From 08fc8467bc221d0c444567e9527973cccb0c723a Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Thu, 25 Jun 2026 22:51:38 +0800 Subject: [PATCH 001/232] Add ask_user_question interaction tool --- docs/architecture.md | 3 +- docs/cordis-catalog/events-and-services.md | 13 +- docs/module-graph.md | 18 +- packages/README.md | 8 +- packages/core/README.md | 2 + packages/core/tool-ask-user/README.md | 18 ++ packages/core/tool-ask-user/package.json | 38 +++ packages/core/tool-ask-user/src/index.ts | 63 +++++ .../tool-ask-user/tests/tool-ask-user.spec.ts | 185 ++++++++++++++ packages/core/tool-ask-user/tsconfig.json | 36 +++ packages/core/user-interaction/README.md | 22 ++ packages/core/user-interaction/package.json | 32 +++ packages/core/user-interaction/src/index.ts | 105 ++++++++ .../tests/user-interaction.spec.ts | 75 ++++++ packages/core/user-interaction/tsconfig.json | 21 ++ packages/support/README.md | 2 +- packages/support/ui-stdio/README.md | 6 +- packages/support/ui-stdio/package.json | 3 +- packages/support/ui-stdio/src/index.ts | 146 ++++++++++- .../support/ui-stdio/tests/readline.spec.ts | 1 + .../support/ui-stdio/tests/ui-stdio.spec.ts | 231 +++++++++++++++++- packages/support/ui-stdio/tsconfig.json | 3 + packages/ui/stdio-agent/README.md | 6 +- packages/ui/stdio-agent/package.json | 4 + packages/ui/stdio-agent/src/index.ts | 4 + .../ui/stdio-agent/tests/built-bin.e2e.ts | 3 +- .../ui/stdio-agent/tests/stdio-agent.spec.ts | 2 + packages/ui/stdio-agent/tsconfig.json | 6 + pnpm-lock.yaml | 39 +++ tsconfig.build.json | 2 + tsconfig.json | 2 + 31 files changed, 1083 insertions(+), 16 deletions(-) create mode 100644 packages/core/tool-ask-user/README.md create mode 100644 packages/core/tool-ask-user/package.json create mode 100644 packages/core/tool-ask-user/src/index.ts create mode 100644 packages/core/tool-ask-user/tests/tool-ask-user.spec.ts create mode 100644 packages/core/tool-ask-user/tsconfig.json create mode 100644 packages/core/user-interaction/README.md create mode 100644 packages/core/user-interaction/package.json create mode 100644 packages/core/user-interaction/src/index.ts create mode 100644 packages/core/user-interaction/tests/user-interaction.spec.ts create mode 100644 packages/core/user-interaction/tsconfig.json diff --git a/docs/architecture.md b/docs/architecture.md index 216ed949b6..36f8aece28 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -50,6 +50,7 @@ Dependency rule: **extension** plugins depend on interface packages, never on `d | `ctx.sessionPersistence` | `SessionPersistence` (abstract) | dsh-session-persistence | durable persistence seam: create/append/load/list sessions | | `ctx.systemPrompt` | `SystemPrompt` | dsh-system-prompt | ordered sections + tool schemas → `assemble()` | | `ctx.tools` | `ToolRegistry` | dsh-tools | tool definitions; `execute()` through waterfall | +| `ctx.userInteraction` | `UserInteractionService` | dsh-user-interaction | UI-backed human question/answer seam for tools and permission flows | | `ctx.agents` | `AgentRegistry` | dsh-agent | live `Agent` handles + the create/resume factory seam (returns an `AgentHandle` = `{ agent, dispose() }` for owned per-agent teardown) | | `ctx.agentLoop` | `AgentLoop` | dsh-agent-loop | creates `ReactLoopAgent`s and drives their loops | | `ctx.bash` | `BashExecutor` (abstract) | dsh-bash | bash execution seam: foreground runs + background tasks | @@ -198,7 +199,7 @@ Every MVP feature (including the TODO-marked ones), with the mechanism that impl | Built-in tools (Read/Write/Edit/Bash/…) | `ctx.tools.register()`; schemas flow into the assembly automatically. **Bash: implemented** — `dsh-bash` (seam) + `dsh-bash-local` (subprocesses) + `dsh-tool-bash` (`bash`/`bash_output`/`bash_kill`, incl. background tasks) | | ToolSearch / progressive disclosure | wrap `agent/request`, filter `req.tools` | | Tool sandbox (landlock / sandbox-exec) | wrap `tools/execute`, or implement a sandboxing `BashExecutor` (the dsh-bash seam) | -| Permission system / AskUserQuestion | wrap `tools/execute` (veto or ask); register an ask tool | +| Permission system / AskUserQuestion | `dsh-user-interaction` provides `ctx.userInteraction`; `dsh-tool-ask-user` registers `ask_user_question`; permission plugins can also wrap `tools/execute` and ask before delegating | | Plan mode | wrap `tools/execute` (deny writes) + `agent/request` (inject mode prompt) | | Sub-agents (spawn / fork / steer) | TODO seam on `AgentLoop.create()`; fork = seed Session with parent events; `steer()` on the child handle | | MCP | one plugin per server: discover tools → `ctx.tools.register()` | diff --git a/docs/cordis-catalog/events-and-services.md b/docs/cordis-catalog/events-and-services.md index f424b8af09..7d926727a0 100644 --- a/docs/cordis-catalog/events-and-services.md +++ b/docs/cordis-catalog/events-and-services.md @@ -301,7 +301,7 @@ Source: [`packages/core/tools/src/index.ts:43`](../../packages/core/tools/src/in ## Services -The 9 `ctx.` services the harness provides. An abstract seam (e.g. `ctx.bash`) is implemented by a separate package; the interface is what consumers code against. +The 10 `ctx.` services the harness provides. An abstract seam (e.g. `ctx.bash`) is implemented by a separate package; the interface is what consumers code against. ### `ctx.agentLoop` — `AgentLoop` @@ -454,6 +454,17 @@ Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../ Source: [`packages/core/tools/src/index.ts:277`](../../packages/core/tools/src/index.ts) +### `ctx.userInteraction` — `UserInteractionService` + +`ctx.userInteraction`: one active UI provider plus an `ask()` surface. + +```ts cordis-catalog +registerProvider(provider: UserInteractionProvider): () => void +async ask(request: AskUserQuestionRequest): Promise +``` + +Source: [`packages/core/user-interaction/src/index.ts:72`](../../packages/core/user-interaction/src/index.ts) + ## Inherited tier (cordis core + loader/hmr/timer) The framework surface every plugin inherits, beyond the harness vocabulary above. This is pinned vendor source ([vendoring policy](../../vendor/README.md)); it is summarized here so the catalog is a complete picture of what `ctx` and the event bus offer, without elevating framework internals to the harness tier's prominence. diff --git a/docs/module-graph.md b/docs/module-graph.md index 93ad58725d..fb21a1184a 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -31,9 +31,7 @@ graph TD tools --> agent tools --> llm tools --> system-prompt - ui-stdio --> agent - ui-stdio --> llm - ui-stdio --> session + user-interaction --> agent acp --> agent acp --> llm acp --> session @@ -48,10 +46,16 @@ graph TD subagent --> agent subagent --> llm subagent --> tools + tool-ask-user --> agent + tool-ask-user --> tools + tool-ask-user --> user-interaction tool-bash --> agent tool-bash --> bash tool-bash --> llm tool-bash --> tools + ui-stdio --> agent + ui-stdio --> session + ui-stdio --> user-interaction agent-core --> agent agent-core --> agent-loop agent-core --> invariants @@ -81,7 +85,9 @@ graph TD stdio-agent --> agent-core stdio-agent --> session stdio-agent --> session-persistence-jsonl + stdio-agent --> tool-ask-user stdio-agent --> ui-stdio + stdio-agent --> user-interaction subagent-fork --> agent subagent-fork --> session subagent-fork --> subagent @@ -107,17 +113,19 @@ graph TD | `session-persistence-jsonl` | `session`, `session-persistence` | | `session-persistence-sqlite` | `session`, `session-persistence` | | `tools` | `agent`, `llm`, `system-prompt` | -| `ui-stdio` | `agent`, `llm`, `session` | +| `user-interaction` | `agent` | | `acp` | `agent`, `llm`, `session`, `session-persistence`, `tools` | | `agent-loop` | `agent`, `llm`, `session`, `session-persistence`, `system-prompt`, `tools` | | `subagent` | `agent`, `llm`, `tools` | +| `tool-ask-user` | `agent`, `tools`, `user-interaction` | | `tool-bash` | `agent`, `bash`, `llm`, `tools` | +| `ui-stdio` | `agent`, `session`, `user-interaction` | | `agent-core` | `agent`, `agent-loop`, `invariants`, `llm`, `session`, `system-prompt`, `tool-bash`, `tools` | | `subagent-acp` | `agent`, `llm`, `subagent` | | `subagent-inprocess` | `agent`, `llm`, `session`, `subagent` | | `subagent-mock` | `agent`, `llm`, `subagent` | | `tool-subagent` | `agent`, `llm`, `subagent`, `tools` | | `acp-agent` | `acp`, `agent-core`, `session-persistence-jsonl` | -| `stdio-agent` | `agent`, `agent-core`, `session`, `session-persistence-jsonl`, `ui-stdio` | +| `stdio-agent` | `agent`, `agent-core`, `session`, `session-persistence-jsonl`, `tool-ask-user`, `ui-stdio`, `user-interaction` | | `subagent-fork` | `agent`, `session`, `subagent`, `subagent-inprocess` | | `subagent-spawn` | `subagent`, `subagent-inprocess` | diff --git a/packages/README.md b/packages/README.md index c24e95838f..0fa915f3ef 100644 --- a/packages/README.md +++ b/packages/README.md @@ -28,7 +28,9 @@ dsh-bash ← dsh-brand (abstract executor seam; b dsh-session ← dsh-llm, dsh-brand dsh-system-prompt ← dsh-llm dsh-agent ← dsh-llm, dsh-session, dsh-brand +dsh-user-interaction ← dsh-agent dsh-tools ← dsh-llm, dsh-system-prompt, dsh-agent +dsh-tool-ask-user ← dsh-tools, dsh-user-interaction dsh-bash-local ← dsh-bash (BashExecutor impl) dsh-tool-bash ← dsh-bash, dsh-tools (bash tool schemas) dsh-llm-deepseek ← dsh-llm (DeepSeek adapter) @@ -36,7 +38,7 @@ dsh-llm-pi-ai ← dsh-llm (pi-ai-backed adapter) dsh-agent-loop ← dsh-llm, dsh-session, dsh-system-prompt, dsh-tools, dsh-agent dsh-invariants ← dsh-llm, dsh-session, dsh-agent (dev-mode contract checks) dsh-acp ← dsh-agent, dsh-llm, dsh-session, dsh-session-persistence (ACP JSON-RPC bridge) -dsh-ui-stdio ← dsh-agent, dsh-llm, dsh-session (stdio readline UI plugin) +dsh-ui-stdio ← dsh-agent, dsh-session, dsh-user-interaction (stdio readline UI plugin + user-interaction provider) dsh-llm-replay ← dsh-llm, dsh-session (record/replay adapter for keyless snapshot tests) dsh-subagent ← dsh-agent, dsh-llm, dsh-tools (abstract subagent provider-registry seam) dsh-subagent-mock ← dsh-subagent (scripted provider for tests) @@ -45,7 +47,7 @@ dsh-subagent-fork ← dsh-subagent-spawn, dsh-agent, dsh-session (in-proces dsh-subagent-acp ← dsh-subagent, dsh-agent, dsh-llm, @agentclientprotocol/sdk (out-of-process child over ACP) dsh-tool-subagent ← dsh-subagent, dsh-tools, dsh-agent (model-facing delegation tool) dsh-agent-core ← timer, dsh-llm, dsh-session, dsh-system-prompt, dsh-tools, dsh-agent, dsh-invariants, dsh-tool-bash, dsh-agent-loop (the providerless spine, as one bundle plugin) -dsh-stdio-agent ← dsh-agent-core, dsh-ui-stdio, dsh-session-persistence-jsonl, dsh-agent, dsh-session (stdio chat APP + bin) +dsh-stdio-agent ← dsh-agent-core, dsh-user-interaction, dsh-tool-ask-user, dsh-ui-stdio, dsh-session-persistence-jsonl, dsh-agent, dsh-session (stdio chat APP + bin) dsh-acp-agent ← dsh-agent-core, dsh-acp, dsh-session-persistence-jsonl (ACP server APP + bin) ``` @@ -59,6 +61,8 @@ The rule: **extension** plugins depend on interfaces, never on the concrete loop | `session/` | `core` | Event-sourced session log + in-memory store | `ctx.sessions` | | `system-prompt/` | `core` | Prompt-section + tool-schema assembly registry | `ctx.systemPrompt` | | `tools/` | `core` | Tool registry + `tools/execute` waterfall | `ctx.tools` | +| `user-interaction/` | `core` | Abstract human question/answer seam | `ctx.userInteraction` | +| `tool-ask-user/` | `core` | Model-facing `ask_user_question` tool | (registers on `ctx.tools`) | | `agent/` | `core` | Agent interface, registry, `agent/*` event vocabulary | `ctx.agents` | | `agent-loop/` | `core` | THE concrete loop plugin: `ReactLoopAgent` + the loop driver | `ctx.agentLoop` | | `agent-core/` | `core` | Bundle plugin: the providerless/executor-less/UI-less spine as code (forwards `agent-loop`'s `agents`) | (loads the spine) | diff --git a/packages/core/README.md b/packages/core/README.md index 8d8805471a..8f65eb9ab9 100644 --- a/packages/core/README.md +++ b/packages/core/README.md @@ -7,6 +7,8 @@ The packages every harness build is assembled from: the session log, the system- | `session/` | Event-sourced session log + in-memory store | `ctx.sessions` | | `system-prompt/` | Prompt-section + tool-schema assembly registry | `ctx.systemPrompt` | | `tools/` | Tool registry + `tools/execute` waterfall | `ctx.tools` | +| `user-interaction/` | Human question/answer seam for tools and permission flows | `ctx.userInteraction` | +| `tool-ask-user/` | Model-facing `ask_user_question` tool over `ctx.userInteraction` | (registers on `ctx.tools`) | | `agent/` | Agent interface, registry, `agent/*` event vocabulary | `ctx.agents` | | `agent-loop/` | The concrete loop plugin: `ReactLoopAgent` + the loop driver | `ctx.agentLoop` | | `agent-core/` | Bundle plugin: the providerless/executor-less/UI-less spine as code | (loads the spine) | diff --git a/packages/core/tool-ask-user/README.md b/packages/core/tool-ask-user/README.md new file mode 100644 index 0000000000..dc0b198d04 --- /dev/null +++ b/packages/core/tool-ask-user/README.md @@ -0,0 +1,18 @@ +# @deepseek-ai/dsh-tool-ask-user + +Model-facing `ask_user_question` tool over `ctx.userInteraction`. It lets the model ask the human a concise question when it needs confirmation, a choice, or missing information before continuing. + +## Tool + +`ask_user_question` accepts: + +- `question` — required question text. +- `header` — optional short heading. +- `options` — optional choices with `label`, `value`, `description`, and `recommended`. +- `allow_custom` — whether free-form answers are allowed; defaults to the provider's normal `true` behavior. + +The tool calls `ctx.userInteraction.ask()` and returns the selected option value or custom answer as a text tool result. + +## Role + +This is the consumer package for the user-interaction seam. It does not render UI and does not know how input is collected; it only translates model arguments into `AskUserQuestionRequest` and returns the human answer to the agent loop. diff --git a/packages/core/tool-ask-user/package.json b/packages/core/tool-ask-user/package.json new file mode 100644 index 0000000000..c1860f48f0 --- /dev/null +++ b/packages/core/tool-ask-user/package.json @@ -0,0 +1,38 @@ +{ + "name": "@deepseek-ai/dsh-tool-ask-user", + "description": "Model-facing ask_user_question tool over the ctx.userInteraction seam", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-agent": "^0.0.1", + "@deepseek-ai/dsh-tools": "^0.0.1", + "@deepseek-ai/dsh-user-interaction": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "devDependencies": { + "@deepseek-ai/dsh-agent": "workspace:^", + "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-system-prompt": "workspace:^", + "@deepseek-ai/dsh-tools": "workspace:^", + "@deepseek-ai/dsh-user-interaction": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/core/tool-ask-user/src/index.ts b/packages/core/tool-ask-user/src/index.ts new file mode 100644 index 0000000000..e574db91f3 --- /dev/null +++ b/packages/core/tool-ask-user/src/index.ts @@ -0,0 +1,63 @@ +/** + * Model-facing `ask_user_question` tool over the `ctx.userInteraction` seam. + * The tool pauses until a UI provider returns a human answer, then feeds that + * answer back into the agent loop as an ordinary tool result. + * + * @module @deepseek-ai/dsh-tool-ask-user + */ + +import type { Context } from 'cordis' +import { defineTool } from '@deepseek-ai/dsh-tools' +import type {} from '@deepseek-ai/dsh-user-interaction' + +export const name = 'tool-ask-user' +export const inject = ['tools', 'userInteraction'] + +const description = 'Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. ' + + 'Use options when possible; mark the recommended option when one is safest.' + +export function apply(ctx: Context): void { + ctx.tools.register(defineTool({ + name: 'ask_user_question', + description, + parameters: { + header: { + type: 'string', + description: 'Optional short heading for the question, such as "Confirm" or "Choose Mode".', + }, + question: { + type: 'string', + required: true, + description: 'The specific question to ask the user.', + }, + options: { + type: 'array', + description: 'Optional mutually exclusive choices to show the user.', + items: { + type: 'object', + properties: { + label: { type: 'string', required: true, description: 'Short user-facing option label.' }, + value: { type: 'string', description: 'Answer text returned to you if this option is selected. Defaults to label.' }, + description: { type: 'string', description: 'One sentence explaining the tradeoff or impact.' }, + recommended: { type: 'boolean', description: 'True for the recommended/default option.' }, + }, + }, + }, + allow_custom: { + type: 'boolean', + description: 'Whether the user may type a free-form answer instead of selecting an option. Defaults to true.', + }, + }, + async execute(args, exec) { + const result = await ctx.userInteraction.ask({ + question: args.question, + ...args.header !== undefined ? { header: args.header } : {}, + ...args.options !== undefined ? { options: args.options } : {}, + ...args.allow_custom !== undefined ? { allowCustom: args.allow_custom } : {}, + ...exec.agent !== undefined ? { agent: exec.agent } : {}, + ...exec.signal !== undefined ? { signal: exec.signal } : {}, + }) + return [{ type: 'text', text: result.answer }] + }, + })) +} diff --git a/packages/core/tool-ask-user/tests/tool-ask-user.spec.ts b/packages/core/tool-ask-user/tests/tool-ask-user.spec.ts new file mode 100644 index 0000000000..ca929533ff --- /dev/null +++ b/packages/core/tool-ask-user/tests/tool-ask-user.spec.ts @@ -0,0 +1,185 @@ +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import { CallId } from '@deepseek-ai/dsh-llm' +import type { Agent } from '@deepseek-ai/dsh-agent' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import UserInteractionService, { type AskUserQuestionRequest } from '@deepseek-ai/dsh-user-interaction' +import * as toolAskUser from '@deepseek-ai/dsh-tool-ask-user' + +interface OptionSchemaShape { + properties: { + options: { + items: { + properties: Record + } + } + } +} + +async function setup() { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(UserInteractionService) + await ctx.plugin(toolAskUser) + return ctx +} + +describe('ask_user_question tool', () => { + it('registers a model-facing tool schema', async () => { + const ctx = await setup() + const schema = ctx.tools.schemas().find(tool => tool.name === 'ask_user_question') + + expect(schema).toMatchObject({ + name: 'ask_user_question', + parameters: { + type: 'object', + properties: { + question: { type: 'string' }, + options: { type: 'array' }, + allow_custom: { type: 'boolean' }, + }, + required: ['question'], + }, + }) + const parameters = schema?.parameters as unknown as OptionSchemaShape + expect(parameters.properties.options.items.properties).toMatchObject({ + description: { type: 'string' }, + recommended: { type: 'boolean' }, + }) + expect(parameters.properties.options.items.properties).not.toHaveProperty('desc') + }) + + it('asks the registered user-interaction provider and returns the answer text', async () => { + const ctx = await setup() + const seen: AskUserQuestionRequest[] = [] + ctx.userInteraction.registerProvider({ + async ask(request) { + seen.push(request) + const option = request.options?.[0] + return option === undefined ? { answer: 'Use pnpm' } : { answer: 'Use pnpm', option } + }, + }) + + const result = await ctx.tools.execute({ + callId: CallId('ask-1'), + name: 'ask_user_question', + arguments: { + question: 'Which package manager should I use?', + options: [{ label: 'pnpm', value: 'Use pnpm', recommended: true }], + allow_custom: false, + }, + }) + + expect(result).toMatchObject({ + isError: false, + content: [{ type: 'text', text: 'Use pnpm' }], + }) + expect(seen).toMatchObject([{ + question: 'Which package manager should I use?', + options: [{ label: 'pnpm', value: 'Use pnpm', recommended: true }], + allowCustom: false, + }]) + }) + + it('passes the tool abort signal to the user-interaction request', async () => { + const ctx = await setup() + const seen: AskUserQuestionRequest[] = [] + ctx.userInteraction.registerProvider({ + async ask(request) { + seen.push(request) + return { answer: 'ok' } + }, + }) + const controller = new AbortController() + + await ctx.tools.execute({ + callId: CallId('ask-2'), + name: 'ask_user_question', + arguments: { question: 'Continue?' }, + signal: controller.signal, + }) + + expect(seen[0]?.signal).toBe(controller.signal) + }) + + it('passes optional header and agent through to the user-interaction request', async () => { + const ctx = await setup() + const seen: AskUserQuestionRequest[] = [] + ctx.userInteraction.registerProvider({ + async ask(request) { + seen.push(request) + return { answer: 'ok' } + }, + }) + const agent = { id: 'main' } as unknown as Agent + + const result = await ctx.tools.execute({ + callId: CallId('ask-3'), + name: 'ask_user_question', + arguments: { header: 'Confirm', question: 'Continue?' }, + agent, + }) + + expect(result.content).toEqual([{ type: 'text', text: 'ok' }]) + expect(seen[0]).toMatchObject({ header: 'Confirm', agent }) + }) + + it('uses an option label when the selected option has no explicit value', async () => { + const ctx = await setup() + ctx.userInteraction.registerProvider({ + async ask(request) { + const option = request.options?.[0] + if (option === undefined) throw new Error('missing option') + return { answer: option.label, option } + }, + }) + + const result = await ctx.tools.execute({ + callId: CallId('ask-4'), + name: 'ask_user_question', + arguments: { + question: 'Pick one', + options: [{ label: 'Fallback label' }], + }, + }) + + expect(result.content).toEqual([{ type: 'text', text: 'Fallback label' }]) + }) + + it('returns the provider-computed answer even when option metadata is present', async () => { + const ctx = await setup() + ctx.userInteraction.registerProvider({ + async ask(request) { + const option = request.options?.[0] + if (option === undefined) throw new Error('missing option') + return { answer: `selected ${option.value}`, option } + }, + }) + + const result = await ctx.tools.execute({ + callId: CallId('ask-5'), + name: 'ask_user_question', + arguments: { + question: 'Pick one', + options: [{ label: 'A', value: 'a' }], + }, + }) + + expect(result.content).toEqual([{ type: 'text', text: 'selected a' }]) + }) + + it('unregisters the tool when its plugin fiber is disposed', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(UserInteractionService) + const fiber = await ctx.plugin(toolAskUser) + expect(ctx.tools.get('ask_user_question')).toBeDefined() + + await fiber.dispose() + + expect(ctx.tools.get('ask_user_question')).toBeUndefined() + }) +}) diff --git a/packages/core/tool-ask-user/tsconfig.json b/packages/core/tool-ask-user/tsconfig.json new file mode 100644 index 0000000000..f51b8c4495 --- /dev/null +++ b/packages/core/tool-ask-user/tsconfig.json @@ -0,0 +1,36 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../../vendor/schemastery" + }, + { + "path": "../../llm/llm" + }, + { + "path": "../agent" + }, + { + "path": "../system-prompt" + }, + { + "path": "../tools" + }, + { + "path": "../user-interaction" + } + ] +} diff --git a/packages/core/user-interaction/README.md b/packages/core/user-interaction/README.md new file mode 100644 index 0000000000..0576495644 --- /dev/null +++ b/packages/core/user-interaction/README.md @@ -0,0 +1,22 @@ +# @deepseek-ai/dsh-user-interaction + +Abstract user-interaction seam. It owns `ctx.userInteraction`, the service a model-facing tool or permission plugin uses when it needs to pause work and ask the human for a decision. + +## Service: `UserInteractionService` (ctx key: `userInteraction`) + +### Public API + +- `ctx.userInteraction.registerProvider(provider): () => void` Register the UI-side provider. Only one provider may be active in a context; disposal unregisters it. +- `ctx.userInteraction.ask(request): Promise` Ask the active provider and wait for the answer. + +### Key Types + +- `AskUserQuestionRequest` — `{ question, header?, options?, allowCustom?, agent?, signal? }`. +- `AskUserQuestionOption` — `{ label, value?, description?, recommended? }`. +- `AskUserQuestionAnswer` — `{ answer, option? }`. +- `UserInteractionProvider` — UI implementation with `ask(request)`. +- `UserInteractionError` — `HarnessError` subclass with codes such as `NO_PROVIDER`, `DUPLICATE_PROVIDER`, and `ASK_ABORTED`. + +## Role + +This is the interface package. Model-facing consumers such as `@deepseek-ai/dsh-tool-ask-user` depend on this seam; UI implementations such as `@deepseek-ai/dsh-ui-stdio` provide the provider. The loop stays unchanged: a tool call simply awaits a promise, and the tool result resumes the normal agent loop. diff --git a/packages/core/user-interaction/package.json b/packages/core/user-interaction/package.json new file mode 100644 index 0000000000..2b96284aca --- /dev/null +++ b/packages/core/user-interaction/package.json @@ -0,0 +1,32 @@ +{ + "name": "@deepseek-ai/dsh-user-interaction", + "description": "Abstract user-interaction seam (ctx.userInteraction) for asking the human during agent runs", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-agent": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "devDependencies": { + "@deepseek-ai/dsh-agent": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/core/user-interaction/src/index.ts b/packages/core/user-interaction/src/index.ts new file mode 100644 index 0000000000..95c0847e27 --- /dev/null +++ b/packages/core/user-interaction/src/index.ts @@ -0,0 +1,105 @@ +/** + * User-interaction seam (`ctx.userInteraction`): a UI-backed service for + * pausing an agent tool call until the human answers a question. The model- + * facing tool lives in `@deepseek-ai/dsh-tool-ask-user`; UI packages provide + * the single active provider. + * + * @module @deepseek-ai/dsh-user-interaction + */ + +import { Context, Service } from 'cordis' +import type { Agent } from '@deepseek-ai/dsh-agent' + +declare module 'cordis' { + interface Context { + userInteraction: UserInteractionService + } +} + +/** One selectable answer offered to the user. */ +export interface AskUserQuestionOption { + /** User-facing label. */ + label: string + /** Value returned to the model when selected. Defaults to `label`. */ + value?: string + /** Optional extra context rendered by capable UIs. */ + description?: string + /** Marks the recommended/default option. */ + recommended?: boolean +} + +/** Request for a human answer. */ +export interface AskUserQuestionRequest { + /** The question to display. */ + question: string + /** Optional short heading/group label. */ + header?: string + /** Optional choices the UI can render as a menu. */ + options?: AskUserQuestionOption[] + /** Whether free-form answers are accepted. Defaults to `true`. */ + allowCustom?: boolean + /** Calling agent, when the request came from an agent tool call. */ + agent?: Agent + /** Abort signal for the owning tool/step. */ + signal?: AbortSignal +} + +/** The human's answer. */ +export interface AskUserQuestionAnswer { + /** Model-facing answer text. */ + answer: string + /** The selected option, when the answer came from `options`. */ + option?: AskUserQuestionOption +} + +/** UI-side provider for user questions. */ +export interface UserInteractionProvider { + ask(request: AskUserQuestionRequest): Promise +} + +/** Stable error taxonomy for user-interaction failures. */ +export class UserInteractionError extends Error { + readonly code: string + + constructor(message: string, code: string, options?: ErrorOptions) { + super(message, options) + this.code = code + this.name = 'UserInteractionError' + } +} + +/** `ctx.userInteraction`: one active UI provider plus an `ask()` surface. */ +export class UserInteractionService extends Service { + private provider: UserInteractionProvider | undefined + + constructor(ctx: Context) { + super(ctx, 'userInteraction') + } + + /** Register the UI provider. Only one provider may be active in a context. */ + registerProvider(provider: UserInteractionProvider): () => void { + const dispose = this.ctx.effect(function* (this: UserInteractionService) { + if (this.provider !== undefined) { + throw new UserInteractionError('a user-interaction provider is already registered', 'DUPLICATE_PROVIDER') + } + this.provider = provider + yield () => { + this.provider = undefined + } + }.bind(this), 'userInteraction.registerProvider()') + return () => void dispose() + } + + /** Ask the active UI provider and wait for the user's answer. */ + async ask(request: AskUserQuestionRequest): Promise { + if (request.signal?.aborted) { + throw new UserInteractionError('ask_user_question was aborted before the user answered', 'ASK_ABORTED') + } + if (this.provider === undefined) { + throw new UserInteractionError('no user-interaction provider is registered', 'NO_PROVIDER') + } + return this.provider.ask(request) + } +} + +export default UserInteractionService diff --git a/packages/core/user-interaction/tests/user-interaction.spec.ts b/packages/core/user-interaction/tests/user-interaction.spec.ts new file mode 100644 index 0000000000..8b7eefc48c --- /dev/null +++ b/packages/core/user-interaction/tests/user-interaction.spec.ts @@ -0,0 +1,75 @@ +import { describe, expect, it, vi } from 'vitest' +import { Context } from 'cordis' +import UserInteractionService, { + UserInteractionError, + type AskUserQuestionRequest, + type UserInteractionProvider, +} from '@deepseek-ai/dsh-user-interaction' + +function provider(answer = 'approved'): UserInteractionProvider & { seen: AskUserQuestionRequest[] } { + const seen: AskUserQuestionRequest[] = [] + return { + seen, + async ask(request) { + seen.push(request) + return { answer } + }, + } +} + +describe('UserInteractionService', () => { + it('delegates ask requests to the registered provider', async () => { + const ctx = new Context() + await ctx.plugin(UserInteractionService) + const p = provider('yes') + ctx.userInteraction.registerProvider(p) + + const result = await ctx.userInteraction.ask({ question: 'Proceed?' }) + + expect(result).toEqual({ answer: 'yes' }) + expect(p.seen).toEqual([{ question: 'Proceed?' }]) + }) + + it('rejects ask requests when no provider is registered', async () => { + const ctx = new Context() + await ctx.plugin(UserInteractionService) + + await expect(ctx.userInteraction.ask({ question: 'Proceed?' })) + .rejects.toMatchObject({ name: 'UserInteractionError', code: 'NO_PROVIDER' }) + }) + + it('registers providers with HMR-safe disposal', async () => { + const ctx = new Context() + await ctx.plugin(UserInteractionService) + const p = provider() + const dispose = ctx.userInteraction.registerProvider(p) + + dispose() + dispose() + + await expect(ctx.userInteraction.ask({ question: 'Proceed?' })) + .rejects.toMatchObject({ code: 'NO_PROVIDER' }) + }) + + it('rejects duplicate providers instead of replacing the active UI', async () => { + const ctx = new Context() + await ctx.plugin(UserInteractionService) + ctx.userInteraction.registerProvider(provider('first')) + + expect(() => ctx.userInteraction.registerProvider(provider('second'))) + .toThrow(UserInteractionError) + }) + + it('fails before reaching the provider when the signal is already aborted', async () => { + const ctx = new Context() + await ctx.plugin(UserInteractionService) + const p = { ask: vi.fn(async () => ({ answer: 'too late' })) } + ctx.userInteraction.registerProvider(p) + const controller = new AbortController() + controller.abort() + + await expect(ctx.userInteraction.ask({ question: 'Proceed?', signal: controller.signal })) + .rejects.toMatchObject({ code: 'ASK_ABORTED' }) + expect(p.ask).not.toHaveBeenCalled() + }) +}) diff --git a/packages/core/user-interaction/tsconfig.json b/packages/core/user-interaction/tsconfig.json new file mode 100644 index 0000000000..41720b3057 --- /dev/null +++ b/packages/core/user-interaction/tsconfig.json @@ -0,0 +1,21 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../agent" + } + ] +} diff --git a/packages/support/README.md b/packages/support/README.md index 52f7f6fe25..5358dce364 100644 --- a/packages/support/README.md +++ b/packages/support/README.md @@ -5,7 +5,7 @@ Packages that exist to serve development, testing, and the examples rather than | Package | Role | ctx key | |---|---|---| | `invariants/` | Dev-mode event-contract invariants + session-log freeze | (listens on `session/*`, `agent/*`) | -| `ui-stdio/` | Minimal stdio (readline) UI plugin: renders `agent/*` events, feeds stdin lines to the agent | (drives `ctx.agents`) | +| `ui-stdio/` | Minimal stdio (readline) UI plugin: renders `agent/*` events, feeds stdin lines to the agent, and provides `ctx.userInteraction` answers | (drives `ctx.agents`, registers a user-interaction provider) | | `llm-replay/` | Record/replay adapter: short-circuits `llm/stream` from a recorded session JSONL (keyless snapshot tests) | (listens on `llm/stream`) | `invariants` runs only in dev mode (contract checks, not runtime behavior). `ui-stdio` and `llm-replay` were extracted from the examples for reuse and to bring them under the per-file coverage gate; they back the demos and the snapshot test tier. A package graduates OUT of `support/` into a product group only when it gains documented product consumers. diff --git a/packages/support/ui-stdio/README.md b/packages/support/ui-stdio/README.md index b65fd4d8e1..f65452ace5 100644 --- a/packages/support/ui-stdio/README.md +++ b/packages/support/ui-stdio/README.md @@ -1,6 +1,6 @@ # @deepseek-ai/dsh-ui-stdio -A minimal stdio (readline) UI, as a plugin. It reads lines from stdin and feeds them to an agent (`send` when idle, `steer` while a turn is running), and renders that agent's streamed output and tool activity to stdout. A UI is "just a plugin" here — it only consumes the `agent/*` event taxonomy plus the `agents` service (`inject: ['agents']`), so the same plugin drives any example or product surface. +A minimal stdio (readline) UI, as a plugin. It reads lines from stdin and feeds them to an agent (`send` when idle, `steer` while a turn is running), renders that agent's streamed output and tool activity to stdout, and provides the `ctx.userInteraction` answer provider for `ask_user_question`. A UI is "just a plugin" here — it consumes the `agent/*` event taxonomy plus the `agents` and `userInteraction` services (`inject: ['agents', 'userInteraction']`), so the same plugin drives any example or product surface with the required seam loaded. This package consolidates what were two near-identical copies under `examples/echo-agent` and `examples/coding-agent`. The coding copy was a superset; this package IS that superset — dimmed chain-of-thought rendering plus robust piped-stdin EOF handling — with the per-consumer differences moved into `Config`. @@ -26,6 +26,10 @@ Rendering is **global** — every agent's events are written to stdout, not just - `agent/turn-start` / `agent/turn-end` — a `[ turn N]` header and a trailing `> ` prompt. - `session/event` — `tool/call` renders `[tool call] name(args)`; `tool/result` renders the joined text blocks as `[tool result] …`. +## User Questions + +When `ctx.userInteraction.ask()` is called, the UI writes the question, renders numbered options when provided, and treats the next stdin line as the answer instead of sending it to the agent. Recommended options render first, option details render from `description`, a numeric line selects the displayed option, an empty line selects the recommended option when one exists, and a non-empty free-form line is accepted when `allowCustom` is not `false`. + ## The I/O seam The production entry point `apply(ctx, config)` binds the real `process` streams. The testable core is `createStdioChat(ctx, config, runtime)`, where `runtime: StdioRuntime` supplies `input` / `output` / `exit`. This seam is deliberately **not** part of the serializable `Config` (streams and functions do not belong in YAML config); it exists so the render, EOF, and disposal branches can be exercised with fakes instead of hijacking globals. diff --git a/packages/support/ui-stdio/package.json b/packages/support/ui-stdio/package.json index 5d65356e79..aa4edbc37e 100644 --- a/packages/support/ui-stdio/package.json +++ b/packages/support/ui-stdio/package.json @@ -23,8 +23,8 @@ "license": "BSD-3-Clause", "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", - "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-session": "^0.0.1", + "@deepseek-ai/dsh-user-interaction": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "dependencies": { @@ -34,6 +34,7 @@ "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", + "@deepseek-ai/dsh-user-interaction": "workspace:^", "cordis": "^4.0.0-rc.6" } } diff --git a/packages/support/ui-stdio/src/index.ts b/packages/support/ui-stdio/src/index.ts index 070e842094..26a1e37754 100644 --- a/packages/support/ui-stdio/src/index.ts +++ b/packages/support/ui-stdio/src/index.ts @@ -23,9 +23,15 @@ import type { Readable, Writable } from 'node:stream' import type { Context } from 'cordis' import z from 'schemastery' import { AgentId } from '@deepseek-ai/dsh-agent' +import { + UserInteractionError, + type AskUserQuestionAnswer, + type AskUserQuestionOption, + type AskUserQuestionRequest, +} from '@deepseek-ai/dsh-user-interaction' export const name = 'ui-stdio' -export const inject = ['agents'] +export const inject = ['agents', 'userInteraction'] /** Serializable plugin configuration (cordis-native, schemastery). */ export interface Config { @@ -60,6 +66,27 @@ function isTTYPair(input: Readable, output: Writable): boolean { return Boolean((input as { isTTY?: boolean }).isTTY && (output as { isTTY?: boolean }).isTTY) } +function optionAnswer(option: AskUserQuestionOption): string { + return option.value ?? option.label +} + +function displayOptions(options: AskUserQuestionOption[] = []): AskUserQuestionOption[] { + return options + .map((option, index) => ({ option, index })) + .sort((left, right) => { + if (left.option.recommended === right.option.recommended) return left.index - right.index + return left.option.recommended ? -1 : 1 + }) + .map(({ option }) => option) +} + +interface PendingQuestion { + request: AskUserQuestionRequest + resolve(answer: AskUserQuestionAnswer): void + reject(error: unknown): void + onAbort: () => void +} + /** * The plugin body, parameterized over its I/O runtime. `apply` is the thin * production wrapper that binds the real `process` streams; tests call this @@ -100,6 +127,12 @@ export function createStdioChat(ctx: Context, config: Config, runtime: StdioRunt output.write('\n> ') }) + ctx.on('agent/error', (agent, turn, step, error) => { + if (inReasoning) output.write('\x1B[0m') + inReasoning = false + output.write(`\n[${agent.id} turn ${turn} step ${step} error] ${error.message}\n> `) + }) + ctx.on('session/event', (_session, event) => { if (event.type === 'tool/call') { const { name: toolName, arguments: args } = event.data @@ -130,6 +163,8 @@ export function createStdioChat(ctx: Context, config: Config, runtime: StdioRunt let submittedWork = false let sawRunning = false let exitTimer: ReturnType | undefined + let activeQuestion: PendingQuestion | undefined + const questionQueue: PendingQuestion[] = [] const maybeExit = (): void => { if (disposed || !stdinClosed) return @@ -156,7 +191,113 @@ export function createStdioChat(ctx: Context, config: Config, runtime: StdioRunt if (status === 'idle') maybeExit() }) + const renderQuestion = (pending: PendingQuestion): void => { + const { request } = pending + output.write('\n') + output.write(request.header ? `[${request.header}] ${request.question}\n` : `[question] ${request.question}\n`) + displayOptions(request.options).forEach((option, index) => { + output.write(` ${index + 1}. ${option.label}${option.recommended ? ' (recommended)' : ''}\n`) + if (option.description) output.write(` ${option.description}\n`) + }) + output.write('> ') + } + + const removeAbortListener = (pending: PendingQuestion): void => { + pending.request.signal?.removeEventListener('abort', pending.onAbort) + } + + const startNextQuestion = (): void => { + if (activeQuestion !== undefined) return + const pending = questionQueue.shift() + if (pending === undefined) return + if (pending.request.signal?.aborted) { + pending.reject(new UserInteractionError('ask_user_question was aborted before the user answered', 'ASK_ABORTED')) + startNextQuestion() + return + } + activeQuestion = pending + pending.request.signal?.addEventListener('abort', pending.onAbort, { once: true }) + renderQuestion(pending) + } + + const disposeQuestion = (pending: PendingQuestion): void => { + removeAbortListener(pending) + pending.reject(new UserInteractionError('ask_user_question was interrupted before the user answered', 'ASK_ABORTED')) + } + + const disposePendingQuestions = (): void => { + if (activeQuestion !== undefined) { + disposeQuestion(activeQuestion) + activeQuestion = undefined + } + for (const pending of questionQueue.splice(0)) { + disposeQuestion(pending) + } + } + + const finishQuestion = (pending: PendingQuestion, answer: AskUserQuestionAnswer): void => { + removeAbortListener(pending) + activeQuestion = undefined + pending.resolve(answer) + output.write('\n') + startNextQuestion() + } + + const answerQuestion = (line: string): void => { + const pending = activeQuestion as PendingQuestion + + const text = line.trim() + const options = displayOptions(pending.request.options) + const selectedIndex = /^\d+$/.test(text) ? Number(text) - 1 : -1 + const selected = selectedIndex >= 0 ? options[selectedIndex] : undefined + if (selected !== undefined) { + finishQuestion(pending, { answer: optionAnswer(selected), option: selected }) + return + } + + const recommended = options.find(option => option.recommended) + if (text === '' && recommended !== undefined) { + finishQuestion(pending, { answer: optionAnswer(recommended), option: recommended }) + return + } + + const allowCustom = pending.request.allowCustom ?? true + if (allowCustom && text !== '') { + finishQuestion(pending, { answer: text }) + return + } + + output.write(options.length > 0 + ? 'Please enter one of the option numbers' + + (allowCustom ? ' or a custom answer' : '') + + '.\n> ' + : 'Please enter an answer.\n> ') + } + + const disposeUserInteractionProvider = ctx.userInteraction.registerProvider({ + ask(request) { + return new Promise((resolve, reject) => { + const pending: PendingQuestion = { + request, + resolve, + reject, + onAbort: () => { + activeQuestion = undefined + disposeQuestion(pending) + startNextQuestion() + }, + } + questionQueue.push(pending) + startNextQuestion() + }) + }, + }) + reader.on('line', (line) => { + if (activeQuestion !== undefined) { + answerQuestion(line) + return + } const text = line.trim() if (!text) return const agent = ctx.agents.get(agentId) @@ -175,12 +316,15 @@ export function createStdioChat(ctx: Context, config: Config, runtime: StdioRunt // Fires for BOTH stdin EOF and plugin disposal (reader.close() below); // `disposed` guards teardown so HMR/dispose never exits the process. stdinClosed = true + if (!disposed) disposePendingQuestions() maybeExit() }) output.write(`${welcome}\n> `) return () => { disposed = true if (exitTimer !== undefined) clearTimeout(exitTimer) + disposePendingQuestions() + disposeUserInteractionProvider() disposeStatusListener() reader.close() } diff --git a/packages/support/ui-stdio/tests/readline.spec.ts b/packages/support/ui-stdio/tests/readline.spec.ts index c8b147ddab..2b7e115026 100644 --- a/packages/support/ui-stdio/tests/readline.spec.ts +++ b/packages/support/ui-stdio/tests/readline.spec.ts @@ -16,6 +16,7 @@ function fakeContext(): Context { return { on: vi.fn(() => vi.fn()), effect: vi.fn((callback: () => () => void) => callback()), + userInteraction: { registerProvider: vi.fn(() => vi.fn()) }, } as unknown as Context } diff --git a/packages/support/ui-stdio/tests/ui-stdio.spec.ts b/packages/support/ui-stdio/tests/ui-stdio.spec.ts index bd5e0f7f91..e40847ae51 100644 --- a/packages/support/ui-stdio/tests/ui-stdio.spec.ts +++ b/packages/support/ui-stdio/tests/ui-stdio.spec.ts @@ -5,6 +5,7 @@ import type { Agent, AgentStatus } from '@deepseek-ai/dsh-agent' import AgentRegistry from '@deepseek-ai/dsh-agent' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import type { Session, SessionEvent } from '@deepseek-ai/dsh-session' +import UserInteractionService from '@deepseek-ai/dsh-user-interaction' import { createStdioChat, type Config, type StdioRuntime } from '../src/index.ts' /** @@ -66,10 +67,11 @@ const CONFIG: Config = { welcome: 'hi there', agent: 'main' } async function setup(config: Config = CONFIG, runtimeOver: Partial = {}) { const ctx = new Context() await ctx.plugin(AgentRegistry) + await ctx.plugin(UserInteractionService) const { runtime, input, out, exit } = makeRuntime(runtimeOver) const fiber = await ctx.plugin(Object.assign((inner: Context) => { createStdioChat(inner, config, runtime) - }, { inject: ['agents'] })) + }, { inject: ['agents', 'userInteraction'] })) return { ctx, fiber, input, out, exit } } @@ -171,9 +173,236 @@ describe('createStdioChat rendering', () => { } as SessionEvent) expect(out.text()).toBe(before) }) + + it('renders agent errors so failed model requests are visible in stdio', async () => { + const { ctx, out } = await setup() + const agent = makeAgent('main') + + ctx.emit('agent/error', agent, 1, 1, new Error('fetch failed')) + + expect(out.text()).toContain('\n[main turn 1 step 1 error] fetch failed\n> ') + }) + + it('resets dim styling when an agent error interrupts reasoning', async () => { + const { ctx, out } = await setup() + const agent = makeAgent('main') + + ctx.emit('agent/stream-chunk', agent, 1, 0, { type: 'reasoning-delta', index: 0, text: 'thinking' }) + ctx.emit('agent/error', agent, 1, 1, new Error('fetch failed')) + + expect(out.text()).toContain('\x1B[2mthinking\x1B[0m\n[main turn 1 step 1 error] fetch failed') + }) }) describe('createStdioChat input', () => { + it('answers a pending user question instead of sending the line to the agent', async () => { + const { ctx, input, out } = await setup() + const agent = makeAgent('main', 'idle') + ctx.agents.register(agent) + + const answer = ctx.userInteraction.ask({ + header: 'Confirm', + question: 'Proceed with the edit?', + options: [{ label: 'Yes', value: 'Proceed', description: 'Apply the edit now.', recommended: true }], + }) + await new Promise(r => setImmediate(r)) + input.feed('Use a smaller change') + + await expect(answer).resolves.toEqual({ answer: 'Use a smaller change' }) + expect(agent.sent).toEqual([]) + expect(out.text()).toContain('[Confirm] Proceed with the edit?') + expect(out.text()).toContain('1. Yes (recommended)') + expect(out.text()).toContain('Apply the edit now.') + }) + + it('answers a pending user question by numeric option selection', async () => { + const { ctx, input } = await setup() + const answer = ctx.userInteraction.ask({ + question: 'Which mode?', + options: [ + { label: 'Safe', value: 'Use safe mode', recommended: true }, + { label: 'Fast', value: 'Use fast mode' }, + ], + allowCustom: false, + }) + await new Promise(r => setImmediate(r)) + input.feed('2') + + await expect(answer).resolves.toEqual({ + answer: 'Use fast mode', + option: { label: 'Fast', value: 'Use fast mode' }, + }) + }) + + it('renders recommended options first and selects by displayed number', async () => { + const { ctx, input, out } = await setup() + const answer = ctx.userInteraction.ask({ + question: 'Which topic?', + options: [ + { label: 'Hobbies', value: 'hobbies' }, + { label: 'Work', value: 'work', description: 'Questions about current projects.' }, + { label: 'Casual', value: 'casual', recommended: true, description: 'Easy conversation.' }, + ], + allowCustom: false, + }) + await new Promise(r => setImmediate(r)) + + expect(out.text()).toContain([ + '[question] Which topic?', + ' 1. Casual (recommended)', + ' Easy conversation.', + ' 2. Hobbies', + ' 3. Work', + ' Questions about current projects.', + ].join('\n')) + input.feed('1') + + await expect(answer).resolves.toEqual({ + answer: 'casual', + option: { label: 'Casual', value: 'casual', recommended: true, description: 'Easy conversation.' }, + }) + }) + + it('uses the recommended option when the user submits an empty answer', async () => { + const { ctx, input } = await setup() + const answer = ctx.userInteraction.ask({ + question: 'Continue?', + options: [ + { label: 'No' }, + { label: 'Yes', value: 'Continue', recommended: true }, + ], + allowCustom: false, + }) + await new Promise(r => setImmediate(r)) + input.feed('') + + await expect(answer).resolves.toEqual({ + answer: 'Continue', + option: { label: 'Yes', value: 'Continue', recommended: true }, + }) + }) + + it('re-prompts when options are required and the input is invalid', async () => { + const { ctx, input, out } = await setup() + const answer = ctx.userInteraction.ask({ + question: 'Which mode?', + options: [{ label: 'Safe' }], + allowCustom: false, + }) + await new Promise(r => setImmediate(r)) + input.feed('custom') + await new Promise(r => setImmediate(r)) + expect(out.text()).toContain('Please enter one of the option numbers.') + input.feed('1') + + await expect(answer).resolves.toEqual({ + answer: 'Safe', + option: { label: 'Safe' }, + }) + }) + + it('re-prompts with custom-answer guidance when options also allow free-form input', async () => { + const { ctx, input, out } = await setup() + const answer = ctx.userInteraction.ask({ + question: 'Which mode?', + options: [{ label: 'Safe' }], + }) + await new Promise(r => setImmediate(r)) + input.feed('') + await new Promise(r => setImmediate(r)) + expect(out.text()).toContain('Please enter one of the option numbers or a custom answer.') + input.feed('Use custom mode') + + await expect(answer).resolves.toEqual({ answer: 'Use custom mode' }) + }) + + it('re-prompts when a free-form question receives an empty answer', async () => { + const { ctx, input, out } = await setup() + const answer = ctx.userInteraction.ask({ question: 'What should I use?' }) + await new Promise(r => setImmediate(r)) + input.feed('') + await new Promise(r => setImmediate(r)) + expect(out.text()).toContain('Please enter an answer.') + input.feed('Use defaults') + + await expect(answer).resolves.toEqual({ answer: 'Use defaults' }) + }) + + it('rejects an active question when its signal aborts', async () => { + const { ctx } = await setup() + const controller = new AbortController() + const answer = ctx.userInteraction.ask({ question: 'Continue?', signal: controller.signal }) + const rejected = expect(answer).rejects.toMatchObject({ code: 'ASK_ABORTED' }) + await new Promise(r => setImmediate(r)) + + controller.abort() + + await rejected + }) + + it('continues to the next queued question when the active question aborts', async () => { + const { ctx, input, out } = await setup() + const controller = new AbortController() + const first = ctx.userInteraction.ask({ question: 'First?', signal: controller.signal }) + const firstRejected = expect(first).rejects.toMatchObject({ code: 'ASK_ABORTED' }) + const second = ctx.userInteraction.ask({ question: 'Second?' }) + await new Promise(r => setImmediate(r)) + + controller.abort() + await firstRejected + await new Promise(r => setImmediate(r)) + expect(out.text()).toContain('[question] Second?') + input.feed('second answer') + + await expect(second).resolves.toEqual({ answer: 'second answer' }) + }) + + it('skips a queued question whose signal aborted before it became active', async () => { + const { ctx, input, out } = await setup() + const controller = new AbortController() + const first = ctx.userInteraction.ask({ question: 'First?' }) + const second = ctx.userInteraction.ask({ question: 'Second?', signal: controller.signal }) + const secondRejected = expect(second).rejects.toMatchObject({ code: 'ASK_ABORTED' }) + await new Promise(r => setImmediate(r)) + + controller.abort() + input.feed('first answer') + + await expect(first).resolves.toEqual({ answer: 'first answer' }) + await secondRejected + expect(out.text()).not.toContain('[question] Second?') + }) + + it('rejects active and queued questions when the UI is disposed', async () => { + const { ctx, fiber } = await setup() + const active = ctx.userInteraction.ask({ question: 'Active?' }) + const queued = ctx.userInteraction.ask({ question: 'Queued?' }) + const activeRejected = expect(active).rejects.toMatchObject({ code: 'ASK_ABORTED' }) + const queuedRejected = expect(queued).rejects.toMatchObject({ code: 'ASK_ABORTED' }) + await new Promise(r => setImmediate(r)) + + await fiber.dispose() + + await activeRejected + await queuedRejected + }) + + it('rejects active and queued questions when stdin closes before the user answers', async () => { + const { ctx, input, exit } = await setup() + const active = ctx.userInteraction.ask({ question: 'Active?' }) + const queued = ctx.userInteraction.ask({ question: 'Queued?' }) + const activeRejected = expect(active).rejects.toMatchObject({ code: 'ASK_ABORTED' }) + const queuedRejected = expect(queued).rejects.toMatchObject({ code: 'ASK_ABORTED' }) + await new Promise(r => setImmediate(r)) + + input.finish() + await new Promise(r => setImmediate(r)) + + await activeRejected + await queuedRejected + expect(exit).not.toHaveBeenCalled() + }) + it('sends a typed line to an idle agent', async () => { const { ctx, input } = await setup() const agent = makeAgent('main', 'idle') diff --git a/packages/support/ui-stdio/tsconfig.json b/packages/support/ui-stdio/tsconfig.json index b333de0302..e778da89bf 100644 --- a/packages/support/ui-stdio/tsconfig.json +++ b/packages/support/ui-stdio/tsconfig.json @@ -20,6 +20,9 @@ { "path": "../../core/agent" }, + { + "path": "../../core/user-interaction" + }, { "path": "../../llm/llm" }, diff --git a/packages/ui/stdio-agent/README.md b/packages/ui/stdio-agent/README.md index a78df0fa72..1cde841449 100644 --- a/packages/ui/stdio-agent/README.md +++ b/packages/ui/stdio-agent/README.md @@ -1,5 +1,7 @@ # @deepseek-ai/dsh-stdio-agent +Terminal stdio chat app. It composes the agent-core spine with JSONL persistence, the readline stdio UI, the user-interaction seam, and the `ask_user_question` tool so the demo/coding front door can pause for human confirmation. + The **terminal stdio chat app**: a Cordis app plugin that composes the providerless agent spine ([`@deepseek-ai/dsh-agent-core`](../../core/agent-core/README.md)) with the front-door cluster a terminal chat needs, and a `bin` that boots a leaf `cordis.yml`. It is the readline counterpart to [`@deepseek-ai/dsh-acp-agent`](../acp-agent/README.md): both consume the same spine, but each bakes in the OPPOSITE front-door cluster. @@ -13,7 +15,9 @@ A terminal chat always wants the same cluster, so the package owns it rather tha | `@cordisjs/plugin-logger-console` | the console logger — stdout is just the terminal here, so logging to it is correct (the ACP app must NOT have this) | | `@deepseek-ai/dsh-agent-core` | the spine, pre-creating a `main` agent from this app's `model`/`systemPrompt` | | `@deepseek-ai/dsh-session-persistence-jsonl` | durable JSONL session log under `persistenceRoot` | -| `@deepseek-ai/dsh-ui-stdio` | the readline UI, bound to the `main` agent | +| `@deepseek-ai/dsh-user-interaction` | the human question/answer seam used by confirmation tools | +| `@deepseek-ai/dsh-tool-ask-user` | the model-facing `ask_user_question` tool | +| `@deepseek-ai/dsh-ui-stdio` | the readline UI, bound to the `main` agent, and the user-interaction provider | `@cordisjs/plugin-hmr` (the dev/demo edit-reload loop) is deliberately a **leaf** entry, NOT baked in here: it is a Loader-only, subprocess-only dev plugin — its constructor throws without `node --expose-internals` + a live `loader`, and the in-process test tier cannot even import it (so a package whose `apply` statically pulled it in could never carry the per-file coverage gate). Unlike the console logger, a stray `hmr` is not a stdout-purity footgun, so leaving it at the leaf costs no safety. The `demo:echo` / `demo:coding` leaves load it and pass `--expose-internals`. diff --git a/packages/ui/stdio-agent/package.json b/packages/ui/stdio-agent/package.json index bc9c98a411..caf56210cc 100644 --- a/packages/ui/stdio-agent/package.json +++ b/packages/ui/stdio-agent/package.json @@ -37,7 +37,9 @@ "@deepseek-ai/dsh-agent-core": "^0.0.1", "@deepseek-ai/dsh-session": "^0.0.1", "@deepseek-ai/dsh-session-persistence-jsonl": "^0.0.1", + "@deepseek-ai/dsh-tool-ask-user": "^0.0.1", "@deepseek-ai/dsh-ui-stdio": "^0.0.1", + "@deepseek-ai/dsh-user-interaction": "^0.0.1", "cordis": "^4.0.0-rc.6", "schemastery": "^3.17.0" }, @@ -49,7 +51,9 @@ "@deepseek-ai/dsh-agent-core": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", "@deepseek-ai/dsh-session-persistence-jsonl": "workspace:^", + "@deepseek-ai/dsh-tool-ask-user": "workspace:^", "@deepseek-ai/dsh-ui-stdio": "workspace:^", + "@deepseek-ai/dsh-user-interaction": "workspace:^", "cordis": "^4.0.0-rc.6", "schemastery": "^3.17.0" } diff --git a/packages/ui/stdio-agent/src/index.ts b/packages/ui/stdio-agent/src/index.ts index c4b9ed202c..efdf55f0a1 100644 --- a/packages/ui/stdio-agent/src/index.ts +++ b/packages/ui/stdio-agent/src/index.ts @@ -41,6 +41,8 @@ import { AgentId } from '@deepseek-ai/dsh-agent' import { SessionId } from '@deepseek-ai/dsh-session' import * as agentCore from '@deepseek-ai/dsh-agent-core' import SessionPersistenceJsonl from '@deepseek-ai/dsh-session-persistence-jsonl' +import UserInteractionService from '@deepseek-ai/dsh-user-interaction' +import * as toolAskUser from '@deepseek-ai/dsh-tool-ask-user' import * as uiStdio from '@deepseek-ai/dsh-ui-stdio' export const name = 'stdio-agent' @@ -94,5 +96,7 @@ export function apply(ctx: Context, config: Config): void { }], }) ctx.plugin(SessionPersistenceJsonl, { root: config.persistenceRoot ?? './.sessions' }) + ctx.plugin(UserInteractionService) + ctx.plugin(toolAskUser) ctx.plugin(uiStdio, { welcome: config.welcome ?? 'ready.', agent: 'main' }) } diff --git a/packages/ui/stdio-agent/tests/built-bin.e2e.ts b/packages/ui/stdio-agent/tests/built-bin.e2e.ts index 7605b35bb7..d53296929d 100644 --- a/packages/ui/stdio-agent/tests/built-bin.e2e.ts +++ b/packages/ui/stdio-agent/tests/built-bin.e2e.ts @@ -34,7 +34,8 @@ const stdioBin = join(repoRoot, 'packages/ui/stdio-agent/lib/bin.js') // to the built `lib/` (package.json `main`), exactly as an installed dep would. const dshPackages = [ 'core/agent-core', 'core/agent', 'core/session', 'core/system-prompt', - 'core/tools', 'core/agent-loop', 'llm/llm', 'bash/bash', 'bash/bash-local', + 'core/tools', 'core/user-interaction', 'core/tool-ask-user', + 'core/agent-loop', 'llm/llm', 'bash/bash', 'bash/bash-local', 'bash/tool-bash', 'support/invariants', 'support/ui-stdio', 'session-persistence/session-persistence', 'session-persistence/session-persistence-jsonl', 'ui/stdio-agent', diff --git a/packages/ui/stdio-agent/tests/stdio-agent.spec.ts b/packages/ui/stdio-agent/tests/stdio-agent.spec.ts index f72de0a1da..c21b1c8812 100644 --- a/packages/ui/stdio-agent/tests/stdio-agent.spec.ts +++ b/packages/ui/stdio-agent/tests/stdio-agent.spec.ts @@ -33,6 +33,8 @@ describe('dsh-stdio-agent app', () => { expect(ctx.get('agents')).toBeDefined() expect(ctx.get('agentLoop')).toBeDefined() expect(ctx.get('sessionPersistence')).toBeDefined() + expect(ctx.get('userInteraction')).toBeDefined() + expect(ctx.get('tools')?.get('ask_user_question')).toBeDefined() // The pre-created `main` agent the UI drives. expect(ctx.get('agents')?.get(AgentId('main'))).toBeDefined() await ctx.fiber.dispose() diff --git a/packages/ui/stdio-agent/tsconfig.json b/packages/ui/stdio-agent/tsconfig.json index 58b492a549..6cb6130fb7 100644 --- a/packages/ui/stdio-agent/tsconfig.json +++ b/packages/ui/stdio-agent/tsconfig.json @@ -29,6 +29,12 @@ { "path": "../../core/agent-core" }, + { + "path": "../../core/user-interaction" + }, + { + "path": "../../core/tool-ask-user" + }, { "path": "../../session-persistence/session-persistence-jsonl" }, diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 55e565cad2..c6554ad952 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -221,6 +221,27 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/core/tool-ask-user: + devDependencies: + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../agent + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + '@deepseek-ai/dsh-system-prompt': + specifier: workspace:^ + version: link:../system-prompt + '@deepseek-ai/dsh-tools': + specifier: workspace:^ + version: link:../tools + '@deepseek-ai/dsh-user-interaction': + specifier: workspace:^ + version: link:../user-interaction + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/core/tools: devDependencies: '@deepseek-ai/dsh-agent': @@ -236,6 +257,15 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/core/user-interaction: + devDependencies: + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../agent + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/llm/llm: devDependencies: '@deepseek-ai/dsh-brand': @@ -578,6 +608,9 @@ importers: '@deepseek-ai/dsh-session': specifier: workspace:^ version: link:../../core/session + '@deepseek-ai/dsh-user-interaction': + specifier: workspace:^ + version: link:../../core/user-interaction cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -675,9 +708,15 @@ importers: '@deepseek-ai/dsh-session-persistence-jsonl': specifier: workspace:^ version: link:../../session-persistence/session-persistence-jsonl + '@deepseek-ai/dsh-tool-ask-user': + specifier: workspace:^ + version: link:../../core/tool-ask-user '@deepseek-ai/dsh-ui-stdio': specifier: workspace:^ version: link:../../support/ui-stdio + '@deepseek-ai/dsh-user-interaction': + specifier: workspace:^ + version: link:../../core/user-interaction cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@vendor+include)(@cordisjs/plugin-loader@vendor+loader) diff --git a/tsconfig.build.json b/tsconfig.build.json index 4c71d2f14e..bd6073825d 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -18,7 +18,9 @@ { "path": "./packages/session-persistence/session-persistence-sqlite" }, { "path": "./packages/core/system-prompt" }, { "path": "./packages/core/agent" }, + { "path": "./packages/core/user-interaction" }, { "path": "./packages/core/tools" }, + { "path": "./packages/core/tool-ask-user" }, { "path": "./packages/core/agent-loop" }, { "path": "./packages/core/agent-core" }, { "path": "./packages/bash/bash" }, diff --git a/tsconfig.json b/tsconfig.json index dcc23b2fbe..59c69f9684 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -29,7 +29,9 @@ { "path": "./packages/session-persistence/session-persistence-sqlite" }, { "path": "./packages/core/system-prompt" }, { "path": "./packages/core/agent" }, + { "path": "./packages/core/user-interaction" }, { "path": "./packages/core/tools" }, + { "path": "./packages/core/tool-ask-user" }, { "path": "./packages/core/agent-loop" }, { "path": "./packages/core/agent-core" }, { "path": "./packages/bash/bash" }, From 45be662e85f5059bdf463ecc043688a444827f9e Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Thu, 25 Jun 2026 23:35:13 +0800 Subject: [PATCH 002/232] Add skill discovery and loading --- docs/architecture.md | 5 +- docs/cordis-catalog/events-and-services.md | 17 +- docs/module-graph.md | 12 +- packages/README.md | 6 +- packages/core/README.md | 4 +- packages/core/agent-core/package.json | 4 + packages/core/agent-core/src/index.ts | 8 +- .../core/agent-core/tests/agent-core.spec.ts | 37 +- packages/core/agent-core/tsconfig.json | 6 + packages/core/agent-loop/README.md | 5 +- packages/core/agent-loop/src/index.ts | 17 +- packages/core/agent-loop/tests/loop.spec.ts | 15 + packages/core/skill/README.md | 41 ++ packages/core/skill/package.json | 37 ++ packages/core/skill/src/index.ts | 425 ++++++++++++++++++ packages/core/skill/tests/skill.spec.ts | 342 ++++++++++++++ packages/core/skill/tsconfig.json | 14 + packages/core/tool-skill/README.md | 15 + packages/core/tool-skill/package.json | 38 ++ packages/core/tool-skill/src/index.ts | 52 +++ .../core/tool-skill/tests/tool-skill.spec.ts | 86 ++++ packages/core/tool-skill/tsconfig.json | 16 + packages/ui/stdio-agent/README.md | 4 +- packages/ui/stdio-agent/src/index.ts | 7 +- .../ui/stdio-agent/tests/stdio-agent.spec.ts | 4 +- pnpm-lock.yaml | 40 ++ tsconfig.build.json | 2 + tsconfig.json | 2 + 28 files changed, 1234 insertions(+), 27 deletions(-) create mode 100644 packages/core/skill/README.md create mode 100644 packages/core/skill/package.json create mode 100644 packages/core/skill/src/index.ts create mode 100644 packages/core/skill/tests/skill.spec.ts create mode 100644 packages/core/skill/tsconfig.json create mode 100644 packages/core/tool-skill/README.md create mode 100644 packages/core/tool-skill/package.json create mode 100644 packages/core/tool-skill/src/index.ts create mode 100644 packages/core/tool-skill/tests/tool-skill.spec.ts create mode 100644 packages/core/tool-skill/tsconfig.json diff --git a/docs/architecture.md b/docs/architecture.md index 216ed949b6..d062b4b104 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -24,10 +24,12 @@ For a catalog of the **data structures** this architecture moves around — the │ @deepseek-ai/dsh-agent-loop (the ONE concrete plugin) │ │ @deepseek-ai/dsh-bash-local (bash impl) │ │ @deepseek-ai/dsh-tool-bash (bash tool schemas) │ +│ @deepseek-ai/dsh-tool-skill (skill loader tool) │ │ @deepseek-ai/dsh-session-persistence-jsonl (persistence impl)│ ├─────────────────────────────────────────────────────────────┤ │ @deepseek-ai/dsh-agent (vocabulary + registry) │ │ @deepseek-ai/dsh-tools (registry + exec waterfall)│ +│ @deepseek-ai/dsh-skill (skill discovery + listing)│ │ @deepseek-ai/dsh-system-prompt (assembly registry) │ │ @deepseek-ai/dsh-session (event-sourced log) │ │ @deepseek-ai/dsh-session-persistence (persistence seam) │ @@ -50,6 +52,7 @@ Dependency rule: **extension** plugins depend on interface packages, never on `d | `ctx.sessionPersistence` | `SessionPersistence` (abstract) | dsh-session-persistence | durable persistence seam: create/append/load/list sessions | | `ctx.systemPrompt` | `SystemPrompt` | dsh-system-prompt | ordered sections + tool schemas → `assemble()` | | `ctx.tools` | `ToolRegistry` | dsh-tools | tool definitions; `execute()` through waterfall | +| `ctx.skills` | `SkillService` | dsh-skill | discovers user/project/system skills and adds request-time skill guidance | | `ctx.agents` | `AgentRegistry` | dsh-agent | live `Agent` handles + the create/resume factory seam (returns an `AgentHandle` = `{ agent, dispose() }` for owned per-agent teardown) | | `ctx.agentLoop` | `AgentLoop` | dsh-agent-loop | creates `ReactLoopAgent`s and drives their loops | | `ctx.bash` | `BashExecutor` (abstract) | dsh-bash | bash execution seam: foreground runs + background tasks | @@ -202,7 +205,7 @@ Every MVP feature (including the TODO-marked ones), with the mechanism that impl | Plan mode | wrap `tools/execute` (deny writes) + `agent/request` (inject mode prompt) | | Sub-agents (spawn / fork / steer) | TODO seam on `AgentLoop.create()`; fork = seed Session with parent events; `steer()` on the child handle | | MCP | one plugin per server: discover tools → `ctx.tools.register()` | -| Skills | section + tool registration; `inject()` skill content on invocation | +| Skills | `dsh-skill` discovers `~/.dsh/skills`, `~/.agents/skills`, project `.dsh/skills`/`.agents/skills`, and system `~/.dsh/skills/.system`; `agent/request` appends the model-visible listing; `dsh-tool-skill` loads full skill content on demand | | Memory | section provider + tool | | Scheduled tasks (cron) | plugin registers model-callable scheduling tools; timer fires → `send(…, {source: {kind: 'cron', …}})` when idle / `inject()` notification when busy | | UI (GUI; CLI emits JSONL) | listen `agent/stream-chunk` + `session/event`; input → `send()` | diff --git a/docs/cordis-catalog/events-and-services.md b/docs/cordis-catalog/events-and-services.md index f424b8af09..84360b6140 100644 --- a/docs/cordis-catalog/events-and-services.md +++ b/docs/cordis-catalog/events-and-services.md @@ -301,7 +301,7 @@ Source: [`packages/core/tools/src/index.ts:43`](../../packages/core/tools/src/in ## Services -The 9 `ctx.` services the harness provides. An abstract seam (e.g. `ctx.bash`) is implemented by a separate package; the interface is what consumers code against. +The 10 `ctx.` services the harness provides. An abstract seam (e.g. `ctx.bash`) is implemented by a separate package; the interface is what consumers code against. ### `ctx.agentLoop` — `AgentLoop` @@ -310,12 +310,12 @@ The agent-loop plugin (`ctx.agentLoop`): creates ReactLoopAgents, runs their loo The loop itself is deliberately thin — every behavior beyond "call the model, run the tools, repeat" belongs to plugins listening on the event taxonomy declared in @deepseek-ai/dsh-agent. ```ts cordis-catalog -create(id: AgentId, options: AgentOptions = {}): ReactLoopAgent +create(id: AgentId, options: AgentOptions = {}, meta: Pick = {}): ReactLoopAgent createAgent(options: CreateAgentOptions): AgentHandle async resume(options: ResumeAgentOptions): Promise ``` -Source: [`packages/core/agent-loop/src/index.ts:63`](../../packages/core/agent-loop/src/index.ts) +Source: [`packages/core/agent-loop/src/index.ts:65`](../../packages/core/agent-loop/src/index.ts) ### `ctx.agents` — `AgentRegistry` @@ -414,6 +414,17 @@ list(): Session[] Source: [`packages/core/session/src/index.ts:229`](../../packages/core/session/src/index.ts) +### `ctx.skills` — `SkillService` + +```ts cordis-catalog +register(skill: SkillRegistration): () => void +async list(options: SkillLookupOptions = {}): Promise +async get(name: string, options: SkillLookupOptions = {}): Promise +async renderModelListing(options: SkillLookupOptions = {}): Promise +``` + +Source: [`packages/core/skill/src/index.ts:106`](../../packages/core/skill/src/index.ts) + ### `ctx.subagents` — `SubagentService` The `subagents` service: a registry of named SubagentProviders and a capability-checked start surface. diff --git a/docs/module-graph.md b/docs/module-graph.md index 93ad58725d..3dfe4b8a08 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -28,6 +28,8 @@ graph TD session-persistence-jsonl --> session-persistence session-persistence-sqlite --> session session-persistence-sqlite --> session-persistence + skill --> agent + skill --> llm tools --> agent tools --> llm tools --> system-prompt @@ -52,13 +54,19 @@ graph TD tool-bash --> bash tool-bash --> llm tool-bash --> tools + tool-skill --> agent + tool-skill --> llm + tool-skill --> skill + tool-skill --> tools agent-core --> agent agent-core --> agent-loop agent-core --> invariants agent-core --> llm agent-core --> session + agent-core --> skill agent-core --> system-prompt agent-core --> tool-bash + agent-core --> tool-skill agent-core --> tools subagent-acp --> agent subagent-acp --> llm @@ -106,13 +114,15 @@ graph TD | `invariants` | `agent`, `llm`, `session` | | `session-persistence-jsonl` | `session`, `session-persistence` | | `session-persistence-sqlite` | `session`, `session-persistence` | +| `skill` | `agent`, `llm` | | `tools` | `agent`, `llm`, `system-prompt` | | `ui-stdio` | `agent`, `llm`, `session` | | `acp` | `agent`, `llm`, `session`, `session-persistence`, `tools` | | `agent-loop` | `agent`, `llm`, `session`, `session-persistence`, `system-prompt`, `tools` | | `subagent` | `agent`, `llm`, `tools` | | `tool-bash` | `agent`, `bash`, `llm`, `tools` | -| `agent-core` | `agent`, `agent-loop`, `invariants`, `llm`, `session`, `system-prompt`, `tool-bash`, `tools` | +| `tool-skill` | `agent`, `llm`, `skill`, `tools` | +| `agent-core` | `agent`, `agent-loop`, `invariants`, `llm`, `session`, `skill`, `system-prompt`, `tool-bash`, `tool-skill`, `tools` | | `subagent-acp` | `agent`, `llm`, `subagent` | | `subagent-inprocess` | `agent`, `llm`, `session`, `subagent` | | `subagent-mock` | `agent`, `llm`, `subagent` | diff --git a/packages/README.md b/packages/README.md index c24e95838f..a76f7d5cfa 100644 --- a/packages/README.md +++ b/packages/README.md @@ -29,6 +29,8 @@ dsh-session ← dsh-llm, dsh-brand dsh-system-prompt ← dsh-llm dsh-agent ← dsh-llm, dsh-session, dsh-brand dsh-tools ← dsh-llm, dsh-system-prompt, dsh-agent +dsh-skill ← dsh-llm, dsh-agent +dsh-tool-skill ← dsh-skill, dsh-tools, dsh-agent, dsh-llm dsh-bash-local ← dsh-bash (BashExecutor impl) dsh-tool-bash ← dsh-bash, dsh-tools (bash tool schemas) dsh-llm-deepseek ← dsh-llm (DeepSeek adapter) @@ -44,7 +46,7 @@ dsh-subagent-spawn ← dsh-subagent, dsh-agent, dsh-session, dsh-llm (in-proces dsh-subagent-fork ← dsh-subagent-spawn, dsh-agent, dsh-session (in-process child seeded from parent log) dsh-subagent-acp ← dsh-subagent, dsh-agent, dsh-llm, @agentclientprotocol/sdk (out-of-process child over ACP) dsh-tool-subagent ← dsh-subagent, dsh-tools, dsh-agent (model-facing delegation tool) -dsh-agent-core ← timer, dsh-llm, dsh-session, dsh-system-prompt, dsh-tools, dsh-agent, dsh-invariants, dsh-tool-bash, dsh-agent-loop (the providerless spine, as one bundle plugin) +dsh-agent-core ← timer, dsh-llm, dsh-session, dsh-system-prompt, dsh-tools, dsh-skill, dsh-agent, dsh-invariants, dsh-tool-bash, dsh-tool-skill, dsh-agent-loop (the providerless spine, as one bundle plugin) dsh-stdio-agent ← dsh-agent-core, dsh-ui-stdio, dsh-session-persistence-jsonl, dsh-agent, dsh-session (stdio chat APP + bin) dsh-acp-agent ← dsh-agent-core, dsh-acp, dsh-session-persistence-jsonl (ACP server APP + bin) ``` @@ -59,6 +61,8 @@ The rule: **extension** plugins depend on interfaces, never on the concrete loop | `session/` | `core` | Event-sourced session log + in-memory store | `ctx.sessions` | | `system-prompt/` | `core` | Prompt-section + tool-schema assembly registry | `ctx.systemPrompt` | | `tools/` | `core` | Tool registry + `tools/execute` waterfall | `ctx.tools` | +| `skill/` | `core` | Skill discovery + request-time model listing | `ctx.skills` | +| `tool-skill/` | `core` | Model-facing `skill` loader tool | (registers on `ctx.tools`) | | `agent/` | `core` | Agent interface, registry, `agent/*` event vocabulary | `ctx.agents` | | `agent-loop/` | `core` | THE concrete loop plugin: `ReactLoopAgent` + the loop driver | `ctx.agentLoop` | | `agent-core/` | `core` | Bundle plugin: the providerless/executor-less/UI-less spine as code (forwards `agent-loop`'s `agents`) | (loads the spine) | diff --git a/packages/core/README.md b/packages/core/README.md index 8d8805471a..1ac57d868b 100644 --- a/packages/core/README.md +++ b/packages/core/README.md @@ -7,10 +7,12 @@ The packages every harness build is assembled from: the session log, the system- | `session/` | Event-sourced session log + in-memory store | `ctx.sessions` | | `system-prompt/` | Prompt-section + tool-schema assembly registry | `ctx.systemPrompt` | | `tools/` | Tool registry + `tools/execute` waterfall | `ctx.tools` | +| `skill/` | Agent skill discovery + request-time skill listing | `ctx.skills` | +| `tool-skill/` | Model-facing `skill` loader tool | (registers on `ctx.tools`) | | `agent/` | Agent interface, registry, `agent/*` event vocabulary | `ctx.agents` | | `agent-loop/` | The concrete loop plugin: `ReactLoopAgent` + the loop driver | `ctx.agentLoop` | | `agent-core/` | Bundle plugin: the providerless/executor-less/UI-less spine as code | (loads the spine) | `agent-loop` is the one concrete implementation of the `agent` seam and lives here because it is the harness's default product loop; everything else in `core/` is interface/vocabulary. Plugins depend on the `agent` vocabulary, never on `agent-loop` directly, so the loop stays swappable. -`agent-core` is the composition counterpart: one bundle plugin that loads the whole providerless spine (`timer` + `llm` + sessions + system-prompt + tools + agents + invariants + `tool-bash` + `agent-loop`) and forwards `agent-loop`'s `agents` list as its own config. App packages (`ui/stdio-agent`, `ui/acp-agent`) consume it and add only a front door; a leaf adds only the swappable backends. It lives in `core/` because it composes exclusively `core/` + interface packages and ships no provider, executor, or UI of its own. +`agent-core` is the composition counterpart: one bundle plugin that loads the whole providerless spine (`timer` + `llm` + sessions + system-prompt + tools + skills + agents + invariants + `tool-bash` + `tool-skill` + `agent-loop`) and forwards `agent-loop`'s `agents` list as its own config. App packages (`ui/stdio-agent`, `ui/acp-agent`) consume it and add only a front door; a leaf adds only the swappable backends. It lives in `core/` because it composes exclusively `core/` + interface packages and ships no provider, executor, or UI of its own. diff --git a/packages/core/agent-core/package.json b/packages/core/agent-core/package.json index a70ee30e71..2d01ec5900 100644 --- a/packages/core/agent-core/package.json +++ b/packages/core/agent-core/package.json @@ -28,8 +28,10 @@ "@deepseek-ai/dsh-invariants": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-session": "^0.0.1", + "@deepseek-ai/dsh-skill": "^0.0.1", "@deepseek-ai/dsh-system-prompt": "^0.0.1", "@deepseek-ai/dsh-tool-bash": "^0.0.1", + "@deepseek-ai/dsh-tool-skill": "^0.0.1", "@deepseek-ai/dsh-tools": "^0.0.1", "cordis": "^4.0.0-rc.6" }, @@ -40,8 +42,10 @@ "@deepseek-ai/dsh-invariants": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", + "@deepseek-ai/dsh-skill": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "@deepseek-ai/dsh-tool-bash": "workspace:^", + "@deepseek-ai/dsh-tool-skill": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", "cordis": "^4.0.0-rc.6" } diff --git a/packages/core/agent-core/src/index.ts b/packages/core/agent-core/src/index.ts index ad3f5d8c46..47617b1308 100644 --- a/packages/core/agent-core/src/index.ts +++ b/packages/core/agent-core/src/index.ts @@ -3,8 +3,8 @@ * * Loads the fixed set of services every harness agent needs — `timer`, the LLM * service, the session store, system-prompt assembly, the tool registry, the - * agent registry, the dev-mode invariants, the model-facing `bash` tool - * schemas, and the concrete `agent-loop` — and forwards the loop's `agents` + * skill registry, the agent registry, the dev-mode invariants, the model-facing + * `bash` and `skill` tool schemas, and the concrete `agent-loop` — and forwards the loop's `agents` * list as its OWN config (default `[]`), so each app supplies its own * pre-created agents. * @@ -48,9 +48,11 @@ import LlmService from '@deepseek-ai/dsh-llm' import SessionStore from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' +import SkillService from '@deepseek-ai/dsh-skill' import AgentRegistry from '@deepseek-ai/dsh-agent' import * as invariants from '@deepseek-ai/dsh-invariants' import * as toolBash from '@deepseek-ai/dsh-tool-bash' +import * as toolSkill from '@deepseek-ai/dsh-tool-skill' import AgentLoop, { type Config as AgentLoopConfig } from '@deepseek-ai/dsh-agent-loop' export const name = 'agent-core' @@ -81,8 +83,10 @@ export function apply(ctx: Context, config: Config): void { ctx.plugin(SessionStore) ctx.plugin(SystemPrompt) ctx.plugin(ToolRegistry) + ctx.plugin(SkillService) ctx.plugin(AgentRegistry) ctx.plugin(invariants) ctx.plugin(toolBash) + ctx.plugin(toolSkill) ctx.plugin(AgentLoop, { agents: config.agents }) } diff --git a/packages/core/agent-core/tests/agent-core.spec.ts b/packages/core/agent-core/tests/agent-core.spec.ts index 67f5d88532..4a8954f9c6 100644 --- a/packages/core/agent-core/tests/agent-core.spec.ts +++ b/packages/core/agent-core/tests/agent-core.spec.ts @@ -1,4 +1,7 @@ import { describe, expect, it } from 'vitest' +import { mkdtemp } from 'node:fs/promises' +import { join } from 'node:path' +import { tmpdir } from 'node:os' import { Context } from 'cordis' import Loader from '@cordisjs/plugin-loader' import * as agentCore from '../src/index.ts' @@ -15,12 +18,22 @@ import { AgentId } from '@deepseek-ai/dsh-agent' * bin smokes; here we assert the composition + config forwarding. */ async function mount(config?: agentCore.Config): Promise { + const oldDshHome = process.env.DSH_HOME + process.env.DSH_HOME = await mkdtemp(join(tmpdir(), 'dsh-agent-core-home-')) const ctx = new Context() - await ctx.plugin(agentCore, config) - // The bundle mounts its children inside apply() (not awaited there); let their - // fibers settle so the spine services and any pre-created agent are ready. - await new Promise(resolve => setTimeout(resolve, 50)) - return ctx + try { + await ctx.plugin(agentCore, config) + // The bundle mounts its children inside apply() (not awaited there); let their + // fibers settle so the spine services and any pre-created agent are ready. + await new Promise(resolve => setTimeout(resolve, 50)) + return ctx + } finally { + if (oldDshHome === undefined) { + delete process.env.DSH_HOME + } else { + process.env.DSH_HOME = oldDshHome + } + } } describe('dsh-agent-core bundle', () => { @@ -32,11 +45,25 @@ describe('dsh-agent-core bundle', () => { expect(ctx.get('sessions')).toBeDefined() expect(ctx.get('systemPrompt')).toBeDefined() expect(ctx.get('tools')).toBeDefined() + expect(ctx.get('skills')).toBeDefined() expect(ctx.get('agents')).toBeDefined() expect(ctx.get('agentLoop')).toBeDefined() await ctx.fiber.dispose() }) + it('includes the default skill system and skill tool', async () => { + const ctx = await mount() + + expect(ctx.skills).toBeDefined() + expect(ctx.tools.schemas().map(tool => tool.name)).toContain('skill') + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(expect.arrayContaining([ + 'dsh-plugin-creator', + 'dsh-skill-creator', + ])) + + await ctx.fiber.dispose() + }) + it('defaults the agents list to empty (no pre-created agents)', async () => { const ctx = await mount() expect(ctx.get('agents')?.get(AgentId('main'))).toBeUndefined() diff --git a/packages/core/agent-core/tsconfig.json b/packages/core/agent-core/tsconfig.json index 83bf06c586..6b53f62024 100644 --- a/packages/core/agent-core/tsconfig.json +++ b/packages/core/agent-core/tsconfig.json @@ -26,6 +26,12 @@ { "path": "../../core/tools" }, + { + "path": "../../core/skill" + }, + { + "path": "../../core/tool-skill" + }, { "path": "../../core/agent" }, diff --git a/packages/core/agent-loop/README.md b/packages/core/agent-loop/README.md index 4892b357bf..a477921c98 100644 --- a/packages/core/agent-loop/README.md +++ b/packages/core/agent-loop/README.md @@ -8,7 +8,7 @@ This is the only package in the harness that contains concrete loop logic. Every ### Public API -- `ctx.agentLoop.create(id: string, options?: AgentOptions): ReactLoopAgent` — config-driven create: an agent on a fresh per-run session id `${id}-session-` (no cwd). Used for `cordis.yml`-configured agents. The per-run uuid avoids colliding with the on-disk log a prior run materialized once a durable persistence backend is loaded; each run is a new session (a deliberate demo simplification — a real resume-or-create policy is a TODO). Disposed with the calling fiber. +- `ctx.agentLoop.create(id: string, options?: AgentOptions, meta?: { cwd?: string }): ReactLoopAgent` — config-driven create: an agent on a fresh per-run session id `${id}-session-` with optional session metadata. Used for `cordis.yml`-configured agents. The per-run uuid avoids colliding with the on-disk log a prior run materialized once a durable persistence backend is loaded; each run is a new session (a deliberate demo simplification — a real resume-or-create policy is a TODO). Disposed with the calling fiber. `AgentLoop` also implements the `AgentFactory` seam and registers itself via `ctx.agents.setFactory(this)`, so plugins create/resume agents through `ctx.agents` (the interface): @@ -29,11 +29,12 @@ interface Config { id: string // required model?: string systemPrompt?: string + cwd?: string // optional workspace cwd for the fresh session }> } ``` -Agents listed in config are auto-created at startup. +Agents listed in config are auto-created at startup. `cwd` applies only to fresh config-created sessions; `resumeSessionId` keeps the persisted session header. ### Classes diff --git a/packages/core/agent-loop/src/index.ts b/packages/core/agent-loop/src/index.ts index ab95ea5aac..73811b192d 100644 --- a/packages/core/agent-loop/src/index.ts +++ b/packages/core/agent-loop/src/index.ts @@ -12,7 +12,7 @@ import { randomUUID } from 'node:crypto' import z from 'schemastery' import type { AgentFactory, AgentHandle, AgentId, AgentOptions, CreateAgentOptions, ResumeAgentOptions } from '@deepseek-ai/dsh-agent' import type {} from '@deepseek-ai/dsh-llm' -import { SessionId } from '@deepseek-ai/dsh-session' +import { SessionId, type SessionHeader } from '@deepseek-ai/dsh-session' import type { Session } from '@deepseek-ai/dsh-session' import type {} from '@deepseek-ai/dsh-system-prompt' import type {} from '@deepseek-ai/dsh-tools' @@ -33,6 +33,8 @@ export interface Config { /** Agents created from configuration at startup. */ agents: (AgentOptions & { id: AgentId + /** Optional workspace cwd for the config-created fresh session. */ + cwd?: string /** * If set, the config agent RESUMES this persisted session id instead of * starting a fresh `${id}-session-`. Sourced from an env var in @@ -73,6 +75,7 @@ export class AgentLoop extends Service implements AgentFactory { id: z.string().required(), model: z.string(), systemPrompt: z.string(), + cwd: z.string(), resumeSessionId: z.string(), })).default([]), }) as unknown as z @@ -82,7 +85,7 @@ export class AgentLoop extends Service implements AgentFactory { // Provide the agent-creation factory to the registry (effect-scoped: the // slot is cleared on dispose). ctx.effect(() => this.ctx.agents.setFactory(this), 'agentLoop.setFactory()') - for (const { id, resumeSessionId, ...options } of config.agents) { + for (const { id, cwd, resumeSessionId, ...options } of config.agents) { if (resumeSessionId !== undefined && resumeSessionId !== '') { // Resume a prior session instead of starting fresh. resume() needs // `ctx.sessionPersistence`, which may load AFTER this plugin (cordis.yml @@ -101,15 +104,15 @@ export class AgentLoop extends Service implements AgentFactory { return () => void fiber.dispose() }, `agentLoop.resume(${id})`) } else { - this.create(id, options) + this.create(id, options, cwd === undefined ? {} : { cwd }) } } } /** * Config-driven create: an agent on a FRESH, non-colliding session id per run - * (`${id}-session-`, no cwd). Used for `cordis.yml`-configured agents - * and as the shared core for the programmatic factory {@link createAgent}. + * (`${id}-session-`). Used for `cordis.yml`-configured agents and as + * the shared core for the programmatic factory {@link createAgent}. * * Why a per-run id, not a fixed `${id}-session`: once a durable persistence * backend is loaded, a fixed id collides on the second run — the backend @@ -122,13 +125,13 @@ export class AgentLoop extends Service implements AgentFactory { * else start fresh) or an explicit caller-chosen session id — revisit when the * UI/ACP path owns session selection. */ - create(id: AgentId, options: AgentOptions = {}): ReactLoopAgent { + create(id: AgentId, options: AgentOptions = {}, meta: Pick = {}): ReactLoopAgent { this.assertAgentIdFree(id) // Config/programmatic path: prepare the session and let start() fold its // lifecycle into the agent's composite effect (so a fiber unload tears the // session + agent down as one ordered chain, capturing the loop's closing // flush). The whole effect is owned by THIS fiber; no AgentHandle is needed. - const session = this.ctx.sessions.prepare(SessionId(`${id}-session-${randomUUID()}`), { meta: {} }) + const session = this.ctx.sessions.prepare(SessionId(`${id}-session-${randomUUID()}`), { meta }) const { agent } = this.start(id, options, session) return agent } diff --git a/packages/core/agent-loop/tests/loop.spec.ts b/packages/core/agent-loop/tests/loop.spec.ts index d018eff7a2..fdb6672bac 100644 --- a/packages/core/agent-loop/tests/loop.spec.ts +++ b/packages/core/agent-loop/tests/loop.spec.ts @@ -677,6 +677,21 @@ describe('agent loop', () => { expect(adapter.requests).toHaveLength(1) }) + it('attaches config agent cwd to the fresh session header', async () => { + const ctx = new Context() + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(AgentLoop, { + agents: [{ id: AgentId('config-agent'), model: 'mock', systemPrompt: '', cwd: '/work/project' }], + }) + + const agent = ctx.agents.get(AgentId('config-agent'))! as ReactLoopAgent + expect(agent.session.header.cwd).toBe('/work/project') + }) + it('replays a session log into an identical derived history', async () => { const adapter = new MockAdapter([ toolCallResponse('c1', 'echo', { text: 'x' }), diff --git a/packages/core/skill/README.md b/packages/core/skill/README.md new file mode 100644 index 0000000000..5fcb144adc --- /dev/null +++ b/packages/core/skill/README.md @@ -0,0 +1,41 @@ +# @deepseek-ai/dsh-skill + +Agent skill discovery and model-facing skill guidance. + +## Service: `SkillService` (ctx key: `skills`) + +### Public API + +- `ctx.skills.list({ cwd? })` Returns model-invocable skill summaries for the current workspace. +- `ctx.skills.get(name, { cwd? })` Returns the full skill, including disabled-for-model skills. +- `ctx.skills.register(skill): () => void` Registers a runtime skill, disposed with the calling fiber. + +### Discovery + +Default roots are resolved in this conflict priority order: + +| Source | Path | +|---|---| +| Project DSH | `/.dsh/skills` | +| Project agents | `/.agents/skills` | +| Runtime | `ctx.skills.register(...)` | +| User DSH | `~/.dsh/skills` | +| User agents | `~/.agents/skills` | +| Extra | `Config.extraRoots` | +| System | `~/.dsh/skills/.system` | + +The project root is the nearest ancestor containing `.git`; without one, the current cwd is used. The user DSH root skips `.system` during normal user scanning so system skills are read exactly once. Same-name skills keep the highest-priority copy, then model-visible summaries are sorted by skill name for stable prompts and provider prefix-cache friendliness. + +Discovery is memoized per resolved root set and runtime-skill revision. Runtime `register()` and disposer calls invalidate the cache; disk-only changes are picked up on the next invalidation or process restart. + +## Skill Format + +Skills can be single-level directory bundles (`/SKILL.md`) or flat Markdown files (`.md`). Nested `**/SKILL.md` discovery is intentionally not part of v1. Frontmatter requires `name` and `description`; `whenToUse`, `disableModelInvocation`, and `metadata` are optional. Names must be kebab-case. + +## Prompt Integration + +The service listens on `agent/request` and appends a short `## Skills` listing to the request system prompt for the calling agent's cwd. The listing contains only stable routing metadata (`name`, `source`, `description`, and optional `whenToUse`), not skill bodies or local absolute paths. `description` and `whenToUse` are whitespace-normalized and capped in the listing so one pathological skill cannot bloat every model request. Models load full instructions through the `skill` tool. + +## System Skills + +On startup, the service ensures bundled system skills exist under `~/.dsh/skills/.system` unless `installSystemSkills: false` is configured. Project, runtime, user, and extra-root skills can override system skills by name. diff --git a/packages/core/skill/package.json b/packages/core/skill/package.json new file mode 100644 index 0000000000..f16ef58135 --- /dev/null +++ b/packages/core/skill/package.json @@ -0,0 +1,37 @@ +{ + "name": "@deepseek-ai/dsh-skill", + "description": "Agent skill discovery and prompt listing for the DeepSeek Harness", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-agent": "^0.0.1", + "@deepseek-ai/dsh-llm": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "yaml": "^2.4.2" + }, + "devDependencies": { + "@deepseek-ai/dsh-agent": "workspace:^", + "@deepseek-ai/dsh-llm": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/core/skill/src/index.ts b/packages/core/skill/src/index.ts new file mode 100644 index 0000000000..631d84a415 --- /dev/null +++ b/packages/core/skill/src/index.ts @@ -0,0 +1,425 @@ +/** + * Agent skill discovery and prompt listing. + * + * Skills are progressive-disclosure instructions: the model sees only a short + * listing in the system prompt, then calls the `skill` tool to load the full + * `SKILL.md` body when a task matches. + * + * @module @deepseek-ai/dsh-skill + */ + +import { access, mkdir, readdir, readFile, writeFile } from 'node:fs/promises' +import { dirname, join, resolve } from 'node:path' +import { homedir } from 'node:os' +import { Context, Service } from 'cordis' +import { parse as parseYaml } from 'yaml' +import type { GenerateOptions } from '@deepseek-ai/dsh-llm' +import type {} from '@deepseek-ai/dsh-agent' + +const SKILL_NAME = /^[a-z0-9]+(?:-[a-z0-9]+)*$/ +const MAX_PROMPT_FIELD_LENGTH = 500 + +export function isSkillName(name: string): boolean { + return SKILL_NAME.test(name) +} + +export type SkillSource = 'project-dsh' | 'project-agents' | 'runtime' | 'user-dsh' | 'user-agents' | 'extra' | 'system' + +export interface SkillSummary { + name: string + description: string + whenToUse?: string + disableModelInvocation?: boolean + directory: string + source: SkillSource +} + +export interface SkillDefinition extends SkillSummary { + content: string + path?: string + metadata?: Record +} + +export type SkillRegistration = Omit & { + disableModelInvocation?: boolean +} + +export interface SkillLookupOptions { + cwd?: string | undefined +} + +export interface Config { + /** DeepSeek Harness config root. Defaults to `$DSH_HOME` or `~/.dsh`. */ + dshHome?: string + /** Shared agent config root. Defaults to `~/.agents`. */ + agentsHome?: string + /** Extra skill roots, scanned after user roots and before system skills. */ + extraRoots?: string[] + /** Ensure bundled system skills exist under `/skills/.system`. Defaults true. */ + installSystemSkills?: boolean +} + +declare module 'cordis' { + interface Context { + skills: SkillService + } +} + +interface SkillRoot { + path: string + source: SkillSource + skipSystem?: boolean +} + +const SYSTEM_SKILLS: SkillDefinition[] = [ + { + name: 'dsh-plugin-creator', + description: 'Create or update DeepSeek Harness Cordis plugins and packages.', + directory: 'system://dsh-plugin-creator', + source: 'system', + content: [ + 'Use this skill to create DeepSeek Harness plugins that fit the repository architecture.', + '', + 'Prefer Cordis services, plugin packages, effect-scoped registrations, and existing extension seams over loop changes.', + 'When adding a swappable capability, design the interface/implementation/consumer split first.', + 'Every registry or registration path needs disposal/HMR coverage.', + 'Update package docs, architecture docs, package graph references, and generated catalogs when public surfaces change.', + ].join('\n'), + }, + { + name: 'dsh-skill-creator', + description: 'Create or update DeepSeek Harness SKILL.md instructions.', + whenToUse: 'Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.', + directory: 'system://dsh-skill-creator', + source: 'system', + content: [ + 'Use this skill to write focused DeepSeek Harness skills.', + '', + 'A skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter.', + 'Frontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it.', + 'Use optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills.', + 'Keep the body procedural, evidence-oriented, and scoped to the workflow the skill owns.', + ].join('\n'), + }, +] + +export class SkillService extends Service { + private readonly dshHome: string + private readonly agentsHome: string + private readonly extraRoots: string[] + private readonly installSystemSkills: boolean + private readonly runtime = new Map() + private readonly collectCache = new Map>() + private runtimeRevision = 0 + private systemReady: Promise | undefined + + constructor(ctx: Context, config: Config = {}) { + super(ctx, 'skills') + this.dshHome = resolve(config.dshHome ?? process.env.DSH_HOME ?? join(homedir(), '.dsh')) + this.agentsHome = resolve(config.agentsHome ?? join(homedir(), '.agents')) + this.extraRoots = (config.extraRoots ?? []).map(root => resolve(root)) + this.installSystemSkills = config.installSystemSkills ?? true + if (this.installSystemSkills) { + const systemRoot = join(this.dshHome, 'skills/.system') + this.systemReady = writeSystemSkills(systemRoot, this.ctx).catch((error: unknown) => { + this.ctx.logger.warn(`failed to install bundled system skills under ${systemRoot}: ${errorMessage(error)}`) + }) + } + + ctx.on('agent/request', async (agent, _turn, _step, _request, next) => { + const listing = await this.renderModelListing({ cwd: agent.session.header.cwd }) + const result = await next() + if (listing.length > 0) appendSystem(result, listing) + return result + }) + } + + register(skill: SkillRegistration): () => void { + const normalized = normalizeSkill(skill) + const dispose = this.ctx.effect(function* (this: SkillService) { + this.runtime.set(normalized.name, normalized) + this.invalidateCache() + yield () => { + this.runtime.delete(normalized.name) + this.invalidateCache() + } + }.bind(this), 'skills.register()') + return () => void dispose() + } + + async list(options: SkillLookupOptions = {}): Promise { + return (await this.collect(options)) + .filter(skill => skill.disableModelInvocation !== true) + .map(toSummary) + .sort(compareSummary) + } + + async get(name: string, options: SkillLookupOptions = {}): Promise { + if (!isSkillName(name)) return undefined + return (await this.collect(options)).find(skill => skill.name === name) + } + + async renderModelListing(options: SkillLookupOptions = {}): Promise { + const skills = await this.list(options) + if (skills.length === 0) return '' + const entries = skills.map((skill) => { + const lines = [ + ``, + `description: ${promptLine(skill.description)}`, + ...skill.whenToUse ? [`whenToUse: ${promptLine(skill.whenToUse)}`] : [], + '', + ] + return lines.join('\n') + }).join('\n') + return [ + '## Skills', + 'Available skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.', + '', + entries, + '', + ].join('\n') + } + + private async collect(options: SkillLookupOptions): Promise { + await this.ensureSystemSkills() + const roots = await this.roots(options.cwd) + const key = collectCacheKey(roots, this.runtimeRevision) + const cached = this.collectCache.get(key) + if (cached !== undefined) return cached + + const collected = this.collectFresh(roots) + this.collectCache.set(key, collected) + return collected + } + + private async collectFresh(roots: { project: SkillRoot[]; shared: SkillRoot[] }): Promise { + const seen = new Set() + const result: SkillDefinition[] = [] + + const add = (skill: SkillDefinition): void => { + if (seen.has(skill.name)) { + this.ctx.logger.warn(`skill "${skill.name}" from ${skill.directory} ignored because a higher-priority skill already exists`) + return + } + seen.add(skill.name) + result.push(skill) + } + + for (const root of roots.project) { + for (const skill of await discoverRoot(root, this.ctx)) add(skill) + } + for (const skill of [...this.runtime.values()].sort((a, b) => a.name.localeCompare(b.name))) add(skill) + for (const root of roots.shared) { + for (const skill of await discoverRoot(root, this.ctx)) add(skill) + } + return result + } + + private async roots(cwd: string | undefined): Promise<{ project: SkillRoot[]; shared: SkillRoot[] }> { + const project: SkillRoot[] = [] + if (cwd !== undefined) { + const projectRoot = await findProjectRoot(resolve(cwd)) + project.push( + { path: join(projectRoot, '.dsh/skills'), source: 'project-dsh' }, + { path: join(projectRoot, '.agents/skills'), source: 'project-agents' }, + ) + } + const shared: SkillRoot[] = [ + { path: join(this.dshHome, 'skills'), source: 'user-dsh', skipSystem: true }, + { path: join(this.agentsHome, 'skills'), source: 'user-agents' }, + ...this.extraRoots.map(path => ({ path, source: 'extra' as const })), + { path: join(this.dshHome, 'skills/.system'), source: 'system' }, + ] + return { project, shared } + } + + private ensureSystemSkills(): Promise { + return this.systemReady ?? Promise.resolve() + } + + private invalidateCache(): void { + this.runtimeRevision += 1 + this.collectCache.clear() + } +} + +async function writeSystemSkills(systemRoot: string, ctx: Context): Promise { + await mkdir(systemRoot, { recursive: true }) + await Promise.all(SYSTEM_SKILLS.map(async (skill) => { + const dir = join(systemRoot, skill.name) + const file = join(dir, 'SKILL.md') + try { + await access(file) + return + } catch { + // Expected first-run path: the bundled system skill has not been installed. + } + await mkdir(dir, { recursive: true }) + await writeFile(file, renderSkillFile(skill)) + ctx.logger.debug(`installed system skill ${skill.name} at ${file}`) + })) +} + +function renderSkillFile(skill: SkillDefinition): string { + const frontmatter = [ + '---', + `name: ${skill.name}`, + `description: ${skill.description}`, + ...skill.whenToUse ? [`whenToUse: ${skill.whenToUse}`] : [], + '---', + '', + ] + return `${frontmatter.join('\n')}${skill.content}\n` +} + +async function discoverRoot(root: SkillRoot, ctx: Context): Promise { + let entries + try { + entries = await readdir(root.path, { withFileTypes: true, encoding: 'utf8' }) + } catch { + return [] + } + + const skills: SkillDefinition[] = [] + for (const entry of entries.sort((a, b) => a.name.localeCompare(b.name))) { + if (root.skipSystem && entry.name === '.system') continue + const fullPath = join(root.path, entry.name) + const parsed = entry.isDirectory() + ? await parseSkillFile(join(fullPath, 'SKILL.md'), fullPath, root.source, ctx) + : entry.isFile() && entry.name.endsWith('.md') + ? await parseSkillFile(fullPath, root.path, root.source, ctx) + : undefined + if (parsed) skills.push(parsed) + } + return skills +} + +async function parseSkillFile(path: string, directory: string, source: SkillSource, ctx: Context): Promise { + let raw: string + try { + raw = await readFile(path, 'utf8') + } catch { + return undefined + } + const parsed = parseFrontmatter(raw) + if (!parsed) { + ctx.logger.warn(`skill file ${path} ignored: missing YAML frontmatter`) + return undefined + } + const name = stringField(parsed.data, 'name') + const description = stringField(parsed.data, 'description') + if (name === undefined || description === undefined) { + ctx.logger.warn(`skill file ${path} ignored: frontmatter requires name and description`) + return undefined + } + if (!isSkillName(name)) { + ctx.logger.warn(`skill file ${path} ignored: invalid skill name "${name}"`) + return undefined + } + return { + name, + description, + ...optionalString(parsed.data, 'whenToUse'), + ...optionalBoolean(parsed.data, 'disableModelInvocation'), + ...optionalMetadata(parsed.data), + directory, + path, + source, + content: parsed.body.trim(), + } +} + +function parseFrontmatter(raw: string): { data: Record; body: string } | undefined { + if (!raw.startsWith('---\n')) return undefined + const end = raw.indexOf('\n---', 4) + if (end < 0) return undefined + const yaml = raw.slice(4, end) + const bodyStart = raw.indexOf('\n', end + 4) + const parsed = parseYaml(yaml) as unknown + if (typeof parsed !== 'object' || parsed === null || Array.isArray(parsed)) return undefined + return { data: parsed as Record, body: bodyStart < 0 ? '' : raw.slice(bodyStart + 1) } +} + +async function findProjectRoot(cwd: string): Promise { + let current = cwd + while (true) { + try { + await access(join(current, '.git')) + return current + } catch { + // Continue walking upward until a git root is found. + } + const parent = dirname(current) + if (parent === current) return cwd + current = parent + } +} + +function normalizeSkill(skill: SkillRegistration): SkillDefinition { + if (!SKILL_NAME.test(skill.name)) throw new Error(`invalid skill name "${skill.name}"`) + if (skill.description.length === 0) throw new Error(`skill "${skill.name}" requires a description`) + return { ...skill, source: skill.source } +} + +function toSummary(skill: SkillDefinition): SkillSummary { + const { name, description, whenToUse, disableModelInvocation, directory, source } = skill + return { + name, + description, + ...whenToUse !== undefined ? { whenToUse } : {}, + ...disableModelInvocation !== undefined ? { disableModelInvocation } : {}, + directory, + source, + } +} + +function compareSummary(left: SkillSummary, right: SkillSummary): number { + return left.name.localeCompare(right.name) +} + +function promptLine(value: string): string { + const normalized = value.replaceAll(/\s+/g, ' ').trim() + if (normalized.length <= MAX_PROMPT_FIELD_LENGTH) return normalized + return `${normalized.slice(0, MAX_PROMPT_FIELD_LENGTH - 3)}...` +} + +function stringField(data: Record, key: string): string | undefined { + const value = data[key] + return typeof value === 'string' && value.length > 0 ? value : undefined +} + +function optionalString(data: Record, key: string): { [K in typeof key]?: string } { + const value = data[key] + return typeof value === 'string' && value.length > 0 ? { [key]: value } : {} +} + +function optionalBoolean(data: Record, key: string): { [K in typeof key]?: boolean } { + const value = data[key] + return typeof value === 'boolean' ? { [key]: value } : {} +} + +function optionalMetadata(data: Record): { metadata?: Record } { + const value = data.metadata + if (typeof value === 'object' && value !== null && !Array.isArray(value)) { + return { metadata: value as Record } + } + return {} +} + +function escapeAttr(value: string): string { + return value.replaceAll('&', '&').replaceAll('"', '"').replaceAll('<', '<') +} + +function collectCacheKey(roots: { project: SkillRoot[]; shared: SkillRoot[] }, runtimeRevision: number): string { + return JSON.stringify({ runtimeRevision, roots }) +} + +function errorMessage(error: unknown): string { + return String(error) +} + +function appendSystem(request: GenerateOptions, text: string): void { + request.system = [request.system ?? '', text].filter(part => part.length > 0).join('\n\n') +} + +export default SkillService diff --git a/packages/core/skill/tests/skill.spec.ts b/packages/core/skill/tests/skill.spec.ts new file mode 100644 index 0000000000..659e4c8b74 --- /dev/null +++ b/packages/core/skill/tests/skill.spec.ts @@ -0,0 +1,342 @@ +import { describe, expect, it } from 'vitest' +import { mkdir, readFile, writeFile } from 'node:fs/promises' +import { join } from 'node:path' +import { tmpdir } from 'node:os' +import { Context } from 'cordis' +import SkillService from '@deepseek-ai/dsh-skill' + +async function tempDir(name: string): Promise { + return await import('node:fs/promises').then(fs => fs.mkdtemp(join(tmpdir(), `dsh-${name}-`))) +} + +async function writeSkill(root: string, name: string, description: string, body = 'Use the skill.'): Promise { + const dir = join(root, name) + await mkdir(dir, { recursive: true }) + await writeFile(join(dir, 'SKILL.md'), `---\nname: ${name}\ndescription: ${description}\n---\n\n${body}\n`) +} + +async function writeFlatSkill(root: string, name: string, description: string, body = 'Flat body.'): Promise { + await mkdir(root, { recursive: true }) + await writeFile(join(root, `${name}.md`), `---\nname: ${name}\ndescription: ${description}\n---\n\n${body}\n`) +} + +describe('SkillService', () => { + it('discovers project, user, agents, and system skill roots in priority order', async () => { + const home = await tempDir('skill-home') + const agentsHome = await tempDir('agents-home') + const project = await tempDir('skill-project') + await mkdir(join(project, '.git'), { recursive: true }) + + await writeSkill(join(home, '.dsh/skills/.system'), 'same', 'system skill') + await writeSkill(join(agentsHome, '.agents/skills'), 'same', 'user agents skill') + await writeSkill(join(home, '.dsh/skills'), 'same', 'user dsh skill') + await writeSkill(join(project, '.agents/skills'), 'same', 'project agents skill') + await writeSkill(join(project, '.dsh/skills'), 'same', 'project dsh skill') + await writeSkill(join(home, '.dsh/skills/.system'), 'system-only', 'system only') + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(agentsHome, '.agents'), installSystemSkills: false }) + + const skills = await ctx.skills.list({ cwd: join(project, 'src') }) + expect(skills.map(skill => [skill.name, skill.description])).toEqual([ + ['same', 'project dsh skill'], + ['system-only', 'system only'], + ]) + expect(skills.find(skill => skill.name === 'same')?.source).toBe('project-dsh') + }) + + it('sorts the final model-visible list by skill name after priority conflict resolution', async () => { + const home = await tempDir('skill-sorted-home') + const agentsHome = await tempDir('skill-sorted-agents') + const project = await tempDir('skill-sorted-project') + await mkdir(join(project, '.git'), { recursive: true }) + + await writeSkill(join(project, '.dsh/skills'), 'z-project', 'Project skill') + await writeSkill(join(home, '.dsh/skills'), 'm-user', 'User skill') + await writeSkill(join(home, '.dsh/skills/.system'), 'a-system', 'System skill') + await writeSkill(join(home, '.dsh/skills/.system'), 'm-user', 'Shadowed system skill') + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(agentsHome, '.agents'), installSystemSkills: false }) + + expect((await ctx.skills.list({ cwd: project })).map(skill => [skill.name, skill.description])).toEqual([ + ['a-system', 'System skill'], + ['m-user', 'User skill'], + ['z-project', 'Project skill'], + ]) + }) + + it('gives project skills priority over runtime skills while runtime overrides user and system skills', async () => { + const home = await tempDir('skill-runtime-priority') + const project = await tempDir('skill-runtime-project') + await mkdir(join(project, '.git'), { recursive: true }) + + await writeSkill(join(project, '.dsh/skills'), 'project-name', 'Project wins') + await writeSkill(join(home, '.dsh/skills'), 'runtime-name', 'User loses') + await writeSkill(join(home, '.dsh/skills/.system'), 'runtime-name', 'System loses') + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + ctx.skills.register({ + name: 'project-name', + description: 'Runtime loses to project', + content: 'Runtime body.', + directory: 'memory://project-name', + source: 'runtime', + }) + ctx.skills.register({ + name: 'runtime-name', + description: 'Runtime wins', + content: 'Runtime body.', + directory: 'memory://runtime-name', + source: 'runtime', + }) + + expect((await ctx.skills.get('project-name', { cwd: project }))?.description).toBe('Project wins') + expect((await ctx.skills.get('runtime-name', { cwd: project }))?.description).toBe('Runtime wins') + }) + + it('does not scan .system twice through the user dsh root', async () => { + const home = await tempDir('skill-system') + await writeSkill(join(home, '.dsh/skills/.system'), 'builtin', 'builtin skill') + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['builtin']) + }) + + it('parses flat skills and filters invalid or model-disabled skills from listing', async () => { + const home = await tempDir('skill-flat') + await writeFlatSkill(join(home, '.dsh/skills'), 'flat-skill', 'flat description', 'Flat instructions.') + await writeFile(join(home, '.dsh/skills/bad.md'), '---\nname: Bad_Name\ndescription: bad\n---\n\nbad') + await writeFile(join(home, '.dsh/skills/missing-description.md'), '---\nname: missing-description\n---\n\nbad') + await writeFile(join(home, '.dsh/skills/no-frontmatter.md'), 'No frontmatter.') + await writeFile(join(home, '.dsh/skills/open-frontmatter.md'), '---\nname: open-frontmatter') + await writeFile(join(home, '.dsh/skills/non-object.md'), '---\n[]\n---\n\nbad') + await writeFile(join(home, '.dsh/skills/no-trailing-body.md'), '---\nname: no-trailing-body\ndescription: No trailing body\n---') + await writeFile(join(home, '.dsh/skills/notes.txt'), 'ignored') + await mkdir(join(home, '.dsh/skills/not-a-skill'), { recursive: true }) + await writeSkill(join(home, '.dsh/skills'), 'hidden-skill', 'hidden description', 'Hidden.') + await writeFile(join(home, '.dsh/skills/hidden-skill/SKILL.md'), '---\nname: hidden-skill\ndescription: hidden description\ndisableModelInvocation: true\n---\n\nHidden.\n') + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['flat-skill', 'no-trailing-body']) + expect((await ctx.skills.get('hidden-skill'))?.content).toContain('Hidden.') + expect(await ctx.skills.get('Bad_Name')).toBeUndefined() + }) + + it('renders no model listing when no model-invocable skills exist', async () => { + const home = await tempDir('skill-empty-listing') + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + expect(await ctx.skills.renderModelListing()).toBe('') + const request = { model: 'm', messages: [], system: 'base' } + const result = await ctx.waterfall('agent/request', { + session: { header: { cwd: home } }, + } as never, 1, 1, request, () => Promise.resolve(request)) + expect(result.system).toBe('base') + }) + + it('installs system skills into the DSH home without overwriting existing files', async () => { + const home = await tempDir('skill-install') + const existing = join(home, '.dsh/skills/.system/dsh-plugin-creator/SKILL.md') + await mkdir(join(home, '.dsh/skills/.system/dsh-plugin-creator'), { recursive: true }) + await writeFile(existing, '---\nname: dsh-plugin-creator\ndescription: Custom system skill\n---\n\nCustom body.\n') + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) + + expect((await ctx.skills.list()).map(skill => [skill.name, skill.description])).toEqual([ + ['dsh-plugin-creator', 'Custom system skill'], + ['dsh-skill-creator', 'Create or update DeepSeek Harness SKILL.md instructions.'], + ]) + expect(await readFile(existing, 'utf8')).toContain('Custom body.') + expect(await readFile(join(home, '.dsh/skills/.system/dsh-skill-creator/SKILL.md'), 'utf8')).toContain('dsh-skill-creator') + }) + + it('degrades when bundled system skill installation fails', async () => { + const home = await tempDir('skill-install-fail') + await writeFile(join(home, '.dsh'), 'not a directory') + await writeSkill(join(home, '.agents/skills'), 'fallback-skill', 'Fallback skill') + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) + + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['fallback-skill']) + }) + + it('memoizes disk discovery until runtime skill registrations change', async () => { + const home = await tempDir('skill-cache') + await writeSkill(join(home, '.dsh/skills'), 'initial-skill', 'Initial skill') + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['initial-skill']) + await writeSkill(join(home, '.dsh/skills'), 'late-skill', 'Late skill') + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['initial-skill']) + + const dispose = ctx.skills.register({ + name: 'runtime-skill', + description: 'runtime', + content: 'Runtime body.', + directory: 'memory://runtime', + source: 'runtime', + }) + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['initial-skill', 'late-skill', 'runtime-skill']) + + dispose() + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['initial-skill', 'late-skill']) + }) + + it('includes extra roots, optional metadata, and explicit false disable flags', async () => { + const home = await tempDir('skill-extra') + const extra = await tempDir('skill-extra-root') + await writeFile(join(extra, 'extra-skill.md'), [ + '---', + 'name: extra-skill', + 'description: Extra skill', + 'whenToUse: For extra-root tests', + 'disableModelInvocation: false', + 'metadata:', + ' owner: tests', + '---', + '', + 'Extra body.', + ].join('\n')) + + const ctx = new Context() + await ctx.plugin(SkillService, { + dshHome: join(home, '.dsh'), + agentsHome: join(home, '.agents'), + extraRoots: [extra], + installSystemSkills: false, + }) + + expect(await ctx.skills.list()).toEqual([{ + name: 'extra-skill', + description: 'Extra skill', + whenToUse: 'For extra-root tests', + disableModelInvocation: false, + directory: extra, + source: 'extra', + }]) + expect((await ctx.skills.get('extra-skill'))?.metadata).toEqual({ owner: 'tests' }) + expect(await ctx.skills.renderModelListing()).toContain('whenToUse: For extra-root tests') + }) + + it('bounds prompt listing fields without changing stored skill content', async () => { + const home = await tempDir('skill-prompt-bounds') + const longDescription = 'a'.repeat(600) + await writeSkill(join(home, '.dsh/skills'), 'long-skill', longDescription, 'Full body.') + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + const listing = await ctx.skills.renderModelListing() + expect(listing).toContain(`${'a'.repeat(497)}...`) + expect(listing).not.toContain('a'.repeat(600)) + expect((await ctx.skills.get('long-skill'))?.description).toBe(longDescription) + }) + + it('adds skill guidance through the agent/request waterfall without including bodies', async () => { + const home = await tempDir('skill-guidance') + await writeSkill(join(home, '.dsh/skills'), 'research-helper', 'Research helper', 'Long body that must not be listed.') + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + const request = await ctx.waterfall('agent/request', { + session: { header: { cwd: home } }, + } as never, 1, 1, { model: 'm', messages: [], system: 'base' }, () => Promise.resolve({ model: 'm', messages: [], system: 'base' })) + + expect(request.system ?? '').toContain('## Skills\n') + expect(request.system ?? '').toContain('research-helper') + expect(request.system ?? '').toContain('source="project-dsh"') + expect(request.system ?? '').not.toContain(home) + expect(request.system ?? '').not.toContain('Long body') + expect((request.system ?? '').match(/## Skills/g)).toHaveLength(1) + + const sameObject = { model: 'm', messages: [], system: 'base' } + const sameObjectResult = await ctx.waterfall('agent/request', { + session: { header: { cwd: home } }, + } as never, 1, 1, sameObject, () => Promise.resolve(sameObject)) + expect(sameObjectResult.system).toContain('## Skills') + + const requestWithoutBase = await ctx.waterfall('agent/request', { + session: { header: { cwd: home } }, + } as never, 1, 1, { model: 'm', messages: [] }, () => Promise.resolve({ model: 'm', messages: [] })) + expect(requestWithoutBase.system).toContain('## Skills') + + const copyCtx = new Context() + await copyCtx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + copyCtx.on('agent/request', async (_agent, _turn, _step, requestToCopy) => ({ ...requestToCopy })) + const copiedRequest = await copyCtx.waterfall('agent/request', { + session: { header: { cwd: home } }, + } as never, 1, 1, { model: 'm', messages: [], system: 'base' }, () => Promise.resolve({ model: 'm', messages: [], system: 'base' })) + expect((copiedRequest.system ?? '').match(/## Skills/g)).toHaveLength(1) + }) + + it('cleans up runtime registered skills when the contributing fiber is disposed', async () => { + const ctx = new Context() + const home = await tempDir('skill-runtime') + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + const fiber = await ctx.plugin(Object.assign((inner: Context) => { + inner.skills.register({ + name: 'runtime-skill', + description: 'runtime', + content: 'Runtime body.', + directory: 'memory://runtime', + source: 'runtime', + }) + }, { inject: ['skills'] })) + + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['runtime-skill']) + await fiber.dispose() + expect(await ctx.skills.list()).toEqual([]) + }) + + it('removes runtime registered skills when the returned disposer is called', async () => { + const home = await tempDir('skill-runtime-disposer') + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + const dispose = ctx.skills.register({ + name: 'manual-dispose', + description: 'manual', + content: 'Manual body.', + directory: 'memory://manual', + source: 'runtime', + }) + + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['manual-dispose']) + dispose() + expect(await ctx.skills.list()).toEqual([]) + }) + + it('rejects invalid runtime skill registrations', async () => { + const home = await tempDir('skill-runtime-invalid') + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + expect(() => ctx.skills.register({ + name: 'Bad_Name', + description: 'bad', + content: 'bad', + directory: 'memory://bad', + source: 'runtime', + })).toThrow('invalid skill name') + expect(() => ctx.skills.register({ + name: 'empty-description', + description: '', + content: 'bad', + directory: 'memory://bad', + source: 'runtime', + })).toThrow('requires a description') + }) +}) diff --git a/packages/core/skill/tsconfig.json b/packages/core/skill/tsconfig.json new file mode 100644 index 0000000000..2ec8481fcd --- /dev/null +++ b/packages/core/skill/tsconfig.json @@ -0,0 +1,14 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": ["src"], + "references": [ + { "path": "../../../vendor/cosmokit" }, + { "path": "../../../vendor/cordis" }, + { "path": "../../llm/llm" }, + { "path": "../agent" } + ] +} diff --git a/packages/core/tool-skill/README.md b/packages/core/tool-skill/README.md new file mode 100644 index 0000000000..21f296ba66 --- /dev/null +++ b/packages/core/tool-skill/README.md @@ -0,0 +1,15 @@ +# @deepseek-ai/dsh-tool-skill + +The model-facing `skill` tool for loading full skill instructions. + +Requires `ctx.tools` and `ctx.skills` (`inject: ['tools', 'skills']`). + +## Tool: `skill` + +| Arg | Type | Notes | +|---|---|---| +| `name` | string (required) | Exact kebab-case skill name from the available skills listing. | + +Execution uses the calling agent's `session.header.cwd` to resolve project-local skills. A successful call returns a text block containing ``, the skill body, the skill base directory, and relative-path guidance. Unknown names, invalid names, and skills marked `disableModelInvocation: true` return `isError` tool results through the normal tool registry error path. + +The tool does not call `agent.inject()` in v1. Its result is already recorded as the tool result and becomes available to the next model step without duplicating the content as synthetic context. diff --git a/packages/core/tool-skill/package.json b/packages/core/tool-skill/package.json new file mode 100644 index 0000000000..508323d729 --- /dev/null +++ b/packages/core/tool-skill/package.json @@ -0,0 +1,38 @@ +{ + "name": "@deepseek-ai/dsh-tool-skill", + "description": "Model-facing skill loading tool for the DeepSeek Harness", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-agent": "^0.0.1", + "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-skill": "^0.0.1", + "@deepseek-ai/dsh-tools": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "devDependencies": { + "@deepseek-ai/dsh-agent": "workspace:^", + "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-skill": "workspace:^", + "@deepseek-ai/dsh-tools": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/core/tool-skill/src/index.ts b/packages/core/tool-skill/src/index.ts new file mode 100644 index 0000000000..faa5fb2243 --- /dev/null +++ b/packages/core/tool-skill/src/index.ts @@ -0,0 +1,52 @@ +/** + * Model-facing `skill` tool. + * + * @module @deepseek-ai/dsh-tool-skill + */ + +import type { Context } from 'cordis' +import { defineTool } from '@deepseek-ai/dsh-tools' +import { isSkillName, type SkillDefinition } from '@deepseek-ai/dsh-skill' + +export const name = 'tool-skill' +export const inject = ['tools', 'skills'] + +export function apply(ctx: Context): void { + const skillTool = defineTool({ + name: 'skill', + description: 'Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.', + parameters: { + name: { type: 'string', required: true, description: 'The exact skill name from the available skills list.' }, + }, + async execute(args, exec) { + if (!isSkillName(args.name)) { + throw new Error(`invalid skill name "${args.name}"`) + } + const skill = await ctx.skills.get(args.name, { cwd: exec.agent?.session.header.cwd }) + if (!skill) { + throw new Error(`unknown skill "${args.name}"`) + } + if (skill.disableModelInvocation === true) { + throw new Error(`skill "${args.name}" is not available for model invocation`) + } + return [{ type: 'text', text: renderSkillContent(skill) }] + }, + presentCall(args) { + return { title: `Load skill ${args.name}`, kind: 'read', rawInput: args.name } + }, + }) + ctx.tools.register(skillTool) +} + +function renderSkillContent(skill: SkillDefinition): string { + return [ + ``, + `# Skill: ${skill.name}`, + '', + skill.content, + '', + `Base directory for this skill: ${skill.directory}`, + 'Resolve relative files mentioned by this skill against the base directory before using them.', + '', + ].join('\n') +} diff --git a/packages/core/tool-skill/tests/tool-skill.spec.ts b/packages/core/tool-skill/tests/tool-skill.spec.ts new file mode 100644 index 0000000000..711a176f65 --- /dev/null +++ b/packages/core/tool-skill/tests/tool-skill.spec.ts @@ -0,0 +1,86 @@ +import { describe, expect, it } from 'vitest' +import { mkdir, writeFile } from 'node:fs/promises' +import { join } from 'node:path' +import { tmpdir } from 'node:os' +import { Context } from 'cordis' +import { CallId } from '@deepseek-ai/dsh-llm' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import SkillService from '@deepseek-ai/dsh-skill' +import * as toolSkill from '@deepseek-ai/dsh-tool-skill' + +async function tempDir(name: string): Promise { + return await import('node:fs/promises').then(fs => fs.mkdtemp(join(tmpdir(), `dsh-${name}-`))) +} + +async function writeSkill(root: string, name: string, description: string, body: string): Promise { + const dir = join(root, name) + await mkdir(dir, { recursive: true }) + await writeFile(join(dir, 'SKILL.md'), `---\nname: ${name}\ndescription: ${description}\n---\n\n${body}\n`) +} + +async function setup(home: string): Promise { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + await ctx.plugin(toolSkill) + return ctx +} + +describe('dsh-tool-skill', () => { + it('registers the skill tool schema and removes it on dispose', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + const home = await tempDir('tool-schema') + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + const fiber = await ctx.plugin(toolSkill) + expect(ctx.tools.schemas().map(tool => tool.name)).toEqual(['skill']) + expect(ctx.tools.get('skill')?.presentCall?.({ name: 'project-skill' })).toEqual({ + title: 'Load skill project-skill', + kind: 'read', + rawInput: 'project-skill', + }) + await fiber.dispose() + expect(ctx.tools.schemas()).toEqual([]) + }) + + it('loads a skill for the calling agent cwd', async () => { + const home = await tempDir('tool-load') + const project = await tempDir('tool-project') + await mkdir(join(project, '.git'), { recursive: true }) + await writeSkill(join(project, '.dsh/skills'), 'project-skill', 'Project skill', 'Project instructions.') + const ctx = await setup(home) + + const result = await ctx.tools.execute({ + callId: CallId('c1'), + name: 'skill', + arguments: { name: 'project-skill' }, + agent: { session: { header: { cwd: project } } } as never, + }) + + expect(result.isError).toBe(false) + const block = result.content[0] + expect(block?.type).toBe('text') + if (block?.type !== 'text') throw new Error('expected text skill result') + expect(block.text).toContain('') + expect(block.text).toContain('Project instructions.') + }) + + it('returns isError for unknown, invalid, and model-disabled skills', async () => { + const home = await tempDir('tool-errors') + await writeSkill(join(home, '.dsh/skills'), 'hidden-skill', 'Hidden skill', 'Hidden instructions.') + await writeFile(join(home, '.dsh/skills/hidden-skill/SKILL.md'), '---\nname: hidden-skill\ndescription: Hidden skill\ndisableModelInvocation: true\n---\n\nHidden instructions.\n') + const ctx = await setup(home) + + const unknown = await ctx.tools.execute({ callId: CallId('c1'), name: 'skill', arguments: { name: 'missing' } }) + const invalid = await ctx.tools.execute({ callId: CallId('c2'), name: 'skill', arguments: { name: 'Bad_Name' } }) + const disabled = await ctx.tools.execute({ callId: CallId('c3'), name: 'skill', arguments: { name: 'hidden-skill' } }) + + expect(unknown.isError).toBe(true) + expect(invalid.isError).toBe(true) + expect(disabled.isError).toBe(true) + }) +}) diff --git a/packages/core/tool-skill/tsconfig.json b/packages/core/tool-skill/tsconfig.json new file mode 100644 index 0000000000..d36e8a449c --- /dev/null +++ b/packages/core/tool-skill/tsconfig.json @@ -0,0 +1,16 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": ["src"], + "references": [ + { "path": "../../../vendor/cosmokit" }, + { "path": "../../../vendor/cordis" }, + { "path": "../../llm/llm" }, + { "path": "../agent" }, + { "path": "../skill" }, + { "path": "../tools" } + ] +} diff --git a/packages/ui/stdio-agent/README.md b/packages/ui/stdio-agent/README.md index a78df0fa72..9c62595aa9 100644 --- a/packages/ui/stdio-agent/README.md +++ b/packages/ui/stdio-agent/README.md @@ -11,7 +11,7 @@ A terminal chat always wants the same cluster, so the package owns it rather tha | Plugin | Why it is here | |---|---| | `@cordisjs/plugin-logger-console` | the console logger — stdout is just the terminal here, so logging to it is correct (the ACP app must NOT have this) | -| `@deepseek-ai/dsh-agent-core` | the spine, pre-creating a `main` agent from this app's `model`/`systemPrompt` | +| `@deepseek-ai/dsh-agent-core` | the spine, pre-creating a `main` agent from this app's `model`/`systemPrompt` with `process.cwd()` as the fresh session cwd | | `@deepseek-ai/dsh-session-persistence-jsonl` | durable JSONL session log under `persistenceRoot` | | `@deepseek-ai/dsh-ui-stdio` | the readline UI, bound to the `main` agent | @@ -29,6 +29,8 @@ The leaf `cordis.yml` supplies only the **swappable backends** — an LLM adapte | `welcome` | `ready.` | the stdin-chat banner | | `resumeSessionId` | — | resume a persisted session id instead of starting fresh (sourced from an env var in the leaf) | +Fresh stdio sessions use the process launch directory as `session.header.cwd`, so project-scoped features such as skill discovery and default bash workdir follow the directory where `dsh-stdio-agent` was started. Resumed sessions keep the cwd stored in the persisted session header. + ## The bin `dsh-stdio-agent [path-to-cordis.yml]` (default `./cordis.yml`) loads a gitignored `.env` from the cwd (`DEEPSEEK_API_KEY` / `DEEPSEEK_BASE_URL`), then drives the cordis Loader against the config and awaits the whole plugin tree before returning. Run it under `node --expose-internals`: the cordis Loader resolves the config's bare plugin specifiers (`@deepseek-ai/dsh-*`, npm packages) through its internal module loader, which is only active under that flag. The `demo:echo` / `demo:coding` scripts invoke it that way. diff --git a/packages/ui/stdio-agent/src/index.ts b/packages/ui/stdio-agent/src/index.ts index c4b9ed202c..9d91134278 100644 --- a/packages/ui/stdio-agent/src/index.ts +++ b/packages/ui/stdio-agent/src/index.ts @@ -48,8 +48,10 @@ export const name = 'stdio-agent' /** * App config: the swappable per-demo values, each routed to where the app wires * it. `model`/`systemPrompt`/`resumeSessionId` configure the pre-created `main` - * agent (through {@link @deepseek-ai/dsh-agent-core}'s forwarded `agents` list); - * `persistenceRoot` is the JSONL backend's directory; `welcome` is the UI banner. + * agent (through {@link @deepseek-ai/dsh-agent-core}'s forwarded `agents` list). + * Fresh sessions use `process.cwd()` as their workspace cwd; resumed sessions + * keep their persisted cwd. `persistenceRoot` is the JSONL backend's directory; + * `welcome` is the UI banner. */ export interface Config { /** Model name for the `main` agent (must have a registered adapter). */ @@ -90,6 +92,7 @@ export function apply(ctx: Context, config: Config): void { id: AgentId('main'), model: config.model, systemPrompt: config.systemPrompt, + cwd: process.cwd(), ...config.resumeSessionId !== undefined ? { resumeSessionId: SessionId(config.resumeSessionId) } : {}, }], }) diff --git a/packages/ui/stdio-agent/tests/stdio-agent.spec.ts b/packages/ui/stdio-agent/tests/stdio-agent.spec.ts index f72de0a1da..b3b2d9ac2a 100644 --- a/packages/ui/stdio-agent/tests/stdio-agent.spec.ts +++ b/packages/ui/stdio-agent/tests/stdio-agent.spec.ts @@ -34,7 +34,9 @@ describe('dsh-stdio-agent app', () => { expect(ctx.get('agentLoop')).toBeDefined() expect(ctx.get('sessionPersistence')).toBeDefined() // The pre-created `main` agent the UI drives. - expect(ctx.get('agents')?.get(AgentId('main'))).toBeDefined() + const agent = ctx.get('agents')?.get(AgentId('main')) + expect(agent).toBeDefined() + expect(agent?.session.header.cwd).toBe(process.cwd()) await ctx.fiber.dispose() }) diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 55e565cad2..7ad0f1f89d 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -153,12 +153,18 @@ importers: '@deepseek-ai/dsh-session': specifier: workspace:^ version: link:../session + '@deepseek-ai/dsh-skill': + specifier: workspace:^ + version: link:../skill '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../system-prompt '@deepseek-ai/dsh-tool-bash': specifier: workspace:^ version: link:../../bash/tool-bash + '@deepseek-ai/dsh-tool-skill': + specifier: workspace:^ + version: link:../tool-skill '@deepseek-ai/dsh-tools': specifier: workspace:^ version: link:../tools @@ -212,6 +218,22 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/core/skill: + dependencies: + yaml: + specifier: ^2.4.2 + version: 2.9.0 + devDependencies: + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../agent + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/core/system-prompt: devDependencies: '@deepseek-ai/dsh-llm': @@ -221,6 +243,24 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/core/tool-skill: + devDependencies: + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../agent + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + '@deepseek-ai/dsh-skill': + specifier: workspace:^ + version: link:../skill + '@deepseek-ai/dsh-tools': + specifier: workspace:^ + version: link:../tools + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/core/tools: devDependencies: '@deepseek-ai/dsh-agent': diff --git a/tsconfig.build.json b/tsconfig.build.json index 4c71d2f14e..8c008704cf 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -19,6 +19,8 @@ { "path": "./packages/core/system-prompt" }, { "path": "./packages/core/agent" }, { "path": "./packages/core/tools" }, + { "path": "./packages/core/skill" }, + { "path": "./packages/core/tool-skill" }, { "path": "./packages/core/agent-loop" }, { "path": "./packages/core/agent-core" }, { "path": "./packages/bash/bash" }, diff --git a/tsconfig.json b/tsconfig.json index dcc23b2fbe..46ed4e35ce 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -30,6 +30,8 @@ { "path": "./packages/core/system-prompt" }, { "path": "./packages/core/agent" }, { "path": "./packages/core/tools" }, + { "path": "./packages/core/skill" }, + { "path": "./packages/core/tool-skill" }, { "path": "./packages/core/agent-loop" }, { "path": "./packages/core/agent-core" }, { "path": "./packages/bash/bash" }, From 51700d4685898a3ef62512c34f2183b7b532a5b1 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Mon, 29 Jun 2026 10:49:07 +0800 Subject: [PATCH 003/232] Fix ask_user_question review findings --- docs/cordis-catalog/events-and-services.md | 2 +- docs/core-data-structures/core.md | 1 + docs/core-data-structures/user-interaction.md | 79 ++++++++ docs/module-graph.md | 10 +- docs/rfc/README.md | 1 + .../feature/2026-06-25-ask-user-question.md | 39 ++++ packages/README.md | 8 +- packages/core/README.md | 1 - packages/core/user-interaction/package.json | 2 + packages/core/user-interaction/src/index.ts | 8 +- packages/core/user-interaction/tsconfig.json | 3 + packages/support/ui-stdio/src/index.ts | 2 +- .../support/ui-stdio/tests/ui-stdio.spec.ts | 13 ++ packages/ui/README.md | 3 + packages/ui/acp-agent/README.md | 4 +- packages/ui/acp-agent/package.json | 4 + packages/ui/acp-agent/src/index.ts | 4 + packages/ui/acp-agent/tests/acp-agent.spec.ts | 2 + packages/ui/acp-agent/tests/built-bin.e2e.ts | 6 +- packages/ui/acp-agent/tsconfig.json | 6 + packages/ui/acp/README.md | 5 +- packages/ui/acp/acp-feature-support.md | 4 +- packages/ui/acp/package.json | 3 + packages/ui/acp/src/index.ts | 156 ++++++++++++++- packages/ui/acp/tests/bridge.spec.ts | 179 +++++++++++++++++- packages/ui/acp/tests/harness.ts | 21 ++ packages/ui/acp/tsconfig.json | 3 + .../ui/stdio-agent/tests/built-bin.e2e.ts | 2 +- packages/ui/stdio-agent/tsconfig.json | 2 +- packages/{core => ui}/tool-ask-user/README.md | 0 .../{core => ui}/tool-ask-user/package.json | 0 .../{core => ui}/tool-ask-user/src/index.ts | 0 .../tool-ask-user/tests/tool-ask-user.spec.ts | 15 ++ .../{core => ui}/tool-ask-user/tsconfig.json | 8 +- pnpm-lock.yaml | 59 +++--- scripts/type-equiv.manifest.json | 6 + tsconfig.build.json | 2 +- tsconfig.json | 2 +- 38 files changed, 611 insertions(+), 54 deletions(-) create mode 100644 docs/core-data-structures/user-interaction.md create mode 100644 docs/rfc/implemented/feature/2026-06-25-ask-user-question.md rename packages/{core => ui}/tool-ask-user/README.md (100%) rename packages/{core => ui}/tool-ask-user/package.json (100%) rename packages/{core => ui}/tool-ask-user/src/index.ts (100%) rename packages/{core => ui}/tool-ask-user/tests/tool-ask-user.spec.ts (93%) rename packages/{core => ui}/tool-ask-user/tsconfig.json (74%) diff --git a/docs/cordis-catalog/events-and-services.md b/docs/cordis-catalog/events-and-services.md index 7d926727a0..8b861e6de1 100644 --- a/docs/cordis-catalog/events-and-services.md +++ b/docs/cordis-catalog/events-and-services.md @@ -463,7 +463,7 @@ registerProvider(provider: UserInteractionProvider): () => void async ask(request: AskUserQuestionRequest): Promise ``` -Source: [`packages/core/user-interaction/src/index.ts:72`](../../packages/core/user-interaction/src/index.ts) +Source: [`packages/core/user-interaction/src/index.ts:70`](../../packages/core/user-interaction/src/index.ts) ## Inherited tier (cordis core + loader/hmr/timer) diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index ad884aeff6..7fd62f38e6 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -19,6 +19,7 @@ Everything else is documented on a **sub-page**, not here. The rule that draws t | [session.md](session.md) | the full `SessionEventMap` variant catalog, `TurnTrigger`/`TurnEndReason`, `deriveMessages()`, the turn-enclosure invariant | | [persistence.md](persistence.md) | the durability seam: `SessionPersistence`, JSONL + SQLite backends, `session/flush`, crash recovery, `SessionHeader` | | [tools.md](tools.md) | `ToolDefinition` full fields, the schema DSL, `ToolExecution`/`ToolResult`, tool-presentation UI types, the `tools/execute` waterfall | +| [user-interaction.md](user-interaction.md) | the human question/answer seam: `AskUserQuestionRequest`/`Answer`, options, provider, structured errors | | [bash.md](bash.md) | the bash executor seam: `BashExecRequest`/`Spec`, `BashRunResult`, background `BashTask`s | | [subagent.md](subagent.md) | the subagent seam: the named-provider registry, `SubagentStartRequest`/`Result`/`Run`, the start-time-vs-runtime capability split | diff --git a/docs/core-data-structures/user-interaction.md b/docs/core-data-structures/user-interaction.md new file mode 100644 index 0000000000..0cf0864121 --- /dev/null +++ b/docs/core-data-structures/user-interaction.md @@ -0,0 +1,79 @@ +# User Interaction + +The user-interaction seam of [dsh-user-interaction](../../packages/core/user-interaction). It is the provider-neutral vocabulary a tool or permission plugin uses when it needs the human to answer before the agent can continue. UI surfaces provide the active `UserInteractionProvider`: `dsh-ui-stdio` renders questions in readline, and `dsh-acp` maps them to ACP form elicitations. + +Source: [`packages/core/user-interaction/src/index.ts`](../../packages/core/user-interaction/src/index.ts) + +## Question options + +`AskUserQuestionOption` is the selectable-choice shape. `label` is user-facing, while `value` is the model-facing answer returned when the option is selected; when omitted, providers use the label. + +```ts type-equiv +interface AskUserQuestionOption { + /** User-facing label. */ + label: string + /** Value returned to the model when selected. Defaults to `label`. */ + value?: string + /** Optional extra context rendered by capable UIs. */ + description?: string + /** Marks the recommended/default option. */ + recommended?: boolean +} +``` + +## Ask request + +`AskUserQuestionRequest` is the cross-package request. `options` being absent means free-form input; an optionless request remains free-form even when a caller sets `allowCustom: false`, because there is no selectable option to constrain the answer to. + +```ts type-equiv +interface AskUserQuestionRequest { + /** The question to display. */ + question: string + /** Optional short heading/group label. */ + header?: string + /** Optional choices the UI can render as a menu. */ + options?: AskUserQuestionOption[] + /** Whether free-form answers are accepted. Defaults to `true`. */ + allowCustom?: boolean + /** Calling agent, when the request came from an agent tool call. */ + agent?: Agent + /** Abort signal for the owning tool/step. */ + signal?: AbortSignal +} +``` + +## Answer + +Providers return the model-facing `answer` text and optionally echo the chosen option as metadata. Consumers should use `answer`; the option is for UI/session metadata and diagnostics. + +```ts type-equiv +interface AskUserQuestionAnswer { + /** Model-facing answer text. */ + answer: string + /** The selected option, when the answer came from `options`. */ + option?: AskUserQuestionOption +} +``` + +## Provider + +Only one provider may be active in a context. Provider registration is effect-bound so HMR/disposal removes the active UI. + +```ts type-equiv +interface UserInteractionProvider { + ask(request: AskUserQuestionRequest): Promise +} +``` + +## Errors + +`UserInteractionError` extends `HarnessError`, so `ctx.tools.execute()` preserves `{ name, code }` for model-facing tool failures such as `NO_PROVIDER`, `ASK_ABORTED`, or ACP-side cancellation. + +```ts type-equiv +class UserInteractionError extends HarnessError { + constructor(message: string, code: string, options?: ErrorOptions) { + super(message, code, options) + this.name = 'UserInteractionError' + } +} +``` diff --git a/docs/module-graph.md b/docs/module-graph.md index fb21a1184a..5dbf0d2672 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -32,11 +32,13 @@ graph TD tools --> llm tools --> system-prompt user-interaction --> agent + user-interaction --> llm acp --> agent acp --> llm acp --> session acp --> session-persistence acp --> tools + acp --> user-interaction agent-loop --> agent agent-loop --> llm agent-loop --> session @@ -81,6 +83,8 @@ graph TD acp-agent --> acp acp-agent --> agent-core acp-agent --> session-persistence-jsonl + acp-agent --> tool-ask-user + acp-agent --> user-interaction stdio-agent --> agent stdio-agent --> agent-core stdio-agent --> session @@ -113,8 +117,8 @@ graph TD | `session-persistence-jsonl` | `session`, `session-persistence` | | `session-persistence-sqlite` | `session`, `session-persistence` | | `tools` | `agent`, `llm`, `system-prompt` | -| `user-interaction` | `agent` | -| `acp` | `agent`, `llm`, `session`, `session-persistence`, `tools` | +| `user-interaction` | `agent`, `llm` | +| `acp` | `agent`, `llm`, `session`, `session-persistence`, `tools`, `user-interaction` | | `agent-loop` | `agent`, `llm`, `session`, `session-persistence`, `system-prompt`, `tools` | | `subagent` | `agent`, `llm`, `tools` | | `tool-ask-user` | `agent`, `tools`, `user-interaction` | @@ -125,7 +129,7 @@ graph TD | `subagent-inprocess` | `agent`, `llm`, `session`, `subagent` | | `subagent-mock` | `agent`, `llm`, `subagent` | | `tool-subagent` | `agent`, `llm`, `subagent`, `tools` | -| `acp-agent` | `acp`, `agent-core`, `session-persistence-jsonl` | +| `acp-agent` | `acp`, `agent-core`, `session-persistence-jsonl`, `tool-ask-user`, `user-interaction` | | `stdio-agent` | `agent`, `agent-core`, `session`, `session-persistence-jsonl`, `tool-ask-user`, `ui-stdio`, `user-interaction` | | `subagent-fork` | `agent`, `session`, `subagent`, `subagent-inprocess` | | `subagent-spawn` | `subagent`, `subagent-inprocess` | diff --git a/docs/rfc/README.md b/docs/rfc/README.md index 8667cccba2..da55b13bad 100644 --- a/docs/rfc/README.md +++ b/docs/rfc/README.md @@ -84,6 +84,7 @@ Do NOT write one for a mechanical or local choice (a variable name, a one-file r | [Rich ACP bash rendering — the terminal card (`_meta`) and command classification](implemented/feature/2026-06-18-acp-terminal-and-tool-rendering.md) | 2026-06-18 | | [Subagent capability seam](implemented/feature/2026-06-21-subagent-capability-seam.md) | 2026-06-21 | | [ACP subagent backend (out-of-process delegation)](implemented/feature/2026-06-22-acp-subagent-backend.md) | 2026-06-22 | +| [Ask-user question capability](implemented/feature/2026-06-25-ask-user-question.md) | 2026-06-25 | ### Simplification diff --git a/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md b/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md new file mode 100644 index 0000000000..bc5c140fa5 --- /dev/null +++ b/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md @@ -0,0 +1,39 @@ +# RFC: Ask-user question capability + +Status: implemented + +## Problem + +The agent sometimes cannot proceed safely from model inference alone: it needs the human to choose a path, confirm a risky/default action, or provide missing information. Before this change, the only way to get that answer was for the model to ask in assistant text and then stop, which broke the normal tool-call loop: the agent had no structured way to pause, no option metadata for UIs, no abort/error taxonomy, and no way for non-stdio front doors to present the question consistently. + +This is a user-facing capability, but it also crosses package boundaries. A model-facing tool needs a provider-neutral request vocabulary; each UI surface needs to decide how to show and collect the answer; the agent loop should remain unchanged because a tool call already has the right async shape. + +## Decision + +Introduce `dsh-user-interaction` as the core interface package for `ctx.userInteraction`, and keep the model-facing consumer `dsh-tool-ask-user` under `packages/ui/tool-ask-user` rather than the core spine. The split is intentional: core owns the abstract seam and stable request/answer/error vocabulary; UI product surfaces own the affordance that asks a human and the concrete provider that collects the answer. The tool registers `ask_user_question`, forwards `{ question, header, options, allowCustom, agent, signal }`, and returns the provider-computed `answer` as the tool result. + +The request vocabulary supports a short `header`, the required `question`, optional mutually exclusive `options`, `description` for each option, a `recommended` marker, and `allowCustom`. `label` is user-facing display text; `value` is the model-facing answer for a selected option and defaults to `label`. Providers return `AskUserQuestionAnswer.answer` as the single source of truth; the selected `option` is metadata. The tool schema exposes `description` only, not the synonym `desc`, to keep the model-facing surface small. + +Optionless questions are always free-form, even if a caller passes `allowCustom: false`. The opposite would create an unanswerable prompt: with no option to select and free-form input disallowed, every human answer would be rejected forever. Providers therefore treat "no options" as the free-form shape. + +`UserInteractionError` extends `HarnessError`, so failures such as `NO_PROVIDER`, `ASK_ABORTED`, ACP cancellation, or missing session routing survive `ctx.tools.execute()` as machine-routable `{ name, code }` tool errors. This matches the structured-error taxonomy and lets the model or a wrapping plugin distinguish "user cancelled" from a generic thrown exception. + +## UI mappings + +`dsh-ui-stdio` renders the question in readline, sorts recommended options first, shows each option's `description` on the next line, accepts the recommended option on an empty answer, and rejects pending questions on abort, provider disposal, or stdin EOF. The stdio provider serializes multiple simultaneous questions with an internal queue so only one prompt owns stdin at a time. + +`dsh-acp` provides the same seam for ACP sessions. It routes an ask request from the calling `Agent` through the bridge's `agent→sessionId` reverse map and calls ACP `unstable_createElicitation` with a session-scoped form. Option choices become a `choice` single-select field with the recommended option as the schema default; free-form answers use `answer` for optionless questions and `custom_answer` when options plus custom input are allowed. ACP `decline`/`cancel`, a missing answer, a missing session, and a client without elicitation support all become structured `UserInteractionError`s. + +The ACP mapping deliberately uses elicitation, not `session/request_permission`. `request_permission` is still reserved for the separate permission gate: it is a yes/no-or-policy authorization protocol around tool execution. `ask_user_question` is a general information-gathering tool with optional free-form answers, so ACP form elicitation is the closer protocol fit. The bridge's session routing is shared with the future permission gate, but the user intent is different. + +## Risks / trade-offs + +ACP elicitation is currently marked unstable in the SDK. The fallback is still structured: if a client does not implement it, the tool returns `ASK_FAILED` rather than hanging. A later ACP stabilization may rename or reshape the method; that migration should stay inside `dsh-acp` because the core `ctx.userInteraction` vocabulary is provider-neutral. + +The feature gives the model a powerful pause primitive, so prompt guidance matters. The tool description tells the model to ask concise questions and use options when possible. Product policy can later wrap `tools/execute` to restrict when the tool is allowed, but the loop should not special-case it. + +`dsh-tool-ask-user` lives in `packages/ui` even though it is a tool, because it is a product-facing human-interaction affordance rather than providerless loop infrastructure. The core package remains only the abstract seam; `agent-core` does not load the tool. Front-door app packages such as `stdio-agent` and `acp-agent` opt into it alongside their UI provider. + +## Test plan + +Unit coverage pins provider registration/disposal, duplicate-provider rejection, abort-before-provider, structured tool errors through `ctx.tools.execute()`, option labels/values, and the model schema including the removal of `desc`. `dsh-ui-stdio` tests cover recommended-first display, descriptions, queued questions, EOF/abort cleanup, and optionless free-form input even with `allowCustom: false`. ACP bridge tests drive a real in-memory ACP connection with the real `ask_user_question` tool and verify both selected-option and optionless free-form elicitation paths continue the agent loop. diff --git a/packages/README.md b/packages/README.md index 0fa915f3ef..3ce54b9996 100644 --- a/packages/README.md +++ b/packages/README.md @@ -28,7 +28,7 @@ dsh-bash ← dsh-brand (abstract executor seam; b dsh-session ← dsh-llm, dsh-brand dsh-system-prompt ← dsh-llm dsh-agent ← dsh-llm, dsh-session, dsh-brand -dsh-user-interaction ← dsh-agent +dsh-user-interaction ← dsh-agent, dsh-llm dsh-tools ← dsh-llm, dsh-system-prompt, dsh-agent dsh-tool-ask-user ← dsh-tools, dsh-user-interaction dsh-bash-local ← dsh-bash (BashExecutor impl) @@ -37,7 +37,7 @@ dsh-llm-deepseek ← dsh-llm (DeepSeek adapter) dsh-llm-pi-ai ← dsh-llm (pi-ai-backed adapter) dsh-agent-loop ← dsh-llm, dsh-session, dsh-system-prompt, dsh-tools, dsh-agent dsh-invariants ← dsh-llm, dsh-session, dsh-agent (dev-mode contract checks) -dsh-acp ← dsh-agent, dsh-llm, dsh-session, dsh-session-persistence (ACP JSON-RPC bridge) +dsh-acp ← dsh-agent, dsh-llm, dsh-session, dsh-session-persistence, dsh-tools, dsh-user-interaction (ACP JSON-RPC bridge + user-interaction provider) dsh-ui-stdio ← dsh-agent, dsh-session, dsh-user-interaction (stdio readline UI plugin + user-interaction provider) dsh-llm-replay ← dsh-llm, dsh-session (record/replay adapter for keyless snapshot tests) dsh-subagent ← dsh-agent, dsh-llm, dsh-tools (abstract subagent provider-registry seam) @@ -48,7 +48,7 @@ dsh-subagent-acp ← dsh-subagent, dsh-agent, dsh-llm, @agentclientprotocol/sdk dsh-tool-subagent ← dsh-subagent, dsh-tools, dsh-agent (model-facing delegation tool) dsh-agent-core ← timer, dsh-llm, dsh-session, dsh-system-prompt, dsh-tools, dsh-agent, dsh-invariants, dsh-tool-bash, dsh-agent-loop (the providerless spine, as one bundle plugin) dsh-stdio-agent ← dsh-agent-core, dsh-user-interaction, dsh-tool-ask-user, dsh-ui-stdio, dsh-session-persistence-jsonl, dsh-agent, dsh-session (stdio chat APP + bin) -dsh-acp-agent ← dsh-agent-core, dsh-acp, dsh-session-persistence-jsonl (ACP server APP + bin) +dsh-acp-agent ← dsh-agent-core, dsh-acp, dsh-user-interaction, dsh-tool-ask-user, dsh-session-persistence-jsonl (ACP server APP + bin) ``` The rule: **extension** plugins depend on interfaces, never on the concrete loop. `dsh-agent-loop` is swappable — UI/hook/tool plugins keep working against the `dsh-agent` vocabulary if the loop is replaced. The sanctioned exception is a **composition/bundle** package like `dsh-agent-core`, whose whole job is to assemble the concrete spine: it depends on `dsh-agent-loop` (and the other concrete spine plugins) on purpose. The rule constrains plugins that EXTEND the system, not the bundle that COMPOSES it — swapping the loop means shipping a different bundle, not rewiring every extension. A swappable capability splits into interface / implementation / consumer packages (the bash trio is the template — see [capability seams](../docs/rfc/implemented/architecture/2026-06-13-capability-seams.md)). @@ -62,7 +62,6 @@ The rule: **extension** plugins depend on interfaces, never on the concrete loop | `system-prompt/` | `core` | Prompt-section + tool-schema assembly registry | `ctx.systemPrompt` | | `tools/` | `core` | Tool registry + `tools/execute` waterfall | `ctx.tools` | | `user-interaction/` | `core` | Abstract human question/answer seam | `ctx.userInteraction` | -| `tool-ask-user/` | `core` | Model-facing `ask_user_question` tool | (registers on `ctx.tools`) | | `agent/` | `core` | Agent interface, registry, `agent/*` event vocabulary | `ctx.agents` | | `agent-loop/` | `core` | THE concrete loop plugin: `ReactLoopAgent` + the loop driver | `ctx.agentLoop` | | `agent-core/` | `core` | Bundle plugin: the providerless/executor-less/UI-less spine as code (forwards `agent-loop`'s `agents`) | (loads the spine) | @@ -76,6 +75,7 @@ The rule: **extension** plugins depend on interfaces, never on the concrete loop | `session-persistence-sqlite/` | `session-persistence` | SQLite persistence backend | (registers `ctx.sessionPersistence`) | | `invariants/` | `support` | Dev-mode event-contract invariants + session-log freeze | (listens on `session/*`, `agent/*`) | | `acp/` | `ui` | Agent Client Protocol bridge: serves the agent to an ACP editor over JSON-RPC stdio | (drives `ctx.agents`/`ctx.sessions`) | +| `tool-ask-user/` | `ui` | Model-facing `ask_user_question` tool | (registers on `ctx.tools`) | | `stdio-agent/` | `ui` | Terminal stdio chat APP: agent-core spine + console logger + readline UI + a pre-created `main` agent, with a `bin` | (composition + `bin`) | | `acp-agent/` | `ui` | ACP server APP: agent-core spine + JSONL persistence + the `acp` bridge (no stdout logger), with a `bin` | (composition + `bin`) | | `ui-stdio/` | `support` | Minimal stdio (readline) UI plugin: renders `agent/*` events, feeds stdin lines to the agent | (drives `ctx.agents`) | diff --git a/packages/core/README.md b/packages/core/README.md index 8f65eb9ab9..21e4b3bab0 100644 --- a/packages/core/README.md +++ b/packages/core/README.md @@ -8,7 +8,6 @@ The packages every harness build is assembled from: the session log, the system- | `system-prompt/` | Prompt-section + tool-schema assembly registry | `ctx.systemPrompt` | | `tools/` | Tool registry + `tools/execute` waterfall | `ctx.tools` | | `user-interaction/` | Human question/answer seam for tools and permission flows | `ctx.userInteraction` | -| `tool-ask-user/` | Model-facing `ask_user_question` tool over `ctx.userInteraction` | (registers on `ctx.tools`) | | `agent/` | Agent interface, registry, `agent/*` event vocabulary | `ctx.agents` | | `agent-loop/` | The concrete loop plugin: `ReactLoopAgent` + the loop driver | `ctx.agentLoop` | | `agent-core/` | Bundle plugin: the providerless/executor-less/UI-less spine as code | (loads the spine) | diff --git a/packages/core/user-interaction/package.json b/packages/core/user-interaction/package.json index 2b96284aca..f333195ac7 100644 --- a/packages/core/user-interaction/package.json +++ b/packages/core/user-interaction/package.json @@ -23,10 +23,12 @@ "license": "BSD-3-Clause", "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", + "@deepseek-ai/dsh-llm": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", + "@deepseek-ai/dsh-llm": "workspace:^", "cordis": "^4.0.0-rc.6" } } diff --git a/packages/core/user-interaction/src/index.ts b/packages/core/user-interaction/src/index.ts index 95c0847e27..ad6c1dde8e 100644 --- a/packages/core/user-interaction/src/index.ts +++ b/packages/core/user-interaction/src/index.ts @@ -9,6 +9,7 @@ import { Context, Service } from 'cordis' import type { Agent } from '@deepseek-ai/dsh-agent' +import { HarnessError } from '@deepseek-ai/dsh-llm' declare module 'cordis' { interface Context { @@ -58,12 +59,9 @@ export interface UserInteractionProvider { } /** Stable error taxonomy for user-interaction failures. */ -export class UserInteractionError extends Error { - readonly code: string - +export class UserInteractionError extends HarnessError { constructor(message: string, code: string, options?: ErrorOptions) { - super(message, options) - this.code = code + super(message, code, options) this.name = 'UserInteractionError' } } diff --git a/packages/core/user-interaction/tsconfig.json b/packages/core/user-interaction/tsconfig.json index 41720b3057..cf9888627c 100644 --- a/packages/core/user-interaction/tsconfig.json +++ b/packages/core/user-interaction/tsconfig.json @@ -16,6 +16,9 @@ }, { "path": "../agent" + }, + { + "path": "../../llm/llm" } ] } diff --git a/packages/support/ui-stdio/src/index.ts b/packages/support/ui-stdio/src/index.ts index 26a1e37754..ddb662719a 100644 --- a/packages/support/ui-stdio/src/index.ts +++ b/packages/support/ui-stdio/src/index.ts @@ -261,7 +261,7 @@ export function createStdioChat(ctx: Context, config: Config, runtime: StdioRunt return } - const allowCustom = pending.request.allowCustom ?? true + const allowCustom = options.length === 0 || (pending.request.allowCustom ?? true) if (allowCustom && text !== '') { finishQuestion(pending, { answer: text }) return diff --git a/packages/support/ui-stdio/tests/ui-stdio.spec.ts b/packages/support/ui-stdio/tests/ui-stdio.spec.ts index e40847ae51..cc78b81a98 100644 --- a/packages/support/ui-stdio/tests/ui-stdio.spec.ts +++ b/packages/support/ui-stdio/tests/ui-stdio.spec.ts @@ -328,6 +328,19 @@ describe('createStdioChat input', () => { await expect(answer).resolves.toEqual({ answer: 'Use defaults' }) }) + it('accepts free-form input for an optionless question even when allowCustom is false', async () => { + const { ctx, input } = await setup() + const answer = ctx.userInteraction.ask({ + question: 'Choose?', + allowCustom: false, + }) + await new Promise(r => setImmediate(r)) + + input.feed('Use the default path') + + await expect(answer).resolves.toEqual({ answer: 'Use the default path' }) + }) + it('rejects an active question when its signal aborts', async () => { const { ctx } = await setup() const controller = new AbortController() diff --git a/packages/ui/README.md b/packages/ui/README.md index 075dfd524d..322285c5e4 100644 --- a/packages/ui/README.md +++ b/packages/ui/README.md @@ -5,9 +5,12 @@ Integrations that expose the agent to an external editor or client. These are ** | Package | Role | ctx key | |---|---|---| | `acp/` | Agent Client Protocol bridge: serves the agent to an ACP editor (Zed) over JSON-RPC stdio | (drives `ctx.agents`/`ctx.sessions`) | +| `tool-ask-user/` | Model-facing `ask_user_question` tool over `ctx.userInteraction` | (registers on `ctx.tools`) | | `stdio-agent/` | Terminal stdio chat APP: the agent-core spine + console logger + readline UI + a pre-created `main` agent, with a `bin` | (composition + `bin`) | | `acp-agent/` | ACP server APP: the agent-core spine + JSONL persistence + the `acp` bridge (no stdout logger), with a `bin` | (composition + `bin`) | A UI integration is a client-driver plugin, not a loop change and not a capability seam: it consumes the existing `agent/*` event taxonomy and the `dsh-agent` factory. The readline `ui-stdio` plugin is the unstructured analogue but lives in `support/` because it exists chiefly for the examples and the coverage gate — `ui/` is reserved for surfaces shipped as product. +`tool-ask-user` lives here because it is a model-facing product affordance that depends on a UI/provider seam; it is not part of the providerless core spine. + `stdio-agent` and `acp-agent` are the two **app packages**: each composes the [`core/agent-core`](../core/agent-core/README.md) spine with its coupled front-door cluster (and owns the boot `bin`), so a leaf `cordis.yml` is just the swappable backends plus one app entry. They live in `ui/` because each IS a user-facing front door; the stdout-purity coupling (logger vs. no logger) becomes a property of the artifact rather than a leaf convention. diff --git a/packages/ui/acp-agent/README.md b/packages/ui/acp-agent/README.md index 3403ef2126..fdacbb7f17 100644 --- a/packages/ui/acp-agent/README.md +++ b/packages/ui/acp-agent/README.md @@ -11,8 +11,10 @@ stdout is the ACP JSON-RPC channel, so the cluster is defined as much by what it | Plugin | Why | |---|---| | `@deepseek-ai/dsh-agent-core` | the spine, pre-creating **no** agents (ACP `session/new` creates them on demand) | +| `@deepseek-ai/dsh-user-interaction` | the human question/answer seam used by confirmation tools | +| `@deepseek-ai/dsh-tool-ask-user` | the model-facing `ask_user_question` tool | | `@deepseek-ai/dsh-session-persistence-jsonl` | durable JSONL session log (the bridge advertises `loadSession`) | -| `@deepseek-ai/dsh-acp` | the bridge that owns stdout for JSON-RPC | +| `@deepseek-ai/dsh-acp` | the bridge that owns stdout for JSON-RPC and provides ACP-backed user answers | | ~~console logger~~ | **omitted** — it writes to stdout and would corrupt the protocol frames ([the stdout-purity footgun](../acp/README.md)) | | ~~`hmr`~~ | **omitted** — the editor owns the subprocess | diff --git a/packages/ui/acp-agent/package.json b/packages/ui/acp-agent/package.json index 72eb95b2f7..3e732a5441 100644 --- a/packages/ui/acp-agent/package.json +++ b/packages/ui/acp-agent/package.json @@ -35,6 +35,8 @@ "@deepseek-ai/dsh-acp": "^0.0.1", "@deepseek-ai/dsh-agent-core": "^0.0.1", "@deepseek-ai/dsh-session-persistence-jsonl": "^0.0.1", + "@deepseek-ai/dsh-tool-ask-user": "^0.0.1", + "@deepseek-ai/dsh-user-interaction": "^0.0.1", "cordis": "^4.0.0-rc.6", "schemastery": "^3.17.0" }, @@ -44,6 +46,8 @@ "@deepseek-ai/dsh-acp": "workspace:^", "@deepseek-ai/dsh-agent-core": "workspace:^", "@deepseek-ai/dsh-session-persistence-jsonl": "workspace:^", + "@deepseek-ai/dsh-tool-ask-user": "workspace:^", + "@deepseek-ai/dsh-user-interaction": "workspace:^", "cordis": "^4.0.0-rc.6", "schemastery": "^3.17.0" } diff --git a/packages/ui/acp-agent/src/index.ts b/packages/ui/acp-agent/src/index.ts index 625467cac2..c04f2fe72a 100644 --- a/packages/ui/acp-agent/src/index.ts +++ b/packages/ui/acp-agent/src/index.ts @@ -34,6 +34,8 @@ import z from 'schemastery' import * as acp from '@deepseek-ai/dsh-acp' import * as agentCore from '@deepseek-ai/dsh-agent-core' import SessionPersistenceJsonl from '@deepseek-ai/dsh-session-persistence-jsonl' +import UserInteractionService from '@deepseek-ai/dsh-user-interaction' +import * as toolAskUser from '@deepseek-ai/dsh-tool-ask-user' export const name = 'acp-agent' @@ -67,6 +69,8 @@ export const Config: z = z.object({ */ export function apply(ctx: Context, config: Config): void { ctx.plugin(agentCore) + ctx.plugin(UserInteractionService) + ctx.plugin(toolAskUser) ctx.plugin(SessionPersistenceJsonl, { root: config.persistenceRoot ?? './.sessions' }) ctx.plugin(acp, { model: config.model, systemPrompt: config.systemPrompt }) } diff --git a/packages/ui/acp-agent/tests/acp-agent.spec.ts b/packages/ui/acp-agent/tests/acp-agent.spec.ts index 7a02837fca..aa40079cb6 100644 --- a/packages/ui/acp-agent/tests/acp-agent.spec.ts +++ b/packages/ui/acp-agent/tests/acp-agent.spec.ts @@ -29,6 +29,8 @@ describe('dsh-acp-agent composition', () => { expect(ctx.get('sessions')).toBeDefined() expect(ctx.get('sessionPersistence')).toBeDefined() expect(ctx.get('agentLoop')).toBeDefined() + expect(ctx.get('userInteraction')).toBeDefined() + expect(ctx.get('tools')?.get('ask_user_question')).toBeDefined() // No pre-created agents — ACP session/new creates them on demand. expect(ctx.get('agents')!.list()).toHaveLength(0) await ctx.fiber.dispose() diff --git a/packages/ui/acp-agent/tests/built-bin.e2e.ts b/packages/ui/acp-agent/tests/built-bin.e2e.ts index 51c5d53c0b..e2bab79ee4 100644 --- a/packages/ui/acp-agent/tests/built-bin.e2e.ts +++ b/packages/ui/acp-agent/tests/built-bin.e2e.ts @@ -39,10 +39,12 @@ const acpBin = join(repoRoot, 'packages/ui/acp-agent/lib/bin.js') const dshPackages = [ 'core/agent-core', 'core/agent', 'core/session', 'core/system-prompt', - 'core/tools', 'core/agent-loop', 'llm/llm', 'llm/llm-deepseek', 'bash/bash', - 'bash/bash-local', 'bash/tool-bash', 'support/invariants', + 'core/tools', 'core/user-interaction', 'core/agent-loop', 'llm/llm', + 'llm/llm-deepseek', 'bash/bash', 'bash/bash-local', 'bash/tool-bash', + 'support/invariants', 'session-persistence/session-persistence', 'session-persistence/session-persistence-jsonl', 'ui/acp', 'ui/acp-agent', + 'ui/tool-ask-user', ] const vendorPackages = [ 'cordis', 'loader', 'include', 'timer', 'hmr', 'logger-console', diff --git a/packages/ui/acp-agent/tsconfig.json b/packages/ui/acp-agent/tsconfig.json index ffea8ec6f6..79a68c6337 100644 --- a/packages/ui/acp-agent/tsconfig.json +++ b/packages/ui/acp-agent/tsconfig.json @@ -23,6 +23,12 @@ { "path": "../../core/agent-core" }, + { + "path": "../../core/user-interaction" + }, + { + "path": "../tool-ask-user" + }, { "path": "../../session-persistence/session-persistence-jsonl" } diff --git a/packages/ui/acp/README.md b/packages/ui/acp/README.md index ad50383542..771cf47af3 100644 --- a/packages/ui/acp/README.md +++ b/packages/ui/acp/README.md @@ -8,7 +8,7 @@ It is a **client-driver / UI plugin**, the structured analogue of the readline ` `apply(ctx, config)` — wires an `AgentSideConnection` (from `@agentclientprotocol/sdk`) to `process.stdin`/`process.stdout` and implements the ACP `Agent` method surface. -`inject: ['agents', 'sessions', 'sessionPersistence', 'tools']` — programs against the interface packages only (never `dsh-agent-loop`). `sessionPersistence` is required because `initialize` advertises `loadSession: true`; `tools` lets a tool own how its calls render (`presentCall`/`presentResult`) — the bridge looks the definition up by name and falls back to a generic presentation when a tool declares none (see Tool-call presentation). +`inject: ['agents', 'sessions', 'sessionPersistence', 'tools', 'userInteraction']` — programs against the interface packages only (never `dsh-agent-loop`). `sessionPersistence` is required because `initialize` advertises `loadSession: true`; `tools` lets a tool own how its calls render (`presentCall`/`presentResult`) — the bridge looks the definition up by name and falls back to a generic presentation when a tool declares none (see Tool-call presentation). `userInteraction` lets the bridge provide ACP-backed answers for tools such as `ask_user_question`. ### Config @@ -29,10 +29,11 @@ It is a **client-driver / UI plugin**, the structured analogue of the readline ` | `session/prompt` | `agent.send()` | supports ACP `text` and `resource_link` blocks; rejects image/audio/embedded resource and empty prompts; one in-flight prompt PER session (independent); settles on the OWNING turn's end (a turn that ends in `error` rejects the RPC) | | `session/cancel` | `agent.cancel()` | the queue-aware cancel: aborts a running step, clears queued + steering work, and drops a turn about to start, then settles the prompt `cancelled` — for ONLY that session (a cancel never touches another session's stream or prompt) | | `session/update` | `session/event` | `agent_message_chunk` (text-delta), `agent_thought_chunk` (reasoning-delta), `user_message_chunk` (load replay), `tool_call`/`tool_call_update` (title/kind/rawInput/content owned by the TOOL via `presentCall`/`presentResult` — see Tool-call presentation) | +| `elicitation/create` | `ctx.userInteraction` provider | `ask_user_question` pauses the tool call and asks the ACP client for a session-scoped form; choices use a `choice` single-select field, free-form answers use `answer`/`custom_answer`, and cancel/decline returns a structured `UserInteractionError` | ## Multi-session -The bridge multiplexes N sessions over one connection. Live sessions are held in a `Map` (forward) with a `WeakMap` reverse map so `agent/*` events — which carry only the `Agent` — demux in O(1). Every `session/event` and `agent/status` is routed strictly to its owning record, so concurrent sessions never cross-settle or interleave their `session/update` notifications. State is per session: one in-flight prompt each, `session/cancel` aborts and settles only its own agent/prompt, and disposal drains every live session in parallel to quiescence. (Per-session *permission* ownership is reserved for the deferred permission gate — `TODO(rfc010-permission-gate)`.) +The bridge multiplexes N sessions over one connection. Live sessions are held in a `Map` (forward) with a `WeakMap` reverse map so `agent/*` events — and `ctx.userInteraction` requests, which carry only the calling `Agent` — demux in O(1). Every `session/event`, `agent/status`, and ask-user elicitation is routed strictly to its owning record, so concurrent sessions never cross-settle or interleave their `session/update` notifications. State is per session: one in-flight prompt each, `session/cancel` aborts and settles only its own agent/prompt, and disposal drains every live session in parallel to quiescence. (Per-session *permission* ownership is reserved for the deferred permission gate — `TODO(rfc010-permission-gate)`.) Background-task isolation rides on `dsh-tool-bash`: bash task ids are global and predictable, so each task carries an opaque owner token — the owning agent's `session.header.id` — stored on the task inside the executor (`dsh-bash`'s `ownerOf(id)` seam). `bash_output`/`bash_kill` reject a task whose token differs from the caller's session token, so one session's agent can't read or kill another's task. Ownership is by session TOKEN, not `Agent` object identity — a different `Agent` object on the same session may access the task — and because the token lives on the executor's task it survives a `tool-bash` HMR reload. diff --git a/packages/ui/acp/acp-feature-support.md b/packages/ui/acp/acp-feature-support.md index 429c862b27..56855bfd00 100644 --- a/packages/ui/acp/acp-feature-support.md +++ b/packages/ui/acp/acp-feature-support.md @@ -47,7 +47,7 @@ These are capabilities the bridge would *drive* on the editor. The harness runs | `terminal/wait_for_exit` | S | ❌ | ❌ | ❌ | As above. | | `terminal/kill` | S | ❌ | ❌ | ❌ | As above. | | `terminal/release` | S | ❌ | ❌ | ❌ | As above. | -| `elicitation/create` · `elicitation/complete` | U | ❌ | ✅ | ⚠️ | Structured user-input forms. Claude calls the `unstable_*` elicitation methods (to surface MCP server elicitations); Codex does NOT — its `CodexElicitationHandler` maps elicitations onto `session/request_permission` instead. | +| `elicitation/create` · `elicitation/complete` | U | ⚠️ | ✅ | ⚠️ | The bridge drives `unstable_createElicitation` for `ask_user_question` form prompts (session-scoped, no URL-mode flow yet). Claude calls the `unstable_*` elicitation methods for MCP server elicitations; Codex maps elicitations onto `session/request_permission`. | ## 3. Capabilities @@ -140,7 +140,7 @@ The bridge rejects unsupported prompt blocks rather than silently dropping them Ranked by how commonly the reference adapters ship them and how much UX they unlock: -1. **Permission gate** — `session/request_permission` + permission options. Tracked `TODO(rfc010-permission-gate)`; the reverse map is already wired. Foundational, and a prerequisite for modes. +1. **Permission gate** — `session/request_permission` + permission options. Tracked `TODO(rfc010-permission-gate)`; the reverse map is already wired and shared with `ask_user_question` routing. Foundational, and a prerequisite for modes. 2. **Session lifecycle** — `session/list` + `session/delete` (the persistence layer already lists), then `session/resume` / `session/close`. 3. **Modes / config options / model selection** — coupled to the permission gate. 4. **Agent plan** (`sessionUpdate: 'plan'`) — surface the loop's plan as structured entries. diff --git a/packages/ui/acp/package.json b/packages/ui/acp/package.json index 6973dc5e20..4220f4da52 100644 --- a/packages/ui/acp/package.json +++ b/packages/ui/acp/package.json @@ -32,6 +32,7 @@ "@deepseek-ai/dsh-session": "^0.0.1", "@deepseek-ai/dsh-session-persistence": "^0.0.1", "@deepseek-ai/dsh-tools": "^0.0.1", + "@deepseek-ai/dsh-user-interaction": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "devDependencies": { @@ -45,6 +46,8 @@ "@deepseek-ai/dsh-system-prompt": "workspace:^", "@deepseek-ai/dsh-tool-bash": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", + "@deepseek-ai/dsh-tool-ask-user": "workspace:^", + "@deepseek-ai/dsh-user-interaction": "workspace:^", "cordis": "^4.0.0-rc.6" } } diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index ec79e97443..7ab9aeac09 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -47,6 +47,9 @@ import { type AuthenticateRequest, type CancelNotification, type ContentBlock as AcpContentBlock, + type CreateElicitationRequest, + type ElicitationContentValue, + type EnumOption, type InitializeRequest, type InitializeResponse, type LoadSessionRequest, @@ -69,6 +72,12 @@ import type { ToolCallKind, ToolCallPresentation, ToolRegistry, ToolResultPresen // Side-effect type import: declaration-merges `ctx.sessionPersistence` onto // Context (the bridge injects it and reads `list()` for load cwd validation). import type {} from '@deepseek-ai/dsh-session-persistence' +import { + UserInteractionError, + type AskUserQuestionAnswer, + type AskUserQuestionOption, + type AskUserQuestionRequest, +} from '@deepseek-ai/dsh-user-interaction' import { acpPromptToText, harnessBlockToAcpContent, @@ -82,7 +91,7 @@ export const name = 'acp' // because `initialize` advertises `loadSession: true`. `tools` lets a tool own // how its calls render (`presentCall`/`presentResult`); the bridge looks up the // definition by name and falls back to a generic presentation when absent. -export const inject = ['agents', 'sessions', 'sessionPersistence', 'tools'] +export const inject = ['agents', 'sessions', 'sessionPersistence', 'tools', 'userInteraction'] /** * Build an ACP "invalid params" error whose human detail rides in the message. @@ -109,6 +118,119 @@ function sameWorkspaceCwd(left: string, right: string): boolean { return resolvePath(left) === resolvePath(right) } +function optionAnswer(option: AskUserQuestionOption): string { + return option.value ?? option.label +} + +function orderedOptions(options: readonly AskUserQuestionOption[] | undefined): AskUserQuestionOption[] { + return [...(options ?? [])].sort((a, b) => Number(Boolean(b.recommended)) - Number(Boolean(a.recommended))) +} + +function optionDescription(option: AskUserQuestionOption): string { + return option.description === undefined + ? option.label + : `${option.label}: ${option.description}` +} + +function selectedOption( + options: readonly AskUserQuestionOption[], + answer: string, +): AskUserQuestionOption | undefined { + return options.find(option => optionAnswer(option) === answer) +} + +function requireStringContent( + content: Record | null | undefined, + key: string, +): string | undefined { + const value = content?.[key] + return typeof value === 'string' && value.trim().length > 0 ? value : undefined +} + +function askAbortError(): UserInteractionError { + return new UserInteractionError('ask_user_question was aborted before the user answered', 'ASK_ABORTED') +} + +function withAbort(promise: Promise, signal: AbortSignal | undefined): Promise { + if (signal === undefined) return promise + if (signal.aborted) return Promise.reject(askAbortError()) + return new Promise((resolve, reject) => { + const onAbort = (): void => { + signal.removeEventListener('abort', onAbort) + reject(askAbortError()) + } + signal.addEventListener('abort', onAbort, { once: true }) + promise.then( + (value) => { + signal.removeEventListener('abort', onAbort) + resolve(value) + }, + (error: unknown) => { + signal.removeEventListener('abort', onAbort) + reject(new Error(String(error), { cause: error })) + }, + ) + }) +} + +function elicitationForQuestion( + sessionId: SessionId, + request: AskUserQuestionRequest, + options: AskUserQuestionOption[], +): CreateElicitationRequest { + const allowCustom = options.length === 0 || (request.allowCustom ?? true) + const title = request.header ?? 'Question' + if (options.length === 0) { + return { + sessionId, + mode: 'form', + message: request.question, + requestedSchema: { + type: 'object', + title, + properties: { + answer: { type: 'string', title: request.question }, + }, + required: ['answer'], + }, + } + } + + const choiceOptions: EnumOption[] = options.map(option => ({ + const: optionAnswer(option), + title: optionDescription(option), + })) + const recommended = options.find(option => option.recommended) + return { + sessionId, + mode: 'form', + message: request.question, + requestedSchema: { + type: 'object', + title, + properties: { + choice: { + type: 'string', + title: request.question, + description: allowCustom ? 'Choose one option, or fill a custom answer below.' : 'Choose one option.', + oneOf: choiceOptions, + ...recommended !== undefined ? { default: optionAnswer(recommended) } : {}, + }, + ...allowCustom + ? { + custom_answer: { + type: 'string' as const, + title: 'Custom answer', + description: 'Optional free-form answer. Leave empty to use the selected option.', + }, + } + : {}, + }, + required: allowCustom ? [] : ['choice'], + }, + } +} + /** Plugin config: the agent template ACP sessions are created from. */ export interface AcpConfig { /** Model name for created agents (must have a registered adapter). */ @@ -224,6 +346,7 @@ export function apply(ctx: Context, config: AcpConfig): void { const sessionPersistence = ctx.sessionPersistence const logger = ctx.logger const tools = ctx.tools + const userInteraction = ctx.userInteraction // A new ToolPresenter per session (and a throwaway per load replay), each given // this warn sink so a throwing tool presenter is logged, not propagated. const makePresenter = (): ToolPresenter => new ToolPresenter(tools, (message) => { logger.warn(message) }) @@ -254,6 +377,37 @@ export function apply(ctx: Context, config: AcpConfig): void { // `notify` never observes it unset — no undefined guard needed. let conn: AgentSideConnection + userInteraction.registerProvider({ + async ask(request: AskUserQuestionRequest): Promise { + if (request.agent === undefined) { + throw new UserInteractionError('ACP user questions must come from an agent-owned request', 'NO_AGENT') + } + const sessionId = bySession.get(request.agent) + if (sessionId === undefined) { + throw new UserInteractionError('ACP user question has no matching session', 'NO_SESSION') + } + const options = orderedOptions(request.options) + const response = await withAbort(conn.unstable_createElicitation( + elicitationForQuestion(sessionId, request, options), + ), request.signal).catch((error: unknown) => { + if (error instanceof UserInteractionError) throw error + throw new UserInteractionError('ACP elicitation request failed', 'ASK_FAILED', { cause: error }) + }) + if (response.action !== 'accept') { + throw new UserInteractionError('ask_user_question was cancelled by the user', 'ASK_CANCELLED') + } + const customAnswer = requireStringContent(response.content, 'custom_answer') + if (customAnswer !== undefined) return { answer: customAnswer } + + const answer = requireStringContent(response.content, options.length === 0 ? 'answer' : 'choice') + if (answer === undefined) { + throw new UserInteractionError('ask_user_question returned no answer', 'NO_ANSWER') + } + const option = selectedOption(options, answer) + return option === undefined ? { answer } : { answer, option } + }, + }) + /** * Reject any RPC after the bridge has torn down. The `AgentSideConnection` * receive loop can outlive the plugin fiber — under an ACP-only HMR reload the diff --git a/packages/ui/acp/tests/bridge.spec.ts b/packages/ui/acp/tests/bridge.spec.ts index e9ebca8d62..602b355b6f 100644 --- a/packages/ui/acp/tests/bridge.spec.ts +++ b/packages/ui/acp/tests/bridge.spec.ts @@ -4,7 +4,7 @@ import { tmpdir } from 'node:os' import { join } from 'node:path' import { PROTOCOL_VERSION } from '@agentclientprotocol/sdk' import { AgentId } from '@deepseek-ai/dsh-agent' -import { makeBridgeHarness, textResponse, type BridgeHarness } from './harness.ts' +import { makeBridgeHarness, textResponse, toolCallResponse, type BridgeHarness } from './harness.ts' /** * End-to-end bridge specs over an in-memory transport: a real @@ -53,6 +53,183 @@ describe('acp bridge', () => { expect(text).toBe('hello there') }) + it('routes ask_user_question through ACP form elicitation and continues with the selected option', async () => { + harness = await makeBridgeHarness({ + storageDir, + withAskUser: true, + script: [ + toolCallResponse('ask-1', 'ask_user_question', { + header: 'Project config', + question: 'Which language should I use?', + options: [ + { label: 'TypeScript', value: 'ts', description: 'Good for UI apps' }, + { label: 'Python', value: 'py', description: 'Good for scripts', recommended: true }, + ], + allow_custom: false, + }), + textResponse('Python it is.'), + ], + }) + harness.onElicitation = () => ({ action: 'accept', content: { choice: 'py' } }) + await harness.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + const { sessionId } = await harness.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + + const result = await harness.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'ask me' }] }) + + expect(result.stopReason).toBe('end_turn') + expect(harness.elicitationRequests).toHaveLength(1) + expect(harness.elicitationRequests[0]).toMatchObject({ + sessionId, + mode: 'form', + message: 'Which language should I use?', + requestedSchema: { + title: 'Project config', + properties: { + choice: { + default: 'py', + oneOf: [ + { const: 'py', title: 'Python: Good for scripts' }, + { const: 'ts', title: 'TypeScript: Good for UI apps' }, + ], + }, + }, + required: ['choice'], + }, + }) + const toolResult = harness.ctx.agents.get(AgentId(sessionId))!.session.events.find(event => event.type === 'tool/result') + expect(JSON.stringify(toolResult)).toContain('py') + }) + + it('routes optionless ask_user_question through an ACP free-form answer field', async () => { + harness = await makeBridgeHarness({ + storageDir, + withAskUser: true, + script: [ + toolCallResponse('ask-1', 'ask_user_question', { + question: 'What should I name it?', + allow_custom: false, + }), + textResponse('Name recorded.'), + ], + }) + harness.onElicitation = () => ({ action: 'accept', content: { answer: 'apollo' } }) + await harness.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + const { sessionId } = await harness.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + + await harness.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'ask me' }] }) + + expect(harness.elicitationRequests[0]).toMatchObject({ + requestedSchema: { + properties: { answer: { type: 'string', title: 'What should I name it?' } }, + required: ['answer'], + }, + }) + const toolResult = harness.ctx.agents.get(AgentId(sessionId))!.session.events.find(event => event.type === 'tool/result') + expect(JSON.stringify(toolResult)).toContain('apollo') + }) + + it('supports ACP custom answers alongside choices', async () => { + harness = await makeBridgeHarness({ storageDir, withAskUser: true }) + harness.onElicitation = () => ({ action: 'accept', content: { custom_answer: 'Use Zig' } }) + await harness.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + const { sessionId } = await harness.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + const agent = harness.ctx.agents.get(AgentId(sessionId))! + + const result = await harness.ctx.userInteraction.ask({ + agent, + question: 'Which language?', + options: [{ label: 'TypeScript' }], + }) + + expect(result).toEqual({ answer: 'Use Zig' }) + expect(harness.elicitationRequests[0]).toMatchObject({ + requestedSchema: { + properties: { + choice: { + description: 'Choose one option, or fill a custom answer below.', + oneOf: [{ const: 'TypeScript', title: 'TypeScript' }], + }, + custom_answer: { type: 'string' }, + }, + required: [], + }, + }) + }) + + it('returns raw ACP answers when they do not match a provided option', async () => { + harness = await makeBridgeHarness({ storageDir, withAskUser: true }) + harness.onElicitation = () => ({ action: 'accept', content: { choice: 'something else' } }) + await harness.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + const { sessionId } = await harness.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + const agent = harness.ctx.agents.get(AgentId(sessionId))! + + await expect(harness.ctx.userInteraction.ask({ + agent, + question: 'Pick', + options: [{ label: 'A', value: 'a' }], + allowCustom: false, + })).resolves.toEqual({ answer: 'something else' }) + }) + + it('reports ACP ask-user routing and answer failures as structured errors', async () => { + harness = await makeBridgeHarness({ storageDir, withAskUser: true }) + await harness.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + const { sessionId } = await harness.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + const agent = harness.ctx.agents.get(AgentId(sessionId))! + + await expect(harness.ctx.userInteraction.ask({ question: 'No agent?' })) + .rejects.toMatchObject({ name: 'UserInteractionError', code: 'NO_AGENT' }) + await expect(harness.ctx.userInteraction.ask({ agent: { id: 'other' } as typeof agent, question: 'No session?' })) + .rejects.toMatchObject({ code: 'NO_SESSION' }) + + harness.onElicitation = () => ({ action: 'cancel' }) + await expect(harness.ctx.userInteraction.ask({ agent, question: 'Cancel?' })) + .rejects.toMatchObject({ code: 'ASK_CANCELLED' }) + + harness.onElicitation = () => ({ action: 'accept', content: {} }) + await expect(harness.ctx.userInteraction.ask({ agent, question: 'Empty?' })) + .rejects.toMatchObject({ code: 'NO_ANSWER' }) + + harness.onElicitation = () => { throw new Error('client boom') } + await expect(harness.ctx.userInteraction.ask({ agent, question: 'Client fails?', signal: new AbortController().signal })) + .rejects.toMatchObject({ code: 'ASK_FAILED' }) + }) + + it('aborts ACP ask-user requests before and while waiting for elicitation', async () => { + harness = await makeBridgeHarness({ storageDir, withAskUser: true }) + await harness.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + const { sessionId } = await harness.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + const agent = harness.ctx.agents.get(AgentId(sessionId))! + + const alreadyAborted = new AbortController() + alreadyAborted.abort() + await expect(harness.ctx.userInteraction.ask({ agent, question: 'Already?', signal: alreadyAborted.signal })) + .rejects.toMatchObject({ code: 'ASK_ABORTED' }) + + let abortedReads = 0 + const racingAbort = { + get aborted() { return abortedReads++ > 0 }, + addEventListener() {}, + removeEventListener() {}, + dispatchEvent() { return false }, + onabort: null, + reason: undefined, + throwIfAborted() {}, + } as AbortSignal + await expect(harness.ctx.userInteraction.ask({ agent, question: 'Raced?', signal: racingAbort })) + .rejects.toMatchObject({ code: 'ASK_ABORTED' }) + + let release: ((value: { action: 'accept'; content: { answer: string } }) => void) | undefined + harness.onElicitation = () => new Promise((resolve) => { release = resolve }) + const pendingAbort = new AbortController() + const ask = harness.ctx.userInteraction.ask({ agent, question: 'Pending?', signal: pendingAbort.signal }) + await new Promise(resolve => setImmediate(resolve)) + pendingAbort.abort() + + await expect(ask).rejects.toMatchObject({ code: 'ASK_ABORTED' }) + release?.({ action: 'accept', content: { answer: 'too late' } }) + }) + it('allows multiple concurrent sessions, each with a distinct id', async () => { harness = await makeBridgeHarness({ storageDir, script: [] }) await harness.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) diff --git a/packages/ui/acp/tests/harness.ts b/packages/ui/acp/tests/harness.ts index 4f6b5ac17a..a49b5c75f9 100644 --- a/packages/ui/acp/tests/harness.ts +++ b/packages/ui/acp/tests/harness.ts @@ -25,11 +25,15 @@ import { ndJsonStream, type Agent as AcpAgent, type Client, + type CreateElicitationRequest, + type CreateElicitationResponse, type RequestPermissionRequest, type RequestPermissionResponse, type SessionNotification, type Stream, } from '@agentclientprotocol/sdk' +import UserInteractionService from '@deepseek-ai/dsh-user-interaction' +import * as ToolAskUser from '@deepseek-ai/dsh-tool-ask-user' import * as AcpPlugin from '../src/index.ts' import { type AcpConfig } from '../src/index.ts' @@ -117,6 +121,10 @@ export interface BridgeHarness { permissionRequests: RequestPermissionRequest[] /** Decide each permission request's outcome (default: cancelled). */ onPermission: (req: RequestPermissionRequest) => RequestPermissionResponse + /** Elicitation requests the bridge issued for ask_user_question. */ + elicitationRequests: CreateElicitationRequest[] + /** Decide each elicitation response (default: cancel). */ + onElicitation: (req: CreateElicitationRequest) => CreateElicitationResponse | Promise /** If set, the client's sessionUpdate throws this (tests notify error path). */ onSessionUpdateError: (() => void) | undefined /** @@ -158,6 +166,8 @@ export async function makeBridgeHarness(options: { * implementation over a mock in tests"). */ withBash?: boolean + /** Plug the REAL `ask_user_question` tool and ACP user-interaction provider. */ + withAskUser?: boolean } = { storageDir: '' }): Promise { const adapter = new MockAdapter(options.script ?? []) @@ -169,6 +179,10 @@ export async function makeBridgeHarness(options: { await ctx.plugin(AgentRegistry) await ctx.plugin(AgentLoop, { agents: [] }) await ctx.plugin(SessionPersistenceJsonl, { root: options.storageDir }) + await ctx.plugin(UserInteractionService) + if (options.withAskUser) { + await ctx.plugin(ToolAskUser) + } if (options.withBash) { await ctx.plugin(LocalBashExecutor, { timeoutMs: 10_000 }) await ctx.plugin(ToolBash) @@ -197,6 +211,7 @@ export async function makeBridgeHarness(options: { const updates: CapturedUpdate[] = [] const sessionUpdates: { sessionId: string; update: CapturedUpdate }[] = [] const permissionRequests: RequestPermissionRequest[] = [] + const elicitationRequests: CreateElicitationRequest[] = [] const harness: BridgeHarness = { ctx, adapter, @@ -204,6 +219,8 @@ export async function makeBridgeHarness(options: { sessionUpdates, permissionRequests, onPermission: () => ({ outcome: { outcome: 'cancelled' } }), + elicitationRequests, + onElicitation: () => ({ action: 'cancel' }), onSessionUpdateError: undefined, client: undefined as unknown as ClientSideConnection, acpFiber: undefined as unknown as BridgeHarness['acpFiber'], @@ -229,6 +246,10 @@ export async function makeBridgeHarness(options: { permissionRequests.push(params) return Promise.resolve(harness.onPermission(params)) }, + unstable_createElicitation(params: CreateElicitationRequest): Promise { + elicitationRequests.push(params) + return Promise.resolve(harness.onElicitation(params)) + }, }) // Wire the bridge (agent side) and the client (test side). The test config diff --git a/packages/ui/acp/tsconfig.json b/packages/ui/acp/tsconfig.json index 5989363d7f..9e24fa0f7a 100644 --- a/packages/ui/acp/tsconfig.json +++ b/packages/ui/acp/tsconfig.json @@ -29,6 +29,9 @@ { "path": "../../core/tools" }, + { + "path": "../../core/user-interaction" + }, { "path": "../../session-persistence/session-persistence" } diff --git a/packages/ui/stdio-agent/tests/built-bin.e2e.ts b/packages/ui/stdio-agent/tests/built-bin.e2e.ts index d53296929d..b28bf382ad 100644 --- a/packages/ui/stdio-agent/tests/built-bin.e2e.ts +++ b/packages/ui/stdio-agent/tests/built-bin.e2e.ts @@ -34,7 +34,7 @@ const stdioBin = join(repoRoot, 'packages/ui/stdio-agent/lib/bin.js') // to the built `lib/` (package.json `main`), exactly as an installed dep would. const dshPackages = [ 'core/agent-core', 'core/agent', 'core/session', 'core/system-prompt', - 'core/tools', 'core/user-interaction', 'core/tool-ask-user', + 'core/tools', 'core/user-interaction', 'ui/tool-ask-user', 'core/agent-loop', 'llm/llm', 'bash/bash', 'bash/bash-local', 'bash/tool-bash', 'support/invariants', 'support/ui-stdio', 'session-persistence/session-persistence', diff --git a/packages/ui/stdio-agent/tsconfig.json b/packages/ui/stdio-agent/tsconfig.json index 6cb6130fb7..9cd7f8d998 100644 --- a/packages/ui/stdio-agent/tsconfig.json +++ b/packages/ui/stdio-agent/tsconfig.json @@ -33,7 +33,7 @@ "path": "../../core/user-interaction" }, { - "path": "../../core/tool-ask-user" + "path": "../tool-ask-user" }, { "path": "../../session-persistence/session-persistence-jsonl" diff --git a/packages/core/tool-ask-user/README.md b/packages/ui/tool-ask-user/README.md similarity index 100% rename from packages/core/tool-ask-user/README.md rename to packages/ui/tool-ask-user/README.md diff --git a/packages/core/tool-ask-user/package.json b/packages/ui/tool-ask-user/package.json similarity index 100% rename from packages/core/tool-ask-user/package.json rename to packages/ui/tool-ask-user/package.json diff --git a/packages/core/tool-ask-user/src/index.ts b/packages/ui/tool-ask-user/src/index.ts similarity index 100% rename from packages/core/tool-ask-user/src/index.ts rename to packages/ui/tool-ask-user/src/index.ts diff --git a/packages/core/tool-ask-user/tests/tool-ask-user.spec.ts b/packages/ui/tool-ask-user/tests/tool-ask-user.spec.ts similarity index 93% rename from packages/core/tool-ask-user/tests/tool-ask-user.spec.ts rename to packages/ui/tool-ask-user/tests/tool-ask-user.spec.ts index ca929533ff..b6fd9d92e4 100644 --- a/packages/core/tool-ask-user/tests/tool-ask-user.spec.ts +++ b/packages/ui/tool-ask-user/tests/tool-ask-user.spec.ts @@ -126,6 +126,21 @@ describe('ask_user_question tool', () => { expect(seen[0]).toMatchObject({ header: 'Confirm', agent }) }) + it('returns structured user-interaction errors through tool execution', async () => { + const ctx = await setup() + + const result = await ctx.tools.execute({ + callId: CallId('ask-no-provider'), + name: 'ask_user_question', + arguments: { question: 'Continue?' }, + }) + + expect(result).toMatchObject({ + isError: true, + error: { name: 'UserInteractionError', code: 'NO_PROVIDER' }, + }) + }) + it('uses an option label when the selected option has no explicit value', async () => { const ctx = await setup() ctx.userInteraction.registerProvider({ diff --git a/packages/core/tool-ask-user/tsconfig.json b/packages/ui/tool-ask-user/tsconfig.json similarity index 74% rename from packages/core/tool-ask-user/tsconfig.json rename to packages/ui/tool-ask-user/tsconfig.json index f51b8c4495..06805c0b8f 100644 --- a/packages/core/tool-ask-user/tsconfig.json +++ b/packages/ui/tool-ask-user/tsconfig.json @@ -21,16 +21,16 @@ "path": "../../llm/llm" }, { - "path": "../agent" + "path": "../../core/agent" }, { - "path": "../system-prompt" + "path": "../../core/system-prompt" }, { - "path": "../tools" + "path": "../../core/tools" }, { - "path": "../user-interaction" + "path": "../../core/user-interaction" } ] } diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index c6554ad952..78e26a0864 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -221,27 +221,6 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) - packages/core/tool-ask-user: - devDependencies: - '@deepseek-ai/dsh-agent': - specifier: workspace:^ - version: link:../agent - '@deepseek-ai/dsh-llm': - specifier: workspace:^ - version: link:../../llm/llm - '@deepseek-ai/dsh-system-prompt': - specifier: workspace:^ - version: link:../system-prompt - '@deepseek-ai/dsh-tools': - specifier: workspace:^ - version: link:../tools - '@deepseek-ai/dsh-user-interaction': - specifier: workspace:^ - version: link:../user-interaction - cordis: - specifier: ^4.0.0-rc.6 - version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) - packages/core/tools: devDependencies: '@deepseek-ai/dsh-agent': @@ -262,6 +241,9 @@ importers: '@deepseek-ai/dsh-agent': specifier: workspace:^ version: link:../agent + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -651,12 +633,18 @@ importers: '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../../core/system-prompt + '@deepseek-ai/dsh-tool-ask-user': + specifier: workspace:^ + version: link:../tool-ask-user '@deepseek-ai/dsh-tool-bash': specifier: workspace:^ version: link:../../bash/tool-bash '@deepseek-ai/dsh-tools': specifier: workspace:^ version: link:../../core/tools + '@deepseek-ai/dsh-user-interaction': + specifier: workspace:^ + version: link:../../core/user-interaction cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -678,6 +666,12 @@ importers: '@deepseek-ai/dsh-session-persistence-jsonl': specifier: workspace:^ version: link:../../session-persistence/session-persistence-jsonl + '@deepseek-ai/dsh-tool-ask-user': + specifier: workspace:^ + version: link:../tool-ask-user + '@deepseek-ai/dsh-user-interaction': + specifier: workspace:^ + version: link:../../core/user-interaction cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@vendor+include)(@cordisjs/plugin-loader@vendor+loader) @@ -710,7 +704,7 @@ importers: version: link:../../session-persistence/session-persistence-jsonl '@deepseek-ai/dsh-tool-ask-user': specifier: workspace:^ - version: link:../../core/tool-ask-user + version: link:../tool-ask-user '@deepseek-ai/dsh-ui-stdio': specifier: workspace:^ version: link:../../support/ui-stdio @@ -724,6 +718,27 @@ importers: specifier: ^3.17.0 version: 3.18.0 + packages/ui/tool-ask-user: + devDependencies: + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../../core/agent + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + '@deepseek-ai/dsh-system-prompt': + specifier: workspace:^ + version: link:../../core/system-prompt + '@deepseek-ai/dsh-tools': + specifier: workspace:^ + version: link:../../core/tools + '@deepseek-ai/dsh-user-interaction': + specifier: workspace:^ + version: link:../../core/user-interaction + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/util/brand: devDependencies: cordis: diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index 7872ec8620..c4007ed3eb 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -30,6 +30,12 @@ { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolExecution", "source": "packages/core/tools/src/index.ts" }, { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolExecutionResult", "source": "packages/core/tools/src/index.ts" }, + { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionOption", "source": "packages/core/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionRequest", "source": "packages/core/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionAnswer", "source": "packages/core/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "UserInteractionProvider", "source": "packages/core/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "UserInteractionError", "source": "packages/core/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/bash.md", "symbol": "BashExecRequest", "source": "packages/bash/bash/src/types.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "BashExecSpec", "source": "packages/bash/bash/src/types.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "BashRunResult", "source": "packages/bash/bash/src/types.ts" }, diff --git a/tsconfig.build.json b/tsconfig.build.json index bd6073825d..ff9af414a4 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -20,7 +20,7 @@ { "path": "./packages/core/agent" }, { "path": "./packages/core/user-interaction" }, { "path": "./packages/core/tools" }, - { "path": "./packages/core/tool-ask-user" }, + { "path": "./packages/ui/tool-ask-user" }, { "path": "./packages/core/agent-loop" }, { "path": "./packages/core/agent-core" }, { "path": "./packages/bash/bash" }, diff --git a/tsconfig.json b/tsconfig.json index 59c69f9684..9f250e9623 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -31,7 +31,7 @@ { "path": "./packages/core/agent" }, { "path": "./packages/core/user-interaction" }, { "path": "./packages/core/tools" }, - { "path": "./packages/core/tool-ask-user" }, + { "path": "./packages/ui/tool-ask-user" }, { "path": "./packages/core/agent-loop" }, { "path": "./packages/core/agent-core" }, { "path": "./packages/bash/bash" }, From ca4ebb67dce527111f58dc5793a3a0cdc42285d7 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Wed, 1 Jul 2026 19:04:43 +0800 Subject: [PATCH 004/232] Fix CI demo smoke session assertion --- .github/workflows/ci.yml | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 9064a38cea..6353106dc6 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -89,9 +89,9 @@ jobs: echo "$out" echo "$out" | grep -q '\[tool call\] echo({"text":"ci smoke"})' echo "$out" | grep -q '\[tool result\] ECHO: CI SMOKE' - # The JSONL backend (root ./.sessions, no cwd → _no-cwd bucket) writes a - # per-run session log named main-session-.jsonl. Assert one exists. - ls .sessions/_no-cwd/main-session-*.jsonl >/dev/null + # The stdio app records process.cwd(); the JSONL backend stores that + # session under the cwd bucket as main-session-.jsonl. + test -n "$(find .sessions -path '.sessions/cwd-*/main-session-*.jsonl' -type f -print -quit)" rm -rf .sessions # The published `bin` is `lib/bin.js`, run under plain `node` by a real From 2943d0303ce1da92b7d954cfd09c7769178a0d7e Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Wed, 1 Jul 2026 19:57:52 +0800 Subject: [PATCH 005/232] Address skill review findings --- docs/cordis-catalog/events-and-services.md | 2 +- packages/core/skill/src/index.ts | 19 +++++-- packages/core/skill/tests/skill.spec.ts | 66 ++++++++++++++++++++++ 3 files changed, 82 insertions(+), 5 deletions(-) diff --git a/docs/cordis-catalog/events-and-services.md b/docs/cordis-catalog/events-and-services.md index 6fc641db67..0247aaf945 100644 --- a/docs/cordis-catalog/events-and-services.md +++ b/docs/cordis-catalog/events-and-services.md @@ -441,7 +441,7 @@ async get(name: string, options: SkillLookupOptions = {}): Promise ``` -Source: [`packages/core/skill/src/index.ts:106`](../../packages/core/skill/src/index.ts) +Source: [`packages/core/skill/src/index.ts:107`](../../packages/core/skill/src/index.ts) ### `ctx.subagents` — `SubagentService` diff --git a/packages/core/skill/src/index.ts b/packages/core/skill/src/index.ts index 631d84a415..4f6fc4129b 100644 --- a/packages/core/skill/src/index.ts +++ b/packages/core/skill/src/index.ts @@ -18,6 +18,7 @@ import type {} from '@deepseek-ai/dsh-agent' const SKILL_NAME = /^[a-z0-9]+(?:-[a-z0-9]+)*$/ const MAX_PROMPT_FIELD_LENGTH = 500 +const MAX_COLLECT_CACHE_ENTRIES = 128 export function isSkillName(name: string): boolean { return SKILL_NAME.test(name) @@ -189,6 +190,10 @@ export class SkillService extends Service { const collected = this.collectFresh(roots) this.collectCache.set(key, collected) + if (this.collectCache.size > MAX_COLLECT_CACHE_ENTRIES) { + const oldest = this.collectCache.keys().next().value + if (oldest !== undefined) this.collectCache.delete(oldest) + } return collected } @@ -334,10 +339,10 @@ function parseFrontmatter(raw: string): { data: Record; body: s const end = raw.indexOf('\n---', 4) if (end < 0) return undefined const yaml = raw.slice(4, end) - const bodyStart = raw.indexOf('\n', end + 4) const parsed = parseYaml(yaml) as unknown if (typeof parsed !== 'object' || parsed === null || Array.isArray(parsed)) return undefined - return { data: parsed as Record, body: bodyStart < 0 ? '' : raw.slice(bodyStart + 1) } + const body = raw.slice(end + 4) + return { data: parsed as Record, body: body.startsWith('\n') ? body.slice(1) : body } } async function findProjectRoot(cwd: string): Promise { @@ -379,8 +384,10 @@ function compareSummary(left: SkillSummary, right: SkillSummary): number { function promptLine(value: string): string { const normalized = value.replaceAll(/\s+/g, ' ').trim() - if (normalized.length <= MAX_PROMPT_FIELD_LENGTH) return normalized - return `${normalized.slice(0, MAX_PROMPT_FIELD_LENGTH - 3)}...` + const truncated = normalized.length <= MAX_PROMPT_FIELD_LENGTH + ? normalized + : `${normalized.slice(0, MAX_PROMPT_FIELD_LENGTH - 3)}...` + return escapeText(truncated) } function stringField(data: Record, key: string): string | undefined { @@ -410,6 +417,10 @@ function escapeAttr(value: string): string { return value.replaceAll('&', '&').replaceAll('"', '"').replaceAll('<', '<') } +function escapeText(value: string): string { + return value.replaceAll('&', '&').replaceAll('<', '<').replaceAll('>', '>') +} + function collectCacheKey(roots: { project: SkillRoot[]; shared: SkillRoot[] }, runtimeRevision: number): string { return JSON.stringify({ runtimeRevision, roots }) } diff --git a/packages/core/skill/tests/skill.spec.ts b/packages/core/skill/tests/skill.spec.ts index 659e4c8b74..e9d558c6de 100644 --- a/packages/core/skill/tests/skill.spec.ts +++ b/packages/core/skill/tests/skill.spec.ts @@ -128,6 +128,24 @@ describe('SkillService', () => { expect(await ctx.skills.get('Bad_Name')).toBeUndefined() }) + it('keeps skill body text that begins immediately after the closing frontmatter delimiter', async () => { + const home = await tempDir('skill-frontmatter-body') + const root = join(home, '.dsh/skills') + await mkdir(root, { recursive: true }) + await writeFile(join(root, 'tight-body.md'), [ + '---', + 'name: tight-body', + 'description: Tight body', + '---First line must survive.', + 'Second line.', + ].join('\n')) + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + expect((await ctx.skills.get('tight-body'))?.content).toBe('First line must survive.\nSecond line.') + }) + it('renders no model listing when no model-invocable skills exist', async () => { const home = await tempDir('skill-empty-listing') const ctx = new Context() @@ -243,6 +261,29 @@ describe('SkillService', () => { expect((await ctx.skills.get('long-skill'))?.description).toBe(longDescription) }) + it('escapes prompt listing text fields without changing stored skill content', async () => { + const home = await tempDir('skill-prompt-escape') + const root = join(home, '.dsh/skills') + await mkdir(root, { recursive: true }) + await writeFile(join(root, 'escaped-skill.md'), [ + '---', + 'name: escaped-skill', + 'description: Use safely', + 'whenToUse: Handle & marker', + '---', + 'Full body.', + ].join('\n')) + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + const listing = await ctx.skills.renderModelListing() + expect(listing).toContain('description: Use </available_skills><oops> safely') + expect(listing).toContain('whenToUse: Handle <tag> & marker') + expect(listing).not.toContain('description: Use safely') + expect((await ctx.skills.get('escaped-skill'))?.description).toBe('Use safely') + }) + it('adds skill guidance through the agent/request waterfall without including bodies', async () => { const home = await tempDir('skill-guidance') await writeSkill(join(home, '.dsh/skills'), 'research-helper', 'Research helper', 'Long body that must not be listed.') @@ -301,6 +342,31 @@ describe('SkillService', () => { expect(await ctx.skills.list()).toEqual([]) }) + it('bounds discovery cache entries across many project roots', async () => { + const home = await tempDir('skill-cache-bound-home') + const projects = await Promise.all(Array.from({ length: 129 }, async (_, index) => { + const project = await tempDir(`skill-cache-bound-project-${index}`) + await mkdir(join(project, '.git'), { recursive: true }) + await writeSkill(join(project, '.dsh/skills'), `project-${index}`, `Project ${index}`) + return project + })) + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + const firstProject = projects[0] + if (firstProject === undefined) throw new Error('expected at least one project') + expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['project-0']) + await writeSkill(join(firstProject, '.dsh/skills'), 'late-project-0', 'Late project 0') + expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['project-0']) + + for (const project of projects.slice(1)) { + await ctx.skills.list({ cwd: project }) + } + + expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['late-project-0', 'project-0']) + }) + it('removes runtime registered skills when the returned disposer is called', async () => { const home = await tempDir('skill-runtime-disposer') const ctx = new Context() From c276b246b4f838d88e19958ec4956163df7f08e2 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Wed, 1 Jul 2026 19:57:52 +0800 Subject: [PATCH 006/232] Address skill review findings --- docs/cordis-catalog/events-and-services.md | 2 +- packages/core/skill/src/index.ts | 19 ++++- packages/core/skill/tests/skill.spec.ts | 95 ++++++++++++++++++++++ 3 files changed, 111 insertions(+), 5 deletions(-) diff --git a/docs/cordis-catalog/events-and-services.md b/docs/cordis-catalog/events-and-services.md index 6fc641db67..0247aaf945 100644 --- a/docs/cordis-catalog/events-and-services.md +++ b/docs/cordis-catalog/events-and-services.md @@ -441,7 +441,7 @@ async get(name: string, options: SkillLookupOptions = {}): Promise ``` -Source: [`packages/core/skill/src/index.ts:106`](../../packages/core/skill/src/index.ts) +Source: [`packages/core/skill/src/index.ts:107`](../../packages/core/skill/src/index.ts) ### `ctx.subagents` — `SubagentService` diff --git a/packages/core/skill/src/index.ts b/packages/core/skill/src/index.ts index 631d84a415..204ca2e7e7 100644 --- a/packages/core/skill/src/index.ts +++ b/packages/core/skill/src/index.ts @@ -18,6 +18,7 @@ import type {} from '@deepseek-ai/dsh-agent' const SKILL_NAME = /^[a-z0-9]+(?:-[a-z0-9]+)*$/ const MAX_PROMPT_FIELD_LENGTH = 500 +const MAX_COLLECT_CACHE_ENTRIES = 128 export function isSkillName(name: string): boolean { return SKILL_NAME.test(name) @@ -189,6 +190,10 @@ export class SkillService extends Service { const collected = this.collectFresh(roots) this.collectCache.set(key, collected) + if (this.collectCache.size > MAX_COLLECT_CACHE_ENTRIES) { + const oldest = this.collectCache.keys().next() as IteratorYieldResult + this.collectCache.delete(oldest.value) + } return collected } @@ -334,10 +339,10 @@ function parseFrontmatter(raw: string): { data: Record; body: s const end = raw.indexOf('\n---', 4) if (end < 0) return undefined const yaml = raw.slice(4, end) - const bodyStart = raw.indexOf('\n', end + 4) const parsed = parseYaml(yaml) as unknown if (typeof parsed !== 'object' || parsed === null || Array.isArray(parsed)) return undefined - return { data: parsed as Record, body: bodyStart < 0 ? '' : raw.slice(bodyStart + 1) } + const body = raw.slice(end + 4) + return { data: parsed as Record, body: body.startsWith('\n') ? body.slice(1) : body } } async function findProjectRoot(cwd: string): Promise { @@ -379,8 +384,10 @@ function compareSummary(left: SkillSummary, right: SkillSummary): number { function promptLine(value: string): string { const normalized = value.replaceAll(/\s+/g, ' ').trim() - if (normalized.length <= MAX_PROMPT_FIELD_LENGTH) return normalized - return `${normalized.slice(0, MAX_PROMPT_FIELD_LENGTH - 3)}...` + const truncated = normalized.length <= MAX_PROMPT_FIELD_LENGTH + ? normalized + : `${normalized.slice(0, MAX_PROMPT_FIELD_LENGTH - 3)}...` + return escapeText(truncated) } function stringField(data: Record, key: string): string | undefined { @@ -410,6 +417,10 @@ function escapeAttr(value: string): string { return value.replaceAll('&', '&').replaceAll('"', '"').replaceAll('<', '<') } +function escapeText(value: string): string { + return value.replaceAll('&', '&').replaceAll('<', '<').replaceAll('>', '>') +} + function collectCacheKey(roots: { project: SkillRoot[]; shared: SkillRoot[] }, runtimeRevision: number): string { return JSON.stringify({ runtimeRevision, roots }) } diff --git a/packages/core/skill/tests/skill.spec.ts b/packages/core/skill/tests/skill.spec.ts index 659e4c8b74..e15187e16b 100644 --- a/packages/core/skill/tests/skill.spec.ts +++ b/packages/core/skill/tests/skill.spec.ts @@ -128,6 +128,24 @@ describe('SkillService', () => { expect(await ctx.skills.get('Bad_Name')).toBeUndefined() }) + it('keeps skill body text that begins immediately after the closing frontmatter delimiter', async () => { + const home = await tempDir('skill-frontmatter-body') + const root = join(home, '.dsh/skills') + await mkdir(root, { recursive: true }) + await writeFile(join(root, 'tight-body.md'), [ + '---', + 'name: tight-body', + 'description: Tight body', + '---First line must survive.', + 'Second line.', + ].join('\n')) + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + expect((await ctx.skills.get('tight-body'))?.content).toBe('First line must survive.\nSecond line.') + }) + it('renders no model listing when no model-invocable skills exist', async () => { const home = await tempDir('skill-empty-listing') const ctx = new Context() @@ -141,6 +159,24 @@ describe('SkillService', () => { expect(result.system).toBe('base') }) + it('supports default home root resolution without installing system skills', async () => { + const previousDshHome = process.env.DSH_HOME + const envHome = await tempDir('skill-env-home') + try { + process.env.DSH_HOME = join(envHome, '.dsh') + await new Context().plugin(SkillService, { installSystemSkills: false }) + + delete process.env.DSH_HOME + await new Context().plugin(SkillService, { installSystemSkills: false }) + } finally { + if (previousDshHome === undefined) { + delete process.env.DSH_HOME + } else { + process.env.DSH_HOME = previousDshHome + } + } + }) + it('installs system skills into the DSH home without overwriting existing files', async () => { const home = await tempDir('skill-install') const existing = join(home, '.dsh/skills/.system/dsh-plugin-creator/SKILL.md') @@ -158,6 +194,17 @@ describe('SkillService', () => { expect(await readFile(join(home, '.dsh/skills/.system/dsh-skill-creator/SKILL.md'), 'utf8')).toContain('dsh-skill-creator') }) + it('renders bundled system skill files with and without routing metadata', async () => { + const home = await tempDir('skill-install-render') + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) + await ctx.skills.list() + + expect(await readFile(join(home, '.dsh/skills/.system/dsh-plugin-creator/SKILL.md'), 'utf8')).not.toContain('whenToUse:') + expect(await readFile(join(home, '.dsh/skills/.system/dsh-skill-creator/SKILL.md'), 'utf8')).toContain('whenToUse:') + }) + it('degrades when bundled system skill installation fails', async () => { const home = await tempDir('skill-install-fail') await writeFile(join(home, '.dsh'), 'not a directory') @@ -243,6 +290,29 @@ describe('SkillService', () => { expect((await ctx.skills.get('long-skill'))?.description).toBe(longDescription) }) + it('escapes prompt listing text fields without changing stored skill content', async () => { + const home = await tempDir('skill-prompt-escape') + const root = join(home, '.dsh/skills') + await mkdir(root, { recursive: true }) + await writeFile(join(root, 'escaped-skill.md'), [ + '---', + 'name: escaped-skill', + 'description: Use safely', + 'whenToUse: Handle & marker', + '---', + 'Full body.', + ].join('\n')) + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + const listing = await ctx.skills.renderModelListing() + expect(listing).toContain('description: Use </available_skills><oops> safely') + expect(listing).toContain('whenToUse: Handle <tag> & marker') + expect(listing).not.toContain('description: Use safely') + expect((await ctx.skills.get('escaped-skill'))?.description).toBe('Use safely') + }) + it('adds skill guidance through the agent/request waterfall without including bodies', async () => { const home = await tempDir('skill-guidance') await writeSkill(join(home, '.dsh/skills'), 'research-helper', 'Research helper', 'Long body that must not be listed.') @@ -301,6 +371,31 @@ describe('SkillService', () => { expect(await ctx.skills.list()).toEqual([]) }) + it('bounds discovery cache entries across many project roots', async () => { + const home = await tempDir('skill-cache-bound-home') + const projects = await Promise.all(Array.from({ length: 129 }, async (_, index) => { + const project = await tempDir(`skill-cache-bound-project-${index}`) + await mkdir(join(project, '.git'), { recursive: true }) + await writeSkill(join(project, '.dsh/skills'), `project-${index}`, `Project ${index}`) + return project + })) + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + const firstProject = projects[0] + if (firstProject === undefined) throw new Error('expected at least one project') + expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['project-0']) + await writeSkill(join(firstProject, '.dsh/skills'), 'late-project-0', 'Late project 0') + expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['project-0']) + + for (const project of projects.slice(1)) { + await ctx.skills.list({ cwd: project }) + } + + expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['late-project-0', 'project-0']) + }) + it('removes runtime registered skills when the returned disposer is called', async () => { const home = await tempDir('skill-runtime-disposer') const ctx = new Context() From dafb81be7bf6dd2e60374838d61425a251787e42 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 5 Jul 2026 11:35:39 +0800 Subject: [PATCH 007/232] subagent: implement structured output for in-process backends MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The seam vocabulary (SubagentStartRequest.outputSchema, SubagentResult .structured) existed but no in-process backend honored it — spawn/fork advertised outputSchema: false. This lands the missing half: - dsh-tools gains a structured-output JSON Schema subset (json-schema.ts): StructuredOutputSchema, assertSupportedOutputSchema (rejects loud outside the enforced subset, every violation listed), validateStructuredValue (path-qualified issues, total). outputSchema's seam type becomes this raw JSON-Schema subset instead of the author-facing SchemaSpec DSL — the schema travels verbatim to the model as a forced tool's parameters. - dsh-subagent-inprocess gains the shared structured runtime: one global structured_output capture tool (placeholder parameters) + a prepend:true agent/request listener doing FINAL-REQUEST enforcement (strip for plain agents, per-run schema for structured children — survives downstream request-replacing listeners) + an agent/turn-continuation veto that stops a child's turn once captured (no wasted extra model step). Lifetime is refcounted by backends (plugin lifetime) AND live runs (start→settle). - startInProcessRun drives the capture: subset asserted before the child exists, instruction appended to the child's system prompt, clean-finish nudge loop (structuredNudgeRetries, backend Config, default 1), captured value on result.structured; a clean finish without a capture settles 'error' (never a silent success with a missing field). - spawn + fork flip outputSchema: true and inject 'tools'. --- docs/cordis-catalog/events.md | 6 +- docs/cordis-catalog/services.md | 2 +- docs/core-data-structures/subagent.md | 4 +- docs/module-graph.md | 3 +- packages/core/tools/README.md | 6 + packages/core/tools/src/index.ts | 10 + packages/core/tools/src/json-schema.ts | 322 ++++++++++++++ packages/core/tools/tests/json-schema.spec.ts | 254 +++++++++++ packages/subagent/subagent-fork/README.md | 3 +- packages/subagent/subagent-fork/src/index.ts | 35 +- .../tests/multi-subagent.spec.ts | 4 +- .../subagent-fork/tests/subagent-fork.spec.ts | 16 +- .../subagent/subagent-inprocess/README.md | 21 +- .../subagent/subagent-inprocess/package.json | 1 + .../subagent/subagent-inprocess/src/index.ts | 92 +++- .../subagent-inprocess/src/structured.ts | 193 +++++++++ .../tests/structured.spec.ts | 393 ++++++++++++++++++ .../tests/subagent-inprocess.spec.ts | 6 +- .../subagent/subagent-inprocess/tsconfig.json | 3 + packages/subagent/subagent-spawn/README.md | 5 +- packages/subagent/subagent-spawn/src/index.ts | 48 ++- .../subagent/subagent-spawn/tests/harness.ts | 2 +- .../tests/subagent-spawn.spec.ts | 16 +- packages/subagent/subagent/src/types.ts | 14 +- .../subagent/subagent/tests/service.spec.ts | 4 +- .../subagent-mock/tests/subagent-mock.spec.ts | 4 +- 26 files changed, 1402 insertions(+), 65 deletions(-) create mode 100644 packages/core/tools/src/json-schema.ts create mode 100644 packages/core/tools/tests/json-schema.spec.ts create mode 100644 packages/subagent/subagent-inprocess/src/structured.ts create mode 100644 packages/subagent/subagent-inprocess/tests/structured.spec.ts diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 5fbcecc4eb..c85b459069 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -287,7 +287,7 @@ A tool was registered or unregistered (the available tool set changed). 'tools/change'(): void ``` -Source: [`packages/core/tools/src/index.ts:87`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:97`](../../packages/core/tools/src/index.ts) ### `tools/post-execute` — waterfall @@ -299,7 +299,7 @@ Waterfall AFTER a tool runs — where hook plugins inspect the result and accept Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:82`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:92`](../../packages/core/tools/src/index.ts) ### `tools/pre-execute` — waterfall @@ -311,7 +311,7 @@ Waterfall BEFORE a tool runs — the gate where sandbox, permission, and hook pl Types: [ToolExecution](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:66`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:76`](../../packages/core/tools/src/index.ts) ## Inherited events (cordis core + loader/hmr/timer) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 0e1833fd9f..951e182000 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -203,7 +203,7 @@ async execute(exec: ToolExecution): Promise Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:268`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:278`](../../packages/core/tools/src/index.ts) ## `ctx.web` — `WebService` diff --git a/docs/core-data-structures/subagent.md b/docs/core-data-structures/subagent.md index 32b5224773..8747f76566 100644 --- a/docs/core-data-structures/subagent.md +++ b/docs/core-data-structures/subagent.md @@ -20,7 +20,7 @@ interface SubagentCapabilities { ## The start request -What a caller asks for when starting a subagent. The tool layer builds this from the model's `{ description, prompt }` plus its own config; the service validates the start-time capabilities against the named provider, then passes it to `provider.start`. `parent` is REQUIRED — in-process backends read `parent.session.header` for the working directory, the `parentSession` lineage, and the delegation depth. The three optional fields (`outputSchema`, `maxDepth`, `toolFilter`) each gate on the matching `SubagentCapabilities` flag. +What a caller asks for when starting a subagent. The tool layer builds this from the model's `{ description, prompt }` plus its own config; the service validates the start-time capabilities against the named provider, then passes it to `provider.start`. `parent` is REQUIRED — in-process backends read `parent.session.header` for the working directory, the `parentSession` lineage, and the delegation depth. The three optional fields (`outputSchema`, `maxDepth`, `toolFilter`) each gate on the matching `SubagentCapabilities` flag. `outputSchema` is an object-rooted JSON Schema within the subset `assertSupportedOutputSchema` (dsh-tools) enforces — a schema outside it is rejected loud at start; the in-process backends realize it with a forced `structured_output` capture tool (see the [driver README](../../packages/subagent/subagent-inprocess/README.md)). ```ts type-equiv interface SubagentStartRequest { @@ -28,7 +28,7 @@ interface SubagentStartRequest { parent: Agent signal?: AbortSignal agentOptions?: AgentOptions - outputSchema?: SchemaSpec + outputSchema?: StructuredOutputSchema maxDepth?: number toolFilter?: { allow?: string[]; deny?: string[] } } diff --git a/docs/module-graph.md b/docs/module-graph.md index 50ef532fa4..e8f1edfaa5 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -104,6 +104,7 @@ graph TD subagent-inprocess --> llm subagent-inprocess --> session subagent-inprocess --> subagent + subagent-inprocess --> tools subagent-mock --> agent subagent-mock --> llm subagent-mock --> subagent @@ -169,7 +170,7 @@ graph TD | `agent-core` | `agent`, `agent-loop`, `invariants`, `llm`, `session`, `system-prompt`, `tool-bash`, `tools` | | `hooks-claude` | `agent`, `hook-protocol`, `llm`, `session`, `subagent`, `tools` | | `subagent-acp` | `agent`, `llm`, `subagent` | -| `subagent-inprocess` | `agent`, `llm`, `session`, `subagent` | +| `subagent-inprocess` | `agent`, `llm`, `session`, `subagent`, `tools` | | `subagent-mock` | `agent`, `llm`, `subagent` | | `tool-subagent` | `agent`, `llm`, `subagent`, `tools` | | `acp-agent` | `acp`, `agent-core`, `app-boot`, `session-persistence-jsonl` | diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index 65039aea58..d43f24e123 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -71,6 +71,12 @@ A `defineTool` tool also **validates the model-generated arguments against its ` See `defineTool`, `validateArgs`, `ToolArgsError`, `SchemaSpec`, `InferArgs`, and `schemaSpecToJsonSchema` in the public API for details. +### Structured-output schema subset + +A separate vocabulary for callers that DEMAND a machine-readable value from an agent — the subagent seam's `SubagentStartRequest.outputSchema` (and, by extension, a workflow's `agent({ schema })`). Unlike `SchemaSpec` (the author-facing DSL for tool parameters), a `StructuredOutputSchema` is an object-rooted **raw JSON Schema subset** as data: it travels verbatim to the model as a forced tool's `parameters`, and the produced value is validated against it. + +The subset is deliberately narrow and REJECTS LOUD outside it — accepting a keyword the validator doesn't enforce would validate less than the schema promises (accepted-then-ignored). Supported: single-string `type` (`object`/`array`/`string`/`number`/`integer`/`boolean`/`null`; type arrays rejected), `properties`/`required`/`additionalProperties` (boolean; every `required` key must be declared), `items`, scalar-only `enum`/`const`; annotations (`description`/`title`/`default`/`examples`) are ignored but must still be JSON data. `assertSupportedOutputSchema(schema)` throws `OutputSchemaError` (`code: 'UNSUPPORTED_SCHEMA'`, listing every violation) for anything else; `validateStructuredValue(schema, value)` returns path-qualified violations (empty = valid, total — never throws). + ### Tool-owned UI presentation A tool owns how ITS calls render in a UI (an editor's tool-call card, a CLI log line) — a UI plugin must NOT special-case tool names. A `ToolDefinition` may declare two optional, pure, display-only methods that return a **`card`-tagged render intent** (a discriminated union — a tool declares its card kind once and a UI bridge switches on `card`): diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index dd0ed918db..39dafd6f1a 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -28,6 +28,16 @@ export { type JsonSchemaObject, } from './schema.ts' +export { + assertSupportedOutputSchema, + validateStructuredValue, + OutputSchemaError, + type StructuredOutputSchema, + type StructuredSchemaNode, + type StructuredSchemaType, + type StructuredScalar, +} from './json-schema.ts' + // The render-intent vocabulary a tool declares via `presentCall`/`presentResult` // lives in its own UI-facing module; re-export it so `@deepseek-ai/dsh-tools` // stays the single public surface for consumers (producers + the ACP bridge). diff --git a/packages/core/tools/src/json-schema.ts b/packages/core/tools/src/json-schema.ts new file mode 100644 index 0000000000..35eeb240a4 --- /dev/null +++ b/packages/core/tools/src/json-schema.ts @@ -0,0 +1,322 @@ +/** + * Structured-output JSON Schema subset: the vocabulary a caller uses to demand + * a machine-readable result from a subagent (`SubagentStartRequest.outputSchema`) + * or a workflow `agent()` call. + * + * This is deliberately NOT full JSON Schema. The schema travels verbatim to the + * model as a forced tool's `parameters`, and the value the model produces is + * validated here — so every accepted keyword must be one this module actually + * enforces. Accepting a keyword we don't enforce would validate less than the + * schema promises (accepted-then-ignored), so anything outside the subset is + * REJECTED LOUD by {@link assertSupportedOutputSchema} instead. The subset: + * + * - `type` — a single string (`object`/`array`/`string`/`number`/`integer`/ + * `boolean`/`null`); type ARRAYS (`["string","null"]`) are rejected. + * - `properties`/`required`/`additionalProperties` (boolean) on objects; every + * `required` key must be declared in `properties`. `additionalProperties` + * absent keeps standard JSON Schema semantics (extra keys allowed). + * - `items` on arrays (absent ⇒ any JSON items). + * - `enum` (non-empty, scalars only) and `const` (scalar) on scalar types. + * - Annotations `description`/`title`/`default`/`examples` are allowed and + * ignored (they constrain nothing), except that they must still be JSON data + * — the schema is serialized onto the wire, so a non-JSON annotation would be + * silently mangled. + * + * Values checked by {@link validateStructuredValue} are expected to be plain + * host-realm JSON data (model tool-call arguments are parsed wire JSON; a + * caller holding foreign-realm data materializes it first). + * + * @module dsh-tools/json-schema + */ + +import { assertNever, HarnessError } from '@deepseek-ai/dsh-llm' + +/** The scalar values `enum`/`const` may carry (finite numbers only). */ +export type StructuredScalar = string | number | boolean | null + +/** The `type` keywords the subset accepts. */ +export type StructuredSchemaType = 'object' | 'array' | 'string' | 'number' | 'integer' | 'boolean' | 'null' + +/** + * One node of the structured-output schema subset. Recursive via `properties` + * and `items`; see the module doc for the exact keyword semantics. + */ +export interface StructuredSchemaNode { + type: StructuredSchemaType + /** Nested property schemas (`type: 'object'` only). */ + properties?: Record + /** Required property names; each must appear in `properties`. */ + required?: string[] + /** `false` rejects undeclared keys; absent/`true` allows them (JSON Schema default). */ + additionalProperties?: boolean + /** Item schema (`type: 'array'` only); absent ⇒ any JSON items. */ + items?: StructuredSchemaNode + /** Allowed values (scalar types only). */ + enum?: StructuredScalar[] + /** The single allowed value (scalar types only). */ + const?: StructuredScalar + /** Annotation, ignored for validation. */ + description?: string + /** Annotation, ignored for validation. */ + title?: string + /** Annotation, ignored for validation (must still be JSON data). */ + default?: unknown + /** Annotation, ignored for validation (must still be JSON data). */ + examples?: unknown +} + +/** A structured-output schema: an OBJECT-rooted {@link StructuredSchemaNode}. */ +export type StructuredOutputSchema = StructuredSchemaNode & { type: 'object' } + +/** + * Thrown by {@link assertSupportedOutputSchema} when a schema falls outside the + * supported subset. Extends {@link HarnessError} (`code: 'UNSUPPORTED_SCHEMA'`) + * so seam code and tool results can route on it; `violations` lists every + * offending path, not just the first. + */ +export class OutputSchemaError extends HarnessError { + /** The individual violation messages, in walk order. */ + readonly violations: string[] + + constructor(violations: string[]) { + super(`unsupported output schema: ${violations.join('; ')}`, 'UNSUPPORTED_SCHEMA') + this.name = 'OutputSchemaError' + this.violations = violations + } +} + +/** The keywords the subset accepts, checked (`constraint`) or ignored (`annotation`). */ +const CONSTRAINT_KEYWORDS = new Set(['type', 'properties', 'required', 'additionalProperties', 'items', 'enum', 'const']) +const ANNOTATION_KEYWORDS = new Set(['description', 'title', 'default', 'examples']) + +const SCHEMA_TYPES: readonly StructuredSchemaType[] = ['object', 'array', 'string', 'number', 'integer', 'boolean', 'null'] + +/** Whether a value is a non-null, non-array object (structural, realm-agnostic). */ +function isObjectLike(value: unknown): value is Record { + return typeof value === 'object' && value !== null && !Array.isArray(value) +} + +/** Whether a value is a supported scalar (`enum`/`const` member): string, finite number, boolean, or null. */ +function isStructuredScalar(value: unknown): value is StructuredScalar { + return value === null || typeof value === 'string' || typeof value === 'boolean' + || (typeof value === 'number' && Number.isFinite(value)) +} + +/** + * Whether a value is JSON data (annotation payloads only): scalars, arrays, and + * object-likes of such values. Realm-agnostic on purpose (no prototype check) — + * the schema may have been materialized from another realm; structural JSON-ness + * is what the wire needs. Cycles are rejected via `seen`. + */ +function isJsonData(value: unknown, seen: Set): boolean { + if (isStructuredScalar(value)) return true + // The scalar check above already returned for null, so `object` here is a real object. + if (typeof value !== 'object') return false + if (seen.has(value)) return false + seen.add(value) + try { + if (Array.isArray(value)) return value.every(entry => isJsonData(entry, seen)) + return Object.values(value).every(entry => isJsonData(entry, seen)) + } finally { + seen.delete(value) + } +} + +/** Collect subset violations for one schema node (recursive walk). */ +function checkSchemaNode(node: unknown, path: string, violations: string[], seen: Set): void { + if (!isObjectLike(node)) { + violations.push(`${path} must be a schema object`) + return + } + if (seen.has(node)) { + violations.push(`${path} is circular`) + return + } + seen.add(node) + + for (const key of Object.keys(node)) { + if (CONSTRAINT_KEYWORDS.has(key)) continue + if (ANNOTATION_KEYWORDS.has(key)) { + if (!isJsonData(node[key], new Set())) violations.push(`${path}.${key} annotation must be JSON data`) + continue + } + violations.push(`${path}.${key} is not a supported keyword (subset: type/properties/required/additionalProperties/items/enum/const + annotations)`) + } + if (typeof node.description !== 'undefined' && typeof node.description !== 'string') { + violations.push(`${path}.description must be a string`) + } + if (typeof node.title !== 'undefined' && typeof node.title !== 'string') { + violations.push(`${path}.title must be a string`) + } + + const type = node.type + if (typeof type !== 'string' || !(SCHEMA_TYPES as readonly unknown[]).includes(type)) { + violations.push(Array.isArray(type) + ? `${path}.type must be a single type string (type arrays are not supported)` + : `${path}.type must be one of ${SCHEMA_TYPES.join('/')}`) + seen.delete(node) + return + } + const schemaType = type as StructuredSchemaType + + // Keywords that only make sense on one type are rejected elsewhere — an + // `items` on an object (or `properties` on a string) is a schema-author bug + // the subset surfaces rather than ignores. + const allowedFor: Record = { + properties: ['object'], + required: ['object'], + additionalProperties: ['object'], + items: ['array'], + enum: ['string', 'number', 'integer', 'boolean', 'null'], + const: ['string', 'number', 'integer', 'boolean', 'null'], + } + for (const [key, types] of Object.entries(allowedFor)) { + if (key in node && !types.includes(schemaType)) { + violations.push(`${path}.${key} is not supported on type "${schemaType}"`) + } + } + + switch (schemaType) { + case 'object': { + const properties = node.properties + if (properties !== undefined) { + if (!isObjectLike(properties)) { + violations.push(`${path}.properties must be an object of schemas`) + } else { + for (const [key, child] of Object.entries(properties)) { + checkSchemaNode(child, `${path}.properties.${key}`, violations, seen) + } + } + } + const required = node.required + if (required !== undefined) { + if (!Array.isArray(required) || required.some(entry => typeof entry !== 'string')) { + violations.push(`${path}.required must be an array of strings`) + } else { + const declared = isObjectLike(properties) ? properties : {} + for (const key of required) { + if (!(key in declared)) violations.push(`${path}.required names "${key}" which is not in properties`) + } + } + } + if (node.additionalProperties !== undefined && typeof node.additionalProperties !== 'boolean') { + violations.push(`${path}.additionalProperties must be a boolean`) + } + break + } + case 'array': { + if (node.items !== undefined) checkSchemaNode(node.items, `${path}.items`, violations, seen) + break + } + case 'string': + case 'number': + case 'integer': + case 'boolean': + case 'null': { + const allowed = node.enum + if (allowed !== undefined) { + if (!Array.isArray(allowed) || allowed.length === 0 || !allowed.every(entry => isStructuredScalar(entry))) { + violations.push(`${path}.enum must be a non-empty array of scalars`) + } + } + if ('const' in node && !isStructuredScalar(node.const)) { + violations.push(`${path}.const must be a scalar`) + } + break + } + /* v8 ignore start -- defensive: schemaType was membership-checked against SCHEMA_TYPES above, so no runtime value reaches here */ + default: + assertNever(schemaType, 'assertSupportedOutputSchema') + /* v8 ignore stop */ + } + + seen.delete(node) +} + +/** + * Assert `schema` is a supported {@link StructuredOutputSchema} — object-rooted + * and entirely within the enforced subset. Throws {@link OutputSchemaError} + * (`UNSUPPORTED_SCHEMA`) listing EVERY violation; returns (and narrows) on + * success. Call this at the seam boundary, before any child is created. + * @param schema - the caller-supplied schema (unknown until asserted). + */ +export function assertSupportedOutputSchema(schema: unknown): asserts schema is StructuredOutputSchema { + const violations: string[] = [] + checkSchemaNode(schema, 'schema', violations, new Set()) + if (violations.length === 0 && (schema as StructuredSchemaNode).type !== 'object') { + violations.push('schema.type must be "object" (structured output is object-rooted)') + } + if (violations.length > 0) throw new OutputSchemaError(violations) +} + +/** Collect violations for one value against an (already asserted) schema node. */ +function checkValue(node: StructuredSchemaNode, value: unknown, path: string): string[] { + switch (node.type) { + case 'object': { + if (!isObjectLike(value)) return [`"${path}" must be an object`] + const violations: string[] = [] + const properties = node.properties ?? {} + for (const key of node.required ?? []) { + if (value[key] === undefined) violations.push(`missing required property "${path}.${key}"`) + } + for (const [key, child] of Object.entries(properties)) { + if (value[key] === undefined) continue + violations.push(...checkValue(child, value[key], `${path}.${key}`)) + } + if (node.additionalProperties === false) { + for (const key of Object.keys(value)) { + if (!(key in properties)) violations.push(`"${path}.${key}" is not a declared property (additionalProperties: false)`) + } + } + return violations + } + case 'array': { + if (!Array.isArray(value)) return [`"${path}" must be an array`] + if (!node.items) return [] + const items = node.items + return value.flatMap((entry, index) => checkValue(items, entry, `${path}[${index}]`)) + } + case 'string': { + if (typeof value !== 'string') return [`"${path}" must be a string`] + break + } + case 'number': { + if (typeof value !== 'number' || !Number.isFinite(value)) return [`"${path}" must be a finite number`] + break + } + case 'integer': { + if (typeof value !== 'number' || !Number.isInteger(value)) return [`"${path}" must be an integer`] + break + } + case 'boolean': { + if (typeof value !== 'boolean') return [`"${path}" must be a boolean`] + break + } + case 'null': { + if (value !== null) return [`"${path}" must be null`] + break + } + default: + return assertNever(node.type, 'validateStructuredValue') + } + // Scalar constraint checks, shared by every scalar branch above. + if (node.enum && !node.enum.includes(value)) { + return [`"${path}" must be one of ${JSON.stringify(node.enum)}`] + } + if ('const' in node && value !== node.const) { + return [`"${path}" must be ${JSON.stringify(node.const)}`] + } + return [] +} + +/** + * Validate a value against an (already {@link assertSupportedOutputSchema}- + * asserted) schema. Returns human-readable, path-qualified violation messages + * — empty means valid. Total: never throws, however malformed the value. + * @param schema - the asserted schema to check against. + * @param value - the candidate value (e.g. parsed tool-call arguments). + * @returns every violation found, in walk order (empty = valid). + */ +export function validateStructuredValue(schema: StructuredOutputSchema, value: unknown): string[] { + return checkValue(schema, value, 'value') +} diff --git a/packages/core/tools/tests/json-schema.spec.ts b/packages/core/tools/tests/json-schema.spec.ts new file mode 100644 index 0000000000..e7635b06f3 --- /dev/null +++ b/packages/core/tools/tests/json-schema.spec.ts @@ -0,0 +1,254 @@ +import { describe, expect, it } from 'vitest' +import { + assertSupportedOutputSchema, + OutputSchemaError, + validateStructuredValue, + type StructuredOutputSchema, +} from '../src/json-schema.ts' + +/** Assert-and-narrow helper: the asserted schema, typed. */ +function asserted(schema: unknown): StructuredOutputSchema { + assertSupportedOutputSchema(schema) + return schema +} + +/** The violations OutputSchemaError carries for a bad schema (throws if it passes). */ +function violationsOf(schema: unknown): string[] { + try { + assertSupportedOutputSchema(schema) + } catch (error: unknown) { + if (error instanceof OutputSchemaError) return error.violations + throw error + } + throw new Error('expected the schema to be rejected') +} + +describe('assertSupportedOutputSchema', () => { + it('accepts a representative subset schema (all supported keywords)', () => { + const schema = asserted({ + type: 'object', + description: 'a finding', + title: 'Finding', + properties: { + file: { type: 'string', description: 'path' }, + line: { type: 'integer' }, + severity: { type: 'string', enum: ['low', 'high'] }, + kind: { type: 'string', const: 'bug' }, + score: { type: 'number' }, + confirmed: { type: 'boolean' }, + parent: { type: 'null' }, + tags: { type: 'array', items: { type: 'string' } }, + nested: { + type: 'object', + properties: { x: { type: 'number', default: 3, examples: [1, 2] } }, + additionalProperties: false, + }, + anything: { type: 'array' }, + }, + required: ['file', 'line'], + additionalProperties: true, + }) + expect(schema.type).toBe('object') + }) + + it('rejects a non-object root (scalar/array-rooted schemas)', () => { + expect(violationsOf({ type: 'string' })).toEqual(['schema.type must be "object" (structured output is object-rooted)']) + expect(violationsOf({ type: 'array', items: { type: 'string' } })) + .toContain('schema.type must be "object" (structured output is object-rooted)') + }) + + it('rejects non-object schema nodes and missing/unknown type', () => { + expect(violationsOf('nope')).toEqual(['schema must be a schema object']) + expect(violationsOf(null)).toEqual(['schema must be a schema object']) + expect(violationsOf([])).toEqual(['schema must be a schema object']) + expect(violationsOf({})).toEqual(['schema.type must be one of object/array/string/number/integer/boolean/null']) + expect(violationsOf({ type: 'tuple' })[0]).toMatch(/type must be one of/) + expect(violationsOf({ type: 'object', properties: { a: 'str' } })).toEqual(['schema.properties.a must be a schema object']) + }) + + it('rejects type ARRAYS with a dedicated message', () => { + expect(violationsOf({ type: ['string', 'null'] })) + .toEqual(['schema.type must be a single type string (type arrays are not supported)']) + }) + + it('rejects unsupported constraint keywords loudly (never accepted-then-ignored)', () => { + for (const keyword of ['oneOf', 'anyOf', 'allOf', 'not', 'pattern', 'minimum', 'maxLength', '$ref']) { + const bad = violationsOf({ type: 'object', [keyword]: [] }) + expect(bad.some(v => v.includes(`schema.${keyword} is not a supported keyword`))).toBe(true) + } + }) + + it('reports EVERY violation, not just the first', () => { + const bad = violationsOf({ + type: 'object', + pattern: 'x', + properties: { a: { type: 'weird' }, b: { type: 'string', minimum: 1 } }, + }) + expect(bad.length).toBe(3) + }) + + it('rejects keywords on the wrong type (items on object, properties on string, enum on object)', () => { + expect(violationsOf({ type: 'object', items: { type: 'string' } })) + .toEqual(['schema.items is not supported on type "object"']) + expect(violationsOf({ type: 'object', properties: { a: { type: 'string', properties: {} } } })) + .toEqual(['schema.properties.a.properties is not supported on type "string"']) + expect(violationsOf({ type: 'object', enum: [1] })) + .toEqual(['schema.enum is not supported on type "object"']) + expect(violationsOf({ type: 'object', properties: { a: { type: 'array', const: 1 } } })) + .toEqual(['schema.properties.a.const is not supported on type "array"']) + }) + + it('validates required: must be string[] naming declared properties', () => { + expect(violationsOf({ type: 'object', required: 'file' })) + .toEqual(['schema.required must be an array of strings']) + expect(violationsOf({ type: 'object', required: [1] })) + .toEqual(['schema.required must be an array of strings']) + expect(violationsOf({ type: 'object', properties: { a: { type: 'string' } }, required: ['b'] })) + .toEqual(['schema.required names "b" which is not in properties']) + expect(violationsOf({ type: 'object', required: ['a'] })) + .toEqual(['schema.required names "a" which is not in properties']) + }) + + it('validates additionalProperties must be boolean and enum/const must be scalars', () => { + expect(violationsOf({ type: 'object', additionalProperties: {} })) + .toEqual(['schema.additionalProperties must be a boolean']) + expect(violationsOf({ type: 'object', properties: { a: { type: 'string', enum: [] } } })) + .toEqual(['schema.properties.a.enum must be a non-empty array of scalars']) + expect(violationsOf({ type: 'object', properties: { a: { type: 'string', enum: [{}] } } })) + .toEqual(['schema.properties.a.enum must be a non-empty array of scalars']) + expect(violationsOf({ type: 'object', properties: { a: { type: 'string', enum: 'x' } } })) + .toEqual(['schema.properties.a.enum must be a non-empty array of scalars']) + expect(violationsOf({ type: 'object', properties: { a: { type: 'number', enum: [Number.NaN] } } })) + .toEqual(['schema.properties.a.enum must be a non-empty array of scalars']) + expect(violationsOf({ type: 'object', properties: { a: { type: 'string', const: {} } } })) + .toEqual(['schema.properties.a.const must be a scalar']) + }) + + it('rejects non-string description/title and non-JSON annotation payloads', () => { + expect(violationsOf({ type: 'object', description: 7 })) + .toEqual(['schema.description must be a string']) + expect(violationsOf({ type: 'object', title: 7 })) + .toEqual(['schema.title must be a string']) + expect(violationsOf({ type: 'object', default: () => 1 })) + .toEqual(['schema.default annotation must be JSON data']) + expect(violationsOf({ type: 'object', examples: [undefined] })) + .toEqual(['schema.examples annotation must be JSON data']) + expect(violationsOf({ type: 'object', examples: [Number.POSITIVE_INFINITY] })) + .toEqual(['schema.examples annotation must be JSON data']) + // A cyclic annotation payload is caught by the JSON-data walk. + const cyclicAnnotation: Record = {} + cyclicAnnotation.self = cyclicAnnotation + expect(violationsOf({ type: 'object', default: cyclicAnnotation })) + .toEqual(['schema.default annotation must be JSON data']) + // Object/array annotations that ARE JSON data pass. + asserted({ type: 'object', default: { a: [1, 'x', null, true] } }) + }) + + it('rejects a circular schema instead of recursing forever', () => { + const node: Record = { type: 'object' } + node.properties = { self: node } + expect(violationsOf(node)).toEqual(['schema.properties.self is circular']) + }) + + it('accepts the same subschema object reused in two SIBLING positions (a DAG, not a cycle)', () => { + const leaf = { type: 'string' } + asserted({ type: 'object', properties: { a: leaf, b: leaf } }) + }) +}) + +describe('validateStructuredValue', () => { + const schema = asserted({ + type: 'object', + properties: { + file: { type: 'string' }, + line: { type: 'integer' }, + score: { type: 'number' }, + confirmed: { type: 'boolean' }, + parent: { type: 'null' }, + severity: { type: 'string', enum: ['low', 'high'] }, + kind: { type: 'string', const: 'bug' }, + tags: { type: 'array', items: { type: 'string' } }, + free: { type: 'array' }, + nested: { type: 'object', properties: { x: { type: 'number' } }, required: ['x'], additionalProperties: false }, + }, + required: ['file'], + }) + + it('accepts a fully valid value (empty violations)', () => { + expect(validateStructuredValue(schema, { + file: 'a.ts', line: 3, score: 0.5, confirmed: true, parent: null, + severity: 'high', kind: 'bug', tags: ['x'], free: [1, { any: true }], nested: { x: 1 }, + })).toEqual([]) + }) + + it('reports missing required and wrong root type', () => { + expect(validateStructuredValue(schema, {})).toEqual(['missing required property "value.file"']) + expect(validateStructuredValue(schema, 'nope')).toEqual(['"value" must be an object']) + expect(validateStructuredValue(schema, [])).toEqual(['"value" must be an object']) + }) + + it('type-checks every scalar branch with path-qualified messages', () => { + expect(validateStructuredValue(schema, { file: 1 })).toEqual(['"value.file" must be a string']) + expect(validateStructuredValue(schema, { file: 'a', line: 1.5 })).toEqual(['"value.line" must be an integer']) + expect(validateStructuredValue(schema, { file: 'a', line: 'x' })).toEqual(['"value.line" must be an integer']) + expect(validateStructuredValue(schema, { file: 'a', score: 'x' })).toEqual(['"value.score" must be a finite number']) + expect(validateStructuredValue(schema, { file: 'a', score: Number.NaN })).toEqual(['"value.score" must be a finite number']) + expect(validateStructuredValue(schema, { file: 'a', confirmed: 'yes' })).toEqual(['"value.confirmed" must be a boolean']) + expect(validateStructuredValue(schema, { file: 'a', parent: 0 })).toEqual(['"value.parent" must be null']) + }) + + it('enforces enum membership and const equality', () => { + expect(validateStructuredValue(schema, { file: 'a', severity: 'mid' })) + .toEqual(['"value.severity" must be one of ["low","high"]']) + expect(validateStructuredValue(schema, { file: 'a', kind: 'feature' })) + .toEqual(['"value.kind" must be "bug"']) + }) + + it('checks arrays per index; an items-less array accepts anything', () => { + expect(validateStructuredValue(schema, { file: 'a', tags: 'x' })).toEqual(['"value.tags" must be an array']) + expect(validateStructuredValue(schema, { file: 'a', tags: ['ok', 2] })).toEqual(['"value.tags[1]" must be a string']) + expect(validateStructuredValue(schema, { file: 'a', free: [{ deep: [1] }, null] })).toEqual([]) + }) + + it('recurses into nested objects: required + additionalProperties: false', () => { + expect(validateStructuredValue(schema, { file: 'a', nested: {} })) + .toEqual(['missing required property "value.nested.x"']) + expect(validateStructuredValue(schema, { file: 'a', nested: { x: 1, y: 2 } })) + .toEqual(['"value.nested.y" is not a declared property (additionalProperties: false)']) + expect(validateStructuredValue(schema, { file: 'a', nested: 3 })) + .toEqual(['"value.nested" must be an object']) + }) + + it('a required key present-but-undefined counts as missing', () => { + expect(validateStructuredValue(schema, { file: undefined })).toEqual(['missing required property "value.file"']) + }) + + it('collects multiple violations across branches in one pass', () => { + expect(validateStructuredValue(schema, { line: 'x', severity: 'mid' })).toEqual([ + 'missing required property "value.file"', + '"value.line" must be an integer', + '"value.severity" must be one of ["low","high"]', + ]) + }) + + it('null-typed const/enum work through the scalar path', () => { + const nullish = asserted({ type: 'object', properties: { a: { type: 'null', const: null } } }) + expect(validateStructuredValue(nullish, { a: null })).toEqual([]) + }) + + it('rejects a non-object properties value in the schema walk', () => { + expect(violationsOf({ type: 'object', properties: [] })) + .toEqual(['schema.properties must be an object of schemas']) + }) + + it('an object schema without properties/required only type-checks its value', () => { + const bare = asserted({ type: 'object' }) + expect(validateStructuredValue(bare, { any: ['thing'] })).toEqual([]) + expect(validateStructuredValue(bare, 7)).toEqual(['"value" must be an object']) + }) + + it('validateStructuredValue throws on a type the assert would never let through (assertNever backstop)', () => { + const forged = { type: 'tuple' } as unknown as StructuredOutputSchema + expect(() => validateStructuredValue(forged, 1)).toThrow(/tuple/) + }) +}) diff --git a/packages/subagent/subagent-fork/README.md b/packages/subagent/subagent-fork/README.md index c691d56355..7b43f82261 100644 --- a/packages/subagent/subagent-fork/README.md +++ b/packages/subagent/subagent-fork/README.md @@ -12,12 +12,13 @@ The seam this rides on: `CreateAgentOptions.seed` (added on `dsh-agent`, threade ## Capabilities -`{ outputSchema: false, depthLimit: true, toolFilter: false }` — identical to spawn (the depth/model/output behavior is the shared driver's). +`{ outputSchema: true, depthLimit: true, toolFilter: false }` — identical to spawn (the depth/model/structured-output behavior is the shared driver's). ## Config | Key | Meaning | |---|---| | `providerName` | Registry name on `ctx.subagents` (default `fork`). | +| `structuredNudgeRetries` | How many times a structured run re-prompts a child that finished cleanly without calling `structured_output` (default 1). | See [`dsh-subagent-spawn`](../subagent-spawn/README.md) for the run lifecycle, model inheritance, and depth tracking — all shared. diff --git a/packages/subagent/subagent-fork/src/index.ts b/packages/subagent/subagent-fork/src/index.ts index 02c1811d82..39dfbfd440 100644 --- a/packages/subagent/subagent-fork/src/index.ts +++ b/packages/subagent/subagent-fork/src/index.ts @@ -25,19 +25,25 @@ import z from 'schemastery' import type { SessionEvent } from '@deepseek-ai/dsh-session' import type { Agent } from '@deepseek-ai/dsh-agent' import type { SubagentCapabilities, SubagentProvider, SubagentStartRequest } from '@deepseek-ai/dsh-subagent' -import { startInProcessRun } from '@deepseek-ai/dsh-subagent-inprocess' +import { acquireStructuredRuntime, startInProcessRun } from '@deepseek-ai/dsh-subagent-inprocess' export const name = 'subagent-fork' -export const inject = ['subagents', 'agents'] +export const inject = ['subagents', 'agents', 'tools'] -/** Config: the registry name to register the provider under. */ +/** Config: the registry name to register the provider under, plus structured-run tuning. */ export interface Config { /** Provider name on `ctx.subagents` (default `fork`). */ providerName: string + /** + * How many times a structured run re-prompts a child that finished cleanly + * without calling `structured_output` before giving up (default 1). + */ + structuredNudgeRetries: number } export const Config: z = z.object({ providerName: z.string().default('fork'), + structuredNudgeRetries: z.natural().default(1), }) /** @@ -57,18 +63,24 @@ export function completedTurnPrefix(parent: Agent): SessionEvent[] { } /** - * The fork provider. Supports `depthLimit`; NOT `outputSchema`/`toolFilter` this - * cut (the service rejects a request needing either before `start` runs). + * The fork provider. Supports `depthLimit` and `outputSchema` (via the shared + * in-process structured runtime); NOT `toolFilter` this cut (the service + * rejects a request needing it before `start` runs). */ class ForkProvider implements SubagentProvider { - readonly capabilities: SubagentCapabilities = { outputSchema: false, depthLimit: true, toolFilter: false } + readonly capabilities: SubagentCapabilities = { outputSchema: true, depthLimit: true, toolFilter: false } - constructor(readonly name: string, private readonly ctx: Context) {} + constructor( + readonly name: string, + private readonly ctx: Context, + private readonly structuredNudgeRetries: number, + ) {} start(request: SubagentStartRequest) { const seed = completedTurnPrefix(request.parent) return startInProcessRun(this.ctx, request, { providerName: this.name, + structuredNudgeRetries: this.structuredNudgeRetries, // Only pass a seed when there's a completed turn to inherit; an empty seed // is equivalent to a fresh child, so omit it to keep the session unseeded. ...seed.length > 0 ? { seed } : {}, @@ -77,5 +89,12 @@ class ForkProvider implements SubagentProvider { } export function apply(ctx: Context, config: Config): void { - ctx.subagents.registerProvider(new ForkProvider(config.providerName, ctx)) + // Hold the structured runtime for the plugin's lifetime (see the spawn + // backend — same two-level lifetime: backends for availability, runs for + // mid-run survival across a backend unload). + ctx.effect(() => { + const acquisition = acquireStructuredRuntime(ctx) + return () => { acquisition.release() } + }, 'subagent-fork structured runtime') + ctx.subagents.registerProvider(new ForkProvider(config.providerName, ctx, config.structuredNudgeRetries)) } diff --git a/packages/subagent/subagent-fork/tests/multi-subagent.spec.ts b/packages/subagent/subagent-fork/tests/multi-subagent.spec.ts index 1f932fbaf9..82caf25948 100644 --- a/packages/subagent/subagent-fork/tests/multi-subagent.spec.ts +++ b/packages/subagent/subagent-fork/tests/multi-subagent.spec.ts @@ -30,8 +30,8 @@ async function setup(script: Script) { await ctx.plugin(Invariants) await ctx.plugin(AgentLoop, { agents: [] }) await ctx.plugin(SubagentService) - await ctx.plugin(Spawn, { providerName: 'spawn' }) - await ctx.plugin(fork, { providerName: 'fork' }) + await ctx.plugin(Spawn, { providerName: 'spawn', structuredNudgeRetries: 1 }) + await ctx.plugin(fork, { providerName: 'fork', structuredNudgeRetries: 1 }) ctx.llm.registerAdapter(['mock'], new MockAdapter(script)) const parent = ctx.agentLoop.create(AgentId('parent'), { model: 'mock' }) return { ctx, parent } diff --git a/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts b/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts index 56441a656f..4abba075c3 100644 --- a/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts +++ b/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts @@ -37,7 +37,7 @@ async function setup(script: Script) { await ctx.plugin(Invariants) await ctx.plugin(AgentLoop, { agents: [] }) await ctx.plugin(SubagentService) - await ctx.plugin(fork, { providerName: 'fork' }) + await ctx.plugin(fork, { providerName: 'fork', structuredNudgeRetries: 1 }) ctx.llm.registerAdapter(['mock'], new MockAdapter(script)) const parent = ctx.agentLoop.create(AgentId('parent'), { model: 'mock' }) return { ctx, parent } @@ -161,16 +161,20 @@ describe('dsh-subagent-fork', () => { await run.dispose() }) - it('advertises depthLimit but not outputSchema/toolFilter', async () => { + it('advertises depthLimit and outputSchema but not toolFilter', async () => { const { ctx } = await setup([]) - expect(ctx.subagents.getProvider('fork')!.capabilities).toEqual({ outputSchema: false, depthLimit: true, toolFilter: false }) + expect(ctx.subagents.getProvider('fork')!.capabilities).toEqual({ outputSchema: true, depthLimit: true, toolFilter: false }) }) it('unregisters the provider when its fiber is disposed (HMR safety)', async () => { const ctx = new Context() await ctx.plugin(SubagentService) await ctx.plugin(AgentRegistry) - const fiber = await ctx.plugin(fork, { providerName: 'fork' }) + // The backend injects 'tools' for the structured runtime, so the registry + // (and its systemPrompt dependency) must be live for the fiber to activate. + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + const fiber = await ctx.plugin(fork, { providerName: 'fork', structuredNudgeRetries: 1 }) expect(ctx.subagents.list()).toEqual(['fork']) await fiber.dispose() expect(ctx.subagents.list()).toEqual([]) @@ -179,12 +183,12 @@ describe('dsh-subagent-fork', () => { it('has the namespace-plugin export shape (no stray default)', () => { expect('default' in fork).toBe(false) expect(fork.name).toBe('subagent-fork') - expect(fork.inject).toEqual(['subagents', 'agents']) + expect(fork.inject).toEqual(['subagents', 'agents', 'tools']) const loader = Object.create(Loader.prototype) as Loader const unwrapped = loader.unwrapExports(fork) as Record expect(unwrapped).toBe(fork) expect(unwrapped.name).toBe('subagent-fork') - expect(unwrapped.inject).toEqual(['subagents', 'agents']) + expect(unwrapped.inject).toEqual(['subagents', 'agents', 'tools']) expect(typeof unwrapped.apply).toBe('function') }) }) diff --git a/packages/subagent/subagent-inprocess/README.md b/packages/subagent/subagent-inprocess/README.md index af6d5792a9..1cbdccaee6 100644 --- a/packages/subagent/subagent-inprocess/README.md +++ b/packages/subagent/subagent-inprocess/README.md @@ -8,16 +8,27 @@ The shared **in-process subagent run driver**. A pure library (no provider, no r Runs a child as a child [`Agent`](../../core/agent) on the same cordis context (`ctx.agents`): -1. computes child depth = `depthOf(parent) + 1`; if `request.maxDepth` is set and exceeded, throws `SubagentDepthError` (the `depthLimit` capability); -2. creates a child via `ctx.agents.create` with a fresh `AgentId`/`SessionId`, the parent's `cwd` + `parentSession` lineage, the optional `options.seed` (fork's completed-turn prefix; omitted for a fresh child), and `agentOptions` (the child inherits the **parent's model** by default — a child with no model can't run — overridable via `request.agentOptions.model`; the system prompt is NOT inherited); -3. drives the one-shot: `child.send(prompt)` then `await child.whenIdle()` (ordering matters — `send` enqueues synchronously, so `whenIdle` observes the queued work and resolves on the child's `running → idle` transition, never before the turn starts); -4. reads the result, scoped to the child's OWN events (everything at or after `seedLength`, so a seeded child that produced no message of its own never returns the seeded parent's last message): the last `assistant/message` content (deep-cloned — the log is frozen) and the last `turn/end.reason` mapped to a `SubagentStopReason`. +1. computes child depth = `depthOf(parent) + 1`; if `request.maxDepth` is set and exceeded, throws `SubagentDepthError` (the `depthLimit` capability); a `request.outputSchema` is asserted against the supported subset (`assertSupportedOutputSchema` from [dsh-tools](../../core/tools/README.md)) before any child exists; +2. creates a child via `ctx.agents.create` with a fresh `AgentId`/`SessionId`, the parent's `cwd` + `parentSession` lineage, the optional `options.seed` (fork's completed-turn prefix; omitted for a fresh child), and `agentOptions` (the child inherits the **parent's model** by default — a child with no model can't run — overridable via `request.agentOptions.model`; the system prompt is NOT inherited; a structured run appends the `structured_output` instruction after the caller's prompt); +3. drives the one-shot: `child.send(prompt)` then `await child.whenIdle()` (ordering matters — `send` enqueues synchronously, so `whenIdle` observes the queued work and resolves on the child's `running → idle` transition, never before the turn starts); a structured child that finished a turn CLEANLY without calling `structured_output` is re-prompted (a nudge — a fresh turn) up to `options.structuredNudgeRetries` times; +4. reads the result, scoped to the child's OWN events (everything at or after `seedLength`, so a seeded child that produced no message of its own never returns the seeded parent's last message): the last `assistant/message` content (deep-cloned — the log is frozen) and the last `turn/end.reason` mapped to a `SubagentStopReason`. A structured run surfaces the captured value as `result.structured`; a structured child that finished cleanly WITHOUT ever capturing settles `error` (a clean finish without the demanded result is a failure, not a success with a missing field). `dispose()` delegates to `AgentHandle.dispose()` (stop loop → await quiescence → remove session); `cancel()` cancels the child's in-flight turn. A cancel landing before any `turn/end` (the pre-turn window) still settles `aborted`, honoring the cancel contract rather than the generic no-turn `error`. ### `InProcessRunOptions` -`{ providerName: string; seed?: SessionEvent[] }` — the per-backend inputs: the provider name (for error context) and the optional child-session seed. +`{ providerName: string; seed?: SessionEvent[]; structuredNudgeRetries: number }` — the per-backend inputs: the provider name (for error context), the optional child-session seed, and the structured-run nudge budget (REQUIRED, resolved from the backend's validated Config — the driver never fills it with a hidden default). + +### Structured output: `acquireStructuredRuntime(ctx): StructuredAcquisition` + +The mechanism behind `outputSchema` for in-process children. One globally registered `structured_output` capture tool (its registered parameters are a placeholder) plus two listeners, registered once per root context and shared by every holder: + +- an `agent/request` waterfall listener registered `prepend: true` that post-processes `await next()` — **final-request enforcement**: the request that hits the wire never carries `structured_output` for an agent without a structured run, and always carries the run's OWN schema (as the tool's `parameters`) for one that has it. Per-agent shaping lives here because the tool registry and prompt assembly are context-global while schemas differ per concurrent child; cooperative mutate-then-`next()` would not survive a downstream listener returning a replacement request. +- an `agent/turn-continuation` listener that stops a child's turn once its output is captured, so a successful capture doesn't buy a wasted extra model step. + +The capture tool validates each call against the run's schema (`validateStructuredValue`) — violations become an `INVALID_ARGS` isError result the model retries in-turn; a valid call records the value. + +Lifetime is refcounted with two kinds of holder: each backend acquires for its plugin lifetime (`apply`), and each structured RUN holds its own acquisition from start to settle — so unregistration can never precede a live run's settle, and the runtime disposes only when the last backend AND the last run are gone. `release()` is idempotent per acquisition. ### `depthOf(agent): number` diff --git a/packages/subagent/subagent-inprocess/package.json b/packages/subagent/subagent-inprocess/package.json index f3bd774554..41c46e00d3 100644 --- a/packages/subagent/subagent-inprocess/package.json +++ b/packages/subagent/subagent-inprocess/package.json @@ -26,6 +26,7 @@ "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-session": "^0.0.1", "@deepseek-ai/dsh-subagent": "^0.0.1", + "@deepseek-ai/dsh-tools": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "devDependencies": { diff --git a/packages/subagent/subagent-inprocess/src/index.ts b/packages/subagent/subagent-inprocess/src/index.ts index 4b8d2d4c99..4293505995 100644 --- a/packages/subagent/subagent-inprocess/src/index.ts +++ b/packages/subagent/subagent-inprocess/src/index.ts @@ -18,7 +18,22 @@ import type { Context } from 'cordis' import { AgentId, type Agent, type AgentHandle, type AgentOptions } from '@deepseek-ai/dsh-agent' import { SessionId, type SessionEvent, type TurnEndReason } from '@deepseek-ai/dsh-session' import type { ContentBlock } from '@deepseek-ai/dsh-llm' +import { assertSupportedOutputSchema } from '@deepseek-ai/dsh-tools' import type { SubagentResult, SubagentRun, SubagentStartRequest, SubagentStopReason } from '@deepseek-ai/dsh-subagent' +import { + acquireStructuredRuntime, + STRUCTURED_OUTPUT_INSTRUCTION, + STRUCTURED_OUTPUT_NUDGE, + type StructuredAcquisition, +} from './structured.ts' + +export { + acquireStructuredRuntime, + STRUCTURED_OUTPUT_TOOL, + STRUCTURED_OUTPUT_INSTRUCTION, + STRUCTURED_OUTPUT_NUDGE, + type StructuredAcquisition, +} from './structured.ts' declare module '@deepseek-ai/dsh-agent' { interface AgentOptions { @@ -76,6 +91,13 @@ export interface InProcessRunOptions { * parent's log (FORK), or `undefined` for a fresh child (SPAWN). */ readonly seed?: SessionEvent[] + /** + * How many times a structured run re-prompts a child that finished a turn + * cleanly WITHOUT calling `structured_output` (see the structured module). + * REQUIRED, resolved from the backend's validated Config — per the explicit- + * defaulting rule, the driver never fills it with a hidden fallback. + */ + readonly structuredNudgeRetries: number } /** @@ -98,6 +120,10 @@ export function startInProcessRun( if (request.maxDepth !== undefined && childDepth > request.maxDepth) { throw new SubagentDepthError(childDepth, request.maxDepth) } + // Assert the schema subset BEFORE any child exists (the service has already + // capability-gated; this rejects a schema outside the enforced subset loud). + const schema = request.outputSchema + if (schema !== undefined) assertSupportedOutputSchema(schema) const childId = AgentId(randomUUID()) // The child's OWN events begin after the seed (fork seeds the parent's @@ -109,13 +135,24 @@ export function startInProcessRun( // Inherit the parent's model by default (a child with no model cannot run); // an explicit `request.agentOptions.model` overrides it. The parent's // systemPrompt is NOT inherited — a fresh child is a clean specialist unless - // the caller supplies one. + // the caller supplies one. A structured run appends the structured_output + // instruction after whatever prompt the caller supplied. + const callerPrompt = request.agentOptions?.systemPrompt + const systemPrompt = schema === undefined + ? callerPrompt + : [callerPrompt, STRUCTURED_OUTPUT_INSTRUCTION].filter(text => text !== undefined && text.length > 0).join('\n\n') const agentOptions: AgentOptions = { ...request.parent.options.model !== undefined ? { model: request.parent.options.model } : {}, ...request.agentOptions, + ...systemPrompt !== undefined ? { systemPrompt } : {}, subagentDepth: childDepth, } + // The structured runtime is held for the WHOLE run (acquired before the child + // exists, released when the result settles), so a backend hot-reload mid-run + // cannot unregister the capture tool out from under this live child. + const structured: StructuredAcquisition | undefined = schema !== undefined ? acquireStructuredRuntime(ctx) : undefined + const handle: AgentHandle = ctx.agents.create({ agentId: childId, sessionId: SessionId(randomUUID()), @@ -130,6 +167,7 @@ export function startInProcessRun( agentOptions, }) const child = handle.agent + if (structured && schema !== undefined) structured.attach(child, schema) // Bridge the request's abort signal to the child (the consumer also bridges // its own exec.signal, but a backend-level bridge keeps the contract local). @@ -154,9 +192,30 @@ export function startInProcessRun( if (request.signal?.aborted) return { output: [], stopReason: 'aborted' } child.send(request.prompt) await child.whenIdle() - return readResult(child, seedLength, cancelled) + if (structured) { + // Nudge loop: a child that finished a turn CLEANLY without calling + // structured_output gets re-prompted, up to the backend-configured + // retry count. An errored/aborted turn is not nudged — its failure is + // the honest result. (This also covers a cancel: a cancelled turn ends + // `aborted`, and a pre-turn cancel leaves no `turn/end` at all, so + // neither reads `completed`.) + let nudges = options.structuredNudgeRetries + while ( + structured.captured(child) === undefined && nudges > 0 + && lastOwnTurnEnd(child, seedLength)?.data.reason.kind === 'completed' + ) { + nudges -= 1 + child.send([{ type: 'text', text: STRUCTURED_OUTPUT_NUDGE }]) + await child.whenIdle() + } + } + return readResult(child, seedLength, cancelled, structured ? { captured: structured.captured(child) } : undefined) } finally { request.signal?.removeEventListener('abort', onAbort) + if (structured) { + structured.detach(child) + structured.release() + } } })() @@ -173,6 +232,12 @@ export function startInProcessRun( } } +/** The child's OWN last `turn/end` event (events at or after `seedLength`), if any. */ +function lastOwnTurnEnd(child: Agent, seedLength: number): SessionEvent<'turn/end'> | undefined { + return child.session.events.slice(seedLength) + .findLast((e): e is SessionEvent<'turn/end'> => e.type === 'turn/end') +} + /** * Read a settled child's terminal result from its session log, scoped to the * child's OWN events (everything at or after `seedLength` — fork seeds the @@ -184,12 +249,29 @@ export function startInProcessRun( * logged (a cancel landed in the pre-turn window, before any turn ran), the * run settles `aborted` per the {@link SubagentRun.cancel} contract rather than * the generic no-turn `error`. + * + * A structured run (`structured` present) additionally reports the captured + * value on {@link SubagentResult.structured}. A structured child that finished + * CLEANLY without ever capturing (the nudges ran out) settles `error` — a clean + * finish without the demanded structured result is a failure, not a success + * with a missing field; a non-`completed` reason keeps its own honest mapping. */ -function readResult(child: Agent, seedLength: number, cancelled: boolean): SubagentResult { +function readResult( + child: Agent, + seedLength: number, + cancelled: boolean, + structured?: { captured?: { value: unknown } | undefined }, +): SubagentResult { const own = child.session.events.slice(seedLength) const lastMessage = own.findLast((e): e is SessionEvent<'assistant/message'> => e.type === 'assistant/message') const lastEnd = own.findLast((e): e is SessionEvent<'turn/end'> => e.type === 'turn/end') const output: ContentBlock[] = lastMessage ? structuredClone(lastMessage.data.content) : [] - if (lastEnd === undefined && cancelled) return { output, stopReason: 'aborted' } - return { output, stopReason: toStopReason(lastEnd?.data.reason) } + const stopReason: SubagentStopReason = lastEnd === undefined && cancelled + ? 'aborted' + : toStopReason(lastEnd?.data.reason) + if (structured) { + if (structured.captured) return { output, structured: structured.captured.value, stopReason } + if (stopReason === 'completed') return { output, stopReason: 'error' } + } + return { output, stopReason } } diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts new file mode 100644 index 0000000000..da371ac8f4 --- /dev/null +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -0,0 +1,193 @@ +/** + * Structured-output support for the in-process subagent backends: the mechanism + * behind `SubagentStartRequest.outputSchema` for children that run as agents on + * the same context. + * + * The model-facing surface is one globally registered `structured_output` tool + * whose REGISTERED parameters are a placeholder — the real schema is per run. + * Because the tool registry and prompt assembly are context-global while + * schemas differ per child (two concurrent structured runs may carry different + * schemas), per-agent shaping happens on the `agent/request` waterfall with a + * `prepend: true` listener that post-processes `await next()` — FINAL-REQUEST + * enforcement: whatever downstream listeners mutated or replaced, the request + * that hits the wire never carries `structured_output` for an agent without a + * structured run, and always carries the run's OWN schema for one that has it. + * (Cooperative mutate-then-`next()` would not survive a downstream listener + * returning a replacement request — see the waterfall composition caveat in + * docs/architecture.md.) + * + * A companion `agent/turn-continuation` listener stops a child's turn once its + * output is captured — without it, the loop's default "had tool calls ⇒ + * continue" buys a wasted extra model step per structured child. + * + * Lifetime is refcounted with two kinds of holder: each backend acquires for + * its plugin lifetime (so the tool exists before any run), and each structured + * RUN acquires from start to settle (so a backend hot-reload mid-run cannot + * unregister the capture tool out from under a live child). Registrations are + * effects on the ROOT context — their natural upper bound is app teardown — and + * the refcount disposes them when the last holder releases. + * + * @module @deepseek-ai/dsh-subagent-inprocess/structured + */ + +import type { Context } from 'cordis' +import type { Agent } from '@deepseek-ai/dsh-agent' +import type { ContentBlock, GenerateOptions, ToolSchema } from '@deepseek-ai/dsh-llm' +import type { ContinuationDecision } from '@deepseek-ai/dsh-agent' +import type { ToolExecution } from '@deepseek-ai/dsh-tools' +import { ToolArgsError, validateStructuredValue, type StructuredOutputSchema } from '@deepseek-ai/dsh-tools' + +/** The model-facing tool name a structured child must call to finish. */ +export const STRUCTURED_OUTPUT_TOOL = 'structured_output' + +/** The per-child instruction appended to a structured child's system prompt. */ +export const STRUCTURED_OUTPUT_INSTRUCTION + = 'When you have your final answer, you MUST report it by calling the ' + + `\`${STRUCTURED_OUTPUT_TOOL}\` tool with arguments matching its parameter schema exactly. ` + + 'Do not finish with a plain text answer: only the tool call counts as your result.' + +/** The nudge sent when a structured child finishes cleanly without calling the tool. */ +export const STRUCTURED_OUTPUT_NUDGE + = `You finished without calling \`${STRUCTURED_OUTPUT_TOOL}\`. ` + + `Call \`${STRUCTURED_OUTPUT_TOOL}\` now with your final result matching its parameter schema.` + +/** One structured run's state: the schema to enforce and the captured value, once recorded. */ +interface RunState { + readonly schema: StructuredOutputSchema + captured?: { value: unknown } +} + +/** The per-root-context runtime: run states plus the shared registrations. */ +interface StructuredRuntime { + refs: number + readonly states: WeakMap + readonly disposers: (() => void)[] +} + +/** One root context ⇒ one runtime (multi-app test isolation). */ +const runtimes = new WeakMap() + +/** + * One holder's handle on the shared structured runtime. `release()` is + * idempotent per acquisition; the runtime's registrations are disposed when the + * LAST holder (backend plugin or live run) releases. + */ +export interface StructuredAcquisition { + /** Enforce `schema` on `agent`'s requests and start capturing its `structured_output` call. */ + attach(agent: Agent, schema: StructuredOutputSchema): void + /** The captured value, once the child called the tool with valid arguments. */ + captured(agent: Agent): { value: unknown } | undefined + /** Stop enforcing/capturing for `agent` (WeakMap-backed; safe to call twice). */ + detach(agent: Agent): void + /** Drop this holder's reference (idempotent); the last release unregisters everything. */ + release(): void +} + +/** + * Acquire the per-root-context structured runtime, registering the capture tool + * and the two waterfall listeners on the FIRST acquisition. See the module doc + * for the enforcement and lifetime design. + * @param ctx - any context of the app; the runtime keys off `ctx.root`. + * @returns this holder's handle (attach/captured/detach + idempotent release). + */ +export function acquireStructuredRuntime(ctx: Context): StructuredAcquisition { + const root: Context = ctx.root + let runtime = runtimes.get(root) + if (!runtime) { + runtime = { refs: 0, states: new WeakMap(), disposers: [] } + runtimes.set(root, runtime) + registerRuntime(root, runtime) + } + runtime.refs += 1 + + let released = false + return { + attach(agent: Agent, schema: StructuredOutputSchema): void { + runtime.states.set(agent, { schema }) + }, + captured(agent: Agent): { value: unknown } | undefined { + return runtime.states.get(agent)?.captured + }, + detach(agent: Agent): void { + runtime.states.delete(agent) + }, + release(): void { + if (released) return + released = true + runtime.refs -= 1 + if (runtime.refs > 0) return + runtimes.delete(root) + for (const dispose of runtime.disposers.splice(0)) dispose() + }, + } +} + +/** Register the capture tool + the two listeners on the root context (first acquire). */ +function registerRuntime(root: Context, runtime: StructuredRuntime): void { + // The registered parameters are a PLACEHOLDER: the request listener below + // swaps in the run's real schema per child, and strips the tool entirely for + // every agent without a structured run — so this shape is never model-visible. + runtime.disposers.push(root.tools.register({ + name: STRUCTURED_OUTPUT_TOOL, + description: + 'Report your final structured result. Call this exactly once, when your answer is complete; ' + + 'the arguments must match this tool\'s parameter schema exactly.', + parameters: { type: 'object', properties: {} }, + execute(args: unknown, exec: ToolExecution): Promise { + const state = exec.agent ? runtime.states.get(exec.agent) : undefined + if (!state) { + // Reachable only if a non-structured agent somehow calls the tool (the + // request listener strips it, so the model never sees it) — fail loud + // rather than capture into nowhere. + throw new Error(`${STRUCTURED_OUTPUT_TOOL} is only available to subagents started with an output schema`) + } + const violations = validateStructuredValue(state.schema, args) + // ToolArgsError → isError result with INVALID_ARGS: the model retries + // within the same turn, exactly like a schema-validated defineTool call. + if (violations.length > 0) throw new ToolArgsError(violations) + state.captured = { value: args } + return Promise.resolve([{ type: 'text', text: 'Structured output recorded.' }]) + }, + })) + + // FINAL-REQUEST enforcement (prepend: true = first registered = OUTERMOST + // wrapper): post-process whatever the downstream listeners and the core + // produced, so a downstream listener returning a replacement request cannot + // leak the tool to other agents or erase the child's schema. + runtime.disposers.push(root.on('agent/request', async function ( + this: unknown, agent: Agent, _turn: number, _step: number, _options: GenerateOptions, next: () => Promise, + ): Promise { + const final = await next() + const state = runtime.states.get(agent) + if (state) { + const schemaEntry: ToolSchema = { + name: STRUCTURED_OUTPUT_TOOL, + description: + 'Report your final structured result. Call this exactly once, when your answer is complete; ' + + 'the arguments must match this tool\'s parameter schema exactly.', + // ToolSchema.parameters is the wire-level JSON Schema object; the + // asserted subset type is structurally exactly that. + parameters: state.schema as unknown as Record, + } + final.tools = [...(final.tools ?? []).filter(tool => tool.name !== STRUCTURED_OUTPUT_TOOL), schemaEntry] + return final + } + // No structured run: strip the placeholder if present; leave an absent + // tools field absent (an adapter may treat `tools: []` and no tools + // differently on the wire). + if (final.tools?.some(tool => tool.name === STRUCTURED_OUTPUT_TOOL)) { + final.tools = final.tools.filter(tool => tool.name !== STRUCTURED_OUTPUT_TOOL) + } + return final + }, { prepend: true })) + + // Stop a structured child's turn once its output is captured: the default + // "had tool calls ⇒ continue" would otherwise buy a wasted extra model step + // after every successful capture. + runtime.disposers.push(root.on('agent/turn-continuation', function ( + this: unknown, agent: Agent, _turn: number, _decision: ContinuationDecision, next: () => Promise, + ): Promise { + if (runtime.states.get(agent)?.captured) return Promise.resolve({ action: 'stop' }) + return next() + })) +} diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts new file mode 100644 index 0000000000..643000de2c --- /dev/null +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -0,0 +1,393 @@ +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import LlmService, { type GenerateOptions } from '@deepseek-ai/dsh-llm' +import SessionStore from '@deepseek-ai/dsh-session' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import AgentRegistry, { AgentId } from '@deepseek-ai/dsh-agent' +import AgentLoop from '@deepseek-ai/dsh-agent-loop' +import * as Invariants from '@deepseek-ai/dsh-invariants' +import SubagentService, { type SubagentStartRequest } from '@deepseek-ai/dsh-subagent' +import type { StructuredOutputSchema } from '@deepseek-ai/dsh-tools' +import { MockAdapter, textResponse, toolCallResponse } from '../../../core/agent-loop/tests/mock-adapter.ts' +import * as spawn from '../../subagent-spawn/src/index.ts' +import * as fork from '../../subagent-fork/src/index.ts' +import { + acquireStructuredRuntime, + STRUCTURED_OUTPUT_INSTRUCTION, + STRUCTURED_OUTPUT_TOOL, +} from '../src/structured.ts' + +type Script = ConstructorParameters[0] + +const SCHEMA: StructuredOutputSchema = { + type: 'object', + properties: { answer: { type: 'number' }, note: { type: 'string' } }, + required: ['answer'], +} + +/** + * Real loop + scripted mock model + the REAL spawn backend (which acquires the + * structured runtime at apply, exactly as shipped). The mock model script + * drives the child's structured_output calls. + */ +async function setup(script: Script, options?: { nudges?: number; withFork?: boolean }) { + const ctx = new Context() + const adapter = new MockAdapter(script) + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(Invariants) + await ctx.plugin(AgentLoop, { agents: [] }) + await ctx.plugin(SubagentService) + const fiber = await ctx.plugin(spawn, { providerName: 'spawn', structuredNudgeRetries: options?.nudges ?? 1 }) + const forkFiber = options?.withFork + ? await ctx.plugin(fork, { providerName: 'fork', structuredNudgeRetries: options?.nudges ?? 1 }) + : undefined + ctx.llm.registerAdapter(['mock'], adapter) + const parent = ctx.agentLoop.create(AgentId('parent'), { model: 'mock' }) + return { ctx, parent, adapter, fiber, forkFiber } +} + +function structuredRequest(parent: SubagentStartRequest['parent'], extra?: Partial): SubagentStartRequest { + return { prompt: [{ type: 'text', text: 'produce the answer' }], parent, outputSchema: SCHEMA, ...extra } +} + +/** The tool names of one recorded model request. */ +function toolNames(request: GenerateOptions): string[] { + return (request.tools ?? []).map(tool => tool.name) +} + +describe('in-process structured output', () => { + it('captures a valid structured_output call and surfaces result.structured', async () => { + const { ctx, parent } = await setup([ + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 42, note: 'done' }), + ]) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + const result = await run.result + expect(result.stopReason).toBe('completed') + expect(result.structured).toEqual({ answer: 42, note: 'done' }) + await run.dispose() + }) + + it('stops the turn after a successful capture — no extra model step is spent', async () => { + const { ctx, parent, adapter } = await setup([ + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 1 }), + textResponse('MUST NOT BE CONSUMED'), + ]) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + await run.result + // Default continuation would run a second step after the tool call; the + // structured runtime's turn-continuation veto stops the turn instead. + expect(adapter.requests.length).toBe(1) + await run.dispose() + }) + + it('an invalid call gets an INVALID_ARGS isError result and the model retries in-turn', async () => { + const { ctx, parent } = await setup([ + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 'not-a-number' }), + toolCallResponse('c2', STRUCTURED_OUTPUT_TOOL, { answer: 7 }), + ]) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + const result = await run.result + expect(result.structured).toEqual({ answer: 7 }) + expect(result.stopReason).toBe('completed') + // The child's log carries the isError tool/result for the invalid call. + const child = ctx.agents.get(run.id)! + const results = child.session.events.filter(e => e.type === 'tool/result') + expect(results.length).toBe(2) + expect((results[0]!.data as { isError?: boolean }).isError).toBe(true) + await run.dispose() + }) + + it('nudges a child that finished cleanly without calling the tool, then captures', async () => { + const { ctx, parent } = await setup([ + textResponse('here is my answer in prose'), + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 3 }), + ]) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + const result = await run.result + expect(result.structured).toEqual({ answer: 3 }) + expect(result.stopReason).toBe('completed') + // The nudge is a real user-visible message in the child's log. + const child = ctx.agents.get(run.id)! + const users = child.session.events.filter(e => e.type === 'user/message') + expect(users.length).toBe(2) + await run.dispose() + }) + + it('settles error when the nudges run out without a capture', async () => { + const { ctx, parent, adapter } = await setup([ + textResponse('prose only'), + textResponse('still prose'), + ], { nudges: 1 }) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + const result = await run.result + expect(result.stopReason).toBe('error') + expect(result.structured).toBeUndefined() + expect(adapter.requests.length).toBe(2) + await run.dispose() + }) + + it('zero nudge retries fails immediately after the first clean prose finish', async () => { + const { ctx, parent, adapter } = await setup([textResponse('prose')], { nudges: 0 }) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + const result = await run.result + expect(result.stopReason).toBe('error') + expect(adapter.requests.length).toBe(1) + await run.dispose() + }) + + it('a child that errored is NOT nudged (its failure is the honest result)', async () => { + // Script exhaustion on the first call → the child turn errors. + const { ctx, parent, adapter } = await setup([], { nudges: 3 }) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + const result = await run.result + expect(result.stopReason).toBe('error') + expect(adapter.requests.length).toBe(1) + await run.dispose() + }) + + it('rejects a schema outside the subset loud, before any child exists', async () => { + const { ctx, parent } = await setup([]) + expect(() => ctx.subagents.start('spawn', structuredRequest(parent, { + outputSchema: { type: 'object', oneOf: [] } as unknown as StructuredOutputSchema, + }))).toThrow(/unsupported output schema/) + expect(ctx.agents.get(AgentId('parent'))).toBeDefined() + }) + + it('appends the structured instruction to the child system prompt (caller prompt preserved)', async () => { + const { ctx, parent } = await setup([toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 1 })]) + const run = ctx.subagents.start('spawn', structuredRequest(parent, { + agentOptions: { systemPrompt: 'You are a counter.' }, + })) + await run.result + const child = ctx.agents.get(run.id)! + expect(child.options.systemPrompt).toBe(`You are a counter.\n\n${STRUCTURED_OUTPUT_INSTRUCTION}`) + await run.dispose() + }) + + it('a structured child WITHOUT a caller prompt gets exactly the instruction', async () => { + const { ctx, parent } = await setup([toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 1 })]) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + await run.result + const child = ctx.agents.get(run.id)! + expect(child.options.systemPrompt).toBe(STRUCTURED_OUTPUT_INSTRUCTION) + await run.dispose() + }) + + describe('final-request enforcement (the prepend agent/request listener)', () => { + it('a structured child sees structured_output with ITS schema; a plain agent never sees the tool', async () => { + const { ctx, parent, adapter } = await setup([ + // Parent turn (a plain agent): must NOT see the tool. + textResponse('parent answer'), + // Child turn: must see it, with the run's schema. + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 42 }), + ]) + parent.send([{ type: 'text', text: 'hello' }]) + await parent.whenIdle() + expect(toolNames(adapter.requests[0]!)).not.toContain(STRUCTURED_OUTPUT_TOOL) + + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + await run.result + const childRequest = adapter.requests[1]! + expect(toolNames(childRequest)).toContain(STRUCTURED_OUTPUT_TOOL) + const entry = childRequest.tools!.find(tool => tool.name === STRUCTURED_OUTPUT_TOOL)! + expect(entry.parameters).toEqual(SCHEMA) + await run.dispose() + }) + + it('two concurrent structured children each see their OWN schema', async () => { + const otherSchema: StructuredOutputSchema = { + type: 'object', + properties: { verdict: { type: 'string', enum: ['real', 'bogus'] } }, + required: ['verdict'], + } + const { ctx, parent, adapter } = await setup([ + (options: GenerateOptions) => { + // Answer with whatever schema this child was given — proves each + // request carried the right one regardless of scheduling order. + const entry = options.tools!.find(tool => tool.name === STRUCTURED_OUTPUT_TOOL)! + const args = 'verdict' in (entry.parameters.properties as Record) + ? { verdict: 'real' } + : { answer: 1 } + return toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, args) + }, + (options: GenerateOptions) => { + const entry = options.tools!.find(tool => tool.name === STRUCTURED_OUTPUT_TOOL)! + const args = 'verdict' in (entry.parameters.properties as Record) + ? { verdict: 'real' } + : { answer: 1 } + return toolCallResponse('c2', STRUCTURED_OUTPUT_TOOL, args) + }, + ]) + const runA = ctx.subagents.start('spawn', structuredRequest(parent)) + const runB = ctx.subagents.start('spawn', structuredRequest(parent, { outputSchema: otherSchema })) + const [a, b] = await Promise.all([runA.result, runB.result]) + expect(a.structured).toEqual({ answer: 1 }) + expect(b.structured).toEqual({ verdict: 'real' }) + const schemas = adapter.requests.map(request => + request.tools!.find(tool => tool.name === STRUCTURED_OUTPUT_TOOL)!.parameters) + expect(schemas).toContainEqual(SCHEMA) + expect(schemas).toContainEqual(otherSchema) + await runA.dispose() + await runB.dispose() + }) + + it('wins against a downstream listener that REPLACES the request object', async () => { + const { ctx, parent, adapter } = await setup([ + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 5 }), + ]) + // A downstream (non-prepend) listener that returns a brand-new request — + // the composition caveat that erases cooperative mutations. Registered + // AFTER the runtime's prepend listener, so it runs INSIDE it. + ctx.on('agent/request', async (_agent, _turn, _step, _options, next) => { + const replaced = await next() + return { ...replaced, tools: [...(replaced.tools ?? [])] } + }) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + const result = await run.result + expect(result.structured).toEqual({ answer: 5 }) + const entry = adapter.requests[0]!.tools!.find(tool => tool.name === STRUCTURED_OUTPUT_TOOL) + expect(entry).toBeDefined() + expect(entry!.parameters).toEqual(SCHEMA) + await run.dispose() + }) + + it('a non-structured agent request keeps tools ABSENT when it had none (no tools: [] materialized)', async () => { + const { parent, adapter } = await setup([ + // The registry contributes the placeholder via prompt assembly, so + // tools is an array in the raw request — but after stripping the + // placeholder (its ONLY entry), the field must not be re-added as a + // different shape. + textResponse('plain'), + ]) + parent.send([{ type: 'text', text: 'q' }]) + await parent.whenIdle() + const request = adapter.requests[0]! + expect(toolNames(request)).not.toContain(STRUCTURED_OUTPUT_TOOL) + await new Promise(resolve => setTimeout(resolve, 0)) + }) + + it('handles a request with NO tools field at all, for plain and structured agents alike', async () => { + // Drive the waterfall directly with a toolless request — the enforcement + // listener must tolerate `tools: undefined` on both branches: leave it + // absent for a plain agent, and create the array for a structured child. + const { ctx, parent } = await setup([]) + const bare: GenerateOptions = { model: 'mock', messages: [] } + const plain = await ctx.waterfall('agent/request', parent, 1, 1, bare, () => Promise.resolve(bare)) + expect(plain.tools).toBeUndefined() + + const acquisition = acquireStructuredRuntime(ctx) + acquisition.attach(parent, SCHEMA) + const bare2: GenerateOptions = { model: 'mock', messages: [] } + const shaped = await ctx.waterfall('agent/request', parent, 1, 1, bare2, () => Promise.resolve(bare2)) + expect(shaped.tools!.map(tool => tool.name)).toEqual([STRUCTURED_OUTPUT_TOOL]) + acquisition.detach(parent) + acquisition.release() + }) + }) + + describe('runtime lifetime (refcount: backends + live runs)', () => { + it('registers the capture tool while a backend is loaded and unregisters when the last unloads', async () => { + const { ctx, fiber, forkFiber } = await setup([], { withFork: true }) + expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeDefined() + await fiber.dispose() + // fork still holds a reference. + expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeDefined() + await forkFiber!.dispose() + expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeUndefined() + }) + + it('a live run-level acquisition keeps the runtime registered after EVERY backend unloads', async () => { + // Simulates the run-holder half of the two-level lifetime: a structured + // run acquires at start and releases at settle, so registration ordering + // is settle-then-unregister even if all backends unload first. (A real + // in-process child dies WITH its backend's fiber — the acquisition's + // observable job is this ordering, which a manual holder pins directly.) + const { ctx, fiber, forkFiber } = await setup([], { withFork: true }) + const runHolder = acquireStructuredRuntime(ctx) + await fiber.dispose() + await forkFiber!.dispose() + expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeDefined() + runHolder.release() + expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeUndefined() + }) + + it('a structured run releases its acquisition when it settles (backend unload mid-run)', async () => { + const { ctx, parent, fiber } = await setup(['hang']) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + // Let the child's step start streaming, then unload the backend. The + // backend owns the child agent, so the unload tears the child down and + // the run settles — releasing its own acquisition on the way out. + await new Promise(resolve => setTimeout(resolve, 30)) + await fiber.dispose() + const result = await run.result + expect(result.stopReason).toBe('error') + // Both holders (backend + run) released — nothing keeps the runtime now. + expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeUndefined() + await run.dispose() + }) + + it('fork children capture structured output through the same runtime', async () => { + const { ctx, parent } = await setup([ + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 9 }), + ], { withFork: true }) + const run = ctx.subagents.start('fork', structuredRequest(parent)) + const result = await run.result + expect(result.structured).toEqual({ answer: 9 }) + await run.dispose() + }) + + it('acquisition release is idempotent (double release cannot underflow the refcount)', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + const first = acquireStructuredRuntime(ctx) + const second = acquireStructuredRuntime(ctx) + first.release() + first.release() + // The second holder still keeps the tool registered. + expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeDefined() + second.release() + expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeUndefined() + }) + + it('attach/captured/detach manage per-agent state through the acquisition surface', async () => { + const { ctx, parent } = await setup([]) + const acquisition = acquireStructuredRuntime(ctx) + expect(acquisition.captured(parent)).toBeUndefined() + acquisition.attach(parent, SCHEMA) + expect(acquisition.captured(parent)).toBeUndefined() + acquisition.detach(parent) + acquisition.detach(parent) + acquisition.release() + // The backend still holds its own reference from setup(). + expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeDefined() + }) + }) + + it('a direct structured_output call from an agent WITHOUT a structured run is an isError', async () => { + const { ctx, parent } = await setup([]) + const result = await ctx.tools.execute({ + callId: 'x' as never, + name: STRUCTURED_OUTPUT_TOOL, + arguments: { answer: 1 }, + agent: parent, + }) + expect(result.isError).toBe(true) + expect(result.content[0]).toMatchObject({ type: 'text' }) + }) + + it('a structured_output call with NO calling agent at all is an isError', async () => { + const { ctx } = await setup([]) + const result = await ctx.tools.execute({ + callId: 'x' as never, + name: STRUCTURED_OUTPUT_TOOL, + arguments: { answer: 1 }, + }) + expect(result.isError).toBe(true) + }) +}) diff --git a/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts b/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts index 7219e03988..d3870ae51a 100644 --- a/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts @@ -51,7 +51,7 @@ describe('depthOf', () => { describe('startInProcessRun', () => { it('drives a fresh child (no seed) to completion and returns its output', async () => { const { ctx, parent } = await setup([textResponse('driver child answer')]) - const run = startInProcessRun(ctx, { prompt: [{ type: 'text', text: 'do X' }], parent }, { providerName: 'spawn' }) + const run = startInProcessRun(ctx, { prompt: [{ type: 'text', text: 'do X' }], parent }, { providerName: 'spawn', structuredNudgeRetries: 1 }) const result = await run.result expect(result.stopReason).toBe('completed') expect(text(result.output)).toBe('driver child answer') @@ -61,7 +61,7 @@ describe('startInProcessRun', () => { it('throws SubagentDepthError when the child would exceed maxDepth', async () => { const { ctx, parent } = await setup([]) - expect(() => startInProcessRun(ctx, { prompt: [{ type: 'text', text: 'p' }], parent, maxDepth: 0 }, { providerName: 'spawn' })) + expect(() => startInProcessRun(ctx, { prompt: [{ type: 'text', text: 'p' }], parent, maxDepth: 0 }, { providerName: 'spawn', structuredNudgeRetries: 1 })) .toThrow(SubagentDepthError) }) @@ -73,7 +73,7 @@ describe('startInProcessRun', () => { parent.send([{ type: 'text', text: 'parent q' }]) await parent.whenIdle() const seed = parent.session.events.slice() - const run = startInProcessRun(ctx, { prompt: [{ type: 'text', text: 'child q' }], parent }, { providerName: 'fork', seed }) + const run = startInProcessRun(ctx, { prompt: [{ type: 'text', text: 'child q' }], parent }, { providerName: 'fork', structuredNudgeRetries: 1, seed }) const result = await run.result expect(result.stopReason).toBe('completed') expect(text(result.output)).toBe('seeded child reply') diff --git a/packages/subagent/subagent-inprocess/tsconfig.json b/packages/subagent/subagent-inprocess/tsconfig.json index 4cb435d4fb..a52684ee6e 100644 --- a/packages/subagent/subagent-inprocess/tsconfig.json +++ b/packages/subagent/subagent-inprocess/tsconfig.json @@ -25,6 +25,9 @@ }, { "path": "../subagent" + }, + { + "path": "../../core/tools" } ] } diff --git a/packages/subagent/subagent-spawn/README.md b/packages/subagent/subagent-spawn/README.md index 97dfae9304..059c996215 100644 --- a/packages/subagent/subagent-spawn/README.md +++ b/packages/subagent/subagent-spawn/README.md @@ -6,14 +6,15 @@ The run mechanics live in the shared [`@deepseek-ai/dsh-subagent-inprocess`](../ ## What it does -`start(request)` delegates to `startInProcessRun(ctx, request, { providerName })` with no seed: a fresh child agent with the parent's `cwd`/`parentSession` lineage and (by default) the parent's model. See the [driver README](../subagent-inprocess/README.md) for the full lifecycle (depth check, one-shot drive, result read, dispose). +`start(request)` delegates to `startInProcessRun(ctx, request, { providerName, structuredNudgeRetries })` with no seed: a fresh child agent with the parent's `cwd`/`parentSession` lineage and (by default) the parent's model. See the [driver README](../subagent-inprocess/README.md) for the full lifecycle (depth check, one-shot drive, result read, dispose). ## Capabilities -`{ outputSchema: false, depthLimit: true, toolFilter: false }`. It constructs the child, so it enforces a recursion cap; structured output and tool-scoping are deferred (the service rejects a request needing either before `start` runs). +`{ outputSchema: true, depthLimit: true, toolFilter: false }`. It constructs the child, so it enforces a recursion cap, and it supports structured output via the driver's shared [structured runtime](../subagent-inprocess/README.md) (the backend acquires it for its plugin lifetime; each structured run holds its own acquisition until it settles). Tool-scoping is deferred (the service rejects a request needing it before `start` runs). ## Config | Key | Meaning | |---|---| | `providerName` | Registry name on `ctx.subagents` (default `spawn`). | +| `structuredNudgeRetries` | How many times a structured run re-prompts a child that finished cleanly without calling `structured_output` (default 1). | diff --git a/packages/subagent/subagent-spawn/src/index.ts b/packages/subagent/subagent-spawn/src/index.ts index 2ea082e20a..fdd57fd62a 100644 --- a/packages/subagent/subagent-spawn/src/index.ts +++ b/packages/subagent/subagent-spawn/src/index.ts @@ -9,6 +9,11 @@ * ({@link startInProcessRun}); this backend just passes NO seed (a fresh * child). The fork backend is an independent peer over the same driver. * + * Structured output (`outputSchema`) is supported via the driver's shared + * structured runtime: the backend acquires it for its plugin lifetime (so the + * capture tool and request-shaping listeners exist before any run), and each + * structured run holds its own acquisition until it settles. + * * Plugin export shape: named `name`/`inject`/`Config`/`apply`, NO default. * * @module @deepseek-ai/dsh-subagent-spawn @@ -17,38 +22,61 @@ import type { Context } from 'cordis' import z from 'schemastery' import type { SubagentCapabilities, SubagentProvider, SubagentStartRequest } from '@deepseek-ai/dsh-subagent' -import { startInProcessRun } from '@deepseek-ai/dsh-subagent-inprocess' +import { acquireStructuredRuntime, startInProcessRun } from '@deepseek-ai/dsh-subagent-inprocess' export const name = 'subagent-spawn' -export const inject = ['subagents', 'agents'] +export const inject = ['subagents', 'agents', 'tools'] -/** Config: the registry name to register the provider under. */ +/** Config: the registry name to register the provider under, plus structured-run tuning. */ export interface Config { /** Provider name on `ctx.subagents` (default `spawn`). */ providerName: string + /** + * How many times a structured run re-prompts a child that finished cleanly + * without calling `structured_output` before giving up (default 1). + */ + structuredNudgeRetries: number } export const Config: z = z.object({ providerName: z.string().default('spawn'), + structuredNudgeRetries: z.natural().default(1), }) /** * The spawn provider. Supports `depthLimit` (it constructs the child, so it can - * enforce a recursion cap) but NOT `outputSchema` or `toolFilter` in this cut — - * a request that needs either is rejected by the service before `start` runs. + * enforce a recursion cap) and `outputSchema` (via the shared in-process + * structured runtime); NOT `toolFilter` in this cut — a request that needs it + * is rejected by the service before `start` runs. */ class SpawnProvider implements SubagentProvider { - readonly capabilities: SubagentCapabilities = { outputSchema: false, depthLimit: true, toolFilter: false } + readonly capabilities: SubagentCapabilities = { outputSchema: true, depthLimit: true, toolFilter: false } - constructor(readonly name: string, private readonly ctx: Context) {} + constructor( + readonly name: string, + private readonly ctx: Context, + private readonly structuredNudgeRetries: number, + ) {} start(request: SubagentStartRequest) { // Fresh child: no seed. The shared driver mints ids, stamps cwd/lineage/ - // depth, drives the one-shot, and maps the result. - return startInProcessRun(this.ctx, request, { providerName: this.name }) + // depth, drives the one-shot (including the structured capture/nudge loop + // when the request carries an outputSchema), and maps the result. + return startInProcessRun(this.ctx, request, { + providerName: this.name, + structuredNudgeRetries: this.structuredNudgeRetries, + }) } } export function apply(ctx: Context, config: Config): void { - ctx.subagents.registerProvider(new SpawnProvider(config.providerName, ctx)) + // Hold the structured runtime for the plugin's lifetime, so the capture tool + // and its request-shaping listeners are registered before the first + // structured run and torn down when the last backend unloads (live runs hold + // their own acquisitions, so an unload mid-run cannot strand a child). + ctx.effect(() => { + const acquisition = acquireStructuredRuntime(ctx) + return () => { acquisition.release() } + }, 'subagent-spawn structured runtime') + ctx.subagents.registerProvider(new SpawnProvider(config.providerName, ctx, config.structuredNudgeRetries)) } diff --git a/packages/subagent/subagent-spawn/tests/harness.ts b/packages/subagent/subagent-spawn/tests/harness.ts index ff551cfc3f..cb66a326a6 100644 --- a/packages/subagent/subagent-spawn/tests/harness.ts +++ b/packages/subagent/subagent-spawn/tests/harness.ts @@ -31,7 +31,7 @@ export async function spawnHarness(workdir: string): Promise { await ctx.plugin(LocalBashExecutor, { cwd: workdir, timeoutMs: 30_000 }) await ctx.plugin(ToolBash) await ctx.plugin(SubagentService) - await ctx.plugin(Spawn, { providerName: 'spawn' }) + await ctx.plugin(Spawn, { providerName: 'spawn', structuredNudgeRetries: 1 }) // The model-facing subagent tool, bound to the spawn backend. await ctx.plugin(ToolSubagent, { provider: 'spawn' }) return ctx diff --git a/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts b/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts index ccfd6492f4..eaddeae201 100644 --- a/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts +++ b/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts @@ -34,7 +34,7 @@ async function setup(script: Script) { await ctx.plugin(Invariants) await ctx.plugin(AgentLoop, { agents: [] }) await ctx.plugin(SubagentService) - await ctx.plugin(spawn, { providerName: 'spawn' }) + await ctx.plugin(spawn, { providerName: 'spawn', structuredNudgeRetries: 1 }) ctx.llm.registerAdapter(['mock'], adapter) const parent = ctx.agentLoop.create(AgentId('parent'), { model: 'mock' }) return { ctx, parent, adapter } @@ -241,17 +241,21 @@ describe('dsh-subagent-spawn', () => { await parentHandle.dispose() }) - it('advertises depthLimit but not outputSchema/toolFilter', async () => { + it('advertises depthLimit and outputSchema but not toolFilter', async () => { const { ctx } = await setup([]) const provider = ctx.subagents.getProvider('spawn')! - expect(provider.capabilities).toEqual({ outputSchema: false, depthLimit: true, toolFilter: false }) + expect(provider.capabilities).toEqual({ outputSchema: true, depthLimit: true, toolFilter: false }) }) it('unregisters the provider when its fiber is disposed (HMR safety)', async () => { const ctx = new Context() await ctx.plugin(SubagentService) await ctx.plugin(AgentRegistry) - const fiber = await ctx.plugin(spawn, { providerName: 'spawn' }) + // The backend injects 'tools' for the structured runtime, so the registry + // (and its systemPrompt dependency) must be live for the fiber to activate. + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + const fiber = await ctx.plugin(spawn, { providerName: 'spawn', structuredNudgeRetries: 1 }) expect(ctx.subagents.list()).toEqual(['spawn']) await fiber.dispose() expect(ctx.subagents.list()).toEqual([]) @@ -260,12 +264,12 @@ describe('dsh-subagent-spawn', () => { it('has the namespace-plugin export shape (no stray default)', () => { expect('default' in spawn).toBe(false) expect(spawn.name).toBe('subagent-spawn') - expect(spawn.inject).toEqual(['subagents', 'agents']) + expect(spawn.inject).toEqual(['subagents', 'agents', 'tools']) const loader = Object.create(Loader.prototype) as Loader const unwrapped = loader.unwrapExports(spawn) as Record expect(unwrapped).toBe(spawn) expect(unwrapped.name).toBe('subagent-spawn') - expect(unwrapped.inject).toEqual(['subagents', 'agents']) + expect(unwrapped.inject).toEqual(['subagents', 'agents', 'tools']) expect(typeof unwrapped.apply).toBe('function') }) }) diff --git a/packages/subagent/subagent/src/types.ts b/packages/subagent/subagent/src/types.ts index fb60d5667c..16e6cd5237 100644 --- a/packages/subagent/subagent/src/types.ts +++ b/packages/subagent/subagent/src/types.ts @@ -8,7 +8,7 @@ import type { Agent, AgentId, AgentOptions } from '@deepseek-ai/dsh-agent' import type { ContentBlock } from '@deepseek-ai/dsh-llm' -import type { SchemaSpec } from '@deepseek-ai/dsh-tools' +import type { StructuredOutputSchema } from '@deepseek-ai/dsh-tools' /** * Which START-TIME features a provider supports. Checked by the service @@ -56,12 +56,16 @@ export interface SubagentStartRequest { /** Per-child agent options (model, system prompt). */ agentOptions?: AgentOptions /** - * Optional structured-output schema. When set AND the provider's - * {@link SubagentCapabilities.outputSchema} is `true`, the child's final - * answer is shaped to this schema and surfaced as {@link SubagentResult.structured}. + * Optional structured-output schema — an object-rooted JSON Schema within the + * enforced subset (see `assertSupportedOutputSchema` in dsh-tools; a schema + * outside the subset is rejected loud at start). When set AND the provider's + * {@link SubagentCapabilities.outputSchema} is `true`, the child is driven to + * report a value matching this schema, surfaced as + * {@link SubagentResult.structured}. The schema must be plain host-realm JSON + * data — a caller holding foreign-realm data materializes it first. * Requesting it against a provider that lacks the capability is rejected at start. */ - outputSchema?: SchemaSpec + outputSchema?: StructuredOutputSchema /** * Optional recursion cap (max delegation depth below this child). Requires * {@link SubagentCapabilities.depthLimit}; rejected at start otherwise. diff --git a/packages/subagent/subagent/tests/service.spec.ts b/packages/subagent/subagent/tests/service.spec.ts index 3a8807ad0d..4e1c5b1bfd 100644 --- a/packages/subagent/subagent/tests/service.spec.ts +++ b/packages/subagent/subagent/tests/service.spec.ts @@ -124,7 +124,7 @@ describe('SubagentService', () => { describe('start-time capability validation (fail loud, before any child)', () => { it.each([ - { field: 'outputSchema', request: baseRequest({ outputSchema: { x: { type: 'string' } } }) }, + { field: 'outputSchema', request: baseRequest({ outputSchema: { type: 'object', properties: { x: { type: 'string' } } } }) }, { field: 'maxDepth', request: baseRequest({ maxDepth: 2 }) }, { field: 'toolFilter', request: baseRequest({ toolFilter: { deny: ['bash'] } }) }, ])('rejects $field against a provider that lacks the capability — before start() runs', ({ request }) => { @@ -149,7 +149,7 @@ describe('SubagentService', () => { await ctx.plugin(SubagentService) const provider = new StubProvider('strong', ALL_CAPS) ctx.subagents.registerProvider(provider) - ctx.subagents.start('strong', baseRequest({ outputSchema: { x: { type: 'string' } }, maxDepth: 1 })) + ctx.subagents.start('strong', baseRequest({ outputSchema: { type: 'object', properties: { x: { type: 'string' } } }, maxDepth: 1 })) expect(provider.startCount).toBe(1) }) }) diff --git a/packages/support/subagent-mock/tests/subagent-mock.spec.ts b/packages/support/subagent-mock/tests/subagent-mock.spec.ts index f35ed884eb..ddd725da4b 100644 --- a/packages/support/subagent-mock/tests/subagent-mock.spec.ts +++ b/packages/support/subagent-mock/tests/subagent-mock.spec.ts @@ -41,13 +41,13 @@ describe('dsh-subagent-mock', () => { it('surfaces a structured result when the request carries an outputSchema', async () => { const ctx = await mount({ reply: 'r', structured: { answer: 42 } }) - const run = ctx.subagents.start('mock', baseRequest({ outputSchema: { answer: { type: 'number' } } })) + const run = ctx.subagents.start('mock', baseRequest({ outputSchema: { type: 'object', properties: { answer: { type: 'number' } } } })) await expect(run.result).resolves.toMatchObject({ structured: { answer: 42 } }) }) it('defaults structured output to { reply } when outputSchema is requested but no structured value is configured', async () => { const ctx = await mount({ reply: 'fallback reply' }) - const run = ctx.subagents.start('mock', baseRequest({ outputSchema: { answer: { type: 'number' } } })) + const run = ctx.subagents.start('mock', baseRequest({ outputSchema: { type: 'object', properties: { answer: { type: 'number' } } } })) await expect(run.result).resolves.toMatchObject({ structured: { reply: 'fallback reply' } }) }) From 1d43ea3cd5c09880dcbf3fbfbe3b90777a00d094 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 5 Jul 2026 13:29:35 +0800 Subject: [PATCH 008/232] =?UTF-8?q?workflow:=20dynamic=20workflows=20?= =?UTF-8?q?=E2=80=94=20script-driven=20multi-agent=20orchestration?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A new capability family at packages/workflow/ in the bash seam shape, modeled on Claude Code's dynamic workflows: the model writes a JavaScript orchestration script (export const meta = {...} + plain-JS body), a runtime executes it, and the script — not the conversation — holds the loop, the branching, and the intermediate results. - dsh-workflow (ctx.workflows): abstract WorkflowService + run vocabulary (WorkflowRun whose result NEVER rejects) + observe-only workflow/* events carrying data snapshots (id + meta, never the live run), per-listener contained like subagent/*. - dsh-workflow-vm: in-process node:vm engine. Meta extraction via a string/comment-aware scanner (template interpolation rejected; literal evaluated alone in an empty timed context; statement blanked line- preservingly so stacks keep script line numbers). Hooks: agent(prompt, {label, phase, schema, model}) over ctx.subagents, parallel(), pipeline() (no cross-stage barrier), phase(), log(), args. Fatal-vs-null discipline: hook misuse (unknown/deferred options, bad arguments, unsupported schemas, tripped caps, seam start failures, cancellation) throws fatal WorkflowErrors the combinators RE-THROW — never dissolved into the per-item null reserved for child failures. Realm boundary: inbound values materialized by descriptor walks that never invoke accessors (defineProperty copies, __proto__-safe); outbound values rebuilt in-realm via the context's own JSON.parse. Determinism bans (Date.now/Math.random/argless new Date) kept so future resume support cannot break scripts. Caps and timeouts are validated Config. Every hook promise carries a no-op rejection consumer (app-boot exits on unhandled rejections). - dsh-tool-workflow: the model-facing workflow tool, synchronous like dsh-tool-subagent (start → await → try/finally dispose; abort bridged; non-completed → isError). Generic render card titled by a textual meta.name sniff. The tool description carries the authoring contract. Wired into examples/{coding-agent,acp-agent} with explicit-ask-only guidance. Coverage at every tier: unit (meta scanner, materializer incl. counting-getter and __proto__ regressions, combinator semantics, concurrency ceiling, caps, cancellation, no-unhandled-rejection abandon), integration over the real spawn stack, with-key e2e (real two-phase run + the tool through the registry pipeline), and a recorded ACP snapshot scenario (workflow-run, 1 child session). RFC: docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md (deferred work explicitly listed). AGENTS.md budget 1575 → 1590 for the new group's layout line. --- AGENTS.md | 1 + docs/architecture.md | 1 + docs/cordis-catalog/events.md | 62 ++ docs/cordis-catalog/services.md | 16 + docs/core-data-structures/workflow.md | 68 ++ docs/module-graph.md | 16 + docs/rfc/README.md | 1 + .../feature/2026-07-05-dynamic-workflows.md | 58 ++ docs/tool-catalog/tools.md | 39 ++ examples/acp-agent/cordis.yml | 18 + examples/acp-agent/tests/acp.snapshot.ts | 4 + .../tests/snapshots/workflow-run/input.json | 7 + .../snapshots/workflow-run/session.1.jsonl | 37 ++ .../snapshots/workflow-run/session.jsonl | 152 +++++ .../workflow-run/stdout.golden.jsonl | 75 +++ examples/coding-agent/cordis.yml | 20 +- knip.json | 141 +++- packages/README.md | 1 + .../core/tools/tests/gen-tool-catalog.spec.ts | 2 +- .../subagent/subagent-inprocess/package.json | 2 + .../tests/structured.spec.ts | 4 +- packages/workflow/README.md | 13 + packages/workflow/tool-workflow/README.md | 22 + packages/workflow/tool-workflow/package.json | 43 ++ packages/workflow/tool-workflow/src/index.ts | 179 +++++ .../tool-workflow/tests/tool-workflow.spec.ts | 224 +++++++ packages/workflow/tool-workflow/tsconfig.json | 33 + packages/workflow/workflow-vm/README.md | 30 + packages/workflow/workflow-vm/package.json | 50 ++ packages/workflow/workflow-vm/src/index.ts | 166 +++++ packages/workflow/workflow-vm/src/meta.ts | 198 ++++++ packages/workflow/workflow-vm/src/realm.ts | 142 ++++ packages/workflow/workflow-vm/src/runtime.ts | 499 ++++++++++++++ .../workflow-vm/tests/integration.spec.ts | 89 +++ .../workflow/workflow-vm/tests/meta.spec.ts | 143 ++++ .../workflow/workflow-vm/tests/realm.spec.ts | 114 ++++ .../workflow-vm/tests/workflow-vm.spec.ts | 614 ++++++++++++++++++ .../workflow-vm/tests/workflow.e2e.ts | 131 ++++ packages/workflow/workflow-vm/tsconfig.json | 39 ++ packages/workflow/workflow/README.md | 29 + packages/workflow/workflow/package.json | 37 ++ packages/workflow/workflow/src/index.ts | 224 +++++++ packages/workflow/workflow/src/types.ts | 154 +++++ .../workflow/workflow/tests/workflow.spec.ts | 86 +++ packages/workflow/workflow/tsconfig.json | 27 + pnpm-lock.yaml | 95 +++ scripts/doc-budgets.manifest.json | 2 +- scripts/gen-tool-catalog.ts | 16 + scripts/type-equiv.manifest.json | 437 ++++++++++--- tsconfig.base.json | 1 + tsconfig.build.json | 3 + tsconfig.json | 3 + 52 files changed, 4459 insertions(+), 109 deletions(-) create mode 100644 docs/core-data-structures/workflow.md create mode 100644 docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md create mode 100644 examples/acp-agent/tests/snapshots/workflow-run/input.json create mode 100644 examples/acp-agent/tests/snapshots/workflow-run/session.1.jsonl create mode 100644 examples/acp-agent/tests/snapshots/workflow-run/session.jsonl create mode 100644 examples/acp-agent/tests/snapshots/workflow-run/stdout.golden.jsonl create mode 100644 packages/workflow/README.md create mode 100644 packages/workflow/tool-workflow/README.md create mode 100644 packages/workflow/tool-workflow/package.json create mode 100644 packages/workflow/tool-workflow/src/index.ts create mode 100644 packages/workflow/tool-workflow/tests/tool-workflow.spec.ts create mode 100644 packages/workflow/tool-workflow/tsconfig.json create mode 100644 packages/workflow/workflow-vm/README.md create mode 100644 packages/workflow/workflow-vm/package.json create mode 100644 packages/workflow/workflow-vm/src/index.ts create mode 100644 packages/workflow/workflow-vm/src/meta.ts create mode 100644 packages/workflow/workflow-vm/src/realm.ts create mode 100644 packages/workflow/workflow-vm/src/runtime.ts create mode 100644 packages/workflow/workflow-vm/tests/integration.spec.ts create mode 100644 packages/workflow/workflow-vm/tests/meta.spec.ts create mode 100644 packages/workflow/workflow-vm/tests/realm.spec.ts create mode 100644 packages/workflow/workflow-vm/tests/workflow-vm.spec.ts create mode 100644 packages/workflow/workflow-vm/tests/workflow.e2e.ts create mode 100644 packages/workflow/workflow-vm/tsconfig.json create mode 100644 packages/workflow/workflow/README.md create mode 100644 packages/workflow/workflow/package.json create mode 100644 packages/workflow/workflow/src/index.ts create mode 100644 packages/workflow/workflow/src/types.ts create mode 100644 packages/workflow/workflow/tests/workflow.spec.ts create mode 100644 packages/workflow/workflow/tsconfig.json diff --git a/AGENTS.md b/AGENTS.md index ef3526d6fe..f7b750e430 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -18,6 +18,7 @@ packages/ Harness packages at packages///, all named @deepseek-ai web/ web seam + search/fetch providers + model-facing web tools compact/ compaction seam + basic backend subagent/ subagent seam + spawn/fork/ACP backends + delegation tool + workflow/ workflow seam + node:vm script engine + the workflow tool todo/ the todo_write tool hooks/ Claude Code / Codex hook bridges + shared wire-protocol library session-persistence/ persistence seam + JSONL/SQLite backends diff --git a/docs/architecture.md b/docs/architecture.md index f1f44033a1..47d11d897c 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -43,6 +43,7 @@ Dependency rule: extension plugins depend on interfaces, never on `dsh-agent-loo | `ctx.compact` | dsh-compact | compaction: detect pressure, summarize an older range | | `ctx.web` | dsh-web | search/fetch provider registries + `WebError` taxonomy | | `ctx.subagents` | dsh-subagent | named provider registry for delegating to child agents | +| `ctx.workflows` | dsh-workflow | script-driven multi-agent orchestration: `start()` runs a workflow script | All registrations go through `ctx.effect()` and return disposers, so hot-reload and fiber disposal clean up automatically (full service interfaces: the generated [services catalog](cordis-catalog/services.md)). diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index c85b459069..463c7e06b2 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -313,6 +313,68 @@ Types: [ToolExecution](../core-data-structures/tools.md) Source: [`packages/core/tools/src/index.ts:76`](../../packages/core/tools/src/index.ts) +## `workflow/*` + +### `workflow/agent-end` — emit + +One `agent()` call settled (clean result, child failure, or run cancellation). Paired with Events['workflow/agent-start']. + +```ts cordis-catalog +'workflow/agent-end'(info: WorkflowRunInfo, agent: WorkflowAgentEndInfo): void +``` + +Source: [`packages/workflow/workflow/src/index.ts:91`](../../packages/workflow/workflow/src/index.ts) + +### `workflow/agent-start` — emit + +One `agent()` call started a child run. Paired with Events['workflow/agent-end'] by `agent.seq`. + +```ts cordis-catalog +'workflow/agent-start'(info: WorkflowRunInfo, agent: WorkflowAgentInfo): void +``` + +Source: [`packages/workflow/workflow/src/index.ts:83`](../../packages/workflow/workflow/src/index.ts) + +### `workflow/end` — emit + +A workflow run settled (any stop reason). Fired when WorkflowRun.result resolves. Paired with Events['workflow/start']. + +```ts cordis-catalog +'workflow/end'(info: WorkflowRunInfo, result: WorkflowResultInfo): void +``` + +Source: [`packages/workflow/workflow/src/index.ts:101`](../../packages/workflow/workflow/src/index.ts) + +### `workflow/log` — emit + +The script emitted a narration line (a `log(message)` call). + +```ts cordis-catalog +'workflow/log'(info: WorkflowRunInfo, message: string): void +``` + +Source: [`packages/workflow/workflow/src/index.ts:75`](../../packages/workflow/workflow/src/index.ts) + +### `workflow/phase` — emit + +The script entered a phase (a `phase(title)` call) — progress grouping for observers; no execution semantics. + +```ts cordis-catalog +'workflow/phase'(info: WorkflowRunInfo, title: string): void +``` + +Source: [`packages/workflow/workflow/src/index.ts:68`](../../packages/workflow/workflow/src/index.ts) + +### `workflow/start` — emit + +A workflow run started — the script's meta block validated, the body about to execute. Paired with Events['workflow/end']. + +```ts cordis-catalog +'workflow/start'(info: WorkflowRunInfo): void +``` + +Source: [`packages/workflow/workflow/src/index.ts:60`](../../packages/workflow/workflow/src/index.ts) + ## Inherited events (cordis core + loader/hmr/timer) The framework events every plugin also sees, beyond the harness vocabulary above. This is pinned vendor source ([vendoring policy](../../vendor/README.md)); it is summarized here so the page is a complete picture of the event bus, without elevating framework internals to the harness tier's prominence. diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 951e182000..c1f67c0725 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -227,6 +227,22 @@ async fetch(request: WebFetchRequest, exec?: WebExecContext): Promise + cancel(reason?: string): void + dispose(): Promise +} +``` + +## Failure discipline: `WorkflowError.fatal` + +Hook misuse inside a script — bad arguments, unknown/deferred `agent()` options, a schema outside the [structured-output subset](../../packages/core/tools/README.md), a tripped cap, a seam start failure, cancellation — throws a `WorkflowError` with `fatal: true`. The `parallel()`/`pipeline()` combinators RE-THROW fatal errors instead of mapping the item to `null`: a typo'd option must kill the script loudly, never dissolve into something that reads as an ordinary child failure. The per-item `null` is reserved for child-run failures (a non-`completed` stop reason) and ordinary in-stage script errors. + +## Events + +The `workflow/*` events (`workflow/start`, `workflow/phase`, `workflow/log`, `workflow/agent-start`, `workflow/agent-end`, `workflow/end` — see the [events catalog](../cordis-catalog/events.md)) are **observe-only** emits carrying DATA SNAPSHOTS: every payload starts with `WorkflowRunInfo` (id + meta), never the live `WorkflowRun`, so a subscriber cannot gain `cancel`/`dispose`, and `workflow/end` deliberately omits the result value (a listener observing outcomes must not receive a mutable alias of the caller's result). Every emit is per-listener contained — a throwing subscriber is logged, never propagated, and cannot starve the listeners registered after it — mirroring `subagent/start`/`subagent/end`. diff --git a/docs/module-graph.md b/docs/module-graph.md index e8f1edfaa5..cdb51ef1cc 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -48,6 +48,9 @@ graph TD tools --> agent tools --> llm tools --> system-prompt + workflow --> agent + workflow --> brand + workflow --> llm acp --> agent acp --> llm acp --> session @@ -83,6 +86,10 @@ graph TD tool-web --> system-prompt tool-web --> tools tool-web --> web + tool-workflow --> agent + tool-workflow --> llm + tool-workflow --> tools + tool-workflow --> workflow agent-core --> agent agent-core --> agent-loop agent-core --> invariants @@ -112,6 +119,12 @@ graph TD tool-subagent --> llm tool-subagent --> subagent tool-subagent --> tools + workflow-vm --> agent + workflow-vm --> brand + workflow-vm --> llm + workflow-vm --> subagent + workflow-vm --> tools + workflow-vm --> workflow acp-agent --> acp acp-agent --> agent-core acp-agent --> app-boot @@ -159,6 +172,7 @@ graph TD | `session-persistence-jsonl` | `session`, `session-persistence` | | `session-persistence-sqlite` | `session`, `session-persistence` | | `tools` | `agent`, `llm`, `system-prompt` | +| `workflow` | `agent`, `brand`, `llm` | | `acp` | `agent`, `llm`, `session`, `session-persistence`, `tools` | | `agent-loop` | `agent`, `llm`, `session`, `session-persistence`, `system-prompt`, `tools` | | `hooks-codex` | `agent`, `hook-protocol`, `llm`, `session`, `tools` | @@ -167,12 +181,14 @@ graph TD | `tool-fs` | `fs`, `llm`, `session`, `system-prompt`, `tools` | | `tool-todo` | `agent`, `session`, `tools` | | `tool-web` | `llm`, `system-prompt`, `tools`, `web` | +| `tool-workflow` | `agent`, `llm`, `tools`, `workflow` | | `agent-core` | `agent`, `agent-loop`, `invariants`, `llm`, `session`, `system-prompt`, `tool-bash`, `tools` | | `hooks-claude` | `agent`, `hook-protocol`, `llm`, `session`, `subagent`, `tools` | | `subagent-acp` | `agent`, `llm`, `subagent` | | `subagent-inprocess` | `agent`, `llm`, `session`, `subagent`, `tools` | | `subagent-mock` | `agent`, `llm`, `subagent` | | `tool-subagent` | `agent`, `llm`, `subagent`, `tools` | +| `workflow-vm` | `agent`, `brand`, `llm`, `subagent`, `tools`, `workflow` | | `acp-agent` | `acp`, `agent-core`, `app-boot`, `session-persistence-jsonl` | | `stdio-agent` | `agent`, `agent-core`, `app-boot`, `llm`, `session`, `session-persistence-jsonl` | | `subagent-fork` | `agent`, `session`, `subagent`, `subagent-inprocess` | diff --git a/docs/rfc/README.md b/docs/rfc/README.md index 54fdd5de70..12dd2715bd 100644 --- a/docs/rfc/README.md +++ b/docs/rfc/README.md @@ -95,6 +95,7 @@ Do NOT write one for a mechanical or local choice (a variable name, a one-file r | [dsh-hook-protocol — the shared Claude Code / Codex hook wire-protocol core](implemented/feature/2026-06-30-hook-protocol-lib.md) | 2026-06-30 | | [Interception seams — the typed-Decision surface a hook programs against](implemented/feature/2026-06-30-interception-seams.md) | 2026-06-30 | | [Subagent lifecycle enrichment — lastAssistantMessage (observe-only)](implemented/feature/2026-06-30-subagent-observe-enrich.md) | 2026-06-30 | +| [Dynamic workflows — a script-driven multi-agent orchestration seam](implemented/feature/2026-07-05-dynamic-workflows.md) | 2026-07-05 | ### Simplification diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md new file mode 100644 index 0000000000..372fce8f9a --- /dev/null +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -0,0 +1,58 @@ +# RFC: Dynamic workflows — a script-driven multi-agent orchestration seam + +- **Status**: implemented +- **Class**: feature +- **First proposed**: 2026-07-05 + +## Problem + +The harness can delegate ONE task to ONE child (`dsh-tool-subagent`), but work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — forces the model to orchestrate turn by turn: every intermediate result lands in the parent context, the plan lives nowhere durable, and coordination costs a model round-trip per step. Claude Code ships this capability as [dynamic workflows](https://code.claude.com/docs/en/workflows): the model writes a JavaScript orchestration script, a runtime executes it, and the script — not the conversation — holds the loop, the branching, and the intermediate results. + +## Proposal + +A workflow capability family at `packages/workflow/` in the bash seam shape (interface / implementation / consumer), plus the structured-output foundation it needs on the subagent seam. + +### The script contract (Claude Code-compatible) + +A script is `export const meta = {...}` (a PURE object literal: `name`, `description`, optional `whenToUse`/`phases`) followed by a plain-JS body with top-level `await`, ending in `return `. The body sees exactly: `agent(prompt, {label, phase, schema, model})`, `parallel(thunks)`, `pipeline(items, ...stages)` (NO cross-stage barrier; `(prev, item, index)` callbacks), `phase(title)`, `log(message)`, and `args`. CC semantics are preserved where they matter to script authors: a failed child resolves `null` (scripts `.filter(Boolean)`); an ordinary stage throw nulls the ITEM and skips its remaining stages; `Date.now()`/`Math.random()`/argless `new Date()` throw (kept banned so future resume support cannot break script compatibility). + +One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferred options (`effort`/`isolation`/`agentType`), malformed arguments, schemas outside the supported subset, tripped caps, seam start failures — throws a `WorkflowError` with `fatal: true`, and the combinators RE-THROW fatal errors instead of nulling the item. Without this, a typo'd option dissolves into a `null` indistinguishable from a child failure — the accepted-then-ignored failure mode this repo bans. One addition: the tool's `args` parameter is a JSON OBJECT (a bare list is wrapped as a field) so the wire schema stays honest. + +### The seam (dsh-workflow) + +`ctx.workflows` is an abstract `WorkflowService` in the bash shape — one engine per context, no named-provider registry (engines are deployment swaps, not co-residents). `start(request)` throws synchronously for a script that cannot begin; a returned `WorkflowRun`'s `result` NEVER rejects (failures resolve as `stopReason: 'error' | 'cancelled'`). The `workflow/*` events are observe-only emits carrying DATA SNAPSHOTS (id + meta; `workflow/end` omits the result value), per-listener contained, mirroring `subagent/start`/`subagent/end` — control stays with the run's holder. Vocabulary details: [core-data-structures/workflow.md](../../../core-data-structures/workflow.md). + +### The engine (dsh-workflow-vm): in-process node:vm + +**Why node:vm and not isolated-vm/worker threads**: isolated-vm is in maintenance mode, needs `--no-node-snapshot` on EVERY consumer process (including the published bins) on Node ≥ 20, and falls back to node-gyp source builds; a worker-thread engine turns every hook into RPC and complicates the per-file coverage gate. Scripts are model-written — the same trust level as the model's existing bash access — so genuine sandboxing is not the current requirement. The interface/implementation split exists precisely so a hardened engine can swap in later. Accepted, documented limitations: vm is not a security boundary, and the vm timeout covers only the initial synchronous slice — a pathological synchronous spin after the first await cannot be killed in-process; `dispose()` cancels, waits a bounded grace, then abandons. + +**Meta extraction**: a string/comment-aware brace scanner (template interpolation rejected) finds the literal; it is evaluated ALONE in an empty, timed vm context; the result must materialize to plain JSON data and pass shape validation (unknown fields rejected loud); the statement is blanked line-preservingly so stacks keep script line numbers. + +**Realm boundary**: values entering the host (meta, hook options, schemas, the return value) go through `materializeFromRealm` — a descriptor walk that NEVER invokes accessors (the repo's `isJsonValue` is prototype-strict and getter-invoking, so it cannot run first; it would reject every cross-realm object and let realm code run outside the timed window) and rejects loud everything JSON cannot carry, copying via `Object.defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Values entering the realm (`args`, `agent()` results) are rebuilt INSIDE the realm via the context's own `JSON.parse`, so the script never holds a live host-prototype object. Realm functions (stages, thunks) are called, never materialized. + +**Containment**: every hook-returned promise carries a no-op rejection consumer, so a script that drops a promise cannot surface an unhandled rejection when cancellation rejects it — `dsh-app-boot` exits the process on unhandled rejections. Caps (`maxConcurrentAgents` auto = `min(16, cores - 2)`, `maxTotalAgents` 1000, `maxItemsPerCall` 4096) and timeouts are validated Config, not literals. + +### The consumer (dsh-tool-workflow) + +A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, await, `try/finally` dispose, abort-bridge `exec.signal`, non-`completed` → `isError`. Render intent: a `generic` card titled by a textual `meta.name` sniff (presentation is a pure function of args). The tool description IS the model-facing authoring spec. Examples load it with guidance to use workflows only on explicit user request — the harness has no ultracode-style effort gate. + +### The foundation: structured output on the subagent seam + +`agent({schema})` needs `SubagentStartRequest.outputSchema` to actually work; it was vocabulary without an implementation (`outputSchema: false` everywhere). Implemented in `dsh-subagent-inprocess` for both in-process backends: a globally registered `structured_output` capture tool whose per-child schema is enforced by a `prepend: true` `agent/request` listener doing FINAL-REQUEST enforcement (post-processing `await next()` — cooperative mutation would not survive a downstream listener returning a replacement request), an `agent/turn-continuation` veto after capture (no wasted extra model step), validation-retry in-turn via `ToolArgsError`, and a clean-finish nudge loop (`structuredNudgeRetries`). Lifetime is refcounted by backends (plugin lifetime) AND live runs (start → settle). The seam's `outputSchema` type became the raw JSON-Schema SUBSET (`StructuredOutputSchema` in dsh-tools: single-string `type`, `properties`/`required`/`additionalProperties`, `items`, scalar `enum`/`const`; anything unenforced is rejected loud) — the schema travels verbatim to the model as the forced tool's parameters, so the wire format, not the author DSL, is the right vocabulary. + +## What was rejected + +- **Background execution as the default** (CC's shape): deferred; foreground-synchronous matches `dsh-tool-subagent`'s cut, and background semantics should be designed ONCE across bash/subagent/workflow rather than per-tool. +- **Workflow-layer JSON parsing for `agent({schema})`**: duplicating a seam concern at one consumer while the seam's capability flag stayed dishonestly `false`. +- **Meta as tool parameters instead of `export const meta`**: zero parsing, but scripts stop being self-contained artifacts and CC-authored scripts stop being drop-in. +- **`SchemaSpec` as the outputSchema type**: the author-facing DSL cannot express what arrives as data and cannot be validated against without conversion loss. + +## Deferred (documented non-goals of this cut) + +- **Background collection** (start tool → run id → completion notice → collect), designed alongside bash/subagent background unification. +- **Journaling + resume** (`resumeFromRunId`, cached agent() prefixes) — the determinism bans already keep scripts resume-compatible. +- **Saved/bundled workflows** (a `.deepseek/workflows/` registry, slash-command surface) and **script persistence to a run directory** (the tool-call event already records the script durably). +- **Nested `workflow()`**, **token `budget`**, and the `effort`/`isolation`/`agentType` agent options (each rejects loud with a message naming it deferred). +- **Engine hardening**: a worker-thread or isolated-vm engine behind the same seam (kills synchronous spins; adds memory limits). +- **ACP progress UI** over the `workflow/*` events (a `/workflows`-style view); the events exist for it. +- **ACP-backend structured output** and **`toolFilter`** (both still capability-gated `false`). diff --git a/docs/tool-catalog/tools.md b/docs/tool-catalog/tools.md index b1218c3871..9a2d3603f3 100644 --- a/docs/tool-catalog/tools.md +++ b/docs/tool-catalog/tools.md @@ -260,6 +260,45 @@ Record and update a structured task list for the current work. Send the ENTIRE l Source: [`packages/todo/tool-todo/src/index.ts`](../../packages/todo/tool-todo/src/index.ts) +## `@deepseek-ai/dsh-tool-workflow` + +### `workflow` + +Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. + +The script MUST begin with `export const meta = {...}` — a PURE object literal (no variables, calls, or template interpolation) with required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The body after it is plain JavaScript (NOT TypeScript) running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result. + +Script-body hooks: +- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. +- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. +- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. +- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. + +Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. + +Constraints: concurrency and total-agent caps apply; `Date.now()`, `Math.random()`, and argless `new Date()` throw (pass timestamps via `args`); no filesystem, network, timers, or Node.js APIs — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. + +```json +{ + "type": "object", + "properties": { + "script": { + "type": "string", + "description": "The complete workflow script: `export const meta = {...}` followed by the plain-JS body (top-level await allowed; end with `return `)." + }, + "args": { + "type": "object", + "description": "Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})." + } + }, + "required": [ + "script" + ] +} +``` + +Source: [`packages/workflow/tool-workflow/src/index.ts`](../../packages/workflow/tool-workflow/src/index.ts) + ## `@deepseek-ai/dsh-tool-web` ### `web_fetch` diff --git a/examples/acp-agent/cordis.yml b/examples/acp-agent/cordis.yml index 01849bb66e..665a6c2071 100644 --- a/examples/acp-agent/cordis.yml +++ b/examples/acp-agent/cordis.yml @@ -56,6 +56,12 @@ subagent_fork instead when the subtask needs THIS conversation's context: the child inherits the log so far. + Use the workflow tool ONLY when the user explicitly asks for a + workflow or for large multi-agent orchestration: you write a + JavaScript script (its description documents the exact format) that + fans work out across many subagents with phases and structured + results. For one or two delegations, prefer plain subagent calls. + For multi-step work, use the todo_write tool to track a task list: send the WHOLE list each call (it replaces the previous one), keep at most one task in_progress (exactly one while work remains), and mark a @@ -93,6 +99,18 @@ provider: fork toolName: subagent_fork + +# Dynamic workflows: the node:vm engine (ctx.workflows) over the spawn subagent +# backend above, plus the model-facing `workflow` tool. The model writes a +# JavaScript orchestration script (meta + body); the engine runs it in-process +# and fans agent() calls out as spawn children. +- id: workflow-vm + name: '@deepseek-ai/dsh-workflow-vm' + config: + provider: spawn + +- id: tool-workflow + name: '@deepseek-ai/dsh-tool-workflow' # The model-facing todo_write tool: whole-list task tracking written to the # session log (todo/write), surfaced to the ACP client as a `plan` update. - id: tool-todo diff --git a/examples/acp-agent/tests/acp.snapshot.ts b/examples/acp-agent/tests/acp.snapshot.ts index 65d2dee9da..5eab642fe4 100644 --- a/examples/acp-agent/tests/acp.snapshot.ts +++ b/examples/acp-agent/tests/acp.snapshot.ts @@ -78,6 +78,10 @@ const SCENARIOS: Scenario[] = [ { name: 'subagent-multi', hasModelTurn: true, recorded: true, childSessions: 2 }, { name: 'subagent-fork', hasModelTurn: true, recorded: true, childSessions: 1 }, { name: 'subagent-mixed', hasModelTurn: true, recorded: true, childSessions: 2 }, + // The workflow tool: the model writes a one-child orchestration script; the + // child runs as a spawn subagent inside the vm engine (its session is the + // child fixture), and the tool result carries the script's return value. + { name: 'workflow-run', hasModelTurn: true, recorded: true, childSessions: 1 }, // Hook matrix — one scenario per hook point × its headline Decision outcome, // across BOTH bridges (Claude `hooks.json`, Codex `codex-hooks.json`, seeded in // workspace/). The block scenarios need no model call: a UserPromptSubmit hook diff --git a/examples/acp-agent/tests/snapshots/workflow-run/input.json b/examples/acp-agent/tests/snapshots/workflow-run/input.json new file mode 100644 index 0000000000..2c402dc49e --- /dev/null +++ b/examples/acp-agent/tests/snapshots/workflow-run/input.json @@ -0,0 +1,7 @@ +{ + "steps": [ + { "op": "initialize" }, + { "op": "newSession" }, + { "op": "prompt", "text": "Use the workflow tool exactly once, with args omitted and this EXACT script (copy it verbatim):\nexport const meta = { name: 'snapshot-flow', description: 'one child for the snapshot' }\nphase('Run')\nconst reply = await agent('Reply with exactly the word WF_CHILD_OK and nothing else.')\nreturn { reply }\nAfter the workflow returns, reply with the single word WORKFLOW_DONE and stop. Do not use any other tool." } + ] +} diff --git a/examples/acp-agent/tests/snapshots/workflow-run/session.1.jsonl b/examples/acp-agent/tests/snapshots/workflow-run/session.1.jsonl new file mode 100644 index 0000000000..de6616fe9b --- /dev/null +++ b/examples/acp-agent/tests/snapshots/workflow-run/session.1.jsonl @@ -0,0 +1,37 @@ +{"type":"session","version":0,"id":"d6d69d2a-3933-445f-a84d-d8c1b941f5ce","createdAt":1783227490354,"cwd":"/tmp/acp-snap-cwd-I14oAK","parentSession":"fe74cfdb-40b4-45bd-b6fe-efd2b244c415"} +{"type":"turn/start","seq":0,"time":1783227490354,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":1,"time":1783227490354,"data":{"content":[{"type":"text","text":"Reply with exactly the word WF_CHILD_OK and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":2,"time":1783227490355,"data":{"turn":1,"step":1}} 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else."},{"type":"text","text":"WF_CHILD_OK"}],"usage":{"inputTokens":2707,"outputTokens":25,"cacheReadTokens":0,"reasoningTokens":20}},"sourceEventSeqs":[3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32],"surfaceOp":"append"} +{"type":"step/end","seq":34,"time":1783227491367,"data":{"turn":1,"step":1}} +{"type":"turn/end","seq":35,"time":1783227491367,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/workflow-run/session.jsonl b/examples/acp-agent/tests/snapshots/workflow-run/session.jsonl new file mode 100644 index 0000000000..9509032af2 --- /dev/null +++ b/examples/acp-agent/tests/snapshots/workflow-run/session.jsonl @@ -0,0 +1,152 @@ +{"type":"session","version":0,"id":"fe74cfdb-40b4-45bd-b6fe-efd2b244c415","createdAt":1783227488560,"cwd":"/tmp/acp-snap-cwd-I14oAK"} +{"type":"turn/start","seq":0,"time":1783227488563,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} 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+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" then"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"WORK"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"FL"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"OW"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"_D"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONE"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\""}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" after"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" it"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" returns"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_OvqFfefZ8c0hnuo9Eq9f8866","title":"workflow: snapshot-flow","kind":"other","status":"in_progress","rawInput":"export const meta = { name: 'snapshot-flow', description: 'one child for the snapshot' }\nphase('Run')\nconst reply = await agent('Reply with exactly the word WF_CHILD_OK and nothing else.')\nreturn { reply }"}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_OvqFfefZ8c0hnuo9Eq9f8866","status":"completed","content":[{"type":"content","content":{"type":"text","text":"workflow \"snapshot-flow\" completed (1 agent).\nReturn value:\n{\n \"reply\": \"WF_CHILD_OK\"\n}"}}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" workflow"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" returned"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" successfully"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"WF"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"_CH"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ILD"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"_OK"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\"."}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" Now"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" I"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" need"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" single"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" word"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"WORK"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"FL"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"OW"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"_D"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONE"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\""}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" stop"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"WORK"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"FL"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"OW"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"_D"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"ONE"}}}} +{"jsonrpc":"2.0","id":3,"result":{"stopReason":"end_turn"}} diff --git a/examples/coding-agent/cordis.yml b/examples/coding-agent/cordis.yml index 0c95299fca..f6f56cb57d 100644 --- a/examples/coding-agent/cordis.yml +++ b/examples/coding-agent/cordis.yml @@ -46,7 +46,7 @@ # under ./.sessions); unset starts a fresh session each run. resumeSessionId: !!js process.env.RESUME_SESSION_ID persistenceRoot: './.sessions' - welcome: 'agent REPL ready. Give it a coding task (its tools are read, write, edit, bash, subagent, and todo_write).' + welcome: 'agent REPL ready. Give it a coding task (its tools are read, write, edit, bash, subagent, workflow, and todo_write).' systemPrompt: | You are coding-agent, a CLI coding assistant. @@ -64,6 +64,12 @@ subagent_fork instead when the subtask needs THIS conversation's context: the child inherits the log so far. + Use the workflow tool ONLY when the user explicitly asks for a + workflow or for large multi-agent orchestration: you write a + JavaScript script (its description documents the exact format) that + fans work out across many subagents with phases and structured + results. For one or two delegations, prefer plain subagent calls. + Check the [exit code: N] marker on every command; investigate failures before moving on. Verify your work by running the code or tests. Keep answers brief and factual. @@ -120,6 +126,18 @@ provider: fork toolName: subagent_fork + +# Dynamic workflows: the node:vm engine (ctx.workflows) over the spawn subagent +# backend above, plus the model-facing `workflow` tool. The model writes a +# JavaScript orchestration script (meta + body); the engine runs it in-process +# and fans agent() calls out as spawn children. +- id: workflow-vm + name: '@deepseek-ai/dsh-workflow-vm' + config: + provider: spawn + +- id: tool-workflow + name: '@deepseek-ai/dsh-tool-workflow' # The model-facing todo_write tool: whole-list task tracking written to the # session log (todo/write), rendered as a stdio checklist / ACP plan. - id: tool-todo diff --git a/knip.json b/knip.json index 5e61645458..39fb4c414f 100644 --- a/knip.json +++ b/knip.json @@ -1,7 +1,11 @@ { "$schema": "https://unpkg.com/knip@5/schema.json", - "exclude": ["duplicates"], - "ignoreWorkspaces": ["vendor/*"], + "exclude": [ + "duplicates" + ], + "ignoreWorkspaces": [ + "vendor/*" + ], "workspaces": { ".": { "entry": [ @@ -11,55 +15,138 @@ "examples/acp-agent/tests/**/*.e2e.ts", "examples/acp-agent/tests/**/*.snapshot.ts" ], - "project": ["scripts/**/*.ts", "examples/**/*.ts"] + "project": [ + "scripts/**/*.ts", + "examples/**/*.ts" + ] }, "packages/*/*": { - "entry": ["tests/**/*.spec.ts"], - "project": ["src/**/*.ts", "tests/**/*.ts"] + "entry": [ + "tests/**/*.spec.ts" + ], + "project": [ + "src/**/*.ts", + "tests/**/*.ts" + ] }, "packages/util/brand": { - "project": ["src/**/*.ts"], - "ignoreDependencies": ["cordis"] + "project": [ + "src/**/*.ts" + ], + "ignoreDependencies": [ + "cordis" + ] }, "packages/llm/llm-deepseek": { - "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], - "project": ["src/**/*.ts", "tests/**/*.ts"] + "entry": [ + "tests/**/*.spec.ts", + "tests/**/*.e2e.ts" + ], + "project": [ + "src/**/*.ts", + "tests/**/*.ts" + ] }, "packages/llm/llm-pi-ai": { - "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], - "project": ["src/**/*.ts", "tests/**/*.ts"] + "entry": [ + "tests/**/*.spec.ts", + "tests/**/*.e2e.ts" + ], + "project": [ + "src/**/*.ts", + "tests/**/*.ts" + ] }, "packages/web/web-search-exa": { - "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], - "project": ["src/**/*.ts", "tests/**/*.ts"] + "entry": [ + "tests/**/*.spec.ts", + "tests/**/*.e2e.ts" + ], + "project": [ + "src/**/*.ts", + "tests/**/*.ts" + ] }, "packages/web/web-search-perplexity": { - "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], - "project": ["src/**/*.ts", "tests/**/*.ts"] + "entry": [ + "tests/**/*.spec.ts", + "tests/**/*.e2e.ts" + ], + "project": [ + "src/**/*.ts", + "tests/**/*.ts" + ] }, "packages/web/web-search-deepseek": { - "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], - "project": ["src/**/*.ts", "tests/**/*.ts"] + "entry": [ + "tests/**/*.spec.ts", + "tests/**/*.e2e.ts" + ], + "project": [ + "src/**/*.ts", + "tests/**/*.ts" + ] }, "packages/ui/acp-agent": { - "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], - "project": ["src/**/*.ts", "tests/**/*.ts"] + "entry": [ + "tests/**/*.spec.ts", + "tests/**/*.e2e.ts" + ], + "project": [ + "src/**/*.ts", + "tests/**/*.ts" + ] }, "packages/ui/stdio-agent": { - "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], - "project": ["src/**/*.ts", "tests/**/*.ts"] + "entry": [ + "tests/**/*.spec.ts", + "tests/**/*.e2e.ts" + ], + "project": [ + "src/**/*.ts", + "tests/**/*.ts" + ] }, "packages/subagent/subagent-spawn": { - "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], - "project": ["src/**/*.ts", "tests/**/*.ts"] + "entry": [ + "tests/**/*.spec.ts", + "tests/**/*.e2e.ts" + ], + "project": [ + "src/**/*.ts", + "tests/**/*.ts" + ] }, "packages/subagent/subagent-acp": { - "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts", "tests/mock-acp-server.ts"], - "project": ["src/**/*.ts", "tests/**/*.ts"] + "entry": [ + "tests/**/*.spec.ts", + "tests/**/*.e2e.ts", + "tests/mock-acp-server.ts" + ], + "project": [ + "src/**/*.ts", + "tests/**/*.ts" + ] }, "packages/fs/tool-fs": { - "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], - "project": ["src/**/*.ts", "tests/**/*.ts"] + "entry": [ + "tests/**/*.spec.ts", + "tests/**/*.e2e.ts" + ], + "project": [ + "src/**/*.ts", + "tests/**/*.ts" + ] + }, + "packages/workflow/workflow-vm": { + "entry": [ + "tests/**/*.spec.ts", + "tests/**/*.e2e.ts" + ], + "project": [ + "src/**/*.ts", + "tests/**/*.ts" + ] } } } diff --git a/packages/README.md b/packages/README.md index f07e0d5a36..3c38eda671 100644 --- a/packages/README.md +++ b/packages/README.md @@ -14,6 +14,7 @@ Packages are grouped by modular role at `packages///`. The group dir | [`fs/`](fs/README.md) | Filesystem capability family: the abstract seam, a local impl, and the model-facing file tools | Product — stable surface | | [`compact/`](compact/README.md) | Compaction capability family: the abstract seam + a basic backend (tool deferred) | Product — stable surface | | [`subagent/`](subagent/README.md) | Subagent capability family: the provider-registry seam and the model-facing delegation tool | Product — stable surface | +| [`workflow/`](workflow/README.md) | Workflow capability family: the script-engine seam, the node:vm engine, and the model-facing `workflow` tool | Product — stable surface | | [`web/`](web/README.md) | Web capability family: the abstract seam, search/fetch provider impls, and the model-facing web tools | Product — stable surface | | [`todo/`](todo/README.md) | Todo/planning family: the model-facing `todo_write` tool (whole-list task tracking on the session log) | Product — stable surface | | [`hooks/`](hooks/README.md) | Hook bridges + the shared Claude Code / Codex wire-protocol library | Product — stable surface | diff --git a/packages/core/tools/tests/gen-tool-catalog.spec.ts b/packages/core/tools/tests/gen-tool-catalog.spec.ts index 05236dd322..874f697797 100644 --- a/packages/core/tools/tests/gen-tool-catalog.spec.ts +++ b/packages/core/tools/tests/gen-tool-catalog.spec.ts @@ -35,7 +35,7 @@ describe('gen-tool-catalog collectToolCatalog', () => { it('boots every shipped tool package and harvests its model-facing schemas', async () => { const catalog = await collectToolCatalog() const names = catalog.flatMap(entry => entry.schemas.map(s => s.name)).sort() - expect(names).toEqual(['bash', 'bash_kill', 'bash_output', 'edit', 'read', 'subagent', 'todo_write', 'web_fetch', 'web_search', 'write']) + expect(names).toEqual(['bash', 'bash_kill', 'bash_output', 'edit', 'read', 'subagent', 'todo_write', 'web_fetch', 'web_search', 'workflow', 'write']) // Every tool carries a JSON-Schema `parameters` object (what the model sees). for (const entry of catalog) { for (const schema of entry.schemas) { diff --git a/packages/subagent/subagent-inprocess/package.json b/packages/subagent/subagent-inprocess/package.json index 41c46e00d3..9a53dd61f4 100644 --- a/packages/subagent/subagent-inprocess/package.json +++ b/packages/subagent/subagent-inprocess/package.json @@ -36,6 +36,8 @@ "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", "@deepseek-ai/dsh-subagent": "workspace:^", + "@deepseek-ai/dsh-subagent-fork": "workspace:^", + "@deepseek-ai/dsh-subagent-spawn": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", "cordis": "^4.0.0-rc.6" diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index 643000de2c..0a92c15fa8 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -10,8 +10,8 @@ import * as Invariants from '@deepseek-ai/dsh-invariants' import SubagentService, { type SubagentStartRequest } from '@deepseek-ai/dsh-subagent' import type { StructuredOutputSchema } from '@deepseek-ai/dsh-tools' import { MockAdapter, textResponse, toolCallResponse } from '../../../core/agent-loop/tests/mock-adapter.ts' -import * as spawn from '../../subagent-spawn/src/index.ts' -import * as fork from '../../subagent-fork/src/index.ts' +import * as spawn from '@deepseek-ai/dsh-subagent-spawn' +import * as fork from '@deepseek-ai/dsh-subagent-fork' import { acquireStructuredRuntime, STRUCTURED_OUTPUT_INSTRUCTION, diff --git a/packages/workflow/README.md b/packages/workflow/README.md new file mode 100644 index 0000000000..f28a325ea8 --- /dev/null +++ b/packages/workflow/README.md @@ -0,0 +1,13 @@ +# workflow/ — dynamic-workflow capability family + +The workflow seam: a model-written JavaScript orchestration script that fans out subagents at scale (phases, structured per-agent results, concurrency caps), modeled on Claude Code's dynamic workflows. A capability seam (see [capability seams](../../docs/rfc/implemented/architecture/2026-06-13-capability-seams.md)) in the bash shape: ONE engine implementation per context registers as `ctx.workflows`; the model-facing tool consumes it. + +| Package | Role | ctx key | +|---|---|---| +| `workflow/` | Abstract workflow seam: service base class + run vocabulary + `workflow/*` events | `ctx.workflows` | +| `workflow-vm/` | In-process `node:vm` engine: parses the script, injects the hooks, drives `ctx.subagents` | (provides `ctx.workflows`) | +| `tool-workflow/` | Model-facing `workflow` tool over `ctx.workflows` | (registers on `ctx.tools`) | + +The interface lives at `workflow/workflow/`. The engine's `agent()` hook rides the [subagent seam](../subagent/README.md) (any registered provider; the shipped examples use `spawn`), and `agent({ schema })` rides the structured-output support the in-process backends implement. The seam split exists for engine hardening: `node:vm` is in-process and cannot kill a pathological synchronous spin — a worker-thread or isolated-vm engine swaps in behind the same interface if that ever matters. + +The proposal, decisions, and deferred work: [docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md](../../docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md). diff --git a/packages/workflow/tool-workflow/README.md b/packages/workflow/tool-workflow/README.md new file mode 100644 index 0000000000..4cd86fb43b --- /dev/null +++ b/packages/workflow/tool-workflow/README.md @@ -0,0 +1,22 @@ +# @deepseek-ai/dsh-tool-workflow + +The model-facing **`workflow` tool**: run a JavaScript orchestration script that fans out subagents, and return the script's final value. Pure schema + lifecycle shaping over [`ctx.workflows`](../workflow/README.md) — script parsing, execution, caps, and cancellation live behind the seam, so a hardened engine swaps in without touching what the model sees. + +## What the model sees + +Two parameters: `script` (required — the full `export const meta = {...}` + body text; the tool DESCRIPTION carries the complete authoring contract: hooks, semantics, determinism bans, the supported schema subset) and `args` (optional JSON object exposed to the script as the `args` global; a bare list is wrapped as a field, a deliberate deviation from Claude Code's any-JSON `args` so the wire schema stays honest). + +## Lifecycle + +Collection is SYNCHRONOUS this cut (like [`dsh-tool-subagent`](../../subagent/tool-subagent/README.md)): `execute` starts a run and awaits `run.result` inside a `try/finally` that always disposes the run, so the script and its children reach quiescence on every path. `exec.signal` is bridged to `run.cancel()` (including the already-aborted-before-start case). A non-`completed` stop reason maps to an `isError` result reporting the reason — never partial output as success; a parse/meta failure thrown synchronously by `start()` becomes an `isError` the model can correct from. The completed result renders the meta name, the agent count, and the return value as JSON, truncated at `maxResultChars` with an explicit notice. + +## Render intent + +Decided up front (per the [render-intent RFC](../../../docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md)): a `generic` card titled `workflow: `, the name sniffed TEXTUALLY from `args.script` (presentation must be a pure function of args, so it cannot ask the engine to parse); the script text rides as `rawInput`. The result keeps the generic card. + +## Config + +| Key | Default | Meaning | +|---|---|---| +| `toolName` | `workflow` | The model-facing tool name to register. | +| `maxResultChars` | `50000` | Rendered-result ceiling; longer JSON is truncated with a notice. | diff --git a/packages/workflow/tool-workflow/package.json b/packages/workflow/tool-workflow/package.json new file mode 100644 index 0000000000..9c3f819cb5 --- /dev/null +++ b/packages/workflow/tool-workflow/package.json @@ -0,0 +1,43 @@ +{ + "name": "@deepseek-ai/dsh-tool-workflow", + "description": "Model-facing workflow tool: run a JavaScript orchestration script over ctx.workflows", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-agent": "^0.0.1", + "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-tools": "^0.0.1", + "@deepseek-ai/dsh-workflow": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "schemastery": "^3.18.0" + }, + "devDependencies": { + "@deepseek-ai/dsh-agent": "workspace:^", + "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-session": "workspace:^", + "@deepseek-ai/dsh-system-prompt": "workspace:^", + "@deepseek-ai/dsh-tools": "workspace:^", + "@deepseek-ai/dsh-workflow": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/workflow/tool-workflow/src/index.ts b/packages/workflow/tool-workflow/src/index.ts new file mode 100644 index 0000000000..eeed5c9dbe --- /dev/null +++ b/packages/workflow/tool-workflow/src/index.ts @@ -0,0 +1,179 @@ +/** + * The model-facing `workflow` tool: run a JavaScript orchestration script that + * fans out subagents, and return the script's final value. Pure schema + + * lifecycle shaping — script parsing, execution, caps, and cancellation live + * behind `ctx.workflows` (`@deepseek-ai/dsh-workflow`), so a hardened engine + * swaps in without touching what the model sees. + * + * Collection is SYNCHRONOUS this cut (like `dsh-tool-subagent`): `execute` + * starts a run and awaits `run.result` inside a `try/finally` that always + * disposes the run, so the script and its children are torn down on every + * path. A non-`completed` stop reason maps to an `isError` tool result (by + * throwing) rather than returning partial output as success. Background + * collection is deferred to the cross-tool background redesign. + * + * Render intent (decided up front, per the render-intent RFC): a `generic` + * card whose title carries the script's `meta.name`, sniffed textually from + * the args — presentation must be a pure function of `args`, so it cannot ask + * the engine to parse. + * + * @module @deepseek-ai/dsh-tool-workflow + */ + +import type { Context } from 'cordis' +import z from 'schemastery' +import { defineTool } from '@deepseek-ai/dsh-tools' +import type { ToolCallView, ToolResultView } from '@deepseek-ai/dsh-tools' +import type { ContentBlock } from '@deepseek-ai/dsh-llm' +import type { WorkflowResult, WorkflowRun } from '@deepseek-ai/dsh-workflow' + +export const name = 'tool-workflow' +export const inject = ['tools', 'workflows'] + +/** Config: the model-facing tool name plus result rendering caps. */ +export interface Config { + /** The model-facing tool name to register (default `workflow`). */ + toolName?: string + /** Rendered-result ceiling, in characters: a longer JSON value is truncated with a notice (default 50000). */ + maxResultChars?: number +} + +export const Config: z = z.object({ + toolName: z.string().default('workflow'), + maxResultChars: z.natural().min(1).default(50_000), +}) + +/** + * The script-authoring contract, embedded in the tool description. This IS the + * model-facing spec: the meta block, the hooks and their exact semantics, the + * determinism bans, and the supported schema subset. + */ +const DESCRIPTION = `Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. + +The script MUST begin with \`export const meta = {...}\` — a PURE object literal (no variables, calls, or template interpolation) with required \`name\` (short kebab-case) and \`description\` strings, optional \`whenToUse\` string and \`phases\` array (\`{title, detail?, model?}\`). The body after it is plain JavaScript (NOT TypeScript) running with top-level await; end with \`return \` — the value must be JSON-serializable and is this tool's result. + +Script-body hooks: +- \`agent(prompt, opts?): Promise\` — run one subagent to completion. Without \`opts.schema\` it resolves to the child's final text; with \`opts.schema\` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves \`null\` when the child fails (filter with \`.filter(Boolean)\`). Other opts: \`label\` (display), \`phase\` (progress group), \`model\` (override). Anything else (\`effort\`/\`isolation\`/\`agentType\`) is rejected loudly. +- \`pipeline(items, ...stages): Promise\` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives \`(prev, item, index)\`. An ordinary stage throw drops that ITEM to \`null\` and skips its remaining stages. +- \`parallel(thunks): Promise\` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to \`null\`. +- \`phase(title)\` — start a progress phase; \`log(message)\` — narrate progress; \`args\` — the tool call's \`args\` input, verbatim. + +Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item \`null\`. + +Constraints: concurrency and total-agent caps apply; \`Date.now()\`, \`Math.random()\`, and argless \`new Date()\` throw (pass timestamps via \`args\`); no filesystem, network, timers, or Node.js APIs — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.` + +type WorkflowCallArgs = { script: string; args?: Record } + +/** Best-effort meta.name sniff for presentation (pure textual; no evaluation). */ +function sniffMetaName(script: string): string | undefined { + const match = /export\s+const\s+meta\s*=\s*\{[^{}]*?name\s*:\s*(['"`])([^'"`\n]{1,64})\1/.exec(script) + return match?.[2] +} + +/** The pending-state card: a generic card titled by the script's meta name. */ +function presentWorkflowCall(args: WorkflowCallArgs): ToolCallView { + const name = sniffMetaName(args.script) + return { + card: 'generic', + title: name !== undefined ? `workflow: ${name}` : 'workflow', + rawInput: args.script, + } +} + +/** The completed-state card: keep the pending title; render the result content as-is. */ +function presentWorkflowResult(args: WorkflowCallArgs, result: { content: ContentBlock[]; isError: boolean }): ToolResultView { + void args + void result + return { card: 'generic' } +} + +/** A non-`completed` stop reason means the script did not finish cleanly. */ +function stopReasonError(result: WorkflowResult): string | undefined { + switch (result.stopReason) { + case 'completed': + return undefined + case 'cancelled': + return `workflow run was cancelled${result.error !== undefined ? ` (${result.error})` : ''}` + case 'error': + return `workflow run failed: ${result.error ?? 'unknown error'}` + /* v8 ignore start -- defensive: WorkflowStopReason is a closed union, exhaustive by construction; a future variant fails here loudly */ + default: + return `workflow run ended abnormally (${String(result.stopReason satisfies never)})` + /* v8 ignore stop */ + } +} + +/** Render the run's outcome text: the meta name, agent count, and the JSON value (capped). */ +function renderResult(run: WorkflowRun, result: WorkflowResult, maxChars: number): string { + // The engine returns JSON data (null for a valueless script), so stringify never yields undefined. + const rendered = JSON.stringify(result.value, null, 2) + const clipped = rendered.length > maxChars + ? `${rendered.slice(0, maxChars)}\n… [truncated: ${rendered.length - maxChars} more characters]` + : rendered + return `workflow "${run.meta.name}" completed (${result.agentsStarted} agent${result.agentsStarted === 1 ? '' : 's'}).\nReturn value:\n${clipped}` +} + +export function apply(ctx: Context, config: Config): void { + const maxResultChars = config.maxResultChars ?? 50_000 + ctx.tools.register(defineTool({ + name: config.toolName ?? 'workflow', + description: DESCRIPTION, + parameters: { + script: { + type: 'string', + required: true, + description: 'The complete workflow script: `export const meta = {...}` followed by the plain-JS body (top-level await allowed; end with `return `).', + }, + args: { + type: 'object', + description: 'Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {"files": [...]}).', + }, + }, + async execute(args, exec): Promise { + const parent = exec.agent + if (!parent) { + // The loop sets `exec.agent` for every model-driven call; its absence + // means a non-agent caller invoked the tool directly, which has no + // parent to attribute the children to. Fail loud rather than guess. + throw new Error('workflow tool requires a calling agent (exec.agent was undefined)') + } + + // Parse failures (SCRIPT_PARSE/META_INVALID) throw synchronously here + // and become isError results via the registry — the model sees the + // violation list and can correct the script. + const run: WorkflowRun = ctx.workflows.start({ + script: args.script, + ...args.args !== undefined ? { args: args.args } : {}, + parent, + ...exec.signal ? { signal: exec.signal } : {}, + }) + + // Bridge the tool's abort signal to the run: if the parent step is + // aborted while the script is in flight, cancel the whole run. The + // engine also receives `signal` directly, but an explicit bridge keeps + // the tool's contract local (and covers an engine that ignores it). + const onAbort = (): void => { run.cancel('parent step aborted') } + exec.signal?.addEventListener('abort', onAbort, { once: true }) + // `addEventListener` does NOT fire for a signal already aborted before + // this line — cancel explicitly in that case. + if (exec.signal?.aborted) run.cancel('parent step aborted') + + try { + const result = await run.result + const error = stopReasonError(result) + if (error !== undefined) { + // Map a non-clean finish to an isError result (the registry turns a + // throw into an isError). Report the reason, not partial output. + throw new Error(error) + } + return [{ type: 'text', text: renderResult(run, result, maxResultChars) }] + } finally { + exec.signal?.removeEventListener('abort', onAbort) + // Always reach run quiescence — never leak a live script or children. + await run.dispose() + } + }, + presentCall: args => presentWorkflowCall(args), + presentResult: (args, result) => presentWorkflowResult(args, result), + })) +} diff --git a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts new file mode 100644 index 0000000000..012fae4961 --- /dev/null +++ b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts @@ -0,0 +1,224 @@ +import { describe, expect, it, vi } from 'vitest' +import { Context } from 'cordis' +import Loader from '@cordisjs/plugin-loader' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import type { ToolExecutionResult } from '@deepseek-ai/dsh-tools' +import { AgentId } from '@deepseek-ai/dsh-agent' +import type { Agent } from '@deepseek-ai/dsh-agent' +import { WorkflowRunId, WorkflowService } from '@deepseek-ai/dsh-workflow' +import type { WorkflowResult, WorkflowRun, WorkflowStartRequest } from '@deepseek-ai/dsh-workflow' +import { CallId } from '@deepseek-ai/dsh-llm' +import * as toolWorkflow from '../src/index.ts' + +/** A controllable engine standing in behind ctx.workflows (the tool's only seam). */ +class StubEngine extends WorkflowService { + requests: WorkflowStartRequest[] = [] + cancels: string[] = [] + disposed = 0 + settle!: (result: WorkflowResult) => void + startError: Error | undefined + + start(request: WorkflowStartRequest): WorkflowRun { + if (this.startError) throw this.startError + this.requests.push(request) + const result = new Promise((resolve) => { this.settle = resolve }) + request.signal?.addEventListener('abort', () => { + this.settle({ value: null, stopReason: 'cancelled', error: 'signal', agentsStarted: 0 }) + }, { once: true }) + return { + id: WorkflowRunId('run-1'), + meta: { name: 'stub-flow', description: 'd' }, + result, + cancel: (reason?: string) => { + this.cancels.push(reason ?? 'cancelled') + this.settle({ value: null, stopReason: 'cancelled', ...reason !== undefined ? { error: reason } : {}, agentsStarted: 0 }) + }, + dispose: () => { + this.disposed += 1 + return Promise.resolve() + }, + } + } +} + +async function setup(config?: { toolName?: string; maxResultChars?: number }) { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(StubEngine) + await ctx.plugin(toolWorkflow, config ?? {}) + const engine = ctx.workflows as StubEngine + const parent = { id: AgentId('caller'), options: {} } as unknown as Agent + return { ctx, engine, parent } +} + +const SCRIPT = "export const meta = { name: 'audit', description: 'd' }\nreturn 1" + +function execute(ctx: Context, args: unknown, extra?: { agent?: Agent; signal?: AbortSignal }): Promise { + return ctx.tools.execute({ + callId: CallId('call-1'), + name: 'workflow', + arguments: args, + ...extra?.agent ? { agent: extra.agent } : {}, + ...extra?.signal ? { signal: extra.signal } : {}, + }) +} + +describe('dsh-tool-workflow', () => { + it('starts a run with the script/args/parent/signal and renders the completed value', async () => { + const { ctx, engine, parent } = await setup() + const controller = new AbortController() + const pending = execute(ctx, { script: SCRIPT, args: { files: ['a.ts'] } }, { agent: parent, signal: controller.signal }) + await vi.waitFor(() => { expect(engine.requests.length).toBe(1) }) + expect(engine.requests[0]).toMatchObject({ script: SCRIPT, args: { files: ['a.ts'] }, parent }) + expect(engine.requests[0]!.signal).toBe(controller.signal) + engine.settle({ value: { findings: [1, 2] }, stopReason: 'completed', agentsStarted: 7 }) + const result = await pending + expect(result.isError).toBe(false) + const rendered = (result.content[0] as { text: string }).text + expect(rendered).toContain('workflow "stub-flow" completed (7 agents)') + expect(rendered).toContain('"findings"') + expect(engine.disposed).toBe(1) + }) + + it('maps a non-completed stop reason to an isError result (and still disposes)', async () => { + const { ctx, engine, parent } = await setup() + const pending = execute(ctx, { script: SCRIPT }, { agent: parent }) + await vi.waitFor(() => { expect(engine.requests.length).toBe(1) }) + engine.settle({ value: null, stopReason: 'error', error: 'script threw: boom', agentsStarted: 2 }) + const result = await pending + expect(result.isError).toBe(true) + expect((result.content[0] as { text: string }).text).toContain('workflow run failed: script threw: boom') + expect(engine.disposed).toBe(1) + }) + + it('reports a cancelled run distinctly (with and without a reason)', async () => { + const { ctx, engine, parent } = await setup() + const pending = execute(ctx, { script: SCRIPT }, { agent: parent }) + await vi.waitFor(() => { expect(engine.requests.length).toBe(1) }) + engine.settle({ value: null, stopReason: 'cancelled', error: 'user', agentsStarted: 0 }) + const result = await pending + expect(result.isError).toBe(true) + expect((result.content[0] as { text: string }).text).toContain('workflow run was cancelled (user)') + + const bare = execute(ctx, { script: SCRIPT }, { agent: parent }) + await vi.waitFor(() => { expect(engine.requests.length).toBe(2) }) + engine.settle({ value: null, stopReason: 'cancelled', agentsStarted: 0 }) + expect(((await bare).content[0] as { text: string }).text.trim().endsWith('cancelled')).toBe(true) + }) + + it('an error result without a message renders the unknown-error fallback', async () => { + const { ctx, engine, parent } = await setup() + const pending = execute(ctx, { script: SCRIPT }, { agent: parent }) + await vi.waitFor(() => { expect(engine.requests.length).toBe(1) }) + engine.settle({ value: null, stopReason: 'error', agentsStarted: 0 }) + expect(((await pending).content[0] as { text: string }).text).toContain('unknown error') + }) + + it('cancels the run when exec.signal aborts MID-FLIGHT (the abort bridge)', async () => { + const { ctx, engine, parent } = await setup() + const controller = new AbortController() + const pending = execute(ctx, { script: SCRIPT }, { agent: parent, signal: controller.signal }) + await vi.waitFor(() => { expect(engine.requests.length).toBe(1) }) + controller.abort() + const result = await pending + expect(result.isError).toBe(true) + expect(engine.cancels).toContain('parent step aborted') + expect(engine.disposed).toBe(1) + }) + + it('applies raw-config fallbacks when loaded without schemastery defaults (direct apply)', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(StubEngine) + // Direct apply with an empty RAW config: the `??` fallbacks resolve the + // tool name and render cap without schemastery having filled them. + toolWorkflow.apply(ctx, {}) + expect(ctx.tools.get('workflow')).toBeDefined() + }) + + it('a synchronous engine start throw (parse/meta failure) becomes an isError result', async () => { + const { ctx, engine, parent } = await setup() + engine.startError = new Error('script must begin with `export const meta = {...}`') + const result = await execute(ctx, { script: 'nope' }, { agent: parent }) + expect(result.isError).toBe(true) + expect((result.content[0] as { text: string }).text).toContain('must begin with') + }) + + it('requires a calling agent (fails loud without exec.agent)', async () => { + const { ctx, engine } = await setup() + const result = await execute(ctx, { script: SCRIPT }) + expect(result.isError).toBe(true) + expect((result.content[0] as { text: string }).text).toContain('requires a calling agent') + expect(engine.requests.length).toBe(0) + }) + + it('validates its own arguments via the schema DSL (missing script)', async () => { + const { ctx, parent } = await setup() + const result = await execute(ctx, {}, { agent: parent }) + expect(result.isError).toBe(true) + expect(result.error?.code).toBe('INVALID_ARGS') + }) + + it('cancels the run when exec.signal is ALREADY aborted at call time', async () => { + const { ctx, engine, parent } = await setup() + const controller = new AbortController() + controller.abort() + const result = await execute(ctx, { script: SCRIPT }, { agent: parent, signal: controller.signal }) + expect(result.isError).toBe(true) + expect(engine.cancels).toContain('parent step aborted') + expect(engine.disposed).toBe(1) + }) + + it('truncates an oversized rendered value with a notice (maxResultChars)', async () => { + const { ctx, engine, parent } = await setup({ maxResultChars: 40 }) + const pending = execute(ctx, { script: SCRIPT }, { agent: parent }) + await vi.waitFor(() => { expect(engine.requests.length).toBe(1) }) + engine.settle({ value: { blob: 'x'.repeat(500) }, stopReason: 'completed', agentsStarted: 1 }) + const rendered = ((await pending).content[0] as { text: string }).text + expect(rendered).toContain('[truncated:') + expect(rendered.length).toBeLessThan(400) + }) + + it('registers under a configured toolName and unregisters on fiber dispose (HMR safety)', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(StubEngine) + const fiber = await ctx.plugin(toolWorkflow, { toolName: 'orchestrate' }) + expect(ctx.tools.get('orchestrate')).toBeDefined() + expect(ctx.tools.get('workflow')).toBeUndefined() + await fiber.dispose() + expect(ctx.tools.get('orchestrate')).toBeUndefined() + }) + + it('presents a generic pending card titled by the sniffed meta name, with the script as rawInput', async () => { + const { ctx } = await setup() + const tool = ctx.tools.get('workflow')! + const view = tool.presentCall!({ script: SCRIPT }) + expect(view).toMatchObject({ card: 'generic', title: 'workflow: audit', rawInput: SCRIPT }) + const anonymous = tool.presentCall!({ script: 'export const meta = {}\nreturn 1' }) + expect(anonymous).toMatchObject({ card: 'generic', title: 'workflow' }) + }) + + it('presentResult keeps the generic card; presentation is pure and replay-safe on malformed args', async () => { + const { ctx } = await setup() + const tool = ctx.tools.get('workflow')! + expect(tool.presentResult!({ script: SCRIPT }, { content: [], isError: false })).toEqual({ card: 'generic' }) + // defineTool soft-validates presentation args: a malformed logged shape + // falls back to undefined instead of throwing mid-replay. + expect(tool.presentCall!({ not: 'the schema' })).toBeUndefined() + }) + + it('has the namespace-plugin export shape (no stray default)', () => { + expect('default' in toolWorkflow).toBe(false) + expect(toolWorkflow.name).toBe('tool-workflow') + expect(toolWorkflow.inject).toEqual(['tools', 'workflows']) + const loader = Object.create(Loader.prototype) as Loader + const unwrapped = loader.unwrapExports(toolWorkflow) as Record + expect(unwrapped).toBe(toolWorkflow) + expect(typeof unwrapped.apply).toBe('function') + }) +}) diff --git a/packages/workflow/tool-workflow/tsconfig.json b/packages/workflow/tool-workflow/tsconfig.json new file mode 100644 index 0000000000..25f4d989f2 --- /dev/null +++ b/packages/workflow/tool-workflow/tsconfig.json @@ -0,0 +1,33 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../../vendor/schemastery" + }, + { + "path": "../../core/agent" + }, + { + "path": "../../llm/llm" + }, + { + "path": "../../core/tools" + }, + { + "path": "../workflow" + } + ] +} diff --git a/packages/workflow/workflow-vm/README.md b/packages/workflow/workflow-vm/README.md new file mode 100644 index 0000000000..1cbc76c250 --- /dev/null +++ b/packages/workflow/workflow-vm/README.md @@ -0,0 +1,30 @@ +# @deepseek-ai/dsh-workflow-vm + +The first [`WorkflowService`](../workflow/README.md) implementation: an in-process **`node:vm` engine**. It parses the Claude Code-format script (`export const meta = {...}` + plain-JS body), runs the body in a fresh vm context with the workflow hooks injected, and fans `agent()` calls out to [`ctx.subagents`](../../subagent/README.md). + +## The script contract it executes + +- **Meta extraction** (`extractMeta`): a string/comment-aware brace scanner finds the leading `export const meta` literal (template interpolation rejected — the literal must be pure), evaluates it ALONE in an empty timed vm context, materializes the result to plain JSON data, validates the shape (`name`/`description` required; unknown fields rejected loud), and blanks the statement line-preservingly so error stacks keep the script's own line numbers. +- **Hooks**: `agent(prompt, {label, phase, schema, model})` (schema = the [structured-output subset](../../core/tools/README.md), forwarded as `outputSchema`; result = validated object, or final text without a schema; a failed child resolves `null`), `parallel(thunks)`, `pipeline(items, ...stages)` with NO cross-stage barrier and `(prev, item, index)` stage callbacks, `phase(title)`, `log(message)`, and the `args` global. Anything else — `effort`/`isolation`/`agentType`, unknown options, malformed arguments, schemas outside the subset — throws a FATAL `WorkflowError` that `parallel`/`pipeline` re-throw rather than nulling (see the seam README's failure discipline). +- **Determinism bans**: `Date.now()`, `Math.random()`, and argless `new Date()` throw (kept even though resume is deferred, so scripts stay resume-compatible); no timers, filesystem, or Node APIs exist in the context. + +## Realm discipline + +Values ENTERING the host (the meta literal, hook options/schemas, the script's return) are materialized by `materializeFromRealm`: a descriptor walk that never invokes accessors and rejects loud everything JSON cannot carry (accessors, exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`), copying into host containers via `defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Values ENTERING the realm (`args`, `agent()` results) are rebuilt INSIDE the realm through the context's own `JSON.parse`, so the script never holds an object whose prototype chain reaches host intrinsics. + +## Limits, cancellation, disposal + +Per-run: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` aborts every child (a shared `AbortSignal`), rejects waiting `agent()` slots, and makes every future hook call throw `CANCELLED` — the script dies at its next await and the run settles `cancelled`. Once a run settles, stray children a script fired without awaiting are aborted too. Every hook-returned promise carries a no-op rejection consumer, so a dropped promise cannot surface an unhandled rejection (the app boot layer exits the process on those). + +**Documented limitations** (the accepted cost of the in-process mechanism; the seam exists so a worker-thread/isolated-vm engine can swap in): vm is NOT a security boundary — scripts are model-written, the same trust level as the model's bash access — and the vm `timeout` covers only the initial synchronous slice, so a pathological synchronous spin after the first await cannot be killed; `dispose()` waits `disposeGraceMs` then ABANDONS such a script (its settlement stays contained, but an abandoned spin would still occupy the event loop). + +## Config + +| Key | Default | Meaning | +|---|---|---| +| `provider` | `spawn` | The `ctx.subagents` provider children run on. | +| `maxConcurrentAgents` | `0` (auto) | Concurrent `agent()` ceiling; `0` resolves to `min(16, max(1, cores - 2))`. | +| `maxTotalAgents` | `1000` | Total `agent()` calls one run may start (runaway-loop backstop). | +| `maxItemsPerCall` | `4096` | Items accepted by one `parallel()`/`pipeline()` call. | +| `syncTimeoutMs` | `5000` | vm timeout for the initial synchronous slice and the meta evaluation. | +| `disposeGraceMs` | `5000` | How long `dispose()` waits for a cancelled script before abandoning it. | diff --git a/packages/workflow/workflow-vm/package.json b/packages/workflow/workflow-vm/package.json new file mode 100644 index 0000000000..8b1217acc0 --- /dev/null +++ b/packages/workflow/workflow-vm/package.json @@ -0,0 +1,50 @@ +{ + "name": "@deepseek-ai/dsh-workflow-vm", + "description": "node:vm workflow engine: executes model-written orchestration scripts over ctx.subagents", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-agent": "^0.0.1", + "@deepseek-ai/dsh-brand": "^0.0.1", + "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-subagent": "^0.0.1", + "@deepseek-ai/dsh-tools": "^0.0.1", + "@deepseek-ai/dsh-workflow": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "schemastery": "^3.18.0" + }, + "devDependencies": { + "@deepseek-ai/dsh-agent": "workspace:^", + "@deepseek-ai/dsh-agent-loop": "workspace:^", + "@deepseek-ai/dsh-brand": "workspace:^", + "@deepseek-ai/dsh-invariants": "workspace:^", + "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-session": "workspace:^", + "@deepseek-ai/dsh-subagent": "workspace:^", + "@deepseek-ai/dsh-subagent-spawn": "workspace:^", + "@deepseek-ai/dsh-system-prompt": "workspace:^", + "@deepseek-ai/dsh-tools": "workspace:^", + "@deepseek-ai/dsh-workflow": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/workflow/workflow-vm/src/index.ts b/packages/workflow/workflow-vm/src/index.ts new file mode 100644 index 0000000000..914ebb3ba6 --- /dev/null +++ b/packages/workflow/workflow-vm/src/index.ts @@ -0,0 +1,166 @@ +/** + * The `node:vm` workflow engine: the first {@link WorkflowService} + * implementation. Parses the Claude Code-format script (meta + body), runs the + * body in a fresh in-process vm context with the workflow hooks injected, and + * fans `agent()` calls out to `ctx.subagents`. + * + * Engine limitations, documented as the accepted cost of the in-process + * mechanism (the interface/implementation seam exists precisely so a + * worker-thread or isolated-vm engine can swap in if these ever matter): + * + * - vm is NOT a security boundary. Scripts are model-written — the same trust + * level as the model's bash access — and the realm-boundary materialization + * is correctness containment, not a sandbox. + * - The vm `timeout` covers only the initial SYNCHRONOUS slice of the script; + * a pathological synchronous spin after the first await cannot be killed + * in-process. `dispose()` therefore waits a bounded grace and then ABANDONS + * a stuck script: its pending hook promises are already rejected and its + * settlement is contained (no unhandled rejection), but an abandoned + * synchronous spin would still occupy the event loop. + * + * Plugin export shape: a default-exported {@link WorkflowService} subclass + * (the class-based service form, like `dsh-bash-local`). + * + * @module @deepseek-ai/dsh-workflow-vm + */ + +import { randomUUID } from 'node:crypto' +import { availableParallelism } from 'node:os' +import type { Context } from 'cordis' +import z from 'schemastery' +import WorkflowService, { WorkflowRunId } from '@deepseek-ai/dsh-workflow' +import type { WorkflowResult, WorkflowRun, WorkflowRunInfo, WorkflowStartRequest } from '@deepseek-ai/dsh-workflow' +import { extractMeta } from './meta.ts' +import { WorkflowExecution, type ExecutionLimits } from './runtime.ts' + +export { extractMeta, type ExtractedScript } from './meta.ts' +export { materializeFromRealm, MaterializeError } from './realm.ts' +export { WorkflowExecution, type ExecutionLimits, type ExecutionObserver } from './runtime.ts' + +/** Plugin config (all optional — `static Config` supplies the defaults). */ +export interface Config { + /** The `ctx.subagents` provider children run on (default `spawn`). */ + provider?: string + /** Concurrent `agent()` ceiling; `0` (the default) auto-resolves to `min(16, max(1, cores - 2))`. */ + maxConcurrentAgents?: number + /** Total `agent()` calls one run may start — the runaway-loop backstop (default 1000). */ + maxTotalAgents?: number + /** Items accepted by a single `parallel()`/`pipeline()` call (default 4096). */ + maxItemsPerCall?: number + /** vm timeout for the script's initial synchronous slice AND the meta-literal evaluation (default 5000 ms). */ + syncTimeoutMs?: number + /** How long `dispose()` waits for a cancelled script to settle before abandoning it (default 5000 ms). */ + disposeGraceMs?: number +} + +type ResolvedConfig = Required + +/** + * The vm engine service. `start()` validates the script up front (meta + + * body compile) and returns a {@link WorkflowRun} whose `result` never + * rejects; the `workflow/*` events fire around the run per the seam contract. + */ +export class VmWorkflowEngine extends WorkflowService { + static inject = ['subagents'] + + static Config: z = z.object({ + provider: z.string().default('spawn'), + maxConcurrentAgents: z.natural().default(0), + maxTotalAgents: z.natural().min(1).default(1000), + maxItemsPerCall: z.natural().min(1).default(4096), + syncTimeoutMs: z.natural().min(1).default(5000), + disposeGraceMs: z.natural().default(5000), + }) + + private readonly config: ResolvedConfig + + constructor(ctx: Context, config: Config) { + super(ctx) + // schemastery (static Config) has already filled the defaulted fields; + // the assertion records that resolution, not a hidden fallback. + this.config = config as ResolvedConfig + } + + /** + * Parse and execute a workflow script. Throws {@link WorkflowError} + * synchronously (`SCRIPT_PARSE`/`META_INVALID`) for a script that cannot + * begin; once a run is returned, every failure resolves through + * `result.stopReason` instead. + * @param request - the script, its `args`, the parent agent, and an + * optional cancel signal. + * @returns the live run (its `result` resolves when the script settles). + */ + start(request: WorkflowStartRequest): WorkflowRun { + const { meta, body } = extractMeta(request.script, this.config.syncTimeoutMs) + const id = WorkflowRunId(randomUUID()) + // The event payloads and the run handle get SEPARATE meta clones: a + // listener mutating its snapshot must not corrupt the holder's view. + const info: WorkflowRunInfo = { id, meta: structuredClone(meta) } + const limits: ExecutionLimits = { + provider: this.config.provider, + maxConcurrentAgents: this.config.maxConcurrentAgents === 0 + ? Math.min(16, Math.max(1, availableParallelism() - 2)) + : this.config.maxConcurrentAgents, + maxTotalAgents: this.config.maxTotalAgents, + maxItemsPerCall: this.config.maxItemsPerCall, + syncTimeoutMs: this.config.syncTimeoutMs, + } + const execution = new WorkflowExecution( + this.ctx, + meta, + body, + request.parent, + request.args, + request.signal, + limits, + { + phase: (title) => { this.emitWorkflowEvent('workflow/phase', info, title) }, + log: (message) => { this.emitWorkflowEvent('workflow/log', info, message) }, + agentStart: (agent) => { this.emitWorkflowEvent('workflow/agent-start', info, agent) }, + agentEnd: (agent) => { this.emitWorkflowEvent('workflow/agent-end', info, agent) }, + }, + ) + + this.emitWorkflowEvent('workflow/start', info) + const result: Promise = execution.drive() + // `workflow/end` fires as the (never-rejecting) result settles, with the + // outcome DATA only — the value stays with the run's holder. + void result.then((settled) => { + this.emitWorkflowEvent('workflow/end', info, { + stopReason: settled.stopReason, + ...settled.error !== undefined ? { error: settled.error } : {}, + agentsStarted: settled.agentsStarted, + }) + }) + + let disposed: Promise | undefined + return { + id, + meta: structuredClone(meta), + result, + cancel(reason?: string): void { + execution.cancel(reason) + }, + dispose: (): Promise => { + // Idempotent: cancel, then wait min(settle, grace). `result` never + // rejects, so the race needs no rejection handling; an unsettled + // script past the grace is abandoned per the module contract. + disposed ??= (async () => { + execution.cancel('workflow disposed') + await Promise.race([result, sleep(this.config.disposeGraceMs)]) + })() + return disposed + }, + } + } +} + +/** A plain timer sleep (the dispose grace); unref'd so it never holds the process open. */ +function sleep(ms: number): Promise { + return new Promise((resolve) => { + const timer = setTimeout(resolve, ms) + timer.unref() + }) +} + +export default VmWorkflowEngine diff --git a/packages/workflow/workflow-vm/src/meta.ts b/packages/workflow/workflow-vm/src/meta.ts new file mode 100644 index 0000000000..bb97ad7d39 --- /dev/null +++ b/packages/workflow/workflow-vm/src/meta.ts @@ -0,0 +1,198 @@ +/** + * Meta-block extraction: turn a Claude Code-format workflow script — + * `export const meta = {...}` followed by a plain-JS body — into a validated + * {@link WorkflowMeta} plus the body with the meta statement blanked + * line-preservingly (error stacks keep the script's own line numbers). + * + * The scanner is a small string/comment-aware brace matcher, not a JS parser: + * it only has to find the END of the meta object literal, and the literal is + * contractually PURE (no interpolation, no computed values). Template strings + * are tolerated as plain quotes but `${` inside one is rejected up front — + * interpolation is where "literal" stops being checkable by evaluation. The + * extracted text is then evaluated ALONE in an empty, timed vm context (a + * non-literal reference throws there; an expression can still RUN, so the + * result — not the source — is the contract: it must materialize to plain + * JSON data and pass the shape validation). + * + * @module @deepseek-ai/dsh-workflow-vm/meta + */ + +import * as vm from 'node:vm' +import { WorkflowError } from '@deepseek-ai/dsh-workflow' +import type { WorkflowMeta, WorkflowPhase } from '@deepseek-ai/dsh-workflow' +import { materializeFromRealm, MaterializeError } from './realm.ts' + +/** The result of {@link extractMeta}: the validated meta and the runnable body. */ +export interface ExtractedScript { + meta: WorkflowMeta + /** The script with the meta statement blanked (newlines preserved). */ + body: string +} + +const META_PREFIX = /^\s*(?:\/\/[^\n]*\n|\/\*[\s\S]*?\*\/\s*|\s+)*export\s+const\s+meta\s*=\s*/ + +/** + * Scan `source` from `start` (an opening `{`) to its matching `}`, aware of + * string literals (`'`/`"`/backtick, with escapes) and comments. Returns the + * index AFTER the closing brace. Throws `SCRIPT_PARSE` on template + * interpolation (`${` inside a backtick string) or an unterminated literal. + */ +function scanObjectLiteral(source: string, start: number): number { + let depth = 0 + let index = start + while (index < source.length) { + const ch = source.charAt(index) + if (ch === '/' && source[index + 1] === '/') { + const end = source.indexOf('\n', index) + index = end === -1 ? source.length : end + 1 + continue + } + if (ch === '/' && source[index + 1] === '*') { + const end = source.indexOf('*/', index + 2) + if (end === -1) throw new WorkflowError('meta block has an unterminated comment', 'SCRIPT_PARSE') + index = end + 2 + continue + } + if (ch === '\'' || ch === '"' || ch === '`') { + index = scanString(source, index, ch) + continue + } + if (ch === '{' || ch === '[') depth += 1 + if (ch === '}' || ch === ']') { + depth -= 1 + if (depth === 0) return index + 1 + } + index += 1 + } + throw new WorkflowError('meta block is not a balanced object literal', 'SCRIPT_PARSE') +} + +/** Scan past one string literal starting at `start` (the quote char); returns the index after the closing quote. */ +function scanString(source: string, start: number, quote: string): number { + let index = start + 1 + while (index < source.length) { + const ch = source.charAt(index) + if (ch === '\\') { + index += 2 + continue + } + if (quote === '`' && ch === '$' && source[index + 1] === '{') { + throw new WorkflowError('template interpolation (`${...}`) is not allowed in the meta block — meta must be a pure literal', 'SCRIPT_PARSE') + } + if (ch === quote) return index + 1 + index += 1 + } + throw new WorkflowError('meta block has an unterminated string literal', 'SCRIPT_PARSE') +} + +/** Replace `[from, to)` of `source` with whitespace, preserving every newline (line numbers survive). */ +function blankSpan(source: string, from: number, to: number): string { + const blanked = source.slice(from, to).replace(/[^\n]/g, ' ') + return source.slice(0, from) + blanked + source.slice(to) +} + +/** Collect shape violations for an evaluated meta value (already materialized to host JSON data). */ +function validateMetaShape(meta: unknown): { meta?: WorkflowMeta; violations: string[] } { + const violations: string[] = [] + /* v8 ignore next 3 -- defensive: the scanner only extracts a brace-delimited literal, which always evaluates to a plain object */ + if (typeof meta !== 'object' || meta === null || Array.isArray(meta)) { + return { violations: ['meta must be an object literal'] } + } + const record = meta as Record + const known = new Set(['name', 'description', 'whenToUse', 'phases']) + for (const key of Object.keys(record)) { + if (!known.has(key)) violations.push(`meta.${key} is not a recognized field (name/description/whenToUse/phases)`) + } + if (typeof record.name !== 'string' || record.name.length === 0) violations.push('meta.name must be a non-empty string') + if (typeof record.description !== 'string' || record.description.length === 0) violations.push('meta.description must be a non-empty string') + if (record.whenToUse !== undefined && typeof record.whenToUse !== 'string') violations.push('meta.whenToUse must be a string') + const phases: WorkflowPhase[] = [] + if (record.phases !== undefined) { + if (!Array.isArray(record.phases)) { + violations.push('meta.phases must be an array') + } else { + record.phases.forEach((phase, index) => { + if (typeof phase !== 'object' || phase === null || Array.isArray(phase)) { + violations.push(`meta.phases[${index}] must be an object`) + return + } + const entry = phase as Record + for (const key of Object.keys(entry)) { + if (!['title', 'detail', 'model'].includes(key)) violations.push(`meta.phases[${index}].${key} is not a recognized field`) + } + if (typeof entry.title !== 'string' || entry.title.length === 0) violations.push(`meta.phases[${index}].title must be a non-empty string`) + if (entry.detail !== undefined && typeof entry.detail !== 'string') violations.push(`meta.phases[${index}].detail must be a string`) + if (entry.model !== undefined && typeof entry.model !== 'string') violations.push(`meta.phases[${index}].model must be a string`) + if (violations.length === 0) { + phases.push({ + title: entry.title as string, + ...entry.detail !== undefined ? { detail: entry.detail as string } : {}, + ...entry.model !== undefined ? { model: entry.model as string } : {}, + }) + } + }) + } + } + if (violations.length > 0) return { violations } + return { + violations, + meta: { + name: record.name as string, + description: record.description as string, + ...record.whenToUse !== undefined ? { whenToUse: record.whenToUse as string } : {}, + ...record.phases !== undefined ? { phases } : {}, + }, + } +} + +/** + * Extract and validate the leading `export const meta = {...}` statement. + * Throws {@link WorkflowError} — `SCRIPT_PARSE` when the statement is missing + * or unscannable, `META_INVALID` when the literal evaluates to something + * outside the meta contract (non-JSON data, wrong shape, unknown fields). + * @param script - the full script text. + * @param evalTimeoutMs - the vm timeout for evaluating the extracted literal. + * @returns the validated meta and the line-preservingly blanked body. + */ +export function extractMeta(script: string, evalTimeoutMs: number): ExtractedScript { + const match = META_PREFIX.exec(script) + if (!match) { + throw new WorkflowError('script must begin with `export const meta = {...}` (leading comments allowed)', 'SCRIPT_PARSE') + } + const literalStart = match[0].length + if (script[literalStart] !== '{') { + throw new WorkflowError('`export const meta =` must be followed by an object literal', 'SCRIPT_PARSE') + } + const literalEnd = scanObjectLiteral(script, literalStart) + const literal = script.slice(literalStart, literalEnd) + + let evaluated: unknown + try { + // An EMPTY context: any non-literal reference (a variable, a call) throws + // here. The result — data only — is what the contract checks; a getter or + // IIFE can still run, which is why the timeout and the materialization + // below are part of the same boundary. + evaluated = vm.runInNewContext(`(${literal})`, undefined, { timeout: evalTimeoutMs }) + } catch (error: unknown) { + throw new WorkflowError(`meta block failed to evaluate as a pure literal: ${String(error)}`, 'META_INVALID', { cause: error }) + } + let data: unknown + try { + data = materializeFromRealm(evaluated, 'meta') + } catch (error: unknown) { + /* v8 ignore next -- defensive rethrow arm: materializeFromRealm only throws MaterializeError */ + if (!(error instanceof MaterializeError)) throw error + throw new WorkflowError(`meta block is not pure JSON data — ${error.message}`, 'META_INVALID', { cause: error }) + } + const { meta, violations } = validateMetaShape(data) + if (meta === undefined) { + throw new WorkflowError(`invalid meta block: ${violations.join('; ')}`, 'META_INVALID') + } + + // Blank the whole statement (including a trailing semicolon, if any) so the + // body compiles standalone with its original line numbers. + let statementEnd = literalEnd + while (statementEnd < script.length && (script[statementEnd] === ' ' || script[statementEnd] === '\t')) statementEnd += 1 + if (script[statementEnd] === ';') statementEnd += 1 + return { meta, body: blankSpan(script, 0, statementEnd) } +} diff --git a/packages/workflow/workflow-vm/src/realm.ts b/packages/workflow/workflow-vm/src/realm.ts new file mode 100644 index 0000000000..70745cb4f6 --- /dev/null +++ b/packages/workflow/workflow-vm/src/realm.ts @@ -0,0 +1,142 @@ +/** + * Realm-boundary materialization for the vm engine. + * + * Values produced INSIDE the script realm (the meta literal, hook arguments, + * the script's return value) must become plain host-realm JSON data before the + * host touches them. The repo's `isJsonValue` guard cannot run first: it is + * prototype-strict (any cross-realm object fails it) and it INVOKES getters + * (letting realm code run outside the vm's timed window). So this module walks + * own-property DESCRIPTORS — never invoking accessors — and copies data into + * host containers, rejecting loud everything JSON cannot carry: + * accessor properties, non-plain prototypes, functions, symbols (keys or + * values), bigints, non-finite numbers, `undefined` values, cycles, sparse + * arrays, and arrays with non-index own properties. + * + * Host objects are built with `Object.defineProperty` into a fresh `{}` — + * never plain `target[key] =` assignment, which a `"__proto__"` key would turn + * into prototype mutation instead of a data property. + * + * The host→realm direction deliberately does NOT live here: a host object + * handed into the realm would expose host intrinsics through its prototype + * chain, so the engine rebuilds inbound values INSIDE the realm via the + * context's own `JSON.parse` (see the runtime). + * + * @module @deepseek-ai/dsh-workflow-vm/realm + */ + +/** Thrown by {@link materializeFromRealm}; the caller wraps it into the right `WorkflowError` code. */ +export class MaterializeError extends Error { + constructor(public readonly path: string, public readonly reason: string) { + super(`${path}: ${reason}`) + this.name = 'MaterializeError' + } +} + +/** + * Whether an object's prototype chain is data-shaped: `null`, or a prototype + * whose own prototype is `null` (the realm's `Object.prototype` — which we + * cannot compare by identity across realms). A `Date`/`Map`/class instance + * has a longer chain and is rejected. + */ +function hasPlainPrototype(value: object): boolean { + const proto: unknown = Object.getPrototypeOf(value) + if (proto === null) return true + return Object.getPrototypeOf(proto) === null +} + +/** + * Copy `value` (typically from the vm realm) into plain host JSON data. + * Throws {@link MaterializeError} naming the offending path for anything JSON + * cannot carry losslessly. Accessors are detected via descriptors and NEVER + * invoked. `undefined` is accepted only at the ROOT (a script with no + * `return` value) — the caller decides what it means; an `undefined` nested + * INSIDE a container is a violation. + * @param value - the realm value to materialize. + * @param root - the path label for the root value (error messages). + * @returns the host-realm copy (plain objects/arrays/scalars only). + */ +export function materializeFromRealm(value: unknown, root = 'value'): unknown { + if (value === undefined) return undefined + return materialize(value, root, new Set()) +} + +function materialize(value: unknown, path: string, seen: Set): unknown { + switch (typeof value) { + case 'boolean': + case 'string': + return value + case 'number': { + if (!Number.isFinite(value)) throw new MaterializeError(path, 'non-finite numbers are not JSON data') + return value + } + case 'bigint': + throw new MaterializeError(path, 'bigints are not JSON data') + case 'function': + throw new MaterializeError(path, 'functions cannot cross the workflow realm boundary') + case 'symbol': + throw new MaterializeError(path, 'symbols cannot cross the workflow realm boundary') + case 'undefined': + throw new MaterializeError(path, 'undefined is not JSON data') + case 'object': + break + } + if (value === null) return null + const objectValue: object = value + if (seen.has(objectValue)) throw new MaterializeError(path, 'circular references are not JSON data') + seen.add(objectValue) + try { + if (Array.isArray(objectValue)) return materializeArray(objectValue, path, seen) + return materializeObject(objectValue, path, seen) + } finally { + seen.delete(objectValue) + } +} + +function materializeArray(value: unknown[], path: string, seen: Set): unknown[] { + const out: unknown[] = [] + for (let index = 0; index < value.length; index++) { + const descriptor = Object.getOwnPropertyDescriptor(value, index) + if (descriptor === undefined) throw new MaterializeError(`${path}[${index}]`, 'sparse arrays are not JSON data') + if (!('value' in descriptor)) throw new MaterializeError(`${path}[${index}]`, 'accessor properties cannot cross the workflow realm boundary') + out.push(materialize(descriptor.value, `${path}[${index}]`, seen)) + } + // Own enumerable props beyond the indices (e.g. `arr.total = 3`) would be + // silently dropped by JSON — reject them instead. + for (const key of Object.keys(value)) { + const index = Number(key) + if (!Number.isInteger(index) || index < 0 || index >= value.length) { + throw new MaterializeError(`${path}.${key}`, 'arrays with non-index properties are not JSON data') + } + } + if (Object.getOwnPropertySymbols(value).length > 0) { + throw new MaterializeError(path, 'symbol-keyed properties cannot cross the workflow realm boundary') + } + return out +} + +function materializeObject(value: object, path: string, seen: Set): Record { + if (!hasPlainPrototype(value)) { + throw new MaterializeError(path, 'only plain objects and arrays are JSON data (exotic prototype)') + } + if (Object.getOwnPropertySymbols(value).length > 0) { + throw new MaterializeError(path, 'symbol-keyed properties cannot cross the workflow realm boundary') + } + const out: Record = {} + for (const [key, descriptor] of Object.entries(Object.getOwnPropertyDescriptors(value))) { + // Non-enumerable own props never reach JSON output — skip them, matching + // JSON.stringify's contract exactly (documented in the module doc). + if (!descriptor.enumerable) continue + if (!('value' in descriptor)) { + throw new MaterializeError(`${path}.${key}`, 'accessor properties cannot cross the workflow realm boundary') + } + // defineProperty, never assignment: a "__proto__" key must become an OWN + // data property of the copy, not a prototype mutation. + Object.defineProperty(out, key, { + value: materialize(descriptor.value, `${path}.${key}`, seen), + enumerable: true, + writable: true, + configurable: true, + }) + } + return out +} diff --git a/packages/workflow/workflow-vm/src/runtime.ts b/packages/workflow/workflow-vm/src/runtime.ts new file mode 100644 index 0000000000..04176a11ac --- /dev/null +++ b/packages/workflow/workflow-vm/src/runtime.ts @@ -0,0 +1,499 @@ +/** + * Per-run execution state for the vm workflow engine: the script context and + * its injected hooks (`agent`/`parallel`/`pipeline`/`phase`/`log`/`args`), the + * concurrency semaphore and caps, cancellation, and the drive loop that turns + * a script settlement into a {@link WorkflowResult}. + * + * Realm discipline (see also ./realm.ts): values ENTERING the host from the + * script (hook options, schemas, the return value) are materialized via + * descriptor walks; values ENTERING the realm from the host (`args`, agent() + * results) are rebuilt INSIDE the realm through the context's own + * `JSON.parse`, so the script never holds an object whose prototype chain + * reaches host intrinsics. Realm functions (pipeline stages, parallel thunks) + * are called, not materialized — their values stay realm-side. + * + * Failure discipline: fatal {@link WorkflowError}s (bad hook arguments, + * unsupported options/schemas, tripped caps, seam start failures, + * cancellation) ALWAYS propagate through `parallel`/`pipeline`; the per-item + * `null` is reserved for child-run failures and ordinary in-stage script + * errors. Every hook-returned promise gets a no-op rejection consumer + * attached, so a script that drops a promise (fires an `agent()` without + * awaiting it) cannot surface an unhandled rejection when cancellation + * rejects it — the app boot layer exits the process on unhandled rejections. + * + * @module @deepseek-ai/dsh-workflow-vm/runtime + */ + +import * as vm from 'node:vm' +import type { Context } from 'cordis' +import type { ContentBlock } from '@deepseek-ai/dsh-llm' +import type { Agent } from '@deepseek-ai/dsh-agent' +import type {} from '@deepseek-ai/dsh-subagent' +import { assertSupportedOutputSchema, OutputSchemaError } from '@deepseek-ai/dsh-tools' +import type { StructuredOutputSchema } from '@deepseek-ai/dsh-tools' +import { WorkflowError, isFatalWorkflowError } from '@deepseek-ai/dsh-workflow' +import type { + WorkflowAgentEndInfo, + WorkflowAgentInfo, + WorkflowMeta, + WorkflowResult, +} from '@deepseek-ai/dsh-workflow' +import { materializeFromRealm, MaterializeError } from './realm.ts' + +/** The per-run knobs the engine resolves from its Config. */ +export interface ExecutionLimits { + /** The `ctx.subagents` provider name to start children on. */ + provider: string + /** Concurrent `agent()` ceiling (already auto-resolved; ≥ 1). */ + maxConcurrentAgents: number + /** Total `agent()` calls per run (the runaway-loop backstop). */ + maxTotalAgents: number + /** Items accepted by one `parallel()`/`pipeline()` call. */ + maxItemsPerCall: number + /** vm timeout for the script's initial synchronous slice. */ + syncTimeoutMs: number +} + +/** The engine-side observers the execution reports progress through. */ +export interface ExecutionObserver { + phase(title: string): void + log(message: string): void + agentStart(info: WorkflowAgentInfo): void + agentEnd(info: WorkflowAgentEndInfo): void +} + +/** The `agent()` options the script may pass; everything else rejects loud. */ +const SUPPORTED_AGENT_OPTIONS = new Set(['label', 'phase', 'schema', 'model']) +/** Deferred Claude Code options we name explicitly in the rejection message. */ +const DEFERRED_AGENT_OPTIONS = new Set(['effort', 'isolation', 'agentType']) + +/** The in-context prelude that bans the nondeterminism sources (kept even though resume is deferred, so scripts stay resume-compatible). */ +const DETERMINISM_PRELUDE = ` +{ + const banned = (name) => () => { + throw new Error(name + ' is not available in workflow scripts (runs must stay deterministic for future resume support; pass timestamps in via args)') + } + Math.random = banned('Math.random()') + Date.now = banned('Date.now()') + const RealDate = Date + globalThis.Date = new Proxy(RealDate, { + construct(target, args, newTarget) { + if (args.length === 0) banned('argless new Date()')() + return Reflect.construct(target, args, newTarget) + }, + apply: banned('Date()'), + }) +} +` + +/** Flatten a child's final output blocks to text (the non-schema `agent()` result). */ +function outputText(blocks: ContentBlock[]): string { + return blocks + .filter((block): block is Extract => block.type === 'text') + .map(block => block.text) + .join('') +} + +/** + * Render a script failure for the result: prefer the stack (it carries the + * script's own line numbers via the compile lineOffset), then the message. + * STRUCTURAL detection, not `instanceof Error` — a realm-thrown Error is not + * an instance of the host Error class. + */ +function errorText(error: unknown): string { + if (typeof error === 'object' && error !== null) { + const maybe = error as { stack?: unknown; message?: unknown } + if (typeof maybe.stack === 'string' && maybe.stack.length > 0) return maybe.stack + if (typeof maybe.message === 'string') return maybe.message + } + return String(error) +} + +/** A short display label derived from the prompt when the script passes none. */ +function defaultLabel(prompt: string): string { + const newline = prompt.indexOf('\n') + const line = newline === -1 ? prompt : prompt.slice(0, newline) + return line.length <= 48 ? line : `${line.slice(0, 47)}…` +} + +/** + * One live script execution. Constructed per run by the engine; `drive()` is + * called exactly once and NEVER rejects — every failure becomes a + * {@link WorkflowResult} with a non-`completed` stop reason. + */ +export class WorkflowExecution { + /** 1-based count of `agent()` calls started (the `agentsStarted` result field). */ + private started = 0 + private activeSlots = 0 + private readonly slotWaiters: { resolve(): void; reject(error: unknown): void }[] = [] + private cancelReason: string | undefined + private cancelError: WorkflowError | undefined + private readonly controller = new AbortController() + private currentPhase: string | undefined + private readonly context: vm.Context + private readonly realmJsonParse: (text: string) => unknown + private readonly compiled: vm.Script + + constructor( + private readonly ctx: Context, + meta: WorkflowMeta, + body: string, + private readonly parent: Agent, + args: unknown, + signal: AbortSignal | undefined, + private readonly limits: ExecutionLimits, + private readonly observer: ExecutionObserver, + ) { + // Compile FIRST: a body syntax error must throw out of the constructor + // (the engine maps it to SCRIPT_PARSE) before any realm state exists. + // lineOffset compensates for the wrapper line, so stack traces carry the + // script's own line numbers (the meta statement was blanked, not removed). + try { + this.compiled = new vm.Script(`(async () => {\n${body}\n})()`, { + filename: `workflow:${meta.name}`, + lineOffset: -1, + }) + } catch (error: unknown) { + throw new WorkflowError(`workflow script does not parse: ${String(error)}`, 'SCRIPT_PARSE', { cause: error }) + } + + this.context = vm.createContext({}, { name: `workflow:${meta.name}` }) + vm.runInContext(DETERMINISM_PRELUDE, this.context) + // The realm's own JSON.parse — the host→realm rebuild channel. + const realmJson = vm.runInContext('JSON', this.context) as { parse(text: string): unknown } + this.realmJsonParse = (text: string) => realmJson.parse(text) + + const globals: Record = { + agent: (prompt: unknown, opts?: unknown) => this.contain(this.agent(prompt, opts)), + parallel: (thunks: unknown) => this.contain(this.parallel(thunks)), + pipeline: (items: unknown, ...stages: unknown[]) => this.contain(this.pipeline(items, stages)), + phase: (title: unknown) => { this.phase(title) }, + log: (message: unknown) => { this.log(message) }, + args: this.toRealm(args), + } + for (const [key, value] of Object.entries(globals)) { + // Data properties on the contextified global; frozen shape not required — + // a script overwriting its own hooks only sabotages itself. + ;(this.context as Record)[key] = typeof value === 'function' ? Object.freeze(value) : value + } + + if (signal?.aborted) { + this.cancel('workflow start signal already aborted') + } else { + signal?.addEventListener('abort', () => { this.cancel('workflow signal aborted') }, { once: true }) + } + } + + /** + * Whether the run has been cancelled. A METHOD, not an inline property + * read: `cancel()` mutates `cancelReason` concurrently (a signal listener, + * a raced dispose), and an inline read after an `await` gets narrowed by + * control flow into an always-false comparison. + */ + private isCancelled(): boolean { + return this.cancelReason !== undefined + } + + /** + * Cancel the run: children abort (the shared signal), waiting `agent()` + * slots reject, and every future hook call throws `CANCELLED` — the script + * dies at its next await. Idempotent; the first reason wins. + */ + cancel(reason?: string): void { + if (this.cancelReason !== undefined) return + this.cancelReason = reason ?? 'workflow cancelled' + this.cancelError = new WorkflowError(`workflow run cancelled: ${this.cancelReason}`, 'CANCELLED') + this.controller.abort(this.cancelReason) + for (const waiter of this.slotWaiters.splice(0)) waiter.reject(this.cancelledError()) + } + + /** + * Run the script to settlement. Resolves — never rejects — with the run's + * {@link WorkflowResult}: the materialized return value on `completed`, the + * failure message on `error`, and `cancelled` when the script died of + * cancellation. After settlement, any stray children a script fired without + * awaiting are aborted (their `agent()` wrappers dispose them). + */ + async drive(): Promise { + try { + const scriptPromise = this.compiled.runInContext(this.context, { timeout: this.limits.syncTimeoutMs }) as Promise + const raw: unknown = await this.contain(Promise.resolve(scriptPromise)) + const value = raw === undefined ? null : this.materializeResult(raw) + return { value, stopReason: 'completed', agentsStarted: this.started } + } catch (error: unknown) { + if (error instanceof WorkflowError && error.code === 'CANCELLED') { + return { value: null, stopReason: 'cancelled', error: error.message, agentsStarted: this.started } + } + return { value: null, stopReason: 'error', error: errorText(error), agentsStarted: this.started } + } finally { + // Reap strays: a script that fired agent() calls without awaiting them + // leaves live children behind after settlement — abort them all. (The + // per-call wrappers dispose each child; the contain() consumer keeps + // their rejections from going unhandled.) + if (this.cancelReason === undefined) this.cancel('workflow settled') + } + } + + /** + * Attach a no-op rejection consumer WITHOUT changing what the caller + * receives: if the script drops the promise (no await), cancellation cannot + * become an unhandled rejection (the app boot layer exits the process on + * those); if the script does await it, it still observes the rejection. + */ + private contain(promise: Promise): Promise { + promise.catch(() => { /* consumed: see method contract — a dropped hook promise must not surface an unhandled rejection */ }) + return promise + } + + private cancelledError(): WorkflowError { + // cancel() arms cancelError before any caller can observe isCancelled() + // === true; the fallback guards the type, not a reachable path. + /* v8 ignore next */ + return this.cancelError ?? new WorkflowError('workflow run cancelled', 'CANCELLED') + } + + /** Rebuild a host value inside the script realm (via the realm's own JSON.parse). */ + private toRealm(value: unknown): unknown { + if (value === undefined) return undefined + if (value === null) return null + if (typeof value === 'string' || typeof value === 'number' || typeof value === 'boolean') return value + return this.realmJsonParse(JSON.stringify(value)) + } + + /** Materialize the script's return value; violations become RESULT_UNSERIALIZABLE. */ + private materializeResult(raw: unknown): unknown { + try { + return materializeFromRealm(raw, 'workflow result') + } catch (error: unknown) { + /* v8 ignore next -- defensive rethrow arm: materializeFromRealm only throws MaterializeError */ + if (!(error instanceof MaterializeError)) throw error + throw new WorkflowError( + `the workflow's return value is not plain JSON data — ${error.message}. Return only JSON-serializable objects/arrays/scalars.`, + 'RESULT_UNSERIALIZABLE', + { cause: error }, + ) + } + } + + /** + * Acquire one concurrency slot (FIFO). Cancellation rejects QUEUED waiters + * (see {@link cancel}); the callers guard their own entry and post-acquire + * windows, so no cancelled-precheck is duplicated here. + */ + private acquireSlot(): Promise { + if (this.activeSlots < this.limits.maxConcurrentAgents) { + this.activeSlots += 1 + return Promise.resolve() + } + return new Promise((resolve, reject) => { + this.slotWaiters.push({ + resolve: () => { + this.activeSlots += 1 + resolve() + }, + reject, + }) + }) + } + + private releaseSlot(): void { + this.activeSlots -= 1 + const next = this.slotWaiters.shift() + if (next) next.resolve() + } + + /** The `agent(prompt, opts)` hook. */ + private async agent(rawPrompt: unknown, rawOpts: unknown): Promise { + if (this.isCancelled()) throw this.cancelledError() + if (typeof rawPrompt !== 'string' || rawPrompt.length === 0) { + throw new WorkflowError('agent() requires a non-empty prompt string', 'INVALID_ARGUMENT') + } + const opts = this.readAgentOptions(rawOpts) + if (this.started >= this.limits.maxTotalAgents) { + throw new WorkflowError( + `this run reached its total agent cap (${this.limits.maxTotalAgents}) — a runaway-loop backstop; raise maxTotalAgents in the engine config if the scale is intentional`, + 'AGENT_CAP', + ) + } + this.started += 1 + const seq = this.started + const label = opts.label ?? defaultLabel(rawPrompt) + const phase = opts.phase ?? this.currentPhase + + await this.acquireSlot() + try { + // No cancelled re-check here: a cancel cannot interleave between a + // waiter's resolution and this continuation (single-threaded, no await + // between them), and a child started moments after a cancel still dies + // via the shared abort signal — the CANCELLED mapping below covers it. + let run + try { + run = this.ctx.subagents.start(this.limits.provider, { + prompt: [{ type: 'text', text: rawPrompt }], + parent: this.parent, + signal: this.controller.signal, + ...opts.schema !== undefined ? { outputSchema: opts.schema } : {}, + ...opts.model !== undefined ? { agentOptions: { model: opts.model } } : {}, + }) + } catch (error: unknown) { + throw new WorkflowError(`agent() could not start a child on provider "${this.limits.provider}": ${String(error)}`, 'AGENT_START', { cause: error }) + } + const info: WorkflowAgentInfo = { seq, label, ...phase !== undefined ? { phase } : {}, childId: run.id } + this.observer.agentStart(info) + try { + const result = await run.result + if (result.stopReason === 'completed') { + if (opts.schema !== undefined) { + // The provider honored outputSchema (capability-gated at start), so + // a completed run without a structured value is a child failure. + if (result.structured === undefined) { + this.observer.agentEnd({ ...info, outcome: 'failed' }) + return null + } + this.observer.agentEnd({ ...info, outcome: 'completed' }) + return this.toRealm(result.structured) + } + this.observer.agentEnd({ ...info, outcome: 'completed' }) + return outputText(result.output) + } + // A cancelled RUN kills the script; a child that failed for its own + // reasons resolves null (scripts .filter(Boolean) per the CC contract). + if (this.isCancelled()) { + this.observer.agentEnd({ ...info, outcome: 'cancelled' }) + throw this.cancelledError() + } + this.observer.agentEnd({ ...info, outcome: 'failed' }) + return null + } finally { + await run.dispose() + } + } finally { + this.releaseSlot() + } + } + + /** Materialize + validate the `agent()` options bag from the realm. */ + private readAgentOptions(rawOpts: unknown): { label?: string; phase?: string; model?: string; schema?: StructuredOutputSchema } { + if (rawOpts === undefined) return {} + let opts: unknown + try { + opts = materializeFromRealm(rawOpts, 'agent() options') + } catch (error: unknown) { + /* v8 ignore next -- defensive rethrow arm: materializeFromRealm only throws MaterializeError */ + if (!(error instanceof MaterializeError)) throw error + throw new WorkflowError(`agent() options must be plain JSON data — ${error.message}`, 'INVALID_ARGUMENT', { cause: error }) + } + if (typeof opts !== 'object' || opts === null || Array.isArray(opts)) { + throw new WorkflowError('agent() options must be an object', 'INVALID_ARGUMENT') + } + const record = opts as Record + for (const key of Object.keys(record)) { + if (SUPPORTED_AGENT_OPTIONS.has(key)) continue + if (DEFERRED_AGENT_OPTIONS.has(key)) { + throw new WorkflowError(`agent() option "${key}" is deferred and not supported by this engine (supported: label, phase, schema, model)`, 'UNSUPPORTED_OPTION') + } + throw new WorkflowError(`agent() option "${key}" is not recognized (supported: label, phase, schema, model)`, 'UNSUPPORTED_OPTION') + } + for (const key of ['label', 'phase', 'model'] as const) { + if (record[key] !== undefined && typeof record[key] !== 'string') { + throw new WorkflowError(`agent() option "${key}" must be a string`, 'INVALID_ARGUMENT') + } + } + let schema: StructuredOutputSchema | undefined + if (record.schema !== undefined) { + try { + assertSupportedOutputSchema(record.schema) + schema = record.schema + } catch (error: unknown) { + /* v8 ignore next -- defensive rethrow arm: assertSupportedOutputSchema only throws OutputSchemaError */ + if (!(error instanceof OutputSchemaError)) throw error + throw new WorkflowError(`agent() schema is outside the supported subset — ${error.message}`, 'UNSUPPORTED_SCHEMA', { cause: error }) + } + } + return { + ...record.label !== undefined ? { label: record.label as string } : {}, + ...record.phase !== undefined ? { phase: record.phase as string } : {}, + ...record.model !== undefined ? { model: record.model as string } : {}, + ...schema !== undefined ? { schema } : {}, + } + } + + /** The `parallel(thunks)` hook: each thunk caught → `null`; fatal errors propagate. */ + private async parallel(rawThunks: unknown): Promise { + if (!Array.isArray(rawThunks)) { + throw new WorkflowError('parallel() requires an array of zero-argument functions', 'INVALID_ARGUMENT') + } + this.assertItemCap(rawThunks.length, 'parallel()') + const thunks = rawThunks.map((thunk, index) => { + if (typeof thunk !== 'function') { + throw new WorkflowError(`parallel() item ${index} is not a function`, 'INVALID_ARGUMENT') + } + return thunk as () => unknown + }) + return Promise.all(thunks.map(async (thunk) => { + try { + return await thunk() + } catch (error: unknown) { + if (isFatalWorkflowError(error)) throw error + return null + } + })) + } + + /** The `pipeline(items, ...stages)` hook: per-item stage chains, NO cross-stage barrier. */ + private async pipeline(rawItems: unknown, rawStages: unknown[]): Promise { + if (!Array.isArray(rawItems)) { + throw new WorkflowError('pipeline() requires an items array', 'INVALID_ARGUMENT') + } + this.assertItemCap(rawItems.length, 'pipeline()') + if (rawStages.length === 0) { + throw new WorkflowError('pipeline() requires at least one stage function', 'INVALID_ARGUMENT') + } + const stages = rawStages.map((stage, index) => { + if (typeof stage !== 'function') { + throw new WorkflowError(`pipeline() stage ${index} is not a function`, 'INVALID_ARGUMENT') + } + return stage as (previous: unknown, item: unknown, index: number) => unknown + }) + return Promise.all(rawItems.map(async (item: unknown, index) => { + let value: unknown = item + try { + for (const stage of stages) { + value = await stage(value, item, index) + } + return value + } catch (error: unknown) { + // An ordinary stage throw drops the ITEM to null and skips its + // remaining stages; a fatal error kills the whole script. + if (isFatalWorkflowError(error)) throw error + return null + } + })) + } + + private assertItemCap(length: number, hook: string): void { + if (length > this.limits.maxItemsPerCall) { + throw new WorkflowError( + `${hook} received ${length} items — over the per-call cap (${this.limits.maxItemsPerCall}); split the work or raise maxItemsPerCall in the engine config`, + 'ITEM_CAP', + ) + } + } + + /** The `phase(title)` hook: sets the current label for subsequent `agent()` calls and notifies observers. */ + private phase(title: unknown): void { + if (typeof title !== 'string' || title.length === 0) { + throw new WorkflowError('phase() requires a non-empty title string', 'INVALID_ARGUMENT') + } + this.currentPhase = title + this.observer.phase(title) + } + + /** The `log(message)` hook: narration to observers. */ + private log(message: unknown): void { + if (typeof message !== 'string') { + throw new WorkflowError('log() requires a message string', 'INVALID_ARGUMENT') + } + this.observer.log(message) + } +} diff --git a/packages/workflow/workflow-vm/tests/integration.spec.ts b/packages/workflow/workflow-vm/tests/integration.spec.ts new file mode 100644 index 0000000000..48b308a986 --- /dev/null +++ b/packages/workflow/workflow-vm/tests/integration.spec.ts @@ -0,0 +1,89 @@ +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import LlmService from '@deepseek-ai/dsh-llm' +import SessionStore from '@deepseek-ai/dsh-session' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import AgentRegistry, { AgentId } from '@deepseek-ai/dsh-agent' +import AgentLoop from '@deepseek-ai/dsh-agent-loop' +import * as Invariants from '@deepseek-ai/dsh-invariants' +import SubagentService from '@deepseek-ai/dsh-subagent' +import * as spawn from '@deepseek-ai/dsh-subagent-spawn' +import { STRUCTURED_OUTPUT_TOOL } from '@deepseek-ai/dsh-subagent-inprocess' +import { MockAdapter, textResponse, toolCallResponse } from '../../../core/agent-loop/tests/mock-adapter.ts' +import VmWorkflowEngine from '../src/index.ts' + +type Script = ConstructorParameters[0] + +/** + * The whole in-process stack, keyless: the vm engine drives the REAL spawn + * backend (with its structured runtime) on a real agent loop; the scripted + * mock MODEL is the only mocked boundary. This is the integration guard the + * per-hook unit tests (which stub the subagent seam) structurally cannot give. + */ +async function setup(script: Script) { + const ctx = new Context() + const adapter = new MockAdapter(script) + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(Invariants) + await ctx.plugin(AgentLoop, { agents: [] }) + await ctx.plugin(SubagentService) + await ctx.plugin(spawn, { providerName: 'spawn', structuredNudgeRetries: 1 }) + await ctx.plugin(VmWorkflowEngine, {}) + ctx.llm.registerAdapter(['mock'], adapter) + const parent = ctx.agentLoop.create(AgentId('parent'), { model: 'mock' }) + return { ctx, parent, adapter } +} + +describe('dsh-workflow-vm over the real in-process stack', () => { + it('runs a two-stage workflow: a plain child, then a schema child through the structured runtime', async () => { + const { ctx, parent } = await setup([ + textResponse('the file list is a.ts'), + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { verdict: 'real', confidence: 0.9 }), + ]) + const childIds: string[] = [] + ctx.on('workflow/agent-start', (_info, agent) => { childIds.push(agent.childId) }) + const run = ctx.workflows.start({ + script: `export const meta = { name: 'integration', description: 'plain + structured children' } +phase('Read') +const prose = await agent('read the repo') +phase('Judge') +const judged = await agent('judge: ' + prose, { + schema: { type: 'object', properties: { verdict: { type: 'string', enum: ['real', 'bogus'] }, confidence: { type: 'number' } }, required: ['verdict'] }, +}) +return { prose, verdict: judged.verdict, confidence: judged.confidence }`, + parent, + }) + const result = await run.result + expect(result.stopReason).toBe('completed') + expect(result.value).toEqual({ prose: 'the file list is a.ts', verdict: 'real', confidence: 0.9 }) + expect(result.agentsStarted).toBe(2) + await run.dispose() + // Both children were disposed to quiescence — no live child agents remain. + expect(childIds.length).toBe(2) + for (const childId of childIds) { + expect(ctx.agents.get(AgentId(childId))).toBeUndefined() + } + }) + + it('a child that fails against its schema (nudges exhausted) reaches the script as null', async () => { + const { ctx, parent } = await setup([ + textResponse('prose only'), + textResponse('still prose after the nudge'), + ]) + const run = ctx.workflows.start({ + script: `export const meta = { name: 'null-path', description: 'schema failure maps to null' } +const judged = await agent('judge it', { schema: { type: 'object', properties: { v: { type: 'string' } } } }) +return { got: judged === null ? 'null' : 'value' }`, + parent, + }) + const result = await run.result + expect(result.stopReason).toBe('completed') + expect(result.value).toEqual({ got: 'null' }) + await run.dispose() + }) +}) diff --git a/packages/workflow/workflow-vm/tests/meta.spec.ts b/packages/workflow/workflow-vm/tests/meta.spec.ts new file mode 100644 index 0000000000..4768da49ff --- /dev/null +++ b/packages/workflow/workflow-vm/tests/meta.spec.ts @@ -0,0 +1,143 @@ +import { describe, expect, it } from 'vitest' +import { WorkflowError } from '@deepseek-ai/dsh-workflow' +import { extractMeta } from '../src/meta.ts' + +const TIMEOUT = 1000 + +/** Extract and expect success. */ +function ok(script: string) { + return extractMeta(script, TIMEOUT) +} + +/** The WorkflowError a bad script produces (throws if it extracts cleanly). */ +function bad(script: string): WorkflowError { + try { + extractMeta(script, TIMEOUT) + } catch (error: unknown) { + if (error instanceof WorkflowError) return error + throw error + } + throw new Error('expected extraction to fail') +} + +describe('extractMeta', () => { + it('extracts a full meta block and blanks the statement line-preservingly', () => { + const script = `export const meta = { + name: 'audit-routes', + description: 'Audit every route', + whenToUse: 'when auditing', + phases: [{ title: 'Scan', detail: 'find files' }, { title: 'Fix', model: 'deepseek-v4-pro' }], +} +const x = 1 +return x` + const { meta, body } = ok(script) + expect(meta).toEqual({ + name: 'audit-routes', + description: 'Audit every route', + whenToUse: 'when auditing', + phases: [{ title: 'Scan', detail: 'find files' }, { title: 'Fix', model: 'deepseek-v4-pro' }], + }) + // Same line count; the statement's characters blanked; the body intact. + expect(body.split('\n').length).toBe(script.split('\n').length) + expect(body.split('\n')[6]).toBe('const x = 1') + expect(body).not.toContain('export') + }) + + it('allows leading line and block comments before the meta statement', () => { + const script = `// a workflow +/* multi + line */ +export const meta = { name: 'x', description: 'y' } +return 1` + expect(ok(script).meta.name).toBe('x') + }) + + it('handles braces inside strings and comments while scanning', () => { + const script = `export const meta = { + name: 'tricky', // } not a close { + /* } also not } */ + description: "has { braces } and 'quotes'", +} +return 2` + expect(ok(script).meta.description).toBe("has { braces } and 'quotes'") + }) + + it('tolerates template-quoted strings WITHOUT interpolation, escapes included', () => { + const script = 'export const meta = { name: `plain`, description: `esc \\` tick` }\nreturn 1' + expect(ok(script).meta.name).toBe('plain') + }) + + it('consumes a trailing semicolon after the literal, spaces included', () => { + const { body } = ok("export const meta = { name: 'x', description: 'y' };\nreturn 1") + expect(body).not.toContain(';') + expect(body.split('\n')[1]).toBe('return 1') + const spaced = ok("export const meta = { name: 'x', description: 'y' } ;\nreturn 1") + expect(spaced.body).not.toContain(';') + }) + + it('rejects a script that does not begin with the meta statement (SCRIPT_PARSE)', () => { + expect(bad('const a = 1').code).toBe('SCRIPT_PARSE') + expect(bad('').code).toBe('SCRIPT_PARSE') + expect(bad('export const meta = [1]').code).toBe('SCRIPT_PARSE') + }) + + it('rejects template interpolation in the meta block as impure (SCRIPT_PARSE)', () => { + const error = bad('export const meta = { name: `w-${1}`, description: "d" }\nreturn 1') + expect(error.code).toBe('SCRIPT_PARSE') + expect(error.message).toContain('pure literal') + }) + + it('rejects unbalanced literals, unterminated strings, and unterminated comments (SCRIPT_PARSE)', () => { + expect(bad('export const meta = { name: "x", description: "y"').code).toBe('SCRIPT_PARSE') + expect(bad('export const meta = { name: "x').code).toBe('SCRIPT_PARSE') + expect(bad('export const meta = { /* open').code).toBe('SCRIPT_PARSE') + // A line comment running to EOF (no newline) leaves the literal unbalanced. + expect(bad('export const meta = { name: "x" // eof comment').code).toBe('SCRIPT_PARSE') + }) + + it('rejects a literal referencing variables or calls (META_INVALID via the empty realm)', () => { + const error = bad('export const meta = { name: someVariable, description: "d" }\nreturn 1') + expect(error.code).toBe('META_INVALID') + expect(error.message).toContain('pure literal') + expect(bad('export const meta = { name: compute(), description: "d" }').code).toBe('META_INVALID') + }) + + it('rejects a literal evaluating to non-JSON data (META_INVALID via materialization)', () => { + const error = bad('export const meta = { name: "x", description: "d", phases: [{ get title() { return "t" } }] }') + expect(error.code).toBe('META_INVALID') + expect(error.message).toContain('JSON data') + }) + + it('rejects shape violations with EVERY violation listed (META_INVALID)', () => { + const error = bad('export const meta = { description: 7, bogus: 1 }\nreturn 1') + expect(error.code).toBe('META_INVALID') + expect(error.message).toContain('meta.name must be a non-empty string') + expect(error.message).toContain('meta.description must be a non-empty string') + expect(error.message).toContain('meta.bogus is not a recognized field') + }) + + it('rejects malformed whenToUse and phases shapes precisely', () => { + expect(bad('export const meta = { name: "x", description: "d", whenToUse: 3 }').message) + .toContain('meta.whenToUse must be a string') + expect(bad('export const meta = { name: "x", description: "d", phases: "no" }').message) + .toContain('meta.phases must be an array') + expect(bad('export const meta = { name: "x", description: "d", phases: [3] }').message) + .toContain('meta.phases[0] must be an object') + expect(bad('export const meta = { name: "x", description: "d", phases: [{}] }').message) + .toContain('meta.phases[0].title must be a non-empty string') + expect(bad('export const meta = { name: "x", description: "d", phases: [{ title: "t", extra: 1 }] }').message) + .toContain('meta.phases[0].extra is not a recognized field') + expect(bad('export const meta = { name: "x", description: "d", phases: [{ title: "t", detail: 1 }] }').message) + .toContain('meta.phases[0].detail must be a string') + expect(bad('export const meta = { name: "x", description: "d", phases: [{ title: "t", model: 1 }] }').message) + .toContain('meta.phases[0].model must be a string') + }) + + it('stops scanning at the balanced literal — trailing expression text stays in the body', () => { + // The scanner extracts exactly `{ valueOf: null }`; the ` && 3` is body + // text (which would fail compilation later, but extraction sees only the + // literal and reports its unknown field). + expect(bad('export const meta = { valueOf: null } && 3').message) + .toContain('meta.valueOf is not a recognized field') + }) +}) diff --git a/packages/workflow/workflow-vm/tests/realm.spec.ts b/packages/workflow/workflow-vm/tests/realm.spec.ts new file mode 100644 index 0000000000..f374706dba --- /dev/null +++ b/packages/workflow/workflow-vm/tests/realm.spec.ts @@ -0,0 +1,114 @@ +import { describe, expect, it } from 'vitest' +import * as vm from 'node:vm' +import { materializeFromRealm, MaterializeError } from '../src/realm.ts' + +/** Evaluate an expression inside a fresh vm realm and hand back the raw realm value. */ +function inRealm(expression: string): unknown { + return vm.runInNewContext(`(${expression})`) +} + +/** The MaterializeError message for a value that must be rejected (throws if accepted). */ +function rejection(value: unknown): string { + try { + materializeFromRealm(value) + } catch (error: unknown) { + if (error instanceof MaterializeError) return error.message + throw error + } + throw new Error('expected the value to be rejected') +} + +describe('materializeFromRealm', () => { + it('copies realm objects/arrays/scalars into host plain data', () => { + const value = inRealm("{ a: 1, b: 'x', c: true, d: null, list: [1, [2, { deep: 'y' }]] }") + const out = materializeFromRealm(value) as Record + expect(out).toEqual({ a: 1, b: 'x', c: true, d: null, list: [1, [2, { deep: 'y' }]] }) + // The copy is HOST data: prototypes are the host intrinsics. + expect(Object.getPrototypeOf(out)).toBe(Object.prototype) + expect(Array.isArray(out.list)).toBe(true) + // And it round-trips through JSON byte-identically (the whole point). + expect(JSON.parse(JSON.stringify(out))).toEqual(out) + }) + + it('accepts undefined ONLY at the root (a valueless script return)', () => { + expect(materializeFromRealm(undefined)).toBeUndefined() + expect(rejection(inRealm('{ a: undefined }'))).toContain('value.a') + }) + + it('never invokes accessors: a counting getter is rejected, not read', () => { + const counter = inRealm(` + (() => { + globalThis.reads = 0 + return { get x() { globalThis.reads += 1; return 1 } } + })() + `) + expect(rejection(counter)).toContain('accessor properties cannot cross') + // The getter body never ran — descriptor inspection only. + expect((counter as { x?: unknown }).x).toBe(1) // sanity: reading DOES run it… + expect(rejection(counter)).toContain('accessor') // …but materialization still never did + }) + + it('a "__proto__" key becomes an OWN data property of the copy, never a prototype mutation', () => { + const value: unknown = vm.runInNewContext('JSON.parse(\'{"__proto__": {"polluted": 1}, "ok": 2}\')') + const out = materializeFromRealm(value) as Record + expect(Object.getPrototypeOf(out)).toBe(Object.prototype) + expect(Object.prototype.hasOwnProperty.call(out, '__proto__')).toBe(true) + expect(out.ok).toBe(2) + // The host Object.prototype was NOT touched. + expect(({} as Record).polluted).toBeUndefined() + }) + + it('rejects functions, symbols (keys and values), and bigints with path-qualified messages', () => { + expect(rejection(inRealm('{ fn: () => 1 }'))).toContain('value.fn') + expect(rejection(inRealm("{ [Symbol('k')]: 1 }"))).toContain('symbol-keyed') + expect(rejection(inRealm("{ s: Symbol('v') }"))).toContain('value.s') + expect(rejection(inRealm('{ big: 1n }'))).toContain('value.big') + expect(rejection(inRealm("[Symbol('x')]"))).toContain('value[0]') + const taggedArray = inRealm("(() => { const a = [1]; a[Symbol('t')] = 1; return a })()") + expect(rejection(taggedArray)).toContain('symbol-keyed') + }) + + it('rejects non-finite numbers and undefined values inside containers', () => { + expect(rejection(inRealm('{ n: NaN }'))).toContain('non-finite') + expect(rejection(inRealm('[Infinity]'))).toContain('non-finite') + }) + + it('rejects exotic prototypes (Date, Map, class instances) but accepts null-prototype data', () => { + expect(rejection(inRealm('{ d: new Date(0) }'))).toContain('exotic prototype') + expect(rejection(inRealm('new Map()'))).toContain('exotic prototype') + expect(rejection(inRealm('(() => { class C { constructor() { this.x = 1 } } return new C() })()'))) + .toContain('exotic prototype') + expect(materializeFromRealm(inRealm('Object.assign(Object.create(null), { a: 1 })'))).toEqual({ a: 1 }) + }) + + it('rejects cycles and accepts the same object reused as a sibling (a DAG)', () => { + expect(rejection(inRealm('(() => { const o = {}; o.self = o; return o })()'))).toContain('circular') + const dag = inRealm('(() => { const leaf = { v: 1 }; return { a: leaf, b: leaf } })()') + expect(materializeFromRealm(dag)).toEqual({ a: { v: 1 }, b: { v: 1 } }) + }) + + it('rejects sparse arrays, accessor elements, and non-index array properties', () => { + expect(rejection(inRealm('[1, , 3]'))).toContain('sparse') + expect(rejection(inRealm('(() => { const a = [1]; Object.defineProperty(a, 0, { get: () => 1 }); return a })()'))) + .toContain('accessor') + expect(rejection(inRealm('(() => { const a = [1]; a.total = 3; return a })()'))) + .toContain('non-index') + }) + + it('skips non-enumerable own properties (matching JSON.stringify exactly)', () => { + const value = inRealm(`(() => { + const o = { visible: 1 } + Object.defineProperty(o, 'hidden', { value: () => 1, enumerable: false }) + return o + })()`) + expect(materializeFromRealm(value)).toEqual({ visible: 1 }) + }) + + it('works on plain host values too (the boundary is realm-agnostic)', () => { + expect(materializeFromRealm({ a: [1, 'x'] })).toEqual({ a: [1, 'x'] }) + expect(materializeFromRealm('str')).toBe('str') + expect(materializeFromRealm(3)).toBe(3) + expect(materializeFromRealm(false)).toBe(false) + expect(materializeFromRealm(null)).toBeNull() + }) +}) diff --git a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts new file mode 100644 index 0000000000..9403dc912e --- /dev/null +++ b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts @@ -0,0 +1,614 @@ +import { describe, expect, it, vi } from 'vitest' +import { Context } from 'cordis' +import Loader from '@cordisjs/plugin-loader' +import { AgentId } from '@deepseek-ai/dsh-agent' +import type { Agent } from '@deepseek-ai/dsh-agent' +import SubagentService from '@deepseek-ai/dsh-subagent' +import type { SubagentCapabilities, SubagentProvider, SubagentResult, SubagentRun, SubagentStartRequest } from '@deepseek-ai/dsh-subagent' +import type { WorkflowResult, WorkflowRunInfo } from '@deepseek-ai/dsh-workflow' +import * as vmEngineModule from '../src/index.ts' +import VmWorkflowEngine, { type Config } from '../src/index.ts' + +/** A minimal parent stand-in: the engine only threads it through to the provider. */ +function fakeParent(): Agent { + return { id: AgentId('workflow-parent'), options: {} } as unknown as Agent +} + +/** One controllable child run: the test (or auto mode) settles it. */ +interface ControlledRun { + request: SubagentStartRequest + settle(result: SubagentResult): void + cancelled: string | undefined + disposed: boolean +} + +/** + * A scripted in-test provider over the REAL SubagentService registry: `auto` + * settles each run via the reply function on a microtask; `manual` piles runs + * up in `runs` for the test to settle (concurrency/cancellation tests). A run + * aborts (settles `aborted`) when the request signal fires, like the real + * in-process backends. + */ +class StubProvider implements SubagentProvider { + readonly capabilities: SubagentCapabilities = { outputSchema: true, depthLimit: true, toolFilter: true } + readonly runs: ControlledRun[] = [] + + constructor( + readonly name: string, + private readonly reply?: (request: SubagentStartRequest, index: number) => SubagentResult, + ) {} + + start(request: SubagentStartRequest): SubagentRun { + let settle!: (result: SubagentResult) => void + const result = new Promise((resolve) => { settle = resolve }) + const controlled: ControlledRun = { request, settle, cancelled: undefined, disposed: false } + this.runs.push(controlled) + const index = this.runs.length - 1 + request.signal?.addEventListener('abort', () => { settle({ output: [], stopReason: 'aborted' }) }, { once: true }) + if (this.reply) { + const reply = this.reply + queueMicrotask(() => { settle(reply(request, index)) }) + } + return { + id: AgentId(`stub-child-${index}`), + result, + cancel: (reason?: string) => { + controlled.cancelled = reason ?? 'cancelled' + settle({ output: [], stopReason: 'aborted' }) + }, + dispose: () => { + controlled.disposed = true + return Promise.resolve() + }, + } + } +} + +/** Text-reply helper for auto providers. */ +function text(reply: string): SubagentResult { + return { output: [{ type: 'text', text: reply }], stopReason: 'completed' } +} + +interface SetupOptions { + config?: Config + reply?: (request: SubagentStartRequest, index: number) => SubagentResult + manual?: boolean +} + +async function setup(options?: SetupOptions) { + const ctx = new Context() + await ctx.plugin(SubagentService) + const provider = new StubProvider('stub', options?.manual ? undefined : options?.reply ?? (() => text('stub reply'))) + ctx.subagents.registerProvider(provider) + await ctx.plugin(VmWorkflowEngine, { provider: 'stub', ...options?.config }) + return { ctx, provider, parent: fakeParent() } +} + +/** Wrap a body in the minimal valid meta header. */ +function script(body: string, metaExtra = ''): string { + return `export const meta = { name: 'test-flow', description: 'a test workflow'${metaExtra} }\n${body}` +} + +/** Start + await one run, disposing on the way out. */ +async function run(ctx: Context, parent: Agent, source: string, args?: unknown): Promise { + const handle = ctx.workflows.start({ script: source, parent, ...args !== undefined ? { args } : {} }) + try { + return await handle.result + } finally { + await handle.dispose() + } +} + +describe('dsh-workflow-vm', () => { + describe('script execution', () => { + it('runs a script end-to-end: agent() text results, phases, log, args, return value', async () => { + const { ctx, parent, provider } = await setup({ reply: (_request, index) => text(`answer-${index}`) }) + const events: [string, unknown[]][] = [] + for (const name of ['workflow/start', 'workflow/phase', 'workflow/log', 'workflow/agent-start', 'workflow/agent-end', 'workflow/end'] as const) { + ctx.on(name, (...payload: unknown[]) => { events.push([name, payload]) }) + } + const result = await run(ctx, parent, script(` + phase('Scan') + log('starting with ' + args.files.length + ' files') + const answers = await pipeline(args.files, (prev, item) => agent('read ' + item)) + phase('Report') + return { answers, count: args.files.length } + `, ", phases: [{ title: 'Scan' }, { title: 'Report' }]"), { files: ['a.ts', 'b.ts'] }) + + expect(result.stopReason).toBe('completed') + expect(result.agentsStarted).toBe(2) + expect(result.value).toEqual({ answers: ['answer-0', 'answer-1'], count: 2 }) + expect(provider.runs.every(r => r.disposed)).toBe(true) + + const names = events.map(([name]) => name) + expect(names[0]).toBe('workflow/start') + expect(names).toContain('workflow/phase') + expect(names).toContain('workflow/log') + expect(names.at(-1)).toBe('workflow/end') + const info = events[0]![1][0] as WorkflowRunInfo + expect(info.meta.name).toBe('test-flow') + const end = events.at(-1)![1][1] as Record + expect(end).toEqual({ stopReason: 'completed', agentsStarted: 2 }) + expect('value' in end).toBe(false) + }) + + it('agent-start/end events carry seq, label (defaulted from the prompt), phase, and outcome', async () => { + const { ctx, parent } = await setup() + const starts: unknown[] = [] + const ends: unknown[] = [] + ctx.on('workflow/agent-start', (_info, agent) => starts.push(agent)) + ctx.on('workflow/agent-end', (_info, agent) => ends.push(agent)) + await run(ctx, parent, script(` + phase('Find') + await agent('a prompt that is quite long and will surely get truncated down to a display label\\n' + + 'with a second line the label must not include') + await agent('short', { label: 'named', phase: 'Custom' }) + return null + `)) + expect(starts[0]).toMatchObject({ seq: 1, phase: 'Find', childId: 'stub-child-0' }) + expect((starts[0] as { label: string }).label.length).toBeLessThanOrEqual(48) + expect((starts[0] as { label: string }).label).not.toContain('second line') + expect(starts[1]).toMatchObject({ seq: 2, label: 'named', phase: 'Custom' }) + expect(ends[0]).toMatchObject({ seq: 1, outcome: 'completed' }) + }) + + it('agent({schema}) forwards outputSchema to the provider and returns the structured value into the realm', async () => { + const { ctx, parent, provider } = await setup({ + reply: () => ({ output: [], structured: { files: ['x.ts', 'y.ts'] }, stopReason: 'completed' }), + }) + const result = await run(ctx, parent, script(` + const found = await agent('list files', { schema: { type: 'object', properties: { files: { type: 'array', items: { type: 'string' } } }, required: ['files'] } }) + return { first: found.files[0], count: found.files.length } + `)) + expect(result.value).toEqual({ first: 'x.ts', count: 2 }) + expect(provider.runs[0]!.request.outputSchema).toEqual({ + type: 'object', + properties: { files: { type: 'array', items: { type: 'string' } } }, + required: ['files'], + }) + }) + + it('model option maps to agentOptions.model on the start request', async () => { + const { ctx, parent, provider } = await setup() + await run(ctx, parent, script("return await agent('p', { model: 'deepseek-v4-pro' })")) + expect(provider.runs[0]!.request.agentOptions).toEqual({ model: 'deepseek-v4-pro' }) + }) + + it('a failed child resolves null (scripts filter), never throwing into the script', async () => { + const { ctx, parent } = await setup({ + reply: (_request, index) => index === 0 ? { output: [], stopReason: 'error' } : text('ok'), + }) + const result = await run(ctx, parent, script(` + const results = await parallel([() => agent('one'), () => agent('two')]) + return results + `)) + expect(result.value).toEqual([null, 'ok']) + }) + + it('a schema run that completes WITHOUT a structured value is a child failure (null + failed outcome)', async () => { + const { ctx, parent } = await setup({ reply: () => text('prose, no structure') }) + const ends: unknown[] = [] + ctx.on('workflow/agent-end', (_info, agent) => ends.push(agent)) + const result = await run(ctx, parent, script(` + return await agent('p', { schema: { type: 'object' } }) + `)) + expect(result.value).toBeNull() + expect(ends[0]).toMatchObject({ outcome: 'failed' }) + }) + + it('a script with no return value resolves value: null', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script("await agent('p')")) + expect(result.stopReason).toBe('completed') + expect(result.value).toBeNull() + }) + }) + + describe('combinator semantics', () => { + it('pipeline has NO cross-stage barrier: a fast item finishes stage 2 while a slow item holds stage 1', async () => { + const { ctx, parent, provider } = await setup({ manual: true }) + const handle = ctx.workflows.start({ + script: script(` + const out = await pipeline(['slow', 'fast'], + (prev, item) => agent('s1 ' + item), + (prev, item) => agent('s2 ' + item + ' after ' + prev), + ) + return out + `), + parent: fakeParent(), + }) + // Both items enter stage 1 concurrently. + await vi.waitFor(() => { expect(provider.runs.length).toBe(2) }) + // Settle only the FAST item's stage 1 → its stage 2 starts with no barrier. + provider.runs[1]!.settle(text('fast-1')) + await vi.waitFor(() => { expect(provider.runs.length).toBe(3) }) + expect((provider.runs[2]!.request.prompt[0] as { text: string }).text).toBe('s2 fast after fast-1') + // The slow item is still sitting in stage 1. + provider.runs[2]!.settle(text('fast-2')) + provider.runs[0]!.settle(text('slow-1')) + await vi.waitFor(() => { expect(provider.runs.length).toBe(4) }) + provider.runs[3]!.settle(text('slow-2')) + const result = await handle.result + expect(result.value).toEqual(['slow-2', 'fast-2']) + await handle.dispose() + void parent + }) + + it('pipeline stage callbacks receive (prev, item, index); an ordinary stage throw nulls the ITEM and skips its remaining stages', async () => { + const { ctx, parent, provider } = await setup({ reply: request => text(`ok:${(request.prompt[0] as { text: string }).text}`) }) + const result = await run(ctx, parent, script(` + const out = await pipeline([10, 20], + (prev, item, index) => { + if (item === 10) throw new Error('ordinary failure') + return agent('stage1-' + item + '-' + index) + }, + (prev) => agent('stage2 saw ' + prev), + ) + return out + `)) + expect(result.stopReason).toBe('completed') + const prompts = provider.runs.map(r => (r.request.prompt[0] as { text: string }).text) + // Item 10 never reached stage 1's agent nor stage 2. + expect(prompts).toEqual(['stage1-20-1', 'stage2 saw ok:stage1-20-1']) + expect(result.value).toEqual([null, 'ok:stage2 saw ok:stage1-20-1']) + }) + + it('parallel maps a throwing thunk to null and never rejects for ordinary errors', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script(` + return await parallel([ + () => { throw new Error('boom') }, + () => agent('fine'), + () => 'plain value', + ]) + `)) + expect(result.value).toEqual([null, 'stub reply', 'plain value']) + }) + + it('FATAL errors propagate through parallel AND pipeline instead of dissolving into null', async () => { + const { ctx, parent } = await setup() + const viaParallel = await run(ctx, parent, script(` + return await parallel([() => agent('x', { isolation: 'worktree' })]) + `)) + expect(viaParallel.stopReason).toBe('error') + expect(viaParallel.error).toContain('"isolation" is deferred') + + const viaPipeline = await run(ctx, parent, script(` + return await pipeline([1], () => agent('x', { bogus: true })) + `)) + expect(viaPipeline.stopReason).toBe('error') + expect(viaPipeline.error).toContain('"bogus" is not recognized') + }) + + it('validates combinator arguments loudly (non-array, non-function, missing stages)', async () => { + const { ctx, parent } = await setup() + expect((await run(ctx, parent, script("return await parallel('no')"))).error).toContain('parallel() requires an array') + expect((await run(ctx, parent, script('return await parallel([3])'))).error).toContain('item 0 is not a function') + expect((await run(ctx, parent, script("return await pipeline('no', () => 1)"))).error).toContain('pipeline() requires an items array') + expect((await run(ctx, parent, script('return await pipeline([1])'))).error).toContain('at least one stage') + expect((await run(ctx, parent, script("return await pipeline([1], 'x')"))).error).toContain('stage 0 is not a function') + }) + }) + + describe('caps and option validation', () => { + it('trips the total-agent cap with a message naming the config knob', async () => { + const { ctx, parent } = await setup({ config: { provider: 'stub', maxTotalAgents: 2 } }) + const result = await run(ctx, parent, script(` + await agent('1'); await agent('2'); await agent('3') + return 'unreachable' + `)) + expect(result.stopReason).toBe('error') + expect(result.error).toContain('total agent cap (2)') + expect(result.error).toContain('maxTotalAgents') + expect(result.agentsStarted).toBe(2) + }) + + it('trips the per-call item cap for parallel and pipeline', async () => { + const { ctx, parent } = await setup({ config: { provider: 'stub', maxItemsPerCall: 2 } }) + expect((await run(ctx, parent, script('return await parallel([() => 1, () => 2, () => 3])'))).error) + .toContain('over the per-call cap (2)') + expect((await run(ctx, parent, script('return await pipeline([1, 2, 3], (x) => x)'))).error) + .toContain('maxItemsPerCall') + }) + + it('enforces the concurrency ceiling: never more than maxConcurrentAgents children in flight', async () => { + const { ctx, parent, provider } = await setup({ manual: true, config: { provider: 'stub', maxConcurrentAgents: 2 } }) + const handle = ctx.workflows.start({ + script: script("return await parallel([1, 2, 3, 4, 5].map((n) => () => agent('job ' + n)))"), + parent, + }) + // Only 2 children may exist until one settles. + await vi.waitFor(() => { expect(provider.runs.length).toBe(2) }) + await new Promise(resolve => setTimeout(resolve, 20)) + expect(provider.runs.length).toBe(2) + // Settle children in arrival order; after each settle at most ONE more + // child may enter — the window never exceeds the ceiling. + for (let index = 0; index < 5; index++) { + await vi.waitFor(() => { expect(provider.runs.length).toBeGreaterThan(index) }) + expect(provider.runs.length).toBeLessThanOrEqual(Math.min(index + 2, 5)) + provider.runs[index]!.settle(text(`r${index}`)) + } + const result = await handle.result + expect(result.stopReason).toBe('completed') + expect(result.agentsStarted).toBe(5) + expect(result.value).toEqual(['r0', 'r1', 'r2', 'r3', 'r4']) + await handle.dispose() + }) + + it('rejects malformed agent() arguments and option types loudly', async () => { + const { ctx, parent } = await setup() + expect((await run(ctx, parent, script('return await agent(42)'))).error).toContain('non-empty prompt string') + expect((await run(ctx, parent, script("return await agent('')"))).error).toContain('non-empty prompt string') + expect((await run(ctx, parent, script("return await agent('p', 'opts')"))).error).toContain('options must be an object') + expect((await run(ctx, parent, script("return await agent('p', { label: 3 })"))).error).toContain('"label" must be a string') + expect((await run(ctx, parent, script("return await agent('p', { effort: 'high' })"))).error).toContain('"effort" is deferred') + }) + + it('rejects options that are not plain JSON data (an accessor smuggled into opts)', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script("return await agent('p', { get label() { return 'x' } })")) + expect(result.stopReason).toBe('error') + expect(result.error).toContain('options must be plain JSON data') + }) + + it('validates phase() and log() arguments loudly', async () => { + const { ctx, parent } = await setup() + expect((await run(ctx, parent, script('phase(3)'))).error).toContain('phase() requires a non-empty title string') + expect((await run(ctx, parent, script("phase('')"))).error).toContain('phase() requires a non-empty title string') + expect((await run(ctx, parent, script('log(3)'))).error).toContain('log() requires a message string') + }) + + it('rejects an unsupported schema via the shared subset assertion (UNSUPPORTED_SCHEMA)', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script("return await agent('p', { schema: { type: 'object', oneOf: [] } })")) + expect(result.stopReason).toBe('error') + expect(result.error).toContain('outside the supported subset') + expect(result.error).toContain('oneOf') + }) + + it('wraps a provider start failure as a fatal AGENT_START error (a missing provider cannot dissolve into null)', async () => { + const { ctx, parent } = await setup({ config: { provider: 'nonexistent' } }) + const result = await run(ctx, parent, script("return await pipeline([1], () => agent('p'))")) + expect(result.stopReason).toBe('error') + expect(result.error).toContain('could not start a child on provider "nonexistent"') + }) + }) + + describe('determinism bans and realm isolation', () => { + it('Date.now, Math.random, and argless new Date throw; parameterized Date stays usable', async () => { + const { ctx, parent } = await setup() + expect((await run(ctx, parent, script('return Date.now()'))).error).toContain('Date.now() is not available') + expect((await run(ctx, parent, script('return Math.random()'))).error).toContain('Math.random() is not available') + expect((await run(ctx, parent, script('return new Date().toISOString()'))).error).toContain('argless new Date()') + const ok = await run(ctx, parent, script('return new Date(0).getTime()')) + expect(ok.value).toBe(0) + }) + + it('args cross into the realm as data: mutating them (or their prototype chain) cannot reach host intrinsics', async () => { + const { ctx, parent } = await setup() + const hostArgs = { files: ['a.ts'], nested: { deep: [1, 2] } } + const result = await run(ctx, parent, script(` + args.files.push('b.ts') + Object.getPrototypeOf(args).polluted = 'realm-only' + return { count: args.files.length, deep: args.nested.deep[1] } + `), hostArgs) + expect(result.value).toEqual({ count: 2, deep: 2 }) + // The host copy is untouched, and the HOST Object.prototype was never reachable. + expect(hostArgs.files).toEqual(['a.ts']) + expect(({} as Record).polluted).toBeUndefined() + }) + + it('scalar/null args pass through directly; absent args leave the global undefined', async () => { + const { ctx, parent } = await setup() + expect((await run(ctx, parent, script('return args * 2'), 21)).value).toBe(42) + expect((await run(ctx, parent, script('return args === null'), null)).value).toBe(true) + expect((await run(ctx, parent, script('return typeof args'))).value).toBe('undefined') + }) + + it('a non-JSON return value fails loud as RESULT_UNSERIALIZABLE', async () => { + const { ctx, parent } = await setup() + const withDate = await run(ctx, parent, script('return { when: new Date(0) }')) + expect(withDate.stopReason).toBe('error') + expect(withDate.error).toContain('not plain JSON data') + const withFn = await run(ctx, parent, script('return { fn: () => 1 }')) + expect(withFn.error).toContain('not plain JSON data') + }) + + it('kills a synchronous spin in the initial slice via the vm timeout', async () => { + const { ctx, parent } = await setup({ config: { provider: 'stub', syncTimeoutMs: 50 } }) + const result = await run(ctx, parent, script('while (true) {}')) + expect(result.stopReason).toBe('error') + expect(result.error?.toLowerCase()).toContain('timed out') + }) + }) + + describe('lifecycle: parse errors, cancellation, disposal', () => { + it('start() throws synchronously for an unparseable script or invalid meta', async () => { + const { ctx, parent } = await setup() + expect(() => ctx.workflows.start({ script: 'const x = 1', parent })).toThrow(/must begin with/) + expect(() => ctx.workflows.start({ script: script('return ((('), parent })).toThrow(/does not parse/) + }) + + it('cancel() aborts in-flight children and settles the run cancelled', async () => { + const { ctx, parent, provider } = await setup({ manual: true }) + const handle = ctx.workflows.start({ script: script("return await agent('long job')"), parent }) + await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + handle.cancel('user stopped it') + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + expect(result.error).toContain('user stopped it') + expect(provider.runs[0]!.disposed).toBe(true) + await handle.dispose() + }) + + it('an already-aborted request signal cancels before any child starts', async () => { + const { ctx, parent, provider } = await setup({ manual: true }) + const controller = new AbortController() + controller.abort() + const handle = ctx.workflows.start({ script: script("return await agent('never')"), parent, signal: controller.signal }) + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + expect(provider.runs.length).toBe(0) + await handle.dispose() + }) + + it('the signal aborting mid-run cancels like cancel()', async () => { + const { ctx, parent, provider } = await setup({ manual: true }) + const controller = new AbortController() + const handle = ctx.workflows.start({ script: script("return await agent('job')"), parent, signal: controller.signal }) + await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + controller.abort() + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + await handle.dispose() + }) + + it('reports a non-Error script throw (a thrown string) faithfully', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script("throw 'plain string failure'")) + expect(result.stopReason).toBe('error') + expect(result.error).toContain('plain string failure') + }) + + it('a script Error surfaces its stack, carrying the script line numbers (lineOffset)', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script("throw new Error('with stack')")) + expect(result.stopReason).toBe('error') + // Line 1 is the blanked meta statement; the throw sits on line 2. + expect(result.error).toContain('workflow:test-flow:2') + }) + + it('an object throw with neither stack nor message stringifies', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script('throw { code: 42 }')) + expect(result.stopReason).toBe('error') + expect(result.error).toBe('[object Object]') + }) + + it('falls back to the message for an Error whose stack was stripped', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script(` + const e = new Error('stackless failure') + e.stack = undefined + throw e + `)) + expect(result.stopReason).toBe('error') + expect(result.error).toBe('stackless failure') + }) + + it('a waiter resumed by a release RACING a cancel still dies at the post-acquire check', async () => { + const { ctx, parent, provider } = await setup({ manual: true, config: { provider: 'stub', maxConcurrentAgents: 1 } }) + const handle = ctx.workflows.start({ + script: script("return await parallel([() => agent('a'), () => agent('b')])"), + parent, + }) + await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + // Same synchronous block: the release resolves b's waiter, then the + // cancel lands BEFORE b's continuation runs — b must not start a child. + provider.runs[0]!.settle(text('a-done')) + handle.cancel('raced') + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + expect(provider.runs.length).toBe(1) + await handle.dispose() + }) + + it('a dropped agent() promise cannot become an unhandled rejection when cancellation lands', async () => { + const unhandled: unknown[] = [] + const onUnhandled = (reason: unknown): void => { unhandled.push(reason) } + process.on('unhandledRejection', onUnhandled) + try { + const { ctx, parent, provider } = await setup({ manual: true }) + const handle = ctx.workflows.start({ + script: script(` + agent('dropped, never awaited') + return await agent('awaited') + `), + parent, + }) + await vi.waitFor(() => { expect(provider.runs.length).toBe(2) }) + handle.cancel() + await handle.result + await handle.dispose() + // Let any stray rejection reach the process hook before asserting. + await new Promise(resolve => setTimeout(resolve, 20)) + expect(unhandled).toEqual([]) + } finally { + process.off('unhandledRejection', onUnhandled) + } + }) + + it('dispose() abandons a stuck script after the grace instead of hanging (result stays pending)', async () => { + const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: 30 } }) + const handle = ctx.workflows.start({ + // No hooks involved: an unsettleable await the engine cannot reject. + script: script("await new Promise(() => {})\nreturn 'unreachable'"), + parent, + }) + const before = Date.now() + await handle.dispose() + expect(Date.now() - before).toBeLessThan(1000) + const settled = await Promise.race([handle.result.then(() => 'settled'), Promise.resolve('pending')]) + expect(settled).toBe('pending') + }) + + it('dispose() is idempotent and settles cleanly after a completed run', async () => { + const { ctx, parent } = await setup() + const handle = ctx.workflows.start({ script: script('return 1'), parent }) + await handle.result + await handle.dispose() + await handle.dispose() + }) + + it('strays: children fired without await are aborted once the script settles', async () => { + const { ctx, parent, provider } = await setup({ manual: true }) + const handle = ctx.workflows.start({ + script: script(` + agent('stray') + return 'done without awaiting' + `), + parent, + }) + const result = await handle.result + expect(result.stopReason).toBe('completed') + await vi.waitFor(() => { + expect(provider.runs.length).toBe(1) + expect(provider.runs[0]!.disposed).toBe(true) + }) + await handle.dispose() + }) + }) + + describe('service surface', () => { + it('run ids are unique per start; the run handle and event payloads hold SEPARATE meta clones', async () => { + const { ctx, parent } = await setup() + let eventMeta: WorkflowRunInfo | undefined + ctx.on('workflow/start', (info) => { eventMeta = info }) + const first = ctx.workflows.start({ script: script('return 1'), parent }) + const second = ctx.workflows.start({ script: script('return 2'), parent }) + expect(first.id).not.toBe(second.id) + // Mutating a listener's snapshot cannot corrupt the holder's view. + eventMeta!.meta.name = 'corrupted' + expect(second.meta.name).toBe('test-flow') + await Promise.all([first.result, second.result]) + await first.dispose() + await second.dispose() + }) + + it('unregisters ctx.workflows when the engine fiber is disposed (HMR safety)', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const fiber = await ctx.plugin(VmWorkflowEngine, {}) + expect(ctx.get('workflows')).toBeDefined() + await fiber.dispose() + expect(ctx.get('workflows')).toBeUndefined() + }) + + it('has the class-plugin export shape (default = the engine service class)', () => { + expect(vmEngineModule.default).toBe(VmWorkflowEngine) + const loader = Object.create(Loader.prototype) as Loader + const unwrapped: unknown = loader.unwrapExports(vmEngineModule) + expect(unwrapped).toBe(VmWorkflowEngine) + }) + }) +}) diff --git a/packages/workflow/workflow-vm/tests/workflow.e2e.ts b/packages/workflow/workflow-vm/tests/workflow.e2e.ts new file mode 100644 index 0000000000..6ddfdb7251 --- /dev/null +++ b/packages/workflow/workflow-vm/tests/workflow.e2e.ts @@ -0,0 +1,131 @@ +import { afterEach, describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import LlmService from '@deepseek-ai/dsh-llm' +import SessionStore from '@deepseek-ai/dsh-session' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import AgentRegistry, { AgentId } from '@deepseek-ai/dsh-agent' +import AgentLoop from '@deepseek-ai/dsh-agent-loop' +import * as LlmDeepSeek from '@deepseek-ai/dsh-llm-deepseek' +import SubagentService from '@deepseek-ai/dsh-subagent' +import * as Spawn from '@deepseek-ai/dsh-subagent-spawn' +import * as ToolWorkflow from '@deepseek-ai/dsh-tool-workflow' +import { CallId } from '@deepseek-ai/dsh-llm' +import VmWorkflowEngine from '../src/index.ts' + +/** + * With-key e2e for the workflow engine: a REAL script drives REAL spawn + * children against the live DeepSeek API — one plain child and one schema'd + * child through the real structured-output runtime — and the run's value, + * events, and child sessions are asserted from the outside (never the + * script's self-report alone). Key-gated (self-skips without + * DEEPSEEK_API_KEY). + */ + +let ctx: Context | undefined + +afterEach(async () => { + await ctx?.fiber.dispose() + ctx = undefined +}) + +async function harness(): Promise { + const built = new Context() + await built.plugin(LlmService) + await built.plugin(SessionStore) + await built.plugin(SystemPrompt) + await built.plugin(ToolRegistry) + await built.plugin(AgentRegistry) + await built.plugin(AgentLoop, { agents: [] }) + await built.plugin(LlmDeepSeek, { models: ['deepseek-v4-flash'] }) + await built.plugin(SubagentService) + await built.plugin(Spawn, { providerName: 'spawn', structuredNudgeRetries: 1 }) + await built.plugin(VmWorkflowEngine, { provider: 'spawn' }) + await built.plugin(ToolWorkflow, {}) + return built +} + +const SCRIPT = `export const meta = { + name: 'e2e-arithmetic', + description: 'two real children: one prose, one structured', + phases: [{ title: 'Ask' }, { title: 'Judge' }], +} +phase('Ask') +log('asking the prose child') +const prose = await agent('Reply with exactly one short sentence: what is 2 + 2?') +phase('Judge') +const judged = await agent( + 'Here is an answer to the question "what is 2+2": ' + prose + + ' — report whether it contains the number 4 and your confidence between 0 and 1.', + { schema: { type: 'object', properties: { containsFour: { type: 'boolean' }, confidence: { type: 'number' } }, required: ['containsFour'] } }, +) +return { prose, containsFour: judged === null ? null : judged.containsFour }` + +describe.skipIf(!process.env.DEEPSEEK_API_KEY)('workflow engine with-key e2e', () => { + it('runs a two-phase script over real children, one through the structured runtime', async () => { + ctx = await harness() + const parentHandle = ctx.agents.create({ + agentId: AgentId('wf-e2e-parent'), + sessionId: 'wf-e2e-session' as never, + agentOptions: { model: 'deepseek-v4-flash' }, + }) + + const events: string[] = [] + const childIds: string[] = [] + for (const name of ['workflow/start', 'workflow/phase', 'workflow/log', 'workflow/agent-start', 'workflow/agent-end', 'workflow/end'] as const) { + ctx.on(name, (...payload: unknown[]) => { + events.push(name) + if (name === 'workflow/agent-start') childIds.push((payload[1] as { childId: string }).childId) + }) + } + + const run = ctx.workflows.start({ script: SCRIPT, parent: parentHandle.agent }) + const result = await run.result + await run.dispose() + + expect(result.stopReason).toBe('completed') + expect(result.agentsStarted).toBe(2) + const value = result.value as { prose: string; containsFour: boolean | null } + // World checks: the prose child really answered (a real completion), and + // the structured child judged it against the REAL schema-forced tool. + expect(value.prose.length).toBeGreaterThan(0) + expect(value.containsFour).toBe(true) + + expect(events[0]).toBe('workflow/start') + expect(events.at(-1)).toBe('workflow/end') + expect(events.filter(name => name === 'workflow/phase').length).toBe(2) + expect(events.filter(name => name === 'workflow/agent-start').length).toBe(2) + expect(childIds.length).toBe(2) + // The children were disposed to quiescence after collection. + for (const childId of childIds) { + expect(ctx.agents.get(AgentId(childId))).toBeUndefined() + } + await parentHandle.dispose() + }, 240_000) + + it('the workflow TOOL runs the same path through the real registry pipeline', async () => { + ctx = await harness() + const parentHandle = ctx.agents.create({ + agentId: AgentId('wf-e2e-tool-parent'), + sessionId: 'wf-e2e-tool-session' as never, + agentOptions: { model: 'deepseek-v4-flash' }, + }) + + const result = await ctx.tools.execute({ + callId: CallId('wf-e2e-call'), + name: 'workflow', + arguments: { + script: `export const meta = { name: 'e2e-tool', description: 'one real child via the tool' } +const answer = await agent('Reply with exactly one word: the capital of France.') +return { answer }`, + }, + agent: parentHandle.agent, + }) + + expect(result.isError).toBe(false) + const text = (result.content[0] as { text: string }).text + expect(text).toContain('workflow "e2e-tool" completed (1 agent)') + expect(text.toLowerCase()).toContain('paris') + await parentHandle.dispose() + }, 240_000) +}) diff --git a/packages/workflow/workflow-vm/tsconfig.json b/packages/workflow/workflow-vm/tsconfig.json new file mode 100644 index 0000000000..385651c192 --- /dev/null +++ b/packages/workflow/workflow-vm/tsconfig.json @@ -0,0 +1,39 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../../vendor/schemastery" + }, + { + "path": "../../core/agent" + }, + { + "path": "../../util/brand" + }, + { + "path": "../../llm/llm" + }, + { + "path": "../../subagent/subagent" + }, + { + "path": "../../core/tools" + }, + { + "path": "../workflow" + } + ] +} diff --git a/packages/workflow/workflow/README.md b/packages/workflow/workflow/README.md new file mode 100644 index 0000000000..1dece68d38 --- /dev/null +++ b/packages/workflow/workflow/README.md @@ -0,0 +1,29 @@ +# @deepseek-ai/dsh-workflow + +The **workflow seam** (`ctx.workflows`): an abstract service defining WHAT a workflow engine does — execute a model-written orchestration script that fans out subagents — without saying HOW. The bash-shaped third of the [workflow family](../README.md): implementations subclass `WorkflowService` and register as the `workflows` service (one per context); [`dsh-workflow-vm`](../workflow-vm/README.md) is the first, and [`dsh-tool-workflow`](../tool-workflow/README.md) is the model-facing consumer. + +## Service: `WorkflowService` (abstract) + +`start(request: WorkflowStartRequest): WorkflowRun` — parse and execute a script. Throws synchronously (`SCRIPT_PARSE`/`META_INVALID`) for a script that cannot begin; once a run is returned, its `result` NEVER rejects — every failure resolves with `stopReason: 'error'` (or `'cancelled'`). `dispose()` must reach quiescence within a bounded grace (cancel → wait → abandon), never hanging its caller. + +The protected `emitWorkflowEvent` helper dispatches the `workflow/*` events with PER-LISTENER containment (a throwing subscriber is logged, never propagated, and cannot starve later listeners) — the same guarantee as the subagent seam's lifecycle emits. + +## Vocabulary + +- `WorkflowStartRequest` — `{ script, args?, parent: Agent, signal? }`. `parent` is REQUIRED: every child the script spawns is attributed to it. `args` must be plain host-realm JSON data. +- `WorkflowMeta` / `WorkflowPhase` — the script's validated `export const meta` block (Claude Code format: required `name`/`description`, optional `whenToUse`/`phases`). +- `WorkflowRun` — `{ id, meta, result, cancel(reason?), dispose() }`; the consumer awaits `result` and MUST `dispose` on every path. +- `WorkflowResult` — `{ value, stopReason: 'completed'|'cancelled'|'error', error?, agentsStarted }`; `value` is the script's materialized return (plain JSON data; `null` for no return). +- `WorkflowError` — `HarnessError` with a `WorkflowErrorCode` and a `fatal` flag driving the combinator discipline: a fatal error (bad hook arguments, unsupported options/schemas, tripped caps, seam start failures, cancellation) always propagates through `parallel()`/`pipeline()` instead of dissolving into a per-item `null`. `isFatalWorkflowError(error)` is the catch-site predicate. + +## Events + +All observe-only emits carrying DATA SNAPSHOTS (`WorkflowRunInfo` = id + meta) — never the live `WorkflowRun`, so a listener cannot gain `cancel`/`dispose`; control stays with the `start()` caller: + +- `workflow/start`(info) / `workflow/end`(info, resultInfo) — run lifecycle; `resultInfo` deliberately omits the value. +- `workflow/phase`(info, title) / `workflow/log`(info, message) — script narration. +- `workflow/agent-start`(info, agent) / `workflow/agent-end`(info, agent + outcome) — one pair per `agent()` call, correlated by `seq`. + +## Non-goals (this cut) + +Background collection, journaling/resume, saved workflows, nested `workflow()`, token budgets — see the [RFC's deferred section](../../../docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md). diff --git a/packages/workflow/workflow/package.json b/packages/workflow/workflow/package.json new file mode 100644 index 0000000000..a6c004d6d0 --- /dev/null +++ b/packages/workflow/workflow/package.json @@ -0,0 +1,37 @@ +{ + "name": "@deepseek-ai/dsh-workflow", + "description": "Workflow capability seam: ctx.workflows service, run vocabulary, and workflow/* events", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-agent": "^0.0.1", + "@deepseek-ai/dsh-brand": "^0.0.1", + "@deepseek-ai/dsh-llm": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "devDependencies": { + "@deepseek-ai/dsh-agent": "workspace:^", + "@deepseek-ai/dsh-brand": "workspace:^", + "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-session": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/workflow/workflow/src/index.ts b/packages/workflow/workflow/src/index.ts new file mode 100644 index 0000000000..ab5e056b37 --- /dev/null +++ b/packages/workflow/workflow/src/index.ts @@ -0,0 +1,224 @@ +/** + * The workflow capability seam (`ctx.workflows`): an abstract service defining + * WHAT a workflow engine does — execute a model-written orchestration script + * that fans out subagents — without saying HOW. Implementations subclass + * {@link WorkflowService} and register as the `workflows` service (one + * implementation per context, cordis' standard duplicate-service behavior); + * `@deepseek-ai/dsh-workflow-vm` (an in-process `node:vm` engine) is the + * first. Future engines (a worker-thread or isolated-vm sandbox) swap in + * without touching the model-facing tool that consumes them + * (`@deepseek-ai/dsh-tool-workflow`). + * + * The `workflow/*` lifecycle events are OBSERVE-ONLY data snapshots: they + * carry {@link WorkflowRunInfo} (id + meta), never the live {@link WorkflowRun} + * — a listener must not gain `cancel`/`dispose`; control stays with the + * `start()` caller holding the run. Every emit is per-listener contained (a + * throwing subscriber is logged, never propagated), so one bad observer can + * neither strand a live run nor starve later listeners. + * + * @module @deepseek-ai/dsh-workflow + */ + +import { Context, Service } from 'cordis' +import { HarnessError } from '@deepseek-ai/dsh-llm' +import type { + WorkflowAgentEndInfo, + WorkflowAgentInfo, + WorkflowResultInfo, + WorkflowRun, + WorkflowRunInfo, + WorkflowStartRequest, +} from './types.ts' + +export { WorkflowRunId } from './types.ts' +export type { + WorkflowAgentEndInfo, + WorkflowAgentInfo, + WorkflowAgentOutcome, + WorkflowMeta, + WorkflowPhase, + WorkflowResult, + WorkflowResultInfo, + WorkflowRun, + WorkflowRunInfo, + WorkflowStartRequest, + WorkflowStopReason, +} from './types.ts' + +declare module 'cordis' { + interface Context { + workflows: WorkflowService + } + + interface Events { + /** + * A workflow run started — the script's meta block validated, the body + * about to execute. Paired with {@link Events['workflow/end']}. + * @param info - the run's identity snapshot (id + meta). + * @mode emit + */ + 'workflow/start'(info: WorkflowRunInfo): void + /** + * The script entered a phase (a `phase(title)` call) — progress grouping + * for observers; no execution semantics. + * @param info - the run's identity snapshot. + * @param title - the phase title, verbatim. + * @mode emit + */ + 'workflow/phase'(info: WorkflowRunInfo, title: string): void + /** + * The script emitted a narration line (a `log(message)` call). + * @param info - the run's identity snapshot. + * @param message - the logged message, verbatim. + * @mode emit + */ + 'workflow/log'(info: WorkflowRunInfo, message: string): void + /** + * One `agent()` call started a child run. Paired with + * {@link Events['workflow/agent-end']} by `agent.seq`. + * @param info - the run's identity snapshot. + * @param agent - the call's sequence number, label, phase, and child id. + * @mode emit + */ + 'workflow/agent-start'(info: WorkflowRunInfo, agent: WorkflowAgentInfo): void + /** + * One `agent()` call settled (clean result, child failure, or run + * cancellation). Paired with {@link Events['workflow/agent-start']}. + * @param info - the run's identity snapshot. + * @param agent - the call identity plus its outcome. + * @mode emit + */ + 'workflow/agent-end'(info: WorkflowRunInfo, agent: WorkflowAgentEndInfo): void + /** + * A workflow run settled (any stop reason). Fired when + * {@link WorkflowRun.result} resolves. Paired with + * {@link Events['workflow/start']}. + * @param info - the run's identity snapshot. + * @param result - the outcome data (stop reason, error, agent count) — + * deliberately WITHOUT the result value (see {@link WorkflowResultInfo}). + * @mode emit + */ + 'workflow/end'(info: WorkflowRunInfo, result: WorkflowResultInfo): void + } +} + +/** The full set of `workflow/*` event names {@link WorkflowService.emitWorkflowEvent} dispatches. */ +export type WorkflowEventName = + | 'workflow/start' + | 'workflow/phase' + | 'workflow/log' + | 'workflow/agent-start' + | 'workflow/agent-end' + | 'workflow/end' + +/** + * The workflow-seam error codes. Every one of these is FATAL when it reaches + * a script (see {@link WorkflowError.fatal}): the combinators re-throw it + * instead of dissolving it into an ordinary per-item `null`. + * + * - `SCRIPT_PARSE` — the script (or its meta statement) does not parse. + * - `META_INVALID` — the meta block evaluated but fails the shape contract. + * - `INVALID_ARGUMENT` — a hook was called with malformed arguments. + * - `UNSUPPORTED_OPTION` — an `agent()` option this engine does not support + * (deferred: `effort`/`isolation`/`agentType`) or does not know. + * - `UNSUPPORTED_SCHEMA` — an `agent()` schema outside the structured-output + * subset (see dsh-tools). + * - `AGENT_CAP` / `ITEM_CAP` — the run/agent caps tripped. + * - `AGENT_START` — the subagent seam refused to start a child. + * - `RESULT_UNSERIALIZABLE` — a value crossing the realm boundary is not + * plain JSON data. + * - `CANCELLED` — the run was cancelled; pending and future hooks reject + * with this (the script-kill mechanism). + */ +export type WorkflowErrorCode = + | 'SCRIPT_PARSE' + | 'META_INVALID' + | 'INVALID_ARGUMENT' + | 'UNSUPPORTED_OPTION' + | 'UNSUPPORTED_SCHEMA' + | 'AGENT_CAP' + | 'ITEM_CAP' + | 'AGENT_START' + | 'RESULT_UNSERIALIZABLE' + | 'CANCELLED' + +/** + * Typed error for workflow-seam failures. Extends {@link HarnessError}, so the + * `code` is machine-routable taxonomy. `fatal` drives the combinator + * discipline: `parallel()`/`pipeline()` re-throw a fatal error (a typo'd + * option or a tripped cap must kill the script loudly), and reserve the + * per-item `null` for child-run failures and ordinary in-stage script errors. + * Every {@link WorkflowErrorCode} is fatal in this cut; the flag exists so the + * distinction is explicit at every catch site rather than implied. + */ +export class WorkflowError extends HarnessError { + /** Whether combinators must propagate this error instead of nulling the item. */ + readonly fatal: boolean + + constructor(message: string, code: WorkflowErrorCode, options?: ErrorOptions & { fatal?: boolean }) { + super(message, code, options) + this.name = 'WorkflowError' + this.fatal = options?.fatal ?? true + } +} + +/** Whether combinators must re-throw `error` instead of mapping the item to `null`. */ +export function isFatalWorkflowError(error: unknown): boolean { + return error instanceof WorkflowError && error.fatal +} + +/** + * Abstract workflow execution service. Subclass, implement {@link start}, and + * load the subclass as a plugin — it registers as `ctx.workflows` (one + * implementation per context; loading a second throws, cordis' standard + * duplicate-service behavior). + * + * Semantics every implementation must honor: + * - {@link start} throws synchronously for a request that cannot begin (an + * unparseable script, an invalid meta block). Once it returns a + * {@link WorkflowRun}, `result` NEVER rejects — every failure resolves with + * `stopReason: 'error'` (or `'cancelled'`). + * - The `workflow/*` events fire through {@link emitWorkflowEvent} (data + * snapshots, per-listener containment); `workflow/end` fires exactly once + * per started run, after `result` is settled or as it settles. + * - `dispose()` reaches quiescence within a bounded grace: it cancels, waits + * for the script to settle, and abandons a stuck script rather than + * hanging its caller (the engine documents what abandonment leaves behind). + */ +export abstract class WorkflowService extends Service { + constructor(ctx: Context) { + super(ctx, 'workflows') + } + + /** + * Parse and execute a workflow script. + * @param request - the script, its `args`, the parent agent, and an + * optional cancel signal. + * @returns the live run; its `result` resolves when the script settles. + */ + abstract start(request: WorkflowStartRequest): WorkflowRun + + /** + * Emit one `workflow/*` lifecycle event with PER-LISTENER containment: + * dispatch each subscriber individually and log (never propagate) a thrown + * one, so one bad subscriber can neither fail the engine mid-run, surface as + * an unhandled rejection on a detached settle hook, nor starve the listeners + * registered after it (cordis `emit` halts on the first throw — same + * guarantee as the subagent seam's lifecycle emits). + * @param name - the `workflow/*` event to dispatch. + * @param args - the event's payload, matching its declared signature. + */ + protected emitWorkflowEvent(name: WorkflowEventName, ...args: unknown[]): void { + for (const callback of this.ctx.events.dispatch('emit', [name, ...args])) { + try { + // The declared workflow/* signatures are all void-returning emits; the + // dispatch callback applies the payload tuple. + ;(callback as (...payload: unknown[]) => void)(...args) + } catch (error: unknown) { + this.ctx.logger.warn(`workflow: ${name} listener threw: ${String(error)}`) + } + } + } +} + +export default WorkflowService diff --git a/packages/workflow/workflow/src/types.ts b/packages/workflow/workflow/src/types.ts new file mode 100644 index 0000000000..32377ee46b --- /dev/null +++ b/packages/workflow/workflow/src/types.ts @@ -0,0 +1,154 @@ +/** + * Workflow seam vocabulary: the request/run/result types a workflow engine + * consumes and produces, plus the payload shapes of the `workflow/*` events. + * Types only (plus the id-brand factory), per the package convention. + * + * @module @deepseek-ai/dsh-workflow/types + */ + +import type { Branded } from '@deepseek-ai/dsh-brand' +import type { Agent, AgentId } from '@deepseek-ai/dsh-agent' + +/** Identifies one workflow run. */ +export type WorkflowRunId = Branded<'WorkflowRunId'> + +/** Brand a string as a {@link WorkflowRunId}. */ +export function WorkflowRunId(id: string): WorkflowRunId { + return id as WorkflowRunId +} + +/** + * One phase declared in a script's `meta.phases` (progress vocabulary only — + * phases group agents in observers/UIs; they impose no execution structure). + */ +export interface WorkflowPhase { + /** The phase title; `phase()` calls match against it by exact string. */ + title: string + /** Optional one-line description of what the phase does. */ + detail?: string + /** Optional model override this phase is expected to use (informational). */ + model?: string +} + +/** + * The script's `export const meta` block, validated by the engine before the + * body runs. `name`/`description` are required; the rest is optional + * annotation. Matches the Claude Code dynamic-workflows script format. + */ +export interface WorkflowMeta { + /** Short kebab-case workflow name (display + persistence key). */ + name: string + /** One-line description of what the workflow does. */ + description: string + /** Optional guidance on when this workflow applies (shown in listings). */ + whenToUse?: string + /** Optional phase declarations matched by `phase()` calls. */ + phases?: WorkflowPhase[] +} + +/** + * What a caller asks for when starting a workflow run. `parent` is REQUIRED — + * every `agent()` the script spawns is attributed to it (cwd, lineage, depth + * flow through the subagent seam). `args` must be plain host-realm JSON data; + * the engine exposes it to the script as the `args` global. + */ +export interface WorkflowStartRequest { + /** The full script text: `export const meta = {...}` + a plain-JS body. */ + script: string + /** Optional input exposed verbatim to the script as the `args` global. */ + args?: unknown + /** The agent on whose behalf the run executes (parent of every child). */ + parent: Agent + /** Cancels the run when aborted (the tool's `exec.signal`). */ + signal?: AbortSignal +} + +/** + * Why a run settled. CLOSED union (engine-owned, consumers may exhaust): + * `completed` = the script ran to its final `return`; `cancelled` = the run + * was cancelled (caller `cancel()`/signal); `error` = the script threw, a + * fatal `WorkflowError` propagated, or the result failed materialization. + */ +export type WorkflowStopReason = 'completed' | 'cancelled' | 'error' + +/** + * The outcome of one run, resolved by {@link WorkflowRun.result}. `value` is + * the script's materialized return value (plain host-realm JSON data; `null` + * when the script returned `undefined`) — meaningful only for `completed`. + * A non-`completed` reason carries the failure in `error`; the consumer maps + * it to an `isError` tool result rather than reporting partial output. + */ +export interface WorkflowResult { + /** The script's return value (host JSON data; `null` for no return). */ + value: unknown + /** Why the run settled. */ + stopReason: WorkflowStopReason + /** The failure message (present iff `stopReason` is not `completed`). */ + error?: string + /** How many `agent()` calls the run started (across its whole lifetime). */ + agentsStarted: number +} + +/** + * The handle the consumer holds while a script executes. The consumer awaits + * `result`, may `cancel` mid-flight, and MUST `dispose` on every path. + * `result` does NOT reject — a script failure resolves with `stopReason: + * 'error'` — so the consumer maps a non-`completed` reason to an `isError` + * result. `dispose()` cancels, then waits a bounded grace for the script to + * settle before abandoning it (the engine documents the abandonment + * semantics); it never hangs on a stuck script. + */ +export interface WorkflowRun { + readonly id: WorkflowRunId + /** The validated meta block (available before the body runs). */ + readonly meta: WorkflowMeta + readonly result: Promise + /** Cancel the run: children abort, pending hooks reject, the script dies at its next await. */ + cancel(reason?: string): void + /** Cancel + bounded-grace settle; safe to call on every path (idempotent). */ + dispose(): Promise +} + +/** Identifying detail for a run, carried by every `workflow/*` event (a data snapshot, never the live run). */ +export interface WorkflowRunInfo { + /** The run's id. */ + id: WorkflowRunId + /** The run's validated meta block. */ + meta: WorkflowMeta +} + +/** One `agent()` call's identity within a run (the `workflow/agent-start` payload). */ +export interface WorkflowAgentInfo { + /** 1-based sequence number of this `agent()` call within the run. */ + seq: number + /** The display label (the `label` option, or a prompt snippet). */ + label: string + /** The phase this agent belongs to (the `phase` option, else the current `phase()` title). */ + phase?: string + /** The child agent's id on the subagent seam. */ + childId: AgentId +} + +/** How one `agent()` call settled: clean result, child failure (script sees `null`), or run cancellation. */ +export type WorkflowAgentOutcome = 'completed' | 'failed' | 'cancelled' + +/** One `agent()` call's settlement (the `workflow/agent-end` payload). */ +export interface WorkflowAgentEndInfo extends WorkflowAgentInfo { + /** How the call settled. */ + outcome: WorkflowAgentOutcome +} + +/** + * A settled run's outcome as event data (the `workflow/end` payload): the + * {@link WorkflowResult} minus `value` (a listener observing outcomes must not + * receive a mutable alias of the caller's result value; a consumer that needs + * the value holds the run and awaits `result`). + */ +export interface WorkflowResultInfo { + /** Why the run settled. */ + stopReason: WorkflowStopReason + /** The failure message (present iff `stopReason` is not `completed`). */ + error?: string + /** How many `agent()` calls the run started. */ + agentsStarted: number +} diff --git a/packages/workflow/workflow/tests/workflow.spec.ts b/packages/workflow/workflow/tests/workflow.spec.ts new file mode 100644 index 0000000000..a5bd8cd1ed --- /dev/null +++ b/packages/workflow/workflow/tests/workflow.spec.ts @@ -0,0 +1,86 @@ +import { describe, expect, it, vi } from 'vitest' +import { Context } from 'cordis' +import WorkflowServiceDefault, { + isFatalWorkflowError, + WorkflowError, + WorkflowRunId, + WorkflowService, +} from '../src/index.ts' +import type { WorkflowRun, WorkflowRunInfo, WorkflowStartRequest } from '../src/index.ts' + +/** A minimal concrete subclass exposing the protected emit helper for tests. */ +class StubEngine extends WorkflowService { + start(request: WorkflowStartRequest): WorkflowRun { + void request + throw new Error('not under test') + } + + emit(name: Parameters[0], ...args: unknown[]): void { + this.emitWorkflowEvent(name, ...args) + } +} + +const INFO: WorkflowRunInfo = { id: WorkflowRunId('run-1'), meta: { name: 'w', description: 'd' } } + +describe('dsh-workflow (interface)', () => { + it('WorkflowRunId brands a string (identity at runtime)', () => { + expect(WorkflowRunId('abc')).toBe('abc') + }) + + it('WorkflowError carries code + fatal (default true) and reads as a HarnessError', () => { + const error = new WorkflowError('cap hit', 'AGENT_CAP') + expect(error.code).toBe('AGENT_CAP') + expect(error.fatal).toBe(true) + expect(error.name).toBe('WorkflowError') + const soft = new WorkflowError('advisory', 'ITEM_CAP', { fatal: false }) + expect(soft.fatal).toBe(false) + }) + + it('isFatalWorkflowError: true only for a fatal WorkflowError', () => { + expect(isFatalWorkflowError(new WorkflowError('x', 'CANCELLED'))).toBe(true) + expect(isFatalWorkflowError(new WorkflowError('x', 'CANCELLED', { fatal: false }))).toBe(false) + expect(isFatalWorkflowError(new Error('plain'))).toBe(false) + expect(isFatalWorkflowError('string')).toBe(false) + }) + + it('registers as ctx.workflows and unregisters when its fiber is disposed (HMR safety)', async () => { + const ctx = new Context() + const fiber = await ctx.plugin(StubEngine) + expect(ctx.get('workflows')).toBeInstanceOf(StubEngine) + await fiber.dispose() + expect(ctx.get('workflows')).toBeUndefined() + }) + + it('emitWorkflowEvent dispatches to every listener with the payload tuple', async () => { + const ctx = new Context() + await ctx.plugin(StubEngine) + const seen: unknown[][] = [] + ctx.on('workflow/log', (info, message) => { seen.push([info, message]) }) + ctx.on('workflow/agent-start', (info, agent) => { seen.push([info, agent]) }) + const engine = ctx.workflows as StubEngine + engine.emit('workflow/log', INFO, 'hello') + engine.emit('workflow/agent-start', INFO, { seq: 1, label: 'l', childId: 'c' }) + expect(seen).toEqual([ + [INFO, 'hello'], + [INFO, { seq: 1, label: 'l', childId: 'c' }], + ]) + }) + + it('contains a throwing listener PER LISTENER: later listeners still run, nothing propagates', async () => { + const ctx = new Context() + await ctx.plugin(StubEngine) + const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => ctx.logger) + const reached: string[] = [] + ctx.on('workflow/phase', () => { throw new Error('bad listener') }) + ctx.on('workflow/phase', (_info, title) => { reached.push(title) }) + const engine = ctx.workflows as StubEngine + expect(() => { engine.emit('workflow/phase', INFO, 'Scan') }).not.toThrow() + expect(reached).toEqual(['Scan']) + expect(warn).toHaveBeenCalledOnce() + expect(String(warn.mock.calls[0]![0])).toContain('workflow/phase listener threw') + }) + + it('has the expected export surface (default = the abstract service class)', () => { + expect(WorkflowServiceDefault).toBe(WorkflowService) + }) +}) diff --git a/packages/workflow/workflow/tsconfig.json b/packages/workflow/workflow/tsconfig.json new file mode 100644 index 0000000000..6ec42e0bfe --- /dev/null +++ b/packages/workflow/workflow/tsconfig.json @@ -0,0 +1,27 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../core/agent" + }, + { + "path": "../../util/brand" + }, + { + "path": "../../llm/llm" + } + ] +} diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 06189862f2..7877dc9fad 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -635,6 +635,12 @@ importers: '@deepseek-ai/dsh-subagent': specifier: workspace:^ version: link:../subagent + '@deepseek-ai/dsh-subagent-fork': + specifier: workspace:^ + version: link:../subagent-fork + '@deepseek-ai/dsh-subagent-spawn': + specifier: workspace:^ + version: link:../subagent-spawn '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../../core/system-prompt @@ -1039,6 +1045,95 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/workflow/tool-workflow: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../../core/agent + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + '@deepseek-ai/dsh-session': + specifier: workspace:^ + version: link:../../core/session + '@deepseek-ai/dsh-system-prompt': + specifier: workspace:^ + version: link:../../core/system-prompt + '@deepseek-ai/dsh-tools': + specifier: workspace:^ + version: link:../../core/tools + '@deepseek-ai/dsh-workflow': + specifier: workspace:^ + version: link:../workflow + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + + packages/workflow/workflow: + devDependencies: + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../../core/agent + '@deepseek-ai/dsh-brand': + specifier: workspace:^ + version: link:../../util/brand + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + '@deepseek-ai/dsh-session': + specifier: workspace:^ + version: link:../../core/session + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + + packages/workflow/workflow-vm: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../../core/agent + '@deepseek-ai/dsh-agent-loop': + specifier: workspace:^ + version: link:../../core/agent-loop + '@deepseek-ai/dsh-brand': + specifier: workspace:^ + version: link:../../util/brand + '@deepseek-ai/dsh-invariants': + specifier: workspace:^ + version: link:../../support/invariants + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + '@deepseek-ai/dsh-session': + specifier: workspace:^ + version: link:../../core/session + '@deepseek-ai/dsh-subagent': + specifier: workspace:^ + version: link:../../subagent/subagent + '@deepseek-ai/dsh-subagent-spawn': + specifier: workspace:^ + version: link:../../subagent/subagent-spawn + '@deepseek-ai/dsh-system-prompt': + specifier: workspace:^ + version: link:../../core/system-prompt + '@deepseek-ai/dsh-tools': + specifier: workspace:^ + version: link:../../core/tools + '@deepseek-ai/dsh-workflow': + specifier: workspace:^ + version: link:../workflow + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + vendor/cordis: dependencies: '@cordisjs/plugin-include': diff --git a/scripts/doc-budgets.manifest.json b/scripts/doc-budgets.manifest.json index 26db66b995..9058427020 100644 --- a/scripts/doc-budgets.manifest.json +++ b/scripts/doc-budgets.manifest.json @@ -1,5 +1,5 @@ { - "AGENTS.md": 1575, + "AGENTS.md": 1590, "docs/AGENTS.md": 1315, "docs/architecture.md": 1890, "docs/defensive-patterns.md": 550, diff --git a/scripts/gen-tool-catalog.ts b/scripts/gen-tool-catalog.ts index 9dd8e0a6e6..ce1fee586a 100644 --- a/scripts/gen-tool-catalog.ts +++ b/scripts/gen-tool-catalog.ts @@ -51,6 +51,8 @@ import * as ToolFs from '@deepseek-ai/dsh-tool-fs' import * as ToolTodo from '@deepseek-ai/dsh-tool-todo' import * as ToolSubagent from '@deepseek-ai/dsh-tool-subagent' import * as ToolWeb from '@deepseek-ai/dsh-tool-web' +import VmWorkflowEngine from '@deepseek-ai/dsh-workflow-vm' +import * as ToolWorkflow from '@deepseek-ai/dsh-tool-workflow' const root = resolve(import.meta.dirname, '..') const OUT = 'docs/tool-catalog/tools.md' @@ -138,6 +140,20 @@ const TOOL_PACKAGES: ToolPackage[] = [ await ctx.plugin(ToolTodo) }, }, + { + pkg: '@deepseek-ai/dsh-tool-workflow', + dir: 'tool-workflow', + source: 'packages/workflow/tool-workflow/src/index.ts', + async mount(ctx) { + // The tool injects `workflows`; boot the vm engine over a scripted + // subagent provider to satisfy it. The schema does not depend on which + // provider backs the engine. + await ctx.plugin(SubagentService) + await ctx.plugin(SubagentMock, { name: 'mock' }) + await ctx.plugin(VmWorkflowEngine, { provider: 'mock' }) + await ctx.plugin(ToolWorkflow) + }, + }, { pkg: '@deepseek-ai/dsh-tool-web', dir: 'tool-web', diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index b1c3163782..18927fc884 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -1,82 +1,365 @@ { "comment": "Maps each ` ```ts type-equiv ` block (by doc + declared symbol) to the source symbol it must match verbatim. verify-type-equiv.ts enforces a 1:1 correspondence: every type-equiv block has exactly one entry here, and every entry resolves to exactly one block. Add an entry when you add a type-equiv block; remove it when you remove the block.", "entries": [ - { "doc": "docs/core-data-structures/core.md", "symbol": "Branded", "source": "packages/util/brand/src/index.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "ContentBlockMap", "source": "packages/llm/llm/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "Message", "source": "packages/llm/llm/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "MessageSourceMap", "source": "packages/llm/llm/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "FinishReasonMap", "source": "packages/llm/llm/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "GenerateOptions", "source": "packages/llm/llm/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "ToolSchema", "source": "packages/llm/llm/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "SessionEvent", "source": "packages/core/session/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "Agent", "source": "packages/core/agent/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "HookContext", "source": "packages/core/agent/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "PromptDecision", "source": "packages/core/agent/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "ContinuationDecision", "source": "packages/core/agent/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "SessionStartSource", "source": "packages/core/agent/src/types.ts" }, - - { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "StreamChunk", "source": "packages/llm/llm/src/types.ts" }, - { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "TokenUsage", "source": "packages/llm/llm/src/types.ts" }, - { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "ContentBlockMap", "source": "packages/llm/llm/src/types.ts" }, - { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "AppIdentity", "source": "packages/llm/llm/src/attribution.ts" }, - - { "doc": "docs/core-data-structures/session.md", "symbol": "SessionEventMap", "source": "packages/core/session/src/types.ts" }, - { "doc": "docs/core-data-structures/session.md", "symbol": "TodoItem", "source": "packages/core/session/src/types.ts" }, - { "doc": "docs/core-data-structures/session.md", "symbol": "SessionEvent", "source": "packages/core/session/src/types.ts" }, - { "doc": "docs/core-data-structures/session.md", "symbol": "TurnTriggerMap", "source": "packages/core/session/src/types.ts" }, - { "doc": "docs/core-data-structures/session.md", "symbol": "TurnEndReasonMap", "source": "packages/core/session/src/types.ts" }, - { "doc": "docs/core-data-structures/session.md", "symbol": "SurfaceEventType", "source": "packages/core/session/src/types.ts" }, - { "doc": "docs/core-data-structures/session.md", "symbol": "SurfaceOp", "source": "packages/core/session/src/types.ts" }, - { "doc": "docs/core-data-structures/session.md", "symbol": "SurfaceIntent", "source": "packages/core/session/src/types.ts" }, - { "doc": "docs/core-data-structures/session.md", "symbol": "SurfaceNode", "source": "packages/core/session/src/surface.ts" }, - - { "doc": "docs/core-data-structures/persistence.md", "symbol": "SessionHeader", "source": "packages/core/session/src/types.ts" }, - { "doc": "docs/core-data-structures/persistence.md", "symbol": "CreateSessionOptions", "source": "packages/core/session/src/types.ts" }, - - { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolDefinition", "source": "packages/core/tools/src/index.ts" }, - { "doc": "docs/core-data-structures/tools.md", "symbol": "SchemaProp", "source": "packages/core/tools/src/schema.ts" }, - { "doc": "docs/core-data-structures/tools.md", "symbol": "SchemaSpec", "source": "packages/core/tools/src/schema.ts" }, - { "doc": "docs/core-data-structures/tools.md", "symbol": "InferArgs", "source": "packages/core/tools/src/schema.ts" }, - { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolExecution", "source": "packages/core/tools/src/index.ts" }, - { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolExecutionResult", "source": "packages/core/tools/src/index.ts" }, - { "doc": "docs/core-data-structures/tools.md", "symbol": "PreToolDecision", "source": "packages/core/tools/src/index.ts" }, - { "doc": "docs/core-data-structures/tools.md", "symbol": "PostToolDecision", "source": "packages/core/tools/src/index.ts" }, - - { "doc": "docs/core-data-structures/bash.md", "symbol": "BashExecRequest", "source": "packages/bash/bash/src/types.ts" }, - { "doc": "docs/core-data-structures/bash.md", "symbol": "BashExecSpec", "source": "packages/bash/bash/src/types.ts" }, - { "doc": "docs/core-data-structures/bash.md", "symbol": "BashRunResult", "source": "packages/bash/bash/src/types.ts" }, - { "doc": "docs/core-data-structures/bash.md", "symbol": "CollectedOutput", "source": "packages/bash/bash/src/types.ts" }, - { "doc": "docs/core-data-structures/bash.md", "symbol": "BashTask", "source": "packages/bash/bash/src/types.ts" }, - { "doc": "docs/core-data-structures/bash.md", "symbol": "BashTaskRead", "source": "packages/bash/bash/src/types.ts" }, - - { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FsTarget", "source": "packages/fs/fs/src/types.ts" }, - { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FsTargetKey", "source": "packages/fs/fs/src/types.ts" }, - { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FsVersion", "source": "packages/fs/fs/src/types.ts" }, - { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FsInfo", "source": "packages/fs/fs/src/types.ts" }, - { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FsDirEntry", "source": "packages/fs/fs/src/types.ts" }, - { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FsWriteIntent", "source": "packages/fs/fs/src/types.ts" }, - { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FsWriteOutcome", "source": "packages/fs/fs/src/types.ts" }, - { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FsEditRequest", "source": "packages/fs/fs/src/types.ts" }, - { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FsEditOutcome", "source": "packages/fs/fs/src/types.ts" }, - { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FsErrorCode", "source": "packages/fs/fs/src/types.ts" }, - { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FsPolicyExec", "source": "packages/fs/fs-policy/src/types.ts" }, - { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FileReadOutcome", "source": "packages/fs/tool-fs/src/read-render.ts" }, - - { "doc": "docs/core-data-structures/compaction.md", "symbol": "CompactionResult", "source": "packages/compact/compact/src/types.ts" }, - - { "doc": "docs/core-data-structures/subagent.md", "symbol": "SubagentCapabilities", "source": "packages/subagent/subagent/src/types.ts" }, - { "doc": "docs/core-data-structures/subagent.md", "symbol": "SubagentStartRequest", "source": "packages/subagent/subagent/src/types.ts" }, - { "doc": "docs/core-data-structures/subagent.md", "symbol": "SubagentResult", "source": "packages/subagent/subagent/src/types.ts" }, - { "doc": "docs/core-data-structures/subagent.md", "symbol": "SubagentStopReasonMap", "source": "packages/subagent/subagent/src/types.ts" }, - { "doc": "docs/core-data-structures/subagent.md", "symbol": "SubagentRun", "source": "packages/subagent/subagent/src/types.ts" }, - { "doc": "docs/core-data-structures/subagent.md", "symbol": "SubagentProvider", "source": "packages/subagent/subagent/src/types.ts" }, - - { "doc": "docs/core-data-structures/web.md", "symbol": "WebSearchRequest", "source": "packages/web/web/src/types.ts" }, - { "doc": "docs/core-data-structures/web.md", "symbol": "WebSearchResult", "source": "packages/web/web/src/types.ts" }, - { "doc": "docs/core-data-structures/web.md", "symbol": "WebSearchSource", "source": "packages/web/web/src/types.ts" }, - { "doc": "docs/core-data-structures/web.md", "symbol": "WebFetchRequest", "source": "packages/web/web/src/types.ts" }, - { "doc": "docs/core-data-structures/web.md", "symbol": "WebFetchResult", "source": "packages/web/web/src/types.ts" }, - { "doc": "docs/core-data-structures/web.md", "symbol": "WebFetchBody", "source": "packages/web/web/src/types.ts" }, - { "doc": "docs/core-data-structures/web.md", "symbol": "WebProviderStatus", "source": "packages/web/web/src/types.ts" } + { + "doc": "docs/core-data-structures/core.md", + "symbol": "Branded", + "source": "packages/util/brand/src/index.ts" + }, + { + "doc": "docs/core-data-structures/core.md", + "symbol": "ContentBlockMap", + "source": "packages/llm/llm/src/types.ts" + }, + { + "doc": "docs/core-data-structures/core.md", + "symbol": "Message", + "source": "packages/llm/llm/src/types.ts" + }, + { + "doc": "docs/core-data-structures/core.md", + "symbol": "MessageSourceMap", + "source": "packages/llm/llm/src/types.ts" + }, + { + "doc": "docs/core-data-structures/core.md", + "symbol": "FinishReasonMap", + "source": "packages/llm/llm/src/types.ts" + }, + { + "doc": "docs/core-data-structures/core.md", + "symbol": "GenerateOptions", + "source": "packages/llm/llm/src/types.ts" + }, + { + "doc": "docs/core-data-structures/core.md", + "symbol": "ToolSchema", + "source": "packages/llm/llm/src/types.ts" + }, + { + "doc": "docs/core-data-structures/core.md", + "symbol": "SessionEvent", + "source": "packages/core/session/src/types.ts" + }, + { + "doc": "docs/core-data-structures/core.md", + "symbol": "Agent", + "source": "packages/core/agent/src/types.ts" + }, + { + "doc": "docs/core-data-structures/core.md", + "symbol": "HookContext", + "source": "packages/core/agent/src/types.ts" + }, + { + "doc": "docs/core-data-structures/core.md", + "symbol": "PromptDecision", + "source": "packages/core/agent/src/types.ts" + }, + { + "doc": "docs/core-data-structures/core.md", + "symbol": "ContinuationDecision", + "source": "packages/core/agent/src/types.ts" + }, + { + "doc": "docs/core-data-structures/core.md", + "symbol": "SessionStartSource", + "source": "packages/core/agent/src/types.ts" + }, + { + "doc": "docs/core-data-structures/llm-streaming.md", + "symbol": "StreamChunk", + "source": "packages/llm/llm/src/types.ts" + }, + { + "doc": "docs/core-data-structures/llm-streaming.md", + "symbol": "TokenUsage", + "source": "packages/llm/llm/src/types.ts" + }, + { + "doc": "docs/core-data-structures/llm-streaming.md", + "symbol": "ContentBlockMap", + "source": "packages/llm/llm/src/types.ts" + }, + { + "doc": "docs/core-data-structures/llm-streaming.md", + "symbol": "AppIdentity", + "source": "packages/llm/llm/src/attribution.ts" + }, + { + "doc": "docs/core-data-structures/session.md", + "symbol": "SessionEventMap", + "source": "packages/core/session/src/types.ts" + }, + { + "doc": "docs/core-data-structures/session.md", + "symbol": "TodoItem", + "source": "packages/core/session/src/types.ts" + }, + { + "doc": "docs/core-data-structures/session.md", + "symbol": "SessionEvent", + "source": "packages/core/session/src/types.ts" + }, + { + "doc": "docs/core-data-structures/session.md", + "symbol": "TurnTriggerMap", + "source": "packages/core/session/src/types.ts" + }, + { + "doc": "docs/core-data-structures/session.md", + "symbol": "TurnEndReasonMap", + "source": "packages/core/session/src/types.ts" + }, + { + "doc": "docs/core-data-structures/session.md", + "symbol": "SurfaceEventType", + "source": "packages/core/session/src/types.ts" + }, + { + "doc": "docs/core-data-structures/session.md", + "symbol": "SurfaceOp", + "source": "packages/core/session/src/types.ts" + }, + { + "doc": "docs/core-data-structures/session.md", + "symbol": "SurfaceIntent", + "source": "packages/core/session/src/types.ts" + }, + { + "doc": "docs/core-data-structures/session.md", + "symbol": "SurfaceNode", + "source": "packages/core/session/src/surface.ts" + }, + { + "doc": "docs/core-data-structures/persistence.md", + "symbol": "SessionHeader", + "source": "packages/core/session/src/types.ts" + }, + { + "doc": "docs/core-data-structures/persistence.md", + "symbol": "CreateSessionOptions", + "source": "packages/core/session/src/types.ts" + }, + { + "doc": "docs/core-data-structures/tools.md", + "symbol": "ToolDefinition", + "source": "packages/core/tools/src/index.ts" + }, + { + "doc": "docs/core-data-structures/tools.md", + "symbol": "SchemaProp", + "source": "packages/core/tools/src/schema.ts" + }, + { + "doc": "docs/core-data-structures/tools.md", + "symbol": "SchemaSpec", + "source": "packages/core/tools/src/schema.ts" + }, + { + "doc": "docs/core-data-structures/tools.md", + "symbol": "InferArgs", + "source": "packages/core/tools/src/schema.ts" + }, + { + "doc": "docs/core-data-structures/tools.md", + "symbol": "ToolExecution", + "source": "packages/core/tools/src/index.ts" + }, + { + "doc": "docs/core-data-structures/tools.md", + "symbol": "ToolExecutionResult", + "source": "packages/core/tools/src/index.ts" + }, + { + "doc": "docs/core-data-structures/tools.md", + "symbol": "PreToolDecision", + "source": "packages/core/tools/src/index.ts" + }, + { + "doc": "docs/core-data-structures/tools.md", + "symbol": "PostToolDecision", + "source": "packages/core/tools/src/index.ts" + }, + { + "doc": "docs/core-data-structures/bash.md", + "symbol": "BashExecRequest", + "source": "packages/bash/bash/src/types.ts" + }, + { + "doc": "docs/core-data-structures/bash.md", + "symbol": "BashExecSpec", + "source": "packages/bash/bash/src/types.ts" + }, + { + "doc": "docs/core-data-structures/bash.md", + "symbol": "BashRunResult", + "source": "packages/bash/bash/src/types.ts" + }, + { + "doc": "docs/core-data-structures/bash.md", + "symbol": "CollectedOutput", + "source": "packages/bash/bash/src/types.ts" + }, + { + "doc": "docs/core-data-structures/bash.md", + "symbol": "BashTask", + "source": "packages/bash/bash/src/types.ts" + }, + { + "doc": "docs/core-data-structures/bash.md", + "symbol": "BashTaskRead", + "source": "packages/bash/bash/src/types.ts" + }, + { + "doc": "docs/core-data-structures/filesystem.md", + "symbol": "FsTarget", + "source": "packages/fs/fs/src/types.ts" + }, + { + "doc": "docs/core-data-structures/filesystem.md", + "symbol": "FsTargetKey", + "source": "packages/fs/fs/src/types.ts" + }, + { + "doc": "docs/core-data-structures/filesystem.md", + "symbol": "FsVersion", + "source": "packages/fs/fs/src/types.ts" + }, + { + "doc": "docs/core-data-structures/filesystem.md", + "symbol": "FsInfo", + "source": "packages/fs/fs/src/types.ts" + }, + { + "doc": "docs/core-data-structures/filesystem.md", + "symbol": "FsDirEntry", + "source": "packages/fs/fs/src/types.ts" + }, + { + "doc": "docs/core-data-structures/filesystem.md", + "symbol": "FsWriteIntent", + "source": "packages/fs/fs/src/types.ts" + }, + { + "doc": "docs/core-data-structures/filesystem.md", + "symbol": "FsWriteOutcome", + "source": "packages/fs/fs/src/types.ts" + }, + { + "doc": "docs/core-data-structures/filesystem.md", + "symbol": "FsEditRequest", + "source": "packages/fs/fs/src/types.ts" + }, + { + "doc": "docs/core-data-structures/filesystem.md", + "symbol": "FsEditOutcome", + "source": "packages/fs/fs/src/types.ts" + }, + { + "doc": "docs/core-data-structures/filesystem.md", + "symbol": "FsErrorCode", + "source": "packages/fs/fs/src/types.ts" + }, + { + "doc": "docs/core-data-structures/filesystem.md", + "symbol": "FsPolicyExec", + "source": "packages/fs/fs-policy/src/types.ts" + }, + { + "doc": "docs/core-data-structures/filesystem.md", + "symbol": "FileReadOutcome", + "source": "packages/fs/tool-fs/src/read-render.ts" + }, + { + "doc": "docs/core-data-structures/compaction.md", + "symbol": "CompactionResult", + "source": "packages/compact/compact/src/types.ts" + }, + { + "doc": "docs/core-data-structures/subagent.md", + "symbol": "SubagentCapabilities", + "source": "packages/subagent/subagent/src/types.ts" + }, + { + "doc": "docs/core-data-structures/subagent.md", + "symbol": "SubagentStartRequest", + "source": "packages/subagent/subagent/src/types.ts" + }, + { + "doc": "docs/core-data-structures/subagent.md", + "symbol": "SubagentResult", + "source": "packages/subagent/subagent/src/types.ts" + }, + { + "doc": "docs/core-data-structures/subagent.md", + "symbol": "SubagentStopReasonMap", + "source": "packages/subagent/subagent/src/types.ts" + }, + { + "doc": "docs/core-data-structures/subagent.md", + "symbol": "SubagentRun", + "source": "packages/subagent/subagent/src/types.ts" + }, + { + "doc": "docs/core-data-structures/subagent.md", + "symbol": "SubagentProvider", + "source": "packages/subagent/subagent/src/types.ts" + }, + { + "doc": "docs/core-data-structures/web.md", + "symbol": "WebSearchRequest", + "source": "packages/web/web/src/types.ts" + }, + { + "doc": "docs/core-data-structures/web.md", + "symbol": "WebSearchResult", + "source": "packages/web/web/src/types.ts" + }, + { + "doc": "docs/core-data-structures/web.md", + "symbol": "WebSearchSource", + "source": "packages/web/web/src/types.ts" + }, + { + "doc": "docs/core-data-structures/web.md", + "symbol": "WebFetchRequest", + "source": "packages/web/web/src/types.ts" + }, + { + "doc": "docs/core-data-structures/web.md", + "symbol": "WebFetchResult", + "source": "packages/web/web/src/types.ts" + }, + { + "doc": "docs/core-data-structures/web.md", + "symbol": "WebFetchBody", + "source": "packages/web/web/src/types.ts" + }, + { + "doc": "docs/core-data-structures/web.md", + "symbol": "WebProviderStatus", + "source": "packages/web/web/src/types.ts" + }, + { + "doc": "docs/core-data-structures/workflow.md", + "symbol": "WorkflowStartRequest", + "source": "packages/workflow/workflow/src/types.ts" + }, + { + "doc": "docs/core-data-structures/workflow.md", + "symbol": "WorkflowMeta", + "source": "packages/workflow/workflow/src/types.ts" + }, + { + "doc": "docs/core-data-structures/workflow.md", + "symbol": "WorkflowResult", + "source": "packages/workflow/workflow/src/types.ts" + }, + { + "doc": "docs/core-data-structures/workflow.md", + "symbol": "WorkflowRun", + "source": "packages/workflow/workflow/src/types.ts" + } ] } diff --git a/tsconfig.base.json b/tsconfig.base.json index 40e4dbe728..b21ca2b8b5 100644 --- a/tsconfig.base.json +++ b/tsconfig.base.json @@ -46,6 +46,7 @@ "./packages/fs/*/src", "./packages/compact/*/src", "./packages/subagent/*/src", + "./packages/workflow/*/src", "./packages/web/*/src", "./packages/todo/*/src", "./packages/hooks/*/src", diff --git a/tsconfig.build.json b/tsconfig.build.json index b6ba7901f2..93cce8f4b9 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -51,6 +51,9 @@ { "path": "./packages/subagent/subagent-spawn" }, { "path": "./packages/subagent/subagent-fork" }, { "path": "./packages/subagent/subagent-acp" }, + { "path": "./packages/workflow/workflow" }, + { "path": "./packages/workflow/workflow-vm" }, + { "path": "./packages/workflow/tool-workflow" }, { "path": "./packages/todo/tool-todo" }, { "path": "./packages/hooks/hook-protocol" }, { "path": "./packages/hooks/hooks-claude" }, diff --git a/tsconfig.json b/tsconfig.json index 9cd7aa8a6d..ba5ccbac26 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -62,6 +62,9 @@ { "path": "./packages/subagent/subagent-spawn" }, { "path": "./packages/subagent/subagent-fork" }, { "path": "./packages/subagent/subagent-acp" }, + { "path": "./packages/workflow/workflow" }, + { "path": "./packages/workflow/workflow-vm" }, + { "path": "./packages/workflow/tool-workflow" }, { "path": "./packages/todo/tool-todo" }, { "path": "./packages/hooks/hook-protocol" }, { "path": "./packages/hooks/hooks-claude" }, From f626e569a4d5db00d263d5da7ab4322f9573c7da Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Sun, 5 Jul 2026 17:00:31 +0800 Subject: [PATCH 009/232] docs: document skill system design Add the implemented skill-system RFC, a core data-structures page, and JSDoc for the skill public vocabulary so the generated catalogs and review-facing docs describe the new service/tool contract. --- docs/cordis-catalog/services.md | 2 +- docs/core-data-structures/core.md | 1 + docs/core-data-structures/skills.md | 89 +++++++++++++++++++ docs/rfc/README.md | 1 + .../feature/2026-07-05-skill-system.md | 45 ++++++++++ packages/core/skill/src/index.ts | 15 ++++ scripts/type-equiv.manifest.json | 7 ++ 7 files changed, 159 insertions(+), 1 deletion(-) create mode 100644 docs/core-data-structures/skills.md create mode 100644 docs/rfc/implemented/feature/2026-07-05-skill-system.md diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 5f4647db04..fd2eb68161 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -176,7 +176,7 @@ async get(name: string, options: SkillLookupOptions = {}): Promise ``` -Source: [`packages/core/skill/src/index.ts:113`](../../packages/core/skill/src/index.ts) +Source: [`packages/core/skill/src/index.ts:128`](../../packages/core/skill/src/index.ts) ## `ctx.subagents` — `SubagentService` diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index 7f38abe985..6c565766b9 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -21,6 +21,7 @@ Everything else is documented on a **sub-page**, not here. The rule that draws t | [tools.md](tools.md) | `ToolDefinition` full fields, the schema DSL, `ToolExecution`/`ToolResult`, tool-presentation UI types, the `tools/pre-execute`/`tools/post-execute` pipeline | | [bash.md](bash.md) | the bash executor seam: `BashExecRequest`/`Spec`, `BashRunResult`, background `BashTask`s | | [filesystem.md](filesystem.md) | the filesystem seam: `FsTarget`, read/write/edit outcomes, observed-file state, `FsErrorCode` | +| [skills.md](skills.md) | the skill service: discovery priority, `SkillSummary`/`SkillDefinition`, prompt listing, model-facing `skill` loading | | [compaction.md](compaction.md) | the compaction seam: the `compact/*` session events, `CompactionResult`, the `CompactService` interface | | [subagent.md](subagent.md) | the subagent seam: the named-provider registry, `SubagentStartRequest`/`Result`/`Run`, the start-time-vs-runtime capability split | | [web.md](web.md) | the web access seam: `WebSearchRequest`/`Result`, `WebFetchRequest`/`Result`, `WebFetchBody`, provider/capability status, `WebError` | diff --git a/docs/core-data-structures/skills.md b/docs/core-data-structures/skills.md new file mode 100644 index 0000000000..930bc9f636 --- /dev/null +++ b/docs/core-data-structures/skills.md @@ -0,0 +1,89 @@ +# Skills + +The skill stack is split across two core packages: the service ([dsh-skill](../../packages/core/skill), `ctx.skills`) discovers and parses local `SKILL.md` instructions, injects a stable request-time listing, and exposes full skill bodies on demand; the consumer ([dsh-tool-skill](../../packages/core/tool-skill), model-facing `skill`) loads one complete body for progressive disclosure. Skills are optional instructions, not session events, so their vocabulary lives here rather than in [core.md](core.md). + +Source: [`packages/core/skill/src/index.ts`](../../packages/core/skill/src/index.ts) and [`packages/core/tool-skill/src/index.ts`](../../packages/core/tool-skill/src/index.ts). + +## Discovery priority + +For a request with a cwd, `ctx.skills` finds the nearest git root and scans roots in first-wins order: + +| Priority | Source | Root | +|---|---|---| +| 1 | `project-dsh` | `/.dsh/skills` | +| 2 | `project-agents` | `/.agents/skills` | +| 3 | `runtime` | `ctx.skills.register(...)` | +| 4 | `user-dsh` | `~/.dsh/skills` | +| 5 | `user-agents` | `~/.agents/skills` | +| 6 | `extra` | `Config.extraRoots` | +| 7 | `system` | `~/.dsh/skills/.system` | + +The user DSH root skips its `.system` child during normal scanning so built-in skills are discovered exactly once. Same-name skills keep the highest-priority copy and log a warning for later duplicates. After this priority pass, model-visible summaries are sorted by `name` before prompt rendering so the `## Skills` fragment is deterministic and friendly to provider prefix caches. + +## Skill identity + +Skill names are kebab-case (`^[a-z0-9]+(?:-[a-z0-9]+)*$`). A skill can be a directory bundle (`/SKILL.md`) or a flat Markdown file (`.md`). Nested recursive `**/SKILL.md` discovery is intentionally outside v1. + +```ts type-equiv +type SkillSource = 'project-dsh' | 'project-agents' | 'runtime' | 'user-dsh' | 'user-agents' | 'extra' | 'system' +``` + +## Summaries and complete definitions + +`SkillSummary` is the model-visible shape: the request prompt gets the name, source, description, and optional routing hint, but never the body or absolute file path. `disableModelInvocation` hides a skill from listings while allowing trusted code to load it by name. + +```ts type-equiv +interface SkillSummary { + name: string + description: string + whenToUse?: string + disableModelInvocation?: boolean + directory: string + source: SkillSource +} +``` + +`SkillDefinition` is the complete parsed result returned by `ctx.skills.get()` and used by the `skill` tool. `directory` is the base directory for resolving relative references in the skill body; `path` is present for disk skills; `metadata` preserves optional frontmatter for future consumers without changing v1 routing behavior. + +```ts type-equiv +interface SkillDefinition extends SkillSummary { + content: string + path?: string + metadata?: Record +} +``` + +Runtime skills use the same complete shape and participate in the same first-wins collection order. The returned disposer removes the contribution and invalidates discovery caches. + +```ts type-equiv +type SkillRegistration = Omit & { + disableModelInvocation?: boolean +} +``` + +## Lookup and configuration + +Skill lookup is cwd-sensitive because project skill roots are relative to the current workspace. If no git root is found, the supplied cwd itself is the project root. + +```ts type-equiv +interface SkillLookupOptions { + cwd?: string | undefined +} +``` + +The service can be pointed at alternate user roots in tests or deployments. `installSystemSkills` controls whether bundled system skills are materialized under `/skills/.system` on startup. + +```ts type-equiv +interface Config { + dshHome?: string + agentsHome?: string + extraRoots?: string[] + installSystemSkills?: boolean +} +``` + +## Prompt and tool contract + +`ctx.skills.renderModelListing()` returns a `## Skills` fragment wrapped in ``. Descriptions and `whenToUse` are whitespace-normalized, length-capped, and XML-escaped before rendering. The listing is appended to the same `GenerateOptions.system` string by the `agent/request` waterfall, after the base system prompt is assembled. + +The model-facing `skill({ name })` tool validates the kebab-case name, loads the complete definition for the calling agent cwd, rejects unknown or `disableModelInvocation` skills, and returns a `` block with the body plus base-directory and relative-path guidance. The tool result is the only v1 path that exposes full skill instructions to the model. diff --git a/docs/rfc/README.md b/docs/rfc/README.md index 9633691cf7..8343b877c7 100644 --- a/docs/rfc/README.md +++ b/docs/rfc/README.md @@ -95,6 +95,7 @@ Do NOT write one for a mechanical or local choice (a variable name, a one-file r | [dsh-hook-protocol — the shared Claude Code / Codex hook wire-protocol core](implemented/feature/2026-06-30-hook-protocol-lib.md) | 2026-06-30 | | [Interception seams — the typed-Decision surface a hook programs against](implemented/feature/2026-06-30-interception-seams.md) | 2026-06-30 | | [Subagent lifecycle enrichment — lastAssistantMessage (observe-only)](implemented/feature/2026-06-30-subagent-observe-enrich.md) | 2026-06-30 | +| [Skill system — progressive disclosure instructions for agents](implemented/feature/2026-07-05-skill-system.md) | 2026-07-05 | ### Simplification diff --git a/docs/rfc/implemented/feature/2026-07-05-skill-system.md b/docs/rfc/implemented/feature/2026-07-05-skill-system.md new file mode 100644 index 0000000000..eea4ac91ae --- /dev/null +++ b/docs/rfc/implemented/feature/2026-07-05-skill-system.md @@ -0,0 +1,45 @@ +# Skill system — progressive disclosure instructions for agents + +## Status + +Implemented. + +## Context + +Agent products have converged on a skill pattern: keep the request prompt small by listing only available instruction bundles, then load the full body when the model decides a task matches. Codex, Claude Code, OpenCode, and Kimi Code differ in details, but all separate discovery metadata from complete instructions so a workspace can carry reusable behavior without paying the full prompt cost on every turn. + +DeepSeek Harness needs the same primitive because project-specific review, plugin-authoring, and tool-usage guidance should live next to the workspace or the user's agent configuration instead of being hard-coded into the loop. The repo is still unreleased, so this change establishes the foundation directly as first-class packages rather than a compatibility layer around an older format. + +## Decision + +Add `@deepseek-ai/dsh-skill` as the discovery service (`ctx.skills`) and `@deepseek-ai/dsh-tool-skill` as the model-facing loader tool. `dsh-agent-core` loads both by default so stdio and ACP apps get the same behavior. + +Discovery scans cwd-sensitive project roots, runtime registrations, user roots, extra roots, and system roots in first-wins priority order: project `.dsh`, project `.agents`, runtime, user `.dsh`, user `.agents`, extra roots, then `~/.dsh/skills/.system`. The user `.dsh/skills` scan skips `.system` so built-ins are not discovered twice. Same-name lower-priority skills are ignored with a warning, which lets project and user skills override built-ins deliberately. + +Each skill is either `/SKILL.md` or `.md` with YAML frontmatter. `name` and `description` are required; `whenToUse`, `disableModelInvocation`, and `metadata` are optional. Names are kebab-case. YAML frontmatter is parsed with the `yaml` package instead of a hand-written parser because the format already exposes an open `metadata` object and should behave like ordinary skill files rather than a bespoke key/value subset. + +The service injects a request-time `## Skills` fragment through the existing `agent/request` waterfall. It appends to `GenerateOptions.system` instead of changing `systemPrompt.assemble()`, because the available project skills depend on the calling agent's cwd. The fragment contains only stable routing metadata and is sorted by skill name after first-wins collection, so equivalent workspaces produce deterministic prompt text and better prefix-cache reuse. Full skill bodies are never included in the listing. + +The `skill({ name })` tool loads one full skill for the current agent cwd and returns a `` block with the body plus base-directory guidance. Invalid names, unknown skills, and skills marked `disableModelInvocation` return tool errors. v1 does not additionally inject the loaded body into session context; the tool result is the model-visible disclosure path. + +System skills are ordinary skill files materialized under `~/.dsh/skills/.system` on startup. v1 ships `dsh-plugin-creator` and `dsh-skill-creator` there so the agent can help author DeepSeek Harness plugins and future skills using the same mechanism users can override. + +The data structures and prompt/tool contract are documented in [skills.md](../../../core-data-structures/skills.md), with service signatures in the generated [services catalog](../../../cordis-catalog/services.md). + +## Rejected alternatives + +**Inject full skill bodies into every system prompt.** Rejected because it destroys progressive disclosure and makes every request pay for instructions that may not apply. + +**Expose skills only as slash commands.** Rejected for v1 because model-initiated loading is the core capability; slash/ACP command advertisement can layer on later without changing discovery. + +**Use a separate system-reminder message.** Rejected for the current loop because `agent/request` already owns the last mutation point before the adapter call and `GenerateOptions.system` is the provider-neutral system prompt surface. A later provider-specific surface can still split this fragment if needed. + +**Recursively discover nested `**/SKILL.md`.** Rejected for v1. Flat files and one-level directory bundles cover the configured roots while keeping duplicate handling and prompt order easy to reason about. + +**Hand-parse frontmatter.** Rejected because the accepted schema includes an open `metadata` object. A narrow parser would either reject valid YAML users expect to work or grow into an unreviewed YAML subset. + +## Consequences + +The agent-core spine now includes one more request-time contributor and one more model-facing tool. Skill discovery is cwd-sensitive, so tests and callers that create agents with different session cwd values can observe different project skill overrides by design. + +The prompt fragment is deterministic for a fixed root set and runtime registration revision, but disk changes are not watched; discovery is memoized until runtime registration invalidates the cache or the process restarts. That keeps v1 simple and avoids adding file watching policy before there is a concrete user flow for hot-reloading skills. diff --git a/packages/core/skill/src/index.ts b/packages/core/skill/src/index.ts index 1d1707c722..ace0d9f6eb 100644 --- a/packages/core/skill/src/index.ts +++ b/packages/core/skill/src/index.ts @@ -25,31 +25,46 @@ export function isSkillName(name: string): boolean { return SKILL_NAME.test(name) } +/** Origin bucket for a discovered skill. The value is prompt-visible metadata, not part of precedence by itself. */ export type SkillSource = 'project-dsh' | 'project-agents' | 'runtime' | 'user-dsh' | 'user-agents' | 'extra' | 'system' +/** Model-visible skill metadata returned by `ctx.skills.list()` and rendered into the request prompt. */ export interface SkillSummary { + /** Kebab-case identifier used with the `skill` tool. */ name: string + /** Short routing description shown to the model. */ description: string + /** Optional extra routing guidance shown to the model. */ whenToUse?: string + /** Whether the skill is hidden from model listings while remaining loadable by trusted callers. */ disableModelInvocation?: boolean + /** Base directory for resolving skill-relative references. */ directory: string + /** Discovery source that produced this winning skill. */ source: SkillSource } +/** Complete parsed skill definition, including the body loaded by `ctx.skills.get()`. */ export interface SkillDefinition extends SkillSummary { + /** Markdown instruction body after frontmatter removal. */ content: string + /** Absolute file path when the skill came from disk; runtime skills may omit it. */ path?: string + /** Parsed optional metadata object from frontmatter. */ metadata?: Record } +/** Runtime skill contribution accepted by `ctx.skills.register()`. */ export type SkillRegistration = Omit & { disableModelInvocation?: boolean } +/** Workspace selector used for cwd-sensitive project-root discovery. */ export interface SkillLookupOptions { cwd?: string | undefined } +/** Skill plugin configuration. */ export interface Config { /** DeepSeek Harness config root. Defaults to `$DSH_HOME` or `~/.dsh`. */ dshHome?: string diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index b1c3163782..13712d872c 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -62,6 +62,13 @@ { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FsPolicyExec", "source": "packages/fs/fs-policy/src/types.ts" }, { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FileReadOutcome", "source": "packages/fs/tool-fs/src/read-render.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillSource", "source": "packages/core/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillSummary", "source": "packages/core/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillDefinition", "source": "packages/core/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillRegistration", "source": "packages/core/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillLookupOptions", "source": "packages/core/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "Config", "source": "packages/core/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/compaction.md", "symbol": "CompactionResult", "source": "packages/compact/compact/src/types.ts" }, { "doc": "docs/core-data-structures/subagent.md", "symbol": "SubagentCapabilities", "source": "packages/subagent/subagent/src/types.ts" }, From 0bf50d3469ec464db9e41e88f056c0aa98365e60 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Sun, 5 Jul 2026 17:10:42 +0800 Subject: [PATCH 010/232] test: wire user interaction in stdio readline spec --- packages/ui/stdio-agent/tests/readline.spec.ts | 1 + 1 file changed, 1 insertion(+) diff --git a/packages/ui/stdio-agent/tests/readline.spec.ts b/packages/ui/stdio-agent/tests/readline.spec.ts index ae3c480756..a958c435c1 100644 --- a/packages/ui/stdio-agent/tests/readline.spec.ts +++ b/packages/ui/stdio-agent/tests/readline.spec.ts @@ -19,6 +19,7 @@ function fakeContext(): Context { // The UI seeds its label map from the registry at install; this suite only // exercises readline terminal-mode selection, so an empty roster suffices. agents: { list: vi.fn(() => []) }, + userInteraction: { registerProvider: vi.fn(() => vi.fn()) }, } as unknown as Context } From dca2cc257db87d7c1e44bb36cebbd5aa76728a29 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Sun, 5 Jul 2026 18:33:27 +0800 Subject: [PATCH 011/232] fix: harden skill discovery --- docs/cordis-catalog/services.md | 2 +- docs/core-data-structures/skills.md | 2 + examples/acp-agent/tests/acp.e2e.ts | 19 +- examples/acp-agent/tests/acp.snapshot.ts | 1 + examples/acp-agent/tests/snapshot-harness.ts | 2 + .../tests/snapshots/skill-load/input.json | 7 + .../snapshots/skill-load/replay.override.json | 28 +++ .../tests/snapshots/skill-load/session.jsonl | 28 +++ .../snapshots/skill-load/stdout.golden.jsonl | 8 + .../coding-agent/tests/keyless-smoke.e2e.ts | 2 + examples/echo-agent/tests/echo.e2e.ts | 11 +- packages/core/agent-core/package.json | 3 +- packages/core/agent-core/src/index.ts | 47 +++- .../core/agent-core/tests/agent-core.spec.ts | 22 ++ packages/core/agent-core/tsconfig.json | 3 + packages/core/skill/README.md | 11 + packages/core/skill/package.json | 1 + packages/core/skill/src/index.ts | 119 ++++++++--- packages/core/skill/tests/skill.spec.ts | 200 ++++++++++++++++-- packages/core/skill/tsconfig.json | 1 + packages/ui/acp-agent/src/index.ts | 14 +- packages/ui/acp-agent/tests/acp-agent.spec.ts | 18 +- packages/ui/acp-agent/tests/built-bin.e2e.ts | 14 +- packages/ui/acp-agent/tests/load-path.e2e.ts | 2 + packages/ui/stdio-agent/src/index.ts | 13 ++ .../ui/stdio-agent/tests/built-bin.e2e.ts | 2 +- .../ui/stdio-agent/tests/stdio-agent.spec.ts | 19 +- pnpm-lock.yaml | 6 + vitest.config.ts | 11 + 29 files changed, 555 insertions(+), 61 deletions(-) create mode 100644 examples/acp-agent/tests/snapshots/skill-load/input.json create mode 100644 examples/acp-agent/tests/snapshots/skill-load/replay.override.json create mode 100644 examples/acp-agent/tests/snapshots/skill-load/session.jsonl create mode 100644 examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index fd2eb68161..066bc09b6a 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -176,7 +176,7 @@ async get(name: string, options: SkillLookupOptions = {}): Promise ``` -Source: [`packages/core/skill/src/index.ts:128`](../../packages/core/skill/src/index.ts) +Source: [`packages/core/skill/src/index.ts:132`](../../packages/core/skill/src/index.ts) ## `ctx.subagents` — `SubagentService` diff --git a/docs/core-data-structures/skills.md b/docs/core-data-structures/skills.md index 930bc9f636..a7eabacf2d 100644 --- a/docs/core-data-structures/skills.md +++ b/docs/core-data-structures/skills.md @@ -79,6 +79,8 @@ interface Config { agentsHome?: string extraRoots?: string[] installSystemSkills?: boolean + promptFieldMaxLength?: number + collectCacheMaxEntries?: number } ``` diff --git a/examples/acp-agent/tests/acp.e2e.ts b/examples/acp-agent/tests/acp.e2e.ts index 06ef962743..6c875c1db3 100644 --- a/examples/acp-agent/tests/acp.e2e.ts +++ b/examples/acp-agent/tests/acp.e2e.ts @@ -63,7 +63,16 @@ function spawnAcpAgent(cwd: string, env: NodeJS.ProcessEnv = process.env): Spawn const child = spawn( process.execPath, ['--import', tsxLoader, binScript, configPath], - { cwd, env: { ...env, TSX_TSCONFIG_PATH: repoTsconfig }, stdio: ['pipe', 'pipe', 'pipe'] }, + { + cwd, + env: { + ...env, + TSX_TSCONFIG_PATH: repoTsconfig, + DSH_HOME: join(cwd, '.dsh'), + DSH_AGENTS_HOME: join(cwd, '.agents'), + }, + stdio: ['pipe', 'pipe', 'pipe'], + }, ) const stderr: string[] = [] child.stderr.setEncoding('utf8') @@ -110,7 +119,13 @@ describe('acp-agent over real stdio (no key required)', () => { // which this purity test never triggers). So this runs WITHOUT real creds. const child = spawn(process.execPath, ['--import', tsxLoader, binScript, configPath], { cwd: workdir, - env: { ...process.env, DEEPSEEK_API_KEY: process.env.DEEPSEEK_API_KEY ?? 'sk-dummy-for-boot', TSX_TSCONFIG_PATH: repoTsconfig }, + env: { + ...process.env, + DEEPSEEK_API_KEY: process.env.DEEPSEEK_API_KEY ?? 'sk-dummy-for-boot', + TSX_TSCONFIG_PATH: repoTsconfig, + DSH_HOME: join(workdir, '.dsh'), + DSH_AGENTS_HOME: join(workdir, '.agents'), + }, stdio: ['pipe', 'pipe', 'pipe'], }) const out: string[] = [] diff --git a/examples/acp-agent/tests/acp.snapshot.ts b/examples/acp-agent/tests/acp.snapshot.ts index 65d2dee9da..7f1ca8b578 100644 --- a/examples/acp-agent/tests/acp.snapshot.ts +++ b/examples/acp-agent/tests/acp.snapshot.ts @@ -64,6 +64,7 @@ const SCENARIOS: Scenario[] = [ { name: 'tool-call-turn', hasModelTurn: true, recorded: true }, { name: 'fs-terminal-card', hasModelTurn: true, recorded: true }, { name: 'todo-plan', hasModelTurn: true, recorded: true }, + { name: 'skill-load', hasModelTurn: true, recorded: false }, { name: 'workspace-edit', hasModelTurn: true, recorded: true }, { name: 'fs-read', hasModelTurn: true, recorded: true }, { name: 'fs-write', hasModelTurn: true, recorded: true }, diff --git a/examples/acp-agent/tests/snapshot-harness.ts b/examples/acp-agent/tests/snapshot-harness.ts index 8285b870bf..128857d4b7 100644 --- a/examples/acp-agent/tests/snapshot-harness.ts +++ b/examples/acp-agent/tests/snapshot-harness.ts @@ -155,6 +155,8 @@ export async function runScenario(input: InputScript, opts: RunOptions): Promise DSH_SNAPSHOT: opts.mode, DSH_SNAPSHOT_FILE: opts.fixtureFile, DSH_SNAPSHOT_SESSIONS_ROOT: sessionsRoot, + DSH_HOME: join(cwd, '.dsh'), + DSH_AGENTS_HOME: join(cwd, '.agents'), ...opts.overrideFile !== undefined ? { DSH_SNAPSHOT_OVERRIDE: opts.overrideFile } : {}, ...opts.childFiles !== undefined && opts.childFiles.length > 0 ? { DSH_SNAPSHOT_CHILD_FILES: opts.childFiles.join(delimiter) } diff --git a/examples/acp-agent/tests/snapshots/skill-load/input.json b/examples/acp-agent/tests/snapshots/skill-load/input.json new file mode 100644 index 0000000000..f1bc38d5fb --- /dev/null +++ b/examples/acp-agent/tests/snapshots/skill-load/input.json @@ -0,0 +1,7 @@ +{ + "steps": [ + { "op": "initialize" }, + { "op": "newSession" }, + { "op": "prompt", "text": "Load the dsh-skill-creator skill with the skill tool, then reply DONE." } + ] +} diff --git a/examples/acp-agent/tests/snapshots/skill-load/replay.override.json b/examples/acp-agent/tests/snapshots/skill-load/replay.override.json new file mode 100644 index 0000000000..b79d212caa --- /dev/null +++ b/examples/acp-agent/tests/snapshots/skill-load/replay.override.json @@ -0,0 +1,28 @@ +[ + { + "kind": "chunks", + "chunks": [ + { "type": "block-start", "index": 0, "blockType": "reasoning" }, + { "type": "reasoning-delta", "index": 0, "text": "Load the requested skill." }, + { "type": "block-start", "index": 1, "blockType": "tool-call" }, + { "type": "tool-call-delta", "index": 1, "id": "call_skill_load", "name": "skill", "argumentsDelta": "{\"name\":\"dsh-skill-creator\"}" }, + { "type": "block-end", "index": 0, "block": { "type": "reasoning", "text": "Load the requested skill." } }, + { "type": "block-end", "index": 1, "block": { "type": "tool-call", "id": "call_skill_load", "name": "skill", "arguments": "{\"name\":\"dsh-skill-creator\"}" } }, + { "type": "usage", "usage": { "inputTokens": 100, "outputTokens": 20, "cacheReadTokens": 0, "reasoningTokens": 5 } }, + { "type": "finish", "reason": { "kind": "tool-calls" } } + ] + }, + { + "kind": "chunks", + "chunks": [ + { "type": "block-start", "index": 0, "blockType": "reasoning" }, + { "type": "reasoning-delta", "index": 0, "text": "The skill is loaded." }, + { "type": "block-start", "index": 1, "blockType": "text" }, + { "type": "text-delta", "index": 1, "text": "DONE" }, + { "type": "block-end", "index": 0, "block": { "type": "reasoning", "text": "The skill is loaded." } }, + { "type": "block-end", "index": 1, "block": { "type": "text", "text": "DONE" } }, + { "type": "usage", "usage": { "inputTokens": 180, "outputTokens": 10, "cacheReadTokens": 0, "reasoningTokens": 4 } }, + { "type": "finish", "reason": { "kind": "stop" } } + ] + } +] diff --git a/examples/acp-agent/tests/snapshots/skill-load/session.jsonl b/examples/acp-agent/tests/snapshots/skill-load/session.jsonl new file mode 100644 index 0000000000..655b9568fc --- /dev/null +++ b/examples/acp-agent/tests/snapshots/skill-load/session.jsonl @@ -0,0 +1,28 @@ +{"type":"session","version":0,"id":"5ca6619f-135d-4d55-814b-35ac6524a1b2","createdAt":1783246260513,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-nJAoRn"} +{"type":"turn/start","seq":0,"time":1783246260515,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":1,"time":1783246260516,"data":{"content":[{"type":"text","text":"Load the dsh-skill-creator skill with the skill tool, then reply DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":2,"time":1783246260516,"data":{"turn":1,"step":1}} +{"type":"assistant/chunk","seq":3,"time":1783246260534,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} +{"type":"assistant/chunk","seq":4,"time":1783246260534,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"Load the requested skill."}}} +{"type":"assistant/chunk","seq":5,"time":1783246260534,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"tool-call"}}} +{"type":"assistant/chunk","seq":6,"time":1783246260534,"data":{"turn":1,"step":1,"chunk":{"type":"tool-call-delta","index":1,"id":"call_skill_load","name":"skill","argumentsDelta":"{\"name\":\"dsh-skill-creator\"}"}}} +{"type":"assistant/chunk","seq":7,"time":1783246260534,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"Load the requested skill."}}}} +{"type":"assistant/chunk","seq":8,"time":1783246260534,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"tool-call","id":"call_skill_load","name":"skill","arguments":"{\"name\":\"dsh-skill-creator\"}"}}}} +{"type":"assistant/chunk","seq":9,"time":1783246260534,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":100,"outputTokens":20,"cacheReadTokens":0,"reasoningTokens":5}}}} +{"type":"assistant/chunk","seq":10,"time":1783246260534,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}} +{"type":"assistant/message","seq":11,"time":1783246260534,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"Load the requested skill."},{"type":"tool-call","id":"call_skill_load","name":"skill","arguments":"{\"name\":\"dsh-skill-creator\"}"}],"usage":{"inputTokens":100,"outputTokens":20,"cacheReadTokens":0,"reasoningTokens":5}},"sourceEventSeqs":[3,4,5,6,7,8,9,10],"surfaceOp":"append"} +{"type":"tool/call","seq":12,"time":1783246260534,"data":{"turn":1,"step":1,"callId":"call_skill_load","name":"skill","arguments":"{\"name\":\"dsh-skill-creator\"}"}} +{"type":"tool/result","seq":13,"time":1783246260535,"data":{"turn":1,"step":1,"callId":"call_skill_load","content":[{"type":"text","text":"\n# Skill: dsh-skill-creator\n\nUse this skill to write focused DeepSeek Harness skills.\n\nA skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter.\nFrontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it.\nUse optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills.\nKeep the body procedural, evidence-oriented, and scoped to the workflow the skill owns.\n\nBase directory for this skill: /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-nJAoRn/.dsh/skills/.system/dsh-skill-creator\nResolve relative files mentioned by this skill against the base directory before using them.\n"}],"isError":false},"sourceEventSeqs":[12],"surfaceOp":"append"} +{"type":"step/end","seq":14,"time":1783246260535,"data":{"turn":1,"step":1}} +{"type":"step/start","seq":15,"time":1783246260535,"data":{"turn":1,"step":2}} +{"type":"assistant/chunk","seq":16,"time":1783246260535,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} +{"type":"assistant/chunk","seq":17,"time":1783246260535,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"The skill is loaded."}}} +{"type":"assistant/chunk","seq":18,"time":1783246260535,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":1,"blockType":"text"}}} +{"type":"assistant/chunk","seq":19,"time":1783246260535,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"DONE"}}} +{"type":"assistant/chunk","seq":20,"time":1783246260535,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The skill is loaded."}}}} +{"type":"assistant/chunk","seq":21,"time":1783246260535,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"DONE"}}}} +{"type":"assistant/chunk","seq":22,"time":1783246260535,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":180,"outputTokens":10,"cacheReadTokens":0,"reasoningTokens":4}}}} +{"type":"assistant/chunk","seq":23,"time":1783246260535,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":24,"time":1783246260536,"data":{"turn":1,"step":2,"content":[{"type":"reasoning","text":"The skill is loaded."},{"type":"text","text":"DONE"}],"usage":{"inputTokens":180,"outputTokens":10,"cacheReadTokens":0,"reasoningTokens":4}},"sourceEventSeqs":[16,17,18,19,20,21,22,23],"surfaceOp":"append"} +{"type":"step/end","seq":25,"time":1783246260536,"data":{"turn":1,"step":2}} +{"type":"turn/end","seq":26,"time":1783246260536,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl new file mode 100644 index 0000000000..bb87794d28 --- /dev/null +++ b/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl @@ -0,0 +1,8 @@ +{"jsonrpc":"2.0","id":1,"result":{"protocolVersion":1,"agentInfo":{"name":"deepseek-harness-acp","version":"0.0.1"},"agentCapabilities":{"loadSession":true,"promptCapabilities":{"image":false,"audio":false,"embeddedContext":false}},"authMethods":[]}} +{"jsonrpc":"2.0","id":2,"result":{"sessionId":"{{sessionId}}"}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"Load the requested skill."}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_skill_load","title":"Load skill dsh-skill-creator","kind":"read","status":"in_progress","rawInput":"dsh-skill-creator"}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_skill_load","status":"completed","content":[{"type":"content","content":{"type":"text","text":"\n# Skill: dsh-skill-creator\n\nUse this skill to write focused DeepSeek Harness skills.\n\nA skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter.\nFrontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it.\nUse optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills.\nKeep the body procedural, evidence-oriented, and scoped to the workflow the skill owns.\n\nBase directory for this skill: {{cwd}}/.dsh/skills/.system/dsh-skill-creator\nResolve relative files mentioned by this skill against the base directory before using them.\n"}}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The skill is loaded."}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"DONE"}}}} +{"jsonrpc":"2.0","id":3,"result":{"stopReason":"end_turn"}} diff --git a/examples/coding-agent/tests/keyless-smoke.e2e.ts b/examples/coding-agent/tests/keyless-smoke.e2e.ts index dba8b140c7..b4d73f4d90 100644 --- a/examples/coding-agent/tests/keyless-smoke.e2e.ts +++ b/examples/coding-agent/tests/keyless-smoke.e2e.ts @@ -62,6 +62,8 @@ async function bootAndEof(): Promise<{ stdout: string; code: number }> { // A dummy key so llm-deepseek's apply() (key-PRESENT check only) boots. // No prompt is sent, so the adapter never streams — no network call. DEEPSEEK_API_KEY: 'keyless-smoke-no-call', + DSH_HOME: join(cwd, '.dsh'), + DSH_AGENTS_HOME: join(cwd, '.agents'), }, stdio: ['pipe', 'pipe', 'pipe'], }, diff --git a/examples/echo-agent/tests/echo.e2e.ts b/examples/echo-agent/tests/echo.e2e.ts index 01bb34bff0..b446b2b191 100644 --- a/examples/echo-agent/tests/echo.e2e.ts +++ b/examples/echo-agent/tests/echo.e2e.ts @@ -63,7 +63,16 @@ async function runEcho(lines: string[]): Promise<{ stdout: string; code: number // requires it (mirrors the `demo:echo` script). The whole point is to boot // the example EXACTLY as it really runs, through the bin + Loader. ['--expose-internals', '--import', tsxLoader, binScript, configPath], - { cwd, env: { ...process.env, TSX_TSCONFIG_PATH: repoTsconfig }, stdio: ['pipe', 'pipe', 'pipe'] }, + { + cwd, + env: { + ...process.env, + TSX_TSCONFIG_PATH: repoTsconfig, + DSH_HOME: join(cwd, '.dsh'), + DSH_AGENTS_HOME: join(cwd, '.agents'), + }, + stdio: ['pipe', 'pipe', 'pipe'], + }, ) child = proc let stdout = '' diff --git a/packages/core/agent-core/package.json b/packages/core/agent-core/package.json index 2d01ec5900..95883af52a 100644 --- a/packages/core/agent-core/package.json +++ b/packages/core/agent-core/package.json @@ -47,6 +47,7 @@ "@deepseek-ai/dsh-tool-bash": "workspace:^", "@deepseek-ai/dsh-tool-skill": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", - "cordis": "^4.0.0-rc.6" + "cordis": "^4.0.0-rc.6", + "schemastery": "^3.18.0" } } diff --git a/packages/core/agent-core/src/index.ts b/packages/core/agent-core/src/index.ts index 47617b1308..0f8e005b56 100644 --- a/packages/core/agent-core/src/index.ts +++ b/packages/core/agent-core/src/index.ts @@ -44,11 +44,13 @@ import type { Context } from 'cordis' import Timer from '@cordisjs/plugin-timer' +import z from 'schemastery' +import type Schema from 'schemastery' import LlmService from '@deepseek-ai/dsh-llm' import SessionStore from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' -import SkillService from '@deepseek-ai/dsh-skill' +import SkillService, { type Config as SkillConfig } from '@deepseek-ai/dsh-skill' import AgentRegistry from '@deepseek-ai/dsh-agent' import * as invariants from '@deepseek-ai/dsh-invariants' import * as toolBash from '@deepseek-ai/dsh-tool-bash' @@ -58,16 +60,39 @@ import AgentLoop, { type Config as AgentLoopConfig } from '@deepseek-ai/dsh-agen export const name = 'agent-core' /** - * Bundle config: the agent-loop `agents` list, forwarded verbatim. Default `[]` - * — an app that pre-creates no agents (the ACP bridge creates them on demand at - * `session/new`) simply omits it; an app that needs a pre-created `main` (the - * stdio chat) supplies one. This IS {@link AgentLoopConfig}, so the schema and - * the forwarded shape can never drift. + * Bundle config: the agent-loop `agents` list plus skill discovery config. + * Default `agents: []` means an app that pre-creates no agents (the ACP bridge + * creates them on demand at `session/new`) can omit it; an app that needs a + * pre-created `main` (the stdio chat) supplies one. `skills` is forwarded to + * {@link @deepseek-ai/dsh-skill}, so leaf cordis.yml files can change DSH/user + * skill roots and caps without code changes. */ -export type Config = AgentLoopConfig +export interface Config extends AgentLoopConfig { + /** Skill discovery roots, system-skill installation, and prompt/cache bounds. */ + skills?: SkillConfig +} -/** Forward the loop's own schema so validation + defaulting stay identical. */ -export const Config = AgentLoop.Config +/** Local schema for the forwarded skill config. Keep this in sync with `SkillService.Config`. */ +export const SkillConfigSchema: Schema = z.object({ + dshHome: z.string(), + agentsHome: z.string(), + extraRoots: z.array(z.string()).default([]), + installSystemSkills: z.boolean().default(true), + promptFieldMaxLength: z.number().default(500), + collectCacheMaxEntries: z.number().default(128), +}) + +/** Bundle schema: keep the loop agent shape aligned and expose skill config. */ +export const Config: Schema = z.object({ + agents: z.array(z.object({ + id: z.string().required(), + model: z.string(), + systemPrompt: z.string(), + cwd: z.string(), + resumeSessionId: z.string(), + })).default([]), + skills: SkillConfigSchema, +}) as unknown as Schema /** * Load the spine. Each `ctx.plugin(...)` mounts one child of the bundle fiber; @@ -83,10 +108,12 @@ export function apply(ctx: Context, config: Config): void { ctx.plugin(SessionStore) ctx.plugin(SystemPrompt) ctx.plugin(ToolRegistry) - ctx.plugin(SkillService) + ctx.plugin(SkillService, config.skills ?? {}) ctx.plugin(AgentRegistry) ctx.plugin(invariants) ctx.plugin(toolBash) ctx.plugin(toolSkill) ctx.plugin(AgentLoop, { agents: config.agents }) } + +export type { SkillConfig } diff --git a/packages/core/agent-core/tests/agent-core.spec.ts b/packages/core/agent-core/tests/agent-core.spec.ts index 4a8954f9c6..75f0f5eef9 100644 --- a/packages/core/agent-core/tests/agent-core.spec.ts +++ b/packages/core/agent-core/tests/agent-core.spec.ts @@ -19,7 +19,9 @@ import { AgentId } from '@deepseek-ai/dsh-agent' */ async function mount(config?: agentCore.Config): Promise { const oldDshHome = process.env.DSH_HOME + const oldAgentsHome = process.env.DSH_AGENTS_HOME process.env.DSH_HOME = await mkdtemp(join(tmpdir(), 'dsh-agent-core-home-')) + process.env.DSH_AGENTS_HOME = await mkdtemp(join(tmpdir(), 'dsh-agent-core-agents-')) const ctx = new Context() try { await ctx.plugin(agentCore, config) @@ -33,6 +35,11 @@ async function mount(config?: agentCore.Config): Promise { } else { process.env.DSH_HOME = oldDshHome } + if (oldAgentsHome === undefined) { + delete process.env.DSH_AGENTS_HOME + } else { + process.env.DSH_AGENTS_HOME = oldAgentsHome + } } } @@ -78,6 +85,21 @@ describe('dsh-agent-core bundle', () => { await ctx.fiber.dispose() }) + it('forwards skill config to the skill service', async () => { + const home = await mkdtemp(join(tmpdir(), 'dsh-agent-core-skill-home-')) + const agentsHome = await mkdtemp(join(tmpdir(), 'dsh-agent-core-skill-agents-')) + const ctx = await mount({ + agents: [], + skills: { + dshHome: join(home, '.dsh'), + agentsHome: join(agentsHome, '.agents'), + installSystemSkills: false, + }, + }) + expect(await ctx.skills.list()).toEqual([]) + await ctx.fiber.dispose() + }) + it('re-exports the loop config schema as its own', () => { expect(agentCore.Config).toBeDefined() expect(agentCore.name).toBe('agent-core') diff --git a/packages/core/agent-core/tsconfig.json b/packages/core/agent-core/tsconfig.json index 6b53f62024..a4f442dc71 100644 --- a/packages/core/agent-core/tsconfig.json +++ b/packages/core/agent-core/tsconfig.json @@ -14,6 +14,9 @@ { "path": "../../../vendor/timer" }, + { + "path": "../../../vendor/schemastery" + }, { "path": "../../llm/llm" }, diff --git a/packages/core/skill/README.md b/packages/core/skill/README.md index 5fcb144adc..39deef415b 100644 --- a/packages/core/skill/README.md +++ b/packages/core/skill/README.md @@ -10,6 +10,17 @@ Agent skill discovery and model-facing skill guidance. - `ctx.skills.get(name, { cwd? })` Returns the full skill, including disabled-for-model skills. - `ctx.skills.register(skill): () => void` Registers a runtime skill, disposed with the calling fiber. +### Config + +| Field | Default | Meaning | +|---|---|---| +| `dshHome` | `$DSH_HOME` or `~/.dsh` | DeepSeek Harness config root; system skills live under `skills/.system`. | +| `agentsHome` | `$DSH_AGENTS_HOME` or `~/.agents` | Shared agent config root scanned for compatible skills. | +| `extraRoots` | `[]` | Additional skill roots scanned after user roots and before system skills. | +| `installSystemSkills` | `true` | Whether startup materializes bundled system skills under `dshHome`. | +| `promptFieldMaxLength` | `500` | Maximum rendered `description` / `whenToUse` length in the prompt listing. | +| `collectCacheMaxEntries` | `128` | Maximum cwd/root discovery promises kept in memory. | + ### Discovery Default roots are resolved in this conflict priority order: diff --git a/packages/core/skill/package.json b/packages/core/skill/package.json index 89deaffa04..9bca3c1a24 100644 --- a/packages/core/skill/package.json +++ b/packages/core/skill/package.json @@ -28,6 +28,7 @@ "cordis": "^4.0.0-rc.6" }, "dependencies": { + "schemastery": "^3.18.0", "yaml": "^2.4.2" }, "devDependencies": { diff --git a/packages/core/skill/src/index.ts b/packages/core/skill/src/index.ts index ace0d9f6eb..39c656eac8 100644 --- a/packages/core/skill/src/index.ts +++ b/packages/core/skill/src/index.ts @@ -8,18 +8,20 @@ * @module @deepseek-ai/dsh-skill */ -import { access, mkdir, readdir, readFile, writeFile } from 'node:fs/promises' +import { access, mkdir, readdir, readFile, stat, writeFile } from 'node:fs/promises' import { dirname, join, resolve } from 'node:path' import { homedir } from 'node:os' import { Context, Service } from 'cordis' +import z from 'schemastery' +import type Schema from 'schemastery' import { parse as parseYaml } from 'yaml' import type { FileSystem, FsTarget } from '@deepseek-ai/dsh-fs' import type { GenerateOptions } from '@deepseek-ai/dsh-llm' import type {} from '@deepseek-ai/dsh-agent' const SKILL_NAME = /^[a-z0-9]+(?:-[a-z0-9]+)*$/ -const MAX_PROMPT_FIELD_LENGTH = 500 -const MAX_COLLECT_CACHE_ENTRIES = 128 +const DEFAULT_PROMPT_FIELD_LENGTH = 500 +const DEFAULT_COLLECT_CACHE_ENTRIES = 128 export function isSkillName(name: string): boolean { return SKILL_NAME.test(name) @@ -55,9 +57,7 @@ export interface SkillDefinition extends SkillSummary { } /** Runtime skill contribution accepted by `ctx.skills.register()`. */ -export type SkillRegistration = Omit & { - disableModelInvocation?: boolean -} +export type SkillRegistration = Omit & { disableModelInvocation?: boolean } /** Workspace selector used for cwd-sensitive project-root discovery. */ export interface SkillLookupOptions { @@ -68,12 +68,16 @@ export interface SkillLookupOptions { export interface Config { /** DeepSeek Harness config root. Defaults to `$DSH_HOME` or `~/.dsh`. */ dshHome?: string - /** Shared agent config root. Defaults to `~/.agents`. */ + /** Shared agent config root. Defaults to `$DSH_AGENTS_HOME` or `~/.agents`. */ agentsHome?: string /** Extra skill roots, scanned after user roots and before system skills. */ extraRoots?: string[] /** Ensure bundled system skills exist under `/skills/.system`. Defaults true. */ installSystemSkills?: boolean + /** Maximum rendered description/whenToUse length in the prompt listing. */ + promptFieldMaxLength?: number + /** Maximum number of cwd/root discovery promises kept in the in-memory cache. */ + collectCacheMaxEntries?: number } declare module 'cordis' { @@ -126,10 +130,21 @@ const SYSTEM_SKILLS: SkillDefinition[] = [ * stable `## Skills` listing into each agent request. */ export class SkillService extends Service { + static Config: Schema = z.object({ + dshHome: z.string(), + agentsHome: z.string(), + extraRoots: z.array(z.string()).default([]), + installSystemSkills: z.boolean().default(true), + promptFieldMaxLength: z.number().default(DEFAULT_PROMPT_FIELD_LENGTH), + collectCacheMaxEntries: z.number().default(DEFAULT_COLLECT_CACHE_ENTRIES), + }) + private readonly dshHome: string private readonly agentsHome: string private readonly extraRoots: string[] private readonly installSystemSkills: boolean + private readonly promptFieldMaxLength: number + private readonly collectCacheMaxEntries: number private readonly runtime = new Map() private readonly collectCache = new Map>() private runtimeRevision = 0 @@ -138,9 +153,13 @@ export class SkillService extends Service { constructor(ctx: Context, config: Config = {}) { super(ctx, 'skills') this.dshHome = resolve(config.dshHome ?? process.env.DSH_HOME ?? join(homedir(), '.dsh')) - this.agentsHome = resolve(config.agentsHome ?? join(homedir(), '.agents')) + this.agentsHome = resolve(config.agentsHome ?? process.env.DSH_AGENTS_HOME ?? join(homedir(), '.agents')) this.extraRoots = (config.extraRoots ?? []).map(root => resolve(root)) this.installSystemSkills = config.installSystemSkills ?? true + this.promptFieldMaxLength = config.promptFieldMaxLength ?? DEFAULT_PROMPT_FIELD_LENGTH + this.collectCacheMaxEntries = config.collectCacheMaxEntries ?? DEFAULT_COLLECT_CACHE_ENTRIES + assertPositiveInteger('promptFieldMaxLength', this.promptFieldMaxLength) + assertPositiveInteger('collectCacheMaxEntries', this.collectCacheMaxEntries) if (this.installSystemSkills) { const systemRoot = join(this.dshHome, 'skills/.system') this.systemReady = writeSystemSkills(systemRoot, this.ctx).catch((error: unknown) => { @@ -208,8 +227,8 @@ export class SkillService extends Service { const entries = skills.map((skill) => { const lines = [ ``, - `description: ${promptLine(skill.description)}`, - ...skill.whenToUse ? [`whenToUse: ${promptLine(skill.whenToUse)}`] : [], + `description: ${promptLine(skill.description, this.promptFieldMaxLength)}`, + ...skill.whenToUse ? [`whenToUse: ${promptLine(skill.whenToUse, this.promptFieldMaxLength)}`] : [], '', ] return lines.join('\n') @@ -231,12 +250,16 @@ export class SkillService extends Service { if (cached !== undefined) return cached const collected = this.collectFresh(roots) - this.collectCache.set(key, collected) - if (this.collectCache.size > MAX_COLLECT_CACHE_ENTRIES) { + const cachedPromise = collected.catch((error: unknown) => { + this.collectCache.delete(key) + throw error + }) + this.collectCache.set(key, cachedPromise) + if (this.collectCache.size > this.collectCacheMaxEntries) { const oldest = this.collectCache.keys().next() as IteratorYieldResult this.collectCache.delete(oldest.value) } - return collected + return cachedPromise } private async collectFresh(roots: { project: SkillRoot[]; shared: SkillRoot[] }): Promise { @@ -326,9 +349,10 @@ async function discoverRoot(root: SkillRoot, ctx: Context): Promise a.name.localeCompare(b.name))) { if (root.skipSystem && entry.name === '.system') continue const fullPath = join(root.path, entry.name) - const parsed = entry.isDirectory() + const kind = await entryKind(fullPath, entry, ctx) + const parsed = kind === 'directory' ? await parseSkillFile(join(fullPath, 'SKILL.md'), fullPath, root.source, ctx) - : entry.isFile() && entry.name.endsWith('.md') + : kind === 'file' && entry.name.endsWith('.md') ? await parseSkillFile(fullPath, root.path, root.source, ctx) : undefined if (parsed) skills.push(parsed) @@ -341,7 +365,13 @@ async function parseSkillFile(path: string, directory: string, source: SkillSour if (raw === undefined) { return undefined } - const parsed = parseFrontmatter(raw) + let parsed + try { + parsed = parseFrontmatter(raw) + } catch (error) { + ctx.logger.warn(`skill file ${path} ignored: invalid YAML frontmatter: ${errorMessage(error)}`) + return undefined + } if (!parsed) { ctx.logger.warn(`skill file ${path} ignored: missing YAML frontmatter`) return undefined @@ -426,15 +456,48 @@ function fsReadErrorMessage(target: FsTarget, error: unknown): string { return `failed to read text file at ${target.displayPath}: ${errorMessage(error)}` } +async function entryKind(fullPath: string, entry: { isDirectory(): boolean; isFile(): boolean; isSymbolicLink(): boolean }, ctx: Context): Promise<'directory' | 'file' | undefined> { + if (entry.isDirectory()) return 'directory' + if (entry.isFile()) return 'file' + /* v8 ignore next -- Non-file directory entries such as FIFOs are platform-specific and intentionally skipped. */ + if (!entry.isSymbolicLink()) return undefined + try { + const info = await stat(fullPath) + if (info.isDirectory()) return 'directory' + if (info.isFile()) return 'file' + return undefined + } catch (error) { + ctx.logger.warn(`skill entry ${fullPath} ignored: failed to follow symbolic link: ${errorMessage(error)}`) + return undefined + } +} + function parseFrontmatter(raw: string): { data: Record; body: string } | undefined { - if (!raw.startsWith('---\n')) return undefined - const end = raw.indexOf('\n---', 4) - if (end < 0) return undefined - const yaml = raw.slice(4, end) + const firstLineEnd = raw.indexOf('\n') + if (firstLineEnd < 0) return undefined + const firstLine = raw.slice(0, firstLineEnd).replace(/\r$/, '') + if (firstLine !== '---') return undefined + const start = firstLineEnd + 1 + const closing = findClosingFrontmatter(raw, start) + if (closing === undefined) return undefined + const yaml = raw.slice(start, closing.start) const parsed = parseYaml(yaml) as unknown if (typeof parsed !== 'object' || parsed === null || Array.isArray(parsed)) return undefined - const body = raw.slice(end + 4) - return { data: parsed as Record, body: body.startsWith('\n') ? body.slice(1) : body } + return { data: parsed as Record, body: raw.slice(closing.bodyStart) } +} + +function findClosingFrontmatter(raw: string, start: number): { start: number; bodyStart: number } | undefined { + let lineStart = start + while (lineStart <= raw.length) { + const nextNewline = raw.indexOf('\n', lineStart) + const lineEnd = nextNewline < 0 ? raw.length : nextNewline + const line = raw.slice(lineStart, lineEnd).replace(/\r$/, '') + if (line === '---') { + return { start: lineStart, bodyStart: nextNewline < 0 ? raw.length : nextNewline + 1 } + } + if (nextNewline < 0) return undefined + lineStart = nextNewline + 1 + } } async function findProjectRoot(cwd: string): Promise { @@ -474,14 +537,20 @@ function compareSummary(left: SkillSummary, right: SkillSummary): number { return left.name.localeCompare(right.name) } -function promptLine(value: string): string { +function promptLine(value: string, maxLength: number): string { const normalized = value.replaceAll(/\s+/g, ' ').trim() - const truncated = normalized.length <= MAX_PROMPT_FIELD_LENGTH + const truncated = normalized.length <= maxLength ? normalized - : `${normalized.slice(0, MAX_PROMPT_FIELD_LENGTH - 3)}...` + : `${normalized.slice(0, maxLength - 3)}...` return escapeText(truncated) } +function assertPositiveInteger(name: string, value: number): void { + if (!Number.isInteger(value) || value < 1) { + throw new Error(`skill: ${name} must be a positive integer`) + } +} + function stringField(data: Record, key: string): string | undefined { const value = data[key] return typeof value === 'string' && value.length > 0 ? value : undefined diff --git a/packages/core/skill/tests/skill.spec.ts b/packages/core/skill/tests/skill.spec.ts index a500fd02a1..8fdb6116ed 100644 --- a/packages/core/skill/tests/skill.spec.ts +++ b/packages/core/skill/tests/skill.spec.ts @@ -1,10 +1,10 @@ import { describe, expect, it } from 'vitest' -import { mkdir, readFile, writeFile } from 'node:fs/promises' -import { join } from 'node:path' +import { mkdir, readFile, symlink, writeFile } from 'node:fs/promises' +import { dirname, join } from 'node:path' import { tmpdir } from 'node:os' import { Context } from 'cordis' import SkillService from '@deepseek-ai/dsh-skill' -import LocalFileSystem from '@deepseek-ai/dsh-fs-local' +import { FileSystem, FsVersion, type FsEditOutcome, type FsEditRequest, type FsInfo, type FsTarget, type FsWriteOutcome } from '@deepseek-ai/dsh-fs' async function tempDir(name: string): Promise { return await import('node:fs/promises').then(fs => fs.mkdtemp(join(tmpdir(), `dsh-${name}-`))) @@ -21,6 +21,50 @@ async function writeFlatSkill(root: string, name: string, description: string, b await writeFile(join(root, `${name}.md`), `---\nname: ${name}\ndescription: ${description}\n---\n\n${body}\n`) } +class TestFileSystem extends FileSystem { + override async resolve(path: string): Promise { + return { targetKey: path as never, displayPath: path } + } + + override async stat(target: FsTarget): Promise { + try { + const fs = await import('node:fs/promises') + const info = await fs.stat(target.displayPath) + return { + version: FsVersion(String(info.mtimeMs)), + type: info.isFile() ? 'file' : info.isDirectory() ? 'directory' : 'other', + size: info.size, + } + } catch { + return undefined + } + } + + override async readText(target: FsTarget): Promise { + const text = await readFile(target.displayPath, 'utf8') + if (text.includes('\uFFFD')) throw new Error('not text') + return text + } + + override async streamText(_target: FsTarget): Promise> { + throw new Error('not needed in skill tests') + } + + override async listDir(): Promise { + throw new Error('not needed in skill tests') + } + + override async writeText(target: FsTarget, content: string): Promise { + await mkdir(dirname(target.displayPath), { recursive: true }) + await writeFile(target.displayPath, content) + return { operation: 'create', version: FsVersion('test'), before: null, after: content } + } + + override async editText(_target: FsTarget, _request: FsEditRequest): Promise { + throw new Error('not needed in skill tests') + } +} + describe('SkillService', () => { it('discovers project, user, agents, and system skill roots in priority order', async () => { const home = await tempDir('skill-home') @@ -113,6 +157,7 @@ describe('SkillService', () => { await writeFile(join(home, '.dsh/skills/bad.md'), '---\nname: Bad_Name\ndescription: bad\n---\n\nbad') await writeFile(join(home, '.dsh/skills/missing-description.md'), '---\nname: missing-description\n---\n\nbad') await writeFile(join(home, '.dsh/skills/no-frontmatter.md'), 'No frontmatter.') + await writeFile(join(home, '.dsh/skills/plain-markdown.md'), '# Notes\nNot a skill.') await writeFile(join(home, '.dsh/skills/open-frontmatter.md'), '---\nname: open-frontmatter') await writeFile(join(home, '.dsh/skills/non-object.md'), '---\n[]\n---\n\nbad') await writeFile(join(home, '.dsh/skills/no-trailing-body.md'), '---\nname: no-trailing-body\ndescription: No trailing body\n---') @@ -129,22 +174,141 @@ describe('SkillService', () => { expect(await ctx.skills.get('Bad_Name')).toBeUndefined() }) - it('keeps skill body text that begins immediately after the closing frontmatter delimiter', async () => { - const home = await tempDir('skill-frontmatter-body') + it('supports CRLF frontmatter and ignores delimiter-looking text inside YAML values', async () => { + const home = await tempDir('skill-frontmatter-crlf') const root = join(home, '.dsh/skills') await mkdir(root, { recursive: true }) - await writeFile(join(root, 'tight-body.md'), [ + await writeFile(join(root, 'crlf-skill.md'), [ '---', - 'name: tight-body', - 'description: Tight body', - '---First line must survive.', - 'Second line.', + 'name: crlf-skill', + 'description: CRLF skill', + 'metadata:', + ' marker: "----"', + '---', + '', + 'CRLF body.', + ].join('\r\n')) + await writeFile(join(root, 'block-skill.md'), [ + '---', + 'name: block-skill', + 'description: |', + ' Includes a ---- marker that is not a delimiter.', + '---', + '', + 'Block body.', ].join('\n')) const ctx = new Context() await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - expect((await ctx.skills.get('tight-body'))?.content).toBe('First line must survive.\nSecond line.') + expect((await ctx.skills.get('crlf-skill'))?.content).toBe('CRLF body.') + expect((await ctx.skills.get('crlf-skill'))?.metadata).toEqual({ marker: '----' }) + expect((await ctx.skills.get('block-skill'))?.description).toBe('Includes a ---- marker that is not a delimiter.\n') + expect((await ctx.skills.get('block-skill'))?.content).toBe('Block body.') + }) + + it('skips invalid YAML skill files without poisoning discovery cache', async () => { + const home = await tempDir('skill-invalid-yaml') + const root = join(home, '.dsh/skills') + await writeSkill(root, 'good-skill', 'Good skill') + await writeFile(join(root, 'bad-yaml.md'), '---\nname: bad-yaml\ndescription: [unclosed\n---\n\nBad body.\n') + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['good-skill']) + await writeFile(join(root, 'bad-yaml.md'), '---\nname: fixed-skill\ndescription: Fixed skill\n---\n\nFixed body.\n') + + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['good-skill']) + const dispose = ctx.skills.register({ + name: 'runtime-skill', + description: 'Runtime skill', + content: 'Runtime body.', + directory: 'memory://runtime', + source: 'runtime', + }) + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['fixed-skill', 'good-skill', 'runtime-skill']) + dispose() + }) + + it('does not cache a rejected discovery promise', async () => { + const home = await tempDir('skill-rejected-cache') + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + const internals = ctx.skills as unknown as { + collectFresh(roots: unknown): Promise + } + const original = internals.collectFresh.bind(ctx.skills) + let fail = true + internals.collectFresh = async (roots: unknown) => { + if (fail) throw new Error('transient discovery failure') + return await original(roots) + } + + await expect(ctx.skills.list()).rejects.toThrow('transient discovery failure') + fail = false + await writeSkill(join(home, '.dsh/skills'), 'late-good', 'Late good') + await expect(ctx.skills.list()).resolves.toMatchObject([{ name: 'late-good' }]) + }) + + it('discovers symlinked skill directories and flat files', async () => { + const home = await tempDir('skill-symlink-home') + const external = await tempDir('skill-symlink-external') + await writeSkill(external, 'linked-dir', 'Linked directory') + await writeFlatSkill(external, 'linked-flat', 'Linked flat') + await mkdir(join(home, '.dsh/skills'), { recursive: true }) + await symlink(join(external, 'linked-dir'), join(home, '.dsh/skills/linked-dir')) + await symlink(join(external, 'linked-flat.md'), join(home, '.dsh/skills/linked-flat.md')) + await symlink(join(external, 'missing'), join(home, '.dsh/skills/broken-link')) + await symlink('/dev/null', join(home, '.dsh/skills/device-link')) + + const ctx = new Context() + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['linked-dir', 'linked-flat']) + }) + + it('honors prompt and cache bounds from config', async () => { + const home = await tempDir('skill-config-bounds') + const firstProject = await tempDir('skill-config-first') + const secondProject = await tempDir('skill-config-second') + await mkdir(join(firstProject, '.git'), { recursive: true }) + await mkdir(join(secondProject, '.git'), { recursive: true }) + await writeSkill(join(firstProject, '.dsh/skills'), 'first-skill', 'abcdefghij') + await writeSkill(join(secondProject, '.dsh/skills'), 'second-skill', 'Second') + + const ctx = new Context() + await ctx.plugin(SkillService, { + dshHome: join(home, '.dsh'), + agentsHome: join(home, '.agents'), + installSystemSkills: false, + promptFieldMaxLength: 6, + collectCacheMaxEntries: 1, + }) + + expect(await ctx.skills.renderModelListing({ cwd: firstProject })).toContain('description: abc...') + expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['first-skill']) + await writeSkill(join(firstProject, '.dsh/skills'), 'late-first', 'Late first') + expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['first-skill']) + await ctx.skills.list({ cwd: secondProject }) + expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['first-skill', 'late-first']) + }) + + it('rejects invalid positive-integer config caps', async () => { + const home = await tempDir('skill-invalid-config') + const ctx = new Context() + await expect(ctx.plugin(SkillService, { + dshHome: join(home, '.dsh'), + agentsHome: join(home, '.agents'), + installSystemSkills: false, + promptFieldMaxLength: 0, + })).rejects.toThrow('promptFieldMaxLength') + await expect(ctx.plugin(SkillService, { + dshHome: join(home, '.dsh'), + agentsHome: join(home, '.agents'), + installSystemSkills: false, + collectCacheMaxEntries: 1.5, + })).rejects.toThrow('collectCacheMaxEntries') }) it('renders no model listing when no model-invocable skills exist', async () => { @@ -178,6 +342,16 @@ describe('SkillService', () => { } }) + it('keeps constructor defaults when schema preprocessing is not involved', async () => { + const home = await tempDir('skill-constructor-defaults') + const service = new SkillService(new Context(), { + dshHome: join(home, '.dsh'), + agentsHome: join(home, '.agents'), + }) + + expect((await service.list()).map(skill => skill.name)).toEqual(['dsh-plugin-creator', 'dsh-skill-creator']) + }) + it('installs system skills into the DSH home without overwriting existing files', async () => { const home = await tempDir('skill-install') const existing = join(home, '.dsh/skills/.system/dsh-plugin-creator/SKILL.md') @@ -202,7 +376,7 @@ describe('SkillService', () => { await writeFile(existing, '---\nname: dsh-plugin-creator\ndescription: Existing system skill\n---\n\nExisting body.\n') const ctx = new Context() - await ctx.plugin(LocalFileSystem, { cwd: home }) + await ctx.plugin(TestFileSystem) await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) expect((await ctx.skills.list()).map(skill => [skill.name, skill.description])).toEqual([ @@ -237,7 +411,7 @@ describe('SkillService', () => { ])) const ctx = new Context() - await ctx.plugin(LocalFileSystem, { cwd: home }) + await ctx.plugin(TestFileSystem) await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['text-skill']) diff --git a/packages/core/skill/tsconfig.json b/packages/core/skill/tsconfig.json index 246a0f8b3c..db80ec56ed 100644 --- a/packages/core/skill/tsconfig.json +++ b/packages/core/skill/tsconfig.json @@ -8,6 +8,7 @@ "references": [ { "path": "../../../vendor/cosmokit" }, { "path": "../../../vendor/cordis" }, + { "path": "../../../vendor/schemastery" }, { "path": "../../fs/fs" }, { "path": "../../llm/llm" }, { "path": "../agent" } diff --git a/packages/ui/acp-agent/src/index.ts b/packages/ui/acp-agent/src/index.ts index c505e9bf41..26ca874ff8 100644 --- a/packages/ui/acp-agent/src/index.ts +++ b/packages/ui/acp-agent/src/index.ts @@ -38,6 +38,15 @@ import SessionPersistenceJsonl from '@deepseek-ai/dsh-session-persistence-jsonl' export const name = 'acp-agent' +const SkillConfigSchema: z = z.object({ + dshHome: z.string(), + agentsHome: z.string(), + extraRoots: z.array(z.string()).default([]), + installSystemSkills: z.boolean().default(true), + promptFieldMaxLength: z.number().default(500), + collectCacheMaxEntries: z.number().default(128), +}) + /** * App config: the swappable per-deployment values. `model`/`systemPrompt` * configure the agent template the ACP bridge creates each session's agent from @@ -51,12 +60,15 @@ export interface Config { systemPrompt: string /** Directory the JSONL session backend writes under. Defaults to `./.sessions`. */ persistenceRoot?: string + /** Skill discovery config forwarded to the shared agent-core spine. */ + skills?: agentCore.SkillConfig } export const Config: z = z.object({ model: z.string().required(), systemPrompt: z.string().required(), persistenceRoot: z.string().default('./.sessions'), + skills: SkillConfigSchema, }) /** @@ -67,7 +79,7 @@ export const Config: z = z.object({ * stdout stays pure. */ export function apply(ctx: Context, config: Config): void { - ctx.plugin(agentCore) + ctx.plugin(agentCore, { agents: [], ...config.skills === undefined ? {} : { skills: config.skills } }) ctx.plugin(SessionPersistenceJsonl, { root: config.persistenceRoot ?? './.sessions' }) ctx.plugin(acp, { model: config.model, systemPrompt: config.systemPrompt }) } diff --git a/packages/ui/acp-agent/tests/acp-agent.spec.ts b/packages/ui/acp-agent/tests/acp-agent.spec.ts index 7a02837fca..98b5cee517 100644 --- a/packages/ui/acp-agent/tests/acp-agent.spec.ts +++ b/packages/ui/acp-agent/tests/acp-agent.spec.ts @@ -1,4 +1,7 @@ import { describe, expect, it } from 'vitest' +import { mkdtemp } from 'node:fs/promises' +import { join } from 'node:path' +import { tmpdir } from 'node:os' import { Context } from 'cordis' import Loader from '@cordisjs/plugin-loader' import * as acpAgent from '../src/index.ts' @@ -22,9 +25,14 @@ async function mount(config: acpAgent.Config): Promise { return ctx } +async function isolatedSkillsConfig(): Promise> { + const home = await mkdtemp(join(tmpdir(), 'dsh-acp-agent-skills-')) + return { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false } +} + describe('dsh-acp-agent composition', () => { it('brings up the spine + persistence + the ACP bridge', async () => { - const ctx = await mount({ model: 'mock', systemPrompt: 'hi', persistenceRoot: '/tmp/dsh-acp-agent-test' }) + const ctx = await mount({ model: 'mock', systemPrompt: 'hi', persistenceRoot: '/tmp/dsh-acp-agent-test', skills: await isolatedSkillsConfig() }) expect(ctx.get('agents')).toBeDefined() expect(ctx.get('sessions')).toBeDefined() expect(ctx.get('sessionPersistence')).toBeDefined() @@ -40,12 +48,18 @@ describe('dsh-acp-agent composition', () => { // `ctx.plugin`, which validates+defaults the config first) with no // persistenceRoot, so the runtime fallback is the one that fires. const ctx = new Context() - acpAgent.apply(ctx, { model: 'mock', systemPrompt: 'hi' }) + acpAgent.apply(ctx, { model: 'mock', systemPrompt: 'hi', skills: await isolatedSkillsConfig() }) await new Promise(resolve => setTimeout(resolve, 50)) expect(ctx.get('sessionPersistence')).toBeDefined() await ctx.fiber.dispose() }) + it('forwards skill config into agent-core', async () => { + const ctx = await mount({ model: 'mock', systemPrompt: 'hi', skills: await isolatedSkillsConfig() }) + expect(await ctx.skills.list()).toEqual([]) + await ctx.fiber.dispose() + }) + it('exposes its plugin shape', () => { expect(acpAgent.name).toBe('acp-agent') expect(acpAgent.Config).toBeDefined() diff --git a/packages/ui/acp-agent/tests/built-bin.e2e.ts b/packages/ui/acp-agent/tests/built-bin.e2e.ts index d900c14152..1746005c34 100644 --- a/packages/ui/acp-agent/tests/built-bin.e2e.ts +++ b/packages/ui/acp-agent/tests/built-bin.e2e.ts @@ -120,7 +120,12 @@ describe.skipIf(!existsSync(acpBin))('dsh-acp-agent BUILT bin (node lib/bin.js, child = spawn(process.execPath, ['--expose-internals', acpBin, './cordis.yml'], { cwd: consumer, // Dummy key: initialize never reaches the model, so it is never used. - env: { ...process.env, DEEPSEEK_API_KEY: process.env.DEEPSEEK_API_KEY ?? 'sk-dummy-for-boot' }, + env: { + ...process.env, + DEEPSEEK_API_KEY: process.env.DEEPSEEK_API_KEY ?? 'sk-dummy-for-boot', + DSH_HOME: join(consumer, '.dsh'), + DSH_AGENTS_HOME: join(consumer, '.agents'), + }, stdio: ['pipe', 'pipe', 'pipe'], }) const stderr: string[] = [] @@ -180,7 +185,12 @@ function runBinExpectingExit(configArg: string, cwd: string = tmpdir()): Promise return new Promise((resolve, reject) => { const proc = spawn(process.execPath, ['--expose-internals', acpBin, configArg], { cwd, - env: { ...process.env, DEEPSEEK_API_KEY: process.env.DEEPSEEK_API_KEY ?? 'sk-dummy-for-boot' }, + env: { + ...process.env, + DEEPSEEK_API_KEY: process.env.DEEPSEEK_API_KEY ?? 'sk-dummy-for-boot', + DSH_HOME: join(cwd, '.dsh'), + DSH_AGENTS_HOME: join(cwd, '.agents'), + }, stdio: ['pipe', 'pipe', 'pipe'], }) child = proc diff --git a/packages/ui/acp-agent/tests/load-path.e2e.ts b/packages/ui/acp-agent/tests/load-path.e2e.ts index fd559d99bf..ee27b35c09 100644 --- a/packages/ui/acp-agent/tests/load-path.e2e.ts +++ b/packages/ui/acp-agent/tests/load-path.e2e.ts @@ -90,6 +90,8 @@ async function boot(): Promise { TSX_TSCONFIG_PATH: repoTsconfig, // Key-present check only; no prompt is sent, so the model is never called. DEEPSEEK_API_KEY: process.env.DEEPSEEK_API_KEY ?? 'keyless-acp-agent-smoke', + DSH_HOME: join(cwd, '.dsh'), + DSH_AGENTS_HOME: join(cwd, '.agents'), }, stdio: ['pipe', 'pipe', 'pipe'], }, diff --git a/packages/ui/stdio-agent/src/index.ts b/packages/ui/stdio-agent/src/index.ts index d620d9f723..2a370f5cb3 100644 --- a/packages/ui/stdio-agent/src/index.ts +++ b/packages/ui/stdio-agent/src/index.ts @@ -49,6 +49,15 @@ import * as uiStdio from './stdio-chat.ts' export const name = 'stdio-agent' +const SkillConfigSchema: z = z.object({ + dshHome: z.string(), + agentsHome: z.string(), + extraRoots: z.array(z.string()).default([]), + installSystemSkills: z.boolean().default(true), + promptFieldMaxLength: z.number().default(500), + collectCacheMaxEntries: z.number().default(128), +}) + /** * App config: the swappable per-demo values, each routed to where the app wires * it. `model`/`systemPrompt`/`resumeSessionId` configure the pre-created `main` @@ -66,6 +75,8 @@ export interface Config { persistenceRoot?: string /** stdin-chat banner printed once on start. Defaults to `'ready.'`. */ welcome?: string + /** Skill discovery config forwarded to the shared agent-core spine. */ + skills?: agentCore.SkillConfig /** * If set, the `main` agent RESUMES this persisted session id instead of * starting fresh. Sourced from an env var in the leaf `cordis.yml` @@ -79,6 +90,7 @@ export const Config: z = z.object({ systemPrompt: z.string().required(), persistenceRoot: z.string().default('./.sessions'), welcome: z.string().default('ready.'), + skills: SkillConfigSchema, resumeSessionId: z.string(), }) @@ -99,6 +111,7 @@ export function apply(ctx: Context, config: Config): void { cwd: process.cwd(), ...config.resumeSessionId !== undefined ? { resumeSessionId: SessionId(config.resumeSessionId) } : {}, }], + ...config.skills !== undefined ? { skills: config.skills } : {}, }) ctx.plugin(SessionPersistenceJsonl, { root: config.persistenceRoot ?? './.sessions' }) ctx.plugin(uiStdio, { welcome: config.welcome ?? 'ready.', agent: 'main' }) diff --git a/packages/ui/stdio-agent/tests/built-bin.e2e.ts b/packages/ui/stdio-agent/tests/built-bin.e2e.ts index cda8b41b1f..59862de8d4 100644 --- a/packages/ui/stdio-agent/tests/built-bin.e2e.ts +++ b/packages/ui/stdio-agent/tests/built-bin.e2e.ts @@ -110,7 +110,7 @@ function runBuiltBin(cwd: string, configArg: string, line: string): Promise<{ st const child = spawn(process.execPath, ['--expose-internals', stdioBin, configArg], { cwd, // Mock model: never calls the network, so no key needed. - env: { ...process.env }, + env: { ...process.env, DSH_HOME: join(cwd, '.dsh'), DSH_AGENTS_HOME: join(cwd, '.agents') }, stdio: ['pipe', 'pipe', 'pipe'], }) let stdout = '' diff --git a/packages/ui/stdio-agent/tests/stdio-agent.spec.ts b/packages/ui/stdio-agent/tests/stdio-agent.spec.ts index 1190231c14..ba19bf9718 100644 --- a/packages/ui/stdio-agent/tests/stdio-agent.spec.ts +++ b/packages/ui/stdio-agent/tests/stdio-agent.spec.ts @@ -1,4 +1,7 @@ import { describe, it, expect } from 'vitest' +import { mkdtemp } from 'node:fs/promises' +import { join } from 'node:path' +import { tmpdir } from 'node:os' import { Context } from 'cordis' import Loader from '@cordisjs/plugin-loader' import { AgentId } from '@deepseek-ai/dsh-agent' @@ -28,9 +31,14 @@ async function mount(config: stdioAgent.Config): Promise { return ctx } +async function isolatedSkillsConfig(): Promise> { + const home = await mkdtemp(join(tmpdir(), 'dsh-stdio-agent-skills-')) + return { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false } +} + describe('dsh-stdio-agent app', () => { it('composes the spine + front-door cluster and pre-creates the main agent', async () => { - const ctx = await mount({ model: 'mock', systemPrompt: 'hi', persistenceRoot: '/tmp/dsh-stdio-agent-spec' }) + const ctx = await mount({ model: 'mock', systemPrompt: 'hi', persistenceRoot: '/tmp/dsh-stdio-agent-spec', skills: await isolatedSkillsConfig() }) // The spine services (brought up by the agent-core bundle) are all present. expect(ctx.get('agents')).toBeDefined() expect(ctx.get('agentLoop')).toBeDefined() @@ -48,7 +56,7 @@ describe('dsh-stdio-agent app', () => { // apply()'s last two lines are the ones that fire — covering a // schema-bypassing direct-mount caller. const ctx = new Context() - stdioAgent.apply(ctx, { model: 'mock', systemPrompt: 'hi' }) + stdioAgent.apply(ctx, { model: 'mock', systemPrompt: 'hi', skills: await isolatedSkillsConfig() }) await new Promise(resolve => setTimeout(resolve, 80)) expect(ctx.get('sessionPersistence')).toBeDefined() expect(ctx.get('agents')?.get(AgentId('main'))).toBeDefined() @@ -64,11 +72,18 @@ describe('dsh-stdio-agent app', () => { systemPrompt: 'hi', persistenceRoot: '/tmp/dsh-stdio-agent-spec-resume', resumeSessionId: 'no-such-session', + skills: await isolatedSkillsConfig(), }) expect(ctx.get('agents')?.get(AgentId('main'))).toBeUndefined() await ctx.fiber.dispose() }) + it('forwards skill config into agent-core', async () => { + const ctx = await mount({ model: 'mock', systemPrompt: 'hi', skills: await isolatedSkillsConfig() }) + expect(await ctx.skills.list()).toEqual([]) + await ctx.fiber.dispose() + }) + it('exposes its name and Config schema', () => { expect(stdioAgent.name).toBe('stdio-agent') expect(stdioAgent.Config).toBeDefined() diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index fe2279319b..1e9291924a 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -222,6 +222,9 @@ importers: cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + schemastery: + specifier: ^3.18.0 + version: 3.18.0 packages/core/agent-loop: dependencies: @@ -271,6 +274,9 @@ importers: packages/core/skill: dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 yaml: specifier: ^2.4.2 version: 2.9.0 diff --git a/vitest.config.ts b/vitest.config.ts index 6afd87dcb0..7562dd628b 100644 --- a/vitest.config.ts +++ b/vitest.config.ts @@ -1,4 +1,5 @@ import tsconfigPaths from 'vite-tsconfig-paths' +import { fileURLToPath } from 'node:url' import { defineConfig } from 'vitest/config' export default defineConfig({ @@ -18,6 +19,16 @@ export default defineConfig({ // upstream copies (vendor/README.md). The plugin's `projects` option // instead applies the one root map to every importer. plugins: [tsconfigPaths({ projects: ['./tsconfig.json'] })], + resolve: { + // The root tsconfig maps `schemastery` to its vendored TS source, whose + // upstream module shape is `export = Schema`. Vite/Vitest does not synthesize + // a default export for that source file consistently, while the package's + // built ESM artifact does. Tests exercise harness source but can use the + // vendored dependency's built artifact for this CJS-interop boundary. + alias: { + schemastery: fileURLToPath(new URL('./vendor/schemastery/lib/index.mjs', import.meta.url)), + }, + }, test: { include: ['packages/*/*/tests/**/*.spec.ts', 'examples/*/tests/**/*.spec.ts'], coverage: { From 77ab82a94c2f98908a4f46ed2bfb61eb65ecfa9a Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Sun, 5 Jul 2026 18:38:44 +0800 Subject: [PATCH 012/232] fix: list skills through fs seam --- packages/core/skill/src/index.ts | 63 +++++++++++++++++++------ packages/core/skill/tests/skill.spec.ts | 34 +++++++++++-- 2 files changed, 79 insertions(+), 18 deletions(-) diff --git a/packages/core/skill/src/index.ts b/packages/core/skill/src/index.ts index 39c656eac8..d2a228dc1c 100644 --- a/packages/core/skill/src/index.ts +++ b/packages/core/skill/src/index.ts @@ -15,7 +15,7 @@ import { Context, Service } from 'cordis' import z from 'schemastery' import type Schema from 'schemastery' import { parse as parseYaml } from 'yaml' -import type { FileSystem, FsTarget } from '@deepseek-ai/dsh-fs' +import type { FileSystem, FsDirEntry, FsTarget } from '@deepseek-ai/dsh-fs' import type { GenerateOptions } from '@deepseek-ai/dsh-llm' import type {} from '@deepseek-ai/dsh-agent' @@ -338,6 +338,47 @@ function renderSkillFile(skill: SkillDefinition): string { } async function discoverRoot(root: SkillRoot, ctx: Context): Promise { + const skills: SkillDefinition[] = [] + const entries = await listSkillRootEntries(root, ctx) + for (const entry of entries.sort((a, b) => a.name.localeCompare(b.name))) { + if (root.skipSystem && entry.name === '.system') continue + const parsed = entry.type === 'directory' + ? await parseSkillFile(join(entry.path, 'SKILL.md'), entry.path, root.source, ctx) + : entry.type === 'file' && entry.name.endsWith('.md') + ? await parseSkillFile(entry.path, root.path, root.source, ctx) + : undefined + if (parsed) skills.push(parsed) + } + return skills +} + +interface SkillRootEntry { + name: string + type: 'directory' | 'file' | 'other' + path: string +} + +async function listSkillRootEntries(root: SkillRoot, ctx: Context): Promise { + const fs = optionalFileSystem(ctx) + if (fs !== undefined) return await listSkillRootEntriesFromFileSystem(root, fs) + return await listSkillRootEntriesFromNode(root, ctx) +} + +async function listSkillRootEntriesFromFileSystem(root: SkillRoot, fs: FileSystem): Promise { + try { + const target = await fs.resolve(root.path) + const entries = await fs.listDir(target) + return entries.map(entryFromFs) + } catch { + return [] + } +} + +function entryFromFs(entry: FsDirEntry): SkillRootEntry { + return { name: entry.name, type: entry.type, path: entry.target.displayPath } +} + +async function listSkillRootEntriesFromNode(root: SkillRoot, ctx: Context): Promise { let entries try { entries = await readdir(root.path, { withFileTypes: true, encoding: 'utf8' }) @@ -345,19 +386,13 @@ async function discoverRoot(root: SkillRoot, ctx: Context): Promise a.name.localeCompare(b.name))) { - if (root.skipSystem && entry.name === '.system') continue - const fullPath = join(root.path, entry.name) - const kind = await entryKind(fullPath, entry, ctx) - const parsed = kind === 'directory' - ? await parseSkillFile(join(fullPath, 'SKILL.md'), fullPath, root.source, ctx) - : kind === 'file' && entry.name.endsWith('.md') - ? await parseSkillFile(fullPath, root.path, root.source, ctx) - : undefined - if (parsed) skills.push(parsed) + const result: SkillRootEntry[] = [] + for (const entry of entries) { + const path = join(root.path, entry.name) + const type = await nodeEntryKind(path, entry, ctx) + result.push({ name: entry.name, type: type ?? 'other', path }) } - return skills + return result } async function parseSkillFile(path: string, directory: string, source: SkillSource, ctx: Context): Promise { @@ -456,7 +491,7 @@ function fsReadErrorMessage(target: FsTarget, error: unknown): string { return `failed to read text file at ${target.displayPath}: ${errorMessage(error)}` } -async function entryKind(fullPath: string, entry: { isDirectory(): boolean; isFile(): boolean; isSymbolicLink(): boolean }, ctx: Context): Promise<'directory' | 'file' | undefined> { +async function nodeEntryKind(fullPath: string, entry: { isDirectory(): boolean; isFile(): boolean; isSymbolicLink(): boolean }, ctx: Context): Promise<'directory' | 'file' | undefined> { if (entry.isDirectory()) return 'directory' if (entry.isFile()) return 'file' /* v8 ignore next -- Non-file directory entries such as FIFOs are platform-specific and intentionally skipped. */ diff --git a/packages/core/skill/tests/skill.spec.ts b/packages/core/skill/tests/skill.spec.ts index 8fdb6116ed..be16483a1e 100644 --- a/packages/core/skill/tests/skill.spec.ts +++ b/packages/core/skill/tests/skill.spec.ts @@ -1,10 +1,10 @@ import { describe, expect, it } from 'vitest' -import { mkdir, readFile, symlink, writeFile } from 'node:fs/promises' +import { mkdir, readdir, readFile, stat, symlink, writeFile } from 'node:fs/promises' import { dirname, join } from 'node:path' import { tmpdir } from 'node:os' import { Context } from 'cordis' import SkillService from '@deepseek-ai/dsh-skill' -import { FileSystem, FsVersion, type FsEditOutcome, type FsEditRequest, type FsInfo, type FsTarget, type FsWriteOutcome } from '@deepseek-ai/dsh-fs' +import { FileSystem, FsVersion, type FsDirEntry, type FsEditOutcome, type FsEditRequest, type FsInfo, type FsTarget, type FsWriteOutcome } from '@deepseek-ai/dsh-fs' async function tempDir(name: string): Promise { return await import('node:fs/promises').then(fs => fs.mkdtemp(join(tmpdir(), `dsh-${name}-`))) @@ -22,6 +22,8 @@ async function writeFlatSkill(root: string, name: string, description: string, b } class TestFileSystem extends FileSystem { + listDirCalls = 0 + override async resolve(path: string): Promise { return { targetKey: path as never, displayPath: path } } @@ -50,8 +52,30 @@ class TestFileSystem extends FileSystem { throw new Error('not needed in skill tests') } - override async listDir(): Promise { - throw new Error('not needed in skill tests') + override async listDir(target: FsTarget): Promise { + this.listDirCalls += 1 + const entries = await readdir(target.displayPath, { withFileTypes: true, encoding: 'utf8' }) + const result: FsDirEntry[] = [] + for (const entry of entries.sort((left, right) => left.name.localeCompare(right.name))) { + const childPath = join(target.displayPath, entry.name) + let type: FsInfo['type'] = 'other' + let size: number | undefined + try { + const info = await stat(childPath) + type = info.isFile() ? 'file' : info.isDirectory() ? 'directory' : 'other' + size = info.isFile() ? info.size : undefined + } catch { + type = 'other' + } + result.push({ + name: entry.name, + type, + target: { targetKey: childPath as never, displayPath: childPath }, + version: FsVersion('test'), + ...(size !== undefined ? { size } : {}), + }) + } + return result } override async writeText(target: FsTarget, content: string): Promise { @@ -412,9 +436,11 @@ describe('SkillService', () => { const ctx = new Context() await ctx.plugin(TestFileSystem) + const fs = ctx.fs as TestFileSystem await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['text-skill']) + expect(fs.listDirCalls).toBeGreaterThan(0) expect(await ctx.skills.get('binary-skill')).toBeUndefined() }) From e264a106fdfea5d5c1db8be72058b6f1a16edf99 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 5 Jul 2026 19:04:38 +0800 Subject: [PATCH 013/232] workflow, subagent: fix Codex code-review round-1 blockers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Six verified A-findings from the code-stage review, each with a regression test: - parallel()/pipeline() resolved to HOST arrays inside the vm realm, exposing host Array.prototype to scripts; combinator results are now realm-built (in-realm Array.from bound at context setup). - materializeFromRealm ran proxy traps (ownKeys/getOwnPropertyDescriptor/ getPrototypeOf) during the descriptor walk — realm code on the host stack, outside the vm timeout, escaping as raw errors; proxies (root, nested, and in the prototype position) are now rejected trap-free via util.types.isProxy before any inspection. - an already-aborted signal or an immediate cancel() no longer reports 'completed' for a hook-free script: drive() checks cancellation before running the body and again when the script settles. - dispose() now waits (bounded by disposeGraceMs) for stray agent() children to FINISH disposing, not just for the script to settle: every agent() call is tracked and quiesce() drains the in-flight set. - workflow/* event payloads were live mutable aliases shared across emissions; emitWorkflowEvent now hands each listener its own structural clone. - the structured-output turn-continuation veto is now prepend: true, so an earlier-registered force-continue listener cannot short-circuit it. Docs updated in the same change (READMEs, core-data-structures/workflow.md, the dynamic-workflows RFC, regenerated cordis catalogs). --- docs/cordis-catalog/events.md | 12 +- docs/cordis-catalog/services.md | 4 +- docs/core-data-structures/workflow.md | 4 +- .../feature/2026-07-05-dynamic-workflows.md | 6 +- .../subagent/subagent-inprocess/README.md | 2 +- .../subagent-inprocess/src/structured.ts | 12 +- .../tests/structured.spec.ts | 29 ++++ packages/workflow/workflow-vm/README.md | 6 +- packages/workflow/workflow-vm/src/index.ts | 28 +++- packages/workflow/workflow-vm/src/realm.ts | 19 ++- packages/workflow/workflow-vm/src/runtime.ts | 57 ++++++- .../workflow/workflow-vm/tests/meta.spec.ts | 8 + .../workflow/workflow-vm/tests/realm.spec.ts | 21 +++ .../workflow-vm/tests/workflow-vm.spec.ts | 146 +++++++++++++++++- packages/workflow/workflow/README.md | 4 +- packages/workflow/workflow/src/index.ts | 29 ++-- .../workflow/workflow/tests/workflow.spec.ts | 22 +++ 17 files changed, 358 insertions(+), 51 deletions(-) diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 463c7e06b2..1ba45f027e 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -323,7 +323,7 @@ One `agent()` call settled (clean result, child failure, or run cancellation). P 'workflow/agent-end'(info: WorkflowRunInfo, agent: WorkflowAgentEndInfo): void ``` -Source: [`packages/workflow/workflow/src/index.ts:91`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:93`](../../packages/workflow/workflow/src/index.ts) ### `workflow/agent-start` — emit @@ -333,7 +333,7 @@ One `agent()` call started a child run. Paired with Events['workflow/agent-end'] 'workflow/agent-start'(info: WorkflowRunInfo, agent: WorkflowAgentInfo): void ``` -Source: [`packages/workflow/workflow/src/index.ts:83`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:85`](../../packages/workflow/workflow/src/index.ts) ### `workflow/end` — emit @@ -343,7 +343,7 @@ A workflow run settled (any stop reason). Fired when WorkflowRun.result resolves 'workflow/end'(info: WorkflowRunInfo, result: WorkflowResultInfo): void ``` -Source: [`packages/workflow/workflow/src/index.ts:101`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:103`](../../packages/workflow/workflow/src/index.ts) ### `workflow/log` — emit @@ -353,7 +353,7 @@ The script emitted a narration line (a `log(message)` call). 'workflow/log'(info: WorkflowRunInfo, message: string): void ``` -Source: [`packages/workflow/workflow/src/index.ts:75`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:77`](../../packages/workflow/workflow/src/index.ts) ### `workflow/phase` — emit @@ -363,7 +363,7 @@ The script entered a phase (a `phase(title)` call) — progress grouping for obs 'workflow/phase'(info: WorkflowRunInfo, title: string): void ``` -Source: [`packages/workflow/workflow/src/index.ts:68`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:70`](../../packages/workflow/workflow/src/index.ts) ### `workflow/start` — emit @@ -373,7 +373,7 @@ A workflow run started — the script's meta block validated, the body about to 'workflow/start'(info: WorkflowRunInfo): void ``` -Source: [`packages/workflow/workflow/src/index.ts:60`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:62`](../../packages/workflow/workflow/src/index.ts) ## Inherited events (cordis core + loader/hmr/timer) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index c1f67c0725..88559d658f 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -235,13 +235,13 @@ Semantics every implementation must honor: - start throws synchronously for a request that cannot begin (an unparseable script, an invalid meta block). Once it returns a WorkflowRun, `result` NEVER rejects — every failure resolves with `stopReason: 'error'` (or `'cancelled'`). - The `workflow/*` events fire through emitWorkflowEvent (data snapshots, per-listener containment); `workflow/end` fires exactly once per started run, after `result` is settled or as it settles. -- `dispose()` reaches quiescence within a bounded grace: it cancels, waits for the script to settle, and abandons a stuck script rather than hanging its caller (the engine documents what abandonment leaves behind). +- `dispose()` reaches quiescence within a bounded grace: it cancels, waits for the script to settle AND its started children to finish disposing, and abandons whatever is left rather than hanging its caller (the engine documents what abandonment leaves behind). ```ts cordis-catalog abstract start(request: WorkflowStartRequest): WorkflowRun ``` -Source: [`packages/workflow/workflow/src/index.ts:188`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:191`](../../packages/workflow/workflow/src/index.ts) ## Inherited `ctx` members (cordis core + loader/hmr/timer) diff --git a/docs/core-data-structures/workflow.md b/docs/core-data-structures/workflow.md index ebdf00869a..11f216f39e 100644 --- a/docs/core-data-structures/workflow.md +++ b/docs/core-data-structures/workflow.md @@ -47,7 +47,7 @@ interface WorkflowResult { ## A live run: `WorkflowRun` -The handle the consumer holds while a script executes. The consumer awaits `result`, may `cancel` mid-flight, and MUST `dispose` on every path. `result` does NOT reject — a script failure resolves with `stopReason: 'error'` — so the consumer maps a non-`completed` reason to an `isError` result. `dispose()` cancels, waits a bounded grace for the script to settle, then abandons it (the engine documents the abandonment semantics); it never hangs on a stuck script. +The handle the consumer holds while a script executes. The consumer awaits `result`, may `cancel` mid-flight, and MUST `dispose` on every path. `result` does NOT reject — a script failure resolves with `stopReason: 'error'` — so the consumer maps a non-`completed` reason to an `isError` result. `dispose()` cancels, waits a bounded grace for the script to settle AND its children to finish disposing, then abandons whatever is left (the engine documents the abandonment semantics); it never hangs on a stuck script. ```ts type-equiv interface WorkflowRun { @@ -65,4 +65,4 @@ Hook misuse inside a script — bad arguments, unknown/deferred `agent()` option ## Events -The `workflow/*` events (`workflow/start`, `workflow/phase`, `workflow/log`, `workflow/agent-start`, `workflow/agent-end`, `workflow/end` — see the [events catalog](../cordis-catalog/events.md)) are **observe-only** emits carrying DATA SNAPSHOTS: every payload starts with `WorkflowRunInfo` (id + meta), never the live `WorkflowRun`, so a subscriber cannot gain `cancel`/`dispose`, and `workflow/end` deliberately omits the result value (a listener observing outcomes must not receive a mutable alias of the caller's result). Every emit is per-listener contained — a throwing subscriber is logged, never propagated, and cannot starve the listeners registered after it — mirroring `subagent/start`/`subagent/end`. +The `workflow/*` events (`workflow/start`, `workflow/phase`, `workflow/log`, `workflow/agent-start`, `workflow/agent-end`, `workflow/end` — see the [events catalog](../cordis-catalog/events.md)) are **observe-only** emits carrying DATA SNAPSHOTS: every payload starts with `WorkflowRunInfo` (id + meta), never the live `WorkflowRun`, so a subscriber cannot gain `cancel`/`dispose`, and `workflow/end` deliberately omits the result value (a listener observing outcomes must not receive a mutable alias of the caller's result). Every emit is per-listener contained — a throwing subscriber is logged, never propagated, and cannot starve the listeners registered after it — and every listener receives its own payload clone, so mutating it corrupts neither the engine nor other listeners; the containment mirrors `subagent/start`/`subagent/end`. diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index 372fce8f9a..35b65e3fb2 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -24,11 +24,11 @@ One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferre ### The engine (dsh-workflow-vm): in-process node:vm -**Why node:vm and not isolated-vm/worker threads**: isolated-vm is in maintenance mode, needs `--no-node-snapshot` on EVERY consumer process (including the published bins) on Node ≥ 20, and falls back to node-gyp source builds; a worker-thread engine turns every hook into RPC and complicates the per-file coverage gate. Scripts are model-written — the same trust level as the model's existing bash access — so genuine sandboxing is not the current requirement. The interface/implementation split exists precisely so a hardened engine can swap in later. Accepted, documented limitations: vm is not a security boundary, and the vm timeout covers only the initial synchronous slice — a pathological synchronous spin after the first await cannot be killed in-process; `dispose()` cancels, waits a bounded grace, then abandons. +**Why node:vm and not isolated-vm/worker threads**: isolated-vm is in maintenance mode, needs `--no-node-snapshot` on EVERY consumer process (including the published bins) on Node ≥ 20, and falls back to node-gyp source builds; a worker-thread engine turns every hook into RPC and complicates the per-file coverage gate. Scripts are model-written — the same trust level as the model's existing bash access — so genuine sandboxing is not the current requirement. The interface/implementation split exists precisely so a hardened engine can swap in later. Accepted, documented limitations: vm is not a security boundary, and the vm timeout covers only the initial synchronous slice — a pathological synchronous spin after the first await cannot be killed in-process; `dispose()` cancels, waits a bounded grace for the script to settle and its children to finish disposing, then abandons. **Meta extraction**: a string/comment-aware brace scanner (template interpolation rejected) finds the literal; it is evaluated ALONE in an empty, timed vm context; the result must materialize to plain JSON data and pass shape validation (unknown fields rejected loud); the statement is blanked line-preservingly so stacks keep script line numbers. -**Realm boundary**: values entering the host (meta, hook options, schemas, the return value) go through `materializeFromRealm` — a descriptor walk that NEVER invokes accessors (the repo's `isJsonValue` is prototype-strict and getter-invoking, so it cannot run first; it would reject every cross-realm object and let realm code run outside the timed window) and rejects loud everything JSON cannot carry, copying via `Object.defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Values entering the realm (`args`, `agent()` results) are rebuilt INSIDE the realm via the context's own `JSON.parse`, so the script never holds a live host-prototype object. Realm functions (stages, thunks) are called, never materialized. +**Realm boundary**: values entering the host (meta, hook options, schemas, the return value) go through `materializeFromRealm` — a descriptor walk that NEVER invokes accessors (the repo's `isJsonValue` is prototype-strict and getter-invoking, so it cannot run first; it would reject every cross-realm object and let realm code run outside the timed window) and rejects loud everything JSON cannot carry, proxies included (the trap-free `util.types.isProxy`, checked before any inspection, so realm-side traps never run on the host stack), copying via `Object.defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Values entering the realm (`args`, `agent()` results) are rebuilt INSIDE the realm via the context's own `JSON.parse`, and `parallel`/`pipeline` resolve to realm-built arrays, so the script never holds a live host-prototype object. Realm functions (stages, thunks) are called, never materialized. **Containment**: every hook-returned promise carries a no-op rejection consumer, so a script that drops a promise cannot surface an unhandled rejection when cancellation rejects it — `dsh-app-boot` exits the process on unhandled rejections. Caps (`maxConcurrentAgents` auto = `min(16, cores - 2)`, `maxTotalAgents` 1000, `maxItemsPerCall` 4096) and timeouts are validated Config, not literals. @@ -38,7 +38,7 @@ A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, awai ### The foundation: structured output on the subagent seam -`agent({schema})` needs `SubagentStartRequest.outputSchema` to actually work; it was vocabulary without an implementation (`outputSchema: false` everywhere). Implemented in `dsh-subagent-inprocess` for both in-process backends: a globally registered `structured_output` capture tool whose per-child schema is enforced by a `prepend: true` `agent/request` listener doing FINAL-REQUEST enforcement (post-processing `await next()` — cooperative mutation would not survive a downstream listener returning a replacement request), an `agent/turn-continuation` veto after capture (no wasted extra model step), validation-retry in-turn via `ToolArgsError`, and a clean-finish nudge loop (`structuredNudgeRetries`). Lifetime is refcounted by backends (plugin lifetime) AND live runs (start → settle). The seam's `outputSchema` type became the raw JSON-Schema SUBSET (`StructuredOutputSchema` in dsh-tools: single-string `type`, `properties`/`required`/`additionalProperties`, `items`, scalar `enum`/`const`; anything unenforced is rejected loud) — the schema travels verbatim to the model as the forced tool's parameters, so the wire format, not the author DSL, is the right vocabulary. +`agent({schema})` needs `SubagentStartRequest.outputSchema` to actually work; it was vocabulary without an implementation (`outputSchema: false` everywhere). Implemented in `dsh-subagent-inprocess` for both in-process backends: a globally registered `structured_output` capture tool whose per-child schema is enforced by a `prepend: true` `agent/request` listener doing FINAL-REQUEST enforcement (post-processing `await next()` — cooperative mutation would not survive a downstream listener returning a replacement request), a `prepend: true` `agent/turn-continuation` veto after capture (no wasted extra model step, and an earlier-registered force-continue listener cannot short-circuit it), validation-retry in-turn via `ToolArgsError`, and a clean-finish nudge loop (`structuredNudgeRetries`). Lifetime is refcounted by backends (plugin lifetime) AND live runs (start → settle). The seam's `outputSchema` type became the raw JSON-Schema SUBSET (`StructuredOutputSchema` in dsh-tools: single-string `type`, `properties`/`required`/`additionalProperties`, `items`, scalar `enum`/`const`; anything unenforced is rejected loud) — the schema travels verbatim to the model as the forced tool's parameters, so the wire format, not the author DSL, is the right vocabulary. ## What was rejected diff --git a/packages/subagent/subagent-inprocess/README.md b/packages/subagent/subagent-inprocess/README.md index 1cbdccaee6..a257582464 100644 --- a/packages/subagent/subagent-inprocess/README.md +++ b/packages/subagent/subagent-inprocess/README.md @@ -24,7 +24,7 @@ Runs a child as a child [`Agent`](../../core/agent) on the same cordis context ( The mechanism behind `outputSchema` for in-process children. One globally registered `structured_output` capture tool (its registered parameters are a placeholder) plus two listeners, registered once per root context and shared by every holder: - an `agent/request` waterfall listener registered `prepend: true` that post-processes `await next()` — **final-request enforcement**: the request that hits the wire never carries `structured_output` for an agent without a structured run, and always carries the run's OWN schema (as the tool's `parameters`) for one that has it. Per-agent shaping lives here because the tool registry and prompt assembly are context-global while schemas differ per concurrent child; cooperative mutate-then-`next()` would not survive a downstream listener returning a replacement request. -- an `agent/turn-continuation` listener that stops a child's turn once its output is captured, so a successful capture doesn't buy a wasted extra model step. +- an `agent/turn-continuation` listener (also `prepend: true` — an earlier-registered force-continue listener returning without `next()` must not decide the turn before the veto runs) that stops a child's turn once its output is captured, so a successful capture doesn't buy a wasted extra model step. The capture tool validates each call against the run's schema (`validateStructuredValue`) — violations become an `INVALID_ARGS` isError result the model retries in-turn; a valid call records the value. diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts index da371ac8f4..2a061ed56d 100644 --- a/packages/subagent/subagent-inprocess/src/structured.ts +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -18,7 +18,9 @@ * * A companion `agent/turn-continuation` listener stops a child's turn once its * output is captured — without it, the loop's default "had tool calls ⇒ - * continue" buys a wasted extra model step per structured child. + * continue" buys a wasted extra model step per structured child. It is also + * `prepend: true`: the veto must run before any earlier-registered listener + * that could short-circuit the chain into a forced continue. * * Lifetime is refcounted with two kinds of holder: each backend acquires for * its plugin lifetime (so the tool exists before any run), and each structured @@ -183,11 +185,15 @@ function registerRuntime(root: Context, runtime: StructuredRuntime): void { // Stop a structured child's turn once its output is captured: the default // "had tool calls ⇒ continue" would otherwise buy a wasted extra model step - // after every successful capture. + // after every successful capture. `prepend: true` puts the veto OUTERMOST — + // an earlier-registered listener that short-circuits the chain (a goal-style + // force-continue returning without `next()`) would otherwise decide the turn + // before this listener ever ran, and no downstream decision may resurrect a + // structured turn that is already finished. runtime.disposers.push(root.on('agent/turn-continuation', function ( this: unknown, agent: Agent, _turn: number, _decision: ContinuationDecision, next: () => Promise, ): Promise { if (runtime.states.get(agent)?.captured) return Promise.resolve({ action: 'stop' }) return next() - })) + }, { prepend: true })) } diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index 0a92c15fa8..cb046cc469 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -5,6 +5,7 @@ import SessionStore from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' import AgentRegistry, { AgentId } from '@deepseek-ai/dsh-agent' +import type { Agent, ContinuationDecision } from '@deepseek-ai/dsh-agent' import AgentLoop from '@deepseek-ai/dsh-agent-loop' import * as Invariants from '@deepseek-ai/dsh-invariants' import SubagentService, { type SubagentStartRequest } from '@deepseek-ai/dsh-subagent' @@ -85,6 +86,34 @@ describe('in-process structured output', () => { await run.dispose() }) + it('the captured-turn veto is prepend: an EARLIER force-continue listener cannot short-circuit it', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + // Registered BEFORE the structured runtime exists — without prepend, this + // goal-style listener would decide the turn first (returning WITHOUT + // calling next()) and the veto would never run. + ctx.on('agent/turn-continuation', () => Promise.resolve({ action: 'continue' })) + const acquisition = acquireStructuredRuntime(ctx) + const agent = { id: AgentId('structured-child') } as unknown as Agent + acquisition.attach(agent, SCHEMA) + const captured = await ctx.tools.execute({ + callId: 'call-1' as never, + name: STRUCTURED_OUTPUT_TOOL, + arguments: { answer: 1 }, + agent, + }) + expect(captured.isError).toBeFalsy() + const decision = await ctx.waterfall( + 'agent/turn-continuation', agent, 1, + { action: 'continue' }, + () => Promise.resolve({ action: 'continue' }), + ) + expect(decision).toEqual({ action: 'stop' }) + acquisition.detach(agent) + acquisition.release() + }) + it('an invalid call gets an INVALID_ARGS isError result and the model retries in-turn', async () => { const { ctx, parent } = await setup([ toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 'not-a-number' }), diff --git a/packages/workflow/workflow-vm/README.md b/packages/workflow/workflow-vm/README.md index 1cbc76c250..0ba1173f23 100644 --- a/packages/workflow/workflow-vm/README.md +++ b/packages/workflow/workflow-vm/README.md @@ -10,11 +10,11 @@ The first [`WorkflowService`](../workflow/README.md) implementation: an in-proce ## Realm discipline -Values ENTERING the host (the meta literal, hook options/schemas, the script's return) are materialized by `materializeFromRealm`: a descriptor walk that never invokes accessors and rejects loud everything JSON cannot carry (accessors, exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`), copying into host containers via `defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Values ENTERING the realm (`args`, `agent()` results) are rebuilt INSIDE the realm through the context's own `JSON.parse`, so the script never holds an object whose prototype chain reaches host intrinsics. +Values ENTERING the host (the meta literal, hook options/schemas, the script's return) are materialized by `materializeFromRealm`: a descriptor walk that never invokes accessors and rejects loud everything JSON cannot carry (accessors, exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`, and proxies — rejected via the trap-free `util.types.isProxy` BEFORE any inspection could run a realm-side trap on the host stack), copying into host containers via `defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Values ENTERING the realm (`args`, `agent()` results) are rebuilt INSIDE the realm through the context's own `JSON.parse`, and the arrays `parallel`/`pipeline` resolve to are realm-built, so the script never holds an object whose prototype chain reaches host intrinsics. ## Limits, cancellation, disposal -Per-run: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` aborts every child (a shared `AbortSignal`), rejects waiting `agent()` slots, and makes every future hook call throw `CANCELLED` — the script dies at its next await and the run settles `cancelled`. Once a run settles, stray children a script fired without awaiting are aborted too. Every hook-returned promise carries a no-op rejection consumer, so a dropped promise cannot surface an unhandled rejection (the app boot layer exits the process on those). +Per-run: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` aborts every child (a shared `AbortSignal`), rejects waiting `agent()` slots, and makes every future hook call throw `CANCELLED` — the script dies at its next await and the run settles `cancelled`; a cancellation that lands before the body runs (or before it settles) reports `cancelled` even if the script itself needed no hooks. Once a run settles, stray children a script fired without awaiting are aborted too, and `dispose()` waits for those children to finish disposing (bounded by the grace) before returning. Every hook-returned promise carries a no-op rejection consumer, so a dropped promise cannot surface an unhandled rejection (the app boot layer exits the process on those). **Documented limitations** (the accepted cost of the in-process mechanism; the seam exists so a worker-thread/isolated-vm engine can swap in): vm is NOT a security boundary — scripts are model-written, the same trust level as the model's bash access — and the vm `timeout` covers only the initial synchronous slice, so a pathological synchronous spin after the first await cannot be killed; `dispose()` waits `disposeGraceMs` then ABANDONS such a script (its settlement stays contained, but an abandoned spin would still occupy the event loop). @@ -27,4 +27,4 @@ Per-run: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap | `maxTotalAgents` | `1000` | Total `agent()` calls one run may start (runaway-loop backstop). | | `maxItemsPerCall` | `4096` | Items accepted by one `parallel()`/`pipeline()` call. | | `syncTimeoutMs` | `5000` | vm timeout for the initial synchronous slice and the meta evaluation. | -| `disposeGraceMs` | `5000` | How long `dispose()` waits for a cancelled script before abandoning it. | +| `disposeGraceMs` | `5000` | How long `dispose()` waits for a cancelled script and its children before abandoning them. | diff --git a/packages/workflow/workflow-vm/src/index.ts b/packages/workflow/workflow-vm/src/index.ts index 914ebb3ba6..4f6a506329 100644 --- a/packages/workflow/workflow-vm/src/index.ts +++ b/packages/workflow/workflow-vm/src/index.ts @@ -13,10 +13,12 @@ * is correctness containment, not a sandbox. * - The vm `timeout` covers only the initial SYNCHRONOUS slice of the script; * a pathological synchronous spin after the first await cannot be killed - * in-process. `dispose()` therefore waits a bounded grace and then ABANDONS - * a stuck script: its pending hook promises are already rejected and its - * settlement is contained (no unhandled rejection), but an abandoned - * synchronous spin would still occupy the event loop. + * in-process. `dispose()` waits a bounded grace for the script to settle + * AND its children (stray `agent()` calls included) to finish disposing, + * then ABANDONS whatever is left: pending hook promises are already + * rejected and the script's settlement is contained (no unhandled + * rejection), but an abandoned synchronous spin would still occupy the + * event loop. * * Plugin export shape: a default-exported {@link WorkflowService} subclass * (the class-based service form, like `dsh-bash-local`). @@ -142,12 +144,22 @@ export class VmWorkflowEngine extends WorkflowService { execution.cancel(reason) }, dispose: (): Promise => { - // Idempotent: cancel, then wait min(settle, grace). `result` never - // rejects, so the race needs no rejection handling; an unsettled - // script past the grace is abandoned per the module contract. + // Idempotent: cancel, then wait min(settle + child quiescence, grace). + // `result` and `quiesce()` never reject, so the race needs no + // rejection handling; a script or child still unsettled past the grace + // is abandoned per the module contract. disposed ??= (async () => { execution.cancel('workflow disposed') - await Promise.race([result, sleep(this.config.disposeGraceMs)]) + await Promise.race([ + (async () => { + await result + // The result settles with the SCRIPT; stray children a script + // fired without awaiting are still winding down — dispose must + // not return while they hold live resources. + await execution.quiesce() + })(), + sleep(this.config.disposeGraceMs), + ]) })() return disposed }, diff --git a/packages/workflow/workflow-vm/src/realm.ts b/packages/workflow/workflow-vm/src/realm.ts index 70745cb4f6..3bf59f2a1f 100644 --- a/packages/workflow/workflow-vm/src/realm.ts +++ b/packages/workflow/workflow-vm/src/realm.ts @@ -10,7 +10,13 @@ * host containers, rejecting loud everything JSON cannot carry: * accessor properties, non-plain prototypes, functions, symbols (keys or * values), bigints, non-finite numbers, `undefined` values, cycles, sparse - * arrays, and arrays with non-index own properties. + * arrays, arrays with non-index own properties, and proxies. Proxies are + * rejected via the trap-free native `util.types.isProxy` check BEFORE any + * other inspection — a descriptor walk over a proxy would otherwise run its + * realm-side traps (`ownKeys`, `getOwnPropertyDescriptor`, `getPrototypeOf`) + * on the host stack, outside the vm's timed window, and a throwing trap would + * escape as a raw realm error instead of a {@link MaterializeError}. The same + * check guards the PROTOTYPE position (an object whose prototype is a proxy). * * Host objects are built with `Object.defineProperty` into a fresh `{}` — * never plain `target[key] =` assignment, which a `"__proto__"` key would turn @@ -24,6 +30,8 @@ * @module @deepseek-ai/dsh-workflow-vm/realm */ +import { types } from 'node:util' + /** Thrown by {@link materializeFromRealm}; the caller wraps it into the right `WorkflowError` code. */ export class MaterializeError extends Error { constructor(public readonly path: string, public readonly reason: string) { @@ -36,11 +44,13 @@ export class MaterializeError extends Error { * Whether an object's prototype chain is data-shaped: `null`, or a prototype * whose own prototype is `null` (the realm's `Object.prototype` — which we * cannot compare by identity across realms). A `Date`/`Map`/class instance - * has a longer chain and is rejected. + * has a longer chain and is rejected, as is a proxy sitting in the prototype + * position (checked trap-free BEFORE its own prototype is dereferenced). */ function hasPlainPrototype(value: object): boolean { const proto: unknown = Object.getPrototypeOf(value) if (proto === null) return true + if (types.isProxy(proto)) return false return Object.getPrototypeOf(proto) === null } @@ -81,6 +91,11 @@ function materialize(value: unknown, path: string, seen: Set): unknown { break } if (value === null) return null + // BEFORE anything else touches the object: every inspection below — + // Array.isArray aside — can trigger a proxy trap, running realm code on the + // host stack (module doc). isProxy is a native internal-slot check (no + // traps, catches revoked proxies, realm-agnostic). + if (types.isProxy(value)) throw new MaterializeError(path, 'proxies cannot cross the workflow realm boundary') const objectValue: object = value if (seen.has(objectValue)) throw new MaterializeError(path, 'circular references are not JSON data') seen.add(objectValue) diff --git a/packages/workflow/workflow-vm/src/runtime.ts b/packages/workflow/workflow-vm/src/runtime.ts index 04176a11ac..6c357408a8 100644 --- a/packages/workflow/workflow-vm/src/runtime.ts +++ b/packages/workflow/workflow-vm/src/runtime.ts @@ -9,8 +9,11 @@ * descriptor walks; values ENTERING the realm from the host (`args`, agent() * results) are rebuilt INSIDE the realm through the context's own * `JSON.parse`, so the script never holds an object whose prototype chain - * reaches host intrinsics. Realm functions (pipeline stages, parallel thunks) - * are called, not materialized — their values stay realm-side. + * reaches host intrinsics. The arrays `parallel`/`pipeline` resolve to are + * realm-built for the same reason (their ELEMENTS are realm values already — + * only the container needs rebuilding). Realm functions (pipeline stages, + * parallel thunks) are called, not materialized — their values stay + * realm-side. * * Failure discipline: fatal {@link WorkflowError}s (bad hook arguments, * unsupported options/schemas, tripped caps, seam start failures, @@ -132,7 +135,10 @@ export class WorkflowExecution { private currentPhase: string | undefined private readonly context: vm.Context private readonly realmJsonParse: (text: string) => unknown + private readonly realmArrayFrom: (items: unknown[]) => unknown[] private readonly compiled: vm.Script + /** Every live `agent()` call promise — awaited or stray — for {@link quiesce}. */ + private readonly inFlightAgents = new Set>() constructor( private readonly ctx: Context, @@ -162,9 +168,12 @@ export class WorkflowExecution { // The realm's own JSON.parse — the host→realm rebuild channel. const realmJson = vm.runInContext('JSON', this.context) as { parse(text: string): unknown } this.realmJsonParse = (text: string) => realmJson.parse(text) + // The realm's own Array.from, bound NOW so a script reassigning its + // globals later cannot swap it: combinator results must be realm arrays. + this.realmArrayFrom = vm.runInContext('Array.from.bind(Array)', this.context) as (items: unknown[]) => unknown[] const globals: Record = { - agent: (prompt: unknown, opts?: unknown) => this.contain(this.agent(prompt, opts)), + agent: (prompt: unknown, opts?: unknown) => this.contain(this.track(this.agent(prompt, opts))), parallel: (thunks: unknown) => this.contain(this.parallel(thunks)), pipeline: (items: unknown, ...stages: unknown[]) => this.contain(this.pipeline(items, stages)), phase: (title: unknown) => { this.phase(title) }, @@ -216,8 +225,15 @@ export class WorkflowExecution { */ async drive(): Promise { try { + // Cancelled before the body ever ran (an already-aborted start signal): + // the script must not execute at all, let alone report `completed`. + if (this.isCancelled()) throw this.cancelledError() const scriptPromise = this.compiled.runInContext(this.context, { timeout: this.limits.syncTimeoutMs }) as Promise const raw: unknown = await this.contain(Promise.resolve(scriptPromise)) + // Cancelled while the body ran: a script that settled without touching + // another hook (or without any) must still report `cancelled` — the + // holder asked for cancellation and `completed` would be a lie. + if (this.isCancelled()) throw this.cancelledError() const value = raw === undefined ? null : this.materializeResult(raw) return { value, stopReason: 'completed', agentsStarted: this.started } } catch (error: unknown) { @@ -245,6 +261,31 @@ export class WorkflowExecution { return promise } + /** + * Register one `agent()` call promise for {@link quiesce} tracking; the + * entry drops when the call fully settles (which is AFTER its child's + * `dispose()` — the call wrapper disposes in its `finally`). + */ + private track(promise: Promise): Promise { + this.inFlightAgents.add(promise) + const drop = (): void => { this.inFlightAgents.delete(promise) } + promise.then(drop, drop) + return promise + } + + /** + * Settles once every `agent()` call — awaited or stray — has fully settled, + * INCLUDING each child's `dispose()`. The reap in {@link drive}'s finally + * aborts strays; this is the wait for those aborts to reach quiescence, so + * the engine's `dispose()` cannot return while a child is still winding + * down. Never rejects (the tracked promises' rejections are contained). + */ + async quiesce(): Promise { + while (this.inFlightAgents.size > 0) { + await Promise.allSettled([...this.inFlightAgents]) + } + } + private cancelledError(): WorkflowError { // cancel() arms cancelError before any caller can observe isCancelled() // === true; the fallback guards the type, not a reachable path. @@ -430,7 +471,7 @@ export class WorkflowExecution { } return thunk as () => unknown }) - return Promise.all(thunks.map(async (thunk) => { + const settled = await Promise.all(thunks.map(async (thunk) => { try { return await thunk() } catch (error: unknown) { @@ -438,6 +479,9 @@ export class WorkflowExecution { return null } })) + // The container must be a REALM array (module doc); the elements are + // realm values already. + return this.realmArrayFrom(settled) } /** The `pipeline(items, ...stages)` hook: per-item stage chains, NO cross-stage barrier. */ @@ -455,7 +499,7 @@ export class WorkflowExecution { } return stage as (previous: unknown, item: unknown, index: number) => unknown }) - return Promise.all(rawItems.map(async (item: unknown, index) => { + const settled = await Promise.all(rawItems.map(async (item: unknown, index) => { let value: unknown = item try { for (const stage of stages) { @@ -469,6 +513,9 @@ export class WorkflowExecution { return null } })) + // The container must be a REALM array (module doc); the elements are + // realm values already. + return this.realmArrayFrom(settled) } private assertItemCap(length: number, hook: string): void { diff --git a/packages/workflow/workflow-vm/tests/meta.spec.ts b/packages/workflow/workflow-vm/tests/meta.spec.ts index 4768da49ff..27d18497d0 100644 --- a/packages/workflow/workflow-vm/tests/meta.spec.ts +++ b/packages/workflow/workflow-vm/tests/meta.spec.ts @@ -108,6 +108,14 @@ return 2` expect(error.message).toContain('JSON data') }) + it('rejects a meta literal containing a proxy as META_INVALID — its traps never run', () => { + // bad() rethrows anything that is not a WorkflowError, so a trap firing + // ('trap ran') would fail this test instead of mapping to META_INVALID. + const error = bad('export const meta = { name: "x", description: "d", phases: new Proxy([], { getPrototypeOf() { throw new Error("trap ran") } }) }') + expect(error.code).toBe('META_INVALID') + expect(error.message).toContain('proxies cannot cross') + }) + it('rejects shape violations with EVERY violation listed (META_INVALID)', () => { const error = bad('export const meta = { description: 7, bogus: 1 }\nreturn 1') expect(error.code).toBe('META_INVALID') diff --git a/packages/workflow/workflow-vm/tests/realm.spec.ts b/packages/workflow/workflow-vm/tests/realm.spec.ts index f374706dba..86deb49bd3 100644 --- a/packages/workflow/workflow-vm/tests/realm.spec.ts +++ b/packages/workflow/workflow-vm/tests/realm.spec.ts @@ -81,6 +81,27 @@ describe('materializeFromRealm', () => { expect(materializeFromRealm(inRealm('Object.assign(Object.create(null), { a: 1 })'))).toEqual({ a: 1 }) }) + it('rejects proxies (root, nested, revoked, host-realm) WITHOUT running any trap', () => { + const trapped = inRealm(`new Proxy({ a: 1 }, { + ownKeys() { throw new Error('trap ran') }, + getOwnPropertyDescriptor() { throw new Error('trap ran') }, + getPrototypeOf() { throw new Error('trap ran') }, + })`) + // A trap firing would surface 'trap ran' (a non-MaterializeError) instead. + expect(rejection(trapped)).toContain('proxies cannot cross') + expect(rejection(inRealm('{ nested: new Proxy([], {}) }'))).toContain('value.nested') + const revoked = inRealm('(() => { const r = Proxy.revocable({}, {}); r.revoke(); return r.proxy })()') + expect(rejection(revoked)).toContain('proxies cannot cross') + expect(rejection(new Proxy({}, {}))).toContain('proxies cannot cross') + }) + + it('rejects an object whose PROTOTYPE is a proxy without dereferencing through it', () => { + const value = inRealm(`Object.create(new Proxy({}, { + getPrototypeOf() { throw new Error('trap ran') }, + }))`) + expect(rejection(value)).toContain('exotic prototype') + }) + it('rejects cycles and accepts the same object reused as a sibling (a DAG)', () => { expect(rejection(inRealm('(() => { const o = {}; o.self = o; return o })()'))).toContain('circular') const dag = inRealm('(() => { const leaf = { v: 1 }; return { a: leaf, b: leaf } })()') diff --git a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts index 9403dc912e..30dc0e4dfa 100644 --- a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts +++ b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts @@ -36,6 +36,7 @@ class StubProvider implements SubagentProvider { constructor( readonly name: string, private readonly reply?: (request: SubagentStartRequest, index: number) => SubagentResult, + private readonly disposeDelayMs = 0, ) {} start(request: SubagentStartRequest): SubagentRun { @@ -57,8 +58,17 @@ class StubProvider implements SubagentProvider { settle({ output: [], stopReason: 'aborted' }) }, dispose: () => { - controlled.disposed = true - return Promise.resolve() + if (this.disposeDelayMs === 0) { + controlled.disposed = true + return Promise.resolve() + } + // A slow-winding child (quiescence tests): disposal completes late. + return new Promise((resolve) => { + setTimeout(() => { + controlled.disposed = true + resolve() + }, this.disposeDelayMs) + }) }, } } @@ -73,12 +83,17 @@ interface SetupOptions { config?: Config reply?: (request: SubagentStartRequest, index: number) => SubagentResult manual?: boolean + disposeDelayMs?: number } async function setup(options?: SetupOptions) { const ctx = new Context() await ctx.plugin(SubagentService) - const provider = new StubProvider('stub', options?.manual ? undefined : options?.reply ?? (() => text('stub reply'))) + const provider = new StubProvider( + 'stub', + options?.manual ? undefined : options?.reply ?? (() => text('stub reply')), + options?.disposeDelayMs ?? 0, + ) ctx.subagents.registerProvider(provider) await ctx.plugin(VmWorkflowEngine, { provider: 'stub', ...options?.config }) return { ctx, provider, parent: fakeParent() } @@ -405,6 +420,50 @@ describe('dsh-workflow-vm', () => { expect((await run(ctx, parent, script('return typeof args'))).value).toBe('undefined') }) + it('parallel/pipeline resolve to REALM arrays: instanceof holds in-script, host intrinsics stay unreachable', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script(` + const fromParallel = await parallel([() => agent('a'), () => 'plain']) + const fromPipeline = await pipeline([1], (prev) => prev + 1) + Object.getPrototypeOf(fromParallel).polluted = 'realm-only' + return { + parallelIsRealmArray: fromParallel instanceof Array, + pipelineIsRealmArray: fromPipeline instanceof Array, + values: [fromParallel[1], fromPipeline[0]], + } + `)) + expect(result.stopReason).toBe('completed') + expect(result.value).toEqual({ + parallelIsRealmArray: true, + pipelineIsRealmArray: true, + values: ['plain', 2], + }) + // The script's prototype mutation stayed realm-side: the HOST + // Array.prototype was never reachable through a combinator result. + expect(([] as unknown as Record).polluted).toBeUndefined() + }) + + it('a returned proxy is rejected as RESULT_UNSERIALIZABLE without running its traps', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script(` + return new Proxy({ a: 1 }, { ownKeys() { throw new Error('trap ran') } }) + `)) + expect(result.stopReason).toBe('error') + expect(result.error).toContain('not plain JSON data') + expect(result.error).toContain('proxies cannot cross') + expect(result.error).not.toContain('trap ran') + }) + + it('agent() options passed as a proxy are rejected loudly, traps never invoked', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script(` + return await agent('p', new Proxy({}, { ownKeys() { throw new Error('trap ran') } })) + `)) + expect(result.stopReason).toBe('error') + expect(result.error).toContain('options must be plain JSON data') + expect(result.error).not.toContain('trap ran') + }) + it('a non-JSON return value fails loud as RESULT_UNSERIALIZABLE', async () => { const { ctx, parent } = await setup() const withDate = await run(ctx, parent, script('return { when: new Date(0) }')) @@ -452,6 +511,51 @@ describe('dsh-workflow-vm', () => { await handle.dispose() }) + it('an already-aborted signal cancels a HOOK-FREE script: the body never runs at all', async () => { + const { ctx, parent } = await setup() + const controller = new AbortController() + controller.abort() + const logs: string[] = [] + ctx.on('workflow/log', (_info, message) => { logs.push(message) }) + const handle = ctx.workflows.start({ script: script("log('ran')\nreturn 123"), parent, signal: controller.signal }) + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + expect(result.value).toBeNull() + expect(logs).toEqual([]) + await handle.dispose() + }) + + it('cancel() right after start() reports cancelled even when the script needed no hooks', async () => { + const { ctx, parent } = await setup() + const handle = ctx.workflows.start({ script: script('return 123'), parent }) + handle.cancel('changed my mind') + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + expect(result.value).toBeNull() + expect(result.error).toContain('changed my mind') + await handle.dispose() + }) + + it('an agent() call AFTER a mid-run cancel rejects at entry — no child ever starts', async () => { + const { ctx, parent, provider } = await setup({ manual: true }) + const handle = ctx.workflows.start({ + script: script(` + await agent('first') + return await agent('second') + `), + parent, + }) + await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + // Same synchronous block: the first child settles completed, then the + // cancel lands BEFORE the script's continuation can call agent() again. + provider.runs[0]!.settle(text('first done')) + handle.cancel('mid-run') + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + expect(provider.runs.length).toBe(1) + await handle.dispose() + }) + it('the signal aborting mid-run cancels like cancel()', async () => { const { ctx, parent, provider } = await setup({ manual: true }) const controller = new AbortController() @@ -577,6 +681,24 @@ describe('dsh-workflow-vm', () => { }) await handle.dispose() }) + + it('dispose() waits for a stray child to FINISH disposing (quiescence), not just the script settle', async () => { + const { ctx, parent, provider } = await setup({ manual: true, disposeDelayMs: 40 }) + const handle = ctx.workflows.start({ + script: script(` + agent('stray') + return 'done without awaiting' + `), + parent, + }) + const result = await handle.result + expect(result.stopReason).toBe('completed') + expect(provider.runs.length).toBe(1) + await handle.dispose() + // Not a waitFor: by the time dispose() returns, the slow child disposal + // must already be complete. + expect(provider.runs[0]!.disposed).toBe(true) + }) }) describe('service surface', () => { @@ -595,6 +717,24 @@ describe('dsh-workflow-vm', () => { await second.dispose() }) + it('a listener mutating one event payload cannot corrupt later events (per-emission snapshots)', async () => { + const { ctx, parent } = await setup() + const ends: unknown[] = [] + let endInfo: WorkflowRunInfo | undefined + ctx.on('workflow/agent-start', (info, agent) => { + agent.seq = 999 + agent.label = 'HACKED' + info.meta.name = 'HACKED' + }) + ctx.on('workflow/agent-end', (info, agent) => { + ends.push(agent) + endInfo = info + }) + await run(ctx, parent, script("return await agent('job', { label: 'honest' })")) + expect(ends[0]).toMatchObject({ seq: 1, label: 'honest', outcome: 'completed' }) + expect(endInfo!.meta.name).toBe('test-flow') + }) + it('unregisters ctx.workflows when the engine fiber is disposed (HMR safety)', async () => { const ctx = new Context() await ctx.plugin(SubagentService) diff --git a/packages/workflow/workflow/README.md b/packages/workflow/workflow/README.md index 1dece68d38..46efa2f2d0 100644 --- a/packages/workflow/workflow/README.md +++ b/packages/workflow/workflow/README.md @@ -4,9 +4,9 @@ The **workflow seam** (`ctx.workflows`): an abstract service defining WHAT a wor ## Service: `WorkflowService` (abstract) -`start(request: WorkflowStartRequest): WorkflowRun` — parse and execute a script. Throws synchronously (`SCRIPT_PARSE`/`META_INVALID`) for a script that cannot begin; once a run is returned, its `result` NEVER rejects — every failure resolves with `stopReason: 'error'` (or `'cancelled'`). `dispose()` must reach quiescence within a bounded grace (cancel → wait → abandon), never hanging its caller. +`start(request: WorkflowStartRequest): WorkflowRun` — parse and execute a script. Throws synchronously (`SCRIPT_PARSE`/`META_INVALID`) for a script that cannot begin; once a run is returned, its `result` NEVER rejects — every failure resolves with `stopReason: 'error'` (or `'cancelled'`). `dispose()` must reach quiescence within a bounded grace (cancel → wait for the script to settle and its children to finish disposing → abandon), never hanging its caller. -The protected `emitWorkflowEvent` helper dispatches the `workflow/*` events with PER-LISTENER containment (a throwing subscriber is logged, never propagated, and cannot starve later listeners) — the same guarantee as the subagent seam's lifecycle emits. +The protected `emitWorkflowEvent` helper dispatches the `workflow/*` events with PER-LISTENER containment and PER-LISTENER payload snapshots (a throwing subscriber is logged, never propagated, and cannot starve later listeners; each subscriber gets its own clone of the payload, so mutating it corrupts neither the engine nor other listeners) — the same containment guarantee as the subagent seam's lifecycle emits. ## Vocabulary diff --git a/packages/workflow/workflow/src/index.ts b/packages/workflow/workflow/src/index.ts index ab5e056b37..5f340e2f93 100644 --- a/packages/workflow/workflow/src/index.ts +++ b/packages/workflow/workflow/src/index.ts @@ -13,8 +13,10 @@ * carry {@link WorkflowRunInfo} (id + meta), never the live {@link WorkflowRun} * — a listener must not gain `cancel`/`dispose`; control stays with the * `start()` caller holding the run. Every emit is per-listener contained (a - * throwing subscriber is logged, never propagated), so one bad observer can - * neither strand a live run nor starve later listeners. + * throwing subscriber is logged, never propagated) and every listener gets its + * own payload clone (mutating it corrupts nothing), so one bad observer can + * neither strand a live run, starve later listeners, nor poison another + * listener's view. * * @module @deepseek-ai/dsh-workflow */ @@ -182,8 +184,9 @@ export function isFatalWorkflowError(error: unknown): boolean { * snapshots, per-listener containment); `workflow/end` fires exactly once * per started run, after `result` is settled or as it settles. * - `dispose()` reaches quiescence within a bounded grace: it cancels, waits - * for the script to settle, and abandons a stuck script rather than - * hanging its caller (the engine documents what abandonment leaves behind). + * for the script to settle AND its started children to finish disposing, + * and abandons whatever is left rather than hanging its caller (the engine + * documents what abandonment leaves behind). */ export abstract class WorkflowService extends Service { constructor(ctx: Context) { @@ -199,12 +202,16 @@ export abstract class WorkflowService extends Service { abstract start(request: WorkflowStartRequest): WorkflowRun /** - * Emit one `workflow/*` lifecycle event with PER-LISTENER containment: - * dispatch each subscriber individually and log (never propagate) a thrown - * one, so one bad subscriber can neither fail the engine mid-run, surface as - * an unhandled rejection on a detached settle hook, nor starve the listeners - * registered after it (cordis `emit` halts on the first throw — same - * guarantee as the subagent seam's lifecycle emits). + * Emit one `workflow/*` lifecycle event with PER-LISTENER containment and + * PER-LISTENER payload snapshots: each subscriber is dispatched individually + * with its OWN structural clone of the payload (the payloads are plain JSON + * data by the seam contract), so a listener mutating what it received can + * corrupt neither the engine's live state nor any other listener's or later + * event's view; a thrown listener is logged (never propagated), so one bad + * subscriber can neither fail the engine mid-run, surface as an unhandled + * rejection on a detached settle hook, nor starve the listeners registered + * after it (cordis `emit` halts on the first throw — same guarantee as the + * subagent seam's lifecycle emits). * @param name - the `workflow/*` event to dispatch. * @param args - the event's payload, matching its declared signature. */ @@ -213,7 +220,7 @@ export abstract class WorkflowService extends Service { try { // The declared workflow/* signatures are all void-returning emits; the // dispatch callback applies the payload tuple. - ;(callback as (...payload: unknown[]) => void)(...args) + ;(callback as (...payload: unknown[]) => void)(...structuredClone(args)) } catch (error: unknown) { this.ctx.logger.warn(`workflow: ${name} listener threw: ${String(error)}`) } diff --git a/packages/workflow/workflow/tests/workflow.spec.ts b/packages/workflow/workflow/tests/workflow.spec.ts index a5bd8cd1ed..b303c02962 100644 --- a/packages/workflow/workflow/tests/workflow.spec.ts +++ b/packages/workflow/workflow/tests/workflow.spec.ts @@ -66,6 +66,28 @@ describe('dsh-workflow (interface)', () => { ]) }) + it('gives each listener its OWN payload snapshot: mutation corrupts neither peers nor the caller', async () => { + const ctx = new Context() + await ctx.plugin(StubEngine) + const seen: string[] = [] + ctx.on('workflow/agent-start', (info, agent) => { + agent.label = 'HACKED' + info.meta.name = 'HACKED' + seen.push('mutator') + }) + ctx.on('workflow/agent-start', (info, agent) => { + seen.push(`${info.meta.name}/${agent.label}`) + }) + const engine = ctx.workflows as StubEngine + const info: WorkflowRunInfo = { id: WorkflowRunId('run-2'), meta: { name: 'w', description: 'd' } } + const payload = { seq: 1, label: 'original', childId: 'c' } + engine.emit('workflow/agent-start', info, payload) + expect(seen).toEqual(['mutator', 'w/original']) + // The caller's own objects are pristine too — no listener ever saw them. + expect(info.meta.name).toBe('w') + expect(payload.label).toBe('original') + }) + it('contains a throwing listener PER LISTENER: later listeners still run, nothing propagates', async () => { const ctx = new Context() await ctx.plugin(StubEngine) From 57b9910339658b17c86eea0eb8aa2b3406fb563b Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 5 Jul 2026 19:39:19 +0800 Subject: [PATCH 014/232] workflow: total, contained rendering of hostile thrown script values MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Codex code-review round 2: errorText() read .stack/.message as plain property gets and fell back to String(error) — a script throwing a value with a throwing accessor (or toString/Symbol.toPrimitive) ran realm code in drive()'s catch and made WorkflowRun.result REJECT, which the detached workflow/end hook turned into an unhandledRejection (process death under dsh-app-boot). Replaced with describeThrown in dsh-workflow-vm/realm: total (never throws), proxy-labelling before any inspection, own-descriptor reads, String() only on primitives, and a CONTAINED stack-getter invocation — modern V8 (Node >= 22) makes stack an own ACCESSOR on genuine Errors, so refusing all accessors would lose every real stack and the lineOffset line numbers; a hostile getter's throw is swallowed and rendering falls back to message. The meta-literal eval catch had the same String(error) exposure and now uses the same renderer. Regression tests: a hostile-thrown-values table through the real engine (throwing stack/message getters, data stack, setter-only stack, proxy, Symbol.toPrimitive, function, null) asserting result resolves 'error' with the expected rendering and NO unhandledRejection fires; a meta-path hostile throw mapping to META_INVALID. --- .../feature/2026-07-05-dynamic-workflows.md | 2 +- packages/workflow/workflow-vm/README.md | 2 +- packages/workflow/workflow-vm/src/meta.ts | 7 +- packages/workflow/workflow-vm/src/realm.ts | 72 +++++++++++++++++++ packages/workflow/workflow-vm/src/runtime.ts | 22 ++---- .../workflow/workflow-vm/tests/meta.spec.ts | 7 ++ .../workflow-vm/tests/workflow-vm.spec.ts | 33 +++++++++ 7 files changed, 124 insertions(+), 21 deletions(-) diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index 35b65e3fb2..c1fbbe7427 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -30,7 +30,7 @@ One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferre **Realm boundary**: values entering the host (meta, hook options, schemas, the return value) go through `materializeFromRealm` — a descriptor walk that NEVER invokes accessors (the repo's `isJsonValue` is prototype-strict and getter-invoking, so it cannot run first; it would reject every cross-realm object and let realm code run outside the timed window) and rejects loud everything JSON cannot carry, proxies included (the trap-free `util.types.isProxy`, checked before any inspection, so realm-side traps never run on the host stack), copying via `Object.defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Values entering the realm (`args`, `agent()` results) are rebuilt INSIDE the realm via the context's own `JSON.parse`, and `parallel`/`pipeline` resolve to realm-built arrays, so the script never holds a live host-prototype object. Realm functions (stages, thunks) are called, never materialized. -**Containment**: every hook-returned promise carries a no-op rejection consumer, so a script that drops a promise cannot surface an unhandled rejection when cancellation rejects it — `dsh-app-boot` exits the process on unhandled rejections. Caps (`maxConcurrentAgents` auto = `min(16, cores - 2)`, `maxTotalAgents` 1000, `maxItemsPerCall` 4096) and timeouts are validated Config, not literals. +**Containment**: every hook-returned promise carries a no-op rejection consumer, so a script that drops a promise cannot surface an unhandled rejection when cancellation rejects it — `dsh-app-boot` exits the process on unhandled rejections. Thrown script values (and meta-evaluation throws) are rendered by the total `describeThrown` — fixed labels for proxies/functions, own-descriptor reads, `String()` only on primitives, and a CONTAINED stack-getter call (modern V8 makes `stack` an own accessor on real Errors; a hostile getter's throw is swallowed) — so a hostile thrown value can neither escape the catch path raw nor make `result` reject. Caps (`maxConcurrentAgents` auto = `min(16, cores - 2)`, `maxTotalAgents` 1000, `maxItemsPerCall` 4096) and timeouts are validated Config, not literals. ### The consumer (dsh-tool-workflow) diff --git a/packages/workflow/workflow-vm/README.md b/packages/workflow/workflow-vm/README.md index 0ba1173f23..1efe4eb5af 100644 --- a/packages/workflow/workflow-vm/README.md +++ b/packages/workflow/workflow-vm/README.md @@ -14,7 +14,7 @@ Values ENTERING the host (the meta literal, hook options/schemas, the script's r ## Limits, cancellation, disposal -Per-run: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` aborts every child (a shared `AbortSignal`), rejects waiting `agent()` slots, and makes every future hook call throw `CANCELLED` — the script dies at its next await and the run settles `cancelled`; a cancellation that lands before the body runs (or before it settles) reports `cancelled` even if the script itself needed no hooks. Once a run settles, stray children a script fired without awaiting are aborted too, and `dispose()` waits for those children to finish disposing (bounded by the grace) before returning. Every hook-returned promise carries a no-op rejection consumer, so a dropped promise cannot surface an unhandled rejection (the app boot layer exits the process on those). +Per-run: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` aborts every child (a shared `AbortSignal`), rejects waiting `agent()` slots, and makes every future hook call throw `CANCELLED` — the script dies at its next await and the run settles `cancelled`; a cancellation that lands before the body runs (or before it settles) reports `cancelled` even if the script itself needed no hooks. Once a run settles, stray children a script fired without awaiting are aborted too, and `dispose()` waits for those children to finish disposing (bounded by the grace) before returning. Every hook-returned promise carries a no-op rejection consumer, so a dropped promise cannot surface an unhandled rejection (the app boot layer exits the process on those), and thrown script values are rendered by the total `describeThrown` (proxy-labelling, own-descriptor reads, a contained stack-getter call), so a hostile throw (`{ get stack() { throw ... } }`) cannot make `result` reject. **Documented limitations** (the accepted cost of the in-process mechanism; the seam exists so a worker-thread/isolated-vm engine can swap in): vm is NOT a security boundary — scripts are model-written, the same trust level as the model's bash access — and the vm `timeout` covers only the initial synchronous slice, so a pathological synchronous spin after the first await cannot be killed; `dispose()` waits `disposeGraceMs` then ABANDONS such a script (its settlement stays contained, but an abandoned spin would still occupy the event loop). diff --git a/packages/workflow/workflow-vm/src/meta.ts b/packages/workflow/workflow-vm/src/meta.ts index bb97ad7d39..edf95eb22c 100644 --- a/packages/workflow/workflow-vm/src/meta.ts +++ b/packages/workflow/workflow-vm/src/meta.ts @@ -20,7 +20,7 @@ import * as vm from 'node:vm' import { WorkflowError } from '@deepseek-ai/dsh-workflow' import type { WorkflowMeta, WorkflowPhase } from '@deepseek-ai/dsh-workflow' -import { materializeFromRealm, MaterializeError } from './realm.ts' +import { materializeFromRealm, MaterializeError, describeThrown } from './realm.ts' /** The result of {@link extractMeta}: the validated meta and the runnable body. */ export interface ExtractedScript { @@ -174,7 +174,10 @@ export function extractMeta(script: string, evalTimeoutMs: number): ExtractedScr // below are part of the same boundary. evaluated = vm.runInNewContext(`(${literal})`, undefined, { timeout: evalTimeoutMs }) } catch (error: unknown) { - throw new WorkflowError(`meta block failed to evaluate as a pure literal: ${String(error)}`, 'META_INVALID', { cause: error }) + // describeThrown, not String(): an expression in the literal can THROW a + // hostile value (a throwing toString/accessor), and this catch must map + // it to META_INVALID rather than let realm code run or a raw error escape. + throw new WorkflowError(`meta block failed to evaluate as a pure literal: ${describeThrown(error)}`, 'META_INVALID', { cause: error }) } let data: unknown try { diff --git a/packages/workflow/workflow-vm/src/realm.ts b/packages/workflow/workflow-vm/src/realm.ts index 3bf59f2a1f..b1389a999c 100644 --- a/packages/workflow/workflow-vm/src/realm.ts +++ b/packages/workflow/workflow-vm/src/realm.ts @@ -27,6 +27,11 @@ * chain, so the engine rebuilds inbound values INSIDE the realm via the * context's own `JSON.parse` (see the runtime). * + * {@link describeThrown} is the same discipline for the one place realm + * values reach the host WITHOUT materialization: rendering a thrown value + * for a failure report. It never throws; the only realm code it can invoke + * is a stack getter, contained (see its doc). + * * @module @deepseek-ai/dsh-workflow-vm/realm */ @@ -40,6 +45,73 @@ export class MaterializeError extends Error { } } +/** + * Render a value THROWN by realm code (a script failure, a meta-literal + * evaluation failure) as text, without ever throwing itself — the callers sit + * in catch blocks whose totality is a seam contract (`WorkflowRun.result` + * never rejects). Plain property reads and `String(value)` are hostile-value + * hazards (`{ get stack() { throw ... } }`, a throwing + * `toString`/`Symbol.toPrimitive`), so: proxies render as a fixed label + * (trap-free `isProxy`, before any inspection); `message` is read as an OWN + * DATA descriptor only; everything else object-shaped renders as + * `[object Object]` without being touched; only primitives (which cannot + * carry code) reach `String()`. The one exception is the `stack` getter — + * modern V8 makes `stack` an own ACCESSOR on genuine `Error`s, so it is + * invoked (that is how real stacks, with the script's own line numbers via + * the compile lineOffset, are obtained) but CONTAINED: a hostile getter's + * throw is swallowed and rendering falls back to message. Detection is + * structural, not `instanceof` — a realm Error is not an instance of the host + * class. + * @param error - the thrown value, of any shape and any realm. + * @returns human-readable text for the failure report; prefers the stack. + */ +export function describeThrown(error: unknown): string { + switch (typeof error) { + case 'object': + break + case 'function': + return '[thrown function]' + default: + // Primitives (string/number/boolean/bigint/symbol/undefined): String() + // cannot reach user code on these. + return String(error) + } + if (error === null) return 'null' + if (types.isProxy(error)) return '[thrown proxy]' + const stack = readStack(error) + if (typeof stack === 'string' && stack.length > 0) return stack + const message = ownDataProperty(error, 'message') + if (typeof message === 'string') return message + return '[object Object]' +} + +/** + * Read `error.stack`, tolerating both descriptor shapes: an own DATA property + * (older V8, plain objects) and the modern own ACCESSOR pair (the Error Stack + * Accessor proposal). Invoking the getter is the only way to obtain a real + * stack; on a hostile object that getter is user code, so the call is + * contained — a throw yields `undefined` (the caller falls back to message), + * and a synchronous spin is the engine's already-accepted post-await + * limitation (a script can spin directly just the same). + */ +function readStack(error: object): unknown { + const descriptor = Object.getOwnPropertyDescriptor(error, 'stack') + if (descriptor === undefined) return undefined + if ('value' in descriptor) return descriptor.value + if (typeof descriptor.get !== 'function') return undefined + try { + return descriptor.get.call(error) + } catch { + return undefined // a hostile stack getter threw; message/fallback renders instead + } +} + +/** An own DATA property's value (`undefined` for absent or accessor); never invokes user code on a non-proxy object. */ +function ownDataProperty(value: object, key: string): unknown { + const descriptor = Object.getOwnPropertyDescriptor(value, key) + return descriptor !== undefined && 'value' in descriptor ? descriptor.value : undefined +} + /** * Whether an object's prototype chain is data-shaped: `null`, or a prototype * whose own prototype is `null` (the realm's `Object.prototype` — which we diff --git a/packages/workflow/workflow-vm/src/runtime.ts b/packages/workflow/workflow-vm/src/runtime.ts index 6c357408a8..c108d2cf69 100644 --- a/packages/workflow/workflow-vm/src/runtime.ts +++ b/packages/workflow/workflow-vm/src/runtime.ts @@ -41,7 +41,7 @@ import type { WorkflowMeta, WorkflowResult, } from '@deepseek-ai/dsh-workflow' -import { materializeFromRealm, MaterializeError } from './realm.ts' +import { materializeFromRealm, MaterializeError, describeThrown } from './realm.ts' /** The per-run knobs the engine resolves from its Config. */ export interface ExecutionLimits { @@ -97,21 +97,6 @@ function outputText(blocks: ContentBlock[]): string { .join('') } -/** - * Render a script failure for the result: prefer the stack (it carries the - * script's own line numbers via the compile lineOffset), then the message. - * STRUCTURAL detection, not `instanceof Error` — a realm-thrown Error is not - * an instance of the host Error class. - */ -function errorText(error: unknown): string { - if (typeof error === 'object' && error !== null) { - const maybe = error as { stack?: unknown; message?: unknown } - if (typeof maybe.stack === 'string' && maybe.stack.length > 0) return maybe.stack - if (typeof maybe.message === 'string') return maybe.message - } - return String(error) -} - /** A short display label derived from the prompt when the script passes none. */ function defaultLabel(prompt: string): string { const newline = prompt.indexOf('\n') @@ -240,7 +225,10 @@ export class WorkflowExecution { if (error instanceof WorkflowError && error.code === 'CANCELLED') { return { value: null, stopReason: 'cancelled', error: error.message, agentsStarted: this.started } } - return { value: null, stopReason: 'error', error: errorText(error), agentsStarted: this.started } + // describeThrown is total and trap-free: a hostile thrown value (a + // throwing accessor, a proxy) cannot make this catch throw — drive() + // resolving is the `result` never-rejects seam contract. + return { value: null, stopReason: 'error', error: describeThrown(error), agentsStarted: this.started } } finally { // Reap strays: a script that fired agent() calls without awaiting them // leaves live children behind after settlement — abort them all. (The diff --git a/packages/workflow/workflow-vm/tests/meta.spec.ts b/packages/workflow/workflow-vm/tests/meta.spec.ts index 27d18497d0..7b5a929046 100644 --- a/packages/workflow/workflow-vm/tests/meta.spec.ts +++ b/packages/workflow/workflow-vm/tests/meta.spec.ts @@ -116,6 +116,13 @@ return 2` expect(error.message).toContain('proxies cannot cross') }) + it('a meta expression THROWING a hostile value maps to META_INVALID — rendering runs no realm code', () => { + const error = bad('export const meta = { name: (() => { throw { get stack() { throw new Error("boom") }, toString() { throw new Error("boom") } } })(), description: "d" }\nreturn 1') + expect(error.code).toBe('META_INVALID') + expect(error.message).toContain('pure literal') + expect(error.message).toContain('[object Object]') + }) + it('rejects shape violations with EVERY violation listed (META_INVALID)', () => { const error = bad('export const meta = { description: 7, bogus: 1 }\nreturn 1') expect(error.code).toBe('META_INVALID') diff --git a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts index 30dc0e4dfa..e0518c8192 100644 --- a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts +++ b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts @@ -589,6 +589,39 @@ describe('dsh-workflow-vm', () => { expect(result.error).toBe('[object Object]') }) + it('hostile thrown values render contained: result NEVER rejects, no unhandled rejection', async () => { + const unhandled: unknown[] = [] + const onUnhandled = (reason: unknown): void => { unhandled.push(reason) } + process.on('unhandledRejection', onUnhandled) + try { + const { ctx, parent } = await setup() + // Each thrown value would run realm code (or throw) under a plain + // property read or String(); rendering must stay total — the only + // permitted realm call is the CONTAINED stack getter. + const cases: [string, string][] = [ + ["throw { get stack() { throw new Error('stack getter threw') } }", '[object Object]'], + ["throw { get stack() { throw new Error('x') }, message: 'getter threw, message renders' }", 'getter threw, message renders'], + ["throw { get message() { throw new Error('message getter ran') } }", '[object Object]'], + ["throw { stack: 'custom data stack' }", 'custom data stack'], + ["throw (() => { const o = { message: 'setter-only stack' }; Object.defineProperty(o, 'stack', { set() {} }); return o })()", 'setter-only stack'], + ["throw new Proxy({}, { getOwnPropertyDescriptor() { throw new Error('trap ran') } })", '[thrown proxy]'], + ["throw { [Symbol.toPrimitive]() { throw new Error('toPrimitive ran') } }", '[object Object]'], + ['throw () => 1', '[thrown function]'], + ['throw null', 'null'], + ] + for (const [body, rendered] of cases) { + const result = await run(ctx, parent, script(body)) + expect(result.stopReason).toBe('error') + expect(result.error).toBe(rendered) + } + // Let any stray rejection reach the process hook before asserting. + await new Promise(resolve => setTimeout(resolve, 20)) + expect(unhandled).toEqual([]) + } finally { + process.off('unhandledRejection', onUnhandled) + } + }) + it('falls back to the message for an Error whose stack was stripped', async () => { const { ctx, parent } = await setup() const result = await run(ctx, parent, script(` From fff2e1f33ddf97e45fd868885d990f604476dbe4 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 5 Jul 2026 20:32:35 +0800 Subject: [PATCH 015/232] workflow: render thrown script values inside the realm's execution window MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Codex code-review round 3: the round-2 'contained stack getter' still let a script escape the vm sync-slice timeout — throw { get stack() { while(true){} } } put the spin on the HOST catch path, where no timeout applies (verified: a direct sync-slice spin dies by the timeout; the getter-hidden one hung the process). Identity-trusting the native getter is also insufficient: V8 stack formatting reads script-controllable hooks at format time (Error.prepareStackTrace, a subclass name getter — both empirically confirmed), so ANY host-side formatting of a realm error can run realm code. The fix moves rendering into the realm itself: the compiled body (and the meta literal) is wrapped in a realm-side catch that pre-renders the thrown value to a string (REALM_THROWN_RENDERER_SOURCE) — a hostile accessor/toString now runs as ordinary script code, killed by the sync-slice timeout or falling under the documented post-await spin limitation; host WorkflowErrors pass through for the CANCELLED mapping. The host catch descriptor-reads the pre-rendered string (thrownRendering) or falls back to describeThrown, which invokes no getter whose identity is not the host realm's own native stack getter. Tests: hostile-table expectations updated for realm-side rendering; new regressions for the getter-hidden sync spin dying by the vm timeout (engine + meta paths) and for a hostile thenable rejection that bypasses the realm wrapper (renders host-side, proxy labelled, traps never run); describeThrown/ thrownRendering unit tables including the realm-error identity-mismatch case. --- .../feature/2026-07-05-dynamic-workflows.md | 2 +- packages/workflow/workflow-vm/README.md | 2 +- packages/workflow/workflow-vm/src/meta.ts | 22 ++-- packages/workflow/workflow-vm/src/realm.ts | 108 ++++++++++++------ packages/workflow/workflow-vm/src/runtime.ts | 27 +++-- .../workflow/workflow-vm/tests/meta.spec.ts | 17 ++- .../workflow/workflow-vm/tests/realm.spec.ts | 45 +++++++- .../workflow-vm/tests/workflow-vm.spec.ts | 37 ++++-- 8 files changed, 199 insertions(+), 61 deletions(-) diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index c1fbbe7427..6f8678ecea 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -30,7 +30,7 @@ One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferre **Realm boundary**: values entering the host (meta, hook options, schemas, the return value) go through `materializeFromRealm` — a descriptor walk that NEVER invokes accessors (the repo's `isJsonValue` is prototype-strict and getter-invoking, so it cannot run first; it would reject every cross-realm object and let realm code run outside the timed window) and rejects loud everything JSON cannot carry, proxies included (the trap-free `util.types.isProxy`, checked before any inspection, so realm-side traps never run on the host stack), copying via `Object.defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Values entering the realm (`args`, `agent()` results) are rebuilt INSIDE the realm via the context's own `JSON.parse`, and `parallel`/`pipeline` resolve to realm-built arrays, so the script never holds a live host-prototype object. Realm functions (stages, thunks) are called, never materialized. -**Containment**: every hook-returned promise carries a no-op rejection consumer, so a script that drops a promise cannot surface an unhandled rejection when cancellation rejects it — `dsh-app-boot` exits the process on unhandled rejections. Thrown script values (and meta-evaluation throws) are rendered by the total `describeThrown` — fixed labels for proxies/functions, own-descriptor reads, `String()` only on primitives, and a CONTAINED stack-getter call (modern V8 makes `stack` an own accessor on real Errors; a hostile getter's throw is swallowed) — so a hostile thrown value can neither escape the catch path raw nor make `result` reject. Caps (`maxConcurrentAgents` auto = `min(16, cores - 2)`, `maxTotalAgents` 1000, `maxItemsPerCall` 4096) and timeouts are validated Config, not literals. +**Containment**: every hook-returned promise carries a no-op rejection consumer, so a script that drops a promise cannot surface an unhandled rejection when cancellation rejects it — `dsh-app-boot` exits the process on unhandled rejections. Thrown script/meta values are pre-rendered to a string by a realm-side catch compiled into the wrapper (rendering runs inside the realm's own execution window, so a hostile `stack` getter dies by the vm sync-slice timeout like any other script code — host-side formatting of realm errors is unfixable in general, since V8 stack formatting invokes script-controllable `name`/`prepareStackTrace` hooks); the host catch descriptor-reads that string or falls back to `describeThrown` (fixed labels, own-data reads, an identity-verified host-native stack getter), so `result` cannot reject. Caps (`maxConcurrentAgents` auto = `min(16, cores - 2)`, `maxTotalAgents` 1000, `maxItemsPerCall` 4096) and timeouts are validated Config, not literals. ### The consumer (dsh-tool-workflow) diff --git a/packages/workflow/workflow-vm/README.md b/packages/workflow/workflow-vm/README.md index 1efe4eb5af..e519ce7c0e 100644 --- a/packages/workflow/workflow-vm/README.md +++ b/packages/workflow/workflow-vm/README.md @@ -14,7 +14,7 @@ Values ENTERING the host (the meta literal, hook options/schemas, the script's r ## Limits, cancellation, disposal -Per-run: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` aborts every child (a shared `AbortSignal`), rejects waiting `agent()` slots, and makes every future hook call throw `CANCELLED` — the script dies at its next await and the run settles `cancelled`; a cancellation that lands before the body runs (or before it settles) reports `cancelled` even if the script itself needed no hooks. Once a run settles, stray children a script fired without awaiting are aborted too, and `dispose()` waits for those children to finish disposing (bounded by the grace) before returning. Every hook-returned promise carries a no-op rejection consumer, so a dropped promise cannot surface an unhandled rejection (the app boot layer exits the process on those), and thrown script values are rendered by the total `describeThrown` (proxy-labelling, own-descriptor reads, a contained stack-getter call), so a hostile throw (`{ get stack() { throw ... } }`) cannot make `result` reject. +Per-run: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` aborts every child (a shared `AbortSignal`), rejects waiting `agent()` slots, and makes every future hook call throw `CANCELLED` — the script dies at its next await and the run settles `cancelled`; a cancellation that lands before the body runs (or before it settles) reports `cancelled` even if the script itself needed no hooks. Once a run settles, stray children a script fired without awaiting are aborted too, and `dispose()` waits for those children to finish disposing (bounded by the grace) before returning. Every hook-returned promise carries a no-op rejection consumer, so a dropped promise cannot surface an unhandled rejection (the app boot layer exits the process on those). Thrown script values are pre-rendered to a string INSIDE the realm's execution window (the body is compiled into a realm-side catch), so a hostile `stack` getter is subject to the vm sync-slice timeout like any other script code; the host catch only descriptor-reads that string, falling back to `describeThrown` (fixed labels, own-data reads, an identity-verified host-native stack getter) — `result` cannot reject. **Documented limitations** (the accepted cost of the in-process mechanism; the seam exists so a worker-thread/isolated-vm engine can swap in): vm is NOT a security boundary — scripts are model-written, the same trust level as the model's bash access — and the vm `timeout` covers only the initial synchronous slice, so a pathological synchronous spin after the first await cannot be killed; `dispose()` waits `disposeGraceMs` then ABANDONS such a script (its settlement stays contained, but an abandoned spin would still occupy the event loop). diff --git a/packages/workflow/workflow-vm/src/meta.ts b/packages/workflow/workflow-vm/src/meta.ts index edf95eb22c..bcb891e85e 100644 --- a/packages/workflow/workflow-vm/src/meta.ts +++ b/packages/workflow/workflow-vm/src/meta.ts @@ -20,7 +20,7 @@ import * as vm from 'node:vm' import { WorkflowError } from '@deepseek-ai/dsh-workflow' import type { WorkflowMeta, WorkflowPhase } from '@deepseek-ai/dsh-workflow' -import { materializeFromRealm, MaterializeError, describeThrown } from './realm.ts' +import { materializeFromRealm, MaterializeError, describeThrown, thrownRendering, REALM_THROWN_RENDERER_SOURCE } from './realm.ts' /** The result of {@link extractMeta}: the validated meta and the runnable body. */ export interface ExtractedScript { @@ -171,13 +171,21 @@ export function extractMeta(script: string, evalTimeoutMs: number): ExtractedScr // An EMPTY context: any non-literal reference (a variable, a call) throws // here. The result — data only — is what the contract checks; a getter or // IIFE can still run, which is why the timeout and the materialization - // below are part of the same boundary. - evaluated = vm.runInNewContext(`(${literal})`, undefined, { timeout: evalTimeoutMs }) + // below are part of the same boundary. A thrown value is pre-rendered by + // the realm-side catch INSIDE the timed window, so a hostile + // stack/message/toString can neither run on the host catch path nor + // outlive the timeout. + evaluated = vm.runInNewContext( + `(() => { try { return (${literal}) } catch (e) { throw (${REALM_THROWN_RENDERER_SOURCE})(e) } })()`, + undefined, + { timeout: evalTimeoutMs }, + ) } catch (error: unknown) { - // describeThrown, not String(): an expression in the literal can THROW a - // hostile value (a throwing toString/accessor), and this catch must map - // it to META_INVALID rather than let realm code run or a raw error escape. - throw new WorkflowError(`meta block failed to evaluate as a pure literal: ${describeThrown(error)}`, 'META_INVALID', { cause: error }) + throw new WorkflowError( + `meta block failed to evaluate as a pure literal: ${thrownRendering(error) ?? describeThrown(error)}`, + 'META_INVALID', + { cause: error }, + ) } let data: unknown try { diff --git a/packages/workflow/workflow-vm/src/realm.ts b/packages/workflow/workflow-vm/src/realm.ts index b1389a999c..fca93caac4 100644 --- a/packages/workflow/workflow-vm/src/realm.ts +++ b/packages/workflow/workflow-vm/src/realm.ts @@ -27,10 +27,16 @@ * chain, so the engine rebuilds inbound values INSIDE the realm via the * context's own `JSON.parse` (see the runtime). * - * {@link describeThrown} is the same discipline for the one place realm - * values reach the host WITHOUT materialization: rendering a thrown value - * for a failure report. It never throws; the only realm code it can invoke - * is a stack getter, contained (see its doc). + * {@link REALM_THROWN_RENDERER_SOURCE}, {@link thrownRendering}, and + * {@link describeThrown} are the same discipline for the one place realm + * values reach the host WITHOUT materialization: a thrown value crossing into + * a host catch block. The renderer runs INSIDE the realm's own execution + * window (compiled into the script wrapper), so reading a hostile + * accessor/`toString` there is subject to the vm sync-slice timeout exactly + * like any other script code; the host side only descriptor-reads the + * pre-rendered string, or falls back to {@link describeThrown}, which invokes + * no getter whose function identity is not the host realm's own native stack + * getter. * * @module @deepseek-ai/dsh-workflow-vm/realm */ @@ -46,22 +52,66 @@ export class MaterializeError extends Error { } /** - * Render a value THROWN by realm code (a script failure, a meta-literal - * evaluation failure) as text, without ever throwing itself — the callers sit - * in catch blocks whose totality is a seam contract (`WorkflowRun.result` - * never rejects). Plain property reads and `String(value)` are hostile-value - * hazards (`{ get stack() { throw ... } }`, a throwing - * `toString`/`Symbol.toPrimitive`), so: proxies render as a fixed label - * (trap-free `isProxy`, before any inspection); `message` is read as an OWN - * DATA descriptor only; everything else object-shaped renders as - * `[object Object]` without being touched; only primitives (which cannot - * carry code) reach `String()`. The one exception is the `stack` getter — - * modern V8 makes `stack` an own ACCESSOR on genuine `Error`s, so it is - * invoked (that is how real stacks, with the script's own line numbers via - * the compile lineOffset, are obtained) but CONTAINED: a hostile getter's - * throw is swallowed and rendering falls back to message. Detection is - * structural, not `instanceof` — a realm Error is not an instance of the host - * class. + * Realm-SOURCE text (an arrow-function expression) the engine compiles into + * its script wrappers: `throw (RENDERER)(e)` inside a catch around the whole + * body/literal. It renders the thrown value to a string INSIDE the realm's + * own execution window — a hostile `stack`/`message` accessor or `toString` + * invoked here is subject to the vm sync-slice timeout like any other script + * code (and post-await it is the engine's accepted spin limitation, identical + * to a script reading `e.stack` in its own catch). Host `WorkflowError`s + * thrown by hooks pass through unwrapped (duck-checked by name — a realm + * forgery fails the host's `instanceof` and merely renders data-only); + * everything else becomes `{ __wfThrown: }`, whose only consumer is + * {@link thrownRendering}. Every read is individually contained, so the + * renderer itself never throws. + */ +export const REALM_THROWN_RENDERER_SOURCE = `(e) => { + try { if (e && e.name === 'WorkflowError') return e } catch { /* hostile name getter: fall through to rendering */ } + const rendered = (() => { + try { if (e && typeof e.stack === 'string' && e.stack.length > 0) return e.stack } catch { /* hostile stack getter */ } + try { if (e && typeof e.message === 'string') return e.message } catch { /* hostile message getter */ } + try { return String(e) } catch { /* hostile toString/Symbol.toPrimitive */ } + return '[unrenderable thrown value]' + })() + return { __wfThrown: rendered } +}` + +/** + * The pre-rendered failure text carried by a realm-catch wrapper object + * (`{ __wfThrown: string }` from {@link REALM_THROWN_RENDERER_SOURCE}), or + * `undefined` when `error` is not such a wrapper. Descriptor-read and + * proxy-guarded: never invokes user code. + * @param error - the value a host catch received from script execution. + * @returns the realm-rendered string, or `undefined` to fall back to + * {@link describeThrown}. + */ +export function thrownRendering(error: unknown): string | undefined { + if (typeof error !== 'object' || error === null || types.isProxy(error)) return undefined + const value = ownDataProperty(error, '__wfThrown') + return typeof value === 'string' ? value : undefined +} + +/** + * The host realm's own native `stack` getter (modern V8 makes `stack` an own + * ACCESSOR on Errors); `undefined` where it is a data property. Typed through + * a structural view of the descriptor — it is only ever identity-compared or + * `.call`ed on an explicit receiver, never invoked unbound. + */ +const HOST_STACK_GETTER: unknown = (Object.getOwnPropertyDescriptor(new Error(), 'stack') as { get?: unknown } | undefined)?.get + +/** + * Render a thrown value HOST-SIDE without ever throwing and without running + * any code the host does not own: proxies become a fixed label (trap-free + * `isProxy` before any inspection); `stack` is read as an own data descriptor, + * or through its getter ONLY when that getter's function identity is the host + * realm's own native stack getter (an unforgeable check — realm code cannot + * hold that identity, and the host realm's `prepareStackTrace` is the host's + * own trust domain); `message` is an own-data read; anything else + * object-shaped renders as `[object Object]` untouched; only primitives + * (which cannot carry code) reach `String()`. Used for host-thrown errors + * (vm timeouts, `WorkflowError`s) and as the fallback for adversarial values + * that bypassed the realm-side renderer (e.g. a hostile thenable rejection); + * ordinary script failures arrive pre-rendered via {@link thrownRendering}. * @param error - the thrown value, of any shape and any realm. * @returns human-readable text for the failure report; prefers the stack. */ @@ -86,24 +136,18 @@ export function describeThrown(error: unknown): string { } /** - * Read `error.stack`, tolerating both descriptor shapes: an own DATA property - * (older V8, plain objects) and the modern own ACCESSOR pair (the Error Stack - * Accessor proposal). Invoking the getter is the only way to obtain a real - * stack; on a hostile object that getter is user code, so the call is - * contained — a throw yields `undefined` (the caller falls back to message), - * and a synchronous spin is the engine's already-accepted post-await - * limitation (a script can spin directly just the same). + * Read `error.stack` without running foreign code: an own DATA descriptor is + * read directly; an accessor is invoked only on function identity with + * {@link HOST_STACK_GETTER} (never a realm or user function). The native + * getter returns `undefined` on a non-Error receiver rather than throwing. */ function readStack(error: object): unknown { const descriptor = Object.getOwnPropertyDescriptor(error, 'stack') if (descriptor === undefined) return undefined if ('value' in descriptor) return descriptor.value if (typeof descriptor.get !== 'function') return undefined - try { - return descriptor.get.call(error) - } catch { - return undefined // a hostile stack getter threw; message/fallback renders instead - } + if (descriptor.get !== HOST_STACK_GETTER) return undefined + return descriptor.get.call(error) } /** An own DATA property's value (`undefined` for absent or accessor); never invokes user code on a non-proxy object. */ diff --git a/packages/workflow/workflow-vm/src/runtime.ts b/packages/workflow/workflow-vm/src/runtime.ts index c108d2cf69..892b7c781d 100644 --- a/packages/workflow/workflow-vm/src/runtime.ts +++ b/packages/workflow/workflow-vm/src/runtime.ts @@ -41,7 +41,7 @@ import type { WorkflowMeta, WorkflowResult, } from '@deepseek-ai/dsh-workflow' -import { materializeFromRealm, MaterializeError, describeThrown } from './realm.ts' +import { materializeFromRealm, MaterializeError, describeThrown, thrownRendering, REALM_THROWN_RENDERER_SOURCE } from './realm.ts' /** The per-run knobs the engine resolves from its Config. */ export interface ExecutionLimits { @@ -137,13 +137,19 @@ export class WorkflowExecution { ) { // Compile FIRST: a body syntax error must throw out of the constructor // (the engine maps it to SCRIPT_PARSE) before any realm state exists. + // The body is wrapped in a realm-side catch that pre-renders any thrown + // value to a string (see REALM_THROWN_RENDERER_SOURCE) — rendering happens + // inside the realm's own execution window, never on a host catch path. // lineOffset compensates for the wrapper line, so stack traces carry the // script's own line numbers (the meta statement was blanked, not removed). try { - this.compiled = new vm.Script(`(async () => {\n${body}\n})()`, { - filename: `workflow:${meta.name}`, - lineOffset: -1, - }) + this.compiled = new vm.Script( + `(async () => { try {\n${body}\n} catch (e) { throw (${REALM_THROWN_RENDERER_SOURCE})(e) } })()`, + { + filename: `workflow:${meta.name}`, + lineOffset: -1, + }, + ) } catch (error: unknown) { throw new WorkflowError(`workflow script does not parse: ${String(error)}`, 'SCRIPT_PARSE', { cause: error }) } @@ -225,10 +231,13 @@ export class WorkflowExecution { if (error instanceof WorkflowError && error.code === 'CANCELLED') { return { value: null, stopReason: 'cancelled', error: error.message, agentsStarted: this.started } } - // describeThrown is total and trap-free: a hostile thrown value (a - // throwing accessor, a proxy) cannot make this catch throw — drive() - // resolving is the `result` never-rejects seam contract. - return { value: null, stopReason: 'error', error: describeThrown(error), agentsStarted: this.started } + // Ordinary script failures arrive pre-rendered by the realm-side catch + // (thrownRendering); host-thrown errors (a vm timeout, a WorkflowError) + // and adversarial values that bypassed the wrapper (e.g. a hostile + // thenable rejection) render via the total, host-code-only + // describeThrown. Neither path can throw — drive() resolving is the + // `result` never-rejects seam contract. + return { value: null, stopReason: 'error', error: thrownRendering(error) ?? describeThrown(error), agentsStarted: this.started } } finally { // Reap strays: a script that fired agent() calls without awaiting them // leaves live children behind after settlement — abort them all. (The diff --git a/packages/workflow/workflow-vm/tests/meta.spec.ts b/packages/workflow/workflow-vm/tests/meta.spec.ts index 7b5a929046..a957b0ae05 100644 --- a/packages/workflow/workflow-vm/tests/meta.spec.ts +++ b/packages/workflow/workflow-vm/tests/meta.spec.ts @@ -116,11 +116,24 @@ return 2` expect(error.message).toContain('proxies cannot cross') }) - it('a meta expression THROWING a hostile value maps to META_INVALID — rendering runs no realm code', () => { + it('a meta expression THROWING a hostile value maps to META_INVALID — rendering stays realm-side', () => { + // bad() rethrows anything that is not a WorkflowError, so a hostile value + // escaping the realm-side renderer raw would fail this test. const error = bad('export const meta = { name: (() => { throw { get stack() { throw new Error("boom") }, toString() { throw new Error("boom") } } })(), description: "d" }\nreturn 1') expect(error.code).toBe('META_INVALID') expect(error.message).toContain('pure literal') - expect(error.message).toContain('[object Object]') + expect(error.message).toContain('[unrenderable thrown value]') + }) + + it('a spinning meta expression (even inside a thrown stack getter) dies by the eval timeout', () => { + try { + extractMeta('export const meta = { name: (() => { while (true) {} })(), description: "d" }', 50) + throw new Error('expected the extraction to time out') + } catch (error: unknown) { + expect(error).toBeInstanceOf(WorkflowError) + expect((error as WorkflowError).code).toBe('META_INVALID') + expect((error as WorkflowError).message.toLowerCase()).toContain('timed out') + } }) it('rejects shape violations with EVERY violation listed (META_INVALID)', () => { diff --git a/packages/workflow/workflow-vm/tests/realm.spec.ts b/packages/workflow/workflow-vm/tests/realm.spec.ts index 86deb49bd3..c1bdeb33d6 100644 --- a/packages/workflow/workflow-vm/tests/realm.spec.ts +++ b/packages/workflow/workflow-vm/tests/realm.spec.ts @@ -1,6 +1,6 @@ import { describe, expect, it } from 'vitest' import * as vm from 'node:vm' -import { materializeFromRealm, MaterializeError } from '../src/realm.ts' +import { materializeFromRealm, MaterializeError, describeThrown, thrownRendering } from '../src/realm.ts' /** Evaluate an expression inside a fresh vm realm and hand back the raw realm value. */ function inRealm(expression: string): unknown { @@ -133,3 +133,46 @@ describe('materializeFromRealm', () => { expect(materializeFromRealm(null)).toBeNull() }) }) + +describe('describeThrown (host-side thrown-value rendering)', () => { + it('renders a HOST Error via its identity-verified native stack getter', () => { + const error = new Error('host failure') + const rendered = describeThrown(error) + expect(rendered).toContain('host failure') + expect(rendered).toContain('at ') // a real stack, not just the message + }) + + it('never invokes a REALM error stack getter (identity mismatch) — message renders instead', () => { + const realmError: unknown = vm.runInNewContext('(() => { try { throw new Error("realm failure") } catch (e) { return e } })()') + expect(describeThrown(realmError)).toBe('realm failure') + }) + + it('reads a data-property stack directly and falls through a setter-only accessor', () => { + expect(describeThrown({ stack: 'data stack' })).toBe('data stack') + const setterOnly = { message: 'via message' } + Object.defineProperty(setterOnly, 'stack', { set() { /* swallow */ } }) + expect(describeThrown(setterOnly)).toBe('via message') + }) + + it('labels proxies and functions without touching them; primitives stringify', () => { + expect(describeThrown(new Proxy({}, { getOwnPropertyDescriptor() { throw new Error('trap ran') } }))).toBe('[thrown proxy]') + expect(describeThrown(() => 1)).toBe('[thrown function]') + expect(describeThrown('plain')).toBe('plain') + expect(describeThrown(42)).toBe('42') + expect(describeThrown(undefined)).toBe('undefined') + expect(describeThrown(null)).toBe('null') + expect(describeThrown({ code: 42 })).toBe('[object Object]') + }) +}) + +describe('thrownRendering (the realm-catch wrapper reader)', () => { + it('extracts the pre-rendered string from a wrapper and nothing else', () => { + expect(thrownRendering({ __wfThrown: 'rendered text' })).toBe('rendered text') + expect(thrownRendering({ __wfThrown: 42 })).toBeUndefined() + expect(thrownRendering({ other: 'x' })).toBeUndefined() + expect(thrownRendering(new Error('plain'))).toBeUndefined() + expect(thrownRendering('string')).toBeUndefined() + expect(thrownRendering(null)).toBeUndefined() + expect(thrownRendering(new Proxy({ __wfThrown: 'forged' }, { getOwnPropertyDescriptor() { throw new Error('trap ran') } }))).toBeUndefined() + }) +}) diff --git a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts index e0518c8192..00a9438575 100644 --- a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts +++ b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts @@ -589,24 +589,24 @@ describe('dsh-workflow-vm', () => { expect(result.error).toBe('[object Object]') }) - it('hostile thrown values render contained: result NEVER rejects, no unhandled rejection', async () => { + it('hostile thrown values render realm-side: result NEVER rejects, no unhandled rejection', async () => { const unhandled: unknown[] = [] const onUnhandled = (reason: unknown): void => { unhandled.push(reason) } process.on('unhandledRejection', onUnhandled) try { const { ctx, parent } = await setup() - // Each thrown value would run realm code (or throw) under a plain - // property read or String(); rendering must stay total — the only - // permitted realm call is the CONTAINED stack getter. + // Each thrown value runs code (or throws) when rendered — the realm + // wrapper renders it INSIDE script execution, and the host catch only + // ever descriptor-reads the pre-rendered string. const cases: [string, string][] = [ ["throw { get stack() { throw new Error('stack getter threw') } }", '[object Object]'], ["throw { get stack() { throw new Error('x') }, message: 'getter threw, message renders' }", 'getter threw, message renders'], - ["throw { get message() { throw new Error('message getter ran') } }", '[object Object]'], + ["throw { get message() { throw new Error('message getter threw') } }", '[object Object]'], ["throw { stack: 'custom data stack' }", 'custom data stack'], ["throw (() => { const o = { message: 'setter-only stack' }; Object.defineProperty(o, 'stack', { set() {} }); return o })()", 'setter-only stack'], - ["throw new Proxy({}, { getOwnPropertyDescriptor() { throw new Error('trap ran') } })", '[thrown proxy]'], - ["throw { [Symbol.toPrimitive]() { throw new Error('toPrimitive ran') } }", '[object Object]'], - ['throw () => 1', '[thrown function]'], + ["throw new Proxy({}, { getOwnPropertyDescriptor() { throw new Error('gopd trap threw') } })", '[object Object]'], + ["throw { [Symbol.toPrimitive]() { throw new Error('toPrimitive threw') } }", '[unrenderable thrown value]'], + ['throw () => 1', '() => 1'], ['throw null', 'null'], ] for (const [body, rendered] of cases) { @@ -622,6 +622,27 @@ describe('dsh-workflow-vm', () => { } }) + it('a synchronous spin hidden in a thrown stack getter dies by the vm timeout, not on the host', async () => { + const { ctx, parent } = await setup({ config: { provider: 'stub', syncTimeoutMs: 50 } }) + // The realm-side renderer reads e.stack INSIDE the timed sync slice, so + // the spin is killed exactly like a plain `while (true) {}` body. + const result = await run(ctx, parent, script('throw { get stack() { while (true) {} } }')) + expect(result.stopReason).toBe('error') + expect(result.error?.toLowerCase()).toContain('timed out') + }) + + it('a hostile thenable rejection that bypasses the realm wrapper renders host-side, data-only', async () => { + const { ctx, parent } = await setup() + // Returning a thenable makes the host unwrap it AFTER the script + // settled — its rejection value skips the realm catch entirely and hits + // drive()'s catch raw. The proxy must be labelled, its traps never run. + const result = await run(ctx, parent, script(` + return { then(_resolve, reject) { reject(new Proxy({}, { getOwnPropertyDescriptor() { throw new Error('trap ran') } })) } } + `)) + expect(result.stopReason).toBe('error') + expect(result.error).toBe('[thrown proxy]') + }) + it('falls back to the message for an Error whose stack was stripped', async () => { const { ctx, parent } = await setup() const result = await run(ctx, parent, script(` From 95c8c878e1e967b9be6e306593d845e21e6ed30e Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 5 Jul 2026 20:57:51 +0800 Subject: [PATCH 016/232] workflow: pin thenable-return semantics as documented async-JS behavior MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Codex code-review round 4 flagged the return channel: an async IIFE Promise-assimilates a returned thenable, so its then() runs past the sync slice and the RESOLUTION replaces the raw object. Verified against the real engine and judged behavior, not defect: - Assimilation is standard JavaScript (an async function's returned thenable resolves before the caller sees it) and is load-bearing ergonomics: an un-awaited 'return agent(...)' / 'return parallel(...)' resolves to the intended value precisely because of it. Rejecting callable-then returns would break that; intercepting pre-assimilation is spec-impossible (the Get(v,'then') and job enqueue are internal to promise resolution). - The realm-boundary guard applies to the RESOLUTION (a thenable resolving to non-JSON is still RESULT_UNSERIALIZABLE), so nothing crosses unmaterialized. - A spin inside a returned thenable's then() is the same accepted class as any post-slice spin (it runs on the microtask queue, past the vm timeout's reach); the docs previously said 'after the first await', which was too narrow — reworded to 'past the initial synchronous slice (an await continuation, or a thenable's then invoked by promise resolution)'. Pinned with an engine test (un-awaited return agent(); custom thenable resolution as the return value; thenable resolving to non-JSON rejects), and the limitation wording updated in the module doc, README, and RFC. --- .../feature/2026-07-05-dynamic-workflows.md | 2 +- packages/workflow/workflow-vm/README.md | 2 +- packages/workflow/workflow-vm/src/index.ts | 18 +++++++++++------- .../workflow-vm/tests/workflow-vm.spec.ts | 13 +++++++++++++ 4 files changed, 26 insertions(+), 9 deletions(-) diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index 6f8678ecea..f44e1fad89 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -24,7 +24,7 @@ One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferre ### The engine (dsh-workflow-vm): in-process node:vm -**Why node:vm and not isolated-vm/worker threads**: isolated-vm is in maintenance mode, needs `--no-node-snapshot` on EVERY consumer process (including the published bins) on Node ≥ 20, and falls back to node-gyp source builds; a worker-thread engine turns every hook into RPC and complicates the per-file coverage gate. Scripts are model-written — the same trust level as the model's existing bash access — so genuine sandboxing is not the current requirement. The interface/implementation split exists precisely so a hardened engine can swap in later. Accepted, documented limitations: vm is not a security boundary, and the vm timeout covers only the initial synchronous slice — a pathological synchronous spin after the first await cannot be killed in-process; `dispose()` cancels, waits a bounded grace for the script to settle and its children to finish disposing, then abandons. +**Why node:vm and not isolated-vm/worker threads**: isolated-vm is in maintenance mode, needs `--no-node-snapshot` on EVERY consumer process (including the published bins) on Node ≥ 20, and falls back to node-gyp source builds; a worker-thread engine turns every hook into RPC and complicates the per-file coverage gate. Scripts are model-written — the same trust level as the model's existing bash access — so genuine sandboxing is not the current requirement. The interface/implementation split exists precisely so a hardened engine can swap in later. Accepted, documented limitations: vm is not a security boundary, and the vm timeout covers only the initial synchronous slice — a pathological synchronous spin in realm code past that slice (an await continuation, or a thenable's `then` invoked by promise resolution — a returned thenable resolves per JavaScript semantics, which is what makes an un-awaited `return agent('x')` work) cannot be killed in-process; `dispose()` cancels, waits a bounded grace for the script to settle and its children to finish disposing, then abandons. **Meta extraction**: a string/comment-aware brace scanner (template interpolation rejected) finds the literal; it is evaluated ALONE in an empty, timed vm context; the result must materialize to plain JSON data and pass shape validation (unknown fields rejected loud); the statement is blanked line-preservingly so stacks keep script line numbers. diff --git a/packages/workflow/workflow-vm/README.md b/packages/workflow/workflow-vm/README.md index e519ce7c0e..05a8e252d3 100644 --- a/packages/workflow/workflow-vm/README.md +++ b/packages/workflow/workflow-vm/README.md @@ -16,7 +16,7 @@ Values ENTERING the host (the meta literal, hook options/schemas, the script's r Per-run: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` aborts every child (a shared `AbortSignal`), rejects waiting `agent()` slots, and makes every future hook call throw `CANCELLED` — the script dies at its next await and the run settles `cancelled`; a cancellation that lands before the body runs (or before it settles) reports `cancelled` even if the script itself needed no hooks. Once a run settles, stray children a script fired without awaiting are aborted too, and `dispose()` waits for those children to finish disposing (bounded by the grace) before returning. Every hook-returned promise carries a no-op rejection consumer, so a dropped promise cannot surface an unhandled rejection (the app boot layer exits the process on those). Thrown script values are pre-rendered to a string INSIDE the realm's execution window (the body is compiled into a realm-side catch), so a hostile `stack` getter is subject to the vm sync-slice timeout like any other script code; the host catch only descriptor-reads that string, falling back to `describeThrown` (fixed labels, own-data reads, an identity-verified host-native stack getter) — `result` cannot reject. -**Documented limitations** (the accepted cost of the in-process mechanism; the seam exists so a worker-thread/isolated-vm engine can swap in): vm is NOT a security boundary — scripts are model-written, the same trust level as the model's bash access — and the vm `timeout` covers only the initial synchronous slice, so a pathological synchronous spin after the first await cannot be killed; `dispose()` waits `disposeGraceMs` then ABANDONS such a script (its settlement stays contained, but an abandoned spin would still occupy the event loop). +**Documented limitations** (the accepted cost of the in-process mechanism; the seam exists so a worker-thread/isolated-vm engine can swap in): vm is NOT a security boundary — scripts are model-written, the same trust level as the model's bash access — and the vm `timeout` covers only the initial synchronous slice, so a pathological synchronous spin in realm code past that slice (an await continuation, or a thenable's `then` invoked by promise resolution) cannot be killed; `dispose()` waits `disposeGraceMs` then ABANDONS such a script (its settlement stays contained, but an abandoned spin would still occupy the event loop). A returned promise or thenable resolves per JavaScript semantics BEFORE materialization — that is what makes an un-awaited `return agent('x')` work — and the realm-boundary guard applies to the resolution. ## Config diff --git a/packages/workflow/workflow-vm/src/index.ts b/packages/workflow/workflow-vm/src/index.ts index 4f6a506329..d0c8d8abfc 100644 --- a/packages/workflow/workflow-vm/src/index.ts +++ b/packages/workflow/workflow-vm/src/index.ts @@ -12,13 +12,17 @@ * level as the model's bash access — and the realm-boundary materialization * is correctness containment, not a sandbox. * - The vm `timeout` covers only the initial SYNCHRONOUS slice of the script; - * a pathological synchronous spin after the first await cannot be killed - * in-process. `dispose()` waits a bounded grace for the script to settle - * AND its children (stray `agent()` calls included) to finish disposing, - * then ABANDONS whatever is left: pending hook promises are already - * rejected and the script's settlement is contained (no unhandled - * rejection), but an abandoned synchronous spin would still occupy the - * event loop. + * realm code that runs past that slice — an await continuation, a + * thenable's `then` invoked by promise resolution (including one the script + * RETURNS: a returned thenable resolves per JavaScript semantics before + * materialization, which is what makes an un-awaited `return agent('x')` + * work) — is beyond the timeout, so a pathological synchronous spin there + * cannot be killed in-process. `dispose()` waits a bounded grace for the + * script to settle AND its children (stray `agent()` calls included) to + * finish disposing, then ABANDONS whatever is left: pending hook promises + * are already rejected and the script's settlement is contained (no + * unhandled rejection), but an abandoned synchronous spin would still + * occupy the event loop. * * Plugin export shape: a default-exported {@link WorkflowService} subclass * (the class-based service form, like `dsh-bash-local`). diff --git a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts index 00a9438575..28c67dda14 100644 --- a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts +++ b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts @@ -217,6 +217,19 @@ describe('dsh-workflow-vm', () => { expect(result.stopReason).toBe('completed') expect(result.value).toBeNull() }) + + it('a returned promise/thenable resolves per async-JS semantics before materialization', async () => { + const { ctx, parent } = await setup() + // Load-bearing ergonomics: forgetting await on the final hook call works. + expect((await run(ctx, parent, script("return agent('x')"))).value).toBe('stub reply') + // A hand-built thenable is assimilated by the async return — the + // RESOLUTION is the script's return value (standard JavaScript), and the + // realm-boundary guard applies to that resolution, not the thenable. + expect((await run(ctx, parent, script('return { value: 1, then(resolve) { resolve({ ok: true }) } }'))).value).toEqual({ ok: true }) + const nonJson = await run(ctx, parent, script('return { then(resolve) { resolve({ bad: new Date(0) }) } }')) + expect(nonJson.stopReason).toBe('error') + expect(nonJson.error).toContain('not plain JSON data') + }) }) describe('combinator semantics', () => { From c7a833a893f59f63d37439d638e19822b42b45b7 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Sun, 5 Jul 2026 21:05:43 +0800 Subject: [PATCH 017/232] fix: simplify skill config wiring --- docs/cordis-catalog/services.md | 2 +- .../feature/2026-07-05-skill-system.md | 4 ++- packages/core/agent-core/src/index.ts | 27 +++++-------------- packages/core/skill/README.md | 4 ++- packages/core/skill/package.json | 1 - packages/core/skill/src/index.ts | 27 ++++++++++++------- packages/core/skill/tests/skill.spec.ts | 4 +++ packages/ui/acp-agent/src/index.ts | 11 +------- packages/ui/stdio-agent/src/index.ts | 11 +------- pnpm-lock.yaml | 3 --- vitest.config.ts | 11 -------- 11 files changed, 37 insertions(+), 68 deletions(-) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 066bc09b6a..2753a50158 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -176,7 +176,7 @@ async get(name: string, options: SkillLookupOptions = {}): Promise ``` -Source: [`packages/core/skill/src/index.ts:132`](../../packages/core/skill/src/index.ts) +Source: [`packages/core/skill/src/index.ts:133`](../../packages/core/skill/src/index.ts) ## `ctx.subagents` — `SubagentService` diff --git a/docs/rfc/implemented/feature/2026-07-05-skill-system.md b/docs/rfc/implemented/feature/2026-07-05-skill-system.md index eea4ac91ae..6fda27b957 100644 --- a/docs/rfc/implemented/feature/2026-07-05-skill-system.md +++ b/docs/rfc/implemented/feature/2026-07-05-skill-system.md @@ -16,7 +16,9 @@ Add `@deepseek-ai/dsh-skill` as the discovery service (`ctx.skills`) and `@deeps Discovery scans cwd-sensitive project roots, runtime registrations, user roots, extra roots, and system roots in first-wins priority order: project `.dsh`, project `.agents`, runtime, user `.dsh`, user `.agents`, extra roots, then `~/.dsh/skills/.system`. The user `.dsh/skills` scan skips `.system` so built-ins are not discovered twice. Same-name lower-priority skills are ignored with a warning, which lets project and user skills override built-ins deliberately. -Each skill is either `/SKILL.md` or `.md` with YAML frontmatter. `name` and `description` are required; `whenToUse`, `disableModelInvocation`, and `metadata` are optional. Names are kebab-case. YAML frontmatter is parsed with the `yaml` package instead of a hand-written parser because the format already exposes an open `metadata` object and should behave like ordinary skill files rather than a bespoke key/value subset. +Each skill is either `/SKILL.md` or `.md` with YAML frontmatter. `name` and `description` are required; `whenToUse`, `disableModelInvocation`, and `metadata` are optional. Names are kebab-case. YAML frontmatter is parsed with the `yaml` package instead of `js-yaml` or a hand-written parser: `yaml` is the already-declared modern parser for this package's limited frontmatter needs, and a narrow parser would either reject valid YAML users expect to work or grow into an unreviewed YAML subset. + +Skill filesystem I/O goes through `ctx.fs` when a filesystem service is loaded: root discovery uses `listDir`, skill reads use `readText`, and system-skill installation uses `writeText`. The Node filesystem remains a fallback for minimal contexts that mount `dsh-skill` without the fs seam. Missing roots and unreadable or malformed skill files degrade to warn-and-skip so one bad local file does not make every agent request fail. The service injects a request-time `## Skills` fragment through the existing `agent/request` waterfall. It appends to `GenerateOptions.system` instead of changing `systemPrompt.assemble()`, because the available project skills depend on the calling agent's cwd. The fragment contains only stable routing metadata and is sorted by skill name after first-wins collection, so equivalent workspaces produce deterministic prompt text and better prefix-cache reuse. Full skill bodies are never included in the listing. diff --git a/packages/core/agent-core/src/index.ts b/packages/core/agent-core/src/index.ts index 0f8e005b56..ff227cb6bc 100644 --- a/packages/core/agent-core/src/index.ts +++ b/packages/core/agent-core/src/index.ts @@ -72,27 +72,14 @@ export interface Config extends AgentLoopConfig { skills?: SkillConfig } -/** Local schema for the forwarded skill config. Keep this in sync with `SkillService.Config`. */ -export const SkillConfigSchema: Schema = z.object({ - dshHome: z.string(), - agentsHome: z.string(), - extraRoots: z.array(z.string()).default([]), - installSystemSkills: z.boolean().default(true), - promptFieldMaxLength: z.number().default(500), - collectCacheMaxEntries: z.number().default(128), -}) +/** The skill config schema exported for app packages that forward `skills`. */ +export const SkillConfigSchema: Schema = SkillService.Config -/** Bundle schema: keep the loop agent shape aligned and expose skill config. */ -export const Config: Schema = z.object({ - agents: z.array(z.object({ - id: z.string().required(), - model: z.string(), - systemPrompt: z.string(), - cwd: z.string(), - resumeSessionId: z.string(), - })).default([]), - skills: SkillConfigSchema, -}) as unknown as Schema +/** Bundle schema: reuse agent-loop's agent shape and add skill config. */ +export const Config: Schema = z.intersect([ + AgentLoop.Config, + z.object({ skills: SkillConfigSchema }), +]) /** * Load the spine. Each `ctx.plugin(...)` mounts one child of the bundle fiber; diff --git a/packages/core/skill/README.md b/packages/core/skill/README.md index 39deef415b..a91c3f116d 100644 --- a/packages/core/skill/README.md +++ b/packages/core/skill/README.md @@ -37,11 +37,13 @@ Default roots are resolved in this conflict priority order: The project root is the nearest ancestor containing `.git`; without one, the current cwd is used. The user DSH root skips `.system` during normal user scanning so system skills are read exactly once. Same-name skills keep the highest-priority copy, then model-visible summaries are sorted by skill name for stable prompts and provider prefix-cache friendliness. +When `ctx.fs` is available, discovery lists roots through `ctx.fs.listDir`, reads skill files through `ctx.fs.readText`, and installs system skills through `ctx.fs.writeText`. Without a filesystem service, the package falls back to Node filesystem I/O so the service can still run in minimal test contexts. Missing, unreadable, or malformed skill files warn and skip instead of failing the whole request. + Discovery is memoized per resolved root set and runtime-skill revision. Runtime `register()` and disposer calls invalidate the cache; disk-only changes are picked up on the next invalidation or process restart. ## Skill Format -Skills can be single-level directory bundles (`/SKILL.md`) or flat Markdown files (`.md`). Nested `**/SKILL.md` discovery is intentionally not part of v1. Frontmatter requires `name` and `description`; `whenToUse`, `disableModelInvocation`, and `metadata` are optional. Names must be kebab-case. +Skills can be single-level directory bundles (`/SKILL.md`) or flat Markdown files (`.md`). Nested `**/SKILL.md` discovery is intentionally not part of v1. Frontmatter is parsed as YAML with the `yaml` package; it requires `name` and `description`, while `whenToUse`, `disableModelInvocation`, and `metadata` are optional. Names must be kebab-case. ## Prompt Integration diff --git a/packages/core/skill/package.json b/packages/core/skill/package.json index 9bca3c1a24..efa1646e14 100644 --- a/packages/core/skill/package.json +++ b/packages/core/skill/package.json @@ -34,7 +34,6 @@ "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-fs": "workspace:^", - "@deepseek-ai/dsh-fs-local": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", "cordis": "^4.0.0-rc.6" } diff --git a/packages/core/skill/src/index.ts b/packages/core/skill/src/index.ts index d2a228dc1c..503057b8bd 100644 --- a/packages/core/skill/src/index.ts +++ b/packages/core/skill/src/index.ts @@ -23,6 +23,7 @@ const SKILL_NAME = /^[a-z0-9]+(?:-[a-z0-9]+)*$/ const DEFAULT_PROMPT_FIELD_LENGTH = 500 const DEFAULT_COLLECT_CACHE_ENTRIES = 128 +/** Return whether a string is a valid kebab-case skill name. */ export function isSkillName(name: string): boolean { return SKILL_NAME.test(name) } @@ -365,13 +366,14 @@ async function listSkillRootEntries(root: SkillRoot, ctx: Context): Promise { - try { - const target = await fs.resolve(root.path) - const entries = await fs.listDir(target) - return entries.map(entryFromFs) - } catch { - return [] - } + // Skill roots are optional; an absent or unlistable root contributes no skills. + const entries = await fsListDir(fs, root.path).catch(() => undefined) + return entries === undefined ? [] : entries.map(entryFromFs) +} + +async function fsListDir(fs: FileSystem, path: string): Promise { + const target = await fs.resolve(path) + return await fs.listDir(target) } function entryFromFs(entry: FsDirEntry): SkillRootEntry { @@ -476,8 +478,13 @@ async function readSkillText(ctx: Context, path: string): Promise { - const target = await fs.resolve(path) - const info = await fs.stat(target) + // A missing or temporarily inaccessible skill file is not fatal to discovery. + const target = await fs.resolve(path).catch(() => undefined) + if (target === undefined) return undefined + const info = await fs.stat(target).catch((error: unknown) => { + ctx.logger.warn(`skill file ${path} ignored: failed to stat through filesystem service: ${errorMessage(error)}`) + return undefined + }) if (info === undefined || info.type !== 'file') return undefined try { return await fs.readText(target) @@ -553,7 +560,7 @@ async function findProjectRoot(cwd: string): Promise { function normalizeSkill(skill: SkillRegistration): SkillDefinition { if (!SKILL_NAME.test(skill.name)) throw new Error(`invalid skill name "${skill.name}"`) if (skill.description.length === 0) throw new Error(`skill "${skill.name}" requires a description`) - return { ...skill, source: skill.source } + return { ...skill } } function toSummary(skill: SkillDefinition): SkillSummary { diff --git a/packages/core/skill/tests/skill.spec.ts b/packages/core/skill/tests/skill.spec.ts index be16483a1e..ef5d314190 100644 --- a/packages/core/skill/tests/skill.spec.ts +++ b/packages/core/skill/tests/skill.spec.ts @@ -23,8 +23,10 @@ async function writeFlatSkill(root: string, name: string, description: string, b class TestFileSystem extends FileSystem { listDirCalls = 0 + failResolvePaths = new Set() override async resolve(path: string): Promise { + if (this.failResolvePaths.has(path)) throw new Error('resolve failed') return { targetKey: path as never, displayPath: path } } @@ -426,6 +428,7 @@ describe('SkillService', () => { const home = await tempDir('skill-read-fs') const root = join(home, '.dsh/skills') await writeFlatSkill(root, 'text-skill', 'Text skill', 'Text body.') + await writeFlatSkill(root, 'resolve-fail', 'Resolve fail', 'Resolve body.') await mkdir(join(root, 'empty-dir'), { recursive: true }) await mkdir(join(root, 'directory-skill/SKILL.md'), { recursive: true }) await writeFile(join(root, 'binary-skill.md'), Buffer.concat([ @@ -437,6 +440,7 @@ describe('SkillService', () => { const ctx = new Context() await ctx.plugin(TestFileSystem) const fs = ctx.fs as TestFileSystem + fs.failResolvePaths.add(join(root, 'resolve-fail.md')) await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['text-skill']) diff --git a/packages/ui/acp-agent/src/index.ts b/packages/ui/acp-agent/src/index.ts index 26ca874ff8..c3c869cd9d 100644 --- a/packages/ui/acp-agent/src/index.ts +++ b/packages/ui/acp-agent/src/index.ts @@ -38,15 +38,6 @@ import SessionPersistenceJsonl from '@deepseek-ai/dsh-session-persistence-jsonl' export const name = 'acp-agent' -const SkillConfigSchema: z = z.object({ - dshHome: z.string(), - agentsHome: z.string(), - extraRoots: z.array(z.string()).default([]), - installSystemSkills: z.boolean().default(true), - promptFieldMaxLength: z.number().default(500), - collectCacheMaxEntries: z.number().default(128), -}) - /** * App config: the swappable per-deployment values. `model`/`systemPrompt` * configure the agent template the ACP bridge creates each session's agent from @@ -68,7 +59,7 @@ export const Config: z = z.object({ model: z.string().required(), systemPrompt: z.string().required(), persistenceRoot: z.string().default('./.sessions'), - skills: SkillConfigSchema, + skills: agentCore.SkillConfigSchema, }) /** diff --git a/packages/ui/stdio-agent/src/index.ts b/packages/ui/stdio-agent/src/index.ts index 2a370f5cb3..1753039829 100644 --- a/packages/ui/stdio-agent/src/index.ts +++ b/packages/ui/stdio-agent/src/index.ts @@ -49,15 +49,6 @@ import * as uiStdio from './stdio-chat.ts' export const name = 'stdio-agent' -const SkillConfigSchema: z = z.object({ - dshHome: z.string(), - agentsHome: z.string(), - extraRoots: z.array(z.string()).default([]), - installSystemSkills: z.boolean().default(true), - promptFieldMaxLength: z.number().default(500), - collectCacheMaxEntries: z.number().default(128), -}) - /** * App config: the swappable per-demo values, each routed to where the app wires * it. `model`/`systemPrompt`/`resumeSessionId` configure the pre-created `main` @@ -90,7 +81,7 @@ export const Config: z = z.object({ systemPrompt: z.string().required(), persistenceRoot: z.string().default('./.sessions'), welcome: z.string().default('ready.'), - skills: SkillConfigSchema, + skills: agentCore.SkillConfigSchema, resumeSessionId: z.string(), }) diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 1e9291924a..7843b3920a 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -287,9 +287,6 @@ importers: '@deepseek-ai/dsh-fs': specifier: workspace:^ version: link:../../fs/fs - '@deepseek-ai/dsh-fs-local': - specifier: workspace:^ - version: link:../../fs/fs-local '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm diff --git a/vitest.config.ts b/vitest.config.ts index 7562dd628b..6afd87dcb0 100644 --- a/vitest.config.ts +++ b/vitest.config.ts @@ -1,5 +1,4 @@ import tsconfigPaths from 'vite-tsconfig-paths' -import { fileURLToPath } from 'node:url' import { defineConfig } from 'vitest/config' export default defineConfig({ @@ -19,16 +18,6 @@ export default defineConfig({ // upstream copies (vendor/README.md). The plugin's `projects` option // instead applies the one root map to every importer. plugins: [tsconfigPaths({ projects: ['./tsconfig.json'] })], - resolve: { - // The root tsconfig maps `schemastery` to its vendored TS source, whose - // upstream module shape is `export = Schema`. Vite/Vitest does not synthesize - // a default export for that source file consistently, while the package's - // built ESM artifact does. Tests exercise harness source but can use the - // vendored dependency's built artifact for this CJS-interop boundary. - alias: { - schemastery: fileURLToPath(new URL('./vendor/schemastery/lib/index.mjs', import.meta.url)), - }, - }, test: { include: ['packages/*/*/tests/**/*.spec.ts', 'examples/*/tests/**/*.spec.ts'], coverage: { From 7234d41b915d0b75e7b69ee1b99e42fa002e7e4b Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 5 Jul 2026 21:24:30 +0800 Subject: [PATCH 018/232] workflow: hook promises and hook failures are realm-built too MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Codex code-review round 5: agent()/parallel()/pipeline() returned HOST Promise objects into the script realm — Object.getPrototypeOf(agent('x')) reached host Promise.prototype, contradicting the realm contract (correctness containment, not the accepted sandbox stance). The rejection channel had the same leak one hop away: a caught hook failure was a host WorkflowError (host Error.prototype chain), and phase()/log() threw host errors synchronously. All three surfaces are realm-built now: - hook promises: the realm's own Promise.resolve (bound at context setup) assimilates the host promise, so the script-visible promise carries realm prototypes; the realm promise gets the same no-op rejection consumer as the host one (a script may drop it). - hook failures: rejections and phase/log sync throws are translated at the boundary into realm-built clones (name/code/message/fatal via an in-realm factory); non-WorkflowError host failures become generic realm Errors carrying their describeThrown rendering. - the combinators recognize FATAL clones structurally (isFatalWorkflowErrorClone: proxy-guarded descriptor reads), preserving the fatal-vs-null discipline across the boundary; a script forging the shape kills only its own run. drive() maps any post-cancel failure to 'cancelled' by run state (a CANCELLED clone deliberately fails the host instanceof). Tests: realm-promise identity for all three hooks + host Promise.prototype pollution unreachable; clone shape (instanceof realm Error, name/code/fatal/ message) with prototype-chain mutation staying realm-side; a rejecting provider result crossing as a generic clone; phase/log sync-throw clones; combinator catch branches (string throw, proxy throw, shape-miss forgery → null; forged fatal → kills own run); existing fatal-propagation, cancellation, and unhandled-rejection tests as canaries. --- .../feature/2026-07-05-dynamic-workflows.md | 2 +- packages/workflow/workflow-vm/README.md | 2 +- packages/workflow/workflow-vm/src/realm.ts | 16 +++ packages/workflow/workflow-vm/src/runtime.ts | 112 ++++++++++++++---- .../workflow-vm/tests/workflow-vm.spec.ts | 96 ++++++++++++++- 5 files changed, 203 insertions(+), 25 deletions(-) diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index f44e1fad89..4d7061335e 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -28,7 +28,7 @@ One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferre **Meta extraction**: a string/comment-aware brace scanner (template interpolation rejected) finds the literal; it is evaluated ALONE in an empty, timed vm context; the result must materialize to plain JSON data and pass shape validation (unknown fields rejected loud); the statement is blanked line-preservingly so stacks keep script line numbers. -**Realm boundary**: values entering the host (meta, hook options, schemas, the return value) go through `materializeFromRealm` — a descriptor walk that NEVER invokes accessors (the repo's `isJsonValue` is prototype-strict and getter-invoking, so it cannot run first; it would reject every cross-realm object and let realm code run outside the timed window) and rejects loud everything JSON cannot carry, proxies included (the trap-free `util.types.isProxy`, checked before any inspection, so realm-side traps never run on the host stack), copying via `Object.defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Values entering the realm (`args`, `agent()` results) are rebuilt INSIDE the realm via the context's own `JSON.parse`, and `parallel`/`pipeline` resolve to realm-built arrays, so the script never holds a live host-prototype object. Realm functions (stages, thunks) are called, never materialized. +**Realm boundary**: values entering the host (meta, hook options, schemas, the return value) go through `materializeFromRealm` — a descriptor walk that NEVER invokes accessors (the repo's `isJsonValue` is prototype-strict and getter-invoking, so it cannot run first; it would reject every cross-realm object and let realm code run outside the timed window) and rejects loud everything JSON cannot carry, proxies included (the trap-free `util.types.isProxy`, checked before any inspection, so realm-side traps never run on the host stack), copying via `Object.defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Values entering the realm are realm-built throughout, so the script never holds a live host-prototype object: `args` and `agent()` results via the context's own `JSON.parse`, combinator result arrays via its `Array.from`, hook promises via its `Promise.resolve`, and hook failures as realm-built clones (name/code/message/fatal — the combinators recognize fatal clones structurally). Realm functions (stages, thunks) are called, never materialized. **Containment**: every hook-returned promise carries a no-op rejection consumer, so a script that drops a promise cannot surface an unhandled rejection when cancellation rejects it — `dsh-app-boot` exits the process on unhandled rejections. Thrown script/meta values are pre-rendered to a string by a realm-side catch compiled into the wrapper (rendering runs inside the realm's own execution window, so a hostile `stack` getter dies by the vm sync-slice timeout like any other script code — host-side formatting of realm errors is unfixable in general, since V8 stack formatting invokes script-controllable `name`/`prepareStackTrace` hooks); the host catch descriptor-reads that string or falls back to `describeThrown` (fixed labels, own-data reads, an identity-verified host-native stack getter), so `result` cannot reject. Caps (`maxConcurrentAgents` auto = `min(16, cores - 2)`, `maxTotalAgents` 1000, `maxItemsPerCall` 4096) and timeouts are validated Config, not literals. diff --git a/packages/workflow/workflow-vm/README.md b/packages/workflow/workflow-vm/README.md index 05a8e252d3..b5d8817735 100644 --- a/packages/workflow/workflow-vm/README.md +++ b/packages/workflow/workflow-vm/README.md @@ -10,7 +10,7 @@ The first [`WorkflowService`](../workflow/README.md) implementation: an in-proce ## Realm discipline -Values ENTERING the host (the meta literal, hook options/schemas, the script's return) are materialized by `materializeFromRealm`: a descriptor walk that never invokes accessors and rejects loud everything JSON cannot carry (accessors, exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`, and proxies — rejected via the trap-free `util.types.isProxy` BEFORE any inspection could run a realm-side trap on the host stack), copying into host containers via `defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Values ENTERING the realm (`args`, `agent()` results) are rebuilt INSIDE the realm through the context's own `JSON.parse`, and the arrays `parallel`/`pipeline` resolve to are realm-built, so the script never holds an object whose prototype chain reaches host intrinsics. +Values ENTERING the host (the meta literal, hook options/schemas, the script's return) are materialized by `materializeFromRealm`: a descriptor walk that never invokes accessors and rejects loud everything JSON cannot carry (accessors, exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`, and proxies — rejected via the trap-free `util.types.isProxy` BEFORE any inspection could run a realm-side trap on the host stack), copying into host containers via `defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Values ENTERING the realm are realm-built throughout, so the script never holds an object whose prototype chain reaches host intrinsics: `args` and `agent()` results are rebuilt through the context's own `JSON.parse`, combinator result arrays through its `Array.from`, hook promises through its `Promise.resolve`, and a hook failure (rejection or synchronous `phase`/`log` throw) crosses as a realm-built clone carrying name/code/message/fatal — the combinators recognize fatal clones structurally, so the fatal-vs-null discipline survives the boundary. ## Limits, cancellation, disposal diff --git a/packages/workflow/workflow-vm/src/realm.ts b/packages/workflow/workflow-vm/src/realm.ts index fca93caac4..c1f1ff7c5c 100644 --- a/packages/workflow/workflow-vm/src/realm.ts +++ b/packages/workflow/workflow-vm/src/realm.ts @@ -156,6 +156,22 @@ function ownDataProperty(value: object, key: string): unknown { return descriptor !== undefined && 'value' in descriptor ? descriptor.value : undefined } +/** + * Whether `error` is a FATAL realm-built `WorkflowError` clone — the shape the + * engine's hooks reject with (host errors are translated at the realm boundary + * so the script never holds host prototypes), duck-checked because a realm + * object cannot be an `instanceof` the host class. Proxy-guarded and + * descriptor-read, so a forged object cannot run code here; a script forging + * the shape only kills its own run (self-sabotage). Combinators use this to + * decide re-throw vs per-item `null`. + * @param error - the value a combinator caught from a realm thunk/stage. + * @returns `true` when the error must propagate and kill the script. + */ +export function isFatalWorkflowErrorClone(error: unknown): boolean { + if (typeof error !== 'object' || error === null || types.isProxy(error)) return false + return ownDataProperty(error, 'name') === 'WorkflowError' && ownDataProperty(error, 'fatal') === true +} + /** * Whether an object's prototype chain is data-shaped: `null`, or a prototype * whose own prototype is `null` (the realm's `Object.prototype` — which we diff --git a/packages/workflow/workflow-vm/src/runtime.ts b/packages/workflow/workflow-vm/src/runtime.ts index 892b7c781d..955be94a87 100644 --- a/packages/workflow/workflow-vm/src/runtime.ts +++ b/packages/workflow/workflow-vm/src/runtime.ts @@ -9,17 +9,22 @@ * descriptor walks; values ENTERING the realm from the host (`args`, agent() * results) are rebuilt INSIDE the realm through the context's own * `JSON.parse`, so the script never holds an object whose prototype chain - * reaches host intrinsics. The arrays `parallel`/`pipeline` resolve to are - * realm-built for the same reason (their ELEMENTS are realm values already — - * only the container needs rebuilding). Realm functions (pipeline stages, - * parallel thunks) are called, not materialized — their values stay - * realm-side. + * reaches host intrinsics. The same rule covers every other value a hook + * hands the script: the promises `agent`/`parallel`/`pipeline` return are + * realm promises (the realm's own `Promise.resolve` over the host promise), + * the arrays the combinators resolve to are realm-built (their ELEMENTS are + * realm values already — only the container needs rebuilding), and a hook + * failure — rejection or synchronous `phase`/`log` throw — crosses as a + * realm-built clone carrying name/code/message/fatal. Realm functions + * (pipeline stages, parallel thunks) are called, not materialized — their + * values stay realm-side. * * Failure discipline: fatal {@link WorkflowError}s (bad hook arguments, * unsupported options/schemas, tripped caps, seam start failures, - * cancellation) ALWAYS propagate through `parallel`/`pipeline`; the per-item - * `null` is reserved for child-run failures and ordinary in-stage script - * errors. Every hook-returned promise gets a no-op rejection consumer + * cancellation) ALWAYS propagate through `parallel`/`pipeline` — they cross + * the realm boundary as fatal clones, recognized structurally — and the + * per-item `null` is reserved for child-run failures and ordinary in-stage + * script errors. Every hook-returned promise gets a no-op rejection consumer * attached, so a script that drops a promise (fires an `agent()` without * awaiting it) cannot surface an unhandled rejection when cancellation * rejects it — the app boot layer exits the process on unhandled rejections. @@ -34,14 +39,14 @@ import type { Agent } from '@deepseek-ai/dsh-agent' import type {} from '@deepseek-ai/dsh-subagent' import { assertSupportedOutputSchema, OutputSchemaError } from '@deepseek-ai/dsh-tools' import type { StructuredOutputSchema } from '@deepseek-ai/dsh-tools' -import { WorkflowError, isFatalWorkflowError } from '@deepseek-ai/dsh-workflow' +import { WorkflowError } from '@deepseek-ai/dsh-workflow' import type { WorkflowAgentEndInfo, WorkflowAgentInfo, WorkflowMeta, WorkflowResult, } from '@deepseek-ai/dsh-workflow' -import { materializeFromRealm, MaterializeError, describeThrown, thrownRendering, REALM_THROWN_RENDERER_SOURCE } from './realm.ts' +import { materializeFromRealm, MaterializeError, describeThrown, thrownRendering, isFatalWorkflowErrorClone, REALM_THROWN_RENDERER_SOURCE } from './realm.ts' /** The per-run knobs the engine resolves from its Config. */ export interface ExecutionLimits { @@ -121,6 +126,8 @@ export class WorkflowExecution { private readonly context: vm.Context private readonly realmJsonParse: (text: string) => unknown private readonly realmArrayFrom: (items: unknown[]) => unknown[] + private readonly realmPromiseResolve: (value: unknown) => Promise + private readonly realmErrorClone: (name: string, code: string | undefined, message: string, fatal: boolean) => unknown private readonly compiled: vm.Script /** Every live `agent()` call promise — awaited or stray — for {@link quiesce}. */ private readonly inFlightAgents = new Set>() @@ -159,16 +166,38 @@ export class WorkflowExecution { // The realm's own JSON.parse — the host→realm rebuild channel. const realmJson = vm.runInContext('JSON', this.context) as { parse(text: string): unknown } this.realmJsonParse = (text: string) => realmJson.parse(text) - // The realm's own Array.from, bound NOW so a script reassigning its - // globals later cannot swap it: combinator results must be realm arrays. + // The realm's own Array.from / Promise.resolve / an error factory, bound + // NOW so a script reassigning its globals later cannot swap them: + // combinator results must be realm arrays, hook promises realm promises, + // and hook failures realm-built clones. this.realmArrayFrom = vm.runInContext('Array.from.bind(Array)', this.context) as (items: unknown[]) => unknown[] + this.realmPromiseResolve = vm.runInContext('Promise.resolve.bind(Promise)', this.context) as (value: unknown) => Promise + this.realmErrorClone = vm.runInContext(`(name, code, message, fatal) => { + const error = new Error(message) + error.name = name + if (code !== undefined) error.code = code + error.fatal = fatal + return error + }`, this.context) as (name: string, code: string | undefined, message: string, fatal: boolean) => unknown const globals: Record = { - agent: (prompt: unknown, opts?: unknown) => this.contain(this.track(this.agent(prompt, opts))), - parallel: (thunks: unknown) => this.contain(this.parallel(thunks)), - pipeline: (items: unknown, ...stages: unknown[]) => this.contain(this.pipeline(items, stages)), - phase: (title: unknown) => { this.phase(title) }, - log: (message: unknown) => { this.log(message) }, + agent: (prompt: unknown, opts?: unknown) => this.realmFacing(this.track(this.agent(prompt, opts))), + parallel: (thunks: unknown) => this.realmFacing(this.parallel(thunks)), + pipeline: (items: unknown, ...stages: unknown[]) => this.realmFacing(this.pipeline(items, stages)), + phase: (title: unknown) => { + try { + this.phase(title) + } catch (error: unknown) { + throw this.toRealmError(error) + } + }, + log: (message: unknown) => { + try { + this.log(message) + } catch (error: unknown) { + throw this.toRealmError(error) + } + }, args: this.toRealm(args), } for (const [key, value] of Object.entries(globals)) { @@ -228,8 +257,12 @@ export class WorkflowExecution { const value = raw === undefined ? null : this.materializeResult(raw) return { value, stopReason: 'completed', agentsStarted: this.started } } catch (error: unknown) { - if (error instanceof WorkflowError && error.code === 'CANCELLED') { - return { value: null, stopReason: 'cancelled', error: error.message, agentsStarted: this.started } + // Any failure after cancel() reports `cancelled` with the canonical + // reason — the reject path mirrors the resolve path's post-settle + // check, and a hook CANCELLED failure crosses the realm boundary as a + // clone that deliberately fails the host `instanceof`. + if (this.isCancelled()) { + return { value: null, stopReason: 'cancelled', error: this.cancelledError().message, agentsStarted: this.started } } // Ordinary script failures arrive pre-rendered by the realm-side catch // (thrownRendering); host-thrown errors (a vm timeout, a WorkflowError) @@ -258,6 +291,37 @@ export class WorkflowExecution { return promise } + /** + * Hand a hook's host promise to the script as a REALM promise (the realm's + * own `Promise.resolve` assimilates it) whose failure reason is a + * realm-built clone — the script must never hold host prototypes, and both + * the promise object and a caught rejection would otherwise expose them + * (module doc). The realm promise gets the same no-op rejection consumer as + * {@link contain}, since the script may drop it; the intermediate host + * promises are handled by the assimilation chain itself. + */ + private realmFacing(hostPromise: Promise): Promise { + const translated = hostPromise.catch((error: unknown) => { + throw this.toRealmError(error) + }) + const realmPromise = this.realmPromiseResolve(translated) + realmPromise.catch(() => { /* consumed: a script-dropped realm promise must not surface an unhandled rejection (see contain) */ }) + return realmPromise + } + + /** + * Rebuild a host failure as a realm-built error clone: a `WorkflowError` + * keeps its name/code/message/fatal (the combinators recognize the shape + * via {@link isFatalWorkflowErrorClone}); anything else becomes a generic + * realm `Error` carrying its {@link describeThrown} rendering. + */ + private toRealmError(error: unknown): unknown { + if (error instanceof WorkflowError) { + return this.realmErrorClone('WorkflowError', error.code, error.message, error.fatal) + } + return this.realmErrorClone('Error', undefined, describeThrown(error), false) + } + /** * Register one `agent()` call promise for {@link quiesce} tracking; the * entry drops when the call fully settles (which is AFTER its child's @@ -472,7 +536,10 @@ export class WorkflowExecution { try { return await thunk() } catch (error: unknown) { - if (isFatalWorkflowError(error)) throw error + // Hooks translate host errors at the realm boundary, so a fatal error + // reaches a thunk catch only as a realm clone (a script forging the + // shape merely kills its own run). + if (isFatalWorkflowErrorClone(error)) throw error return null } })) @@ -505,8 +572,9 @@ export class WorkflowExecution { return value } catch (error: unknown) { // An ordinary stage throw drops the ITEM to null and skips its - // remaining stages; a fatal error kills the whole script. - if (isFatalWorkflowError(error)) throw error + // remaining stages; a fatal error (a realm clone — see parallel()) + // kills the whole script. + if (isFatalWorkflowErrorClone(error)) throw error return null } })) diff --git a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts index 28c67dda14..d87d571295 100644 --- a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts +++ b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts @@ -288,9 +288,23 @@ describe('dsh-workflow-vm', () => { () => { throw new Error('boom') }, () => agent('fine'), () => 'plain value', + () => { throw 'string throw' }, + () => { throw new Proxy({ name: 'WorkflowError', fatal: true }, {}) }, + () => { throw { name: 'WorkflowError', fatal: 'forged-but-not-true' } }, ]) `)) - expect(result.value).toEqual([null, 'stub reply', 'plain value']) + // The last three probe the fatal-clone recognition: a non-object, a + // proxy (never inspected), and a shape miss are all ordinary nulls. + expect(result.value).toEqual([null, 'stub reply', 'plain value', null, null, null]) + }) + + it('a script forging a fatal clone kills only its own run (self-sabotage, not a bypass)', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script(` + return await parallel([() => { throw { name: 'WorkflowError', fatal: true, message: 'forged fatal' } }]) + `)) + expect(result.stopReason).toBe('error') + expect(result.error).toContain('forged fatal') }) it('FATAL errors propagate through parallel AND pipeline instead of dissolving into null', async () => { @@ -433,6 +447,86 @@ describe('dsh-workflow-vm', () => { expect((await run(ctx, parent, script('return typeof args'))).value).toBe('undefined') }) + it('hook promises are REALM promises: instanceof holds in-script, host Promise.prototype stays unreachable', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script(` + const p = agent('x') + const par = parallel([() => 'v']) + const pipe = pipeline([1], (n) => n) + Object.getPrototypeOf(p).wfLeakProbe = 'realm-only' + return { + agentIsRealmPromise: p instanceof Promise, + parallelIsRealmPromise: par instanceof Promise, + pipelineIsRealmPromise: pipe instanceof Promise, + value: await p, + } + `)) + expect(result.stopReason).toBe('completed') + expect(result.value).toEqual({ + agentIsRealmPromise: true, + parallelIsRealmPromise: true, + pipelineIsRealmPromise: true, + value: 'stub reply', + }) + expect((Promise.prototype as unknown as Record).wfLeakProbe).toBeUndefined() + delete (Promise.prototype as unknown as Record).wfLeakProbe + }) + + it('hook failures cross the boundary as realm-built WorkflowError clones', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script(` + try { + await agent('p', { bogus: true }) + return 'unreachable' + } catch (e) { + Object.getPrototypeOf(Object.getPrototypeOf(e)).wfErrLeakProbe = 'realm-only' + return { isRealmError: e instanceof Error, name: e.name, code: e.code, fatal: e.fatal, message: e.message } + } + `)) + expect(result.stopReason).toBe('completed') + expect(result.value).toMatchObject({ isRealmError: true, name: 'WorkflowError', code: 'UNSUPPORTED_OPTION', fatal: true }) + expect((result.value as { message: string }).message).toContain('"bogus" is not recognized') + // The script mutated its error's prototype CHAIN — host intrinsics untouched. + expect((Object.prototype as unknown as Record).wfErrLeakProbe).toBeUndefined() + expect((Error.prototype as unknown as Record).wfErrLeakProbe).toBeUndefined() + }) + + it('a non-WorkflowError host failure (a rejecting provider result) crosses as a generic realm clone', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const provider: SubagentProvider = { + name: 'rejecting', + capabilities: { outputSchema: true, depthLimit: true, toolFilter: true }, + start: () => ({ + id: AgentId('reject-child'), + result: Promise.reject(new Error('backend exploded')), + cancel: () => { /* nothing in flight */ }, + dispose: () => Promise.resolve(), + }), + } + ctx.subagents.registerProvider(provider) + await ctx.plugin(VmWorkflowEngine, { provider: 'rejecting' }) + const result = await run(ctx, fakeParent(), script(` + try { await agent('p'); return 'unreachable' } catch (e) { return { isRealmError: e instanceof Error, name: e.name, message: e.message } } + `)) + expect(result.value).toMatchObject({ isRealmError: true, name: 'Error' }) + expect((result.value as { message: string }).message).toContain('backend exploded') + }) + + it('phase()/log() synchronous throws cross as realm clones too', async () => { + const { ctx, parent } = await setup() + const result = await run(ctx, parent, script(` + try { phase(3) } catch (e) { + if (!(e instanceof Error) || e.name !== 'WorkflowError') throw e + } + try { log(3) } catch (e) { + return { isRealmError: e instanceof Error, name: e.name, message: e.message } + } + `)) + expect(result.value).toMatchObject({ isRealmError: true, name: 'WorkflowError' }) + expect((result.value as { message: string }).message).toContain('log() requires') + }) + it('parallel/pipeline resolve to REALM arrays: instanceof holds in-script, host intrinsics stay unreachable', async () => { const { ctx, parent } = await setup() const result = await run(ctx, parent, script(` From ad14b210bfb912d6de893508b84563e5e6d9586c Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Sun, 5 Jul 2026 21:46:38 +0800 Subject: [PATCH 019/232] test: cover skill config defaults --- .../core/agent-core/tests/agent-core.spec.ts | 35 ++++++++++++++++++ packages/core/skill/tests/skill.spec.ts | 4 +++ packages/ui/acp-agent/tests/acp-agent.spec.ts | 36 +++++++++++++++++++ .../ui/stdio-agent/tests/stdio-agent.spec.ts | 36 +++++++++++++++++++ 4 files changed, 111 insertions(+) diff --git a/packages/core/agent-core/tests/agent-core.spec.ts b/packages/core/agent-core/tests/agent-core.spec.ts index 75f0f5eef9..08bea5a573 100644 --- a/packages/core/agent-core/tests/agent-core.spec.ts +++ b/packages/core/agent-core/tests/agent-core.spec.ts @@ -43,6 +43,27 @@ async function mount(config?: agentCore.Config): Promise { } } +async function withIsolatedSkillHomes(run: () => Promise): Promise { + const oldDshHome = process.env.DSH_HOME + const oldAgentsHome = process.env.DSH_AGENTS_HOME + process.env.DSH_HOME = await mkdtemp(join(tmpdir(), 'dsh-agent-core-home-')) + process.env.DSH_AGENTS_HOME = await mkdtemp(join(tmpdir(), 'dsh-agent-core-agents-')) + try { + return await run() + } finally { + if (oldDshHome === undefined) { + delete process.env.DSH_HOME + } else { + process.env.DSH_HOME = oldDshHome + } + if (oldAgentsHome === undefined) { + delete process.env.DSH_AGENTS_HOME + } else { + process.env.DSH_AGENTS_HOME = oldAgentsHome + } + } +} + describe('dsh-agent-core bundle', () => { it('brings up the full providerless spine', async () => { const ctx = await mount() @@ -100,6 +121,20 @@ describe('dsh-agent-core bundle', () => { await ctx.fiber.dispose() }) + it('uses the default skill config when apply is called directly without skills', async () => { + await withIsolatedSkillHomes(async () => { + const ctx = new Context() + agentCore.apply(ctx, { agents: [] }) + await new Promise(resolve => setTimeout(resolve, 50)) + expect(ctx.skills).toBeDefined() + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(expect.arrayContaining([ + 'dsh-plugin-creator', + 'dsh-skill-creator', + ])) + await ctx.fiber.dispose() + }) + }) + it('re-exports the loop config schema as its own', () => { expect(agentCore.Config).toBeDefined() expect(agentCore.name).toBe('agent-core') diff --git a/packages/core/skill/tests/skill.spec.ts b/packages/core/skill/tests/skill.spec.ts index ef5d314190..183954ccdf 100644 --- a/packages/core/skill/tests/skill.spec.ts +++ b/packages/core/skill/tests/skill.spec.ts @@ -24,6 +24,7 @@ async function writeFlatSkill(root: string, name: string, description: string, b class TestFileSystem extends FileSystem { listDirCalls = 0 failResolvePaths = new Set() + failStatPaths = new Set() override async resolve(path: string): Promise { if (this.failResolvePaths.has(path)) throw new Error('resolve failed') @@ -31,6 +32,7 @@ class TestFileSystem extends FileSystem { } override async stat(target: FsTarget): Promise { + if (this.failStatPaths.has(target.displayPath)) throw new Error('stat failed') try { const fs = await import('node:fs/promises') const info = await fs.stat(target.displayPath) @@ -429,6 +431,7 @@ describe('SkillService', () => { const root = join(home, '.dsh/skills') await writeFlatSkill(root, 'text-skill', 'Text skill', 'Text body.') await writeFlatSkill(root, 'resolve-fail', 'Resolve fail', 'Resolve body.') + await writeFlatSkill(root, 'stat-fail', 'Stat fail', 'Stat body.') await mkdir(join(root, 'empty-dir'), { recursive: true }) await mkdir(join(root, 'directory-skill/SKILL.md'), { recursive: true }) await writeFile(join(root, 'binary-skill.md'), Buffer.concat([ @@ -441,6 +444,7 @@ describe('SkillService', () => { await ctx.plugin(TestFileSystem) const fs = ctx.fs as TestFileSystem fs.failResolvePaths.add(join(root, 'resolve-fail.md')) + fs.failStatPaths.add(join(root, 'stat-fail.md')) await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['text-skill']) diff --git a/packages/ui/acp-agent/tests/acp-agent.spec.ts b/packages/ui/acp-agent/tests/acp-agent.spec.ts index 98b5cee517..fd38670713 100644 --- a/packages/ui/acp-agent/tests/acp-agent.spec.ts +++ b/packages/ui/acp-agent/tests/acp-agent.spec.ts @@ -30,6 +30,28 @@ async function isolatedSkillsConfig(): Promise(run: () => Promise): Promise { + const oldDshHome = process.env.DSH_HOME + const oldAgentsHome = process.env.DSH_AGENTS_HOME + const home = await mkdtemp(join(tmpdir(), 'dsh-acp-agent-default-skills-')) + process.env.DSH_HOME = join(home, '.dsh') + process.env.DSH_AGENTS_HOME = join(home, '.agents') + try { + return await run() + } finally { + if (oldDshHome === undefined) { + delete process.env.DSH_HOME + } else { + process.env.DSH_HOME = oldDshHome + } + if (oldAgentsHome === undefined) { + delete process.env.DSH_AGENTS_HOME + } else { + process.env.DSH_AGENTS_HOME = oldAgentsHome + } + } +} + describe('dsh-acp-agent composition', () => { it('brings up the spine + persistence + the ACP bridge', async () => { const ctx = await mount({ model: 'mock', systemPrompt: 'hi', persistenceRoot: '/tmp/dsh-acp-agent-test', skills: await isolatedSkillsConfig() }) @@ -54,6 +76,20 @@ describe('dsh-acp-agent composition', () => { await ctx.fiber.dispose() }) + it('uses default skill config when apply is called directly without skills', async () => { + await withIsolatedSkillHomes(async () => { + const ctx = new Context() + acpAgent.apply(ctx, { model: 'mock', systemPrompt: 'hi' }) + await new Promise(resolve => setTimeout(resolve, 50)) + expect(ctx.skills).toBeDefined() + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(expect.arrayContaining([ + 'dsh-plugin-creator', + 'dsh-skill-creator', + ])) + await ctx.fiber.dispose() + }) + }) + it('forwards skill config into agent-core', async () => { const ctx = await mount({ model: 'mock', systemPrompt: 'hi', skills: await isolatedSkillsConfig() }) expect(await ctx.skills.list()).toEqual([]) diff --git a/packages/ui/stdio-agent/tests/stdio-agent.spec.ts b/packages/ui/stdio-agent/tests/stdio-agent.spec.ts index ba19bf9718..1eb32e62fe 100644 --- a/packages/ui/stdio-agent/tests/stdio-agent.spec.ts +++ b/packages/ui/stdio-agent/tests/stdio-agent.spec.ts @@ -36,6 +36,28 @@ async function isolatedSkillsConfig(): Promise(run: () => Promise): Promise { + const oldDshHome = process.env.DSH_HOME + const oldAgentsHome = process.env.DSH_AGENTS_HOME + const home = await mkdtemp(join(tmpdir(), 'dsh-stdio-agent-default-skills-')) + process.env.DSH_HOME = join(home, '.dsh') + process.env.DSH_AGENTS_HOME = join(home, '.agents') + try { + return await run() + } finally { + if (oldDshHome === undefined) { + delete process.env.DSH_HOME + } else { + process.env.DSH_HOME = oldDshHome + } + if (oldAgentsHome === undefined) { + delete process.env.DSH_AGENTS_HOME + } else { + process.env.DSH_AGENTS_HOME = oldAgentsHome + } + } +} + describe('dsh-stdio-agent app', () => { it('composes the spine + front-door cluster and pre-creates the main agent', async () => { const ctx = await mount({ model: 'mock', systemPrompt: 'hi', persistenceRoot: '/tmp/dsh-stdio-agent-spec', skills: await isolatedSkillsConfig() }) @@ -63,6 +85,20 @@ describe('dsh-stdio-agent app', () => { await ctx.fiber.dispose() }) + it('uses default skill config when apply is called directly without skills', async () => { + await withIsolatedSkillHomes(async () => { + const ctx = new Context() + stdioAgent.apply(ctx, { model: 'mock', systemPrompt: 'hi' }) + await new Promise(resolve => setTimeout(resolve, 80)) + expect(ctx.skills).toBeDefined() + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(expect.arrayContaining([ + 'dsh-plugin-creator', + 'dsh-skill-creator', + ])) + await ctx.fiber.dispose() + }) + }) + it('forwards resumeSessionId onto the pre-created agent when set', async () => { // A resume id defers agent creation until persistence loads; with no backing // session the resume is contained + logged, so no `main` agent registers — From 2accf85714885ae33fef40e58b30b3692f7ad3ec Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 6 Jul 2026 00:48:49 +0800 Subject: [PATCH 020/232] workflow: simplify to the trust premise; settle result on cancellation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Two review responses that belong together — the same review argued the engine was defending the wrong threat while a benign-input bug wedged the product. 1) Drop hostile-value containment; state the trust premise. Scripts are model-written — the same trust level as the model's bash access — yet successive pre-push review rounds had ratcheted in defenses that only matter against an adversarial author: trap-free proxy rejection, accessor-never-invoked descriptor walks, realm-side pre-rendering of thrown values, realm-built promises/arrays/error clones with structural fatal recognition. That same author keeps a documented, accepted, unkillable event-loop spin, so containing its error VALUES is cost without a threat model — and the planned hardened engine (worker/isolated-vm) gets value isolation by serialization and deletes all of this machinery anyway. What stays, because benign scripts hit it constantly: result never rejects; dropped hook promises cannot become unhandled rejections; the value boundary rejects LOUD everything JSON cannot carry (now a plain recursive walk — getters are read ordinarily and their result is what crosses; a throwing read fails loud); a "__proto__" key still copies as a data property; the fatal-vs-null combinator discipline (now host instanceof — unforgeable from the realm and simpler than clone-shape recognition). What changes for scripts (documented in the engine README): hooks hand back host values and host errors — in-script `instanceof Error` on a hook failure is false (branch on e.name/e.code) — and args are host-cloned once so a script cannot mutate the caller's object. realm.ts drops 289 → 173 lines; the hostile-value test tables go with it. The premise now leads the engine module doc, the README, and the RFC's engine section, with the removed machinery recorded under What was rejected. 2) result settles within the dispose grace of a cancellation. Review finding (verified through the real registry + tool + engine): a script parked on a promise no hook owns — `await new Promise(() => {})`, `await Promise.race([])`, a returned never-settling thenable — could not be settled by cancel(): hooks reject and children abort, but nothing touches a promise the engine does not own, so `result` stayed pending FOREVER (the previous cut even pinned that as intended). The tool awaits run.result BEFORE its disposing finally, the registry awaits the tool, the loop awaits the registry — one such script wedged the whole agent turn past any abort, unrecoverable in-process; the mock engine in the tool's abort test settles result on cancel, which is exactly the behavior the real engine lacked, so no existing test could see it. The seam contract now says it out loud: once a run is cancelled, result SETTLES within the implementation's bounded grace even if the script never does. The vm engine arms an abandon channel in cancel(); drive() races the script against it, force-settling 'cancelled' at the grace (the abandoned settlement stays contained; a post-slice synchronous spin remains the documented limitation). dispose()'s outer race now exists for child quiescence only, and `workflow/end` again fires exactly once per started run. The old 'result stays pending' pin is FLIPPED to the new contract (the pinned behavior was the bug); new regressions cover cancel-then-settle on a parked script, a never-settling returned thenable, and the full composition through the REAL registry + tool + vm engine (tool-workflow gains workflow-vm/subagent devDeps for it). agentsStarted JSDoc clarified while touching the vocabulary (accepted calls, including ones still queued at cancellation). --- docs/core-data-structures/workflow.md | 2 +- .../feature/2026-07-05-dynamic-workflows.md | 9 +- packages/workflow/tool-workflow/package.json | 2 + .../tool-workflow/tests/tool-workflow.spec.ts | 31 +++ packages/workflow/workflow-vm/README.md | 12 +- packages/workflow/workflow-vm/src/index.ts | 59 +++-- packages/workflow/workflow-vm/src/meta.ts | 15 +- packages/workflow/workflow-vm/src/realm.ts | 246 +++++------------- packages/workflow/workflow-vm/src/runtime.ts | 225 ++++++---------- .../workflow/workflow-vm/tests/meta.spec.ts | 20 +- .../workflow/workflow-vm/tests/realm.spec.ts | 99 +++---- .../workflow-vm/tests/workflow-vm.spec.ts | 208 ++++----------- packages/workflow/workflow/README.md | 2 +- packages/workflow/workflow/src/index.ts | 9 +- packages/workflow/workflow/src/types.ts | 16 +- pnpm-lock.yaml | 6 + 16 files changed, 352 insertions(+), 609 deletions(-) diff --git a/docs/core-data-structures/workflow.md b/docs/core-data-structures/workflow.md index 11f216f39e..8c7916a6c3 100644 --- a/docs/core-data-structures/workflow.md +++ b/docs/core-data-structures/workflow.md @@ -47,7 +47,7 @@ interface WorkflowResult { ## A live run: `WorkflowRun` -The handle the consumer holds while a script executes. The consumer awaits `result`, may `cancel` mid-flight, and MUST `dispose` on every path. `result` does NOT reject — a script failure resolves with `stopReason: 'error'` — so the consumer maps a non-`completed` reason to an `isError` result. `dispose()` cancels, waits a bounded grace for the script to settle AND its children to finish disposing, then abandons whatever is left (the engine documents the abandonment semantics); it never hangs on a stuck script. +The handle the consumer holds while a script executes. The consumer awaits `result`, may `cancel` mid-flight, and MUST `dispose` on every path. `result` does NOT reject — a script failure resolves with `stopReason: 'error'` — and once the run is cancelled it SETTLES within the engine's bounded grace even if the script itself never settles (the engine abandons the script and reports `cancelled`), so a consumer awaiting `result` is never wedged past a cancellation. `dispose()` = cancel + that bounded settle + child quiescence (the engine documents what abandonment leaves behind); it never hangs on a stuck script. ```ts type-equiv interface WorkflowRun { diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index 4d7061335e..f39f12f0ed 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -24,13 +24,13 @@ One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferre ### The engine (dsh-workflow-vm): in-process node:vm -**Why node:vm and not isolated-vm/worker threads**: isolated-vm is in maintenance mode, needs `--no-node-snapshot` on EVERY consumer process (including the published bins) on Node ≥ 20, and falls back to node-gyp source builds; a worker-thread engine turns every hook into RPC and complicates the per-file coverage gate. Scripts are model-written — the same trust level as the model's existing bash access — so genuine sandboxing is not the current requirement. The interface/implementation split exists precisely so a hardened engine can swap in later. Accepted, documented limitations: vm is not a security boundary, and the vm timeout covers only the initial synchronous slice — a pathological synchronous spin in realm code past that slice (an await continuation, or a thenable's `then` invoked by promise resolution — a returned thenable resolves per JavaScript semantics, which is what makes an un-awaited `return agent('x')` work) cannot be killed in-process; `dispose()` cancels, waits a bounded grace for the script to settle and its children to finish disposing, then abandons. +**Trust premise (governs every engine decision below)**: workflow scripts are MODEL-WRITTEN — the same trust level as the model's existing bash access — so the engine defends against BUGGY scripts, never hostile ones. In scope: `result` never rejects, no unhandled rejections from dropped hook promises, loud rejection of values JSON cannot carry, fatal-vs-null hook discipline, cancellation that always frees the caller. Out of scope, deliberately: adversarial values (throwing/spinning accessors, proxies with hostile traps, prototype forgery, `prepareStackTrace` hijack) — host code MAY run script code while reading script values, and that is accepted, because a hostile script can already occupy the event loop forever with a synchronous spin past its first await; containing its error VALUES while conceding it the event loop would be cost without a threat model. Genuine hardening is an engine swap behind the seam (worker/isolated-vm gets value isolation by serialization for free), not incremental host-side defenses. + +**Why node:vm and not isolated-vm/worker threads**: isolated-vm is in maintenance mode, needs `--no-node-snapshot` on EVERY consumer process (including the published bins) on Node ≥ 20, and falls back to node-gyp source builds; a worker-thread engine turns every hook into RPC and complicates the per-file coverage gate. Under the trust premise, in-process is enough. Accepted, documented limitations: `start()` blocks the caller for the script's initial synchronous slice (bounded by the vm timeout); that timeout covers ONLY the initial slice, so a synchronous spin past it (an await continuation, a thenable's `then` invoked by promise resolution — a returned thenable resolves per JavaScript semantics, which is what makes an un-awaited `return agent('x')` work — or script code the host runs while rendering a thrown value) cannot be killed in-process; `dispose()` cancels, waits a bounded grace for the script to settle and its children to finish disposing, then abandons. **Meta extraction**: a string/comment-aware brace scanner (template interpolation rejected) finds the literal; it is evaluated ALONE in an empty, timed vm context; the result must materialize to plain JSON data and pass shape validation (unknown fields rejected loud); the statement is blanked line-preservingly so stacks keep script line numbers. -**Realm boundary**: values entering the host (meta, hook options, schemas, the return value) go through `materializeFromRealm` — a descriptor walk that NEVER invokes accessors (the repo's `isJsonValue` is prototype-strict and getter-invoking, so it cannot run first; it would reject every cross-realm object and let realm code run outside the timed window) and rejects loud everything JSON cannot carry, proxies included (the trap-free `util.types.isProxy`, checked before any inspection, so realm-side traps never run on the host stack), copying via `Object.defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Values entering the realm are realm-built throughout, so the script never holds a live host-prototype object: `args` and `agent()` results via the context's own `JSON.parse`, combinator result arrays via its `Array.from`, hook promises via its `Promise.resolve`, and hook failures as realm-built clones (name/code/message/fatal — the combinators recognize fatal clones structurally). Realm functions (stages, thunks) are called, never materialized. - -**Containment**: every hook-returned promise carries a no-op rejection consumer, so a script that drops a promise cannot surface an unhandled rejection when cancellation rejects it — `dsh-app-boot` exits the process on unhandled rejections. Thrown script/meta values are pre-rendered to a string by a realm-side catch compiled into the wrapper (rendering runs inside the realm's own execution window, so a hostile `stack` getter dies by the vm sync-slice timeout like any other script code — host-side formatting of realm errors is unfixable in general, since V8 stack formatting invokes script-controllable `name`/`prepareStackTrace` hooks); the host catch descriptor-reads that string or falls back to `describeThrown` (fixed labels, own-data reads, an identity-verified host-native stack getter), so `result` cannot reject. Caps (`maxConcurrentAgents` auto = `min(16, cores - 2)`, `maxTotalAgents` 1000, `maxItemsPerCall` 4096) and timeouts are validated Config, not literals. +**Value boundary**: values entering the host (meta, hook options, schemas, the return value) go through `materializeFromRealm` — a plain recursive walk that rejects loud everything JSON cannot carry (exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`), copying via `Object.defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation; getters are read ordinarily and their RESULT crosses (a throwing read fails loud). Values entering the realm (`args`, `agent()` results, hook promises and failures, combinator arrays) are handed over directly as host values — the script is trusted, so host prototypes are not a leak; `args` is host-`structuredClone`d once so a script cannot mutate the caller's object. Hook failures are host `WorkflowError`s: the combinators recognize fatality by host `instanceof` (unforgeable from the realm), and the script-visible consequence — in-script `instanceof Error` is `false` for hook errors; branch on `e.name`/`e.code` — is documented in the engine README. Realm functions (stages, thunks) are called, never materialized. Thrown script values are rendered by a total host-side renderer (stack → message → `String()`, fixed label if rendering throws), so `result` cannot reject. Caps (`maxConcurrentAgents` auto = `min(16, cores - 2)`, `maxTotalAgents` 1000, `maxItemsPerCall` 4096) and timeouts are validated Config, not literals. ### The consumer (dsh-tool-workflow) @@ -42,6 +42,7 @@ A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, awai ## What was rejected +- **Hostile-value containment in the host** (trap-free proxy rejection, accessor-never-invoked descriptor walks, realm-side pre-rendering of thrown values, realm-built promises/arrays/error clones with structural fatal recognition): an earlier revision built all of it, and review showed the cost was real while the threat model was not — every one of those defenses guards against an author the premise already trusts, who retains an accepted unkillable event-loop spin regardless. Removed in favor of the plain boundary above; the hardened engine deletes such machinery anyway (serialization by construction). - **Background execution as the default** (CC's shape): deferred; foreground-synchronous matches `dsh-tool-subagent`'s cut, and background semantics should be designed ONCE across bash/subagent/workflow rather than per-tool. - **Workflow-layer JSON parsing for `agent({schema})`**: duplicating a seam concern at one consumer while the seam's capability flag stayed dishonestly `false`. - **Meta as tool parameters instead of `export const meta`**: zero parsing, but scripts stop being self-contained artifacts and CC-authored scripts stop being drop-in. diff --git a/packages/workflow/tool-workflow/package.json b/packages/workflow/tool-workflow/package.json index 9c3f819cb5..416b6a814f 100644 --- a/packages/workflow/tool-workflow/package.json +++ b/packages/workflow/tool-workflow/package.json @@ -35,9 +35,11 @@ "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", + "@deepseek-ai/dsh-subagent": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", "@deepseek-ai/dsh-workflow": "workspace:^", + "@deepseek-ai/dsh-workflow-vm": "workspace:^", "cordis": "^4.0.0-rc.6" } } diff --git a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts index 012fae4961..677cbbf7a9 100644 --- a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts +++ b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts @@ -9,6 +9,8 @@ import type { Agent } from '@deepseek-ai/dsh-agent' import { WorkflowRunId, WorkflowService } from '@deepseek-ai/dsh-workflow' import type { WorkflowResult, WorkflowRun, WorkflowStartRequest } from '@deepseek-ai/dsh-workflow' import { CallId } from '@deepseek-ai/dsh-llm' +import SubagentService from '@deepseek-ai/dsh-subagent' +import VmWorkflowEngine from '@deepseek-ai/dsh-workflow-vm' import * as toolWorkflow from '../src/index.ts' /** A controllable engine standing in behind ctx.workflows (the tool's only seam). */ @@ -221,4 +223,33 @@ describe('dsh-tool-workflow', () => { expect(unwrapped).toBe(toolWorkflow) expect(typeof unwrapped.apply).toBe('function') }) + + describe('composition with the REAL vm engine (the mock above must stay honest)', () => { + it('an abort releases the tool even when the script parks on a promise no hook owns', async () => { + // Regression for the review-found turn wedge: the tool awaits + // run.result BEFORE its disposing finally, the registry and the loop + // await the tool — so if cancellation could not settle result (a script + // parked on `await new Promise(() => {})`), an aborted turn stayed + // wedged forever. The seam now guarantees result settles within the + // grace of cancel(); this drives that guarantee through the real + // registry + real tool + real engine. + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(SubagentService) + await ctx.plugin(VmWorkflowEngine, { disposeGraceMs: 30 }) + await ctx.plugin(toolWorkflow, {}) + const parent = { id: AgentId('caller'), options: {} } as unknown as Agent + const controller = new AbortController() + const pending = execute(ctx, { + script: "export const meta = { name: 'stuck', description: 'parks forever' }\nawait new Promise(() => {})\nreturn 1", + }, { agent: parent, signal: controller.signal }) + // Give the run a beat to start (past its synchronous slice), then abort. + await new Promise(resolve => setTimeout(resolve, 20)) + controller.abort('user abort') + const result = await pending + expect(result.isError).toBe(true) + expect((result.content[0] as { text: string }).text).toContain('cancelled') + }) + }) }) diff --git a/packages/workflow/workflow-vm/README.md b/packages/workflow/workflow-vm/README.md index b5d8817735..0ec1116cb7 100644 --- a/packages/workflow/workflow-vm/README.md +++ b/packages/workflow/workflow-vm/README.md @@ -2,21 +2,25 @@ The first [`WorkflowService`](../workflow/README.md) implementation: an in-process **`node:vm` engine**. It parses the Claude Code-format script (`export const meta = {...}` + plain-JS body), runs the body in a fresh vm context with the workflow hooks injected, and fans `agent()` calls out to [`ctx.subagents`](../../subagent/README.md). +## Trust premise + +Workflow scripts are **model-written** — the same trust level as the model's existing bash access — so this engine defends against **buggy** scripts, never hostile ones. vm is NOT a security boundary and no attempt is made to contain adversarial values: property reads on script values may run script code (a getter, a `toString`, a proxy trap) on the host stack, and a script determined to hang the process can simply spin past its first await (see the limitations below). What the engine DOES guarantee, because benign scripts hit these constantly: `result` never rejects, a dropped hook promise never becomes an unhandled rejection (the app boot layer exits the process on those), values that JSON cannot carry are rejected **loud** instead of silently mangled, and hook misuse is fatal instead of dissolving into a per-item `null`. Genuine sandboxing is an engine swap behind the seam (worker-thread/isolated-vm, where the boundary is serialization by construction), not incremental host-side defenses here. + ## The script contract it executes - **Meta extraction** (`extractMeta`): a string/comment-aware brace scanner finds the leading `export const meta` literal (template interpolation rejected — the literal must be pure), evaluates it ALONE in an empty timed vm context, materializes the result to plain JSON data, validates the shape (`name`/`description` required; unknown fields rejected loud), and blanks the statement line-preservingly so error stacks keep the script's own line numbers. - **Hooks**: `agent(prompt, {label, phase, schema, model})` (schema = the [structured-output subset](../../core/tools/README.md), forwarded as `outputSchema`; result = validated object, or final text without a schema; a failed child resolves `null`), `parallel(thunks)`, `pipeline(items, ...stages)` with NO cross-stage barrier and `(prev, item, index)` stage callbacks, `phase(title)`, `log(message)`, and the `args` global. Anything else — `effort`/`isolation`/`agentType`, unknown options, malformed arguments, schemas outside the subset — throws a FATAL `WorkflowError` that `parallel`/`pipeline` re-throw rather than nulling (see the seam README's failure discipline). - **Determinism bans**: `Date.now()`, `Math.random()`, and argless `new Date()` throw (kept even though resume is deferred, so scripts stay resume-compatible); no timers, filesystem, or Node APIs exist in the context. -## Realm discipline +## The value boundary -Values ENTERING the host (the meta literal, hook options/schemas, the script's return) are materialized by `materializeFromRealm`: a descriptor walk that never invokes accessors and rejects loud everything JSON cannot carry (accessors, exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`, and proxies — rejected via the trap-free `util.types.isProxy` BEFORE any inspection could run a realm-side trap on the host stack), copying into host containers via `defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Values ENTERING the realm are realm-built throughout, so the script never holds an object whose prototype chain reaches host intrinsics: `args` and `agent()` results are rebuilt through the context's own `JSON.parse`, combinator result arrays through its `Array.from`, hook promises through its `Promise.resolve`, and a hook failure (rejection or synchronous `phase`/`log` throw) crosses as a realm-built clone carrying name/code/message/fatal — the combinators recognize fatal clones structurally, so the fatal-vs-null discipline survives the boundary. +Values ENTERING the host (the meta literal, hook options/schemas, the script's return) are materialized by `materializeFromRealm`: a plain recursive walk that rejects loud everything JSON cannot carry (exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`), copying into host containers via `defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Getters are read ordinarily — the RESULT is what crosses; a read that throws fails loud. Values ENTERING the realm (`args`, `agent()` results, hook promises and their failures, combinator arrays) are handed over directly as host values — the script is trusted, so host prototypes are not a leak; `args` is `structuredClone`d once at start so a script scribbling on it cannot mutate the caller's object. One script-visible consequence: an error thrown by a hook is a HOST error, so `e instanceof Error` inside the script is `false` — branch on `e.name`/`e.code` instead (the combinators recognize fatality by host `instanceof`, which a script-built object can never pass, so fatal-vs-null cannot be forged or dissolved). ## Limits, cancellation, disposal -Per-run: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` aborts every child (a shared `AbortSignal`), rejects waiting `agent()` slots, and makes every future hook call throw `CANCELLED` — the script dies at its next await and the run settles `cancelled`; a cancellation that lands before the body runs (or before it settles) reports `cancelled` even if the script itself needed no hooks. Once a run settles, stray children a script fired without awaiting are aborted too, and `dispose()` waits for those children to finish disposing (bounded by the grace) before returning. Every hook-returned promise carries a no-op rejection consumer, so a dropped promise cannot surface an unhandled rejection (the app boot layer exits the process on those). Thrown script values are pre-rendered to a string INSIDE the realm's execution window (the body is compiled into a realm-side catch), so a hostile `stack` getter is subject to the vm sync-slice timeout like any other script code; the host catch only descriptor-reads that string, falling back to `describeThrown` (fixed labels, own-data reads, an identity-verified host-native stack getter) — `result` cannot reject. +Per-run: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` aborts every child (a shared `AbortSignal`), rejects waiting `agent()` slots, and makes every future hook call throw `CANCELLED` — the script dies at its next await and the run settles `cancelled`; a cancellation that lands before the body runs (or before it settles) reports `cancelled` even if the script itself needed no hooks, and a script that STILL has not settled `disposeGraceMs` after the cancel (parked on a promise no hook owns, like `await new Promise(() => {})`) is ABANDONED with `result` force-settling `cancelled` — a consumer awaiting `result` is never wedged past a cancellation. Once a run settles, stray children a script fired without awaiting are aborted too, and `dispose()` waits for those children to finish disposing (bounded by the grace) before returning. Every hook-returned promise carries a no-op rejection consumer, so a dropped promise cannot surface an unhandled rejection; thrown script values are rendered by a total host-side renderer (stack, then message, then `String()`, with a fixed label if rendering itself throws) — `result` cannot reject. -**Documented limitations** (the accepted cost of the in-process mechanism; the seam exists so a worker-thread/isolated-vm engine can swap in): vm is NOT a security boundary — scripts are model-written, the same trust level as the model's bash access — and the vm `timeout` covers only the initial synchronous slice, so a pathological synchronous spin in realm code past that slice (an await continuation, or a thenable's `then` invoked by promise resolution) cannot be killed; `dispose()` waits `disposeGraceMs` then ABANDONS such a script (its settlement stays contained, but an abandoned spin would still occupy the event loop). A returned promise or thenable resolves per JavaScript semantics BEFORE materialization — that is what makes an un-awaited `return agent('x')` work — and the realm-boundary guard applies to the resolution. +**Documented limitations** (the accepted cost of the in-process mechanism; the seam exists so a worker-thread/isolated-vm engine can swap in): `start()` runs the script's initial synchronous slice inline, so the caller blocks until the first await or the vm `timeout`; that `timeout` covers ONLY the initial slice, so a synchronous spin past it (an await continuation, a thenable's `then` invoked by promise resolution, or script code the host runs while rendering a thrown value) cannot be killed; `dispose()` waits `disposeGraceMs` then ABANDONS such a script (its settlement stays contained, but an abandoned spin would still occupy the event loop). A returned promise or thenable resolves per JavaScript semantics BEFORE materialization — that is what makes an un-awaited `return agent('x')` work — and the value-boundary guard applies to the resolution. ## Config diff --git a/packages/workflow/workflow-vm/src/index.ts b/packages/workflow/workflow-vm/src/index.ts index d0c8d8abfc..9b8c646aa9 100644 --- a/packages/workflow/workflow-vm/src/index.ts +++ b/packages/workflow/workflow-vm/src/index.ts @@ -4,25 +4,33 @@ * body in a fresh in-process vm context with the workflow hooks injected, and * fans `agent()` calls out to `ctx.subagents`. * - * Engine limitations, documented as the accepted cost of the in-process - * mechanism (the interface/implementation seam exists precisely so a - * worker-thread or isolated-vm engine can swap in if these ever matter): + * TRUST PREMISE: scripts are MODEL-WRITTEN — the same trust level as the + * model's existing bash access — so this engine defends against BUGGY + * scripts, never hostile ones. vm is NOT a security boundary and no attempt + * is made to contain adversarial values (see ./realm.ts); genuine sandboxing + * is an engine swap behind the seam (worker-thread/isolated-vm), not + * incremental host-side defenses here. * - * - vm is NOT a security boundary. Scripts are model-written — the same trust - * level as the model's bash access — and the realm-boundary materialization - * is correctness containment, not a sandbox. - * - The vm `timeout` covers only the initial SYNCHRONOUS slice of the script; - * realm code that runs past that slice — an await continuation, a - * thenable's `then` invoked by promise resolution (including one the script - * RETURNS: a returned thenable resolves per JavaScript semantics before - * materialization, which is what makes an un-awaited `return agent('x')` - * work) — is beyond the timeout, so a pathological synchronous spin there - * cannot be killed in-process. `dispose()` waits a bounded grace for the - * script to settle AND its children (stray `agent()` calls included) to - * finish disposing, then ABANDONS whatever is left: pending hook promises - * are already rejected and the script's settlement is contained (no - * unhandled rejection), but an abandoned synchronous spin would still - * occupy the event loop. + * Engine limitations, documented as the accepted cost of the in-process + * mechanism: + * + * - `start()` runs the script's initial SYNCHRONOUS slice inline, so the + * CALLER blocks on the host event loop until the script's first await (or + * the vm `timeout` kills the slice); the meta-literal evaluation has its + * own timeout budget on the same call. + * - The vm `timeout` covers only that initial slice; realm code running past + * it — an await continuation, a thenable's `then` invoked by promise + * resolution (including one the script RETURNS: a returned thenable + * resolves per JavaScript semantics before materialization, which is what + * makes an un-awaited `return agent('x')` work) — is beyond the timeout, so + * a synchronous spin there cannot be killed in-process, and neither can + * script code the host invokes while rendering a failure (a getter on a + * thrown value). `dispose()` waits a bounded grace for the script to settle + * AND its children (stray `agent()` calls included) to finish disposing, + * then ABANDONS whatever is left: pending hook promises are already + * rejected and the script's settlement is contained (no unhandled + * rejection), but an abandoned synchronous spin would still occupy the + * event loop. * * Plugin export shape: a default-exported {@link WorkflowService} subclass * (the class-based service form, like `dsh-bash-local`). @@ -55,7 +63,11 @@ export interface Config { maxItemsPerCall?: number /** vm timeout for the script's initial synchronous slice AND the meta-literal evaluation (default 5000 ms). */ syncTimeoutMs?: number - /** How long `dispose()` waits for a cancelled script to settle before abandoning it (default 5000 ms). */ + /** + * How long after a cancellation an unsettled script may keep running before + * it is abandoned and `result` force-settles `cancelled` (default 5000 ms); + * also bounds `dispose()`. + */ disposeGraceMs?: number } @@ -110,6 +122,7 @@ export class VmWorkflowEngine extends WorkflowService { maxTotalAgents: this.config.maxTotalAgents, maxItemsPerCall: this.config.maxItemsPerCall, syncTimeoutMs: this.config.syncTimeoutMs, + disposeGraceMs: this.config.disposeGraceMs, } const execution = new WorkflowExecution( this.ctx, @@ -149,9 +162,11 @@ export class VmWorkflowEngine extends WorkflowService { }, dispose: (): Promise => { // Idempotent: cancel, then wait min(settle + child quiescence, grace). - // `result` and `quiesce()` never reject, so the race needs no - // rejection handling; a script or child still unsettled past the grace - // is abandoned per the module contract. + // The cancel itself bounds `result` (the execution abandons a script + // still unsettled `disposeGraceMs` later), so this outer race exists + // for CHILD quiescence: a slow-disposing child must not hold dispose + // past the grace. `result` and `quiesce()` never reject, so the race + // needs no rejection handling. disposed ??= (async () => { execution.cancel('workflow disposed') await Promise.race([ diff --git a/packages/workflow/workflow-vm/src/meta.ts b/packages/workflow/workflow-vm/src/meta.ts index bcb891e85e..cfe3e4d381 100644 --- a/packages/workflow/workflow-vm/src/meta.ts +++ b/packages/workflow/workflow-vm/src/meta.ts @@ -20,7 +20,7 @@ import * as vm from 'node:vm' import { WorkflowError } from '@deepseek-ai/dsh-workflow' import type { WorkflowMeta, WorkflowPhase } from '@deepseek-ai/dsh-workflow' -import { materializeFromRealm, MaterializeError, describeThrown, thrownRendering, REALM_THROWN_RENDERER_SOURCE } from './realm.ts' +import { materializeFromRealm, MaterializeError, renderThrown } from './realm.ts' /** The result of {@link extractMeta}: the validated meta and the runnable body. */ export interface ExtractedScript { @@ -171,18 +171,11 @@ export function extractMeta(script: string, evalTimeoutMs: number): ExtractedScr // An EMPTY context: any non-literal reference (a variable, a call) throws // here. The result — data only — is what the contract checks; a getter or // IIFE can still run, which is why the timeout and the materialization - // below are part of the same boundary. A thrown value is pre-rendered by - // the realm-side catch INSIDE the timed window, so a hostile - // stack/message/toString can neither run on the host catch path nor - // outlive the timeout. - evaluated = vm.runInNewContext( - `(() => { try { return (${literal}) } catch (e) { throw (${REALM_THROWN_RENDERER_SOURCE})(e) } })()`, - undefined, - { timeout: evalTimeoutMs }, - ) + // below are part of the same boundary. + evaluated = vm.runInNewContext(`(${literal})`, undefined, { timeout: evalTimeoutMs }) } catch (error: unknown) { throw new WorkflowError( - `meta block failed to evaluate as a pure literal: ${thrownRendering(error) ?? describeThrown(error)}`, + `meta block failed to evaluate as a pure literal: ${renderThrown(error)}`, 'META_INVALID', { cause: error }, ) diff --git a/packages/workflow/workflow-vm/src/realm.ts b/packages/workflow/workflow-vm/src/realm.ts index c1f1ff7c5c..f5a2665626 100644 --- a/packages/workflow/workflow-vm/src/realm.ts +++ b/packages/workflow/workflow-vm/src/realm.ts @@ -1,48 +1,34 @@ /** - * Realm-boundary materialization for the vm engine. + * The vm engine's value boundary: copy script-realm values into plain host + * JSON data — loud about everything JSON cannot carry — and render thrown + * script values to failure text. * - * Values produced INSIDE the script realm (the meta literal, hook arguments, - * the script's return value) must become plain host-realm JSON data before the - * host touches them. The repo's `isJsonValue` guard cannot run first: it is - * prototype-strict (any cross-realm object fails it) and it INVOKES getters - * (letting realm code run outside the vm's timed window). So this module walks - * own-property DESCRIPTORS — never invoking accessors — and copies data into - * host containers, rejecting loud everything JSON cannot carry: - * accessor properties, non-plain prototypes, functions, symbols (keys or - * values), bigints, non-finite numbers, `undefined` values, cycles, sparse - * arrays, arrays with non-index own properties, and proxies. Proxies are - * rejected via the trap-free native `util.types.isProxy` check BEFORE any - * other inspection — a descriptor walk over a proxy would otherwise run its - * realm-side traps (`ownKeys`, `getOwnPropertyDescriptor`, `getPrototypeOf`) - * on the host stack, outside the vm's timed window, and a throwing trap would - * escape as a raw realm error instead of a {@link MaterializeError}. The same - * check guards the PROTOTYPE position (an object whose prototype is a proxy). + * TRUST PREMISE (everything in this module hangs on it): workflow scripts are + * MODEL-WRITTEN, the same trust level as the model's existing bash access, so + * this boundary guards against BUGGY scripts, not hostile ones. It rejects + * loud what JSON would silently mangle — functions, symbols, bigints, + * non-finite numbers, nested `undefined`, cycles, sparse arrays, exotic + * prototypes — because accepted-then-ignored is this repo's banned failure + * mode. It does NOT defend against adversarial values: the walk reads + * properties ordinarily (a getter runs, and whatever it returns is what + * crosses), {@link renderThrown} reads `stack`/`message`/`String()` directly, + * and a proxy is walked through its traps. A hostile script gains nothing + * worth defending here — it can already occupy the event loop forever with a + * synchronous spin past the first await (the engine's documented, accepted + * limitation) — so host-side hostile-value containment would be cost without + * a threat model; genuine hardening is an ENGINE SWAP (worker/isolated-vm, + * where the boundary is serialization by construction), not incremental + * defenses here. * - * Host objects are built with `Object.defineProperty` into a fresh `{}` — - * never plain `target[key] =` assignment, which a `"__proto__"` key would turn - * into prototype mutation instead of a data property. - * - * The host→realm direction deliberately does NOT live here: a host object - * handed into the realm would expose host intrinsics through its prototype - * chain, so the engine rebuilds inbound values INSIDE the realm via the - * context's own `JSON.parse` (see the runtime). - * - * {@link REALM_THROWN_RENDERER_SOURCE}, {@link thrownRendering}, and - * {@link describeThrown} are the same discipline for the one place realm - * values reach the host WITHOUT materialization: a thrown value crossing into - * a host catch block. The renderer runs INSIDE the realm's own execution - * window (compiled into the script wrapper), so reading a hostile - * accessor/`toString` there is subject to the vm sync-slice timeout exactly - * like any other script code; the host side only descriptor-reads the - * pre-rendered string, or falls back to {@link describeThrown}, which invokes - * no getter whose function identity is not the host realm's own native stack - * getter. + * The host→realm direction needs no machinery at all: hooks hand the script + * plain host values, host prototypes included — the script is trusted. One + * consequence is documented in the engine README: an error thrown by a hook + * is a HOST error, so an in-script `instanceof Error` check is false; read + * `name`/`code`/`message` instead. * * @module @deepseek-ai/dsh-workflow-vm/realm */ -import { types } from 'node:util' - /** Thrown by {@link materializeFromRealm}; the caller wraps it into the right `WorkflowError` code. */ export class MaterializeError extends Error { constructor(public readonly path: string, public readonly reason: string) { @@ -52,154 +38,63 @@ export class MaterializeError extends Error { } /** - * Realm-SOURCE text (an arrow-function expression) the engine compiles into - * its script wrappers: `throw (RENDERER)(e)` inside a catch around the whole - * body/literal. It renders the thrown value to a string INSIDE the realm's - * own execution window — a hostile `stack`/`message` accessor or `toString` - * invoked here is subject to the vm sync-slice timeout like any other script - * code (and post-await it is the engine's accepted spin limitation, identical - * to a script reading `e.stack` in its own catch). Host `WorkflowError`s - * thrown by hooks pass through unwrapped (duck-checked by name — a realm - * forgery fails the host's `instanceof` and merely renders data-only); - * everything else becomes `{ __wfThrown: }`, whose only consumer is - * {@link thrownRendering}. Every read is individually contained, so the - * renderer itself never throws. - */ -export const REALM_THROWN_RENDERER_SOURCE = `(e) => { - try { if (e && e.name === 'WorkflowError') return e } catch { /* hostile name getter: fall through to rendering */ } - const rendered = (() => { - try { if (e && typeof e.stack === 'string' && e.stack.length > 0) return e.stack } catch { /* hostile stack getter */ } - try { if (e && typeof e.message === 'string') return e.message } catch { /* hostile message getter */ } - try { return String(e) } catch { /* hostile toString/Symbol.toPrimitive */ } - return '[unrenderable thrown value]' - })() - return { __wfThrown: rendered } -}` - -/** - * The pre-rendered failure text carried by a realm-catch wrapper object - * (`{ __wfThrown: string }` from {@link REALM_THROWN_RENDERER_SOURCE}), or - * `undefined` when `error` is not such a wrapper. Descriptor-read and - * proxy-guarded: never invokes user code. - * @param error - the value a host catch received from script execution. - * @returns the realm-rendered string, or `undefined` to fall back to - * {@link describeThrown}. - */ -export function thrownRendering(error: unknown): string | undefined { - if (typeof error !== 'object' || error === null || types.isProxy(error)) return undefined - const value = ownDataProperty(error, '__wfThrown') - return typeof value === 'string' ? value : undefined -} - -/** - * The host realm's own native `stack` getter (modern V8 makes `stack` an own - * ACCESSOR on Errors); `undefined` where it is a data property. Typed through - * a structural view of the descriptor — it is only ever identity-compared or - * `.call`ed on an explicit receiver, never invoked unbound. - */ -const HOST_STACK_GETTER: unknown = (Object.getOwnPropertyDescriptor(new Error(), 'stack') as { get?: unknown } | undefined)?.get - -/** - * Render a thrown value HOST-SIDE without ever throwing and without running - * any code the host does not own: proxies become a fixed label (trap-free - * `isProxy` before any inspection); `stack` is read as an own data descriptor, - * or through its getter ONLY when that getter's function identity is the host - * realm's own native stack getter (an unforgeable check — realm code cannot - * hold that identity, and the host realm's `prepareStackTrace` is the host's - * own trust domain); `message` is an own-data read; anything else - * object-shaped renders as `[object Object]` untouched; only primitives - * (which cannot carry code) reach `String()`. Used for host-thrown errors - * (vm timeouts, `WorkflowError`s) and as the fallback for adversarial values - * that bypassed the realm-side renderer (e.g. a hostile thenable rejection); - * ordinary script failures arrive pre-rendered via {@link thrownRendering}. + * Render a thrown value to failure text without ever throwing: prefer the + * `stack` (host or realm — a realm error's `stack` is a plain string read), + * fall back to `message`, then `String()`. Reading those properties MAY run + * script code (a getter, `toString`) — accepted under the module's trust + * premise; if that code itself throws, a fixed label is returned instead. * @param error - the thrown value, of any shape and any realm. * @returns human-readable text for the failure report; prefers the stack. */ -export function describeThrown(error: unknown): string { - switch (typeof error) { - case 'object': - break - case 'function': - return '[thrown function]' - default: - // Primitives (string/number/boolean/bigint/symbol/undefined): String() - // cannot reach user code on these. - return String(error) +export function renderThrown(error: unknown): string { + try { + const stack = (error as { stack?: unknown } | null | undefined)?.stack + if (typeof stack === 'string' && stack.length > 0) return stack + const message = (error as { message?: unknown } | null | undefined)?.message + if (typeof message === 'string' && message.length > 0) return message + return String(error) + } catch { + // A throwing accessor/toString on the thrown value — rendering must be + // total (drive()'s never-reject contract), so fall back to a fixed label. + return '[unrenderable thrown value]' } - if (error === null) return 'null' - if (types.isProxy(error)) return '[thrown proxy]' - const stack = readStack(error) - if (typeof stack === 'string' && stack.length > 0) return stack - const message = ownDataProperty(error, 'message') - if (typeof message === 'string') return message - return '[object Object]' -} - -/** - * Read `error.stack` without running foreign code: an own DATA descriptor is - * read directly; an accessor is invoked only on function identity with - * {@link HOST_STACK_GETTER} (never a realm or user function). The native - * getter returns `undefined` on a non-Error receiver rather than throwing. - */ -function readStack(error: object): unknown { - const descriptor = Object.getOwnPropertyDescriptor(error, 'stack') - if (descriptor === undefined) return undefined - if ('value' in descriptor) return descriptor.value - if (typeof descriptor.get !== 'function') return undefined - if (descriptor.get !== HOST_STACK_GETTER) return undefined - return descriptor.get.call(error) -} - -/** An own DATA property's value (`undefined` for absent or accessor); never invokes user code on a non-proxy object. */ -function ownDataProperty(value: object, key: string): unknown { - const descriptor = Object.getOwnPropertyDescriptor(value, key) - return descriptor !== undefined && 'value' in descriptor ? descriptor.value : undefined -} - -/** - * Whether `error` is a FATAL realm-built `WorkflowError` clone — the shape the - * engine's hooks reject with (host errors are translated at the realm boundary - * so the script never holds host prototypes), duck-checked because a realm - * object cannot be an `instanceof` the host class. Proxy-guarded and - * descriptor-read, so a forged object cannot run code here; a script forging - * the shape only kills its own run (self-sabotage). Combinators use this to - * decide re-throw vs per-item `null`. - * @param error - the value a combinator caught from a realm thunk/stage. - * @returns `true` when the error must propagate and kill the script. - */ -export function isFatalWorkflowErrorClone(error: unknown): boolean { - if (typeof error !== 'object' || error === null || types.isProxy(error)) return false - return ownDataProperty(error, 'name') === 'WorkflowError' && ownDataProperty(error, 'fatal') === true } /** * Whether an object's prototype chain is data-shaped: `null`, or a prototype * whose own prototype is `null` (the realm's `Object.prototype` — which we * cannot compare by identity across realms). A `Date`/`Map`/class instance - * has a longer chain and is rejected, as is a proxy sitting in the prototype - * position (checked trap-free BEFORE its own prototype is dereferenced). + * has a longer chain and is rejected. */ function hasPlainPrototype(value: object): boolean { const proto: unknown = Object.getPrototypeOf(value) if (proto === null) return true - if (types.isProxy(proto)) return false return Object.getPrototypeOf(proto) === null } /** * Copy `value` (typically from the vm realm) into plain host JSON data. * Throws {@link MaterializeError} naming the offending path for anything JSON - * cannot carry losslessly. Accessors are detected via descriptors and NEVER - * invoked. `undefined` is accepted only at the ROOT (a script with no - * `return` value) — the caller decides what it means; an `undefined` nested - * INSIDE a container is a violation. + * cannot carry losslessly. Properties are read ordinarily — a getter runs and + * its RESULT is materialized; a read that throws surfaces as a + * {@link MaterializeError} carrying the rendered failure. `undefined` is + * accepted only at the ROOT (a script with no `return` value) — the caller + * decides what it means; an `undefined` nested INSIDE a container is a + * violation. * @param value - the realm value to materialize. * @param root - the path label for the root value (error messages). * @returns the host-realm copy (plain objects/arrays/scalars only). */ export function materializeFromRealm(value: unknown, root = 'value'): unknown { if (value === undefined) return undefined - return materialize(value, root, new Set()) + try { + return materialize(value, root, new Set()) + } catch (error: unknown) { + if (error instanceof MaterializeError) throw error + // A property read ran script code that threw; total-ize it so callers can + // keep the narrow MaterializeError contract. + throw new MaterializeError(root, `reading the value threw: ${renderThrown(error)}`) + } } function materialize(value: unknown, path: string, seen: Set): unknown { @@ -214,20 +109,15 @@ function materialize(value: unknown, path: string, seen: Set): unknown { case 'bigint': throw new MaterializeError(path, 'bigints are not JSON data') case 'function': - throw new MaterializeError(path, 'functions cannot cross the workflow realm boundary') + throw new MaterializeError(path, 'functions cannot cross the workflow value boundary') case 'symbol': - throw new MaterializeError(path, 'symbols cannot cross the workflow realm boundary') + throw new MaterializeError(path, 'symbols cannot cross the workflow value boundary') case 'undefined': throw new MaterializeError(path, 'undefined is not JSON data') case 'object': break } if (value === null) return null - // BEFORE anything else touches the object: every inspection below — - // Array.isArray aside — can trigger a proxy trap, running realm code on the - // host stack (module doc). isProxy is a native internal-slot check (no - // traps, catches revoked proxies, realm-agnostic). - if (types.isProxy(value)) throw new MaterializeError(path, 'proxies cannot cross the workflow realm boundary') const objectValue: object = value if (seen.has(objectValue)) throw new MaterializeError(path, 'circular references are not JSON data') seen.add(objectValue) @@ -242,10 +132,8 @@ function materialize(value: unknown, path: string, seen: Set): unknown { function materializeArray(value: unknown[], path: string, seen: Set): unknown[] { const out: unknown[] = [] for (let index = 0; index < value.length; index++) { - const descriptor = Object.getOwnPropertyDescriptor(value, index) - if (descriptor === undefined) throw new MaterializeError(`${path}[${index}]`, 'sparse arrays are not JSON data') - if (!('value' in descriptor)) throw new MaterializeError(`${path}[${index}]`, 'accessor properties cannot cross the workflow realm boundary') - out.push(materialize(descriptor.value, `${path}[${index}]`, seen)) + if (!(index in value)) throw new MaterializeError(`${path}[${index}]`, 'sparse arrays are not JSON data') + out.push(materialize(value[index], `${path}[${index}]`, seen)) } // Own enumerable props beyond the indices (e.g. `arr.total = 3`) would be // silently dropped by JSON — reject them instead. @@ -256,7 +144,7 @@ function materializeArray(value: unknown[], path: string, seen: Set): un } } if (Object.getOwnPropertySymbols(value).length > 0) { - throw new MaterializeError(path, 'symbol-keyed properties cannot cross the workflow realm boundary') + throw new MaterializeError(path, 'symbol-keyed properties cannot cross the workflow value boundary') } return out } @@ -266,20 +154,16 @@ function materializeObject(value: object, path: string, seen: Set): Reco throw new MaterializeError(path, 'only plain objects and arrays are JSON data (exotic prototype)') } if (Object.getOwnPropertySymbols(value).length > 0) { - throw new MaterializeError(path, 'symbol-keyed properties cannot cross the workflow realm boundary') + throw new MaterializeError(path, 'symbol-keyed properties cannot cross the workflow value boundary') } const out: Record = {} - for (const [key, descriptor] of Object.entries(Object.getOwnPropertyDescriptors(value))) { - // Non-enumerable own props never reach JSON output — skip them, matching - // JSON.stringify's contract exactly (documented in the module doc). - if (!descriptor.enumerable) continue - if (!('value' in descriptor)) { - throw new MaterializeError(`${path}.${key}`, 'accessor properties cannot cross the workflow realm boundary') - } + // Object.keys = own enumerable string keys, matching JSON.stringify's + // property selection exactly (non-enumerable props never reach JSON output). + for (const key of Object.keys(value)) { // defineProperty, never assignment: a "__proto__" key must become an OWN // data property of the copy, not a prototype mutation. Object.defineProperty(out, key, { - value: materialize(descriptor.value, `${path}.${key}`, seen), + value: materialize((value as Record)[key], `${path}.${key}`, seen), enumerable: true, writable: true, configurable: true, diff --git a/packages/workflow/workflow-vm/src/runtime.ts b/packages/workflow/workflow-vm/src/runtime.ts index 955be94a87..7748cb2f2e 100644 --- a/packages/workflow/workflow-vm/src/runtime.ts +++ b/packages/workflow/workflow-vm/src/runtime.ts @@ -4,30 +4,27 @@ * concurrency semaphore and caps, cancellation, and the drive loop that turns * a script settlement into a {@link WorkflowResult}. * - * Realm discipline (see also ./realm.ts): values ENTERING the host from the - * script (hook options, schemas, the return value) are materialized via - * descriptor walks; values ENTERING the realm from the host (`args`, agent() - * results) are rebuilt INSIDE the realm through the context's own - * `JSON.parse`, so the script never holds an object whose prototype chain - * reaches host intrinsics. The same rule covers every other value a hook - * hands the script: the promises `agent`/`parallel`/`pipeline` return are - * realm promises (the realm's own `Promise.resolve` over the host promise), - * the arrays the combinators resolve to are realm-built (their ELEMENTS are - * realm values already — only the container needs rebuilding), and a hook - * failure — rejection or synchronous `phase`/`log` throw — crosses as a - * realm-built clone carrying name/code/message/fatal. Realm functions - * (pipeline stages, parallel thunks) are called, not materialized — their - * values stay realm-side. + * Value boundary (the trust premise lives in ./realm.ts): values ENTERING the + * host from the script (hook options, schemas, the return value) are + * materialized by `materializeFromRealm` — a plain walk that rejects loud + * everything JSON cannot carry. Values ENTERING the realm (`args`, `agent()` + * results, hook promises and their failures, combinator arrays) are handed + * over DIRECTLY as host values: the script is model-written and trusted, so + * host prototypes are not a leak. `args` is host-side `structuredClone`d once + * at start so a script scribbling on it cannot mutate the caller's object — + * that is a benign-bug guard, not isolation. Realm functions (pipeline + * stages, parallel thunks) are called, not materialized — their values stay + * realm-side until they cross through a hook or the final return. * * Failure discipline: fatal {@link WorkflowError}s (bad hook arguments, * unsupported options/schemas, tripped caps, seam start failures, - * cancellation) ALWAYS propagate through `parallel`/`pipeline` — they cross - * the realm boundary as fatal clones, recognized structurally — and the - * per-item `null` is reserved for child-run failures and ordinary in-stage - * script errors. Every hook-returned promise gets a no-op rejection consumer - * attached, so a script that drops a promise (fires an `agent()` without - * awaiting it) cannot surface an unhandled rejection when cancellation - * rejects it — the app boot layer exits the process on unhandled rejections. + * cancellation) ALWAYS propagate through `parallel`/`pipeline` — recognized + * by host `instanceof`, which a script cannot forge — and the per-item `null` + * is reserved for child-run failures and ordinary in-stage script errors. + * Every hook-returned promise gets a no-op rejection consumer attached, so a + * script that drops a promise (fires an `agent()` without awaiting it) cannot + * surface an unhandled rejection when cancellation rejects it — the app boot + * layer exits the process on unhandled rejections. * * @module @deepseek-ai/dsh-workflow-vm/runtime */ @@ -39,14 +36,14 @@ import type { Agent } from '@deepseek-ai/dsh-agent' import type {} from '@deepseek-ai/dsh-subagent' import { assertSupportedOutputSchema, OutputSchemaError } from '@deepseek-ai/dsh-tools' import type { StructuredOutputSchema } from '@deepseek-ai/dsh-tools' -import { WorkflowError } from '@deepseek-ai/dsh-workflow' +import { isFatalWorkflowError, WorkflowError } from '@deepseek-ai/dsh-workflow' import type { WorkflowAgentEndInfo, WorkflowAgentInfo, WorkflowMeta, WorkflowResult, } from '@deepseek-ai/dsh-workflow' -import { materializeFromRealm, MaterializeError, describeThrown, thrownRendering, isFatalWorkflowErrorClone, REALM_THROWN_RENDERER_SOURCE } from './realm.ts' +import { materializeFromRealm, MaterializeError, renderThrown } from './realm.ts' /** The per-run knobs the engine resolves from its Config. */ export interface ExecutionLimits { @@ -60,6 +57,8 @@ export interface ExecutionLimits { maxItemsPerCall: number /** vm timeout for the script's initial synchronous slice. */ syncTimeoutMs: number + /** How long after `cancel()` a still-unsettled script is abandoned (result force-settles `cancelled`). */ + disposeGraceMs: number } /** The engine-side observers the execution reports progress through. */ @@ -124,13 +123,24 @@ export class WorkflowExecution { private readonly controller = new AbortController() private currentPhase: string | undefined private readonly context: vm.Context - private readonly realmJsonParse: (text: string) => unknown - private readonly realmArrayFrom: (items: unknown[]) => unknown[] - private readonly realmPromiseResolve: (value: unknown) => Promise - private readonly realmErrorClone: (name: string, code: string | undefined, message: string, fatal: boolean) => unknown private readonly compiled: vm.Script /** Every live `agent()` call promise — awaited or stray — for {@link quiesce}. */ private readonly inFlightAgents = new Set>() + /** Fires {@link abandoned}; assigned by the promise executor at field initialization. */ + private declareAbandoned!: () => void + private abandonTimer: NodeJS.Timeout | undefined + /** + * Rejects `disposeGraceMs` after {@link cancel} if the script has not + * settled by then. `drive()` races the script against it, so `result` + * ALWAYS settles within the grace of a cancellation — even when the script + * is parked on a promise no hook owns (`await new Promise(() => {})`), which + * cancellation cannot reject. Without this, a consumer awaiting `result` + * before disposing (the tool's shape) would hang forever on such a script, + * wedging its caller past any abort. + */ + private readonly abandoned = new Promise((_, reject) => { + this.declareAbandoned = () => { reject(new WorkflowError('workflow script abandoned after the cancellation grace', 'CANCELLED')) } + }) constructor( private readonly ctx: Context, @@ -144,61 +154,34 @@ export class WorkflowExecution { ) { // Compile FIRST: a body syntax error must throw out of the constructor // (the engine maps it to SCRIPT_PARSE) before any realm state exists. - // The body is wrapped in a realm-side catch that pre-renders any thrown - // value to a string (see REALM_THROWN_RENDERER_SOURCE) — rendering happens - // inside the realm's own execution window, never on a host catch path. // lineOffset compensates for the wrapper line, so stack traces carry the // script's own line numbers (the meta statement was blanked, not removed). try { - this.compiled = new vm.Script( - `(async () => { try {\n${body}\n} catch (e) { throw (${REALM_THROWN_RENDERER_SOURCE})(e) } })()`, - { - filename: `workflow:${meta.name}`, - lineOffset: -1, - }, - ) + this.compiled = new vm.Script(`(async () => {\n${body}\n})()`, { + filename: `workflow:${meta.name}`, + lineOffset: -1, + }) } catch (error: unknown) { throw new WorkflowError(`workflow script does not parse: ${String(error)}`, 'SCRIPT_PARSE', { cause: error }) } this.context = vm.createContext({}, { name: `workflow:${meta.name}` }) vm.runInContext(DETERMINISM_PRELUDE, this.context) - // The realm's own JSON.parse — the host→realm rebuild channel. - const realmJson = vm.runInContext('JSON', this.context) as { parse(text: string): unknown } - this.realmJsonParse = (text: string) => realmJson.parse(text) - // The realm's own Array.from / Promise.resolve / an error factory, bound - // NOW so a script reassigning its globals later cannot swap them: - // combinator results must be realm arrays, hook promises realm promises, - // and hook failures realm-built clones. - this.realmArrayFrom = vm.runInContext('Array.from.bind(Array)', this.context) as (items: unknown[]) => unknown[] - this.realmPromiseResolve = vm.runInContext('Promise.resolve.bind(Promise)', this.context) as (value: unknown) => Promise - this.realmErrorClone = vm.runInContext(`(name, code, message, fatal) => { - const error = new Error(message) - error.name = name - if (code !== undefined) error.code = code - error.fatal = fatal - return error - }`, this.context) as (name: string, code: string | undefined, message: string, fatal: boolean) => unknown + // A run that settles without ever being abandoned leaves `abandoned` + // permanently pending or rejecting into the void — consume it so a late + // grace timer cannot surface an unhandled rejection. + void this.contain(this.abandoned) const globals: Record = { - agent: (prompt: unknown, opts?: unknown) => this.realmFacing(this.track(this.agent(prompt, opts))), - parallel: (thunks: unknown) => this.realmFacing(this.parallel(thunks)), - pipeline: (items: unknown, ...stages: unknown[]) => this.realmFacing(this.pipeline(items, stages)), - phase: (title: unknown) => { - try { - this.phase(title) - } catch (error: unknown) { - throw this.toRealmError(error) - } - }, - log: (message: unknown) => { - try { - this.log(message) - } catch (error: unknown) { - throw this.toRealmError(error) - } - }, - args: this.toRealm(args), + agent: (prompt: unknown, opts?: unknown) => this.contain(this.track(this.agent(prompt, opts))), + parallel: (thunks: unknown) => this.contain(this.parallel(thunks)), + pipeline: (items: unknown, ...stages: unknown[]) => this.contain(this.pipeline(items, stages)), + phase: (title: unknown) => { this.phase(title) }, + log: (message: unknown) => { this.log(message) }, + // Host-side clone: a script scribbling on args must not mutate the + // caller's object (a benign-bug guard; args is plain JSON by the seam + // contract, so structuredClone is total here and throws loud otherwise). + args: args === undefined ? undefined : structuredClone(args), } for (const [key, value] of Object.entries(globals)) { // Data properties on the contextified global; frozen shape not required — @@ -226,7 +209,10 @@ export class WorkflowExecution { /** * Cancel the run: children abort (the shared signal), waiting `agent()` * slots reject, and every future hook call throws `CANCELLED` — the script - * dies at its next await. Idempotent; the first reason wins. + * dies at its next await. A script that STILL has not settled after + * `disposeGraceMs` (parked on a promise no hook owns) is abandoned so + * `result` settles regardless (see {@link abandoned}). Idempotent; the + * first reason wins. */ cancel(reason?: string): void { if (this.cancelReason !== undefined) return @@ -234,14 +220,18 @@ export class WorkflowExecution { this.cancelError = new WorkflowError(`workflow run cancelled: ${this.cancelReason}`, 'CANCELLED') this.controller.abort(this.cancelReason) for (const waiter of this.slotWaiters.splice(0)) waiter.reject(this.cancelledError()) + this.abandonTimer = setTimeout(() => { this.declareAbandoned() }, this.limits.disposeGraceMs) + // unref'd: an armed grace timer must never hold the process open. + this.abandonTimer.unref() } /** * Run the script to settlement. Resolves — never rejects — with the run's * {@link WorkflowResult}: the materialized return value on `completed`, the * failure message on `error`, and `cancelled` when the script died of - * cancellation. After settlement, any stray children a script fired without - * awaiting are aborted (their `agent()` wrappers dispose them). + * cancellation (or outlived its post-cancel grace and was abandoned — see + * {@link abandoned}). After settlement, any stray children a script fired + * without awaiting are aborted (their `agent()` wrappers dispose them). */ async drive(): Promise { try { @@ -249,7 +239,9 @@ export class WorkflowExecution { // the script must not execute at all, let alone report `completed`. if (this.isCancelled()) throw this.cancelledError() const scriptPromise = this.compiled.runInContext(this.context, { timeout: this.limits.syncTimeoutMs }) as Promise - const raw: unknown = await this.contain(Promise.resolve(scriptPromise)) + // The race is the result-settles-after-cancel guarantee: a parked + // script loses to the abandon channel once the grace expires. + const raw: unknown = await Promise.race([this.contain(Promise.resolve(scriptPromise)), this.abandoned]) // Cancelled while the body ran: a script that settled without touching // another hook (or without any) must still report `cancelled` — the // holder asked for cancellation and `completed` would be a lie. @@ -258,25 +250,23 @@ export class WorkflowExecution { return { value, stopReason: 'completed', agentsStarted: this.started } } catch (error: unknown) { // Any failure after cancel() reports `cancelled` with the canonical - // reason — the reject path mirrors the resolve path's post-settle - // check, and a hook CANCELLED failure crosses the realm boundary as a - // clone that deliberately fails the host `instanceof`. + // reason — the reject path mirrors the resolve path's post-settle check. if (this.isCancelled()) { return { value: null, stopReason: 'cancelled', error: this.cancelledError().message, agentsStarted: this.started } } - // Ordinary script failures arrive pre-rendered by the realm-side catch - // (thrownRendering); host-thrown errors (a vm timeout, a WorkflowError) - // and adversarial values that bypassed the wrapper (e.g. a hostile - // thenable rejection) render via the total, host-code-only - // describeThrown. Neither path can throw — drive() resolving is the - // `result` never-rejects seam contract. - return { value: null, stopReason: 'error', error: thrownRendering(error) ?? describeThrown(error), agentsStarted: this.started } + // renderThrown is total (host- and realm-thrown values alike), so this + // arm cannot throw — drive() resolving is the `result` never-rejects + // seam contract. + return { value: null, stopReason: 'error', error: renderThrown(error), agentsStarted: this.started } } finally { // Reap strays: a script that fired agent() calls without awaiting them // leaves live children behind after settlement — abort them all. (The // per-call wrappers dispose each child; the contain() consumer keeps // their rejections from going unhandled.) if (this.cancelReason === undefined) this.cancel('workflow settled') + // drive() settling means nothing is left to abandon — including the + // timer the self-cancel above just armed. + if (this.abandonTimer !== undefined) clearTimeout(this.abandonTimer) } } @@ -291,37 +281,6 @@ export class WorkflowExecution { return promise } - /** - * Hand a hook's host promise to the script as a REALM promise (the realm's - * own `Promise.resolve` assimilates it) whose failure reason is a - * realm-built clone — the script must never hold host prototypes, and both - * the promise object and a caught rejection would otherwise expose them - * (module doc). The realm promise gets the same no-op rejection consumer as - * {@link contain}, since the script may drop it; the intermediate host - * promises are handled by the assimilation chain itself. - */ - private realmFacing(hostPromise: Promise): Promise { - const translated = hostPromise.catch((error: unknown) => { - throw this.toRealmError(error) - }) - const realmPromise = this.realmPromiseResolve(translated) - realmPromise.catch(() => { /* consumed: a script-dropped realm promise must not surface an unhandled rejection (see contain) */ }) - return realmPromise - } - - /** - * Rebuild a host failure as a realm-built error clone: a `WorkflowError` - * keeps its name/code/message/fatal (the combinators recognize the shape - * via {@link isFatalWorkflowErrorClone}); anything else becomes a generic - * realm `Error` carrying its {@link describeThrown} rendering. - */ - private toRealmError(error: unknown): unknown { - if (error instanceof WorkflowError) { - return this.realmErrorClone('WorkflowError', error.code, error.message, error.fatal) - } - return this.realmErrorClone('Error', undefined, describeThrown(error), false) - } - /** * Register one `agent()` call promise for {@link quiesce} tracking; the * entry drops when the call fully settles (which is AFTER its child's @@ -354,14 +313,6 @@ export class WorkflowExecution { return this.cancelError ?? new WorkflowError('workflow run cancelled', 'CANCELLED') } - /** Rebuild a host value inside the script realm (via the realm's own JSON.parse). */ - private toRealm(value: unknown): unknown { - if (value === undefined) return undefined - if (value === null) return null - if (typeof value === 'string' || typeof value === 'number' || typeof value === 'boolean') return value - return this.realmJsonParse(JSON.stringify(value)) - } - /** Materialize the script's return value; violations become RESULT_UNSERIALIZABLE. */ private materializeResult(raw: unknown): unknown { try { @@ -453,7 +404,7 @@ export class WorkflowExecution { return null } this.observer.agentEnd({ ...info, outcome: 'completed' }) - return this.toRealm(result.structured) + return result.structured } this.observer.agentEnd({ ...info, outcome: 'completed' }) return outputText(result.output) @@ -532,20 +483,17 @@ export class WorkflowExecution { } return thunk as () => unknown }) - const settled = await Promise.all(thunks.map(async (thunk) => { + return Promise.all(thunks.map(async (thunk) => { try { return await thunk() } catch (error: unknown) { - // Hooks translate host errors at the realm boundary, so a fatal error - // reaches a thunk catch only as a realm clone (a script forging the - // shape merely kills its own run). - if (isFatalWorkflowErrorClone(error)) throw error + // Hook failures are host WorkflowErrors; a fatal one is recognized by + // host `instanceof` — a script-built object can never pass it, so + // fatality cannot be forged (nor accidentally dissolved). + if (isFatalWorkflowError(error)) throw error return null } })) - // The container must be a REALM array (module doc); the elements are - // realm values already. - return this.realmArrayFrom(settled) } /** The `pipeline(items, ...stages)` hook: per-item stage chains, NO cross-stage barrier. */ @@ -563,7 +511,7 @@ export class WorkflowExecution { } return stage as (previous: unknown, item: unknown, index: number) => unknown }) - const settled = await Promise.all(rawItems.map(async (item: unknown, index) => { + return Promise.all(rawItems.map(async (item: unknown, index) => { let value: unknown = item try { for (const stage of stages) { @@ -572,15 +520,12 @@ export class WorkflowExecution { return value } catch (error: unknown) { // An ordinary stage throw drops the ITEM to null and skips its - // remaining stages; a fatal error (a realm clone — see parallel()) - // kills the whole script. - if (isFatalWorkflowErrorClone(error)) throw error + // remaining stages; a fatal host WorkflowError (see parallel()) kills + // the whole script. + if (isFatalWorkflowError(error)) throw error return null } })) - // The container must be a REALM array (module doc); the elements are - // realm values already. - return this.realmArrayFrom(settled) } private assertItemCap(length: number, hook: string): void { diff --git a/packages/workflow/workflow-vm/tests/meta.spec.ts b/packages/workflow/workflow-vm/tests/meta.spec.ts index a957b0ae05..02daa02940 100644 --- a/packages/workflow/workflow-vm/tests/meta.spec.ts +++ b/packages/workflow/workflow-vm/tests/meta.spec.ts @@ -103,29 +103,19 @@ return 2` }) it('rejects a literal evaluating to non-JSON data (META_INVALID via materialization)', () => { - const error = bad('export const meta = { name: "x", description: "d", phases: [{ get title() { return "t" } }] }') + const error = bad('export const meta = { name: "x", description: "d", whenToUse: () => 1 }') expect(error.code).toBe('META_INVALID') expect(error.message).toContain('JSON data') }) - it('rejects a meta literal containing a proxy as META_INVALID — its traps never run', () => { - // bad() rethrows anything that is not a WorkflowError, so a trap firing - // ('trap ran') would fail this test instead of mapping to META_INVALID. - const error = bad('export const meta = { name: "x", description: "d", phases: new Proxy([], { getPrototypeOf() { throw new Error("trap ran") } }) }') - expect(error.code).toBe('META_INVALID') - expect(error.message).toContain('proxies cannot cross') - }) - - it('a meta expression THROWING a hostile value maps to META_INVALID — rendering stays realm-side', () => { - // bad() rethrows anything that is not a WorkflowError, so a hostile value - // escaping the realm-side renderer raw would fail this test. - const error = bad('export const meta = { name: (() => { throw { get stack() { throw new Error("boom") }, toString() { throw new Error("boom") } } })(), description: "d" }\nreturn 1') + it('a meta expression that THROWS maps to META_INVALID carrying the rendered value', () => { + const error = bad('export const meta = { name: (() => { throw "nope" })(), description: "d" }\nreturn 1') expect(error.code).toBe('META_INVALID') expect(error.message).toContain('pure literal') - expect(error.message).toContain('[unrenderable thrown value]') + expect(error.message).toContain('nope') }) - it('a spinning meta expression (even inside a thrown stack getter) dies by the eval timeout', () => { + it('a spinning meta expression dies by the eval timeout', () => { try { extractMeta('export const meta = { name: (() => { while (true) {} })(), description: "d" }', 50) throw new Error('expected the extraction to time out') diff --git a/packages/workflow/workflow-vm/tests/realm.spec.ts b/packages/workflow/workflow-vm/tests/realm.spec.ts index c1bdeb33d6..769a19aa71 100644 --- a/packages/workflow/workflow-vm/tests/realm.spec.ts +++ b/packages/workflow/workflow-vm/tests/realm.spec.ts @@ -1,6 +1,6 @@ import { describe, expect, it } from 'vitest' import * as vm from 'node:vm' -import { materializeFromRealm, MaterializeError, describeThrown, thrownRendering } from '../src/realm.ts' +import { materializeFromRealm, MaterializeError, renderThrown } from '../src/realm.ts' /** Evaluate an expression inside a fresh vm realm and hand back the raw realm value. */ function inRealm(expression: string): unknown { @@ -35,17 +35,21 @@ describe('materializeFromRealm', () => { expect(rejection(inRealm('{ a: undefined }'))).toContain('value.a') }) - it('never invokes accessors: a counting getter is rejected, not read', () => { + it('invokes getters ordinarily — the getter RESULT is what crosses (trust premise)', () => { const counter = inRealm(` (() => { globalThis.reads = 0 - return { get x() { globalThis.reads += 1; return 1 } } + return { get x() { globalThis.reads += 1; return globalThis.reads } } })() `) - expect(rejection(counter)).toContain('accessor properties cannot cross') - // The getter body never ran — descriptor inspection only. - expect((counter as { x?: unknown }).x).toBe(1) // sanity: reading DOES run it… - expect(rejection(counter)).toContain('accessor') // …but materialization still never did + expect(materializeFromRealm(counter)).toEqual({ x: 1 }) + }) + + it('a getter that THROWS surfaces as a MaterializeError carrying the rendered failure', () => { + const hostile = inRealm("{ get x() { throw new Error('read failed') } }") + const message = rejection(hostile) + expect(message).toContain('reading the value threw') + expect(message).toContain('read failed') }) it('a "__proto__" key becomes an OWN data property of the copy, never a prototype mutation', () => { @@ -81,39 +85,18 @@ describe('materializeFromRealm', () => { expect(materializeFromRealm(inRealm('Object.assign(Object.create(null), { a: 1 })'))).toEqual({ a: 1 }) }) - it('rejects proxies (root, nested, revoked, host-realm) WITHOUT running any trap', () => { - const trapped = inRealm(`new Proxy({ a: 1 }, { - ownKeys() { throw new Error('trap ran') }, - getOwnPropertyDescriptor() { throw new Error('trap ran') }, - getPrototypeOf() { throw new Error('trap ran') }, - })`) - // A trap firing would surface 'trap ran' (a non-MaterializeError) instead. - expect(rejection(trapped)).toContain('proxies cannot cross') - expect(rejection(inRealm('{ nested: new Proxy([], {}) }'))).toContain('value.nested') - const revoked = inRealm('(() => { const r = Proxy.revocable({}, {}); r.revoke(); return r.proxy })()') - expect(rejection(revoked)).toContain('proxies cannot cross') - expect(rejection(new Proxy({}, {}))).toContain('proxies cannot cross') - }) - - it('rejects an object whose PROTOTYPE is a proxy without dereferencing through it', () => { - const value = inRealm(`Object.create(new Proxy({}, { - getPrototypeOf() { throw new Error('trap ran') }, - }))`) - expect(rejection(value)).toContain('exotic prototype') - }) - it('rejects cycles and accepts the same object reused as a sibling (a DAG)', () => { expect(rejection(inRealm('(() => { const o = {}; o.self = o; return o })()'))).toContain('circular') const dag = inRealm('(() => { const leaf = { v: 1 }; return { a: leaf, b: leaf } })()') expect(materializeFromRealm(dag)).toEqual({ a: { v: 1 }, b: { v: 1 } }) }) - it('rejects sparse arrays, accessor elements, and non-index array properties', () => { + it('rejects sparse arrays and non-index array properties; an array getter element materializes its value', () => { expect(rejection(inRealm('[1, , 3]'))).toContain('sparse') - expect(rejection(inRealm('(() => { const a = [1]; Object.defineProperty(a, 0, { get: () => 1 }); return a })()'))) - .toContain('accessor') expect(rejection(inRealm('(() => { const a = [1]; a.total = 3; return a })()'))) .toContain('non-index') + expect(materializeFromRealm(inRealm('(() => { const a = [1]; Object.defineProperty(a, 0, { get: () => 7, enumerable: true }); return a })()'))) + .toEqual([7]) }) it('skips non-enumerable own properties (matching JSON.stringify exactly)', () => { @@ -134,45 +117,29 @@ describe('materializeFromRealm', () => { }) }) -describe('describeThrown (host-side thrown-value rendering)', () => { - it('renders a HOST Error via its identity-verified native stack getter', () => { - const error = new Error('host failure') - const rendered = describeThrown(error) - expect(rendered).toContain('host failure') - expect(rendered).toContain('at ') // a real stack, not just the message - }) - - it('never invokes a REALM error stack getter (identity mismatch) — message renders instead', () => { +describe('renderThrown', () => { + it('prefers the stack, for host and realm errors alike', () => { + const host = renderThrown(new Error('host failure')) + expect(host).toContain('host failure') + expect(host).toContain('at ') // a real stack, not just the message const realmError: unknown = vm.runInNewContext('(() => { try { throw new Error("realm failure") } catch (e) { return e } })()') - expect(describeThrown(realmError)).toBe('realm failure') + expect(renderThrown(realmError)).toContain('realm failure') }) - it('reads a data-property stack directly and falls through a setter-only accessor', () => { - expect(describeThrown({ stack: 'data stack' })).toBe('data stack') - const setterOnly = { message: 'via message' } - Object.defineProperty(setterOnly, 'stack', { set() { /* swallow */ } }) - expect(describeThrown(setterOnly)).toBe('via message') + it('falls back from stack to message to String()', () => { + expect(renderThrown({ stack: 'custom data stack' })).toBe('custom data stack') + const stackless = new Error('stackless failure') + delete stackless.stack + expect(renderThrown(stackless)).toBe('stackless failure') + expect(renderThrown({ code: 42 })).toBe('[object Object]') + expect(renderThrown('plain')).toBe('plain') + expect(renderThrown(42)).toBe('42') + expect(renderThrown(undefined)).toBe('undefined') + expect(renderThrown(null)).toBe('null') }) - it('labels proxies and functions without touching them; primitives stringify', () => { - expect(describeThrown(new Proxy({}, { getOwnPropertyDescriptor() { throw new Error('trap ran') } }))).toBe('[thrown proxy]') - expect(describeThrown(() => 1)).toBe('[thrown function]') - expect(describeThrown('plain')).toBe('plain') - expect(describeThrown(42)).toBe('42') - expect(describeThrown(undefined)).toBe('undefined') - expect(describeThrown(null)).toBe('null') - expect(describeThrown({ code: 42 })).toBe('[object Object]') - }) -}) - -describe('thrownRendering (the realm-catch wrapper reader)', () => { - it('extracts the pre-rendered string from a wrapper and nothing else', () => { - expect(thrownRendering({ __wfThrown: 'rendered text' })).toBe('rendered text') - expect(thrownRendering({ __wfThrown: 42 })).toBeUndefined() - expect(thrownRendering({ other: 'x' })).toBeUndefined() - expect(thrownRendering(new Error('plain'))).toBeUndefined() - expect(thrownRendering('string')).toBeUndefined() - expect(thrownRendering(null)).toBeUndefined() - expect(thrownRendering(new Proxy({ __wfThrown: 'forged' }, { getOwnPropertyDescriptor() { throw new Error('trap ran') } }))).toBeUndefined() + it('is total: a value whose accessors/toString throw renders as a fixed label', () => { + expect(renderThrown({ get stack() { throw new Error('nope') } })).toBe('[unrenderable thrown value]') + expect(renderThrown({ [Symbol.toPrimitive]() { throw new Error('nope') } })).toBe('[unrenderable thrown value]') }) }) diff --git a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts index d87d571295..e362ed6ef0 100644 --- a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts +++ b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts @@ -289,22 +289,13 @@ describe('dsh-workflow-vm', () => { () => agent('fine'), () => 'plain value', () => { throw 'string throw' }, - () => { throw new Proxy({ name: 'WorkflowError', fatal: true }, {}) }, - () => { throw { name: 'WorkflowError', fatal: 'forged-but-not-true' } }, + () => { throw { name: 'WorkflowError', fatal: true, message: 'forged fatal' } }, ]) `)) - // The last three probe the fatal-clone recognition: a non-object, a - // proxy (never inspected), and a shape miss are all ordinary nulls. - expect(result.value).toEqual([null, 'stub reply', 'plain value', null, null, null]) - }) - - it('a script forging a fatal clone kills only its own run (self-sabotage, not a bypass)', async () => { - const { ctx, parent } = await setup() - const result = await run(ctx, parent, script(` - return await parallel([() => { throw { name: 'WorkflowError', fatal: true, message: 'forged fatal' } }]) - `)) - expect(result.stopReason).toBe('error') - expect(result.error).toContain('forged fatal') + // The last entry probes fatality: it is recognized by host instanceof, + // which a script-built object can never pass — a WorkflowError-SHAPED + // throw is an ordinary null, and real fatality cannot be forged. + expect(result.value).toEqual([null, 'stub reply', 'plain value', null, null]) }) it('FATAL errors propagate through parallel AND pipeline instead of dissolving into null', async () => { @@ -386,11 +377,12 @@ describe('dsh-workflow-vm', () => { expect((await run(ctx, parent, script("return await agent('p', { effort: 'high' })"))).error).toContain('"effort" is deferred') }) - it('rejects options that are not plain JSON data (an accessor smuggled into opts)', async () => { + it('rejects options whose property reads throw (materialization is loud, not silent)', async () => { const { ctx, parent } = await setup() - const result = await run(ctx, parent, script("return await agent('p', { get label() { return 'x' } })")) + const result = await run(ctx, parent, script("return await agent('p', { get label() { throw new Error('read failed') } })")) expect(result.stopReason).toBe('error') expect(result.error).toContain('options must be plain JSON data') + expect(result.error).toContain('read failed') }) it('validates phase() and log() arguments loudly', async () => { @@ -416,7 +408,7 @@ describe('dsh-workflow-vm', () => { }) }) - describe('determinism bans and realm isolation', () => { + describe('determinism bans and the value boundary', () => { it('Date.now, Math.random, and argless new Date throw; parameterized Date stays usable', async () => { const { ctx, parent } = await setup() expect((await run(ctx, parent, script('return Date.now()'))).error).toContain('Date.now() is not available') @@ -426,18 +418,16 @@ describe('dsh-workflow-vm', () => { expect(ok.value).toBe(0) }) - it('args cross into the realm as data: mutating them (or their prototype chain) cannot reach host intrinsics', async () => { + it('args are cloned at start: a script scribbling on them cannot mutate the caller\'s object', async () => { const { ctx, parent } = await setup() const hostArgs = { files: ['a.ts'], nested: { deep: [1, 2] } } const result = await run(ctx, parent, script(` args.files.push('b.ts') - Object.getPrototypeOf(args).polluted = 'realm-only' return { count: args.files.length, deep: args.nested.deep[1] } `), hostArgs) expect(result.value).toEqual({ count: 2, deep: 2 }) - // The host copy is untouched, and the HOST Object.prototype was never reachable. + // The caller's object is untouched (the engine cloned args host-side). expect(hostArgs.files).toEqual(['a.ts']) - expect(({} as Record).polluted).toBeUndefined() }) it('scalar/null args pass through directly; absent args leave the global undefined', async () => { @@ -447,51 +437,24 @@ describe('dsh-workflow-vm', () => { expect((await run(ctx, parent, script('return typeof args'))).value).toBe('undefined') }) - it('hook promises are REALM promises: instanceof holds in-script, host Promise.prototype stays unreachable', async () => { - const { ctx, parent } = await setup() - const result = await run(ctx, parent, script(` - const p = agent('x') - const par = parallel([() => 'v']) - const pipe = pipeline([1], (n) => n) - Object.getPrototypeOf(p).wfLeakProbe = 'realm-only' - return { - agentIsRealmPromise: p instanceof Promise, - parallelIsRealmPromise: par instanceof Promise, - pipelineIsRealmPromise: pipe instanceof Promise, - value: await p, - } - `)) - expect(result.stopReason).toBe('completed') - expect(result.value).toEqual({ - agentIsRealmPromise: true, - parallelIsRealmPromise: true, - pipelineIsRealmPromise: true, - value: 'stub reply', - }) - expect((Promise.prototype as unknown as Record).wfLeakProbe).toBeUndefined() - delete (Promise.prototype as unknown as Record).wfLeakProbe - }) - - it('hook failures cross the boundary as realm-built WorkflowError clones', async () => { + it('hook failures reach the script as HOST WorkflowErrors: fields readable, in-realm instanceof Error is false', async () => { const { ctx, parent } = await setup() const result = await run(ctx, parent, script(` try { await agent('p', { bogus: true }) return 'unreachable' } catch (e) { - Object.getPrototypeOf(Object.getPrototypeOf(e)).wfErrLeakProbe = 'realm-only' + // The documented consequence of the trust premise: hook errors are + // host objects, so realm instanceof is false — read the fields. return { isRealmError: e instanceof Error, name: e.name, code: e.code, fatal: e.fatal, message: e.message } } `)) expect(result.stopReason).toBe('completed') - expect(result.value).toMatchObject({ isRealmError: true, name: 'WorkflowError', code: 'UNSUPPORTED_OPTION', fatal: true }) + expect(result.value).toMatchObject({ isRealmError: false, name: 'WorkflowError', code: 'UNSUPPORTED_OPTION', fatal: true }) expect((result.value as { message: string }).message).toContain('"bogus" is not recognized') - // The script mutated its error's prototype CHAIN — host intrinsics untouched. - expect((Object.prototype as unknown as Record).wfErrLeakProbe).toBeUndefined() - expect((Error.prototype as unknown as Record).wfErrLeakProbe).toBeUndefined() }) - it('a non-WorkflowError host failure (a rejecting provider result) crosses as a generic realm clone', async () => { + it('a non-WorkflowError host failure (a rejecting provider result) reaches the script raw', async () => { const ctx = new Context() await ctx.plugin(SubagentService) const provider: SubagentProvider = { @@ -507,68 +470,34 @@ describe('dsh-workflow-vm', () => { ctx.subagents.registerProvider(provider) await ctx.plugin(VmWorkflowEngine, { provider: 'rejecting' }) const result = await run(ctx, fakeParent(), script(` - try { await agent('p'); return 'unreachable' } catch (e) { return { isRealmError: e instanceof Error, name: e.name, message: e.message } } + try { await agent('p'); return 'unreachable' } catch (e) { return { name: e.name, message: e.message } } `)) - expect(result.value).toMatchObject({ isRealmError: true, name: 'Error' }) + expect(result.value).toMatchObject({ name: 'Error' }) expect((result.value as { message: string }).message).toContain('backend exploded') }) - it('phase()/log() synchronous throws cross as realm clones too', async () => { + it('phase()/log() throw host WorkflowErrors synchronously on misuse', async () => { const { ctx, parent } = await setup() const result = await run(ctx, parent, script(` try { phase(3) } catch (e) { - if (!(e instanceof Error) || e.name !== 'WorkflowError') throw e + if (e.name !== 'WorkflowError') throw e } try { log(3) } catch (e) { - return { isRealmError: e instanceof Error, name: e.name, message: e.message } + return { name: e.name, message: e.message } } `)) - expect(result.value).toMatchObject({ isRealmError: true, name: 'WorkflowError' }) + expect(result.value).toMatchObject({ name: 'WorkflowError' }) expect((result.value as { message: string }).message).toContain('log() requires') }) - it('parallel/pipeline resolve to REALM arrays: instanceof holds in-script, host intrinsics stay unreachable', async () => { + it('a returned value whose property reads throw fails loud as RESULT_UNSERIALIZABLE', async () => { const { ctx, parent } = await setup() const result = await run(ctx, parent, script(` - const fromParallel = await parallel([() => agent('a'), () => 'plain']) - const fromPipeline = await pipeline([1], (prev) => prev + 1) - Object.getPrototypeOf(fromParallel).polluted = 'realm-only' - return { - parallelIsRealmArray: fromParallel instanceof Array, - pipelineIsRealmArray: fromPipeline instanceof Array, - values: [fromParallel[1], fromPipeline[0]], - } - `)) - expect(result.stopReason).toBe('completed') - expect(result.value).toEqual({ - parallelIsRealmArray: true, - pipelineIsRealmArray: true, - values: ['plain', 2], - }) - // The script's prototype mutation stayed realm-side: the HOST - // Array.prototype was never reachable through a combinator result. - expect(([] as unknown as Record).polluted).toBeUndefined() - }) - - it('a returned proxy is rejected as RESULT_UNSERIALIZABLE without running its traps', async () => { - const { ctx, parent } = await setup() - const result = await run(ctx, parent, script(` - return new Proxy({ a: 1 }, { ownKeys() { throw new Error('trap ran') } }) + return { get a() { throw new Error('read failed') } } `)) expect(result.stopReason).toBe('error') expect(result.error).toContain('not plain JSON data') - expect(result.error).toContain('proxies cannot cross') - expect(result.error).not.toContain('trap ran') - }) - - it('agent() options passed as a proxy are rejected loudly, traps never invoked', async () => { - const { ctx, parent } = await setup() - const result = await run(ctx, parent, script(` - return await agent('p', new Proxy({}, { ownKeys() { throw new Error('trap ran') } })) - `)) - expect(result.stopReason).toBe('error') - expect(result.error).toContain('options must be plain JSON data') - expect(result.error).not.toContain('trap ran') + expect(result.error).toContain('read failed') }) it('a non-JSON return value fails loud as RESULT_UNSERIALIZABLE', async () => { @@ -696,60 +625,6 @@ describe('dsh-workflow-vm', () => { expect(result.error).toBe('[object Object]') }) - it('hostile thrown values render realm-side: result NEVER rejects, no unhandled rejection', async () => { - const unhandled: unknown[] = [] - const onUnhandled = (reason: unknown): void => { unhandled.push(reason) } - process.on('unhandledRejection', onUnhandled) - try { - const { ctx, parent } = await setup() - // Each thrown value runs code (or throws) when rendered — the realm - // wrapper renders it INSIDE script execution, and the host catch only - // ever descriptor-reads the pre-rendered string. - const cases: [string, string][] = [ - ["throw { get stack() { throw new Error('stack getter threw') } }", '[object Object]'], - ["throw { get stack() { throw new Error('x') }, message: 'getter threw, message renders' }", 'getter threw, message renders'], - ["throw { get message() { throw new Error('message getter threw') } }", '[object Object]'], - ["throw { stack: 'custom data stack' }", 'custom data stack'], - ["throw (() => { const o = { message: 'setter-only stack' }; Object.defineProperty(o, 'stack', { set() {} }); return o })()", 'setter-only stack'], - ["throw new Proxy({}, { getOwnPropertyDescriptor() { throw new Error('gopd trap threw') } })", '[object Object]'], - ["throw { [Symbol.toPrimitive]() { throw new Error('toPrimitive threw') } }", '[unrenderable thrown value]'], - ['throw () => 1', '() => 1'], - ['throw null', 'null'], - ] - for (const [body, rendered] of cases) { - const result = await run(ctx, parent, script(body)) - expect(result.stopReason).toBe('error') - expect(result.error).toBe(rendered) - } - // Let any stray rejection reach the process hook before asserting. - await new Promise(resolve => setTimeout(resolve, 20)) - expect(unhandled).toEqual([]) - } finally { - process.off('unhandledRejection', onUnhandled) - } - }) - - it('a synchronous spin hidden in a thrown stack getter dies by the vm timeout, not on the host', async () => { - const { ctx, parent } = await setup({ config: { provider: 'stub', syncTimeoutMs: 50 } }) - // The realm-side renderer reads e.stack INSIDE the timed sync slice, so - // the spin is killed exactly like a plain `while (true) {}` body. - const result = await run(ctx, parent, script('throw { get stack() { while (true) {} } }')) - expect(result.stopReason).toBe('error') - expect(result.error?.toLowerCase()).toContain('timed out') - }) - - it('a hostile thenable rejection that bypasses the realm wrapper renders host-side, data-only', async () => { - const { ctx, parent } = await setup() - // Returning a thenable makes the host unwrap it AFTER the script - // settled — its rejection value skips the realm catch entirely and hits - // drive()'s catch raw. The proxy must be labelled, its traps never run. - const result = await run(ctx, parent, script(` - return { then(_resolve, reject) { reject(new Proxy({}, { getOwnPropertyDescriptor() { throw new Error('trap ran') } })) } } - `)) - expect(result.stopReason).toBe('error') - expect(result.error).toBe('[thrown proxy]') - }) - it('falls back to the message for an Error whose stack was stripped', async () => { const { ctx, parent } = await setup() const result = await run(ctx, parent, script(` @@ -803,18 +678,43 @@ describe('dsh-workflow-vm', () => { } }) - it('dispose() abandons a stuck script after the grace instead of hanging (result stays pending)', async () => { + it('cancel() force-settles the result of a script parked on a promise no hook owns', async () => { + const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: 30 } }) + const handle = ctx.workflows.start({ + // No hooks involved: an unsettleable await cancellation cannot reject + // — the abandon grace is the only thing that can settle this run. + script: script("await new Promise(() => {})\nreturn 'unreachable'"), + parent, + }) + handle.cancel('user aborted') + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + expect(result.error).toContain('user aborted') + await handle.dispose() + }) + + it('a never-settling returned thenable is abandoned the same way', async () => { + const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: 30 } }) + const handle = ctx.workflows.start({ script: script('return { then() {} }'), parent }) + handle.cancel() + expect((await handle.result).stopReason).toBe('cancelled') + await handle.dispose() + }) + + it('dispose() abandons a stuck script after the grace instead of hanging (result settles cancelled)', async () => { const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: 30 } }) const handle = ctx.workflows.start({ - // No hooks involved: an unsettleable await the engine cannot reject. script: script("await new Promise(() => {})\nreturn 'unreachable'"), parent, }) const before = Date.now() await handle.dispose() expect(Date.now() - before).toBeLessThan(1000) - const settled = await Promise.race([handle.result.then(() => 'settled'), Promise.resolve('pending')]) - expect(settled).toBe('pending') + // The abandon that freed dispose() also settled result — a consumer + // still awaiting it (the tool does, before its disposing finally) is + // released rather than wedged forever. + const result = await handle.result + expect(result.stopReason).toBe('cancelled') }) it('dispose() is idempotent and settles cleanly after a completed run', async () => { diff --git a/packages/workflow/workflow/README.md b/packages/workflow/workflow/README.md index 46efa2f2d0..076f5443ac 100644 --- a/packages/workflow/workflow/README.md +++ b/packages/workflow/workflow/README.md @@ -4,7 +4,7 @@ The **workflow seam** (`ctx.workflows`): an abstract service defining WHAT a wor ## Service: `WorkflowService` (abstract) -`start(request: WorkflowStartRequest): WorkflowRun` — parse and execute a script. Throws synchronously (`SCRIPT_PARSE`/`META_INVALID`) for a script that cannot begin; once a run is returned, its `result` NEVER rejects — every failure resolves with `stopReason: 'error'` (or `'cancelled'`). `dispose()` must reach quiescence within a bounded grace (cancel → wait for the script to settle and its children to finish disposing → abandon), never hanging its caller. +`start(request: WorkflowStartRequest): WorkflowRun` — parse and execute a script. Throws synchronously (`SCRIPT_PARSE`/`META_INVALID`) for a script that cannot begin; once a run is returned, its `result` NEVER rejects — every failure resolves with `stopReason: 'error'` (or `'cancelled'`) — and once the run is cancelled, `result` settles within the implementation's bounded grace even if the script itself never settles (a consumer awaiting `result` must never be wedged past a cancellation). `dispose()` must reach quiescence within a bounded grace (cancel → wait for the script to settle and its children to finish disposing → abandon), never hanging its caller. The protected `emitWorkflowEvent` helper dispatches the `workflow/*` events with PER-LISTENER containment and PER-LISTENER payload snapshots (a throwing subscriber is logged, never propagated, and cannot starve later listeners; each subscriber gets its own clone of the payload, so mutating it corrupts neither the engine nor other listeners) — the same containment guarantee as the subagent seam's lifecycle emits. diff --git a/packages/workflow/workflow/src/index.ts b/packages/workflow/workflow/src/index.ts index 5f340e2f93..83b1560563 100644 --- a/packages/workflow/workflow/src/index.ts +++ b/packages/workflow/workflow/src/index.ts @@ -127,8 +127,8 @@ export type WorkflowEventName = * subset (see dsh-tools). * - `AGENT_CAP` / `ITEM_CAP` — the run/agent caps tripped. * - `AGENT_START` — the subagent seam refused to start a child. - * - `RESULT_UNSERIALIZABLE` — a value crossing the realm boundary is not - * plain JSON data. + * - `RESULT_UNSERIALIZABLE` — a value crossing the script/host value boundary + * is not plain JSON data. * - `CANCELLED` — the run was cancelled; pending and future hooks reject * with this (the script-kill mechanism). */ @@ -179,7 +179,10 @@ export function isFatalWorkflowError(error: unknown): boolean { * - {@link start} throws synchronously for a request that cannot begin (an * unparseable script, an invalid meta block). Once it returns a * {@link WorkflowRun}, `result` NEVER rejects — every failure resolves with - * `stopReason: 'error'` (or `'cancelled'`). + * `stopReason: 'error'` (or `'cancelled'`) — and once the run is cancelled, + * `result` SETTLES within the implementation's bounded grace even if the + * script itself never settles (a consumer awaiting `result` must never be + * wedged past a cancellation). * - The `workflow/*` events fire through {@link emitWorkflowEvent} (data * snapshots, per-listener containment); `workflow/end` fires exactly once * per started run, after `result` is settled or as it settles. diff --git a/packages/workflow/workflow/src/types.ts b/packages/workflow/workflow/src/types.ts index 32377ee46b..01e5d08bf0 100644 --- a/packages/workflow/workflow/src/types.ts +++ b/packages/workflow/workflow/src/types.ts @@ -85,7 +85,7 @@ export interface WorkflowResult { stopReason: WorkflowStopReason /** The failure message (present iff `stopReason` is not `completed`). */ error?: string - /** How many `agent()` calls the run started (across its whole lifetime). */ + /** How many `agent()` calls the run accepted (whole lifetime, including calls still queued for a slot when the run was cancelled). */ agentsStarted: number } @@ -93,17 +93,19 @@ export interface WorkflowResult { * The handle the consumer holds while a script executes. The consumer awaits * `result`, may `cancel` mid-flight, and MUST `dispose` on every path. * `result` does NOT reject — a script failure resolves with `stopReason: - * 'error'` — so the consumer maps a non-`completed` reason to an `isError` - * result. `dispose()` cancels, then waits a bounded grace for the script to - * settle before abandoning it (the engine documents the abandonment - * semantics); it never hangs on a stuck script. + * 'error'` — and once the run is cancelled it SETTLES within the engine's + * bounded grace even if the script itself never settles (the engine abandons + * the script and reports `cancelled`), so a consumer awaiting `result` is + * never wedged past a cancellation. `dispose()` = cancel + that bounded + * settle + child quiescence; it never hangs on a stuck script and is safe to + * call on every path (idempotent). */ export interface WorkflowRun { readonly id: WorkflowRunId /** The validated meta block (available before the body runs). */ readonly meta: WorkflowMeta readonly result: Promise - /** Cancel the run: children abort, pending hooks reject, the script dies at its next await. */ + /** Cancel the run: children abort, pending hooks reject, the script dies at its next await (or is abandoned at the grace). */ cancel(reason?: string): void /** Cancel + bounded-grace settle; safe to call on every path (idempotent). */ dispose(): Promise @@ -149,6 +151,6 @@ export interface WorkflowResultInfo { stopReason: WorkflowStopReason /** The failure message (present iff `stopReason` is not `completed`). */ error?: string - /** How many `agent()` calls the run started. */ + /** How many `agent()` calls the run accepted (see {@link WorkflowResult.agentsStarted}). */ agentsStarted: number } diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 7877dc9fad..093e982930 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -1060,6 +1060,9 @@ importers: '@deepseek-ai/dsh-session': specifier: workspace:^ version: link:../../core/session + '@deepseek-ai/dsh-subagent': + specifier: workspace:^ + version: link:../../subagent/subagent '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../../core/system-prompt @@ -1069,6 +1072,9 @@ importers: '@deepseek-ai/dsh-workflow': specifier: workspace:^ version: link:../workflow + '@deepseek-ai/dsh-workflow-vm': + specifier: workspace:^ + version: link:../workflow-vm cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) From ed3972a9c6dad73404100e204fcc191957503341 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 6 Jul 2026 00:51:04 +0800 Subject: [PATCH 021/232] workflow: linear meta-prefix scan (the regex backtracked exponentially) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Review finding, measured: the leading-trivia prefix regex (`^\s*(?:comment|comment|\s+)*export …`) partitions a whitespace run ambiguously between its outer `\s*` and the starred `\s+` alternative, so a script that ultimately FAILS the match backtracks exponentially — ~19 ms at 35 leading whitespace characters, ~174 ms at 38, ×2.2 per character; a realistic near-miss (a comment header, blank indented lines, then `const meta` missing its `export`) did not finish in 10 seconds. The regex ran on the HOST stack inside the synchronous `start()`, where no vm timeout applies and no abort can interleave — a benign one-token typo, exactly what SCRIPT_PARSE exists to bounce back to the model, hung the whole process instead of reaching that designed recovery. Replaced with a hand-rolled linear trivia scan (whitespace + `//` and `/* */` comments — the module already scans characters for the literal) followed by an anchored `^export\s+const\s+meta\s*=\s*` on the remainder, whose quantifiers cannot backtrack ambiguously. An unterminated block comment before the statement now gets its own SCRIPT_PARSE message. Regressions: the near-miss shape must reject in under a second (the old regex would trip the suite timeout), plus the unterminated-leading-comment and comment-to-EOF edges. --- packages/workflow/workflow-vm/src/meta.ts | 45 +++++++++++++++++-- .../workflow/workflow-vm/tests/meta.spec.ts | 21 +++++++++ 2 files changed, 62 insertions(+), 4 deletions(-) diff --git a/packages/workflow/workflow-vm/src/meta.ts b/packages/workflow/workflow-vm/src/meta.ts index cfe3e4d381..75958ba6f1 100644 --- a/packages/workflow/workflow-vm/src/meta.ts +++ b/packages/workflow/workflow-vm/src/meta.ts @@ -29,8 +29,6 @@ export interface ExtractedScript { body: string } -const META_PREFIX = /^\s*(?:\/\/[^\n]*\n|\/\*[\s\S]*?\*\/\s*|\s+)*export\s+const\s+meta\s*=\s*/ - /** * Scan `source` from `start` (an opening `{`) to its matching `}`, aware of * string literals (`'`/`"`/backtick, with escapes) and comments. Returns the @@ -145,6 +143,44 @@ function validateMetaShape(meta: unknown): { meta?: WorkflowMeta; violations: st } } +/** `export const meta =`, anchored AFTER {@link skipLeadingTrivia} — its quantifiers cannot backtrack ambiguously. */ +const META_HEAD = /^export\s+const\s+meta\s*=\s*/ + +/** + * Index just past the leading trivia: whitespace and `//` / `/*`-style + * comments. A hand-rolled character scan, NOT a prefix regex — an + * all-alternation prefix (`\s*(?:comment|\s+)*`) partitions a whitespace run + * ambiguously and backtracks EXPONENTIALLY when the match ultimately fails, + * so a near-miss script (a comment header, then a forgotten `export`) would + * spin the host synchronously inside `start()`, where no vm timeout applies. + * The near-miss must fail fast into `SCRIPT_PARSE` instead — that error is + * the model's retry signal. + */ +function skipLeadingTrivia(source: string): number { + let index = 0 + while (index < source.length) { + const ch = source.charAt(index) + if (/\s/.test(ch)) { + index += 1 + continue + } + if (ch === '/' && source[index + 1] === '/') { + const end = source.indexOf('\n', index) + if (end === -1) return source.length + index = end + 1 + continue + } + if (ch === '/' && source[index + 1] === '*') { + const end = source.indexOf('*/', index + 2) + if (end === -1) throw new WorkflowError('script has an unterminated comment before the meta block', 'SCRIPT_PARSE') + index = end + 2 + continue + } + break + } + return index +} + /** * Extract and validate the leading `export const meta = {...}` statement. * Throws {@link WorkflowError} — `SCRIPT_PARSE` when the statement is missing @@ -155,11 +191,12 @@ function validateMetaShape(meta: unknown): { meta?: WorkflowMeta; violations: st * @returns the validated meta and the line-preservingly blanked body. */ export function extractMeta(script: string, evalTimeoutMs: number): ExtractedScript { - const match = META_PREFIX.exec(script) + const triviaEnd = skipLeadingTrivia(script) + const match = META_HEAD.exec(script.slice(triviaEnd)) if (!match) { throw new WorkflowError('script must begin with `export const meta = {...}` (leading comments allowed)', 'SCRIPT_PARSE') } - const literalStart = match[0].length + const literalStart = triviaEnd + match[0].length if (script[literalStart] !== '{') { throw new WorkflowError('`export const meta =` must be followed by an object literal', 'SCRIPT_PARSE') } diff --git a/packages/workflow/workflow-vm/tests/meta.spec.ts b/packages/workflow/workflow-vm/tests/meta.spec.ts index 02daa02940..a1c622e3fc 100644 --- a/packages/workflow/workflow-vm/tests/meta.spec.ts +++ b/packages/workflow/workflow-vm/tests/meta.spec.ts @@ -81,6 +81,27 @@ return 2` expect(bad('export const meta = [1]').code).toBe('SCRIPT_PARSE') }) + it('a near-miss prefix (comment header + whitespace, then no `export`) fails FAST as SCRIPT_PARSE', () => { + // Regression: the previous all-alternation prefix regex backtracked + // exponentially on exactly this shape (~×2 per extra whitespace char once + // the match fails), spinning the host synchronously inside start(). The + // linear trivia scan must reject it in effectively zero time. + const nearMiss = `// deep-audit workflow: reviews every route handler\n${' \n'.repeat(40)}/* second header block */\n${' '.repeat(200)}\nconst meta = { name: 'x', description: 'y' }\n` + const started = Date.now() + expect(bad(nearMiss).code).toBe('SCRIPT_PARSE') + expect(Date.now() - started).toBeLessThan(1000) + }) + + it('an unterminated block comment BEFORE the meta statement is SCRIPT_PARSE', () => { + const error = bad('/* never closed\nexport const meta = { name: "x", description: "y" }') + expect(error.code).toBe('SCRIPT_PARSE') + expect(error.message).toContain('unterminated comment') + }) + + it('a line comment running to EOF leaves no meta statement (SCRIPT_PARSE)', () => { + expect(bad('// only a comment, no newline').code).toBe('SCRIPT_PARSE') + }) + it('rejects template interpolation in the meta block as impure (SCRIPT_PARSE)', () => { const error = bad('export const meta = { name: `w-${1}`, description: "d" }\nreturn 1') expect(error.code).toBe('SCRIPT_PARSE') From 8cb5e1554400fd1103ec900cb9531bc339e09266 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 6 Jul 2026 00:53:17 +0800 Subject: [PATCH 022/232] chore: undo the knip.json reformat noise MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Review nit: the feature commit exploded every single-line array in knip.json to multi-line, burying the one semantic change (the workflow-vm workspace entry) under ~110 lines of mechanical reformat. Restore the file to master's formatting with only that entry added — the diff against master is now the 4 lines that mean something. --- knip.json | 165 ++++++++++++++---------------------------------------- 1 file changed, 41 insertions(+), 124 deletions(-) diff --git a/knip.json b/knip.json index 39fb4c414f..938164d37d 100644 --- a/knip.json +++ b/knip.json @@ -1,11 +1,7 @@ { "$schema": "https://unpkg.com/knip@5/schema.json", - "exclude": [ - "duplicates" - ], - "ignoreWorkspaces": [ - "vendor/*" - ], + "exclude": ["duplicates"], + "ignoreWorkspaces": ["vendor/*"], "workspaces": { ".": { "entry": [ @@ -15,138 +11,59 @@ "examples/acp-agent/tests/**/*.e2e.ts", "examples/acp-agent/tests/**/*.snapshot.ts" ], - "project": [ - "scripts/**/*.ts", - "examples/**/*.ts" - ] + "project": ["scripts/**/*.ts", "examples/**/*.ts"] }, "packages/*/*": { - "entry": [ - "tests/**/*.spec.ts" - ], - "project": [ - "src/**/*.ts", - "tests/**/*.ts" - ] + "entry": ["tests/**/*.spec.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] }, "packages/util/brand": { - "project": [ - "src/**/*.ts" - ], - "ignoreDependencies": [ - "cordis" - ] + "project": ["src/**/*.ts"], + "ignoreDependencies": ["cordis"] }, "packages/llm/llm-deepseek": { - "entry": [ - "tests/**/*.spec.ts", - "tests/**/*.e2e.ts" - ], - "project": [ - "src/**/*.ts", - "tests/**/*.ts" - ] + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] }, "packages/llm/llm-pi-ai": { - "entry": [ - "tests/**/*.spec.ts", - "tests/**/*.e2e.ts" - ], - "project": [ - "src/**/*.ts", - "tests/**/*.ts" - ] + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] }, "packages/web/web-search-exa": { - "entry": [ - "tests/**/*.spec.ts", - "tests/**/*.e2e.ts" - ], - "project": [ - "src/**/*.ts", - "tests/**/*.ts" - ] + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] }, "packages/web/web-search-perplexity": { - "entry": [ - "tests/**/*.spec.ts", - "tests/**/*.e2e.ts" - ], - "project": [ - "src/**/*.ts", - "tests/**/*.ts" - ] - }, - "packages/web/web-search-deepseek": { - "entry": [ - "tests/**/*.spec.ts", - "tests/**/*.e2e.ts" - ], - "project": [ - "src/**/*.ts", - "tests/**/*.ts" - ] - }, - "packages/ui/acp-agent": { - "entry": [ - "tests/**/*.spec.ts", - "tests/**/*.e2e.ts" - ], - "project": [ - "src/**/*.ts", - "tests/**/*.ts" - ] - }, - "packages/ui/stdio-agent": { - "entry": [ - "tests/**/*.spec.ts", - "tests/**/*.e2e.ts" - ], - "project": [ - "src/**/*.ts", - "tests/**/*.ts" - ] - }, - "packages/subagent/subagent-spawn": { - "entry": [ - "tests/**/*.spec.ts", - "tests/**/*.e2e.ts" - ], - "project": [ - "src/**/*.ts", - "tests/**/*.ts" - ] - }, - "packages/subagent/subagent-acp": { - "entry": [ - "tests/**/*.spec.ts", - "tests/**/*.e2e.ts", - "tests/mock-acp-server.ts" - ], - "project": [ - "src/**/*.ts", - "tests/**/*.ts" - ] - }, - "packages/fs/tool-fs": { - "entry": [ - "tests/**/*.spec.ts", - "tests/**/*.e2e.ts" - ], - "project": [ - "src/**/*.ts", - "tests/**/*.ts" - ] + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] }, "packages/workflow/workflow-vm": { - "entry": [ - "tests/**/*.spec.ts", - "tests/**/*.e2e.ts" - ], - "project": [ - "src/**/*.ts", - "tests/**/*.ts" - ] + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] + }, + "packages/web/web-search-deepseek": { + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] + }, + "packages/ui/acp-agent": { + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] + }, + "packages/ui/stdio-agent": { + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] + }, + "packages/subagent/subagent-spawn": { + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] + }, + "packages/subagent/subagent-acp": { + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts", "tests/mock-acp-server.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] + }, + "packages/fs/tool-fs": { + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] } } } From 2ba4964aba52c99446d32c019e8b3bb7b97278f8 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 6 Jul 2026 00:54:21 +0800 Subject: [PATCH 023/232] docs: regenerate the services catalog for the seam-contract JSDoc --- docs/cordis-catalog/services.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 88559d658f..0c219b51b5 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -233,7 +233,7 @@ Abstract workflow execution service. Subclass, implement start, and load the sub Semantics every implementation must honor: -- start throws synchronously for a request that cannot begin (an unparseable script, an invalid meta block). Once it returns a WorkflowRun, `result` NEVER rejects — every failure resolves with `stopReason: 'error'` (or `'cancelled'`). +- start throws synchronously for a request that cannot begin (an unparseable script, an invalid meta block). Once it returns a WorkflowRun, `result` NEVER rejects — every failure resolves with `stopReason: 'error'` (or `'cancelled'`) — and once the run is cancelled, `result` SETTLES within the implementation's bounded grace even if the script itself never settles (a consumer awaiting `result` must never be wedged past a cancellation). - The `workflow/*` events fire through emitWorkflowEvent (data snapshots, per-listener containment); `workflow/end` fires exactly once per started run, after `result` is settled or as it settles. - `dispose()` reaches quiescence within a bounded grace: it cancels, waits for the script to settle AND its started children to finish disposing, and abandons whatever is left rather than hanging its caller (the engine documents what abandonment leaves behind). @@ -241,7 +241,7 @@ Semantics every implementation must honor: abstract start(request: WorkflowStartRequest): WorkflowRun ``` -Source: [`packages/workflow/workflow/src/index.ts:191`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:194`](../../packages/workflow/workflow/src/index.ts) ## Inherited `ctx` members (cordis core + loader/hmr/timer) From 706691a7dff8262f640683f74dbd68d6b9ccdeeb Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 6 Jul 2026 01:39:01 +0800 Subject: [PATCH 024/232] workflow: re-check cancellation after the slot acquire MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Codex convergence round 1 on the review-response commits: agent()'s post-acquire window was real and unguarded. `await acquireSlot()` yields at least one microtask tick even when a slot is free (and a queued waiter resumes a tick after its release), so a cancel() landing in that tick let the continuation start a child carrying an ALREADY-aborted signal — the in-code comment claimed the window could not exist. A provider that subscribes only to future abort events (the test stub; the seam does not promise pre-aborted-signal handling) would never settle such a child, leaking it until the dispose grace abandoned the run, and a backend that misses the pre-aborted signal would burn a full model turn after the user cancelled. agent() now re-checks isCancelled() immediately after the acquire (inside the slot-owning try, so the finally still releases), making every post-cancel path reject before subagents.start. New deterministic regression: cancel() in the same synchronous frame as start() lands in the free-slot await tick — the run settles cancelled with ZERO children started (previously: one leaked child and a grace-delayed settle). The raced-release test's comment now states what it actually pins (the queued-waiter rejection path). Also aligns the RFC's auto-concurrency formula with the code (min(16, max(1, availableParallelism() - 2))). --- .../feature/2026-07-05-dynamic-workflows.md | 2 +- packages/workflow/workflow-vm/src/runtime.ts | 10 +++++---- .../workflow-vm/tests/workflow-vm.spec.ts | 22 +++++++++++++++++-- 3 files changed, 27 insertions(+), 7 deletions(-) diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index f39f12f0ed..c7004f5d19 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -30,7 +30,7 @@ One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferre **Meta extraction**: a string/comment-aware brace scanner (template interpolation rejected) finds the literal; it is evaluated ALONE in an empty, timed vm context; the result must materialize to plain JSON data and pass shape validation (unknown fields rejected loud); the statement is blanked line-preservingly so stacks keep script line numbers. -**Value boundary**: values entering the host (meta, hook options, schemas, the return value) go through `materializeFromRealm` — a plain recursive walk that rejects loud everything JSON cannot carry (exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`), copying via `Object.defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation; getters are read ordinarily and their RESULT crosses (a throwing read fails loud). Values entering the realm (`args`, `agent()` results, hook promises and failures, combinator arrays) are handed over directly as host values — the script is trusted, so host prototypes are not a leak; `args` is host-`structuredClone`d once so a script cannot mutate the caller's object. Hook failures are host `WorkflowError`s: the combinators recognize fatality by host `instanceof` (unforgeable from the realm), and the script-visible consequence — in-script `instanceof Error` is `false` for hook errors; branch on `e.name`/`e.code` — is documented in the engine README. Realm functions (stages, thunks) are called, never materialized. Thrown script values are rendered by a total host-side renderer (stack → message → `String()`, fixed label if rendering throws), so `result` cannot reject. Caps (`maxConcurrentAgents` auto = `min(16, cores - 2)`, `maxTotalAgents` 1000, `maxItemsPerCall` 4096) and timeouts are validated Config, not literals. +**Value boundary**: values entering the host (meta, hook options, schemas, the return value) go through `materializeFromRealm` — a plain recursive walk that rejects loud everything JSON cannot carry (exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`), copying via `Object.defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation; getters are read ordinarily and their RESULT crosses (a throwing read fails loud). Values entering the realm (`args`, `agent()` results, hook promises and failures, combinator arrays) are handed over directly as host values — the script is trusted, so host prototypes are not a leak; `args` is host-`structuredClone`d once so a script cannot mutate the caller's object. Hook failures are host `WorkflowError`s: the combinators recognize fatality by host `instanceof` (unforgeable from the realm), and the script-visible consequence — in-script `instanceof Error` is `false` for hook errors; branch on `e.name`/`e.code` — is documented in the engine README. Realm functions (stages, thunks) are called, never materialized. Thrown script values are rendered by a total host-side renderer (stack → message → `String()`, fixed label if rendering throws), so `result` cannot reject. Caps (`maxConcurrentAgents` auto = `min(16, max(1, availableParallelism() - 2))`, `maxTotalAgents` 1000, `maxItemsPerCall` 4096) and timeouts are validated Config, not literals. ### The consumer (dsh-tool-workflow) diff --git a/packages/workflow/workflow-vm/src/runtime.ts b/packages/workflow/workflow-vm/src/runtime.ts index 7748cb2f2e..af8a30927e 100644 --- a/packages/workflow/workflow-vm/src/runtime.ts +++ b/packages/workflow/workflow-vm/src/runtime.ts @@ -375,10 +375,12 @@ export class WorkflowExecution { await this.acquireSlot() try { - // No cancelled re-check here: a cancel cannot interleave between a - // waiter's resolution and this continuation (single-threaded, no await - // between them), and a child started moments after a cancel still dies - // via the shared abort signal — the CANCELLED mapping below covers it. + // Re-check after the acquire: the await yields at least one microtask + // tick even when a slot is free, and a queued waiter resumes a tick + // after its release — a cancel() landing in either window must not + // start a child (it would carry an ALREADY-aborted signal, which a + // provider subscribing only to future abort events would never see). + if (this.isCancelled()) throw this.cancelledError() let run try { run = this.ctx.subagents.start(this.limits.provider, { diff --git a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts index e362ed6ef0..7c56d245ae 100644 --- a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts +++ b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts @@ -636,6 +636,22 @@ describe('dsh-workflow-vm', () => { expect(result.error).toBe('stackless failure') }) + it('cancel() in the same frame as start(): the awaited slot tick cannot start a child', async () => { + const { ctx, parent, provider } = await setup({ manual: true }) + // agent() enters during start()'s synchronous slice and suspends on the + // acquireSlot await (one microtask tick even with a free slot); the + // synchronous cancel below lands in that tick. Without the post-acquire + // re-check the continuation would start a child carrying an ALREADY- + // aborted signal — which the stub provider (subscribing only to future + // abort events, like a real backend) would never settle, leaking it. + const handle = ctx.workflows.start({ script: script("return await agent('never')"), parent }) + handle.cancel('immediately after start') + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + expect(provider.runs.length).toBe(0) + await handle.dispose() + }) + it('a waiter resumed by a release RACING a cancel still dies at the post-acquire check', async () => { const { ctx, parent, provider } = await setup({ manual: true, config: { provider: 'stub', maxConcurrentAgents: 1 } }) const handle = ctx.workflows.start({ @@ -643,8 +659,10 @@ describe('dsh-workflow-vm', () => { parent, }) await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) - // Same synchronous block: the release resolves b's waiter, then the - // cancel lands BEFORE b's continuation runs — b must not start a child. + // Same synchronous block: b is still a QUEUED waiter when the cancel + // lands, so cancel() rejects it outright; together with the immediate- + // cancel test above (the resumed-waiter tick), no post-cancel path can + // reach subagents.start. provider.runs[0]!.settle(text('a-done')) handle.cancel('raced') const result = await handle.result From 80250a8f2e4fd7c03bcb7ea95f5c2efa929b9c7f Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 6 Jul 2026 01:53:44 +0800 Subject: [PATCH 025/232] workflow: drop the dead abandon-timer guard in drive()'s finally MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The per-file branch gate caught it: drive()'s finally always cancels first, and every first cancel() arms the abandon timer, so the `!== undefined` guard's false arm was unreachable. clearTimeout tolerates undefined by contract — call it unguarded. --- packages/workflow/workflow-vm/src/runtime.ts | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/packages/workflow/workflow-vm/src/runtime.ts b/packages/workflow/workflow-vm/src/runtime.ts index af8a30927e..b2a117fdcc 100644 --- a/packages/workflow/workflow-vm/src/runtime.ts +++ b/packages/workflow/workflow-vm/src/runtime.ts @@ -265,8 +265,9 @@ export class WorkflowExecution { // their rejections from going unhandled.) if (this.cancelReason === undefined) this.cancel('workflow settled') // drive() settling means nothing is left to abandon — including the - // timer the self-cancel above just armed. - if (this.abandonTimer !== undefined) clearTimeout(this.abandonTimer) + // timer the self-cancel above just armed (cancel() always arms it, so + // it is never undefined here; clearTimeout tolerates undefined anyway). + clearTimeout(this.abandonTimer) } } From b95595f0c7ed9769bad0fdb1e64727ff0dc34284 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Mon, 6 Jul 2026 10:21:00 +0800 Subject: [PATCH 026/232] fix: harden runtime skill registration --- docs/core-data-structures/skills.md | 2 +- packages/core/skill/README.md | 6 ++-- packages/core/skill/src/index.ts | 19 ++++++---- packages/core/skill/tests/skill.spec.ts | 46 ++++++++++++++++++++++++- 4 files changed, 62 insertions(+), 11 deletions(-) diff --git a/docs/core-data-structures/skills.md b/docs/core-data-structures/skills.md index a7eabacf2d..51681bcfe2 100644 --- a/docs/core-data-structures/skills.md +++ b/docs/core-data-structures/skills.md @@ -71,7 +71,7 @@ interface SkillLookupOptions { } ``` -The service can be pointed at alternate user roots in tests or deployments. `installSystemSkills` controls whether bundled system skills are materialized under `/skills/.system` on startup. +The service can be pointed at alternate user roots in tests or deployments. `installSystemSkills` controls whether bundled system skills are materialized under `/skills/.system` on startup. `promptFieldMaxLength` must be at least `3`, matching the `...` truncation suffix reserved in rendered prompt fields. ```ts type-equiv interface Config { diff --git a/packages/core/skill/README.md b/packages/core/skill/README.md index a91c3f116d..84c3e8bba6 100644 --- a/packages/core/skill/README.md +++ b/packages/core/skill/README.md @@ -8,7 +8,7 @@ Agent skill discovery and model-facing skill guidance. - `ctx.skills.list({ cwd? })` Returns model-invocable skill summaries for the current workspace. - `ctx.skills.get(name, { cwd? })` Returns the full skill, including disabled-for-model skills. -- `ctx.skills.register(skill): () => void` Registers a runtime skill, disposed with the calling fiber. +- `ctx.skills.register(skill): () => void` Registers a runtime skill, disposed with the calling fiber. Same-name runtime registrations are first-wins: a duplicate logs a warning and gets a no-op disposer. ### Config @@ -18,7 +18,7 @@ Agent skill discovery and model-facing skill guidance. | `agentsHome` | `$DSH_AGENTS_HOME` or `~/.agents` | Shared agent config root scanned for compatible skills. | | `extraRoots` | `[]` | Additional skill roots scanned after user roots and before system skills. | | `installSystemSkills` | `true` | Whether startup materializes bundled system skills under `dshHome`. | -| `promptFieldMaxLength` | `500` | Maximum rendered `description` / `whenToUse` length in the prompt listing. | +| `promptFieldMaxLength` | `500` | Maximum rendered `description` / `whenToUse` length in the prompt listing; must be at least `3` because truncated fields reserve `...`. | | `collectCacheMaxEntries` | `128` | Maximum cwd/root discovery promises kept in memory. | ### Discovery @@ -39,7 +39,7 @@ The project root is the nearest ancestor containing `.git`; without one, the cur When `ctx.fs` is available, discovery lists roots through `ctx.fs.listDir`, reads skill files through `ctx.fs.readText`, and installs system skills through `ctx.fs.writeText`. Without a filesystem service, the package falls back to Node filesystem I/O so the service can still run in minimal test contexts. Missing, unreadable, or malformed skill files warn and skip instead of failing the whole request. -Discovery is memoized per resolved root set and runtime-skill revision. Runtime `register()` and disposer calls invalidate the cache; disk-only changes are picked up on the next invalidation or process restart. +Discovery is memoized per resolved root set and runtime-skill revision. Runtime `register()` and active disposer calls invalidate the cache; duplicate runtime registrations do not alter the active set. Disk-only changes are picked up on the next invalidation or process restart. ## Skill Format diff --git a/packages/core/skill/src/index.ts b/packages/core/skill/src/index.ts index 503057b8bd..e50f82d488 100644 --- a/packages/core/skill/src/index.ts +++ b/packages/core/skill/src/index.ts @@ -75,7 +75,7 @@ export interface Config { extraRoots?: string[] /** Ensure bundled system skills exist under `/skills/.system`. Defaults true. */ installSystemSkills?: boolean - /** Maximum rendered description/whenToUse length in the prompt listing. */ + /** Maximum rendered description/whenToUse length in the prompt listing; minimum 3. */ promptFieldMaxLength?: number /** Maximum number of cwd/root discovery promises kept in the in-memory cache. */ collectCacheMaxEntries?: number @@ -159,7 +159,7 @@ export class SkillService extends Service { this.installSystemSkills = config.installSystemSkills ?? true this.promptFieldMaxLength = config.promptFieldMaxLength ?? DEFAULT_PROMPT_FIELD_LENGTH this.collectCacheMaxEntries = config.collectCacheMaxEntries ?? DEFAULT_COLLECT_CACHE_ENTRIES - assertPositiveInteger('promptFieldMaxLength', this.promptFieldMaxLength) + assertPositiveInteger('promptFieldMaxLength', this.promptFieldMaxLength, 3) assertPositiveInteger('collectCacheMaxEntries', this.collectCacheMaxEntries) if (this.installSystemSkills) { const systemRoot = join(this.dshHome, 'skills/.system') @@ -178,11 +178,18 @@ export class SkillService extends Service { /** * Register a runtime skill contribution. + * Same-name runtime registrations are first-wins: a duplicate logs a warning + * and returns a no-op disposer so it cannot remove the active contribution. * @param skill - the complete skill definition to expose for discovery. - * @returns a disposer that removes the runtime skill and invalidates caches. + * @returns a disposer that removes this runtime contribution and invalidates caches. */ register(skill: SkillRegistration): () => void { const normalized = normalizeSkill(skill) + const existing = this.runtime.get(normalized.name) + if (existing !== undefined) { + this.ctx.logger.warn(`runtime skill "${normalized.name}" from ${normalized.source} ignored because it is already registered from ${existing.source}`) + return () => {} + } const dispose = this.ctx.effect(function* (this: SkillService) { this.runtime.set(normalized.name, normalized) this.invalidateCache() @@ -587,9 +594,9 @@ function promptLine(value: string, maxLength: number): string { return escapeText(truncated) } -function assertPositiveInteger(name: string, value: number): void { - if (!Number.isInteger(value) || value < 1) { - throw new Error(`skill: ${name} must be a positive integer`) +function assertPositiveInteger(name: string, value: number, minimum = 1): void { + if (!Number.isInteger(value) || value < minimum) { + throw new Error(`skill: ${name} must be an integer greater than or equal to ${minimum}`) } } diff --git a/packages/core/skill/tests/skill.spec.ts b/packages/core/skill/tests/skill.spec.ts index 183954ccdf..aed07a563b 100644 --- a/packages/core/skill/tests/skill.spec.ts +++ b/packages/core/skill/tests/skill.spec.ts @@ -1,4 +1,4 @@ -import { describe, expect, it } from 'vitest' +import { describe, expect, it, vi } from 'vitest' import { mkdir, readdir, readFile, stat, symlink, writeFile } from 'node:fs/promises' import { dirname, join } from 'node:path' import { tmpdir } from 'node:os' @@ -331,6 +331,12 @@ describe('SkillService', () => { installSystemSkills: false, promptFieldMaxLength: 0, })).rejects.toThrow('promptFieldMaxLength') + await expect(ctx.plugin(SkillService, { + dshHome: join(home, '.dsh'), + agentsHome: join(home, '.agents'), + installSystemSkills: false, + promptFieldMaxLength: 2, + })).rejects.toThrow('greater than or equal to 3') await expect(ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), @@ -661,6 +667,44 @@ describe('SkillService', () => { expect(await ctx.skills.list()).toEqual([]) }) + it('keeps the first runtime skill when a duplicate name is registered', async () => { + const home = await tempDir('skill-runtime-duplicate') + const ctx = new Context() + const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => undefined) + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + const firstDispose = ctx.skills.register({ + name: 'same-runtime', + description: 'first', + content: 'First body.', + directory: 'memory://first', + source: 'runtime', + }) + const duplicateDispose = ctx.skills.register({ + name: 'same-runtime', + description: 'second', + content: 'Second body.', + directory: 'memory://second', + source: 'runtime', + }) + + await expect(ctx.skills.get('same-runtime')).resolves.toMatchObject({ + description: 'first', + content: 'First body.', + directory: 'memory://first', + }) + expect(warn).toHaveBeenCalledWith(expect.stringContaining('runtime skill "same-runtime"')) + + duplicateDispose() + await expect(ctx.skills.get('same-runtime')).resolves.toMatchObject({ + description: 'first', + content: 'First body.', + }) + + firstDispose() + await expect(ctx.skills.get('same-runtime')).resolves.toBeUndefined() + }) + it('rejects invalid runtime skill registrations', async () => { const home = await tempDir('skill-runtime-invalid') const ctx = new Context() From 1934035d04dea2d88caa520c27d86cd8cbe8f57a Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Mon, 6 Jul 2026 10:31:45 +0800 Subject: [PATCH 027/232] docs: update skill system RFC format --- docs/rfc/INDEX.md | 1 + .../rfc/implemented/feature/2026-07-05-skill-system.md | 10 ++++------ 2 files changed, 5 insertions(+), 6 deletions(-) diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index 0c5a11a4f9..6581b8ded8 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -59,6 +59,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [dsh-hook-protocol — the shared Claude Code / Codex hook wire-protocol core](implemented/feature/2026-06-30-hook-protocol-lib.md) | 2026-06-30 | | [Interception seams — the typed-Decision surface a hook programs against](implemented/feature/2026-06-30-interception-seams.md) | 2026-06-30 | | [Subagent lifecycle enrichment — lastAssistantMessage (observe-only)](implemented/feature/2026-06-30-subagent-observe-enrich.md) | 2026-06-30 | +| [Skill system — progressive disclosure instructions for agents](implemented/feature/2026-07-05-skill-system.md) | 2026-07-05 | ### Simplification diff --git a/docs/rfc/implemented/feature/2026-07-05-skill-system.md b/docs/rfc/implemented/feature/2026-07-05-skill-system.md index 6fda27b957..12ba62bfb9 100644 --- a/docs/rfc/implemented/feature/2026-07-05-skill-system.md +++ b/docs/rfc/implemented/feature/2026-07-05-skill-system.md @@ -1,10 +1,8 @@ -# Skill system — progressive disclosure instructions for agents +# RFC: Skill system — progressive disclosure instructions for agents -## Status +Status: implemented -Implemented. - -## Context +## Problem Agent products have converged on a skill pattern: keep the request prompt small by listing only available instruction bundles, then load the full body when the model decides a task matches. Codex, Claude Code, OpenCode, and Kimi Code differ in details, but all separate discovery metadata from complete instructions so a workspace can carry reusable behavior without paying the full prompt cost on every turn. @@ -28,7 +26,7 @@ System skills are ordinary skill files materialized under `~/.dsh/skills/.system The data structures and prompt/tool contract are documented in [skills.md](../../../core-data-structures/skills.md), with service signatures in the generated [services catalog](../../../cordis-catalog/services.md). -## Rejected alternatives +## Alternatives considered **Inject full skill bodies into every system prompt.** Rejected because it destroys progressive disclosure and makes every request pay for instructions that may not apply. From 510e80e447d1cb1924d080196c2c6a317f56907d Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Mon, 6 Jul 2026 14:35:24 +0800 Subject: [PATCH 028/232] test: update ACP request-header snapshots --- examples/acp-agent/tests/snapshots/cancel/session.jsonl | 2 +- examples/acp-agent/tests/snapshots/error-finish/session.jsonl | 2 +- examples/acp-agent/tests/snapshots/fs-edit/session.jsonl | 2 +- .../acp-agent/tests/snapshots/fs-policy-reject/session.jsonl | 2 +- .../acp-agent/tests/snapshots/fs-read-window/session.jsonl | 2 +- examples/acp-agent/tests/snapshots/fs-read/session.jsonl | 2 +- .../acp-agent/tests/snapshots/fs-terminal-card/session.jsonl | 2 +- .../tests/snapshots/fs-write-overwrite/session.jsonl | 2 +- examples/acp-agent/tests/snapshots/fs-write/session.jsonl | 2 +- .../tests/snapshots/hook-cc-posttool-block/session.jsonl | 2 +- .../tests/snapshots/hook-cc-posttool-context/session.jsonl | 2 +- .../tests/snapshots/hook-cc-pretool-ask/session.jsonl | 2 +- .../tests/snapshots/hook-cc-pretool-deny/session.jsonl | 2 +- .../snapshots/hook-cc-promptsubmit-context/session.jsonl | 2 +- .../tests/snapshots/hook-cc-stop-continue/session.jsonl | 2 +- .../tests/snapshots/hook-codex-posttool-block/session.jsonl | 2 +- .../tests/snapshots/hook-codex-posttool-context/session.jsonl | 2 +- .../tests/snapshots/hook-codex-pretool-block/session.jsonl | 2 +- .../snapshots/hook-codex-promptsubmit-context/session.jsonl | 2 +- .../tests/snapshots/hook-codex-stop-continue/session.jsonl | 2 +- examples/acp-agent/tests/snapshots/multi-turn/session.jsonl | 2 +- .../acp-agent/tests/snapshots/subagent-fork/session.1.jsonl | 4 ++-- .../acp-agent/tests/snapshots/subagent-fork/session.jsonl | 2 +- .../acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl | 2 +- .../acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl | 4 ++-- .../acp-agent/tests/snapshots/subagent-mixed/session.jsonl | 2 +- .../acp-agent/tests/snapshots/subagent-multi/session.1.jsonl | 2 +- .../acp-agent/tests/snapshots/subagent-multi/session.2.jsonl | 2 +- .../acp-agent/tests/snapshots/subagent-multi/session.jsonl | 2 +- .../acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl | 2 +- .../acp-agent/tests/snapshots/subagent-spawn/session.jsonl | 2 +- examples/acp-agent/tests/snapshots/text-turn/session.jsonl | 2 +- examples/acp-agent/tests/snapshots/todo-plan/session.jsonl | 2 +- .../acp-agent/tests/snapshots/tool-call-turn/session.jsonl | 2 +- .../acp-agent/tests/snapshots/workspace-edit/session.jsonl | 2 +- 35 files changed, 37 insertions(+), 37 deletions(-) diff --git a/examples/acp-agent/tests/snapshots/cancel/session.jsonl b/examples/acp-agent/tests/snapshots/cancel/session.jsonl index 09649f4b75..58e4ffb8b7 100644 --- a/examples/acp-agent/tests/snapshots/cancel/session.jsonl +++ b/examples/acp-agent/tests/snapshots/cancel/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"Start a long task; this turn will be cancelled mid-stream."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}} {"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":0,"text":"partial"}}} {"type":"step/end","seq":6,"time":0,"data":{"turn":1,"step":1}} diff --git a/examples/acp-agent/tests/snapshots/error-finish/session.jsonl b/examples/acp-agent/tests/snapshots/error-finish/session.jsonl index 3c55987615..6d400a53d1 100644 --- a/examples/acp-agent/tests/snapshots/error-finish/session.jsonl +++ b/examples/acp-agent/tests/snapshots/error-finish/session.jsonl @@ -2,6 +2,6 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"This prompt triggers a recorded provider error."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"step/end","seq":4,"time":0,"data":{"turn":1,"step":1}} {"type":"turn/end","seq":5,"time":0,"data":{"turn":1,"reason":{"kind":"error","step":1,"message":"simulated provider error (HTTP 401)","code":"AUTH"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl b/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl index 869926f8c2..37bfe01833 100644 --- a/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279365277,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279365278,"data":{"content":[{"type":"text","text":"First use the read tool to read config.txt in the current directory. Then use the edit tool (NOT bash) to replace the literal text DEBUG with RELEASE in that file. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279365279,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279365279,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-0g5rlt.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279365279,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-0g5rlt.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279365884,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279365884,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"Let"}}} {"type":"assistant/chunk","seq":6,"time":1783279365982,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl b/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl index 3e329ba6c6..842d0e2777 100644 --- a/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279382954,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279382954,"data":{"content":[{"type":"text","text":"Do NOT use the read tool. Immediately use the edit tool to replace the literal text blue with green in settings.txt in the current directory. Do not read the file first. After the tool result, reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279382955,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279382956,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-qgXmIP.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279382956,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-qgXmIP.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279383606,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279383606,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279383721,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl b/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl index 25fa56433e..9a00ad40ca 100644 --- a/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279377803,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279377804,"data":{"content":[{"type":"text","text":"Use the read tool (NOT bash) with offset 5 and limit 4 to read lines 5 through 8 of big.txt in the current directory. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279377806,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279377806,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-mA31X1.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279377806,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-mA31X1.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279378450,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279378450,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279378533,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-read/session.jsonl b/examples/acp-agent/tests/snapshots/fs-read/session.jsonl index 3bcbd1f52d..85fd577e87 100644 --- a/examples/acp-agent/tests/snapshots/fs-read/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-read/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279355670,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279355671,"data":{"content":[{"type":"text","text":"Use the read tool (NOT bash) to read the file greeting.txt in the current directory, then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279355673,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279355673,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-Zo3aiO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279355673,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-Zo3aiO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279356329,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279356330,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279356465,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl b/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl index a17da232ca..d9fac13ea8 100644 --- a/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279337866,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279337867,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo TERMINAL_OK. Then reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279337868,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279337871,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-ImzwJW.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279337871,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-ImzwJW.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279338459,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279338459,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279338579,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl b/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl index 2ad67e723a..fdf94ea612 100644 --- a/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"First use the read tool to read data.txt in the current directory. Then use the write tool (NOT bash) to replace its entire contents with exactly the single line: replaced. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-write/session.jsonl b/examples/acp-agent/tests/snapshots/fs-write/session.jsonl index 002b7c11ca..abef504690 100644 --- a/examples/acp-agent/tests/snapshots/fs-write/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-write/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"Use the write tool (NOT bash) to create a file named notes.txt in the current directory containing exactly the single line: hello world. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl index d3124be355..4ac44af230 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279438851,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279438852,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279438853,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279438856,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-4FNHMZ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. 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Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279438856,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-4FNHMZ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. 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Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279439575,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279439576,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279439723,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-posttool-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-posttool-context/session.jsonl index 1a93b64d6f..b8235b52b5 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-posttool-context/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-posttool-context/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279454673,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279454674,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279454675,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279454676,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-l0uhay.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279454676,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-l0uhay.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279455097,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279455097,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279455192,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl index fe3c13554c..fffda139e8 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279433755,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279433756,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279433757,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279433759,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-GbznxQ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279433759,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-GbznxQ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279434229,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279434229,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279434325,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-pretool-deny/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-pretool-deny/session.jsonl index d02081687b..a2a735ffdc 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-pretool-deny/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-pretool-deny/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279428483,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279428484,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279428485,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279428488,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-YXKW6X.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279428488,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-YXKW6X.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. 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Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279429149,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279429149,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279429278,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl index a5ca0566f4..53f6cbf940 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl @@ -5,7 +5,7 @@ {"type":"user/message","seq":3,"time":1783279424786,"data":{"content":[{"type":"text","text":"What is my favorite color? Reply with just the color and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"context/message","seq":4,"time":1783279424786,"data":{"content":[{"type":"text","text":"The user has previously stated their favorite color is teal."}],"source":{"kind":"plugin","plugin":"hooks-claude"}},"surfaceOp":"append"} {"type":"step/start","seq":5,"time":1783279424787,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":6,"time":1783279424788,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-jHjRG4.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":6,"time":1783279424788,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-jHjRG4.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":7,"time":1783279425470,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":8,"time":1783279425471,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":9,"time":1783279425619,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl index 159496c81d..929409df1e 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279459589,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279459590,"data":{"content":[{"type":"text","text":"Reply with the single word FIRST and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279459591,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279459592,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-y7ZIlD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279459592,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-y7ZIlD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279460023,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279460023,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279460120,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-posttool-block/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-posttool-block/session.jsonl index 291700b06e..3e50292d5d 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-posttool-block/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-posttool-block/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279472951,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279472952,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279472953,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279472957,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-up4xkk.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279472957,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-up4xkk.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. 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Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279473683,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279473683,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279473835,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-posttool-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-posttool-context/session.jsonl index c1a6985396..dc8e1fe918 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-posttool-context/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-posttool-context/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279478902,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279478903,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279478904,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279478905,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-S4Pl3Q.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). 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Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279478905,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-S4Pl3Q.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279479573,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279479573,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279479735,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl index 5b3c67c3ac..bc84fb16ac 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279467545,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279467546,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279467547,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279467548,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-XJzzAW.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279467548,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-XJzzAW.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279468248,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279468248,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279468448,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl index 815e311638..d0dc0b550c 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl @@ -5,7 +5,7 @@ {"type":"user/message","seq":3,"time":1783279463864,"data":{"content":[{"type":"text","text":"What is my favorite color? Reply with just the color and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"context/message","seq":4,"time":1783279463864,"data":{"content":[{"type":"text","text":"The user has previously stated their favorite color is teal."}],"source":{"kind":"plugin","plugin":"hooks-codex"}},"surfaceOp":"append"} {"type":"step/start","seq":5,"time":1783279463865,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":6,"time":1783279463866,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-dXMGno.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":6,"time":1783279463866,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-dXMGno.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":7,"time":1783279464538,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":8,"time":1783279464539,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":9,"time":1783279464680,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl index 200002f660..bd7f21b30b 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279484315,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279484316,"data":{"content":[{"type":"text","text":"Reply with the single word FIRST and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279484317,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279484319,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-CW2Kzh.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279484319,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-CW2Kzh.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279484964,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279484964,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279485118,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/multi-turn/session.jsonl b/examples/acp-agent/tests/snapshots/multi-turn/session.jsonl index 34b132fc9b..d1488562b9 100644 --- a/examples/acp-agent/tests/snapshots/multi-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/multi-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279390951,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279390951,"data":{"content":[{"type":"text","text":"Reply with exactly the word: ONE. No tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279390953,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279390953,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-YRz0cJ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279390953,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-YRz0cJ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279391532,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279391532,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279391637,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl index 6bd3e572a6..b9df18dad9 100644 --- a/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279408071,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279408071,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is MARMALADE. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279408072,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279408073,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279408073,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. 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Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279408758,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279408758,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279408906,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} @@ -35,7 +35,7 @@ {"type":"turn/start","seq":33,"time":1783279410879,"data":{"turn":2,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":34,"time":1783279410880,"data":{"content":[{"type":"text","text":"What is the project codeword mentioned earlier in this conversation? Reply with exactly that one word and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":35,"time":1783279410880,"data":{"turn":2,"step":1}} -{"type":"request/header","seq":36,"time":1783279410880,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"resume"}} +{"type":"request/header","seq":36,"time":1783279410880,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"resume"}} {"type":"assistant/chunk","seq":37,"time":1783279411585,"data":{"turn":2,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":38,"time":1783279411586,"data":{"turn":2,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":39,"time":1783279411711,"data":{"turn":2,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl index 0c2ae83d17..e21dba852b 100644 --- a/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279408071,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279408071,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is MARMALADE. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279408072,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279408073,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279408073,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279408758,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279408758,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279408906,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl index 0a9360546a..7f426c7e0f 100644 --- a/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279418198,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279418198,"data":{"content":[{"type":"text","text":"Reply with exactly the word ALPHA and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279418198,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279418198,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279418198,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279418756,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279418756,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279418937,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl b/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl index 449acfb168..eec185bfd7 100644 --- a/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279415444,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279415445,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is SAFFRON. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279415446,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279415446,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279415446,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279416146,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279416146,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279416310,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} @@ -29,7 +29,7 @@ {"type":"turn/start","seq":27,"time":1783279420404,"data":{"turn":2,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":28,"time":1783279420404,"data":{"content":[{"type":"text","text":"What is the project codeword mentioned earlier in this conversation? Reply with exactly that one word and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":29,"time":1783279420405,"data":{"turn":2,"step":1}} -{"type":"request/header","seq":30,"time":1783279420405,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"resume"}} +{"type":"request/header","seq":30,"time":1783279420405,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"resume"}} {"type":"assistant/chunk","seq":31,"time":1783279421097,"data":{"turn":2,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":32,"time":1783279421098,"data":{"turn":2,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":33,"time":1783279421204,"data":{"turn":2,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl index c8ace8254e..9d6fe663cd 100644 --- a/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279415444,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279415445,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is SAFFRON. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279415446,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279415446,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279415446,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279416146,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279416146,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279416310,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl index b40d4f9845..d650e3f381 100644 --- a/examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279402204,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279402204,"data":{"content":[{"type":"text","text":"Reply with exactly the word ALPHA and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279402205,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279402205,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279402205,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279402608,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279402608,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279402723,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl b/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl index a49d90b80f..6e37fa2ad6 100644 --- a/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279403730,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279403730,"data":{"content":[{"type":"text","text":"Reply with exactly the word BETA and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279403730,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279403730,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279403730,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279404370,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279404370,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279404532,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl index 7c1cf16d55..0960b62547 100644 --- a/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279400642,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279400642,"data":{"content":[{"type":"text","text":"Use the subagent tool TWICE, once at a time, to delegate two subtasks to child agents. First subtask: 'Reply with exactly the word ALPHA and nothing else.' Second subtask (after the first returns): 'Reply with exactly the word BETA and nothing else.' After both subagents return, reply with the single word PARENT_DONE and stop. Do not use the bash tool."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279400643,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279400646,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279400646,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279401312,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279401312,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279401437,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl index abd72a7ab5..c38e6d2988 100644 --- a/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279396597,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279396597,"data":{"content":[{"type":"text","text":"Reply with exactly the word CHILD_OK and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279396598,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279396598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-JrLIIO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279396598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-JrLIIO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279397154,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279397154,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279397252,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl index edb2f9be7a..f0bc7d96f2 100644 --- a/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279395301,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279395302,"data":{"content":[{"type":"text","text":"Use the subagent tool exactly once to delegate this subtask to a child agent: 'Reply with exactly the word CHILD_OK and nothing else.' After the subagent returns, reply with the single word PARENT_DONE and stop. Do not use the bash tool."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279395303,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279395304,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-JrLIIO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279395304,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-JrLIIO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279395862,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279395862,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279395973,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl index afdd312983..539747bd0c 100644 --- a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279329596,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279329596,"data":{"content":[{"type":"text","text":"Reply with exactly the word: PONG. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279329598,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279329598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-q0sbE9.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279329598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-q0sbE9.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279330062,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279330062,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279330154,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl b/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl index 54fc71daaa..5e4e8db328 100644 --- a/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl +++ b/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279342895,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279342896,"data":{"content":[{"type":"text","text":"Use the todo_write tool to record a plan with exactly three todos: \"read the code\" (in_progress), \"write the fix\" (pending), \"run the tests\" (pending). Send all three in one todo_write call. Then reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279342897,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279342898,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-t9J1QD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279342898,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-t9J1QD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279343592,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279343592,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279343701,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl b/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl index e0bd20f7c7..ebb703ee55 100644 --- a/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279332863,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279332864,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo SNAPSHOT_OK. Then reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279332865,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279332868,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-lH9qMe.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279332868,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-lH9qMe.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279333505,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279333505,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279333653,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl b/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl index 5c250d00fb..e9b19b4fda 100644 --- a/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl +++ b/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"A file named greeting.txt in the current directory contains one word. Use the bash tool to append a second line containing the word WORLD to it (so it has two lines), then read the file back with `cat greeting.txt` to confirm, and reply with the single word DONE. Use a single bash call per action."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"Let"}}} {"type":"assistant/chunk","seq":6,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}} From 426d65a2a25327eacecf66e67175d830cacc05de Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Mon, 6 Jul 2026 15:59:12 +0800 Subject: [PATCH 029/232] fix: honor fs when locating skill project roots --- docs/core-data-structures/skills.md | 2 +- .../feature/2026-07-05-skill-system.md | 2 +- packages/core/skill/README.md | 4 +- packages/core/skill/src/index.ts | 42 ++++++++++++++++--- packages/core/skill/tests/skill.spec.ts | 26 ++++++++++++ 5 files changed, 66 insertions(+), 10 deletions(-) diff --git a/docs/core-data-structures/skills.md b/docs/core-data-structures/skills.md index 51681bcfe2..6823deb118 100644 --- a/docs/core-data-structures/skills.md +++ b/docs/core-data-structures/skills.md @@ -63,7 +63,7 @@ type SkillRegistration = Omit & { ## Lookup and configuration -Skill lookup is cwd-sensitive because project skill roots are relative to the current workspace. If no git root is found, the supplied cwd itself is the project root. +Skill lookup is cwd-sensitive because project skill roots are relative to the current workspace. If no git root is found, the supplied cwd itself is the project root. When `ctx.fs` is available, the git-root walk probes `.git` through the filesystem service so remote or sandboxed workspaces do not fall back to the host filesystem boundary. ```ts type-equiv interface SkillLookupOptions { diff --git a/docs/rfc/implemented/feature/2026-07-05-skill-system.md b/docs/rfc/implemented/feature/2026-07-05-skill-system.md index 12ba62bfb9..fa1cf74ddd 100644 --- a/docs/rfc/implemented/feature/2026-07-05-skill-system.md +++ b/docs/rfc/implemented/feature/2026-07-05-skill-system.md @@ -16,7 +16,7 @@ Discovery scans cwd-sensitive project roots, runtime registrations, user roots, Each skill is either `/SKILL.md` or `.md` with YAML frontmatter. `name` and `description` are required; `whenToUse`, `disableModelInvocation`, and `metadata` are optional. Names are kebab-case. YAML frontmatter is parsed with the `yaml` package instead of `js-yaml` or a hand-written parser: `yaml` is the already-declared modern parser for this package's limited frontmatter needs, and a narrow parser would either reject valid YAML users expect to work or grow into an unreviewed YAML subset. -Skill filesystem I/O goes through `ctx.fs` when a filesystem service is loaded: root discovery uses `listDir`, skill reads use `readText`, and system-skill installation uses `writeText`. The Node filesystem remains a fallback for minimal contexts that mount `dsh-skill` without the fs seam. Missing roots and unreadable or malformed skill files degrade to warn-and-skip so one bad local file does not make every agent request fail. +Skill filesystem I/O goes through `ctx.fs` when a filesystem service is loaded: project-root lookup probes `.git` with `resolve` and `stat`, root discovery uses `listDir`, skill reads use `readText`, and system-skill installation uses `writeText`. The Node filesystem remains a fallback for minimal contexts that mount `dsh-skill` without the fs seam. Missing roots and unreadable or malformed skill files degrade to warn-and-skip so one bad local file does not make every agent request fail. The service injects a request-time `## Skills` fragment through the existing `agent/request` waterfall. It appends to `GenerateOptions.system` instead of changing `systemPrompt.assemble()`, because the available project skills depend on the calling agent's cwd. The fragment contains only stable routing metadata and is sorted by skill name after first-wins collection, so equivalent workspaces produce deterministic prompt text and better prefix-cache reuse. Full skill bodies are never included in the listing. diff --git a/packages/core/skill/README.md b/packages/core/skill/README.md index 84c3e8bba6..2d92fd8354 100644 --- a/packages/core/skill/README.md +++ b/packages/core/skill/README.md @@ -35,9 +35,9 @@ Default roots are resolved in this conflict priority order: | Extra | `Config.extraRoots` | | System | `~/.dsh/skills/.system` | -The project root is the nearest ancestor containing `.git`; without one, the current cwd is used. The user DSH root skips `.system` during normal user scanning so system skills are read exactly once. Same-name skills keep the highest-priority copy, then model-visible summaries are sorted by skill name for stable prompts and provider prefix-cache friendliness. +The project root is the nearest ancestor containing `.git`; without one, the current cwd is used. When `ctx.fs` is available, that ancestor lookup probes `.git` through the filesystem service rather than the host filesystem so remote or sandboxed workspaces keep their own project boundary. The user DSH root skips `.system` during normal user scanning so system skills are read exactly once. Same-name skills keep the highest-priority copy, then model-visible summaries are sorted by skill name for stable prompts and provider prefix-cache friendliness. -When `ctx.fs` is available, discovery lists roots through `ctx.fs.listDir`, reads skill files through `ctx.fs.readText`, and installs system skills through `ctx.fs.writeText`. Without a filesystem service, the package falls back to Node filesystem I/O so the service can still run in minimal test contexts. Missing, unreadable, or malformed skill files warn and skip instead of failing the whole request. +When `ctx.fs` is available, discovery lists roots through `ctx.fs.listDir`, reads skill files through `ctx.fs.readText`, and installs system skills through `ctx.fs.writeText`. Without a filesystem service, the package falls back to Node filesystem I/O for project-root lookup, discovery, reads, and installation so the service can still run in minimal test contexts. Missing, unreadable, or malformed skill files warn and skip instead of failing the whole request. Discovery is memoized per resolved root set and runtime-skill revision. Runtime `register()` and active disposer calls invalidate the cache; duplicate runtime registrations do not alter the active set. Disk-only changes are picked up on the next invalidation or process restart. diff --git a/packages/core/skill/src/index.ts b/packages/core/skill/src/index.ts index e50f82d488..cad8bdd423 100644 --- a/packages/core/skill/src/index.ts +++ b/packages/core/skill/src/index.ts @@ -296,7 +296,7 @@ export class SkillService extends Service { private async roots(cwd: string | undefined): Promise<{ project: SkillRoot[]; shared: SkillRoot[] }> { const project: SkillRoot[] = [] if (cwd !== undefined) { - const projectRoot = await findProjectRoot(resolve(cwd)) + const projectRoot = await findProjectRoot(resolve(cwd), optionalFileSystem(this.ctx)) project.push( { path: join(projectRoot, '.dsh/skills'), source: 'project-dsh' }, { path: join(projectRoot, '.agents/skills'), source: 'project-agents' }, @@ -549,14 +549,11 @@ function findClosingFrontmatter(raw: string, start: number): { start: number; bo } } -async function findProjectRoot(cwd: string): Promise { +async function findProjectRoot(cwd: string, fs: FileSystem | undefined): Promise { let current = cwd while (true) { - try { - await access(join(current, '.git')) + if (await pathExists(join(current, '.git'), fs)) { return current - } catch { - // Continue walking upward until a git root is found. } const parent = dirname(current) if (parent === current) return cwd @@ -564,6 +561,39 @@ async function findProjectRoot(cwd: string): Promise { } } +async function pathExists(path: string, fs: FileSystem | undefined): Promise { + if (fs !== undefined) { + return await pathExistsInFileSystem(path, fs) + } + return await pathExistsInNode(path) +} + +async function pathExistsInFileSystem(path: string, fs: FileSystem): Promise { + let target + try { + target = await fs.resolve(path) + } catch { + // A backend may reject or hide this candidate; continue walking upward. + return false + } + try { + return await fs.stat(target) !== undefined + } catch { + // Transient stat failures make only this git-root candidate unusable. + return false + } +} + +async function pathExistsInNode(path: string): Promise { + try { + await access(path) + return true + } catch { + // Missing host paths are expected while walking toward the filesystem root. + return false + } +} + function normalizeSkill(skill: SkillRegistration): SkillDefinition { if (!SKILL_NAME.test(skill.name)) throw new Error(`invalid skill name "${skill.name}"`) if (skill.description.length === 0) throw new Error(`skill "${skill.name}" requires a description`) diff --git a/packages/core/skill/tests/skill.spec.ts b/packages/core/skill/tests/skill.spec.ts index aed07a563b..eab5cad5a2 100644 --- a/packages/core/skill/tests/skill.spec.ts +++ b/packages/core/skill/tests/skill.spec.ts @@ -25,6 +25,7 @@ class TestFileSystem extends FileSystem { listDirCalls = 0 failResolvePaths = new Set() failStatPaths = new Set() + statOverrides = new Map() override async resolve(path: string): Promise { if (this.failResolvePaths.has(path)) throw new Error('resolve failed') @@ -33,6 +34,7 @@ class TestFileSystem extends FileSystem { override async stat(target: FsTarget): Promise { if (this.failStatPaths.has(target.displayPath)) throw new Error('stat failed') + if (this.statOverrides.has(target.displayPath)) return this.statOverrides.get(target.displayPath) try { const fs = await import('node:fs/promises') const info = await fs.stat(target.displayPath) @@ -458,6 +460,30 @@ describe('SkillService', () => { expect(await ctx.skills.get('binary-skill')).toBeUndefined() }) + it('uses the filesystem service when locating a workspace project root', async () => { + const home = await tempDir('skill-project-root-fs') + const project = await tempDir('skill-project-root-backend') + const nestedCwd = join(project, 'packages/app') + await mkdir(nestedCwd, { recursive: true }) + await writeSkill(join(project, '.agents/skills'), 'backend-root', 'Backend root skill') + + const ctx = new Context() + await ctx.plugin(TestFileSystem) + const fs = ctx.fs as TestFileSystem + fs.failResolvePaths.add(join(nestedCwd, '.git')) + fs.failStatPaths.add(join(project, 'packages/.git')) + fs.statOverrides.set(join(project, '.git'), { + version: FsVersion('virtual-git'), + type: 'directory', + size: 0, + }) + await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + + expect((await ctx.skills.list({ cwd: nestedCwd })).map(skill => [skill.name, skill.source])).toEqual([ + ['backend-root', 'project-agents'], + ]) + }) + it('degrades when bundled system skill installation fails', async () => { const home = await tempDir('skill-install-fail') await writeFile(join(home, '.dsh'), 'not a directory') From 8615e019d349b5527f10569d913d8ff6d7f1bcd9 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Mon, 6 Jul 2026 16:23:52 +0800 Subject: [PATCH 030/232] feat(timeout): add dsh-timeout and converge bash + web_fetch onto it Timeout timing/classification was re-implemented three ways across the tool-bearing capabilities, with the fusion of timeout+cancel and the timeout-vs-cancel reason recovery being the error-prone parts. Extract that shared half into a zero-dependency @deepseek-ai/dsh-timeout library (clampTimeout/deadline/timeoutOf/TimeoutReason) and leave the non-shareable hard-kill in each capability, per the timeout-library RFC. bash: run() owns the deadline; runBash drops its killTimer and no longer classifies (SpawnSpec/SpawnOutcome lose timeoutMs/timedOut/aborted), so the public timedOut/aborted booleans become mutually-exclusive first-abort classifications. web_fetch: the hand-rolled controller/timer/listener/ signal.reason dance is replaced by provider-owned deadline/timeoutOf, keeping the WEB_FETCH_TIMEOUT / WEB_ABORTED contract. fs stays timeout-free (README states why). --- docs/module-graph.md | 8 +- docs/rfc/INDEX.md | 1 + .../2026-07-06-timeout-deadline-library.md | 98 +++++++++++ knip.json | 5 + packages/bash/bash-local/package.json | 2 + packages/bash/bash-local/src/index.ts | 36 ++-- packages/bash/bash-local/src/run.ts | 48 +++--- .../bash/bash-local/tests/executor.spec.ts | 16 ++ packages/bash/bash-local/tests/run.spec.ts | 25 ++- packages/bash/bash-local/tsconfig.json | 3 + packages/fs/README.md | 5 + packages/util/README.md | 3 + packages/util/timeout/README.md | 40 +++++ packages/util/timeout/package.json | 30 ++++ packages/util/timeout/src/index.ts | 149 ++++++++++++++++ packages/util/timeout/tests/timeout.spec.ts | 160 ++++++++++++++++++ packages/util/timeout/tsconfig.json | 11 ++ packages/web/web-fetch-local/package.json | 2 + packages/web/web-fetch-local/src/provider.ts | 70 +++----- packages/web/web-fetch-local/tsconfig.json | 3 + pnpm-lock.yaml | 12 ++ tsconfig.build.json | 1 + tsconfig.json | 1 + 23 files changed, 638 insertions(+), 91 deletions(-) create mode 100644 docs/rfc/implemented/architecture/2026-07-06-timeout-deadline-library.md create mode 100644 packages/util/timeout/README.md create mode 100644 packages/util/timeout/package.json create mode 100644 packages/util/timeout/src/index.ts create mode 100644 packages/util/timeout/tests/timeout.spec.ts create mode 100644 packages/util/timeout/tsconfig.json diff --git a/docs/module-graph.md b/docs/module-graph.md index ed1cc592d4..a4e729484d 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -9,6 +9,7 @@ Inter-package dependencies among the `@deepseek-ai/dsh-*` harness packages, deri flowchart TD subgraph group_util["packages/util"] pkg_brand["brand"] + pkg_timeout["timeout"] end subgraph group_llm["packages/llm"] pkg_llm["llm"] @@ -86,6 +87,7 @@ flowchart TD pkg_session --> pkg_llm pkg_system_prompt --> pkg_llm pkg_bash_local --> pkg_bash + pkg_bash_local --> pkg_timeout pkg_fs --> pkg_brand pkg_fs --> pkg_llm pkg_web --> pkg_llm @@ -97,6 +99,7 @@ flowchart TD pkg_fs_policy --> pkg_fs pkg_compact --> pkg_llm pkg_compact --> pkg_session + pkg_web_fetch_local --> pkg_timeout pkg_web_fetch_local --> pkg_web pkg_web_search_deepseek --> pkg_web pkg_web_search_exa --> pkg_web @@ -205,6 +208,7 @@ flowchart TD | Package | Group | Depends on | | --- | --- | --- | | [`brand`](../packages/util/brand) | `util` | — | +| [`timeout`](../packages/util/timeout) | `util` | — | | [`app-boot`](../packages/ui/app-boot) | `ui` | — | | [`llm`](../packages/llm/llm) | `llm` | [`brand`](../packages/util/brand) | | [`bash`](../packages/bash/bash) | `bash` | [`brand`](../packages/util/brand) | @@ -212,14 +216,14 @@ flowchart TD | [`llm-pi-ai`](../packages/llm/llm-pi-ai) | `llm` | [`llm`](../packages/llm/llm) | | [`session`](../packages/core/session) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | | [`system-prompt`](../packages/core/system-prompt) | `core` | [`llm`](../packages/llm/llm) | -| [`bash-local`](../packages/bash/bash-local) | `bash` | [`bash`](../packages/bash/bash) | +| [`bash-local`](../packages/bash/bash-local) | `bash` | [`bash`](../packages/bash/bash), [`timeout`](../packages/util/timeout) | | [`fs`](../packages/fs/fs) | `fs` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | | [`web`](../packages/web/web) | `web` | [`llm`](../packages/llm/llm) | | [`agent`](../packages/core/agent) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`fs-local`](../packages/fs/fs-local) | `fs` | [`fs`](../packages/fs/fs) | | [`fs-policy`](../packages/fs/fs-policy) | `fs` | [`fs`](../packages/fs/fs) | | [`compact`](../packages/compact/compact) | `compact` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | -| [`web-fetch-local`](../packages/web/web-fetch-local) | `web` | [`web`](../packages/web/web) | +| [`web-fetch-local`](../packages/web/web-fetch-local) | `web` | [`timeout`](../packages/util/timeout), [`web`](../packages/web/web) | | [`web-search-deepseek`](../packages/web/web-search-deepseek) | `web` | [`web`](../packages/web/web) | | [`web-search-exa`](../packages/web/web-search-exa) | `web` | [`web`](../packages/web/web) | | [`web-search-perplexity`](../packages/web/web-search-perplexity) | `web` | [`web`](../packages/web/web) | diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index 0c5a11a4f9..5307c381c8 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -118,6 +118,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [Add direct directory listing to the filesystem seam](implemented/architecture/2026-07-03-filesystem-directory-listing-seam.md) | 2026-07-03 | | [Prompt variables and tool-guidance ownership](implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md) | 2026-07-05 | | [Subagent provider-lifecycle events — `subagent/provider-added` / `subagent/provider-removed`](implemented/architecture/2026-07-05-subagent-provider-lifecycle-events.md) | 2026-07-05 | +| [A shared timeout/deadline primitive, with hard-kill left to each capability](implemented/architecture/2026-07-06-timeout-deadline-library.md) | 2026-07-06 | ### Process diff --git a/docs/rfc/implemented/architecture/2026-07-06-timeout-deadline-library.md b/docs/rfc/implemented/architecture/2026-07-06-timeout-deadline-library.md new file mode 100644 index 0000000000..84fc5b3ea2 --- /dev/null +++ b/docs/rfc/implemented/architecture/2026-07-06-timeout-deadline-library.md @@ -0,0 +1,98 @@ +# RFC: A shared timeout/deadline primitive, with hard-kill left to each capability + +Status: implemented + +## Problem + +Timeout handling was drifting apart across the tool-bearing capabilities, and the divergence was not superficial — it was the same logic re-implemented three ways, each with its own subtle correctness burden. + +- **bash** ([packages/bash/bash-local/src/run.ts](../../../../packages/bash/bash-local/src/run.ts)) had a full, correct timeout inside the process plumbing: a config-clamped `timeoutMs`, two independent triggers — a `killTimer` for the timeout and an `onAbort` listener for upstream cancellation — each calling one `kill()` closure that escalates SIGTERM→grace→SIGKILL on the process group, and two orthogonal outcome booleans (`timedOut`, `aborted`) latched independently. +- **web_fetch** ([packages/web/web-fetch-local/src/provider.ts](../../../../packages/web/web-fetch-local/src/provider.ts)) had a correct but *hand-rolled* timeout: it constructed an `AbortController`, wired `setTimeout(() => controller.abort(new WebError(…, 'WEB_FETCH_TIMEOUT')))`, manually added and removed the upstream-signal listener, cleared the timer in a `finally`, and recovered the timeout reason from `signal.reason` in a `translateAbortOrNetwork` helper because the reader surfaces a bare `AbortError`. +- **web_search** ([packages/web/tool-web/src/search.ts](../../../../packages/web/tool-web/src/search.ts)) had **no timeout at all**: `WebSearchRequest` ([packages/web/web/src/types.ts](../../../../packages/web/web/src/types.ts)) carries no `timeoutMs` field, and each provider's `search()` only forwards `exec.signal`. (web_search stays untimed here — see Consequences.) + +Each new external-process or network tool re-derived the same four things — clamp the requested value, start a timer, fuse the timeout with upstream cancellation, and distinguish "timed out" from "cancelled" on the way out — and the fusion and reason-recovery are exactly the parts that are easy to get subtly wrong (web_fetch's `signal.reason` dance is evidence). At the same time, the *termination* each performs is irreducibly different: bash kills an OS process group (work runs in a child process, outside this runtime, reachable only by signal), while web aborts an in-process `fetch` (undici tears down the socket). There is no single mechanism that can stop all of them. + +The two reference agents surveyed converged on the same split. Codex models "what will end this exec early" as one value (`ExecExpiration`, an enum fusing timeout and a cancellation token) whose `wait_with_outcome()` returns `TimedOut | Cancelled`, while the actual `kill_process_group` lives outside it — and that abstraction is reused *only* across the exec family, with MCP, model-stream, and guardian each keeping their own bespoke `tokio::time::timeout`. Claude Code shares nothing: bash and ripgrep each own a private SIGTERM→SIGKILL kill and distinguish timeout from cancellation by throwing distinct error types, while file I/O has no timeout. Both confirm the boundary drawn here: the timing-and-classification half is worth sharing within a family of like-terminated operations; the termination half is not shareable and stays in each capability. + +## Decision + +`@deepseek-ai/dsh-timeout` lives under `packages/util/` (peer to `dsh-brand`) and owns the *timing and classification* half of timeout; the *termination* half — the hard kill — stays in each capability's implementation. It is a library of pure functions, **not** a cordis service or plugin: it takes no `ctx`, registers nothing, holds no cross-call state, and emits no events. There is deliberately no central "timeout service" that would have to know how to stop every capability's work — that knowledge is exactly what a microkernel keeps out of shared layers, and what Codex's exec-only `ExecExpiration` scope demonstrates. + +### The library surface + +Three functions plus one reason type: + +```ts ignore-check +/** The internal reason attached to a timeout abort, so consumers can classify it after the fact. */ +export class TimeoutReason extends Error { + override name = 'TimeoutReason' + + constructor(readonly code: string, readonly timeoutMs: number) { + super(`${code} after ${timeoutMs}ms`) + } +} + +/** Validate/fill a caller's optional positive hint from the backend's default, then cap at its max. */ +export function clampTimeout( + requested: number | undefined, + def: number, + max: number, + name = 'timeoutMs', +): number + +/** + * Build a deadline signal that aborts on upstream cancellation OR on timeout, + * with the timeout carrying a `TimeoutReason`. `timeoutMs <= 0` means "no + * timeout" (background tasks): forward only the upstream signal, arm no timer. + * The returned object's `[Symbol.dispose]` clears the timer — `using` for a + * scope-lifetime consumer, a manual call for an event-lifetime one. + */ +export function deadline( + upstream: AbortSignal | undefined, + timeoutMs: number, + code: string, +): { signal: AbortSignal; [Symbol.dispose](): void } + +/** Recover the TimeoutReason from an aborted signal (or error), else undefined. */ +export function timeoutOf(x: AbortSignal | { reason?: unknown }): TimeoutReason | undefined +``` + +`deadline` is `AbortSignal.any([upstream, ])` with three things the standard library does not give: a typed, identifiable `TimeoutReason` on the timeout abort (native `AbortSignal.timeout()` yields a fixed `TimeoutError`, indistinguishable across timeout kinds), an internal `timeoutMs <= 0` "no timeout" sentinel for backend-owned background work, and a `Symbol.dispose` cleanup that works with both `using` and manual disposal. `AbortSignal.any` is a Node ≥ 20 primitive; it is the single mechanism that fuses two abort sources into one, adopting the reason of whichever fires first. External request hints validate as positive finite numbers via `clampTimeout` before they reach `deadline`; `0` is not a model-/plugin-facing "disable timeout" value. When `timeoutMs <= 0` and no upstream signal is present, `deadline()` returns a never-aborting signal plus a no-op disposer so callers keep one call shape. `TimeoutReason` is an internal classification reason: providers translate it into seam-specific public errors or result fields before returning to callers. + +### The division of labor + +| Concern | Owner | +|---|---| +| Validate request hint and clamp default/max | `dsh-timeout` (`clampTimeout`) — pure arithmetic plus the shared positive-finite request contract | +| Arm timer, abort on deadline, carry reason, fuse with upstream cancel | `dsh-timeout` (`deadline`) | +| Clear the timer | `dsh-timeout` (`[Symbol.dispose]`) | +| Classify the first abort reason after abort | `dsh-timeout` (`timeoutOf`) | +| **Actually terminate the work** | the capability's implementation | +| The default/max *values* | the capability's config | +| The timeout `code` string | the capability (`WEB_FETCH_TIMEOUT` ≠ `BASH_TIMEOUT`) | + +The signal only *notifies*; termination is always the listener's job, and the listener differs by capability. bash writes its own `addEventListener('abort', kill)` because the OS process lives outside this runtime and nothing else will kill it; web hands `d.signal` to `fetch` and undici tears down the socket. This is why file read/write/edit take **no** `timeoutMs`: a local syscall is best-effort-abortable at most, a timeout could not force `fsync`/`rename` to stop, and adding one would be an implicit default that violates explicit-over-implicit. Both reference agents leave file I/O untimed for the same reason. + +### How each capability consumes it + +- **web_fetch** — the tool stays validate-and-forward; the provider's hand-rolled controller + `setTimeout` + manual listener + `finally` + `signal.reason` recovery is replaced by provider-owned `deadline`/`timeoutOf`. A pre-aborted upstream signal still throws `WEB_ABORTED` up front; otherwise `fetch` runs against the fused `d.signal`, and `translateAbortOrNetwork` classifies a thrown error by the signal (`timeoutOf` → `WEB_FETCH_TIMEOUT`, else aborted → `WEB_ABORTED`, else network → `WEB_PROVIDER_ERROR`). The public error-code contract is unchanged, and `TimeoutReason` never crosses the web seam as the public error. +- **bash** — `resolve()` stays a pure request-to-spec step: it clamps with `clampTimeout(request.timeoutMs, config.timeoutMs, config.maxTimeoutMs, 'bash-local: request.timeoutMs')` and carries `request.signal` through unchanged. Foreground `run()` owns the timeout: `using d = deadline(spec.signal, spec.timeoutMs, 'BASH_TIMEOUT')`, then `runBash` receives only `d.signal`. `runBash` no longer owns any timer — it listens for abort and runs its existing SIGTERM→grace→SIGKILL process-group kill, and its `SpawnSpec`/`SpawnOutcome` no longer carry `timeoutMs`/`timedOut`/`aborted` (the executor classifies from the deadline signal instead). `run()` computes `timedOut = timeoutOf(d.signal) !== undefined` and `aborted = d.signal.aborted && !timedOut`, so the public seam booleans (`BashRunResult.timedOut`/`aborted`) are mutually exclusive — the shared deadline reports the cause that first cut the command short. Background `start()` creates no deadline and forwards only the upstream signal, so background tasks stay timeout-free; a task's killed-vs-completed status reads its own `spec.signal.aborted`. + +## Consequences + +- `runBash`'s outcome no longer independently latches `timedOut` and `aborted`; a timeout and a user abort racing before process close now report a single first-abort cause instead of both being true. The uniform SIGTERM→grace→SIGKILL kill is unchanged, and the seam type `BashRunResult` keeps both booleans (now mutually exclusive), so `dsh-tool-bash`'s result rendering is untouched. +- `SpawnSpec.timeoutMs` and `SpawnOutcome.timedOut`/`aborted` were removed rather than kept as always-zero/always-false vestiges: with `runBash` owning no timer and the executor owning classification, they were read nowhere. This is the one deviation from the literal proposal shape (which passed `timeoutMs: 0` into `runBash`); an always-0 field read by nothing is dead weight under the per-file coverage gate. +- web_fetch shed its bespoke controller/timer/listener/reason-recovery; the classifier now keys off the deadline signal (`timeoutOf` + `aborted`) rather than the thrown error's shape, which is robust across both the request-phase reject-with-reason and the read-phase bare-`AbortError`. +- `AbortSignal.any` and `using`/`Symbol.dispose` enter the repo for the first time here (Node ≥ 24 baseline, already met). + +Out of scope, named to mark the boundary: `web_search` can gain an optional model-facing `timeout_ms` once its tool-schema/snapshot coverage is planned; future ripgrep-backed fs discovery tools can consume the same provider-owned deadline shape once they exist; a `tools/execute` waterfall middleware could arm a default deadline for every tool call by driving `exec.signal` — that would be a plugin that *consumes* this library and still only notifies, the hard kill remaining each capability's job. + +## Alternatives considered + +**A unified timeout *plugin* / `ctx.timeout` service.** Rejected on microkernel grounds. A service that could stop any tool's work would have to understand every capability's termination mechanism (process-group SIGKILL, socket teardown, syscall-boundary checks) — the "kernel knows too much" the architecture forbids. Codex's `ExecExpiration` is scoped to the exec family precisely because the kill it drives (`killpg`) is process-family-specific; MCP and model-stream keep their own. There is no coherent middle layer that owns termination for everything, so the shared piece can only be the pure timing/classification half — a library, not a service. + +**Per-tool ad-hoc timeout, no shared code (the prior status quo, and Claude Code's choice).** Rejected because it was already producing divergence and duplicated correctness burden: web_fetch hand-rolled the exact controller/reason logic that future network/process-backed tools would each have to re-derive, and the fusion + `signal.reason` recovery are the error-prone parts. Claude Code tolerates full duplication; this repo has a single shared abort channel (`exec.signal` on every `execute`) that makes a small shared primitive strictly cleaner, so the cost/benefit differs. + +**A `withTimeout(promise, ms)` wrapper instead of a signal factory.** Rejected because racing a promise against a timer resolves the *tool-call* promise on deadline without stopping the underlying work — the child process or fetch socket leaks on. Handing out a signal and requiring the capability to listen is what forces a real termination path to exist. This mirrors the "dispose must reach quiescence, not just request it" defensive rule. + +**Keep bash's two independent triggers (`killTimer` + `onAbort`) rather than fusing.** Rejected for the convergence goal: fusing into one `deadline` signal removes bash's bespoke timer and gives every capability one shape. The trade-off is that bash's `timedOut`/`aborted` booleans become first-abort classifications rather than independent facts that can both be true when timeout and user abort race before process close. That is acceptable because the result reports the cause that first cut the command short; the termination action stays the same uniform SIGTERM→grace→SIGKILL kill. Note the deliberate non-alignment with Codex: Codex forks its kill by outcome (timeout → immediate SIGKILL; cancel → SIGTERM + 50 ms grace → SIGKILL), whereas the fused signal drives one uniform `kill()` for both, matching Claude Code's unified bash kill. Splitting the kill by `timeoutOf` is possible later if a need appears; there is none now. diff --git a/knip.json b/knip.json index 5e61645458..2e3e101ae1 100644 --- a/knip.json +++ b/knip.json @@ -21,6 +21,11 @@ "project": ["src/**/*.ts"], "ignoreDependencies": ["cordis"] }, + "packages/util/timeout": { + "entry": ["tests/**/*.spec.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"], + "ignoreDependencies": ["cordis"] + }, "packages/llm/llm-deepseek": { "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] diff --git a/packages/bash/bash-local/package.json b/packages/bash/bash-local/package.json index bc1dc7eb40..e3c7ffe33b 100644 --- a/packages/bash/bash-local/package.json +++ b/packages/bash/bash-local/package.json @@ -23,6 +23,7 @@ "license": "BSD-3-Clause", "peerDependencies": { "@deepseek-ai/dsh-bash": "^0.0.1", + "@deepseek-ai/dsh-timeout": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "dependencies": { @@ -30,6 +31,7 @@ }, "devDependencies": { "@deepseek-ai/dsh-bash": "workspace:^", + "@deepseek-ai/dsh-timeout": "workspace:^", "cordis": "^4.0.0-rc.6" } } diff --git a/packages/bash/bash-local/src/index.ts b/packages/bash/bash-local/src/index.ts index cdac3985b8..674f410b50 100644 --- a/packages/bash/bash-local/src/index.ts +++ b/packages/bash/bash-local/src/index.ts @@ -18,6 +18,7 @@ import { Context } from 'cordis' import z from 'schemastery' import { BashExecutor, BashTaskId } from '@deepseek-ai/dsh-bash' import type { BashExecRequest, BashExecSpec, BashRunResult, BashTask, BashTaskRead, OwnerToken } from '@deepseek-ai/dsh-bash' +import { clampTimeout, deadline, timeoutOf } from '@deepseek-ai/dsh-timeout' import { DEFAULT_GRACE_MS, runBash } from './run.ts' import type { RunInternals, RunningBash } from './run.ts' @@ -114,8 +115,12 @@ export class LocalBashExecutor extends BashExecutor { * values and never re-default. */ resolve(request: BashExecRequest): BashExecSpec { - if (request.timeoutMs !== undefined) assertPositiveFinite('request.timeoutMs', request.timeoutMs) - const timeoutMs = Math.min(request.timeoutMs ?? this.config.timeoutMs, this.config.maxTimeoutMs) + const timeoutMs = clampTimeout( + request.timeoutMs, + this.config.timeoutMs, + this.config.maxTimeoutMs, + 'bash-local: request.timeoutMs', + ) return { command: request.command, workdir: request.workdir ?? this.config.cwd ?? process.cwd(), @@ -132,29 +137,38 @@ export class LocalBashExecutor extends BashExecutor { } async run(spec: BashExecSpec): Promise { + // One fused deadline drives both the timeout and upstream cancellation; + // runBash listens on d.signal and runs the SIGTERM→grace→SIGKILL kill. + // `using` clears the timer across the awaited process lifetime. + using d = deadline(spec.signal, spec.timeoutMs, 'BASH_TIMEOUT') const outcome = await runBash({ command: spec.command, cwd: spec.workdir, - timeoutMs: spec.timeoutMs, maxOutputBytes: this.config.maxOutputBytes, graceMs: this.config.graceMs, - signal: spec.signal, + signal: d.signal, stdin: spec.stdin, env: spec.env, }, this.internals).done - return { ...outcome, timeoutMs: spec.timeoutMs } + // Classify the FIRST abort reason: a TimeoutReason means the timeout cut the + // command short; any other abort is upstream cancellation. Mutually + // exclusive by construction — the fused signal reports one cause, not two + // independently-latched facts. + const timedOut = timeoutOf(d.signal) !== undefined + const aborted = d.signal.aborted && !timedOut + return { ...outcome, timedOut, aborted, timeoutMs: spec.timeoutMs } } start(spec: BashExecSpec): BashTask { // No timeout for background tasks (matches Claude Code, which detaches // the timeout when backgrounding); callers stop tasks via kill() — or // via spec.signal, which the seam contract honors for background runs - // too (runBash wires it to the group kill). spec.timeoutMs is ignored - // here by design. + // too (runBash wires it to the group kill). No deadline is created here, + // so spec.timeoutMs is ignored by design — background tasks stay + // timeout-free (see the timeout-library RFC). const running = runBash({ command: spec.command, cwd: spec.workdir, - timeoutMs: 0, maxOutputBytes: this.config.maxOutputBytes, graceMs: this.config.graceMs, signal: spec.signal, @@ -174,8 +188,10 @@ export class LocalBashExecutor extends BashExecutor { stdoutOffset: 0, stderrOffset: 0, done: running.done.then((outcome) => { - // Abort-killed tasks report as killed, not completed. - if (task.status === 'running') task.status = outcome.aborted ? 'killed' : 'completed' + // Abort-killed tasks report as killed, not completed. Background runs + // forward only the upstream signal (no timeout), so its aborted state + // is the authoritative "was this cancelled" signal. + if (task.status === 'running') task.status = spec.signal?.aborted === true ? 'killed' : 'completed' task.exitCode = outcome.exitCode task.signal = outcome.signal this.notifyTaskDone(task) diff --git a/packages/bash/bash-local/src/run.ts b/packages/bash/bash-local/src/run.ts index 489d380787..98ccca19e7 100644 --- a/packages/bash/bash-local/src/run.ts +++ b/packages/bash/bash-local/src/run.ts @@ -6,6 +6,12 @@ * Everything here is deliberately free of Cordis concepts so it can be unit * tested in isolation; `LocalBashExecutor` owns lifecycle and configuration. * + * runBash owns NO timing: it kills the process group when its `spec.signal` + * fires and does not distinguish a timeout from a cancel. The executor fuses + * timeout + upstream cancellation into that one signal via + * `@deepseek-ai/dsh-timeout`'s `deadline`, and classifies the outcome from the + * signal afterward — the timing/classification half is shared, the kill is not. + * * Design notes (surveyed against Claude Code, OpenCode, Codex, and pi — see * the package README): spawn-per-call with `detached: true` so the child * leads its own process group; kills target the group (`kill(-pid)`) so @@ -69,13 +75,17 @@ export function childEnv(extra?: Record): NodeJS.ProcessEnv { export interface SpawnSpec { command: string cwd: string - /** Kill the process group after this many milliseconds. 0 = no timeout. */ - timeoutMs: number /** Per-stream in-memory cap; overflow spills to disk (tail kept in memory). */ maxOutputBytes: number /** Grace period between the SIGTERM and the SIGKILL escalation on a kill. */ graceMs: number - /** Abort signal — kills the process group when fired. */ + /** + * Abort signal — kills the process group when it fires. The executor owns + * timing: `run()` passes a fused timeout/cancel deadline signal (see + * `@deepseek-ai/dsh-timeout`), `start()` passes the bare upstream signal. + * runBash only listens and kills; it does NOT classify why (the executor + * reads the signal's reason afterward). + */ signal?: AbortSignal | undefined /** * Bytes to write to the child's stdin, then close it. Absent (or empty) @@ -92,12 +102,15 @@ export interface SpawnSpec { env?: Record | undefined } -/** Raw outcome of one closed process (before result shaping). */ +/** + * Raw outcome of one closed process (before result shaping). Deliberately + * carries NO timeout/cancel classification: runBash kills on abort but does not + * decide why — the executor's `run()`/`start()` reads the deadline signal it + * owns to classify `timedOut`/`aborted` (see the package README). + */ export interface SpawnOutcome { exitCode: number | null signal: NodeJS.Signals | null - timedOut: boolean - aborted: boolean stdout: CollectedOutput stderr: CollectedOutput } @@ -318,9 +331,6 @@ export function runBash(spec: SpawnSpec, internals: RunInternals = {}): RunningB child.stdout.on('data', (chunk: Buffer) => { stdout.push(chunk) }) child.stderr.on('data', (chunk: Buffer) => { stderr.push(chunk) }) - let timedOut = false - let aborted = false - let killTimer: NodeJS.Timeout | undefined let graceTimer: NodeJS.Timeout | undefined // pid is undefined when the spawn itself fails (bad cwd, missing binary); @@ -333,17 +343,12 @@ export function runBash(spec: SpawnSpec, internals: RunInternals = {}): RunningB graceTimer = setTimeout(() => { killGroup(pid, 'SIGKILL') }, spec.graceMs) } - if (spec.timeoutMs > 0) { - killTimer = setTimeout(() => { - timedOut = true - kill() - }, spec.timeoutMs) - } - - const onAbort = (): void => { - aborted = true - kill() - } + // runBash owns no timer: the executor's `run()` fuses timeout+cancel into one + // deadline signal (`@deepseek-ai/dsh-timeout`) and passes it here; we only + // listen and run the SIGTERM→grace→SIGKILL kill. Whether the abort was a + // timeout or an upstream cancel is classified by the executor from that + // signal, not tracked here. + const onAbort = (): void => { kill() } spec.signal?.addEventListener('abort', onAbort, { once: true }) // Write stdin and close it, but ONLY when the caller supplied bytes — with no @@ -376,14 +381,11 @@ export function runBash(spec: SpawnSpec, internals: RunInternals = {}): RunningB resolve({ exitCode, signal, - timedOut, - aborted, stdout: stdout.finalize(), stderr: stderr.finalize(), }) }) function cleanup(): void { - if (killTimer !== undefined) clearTimeout(killTimer) if (graceTimer !== undefined) clearTimeout(graceTimer) spec.signal?.removeEventListener('abort', onAbort) } diff --git a/packages/bash/bash-local/tests/executor.spec.ts b/packages/bash/bash-local/tests/executor.spec.ts index ce89b2a0ae..fcd06b8bb3 100644 --- a/packages/bash/bash-local/tests/executor.spec.ts +++ b/packages/bash/bash-local/tests/executor.spec.ts @@ -101,6 +101,8 @@ describe('LocalBashExecutor.run', () => { const { bash } = await setup({ timeoutMs: 60_000 }) const result = await bash.run(bash.resolve({ command: 'sleep 60', timeoutMs: 100 })) expect(result.timedOut).toBe(true) + // Mutually exclusive: a timeout classifies as timedOut, never also aborted. + expect(result.aborted).toBe(false) expect(result.timeoutMs).toBe(100) }) @@ -111,6 +113,20 @@ describe('LocalBashExecutor.run', () => { setTimeout(() => { controller.abort() }, 50) const result = await pending expect(result.aborted).toBe(true) + // Mutually exclusive: an upstream cancel classifies as aborted, never also timedOut. + expect(result.timedOut).toBe(false) + }) + + it('classifies a self-killed command as neither timed out nor aborted', async () => { + // The command kills itself (SIGTERM) with no timeout and no upstream abort: + // the deadline signal never fires, so both classifications are false — the + // fused-signal classification reports the cause that cut the command short, + // and here nothing the executor owns did. + const { bash } = await setup({ timeoutMs: 60_000 }) + const result = await bash.run(bash.resolve({ command: 'kill -TERM $$' })) + expect(result.signal).toBe('SIGTERM') + expect(result.timedOut).toBe(false) + expect(result.aborted).toBe(false) }) it('rejects on spawn failure (bad workdir)', async () => { diff --git a/packages/bash/bash-local/tests/run.spec.ts b/packages/bash/bash-local/tests/run.spec.ts index d2888e2fee..1103637b92 100644 --- a/packages/bash/bash-local/tests/run.spec.ts +++ b/packages/bash/bash-local/tests/run.spec.ts @@ -26,7 +26,6 @@ function spec(command: string, overrides: Partial[0]> return { command, cwd: process.cwd(), - timeoutMs: 0, maxOutputBytes: 64_000, graceMs: 3_000, ...overrides, @@ -61,8 +60,6 @@ describe('runBash', () => { const result = await runBash(spec('echo hello')).done expect(result.exitCode).toBe(0) expect(result.signal).toBeNull() - expect(result.timedOut).toBe(false) - expect(result.aborted).toBe(false) expect(result.stdout.text).toBe('hello\n') expect(result.stdout.truncated).toBe(false) expect(result.stderr.text).toBe('') @@ -97,11 +94,16 @@ describe('runBash', () => { expect(result.stdout.text.trim()).toMatch(/\/tmp$/) }) - it('kills with SIGTERM on timeout', async () => { + it('kills the process group with SIGTERM when the signal fires', async () => { + // runBash owns no timer: it kills on abort. The executor drives the timeout + // by firing this signal via a deadline (see executor.spec.ts); here we + // assert the kill itself lands as SIGTERM. + const controller = new AbortController() const start = Date.now() - const result = await runBash(spec('sleep 60', { timeoutMs: 100 })).done + const running = runBash(spec('sleep 60', { signal: controller.signal })) + setTimeout(() => { controller.abort('deadline') }, 100) + const result = await running.done expect(Date.now() - start).toBeLessThan(5_000) - expect(result.timedOut).toBe(true) expect(result.signal).toBe('SIGTERM') expect(result.exitCode).toBeNull() }) @@ -134,7 +136,6 @@ describe('runBash', () => { const running = runBash(spec('sleep 60', { signal: controller.signal })) setTimeout(() => { controller.abort('user cancelled') }, 50) const result = await running.done - expect(result.aborted).toBe(true) expect(result.signal).toBe('SIGTERM') }) @@ -211,7 +212,6 @@ describe('stdin and extra env (set by in-process plugins)', () => { const big = 'x'.repeat(1024 * 1024) const result = await runBash(spec('exit 7', { stdin: big })).done expect(result.exitCode).toBe(7) - expect(result.aborted).toBe(false) }) }) @@ -339,11 +339,11 @@ describe('abort edge cases', () => { .toThrow(/aborted before spawn: aborted/) }) - it('reports an externally self-killed command without the timeout marker', async () => { + it('reports the terminating signal of an externally self-killed command', async () => { + // runBash reports the raw signal; whether it counts as timeout/cancel is the + // executor's classification (a self-kill is neither) — see executor.spec.ts. const result = await runBash(spec('kill -TERM $$')).done expect(result.signal).toBe('SIGTERM') - expect(result.timedOut).toBe(false) - expect(result.aborted).toBe(false) }) }) @@ -396,10 +396,9 @@ describe('review fixes: env scrubbing and spill hardening', () => { it('honors AbortSignal on background-style runs (no timeout)', async () => { const controller = new AbortController() - const running = runBash(spec('sleep 60', { timeoutMs: 0, signal: controller.signal })) + const running = runBash(spec('sleep 60', { signal: controller.signal })) setTimeout(() => { controller.abort() }, 50) const result = await running.done - expect(result.aborted).toBe(true) expect(result.signal).toBe('SIGTERM') }) }) diff --git a/packages/bash/bash-local/tsconfig.json b/packages/bash/bash-local/tsconfig.json index ae31546543..02448770f4 100644 --- a/packages/bash/bash-local/tsconfig.json +++ b/packages/bash/bash-local/tsconfig.json @@ -20,6 +20,9 @@ { "path": "../../util/brand" }, + { + "path": "../../util/timeout" + }, { "path": "../../bash/bash" } diff --git a/packages/fs/README.md b/packages/fs/README.md index 985a9f3ad6..04f979b59f 100644 --- a/packages/fs/README.md +++ b/packages/fs/README.md @@ -10,3 +10,8 @@ The filesystem stack: a provider seam (text IO + atomic mutation with an optiona | `tool-fs/` | Model-facing `read`/`write`/`edit` tools AND the executor (reads via `ctx.fs`, owns read windowing, dispatches `fs/*`) | (registers on `ctx.tools`) | The interface lives at `fs/fs/`. A sandboxed, remote, or project-scoped filesystem backend can replace `fs-local` without touching the seam, the policy gate, or the model-facing tool schemas. The policy (`fs-policy/`) is a plugin that participates only through the `fs/*` event gate, not a service the tool injects — so dropping it gracefully loses the policy and leaves the unconstrained bare provider rather than breaking the tool. A deployment that loads `tool-fs/` is expected to also load it. + +## No timeouts on file IO + +`read`/`write`/`edit` take **no** `timeoutMs`, and the provider seam arms no deadline — unlike bash and web, which consume [`@deepseek-ai/dsh-timeout`](../util/timeout/README.md). A local syscall is best-effort-abortable at most: a timeout could not force an in-progress `fsync`/`rename` to stop, so a deadline here would be a knob that cannot deliver on its promise. Adding one would also be an implicit default in the exact place explicit-over-implicit forbids. Both reference agents (Claude Code, Codex) leave file IO untimed for the same reason; cancellation still propagates through the tool-execution signal for best-effort abort at syscall boundaries. + diff --git a/packages/util/README.md b/packages/util/README.md index ae73c8125f..45afe7b0a9 100644 --- a/packages/util/README.md +++ b/packages/util/README.md @@ -5,5 +5,8 @@ Zero-dependency primitives shared across the other groups. A package lands here | Package | Role | |---|---| | `brand/` | The type-only `Branded` nominal-typing primitive (no runtime code, no harness deps) | +| `timeout/` | The timing/classification half of a timeout — `clampTimeout`/`deadline`/`timeoutOf`/`TimeoutReason` (pure functions, no harness deps); termination stays in each capability | `dsh-brand` is the canonical case: it owns ONLY the `Branded` helper, so a capability package can brand the ids it owns (`dsh-bash`'s `BashTaskId`/`OwnerToken`, `dsh-session`'s `SessionId`, …) by depending on `dsh-brand` alone, without pulling in an unrelated package just to reach `Branded`. + +`dsh-timeout` follows the same shape for the timeout family: `dsh-bash` and `dsh-web-fetch-local` each fuse a caller's cancellation with a deadline and later classify "timed out" vs "cancelled" by depending on `dsh-timeout` alone. It deliberately owns only the timing/classification half — the *termination* (SIGKILL a process group, tear down a fetch socket) stays in each capability, because no shared layer can own every capability's kill (see [the timeout-library RFC](../../docs/rfc/implemented/architecture/2026-07-06-timeout-deadline-library.md)). diff --git a/packages/util/timeout/README.md b/packages/util/timeout/README.md new file mode 100644 index 0000000000..4aa4485108 --- /dev/null +++ b/packages/util/timeout/README.md @@ -0,0 +1,40 @@ +# dsh-timeout + +The **timing-and-classification** half of a timeout — a zero-dependency library of pure functions (no runtime harness deps) shared by every capability that clamps a caller's timeout hint, arms a deadline, and later has to tell "timed out" apart from "cancelled". + +It owns **no termination**. The signal it hands out only *notifies*; actually stopping the work stays in each capability, because that mechanism differs — bash SIGKILLs an OS process group, web tears down a `fetch` socket — and no shared layer can own all of them. This is the boundary the [RFC](../../../docs/rfc/implemented/architecture/2026-07-06-timeout-deadline-library.md) draws: share the timing/classification, keep the hard kill local. + +It is a **library, not a service or plugin**: no `ctx`, registers nothing, holds no state, emits no events. A "timeout service" would have to understand how to stop every capability's work — exactly the knowledge a microkernel keeps out of shared layers. + +## Surface + +```ts +import { clampTimeout, deadline, timeoutOf, TimeoutReason } from '@deepseek-ai/dsh-timeout' +``` + +| Export | Role | +|---|---| +| `clampTimeout(requested, def, max, name?)` | Validate the caller's optional positive-finite hint, fill from `def`, cap at `max`. Throws (with `name`) on a non-positive/non-finite hint. | +| `deadline(upstream, timeoutMs, code)` | Fuse `upstream` cancellation with a timeout into one `AbortSignal` (`AbortSignal.any`); the timeout carries a `TimeoutReason`. `[Symbol.dispose]` clears the timer. | +| `timeoutOf(signal \| { reason })` | Recover the `TimeoutReason` from an aborted signal/error, else `undefined` — the timeout-vs-cancel classifier. | +| `TimeoutReason` | The internal reason (`code` + `timeoutMs`) stamped on a timeout abort. Not a public error — providers translate it into their own error/field. | + +## The `timeoutMs <= 0` sentinel + +`0` is the **internal** "no timeout" value for backend-owned background work (bash `start()`): `deadline()` arms no timer and forwards only `upstream`; with no upstream either, it returns a never-aborting signal plus a no-op disposer, so every caller keeps one call shape. External request hints validate as **positive finite** via `clampTimeout` before they reach `deadline`, so `0` is never a model-/plugin-facing "disable timeout" value. + +## Usage shape + +```ts ignore-check +// Scope-lifetime consumer (foreground bash, one fetch): `using` disposes the timer. +using d = deadline(upstream, timeoutMs, 'BASH_TIMEOUT') +const outcome = await runWork({ signal: d.signal }) // work listens on d.signal and terminates itself +const timedOut = timeoutOf(d.signal) !== undefined // classify the first abort +const aborted = d.signal.aborted && !timedOut // mutually exclusive: timeout won, or cancel did +``` + +The signal only *notifies* — the caller MUST attach its own termination (`d.signal.addEventListener('abort', kill)`, or hand `d.signal` to `fetch`). Racing a promise against a timer would resolve the tool-call while the child process or socket leaks on; handing out a signal forces a real termination path to exist. + +## What does NOT get a timeout + +Local file `read`/`write`/`edit` take no `timeoutMs`: a syscall is best-effort-abortable at most, a timeout could not force `fsync`/`rename` to stop, and adding one would be an implicit default that violates explicit-over-implicit. See [`fs/`](../../fs/README.md). diff --git a/packages/util/timeout/package.json b/packages/util/timeout/package.json new file mode 100644 index 0000000000..150a155324 --- /dev/null +++ b/packages/util/timeout/package.json @@ -0,0 +1,30 @@ +{ + "name": "@deepseek-ai/dsh-timeout", + "description": "Zero-dependency timeout/deadline primitive: clampTimeout, deadline, timeoutOf, TimeoutReason (timing + classification only, no termination)", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "cordis": "^4.0.0-rc.6" + }, + "devDependencies": { + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/util/timeout/src/index.ts b/packages/util/timeout/src/index.ts new file mode 100644 index 0000000000..dbfc76adb4 --- /dev/null +++ b/packages/util/timeout/src/index.ts @@ -0,0 +1,149 @@ +/** + * The timing-and-classification half of a timeout — a zero-dependency library + * of pure functions shared by every capability that clamps a caller's timeout + * hint, arms a deadline, and later has to tell "timed out" apart from + * "cancelled". It owns NO termination: the returned {@link deadline} signal only + * NOTIFIES; actually stopping the work (SIGKILL a process group, tear down a + * fetch socket, …) stays in each capability's implementation, because that + * mechanism differs per capability and no shared layer can own all of them. + * + * This is deliberately a library, not a cordis service or plugin: it takes no + * `ctx`, registers nothing, holds no cross-call state, and emits no events. A + * "timeout service" would have to understand how to stop every capability's + * work — exactly the knowledge a microkernel keeps out of shared layers. + * + * The four exports and their division of labor: + * - {@link clampTimeout} — validate a caller's optional positive hint, fill the + * backend default, cap at the backend max (pure arithmetic + the shared + * positive-finite request contract). + * - {@link deadline} — fuse upstream cancellation with a timeout into one + * `AbortSignal`, the timeout carrying an identifiable {@link TimeoutReason}; + * `[Symbol.dispose]` clears the timer. + * - {@link timeoutOf} — classify an aborted signal (or error): a + * {@link TimeoutReason} means the timeout fired, anything else (or nothing) + * means it did not. + * - {@link TimeoutReason} — the internal classification reason; providers + * translate it into their own public error/result shape before returning. + * + * @module @deepseek-ai/dsh-timeout + */ + +/** + * The internal reason attached to a timeout abort so consumers can classify it + * after the fact. It carries the failing `code` (each capability's own string — + * `BASH_TIMEOUT`, `WEB_FETCH_TIMEOUT`, …) and the `timeoutMs` that elapsed. + * + * It is an INTERNAL classification reason, not a public error: providers + * translate it into their seam-specific error code or result field (via + * {@link timeoutOf}) before returning to callers. Native `AbortSignal.timeout()` + * yields a fixed `TimeoutError` indistinguishable across timeout kinds; this + * type is identifiable and carries the code/duration. + */ +export class TimeoutReason extends Error { + override name = 'TimeoutReason' + + /** + * @param code Capability-owned timeout code (e.g. `BASH_TIMEOUT`). + * @param timeoutMs The deadline that elapsed, in milliseconds. + */ + constructor(readonly code: string, readonly timeoutMs: number) { + super(`${code} after ${timeoutMs}ms`) + } +} + +/** + * Validate a caller's optional timeout hint, fill it from the backend default, + * then cap at the backend max. The shared positive-finite request contract: + * a supplied `requested` must be a positive finite number or this throws — + * `0` is NOT a caller-facing "disable timeout" value (that sentinel is internal + * to {@link deadline}). A missing `requested` falls back to `def`. + * + * @param requested The caller's optional hint; validated when present. + * @param def The backend default applied when `requested` is absent. + * @param max The backend upper bound the result is capped to. + * @param name Field name used in the thrown message (so the caller sees which input was bad). + * @returns The effective timeout in milliseconds: `min(requested ?? def, max)`. + */ +export function clampTimeout( + requested: number | undefined, + def: number, + max: number, + name = 'timeoutMs', +): number { + if (requested !== undefined && (!Number.isFinite(requested) || requested <= 0)) { + throw new Error(`${name} must be a positive finite number`) + } + return Math.min(requested ?? def, max) +} + +/** A deadline signal plus the cleanup that clears its timer (dispose-once). */ +export interface Deadline { + /** Aborts on upstream cancellation OR on timeout (the timeout carries a {@link TimeoutReason}). */ + readonly signal: AbortSignal + /** Clear the timer. Safe to call once; `using` calls it at scope exit. */ + [Symbol.dispose](): void +} + +/** + * Build a deadline signal that aborts on upstream cancellation OR on timeout, + * with the timeout carrying an identifiable {@link TimeoutReason} (unlike + * native `AbortSignal.timeout()`, whose fixed `TimeoutError` is opaque). It is + * `AbortSignal.any([upstream, ])` — the single primitive that fuses + * two abort sources — with the reason and a disposable timer added on top. + * + * `timeoutMs <= 0` is the INTERNAL "no timeout" sentinel for backend-owned + * background work: arm no timer and forward only the upstream signal; with no + * upstream either, return a never-aborting signal so callers keep one call + * shape. External request hints validate as positive finite via + * {@link clampTimeout} before reaching here, so `0` never arrives from a model + * or plugin. + * + * The returned object's `[Symbol.dispose]` clears the timer — use `using` for a + * scope-lifetime consumer, or call it manually for an event-lifetime one. The + * signal only NOTIFIES; the caller must attach its own termination (kill the + * process group, abort the fetch, …). + * + * @param upstream The caller's cancellation signal, if any, fused into the result. + * @param timeoutMs Deadline in milliseconds; `<= 0` means "no timeout" (arm no timer). + * @param code Capability-owned code stamped onto the timeout's {@link TimeoutReason}. + * @returns The fused {@link Deadline} (signal + timer cleanup). + */ +export function deadline( + upstream: AbortSignal | undefined, + timeoutMs: number, + code: string, +): Deadline { + if (timeoutMs <= 0) { + // No timeout (background work): forward only the upstream signal, or a + // never-aborting one when there is no upstream. No timer, so dispose is a + // no-op — the empty method keeps the one call shape for every caller. + return { signal: upstream ?? new AbortController().signal, [Symbol.dispose]() {} } + } + + const timer = new AbortController() + const id = setTimeout(() => { timer.abort(new TimeoutReason(code, timeoutMs)) }, timeoutMs) + return { + // AbortSignal.any adopts the reason of whichever source aborts FIRST, so a + // race resolves to a single cause: timeoutOf() reads TimeoutReason only + // when the timeout won, and upstream-wins leaves an ordinary abort reason. + signal: upstream !== undefined ? AbortSignal.any([upstream, timer.signal]) : timer.signal, + [Symbol.dispose]() { clearTimeout(id) }, + } +} + +/** + * Recover the {@link TimeoutReason} from an aborted signal (or any object with a + * `reason`), else `undefined`. This is the classification half: a provider + * calls it on the deadline signal after an abort to decide whether the cause + * was its timeout (translate to the capability's timeout error/field) or an + * ordinary upstream cancellation (`undefined` → the cancel path). + * + * @param x An {@link AbortSignal} or any `{ reason }` carrier (e.g. a caught abort error). + * @returns The {@link TimeoutReason} when the abort was a timeout, else `undefined`. + */ +export function timeoutOf(x: AbortSignal | { reason?: unknown }): TimeoutReason | undefined { + // AbortSignal.reason is typed `any`; pin it to `unknown` so no `any` leaks and + // the instanceof narrows cleanly for both a signal and a bare reason carrier. + const reason: unknown = x.reason + return reason instanceof TimeoutReason ? reason : undefined +} diff --git a/packages/util/timeout/tests/timeout.spec.ts b/packages/util/timeout/tests/timeout.spec.ts new file mode 100644 index 0000000000..4e60cf35b7 --- /dev/null +++ b/packages/util/timeout/tests/timeout.spec.ts @@ -0,0 +1,160 @@ +import { afterEach, describe, expect, it, vi } from 'vitest' +import { clampTimeout, deadline, timeoutOf, TimeoutReason } from '@deepseek-ai/dsh-timeout' + +describe('TimeoutReason', () => { + it('is an Error carrying the code and elapsed ms', () => { + const reason = new TimeoutReason('BASH_TIMEOUT', 100) + expect(reason).toBeInstanceOf(Error) + expect(reason.name).toBe('TimeoutReason') + expect(reason.code).toBe('BASH_TIMEOUT') + expect(reason.timeoutMs).toBe(100) + expect(reason.message).toBe('BASH_TIMEOUT after 100ms') + }) +}) + +describe('clampTimeout', () => { + it('fills the default when the hint is absent', () => { + expect(clampTimeout(undefined, 120_000, 600_000)).toBe(120_000) + }) + + it('caps the hint at max', () => { + expect(clampTimeout(999_999, 120_000, 600_000)).toBe(600_000) + }) + + it('keeps a valid hint under the cap', () => { + expect(clampTimeout(5_000, 120_000, 600_000)).toBe(5_000) + }) + + it('caps the default itself when the default exceeds max', () => { + // min(def, max) applies even with no hint — a misconfigured backend never + // exceeds its own cap. + expect(clampTimeout(undefined, 900_000, 600_000)).toBe(600_000) + }) + + it('rejects a non-finite hint with the caller-provided name', () => { + expect(() => clampTimeout(Number.NaN, 100, 200, 'bash-local: request.timeoutMs')) + .toThrow(/bash-local: request\.timeoutMs must be a positive finite number/) + expect(() => clampTimeout(Number.POSITIVE_INFINITY, 100, 200)) + .toThrow(/timeoutMs must be a positive finite number/) + }) + + it('rejects a non-positive hint', () => { + expect(() => clampTimeout(0, 100, 200)).toThrow(/must be a positive finite number/) + expect(() => clampTimeout(-1, 100, 200)).toThrow(/must be a positive finite number/) + }) +}) + +describe('deadline — timeout arm', () => { + afterEach(() => { vi.useRealTimers() }) + + it('aborts on timeout with a TimeoutReason after the elapsed ms', () => { + vi.useFakeTimers() + using d = deadline(undefined, 100, 'BASH_TIMEOUT') + expect(d.signal.aborted).toBe(false) + vi.advanceTimersByTime(100) + expect(d.signal.aborted).toBe(true) + const reason = timeoutOf(d.signal) + expect(reason).toBeInstanceOf(TimeoutReason) + expect(reason?.code).toBe('BASH_TIMEOUT') + expect(reason?.timeoutMs).toBe(100) + }) + + it('[Symbol.dispose] clears the timer so no abort fires afterward', () => { + vi.useFakeTimers() + const d = deadline(undefined, 100, 'BASH_TIMEOUT') + d[Symbol.dispose]() + vi.advanceTimersByTime(1_000) + expect(d.signal.aborted).toBe(false) + expect(timeoutOf(d.signal)).toBeUndefined() + }) +}) + +describe('deadline — fuse with upstream', () => { + it('aborts on upstream cancellation, classified as NOT a timeout', () => { + const upstream = new AbortController() + using d = deadline(upstream.signal, 60_000, 'BASH_TIMEOUT') + upstream.abort('user cancelled') + expect(d.signal.aborted).toBe(true) + expect(timeoutOf(d.signal)).toBeUndefined() + }) + + it('cancel wins when it fires before the timeout', () => { + vi.useFakeTimers() + try { + const upstream = new AbortController() + using d = deadline(upstream.signal, 100, 'BASH_TIMEOUT') + upstream.abort('user cancelled') // fires first, before the 100ms timer + vi.advanceTimersByTime(200) + expect(d.signal.aborted).toBe(true) + // AbortSignal.any adopts the FIRST source's reason: cancel won, so no + // TimeoutReason even though the timer later elapsed. + expect(timeoutOf(d.signal)).toBeUndefined() + } finally { + vi.useRealTimers() + } + }) + + it('timeout wins when it fires before upstream cancellation', () => { + vi.useFakeTimers() + try { + const upstream = new AbortController() + using d = deadline(upstream.signal, 100, 'WEB_FETCH_TIMEOUT') + vi.advanceTimersByTime(100) // timer fires first + upstream.abort('too late') + expect(timeoutOf(d.signal)?.code).toBe('WEB_FETCH_TIMEOUT') + } finally { + vi.useRealTimers() + } + }) + + it('forwards a pre-aborted upstream signal immediately', () => { + const upstream = new AbortController() + upstream.abort('already gone') + using d = deadline(upstream.signal, 60_000, 'BASH_TIMEOUT') + expect(d.signal.aborted).toBe(true) + expect(timeoutOf(d.signal)).toBeUndefined() + }) +}) + +describe('deadline — timeoutMs <= 0 (no-timeout sentinel)', () => { + afterEach(() => { vi.useRealTimers() }) + + it('arms no timer and forwards only the upstream signal', () => { + vi.useFakeTimers() + const upstream = new AbortController() + using d = deadline(upstream.signal, 0, 'BASH_TIMEOUT') + vi.advanceTimersByTime(1_000_000) + expect(d.signal.aborted).toBe(false) // no timer ever armed + upstream.abort('kill') + expect(d.signal.aborted).toBe(true) + expect(timeoutOf(d.signal)).toBeUndefined() // never a timeout + }) + + it('returns a never-aborting signal with a no-op disposer when there is no upstream', () => { + vi.useFakeTimers() + const d = deadline(undefined, 0, 'BASH_TIMEOUT') + expect(() => { d[Symbol.dispose]() }).not.toThrow() + vi.advanceTimersByTime(1_000_000) + expect(d.signal.aborted).toBe(false) + expect(timeoutOf(d.signal)).toBeUndefined() + }) + + it('treats a negative timeout the same as zero', () => { + const d = deadline(undefined, -5, 'BASH_TIMEOUT') + expect(d.signal.aborted).toBe(false) + d[Symbol.dispose]() + }) +}) + +describe('timeoutOf', () => { + it('classifies a bare reason carrier that holds a TimeoutReason', () => { + const reason = new TimeoutReason('WEB_FETCH_TIMEOUT', 50) + expect(timeoutOf({ reason })).toBe(reason) + }) + + it('returns undefined for a non-timeout reason', () => { + expect(timeoutOf({ reason: new Error('other') })).toBeUndefined() + expect(timeoutOf({ reason: 'user cancelled' })).toBeUndefined() + expect(timeoutOf({})).toBeUndefined() + }) +}) diff --git a/packages/util/timeout/tsconfig.json b/packages/util/timeout/tsconfig.json new file mode 100644 index 0000000000..749cb0208e --- /dev/null +++ b/packages/util/timeout/tsconfig.json @@ -0,0 +1,11 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [] +} diff --git a/packages/web/web-fetch-local/package.json b/packages/web/web-fetch-local/package.json index 8d9a599a52..9b847db6f3 100644 --- a/packages/web/web-fetch-local/package.json +++ b/packages/web/web-fetch-local/package.json @@ -22,6 +22,7 @@ ], "license": "BSD-3-Clause", "peerDependencies": { + "@deepseek-ai/dsh-timeout": "^0.0.1", "@deepseek-ai/dsh-web": "^0.0.1", "cordis": "^4.0.0-rc.6" }, @@ -29,6 +30,7 @@ "schemastery": "^3.18.0" }, "devDependencies": { + "@deepseek-ai/dsh-timeout": "workspace:^", "@deepseek-ai/dsh-web": "workspace:^", "cordis": "^4.0.0-rc.6" } diff --git a/packages/web/web-fetch-local/src/provider.ts b/packages/web/web-fetch-local/src/provider.ts index 29b183b710..53fc57f621 100644 --- a/packages/web/web-fetch-local/src/provider.ts +++ b/packages/web/web-fetch-local/src/provider.ts @@ -21,6 +21,7 @@ import { WebError } from '@deepseek-ai/dsh-web' import type { WebFetchBody, WebFetchProvider, WebFetchRequest, WebFetchResult, WebProviderStatus } from '@deepseek-ai/dsh-web' +import { clampTimeout, deadline, timeoutOf } from '@deepseek-ai/dsh-timeout' import { classifyContentType, decoderForCharset, isSameOrigin, parseCharset, validateFetchUrl } from './policy.ts' /** Resolved provider limits (the plugin's schemastery Config supplies defaults). */ @@ -56,35 +57,25 @@ export class LocalFetchProvider implements WebFetchProvider { } async fetch(request: WebFetchRequest, exec?: { readonly signal?: AbortSignal }): Promise { - const timeoutMs = request.timeoutMs !== undefined - ? Math.min(request.timeoutMs, this.limits.maxTimeoutMs) - : this.limits.timeoutMs + if (exec?.signal?.aborted) throw new WebError('web fetch aborted', 'WEB_ABORTED') + const timeoutMs = clampTimeout(request.timeoutMs, this.limits.timeoutMs, this.limits.maxTimeoutMs) - // One controller drives both the caller's abort and our own timeout, so the - // network request and the streaming read both stop on either. - const controller = new AbortController() - const onAbort = (): void => { controller.abort() } - if (exec?.signal !== undefined) { - if (exec.signal.aborted) throw new WebError('web fetch aborted', 'WEB_ABORTED') - exec.signal.addEventListener('abort', onAbort, { once: true }) - } - const timer = setTimeout(() => { controller.abort(new WebError('web fetch timed out', 'WEB_FETCH_TIMEOUT')) }, timeoutMs) - - try { - return await this.followAndRead(request.url, controller) - } finally { - clearTimeout(timer) - if (exec?.signal !== undefined) exec.signal.removeEventListener('abort', onAbort) - } + // One deadline signal fuses the caller's abort with our own timeout, so the + // network request and the streaming read both stop on either. The timeout + // abort carries a TimeoutReason we recover afterward to classify the cause + // (translateAbortOrNetwork), instead of hand-rolling a controller + timer + + // reason-recovery dance. + using d = deadline(exec?.signal, timeoutMs, 'WEB_FETCH_TIMEOUT') + return await this.followAndRead(request.url, d.signal) } /** Follow same-origin redirects up to the hop cap, then read the final response. */ - private async followAndRead(initialUrl: string, controller: AbortController): Promise { + private async followAndRead(initialUrl: string, signal: AbortSignal): Promise { let currentUrl = validateFetchUrl(initialUrl, this.limits.maxUrlLength) let redirectsFollowed = 0 for (;;) { - const response = await this.requestOnce(currentUrl, controller) + const response = await this.requestOnce(currentUrl, signal) if (isRedirectStatus(response.status)) { // The redirect budget is enforced BEFORE this hop's target is resolved @@ -127,20 +118,20 @@ export class LocalFetchProvider implements WebFetchProvider { continue } - return await this.readBody(response, currentUrl, controller.signal) + return await this.readBody(response, currentUrl, signal) } } - private async requestOnce(url: URL, controller: AbortController): Promise { + private async requestOnce(url: URL, signal: AbortSignal): Promise { try { return await fetch(url, { method: 'GET', redirect: 'manual', headers: { 'user-agent': this.limits.userAgent, 'accept': 'text/html,application/xhtml+xml,text/*;q=0.9,application/json;q=0.8' }, - signal: controller.signal, + signal, }) } catch (error: unknown) { - throw translateAbortOrNetwork(error, controller.signal) + throw translateAbortOrNetwork(error, signal) } } @@ -255,24 +246,17 @@ function resolveRedirect(location: string, base: URL): URL { } /** - * Translate a thrown fetch/stream error into a `WebError`. Our own - * `WEB_FETCH_TIMEOUT` (passed to `controller.abort(reason)`) and any other - * already-typed `WebError` pass through; an `AbortError` becomes `WEB_ABORTED`, - * UNLESS the abort was our timeout — the body-read reader surfaces a generic - * `AbortError` rather than the abort reason, so we recover the timeout's - * `WebError` from `signal.reason`; anything else is a transport/network failure - * (`WEB_PROVIDER_ERROR`). + * Translate a thrown fetch/stream error into a `WebError`, classified by the + * deadline signal rather than the error's shape (which differs by phase: the + * request-phase `fetch` rejects with the abort reason, while the read-phase + * reader surfaces a bare `AbortError`). `timeoutOf(signal)` recovering a + * `TimeoutReason` means our timeout fired (`WEB_FETCH_TIMEOUT`); any other abort + * is upstream cancellation (`WEB_ABORTED`); a throw with the signal NOT aborted + * is a transport/network failure (`WEB_PROVIDER_ERROR`). */ -function translateAbortOrNetwork(error: unknown, signal?: AbortSignal): WebError { - if (error instanceof WebError) return error - if (error instanceof DOMException && error.name === 'AbortError') { - // A timeout abort carries its WebError as the signal reason; honor the - // WEB_FETCH_TIMEOUT contract instead of reporting a generic cancellation. - // (Node rejects WITH the reason — the WebError branch above — so this only - // fires on a runtime that surfaces a bare AbortError while reason is set.) - /* v8 ignore next */ - if (signal?.reason instanceof WebError) return signal.reason - return new WebError('web fetch aborted', 'WEB_ABORTED', { cause: error }) - } +function translateAbortOrNetwork(error: unknown, signal: AbortSignal): WebError { + const timeout = timeoutOf(signal) + if (timeout !== undefined) return new WebError('web fetch timed out', 'WEB_FETCH_TIMEOUT', { cause: timeout }) + if (signal.aborted) return new WebError('web fetch aborted', 'WEB_ABORTED', { cause: error }) return new WebError(`web fetch failed: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) } diff --git a/packages/web/web-fetch-local/tsconfig.json b/packages/web/web-fetch-local/tsconfig.json index aa7c949fec..c6fb75a5c1 100644 --- a/packages/web/web-fetch-local/tsconfig.json +++ b/packages/web/web-fetch-local/tsconfig.json @@ -17,6 +17,9 @@ { "path": "../../../vendor/schemastery" }, + { + "path": "../../util/timeout" + }, { "path": "../web" } diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index d5fb68c746..54050bd0f4 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -93,6 +93,9 @@ importers: '@deepseek-ai/dsh-bash': specifier: workspace:^ version: link:../bash + '@deepseek-ai/dsh-timeout': + specifier: workspace:^ + version: link:../../util/timeout cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -960,6 +963,12 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/util/timeout: + devDependencies: + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/web/tool-web: dependencies: schemastery: @@ -1013,6 +1022,9 @@ importers: specifier: ^3.18.0 version: 3.18.0 devDependencies: + '@deepseek-ai/dsh-timeout': + specifier: workspace:^ + version: link:../../util/timeout '@deepseek-ai/dsh-web': specifier: workspace:^ version: link:../web diff --git a/tsconfig.build.json b/tsconfig.build.json index b6ba7901f2..ebf8ffef14 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -11,6 +11,7 @@ { "path": "./vendor/hmr" }, { "path": "./vendor/logger-console" }, { "path": "./packages/util/brand" }, + { "path": "./packages/util/timeout" }, { "path": "./packages/llm/llm" }, { "path": "./packages/core/session" }, { "path": "./packages/session-persistence/session-persistence" }, diff --git a/tsconfig.json b/tsconfig.json index 9cd7aa8a6d..49cce594dd 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -22,6 +22,7 @@ { "path": "./vendor/hmr" }, { "path": "./vendor/logger-console" }, { "path": "./packages/util/brand" }, + { "path": "./packages/util/timeout" }, { "path": "./packages/llm/llm" }, { "path": "./packages/core/session" }, { "path": "./packages/session-persistence/session-persistence" }, From b4ba84a1a941add356982419c6c8eeaaa30f371f Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Mon, 6 Jul 2026 16:46:14 +0800 Subject: [PATCH 031/232] fix: drop trailing blank line in fs README (codex review round 1) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Round 1 P3: the "No timeouts on file IO" section left the file ending in a blank line, which the trailing-newline whitespace gate rejects. Declined P2 (late abort after a timeout is lost): that is the RFC's decided trade-off — mutually-exclusive first-abort classification — and re-latching aborted would violate the acceptance criterion. --- packages/fs/README.md | 1 - 1 file changed, 1 deletion(-) diff --git a/packages/fs/README.md b/packages/fs/README.md index 04f979b59f..ec3bb62afb 100644 --- a/packages/fs/README.md +++ b/packages/fs/README.md @@ -14,4 +14,3 @@ The interface lives at `fs/fs/`. A sandboxed, remote, or project-scoped filesyst ## No timeouts on file IO `read`/`write`/`edit` take **no** `timeoutMs`, and the provider seam arms no deadline — unlike bash and web, which consume [`@deepseek-ai/dsh-timeout`](../util/timeout/README.md). A local syscall is best-effort-abortable at most: a timeout could not force an in-progress `fsync`/`rename` to stop, so a deadline here would be a knob that cannot deliver on its promise. Adding one would also be an implicit default in the exact place explicit-over-implicit forbids. Both reference agents (Claude Code, Codex) leave file IO untimed for the same reason; cancellation still propagates through the tool-execution signal for best-effort abort at syscall boundaries. - From 760bc9aa6a9d3517f6c3e90a910da653652826ce Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Mon, 6 Jul 2026 17:07:11 +0800 Subject: [PATCH 032/232] fix: scope timeoutOf by deadline code so nesting composes (codex round 2) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Round 2 P2: timeoutOf() accepted ANY TimeoutReason, so under nesting — when the upstream handed to deadline() is itself a deadline (the RFC's named tools/execute middleware follow-up) and its outer timer fires first — AbortSignal.any preserves the outer reason and the inner bash/web would report the outer timeout as their own (timedOut / WEB_FETCH_TIMEOUT) though their local timer never expired. Add an optional code to timeoutOf; bash and web pass their own code, so a foreign timeout falls through to the upstream-cancel path. --- .../2026-07-06-timeout-deadline-library.md | 8 +++---- packages/bash/bash-local/src/index.ts | 11 +++++----- packages/util/timeout/README.md | 10 +++++---- packages/util/timeout/src/index.ts | 19 ++++++++++++++--- packages/util/timeout/tests/timeout.spec.ts | 21 +++++++++++++++++++ packages/web/web-fetch-local/src/provider.ts | 11 +++++----- 6 files changed, 59 insertions(+), 21 deletions(-) diff --git a/docs/rfc/implemented/architecture/2026-07-06-timeout-deadline-library.md b/docs/rfc/implemented/architecture/2026-07-06-timeout-deadline-library.md index 84fc5b3ea2..4902a0e833 100644 --- a/docs/rfc/implemented/architecture/2026-07-06-timeout-deadline-library.md +++ b/docs/rfc/implemented/architecture/2026-07-06-timeout-deadline-library.md @@ -53,11 +53,11 @@ export function deadline( code: string, ): { signal: AbortSignal; [Symbol.dispose](): void } -/** Recover the TimeoutReason from an aborted signal (or error), else undefined. */ -export function timeoutOf(x: AbortSignal | { reason?: unknown }): TimeoutReason | undefined +/** Recover the TimeoutReason from an aborted signal (or error); `code` scopes the match to this deadline's timer. */ +export function timeoutOf(x: AbortSignal | { reason?: unknown }, code?: string): TimeoutReason | undefined ``` -`deadline` is `AbortSignal.any([upstream, ])` with three things the standard library does not give: a typed, identifiable `TimeoutReason` on the timeout abort (native `AbortSignal.timeout()` yields a fixed `TimeoutError`, indistinguishable across timeout kinds), an internal `timeoutMs <= 0` "no timeout" sentinel for backend-owned background work, and a `Symbol.dispose` cleanup that works with both `using` and manual disposal. `AbortSignal.any` is a Node ≥ 20 primitive; it is the single mechanism that fuses two abort sources into one, adopting the reason of whichever fires first. External request hints validate as positive finite numbers via `clampTimeout` before they reach `deadline`; `0` is not a model-/plugin-facing "disable timeout" value. When `timeoutMs <= 0` and no upstream signal is present, `deadline()` returns a never-aborting signal plus a no-op disposer so callers keep one call shape. `TimeoutReason` is an internal classification reason: providers translate it into seam-specific public errors or result fields before returning to callers. +`deadline` is `AbortSignal.any([upstream, ])` with three things the standard library does not give: a typed, identifiable `TimeoutReason` on the timeout abort (native `AbortSignal.timeout()` yields a fixed `TimeoutError`, indistinguishable across timeout kinds), an internal `timeoutMs <= 0` "no timeout" sentinel for backend-owned background work, and a `Symbol.dispose` cleanup that works with both `using` and manual disposal. `AbortSignal.any` is a Node ≥ 20 primitive; it is the single mechanism that fuses two abort sources into one, adopting the reason of whichever fires first. External request hints validate as positive finite numbers via `clampTimeout` before they reach `deadline`; `0` is not a model-/plugin-facing "disable timeout" value. When `timeoutMs <= 0` and no upstream signal is present, `deadline()` returns a never-aborting signal plus a no-op disposer so callers keep one call shape. `TimeoutReason` is an internal classification reason: providers translate it into seam-specific public errors or result fields before returning to callers. `timeoutOf`'s optional `code` scopes classification to the caller's own deadline: when the `upstream` is itself a deadline (a future `tools/execute` middleware arming a per-call deadline), `AbortSignal.any` preserves the outer `TimeoutReason` if it fires first, and an unscoped match would misreport the outer timeout as the inner capability's own; scoping to `code` reads a foreign timeout as an ordinary upstream cancel. ### The division of labor @@ -76,7 +76,7 @@ The signal only *notifies*; termination is always the listener's job, and the li ### How each capability consumes it - **web_fetch** — the tool stays validate-and-forward; the provider's hand-rolled controller + `setTimeout` + manual listener + `finally` + `signal.reason` recovery is replaced by provider-owned `deadline`/`timeoutOf`. A pre-aborted upstream signal still throws `WEB_ABORTED` up front; otherwise `fetch` runs against the fused `d.signal`, and `translateAbortOrNetwork` classifies a thrown error by the signal (`timeoutOf` → `WEB_FETCH_TIMEOUT`, else aborted → `WEB_ABORTED`, else network → `WEB_PROVIDER_ERROR`). The public error-code contract is unchanged, and `TimeoutReason` never crosses the web seam as the public error. -- **bash** — `resolve()` stays a pure request-to-spec step: it clamps with `clampTimeout(request.timeoutMs, config.timeoutMs, config.maxTimeoutMs, 'bash-local: request.timeoutMs')` and carries `request.signal` through unchanged. Foreground `run()` owns the timeout: `using d = deadline(spec.signal, spec.timeoutMs, 'BASH_TIMEOUT')`, then `runBash` receives only `d.signal`. `runBash` no longer owns any timer — it listens for abort and runs its existing SIGTERM→grace→SIGKILL process-group kill, and its `SpawnSpec`/`SpawnOutcome` no longer carry `timeoutMs`/`timedOut`/`aborted` (the executor classifies from the deadline signal instead). `run()` computes `timedOut = timeoutOf(d.signal) !== undefined` and `aborted = d.signal.aborted && !timedOut`, so the public seam booleans (`BashRunResult.timedOut`/`aborted`) are mutually exclusive — the shared deadline reports the cause that first cut the command short. Background `start()` creates no deadline and forwards only the upstream signal, so background tasks stay timeout-free; a task's killed-vs-completed status reads its own `spec.signal.aborted`. +- **bash** — `resolve()` stays a pure request-to-spec step: it clamps with `clampTimeout(request.timeoutMs, config.timeoutMs, config.maxTimeoutMs, 'bash-local: request.timeoutMs')` and carries `request.signal` through unchanged. Foreground `run()` owns the timeout: `using d = deadline(spec.signal, spec.timeoutMs, 'BASH_TIMEOUT')`, then `runBash` receives only `d.signal`. `runBash` no longer owns any timer — it listens for abort and runs its existing SIGTERM→grace→SIGKILL process-group kill, and its `SpawnSpec`/`SpawnOutcome` no longer carry `timeoutMs`/`timedOut`/`aborted` (the executor classifies from the deadline signal instead). `run()` computes `timedOut = timeoutOf(d.signal, 'BASH_TIMEOUT') !== undefined` and `aborted = d.signal.aborted && !timedOut`, so the public seam booleans (`BashRunResult.timedOut`/`aborted`) are mutually exclusive — the shared deadline reports the cause that first cut the command short, and the `code` scope keeps a nested outer deadline from being misread as bash's own timeout. Background `start()` creates no deadline and forwards only the upstream signal, so background tasks stay timeout-free; a task's killed-vs-completed status reads its own `spec.signal.aborted`. ## Consequences diff --git a/packages/bash/bash-local/src/index.ts b/packages/bash/bash-local/src/index.ts index 674f410b50..3e09d7e35b 100644 --- a/packages/bash/bash-local/src/index.ts +++ b/packages/bash/bash-local/src/index.ts @@ -150,11 +150,12 @@ export class LocalBashExecutor extends BashExecutor { stdin: spec.stdin, env: spec.env, }, this.internals).done - // Classify the FIRST abort reason: a TimeoutReason means the timeout cut the - // command short; any other abort is upstream cancellation. Mutually - // exclusive by construction — the fused signal reports one cause, not two - // independently-latched facts. - const timedOut = timeoutOf(d.signal) !== undefined + // Classify the FIRST abort reason: a BASH_TIMEOUT TimeoutReason means our + // timeout cut the command short; any other abort — an upstream cancel, or a + // foreign (outer) deadline's timeout under nesting — is aborted. Scoping to + // our own code keeps a nested outer deadline from reading as our timeout. + // Mutually exclusive by construction — the fused signal reports one cause. + const timedOut = timeoutOf(d.signal, 'BASH_TIMEOUT') !== undefined const aborted = d.signal.aborted && !timedOut return { ...outcome, timedOut, aborted, timeoutMs: spec.timeoutMs } } diff --git a/packages/util/timeout/README.md b/packages/util/timeout/README.md index 4aa4485108..db2b06ba53 100644 --- a/packages/util/timeout/README.md +++ b/packages/util/timeout/README.md @@ -16,7 +16,7 @@ import { clampTimeout, deadline, timeoutOf, TimeoutReason } from '@deepseek-ai/d |---|---| | `clampTimeout(requested, def, max, name?)` | Validate the caller's optional positive-finite hint, fill from `def`, cap at `max`. Throws (with `name`) on a non-positive/non-finite hint. | | `deadline(upstream, timeoutMs, code)` | Fuse `upstream` cancellation with a timeout into one `AbortSignal` (`AbortSignal.any`); the timeout carries a `TimeoutReason`. `[Symbol.dispose]` clears the timer. | -| `timeoutOf(signal \| { reason })` | Recover the `TimeoutReason` from an aborted signal/error, else `undefined` — the timeout-vs-cancel classifier. | +| `timeoutOf(signal \| { reason }, code?)` | Recover the `TimeoutReason` from an aborted signal/error, else `undefined` — the timeout-vs-cancel classifier. Pass `code` to match only THIS deadline's timer (see nesting below). | | `TimeoutReason` | The internal reason (`code` + `timeoutMs`) stamped on a timeout abort. Not a public error — providers translate it into their own error/field. | ## The `timeoutMs <= 0` sentinel @@ -28,13 +28,15 @@ import { clampTimeout, deadline, timeoutOf, TimeoutReason } from '@deepseek-ai/d ```ts ignore-check // Scope-lifetime consumer (foreground bash, one fetch): `using` disposes the timer. using d = deadline(upstream, timeoutMs, 'BASH_TIMEOUT') -const outcome = await runWork({ signal: d.signal }) // work listens on d.signal and terminates itself -const timedOut = timeoutOf(d.signal) !== undefined // classify the first abort -const aborted = d.signal.aborted && !timedOut // mutually exclusive: timeout won, or cancel did +const outcome = await runWork({ signal: d.signal }) // work listens on d.signal and terminates itself +const timedOut = timeoutOf(d.signal, 'BASH_TIMEOUT') !== undefined // classify the first abort, scoped to OUR code +const aborted = d.signal.aborted && !timedOut // mutually exclusive: timeout won, or cancel did ``` The signal only *notifies* — the caller MUST attach its own termination (`d.signal.addEventListener('abort', kill)`, or hand `d.signal` to `fetch`). Racing a promise against a timer would resolve the tool-call while the child process or socket leaks on; handing out a signal forces a real termination path to exist. +Pass your own `code` to `timeoutOf` so classification composes under nesting: when the `upstream` you were handed is *itself* a deadline signal (a future `tools/execute` middleware arming a per-call deadline), `AbortSignal.any` preserves the outer `TimeoutReason` if the outer timer fires first. Scoping to your `code` makes a foreign timeout read as an ordinary upstream cancel — the correct classification from your capability's view — instead of your own timeout firing when your local timer never expired. + ## What does NOT get a timeout Local file `read`/`write`/`edit` take no `timeoutMs`: a syscall is best-effort-abortable at most, a timeout could not force `fsync`/`rename` to stop, and adding one would be an implicit default that violates explicit-over-implicit. See [`fs/`](../../fs/README.md). diff --git a/packages/util/timeout/src/index.ts b/packages/util/timeout/src/index.ts index dbfc76adb4..ed95a877d3 100644 --- a/packages/util/timeout/src/index.ts +++ b/packages/util/timeout/src/index.ts @@ -138,12 +138,25 @@ export function deadline( * was its timeout (translate to the capability's timeout error/field) or an * ordinary upstream cancellation (`undefined` → the cancel path). * + * Pass `code` to scope the match to THIS deadline's timer. It matters under + * nesting: when the `upstream` handed to {@link deadline} is itself a deadline + * signal (e.g. a future `tools/execute` middleware arming a per-call deadline), + * `AbortSignal.any` preserves the OUTER `TimeoutReason` if the outer timer fires + * first. Without `code`, the inner capability would misclassify that outer + * timeout as its own (`timedOut:true` / `WEB_FETCH_TIMEOUT`) though its local + * timer never expired; with `code`, a foreign timeout reads as `undefined` and + * falls through to the upstream-cancel path, which is the correct classification + * from the inner capability's view. Omit `code` only to ask "was this ANY + * timeout" (a generic middleware that owns no single code). + * * @param x An {@link AbortSignal} or any `{ reason }` carrier (e.g. a caught abort error). - * @returns The {@link TimeoutReason} when the abort was a timeout, else `undefined`. + * @param code When provided, only a {@link TimeoutReason} with this exact `code` matches. + * @returns The matching {@link TimeoutReason}, else `undefined`. */ -export function timeoutOf(x: AbortSignal | { reason?: unknown }): TimeoutReason | undefined { +export function timeoutOf(x: AbortSignal | { reason?: unknown }, code?: string): TimeoutReason | undefined { // AbortSignal.reason is typed `any`; pin it to `unknown` so no `any` leaks and // the instanceof narrows cleanly for both a signal and a bare reason carrier. const reason: unknown = x.reason - return reason instanceof TimeoutReason ? reason : undefined + if (!(reason instanceof TimeoutReason)) return undefined + return code === undefined || reason.code === code ? reason : undefined } diff --git a/packages/util/timeout/tests/timeout.spec.ts b/packages/util/timeout/tests/timeout.spec.ts index 4e60cf35b7..57066a4f54 100644 --- a/packages/util/timeout/tests/timeout.spec.ts +++ b/packages/util/timeout/tests/timeout.spec.ts @@ -157,4 +157,25 @@ describe('timeoutOf', () => { expect(timeoutOf({ reason: 'user cancelled' })).toBeUndefined() expect(timeoutOf({})).toBeUndefined() }) + + it('matches only the requested code when one is given', () => { + const reason = new TimeoutReason('BASH_TIMEOUT', 100) + expect(timeoutOf({ reason }, 'BASH_TIMEOUT')).toBe(reason) + expect(timeoutOf({ reason }, 'WEB_FETCH_TIMEOUT')).toBeUndefined() + }) +}) + +describe('deadline — nested deadlines', () => { + it("does not misclassify an outer deadline's timeout as the inner code", () => { + // The upstream handed to the inner deadline is ITSELF a deadline that has + // already timed out (outer). AbortSignal.any preserves the outer reason; + // scoping timeoutOf to the inner code keeps the inner capability from + // reporting the outer timeout as its own — it reads as an upstream cancel. + const outer = new AbortController() + outer.abort(new TimeoutReason('OUTER_TIMEOUT', 30)) + using inner = deadline(outer.signal, 60_000, 'BASH_TIMEOUT') + expect(inner.signal.aborted).toBe(true) + expect(timeoutOf(inner.signal, 'BASH_TIMEOUT')).toBeUndefined() // not ours → upstream-cancel path + expect(timeoutOf(inner.signal)?.code).toBe('OUTER_TIMEOUT') // but IS a timeout, unscoped + }) }) diff --git a/packages/web/web-fetch-local/src/provider.ts b/packages/web/web-fetch-local/src/provider.ts index 53fc57f621..b15483ba38 100644 --- a/packages/web/web-fetch-local/src/provider.ts +++ b/packages/web/web-fetch-local/src/provider.ts @@ -249,13 +249,14 @@ function resolveRedirect(location: string, base: URL): URL { * Translate a thrown fetch/stream error into a `WebError`, classified by the * deadline signal rather than the error's shape (which differs by phase: the * request-phase `fetch` rejects with the abort reason, while the read-phase - * reader surfaces a bare `AbortError`). `timeoutOf(signal)` recovering a - * `TimeoutReason` means our timeout fired (`WEB_FETCH_TIMEOUT`); any other abort - * is upstream cancellation (`WEB_ABORTED`); a throw with the signal NOT aborted - * is a transport/network failure (`WEB_PROVIDER_ERROR`). + * reader surfaces a bare `AbortError`). `timeoutOf(signal, 'WEB_FETCH_TIMEOUT')` + * recovering OUR reason means our timeout fired (`WEB_FETCH_TIMEOUT`); any other + * abort — an upstream cancel, or a foreign/outer deadline's timeout under + * nesting — is `WEB_ABORTED`; a throw with the signal NOT aborted is a + * transport/network failure (`WEB_PROVIDER_ERROR`). */ function translateAbortOrNetwork(error: unknown, signal: AbortSignal): WebError { - const timeout = timeoutOf(signal) + const timeout = timeoutOf(signal, 'WEB_FETCH_TIMEOUT') if (timeout !== undefined) return new WebError('web fetch timed out', 'WEB_FETCH_TIMEOUT', { cause: timeout }) if (signal.aborted) return new WebError('web fetch aborted', 'WEB_ABORTED', { cause: error }) return new WebError(`web fetch failed: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) From be8874f8db69471ad4a883088dc2929b660762c5 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Mon, 6 Jul 2026 17:22:17 +0800 Subject: [PATCH 033/232] test: reduce ACP skill snapshot churn --- .../tests/snapshots/cancel/session.jsonl | 18 +- .../snapshots/error-finish/session.jsonl | 14 +- .../tests/snapshots/fs-edit/session.jsonl | 268 ++-- .../snapshots/fs-policy-reject/session.jsonl | 532 +++---- .../snapshots/fs-read-window/session.jsonl | 230 +-- .../tests/snapshots/fs-read/session.jsonl | 172 +-- .../snapshots/fs-terminal-card/session.jsonl | 174 +-- .../fs-write-overwrite/session.jsonl | 360 ++--- .../tests/snapshots/fs-write/session.jsonl | 224 +-- .../hook-cc-posttool-block/session.jsonl | 1308 ++++++++--------- .../hook-cc-posttool-context/session.jsonl | 232 +-- .../hook-cc-pretool-ask/session.jsonl | 234 +-- .../hook-cc-pretool-deny/session.jsonl | 230 +-- .../hook-cc-promptsubmit-block/session.jsonl | 12 +- .../session.jsonl | 102 +- .../hook-cc-stop-continue/session.jsonl | 132 +- .../hook-codex-posttool-block/session.jsonl | 292 ++-- .../hook-codex-posttool-context/session.jsonl | 236 +-- .../hook-codex-pretool-block/session.jsonl | 242 +-- .../session.jsonl | 12 +- .../session.jsonl | 98 +- .../hook-codex-stop-continue/session.jsonl | 150 +- .../tests/snapshots/multi-turn/session.jsonl | 128 +- .../snapshots/subagent-fork/session.1.jsonl | 154 +- .../snapshots/subagent-fork/session.jsonl | 388 ++--- .../snapshots/subagent-mixed/session.1.jsonl | 72 +- .../snapshots/subagent-mixed/session.2.jsonl | 138 +- .../snapshots/subagent-mixed/session.jsonl | 642 ++++---- .../snapshots/subagent-multi/session.1.jsonl | 72 +- .../snapshots/subagent-multi/session.2.jsonl | 68 +- .../snapshots/subagent-multi/session.jsonl | 410 +++--- .../snapshots/subagent-spawn/session.1.jsonl | 68 +- .../snapshots/subagent-spawn/session.jsonl | 230 +-- .../tests/snapshots/text-turn/session.jsonl | 72 +- .../tests/snapshots/todo-plan/session.jsonl | 254 ++-- .../snapshots/tool-call-turn/session.jsonl | 206 +-- .../snapshots/workspace-edit/session.jsonl | 528 +++---- 37 files changed, 4351 insertions(+), 4351 deletions(-) diff --git a/examples/acp-agent/tests/snapshots/cancel/session.jsonl b/examples/acp-agent/tests/snapshots/cancel/session.jsonl index 9f7741389b..837a4ae788 100644 --- a/examples/acp-agent/tests/snapshots/cancel/session.jsonl +++ b/examples/acp-agent/tests/snapshots/cancel/session.jsonl @@ -1,9 +1,9 @@ -{"type":"session","version":0,"id":"ff0aac95-8626-4ead-b686-7801b8f71415","createdAt":1783329007744,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-cFOX6B"} -{"type":"turn/start","seq":0,"time":1783329007746,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329007747,"data":{"content":[{"type":"text","text":"Start a long task; this turn will be cancelled mid-stream."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329007768,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329007768,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-cFOX6B.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} -{"type":"assistant/chunk","seq":4,"time":1783329007768,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}} -{"type":"assistant/chunk","seq":5,"time":1783329007768,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":0,"text":"partial"}}} -{"type":"step/end","seq":6,"time":1783329007769,"data":{"turn":1,"step":1}} -{"type":"turn/end","seq":7,"time":1783329007769,"data":{"turn":1,"reason":{"kind":"aborted","reason":"session/cancel"}}} +{"type":"session","version":0,"id":"{{sessionId}}","createdAt":0,"cwd":"{{cwd}}"} +{"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"Start a long task; this turn will be cancelled mid-stream."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"assistant/chunk","seq":4,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}} +{"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":0,"text":"partial"}}} +{"type":"step/end","seq":6,"time":0,"data":{"turn":1,"step":1}} +{"type":"turn/end","seq":7,"time":0,"data":{"turn":1,"reason":{"kind":"aborted","reason":"session/cancel"}}} diff --git a/examples/acp-agent/tests/snapshots/error-finish/session.jsonl b/examples/acp-agent/tests/snapshots/error-finish/session.jsonl index 458647f6e3..e9d23fa669 100644 --- a/examples/acp-agent/tests/snapshots/error-finish/session.jsonl +++ b/examples/acp-agent/tests/snapshots/error-finish/session.jsonl @@ -1,7 +1,7 @@ -{"type":"session","version":0,"id":"fe9808ef-c08c-47bc-96b1-083f0cd2efa0","createdAt":1783329007385,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-qcodOr"} -{"type":"turn/start","seq":0,"time":1783329007387,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329007388,"data":{"content":[{"type":"text","text":"This prompt triggers a recorded provider error."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329007407,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329007407,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-qcodOr.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} -{"type":"step/end","seq":4,"time":1783329007407,"data":{"turn":1,"step":1}} -{"type":"turn/end","seq":5,"time":1783329007407,"data":{"turn":1,"reason":{"kind":"error","step":1,"message":"simulated provider error (HTTP 401)","code":"AUTH"}}} +{"type":"session","version":0,"id":"{{sessionId}}","createdAt":0,"cwd":"{{cwd}}"} +{"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"This prompt triggers a recorded provider error."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"step/end","seq":4,"time":0,"data":{"turn":1,"step":1}} +{"type":"turn/end","seq":5,"time":0,"data":{"turn":1,"reason":{"kind":"error","step":1,"message":"simulated provider error (HTTP 401)","code":"AUTH"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl b/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl index b0524cf699..0a2de9911a 100644 --- a/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl @@ -1,134 +1,134 @@ -{"type":"session","version":0,"id":"0cec50cc-2c79-4c47-83de-7d8cb6bd4529","createdAt":1783329005604,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-8kuqrw"} -{"type":"turn/start","seq":0,"time":1783329005607,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329005607,"data":{"content":[{"type":"text","text":"First use the read tool to read config.txt in the current directory. Then use the edit tool (NOT bash) to replace the literal text DEBUG with RELEASE in that file. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329005628,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329005628,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-8kuqrw.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} -{"type":"assistant/chunk","seq":4,"time":1783329005628,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} -{"type":"assistant/chunk","seq":5,"time":1783329005628,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"Let"}}} -{"type":"assistant/chunk","seq":6,"time":1783329005628,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}} -{"type":"assistant/chunk","seq":7,"time":1783329005628,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" read"}}} -{"type":"assistant/chunk","seq":8,"time":1783329005628,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" the"}}} 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Let me verify by quickly checking."}}}} +{"type":"assistant/chunk","seq":259,"time":1783279388421,"data":{"turn":1,"step":3,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"DONE"}}}} +{"type":"assistant/chunk","seq":260,"time":1783279388421,"data":{"turn":1,"step":3,"chunk":{"type":"usage","usage":{"inputTokens":308,"outputTokens":15,"cacheReadTokens":2176,"reasoningTokens":12}}}} +{"type":"assistant/chunk","seq":261,"time":1783279388421,"data":{"turn":1,"step":3,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":262,"time":1783279388422,"data":{"turn":1,"step":3,"content":[{"type":"reasoning","text":"The bash command succeeded. Let me verify by quickly checking."},{"type":"text","text":"DONE"}],"usage":{"inputTokens":308,"outputTokens":15,"cacheReadTokens":2176,"reasoningTokens":12}},"sourceEventSeqs":[242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261],"surfaceOp":"append"} +{"type":"step/end","seq":263,"time":1783279388422,"data":{"turn":1,"step":3}} +{"type":"turn/end","seq":264,"time":1783279388422,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl b/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl index dc7410e623..0a03943616 100644 --- a/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl @@ -1,115 +1,115 @@ -{"type":"session","version":0,"id":"45c0b8ce-16e9-4e01-8f27-cef4533f8b0b","createdAt":1783329006277,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-goqVpV"} -{"type":"turn/start","seq":0,"time":1783329006280,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329006280,"data":{"content":[{"type":"text","text":"Use the read tool (NOT bash) with offset 5 and limit 4 to read lines 5 through 8 of big.txt in the current directory. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329006299,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329006300,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-goqVpV.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. 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Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. 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Your working\ndirectory is /tmp/acp-snap-cwd-Zo3aiO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. 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You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. 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Now I need to reply with exactly the single word \"DONE\"."},{"type":"text","text":"DONE"}],"usage":{"inputTokens":192,"outputTokens":23,"cacheReadTokens":2048,"reasoningTokens":20}},"sourceEventSeqs":[54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81],"surfaceOp":"append"} +{"type":"step/end","seq":83,"time":1783279357753,"data":{"turn":1,"step":2}} +{"type":"turn/end","seq":84,"time":1783279357753,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl b/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl index 8a7aa9f28a..6872cf584d 100644 --- a/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl @@ -1,87 +1,87 @@ -{"type":"session","version":0,"id":"f360417f-8ea2-47db-b2b7-8f251bcd0367","createdAt":1783329003415,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-0NfzWY"} -{"type":"turn/start","seq":0,"time":1783329003417,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329003417,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo TERMINAL_OK. Then reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329003437,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329003437,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-0NfzWY.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. 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Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. 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Now I need to reply with the single word DONE."},{"type":"text","text":"DONE"}],"usage":{"inputTokens":157,"outputTokens":20,"cacheReadTokens":2048,"reasoningTokens":17}},"sourceEventSeqs":[58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82],"surfaceOp":"append"} +{"type":"step/end","seq":84,"time":1783279340329,"data":{"turn":1,"step":2}} +{"type":"turn/end","seq":85,"time":1783279340329,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl b/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl index cd703267c9..84061f8f2a 100644 --- a/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl @@ -1,180 +1,180 @@ -{"type":"session","version":0,"id":"eb755c6f-8a6f-46b9-8d0d-7a5fce40d7b5","createdAt":1783329005950,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-ZitLDF"} -{"type":"turn/start","seq":0,"time":1783329005953,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329005953,"data":{"content":[{"type":"text","text":"First use the read tool to read data.txt in the current directory. Then use the write tool (NOT bash) to replace its entire contents with exactly the single line: replaced. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329005974,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329005974,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-ZitLDF.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. 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Now I need to reply with exactly \"DONE\"."},{"type":"text","text":"DONE"}],"usage":{"inputTokens":257,"outputTokens":16,"cacheReadTokens":2176,"reasoningTokens":13}},"sourceEventSeqs":[155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175],"surfaceOp":"append"} +{"type":"step/end","seq":177,"time":0,"data":{"turn":1,"step":3}} +{"type":"turn/end","seq":178,"time":0,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-write/session.jsonl b/examples/acp-agent/tests/snapshots/fs-write/session.jsonl index 592c075d1e..b993bf5b37 100644 --- a/examples/acp-agent/tests/snapshots/fs-write/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-write/session.jsonl @@ -1,112 +1,112 @@ -{"type":"session","version":0,"id":"b9c9525a-4c51-4b5f-88ff-c113b6c5f84e","createdAt":1783329005286,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-ZmJieu"} -{"type":"turn/start","seq":0,"time":1783329005289,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329005289,"data":{"content":[{"type":"text","text":"Use the write tool (NOT bash) to create a file named notes.txt in the current directory containing exactly the single line: hello world. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329005309,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329005309,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-ZmJieu.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. 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Now I just need to reply with exactly \"DONE\"."},{"type":"text","text":"DONE"}],"usage":{"inputTokens":225,"outputTokens":21,"cacheReadTokens":2048,"reasoningTokens":18}},"sourceEventSeqs":[82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107],"surfaceOp":"append"} +{"type":"step/end","seq":109,"time":0,"data":{"turn":1,"step":2}} +{"type":"turn/end","seq":110,"time":0,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl index 4a3aa64bb6..3a2b0f62fd 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl @@ -1,654 +1,654 @@ -{"type":"session","version":0,"id":"9485c243-ed1d-4f53-aa5b-bc1d7ab501be","createdAt":1783329011514,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-OQeO3u"} -{"type":"turn/start","seq":0,"time":1783329011516,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329011516,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. 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Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. 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The tool result I received is:\n\n> Error: bash is disabled by policy in this session"}],"usage":{"inputTokens":163,"outputTokens":47,"cacheReadTokens":2048,"reasoningTokens":17}},"sourceEventSeqs":[59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110],"surfaceOp":"append"} +{"type":"step/end","seq":112,"time":1783279431164,"data":{"turn":1,"step":2}} +{"type":"turn/end","seq":113,"time":1783279431164,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-block/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-block/session.jsonl index 5bec59c2ca..b5f81fdaea 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-block/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-block/session.jsonl @@ -1,6 +1,6 @@ -{"type":"session","version":0,"id":"13bcada8-5086-4f73-931a-347c76d3b6d3","createdAt":1783329009465,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-CXvYyw"} -{"type":"turn/start","seq":0,"time":1783329009468,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"hook/invoked","seq":1,"time":1783329009468,"data":{"turn":1,"point":"UserPromptSubmit","dialect":"claude","handlerId":"claude:UserPromptSubmit:1"}} -{"type":"hook/result","seq":2,"time":1783329009556,"data":{"turn":1,"point":"UserPromptSubmit","handlerId":"claude:UserPromptSubmit:1","decision":"block","exitCode":2,"stderrSummary":"blocked by policy hook","durationMs":87.84841699999998}} -{"type":"prompt/blocked","seq":3,"time":1783329009557,"data":{"content":[{"type":"text","text":"Delete everything in the repo."}],"source":{"kind":"user"},"reason":"blocked by policy hook"}} -{"type":"turn/end","seq":4,"time":1783329009557,"data":{"turn":1,"reason":{"kind":"rejected","reason":"blocked by policy hook"}}} +{"type":"session","version":0,"id":"{{sessionId}}","createdAt":0,"cwd":"{{cwd}}"} +{"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"hook/invoked","seq":1,"time":0,"data":{"turn":1,"point":"UserPromptSubmit","dialect":"claude","handlerId":"claude:UserPromptSubmit:1"}} +{"type":"hook/result","seq":2,"time":0,"data":{"turn":1,"point":"UserPromptSubmit","handlerId":"claude:UserPromptSubmit:1","decision":"block","exitCode":2,"stderrSummary":"blocked by policy hook","durationMs":0}} +{"type":"prompt/blocked","seq":3,"time":0,"data":{"content":[{"type":"text","text":"Delete everything in the repo."}],"source":{"kind":"user"},"reason":"blocked by policy hook"}} +{"type":"turn/end","seq":4,"time":0,"data":{"turn":1,"reason":{"kind":"rejected","reason":"blocked by policy hook"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl index f78771476f..09e9cc158c 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl @@ -1,51 +1,51 @@ -{"type":"session","version":0,"id":"66ab64fe-18af-440a-851a-dd1cf2ba59bf","createdAt":1783329010248,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-xUgyf6"} -{"type":"turn/start","seq":0,"time":1783329010250,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"hook/invoked","seq":1,"time":1783329010250,"data":{"turn":1,"point":"UserPromptSubmit","dialect":"claude","handlerId":"claude:UserPromptSubmit:1"}} -{"type":"hook/result","seq":2,"time":1783329010344,"data":{"turn":1,"point":"UserPromptSubmit","handlerId":"claude:UserPromptSubmit:1","decision":"pass","exitCode":0,"durationMs":92.90583299999997}} -{"type":"user/message","seq":3,"time":1783329010344,"data":{"content":[{"type":"text","text":"What is my favorite color? Reply with just the color and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"context/message","seq":4,"time":1783329010344,"data":{"content":[{"type":"text","text":"The user has previously stated their favorite color is teal."}],"source":{"kind":"plugin","plugin":"hooks-claude"}},"surfaceOp":"append"} -{"type":"step/start","seq":5,"time":1783329010356,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":6,"time":1783329010356,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-xUgyf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. 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Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. 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Based on the context provided, their favorite color is teal."}}}} +{"type":"assistant/chunk","seq":44,"time":1783279425949,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"teal"}}}} +{"type":"assistant/chunk","seq":45,"time":1783279425949,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":2120,"outputTokens":35,"cacheReadTokens":0,"reasoningTokens":32}}}} +{"type":"assistant/chunk","seq":46,"time":1783279425949,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":47,"time":1783279425951,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"The user asked me to reply with just their favorite color and stop, without using any tools. Based on the context provided, their favorite color is teal."},{"type":"text","text":"teal"}],"usage":{"inputTokens":2120,"outputTokens":35,"cacheReadTokens":0,"reasoningTokens":32}},"sourceEventSeqs":[7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46],"surfaceOp":"append"} +{"type":"step/end","seq":48,"time":1783279425952,"data":{"turn":1,"step":1}} +{"type":"turn/end","seq":49,"time":1783279425952,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl index 9ef064547f..4515f4fb02 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl @@ -1,66 +1,66 @@ -{"type":"session","version":0,"id":"427044db-4a05-4958-a84d-63ce38ad7301","createdAt":1783329013031,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-kgLaDt"} -{"type":"turn/start","seq":0,"time":1783329013034,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329013034,"data":{"content":[{"type":"text","text":"Reply with the single word FIRST and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329013054,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329013054,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-kgLaDt.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. 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Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. 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-{"type":"hook/result","seq":63,"time":1783329013202,"data":{"turn":1,"point":"Stop","handlerId":"claude:Stop:2","decision":"pass","exitCode":0,"durationMs":52.63387499999999}} -{"type":"turn/end","seq":64,"time":1783329013202,"data":{"turn":1,"reason":{"kind":"completed"}}} +{"type":"session","version":0,"id":"31e4dc78-156d-4d37-83c0-8589eaa35116","createdAt":1783279459585,"cwd":"/tmp/acp-snap-cwd-y7ZIlD"} +{"type":"turn/start","seq":0,"time":1783279459589,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":1,"time":1783279459590,"data":{"content":[{"type":"text","text":"Reply with the single word FIRST and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":2,"time":1783279459591,"data":{"turn":1,"step":1}} +{"type":"request/header","seq":3,"time":1783279459592,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-y7ZIlD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. 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Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. 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Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"assistant/chunk","seq":4,"time":1783279460023,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} +{"type":"assistant/chunk","seq":5,"time":1783279460023,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} +{"type":"assistant/chunk","seq":6,"time":1783279460120,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} +{"type":"assistant/chunk","seq":7,"time":1783279460148,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" wants"}}} +{"type":"assistant/chunk","seq":8,"time":1783279460148,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}} 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Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329014373,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329014373,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-20drzQ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. 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The result I got back is: \"tool output rejected by codex policy: summarize instead\". I'll report this verbatim."}}}} +{"type":"assistant/chunk","seq":139,"time":1783279476449,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"The tool result I got back verbatim is:\n\n```\ntool output rejected by codex policy: summarize instead\n```"}}}} +{"type":"assistant/chunk","seq":140,"time":1783279476449,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":168,"outputTokens":72,"cacheReadTokens":2048,"reasoningTokens":48}}}} +{"type":"assistant/chunk","seq":141,"time":1783279476449,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":142,"time":1783279476449,"data":{"turn":1,"step":2,"content":[{"type":"reasoning","text":"The tool output was rejected by codex policy, but I'm told to report the tool result verbatim. 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Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329014849,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329014850,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-GnY5Un.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. 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+{"type":"assistant/chunk","seq":111,"time":1783279470382,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"\n"}}} +{"type":"assistant/chunk","seq":112,"time":1783279470382,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"```"}}} +{"type":"assistant/chunk","seq":113,"time":1783279470383,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The bash tool returned an error: \"bash is disabled by codex policy in this session\". I need to report this result verbatim."}}}} +{"type":"assistant/chunk","seq":114,"time":1783279470383,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"The tool result I got back verbatim is:\n\n```\nError: bash is disabled by codex policy in this session\n```"}}}} +{"type":"assistant/chunk","seq":115,"time":1783279470383,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":163,"outputTokens":54,"cacheReadTokens":2048,"reasoningTokens":28}}}} +{"type":"assistant/chunk","seq":116,"time":1783279470383,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":117,"time":1783279470383,"data":{"turn":1,"step":2,"content":[{"type":"reasoning","text":"The bash tool returned an error: \"bash is disabled by codex policy in this session\". I need to report this result verbatim."},{"type":"text","text":"The tool result I got back verbatim is:\n\n```\nError: bash is disabled by codex policy in this session\n```"}],"usage":{"inputTokens":163,"outputTokens":54,"cacheReadTokens":2048,"reasoningTokens":28}},"sourceEventSeqs":[58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116],"surfaceOp":"append"} +{"type":"step/end","seq":118,"time":1783279470383,"data":{"turn":1,"step":2}} +{"type":"turn/end","seq":119,"time":1783279470383,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-block/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-block/session.jsonl index a87b44aad4..bc9144f980 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-block/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-block/session.jsonl @@ -1,6 +1,6 @@ -{"type":"session","version":0,"id":"08a96486-95f1-4ab6-9cfa-7aaa31801df8","createdAt":1783329009855,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-MiZ1SA"} -{"type":"turn/start","seq":0,"time":1783329009858,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"hook/invoked","seq":1,"time":1783329009858,"data":{"turn":1,"point":"UserPromptSubmit","dialect":"codex","handlerId":"codex:UserPromptSubmit:1"}} -{"type":"hook/result","seq":2,"time":1783329009950,"data":{"turn":1,"point":"UserPromptSubmit","handlerId":"codex:UserPromptSubmit:1","decision":"block","exitCode":2,"stderrSummary":"blocked by codex policy hook","durationMs":91.78695800000003}} -{"type":"prompt/blocked","seq":3,"time":1783329009951,"data":{"content":[{"type":"text","text":"Delete everything in the repo."}],"source":{"kind":"user"},"reason":"blocked by codex policy hook"}} -{"type":"turn/end","seq":4,"time":1783329009951,"data":{"turn":1,"reason":{"kind":"rejected","reason":"blocked by codex policy hook"}}} +{"type":"session","version":0,"id":"{{sessionId}}","createdAt":0,"cwd":"{{cwd}}"} +{"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"hook/invoked","seq":1,"time":0,"data":{"turn":1,"point":"UserPromptSubmit","dialect":"codex","handlerId":"codex:UserPromptSubmit:1"}} +{"type":"hook/result","seq":2,"time":0,"data":{"turn":1,"point":"UserPromptSubmit","handlerId":"codex:UserPromptSubmit:1","decision":"block","exitCode":2,"stderrSummary":"blocked by codex policy hook","durationMs":0}} +{"type":"prompt/blocked","seq":3,"time":0,"data":{"content":[{"type":"text","text":"Delete everything in the repo."}],"source":{"kind":"user"},"reason":"blocked by codex policy hook"}} +{"type":"turn/end","seq":4,"time":0,"data":{"turn":1,"reason":{"kind":"rejected","reason":"blocked by codex policy hook"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl index 87ceca6e33..d81be0b43b 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl @@ -1,49 +1,49 @@ -{"type":"session","version":0,"id":"97813998-cee8-47df-908f-a854ce368b17","createdAt":1783329013515,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-OYWVHq"} -{"type":"turn/start","seq":0,"time":1783329013518,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"hook/invoked","seq":1,"time":1783329013518,"data":{"turn":1,"point":"UserPromptSubmit","dialect":"codex","handlerId":"codex:UserPromptSubmit:1"}} -{"type":"hook/result","seq":2,"time":1783329013609,"data":{"turn":1,"point":"UserPromptSubmit","handlerId":"codex:UserPromptSubmit:1","decision":"pass","exitCode":0,"durationMs":90.34204199999999}} -{"type":"user/message","seq":3,"time":1783329013609,"data":{"content":[{"type":"text","text":"What is my favorite color? Reply with just the color and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"context/message","seq":4,"time":1783329013609,"data":{"content":[{"type":"text","text":"The user has previously stated their favorite color is teal."}],"source":{"kind":"plugin","plugin":"hooks-codex"}},"surfaceOp":"append"} -{"type":"step/start","seq":5,"time":1783329013621,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":6,"time":1783329013621,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-OYWVHq.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. 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Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. 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They want just the color and no tools."}}}} +{"type":"assistant/chunk","seq":42,"time":1783279465048,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"teal"}}}} +{"type":"assistant/chunk","seq":43,"time":1783279465048,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":2119,"outputTokens":33,"cacheReadTokens":0,"reasoningTokens":30}}}} +{"type":"assistant/chunk","seq":44,"time":1783279465048,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":45,"time":1783279465050,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"The user asked about their favorite color, and the context tells me they previously stated it's teal. They want just the color and no tools."},{"type":"text","text":"teal"}],"usage":{"inputTokens":2119,"outputTokens":33,"cacheReadTokens":0,"reasoningTokens":30}},"sourceEventSeqs":[7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44],"surfaceOp":"append"} +{"type":"step/end","seq":46,"time":1783279465050,"data":{"turn":1,"step":1}} +{"type":"turn/end","seq":47,"time":1783279465050,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl index a20f6b04e1..77a712d7e0 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl @@ -1,75 +1,75 @@ -{"type":"session","version":0,"id":"9fa1ac4b-7ecd-44a8-856a-a53b1dc6f200","createdAt":1783329015298,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-kQuOup"} -{"type":"turn/start","seq":0,"time":1783329015300,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329015301,"data":{"content":[{"type":"text","text":"Reply with the single word FIRST and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329015320,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329015321,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. 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Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. 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You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. 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Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. 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+{"type":"assistant/chunk","seq":52,"time":1783279392651,"data":{"turn":2,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"."}}} +{"type":"assistant/chunk","seq":53,"time":1783279392680,"data":{"turn":2,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"text"}}} +{"type":"assistant/chunk","seq":54,"time":1783279392681,"data":{"turn":2,"step":1,"chunk":{"type":"text-delta","index":1,"text":"T"}}} +{"type":"assistant/chunk","seq":55,"time":1783279392706,"data":{"turn":2,"step":1,"chunk":{"type":"text-delta","index":1,"text":"WO"}}} +{"type":"assistant/chunk","seq":56,"time":1783279392707,"data":{"turn":2,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The user wants me to reply with exactly the word \"TWO\" and no tools."}}}} +{"type":"assistant/chunk","seq":57,"time":1783279392707,"data":{"turn":2,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"TWO"}}}} 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a/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl index 1b4c2e8d90..de6fdb41b1 100644 --- a/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl @@ -1,77 +1,77 @@ -{"type":"session","version":0,"id":"b01c9205-8a2a-420c-bfd5-00807970a57b","createdAt":1783329008796,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-WDoPI7","parentSession":"5545fa37-bb69-448d-bd5f-ead1468c688d","seedLength":33} -{"type":"turn/start","seq":0,"time":1783329008755,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329008756,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is MARMALADE. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329008776,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329008776,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-WDoPI7.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. 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Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. 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Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"assistant/chunk","seq":4,"time":1783279408758,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} +{"type":"assistant/chunk","seq":5,"time":1783279408758,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} +{"type":"assistant/chunk","seq":6,"time":1783279408906,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} +{"type":"assistant/chunk","seq":7,"time":1783279408935,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" is"}}} +{"type":"assistant/chunk","seq":8,"time":1783279408935,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" asking"}}} 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+{"type":"turn/start","seq":33,"time":1783279410879,"data":{"turn":2,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":34,"time":1783279410880,"data":{"content":[{"type":"text","text":"What is the project codeword mentioned earlier in this conversation? Reply with exactly that one word and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":35,"time":1783279410880,"data":{"turn":2,"step":1}} +{"type":"request/header","seq":36,"time":1783279410880,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. 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Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. 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You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. 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I recall it was \"MARMALADE\"."},{"type":"text","text":"MARMALADE"}],"usage":{"inputTokens":93,"outputTokens":31,"cacheReadTokens":2048,"reasoningTokens":26}},"sourceEventSeqs":[37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72],"surfaceOp":"append"} +{"type":"step/end","seq":74,"time":1783279411908,"data":{"turn":2,"step":1}} +{"type":"turn/end","seq":75,"time":1783279411908,"data":{"turn":2,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl index d3e32d9807..a6db6dfea8 100644 --- a/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl @@ -1,194 +1,194 @@ -{"type":"session","version":0,"id":"5545fa37-bb69-448d-bd5f-ead1468c688d","createdAt":1783329008753,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-WDoPI7"} -{"type":"turn/start","seq":0,"time":1783329008755,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329008756,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is MARMALADE. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329008776,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329008776,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-WDoPI7.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. 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Now I need to reply with \"PARENT_DONE\" and stop."}}}} +{"type":"assistant/chunk","seq":187,"time":1783279412919,"data":{"turn":2,"step":2,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"PARENT_DONE"}}}} +{"type":"assistant/chunk","seq":188,"time":1783279412919,"data":{"turn":2,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":64,"outputTokens":31,"cacheReadTokens":2304,"reasoningTokens":26}}}} +{"type":"assistant/chunk","seq":189,"time":1783279412919,"data":{"turn":2,"step":2,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":190,"time":1783279412920,"data":{"turn":2,"step":2,"content":[{"type":"reasoning","text":"The subagent correctly returned \"MARMALADE\". Now I need to reply with \"PARENT_DONE\" and stop."},{"type":"text","text":"PARENT_DONE"}],"usage":{"inputTokens":64,"outputTokens":31,"cacheReadTokens":2304,"reasoningTokens":26}},"sourceEventSeqs":[154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189],"surfaceOp":"append"} +{"type":"step/end","seq":191,"time":1783279412920,"data":{"turn":2,"step":2}} +{"type":"turn/end","seq":192,"time":1783279412920,"data":{"turn":2,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl index daac93ba55..1810859570 100644 --- a/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl @@ -1,36 +1,36 @@ -{"type":"session","version":0,"id":"888a6263-581d-488c-a63e-c9840f78cb8e","createdAt":1783329009135,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-26ySbT","parentSession":"a6d3b448-ed6f-452d-802b-3c537cb28c2d"} -{"type":"turn/start","seq":0,"time":1783329009135,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329009135,"data":{"content":[{"type":"text","text":"Reply with exactly the word ALPHA and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329009137,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329009137,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. 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You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. 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nothing"}}} +{"type":"assistant/chunk","seq":22,"time":1783279419021,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" else"}}} +{"type":"assistant/chunk","seq":23,"time":1783279419021,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"."}}} +{"type":"assistant/chunk","seq":24,"time":1783279419051,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"text"}}} +{"type":"assistant/chunk","seq":25,"time":1783279419051,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"AL"}}} +{"type":"assistant/chunk","seq":26,"time":1783279419051,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"P"}}} +{"type":"assistant/chunk","seq":27,"time":1783279419051,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"HA"}}} +{"type":"assistant/chunk","seq":28,"time":1783279419051,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The user wants me to reply with exactly the word \"ALPHA\" and nothing else."}}}} +{"type":"assistant/chunk","seq":29,"time":1783279419051,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"ALPHA"}}}} +{"type":"assistant/chunk","seq":30,"time":1783279419051,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":44,"outputTokens":23,"cacheReadTokens":2048,"reasoningTokens":19}}}} +{"type":"assistant/chunk","seq":31,"time":1783279419051,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":32,"time":1783279419052,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"The user wants me to reply with exactly the word \"ALPHA\" and nothing else."},{"type":"text","text":"ALPHA"}],"usage":{"inputTokens":44,"outputTokens":23,"cacheReadTokens":2048,"reasoningTokens":19}},"sourceEventSeqs":[4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31],"surfaceOp":"append"} +{"type":"step/end","seq":33,"time":1783279419052,"data":{"turn":1,"step":1}} +{"type":"turn/end","seq":34,"time":1783279419052,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl b/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl index 138974d9c1..26577d9d2a 100644 --- a/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl @@ -1,69 +1,69 @@ -{"type":"session","version":0,"id":"fd2713ca-8290-4b32-bbdc-2a2939bc3057","createdAt":1783329009152,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-26ySbT","parentSession":"a6d3b448-ed6f-452d-802b-3c537cb28c2d","seedLength":27} -{"type":"turn/start","seq":0,"time":1783329009095,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329009095,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is SAFFRON. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329009114,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329009115,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-26ySbT.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} -{"type":"assistant/chunk","seq":4,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} -{"type":"assistant/chunk","seq":5,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} -{"type":"assistant/chunk","seq":6,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} -{"type":"assistant/chunk","seq":7,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" wants"}}} -{"type":"assistant/chunk","seq":8,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}} -{"type":"assistant/chunk","seq":9,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" to"}}} -{"type":"assistant/chunk","seq":10,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" remember"}}} -{"type":"assistant/chunk","seq":11,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" a"}}} -{"type":"assistant/chunk","seq":12,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" fact"}}} -{"type":"assistant/chunk","seq":13,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" and"}}} -{"type":"assistant/chunk","seq":14,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" reply"}}} -{"type":"assistant/chunk","seq":15,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" with"}}} -{"type":"assistant/chunk","seq":16,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" OK"}}} -{"type":"assistant/chunk","seq":17,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"."}}} -{"type":"assistant/chunk","seq":18,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"text"}}} -{"type":"assistant/chunk","seq":19,"time":1783329009115,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"OK"}}} -{"type":"assistant/chunk","seq":20,"time":1783329009116,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The user wants me to remember a fact and reply with OK."}}}} -{"type":"assistant/chunk","seq":21,"time":1783329009116,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"OK"}}}} -{"type":"assistant/chunk","seq":22,"time":1783329009116,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":2111,"outputTokens":15,"cacheReadTokens":0,"reasoningTokens":13}}}} -{"type":"assistant/chunk","seq":23,"time":1783329009116,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} -{"type":"assistant/message","seq":24,"time":1783329009116,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"The user wants me to remember a fact and reply with OK."},{"type":"text","text":"OK"}],"usage":{"inputTokens":2111,"outputTokens":15,"cacheReadTokens":0,"reasoningTokens":13}},"sourceEventSeqs":[4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23],"surfaceOp":"append"} -{"type":"step/end","seq":25,"time":1783329009116,"data":{"turn":1,"step":1}} -{"type":"turn/end","seq":26,"time":1783329009116,"data":{"turn":1,"reason":{"kind":"completed"}}} -{"type":"turn/start","seq":27,"time":1783329009152,"data":{"turn":2,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":28,"time":1783329009152,"data":{"content":[{"type":"text","text":"What is the project codeword mentioned earlier in this conversation? Reply with exactly that one word and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":29,"time":1783329009153,"data":{"turn":2,"step":1}} -{"type":"request/header","seq":30,"time":1783329009153,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-26ySbT.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. 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Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":2,"time":1783279415446,"data":{"turn":1,"step":1}} +{"type":"request/header","seq":3,"time":1783279415446,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. 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You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. 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Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. 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Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"assistant/chunk","seq":4,"time":1783279416146,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} +{"type":"assistant/chunk","seq":5,"time":1783279416146,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} +{"type":"assistant/chunk","seq":6,"time":1783279416310,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} +{"type":"assistant/chunk","seq":7,"time":1783279416338,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" wants"}}} +{"type":"assistant/chunk","seq":8,"time":1783279416339,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}} +{"type":"assistant/chunk","seq":9,"time":1783279416339,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" to"}}} +{"type":"assistant/chunk","seq":10,"time":1783279416339,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" remember"}}} +{"type":"assistant/chunk","seq":11,"time":1783279416339,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" a"}}} +{"type":"assistant/chunk","seq":12,"time":1783279416340,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" fact"}}} +{"type":"assistant/chunk","seq":13,"time":1783279416366,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" and"}}} +{"type":"assistant/chunk","seq":14,"time":1783279416366,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" reply"}}} +{"type":"assistant/chunk","seq":15,"time":1783279416394,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" with"}}} +{"type":"assistant/chunk","seq":16,"time":1783279416395,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" OK"}}} +{"type":"assistant/chunk","seq":17,"time":1783279416423,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"."}}} +{"type":"assistant/chunk","seq":18,"time":1783279416423,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"text"}}} +{"type":"assistant/chunk","seq":19,"time":1783279416423,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"OK"}}} +{"type":"assistant/chunk","seq":20,"time":1783279416453,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The user wants me to remember a fact and reply with OK."}}}} +{"type":"assistant/chunk","seq":21,"time":1783279416453,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"OK"}}}} +{"type":"assistant/chunk","seq":22,"time":1783279416453,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":2111,"outputTokens":15,"cacheReadTokens":0,"reasoningTokens":13}}}} +{"type":"assistant/chunk","seq":23,"time":1783279416453,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":24,"time":1783279416455,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"The user wants me to remember a fact and reply with OK."},{"type":"text","text":"OK"}],"usage":{"inputTokens":2111,"outputTokens":15,"cacheReadTokens":0,"reasoningTokens":13}},"sourceEventSeqs":[4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23],"surfaceOp":"append"} +{"type":"step/end","seq":25,"time":1783279416455,"data":{"turn":1,"step":1}} +{"type":"turn/end","seq":26,"time":1783279416455,"data":{"turn":1,"reason":{"kind":"completed"}}} +{"type":"turn/start","seq":27,"time":1783279420404,"data":{"turn":2,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":28,"time":1783279420404,"data":{"content":[{"type":"text","text":"What is the project codeword mentioned earlier in this conversation? Reply with exactly that one word and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":29,"time":1783279420405,"data":{"turn":2,"step":1}} +{"type":"request/header","seq":30,"time":1783279420405,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. 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You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. 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Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). 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It's \"SAFFRON\"."},{"type":"text","text":"SAFFRON"}],"usage":{"inputTokens":91,"outputTokens":29,"cacheReadTokens":2048,"reasoningTokens":25}},"sourceEventSeqs":[31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64],"surfaceOp":"append"} +{"type":"step/end","seq":66,"time":1783279421406,"data":{"turn":2,"step":1}} +{"type":"turn/end","seq":67,"time":1783279421406,"data":{"turn":2,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl index c122e0be43..8f81f749dc 100644 --- a/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl @@ -1,321 +1,321 @@ -{"type":"session","version":0,"id":"a6d3b448-ed6f-452d-802b-3c537cb28c2d","createdAt":1783329009092,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-26ySbT"} -{"type":"turn/start","seq":0,"time":1783329009095,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329009095,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is SAFFRON. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329009114,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329009115,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-26ySbT.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. 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Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. 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a/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl index c79aabd228..d8e67ff114 100644 --- a/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl @@ -1,205 +1,205 @@ -{"type":"session","version":0,"id":"5f68e00f-778f-4f9e-ac37-8b88db4c7aed","createdAt":1783329008407,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-9v8WCR"} -{"type":"turn/start","seq":0,"time":1783329008408,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329008408,"data":{"content":[{"type":"text","text":"Use the subagent tool TWICE, once at a time, to delegate two subtasks to child agents. 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First returned \"ALPHA\", second returned \"BETA\". Now I reply with \"PARENT_DONE\"."}}}} +{"type":"assistant/chunk","seq":198,"time":1783279405527,"data":{"turn":1,"step":3,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"PARENT_DONE"}}}} +{"type":"assistant/chunk","seq":199,"time":1783279405527,"data":{"turn":1,"step":3,"chunk":{"type":"usage","usage":{"inputTokens":107,"outputTokens":34,"cacheReadTokens":2304,"reasoningTokens":29}}}} +{"type":"assistant/chunk","seq":200,"time":1783279405527,"data":{"turn":1,"step":3,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":201,"time":1783279405528,"data":{"turn":1,"step":3,"content":[{"type":"reasoning","text":"Both subagents have returned. First returned \"ALPHA\", second returned \"BETA\". Now I reply with \"PARENT_DONE\"."},{"type":"text","text":"PARENT_DONE"}],"usage":{"inputTokens":107,"outputTokens":34,"cacheReadTokens":2304,"reasoningTokens":29}},"sourceEventSeqs":[162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200],"surfaceOp":"append"} +{"type":"step/end","seq":202,"time":1783279405528,"data":{"turn":1,"step":3}} +{"type":"turn/end","seq":203,"time":1783279405528,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl index 196936dcde..88858591da 100644 --- a/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl @@ -1,34 +1,34 @@ -{"type":"session","version":0,"id":"09370e9a-0306-4c9a-9c5e-1002b83af672","createdAt":1783329008090,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-k0KGst","parentSession":"eea4c8b3-ab82-4cbb-a326-e1fdbdd11ca6"} -{"type":"turn/start","seq":0,"time":1783329008091,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329008091,"data":{"content":[{"type":"text","text":"Reply with exactly the word CHILD_OK and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329008092,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329008092,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. 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Your working\ndirectory is /tmp/acp-snap-cwd-JrLIIO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"assistant/chunk","seq":4,"time":1783279397154,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} +{"type":"assistant/chunk","seq":5,"time":1783279397154,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} +{"type":"assistant/chunk","seq":6,"time":1783279397252,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} +{"type":"assistant/chunk","seq":7,"time":1783279397280,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" wants"}}} +{"type":"assistant/chunk","seq":8,"time":1783279397280,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}} +{"type":"assistant/chunk","seq":9,"time":1783279397280,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" to"}}} +{"type":"assistant/chunk","seq":10,"time":1783279397280,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" reply"}}} +{"type":"assistant/chunk","seq":11,"time":1783279397280,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" with"}}} +{"type":"assistant/chunk","seq":12,"time":1783279397281,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" exactly"}}} +{"type":"assistant/chunk","seq":13,"time":1783279397307,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" the"}}} +{"type":"assistant/chunk","seq":14,"time":1783279397308,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" word"}}} +{"type":"assistant/chunk","seq":15,"time":1783279397308,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" CH"}}} +{"type":"assistant/chunk","seq":16,"time":1783279397335,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"ILD"}}} +{"type":"assistant/chunk","seq":17,"time":1783279397335,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"_OK"}}} +{"type":"assistant/chunk","seq":18,"time":1783279397363,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" and"}}} +{"type":"assistant/chunk","seq":19,"time":1783279397363,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" nothing"}}} +{"type":"assistant/chunk","seq":20,"time":1783279397363,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" else"}}} +{"type":"assistant/chunk","seq":21,"time":1783279397363,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"."}}} +{"type":"assistant/chunk","seq":22,"time":1783279397363,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"text"}}} +{"type":"assistant/chunk","seq":23,"time":1783279397363,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"CH"}}} +{"type":"assistant/chunk","seq":24,"time":1783279397391,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"ILD"}}} +{"type":"assistant/chunk","seq":25,"time":1783279397391,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"_OK"}}} +{"type":"assistant/chunk","seq":26,"time":1783279397392,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The user wants me to reply with exactly the word CHILD_OK and nothing else."}}}} +{"type":"assistant/chunk","seq":27,"time":1783279397392,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"CHILD_OK"}}}} +{"type":"assistant/chunk","seq":28,"time":1783279397392,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":44,"outputTokens":21,"cacheReadTokens":2048,"reasoningTokens":17}}}} +{"type":"assistant/chunk","seq":29,"time":1783279397392,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":30,"time":1783279397392,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"The user wants me to reply with exactly the word CHILD_OK and nothing else."},{"type":"text","text":"CHILD_OK"}],"usage":{"inputTokens":44,"outputTokens":21,"cacheReadTokens":2048,"reasoningTokens":17}},"sourceEventSeqs":[4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29],"surfaceOp":"append"} +{"type":"step/end","seq":31,"time":1783279397393,"data":{"turn":1,"step":1}} +{"type":"turn/end","seq":32,"time":1783279397393,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl index 74f8024e3d..86444be14c 100644 --- a/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl @@ -1,115 +1,115 @@ -{"type":"session","version":0,"id":"eea4c8b3-ab82-4cbb-a326-e1fdbdd11ca6","createdAt":1783329008069,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-k0KGst"} -{"type":"turn/start","seq":0,"time":1783329008071,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329008071,"data":{"content":[{"type":"text","text":"Use the subagent tool exactly once to delegate this subtask to a child agent: 'Reply with exactly the word CHILD_OK and nothing else.' After the subagent returns, reply with the single word PARENT_DONE and stop. Do not use the bash tool."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329008088,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329008088,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-k0KGst.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. 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Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. 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Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. 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Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} -{"type":"assistant/chunk","seq":4,"time":1783329002691,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} -{"type":"assistant/chunk","seq":5,"time":1783329002691,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} -{"type":"assistant/chunk","seq":6,"time":1783329002691,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} -{"type":"assistant/chunk","seq":7,"time":1783329002691,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" wants"}}} -{"type":"assistant/chunk","seq":8,"time":1783329002691,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}} -{"type":"assistant/chunk","seq":9,"time":1783329002691,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" to"}}} -{"type":"assistant/chunk","seq":10,"time":1783329002691,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" reply"}}} -{"type":"assistant/chunk","seq":11,"time":1783329002691,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" with"}}} -{"type":"assistant/chunk","seq":12,"time":1783329002691,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" exactly"}}} -{"type":"assistant/chunk","seq":13,"time":1783329002691,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" the"}}} -{"type":"assistant/chunk","seq":14,"time":1783329002691,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" word"}}} 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-{"type":"assistant/chunk","seq":22,"time":1783329002692,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" any"}}} -{"type":"assistant/chunk","seq":23,"time":1783329002692,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" tools"}}} -{"type":"assistant/chunk","seq":24,"time":1783329002692,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"."}}} -{"type":"assistant/chunk","seq":25,"time":1783329002692,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"text"}}} -{"type":"assistant/chunk","seq":26,"time":1783329002692,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"P"}}} -{"type":"assistant/chunk","seq":27,"time":1783329002692,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"ONG"}}} -{"type":"assistant/chunk","seq":28,"time":1783329002692,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The user wants me to reply with exactly the word \"PONG\" and not use any tools."}}}} -{"type":"assistant/chunk","seq":29,"time":1783329002692,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"PONG"}}}} -{"type":"assistant/chunk","seq":30,"time":1783329002692,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":2095,"outputTokens":23,"cacheReadTokens":0,"reasoningTokens":20}}}} -{"type":"assistant/chunk","seq":31,"time":1783329002692,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} -{"type":"assistant/message","seq":32,"time":1783329002692,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"The user wants me to reply with exactly the word \"PONG\" and not use any tools."},{"type":"text","text":"PONG"}],"usage":{"inputTokens":2095,"outputTokens":23,"cacheReadTokens":0,"reasoningTokens":20}},"sourceEventSeqs":[4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31],"surfaceOp":"append"} -{"type":"step/end","seq":33,"time":1783329002692,"data":{"turn":1,"step":1}} -{"type":"turn/end","seq":34,"time":1783329002692,"data":{"turn":1,"reason":{"kind":"completed"}}} +{"type":"session","version":0,"id":"a407f6bc-310c-4c0e-ad8b-4ffdf1b544b1","createdAt":1783279329590,"cwd":"/tmp/acp-snap-cwd-q0sbE9"} +{"type":"turn/start","seq":0,"time":1783279329596,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":1,"time":1783279329596,"data":{"content":[{"type":"text","text":"Reply with exactly the word: PONG. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":2,"time":1783279329598,"data":{"turn":1,"step":1}} +{"type":"request/header","seq":3,"time":1783279329598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-q0sbE9.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"assistant/chunk","seq":4,"time":1783279330062,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} +{"type":"assistant/chunk","seq":5,"time":1783279330062,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} +{"type":"assistant/chunk","seq":6,"time":1783279330154,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} +{"type":"assistant/chunk","seq":7,"time":1783279330183,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" wants"}}} +{"type":"assistant/chunk","seq":8,"time":1783279330183,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}} +{"type":"assistant/chunk","seq":9,"time":1783279330183,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" to"}}} +{"type":"assistant/chunk","seq":10,"time":1783279330184,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" reply"}}} +{"type":"assistant/chunk","seq":11,"time":1783279330184,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" with"}}} +{"type":"assistant/chunk","seq":12,"time":1783279330184,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" exactly"}}} +{"type":"assistant/chunk","seq":13,"time":1783279330210,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" the"}}} +{"type":"assistant/chunk","seq":14,"time":1783279330211,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" word"}}} +{"type":"assistant/chunk","seq":15,"time":1783279330211,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" \""}}} +{"type":"assistant/chunk","seq":16,"time":1783279330211,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"P"}}} +{"type":"assistant/chunk","seq":17,"time":1783279330211,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"ONG"}}} +{"type":"assistant/chunk","seq":18,"time":1783279330211,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"\""}}} +{"type":"assistant/chunk","seq":19,"time":1783279330238,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" and"}}} +{"type":"assistant/chunk","seq":20,"time":1783279330238,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" not"}}} +{"type":"assistant/chunk","seq":21,"time":1783279330239,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" use"}}} +{"type":"assistant/chunk","seq":22,"time":1783279330239,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" any"}}} +{"type":"assistant/chunk","seq":23,"time":1783279330239,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" tools"}}} +{"type":"assistant/chunk","seq":24,"time":1783279330239,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"."}}} +{"type":"assistant/chunk","seq":25,"time":1783279330268,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"text"}}} +{"type":"assistant/chunk","seq":26,"time":1783279330268,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"P"}}} +{"type":"assistant/chunk","seq":27,"time":1783279330268,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"ONG"}}} +{"type":"assistant/chunk","seq":28,"time":1783279330269,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The user wants me to reply with exactly the word \"PONG\" and not use any tools."}}}} +{"type":"assistant/chunk","seq":29,"time":1783279330269,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"PONG"}}}} +{"type":"assistant/chunk","seq":30,"time":1783279330269,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":2095,"outputTokens":23,"cacheReadTokens":0,"reasoningTokens":20}}}} +{"type":"assistant/chunk","seq":31,"time":1783279330269,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":32,"time":1783279330271,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"The user wants me to reply with exactly the word \"PONG\" and not use any tools."},{"type":"text","text":"PONG"}],"usage":{"inputTokens":2095,"outputTokens":23,"cacheReadTokens":0,"reasoningTokens":20}},"sourceEventSeqs":[4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31],"surfaceOp":"append"} +{"type":"step/end","seq":33,"time":1783279330271,"data":{"turn":1,"step":1}} +{"type":"turn/end","seq":34,"time":1783279330271,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl b/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl index f4b4f1935b..09f6ca18d7 100644 --- a/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl +++ b/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl @@ -1,127 +1,127 @@ -{"type":"session","version":0,"id":"b3724c3d-ce40-4648-afc2-698c2a4f766e","createdAt":1783329003829,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-ltTLSg"} -{"type":"turn/start","seq":0,"time":1783329003831,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329003832,"data":{"content":[{"type":"text","text":"Use the todo_write tool to record a plan with exactly three todos: \"read the code\" (in_progress), \"write the fix\" (pending), \"run the tests\" (pending). Send all three in one todo_write call. Then reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329003850,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329003851,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-ltTLSg.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. 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Now I need to reply with just the word DONE."},{"type":"text","text":"DONE"}],"usage":{"inputTokens":223,"outputTokens":26,"cacheReadTokens":2048,"reasoningTokens":23}},"sourceEventSeqs":[92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122],"surfaceOp":"append"} +{"type":"step/end","seq":124,"time":1783279345691,"data":{"turn":1,"step":2}} +{"type":"turn/end","seq":125,"time":1783279345691,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl b/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl index 3c3f80190b..f2a7d35cdb 100644 --- a/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl @@ -1,103 +1,103 @@ -{"type":"session","version":0,"id":"244fd9ce-1cc7-41ee-bb44-a0ac75db3a04","createdAt":1783329002989,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-SUuJDx"} -{"type":"turn/start","seq":0,"time":1783329002991,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329002992,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo SNAPSHOT_OK. Then reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329003012,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329003012,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-SUuJDx.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. 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You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. 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Now I need to reply with just the single word \"DONE\"."},{"type":"text","text":"DONE"}],"usage":{"inputTokens":166,"outputTokens":31,"cacheReadTokens":2048,"reasoningTokens":28}},"sourceEventSeqs":[63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98],"surfaceOp":"append"} +{"type":"step/end","seq":100,"time":1783279335341,"data":{"turn":1,"step":2}} +{"type":"turn/end","seq":101,"time":1783279335342,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl b/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl index 9bcd10c3c5..3703d26fd5 100644 --- a/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl +++ b/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl @@ -1,264 +1,264 @@ -{"type":"session","version":0,"id":"14101fb2-dd6c-42ca-aeb6-69963d7e54bf","createdAt":1783329004472,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-3G54DA"} -{"type":"turn/start","seq":0,"time":1783329004474,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783329004475,"data":{"content":[{"type":"text","text":"A file named greeting.txt in the current directory contains one word. Use the bash tool to append a second line containing the word WORLD to it (so it has two lines), then read the file back with `cat greeting.txt` to confirm, and reply with the single word DONE. Use a single bash call per action."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783329004495,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329004495,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-3G54DA.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. 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Now I reply with DONE."},{"type":"text","text":"DONE"}],"usage":{"inputTokens":109,"outputTokens":26,"cacheReadTokens":2432,"reasoningTokens":23}},"sourceEventSeqs":[229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259],"surfaceOp":"append"} +{"type":"step/end","seq":261,"time":0,"data":{"turn":1,"step":4}} +{"type":"turn/end","seq":262,"time":0,"data":{"turn":1,"reason":{"kind":"completed"}}} From 5fd647012e83d2dd395b3c6d135ee2178551d4f2 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Mon, 6 Jul 2026 17:34:48 +0800 Subject: [PATCH 034/232] test: make fs policy snapshot portable --- .../snapshots/fs-policy-reject/session.jsonl | 18 +++++++++--------- .../fs-policy-reject/stdout.golden.jsonl | 6 +++--- 2 files changed, 12 insertions(+), 12 deletions(-) diff --git a/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl b/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl index 9da7fd74cd..2e58233309 100644 --- a/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl @@ -180,7 +180,7 @@ {"type":"assistant/chunk","seq":178,"time":1783279386389,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" use"}}} {"type":"assistant/chunk","seq":179,"time":1783279386416,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" bash"}}} {"type":"assistant/chunk","seq":180,"time":1783279386416,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" with"}}} -{"type":"assistant/chunk","seq":181,"time":1783279386416,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" sed"}}} +{"type":"assistant/chunk","seq":181,"time":1783279386416,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" perl"}}} {"type":"assistant/chunk","seq":182,"time":1783279386416,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" to"}}} {"type":"assistant/chunk","seq":183,"time":1783279386444,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" replace"}}} {"type":"assistant/chunk","seq":184,"time":1783279386444,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" \""}}} @@ -203,9 +203,9 @@ {"type":"assistant/chunk","seq":201,"time":1783279386643,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":"\""}}} {"type":"assistant/chunk","seq":202,"time":1783279386643,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":": "}}} {"type":"assistant/chunk","seq":203,"time":1783279386643,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":"\""}}} -{"type":"assistant/chunk","seq":204,"time":1783279386671,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":"sed"}}} -{"type":"assistant/chunk","seq":205,"time":1783279386671,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":" -"}}} -{"type":"assistant/chunk","seq":206,"time":1783279386671,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":"i"}}} +{"type":"assistant/chunk","seq":204,"time":1783279386671,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":"perl"}}} +{"type":"assistant/chunk","seq":205,"time":1783279386671,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":" -0p"}}} +{"type":"assistant/chunk","seq":206,"time":1783279386671,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":"i -e"}}} {"type":"assistant/chunk","seq":207,"time":1783279386671,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":" '"}}} {"type":"assistant/chunk","seq":208,"time":1783279386671,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":"s"}}} {"type":"assistant/chunk","seq":209,"time":1783279386671,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":"/"}}} @@ -232,13 +232,13 @@ {"type":"assistant/chunk","seq":230,"time":1783279386809,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":".txt"}}} {"type":"assistant/chunk","seq":231,"time":1783279386837,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":"\""}}} {"type":"assistant/chunk","seq":232,"time":1783279386838,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":1,"id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","argumentsDelta":"}"}}} -{"type":"assistant/chunk","seq":233,"time":1783279386896,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The edit tool requires reading the file first due to the default fs-policy. However, the user explicitly instructed me NOT to use the read tool. I need to follow the user's instructions. The edit tool returned an error saying it requires reading the file first. I cannot comply with the user's request to not read the file because the tool enforces it. Let me try a different approach - maybe I can use subagent to do this, or use bash to do the replacement. Let me use bash with sed to replace \"blue\" with \"green\" without reading the file."}}}} -{"type":"assistant/chunk","seq":234,"time":1783279386896,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":1,"block":{"type":"tool-call","id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","arguments":"{\"command\": \"sed -i 's/blue/green/g' settings.txt\", \"description\": \"Replace blue with green in settings.txt\"}"}}}} +{"type":"assistant/chunk","seq":233,"time":1783279386896,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The edit tool requires reading the file first due to the default fs-policy. However, the user explicitly instructed me NOT to use the read tool. I need to follow the user's instructions. The edit tool returned an error saying it requires reading the file first. I cannot comply with the user's request to not read the file because the tool enforces it. Let me try a different approach - maybe I can use subagent to do this, or use bash to do the replacement. Let me use bash with perl to replace \"blue\" with \"green\" without reading the file."}}}} +{"type":"assistant/chunk","seq":234,"time":1783279386896,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":1,"block":{"type":"tool-call","id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","arguments":"{\"command\": \"perl -0pi -e 's/blue/green/g' settings.txt\", \"description\": \"Replace blue with green in settings.txt\"}"}}}} {"type":"assistant/chunk","seq":235,"time":1783279386896,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":227,"outputTokens":195,"cacheReadTokens":2048,"reasoningTokens":118}}}} {"type":"assistant/chunk","seq":236,"time":1783279386896,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}} -{"type":"assistant/message","seq":237,"time":1783279386897,"data":{"turn":1,"step":2,"content":[{"type":"reasoning","text":"The edit tool requires reading the file first due to the default fs-policy. However, the user explicitly instructed me NOT to use the read tool. I need to follow the user's instructions. The edit tool returned an error saying it requires reading the file first. I cannot comply with the user's request to not read the file because the tool enforces it. Let me try a different approach - maybe I can use subagent to do this, or use bash to do the replacement. Let me use bash with sed to replace \"blue\" with \"green\" without reading the file."},{"type":"tool-call","id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","arguments":"{\"command\": \"sed -i 's/blue/green/g' settings.txt\", \"description\": \"Replace blue with green in settings.txt\"}"}],"usage":{"inputTokens":227,"outputTokens":195,"cacheReadTokens":2048,"reasoningTokens":118}},"sourceEventSeqs":[77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236],"surfaceOp":"append"} -{"type":"tool/call","seq":238,"time":1783279386897,"data":{"turn":1,"step":2,"callId":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","arguments":"{\"command\": \"sed -i 's/blue/green/g' settings.txt\", \"description\": \"Replace blue with green in settings.txt\"}"}} -{"type":"tool/result","seq":239,"time":1783279386915,"data":{"turn":1,"step":2,"callId":"call_00_SvvpTh6bWybYXoO77NHg8535","content":[{"type":"text","text":"[stderr]\nsed: 1: \"settings.txt\n\": unterminated substitute pattern\n[exit code: 1]"}],"isError":false},"sourceEventSeqs":[238],"surfaceOp":"append"} +{"type":"assistant/message","seq":237,"time":1783279386897,"data":{"turn":1,"step":2,"content":[{"type":"reasoning","text":"The edit tool requires reading the file first due to the default fs-policy. However, the user explicitly instructed me NOT to use the read tool. I need to follow the user's instructions. The edit tool returned an error saying it requires reading the file first. I cannot comply with the user's request to not read the file because the tool enforces it. Let me try a different approach - maybe I can use subagent to do this, or use bash to do the replacement. Let me use bash with perl to replace \"blue\" with \"green\" without reading the file."},{"type":"tool-call","id":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","arguments":"{\"command\": \"perl -0pi -e 's/blue/green/g' settings.txt\", \"description\": \"Replace blue with green in settings.txt\"}"}],"usage":{"inputTokens":227,"outputTokens":195,"cacheReadTokens":2048,"reasoningTokens":118}},"sourceEventSeqs":[77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236],"surfaceOp":"append"} +{"type":"tool/call","seq":238,"time":1783279386897,"data":{"turn":1,"step":2,"callId":"call_00_SvvpTh6bWybYXoO77NHg8535","name":"bash","arguments":"{\"command\": \"perl -0pi -e 's/blue/green/g' settings.txt\", \"description\": \"Replace blue with green in settings.txt\"}"}} +{"type":"tool/result","seq":239,"time":1783279386915,"data":{"turn":1,"step":2,"callId":"call_00_SvvpTh6bWybYXoO77NHg8535","content":[{"type":"text","text":"(no output)"}],"isError":false},"sourceEventSeqs":[238],"surfaceOp":"append"} {"type":"step/end","seq":240,"time":1783279386916,"data":{"turn":1,"step":2}} {"type":"step/start","seq":241,"time":1783279386916,"data":{"turn":1,"step":3}} {"type":"assistant/chunk","seq":242,"time":1783279388121,"data":{"turn":1,"step":3,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-policy-reject/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/fs-policy-reject/stdout.golden.jsonl index 826dbf5eaa..0b6d5dfe33 100644 --- a/examples/acp-agent/tests/snapshots/fs-policy-reject/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-policy-reject/stdout.golden.jsonl @@ -137,7 +137,7 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" use"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" bash"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" sed"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" perl"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" replace"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}} @@ -152,8 +152,8 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" file"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_SvvpTh6bWybYXoO77NHg8535","title":"sed -i 's/blue/green/g' settings.txt","kind":"execute","status":"in_progress","rawInput":"sed -i 's/blue/green/g' settings.txt","content":[{"type":"content","content":{"type":"text","text":"Replace blue with green in settings.txt"}}]}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_SvvpTh6bWybYXoO77NHg8535","status":"completed","content":[{"type":"content","content":{"type":"text","text":"```console\n[stderr]\nsed: 1: \"settings.txt\n\": unterminated substitute pattern\n[exit code: 1]\n```"}}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_SvvpTh6bWybYXoO77NHg8535","title":"perl -0pi -e 's/blue/green/g' settings.txt","kind":"execute","status":"in_progress","rawInput":"perl -0pi -e 's/blue/green/g' settings.txt","content":[{"type":"content","content":{"type":"text","text":"Replace blue with green in settings.txt"}}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_SvvpTh6bWybYXoO77NHg8535","status":"completed","content":[{"type":"content","content":{"type":"text","text":"```console\n(no output)\n```"}}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" bash"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" command"}}}} From 6beed9a883500fb7de88ca2e8ea5e38b021496bc Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Mon, 6 Jul 2026 19:55:46 +0800 Subject: [PATCH 035/232] test: make the timeout-wins race deterministic under fake timers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit CI (node 24/26) failed on the exact-boundary construction: advanceTimersByTime(100) then an immediate upstream.abort() let the manual abort win the race on some runtimes, so timeoutOf returned undefined. Advance unambiguously past the deadline and assert the timeout classification before firing the late abort — that late abort is now asserted as a no-op, which is the real first-cause-wins invariant. --- packages/util/timeout/tests/timeout.spec.ts | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/packages/util/timeout/tests/timeout.spec.ts b/packages/util/timeout/tests/timeout.spec.ts index 57066a4f54..588317f48d 100644 --- a/packages/util/timeout/tests/timeout.spec.ts +++ b/packages/util/timeout/tests/timeout.spec.ts @@ -99,7 +99,11 @@ describe('deadline — fuse with upstream', () => { try { const upstream = new AbortController() using d = deadline(upstream.signal, 100, 'WEB_FETCH_TIMEOUT') - vi.advanceTimersByTime(100) // timer fires first + vi.advanceTimersByTime(150) // past the 100ms deadline: the timer fires first + expect(d.signal.aborted).toBe(true) + expect(timeoutOf(d.signal)?.code).toBe('WEB_FETCH_TIMEOUT') + // A later upstream abort is a no-op on the already-aborted fused signal: + // AbortSignal.any keeps the FIRST cause, so the timeout classification stands. upstream.abort('too late') expect(timeoutOf(d.signal)?.code).toBe('WEB_FETCH_TIMEOUT') } finally { From e70227d5810a94af2ec084de35c91a6ac86bcf32 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 6 Jul 2026 20:59:47 +0800 Subject: [PATCH 036/232] =?UTF-8?q?workflow:=20pin=20the=20spec=20engine's?= =?UTF-8?q?=20concurrency=20=E2=80=94=20the=20auto=20default=20is=20one=20?= =?UTF-8?q?slot=20on=20small=20CI=20runners?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The two tests that wait for two children IN FLIGHT (the pipeline no-barrier test and the dropped-promise cancellation test) inherited the engine's auto-resolved maxConcurrentAgents, which is min(16, max(1, cores - 2)) — exactly 1 on the 2-core CI runner, so the second child never started and vi.waitFor timed out. Reproduced locally under taskset -c 0,1; the full spec passes there with the helper pinning a fixed ceiling. Tests about the ceiling itself keep their explicit overrides, and the auto-resolve arm stays covered by the default-config provider tests. --- packages/workflow/workflow-vm/tests/workflow-vm.spec.ts | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts index a4058303ea..ac037bdb04 100644 --- a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts +++ b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts @@ -97,7 +97,10 @@ async function setup(options?: SetupOptions) { options?.disposeDelayMs ?? 0, ) ctx.subagents.registerProvider(provider) - await ctx.plugin(VmWorkflowEngine, { provider: 'stub', ...options?.config }) + // A fixed concurrency ceiling: the auto-resolved default is machine-derived + // (cores - 2, floored at 1), so tests that expect N children in flight + // would wedge on small CI runners. Tests about the ceiling override it. + await ctx.plugin(VmWorkflowEngine, { provider: 'stub', maxConcurrentAgents: 8, ...options?.config }) return { ctx, provider, parent: fakeParent() } } From db4a39b02454f404c620e8efab06a9e469d4036f Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 6 Jul 2026 21:02:41 +0800 Subject: [PATCH 037/232] workflow: close the review-found cancellation and child-lifecycle gaps MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Three review findings on the engine's child seam, one mechanism each: - Cancellation now bridges to run.cancel() on every in-flight child, not just the shared request signal — the subagent seam leaves a provider free to honor either channel, so the consumer drives both (listener removed in the child finally). - A child result REJECTION (an infrastructure fault the seam allows) now emits the paired workflow/agent-end before propagating, and propagates as a fatal WorkflowError with the new AGENT_RESULT code — previously it skipped agent-end (permanently open child for seq-matching observers) and dissolved to a per-item null inside parallel()/pipeline(), letting a broken provider read as an ordinary failed child. A rejection landing after cancel stays a cancellation (cancelled outcome + CANCELLED). - Every hook now guards its entry with a shared throwIfCancelled(): phase()/log() no longer emit observer events after a script caught an earlier cancelled rejection, and parallel()/pipeline() refuse entry — cancellation is the next HOOK boundary, not just the next agent(). --- docs/cordis-catalog/services.md | 2 +- packages/workflow/workflow-vm/src/runtime.ts | 53 +++++++-- .../workflow-vm/tests/workflow-vm.spec.ts | 102 +++++++++++++++++- packages/workflow/workflow/src/index.ts | 4 + 4 files changed, 148 insertions(+), 13 deletions(-) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index f1a61e2ecd..772a70f035 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -242,7 +242,7 @@ Semantics every implementation must honor: abstract start(request: WorkflowStartRequest): WorkflowRun ``` -Source: [`packages/workflow/workflow/src/index.ts:194`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:198`](../../packages/workflow/workflow/src/index.ts) ## Inherited `ctx` members (cordis core + loader/hmr/timer) diff --git a/packages/workflow/workflow-vm/src/runtime.ts b/packages/workflow/workflow-vm/src/runtime.ts index b2a117fdcc..f1901ffaf7 100644 --- a/packages/workflow/workflow-vm/src/runtime.ts +++ b/packages/workflow/workflow-vm/src/runtime.ts @@ -17,10 +17,11 @@ * realm-side until they cross through a hook or the final return. * * Failure discipline: fatal {@link WorkflowError}s (bad hook arguments, - * unsupported options/schemas, tripped caps, seam start failures, - * cancellation) ALWAYS propagate through `parallel`/`pipeline` — recognized - * by host `instanceof`, which a script cannot forge — and the per-item `null` - * is reserved for child-run failures and ordinary in-stage script errors. + * unsupported options/schemas, tripped caps, seam start failures and result + * rejections, cancellation) ALWAYS propagate through `parallel`/`pipeline` — + * recognized by host `instanceof`, which a script cannot forge — and the + * per-item `null` is reserved for child-run failures and ordinary in-stage + * script errors. * Every hook-returned promise gets a no-op rejection consumer attached, so a * script that drops a promise (fires an `agent()` without awaiting it) cannot * surface an unhandled rejection when cancellation rejects it — the app boot @@ -206,6 +207,17 @@ export class WorkflowExecution { return this.cancelReason !== undefined } + /** + * Shared hook entry guard: after {@link cancel}, EVERY hook throws + * `CANCELLED` at its next call — cancellation is the next HOOK boundary, + * not just the next `agent()`, so a script that caught one cancelled + * rejection cannot keep emitting progress through `phase`/`log` or enter a + * combinator. + */ + private throwIfCancelled(): void { + if (this.isCancelled()) throw this.cancelledError() + } + /** * Cancel the run: children abort (the shared signal), waiting `agent()` * slots reject, and every future hook call throws `CANCELLED` — the script @@ -358,7 +370,7 @@ export class WorkflowExecution { /** The `agent(prompt, opts)` hook. */ private async agent(rawPrompt: unknown, rawOpts: unknown): Promise { - if (this.isCancelled()) throw this.cancelledError() + this.throwIfCancelled() if (typeof rawPrompt !== 'string' || rawPrompt.length === 0) { throw new WorkflowError('agent() requires a non-empty prompt string', 'INVALID_ARGUMENT') } @@ -381,7 +393,7 @@ export class WorkflowExecution { // after its release — a cancel() landing in either window must not // start a child (it would carry an ALREADY-aborted signal, which a // provider subscribing only to future abort events would never see). - if (this.isCancelled()) throw this.cancelledError() + this.throwIfCancelled() let run try { run = this.ctx.subagents.start(this.limits.provider, { @@ -396,8 +408,30 @@ export class WorkflowExecution { } const info: WorkflowAgentInfo = { seq, label, ...phase !== undefined ? { phase } : {}, childId: run.id } this.observer.agentStart(info) + // Cancellation bridges to run.cancel() as well as the request signal: + // the seam leaves a provider free to honor either channel, so the + // consumer must drive both. The signal cannot be aborted yet (the block + // since the post-acquire check is synchronous), so the listener always + // arms; `once` plus the finally removal keep it leak-free. + const onAbort = (): void => { run.cancel(this.cancelReason) } + this.controller.signal.addEventListener('abort', onAbort, { once: true }) try { - const result = await run.result + let result + try { + result = await run.result + } catch (error: unknown) { + // The seam allows `result` to reject for an INFRASTRUCTURE fault — + // distinct from a child that failed and resolved. Pair the + // lifecycle before propagating, and propagate FATAL: an ordinary + // throw would dissolve to a per-item null inside the combinators, + // and a broken provider must not read as a failed child. + if (this.isCancelled()) { + this.observer.agentEnd({ ...info, outcome: 'cancelled' }) + throw this.cancelledError() + } + this.observer.agentEnd({ ...info, outcome: 'failed' }) + throw new WorkflowError(`child agent run failed: ${renderThrown(error)}`, 'AGENT_RESULT', { cause: error }) + } if (result.stopReason === 'completed') { if (opts.schema !== undefined) { // The provider honored outputSchema (capability-gated at start), so @@ -421,6 +455,7 @@ export class WorkflowExecution { this.observer.agentEnd({ ...info, outcome: 'failed' }) return null } finally { + this.controller.signal.removeEventListener('abort', onAbort) await run.dispose() } } finally { @@ -476,6 +511,7 @@ export class WorkflowExecution { /** The `parallel(thunks)` hook: each thunk caught → `null`; fatal errors propagate. */ private async parallel(rawThunks: unknown): Promise { + this.throwIfCancelled() if (!Array.isArray(rawThunks)) { throw new WorkflowError('parallel() requires an array of zero-argument functions', 'INVALID_ARGUMENT') } @@ -501,6 +537,7 @@ export class WorkflowExecution { /** The `pipeline(items, ...stages)` hook: per-item stage chains, NO cross-stage barrier. */ private async pipeline(rawItems: unknown, rawStages: unknown[]): Promise { + this.throwIfCancelled() if (!Array.isArray(rawItems)) { throw new WorkflowError('pipeline() requires an items array', 'INVALID_ARGUMENT') } @@ -542,6 +579,7 @@ export class WorkflowExecution { /** The `phase(title)` hook: sets the current label for subsequent `agent()` calls and notifies observers. */ private phase(title: unknown): void { + this.throwIfCancelled() if (typeof title !== 'string' || title.length === 0) { throw new WorkflowError('phase() requires a non-empty title string', 'INVALID_ARGUMENT') } @@ -551,6 +589,7 @@ export class WorkflowExecution { /** The `log(message)` hook: narration to observers. */ private log(message: unknown): void { + this.throwIfCancelled() if (typeof message !== 'string') { throw new WorkflowError('log() requires a message string', 'INVALID_ARGUMENT') } diff --git a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts index ac037bdb04..1dc4833426 100644 --- a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts +++ b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts @@ -459,7 +459,7 @@ describe('dsh-workflow-vm', () => { expect((result.value as { message: string }).message).toContain('"bogus" is not recognized') }) - it('a non-WorkflowError host failure (a rejecting provider result) reaches the script raw', async () => { + it('a rejecting provider result is an infrastructure fault: fatal AGENT_RESULT, agent-end paired, no combinator dissolve', async () => { const ctx = new Context() await ctx.plugin(SubagentService) const provider: SubagentProvider = { @@ -475,11 +475,22 @@ describe('dsh-workflow-vm', () => { } ctx.subagents.registerProvider(provider) await ctx.plugin(VmWorkflowEngine, { provider: 'rejecting' }) - const result = await run(ctx, fakeParent(), script(` - try { await agent('p'); return 'unreachable' } catch (e) { return { name: e.name, message: e.message } } + const ends: unknown[] = [] + ctx.on('workflow/agent-end', (_info, agent) => { ends.push(agent) }) + // Direct await: the script reads the typed fields (a host object, so + // realm instanceof is false — same as every hook failure). + const direct = await run(ctx, fakeParent(), script(` + try { await agent('p'); return 'unreachable' } catch (e) { return { name: e.name, code: e.code, fatal: e.fatal, message: e.message } } `)) - expect(result.value).toMatchObject({ name: 'Error' }) - expect((result.value as { message: string }).message).toContain('backend exploded') + expect(direct.value).toMatchObject({ name: 'WorkflowError', code: 'AGENT_RESULT', fatal: true }) + expect((direct.value as { message: string }).message).toContain('backend exploded') + // The child's lifecycle stays paired even though result never resolved. + expect(ends).toEqual([expect.objectContaining({ seq: 1, outcome: 'failed' })]) + // Through a combinator the fault PROPAGATES (fatal) — a broken provider + // must not dissolve into the per-item null and read as a failed child. + const throughParallel = await run(ctx, fakeParent(), script("return await parallel([() => agent('p')])")) + expect(throughParallel.stopReason).toBe('error') + expect(throughParallel.error).toContain('backend exploded') }) it('phase()/log() throw host WorkflowErrors synchronously on misuse', async () => { @@ -542,6 +553,87 @@ describe('dsh-workflow-vm', () => { await handle.dispose() }) + it('cancellation bridges to run.cancel() on every in-flight child, not just the request signal', async () => { + const { ctx, parent, provider } = await setup({ manual: true }) + const handle = ctx.workflows.start({ + script: script("return await parallel([() => agent('a'), () => agent('b')])"), + parent, + }) + await vi.waitFor(() => { expect(provider.runs.length).toBe(2) }) + handle.cancel('bridged') + expect((await handle.result).stopReason).toBe('cancelled') + // The seam leaves a provider free to honor run.cancel() rather than the + // request signal, so the engine must drive BOTH channels per child. + expect(provider.runs.map(r => r.cancelled)).toEqual(['bridged', 'bridged']) + await handle.dispose() + }) + + it('a provider whose result REJECTS on abort still gets a paired cancelled agent-end, and the run reports cancelled', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + // The seam allows result to reject for infrastructure faults; a backend + // that tears down uncleanly on abort exercises the rejection path WHILE + // the run is cancelled — which must stay a cancellation, not AGENT_RESULT. + const provider: SubagentProvider = { + name: 'reject-on-abort', + capabilities: { outputSchema: true, depthLimit: true, toolFilter: true }, + inheritsParentContext: false, + start: request => ({ + id: AgentId('crashing-child'), + result: new Promise((_, reject) => { + request.signal?.addEventListener('abort', () => { reject(new Error('backend crashed on abort')) }, { once: true }) + }), + cancel: () => { /* the signal listener above is the teardown */ }, + dispose: () => Promise.resolve(), + }), + } + ctx.subagents.registerProvider(provider) + await ctx.plugin(VmWorkflowEngine, { provider: 'reject-on-abort' }) + const starts: unknown[] = [] + const ends: unknown[] = [] + ctx.on('workflow/agent-start', (_info, agent) => { starts.push(agent) }) + ctx.on('workflow/agent-end', (_info, agent) => { ends.push(agent) }) + const handle = ctx.workflows.start({ script: script("return await agent('doomed')"), parent: fakeParent() }) + await vi.waitFor(() => { expect(starts.length).toBe(1) }) + handle.cancel('user aborted') + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + expect(result.error).toContain('user aborted') + expect(ends).toEqual([expect.objectContaining({ seq: 1, outcome: 'cancelled' })]) + await handle.dispose() + }) + + it('after cancellation EVERY hook throws at entry — phase/log/parallel/pipeline, not just agent()', async () => { + const { ctx, parent, provider } = await setup({ manual: true }) + let cancelled = false + const postCancel: string[] = [] + ctx.on('workflow/phase', (_info, title) => { if (cancelled) postCancel.push(`phase:${title}`) }) + ctx.on('workflow/log', (_info, message) => { if (cancelled) postCancel.push(`log:${message}`) }) + const handle = ctx.workflows.start({ + // The script survives each throw by catching, so every guarded hook is + // actually ATTEMPTED after the cancel; the run still reports cancelled. + script: script(` + phase('before') + try { await agent('x') } catch (e) {} + try { phase('after') } catch (e) {} + try { log('after') } catch (e) {} + try { await parallel([() => 'ran']) } catch (e) {} + try { await pipeline(['item'], p => p) } catch (e) {} + return 'survived by catching' + `), + parent, + }) + await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + cancelled = true + handle.cancel('stop everything') + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + // No post-cancel progress ever reached observers, and no child started. + expect(postCancel).toEqual([]) + expect(provider.runs.length).toBe(1) + await handle.dispose() + }) + it('an already-aborted request signal cancels before any child starts', async () => { const { ctx, parent, provider } = await setup({ manual: true }) const controller = new AbortController() diff --git a/packages/workflow/workflow/src/index.ts b/packages/workflow/workflow/src/index.ts index 83b1560563..31b9eed038 100644 --- a/packages/workflow/workflow/src/index.ts +++ b/packages/workflow/workflow/src/index.ts @@ -127,6 +127,9 @@ export type WorkflowEventName = * subset (see dsh-tools). * - `AGENT_CAP` / `ITEM_CAP` — the run/agent caps tripped. * - `AGENT_START` — the subagent seam refused to start a child. + * - `AGENT_RESULT` — a child's `result` REJECTED: an infrastructure fault at + * the subagent seam, distinct from a child that failed and resolved (which + * is the per-item `null`, never an error). * - `RESULT_UNSERIALIZABLE` — a value crossing the script/host value boundary * is not plain JSON data. * - `CANCELLED` — the run was cancelled; pending and future hooks reject @@ -141,6 +144,7 @@ export type WorkflowErrorCode = | 'AGENT_CAP' | 'ITEM_CAP' | 'AGENT_START' + | 'AGENT_RESULT' | 'RESULT_UNSERIALIZABLE' | 'CANCELLED' From 3987425547eb302e176d86821cf8bc6d3ed5e094 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 6 Jul 2026 21:03:40 +0800 Subject: [PATCH 038/232] subagent-inprocess: stop the structured nudge loop once cancellation lands MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A cancel that lands AFTER a child's clean turn end but before the nudge continuation runs clears nothing — child.cancel() only kills queued or running work — so the loop's turn-state check alone let a later child.send() spend a fresh post-cancellation turn (and even capture a structured result the caller had already abandoned). The loop condition now also reads the run's own cancelled flag, re-evaluated after every whenIdle(), through an accessor because closure assignments are invisible to control-flow narrowing (an inline read lints always-true). readResult keeps the outcome honest on this path: a completed-but- uncaptured turn maps to aborted, not error, when a cancel is why the nudging stopped — the cancel contract outranks the schema shortfall. --- .../subagent/subagent-inprocess/src/index.ts | 24 ++++++++++++++----- .../tests/structured.spec.ts | 19 +++++++++++++++ 2 files changed, 37 insertions(+), 6 deletions(-) diff --git a/packages/subagent/subagent-inprocess/src/index.ts b/packages/subagent/subagent-inprocess/src/index.ts index 93983e420c..381f94acba 100644 --- a/packages/subagent/subagent-inprocess/src/index.ts +++ b/packages/subagent/subagent-inprocess/src/index.ts @@ -171,6 +171,10 @@ export function startInProcessRun( // `turn/end` is logged — settles as `aborted` (honoring the cancel contract) // rather than falling through to the no-turn `error` mapping. let cancelled = false + // An accessor, not an inline read: `cancelled` mutates from closures (the + // abort listener, run.cancel), which control-flow narrowing cannot see — an + // inline `!cancelled` in the nudge condition reads as always-true. + const isCancelled = (): boolean => cancelled const requestCancel = (reason: string): void => { cancelled = true child.cancel(reason) @@ -191,12 +195,17 @@ export function startInProcessRun( // Nudge loop: a child that finished a turn CLEANLY without calling // structured_output gets re-prompted, up to the backend-configured // retry count. An errored/aborted turn is not nudged — its failure is - // the honest result. (This also covers a cancel: a cancelled turn ends - // `aborted`, and a pre-turn cancel leaves no `turn/end` at all, so - // neither reads `completed`.) + // the honest result (a cancelled turn ends `aborted`, and a pre-turn + // cancel leaves no `turn/end` at all, so neither reads `completed`). + // `!cancelled` closes the remaining window: a cancel landing AFTER a + // clean turn end clears nothing — `child.cancel()` only kills + // queued/running work — so without it the next `send` would spend a + // fresh post-cancellation turn; the condition re-evaluates after + // every `whenIdle()`, so a mid-nudge cancel stops the loop at the + // next boundary too. let nudges = options.structuredNudgeRetries while ( - structured.captured(child) === undefined && nudges > 0 + !isCancelled() && structured.captured(child) === undefined && nudges > 0 && lastOwnTurnEnd(child, seedLength)?.data.reason.kind === 'completed' ) { nudges -= 1 @@ -204,7 +213,7 @@ export function startInProcessRun( await child.whenIdle() } } - return readResult(child, seedLength, cancelled, structured ? { captured: structured.captured(child) } : undefined) + return readResult(child, seedLength, isCancelled(), structured ? { captured: structured.captured(child) } : undefined) } finally { request.signal?.removeEventListener('abort', onAbort) if (structured) { @@ -266,7 +275,10 @@ function readResult( : toStopReason(lastEnd?.data.reason) if (structured) { if (structured.captured) return { output, structured: structured.captured.value, stopReason } - if (stopReason === 'completed') return { output, stopReason: 'error' } + // No capture on a cleanly-completed turn: an ERROR when the run was left + // to finish (the nudges ran out), but ABORTED when a cancel is why the + // nudging stopped — the cancel contract outranks the schema shortfall. + if (stopReason === 'completed') return { output, stopReason: cancelled ? 'aborted' : 'error' } } return { output, stopReason } } diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index be231f63e4..c8ca489451 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -179,6 +179,25 @@ describe('in-process structured output', () => { await run.dispose() }) + it('a cancel landing after a clean turn end stops the nudge loop: no post-cancellation turn is spent', async () => { + const { ctx, parent, adapter } = await setup([textResponse('prose, no capture')], { nudges: 3 }) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + const child = ctx.agents.get(run.id)! + // Cancel synchronously inside the first turn's end recording — after the + // turn reads `completed`, before the nudge continuation resumes. The turn + // state alone cannot see this cancel (`child.cancel()` only clears + // queued/running work), so without the loop's own cancelled check the + // next send would spend a fresh child turn after the caller cancelled. + ctx.on('session/event', (session, event) => { + if (session === child.session && event.type === 'turn/end') run.cancel('cancelled between turn end and nudge') + }) + const result = await run.result + expect(result.stopReason).toBe('aborted') + // Exactly one model request: the nudge turn never ran. + expect(adapter.requests.length).toBe(1) + await run.dispose() + }) + it('rejects a schema outside the subset loud, before any child exists', async () => { const { ctx, parent } = await setup([]) expect(() => ctx.subagents.start('spawn', structuredRequest(parent, { From 9688870da31c74e77d0b34295e10bf468a9d4c6a Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 6 Jul 2026 21:04:20 +0800 Subject: [PATCH 039/232] =?UTF-8?q?docs(workflow):=20admit=20the=20node:vm?= =?UTF-8?q?=20escape=20concretely=20=E2=80=94=20absent=20globals=20are=20s?= =?UTF-8?q?urface,=20not=20containment?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The review's critical finding: the engine README and the tool description read as if the missing filesystem/network/Node globals were enforced, but a script can reach the host Function constructor via globalThis.constructor.constructor and from it process and every Node builtin. Per the trust premise this is ACCEPTED (model-written scripts, bash-equivalent trust; genuine sandboxing is the deferred engine swap already listed) — but the docs must say so instead of implying a wall. The trust-premise sections (engine README, module doc, RFC) now name the escape and its acceptance; the model-facing tool description says the APIs are not PROVIDED rather than implying they are prevented. --- .../implemented/feature/2026-07-05-dynamic-workflows.md | 2 +- docs/tool-catalog/tools.md | 2 +- packages/workflow/tool-workflow/src/index.ts | 2 +- packages/workflow/workflow-vm/README.md | 4 ++-- packages/workflow/workflow-vm/src/index.ts | 9 ++++++--- 5 files changed, 11 insertions(+), 8 deletions(-) diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index 7d44ec91db..17c26760be 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -22,7 +22,7 @@ One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferre ### The engine (dsh-workflow-vm): in-process node:vm -**Trust premise (governs every engine decision below)**: workflow scripts are MODEL-WRITTEN — the same trust level as the model's existing bash access — so the engine defends against BUGGY scripts, never hostile ones. In scope: `result` never rejects, no unhandled rejections from dropped hook promises, loud rejection of values JSON cannot carry, fatal-vs-null hook discipline, cancellation that always frees the caller. Out of scope, deliberately: adversarial values (throwing/spinning accessors, proxies with hostile traps, prototype forgery, `prepareStackTrace` hijack) — host code MAY run script code while reading script values, and that is accepted, because a hostile script can already occupy the event loop forever with a synchronous spin past its first await; containing its error VALUES while conceding it the event loop would be cost without a threat model. Genuine hardening is an engine swap behind the seam (worker/isolated-vm gets value isolation by serialization for free), not incremental host-side defenses. +**Trust premise (governs every engine decision below)**: workflow scripts are MODEL-WRITTEN — the same trust level as the model's existing bash access — so the engine defends against BUGGY scripts, never hostile ones. In scope: `result` never rejects, no unhandled rejections from dropped hook promises, loud rejection of values JSON cannot carry, fatal-vs-null hook discipline, cancellation that always frees the caller. Out of scope, deliberately: adversarial values (throwing/spinning accessors, proxies with hostile traps, prototype forgery, `prepareStackTrace` hijack) AND Node-API escape from the context — the vm context shares object machinery with the host, so a script can reach the host `Function` constructor (`globalThis.constructor.constructor`) and from it `process` and every Node builtin; the absent globals are API surface, not containment. Host code MAY run script code while reading script values, and that is accepted, because a hostile script can already occupy the event loop forever with a synchronous spin past its first await; containing its error VALUES while conceding it the event loop would be cost without a threat model. Genuine hardening is an engine swap behind the seam (worker/isolated-vm gets value isolation by serialization for free), not incremental host-side defenses. **Why node:vm and not isolated-vm/worker threads**: isolated-vm is in maintenance mode, needs `--no-node-snapshot` on EVERY consumer process (including the published bins) on Node ≥ 20, and falls back to node-gyp source builds; a worker-thread engine turns every hook into RPC and complicates the per-file coverage gate. Under the trust premise, in-process is enough. Accepted, documented limitations: `start()` blocks the caller for the script's initial synchronous slice (bounded by the vm timeout); that timeout covers ONLY the initial slice, so a synchronous spin past it (an await continuation, a thenable's `then` invoked by promise resolution — a returned thenable resolves per JavaScript semantics, which is what makes an un-awaited `return agent('x')` work — or script code the host runs while rendering a thrown value) cannot be killed in-process; `dispose()` cancels, waits a bounded grace for the script to settle and its children to finish disposing, then abandons. diff --git a/docs/tool-catalog/tools.md b/docs/tool-catalog/tools.md index 76176dae86..b32c10e31f 100644 --- a/docs/tool-catalog/tools.md +++ b/docs/tool-catalog/tools.md @@ -293,7 +293,7 @@ Script-body hooks: Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. -Constraints: concurrency and total-agent caps apply; `Date.now()`, `Math.random()`, and argless `new Date()` throw (pass timestamps via `args`); no filesystem, network, timers, or Node.js APIs — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. +Constraints: concurrency and total-agent caps apply; `Date.now()`, `Math.random()`, and argless `new Date()` throw (pass timestamps via `args`); no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. ```json { diff --git a/packages/workflow/tool-workflow/src/index.ts b/packages/workflow/tool-workflow/src/index.ts index a116866887..4df4d6aba1 100644 --- a/packages/workflow/tool-workflow/src/index.ts +++ b/packages/workflow/tool-workflow/src/index.ts @@ -66,7 +66,7 @@ Script-body hooks: Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item \`null\`. -Constraints: concurrency and total-agent caps apply; \`Date.now()\`, \`Math.random()\`, and argless \`new Date()\` throw (pass timestamps via \`args\`); no filesystem, network, timers, or Node.js APIs — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.` +Constraints: concurrency and total-agent caps apply; \`Date.now()\`, \`Math.random()\`, and argless \`new Date()\` throw (pass timestamps via \`args\`); no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.` type WorkflowCallArgs = { script: string; args?: Record } diff --git a/packages/workflow/workflow-vm/README.md b/packages/workflow/workflow-vm/README.md index 0ec1116cb7..e81e74dc7e 100644 --- a/packages/workflow/workflow-vm/README.md +++ b/packages/workflow/workflow-vm/README.md @@ -4,13 +4,13 @@ The first [`WorkflowService`](../workflow/README.md) implementation: an in-proce ## Trust premise -Workflow scripts are **model-written** — the same trust level as the model's existing bash access — so this engine defends against **buggy** scripts, never hostile ones. vm is NOT a security boundary and no attempt is made to contain adversarial values: property reads on script values may run script code (a getter, a `toString`, a proxy trap) on the host stack, and a script determined to hang the process can simply spin past its first await (see the limitations below). What the engine DOES guarantee, because benign scripts hit these constantly: `result` never rejects, a dropped hook promise never becomes an unhandled rejection (the app boot layer exits the process on those), values that JSON cannot carry are rejected **loud** instead of silently mangled, and hook misuse is fatal instead of dissolving into a per-item `null`. Genuine sandboxing is an engine swap behind the seam (worker-thread/isolated-vm, where the boundary is serialization by construction), not incremental host-side defenses here. +Workflow scripts are **model-written** — the same trust level as the model's existing bash access — so this engine defends against **buggy** scripts, never hostile ones. vm is NOT a security boundary and no attempt is made to contain adversarial values: property reads on script values may run script code (a getter, a `toString`, a proxy trap) on the host stack, and a script determined to hang the process can simply spin past its first await (see the limitations below). Concretely, the context is **escapable by construction**: `node:vm` shares object machinery with the host, so a script can reach the host `Function` constructor (`globalThis.constructor.constructor`) and from it `process` and every Node builtin — the absent globals and determinism bans are API surface that keeps honest scripts portable and resume-compatible, not walls. What the engine DOES guarantee, because benign scripts hit these constantly: `result` never rejects, a dropped hook promise never becomes an unhandled rejection (the app boot layer exits the process on those), values that JSON cannot carry are rejected **loud** instead of silently mangled, and hook misuse is fatal instead of dissolving into a per-item `null`. Genuine sandboxing is an engine swap behind the seam (worker-thread/isolated-vm, where the boundary is serialization by construction), not incremental host-side defenses here. ## The script contract it executes - **Meta extraction** (`extractMeta`): a string/comment-aware brace scanner finds the leading `export const meta` literal (template interpolation rejected — the literal must be pure), evaluates it ALONE in an empty timed vm context, materializes the result to plain JSON data, validates the shape (`name`/`description` required; unknown fields rejected loud), and blanks the statement line-preservingly so error stacks keep the script's own line numbers. - **Hooks**: `agent(prompt, {label, phase, schema, model})` (schema = the [structured-output subset](../../core/tools/README.md), forwarded as `outputSchema`; result = validated object, or final text without a schema; a failed child resolves `null`), `parallel(thunks)`, `pipeline(items, ...stages)` with NO cross-stage barrier and `(prev, item, index)` stage callbacks, `phase(title)`, `log(message)`, and the `args` global. Anything else — `effort`/`isolation`/`agentType`, unknown options, malformed arguments, schemas outside the subset — throws a FATAL `WorkflowError` that `parallel`/`pipeline` re-throw rather than nulling (see the seam README's failure discipline). -- **Determinism bans**: `Date.now()`, `Math.random()`, and argless `new Date()` throw (kept even though resume is deferred, so scripts stay resume-compatible); no timers, filesystem, or Node APIs exist in the context. +- **Determinism bans**: `Date.now()`, `Math.random()`, and argless `new Date()` throw (kept even though resume is deferred, so scripts stay resume-compatible); no timers, filesystem, or Node APIs are injected into the context (absence is API surface, not containment — see the trust premise). ## The value boundary diff --git a/packages/workflow/workflow-vm/src/index.ts b/packages/workflow/workflow-vm/src/index.ts index 9b8c646aa9..c1300427a2 100644 --- a/packages/workflow/workflow-vm/src/index.ts +++ b/packages/workflow/workflow-vm/src/index.ts @@ -7,9 +7,12 @@ * TRUST PREMISE: scripts are MODEL-WRITTEN — the same trust level as the * model's existing bash access — so this engine defends against BUGGY * scripts, never hostile ones. vm is NOT a security boundary and no attempt - * is made to contain adversarial values (see ./realm.ts); genuine sandboxing - * is an engine swap behind the seam (worker-thread/isolated-vm), not - * incremental host-side defenses here. + * is made to contain adversarial values (see ./realm.ts); the context is + * escapable by construction (the host `Function` constructor is reachable via + * `globalThis.constructor.constructor`, and `process` from there), so the + * absent globals are API surface, not containment. Genuine sandboxing is an + * engine swap behind the seam (worker-thread/isolated-vm), not incremental + * host-side defenses here. * * Engine limitations, documented as the accepted cost of the in-process * mechanism: From 4641f1a851b4579adb3cd7ccd50ba53b4102ce04 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Tue, 7 Jul 2026 09:26:47 +0800 Subject: [PATCH 040/232] chore: absorb the no-nudge seam into the workflow tree The parent branch dropped structuredNudgeRetries; the two workflow-side test setups stop passing it, and the RFC's foundation paragraph now describes the current design (final-ASSEMBLY enforcement logged via request/header, the post-capture pre-execute deny, the start() schema snapshot, no re-prompt) instead of the retired agent/request + nudge shape. --- docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md | 2 +- packages/workflow/workflow-vm/tests/integration.spec.ts | 2 +- packages/workflow/workflow-vm/tests/workflow.e2e.ts | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index 17c26760be..7bf09f742c 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -36,7 +36,7 @@ A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, awai ### The foundation: structured output on the subagent seam -`agent({schema})` needs `SubagentStartRequest.outputSchema` to actually work; it was vocabulary without an implementation (`outputSchema: false` everywhere). Implemented in `dsh-subagent-inprocess` for both in-process backends: a globally registered `structured_output` capture tool whose per-child schema is enforced by a `prepend: true` `agent/request` listener doing FINAL-REQUEST enforcement (post-processing `await next()` — cooperative mutation would not survive a downstream listener returning a replacement request; the listener also appends the calling instruction to the request's `system` text, since `AgentOptions` carries no per-agent prompt field), a `prepend: true` `agent/turn-continuation` veto after capture (no wasted extra model step, and an earlier-registered force-continue listener cannot short-circuit it), validation-retry in-turn via `ToolArgsError`, and a clean-finish nudge loop (`structuredNudgeRetries`). Lifetime is refcounted by backends (plugin lifetime) AND live runs (start → settle). The seam's `outputSchema` type became the raw JSON-Schema SUBSET (`StructuredOutputSchema` in dsh-tools: single-string `type`, `properties`/`required`/`additionalProperties`, `items`, scalar `enum`/`const`; anything unenforced is rejected loud) — the schema travels verbatim to the model as the forced tool's parameters, so the wire format, not the author DSL, is the right vocabulary. +`agent({schema})` needs `SubagentStartRequest.outputSchema` to actually work; it was vocabulary without an implementation (`outputSchema: false` everywhere). Implemented in `dsh-subagent-inprocess` for both in-process backends: a globally registered `structured_output` capture tool whose per-child schema is enforced by a `prepend: true` `system-prompt/assemble` listener doing FINAL-ASSEMBLY enforcement (post-processing `await next()` — cooperative mutation would not survive a downstream listener returning a replacement assembly; the calling instruction rides as a trailing prompt section, since `AgentOptions` carries no per-agent prompt field, and the loop logs the result as the step's `request/header`, keeping the injection reconstructable), a `prepend: true` `agent/turn-continuation` veto after capture (no wasted extra model step) plus a `tools/pre-execute` deny for calls arriving after the capture (terminal within the step, not only at its end), and validation-retry in-turn via `ToolArgsError`. The schema is `structuredClone`d at `start()` (caller mutation cannot drift enforcement). Deliberately NO re-prompt: a child that finishes cleanly without calling the tool settles `error` to the parent. Lifetime is refcounted by backends (plugin lifetime) AND live runs (start → settle). The seam's `outputSchema` type became the raw JSON-Schema SUBSET (`StructuredOutputSchema` in dsh-tools: single-string `type`, `properties`/`required`/`additionalProperties`, `items`, scalar `enum`/`const`; anything unenforced is rejected loud) — the schema travels verbatim to the model as the forced tool's parameters, so the wire format, not the author DSL, is the right vocabulary. ## Deferred (documented non-goals of this cut) diff --git a/packages/workflow/workflow-vm/tests/integration.spec.ts b/packages/workflow/workflow-vm/tests/integration.spec.ts index 48b308a986..3572131a8a 100644 --- a/packages/workflow/workflow-vm/tests/integration.spec.ts +++ b/packages/workflow/workflow-vm/tests/integration.spec.ts @@ -32,7 +32,7 @@ async function setup(script: Script) { await ctx.plugin(Invariants) await ctx.plugin(AgentLoop, { agents: [] }) await ctx.plugin(SubagentService) - await ctx.plugin(spawn, { providerName: 'spawn', structuredNudgeRetries: 1 }) + await ctx.plugin(spawn, { providerName: 'spawn' }) await ctx.plugin(VmWorkflowEngine, {}) ctx.llm.registerAdapter(['mock'], adapter) const parent = ctx.agentLoop.create(AgentId('parent'), { model: 'mock' }) diff --git a/packages/workflow/workflow-vm/tests/workflow.e2e.ts b/packages/workflow/workflow-vm/tests/workflow.e2e.ts index 6ddfdb7251..c3f959d072 100644 --- a/packages/workflow/workflow-vm/tests/workflow.e2e.ts +++ b/packages/workflow/workflow-vm/tests/workflow.e2e.ts @@ -39,7 +39,7 @@ async function harness(): Promise { await built.plugin(AgentLoop, { agents: [] }) await built.plugin(LlmDeepSeek, { models: ['deepseek-v4-flash'] }) await built.plugin(SubagentService) - await built.plugin(Spawn, { providerName: 'spawn', structuredNudgeRetries: 1 }) + await built.plugin(Spawn, { providerName: 'spawn' }) await built.plugin(VmWorkflowEngine, { provider: 'spawn' }) await built.plugin(ToolWorkflow, {}) return built From cebf781d69c774348aac90747e29fb5fa2796bb4 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Tue, 7 Jul 2026 14:57:06 +0800 Subject: [PATCH 041/232] fix review findings: polish ask-user question --- docs/cordis-catalog/services.md | 2 +- docs/core-data-structures/user-interaction.md | 50 ++-- .../feature/2026-06-25-ask-user-question.md | 12 +- docs/tool-catalog/tools.md | 59 ++-- .../tests/snapshots/cancel/session.jsonl | 2 +- .../snapshots/error-finish/session.jsonl | 2 +- .../tests/snapshots/fs-edit/session.jsonl | 2 +- .../snapshots/fs-policy-reject/session.jsonl | 2 +- .../snapshots/fs-read-window/session.jsonl | 2 +- .../tests/snapshots/fs-read/session.jsonl | 2 +- .../snapshots/fs-terminal-card/session.jsonl | 2 +- .../fs-write-overwrite/session.jsonl | 2 +- .../tests/snapshots/fs-write/session.jsonl | 2 +- .../hook-cc-posttool-block/session.jsonl | 2 +- .../hook-cc-posttool-context/session.jsonl | 2 +- .../hook-cc-pretool-ask/session.jsonl | 2 +- .../hook-cc-pretool-deny/session.jsonl | 2 +- .../session.jsonl | 2 +- .../hook-cc-stop-continue/session.jsonl | 2 +- .../hook-codex-posttool-block/session.jsonl | 2 +- .../hook-codex-posttool-context/session.jsonl | 2 +- .../hook-codex-pretool-block/session.jsonl | 2 +- .../session.jsonl | 2 +- .../hook-codex-stop-continue/session.jsonl | 2 +- .../tests/snapshots/multi-turn/session.jsonl | 2 +- .../snapshots/subagent-fork/session.1.jsonl | 4 +- .../snapshots/subagent-fork/session.jsonl | 2 +- .../snapshots/subagent-mixed/session.1.jsonl | 2 +- .../snapshots/subagent-mixed/session.2.jsonl | 4 +- .../snapshots/subagent-mixed/session.jsonl | 2 +- .../snapshots/subagent-multi/session.1.jsonl | 2 +- .../snapshots/subagent-multi/session.2.jsonl | 2 +- .../snapshots/subagent-multi/session.jsonl | 2 +- .../snapshots/subagent-spawn/session.1.jsonl | 2 +- .../snapshots/subagent-spawn/session.jsonl | 2 +- .../tests/snapshots/text-turn/session.jsonl | 2 +- .../tests/snapshots/todo-plan/session.jsonl | 2 +- .../snapshots/tool-call-turn/session.jsonl | 2 +- .../snapshots/workspace-edit/session.jsonl | 2 +- packages/core/user-interaction/README.md | 10 +- packages/core/user-interaction/src/index.ts | 41 ++- .../tests/user-interaction.spec.ts | 27 +- packages/ui/acp/README.md | 2 +- packages/ui/acp/src/index.ts | 118 ++++---- packages/ui/acp/tests/bridge.spec.ts | 104 ++++--- packages/ui/stdio-agent/src/stdio-chat.ts | 96 ++++--- .../ui/stdio-agent/tests/stdio-chat.spec.ts | 271 ++++++++++++------ packages/ui/tool-ask-user/README.md | 10 +- packages/ui/tool-ask-user/src/index.ts | 60 ++-- .../tool-ask-user/tests/tool-ask-user.spec.ts | 146 ++++++---- scripts/type-equiv.manifest.json | 2 + 51 files changed, 665 insertions(+), 419 deletions(-) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 3def20ac2f..fea8840513 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -215,7 +215,7 @@ registerProvider(provider: UserInteractionProvider): () => void async ask(request: AskUserQuestionRequest): Promise ``` -Source: [`packages/core/user-interaction/src/index.ts:70`](../../packages/core/user-interaction/src/index.ts) +Source: [`packages/core/user-interaction/src/index.ts:82`](../../packages/core/user-interaction/src/index.ts) ## `ctx.web` — `WebService` diff --git a/docs/core-data-structures/user-interaction.md b/docs/core-data-structures/user-interaction.md index b0c5f5145c..1f8d135a51 100644 --- a/docs/core-data-structures/user-interaction.md +++ b/docs/core-data-structures/user-interaction.md @@ -6,35 +6,44 @@ Source: [`packages/core/user-interaction/src/index.ts`](../../packages/core/user ## Question options -`AskUserQuestionOption` is the selectable-choice shape. `label` is user-facing, while `value` is the model-facing answer returned when the option is selected; when omitted, providers use the label. +`AskUserQuestionOption` is the selectable-choice shape. `label` is the user-facing option text and also the model-facing selected value; `description` is optional UI help text. ```ts type-equiv interface AskUserQuestionOption { /** User-facing label. */ label: string - /** Value returned to the model when selected. Defaults to `label`. */ - value?: string /** Optional extra context rendered by capable UIs. */ description?: string - /** Marks the recommended/default option. */ - recommended?: boolean } ``` -## Ask request +## Question item -`AskUserQuestionRequest` is the cross-package request. `options` being absent means free-form input; an optionless request remains free-form even when a caller sets `allowCustom: false`, because there is no selectable option to constrain the answer to. +`AskUserQuestionItem` is one question in a request. The model supplies a stable `id`, which is echoed back with the answer so batched questions remain routable. ```ts type-equiv -interface AskUserQuestionRequest { +interface AskUserQuestionItem { + /** Stable model-provided question id, echoed in the answer. */ + id: string /** The question to display. */ question: string /** Optional short heading/group label. */ header?: string /** Optional choices the UI can render as a menu. */ options?: AskUserQuestionOption[] - /** Whether free-form answers are accepted. Defaults to `true`. */ - allowCustom?: boolean + /** Whether more than one option may be selected. Defaults to single-select. */ + multiSelect?: boolean +} +``` + +## Ask request + +`AskUserQuestionRequest` is the cross-package request. `questions` is an array so a UI can present related prompts in one flow while preserving a stable id per answer. + +```ts type-equiv +interface AskUserQuestionRequest { + /** Questions to display. */ + questions: AskUserQuestionItem[] /** Calling agent, when the request came from an agent tool call. */ agent?: Agent /** Abort signal for the owning tool/step. */ @@ -44,14 +53,23 @@ interface AskUserQuestionRequest { ## Answer -Providers return the model-facing `answer` text and optionally echo the chosen option as metadata. Consumers should use `answer`; the option is for UI/session metadata and diagnostics. +Providers return one answer per answered question id. `selected` contains selected option labels, and `custom` carries a free-form "Other" answer when the user typed one. When `custom` is present, `selected` is empty; custom text is an answer override, not a supplement to selected choices. + +```ts type-equiv +interface AskUserQuestionAnswerItem { + /** The answered question id. */ + id: string + /** Selected option labels. Empty when the answer is purely custom text. */ + selected: string[] + /** Optional free-text "Other" answer. */ + custom?: string +} +``` ```ts type-equiv interface AskUserQuestionAnswer { - /** Model-facing answer text. */ - answer: string - /** The selected option, when the answer came from `options`. */ - option?: AskUserQuestionOption + /** Structured answers keyed by question id. */ + answers: AskUserQuestionAnswerItem[] } ``` @@ -67,7 +85,7 @@ interface UserInteractionProvider { ## Errors -`UserInteractionError` extends `HarnessError`, so `ctx.tools.execute()` preserves `{ name, code }` for model-facing tool failures such as `NO_PROVIDER`, `ASK_ABORTED`, or ACP-side cancellation. +`UserInteractionError` extends `HarnessError`, so `ctx.tools.execute()` preserves `{ name, code }` for model-facing tool failures such as `EMPTY_QUESTIONS`, `NO_PROVIDER`, `ASK_ABORTED`, or ACP-side cancellation. ```ts type-equiv class UserInteractionError extends HarnessError { diff --git a/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md b/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md index aa78fbc275..04d183aa9c 100644 --- a/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md +++ b/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md @@ -10,19 +10,19 @@ This is a user-facing capability, but it also crosses package boundaries. A mode ## Decision -Introduce `dsh-user-interaction` as the core interface package for `ctx.userInteraction`, and keep the model-facing consumer `dsh-tool-ask-user` under `packages/ui/tool-ask-user` rather than the core spine. The split is intentional: core owns the abstract seam and stable request/answer/error vocabulary; UI product surfaces own the affordance that asks a human and the concrete provider that collects the answer. The tool registers `ask_user_question`, forwards `{ question, header, options, allowCustom, agent, signal }`, and returns the provider-computed `answer` as the tool result. +Introduce `dsh-user-interaction` as the core interface package for `ctx.userInteraction`, and keep the model-facing consumer `dsh-tool-ask-user` under `packages/ui/tool-ask-user` rather than the core spine. The split is intentional: core owns the abstract seam and stable request/answer/error vocabulary; UI product surfaces own the affordance that asks a human and the concrete provider that collects the answer. The tool registers `ask_user_question`, forwards `{ questions, agent, signal }`, and returns the provider-computed structured answers as the tool result. -The request vocabulary supports a short `header`, the required `question`, optional mutually exclusive `options`, `description` for each option, a `recommended` marker, and `allowCustom`. `label` is user-facing display text; `value` is the model-facing answer for a selected option and defaults to `label`. Providers return `AskUserQuestionAnswer.answer` as the single source of truth; the selected `option` is metadata. The tool schema exposes `description` only, not the synonym `desc`, to keep the model-facing surface small. +The model-facing request vocabulary is deliberately aligned with the product-research schema: `ask_user_question({ questions: [{ id, question, header?, options?: [{ label, description? }], multi_select? }] })`. `id` is supplied per question and echoed in the result so a batch can be routed without relying on question text. `label` is both user-facing display text and the selected value returned to the model; there is no separate `value`, no `recommended`, no `allow_custom`, and no `desc` alias. -Optionless questions are always free-form, even if a caller passes `allowCustom: false`. The opposite would create an unanswerable prompt: with no option to select and free-form input disallowed, every human answer would be rejected forever. Providers therefore treat "no options" as the free-form shape. +Providers return `{ answers: [{ id, selected, custom? }] }`. `selected` is always an array of selected option labels, so single-select and `multi_select` answers share one result shape. `custom` carries a free-text "Other" answer; optionless questions collect `custom` directly. When `custom` is present, it overrides any selected choices and `selected` is empty. `UserInteractionError` extends `HarnessError`, so failures such as `NO_PROVIDER`, `ASK_ABORTED`, ACP cancellation, or missing session routing survive `ctx.tools.execute()` as machine-routable `{ name, code }` tool errors. This matches the structured-error taxonomy and lets the model or a wrapping plugin distinguish "user cancelled" from a generic thrown exception. ## UI mappings -`dsh-stdio-agent`'s in-package readline module renders the question, sorts recommended options first, shows each option's `description` on the next line, accepts the recommended option on an empty answer, and rejects pending questions on abort, provider disposal, or stdin EOF. The stdio provider serializes multiple simultaneous questions with an internal queue so only one prompt owns stdin at a time. +`dsh-stdio-agent`'s in-package readline module renders each question, shows each option's `description` on the next line, supports comma/space-separated numeric choices for `multi_select`, accepts free-form custom answers, and rejects pending questions on abort, provider disposal, or stdin EOF. A batched request is asked in order and resolved as one answer object. The stdio provider serializes simultaneous requests with an internal queue so only one prompt owns stdin at a time. -`dsh-acp` provides the same seam for ACP sessions. It routes an ask request from the calling `Agent` through the bridge's `agent→sessionId` reverse map and calls ACP `unstable_createElicitation` with a session-scoped form. Option choices become a `choice` single-select field with the recommended option as the schema default; free-form answers use `answer` for optionless questions and `custom_answer` when options plus custom input are allowed. ACP `decline`/`cancel`, a missing answer, a missing session, and a client without elicitation support all become structured `UserInteractionError`s. +`dsh-acp` provides the same seam for ACP sessions. It routes an ask request from the calling `Agent` through the bridge's `agent→sessionId` reverse map and calls ACP `unstable_createElicitation` with a session-scoped form for each question. Single-select options become a `choice` string enum; `multi_select` options become a `choice` array enum; optionless questions use a required `custom` text field. If the client returns both `choice` and non-empty `custom`, the custom answer wins. ACP `decline`/`cancel`, a missing answer, a missing session, and a client without elicitation support all become structured `UserInteractionError`s. The ACP mapping deliberately uses elicitation, not `session/request_permission`. `request_permission` is still reserved for the separate permission gate: it is a yes/no-or-policy authorization protocol around tool execution. `ask_user_question` is a general information-gathering tool with optional free-form answers, so ACP form elicitation is the closer protocol fit. The bridge's session routing is shared with the future permission gate, but the user intent is different. @@ -46,4 +46,4 @@ The feature gives the model a powerful pause primitive, so prompt guidance matte ## Testing -Unit coverage pins provider registration/disposal, duplicate-provider rejection, abort-before-provider, structured tool errors through `ctx.tools.execute()`, option labels/values, and the model schema including the removal of `desc`. `dsh-stdio-agent` tests cover recommended-first display, descriptions, queued questions, EOF/abort cleanup, and optionless free-form input even with `allowCustom: false`. ACP bridge tests drive a real in-memory ACP connection with the real `ask_user_question` tool and verify both selected-option and optionless free-form elicitation paths continue the agent loop. +Unit coverage pins provider registration/disposal, duplicate-provider rejection, abort-before-provider, empty-question rejection, structured tool errors through `ctx.tools.execute()`, batched answers, multi-select answers, custom answers, and the model schema including the removal of `value`, `recommended`, `allow_custom`, and `desc`. `dsh-stdio-agent` tests cover option descriptions, queued requests, EOF/abort cleanup, optionless free-form input, invalid option reprompts, duplicate multi-select numbers, and batched question flows. ACP bridge tests drive a real in-memory ACP connection with the real `ask_user_question` tool and verify selected-option, custom-overrides-choice, multi-select, and optionless free-form elicitation paths continue the agent loop. diff --git a/docs/tool-catalog/tools.md b/docs/tool-catalog/tools.md index 3ec06fd1bb..6b65aaf4cd 100644 --- a/docs/tool-catalog/tools.md +++ b/docs/tool-catalog/tools.md @@ -26,55 +26,64 @@ This table connects model-visible tool names to the plugin package and service s ### `ask_user_question` -Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest. +Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer. ```json { "type": "object", "properties": { - "header": { - "type": "string", - "description": "Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"." - }, - "question": { - "type": "string", - "description": "The specific question to ask the user." - }, - "options": { + "questions": { "type": "array", - "description": "Optional mutually exclusive choices to show the user.", + "description": "Questions to ask the user before continuing.", "items": { "type": "object", "properties": { - "label": { + "id": { "type": "string", - "description": "Short user-facing option label." + "description": "Stable id for this question; echoed in the answer." }, - "value": { + "question": { "type": "string", - "description": "Answer text returned to you if this option is selected. Defaults to label." + "description": "The specific question to ask the user." }, - "description": { + "header": { "type": "string", - "description": "One sentence explaining the tradeoff or impact." + "description": "Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"." }, - "recommended": { + "options": { + "type": "array", + "description": "Optional choices to show the user.", + "items": { + "type": "object", + "properties": { + "label": { + "type": "string", + "description": "Short user-facing option label." + }, + "description": { + "type": "string", + "description": "One sentence explaining the tradeoff or impact." + } + }, + "required": [ + "label" + ] + } + }, + "multi_select": { "type": "boolean", - "description": "True for the recommended/default option." + "description": "Whether the user may select more than one option. Defaults to false." } }, "required": [ - "label" + "id", + "question" ] } - }, - "allow_custom": { - "type": "boolean", - "description": "Whether the user may type a free-form answer instead of selecting an option. Defaults to true." } }, "required": [ - "question" + "questions" ] } ``` diff --git a/examples/acp-agent/tests/snapshots/cancel/session.jsonl b/examples/acp-agent/tests/snapshots/cancel/session.jsonl index 58e4ffb8b7..5f80f5a214 100644 --- a/examples/acp-agent/tests/snapshots/cancel/session.jsonl +++ b/examples/acp-agent/tests/snapshots/cancel/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"Start a long task; this turn will be cancelled mid-stream."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}} {"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":0,"text":"partial"}}} {"type":"step/end","seq":6,"time":0,"data":{"turn":1,"step":1}} diff --git a/examples/acp-agent/tests/snapshots/error-finish/session.jsonl b/examples/acp-agent/tests/snapshots/error-finish/session.jsonl index 6d400a53d1..aecc1b0b7b 100644 --- a/examples/acp-agent/tests/snapshots/error-finish/session.jsonl +++ b/examples/acp-agent/tests/snapshots/error-finish/session.jsonl @@ -2,6 +2,6 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"This prompt triggers a recorded provider error."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"step/end","seq":4,"time":0,"data":{"turn":1,"step":1}} {"type":"turn/end","seq":5,"time":0,"data":{"turn":1,"reason":{"kind":"error","step":1,"message":"simulated provider error (HTTP 401)","code":"AUTH"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl b/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl index 37bfe01833..7eea57d216 100644 --- a/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279365277,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279365278,"data":{"content":[{"type":"text","text":"First use the read tool to read config.txt in the current directory. Then use the edit tool (NOT bash) to replace the literal text DEBUG with RELEASE in that file. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279365279,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279365279,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-0g5rlt.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279365279,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-0g5rlt.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279365884,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279365884,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"Let"}}} {"type":"assistant/chunk","seq":6,"time":1783279365982,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl b/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl index 842d0e2777..505cd707d3 100644 --- a/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279382954,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279382954,"data":{"content":[{"type":"text","text":"Do NOT use the read tool. Immediately use the edit tool to replace the literal text blue with green in settings.txt in the current directory. Do not read the file first. After the tool result, reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279382955,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279382956,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-qgXmIP.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279382956,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-qgXmIP.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279383606,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279383606,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279383721,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl b/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl index 9a00ad40ca..92c11d97c0 100644 --- a/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279377803,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279377804,"data":{"content":[{"type":"text","text":"Use the read tool (NOT bash) with offset 5 and limit 4 to read lines 5 through 8 of big.txt in the current directory. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279377806,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279377806,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-mA31X1.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279377806,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-mA31X1.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279378450,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279378450,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279378533,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-read/session.jsonl b/examples/acp-agent/tests/snapshots/fs-read/session.jsonl index 85fd577e87..db294acf6c 100644 --- a/examples/acp-agent/tests/snapshots/fs-read/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-read/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279355670,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279355671,"data":{"content":[{"type":"text","text":"Use the read tool (NOT bash) to read the file greeting.txt in the current directory, then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279355673,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279355673,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-Zo3aiO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279355673,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-Zo3aiO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279356329,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279356330,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279356465,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl b/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl index d9fac13ea8..66f8602f66 100644 --- a/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279337866,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279337867,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo TERMINAL_OK. Then reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279337868,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279337871,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-ImzwJW.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279337871,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-ImzwJW.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279338459,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279338459,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279338579,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl b/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl index fdf94ea612..de95e9a6be 100644 --- a/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"First use the read tool to read data.txt in the current directory. Then use the write tool (NOT bash) to replace its entire contents with exactly the single line: replaced. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-write/session.jsonl b/examples/acp-agent/tests/snapshots/fs-write/session.jsonl index abef504690..2556786c95 100644 --- a/examples/acp-agent/tests/snapshots/fs-write/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-write/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"Use the write tool (NOT bash) to create a file named notes.txt in the current directory containing exactly the single line: hello world. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl index 4ac44af230..09f79121b1 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279438851,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279438852,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279438853,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279438856,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-4FNHMZ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279438856,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-4FNHMZ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279439575,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279439576,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279439723,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-posttool-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-posttool-context/session.jsonl index b8235b52b5..63a2824be4 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-posttool-context/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-posttool-context/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279454673,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279454674,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279454675,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279454676,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-l0uhay.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279454676,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-l0uhay.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279455097,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279455097,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279455192,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl index fffda139e8..09cd1689aa 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279433755,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279433756,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279433757,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279433759,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-GbznxQ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279433759,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-GbznxQ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279434229,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279434229,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279434325,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-pretool-deny/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-pretool-deny/session.jsonl index a2a735ffdc..75803fb92b 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-pretool-deny/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-pretool-deny/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279428483,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279428484,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279428485,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279428488,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-YXKW6X.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279428488,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-YXKW6X.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279429149,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279429149,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279429278,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl index 53f6cbf940..9594344c21 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl @@ -5,7 +5,7 @@ {"type":"user/message","seq":3,"time":1783279424786,"data":{"content":[{"type":"text","text":"What is my favorite color? Reply with just the color and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"context/message","seq":4,"time":1783279424786,"data":{"content":[{"type":"text","text":"The user has previously stated their favorite color is teal."}],"source":{"kind":"plugin","plugin":"hooks-claude"}},"surfaceOp":"append"} {"type":"step/start","seq":5,"time":1783279424787,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":6,"time":1783279424788,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-jHjRG4.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":6,"time":1783279424788,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-jHjRG4.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":7,"time":1783279425470,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":8,"time":1783279425471,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":9,"time":1783279425619,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl index 929409df1e..b98063b1f8 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279459589,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279459590,"data":{"content":[{"type":"text","text":"Reply with the single word FIRST and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279459591,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279459592,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-y7ZIlD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279459592,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-y7ZIlD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279460023,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279460023,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279460120,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-posttool-block/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-posttool-block/session.jsonl index 3e50292d5d..44dcb25682 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-posttool-block/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-posttool-block/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279472951,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279472952,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279472953,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279472957,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-up4xkk.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279472957,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-up4xkk.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279473683,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279473683,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279473835,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-posttool-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-posttool-context/session.jsonl index dc8e1fe918..746769acbb 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-posttool-context/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-posttool-context/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279478902,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279478903,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279478904,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279478905,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-S4Pl3Q.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279478905,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-S4Pl3Q.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. 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Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279479573,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279479573,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279479735,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl index bc84fb16ac..bc71251497 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279467545,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279467546,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279467547,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279467548,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-XJzzAW.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279467548,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-XJzzAW.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279468248,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279468248,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279468448,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl index d0dc0b550c..bf9cb5f2aa 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl @@ -5,7 +5,7 @@ {"type":"user/message","seq":3,"time":1783279463864,"data":{"content":[{"type":"text","text":"What is my favorite color? Reply with just the color and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"context/message","seq":4,"time":1783279463864,"data":{"content":[{"type":"text","text":"The user has previously stated their favorite color is teal."}],"source":{"kind":"plugin","plugin":"hooks-codex"}},"surfaceOp":"append"} {"type":"step/start","seq":5,"time":1783279463865,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":6,"time":1783279463866,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-dXMGno.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":6,"time":1783279463866,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-dXMGno.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":7,"time":1783279464538,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":8,"time":1783279464539,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":9,"time":1783279464680,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl index bd7f21b30b..f30cbb0413 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279484315,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279484316,"data":{"content":[{"type":"text","text":"Reply with the single word FIRST and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279484317,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279484319,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-CW2Kzh.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279484319,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-CW2Kzh.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279484964,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279484964,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279485118,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/multi-turn/session.jsonl b/examples/acp-agent/tests/snapshots/multi-turn/session.jsonl index d1488562b9..82fd83c799 100644 --- a/examples/acp-agent/tests/snapshots/multi-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/multi-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279390951,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279390951,"data":{"content":[{"type":"text","text":"Reply with exactly the word: ONE. No tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279390953,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279390953,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-YRz0cJ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279390953,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-YRz0cJ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279391532,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279391532,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279391637,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl index b9df18dad9..41f1470806 100644 --- a/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279408071,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279408071,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is MARMALADE. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279408072,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279408073,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279408073,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279408758,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279408758,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279408906,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} @@ -35,7 +35,7 @@ {"type":"turn/start","seq":33,"time":1783279410879,"data":{"turn":2,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":34,"time":1783279410880,"data":{"content":[{"type":"text","text":"What is the project codeword mentioned earlier in this conversation? Reply with exactly that one word and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":35,"time":1783279410880,"data":{"turn":2,"step":1}} -{"type":"request/header","seq":36,"time":1783279410880,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"resume"}} +{"type":"request/header","seq":36,"time":1783279410880,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"resume"}} {"type":"assistant/chunk","seq":37,"time":1783279411585,"data":{"turn":2,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":38,"time":1783279411586,"data":{"turn":2,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":39,"time":1783279411711,"data":{"turn":2,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl index e21dba852b..5da19c9516 100644 --- a/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279408071,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279408071,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is MARMALADE. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279408072,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279408073,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279408073,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279408758,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279408758,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279408906,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl index 7f426c7e0f..4480b90e56 100644 --- a/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279418198,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279418198,"data":{"content":[{"type":"text","text":"Reply with exactly the word ALPHA and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279418198,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279418198,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279418198,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279418756,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279418756,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279418937,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl b/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl index eec185bfd7..99762f7b80 100644 --- a/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279415444,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279415445,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is SAFFRON. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279415446,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279415446,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279415446,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279416146,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279416146,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279416310,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} @@ -29,7 +29,7 @@ {"type":"turn/start","seq":27,"time":1783279420404,"data":{"turn":2,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":28,"time":1783279420404,"data":{"content":[{"type":"text","text":"What is the project codeword mentioned earlier in this conversation? Reply with exactly that one word and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":29,"time":1783279420405,"data":{"turn":2,"step":1}} -{"type":"request/header","seq":30,"time":1783279420405,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"resume"}} +{"type":"request/header","seq":30,"time":1783279420405,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"resume"}} {"type":"assistant/chunk","seq":31,"time":1783279421097,"data":{"turn":2,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":32,"time":1783279421098,"data":{"turn":2,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":33,"time":1783279421204,"data":{"turn":2,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl index 9d6fe663cd..5c4e1350e7 100644 --- a/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279415444,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279415445,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is SAFFRON. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279415446,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279415446,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279415446,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279416146,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279416146,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279416310,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl index d650e3f381..c476b1ef9f 100644 --- a/examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279402204,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279402204,"data":{"content":[{"type":"text","text":"Reply with exactly the word ALPHA and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279402205,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279402205,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279402205,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279402608,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279402608,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279402723,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl b/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl index 6e37fa2ad6..79c29ab258 100644 --- a/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279403730,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279403730,"data":{"content":[{"type":"text","text":"Reply with exactly the word BETA and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279403730,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279403730,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279403730,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279404370,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279404370,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279404532,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl index 0960b62547..5477534fca 100644 --- a/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279400642,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279400642,"data":{"content":[{"type":"text","text":"Use the subagent tool TWICE, once at a time, to delegate two subtasks to child agents. First subtask: 'Reply with exactly the word ALPHA and nothing else.' Second subtask (after the first returns): 'Reply with exactly the word BETA and nothing else.' After both subagents return, reply with the single word PARENT_DONE and stop. Do not use the bash tool."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279400643,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279400646,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279400646,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279401312,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279401312,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279401437,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl index c38e6d2988..183214fa62 100644 --- a/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279396597,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279396597,"data":{"content":[{"type":"text","text":"Reply with exactly the word CHILD_OK and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279396598,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279396598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-JrLIIO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279396598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-JrLIIO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279397154,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279397154,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279397252,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl index f0bc7d96f2..31d93e40a6 100644 --- a/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279395301,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279395302,"data":{"content":[{"type":"text","text":"Use the subagent tool exactly once to delegate this subtask to a child agent: 'Reply with exactly the word CHILD_OK and nothing else.' After the subagent returns, reply with the single word PARENT_DONE and stop. Do not use the bash tool."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279395303,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279395304,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-JrLIIO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279395304,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-JrLIIO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279395862,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279395862,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279395973,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl index 539747bd0c..6d2783b6cb 100644 --- a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279329596,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279329596,"data":{"content":[{"type":"text","text":"Reply with exactly the word: PONG. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279329598,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279329598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-q0sbE9.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279329598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-q0sbE9.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. 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Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279330062,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279330062,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279330154,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl b/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl index 5e4e8db328..4238bf797a 100644 --- a/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl +++ b/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279342895,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279342896,"data":{"content":[{"type":"text","text":"Use the todo_write tool to record a plan with exactly three todos: \"read the code\" (in_progress), \"write the fix\" (pending), \"run the tests\" (pending). Send all three in one todo_write call. Then reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279342897,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279342898,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-t9J1QD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279342898,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-t9J1QD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279343592,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279343592,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279343701,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl b/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl index ebb703ee55..fa7f23f3bc 100644 --- a/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279332863,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279332864,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo SNAPSHOT_OK. Then reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279332865,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279332868,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-lH9qMe.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279332868,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-lH9qMe.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279333505,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279333505,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279333653,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl b/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl index e9b19b4fda..fd20cb4c10 100644 --- a/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl +++ b/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"A file named greeting.txt in the current directory contains one word. Use the bash tool to append a second line containing the word WORLD to it (so it has two lines), then read the file back with `cat greeting.txt` to confirm, and reply with the single word DONE. Use a single bash call per action."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Use options when possible; mark the recommended option when one is safest.","parameters":{"type":"object","properties":{"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"question":{"type":"string","description":"The specific question to ask the user."},"options":{"type":"array","description":"Optional mutually exclusive choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"value":{"type":"string","description":"Answer text returned to you if this option is selected. Defaults to label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."},"recommended":{"type":"boolean","description":"True for the recommended/default option."}},"required":["label"]}},"allow_custom":{"type":"boolean","description":"Whether the user may type a free-form answer instead of selecting an option. Defaults to true."}},"required":["question"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"Let"}}} {"type":"assistant/chunk","seq":6,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}} diff --git a/packages/core/user-interaction/README.md b/packages/core/user-interaction/README.md index 66f812997f..6377c2b7ef 100644 --- a/packages/core/user-interaction/README.md +++ b/packages/core/user-interaction/README.md @@ -11,11 +11,13 @@ Abstract user-interaction seam. It owns `ctx.userInteraction`, the service a mod ### Key Types -- `AskUserQuestionRequest` — `{ question, header?, options?, allowCustom?, agent?, signal? }`. -- `AskUserQuestionOption` — `{ label, value?, description?, recommended? }`. -- `AskUserQuestionAnswer` — `{ answer, option? }`. +- `AskUserQuestionRequest` — `{ questions: [{ id, question, header?, options?, multiSelect? }], agent?, signal? }`. +- `AskUserQuestionOption` — `{ label, description? }`. +- `AskUserQuestionAnswer` — `{ answers: [{ id, selected, custom? }] }`. - `UserInteractionProvider` — UI implementation with `ask(request)`. -- `UserInteractionError` — `HarnessError` subclass with codes such as `NO_PROVIDER`, `DUPLICATE_PROVIDER`, and `ASK_ABORTED`. +- `UserInteractionError` — `HarnessError` subclass with codes such as `EMPTY_QUESTIONS`, `NO_PROVIDER`, `DUPLICATE_PROVIDER`, and `ASK_ABORTED`. + +When an answer includes `custom`, `selected` is empty; custom text is an override rather than a supplement to selected choices. ## Role diff --git a/packages/core/user-interaction/src/index.ts b/packages/core/user-interaction/src/index.ts index 2e560d9574..f9c1616ade 100644 --- a/packages/core/user-interaction/src/index.ts +++ b/packages/core/user-interaction/src/index.ts @@ -21,36 +21,48 @@ declare module 'cordis' { export interface AskUserQuestionOption { /** User-facing label. */ label: string - /** Value returned to the model when selected. Defaults to `label`. */ - value?: string /** Optional extra context rendered by capable UIs. */ description?: string - /** Marks the recommended/default option. */ - recommended?: boolean } -/** Request for a human answer. */ -export interface AskUserQuestionRequest { +/** One question in an ask_user_question request. */ +export interface AskUserQuestionItem { + /** Stable model-provided question id, echoed in the answer. */ + id: string /** The question to display. */ question: string /** Optional short heading/group label. */ header?: string /** Optional choices the UI can render as a menu. */ options?: AskUserQuestionOption[] - /** Whether free-form answers are accepted. Defaults to `true`. */ - allowCustom?: boolean + /** Whether more than one option may be selected. Defaults to single-select. */ + multiSelect?: boolean +} + +/** Request for a human answer. */ +export interface AskUserQuestionRequest { + /** Questions to display. */ + questions: AskUserQuestionItem[] /** Calling agent, when the request came from an agent tool call. */ agent?: Agent /** Abort signal for the owning tool/step. */ signal?: AbortSignal } +/** Answer to one question. */ +export interface AskUserQuestionAnswerItem { + /** The answered question id. */ + id: string + /** Selected option labels. Empty when the answer is purely custom text. */ + selected: string[] + /** Optional free-text "Other" answer. */ + custom?: string +} + /** The human's answer. */ export interface AskUserQuestionAnswer { - /** Model-facing answer text. */ - answer: string - /** The selected option, when the answer came from `options`. */ - option?: AskUserQuestionOption + /** Structured answers keyed by question id. */ + answers: AskUserQuestionAnswerItem[] } /** UI-side provider for user questions. */ @@ -96,13 +108,16 @@ export class UserInteractionService extends Service { /** * Ask the active UI provider and wait for the user's answer. * - * @param request Question, options, owner agent, and abort signal. + * @param request Questions, owner agent, and abort signal. * @returns The answer chosen or typed by the human. */ async ask(request: AskUserQuestionRequest): Promise { if (request.signal?.aborted) { throw new UserInteractionError('ask_user_question was aborted before the user answered', 'ASK_ABORTED') } + if (request.questions.length === 0) { + throw new UserInteractionError('ask_user_question requires at least one question', 'EMPTY_QUESTIONS') + } if (this.provider === undefined) { throw new UserInteractionError('no user-interaction provider is registered', 'NO_PROVIDER') } diff --git a/packages/core/user-interaction/tests/user-interaction.spec.ts b/packages/core/user-interaction/tests/user-interaction.spec.ts index 8b7eefc48c..adfbc9d4bb 100644 --- a/packages/core/user-interaction/tests/user-interaction.spec.ts +++ b/packages/core/user-interaction/tests/user-interaction.spec.ts @@ -12,7 +12,7 @@ function provider(answer = 'approved'): UserInteractionProvider & { seen: AskUse seen, async ask(request) { seen.push(request) - return { answer } + return { answers: [{ id: request.questions[0]?.id ?? 'missing', selected: [answer] }] } }, } } @@ -24,17 +24,17 @@ describe('UserInteractionService', () => { const p = provider('yes') ctx.userInteraction.registerProvider(p) - const result = await ctx.userInteraction.ask({ question: 'Proceed?' }) + const result = await ctx.userInteraction.ask({ questions: [{ id: 'confirm', question: 'Proceed?' }] }) - expect(result).toEqual({ answer: 'yes' }) - expect(p.seen).toEqual([{ question: 'Proceed?' }]) + expect(result).toEqual({ answers: [{ id: 'confirm', selected: ['yes'] }] }) + expect(p.seen).toEqual([{ questions: [{ id: 'confirm', question: 'Proceed?' }] }]) }) it('rejects ask requests when no provider is registered', async () => { const ctx = new Context() await ctx.plugin(UserInteractionService) - await expect(ctx.userInteraction.ask({ question: 'Proceed?' })) + await expect(ctx.userInteraction.ask({ questions: [{ id: 'confirm', question: 'Proceed?' }] })) .rejects.toMatchObject({ name: 'UserInteractionError', code: 'NO_PROVIDER' }) }) @@ -47,7 +47,7 @@ describe('UserInteractionService', () => { dispose() dispose() - await expect(ctx.userInteraction.ask({ question: 'Proceed?' })) + await expect(ctx.userInteraction.ask({ questions: [{ id: 'confirm', question: 'Proceed?' }] })) .rejects.toMatchObject({ code: 'NO_PROVIDER' }) }) @@ -63,13 +63,24 @@ describe('UserInteractionService', () => { it('fails before reaching the provider when the signal is already aborted', async () => { const ctx = new Context() await ctx.plugin(UserInteractionService) - const p = { ask: vi.fn(async () => ({ answer: 'too late' })) } + const p = { ask: vi.fn(async () => ({ answers: [{ id: 'confirm', selected: ['too late'] }] })) } ctx.userInteraction.registerProvider(p) const controller = new AbortController() controller.abort() - await expect(ctx.userInteraction.ask({ question: 'Proceed?', signal: controller.signal })) + await expect(ctx.userInteraction.ask({ questions: [{ id: 'confirm', question: 'Proceed?' }], signal: controller.signal })) .rejects.toMatchObject({ code: 'ASK_ABORTED' }) expect(p.ask).not.toHaveBeenCalled() }) + + it('rejects empty question batches before reaching the provider', async () => { + const ctx = new Context() + await ctx.plugin(UserInteractionService) + const p = { ask: vi.fn(async () => ({ answers: [] })) } + ctx.userInteraction.registerProvider(p) + + await expect(ctx.userInteraction.ask({ questions: [] })) + .rejects.toMatchObject({ name: 'UserInteractionError', code: 'EMPTY_QUESTIONS' }) + expect(p.ask).not.toHaveBeenCalled() + }) }) diff --git a/packages/ui/acp/README.md b/packages/ui/acp/README.md index 85a4cd8616..49abfbff6a 100644 --- a/packages/ui/acp/README.md +++ b/packages/ui/acp/README.md @@ -30,7 +30,7 @@ The `initialize` handshake reports a fixed server identity (`agentInfo: { name: | `session/prompt` | `agent.send()` | supports ACP `text` and `resource_link` blocks; rejects image/audio/embedded resource and empty prompts; one in-flight prompt PER session (independent); settles on the OWNING turn's end (a turn that ends in `error` rejects the RPC) | | `session/cancel` | `agent.cancel()` | the queue-aware cancel: aborts a running step, clears queued + steering work, and drops a turn about to start, then settles the prompt `cancelled` — for ONLY that session (a cancel never touches another session's stream or prompt) | | `session/update` | `session/event` | `agent_message_chunk` (text-delta), `agent_thought_chunk` (reasoning-delta), `user_message_chunk` (load replay), `tool_call`/`tool_call_update` (the render intent — a `card`-tagged `ToolCallView`/`ToolResultView` — owned by the TOOL via `presentCall`/`presentResult`, which the bridge switches on to build the wire shape — see Tool-call presentation) | -| `elicitation/create` | `ctx.userInteraction.ask()` | maps `ask_user_question` requests to ACP form elicitations; recommended options become defaults, option descriptions are shown in enum titles, optionless requests remain free-form even when `allowCustom` is false | +| `elicitation/create` | `ctx.userInteraction.ask()` | maps `ask_user_question` questions to ACP form elicitations; option descriptions are shown in enum titles, `multi_select` uses ACP array enums, optionless requests use a required `custom` field, and a non-empty custom answer overrides any selected choice | ## Multi-session diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index 0cd25d4614..2530cca446 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -77,6 +77,8 @@ import type {} from '@deepseek-ai/dsh-session-persistence' import { UserInteractionError, type AskUserQuestionAnswer, + type AskUserQuestionAnswerItem, + type AskUserQuestionItem, type AskUserQuestionOption, type AskUserQuestionRequest, } from '@deepseek-ai/dsh-user-interaction' @@ -120,27 +122,12 @@ function sameWorkspaceCwd(left: string, right: string): boolean { return resolvePath(left) === resolvePath(right) } -function optionAnswer(option: AskUserQuestionOption): string { - return option.value ?? option.label -} - -function orderedOptions(options: readonly AskUserQuestionOption[] | undefined): AskUserQuestionOption[] { - return [...(options ?? [])].sort((a, b) => Number(Boolean(b.recommended)) - Number(Boolean(a.recommended))) -} - function optionDescription(option: AskUserQuestionOption): string { return option.description === undefined ? option.label : `${option.label}: ${option.description}` } -function selectedOption( - options: readonly AskUserQuestionOption[], - answer: string, -): AskUserQuestionOption | undefined { - return options.find(option => optionAnswer(option) === answer) -} - function requireStringContent( content: Record | null | undefined, key: string, @@ -177,62 +164,74 @@ function withAbort(promise: Promise, signal: AbortSignal | undefined): Pro function elicitationForQuestion( sessionId: SessionId, - request: AskUserQuestionRequest, + question: AskUserQuestionItem, options: AskUserQuestionOption[], ): CreateElicitationRequest { - const allowCustom = options.length === 0 || (request.allowCustom ?? true) - const title = request.header ?? 'Question' + const title = question.header ?? 'Question' if (options.length === 0) { return { sessionId, mode: 'form', - message: request.question, + message: question.question, requestedSchema: { type: 'object', title, properties: { - answer: { type: 'string', title: request.question }, + custom: { type: 'string', title: question.question }, }, - required: ['answer'], + required: ['custom'], }, } } const choiceOptions: EnumOption[] = options.map(option => ({ - const: optionAnswer(option), + const: option.label, title: optionDescription(option), })) - const recommended = options.find(option => option.recommended) + const choice = question.multiSelect === true + ? { + type: 'array' as const, + title: question.question, + description: 'Choose one or more options, or fill a custom answer below.', + items: { + anyOf: choiceOptions, + }, + } + : { + type: 'string' as const, + title: question.question, + description: 'Choose one option, or fill a custom answer below.', + oneOf: choiceOptions, + } return { sessionId, mode: 'form', - message: request.question, + message: question.question, requestedSchema: { type: 'object', title, properties: { - choice: { + choice, + custom: { type: 'string', - title: request.question, - description: allowCustom ? 'Choose one option, or fill a custom answer below.' : 'Choose one option.', - oneOf: choiceOptions, - ...recommended !== undefined ? { default: optionAnswer(recommended) } : {}, + title: 'Custom answer', + description: 'Optional free-form answer. Leave empty to use the selected option.', }, - ...allowCustom - ? { - custom_answer: { - type: 'string' as const, - title: 'Custom answer', - description: 'Optional free-form answer. Leave empty to use the selected option.', - }, - } - : {}, }, - required: allowCustom ? [] : ['choice'], + required: [], }, } } +function stringArrayContent( + content: Record | null | undefined, + key: string, +): string[] { + const value = content?.[key] + if (Array.isArray(value)) return value.filter((item): item is string => typeof item === 'string' && item.length > 0) + return typeof value === 'string' && value.length > 0 ? [value] : [] +} + /** Plugin config: the agent template ACP sessions are created from. */ export interface AcpConfig { /** Model name for created agents (must have a registered adapter). */ @@ -373,25 +372,30 @@ export function apply(ctx: Context, config: AcpConfig): void { if (sessionId === undefined) { throw new UserInteractionError('ACP user question has no matching session', 'NO_SESSION') } - const options = orderedOptions(request.options) - const response = await withAbort(conn.unstable_createElicitation( - elicitationForQuestion(sessionId, request, options), - ), request.signal).catch((error: unknown) => { - if (error instanceof UserInteractionError) throw error - throw new UserInteractionError('ACP elicitation request failed', 'ASK_FAILED', { cause: error }) - }) - if (response.action !== 'accept') { - throw new UserInteractionError('ask_user_question was cancelled by the user', 'ASK_CANCELLED') + const answers: AskUserQuestionAnswerItem[] = [] + for (const question of request.questions) { + const options = question.options ?? [] + const response = await withAbort(conn.unstable_createElicitation( + elicitationForQuestion(sessionId, question, options), + ), request.signal).catch((error: unknown) => { + if (error instanceof UserInteractionError) throw error + throw new UserInteractionError('ACP elicitation request failed', 'ASK_FAILED', { cause: error }) + }) + if (response.action !== 'accept') { + throw new UserInteractionError('ask_user_question was cancelled by the user', 'ASK_CANCELLED') + } + const custom = requireStringContent(response.content, 'custom') + const selected = stringArrayContent(response.content, 'choice') + if (custom === undefined && selected.length === 0) { + throw new UserInteractionError('ask_user_question returned no answer', 'NO_ANSWER') + } + answers.push({ + id: question.id, + selected: custom === undefined ? selected : [], + ...custom !== undefined ? { custom } : {}, + }) } - const customAnswer = requireStringContent(response.content, 'custom_answer') - if (customAnswer !== undefined) return { answer: customAnswer } - - const answer = requireStringContent(response.content, options.length === 0 ? 'answer' : 'choice') - if (answer === undefined) { - throw new UserInteractionError('ask_user_question returned no answer', 'NO_ANSWER') - } - const option = selectedOption(options, answer) - return option === undefined ? { answer } : { answer, option } + return { answers } }, }) diff --git a/packages/ui/acp/tests/bridge.spec.ts b/packages/ui/acp/tests/bridge.spec.ts index 969c10a2da..be05a09644 100644 --- a/packages/ui/acp/tests/bridge.spec.ts +++ b/packages/ui/acp/tests/bridge.spec.ts @@ -59,18 +59,20 @@ describe('acp bridge', () => { withAskUser: true, script: [ toolCallResponse('ask-1', 'ask_user_question', { - header: 'Project config', - question: 'Which language should I use?', - options: [ - { label: 'TypeScript', value: 'ts', description: 'Good for UI apps' }, - { label: 'Python', value: 'py', description: 'Good for scripts', recommended: true }, - ], - allow_custom: false, + questions: [{ + id: 'language', + header: 'Project config', + question: 'Which language should I use?', + options: [ + { label: 'TypeScript', description: 'Good for UI apps' }, + { label: 'Python', description: 'Good for scripts' }, + ], + }], }), textResponse('Python it is.'), ], }) - harness.onElicitation = () => ({ action: 'accept', content: { choice: 'py' } }) + harness.onElicitation = () => ({ action: 'accept', content: { choice: 'Python' } }) await harness.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) const { sessionId } = await harness.client.newSession({ cwd: process.cwd(), mcpServers: [] }) @@ -86,18 +88,20 @@ describe('acp bridge', () => { title: 'Project config', properties: { choice: { - default: 'py', oneOf: [ - { const: 'py', title: 'Python: Good for scripts' }, - { const: 'ts', title: 'TypeScript: Good for UI apps' }, + { const: 'TypeScript', title: 'TypeScript: Good for UI apps' }, + { const: 'Python', title: 'Python: Good for scripts' }, ], }, + custom: { type: 'string' }, }, - required: ['choice'], + required: [], }, }) const toolResult = harness.ctx.agents.get(AgentId(sessionId))!.session.events.find(event => event.type === 'tool/result') - expect(JSON.stringify(toolResult)).toContain('py') + const toolResultBlock = toolResult?.type === 'tool/result' ? toolResult.data.content[0] : undefined + const toolResultText = toolResultBlock?.type === 'text' ? toolResultBlock.text : undefined + expect(toolResultText).toBe('{"answers":[{"id":"language","selected":["Python"]}]}') }) it('routes optionless ask_user_question through an ACP free-form answer field', async () => { @@ -106,13 +110,12 @@ describe('acp bridge', () => { withAskUser: true, script: [ toolCallResponse('ask-1', 'ask_user_question', { - question: 'What should I name it?', - allow_custom: false, + questions: [{ id: 'name', question: 'What should I name it?' }], }), textResponse('Name recorded.'), ], }) - harness.onElicitation = () => ({ action: 'accept', content: { answer: 'apollo' } }) + harness.onElicitation = () => ({ action: 'accept', content: { custom: 'apollo' } }) await harness.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) const { sessionId } = await harness.client.newSession({ cwd: process.cwd(), mcpServers: [] }) @@ -120,8 +123,8 @@ describe('acp bridge', () => { expect(harness.elicitationRequests[0]).toMatchObject({ requestedSchema: { - properties: { answer: { type: 'string', title: 'What should I name it?' } }, - required: ['answer'], + properties: { custom: { type: 'string', title: 'What should I name it?' } }, + required: ['custom'], }, }) const toolResult = harness.ctx.agents.get(AgentId(sessionId))!.session.events.find(event => event.type === 'tool/result') @@ -130,18 +133,21 @@ describe('acp bridge', () => { it('supports ACP custom answers alongside choices', async () => { harness = await makeBridgeHarness({ storageDir, withAskUser: true }) - harness.onElicitation = () => ({ action: 'accept', content: { custom_answer: 'Use Zig' } }) + harness.onElicitation = () => ({ action: 'accept', content: { custom: 'Use Zig' } }) await harness.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) const { sessionId } = await harness.client.newSession({ cwd: process.cwd(), mcpServers: [] }) const agent = harness.ctx.agents.get(AgentId(sessionId))! const result = await harness.ctx.userInteraction.ask({ agent, - question: 'Which language?', - options: [{ label: 'TypeScript' }], + questions: [{ + id: 'language', + question: 'Which language?', + options: [{ label: 'TypeScript' }], + }], }) - expect(result).toEqual({ answer: 'Use Zig' }) + expect(result).toEqual({ answers: [{ id: 'language', selected: [], custom: 'Use Zig' }] }) expect(harness.elicitationRequests[0]).toMatchObject({ requestedSchema: { properties: { @@ -149,26 +155,46 @@ describe('acp bridge', () => { description: 'Choose one option, or fill a custom answer below.', oneOf: [{ const: 'TypeScript', title: 'TypeScript' }], }, - custom_answer: { type: 'string' }, + custom: { type: 'string' }, }, required: [], }, }) }) - it('returns raw ACP answers when they do not match a provided option', async () => { + it('treats ACP custom answers as overriding selected choices', async () => { harness = await makeBridgeHarness({ storageDir, withAskUser: true }) - harness.onElicitation = () => ({ action: 'accept', content: { choice: 'something else' } }) + harness.onElicitation = () => ({ action: 'accept', content: { choice: 'TypeScript', custom: 'Use Zig' } }) await harness.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) const { sessionId } = await harness.client.newSession({ cwd: process.cwd(), mcpServers: [] }) const agent = harness.ctx.agents.get(AgentId(sessionId))! await expect(harness.ctx.userInteraction.ask({ agent, - question: 'Pick', - options: [{ label: 'A', value: 'a' }], - allowCustom: false, - })).resolves.toEqual({ answer: 'something else' }) + questions: [{ + id: 'language', + question: 'Which language?', + options: [{ label: 'TypeScript' }], + }], + })).resolves.toEqual({ answers: [{ id: 'language', selected: [], custom: 'Use Zig' }] }) + }) + + it('supports ACP multi-select answers', async () => { + harness = await makeBridgeHarness({ storageDir, withAskUser: true }) + harness.onElicitation = () => ({ action: 'accept', content: { choice: ['Tests', 'Docs'] } }) + await harness.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + const { sessionId } = await harness.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + const agent = harness.ctx.agents.get(AgentId(sessionId))! + + await expect(harness.ctx.userInteraction.ask({ + agent, + questions: [{ + id: 'targets', + question: 'Pick', + options: [{ label: 'Tests' }, { label: 'Docs' }], + multiSelect: true, + }], + })).resolves.toEqual({ answers: [{ id: 'targets', selected: ['Tests', 'Docs'] }] }) }) it('reports ACP ask-user routing and answer failures as structured errors', async () => { @@ -177,21 +203,21 @@ describe('acp bridge', () => { const { sessionId } = await harness.client.newSession({ cwd: process.cwd(), mcpServers: [] }) const agent = harness.ctx.agents.get(AgentId(sessionId))! - await expect(harness.ctx.userInteraction.ask({ question: 'No agent?' })) + await expect(harness.ctx.userInteraction.ask({ questions: [{ id: 'x', question: 'No agent?' }] })) .rejects.toMatchObject({ name: 'UserInteractionError', code: 'NO_AGENT' }) - await expect(harness.ctx.userInteraction.ask({ agent: { id: 'other' } as typeof agent, question: 'No session?' })) + await expect(harness.ctx.userInteraction.ask({ agent: { id: 'other' } as typeof agent, questions: [{ id: 'x', question: 'No session?' }] })) .rejects.toMatchObject({ code: 'NO_SESSION' }) harness.onElicitation = () => ({ action: 'cancel' }) - await expect(harness.ctx.userInteraction.ask({ agent, question: 'Cancel?' })) + await expect(harness.ctx.userInteraction.ask({ agent, questions: [{ id: 'x', question: 'Cancel?' }] })) .rejects.toMatchObject({ code: 'ASK_CANCELLED' }) harness.onElicitation = () => ({ action: 'accept', content: {} }) - await expect(harness.ctx.userInteraction.ask({ agent, question: 'Empty?' })) + await expect(harness.ctx.userInteraction.ask({ agent, questions: [{ id: 'x', question: 'Empty?' }] })) .rejects.toMatchObject({ code: 'NO_ANSWER' }) harness.onElicitation = () => { throw new Error('client boom') } - await expect(harness.ctx.userInteraction.ask({ agent, question: 'Client fails?', signal: new AbortController().signal })) + await expect(harness.ctx.userInteraction.ask({ agent, questions: [{ id: 'x', question: 'Client fails?' }], signal: new AbortController().signal })) .rejects.toMatchObject({ code: 'ASK_FAILED' }) }) @@ -203,7 +229,7 @@ describe('acp bridge', () => { const alreadyAborted = new AbortController() alreadyAborted.abort() - await expect(harness.ctx.userInteraction.ask({ agent, question: 'Already?', signal: alreadyAborted.signal })) + await expect(harness.ctx.userInteraction.ask({ agent, questions: [{ id: 'x', question: 'Already?' }], signal: alreadyAborted.signal })) .rejects.toMatchObject({ code: 'ASK_ABORTED' }) let abortedReads = 0 @@ -216,18 +242,18 @@ describe('acp bridge', () => { reason: undefined, throwIfAborted() {}, } as AbortSignal - await expect(harness.ctx.userInteraction.ask({ agent, question: 'Raced?', signal: racingAbort })) + await expect(harness.ctx.userInteraction.ask({ agent, questions: [{ id: 'x', question: 'Raced?' }], signal: racingAbort })) .rejects.toMatchObject({ code: 'ASK_ABORTED' }) - let release: ((value: { action: 'accept'; content: { answer: string } }) => void) | undefined + let release: ((value: { action: 'accept'; content: { custom: string } }) => void) | undefined harness.onElicitation = () => new Promise((resolve) => { release = resolve }) const pendingAbort = new AbortController() - const ask = harness.ctx.userInteraction.ask({ agent, question: 'Pending?', signal: pendingAbort.signal }) + const ask = harness.ctx.userInteraction.ask({ agent, questions: [{ id: 'x', question: 'Pending?' }], signal: pendingAbort.signal }) await new Promise(resolve => setImmediate(resolve)) pendingAbort.abort() await expect(ask).rejects.toMatchObject({ code: 'ASK_ABORTED' }) - release?.({ action: 'accept', content: { answer: 'too late' } }) + release?.({ action: 'accept', content: { custom: 'too late' } }) }) it('allows multiple concurrent sessions, each with a distinct id', async () => { diff --git a/packages/ui/stdio-agent/src/stdio-chat.ts b/packages/ui/stdio-agent/src/stdio-chat.ts index 715ff541b5..4745aefb47 100644 --- a/packages/ui/stdio-agent/src/stdio-chat.ts +++ b/packages/ui/stdio-agent/src/stdio-chat.ts @@ -23,6 +23,8 @@ import { AgentId } from '@deepseek-ai/dsh-agent' import { UserInteractionError, type AskUserQuestionAnswer, + type AskUserQuestionAnswerItem, + type AskUserQuestionItem, type AskUserQuestionOption, type AskUserQuestionRequest, } from '@deepseek-ai/dsh-user-interaction' @@ -63,27 +65,20 @@ function isTTYPair(input: Readable, output: Writable): boolean { return Boolean((input as { isTTY?: boolean }).isTTY && (output as { isTTY?: boolean }).isTTY) } -function optionAnswer(option: AskUserQuestionOption): string { - return option.value ?? option.label -} - -function displayOptions(options: AskUserQuestionOption[] = []): AskUserQuestionOption[] { - return options - .map((option, index) => ({ option, index })) - .sort((left, right) => { - if (left.option.recommended === right.option.recommended) return left.index - right.index - return left.option.recommended ? -1 : 1 - }) - .map(({ option }) => option) -} - interface PendingQuestion { request: AskUserQuestionRequest + questionIndex: number + answers: AskUserQuestionAnswerItem[] resolve(answer: AskUserQuestionAnswer): void reject(error: unknown): void onAbort: () => void } +type OptionSelection = + | { kind: 'selected'; options: AskUserQuestionOption[] } + | { kind: 'custom' } + | { kind: 'invalid' } + /** * The plugin body, parameterized over its I/O runtime. `apply` is the thin * production wrapper that binds the real `process` streams; tests call this @@ -205,12 +200,16 @@ export function createStdioChat(ctx: Context, config: Config, runtime: StdioRunt if (status === 'idle') maybeExit() }) + const activeQuestionItem = (pending: PendingQuestion): AskUserQuestionItem => + pending.request.questions[pending.questionIndex] as AskUserQuestionItem + const renderQuestion = (pending: PendingQuestion): void => { - const { request } = pending + const question = activeQuestionItem(pending) + const options = question.options ?? [] output.write('\n') - output.write(request.header ? `[${request.header}] ${request.question}\n` : `[question] ${request.question}\n`) - displayOptions(request.options).forEach((option, index) => { - output.write(` ${index + 1}. ${option.label}${option.recommended ? ' (recommended)' : ''}\n`) + output.write(question.header ? `[${question.header}] ${question.question}\n` : `${question.question}\n`) + options.forEach((option, index) => { + output.write(` ${index + 1}. ${option.label}\n`) if (option.description) output.write(` ${option.description}\n`) }) output.write('> ') @@ -249,41 +248,64 @@ export function createStdioChat(ctx: Context, config: Config, runtime: StdioRunt } } - const finishQuestion = (pending: PendingQuestion, answer: AskUserQuestionAnswer): void => { - removeAbortListener(pending) + const finishQuestion = (pending: PendingQuestion): void => { activeQuestion = undefined - pending.resolve(answer) + removeAbortListener(pending) + pending.resolve({ answers: pending.answers }) output.write('\n') startNextQuestion() } + const answerCurrentQuestion = (pending: PendingQuestion, answer: AskUserQuestionAnswerItem): void => { + pending.answers.push(answer) + pending.questionIndex += 1 + if (pending.questionIndex >= pending.request.questions.length) { + finishQuestion(pending) + return + } + renderQuestion(pending) + } + + const selectedOptions = (text: string, options: AskUserQuestionOption[], multiSelect: boolean): OptionSelection => { + if (text === '') return { kind: 'invalid' } + if (!multiSelect) { + if (!/^\d+$/.test(text)) return { kind: 'custom' } + const selected = options[Number(text) - 1] + return selected === undefined ? { kind: 'invalid' } : { kind: 'selected', options: [selected] } + } + const indices = text.split(/[,\s]+/).filter(Boolean) + if (indices.length === 0) return { kind: 'invalid' } + if (indices.some(part => !/^\d+$/.test(part))) return { kind: 'custom' } + const uniqueIndices = [...new Set(indices)] + const selected = uniqueIndices.map(part => options[Number(part) - 1]) + return selected.some(option => option === undefined) + ? { kind: 'invalid' } + : { kind: 'selected', options: selected as AskUserQuestionOption[] } + } + const answerQuestion = (line: string): void => { const pending = activeQuestion as PendingQuestion + const question = activeQuestionItem(pending) const text = line.trim() - const options = displayOptions(pending.request.options) - const selectedIndex = /^\d+$/.test(text) ? Number(text) - 1 : -1 - const selected = selectedIndex >= 0 ? options[selectedIndex] : undefined - if (selected !== undefined) { - finishQuestion(pending, { answer: optionAnswer(selected), option: selected }) + const options = question.options ?? [] + const selection = options.length > 0 + ? selectedOptions(text, options, question.multiSelect ?? false) + : { kind: text === '' ? 'invalid' : 'custom' } as OptionSelection + if (selection.kind === 'selected') { + answerCurrentQuestion(pending, { id: question.id, selected: selection.options.map(option => option.label) }) return } - const recommended = options.find(option => option.recommended) - if (text === '' && recommended !== undefined) { - finishQuestion(pending, { answer: optionAnswer(recommended), option: recommended }) - return - } - - const allowCustom = options.length === 0 || (pending.request.allowCustom ?? true) - if (allowCustom && text !== '') { - finishQuestion(pending, { answer: text }) + if (selection.kind === 'custom' && text !== '') { + answerCurrentQuestion(pending, { id: question.id, selected: [], custom: text }) return } output.write(options.length > 0 ? 'Please enter one of the option numbers' - + (allowCustom ? ' or a custom answer' : '') + + (question.multiSelect ? ' (comma or space separated)' : '') + + ' or a custom answer' + '.\n> ' : 'Please enter an answer.\n> ') } @@ -298,6 +320,8 @@ export function createStdioChat(ctx: Context, config: Config, runtime: StdioRunt return new Promise((resolve, reject) => { const pending: PendingQuestion = { request, + questionIndex: 0, + answers: [], resolve, reject, onAbort: () => { diff --git a/packages/ui/stdio-agent/tests/stdio-chat.spec.ts b/packages/ui/stdio-agent/tests/stdio-chat.spec.ts index 66d94bc1eb..1f4b44e1cf 100644 --- a/packages/ui/stdio-agent/tests/stdio-chat.spec.ts +++ b/packages/ui/stdio-agent/tests/stdio-chat.spec.ts @@ -1,4 +1,4 @@ -import { Readable } from 'node:stream' +import { Readable, Writable } from 'node:stream' import { describe, expect, it, vi } from 'vitest' import { Context } from 'cordis' import type { Agent, AgentStatus } from '@deepseek-ai/dsh-agent' @@ -107,6 +107,30 @@ describe('createStdioChat rendering', () => { // And it drives the default agent id 'main'. }) + it('detects readline terminal mode from both stream TTY flags', async () => { + for (const [inputTTY, outputTTY] of [[true, false], [true, true]] as const) { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + await ctx.plugin(UserInteractionService) + let text = '' + const output = new Writable({ + write(chunk, _encoding, callback) { + text += String(chunk) + callback() + }, + }) as Writable & { isTTY?: boolean } + const { runtime } = makeRuntime({ output }) + ;(runtime.input as Readable & { isTTY?: boolean }).isTTY = inputTTY + output.isTTY = outputTTY + const fiber = await ctx.plugin(Object.assign((inner: Context) => { + createStdioChat(inner, CONFIG, runtime) + }, { inject: ['agents', 'userInteraction'] })) + + expect(text).toContain('hi there') + await fiber.dispose() + } + }) + it('renders text-delta chunks verbatim', async () => { const { ctx, out } = await setup() ctx.emit('session/event', makeSession('main'), chunkEvent({ type: 'text-delta', index: 0, text: 'hello' })) @@ -273,150 +297,229 @@ describe('createStdioChat input', () => { ctx.agents.register(agent) const answer = ctx.userInteraction.ask({ - header: 'Confirm', - question: 'Proceed with the edit?', - options: [{ label: 'Yes', value: 'Proceed', description: 'Apply the edit now.', recommended: true }], + questions: [{ + id: 'confirm', + header: 'Confirm', + question: 'Proceed with the edit?', + options: [{ label: 'Yes', description: 'Apply the edit now.' }], + }], }) await new Promise(r => setImmediate(r)) input.feed('Use a smaller change') - await expect(answer).resolves.toEqual({ answer: 'Use a smaller change' }) + await expect(answer).resolves.toEqual({ answers: [{ id: 'confirm', selected: [], custom: 'Use a smaller change' }] }) expect(agent.sent).toEqual([]) expect(out.text()).toContain('[Confirm] Proceed with the edit?') - expect(out.text()).toContain('1. Yes (recommended)') + expect(out.text()).toContain('1. Yes') expect(out.text()).toContain('Apply the edit now.') }) it('answers a pending user question by numeric option selection', async () => { const { ctx, input } = await setup() const answer = ctx.userInteraction.ask({ - question: 'Which mode?', - options: [ - { label: 'Safe', value: 'Use safe mode', recommended: true }, - { label: 'Fast', value: 'Use fast mode' }, - ], - allowCustom: false, + questions: [{ + id: 'mode', + question: 'Which mode?', + options: [ + { label: 'Safe' }, + { label: 'Fast' }, + ], + }], }) await new Promise(r => setImmediate(r)) input.feed('2') await expect(answer).resolves.toEqual({ - answer: 'Use fast mode', - option: { label: 'Fast', value: 'Use fast mode' }, + answers: [{ id: 'mode', selected: ['Fast'] }], }) }) - it('renders recommended options first and selects by displayed number', async () => { + it('renders options in input order and selects by displayed number', async () => { const { ctx, input, out } = await setup() const answer = ctx.userInteraction.ask({ - question: 'Which topic?', - options: [ - { label: 'Hobbies', value: 'hobbies' }, - { label: 'Work', value: 'work', description: 'Questions about current projects.' }, - { label: 'Casual', value: 'casual', recommended: true, description: 'Easy conversation.' }, - ], - allowCustom: false, + questions: [{ + id: 'topic', + question: 'Which topic?', + options: [ + { label: 'Hobbies' }, + { label: 'Work', description: 'Questions about current projects.' }, + { label: 'Casual', description: 'Easy conversation.' }, + ], + }], }) await new Promise(r => setImmediate(r)) expect(out.text()).toContain([ - '[question] Which topic?', - ' 1. Casual (recommended)', - ' Easy conversation.', - ' 2. Hobbies', - ' 3. Work', + 'Which topic?', + ' 1. Hobbies', + ' 2. Work', ' Questions about current projects.', + ' 3. Casual', + ' Easy conversation.', ].join('\n')) - input.feed('1') + input.feed('3') await expect(answer).resolves.toEqual({ - answer: 'casual', - option: { label: 'Casual', value: 'casual', recommended: true, description: 'Easy conversation.' }, + answers: [{ id: 'topic', selected: ['Casual'] }], }) }) - it('uses the recommended option when the user submits an empty answer', async () => { + it('answers a multi-select question with multiple numeric selections', async () => { const { ctx, input } = await setup() const answer = ctx.userInteraction.ask({ - question: 'Continue?', - options: [ - { label: 'No' }, - { label: 'Yes', value: 'Continue', recommended: true }, - ], - allowCustom: false, + questions: [{ + id: 'targets', + question: 'What should I update?', + options: [{ label: 'Tests' }, { label: 'Docs' }, { label: 'Code' }], + multiSelect: true, + }], }) await new Promise(r => setImmediate(r)) - input.feed('') + input.feed('1 1, 3') await expect(answer).resolves.toEqual({ - answer: 'Continue', - option: { label: 'Yes', value: 'Continue', recommended: true }, + answers: [{ id: 'targets', selected: ['Tests', 'Code'] }], }) }) - it('re-prompts when options are required and the input is invalid', async () => { - const { ctx, input, out } = await setup() + it('accepts non-numeric multi-select input as a custom answer', async () => { + const { ctx, input } = await setup() const answer = ctx.userInteraction.ask({ - question: 'Which mode?', - options: [{ label: 'Safe' }], - allowCustom: false, + questions: [{ + id: 'targets', + question: 'What should I update?', + options: [{ label: 'Tests' }, { label: 'Docs' }], + multiSelect: true, + }], }) await new Promise(r => setImmediate(r)) - input.feed('custom') + input.feed('the release notes') + + await expect(answer).resolves.toEqual({ + answers: [{ id: 'targets', selected: [], custom: 'the release notes' }], + }) + }) + + it('asks every question in a batch and returns answers by id', async () => { + const { ctx, input, out } = await setup() + const answer = ctx.userInteraction.ask({ + questions: [ + { id: 'language', question: 'Which language?', options: [{ label: 'Python' }, { label: 'TypeScript' }] }, + { id: 'note', question: 'Any note?' }, + ], + }) await new Promise(r => setImmediate(r)) - expect(out.text()).toContain('Please enter one of the option numbers.') + input.feed('2') + await new Promise(r => setImmediate(r)) + expect(out.text()).toContain('\nAny note?\n') + input.feed('ship today') + + await expect(answer).resolves.toEqual({ + answers: [ + { id: 'language', selected: ['TypeScript'] }, + { id: 'note', selected: [], custom: 'ship today' }, + ], + }) + }) + + it('re-prompts when option input is invalid', async () => { + const { ctx, input, out } = await setup() + const answer = ctx.userInteraction.ask({ + questions: [{ + id: 'mode', + question: 'Which mode?', + options: [{ label: 'Safe' }], + multiSelect: true, + }], + }) + await new Promise(r => setImmediate(r)) + input.feed('2') + await new Promise(r => setImmediate(r)) + expect(out.text()).toContain('Please enter one of the option numbers (comma or space separated) or a custom answer.') input.feed('1') await expect(answer).resolves.toEqual({ - answer: 'Safe', - option: { label: 'Safe' }, + answers: [{ id: 'mode', selected: ['Safe'] }], }) }) - it('re-prompts with custom-answer guidance when options also allow free-form input', async () => { + it('re-prompts when single-select option input is out of range', async () => { const { ctx, input, out } = await setup() const answer = ctx.userInteraction.ask({ - question: 'Which mode?', - options: [{ label: 'Safe' }], + questions: [{ + id: 'mode', + question: 'Which mode?', + options: [{ label: 'Safe' }], + }], + }) + await new Promise(r => setImmediate(r)) + input.feed('2') + await new Promise(r => setImmediate(r)) + expect(out.text()).toContain('Please enter one of the option numbers or a custom answer.') + input.feed('1') + + await expect(answer).resolves.toEqual({ + answers: [{ id: 'mode', selected: ['Safe'] }], + }) + }) + + it('re-prompts when multi-select input contains no option numbers', async () => { + const { ctx, input, out } = await setup() + const answer = ctx.userInteraction.ask({ + questions: [{ + id: 'mode', + question: 'Which mode?', + options: [{ label: 'Safe' }], + multiSelect: true, + }], + }) + await new Promise(r => setImmediate(r)) + input.feed(',') + await new Promise(r => setImmediate(r)) + expect(out.text()).toContain('Please enter one of the option numbers (comma or space separated) or a custom answer.') + input.feed('1') + + await expect(answer).resolves.toEqual({ + answers: [{ id: 'mode', selected: ['Safe'] }], + }) + }) + + it('re-prompts when an option question receives an empty answer', async () => { + const { ctx, input, out } = await setup() + const answer = ctx.userInteraction.ask({ + questions: [{ + id: 'mode', + question: 'Which mode?', + options: [{ label: 'Safe' }], + }], }) await new Promise(r => setImmediate(r)) input.feed('') await new Promise(r => setImmediate(r)) expect(out.text()).toContain('Please enter one of the option numbers or a custom answer.') - input.feed('Use custom mode') + input.feed('1') - await expect(answer).resolves.toEqual({ answer: 'Use custom mode' }) + await expect(answer).resolves.toEqual({ + answers: [{ id: 'mode', selected: ['Safe'] }], + }) }) - it('re-prompts when a free-form question receives an empty answer', async () => { + it('re-prompts when a question receives an empty answer', async () => { const { ctx, input, out } = await setup() - const answer = ctx.userInteraction.ask({ question: 'What should I use?' }) + const answer = ctx.userInteraction.ask({ questions: [{ id: 'path', question: 'What should I use?' }] }) await new Promise(r => setImmediate(r)) input.feed('') await new Promise(r => setImmediate(r)) expect(out.text()).toContain('Please enter an answer.') input.feed('Use defaults') - await expect(answer).resolves.toEqual({ answer: 'Use defaults' }) - }) - - it('accepts free-form input for an optionless question even when allowCustom is false', async () => { - const { ctx, input } = await setup() - const answer = ctx.userInteraction.ask({ - question: 'Choose?', - allowCustom: false, - }) - await new Promise(r => setImmediate(r)) - - input.feed('Use the default path') - - await expect(answer).resolves.toEqual({ answer: 'Use the default path' }) + await expect(answer).resolves.toEqual({ answers: [{ id: 'path', selected: [], custom: 'Use defaults' }] }) }) it('rejects an active question when its signal aborts', async () => { const { ctx } = await setup() const controller = new AbortController() - const answer = ctx.userInteraction.ask({ question: 'Continue?', signal: controller.signal }) + const answer = ctx.userInteraction.ask({ questions: [{ id: 'continue', question: 'Continue?' }], signal: controller.signal }) const rejected = expect(answer).rejects.toMatchObject({ code: 'ASK_ABORTED' }) await new Promise(r => setImmediate(r)) @@ -428,40 +531,40 @@ describe('createStdioChat input', () => { it('continues to the next queued question when the active question aborts', async () => { const { ctx, input, out } = await setup() const controller = new AbortController() - const first = ctx.userInteraction.ask({ question: 'First?', signal: controller.signal }) + const first = ctx.userInteraction.ask({ questions: [{ id: 'first', question: 'First?' }], signal: controller.signal }) const firstRejected = expect(first).rejects.toMatchObject({ code: 'ASK_ABORTED' }) - const second = ctx.userInteraction.ask({ question: 'Second?' }) + const second = ctx.userInteraction.ask({ questions: [{ id: 'second', question: 'Second?' }] }) await new Promise(r => setImmediate(r)) controller.abort() await firstRejected await new Promise(r => setImmediate(r)) - expect(out.text()).toContain('[question] Second?') + expect(out.text()).toContain('\nSecond?\n') input.feed('second answer') - await expect(second).resolves.toEqual({ answer: 'second answer' }) + await expect(second).resolves.toEqual({ answers: [{ id: 'second', selected: [], custom: 'second answer' }] }) }) it('skips a queued question whose signal aborted before it became active', async () => { const { ctx, input, out } = await setup() const controller = new AbortController() - const first = ctx.userInteraction.ask({ question: 'First?' }) - const second = ctx.userInteraction.ask({ question: 'Second?', signal: controller.signal }) + const first = ctx.userInteraction.ask({ questions: [{ id: 'first', question: 'First?' }] }) + const second = ctx.userInteraction.ask({ questions: [{ id: 'second', question: 'Second?' }], signal: controller.signal }) const secondRejected = expect(second).rejects.toMatchObject({ code: 'ASK_ABORTED' }) await new Promise(r => setImmediate(r)) controller.abort() input.feed('first answer') - await expect(first).resolves.toEqual({ answer: 'first answer' }) + await expect(first).resolves.toEqual({ answers: [{ id: 'first', selected: [], custom: 'first answer' }] }) await secondRejected - expect(out.text()).not.toContain('[question] Second?') + expect(out.text()).not.toContain('\nSecond?\n') }) it('rejects active and queued questions when the UI is disposed', async () => { const { ctx, fiber } = await setup() - const active = ctx.userInteraction.ask({ question: 'Active?' }) - const queued = ctx.userInteraction.ask({ question: 'Queued?' }) + const active = ctx.userInteraction.ask({ questions: [{ id: 'active', question: 'Active?' }] }) + const queued = ctx.userInteraction.ask({ questions: [{ id: 'queued', question: 'Queued?' }] }) const activeRejected = expect(active).rejects.toMatchObject({ code: 'ASK_ABORTED' }) const queuedRejected = expect(queued).rejects.toMatchObject({ code: 'ASK_ABORTED' }) await new Promise(r => setImmediate(r)) @@ -474,8 +577,8 @@ describe('createStdioChat input', () => { it('rejects active and queued questions when stdin closes before the user answers', async () => { const { ctx, input, exit } = await setup() - const active = ctx.userInteraction.ask({ question: 'Active?' }) - const queued = ctx.userInteraction.ask({ question: 'Queued?' }) + const active = ctx.userInteraction.ask({ questions: [{ id: 'active', question: 'Active?' }] }) + const queued = ctx.userInteraction.ask({ questions: [{ id: 'queued', question: 'Queued?' }] }) const activeRejected = expect(active).rejects.toMatchObject({ code: 'ASK_ABORTED' }) const queuedRejected = expect(queued).rejects.toMatchObject({ code: 'ASK_ABORTED' }) await new Promise(r => setImmediate(r)) @@ -494,7 +597,7 @@ describe('createStdioChat input', () => { await new Promise(r => setImmediate(r)) const before = out.text() - const answer = ctx.userInteraction.ask({ question: 'Too late?' }) + const answer = ctx.userInteraction.ask({ questions: [{ id: 'late', question: 'Too late?' }] }) await expect(answer).rejects.toMatchObject({ code: 'ASK_ABORTED' }) expect(out.text()).toBe(before) diff --git a/packages/ui/tool-ask-user/README.md b/packages/ui/tool-ask-user/README.md index dc0b198d04..11f35c5129 100644 --- a/packages/ui/tool-ask-user/README.md +++ b/packages/ui/tool-ask-user/README.md @@ -6,12 +6,14 @@ Model-facing `ask_user_question` tool over `ctx.userInteraction`. It lets the mo `ask_user_question` accepts: -- `question` — required question text. +- `questions` — required non-empty array of question objects. +- `id` — required stable id on each question, echoed in the answer. +- `question` — required question text for each question. - `header` — optional short heading. -- `options` — optional choices with `label`, `value`, `description`, and `recommended`. -- `allow_custom` — whether free-form answers are allowed; defaults to the provider's normal `true` behavior. +- `options` — optional choices with `label` and `description`. +- `multi_select` — whether that question may return more than one selected option. -The tool calls `ctx.userInteraction.ask()` and returns the selected option value or custom answer as a text tool result. +The tool calls `ctx.userInteraction.ask()` and returns JSON text shaped as `{ "answers": [{ "id": "...", "selected": ["..."], "custom": "..." }] }`. `selected` contains option labels; `custom` is present only for a free-form answer and overrides selected choices. ## Role diff --git a/packages/ui/tool-ask-user/src/index.ts b/packages/ui/tool-ask-user/src/index.ts index e574db91f3..6048f66808 100644 --- a/packages/ui/tool-ask-user/src/index.ts +++ b/packages/ui/tool-ask-user/src/index.ts @@ -8,56 +8,64 @@ import type { Context } from 'cordis' import { defineTool } from '@deepseek-ai/dsh-tools' -import type {} from '@deepseek-ai/dsh-user-interaction' +import '@deepseek-ai/dsh-user-interaction' export const name = 'tool-ask-user' export const inject = ['tools', 'userInteraction'] const description = 'Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. ' - + 'Use options when possible; mark the recommended option when one is safest.' + + 'Send one or more questions, each with a stable id that will be echoed in the answer.' export function apply(ctx: Context): void { ctx.tools.register(defineTool({ name: 'ask_user_question', description, parameters: { - header: { - type: 'string', - description: 'Optional short heading for the question, such as "Confirm" or "Choose Mode".', - }, - question: { - type: 'string', - required: true, - description: 'The specific question to ask the user.', - }, - options: { + questions: { type: 'array', - description: 'Optional mutually exclusive choices to show the user.', + required: true, + description: 'Questions to ask the user before continuing.', items: { type: 'object', properties: { - label: { type: 'string', required: true, description: 'Short user-facing option label.' }, - value: { type: 'string', description: 'Answer text returned to you if this option is selected. Defaults to label.' }, - description: { type: 'string', description: 'One sentence explaining the tradeoff or impact.' }, - recommended: { type: 'boolean', description: 'True for the recommended/default option.' }, + id: { type: 'string', required: true, description: 'Stable id for this question; echoed in the answer.' }, + question: { type: 'string', required: true, description: 'The specific question to ask the user.' }, + header: { + type: 'string', + description: 'Optional short heading for the question, such as "Confirm" or "Choose Mode".', + }, + options: { + type: 'array', + description: 'Optional choices to show the user.', + items: { + type: 'object', + properties: { + label: { type: 'string', required: true, description: 'Short user-facing option label.' }, + description: { type: 'string', description: 'One sentence explaining the tradeoff or impact.' }, + }, + }, + }, + multi_select: { + type: 'boolean', + description: 'Whether the user may select more than one option. Defaults to false.', + }, }, }, }, - allow_custom: { - type: 'boolean', - description: 'Whether the user may type a free-form answer instead of selecting an option. Defaults to true.', - }, }, async execute(args, exec) { const result = await ctx.userInteraction.ask({ - question: args.question, - ...args.header !== undefined ? { header: args.header } : {}, - ...args.options !== undefined ? { options: args.options } : {}, - ...args.allow_custom !== undefined ? { allowCustom: args.allow_custom } : {}, + questions: args.questions.map(question => ({ + id: question.id, + question: question.question, + ...question.header !== undefined ? { header: question.header } : {}, + ...question.options !== undefined ? { options: question.options } : {}, + ...question.multi_select !== undefined ? { multiSelect: question.multi_select } : {}, + })), ...exec.agent !== undefined ? { agent: exec.agent } : {}, ...exec.signal !== undefined ? { signal: exec.signal } : {}, }) - return [{ type: 'text', text: result.answer }] + return [{ type: 'text', text: JSON.stringify(result) }] }, })) } diff --git a/packages/ui/tool-ask-user/tests/tool-ask-user.spec.ts b/packages/ui/tool-ask-user/tests/tool-ask-user.spec.ts index b6fd9d92e4..b0fdd2cc41 100644 --- a/packages/ui/tool-ask-user/tests/tool-ask-user.spec.ts +++ b/packages/ui/tool-ask-user/tests/tool-ask-user.spec.ts @@ -9,9 +9,15 @@ import * as toolAskUser from '@deepseek-ai/dsh-tool-ask-user' interface OptionSchemaShape { properties: { - options: { + questions: { items: { - properties: Record + properties: { + options: { + items: { + properties: Record + } + } + } & Record } } } @@ -36,29 +42,35 @@ describe('ask_user_question tool', () => { parameters: { type: 'object', properties: { - question: { type: 'string' }, - options: { type: 'array' }, - allow_custom: { type: 'boolean' }, + questions: { type: 'array' }, }, - required: ['question'], + required: ['questions'], }, }) const parameters = schema?.parameters as unknown as OptionSchemaShape - expect(parameters.properties.options.items.properties).toMatchObject({ - description: { type: 'string' }, - recommended: { type: 'boolean' }, + expect(parameters.properties.questions.items.properties).toMatchObject({ + id: { type: 'string' }, + question: { type: 'string' }, + header: { type: 'string' }, + options: { type: 'array' }, + multi_select: { type: 'boolean' }, }) - expect(parameters.properties.options.items.properties).not.toHaveProperty('desc') + expect(parameters.properties.questions.items.properties.options.items.properties).toMatchObject({ + label: { type: 'string' }, + description: { type: 'string' }, + }) + expect(parameters.properties.questions.items.properties.options.items.properties).not.toHaveProperty('value') + expect(parameters.properties.questions.items.properties.options.items.properties).not.toHaveProperty('recommended') + expect(parameters.properties.questions.items.properties.options.items.properties).not.toHaveProperty('preview') }) - it('asks the registered user-interaction provider and returns the answer text', async () => { + it('asks the registered user-interaction provider and projects structured answers to text', async () => { const ctx = await setup() const seen: AskUserQuestionRequest[] = [] ctx.userInteraction.registerProvider({ async ask(request) { seen.push(request) - const option = request.options?.[0] - return option === undefined ? { answer: 'Use pnpm' } : { answer: 'Use pnpm', option } + return { answers: [{ id: 'pkg', selected: ['pnpm'] }] } }, }) @@ -66,20 +78,59 @@ describe('ask_user_question tool', () => { callId: CallId('ask-1'), name: 'ask_user_question', arguments: { - question: 'Which package manager should I use?', - options: [{ label: 'pnpm', value: 'Use pnpm', recommended: true }], - allow_custom: false, + questions: [{ + id: 'pkg', + question: 'Which package manager should I use?', + options: [{ label: 'pnpm', description: 'Use pnpm workspaces.' }], + }], }, }) expect(result).toMatchObject({ isError: false, - content: [{ type: 'text', text: 'Use pnpm' }], + content: [{ type: 'text', text: '{"answers":[{"id":"pkg","selected":["pnpm"]}]}' }], }) expect(seen).toMatchObject([{ - question: 'Which package manager should I use?', - options: [{ label: 'pnpm', value: 'Use pnpm', recommended: true }], - allowCustom: false, + questions: [{ + id: 'pkg', + question: 'Which package manager should I use?', + options: [{ label: 'pnpm', description: 'Use pnpm workspaces.' }], + }], + }]) + }) + + it('projects custom answers and multi-select choices', async () => { + const ctx = await setup() + ctx.userInteraction.registerProvider({ + async ask() { + return { + answers: [ + { id: 'targets', selected: ['tests', 'docs'] }, + { id: 'notes', selected: [], custom: 'ship today' }, + ], + } + }, + }) + + const result = await ctx.tools.execute({ + callId: CallId('ask-multi'), + name: 'ask_user_question', + arguments: { + questions: [ + { + id: 'targets', + question: 'What should I update?', + options: [{ label: 'tests' }, { label: 'docs' }], + multi_select: true, + }, + { id: 'notes', question: 'Any note?' }, + ], + }, + }) + + expect(result.content).toEqual([{ + type: 'text', + text: '{"answers":[{"id":"targets","selected":["tests","docs"]},{"id":"notes","selected":[],"custom":"ship today"}]}', }]) }) @@ -89,7 +140,7 @@ describe('ask_user_question tool', () => { ctx.userInteraction.registerProvider({ async ask(request) { seen.push(request) - return { answer: 'ok' } + return { answers: [{ id: 'continue', selected: ['ok'] }] } }, }) const controller = new AbortController() @@ -97,7 +148,7 @@ describe('ask_user_question tool', () => { await ctx.tools.execute({ callId: CallId('ask-2'), name: 'ask_user_question', - arguments: { question: 'Continue?' }, + arguments: { questions: [{ id: 'continue', question: 'Continue?' }] }, signal: controller.signal, }) @@ -110,7 +161,7 @@ describe('ask_user_question tool', () => { ctx.userInteraction.registerProvider({ async ask(request) { seen.push(request) - return { answer: 'ok' } + return { answers: [{ id: 'continue', selected: ['ok'] }] } }, }) const agent = { id: 'main' } as unknown as Agent @@ -118,12 +169,12 @@ describe('ask_user_question tool', () => { const result = await ctx.tools.execute({ callId: CallId('ask-3'), name: 'ask_user_question', - arguments: { header: 'Confirm', question: 'Continue?' }, + arguments: { questions: [{ id: 'continue', header: 'Confirm', question: 'Continue?' }] }, agent, }) - expect(result.content).toEqual([{ type: 'text', text: 'ok' }]) - expect(seen[0]).toMatchObject({ header: 'Confirm', agent }) + expect(result.content).toEqual([{ type: 'text', text: '{"answers":[{"id":"continue","selected":["ok"]}]}' }]) + expect(seen[0]).toMatchObject({ questions: [{ id: 'continue', header: 'Confirm', question: 'Continue?' }], agent }) }) it('returns structured user-interaction errors through tool execution', async () => { @@ -132,7 +183,7 @@ describe('ask_user_question tool', () => { const result = await ctx.tools.execute({ callId: CallId('ask-no-provider'), name: 'ask_user_question', - arguments: { question: 'Continue?' }, + arguments: { questions: [{ id: 'continue', question: 'Continue?' }] }, }) expect(result).toMatchObject({ @@ -141,48 +192,19 @@ describe('ask_user_question tool', () => { }) }) - it('uses an option label when the selected option has no explicit value', async () => { + it('returns a structured error for empty question batches', async () => { const ctx = await setup() - ctx.userInteraction.registerProvider({ - async ask(request) { - const option = request.options?.[0] - if (option === undefined) throw new Error('missing option') - return { answer: option.label, option } - }, - }) const result = await ctx.tools.execute({ - callId: CallId('ask-4'), + callId: CallId('ask-empty'), name: 'ask_user_question', - arguments: { - question: 'Pick one', - options: [{ label: 'Fallback label' }], - }, + arguments: { questions: [] }, }) - expect(result.content).toEqual([{ type: 'text', text: 'Fallback label' }]) - }) - - it('returns the provider-computed answer even when option metadata is present', async () => { - const ctx = await setup() - ctx.userInteraction.registerProvider({ - async ask(request) { - const option = request.options?.[0] - if (option === undefined) throw new Error('missing option') - return { answer: `selected ${option.value}`, option } - }, + expect(result).toMatchObject({ + isError: true, + error: { name: 'UserInteractionError', code: 'EMPTY_QUESTIONS' }, }) - - const result = await ctx.tools.execute({ - callId: CallId('ask-5'), - name: 'ask_user_question', - arguments: { - question: 'Pick one', - options: [{ label: 'A', value: 'a' }], - }, - }) - - expect(result.content).toEqual([{ type: 'text', text: 'selected a' }]) }) it('unregisters the tool when its plugin fiber is disposed', async () => { diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index b7062c9e0e..14f2714d95 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -45,7 +45,9 @@ { "doc": "docs/core-data-structures/tools.md", "symbol": "PostToolDecision", "source": "packages/core/tools/src/index.ts" }, { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionOption", "source": "packages/core/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionItem", "source": "packages/core/user-interaction/src/index.ts" }, { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionRequest", "source": "packages/core/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionAnswerItem", "source": "packages/core/user-interaction/src/index.ts" }, { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionAnswer", "source": "packages/core/user-interaction/src/index.ts" }, { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "UserInteractionProvider", "source": "packages/core/user-interaction/src/index.ts" }, { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "UserInteractionError", "source": "packages/core/user-interaction/src/index.ts" }, From afab88b139717830590fb65b24274aff124203ea Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Tue, 7 Jul 2026 16:22:57 +0800 Subject: [PATCH 042/232] docs(rfc): record the schema-validation alternatives considered MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The #192 review discussion, preserved where design rationale lives: a schema-object library (zod/schemastery) cannot sit at a wire-data boundary; ajv replaces only the value walker while the subset gate — the module's point — stays hand-written; provider JSON mode guarantees valid JSON, not schema-conforming JSON, and would trade away mid-run tools and in-turn validation retry for it. Strict tool schemas are named as the accepted upgrade path when the provider ships them. --- docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index 7bf09f742c..daf041a1d8 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -56,6 +56,9 @@ A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, awai - **Workflow-layer JSON parsing for `agent({schema})`**: duplicating a seam concern at one consumer while the seam's capability flag stayed dishonestly `false`. - **Meta as tool parameters instead of `export const meta`**: zero parsing, but scripts stop being self-contained artifacts and CC-authored scripts stop being drop-in. - **`SchemaSpec` as the outputSchema type**: the author-facing DSL cannot express what arrives as data and cannot be validated against without conversion loss. +- **A schema-object library (zod, or the repo's schemastery) for the structured-output subset**: the schema is wire data — plain JSON that crosses the vm realm boundary in `agent({schema})` and lands verbatim in the forced tool's parameters — exactly where live schema objects cannot sit; consuming raw JSON Schema at runtime would need a third-party converter on top (zod core only emits JSON Schema, not the reverse), and it would put a second schema language beside schemastery's config role. +- **ajv for value validation**: it validates FULL JSON Schema, so the subset gate — the module's actual point, since every accepted keyword must be one the harness enforces — would remain hand-written regardless; it compiles validators through `new Function`; and it would be dsh-tools' first runtime dependency, all to replace the ~70-line value walker while the path-qualified, every-violation error reporting stays custom either way. +- **Provider JSON mode (`response_format: {type: json_object}`) instead of the forced capture tool**: the official API guarantees valid JSON, not schema-conforming JSON (no `json_schema` type; the docs' own guidance is to validate client-side, with the schema riding in the prompt), so both walkers survive untouched and only the capture-tool mechanics could go — at the cost of tools during a structured child's run (whether `response_format` composes with tool calling is undocumented), the in-turn validation retry (`ToolArgsError` keeps recovery inside the turn; a JSON-mode empty body — a documented failure mode — ends the turn, and the only recovery is the re-prompt loop this design rejects), and a new per-adapter `LlmCallConfig` surface. The accepted upgrade path is strict TOOL schemas (provider-side constrained decoding on tool parameters) when available: the same forced tool and subset gate, with the gate narrowed to the provider's strict subset. ## Consequences From 17bd71e5301b1a396292df3f94d0b6c1aa854068 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Tue, 7 Jul 2026 19:42:30 +0800 Subject: [PATCH 043/232] feat(agent): add the agent/request-messages request-only message seam MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A new waterfall near request construction lets plugins contribute request-ONLY messages framing the derived history: RequestMessages { before, after } with a frozen empty seed, fired inside the open step after the agent/request config waterfall, so the step/start boundary snapshot and its same-sync-frame invariant are untouched. The request becomes messagePrefix + boundary snapshot + messageSuffix. Contributions never enter session history — deriveMessages() is unchanged — so the request header is their durable record: EpochHeader gains messagePrefix/messageSuffix (canonical absence for empty arrays), request/header-delta replaces either array whole with an empty array encoding the transition back to absence, and the dev-mode reconstruction cross-check now expects the folded header's framing around the boundary derivation. This is the seam for per-request advisory context that must be model-visible now without becoming durable history (a skills catalog, an environment reminder), keeping the base system prompt workspace-independent and provider prefix caches stable. The docs carry the channel cost model: session-frozen content belongs in before, low-frequency change notices belong in durable history via inject() (paid once, prefix-cached thereafter), and after is reserved for small frequently-refreshed state snapshots re-paid on every request they ride. No shipped producer yet, so ACP snapshot fixtures are byte-identical. --- docs/architecture.md | 19 +-- docs/cordis-catalog/events.md | 40 +++-- docs/core-data-structures/core.md | 42 ++++- docs/core-data-structures/session.md | 30 ++-- docs/event-producer-consumer.md | 23 +-- docs/persistence-catalog.md | 34 ++--- .../2026-07-05-reconstructable-requests.md | 7 +- packages/core/agent-loop/README.md | 6 +- packages/core/agent-loop/src/loop.ts | 43 ++++-- .../agent-loop/tests/interception.spec.ts | 144 +++++++++++++++++- packages/core/agent/README.md | 1 + packages/core/agent/src/types.ts | 94 +++++++++++- packages/core/session/README.md | 2 +- packages/core/session/src/request-header.ts | 52 +++++-- packages/core/session/src/types.ts | 33 ++-- .../core/session/tests/request-header.spec.ts | 51 ++++++- packages/llm/llm/src/types.ts | 6 + packages/support/invariants/src/index.ts | 27 ++-- .../invariants/tests/invariants.spec.ts | 16 ++ scripts/type-equiv.manifest.json | 2 + 20 files changed, 553 insertions(+), 119 deletions(-) diff --git a/docs/architecture.md b/docs/architecture.md index 371b5df579..18138c41cd 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -1,14 +1,14 @@ # DeepSeek Harness Architecture -The **DeepSeek Harness SDK** is an SDK for building agent harnesses using the Cordis framework. The governing principle is simple: **everything is a plugin**. For example, the shipped agent loop is just one plugin in the default bundle, not a privileged kernel. +The **DeepSeek Harness SDK** is an SDK for building agent harnesses on the Cordis framework. The governing principle is simple: **everything is a plugin**. The shipped agent loop is one plugin in the default bundle, not a privileged kernel. -Read this page as the system map before changing `packages/`. It explains how the runtime is shaped, how the default loop moves work, where state lives, and where extensions attach. Type shapes live in [core-data-structures/](core-data-structures/core.md); exact event and service signatures live in the generated [events](cordis-catalog/events.md) and [services](cordis-catalog/services.md) catalogs; package contracts live in the [package map](../packages/README.md); rationale lives in the [RFCs](rfc/README.md). If Cordis itself is new to you, start with the [Cordis primer](cordis-primer.md). +Read this page as the system map before changing `packages/`. It explains how the runtime is shaped, how the default loop moves work, where state lives, and where extensions attach. Type shapes live in [core-data-structures/](core-data-structures/core.md); exact event and service signatures live in the generated [events](cordis-catalog/events.md) and [services](cordis-catalog/services.md) catalogs; package contracts live in the [package map](../packages/README.md); rationale lives in the [RFCs](rfc/README.md). New to Cordis? Start with the [Cordis primer](cordis-primer.md). ## System Shape A running harness is one Cordis context. Packages contribute service keys, typed events, and disposable registrations to that context. Services are the stable call surfaces (`ctx.llm`, `ctx.tools`, `ctx.sessions`); events are interception and notification points (`agent/request`, `tools/pre-execute`, `session/event`); registrations install prompt sections, tool schemas, providers, adapters, and listeners. -The default distribution is a composition, not a hierarchy. `packages/core/` is a repository grouping for the default agent spine; capability seams around it are equally first-class plugins from a Cordis perspective. +The default distribution is a composition, not a hierarchy. `packages/core/` is a repository grouping for the default agent spine; capability seams around it are equally first-class plugins. ### Default Service Spine @@ -46,11 +46,11 @@ Use the event domain to decide where new behavior belongs: ### Interception Semantics -Waterfall events behave like around-middleware: a listener delegates by calling `next()` and vetoes or takes over by returning without it. The full rule lives in [Cordis waterfall semantics](cordis-primer.md#cordis-waterfall-semantics). +Waterfall events behave like around-middleware: a listener delegates by calling `next()` and vetoes or takes over by returning without it. Full rule: [Cordis waterfall semantics](cordis-primer.md#cordis-waterfall-semantics). ## Default Loop Lifecycle -The shipped loop drains queued work, assembles a request, streams a model answer, executes tools, decides whether to continue, and checkpoints durable state. The important architecture is where it pauses: each pause is a documented service call or event seam that another plugin can program against. +The shipped loop drains queued work, assembles a request, streams a model answer, executes tools, decides whether to continue, and checkpoints durable state. The important architecture is where it pauses: each pause is a documented service call or event seam other plugins program against. A **session** is one agent's append-only event log. A **turn** drains one queued batch and runs until the model stops asking for tools and no plugin requests continuation. A **step** is one model request plus the tool executions caused by that response. In the flow below ([sequence companion](agent-lifecycle.md)), quoted names are durable session events and event names are extension seams. @@ -72,7 +72,7 @@ forever: agent/pre-step 'step/start' snapshot the derived messages (the reconstruction boundary) - agent/request (config only) -> log request/header -> llm/stream (frozen) + agent/request (config only) -> agent/request-messages -> log request/header -> llm/stream (frozen) 'assistant/chunk' agent/step-result 'assistant/message' @@ -88,7 +88,7 @@ forever: checkpoint persistence and notify idle/running status ``` -Prompt assembly is single-path: `renderPrompt(assemble({ agent }))` IS the system prompt sent to the model. Plugins contribute ordered sections (static or computed from the per-call `AssembleContext`), tool schemas, and named variables interpolated as `{{name}}` at render — strictly, so an unknown or valueless reference fails the turn instead of shipping a hole. `dsh-system-prompt` itself owns the openers — the static `harness:identity` section (order −100) and the deployment's persona (order 0, from its `persona` config, shared by every agent in the context) — while the shipped loop registers the `model`/`cwd` variables; prompt-fact ownership is pinned by the [prompt-variables RFC](rfc/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md). +Prompt assembly is single-path: `renderPrompt(assemble({ agent }))` IS the system prompt sent to the model. Plugins contribute ordered sections (static or computed from the per-call `AssembleContext`), tool schemas, and named variables interpolated as `{{name}}` at render — strictly, so an unknown or valueless reference fails the turn instead of shipping a hole. `dsh-system-prompt` owns the openers — the static `harness:identity` section (order −100) and the deployment's persona (order 0, its `persona` config, shared context-wide) — while the shipped loop registers the `model`/`cwd` variables; prompt-fact ownership is pinned by the [prompt-variables RFC](rfc/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md). Post-tool context lands after all tool results so tool-call/result adjacency stays stable. Steering drains between steps; leftover steering after a turn is re-queued as ordinary input. @@ -108,7 +108,7 @@ Every session event is turn-enclosed. Reloading a crashed session preserves the The session log is the source of truth. `deriveMessages()` projects session events into the `Message[]` sent to the model; raw `assistant/chunk` events stay in the log for replay and UI fidelity. Replay, fork, resume, transcript rendering, telemetry, and persistence all derive from the same event stream. -**Model-visible ⟺ logged**: the log reconstructs every request — messages at `step/start`, headers by folding `request/header` — and dev invariants assert this ([reconstructability RFC](rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)). +**Model-visible ⟺ logged**: the log reconstructs every request — messages at `step/start` framed by the header's request-only `messagePrefix`/`messageSuffix`, headers by folding `request/header` — and dev invariants assert this ([reconstructability RFC](rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)). Durability is a plugin concern. Persistence backends buffer synchronous `session/event` notifications and the loop awaits a turn-end checkpoint before moving on. The `SessionPersistence` seam stores `SessionEvent` directly, with metadata in `SessionHeader`; JSONL and SQLite share one contract suite. @@ -122,7 +122,7 @@ Streaming is a raw chunk protocol (`block-start` through `finish`) with `BlockAs ### Capability Pattern -A swappable capability usually splits into **interface / implementation / consumer**: the interface owns the `ctx` key and vocabulary; an implementation registers a backend; a consumer exposes model-facing behavior through `ctx.tools` or prompt assembly. The bash trio is the reference shape, and the [capability seam graph](capability-seams.md) shows the current package families. +A swappable capability usually splits into **interface / implementation / consumer**: the interface owns the `ctx` key and vocabulary; an implementation registers a backend; a consumer exposes model-facing behavior through `ctx.tools` or prompt assembly. The bash trio is the reference shape, and the [capability seam graph](capability-seams.md) shows the package families. Some seams bend the template deliberately. LLM keeps interface and consumer vocabulary together because adapters are the implementations. Filesystem adds policy as event gates around provider primitives. Web is one service with search and fetch provider registries, so provider swaps do not rename model tools. Subagents use a named provider registry because multiple delegation backends can coexist; `spawn` starts fresh, `fork` seeds from the parent's completed-turn prefix, and ACP can drive an out-of-process child ([subagent.md](core-data-structures/subagent.md)). @@ -141,6 +141,7 @@ New behavior should attach to a documented seam; changing the shipped loop requi | Add command execution | implement and register a `ctx.bash` backend | | Add filesystem access or policy | implement a `ctx.fs` provider or listen on `fs/*` policy events | | Intercept prompts, requests, tool use, or continuation | listen on the relevant `agent/*` or `tools/*` waterfall | +| Add per-request context that must not become history | contribute request-only messages on `agent/request-messages`; logged on the request header | | Add UI or editor integration | drive `ctx.agents` and render from `session/event` | | Add durable session state | add a `SessionEventMap` member and render/replay from the log | | Fork a live session | use `ctx.sessions.fork(source, boundary?, childSessionId?)` | diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 753cf8f4d0..d62e1ef042 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -23,7 +23,7 @@ An agent was registered in the AgentRegistry and is ready to receive messages. Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:248`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:292`](../../packages/core/agent/src/types.ts) ### `agent/disposed` — emit @@ -35,7 +35,7 @@ An agent was disposed and removed from the registry; its fiber and any in-flight Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:255`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:299`](../../packages/core/agent/src/types.ts) ### `agent/error` — emit @@ -47,7 +47,7 @@ A step or turn errored. The loop reports a failure here (plus the logger) even w Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:404`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:490`](../../packages/core/agent/src/types.ts) ### `agent/pre-step` — serial @@ -61,7 +61,7 @@ Serial (awaited in registration order), not a waterfall: a listener mutates the Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:333`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:377`](../../packages/core/agent/src/types.ts) ### `agent/prompt-submit` — waterfall @@ -73,7 +73,7 @@ Waterfall: decide what happens to ONE drained queued message before it becomes a Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:346`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:390`](../../packages/core/agent/src/types.ts) ### `agent/queued` — emit @@ -85,11 +85,11 @@ A message entered the agent's inbox (queued or steering). `source` is the resolv Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:273`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:317`](../../packages/core/agent/src/types.ts) ### `agent/request` — waterfall -Waterfall: shape the step's call configuration — model switching, sampling overrides — by returning a replacement LlmCallConfig (the frozen seed is the config the loop would otherwise use). Config is ALL a listener shapes here: every request is a pure function of the session log (the reconstructability RFC), so model-visible content flows through the log channels — `inject()`, steering, prompt-submit `additionalContext`, prompt sections via `system-prompt/assemble` — never through request mutation, and the loop records whatever config the request actually uses as a `request/header*` event before dispatch. The step's messages are already snapshotted when this fires (the `step/start` boundary): an `inject()` from a listener here lands in the log but joins the NEXT request. For surface mutation that must precede the snapshot (compaction), use agent/pre-step. Call `next()` to delegate, or return an LlmCallConfig without it to short-circuit. +Waterfall: shape the step's call configuration — model switching, sampling overrides — by returning a replacement LlmCallConfig (the frozen seed is the config the loop would otherwise use). Config is ALL a listener shapes here: every request is a pure function of the session log (the reconstructability RFC), so model-visible content flows through the log channels — `inject()`, steering, prompt-submit `additionalContext`, prompt sections via `system-prompt/assemble`, or header-logged request-only messages via agent/request-messages — never through request mutation, and the loop records whatever config the request actually uses as a `request/header*` event before dispatch. The step's messages are already snapshotted when this fires (the `step/start` boundary): an `inject()` from a listener here lands in the log but joins the NEXT request. For surface mutation that must precede the snapshot (compaction), use agent/pre-step. Call `next()` to delegate, or return an LlmCallConfig without it to short-circuit. ```ts cordis-catalog 'agent/request'(agent: Agent, turn: number, step: number, config: LlmCallConfig, next: () => Promise): Promise @@ -97,7 +97,23 @@ Waterfall: shape the step's call configuration — model switching, sampling ove Types: [Agent](../core-data-structures/core.md) · [LlmCallConfig](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:369`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:414`](../../packages/core/agent/src/types.ts) + +### `agent/request-messages` — waterfall + +Waterfall: contribute request-ONLY messages around the derived history — a RequestMessages whose `before` messages precede the boundary snapshot in `GenerateOptions.messages` and whose `after` messages follow it. Fires once per step, inside the open step, after the agent/request config waterfall and before the loop logs the request header. This is the seam for per-request advisory context the model must see NOW but that must NOT become durable history (a skills catalog, an environment reminder): contributions are recorded on the request's `request/header*` event (`EpochHeader.messagePrefix` / `messageSuffix`) — never as session messages — so `Session.deriveMessages()` stays untouched and the request remains reconstructable from the log. + +The seed is frozen and empty; a contributing listener returns a NEW RequestMessages extending `await next()` (spread its arrays — never mutate them), so contributions compose across plugins in registration order. The boundary snapshot is already taken when this fires: a `session.append`/`inject()` from a listener here lands in the log but joins the NEXT request — contribute through the returned value, not the session. Call `next()` to delegate, or return a RequestMessages without it to short-circuit. + +Pick the channel by change frequency (the cost model): a contribution rides the request's uncached tail, re-tokenized at full price on EVERY request it appears in — cheap only while small. Session-FROZEN content belongs in `before`, where it extends the cacheable prefix at zero marginal cost (but changing it mid-session invalidates the provider cache for the entire history after it). A LOW-FREQUENCY change notice belongs in durable history via `agent.inject()` — appended once, prefix-cached thereafter. Reserve `after` for small, frequently refreshed state snapshots, where a durable chain of stale copies would bloat the log and mislead the model. + +```ts cordis-catalog +'agent/request-messages'(agent: Agent, turn: number, step: number, messages: RequestMessages, context: RequestMessagesContext, next: () => Promise): Promise +``` + +Types: [Agent](../core-data-structures/core.md) + +Source: [`packages/core/agent/src/types.ts:455`](../../packages/core/agent/src/types.ts) ### `agent/session-start` — emit @@ -109,7 +125,7 @@ The agent's session lifecycle began, fired once before its first turn. `source` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:288`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:332`](../../packages/core/agent/src/types.ts) ### `agent/status` — emit @@ -121,7 +137,7 @@ Agent status changed (`idle` ⇄ `running`, or → `disposed`). Drive lifecycle Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:264`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:308`](../../packages/core/agent/src/types.ts) ### `agent/step-result` — waterfall @@ -133,7 +149,7 @@ Waterfall: post-process the assembled assistant Message before tool dispatch (va Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:379`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:465`](../../packages/core/agent/src/types.ts) ### `agent/turn-continuation` — waterfall @@ -145,7 +161,7 @@ Waterfall: override the turn-continuation decision via a typed ContinuationDecis Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:392`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:478`](../../packages/core/agent/src/types.ts) ## `fs/*` diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index 8cd9f1c30b..62dfb41c64 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -127,6 +127,12 @@ Source: [`packages/llm/llm/src/types.ts`](../../packages/llm/llm/src/types.ts) ```ts type-equiv interface GenerateOptions { model: string + /** + * Ordered conversation messages, exactly as the provider sees them (after + * the `system` slot). A loop-built request assembles them as + * `EpochHeader.messagePrefix` + the derived history + `messageSuffix` + * (dsh-agent-loop); a hand-built one-shot passes any list. + */ messages: Message[] /** System prompt text (adapters map to the provider's system slot). */ system?: string @@ -187,7 +193,9 @@ The model-facing `ToolSchema` is the wire shape; the registered `ToolDefinition` ### The request envelope: `LlmCallConfig` and the logged header -Requests are built by the loop, not shaped per call: the non-content half of a request — the `EpochHeader`: this call configuration plus the rendered system prompt and assembled tool schemas — is logged session state (`request/header` snapshot and delta events, [session.md](session.md#the-request-header-events-requestheader-and-requestheader-delta)), so every conversation request is a pure function of the session log ([reconstructability RFC](../rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)). The `agent/request` waterfall receives a frozen `LlmCallConfig` seed and a listener returns a replacement to switch model or sampling — the loop logs whatever the request actually uses. Loop-built requests arrive at `llm/stream` deep-frozen; mutation throws. +Requests are built by the loop, not shaped per call: the non-history half of a request — the `EpochHeader`: this call configuration plus the rendered system prompt, assembled tool schemas, and any request-only messages — is logged session state (`request/header` snapshot and delta events, [session.md](session.md#the-request-header-events-requestheader-and-requestheader-delta)), so every conversation request is a pure function of the session log ([reconstructability RFC](../rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)). The `agent/request` waterfall receives a frozen `LlmCallConfig` seed and a listener returns a replacement to switch model or sampling; the `agent/request-messages` waterfall contributes request-only messages framing the derived history (recorded as the header's `messagePrefix`/`messageSuffix`) — the loop logs whatever the request actually uses. Loop-built requests arrive at `llm/stream` deep-frozen; mutation throws. + +On the wire, a loop-built request reads in this order: the `system` slot (the rendered prompt assembly) → `messagePrefix` (request-only `before` contributions) → the derived history — the boundary snapshot, whose tail is the newest `user/message` on a turn's first step and the previous step's tool results on later steps — → `messageSuffix` (request-only `after` contributions, the last thing the model reads). The framing arrays never enter the derived history; their durable record is the header events, and the dev invariant recomputes exactly this equation against every loop-built request. FIXME(call-config-shape): revisit the exact definition of this type — which fields are genuinely epoch-level for cache purposes (`model` certainly; the sampling scalars sit here out of caution), and where provider-specific extras (reasoning options, extra body params) belong when an adapter needs them. @@ -320,7 +328,7 @@ interface Agent { } ``` -`AgentStatus` is `'idle' | 'running' | 'disposed'`. `AgentId` is a branded string. `AgentOptions` (`model?`) is merge-extensible — plugins add creation options by declaration merging; the persona is NOT an agent option but the `dsh-system-prompt` plugin's `persona` config, shared context-wide. The `agent/*` event taxonomy (lifecycle emits incl. `agent/session-start`, the serial `agent/pre-step` surface-mutation seam, and the `agent/prompt-submit`/`agent/request`/`agent/step-result`/`agent/turn-continuation` waterfalls) is in [architecture.md § Event taxonomy](../architecture.md#event-taxonomy); turn/step boundaries are durable `session/event` records, not `agent/*` emits. +`AgentStatus` is `'idle' | 'running' | 'disposed'`. `AgentId` is a branded string. `AgentOptions` (`model?`) is merge-extensible — plugins add creation options by declaration merging; the persona is NOT an agent option but the `dsh-system-prompt` plugin's `persona` config, shared context-wide. The `agent/*` event taxonomy (lifecycle emits incl. `agent/session-start`, the serial `agent/pre-step` surface-mutation seam, and the `agent/prompt-submit`/`agent/request`/`agent/request-messages`/`agent/step-result`/`agent/turn-continuation` waterfalls) is in [architecture.md § Event taxonomy](../architecture.md#event-taxonomy); turn/step boundaries are durable `session/event` records, not `agent/*` emits. ## Interception decisions @@ -357,6 +365,36 @@ type ContinuationDecision = type SessionStartSource = 'startup' | 'resume' | 'clear' | 'compact' ``` +`agent/request-messages` returns a `RequestMessages` — request-only `before`/`after` messages framing the derived history for ONE request. Not a Decision union: the seam contributes content instead of vetoing, so the shape is the contribution itself; the loop records the non-empty arrays as the header's `messagePrefix`/`messageSuffix` ([the request envelope](#the-request-envelope-llmcallconfig-and-the-logged-header)), and `deriveMessages()` never returns them: + +```ts type-equiv +interface RequestMessages { + /** Messages placed before the derived history in the request. */ + before: Message[] + /** Messages placed after the derived history in the request. */ + after: Message[] +} +``` + +Listeners read the already-fixed request facts from a `RequestMessagesContext` (decide what to contribute from these; never mutate them): + +```ts type-equiv +interface RequestMessagesContext { + /** The rendered system prompt this request will carry. */ + system: string + /** The prompt assembly the system prompt was rendered from (sections + tools). */ + assembly: PromptAssembly + /** + * The boundary snapshot: the derived history this request will carry between + * `before` and `after`. A frozen snapshot — treat it as read-only; content + * for the NEXT request flows through the log channels. + */ + boundaryMessages: readonly Message[] + /** Aborts in-flight listener work when the step is torn down. */ + signal: AbortSignal +} +``` + ## `ToolDefinition` The one pipeline-authoring type that is core: what every registered tool *is* — a model-facing `ToolSchema` plus an `execute` function and optional UI presenters. A tool author rarely constructs it by hand (the `defineTool` DSL builds it with typed args), but it is the contract the registry holds and the loop dispatches through. diff --git a/docs/core-data-structures/session.md b/docs/core-data-structures/session.md index 6c4712114f..ddfa77a9ff 100644 --- a/docs/core-data-structures/session.md +++ b/docs/core-data-structures/session.md @@ -74,16 +74,15 @@ interface SessionEventMap { */ 'request/header': { header: EpochHeader; reason: RequestHeaderReason } /** - * Amendment to the folded {@link EpochHeader}: at least one of a - * {@link SystemDelta}, a {@link ToolsDelta}, or a whole replacement - * {@link LlmCallConfig} (four scalars — not worth diffing). Appended by the - * loop inside the step, before dispatch, when the header for this request - * differs from the fold of the log so far; the writer verifies - * `applyHeaderDelta(previous, delta)` reproduces the new header exactly and - * falls back to a `'fallback'` `request/header` snapshot when it cannot, so - * a logged delta ALWAYS round-trips. NOT a {@link SurfaceEventType}. + * Amendment to the folded {@link EpochHeader}: system line-trim, name-keyed + * tools delta, whole replacement config, or whole replacement request-only + * message arrays (an EMPTY array encodes the transition to "none"). The + * writer verifies `applyHeaderDelta(previous, delta)` reproduces the new + * header exactly and falls back to a `'fallback'` `request/header` snapshot + * when it cannot, so a logged delta ALWAYS round-trips. NOT a + * {@link SurfaceEventType}. */ - 'request/header-delta': { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig } + 'request/header-delta': { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig; messagePrefix?: Message[]; messageSuffix?: Message[] } } ``` @@ -100,7 +99,7 @@ export interface TodoItem { ### The request header events: `request/header` and `request/header-delta` -The request envelope — the `EpochHeader` (call config + rendered system prompt + assembled tool schemas) — is logged session state, so every conversation request is a pure function of the log (the reconstructability RFC). A `request/header` snapshot (reason `'initial' | 'resume' | 'fallback'`) anchors the fold at conversation birth, process boundaries, and delta-encoding fallbacks; `request/header-delta` events amend it mid-run. `foldRequestHeader(events)` reconstructs the header any request was built under; the writer round-trip-verifies every delta before logging it, so a well-formed log always folds. Neither is a `SurfaceEventType` — they produce no LLM message. +The request envelope — the `EpochHeader` (call config + rendered system prompt + assembled tool schemas + request-only messages) — is logged session state, so every conversation request is a pure function of the log (the reconstructability RFC). A `request/header` snapshot (reason `'initial' | 'resume' | 'fallback'`) anchors the fold at conversation birth, process boundaries, and delta-encoding fallbacks; `request/header-delta` events amend it mid-run. `foldRequestHeader(events)` reconstructs the header any request was built under; the writer round-trip-verifies every delta before logging it, so a well-formed log always folds. Neither is a `SurfaceEventType` — they produce no LLM message. ```ts type-equiv export interface EpochHeader { @@ -110,10 +109,19 @@ export interface EpochHeader { system?: string /** Assembled tool schemas; absent for a tool-less request. */ tools?: ToolSchema[] + /** + * Request-only messages sent BEFORE the derived history (the + * `agent/request-messages` waterfall's `before` contributions). Not session + * history — `deriveMessages()` never returns them — so the header is their + * only durable record; absent when the request carried none. + */ + messagePrefix?: Message[] + /** Request-only messages sent AFTER the derived history; absent when none. */ + messageSuffix?: Message[] } ``` -Canonical form: an empty system prompt and an empty tool list are ABSENT fields, matching how requests are built. The delta payloads (`SystemDelta` — a common-prefix/suffix line trim; `ToolsDelta` — name-keyed added/removed/changed) live beside the events in [`packages/core/session/src/types.ts`](../../packages/core/session/src/types.ts). +Canonical form: an empty system prompt, an empty tool list, and empty request-only message arrays are ABSENT fields, matching how requests are built. `messagePrefix`/`messageSuffix` are the durable record of the `agent/request-messages` waterfall's contributions (the request is `messagePrefix + derived history + messageSuffix`); their deltas replace the array whole, an empty array encoding the transition back to absence. The other delta payloads (`SystemDelta` — a common-prefix/suffix line trim; `ToolsDelta` — name-keyed added/removed/changed) live beside the events in [`packages/core/session/src/types.ts`](../../packages/core/session/src/types.ts). ## `SessionEvent` — one log entry diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 24a2793826..44bbe79144 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -7,17 +7,18 @@ This matrix shows which packages dispatch each harness-owned event and which pac | Event | Mode | Declared in | Dispatchers | Listeners | | --- | --- | --- | --- | --- | -| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:248`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:255`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:404`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:333`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | -| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:346`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:273`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:369`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:288`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:264`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:379`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:392`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:292`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:299`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:490`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:377`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | +| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:390`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:317`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:414`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/request-messages` | `waterfall` | [`packages/core/agent/src/types.ts:455`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:332`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:308`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:465`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:478`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | diff --git a/docs/persistence-catalog.md b/docs/persistence-catalog.md index c29cbc0d99..b3618d93f8 100644 --- a/docs/persistence-catalog.md +++ b/docs/persistence-catalog.md @@ -23,7 +23,7 @@ Raw stream chunk — token-level replay fidelity. Types: [StreamChunk](core-data-structures/llm-streaming.md) -Source: [`packages/core/session/src/types.ts:298`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:309`](../packages/core/session/src/types.ts) #### `assistant/message` — surface @@ -35,7 +35,7 @@ Assembled assistant message for one step (derived history uses this). Carries th Types: [ContentBlock](core-data-structures/core.md) · [TokenUsage](core-data-structures/llm-streaming.md) -Source: [`packages/core/session/src/types.ts:305`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:316`](../packages/core/session/src/types.ts) ### `compact/*` @@ -83,7 +83,7 @@ In-session context injection (file-change notices, subdir AGENTS.md, skill conte Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:296`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:307`](../packages/core/session/src/types.ts) ### `hook/*` @@ -119,7 +119,7 @@ A queued prompt an `agent/prompt-submit` listener VETOED — the durable record Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:290`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:301`](../packages/core/session/src/types.ts) ### `request/*` @@ -131,17 +131,17 @@ Full snapshot of the EpochHeader the NEXT request is built under, with the Reque 'request/header': { header: EpochHeader; reason: RequestHeaderReason } ``` -Source: [`packages/core/session/src/types.ts:350`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:361`](../packages/core/session/src/types.ts) #### `request/header-delta` — log-only -Amendment to the folded EpochHeader: at least one of a SystemDelta, a ToolsDelta, or a whole replacement LlmCallConfig (four scalars — not worth diffing). Appended by the loop inside the step, before dispatch, when the header for this request differs from the fold of the log so far; the writer verifies `applyHeaderDelta(previous, delta)` reproduces the new header exactly and falls back to a `'fallback'` `request/header` snapshot when it cannot, so a logged delta ALWAYS round-trips. NOT a SurfaceEventType. +Amendment to the folded EpochHeader: at least one of a SystemDelta, a ToolsDelta, a whole replacement LlmCallConfig (four scalars — not worth diffing), or a whole replacement request-only message array (`messagePrefix`/`messageSuffix` — small advisory content, replaced whole; an EMPTY array encodes the transition to "none", mirroring the canonical form's absent field). Appended by the loop inside the step, before dispatch, when the header for this request differs from the fold of the log so far; the writer verifies `applyHeaderDelta(previous, delta)` reproduces the new header exactly and falls back to a `'fallback'` `request/header` snapshot when it cannot, so a logged delta ALWAYS round-trips. NOT a SurfaceEventType. ```ts persistence-catalog -'request/header-delta': { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig } +'request/header-delta': { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig; messagePrefix?: Message[]; messageSuffix?: Message[] } ``` -Source: [`packages/core/session/src/types.ts:361`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:376`](../packages/core/session/src/types.ts) ### `steering/*` @@ -155,7 +155,7 @@ Steering content injected between steps of a running turn. Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:323`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:334`](../packages/core/session/src/types.ts) ### `step/*` @@ -167,7 +167,7 @@ Closes step `step` of turn `turn`. 'step/end': { turn: number; step: number } ``` -Source: [`packages/core/session/src/types.ts:277`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:288`](../packages/core/session/src/types.ts) #### `step/start` — log-only @@ -177,7 +177,7 @@ Opens step `step` of turn `turn` — one model call plus the tool executions it 'step/start': { turn: number; step: number } ``` -Source: [`packages/core/session/src/types.ts:275`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:286`](../packages/core/session/src/types.ts) ### `todo/*` @@ -193,7 +193,7 @@ NOT a SurfaceEventType: it produces no LLM message and never reaches `deriveMess Types: [TodoItem](core-data-structures/session.md) -Source: [`packages/core/session/src/types.ts:337`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:348`](../packages/core/session/src/types.ts) ### `tool/*` @@ -207,7 +207,7 @@ The model requested one tool invocation: `name` with the raw `arguments` JSON st Types: [CallId](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:311`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:322`](../packages/core/session/src/types.ts) #### `tool/result` — surface @@ -219,7 +219,7 @@ A completed tool call's model-facing result, plus an optional tool-private `meta Types: [CallId](core-data-structures/core.md) · [ContentBlock](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:321`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:332`](../packages/core/session/src/types.ts) ### `turn/*` @@ -233,7 +233,7 @@ Closes turn `turn` with the TurnEndReason that ended it. The loop fires the awai Types: [TurnEndReason](core-data-structures/session.md) -Source: [`packages/core/session/src/types.ts:273`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:284`](../packages/core/session/src/types.ts) #### `turn/start` — log-only @@ -245,7 +245,7 @@ Opens turn `turn`. `trigger` records what started it — a drained message batch Types: [TurnTrigger](core-data-structures/session.md) -Source: [`packages/core/session/src/types.ts:267`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:278`](../packages/core/session/src/types.ts) ### `user/*` @@ -259,4 +259,4 @@ A user-visible prompt (queued message drained at turn start). Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:279`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:290`](../packages/core/session/src/types.ts) diff --git a/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md b/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md index 601e64f70a..e17679f913 100644 --- a/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md +++ b/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md @@ -20,13 +20,13 @@ Prefix-cache stability is corollary #1, not the headline: an append-only log pro **Messages.** `Session.deriveMessages()` is cached: each surface node is projected exactly once, when first seen, through the public per-node function `deriveEventMessage(event)`; a surface rewrite (a compaction `replace` — `SurfaceManager.replaceGeneration`) rebuilds. Callers get a fresh array per call over shared, deep-frozen messages: mutating logged history through a projection is unrepresentable (it throws), replacing the old clone-per-call isolation. External reconstructors fold the same public function over a log prefix, so no two paths can disagree. -**The header.** The request's non-content half — `EpochHeader`: call config (`LlmCallConfig`: model + sampling scalars), rendered system prompt, assembled tool schemas — is logged session state, in canonical form (empty system/tools ≡ absent). Two log-only, turn-enclosed events in dsh-session carry it: `request/header`, a full snapshot with reason `'initial' | 'resume' | 'fallback'`, and `request/header-delta`, an amendment (`SystemDelta`: a common-prefix/suffix line trim; `ToolsDelta`: name-keyed added/removed/changed; `config`: replaced whole). The pure trio `foldRequestHeader` / `diffHeader` / `applyHeaderDelta` reconstructs; the live session tracks the fold with the same lazy cursor as the message cache. Snapshots anchor the fold where a fold needs anchors — conversation birth and process boundaries — and each loop instance appends one on its first request (`'initial'` when the log has none, `'resume'` otherwise, even when nothing changed: the boundary itself is a recorded fact, and cross-restart drift becomes attributable while an unchanged header resumes byte-identical). Deltas are an encoding optimization with a safety valve, never a correctness dependency: the writer verifies `applyHeaderDelta(prev, delta)` reproduces the new header exactly and records a `'fallback'` snapshot when the encoding cannot express a change (a pure tool reordering), so a well-formed log always folds. +**The header.** The request's non-history half — `EpochHeader`: call config (`LlmCallConfig`: model + sampling scalars), rendered system prompt, assembled tool schemas, and any request-only messages (`messagePrefix`/`messageSuffix`, below) — is logged session state, in canonical form (empty system/tools/message arrays ≡ absent). Two log-only, turn-enclosed events in dsh-session carry it: `request/header`, a full snapshot with reason `'initial' | 'resume' | 'fallback'`, and `request/header-delta`, an amendment (`SystemDelta`: a common-prefix/suffix line trim; `ToolsDelta`: name-keyed added/removed/changed; `config`: replaced whole; `messagePrefix`/`messageSuffix`: replaced whole, an empty array encoding the transition to absence). The pure trio `foldRequestHeader` / `diffHeader` / `applyHeaderDelta` reconstructs; the live session tracks the fold with the same lazy cursor as the message cache. Snapshots anchor the fold where a fold needs anchors — conversation birth and process boundaries — and each loop instance appends one on its first request (`'initial'` when the log has none, `'resume'` otherwise, even when nothing changed: the boundary itself is a recorded fact, and cross-restart drift becomes attributable while an unchanged header resumes byte-identical). Deltas are an encoding optimization with a safety valve, never a correctness dependency: the writer verifies `applyHeaderDelta(prev, delta)` reproduces the new header exactly and records a `'fallback'` snapshot when the encoding cannot express a change (a pure tool reordering), so a well-formed log always folds. -**The loop, transmission-stateless.** Per step: render assembly (every step — value comparison needs no change-signal discipline, and a section that varies per step surfaces as a *logged* header event per step instead of a silent bust) → `agent/pre-step` (compaction's surface mutations land before derivation) → **messages snapshot, then `step/start` appended as the next operation in the same synchronous frame** → seed the call config (first request of the instance: from `AgentOptions`, so explicit options always beat the logged baseline — fork model-overrides and resume reconfiguration stay correct; afterwards: from the folded header) → the `agent/request` waterfall, re-typed `(agent, turn, step, config: LlmCallConfig, next) → LlmCallConfig` — a frozen seed and a returned replacement are ALL a listener shapes; content flows through the log channels (`inject()`, steering, prompt-submit `additionalContext`, sections via `system-prompt/assemble`) — → the header event the request owes the log → build `GenerateOptions` from the snapshot + header, deep-freeze (`deepFreeze` exempts the `AbortSignal`, the one live control channel — freezing one breaks `AbortController.abort()`), dispatch. The loop's only in-process bookkeeping is one boolean: whether this instance has logged its anchoring snapshot. +**The loop, transmission-stateless.** Per step: render assembly (every step — value comparison needs no change-signal discipline, and a section that varies per step surfaces as a *logged* header event per step instead of a silent bust) → `agent/pre-step` (compaction's surface mutations land before derivation) → **messages snapshot, then `step/start` appended as the next operation in the same synchronous frame** → seed the call config (first request of the instance: from `AgentOptions`, so explicit options always beat the logged baseline — fork model-overrides and resume reconfiguration stay correct; afterwards: from the folded header) → the `agent/request` waterfall, re-typed `(agent, turn, step, config: LlmCallConfig, next) → LlmCallConfig` — a frozen seed and a returned replacement are ALL a listener shapes; durable content flows through the log channels (`inject()`, steering, prompt-submit `additionalContext`, sections via `system-prompt/assemble`) — → the `agent/request-messages` waterfall — request-ONLY `before`/`after` messages framing the boundary snapshot (a frozen empty seed, contributions returned as an extension of `next()`; the per-request advisory channel: content the model must see now that must NOT become history — a skills catalog, an environment reminder) — → the header event the request owes the log, carrying those contributions as `messagePrefix`/`messageSuffix` (no session event carries them, so the header is their only durable record) → build `GenerateOptions` from `messagePrefix + snapshot + messageSuffix` + header, deep-freeze (`deepFreeze` exempts the `AbortSignal`, the one live control channel — freezing one breaks `AbortController.abort()`), dispatch. The loop's only in-process bookkeeping is one boolean: whether this instance has logged its anchoring snapshot. **The reconstruction boundary is `step/start`, unconditionally.** A step's messages are the derivation over `events[0..stepStartSeq)`. Because the snapshot precedes the `step/start` append in the same synchronous frame, nothing can enter this request past the boundary: an `agent.inject()` from an `agent/request` listener (or any concurrent task, or a `session/event` listener firing on `step/start` itself) lands in the log after the boundary and joins the NEXT request. For waterfall-window appends this matches the prior loop (it also derived before its waterfall); for a synchronous `step/start` listener it is a deliberate change — such a listener could previously reach the current request — and `agent/pre-step` is the sanctioned seam for content that must affect the CURRENT request. A step's header for reconstruction is the fold after its own `request/header*` event (which sits between its `step/start` and first response event) or the fold carried forward. -**Enforcement.** Dev-mode ([dsh-invariants](../../../../packages/support/invariants/src/index.ts)), on `llm/stream`: a frozen request with a live `sessionId` — the loop-built marker; hand-built one-shots are unfrozen and skipped — must carry messages deep-equal to the boundary derivation, rebuilt through a FRESH `Session` over `events[0..stepStartSeq)` so the live cache cannot vouch for itself, and header fields equal to `foldRequestHeader` over the log. There is no divergence allowance and nothing to allow: no seam can put unlogged content into a request. `prepend: true` only defends against the replay adapter's short-circuit (an append-registered listener); two prepended listeners have no defined mutual order in cordis, so correctness rests on the seq-bounded fold, never on listener timing. Measurement stays lean: the with-key e2e ([request-cache.e2e.ts](../../../../packages/core/agent-loop/tests/request-cache.e2e.ts)) proves `usage.cacheReadTokens > 0` on every request after the first against the live API, and per-step usage in the log is the production observable — a header event or compaction shows up as a cache-read collapse on the next step. +**Enforcement.** Dev-mode ([dsh-invariants](../../../../packages/support/invariants/src/index.ts)), on `llm/stream`: a frozen request with a live `sessionId` — the loop-built marker; hand-built one-shots are unfrozen and skipped — must carry messages deep-equal to the folded header's `messagePrefix`, then the boundary derivation, then its `messageSuffix` — the derivation rebuilt through a FRESH `Session` over `events[0..stepStartSeq)` so the live cache cannot vouch for itself — and header fields equal to `foldRequestHeader` over the log. There is no divergence allowance and nothing to allow: no seam can put unlogged content into a request — the `agent/request-messages` seam's contributions enter only because the header event records them first. `prepend: true` only defends against the replay adapter's short-circuit (an append-registered listener); two prepended listeners have no defined mutual order in cordis, so correctness rests on the seq-bounded fold, never on listener timing. Measurement stays lean: the with-key e2e ([request-cache.e2e.ts](../../../../packages/core/agent-loop/tests/request-cache.e2e.ts)) proves `usage.cacheReadTokens > 0` on every request after the first against the live API, and per-step usage in the log is the production observable — a header event or compaction shows up as a cache-read collapse on the next step. ### The MiniCode shape: adopted, with the provenance arrow inverted @@ -44,6 +44,7 @@ What survives from `LLMClient`: the conversation is maintained, not rebuilt — ## Consequences - A request that is not explained by the log cannot be constructed by accident — not by the loop, not by a listener; mutating a built request throws; every header change is a durable, diffable log event. +- Choosing between the advisory channels is a change-frequency cost decision, and the seam does not hide it: an `agent/request-messages` contribution rides the request's uncached tail and is re-tokenized at full price on every request it appears in (a `before` contribution instead extends the cacheable prefix at zero marginal cost while stable, but a mid-session change invalidates the provider cache for the entire history after it), whereas an `inject()`ed `context/message` is paid once and prefix-cached thereafter at the price of accumulating durably in history and the log. Route session-frozen content to `before`, low-frequency change notices to `inject()`, and reserve `after` for small, frequently refreshed state snapshots where a durable chain of stale copies would bloat the log and mislead the model. - What still costs full price at the provider is inherent and logged: compaction (its `compact/*` events and replace node), a real prompt/tool change (`request/header-delta`), a config switch (ditto), a process boundary with drift (`'resume'` snapshot differing from its predecessor). The provider's own reasoning-content exclusion is managed server-side. - The `step/start`-listener behavior change (above) is the one observable semantics change for plugins; `agent/pre-step` is the current-request seam. - Tool-result trimming (planned) needs no new mechanism: a logged single-node surface replace (`start === end`) carrying a trimmed `tool/result` under the same `callId` — compaction-family, replay-correct, cache-bust batched by the same pressure logic. diff --git a/packages/core/agent-loop/README.md b/packages/core/agent-loop/README.md index ed651ca7f0..2afa08850a 100644 --- a/packages/core/agent-loop/README.md +++ b/packages/core/agent-loop/README.md @@ -59,8 +59,10 @@ forever: boundary = session.deriveMessages() ⟵ reconstruction boundary: same sync frame, session('step/start') strictly before step/start config = waterfall agent/request ⟵ frozen seed; return a replacement to switch + reqMsgs = waterfall agent/request-messages ⟵ request-only before/after messages; recorded + on the header, never session history session('request/header'[-delta]) ⟵ the header event this request owes the log - stream llm.stream(freeze({header..., messages: boundary})) → session('assistant/chunk') + stream llm.stream(freeze({header..., messages: before+boundary+after})) → session('assistant/chunk') message = waterfall agent/step-result session('assistant/message') each tool-call: session('tool/call') @@ -84,7 +86,7 @@ Cancellation: `agent.cancel()` is the single public stop primitive — it clears ### What is NOT here Everything that goes beyond "call the model, run the tools, repeat" belongs to plugins listening on the event taxonomy: -- Hooks: `agent/session-start`, `agent/prompt-submit`, `agent/pre-step`, `agent/request`, `agent/step-result`, `tools/pre-execute`, `tools/post-execute`, `agent/turn-continuation` +- Hooks: `agent/session-start`, `agent/prompt-submit`, `agent/pre-step`, `agent/request`, `agent/request-messages`, `agent/step-result`, `tools/pre-execute`, `tools/post-execute`, `agent/turn-continuation` - Compaction: `agent/pre-step` - Sandbox, permission, plan mode: `tools/pre-execute` (deny/ask gate), `tools/post-execute` - Sub-agents: implemented outside the loop as `ctx.subagents` providers; in-process providers use `ctx.agents.create()` and owned `AgentHandle` teardown, while child streaming/progress and background/poll collection remain deferred. diff --git a/packages/core/agent-loop/src/loop.ts b/packages/core/agent-loop/src/loop.ts index 9484f0ad5f..600bb211a1 100644 --- a/packages/core/agent-loop/src/loop.ts +++ b/packages/core/agent-loop/src/loop.ts @@ -10,7 +10,7 @@ import type { Context } from 'cordis' import type { FinishReason, GenerateOptions, LlmCallConfig, Message } from '@deepseek-ai/dsh-llm' import { BlockAssembler, HarnessError, deepFreeze } from '@deepseek-ai/dsh-llm' -import type { ContinuationDecision, HookContext, PromptDecision } from '@deepseek-ai/dsh-agent' +import type { ContinuationDecision, HookContext, PromptDecision, RequestMessages } from '@deepseek-ai/dsh-agent' import { canonicalHeader } from '@deepseek-ai/dsh-session' import type { Session, TurnEndReason, TurnTrigger } from '@deepseek-ai/dsh-session' import { createTransmissionLog, recordRequestHeader } from './request-log.ts' @@ -161,9 +161,11 @@ export interface LoopHandle { * boundary = session.deriveMessages() ⟵ the reconstruction boundary: snapshot in the * session('step/start') same sync frame, strictly before step/start * config = waterfall agent/request(config) ⟵ frozen seed; a returned replacement switches + * reqMsgs = waterfall agent/request-messages ⟵ request-only before/after messages; logged on + * the header, never session history * session('request/header'|'request/header-delta') ⟵ the header event this request owes the * log (initial/resume anchor, delta, fallback) - * req = freeze({header..., messages: boundary, sessionId, signal}) + * req = freeze({header..., messages: before+boundary+after, sessionId, signal}) * stream ctx.llm.stream(req) ⟵ waterfall llm/stream (raw chunks, frozen req) * session('assistant/chunk') * msg = waterfall agent/step-result ⟵ BEFORE the log append, so the @@ -671,11 +673,11 @@ function drainSteering(agent: ReactLoopAgent, turn: number): boolean { } /** One step: build the request from the boundary snapshot + the step's - * header → log the header event the request owes → stream model → record → - * execute tools. The caller assembles the system prompt, fires the - * `agent/pre-step` seam, snapshots the derivation, and opens the step BEFORE - * calling this, so `boundaryMessages` is exactly the surface prefix at - * step/start and already reflects any compaction. */ + * header → collect request-only messages → log the header event the request + * owes → stream model → record → execute tools. The caller assembles the + * system prompt, fires the `agent/pre-step` seam, snapshots the derivation, + * and opens the step BEFORE calling this, so `boundaryMessages` is exactly + * the surface prefix at step/start and already reflects any compaction. */ async function runStep( ctx: Context, agent: ReactLoopAgent, @@ -715,22 +717,43 @@ async function runStep( throw new Error(`agent "${agent.id}" has no model: set AgentOptions.model or supply one via the agent/request waterfall`) } + // Collect request-ONLY messages: `before` contributions precede the boundary + // snapshot in the request, `after` contributions follow it. They are not + // session history — the header event below is their only durable record + // (EpochHeader.messagePrefix/messageSuffix), which keeps the request a pure + // function of the log. The frozen empty seed serves both the listener chain + // and the no-listener fallback: a contribution is a RETURNED extension of + // `await next()`, never an in-place push. Fired AFTER the boundary snapshot, + // so a listener's session append lands past the boundary and joins the NEXT + // request — the same window rule as the `agent/request` waterfall. + const emptyRequestMessages: RequestMessages = deepFreeze({ before: [], after: [] }) + const requestMessages = await ctx.waterfall( + 'agent/request-messages', agent, turn, step, emptyRequestMessages, + { system, assembly, boundaryMessages, signal }, + () => Promise.resolve(emptyRequestMessages), + ) + // The request header (the log's request/header* vocabulary): canonical form, - // recorded before dispatch so the log always explains the request. + // recorded before dispatch so the log always explains the request — + // including the request-only messages, which no other event carries. const header = canonicalHeader({ config, ...system ? { system } : {}, ...assembly.tools.length > 0 ? { tools: assembly.tools } : {}, + ...requestMessages.before.length > 0 ? { messagePrefix: requestMessages.before } : {}, + ...requestMessages.after.length > 0 ? { messageSuffix: requestMessages.after } : {}, }) recordRequestHeader(session, transmission, header) // Build and freeze: the request is a pure function of (boundary snapshot, // logged header) — llm/stream listeners and adapters read it, mutation // throws. sessionId + frozen is the loop-built marker the dev invariant - // keys on. + // keys on. Message order: header.messagePrefix, then the boundary snapshot, + // then header.messageSuffix — the reconstruction equation the invariant + // recomputes. const request: GenerateOptions = deepFreeze({ model: header.config.model, - messages: boundaryMessages, + messages: [...header.messagePrefix ?? [], ...boundaryMessages, ...header.messageSuffix ?? []], ...header.system !== undefined ? { system: header.system } : {}, ...header.tools !== undefined ? { tools: header.tools } : {}, ...header.config.temperature !== undefined ? { temperature: header.config.temperature } : {}, diff --git a/packages/core/agent-loop/tests/interception.spec.ts b/packages/core/agent-loop/tests/interception.spec.ts index e76ac30fa9..36b9100b85 100644 --- a/packages/core/agent-loop/tests/interception.spec.ts +++ b/packages/core/agent-loop/tests/interception.spec.ts @@ -1,13 +1,14 @@ import { describe, expect, it } from 'vitest' import { Context } from 'cordis' -import LlmService, { CallId } from '@deepseek-ai/dsh-llm' -import SessionStore, { type SessionEvent, type TurnEndReason } from '@deepseek-ai/dsh-session' +import LlmService, { CallId, type Message } from '@deepseek-ai/dsh-llm' +import SessionStore, { foldRequestHeader, type SessionEvent, type TurnEndReason } from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry, { defineTool, type PostToolDecision, type PreToolDecision } from '@deepseek-ai/dsh-tools' import AgentRegistry, { AgentId, type ContinuationDecision, type PromptDecision, + type RequestMessages, type SessionStartSource, } from '@deepseek-ai/dsh-agent' import AgentLoop, { type ReactLoopAgent } from '@deepseek-ai/dsh-agent-loop' @@ -310,6 +311,145 @@ describe('agent/session-start', () => { }) }) +describe('agent/request-messages (RequestMessages)', () => { + it('frames the derived history: before precedes it, after follows it, and the header records both', async () => { + const adapter = new MockAdapter([textResponse('ok')]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + + const reminder: Message = { role: 'user', content: [{ type: 'text', text: 'catalog' }] } + const trailer: Message = { role: 'user', content: [{ type: 'text', text: 'trailing note' }] } + ctx.on('agent/request-messages', async (_agent, _turn, _step, _messages, _context, next): Promise => { + const result = await next() + return { before: [...result.before, reminder], after: [...result.after, trailer] } + }) + + send(agent, 'hi') + await waitForIdle(ctx, agent) + + // The request carries before + derived history + after, in that order… + const request = adapter.requests[0]! + expect(request.messages).toEqual([ + reminder, + { role: 'user', content: [{ type: 'text', text: 'hi' }] }, + trailer, + ]) + // …the header event is their durable record… + const headerEvent = events(agent).find(e => e.type === 'request/header') + expect(headerEvent?.type === 'request/header' && headerEvent.data.header.messagePrefix).toEqual([reminder]) + expect(headerEvent?.type === 'request/header' && headerEvent.data.header.messageSuffix).toEqual([trailer]) + // …and they never become session history. + expect(agent.session.deriveMessages()).toEqual([ + { role: 'user', content: [{ type: 'text', text: 'hi' }] }, + { role: 'assistant', content: [{ type: 'text', text: 'ok' }] }, + ]) + }) + + it('contributions compose across listeners and see the read-only request facts', async () => { + const adapter = new MockAdapter([textResponse('ok')]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + + const seen: { system: string; boundaryRoles: string[]; sectionCount: number }[] = [] + ctx.on('agent/request-messages', async (_agent, _turn, _step, _messages, context, next): Promise => { + const result = await next() + seen.push({ + system: context.system, + boundaryRoles: context.boundaryMessages.map(m => m.role), + sectionCount: context.assembly.sections.length, + }) + return { before: [{ role: 'user', content: [{ type: 'text', text: 'first' }] }, ...result.before], after: result.after } + }) + ctx.on('agent/request-messages', async (_agent, _turn, _step, _messages, _context, next): Promise => { + const result = await next() + return { before: [...result.before, { role: 'user', content: [{ type: 'text', text: 'second' }] }], after: result.after } + }) + + send(agent, 'hi') + await waitForIdle(ctx, agent) + + // Registration order composes: the first listener runs last on the way + // out (waterfall), so its prepend lands first. + const texts = adapter.requests[0]!.messages.map(m => m.content[0]?.type === 'text' ? m.content[0].text : '') + expect(texts).toEqual(['first', 'second', 'hi']) + // The context carried the request facts: the rendered system prompt, the + // boundary snapshot (exactly the drained user prompt), and the assembly. + expect(seen).toHaveLength(1) + expect(seen[0]!.boundaryRoles).toEqual(['user']) + expect(typeof seen[0]!.system).toBe('string') + }) + + it('with no contributions the header omits both fields and the request is the bare derivation', async () => { + const adapter = new MockAdapter([textResponse('ok')]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + + // A listener that delegates without contributing — the canonical no-op. + ctx.on('agent/request-messages', async (_agent, _turn, _step, _messages, _context, next) => next()) + + send(agent, 'hi') + await waitForIdle(ctx, agent) + + const headerEvent = events(agent).find(e => e.type === 'request/header') + expect(headerEvent?.type === 'request/header' && 'messagePrefix' in headerEvent.data.header).toBe(false) + expect(headerEvent?.type === 'request/header' && 'messageSuffix' in headerEvent.data.header).toBe(false) + expect(adapter.requests[0]!.messages).toEqual([{ role: 'user', content: [{ type: 'text', text: 'hi' }] }]) + }) + + it('the frozen seed rejects in-place mutation — a contribution is a returned extension', async () => { + const adapter = new MockAdapter([textResponse('ok')]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + + let mutationError: unknown + ctx.on('agent/request-messages', async (_agent, _turn, _step, messages, _context, next): Promise => { + try { + messages.before.push({ role: 'user', content: [{ type: 'text', text: 'smuggled' }] }) + } catch (error: unknown) { + mutationError = error + } + return next() + }) + + send(agent, 'hi') + await waitForIdle(ctx, agent) + + expect(mutationError).toBeInstanceOf(TypeError) + expect(adapter.requests[0]!.messages).toEqual([{ role: 'user', content: [{ type: 'text', text: 'hi' }] }]) + }) + + it('a per-step contribution change is logged as a header delta, so every request stays reconstructable', async () => { + const adapter = new MockAdapter([ + toolCallResponse('c1', 'echo', { text: 'ping' }), + textResponse('done'), + ]) + const ctx = await harness(adapter) + ctx.tools.register(defineTool({ + name: 'echo', description: 'echo', parameters: { text: { type: 'string' } }, + async execute(args) { return [{ type: 'text', text: String(args.text) }] }, + })) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + + let step = 0 + ctx.on('agent/request-messages', async (_agent, _turn, _step, _messages, _context, next): Promise => { + const result = await next() + step += 1 + return { before: [...result.before, { role: 'user', content: [{ type: 'text', text: `reminder v${step}` }] }], after: result.after } + }) + + send(agent, 'go') + await waitForIdle(ctx, agent) + + expect(adapter.requests[0]!.messages[0]).toEqual({ role: 'user', content: [{ type: 'text', text: 'reminder v1' }] }) + expect(adapter.requests[1]!.messages[0]).toEqual({ role: 'user', content: [{ type: 'text', text: 'reminder v2' }] }) + // Step 2's changed prefix rides a request/header-delta whose fold matches + // what the second request actually sent. + const delta = events(agent).find(e => e.type === 'request/header-delta') + expect(delta?.type === 'request/header-delta' && delta.data.messagePrefix).toEqual([{ role: 'user', content: [{ type: 'text', text: 'reminder v2' }] }]) + expect(foldRequestHeader(agent.session.events)?.messagePrefix).toEqual([{ role: 'user', content: [{ type: 'text', text: 'reminder v2' }] }]) + }) +}) + describe('agent/turn-continuation (ContinuationDecision)', () => { it('a continue decision with a reason records next-step steering in the same turn', async () => { const adapter = new MockAdapter([textResponse('step 1 no tools'), textResponse('step 2')]) diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index 9e15356ed0..64a5516761 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -45,6 +45,7 @@ Turn and step boundaries are NOT mirrored as `agent/*` emits: a consumer that ne - `agent/prompt-submit` — decide what happens to one drained queued message before it becomes a `user/message`: `PromptDecision` = `allow` (optionally rewriting the prompt `content` or attaching `additionalContext`) or `block` (drop it; a batch whose every prompt is blocked opens a zero-step turn that ends `rejected`). Maps onto Claude Code's `UserPromptSubmit`. - `agent/pre-step` (serial) — mutate the session surface before the step opens and history is derived (compaction). Fires after `turn/start` and before `step/start`, so a listener's appended events land outside the step. - `agent/request` — shape the call config before the model call: a frozen `LlmCallConfig` seed in, a replacement out (model switching, sampling overrides). Content is not shapeable here — every request is a pure function of the session log ([reconstructability RFC](../../../docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)); the loop logs whatever config the request actually uses as a `request/header*` event +- `agent/request-messages` — contribute request-ONLY messages around the derived history: a frozen empty `RequestMessages` seed in, an extension of `await next()` out (`before` messages precede the boundary snapshot in the request, `after` messages follow it). For per-request advisory context the model must see now but that must not become durable history; the loop records the contributions on the request's `request/header*` event (`EpochHeader.messagePrefix`/`messageSuffix`), so `deriveMessages()` stays untouched and the request stays reconstructable. Cost model: contributions ride the request's uncached tail and are re-paid at full price on every request they appear in — put session-frozen content in `before` (cacheable prefix; a mid-session change busts the cache for everything after it), route low-frequency change notices through `agent.inject()` instead (paid once, prefix-cached thereafter), and reserve `after` for small, frequently refreshed state snapshots - `agent/step-result` — post-process the assembled assistant message before tool dispatch (validates what the log records) - `agent/turn-continuation` — override the continue/stop decision via `ContinuationDecision` = `{action:'stop'}` or `{action:'continue', reason?}` (a `continue` `reason` is recorded as next-step steering in the same turn — the typed `/goal` pattern). Force-continue `/loop`, force-stop budget guard. diff --git a/packages/core/agent/src/types.ts b/packages/core/agent/src/types.ts index 1fd6a57867..9d4fa4f10c 100644 --- a/packages/core/agent/src/types.ts +++ b/packages/core/agent/src/types.ts @@ -17,7 +17,8 @@ * consumer that wants the live transcript subscribes here. * - **`agent/*`** (this module) — the LIVE runtime surface. Always carries the * live `Agent`. Two shapes: INTERCEPTION seams (the `agent/prompt-submit`/ - * `agent/request`/`agent/step-result`/`agent/turn-continuation` waterfalls and + * `agent/request`/`agent/request-messages`/`agent/step-result`/ + * `agent/turn-continuation` waterfalls and * the serial `agent/pre-step`) that mutate/veto, and TRANSIENT emits * (`agent/status`, `agent/error`, `agent/created`/ * `agent/disposed`, `agent/queued`, `agent/session-start`) @@ -45,7 +46,7 @@ import type { Branded } from '@deepseek-ai/dsh-brand' import type { ContentBlock, LlmCallConfig, Message, MessageSource } from '@deepseek-ai/dsh-llm' -import type {} from '@deepseek-ai/dsh-system-prompt' +import type { PromptAssembly } from '@deepseek-ai/dsh-system-prompt' /** Identifies one live agent in the registry. */ export type AgentId = Branded<'AgentId'> @@ -138,6 +139,49 @@ export type ContinuationDecision = | { action: 'stop' } | { action: 'continue'; reason?: HookContext } +/** + * Request-ONLY messages an `agent/request-messages` waterfall listener + * contributes around the derived history of ONE LLM request: `before` messages + * precede the derived history in `GenerateOptions.messages`, `after` messages + * follow it. They are NOT session events — nothing here enters the session log + * as durable history, `Session.deriveMessages()` never returns them, and the + * next step recomputes them from scratch. The loop records the non-empty + * arrays on the request's `request/header*` event (`EpochHeader.messagePrefix` + * / `messageSuffix`), so the request stays reconstructable from the log (the + * reconstructability RFC). For content that must become durable conversation + * history, use the log channels instead: `agent.inject()`, steering, or + * prompt-submit `additionalContext`. + */ +export interface RequestMessages { + /** Messages placed before the derived history in the request. */ + before: Message[] + /** Messages placed after the derived history in the request. */ + after: Message[] +} + +/** + * Read-only facts about the request an `agent/request-messages` listener is + * contributing to. Everything here is already fixed when the seam fires: the + * step is open, the boundary snapshot is taken, and the system prompt is + * assembled — a listener uses these to DECIDE what to contribute (e.g. render + * a workspace-dependent reminder, or skip one already present in history), + * never to mutate them. + */ +export interface RequestMessagesContext { + /** The rendered system prompt this request will carry. */ + system: string + /** The prompt assembly the system prompt was rendered from (sections + tools). */ + assembly: PromptAssembly + /** + * The boundary snapshot: the derived history this request will carry between + * `before` and `after`. A frozen snapshot — treat it as read-only; content + * for the NEXT request flows through the log channels. + */ + boundaryMessages: readonly Message[] + /** Aborts in-flight listener work when the step is torn down. */ + signal: AbortSignal +} + /** * Why an agent's session lifecycle began, carried by `agent/session-start`. A * bridge keys its SessionStart hook's matcher on this (Claude Code's @@ -351,8 +395,9 @@ declare module 'cordis' { * ALL a listener shapes here: every request is a pure function of the * session log (the reconstructability RFC), so model-visible content * flows through the log channels — `inject()`, steering, prompt-submit - * `additionalContext`, prompt sections via `system-prompt/assemble` — - * never through request mutation, and the loop records whatever config + * `additionalContext`, prompt sections via `system-prompt/assemble`, or + * header-logged request-only messages via {@link agent/request-messages} + * — never through request mutation, and the loop records whatever config * the request actually uses as a `request/header*` event before dispatch. * The step's messages are already snapshotted when this fires (the * `step/start` boundary): an `inject()` from a listener here lands in the @@ -367,6 +412,47 @@ declare module 'cordis' { * @mode waterfall */ 'agent/request'(agent: Agent, turn: number, step: number, config: LlmCallConfig, next: () => Promise): Promise + /** + * Waterfall: contribute request-ONLY messages around the derived history — + * a {@link RequestMessages} whose `before` messages precede the boundary + * snapshot in `GenerateOptions.messages` and whose `after` messages follow + * it. Fires once per step, inside the open step, after the + * {@link agent/request} config waterfall and before the loop logs the + * request header. This is the seam for per-request advisory context the + * model must see NOW but that must NOT become durable history (a skills + * catalog, an environment reminder): contributions are recorded on the + * request's `request/header*` event (`EpochHeader.messagePrefix` / + * `messageSuffix`) — never as session messages — so + * `Session.deriveMessages()` stays untouched and the request remains + * reconstructable from the log. + * + * The seed is frozen and empty; a contributing listener returns a NEW + * {@link RequestMessages} extending `await next()` (spread its arrays — + * never mutate them), so contributions compose across plugins in + * registration order. The boundary snapshot is already taken when this + * fires: a `session.append`/`inject()` from a listener here lands in the + * log but joins the NEXT request — contribute through the returned value, + * not the session. Call `next()` to delegate, or return a + * {@link RequestMessages} without it to short-circuit. + * + * Pick the channel by change frequency (the cost model): a contribution + * rides the request's uncached tail, re-tokenized at full price on EVERY + * request it appears in — cheap only while small. Session-FROZEN content + * belongs in `before`, where it extends the cacheable prefix at zero + * marginal cost (but changing it mid-session invalidates the provider + * cache for the entire history after it). A LOW-FREQUENCY change notice + * belongs in durable history via `agent.inject()` — appended once, + * prefix-cached thereafter. Reserve `after` for small, frequently + * refreshed state snapshots, where a durable chain of stale copies would + * bloat the log and mislead the model. + * @param agent - the agent making the model call. + * @param turn - the open turn number. + * @param step - the step whose request this is. + * @param messages - the frozen empty seed; return an extended replacement to contribute. + * @param context - read-only request facts ({@link RequestMessagesContext}). + * @mode waterfall + */ + 'agent/request-messages'(agent: Agent, turn: number, step: number, messages: RequestMessages, context: RequestMessagesContext, next: () => Promise): Promise /** * Waterfall: post-process the assembled assistant {@link Message} before * tool dispatch (validation, content rewriting, …). diff --git a/packages/core/session/README.md b/packages/core/session/README.md index 0ae5bbf39e..7fa16d0f3d 100644 --- a/packages/core/session/README.md +++ b/packages/core/session/README.md @@ -51,7 +51,7 @@ Plain class (not a Cordis Service). Create via `ctx.sessions.create()`. ### Request-header reconstruction (`request-header.ts`) -The `request/header` (full `EpochHeader` snapshot with a `RequestHeaderReason`) and `request/header-delta` (system line-trim / name-keyed tools delta / whole config) events make the request envelope logged session state, so every conversation request is a pure function of the log. The pure trio reconstructs it: `foldRequestHeader(events)` folds a log (or any prefix) into the header in force; `diffHeader(prev, next)` encodes a change (undefined when equal); `applyHeaderDelta(prev, delta)` replays one. Writer contract: every logged delta is round-trip-verified (`apply(prev, delta)` deep-equals the new header) with a `'fallback'` snapshot when the encoding cannot express the change (a pure tool reordering), so folding never needs error recovery on a well-formed log. `canonicalHeader` pins the one representation of absence (empty system/tools ≡ absent fields). +The `request/header` (full `EpochHeader` snapshot with a `RequestHeaderReason`) and `request/header-delta` (system line-trim / name-keyed tools delta / whole config / whole request-only message arrays) events make the request envelope logged session state, so every conversation request is a pure function of the log. The pure trio reconstructs it: `foldRequestHeader(events)` folds a log (or any prefix) into the header in force; `diffHeader(prev, next)` encodes a change (undefined when equal); `applyHeaderDelta(prev, delta)` replays one. Writer contract: every logged delta is round-trip-verified (`apply(prev, delta)` deep-equals the new header) with a `'fallback'` snapshot when the encoding cannot express the change (a pure tool reordering), so folding never needs error recovery on a well-formed log. `canonicalHeader` pins the one representation of absence (empty system/tools/messagePrefix/messageSuffix ≡ absent fields; a delta's EMPTY message array encodes the transition back to absence). `EpochHeader.messagePrefix`/`messageSuffix` are the durable record of the `agent/request-messages` waterfall's request-only contributions — the request is `messagePrefix + derived history + messageSuffix`, and `deriveMessages()` never returns them. ### Session event vocabulary (`types.ts`) diff --git a/packages/core/session/src/request-header.ts b/packages/core/session/src/request-header.ts index d83da16197..a891237425 100644 --- a/packages/core/session/src/request-header.ts +++ b/packages/core/session/src/request-header.ts @@ -13,14 +13,24 @@ */ import { callConfigEquals } from '@deepseek-ai/dsh-llm' -import type { LlmCallConfig, ToolSchema } from '@deepseek-ai/dsh-llm' +import type { LlmCallConfig, Message, ToolSchema } from '@deepseek-ai/dsh-llm' import type { EpochHeader, SessionEvent, SystemDelta, ToolsDelta } from './types.ts' +/** The `request/header-delta` payload shape: each present field amends the folded header. */ +type HeaderDelta = { + system?: SystemDelta + tools?: ToolsDelta + config?: LlmCallConfig + messagePrefix?: Message[] + messageSuffix?: Message[] +} + /** - * Normalize a header to canonical form: an empty system prompt and an empty - * tool list become ABSENT fields, matching how requests are built (both - * request-build spreads skip empty values). Diff, fold, and comparison all - * operate on canonical headers, so "no system prompt" has exactly one + * Normalize a header to canonical form: an empty system prompt, an empty + * tool list, and empty request-only message arrays become ABSENT fields, + * matching how requests are built (the request-build spreads skip empty + * values). Diff, fold, and comparison all operate on canonical headers, so + * "no system prompt" (and "no request-only messages") has exactly one * representation. * @param header - the header to normalize (not mutated). * @returns the canonical header. @@ -30,6 +40,8 @@ export function canonicalHeader(header: EpochHeader): EpochHeader { config: header.config, ...header.system !== undefined && header.system.length > 0 ? { system: header.system } : {}, ...header.tools !== undefined && header.tools.length > 0 ? { tools: header.tools } : {}, + ...header.messagePrefix !== undefined && header.messagePrefix.length > 0 ? { messagePrefix: header.messagePrefix } : {}, + ...header.messageSuffix !== undefined && header.messageSuffix.length > 0 ? { messageSuffix: header.messageSuffix } : {}, } } @@ -109,37 +121,47 @@ function applyTools(prev: readonly ToolSchema[], delta: ToolsDelta): ToolSchema[ * writer's round-trip guard runs (`applyHeaderDelta(prev, delta)` must equal * the intended header) and the loop runs to skip logging an unchanged header. * Tools compare per-schema IN ORDER (canonical JSON), so a pure reordering is - * correctly unequal. + * correctly unequal; request-only message arrays compare as canonical JSON + * (both sides come from the same build path, so key order matches when the + * values do). * @param a - one canonical header. * @param b - the other. - * @returns whether config, system, and tools (in order) all match. + * @returns whether config, system, tools (in order), and request-only messages all match. */ export function headerEquals(a: EpochHeader, b: EpochHeader): boolean { if (!callConfigEquals(a.config, b.config) || a.system !== b.system) return false + if (!sameMessages(a.messagePrefix, b.messagePrefix) || !sameMessages(a.messageSuffix, b.messageSuffix)) return false const at = a.tools ?? [] const bt = b.tools ?? [] return at.length === bt.length && at.every((tool, i) => sameSchema(tool, bt[i] as ToolSchema)) } +/** Canonical JSON equality over request-only message arrays; absence equals the empty array. */ +function sameMessages(a: readonly Message[] | undefined, b: readonly Message[] | undefined): boolean { + return JSON.stringify(a ?? []) === JSON.stringify(b ?? []) +} + /** * Compute the `request/header-delta` payload between two canonical headers, * or undefined when they are equal. The caller MUST round-trip the result * ({@link applyHeaderDelta} on `prev` deep-equals `next`) before logging it — * the encoding cannot express every change (a pure tool reordering) — and * fall back to a full `request/header` snapshot when the check fails. + * Request-only messages are replaced whole (small advisory content, not worth + * diffing); an empty replacement array encodes the transition to "none". * @param prev - the folded header the log currently implies. * @param next - the header the next request will actually use. * @returns the delta payload, or undefined when nothing changed. */ -export function diffHeader( - prev: EpochHeader, next: EpochHeader, -): { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig } | undefined { - const delta: { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig } = {} +export function diffHeader(prev: EpochHeader, next: EpochHeader): HeaderDelta | undefined { + const delta: HeaderDelta = {} if (prev.system !== next.system) delta.system = diffSystem(prev.system, next.system) const prevTools = prev.tools ?? [] const nextTools = next.tools ?? [] if (JSON.stringify(prevTools) !== JSON.stringify(nextTools)) delta.tools = diffTools(prevTools, nextTools) if (!callConfigEquals(prev.config, next.config)) delta.config = next.config + if (!sameMessages(prev.messagePrefix, next.messagePrefix)) delta.messagePrefix = next.messagePrefix ?? [] + if (!sameMessages(prev.messageSuffix, next.messageSuffix)) delta.messageSuffix = next.messageSuffix ?? [] return Object.keys(delta).length > 0 ? delta : undefined } @@ -151,15 +173,17 @@ export function diffHeader( * @param delta - the logged delta payload. * @returns the canonical header after the delta. */ -export function applyHeaderDelta( - prev: EpochHeader, delta: { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig }, -): EpochHeader { +export function applyHeaderDelta(prev: EpochHeader, delta: HeaderDelta): EpochHeader { const system = delta.system !== undefined ? applySystem(prev.system, delta.system) : prev.system const tools = delta.tools !== undefined ? applyTools(prev.tools ?? [], delta.tools) : prev.tools + const messagePrefix = delta.messagePrefix ?? prev.messagePrefix + const messageSuffix = delta.messageSuffix ?? prev.messageSuffix return canonicalHeader({ config: delta.config ?? prev.config, ...system !== undefined ? { system } : {}, ...tools !== undefined ? { tools } : {}, + ...messagePrefix !== undefined ? { messagePrefix } : {}, + ...messageSuffix !== undefined ? { messageSuffix } : {}, }) } diff --git a/packages/core/session/src/types.ts b/packages/core/session/src/types.ts index ec227e9884..32a10c7bca 100644 --- a/packages/core/session/src/types.ts +++ b/packages/core/session/src/types.ts @@ -1,5 +1,5 @@ import type { Branded } from '@deepseek-ai/dsh-brand' -import type { CallId, ContentBlock, LlmCallConfig, MessageSource, StreamChunk, TokenUsage, ToolSchema } from '@deepseek-ai/dsh-llm' +import type { CallId, ContentBlock, LlmCallConfig, Message, MessageSource, StreamChunk, TokenUsage, ToolSchema } from '@deepseek-ai/dsh-llm' /** Identifies one session in the store (and its persistence artifacts). */ export type SessionId = Branded<'SessionId'> @@ -177,14 +177,16 @@ export interface TodoItem { } /** - * The request header: everything about an LLM request besides its message - * content — the call configuration plus the rendered system prompt and tool - * schemas. Logged session state (the reconstructability RFC): a + * The request header: everything about an LLM request besides its derived + * message history — the call configuration plus the rendered system prompt, + * tool schemas, and any request-only messages. Logged session state (the + * reconstructability RFC): a * {@link SessionEventMap} `request/header` snapshot installs one, a * `request/header-delta` amends it, and folding those events over the log * (`foldRequestHeader`) reconstructs the header any request was built under. - * Canonical form: an empty system prompt and an empty tool list are ABSENT - * fields, matching how requests are built. + * Canonical form: an empty system prompt, an empty tool list, and empty + * request-only message arrays are ABSENT fields, matching how requests are + * built. */ export interface EpochHeader { /** The conversation's call configuration (model + sampling scalars). */ @@ -193,6 +195,15 @@ export interface EpochHeader { system?: string /** Assembled tool schemas; absent for a tool-less request. */ tools?: ToolSchema[] + /** + * Request-only messages sent BEFORE the derived history (the + * `agent/request-messages` waterfall's `before` contributions). Not session + * history — `deriveMessages()` never returns them — so the header is their + * only durable record; absent when the request carried none. + */ + messagePrefix?: Message[] + /** Request-only messages sent AFTER the derived history; absent when none. */ + messageSuffix?: Message[] } /** @@ -350,15 +361,19 @@ export interface SessionEventMap { 'request/header': { header: EpochHeader; reason: RequestHeaderReason } /** * Amendment to the folded {@link EpochHeader}: at least one of a - * {@link SystemDelta}, a {@link ToolsDelta}, or a whole replacement - * {@link LlmCallConfig} (four scalars — not worth diffing). Appended by the + * {@link SystemDelta}, a {@link ToolsDelta}, a whole replacement + * {@link LlmCallConfig} (four scalars — not worth diffing), or a whole + * replacement request-only message array (`messagePrefix`/`messageSuffix` — + * small advisory content, replaced whole; an EMPTY array encodes the + * transition to "none", mirroring the canonical form's absent field). + * Appended by the * loop inside the step, before dispatch, when the header for this request * differs from the fold of the log so far; the writer verifies * `applyHeaderDelta(previous, delta)` reproduces the new header exactly and * falls back to a `'fallback'` `request/header` snapshot when it cannot, so * a logged delta ALWAYS round-trips. NOT a {@link SurfaceEventType}. */ - 'request/header-delta': { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig } + 'request/header-delta': { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig; messagePrefix?: Message[]; messageSuffix?: Message[] } } export type SessionEventType = keyof SessionEventMap diff --git a/packages/core/session/tests/request-header.spec.ts b/packages/core/session/tests/request-header.spec.ts index c2368c46fe..9db46598ac 100644 --- a/packages/core/session/tests/request-header.spec.ts +++ b/packages/core/session/tests/request-header.spec.ts @@ -8,9 +8,9 @@ */ import { describe, expect, it } from 'vitest' -import { Session, SessionId, applyHeaderDelta, canonicalHeader, diffHeader, foldRequestHeader } from '@deepseek-ai/dsh-session' +import { Session, SessionId, applyHeaderDelta, canonicalHeader, diffHeader, foldRequestHeader, headerEquals } from '@deepseek-ai/dsh-session' import type { EpochHeader, SessionEvent } from '@deepseek-ai/dsh-session' -import type { ToolSchema } from '@deepseek-ai/dsh-llm' +import type { Message, ToolSchema } from '@deepseek-ai/dsh-llm' const CONFIG = { model: 'm' } @@ -18,6 +18,10 @@ function tool(name: string, description = 'd'): ToolSchema { return { name, description, parameters: { type: 'object' } } } +function msg(text: string): Message { + return { role: 'user', content: [{ type: 'text', text }] } +} + /** Round-trip helper: diff must reproduce `next` from `prev` exactly. */ function roundTrip(prev: EpochHeader, next: EpochHeader): ReturnType { const delta = diffHeader(prev, next) @@ -103,6 +107,49 @@ describe('diffHeader / applyHeaderDelta', () => { }) }) +describe('request-only messages (messagePrefix / messageSuffix)', () => { + it('canonicalHeader normalizes empty arrays to absent fields', () => { + expect(canonicalHeader({ config: CONFIG, messagePrefix: [], messageSuffix: [] })).toEqual({ config: CONFIG }) + const full = canonicalHeader({ config: CONFIG, messagePrefix: [msg('p')], messageSuffix: [msg('s')] }) + expect(full.messagePrefix).toEqual([msg('p')]) + expect(full.messageSuffix).toEqual([msg('s')]) + }) + + it('headerEquals treats absence and empty as one representation, content differences as unequal', () => { + expect(headerEquals(canonicalHeader({ config: CONFIG }), { config: CONFIG, messagePrefix: [] })).toBe(true) + expect(headerEquals({ config: CONFIG, messagePrefix: [msg('a')] }, { config: CONFIG, messagePrefix: [msg('b')] })).toBe(false) + expect(headerEquals({ config: CONFIG, messageSuffix: [msg('a')] }, { config: CONFIG })).toBe(false) + }) + + it('replaces a changed prefix whole and leaves an untouched suffix alone', () => { + const prev = canonicalHeader({ config: CONFIG, messagePrefix: [msg('old')], messageSuffix: [msg('keep')] }) + const next = canonicalHeader({ config: CONFIG, messagePrefix: [msg('new'), msg('more')], messageSuffix: [msg('keep')] }) + const delta = roundTrip(prev, next) + expect(delta).toEqual({ messagePrefix: [msg('new'), msg('more')] }) + }) + + it('round-trips framing gained from a bare header and lost back to one (empty array encodes absence)', () => { + const none = canonicalHeader({ config: CONFIG }) + const some = canonicalHeader({ config: CONFIG, messagePrefix: [msg('p')], messageSuffix: [msg('s')] }) + const gained = roundTrip(none, some) + expect(gained).toEqual({ messagePrefix: [msg('p')], messageSuffix: [msg('s')] }) + const lost = roundTrip(some, none) + expect(lost).toEqual({ messagePrefix: [], messageSuffix: [] }) + }) + + it('folds framing deltas over the log like any other header amendment', () => { + const session = new Session(SessionId('fold-framing')) + session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) + const first = canonicalHeader({ config: CONFIG, messagePrefix: [msg('catalog v1')] }) + session.append('request/header', { header: first, reason: 'initial' }) + const second = canonicalHeader({ config: CONFIG, messagePrefix: [msg('catalog v2')] }) + session.append('request/header-delta', diffHeader(first, second)!) + expect(foldRequestHeader(session.events)).toEqual(second) + session.append('request/header-delta', diffHeader(second, canonicalHeader({ config: CONFIG }))!) + expect(foldRequestHeader(session.events)).toEqual({ config: CONFIG }) + }) +}) + describe('foldRequestHeader', () => { function headerEvents(session: Session): readonly SessionEvent[] { return session.events diff --git a/packages/llm/llm/src/types.ts b/packages/llm/llm/src/types.ts index 7163ddc1d9..f6212e7870 100644 --- a/packages/llm/llm/src/types.ts +++ b/packages/llm/llm/src/types.ts @@ -168,6 +168,12 @@ export interface ToolSchema { /** A single model request, fully assembled. */ export interface GenerateOptions { model: string + /** + * Ordered conversation messages, exactly as the provider sees them (after + * the `system` slot). A loop-built request assembles them as + * `EpochHeader.messagePrefix` + the derived history + `messageSuffix` + * (dsh-agent-loop); a hand-built one-shot passes any list. + */ messages: Message[] /** System prompt text (adapters map to the provider's system slot). */ system?: string diff --git a/packages/support/invariants/src/index.ts b/packages/support/invariants/src/index.ts index f35fbafa1d..024838ea4c 100644 --- a/packages/support/invariants/src/index.ts +++ b/packages/support/invariants/src/index.ts @@ -367,8 +367,11 @@ export function apply(ctx: Context, config: Config = {}): void { // hand-built one-shot (compaction summarize) is unfrozen and skipped — must // be EXACTLY what the session log reconstructs: // - // - messages: the derivation over the log prefix strictly before the - // in-flight step's `step/start` (the reconstruction boundary). Compared + // - messages: the folded header's request-only messages (messagePrefix / + // messageSuffix — the `agent/request-messages` contributions, logged on + // the header because no session event carries them) framing the + // derivation over the log prefix strictly before the in-flight step's + // `step/start` (the reconstruction boundary). The derivation is compared // against a FRESH Session built over that prefix — the same projection // code with zero shared state, so the live cache under test cannot vouch // for itself. Boundary-correct by construction: content appended after @@ -408,18 +411,22 @@ export function apply(ctx: Context, config: Config = {}): void { if (boundary === -1) { throw new InvariantError('a loop-built request with no step/start in its session log') } - const rebuilt = new Session(SessionId(`${String(session.id)}-invariant-rebuild`), structuredClone(events.slice(0, boundary))) - // JSON equality is sound here: both sides are structuredClones produced by - // the same projection code path, so key insertion order matches when the - // values do. - if (JSON.stringify(options.messages) !== JSON.stringify(rebuilt.deriveMessages())) { - throw new InvariantError(`llm request for session "${String(session.id)}" diverges from the boundary derivation (log-reconstruction desync)`) - } - const header = foldRequestHeader(events) if (header === undefined) { throw new InvariantError('a loop-built request with no request/header event in its session log') } + const rebuilt = new Session(SessionId(`${String(session.id)}-invariant-rebuild`), structuredClone(events.slice(0, boundary))) + // The reconstruction equation: the folded header's request-only messages + // frame the boundary derivation (prefix + derived + suffix) — the loop + // logs the header event BEFORE dispatch, so the fold already covers this + // request's contributions. JSON equality is sound here: both sides are + // structuredClones produced by the same projection/build code path, so key + // insertion order matches when the values do. + const expected = [...header.messagePrefix ?? [], ...rebuilt.deriveMessages(), ...header.messageSuffix ?? []] + if (JSON.stringify(options.messages) !== JSON.stringify(expected)) { + throw new InvariantError(`llm request for session "${String(session.id)}" diverges from the boundary derivation (log-reconstruction desync)`) + } + const headerMatches = options.model === header.config.model && options.system === header.system && options.temperature === header.config.temperature diff --git a/packages/support/invariants/tests/invariants.spec.ts b/packages/support/invariants/tests/invariants.spec.ts index 489cfb9817..cccd6a54d4 100644 --- a/packages/support/invariants/tests/invariants.spec.ts +++ b/packages/support/invariants/tests/invariants.spec.ts @@ -707,6 +707,22 @@ describe('request-reconstruction cross-check (llm/stream)', () => { expect(() => { dispatch(ctx, options) }).not.toThrow() }) + it('expects the folded header\'s request-only messages to frame the derivation (prefix + derived + suffix)', async () => { + const { ctx, session, boundary } = await requestSetup() + const prefix = { role: 'user' as const, content: [{ type: 'text' as const, text: 'catalog' }] } + const suffix = { role: 'user' as const, content: [{ type: 'text' as const, text: 'trailing note' }] } + session.append('request/header-delta', { messagePrefix: [prefix], messageSuffix: [suffix] }) + // The framed request matches the fold… + const framed = Object.freeze({ model: 'm', messages: Object.freeze([prefix, ...boundary, suffix]), sessionId: session.id }) + expect(() => { dispatch(ctx, framed) }).not.toThrow() + // …a request that DROPPED the logged framing diverges… + const bare = Object.freeze({ model: 'm', messages: Object.freeze([...boundary]), sessionId: session.id }) + expect(() => { dispatch(ctx, bare) }).toThrow(/diverges from the boundary derivation/) + // …and so does one that misplaced it (suffix sent as a prefix). + const misplaced = Object.freeze({ model: 'm', messages: Object.freeze([suffix, prefix, ...boundary]), sessionId: session.id }) + expect(() => { dispatch(ctx, misplaced) }).toThrow(/diverges from the boundary derivation/) + }) + it('rejects a frozen request whose messages diverge from the boundary derivation', async () => { const { ctx, session, boundary } = await requestSetup() const messages = [...boundary, { role: 'user', content: [{ type: 'text', text: 'phantom' }] }] diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index b5c648527e..7291bee4ca 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -15,6 +15,8 @@ { "doc": "docs/core-data-structures/core.md", "symbol": "PromptDecision", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "ContinuationDecision", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "SessionStartSource", "source": "packages/core/agent/src/types.ts" }, + { "doc": "docs/core-data-structures/core.md", "symbol": "RequestMessages", "source": "packages/core/agent/src/types.ts" }, + { "doc": "docs/core-data-structures/core.md", "symbol": "RequestMessagesContext", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "StreamChunk", "source": "packages/llm/llm/src/types.ts" }, { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "TokenUsage", "source": "packages/llm/llm/src/types.ts" }, From f3d26ed04912aef6a65f40fe48f4bc790ea558fa Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Tue, 7 Jul 2026 20:55:13 +0800 Subject: [PATCH 044/232] fix request-messages boundary immutability --- packages/core/agent-loop/src/loop.ts | 3 ++- .../agent-loop/tests/interception.spec.ts | 23 +++++++++++++++++++ 2 files changed, 25 insertions(+), 1 deletion(-) diff --git a/packages/core/agent-loop/src/loop.ts b/packages/core/agent-loop/src/loop.ts index 600bb211a1..0ca7a06645 100644 --- a/packages/core/agent-loop/src/loop.ts +++ b/packages/core/agent-loop/src/loop.ts @@ -727,9 +727,10 @@ async function runStep( // so a listener's session append lands past the boundary and joins the NEXT // request — the same window rule as the `agent/request` waterfall. const emptyRequestMessages: RequestMessages = deepFreeze({ before: [], after: [] }) + const requestMessagesBoundary = deepFreeze([...boundaryMessages]) const requestMessages = await ctx.waterfall( 'agent/request-messages', agent, turn, step, emptyRequestMessages, - { system, assembly, boundaryMessages, signal }, + { system, assembly, boundaryMessages: requestMessagesBoundary, signal }, () => Promise.resolve(emptyRequestMessages), ) diff --git a/packages/core/agent-loop/tests/interception.spec.ts b/packages/core/agent-loop/tests/interception.spec.ts index 36b9100b85..14db911a7e 100644 --- a/packages/core/agent-loop/tests/interception.spec.ts +++ b/packages/core/agent-loop/tests/interception.spec.ts @@ -418,6 +418,29 @@ describe('agent/request-messages (RequestMessages)', () => { expect(adapter.requests[0]!.messages).toEqual([{ role: 'user', content: [{ type: 'text', text: 'hi' }] }]) }) + it('the read-only boundary context rejects in-place mutation before the request is built', async () => { + const adapter = new MockAdapter([textResponse('ok')]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + + let mutationError: unknown + ctx.on('agent/request-messages', async (_agent, _turn, _step, _messages, context, next): Promise => { + try { + const mutableBoundary = context.boundaryMessages as Message[] + mutableBoundary.push({ role: 'user', content: [{ type: 'text', text: 'smuggled' }] }) + } catch (error: unknown) { + mutationError = error + } + return next() + }) + + send(agent, 'hi') + await waitForIdle(ctx, agent) + + expect(mutationError).toBeInstanceOf(TypeError) + expect(adapter.requests[0]!.messages).toEqual([{ role: 'user', content: [{ type: 'text', text: 'hi' }] }]) + }) + it('a per-step contribution change is logged as a header delta, so every request stays reconstructable', async () => { const adapter = new MockAdapter([ toolCallResponse('c1', 'echo', { text: 'ping' }), From 1f5db6e0b0ce3b7ee055a6712167ee474910b1e7 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Tue, 7 Jul 2026 22:39:05 +0800 Subject: [PATCH 045/232] docs: satisfy the export-JSDoc gate across the workflow packages Master's verify-export-jsdoc landed mid-stack; complete the six missing @param/@returns on the workflow trio's public surface (and the services catalog they regenerate into). --- docs/cordis-catalog/services.md | 2 +- packages/workflow/workflow-vm/src/runtime.ts | 4 ++++ packages/workflow/workflow/src/index.ts | 6 +++++- packages/workflow/workflow/src/types.ts | 6 +++++- 4 files changed, 15 insertions(+), 3 deletions(-) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index f292045c69..3e991726d4 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -243,7 +243,7 @@ Semantics every implementation must honor: abstract start(request: WorkflowStartRequest): WorkflowRun ``` -Source: [`packages/workflow/workflow/src/index.ts:198`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:202`](../../packages/workflow/workflow/src/index.ts) ## Inherited `ctx` members (cordis core + loader/hmr/timer) diff --git a/packages/workflow/workflow-vm/src/runtime.ts b/packages/workflow/workflow-vm/src/runtime.ts index f1901ffaf7..0938b7f2c9 100644 --- a/packages/workflow/workflow-vm/src/runtime.ts +++ b/packages/workflow/workflow-vm/src/runtime.ts @@ -225,6 +225,8 @@ export class WorkflowExecution { * `disposeGraceMs` (parked on a promise no hook owns) is abandoned so * `result` settles regardless (see {@link abandoned}). Idempotent; the * first reason wins. + * @param reason - human-readable cause, carried on the CANCELLED error and + * into child `run.cancel()` calls (default `'workflow cancelled'`). */ cancel(reason?: string): void { if (this.cancelReason !== undefined) return @@ -244,6 +246,8 @@ export class WorkflowExecution { * cancellation (or outlived its post-cancel grace and was abandoned — see * {@link abandoned}). After settlement, any stray children a script fired * without awaiting are aborted (their `agent()` wrappers dispose them). + * @returns the settled outcome — this promise NEVER rejects (the seam's + * `result`-never-rejects contract); every failure maps to a variant. */ async drive(): Promise { try { diff --git a/packages/workflow/workflow/src/index.ts b/packages/workflow/workflow/src/index.ts index 31b9eed038..288f6af952 100644 --- a/packages/workflow/workflow/src/index.ts +++ b/packages/workflow/workflow/src/index.ts @@ -168,7 +168,11 @@ export class WorkflowError extends HarnessError { } } -/** Whether combinators must re-throw `error` instead of mapping the item to `null`. */ +/** + * Whether combinators must re-throw `error` instead of mapping the item to `null`. + * @param error - any thrown value; fatality is host `instanceof` (unforgeable from a script realm). + * @returns true iff `error` is a {@link WorkflowError} whose `fatal` flag is set. + */ export function isFatalWorkflowError(error: unknown): boolean { return error instanceof WorkflowError && error.fatal } diff --git a/packages/workflow/workflow/src/types.ts b/packages/workflow/workflow/src/types.ts index 01e5d08bf0..767fb8257b 100644 --- a/packages/workflow/workflow/src/types.ts +++ b/packages/workflow/workflow/src/types.ts @@ -12,7 +12,11 @@ import type { Agent, AgentId } from '@deepseek-ai/dsh-agent' /** Identifies one workflow run. */ export type WorkflowRunId = Branded<'WorkflowRunId'> -/** Brand a string as a {@link WorkflowRunId}. */ +/** + * Brand a string as a {@link WorkflowRunId}. + * @param id - the raw id string (the engine mints UUIDs; tests may pass fixtures). + * @returns the same string, branded. + */ export function WorkflowRunId(id: string): WorkflowRunId { return id as WorkflowRunId } From 737e1f7c0ac824bbd9aa61f6d856497767a4e36c Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Tue, 7 Jul 2026 23:22:05 +0800 Subject: [PATCH 046/232] chore: absorb master's explicit tool order into the stack MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The tool-order feature canonicalizes the model-facing list (alphabetical absent a configured toolOrder), so the header-pinning text-turn fixture is re-recorded on the stacked tree — every other fixture stores the header as scrubbed tokens and needed nothing. AGENTS.md condensed back under its ceiling after the merge union. --- AGENTS.md | 4 +- .../tests/snapshots/text-turn/session.jsonl | 69 +++++++++---------- .../snapshots/text-turn/stdout.golden.jsonl | 9 +-- 3 files changed, 38 insertions(+), 44 deletions(-) diff --git a/AGENTS.md b/AGENTS.md index 5f2f8e4cdd..fc33e2f049 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -1,10 +1,10 @@ # AGENTS.md -This is the monorepo of the DeepSeek Harness group; it hosts **DeepSeek Harness SDK**, a plugin-based SDK for building agent harnesses. The codebase is built on the vendored Cordis framework, microkernel-style: **everything is a plugin**. Read [docs/architecture.md](docs/architecture.md) before changing `packages/`; the documentation standard is [docs/AGENTS.md](docs/AGENTS.md). +The DeepSeek Harness group monorepo, hosting **DeepSeek Harness SDK** — a plugin-based SDK for building agent harnesses on the vendored Cordis framework, microkernel-style: **everything is a plugin**. Read [docs/architecture.md](docs/architecture.md) before changing `packages/`; the documentation standard is [docs/AGENTS.md](docs/AGENTS.md). ## Pre-release stance: foundation over blast radius -**This applies only while the harness is unreleased — remove this section at the first tagged release.** There are no external consumers, so optimize for the correct foundation, not a small diff: move files, rename public symbols, repackage plugins, and update every reference in the same change. No backward-compat shims, deprecation aliases, or re-export stubs. On-disk formats need no migrations — a backend REJECTS anything not at the current version. Two sanctioned version stances: monotonic bump-and-reject (the SQLite backend's `SCHEMA_VERSION`), and a pinned `0` that absorbs all shape churn (`SESSION_FORMAT_VERSION` in `dsh-session`, documented "no compatibility implied"). Real version policy begins at the first release. +**Applies only while the harness is unreleased — remove this section at the first tagged release.** With no external consumers, optimize for the correct foundation, not a small diff: move files, rename public symbols, repackage plugins, and update every reference in the same change. No backward-compat shims, deprecation aliases, or re-export stubs. On-disk formats need no migrations — a backend REJECTS anything not at the current version. Two sanctioned version stances: monotonic bump-and-reject (the SQLite backend's `SCHEMA_VERSION`), and a pinned `0` that absorbs all shape churn (`SESSION_FORMAT_VERSION` in `dsh-session`, documented "no compatibility implied"). Real version policy begins at the first release. ## Repository layout diff --git a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl index 008d968c01..3e91a5a62a 100644 --- a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl @@ -1,36 +1,33 @@ -{"type":"session","version":0,"id":"72de3ed9-a2cb-44da-a9fd-5249b5c65b52","createdAt":1783352040349,"cwd":"/tmp/acp-snap-cwd-7wwwVQ"} -{"type":"turn/start","seq":0,"time":1783352040353,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783352040354,"data":{"content":[{"type":"text","text":"Reply with exactly the word: PONG. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783352040355,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783352040356,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-7wwwVQ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe script MUST begin with `export const meta = {...}` — a PURE object literal (no variables, calls, or template interpolation) with required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The body after it is plain JavaScript (NOT TypeScript) running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). 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Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":2,"time":1783437535690,"data":{"turn":1,"step":1}} +{"type":"request/header","seq":3,"time":1783437535690,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-XUOYdd.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. 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Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. 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Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe script MUST begin with `export const meta = {...}` — a PURE object literal (no variables, calls, or template interpolation) with required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The body after it is plain JavaScript (NOT TypeScript) running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; `Date.now()`, `Math.random()`, and argless `new Date()` throw (pass timestamps via `args`); no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The complete workflow script: `export const meta = {...}` followed by the plain-JS body (top-level await allowed; end with `return `)."},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} +{"type":"assistant/chunk","seq":4,"time":1783437536390,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} 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tools."},{"type":"text","text":"PONG."}],"usage":{"inputTokens":2867,"outputTokens":20,"cacheReadTokens":0,"reasoningTokens":16}},"sourceEventSeqs":[4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28],"surfaceOp":"append"} +{"type":"step/end","seq":30,"time":1783437536706,"data":{"turn":1,"step":1}} +{"type":"turn/end","seq":31,"time":1783437536706,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/text-turn/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/text-turn/stdout.golden.jsonl index dda3afb9c5..bc3582f027 100644 --- a/examples/acp-agent/tests/snapshots/text-turn/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/text-turn/stdout.golden.jsonl @@ -8,18 +8,15 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" exactly"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" word"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"P"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONG"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\""}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":".\""}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" not"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" use"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" any"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" no"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" tools"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"P"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"ONG"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"."}}}} {"jsonrpc":"2.0","id":3,"result":{"stopReason":"end_turn"}} From 773ecf03f578d1cf8c775fb3d51f6b872cf3ae81 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Wed, 8 Jul 2026 00:51:19 +0800 Subject: [PATCH 047/232] workflow: drop the determinism bans (unimplemented-resume pre-support) The Date.now()/Math.random()/argless-new-Date() bans existed solely to keep scripts resume-compatible for the deferred journaling/resume feature. Pre-support for an unimplemented feature is speculative cost: scripts may now read the clock freely; implementing resume reintroduces the bans as a script-contract tightening. The RFC's shipped-state description is updated in place, the tool DESCRIPTION drops the constraint sentence (the pinned text-turn header follows), and the engine README's trust-premise paragraph now leans on absent globals alone. --- .../feature/2026-07-05-dynamic-workflows.md | 4 ++-- docs/tool-catalog.md | 2 +- .../tests/snapshots/text-turn/session.jsonl | 2 +- packages/workflow/tool-workflow/README.md | 2 +- packages/workflow/tool-workflow/src/index.ts | 6 +++--- packages/workflow/workflow-vm/README.md | 4 ++-- packages/workflow/workflow-vm/src/runtime.ts | 20 ------------------- .../workflow-vm/tests/workflow-vm.spec.ts | 11 +--------- 8 files changed, 11 insertions(+), 40 deletions(-) diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index daf041a1d8..f7749efa56 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -12,7 +12,7 @@ A workflow capability family at `packages/workflow/` in the bash seam shape (int ### The script contract (Claude Code-compatible) -A script is `export const meta = {...}` (a PURE object literal: `name`, `description`, optional `whenToUse`/`phases`) followed by a plain-JS body with top-level `await`, ending in `return `. The body sees exactly: `agent(prompt, {label, phase, schema, model})`, `parallel(thunks)`, `pipeline(items, ...stages)` (NO cross-stage barrier; `(prev, item, index)` callbacks), `phase(title)`, `log(message)`, and `args`. CC semantics are preserved where they matter to script authors: a failed child resolves `null` (scripts `.filter(Boolean)`); an ordinary stage throw nulls the ITEM and skips its remaining stages; `Date.now()`/`Math.random()`/argless `new Date()` throw (kept banned so future resume support cannot break script compatibility). +A script is `export const meta = {...}` (a PURE object literal: `name`, `description`, optional `whenToUse`/`phases`) followed by a plain-JS body with top-level `await`, ending in `return `. The body sees exactly: `agent(prompt, {label, phase, schema, model})`, `parallel(thunks)`, `pipeline(items, ...stages)` (NO cross-stage barrier; `(prev, item, index)` callbacks), `phase(title)`, `log(message)`, and `args`. CC semantics are preserved where they matter to script authors: a failed child resolves `null` (scripts `.filter(Boolean)`); an ordinary stage throw nulls the ITEM and skips its remaining stages. CC's determinism bans (`Date.now()`/`Math.random()`/argless `new Date()` throwing) are NOT enforced — they exist for CC's journaling/resume, which this cut defers — so a CC-authored script runs unchanged while scripts written here may freely read the clock. One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferred options (`effort`/`isolation`/`agentType`), malformed arguments, schemas outside the supported subset, tripped caps, seam start failures — throws a `WorkflowError` with `fatal: true`, and the combinators RE-THROW fatal errors instead of nulling the item. Without this, a typo'd option dissolves into a `null` indistinguishable from a child failure — the accepted-then-ignored failure mode this repo bans. One addition: the tool's `args` parameter is a JSON OBJECT (a bare list is wrapped as a field) so the wire schema stays honest. @@ -41,7 +41,7 @@ A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, awai ## Deferred (documented non-goals of this cut) - **Background collection** (start tool → run id → completion notice → collect), designed alongside bash/subagent background unification. -- **Journaling + resume** (`resumeFromRunId`, cached agent() prefixes) — the determinism bans already keep scripts resume-compatible. +- **Journaling + resume** (`resumeFromRunId`, cached agent() prefixes) — implementing it reintroduces CC's determinism bans as a script-contract tightening (scripts may read the clock today). - **Saved/bundled workflows** (a `.deepseek/workflows/` registry, slash-command surface) and **script persistence to a run directory** (the tool-call event already records the script durably). - **Nested `workflow()`**, **token `budget`**, and the `effort`/`isolation`/`agentType` agent options (each rejects loud with a message naming it deferred). - **An overall run wall-clock timeout** — cancellation always frees the caller (result settles within the grace), so a cap on total run time is a policy knob for the background redesign, not a correctness need here. diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md index 87b1a8a999..3794b1d7a7 100644 --- a/docs/tool-catalog.md +++ b/docs/tool-catalog.md @@ -293,7 +293,7 @@ Script-body hooks: Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. -Constraints: concurrency and total-agent caps apply; `Date.now()`, `Math.random()`, and argless `new Date()` throw (pass timestamps via `args`); no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. +Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. ```json { diff --git a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl index 3e91a5a62a..39898c5003 100644 --- a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783437535688,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783437535689,"data":{"content":[{"type":"text","text":"Reply with exactly the word: PONG. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783437535690,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783437535690,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-XUOYdd.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe script MUST begin with `export const meta = {...}` — a PURE object literal (no variables, calls, or template interpolation) with required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The body after it is plain JavaScript (NOT TypeScript) running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; `Date.now()`, `Math.random()`, and argless `new Date()` throw (pass timestamps via `args`); no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The complete workflow script: `export const meta = {...}` followed by the plain-JS body (top-level await allowed; end with `return `)."},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783437535690,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-XUOYdd.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe script MUST begin with `export const meta = {...}` — a PURE object literal (no variables, calls, or template interpolation) with required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The body after it is plain JavaScript (NOT TypeScript) running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The complete workflow script: `export const meta = {...}` followed by the plain-JS body (top-level await allowed; end with `return `)."},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783437536390,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783437536390,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783437536568,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/packages/workflow/tool-workflow/README.md b/packages/workflow/tool-workflow/README.md index 37c9f9f426..44160d8fc1 100644 --- a/packages/workflow/tool-workflow/README.md +++ b/packages/workflow/tool-workflow/README.md @@ -4,7 +4,7 @@ The model-facing **`workflow` tool**: run a JavaScript orchestration script that ## What the model sees -Two parameters: `script` (required — the full `export const meta = {...}` + body text; the tool DESCRIPTION carries the complete authoring contract: hooks, semantics, determinism bans, the supported schema subset) and `args` (optional JSON object exposed to the script as the `args` global; a bare list is wrapped as a field, a deliberate deviation from Claude Code's any-JSON `args` so the wire schema stays honest). The plugin also contributes a `tool:` system-prompt section carrying the usage policy — use the tool only on an explicit user ask for a workflow / large orchestration; prefer plain subagent calls for one or two delegations — per the convention that tool guidance ships with the tool plugin, never in the deployment persona. +Two parameters: `script` (required — the full `export const meta = {...}` + body text; the tool DESCRIPTION carries the complete authoring contract: hooks, semantics, the supported schema subset) and `args` (optional JSON object exposed to the script as the `args` global; a bare list is wrapped as a field, a deliberate deviation from Claude Code's any-JSON `args` so the wire schema stays honest). The plugin also contributes a `tool:` system-prompt section carrying the usage policy — use the tool only on an explicit user ask for a workflow / large orchestration; prefer plain subagent calls for one or two delegations — per the convention that tool guidance ships with the tool plugin, never in the deployment persona. ## Lifecycle diff --git a/packages/workflow/tool-workflow/src/index.ts b/packages/workflow/tool-workflow/src/index.ts index 4df4d6aba1..a5eae80aec 100644 --- a/packages/workflow/tool-workflow/src/index.ts +++ b/packages/workflow/tool-workflow/src/index.ts @@ -51,8 +51,8 @@ export const Config: z = z.object({ /** * The script-authoring contract, embedded in the tool description. This IS the - * model-facing spec: the meta block, the hooks and their exact semantics, the - * determinism bans, and the supported schema subset. + * model-facing spec: the meta block, the hooks and their exact semantics, and + * the supported schema subset. */ const DESCRIPTION = `Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. @@ -66,7 +66,7 @@ Script-body hooks: Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item \`null\`. -Constraints: concurrency and total-agent caps apply; \`Date.now()\`, \`Math.random()\`, and argless \`new Date()\` throw (pass timestamps via \`args\`); no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.` +Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.` type WorkflowCallArgs = { script: string; args?: Record } diff --git a/packages/workflow/workflow-vm/README.md b/packages/workflow/workflow-vm/README.md index e81e74dc7e..e29073c2b3 100644 --- a/packages/workflow/workflow-vm/README.md +++ b/packages/workflow/workflow-vm/README.md @@ -4,13 +4,13 @@ The first [`WorkflowService`](../workflow/README.md) implementation: an in-proce ## Trust premise -Workflow scripts are **model-written** — the same trust level as the model's existing bash access — so this engine defends against **buggy** scripts, never hostile ones. vm is NOT a security boundary and no attempt is made to contain adversarial values: property reads on script values may run script code (a getter, a `toString`, a proxy trap) on the host stack, and a script determined to hang the process can simply spin past its first await (see the limitations below). Concretely, the context is **escapable by construction**: `node:vm` shares object machinery with the host, so a script can reach the host `Function` constructor (`globalThis.constructor.constructor`) and from it `process` and every Node builtin — the absent globals and determinism bans are API surface that keeps honest scripts portable and resume-compatible, not walls. What the engine DOES guarantee, because benign scripts hit these constantly: `result` never rejects, a dropped hook promise never becomes an unhandled rejection (the app boot layer exits the process on those), values that JSON cannot carry are rejected **loud** instead of silently mangled, and hook misuse is fatal instead of dissolving into a per-item `null`. Genuine sandboxing is an engine swap behind the seam (worker-thread/isolated-vm, where the boundary is serialization by construction), not incremental host-side defenses here. +Workflow scripts are **model-written** — the same trust level as the model's existing bash access — so this engine defends against **buggy** scripts, never hostile ones. vm is NOT a security boundary and no attempt is made to contain adversarial values: property reads on script values may run script code (a getter, a `toString`, a proxy trap) on the host stack, and a script determined to hang the process can simply spin past its first await (see the limitations below). Concretely, the context is **escapable by construction**: `node:vm` shares object machinery with the host, so a script can reach the host `Function` constructor (`globalThis.constructor.constructor`) and from it `process` and every Node builtin — the absent globals are API surface that keeps honest scripts portable, not walls. What the engine DOES guarantee, because benign scripts hit these constantly: `result` never rejects, a dropped hook promise never becomes an unhandled rejection (the app boot layer exits the process on those), values that JSON cannot carry are rejected **loud** instead of silently mangled, and hook misuse is fatal instead of dissolving into a per-item `null`. Genuine sandboxing is an engine swap behind the seam (worker-thread/isolated-vm, where the boundary is serialization by construction), not incremental host-side defenses here. ## The script contract it executes - **Meta extraction** (`extractMeta`): a string/comment-aware brace scanner finds the leading `export const meta` literal (template interpolation rejected — the literal must be pure), evaluates it ALONE in an empty timed vm context, materializes the result to plain JSON data, validates the shape (`name`/`description` required; unknown fields rejected loud), and blanks the statement line-preservingly so error stacks keep the script's own line numbers. - **Hooks**: `agent(prompt, {label, phase, schema, model})` (schema = the [structured-output subset](../../core/tools/README.md), forwarded as `outputSchema`; result = validated object, or final text without a schema; a failed child resolves `null`), `parallel(thunks)`, `pipeline(items, ...stages)` with NO cross-stage barrier and `(prev, item, index)` stage callbacks, `phase(title)`, `log(message)`, and the `args` global. Anything else — `effort`/`isolation`/`agentType`, unknown options, malformed arguments, schemas outside the subset — throws a FATAL `WorkflowError` that `parallel`/`pipeline` re-throw rather than nulling (see the seam README's failure discipline). -- **Determinism bans**: `Date.now()`, `Math.random()`, and argless `new Date()` throw (kept even though resume is deferred, so scripts stay resume-compatible); no timers, filesystem, or Node APIs are injected into the context (absence is API surface, not containment — see the trust premise). +- **No ambient APIs**: no timers, filesystem, or Node APIs are injected into the context (absence is API surface, not containment — see the trust premise). ## The value boundary diff --git a/packages/workflow/workflow-vm/src/runtime.ts b/packages/workflow/workflow-vm/src/runtime.ts index 0938b7f2c9..c4e5d1c651 100644 --- a/packages/workflow/workflow-vm/src/runtime.ts +++ b/packages/workflow/workflow-vm/src/runtime.ts @@ -75,25 +75,6 @@ const SUPPORTED_AGENT_OPTIONS = new Set(['label', 'phase', 'schema', 'model']) /** Deferred Claude Code options we name explicitly in the rejection message. */ const DEFERRED_AGENT_OPTIONS = new Set(['effort', 'isolation', 'agentType']) -/** The in-context prelude that bans the nondeterminism sources (kept even though resume is deferred, so scripts stay resume-compatible). */ -const DETERMINISM_PRELUDE = ` -{ - const banned = (name) => () => { - throw new Error(name + ' is not available in workflow scripts (runs must stay deterministic for future resume support; pass timestamps in via args)') - } - Math.random = banned('Math.random()') - Date.now = banned('Date.now()') - const RealDate = Date - globalThis.Date = new Proxy(RealDate, { - construct(target, args, newTarget) { - if (args.length === 0) banned('argless new Date()')() - return Reflect.construct(target, args, newTarget) - }, - apply: banned('Date()'), - }) -} -` - /** Flatten a child's final output blocks to text (the non-schema `agent()` result). */ function outputText(blocks: ContentBlock[]): string { return blocks @@ -167,7 +148,6 @@ export class WorkflowExecution { } this.context = vm.createContext({}, { name: `workflow:${meta.name}` }) - vm.runInContext(DETERMINISM_PRELUDE, this.context) // A run that settles without ever being abandoned leaves `abandoned` // permanently pending or rejecting into the void — consume it so a late // grace timer cannot surface an unhandled rejection. diff --git a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts index 1dc4833426..eeda6bf049 100644 --- a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts +++ b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts @@ -413,16 +413,7 @@ describe('dsh-workflow-vm', () => { }) }) - describe('determinism bans and the value boundary', () => { - it('Date.now, Math.random, and argless new Date throw; parameterized Date stays usable', async () => { - const { ctx, parent } = await setup() - expect((await run(ctx, parent, script('return Date.now()'))).error).toContain('Date.now() is not available') - expect((await run(ctx, parent, script('return Math.random()'))).error).toContain('Math.random() is not available') - expect((await run(ctx, parent, script('return new Date().toISOString()'))).error).toContain('argless new Date()') - const ok = await run(ctx, parent, script('return new Date(0).getTime()')) - expect(ok.value).toBe(0) - }) - + describe('the value boundary', () => { it('args are cloned at start: a script scribbling on them cannot mutate the caller\'s object', async () => { const { ctx, parent } = await setup() const hostArgs = { files: ['a.ts'], nested: { deep: [1, 2] } } From e97fffeab76638f06bfecdde06f21349a62095f1 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Wed, 8 Jul 2026 10:05:34 +0800 Subject: [PATCH 048/232] refactor(agent): rename agent/request-messages to agent/request-advice MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit tianyicui's review: the seam name did not say what the event or its types do. 'advice' reads both ways — advisory content for the model, and AOP before/after advice woven around a join point (here the derived history) without modifying it — so RequestAdvice.before/after are self-describing. Types follow: RequestAdvice / RequestAdviceContext; the logged EpochHeader fields keep their positional names (messagePrefix/messageSuffix). Also sharpens the core.md wording the review flagged as ambiguous: before-advice sits in front of the ENTIRE derived history, directly after the system slot (the conventional home for session-stable openers — an AGENTS.md digest, a skills catalog), after-advice follows the history's last message. Catalogs and doc graphs regenerated. --- docs/architecture.md | 4 +- docs/cordis-catalog/events.md | 34 +++++------ docs/core-data-structures/core.md | 18 +++--- docs/core-data-structures/session.md | 4 +- docs/event-producer-consumer.md | 24 ++++---- .../2026-07-05-reconstructable-requests.md | 6 +- packages/core/agent-loop/README.md | 4 +- packages/core/agent-loop/src/loop.ts | 41 +++++++------ .../agent-loop/tests/interception.spec.ts | 18 +++--- packages/core/agent/README.md | 2 +- packages/core/agent/src/types.ts | 60 ++++++++++--------- packages/core/session/README.md | 2 +- packages/core/session/src/types.ts | 2 +- packages/support/invariants/src/index.ts | 2 +- scripts/type-equiv.manifest.json | 4 +- 15 files changed, 117 insertions(+), 108 deletions(-) diff --git a/docs/architecture.md b/docs/architecture.md index 18138c41cd..1ba6eb1ef9 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -72,7 +72,7 @@ forever: agent/pre-step 'step/start' snapshot the derived messages (the reconstruction boundary) - agent/request (config only) -> agent/request-messages -> log request/header -> llm/stream (frozen) + agent/request (config only) -> agent/request-advice -> log request/header -> llm/stream (frozen) 'assistant/chunk' agent/step-result 'assistant/message' @@ -141,7 +141,7 @@ New behavior should attach to a documented seam; changing the shipped loop requi | Add command execution | implement and register a `ctx.bash` backend | | Add filesystem access or policy | implement a `ctx.fs` provider or listen on `fs/*` policy events | | Intercept prompts, requests, tool use, or continuation | listen on the relevant `agent/*` or `tools/*` waterfall | -| Add per-request context that must not become history | contribute request-only messages on `agent/request-messages`; logged on the request header | +| Add per-request context that must not become history | contribute request-only messages on `agent/request-advice`; logged on the request header | | Add UI or editor integration | drive `ctx.agents` and render from `session/event` | | Add durable session state | add a `SessionEventMap` member and render/replay from the log | | Fork a live session | use `ctx.sessions.fork(source, boundary?, childSessionId?)` | diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 0a7895baff..9bd7519d80 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -23,7 +23,7 @@ An agent was registered in the AgentRegistry and is ready to receive messages. Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:308`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:313`](../../packages/core/agent/src/types.ts) ### `agent/disposed` — emit @@ -35,7 +35,7 @@ An agent was disposed and removed from the registry; its fiber and any in-flight Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:315`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:320`](../../packages/core/agent/src/types.ts) ### `agent/error` — emit @@ -47,7 +47,7 @@ A step or turn errored. The loop reports a failure here (plus the logger) even w Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:506`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:512`](../../packages/core/agent/src/types.ts) ### `agent/pre-step` — serial @@ -61,7 +61,7 @@ Serial (awaited in registration order), not a waterfall: a listener mutates the Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:393`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:398`](../../packages/core/agent/src/types.ts) ### `agent/prompt-submit` — waterfall @@ -73,7 +73,7 @@ Waterfall: decide what happens to ONE drained queued message before it becomes a Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:406`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:411`](../../packages/core/agent/src/types.ts) ### `agent/queued` — emit @@ -85,11 +85,11 @@ A message entered the agent's inbox (queued or steering). `source` is the resolv Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:333`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:338`](../../packages/core/agent/src/types.ts) ### `agent/request` — waterfall -Waterfall: shape the step's call configuration — model switching, sampling overrides — by returning a replacement LlmCallConfig (the frozen seed is the config the loop would otherwise use). Config is ALL a listener shapes here: every request is a pure function of the session log (the reconstructability RFC), so model-visible content flows through the log channels — `inject()`, steering, prompt-submit `additionalContext`, prompt sections via `system-prompt/assemble`, or header-logged request-only messages via agent/request-messages — never through request mutation, and the loop records whatever config the request actually uses as a `request/header*` event before dispatch. The step's messages are already snapshotted when this fires (the `step/start` boundary): an `inject()` from a listener here lands in the log but joins the NEXT request. For surface mutation that must precede the snapshot (compaction), use agent/pre-step. Call `next()` to delegate, or return an LlmCallConfig without it to short-circuit. +Waterfall: shape the step's call configuration — model switching, sampling overrides — by returning a replacement LlmCallConfig (the frozen seed is the config the loop would otherwise use). Config is ALL a listener shapes here: every request is a pure function of the session log (the reconstructability RFC), so model-visible content flows through the log channels — `inject()`, steering, prompt-submit `additionalContext`, prompt sections via `system-prompt/assemble`, or header-logged request-only messages via agent/request-advice — never through request mutation, and the loop records whatever config the request actually uses as a `request/header*` event before dispatch. The step's messages are already snapshotted when this fires (the `step/start` boundary): an `inject()` from a listener here lands in the log but joins the NEXT request. For surface mutation that must precede the snapshot (compaction), use agent/pre-step. Call `next()` to delegate, or return an LlmCallConfig without it to short-circuit. ```ts cordis-catalog 'agent/request'(agent: Agent, turn: number, step: number, config: LlmCallConfig, next: () => Promise): Promise @@ -97,23 +97,23 @@ Waterfall: shape the step's call configuration — model switching, sampling ove Types: [Agent](../core-data-structures/core.md) · [LlmCallConfig](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:430`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:435`](../../packages/core/agent/src/types.ts) -### `agent/request-messages` — waterfall +### `agent/request-advice` — waterfall -Waterfall: contribute request-ONLY messages around the derived history — a RequestMessages whose `before` messages precede the boundary snapshot in `GenerateOptions.messages` and whose `after` messages follow it. Fires once per step, inside the open step, after the agent/request config waterfall and before the loop logs the request header. This is the seam for per-request advisory context the model must see NOW but that must NOT become durable history (a skills catalog, an environment reminder): contributions are recorded on the request's `request/header*` event (`EpochHeader.messagePrefix` / `messageSuffix`) — never as session messages — so `Session.deriveMessages()` stays untouched and the request remains reconstructable from the log. +Waterfall: weave request-ONLY advice around the derived history — a RequestAdvice whose `before` messages sit in front of the ENTIRE boundary snapshot in `GenerateOptions.messages` and whose `after` messages follow its last message. Fires once per step, inside the open step, after the agent/request config waterfall and before the loop logs the request header. This is the seam for per-request advisory context the model must see NOW but that must NOT become durable history (a skills catalog, an environment reminder): contributions are recorded on the request's `request/header*` event (`EpochHeader.messagePrefix` / `messageSuffix`) — never as session messages — so `Session.deriveMessages()` stays untouched and the request remains reconstructable from the log. -The seed is frozen and empty; a contributing listener returns a NEW RequestMessages extending `await next()` (spread its arrays — never mutate them), so contributions compose across plugins in registration order. The boundary snapshot is already taken when this fires: a `session.append`/`inject()` from a listener here lands in the log but joins the NEXT request — contribute through the returned value, not the session. Call `next()` to delegate, or return a RequestMessages without it to short-circuit. +The seed is frozen and empty; a contributing listener returns a NEW RequestAdvice extending `await next()` (spread its arrays — never mutate them), so contributions compose across plugins in registration order. The boundary snapshot is already taken when this fires: a `session.append`/`inject()` from a listener here lands in the log but joins the NEXT request — contribute through the returned value, not the session. Call `next()` to delegate, or return a RequestAdvice without it to short-circuit. Pick the channel by change frequency (the cost model): a contribution rides the request's uncached tail, re-tokenized at full price on EVERY request it appears in — cheap only while small. Session-FROZEN content belongs in `before`, where it extends the cacheable prefix at zero marginal cost (but changing it mid-session invalidates the provider cache for the entire history after it). A LOW-FREQUENCY change notice belongs in durable history via `agent.inject()` — appended once, prefix-cached thereafter. Reserve `after` for small, frequently refreshed state snapshots, where a durable chain of stale copies would bloat the log and mislead the model. ```ts cordis-catalog -'agent/request-messages'(agent: Agent, turn: number, step: number, messages: RequestMessages, context: RequestMessagesContext, next: () => Promise): Promise +'agent/request-advice'(agent: Agent, turn: number, step: number, advice: RequestAdvice, context: RequestAdviceContext, next: () => Promise): Promise ``` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:471`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:477`](../../packages/core/agent/src/types.ts) ### `agent/session-start` — emit @@ -125,7 +125,7 @@ The agent's session lifecycle began, fired once before its first turn. `source` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:348`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:353`](../../packages/core/agent/src/types.ts) ### `agent/status` — emit @@ -137,7 +137,7 @@ Agent status changed (`idle` ⇄ `running`, or → `disposed`). Drive lifecycle Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:324`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:329`](../../packages/core/agent/src/types.ts) ### `agent/step-result` — waterfall @@ -149,7 +149,7 @@ Waterfall: post-process the assembled assistant Message before tool dispatch (va Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:481`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:487`](../../packages/core/agent/src/types.ts) ### `agent/turn-continuation` — waterfall @@ -161,7 +161,7 @@ Waterfall: override the turn-continuation decision via a typed ContinuationDecis Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:494`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:500`](../../packages/core/agent/src/types.ts) ## `fs/*` diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index 62dfb41c64..e0d83f435d 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -193,9 +193,9 @@ The model-facing `ToolSchema` is the wire shape; the registered `ToolDefinition` ### The request envelope: `LlmCallConfig` and the logged header -Requests are built by the loop, not shaped per call: the non-history half of a request — the `EpochHeader`: this call configuration plus the rendered system prompt, assembled tool schemas, and any request-only messages — is logged session state (`request/header` snapshot and delta events, [session.md](session.md#the-request-header-events-requestheader-and-requestheader-delta)), so every conversation request is a pure function of the session log ([reconstructability RFC](../rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)). The `agent/request` waterfall receives a frozen `LlmCallConfig` seed and a listener returns a replacement to switch model or sampling; the `agent/request-messages` waterfall contributes request-only messages framing the derived history (recorded as the header's `messagePrefix`/`messageSuffix`) — the loop logs whatever the request actually uses. Loop-built requests arrive at `llm/stream` deep-frozen; mutation throws. +Requests are built by the loop, not shaped per call: the non-history half of a request — the `EpochHeader`: this call configuration plus the rendered system prompt, assembled tool schemas, and any request-only messages — is logged session state (`request/header` snapshot and delta events, [session.md](session.md#the-request-header-events-requestheader-and-requestheader-delta)), so every conversation request is a pure function of the session log ([reconstructability RFC](../rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)). The `agent/request` waterfall receives a frozen `LlmCallConfig` seed and a listener returns a replacement to switch model or sampling; the `agent/request-advice` waterfall weaves request-only advice around the derived history (recorded as the header's `messagePrefix`/`messageSuffix`) — the loop logs whatever the request actually uses. Loop-built requests arrive at `llm/stream` deep-frozen; mutation throws. -On the wire, a loop-built request reads in this order: the `system` slot (the rendered prompt assembly) → `messagePrefix` (request-only `before` contributions) → the derived history — the boundary snapshot, whose tail is the newest `user/message` on a turn's first step and the previous step's tool results on later steps — → `messageSuffix` (request-only `after` contributions, the last thing the model reads). The framing arrays never enter the derived history; their durable record is the header events, and the dev invariant recomputes exactly this equation against every loop-built request. +On the wire, a loop-built request reads in this order: the `system` slot (the rendered prompt assembly) → `messagePrefix` (the request-only `before` advice) → the derived history — the boundary snapshot, whose tail is the newest `user/message` on a turn's first step and the previous step's tool results on later steps — → `messageSuffix` (the request-only `after` advice, the last thing the model reads). The advice arrays never enter the derived history; their durable record is the header events, and the dev invariant recomputes exactly this equation against every loop-built request. FIXME(call-config-shape): revisit the exact definition of this type — which fields are genuinely epoch-level for cache purposes (`model` certainly; the sampling scalars sit here out of caution), and where provider-specific extras (reasoning options, extra body params) belong when an adapter needs them. @@ -328,7 +328,7 @@ interface Agent { } ``` -`AgentStatus` is `'idle' | 'running' | 'disposed'`. `AgentId` is a branded string. `AgentOptions` (`model?`) is merge-extensible — plugins add creation options by declaration merging; the persona is NOT an agent option but the `dsh-system-prompt` plugin's `persona` config, shared context-wide. The `agent/*` event taxonomy (lifecycle emits incl. `agent/session-start`, the serial `agent/pre-step` surface-mutation seam, and the `agent/prompt-submit`/`agent/request`/`agent/request-messages`/`agent/step-result`/`agent/turn-continuation` waterfalls) is in [architecture.md § Event taxonomy](../architecture.md#event-taxonomy); turn/step boundaries are durable `session/event` records, not `agent/*` emits. +`AgentStatus` is `'idle' | 'running' | 'disposed'`. `AgentId` is a branded string. `AgentOptions` (`model?`) is merge-extensible — plugins add creation options by declaration merging; the persona is NOT an agent option but the `dsh-system-prompt` plugin's `persona` config, shared context-wide. The `agent/*` event taxonomy (lifecycle emits incl. `agent/session-start`, the serial `agent/pre-step` surface-mutation seam, and the `agent/prompt-submit`/`agent/request`/`agent/request-advice`/`agent/step-result`/`agent/turn-continuation` waterfalls) is in [architecture.md § Event taxonomy](../architecture.md#event-taxonomy); turn/step boundaries are durable `session/event` records, not `agent/*` emits. ## Interception decisions @@ -365,21 +365,21 @@ type ContinuationDecision = type SessionStartSource = 'startup' | 'resume' | 'clear' | 'compact' ``` -`agent/request-messages` returns a `RequestMessages` — request-only `before`/`after` messages framing the derived history for ONE request. Not a Decision union: the seam contributes content instead of vetoing, so the shape is the contribution itself; the loop records the non-empty arrays as the header's `messagePrefix`/`messageSuffix` ([the request envelope](#the-request-envelope-llmcallconfig-and-the-logged-header)), and `deriveMessages()` never returns them: +`agent/request-advice` returns a `RequestAdvice` — the request-only advice woven around the derived history for ONE request (advice in both senses: advisory content for the model, attached before/after the join point like AOP advice, never modifying the history itself). Concretely, per request: `before` messages sit in front of the ENTIRE derived history, directly after the system slot — the conventional home for session-stable openers like an AGENTS.md digest or a skills catalog, re-contributed identically every step so the provider prefix cache holds; `after` messages follow the history's last message, closing the request. Not a Decision union: the seam contributes content instead of vetoing, so the shape is the contribution itself; the loop records the non-empty arrays as the header's `messagePrefix`/`messageSuffix` ([the request envelope](#the-request-envelope-llmcallconfig-and-the-logged-header)), and `deriveMessages()` never returns them: ```ts type-equiv -interface RequestMessages { - /** Messages placed before the derived history in the request. */ +interface RequestAdvice { + /** Before-advice: messages placed ahead of the entire derived history. */ before: Message[] - /** Messages placed after the derived history in the request. */ + /** After-advice: messages placed after the derived history's last message. */ after: Message[] } ``` -Listeners read the already-fixed request facts from a `RequestMessagesContext` (decide what to contribute from these; never mutate them): +Listeners read the already-fixed request facts from a `RequestAdviceContext` (decide what to contribute from these; never mutate them): ```ts type-equiv -interface RequestMessagesContext { +interface RequestAdviceContext { /** The rendered system prompt this request will carry. */ system: string /** The prompt assembly the system prompt was rendered from (sections + tools). */ diff --git a/docs/core-data-structures/session.md b/docs/core-data-structures/session.md index ddfa77a9ff..e1f29882e5 100644 --- a/docs/core-data-structures/session.md +++ b/docs/core-data-structures/session.md @@ -111,7 +111,7 @@ export interface EpochHeader { tools?: ToolSchema[] /** * Request-only messages sent BEFORE the derived history (the - * `agent/request-messages` waterfall's `before` contributions). Not session + * `agent/request-advice` waterfall's `before` contributions). Not session * history — `deriveMessages()` never returns them — so the header is their * only durable record; absent when the request carried none. */ @@ -121,7 +121,7 @@ export interface EpochHeader { } ``` -Canonical form: an empty system prompt, an empty tool list, and empty request-only message arrays are ABSENT fields, matching how requests are built. `messagePrefix`/`messageSuffix` are the durable record of the `agent/request-messages` waterfall's contributions (the request is `messagePrefix + derived history + messageSuffix`); their deltas replace the array whole, an empty array encoding the transition back to absence. The other delta payloads (`SystemDelta` — a common-prefix/suffix line trim; `ToolsDelta` — name-keyed added/removed/changed) live beside the events in [`packages/core/session/src/types.ts`](../../packages/core/session/src/types.ts). +Canonical form: an empty system prompt, an empty tool list, and empty request-only message arrays are ABSENT fields, matching how requests are built. `messagePrefix`/`messageSuffix` are the durable record of the `agent/request-advice` waterfall's contributions (the request is `messagePrefix + derived history + messageSuffix`); their deltas replace the array whole, an empty array encoding the transition back to absence. The other delta payloads (`SystemDelta` — a common-prefix/suffix line trim; `ToolsDelta` — name-keyed added/removed/changed) live beside the events in [`packages/core/session/src/types.ts`](../../packages/core/session/src/types.ts). ## `SessionEvent` — one log entry diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 518473a046..d2b0941b2c 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -7,18 +7,18 @@ This matrix shows which packages dispatch each harness-owned event and which pac | Event | Mode | Declared in | Dispatchers | Listeners | | --- | --- | --- | --- | --- | -| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:308`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:315`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:506`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:393`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | -| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:406`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:333`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:430`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/request-messages` | `waterfall` | [`packages/core/agent/src/types.ts:471`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:348`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:324`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:481`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:494`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:313`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:320`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:512`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:398`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | +| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:411`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:338`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:435`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/request-advice` | `waterfall` | [`packages/core/agent/src/types.ts:477`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:353`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:329`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:487`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:500`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | diff --git a/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md b/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md index e17679f913..e2bb16438a 100644 --- a/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md +++ b/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md @@ -22,11 +22,11 @@ Prefix-cache stability is corollary #1, not the headline: an append-only log pro **The header.** The request's non-history half — `EpochHeader`: call config (`LlmCallConfig`: model + sampling scalars), rendered system prompt, assembled tool schemas, and any request-only messages (`messagePrefix`/`messageSuffix`, below) — is logged session state, in canonical form (empty system/tools/message arrays ≡ absent). Two log-only, turn-enclosed events in dsh-session carry it: `request/header`, a full snapshot with reason `'initial' | 'resume' | 'fallback'`, and `request/header-delta`, an amendment (`SystemDelta`: a common-prefix/suffix line trim; `ToolsDelta`: name-keyed added/removed/changed; `config`: replaced whole; `messagePrefix`/`messageSuffix`: replaced whole, an empty array encoding the transition to absence). The pure trio `foldRequestHeader` / `diffHeader` / `applyHeaderDelta` reconstructs; the live session tracks the fold with the same lazy cursor as the message cache. Snapshots anchor the fold where a fold needs anchors — conversation birth and process boundaries — and each loop instance appends one on its first request (`'initial'` when the log has none, `'resume'` otherwise, even when nothing changed: the boundary itself is a recorded fact, and cross-restart drift becomes attributable while an unchanged header resumes byte-identical). Deltas are an encoding optimization with a safety valve, never a correctness dependency: the writer verifies `applyHeaderDelta(prev, delta)` reproduces the new header exactly and records a `'fallback'` snapshot when the encoding cannot express a change (a pure tool reordering), so a well-formed log always folds. -**The loop, transmission-stateless.** Per step: render assembly (every step — value comparison needs no change-signal discipline, and a section that varies per step surfaces as a *logged* header event per step instead of a silent bust) → `agent/pre-step` (compaction's surface mutations land before derivation) → **messages snapshot, then `step/start` appended as the next operation in the same synchronous frame** → seed the call config (first request of the instance: from `AgentOptions`, so explicit options always beat the logged baseline — fork model-overrides and resume reconfiguration stay correct; afterwards: from the folded header) → the `agent/request` waterfall, re-typed `(agent, turn, step, config: LlmCallConfig, next) → LlmCallConfig` — a frozen seed and a returned replacement are ALL a listener shapes; durable content flows through the log channels (`inject()`, steering, prompt-submit `additionalContext`, sections via `system-prompt/assemble`) — → the `agent/request-messages` waterfall — request-ONLY `before`/`after` messages framing the boundary snapshot (a frozen empty seed, contributions returned as an extension of `next()`; the per-request advisory channel: content the model must see now that must NOT become history — a skills catalog, an environment reminder) — → the header event the request owes the log, carrying those contributions as `messagePrefix`/`messageSuffix` (no session event carries them, so the header is their only durable record) → build `GenerateOptions` from `messagePrefix + snapshot + messageSuffix` + header, deep-freeze (`deepFreeze` exempts the `AbortSignal`, the one live control channel — freezing one breaks `AbortController.abort()`), dispatch. The loop's only in-process bookkeeping is one boolean: whether this instance has logged its anchoring snapshot. +**The loop, transmission-stateless.** Per step: render assembly (every step — value comparison needs no change-signal discipline, and a section that varies per step surfaces as a *logged* header event per step instead of a silent bust) → `agent/pre-step` (compaction's surface mutations land before derivation) → **messages snapshot, then `step/start` appended as the next operation in the same synchronous frame** → seed the call config (first request of the instance: from `AgentOptions`, so explicit options always beat the logged baseline — fork model-overrides and resume reconfiguration stay correct; afterwards: from the folded header) → the `agent/request` waterfall, re-typed `(agent, turn, step, config: LlmCallConfig, next) → LlmCallConfig` — a frozen seed and a returned replacement are ALL a listener shapes; durable content flows through the log channels (`inject()`, steering, prompt-submit `additionalContext`, sections via `system-prompt/assemble`) — → the `agent/request-advice` waterfall — request-ONLY `before`/`after` messages framing the boundary snapshot (a frozen empty seed, contributions returned as an extension of `next()`; the per-request advisory channel: content the model must see now that must NOT become history — a skills catalog, an environment reminder) — → the header event the request owes the log, carrying those contributions as `messagePrefix`/`messageSuffix` (no session event carries them, so the header is their only durable record) → build `GenerateOptions` from `messagePrefix + snapshot + messageSuffix` + header, deep-freeze (`deepFreeze` exempts the `AbortSignal`, the one live control channel — freezing one breaks `AbortController.abort()`), dispatch. The loop's only in-process bookkeeping is one boolean: whether this instance has logged its anchoring snapshot. **The reconstruction boundary is `step/start`, unconditionally.** A step's messages are the derivation over `events[0..stepStartSeq)`. Because the snapshot precedes the `step/start` append in the same synchronous frame, nothing can enter this request past the boundary: an `agent.inject()` from an `agent/request` listener (or any concurrent task, or a `session/event` listener firing on `step/start` itself) lands in the log after the boundary and joins the NEXT request. For waterfall-window appends this matches the prior loop (it also derived before its waterfall); for a synchronous `step/start` listener it is a deliberate change — such a listener could previously reach the current request — and `agent/pre-step` is the sanctioned seam for content that must affect the CURRENT request. A step's header for reconstruction is the fold after its own `request/header*` event (which sits between its `step/start` and first response event) or the fold carried forward. -**Enforcement.** Dev-mode ([dsh-invariants](../../../../packages/support/invariants/src/index.ts)), on `llm/stream`: a frozen request with a live `sessionId` — the loop-built marker; hand-built one-shots are unfrozen and skipped — must carry messages deep-equal to the folded header's `messagePrefix`, then the boundary derivation, then its `messageSuffix` — the derivation rebuilt through a FRESH `Session` over `events[0..stepStartSeq)` so the live cache cannot vouch for itself — and header fields equal to `foldRequestHeader` over the log. There is no divergence allowance and nothing to allow: no seam can put unlogged content into a request — the `agent/request-messages` seam's contributions enter only because the header event records them first. `prepend: true` only defends against the replay adapter's short-circuit (an append-registered listener); two prepended listeners have no defined mutual order in cordis, so correctness rests on the seq-bounded fold, never on listener timing. Measurement stays lean: the with-key e2e ([request-cache.e2e.ts](../../../../packages/core/agent-loop/tests/request-cache.e2e.ts)) proves `usage.cacheReadTokens > 0` on every request after the first against the live API, and per-step usage in the log is the production observable — a header event or compaction shows up as a cache-read collapse on the next step. +**Enforcement.** Dev-mode ([dsh-invariants](../../../../packages/support/invariants/src/index.ts)), on `llm/stream`: a frozen request with a live `sessionId` — the loop-built marker; hand-built one-shots are unfrozen and skipped — must carry messages deep-equal to the folded header's `messagePrefix`, then the boundary derivation, then its `messageSuffix` — the derivation rebuilt through a FRESH `Session` over `events[0..stepStartSeq)` so the live cache cannot vouch for itself — and header fields equal to `foldRequestHeader` over the log. There is no divergence allowance and nothing to allow: no seam can put unlogged content into a request — the `agent/request-advice` seam's contributions enter only because the header event records them first. `prepend: true` only defends against the replay adapter's short-circuit (an append-registered listener); two prepended listeners have no defined mutual order in cordis, so correctness rests on the seq-bounded fold, never on listener timing. Measurement stays lean: the with-key e2e ([request-cache.e2e.ts](../../../../packages/core/agent-loop/tests/request-cache.e2e.ts)) proves `usage.cacheReadTokens > 0` on every request after the first against the live API, and per-step usage in the log is the production observable — a header event or compaction shows up as a cache-read collapse on the next step. ### The MiniCode shape: adopted, with the provenance arrow inverted @@ -44,7 +44,7 @@ What survives from `LLMClient`: the conversation is maintained, not rebuilt — ## Consequences - A request that is not explained by the log cannot be constructed by accident — not by the loop, not by a listener; mutating a built request throws; every header change is a durable, diffable log event. -- Choosing between the advisory channels is a change-frequency cost decision, and the seam does not hide it: an `agent/request-messages` contribution rides the request's uncached tail and is re-tokenized at full price on every request it appears in (a `before` contribution instead extends the cacheable prefix at zero marginal cost while stable, but a mid-session change invalidates the provider cache for the entire history after it), whereas an `inject()`ed `context/message` is paid once and prefix-cached thereafter at the price of accumulating durably in history and the log. Route session-frozen content to `before`, low-frequency change notices to `inject()`, and reserve `after` for small, frequently refreshed state snapshots where a durable chain of stale copies would bloat the log and mislead the model. +- Choosing between the advisory channels is a change-frequency cost decision, and the seam does not hide it: an `agent/request-advice` contribution rides the request's uncached tail and is re-tokenized at full price on every request it appears in (a `before` contribution instead extends the cacheable prefix at zero marginal cost while stable, but a mid-session change invalidates the provider cache for the entire history after it), whereas an `inject()`ed `context/message` is paid once and prefix-cached thereafter at the price of accumulating durably in history and the log. Route session-frozen content to `before`, low-frequency change notices to `inject()`, and reserve `after` for small, frequently refreshed state snapshots where a durable chain of stale copies would bloat the log and mislead the model. - What still costs full price at the provider is inherent and logged: compaction (its `compact/*` events and replace node), a real prompt/tool change (`request/header-delta`), a config switch (ditto), a process boundary with drift (`'resume'` snapshot differing from its predecessor). The provider's own reasoning-content exclusion is managed server-side. - The `step/start`-listener behavior change (above) is the one observable semantics change for plugins; `agent/pre-step` is the current-request seam. - Tool-result trimming (planned) needs no new mechanism: a logged single-node surface replace (`start === end`) carrying a trimmed `tool/result` under the same `callId` — compaction-family, replay-correct, cache-bust batched by the same pressure logic. diff --git a/packages/core/agent-loop/README.md b/packages/core/agent-loop/README.md index 2afa08850a..ebdcc7d91a 100644 --- a/packages/core/agent-loop/README.md +++ b/packages/core/agent-loop/README.md @@ -59,7 +59,7 @@ forever: boundary = session.deriveMessages() ⟵ reconstruction boundary: same sync frame, session('step/start') strictly before step/start config = waterfall agent/request ⟵ frozen seed; return a replacement to switch - reqMsgs = waterfall agent/request-messages ⟵ request-only before/after messages; recorded + reqMsgs = waterfall agent/request-advice ⟵ request-only before/after messages; recorded on the header, never session history session('request/header'[-delta]) ⟵ the header event this request owes the log stream llm.stream(freeze({header..., messages: before+boundary+after})) → session('assistant/chunk') @@ -86,7 +86,7 @@ Cancellation: `agent.cancel()` is the single public stop primitive — it clears ### What is NOT here Everything that goes beyond "call the model, run the tools, repeat" belongs to plugins listening on the event taxonomy: -- Hooks: `agent/session-start`, `agent/prompt-submit`, `agent/pre-step`, `agent/request`, `agent/request-messages`, `agent/step-result`, `tools/pre-execute`, `tools/post-execute`, `agent/turn-continuation` +- Hooks: `agent/session-start`, `agent/prompt-submit`, `agent/pre-step`, `agent/request`, `agent/request-advice`, `agent/step-result`, `tools/pre-execute`, `tools/post-execute`, `agent/turn-continuation` - Compaction: `agent/pre-step` - Sandbox, permission, plan mode: `tools/pre-execute` (deny/ask gate), `tools/post-execute` - Sub-agents: implemented outside the loop as `ctx.subagents` providers; in-process providers use `ctx.agents.create()` and owned `AgentHandle` teardown, while child streaming/progress and background/poll collection remain deferred. diff --git a/packages/core/agent-loop/src/loop.ts b/packages/core/agent-loop/src/loop.ts index b770a34688..9170de4836 100644 --- a/packages/core/agent-loop/src/loop.ts +++ b/packages/core/agent-loop/src/loop.ts @@ -10,7 +10,7 @@ import type { Context } from 'cordis' import type { FinishReason, GenerateOptions, LlmCallConfig, Message } from '@deepseek-ai/dsh-llm' import { BlockAssembler, HarnessError, deepFreeze } from '@deepseek-ai/dsh-llm' -import type { ContinuationDecision, HookContext, PromptDecision, RequestMessages } from '@deepseek-ai/dsh-agent' +import type { ContinuationDecision, HookContext, PromptDecision, RequestAdvice } from '@deepseek-ai/dsh-agent' import { canonicalHeader } from '@deepseek-ai/dsh-session' import type { Session, TurnEndReason, TurnTrigger } from '@deepseek-ai/dsh-session' import { createTransmissionLog, recordRequestHeader } from './request-log.ts' @@ -161,7 +161,7 @@ export interface LoopHandle { * boundary = session.deriveMessages() ⟵ the reconstruction boundary: snapshot in the * session('step/start') same sync frame, strictly before step/start * config = waterfall agent/request(config) ⟵ frozen seed; a returned replacement switches - * reqMsgs = waterfall agent/request-messages ⟵ request-only before/after messages; logged on + * advice = waterfall agent/request-advice ⟵ request-only before/after advice; logged on * the header, never session history * session('request/header'|'request/header-delta') ⟵ the header event this request owes the * log (initial/resume anchor, delta, fallback) @@ -720,32 +720,35 @@ async function runStep( throw new Error(`agent "${agent.id}" has no model: set AgentOptions.model or supply one via the agent/request waterfall`) } - // Collect request-ONLY messages: `before` contributions precede the boundary - // snapshot in the request, `after` contributions follow it. They are not - // session history — the header event below is their only durable record - // (EpochHeader.messagePrefix/messageSuffix), which keeps the request a pure - // function of the log. The frozen empty seed serves both the listener chain - // and the no-listener fallback: a contribution is a RETURNED extension of - // `await next()`, never an in-place push. Fired AFTER the boundary snapshot, - // so a listener's session append lands past the boundary and joins the NEXT + // Collect the request-ONLY advice: `before` messages go in front of the + // entire boundary snapshot, `after` messages follow its last message. Advice + // is not session history — the header event below is its only durable + // record (EpochHeader.messagePrefix/messageSuffix), which keeps the request + // a pure function of the log. The frozen empty seed serves both the + // listener chain and the no-listener fallback: a contribution is a RETURNED + // extension of `await next()`, never an in-place push. The context gets a + // frozen COPY of the boundary (the request is built from the internal + // snapshot), so a listener cannot smuggle unlogged content into the request + // by mutating what it was shown. Fired AFTER the boundary snapshot, so a + // listener's session append lands past the boundary and joins the NEXT // request — the same window rule as the `agent/request` waterfall. - const emptyRequestMessages: RequestMessages = deepFreeze({ before: [], after: [] }) - const requestMessagesBoundary = deepFreeze([...boundaryMessages]) - const requestMessages = await ctx.waterfall( - 'agent/request-messages', agent, turn, step, emptyRequestMessages, - { system, assembly, boundaryMessages: requestMessagesBoundary, signal }, - () => Promise.resolve(emptyRequestMessages), + const emptyRequestAdvice: RequestAdvice = deepFreeze({ before: [], after: [] }) + const requestAdviceBoundary = deepFreeze([...boundaryMessages]) + const requestAdvice = await ctx.waterfall( + 'agent/request-advice', agent, turn, step, emptyRequestAdvice, + { system, assembly, boundaryMessages: requestAdviceBoundary, signal }, + () => Promise.resolve(emptyRequestAdvice), ) // The request header (the log's request/header* vocabulary): canonical form, // recorded before dispatch so the log always explains the request — - // including the request-only messages, which no other event carries. + // including the request-only advice, which no other event carries. const header = canonicalHeader({ config, ...system ? { system } : {}, ...assembly.tools.length > 0 ? { tools: assembly.tools } : {}, - ...requestMessages.before.length > 0 ? { messagePrefix: requestMessages.before } : {}, - ...requestMessages.after.length > 0 ? { messageSuffix: requestMessages.after } : {}, + ...requestAdvice.before.length > 0 ? { messagePrefix: requestAdvice.before } : {}, + ...requestAdvice.after.length > 0 ? { messageSuffix: requestAdvice.after } : {}, }) recordRequestHeader(session, transmission, header) diff --git a/packages/core/agent-loop/tests/interception.spec.ts b/packages/core/agent-loop/tests/interception.spec.ts index 14db911a7e..f980b2337c 100644 --- a/packages/core/agent-loop/tests/interception.spec.ts +++ b/packages/core/agent-loop/tests/interception.spec.ts @@ -8,7 +8,7 @@ import AgentRegistry, { AgentId, type ContinuationDecision, type PromptDecision, - type RequestMessages, + type RequestAdvice, type SessionStartSource, } from '@deepseek-ai/dsh-agent' import AgentLoop, { type ReactLoopAgent } from '@deepseek-ai/dsh-agent-loop' @@ -311,7 +311,7 @@ describe('agent/session-start', () => { }) }) -describe('agent/request-messages (RequestMessages)', () => { +describe('agent/request-advice (RequestAdvice)', () => { it('frames the derived history: before precedes it, after follows it, and the header records both', async () => { const adapter = new MockAdapter([textResponse('ok')]) const ctx = await harness(adapter) @@ -319,7 +319,7 @@ describe('agent/request-messages (RequestMessages)', () => { const reminder: Message = { role: 'user', content: [{ type: 'text', text: 'catalog' }] } const trailer: Message = { role: 'user', content: [{ type: 'text', text: 'trailing note' }] } - ctx.on('agent/request-messages', async (_agent, _turn, _step, _messages, _context, next): Promise => { + ctx.on('agent/request-advice', async (_agent, _turn, _step, _messages, _context, next): Promise => { const result = await next() return { before: [...result.before, reminder], after: [...result.after, trailer] } }) @@ -351,7 +351,7 @@ describe('agent/request-messages (RequestMessages)', () => { const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) const seen: { system: string; boundaryRoles: string[]; sectionCount: number }[] = [] - ctx.on('agent/request-messages', async (_agent, _turn, _step, _messages, context, next): Promise => { + ctx.on('agent/request-advice', async (_agent, _turn, _step, _messages, context, next): Promise => { const result = await next() seen.push({ system: context.system, @@ -360,7 +360,7 @@ describe('agent/request-messages (RequestMessages)', () => { }) return { before: [{ role: 'user', content: [{ type: 'text', text: 'first' }] }, ...result.before], after: result.after } }) - ctx.on('agent/request-messages', async (_agent, _turn, _step, _messages, _context, next): Promise => { + ctx.on('agent/request-advice', async (_agent, _turn, _step, _messages, _context, next): Promise => { const result = await next() return { before: [...result.before, { role: 'user', content: [{ type: 'text', text: 'second' }] }], after: result.after } }) @@ -385,7 +385,7 @@ describe('agent/request-messages (RequestMessages)', () => { const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) // A listener that delegates without contributing — the canonical no-op. - ctx.on('agent/request-messages', async (_agent, _turn, _step, _messages, _context, next) => next()) + ctx.on('agent/request-advice', async (_agent, _turn, _step, _messages, _context, next) => next()) send(agent, 'hi') await waitForIdle(ctx, agent) @@ -402,7 +402,7 @@ describe('agent/request-messages (RequestMessages)', () => { const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) let mutationError: unknown - ctx.on('agent/request-messages', async (_agent, _turn, _step, messages, _context, next): Promise => { + ctx.on('agent/request-advice', async (_agent, _turn, _step, messages, _context, next): Promise => { try { messages.before.push({ role: 'user', content: [{ type: 'text', text: 'smuggled' }] }) } catch (error: unknown) { @@ -424,7 +424,7 @@ describe('agent/request-messages (RequestMessages)', () => { const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) let mutationError: unknown - ctx.on('agent/request-messages', async (_agent, _turn, _step, _messages, context, next): Promise => { + ctx.on('agent/request-advice', async (_agent, _turn, _step, _messages, context, next): Promise => { try { const mutableBoundary = context.boundaryMessages as Message[] mutableBoundary.push({ role: 'user', content: [{ type: 'text', text: 'smuggled' }] }) @@ -454,7 +454,7 @@ describe('agent/request-messages (RequestMessages)', () => { const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) let step = 0 - ctx.on('agent/request-messages', async (_agent, _turn, _step, _messages, _context, next): Promise => { + ctx.on('agent/request-advice', async (_agent, _turn, _step, _messages, _context, next): Promise => { const result = await next() step += 1 return { before: [...result.before, { role: 'user', content: [{ type: 'text', text: `reminder v${step}` }] }], after: result.after } diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index 64a5516761..0500223369 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -45,7 +45,7 @@ Turn and step boundaries are NOT mirrored as `agent/*` emits: a consumer that ne - `agent/prompt-submit` — decide what happens to one drained queued message before it becomes a `user/message`: `PromptDecision` = `allow` (optionally rewriting the prompt `content` or attaching `additionalContext`) or `block` (drop it; a batch whose every prompt is blocked opens a zero-step turn that ends `rejected`). Maps onto Claude Code's `UserPromptSubmit`. - `agent/pre-step` (serial) — mutate the session surface before the step opens and history is derived (compaction). Fires after `turn/start` and before `step/start`, so a listener's appended events land outside the step. - `agent/request` — shape the call config before the model call: a frozen `LlmCallConfig` seed in, a replacement out (model switching, sampling overrides). Content is not shapeable here — every request is a pure function of the session log ([reconstructability RFC](../../../docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)); the loop logs whatever config the request actually uses as a `request/header*` event -- `agent/request-messages` — contribute request-ONLY messages around the derived history: a frozen empty `RequestMessages` seed in, an extension of `await next()` out (`before` messages precede the boundary snapshot in the request, `after` messages follow it). For per-request advisory context the model must see now but that must not become durable history; the loop records the contributions on the request's `request/header*` event (`EpochHeader.messagePrefix`/`messageSuffix`), so `deriveMessages()` stays untouched and the request stays reconstructable. Cost model: contributions ride the request's uncached tail and are re-paid at full price on every request they appear in — put session-frozen content in `before` (cacheable prefix; a mid-session change busts the cache for everything after it), route low-frequency change notices through `agent.inject()` instead (paid once, prefix-cached thereafter), and reserve `after` for small, frequently refreshed state snapshots +- `agent/request-advice` — contribute request-ONLY messages around the derived history: a frozen empty `RequestAdvice` seed in, an extension of `await next()` out (`before` messages precede the boundary snapshot in the request, `after` messages follow it). For per-request advisory context the model must see now but that must not become durable history; the loop records the contributions on the request's `request/header*` event (`EpochHeader.messagePrefix`/`messageSuffix`), so `deriveMessages()` stays untouched and the request stays reconstructable. Cost model: contributions ride the request's uncached tail and are re-paid at full price on every request they appear in — put session-frozen content in `before` (cacheable prefix; a mid-session change busts the cache for everything after it), route low-frequency change notices through `agent.inject()` instead (paid once, prefix-cached thereafter), and reserve `after` for small, frequently refreshed state snapshots - `agent/step-result` — post-process the assembled assistant message before tool dispatch (validates what the log records) - `agent/turn-continuation` — override the continue/stop decision via `ContinuationDecision` = `{action:'stop'}` or `{action:'continue', reason?}` (a `continue` `reason` is recorded as next-step steering in the same turn — the typed `/goal` pattern). Force-continue `/loop`, force-stop budget guard. diff --git a/packages/core/agent/src/types.ts b/packages/core/agent/src/types.ts index 61871f5ad4..c35fc0d84e 100644 --- a/packages/core/agent/src/types.ts +++ b/packages/core/agent/src/types.ts @@ -17,7 +17,7 @@ * consumer that wants the live transcript subscribes here. * - **`agent/*`** (this module) — the LIVE runtime surface. Always carries the * live `Agent`. Two shapes: INTERCEPTION seams (the `agent/prompt-submit`/ - * `agent/request`/`agent/request-messages`/`agent/step-result`/ + * `agent/request`/`agent/request-advice`/`agent/step-result`/ * `agent/turn-continuation` waterfalls and * the serial `agent/pre-step`) that mutate/veto, and TRANSIENT emits * (`agent/status`, `agent/error`, `agent/created`/ @@ -156,34 +156,39 @@ export type ContinuationDecision = | { action: 'continue'; reason?: HookContext } /** - * Request-ONLY messages an `agent/request-messages` waterfall listener - * contributes around the derived history of ONE LLM request: `before` messages - * precede the derived history in `GenerateOptions.messages`, `after` messages - * follow it. They are NOT session events — nothing here enters the session log - * as durable history, `Session.deriveMessages()` never returns them, and the - * next step recomputes them from scratch. The loop records the non-empty - * arrays on the request's `request/header*` event (`EpochHeader.messagePrefix` - * / `messageSuffix`), so the request stays reconstructable from the log (the - * reconstructability RFC). For content that must become durable conversation - * history, use the log channels instead: `agent.inject()`, steering, or - * prompt-submit `additionalContext`. + * The request-only ADVICE an `agent/request-advice` waterfall listener weaves + * around the derived history of ONE LLM request — advice in both senses: + * advisory content for the model, attached before/after the join point like + * AOP advice, never modifying the history itself. In + * `GenerateOptions.messages` the `before` messages sit in front of the ENTIRE + * derived history (directly after the provider's system slot) and the `after` + * messages follow its last message (the newest user prompt on a turn's first + * step, the previous step's tool results afterwards). Advice is NOT session + * state — nothing here enters the session log as durable history, + * `Session.deriveMessages()` never returns it, and the next step recomputes + * it from scratch. The loop records the non-empty arrays on the request's + * `request/header*` event (`EpochHeader.messagePrefix` / `messageSuffix`), so + * the request stays reconstructable from the log (the reconstructability + * RFC). For content that must become durable conversation history, use the + * log channels instead: `agent.inject()`, steering, or prompt-submit + * `additionalContext`. */ -export interface RequestMessages { - /** Messages placed before the derived history in the request. */ +export interface RequestAdvice { + /** Before-advice: messages placed ahead of the entire derived history. */ before: Message[] - /** Messages placed after the derived history in the request. */ + /** After-advice: messages placed after the derived history's last message. */ after: Message[] } /** - * Read-only facts about the request an `agent/request-messages` listener is + * Read-only facts about the request an `agent/request-advice` listener is * contributing to. Everything here is already fixed when the seam fires: the * step is open, the boundary snapshot is taken, and the system prompt is * assembled — a listener uses these to DECIDE what to contribute (e.g. render * a workspace-dependent reminder, or skip one already present in history), * never to mutate them. */ -export interface RequestMessagesContext { +export interface RequestAdviceContext { /** The rendered system prompt this request will carry. */ system: string /** The prompt assembly the system prompt was rendered from (sections + tools). */ @@ -412,7 +417,7 @@ declare module 'cordis' { * session log (the reconstructability RFC), so model-visible content * flows through the log channels — `inject()`, steering, prompt-submit * `additionalContext`, prompt sections via `system-prompt/assemble`, or - * header-logged request-only messages via {@link agent/request-messages} + * header-logged request-only messages via {@link agent/request-advice} * — never through request mutation, and the loop records whatever config * the request actually uses as a `request/header*` event before dispatch. * The step's messages are already snapshotted when this fires (the @@ -429,10 +434,11 @@ declare module 'cordis' { */ 'agent/request'(agent: Agent, turn: number, step: number, config: LlmCallConfig, next: () => Promise): Promise /** - * Waterfall: contribute request-ONLY messages around the derived history — - * a {@link RequestMessages} whose `before` messages precede the boundary - * snapshot in `GenerateOptions.messages` and whose `after` messages follow - * it. Fires once per step, inside the open step, after the + * Waterfall: weave request-ONLY advice around the derived history — a + * {@link RequestAdvice} whose `before` messages sit in front of the + * ENTIRE boundary snapshot in `GenerateOptions.messages` and whose + * `after` messages follow its last message. Fires once per step, inside + * the open step, after the * {@link agent/request} config waterfall and before the loop logs the * request header. This is the seam for per-request advisory context the * model must see NOW but that must NOT become durable history (a skills @@ -443,13 +449,13 @@ declare module 'cordis' { * reconstructable from the log. * * The seed is frozen and empty; a contributing listener returns a NEW - * {@link RequestMessages} extending `await next()` (spread its arrays — + * {@link RequestAdvice} extending `await next()` (spread its arrays — * never mutate them), so contributions compose across plugins in * registration order. The boundary snapshot is already taken when this * fires: a `session.append`/`inject()` from a listener here lands in the * log but joins the NEXT request — contribute through the returned value, * not the session. Call `next()` to delegate, or return a - * {@link RequestMessages} without it to short-circuit. + * {@link RequestAdvice} without it to short-circuit. * * Pick the channel by change frequency (the cost model): a contribution * rides the request's uncached tail, re-tokenized at full price on EVERY @@ -464,11 +470,11 @@ declare module 'cordis' { * @param agent - the agent making the model call. * @param turn - the open turn number. * @param step - the step whose request this is. - * @param messages - the frozen empty seed; return an extended replacement to contribute. - * @param context - read-only request facts ({@link RequestMessagesContext}). + * @param advice - the frozen empty seed; return an extended replacement to contribute. + * @param context - read-only request facts ({@link RequestAdviceContext}). * @mode waterfall */ - 'agent/request-messages'(agent: Agent, turn: number, step: number, messages: RequestMessages, context: RequestMessagesContext, next: () => Promise): Promise + 'agent/request-advice'(agent: Agent, turn: number, step: number, advice: RequestAdvice, context: RequestAdviceContext, next: () => Promise): Promise /** * Waterfall: post-process the assembled assistant {@link Message} before * tool dispatch (validation, content rewriting, …). diff --git a/packages/core/session/README.md b/packages/core/session/README.md index 7fa16d0f3d..f032874cbe 100644 --- a/packages/core/session/README.md +++ b/packages/core/session/README.md @@ -51,7 +51,7 @@ Plain class (not a Cordis Service). Create via `ctx.sessions.create()`. ### Request-header reconstruction (`request-header.ts`) -The `request/header` (full `EpochHeader` snapshot with a `RequestHeaderReason`) and `request/header-delta` (system line-trim / name-keyed tools delta / whole config / whole request-only message arrays) events make the request envelope logged session state, so every conversation request is a pure function of the log. The pure trio reconstructs it: `foldRequestHeader(events)` folds a log (or any prefix) into the header in force; `diffHeader(prev, next)` encodes a change (undefined when equal); `applyHeaderDelta(prev, delta)` replays one. Writer contract: every logged delta is round-trip-verified (`apply(prev, delta)` deep-equals the new header) with a `'fallback'` snapshot when the encoding cannot express the change (a pure tool reordering), so folding never needs error recovery on a well-formed log. `canonicalHeader` pins the one representation of absence (empty system/tools/messagePrefix/messageSuffix ≡ absent fields; a delta's EMPTY message array encodes the transition back to absence). `EpochHeader.messagePrefix`/`messageSuffix` are the durable record of the `agent/request-messages` waterfall's request-only contributions — the request is `messagePrefix + derived history + messageSuffix`, and `deriveMessages()` never returns them. +The `request/header` (full `EpochHeader` snapshot with a `RequestHeaderReason`) and `request/header-delta` (system line-trim / name-keyed tools delta / whole config / whole request-only message arrays) events make the request envelope logged session state, so every conversation request is a pure function of the log. The pure trio reconstructs it: `foldRequestHeader(events)` folds a log (or any prefix) into the header in force; `diffHeader(prev, next)` encodes a change (undefined when equal); `applyHeaderDelta(prev, delta)` replays one. Writer contract: every logged delta is round-trip-verified (`apply(prev, delta)` deep-equals the new header) with a `'fallback'` snapshot when the encoding cannot express the change (a pure tool reordering), so folding never needs error recovery on a well-formed log. `canonicalHeader` pins the one representation of absence (empty system/tools/messagePrefix/messageSuffix ≡ absent fields; a delta's EMPTY message array encodes the transition back to absence). `EpochHeader.messagePrefix`/`messageSuffix` are the durable record of the `agent/request-advice` waterfall's request-only contributions — the request is `messagePrefix + derived history + messageSuffix`, and `deriveMessages()` never returns them. ### Session event vocabulary (`types.ts`) diff --git a/packages/core/session/src/types.ts b/packages/core/session/src/types.ts index 052be532bb..75fc84d9a0 100644 --- a/packages/core/session/src/types.ts +++ b/packages/core/session/src/types.ts @@ -203,7 +203,7 @@ export interface EpochHeader { tools?: ToolSchema[] /** * Request-only messages sent BEFORE the derived history (the - * `agent/request-messages` waterfall's `before` contributions). Not session + * `agent/request-advice` waterfall's `before` contributions). Not session * history — `deriveMessages()` never returns them — so the header is their * only durable record; absent when the request carried none. */ diff --git a/packages/support/invariants/src/index.ts b/packages/support/invariants/src/index.ts index 024838ea4c..216049da09 100644 --- a/packages/support/invariants/src/index.ts +++ b/packages/support/invariants/src/index.ts @@ -368,7 +368,7 @@ export function apply(ctx: Context, config: Config = {}): void { // be EXACTLY what the session log reconstructs: // // - messages: the folded header's request-only messages (messagePrefix / - // messageSuffix — the `agent/request-messages` contributions, logged on + // messageSuffix — the `agent/request-advice` contributions, logged on // the header because no session event carries them) framing the // derivation over the log prefix strictly before the in-flight step's // `step/start` (the reconstruction boundary). The derivation is compared diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index 7291bee4ca..3f8d0b8bb5 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -15,8 +15,8 @@ { "doc": "docs/core-data-structures/core.md", "symbol": "PromptDecision", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "ContinuationDecision", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "SessionStartSource", "source": "packages/core/agent/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "RequestMessages", "source": "packages/core/agent/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "RequestMessagesContext", "source": "packages/core/agent/src/types.ts" }, + { "doc": "docs/core-data-structures/core.md", "symbol": "RequestAdvice", "source": "packages/core/agent/src/types.ts" }, + { "doc": "docs/core-data-structures/core.md", "symbol": "RequestAdviceContext", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "StreamChunk", "source": "packages/llm/llm/src/types.ts" }, { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "TokenUsage", "source": "packages/llm/llm/src/types.ts" }, From 8190016e2b099973749a0ccc2153cc6552dff2c5 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Wed, 8 Jul 2026 10:06:07 +0800 Subject: [PATCH 049/232] feat(timeout): add tools/execute seam + tool-timeout policy plugin Model-facing tool-call budgets were tangled into each capability's schema (bash timeoutMs, web_fetch timeout_ms) with no shared home. Add a tools/execute around-dispatch waterfall to dsh-tools whose base next() is the dispatch-with-normalization thunk, and a new @deepseek-ai/dsh-timeout-policy plugin (packages/timeout/) that arms a per-tool deadline on exec.signal and returns a structured TOOL_TIMEOUT when it wins. Migrate web_fetch (drop the model-facing timeout_ms) and web_search onto it; the fetch provider keeps its timeout only as a resource backstop for direct callers. bash and hook command execution keep BASH_TIMEOUT unchanged. Named the plugin timeout-policy (not the RFC's tool-timeout) so it does not trip the gen-tool-catalog packages/*/tool-* completeness guard, and replace exec.signal by in-place mutation before next() since cordis waterfall next() ignores passed arguments. RFC moved to implemented/ recording both deviations. --- docs/architecture.md | 2 +- docs/cordis-catalog/events.md | 18 +- docs/cordis-catalog/services.md | 4 +- docs/event-producer-consumer.md | 7 +- docs/module-graph.md | 7 + docs/rfc/INDEX.md | 1 + .../2026-07-07-tool-call-timeout-policy.md | 111 ++++++++ docs/tool-catalog/tools.md | 4 - docs/tool-execution-pipeline.md | 11 +- packages/README.md | 1 + packages/core/tools/README.md | 7 +- packages/core/tools/src/index.ts | 104 +++++--- packages/core/tools/tests/tools.spec.ts | 142 +++++++++++ packages/timeout/README.md | 9 + packages/timeout/timeout-policy/README.md | 46 ++++ packages/timeout/timeout-policy/package.json | 39 +++ packages/timeout/timeout-policy/src/index.ts | 137 ++++++++++ .../tests/timeout-policy.spec.ts | 241 ++++++++++++++++++ packages/timeout/timeout-policy/tsconfig.json | 16 ++ packages/web/tool-web/README.md | 4 +- packages/web/tool-web/package.json | 1 + packages/web/tool-web/src/fetch.ts | 18 +- .../web/tool-web/tests/integration.spec.ts | 79 +++++- packages/web/tool-web/tests/tool-web.spec.ts | 33 ++- packages/web/tool-web/tsconfig.json | 1 + packages/web/web-fetch-local/README.md | 8 +- pnpm-lock.yaml | 22 ++ scripts/gen-doc-graphs.ts | 11 +- scripts/gen-module-graph.ts | 1 + tsconfig.base.json | 1 + tsconfig.build.json | 1 + tsconfig.json | 1 + 32 files changed, 1004 insertions(+), 84 deletions(-) create mode 100644 docs/rfc/implemented/architecture/2026-07-07-tool-call-timeout-policy.md create mode 100644 packages/timeout/README.md create mode 100644 packages/timeout/timeout-policy/README.md create mode 100644 packages/timeout/timeout-policy/package.json create mode 100644 packages/timeout/timeout-policy/src/index.ts create mode 100644 packages/timeout/timeout-policy/tests/timeout-policy.spec.ts create mode 100644 packages/timeout/timeout-policy/tsconfig.json diff --git a/docs/architecture.md b/docs/architecture.md index ff51688513..d7bb7c48e8 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -78,7 +78,7 @@ forever: 'assistant/message' each tool call: 'tool/call' - tools/pre-execute -> dispatch -> tools/post-execute + tools/pre-execute -> tools/execute -> tools/post-execute 'tool/result' append post-tool context and steering 'step/end' diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 753cf8f4d0..75f704b4a8 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -307,11 +307,23 @@ A tool was registered or unregistered (the available tool set changed). 'tools/change'(): void ``` +Source: [`packages/core/tools/src/index.ts:108`](../../packages/core/tools/src/index.ts) + +### `tools/execute` — waterfall + +Around-dispatch waterfall wrapping the registry's core tool dispatch, between the `tools/pre-execute` gate and the `tools/post-execute` seam. A listener receives `(exec, next)`: call `next()` to delegate to dispatch (returning its ToolExecutionResult, optionally wrapped), or return a replacement result without calling `next()` to short-circuit dispatch. The base `next()` IS the dispatch-with-normalization thunk — a thrown tool (or unknown tool) is already normalized to an `isError` result by the time a listener's `await next()` returns, so a wrapper never sees a raw throw from the tool body. This is the seam a timeout/retry/metrics plugin wraps: it can mutate `exec` (e.g. replace `exec.signal` with a per-call deadline) BEFORE `next()` and inspect the result AFTER. (Cordis `next()` ignores any passed arguments and re-invokes downstream with the shared payload, so a wrapper mutates `exec` in place rather than passing a new object to `next()`.) Multiple listeners compose by registration order — an outer one wraps the inner ones plus dispatch. + +```ts cordis-catalog +'tools/execute'(this: ToolRegistry, exec: ToolExecution, next: () => Promise): Promise +``` + +Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) + Source: [`packages/core/tools/src/index.ts:87`](../../packages/core/tools/src/index.ts) ### `tools/post-execute` — waterfall -Waterfall AFTER a tool runs — where hook plugins inspect the result and accept it (optionally REPLACING the model-facing content, and/or attaching `additionalContext` for the next request) or block it with corrective `feedback` (Claude Code's `PostToolUse`). Listeners receive `(exec, result, next)`: call `next()` to delegate to the default (accept unchanged), or return a PostToolDecision to override. The core tool dispatch sits between the two waterfalls as plain code, all inside `execute`'s outer try/catch (and the tool body keeps its own inner try/catch, so a thrown tool still reaches `post-execute` as an `isError` result). +Waterfall AFTER a tool runs — where hook plugins inspect the result and accept it (optionally REPLACING the model-facing content, and/or attaching `additionalContext` for the next request) or block it with corrective `feedback` (Claude Code's `PostToolUse`). Listeners receive `(exec, result, next)`: call `next()` to delegate to the default (accept unchanged), or return a PostToolDecision to override. Core tool dispatch runs earlier as the base `next()` of the `tools/execute` waterfall, all inside `execute`'s outer try/catch (and the tool body keeps its own inner try/catch, so a thrown tool still reaches `post-execute` as an `isError` result). ```ts cordis-catalog 'tools/post-execute'(this: ToolRegistry, exec: ToolExecution, result: ToolExecutionResult, next: () => Promise): Promise @@ -319,7 +331,7 @@ Waterfall AFTER a tool runs — where hook plugins inspect the result and accept Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:82`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:103`](../../packages/core/tools/src/index.ts) ### `tools/pre-execute` — waterfall @@ -331,7 +343,7 @@ Waterfall BEFORE a tool runs — the gate where sandbox, permission, and hook pl Types: [ToolExecution](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:66`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:67`](../../packages/core/tools/src/index.ts) ## Inherited events (cordis core + loader/hmr/timer) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 0221946118..85f2437b16 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -193,7 +193,7 @@ Source: [`packages/core/system-prompt/src/index.ts:198`](../../packages/core/sys ## `ctx.tools` — `ToolRegistry` -Tool registry (`ctx.tools`): tool plugins register definitions; the agent loop executes calls through the `tools/pre-execute` → dispatch → `tools/post-execute` pipeline. The registry contributes its schemas into the system-prompt assembly. +Tool registry (`ctx.tools`): tool plugins register definitions; the agent loop executes calls through the `tools/pre-execute` → `tools/execute` → `tools/post-execute` pipeline. The registry contributes its schemas into the system-prompt assembly. ```ts cordis-catalog register(definition: ToolDefinition): () => void @@ -204,7 +204,7 @@ async execute(exec: ToolExecution): Promise Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:268`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:289`](../../packages/core/tools/src/index.ts) ## `ctx.web` — `WebService` diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 24a2793826..31b6b07a8b 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -31,8 +31,9 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:91`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:38`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | | `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:44`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | -| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:87`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | -| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:82`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:66`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:108`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | +| `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:87`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`timeout-policy`](../packages/timeout/timeout-policy) | +| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:103`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:67`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | Maintenance mode: hybrid generated: Cordis event declarations and most producer/listener edges are AST-scanned; dynamic dispatch sites are classified in `scripts/gen-doc-graphs.ts`. diff --git a/docs/module-graph.md b/docs/module-graph.md index a4e729484d..14f0908a3d 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -55,6 +55,9 @@ flowchart TD pkg_web_search_exa["web-search-exa"] pkg_web_search_perplexity["web-search-perplexity"] end + subgraph group_timeout["packages/timeout"] + pkg_timeout_policy["timeout-policy"] + end subgraph group_todo["packages/todo"] pkg_tool_todo["tool-todo"] end @@ -146,6 +149,9 @@ flowchart TD pkg_tool_web --> pkg_system_prompt pkg_tool_web --> pkg_tools pkg_tool_web --> pkg_web + pkg_timeout_policy --> pkg_llm + pkg_timeout_policy --> pkg_timeout + pkg_timeout_policy --> pkg_tools pkg_tool_todo --> pkg_agent pkg_tool_todo --> pkg_session pkg_tool_todo --> pkg_tools @@ -240,6 +246,7 @@ flowchart TD | [`tool-fs`](../packages/fs/tool-fs) | `fs` | [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`subagent`](../packages/subagent/subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`tools`](../packages/core/tools) | | [`tool-web`](../packages/web/tool-web) | `web` | [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`web`](../packages/web/web) | +| [`timeout-policy`](../packages/timeout/timeout-policy) | `timeout` | [`llm`](../packages/llm/llm), [`timeout`](../packages/util/timeout), [`tools`](../packages/core/tools) | | [`tool-todo`](../packages/todo/tool-todo) | `todo` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`hooks-codex`](../packages/hooks/hooks-codex) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools) | diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index b88c40e748..2dcf9d8ba3 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -120,6 +120,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [Every LLM request is reconstructable from the session log](implemented/architecture/2026-07-05-reconstructable-requests.md) | 2026-07-05 | | [Subagent provider-lifecycle events — `subagent/provider-added` / `subagent/provider-removed`](implemented/architecture/2026-07-05-subagent-provider-lifecycle-events.md) | 2026-07-05 | | [A shared timeout/deadline primitive, with hard-kill left to each capability](implemented/architecture/2026-07-06-timeout-deadline-library.md) | 2026-07-06 | +| [Tool-call timeout policy as a plugin](implemented/architecture/2026-07-07-tool-call-timeout-policy.md) | 2026-07-07 | ### Process diff --git a/docs/rfc/implemented/architecture/2026-07-07-tool-call-timeout-policy.md b/docs/rfc/implemented/architecture/2026-07-07-tool-call-timeout-policy.md new file mode 100644 index 0000000000..edde6aca43 --- /dev/null +++ b/docs/rfc/implemented/architecture/2026-07-07-tool-call-timeout-policy.md @@ -0,0 +1,111 @@ +# RFC: Tool-call timeout policy as a plugin + +Status: implemented + +## Problem + +The [timeout/deadline RFC](2026-07-06-timeout-deadline-library.md) extracted the timing-and-classification primitive into `@deepseek-ai/dsh-timeout`, but timeout policy was still attached to individual capabilities and model-facing schemas. `bash` exposed `timeoutMs`; `web_fetch` exposed `timeout_ms`; `web_search` had no model-facing timeout even though providers already honor `exec.signal`; a future grep/glob tool would either import the timeout library directly or invent its own timeout policy. That is the wrong authoring shape for a plugin SDK: a tool author should normally forward `exec.signal` to the implementation it calls, and deployment policy should decide the budget. + +At the same time, not every timeout in the repo is a model-facing tool-call budget. Hooks execute command hooks by calling `ctx.bash` directly, not through `ctx.tools.execute()`, and the `bash` model tool multiplexes foreground execution, background start, background polling, and hook reuse through the same backend. Moving every timeout into a tool plugin in one step would conflate those paths and risk breaking hook timeout semantics. + +## Decision + +Tool-call timeout is a policy that applies only to model-facing tool execution, in three parts: + +- `@deepseek-ai/dsh-timeout` remains the shared library that owns `deadline()` and `timeoutOf()`. +- `@deepseek-ai/dsh-tools` has an around-dispatch waterfall, `tools/execute`, between `tools/pre-execute` and `tools/post-execute`. +- `@deepseek-ai/dsh-timeout-policy` reads deployment config and wraps configured tool calls by deriving a new `exec.signal`. + +The execution pipeline is: + +```text +ctx.tools.execute(exec) + -> tools/pre-execute + -> tools/execute + -> registry dispatch (the base next()) + -> tool.execute(args, exec) + -> thrown tool errors normalize to ToolExecutionResult + -> tools/post-execute +``` + +The default behavior is conservative: an unconfigured tool receives no `TOOL_TIMEOUT` deadline from the plugin. + +### The `tools/execute` around seam + +`@deepseek-ai/dsh-tools` declares a `tools/execute` waterfall whose base `next()` is the dispatch-with-normalization thunk — the same inner `try`/`catch` that turns a thrown tool (or unknown tool) into an `isError` `ToolExecutionResult`. A listener receives `(exec, next)`: it calls `next()` to delegate to dispatch (returning its result, optionally wrapped) or returns a replacement result to short-circuit dispatch. The whole pipeline still sits inside `execute`'s outer try/catch, so a throwing listener becomes an `isError` result, never a turn failure. + +That the catch is the base `next` — not something outside the waterfall — is load-bearing: when a provider sees the timeout signal and throws its own upstream-abort error, registry dispatch first converts it to a normal error result, and only then can `timeout-policy` replace the final result with `TOOL_TIMEOUT`. + +### The `timeout-policy` plugin + +The plugin is `@deepseek-ai/dsh-timeout-policy`, a function/namespace plugin (`name` / `Config` / `apply`) in the `packages/timeout/` group. Its config is per tool, with no global default and no model override: + +```yaml +- id: timeout-policy + name: '@deepseek-ai/dsh-timeout-policy' + config: + tools: + web_fetch: + timeoutMs: 30000 + web_search: + timeoutMs: 30000 +``` + +`timeoutMs` is required for every configured tool and must be positive finite (validated at `apply`). For a configured tool the listener arms `deadline(exec.signal, timeoutMs, 'TOOL_TIMEOUT')`, swaps the derived signal onto `exec` for the downstream dispatch, restores the caller's own signal afterward, and returns a structured `TOOL_TIMEOUT` result when `timeoutOf(d.signal, 'TOOL_TIMEOUT')` matches. An unconfigured tool delegates unchanged. + +Signal replacement is by **in-place mutation of `exec.signal`**, not by passing a new object to `next()`. Cordis's waterfall `next()` ignores any arguments handed to it and re-invokes downstream listeners with the shared payload array (`vendor/cordis/src/events.ts`), so the documented cordis idiom — mutate the shared object, then delegate — is the only mechanism that reaches dispatch. The plugin restores `exec.signal` to the caller's original in a `finally` so `tools/post-execute` never sees this plugin's (possibly already-aborted) deadline signal. + +`timeout-policy` owns both uses of the `TOOL_TIMEOUT` code: the internal deadline code passed to `deadline()`/`timeoutOf()` (scoped so a nested outer deadline reads as an ordinary cancel) and the structured tool-result error code. Its replacement result is: + +```ts ignore-check +function toolTimeoutResult(callId: CallId, timeoutMs: number): ToolExecutionResult { + return { + callId, + content: [{ type: 'text', text: `Error: tool call timed out after ${timeoutMs}ms` }], + isError: true, + error: { name: 'ToolTimeoutError', code: 'TOOL_TIMEOUT' }, + } +} +``` + +This is a cooperative deadline. It does not kill arbitrary work by racing the tool promise; the tool or the capability it calls must honor `exec.signal` and reach quiescence. "Configured" therefore MEANS "cooperative with `exec.signal`", which the plugin README states as its contract. + +No new session event is needed for reconstructability: `TOOL_TIMEOUT` is the final model-facing `tool/result` for that call, so the existing session log already records the content and structured `{ name, code }` error the next model request sees. + +### Existing tool adaptation + +`web_fetch` and `web_search` are migrated. `dsh-tool-web` keeps ownership of their model-facing schemas, and those schemas expose no timeout knob: `web_fetch` dropped its `timeout_ms` parameter to match the reference-agent shape, and `web_search` stays query-only. The tool bodies do not import `@deepseek-ai/dsh-timeout`; they forward `exec.signal` to `ctx.web`. + +`dsh-web-fetch-local` keeps a provider-level timeout (`timeoutMs`/`maxTimeoutMs`) as a large resource backstop for direct `ctx.web.fetch()` callers and misconfigured deployments; it owns no model-facing timeout. When a `TOOL_TIMEOUT` signal reaches the fetch provider first, provider-scoped classification treats it as upstream `WEB_ABORTED`, and the outer `tools/execute` wrapper replaces the final tool result with `TOOL_TIMEOUT`. A shipped web-tool deployment configures the provider backstop above the `timeout-policy` budget so the tool-call policy normally wins for model calls. + +`bash` stays on the current backend timeout path. `dsh-tool-bash` continues to expose `timeoutMs` and `run_in_background`; `dsh-bash-local` continues to use `@deepseek-ai/dsh-timeout` for `BASH_TIMEOUT`; hook bridges continue to call `runHook()` and pass `timeoutMs` through `ctx.bash`. This keeps foreground/background/hook behavior stable. + +`read`, `write`, `edit`, `todo_write`, `bash_output`, and `bash_kill` do not opt into tool-call timeout: they are local filesystem or short registry/session operations where a deadline would be best-effort only or unnecessary. + +A future model-facing grep/glob tool can be implemented on top of `ctx.bash` without importing `@deepseek-ai/dsh-timeout`: it forwards `exec.signal` to `ctx.bash`, and a deployment configures `timeout-policy` for its budget. If bash-local's backend timeout becomes a problem for such a tool, the bash seam can later add a caller-owned-deadline mode; that is outside this cut. + +## Alternatives considered + +**Name the plugin `tool-timeout`.** The literal RFC name matched the `gen-tool-catalog` completeness guard's `packages/*/tool-*` glob, which requires every match to register a model-facing tool. This plugin registers none — it is a `tools/execute` wrapper — so a `tool-*` name would either fail `verify-tool-catalog` or force a misleading boot entry. The package is `@deepseek-ai/dsh-timeout-policy` in a new `packages/timeout/` group; the cordis.yml `id` can still be `timeout-policy`. + +**Keep per-tool timeout handling only.** This was the shape for `bash` and `web_fetch`, and it matches Claude Code and Codex for shell commands. It loses for web-style tools because every new timeout-capable tool must choose validation, cap semantics, docs, snapshots, and classification. The plugin centralizes policy and classification while leaving each tool's schema focused on business input. + +**Move all timeout policy out of bash-local immediately.** Cleaner long-term — bash-local would become a pure subprocess executor and all callers would own their deadlines. It loses as the first step because hooks call `ctx.bash` directly and the bash model tool has foreground/background semantics that are not the same tool-call lifetime. Keeping `BASH_TIMEOUT` preserves those paths while tool-call timeout proves itself on simpler tools. + +**Use a global default budget for every tool.** Convenient, but it surprises tool authors: any tool that accidentally runs longer than the global budget would start failing once the plugin loads. Per-tool config makes adoption deliberate. + +**Expose a model-facing `timeout_ms` override.** Claude Code's `WebFetch`/`WebSearch` and Codex's web tools keep timeout out of the model-call shape. A model override would make timeout part of prompt semantics and force schema/argument-stripping rules into `timeout-policy`. Web timeout stays deployment policy only. + +**Let `timeout-policy` match tool arguments itself.** A rule engine such as "disable timeout when `bash.run_in_background` is true" would make the policy plugin know tool-specific argument semantics. Avoided by not migrating bash to tool-call timeout. + +**Use `tools/pre-execute` plus `tools/post-execute` instead of a new around seam.** A pre listener could arm a deadline and mutate `exec.signal`; a post listener could classify and replace. That loses because the deadline lifetime would cross two independent waterfalls: a call-id map, cleanup on every pre-deny/tool-throw/post-throw/dispose path, and ordering rules with every other listener. `tools/pre-execute` is also the allow/deny gate, not an execution wrapper. `tools/execute` gives the timeout one lexical scope: arm, delegate, classify, dispose. + +**Use `Promise.race` to enforce timeouts for non-cooperative tools.** Rejected for the same reason as the timeout-library RFC: it returns control to the caller while the underlying process, fetch, or provider operation may still be running. The plugin only sends a signal; termination remains the implementation's responsibility. + +## Consequences + +- `@deepseek-ai/dsh-tools` gains an around-dispatch surface after the interception seams deliberately split pre/post tool hooks. Its contract is narrow — wrap registry dispatch, not replace the pre-gate or post-result policy — and the base `next()` is dispatch-with-normalization so a wrapper never sees a raw tool throw. +- Multiple `tools/execute` listeners compose by ordinary Cordis waterfall order: a listener that calls `next()` wraps downstream listeners plus dispatch; one that returns without `next()` short-circuits them. A deployment combining timeout with a future retry/sandbox/metrics wrapper chooses semantics by registration order ("timeout covers the whole retry" vs "timeout covers each attempt"). +- Config-only opt-in is a deliberate misconfiguration risk: a deployment can configure a timeout for a tool that does not honor `exec.signal`, and that tool will not stop on timeout. The plugin contract states that "configured" means cooperative; the web tools prove the pattern on tools that already forward the signal. +- During the transition `bash` and the migrated web tools use different timeout paths on purpose: `TOOL_TIMEOUT` is the model-facing tool-call budget, while `BASH_TIMEOUT` remains the bash backend timeout used by bash and hooks. +- Deviation from the literal proposal, recorded per the implemented-RFC rule: the plugin package is `@deepseek-ai/dsh-timeout-policy` (not `tool-timeout`), and signal replacement is in-place `exec.signal` mutation before `next()` (not `next({ ...exec, signal })`, which cordis ignores). Both are described in `## Decision` above. diff --git a/docs/tool-catalog/tools.md b/docs/tool-catalog/tools.md index 17b4295eda..9bc32ffb4c 100644 --- a/docs/tool-catalog/tools.md +++ b/docs/tool-catalog/tools.md @@ -289,10 +289,6 @@ Fetch the content of a specific HTTP(S) URL and return it decoded to text. "url": { "type": "string", "description": "The HTTP(S) URL to fetch." - }, - "timeout_ms": { - "type": "number", - "description": "Optional fetch timeout in milliseconds (capped by the provider)." } }, "required": [ diff --git a/docs/tool-execution-pipeline.md b/docs/tool-execution-pipeline.md index db50a3beec..c28c934ab2 100644 --- a/docs/tool-execution-pipeline.md +++ b/docs/tool-execution-pipeline.md @@ -3,7 +3,7 @@ # Tool Execution Pipeline -This graph shows where policy, hooks, sandboxing, filesystem guards, result rewriting, and UI rendering fit without changing the loop. The key extension points are the `tools/pre-execute` and `tools/post-execute` waterfalls. +This graph shows where policy, hooks, sandboxing, filesystem guards, result rewriting, and UI rendering fit without changing the loop. The key extension points are the `tools/pre-execute`, `tools/execute`, and `tools/post-execute` waterfalls. ```mermaid flowchart TD @@ -12,6 +12,7 @@ flowchart TD presentCall["UI pending card
presentCall(args)"] pre["tools/pre-execute waterfall
hooks, permission, sandbox"] denied["deny or ask
tool body skipped"] + around["tools/execute waterfall
timeout, retry, metrics (around dispatch)"] toolBody["Registered tool execute() body"] fsGate["fs/write-intent or fs/edit-intent
tool-fs mutations only"] owned["Tool-owned session events
todo/write, fs/observed, hook/invoked, hook/result"] @@ -22,18 +23,20 @@ flowchart TD model --> toolCall toolCall --> presentCall toolCall --> pre - pre -->|allow| toolBody + pre -->|allow| around + around --> toolBody pre -->|deny or ask| denied denied --> post toolBody --> fsGate fsGate --> toolBody toolBody --> owned - toolBody --> post + toolBody --> around + around --> post post --> context post --> toolResult toolResult --> presentResult ``` -Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate, while hook bridges and future permission prompts live on the generic tool waterfalls. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service. +Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate; hook bridges and future permission prompts live on the generic pre/post tool waterfalls; and around-dispatch concerns like the tool-call timeout policy (`@deepseek-ai/dsh-timeout-policy`) wrap core dispatch on `tools/execute`. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service. Maintenance mode: curated Mermaid flow; exact tool schemas and event signatures live in generated catalogs. diff --git a/packages/README.md b/packages/README.md index f07e0d5a36..333dff991f 100644 --- a/packages/README.md +++ b/packages/README.md @@ -15,6 +15,7 @@ Packages are grouped by modular role at `packages///`. The group dir | [`compact/`](compact/README.md) | Compaction capability family: the abstract seam + a basic backend (tool deferred) | Product — stable surface | | [`subagent/`](subagent/README.md) | Subagent capability family: the provider-registry seam and the model-facing delegation tool | Product — stable surface | | [`web/`](web/README.md) | Web capability family: the abstract seam, search/fetch provider impls, and the model-facing web tools | Product — stable surface | +| [`timeout/`](timeout/README.md) | Tool-call timeout policy: a `tools/execute` wrapper arming a per-tool deadline on `exec.signal` | Product — stable surface | | [`todo/`](todo/README.md) | Todo/planning family: the model-facing `todo_write` tool (whole-list task tracking on the session log) | Product — stable surface | | [`hooks/`](hooks/README.md) | Hook bridges + the shared Claude Code / Codex wire-protocol library | Product — stable surface | | [`session-persistence/`](session-persistence/README.md) | Persistence capability family: the seam + JSONL/SQLite backends | Product — stable surface | diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index 65039aea58..2f19db0b3e 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -1,6 +1,6 @@ # dsh-tools -Tool registry and execution pipeline. Tool plugins register their schemas and executors; the agent loop executes each call through `tools/pre-execute` (the allow/deny gate) → core dispatch → `tools/post-execute` (inspect/replace the result, attach context). +Tool registry and execution pipeline. Tool plugins register their schemas and executors; the agent loop executes each call through `tools/pre-execute` (the allow/deny gate) → `tools/execute` (an around-dispatch wrapper for timeout/retry/metrics plugins) → `tools/post-execute` (inspect/replace the result, attach context). ## Service: `ToolRegistry` (ctx key: `tools`) @@ -9,7 +9,7 @@ Tool registry and execution pipeline. Tool plugins register their schemas and ex - `ctx.tools.register(definition: ToolDefinition): () => void` Register a tool. Disposed with the calling fiber. - `ctx.tools.get(name: string): ToolDefinition | undefined` - `ctx.tools.schemas(): ToolSchema[]` Schemas of all registered tools (without the `execute` functions). The shipped tools' schemas are catalogued in [docs/tool-catalog/tools.md](../../../docs/tool-catalog/tools.md), generated by booting each tool plugin and harvesting this method (see [the tool-schema-catalog RFC](../../../docs/rfc/implemented/process/2026-07-02-tool-schema-catalog.md)). -- `ctx.tools.execute(exec: ToolExecution): Promise` Execute one tool call through the `tools/pre-execute` → dispatch → `tools/post-execute` pipeline. +- `ctx.tools.execute(exec: ToolExecution): Promise` Execute one tool call through the `tools/pre-execute` → `tools/execute` → `tools/post-execute` pipeline. ### Injected services @@ -20,6 +20,7 @@ Tool registry and execution pipeline. Tool plugins register their schemas and ex | Event | Mode | Purpose | |---|---|---| | `tools/pre-execute` | waterfall | Allow/deny gate BEFORE a tool runs (sandbox, permission, hooks); returns `PreToolDecision` | +| `tools/execute` | waterfall | Around-dispatch wrapper (timeout, retry, metrics): `(exec, next)` → the dispatched `ToolExecutionResult`; `next()` is dispatch-with-normalization | | `tools/post-execute` | waterfall | Inspect/replace the result AFTER a tool runs, attach context; returns `PostToolDecision` | | `tools/change` | emit | A tool was registered or unregistered | @@ -35,7 +36,7 @@ Tool registry and execution pipeline. Tool plugins register their schemas and ex ### Extension points - Tool plugins call `ctx.tools.register()` — schemas flow into the assembly automatically. -- `tools/pre-execute` is the allow/deny gate (sandbox, permission, hooks): listeners receive `(exec, next)` and call `next()` to delegate to the default (allow) or return a `PreToolDecision` to short-circuit; a `deny`/`ask` skips dispatch and yields an `isError` result. `tools/post-execute` is the inspect/transform seam: `(exec, result, next)` → a `PostToolDecision` that can replace content, block with feedback, or attach `additionalContext`. Core dispatch sits between them as plain code; the tool body keeps its own try/catch so a thrown tool still reaches `post-execute` as an `isError`. Both follow the typed-Decision idiom shared with the `agent/*` interception seams (see [`dsh-agent`](../agent/README.md)). +- `tools/pre-execute` is the allow/deny gate (sandbox, permission, hooks): listeners receive `(exec, next)` and call `next()` to delegate to the default (allow) or return a `PreToolDecision` to short-circuit; a `deny`/`ask` skips dispatch and yields an `isError` result. `tools/execute` is the around-dispatch seam (timeout, retry, metrics): listeners receive `(exec, next)` and call `next()` to delegate to core dispatch (returning its `ToolExecutionResult`, optionally wrapped), or return a replacement result to short-circuit dispatch; the base `next()` IS dispatch-with-normalization, so `await next()` already yields an `isError` result for a thrown/unknown tool (never a raw throw). A wrapper mutates `exec` in place before `next()` — e.g. replacing `exec.signal` with a per-call deadline — because cordis `next()` ignores passed arguments. `tools/post-execute` is the inspect/transform seam: `(exec, result, next)` → a `PostToolDecision` that can replace content, block with feedback, or attach `additionalContext`. Core dispatch is the base of the `tools/execute` waterfall; the tool body keeps its own try/catch so a thrown tool still reaches `post-execute` as an `isError`. All follow the typed-Decision idiom shared with the `agent/*` interception seams (see [`dsh-agent`](../agent/README.md)); `@deepseek-ai/dsh-timeout-policy` is the reference `tools/execute` wrapper. - MCP servers: one plugin per server, discover tools, call `ctx.tools.register()` with the server's schemas. ### Typed tool parameter schemas diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index dd0ed918db..34e37dfa5f 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -1,9 +1,10 @@ /** * Tool registry and execution pipeline. Plugins register tools; the registry * feeds schemas into the system prompt, and `execute()` dispatches each call - * through `tools/pre-execute` (the allow/deny gate) → core dispatch → - * `tools/post-execute` (inspect/replace the result, attach context) for - * sandbox, permission, and hook plugins to gate or transform a call. + * through `tools/pre-execute` (the allow/deny gate) → `tools/execute` (an + * around-dispatch wrapper for timeout/retry/metrics plugins) → `tools/post-execute` + * (inspect/replace the result, attach context) for sandbox, permission, and hook + * plugins to gate or transform a call. * * @module @deepseek-ai/dsh-tools */ @@ -64,17 +65,37 @@ declare module 'cordis' { * @mode waterfall */ 'tools/pre-execute'(this: ToolRegistry, exec: ToolExecution, next: () => Promise): Promise + /** + * Around-dispatch waterfall wrapping the registry's core tool dispatch, + * between the `tools/pre-execute` gate and the `tools/post-execute` seam. A + * listener receives `(exec, next)`: call `next()` to delegate to dispatch + * (returning its {@link ToolExecutionResult}, optionally wrapped), or return a + * replacement result without calling `next()` to short-circuit dispatch. The + * base `next()` IS the dispatch-with-normalization thunk — a thrown tool (or + * unknown tool) is already normalized to an `isError` result by the time a + * listener's `await next()` returns, so a wrapper never sees a raw throw from + * the tool body. This is the seam a timeout/retry/metrics plugin wraps: it can + * mutate `exec` (e.g. replace `exec.signal` with a per-call deadline) BEFORE + * `next()` and inspect the result AFTER. (Cordis `next()` ignores any passed + * arguments and re-invokes downstream with the shared payload, so a wrapper + * mutates `exec` in place rather than passing a new object to `next()`.) + * Multiple listeners compose by registration order — an outer one wraps the + * inner ones plus dispatch. + * @param exec - the allowed call about to dispatch (name, parsed arguments, caller agent, signal). + * @mode waterfall + */ + 'tools/execute'(this: ToolRegistry, exec: ToolExecution, next: () => Promise): Promise /** * Waterfall AFTER a tool runs — where hook plugins inspect the result and * accept it (optionally REPLACING the model-facing content, and/or attaching * `additionalContext` for the next request) or block it with corrective * `feedback` (Claude Code's `PostToolUse`). Listeners receive * `(exec, result, next)`: call `next()` to delegate to the default (accept - * unchanged), or return a {@link PostToolDecision} to override. The core tool - * dispatch sits between the two waterfalls as plain code, all inside - * `execute`'s outer try/catch (and the tool body keeps its own inner - * try/catch, so a thrown tool still reaches `post-execute` as an `isError` - * result). + * unchanged), or return a {@link PostToolDecision} to override. Core tool + * dispatch runs earlier as the base `next()` of the `tools/execute` + * waterfall, all inside `execute`'s outer try/catch (and the tool body keeps + * its own inner try/catch, so a thrown tool still reaches `post-execute` as an + * `isError` result). * @param exec - the call that just ran (name, parsed arguments, caller agent). * @param result - the dispatch outcome a listener may accept, replace, or block. * @mode waterfall @@ -261,7 +282,7 @@ function errorInfo(error: unknown): ToolErrorInfo | undefined { /** * Tool registry (`ctx.tools`): tool plugins register definitions; the agent - * loop executes calls through the `tools/pre-execute` → dispatch → + * loop executes calls through the `tools/pre-execute` → `tools/execute` → * `tools/post-execute` pipeline. The registry contributes its schemas into the * system-prompt assembly. */ @@ -335,18 +356,20 @@ export class ToolRegistry extends Service { } /** - * Execute one tool call through the `tools/pre-execute` → dispatch → - * `tools/post-execute` pipeline. The two waterfalls are the gate (allow/deny) - * and the inspect/transform seam; core dispatch sits between them as plain - * code. The whole thing is wrapped in one outer try/catch so a throwing - * listener (in either waterfall) becomes an `isError` result instead of - * failing the turn; the tool body ALSO keeps its own inner try/catch, so a - * thrown tool becomes an `isError` result that `post-execute` listeners can - * still inspect. If the tool is not registered, the result is an `isError` - * carrying a `UNKNOWN_TOOL` structured error. A thrown {@link HarnessError} - * surfaces its `{ name, code }` on the result. + * Execute one tool call through the `tools/pre-execute` → `tools/execute` + * (around dispatch) → `tools/post-execute` pipeline. `pre-execute` is the gate + * (allow/deny), `tools/execute` wraps core dispatch (a timeout/retry/metrics + * seam), and `post-execute` is the inspect/transform seam; core dispatch sits + * as the base `next()` of the `tools/execute` waterfall. The whole thing is + * wrapped in one outer try/catch so a throwing listener (in any waterfall) + * becomes an `isError` result instead of failing the turn; the tool body ALSO + * keeps its own inner try/catch, so a thrown tool becomes an `isError` result + * that `tools/execute` and `post-execute` listeners can still inspect. If the + * tool is not registered, the result is an `isError` carrying a `UNKNOWN_TOOL` + * structured error. A thrown {@link HarnessError} surfaces its `{ name, code }` + * on the result. * @param exec - the call to run (name, parsed arguments, caller agent, signal). - * @returns the final result after both waterfalls; failures resolve as + * @returns the final result after every waterfall; failures resolve as * `isError` results, never rejections. */ async execute(exec: ToolExecution): Promise { @@ -372,23 +395,30 @@ export class ToolRegistry extends Service { return await this.postExecute(exec, denied) } - // --- Core dispatch (plain code between the waterfalls). The tool body's - // own try/catch turns a throw into an isError result so post-execute can - // inspect it; an unknown tool routes through the same catch. --- - let result: ToolExecutionResult - try { - const tool = this.store.get(exec.name) - if (!tool) throw new ToolNotFoundError(exec.name) - // Normalize the two `execute` return shapes: a bare ContentBlock[] (no - // meta) or a { content, meta } object (a tool attaching a private - // presentation payload). An array IS the content; the object carries it. - const returned = await tool.execute(exec.arguments, exec) - const content = Array.isArray(returned) ? returned : returned.content - const meta = Array.isArray(returned) ? undefined : returned.meta - result = { callId: exec.callId, content, isError: false, ...meta !== undefined ? { meta } : {} } - } catch (error: unknown) { - result = toolErrorResult(exec.callId, error) - } + // --- Around-dispatch: tools/execute. The base `next` is the dispatch- + // with-normalization thunk — the tool body's own try/catch turns a throw + // into an isError result so a wrapper (and post-execute) can inspect it; + // an unknown tool routes through the same catch. A `tools/execute` listener + // (e.g. a timeout plugin) wraps this thunk: it may mutate `exec` before + // delegating and inspect the normalized result after. --- + const result = await this.ctx.waterfall( + this, 'tools/execute', exec, + async (): Promise => { + try { + const tool = this.store.get(exec.name) + if (!tool) throw new ToolNotFoundError(exec.name) + // Normalize the two `execute` return shapes: a bare ContentBlock[] (no + // meta) or a { content, meta } object (a tool attaching a private + // presentation payload). An array IS the content; the object carries it. + const returned = await tool.execute(exec.arguments, exec) + const content = Array.isArray(returned) ? returned : returned.content + const meta = Array.isArray(returned) ? undefined : returned.meta + return { callId: exec.callId, content, isError: false, ...meta !== undefined ? { meta } : {} } + } catch (error: unknown) { + return toolErrorResult(exec.callId, error) + } + }, + ) return await this.postExecute(exec, result) } catch (error: unknown) { diff --git a/packages/core/tools/tests/tools.spec.ts b/packages/core/tools/tests/tools.spec.ts index 09158b8398..5207915df8 100644 --- a/packages/core/tools/tests/tools.spec.ts +++ b/packages/core/tools/tests/tools.spec.ts @@ -272,6 +272,148 @@ describe('ToolRegistry', () => { expect(order).toEqual(['pre:before', 'pre:after', 'post:before', 'post:after']) }) + it('runs tools/execute after an allowed pre-execute, around dispatch, and before post-execute', async () => { + const ctx = await setup() + const order: string[] = [] + ctx.tools.register(defineTool({ + name: 'traced', + description: 'echo', + parameters: { text: { type: 'string' } }, + async execute(args) { + order.push('dispatch') + return [{ type: 'text' as const, text: args.text ?? '' }] + }, + })) + + ctx.on('tools/pre-execute', async (_exec, next) => { order.push('pre'); return next() }) + ctx.on('tools/execute', async (_exec, next) => { + order.push('execute:before') + const result = await next() + order.push('execute:after') + return result + }) + ctx.on('tools/post-execute', async (_exec, _result, next) => { order.push('post'); return next() }) + + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'traced', arguments: { text: 'hi' } }) + expect(result).toEqual({ callId: CallId('c1'), content: [{ type: 'text', text: 'hi' }], isError: false }) + // The around seam wraps dispatch; pre gates before it, post runs over its result. + expect(order).toEqual(['pre', 'execute:before', 'dispatch', 'execute:after', 'post']) + }) + + it('a pre-execute deny short-circuits before tools/execute (the seam never runs)', async () => { + const ctx = await setup() + ctx.tools.register(echoTool) + + let entered = false + ctx.on('tools/pre-execute', async (_exec, _next): Promise => ({ kind: 'deny', reason: 'nope' })) + ctx.on('tools/execute', async (_exec, next) => { entered = true; return next() }) + + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'echo', arguments: { text: 'hi' } }) + expect(result.isError).toBe(true) + expect(result.content[0]).toMatchObject({ text: 'Error: nope' }) + expect(entered).toBe(false) // a denied call never enters the around-dispatch seam + }) + + it('a thrown tool is normalized to an isError result BEFORE a tools/execute listener sees next()', async () => { + const ctx = await setup() + ctx.tools.register({ + ...echoTool, + name: 'boom', + async execute() { throw new HarnessError('kaboom', 'BOOM') }, + }) + + let seen: { isError: boolean; error?: unknown } | undefined + ctx.on('tools/execute', async (_exec, next) => { + const result = await next() + // The base next() IS dispatch-with-normalization: the wrapper sees the + // normalized isError result, never a raw throw from the tool body. + seen = { isError: result.isError, error: result.error } + return result + }) + + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'boom', arguments: {} }) + expect(seen).toEqual({ isError: true, error: { name: 'HarnessError', code: 'BOOM' } }) + expect(result.isError).toBe(true) + expect(result.content[0]).toMatchObject({ text: 'Error: kaboom' }) + }) + + it('a thrown tool normalized inside tools/execute still reaches post-execute', async () => { + const ctx = await setup() + ctx.tools.register({ + ...echoTool, + name: 'boom', + async execute() { throw new Error('exploded') }, + }) + + let postSaw: boolean | undefined + ctx.on('tools/execute', async (_exec, next) => next()) + ctx.on('tools/post-execute', async (_exec, result, next) => { + postSaw = result.isError + return next() + }) + + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'boom', arguments: {} }) + expect(postSaw).toBe(true) // the normalized isError still flows through post-execute + expect(result.isError).toBe(true) + expect(result.content[0]).toMatchObject({ text: 'Error: exploded' }) + }) + + it('a tools/execute listener can replace exec.signal for the dispatched tool (deadline pattern)', async () => { + const ctx = await setup() + let seenSignal: AbortSignal | undefined + ctx.tools.register({ + ...echoTool, + name: 'signal-probe', + async execute(_args, exec) { + seenSignal = exec.signal + return [{ type: 'text' as const, text: 'ok' }] + }, + }) + + const upstream = new AbortController().signal + const replacement = new AbortController().signal + ctx.on('tools/execute', async (exec, next) => { + expect(exec.signal).toBe(upstream) + // Cordis next() ignores passed arguments, so a wrapper mutates exec in + // place (the documented "mutate the shared object, then delegate" idiom). + exec.signal = replacement + return next() + }) + + await ctx.tools.execute({ callId: CallId('c1'), name: 'signal-probe', arguments: {}, signal: upstream }) + expect(seenSignal).toBe(replacement) // dispatch saw the wrapper's replacement, not the upstream + }) + + it('a tools/execute listener can short-circuit dispatch by returning a result without next()', async () => { + const ctx = await setup() + let dispatched = false + ctx.tools.register({ + ...echoTool, + name: 'never-runs', + async execute() { dispatched = true; return [] }, + }) + + ctx.on('tools/execute', async (exec, _next): Promise => + ({ callId: exec.callId, content: [{ type: 'text', text: 'short-circuited' }], isError: false })) + + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'never-runs', arguments: {} }) + expect(dispatched).toBe(false) // returning without next() skips core dispatch + expect(result.content[0]).toMatchObject({ text: 'short-circuited' }) + }) + + it('returns an isError result when a tools/execute listener throws', async () => { + const ctx = await setup() + ctx.tools.register(echoTool) + ctx.on('tools/execute', async () => { throw new Error('wrapper broke') }) + + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'echo', arguments: { text: 'hi' } }) + expect(result).toEqual({ + callId: CallId('c1'), + content: [{ type: 'text', text: 'Error: wrapper broke' }], + isError: true, + }) + }) + it('returns an isError result when a tools/pre-execute listener throws', async () => { const ctx = await setup() ctx.tools.register(echoTool) diff --git a/packages/timeout/README.md b/packages/timeout/README.md new file mode 100644 index 0000000000..36f52abaf3 --- /dev/null +++ b/packages/timeout/README.md @@ -0,0 +1,9 @@ +# timeout/ — tool-call timeout policy + +The tool-call timeout policy plugin. A single **product** package: it is a deployment-policy consumer of the `tools/execute` around-dispatch seam (owned by [`dsh-tools`](../core/tools)) and the pure [`dsh-timeout`](../util/timeout) library — not a swappable capability with an interface/implementation split, so it needs no seam trio. + +| Package | Role | ctx key | +|---|---|---| +| `timeout-policy/` | A `tools/execute` wrapper: for each configured tool it arms a per-call deadline on `exec.signal` and returns a structured `TOOL_TIMEOUT` result when that deadline wins | (registers a `tools/execute` listener; injects nothing) | + +Timeout is split across three layers: [`dsh-timeout`](../util/timeout) owns the pure timing/classification primitive (`deadline`/`timeoutOf`), each capability owns termination (bash kills its process group, the fetch provider tears down its socket), and this package owns the *model-facing tool-call budget as deployment policy* — no model-facing timeout argument, no global default. It is the middleware the [timeout-library RFC](../../docs/rfc/implemented/architecture/2026-07-06-timeout-deadline-library.md) foresaw. `bash` and hook command execution keep their own `BASH_TIMEOUT` backend timeout and do not route through this policy. diff --git a/packages/timeout/timeout-policy/README.md b/packages/timeout/timeout-policy/README.md new file mode 100644 index 0000000000..9054566cc3 --- /dev/null +++ b/packages/timeout/timeout-policy/README.md @@ -0,0 +1,46 @@ +# dsh-timeout-policy + +Tool-call timeout policy: a single `tools/execute` around-dispatch listener that arms a per-call cooperative deadline on `exec.signal` for each configured tool and returns a structured `TOOL_TIMEOUT` result when that deadline wins. It is the reference `tools/execute` wrapper and the deployment-owned home for model-facing tool-call budgets (the timeout-library RFC's foreseen middleware). + +## Plugin (namespace: `timeout-policy`) + +A function/namespace plugin (`name` / `Config` / `apply`), not a service. It registers no tool and injects nothing — it consumes `ctx.tools`'s `tools/execute` waterfall, which the `dsh-tools` registry always provides. + +### Config + +Per-tool policy, keyed by the model-facing tool name. There is deliberately **no global default** (a global budget would silently start failing any tool that runs long once the plugin loads) and **no model-facing override** (timeout is deployment policy, not prompt semantics) in this version. + +```yaml +- id: timeout-policy + name: '@deepseek-ai/dsh-timeout-policy' + config: + tools: + web_fetch: + timeoutMs: 30000 + web_search: + timeoutMs: 30000 +``` + +| Key | Type | Meaning | +|---|---|---| +| `tools` | `Record` | Per-tool timeout policy; an unlisted tool gets no deadline. `timeoutMs` is required per configured tool and must be positive finite. | + +### Behavior + +For a **configured** tool the listener: + +1. Arms `deadline(exec.signal, timeoutMs, 'TOOL_TIMEOUT')` — one signal fusing the caller's abort with this plugin's timer (`@deepseek-ai/dsh-timeout`). +2. Swaps that derived signal onto `exec` for the downstream dispatch, then restores the caller's own signal afterward (cordis `next()` ignores passed arguments, so the wrapper mutates the shared `exec` in place; restoring keeps `tools/post-execute` seeing the caller's signal). +3. After dispatch, if `timeoutOf(d.signal, 'TOOL_TIMEOUT')` matches — this plugin's own timer fired — replaces the result with a structured `TOOL_TIMEOUT` tool result: `{ isError: true, error: { name: 'ToolTimeoutError', code: 'TOOL_TIMEOUT' }, content: 'Error: tool call timed out after ms' }`. + +An **unconfigured** tool delegates untouched (no deadline). + +The base `next()` of `tools/execute` is the registry's dispatch-with-normalization thunk, so when the timeout signal reaches a provider that throws its own upstream-abort error, dispatch first turns it into a normal error result, and this wrapper then replaces that with `TOOL_TIMEOUT`. That ordering is why the replacement is keyed off the signal (`timeoutOf`), not off the dispatched result's shape. + +### Cooperative, not a hard kill + +The derived signal only **notifies**; termination stays with the tool and the capability it forwards `exec.signal` to (the `dsh-timeout` library owns no kill). **"Configured" therefore means "cooperative with `exec.signal`"**: a tool that ignores the signal will not stop on timeout. A deployment must only configure tools that forward the signal to their implementation — the shipped `web_fetch`/`web_search` (which forward through `ctx.web` to providers) are the reference. `TOOL_TIMEOUT` needs no session event for reconstructability: it is the final model-facing `tool/result`, already logged by the loop. + +### Composing with other `tools/execute` wrappers + +Multiple `tools/execute` listeners compose by cordis registration order. Combined with a future retry/sandbox/metrics wrapper, registration order chooses the semantics — "timeout covers the whole retry operation" (timeout registered outer) versus "timeout covers each attempt" (timeout registered inner). diff --git a/packages/timeout/timeout-policy/package.json b/packages/timeout/timeout-policy/package.json new file mode 100644 index 0000000000..0cf3febc75 --- /dev/null +++ b/packages/timeout/timeout-policy/package.json @@ -0,0 +1,39 @@ +{ + "name": "@deepseek-ai/dsh-timeout-policy", + "description": "Tool-call timeout policy: a tools/execute wrapper that arms a per-tool deadline on exec.signal and returns TOOL_TIMEOUT when it wins", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-timeout": "^0.0.1", + "@deepseek-ai/dsh-tools": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "schemastery": "^3.18.0" + }, + "devDependencies": { + "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-timeout": "workspace:^", + "@deepseek-ai/dsh-tools": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/timeout/timeout-policy/src/index.ts b/packages/timeout/timeout-policy/src/index.ts new file mode 100644 index 0000000000..5e5b18bb56 --- /dev/null +++ b/packages/timeout/timeout-policy/src/index.ts @@ -0,0 +1,137 @@ +/** + * `@deepseek-ai/dsh-timeout-policy`: the tool-call timeout policy plugin. It + * registers ONE `tools/execute` around-dispatch listener that, for each + * configured tool, arms a per-call deadline on `exec.signal` and returns a + * structured `TOOL_TIMEOUT` result when that deadline wins. + * + * This is a COOPERATIVE deadline, not a hard kill: the derived signal only + * NOTIFIES. A configured tool (and the capability it forwards `exec.signal` to) + * must honor that signal and reach quiescence — the plugin never races the tool + * promise or terminates work itself (see the timeout-library RFC's rejection of + * `Promise.race`). "Configured" therefore MEANS "cooperative with `exec.signal`": + * a tool that ignores the signal will not stop on timeout, so a deployment must + * only list tools that forward it (the shipped web tools are the reference). + * + * Ownership of the `TOOL_TIMEOUT` code is entirely here: it is both the internal + * {@link deadline} code (so {@link timeoutOf} scopes the classification to THIS + * plugin's own timer, reading a foreign/nested outer deadline as an ordinary + * cancel) and the structured `{ name, code }` on the replacement tool result. + * No new session event is needed for reconstructability: the `TOOL_TIMEOUT` + * result IS the final model-facing `tool/result`, already logged by the loop. + * + * Why a `tools/execute` around seam and not a `pre`/`post` pair: the deadline + * needs ONE lexical scope — arm on `exec.signal`, delegate to dispatch, classify + * the result, dispose the timer — which the around seam gives directly. A + * pre/post split would spread one deadline's lifetime across two independent + * waterfalls (a call-id map, cleanup on every deny/throw/dispose path). + * + * @module @deepseek-ai/dsh-timeout-policy + */ + +import type { Context } from 'cordis' +import z from 'schemastery' +import type { CallId } from '@deepseek-ai/dsh-llm' +import { deadline, timeoutOf } from '@deepseek-ai/dsh-timeout' +import type { ToolExecutionResult } from '@deepseek-ai/dsh-tools' + +/** + * The code owned by this plugin, used BOTH as the internal {@link deadline} + * classification code AND as the structured error `code` on the replacement + * tool result. Scoping {@link timeoutOf} to it keeps a nested outer deadline + * (another `tools/execute` wrapper's timer that fired first) from being misread + * as this plugin's own timeout — it reads as an ordinary upstream cancel. + */ +export const TOOL_TIMEOUT = 'TOOL_TIMEOUT' + +/** Cordis plugin name used by loader diagnostics. */ +export const name = 'timeout-policy' + +/** Per-tool timeout policy. `timeoutMs` is required and must be positive finite. */ +export interface ToolTimeoutPolicy { + /** The per-call cooperative deadline for this tool, in milliseconds. */ + timeoutMs: number +} + +/** + * Plugin config: per-tool timeout policy, keyed by the model-facing tool name. + * There is deliberately NO global default (a global budget would silently start + * failing any tool that happens to run long once the plugin loads) and NO model + * override (timeout is deployment policy, not prompt semantics) in this version. + */ +export interface Config { + /** Timeout policy per tool name; an unlisted tool gets no deadline from this plugin. */ + tools?: Record +} + +export const Config: z = z.object({ + tools: z.dict(z.object({ timeoutMs: z.number() })).default({}), +}) + +/** The shape after schemastery fills `tools` with its `{}` default. */ +type ResolvedConfig = Required + +/** A per-tool timeout must be a positive finite number (0 is not a "disable" value). */ +function assertPositiveFinite(toolName: string, value: number): void { + if (!Number.isFinite(value) || value <= 0) { + throw new Error(`timeout-policy: tools.${toolName}.timeoutMs must be a positive finite number`) + } +} + +/** + * The structured result substituted when this plugin's deadline wins. `content` + * is the model-facing message; `error.code` is the same {@link TOOL_TIMEOUT} + * this plugin owns, so a retry/sandbox plugin (and replay) can route on it. + */ +export function toolTimeoutResult(callId: CallId, timeoutMs: number): ToolExecutionResult { + return { + callId, + content: [{ type: 'text', text: `Error: tool call timed out after ${timeoutMs}ms` }], + isError: true, + error: { name: 'ToolTimeoutError', code: TOOL_TIMEOUT }, + } +} + +/** + * Register the tool-call timeout policy. For a configured tool the listener arms + * a {@link deadline} on the caller's `exec.signal`, swaps it onto `exec` for the + * downstream dispatch (cordis `next()` ignores passed arguments, so a wrapper + * mutates the shared `exec` in place), restores the original signal afterward so + * `tools/post-execute` sees the caller's own signal, and replaces the result + * with {@link toolTimeoutResult} when its own timer fired. An unconfigured tool + * delegates untouched. + */ +export function apply(ctx: Context, config: Config): void { + // schemastery (Config) has already filled `tools` with its {} default. + const resolved = config as ResolvedConfig + for (const [toolName, policy] of Object.entries(resolved.tools)) { + assertPositiveFinite(toolName, policy.timeoutMs) + } + + ctx.on('tools/execute', async (exec, next): Promise => { + const timeoutMs = resolved.tools[exec.name]?.timeoutMs + // Unconfigured tool: no deadline, delegate unchanged. + if (timeoutMs === undefined) return next() + + using d = deadline(exec.signal, timeoutMs, TOOL_TIMEOUT) + // Swap the derived deadline onto exec for dispatch, then restore the + // caller's own signal so post-execute listeners never see this plugin's + // (possibly already-aborted) timeout signal. `undefined` is not assignable to + // the optional `signal` under exactOptionalPropertyTypes, so branch on it. + const upstream = exec.signal + exec.signal = d.signal + try { + const result = await next() + // If OUR timer fired (scoped by code — a nested outer deadline reads as + // undefined here), the tool/capability saw the abort and reached + // quiescence; replace whatever it returned (its own abort result) with the + // structured TOOL_TIMEOUT the model sees. + if (timeoutOf(d.signal, TOOL_TIMEOUT) !== undefined) { + return toolTimeoutResult(exec.callId, timeoutMs) + } + return result + } finally { + if (upstream === undefined) delete exec.signal + else exec.signal = upstream + } + }) +} diff --git a/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts b/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts new file mode 100644 index 0000000000..be543f55fa --- /dev/null +++ b/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts @@ -0,0 +1,241 @@ +/** + * Unit + real-load-path coverage for @deepseek-ai/dsh-timeout-policy. The + * timeout-wins cases drive the deadline under fake timers (deterministic — no + * wall-clock race) and use a COOPERATIVE tool that settles only when its + * `exec.signal` aborts, mirroring how a real capability forwards the signal and + * reaches quiescence. + */ + +import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest' +import { Context } from 'cordis' +import Loader from '@cordisjs/plugin-loader' +import { CallId, HarnessError } from '@deepseek-ai/dsh-llm' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry, { defineTool, type ToolExecution, type ToolExecutionResult, type PostToolDecision } from '@deepseek-ai/dsh-tools' +import * as timeoutPolicy from '@deepseek-ai/dsh-timeout-policy' +import { TOOL_TIMEOUT, toolTimeoutResult } from '@deepseek-ai/dsh-timeout-policy' + +/** Mount the registry + the timeout-policy plugin with the given per-tool config. */ +async function setup(tools: Record = {}) { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(timeoutPolicy, { tools }) + return ctx +} + +/** A fast tool: returns immediately, ignoring the signal. */ +const fastTool = defineTool({ + name: 'fast', + description: 'returns at once', + parameters: {}, + async execute() { return [{ type: 'text' as const, text: 'ok' }] }, +}) + +/** A cooperative tool that settles ONLY when its exec.signal aborts (returns text). */ +const cooperativeTool = defineTool({ + name: 'slow', + description: 'stops when aborted', + parameters: {}, + execute(_args, exec): Promise<{ type: 'text'; text: string }[]> { + const done = [{ type: 'text' as const, text: 'stopped cooperatively' }] + if (exec.signal?.aborted) return Promise.resolve(done) + return new Promise((resolve) => { + exec.signal?.addEventListener('abort', () => { resolve(done) }) + }) + }, +}) + +/** A cooperative tool that THROWS its own upstream-abort error when aborted (web-provider shape). */ +const abortThrowingTool = defineTool({ + name: 'aborter', + description: 'throws WEB_ABORTED when aborted', + parameters: {}, + execute(_args, exec): Promise { + if (exec.signal?.aborted) return Promise.reject(new HarnessError('web fetch aborted', 'WEB_ABORTED')) + return new Promise((_resolve, reject) => { + exec.signal?.addEventListener('abort', () => { reject(new HarnessError('web fetch aborted', 'WEB_ABORTED')) }) + }) + }, +}) + +describe('timeout-policy config validation', () => { + it('rejects a non-positive timeout at apply', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await expect(ctx.plugin(timeoutPolicy, { tools: { web_fetch: { timeoutMs: 0 } } })) + .rejects.toThrow('tools.web_fetch.timeoutMs must be a positive finite number') + }) + + it('rejects a non-finite timeout at apply', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await expect(ctx.plugin(timeoutPolicy, { tools: { web_fetch: { timeoutMs: Infinity } } })) + .rejects.toThrow('must be a positive finite number') + }) + + it('mounts with no config (empty tools default) and delegates every call', async () => { + const ctx = await setup() + ctx.tools.register(fastTool) + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'fast', arguments: {} }) + expect(result).toEqual({ callId: CallId('c1'), content: [{ type: 'text', text: 'ok' }], isError: false }) + }) +}) + +describe('timeout-policy delegation (unconfigured / fast)', () => { + it('delegates an UNCONFIGURED tool unchanged and does not touch exec.signal', async () => { + const ctx = await setup({ other: { timeoutMs: 50 } }) + let seenSignal: AbortSignal | undefined + ctx.tools.register({ ...fastTool, name: 'probe', async execute(_a, exec) { seenSignal = exec.signal; return [{ type: 'text' as const, text: 'ok' }] } }) + + const upstream = new AbortController().signal + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'probe', arguments: {}, signal: upstream }) + expect(result.isError).toBe(false) + expect(seenSignal).toBe(upstream) // no deadline derived for an unconfigured tool + }) + + it('a configured tool that returns fast keeps its own result (no timeout)', async () => { + const ctx = await setup({ fast: { timeoutMs: 10_000 } }) + ctx.tools.register(fastTool) + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'fast', arguments: {} }) + expect(result).toEqual({ callId: CallId('c1'), content: [{ type: 'text', text: 'ok' }], isError: false }) + }) + + it('a configured tool receives the DERIVED deadline signal (not the caller signal) during dispatch', async () => { + const ctx = await setup({ probe: { timeoutMs: 10_000 } }) + let seenSignal: AbortSignal | undefined + ctx.tools.register({ ...fastTool, name: 'probe', async execute(_a, exec) { seenSignal = exec.signal; return [{ type: 'text' as const, text: 'ok' }] } }) + + const upstream = new AbortController().signal + await ctx.tools.execute({ callId: CallId('c1'), name: 'probe', arguments: {}, signal: upstream }) + expect(seenSignal).toBeDefined() + expect(seenSignal).not.toBe(upstream) // the plugin swapped in its fused deadline signal + }) +}) + +describe('timeout-policy signal restoration', () => { + it('restores the caller signal for post-execute after wrapping', async () => { + const ctx = await setup({ fast: { timeoutMs: 10_000 } }) + ctx.tools.register(fastTool) + let postSignal: AbortSignal | undefined | 'unset' = 'unset' + ctx.on('tools/post-execute', async (exec, _result, next): Promise => { + postSignal = exec.signal + return next() + }) + + const upstream = new AbortController().signal + await ctx.tools.execute({ callId: CallId('c1'), name: 'fast', arguments: {}, signal: upstream }) + expect(postSignal).toBe(upstream) // restored to the caller's own signal, not the deadline + }) + + it('deletes exec.signal again when the caller passed none', async () => { + const ctx = await setup({ fast: { timeoutMs: 10_000 } }) + ctx.tools.register(fastTool) + let hadSignal: boolean | undefined + ctx.on('tools/post-execute', async (exec, _result, next): Promise => { + hadSignal = 'signal' in exec && exec.signal !== undefined + return next() + }) + + await ctx.tools.execute({ callId: CallId('c1'), name: 'fast', arguments: {} }) + expect(hadSignal).toBe(false) // no caller signal → exec.signal absent again after wrapping + }) +}) + +describe('timeout-policy TOOL_TIMEOUT replacement (deadline wins)', () => { + beforeEach(() => { vi.useFakeTimers() }) + afterEach(() => { vi.useRealTimers() }) + + it('replaces a cooperative tool result with TOOL_TIMEOUT when its own deadline fires', async () => { + const ctx = await setup({ slow: { timeoutMs: 100 } }) + ctx.tools.register(cooperativeTool) + + const pending = ctx.tools.execute({ callId: CallId('c1'), name: 'slow', arguments: {} }) + await vi.advanceTimersByTimeAsync(150) // past the 100ms deadline: the timer fires, the tool settles + const result = await pending + + expect(result).toEqual({ + callId: CallId('c1'), + content: [{ type: 'text', text: 'Error: tool call timed out after 100ms' }], + isError: true, + error: { name: 'ToolTimeoutError', code: 'TOOL_TIMEOUT' }, + }) + }) + + it('replaces a provider-owned abort ERROR result with TOOL_TIMEOUT (not WEB_ABORTED) when the signal was ours', async () => { + const ctx = await setup({ aborter: { timeoutMs: 100 } }) + ctx.tools.register(abortThrowingTool) + + const pending = ctx.tools.execute({ callId: CallId('c1'), name: 'aborter', arguments: {} }) + await vi.advanceTimersByTimeAsync(150) + const result = await pending + + // Dispatch first normalized the thrown WEB_ABORTED into an isError result; + // the plugin then replaced THAT with TOOL_TIMEOUT because its own timer won. + expect(result.isError).toBe(true) + expect(result.error).toEqual({ name: 'ToolTimeoutError', code: 'TOOL_TIMEOUT' }) + expect(result.content[0]).toMatchObject({ text: 'Error: tool call timed out after 100ms' }) + }) + + it('does NOT replace when the caller aborts first (upstream cancel, not our timeout)', async () => { + const ctx = await setup({ slow: { timeoutMs: 100 } }) + ctx.tools.register(cooperativeTool) + + const upstream = new AbortController() + const pending = ctx.tools.execute({ callId: CallId('c1'), name: 'slow', arguments: {}, signal: upstream.signal }) + upstream.abort('user cancelled') // fires before the 100ms timer + await vi.advanceTimersByTimeAsync(0) + const result = await pending + + // Our timer never fired, so timeoutOf(code) is undefined: the tool's own + // cooperative result stands, not a TOOL_TIMEOUT. + expect(result.isError).toBe(false) + expect(result.content[0]).toMatchObject({ text: 'stopped cooperatively' }) + }) +}) + +describe('toolTimeoutResult', () => { + it('builds the structured TOOL_TIMEOUT result', () => { + expect(toolTimeoutResult(CallId('c9'), 250)).toEqual({ + callId: CallId('c9'), + content: [{ type: 'text', text: 'Error: tool call timed out after 250ms' }], + isError: true, + error: { name: 'ToolTimeoutError', code: 'TOOL_TIMEOUT' }, + } satisfies ToolExecutionResult) + }) + + it('exposes the owned code constant', () => { + expect(TOOL_TIMEOUT).toBe('TOOL_TIMEOUT') + }) +}) + +describe('dsh-timeout-policy real-load-path guard', () => { + it('has no default export and keeps name/Config through unwrapExports', () => { + expect('default' in timeoutPolicy).toBe(false) + + const loader = Object.create(Loader.prototype) as Loader + const unwrapped = loader.unwrapExports(timeoutPolicy) as Record + expect(unwrapped).toBe(timeoutPolicy) + expect(unwrapped.name).toBe('timeout-policy') + expect(typeof unwrapped.apply).toBe('function') + expect(unwrapped.Config).toBeDefined() + }) + + it('boots over ctx.tools through the unwrapped module and wraps a configured tool', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + ctx.tools.register(fastTool) + + const loader = Object.create(Loader.prototype) as Loader + const unwrapped = loader.unwrapExports(timeoutPolicy) as Parameters[0] + const fiber = await ctx.plugin(unwrapped, { tools: { fast: { timeoutMs: 5_000 } } }) + // A configured fast tool still succeeds (deadline never fires); this proves + // the wrapper is live through the real Loader path. + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'fast', arguments: {} } satisfies ToolExecution) + expect(result.isError).toBe(false) + await fiber.dispose() + }) +}) diff --git a/packages/timeout/timeout-policy/tsconfig.json b/packages/timeout/timeout-policy/tsconfig.json new file mode 100644 index 0000000000..8c0b47716e --- /dev/null +++ b/packages/timeout/timeout-policy/tsconfig.json @@ -0,0 +1,16 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": ["src"], + "references": [ + { "path": "../../../vendor/cosmokit" }, + { "path": "../../../vendor/cordis" }, + { "path": "../../../vendor/schemastery" }, + { "path": "../../llm/llm" }, + { "path": "../../util/timeout" }, + { "path": "../../core/tools" } + ] +} diff --git a/packages/web/tool-web/README.md b/packages/web/tool-web/README.md index d8a2e266a9..e99eda5564 100644 --- a/packages/web/tool-web/README.md +++ b/packages/web/tool-web/README.md @@ -1,6 +1,6 @@ # @deepseek-ai/dsh-tool-web -The model-facing web tool suite — `web_search` and `web_fetch` — over the [web capability seam](../web/README.md) (`ctx.web`). It owns model-facing concerns only: tool names, JSON schemas, snake_case argument names, prompt sections, the result-count bound, result formatting, HTML→markdown presentation, and `presentCall`. All web access goes through `ctx.web`; this package never imports a concrete provider. +The model-facing web tool suite — `web_search` and `web_fetch` — over the [web capability seam](../web/README.md) (`ctx.web`). It owns model-facing concerns only: tool names, JSON schemas, snake_case argument names, prompt sections, the result-count bound, result formatting, HTML→markdown presentation, and `presentCall`. All web access goes through `ctx.web`; this package never imports a concrete provider. Neither tool exposes a model-facing timeout — the tool-call budget is deployment policy owned by [`@deepseek-ai/dsh-timeout-policy`](../../timeout/timeout-policy/README.md) (a `tools/execute` wrapper); each tool just forwards `exec.signal` to the seam. Each tool is registered independently; a product that wants only one disables the other via config (`{ search: false }` / `{ fetch: false }`). @@ -9,7 +9,7 @@ Each tool is registered independently; a product that wants only one disables th | Tool | Args | Behavior | |---|---|---| | `web_search` | `query` (string) | Discovery. Returns an optional answer plus source URLs. `max_results` is **not** model-facing — the tool sets the bound (the `searchMaxResults` config, default 8) and passes it to the seam. | -| `web_fetch` | `url` (string), `timeout_ms` (number, optional) | Retrieves a specific URL. HTML bodies are rendered to markdown-ish text; text bodies pass through. A non-2xx status is reported, not an error. | +| `web_fetch` | `url` (string) | Retrieves a specific URL. HTML bodies are rendered to markdown-ish text; text bodies pass through. A non-2xx status is reported, not an error. The tool-call timeout is deployment policy (`dsh-timeout-policy`), not a model argument. | ## Config diff --git a/packages/web/tool-web/package.json b/packages/web/tool-web/package.json index 8c22afa9a8..80fd69dbc3 100644 --- a/packages/web/tool-web/package.json +++ b/packages/web/tool-web/package.json @@ -37,6 +37,7 @@ "@deepseek-ai/dsh-session": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", + "@deepseek-ai/dsh-timeout-policy": "workspace:^", "@deepseek-ai/dsh-web": "workspace:^", "@deepseek-ai/dsh-web-fetch-local": "workspace:^", "@deepseek-ai/dsh-web-search-exa": "workspace:^", diff --git a/packages/web/tool-web/src/fetch.ts b/packages/web/tool-web/src/fetch.ts index 5f7334d952..953a753afb 100644 --- a/packages/web/tool-web/src/fetch.ts +++ b/packages/web/tool-web/src/fetch.ts @@ -3,6 +3,12 @@ * Execution goes through `ctx.web` — this module owns the model-facing schema, * argument validation, and PRESENTATION (HTML→markdown, truncation formatting), * while the fetch provider owns safe retrieval (transport, redirects, caps). + * + * The model-facing schema exposes NO timeout knob: the tool-call budget is + * deployment policy owned by `@deepseek-ai/dsh-timeout-policy` (a `tools/execute` + * wrapper), matching the reference-agent `WebFetch` shape. This tool just + * forwards the (possibly deadline-derived) `exec.signal` to `ctx.web`; the + * provider keeps its own timeout only as a resource backstop for direct callers. */ import type { Context } from 'cordis' @@ -15,12 +21,9 @@ import type {} from '@deepseek-ai/dsh-system-prompt' import { htmlToMarkdown } from './html.ts' /** Validate value constraints the schema DSL can't express. */ -export function parseFetchArgs(args: { url: string; timeout_ms?: number }): { url: string; timeoutMs?: number } { +export function parseFetchArgs(args: { url: string }): { url: string } { if (args.url.trim().length === 0) throw new Error('url must be a non-empty string') - if (args.timeout_ms !== undefined && (!Number.isFinite(args.timeout_ms) || args.timeout_ms <= 0)) { - throw new Error('timeout_ms must be a positive number') - } - return { url: args.url, ...args.timeout_ms !== undefined ? { timeoutMs: args.timeout_ms } : {} } + return { url: args.url } } /** Render a fetched body to model-facing markdown text. */ @@ -44,7 +47,7 @@ export function formatFetchOutput(result: WebFetchResult): string { } /** Pending-call presentation: a fetch card titled by the URL. */ -export function presentFetchCall(args: { url: string; timeout_ms?: number }): GenericCallView { +export function presentFetchCall(args: { url: string }): GenericCallView { return { card: 'generic', title: args.url, kind: 'fetch', rawInput: args.url } } @@ -61,12 +64,11 @@ export function applyWebFetchTool(ctx: Context): void { description: 'Fetch the content of a specific HTTP(S) URL and return it decoded to text.', parameters: { url: { type: 'string', required: true, description: 'The HTTP(S) URL to fetch.' }, - timeout_ms: { type: 'number', description: 'Optional fetch timeout in milliseconds (capped by the provider).' }, }, async execute(args, exec): Promise { const input = parseFetchArgs(args) const result = await ctx.web.fetch( - { url: input.url, ...input.timeoutMs !== undefined ? { timeoutMs: input.timeoutMs } : {} }, + { url: input.url }, exec.signal ? { signal: exec.signal } : undefined, ) return [{ type: 'text', text: formatFetchOutput(result) }] diff --git a/packages/web/tool-web/tests/integration.spec.ts b/packages/web/tool-web/tests/integration.spec.ts index 50ae6c5624..03ad76ca0f 100644 --- a/packages/web/tool-web/tests/integration.spec.ts +++ b/packages/web/tool-web/tests/integration.spec.ts @@ -1,10 +1,11 @@ /** * Integration: the real fetch backend (`dsh-web-fetch-local`) + a real search * provider (`dsh-web-search-exa`) + the real seam (`dsh-web`) + the model tool - * (`dsh-tool-web`), exercised through `ctx.tools.execute()` — nothing bypasses - * the tool registry. Fetch hits a real loopback HTTP server (verifying the - * WORLD); search runs the real Exa provider over a stubbed global `fetch` (the - * network is the one boundary we mock). + * (`dsh-tool-web`) + the tool-call timeout policy (`dsh-timeout-policy`), + * exercised through `ctx.tools.execute()` — nothing bypasses the tool registry. + * Fetch hits a real loopback HTTP server (verifying the WORLD); search runs the + * real Exa provider over a stubbed global `fetch` (the network is the one + * boundary we mock). */ import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest' @@ -18,6 +19,7 @@ import WebService from '@deepseek-ai/dsh-web' import * as WebFetchLocal from '@deepseek-ai/dsh-web-fetch-local' import * as WebSearchExa from '@deepseek-ai/dsh-web-search-exa' import * as ToolWeb from '@deepseek-ai/dsh-tool-web' +import * as TimeoutPolicy from '@deepseek-ai/dsh-timeout-policy' type Handler = (req: IncomingMessage, res: ServerResponse) => void @@ -39,6 +41,9 @@ beforeEach(async () => { await ctx.plugin(WebService, { searchProvider: WebSearchExa.EXA_PROVIDER_ID, fetchProvider: WebFetchLocal.LOCAL_FETCH_PROVIDER_ID }) await ctx.plugin(WebFetchLocal, {}) await ctx.plugin(WebSearchExa, { apiKey: 'exa-key', baseURL: 'https://api.exa.test' }) + // The shipped deployment shape: the tool-call budget is deployment policy over + // the model tools, set above the provider backstop so the policy normally wins. + await ctx.plugin(TimeoutPolicy, { tools: { web_fetch: { timeoutMs: 30_000 }, web_search: { timeoutMs: 30_000 } } }) fiber = await ctx.plugin(ToolWeb) }) @@ -96,3 +101,69 @@ describe('web_search integration over the real Exa provider', () => { expect(out.content.map(b => b.text).join('')).toContain('[Result](https://result.test)') }) }) + +describe('tool-call timeout policy over the migrated web tools', () => { + it('neither model schema exposes a timeout parameter after the migration', () => { + const byName = new Map(ctx.tools.schemas().map(s => [s.name, s])) + const fetchParams = byName.get('web_fetch')!.parameters as { properties: Record } + const searchParams = byName.get('web_search')!.parameters as { properties: Record } + expect(Object.keys(fetchParams.properties)).toEqual(['url']) + expect('timeout_ms' in fetchParams.properties).toBe(false) + expect(Object.keys(searchParams.properties)).toEqual(['query']) + }) +}) + +describe('tool-call timeout returns TOOL_TIMEOUT (deadline wins over a slow fetch)', () => { + let slowServer: Server + let slowBase: string + let openSockets: ServerResponse[] + let tctx: Context + let tfiber: Awaited> + + beforeEach(async () => { + // A server that never responds: it holds the connection open until the + // client aborts. The cooperative deadline (via exec.signal → the fetch + // provider → undici) is what ends the call. + openSockets = [] + slowServer = createServer((_req, res) => { openSockets.push(res) }) + await new Promise(resolve => slowServer.listen(0, '127.0.0.1', resolve)) + slowBase = `http://127.0.0.1:${(slowServer.address() as AddressInfo).port}` + + tctx = new Context() + await tctx.plugin(SystemPrompt) + await tctx.plugin(ToolRegistry) + await tctx.plugin(WebService, { fetchProvider: WebFetchLocal.LOCAL_FETCH_PROVIDER_ID }) + // Provider backstop well ABOVE the tool-call budget, so the policy wins. + await tctx.plugin(WebFetchLocal, { timeoutMs: 30_000, maxTimeoutMs: 60_000 }) + await tctx.plugin(TimeoutPolicy, { tools: { web_fetch: { timeoutMs: 50 } } }) + tfiber = await tctx.plugin(ToolWeb) + }) + + afterEach(async () => { + for (const res of openSockets) res.destroy() + await tfiber.dispose() + await new Promise(resolve => slowServer.close(() => { resolve() })) + }) + + it('returns a structured TOOL_TIMEOUT (not the provider WEB_FETCH_TIMEOUT) when the tool-call budget wins', async () => { + const out = await tctx.tools.execute({ callId: CallId('slow-1'), name: 'web_fetch', arguments: { url: slowBase } }) + expect(out.isError).toBe(true) + // The outer tool-call deadline won: TOOL_TIMEOUT, owned by dsh-timeout-policy, + // NOT the provider's own WEB_FETCH_TIMEOUT (its 30s backstop never fired). + expect(out.error?.code).toBe('TOOL_TIMEOUT') + const text = out.content.map(b => (b.type === 'text' ? b.text : '')).join('') + expect(text).toContain('timed out after 50ms') + }) + + it('the provider backstop still protects a DIRECT ctx.web.fetch() call (no tool-call policy in that path)', async () => { + // A direct seam caller does not go through tools/execute, so the tool-call + // policy never applies; the provider's OWN timeout is the only budget. A + // short per-request hint proves the provider backstop is intact and classifies + // as WEB_FETCH_TIMEOUT (the provider-owned code), never TOOL_TIMEOUT. + const err = await tctx.web.fetch({ url: slowBase, timeoutMs: 50 }).then( + () => undefined, + (e: unknown) => e as { code?: string }, + ) + expect(err?.code).toBe('WEB_FETCH_TIMEOUT') + }) +}) diff --git a/packages/web/tool-web/tests/tool-web.spec.ts b/packages/web/tool-web/tests/tool-web.spec.ts index 924e0aaeb2..e060f90a4c 100644 --- a/packages/web/tool-web/tests/tool-web.spec.ts +++ b/packages/web/tool-web/tests/tool-web.spec.ts @@ -110,10 +110,9 @@ describe('fetch formatting', () => { expect(renderBody({ kind: 'html', content: '

y

' })).toBe('y') }) - it('validates url and timeout', () => { + it('validates url (non-empty), no timeout parameter', () => { expect(() => parseFetchArgs({ url: ' ' })).toThrow('non-empty') - expect(() => parseFetchArgs({ url: 'https://a.test', timeout_ms: -1 })).toThrow('positive') - expect(parseFetchArgs({ url: 'https://a.test', timeout_ms: 5 })).toEqual({ url: 'https://a.test', timeoutMs: 5 }) + expect(parseFetchArgs({ url: 'https://a.test' })).toEqual({ url: 'https://a.test' }) }) it('presents a fetch call as a fetch-kind card titled by the url', () => { @@ -249,7 +248,7 @@ describe('tool-web execution through the real registry', () => { expect('default' in ToolWeb).toBe(false) }) - it('executes web_fetch, forwarding timeout_ms and the abort signal to the seam', async () => { + it('executes web_fetch, forwarding the url (no timeout param) and the abort signal to the seam', async () => { const seen: { request?: { url: string; timeoutMs?: number }; signal?: AbortSignal | undefined } = {} const fetchProvider = { id: 'stub-fetch', @@ -262,13 +261,35 @@ describe('tool-web execution through the real registry', () => { } const { ctx, fiber } = await mountTools({ webConfig: { fetchProvider: 'stub-fetch' }, fetchProvider }) const controller = new AbortController() - const out = await ctx.tools.execute({ callId: CallId('fetch-1'), name: 'web_fetch', arguments: { url: 'https://a.test', timeout_ms: 1234 }, signal: controller.signal }) + const out = await ctx.tools.execute({ callId: CallId('fetch-1'), name: 'web_fetch', arguments: { url: 'https://a.test' }, signal: controller.signal }) expect(out.isError).toBe(false) - expect(seen.request).toEqual({ url: 'https://a.test', timeoutMs: 1234 }) + // The model schema exposes no timeout: the tool forwards only the url; the + // tool-call budget is owned by dsh-timeout-policy over exec.signal. + expect(seen.request).toEqual({ url: 'https://a.test' }) expect(seen.signal).toBe(controller.signal) await fiber.dispose() }) + it('executes web_fetch with no caller signal (forwards undefined to the seam)', async () => { + const seen: { signal?: AbortSignal | undefined; passedExec?: boolean } = {} + const fetchProvider = { + id: 'stub-fetch', + status: () => available, + fetch: (request: { url: string }, exec?: { signal?: AbortSignal }) => { + seen.passedExec = exec !== undefined + seen.signal = exec?.signal + return Promise.resolve({ providerId: 'stub-fetch', url: request.url, statusCode: 200, body: { kind: 'text' as const, content: 'ok' }, truncated: false }) + }, + } + const { ctx, fiber } = await mountTools({ webConfig: { fetchProvider: 'stub-fetch' }, fetchProvider }) + // No signal on the execution: the tool passes `undefined` (not `{ signal: undefined }`). + const out = await ctx.tools.execute({ callId: CallId('fetch-2'), name: 'web_fetch', arguments: { url: 'https://a.test' } }) + expect(out.isError).toBe(false) + expect(seen.passedExec).toBe(false) + expect(seen.signal).toBeUndefined() + await fiber.dispose() + }) + it('executes web_search, forwarding the abort signal to the seam', async () => { const seen: { signal?: AbortSignal | undefined } = {} const provider: WebSearchProvider = { diff --git a/packages/web/tool-web/tsconfig.json b/packages/web/tool-web/tsconfig.json index 463a18dee9..5226425ec6 100644 --- a/packages/web/tool-web/tsconfig.json +++ b/packages/web/tool-web/tsconfig.json @@ -12,6 +12,7 @@ { "path": "../../llm/llm" }, { "path": "../../core/tools" }, { "path": "../../core/system-prompt" }, + { "path": "../../timeout/timeout-policy" }, { "path": "../web" } ] } diff --git a/packages/web/web-fetch-local/README.md b/packages/web/web-fetch-local/README.md index 58db557581..9c2ef0030f 100644 --- a/packages/web/web-fetch-local/README.md +++ b/packages/web/web-fetch-local/README.md @@ -6,7 +6,9 @@ This is an **implementation** package: it registers a provider into `ctx.web`, i ## Responsibility split -The provider owns **safe resource retrieval**: URL validation, HTTP transport, redirect policy, timeout, abort propagation, byte caps, charset decoding, content-type classification, and binary rejection. `@deepseek-ai/dsh-tool-web` owns **presentation** (HTML→markdown, truncation formatting). A non-2xx HTTP response is a *result* (status code + decoded body), not an error; `WebError` is reserved for failures to safely retrieve or represent the resource. +The provider owns **safe resource retrieval**: URL validation, HTTP transport, redirect policy, a resource-backstop timeout, abort propagation, byte caps, charset decoding, content-type classification, and binary rejection. `@deepseek-ai/dsh-tool-web` owns **presentation** (HTML→markdown, truncation formatting). A non-2xx HTTP response is a *result* (status code + decoded body), not an error; `WebError` is reserved for failures to safely retrieve or represent the resource. + +The provider's `timeoutMs`/`maxTimeoutMs` is a **resource backstop** for direct `ctx.web.fetch()` callers and misconfigured deployments — it is NOT the model-facing tool-call budget. The tool-call budget for `web_fetch` is deployment policy owned by [`@deepseek-ai/dsh-timeout-policy`](../../timeout/timeout-policy/README.md), which arms a per-call deadline on `exec.signal`. A shipped web-tool deployment sets the provider backstop **above** the `tool-timeout` budget, so the tool-call policy normally wins for model calls (returning `TOOL_TIMEOUT`); when the outer deadline signal reaches this provider first, it classifies as `WEB_ABORTED` and the outer wrapper replaces the result with `TOOL_TIMEOUT`. The provider's own `WEB_FETCH_TIMEOUT` only fires for a direct seam caller whose own budget elapsed. ## Transport hygiene @@ -24,8 +26,8 @@ The provider owns **safe resource retrieval**: URL validation, HTTP transport, r | `maxUrlLength` | `2048` | Maximum accepted request URL length. | | `maxResponseBytes` | `5_000_000` | Maximum response body size in bytes. | | `maxBodyChars` | `100_000` | Maximum decoded body length in characters. | -| `timeoutMs` | `30_000` | Default fetch timeout. | -| `maxTimeoutMs` | `120_000` | Upper bound for a per-request timeout override. | +| `timeoutMs` | `30_000` | Default fetch timeout — a resource backstop for direct `ctx.web.fetch()` callers, not the model-facing tool-call budget (that is `dsh-timeout-policy`). | +| `maxTimeoutMs` | `120_000` | Upper bound for a per-request timeout override (direct callers). | | `maxRedirects` | `5` | Maximum same-origin redirect hops (`0` follows none). | | `userAgent` | `deepseek-harness/…` | `User-Agent` header. | diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 54050bd0f4..b4c2fdc099 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -800,6 +800,25 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/timeout/timeout-policy: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + '@deepseek-ai/dsh-timeout': + specifier: workspace:^ + version: link:../../util/timeout + '@deepseek-ai/dsh-tools': + specifier: workspace:^ + version: link:../../core/tools + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/todo/tool-todo: devDependencies: '@deepseek-ai/dsh-agent': @@ -987,6 +1006,9 @@ importers: '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../../core/system-prompt + '@deepseek-ai/dsh-timeout-policy': + specifier: workspace:^ + version: link:../../timeout/timeout-policy '@deepseek-ai/dsh-tools': specifier: workspace:^ version: link:../../core/tools diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 4f90b79e8e..c6436bb509 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -621,7 +621,7 @@ function renderToolPipeline(): string { const maintenance = 'curated Mermaid flow; exact tool schemas and event signatures live in generated catalogs' return [ ...generatedHeader('Tool Execution Pipeline'), - 'This graph shows where policy, hooks, sandboxing, filesystem guards, result rewriting, and UI rendering fit without changing the loop. The key extension points are the `tools/pre-execute` and `tools/post-execute` waterfalls.', + 'This graph shows where policy, hooks, sandboxing, filesystem guards, result rewriting, and UI rendering fit without changing the loop. The key extension points are the `tools/pre-execute`, `tools/execute`, and `tools/post-execute` waterfalls.', '', '```mermaid', 'flowchart TD', @@ -630,6 +630,7 @@ function renderToolPipeline(): string { ' presentCall["UI pending card
presentCall(args)"]', ` pre["${mermaidCode('tools/pre-execute')} waterfall
hooks, permission, sandbox"]`, ' denied["deny or ask
tool body skipped"]', + ` around["${mermaidCode('tools/execute')} waterfall
timeout, retry, metrics (around dispatch)"]`, ' toolBody["Registered tool execute() body"]', ` fsGate["${mermaidCode('fs/write-intent')} or ${mermaidCode('fs/edit-intent')}
tool-fs mutations only"]`, ` owned["Tool-owned session events
${mermaidCode('todo/write')}, ${mermaidCode('fs/observed')}, ${mermaidCode('hook/invoked')}, ${mermaidCode('hook/result')}"]`, @@ -640,19 +641,21 @@ function renderToolPipeline(): string { ' model --> toolCall', ' toolCall --> presentCall', ' toolCall --> pre', - ' pre -->|allow| toolBody', + ' pre -->|allow| around', + ' around --> toolBody', ' pre -->|deny or ask| denied', ' denied --> post', ' toolBody --> fsGate', ' fsGate --> toolBody', ' toolBody --> owned', - ' toolBody --> post', + ' toolBody --> around', + ' around --> post', ' post --> context', ' post --> toolResult', ' toolResult --> presentResult', '```', '', - 'Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate, while hook bridges and future permission prompts live on the generic tool waterfalls. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service.', + 'Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate; hook bridges and future permission prompts live on the generic pre/post tool waterfalls; and around-dispatch concerns like the tool-call timeout policy (`@deepseek-ai/dsh-timeout-policy`) wrap core dispatch on `tools/execute`. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service.', '', ...maintenanceFooter(maintenance), ].join('\n') diff --git a/scripts/gen-module-graph.ts b/scripts/gen-module-graph.ts index b84701c819..fe39d325f8 100644 --- a/scripts/gen-module-graph.ts +++ b/scripts/gen-module-graph.ts @@ -45,6 +45,7 @@ const GROUP_ORDER = [ 'compact', 'subagent', 'web', + 'timeout', 'todo', 'hooks', 'session-persistence', diff --git a/tsconfig.base.json b/tsconfig.base.json index 40e4dbe728..5b2e41509b 100644 --- a/tsconfig.base.json +++ b/tsconfig.base.json @@ -47,6 +47,7 @@ "./packages/compact/*/src", "./packages/subagent/*/src", "./packages/web/*/src", + "./packages/timeout/*/src", "./packages/todo/*/src", "./packages/hooks/*/src", "./packages/session-persistence/*/src", diff --git a/tsconfig.build.json b/tsconfig.build.json index ebf8ffef14..1e83e1e47d 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -39,6 +39,7 @@ { "path": "./packages/web/web-search-deepseek" }, { "path": "./packages/web/web-fetch-local" }, { "path": "./packages/web/tool-web" }, + { "path": "./packages/timeout/timeout-policy" }, { "path": "./packages/support/invariants" }, { "path": "./packages/ui/acp" }, { "path": "./packages/ui/acp-agent" }, diff --git a/tsconfig.json b/tsconfig.json index 49cce594dd..512d200193 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -50,6 +50,7 @@ { "path": "./packages/web/web-search-deepseek" }, { "path": "./packages/web/web-fetch-local" }, { "path": "./packages/web/tool-web" }, + { "path": "./packages/timeout/timeout-policy" }, { "path": "./packages/support/invariants" }, { "path": "./packages/ui/acp" }, { "path": "./packages/ui/acp-agent" }, From fb8f20de6e74738bed9c6433ccdde887f9265797 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Wed, 8 Jul 2026 10:28:21 +0800 Subject: [PATCH 050/232] fix review findings: reject queued ask aborts --- packages/ui/stdio-agent/src/stdio-chat.ts | 21 ++++++----- .../ui/stdio-agent/tests/stdio-chat.spec.ts | 35 +++++++++++++++++-- 2 files changed, 45 insertions(+), 11 deletions(-) diff --git a/packages/ui/stdio-agent/src/stdio-chat.ts b/packages/ui/stdio-agent/src/stdio-chat.ts index 4745aefb47..8dc402df52 100644 --- a/packages/ui/stdio-agent/src/stdio-chat.ts +++ b/packages/ui/stdio-agent/src/stdio-chat.ts @@ -223,13 +223,10 @@ export function createStdioChat(ctx: Context, config: Config, runtime: StdioRunt if (activeQuestion !== undefined) return const pending = questionQueue.shift() if (pending === undefined) return - if (pending.request.signal?.aborted) { - pending.reject(new UserInteractionError('ask_user_question was aborted before the user answered', 'ASK_ABORTED')) - startNextQuestion() - return - } + // The queue never contains an aborted pending ask: the seam rejects an + // already-aborted request synchronously, and queued asks attach their + // abort listener before enqueueing. activeQuestion = pending - pending.request.signal?.addEventListener('abort', pending.onAbort, { once: true }) renderQuestion(pending) } @@ -325,11 +322,19 @@ export function createStdioChat(ctx: Context, config: Config, runtime: StdioRunt resolve, reject, onAbort: () => { - activeQuestion = undefined + if (activeQuestion === pending) { + activeQuestion = undefined + disposeQuestion(pending) + startNextQuestion() + return + } + // If it is not active, this listener can only fire while the ask + // remains queued; settled asks remove the listener first. + questionQueue.splice(questionQueue.indexOf(pending), 1) disposeQuestion(pending) - startNextQuestion() }, } + request.signal?.addEventListener('abort', pending.onAbort, { once: true }) questionQueue.push(pending) startNextQuestion() }) diff --git a/packages/ui/stdio-agent/tests/stdio-chat.spec.ts b/packages/ui/stdio-agent/tests/stdio-chat.spec.ts index 1f4b44e1cf..93683d0768 100644 --- a/packages/ui/stdio-agent/tests/stdio-chat.spec.ts +++ b/packages/ui/stdio-agent/tests/stdio-chat.spec.ts @@ -550,15 +550,44 @@ describe('createStdioChat input', () => { const controller = new AbortController() const first = ctx.userInteraction.ask({ questions: [{ id: 'first', question: 'First?' }] }) const second = ctx.userInteraction.ask({ questions: [{ id: 'second', question: 'Second?' }], signal: controller.signal }) - const secondRejected = expect(second).rejects.toMatchObject({ code: 'ASK_ABORTED' }) await new Promise(r => setImmediate(r)) controller.abort() + + await expect(Promise.race([ + second.then( + () => 'resolved', + (error: unknown) => (error as { code?: string }).code, + ), + new Promise((resolve) => { setImmediate(() => { resolve('pending') }) }), + ])).resolves.toBe('ASK_ABORTED') + expect(out.text()).not.toContain('\nSecond?\n') input.feed('first answer') + await expect(first).resolves.toEqual({ answers: [{ id: 'first', selected: [], custom: 'first answer' }] }) + }) + + it('removes an aborted queued question without promoting later queued work early', async () => { + const { ctx, input, out } = await setup() + const controller = new AbortController() + const first = ctx.userInteraction.ask({ questions: [{ id: 'first', question: 'First?' }] }) + const second = ctx.userInteraction.ask({ questions: [{ id: 'second', question: 'Second?' }], signal: controller.signal }) + const third = ctx.userInteraction.ask({ questions: [{ id: 'third', question: 'Third?' }] }) + await new Promise(r => setImmediate(r)) + + controller.abort() + + await expect(second).rejects.toMatchObject({ code: 'ASK_ABORTED' }) + expect(out.text()).toContain('\nFirst?\n') + expect(out.text()).not.toContain('\nSecond?\n') + expect(out.text()).not.toContain('\nThird?\n') + input.feed('first answer') + await new Promise(r => setImmediate(r)) + + expect(out.text()).toContain('\nThird?\n') + input.feed('third answer') await expect(first).resolves.toEqual({ answers: [{ id: 'first', selected: [], custom: 'first answer' }] }) - await secondRejected - expect(out.text()).not.toContain('\nSecond?\n') + await expect(third).resolves.toEqual({ answers: [{ id: 'third', selected: [], custom: 'third answer' }] }) }) it('rejects active and queued questions when the UI is disposed', async () => { From 024869177784f0a87806389489d9096d799716ca Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Wed, 8 Jul 2026 10:28:47 +0800 Subject: [PATCH 051/232] test: assert timeout-policy listener disposal (codex round 1 P2) Codex flagged that the load-path smoke disposed the fiber only at the end, so a leaked stale tools/execute wrapper would still pass. Add an explicit HMR test: after fiber.dispose(), a configured tool receives the caller's own signal unwrapped (the derived deadline is gone), matching the repo's "dispose must reach quiescence" rule. --- .../tests/timeout-policy.spec.ts | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts b/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts index be543f55fa..23017d60f1 100644 --- a/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts +++ b/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts @@ -211,6 +211,28 @@ describe('toolTimeoutResult', () => { }) }) +describe('timeout-policy disposal (HMR safety)', () => { + it('removes its tools/execute listener when the plugin fiber disposes', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + let seenSignal: AbortSignal | undefined + ctx.tools.register({ ...fastTool, name: 'probe', async execute(_a, exec) { seenSignal = exec.signal; return [{ type: 'text' as const, text: 'ok' }] } }) + + // Mount the policy on its OWN fiber so disposing it removes only the wrapper. + const fiber = await ctx.plugin(timeoutPolicy, { tools: { probe: { timeoutMs: 10_000 } } }) + const upstream = new AbortController().signal + await ctx.tools.execute({ callId: CallId('c1'), name: 'probe', arguments: {}, signal: upstream }) + expect(seenSignal).not.toBe(upstream) // wrapper live: dispatch saw the derived deadline signal + + await fiber.dispose() + // Listener gone: the tool now receives the caller's own signal unwrapped. A + // leaked stale wrapper would still derive a deadline and fail this. + await ctx.tools.execute({ callId: CallId('c2'), name: 'probe', arguments: {}, signal: upstream }) + expect(seenSignal).toBe(upstream) + }) +}) + describe('dsh-timeout-policy real-load-path guard', () => { it('has no default export and keeps name/Config through unwrapExports', () => { expect('default' in timeoutPolicy).toBe(false) From 583704ac1d54674161f5af0990c19d2ea13703e3 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Wed, 8 Jul 2026 11:00:06 +0800 Subject: [PATCH 052/232] feat: add the worker-thread code runtime (dsh-code-runtime-worker) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The shipped backend of the code-execution seam, per the Code Mode RFC's worker-thread section: one fresh Node worker per run, executing the model's TypeScript after a host-side type-strip (wrapped in an async-function shell so top-level return/await parse, sliced back out position-preserved), bindings bridged over the message port under hostile-peer rules (own-property name lookup, at-most-once replies, post-settlement drops, null-prototype namespaces), logs streamed eagerly with an in-band truncation marker, and two independent budgets — measured event-loop busy time (computeMs) plus a never-pausing wall ceiling (maxWallMs) — funneling into worker.terminate(). env: {} and execArgv: [] keep the isolate hermetic; disposal aborts in-flight runs and awaits worker exits. The worker entry loads unbuilt via Node's native type stripping (src/worker.ts, erasable-only) and ships built as a sibling tsdown bundle (lib/worker.js); tests/built-lib.e2e.ts pins the built load path under plain node and joins the built-artifact smoke gate. Unit suites cover the bootstrap in-process (fake port) and the runtime over real workers, per-file 100%. --- AGENTS.md | 4 +- docs/capability-seams.md | 4 +- docs/config-catalog.md | 32 ++ docs/module-graph.md | 3 + docs/testing.md | 2 +- knip.json | 4 + packages/README.md | 2 +- packages/code-runtime/README.md | 5 +- .../code-runtime-worker/README.md | 32 ++ .../code-runtime-worker/package.json | 36 ++ .../code-runtime-worker/src/bootstrap.ts | 257 +++++++++++++ .../code-runtime-worker/src/index.ts | 350 ++++++++++++++++++ .../code-runtime-worker/src/protocol.ts | 65 ++++ .../code-runtime-worker/src/worker.ts | 20 + .../tests/bootstrap.spec.ts | 214 +++++++++++ .../tests/built-lib.e2e.ts | 55 +++ .../code-runtime-worker/tests/runtime.spec.ts | 328 ++++++++++++++++ .../code-runtime-worker/tsconfig.json | 24 ++ .../code-runtime-worker/tsdown.config.ts | 18 + pnpm-lock.yaml | 13 + scripts/check-workspace-constraints.ts | 15 + scripts/gen-doc-graphs.ts | 2 +- scripts/run-gates.ts | 1 + tsconfig.build.json | 1 + tsconfig.json | 1 + vitest.config.ts | 7 +- 26 files changed, 1486 insertions(+), 9 deletions(-) create mode 100644 packages/code-runtime/code-runtime-worker/README.md create mode 100644 packages/code-runtime/code-runtime-worker/package.json create mode 100644 packages/code-runtime/code-runtime-worker/src/bootstrap.ts create mode 100644 packages/code-runtime/code-runtime-worker/src/index.ts create mode 100644 packages/code-runtime/code-runtime-worker/src/protocol.ts create mode 100644 packages/code-runtime/code-runtime-worker/src/worker.ts create mode 100644 packages/code-runtime/code-runtime-worker/tests/bootstrap.spec.ts create mode 100644 packages/code-runtime/code-runtime-worker/tests/built-lib.e2e.ts create mode 100644 packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts create mode 100644 packages/code-runtime/code-runtime-worker/tsconfig.json create mode 100644 packages/code-runtime/code-runtime-worker/tsdown.config.ts diff --git a/AGENTS.md b/AGENTS.md index 2cd72aff60..c466a20f77 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -1,6 +1,6 @@ # AGENTS.md -This is the monorepo of the DeepSeek Harness group; it hosts **DeepSeek Harness SDK**, a plugin-based SDK for building agent harnesses. The codebase is built on the vendored Cordis framework, microkernel-style: **everything is a plugin**. Read [docs/architecture.md](docs/architecture.md) before changing `packages/`; the documentation standard is [docs/AGENTS.md](docs/AGENTS.md). +This is the DeepSeek Harness group's monorepo; it hosts **DeepSeek Harness SDK**, a plugin-based SDK for building agent harnesses. The codebase is built on the vendored Cordis framework, microkernel-style: **everything is a plugin**. Read [docs/architecture.md](docs/architecture.md) before changing `packages/`; the documentation standard is [docs/AGENTS.md](docs/AGENTS.md). ## Pre-release stance: foundation over blast radius @@ -69,7 +69,7 @@ printf '%s\n' "$out" | grep -q '\[tool call\] echo({"text":"ci smoke"})' printf '%s\n' "$out" | grep -q '\[tool result\] ECHO: CI SMOKE' ls .sessions/_no-cwd/main-session-*.jsonl >/dev/null rm -rf .sessions -pnpm exec vitest run --config vitest.e2e.config.ts packages/ui/stdio-agent/tests/built-bin.e2e.ts packages/ui/acp-agent/tests/built-bin.e2e.ts +pnpm exec vitest run --config vitest.e2e.config.ts packages/ui/stdio-agent/tests/built-bin.e2e.ts packages/ui/acp-agent/tests/built-bin.e2e.ts packages/code-runtime/code-runtime-worker/tests/built-lib.e2e.ts ``` `test:coverage`, not `test`, is the gating run ([why](docs/testing.md)); a sign-off counts only for commands actually run. diff --git a/docs/capability-seams.md b/docs/capability-seams.md index 339954c00f..12ce8033b9 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -44,6 +44,7 @@ flowchart LR pkg_hooks_codex["hooks-codex"] pkg_code_runtime["code-runtime"] svc_codeRuntime["ctx.codeRuntime
Code-execution seam"] + pkg_code_runtime_worker["code-runtime-worker"] pkg_fs["fs"] svc_fs["ctx.fs
Filesystem provider seam"] pkg_fs_local["fs-local"] @@ -67,6 +68,7 @@ flowchart LR pkg_bash --> svc_bash pkg_bash_local --> svc_bash pkg_code_runtime --> svc_codeRuntime + pkg_code_runtime_worker --> svc_codeRuntime pkg_compact --> svc_compact pkg_compact_basic --> svc_compact pkg_fs --> svc_fs @@ -137,7 +139,7 @@ flowchart LR | `ctx.agents` | `core` | [`agent`](../packages/core/agent) | - | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp), [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`stdio-agent`](../packages/ui/stdio-agent), [`invariants`](../packages/support/invariants) | - | Owns live Agent handles and the create/resume factory seam. | | `ctx.agentLoop` | `bundle` | [`agent-loop`](../packages/core/agent-loop) | - | [`agent-core`](../packages/core/agent-core) | - | The one concrete loop plugin; extension packages depend on dsh-agent events and services, not on this package. | | `ctx.bash` | `seam` | [`bash`](../packages/bash/bash) | [`bash-local`](../packages/bash/bash-local) | [`tool-bash`](../packages/bash/tool-bash), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | - | The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors can replace bash-local. | -| `ctx.codeRuntime` | `seam` | [`code-runtime`](../packages/code-runtime/code-runtime) | - | - | - | Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the Code Mode RFC specifies the worker-thread backend and the tool-registry consumer). | +| `ctx.codeRuntime` | `seam` | [`code-runtime`](../packages/code-runtime/code-runtime) | [`code-runtime-worker`](../packages/code-runtime/code-runtime-worker) | - | - | Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the Code Mode RFC specifies the worker-thread backend and the tool-registry consumer). | | `ctx.fs` | `seam` | [`fs`](../packages/fs/fs) | [`fs-local`](../packages/fs/fs-local) | [`tool-fs`](../packages/fs/tool-fs) | [`fs-policy`](../packages/fs/fs-policy) | tool-fs executes read/write/edit through ctx.fs; fs-policy contributes observed-state checks through the fs/* event gate. | | `ctx.compact` | `seam` | [`compact`](../packages/compact/compact) | [`compact-basic`](../packages/compact/compact-basic) | [`compact-basic`](../packages/compact/compact-basic) | - | The basic backend currently consumes the pre-step event directly; a model-facing compact tool remains deferred. | | `ctx.subagents` | `seam` | [`subagent`](../packages/subagent/subagent) | [`subagent-spawn`](../packages/subagent/subagent-spawn), [`subagent-fork`](../packages/subagent/subagent-fork), [`subagent-acp`](../packages/subagent/subagent-acp), [`subagent-mock`](../packages/support/subagent-mock) | [`tool-subagent`](../packages/subagent/tool-subagent) | - | Providers implement transports; tool-subagent exposes one configured provider as a model-facing tool name. | diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 73ab7d45dd..6510aea849 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -141,6 +141,38 @@ export interface Config { Source: [`packages/bash/bash-local/src/index.ts:28`](../packages/bash/bash-local/src/index.ts) +## `@deepseek-ai/dsh-code-runtime-worker` + +```ts config-catalog +/** Plugin config: every execution cap, changeable from `cordis.yml` (no hardcoded tunables). */ +export interface Config { + /** + * Busy-time budget in milliseconds: the run fails with kind `'timeout'` + * once the worker's MEASURED event-loop active time + * (`worker.performance.eventLoopUtilization()`) exceeds this. Metering + * measured busy time — not wall time, not host-side pending-call + * bookkeeping — is what makes the budget both fair (a program awaiting a + * slow tool accrues nothing) and ungameable (a hot loop accrues whether + * or not a decoy dispatch is in flight). + */ + computeMs?: number + /** + * Wall-clock ceiling in milliseconds; never pauses for anything. The + * backstop for what busy-time cannot see (a program awaiting a promise + * nobody will resolve). + */ + maxWallMs?: number + /** Shared byte budget for captured log text (console + raw stream writes), truncation marked in-band. */ + maxLogBytes?: number + /** Byte cap for the rendered completion value; an oversized or non-cloneable value crosses as a capped string rendering. */ + maxValueBytes?: number + /** The worker's max old-generation heap in MiB (`resourceLimits`); overflow kills the worker, surfacing as kind `'worker-exit'`. */ + maxOldGenerationSizeMb?: number +} +``` + +Source: [`packages/code-runtime/code-runtime-worker/src/index.ts:27`](../packages/code-runtime/code-runtime-worker/src/index.ts) + ## `@deepseek-ai/dsh-compact-basic` Requires: `llm` diff --git a/docs/module-graph.md b/docs/module-graph.md index b12250d484..fa02da2430 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -80,9 +80,11 @@ flowchart TD end subgraph group_code_runtime["packages/code-runtime"] pkg_code_runtime["code-runtime"] + pkg_code_runtime_worker["code-runtime-worker"] end pkg_llm --> pkg_brand pkg_bash --> pkg_brand + pkg_code_runtime_worker --> pkg_code_runtime pkg_llm_deepseek --> pkg_llm pkg_llm_pi_ai --> pkg_llm pkg_session --> pkg_brand @@ -214,6 +216,7 @@ flowchart TD | [`code-runtime`](../packages/code-runtime/code-runtime) | `code-runtime` | — | | [`llm`](../packages/llm/llm) | `llm` | [`brand`](../packages/util/brand) | | [`bash`](../packages/bash/bash) | `bash` | [`brand`](../packages/util/brand) | +| [`code-runtime-worker`](../packages/code-runtime/code-runtime-worker) | `code-runtime` | [`code-runtime`](../packages/code-runtime/code-runtime) | | [`llm-deepseek`](../packages/llm/llm-deepseek) | `llm` | [`llm`](../packages/llm/llm) | | [`llm-pi-ai`](../packages/llm/llm-pi-ai) | `llm` | [`llm`](../packages/llm/llm) | | [`session`](../packages/core/session) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | diff --git a/docs/testing.md b/docs/testing.md index d7ed14ecb9..5ec94b7502 100644 --- a/docs/testing.md +++ b/docs/testing.md @@ -25,7 +25,7 @@ An e2e assertion re-runs the command or re-reads the file externally; a keyword - A plugin shipped via `cordis.yml` needs at least one test through the REAL Loader path: hand-built `ctx.plugin({...})` mounts bypass `unwrapExports` and cannot catch a broken export shape ([postmortem 0001](postmortem/0001-acp-default-export-drops-inject.md); export-shape rules in [packages/AGENTS.md](../packages/AGENTS.md)). - A guard only guards if the regression actually fails it. For a plugin without `inject` (bundle/composition plugins), a Loader smoke stays green under a broken export shape — add an explicit `expect('default' in mod).toBe(false)` plus an `unwrapExports` round-trip assertion, and prove it: introduce the regression, watch red, revert. -- "Real entry path" means the published artifact: the package `bin` points at built `lib/bin.js` under plain `node`, which tsx masks (settle races, module resolution, a swallowed load failure exiting 0). Keep the built-bin smokes green (`packages/ui/*/tests/built-bin.e2e.ts`), and assert a genuinely-missing config exits non-zero. +- "Real entry path" means the published artifact: the package `bin` points at built `lib/bin.js` under plain `node`, which tsx masks (settle races, module resolution, a swallowed load failure exiting 0). The same applies to any non-index runtime entry the built package resolves at run time (the worker-thread runtime's sibling `lib/worker.js`). Keep the built-artifact smokes green (`packages/ui/*/tests/built-bin.e2e.ts`, `packages/code-runtime/code-runtime-worker/tests/built-lib.e2e.ts`), and assert a genuinely-missing config exits non-zero. - An e2e that spawns an example from a temp cwd sets `TSX_TSCONFIG_PATH` to the repo-root tsconfig, or it silently falls back to stale built `lib/` ([examples/AGENTS.md](../examples/AGENTS.md)). ## When a snapshot test is required diff --git a/knip.json b/knip.json index 89cd2fffe7..b9dbd9bbff 100644 --- a/knip.json +++ b/knip.json @@ -25,6 +25,10 @@ "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] }, + "packages/code-runtime/code-runtime-worker": { + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] + }, "packages/llm/llm-deepseek": { "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] diff --git a/packages/README.md b/packages/README.md index da75f740e8..8e918c4c15 100644 --- a/packages/README.md +++ b/packages/README.md @@ -11,7 +11,7 @@ Packages are grouped by modular role at `packages///`. The group dir | [`core/`](core/README.md) | Product API spine: session, system-prompt, tools, agent, and the concrete loop | Product — stable surface | | [`llm/`](llm/README.md) | LLM capability family: the abstract service + provider adapters | Product — stable surface | | [`bash/`](bash/README.md) | Bash capability family: the executor seam, a local impl, and the model-facing tool | Product — stable surface | -| [`code-runtime/`](code-runtime/README.md) | Code-execution capability family: the abstract runtime seam for model-written programs | Product — stable surface | +| [`code-runtime/`](code-runtime/README.md) | Code-execution capability family: the abstract runtime seam for model-written programs + a worker-thread backend | Product — stable surface | | [`fs/`](fs/README.md) | Filesystem capability family: the abstract seam, a local impl, and the model-facing file tools | Product — stable surface | | [`compact/`](compact/README.md) | Compaction capability family: the abstract seam + a basic backend (tool deferred) | Product — stable surface | | [`subagent/`](subagent/README.md) | Subagent capability family: the provider-registry seam and the model-facing delegation tool | Product — stable surface | diff --git a/packages/code-runtime/README.md b/packages/code-runtime/README.md index 578f3179c1..b98baa43e6 100644 --- a/packages/code-runtime/README.md +++ b/packages/code-runtime/README.md @@ -1,9 +1,10 @@ # code-runtime/ — code-execution capability family -The code-execution capability seam (see [capability seams](../../docs/rfc/implemented/architecture/2026-06-13-capability-seams.md)): an abstract runtime interface for executing one model-written program against host-provided async bindings, capturing what it printed and returned. The consumer is the tool registry's Code Mode, and the first implementation (a Node worker-thread backend) is specified alongside it in the [Code Mode RFC](../../docs/rfc/proposed/feature/2026-06-15-code-mode.md). **Product** packages. +The code-execution capability seam (see [capability seams](../../docs/rfc/implemented/architecture/2026-06-13-capability-seams.md)): an abstract runtime interface for executing one model-written program against host-provided async bindings, capturing what it printed and returned. The consumer is the tool registry's Code Mode, specified alongside the seam in the [Code Mode RFC](../../docs/rfc/proposed/feature/2026-06-15-code-mode.md). **Product** packages. | Package | Role | ctx key | |---|---|---| | `code-runtime/` | Abstract code-execution seam (interface + vocabulary) | `ctx.codeRuntime` | +| [`code-runtime-worker/`](code-runtime-worker/README.md) | Worker-thread backend: fresh worker per run, TypeScript via host-side type-strip, port-bridged bindings, budget/heap containment | registers `ctx.codeRuntime` | -The interface lives at `code-runtime/code-runtime/`. Backends differ by execution substrate (worker thread, process, container) and by source language — both readonly descriptors on the service — and register `ctx.codeRuntime` without touching the interface or its consumer; that split is what makes a hardened backend a drop-in later. +The interface lives at `code-runtime/code-runtime/`; the shipped backend at `code-runtime/code-runtime-worker/`. Backends differ by execution substrate (worker thread, process, container) and by source language — both readonly descriptors on the service — and register `ctx.codeRuntime` without touching the interface or its consumer; that split is what makes a hardened backend a drop-in later. diff --git a/packages/code-runtime/code-runtime-worker/README.md b/packages/code-runtime/code-runtime-worker/README.md new file mode 100644 index 0000000000..13bf992bb5 --- /dev/null +++ b/packages/code-runtime/code-runtime-worker/README.md @@ -0,0 +1,32 @@ +# @deepseek-ai/dsh-code-runtime-worker + +Worker-thread implementation of the [`@deepseek-ai/dsh-code-runtime`](../code-runtime/README.md) seam: `WorkerCodeRuntime` runs each program in ONE fresh Node `worker_threads.Worker` — TypeScript in, type-stripped host-side, bindings bridged over the message port, `{ value, logs, error? }` out. **Containment, not a security boundary**: trust posture is bash-equivalent by design (the [Code Mode RFC](../../../docs/rfc/proposed/feature/2026-06-15-code-mode.md) § Trust posture), with containment bash does not have — separate isolate, empty environment, heap cap, hard termination. + +## Config + +```yaml +- id: code-runtime + name: '@deepseek-ai/dsh-code-runtime-worker' + config: + computeMs: 60000 # busy-time budget (measured event-loop active time) + maxWallMs: 600000 # wall-clock ceiling; never pauses for anything + maxLogBytes: 65536 # shared byte budget for captured log text + maxValueBytes: 32768 # rendered-completion-value cap + maxOldGenerationSizeMb: 512 # worker heap cap (resourceLimits) +``` + +Every field is validated (positive numbers) and defaulted; there are no other tunables. + +## Design + +- **One fresh worker per run, no pooling** — a program's world dies with its worker: no cross-run state to log, state bleed unrepresentable, runs reconstructable from the session log alone. +- **Type-strip host-side, in execution context** — the program is wrapped in an async-function shell, stripped with `node:module`'s `stripTypeScriptTypes` (erasable syntax only — `enum`/namespaces are rejected as a program `exception` and no worker spawns), and sliced back out byte-positioned; it then executes as the body of an `AsyncFunction`, so top-level `await`/`return` work. +- **The port assumes a hostile peer** — model code can reach `parentPort` and forge traffic, so the host answers each call id at most once, resolves binding names as OWN properties only (a forged `constructor` cannot walk a prototype chain), drops post-settlement replies, and converts a non-cloneable binding resolution into an error reply. Worker-side namespaces are null-prototype with `defineProperty`, so `__proto__`-shaped binding names are ordinary keys. +- **Two independent budgets, because the peer is hostile** — `computeMs` meters the worker's MEASURED busy time (`worker.performance.eventLoopUtilization()` polling): a hot loop cannot hide behind a pending decoy dispatch, and a program awaiting a slow tool accrues nothing. `maxWallMs` backstops what busy time cannot see (awaiting a promise nobody resolves). Both funnel into `worker.terminate()`, which ends hot synchronous loops too; heap overflow surfaces as the worker's OOM exit (`kind: 'worker-exit'`). +- **Logs stream eagerly** — console/stdout/stderr entries cross the port as they happen, so a timed-out or killed program still shows what it printed; pipe bytes that bypass the patched streams are appended after, under the same byte budget. +- **Empty environment** — the worker gets `env: {}` and `execArgv: []`: no ambient credentials (stronger than the scrubbed-env rule for spawned commands) and no inherited loader flags. +- **Dispose to quiescence** — teardown fails in-flight runs as `abort` and AWAITS each worker's exit before resolving. + +## The worker entry, unbuilt and built + +`worker.ts` is deliberately erasable-only TypeScript with type-only cross-package imports: unbuilt (vitest/tsx), the host spawns `src/worker.ts` directly and Node's native type stripping loads it; built, the entry ships as the sibling bundle `lib/worker.js` (its own tsdown entry). The built path is pinned by `tests/built-lib.e2e.ts`, the real-load-path guard from [docs/testing.md](../../../docs/testing.md). diff --git a/packages/code-runtime/code-runtime-worker/package.json b/packages/code-runtime/code-runtime-worker/package.json new file mode 100644 index 0000000000..85df6a0d78 --- /dev/null +++ b/packages/code-runtime/code-runtime-worker/package.json @@ -0,0 +1,36 @@ +{ + "name": "@deepseek-ai/dsh-code-runtime-worker", + "description": "Worker-thread implementation of the DeepSeek Harness code-execution seam", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/worker.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-code-runtime": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "schemastery": "^3.18.0" + }, + "devDependencies": { + "@deepseek-ai/dsh-code-runtime": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/code-runtime/code-runtime-worker/src/bootstrap.ts b/packages/code-runtime/code-runtime-worker/src/bootstrap.ts new file mode 100644 index 0000000000..06cef02c7b --- /dev/null +++ b/packages/code-runtime/code-runtime-worker/src/bootstrap.ts @@ -0,0 +1,257 @@ +/** + * Worker-side execution logic, written as plain functions over an injected + * port so the unit suite can run every line IN-PROCESS against a fake port + * (a real worker thread is a separate V8 isolate the coverage provider + * cannot observe). The real worker entry (`worker.ts`) is a thin + * self-executing glue file over {@link runWorkerMain}, excluded from + * coverage the same way `bin.ts` entrypoints are, and exercised end-to-end + * by the integration tests that spawn real workers. + * + * @module @deepseek-ai/dsh-code-runtime-worker/src/bootstrap + */ + +import { inspect } from 'node:util' +import type { CodeLogEntry } from '@deepseek-ai/dsh-code-runtime' +import type { DoneMessage, ReplyMessage, WorkerBootData, WorkerToHost } from './protocol.ts' + +/** The port surface the bootstrap needs — satisfied by `parentPort` and by the tests' fake. */ +export interface BootstrapPort { + postMessage(message: WorkerToHost): void + on(event: 'message', listener: (message: ReplyMessage) => void): void +} + +/** + * A writable stream's `write` slot, as the bootstrap patches it (see + * {@link captureStreamWrites}). Method-typed so the real + * `process.stdout`/`process.stderr` (narrower chunk parameters) remain + * assignable. + */ +export interface PatchableStream { + write(chunk: unknown, ...rest: unknown[]): boolean +} + +/** + * Ordered log capture under one shared byte budget, delivered to a sink as + * each entry lands (the real sink streams entries over the port eagerly, so + * captured output survives a mid-run termination). Once the budget is + * exhausted it emits exactly one in-band marker entry (on the `stderr` + * diagnostics channel) and silently drops everything after — the cap is a + * blast-radius bound, so "how much was lost" intentionally stays unmeasured. + */ +export class LogBuffer { + private remaining: number + private truncated = false + // Explicit fields, not constructor parameter properties: this module loads + // under Node's native strip-only mode, which rejects non-erasable syntax — + // and parameter properties are non-erasable. + private readonly maxBytes: number + private readonly sink: (entry: CodeLogEntry) => void + + constructor(maxBytes: number, sink: (entry: CodeLogEntry) => void) { + this.maxBytes = maxBytes + this.sink = sink + this.remaining = maxBytes + } + + /** + * Emit one entry to the sink, charging its text against the budget (drops + marks once exhausted). + * @param entry - the log entry to deliver. + */ + push(entry: CodeLogEntry): void { + if (this.truncated) return + const cost = Buffer.byteLength(entry.text, 'utf8') + if (cost > this.remaining) { + this.truncated = true + this.sink({ source: 'stderr', text: `[dsh-code-runtime-worker] log capture truncated at ${this.maxBytes} bytes` }) + return + } + this.remaining -= cost + this.sink(entry) + } +} + +/** The five console methods the shim captures, in the seam's level vocabulary. */ +const CONSOLE_LEVELS = ['log', 'info', 'warn', 'error', 'debug'] as const + +/** + * A `console` replacement whose five leveled methods render their arguments + * `util.inspect`-style (matching real console formatting closely enough for + * a model to recognize its own output) into the buffer. Only these five + * exist — the program gets a deliberately small console, not Node's full + * surface. + * @param logs - the buffer every rendered line is pushed into. + * @returns the five-method console object handed to the program. + */ +export function makeConsoleShim(logs: LogBuffer): Record<(typeof CONSOLE_LEVELS)[number], (...args: unknown[]) => void> { + const render = (args: unknown[]): string => + args.map(arg => typeof arg === 'string' ? arg : inspect(arg, INSPECT_OPTIONS)).join(' ') + const shim = Object.create(null) as Record<(typeof CONSOLE_LEVELS)[number], (...args: unknown[]) => void> + for (const level of CONSOLE_LEVELS) { + shim[level] = (...args: unknown[]) => { logs.push({ source: 'console', level, text: render(args) }) } + } + return shim +} + +/** + * Redirect a stream's `write` into the log buffer (the program-visible + * `process.stdout`/`process.stderr` in the real worker), so raw writes land + * in emission order alongside console output instead of racing down a pipe. + * @param logs - the buffer captured writes are pushed into. + * @param stream - the stream whose `write` slot is patched. + * @param source - the log source the captured writes are attributed to. + * @returns the restore function (the in-process tests un-patch; the real + * worker never needs to). + */ +export function captureStreamWrites(logs: LogBuffer, stream: PatchableStream, source: 'stdout' | 'stderr'): () => void { + // The slot's VALUE is stored for restore and reassigned — never invoked + // detached, so the unbound-method concern does not apply. + // eslint-disable-next-line @typescript-eslint/unbound-method + const original = stream.write + stream.write = (chunk: unknown): boolean => { + logs.push({ source, text: typeof chunk === 'string' ? chunk : String(chunk) }) + return true + } + return () => { stream.write = original } +} + +/** Bounded inspect options: deep enough to be useful, bounded so a pathological value cannot explode the rendering. */ +const INSPECT_OPTIONS = { depth: 4, maxArrayLength: 100, maxStringLength: 10_000 } as const + +/** + * Prepare the program's completion value for the done message: a + * structured-clone-safe value whose rendering fits `maxValueBytes` crosses + * raw; anything else (non-cloneable, or oversized) is REPLACED by its + * bounded `util.inspect` rendering, truncated with an in-band marker — the + * seam contract's "a non-transferable value is replaced by a string + * rendering", extended to oversized ones so a huge return cannot flood the + * host. + * @param value - the program's completion value. + * @param maxValueBytes - the byte cap for the rendered value. + * @returns the done-message fragment: `{}` for `undefined`, else `{ value }`. + */ +export function prepareValue(value: unknown, maxValueBytes: number): { value?: unknown } { + if (value === undefined) return {} + const rendered = typeof value === 'string' ? value : inspect(value, INSPECT_OPTIONS) + let cloneable = true + try { + structuredClone(value) + } catch { + // Only the verdict matters: the value has parts structured clone rejects + // (functions, classes, …) and must cross as its rendering instead. + cloneable = false + } + if (cloneable && Buffer.byteLength(rendered, 'utf8') <= maxValueBytes) return { value } + const capped = rendered.length > maxValueBytes ? `${rendered.slice(0, maxValueBytes)}… [truncated]` : rendered + return { value: capped } +} + +/** One awaited binding call's settlement handles, keyed by call id in the pending map. */ +export interface PendingCall { + resolve(value: unknown): void + reject(error: Error): void +} + +/** + * Route host replies into the pending-call map: each reply settles its call + * at most once, and a reply for an unknown id (stray, or a duplicate answer + * to an id already settled) is ignored. Shared wiring between + * {@link runWorkerMain} and the tests that exercise {@link makeNamespaces} + * standalone. + * @param port - the port whose `message` events carry the replies. + * @param pending - the id-keyed map of unsettled binding calls. + */ +export function wireReplies(port: BootstrapPort, pending: Map): void { + port.on('message', (message: ReplyMessage) => { + const entry = pending.get(message.id) + if (!entry) return + pending.delete(message.id) + if (message.ok) entry.resolve(message.value) + else entry.reject(new Error(message.message)) + }) +} + +/** + * Build the binding namespace objects the program sees: one null-prototype + * global per namespace, each declared name an own enumerable async function + * that bridges over the port (`__proto__`/`constructor`/`toString` are + * ordinary keys, never prototype collisions). A non-cloneable argument + * rejects that one call with a descriptive error; the host's reply (`ok` + * false) rejects it likewise, so a failed tool call surfaces in the program + * as an ordinary promise rejection. + * @param data - the boot payload's namespace declarations (globals + names). + * @param port - the port binding calls are posted to. + * @param pending - the id-keyed map each posted call parks its handles in. + * @param nextId - the shared mutable id counter (worker-issued correlation ids). + * @returns one namespace object per declaration, in declaration order. + */ +export function makeNamespaces( + data: Pick, + port: BootstrapPort, + pending: Map, + nextId: { value: number }, +): Record[] { + return data.namespaces.map(({ global, names }) => { + const namespace = Object.create(null) as Record + for (const name of names) { + Object.defineProperty(namespace, name, { + enumerable: true, + value: (args: unknown): Promise => new Promise((resolve, reject) => { + const id = nextId.value++ + pending.set(id, { resolve, reject }) + try { + port.postMessage({ type: 'call', id, global, name, args }) + } catch (error: unknown) { + pending.delete(id) + reject(new Error(`binding arguments must be structured-cloneable: ${error instanceof Error ? error.message : String(error)}`)) + } + }), + }) + } + return namespace + }) +} + +/** + * Run one program to settlement and post the {@link DoneMessage}: wires the + * reply handler, materializes the namespaces and console shim, compiles the + * type-stripped body as an async function (top-level `await`/`return` + * work), and reports a thrown program error as the done message's `error` + * field. Exactly one done message is ever posted. + * @param port - the message port to the host (the real `parentPort`, or the tests' fake). + * @param data - the boot payload the host sent. + * @param streams - the stream objects whose `write` is captured (the real + * `process.stdout`/`process.stderr` in the worker; fakes in tests). + * @returns resolves after the done message is posted (the tests await it; + * the real entry lets the worker exit naturally). + */ +export async function runWorkerMain( + port: BootstrapPort, + data: WorkerBootData, + streams: { stdout: PatchableStream; stderr: PatchableStream }, +): Promise { + const logs = new LogBuffer(data.maxLogBytes, (entry) => { port.postMessage({ type: 'log', entry }) }) + captureStreamWrites(logs, streams.stdout, 'stdout') + captureStreamWrites(logs, streams.stderr, 'stderr') + + const pending = new Map() + wireReplies(port, pending) + + const nextId = { value: 1 } + const namespaces = makeNamespaces(data, port, pending, nextId) + const consoleShim = makeConsoleShim(logs) + + let done: DoneMessage + try { + // The async function constructor, reached through an instance because + // `AsyncFunction` is not a global. The program body is strict-mode. + /* v8 ignore next -- the arrow exists only to reach the AsyncFunction constructor; it is never invoked. */ + const AsyncFunction = (async () => {}).constructor as new (...args: string[]) => (...fnArgs: unknown[]) => Promise + const fn = new AsyncFunction(...data.namespaces.map(namespace => namespace.global), 'console', `'use strict';\n${data.code}`) + const value = await fn(...namespaces, consoleShim) + done = { type: 'done', ...prepareValue(value, data.maxValueBytes) } + } catch (error: unknown) { + const message = error instanceof Error ? error.stack ?? error.message : String(error) + done = { type: 'done', error: { message } } + } + port.postMessage(done) +} diff --git a/packages/code-runtime/code-runtime-worker/src/index.ts b/packages/code-runtime/code-runtime-worker/src/index.ts new file mode 100644 index 0000000000..dbd0a44966 --- /dev/null +++ b/packages/code-runtime/code-runtime-worker/src/index.ts @@ -0,0 +1,350 @@ +/** + * Worker-thread implementation of the code-execution seam: one fresh Node + * worker per run, executing the model's TypeScript after a host-side + * type-strip, with bindings bridged over the message port. Containment, not + * a security boundary (bash-equivalent trust — see the Code Mode RFC's + * trust-posture section): the worker gets an EMPTY environment, a heap cap, + * and two independent budgets — `computeMs` metered on the worker's + * measured event-loop busy time (a hot loop cannot hide behind a pending + * binding call) and a never-pausing `maxWallMs` ceiling — all funneling + * into `worker.terminate()`, which ends hot synchronous loops too. + * + * @module @deepseek-ai/dsh-code-runtime-worker + */ + +import { Worker } from 'node:worker_threads' +import { stripTypeScriptTypes } from 'node:module' +import { Context } from 'cordis' +import z from 'schemastery' +import { CodeRuntime } from '@deepseek-ai/dsh-code-runtime' +import type { CodeBindingFunction, CodeLogEntry, CodeRunFailure, CodeRunRequest, CodeRunResult } from '@deepseek-ai/dsh-code-runtime' +import type { ReplyMessage, WorkerBootData, WorkerToHost } from './protocol.ts' + +export type { BootstrapPort, PatchableStream } from './bootstrap.ts' +export type { CallMessage, DoneMessage, ReplyMessage, WorkerBootData, WorkerToHost } from './protocol.ts' + +/** Plugin config: every execution cap, changeable from `cordis.yml` (no hardcoded tunables). */ +export interface Config { + /** + * Busy-time budget in milliseconds: the run fails with kind `'timeout'` + * once the worker's MEASURED event-loop active time + * (`worker.performance.eventLoopUtilization()`) exceeds this. Metering + * measured busy time — not wall time, not host-side pending-call + * bookkeeping — is what makes the budget both fair (a program awaiting a + * slow tool accrues nothing) and ungameable (a hot loop accrues whether + * or not a decoy dispatch is in flight). + */ + computeMs?: number + /** + * Wall-clock ceiling in milliseconds; never pauses for anything. The + * backstop for what busy-time cannot see (a program awaiting a promise + * nobody will resolve). + */ + maxWallMs?: number + /** Shared byte budget for captured log text (console + raw stream writes), truncation marked in-band. */ + maxLogBytes?: number + /** Byte cap for the rendered completion value; an oversized or non-cloneable value crosses as a capped string rendering. */ + maxValueBytes?: number + /** The worker's max old-generation heap in MiB (`resourceLimits`); overflow kills the worker, surfacing as kind `'worker-exit'`. */ + maxOldGenerationSizeMb?: number +} + +/** {@link Config} after schemastery fills the defaults (every field present). */ +type ResolvedConfig = Required + +/** + * How often the host samples the worker's event-loop utilization for the + * `computeMs` budget. An internal cadence, not config: the only effect of + * the interval is budget-expiry granularity (a run can overshoot by up to + * one interval), and nothing a deployment could tune here improves that + * without burning host CPU. + */ +const ELU_POLL_INTERVAL_MS = 25 + +/** ECMAScript reserved words that cannot be async-function parameter names — rejected as binding globals. */ +const RESERVED_WORDS = new Set([ + 'await', 'break', 'case', 'catch', 'class', 'const', 'continue', 'debugger', 'default', 'delete', 'do', + 'else', 'enum', 'export', 'extends', 'false', 'finally', 'for', 'function', 'if', 'import', 'in', + 'instanceof', 'new', 'null', 'return', 'super', 'switch', 'this', 'throw', 'true', 'try', 'typeof', + 'var', 'void', 'while', 'with', 'yield', 'let', 'static', 'implements', 'interface', 'package', + 'private', 'protected', 'public', 'arguments', 'eval', +]) + +/** Valid async-function parameter name (the binding global becomes one). */ +const IDENTIFIER = /^[A-Za-z_$][A-Za-z0-9_$]*$/ + +/** + * The shell a program is wrapped in for the type-strip, matching the + * grammatical context it will execute in (an async function body, where + * top-level `return` and `await` are legal — a bare module parse would + * reject the `return`). Strip mode is position-preserving (removed syntax + * becomes whitespace, nothing shifts), so the wrapper survives the strip + * byte-identical and the body slices back out with the model's own + * line/column positions intact. + */ +const STRIP_WRAP = { prefix: 'async function __dsh_program__() {\n', suffix: '\n}' } as const + +/** One in-flight run's host-side state, tracked for disposal. */ +interface LiveRun { + worker: Worker + settle(failure: CodeRunFailure): void + finished: Promise +} + +/** + * The worker entry module. Source runs unbuilt (`src/worker.ts`, loadable + * directly on this repo's Node range via native type stripping — the file + * is erasable-only with type-only relative imports); the built package + * ships it as a sibling bundle (`lib/worker.js`, its own tsdown entry). + * The URL *pathname*'s extension says which world this module is in — + * pathname, because dev-time module runners (vitest) may suffix + * `import.meta.url` with a query string; relative resolution drops it. + */ +/* v8 ignore next -- the './worker.js' arm is the built-lib world, unreachable unbuilt by construction; the built-lib e2e pins it. */ +const WORKER_URL = new URL(new URL(import.meta.url).pathname.endsWith('.ts') ? './worker.ts' : './worker.js', import.meta.url) + +/** Render an unknown thrown value as a message, `Error` or not. */ +function messageOf(error: unknown): string { + return error instanceof Error ? error.message : String(error) +} + +/** + * The shipped {@link CodeRuntime} backend (`ctx.codeRuntime`). Registers as + * the `codeRuntime` service; every cap comes from validated config. See the + * module doc for the containment model and the class JSDoc on the seam for + * the contract this implements (error-as-field, hostile-peer port, + * no cross-run state, dispose to quiescence). + */ +export class WorkerCodeRuntime extends CodeRuntime { + static Config: z = z.object({ + computeMs: z.number().default(60_000), + maxWallMs: z.number().default(600_000), + maxLogBytes: z.number().default(65_536), + maxValueBytes: z.number().default(32_768), + maxOldGenerationSizeMb: z.number().default(512), + }) + + readonly language = 'typescript' + readonly isolation = 'worker-thread' + + private readonly config: ResolvedConfig + private readonly live = new Set() + private disposed = false + + constructor(ctx: Context, config: Config) { + super(ctx) + // Schemastery filled the defaults; the cast records that. Positivity is a + // semantic check the schema's plain number type does not carry. + this.config = config as ResolvedConfig + for (const [key, value] of Object.entries(this.config)) { + if (!(Number.isFinite(value) && value > 0)) throw new Error(`dsh-code-runtime-worker: config.${key} must be a positive number, got ${String(value)}`) + } + ctx.effect(() => () => this.teardown(), 'worker code-runtime teardown') + } + + /** + * Dispose to quiescence: mark the service unusable, fail every in-flight + * run as aborted, and AWAIT each worker's exit so no worker outlives the + * fiber. + */ + private async teardown(): Promise { + this.disposed = true + const runs = [...this.live] + for (const run of runs) run.settle({ kind: 'abort', message: 'runtime disposed' }) + await Promise.all(runs.map(run => run.finished)) + } + + /** + * Execute one program in a fresh worker. Program outcomes — including a + * type-strip syntax error, which never spawns a worker — resolve with + * `result.error`; the method rejects only for seam misuse (a disposed + * runtime, an invalid binding namespace). + * @param request - the program, its bindings, and the abort signal. + * @returns the run's outcome per the seam contract. + */ + async run(request: CodeRunRequest): Promise { + if (this.disposed) throw new Error('dsh-code-runtime-worker: run() after disposal') + const bindings = this.validateBindings(request) + if (request.signal?.aborted) { + return { logs: [], error: { kind: 'abort', message: String(request.signal.reason) } } + } + + let code: string + try { + const stripped = stripTypeScriptTypes(STRIP_WRAP.prefix + request.program + STRIP_WRAP.suffix) + code = stripped.slice(STRIP_WRAP.prefix.length, stripped.length - STRIP_WRAP.suffix.length) + } catch (error: unknown) { + // A program that does not survive the type-strip (syntax error, + // non-erasable syntax like `enum`) is a program failure, reported the + // same way a thrown exception would be — and no worker ever spawns. + return { logs: [], error: { kind: 'exception', message: messageOf(error) } } + } + + return await this.execute(request, code, bindings) + } + + /** Reject (seam misuse) malformed binding namespaces: non-identifier or reserved globals, duplicates, and the `console` collision. */ + private validateBindings(request: CodeRunRequest): Map> { + const bindings = new Map>() + for (const namespace of request.bindings) { + if (!IDENTIFIER.test(namespace.global) || RESERVED_WORDS.has(namespace.global)) { + throw new Error(`dsh-code-runtime-worker: binding global ${JSON.stringify(namespace.global)} is not a usable identifier`) + } + if (namespace.global === 'console' || bindings.has(namespace.global)) { + throw new Error(`dsh-code-runtime-worker: duplicate binding global ${JSON.stringify(namespace.global)}`) + } + bindings.set(namespace.global, namespace.functions) + } + return bindings + } + + /** Spawn the worker for one validated, type-stripped run and drive it to settlement. */ + private execute( + request: CodeRunRequest, + code: string, + bindings: Map>, + ): Promise { + const bootData: WorkerBootData = { + code, + namespaces: [...bindings].map(([global, functions]) => ({ global, names: Object.keys(functions) })), + maxLogBytes: this.config.maxLogBytes, + maxValueBytes: this.config.maxValueBytes, + } + const worker = new Worker(WORKER_URL, { + workerData: bootData, + // Model code gets NO ambient environment — stronger than the scrubbed + // env the defensive-patterns rule requires for spawned commands. + env: {}, + // Hermetic flags too: without this the worker inherits the host + // process's execArgv (a test runner's or tsx's loader hooks), which a + // bare isolate with an empty environment cannot satisfy. The entry + // needs nothing beyond native type stripping, on this repo's whole + // Node range. + execArgv: [], + resourceLimits: { maxOldGenerationSizeMb: this.config.maxOldGenerationSizeMb }, + // Backstop capture: the bootstrap patches JS-level writes into its own + // ordered buffer, so these pipes normally stay silent; anything that + // still arrives (native-level writes) is appended after the done logs. + stdout: true, + stderr: true, + }) + + return new Promise((resolve) => { + let settled = false + const answered = new Set() + const logs: CodeLogEntry[] = [] + const strayLogs: CodeLogEntry[] = [] + let strayBudget = this.config.maxLogBytes + + const captureStray = (source: 'stdout' | 'stderr') => (chunk: Buffer) => { + if (settled || strayBudget <= 0) return + const text = chunk.toString('utf8').slice(0, strayBudget) + strayBudget -= Buffer.byteLength(text, 'utf8') + strayLogs.push({ source, text }) + } + worker.stdout.on('data', captureStray('stdout')) + worker.stderr.on('data', captureStray('stderr')) + + // Settlement: exactly one outcome wins; every path funnels through + // here, cleans up the timers/listeners, terminates the worker, and + // resolves only after the worker actually exited (quiescence). Logs + // streamed eagerly before the settlement are kept — a timed-out or + // killed program still shows the model what it printed. + let finishResolve!: () => void + const finished = new Promise((done) => { finishResolve = done }) + const finish = (result: Omit): void => { + if (settled) return + settled = true + clearInterval(eluTimer) + clearTimeout(wallTimer) + request.signal?.removeEventListener('abort', onAbort) + this.live.delete(live) + void worker.terminate().then(() => { + finishResolve() + resolve({ ...result, logs: [...logs, ...strayLogs] }) + }) + } + + const onDone = (message: WorkerToHost): void => { + if (message.type !== 'done') return + finish({ + ...message.value !== undefined ? { value: message.value } : {}, + ...message.error ? { error: { kind: 'exception' as const, message: message.error.message } } : {}, + }) + } + + const onCall = (message: WorkerToHost): void => { + if (message.type !== 'call' || settled) return + // Hostile-peer rules: a duplicate id is ignored, an unknown name is + // answered with a failure, and a binding throw/reject becomes the + // program-side rejection — contained here, never a host crash. + if (answered.has(message.id)) return + answered.add(message.id) + const reply = (payload: ReplyMessage): void => { + if (settled) return + try { + worker.postMessage(payload) + } catch { + // The reply value failed structured clone; renegotiate as an error + // reply, which is always clone-plain. Nothing else throws here. + worker.postMessage({ type: 'reply', id: message.id, ok: false, message: 'binding resolution is not structured-cloneable' }) + } + } + const record = bindings.get(message.global) + // Own-property lookup only: a forged name like 'constructor' or + // 'hasOwnProperty' must not walk the record's prototype chain and + // reach a callable the consumer never declared. + const fn = record && Object.hasOwn(record, message.name) ? record[message.name] : undefined + if (typeof fn !== 'function') { + reply({ type: 'reply', id: message.id, ok: false, message: `unknown binding ${JSON.stringify(`${message.global}.${message.name}`)}` }) + return + } + void (async () => { + try { + reply({ type: 'reply', id: message.id, ok: true, value: await fn(message.args) }) + } catch (error: unknown) { + reply({ type: 'reply', id: message.id, ok: false, message: messageOf(error) }) + } + })() + } + + worker.on('message', (message: WorkerToHost) => { + if (message.type === 'log' && !settled) logs.push(message.entry) + onCall(message) + onDone(message) + }) + worker.on('error', (error: Error) => { + finish({ error: { kind: 'worker-exit', message: `worker error: ${error.message}` } }) + }) + worker.on('exit', (exitCode: number) => { + finish({ error: { kind: 'worker-exit', message: `worker exited with code ${exitCode} before completing` } }) + }) + + // The compute budget reads the worker's own measured busy time, so a + // hot loop expires it no matter what dispatches are in flight, while a + // program idling on a slow binding accrues nothing. + const eluTimer = setInterval(() => { + const elu = worker.performance.eventLoopUtilization() + if (elu.active > this.config.computeMs) { + finish({ error: { kind: 'timeout', message: `compute budget exhausted (${this.config.computeMs}ms busy)` } }) + } + }, ELU_POLL_INTERVAL_MS) + const wallTimer = setTimeout(() => { + finish({ error: { kind: 'timeout', message: `wall-clock ceiling reached (${this.config.maxWallMs}ms)` } }) + }, this.config.maxWallMs) + const onAbort = (): void => { + finish({ error: { kind: 'abort', message: String(request.signal?.reason) } }) + } + request.signal?.addEventListener('abort', onAbort, { once: true }) + + const live: LiveRun = { + worker, + finished, + settle: (failure: CodeRunFailure) => { finish({ error: failure }) }, + } + this.live.add(live) + }) + } +} + +export default WorkerCodeRuntime diff --git a/packages/code-runtime/code-runtime-worker/src/protocol.ts b/packages/code-runtime/code-runtime-worker/src/protocol.ts new file mode 100644 index 0000000000..85d5113b82 --- /dev/null +++ b/packages/code-runtime/code-runtime-worker/src/protocol.ts @@ -0,0 +1,65 @@ +/** + * Wire protocol between the host runtime and the worker bootstrap. Everything + * crossing the message port is structured-clone-plain and versionless — both + * ends ship in this package, always at the same version. The host treats + * inbound traffic as HOSTILE (the worker runs model code, which can reach + * `parentPort` via `import('node:worker_threads')` and forge any of these + * shapes); the worker treats inbound traffic as trusted. + * + * @module @deepseek-ai/dsh-code-runtime-worker/src/protocol + */ + +import type { CodeLogEntry } from '@deepseek-ai/dsh-code-runtime' + +/** What the host hands the worker at spawn, via `workerData`. */ +export interface WorkerBootData { + /** The type-stripped (plain JS) program body. */ + code: string + /** Binding namespaces to materialize: the global name plus the function names (functions themselves stay host-side). */ + namespaces: { global: string; names: string[] }[] + /** Shared byte budget for captured log text; exceeding it drops further entries after one in-band marker. */ + maxLogBytes: number + /** Byte cap for the rendered completion value (see the value-preparation contract in bootstrap.ts). */ + maxValueBytes: number +} + +/** Worker → host: one bridged binding call. */ +export interface CallMessage { + type: 'call' + /** Worker-issued correlation id; the host answers each id at most once and ignores duplicates. */ + id: number + /** The namespace global the call targets. */ + global: string + /** The function name within the namespace. */ + name: string + /** The single argument, structured-clone-plain. */ + args: unknown +} + +/** Worker → host: one captured log entry, streamed eagerly so output survives a mid-run termination (timeout, abort, OOM). */ +export interface LogMessage { + type: 'log' + entry: CodeLogEntry +} + +/** + * Worker → host: the program settled. `error` carries a program exception + * (the only failure the bootstrap itself can report — budgets, aborts, and + * substrate death are observed host-side). `value` is present only on a + * clean completion that produced one (already size-capped and + * clone-safe per the bootstrap's value preparation). Logs are NOT carried + * here — they streamed eagerly as {@link LogMessage}s. + */ +export interface DoneMessage { + type: 'done' + value?: unknown + error?: { message: string } +} + +/** Every message the worker sends. */ +export type WorkerToHost = CallMessage | LogMessage | DoneMessage + +/** Host → worker: the answer to one {@link CallMessage}. */ +export type ReplyMessage = + | { type: 'reply'; id: number; ok: true; value: unknown } + | { type: 'reply'; id: number; ok: false; message: string } diff --git a/packages/code-runtime/code-runtime-worker/src/worker.ts b/packages/code-runtime/code-runtime-worker/src/worker.ts new file mode 100644 index 0000000000..efaafdb038 --- /dev/null +++ b/packages/code-runtime/code-runtime-worker/src/worker.ts @@ -0,0 +1,20 @@ +/** + * The worker-thread entrypoint: self-executing glue over + * `bootstrap.ts`'s {@link runWorkerMain}, kept to the spawn wiring alone. + * Like `bin.ts` CLI entrypoints, this file executes only inside a spawned + * worker isolate — a place the coverage provider cannot observe — so it is + * excluded from the coverage gate while every line of actual logic lives in + * `bootstrap.ts`, unit-tested in-process; the real spawn path is pinned by + * the integration tests that run genuine workers. + * + * @module @deepseek-ai/dsh-code-runtime-worker/src/worker + */ + +import { parentPort, workerData } from 'node:worker_threads' +import { runWorkerMain } from './bootstrap.ts' +import type { WorkerBootData } from './protocol.ts' + +// A worker always has a parent port; guard loudly rather than run detached. +if (!parentPort) throw new Error('dsh-code-runtime-worker: worker entry loaded outside a worker thread') + +await runWorkerMain(parentPort, workerData as WorkerBootData, { stdout: process.stdout, stderr: process.stderr }) diff --git a/packages/code-runtime/code-runtime-worker/tests/bootstrap.spec.ts b/packages/code-runtime/code-runtime-worker/tests/bootstrap.spec.ts new file mode 100644 index 0000000000..c4e5393634 --- /dev/null +++ b/packages/code-runtime/code-runtime-worker/tests/bootstrap.spec.ts @@ -0,0 +1,214 @@ +import { describe, expect, it } from 'vitest' +import { EventEmitter } from 'node:events' +import { LogBuffer, makeConsoleShim, makeNamespaces, captureStreamWrites, prepareValue, runWorkerMain, wireReplies } from '@deepseek-ai/dsh-code-runtime-worker/src/bootstrap.ts' +import type { BootstrapPort, PatchableStream, PendingCall } from '@deepseek-ai/dsh-code-runtime-worker/src/bootstrap.ts' +import type { ReplyMessage, WorkerToHost } from '@deepseek-ai/dsh-code-runtime-worker/src/protocol.ts' +import type { CodeLogEntry } from '@deepseek-ai/dsh-code-runtime' + +/** + * An in-process stand-in for the worker's parentPort: the test plays the + * HOST side — inspect what the bootstrap posted, feed replies back — so + * every line of worker-side logic runs under coverage without spawning an + * isolate (real-worker behavior is pinned by runtime.spec.ts). + */ +class FakePort implements BootstrapPort { + sent: WorkerToHost[] = [] + private readonly emitter = new EventEmitter() + /** Host-scripted responder; return undefined to leave the call pending. */ + respond: (message: WorkerToHost) => ReplyMessage | undefined = () => undefined + + postMessage(message: WorkerToHost): void { + this.sent.push(message) + const reply = this.respond(message) + if (reply) queueMicrotask(() => this.emitter.emit('message', reply)) + } + + on(event: 'message', listener: (message: ReplyMessage) => void): void { + this.emitter.on(event, listener) + } + + deliver(message: ReplyMessage): void { + this.emitter.emit('message', message) + } + + logs(): CodeLogEntry[] { + return this.sent.filter(message => message.type === 'log').map(message => message.entry) + } + + done(): WorkerToHost | undefined { + return this.sent.find(message => message.type === 'done') + } +} + +function fakeStreams(): { stdout: PatchableStream; stderr: PatchableStream } { + return { stdout: { write: () => true }, stderr: { write: () => true } } +} + +const BOOT = { maxLogBytes: 65_536, maxValueBytes: 32_768 } + +describe('LogBuffer', () => { + it('streams entries to the sink until the byte budget, then emits one marker and drops the rest', () => { + const seen: CodeLogEntry[] = [] + const buffer = new LogBuffer(10, entry => seen.push(entry)) + buffer.push({ source: 'console', level: 'log', text: '12345' }) + buffer.push({ source: 'console', level: 'log', text: '123456' }) + buffer.push({ source: 'console', level: 'log', text: 'dropped' }) + expect(seen.map(entry => entry.text)).toEqual([ + '12345', + '[dsh-code-runtime-worker] log capture truncated at 10 bytes', + ]) + }) +}) + +describe('makeConsoleShim', () => { + it('captures the five levels and renders non-strings inspect-style', () => { + const seen: CodeLogEntry[] = [] + const shim = makeConsoleShim(new LogBuffer(1_000, entry => seen.push(entry))) + shim.log('plain', { a: 1 }) + shim.info('i') + shim.warn('w') + shim.error('e') + shim.debug('d') + expect(seen.map(entry => entry.level)).toEqual(['log', 'info', 'warn', 'error', 'debug']) + expect(seen[0]?.text).toBe('plain { a: 1 }') + expect(seen.every(entry => entry.source === 'console')).toBe(true) + }) +}) + +describe('captureStreamWrites', () => { + it('redirects writes into the buffer and restores on request', () => { + const seen: CodeLogEntry[] = [] + const buffer = new LogBuffer(1_000, entry => seen.push(entry)) + let underlying = '' + const stream: PatchableStream = { write: (chunk: unknown) => { underlying += String(chunk); return true } } + const restore = captureStreamWrites(buffer, stream, 'stdout') + stream.write('captured', 'utf8') + stream.write(Buffer.from('bytes')) + restore() + stream.write('after') + expect(seen.map(entry => entry.text)).toEqual(['captured', 'bytes']) + expect(seen[0]).toMatchObject({ source: 'stdout' }) + expect(underlying).toBe('after') + }) +}) + +describe('prepareValue', () => { + it('omits undefined, passes small cloneable values raw', () => { + expect(prepareValue(undefined, 100)).toEqual({}) + expect(prepareValue({ a: [1, 'two'] }, 100)).toEqual({ value: { a: [1, 'two'] } }) + }) + + it('replaces a non-cloneable value with its rendering', () => { + const { value } = prepareValue({ fn: () => 1 }, 1_000) + expect(typeof value).toBe('string') + expect(value).toContain('fn') + }) + + it('replaces an oversized value with a truncation-marked capped rendering', () => { + const { value } = prepareValue('x'.repeat(50), 10) + expect(value).toBe(`${'x'.repeat(10)}… [truncated]`) + }) +}) + +describe('makeNamespaces', () => { + it('exposes prototype-colliding names as ordinary own properties', async () => { + const port = new FakePort() + port.respond = message => message.type === 'call' ? { type: 'reply', id: message.id, ok: true, value: `${message.name}-ok` } : undefined + const pending = new Map() + wireReplies(port, pending) + const [tools] = makeNamespaces({ namespaces: [{ global: 'tools', names: ['__proto__', 'constructor', 'toString'] }] }, port, pending, { value: 1 }) as [Record Promise>] + expect(Object.getPrototypeOf(tools)).toBeNull() + await expect(tools['__proto__']?.({})).resolves.toBe('__proto__-ok') + await expect(tools['constructor']?.({})).resolves.toBe('constructor-ok') + await expect(tools['toString']?.({})).resolves.toBe('toString-ok') + }) + + it('rejects a non-cloneable argument without leaking the pending entry', async () => { + let firstCall = true + const throwingPort: BootstrapPort = { + // First call throws an Error (the real DataCloneError shape), the + // second a bare string — the rejection renders both. + postMessage: () => { + if (firstCall) { firstCall = false; throw new Error('DataCloneError-ish') } + throw 'raw-clone-failure' + }, + on: () => {}, + } + const pending = new Map() + const [tools] = makeNamespaces({ namespaces: [{ global: 'tools', names: ['x'] }] }, throwingPort, pending, { value: 1 }) as [Record Promise>] + await expect(tools.x?.(() => 1)).rejects.toThrow(/structured-cloneable: DataCloneError-ish/) + await expect(tools.x?.(() => 1)).rejects.toThrow(/structured-cloneable: raw-clone-failure/) + expect(pending.size).toBe(0) + }) +}) + +describe('runWorkerMain', () => { + it('runs a program end-to-end: bindings, console, return value', async () => { + const port = new FakePort() + port.respond = message => message.type === 'call' ? { type: 'reply', id: message.id, ok: true, value: (message.args as { n: number }).n * 2 } : undefined + await runWorkerMain(port, { + ...BOOT, + code: 'const doubled = await tools.double({ n: 21 }); console.log("got", doubled); return { doubled };', + namespaces: [{ global: 'tools', names: ['double'] }], + }, fakeStreams()) + expect(port.logs()).toEqual([{ source: 'console', level: 'log', text: 'got 42' }]) + expect(port.done()).toEqual({ type: 'done', value: { doubled: 42 } }) + }) + + it('reports a thrown program error on the done message', async () => { + const port = new FakePort() + await runWorkerMain(port, { ...BOOT, code: 'throw new Error("boom")', namespaces: [] }, fakeStreams()) + const done = port.done() + expect(done?.type).toBe('done') + expect(done?.type === 'done' ? done.error?.message : undefined).toContain('boom') + expect(done?.type === 'done' ? done.value : undefined).toBeUndefined() + }) + + it('renders non-Error throws and stack-less Errors on the done message', async () => { + const rawPort = new FakePort() + await runWorkerMain(rawPort, { ...BOOT, code: 'throw "raw-throw"', namespaces: [] }, fakeStreams()) + expect(rawPort.done()).toEqual({ type: 'done', error: { message: 'raw-throw' } }) + + const barePort = new FakePort() + await runWorkerMain(barePort, { ...BOOT, code: 'const e = new Error("bare"); e.stack = undefined; throw e', namespaces: [] }, fakeStreams()) + expect(barePort.done()).toEqual({ type: 'done', error: { message: 'bare' } }) + }) + + it('surfaces a host failure reply as a program-side rejection it can catch', async () => { + const port = new FakePort() + port.respond = message => message.type === 'call' ? { type: 'reply', id: message.id, ok: false, message: 'denied by host' } : undefined + await runWorkerMain(port, { + ...BOOT, + code: 'try { await tools.x({}) } catch (error) { return `caught: ${error.message}` }', + namespaces: [{ global: 'tools', names: ['x'] }], + }, fakeStreams()) + expect(port.done()).toEqual({ type: 'done', value: 'caught: denied by host' }) + }) + + it('ignores replies for unknown pending ids', async () => { + const port = new FakePort() + port.respond = (message) => { + if (message.type !== 'call') return undefined + // Deliver a stray reply first; the real one follows. + port.deliver({ type: 'reply', id: 9_999, ok: true, value: 'stray' }) + return { type: 'reply', id: message.id, ok: true, value: 'real' } + } + await runWorkerMain(port, { + ...BOOT, + code: 'return await tools.x({})', + namespaces: [{ global: 'tools', names: ['x'] }], + }, fakeStreams()) + expect(port.done()).toEqual({ type: 'done', value: 'real' }) + }) + + it('captures raw stream writes through the patched process streams', async () => { + const port = new FakePort() + const streams = fakeStreams() + await runWorkerMain(port, { ...BOOT, code: 'return 1', namespaces: [] }, streams) + streams.stdout.write('never seen — already restored? no: patch persists in worker') + // The patch stays installed for the worker's lifetime; writes during the + // program landed in order. Here the program wrote nothing via streams, so + // only the post-run write above went through the patched slot. + expect(port.logs().at(-1)).toMatchObject({ source: 'stdout' }) + }) +}) diff --git a/packages/code-runtime/code-runtime-worker/tests/built-lib.e2e.ts b/packages/code-runtime/code-runtime-worker/tests/built-lib.e2e.ts new file mode 100644 index 0000000000..66ce1830b6 --- /dev/null +++ b/packages/code-runtime/code-runtime-worker/tests/built-lib.e2e.ts @@ -0,0 +1,55 @@ +import { spawn } from 'node:child_process' +import { existsSync } from 'node:fs' +import { join } from 'node:path' +import { fileURLToPath } from 'node:url' +import { describe, expect, it } from 'vitest' + +/** + * BUILT-ARTIFACT smoke for the published package (the real-load-path guard + * from docs/testing.md): the unit suite runs `src/` under vitest, where the + * worker entry resolves to `src/worker.ts` — a consumer runs `lib/index.js` + * under plain `node`, where it must resolve the sibling `lib/worker.js` + * bundle instead. This spawns plain `node` (NOT tsx) from inside the package + * directory and imports the package BY NAME, so resolution flows through the + * real `exports` map exactly as it would from a downstream install; the + * program exercises the type-strip, the worker spawn, the binding bridge, + * and log capture end-to-end through the built bundles. + * + * It build-gates: SKIPS when the built artifacts are absent (suite run + * without `pnpm run build`); CI runs it after the build step. KEYLESS — no + * model is involved. + */ + +const pkgDir = fileURLToPath(new URL('..', import.meta.url)) +const built = ['lib/index.js', 'lib/worker.js'].every(file => existsSync(join(pkgDir, file))) + && existsSync(join(pkgDir, '../code-runtime/lib/index.js')) + +describe.skipIf(!built)('built lib real load path (plain node)', () => { + it('runs a TypeScript program with a binding through lib/index.js and its lib/worker.js entry', async () => { + const script = ` + const { Context } = await import('cordis') + const { WorkerCodeRuntime } = await import('@deepseek-ai/dsh-code-runtime-worker') + const ctx = new Context() + await ctx.plugin(WorkerCodeRuntime, {}) + const result = await ctx.codeRuntime.run({ + program: 'const doubled: number = await tools.double({ n: 21 }); console.log("halfway", doubled); return doubled;', + bindings: [{ global: 'tools', functions: { double: async args => args.n * 2 } }], + }) + console.log(JSON.stringify(result)) + process.exit(0) + ` + const child = spawn(process.execPath, ['--input-type=module', '-e', script], { cwd: pkgDir, stdio: ['ignore', 'pipe', 'pipe'] }) + let stdout = '' + let stderr = '' + child.stdout.on('data', (chunk: Buffer) => { stdout += chunk.toString('utf8') }) + child.stderr.on('data', (chunk: Buffer) => { stderr += chunk.toString('utf8') }) + const exitCode = await new Promise(resolve => child.on('close', resolve)) + + expect(exitCode, `stderr:\n${stderr}`).toBe(0) + const lastLine = stdout.trim().split('\n').at(-1) ?? '' + const result = JSON.parse(lastLine) as { value?: unknown; logs: { source: string; level?: string; text: string }[]; error?: unknown } + expect(result.error).toBeUndefined() + expect(result.value).toBe(42) + expect(result.logs).toContainEqual({ source: 'console', level: 'log', text: 'halfway 42' }) + }) +}) diff --git a/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts b/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts new file mode 100644 index 0000000000..8edfdc6a41 --- /dev/null +++ b/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts @@ -0,0 +1,328 @@ +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import { WorkerCodeRuntime } from '@deepseek-ai/dsh-code-runtime-worker' +import type { Config } from '@deepseek-ai/dsh-code-runtime-worker' +import type { CodeRunResult } from '@deepseek-ai/dsh-code-runtime' + +/** + * Integration suite over REAL worker threads (no mocks — workers are cheap + * and local, per docs/testing.md's real-over-mock policy). Each test builds + * a fresh context so budgets can be tuned per case. + */ +async function setup(config: Config = {}) { + const ctx = new Context() + await ctx.plugin(WorkerCodeRuntime, config) + const runtime = ctx.codeRuntime as WorkerCodeRuntime + return { ctx, runtime } +} + +/** Convenience: one namespace `tools` with the given functions. */ +function tools(functions: Record Promise>) { + return [{ global: 'tools', functions }] +} + +describe('WorkerCodeRuntime — programs and bindings (real workers)', () => { + it('registers with the seam descriptors', async () => { + const { runtime } = await setup() + expect(runtime.language).toBe('typescript') + expect(runtime.isolation).toBe('worker-thread') + }) + + it('runs TypeScript (erasable syntax), captures console/stdout in order, returns the value', async () => { + const { runtime } = await setup() + const result = await runtime.run({ + program: ` + interface Point { x: number; y: number } + const p: Point = { x: 1, y: 2 } as Point; + console.log('point', p); + process.stdout.write('raw-out\\n'); + console.warn('careful'); + return p.x + p.y; + `, + bindings: [], + }) + expect(result.error).toBeUndefined() + expect(result.value).toBe(3) + expect(result.logs.map(entry => [entry.source, entry.level ?? null])).toEqual([ + ['console', 'log'], + ['stdout', null], + ['console', 'warn'], + ]) + expect(result.logs[0]?.text).toBe('point { x: 1, y: 2 }') + }) + + it('bridges binding calls both ways and rejects the program-side call on a host rejection', async () => { + const { runtime } = await setup() + const calls: unknown[] = [] + const result = await runtime.run({ + program: ` + const first = await tools.echo({ n: 1 }); + let caught = ''; + try { await tools.fail({}) } catch (error) { caught = error.message } + let caughtRaw = ''; + try { await tools.failRaw({}) } catch (error) { caughtRaw = error.message } + return { first, caught, caughtRaw }; + `, + bindings: tools({ + echo: async (args) => { calls.push(args); return { echoed: args } }, + fail: async () => { throw new Error('nope') }, + // A non-Error throw: the host renders it, the program still catches. + failRaw: async () => { throw 'raw-nope' }, + }), + }) + expect(result.error).toBeUndefined() + expect(result.value).toEqual({ first: { echoed: { n: 1 } }, caught: 'nope', caughtRaw: 'raw-nope' }) + expect(calls).toEqual([{ n: 1 }]) + }) + + it('reports non-erasable syntax as an exception without spawning a worker', async () => { + const { runtime } = await setup() + const result = await runtime.run({ program: 'enum E { A }\nreturn 1', bindings: [] }) + expect(result.error?.kind).toBe('exception') + expect(result.error?.message).toMatch(/enum|strip/i) + }) + + it('reports a runtime throw as an exception with the message', async () => { + const { runtime } = await setup() + const result = await runtime.run({ program: 'throw new Error("kaboom")', bindings: [] }) + expect(result.error?.kind).toBe('exception') + expect(result.error?.message).toContain('kaboom') + }) + + it('gives the program an EMPTY environment', async () => { + const { runtime } = await setup() + const result = await runtime.run({ program: 'return JSON.stringify(process.env)', bindings: [] }) + expect(result.value).toBe('{}') + }) + + it('replaces a non-cloneable return value with a string rendering', async () => { + const { runtime } = await setup() + const result = await runtime.run({ program: 'return { f: () => 1 }', bindings: [] }) + expect(typeof result.value).toBe('string') + }) + + it('keeps logs streamed before a failure', async () => { + const { runtime } = await setup() + const result = await runtime.run({ + program: 'console.log("before"); throw new Error("after-log")', + bindings: [], + }) + expect(result.error?.kind).toBe('exception') + expect(result.logs.map(entry => entry.text)).toContain('before') + }) +}) + +describe('WorkerCodeRuntime — budgets and containment (real workers)', () => { + it('ends a hot loop at the compute budget — including behind a pending decoy dispatch', async () => { + const { runtime } = await setup({ computeMs: 300, maxWallMs: 30_000 }) + const result = await runtime.run({ + // The decoy: fire a call at a never-resolving binding WITHOUT awaiting, + // then spin. Host-side pending-call bookkeeping would pause a naive + // budget here; measured busy time cannot be fooled. + program: 'void tools.slow({}); for (;;) {}', + bindings: tools({ slow: () => new Promise(() => {}) }), + }) + expect(result.error?.kind).toBe('timeout') + expect(result.error?.message).toContain('compute budget') + }, 15_000) + + it('does not charge time spent awaiting a slow binding against the compute budget', async () => { + const { runtime } = await setup({ computeMs: 250, maxWallMs: 30_000 }) + const result = await runtime.run({ + program: 'return await tools.slow({})', + bindings: tools({ slow: () => new Promise(resolve => setTimeout(() => { resolve('slow-done') }, 700)) }), + }) + expect(result.error).toBeUndefined() + expect(result.value).toBe('slow-done') + }, 15_000) + + it('ends an idle-forever run at the wall-clock ceiling', async () => { + const { runtime } = await setup({ computeMs: 30_000, maxWallMs: 400 }) + const result = await runtime.run({ + program: 'await tools.never({}); return 1', + bindings: tools({ never: () => new Promise(() => {}) }), + }) + expect(result.error?.kind).toBe('timeout') + expect(result.error?.message).toContain('wall-clock ceiling') + }, 15_000) + + it('reports an abort mid-run and stops the worker', async () => { + const { runtime } = await setup() + const controller = new AbortController() + setTimeout(() => { controller.abort('user-cancel') }, 150) + const result = await runtime.run({ program: 'for (;;) {}', bindings: [], signal: controller.signal }) + expect(result.error).toEqual({ kind: 'abort', message: 'user-cancel' }) + }, 15_000) + + it('reports a pre-aborted signal without spawning', async () => { + const { runtime } = await setup() + const controller = new AbortController() + controller.abort('too-late') + const result = await runtime.run({ program: 'return 1', bindings: [], signal: controller.signal }) + expect(result.error).toEqual({ kind: 'abort', message: 'too-late' }) + }) + + it('drops a binding resolution that lands after the run settled', async () => { + const { runtime } = await setup() + const controller = new AbortController() + let replyDelivered!: Promise + const result = await runtime.run({ + program: 'void tools.late({}); for (;;) {}', + bindings: tools({ + // Anchored on invocation: abort 100ms after the call reaches the + // host, resolve 400ms after — by then the run has settled, so the + // resolution's reply hits the post-settlement drop. + late: () => new Promise((resolve) => { + setTimeout(() => { controller.abort('cancel-now') }, 100) + replyDelivered = new Promise(done => setTimeout(() => { resolve('too-late'); done() }, 400)) + }), + }), + signal: controller.signal, + }) + expect(result.error).toEqual({ kind: 'abort', message: 'cancel-now' }) + // Let the late resolution actually fire so its reply executes instead of + // being cancelled with the test. + await replyDelivered + }, 15_000) + + it('contains an OOM under resourceLimits as worker-exit, host process healthy', async () => { + const { runtime } = await setup({ maxOldGenerationSizeMb: 32 }) + const result = await runtime.run({ + program: 'const hog = []; for (;;) hog.push(new Array(1e6).fill(1));', + bindings: [], + }) + expect(result.error?.kind).toBe('worker-exit') + // And the host is fine: run something else. + const after = await runtime.run({ program: 'return "alive"', bindings: [] }) + expect(after.value).toBe('alive') + }, 30_000) + + it('truncates runaway log output at the byte budget with an in-band marker', async () => { + const { runtime } = await setup({ maxLogBytes: 300 }) + const result = await runtime.run({ + program: 'for (let i = 0; i < 1000; i++) console.log("spam line", i); return 1', + bindings: [], + }) + expect(result.logs.at(-1)?.text).toContain('truncated at 300 bytes') + const total = result.logs.reduce((sum, entry) => sum + Buffer.byteLength(entry.text, 'utf8'), 0) + expect(total).toBeLessThan(1_000) + }) + + it('caps an oversized return value with a truncation marker', async () => { + const { runtime } = await setup({ maxValueBytes: 64 }) + const result = await runtime.run({ program: 'return "y".repeat(10_000)', bindings: [] }) + expect(result.value).toBe(`${'y'.repeat(64)}… [truncated]`) + }) + + it('captures pipe writes that bypass the patched write slot as stray logs, capped by the same budget', async () => { + const { runtime } = await setup({ maxLogBytes: 4 }) + const result = await runtime.run({ + // The bootstrap patches the stream instance's own `write`; going + // through the prototype's slot reaches the real pipe underneath, so + // the bytes arrive host-side as stray data. The pauses keep the two + // writes in separate pipe chunks and let them land before settlement. + program: ` + const write = (text) => Object.getPrototypeOf(process.stdout).write.call(process.stdout, text); + write('abcd'); + await new Promise(resolve => setTimeout(resolve, 150)); + write('ef'); + await new Promise(resolve => setTimeout(resolve, 100)); + return 1; + `, + bindings: [], + }) + expect(result.error).toBeUndefined() + expect(result.logs).toContainEqual({ source: 'stdout', text: 'abcd' }) + expect(result.logs.map(entry => entry.text)).not.toContain('ef') + }, 15_000) +}) + +describe('WorkerCodeRuntime — hostile programs (real workers)', () => { + it('survives forged port traffic: unknown binding names, duplicate ids, junk shapes', async () => { + const { runtime } = await setup() + const result = await runtime.run({ + program: ` + const { parentPort } = await import('node:worker_threads'); + parentPort.postMessage({ type: 'call', id: 7777, global: 'tools', name: 'missing', args: {} }); + parentPort.postMessage({ type: 'call', id: 7777, global: 'tools', name: 'missing', args: {} }); + parentPort.postMessage({ type: 'call', id: 7778, global: 'tools', name: 'constructor', args: {} }); + parentPort.postMessage({ type: 'junk' }); + return await tools.real({}); + `, + bindings: tools({ real: async () => 'still-works' }), + }) + expect(result.error).toBeUndefined() + expect(result.value).toBe('still-works') + }) + + it('answers a binding whose resolution cannot be cloned with a failure reply', async () => { + const { runtime } = await setup() + const result = await runtime.run({ + program: 'try { await tools.bad({}) } catch (error) { return error.message }', + bindings: tools({ bad: async () => (() => 1) }), + }) + expect(result.value).toContain('not structured-cloneable') + }) + + it('exposes binding names that collide with Object.prototype as ordinary functions', async () => { + const { runtime } = await setup() + const result = await runtime.run({ + program: 'return [await tools["__proto__"]({}), await tools["constructor"]({}), typeof tools["hasOwnProperty"]]', + // Computed keys: a literal `'__proto__': …` entry would SET the record's + // prototype instead of declaring a binding of that name. + bindings: tools({ ['__proto__']: async () => 'proto-ok', ['constructor']: async () => 'ctor-ok' }), + }) + expect(result.value).toEqual(['proto-ok', 'ctor-ok', 'undefined']) + }) +}) + +describe('WorkerCodeRuntime — seam misuse and lifecycle', () => { + it('rejects invalid binding globals loudly (identifier, reserved word, duplicate, console)', async () => { + const { runtime } = await setup() + const cases: [string, RegExp][] = [ + ['not valid!', /not a usable identifier/], + ['await', /not a usable identifier/], + ['console', /duplicate binding global/], + ] + for (const [global, message] of cases) { + await expect(runtime.run({ program: 'return 1', bindings: [{ global, functions: {} }] })).rejects.toThrow(message) + } + await expect(runtime.run({ + program: 'return 1', + bindings: [{ global: 'tools', functions: {} }, { global: 'tools', functions: {} }], + })).rejects.toThrow(/duplicate binding global/) + }) + + it('rejects config values that are not positive numbers', async () => { + const ctx = new Context() + await expect(ctx.plugin(WorkerCodeRuntime, { computeMs: -1 })).rejects.toThrow(/positive number/) + }) + + it('keeps runs isolated: no state survives from one run to the next', async () => { + const { runtime } = await setup() + await runtime.run({ program: 'globalThis.leak = "value"; return 1', bindings: [] }) + const second = await runtime.run({ program: 'return typeof globalThis.leak', bindings: [] }) + expect(second.value).toBe('undefined') + }) + + it('disposal aborts in-flight runs, awaits worker exit, and rejects later runs', async () => { + const ctx = new Context() + const fiber = await ctx.plugin(WorkerCodeRuntime) + const runtime = ctx.codeRuntime as WorkerCodeRuntime + const inflight: Promise = runtime.run({ program: 'for (;;) {}', bindings: [] }) + // Give the worker a moment to actually start spinning. + await new Promise(resolve => setTimeout(resolve, 200)) + await fiber.dispose() + const result = await inflight + expect(result.error).toEqual({ kind: 'abort', message: 'runtime disposed' }) + await expect(runtime.run({ program: 'return 1', bindings: [] })).rejects.toThrow(/after disposal/) + }, 15_000) + + it('removes ctx.codeRuntime when the providing fiber disposes (HMR safety)', async () => { + const ctx = new Context() + const fiber = await ctx.plugin(WorkerCodeRuntime) + expect(ctx.get('codeRuntime')).toBeInstanceOf(WorkerCodeRuntime) + await fiber.dispose() + expect(ctx.get('codeRuntime')).toBeUndefined() + }) +}) diff --git a/packages/code-runtime/code-runtime-worker/tsconfig.json b/packages/code-runtime/code-runtime-worker/tsconfig.json new file mode 100644 index 0000000000..af962eda4f --- /dev/null +++ b/packages/code-runtime/code-runtime-worker/tsconfig.json @@ -0,0 +1,24 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../../vendor/schemastery" + }, + { + "path": "../code-runtime" + } + ] +} diff --git a/packages/code-runtime/code-runtime-worker/tsdown.config.ts b/packages/code-runtime/code-runtime-worker/tsdown.config.ts new file mode 100644 index 0000000000..234ec4c6b9 --- /dev/null +++ b/packages/code-runtime/code-runtime-worker/tsdown.config.ts @@ -0,0 +1,18 @@ +import { defineConfig } from 'tsdown' + +/** + * Package-shape override (see the root tsdown.config.ts): besides the + * default lib/index.js bundle, the worker BOOTSTRAP ships as its own + * sibling entry — `new Worker(new URL('./worker.js', import.meta.url))` + * loads it as a file, so it cannot be part of the index bundle. + */ +export default defineConfig({ + entry: ['lib/types/index.js', 'lib/types/worker.js'], + outDir: 'lib', + format: ['esm'], + platform: 'node', + target: 'es2024', + fixedExtension: false, + dts: false, + clean: false, +}) diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index ccf2f6978d..03a47d6866 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -133,6 +133,19 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/code-runtime/code-runtime-worker: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-code-runtime': + specifier: workspace:^ + version: link:../code-runtime + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/compact/compact: devDependencies: '@deepseek-ai/dsh-llm': diff --git a/scripts/check-workspace-constraints.ts b/scripts/check-workspace-constraints.ts index f579169ab0..4d7d0802c7 100644 --- a/scripts/check-workspace-constraints.ts +++ b/scripts/check-workspace-constraints.ts @@ -105,11 +105,26 @@ const dshBinPackageFiles = [ 'src', ] as const +// Packages that ship a worker-thread entry as a sibling runtime bundle +// (lib/worker.js, its own tsdown entry): the bootstrap is loaded via +// `new Worker(new URL('./worker.js', import.meta.url))`, so it cannot live +// inside the index bundle and must be published alongside it. +const workerEntryPackages = new Set(['@deepseek-ai/dsh-code-runtime-worker']) + +const dshWorkerPackageFiles = [ + 'lib/index.js', + 'lib/worker.js', + 'lib/types/**/*.d.ts', + 'lib/types/**/*.d.ts.map', + 'src', +] as const + function sameStringList(actual: readonly string[] | undefined, expected: readonly string[]): boolean { return !!actual && actual.length === expected.length && actual.every((value, index) => value === expected[index]) } function expectedDshPackageFiles(manifest: PackageManifest): readonly string[] { + if (manifest.name && workerEntryPackages.has(manifest.name)) return dshWorkerPackageFiles return manifest.bin ? dshBinPackageFiles : dshPackageFiles } diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 6440a672be..2848578f49 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -154,7 +154,7 @@ const SERVICE_ROLES: ServiceRole[] = [ pkg: 'code-runtime', title: 'Code-execution seam', mode: 'seam', - implementations: [], + implementations: ['code-runtime-worker'], consumers: [], note: 'Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the Code Mode RFC specifies the worker-thread backend and the tool-registry consumer).', }, diff --git a/scripts/run-gates.ts b/scripts/run-gates.ts index 6c844f842a..9ab71c6b61 100644 --- a/scripts/run-gates.ts +++ b/scripts/run-gates.ts @@ -310,6 +310,7 @@ function builtBinSmokeGate(): Gate { 'vitest.e2e.config.ts', 'packages/ui/stdio-agent/tests/built-bin.e2e.ts', 'packages/ui/acp-agent/tests/built-bin.e2e.ts', + 'packages/code-runtime/code-runtime-worker/tests/built-lib.e2e.ts', ], { label: 'built-bin smoke', needs: ['build'], diff --git a/tsconfig.build.json b/tsconfig.build.json index 00739a361d..9040d83f2b 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -23,6 +23,7 @@ { "path": "./packages/core/agent-core" }, { "path": "./packages/bash/bash" }, { "path": "./packages/code-runtime/code-runtime" }, + { "path": "./packages/code-runtime/code-runtime-worker" }, { "path": "./packages/compact/compact" }, { "path": "./packages/compact/compact-basic" }, { "path": "./packages/llm/llm-deepseek" }, diff --git a/tsconfig.json b/tsconfig.json index 5d90943c1a..22b2a65a39 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -34,6 +34,7 @@ { "path": "./packages/core/agent-core" }, { "path": "./packages/bash/bash" }, { "path": "./packages/code-runtime/code-runtime" }, + { "path": "./packages/code-runtime/code-runtime-worker" }, { "path": "./packages/llm/llm-deepseek" }, { "path": "./packages/llm/llm-pi-ai" }, { "path": "./packages/bash/bash-local" }, diff --git a/vitest.config.ts b/vitest.config.ts index 4200b5c7f4..11d1454b08 100644 --- a/vitest.config.ts +++ b/vitest.config.ts @@ -31,7 +31,12 @@ export default defineConfig({ // can't import one without booting it, so they are driven by the keyless // Loader-path smoke (a real subprocess) instead of the in-process unit // suite — the same reason `examples/start.ts` sat out of coverage scope. - exclude: ['packages/*/*/src/types.ts', 'packages/*/*/src/bin.ts'], + // `worker.ts` files are the same class as bin.ts: self-executing + // worker-thread entrypoints that only ever run inside a spawned isolate + // the v8 provider cannot observe. They stay thin glue over in-process- + // tested logic (bootstrap.ts) and are pinned by real-worker integration + // tests. + exclude: ['packages/*/*/src/types.ts', 'packages/*/*/src/bin.ts', 'packages/*/*/src/worker.ts'], // 100% or it doesn't merge (docs/testing.md: excessive tests are welcome). // Per-file so a well-covered big file can't subsidize a bare one. // Every v8 ignore comment must carry a reason — see the quality-gates RFC From aa2a7f9a8a03dfbad4b1d7e32c3af67fdbabd513 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Wed, 8 Jul 2026 11:39:57 +0800 Subject: [PATCH 053/232] fix: validate and re-cap all inbound worker-port traffic (Codex round 1) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The host's message listener trusted the compile-time WorkerToHost shape on traffic from a peer that runs model code: postMessage(null) threw in the listener and crashed the host process; forged log/done messages bypassed maxLogBytes/maxValueBytes (the worker-side LogBuffer and prepareValue cap only honest flows); and the error-reply renegotiation re-echoed a forged non-cloneable call id, throwing outside any catch. Every inbound message now passes a runtime shape gate that validates and REBUILDS it field by field (junk drops without a throw; call ids must be numbers, so replies are always clone-plain; forged extra fields never ride along). One host-side ledger bounds everything landing in logs — honest port entries, forged ones, and stray pipe bytes — at the single documented maxLogBytes, with the shared in-band truncation marker emitted host-side when the ledger trips first; the completion value is re-capped host-side through the same prepareValue (with exactly the truncation suffix as slack so honest worker-capped values pass unchanged), and done error text is bounded. Also folds the stray-capture budget into that shared ledger (round-1 finding B: it was a second maxLogBytes on top of the documented shared cap). --- docs/config-catalog.md | 2 +- .../code-runtime-worker/README.md | 4 +- .../code-runtime-worker/src/bootstrap.ts | 3 +- .../code-runtime-worker/src/index.ts | 106 ++++++++++++++++-- .../code-runtime-worker/src/protocol.ts | 13 +++ .../code-runtime-worker/tests/runtime.spec.ts | 77 +++++++++++++ 6 files changed, 192 insertions(+), 13 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 6510aea849..6339911606 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -171,7 +171,7 @@ export interface Config { } ``` -Source: [`packages/code-runtime/code-runtime-worker/src/index.ts:27`](../packages/code-runtime/code-runtime-worker/src/index.ts) +Source: [`packages/code-runtime/code-runtime-worker/src/index.ts:29`](../packages/code-runtime/code-runtime-worker/src/index.ts) ## `@deepseek-ai/dsh-compact-basic` diff --git a/packages/code-runtime/code-runtime-worker/README.md b/packages/code-runtime/code-runtime-worker/README.md index 13bf992bb5..b8f440397a 100644 --- a/packages/code-runtime/code-runtime-worker/README.md +++ b/packages/code-runtime/code-runtime-worker/README.md @@ -21,9 +21,9 @@ Every field is validated (positive numbers) and defaulted; there are no other tu - **One fresh worker per run, no pooling** — a program's world dies with its worker: no cross-run state to log, state bleed unrepresentable, runs reconstructable from the session log alone. - **Type-strip host-side, in execution context** — the program is wrapped in an async-function shell, stripped with `node:module`'s `stripTypeScriptTypes` (erasable syntax only — `enum`/namespaces are rejected as a program `exception` and no worker spawns), and sliced back out byte-positioned; it then executes as the body of an `AsyncFunction`, so top-level `await`/`return` work. -- **The port assumes a hostile peer** — model code can reach `parentPort` and forge traffic, so the host answers each call id at most once, resolves binding names as OWN properties only (a forged `constructor` cannot walk a prototype chain), drops post-settlement replies, and converts a non-cloneable binding resolution into an error reply. Worker-side namespaces are null-prototype with `defineProperty`, so `__proto__`-shaped binding names are ordinary keys. +- **The port assumes a hostile peer** — model code can reach `parentPort` and forge traffic, so every inbound message is shape-validated and REBUILT before anything reads it (`null`, primitives, junk types, and malformed payloads drop without a throw; forged extra fields never ride along), the host answers each call id at most once, resolves binding names as OWN properties only (a forged `constructor` cannot walk a prototype chain), drops post-settlement replies, and converts a non-cloneable binding resolution into an error reply. Forged `log`/`done` messages cannot bypass the caps: one host-side ledger bounds everything that lands in `logs`, and the completion value is re-capped host-side. Worker-side namespaces are null-prototype with `defineProperty`, so `__proto__`-shaped binding names are ordinary keys. - **Two independent budgets, because the peer is hostile** — `computeMs` meters the worker's MEASURED busy time (`worker.performance.eventLoopUtilization()` polling): a hot loop cannot hide behind a pending decoy dispatch, and a program awaiting a slow tool accrues nothing. `maxWallMs` backstops what busy time cannot see (awaiting a promise nobody resolves). Both funnel into `worker.terminate()`, which ends hot synchronous loops too; heap overflow surfaces as the worker's OOM exit (`kind: 'worker-exit'`). -- **Logs stream eagerly** — console/stdout/stderr entries cross the port as they happen, so a timed-out or killed program still shows what it printed; pipe bytes that bypass the patched streams are appended after, under the same byte budget. +- **Logs stream eagerly** — console/stdout/stderr entries cross the port as they happen, so a timed-out or killed program still shows what it printed. ONE shared `maxLogBytes` ledger bounds everything: streamed entries, forged port traffic, and pipe bytes that bypass the patched streams (appended after), with the overflow marked in-band once. - **Empty environment** — the worker gets `env: {}` and `execArgv: []`: no ambient credentials (stronger than the scrubbed-env rule for spawned commands) and no inherited loader flags. - **Dispose to quiescence** — teardown fails in-flight runs as `abort` and AWAITS each worker's exit before resolving. diff --git a/packages/code-runtime/code-runtime-worker/src/bootstrap.ts b/packages/code-runtime/code-runtime-worker/src/bootstrap.ts index 06cef02c7b..ae6bcf25bf 100644 --- a/packages/code-runtime/code-runtime-worker/src/bootstrap.ts +++ b/packages/code-runtime/code-runtime-worker/src/bootstrap.ts @@ -12,6 +12,7 @@ import { inspect } from 'node:util' import type { CodeLogEntry } from '@deepseek-ai/dsh-code-runtime' +import { logTruncationMarker } from './protocol.ts' import type { DoneMessage, ReplyMessage, WorkerBootData, WorkerToHost } from './protocol.ts' /** The port surface the bootstrap needs — satisfied by `parentPort` and by the tests' fake. */ @@ -62,7 +63,7 @@ export class LogBuffer { const cost = Buffer.byteLength(entry.text, 'utf8') if (cost > this.remaining) { this.truncated = true - this.sink({ source: 'stderr', text: `[dsh-code-runtime-worker] log capture truncated at ${this.maxBytes} bytes` }) + this.sink({ source: 'stderr', text: logTruncationMarker(this.maxBytes) }) return } this.remaining -= cost diff --git a/packages/code-runtime/code-runtime-worker/src/index.ts b/packages/code-runtime/code-runtime-worker/src/index.ts index dbd0a44966..a2385ba83e 100644 --- a/packages/code-runtime/code-runtime-worker/src/index.ts +++ b/packages/code-runtime/code-runtime-worker/src/index.ts @@ -18,6 +18,8 @@ import { Context } from 'cordis' import z from 'schemastery' import { CodeRuntime } from '@deepseek-ai/dsh-code-runtime' import type { CodeBindingFunction, CodeLogEntry, CodeRunFailure, CodeRunRequest, CodeRunResult } from '@deepseek-ai/dsh-code-runtime' +import { prepareValue } from './bootstrap.ts' +import { logTruncationMarker } from './protocol.ts' import type { ReplyMessage, WorkerBootData, WorkerToHost } from './protocol.ts' export type { BootstrapPort, PatchableStream } from './bootstrap.ts' @@ -108,6 +110,64 @@ function messageOf(error: unknown): string { return error instanceof Error ? error.message : String(error) } +/** The log sources / console levels the seam vocabulary admits, as runtime sets for inbound-message validation. */ +const LOG_SOURCES = new Set(['console', 'stdout', 'stderr']) +const LOG_LEVELS = new Set(['log', 'info', 'warn', 'error', 'debug']) + +/** + * Runtime shape gate for inbound port traffic. The peer runs MODEL CODE and + * can post anything — `null`, primitives, objects with poisoned fields — so + * the compile-time `WorkerToHost` type means nothing here: everything is + * re-validated and REBUILT field by field (a forged extra field never rides + * along; a non-number call id can never be echoed into a reply). Junk returns + * `undefined` and is dropped — a throw in the host's `message` listener would + * crash the host process. + */ +function parseWorkerMessage(raw: unknown): WorkerToHost | undefined { + if (typeof raw !== 'object' || raw === null) return undefined + const m = raw as Record + switch (m.type) { + case 'call': { + if (typeof m.id !== 'number' || typeof m.global !== 'string' || typeof m.name !== 'string') return undefined + return { type: 'call', id: m.id, global: m.global, name: m.name, args: m.args } + } + case 'log': { + const entry = m.entry + if (typeof entry !== 'object' || entry === null) return undefined + const e = entry as Record + if (typeof e.text !== 'string') return undefined + if (typeof e.source !== 'string' || !LOG_SOURCES.has(e.source)) return undefined + if (e.level !== undefined && (typeof e.level !== 'string' || !LOG_LEVELS.has(e.level))) return undefined + return { + type: 'log', + entry: { + source: e.source as CodeLogEntry['source'], + ...e.level !== undefined ? { level: e.level as Exclude } : {}, + text: e.text, + }, + } + } + case 'done': { + if (m.error === undefined) return { type: 'done', ...m.value !== undefined ? { value: m.value } : {} } + const error = m.error + if (typeof error !== 'object' || error === null) return undefined + const message = (error as Record).message + if (typeof message !== 'string') return undefined + return { type: 'done', ...m.value !== undefined ? { value: m.value } : {}, error: { message } } + } + default: return undefined + } +} + +/** + * Headroom the host's value re-cap grants over `maxValueBytes`: exactly the + * truncation suffix {@link prepareValue} appends, so a value the WORKER + * already capped passes through unchanged instead of being marked twice. + * (A multibyte rendering the worker sliced by characters can still exceed + * this and pick up a second marker — bounded and harmless.) + */ +const VALUE_RENDER_SLACK = Buffer.byteLength('… [truncated]', 'utf8') + /** * The shipped {@link CodeRuntime} backend (`ctx.codeRuntime`). Registers as * the `codeRuntime` service; every cap comes from validated config. See the @@ -234,13 +294,32 @@ export class WorkerCodeRuntime extends CodeRuntime { const answered = new Set() const logs: CodeLogEntry[] = [] const strayLogs: CodeLogEntry[] = [] - let strayBudget = this.config.maxLogBytes + // ONE host-side ledger for everything that lands in `logs`/`strayLogs`, + // whatever the path: honest port entries, FORGED port entries (model + // code posting `log` messages directly, bypassing the worker-side + // LogBuffer), and stray pipe bytes. On the first overflow it emits the + // same in-band marker the worker's LogBuffer would and drops the rest, + // so the documented cap is one shared `maxLogBytes` however it is hit. + let logBudget = this.config.maxLogBytes + let logsTruncated = false + const admit = (entry: CodeLogEntry, sink: CodeLogEntry[]): void => { + if (logsTruncated) return + const cost = Buffer.byteLength(entry.text, 'utf8') + if (cost > logBudget) { + logsTruncated = true + sink.push({ source: 'stderr', text: logTruncationMarker(this.config.maxLogBytes) }) + return + } + logBudget -= cost + sink.push(entry) + } + + // No settled guard: `finish` snapshots the arrays when it resolves, so + // a chunk flushing after settlement mutates only the discarded buffers, + // and the ledger bounds that growth until the pipes close. const captureStray = (source: 'stdout' | 'stderr') => (chunk: Buffer) => { - if (settled || strayBudget <= 0) return - const text = chunk.toString('utf8').slice(0, strayBudget) - strayBudget -= Buffer.byteLength(text, 'utf8') - strayLogs.push({ source, text }) + admit({ source, text: chunk.toString('utf8') }, strayLogs) } worker.stdout.on('data', captureStray('stdout')) worker.stderr.on('data', captureStray('stderr')) @@ -267,9 +346,14 @@ export class WorkerCodeRuntime extends CodeRuntime { const onDone = (message: WorkerToHost): void => { if (message.type !== 'done') return + // Re-cap the completion value HOST-side: the honest path already + // capped it in the worker (prepareValue there), but a forged done + // message bypasses the bootstrap entirely — without this, model code + // could flood the host past maxValueBytes. Honest values pass + // unchanged (see VALUE_RENDER_SLACK); the error text is bounded too. finish({ - ...message.value !== undefined ? { value: message.value } : {}, - ...message.error ? { error: { kind: 'exception' as const, message: message.error.message } } : {}, + ...prepareValue(message.value, this.config.maxValueBytes + VALUE_RENDER_SLACK), + ...message.error ? { error: { kind: 'exception' as const, message: message.error.message.slice(0, this.config.maxValueBytes) } } : {}, }) } @@ -308,8 +392,12 @@ export class WorkerCodeRuntime extends CodeRuntime { })() } - worker.on('message', (message: WorkerToHost) => { - if (message.type === 'log' && !settled) logs.push(message.entry) + worker.on('message', (raw: unknown) => { + // Parse before touching: the peer can post ANY shape, and a throw in + // this listener would crash the host process. Junk drops silently. + const message = parseWorkerMessage(raw) + if (!message) return + if (message.type === 'log' && !settled) admit(message.entry, logs) onCall(message) onDone(message) }) diff --git a/packages/code-runtime/code-runtime-worker/src/protocol.ts b/packages/code-runtime/code-runtime-worker/src/protocol.ts index 85d5113b82..b8ea122c5b 100644 --- a/packages/code-runtime/code-runtime-worker/src/protocol.ts +++ b/packages/code-runtime/code-runtime-worker/src/protocol.ts @@ -63,3 +63,16 @@ export type WorkerToHost = CallMessage | LogMessage | DoneMessage export type ReplyMessage = | { type: 'reply'; id: number; ok: true; value: unknown } | { type: 'reply'; id: number; ok: false; message: string } + +/** + * The in-band marker entry text announcing that log capture stopped at the + * byte budget. Shared wire vocabulary: the worker's LogBuffer emits it when + * ITS budget exhausts, and the host emits the identical text when its own + * ledger drops an entry first (forged port traffic, stray pipe bytes) — so + * a truncated run reads the same however the cap was hit. + * @param maxBytes - the configured `maxLogBytes` the marker names. + * @returns the marker line. + */ +export function logTruncationMarker(maxBytes: number): string { + return `[dsh-code-runtime-worker] log capture truncated at ${maxBytes} bytes` +} diff --git a/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts b/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts index 8edfdc6a41..a2a3aa4091 100644 --- a/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts +++ b/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts @@ -101,6 +101,13 @@ describe('WorkerCodeRuntime — programs and bindings (real workers)', () => { expect(typeof result.value).toBe('string') }) + it('completes a program that returns nothing with no value at all', async () => { + const { runtime } = await setup() + const result = await runtime.run({ program: 'const x = 1', bindings: [] }) + expect(result.error).toBeUndefined() + expect('value' in result).toBe(false) + }) + it('keeps logs streamed before a failure', async () => { const { runtime } = await setup() const result = await runtime.run({ @@ -255,6 +262,76 @@ describe('WorkerCodeRuntime — hostile programs (real workers)', () => { expect(result.value).toBe('still-works') }) + it('survives arbitrary junk on the port: non-objects, junk types, malformed calls, logs, and dones', async () => { + const { runtime } = await setup() + const result = await runtime.run({ + program: ` + const { parentPort } = await import('node:worker_threads'); + for (const junk of [ + null, 42, 'junk', [], + { type: 'nope' }, + { type: 'call' }, + { type: 'call', id: 'x', global: 'tools', name: 'real', args: {} }, + { type: 'call', id: 1e9, global: 7, name: 'real', args: {} }, + { type: 'call', id: 1e9, global: 'tools', name: 7, args: {} }, + { type: 'log' }, + { type: 'log', entry: null }, + { type: 'log', entry: { source: 'stdout', text: 7 } }, + { type: 'log', entry: { source: 'nope', text: 'x' } }, + { type: 'log', entry: { source: 'console', level: 'nope', text: 'x' } }, + { type: 'log', entry: { source: 'console', level: 7, text: 'x' } }, + { type: 'done', error: 5 }, + { type: 'done', error: { message: 5 } }, + ]) parentPort.postMessage(junk); + return await tools.real({}); + `, + bindings: tools({ real: async () => 'still-works' }), + }) + expect(result.error).toBeUndefined() + expect(result.value).toBe('still-works') + expect(result.logs).toEqual([]) + }) + + it('caps forged log floods and forged done values at the configured budgets, dropping forged extra fields', async () => { + const { runtime } = await setup({ maxLogBytes: 200, maxValueBytes: 64 }) + const result = await runtime.run({ + // Forged messages bypass the worker-side LogBuffer and prepareValue + // entirely — only the host-side ledger and re-cap stand between model + // code and an unbounded result. + program: ` + const { parentPort } = await import('node:worker_threads'); + for (let i = 0; i < 50; i++) parentPort.postMessage({ type: 'log', entry: { source: 'stdout', text: 'F'.repeat(100), forged: true } }); + parentPort.postMessage({ type: 'done', value: 'V'.repeat(100000) }); + for (;;) {} + `, + bindings: [], + }) + expect(typeof result.value).toBe('string') + const value = result.value as string + expect(value.startsWith('V'.repeat(64))).toBe(true) + expect(value.endsWith('… [truncated]')).toBe(true) + expect(value.length).toBeLessThan(120) + const marker = '[dsh-code-runtime-worker] log capture truncated at 200 bytes' + const total = result.logs.reduce((sum, entry) => sum + Buffer.byteLength(entry.text, 'utf8'), 0) + expect(total).toBeLessThanOrEqual(200 + Buffer.byteLength(marker, 'utf8')) + expect(result.logs.at(-1)?.text).toBe(marker) + expect(result.logs.every(entry => !('forged' in entry))).toBe(true) + }) + + it('accepts a forged done carrying both value and error (self-sabotage, contained)', async () => { + const { runtime } = await setup() + const result = await runtime.run({ + program: ` + const { parentPort } = await import('node:worker_threads'); + parentPort.postMessage({ type: 'done', value: 'lied', error: { message: 'fake failure' } }); + for (;;) {} + `, + bindings: [], + }) + expect(result.value).toBe('lied') + expect(result.error).toEqual({ kind: 'exception', message: 'fake failure' }) + }) + it('answers a binding whose resolution cannot be cloned with a failure reply', async () => { const { runtime } = await setup() const result = await runtime.run({ From 3265bdbf70bcf3aab31cf5b14362f35961a8b64d Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Wed, 8 Jul 2026 11:43:29 +0800 Subject: [PATCH 054/232] fix(timeout-policy): warn on configured-but-unregistered tool names MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ds-review-bot flagged that a typo'd or stale config key (e.g. web_fech for web_fetch) silently applies the timeout to nothing — the tools/execute lookup just never matches. Mirror dsh-tool-subagent's lifecycle-driven handling of a configured-but-unregistered provider: on every tools/change (and once at load), logger.warn each configured name still absent from ctx.tools, warning each name at most once so a late registration silences it. Not a load-time throw — the tool set is dynamic (cordis.yml load order, HMR), so a real tool may register later. Declare inject = ['tools'] since the plugin now reads ctx.tools synchronously in apply (previously only inside event callbacks). Regenerate config-catalog (Requires: tools) and event-producer-consumer graph. --- docs/config-catalog.md | 4 +- docs/event-producer-consumer.md | 2 +- packages/timeout/timeout-policy/README.md | 2 + packages/timeout/timeout-policy/src/index.ts | 35 +++++++++++ .../tests/timeout-policy.spec.ts | 59 ++++++++++++++++++- 5 files changed, 99 insertions(+), 3 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index d1ee1b8a86..20254f3e35 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -604,6 +604,8 @@ Source: [`packages/core/system-prompt/src/index.ts:179`](../packages/core/system ## `@deepseek-ai/dsh-timeout-policy` +Requires: `tools` + ```ts config-catalog /** * Plugin config: per-tool timeout policy, keyed by the model-facing tool name. @@ -623,7 +625,7 @@ export interface ToolTimeoutPolicy { } ``` -Source: [`packages/timeout/timeout-policy/src/index.ts:61`](../packages/timeout/timeout-policy/src/index.ts) +Source: [`packages/timeout/timeout-policy/src/index.ts:64`](../packages/timeout/timeout-policy/src/index.ts) ## `@deepseek-ai/dsh-tool-fs` diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 0c95164728..ce8e17e851 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -31,7 +31,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:91`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:38`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | | `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:44`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | -| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:118`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | +| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:118`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | [`timeout-policy`](../packages/timeout/timeout-policy) | | `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:97`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`timeout-policy`](../packages/timeout/timeout-policy) | | `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:113`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:77`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | diff --git a/packages/timeout/timeout-policy/README.md b/packages/timeout/timeout-policy/README.md index 9054566cc3..bdf189ba7f 100644 --- a/packages/timeout/timeout-policy/README.md +++ b/packages/timeout/timeout-policy/README.md @@ -25,6 +25,8 @@ Per-tool policy, keyed by the model-facing tool name. There is deliberately **no |---|---|---| | `tools` | `Record` | Per-tool timeout policy; an unlisted tool gets no deadline. `timeoutMs` is required per configured tool and must be positive finite. | +A configured tool name that never registers (a typo like `web_fech`, or a stale key) would silently apply the timeout to nothing. Because the tool set is dynamic (plugins register in `cordis.yml` order, HMR re-registers), this is not a load-time error — a real tool may register later. Instead, on every `tools/change` (and once at load) the plugin `logger.warn`s each configured name still absent from `ctx.tools`, warning each name at most once so a late registration silences it. This mirrors `dsh-tool-subagent`'s lifecycle-driven handling of a configured-but-unregistered provider name. + ### Behavior For a **configured** tool the listener: diff --git a/packages/timeout/timeout-policy/src/index.ts b/packages/timeout/timeout-policy/src/index.ts index d092a6203b..b57091fe91 100644 --- a/packages/timeout/timeout-policy/src/index.ts +++ b/packages/timeout/timeout-policy/src/index.ts @@ -46,6 +46,9 @@ export const TOOL_TIMEOUT = 'TOOL_TIMEOUT' /** Cordis plugin name used by loader diagnostics. */ export const name = 'timeout-policy' +/** The tool registry seam this plugin wraps (`tools/execute`) and reads (`tools/change`, `get`). */ +export const inject = ['tools'] + /** Per-tool timeout policy. `timeoutMs` is required and must be positive finite. */ export interface ToolTimeoutPolicy { /** The per-call cooperative deadline for this tool, in milliseconds. */ @@ -103,6 +106,15 @@ export function toolTimeoutResult(callId: CallId, timeoutMs: number): ToolExecut * `tools/post-execute` sees the caller's own signal, and replaces the result * with {@link toolTimeoutResult} when its own timer fired. An unconfigured tool * delegates untouched. + * + * A configured tool name that is never registered is almost always a typo or a + * stale config key (e.g. `web_fech` for `web_fetch`): the wrapper would then + * silently never fire for the intended tool. Since the tool set is dynamic + * (plugins register in `cordis.yml` order, and HMR re-registers), this cannot + * be a load-time hard error — a real tool may register later. Instead, mirror + * `dsh-tool-subagent`'s lifecycle-driven approach: on every `tools/change` (and + * once at apply), `logger.warn` each configured name still absent from the + * registry, warning each name at most once so a late registration silences it. */ export function apply(ctx: Context, config: Config): void { // schemastery (Config) has already filled `tools` with its {} default. @@ -111,6 +123,29 @@ export function apply(ctx: Context, config: Config): void { assertPositiveFinite(toolName, policy.timeoutMs) } + // Warn once per configured name that no registered tool matches, so a typo'd + // or stale config key is visible instead of silently applying to nothing. A + // name that later registers is dropped from `pending` before it is warned; a + // name that never registers is warned at most once (moved to `warned`), so a + // busy `tools/change` stream cannot spam the same key. + const pending = new Set(Object.keys(resolved.tools)) + const warned = new Set() + const warnUnknownToolNames = (): void => { + const nowUnknown: string[] = [] + for (const name of pending) { + if (ctx.tools.get(name) !== undefined) { pending.delete(name); continue } + if (!warned.has(name)) { warned.add(name); nowUnknown.push(name) } + } + if (nowUnknown.length > 0) { + ctx.logger.warn( + `timeout-policy: configured timeout for unregistered tool(s) ${nowUnknown.map(n => `"${n}"`).join(', ')} ` + + '— check for a typo or stale config key; the timeout applies to nothing until the tool registers.', + ) + } + } + ctx.on('tools/change', warnUnknownToolNames) + warnUnknownToolNames() + ctx.on('tools/execute', async (exec, next): Promise => { const timeoutMs = resolved.tools[exec.name]?.timeoutMs // Unconfigured tool: no deadline, delegate unchanged. diff --git a/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts b/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts index 23017d60f1..967e5659ed 100644 --- a/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts +++ b/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts @@ -84,6 +84,62 @@ describe('timeout-policy config validation', () => { }) }) +describe('timeout-policy unknown-tool-name diagnostics', () => { + it('warns for a configured tool name that is never registered (typo/stale key)', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => undefined) + // web_fech is a typo for web_fetch, and no tool by that name is registered. + await ctx.plugin(timeoutPolicy, { tools: { web_fech: { timeoutMs: 30_000 } } }) + expect(warn).toHaveBeenCalledTimes(1) + expect(warn.mock.calls[0]?.[0]).toContain('"web_fech"') + expect(warn.mock.calls[0]?.[0]).toContain('unregistered tool') + }) + + it('does NOT warn when the configured tool is already registered at load', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + ctx.tools.register(fastTool) + const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => undefined) + await ctx.plugin(timeoutPolicy, { tools: { fast: { timeoutMs: 30_000 } } }) + expect(warn).not.toHaveBeenCalled() + }) + + it('does NOT warn once a configured tool registers LATER (load-order safe)', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => undefined) + // Plugin loads before the tool it configures — the initial check would warn, + // so register first is the interesting case: mount with a not-yet-present + // name, then register it; the tools/change listener must clear it. + await ctx.plugin(timeoutPolicy, { tools: { late: { timeoutMs: 30_000 } } }) + expect(warn).toHaveBeenCalledTimes(1) // absent at load → warned once + warn.mockClear() + ctx.tools.register({ ...fastTool, name: 'late' }) // now it registers + // A subsequent tools/change must NOT re-warn the now-registered name. + ctx.tools.register({ ...fastTool, name: 'other' }) + expect(warn).not.toHaveBeenCalled() + }) + + it('warns at most once per unknown name across repeated tools/change', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => undefined) + await ctx.plugin(timeoutPolicy, { tools: { ghost: { timeoutMs: 30_000 } } }) + expect(warn).toHaveBeenCalledTimes(1) // apply-time check + // Each register/unregister emits tools/change; the ghost stays unknown but + // must not be warned again. + const dispose = ctx.tools.register(fastTool) + dispose() + ctx.tools.register({ ...fastTool, name: 'another' }) + expect(warn).toHaveBeenCalledTimes(1) + }) +}) + describe('timeout-policy delegation (unconfigured / fast)', () => { it('delegates an UNCONFIGURED tool unchanged and does not touch exec.signal', async () => { const ctx = await setup({ other: { timeoutMs: 50 } }) @@ -234,13 +290,14 @@ describe('timeout-policy disposal (HMR safety)', () => { }) describe('dsh-timeout-policy real-load-path guard', () => { - it('has no default export and keeps name/Config through unwrapExports', () => { + it('has no default export and keeps name/inject/Config through unwrapExports', () => { expect('default' in timeoutPolicy).toBe(false) const loader = Object.create(Loader.prototype) as Loader const unwrapped = loader.unwrapExports(timeoutPolicy) as Record expect(unwrapped).toBe(timeoutPolicy) expect(unwrapped.name).toBe('timeout-policy') + expect(unwrapped.inject).toEqual(['tools']) expect(typeof unwrapped.apply).toBe('function') expect(unwrapped.Config).toBeDefined() }) From e20ce35ffb5f20df2874caadef92ce2763e29500 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Wed, 8 Jul 2026 12:55:14 +0800 Subject: [PATCH 055/232] fix: self-contained built bundles + wire-size value cap (bot review) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Two findings from the GitHub review bot on the ready PR: The tsdown two-entry build emitted the shared bootstrap module as a lib/bootstrap-*.js chunk imported by both bundles, which the package.json files whitelist (deliberately exact) omitted — a packed install had dangling imports. The package now runs two single-entry builds, so each bundle inlines its own bootstrap copy and every shipped file is self-contained. prepareValue admitted any cloneable value whose BOUNDED inspect rendering fit maxValueBytes, so a huge container with a compact rendering (a 50k-element array renders as '... N more items') crossed the port raw, bypassing the cap on both sides. The cap now measures the value's real cross-boundary size — exact bytes for strings, the structured-clone wire size (v8.serialize) for everything else — and oversized containers cross as their bounded rendering instead. --- docs/config-catalog.md | 6 ++- .../code-runtime-worker/src/bootstrap.ts | 42 +++++++++++-------- .../code-runtime-worker/src/index.ts | 6 ++- .../tests/bootstrap.spec.ts | 10 +++++ .../code-runtime-worker/tests/runtime.spec.ts | 8 ++++ .../code-runtime-worker/tsdown.config.ts | 39 ++++++++++++----- 6 files changed, 81 insertions(+), 30 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 6339911606..b50ce46d08 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -164,7 +164,11 @@ export interface Config { maxWallMs?: number /** Shared byte budget for captured log text (console + raw stream writes), truncation marked in-band. */ maxLogBytes?: number - /** Byte cap for the rendered completion value; an oversized or non-cloneable value crosses as a capped string rendering. */ + /** + * Byte cap for the completion value, measured by its real cross-boundary + * size (string bytes, or structured-clone wire size); an oversized or + * non-cloneable value crosses as a capped string rendering. + */ maxValueBytes?: number /** The worker's max old-generation heap in MiB (`resourceLimits`); overflow kills the worker, surfacing as kind `'worker-exit'`. */ maxOldGenerationSizeMb?: number diff --git a/packages/code-runtime/code-runtime-worker/src/bootstrap.ts b/packages/code-runtime/code-runtime-worker/src/bootstrap.ts index ae6bcf25bf..62374ccaa0 100644 --- a/packages/code-runtime/code-runtime-worker/src/bootstrap.ts +++ b/packages/code-runtime/code-runtime-worker/src/bootstrap.ts @@ -11,6 +11,7 @@ */ import { inspect } from 'node:util' +import { serialize } from 'node:v8' import type { CodeLogEntry } from '@deepseek-ai/dsh-code-runtime' import { logTruncationMarker } from './protocol.ts' import type { DoneMessage, ReplyMessage, WorkerBootData, WorkerToHost } from './protocol.ts' @@ -119,29 +120,36 @@ export function captureStreamWrites(logs: LogBuffer, stream: PatchableStream, so const INSPECT_OPTIONS = { depth: 4, maxArrayLength: 100, maxStringLength: 10_000 } as const /** - * Prepare the program's completion value for the done message: a - * structured-clone-safe value whose rendering fits `maxValueBytes` crosses - * raw; anything else (non-cloneable, or oversized) is REPLACED by its - * bounded `util.inspect` rendering, truncated with an in-band marker — the - * seam contract's "a non-transferable value is replaced by a string - * rendering", extended to oversized ones so a huge return cannot flood the - * host. + * Prepare the program's completion value for the done message: a value whose + * MEASURED cross-boundary size fits `maxValueBytes` crosses raw — exact + * bytes for a string, the structured-clone wire size (`v8.serialize`) for + * everything else, so a huge container whose BOUNDED inspect rendering + * happens to be small cannot smuggle itself past the cap. Anything else + * (non-cloneable, or oversized) is REPLACED by its bounded `util.inspect` + * rendering, truncated with an in-band marker — the seam contract's "a + * non-transferable value is replaced by a string rendering", extended to + * oversized ones so a huge return cannot flood the host. * @param value - the program's completion value. - * @param maxValueBytes - the byte cap for the rendered value. + * @param maxValueBytes - the byte cap for the value. * @returns the done-message fragment: `{}` for `undefined`, else `{ value }`. */ export function prepareValue(value: unknown, maxValueBytes: number): { value?: unknown } { if (value === undefined) return {} - const rendered = typeof value === 'string' ? value : inspect(value, INSPECT_OPTIONS) - let cloneable = true - try { - structuredClone(value) - } catch { - // Only the verdict matters: the value has parts structured clone rejects - // (functions, classes, …) and must cross as its rendering instead. - cloneable = false + if (typeof value === 'string') { + if (Buffer.byteLength(value, 'utf8') <= maxValueBytes) return { value } + } else { + let size: number | undefined + try { + size = serialize(value).byteLength + } catch { + // Only the verdict matters: the value has parts the structured-clone + // algorithm rejects (functions, classes, …) and must cross as its + // rendering instead. + size = undefined + } + if (size !== undefined && size <= maxValueBytes) return { value } } - if (cloneable && Buffer.byteLength(rendered, 'utf8') <= maxValueBytes) return { value } + const rendered = typeof value === 'string' ? value : inspect(value, INSPECT_OPTIONS) const capped = rendered.length > maxValueBytes ? `${rendered.slice(0, maxValueBytes)}… [truncated]` : rendered return { value: capped } } diff --git a/packages/code-runtime/code-runtime-worker/src/index.ts b/packages/code-runtime/code-runtime-worker/src/index.ts index a2385ba83e..7749fb0318 100644 --- a/packages/code-runtime/code-runtime-worker/src/index.ts +++ b/packages/code-runtime/code-runtime-worker/src/index.ts @@ -45,7 +45,11 @@ export interface Config { maxWallMs?: number /** Shared byte budget for captured log text (console + raw stream writes), truncation marked in-band. */ maxLogBytes?: number - /** Byte cap for the rendered completion value; an oversized or non-cloneable value crosses as a capped string rendering. */ + /** + * Byte cap for the completion value, measured by its real cross-boundary + * size (string bytes, or structured-clone wire size); an oversized or + * non-cloneable value crosses as a capped string rendering. + */ maxValueBytes?: number /** The worker's max old-generation heap in MiB (`resourceLimits`); overflow kills the worker, surfacing as kind `'worker-exit'`. */ maxOldGenerationSizeMb?: number diff --git a/packages/code-runtime/code-runtime-worker/tests/bootstrap.spec.ts b/packages/code-runtime/code-runtime-worker/tests/bootstrap.spec.ts index c4e5393634..685c152b10 100644 --- a/packages/code-runtime/code-runtime-worker/tests/bootstrap.spec.ts +++ b/packages/code-runtime/code-runtime-worker/tests/bootstrap.spec.ts @@ -108,6 +108,16 @@ describe('prepareValue', () => { const { value } = prepareValue('x'.repeat(50), 10) expect(value).toBe(`${'x'.repeat(10)}… [truncated]`) }) + + it('measures a container by its structured-clone wire size, not its bounded rendering', () => { + // The bounded inspect rendering of a huge array is tiny ("... N more + // items"), but its real cross-boundary size is not — the cap must catch + // it, replacing the value with that bounded rendering. + const huge = new Array(50_000).fill(7) + const { value } = prepareValue(huge, 1_000) + expect(typeof value).toBe('string') + expect(value).toContain('more items') + }) }) describe('makeNamespaces', () => { diff --git a/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts b/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts index a2a3aa4091..2d29dc143d 100644 --- a/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts +++ b/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts @@ -221,6 +221,14 @@ describe('WorkerCodeRuntime — budgets and containment (real workers)', () => { expect(result.value).toBe(`${'y'.repeat(64)}… [truncated]`) }) + it('caps a huge container whose bounded rendering is small (wire size, not rendering, is what counts)', async () => { + const { runtime } = await setup() + const result = await runtime.run({ program: 'return new Array(50_000).fill(7)', bindings: [] }) + expect(result.error).toBeUndefined() + expect(typeof result.value).toBe('string') + expect(result.value).toContain('more items') + }) + it('captures pipe writes that bypass the patched write slot as stray logs, capped by the same budget', async () => { const { runtime } = await setup({ maxLogBytes: 4 }) const result = await runtime.run({ diff --git a/packages/code-runtime/code-runtime-worker/tsdown.config.ts b/packages/code-runtime/code-runtime-worker/tsdown.config.ts index 234ec4c6b9..5af39d936a 100644 --- a/packages/code-runtime/code-runtime-worker/tsdown.config.ts +++ b/packages/code-runtime/code-runtime-worker/tsdown.config.ts @@ -4,15 +4,32 @@ import { defineConfig } from 'tsdown' * Package-shape override (see the root tsdown.config.ts): besides the * default lib/index.js bundle, the worker BOOTSTRAP ships as its own * sibling entry — `new Worker(new URL('./worker.js', import.meta.url))` - * loads it as a file, so it cannot be part of the index bundle. + * loads it as a file, so it cannot be part of the index bundle. TWO + * single-entry builds, not one two-entry build: a multi-entry build emits + * the shared bootstrap module as a `lib/bootstrap-*.js` chunk both bundles + * import, which the package.json `files` whitelist (deliberately exact) + * would omit from the packed artifact — each single-entry build inlines its + * own bootstrap copy instead, keeping every shipped file self-contained. */ -export default defineConfig({ - entry: ['lib/types/index.js', 'lib/types/worker.js'], - outDir: 'lib', - format: ['esm'], - platform: 'node', - target: 'es2024', - fixedExtension: false, - dts: false, - clean: false, -}) +export default defineConfig([ + { + entry: ['lib/types/index.js'], + outDir: 'lib', + format: ['esm'], + platform: 'node', + target: 'es2024', + fixedExtension: false, + dts: false, + clean: false, + }, + { + entry: ['lib/types/worker.js'], + outDir: 'lib', + format: ['esm'], + platform: 'node', + target: 'es2024', + fixedExtension: false, + dts: false, + clean: false, + }, +]) From b59d245c7c7a6fa505553de039b1d13e508ef446 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Wed, 8 Jul 2026 12:58:23 +0800 Subject: [PATCH 056/232] =?UTF-8?q?feat:=20Code=20Mode=20=E2=80=94=20the?= =?UTF-8?q?=20registry's=20mode=20config,=20the=20SDK=20codegen,=20and=20t?= =?UTF-8?q?he=20run=5Fcode=20bridge?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The dsh-tools half of the Code Mode RFC (its fourth, final change): the registry gains its first config — mode: native | code | both — and OWNS how its tools reach the model. 'code' contributes exactly one wire tool, run_code, plus a lazy tools:sdk prompt section declaring every other tool as a generated TypeScript API (jsonSchemaToTs: total over the defineTool subset, unknown degradation, lexicographic byte-identical rendering); 'both' ships both representations; 'native' is byte-for-byte the old behavior. Non-native modes fail every assembly loudly without a typescript-language ctx.codeRuntime. run_code's dispatch bridge: JSON-normalizes each binding argument before dispatch (what dispatches is what the tool/code-dispatch event logs — the append can never fail on payload shape; BigInt/circulars reject that one call), serializes all program tool calls through a per-run queue (even Promise.all — no concurrency-safety metadata yet), routes every sub-call through tools/pre-execute → tools/post-execute (a deny rejects the program-side promise), drops sub-call additionalContext (no safe outlet mid-run; pinned), owns a run-scoped abort that follows the outer signal in and fires on settlement (in-flight sub-dispatch aborted, queued abandoned, queue drained before returning), and converts a failed run into CodeRunFailedError → a structured isError carrying kind + captured logs. tool/code-dispatch joins SessionEventMap by declaration merging (log-only; deriveMessages ignores it). The composed surface: the tools config forwards through agent-core and both app packages; examples/code-agent + demo:code run the worker runtime under mode code (keyless boot smoke + a with-key e2e proving the collapsed [run_code] header, the dispatch events, and the file the program wrote); two new snapshot scenarios (code-mode-turn, both-mode-turn) record the SDK section, collapsed header, dispatch events, and result card — each its own header-pinning class (the harness gains per-scenario config overlays and per-class pins). Catalogs, graphs, cookbook, hooks-bridge notes, and the RFC (moved to implemented/, restructured to decision-era headings) updated in the same change. --- docs/capability-seams.md | 3 +- docs/config-catalog.md | 62 ++- docs/cookbook/adding-a-tool.md | 4 + docs/cordis-catalog/events.md | 6 +- docs/cordis-catalog/services.md | 4 +- docs/core-data-structures/code-runtime.md | 2 +- docs/event-producer-consumer.md | 6 +- docs/module-graph.md | 10 +- docs/persistence-catalog.md | 12 + docs/rfc/INDEX.md | 2 +- .../feature/2026-06-15-code-mode.md | 38 +- docs/tool-catalog.md | 26 + docs/tool-execution-pipeline.md | 4 +- examples/AGENTS.md | 3 +- examples/README.md | 6 + .../acp-agent/both-mode.cordis.snapshot.yml | 32 ++ examples/acp-agent/both-mode.cordis.yml | 29 + .../acp-agent/code-mode.cordis.snapshot.yml | 32 ++ examples/acp-agent/code-mode.cordis.yml | 29 + examples/acp-agent/tests/acp.snapshot.ts | 106 +++- examples/acp-agent/tests/snapshot-harness.ts | 10 +- .../tests/snapshots/both-mode-turn/input.json | 7 + .../snapshots/both-mode-turn/session.jsonl | 110 ++++ .../both-mode-turn/stdout.golden.jsonl | 55 ++ .../tests/snapshots/code-mode-turn/input.json | 7 + .../snapshots/code-mode-turn/session.jsonl | 196 +++++++ .../code-mode-turn/stdout.golden.jsonl | 98 ++++ examples/code-agent/README.md | 17 + examples/code-agent/cordis.yml | 84 +++ examples/code-agent/package.json | 7 + examples/code-agent/tests/code-mode.e2e.ts | 115 ++++ .../code-agent/tests/keyless-smoke.e2e.ts | 90 +++ package.json | 1 + packages/code-runtime/README.md | 2 +- .../code-runtime-worker/README.md | 2 +- packages/code-runtime/code-runtime/README.md | 2 +- .../code-runtime/code-runtime/src/index.ts | 2 +- packages/core/agent-core/src/index.ts | 20 +- packages/core/tools/README.md | 21 +- packages/core/tools/package.json | 7 + packages/core/tools/src/code-mode.ts | 280 ++++++++++ packages/core/tools/src/index.ts | 102 +++- packages/core/tools/src/ts-types.ts | 121 ++++ packages/core/tools/tests/code-mode.spec.ts | 523 ++++++++++++++++++ .../core/tools/tests/gen-tool-catalog.spec.ts | 2 +- packages/core/tools/tests/ts-types.spec.ts | 124 +++++ packages/core/tools/tsconfig.json | 6 + packages/hooks/hooks-claude/README.md | 2 +- packages/hooks/hooks-codex/README.md | 2 +- packages/ui/acp-agent/package.json | 2 + packages/ui/acp-agent/src/index.ts | 8 +- packages/ui/stdio-agent/package.json | 2 + packages/ui/stdio-agent/src/index.ts | 5 + pnpm-lock.yaml | 16 + scripts/gen-doc-graphs.ts | 8 +- scripts/gen-tool-catalog.ts | 25 +- 56 files changed, 2395 insertions(+), 102 deletions(-) rename docs/rfc/{proposed => implemented}/feature/2026-06-15-code-mode.md (84%) create mode 100644 examples/acp-agent/both-mode.cordis.snapshot.yml create mode 100644 examples/acp-agent/both-mode.cordis.yml create mode 100644 examples/acp-agent/code-mode.cordis.snapshot.yml create mode 100644 examples/acp-agent/code-mode.cordis.yml create mode 100644 examples/acp-agent/tests/snapshots/both-mode-turn/input.json create mode 100644 examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl create mode 100644 examples/acp-agent/tests/snapshots/both-mode-turn/stdout.golden.jsonl create mode 100644 examples/acp-agent/tests/snapshots/code-mode-turn/input.json create mode 100644 examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl create mode 100644 examples/acp-agent/tests/snapshots/code-mode-turn/stdout.golden.jsonl create mode 100644 examples/code-agent/README.md create mode 100644 examples/code-agent/cordis.yml create mode 100644 examples/code-agent/package.json create mode 100644 examples/code-agent/tests/code-mode.e2e.ts create mode 100644 examples/code-agent/tests/keyless-smoke.e2e.ts create mode 100644 packages/core/tools/src/code-mode.ts create mode 100644 packages/core/tools/src/ts-types.ts create mode 100644 packages/core/tools/tests/code-mode.spec.ts create mode 100644 packages/core/tools/tests/ts-types.spec.ts diff --git a/docs/capability-seams.md b/docs/capability-seams.md index 12ce8033b9..970414d4df 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -102,6 +102,7 @@ flowchart LR svc_bash --> pkg_hooks_claude svc_bash --> pkg_hooks_codex svc_bash --> pkg_tool_bash + svc_codeRuntime --> pkg_tools svc_compact --> pkg_compact_basic svc_fs --> pkg_tool_fs svc_llm --> pkg_agent_loop @@ -139,7 +140,7 @@ flowchart LR | `ctx.agents` | `core` | [`agent`](../packages/core/agent) | - | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp), [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`stdio-agent`](../packages/ui/stdio-agent), [`invariants`](../packages/support/invariants) | - | Owns live Agent handles and the create/resume factory seam. | | `ctx.agentLoop` | `bundle` | [`agent-loop`](../packages/core/agent-loop) | - | [`agent-core`](../packages/core/agent-core) | - | The one concrete loop plugin; extension packages depend on dsh-agent events and services, not on this package. | | `ctx.bash` | `seam` | [`bash`](../packages/bash/bash) | [`bash-local`](../packages/bash/bash-local) | [`tool-bash`](../packages/bash/tool-bash), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | - | The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors can replace bash-local. | -| `ctx.codeRuntime` | `seam` | [`code-runtime`](../packages/code-runtime/code-runtime) | [`code-runtime-worker`](../packages/code-runtime/code-runtime-worker) | - | - | Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the Code Mode RFC specifies the worker-thread backend and the tool-registry consumer). | +| `ctx.codeRuntime` | `seam` | [`code-runtime`](../packages/code-runtime/code-runtime) | [`code-runtime-worker`](../packages/code-runtime/code-runtime-worker) | [`tools`](../packages/core/tools) | - | Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the tool registry consumes it for Code Mode). | | `ctx.fs` | `seam` | [`fs`](../packages/fs/fs) | [`fs-local`](../packages/fs/fs-local) | [`tool-fs`](../packages/fs/tool-fs) | [`fs-policy`](../packages/fs/fs-policy) | tool-fs executes read/write/edit through ctx.fs; fs-policy contributes observed-state checks through the fs/* event gate. | | `ctx.compact` | `seam` | [`compact`](../packages/compact/compact) | [`compact-basic`](../packages/compact/compact-basic) | [`compact-basic`](../packages/compact/compact-basic) | - | The basic backend currently consumes the pre-step event directly; a model-facing compact tool remains deferred. | | `ctx.subagents` | `seam` | [`subagent`](../packages/subagent/subagent) | [`subagent-spawn`](../packages/subagent/subagent-spawn), [`subagent-fork`](../packages/subagent/subagent-fork), [`subagent-acp`](../packages/subagent/subagent-acp), [`subagent-mock`](../packages/support/subagent-mock) | [`tool-subagent`](../packages/subagent/tool-subagent) | - | Providers implement transports; tool-subagent exposes one configured provider as a model-facing tool name. | diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 6339911606..b700431f1d 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -42,7 +42,8 @@ Source: [`packages/ui/acp/src/index.ts:115`](../packages/ui/acp/src/index.ts) * pre-created agent — ACP creates agents at `session/new`); `persona` is the * deployment persona (forwarded to the system-prompt plugin); `toolOrder` is * the explicit model-facing tool order (forwarded to the system-prompt plugin); - * `persistenceRoot` is the JSONL backend's directory. + * `tools` is the tool registry's config (its presentation `mode`, forwarded + * through agent-core); `persistenceRoot` is the JSONL backend's directory. */ export interface Config { /** Model name for ACP-created agents (must have a registered adapter). */ @@ -51,12 +52,16 @@ export interface Config { persona?: string /** Explicit model-facing tool order (the system-prompt plugin's `toolOrder` config; see dsh-system-prompt). */ toolOrder?: string[] + /** Tool-registry config — its presentation `mode` (forwarded through agent-core; see dsh-tools). */ + tools?: ToolsConfig /** Directory the JSONL session backend writes under. Defaults to `./.sessions`. */ persistenceRoot?: string } ``` -Source: [`packages/ui/acp-agent/src/index.ts:49`](../packages/ui/acp-agent/src/index.ts) +Depends on: [`ToolsConfig`](#deepseek-aidsh-tools) + +Source: [`packages/ui/acp-agent/src/index.ts:51`](../packages/ui/acp-agent/src/index.ts) ## `@deepseek-ai/dsh-agent-core` @@ -66,10 +71,12 @@ Source: [`packages/ui/acp-agent/src/index.ts:49`](../packages/ui/acp-agent/src/i * `agents` to the agent loop (an app that pre-creates no agents, like the ACP * bridge, simply omits it), `persona` and `toolOrder` to the system-prompt * plugin (the deployment's persona section and the explicit model-facing tool - * order). Every field is optional INPUT here because each owner's schema - * supplies the default (`[]` / `''` / absent — lexicographic); the schema is - * the INTERSECTION of the owners' own schemas, so validation and defaulting - * can never drift from them. + * order), the `tools` object to the tool registry (its presentation `mode`). + * Every field is optional INPUT here because each owner's schema + * supplies the default (`[]` / `''` / absent — lexicographic / `native`); the + * schema is the INTERSECTION of the owners' own schemas (the registry's + * nested under its `tools` key), so validation and defaulting can never + * drift from them. */ export interface Config { /** The agent-loop `agents` list (see dsh-agent-loop's `Config`). */ @@ -78,12 +85,14 @@ export interface Config { persona?: SystemPromptConfig['persona'] /** The explicit model-facing tool order (see dsh-system-prompt's `Config`). */ toolOrder?: SystemPromptConfig['toolOrder'] + /** The tool registry's config — its presentation `mode` (see dsh-tools' `Config`). */ + tools?: ToolsConfig } ``` -Depends on: [`AgentLoopConfig`](#deepseek-aidsh-agent-loop) · [`SystemPromptConfig`](#deepseek-aidsh-system-prompt) +Depends on: [`AgentLoopConfig`](#deepseek-aidsh-agent-loop) · [`SystemPromptConfig`](#deepseek-aidsh-system-prompt) · [`ToolsConfig`](#deepseek-aidsh-tools) -Source: [`packages/core/agent-core/src/index.ts:69`](../packages/core/agent-core/src/index.ts) +Source: [`packages/core/agent-core/src/index.ts:71`](../packages/core/agent-core/src/index.ts) ## `@deepseek-ai/dsh-agent-loop` @@ -456,6 +465,8 @@ export interface Config { persona?: string /** Explicit model-facing tool order (the system-prompt plugin's `toolOrder` config; see dsh-system-prompt). */ toolOrder?: string[] + /** Tool-registry config — its presentation `mode` (forwarded through agent-core; see dsh-tools). */ + tools?: ToolsConfig /** Directory the JSONL session backend writes under. Defaults to `./.sessions`. */ persistenceRoot?: string /** stdin-chat banner printed once on start. Defaults to `'ready.'`. */ @@ -469,7 +480,9 @@ export interface Config { } ``` -Source: [`packages/ui/stdio-agent/src/index.ts:60`](../packages/ui/stdio-agent/src/index.ts) +Depends on: [`ToolsConfig`](#deepseek-aidsh-tools) + +Source: [`packages/ui/stdio-agent/src/index.ts:61`](../packages/ui/stdio-agent/src/index.ts) ## `@deepseek-ai/dsh-subagent-acp` @@ -703,6 +716,36 @@ export interface Config { Source: [`packages/web/tool-web/src/index.ts:37`](../packages/web/tool-web/src/index.ts) +## `@deepseek-ai/dsh-tools` + +Requires: `systemPrompt` + +```ts config-catalog +/** Plugin config: how the registered tools are presented to the model. */ +export interface Config { + /** + * The presentation mode. `'native'` (the default) contributes every + * registered tool as a wire function definition — byte-for-byte today's + * behavior. `'code'` contributes exactly ONE wire tool, `run_code`, plus + * the generated `tools:sdk` prompt section declaring every other tool as a + * TypeScript API the program calls. `'both'` contributes every native + * definition AND `run_code` + the SDK section. Non-native modes require a + * loaded `ctx.codeRuntime` whose `language` is `'typescript'` — a missing + * or mismatched runtime rejects every prompt assembly with an actionable + * error (misconfiguration fails loud, before any model request). A + * configured `systemPrompt.toolOrder` naming native tools likewise rejects + * every assembly under `'code'` (those names are no longer contributed) — + * a deployment switching modes updates its order config or drops it. + */ + mode?: ToolPresentationMode +} + +/** How the registry presents its tools to the model (see {@link Config.mode}). */ +export type ToolPresentationMode = 'native' | 'code' | 'both' +``` + +Source: [`packages/core/tools/src/index.ts:290`](../packages/core/tools/src/index.ts) + ## `@deepseek-ai/dsh-web` ```ts config-catalog @@ -827,7 +870,6 @@ These load from a `cordis.yml` entry with no `config:` block; they declare no co - `@deepseek-ai/dsh-subagent` ([`packages/subagent/subagent/src/index.ts`](../packages/subagent/subagent/src/index.ts)) - `@deepseek-ai/dsh-tool-bash` — requires `tools` · `bash` · `systemPrompt` ([`packages/bash/tool-bash/src/index.ts`](../packages/bash/tool-bash/src/index.ts)) - `@deepseek-ai/dsh-tool-todo` — requires `tools` ([`packages/todo/tool-todo/src/index.ts`](../packages/todo/tool-todo/src/index.ts)) -- `@deepseek-ai/dsh-tools` — requires `systemPrompt` ([`packages/core/tools/src/index.ts`](../packages/core/tools/src/index.ts)) ## Seam packages (not directly loadable) diff --git a/docs/cookbook/adding-a-tool.md b/docs/cookbook/adding-a-tool.md index 9180d88489..50c7cbccf8 100644 --- a/docs/cookbook/adding-a-tool.md +++ b/docs/cookbook/adding-a-tool.md @@ -49,6 +49,10 @@ Follow tool-bash's background pattern: a `run_in_background` flag returns a task Prefer not to build policy into the tool. The seam is the `tools/pre-execute` gate (deny/ask — see the permission-gate example in [extension-cookbook.md](./extension-cookbook.md)) and the `tools/post-execute` inspect/transform seam, or a sandboxing implementation behind the tool's executor seam. +## Code Mode reaches your tool for free + +Under the registry's non-native `mode` ([Code Mode](../../packages/core/tools/README.md)), a registered tool is ALSO callable from a `run_code` program as `await tools.(args)` — nothing to add. The generated SDK declares your parameters from the same JSON Schema `defineTool` emits (constructs outside that subset degrade to `unknown`), each program call re-enters `execute()` through both waterfalls, and a failed call rejects the program-side promise with your error text. Two consequences worth designing for: your `description` and parameter `description`s become JSDoc a model reads while WRITING CODE, and non-text result blocks reach programs as placeholders (text is the lingua franca of the bridge). + ## How your tool renders in an editor (ACP presentation) Your tool's `execute` returns model-facing content; its **editor card** is a separate, optional concern you declare with two pure display methods on the `defineTool` options. Design this alongside `execute`, not after — an editor (Zed, over the ACP bridge) shows the card, and a tool with no presentation falls back to a bland generic card (title = tool name, raw args as input). diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 8d776a75ef..309545554a 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -307,7 +307,7 @@ A tool was registered or unregistered (the available tool set changed). 'tools/change'(): void ``` -Source: [`packages/core/tools/src/index.ts:97`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:111`](../../packages/core/tools/src/index.ts) ### `tools/post-execute` — waterfall @@ -319,7 +319,7 @@ Waterfall AFTER a tool runs — where hook plugins inspect the result and accept Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:92`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:106`](../../packages/core/tools/src/index.ts) ### `tools/pre-execute` — waterfall @@ -331,7 +331,7 @@ Waterfall BEFORE a tool runs — the gate where sandbox, permission, and hook pl Types: [ToolExecution](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:76`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:90`](../../packages/core/tools/src/index.ts) ## Inherited events (cordis core + loader/hmr/timer) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 26126c4481..4c1c1a18e5 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -213,7 +213,7 @@ Source: [`packages/core/system-prompt/src/index.ts:291`](../../packages/core/sys ## `ctx.tools` — `ToolRegistry` -Tool registry (`ctx.tools`): tool plugins register definitions; the agent loop executes calls through the `tools/pre-execute` → dispatch → `tools/post-execute` pipeline. The registry contributes its schemas into the system-prompt assembly. +Tool registry (`ctx.tools`): tool plugins register definitions; the agent loop executes calls through the `tools/pre-execute` → dispatch → `tools/post-execute` pipeline. The registry contributes its schemas into the system-prompt assembly — WHICH schemas is governed by its `mode` config (see Config.mode); under a non-native mode it also registers the `run_code` tool and the `tools:sdk` prompt section itself. ```ts cordis-catalog register(definition: ToolDefinition): () => void @@ -224,7 +224,7 @@ async execute(exec: ToolExecution): Promise Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:278`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:316`](../../packages/core/tools/src/index.ts) ## `ctx.web` — `WebService` diff --git a/docs/core-data-structures/code-runtime.md b/docs/core-data-structures/code-runtime.md index 1f87e8e8a4..cb1661e02f 100644 --- a/docs/core-data-structures/code-runtime.md +++ b/docs/core-data-structures/code-runtime.md @@ -1,6 +1,6 @@ # Code Runtime -The code-execution seam — a [capability seam](../rfc/implemented/architecture/2026-06-13-capability-seams.md) whose interface ([dsh-code-runtime](../../packages/code-runtime/code-runtime), `ctx.codeRuntime`) runs one model-written program against host-provided async bindings and reports what it printed and returned. Code execution is **one optional capability**, not part of the agent-loop spine — so its vocabulary lives here, not in [core.md](core.md). Backends differ by execution substrate and source language, both readonly descriptors on the service; the worker-thread backend and the tool-registry consumer (Code Mode) are specified in the [Code Mode RFC](../rfc/proposed/feature/2026-06-15-code-mode.md). +The code-execution seam — a [capability seam](../rfc/implemented/architecture/2026-06-13-capability-seams.md) whose interface ([dsh-code-runtime](../../packages/code-runtime/code-runtime), `ctx.codeRuntime`) runs one model-written program against host-provided async bindings and reports what it printed and returned. Code execution is **one optional capability**, not part of the agent-loop spine — so its vocabulary lives here, not in [core.md](core.md). Backends differ by execution substrate and source language, both readonly descriptors on the service; the worker-thread backend and the tool-registry consumer (Code Mode) are specified in the [Code Mode RFC](../rfc/implemented/feature/2026-06-15-code-mode.md). Source: [`packages/code-runtime/code-runtime/src/types.ts`](../../packages/code-runtime/code-runtime/src/types.ts) diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index c10d7caa52..a4d640f44b 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -31,8 +31,8 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:91`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:38`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | | `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:44`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | -| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:97`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | -| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:92`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:76`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:111`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | +| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:106`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:90`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | Maintenance mode: hybrid generated: Cordis event declarations and most producer/listener edges are AST-scanned; dynamic dispatch sites are classified in `scripts/gen-doc-graphs.ts`. diff --git a/docs/module-graph.md b/docs/module-graph.md index fa02da2430..28627c833d 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -112,7 +112,9 @@ flowchart TD pkg_llm_replay --> pkg_llm pkg_llm_replay --> pkg_session pkg_tools --> pkg_agent + pkg_tools --> pkg_code_runtime pkg_tools --> pkg_llm + pkg_tools --> pkg_session pkg_tools --> pkg_system_prompt pkg_compact_basic --> pkg_agent pkg_compact_basic --> pkg_compact @@ -201,12 +203,14 @@ flowchart TD pkg_acp_agent --> pkg_agent_core pkg_acp_agent --> pkg_app_boot pkg_acp_agent --> pkg_session_persistence_jsonl + pkg_acp_agent --> pkg_tools pkg_stdio_agent --> pkg_agent pkg_stdio_agent --> pkg_agent_core pkg_stdio_agent --> pkg_app_boot pkg_stdio_agent --> pkg_llm pkg_stdio_agent --> pkg_session pkg_stdio_agent --> pkg_session_persistence_jsonl + pkg_stdio_agent --> pkg_tools ``` | Package | Group | Depends on | @@ -235,7 +239,7 @@ flowchart TD | [`hook-protocol`](../packages/hooks/hook-protocol) | `hooks` | [`bash`](../packages/bash/bash), [`session`](../packages/core/session) | | [`session-persistence`](../packages/session-persistence/session-persistence) | `session-persistence` | [`session`](../packages/core/session) | | [`llm-replay`](../packages/support/llm-replay) | `support` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | -| [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt) | +| [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`code-runtime`](../packages/code-runtime/code-runtime), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`compact-basic`](../packages/compact/compact-basic) | `compact` | [`agent`](../packages/core/agent), [`compact`](../packages/compact/compact), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | @@ -256,5 +260,5 @@ flowchart TD | [`subagent-mock`](../packages/support/subagent-mock) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent) | | [`subagent-fork`](../packages/subagent/subagent-fork) | `subagent` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | [`subagent-spawn`](../packages/subagent/subagent-spawn) | `subagent` | [`subagent`](../packages/subagent/subagent), [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | -| [`acp-agent`](../packages/ui/acp-agent) | `ui` | [`acp`](../packages/ui/acp), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | -| [`stdio-agent`](../packages/ui/stdio-agent) | `ui` | [`agent`](../packages/core/agent), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | +| [`acp-agent`](../packages/ui/acp-agent) | `ui` | [`acp`](../packages/ui/acp), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`tools`](../packages/core/tools) | +| [`stdio-agent`](../packages/ui/stdio-agent) | `ui` | [`agent`](../packages/core/agent), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`tools`](../packages/core/tools) | diff --git a/docs/persistence-catalog.md b/docs/persistence-catalog.md index 58fd548665..116b0f6038 100644 --- a/docs/persistence-catalog.md +++ b/docs/persistence-catalog.md @@ -209,6 +209,18 @@ Types: [CallId](core-data-structures/core.md) Source: [`packages/core/session/src/types.ts:317`](../packages/core/session/src/types.ts) +#### `tool/code-dispatch` — log-only + +One bridged sub-dispatch from a `run_code` program: the parent `run_code` call id, the deterministic sub-call id (`:code:`), the tool `name` with its JSON-normalized `arguments` — the exact value dispatched, normalized BEFORE dispatch, so this append can never fail on payload shape — whether the sub-call errored, and a bounded `resultSummary` of its model-facing text. Log-only: `deriveMessages()` ignores it, so sub-calls never re-enter model context; persistence and UIs get every call. Appended inside the parent `run_code`'s execution (the bridge drains its queue before returning), so the turn-enclosure invariant holds by construction. + +```ts persistence-catalog +'tool/code-dispatch': { parentCallId: CallId; subCallId: CallId; name: string; arguments: unknown; isError: boolean; resultSummary: string } +``` + +Types: [CallId](core-data-structures/core.md) + +Source: [`packages/core/tools/src/code-mode.ts:36`](../packages/core/tools/src/code-mode.ts) + #### `tool/result` — surface A completed tool call's model-facing result, plus an optional tool-private `meta` presentation payload. `meta` is opaque to the core (`unknown` — the producing tool owns its shape and reads it back in `presentResult`) but MUST be JSON-serializable: `Session.append` runtime-validates all event data with `isJsonValue`, so a non-serializable `meta` is rejected at the source, and the durable log reproduces the identical card on replay. Absent unless the tool attaches one (e.g. `dsh-tool-fs` carries its result-time contextual diff here). diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index b0134ac712..88758efad3 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -10,7 +10,6 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; |---|---| | [Agent Client Protocol (ACP) support — drive the coding agent from external editors](proposed/feature/2026-06-14-acp-agent-client-protocol.md) | 2026-06-14 | | [Multiplex concurrent ACP sessions over one connection](proposed/feature/2026-06-14-acp-multi-session.md) | 2026-06-14 | -| [Code Mode — the model writes TypeScript against the tool registry](proposed/feature/2026-06-15-code-mode.md) | 2026-06-15 | | [Pre-tool input rewrite — a consistent design](proposed/feature/2026-06-30-pre-tool-input-rewrite.md) | 2026-06-30 | ### Simplification @@ -49,6 +48,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | Title | First proposed | |---|---| +| [Code Mode — the model writes TypeScript against the tool registry](implemented/feature/2026-06-15-code-mode.md) | 2026-06-15 | | [Filesystem tool schemas — model-facing read/write/edit shapes](implemented/feature/2026-06-17-filesystem-tool-schemas.md) | 2026-06-17 | | [Rich ACP bash rendering — the terminal card via the `_meta` convention](implemented/feature/2026-06-18-acp-terminal-and-tool-rendering.md) | 2026-06-18 | | [Compaction as a capability seam (abstract contract + basic backend)](implemented/feature/2026-06-18-compaction-capability-seam.md) | 2026-06-18 | diff --git a/docs/rfc/proposed/feature/2026-06-15-code-mode.md b/docs/rfc/implemented/feature/2026-06-15-code-mode.md similarity index 84% rename from docs/rfc/proposed/feature/2026-06-15-code-mode.md rename to docs/rfc/implemented/feature/2026-06-15-code-mode.md index b9a408241e..2f643b432e 100644 --- a/docs/rfc/proposed/feature/2026-06-15-code-mode.md +++ b/docs/rfc/implemented/feature/2026-06-15-code-mode.md @@ -1,6 +1,6 @@ # RFC: Code Mode — the model writes TypeScript against the tool registry -Status: proposed +Status: implemented ## Problem @@ -12,7 +12,7 @@ Cloudflare's [Code Mode](https://blog.cloudflare.com/code-mode/) proposes an alt An earlier draft of this RFC designed Code Mode as an add-on consumer plugin with zero core changes, deferring the execution substrate to a follow-up. Both constraints are dropped here, deliberately. First, the harness is pre-release and optimizes for the correct foundation over blast radius: tool presentation is the registry's own concern, and bolting a second presentation onto it from outside means transforming the registry's contribution after the fact — a waterfall listener whose correctness depends on listener ordering, which fights the [reconstructable-requests](../../implemented/architecture/2026-07-05-reconstructable-requests.md) design instead of riding it (that refactor removed request mutation from `agent/request`, the seam the old draft relied on). Second, the substrate question is answerable now: a Node `worker_threads` runtime gives real containment — separate isolate, empty environment, heap caps, and a `terminate()` that reliably stops a hot synchronous loop — where the old draft's `node:vm` stub had none of those, and it fits the harness's existing trust model (§Trust posture) without a hardening follow-up. -## Proposal +## Decision Three decisions, each elaborated in its own section below: @@ -82,16 +82,25 @@ The worker runtime is **containment, not a security boundary**, and the RFC says The `tools:sdk` section carries the `.d.ts` plus fixed instructions: the program is the body of an async TypeScript function (erasable syntax only — no `enum`/namespaces; type annotations are advisory); call tools as `await tools.name(args)` (quoted access for exotic names); a failed tool call **rejects** with an `Error` carrying the tool's error text — catch it to handle and continue; calls run **sequentially** even under `Promise.all`; emit results via `return` and/or `console.log`, and only that curated output returns to the context — intermediate tool results never do. That last line is the payoff the whole design serves: output-side context cost becomes the model's own editorial decision. On the input side the `.d.ts` is not free — for a large tool surface it can rival the native JSON schemas it replaces (and `'both'` pays for the two side by side) — but it is prefix-stable, so provider prefix caching amortizes it; the win is workload-dependent and the RFC claims no more. -## Plan +## Consequences -Four stacked PRs, each gates-green (`typecheck`, `lint`, `test:coverage`, `test:snapshot`, `doc-sync`, `verify-module-graph`, `build`, `hygiene`) with docs updated in the same change: +The design shipped as four stacked changes — this RFC, the `dsh-code-runtime` interface package, the `dsh-code-runtime-worker` backend, and the `dsh-tools` integration — each gates-green with docs in the same change; review fixes landed on the change that introduced them and merged down. -1. **This RFC revision** (docs-only): the file rewritten as above (renamed `2026-06-15-code-mode.md`, same first-proposed date), regenerated RFC index. -2. **`dsh-code-runtime`** (interface package): the group `packages/code-runtime/`, abstract `CodeRuntime`, vocabulary types, ctx-key declaration; docs in the same change — group README + package README, the `packages/README.md` group table row, the `ctx.codeRuntime` row in [docs/architecture.md](../../../architecture.md)'s service map, and the regenerated cordis catalog (the new service class). Unit tier: HMR safety (dispose removes `ctx.codeRuntime`), contract docs. This package has no behavior to snapshot or e2e; its coverage story is unit-only by design. -3. **`dsh-code-runtime-worker`**: the implementation above, plus the regenerated config catalog (its `Config`). Unit tier (real workers, no mocks — they are cheap and local): output/value capture, log source attribution, error kinds (exception incl. non-erasable syntax, abort, worker-exit under OOM), the two budgets from both sides (a hot loop with an un-awaited pending dispatch still dies at `computeMs` busy time; a program idling on a slow binding outlives `computeMs` and dies only at `maxWallMs`), binding bridge hostility cases (unknown name, duplicate id, post-settlement message, `__proto__`/`constructor`/`toString` binding names), structured-clone fallback, cap truncation, `env` emptiness verified from inside the program, dispose-awaits-exit. A real-load-path test runs the built package (`lib/`) so the worker entry resolves both unbuilt (tsx) and built — the published-bin guard from [docs/testing.md](../../../testing.md). -4. **Native code mode in `dsh-tools`** + the end-to-end surface: mode config, provider switch, `tools:sdk` section, `jsonSchemaToTs`, `run_code` + dispatch bridge + serialization queue, `tool/code-dispatch` event; regenerated tool, config, and persistence catalogs; [docs/architecture.md](../../../architecture.md) (tool-pipeline prose) and the [adding-a-tool cookbook](../../../cookbook/adding-a-tool.md) cross-reference updated in the same change; an `examples/` leaf + `demo:code` script wiring the worker runtime with `mode: 'code'`; move this RFC to `implemented/`. Coverage named per tier now, per the plan-time rule: **unit** — codegen table (DSL subset, quoted names, `unknown` degradation, determinism), provider contribution per mode, `toolOrder × mode` rejection, missing-runtime/wrong-language loud failures, serialization non-overlap (a probe tool records enter/exit under `Promise.all`), abort stops the queue, binding rejection on `isError`, `CodeRunFailedError` → structured `isError`, event payloads, `deriveMessages()` ignores the event, HMR safety (mode flip via config reload removes tool + section); **e2e (with-key, self-skips)** — a real model, `mode: 'code'`, a task requiring two tool calls and curation, asserting the wire tool list was exactly `run_code` and the transcript's dispatch events; **snapshot (keyless replay)** — goldens for a `run_code` turn in `'code'` and `'both'`, pinning the SDK section text, the collapsed header tools, dispatch events, and the result card. +What exists now: -The four PRs land in order (each on the previous); per stacked-review practice, review fixes land on the PR that introduced them and merge down. +- **The seam**: `packages/code-runtime/` — `@deepseek-ai/dsh-code-runtime` (abstract `CodeRuntime`, the vocabulary above, `ctx.codeRuntime`) and `@deepseek-ai/dsh-code-runtime-worker` (the worker-thread backend, every cap a validated config field). Rows in the service map, capability-seams graph, config catalog, and cordis catalog. +- **The registry surface**: `ToolRegistry`'s first config (`mode`), the mode-aware wire contribution, the `tools:sdk` section, `jsonSchemaToTs`/`renderToolsSdk` (exported), `run_code` + the dispatch bridge + `CodeRunFailedError`, and the `tool/code-dispatch` log event (declaration-merged into `SessionEventMap`, regenerated into the persistence catalog; `run_code` in the tool catalog). +- **The composed surface**: the `tools` config forwards through `agent-core` and both app packages (`stdio-agent`, `acp-agent`); `examples/code-agent` + `demo:code` run the worker runtime under `mode: 'code'`; the adding-a-tool cookbook states that a registered tool is reachable from programs for free, and the tool-pipeline doc shows sub-dispatches re-entering both waterfalls. +- **Interactions inherited by deployments**: a `toolOrder` naming native tools rejects every assembly under `'code'` (update or drop the order config when switching modes); sub-call `additionalContext` is dropped by the bridge (a plural context channel is deferred until a real hook needs it through Code Mode); sub-dispatch stays serialized until tools can declare concurrency safety — the same metadata the native parallel-dispatch TODO waits on. + +## Testing + +What the suites pin, per tier: + +- **Unit — worker runtime** (real workers, no mocks): output/value capture and log-source attribution; error kinds (exception incl. non-erasable syntax, abort, worker-exit under OOM); the two budgets from both sides (a hot loop behind an un-awaited pending dispatch dies at `computeMs` busy time; a program idling on a slow binding outlives `computeMs` and dies only at `maxWallMs`); binding-bridge hostility (junk/forged port traffic incl. non-object messages and forged `log`/`done` cap bypass attempts, unknown names, duplicate ids, post-settlement replies, `__proto__`/`constructor`/`toString` binding names); structured-clone fallback and cap truncation; `env` emptiness verified from inside a program; dispose-awaits-exit. A real-load-path e2e runs the BUILT package under plain `node` so the worker entry resolves both unbuilt (tsx) and built — the published-artifact guard from [docs/testing.md](../../../testing.md). +- **Unit — registry integration**: the codegen table (DSL subset, quoted names, `unknown` degradation, byte-identical determinism); provider contribution per mode (`'native'` unchanged, `'code'` exactly `[run_code]`, `'both'` all + `run_code`); `toolOrder × mode` rejection; missing-runtime / wrong-language loud failures; serialization non-overlap (a probe tool records enter/exit under `Promise.all`); abort aborting the in-flight sub-dispatch and abandoning queued ones; binding rejection on `isError` and on JSON-unrepresentable arguments; `CodeRunFailedError` → structured `isError` carrying kind + logs; `tool/code-dispatch` payloads (JSON-normalized arguments identical to what dispatched); `deriveMessages()` ignoring the event; sub-call `additionalContext` suppression; HMR safety (disposing the registry removes the tool and the section). +- **e2e (with-key, self-skips)**: a real model under `mode: 'code'` composes two bash calls in one program (`examples/code-agent/tests/code-mode.e2e.ts`) — every logged `request/header` carries exactly `[run_code]`, the dispatch events land under the parent call, the file the program wrote exists, and the final answer is the curated output. +- **Snapshot (keyless replay)**: goldens for a `run_code` turn under `'code'` and `'both'` (`code-mode-turn`, `both-mode-turn`), each its own header-pinning class — the SDK section text, the collapsed header tool list, the dispatch events, and the result card are committed and replayed. ## Alternatives considered @@ -111,17 +120,6 @@ The four PRs land in order (each on the previous); per stacked-review practice, **A REPL-style persistent kernel** (state survives across `run_code` calls). Rejected for the MVP: cross-call state would be invisible to the session log, breaking the reconstructability guarantee that every request is a pure function of the log; fresh-per-run keeps it. A kernel-style backend remains expressible behind the seam later, with its own logging story. -## Acceptance criteria - -- `mode: 'native'` (and unset) is byte-for-byte today's behavior: same assemblies, same headers, same snapshots. -- Under `mode: 'code'`, the assembled tool list (and thus the logged `request/header`) is exactly `[run_code]`; under `'both'`, every native schema plus `run_code`; the `tools:sdk` section is present in both, absent under `'native'`, and its text is deterministic for a fixed tool set (byte-identical across consecutive assemblies). -- The generated `.d.ts` covers every registered tool except `run_code`, non-identifier names via quoted keys, unsupported schema constructs as `unknown`, without codegen ever throwing. -- A program calling two tools returns only its curated output; each sub-call appears as a `tool/code-dispatch` event ordered by log `seq`, flows through `tools/pre-execute`/`post-execute` (a deny reaches the program as a binding rejection), and never enters derived messages; a binding argument that does not survive JSON normalization (`BigInt`, a circular structure) rejects before dispatch — nothing executes unlogged. -- `Promise.all` over three bindings produces non-overlapping `ctx.tools.execute()` intervals (probe-tool assertion); aborting mid-program stops the worker and dispatches nothing further; a budget expiry during a slow sub-dispatch aborts that dispatch (the probe tool observes its signal fire), `run_code` returns only after the queue drains, and no `tool/code-dispatch` event lands after `run_code`'s own `tool/result` in the log. -- Worker runtime: a hot `for(;;){}` run ends at the `computeMs` busy-time budget with `error.kind: 'timeout'` — including when the program fired an un-awaited binding call first (the pending-RPC decoy); a program idling on a slow binding does not consume `computeMs` and is bounded only by `maxWallMs`; OOM under `resourceLimits` yields `kind: 'worker-exit'` with the host process healthy; `process.env` inside a program is empty; non-erasable syntax yields `kind: 'exception'` without a worker spawn; disposal awaits worker exit. -- Misconfiguration is loud before any model request: non-native mode with no `ctx.codeRuntime`, a runtime whose `language ≠ 'typescript'`, and `toolOrder` naming a non-contributed tool all reject the assembly with actionable messages. -- The demo runs against the real API via `demo:code`; the snapshot goldens replay keylessly; all repo gates pass on every PR of the stack. - ## Risks **The worker is not a hard security boundary.** Deliberate and documented (§Trust posture): posture equals the existing bash tool, containment exceeds it, gating uses the same seams. Deployments needing more need a future `isolation: 'container'` backend — tracked as the seam's designed extension, not a TODO on this design. diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md index a621d3299d..acfb8e0069 100644 --- a/docs/tool-catalog.md +++ b/docs/tool-catalog.md @@ -15,12 +15,38 @@ This table connects model-visible tool names to the plugin package and service s | Tool package | Model-visible names | Requires | Writes / affects | Shipped aliases | Deployment note | | --- | --- | --- | --- | --- | --- | +| `@deepseek-ai/dsh-tools` | `run_code` | `ctx.tools`, `ctx.codeRuntime (execution time)`, `ctx.systemPrompt` | `tool/call`, `one tool/code-dispatch per bridged sub-call`, `tool/result` | - | Registered by the tool registry itself under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the ONLY wire tool; the other registered tools are declared to the model as a generated TypeScript SDK prompt section instead, and a program calls them through port-bridged bindings that dispatch through the ordinary tools/pre-execute → tools/post-execute pipeline, one at a time. | | `@deepseek-ai/dsh-tool-bash` | `bash`, `bash_kill`, `bash_output` | `ctx.tools`, `ctx.bash` | `tool/call`, `tool/result`, `context/message via agent.inject() for background completion notices` | - | The bash/bash_output/bash_kill tools are model-facing consumers of the bash executor seam. | | `@deepseek-ai/dsh-tool-fs` | `edit`, `read`, `write` | `ctx.tools`, `ctx.fs`, `ctx.systemPrompt` | `tool/call`, `fs/write-intent or fs/edit-intent for mutations`, `fs/observed after successful file operations`, `tool/result` | - | The read-before-write/edit policy is added by `@deepseek-ai/dsh-fs-policy` (an `fs/*` event-gate plugin, no schema change); a deployment that loads these tools is expected to also load it. The tool schemas above are identical with or without the policy plugin. | | `@deepseek-ai/dsh-tool-subagent` | `subagent` | `ctx.tools`, `ctx.subagents` | `tool/call`, `tool/result`, `child session events through the chosen provider` | `subagent`, `subagent_fork` | The registered tool name is the load-time `toolName` config (default `subagent`); the schema above is that default. The shipped example agents load this package once per subagent backend, so the model additionally sees `subagent_fork` (bound to the fork backend) with an identical schema — see `examples/coding-agent/cordis.yml` and `examples/acp-agent/cordis.yml`. | | `@deepseek-ai/dsh-tool-todo` | `todo_write` | `ctx.tools`, `owning Agent session` | `tool/call`, `todo/write`, `tool/result` | - | todo_write is session-owned state; UIs render the latest todo/write event as a checklist or ACP plan. | | `@deepseek-ai/dsh-tool-web` | `web_fetch`, `web_search` | `ctx.tools`, `ctx.web`, `ctx.systemPrompt` | `tool/call`, `tool/result` | - | web_search and web_fetch keep provider selection behind ctx.web so model-visible schemas stay stable across backend swaps. | +## `@deepseek-ai/dsh-tools` + +### `run_code` + +Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it. + +```json +{ + "type": "object", + "properties": { + "code": { + "type": "string", + "description": "The program: the body of an async TypeScript function." + } + }, + "required": [ + "code" + ] +} +``` + +Source: [`packages/core/tools/src/code-mode.ts`](../packages/core/tools/src/code-mode.ts) + +Registered by the tool registry itself under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the ONLY wire tool; the other registered tools are declared to the model as a generated TypeScript SDK prompt section instead, and a program calls them through port-bridged bindings that dispatch through the ordinary tools/pre-execute → tools/post-execute pipeline, one at a time. + ## `@deepseek-ai/dsh-tool-bash` ### `bash` diff --git a/docs/tool-execution-pipeline.md b/docs/tool-execution-pipeline.md index db50a3beec..73711afc1f 100644 --- a/docs/tool-execution-pipeline.md +++ b/docs/tool-execution-pipeline.md @@ -14,7 +14,7 @@ flowchart TD denied["deny or ask
tool body skipped"] toolBody["Registered tool execute() body"] fsGate["fs/write-intent or fs/edit-intent
tool-fs mutations only"] - owned["Tool-owned session events
todo/write, fs/observed, hook/invoked, hook/result"] + owned["Tool-owned session events
todo/write, fs/observed, hook/invoked, hook/result, tool/code-dispatch"] post["tools/post-execute waterfall
accept, block, replace, add context"] context["Buffered additionalContext
context/message after all tool results"] toolResult["Session event: tool/result
single model-facing outcome"] @@ -34,6 +34,6 @@ flowchart TD toolResult --> presentResult ``` -Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate, while hook bridges and future permission prompts live on the generic tool waterfalls. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service. +Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate, while hook bridges and future permission prompts live on the generic tool waterfalls. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service. Code Mode rides the same pipeline twice over: `run_code` is itself a registered tool body, and each tool call its program makes re-enters `ctx.tools.execute()` through BOTH waterfalls — serialized one at a time, logged as a `tool/code-dispatch` session event, with a deny surfacing to the program as a binding rejection (a sub-call's `additionalContext` is deliberately dropped — no safe outlet mid-run preserves call/result adjacency). Maintenance mode: curated Mermaid flow; exact tool schemas and event signatures live in generated catalogs. diff --git a/examples/AGENTS.md b/examples/AGENTS.md index 6c1cc717df..177ee18aa0 100644 --- a/examples/AGENTS.md +++ b/examples/AGENTS.md @@ -1,6 +1,6 @@ # AGENTS.md — Examples -Runnable demos that show how the harness is wired. **Examples are NOT workspaces** — each `examples/*/package.json` is a private, dependency-free stub with no build. They are booted as unbuilt `tsx` subprocesses via the cordis Loader reading a `cordis.yml`; the `@deepseek-ai/dsh-*` plugin names in those YAML files resolve through the root `tsconfig.json` `paths` map, not through `node_modules`. +Runnable demos showing how the harness is wired. **Examples are NOT workspaces** — each `examples/*/package.json` is a private, dependency-free stub, never built. They are booted as unbuilt `tsx` subprocesses via the cordis Loader reading a `cordis.yml`; the `@deepseek-ai/dsh-*` plugin names in those YAML files resolve through the root `tsconfig.json` `paths` map, not through `node_modules`. Because examples are not under the `packages/*/src` coverage gate, an example that grows real, reusable *logic* should extract it into a `packages/` package (where it gets the per-file 100% gate and a README). Keep only example-specific glue here: the `cordis.yml` wiring, demo-only mocks/teaching artifacts, and the e2e/snapshot scenarios. There is no `start.ts` — the boot glue (Loader tail, `.env` load, snapshot-mode selection, stdin-dispose lifecycle) lives in each app package's `bin` (`@deepseek-ai/dsh-stdio-agent`, `@deepseek-ai/dsh-acp-agent`), which the `demo:*` scripts invoke against the leaf `cordis.yml`. @@ -21,6 +21,7 @@ A keyless smoke that spawns the example from a temp cwd must set `TSX_TSCONFIG_P |---|---|---| | `echo-agent` | `tests/echo.e2e.ts` — boots the real `cordis.yml`, drives the echo tool round-trip and the direct canned reply | **N/A — keyless by nature** (the `mock-echo` model has no real provider) | | `coding-agent` | `tests/keyless-smoke.e2e.ts` — boots the full real tree (dummy key, no prompt → no model call), asserts banner + clean exit | `tests/{full-loop,coding-task,resume,compaction,todo-write}.e2e.ts` — real model + real bash + real todo_write, world-verified | +| `code-agent` | `tests/keyless-smoke.e2e.ts` — the Code Mode boot guard | `tests/code-mode.e2e.ts` — a real model composes two bash calls in one `run_code` program; collapsed header, dispatch events, written file all verified | | `acp-agent` | `pnpm run test:snapshot` — boots the real ACP subprocess and replays a recorded session keyless (incl. the hook matrix: a scenario per hook point × outcome for BOTH the Claude and Codex bridges — block, deny, ask, context-fold, force-continue); `tests/acp.e2e.ts` also asserts stdout purity without a key | `tests/acp.e2e.ts` — real ACP prompt, verifies a file the agent wrote; `tests/hooks.e2e.ts` — a real `PreToolUse` hook blocks bash, verifies the file is NOT written | See [the root AGENTS.md](../AGENTS.md) for repo-wide conventions and [docs/architecture.md](../docs/architecture.md) for the design. diff --git a/examples/README.md b/examples/README.md index 1e3134ba2d..1b9cdf080e 100644 --- a/examples/README.md +++ b/examples/README.md @@ -19,6 +19,12 @@ A REPL agent demo: DeepSeek V4 + the `read`/`write`/`edit` filesystem tools + th Run with: `pnpm run demo:repl` (needs `DEEPSEEK_API_KEY` in the environment or a gitignored repo-root `.env`). See [coding-agent/README.md](coding-agent/README.md) for details. +## code-agent + +The coding agent flipped to **Code Mode**: the worker-thread code runtime is loaded and the tool registry runs `mode: code`, so the model gets exactly one wire tool — `run_code` — plus a generated TypeScript SDK section, and composes bash/read/write/edit/todo_write by writing a program whose output it curates. + +Run with: `pnpm run demo:code` (needs `DEEPSEEK_API_KEY`). See [code-agent/README.md](code-agent/README.md) for what to try and how it differs from coding-agent. + ## acp-agent An agent demo exposed as an **Agent Client Protocol (ACP)** server over JSON-RPC stdio, via the [`@deepseek-ai/dsh-acp-agent`](../packages/ui/acp-agent) app — drive it from Zed or any other ACP client. Also the home of the keyless snapshot tests. diff --git a/examples/acp-agent/both-mode.cordis.snapshot.yml b/examples/acp-agent/both-mode.cordis.snapshot.yml new file mode 100644 index 0000000000..67044b8066 --- /dev/null +++ b/examples/acp-agent/both-mode.cordis.snapshot.yml @@ -0,0 +1,32 @@ +# Both-mode REPLAY overlay: the same patched tree as both-mode.cordis.yml +# (registry in `mode: both` + the worker code runtime) with the keyless model +# swap from cordis.snapshot.yml (llm-deepseek disabled, llm-replay serving +# the recorded fixture). Patches do not compose across nested includes — +# an outer include's patch can only target entries in the file IT loads — so +# this file patches ./cordis.yml directly with the union of both overlays. +- id: base + name: '@cordisjs/plugin-include' + config: + path: ./cordis.yml + patches: + - id: llm-deepseek + name: '@deepseek-ai/dsh-llm-deepseek' + disabled: true + - id: acp-agent + name: '@deepseek-ai/dsh-acp-agent' + config: + model: deepseek-v4-flash + persistenceRoot: !!js process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? './.sessions' + tools: + mode: both + persona: | + You are a coding assistant powered by the {{model}} model. Your working + directory is {{cwd}}. + + Verify your work by running the code or tests. Keep answers brief and + factual. + - insert: + - id: code-runtime + name: '@deepseek-ai/dsh-code-runtime-worker' + - id: llm-replay + name: '@deepseek-ai/dsh-llm-replay' diff --git a/examples/acp-agent/both-mode.cordis.yml b/examples/acp-agent/both-mode.cordis.yml new file mode 100644 index 0000000000..b449a568ec --- /dev/null +++ b/examples/acp-agent/both-mode.cordis.yml @@ -0,0 +1,29 @@ +# Both-mode RECORD overlay: the live acp-agent tree (./cordis.yml) with two +# load-time patches — the app entry's config gains `tools: { mode: both }` +# (every native tool definition stays on the wire AND run_code + the generated +# TypeScript SDK prompt section ride along) and the worker-thread code runtime joins the +# tree as `ctx.codeRuntime`. The dsh-acp-agent bin boots this file when the +# snapshot harness records the both-mode scenario; DSH_SNAPSHOT=replay swaps +# it for the sibling both-mode.cordis.snapshot.yml. A config patch REPLACES +# the entry's whole config, so the base entry's fields are restated verbatim. +- id: base + name: '@cordisjs/plugin-include' + config: + path: ./cordis.yml + patches: + - id: acp-agent + name: '@deepseek-ai/dsh-acp-agent' + config: + model: deepseek-v4-flash + persistenceRoot: !!js process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? './.sessions' + tools: + mode: both + persona: | + You are a coding assistant powered by the {{model}} model. Your working + directory is {{cwd}}. + + Verify your work by running the code or tests. Keep answers brief and + factual. + - insert: + - id: code-runtime + name: '@deepseek-ai/dsh-code-runtime-worker' diff --git a/examples/acp-agent/code-mode.cordis.snapshot.yml b/examples/acp-agent/code-mode.cordis.snapshot.yml new file mode 100644 index 0000000000..bcaa225eba --- /dev/null +++ b/examples/acp-agent/code-mode.cordis.snapshot.yml @@ -0,0 +1,32 @@ +# Code Mode REPLAY overlay: the same patched tree as code-mode.cordis.yml +# (registry in `mode: code` + the worker code runtime) with the keyless model +# swap from cordis.snapshot.yml (llm-deepseek disabled, llm-replay serving +# the recorded fixture). Patches do not compose across nested includes — +# an outer include's patch can only target entries in the file IT loads — so +# this file patches ./cordis.yml directly with the union of both overlays. +- id: base + name: '@cordisjs/plugin-include' + config: + path: ./cordis.yml + patches: + - id: llm-deepseek + name: '@deepseek-ai/dsh-llm-deepseek' + disabled: true + - id: acp-agent + name: '@deepseek-ai/dsh-acp-agent' + config: + model: deepseek-v4-flash + persistenceRoot: !!js process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? './.sessions' + tools: + mode: code + persona: | + You are a coding assistant powered by the {{model}} model. Your working + directory is {{cwd}}. + + Verify your work by running the code or tests. Keep answers brief and + factual. + - insert: + - id: code-runtime + name: '@deepseek-ai/dsh-code-runtime-worker' + - id: llm-replay + name: '@deepseek-ai/dsh-llm-replay' diff --git a/examples/acp-agent/code-mode.cordis.yml b/examples/acp-agent/code-mode.cordis.yml new file mode 100644 index 0000000000..244cad9209 --- /dev/null +++ b/examples/acp-agent/code-mode.cordis.yml @@ -0,0 +1,29 @@ +# Code Mode RECORD overlay: the live acp-agent tree (./cordis.yml) with two +# load-time patches — the app entry's config gains `tools: { mode: code }` +# (the registry offers exactly one wire tool, run_code, plus the generated +# TypeScript SDK prompt section) and the worker-thread code runtime joins the +# tree as `ctx.codeRuntime`. The dsh-acp-agent bin boots this file when the +# snapshot harness records the code-mode scenarios; DSH_SNAPSHOT=replay swaps +# it for the sibling code-mode.cordis.snapshot.yml. A config patch REPLACES +# the entry's whole config, so the base entry's fields are restated verbatim. +- id: base + name: '@cordisjs/plugin-include' + config: + path: ./cordis.yml + patches: + - id: acp-agent + name: '@deepseek-ai/dsh-acp-agent' + config: + model: deepseek-v4-flash + persistenceRoot: !!js process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? './.sessions' + tools: + mode: code + persona: | + You are a coding assistant powered by the {{model}} model. Your working + directory is {{cwd}}. + + Verify your work by running the code or tests. Keep answers brief and + factual. + - insert: + - id: code-runtime + name: '@deepseek-ai/dsh-code-runtime-worker' diff --git a/examples/acp-agent/tests/acp.snapshot.ts b/examples/acp-agent/tests/acp.snapshot.ts index bde4f4dbb9..fbc6af65b4 100644 --- a/examples/acp-agent/tests/acp.snapshot.ts +++ b/examples/acp-agent/tests/acp.snapshot.ts @@ -69,18 +69,36 @@ interface Scenario { * Whether THIS scenario's fixtures keep the full request-header content (the * composed system prompt and tool schema list on `request/header` / * `request/header-delta` events) and compare it verbatim. Exactly one - * scenario pins it; every other scenario stores and compares that content as + * scenario pins it PER HEADER CLASS ({@link headerClass}); every other + * scenario of that class stores and compares that content as * `{{system}}`/`{{tools}}` tokens ({@link scrubRequestHeaders}), so a system - * prompt or tool-schema change shows up as ONE committed-fixture diff, not - * one per scenario. One pin suffices because header composition is - * suite-uniform (parent, spawn child, and fork child all compose the same - * prompt-modulo-cwd and the same tools) — and that premise is ASSERTED, not - * assumed: every non-pinning run's live headers must equal the pinned - * fixture's (normalized), so a session-dependent header (say, a restricted - * subagent toolset) fails loud until it gets its own pinning scenario. + * prompt or tool-schema change shows up as ONE committed-fixture diff per + * class, not one per scenario. One pin per class suffices because header + * composition is class-uniform (parent, spawn child, and fork child all + * compose the same prompt-modulo-cwd and the same tools) — and that premise + * is ASSERTED, not assumed: every non-pinning run's live headers must equal + * its class's pinned fixture's (normalized), so a session-dependent header + * (say, a restricted subagent toolset) fails loud until it gets its own + * pinning scenario. * Defaults to false. */ pinsHeader?: boolean + /** + * Which header-composition class this scenario belongs to. Scenarios that + * boot the same config compose the same header; each class has exactly one + * {@link pinsHeader} scenario, and the uniformity guard compares every + * other member against ITS class's pin. Defaults to `'default'` (the + * example's stock `cordis.yml`); the Code Mode scenarios — booting overlay + * configs whose tool list and prompt sections differ by construction — + * carry their own classes. + */ + headerClass?: string + /** + * Alternate live-config basename under `examples/acp-agent/` for this + * scenario's boot (the replay swap derives `*cordis.snapshot.yml` from it). + * Defaults to `cordis.yml`. + */ + configBase?: string } const SCENARIOS: Scenario[] = [ @@ -146,11 +164,28 @@ const SCENARIOS: Scenario[] = [ { name: 'hook-codex-posttool-block', hasModelTurn: true, recorded: true }, { name: 'hook-codex-posttool-context', hasModelTurn: true, recorded: true }, { name: 'hook-codex-stop-continue', hasModelTurn: true, recorded: true }, + // Code Mode: the registry in `mode: code` — the wire tool list collapses to + // [run_code], the tools:sdk section rides in the prompt, and the program's + // tool calls land as tool/code-dispatch events. Each mode boots its own + // overlay config, composes a different header by construction, and + // therefore pins its own class. + { name: 'code-mode-turn', hasModelTurn: true, recorded: true, pinsHeader: true, headerClass: 'code', configBase: 'code-mode.cordis.yml' }, + { name: 'both-mode-turn', hasModelTurn: true, recorded: true, pinsHeader: true, headerClass: 'both', configBase: 'both-mode.cordis.yml' }, ] -/** The single header-pinning scenario. Guarded here (and by a meta-test) so the pin cannot silently vanish. */ -const pinningScenario = SCENARIOS.find(s => s.pinsHeader === true) -if (pinningScenario === undefined) throw new Error('acp.snapshot: no scenario pins the request-header content') +/** Each header class's single pinning scenario. Guarded here (and by a meta-test) so a pin cannot silently vanish. */ +const pinningByClass = new Map() +for (const scenario of SCENARIOS) { + if (scenario.pinsHeader !== true) continue + const cls = scenario.headerClass ?? 'default' + const existing = pinningByClass.get(cls) + if (existing) throw new Error(`acp.snapshot: header class "${cls}" pinned by both ${existing.name} and ${scenario.name}`) + pinningByClass.set(cls, scenario) +} +for (const scenario of SCENARIOS) { + const cls = scenario.headerClass ?? 'default' + if (!pinningByClass.has(cls)) throw new Error(`acp.snapshot: no scenario pins the request-header content of class "${cls}" (needed by ${scenario.name})`) +} /** The sibling child-fixture paths for a scenario (`session.1.jsonl` …). */ function childFixturePaths(dir: string, childSessions: number): string[] { @@ -221,6 +256,11 @@ for (const scenario of SCENARIOS) { // replays from its own script. In RECORD they are harvested, not read. ...!RECORDING && childSessions > 0 ? { childFiles: childFixturePaths(dir, childSessions) } : {}, ...existsSync(workspaceDir) ? { workspaceDir } : {}, + // A scenario booting an overlay tree passes its live config; the bin's + // replay swap derives the sibling `*cordis.snapshot.yml` from it. + ...scenario.configBase !== undefined + ? { configPath: join(SNAPSHOTS_DIR, '..', '..', scenario.configBase) } + : {}, }) // Scrub every volatile id the run produced: the ACP server-issued session @@ -281,19 +321,20 @@ for (const scenario of SCENARIOS) { } } - // Header-uniformity guard: the single pin is sound only while every - // session in the suite composes the SAME header and keeps it for the - // whole run. Assert both halves live. (1) Every request/header the run - // produced (parent, spawn child, fork child, initial or resume) must - // equal the pinned fixture's header after each side is normalized - // against its own volatile values. (2) No request/header-delta may - // appear at all — a mid-run header change diverges from the pin by - // construction, and its content would be invisible under the scrub. If - // either fails, either the header changed (update the pin: re-record or - // hand-edit the pinning scenario's fixture) or composition became - // session-dependent by design (give the divergent shape its own - // pinning scenario). + // Header-uniformity guard: a class's single pin is sound only while + // every session in that class composes the SAME header and keeps it for + // the whole run. Assert both halves live. (1) Every request/header the + // run produced (parent, spawn child, fork child, initial or resume) + // must equal the CLASS's pinned fixture's header after each side is + // normalized against its own volatile values. (2) No + // request/header-delta may appear at all — a mid-run header change + // diverges from the pin by construction, and its content would be + // invisible under the scrub. If either fails, either the header changed + // (update the pin: re-record or hand-edit the pinning scenario's + // fixture) or composition became session-dependent by design (give the + // divergent shape its own pinning scenario and class). if (scenario.pinsHeader !== true) { + const pinningScenario = pinningByClass.get(scenario.headerClass ?? 'default')! const pinnedFixture = await readFile(join(SNAPSHOTS_DIR, pinningScenario.name, 'session.jsonl'), 'utf8') const pinned = normalizedHeaders(pinnedFixture, fixtureContext(pinnedFixture)) expect(pinned.length, `the pinning fixture (${pinningScenario.name}) must carry exactly one request/header`) @@ -350,10 +391,21 @@ describe('snapshot fixtures', () => { } }) - it('exactly one scenario pins the request-header content', () => { - // Zero pins would drop the prompt/schema surface from the suite entirely; - // two would split it. The single pin is the design (pinned-header RFC). - expect(SCENARIOS.filter(s => s.pinsHeader === true).map(s => s.name)).toEqual(['text-turn']) + it('exactly one scenario pins the request-header content of each header class', () => { + // Zero pins would drop a class's prompt/schema surface from the suite + // entirely; two would split it. One pin per class is the design + // (pinned-header RFC; the Code Mode classes compose different headers by + // construction, so each carries its own pin). + const pins = new Map() + for (const scenario of SCENARIOS.filter(s => s.pinsHeader === true)) { + const cls = scenario.headerClass ?? 'default' + pins.set(cls, [...pins.get(cls) ?? [], scenario.name]) + } + expect(Object.fromEntries(pins)).toEqual({ + 'default': ['text-turn'], + 'code': ['code-mode-turn'], + 'both': ['both-mode-turn'], + }) }) it('committed fixtures carry request-header content ONLY in the pinning scenario', async () => { diff --git a/examples/acp-agent/tests/snapshot-harness.ts b/examples/acp-agent/tests/snapshot-harness.ts index 8285b870bf..7b04b81e23 100644 --- a/examples/acp-agent/tests/snapshot-harness.ts +++ b/examples/acp-agent/tests/snapshot-harness.ts @@ -124,6 +124,14 @@ interface RunOptions { * start from an empty workspace. */ workspaceDir?: string + /** + * Alternate LIVE config path for the boot (absolute). Defaults to the + * example's `cordis.yml`. A scenario needing a differently-composed tree + * (the Code Mode scenarios) ships an overlay whose basename still ends in + * `cordis.yml`, so the bin's replay swap resolves the sibling + * `*cordis.snapshot.yml` the same way it does for the default. + */ + configPath?: string } /** @@ -163,7 +171,7 @@ export async function runScenario(input: InputScript, opts: RunOptions): Promise child = spawn( process.execPath, - ['--import', tsxLoader, binScript, configPath], + ['--import', tsxLoader, binScript, opts.configPath ?? configPath], { cwd, env, stdio: ['pipe', 'pipe', 'pipe'] }, ) diff --git a/examples/acp-agent/tests/snapshots/both-mode-turn/input.json b/examples/acp-agent/tests/snapshots/both-mode-turn/input.json new file mode 100644 index 0000000000..699e4a2043 --- /dev/null +++ b/examples/acp-agent/tests/snapshots/both-mode-turn/input.json @@ -0,0 +1,7 @@ +{ + "steps": [ + { "op": "initialize" }, + { "op": "newSession" }, + { "op": "prompt", "text": "Call the run_code tool (NOT the native bash tool directly) with a program that runs exactly `echo BOTH_OK` via tools.bash and returns its output. Then reply with that output only and stop." } + ] +} diff --git a/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl b/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl new file mode 100644 index 0000000000..a2b0e9921b --- /dev/null +++ b/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl @@ -0,0 +1,110 @@ +{"type":"session","version":0,"id":"55c51419-0ee3-4c06-8199-cc69eef57a45","createdAt":1783484575071,"cwd":"/tmp/acp-snap-cwd-lORmOD"} +{"type":"turn/start","seq":0,"time":1783484575075,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":1,"time":1783484575076,"data":{"content":[{"type":"text","text":"Call the run_code tool (NOT the native bash tool directly) with a program that runs exactly `echo BOTH_OK` via tools.bash and returns its output. Then reply with that output only and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":2,"time":1783484575078,"data":{"turn":1,"step":1}} +{"type":"request/header","seq":3,"time":1783484575079,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-lORmOD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's text output as a string. Tool arguments must be JSON-serializable.\n- A FAILED tool call rejects with an `Error` carrying the tool's error text — `try/catch` it to handle and continue.\n- Calls execute sequentially, even under `Promise.all`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ndeclare const tools: {\n /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. */\n bash(args: {\n /** The bash command to execute. */\n command: string;\n /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n description: string;\n /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n timeoutMs?: number;\n /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n workdir?: string;\n /** Run in the background and return a task id immediately. No timeout applies. */\n run_in_background?: boolean;\n }): Promise;\n /** Ask the executor to kill a running background bash task by task id. */\n bash_kill(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output. */\n bash_output(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Edit an existing UTF-8 text file by replacing literal text. */\n edit(args: {\n /** Path to edit, resolved by the filesystem backend. */\n file_path: string;\n /** Literal text to replace. Must match exactly. */\n old_string: string;\n /** Literal replacement text. Use an empty string to delete the match. */\n new_string: string;\n /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n replace_all?: boolean;\n }): Promise;\n /** Read a UTF-8 text file and return line-numbered content. */\n read(args: {\n /** Path to read, resolved by the filesystem backend. */\n file_path: string;\n /** 1-based first line to return. Defaults to 1. */\n offset?: number;\n /** Maximum number of lines to return. Defaults to 2000. */\n limit?: number;\n }): Promise;\n /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. */\n subagent(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */\n prompt: string;\n }): Promise;\n /** Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. */\n subagent_fork(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */\n prompt: string;\n }): Promise;\n /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */\n todo_write(args: {\n /** The COMPLETE task list, replacing any previous list. */\n todos: ({\n /** What the task is — a short imperative line. */\n content: string;\n /** pending (not started) | in_progress (now) | completed (done). */\n status: \"pending\" | \"in_progress\" | \"completed\";\n })[];\n }): Promise;\n /** Create or fully replace a UTF-8 text file. */\n write(args: {\n /** Path to write, resolved by the filesystem backend. */\n file_path: string;\n /** Full UTF-8 text content to write. */\n content: string;\n }): Promise;\n}\n```","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."}},"required":["code"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} 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b/examples/acp-agent/tests/snapshots/code-mode-turn/input.json new file mode 100644 index 0000000000..c6d4a1039e --- /dev/null +++ b/examples/acp-agent/tests/snapshots/code-mode-turn/input.json @@ -0,0 +1,7 @@ +{ + "steps": [ + { "op": "initialize" }, + { "op": "newSession" }, + { "op": "prompt", "text": "Using ONE run_code program: call the bash tool twice — exactly `echo CODE_ONE` then exactly `echo CODE_TWO` — and return the two outputs joined with a plus sign. Then reply with that joined string only and stop." } + ] +} diff --git a/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl b/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl new file mode 100644 index 0000000000..dd9c0bed28 --- /dev/null +++ b/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl @@ -0,0 +1,196 @@ +{"type":"session","version":0,"id":"92c80cd8-dddc-4cd6-a05a-9676ef54af5e","createdAt":1783484558135,"cwd":"/tmp/acp-snap-cwd-zej9wx"} +{"type":"turn/start","seq":0,"time":1783484558139,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":1,"time":1783484558139,"data":{"content":[{"type":"text","text":"Using ONE run_code program: call the bash tool twice — exactly `echo CODE_ONE` then exactly `echo CODE_TWO` — and return the two outputs joined with a plus sign. 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+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"CODE"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"_T"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"WO"}}}} +{"jsonrpc":"2.0","id":3,"result":{"stopReason":"end_turn"}} diff --git a/examples/code-agent/README.md b/examples/code-agent/README.md new file mode 100644 index 0000000000..9b6619c0b3 --- /dev/null +++ b/examples/code-agent/README.md @@ -0,0 +1,17 @@ +# code-agent — the Code Mode demo + +The [Code Mode](../../docs/rfc/implemented/feature/2026-06-15-code-mode.md) form of the coding agent: instead of one native tool call per step, the model is offered exactly ONE wire tool — `run_code` — plus a generated TypeScript SDK section declaring every other registered tool (`bash`, `read`, `write`, `edit`, `todo_write`). The model composes tools by writing a program; the program runs in a fresh worker thread (`@deepseek-ai/dsh-code-runtime-worker`), its tool calls bridge back through the ordinary `tools/pre-execute`/`post-execute` pipeline one at a time, each is logged as a `tool/code-dispatch` session event, and ONLY what the program prints or returns re-enters the model's context. + +```sh +pnpm run demo:code # needs DEEPSEEK_API_KEY (repo-root .env works) +``` + +Try a task that spans several tool calls, e.g.: + +> Count the lines of every `*.md` file under docs/ and write the three largest to summary.txt. + +and watch the transcript: one `run_code` call, a program looping over tools, and a result the model curated instead of five round-trips of raw tool output. + +Two lines of `cordis.yml` make the difference from [examples/coding-agent](../coding-agent/README.md): the `code-runtime` entry (the worker-thread backend registering `ctx.codeRuntime`) and `tools: { mode: code }` on the app (flip it to `both` to offer native calls AND `run_code` side by side; remove both lines and it IS the coding agent). + +Tests: `tests/keyless-smoke.e2e.ts` boots the real `cordis.yml` through the Loader with no prompt (the export-shape guard); `tests/code-mode.e2e.ts` is the with-key proof — a real model, a two-tool task, asserting the wire tool list was exactly `[run_code]`, the `tool/code-dispatch` events landed, and the curated answer came back. diff --git a/examples/code-agent/cordis.yml b/examples/code-agent/cordis.yml new file mode 100644 index 0000000000..e4bb4de1e5 --- /dev/null +++ b/examples/code-agent/cordis.yml @@ -0,0 +1,84 @@ +# The code-agent plugin tree: the Code Mode demo. The same spine as +# examples/coding-agent — the DeepSeek adapter, local bash, filesystem and +# todo tool stacks over the stdio chat app — with TWO differences that turn +# it into Cloudflare-style Code Mode: +# +# 1. `code-runtime` loads the worker-thread code-execution backend +# (`ctx.codeRuntime`): one fresh Node worker per run, TypeScript in. +# 2. `stdio-agent` sets `tools: { mode: code }`, so the model is offered +# exactly ONE wire tool — `run_code` — plus a generated TypeScript SDK +# prompt section declaring bash/read/write/edit/todo_write; the model +# composes them by WRITING A PROGRAM, and only what it prints or +# returns re-enters its context. +# +# Requires DEEPSEEK_API_KEY (and optionally DEEPSEEK_BASE_URL) in the +# environment — the dsh-stdio-agent bin loads the gitignored repo-root .env +# first. cordis.yml reads them via the `!!js` tag. + +# Hot-module reload for the dev/demo loop (needs `node --expose-internals`). +- id: hmr + name: '@cordisjs/plugin-hmr' + config: + root: ['.'] + +# The DeepSeek adapter. +- id: llm-deepseek + name: '@deepseek-ai/dsh-llm-deepseek' + config: + apiKey: !!js process.env.DEEPSEEK_API_KEY + baseURL: !!js process.env.DEEPSEEK_BASE_URL + models: + - deepseek-v4-pro + - deepseek-v4-flash + +# Local bash executor for the spine's `bash` tool schemas. +- id: bash + name: '@deepseek-ai/dsh-bash-local' + config: + timeoutMs: 60000 + +# The code-execution backend: `run_code` programs execute here, in one fresh +# worker thread per run with an empty environment, port-bridged tool +# bindings, and busy-time/wall-clock/heap caps (all overridable here). +- id: code-runtime + name: '@deepseek-ai/dsh-code-runtime-worker' + +# The stdio chat app with the registry flipped to Code Mode: the wire tool +# list collapses to [run_code] and the `tools:sdk` prompt section carries the +# generated TypeScript declarations for every other registered tool. +- id: stdio-agent + name: '@deepseek-ai/dsh-stdio-agent' + config: + model: deepseek-v4-flash + tools: + mode: code + # Set RESUME_SESSION_ID to continue a prior persisted session (the ids + # live under ./.sessions); unset starts a fresh session each run. + resumeSessionId: !!js process.env.RESUME_SESSION_ID + persistenceRoot: './.sessions' + welcome: 'code-mode agent ready. Give it a multi-tool task.' + persona: | + You are code-agent, a coding assistant powered by the {{model}} model. + + You work by writing TypeScript programs for run_code: batch related + tool work into one program, loop and branch where it helps, and print + or return ONLY the findings that matter. + +# The model-facing todo_write tool: whole-list task tracking written to the +# session log (todo/write), rendered as a stdio checklist. +- id: tool-todo + name: '@deepseek-ai/dsh-tool-todo' + +# Filesystem capability stack: local provider, read-before-write/edit policy +# gate, then the model-facing read/write/edit tools — all reachable from a +# run_code program as `tools.read(...)` / `tools.write(...)` / `tools.edit(...)`. +- id: fs-local + name: '@deepseek-ai/dsh-fs-local' + config: + cwd: !!js process.cwd() + +- id: fs-policy + name: '@deepseek-ai/dsh-fs-policy' + +- id: tool-fs + name: '@deepseek-ai/dsh-tool-fs' diff --git a/examples/code-agent/package.json b/examples/code-agent/package.json new file mode 100644 index 0000000000..0aa0e52c52 --- /dev/null +++ b/examples/code-agent/package.json @@ -0,0 +1,7 @@ +{ + "name": "code-agent-example", + "private": true, + "version": "0.0.1", + "type": "module", + "description": "Runnable demo: Code Mode — the model writes TypeScript against the tool registry" +} diff --git a/examples/code-agent/tests/code-mode.e2e.ts b/examples/code-agent/tests/code-mode.e2e.ts new file mode 100644 index 0000000000..6b0771380d --- /dev/null +++ b/examples/code-agent/tests/code-mode.e2e.ts @@ -0,0 +1,115 @@ +import { mkdtemp, readFile, rm } from 'node:fs/promises' +import { tmpdir } from 'node:os' +import { join } from 'node:path' +import { afterEach, describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import LlmService from '@deepseek-ai/dsh-llm' +import SessionStore from '@deepseek-ai/dsh-session' +import type { SessionEvent } from '@deepseek-ai/dsh-session' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry, { RUN_CODE_NAME } from '@deepseek-ai/dsh-tools' +import AgentRegistry, { AgentId } from '@deepseek-ai/dsh-agent' +import AgentLoop, { type ReactLoopAgent } from '@deepseek-ai/dsh-agent-loop' +import { LocalBashExecutor } from '@deepseek-ai/dsh-bash-local' +import * as ToolBash from '@deepseek-ai/dsh-tool-bash' +import * as LlmDeepSeek from '@deepseek-ai/dsh-llm-deepseek' +import { WorkerCodeRuntime } from '@deepseek-ai/dsh-code-runtime-worker' + +/** + * The Code Mode with-key proof (the RFC's e2e tier): a REAL model under + * `mode: 'code'`, a task that requires composing two tool calls, verified + * against the WORLD — the persisted request header carried exactly + * `[run_code]` as the wire tool list, each sub-call landed as a + * `tool/code-dispatch` event, the file the program wrote exists on disk, and + * the final answer is the program's curated output. Key-gated (see + * vitest.e2e.config.ts); the keyless Loader-path smoke lives in + * `keyless-smoke.e2e.ts`. + */ + +const PERSONA = 'You are code-agent. You work by writing TypeScript programs for run_code: ' + + 'batch related tool work into one program and print or return ONLY the findings that matter.' + +let ctx: Context | undefined +let workdir: string | undefined + +afterEach(async () => { + // Always dispose, even on failure/retry/timeout: agent-loop teardown stops + // the loop, the executor kills stray processes, and the code runtime's + // dispose awaits worker exits. + await ctx?.fiber.dispose() + ctx = undefined + if (workdir !== undefined) await rm(workdir, { recursive: true, force: true }) + workdir = undefined +}) + +async function codeModeHarness(cwd: string): Promise { + const harness = new Context() + await harness.plugin(LlmService) + await harness.plugin(SessionStore) + await harness.plugin(SystemPrompt, { persona: PERSONA }) + await harness.plugin(ToolRegistry, { mode: 'code' }) + await harness.plugin(AgentRegistry) + await harness.plugin(AgentLoop, { agents: [] }) + await harness.plugin(LlmDeepSeek, { models: ['deepseek-v4-flash'] }) + await harness.plugin(LocalBashExecutor, { cwd, timeoutMs: 30_000 }) + await harness.plugin(ToolBash) + await harness.plugin(WorkerCodeRuntime, {}) + return harness +} + +function waitForIdle(harness: Context, agent: ReactLoopAgent): Promise { + return new Promise((resolve) => { + const dispose = harness.on('agent/status', (subject, status) => { + if (subject === agent && status === 'idle') { + dispose() + resolve() + } + }) + }) +} + +describe.skipIf(!process.env.DEEPSEEK_API_KEY)('Code Mode: real model writes a program over real tools', () => { + it('collapses the wire tool list to [run_code], bridges sub-calls, and returns curated output', async () => { + workdir = await mkdtemp(join(tmpdir(), 'dsh-code-mode-e2e-')) + ctx = await codeModeHarness(workdir) + const agent = ctx.agentLoop.create(AgentId('e2e-code-mode'), { model: 'deepseek-v4-flash' }) + + agent.send([{ + type: 'text', + text: 'Using one run_code program: run `echo alpha-7` with the bash tool, run `echo beta-9` with the bash tool, ' + + 'then write both outputs joined by a plus sign into combined.txt (bash heredoc or redirect), ' + + 'and return only the joined string.', + }]) + await waitForIdle(ctx, agent) + const events: SessionEvent[] = [...agent.session.events] + + // The wire contract: every request this session made offered EXACTLY ONE + // tool — run_code (the logged header snapshots the assembled list). + const headers = events.filter(event => event.type === 'request/header') + expect(headers.length).toBeGreaterThan(0) + for (const header of headers) { + expect(header.data.header.tools?.map(tool => tool.name)).toEqual([RUN_CODE_NAME]) + } + // The model actually went through run_code… + const calls = events.filter(event => event.type === 'tool/call') + expect(calls.length).toBeGreaterThan(0) + expect(calls.every(event => event.data.name === RUN_CODE_NAME)).toBe(true) + // …and the program's tool calls landed as dispatch events under it. + const dispatches = events.filter(event => event.type === 'tool/code-dispatch') + expect(dispatches.length).toBeGreaterThanOrEqual(2) + expect(dispatches.every(event => event.data.name === 'bash')).toBe(true) + const parents = new Set(calls.map(event => event.data.callId)) + expect(dispatches.every(event => parents.has(event.data.parentCallId))).toBe(true) + + // World verification: the file the program wrote, and the curated answer. + const combined = await readFile(join(workdir, 'combined.txt'), 'utf8') + expect(combined).toContain('alpha-7') + expect(combined).toContain('beta-9') + const finalMessage = events.findLast(event => event.type === 'assistant/message') + const finalText = finalMessage !== undefined + ? finalMessage.data.content.filter(block => block.type === 'text').map(block => block.text).join('') + : '' + expect(finalText).toContain('alpha-7') + expect(finalText).toContain('beta-9') + }, 180_000) +}) diff --git a/examples/code-agent/tests/keyless-smoke.e2e.ts b/examples/code-agent/tests/keyless-smoke.e2e.ts new file mode 100644 index 0000000000..4b7a150e99 --- /dev/null +++ b/examples/code-agent/tests/keyless-smoke.e2e.ts @@ -0,0 +1,90 @@ +import { spawn, type ChildProcessWithoutNullStreams } from 'node:child_process' +import { mkdtemp, rm } from 'node:fs/promises' +import { tmpdir } from 'node:os' +import { join } from 'node:path' +import { fileURLToPath } from 'node:url' +import { afterEach, describe, expect, it } from 'vitest' + +/** + * Keyless Loader-path smoke for examples/code-agent: boot the REAL example + * through the `@deepseek-ai/dsh-stdio-agent` bin against its `cordis.yml` + * (the cordis Loader, `unwrapExports`, the full plugin tree incl. the + * worker-thread code runtime and the registry in `mode: code`), then close + * stdin with no prompt and assert the ready banner + a clean exit. + * + * No prompt is ever sent, so the model is NEVER called and no `run_code` + * turn happens — a dummy key lets `llm-deepseek`'s key-PRESENT check boot + * the tree. This is the export-shape guard (postmortem 0001) for the Code + * Mode composition; the with-key proof lives in `code-mode.e2e.ts`. + */ + +const binScript = fileURLToPath(new URL('../../../packages/ui/stdio-agent/src/bin.ts', import.meta.url)) +const configPath = fileURLToPath(new URL('../cordis.yml', import.meta.url)) +const tsxLoader = fileURLToPath(import.meta.resolve('tsx')) +// Dev/test run UNBUILT: resolve `@deepseek-ai/dsh-*` through the root tsconfig +// `paths` map; tsx searches UP from cwd, and we spawn from a temp dir outside +// the repo, so point it at the repo tsconfig. +const repoTsconfig = fileURLToPath(new URL('../../../tsconfig.json', import.meta.url)) + +let child: ChildProcessWithoutNullStreams | undefined +let workdir: string | undefined + +afterEach(async () => { + if (child !== undefined && child.exitCode === null) child.kill('SIGKILL') + child = undefined + if (workdir !== undefined) await rm(workdir, { recursive: true, force: true }) + workdir = undefined +}) + +async function bootAndEof(): Promise<{ stdout: string; code: number }> { + workdir = await mkdtemp(join(tmpdir(), 'code-agent-smoke-')) + const cwd = workdir + return new Promise((resolve, reject) => { + const proc = spawn( + process.execPath, + // --expose-internals: cordis.yml loads the HMR plugin (mirrors demo:code). + ['--expose-internals', '--import', tsxLoader, binScript, configPath], + { + cwd, + env: { + ...process.env, + TSX_TSCONFIG_PATH: repoTsconfig, + // A dummy key so llm-deepseek's apply() (key-PRESENT check only) boots. + // No prompt is sent, so the adapter never streams — no network call. + DEEPSEEK_API_KEY: 'keyless-smoke-no-call', + }, + stdio: ['pipe', 'pipe', 'pipe'], + }, + ) + child = proc + let stdout = '' + let stderr = '' + proc.stdout.setEncoding('utf8') + proc.stdout.on('data', (chunk: string) => { stdout += chunk }) + proc.stderr.setEncoding('utf8') + proc.stderr.on('data', (chunk: string) => { stderr += chunk }) + + const timer = setTimeout(() => { + proc.kill('SIGKILL') + reject(new Error(`code-agent did not exit within 10s. stdout:\n${stdout}\nstderr:\n${stderr}`)) + }, 10_000) + + proc.on('exit', (code) => { + clearTimeout(timer) + if (code === 0) resolve({ stdout, code }) + else reject(new Error(`code-agent exited ${code}. stderr:\n${stderr}`)) + }) + proc.on('error', (err) => { clearTimeout(timer); reject(err) }) + + // No prompt — just EOF, so the stdio UI exits without ever running a turn. + proc.stdin.end() + }) +} + +describe('code-agent keyless smoke (real cordis.yml via the Loader)', () => { + it('boots the Code Mode plugin tree, prints its banner, and exits cleanly on EOF', async () => { + const { stdout, code } = await bootAndEof() + expect(code).toBe(0) + expect(stdout).toContain('code-mode agent ready.') + }, 15_000) +}) diff --git a/package.json b/package.json index bba471ea5f..4fce3dad57 100644 --- a/package.json +++ b/package.json @@ -63,6 +63,7 @@ "hygiene": "pnpm run knip && pnpm run publint && pnpm run constraints && pnpm run verify-node-next-types", "demo:echo": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/echo-agent/cordis.yml", "demo:repl": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/coding-agent/cordis.yml", + "demo:code": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/code-agent/cordis.yml", "demo:acp": "node --import tsx packages/ui/acp-agent/src/bin.ts examples/acp-agent/cordis.yml", "postinstall": "node scripts/install-lefthook.mjs" }, diff --git a/packages/code-runtime/README.md b/packages/code-runtime/README.md index b98baa43e6..a4ab8956be 100644 --- a/packages/code-runtime/README.md +++ b/packages/code-runtime/README.md @@ -1,6 +1,6 @@ # code-runtime/ — code-execution capability family -The code-execution capability seam (see [capability seams](../../docs/rfc/implemented/architecture/2026-06-13-capability-seams.md)): an abstract runtime interface for executing one model-written program against host-provided async bindings, capturing what it printed and returned. The consumer is the tool registry's Code Mode, specified alongside the seam in the [Code Mode RFC](../../docs/rfc/proposed/feature/2026-06-15-code-mode.md). **Product** packages. +The code-execution capability seam (see [capability seams](../../docs/rfc/implemented/architecture/2026-06-13-capability-seams.md)): an abstract runtime interface for executing one model-written program against host-provided async bindings, capturing what it printed and returned. The consumer is the tool registry's [Code Mode](../core/tools/README.md) (`tools: { mode: code }` — the `run_code` tool and the generated TypeScript SDK); design in the [Code Mode RFC](../../docs/rfc/implemented/feature/2026-06-15-code-mode.md). **Product** packages. | Package | Role | ctx key | |---|---|---| diff --git a/packages/code-runtime/code-runtime-worker/README.md b/packages/code-runtime/code-runtime-worker/README.md index b8f440397a..f691904e88 100644 --- a/packages/code-runtime/code-runtime-worker/README.md +++ b/packages/code-runtime/code-runtime-worker/README.md @@ -1,6 +1,6 @@ # @deepseek-ai/dsh-code-runtime-worker -Worker-thread implementation of the [`@deepseek-ai/dsh-code-runtime`](../code-runtime/README.md) seam: `WorkerCodeRuntime` runs each program in ONE fresh Node `worker_threads.Worker` — TypeScript in, type-stripped host-side, bindings bridged over the message port, `{ value, logs, error? }` out. **Containment, not a security boundary**: trust posture is bash-equivalent by design (the [Code Mode RFC](../../../docs/rfc/proposed/feature/2026-06-15-code-mode.md) § Trust posture), with containment bash does not have — separate isolate, empty environment, heap cap, hard termination. +Worker-thread implementation of the [`@deepseek-ai/dsh-code-runtime`](../code-runtime/README.md) seam: `WorkerCodeRuntime` runs each program in ONE fresh Node `worker_threads.Worker` — TypeScript in, type-stripped host-side, bindings bridged over the message port, `{ value, logs, error? }` out. **Containment, not a security boundary**: trust posture is bash-equivalent by design (the [Code Mode RFC](../../../docs/rfc/implemented/feature/2026-06-15-code-mode.md) § Trust posture), with containment bash does not have — separate isolate, empty environment, heap cap, hard termination. ## Config diff --git a/packages/code-runtime/code-runtime/README.md b/packages/code-runtime/code-runtime/README.md index 2d7b12add1..20c9274b9c 100644 --- a/packages/code-runtime/code-runtime/README.md +++ b/packages/code-runtime/code-runtime/README.md @@ -2,7 +2,7 @@ The **code-execution seam**: an abstract `CodeRuntime` service (`ctx.codeRuntime`) defining WHAT a code runtime does — run one model-written program against a set of host-provided async bindings and report `{ value, logs, error? }` — without saying HOW. -This package is the interface third of the capability (the bash trio is the template — see [capability seams](../../../docs/rfc/implemented/architecture/2026-06-13-capability-seams.md)): implementations subclass `CodeRuntime` and register the service; the consumer is the tool registry's Code Mode, which generates the model-facing SDK and bridges tool dispatch — both specified in the [Code Mode RFC](../../../docs/rfc/proposed/feature/2026-06-15-code-mode.md), whose first implementation is a Node worker-thread backend. The runtime knows nothing about tools or sessions: it is handed named async functions and a program string, and everything tool-shaped stays with the consumer. +This package is the interface third of the capability (the bash trio is the template — see [capability seams](../../../docs/rfc/implemented/architecture/2026-06-13-capability-seams.md)): implementations subclass `CodeRuntime` and register the service; the consumer is the tool registry's Code Mode, which generates the model-facing SDK and bridges tool dispatch — both specified in the [Code Mode RFC](../../../docs/rfc/implemented/feature/2026-06-15-code-mode.md), whose first implementation is a Node worker-thread backend. The runtime knows nothing about tools or sessions: it is handed named async functions and a program string, and everything tool-shaped stays with the consumer. ## Service API (`ctx.codeRuntime`) diff --git a/packages/code-runtime/code-runtime/src/index.ts b/packages/code-runtime/code-runtime/src/index.ts index af967da61d..5595469afe 100644 --- a/packages/code-runtime/code-runtime/src/index.ts +++ b/packages/code-runtime/code-runtime/src/index.ts @@ -7,7 +7,7 @@ * substrate (worker thread, separate process, container) and by source * language, both declared as readonly descriptors. The design and its * consumer (the tool registry's Code Mode) are specified in the Code Mode RFC - * (docs/rfc/proposed/feature/2026-06-15-code-mode.md). + * (docs/rfc/implemented/feature/2026-06-15-code-mode.md). * * The split mirrors the bash seam (`BashExecutor`): the runtime knows nothing * about tools or sessions — it is handed named async functions and a program, diff --git a/packages/core/agent-core/src/index.ts b/packages/core/agent-core/src/index.ts index 785c8d1ff2..a3221bdf8f 100644 --- a/packages/core/agent-core/src/index.ts +++ b/packages/core/agent-core/src/index.ts @@ -48,7 +48,7 @@ import z from 'schemastery' import LlmService from '@deepseek-ai/dsh-llm' import SessionStore from '@deepseek-ai/dsh-session' import SystemPrompt, { type Config as SystemPromptConfig } from '@deepseek-ai/dsh-system-prompt' -import ToolRegistry from '@deepseek-ai/dsh-tools' +import ToolRegistry, { type Config as ToolsConfig } from '@deepseek-ai/dsh-tools' import AgentRegistry from '@deepseek-ai/dsh-agent' import * as invariants from '@deepseek-ai/dsh-invariants' import * as toolBash from '@deepseek-ai/dsh-tool-bash' @@ -61,10 +61,12 @@ export const name = 'agent-core' * `agents` to the agent loop (an app that pre-creates no agents, like the ACP * bridge, simply omits it), `persona` and `toolOrder` to the system-prompt * plugin (the deployment's persona section and the explicit model-facing tool - * order). Every field is optional INPUT here because each owner's schema - * supplies the default (`[]` / `''` / absent — lexicographic); the schema is - * the INTERSECTION of the owners' own schemas, so validation and defaulting - * can never drift from them. + * order), the `tools` object to the tool registry (its presentation `mode`). + * Every field is optional INPUT here because each owner's schema + * supplies the default (`[]` / `''` / absent — lexicographic / `native`); the + * schema is the INTERSECTION of the owners' own schemas (the registry's + * nested under its `tools` key), so validation and defaulting can never + * drift from them. */ export interface Config { /** The agent-loop `agents` list (see dsh-agent-loop's `Config`). */ @@ -73,10 +75,12 @@ export interface Config { persona?: SystemPromptConfig['persona'] /** The explicit model-facing tool order (see dsh-system-prompt's `Config`). */ toolOrder?: SystemPromptConfig['toolOrder'] + /** The tool registry's config — its presentation `mode` (see dsh-tools' `Config`). */ + tools?: ToolsConfig } -/** Intersect the owners' schemas so validation + defaulting stay identical. */ -export const Config = z.intersect([AgentLoop.Config, SystemPrompt.Config]) as unknown as z +/** Intersect the owners' schemas so validation + defaulting stay identical (the registry's nested under `tools`). */ +export const Config = z.intersect([AgentLoop.Config, SystemPrompt.Config, z.object({ tools: ToolRegistry.Config })]) as unknown as z /** * Load the spine. Each `ctx.plugin(...)` mounts one child of the bundle fiber; @@ -101,7 +105,7 @@ export function apply(ctx: Context, config: Config): void { persona: config.persona ?? '', ...config.toolOrder !== undefined ? { toolOrder: config.toolOrder } : {}, }) - ctx.plugin(ToolRegistry) + ctx.plugin(ToolRegistry, config.tools ?? {}) ctx.plugin(AgentRegistry) ctx.plugin(invariants) ctx.plugin(toolBash) diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index aea87ad76c..7525fb8fd6 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -1,9 +1,18 @@ # dsh-tools -Tool registry and execution pipeline. Tool plugins register their schemas and executors; the agent loop executes each call through `tools/pre-execute` (the allow/deny gate) → core dispatch → `tools/post-execute` (inspect/replace the result, attach context). +Tool registry and execution pipeline. Tool plugins register their schemas and executors; the agent loop executes each call through `tools/pre-execute` (the allow/deny gate) → core dispatch → `tools/post-execute` (inspect/replace the result, attach context). The registry also owns HOW its tools are presented to the model — its `mode` config selects native function calling, [Code Mode](#code-mode), or both. ## Service: `ToolRegistry` (ctx key: `tools`) +### Config + +```yaml +tools: + mode: native # native (default) | code | both +``` + +`native` contributes every registered tool as a wire function definition — the default, byte-for-byte the pre-config behavior. `code` contributes exactly ONE wire tool, `run_code`, plus the generated `tools:sdk` prompt section (see [Code Mode](#code-mode)). `both` contributes every native definition AND `run_code` + the SDK section. Non-native modes require a loaded `ctx.codeRuntime` with `language: 'typescript'`; a missing or mismatched runtime rejects every prompt assembly with an actionable error, and a `systemPrompt.toolOrder` naming tools the mode no longer contributes rejects the assembly the same way. + ### Public API - `ctx.tools.register(definition: ToolDefinition): () => void` Register a tool. Disposed with the calling fiber. @@ -116,6 +125,16 @@ const bash = defineTool({ }) ``` +### Code Mode + +Under `mode: code` (or `both`) the registry turns the tool surface into a programming API, per the [Code Mode RFC](../../../docs/rfc/implemented/feature/2026-06-15-code-mode.md): the model writes a TypeScript program (the body of an async function) and passes it to the ONE wire tool `run_code`; the program runs in `ctx.codeRuntime` (the [code-execution seam](../../code-runtime/README.md) — the shipped backend is a worker thread) with one async binding per registered tool (`await tools.bash({...})`), and ONLY what it prints or returns re-enters the model's context. + +- **The SDK section** (`tools:sdk`, order 150): a lazy prompt section regenerating, at each assembly, a `declare const tools: {...}` TypeScript declaration of every registered tool except `run_code` (exotic names via quoted keys), plus fixed usage instructions. Deterministic — lexicographic tool order, byte-identical text for an unchanged tool set (prefix-cache-friendly). The codegen (`jsonSchemaToTs`, exported) is TOTAL: constructs outside the `defineTool` subset degrade to `unknown`, never throw. +- **The dispatch bridge** (`run_code`'s execute): every binding call is JSON-normalized BEFORE dispatch (a value that does not survive — `BigInt`, circulars — rejects that one call, so the dispatched form and the logged form are the same JSON value by construction), serialized through a per-run queue (even `Promise.all` executes the underlying `ctx.tools.execute()` calls one at a time in submission order — the tool contract carries no concurrency-safety metadata yet), gated by `tools/pre-execute`/`tools/post-execute` like any native call (a deny reaches the program as a binding rejection), and logged as one `tool/code-dispatch` session event (log-only: `deriveMessages()` never surfaces it) with the deterministic sub-id `:code:`. A failed sub-call REJECTS the program-side promise with the tool's error text — real code error handling, no bespoke envelope. A sub-call's `additionalContext` is deliberately DROPPED (no safe outlet mid-run without breaking tool-call/result adjacency; deferred until a real hook needs it through Code Mode). +- **Settlement discipline**: the bridge owns a run-scoped abort that follows the outer signal in and fires when the run settles for any reason, so a budget expiry aborts an in-flight sub-tool instead of orphaning it; the bridge then drains its queue BEFORE returning, so every `tool/code-dispatch` lands inside the open turn. A failed run throws `CodeRunFailedError` (`code: 'CODE_RUN_FAILED'`, message = the failure kind + captured logs), which the pipeline converts to a structured `isError` the model self-corrects from. + +The wire collapse is the registry's own contribution (`systemPrompt.tools()` is mode-aware), so the logged `request/header` records it for free — under `code`, the assembled tool list is exactly `[run_code]`, pinned by tests and the snapshot goldens. Try it: `pnpm run demo:code` ([examples/code-agent](../../../examples/code-agent/README.md)). + ### What is NOT here (TODO) - **Tool shapes review** — when real tools land (e.g. a concurrency-safety hint for parallel execution); phase 1 executes tool calls sequentially. diff --git a/packages/core/tools/package.json b/packages/core/tools/package.json index a6d3bbe0ca..f6425538b1 100644 --- a/packages/core/tools/package.json +++ b/packages/core/tools/package.json @@ -23,13 +23,20 @@ "license": "BSD-3-Clause", "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", + "@deepseek-ai/dsh-code-runtime": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-session": "^0.0.1", "@deepseek-ai/dsh-system-prompt": "^0.0.1", "cordis": "^4.0.0-rc.6" }, + "dependencies": { + "schemastery": "^3.18.0" + }, "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", + "@deepseek-ai/dsh-code-runtime": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-session": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "cordis": "^4.0.0-rc.6" } diff --git a/packages/core/tools/src/code-mode.ts b/packages/core/tools/src/code-mode.ts new file mode 100644 index 0000000000..be3b7c91af --- /dev/null +++ b/packages/core/tools/src/code-mode.ts @@ -0,0 +1,280 @@ +/** + * Code Mode: the `run_code` tool and its dispatch bridge. The model writes a + * TypeScript program; the bridge hands it to `ctx.codeRuntime` with one + * async binding per registered tool, serializes every binding call through a + * per-run queue onto `ToolRegistry.execute()` (so `tools/pre-execute` / + * `tools/post-execute` gate sub-calls exactly like native ones), logs each + * sub-dispatch as a `tool/code-dispatch` session event, and returns only the + * program's curated output. The registry itself decides WHEN this tool + * exists (its `mode` config); this module owns only the tool and the bridge. + * + * @module @deepseek-ai/dsh-tools/src/code-mode + */ + +import { inspect } from 'node:util' +import { CallId, HarnessError } from '@deepseek-ai/dsh-llm' +import type { ContentBlock } from '@deepseek-ai/dsh-llm' +import type { CodeBindingFunction, CodeRunResult, CodeRuntime } from '@deepseek-ai/dsh-code-runtime' +import type {} from '@deepseek-ai/dsh-session' +import { defineTool } from './schema.ts' +import type { ToolDefinition, ToolRegistry } from './index.ts' + +declare module '@deepseek-ai/dsh-session' { + interface SessionEventMap { + /** + * One bridged sub-dispatch from a `run_code` program: the parent + * `run_code` call id, the deterministic sub-call id + * (`:code:`), the tool `name` with its JSON-normalized + * `arguments` — the exact value dispatched, normalized BEFORE dispatch, + * so this append can never fail on payload shape — whether the sub-call + * errored, and a bounded `resultSummary` of its model-facing text. + * Log-only: `deriveMessages()` ignores it, so sub-calls never re-enter + * model context; persistence and UIs get every call. Appended inside the + * parent `run_code`'s execution (the bridge drains its queue before + * returning), so the turn-enclosure invariant holds by construction. + */ + 'tool/code-dispatch': { parentCallId: CallId; subCallId: CallId; name: string; arguments: unknown; isError: boolean; resultSummary: string } + } +} + +/** The model-facing name of the Code Mode tool. */ +export const RUN_CODE_NAME = 'run_code' + +/** The `tools:sdk` section order: inside the 100–199 tool-guidance band, after per-tool guidance sections. */ +export const SDK_SECTION_ORDER = 150 + +/** + * Thrown by `run_code` when the program run itself failed — a program + * exception, a budget expiry, an abort, or substrate death. Extends + * {@link HarnessError} (`code: 'CODE_RUN_FAILED'`); the registry's execution + * pipeline converts it into a structured `isError` result whose text carries + * the failure kind plus the captured logs, so the model can self-correct. + */ +export class CodeRunFailedError extends HarnessError { + constructor(message: string) { + super(message, 'CODE_RUN_FAILED') + this.name = 'CodeRunFailedError' + } +} + +/** + * Cap for a `tool/code-dispatch` event's `resultSummary`. A log-ergonomics + * constant, not config: the full result already flows to the program; the + * summary exists so log readers see what a sub-call returned at a glance. + */ +const SUMMARY_MAX_CHARS = 200 + +/** Bounded inspect for rendering a program's completion value into the model-facing text. */ +const INSPECT_OPTIONS = { depth: 4, maxArrayLength: 100, maxStringLength: 10_000 } as const + +/** Join a result's text blocks; a non-text block becomes a placeholder (an MVP limitation, stated in the SDK instructions). */ +function textOf(content: ContentBlock[]): string { + return content + .map((block) => { + switch (block.type) { + case 'text': return block.text + // ContentBlockMap is merge-extensible — future block kinds land here + // deliberately (no assertNever on merge-extensible unions). + default: return `[${block.type} content]` + } + }) + .join('\n') +} + +/** Bound a sub-call's model-facing text for the log event's `resultSummary`. */ +function summarize(text: string): string { + return text.length > SUMMARY_MAX_CHARS ? `${text.slice(0, SUMMARY_MAX_CHARS)}…` : text +} + +/** + * JSON-normalize one binding call's argument: a `JSON.parse(JSON.stringify(…))` + * round-trip, so the value dispatched to the tool and the value logged on the + * `tool/code-dispatch` event are the same JSON value by construction (the + * runtime's structured-clone boundary is wider than JSON; the session log + * accepts only JSON). A value that does not survive (`BigInt`, a circular + * structure, a bare function) rejects that one call with a model-correctable + * error. `undefined` passes through — the tool's own schema validation + * rejects it with its usual "must be an object" feedback. + */ +function jsonNormalizeArgs(value: unknown): unknown { + if (value === undefined) return undefined + let text: string | undefined + try { + text = JSON.stringify(value) + } catch (error: unknown) { + throw new Error(`tool arguments must be JSON-serializable: ${error instanceof Error ? error.message : String(error)}`) + } + // JSON.stringify's lib type claims `string`, but a bare function or symbol + // root really yields `undefined` at runtime — the guard is live. + // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition + if (text === undefined) throw new Error('tool arguments must be JSON-serializable (got a value JSON cannot represent)') + return JSON.parse(text) as unknown +} + +/** Render the program's completion value for the model-facing result text (`''` when the program returned nothing). */ +function renderValue(value: unknown): string { + if (value === undefined) return '' + return typeof value === 'string' ? value : inspect(value, INSPECT_OPTIONS) +} + +/** The run_code result's `meta` payload (JSON-serializable; `presentResult` narrows it back). */ +interface RunCodeMeta { + logs: CodeRunResult['logs'] + dispatches: number +} + +/** Soft-narrow a result `meta` back to {@link RunCodeMeta} (replay may carry older shapes; presentation must not throw). */ +function asRunCodeMeta(meta: unknown): RunCodeMeta | undefined { + if (typeof meta !== 'object' || meta === null) return undefined + const m = meta as Record + if (!Array.isArray(m.logs) || typeof m.dispatches !== 'number') return undefined + return m as unknown as RunCodeMeta +} + +/** + * Build the `run_code` {@link ToolDefinition}: one required `code` parameter, + * executed through the dispatch bridge described in the module doc. The + * registry registers it under non-native modes. + * @param registry - the owning registry (sub-calls go through its `execute`, + * bindings cover its registered tools). + * @param requireRuntime - resolves `ctx.codeRuntime` or throws the loud + * misconfiguration error (shared with the registry's assembly-time checks). + * @returns the registry-ready definition. + */ +export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () => CodeRuntime): ToolDefinition { + return defineTool({ + name: RUN_CODE_NAME, + description: + 'Execute a TypeScript program against the available tools. Write the BODY of an ' + + 'async function (erasable syntax only; top-level `await` and `return` work) and ' + + 'call tools as `await tools.name(args)` per the declarations in the system prompt. ' + + 'Only what you print or return comes back — curate it.', + parameters: { + code: { type: 'string', required: true, description: 'The program: the body of an async TypeScript function.' }, + }, + async execute(args, exec) { + const runtime = requireRuntime() + + // The run-scoped abort: follows the outer signal in, and fires when the + // run settles for ANY reason, so an in-flight sub-dispatch is aborted + // (its executor kills on this signal) instead of orphaned, and + // queued-unstarted dispatches are abandoned. + const runController = new AbortController() + const onOuterAbort = (): void => { runController.abort(exec.signal?.reason) } + if (exec.signal?.aborted) onOuterAbort() + exec.signal?.addEventListener('abort', onOuterAbort, { once: true }) + + let dispatches = 0 + // The per-run serialization queue: every binding call chains onto the + // tail, so even `Promise.all` executes the underlying tool calls one at + // a time in submission order (the tool contract carries no + // concurrency-safety metadata yet). The fold keeps the tail non-rejecting + // so one failed dispatch never poisons the chain. + let queue: Promise = Promise.resolve() + const enqueue = (task: () => Promise): Promise => { + const turn = queue.then(() => { + if (runController.signal.aborted) { + throw new Error(`run_code run is over (${String(runController.signal.reason)}); tool call abandoned`) + } + return task() + }) + queue = turn.then(() => undefined, () => undefined) + return turn + } + + // Read through a call, not a bare property: the abort state genuinely + // changes across awaits, and a direct `.aborted` re-check after one + // would be narrowed away by control flow analysis. + const runOver = (): boolean => runController.signal.aborted + + const binding = (name: string): CodeBindingFunction => async (rawArgs: unknown): Promise => { + if (runOver()) { + throw new Error(`run_code run is over (${String(runController.signal.reason)}); ${name} not dispatched`) + } + const normalized = jsonNormalizeArgs(rawArgs) + const outcome = await enqueue(async () => { + const n = ++dispatches + const subCallId = CallId(`${String(exec.callId)}:code:${n}`) + const result = await registry.execute({ + callId: subCallId, + name, + arguments: normalized, + ...exec.agent ? { agent: exec.agent } : {}, + signal: runController.signal, + }) + const text = textOf(result.content) + // Sub-call `additionalContext` is deliberately DROPPED here: the + // loop's buffering (append after the step's tool/results) has no + // safe analogue from inside a running run_code — injecting now + // would break tool-call/result adjacency. Deferred until a real + // hook needs it through Code Mode. + exec.agent?.session.append('tool/code-dispatch', { + parentCallId: exec.callId, + subCallId, + name, + arguments: normalized, + isError: result.isError, + resultSummary: summarize(text), + }) + return { text, isError: result.isError } + }) + // A budget expiry or outer cancel that lands while this call was in + // flight already aborted the dispatch; stop the program now rather + // than hand it a result from a run that is over. + if (runOver()) { + throw new Error(`run_code run is over (${String(runController.signal.reason)}); ${name} result discarded`) + } + // A failed tool call REJECTS — real code signals failure by throwing, + // so try/catch and Promise.all short-circuiting behave as models + // expect (the error text is the tool's model-facing result text). + if (outcome.isError) throw new Error(outcome.text) + return outcome.text + } + + const functions: Record = {} + for (const schema of registry.schemas()) { + if (schema.name === RUN_CODE_NAME) continue + functions[schema.name] = binding(schema.name) + } + + try { + const result = await runtime.run({ + program: args.code, + bindings: [{ global: 'tools', functions }], + signal: runController.signal, + }) + // Quiescence before returning: fire the run-scoped abort (cancelling + // an in-flight sub-dispatch, abandoning queued ones), then await the + // queue's drain — an aborted sub-call still settles and logs its + // event INSIDE the open turn; nothing can append after we return. + runController.abort('run_code settled') + await queue + + if (result.error) { + const logsText = result.logs.length > 0 ? `\nCaptured output:\n${result.logs.map(entry => entry.text).join('\n')}` : '' + throw new CodeRunFailedError(`code run failed (${result.error.kind}): ${result.error.message}${logsText}`) + } + const rendered = renderValue(result.value) + const parts = [result.logs.map(entry => entry.text).join('\n'), rendered].filter(part => part.length > 0) + const meta: RunCodeMeta = { logs: result.logs, dispatches } + return { + content: [{ type: 'text', text: parts.length > 0 ? parts.join('\n') : '(run_code completed with no output)' }], + meta, + } + } finally { + exec.signal?.removeEventListener('abort', onOuterAbort) + } + }, + presentCall: args => ({ card: 'generic', title: 'Run code', kind: 'execute', rawInput: args.code }), + presentResult: (_args, result) => { + const meta = asRunCodeMeta(result.meta) + if (!meta) return undefined + const output = meta.logs.map(entry => entry.text).join('\n') + return { + card: 'generic', + title: `Run code (${meta.dispatches} tool call${meta.dispatches === 1 ? '' : 's'})`, + ...output.length > 0 ? { content: [{ type: 'text', text: output }] } : {}, + } + }, + }) +} diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index 39dafd6f1a..e55113316d 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -5,15 +5,26 @@ * `tools/post-execute` (inspect/replace the result, attach context) for * sandbox, permission, and hook plugins to gate or transform a call. * + * The registry also owns HOW its tools are presented to the model — its + * `mode` config: `'native'` (every tool as a wire function definition, + * today's behavior and the default), `'code'` (the wire carries exactly one + * tool, `run_code`, plus a generated TypeScript SDK prompt section), or + * `'both'`. See `code-mode.ts` (the tool + dispatch bridge) and + * `ts-types.ts` (the SDK codegen); design in the Code Mode RFC. + * * @module @deepseek-ai/dsh-tools */ import { Context, Service } from 'cordis' +import z from 'schemastery' import type { CallId, ContentBlock, ToolSchema } from '@deepseek-ai/dsh-llm' import { HarnessError } from '@deepseek-ai/dsh-llm' import type { Agent, HookContext } from '@deepseek-ai/dsh-agent' import type {} from '@deepseek-ai/dsh-system-prompt' +import type { CodeRuntime } from '@deepseek-ai/dsh-code-runtime' import type { ToolCallView, ToolResultView } from './presentation.ts' +import { createRunCodeTool, RUN_CODE_NAME, SDK_SECTION_ORDER } from './code-mode.ts' +import { renderToolsSdk } from './ts-types.ts' export { defineTool, @@ -38,6 +49,9 @@ export { type StructuredScalar, } from './json-schema.ts' +export { CodeRunFailedError, RUN_CODE_NAME } from './code-mode.ts' +export { jsonSchemaToTs, renderToolsSdk } from './ts-types.ts' + // The render-intent vocabulary a tool declares via `presentCall`/`presentResult` // lives in its own UI-facing module; re-export it so `@deepseek-ai/dsh-tools` // stays the single public surface for consumers (producers + the ACP bridge). @@ -269,20 +283,100 @@ function errorInfo(error: unknown): ToolErrorInfo | undefined { return error instanceof HarnessError ? { name: error.name, code: error.code } : undefined } +/** How the registry presents its tools to the model (see {@link Config.mode}). */ +export type ToolPresentationMode = 'native' | 'code' | 'both' + +/** Plugin config: how the registered tools are presented to the model. */ +export interface Config { + /** + * The presentation mode. `'native'` (the default) contributes every + * registered tool as a wire function definition — byte-for-byte today's + * behavior. `'code'` contributes exactly ONE wire tool, `run_code`, plus + * the generated `tools:sdk` prompt section declaring every other tool as a + * TypeScript API the program calls. `'both'` contributes every native + * definition AND `run_code` + the SDK section. Non-native modes require a + * loaded `ctx.codeRuntime` whose `language` is `'typescript'` — a missing + * or mismatched runtime rejects every prompt assembly with an actionable + * error (misconfiguration fails loud, before any model request). A + * configured `systemPrompt.toolOrder` naming native tools likewise rejects + * every assembly under `'code'` (those names are no longer contributed) — + * a deployment switching modes updates its order config or drops it. + */ + mode?: ToolPresentationMode +} + /** * Tool registry (`ctx.tools`): tool plugins register definitions; the agent * loop executes calls through the `tools/pre-execute` → dispatch → * `tools/post-execute` pipeline. The registry contributes its schemas into the - * system-prompt assembly. + * system-prompt assembly — WHICH schemas is governed by its `mode` config + * (see {@link Config.mode}); under a non-native mode it also registers the + * `run_code` tool and the `tools:sdk` prompt section itself. */ export class ToolRegistry extends Service { static inject = ['systemPrompt'] - private store = new Map() + static Config: z = z.object({ + mode: z.union(['native', 'code', 'both'] as const).default('native'), + }) - constructor(ctx: Context) { + private store = new Map() + private readonly mode: ToolPresentationMode + + constructor(ctx: Context, config: Config = {}) { super(ctx, 'tools') - ctx.systemPrompt.tools(() => this.schemas()) + // The schema already defaulted an omitted mode; the ?? narrows the + // optional-input type for direct (non-Loader) construction in tests. + this.mode = config.mode ?? 'native' + ctx.systemPrompt.tools(() => this.wireSchemas()) + if (this.mode !== 'native') { + this.register(createRunCodeTool(this, () => this.requireCodeRuntime())) + ctx.systemPrompt.section({ + name: 'tools:sdk', + order: SDK_SECTION_ORDER, + // A lazy thunk over the live store: regenerated at each assembly, in + // lexicographic tool order, so an unchanged tool set renders + // byte-identical text (prefix-cache-friendly) and a mid-session + // registration surfaces exactly like a native-mode tool change. + text: () => { + this.requireCodeRuntime() + return renderToolsSdk(this.schemas().filter(schema => schema.name !== RUN_CODE_NAME)) + }, + }) + } + } + + /** + * The registry's contribution to the wire tool list, per {@link Config.mode}. + * Because `PromptAssembly.tools` is what the loop's request header + * snapshots, the mode's collapse is logged and reconstructable for free. + * Under a non-native mode this is also the loud misconfiguration gate: no + * usable code runtime → every assembly rejects before any model request. + */ + private wireSchemas(): ToolSchema[] { + if (this.mode === 'native') return this.schemas() + this.requireCodeRuntime() + const all = this.schemas() + return this.mode === 'code' ? all.filter(schema => schema.name === RUN_CODE_NAME) : all + } + + /** + * Resolve the code runtime or throw the actionable misconfiguration error. + * Read at use time (assembly / run_code execution), NOT via static + * `inject`: an inject entry would hold `ctx.tools` — and every tool plugin + * behind it — hostage to a code runtime existing even under `mode: + * 'native'` (the loop's optional-backend idiom, same as + * `sessionPersistence`). + */ + private requireCodeRuntime(): CodeRuntime { + const runtime = this.ctx.get('codeRuntime') + if (!runtime) { + throw new Error(`dsh-tools: mode "${this.mode}" requires a code runtime — load a ctx.codeRuntime implementation (e.g. @deepseek-ai/dsh-code-runtime-worker) or set tools mode to "native"`) + } + if (runtime.language !== 'typescript') { + throw new Error(`dsh-tools: mode "${this.mode}" generates a TypeScript SDK, but the loaded code runtime's language is "${runtime.language}"`) + } + return runtime } /** diff --git a/packages/core/tools/src/ts-types.ts b/packages/core/tools/src/ts-types.ts new file mode 100644 index 0000000000..63ebd0f888 --- /dev/null +++ b/packages/core/tools/src/ts-types.ts @@ -0,0 +1,121 @@ +/** + * Code Mode codegen: the pure projection from registered tool schemas to the + * TypeScript SDK text the model programs against (the `tools:sdk` prompt + * section). Sibling of `json-schema.ts` — `schemas()` (native function + * calling) and this module (the generated `declare const tools` surface) are + * two projections of the same store. + * + * TOTAL by design: {@link jsonSchemaToTs} maps the JSON-Schema subset the + * `defineTool` DSL emits and degrades every construct outside it (`$ref`, + * `oneOf`, `integer`, future MCP shapes, …) to `unknown` without ever + * throwing — codegen must never be the thing that fails an assembly. + * Deterministic: a fixed tool set renders byte-identical text (tools in + * lexicographic name order), so the section is prefix-cache-friendly. + * + * @module @deepseek-ai/dsh-tools/src/ts-types + */ + +import type { ToolSchema } from '@deepseek-ai/dsh-llm' + +/** Property names that are valid bare TS identifiers; anything else is quoted. */ +const IDENTIFIER = /^[A-Za-z_$][A-Za-z0-9_$]*$/ + +/** Render an object key: bare when it is a valid identifier, quoted otherwise (every name stays reachable, no aliasing). */ +function renderKey(name: string): string { + return IDENTIFIER.test(name) ? name : JSON.stringify(name) +} + +/** One `indent`-deep line prefix (two spaces per level). */ +function pad(indent: number): string { + return ' '.repeat(indent) +} + +/** A one-line JSDoc block for a schema `description`, or no lines when there is none. */ +function docLines(description: unknown, indent: number): string[] { + if (typeof description !== 'string' || description.length === 0) return [] + // Keep the doc a single-line comment per property: descriptions are prose + // (possibly with newlines); collapse whitespace so the rendered SDK stays + // stable and compact. A comment-closer inside the description is escaped so + // it cannot terminate the generated JSDoc early. + const collapsed = description.replace(/\s+/g, ' ').trim() + return [`${pad(indent)}/** ${collapsed.replaceAll('*/', String.raw`*\/`)} */`] +} + +/** + * Map one JSON-Schema node to a TypeScript type literal. Handles exactly the + * subset the `defineTool` DSL emits — `object` (`properties` + `required`), + * `string` (with `enum` → a literal union), `number`, `boolean`, `array` + * (`items`) — and returns `unknown` for anything else, without throwing. + * @param schema - the JSON-Schema node (any shape; hostile inputs degrade). + * @param indent - the indentation level for nested object members. + * @returns the TS type text (multi-line for objects with properties). + */ +export function jsonSchemaToTs(schema: unknown, indent = 0): string { + if (typeof schema !== 'object' || schema === null) return 'unknown' + const node = schema as Record + switch (node.type) { + case 'string': { + if (Array.isArray(node.enum) && node.enum.length > 0 && node.enum.every(value => typeof value === 'string')) { + return node.enum.map(value => JSON.stringify(value)).join(' | ') + } + return 'string' + } + case 'number': return 'number' + case 'boolean': return 'boolean' + case 'array': { + const item = jsonSchemaToTs(node.items, indent) + // Parenthesize a union item type so `('a' | 'b')[]` parses as intended. + return item.includes('|') ? `(${item})[]` : `${item}[]` + } + case 'object': { + const properties = node.properties + if (typeof properties !== 'object' || properties === null) return 'Record' + const entries = Object.entries(properties as Record) + if (entries.length === 0) return 'Record' + const required = new Set(Array.isArray(node.required) ? node.required.filter(name => typeof name === 'string') : []) + const lines: string[] = ['{'] + for (const [name, prop] of entries) { + const description = typeof prop === 'object' && prop !== null ? (prop as Record).description : undefined + lines.push(...docLines(description, indent + 1)) + lines.push(`${pad(indent + 1)}${renderKey(name)}${required.has(name) ? '' : '?'}: ${jsonSchemaToTs(prop, indent + 1)};`) + } + lines.push(`${pad(indent)}}`) + return lines.join('\n') + } + default: return 'unknown' + } +} + +/** The fixed model-facing usage contract rendered above the declarations (see the Code Mode RFC's "What the model sees"). */ +const SDK_INSTRUCTIONS = `## Writing code for run_code + +Pass \`run_code\` the body of an async TypeScript function (erasable syntax only — no \`enum\` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program: + +- Call tools as \`await tools.name(args)\` — quoted access for exotic names: \`tools["my-tool"](args)\`. Every call resolves to the tool's text output as a string. Tool arguments must be JSON-serializable. +- A FAILED tool call rejects with an \`Error\` carrying the tool's error text — \`try/catch\` it to handle and continue. +- Calls execute sequentially, even under \`Promise.all\`. +- Emit results with \`return\` and/or \`console.log(...)\`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need. + +The available tools:` + +/** + * Render the full `tools:sdk` prompt section: the fixed usage instructions + * plus one `declare const tools` interface covering every given tool. + * Deterministic — tools are emitted in lexicographic name order, so an + * unchanged tool set produces byte-identical text across assemblies. + * @param schemas - the tool schemas to declare (the caller excludes + * `run_code` itself). + * @returns the complete section text. + */ +export function renderToolsSdk(schemas: ToolSchema[]): string { + const sorted = [...schemas].sort((a, b) => a.name < b.name ? -1 : a.name > b.name ? 1 : 0) + const members: string[] = [] + for (const schema of sorted) { + members.push(...docLines(schema.description, 1)) + members.push(`${pad(1)}${renderKey(schema.name)}(args: ${jsonSchemaToTs(schema.parameters, 1)}): Promise;`) + } + const declaration = members.length > 0 + ? `declare const tools: {\n${members.join('\n')}\n}` + : 'declare const tools: {}' + return `${SDK_INSTRUCTIONS}\n\n\`\`\`ts\n${declaration}\n\`\`\`` +} diff --git a/packages/core/tools/tests/code-mode.spec.ts b/packages/core/tools/tests/code-mode.spec.ts new file mode 100644 index 0000000000..32dc161a86 --- /dev/null +++ b/packages/core/tools/tests/code-mode.spec.ts @@ -0,0 +1,523 @@ +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import { CallId } from '@deepseek-ai/dsh-llm' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import { CodeRuntime } from '@deepseek-ai/dsh-code-runtime' +import type { CodeRunRequest, CodeRunResult } from '@deepseek-ai/dsh-code-runtime' +import ToolRegistry, { CodeRunFailedError, RUN_CODE_NAME, defineTool } from '@deepseek-ai/dsh-tools' +import type { Config, PostToolDecision, ToolExecutionResult } from '@deepseek-ai/dsh-tools' +import type { Agent } from '@deepseek-ai/dsh-agent' +import { Session, SessionId } from '@deepseek-ai/dsh-session' +import type { SessionEventMap } from '@deepseek-ai/dsh-session' + +/** + * Code Mode unit tier (per the RFC's plan): provider contribution per mode, + * misconfiguration rejections, the run_code dispatch bridge (serialization, + * abort, JSON normalization, error mapping, events, quiescence), and HMR + * safety — all against an in-repo fake runtime, exactly the + * interface/implementation/consumer shape the seam promises. + */ + +/** A scriptable in-repo CodeRuntime: each test sets `behavior` to drive the bindings however it needs. */ +class FakeRuntime extends CodeRuntime { + readonly language: string + readonly isolation = 'fake' + behavior: (request: CodeRunRequest) => Promise = () => Promise.resolve({ logs: [] }) + lastRequest?: CodeRunRequest + + constructor(ctx: Context, config: { language?: string } = {}) { + super(ctx) + this.language = config.language ?? 'typescript' + } + + run(request: CodeRunRequest): Promise { + this.lastRequest = request + return this.behavior(request) + } +} + +interface SetupOptions { + mode?: Config['mode'] + runtime?: false | { language?: string } + toolOrder?: string[] +} + +async function setup(options: SetupOptions = {}) { + const ctx = new Context() + await ctx.plugin(SystemPrompt, { ...options.toolOrder ? { toolOrder: options.toolOrder } : {} }) + await ctx.plugin(ToolRegistry, { mode: options.mode ?? 'code' }) + let runtime: FakeRuntime | undefined + if (options.runtime !== false) { + await ctx.plugin(FakeRuntime, options.runtime ?? {}) + runtime = ctx.codeRuntime as FakeRuntime + } + return { ctx, tools: ctx.tools, systemPrompt: ctx.systemPrompt, runtime: runtime! } +} + +/** Register a trivial echo tool; returns the calls it received. */ +function registerEcho(ctx: Context, name = 'echo'): unknown[] { + const calls: unknown[] = [] + ctx.tools.register(defineTool({ + name, + description: `Echo tool ${name}.`, + parameters: { value: { type: 'string', required: true } }, + execute(args) { + calls.push(args) + return Promise.resolve([{ type: 'text' as const, text: `${name}:${args.value}` }]) + }, + })) + return calls +} + +/** A structural fake of the owning agent: captures session appends. */ +function fakeAgent(): { agent: Agent; events: { type: string; data: unknown }[] } { + const events: { type: string; data: unknown }[] = [] + const agent = { + session: { + append: (type: string, data: unknown) => { events.push({ type, data }) }, + }, + } as unknown as Agent + return { agent, events } +} + +/** Dispatch run_code through the registry pipeline, as the loop would. */ +async function runCode(ctx: Context, code: string, extras: { agent?: Agent; signal?: AbortSignal } = {}): Promise { + return ctx.tools.execute({ + callId: CallId('call-1'), + name: RUN_CODE_NAME, + arguments: { code }, + ...extras.agent ? { agent: extras.agent } : {}, + ...extras.signal ? { signal: extras.signal } : {}, + }) +} + +describe('mode-aware wire contribution', () => { + it("mode 'native' contributes every schema, no run_code, no SDK section — and needs no runtime", async () => { + const { ctx, systemPrompt } = await setup({ mode: 'native', runtime: false }) + registerEcho(ctx) + const assembly = await systemPrompt.assemble() + expect(assembly.tools.map(tool => tool.name)).toEqual(['echo']) + expect(assembly.sections.some(section => section.name === 'tools:sdk')).toBe(false) + }) + + it("mode 'code' contributes exactly [run_code] plus the SDK section declaring the other tools", async () => { + const { ctx, systemPrompt } = await setup({ mode: 'code' }) + registerEcho(ctx) + const assembly = await systemPrompt.assemble() + expect(assembly.tools.map(tool => tool.name)).toEqual([RUN_CODE_NAME]) + const sdk = assembly.sections.find(section => section.name === 'tools:sdk') + expect(sdk?.text).toContain('declare const tools: {') + expect(sdk?.text).toContain('echo(args:') + expect(sdk?.text).not.toContain('run_code(args:') + }) + + it("mode 'both' contributes every native schema plus run_code, and the SDK section", async () => { + const { ctx, systemPrompt } = await setup({ mode: 'both' }) + registerEcho(ctx) + const assembly = await systemPrompt.assemble() + expect(assembly.tools.map(tool => tool.name)).toEqual(['echo', RUN_CODE_NAME]) + expect(assembly.sections.some(section => section.name === 'tools:sdk')).toBe(true) + }) + + it('renders byte-identical SDK text across consecutive assemblies of an unchanged tool set', async () => { + const { ctx, systemPrompt } = await setup({ mode: 'code' }) + registerEcho(ctx) + const first = await systemPrompt.assemble() + const second = await systemPrompt.assemble() + const text = (assembly: typeof first) => assembly.sections.find(section => section.name === 'tools:sdk')?.text + expect(text(first)).toBe(text(second)) + }) + + it('rejects every assembly when a non-native mode has no code runtime', async () => { + const { systemPrompt } = await setup({ mode: 'code', runtime: false }) + await expect(systemPrompt.assemble()).rejects.toThrow(/requires a code runtime/) + }) + + it("rejects every assembly when the runtime's language is not typescript", async () => { + const { systemPrompt } = await setup({ mode: 'code', runtime: { language: 'python' } }) + await expect(systemPrompt.assemble()).rejects.toThrow(/language is "python"/) + }) + + it("rejects the assembly when toolOrder names a native tool that mode 'code' no longer contributes", async () => { + const { ctx, systemPrompt } = await setup({ mode: 'code', toolOrder: ['echo', ''] }) + registerEcho(ctx) + await expect(systemPrompt.assemble()).rejects.toThrow(/toolOrder lists unregistered tool "echo"/) + }) + + it('removes run_code and the SDK section when the registry fiber disposes (HMR safety)', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt, {}) + await ctx.plugin(FakeRuntime, {}) + const fiber = await ctx.plugin(ToolRegistry, { mode: 'code' }) + expect(ctx.tools.get(RUN_CODE_NAME)).toBeDefined() + await fiber.dispose() + const assembly = await ctx.systemPrompt.assemble() + expect(assembly.tools).toEqual([]) + expect(assembly.sections.some(section => section.name === 'tools:sdk')).toBe(false) + }) +}) + +describe('the run_code dispatch bridge', () => { + it('bridges tool calls, returns only the curated output, and logs one event per dispatch', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + const calls = registerEcho(ctx) + const { agent, events } = fakeAgent() + runtime.behavior = async (request) => { + const tools = request.bindings[0]!.functions + const first = await tools.echo!({ value: 'one' }) + const second = await tools.echo!({ value: 'two' }) + return { logs: [{ source: 'console', level: 'log', text: `saw ${String(first)}` }], value: second } + } + const result = await runCode(ctx, 'const …: string = …', { agent }) + expect(result.isError).toBe(false) + expect(result.content).toEqual([{ type: 'text', text: 'saw echo:one\necho:two' }]) + expect(calls).toEqual([{ value: 'one' }, { value: 'two' }]) + const dispatches = events.filter(event => event.type === 'tool/code-dispatch') + expect(dispatches.map(event => event.data)).toEqual([ + { parentCallId: 'call-1', subCallId: 'call-1:code:1', name: 'echo', arguments: { value: 'one' }, isError: false, resultSummary: 'echo:one' }, + { parentCallId: 'call-1', subCallId: 'call-1:code:2', name: 'echo', arguments: { value: 'two' }, isError: false, resultSummary: 'echo:two' }, + ]) + expect(result.meta).toEqual({ logs: [{ source: 'console', level: 'log', text: 'saw echo:one' }], dispatches: 2 }) + }) + + it('serializes Promise.all dispatches: tool executions never overlap, in submission order', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + const intervals: [string, string][] = [] + let active = 0 + ctx.tools.register(defineTool({ + name: 'probe', + description: 'Records execution overlap.', + parameters: { id: { type: 'string', required: true } }, + async execute(args) { + active++ + expect(active, 'probe executions overlapped').toBe(1) + intervals.push(['enter', args.id]) + await new Promise(resolve => setTimeout(resolve, 20)) + intervals.push(['exit', args.id]) + active-- + return [{ type: 'text' as const, text: args.id }] + }, + })) + runtime.behavior = async (request) => { + const tools = request.bindings[0]!.functions + const values = await Promise.all([tools.probe!({ id: 'a' }), tools.probe!({ id: 'b' }), tools.probe!({ id: 'c' })]) + return { logs: [], value: values.join(',') } + } + const result = await runCode(ctx, 'program') + expect(result.isError).toBe(false) + expect(intervals).toEqual([ + ['enter', 'a'], ['exit', 'a'], + ['enter', 'b'], ['exit', 'b'], + ['enter', 'c'], ['exit', 'c'], + ]) + expect(result.content[0]).toEqual({ type: 'text', text: 'a,b,c' }) + }) + + it('rejects the program-side call when the tool errors, with the tool error text', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + ctx.tools.register(defineTool({ + name: 'fail', + description: 'Always fails.', + parameters: {}, + execute(): Promise { return Promise.reject(new Error('deliberate failure')) }, + })) + runtime.behavior = async (request) => { + try { + await request.bindings[0]!.functions.fail!({}) + return { logs: [], value: 'unreachable' } + } catch (error: unknown) { + return { logs: [], value: `caught: ${error instanceof Error ? error.message : String(error)}` } + } + } + const result = await runCode(ctx, 'program') + expect(result.content[0]).toEqual({ type: 'text', text: 'caught: Error: deliberate failure' }) + }) + + it('a tools/pre-execute deny reaches the program as a binding rejection', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + registerEcho(ctx) + ctx.on('tools/pre-execute', (exec, next) => { + if (exec.name === 'echo') return Promise.resolve({ kind: 'deny' as const, reason: 'not on my watch' }) + return next() + }) + runtime.behavior = async (request) => { + try { + await request.bindings[0]!.functions.echo!({ value: 'x' }) + return { logs: [], value: 'unreachable' } + } catch (error: unknown) { + return { logs: [], value: `denied: ${error instanceof Error ? error.message : String(error)}` } + } + } + const result = await runCode(ctx, 'program') + expect(result.content[0]?.type).toBe('text') + expect((result.content[0] as { text: string }).text).toContain('not on my watch') + }) + + it('rejects a binding argument that does not survive JSON normalization, dispatching nothing', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + const calls = registerEcho(ctx) + const { agent, events } = fakeAgent() + runtime.behavior = async (request) => { + try { + await request.bindings[0]!.functions.echo!({ value: 'x', big: 1n }) + return { logs: [], value: 'unreachable' } + } catch (error: unknown) { + return { logs: [], value: error instanceof Error ? error.message : String(error) } + } + } + const result = await runCode(ctx, 'program', { agent }) + expect((result.content[0] as { text: string }).text).toContain('JSON-serializable') + expect(calls).toEqual([]) + expect(events.filter(event => event.type === 'tool/code-dispatch')).toEqual([]) + }) + + it('dispatches the JSON-normalized value: what the tool sees is what the event logs', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + const calls = registerEcho(ctx) + const { agent, events } = fakeAgent() + runtime.behavior = async (request) => { + // A Date survives structured clone but is not JSON; the bridge + // normalizes it to its JSON form (an ISO string) BEFORE dispatch. + await request.bindings[0]!.functions.echo!({ value: 'x', when: new Date(0) }).catch(() => undefined) + return { logs: [] } + } + await runCode(ctx, 'program', { agent }) + expect(calls).toEqual([{ value: 'x', when: '1970-01-01T00:00:00.000Z' }]) + const dispatch = events.find(event => event.type === 'tool/code-dispatch')?.data as SessionEventMap['tool/code-dispatch'] + expect(dispatch.arguments).toEqual({ value: 'x', when: '1970-01-01T00:00:00.000Z' }) + }) + + it('suppresses sub-call additionalContext (deliberately; pinned)', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + registerEcho(ctx) + ctx.on('tools/post-execute', (exec, _result, next): Promise => { + if (exec.name === 'echo') { + return Promise.resolve({ + kind: 'accept' as const, + additionalContext: { content: [{ type: 'text' as const, text: 'context for the next request' }], source: { kind: 'plugin' as const, plugin: 'test' } }, + }) + } + return next() + }) + runtime.behavior = async (request) => { + await request.bindings[0]!.functions.echo!({ value: 'x' }) + return { logs: [], value: 'done' } + } + const result = await runCode(ctx, 'program') + expect(result.isError).toBe(false) + // The sub-call's context has no safe outlet mid-run; the parent result + // must not carry it either. + expect(result.additionalContext).toBeUndefined() + }) + + it('converts a failed run into a structured isError result carrying kind, message, and captured logs', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + runtime.behavior = () => Promise.resolve({ + logs: [{ source: 'console', level: 'log', text: 'got this far' }], + error: { kind: 'timeout', message: 'compute budget exhausted (300ms busy)' }, + }) + const result = await runCode(ctx, 'program') + expect(result.isError).toBe(true) + expect(result.error).toEqual({ name: 'CodeRunFailedError', code: 'CODE_RUN_FAILED' }) + const text = (result.content[0] as { text: string }).text + expect(text).toContain('code run failed (timeout)') + expect(text).toContain('compute budget exhausted') + expect(text).toContain('got this far') + }) + + it('CodeRunFailedError is a HarnessError with the CODE_RUN_FAILED code', () => { + const error = new CodeRunFailedError('boom') + expect(error.code).toBe('CODE_RUN_FAILED') + expect(error.name).toBe('CodeRunFailedError') + }) + + it('aborting the outer signal aborts the in-flight sub-dispatch and abandons queued ones', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + const seen: string[] = [] + let sawAbort = false + ctx.tools.register(defineTool({ + name: 'slow', + description: 'Slow tool observing its signal.', + parameters: { id: { type: 'string', required: true } }, + async execute(args, exec) { + seen.push(args.id) + await new Promise((resolve) => { + const timer = setTimeout(resolve, 500) + exec.signal?.addEventListener('abort', () => { sawAbort = true; clearTimeout(timer); resolve() }, { once: true }) + }) + return [{ type: 'text' as const, text: args.id }] + }, + })) + const controller = new AbortController() + runtime.behavior = async (request) => { + const tools = request.bindings[0]!.functions + const calls = [tools.slow!({ id: 'first' }).catch(() => 'rejected'), tools.slow!({ id: 'second' }).catch(() => 'rejected')] + setTimeout(() => { controller.abort('user-cancel') }, 50) + await Promise.all(calls) + // A real runtime would be terminated by the abort; the fake honors the + // contract by reporting the abort as the run failure. + return { logs: [], error: { kind: 'abort', message: 'user-cancel' } } + } + const result = await runCode(ctx, 'program', { signal: controller.signal }) + expect(result.isError).toBe(true) + expect((result.content[0] as { text: string }).text).toContain('code run failed (abort)') + expect(seen).toEqual(['first']) + expect(sawAbort).toBe(true) + }) + + it('runs without an owning agent: dispatches work, event logging is skipped', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + const calls = registerEcho(ctx) + runtime.behavior = async (request) => { + await request.bindings[0]!.functions.echo!({ value: 'x' }) + return { logs: [], value: 'ok' } + } + const result = await runCode(ctx, 'program') + expect(result.isError).toBe(false) + expect(calls).toEqual([{ value: 'x' }]) + }) + + it('executing run_code under a missing runtime is a structured isError, not a crash', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt, {}) + await ctx.plugin(ToolRegistry, { mode: 'code' }) + const result = await runCode(ctx, 'program') + expect(result.isError).toBe(true) + expect((result.content[0] as { text: string }).text).toContain('requires a code runtime') + }) + + it('presents the pending call as a generic execute card carrying the program, and the result with the captured output', async () => { + const { ctx } = await setup({ mode: 'code' }) + const tool = ctx.tools.get(RUN_CODE_NAME)! + expect(tool.presentCall?.({ code: 'return 1' })).toEqual({ card: 'generic', title: 'Run code', kind: 'execute', rawInput: 'return 1' }) + const view = tool.presentResult?.({ code: 'return 1' }, { + content: [{ type: 'text', text: 'model-facing' }], + isError: false, + meta: { logs: [{ source: 'console', level: 'log', text: 'printed' }], dispatches: 1 }, + }) + expect(view).toEqual({ card: 'generic', title: 'Run code (1 tool call)', content: [{ type: 'text', text: 'printed' }] }) + // Plural title, and no content when the program printed nothing. + expect(tool.presentResult?.({ code: 'x' }, { content: [], isError: false, meta: { logs: [], dispatches: 2 } })) + .toEqual({ card: 'generic', title: 'Run code (2 tool calls)' }) + // Replay with an unrecognizable meta falls back to the generic rendering. + expect(tool.presentResult?.({ code: 'x' }, { content: [], isError: false, meta: { other: true } })).toBeUndefined() + expect(tool.presentResult?.({ code: 'x' }, { content: [], isError: false })).toBeUndefined() + }) + + it('renders non-text sub-result blocks as placeholders and truncates long event summaries', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + const { agent, events } = fakeAgent() + const long = 'x'.repeat(300) + ctx.tools.register(defineTool({ + name: 'mixed', + description: 'Returns mixed content.', + parameters: {}, + execute() { + return Promise.resolve([ + { type: 'text' as const, text: long }, + { type: 'reasoning' as const, text: 'hidden' }, + ]) + }, + })) + runtime.behavior = async (request) => { + const value = await request.bindings[0]!.functions.mixed!({}) + return { logs: [], value } + } + const result = await runCode(ctx, 'program', { agent }) + expect(result.isError).toBe(false) + expect((result.content[0] as { text: string }).text).toBe(`${long}\n[reasoning content]`) + const dispatch = events.find(event => event.type === 'tool/code-dispatch')?.data as SessionEventMap['tool/code-dispatch'] + expect(dispatch.resultSummary.length).toBe(201) + expect(dispatch.resultSummary.endsWith('…')).toBe(true) + }) + + it('rejects undefined, JSON-throwing, and JSON-unrepresentable binding arguments', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + registerEcho(ctx) + runtime.behavior = async (request) => { + const echo = request.bindings[0]!.functions.echo! + const catchMessage = (promise: Promise) => promise.then(() => 'resolved', (error: unknown) => error instanceof Error ? error.message : String(error)) + return { + logs: [], + value: [ + // undefined passes normalization untouched; the tool's own schema + // validation rejects it with its usual feedback. + await catchMessage(echo(undefined)), + // A toJSON that throws a NON-Error propagates out of JSON.stringify. + await catchMessage(echo({ toJSON() { throw 'raw-throw' } })), + // A bare function is a value JSON cannot represent at all. + await catchMessage(echo(() => 1)), + ].join(' | '), + } + } + const result = await runCode(ctx, 'program') + const text = (result.content[0] as { text: string }).text + expect(text).toContain('must be an object') + expect(text).toContain('JSON-serializable: raw-throw') + expect(text).toContain('a value JSON cannot represent') + }) + + it('renders a non-string completion value inspect-style', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + runtime.behavior = () => Promise.resolve({ logs: [], value: { n: 42 } }) + const result = await runCode(ctx, 'program') + expect((result.content[0] as { text: string }).text).toBe('{ n: 42 }') + }) + + it('reports a pre-aborted outer signal as the run failure without dispatching anything', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + const calls = registerEcho(ctx) + runtime.behavior = (request) => { + // The fake honors the seam contract for an already-aborted signal. + if (request.signal?.aborted) return Promise.resolve({ logs: [], error: { kind: 'abort' as const, message: String(request.signal.reason) } }) + return Promise.resolve({ logs: [], value: 'unreachable' }) + } + const controller = new AbortController() + controller.abort('too-late') + const result = await runCode(ctx, 'program', { signal: controller.signal }) + expect(result.isError).toBe(true) + expect((result.content[0] as { text: string }).text).toContain('code run failed (abort)') + expect(calls).toEqual([]) + }) + + it('rejects a binding invoked after the run is over without dispatching it', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + const calls = registerEcho(ctx) + const controller = new AbortController() + runtime.behavior = async (request) => { + controller.abort('cancelled-mid-run') + const message = await request.bindings[0]!.functions.echo!({ value: 'x' }) + .then(() => 'resolved', (error: unknown) => error instanceof Error ? error.message : String(error)) + return { logs: [], value: message } + } + const result = await runCode(ctx, 'program', { signal: controller.signal }) + expect(result.isError).toBe(false) + expect((result.content[0] as { text: string }).text).toContain('not dispatched') + expect(calls).toEqual([]) + }) + + it('a tool/code-dispatch event never derives a model message', () => { + const session = new Session(SessionId('code-mode-derive')) + session.append('user/message', { content: [{ type: 'text', text: 'hi' }], source: { kind: 'user' } }, { surfaceOp: 'append' }) + session.append('tool/code-dispatch', { + parentCallId: CallId('p1'), + subCallId: CallId('p1:code:1'), + name: 'echo', + arguments: { value: 'x' }, + isError: false, + resultSummary: 'echo:x', + }) + const derived = session.deriveMessages() + expect(derived).toHaveLength(1) + expect(derived[0]?.role).toBe('user') + }) + + it('defaults to native mode under direct construction with no config', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt, {}) + const registry = new ToolRegistry(ctx) + expect(registry.get(RUN_CODE_NAME)).toBeUndefined() + const assembly = await ctx.systemPrompt.assemble() + expect(assembly.sections.some(section => section.name === 'tools:sdk')).toBe(false) + }) +}) diff --git a/packages/core/tools/tests/gen-tool-catalog.spec.ts b/packages/core/tools/tests/gen-tool-catalog.spec.ts index cacc2eef66..88cb05cf7c 100644 --- a/packages/core/tools/tests/gen-tool-catalog.spec.ts +++ b/packages/core/tools/tests/gen-tool-catalog.spec.ts @@ -35,7 +35,7 @@ describe('gen-tool-catalog collectToolCatalog', () => { it('boots every shipped tool package and harvests its model-facing schemas', async () => { const catalog = await collectToolCatalog() const names = catalog.flatMap(entry => entry.schemas.map(s => s.name)).sort() - expect(names).toEqual(['bash', 'bash_kill', 'bash_output', 'edit', 'read', 'subagent', 'todo_write', 'web_fetch', 'web_search', 'write']) + expect(names).toEqual(['bash', 'bash_kill', 'bash_output', 'edit', 'read', 'run_code', 'subagent', 'todo_write', 'web_fetch', 'web_search', 'write']) // Every tool carries a JSON-Schema `parameters` object (what the model sees). for (const entry of catalog) { for (const schema of entry.schemas) { diff --git a/packages/core/tools/tests/ts-types.spec.ts b/packages/core/tools/tests/ts-types.spec.ts new file mode 100644 index 0000000000..df30a58238 --- /dev/null +++ b/packages/core/tools/tests/ts-types.spec.ts @@ -0,0 +1,124 @@ +import { describe, expect, it } from 'vitest' +import { jsonSchemaToTs, renderToolsSdk } from '@deepseek-ai/dsh-tools/src/ts-types.ts' +import { schemaSpecToJsonSchema } from '@deepseek-ai/dsh-tools' +import type { ToolSchema } from '@deepseek-ai/dsh-llm' + +describe('jsonSchemaToTs', () => { + it('maps the defineTool DSL subset', () => { + const cases: [unknown, string][] = [ + [{ type: 'string' }, 'string'], + [{ type: 'number' }, 'number'], + [{ type: 'boolean' }, 'boolean'], + [{ type: 'string', enum: ['a', 'b'] }, '"a" | "b"'], + [{ type: 'array', items: { type: 'number' } }, 'number[]'], + [{ type: 'array', items: { type: 'string', enum: ['x', 'y'] } }, '("x" | "y")[]'], + [{ type: 'array' }, 'unknown[]'], + [{ type: 'object' }, 'Record'], + [{ type: 'object', properties: {} }, 'Record'], + ] + for (const [schema, expected] of cases) { + expect(jsonSchemaToTs(schema), JSON.stringify(schema)).toBe(expected) + } + }) + + it('renders objects with required/optional keys, nested shapes, and per-property docs', () => { + const schema = schemaSpecToJsonSchema({ + path: { type: 'string', required: true, description: 'Absolute file path' }, + limit: { type: 'number' }, + opts: { + type: 'object', + properties: { deep: { type: 'boolean', required: true } }, + }, + }) + expect(jsonSchemaToTs(schema)).toBe([ + '{', + ' /** Absolute file path */', + ' path: string;', + ' limit?: number;', + ' opts?: {', + ' deep: boolean;', + ' };', + '}', + ].join('\n')) + }) + + it('is total: unsupported or hostile constructs degrade to unknown, never throw', () => { + const cases: unknown[] = [ + undefined, + null, + 42, + 'string-schema', + {}, + { type: 'integer' }, + { type: 'null' }, + { oneOf: [{ type: 'string' }] }, + { $ref: '#/defs/x' }, + { type: 'object', properties: 7 }, + { type: 'object', properties: { bad: { $ref: 'x' } } }, + { type: 'string', enum: [1, 2] }, + { type: 'string', enum: [] }, + ] + for (const schema of cases) { + expect(() => jsonSchemaToTs(schema), JSON.stringify(schema)).not.toThrow() + } + expect(jsonSchemaToTs({ type: 'integer' })).toBe('unknown') + expect(jsonSchemaToTs({ oneOf: [] })).toBe('unknown') + expect(jsonSchemaToTs({ type: 'object', properties: 7 })).toBe('Record') + expect(jsonSchemaToTs({ type: 'object', properties: { bad: { $ref: 'x' } }, required: ['bad'] })).toContain('bad: unknown;') + // A non-string-only enum degrades to plain string; an empty one too. + expect(jsonSchemaToTs({ type: 'string', enum: [1, 2] })).toBe('string') + expect(jsonSchemaToTs({ type: 'string', enum: [] })).toBe('string') + // A hostile required list only accepts string members. + expect(jsonSchemaToTs({ type: 'object', properties: { a: { type: 'string' } }, required: [7] })).toContain('a?: string;') + // A property VALUE that is not an object degrades to unknown (and can + // carry no description). + expect(jsonSchemaToTs({ type: 'object', properties: { weird: 42 } })).toContain('weird?: unknown;') + }) + + it('escapes a comment-closer inside a description so the generated JSDoc cannot end early', () => { + const rendered = jsonSchemaToTs({ + type: 'object', + properties: { glob: { type: 'string', description: 'a pattern like packages/*/tool-*/ over here' } }, + }) + expect(rendered).not.toContain('tool-*/ over') + expect(rendered).toContain(String.raw`tool-*\/ over`) + }) +}) + +describe('renderToolsSdk', () => { + const bash: ToolSchema = { + name: 'bash', + description: 'Run a shell command.', + parameters: schemaSpecToJsonSchema({ command: { type: 'string', required: true } }) as unknown as Record, + } + const exotic: ToolSchema = { + name: 'my-mcp.tool', + description: 'Exotic name.', + parameters: schemaSpecToJsonSchema({}) as unknown as Record, + } + + it('declares every tool in lexicographic order with quoted keys for exotic names', () => { + const text = renderToolsSdk([exotic, bash]) + expect(text).toContain('declare const tools: {') + expect(text.indexOf('bash(args:')).toBeGreaterThan(0) + expect(text).toContain('"my-mcp.tool"(args:') + expect(text.indexOf('bash(args:')).toBeLessThan(text.indexOf('"my-mcp.tool"(args:')) + expect(text).toContain('): Promise;') + expect(text).toContain('/** Run a shell command. */') + // The fixed instruction lines the model relies on. + expect(text).toContain('erasable syntax only') + expect(text).toContain('rejects with an `Error`') + expect(text).toContain('sequentially, even under `Promise.all`') + expect(text).toContain('JSON-serializable') + }) + + it('is deterministic: same tool set, byte-identical text regardless of input order', () => { + expect(renderToolsSdk([bash, exotic])).toBe(renderToolsSdk([exotic, bash])) + // Equal names sort stably (the comparator's equal arm). + expect(renderToolsSdk([bash, bash])).toBe(renderToolsSdk([bash, bash])) + }) + + it('renders an empty declaration for an empty tool set', () => { + expect(renderToolsSdk([])).toContain('declare const tools: {}') + }) +}) diff --git a/packages/core/tools/tsconfig.json b/packages/core/tools/tsconfig.json index dedc111d87..68edd3b003 100644 --- a/packages/core/tools/tsconfig.json +++ b/packages/core/tools/tsconfig.json @@ -8,6 +8,12 @@ "src" ], "references": [ + { + "path": "../../core/session" + }, + { + "path": "../../code-runtime/code-runtime" + }, { "path": "../../../vendor/cosmokit" }, diff --git a/packages/hooks/hooks-claude/README.md b/packages/hooks/hooks-claude/README.md index f7afe835d2..306bfdbfeb 100644 --- a/packages/hooks/hooks-claude/README.md +++ b/packages/hooks/hooks-claude/README.md @@ -37,7 +37,7 @@ The hooks **themselves** run in the agent's session workspace: for the agent-sco | `SessionStart` | `agent/session-start` (emit) | additionalContext → `agent.inject()` into the new session (cannot block) | | `UserPromptSubmit` | `agent/prompt-submit` (waterfall) | `deny` → `PromptDecision.block`; additionalContext-only → delegate via `next()` then fold context onto the downstream decision (a later listener can still block/rewrite) | | `PreToolUse` | `tools/pre-execute` (waterfall) | `deny` → `PreToolDecision.deny`; `ask` → `PreToolDecision.ask` | -| `PostToolUse` | `tools/post-execute` (waterfall) | `deny` → `block` with feedback; additionalContext-only → delegate via `next()` then fold context onto the downstream decision | +| `PostToolUse` | `tools/post-execute` (waterfall) | `deny` → `block` with feedback; additionalContext-only → delegate via `next()` then fold context onto the downstream decision (a Code Mode sub-call’s context is dropped by the run_code bridge — see [the pipeline doc](../../../docs/tool-execution-pipeline.md)) | | `Stop` | `agent/turn-continuation` (waterfall) | a blocking Stop hook forces `continue`, feeding its reason as next-step steering | | `SubagentStart` | `subagent/start` (emit) | additionalContext → `agent.inject()` into the live child | | `SubagentStop` | `subagent/end` (emit) | observe-only | diff --git a/packages/hooks/hooks-codex/README.md b/packages/hooks/hooks-codex/README.md index 736e8a5100..b3fbc39928 100644 --- a/packages/hooks/hooks-codex/README.md +++ b/packages/hooks/hooks-codex/README.md @@ -43,7 +43,7 @@ The hooks themselves run in the agent's session workspace: for the agent-scoped | `SessionStart` | `agent/session-start` (emit) | a plain-stdout hook's output → additionalContext → `agent.inject()` | | `UserPromptSubmit` | `agent/prompt-submit` (waterfall) | `block` (exit 2) → `PromptDecision.block`; additionalContext-only → delegate via `next()` then fold context onto the downstream decision | | `PreToolUse` | `tools/pre-execute` (waterfall) | `block` → `PreToolDecision.deny` (no `allow`/`ask`) | -| `PostToolUse` | `tools/post-execute` (waterfall) | `block` → `block` with feedback; additionalContext-only → delegate via `next()` then fold context onto the downstream decision | +| `PostToolUse` | `tools/post-execute` (waterfall) | `block` → `block` with feedback; additionalContext-only → delegate via `next()` then fold context onto the downstream decision (a Code Mode sub-call’s context is dropped by the run_code bridge — see [the pipeline doc](../../../docs/tool-execution-pipeline.md)) | | `Stop` | `agent/turn-continuation` (waterfall) | a blocking Stop hook forces `continue` with the reason as next-step steering | A tool call's payload carries the real `tool_name` (the same value the matcher tests) and Codex's `tool_input: { command }` shape (the `command` arg when present, else `''`). The matcher subject is the tool name (`PreToolUse`/`PostToolUse`) or the session source (`SessionStart`); `UserPromptSubmit`/`Stop` ignore matchers. diff --git a/packages/ui/acp-agent/package.json b/packages/ui/acp-agent/package.json index e8b4f3723b..940a1cadab 100644 --- a/packages/ui/acp-agent/package.json +++ b/packages/ui/acp-agent/package.json @@ -36,6 +36,7 @@ "@deepseek-ai/dsh-acp": "^0.0.1", "@deepseek-ai/dsh-agent-core": "^0.0.1", "@deepseek-ai/dsh-session-persistence-jsonl": "^0.0.1", + "@deepseek-ai/dsh-tools": "^0.0.1", "cordis": "^4.0.0-rc.6", "schemastery": "^3.17.0" }, @@ -45,6 +46,7 @@ "@deepseek-ai/dsh-app-boot": "workspace:^", "@deepseek-ai/dsh-acp": "workspace:^", "@deepseek-ai/dsh-agent-core": "workspace:^", + "@deepseek-ai/dsh-tools": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "@deepseek-ai/dsh-session-persistence-jsonl": "workspace:^", "cordis": "^4.0.0-rc.6", diff --git a/packages/ui/acp-agent/src/index.ts b/packages/ui/acp-agent/src/index.ts index 898ec9a509..0f5cbc630c 100644 --- a/packages/ui/acp-agent/src/index.ts +++ b/packages/ui/acp-agent/src/index.ts @@ -34,6 +34,7 @@ import type { Context } from 'cordis' import z from 'schemastery' import * as acp from '@deepseek-ai/dsh-acp' import * as agentCore from '@deepseek-ai/dsh-agent-core' +import ToolRegistry, { type Config as ToolsConfig } from '@deepseek-ai/dsh-tools' import SessionPersistenceJsonl from '@deepseek-ai/dsh-session-persistence-jsonl' export const name = 'acp-agent' @@ -44,7 +45,8 @@ export const name = 'acp-agent' * pre-created agent — ACP creates agents at `session/new`); `persona` is the * deployment persona (forwarded to the system-prompt plugin); `toolOrder` is * the explicit model-facing tool order (forwarded to the system-prompt plugin); - * `persistenceRoot` is the JSONL backend's directory. + * `tools` is the tool registry's config (its presentation `mode`, forwarded + * through agent-core); `persistenceRoot` is the JSONL backend's directory. */ export interface Config { /** Model name for ACP-created agents (must have a registered adapter). */ @@ -53,6 +55,8 @@ export interface Config { persona?: string /** Explicit model-facing tool order (the system-prompt plugin's `toolOrder` config; see dsh-system-prompt). */ toolOrder?: string[] + /** Tool-registry config — its presentation `mode` (forwarded through agent-core; see dsh-tools). */ + tools?: ToolsConfig /** Directory the JSONL session backend writes under. Defaults to `./.sessions`. */ persistenceRoot?: string } @@ -64,6 +68,7 @@ export const Config: z = z.object({ // order" (the owning dsh-system-prompt schema does the same), while // schemastery's native [] default would read as an invalid configured list. toolOrder: z.array(z.string()).default(undefined as unknown as string[]), + tools: ToolRegistry.Config, persistenceRoot: z.string().default('./.sessions'), }) @@ -78,6 +83,7 @@ export function apply(ctx: Context, config: Config): void { ctx.plugin(agentCore, { ...config.persona !== undefined ? { persona: config.persona } : {}, ...config.toolOrder !== undefined ? { toolOrder: config.toolOrder } : {}, + ...config.tools !== undefined ? { tools: config.tools } : {}, }) ctx.plugin(SessionPersistenceJsonl, { root: config.persistenceRoot ?? './.sessions' }) ctx.plugin(acp, { model: config.model }) diff --git a/packages/ui/stdio-agent/package.json b/packages/ui/stdio-agent/package.json index b8cf84cac4..bcac9d8d5d 100644 --- a/packages/ui/stdio-agent/package.json +++ b/packages/ui/stdio-agent/package.json @@ -38,6 +38,7 @@ "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-agent-core": "^0.0.1", "@deepseek-ai/dsh-session": "^0.0.1", + "@deepseek-ai/dsh-tools": "^0.0.1", "@deepseek-ai/dsh-session-persistence-jsonl": "^0.0.1", "cordis": "^4.0.0-rc.6", "schemastery": "^3.17.0" @@ -52,6 +53,7 @@ "@deepseek-ai/dsh-agent-core": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", + "@deepseek-ai/dsh-tools": "workspace:^", "@deepseek-ai/dsh-session-persistence-jsonl": "workspace:^", "cordis": "^4.0.0-rc.6", "schemastery": "^3.17.0" diff --git a/packages/ui/stdio-agent/src/index.ts b/packages/ui/stdio-agent/src/index.ts index 7d36db373e..f0328349aa 100644 --- a/packages/ui/stdio-agent/src/index.ts +++ b/packages/ui/stdio-agent/src/index.ts @@ -43,6 +43,7 @@ import ConsoleExporter from '@cordisjs/plugin-logger-console' import z from 'schemastery' import { AgentId } from '@deepseek-ai/dsh-agent' import { SessionId } from '@deepseek-ai/dsh-session' +import ToolRegistry, { type Config as ToolsConfig } from '@deepseek-ai/dsh-tools' import * as agentCore from '@deepseek-ai/dsh-agent-core' import SessionPersistenceJsonl from '@deepseek-ai/dsh-session-persistence-jsonl' import * as uiStdio from './stdio-chat.ts' @@ -64,6 +65,8 @@ export interface Config { persona?: string /** Explicit model-facing tool order (the system-prompt plugin's `toolOrder` config; see dsh-system-prompt). */ toolOrder?: string[] + /** Tool-registry config — its presentation `mode` (forwarded through agent-core; see dsh-tools). */ + tools?: ToolsConfig /** Directory the JSONL session backend writes under. Defaults to `./.sessions`. */ persistenceRoot?: string /** stdin-chat banner printed once on start. Defaults to `'ready.'`. */ @@ -83,6 +86,7 @@ export const Config: z = z.object({ // order" (the owning dsh-system-prompt schema does the same), while // schemastery's native [] default would read as an invalid configured list. toolOrder: z.array(z.string()).default(undefined as unknown as string[]), + tools: ToolRegistry.Config, persistenceRoot: z.string().default('./.sessions'), welcome: z.string().default('ready.'), resumeSessionId: z.string(), @@ -100,6 +104,7 @@ export function apply(ctx: Context, config: Config): void { ctx.plugin(agentCore, { ...config.persona !== undefined ? { persona: config.persona } : {}, ...config.toolOrder !== undefined ? { toolOrder: config.toolOrder } : {}, + ...config.tools !== undefined ? { tools: config.tools } : {}, agents: [{ id: AgentId('main'), model: config.model, diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 03a47d6866..88bd9d1147 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -303,13 +303,23 @@ importers: version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) packages/core/tools: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 devDependencies: '@deepseek-ai/dsh-agent': specifier: workspace:^ version: link:../agent + '@deepseek-ai/dsh-code-runtime': + specifier: workspace:^ + version: link:../../code-runtime/code-runtime '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm + '@deepseek-ai/dsh-session': + specifier: workspace:^ + version: link:../session '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../system-prompt @@ -921,6 +931,9 @@ importers: '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../../core/system-prompt + '@deepseek-ai/dsh-tools': + specifier: workspace:^ + version: link:../../core/tools cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@vendor+include)(@cordisjs/plugin-loader@vendor+loader) @@ -972,6 +985,9 @@ importers: '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../../core/system-prompt + '@deepseek-ai/dsh-tools': + specifier: workspace:^ + version: link:../../core/tools cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@vendor+include)(@cordisjs/plugin-loader@vendor+loader) diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 2848578f49..81829f121a 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -155,8 +155,8 @@ const SERVICE_ROLES: ServiceRole[] = [ title: 'Code-execution seam', mode: 'seam', implementations: ['code-runtime-worker'], - consumers: [], - note: 'Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the Code Mode RFC specifies the worker-thread backend and the tool-registry consumer).', + consumers: ['tools'], + note: 'Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the tool registry consumes it for Code Mode).', }, { key: 'fs', @@ -641,7 +641,7 @@ function renderToolPipeline(): string { ' denied["deny or ask
tool body skipped"]', ' toolBody["Registered tool execute() body"]', ` fsGate["${mermaidCode('fs/write-intent')} or ${mermaidCode('fs/edit-intent')}
tool-fs mutations only"]`, - ` owned["Tool-owned session events
${mermaidCode('todo/write')}, ${mermaidCode('fs/observed')}, ${mermaidCode('hook/invoked')}, ${mermaidCode('hook/result')}"]`, + ` owned["Tool-owned session events
${mermaidCode('todo/write')}, ${mermaidCode('fs/observed')}, ${mermaidCode('hook/invoked')}, ${mermaidCode('hook/result')}, ${mermaidCode('tool/code-dispatch')}"]`, ` post["${mermaidCode('tools/post-execute')} waterfall
accept, block, replace, add context"]`, ' context["Buffered additionalContext
context/message after all tool results"]', ` toolResult["Session event: ${mermaidCode('tool/result')}
single model-facing outcome"]`, @@ -661,7 +661,7 @@ function renderToolPipeline(): string { ' toolResult --> presentResult', '```', '', - 'Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate, while hook bridges and future permission prompts live on the generic tool waterfalls. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service.', + 'Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate, while hook bridges and future permission prompts live on the generic tool waterfalls. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service. Code Mode rides the same pipeline twice over: `run_code` is itself a registered tool body, and each tool call its program makes re-enters `ctx.tools.execute()` through BOTH waterfalls — serialized one at a time, logged as a `tool/code-dispatch` session event, with a deny surfacing to the program as a binding rejection (a sub-call\'s `additionalContext` is deliberately dropped — no safe outlet mid-run preserves call/result adjacency).', '', ...maintenanceFooter(maintenance), ].join('\n') diff --git a/scripts/gen-tool-catalog.ts b/scripts/gen-tool-catalog.ts index 24739e1388..67964aae36 100644 --- a/scripts/gen-tool-catalog.ts +++ b/scripts/gen-tool-catalog.ts @@ -38,7 +38,7 @@ import { basename, resolve } from 'node:path' import { Context } from 'cordis' import type { ToolSchema } from '@deepseek-ai/dsh-llm' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' -import ToolRegistry from '@deepseek-ai/dsh-tools' +import ToolRegistry, { type Config as ToolsConfig } from '@deepseek-ai/dsh-tools' import LocalBashExecutor from '@deepseek-ai/dsh-bash-local' import LocalFileSystem from '@deepseek-ai/dsh-fs-local' import WebService from '@deepseek-ai/dsh-web' @@ -84,6 +84,13 @@ interface ToolPackage { /** Plug the injected seams + the tool plugin onto a context that already * carries `systemPrompt` + `tools`. */ mount: (ctx: Context) => Promise + /** + * Config for the caller's `ToolRegistry` mount. The registry itself ships a + * model-facing tool (`run_code`, registered under a non-native `mode`), so + * ITS catalog entry boots the registry in the mode that surfaces it; + * every other entry uses the default (native) registry. + */ + toolsConfig?: ToolsConfig /** * A deployment note rendered after the package's tools, for a fact that * booting the package alone cannot show. The registered tool NAME can be a @@ -100,6 +107,20 @@ interface ToolPackage { * guard proves it is exhaustive against the on-disk glob. */ const TOOL_PACKAGES: ToolPackage[] = [ + { + pkg: '@deepseek-ai/dsh-tools', + dir: 'tools', + source: 'packages/core/tools/src/code-mode.ts', + requires: ['ctx.tools', 'ctx.codeRuntime (execution time)', 'ctx.systemPrompt'], + writes: ['tool/call', 'one tool/code-dispatch per bridged sub-call', 'tool/result'], + // The registry's OWN tool: run_code exists only under a non-native mode + // (the registry registers it in its constructor; the code runtime is read + // at assembly/execution time, so the schema harvest needs none mounted). + toolsConfig: { mode: 'code' }, + async mount() {}, + note: + 'Registered by the tool registry itself under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the ONLY wire tool; the other registered tools are declared to the model as a generated TypeScript SDK prompt section instead, and a program calls them through port-bridged bindings that dispatch through the ordinary tools/pre-execute → tools/post-execute pipeline, one at a time.', + }, { pkg: '@deepseek-ai/dsh-tool-bash', dir: 'tool-bash', @@ -231,7 +252,7 @@ export async function collectToolCatalog(packages: ToolPackage[] = TOOL_PACKAGES // fiber) — the repo's "dispose must reach quiescence" rule. try { await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) + await ctx.plugin(ToolRegistry, entry.toolsConfig ?? {}) await entry.mount(ctx) const schemas = ctx.tools.schemas().sort((a, b) => a.name.localeCompare(b.name)) catalog.push({ From 84088300bc437188e8f90f5044ea9907e467afb6 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Wed, 8 Jul 2026 13:39:51 +0800 Subject: [PATCH 057/232] fix: pre-dispatch rejection of unloggable args, mutation-proof event copies, proto-safe bindings (Codex round 1) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Three findings from the PR-4 convergence round: (A) A root-undefined binding argument passed normalization untouched, so the sub-call DISPATCHED and only then failed the tool/code-dispatch append (Session.append rejects undefined event data) — a sub-call executed with no log record, violating the nothing-executes-unlogged contract. And the tool received the SAME object later handed to the append, so a tool mutating its args desynced the logged record from what was dispatched (or re-poisoned the append). jsonNormalizeArgs now rejects undefined up front with a model-correctable message and returns TWO independent parses of the canonical JSON text: the tool gets one, the event logs the sibling — identical by construction, mutation-proof. (B) The bridge built its bindings record with plain-object assignment, so a registered tool named __proto__ hit the prototype setter and silently vanished (the runtime host resolves binding names as own properties). The record is now null-prototype with defineProperty, mirroring the worker-side namespace build. (B) The header-pin sanity assertions ran only inside NON-pinning scenarios, so a class consisting solely of its pinning scenario (the two Code Mode classes) would accept a re-recorded pin carrying several headers or a header-delta. A fixtures meta-test now asserts every pinning fixture directly. --- examples/acp-agent/tests/acp.snapshot.ts | 14 +++++ packages/core/tools/src/code-mode.ts | 42 +++++++++------ packages/core/tools/tests/code-mode.spec.ts | 57 ++++++++++++++++++--- 3 files changed, 92 insertions(+), 21 deletions(-) diff --git a/examples/acp-agent/tests/acp.snapshot.ts b/examples/acp-agent/tests/acp.snapshot.ts index fbc6af65b4..5a22209c16 100644 --- a/examples/acp-agent/tests/acp.snapshot.ts +++ b/examples/acp-agent/tests/acp.snapshot.ts @@ -408,6 +408,20 @@ describe('snapshot fixtures', () => { }) }) + it('every pinning fixture carries exactly one request/header and no deltas', async () => { + // The live uniformity guard runs only in NON-pinning scenarios, so a + // class made of just its pinning scenario (the Code Mode classes) would + // otherwise accept a re-recorded pin with several headers or a mid-run + // header-delta — shapes the pin design cannot represent. Assert the + // committed pins directly. + for (const scenario of pinningByClass.values()) { + const fixture = await readFile(join(SNAPSHOTS_DIR, scenario.name, 'session.jsonl'), 'utf8') + const headers = normalizedHeaders(fixture, fixtureContext(fixture)) + expect(headers.length, `${scenario.name}: a pinning fixture must carry exactly one request/header`).toBe(1) + expect(headerDeltaCount(fixture), `${scenario.name}: a pinning fixture must carry no request/header-delta`).toBe(0) + } + }) + it('committed fixtures carry request-header content ONLY in the pinning scenario', async () => { // The whole point of the pin: a system-prompt or tool-schema change must // churn exactly one committed line. A non-pinning fixture that carries the diff --git a/packages/core/tools/src/code-mode.ts b/packages/core/tools/src/code-mode.ts index be3b7c91af..904c65ef0e 100644 --- a/packages/core/tools/src/code-mode.ts +++ b/packages/core/tools/src/code-mode.ts @@ -87,17 +87,21 @@ function summarize(text: string): string { } /** - * JSON-normalize one binding call's argument: a `JSON.parse(JSON.stringify(…))` - * round-trip, so the value dispatched to the tool and the value logged on the - * `tool/code-dispatch` event are the same JSON value by construction (the - * runtime's structured-clone boundary is wider than JSON; the session log - * accepts only JSON). A value that does not survive (`BigInt`, a circular - * structure, a bare function) rejects that one call with a model-correctable - * error. `undefined` passes through — the tool's own schema validation - * rejects it with its usual "must be an object" feedback. + * JSON-normalize one binding call's argument into TWO independent parses of + * the same canonical text: `dispatched` goes to the tool, `logged` to the + * `tool/code-dispatch` event — identical by construction (the runtime's + * structured-clone boundary is wider than JSON; the session log accepts only + * JSON), and separate objects, so a tool mutating its args can neither + * desync the log from what was dispatched nor re-poison the append. A value + * that does not survive the round-trip (`undefined` — the log rejects it as + * event data — `BigInt`, a circular structure, a bare function) rejects that + * one call BEFORE dispatch with a model-correctable error: nothing ever + * executes unlogged. */ -function jsonNormalizeArgs(value: unknown): unknown { - if (value === undefined) return undefined +function jsonNormalizeArgs(value: unknown): { dispatched: unknown; logged: unknown } { + if (value === undefined) { + throw new Error('tool arguments must be JSON-serializable (call the tool with an arguments object, e.g. `{}`)') + } let text: string | undefined try { text = JSON.stringify(value) @@ -108,7 +112,7 @@ function jsonNormalizeArgs(value: unknown): unknown { // root really yields `undefined` at runtime — the guard is live. // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition if (text === undefined) throw new Error('tool arguments must be JSON-serializable (got a value JSON cannot represent)') - return JSON.parse(text) as unknown + return { dispatched: JSON.parse(text) as unknown, logged: JSON.parse(text) as unknown } } /** Render the program's completion value for the model-facing result text (`''` when the program returned nothing). */ @@ -198,7 +202,7 @@ export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () => const result = await registry.execute({ callId: subCallId, name, - arguments: normalized, + arguments: normalized.dispatched, ...exec.agent ? { agent: exec.agent } : {}, signal: runController.signal, }) @@ -212,7 +216,10 @@ export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () => parentCallId: exec.callId, subCallId, name, - arguments: normalized, + // The SIBLING parse of the dispatched value: byte-identical JSON, + // but a separate object — a tool mutating its args cannot desync + // this record from what it actually received. + arguments: normalized.logged, isError: result.isError, resultSummary: summarize(text), }) @@ -231,10 +238,15 @@ export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () => return outcome.text } - const functions: Record = {} + // Null-prototype + defineProperty, mirroring the worker-side namespace + // build: a registered tool named `__proto__` must become an ordinary + // own key (a plain-object assignment would hit the prototype setter, + // silently dropping the binding), and the runtime host resolves + // binding names as own properties only. + const functions: Record = Object.create(null) as Record for (const schema of registry.schemas()) { if (schema.name === RUN_CODE_NAME) continue - functions[schema.name] = binding(schema.name) + Object.defineProperty(functions, schema.name, { enumerable: true, value: binding(schema.name) }) } try { diff --git a/packages/core/tools/tests/code-mode.spec.ts b/packages/core/tools/tests/code-mode.spec.ts index 32dc161a86..7fcd0890e6 100644 --- a/packages/core/tools/tests/code-mode.spec.ts +++ b/packages/core/tools/tests/code-mode.spec.ts @@ -431,17 +431,18 @@ describe('the run_code dispatch bridge', () => { expect(dispatch.resultSummary.endsWith('…')).toBe(true) }) - it('rejects undefined, JSON-throwing, and JSON-unrepresentable binding arguments', async () => { + it('rejects undefined, JSON-throwing, and JSON-unrepresentable binding arguments BEFORE dispatch', async () => { const { ctx, runtime } = await setup({ mode: 'code' }) - registerEcho(ctx) + const calls = registerEcho(ctx) + const { agent, events } = fakeAgent() runtime.behavior = async (request) => { const echo = request.bindings[0]!.functions.echo! const catchMessage = (promise: Promise) => promise.then(() => 'resolved', (error: unknown) => error instanceof Error ? error.message : String(error)) return { logs: [], value: [ - // undefined passes normalization untouched; the tool's own schema - // validation rejects it with its usual feedback. + // Root undefined must reject up front: the event log rejects it as + // data, and nothing may execute unlogged. await catchMessage(echo(undefined)), // A toJSON that throws a NON-Error propagates out of JSON.stringify. await catchMessage(echo({ toJSON() { throw 'raw-throw' } })), @@ -450,11 +451,55 @@ describe('the run_code dispatch bridge', () => { ].join(' | '), } } - const result = await runCode(ctx, 'program') + const result = await runCode(ctx, 'program', { agent }) const text = (result.content[0] as { text: string }).text - expect(text).toContain('must be an object') + expect(text).toContain('call the tool with an arguments object') expect(text).toContain('JSON-serializable: raw-throw') expect(text).toContain('a value JSON cannot represent') + // None of the three dispatched, none logged. + expect(calls).toEqual([]) + expect(events.filter(event => event.type === 'tool/code-dispatch')).toEqual([]) + }) + + it('logs the value the tool RECEIVED even when the tool mutates its arguments', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + const { agent, events } = fakeAgent() + ctx.tools.register(defineTool({ + name: 'mutator', + description: 'Mutates its own args object.', + parameters: { list: { type: 'array', required: true } }, + execute(args) { + args.list.push('injected-by-tool') + return Promise.resolve([{ type: 'text' as const, text: 'mutated' }]) + }, + })) + runtime.behavior = async (request) => { + await request.bindings[0]!.functions.mutator!({ list: ['original'] }) + return { logs: [] } + } + const result = await runCode(ctx, 'program', { agent }) + expect(result.isError).toBe(false) + const dispatch = events.find(event => event.type === 'tool/code-dispatch')?.data as SessionEventMap['tool/code-dispatch'] + expect(dispatch.arguments).toEqual({ list: ['original'] }) + }) + + it('exposes a tool named __proto__ as an ordinary own binding', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + ctx.tools.register(defineTool({ + name: '__proto__', + description: 'A prototype-colliding tool name.', + parameters: {}, + execute() { return Promise.resolve([{ type: 'text' as const, text: 'proto-tool-ok' }]) }, + })) + runtime.behavior = async (request) => { + const functions = request.bindings[0]!.functions + expect(Object.getPrototypeOf(functions)).toBeNull() + const value = await functions['__proto__']!({}) + return { logs: [], value } + } + const result = await runCode(ctx, 'program') + expect(result.isError).toBe(false) + expect(result.content[0]).toEqual({ type: 'text', text: 'proto-tool-ok' }) }) it('renders a non-string completion value inspect-style', async () => { From 5d451bb2a0c2f3c291905f707895b100ed59415c Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Wed, 8 Jul 2026 14:06:24 +0800 Subject: [PATCH 058/232] feat(tools): add ToolDefinition.timeoutMs declared+validated via defineTool A tool declares its cooperative timeout budget on its own definition rather than a deployment naming it in a central config map. The field never reaches the model (schemas() whitelists name/description/parameters) and defineTool rejects a non-positive-finite value at authorship. --- packages/core/tools/README.md | 4 ++- packages/core/tools/src/index.ts | 8 +++++ packages/core/tools/src/schema.ts | 11 +++++++ packages/core/tools/tests/tools.spec.ts | 43 +++++++++++++++++++++++++ 4 files changed, 65 insertions(+), 1 deletion(-) diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index d0edd74385..bb1603f68a 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -26,7 +26,7 @@ Tool registry and execution pipeline. Tool plugins register their schemas and ex ### Key types -- `ToolDefinition` — `ToolSchema` + `execute(args, exec): Promise` (the bare array is the model-facing content; the object form additionally attaches an opaque, JSON-serializable `meta` presentation payload persisted on the `tool/result` event and handed back to `presentResult`), plus optional `presentCall(args)` / `presentResult(args, result)` for tool-owned UI presentation (see below). +- `ToolDefinition` — `ToolSchema` + `execute(args, exec): Promise` (the bare array is the model-facing content; the object form additionally attaches an opaque, JSON-serializable `meta` presentation payload persisted on the `tool/result` event and handed back to `presentResult`), plus optional `presentCall(args)` / `presentResult(args, result)` for tool-owned UI presentation (see below). It also carries an optional cooperative timeout budget `timeoutMs?: number` (ms) enforced by `@deepseek-ai/dsh-timeout-policy`, never sent to the model. - `ToolExecution` — one pending tool call: `{ callId, name, arguments, agent?, signal? }`. - `ToolExecutionResult` — outcome: `{ callId, content, isError, error?, additionalContext?, meta? }`. On failure with a `HarnessError`, `error: { name, code }` carries the structured failure class alongside the model-facing text (the loop forwards it onto the `tool/result` session event for retry/sandbox plugins and replay). `additionalContext` (a `HookContext`) ferries any `tools/post-execute` context up to the loop, which buffers it and appends it as a `context/message` after all `tool/result`s in the step. `meta` is the tool's opaque presentation payload from a successful `execute` (the object return form); the loop forwards it onto the `tool/result` session event for result-card rendering. - `PreToolDecision` — `{kind:'allow'}` | `{kind:'deny', reason}` | `{kind:'ask', reason?}`. Input rewrite (changing `arguments`) is deliberately NOT offered (it would desync the pre-execution audit/history/UI from what ran — its own proposed RFC); `ask` degrades to `deny` until the permission system lands. @@ -72,6 +72,8 @@ A `defineTool` tool also **validates the model-generated arguments against its ` See `defineTool`, `validateArgs`, `ToolArgsError`, `SchemaSpec`, `InferArgs`, and `schemaSpecToJsonSchema` in the public API for details. +`defineTool` also validates an optional `timeoutMs` at definition time when present: it must be a positive finite number, or the helper throws — the budget is attached to the produced `ToolDefinition` (for `@deepseek-ai/dsh-timeout-policy`) and never reaches the model. + ### Structured-output schema subset A separate vocabulary for callers that DEMAND a machine-readable value from an agent — the subagent seam's `SubagentStartRequest.outputSchema` (and, by extension, a workflow's `agent({ schema })`). Unlike `SchemaSpec` (the author-facing DSL for tool parameters), a `StructuredOutputSchema` is an object-rooted **raw JSON Schema subset** as data: it travels verbatim to the model as a forced tool's `parameters`, and the produced value is validated against it. diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index 7c6678540c..2b038f1c94 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -138,6 +138,14 @@ export type ToolExecuteReturn = ContentBlock[] | { content: ContentBlock[]; meta /** A registered tool: its schema plus the execution function. */ export interface ToolDefinition extends ToolSchema { execute(args: unknown, exec: ToolExecution): Promise + /** + * Cooperative tool-call timeout budget in milliseconds. Omit for no deadline. + * Enforced by `@deepseek-ai/dsh-timeout-policy` (a `tools/execute` wrapper); it + * is NEVER sent to the model — `schemas()` whitelists only name/description/ + * parameters. Declaring it asserts this tool forwards `exec.signal` to a + * cooperative implementation that can reach quiescence when the signal aborts. + */ + timeoutMs?: number /** * Optional: how to present the PENDING state of one call in a UI, derived from * the call's `args` (parsed arguments, `unknown` — the tool validates/narrows diff --git a/packages/core/tools/src/schema.ts b/packages/core/tools/src/schema.ts index 16eff5c324..1a428ffd40 100644 --- a/packages/core/tools/src/schema.ts +++ b/packages/core/tools/src/schema.ts @@ -295,6 +295,13 @@ export interface DefineToolOptions { * standard JSON Schema at runtime. */ parameters: S + /** + * Optional cooperative tool-call timeout budget in milliseconds. When given it + * must be a positive finite number; it is attached to the produced + * {@link ToolDefinition} for `@deepseek-ai/dsh-timeout-policy` to enforce and + * is never sent to the model. + */ + timeoutMs?: number /** * Tool execution function. `args` is typed as {@link InferArgs} — zero * casts needed. Returns either a bare {@link ContentBlock}`[]` (model-facing @@ -362,10 +369,14 @@ export function defineTool(options: DefineToolOptions): const userPresentCall = options.presentCall // eslint-disable-next-line @typescript-eslint/unbound-method const userPresentResult = options.presentResult + if (options.timeoutMs !== undefined && (!Number.isFinite(options.timeoutMs) || options.timeoutMs <= 0)) { + throw new Error(`defineTool(${options.name}): timeoutMs must be a positive finite number`) + } const tool: ToolDefinition = { name: options.name, description: options.description, parameters: schemaSpecToJsonSchema(options.parameters) as unknown as Record, + ...(options.timeoutMs !== undefined ? { timeoutMs: options.timeoutMs } : {}), async execute(args: unknown, exec: ToolExecution): Promise { // Validate the model-generated args before the typed body runs. On // mismatch we throw ToolArgsError; the registry turns it into an diff --git a/packages/core/tools/tests/tools.spec.ts b/packages/core/tools/tests/tools.spec.ts index 5207915df8..98be207159 100644 --- a/packages/core/tools/tests/tools.spec.ts +++ b/packages/core/tools/tests/tools.spec.ts @@ -62,6 +62,17 @@ describe('ToolRegistry', () => { expect(schema.execute).toBeUndefined() }) + it('schemas() excludes timeoutMs — the budget must never reach the model', async () => { + const ctx = await setup() + ctx.tools.register(defineTool({ + name: 'budgeted', description: 'has a budget', parameters: {}, timeoutMs: 5_000, + async execute() { return [{ type: 'text' as const, text: 'ok' }] }, + })) + const schema = ctx.tools.schemas().find(s => s.name === 'budgeted') + expect(schema).toBeDefined() + expect('timeoutMs' in (schema as object)).toBe(false) + }) + it('executes a tool and returns its content', async () => { const ctx = await setup() ctx.tools.register(echoTool) @@ -1131,6 +1142,38 @@ describe('defineTool validation (the runtime-validation RFC, part 1)', () => { const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'raw', arguments: {} }) expect(result.isError).toBe(false) }) + + it('attaches a positive-finite timeoutMs to the definition', () => { + const tool = defineTool({ + name: 'x', description: 'd', parameters: {}, timeoutMs: 30_000, + async execute() { return [{ type: 'text' as const, text: 'ok' }] }, + }) + expect(tool.timeoutMs).toBe(30_000) + }) + + it('omits timeoutMs when not declared', () => { + const tool = defineTool({ + name: 'x', description: 'd', parameters: {}, + async execute() { return [{ type: 'text' as const, text: 'ok' }] }, + }) + expect(tool.timeoutMs).toBeUndefined() + }) + + it('throws when timeoutMs is zero or negative', () => { + const make = (ms: number) => defineTool({ + name: 'x', description: 'd', parameters: {}, timeoutMs: ms, + async execute() { return [{ type: 'text' as const, text: 'ok' }] }, + }) + expect(() => make(0)).toThrow('timeoutMs must be a positive finite number') + expect(() => make(-5)).toThrow('positive finite number') + }) + + it('throws when timeoutMs is non-finite', () => { + expect(() => defineTool({ + name: 'x', description: 'd', parameters: {}, timeoutMs: Infinity, + async execute() { return [{ type: 'text' as const, text: 'ok' }] }, + })).toThrow('positive finite number') + }) }) describe('defineTool presentation (presentCall / presentResult)', () => { From d7a27b20df82be857a8c8c86ead561f9d4ac646f Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Wed, 8 Jul 2026 14:11:15 +0800 Subject: [PATCH 059/232] test: pin the no-recursive-run_code invariant; document the fold at the drain site (bot review) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Both bot criticals verified against the code and rejected as exploit paths — pinned instead of patched: The bindings loop already excludes run_code (the skip predates the finding), and the runtime host resolves forged port calls as own properties of the bindings record, so an absent binding is unreachable from a program under any mode. A new both-mode test pins the invariant: the record has no run_code key on any lookup path. The drain await cannot mask a run failure: `queue` is the folded tail (every link swallows its rejection), so `await queue` never rejects and the runtime's own result.error always reaches the CodeRunFailedError conversion — the existing abort test exercises exactly the queued-abandonment-plus-run-failure scenario. Stated at the drain site so the fold's purpose is explicit. --- packages/core/tools/src/code-mode.ts | 4 ++++ packages/core/tools/tests/code-mode.spec.ts | 20 ++++++++++++++++++++ 2 files changed, 24 insertions(+) diff --git a/packages/core/tools/src/code-mode.ts b/packages/core/tools/src/code-mode.ts index 904c65ef0e..970bb6e208 100644 --- a/packages/core/tools/src/code-mode.ts +++ b/packages/core/tools/src/code-mode.ts @@ -259,6 +259,10 @@ export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () => // an in-flight sub-dispatch, abandoning queued ones), then await the // queue's drain — an aborted sub-call still settles and logs its // event INSIDE the open turn; nothing can append after we return. + // `queue` is the FOLDED tail (every link swallows its rejection into + // undefined), so this await cannot itself reject — an abandoned + // queued call can never mask the runtime's own `result.error` below; + // rejections surface only on the per-call promises the program holds. runController.abort('run_code settled') await queue diff --git a/packages/core/tools/tests/code-mode.spec.ts b/packages/core/tools/tests/code-mode.spec.ts index 7fcd0890e6..7cbceb5361 100644 --- a/packages/core/tools/tests/code-mode.spec.ts +++ b/packages/core/tools/tests/code-mode.spec.ts @@ -119,6 +119,26 @@ describe('mode-aware wire contribution', () => { expect(assembly.sections.some(section => section.name === 'tools:sdk')).toBe(true) }) + it("never exposes run_code to programs, even under mode 'both' (no recursive dispatch path)", async () => { + const { ctx, runtime } = await setup({ mode: 'both' }) + registerEcho(ctx) + runtime.behavior = (request) => { + const functions = request.bindings[0]!.functions + return Promise.resolve({ + logs: [], + value: JSON.stringify({ + names: Object.keys(functions).sort(), + // Own-property AND prototype-chain reads both come back empty — + // there is no handle a program could re-enter run_code through. + runCode: String(functions[RUN_CODE_NAME]), + }), + }) + } + const result = await runCode(ctx, 'program') + expect(result.isError).toBe(false) + expect(JSON.parse((result.content[0] as { text: string }).text)).toEqual({ names: ['echo'], runCode: 'undefined' }) + }) + it('renders byte-identical SDK text across consecutive assemblies of an unchanged tool set', async () => { const { ctx, systemPrompt } = await setup({ mode: 'code' }) registerEcho(ctx) From db26ef479dfa91dc73d8254c860f57c4265cedfa Mon Sep 17 00:00:00 2001 From: kingwl Date: Wed, 8 Jul 2026 14:24:20 +0800 Subject: [PATCH 060/232] feat(guard): add the repeat-tool-guard plugin --- AGENTS.md | 5 +- docs/config-catalog.md | 24 ++ docs/event-producer-consumer.md | 6 +- docs/module-graph.md | 6 + packages/README.md | 1 + packages/guard/README.md | 9 + packages/guard/repeat-tool-guard/README.md | 36 ++ packages/guard/repeat-tool-guard/package.json | 41 ++ packages/guard/repeat-tool-guard/src/index.ts | 243 ++++++++++++ .../tests/repeat-tool-guard.spec.ts | 372 ++++++++++++++++++ .../guard/repeat-tool-guard/tsconfig.json | 30 ++ pnpm-lock.yaml | 28 ++ tsconfig.base.json | 1 + tsconfig.build.json | 1 + tsconfig.json | 1 + 15 files changed, 799 insertions(+), 5 deletions(-) create mode 100644 packages/guard/README.md create mode 100644 packages/guard/repeat-tool-guard/README.md create mode 100644 packages/guard/repeat-tool-guard/package.json create mode 100644 packages/guard/repeat-tool-guard/src/index.ts create mode 100644 packages/guard/repeat-tool-guard/tests/repeat-tool-guard.spec.ts create mode 100644 packages/guard/repeat-tool-guard/tsconfig.json diff --git a/AGENTS.md b/AGENTS.md index 2cd72aff60..911b368a62 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -19,11 +19,12 @@ packages/ Harness packages at packages///, all named @deepseek-ai compact/ compaction seam + basic backend subagent/ subagent seam + spawn/fork/ACP backends + delegation tool todo/ the todo_write tool + guard/ loop-hygiene plugins hooks/ Claude Code / Codex hook bridges + shared wire-protocol library session-persistence/ persistence seam + JSONL/SQLite backends ui/ ACP bridge + app-boot glue + the stdio/ACP app bins - support/ dev/test infrastructure: invariants, llm-replay, subagent-mock - util/ zero-dependency utilities (Branded) + support/ dev/test infrastructure packages + util/ zero-dependency utilities examples/ Runnable demos: thin cordis.yml leaves over the app packages (see examples/AGENTS.md) docs/ architecture, generated catalogs, RFCs, postmortems, cookbook (see docs/AGENTS.md) scripts/ repo gates and generators diff --git a/docs/config-catalog.md b/docs/config-catalog.md index e268f63da6..18a1387baa 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -353,6 +353,30 @@ export interface Config { Source: [`packages/support/llm-replay/src/index.ts:429`](../packages/support/llm-replay/src/index.ts) +## `@deepseek-ai/dsh-repeat-tool-guard` + +```ts config-catalog +/** + * Plugin config, validated by the same-named schemastery schema plus the + * load-time checks in `apply` (misconfiguration fails loud: an empty + * `thresholds` list, a non-integer, a value below 2, or a duplicate throws at + * plugin load, never a silent fall-back). `include`/`exclude` entries are + * `*`-wildcard predicates over tool names at call time, not references to + * registry entries — a pattern matching no currently registered tool is valid + * (`exclude: [mcp_*]` must stay legal in a deployment that loads no MCP tools). + */ +export interface Config { + /** Consecutive-repeat counts that trigger a reminder (default `[3, 5, 8]`). */ + thresholds?: number[] + /** Tool-name patterns to track; empty means every tool is tracked. */ + include?: string[] + /** Tool-name patterns transparent to the chain (neither count nor reset). */ + exclude?: string[] +} +``` + +Source: [`packages/guard/repeat-tool-guard/src/index.ts:55`](../packages/guard/repeat-tool-guard/src/index.ts) + ## `@deepseek-ai/dsh-session-persistence-jsonl` Requires: `sessions` diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index c10d7caa52..1736981563 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -11,11 +11,11 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:271`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/error` | `emit` | [`packages/core/agent/src/types.ts:420`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | | `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:349`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | -| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:362`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:362`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | | `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:289`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | | `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:385`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | | `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:304`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:280`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:280`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:395`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | | `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:408`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | @@ -32,7 +32,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:38`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | | `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:44`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | | `tools/change` | `emit` | [`packages/core/tools/src/index.ts:97`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | -| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:92`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:92`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | | `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:76`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | Maintenance mode: hybrid generated: Cordis event declarations and most producer/listener edges are AST-scanned; dynamic dispatch sites are classified in `scripts/gen-doc-graphs.ts`. diff --git a/docs/module-graph.md b/docs/module-graph.md index c08b1fd171..b91d12234b 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -79,6 +79,9 @@ flowchart TD pkg_app_boot["app-boot"] pkg_stdio_agent["stdio-agent"] end + subgraph group_guard["packages/guard"] + pkg_repeat_tool_guard["repeat-tool-guard"] + end pkg_llm --> pkg_brand pkg_bash --> pkg_brand pkg_llm_deepseek --> pkg_llm @@ -157,6 +160,8 @@ flowchart TD pkg_acp --> pkg_session pkg_acp --> pkg_session_persistence pkg_acp --> pkg_tools + pkg_repeat_tool_guard --> pkg_agent + pkg_repeat_tool_guard --> pkg_tools pkg_agent_core --> pkg_agent pkg_agent_core --> pkg_agent_loop pkg_agent_core --> pkg_invariants @@ -243,6 +248,7 @@ flowchart TD | [`tool-todo`](../packages/todo/tool-todo) | `todo` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`hooks-codex`](../packages/hooks/hooks-codex) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools) | +| [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | `guard` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools) | | [`agent-core`](../packages/core/agent-core) | `core` | [`agent`](../packages/core/agent), [`agent-loop`](../packages/core/agent-loop), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tool-bash`](../packages/bash/tool-bash), [`tools`](../packages/core/tools) | | [`subagent-acp`](../packages/subagent/subagent-acp) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent) | | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | diff --git a/packages/README.md b/packages/README.md index f07e0d5a36..5a291a6012 100644 --- a/packages/README.md +++ b/packages/README.md @@ -16,6 +16,7 @@ Packages are grouped by modular role at `packages///`. The group dir | [`subagent/`](subagent/README.md) | Subagent capability family: the provider-registry seam and the model-facing delegation tool | Product — stable surface | | [`web/`](web/README.md) | Web capability family: the abstract seam, search/fetch provider impls, and the model-facing web tools | Product — stable surface | | [`todo/`](todo/README.md) | Todo/planning family: the model-facing `todo_write` tool (whole-list task tracking on the session log) | Product — stable surface | +| [`guard/`](guard/README.md) | Loop-hygiene guard family: advisory plugins that nudge the model out of unproductive patterns (repeat-tool-guard) | Product — stable surface | | [`hooks/`](hooks/README.md) | Hook bridges + the shared Claude Code / Codex wire-protocol library | Product — stable surface | | [`session-persistence/`](session-persistence/README.md) | Persistence capability family: the seam + JSONL/SQLite backends | Product — stable surface | | [`ui/`](ui/README.md) | Editor/client integration surfaces (the ACP bridge) + the app packages | Product — stable surface | diff --git a/packages/guard/README.md b/packages/guard/README.md new file mode 100644 index 0000000000..9198698b20 --- /dev/null +++ b/packages/guard/README.md @@ -0,0 +1,9 @@ +# guard/ — loop-hygiene guard family + +Behavioral guard plugins that watch the agent loop for unproductive patterns and nudge the model back on course. A single **product** package — there is no interface/implementation seam here, because a guard is a self-contained consumer of existing core seams (`tools/post-execute`, `agent/prompt-submit`, `agent/status`), not a swappable capability. + +| Package | Role | ctx key | +|---|---|---| +| `repeat-tool-guard/` | Advisory reminders when an agent loops on identical tool calls | (listens on `ctx.tools`' waterfalls) | + +Reminders travel as `additionalContext` on the `tools/post-execute` decision; the agent loop appends them as logged `context/message` events after the step's tool results (see [the tools package](../core/tools)), so everything a guard says to the model is reconstructable from the session log. diff --git a/packages/guard/repeat-tool-guard/README.md b/packages/guard/repeat-tool-guard/README.md new file mode 100644 index 0000000000..647426e382 --- /dev/null +++ b/packages/guard/repeat-tool-guard/README.md @@ -0,0 +1,36 @@ +# @deepseek-ai/dsh-repeat-tool-guard + +An advisory loop-breaker, not a model-facing tool: it never appears in the tool list, never vetoes or rewrites a call, and adds exactly one behavior — it watches each agent's stream of tool calls, counts runs of consecutive calls to the same tool with identical canonicalized arguments, and at configured run lengths injects an escalating advisory reminder telling the model to stop repeating itself, re-read the last result, and either change approach or conclude. The decision (retry differently, gather more evidence, or finish) stays entirely with the model: a legitimately repeated call is delayed by nothing and blocked by nothing. Decision record: [the repeat-tool-guard RFC](../../../docs/rfc/implemented/feature/2026-07-08-repeat-tool-guard.md). + +## Config + +```yaml +- id: repeat-tool-guard + name: '@deepseek-ai/dsh-repeat-tool-guard' + config: + thresholds: [3, 5, 8] # default; consecutive counts that trigger a reminder + include: [] # tool-name patterns to track; empty ⇒ all tools + exclude: [todo_write] # tool-name patterns transparent to the chain +``` + +`thresholds` fails loud at plugin load: an empty list, a non-integer, a value below 2, or a duplicate throws, never a silent fall-back to defaults. The list is normalized to ascending order; the FIRST threshold delivers a short generic nudge, every later threshold delivers the detailed form naming the tool, the run length, and the canonical arguments. + +`include`/`exclude` entries support `*` wildcards and are predicates over whatever tools exist at call time, not references to registry entries — a pattern matching no currently registered tool is NOT an error (`exclude: [mcp_*]` stays valid in a deployment that loads no MCP tools), unlike `toolOrder`'s referent check. + +## Chain semantics + +The chain key is `(tool name, canonical arguments)` — canonicalization is a deep key-sort plus `JSON.stringify`, so argument objects differing only in property order count as identical. A call identical to the previous tracked call increments the agent's consecutive counter; a different tracked call resets it to 1. + +- **Untracked calls are transparent to the chain.** A call excluded by `include`/`exclude` neither increments nor resets the counter, so `grep X → todo_write → grep X` still counts as two consecutive `grep X` when `todo_write` is excluded. This is what makes exclusion useful: bookkeeping tools interleaved into a loop must not launder it. +- **Denied calls count.** Detection sits on `tools/post-execute`, which also runs for calls a `tools/pre-execute` listener denied — a model hammering a denied call is exactly the loop worth breaking. +- **Calls without an agent are ignored.** A direct `ctx.tools.execute()` caller has no model to remind and no `AgentId` to key on. +- **Per-agent keying.** The tool registry is context-level and subagents interleave through the same waterfall, so chains are keyed by `AgentId`; one agent's repetition never trips another's reminder. A user prompt (`agent/prompt-submit`) resets the submitting agent's chain; agent disposal drops its state. +- **In-memory only.** A session resumed from persistence starts with a fresh chain — the guard is a heuristic nudge, not a logged invariant, later reminders are the accepted cost. + +## Reminder delivery + +Reminders ride the post-execute decision's `additionalContext` (source `{kind: 'plugin', plugin: 'repeat-tool-guard'}`), never a `content` replacement: the `tool/result` event stays the tool's own output for audit. The loop buffers the context and appends it as a `context/message` after the step's tool results, which the session renders as the tagged synthetic-user envelope — so the reminder is model-visible, source-attributed, and reconstructable from the session log with no new session event. The guard always delegates via `next()` and folds its reminder onto the downstream decision (both variants — a blocked call still gets the nudge); when a downstream listener attached its own `additionalContext`, the fold concatenates content and carries the guard's `source` (a `HookContext` holds one `MessageSource`; `source.kind` is what framing depends on). + +## Testing + +Unit suites drive a real agent loop against a mock adapter (no network) and cover the chain semantics above to per-file 100%. The snapshot tier owns the transcript surface: a scripted-replay scenario repeats a call five times and pins both reminder tiers (gentle at 3, detailed at 5) as `context/message`s in the ACP transcript. diff --git a/packages/guard/repeat-tool-guard/package.json b/packages/guard/repeat-tool-guard/package.json new file mode 100644 index 0000000000..9b085bb015 --- /dev/null +++ b/packages/guard/repeat-tool-guard/package.json @@ -0,0 +1,41 @@ +{ + "name": "@deepseek-ai/dsh-repeat-tool-guard", + "description": "Repeat-tool-call guard plugin: advisory reminders when an agent loops on identical tool calls", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "dependencies": { + "schemastery": "^3.18.0" + }, + "peerDependencies": { + "@deepseek-ai/dsh-agent": "^0.0.1", + "@deepseek-ai/dsh-tools": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "devDependencies": { + "@deepseek-ai/dsh-agent": "workspace:^", + "@deepseek-ai/dsh-agent-loop": "workspace:^", + "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-session": "workspace:^", + "@deepseek-ai/dsh-system-prompt": "workspace:^", + "@deepseek-ai/dsh-tools": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/guard/repeat-tool-guard/src/index.ts b/packages/guard/repeat-tool-guard/src/index.ts new file mode 100644 index 0000000000..e32d9efd67 --- /dev/null +++ b/packages/guard/repeat-tool-guard/src/index.ts @@ -0,0 +1,243 @@ +/** + * Repeat-tool-call guard: advisory loop-breaker for agents stuck re-issuing + * the same tool call with identical arguments. + * + * Not a model-facing tool — it registers no tool, never vetoes or rewrites a + * call, and adds exactly one behavior: watch each agent's stream of tool calls + * through the `tools/post-execute` waterfall, count runs of consecutive calls + * to the same tool with identical canonicalized arguments, and at configured + * run lengths fold an escalating advisory reminder onto the decision's + * `additionalContext`. The loop appends that context as a logged + * `context/message` after the step's tool results, so the reminder is + * model-visible, source-attributed, and reconstructable from the session log + * with no new session event. Decision record: + * docs/rfc/implemented/feature/2026-07-08-repeat-tool-guard.md. + * + * ```yaml + * - id: repeat-tool-guard + * name: '@deepseek-ai/dsh-repeat-tool-guard' + * config: + * thresholds: [3, 5, 8] # consecutive counts that trigger a reminder + * include: [] # tool-name patterns to track; empty = all tools + * exclude: [todo_write] # tool-name patterns transparent to the chain + * ``` + * + * Chain state is keyed per {@link AgentId} — the tool registry is a + * context-level singleton whose waterfalls interleave every agent's calls, so + * a shared counter would let one agent's repetition trip another's reminder. + * State is in-memory only: a session resumed from persistence starts with a + * fresh chain (the guard is a heuristic nudge, not a logged invariant). + * + * Plugin export shape: named exports, NO default. The cordis Loader's + * `unwrapExports` does `exports.default ?? exports`, so a stray default would + * collapse the module to the bare `apply` (see docs/postmortem/0001). + * + * @module @deepseek-ai/dsh-repeat-tool-guard + */ + +import type { Context } from 'cordis' +import z from 'schemastery' +import type { AgentId, HookContext, PromptDecision } from '@deepseek-ai/dsh-agent' +import type { MessageSource } from '@deepseek-ai/dsh-llm' +import type { PostToolDecision, ToolExecution } from '@deepseek-ai/dsh-tools' + +export const name = 'repeat-tool-guard' + +/** + * Plugin config, validated by the same-named schemastery schema plus the + * load-time checks in `apply` (misconfiguration fails loud: an empty + * `thresholds` list, a non-integer, a value below 2, or a duplicate throws at + * plugin load, never a silent fall-back). `include`/`exclude` entries are + * `*`-wildcard predicates over tool names at call time, not references to + * registry entries — a pattern matching no currently registered tool is valid + * (`exclude: [mcp_*]` must stay legal in a deployment that loads no MCP tools). + */ +export interface Config { + /** Consecutive-repeat counts that trigger a reminder (default `[3, 5, 8]`). */ + thresholds?: number[] + /** Tool-name patterns to track; empty means every tool is tracked. */ + include?: string[] + /** Tool-name patterns transparent to the chain (neither count nor reset). */ + exclude?: string[] +} + +export const Config: z = z.object({ + thresholds: z.array(z.number()).default([3, 5, 8]), + include: z.array(z.string()).default([]), + exclude: z.array(z.string()).default([]), +}) + +/** + * The `{kind:'plugin'}` source stamped on every reminder this guard injects — + * the label is load-bearing (an unlabeled context would render as a user + * prompt in derived history). + */ +const PLUGIN_SOURCE: MessageSource = { kind: 'plugin', plugin: 'repeat-tool-guard' } + +/** + * The gentle first-threshold reminder. Keyed to `thresholds[0]`, not a literal + * count, so a custom first threshold keeps the gentle-then-detailed escalation. + */ +const GENTLE_REMINDER = + 'You are repeating the exact same tool call with identical arguments. ' + + 'Carefully analyze the previous result before calling again: if the task is ' + + 'not complete, try a different approach or different arguments instead of ' + + 'repeating the call.' + +/** The detailed later-threshold reminder naming the tool, the run length, and the canonical arguments. */ +function detailedReminder(toolName: string, count: number, canonicalArguments: string): string { + return 'Repeated tool call detected:\n' + + `- tool: ${toolName}\n` + + `- consecutive_calls: ${count}\n` + + `- arguments: ${canonicalArguments}\n` + + 'The repeated calls are not making progress. Do not call this tool with ' + + 'these exact arguments again. Inspect the latest result and choose a ' + + 'different action, different arguments, or finish the task if enough ' + + 'evidence has been gathered.' +} + +/** + * Deep key-sort of a parsed-JSON value so two argument objects that differ + * only in property order canonicalize identically. Arguments reach the guard + * as the loop's `JSON.parse` output (or its raw-string fallback for malformed + * argument JSON), so JSON's value domain is the whole input domain — no + * bigint, cycle, or `undefined` handling exists because no input path can + * produce them. + */ +function sortJsonValue(value: unknown): unknown { + if (Array.isArray(value)) return value.map(sortJsonValue) + if (value !== null && typeof value === 'object') { + const record = value as Record + const sorted: Record = {} + for (const key of Object.keys(record).sort()) { + sorted[key] = sortJsonValue(record[key]) + } + return sorted + } + return value +} + +/** Canonical string form of a call's arguments: deep key-sort, then stringify. */ +function canonicalize(argumentsValue: unknown): string { + return JSON.stringify(sortJsonValue(argumentsValue)) +} + +/** Compile one `*`-wildcard pattern to an anchored RegExp (every other regex metacharacter is matched literally). */ +function wildcardToRegExp(pattern: string): RegExp { + const escaped = pattern.replace(/[|\\{}()[\]^$+?.]/g, String.raw`\$&`) + return new RegExp(`^${escaped.replaceAll('*', '.*')}$`) +} + +/** + * Validate `thresholds` per the fail-loud contract and return them sorted + * ascending (the escalation rule reads `thresholds[0]` as the gentle tier, so + * order is normalized here, once). + */ +function validateThresholds(values: number[]): number[] { + if (values.length === 0) { + throw new Error('repeat-tool-guard: `thresholds` must not be empty') + } + for (const value of values) { + if (!Number.isInteger(value) || value < 2) { + throw new Error(`repeat-tool-guard: invalid threshold ${value} — every threshold must be an integer >= 2`) + } + } + if (new Set(values).size !== values.length) { + throw new Error('repeat-tool-guard: `thresholds` must not contain duplicates') + } + return [...values].sort((a, b) => a - b) +} + +/** + * Concatenate the guard's reminder context with a downstream listener's + * optional one so folding drops neither. The merged block carries the guard's + * `source` — a `HookContext` holds one `MessageSource` and the seam cannot + * represent mixed provenance; the rendered `context/message` only + * distinguishes by `source.kind`, so a downstream plugin's text is still + * correctly framed as plugin context. + */ +function concatContext(ours: HookContext, theirs: HookContext | undefined): HookContext { + if (!theirs) return ours + return { content: [...ours.content, ...theirs.content], source: ours.source } +} + +/** One agent's consecutive-repeat chain: the last tracked call's identity key and its run length. */ +interface Chain { + key: string + count: number +} + +/** + * Install the guard's listeners. + * @param ctx - plugin context; listeners are scoped to it and disposed with it. + * @param config - validated {@link Config}; `thresholds` is re-checked fail-loud here. + */ +export function apply(ctx: Context, config: Config): void { + // schemastery's .default() guarantees the arrays are set after validation. + const thresholds = validateThresholds(config.thresholds as number[]) + const thresholdSet = new Set(thresholds) + const includePatterns = (config.include as string[]).map(wildcardToRegExp) + const excludePatterns = (config.exclude as string[]).map(wildcardToRegExp) + + const chains = new Map() + + /** Whether a tool participates in the chain (untracked calls are transparent: they neither count nor reset). */ + function tracked(toolName: string): boolean { + if (includePatterns.length > 0 && !includePatterns.some(pattern => pattern.test(toolName))) return false + return !excludePatterns.some(pattern => pattern.test(toolName)) + } + + /** + * Advance the calling agent's chain for one attempt and return the reminder + * to deliver, if this attempt's run length hits a configured threshold. + * Counting happens here — in post-execute — because denied calls also flow + * through this waterfall (`ToolRegistry.execute` routes a deny through the + * same pipeline), and a model hammering a denied call is exactly the loop + * worth breaking. + */ + function observe(exec: ToolExecution): HookContext | undefined { + // A direct `ctx.tools.execute()` caller has no model to remind and no id + // to key on; only agent-loop calls participate. + if (!exec.agent) return undefined + if (!tracked(exec.name)) return undefined + const canonical = canonicalize(exec.arguments) + const key = JSON.stringify([exec.name, canonical]) + const chain = chains.get(exec.agent.id) + const count = chain !== undefined && chain.key === key ? chain.count + 1 : 1 + chains.set(exec.agent.id, { key, count }) + if (!thresholdSet.has(count)) return undefined + const text = count === thresholds[0] ? GENTLE_REMINDER : detailedReminder(exec.name, count, canonical) + return { content: [{ type: 'text', text }], source: PLUGIN_SOURCE } + } + + // Observe-and-enrich, never veto: count first (state advances regardless of + // the downstream outcome), DELEGATE so a later listener can still block or + // replace, then fold the reminder onto whatever came back — additionalContext + // rides both decision variants, so a blocked call still gets the nudge. + ctx.on('tools/post-execute', async (exec, _result, next): Promise => { + const reminder = observe(exec) + const downstream = await next() + if (!reminder) return downstream + if (downstream.kind === 'block') { + return { kind: 'block', feedback: downstream.feedback, additionalContext: concatContext(reminder, downstream.additionalContext) } + } + return { + kind: 'accept', + ...downstream.content !== undefined ? { content: downstream.content } : {}, + additionalContext: concatContext(reminder, downstream.additionalContext), + } + }) + + // A user interjection changes the context; repetition across it is not a + // loop. Pure reset hook: always delegates (attaching nothing, vetoing + // nothing). + ctx.on('agent/prompt-submit', (agent, _content, _source, next): Promise => { + chains.delete(agent.id) + return next() + }) + + // Drop state when an agent goes away, bounding the map over harness lifetime. + ctx.on('agent/status', (agent, status) => { + if (status === 'disposed') chains.delete(agent.id) + }) +} diff --git a/packages/guard/repeat-tool-guard/tests/repeat-tool-guard.spec.ts b/packages/guard/repeat-tool-guard/tests/repeat-tool-guard.spec.ts new file mode 100644 index 0000000000..df59eb1019 --- /dev/null +++ b/packages/guard/repeat-tool-guard/tests/repeat-tool-guard.spec.ts @@ -0,0 +1,372 @@ +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import LlmService, { CallId } from '@deepseek-ai/dsh-llm' +import SessionStore, { type SessionEvent } from '@deepseek-ai/dsh-session' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry, { defineTool } from '@deepseek-ai/dsh-tools' +import AgentRegistry, { AgentId } from '@deepseek-ai/dsh-agent' +import AgentLoop, { type ReactLoopAgent } from '@deepseek-ai/dsh-agent-loop' +import * as RepeatToolGuard from '@deepseek-ai/dsh-repeat-tool-guard' +import type { Config } from '@deepseek-ai/dsh-repeat-tool-guard' +import { MockAdapter, textResponse, toolCallResponse } from '../../../core/agent-loop/tests/mock-adapter.ts' + +/** + * Behavior suite for the repeat-tool-call guard: chain semantics (identical / + * different-tracked / untracked-transparent / per-agent / resets), threshold + * escalation incl. the `thresholds[0]` gentle-text rule, canonicalization, + * fold-onto-downstream-decision, and fail-loud config validation — all driven + * through a real agent loop against a scripted mock adapter (no network). + */ + +/** Boot the core spine + the guard; the caller registers adapters and extra listeners. */ +async function harness(config: Config = {}): Promise { + const ctx = new Context() + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(AgentLoop, { agents: [] }) + await ctx.plugin(RepeatToolGuard, config) + ctx.tools.register(defineTool({ name: 'probe', description: 'p', parameters: {}, async execute() { return [{ type: 'text', text: 'ok' }] } })) + ctx.tools.register(defineTool({ name: 'other', description: 'o', parameters: {}, async execute() { return [{ type: 'text', text: 'ok' }] } })) + return ctx +} + +function waitForIdle(ctx: Context, agent: ReactLoopAgent): Promise { + return new Promise((resolve) => { const d = ctx.on('agent/status', (s, st) => { if (s === agent && st === 'idle') { d(); resolve() } }) }) +} + +/** Every `context/message` in the agent's log, flattened to joined text + source for terse assertions. */ +function reminders(agent: ReactLoopAgent): { text: string; source: unknown }[] { + return [...agent.session.events] + .filter((e): e is SessionEvent<'context/message'> => e.type === 'context/message') + .map(e => ({ + text: e.data.content.map(block => block.type === 'text' ? block.text : '').join('|'), + source: e.data.source, + })) +} + +const GUARD_SOURCE = { kind: 'plugin', plugin: 'repeat-tool-guard' } + +describe('threshold escalation', () => { + it('reminds gently at the first default threshold (3) and in detail at the second (5)', async () => { + const ctx = await harness() + const adapter = new MockAdapter([ + ...Array.from({ length: 5 }, (_, i) => toolCallResponse(`c${i}`, 'probe', { q: 'same' })), + textResponse('done'), + ]) + ctx.llm.registerAdapter(['mock'], adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + agent.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, agent) + + const found = reminders(agent) + expect(found).toHaveLength(2) + expect(found[0]!.text).toContain('repeating the exact same tool call') + expect(found[0]!.source).toEqual(GUARD_SOURCE) + expect(found[1]!.text).toContain('consecutive_calls: 5') + expect(found[1]!.text).toContain('- tool: probe') + expect(found[1]!.text).toContain('{"q":"same"}') + expect(found[1]!.source).toEqual(GUARD_SOURCE) + }) + + it('keys the gentle text to thresholds[0], not the literal 3', async () => { + const ctx = await harness({ thresholds: [4, 2] }) // unsorted on purpose: normalized ascending + const adapter = new MockAdapter([ + ...Array.from({ length: 4 }, (_, i) => toolCallResponse(`c${i}`, 'probe', {})), + textResponse('done'), + ]) + ctx.llm.registerAdapter(['mock'], adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + agent.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, agent) + + const found = reminders(agent) + expect(found).toHaveLength(2) + expect(found[0]!.text).toContain('repeating the exact same tool call') // gentle at 2 + expect(found[1]!.text).toContain('consecutive_calls: 4') // detailed at 4 + }) +}) + +describe('chain semantics', () => { + it('a different tracked call resets the chain', async () => { + const ctx = await harness() + const adapter = new MockAdapter([ + toolCallResponse('c1', 'probe', { q: 1 }), + toolCallResponse('c2', 'probe', { q: 1 }), + toolCallResponse('c3', 'other', {}), // tracked, different → reset + toolCallResponse('c4', 'probe', { q: 1 }), + toolCallResponse('c5', 'probe', { q: 1 }), + toolCallResponse('c6', 'probe', { q: 1 }), // 3rd consecutive AFTER the reset + textResponse('done'), + ]) + ctx.llm.registerAdapter(['mock'], adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + agent.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, agent) + + expect(reminders(agent)).toHaveLength(1) + }) + + it('excluded calls are transparent: they neither count nor reset', async () => { + const ctx = await harness({ exclude: ['other'] }) + const adapter = new MockAdapter([ + toolCallResponse('c1', 'probe', { q: 1 }), + toolCallResponse('c2', 'other', {}), // excluded → invisible to the chain + toolCallResponse('c3', 'probe', { q: 1 }), + toolCallResponse('c4', 'other', {}), + toolCallResponse('c5', 'probe', { q: 1 }), // 3rd consecutive probe + textResponse('done'), + ]) + ctx.llm.registerAdapter(['mock'], adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + agent.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, agent) + + const found = reminders(agent) + expect(found).toHaveLength(1) + expect(found[0]!.text).toContain('repeating the exact same tool call') + }) + + it('include patterns track only matching tools (wildcard star)', async () => { + const ctx = await harness({ include: ['pro*'] }) + const adapter = new MockAdapter([ + toolCallResponse('c1', 'other', {}), + toolCallResponse('c2', 'other', {}), + toolCallResponse('c3', 'other', {}), // 3 identical, but untracked + toolCallResponse('c4', 'probe', {}), + toolCallResponse('c5', 'probe', {}), + toolCallResponse('c6', 'probe', {}), // 3 identical, tracked + textResponse('done'), + ]) + ctx.llm.registerAdapter(['mock'], adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + agent.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, agent) + + const found = reminders(agent) + expect(found).toHaveLength(1) + expect(found[0]!.text).toContain('repeating the exact same tool call') + }) + + it('escapes regex metacharacters in patterns (a dot matches only a literal dot)', async () => { + const ctx = await harness({ exclude: ['pr.be'] }) // would match 'probe' as a regex; must not as a wildcard + const adapter = new MockAdapter([ + ...Array.from({ length: 3 }, (_, i) => toolCallResponse(`c${i}`, 'probe', {})), + textResponse('done'), + ]) + ctx.llm.registerAdapter(['mock'], adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + agent.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, agent) + + expect(reminders(agent)).toHaveLength(1) // probe was NOT excluded + }) + + it('canonicalization ignores property order, deeply', async () => { + const ctx = await harness() + const adapter = new MockAdapter([ + toolCallResponse('c1', 'probe', { a: 1, nested: { x: [1, 2], y: null } }), + toolCallResponse('c2', 'probe', { nested: { y: null, x: [1, 2] }, a: 1 }), + toolCallResponse('c3', 'probe', { a: 1, nested: { x: [1, 2], y: null } }), + textResponse('done'), + ]) + ctx.llm.registerAdapter(['mock'], adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + agent.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, agent) + + expect(reminders(agent)).toHaveLength(1) // all three canonicalize identically + }) + + it('keys chains per agent: one agent repeating never trips another', async () => { + const ctx = await harness() + ctx.llm.registerAdapter(['mock-a'], new MockAdapter([ + toolCallResponse('a1', 'probe', { q: 1 }), + toolCallResponse('a2', 'probe', { q: 1 }), + textResponse('done'), + ])) + ctx.llm.registerAdapter(['mock-b'], new MockAdapter([ + toolCallResponse('b1', 'probe', { q: 1 }), + toolCallResponse('b2', 'probe', { q: 1 }), + toolCallResponse('b3', 'probe', { q: 1 }), + textResponse('done'), + ])) + const agentA = ctx.agentLoop.create(AgentId('a'), { model: 'mock-a' }) + const agentB = ctx.agentLoop.create(AgentId('b'), { model: 'mock-b' }) + agentA.send([{ type: 'text', text: 'go' }]) + agentB.send([{ type: 'text', text: 'go' }]) + await Promise.all([waitForIdle(ctx, agentA), waitForIdle(ctx, agentB)]) + + expect(reminders(agentA)).toHaveLength(0) // 2 repeats < 3, despite B's 3 in the same registry + expect(reminders(agentB)).toHaveLength(1) + }) + + it('a new user prompt resets the chain', async () => { + const ctx = await harness() + const adapter = new MockAdapter([ + toolCallResponse('c1', 'probe', { q: 1 }), + toolCallResponse('c2', 'probe', { q: 1 }), + textResponse('turn one done'), + toolCallResponse('c3', 'probe', { q: 1 }), // without the reset this would be the 3rd + textResponse('turn two done'), + ]) + ctx.llm.registerAdapter(['mock'], adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + agent.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, agent) + agent.send([{ type: 'text', text: 'again' }]) + await waitForIdle(ctx, agent) + + expect(reminders(agent)).toHaveLength(0) + }) + + it('drops an agent chain on disposal', async () => { + const ctx = await harness({ thresholds: [2] }) + ctx.llm.registerAdapter(['mock'], new MockAdapter([ + toolCallResponse('c1', 'probe', { q: 1 }), + textResponse('done'), + toolCallResponse('c2', 'probe', { q: 1 }), // same id, fresh agent: count 1, not 2 + textResponse('done'), + ])) + // Loop agents are torn down by disposing the scope that created them + // (the loop.spec pattern): a child plugin fiber owns `first`. + let first!: ReactLoopAgent + const fiber = await ctx.plugin(Object.assign((inner: Context) => { + first = inner.agentLoop.create(AgentId('reused'), { model: 'mock' }) + }, { inject: ['agentLoop'] })) + first.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, first) + await fiber.dispose() + await first.done + + const second = ctx.agentLoop.create(AgentId('reused'), { model: 'mock' }) + second.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, second) + + expect(reminders(second)).toHaveLength(0) + }) + + it('counts denied calls: hammering a denied tool still draws the reminder', async () => { + const ctx = await harness({ thresholds: [2] }) + ctx.on('tools/pre-execute', async () => ({ kind: 'deny' as const, reason: 'sealed' })) + const adapter = new MockAdapter([ + toolCallResponse('c1', 'probe', { q: 1 }), + toolCallResponse('c2', 'probe', { q: 1 }), + textResponse('done'), + ]) + ctx.llm.registerAdapter(['mock'], adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + agent.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, agent) + + expect(reminders(agent)).toHaveLength(1) + }) + + it('ignores direct executes with no agent (they neither crash nor advance any chain)', async () => { + const ctx = await harness({ thresholds: [2] }) + const direct = await ctx.tools.execute({ callId: CallId('d1'), name: 'probe', arguments: { q: 1 } }) + expect(direct.isError).toBe(false) + + ctx.llm.registerAdapter(['mock'], new MockAdapter([ + toolCallResponse('c1', 'probe', { q: 1 }), // if the direct call had counted, this would be #2 + textResponse('done'), + ])) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + agent.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, agent) + + expect(reminders(agent)).toHaveLength(0) + }) +}) + +describe('fold onto the downstream decision', () => { + it('folds the reminder onto a downstream block and keeps its feedback', async () => { + const ctx = await harness({ thresholds: [2] }) + ctx.on('tools/post-execute', async () => ({ + kind: 'block' as const, + feedback: [{ type: 'text' as const, text: 'nope' }], + additionalContext: { content: [{ type: 'text' as const, text: 'downstream-ctx' }], source: { kind: 'plugin' as const, plugin: 'test' } }, + })) + const adapter = new MockAdapter([ + toolCallResponse('c1', 'probe', { q: 1 }), + toolCallResponse('c2', 'probe', { q: 1 }), + textResponse('done'), + ]) + ctx.llm.registerAdapter(['mock'], adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + agent.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, agent) + + const found = reminders(agent) + expect(found).toHaveLength(2) + // Call 1: below threshold — the downstream context passes through untouched. + expect(found[0]!.text).toBe('downstream-ctx') + expect(found[0]!.source).toEqual({ kind: 'plugin', plugin: 'test' }) + // Call 2: reminder folded in front, single merged context, the guard's source. + expect(found[1]!.text).toContain('repeating the exact same tool call') + expect(found[1]!.text).toContain('|downstream-ctx') + expect(found[1]!.source).toEqual(GUARD_SOURCE) + // The block's feedback reached the tool result unchanged. + const results = [...agent.session.events].filter((e): e is SessionEvent<'tool/result'> => e.type === 'tool/result') + expect(results.every(r => r.data.isError)).toBe(true) + expect(results[1]!.data.content).toEqual([{ type: 'text', text: 'nope' }]) + }) + + it('preserves a downstream accept content replacement while folding', async () => { + const ctx = await harness({ thresholds: [2] }) + ctx.on('tools/post-execute', async () => ({ + kind: 'accept' as const, + content: [{ type: 'text' as const, text: 'replaced' }], + })) + const adapter = new MockAdapter([ + toolCallResponse('c1', 'probe', { q: 1 }), + toolCallResponse('c2', 'probe', { q: 1 }), + textResponse('done'), + ]) + ctx.llm.registerAdapter(['mock'], adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + agent.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, agent) + + const found = reminders(agent) + expect(found).toHaveLength(1) + expect(found[0]!.text).toContain('repeating the exact same tool call') + const results = [...agent.session.events].filter((e): e is SessionEvent<'tool/result'> => e.type === 'tool/result') + expect(results[1]!.data.content).toEqual([{ type: 'text', text: 'replaced' }]) + }) +}) + +describe('config validation fails loud', () => { + async function spine(): Promise { + const ctx = new Context() + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(AgentLoop, { agents: [] }) + return ctx + } + + it('rejects an empty thresholds list', async () => { + const ctx = await spine() + await expect(ctx.plugin(RepeatToolGuard, { thresholds: [] })).rejects.toThrow(/must not be empty/) + }) + + it('rejects a threshold below 2', async () => { + const ctx = await spine() + await expect(ctx.plugin(RepeatToolGuard, { thresholds: [1, 3] })).rejects.toThrow(/integer >= 2/) + }) + + it('rejects a non-integer threshold', async () => { + const ctx = await spine() + await expect(ctx.plugin(RepeatToolGuard, { thresholds: [2.5] })).rejects.toThrow(/integer >= 2/) + }) + + it('rejects duplicate thresholds', async () => { + const ctx = await spine() + await expect(ctx.plugin(RepeatToolGuard, { thresholds: [3, 3] })).rejects.toThrow(/duplicates/) + }) +}) diff --git a/packages/guard/repeat-tool-guard/tsconfig.json b/packages/guard/repeat-tool-guard/tsconfig.json new file mode 100644 index 0000000000..66439bcd5f --- /dev/null +++ b/packages/guard/repeat-tool-guard/tsconfig.json @@ -0,0 +1,30 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../../vendor/schemastery" + }, + { + "path": "../../core/tools" + }, + { + "path": "../../core/agent" + }, + { + "path": "../../llm/llm" + } + ] +} diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 9856e99e95..23de7eac3d 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -381,6 +381,34 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/guard/repeat-tool-guard: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../../core/agent + '@deepseek-ai/dsh-agent-loop': + specifier: workspace:^ + version: link:../../core/agent-loop + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + '@deepseek-ai/dsh-session': + specifier: workspace:^ + version: link:../../core/session + '@deepseek-ai/dsh-system-prompt': + specifier: workspace:^ + version: link:../../core/system-prompt + '@deepseek-ai/dsh-tools': + specifier: workspace:^ + version: link:../../core/tools + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/hooks/hook-protocol: devDependencies: '@deepseek-ai/dsh-bash': diff --git a/tsconfig.base.json b/tsconfig.base.json index 40e4dbe728..152a0064ac 100644 --- a/tsconfig.base.json +++ b/tsconfig.base.json @@ -45,6 +45,7 @@ "./packages/bash/*/src", "./packages/fs/*/src", "./packages/compact/*/src", + "./packages/guard/*/src", "./packages/subagent/*/src", "./packages/web/*/src", "./packages/todo/*/src", diff --git a/tsconfig.build.json b/tsconfig.build.json index 96d87c01e9..6bf35060a0 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -53,6 +53,7 @@ { "path": "./packages/subagent/subagent-fork" }, { "path": "./packages/subagent/subagent-acp" }, { "path": "./packages/todo/tool-todo" }, + { "path": "./packages/guard/repeat-tool-guard" }, { "path": "./packages/hooks/hook-protocol" }, { "path": "./packages/hooks/hooks-claude" }, { "path": "./packages/hooks/hooks-codex" } diff --git a/tsconfig.json b/tsconfig.json index ff737baf04..5a0c19acb9 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -64,6 +64,7 @@ { "path": "./packages/subagent/subagent-fork" }, { "path": "./packages/subagent/subagent-acp" }, { "path": "./packages/todo/tool-todo" }, + { "path": "./packages/guard/repeat-tool-guard" }, { "path": "./packages/hooks/hook-protocol" }, { "path": "./packages/hooks/hooks-claude" }, { "path": "./packages/hooks/hooks-codex" } From 93d5e4c5607db8b53ad033ee46b4ecc2dcabd729 Mon Sep 17 00:00:00 2001 From: kingwl Date: Wed, 8 Jul 2026 14:24:20 +0800 Subject: [PATCH 061/232] test(acp-snapshot): replace the authored-implies-override guard with an explicit overridden flag --- .../testing/2026-06-19-acp-snapshot-tests.md | 2 +- packages/support/acp-snapshot/src/suite.ts | 33 ++++++++++++------- .../support/acp-snapshot/tests/suite.spec.ts | 4 +-- 3 files changed, 25 insertions(+), 14 deletions(-) diff --git a/docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md b/docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md index 6e73d5d333..ae5ea96f83 100644 --- a/docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md +++ b/docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md @@ -68,7 +68,7 @@ The replay plugin lives in its own package, `@deepseek-ai/dsh-llm-replay` (`pack ### Two subcommands, replay in the default gate -`pnpm run test:snapshot` runs replay (keyless) and is composed into the default `pnpm run test` gate so every PR gets the regression check (the main `vitest.config.ts` include stays narrow; the gate is `test && test:snapshot`). `pnpm run test:snapshot:record` requires `DEEPSEEK_API_KEY` (loaded from repo `.env` first), hits the real API, harvests the produced `session.jsonl` (the replay source AND the expected-log artifact), and `--update`s the stdout golden in one pass. Both forward a scenario filter. A missing fixture in replay **fails loud** with a "record first" message rather than self-skipping (the e2e self-skip rule is a CI-secret accommodation, not appropriate here — a committed-fixture test that silently vanishes is a coverage hole). A no-model scenario's `session.jsonl` simply has no `assistant/chunk` events (empty derived script); fail-loud still applies if a model call happens with no entry. An orphan-fixture guard test fails on a golden/fixture not referenced by any scenario (Vitest does not prune orphaned raw goldens), and a per-kind required-fixture guard asserts each scenario ships exactly the files its kind needs (`input.json` + `stdout.golden.jsonl` + `session.jsonl` for ALL scenarios — the harness passes `/session.jsonl` to `llm-replay` unconditionally, so even a no-model scenario needs its header-only fixture or `loadReplayScript()` fails; `replay.override.json` additionally for authored model scenarios). +`pnpm run test:snapshot` runs replay (keyless) and is composed into the default `pnpm run test` gate so every PR gets the regression check (the main `vitest.config.ts` include stays narrow; the gate is `test && test:snapshot`). `pnpm run test:snapshot:record` requires `DEEPSEEK_API_KEY` (loaded from repo `.env` first), hits the real API, harvests the produced `session.jsonl` (the replay source AND the expected-log artifact), and `--update`s the stdout golden in one pass. Both forward a scenario filter. A missing fixture in replay **fails loud** with a "record first" message rather than self-skipping (the e2e self-skip rule is a CI-secret accommodation, not appropriate here — a committed-fixture test that silently vanishes is a coverage hole). A no-model scenario's `session.jsonl` simply has no `assistant/chunk` events (empty derived script); fail-loud still applies if a model call happens with no entry. An orphan-fixture guard test fails on a golden/fixture not referenced by any scenario (Vitest does not prune orphaned raw goldens), and a per-kind required-fixture guard asserts each scenario ships exactly the files its kind needs (`input.json` + `stdout.golden.jsonl` + `session.jsonl` for ALL scenarios — the harness passes `/session.jsonl` to `llm-replay` unconditionally, so even a no-model scenario needs its header-only fixture or `loadReplayScript()` fails; `replay.override.json` exactly for the scenarios whose table entry sets `overridden` — required with the flag, forbidden without it, because the harness forwards the sidecar purely on file existence and an unregistered stray would silently replace the derived script). ## Alternatives considered diff --git a/packages/support/acp-snapshot/src/suite.ts b/packages/support/acp-snapshot/src/suite.ts index 14a4df54da..9718fc7d5e 100644 --- a/packages/support/acp-snapshot/src/suite.ts +++ b/packages/support/acp-snapshot/src/suite.ts @@ -52,12 +52,22 @@ export interface Scenario { /** * Whether `test:snapshot:record` regenerates this scenario's `session.jsonl` * from the LIVE API. `recorded` scenarios are model-driven and reproducible; - * `authored` scenarios (a hand-written `replay.override.json` sidecar drives - * replay — e.g. a provider error or a cancel, which the live API can't be - * coaxed into deterministically — or a deterministic hook scenario whose - * derived empty script needs no sidecar) are NEVER re-recorded. + * `authored` scenarios (fixtures hand-written or hand-harvested — e.g. a + * provider error or a cancel the live API can't be coaxed into + * deterministically, a deterministic hook scenario, or a scripted repetition + * a live model won't reproduce) are NEVER re-recorded. */ recorded: boolean + /** + * Whether replay is driven by a hand-written `replay.override.json` sidecar + * (a `ReplayEntry[]` that REPLACES the script derived from `session.jsonl`) + * — the throw/hang cases chunks cannot express. The fixture guard requires + * the sidecar exactly when this is set: the harness forwards the file purely + * on existence, so an unregistered stray sidecar would silently replace the + * derived script — the guard fails loud on either mismatch. Defaults to + * false (replay derives from the fixture's `assistant/chunk` events). + */ + overridden?: boolean /** * How many SUBAGENT child sessions this scenario records beyond the top-level * one (0 for a single-session scenario). Each child rides in a sibling fixture @@ -317,17 +327,18 @@ export function defineAcpSnapshotSuite(options: SnapshotSuiteOptions): void { // throws "fixture not found" when it is absent and no override replaces it. // A no-model scenario ships a header-only `session.jsonl` (it derives to an // empty script — no model call is made); a model scenario's fixture also - // doubles as the expected-log artifact the run is diffed against. An authored - // (non-`recorded`) model scenario additionally ships a `replay.override.json` - // sidecar for the throw/hang cases a derived script cannot express. - for (const { name, hasModelTurn, recorded, childSessions } of scenarios) { + // doubles as the expected-log artifact the run is diffed against. The + // `replay.override.json` sidecar is matched BOTH ways against the table's + // `overridden` flag: required when set, forbidden when not — the harness + // forwards the file purely on existence, so an unregistered stray sidecar + // would silently replace the derived script. + for (const { name, overridden, childSessions } of scenarios) { const dir = join(snapshotsDir, name) expect(existsSync(join(dir, 'input.json')), `${name}/input.json`).toBe(true) expect(existsSync(join(dir, 'stdout.golden.jsonl')), `${name}/stdout.golden.jsonl`).toBe(true) expect(existsSync(join(dir, 'session.jsonl')), `${name}/session.jsonl`).toBe(true) - if (hasModelTurn && !recorded) { - expect(existsSync(join(dir, 'replay.override.json')), `${name}/replay.override.json`).toBe(true) - } + expect(existsSync(join(dir, 'replay.override.json')), `${name}/replay.override.json presence must match \`overridden\``) + .toBe(overridden === true) // A nested-agent scenario ships one child fixture per recorded subagent // session (`session.1.jsonl` …), the replay source for that child session. for (const childFixture of childFixturePaths(dir, childSessions ?? 0)) { diff --git a/packages/support/acp-snapshot/tests/suite.spec.ts b/packages/support/acp-snapshot/tests/suite.spec.ts index 0bc15aeec2..e14f525b30 100644 --- a/packages/support/acp-snapshot/tests/suite.spec.ts +++ b/packages/support/acp-snapshot/tests/suite.spec.ts @@ -39,14 +39,14 @@ const REPLAY_SCENARIOS: Scenario[] = [ { name: 'plain-turn', hasModelTurn: true, recorded: true, childSessions: 1 }, { name: 'no-model', hasModelTurn: false, recorded: false }, { name: 'blocked-log', hasModelTurn: false, comparesLog: true, recorded: false }, - { name: 'authored-error', hasModelTurn: true, recorded: false }, + { name: 'authored-error', hasModelTurn: true, recorded: false, overridden: true }, ] const RECORD_SCENARIOS: Scenario[] = [ { name: 'rec-pin', hasModelTurn: true, recorded: true, pinsHeader: true }, { name: 'rec-child', hasModelTurn: true, recorded: true, childSessions: 1 }, // recorded:false in record mode → registered but skipped (never re-recorded). - { name: 'rec-skip', hasModelTurn: true, recorded: false }, + { name: 'rec-skip', hasModelTurn: true, recorded: false, overridden: true }, ] // Record mode mutates its snapshots dir, so run it on a throwaway copy — From a0e39db3b64ee6255089c6e498022132abdfdc86 Mon Sep 17 00:00:00 2001 From: kingwl Date: Wed, 8 Jul 2026 14:24:20 +0800 Subject: [PATCH 062/232] test(acp-snapshot): add the repeat-tool-guard reminder scenario --- examples/acp-agent/README.md | 2 +- examples/acp-agent/composition.md | 3 + examples/acp-agent/cordis.yml | 8 +++ examples/acp-agent/tests/acp.snapshot.ts | 9 ++- .../snapshots/repeat-tool-guard/input.json | 7 ++ .../snapshots/repeat-tool-guard/session.jsonl | 70 +++++++++++++++++++ .../repeat-tool-guard/stdout.golden.jsonl | 19 +++++ 7 files changed, 115 insertions(+), 3 deletions(-) create mode 100644 examples/acp-agent/tests/snapshots/repeat-tool-guard/input.json create mode 100644 examples/acp-agent/tests/snapshots/repeat-tool-guard/session.jsonl create mode 100644 examples/acp-agent/tests/snapshots/repeat-tool-guard/stdout.golden.jsonl diff --git a/examples/acp-agent/README.md b/examples/acp-agent/README.md index 58a5984301..a1f6e818ab 100644 --- a/examples/acp-agent/README.md +++ b/examples/acp-agent/README.md @@ -6,7 +6,7 @@ The DeepSeek Harness SDK agent demo exposed as an **Agent Client Protocol (ACP)* pnpm run demo:acp # needs DEEPSEEK_API_KEY (repo-root .env or env) ``` -This example is just a leaf `cordis.yml`: it loads the [`@deepseek-ai/dsh-acp-agent`](../../packages/ui/acp-agent) app (which bundles the [`@deepseek-ai/dsh-agent-core`](../../packages/core/agent-core) spine, JSONL session persistence, and the `@deepseek-ai/dsh-acp` bridge — with **no pre-created agents**, since ACP `session/new` creates them on demand), the swappable DeepSeek, bash, and filesystem backends, and the model-facing `read`/`write`/`edit`/`subagent`/`subagent_fork`/`todo_write` tool entries. The app package bakes in the no-stdout-logger cluster, so a leaf has no logger entry to get wrong by default — keeping stdout pure for JSON-RPC. +This example is just a leaf `cordis.yml`: it loads the [`@deepseek-ai/dsh-acp-agent`](../../packages/ui/acp-agent) app (which bundles the [`@deepseek-ai/dsh-agent-core`](../../packages/core/agent-core) spine, JSONL session persistence, and the `@deepseek-ai/dsh-acp` bridge — with **no pre-created agents**, since ACP `session/new` creates them on demand), the swappable DeepSeek, bash, and filesystem backends, the model-facing `read`/`write`/`edit`/`subagent`/`subagent_fork`/`todo_write` tool entries, and the advisory `repeat-tool-guard` loop-hygiene plugin. The app package bakes in the no-stdout-logger cluster, so a leaf has no logger entry to get wrong by default — keeping stdout pure for JSON-RPC. ## stdout is the protocol diff --git a/examples/acp-agent/composition.md b/examples/acp-agent/composition.md index 2644a2b112..7fd5e25875 100644 --- a/examples/acp-agent/composition.md +++ b/examples/acp-agent/composition.md @@ -33,6 +33,8 @@ flowchart LR cfg --> plugin_acp_tool_subagent_fork plugin_acp_tool_todo["tool-todo
@deepseek-ai/dsh-tool-todo"] cfg --> plugin_acp_tool_todo + plugin_acp_repeat_tool_guard["repeat-tool-guard
@deepseek-ai/dsh-repeat-tool-guard"] + cfg --> plugin_acp_repeat_tool_guard plugin_acp_fs_local["fs-local
@deepseek-ai/dsh-fs-local"] cfg --> plugin_acp_fs_local plugin_acp_fs_policy["fs-policy
@deepseek-ai/dsh-fs-policy"] @@ -56,6 +58,7 @@ flowchart LR | `tool-subagent` | `@deepseek-ai/dsh-tool-subagent` | | `tool-subagent-fork` | `@deepseek-ai/dsh-tool-subagent` | | `tool-todo` | `@deepseek-ai/dsh-tool-todo` | +| `repeat-tool-guard` | `@deepseek-ai/dsh-repeat-tool-guard` | | `fs-local` | `@deepseek-ai/dsh-fs-local` | | `fs-policy` | `@deepseek-ai/dsh-fs-policy` | | `tool-fs` | `@deepseek-ai/dsh-tool-fs` | diff --git a/examples/acp-agent/cordis.yml b/examples/acp-agent/cordis.yml index 83ac07ce55..af2da25b86 100644 --- a/examples/acp-agent/cordis.yml +++ b/examples/acp-agent/cordis.yml @@ -86,6 +86,14 @@ - id: tool-todo name: '@deepseek-ai/dsh-tool-todo' +# The repeat-tool-call guard: advisory reminders (injected context, never a +# block) when the model re-issues the same tool call with identical arguments; +# defaults [3, 5, 8]. Loaded here so the snapshot tier exercises the reminder +# transcript (the repeat-tool-guard scenario) — no other scenario repeats a +# call three times, so it is inert everywhere else. +- id: repeat-tool-guard + name: '@deepseek-ai/dsh-repeat-tool-guard' + # Filesystem capability stack: local provider, read-before-write/edit policy # gate, then the model-facing read/write/edit tools. Relative filesystem paths # resolve from the server launch cwd; the documented Zed setup launches this diff --git a/examples/acp-agent/tests/acp.snapshot.ts b/examples/acp-agent/tests/acp.snapshot.ts index b864189a61..647a37e9df 100644 --- a/examples/acp-agent/tests/acp.snapshot.ts +++ b/examples/acp-agent/tests/acp.snapshot.ts @@ -39,8 +39,13 @@ const SCENARIOS: Scenario[] = [ { name: 'fs-read-window', hasModelTurn: true, recorded: true }, { name: 'fs-policy-reject', hasModelTurn: true, recorded: true }, { name: 'multi-turn', hasModelTurn: true, recorded: true }, - { name: 'error-finish', hasModelTurn: true, recorded: false }, - { name: 'cancel', hasModelTurn: true, recorded: false }, + { name: 'error-finish', hasModelTurn: true, recorded: false, overridden: true }, + // Keyless, authored (like error-finish/cancel): deterministically forcing a + // LIVE model to repeat one call three times is not a stable recording, so + // the fixture scripts five identical todo_write calls and pins BOTH reminder + // tiers (gentle at 3, detailed at 5) as context/message in transcript and log. + { name: 'repeat-tool-guard', hasModelTurn: true, recorded: false }, + { name: 'cancel', hasModelTurn: true, recorded: false, overridden: true }, { name: 'subagent-spawn', hasModelTurn: true, recorded: true, childSessions: 1 }, { name: 'subagent-multi', hasModelTurn: true, recorded: true, childSessions: 2 }, { name: 'subagent-fork', hasModelTurn: true, recorded: true, childSessions: 1 }, diff --git a/examples/acp-agent/tests/snapshots/repeat-tool-guard/input.json b/examples/acp-agent/tests/snapshots/repeat-tool-guard/input.json new file mode 100644 index 0000000000..9d2203ed57 --- /dev/null +++ b/examples/acp-agent/tests/snapshots/repeat-tool-guard/input.json @@ -0,0 +1,7 @@ +{ + "steps": [ + { "op": "initialize" }, + { "op": "newSession" }, + { "op": "prompt", "text": "Write the todo list 'watch the kettle boil' five times in a row without changing it, then reply DONE." } + ] +} diff --git a/examples/acp-agent/tests/snapshots/repeat-tool-guard/session.jsonl b/examples/acp-agent/tests/snapshots/repeat-tool-guard/session.jsonl new file mode 100644 index 0000000000..7e50e71b3b --- /dev/null +++ b/examples/acp-agent/tests/snapshots/repeat-tool-guard/session.jsonl @@ -0,0 +1,70 @@ +{"type":"session","version":0,"id":"{{sessionId}}","createdAt":0,"cwd":"{{cwd}}"} +{"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"Write the todo list 'watch the kettle boil' five times in a row without changing it, then reply DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}} +{"type":"assistant/chunk","seq":4,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}} +{"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"tool-call-delta","index":0,"id":"call_1","name":"todo_write","argumentsDelta":"{\"todos\": [{\"content\": \"watch the kettle boil\", \"status\": \"in_progress\"}]}"}}} +{"type":"assistant/chunk","seq":6,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"call_1","name":"todo_write","arguments":"{\"todos\": [{\"content\": \"watch the kettle boil\", \"status\": \"in_progress\"}]}"}}}} +{"type":"assistant/chunk","seq":7,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":5}}}} +{"type":"assistant/chunk","seq":8,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}} +{"type":"assistant/message","seq":9,"time":0,"data":{"turn":1,"step":1,"content":[{"type":"tool-call","id":"call_1","name":"todo_write","arguments":"{\"todos\": [{\"content\": \"watch the kettle boil\", \"status\": \"in_progress\"}]}"}],"usage":{"inputTokens":10,"outputTokens":5}},"sourceEventSeqs":[4,5,6,7,8],"surfaceOp":"append"} +{"type":"tool/call","seq":10,"time":0,"data":{"turn":1,"step":1,"callId":"call_1","name":"todo_write","arguments":"{\"todos\": [{\"content\": \"watch the kettle boil\", \"status\": \"in_progress\"}]}"}} +{"type":"todo/write","seq":11,"time":0,"data":{"todos":[{"content":"watch the kettle boil","status":"in_progress"}]}} +{"type":"tool/result","seq":12,"time":0,"data":{"turn":1,"step":1,"callId":"call_1","content":[{"type":"text","text":"Updated todo list: 0 pending, 1 in progress, 0 completed."}],"isError":false},"sourceEventSeqs":[10],"surfaceOp":"append"} +{"type":"step/end","seq":13,"time":0,"data":{"turn":1,"step":1}} +{"type":"step/start","seq":14,"time":0,"data":{"turn":1,"step":2}} +{"type":"assistant/chunk","seq":15,"time":0,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}} +{"type":"assistant/chunk","seq":16,"time":0,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":0,"id":"call_2","name":"todo_write","argumentsDelta":"{\"todos\": [{\"content\": \"watch the kettle boil\", \"status\": \"in_progress\"}]}"}}} +{"type":"assistant/chunk","seq":17,"time":0,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"call_2","name":"todo_write","arguments":"{\"todos\": [{\"content\": \"watch the kettle boil\", \"status\": \"in_progress\"}]}"}}}} +{"type":"assistant/chunk","seq":18,"time":0,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":5}}}} +{"type":"assistant/chunk","seq":19,"time":0,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}} +{"type":"assistant/message","seq":20,"time":0,"data":{"turn":1,"step":2,"content":[{"type":"tool-call","id":"call_2","name":"todo_write","arguments":"{\"todos\": [{\"content\": \"watch the kettle boil\", \"status\": \"in_progress\"}]}"}],"usage":{"inputTokens":10,"outputTokens":5}},"sourceEventSeqs":[15,16,17,18,19],"surfaceOp":"append"} +{"type":"tool/call","seq":21,"time":0,"data":{"turn":1,"step":2,"callId":"call_2","name":"todo_write","arguments":"{\"todos\": [{\"content\": \"watch the kettle boil\", \"status\": \"in_progress\"}]}"}} +{"type":"todo/write","seq":22,"time":0,"data":{"todos":[{"content":"watch the kettle boil","status":"in_progress"}]}} +{"type":"tool/result","seq":23,"time":0,"data":{"turn":1,"step":2,"callId":"call_2","content":[{"type":"text","text":"Updated todo list: 0 pending, 1 in progress, 0 completed."}],"isError":false},"sourceEventSeqs":[21],"surfaceOp":"append"} +{"type":"step/end","seq":24,"time":0,"data":{"turn":1,"step":2}} +{"type":"step/start","seq":25,"time":0,"data":{"turn":1,"step":3}} +{"type":"assistant/chunk","seq":26,"time":0,"data":{"turn":1,"step":3,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}} +{"type":"assistant/chunk","seq":27,"time":0,"data":{"turn":1,"step":3,"chunk":{"type":"tool-call-delta","index":0,"id":"call_3","name":"todo_write","argumentsDelta":"{\"todos\": [{\"content\": \"watch the kettle boil\", \"status\": \"in_progress\"}]}"}}} +{"type":"assistant/chunk","seq":28,"time":0,"data":{"turn":1,"step":3,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"call_3","name":"todo_write","arguments":"{\"todos\": [{\"content\": \"watch the kettle boil\", \"status\": \"in_progress\"}]}"}}}} 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Do not call this tool with these exact arguments again. Inspect the latest result and choose a different action, different arguments, or finish the task if enough evidence has been gathered."}],"source":{"kind":"plugin","plugin":"repeat-tool-guard"}},"surfaceOp":"append"} +{"type":"step/end","seq":59,"time":0,"data":{"turn":1,"step":5}} +{"type":"step/start","seq":60,"time":0,"data":{"turn":1,"step":6}} +{"type":"assistant/chunk","seq":61,"time":0,"data":{"turn":1,"step":6,"chunk":{"type":"block-start","index":0,"blockType":"text"}}} +{"type":"assistant/chunk","seq":62,"time":0,"data":{"turn":1,"step":6,"chunk":{"type":"text-delta","index":0,"text":"DONE."}}} +{"type":"assistant/chunk","seq":63,"time":0,"data":{"turn":1,"step":6,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"DONE."}}}} +{"type":"assistant/chunk","seq":64,"time":0,"data":{"turn":1,"step":6,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":3}}}} +{"type":"assistant/chunk","seq":65,"time":0,"data":{"turn":1,"step":6,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":66,"time":0,"data":{"turn":1,"step":6,"content":[{"type":"text","text":"DONE."}],"usage":{"inputTokens":10,"outputTokens":3}},"sourceEventSeqs":[61,62,63,64,65],"surfaceOp":"append"} +{"type":"step/end","seq":67,"time":0,"data":{"turn":1,"step":6}} +{"type":"turn/end","seq":68,"time":0,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/repeat-tool-guard/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/repeat-tool-guard/stdout.golden.jsonl new file mode 100644 index 0000000000..a3ae2e3870 --- /dev/null +++ b/examples/acp-agent/tests/snapshots/repeat-tool-guard/stdout.golden.jsonl @@ -0,0 +1,19 @@ +{"jsonrpc":"2.0","id":1,"result":{"protocolVersion":1,"agentInfo":{"name":"deepseek-harness-acp","version":"0.0.1"},"agentCapabilities":{"loadSession":true,"promptCapabilities":{"image":false,"audio":false,"embeddedContext":false}},"authMethods":[]}} +{"jsonrpc":"2.0","id":2,"result":{"sessionId":"{{sessionId}}"}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_1","title":"Update todo list","kind":"other","status":"in_progress","rawInput":[{"content":"watch the kettle boil","status":"in_progress"}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"plan","entries":[{"content":"watch the kettle boil","priority":"medium","status":"in_progress"}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_1","status":"completed","content":[{"type":"content","content":{"type":"text","text":"Updated todo list: 0 pending, 1 in progress, 0 completed."}}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_2","title":"Update todo list","kind":"other","status":"in_progress","rawInput":[{"content":"watch the kettle boil","status":"in_progress"}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"plan","entries":[{"content":"watch the kettle boil","priority":"medium","status":"in_progress"}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_2","status":"completed","content":[{"type":"content","content":{"type":"text","text":"Updated todo list: 0 pending, 1 in progress, 0 completed."}}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_3","title":"Update todo list","kind":"other","status":"in_progress","rawInput":[{"content":"watch the kettle boil","status":"in_progress"}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"plan","entries":[{"content":"watch the kettle boil","priority":"medium","status":"in_progress"}]}}} 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+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_5","status":"completed","content":[{"type":"content","content":{"type":"text","text":"Updated todo list: 0 pending, 1 in progress, 0 completed."}}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"DONE."}}}} +{"jsonrpc":"2.0","id":3,"result":{"stopReason":"end_turn"}} From a58196307020c685765913cc9b4b04ba6ba16329 Mon Sep 17 00:00:00 2001 From: kingwl Date: Wed, 8 Jul 2026 14:24:20 +0800 Subject: [PATCH 063/232] docs(rfc): promote the repeat-tool-guard RFC to implemented --- docs/rfc/INDEX.md | 2 +- .../feature/2026-07-08-repeat-tool-guard.md | 47 ++++++++----------- 2 files changed, 21 insertions(+), 28 deletions(-) rename docs/rfc/{proposed => implemented}/feature/2026-07-08-repeat-tool-guard.md (51%) diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index 3af42ef70e..ea49c1ff3f 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -13,7 +13,6 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [Optional Code Mode — model writes TypeScript against an SDK of all tools](proposed/feature/2026-06-15-optional-code-mode.md) | 2026-06-15 | | [Pre-tool input rewrite — a consistent design](proposed/feature/2026-06-30-pre-tool-input-rewrite.md) | 2026-06-30 | | [Claude Code and Codex subagent backends (out-of-process delegation to external coding agents)](proposed/feature/2026-07-07-claude-code-and-codex-subagent-backends.md) | 2026-07-07 | -| [Repeat-tool-call guard plugin](proposed/feature/2026-07-08-repeat-tool-guard.md) | 2026-07-08 | ### Simplification @@ -63,6 +62,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [SessionStore fork API](implemented/feature/2026-06-30-session-store-fork-api.md) | 2026-06-30 | | [Subagent lifecycle enrichment — lastAssistantMessage (observe-only)](implemented/feature/2026-06-30-subagent-observe-enrich.md) | 2026-06-30 | | [Explicit model-facing tool order](implemented/feature/2026-07-06-explicit-tool-order.md) | 2026-07-06 | +| [Repeat-tool-call guard plugin](implemented/feature/2026-07-08-repeat-tool-guard.md) | 2026-07-08 | ### Simplification diff --git a/docs/rfc/proposed/feature/2026-07-08-repeat-tool-guard.md b/docs/rfc/implemented/feature/2026-07-08-repeat-tool-guard.md similarity index 51% rename from docs/rfc/proposed/feature/2026-07-08-repeat-tool-guard.md rename to docs/rfc/implemented/feature/2026-07-08-repeat-tool-guard.md index 19193ea583..e0e9c28b5c 100644 --- a/docs/rfc/proposed/feature/2026-07-08-repeat-tool-guard.md +++ b/docs/rfc/implemented/feature/2026-07-08-repeat-tool-guard.md @@ -1,20 +1,20 @@ # RFC: Repeat-tool-call guard plugin -Status: proposed +Status: implemented ## Problem A model stuck in a loop re-issues the same tool call with byte-identical arguments — re-running a failing grep, re-reading an unchanged file, polling a command that already gave its answer — and each round trip burns tokens, wall-clock, and (for paid APIs) money without adding information. The harness has nothing that notices: the loop has no step budget, no plugin tracks call repetition, and the model only escapes when it happens to vary its own behavior. The failure mode is real and cheap to detect — [pi-repeat-tool-guard](https://github.com/Kingwl/pi-repeat-tool-guard) ships exactly this as a pi coding-agent extension: count consecutive identical calls and, past a threshold, append a `` telling the model to stop repeating itself and change course. -The harness already has every seam the pi extension uses, and better ones: [the interception-seams RFC](../../implemented/feature/2026-06-30-interception-seams.md) gives `tools/post-execute` a sanctioned way to attach model-facing context to a finished call, the loop buffers and injects that context with call/result adjacency preserved, and injected context is a logged `context/message` — so a native guard satisfies the model-visible ⟺ logged rule with no new session event. What is missing is only the plugin itself. +The harness already has every seam the pi extension uses, and better ones: [the interception-seams RFC](2026-06-30-interception-seams.md) gives `tools/post-execute` a sanctioned way to attach model-facing context to a finished call, the loop buffers and injects that context with call/result adjacency preserved, and injected context is a logged `context/message` — so a native guard satisfies the model-visible ⟺ logged rule with no new session event. What was missing was only the plugin itself. -## Proposal +## Decision The guard is a loop-hygiene plugin, not a model-facing tool: it never appears in the tool list, never vetoes or rewrites a call, and adds exactly one behavior — it watches each agent's stream of tool calls, counts runs of consecutive calls to the same tool with identical canonicalized arguments, and at configured run lengths injects an escalating advisory reminder telling the model to stop repeating itself, re-read the last result, and either change approach or conclude. The purpose is to break unproductive loops within a few wasted steps instead of letting them run to the turn's natural end — while leaving the decision (retry differently, gather more evidence, or finish) entirely with the model, so a legitimately repeated call is delayed by nothing and blocked by nothing. -The shape: one new leaf plugin package, `@deepseek-ai/dsh-repeat-tool-guard` at `packages/guard/repeat-tool-guard/`, opening a `guard/` group for loop-hygiene plugins (single-package groups have precedent: [the todo-write RFC](../../implemented/feature/2026-06-29-todo-write-tool.md) shipped `todo/tool-todo`). The plugin registers three listeners via `ctx.effect()` and holds all state in plugin-local maps keyed by `AgentId` — the tool registry is a context-level singleton whose waterfalls interleave every agent's calls (subagents run on the same context), so per-agent keying is correctness, not polish. +The plugin is `@deepseek-ai/dsh-repeat-tool-guard` at `packages/guard/repeat-tool-guard/`, opening the `guard/` group for loop-hygiene plugins (single-package groups have precedent: [the todo-write RFC](2026-06-29-todo-write-tool.md) shipped `todo/tool-todo`). It registers three listeners and holds all state in plugin-local maps keyed by `AgentId` — the tool registry is a context-level singleton whose waterfalls interleave every agent's calls (subagents run on the same context), so per-agent keying is correctness, not polish. -- **`tools/post-execute` (waterfall)** — the one detection point. The listener receives `(exec, result)` together, so counting and reminder delivery need no cross-event pending map (the pi extension needs one only because its `tool_call`/`tool_result` hooks are separate events). It always delegates via `next()` and, when a threshold is hit, folds a reminder onto the downstream decision's `additionalContext` — the observe-and-enrich posture [the hooks bridges](../../implemented/feature/2026-06-30-hook-bridges.md) already use, honoring the waterfall contract. Counting happens here rather than in `tools/pre-execute` because post-execute also runs for denied calls (`ToolRegistry.execute` routes a deny through the same pipeline), and a model hammering a denied call is exactly the loop worth breaking. +- **`tools/post-execute` (waterfall)** — the one detection point. The listener receives `(exec, result)` together, so counting and reminder delivery need no cross-event pending map (the pi extension needs one only because its `tool_call`/`tool_result` hooks are separate events). It always delegates via `next()` and, when a threshold is hit, folds a reminder onto the downstream decision's `additionalContext` — the observe-and-enrich posture [the hooks bridges](2026-06-30-hook-bridges.md) already use, honoring the waterfall contract. Counting happens here rather than in `tools/pre-execute` because post-execute also runs for denied calls (`ToolRegistry.execute` routes a deny through the same pipeline), and a model hammering a denied call is exactly the loop worth breaking. - **`agent/prompt-submit` (waterfall)** — pure reset hook: delegate via `next()`, clear the submitting agent's chain. A user interjection changes the context; repetition across it is not a loop. - **`agent/status` (emit)** — on `disposed`, drop the agent's state, bounding the maps over harness lifetime. @@ -22,14 +22,14 @@ The shape: one new leaf plugin package, `@deepseek-ai/dsh-repeat-tool-guard` at The chain key is `(tool name, canonical arguments)`; a call identical to the previous tracked call increments the agent's consecutive counter, a different tracked call resets it to 1. Canonicalization is a deep key-sort plus `JSON.stringify`: `ToolExecution.arguments` is by construction the loop's `JSON.parse` output (or the raw string fallback for malformed argument JSON, which is itself a comparable value), so the pi original's bigint/circular/`undefined` handling has no inputs here and is deliberately dropped. -Two deliberate rules, both documented in the package README because they are behavior a reader would otherwise guess at: +Two deliberate rules, both documented in [the package README](../../../../packages/guard/repeat-tool-guard/README.md) because they are behavior a reader would otherwise guess at: - **Untracked calls are transparent to the chain.** A call excluded by `include`/`exclude` neither increments nor resets the counter, so `grep X → todo_write → grep X` still counts as two consecutive `grep X` when `todo_write` is excluded. This is what makes exclusion useful — bookkeeping tools interleaved into a loop must not launder it — and it is the pi extension's (undocumented) semantics, kept on purpose and written down. -- **Calls without an agent are ignored.** A direct `ctx.tools.execute()` caller (tests, future non-loop consumers) has no model to remind and no `AgentId` to key on. +- **Calls without an agent are ignored.** A direct `ctx.tools.execute()` caller (tests, non-loop consumers) has no model to remind and no `AgentId` to key on. ### Reminder delivery -Reminders ride `additionalContext` (source `{kind: 'plugin', plugin: 'repeat-tool-guard'}` — the label is load-bearing per `HookContext`), never a `content` replacement: the `tool/result` event stays the tool's own output for audit, and the loop already appends buffered context as `context/message`(s) after the step's results, which the session renders as the tagged synthetic-user envelope and derived history replays. Thresholds escalate: the first configured threshold gets a short "you are repeating yourself, analyze the previous result" nudge; each later threshold gets the detailed form naming the tool, the repeat count, and the canonical arguments, and stating that the calls made no progress. The pi original hardcodes the gentle text to the literal count 3; the guard keys it to `thresholds[0]`, fixing that bug in the port. When the downstream decision already carries `additionalContext` (a hook bridge on the same call), the guard folds content following the shared-merge precedent in `dsh-hook-protocol`. +Reminders ride `additionalContext` (source `{kind: 'plugin', plugin: 'repeat-tool-guard'}` — the label is load-bearing per `HookContext`), never a `content` replacement: the `tool/result` event stays the tool's own output for audit, and the loop appends buffered context as `context/message`(s) after the step's results, which the session renders as the tagged synthetic-user envelope and derived history replays. Thresholds escalate: the first configured threshold gets a short "you are repeating yourself, analyze the previous result" nudge; each later threshold gets the detailed form naming the tool, the repeat count, and the canonical arguments, and stating that the calls made no progress. The pi original hardcodes the gentle text to the literal count 3; the guard keys it to `thresholds[0]`, fixing that bug in the port. When the downstream decision already carries `additionalContext` (a hook bridge on the same call), the guard concatenates content under its own `source` — a `HookContext` holds one `MessageSource`, and `source.kind` is what framing depends on. ### Config @@ -44,36 +44,29 @@ Reminders ride `additionalContext` (source `{kind: 'plugin', plugin: 'repeat-too `thresholds` is validated at load and throws on an empty list, a non-integer, a value below 2, or a duplicate — misconfiguration fails loud, replacing the pi original's silent fall-back to defaults. `include`/`exclude` entries support `*` wildcards. Patterns are predicates over whatever tools exist at call time, not references to a registry entry, so an entry matching no currently registered tool is NOT an error — unlike `toolOrder`'s referent check, `exclude: [mcp_*]` must stay valid in a deployment that loads no MCP tools. -### Testing +## Testing -Coverage named at plan time, per tier: **unit** — counting/reset semantics (identical, different-tracked, untracked-transparent, prompt-submit reset, disposal cleanup, per-agent isolation), canonicalization, threshold escalation including the `thresholds[0]` gentle-text rule, config fail-loud cases, and the fold-onto-downstream-decision path, to per-file 100% like every `packages/*/*/src` file. **Snapshot** — one scripted-replay scenario where the model repeats a call to threshold and the reminder `context/message` appears in the transcript, pinning the model-visible text and its envelope (this is a transcript-surface change; the ACP snapshot suite is the tier that owns it). **e2e** — none: the plugin is provider-independent and deterministic, and forcing a live model to repeat a call three times is not a stable test; the seam contracts it relies on are already e2e-covered by their owners. +**Unit** — the suite drives a real agent loop against a scripted mock adapter (no network) and covers, at per-file 100%: counting/reset semantics (identical, different-tracked, untracked-transparent, prompt-submit reset, disposal cleanup, per-agent isolation), canonicalization (deep key-order insensitivity), threshold escalation including the `thresholds[0]` gentle-text rule, denied-call counting, no-agent transparency, wildcard escaping, config fail-loud cases, and both fold-onto-downstream paths (block and accept-with-replacement). **Snapshot** — the `repeat-tool-guard` scenario in the acp-agent example suite scripts five identical `todo_write` calls and pins both reminder tiers (gentle at the third, detailed at the fifth) as `context/message`s in the ACP transcript and the session log; the guard is loaded in the example's live tree (`cordis.yml`), inert for every other scenario (none repeats a call three times). The scenario is authored keyless (like `error-finish`/`cancel`): deterministically forcing a live model to repeat one call three times is not a stable recording. **e2e** — none: the plugin is provider-independent and deterministic, and the seam contracts it relies on are e2e-covered by their owners. ## Alternatives considered - **Append the reminder into the tool result** (`accept` with replaced `content` — the pi extension's mechanism, which patches result content because that is the only channel its API offers) — rejected: it makes the logged `tool/result` lie about what the tool returned, and `additionalContext` exists precisely as the separate sanctioned channel for post-execute commentary, with loop-level buffering that preserves call/result adjacency. - **Count in `tools/pre-execute` with a pending-reminder map** (the pi two-phase shape) — rejected: post-execute alone sees `(exec, result)` together and also fires for denied calls, so one listener with no cross-event state covers strictly more attempts with less machinery. - **Escalate to `block` at the highest threshold** — rejected for the initial scope: a blocked call punishes legitimate identical repeats (polling a long-running terminal, re-checking a file the agent expects to change), and an advisory reminder keeps the model in control. Revisit with evidence; the decision shape (`PostToolDecision`) already supports it. -- **A per-deployment external hook via the CC/Codex bridges** (a `PostToolUse` script) — rejected as the answer: it works today for one deployment, but a shipped, unit-tested, `cordis.yml`-configurable plugin is the harness-native form, without per-call subprocess cost. +- **A per-deployment external hook via the CC/Codex bridges** (a `PostToolUse` script) — rejected as the answer: it works for one deployment, but a shipped, unit-tested, `cordis.yml`-configurable plugin is the harness-native form, without per-call subprocess cost. - **A loop-level step or repetition budget in `agent-loop`** — rejected: "plugins, not loop changes"; a hard step budget is a blunter, orthogonal control that would need its own proposal. - **Fuzzy/near-identical detection** (normalized paths, similar-but-not-equal arguments) — rejected: exact match after canonicalization is cheap, deterministic, and explainable to the model; similarity thresholds invite false positives and need evidence before they earn complexity. - **Placing the package in `core/`** — rejected: core is the product spine; a behavioral guard is an optional leaf plugin, and the `todo/` precedent is a small dedicated group per plugin family. -## Acceptance criteria +## Consequences -- `packages/guard/repeat-tool-guard/` exists, registers all listeners through `ctx.effect()`, and is loadable from a `cordis.yml` with the config above; the config catalog regenerates with its entry. -- Invalid `thresholds` (empty, non-integer, `< 2`, duplicate) throw at plugin load. -- Unit suite covers the semantics list above at per-file 100%; a snapshot scenario replays a threshold-crossing repetition and pins the reminder `context/message` in the transcript on macOS and Linux. -- The reminder is reconstructable from the session log alone (it is an ordinary `context/message` with a plugin source — no new session event). -- The package README opens with the plugin's purpose — an advisory loop-breaker that is not a model-facing tool, never blocks or rewrites a call, and only injects reminders — then documents the transparency rule, the per-agent keying, and the in-memory-only state; `doc-sync` is green. +- The reminder is advisory by design: idempotent polling patterns that repeat identical calls on purpose still receive nudges past the thresholds, and the pressure valves are config (`thresholds`, `exclude`) plus reminder text that explicitly allows finishing when enough evidence has been gathered. Each trigger costs reminder tokens on the next request; thresholds bound the frequency. +- Chain state is in-memory only: a session resumed from persistence starts with a fresh chain, so a loop spanning a resume draws its reminders later than a live one — accepted, the guard is a heuristic nudge, not a logged invariant, and persisting counter state would buy little for real complexity. +- When multiple post-execute producers attach context on one call, the fold concatenates under the guard's `source`; ordering between plugins follows listener registration order. The seam cannot represent mixed provenance — a limit inherited from `HookContext`, not owned by this plugin. +- Implementing the snapshot tier surfaced a hidden assumption in the suite kit: the fixture guard equated "authored model scenario" with "override-driven". The `Scenario` table now carries an explicit `overridden` flag, and the sidecar's presence is checked BOTH ways against it (an unregistered stray sidecar would silently replace the derived script) — the suite kit is stricter than it was before this plugin existed. -## Risks +## Deferred -- **False positives on legitimately repeated calls.** Idempotent polling patterns repeat identical calls on purpose; the reminder is advisory and thresholds/`exclude` are the pressure valves, but a badly tuned deployment adds noise to the transcript. Mitigation: conservative defaults and the reminder text explicitly allowing "finish the task if enough evidence has been gathered". -- **Reminder tokens are model-visible cost.** Each trigger appends a paragraph to the next request; thresholds bound the frequency, but a pathological agent can hit 3/5/8 repeatedly across different keys. -- **State is in-memory only.** A session resumed from persistence starts with a fresh chain, so a loop spanning a resume gets its reminders later than a live one — accepted: the guard is a heuristic nudge, not a logged invariant, and persisting counter state would buy little for real complexity. -- **Multiple context producers on one call.** When a hook bridge and the guard both attach `additionalContext`, ordering follows listener registration order; the fold keeps both, but the combined envelope's readability depends on merge behavior that this RFC inherits rather than owns. - -## Open questions - -- Should compaction reset chains? A compacted history changes what the model sees, but the repetition risk usually survives compaction; the initial answer is no. -- Should subagents inherit the parent's thresholds via config only, or ever share chain state? Per-agent isolation is the proposed default; sharing looks like a smell until a concrete case appears. +- Compaction does not reset chains: a compacted history changes what the model sees, but the repetition risk usually survives compaction. +- Escalating to `block` at a high threshold is not implemented; `PostToolDecision` already supports it if evidence arrives. +- Subagent chains stay isolated per agent; no sharing mechanism exists until a concrete case appears. From 534b1dc6d063149297311dcfc45b625638e3dbb1 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Wed, 8 Jul 2026 14:37:42 +0800 Subject: [PATCH 064/232] refactor(timeout-policy): read budget from ToolDefinition, drop config The enforcer now reads ctx.tools.get(exec.name).timeoutMs instead of a free-text tool-name config map, so a mistyped name is impossible and the tools/change warn-once apparatus is gone. exec.name always resolves in the registry during dispatch, so there is no unknown-name path to warn about. --- packages/timeout/timeout-policy/README.md | 28 +-- packages/timeout/timeout-policy/src/index.ts | 119 +++------- .../tests/timeout-policy.spec.ts | 212 ++++-------------- 3 files changed, 82 insertions(+), 277 deletions(-) diff --git a/packages/timeout/timeout-policy/README.md b/packages/timeout/timeout-policy/README.md index bdf189ba7f..e637a658bf 100644 --- a/packages/timeout/timeout-policy/README.md +++ b/packages/timeout/timeout-policy/README.md @@ -1,47 +1,33 @@ # dsh-timeout-policy -Tool-call timeout policy: a single `tools/execute` around-dispatch listener that arms a per-call cooperative deadline on `exec.signal` for each configured tool and returns a structured `TOOL_TIMEOUT` result when that deadline wins. It is the reference `tools/execute` wrapper and the deployment-owned home for model-facing tool-call budgets (the timeout-library RFC's foreseen middleware). +Tool-call timeout enforcer: a single `tools/execute` around-dispatch listener that arms a per-call cooperative deadline on `exec.signal` for a tool declaring `timeoutMs` on its `ToolDefinition` and returns a structured `TOOL_TIMEOUT` result when that deadline wins. The budget is read from the tool's own declaration (`ToolDefinition.timeoutMs`, set by the owning tool plugin), so this plugin is **zero-config**. It is the reference `tools/execute` wrapper and the enforcement home for model-facing tool-call budgets (the timeout-library RFC's foreseen middleware). ## Plugin (namespace: `timeout-policy`) -A function/namespace plugin (`name` / `Config` / `apply`), not a service. It registers no tool and injects nothing — it consumes `ctx.tools`'s `tools/execute` waterfall, which the `dsh-tools` registry always provides. - -### Config - -Per-tool policy, keyed by the model-facing tool name. There is deliberately **no global default** (a global budget would silently start failing any tool that runs long once the plugin loads) and **no model-facing override** (timeout is deployment policy, not prompt semantics) in this version. +A function/namespace plugin (`name` / `inject` / `apply`), not a service. It registers no tool and takes no config — it consumes `ctx.tools`'s `tools/execute` waterfall (which the `dsh-tools` registry always provides) and reads each dispatched tool's declared `timeoutMs` from the registry (`ctx.tools.get(exec.name)`). ```yaml - id: timeout-policy name: '@deepseek-ai/dsh-timeout-policy' - config: - tools: - web_fetch: - timeoutMs: 30000 - web_search: - timeoutMs: 30000 ``` -| Key | Type | Meaning | -|---|---|---| -| `tools` | `Record` | Per-tool timeout policy; an unlisted tool gets no deadline. `timeoutMs` is required per configured tool and must be positive finite. | - -A configured tool name that never registers (a typo like `web_fech`, or a stale key) would silently apply the timeout to nothing. Because the tool set is dynamic (plugins register in `cordis.yml` order, HMR re-registers), this is not a load-time error — a real tool may register later. Instead, on every `tools/change` (and once at load) the plugin `logger.warn`s each configured name still absent from `ctx.tools`, warning each name at most once so a late registration silences it. This mirrors `dsh-tool-subagent`'s lifecycle-driven handling of a configured-but-unregistered provider name. +The per-tool budget is declared by the tool plugin (e.g. `dsh-tool-web`'s `fetchTimeoutMs`/`searchTimeoutMs` config, attached as `ToolDefinition.timeoutMs`); this plugin only enforces it, so a mistyped tool name is not possible. ### Behavior -For a **configured** tool the listener: +For a tool that **declares a `timeoutMs`** the listener: -1. Arms `deadline(exec.signal, timeoutMs, 'TOOL_TIMEOUT')` — one signal fusing the caller's abort with this plugin's timer (`@deepseek-ai/dsh-timeout`). +1. Reads the budget from the tool's own declaration in the registry (`ctx.tools.get(exec.name)?.timeoutMs`) and arms `deadline(exec.signal, timeoutMs, 'TOOL_TIMEOUT')` — one signal fusing the caller's abort with this plugin's timer (`@deepseek-ai/dsh-timeout`). 2. Swaps that derived signal onto `exec` for the downstream dispatch, then restores the caller's own signal afterward (cordis `next()` ignores passed arguments, so the wrapper mutates the shared `exec` in place; restoring keeps `tools/post-execute` seeing the caller's signal). 3. After dispatch, if `timeoutOf(d.signal, 'TOOL_TIMEOUT')` matches — this plugin's own timer fired — replaces the result with a structured `TOOL_TIMEOUT` tool result: `{ isError: true, error: { name: 'ToolTimeoutError', code: 'TOOL_TIMEOUT' }, content: 'Error: tool call timed out after ms' }`. -An **unconfigured** tool delegates untouched (no deadline). +A tool that **declares no budget** delegates untouched (no deadline). The base `next()` of `tools/execute` is the registry's dispatch-with-normalization thunk, so when the timeout signal reaches a provider that throws its own upstream-abort error, dispatch first turns it into a normal error result, and this wrapper then replaces that with `TOOL_TIMEOUT`. That ordering is why the replacement is keyed off the signal (`timeoutOf`), not off the dispatched result's shape. ### Cooperative, not a hard kill -The derived signal only **notifies**; termination stays with the tool and the capability it forwards `exec.signal` to (the `dsh-timeout` library owns no kill). **"Configured" therefore means "cooperative with `exec.signal`"**: a tool that ignores the signal will not stop on timeout. A deployment must only configure tools that forward the signal to their implementation — the shipped `web_fetch`/`web_search` (which forward through `ctx.web` to providers) are the reference. `TOOL_TIMEOUT` needs no session event for reconstructability: it is the final model-facing `tool/result`, already logged by the loop. +The derived signal only **notifies**; termination stays with the tool and the capability it forwards `exec.signal` to (the `dsh-timeout` library owns no kill). **Declaring `timeoutMs` therefore means "cooperative with `exec.signal`"**: a tool that ignores the signal will not stop on timeout. Only signal-forwarding tools should declare it — the shipped `web_fetch`/`web_search` (which forward through `ctx.web` to providers) are the reference. `TOOL_TIMEOUT` needs no session event for reconstructability: it is the final model-facing `tool/result`, already logged by the loop. ### Composing with other `tools/execute` wrappers diff --git a/packages/timeout/timeout-policy/src/index.ts b/packages/timeout/timeout-policy/src/index.ts index b57091fe91..319de676a9 100644 --- a/packages/timeout/timeout-policy/src/index.ts +++ b/packages/timeout/timeout-policy/src/index.ts @@ -1,16 +1,20 @@ /** - * `@deepseek-ai/dsh-timeout-policy`: the tool-call timeout policy plugin. It - * registers ONE `tools/execute` around-dispatch listener that, for each - * configured tool, arms a per-call deadline on `exec.signal` and returns a - * structured `TOOL_TIMEOUT` result when that deadline wins. + * `@deepseek-ai/dsh-timeout-policy`: the tool-call timeout ENFORCER. It registers + * ONE `tools/execute` around-dispatch listener that, for a tool declaring a + * `timeoutMs` on its {@link ToolDefinition}, arms a per-call deadline on + * `exec.signal` and returns a structured `TOOL_TIMEOUT` result when that deadline + * wins. The budget is DECLARED by the tool (see `ToolDefinition.timeoutMs`, set + * by the owning tool plugin from its own config); this plugin only enforces it, + * so it is zero-config and there is no tool-name map to mistype. * * This is a COOPERATIVE deadline, not a hard kill: the derived signal only - * NOTIFIES. A configured tool (and the capability it forwards `exec.signal` to) - * must honor that signal and reach quiescence — the plugin never races the tool - * promise or terminates work itself (see the timeout-library RFC's rejection of - * `Promise.race`). "Configured" therefore MEANS "cooperative with `exec.signal`": - * a tool that ignores the signal will not stop on timeout, so a deployment must - * only list tools that forward it (the shipped web tools are the reference). + * NOTIFIES. A tool that declares `timeoutMs` (and the capability it forwards + * `exec.signal` to) must honor that signal and reach quiescence — the plugin + * never races the tool promise or terminates work itself (see the timeout-library + * RFC's rejection of `Promise.race`). Declaring `timeoutMs` therefore MEANS "this + * tool is cooperative with `exec.signal`": a tool that ignores the signal will + * not stop on timeout, so only signal-forwarding tools should declare it (the + * shipped web tools are the reference). * * Ownership of the `TOOL_TIMEOUT` code is entirely here: it is both the internal * {@link deadline} code (so {@link timeoutOf} scopes the classification to THIS @@ -29,7 +33,6 @@ */ import type { Context } from 'cordis' -import z from 'schemastery' import type { CallId } from '@deepseek-ai/dsh-llm' import { deadline, timeoutOf } from '@deepseek-ai/dsh-timeout' import type { ToolExecutionResult } from '@deepseek-ai/dsh-tools' @@ -46,40 +49,9 @@ export const TOOL_TIMEOUT = 'TOOL_TIMEOUT' /** Cordis plugin name used by loader diagnostics. */ export const name = 'timeout-policy' -/** The tool registry seam this plugin wraps (`tools/execute`) and reads (`tools/change`, `get`). */ +/** The tool registry seam this plugin wraps (`tools/execute`) and reads (`get`). */ export const inject = ['tools'] -/** Per-tool timeout policy. `timeoutMs` is required and must be positive finite. */ -export interface ToolTimeoutPolicy { - /** The per-call cooperative deadline for this tool, in milliseconds. */ - timeoutMs: number -} - -/** - * Plugin config: per-tool timeout policy, keyed by the model-facing tool name. - * There is deliberately NO global default (a global budget would silently start - * failing any tool that happens to run long once the plugin loads) and NO model - * override (timeout is deployment policy, not prompt semantics) in this version. - */ -export interface Config { - /** Timeout policy per tool name; an unlisted tool gets no deadline from this plugin. */ - tools?: Record -} - -export const Config: z = z.object({ - tools: z.dict(z.object({ timeoutMs: z.number() })).default({}), -}) - -/** The shape after schemastery fills `tools` with its `{}` default. */ -type ResolvedConfig = Required - -/** A per-tool timeout must be a positive finite number (0 is not a "disable" value). */ -function assertPositiveFinite(toolName: string, value: number): void { - if (!Number.isFinite(value) || value <= 0) { - throw new Error(`timeout-policy: tools.${toolName}.timeoutMs must be a positive finite number`) - } -} - /** * The structured result substituted when this plugin's deadline wins. `content` * is the model-facing message; `error.code` is the same {@link TOOL_TIMEOUT} @@ -99,56 +71,23 @@ export function toolTimeoutResult(callId: CallId, timeoutMs: number): ToolExecut } /** - * Register the tool-call timeout policy. For a configured tool the listener arms - * a {@link deadline} on the caller's `exec.signal`, swaps it onto `exec` for the - * downstream dispatch (cordis `next()` ignores passed arguments, so a wrapper - * mutates the shared `exec` in place), restores the original signal afterward so - * `tools/post-execute` sees the caller's own signal, and replaces the result - * with {@link toolTimeoutResult} when its own timer fired. An unconfigured tool - * delegates untouched. + * Register the tool-call timeout enforcer. For a tool whose {@link ToolDefinition} + * declares `timeoutMs`, the listener arms a {@link deadline} on the caller's + * `exec.signal`, swaps it onto `exec` for the downstream dispatch (cordis + * `next()` ignores passed arguments, so a wrapper mutates the shared `exec` in + * place), restores the original signal afterward so `tools/post-execute` sees the + * caller's own signal, and replaces the result with {@link toolTimeoutResult} + * when its own timer fired. A tool that declares no budget delegates untouched. * - * A configured tool name that is never registered is almost always a typo or a - * stale config key (e.g. `web_fech` for `web_fetch`): the wrapper would then - * silently never fire for the intended tool. Since the tool set is dynamic - * (plugins register in `cordis.yml` order, and HMR re-registers), this cannot - * be a load-time hard error — a real tool may register later. Instead, mirror - * `dsh-tool-subagent`'s lifecycle-driven approach: on every `tools/change` (and - * once at apply), `logger.warn` each configured name still absent from the - * registry, warning each name at most once so a late registration silences it. + * The budget source is the tool's own declaration read from the registry + * (`ctx.tools.get(exec.name)?.timeoutMs`), NOT a plugin config map — `exec.name` + * is the tool being dispatched, so the lookup always resolves and there is no + * mistypable tool name and no unknown-name path to warn or throw about. */ -export function apply(ctx: Context, config: Config): void { - // schemastery (Config) has already filled `tools` with its {} default. - const resolved = config as ResolvedConfig - for (const [toolName, policy] of Object.entries(resolved.tools)) { - assertPositiveFinite(toolName, policy.timeoutMs) - } - - // Warn once per configured name that no registered tool matches, so a typo'd - // or stale config key is visible instead of silently applying to nothing. A - // name that later registers is dropped from `pending` before it is warned; a - // name that never registers is warned at most once (moved to `warned`), so a - // busy `tools/change` stream cannot spam the same key. - const pending = new Set(Object.keys(resolved.tools)) - const warned = new Set() - const warnUnknownToolNames = (): void => { - const nowUnknown: string[] = [] - for (const name of pending) { - if (ctx.tools.get(name) !== undefined) { pending.delete(name); continue } - if (!warned.has(name)) { warned.add(name); nowUnknown.push(name) } - } - if (nowUnknown.length > 0) { - ctx.logger.warn( - `timeout-policy: configured timeout for unregistered tool(s) ${nowUnknown.map(n => `"${n}"`).join(', ')} ` - + '— check for a typo or stale config key; the timeout applies to nothing until the tool registers.', - ) - } - } - ctx.on('tools/change', warnUnknownToolNames) - warnUnknownToolNames() - +export function apply(ctx: Context): void { ctx.on('tools/execute', async (exec, next): Promise => { - const timeoutMs = resolved.tools[exec.name]?.timeoutMs - // Unconfigured tool: no deadline, delegate unchanged. + const timeoutMs = ctx.tools.get(exec.name)?.timeoutMs + // A tool that declares no budget: no deadline, delegate unchanged. if (timeoutMs === undefined) return next() using d = deadline(exec.signal, timeoutMs, TOOL_TIMEOUT) diff --git a/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts b/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts index 967e5659ed..ef5c52030f 100644 --- a/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts +++ b/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts @@ -15,188 +15,86 @@ import ToolRegistry, { defineTool, type ToolExecution, type ToolExecutionResult, import * as timeoutPolicy from '@deepseek-ai/dsh-timeout-policy' import { TOOL_TIMEOUT, toolTimeoutResult } from '@deepseek-ai/dsh-timeout-policy' -/** Mount the registry + the timeout-policy plugin with the given per-tool config. */ -async function setup(tools: Record = {}) { +/** Mount the registry + the zero-config timeout-policy enforcer. */ +async function setup() { const ctx = new Context() await ctx.plugin(SystemPrompt) await ctx.plugin(ToolRegistry) - await ctx.plugin(timeoutPolicy, { tools }) + await ctx.plugin(timeoutPolicy) return ctx } -/** A fast tool: returns immediately, ignoring the signal. */ -const fastTool = defineTool({ - name: 'fast', - description: 'returns at once', - parameters: {}, - async execute() { return [{ type: 'text' as const, text: 'ok' }] }, -}) - /** A cooperative tool that settles ONLY when its exec.signal aborts (returns text). */ const cooperativeTool = defineTool({ - name: 'slow', - description: 'stops when aborted', - parameters: {}, + name: 'slow', description: 'stops when aborted', parameters: {}, timeoutMs: 100, execute(_args, exec): Promise<{ type: 'text'; text: string }[]> { const done = [{ type: 'text' as const, text: 'stopped cooperatively' }] if (exec.signal?.aborted) return Promise.resolve(done) - return new Promise((resolve) => { - exec.signal?.addEventListener('abort', () => { resolve(done) }) - }) + return new Promise((resolve) => { exec.signal?.addEventListener('abort', () => { resolve(done) }) }) }, }) /** A cooperative tool that THROWS its own upstream-abort error when aborted (web-provider shape). */ const abortThrowingTool = defineTool({ - name: 'aborter', - description: 'throws WEB_ABORTED when aborted', - parameters: {}, + name: 'aborter', description: 'throws WEB_ABORTED when aborted', parameters: {}, timeoutMs: 100, execute(_args, exec): Promise { if (exec.signal?.aborted) return Promise.reject(new HarnessError('web fetch aborted', 'WEB_ABORTED')) - return new Promise((_resolve, reject) => { - exec.signal?.addEventListener('abort', () => { reject(new HarnessError('web fetch aborted', 'WEB_ABORTED')) }) - }) + return new Promise((_resolve, reject) => { exec.signal?.addEventListener('abort', () => { reject(new HarnessError('web fetch aborted', 'WEB_ABORTED')) }) }) }, }) -describe('timeout-policy config validation', () => { - it('rejects a non-positive timeout at apply', async () => { - const ctx = new Context() - await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) - await expect(ctx.plugin(timeoutPolicy, { tools: { web_fetch: { timeoutMs: 0 } } })) - .rejects.toThrow('tools.web_fetch.timeoutMs must be a positive finite number') - }) - - it('rejects a non-finite timeout at apply', async () => { - const ctx = new Context() - await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) - await expect(ctx.plugin(timeoutPolicy, { tools: { web_fetch: { timeoutMs: Infinity } } })) - .rejects.toThrow('must be a positive finite number') - }) - - it('mounts with no config (empty tools default) and delegates every call', async () => { - const ctx = await setup() - ctx.tools.register(fastTool) - const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'fast', arguments: {} }) - expect(result).toEqual({ callId: CallId('c1'), content: [{ type: 'text', text: 'ok' }], isError: false }) - }) -}) - -describe('timeout-policy unknown-tool-name diagnostics', () => { - it('warns for a configured tool name that is never registered (typo/stale key)', async () => { - const ctx = new Context() - await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) - const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => undefined) - // web_fech is a typo for web_fetch, and no tool by that name is registered. - await ctx.plugin(timeoutPolicy, { tools: { web_fech: { timeoutMs: 30_000 } } }) - expect(warn).toHaveBeenCalledTimes(1) - expect(warn.mock.calls[0]?.[0]).toContain('"web_fech"') - expect(warn.mock.calls[0]?.[0]).toContain('unregistered tool') - }) - - it('does NOT warn when the configured tool is already registered at load', async () => { - const ctx = new Context() - await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) - ctx.tools.register(fastTool) - const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => undefined) - await ctx.plugin(timeoutPolicy, { tools: { fast: { timeoutMs: 30_000 } } }) - expect(warn).not.toHaveBeenCalled() - }) - - it('does NOT warn once a configured tool registers LATER (load-order safe)', async () => { - const ctx = new Context() - await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) - const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => undefined) - // Plugin loads before the tool it configures — the initial check would warn, - // so register first is the interesting case: mount with a not-yet-present - // name, then register it; the tools/change listener must clear it. - await ctx.plugin(timeoutPolicy, { tools: { late: { timeoutMs: 30_000 } } }) - expect(warn).toHaveBeenCalledTimes(1) // absent at load → warned once - warn.mockClear() - ctx.tools.register({ ...fastTool, name: 'late' }) // now it registers - // A subsequent tools/change must NOT re-warn the now-registered name. - ctx.tools.register({ ...fastTool, name: 'other' }) - expect(warn).not.toHaveBeenCalled() - }) - - it('warns at most once per unknown name across repeated tools/change', async () => { - const ctx = new Context() - await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) - const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => undefined) - await ctx.plugin(timeoutPolicy, { tools: { ghost: { timeoutMs: 30_000 } } }) - expect(warn).toHaveBeenCalledTimes(1) // apply-time check - // Each register/unregister emits tools/change; the ghost stays unknown but - // must not be warned again. - const dispose = ctx.tools.register(fastTool) - dispose() - ctx.tools.register({ ...fastTool, name: 'another' }) - expect(warn).toHaveBeenCalledTimes(1) - }) -}) - describe('timeout-policy delegation (unconfigured / fast)', () => { - it('delegates an UNCONFIGURED tool unchanged and does not touch exec.signal', async () => { - const ctx = await setup({ other: { timeoutMs: 50 } }) + it('delegates a tool with NO declared budget unchanged and does not touch exec.signal', async () => { + const ctx = await setup() let seenSignal: AbortSignal | undefined - ctx.tools.register({ ...fastTool, name: 'probe', async execute(_a, exec) { seenSignal = exec.signal; return [{ type: 'text' as const, text: 'ok' }] } }) - + ctx.tools.register(defineTool({ name: 'probe', description: 'd', parameters: {}, + async execute(_a, exec) { seenSignal = exec.signal; return [{ type: 'text' as const, text: 'ok' }] } })) const upstream = new AbortController().signal const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'probe', arguments: {}, signal: upstream }) expect(result.isError).toBe(false) - expect(seenSignal).toBe(upstream) // no deadline derived for an unconfigured tool + expect(seenSignal).toBe(upstream) }) - it('a configured tool that returns fast keeps its own result (no timeout)', async () => { - const ctx = await setup({ fast: { timeoutMs: 10_000 } }) - ctx.tools.register(fastTool) + it('a tool with a budget that returns fast keeps its own result (no timeout)', async () => { + const ctx = await setup() + ctx.tools.register(defineTool({ name: 'fast', description: 'd', parameters: {}, timeoutMs: 10_000, + async execute() { return [{ type: 'text' as const, text: 'ok' }] } })) const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'fast', arguments: {} }) expect(result).toEqual({ callId: CallId('c1'), content: [{ type: 'text', text: 'ok' }], isError: false }) }) - it('a configured tool receives the DERIVED deadline signal (not the caller signal) during dispatch', async () => { - const ctx = await setup({ probe: { timeoutMs: 10_000 } }) + it('a budgeted tool receives the DERIVED deadline signal (not the caller signal) during dispatch', async () => { + const ctx = await setup() let seenSignal: AbortSignal | undefined - ctx.tools.register({ ...fastTool, name: 'probe', async execute(_a, exec) { seenSignal = exec.signal; return [{ type: 'text' as const, text: 'ok' }] } }) - + ctx.tools.register(defineTool({ name: 'probe', description: 'd', parameters: {}, timeoutMs: 10_000, + async execute(_a, exec) { seenSignal = exec.signal; return [{ type: 'text' as const, text: 'ok' }] } })) const upstream = new AbortController().signal await ctx.tools.execute({ callId: CallId('c1'), name: 'probe', arguments: {}, signal: upstream }) expect(seenSignal).toBeDefined() - expect(seenSignal).not.toBe(upstream) // the plugin swapped in its fused deadline signal + expect(seenSignal).not.toBe(upstream) }) }) describe('timeout-policy signal restoration', () => { it('restores the caller signal for post-execute after wrapping', async () => { - const ctx = await setup({ fast: { timeoutMs: 10_000 } }) - ctx.tools.register(fastTool) + const ctx = await setup() + ctx.tools.register(defineTool({ name: 'fast', description: 'd', parameters: {}, timeoutMs: 10_000, + async execute() { return [{ type: 'text' as const, text: 'ok' }] } })) let postSignal: AbortSignal | undefined | 'unset' = 'unset' - ctx.on('tools/post-execute', async (exec, _result, next): Promise => { - postSignal = exec.signal - return next() - }) - + ctx.on('tools/post-execute', async (exec, _result, next): Promise => { postSignal = exec.signal; return next() }) const upstream = new AbortController().signal await ctx.tools.execute({ callId: CallId('c1'), name: 'fast', arguments: {}, signal: upstream }) - expect(postSignal).toBe(upstream) // restored to the caller's own signal, not the deadline + expect(postSignal).toBe(upstream) }) it('deletes exec.signal again when the caller passed none', async () => { - const ctx = await setup({ fast: { timeoutMs: 10_000 } }) - ctx.tools.register(fastTool) + const ctx = await setup() + ctx.tools.register(defineTool({ name: 'fast', description: 'd', parameters: {}, timeoutMs: 10_000, + async execute() { return [{ type: 'text' as const, text: 'ok' }] } })) let hadSignal: boolean | undefined - ctx.on('tools/post-execute', async (exec, _result, next): Promise => { - hadSignal = 'signal' in exec && exec.signal !== undefined - return next() - }) - + ctx.on('tools/post-execute', async (exec, _result, next): Promise => { hadSignal = 'signal' in exec && exec.signal !== undefined; return next() }) await ctx.tools.execute({ callId: CallId('c1'), name: 'fast', arguments: {} }) - expect(hadSignal).toBe(false) // no caller signal → exec.signal absent again after wrapping + expect(hadSignal).toBe(false) }) }) @@ -205,13 +103,11 @@ describe('timeout-policy TOOL_TIMEOUT replacement (deadline wins)', () => { afterEach(() => { vi.useRealTimers() }) it('replaces a cooperative tool result with TOOL_TIMEOUT when its own deadline fires', async () => { - const ctx = await setup({ slow: { timeoutMs: 100 } }) + const ctx = await setup() ctx.tools.register(cooperativeTool) - const pending = ctx.tools.execute({ callId: CallId('c1'), name: 'slow', arguments: {} }) - await vi.advanceTimersByTimeAsync(150) // past the 100ms deadline: the timer fires, the tool settles + await vi.advanceTimersByTimeAsync(150) const result = await pending - expect(result).toEqual({ callId: CallId('c1'), content: [{ type: 'text', text: 'Error: tool call timed out after 100ms' }], @@ -220,33 +116,25 @@ describe('timeout-policy TOOL_TIMEOUT replacement (deadline wins)', () => { }) }) - it('replaces a provider-owned abort ERROR result with TOOL_TIMEOUT (not WEB_ABORTED) when the signal was ours', async () => { - const ctx = await setup({ aborter: { timeoutMs: 100 } }) + it('replaces a provider-owned abort ERROR result with TOOL_TIMEOUT when the signal was ours', async () => { + const ctx = await setup() ctx.tools.register(abortThrowingTool) - const pending = ctx.tools.execute({ callId: CallId('c1'), name: 'aborter', arguments: {} }) await vi.advanceTimersByTimeAsync(150) const result = await pending - - // Dispatch first normalized the thrown WEB_ABORTED into an isError result; - // the plugin then replaced THAT with TOOL_TIMEOUT because its own timer won. expect(result.isError).toBe(true) expect(result.error).toEqual({ name: 'ToolTimeoutError', code: 'TOOL_TIMEOUT' }) expect(result.content[0]).toMatchObject({ text: 'Error: tool call timed out after 100ms' }) }) it('does NOT replace when the caller aborts first (upstream cancel, not our timeout)', async () => { - const ctx = await setup({ slow: { timeoutMs: 100 } }) + const ctx = await setup() ctx.tools.register(cooperativeTool) - const upstream = new AbortController() const pending = ctx.tools.execute({ callId: CallId('c1'), name: 'slow', arguments: {}, signal: upstream.signal }) - upstream.abort('user cancelled') // fires before the 100ms timer + upstream.abort('user cancelled') await vi.advanceTimersByTimeAsync(0) const result = await pending - - // Our timer never fired, so timeoutOf(code) is undefined: the tool's own - // cooperative result stands, not a TOOL_TIMEOUT. expect(result.isError).toBe(false) expect(result.content[0]).toMatchObject({ text: 'stopped cooperatively' }) }) @@ -273,46 +161,38 @@ describe('timeout-policy disposal (HMR safety)', () => { await ctx.plugin(SystemPrompt) await ctx.plugin(ToolRegistry) let seenSignal: AbortSignal | undefined - ctx.tools.register({ ...fastTool, name: 'probe', async execute(_a, exec) { seenSignal = exec.signal; return [{ type: 'text' as const, text: 'ok' }] } }) - - // Mount the policy on its OWN fiber so disposing it removes only the wrapper. - const fiber = await ctx.plugin(timeoutPolicy, { tools: { probe: { timeoutMs: 10_000 } } }) + ctx.tools.register(defineTool({ name: 'probe', description: 'd', parameters: {}, timeoutMs: 10_000, + async execute(_a, exec) { seenSignal = exec.signal; return [{ type: 'text' as const, text: 'ok' }] } })) + const fiber = await ctx.plugin(timeoutPolicy) const upstream = new AbortController().signal await ctx.tools.execute({ callId: CallId('c1'), name: 'probe', arguments: {}, signal: upstream }) - expect(seenSignal).not.toBe(upstream) // wrapper live: dispatch saw the derived deadline signal - + expect(seenSignal).not.toBe(upstream) await fiber.dispose() - // Listener gone: the tool now receives the caller's own signal unwrapped. A - // leaked stale wrapper would still derive a deadline and fail this. await ctx.tools.execute({ callId: CallId('c2'), name: 'probe', arguments: {}, signal: upstream }) expect(seenSignal).toBe(upstream) }) }) describe('dsh-timeout-policy real-load-path guard', () => { - it('has no default export and keeps name/inject/Config through unwrapExports', () => { + it('has no default export and keeps name/inject through unwrapExports', () => { expect('default' in timeoutPolicy).toBe(false) - const loader = Object.create(Loader.prototype) as Loader const unwrapped = loader.unwrapExports(timeoutPolicy) as Record expect(unwrapped).toBe(timeoutPolicy) expect(unwrapped.name).toBe('timeout-policy') expect(unwrapped.inject).toEqual(['tools']) expect(typeof unwrapped.apply).toBe('function') - expect(unwrapped.Config).toBeDefined() }) - it('boots over ctx.tools through the unwrapped module and wraps a configured tool', async () => { + it('boots over ctx.tools through the unwrapped module and wraps a budgeted tool', async () => { const ctx = new Context() await ctx.plugin(SystemPrompt) await ctx.plugin(ToolRegistry) - ctx.tools.register(fastTool) - + ctx.tools.register(defineTool({ name: 'fast', description: 'd', parameters: {}, timeoutMs: 5_000, + async execute() { return [{ type: 'text' as const, text: 'ok' }] } })) const loader = Object.create(Loader.prototype) as Loader const unwrapped = loader.unwrapExports(timeoutPolicy) as Parameters[0] - const fiber = await ctx.plugin(unwrapped, { tools: { fast: { timeoutMs: 5_000 } } }) - // A configured fast tool still succeeds (deadline never fires); this proves - // the wrapper is live through the real Loader path. + const fiber = await ctx.plugin(unwrapped) const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'fast', arguments: {} } satisfies ToolExecution) expect(result.isError).toBe(false) await fiber.dispose() From e491759f308e88d3c82bbd67e5fa96a10bf35688 Mon Sep 17 00:00:00 2001 From: kingwl Date: Wed, 8 Jul 2026 14:40:08 +0800 Subject: [PATCH 065/232] fix review finding: cap the detailed reminder's argument payload --- docs/config-catalog.md | 8 +++++ .../feature/2026-07-08-repeat-tool-guard.md | 9 +++--- packages/guard/repeat-tool-guard/README.md | 9 +++--- packages/guard/repeat-tool-guard/src/index.ts | 29 +++++++++++++++++-- .../tests/repeat-tool-guard.spec.ts | 29 +++++++++++++++++++ 5 files changed, 74 insertions(+), 10 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 18a1387baa..275c35ff85 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -372,6 +372,14 @@ export interface Config { include?: string[] /** Tool-name patterns transparent to the chain (neither count nor reset). */ exclude?: string[] + /** + * Maximum characters of canonical arguments quoted in the DETAILED reminder + * (default 500). Large payloads (a `write` body, a long command) would + * otherwise ride into the next request unbounded — precisely in a loop + * scenario; the cap bounds the reminder, never the detection (the chain key + * always compares the FULL canonical string). + */ + argumentsPreviewChars?: number } ``` diff --git a/docs/rfc/implemented/feature/2026-07-08-repeat-tool-guard.md b/docs/rfc/implemented/feature/2026-07-08-repeat-tool-guard.md index e0e9c28b5c..9d0446dcad 100644 --- a/docs/rfc/implemented/feature/2026-07-08-repeat-tool-guard.md +++ b/docs/rfc/implemented/feature/2026-07-08-repeat-tool-guard.md @@ -29,7 +29,7 @@ Two deliberate rules, both documented in [the package README](../../../../packag ### Reminder delivery -Reminders ride `additionalContext` (source `{kind: 'plugin', plugin: 'repeat-tool-guard'}` — the label is load-bearing per `HookContext`), never a `content` replacement: the `tool/result` event stays the tool's own output for audit, and the loop appends buffered context as `context/message`(s) after the step's results, which the session renders as the tagged synthetic-user envelope and derived history replays. Thresholds escalate: the first configured threshold gets a short "you are repeating yourself, analyze the previous result" nudge; each later threshold gets the detailed form naming the tool, the repeat count, and the canonical arguments, and stating that the calls made no progress. The pi original hardcodes the gentle text to the literal count 3; the guard keys it to `thresholds[0]`, fixing that bug in the port. When the downstream decision already carries `additionalContext` (a hook bridge on the same call), the guard concatenates content under its own `source` — a `HookContext` holds one `MessageSource`, and `source.kind` is what framing depends on. +Reminders ride `additionalContext` (source `{kind: 'plugin', plugin: 'repeat-tool-guard'}` — the label is load-bearing per `HookContext`), never a `content` replacement: the `tool/result` event stays the tool's own output for audit, and the loop appends buffered context as `context/message`(s) after the step's results, which the session renders as the tagged synthetic-user envelope and derived history replays. Thresholds escalate: the first configured threshold gets a short "you are repeating yourself, analyze the previous result" nudge; each later threshold gets the detailed form naming the tool, the repeat count, and the canonical arguments (head-truncated at `argumentsPreviewChars`, default 500 — a looping `write`-sized payload must not ride into the next request unbounded; the chain key always compares the full canonical string), and stating that the calls made no progress. The pi original hardcodes the gentle text to the literal count 3; the guard keys it to `thresholds[0]`, fixing that bug in the port. When the downstream decision already carries `additionalContext` (a hook bridge on the same call), the guard concatenates content under its own `source` — a `HookContext` holds one `MessageSource`, and `source.kind` is what framing depends on. ### Config @@ -37,9 +37,10 @@ Reminders ride `additionalContext` (source `{kind: 'plugin', plugin: 'repeat-too - id: repeat-tool-guard name: '@deepseek-ai/dsh-repeat-tool-guard' config: - thresholds: [3, 5, 8] # default; consecutive counts that trigger a reminder - include: [] # tool-name patterns to track; empty ⇒ all tools - exclude: [todo_write] # tool-name patterns transparent to the chain + thresholds: [3, 5, 8] # default; consecutive counts that trigger a reminder + include: [] # tool-name patterns to track; empty ⇒ all tools + exclude: [todo_write] # tool-name patterns transparent to the chain + argumentsPreviewChars: 500 # default; cap on arguments quoted in the detailed reminder ``` `thresholds` is validated at load and throws on an empty list, a non-integer, a value below 2, or a duplicate — misconfiguration fails loud, replacing the pi original's silent fall-back to defaults. `include`/`exclude` entries support `*` wildcards. Patterns are predicates over whatever tools exist at call time, not references to a registry entry, so an entry matching no currently registered tool is NOT an error — unlike `toolOrder`'s referent check, `exclude: [mcp_*]` must stay valid in a deployment that loads no MCP tools. diff --git a/packages/guard/repeat-tool-guard/README.md b/packages/guard/repeat-tool-guard/README.md index 647426e382..dc385bc033 100644 --- a/packages/guard/repeat-tool-guard/README.md +++ b/packages/guard/repeat-tool-guard/README.md @@ -8,12 +8,13 @@ An advisory loop-breaker, not a model-facing tool: it never appears in the tool - id: repeat-tool-guard name: '@deepseek-ai/dsh-repeat-tool-guard' config: - thresholds: [3, 5, 8] # default; consecutive counts that trigger a reminder - include: [] # tool-name patterns to track; empty ⇒ all tools - exclude: [todo_write] # tool-name patterns transparent to the chain + thresholds: [3, 5, 8] # default; consecutive counts that trigger a reminder + include: [] # tool-name patterns to track; empty ⇒ all tools + exclude: [todo_write] # tool-name patterns transparent to the chain + argumentsPreviewChars: 500 # default; cap on arguments quoted in the detailed reminder ``` -`thresholds` fails loud at plugin load: an empty list, a non-integer, a value below 2, or a duplicate throws, never a silent fall-back to defaults. The list is normalized to ascending order; the FIRST threshold delivers a short generic nudge, every later threshold delivers the detailed form naming the tool, the run length, and the canonical arguments. +`thresholds` fails loud at plugin load: an empty list, a non-integer, a value below 2, or a duplicate throws, never a silent fall-back to defaults; `argumentsPreviewChars` equally rejects anything but an integer >= 1. The list is normalized to ascending order; the FIRST threshold delivers a short generic nudge, every later threshold delivers the detailed form naming the tool, the run length, and the canonical arguments — head-truncated at `argumentsPreviewChars` with an omitted-count marker, so a looping `write`/`edit` payload cannot ride into the next request unbounded (the chain key always compares the FULL canonical string; the cap bounds the reminder, never the detection). `include`/`exclude` entries support `*` wildcards and are predicates over whatever tools exist at call time, not references to registry entries — a pattern matching no currently registered tool is NOT an error (`exclude: [mcp_*]` stays valid in a deployment that loads no MCP tools), unlike `toolOrder`'s referent check. diff --git a/packages/guard/repeat-tool-guard/src/index.ts b/packages/guard/repeat-tool-guard/src/index.ts index e32d9efd67..919d0541ba 100644 --- a/packages/guard/repeat-tool-guard/src/index.ts +++ b/packages/guard/repeat-tool-guard/src/index.ts @@ -59,12 +59,21 @@ export interface Config { include?: string[] /** Tool-name patterns transparent to the chain (neither count nor reset). */ exclude?: string[] + /** + * Maximum characters of canonical arguments quoted in the DETAILED reminder + * (default 500). Large payloads (a `write` body, a long command) would + * otherwise ride into the next request unbounded — precisely in a loop + * scenario; the cap bounds the reminder, never the detection (the chain key + * always compares the FULL canonical string). + */ + argumentsPreviewChars?: number } export const Config: z = z.object({ thresholds: z.array(z.number()).default([3, 5, 8]), include: z.array(z.string()).default([]), exclude: z.array(z.string()).default([]), + argumentsPreviewChars: z.number().default(500), }) /** @@ -128,6 +137,16 @@ function wildcardToRegExp(pattern: string): RegExp { return new RegExp(`^${escaped.replaceAll('*', '.*')}$`) } +/** + * Head-truncate the canonical arguments for quoting in the detailed reminder, + * marking how much was omitted. Bounds only the model-visible text — the + * chain key always uses the full canonical string. + */ +function previewArguments(canonical: string, cap: number): string { + if (canonical.length <= cap) return canonical + return `${canonical.slice(0, cap)}… (+${canonical.length - cap} more chars)` +} + /** * Validate `thresholds` per the fail-loud contract and return them sorted * ascending (the escalation rule reads `thresholds[0]` as the gentle tier, so @@ -173,11 +192,15 @@ interface Chain { * @param config - validated {@link Config}; `thresholds` is re-checked fail-loud here. */ export function apply(ctx: Context, config: Config): void { - // schemastery's .default() guarantees the arrays are set after validation. + // schemastery's .default() guarantees the fields are set after validation. const thresholds = validateThresholds(config.thresholds as number[]) const thresholdSet = new Set(thresholds) const includePatterns = (config.include as string[]).map(wildcardToRegExp) const excludePatterns = (config.exclude as string[]).map(wildcardToRegExp) + const argumentsPreviewChars = config.argumentsPreviewChars as number + if (!Number.isInteger(argumentsPreviewChars) || argumentsPreviewChars < 1) { + throw new Error(`repeat-tool-guard: invalid argumentsPreviewChars ${argumentsPreviewChars} — must be an integer >= 1`) + } const chains = new Map() @@ -206,7 +229,9 @@ export function apply(ctx: Context, config: Config): void { const count = chain !== undefined && chain.key === key ? chain.count + 1 : 1 chains.set(exec.agent.id, { key, count }) if (!thresholdSet.has(count)) return undefined - const text = count === thresholds[0] ? GENTLE_REMINDER : detailedReminder(exec.name, count, canonical) + const text = count === thresholds[0] + ? GENTLE_REMINDER + : detailedReminder(exec.name, count, previewArguments(canonical, argumentsPreviewChars)) return { content: [{ type: 'text', text }], source: PLUGIN_SOURCE } } diff --git a/packages/guard/repeat-tool-guard/tests/repeat-tool-guard.spec.ts b/packages/guard/repeat-tool-guard/tests/repeat-tool-guard.spec.ts index df59eb1019..565f1076b5 100644 --- a/packages/guard/repeat-tool-guard/tests/repeat-tool-guard.spec.ts +++ b/packages/guard/repeat-tool-guard/tests/repeat-tool-guard.spec.ts @@ -90,6 +90,28 @@ describe('threshold escalation', () => { }) describe('chain semantics', () => { + it('caps the detailed reminder arguments at argumentsPreviewChars (detection still keys on the full string)', async () => { + const ctx = await harness({ thresholds: [2, 3], argumentsPreviewChars: 24 }) + const bigPayload = 'x'.repeat(400) + const adapter = new MockAdapter([ + toolCallResponse('c1', 'probe', { body: bigPayload }), + toolCallResponse('c2', 'probe', { body: bigPayload }), + toolCallResponse('c3', 'probe', { body: bigPayload }), + textResponse('done'), + ]) + ctx.llm.registerAdapter(['mock'], adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + agent.send([{ type: 'text', text: 'go' }]) + await waitForIdle(ctx, agent) + + const found = reminders(agent) + expect(found).toHaveLength(2) // gentle at 2, detailed at 3 — full-key matching survived the cap + const detailed = found[1]!.text + expect(detailed).toContain('- arguments: {"body":"xxxxxxxxxxxxxx') // 24-char head + expect(detailed).toContain('… (+387 more chars)') + expect(detailed).not.toContain(bigPayload) + }) + it('a different tracked call resets the chain', async () => { const ctx = await harness() const adapter = new MockAdapter([ @@ -369,4 +391,11 @@ describe('config validation fails loud', () => { const ctx = await spine() await expect(ctx.plugin(RepeatToolGuard, { thresholds: [3, 3] })).rejects.toThrow(/duplicates/) }) + + it('rejects a non-positive or fractional argumentsPreviewChars', async () => { + const ctx = await spine() + await expect(ctx.plugin(RepeatToolGuard, { argumentsPreviewChars: 0 })).rejects.toThrow(/argumentsPreviewChars/) + const ctx2 = await spine() + await expect(ctx2.plugin(RepeatToolGuard, { argumentsPreviewChars: 12.5 })).rejects.toThrow(/argumentsPreviewChars/) + }) }) From 7a822ee4025a1084366fde49c23f93dc50d2166f Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Wed, 8 Jul 2026 14:40:14 +0800 Subject: [PATCH 066/232] feat(tool-web): declare web tool timeout budgets via config fetchTimeoutMs/searchTimeoutMs (default 30000) resolve to each tool's ToolDefinition.timeoutMs, moving the budget's declaration home onto the owning tool plugin and preserving per-tool deployment override without a mistypable central tool-name map. --- packages/web/tool-web/README.md | 6 +++- packages/web/tool-web/src/fetch.ts | 17 +++++++---- packages/web/tool-web/src/index.ts | 22 ++++++++++++--- packages/web/tool-web/src/search.ts | 5 +++- .../web/tool-web/tests/integration.spec.ts | 13 +++++---- packages/web/tool-web/tests/tool-web.spec.ts | 28 +++++++++++++++++++ 6 files changed, 74 insertions(+), 17 deletions(-) diff --git a/packages/web/tool-web/README.md b/packages/web/tool-web/README.md index e99eda5564..ab1326a21e 100644 --- a/packages/web/tool-web/README.md +++ b/packages/web/tool-web/README.md @@ -1,6 +1,6 @@ # @deepseek-ai/dsh-tool-web -The model-facing web tool suite — `web_search` and `web_fetch` — over the [web capability seam](../web/README.md) (`ctx.web`). It owns model-facing concerns only: tool names, JSON schemas, snake_case argument names, prompt sections, the result-count bound, result formatting, HTML→markdown presentation, and `presentCall`. All web access goes through `ctx.web`; this package never imports a concrete provider. Neither tool exposes a model-facing timeout — the tool-call budget is deployment policy owned by [`@deepseek-ai/dsh-timeout-policy`](../../timeout/timeout-policy/README.md) (a `tools/execute` wrapper); each tool just forwards `exec.signal` to the seam. +The model-facing web tool suite — `web_search` and `web_fetch` — over the [web capability seam](../web/README.md) (`ctx.web`). It owns model-facing concerns only: tool names, JSON schemas, snake_case argument names, prompt sections, the result-count bound, result formatting, HTML→markdown presentation, and `presentCall`. All web access goes through `ctx.web`; this package never imports a concrete provider. Neither tool exposes a model-facing timeout — each tool's cooperative tool-call budget is declared here via config (`fetchTimeoutMs`/`searchTimeoutMs`, attached as `ToolDefinition.timeoutMs`) and enforced by [`@deepseek-ai/dsh-timeout-policy`](../../timeout/timeout-policy/README.md) (a `tools/execute` wrapper); each tool just forwards `exec.signal` to the seam. Each tool is registered independently; a product that wants only one disables the other via config (`{ search: false }` / `{ fetch: false }`). @@ -18,6 +18,10 @@ Each tool is registered independently; a product that wants only one disables th | `search` | `true` | Register `web_search`. | | `fetch` | `true` | Register `web_fetch`. | | `searchMaxResults` | `8` | Upper bound on sources returned by one `web_search` call (the seam truncates a longer provider list and flags it). | +| `fetchTimeoutMs` | `30000` | Cooperative tool-call timeout budget (ms) for `web_fetch`. | +| `searchTimeoutMs` | `30000` | Cooperative tool-call timeout budget (ms) for `web_search`. | + +`fetchTimeoutMs`/`searchTimeoutMs` declare each tool's cooperative timeout budget (attached as `ToolDefinition.timeoutMs`), enforced by [`@deepseek-ai/dsh-timeout-policy`](../../timeout/timeout-policy/README.md); the model-facing schema exposes no timeout argument. ```yaml - id: tool-web diff --git a/packages/web/tool-web/src/fetch.ts b/packages/web/tool-web/src/fetch.ts index 4bf9b5e2ff..571ce00797 100644 --- a/packages/web/tool-web/src/fetch.ts +++ b/packages/web/tool-web/src/fetch.ts @@ -5,10 +5,11 @@ * while the fetch provider owns safe retrieval (transport, redirects, caps). * * The model-facing schema exposes NO timeout knob: the tool-call budget is - * deployment policy owned by `@deepseek-ai/dsh-timeout-policy` (a `tools/execute` - * wrapper), matching the reference-agent `WebFetch` shape. This tool just - * forwards the (possibly deadline-derived) `exec.signal` to `ctx.web`; the - * provider keeps its own timeout only as a resource backstop for direct callers. + * deployment policy DECLARED via this package's `fetchTimeoutMs` config (attached + * as `ToolDefinition.timeoutMs`) and ENFORCED by `@deepseek-ai/dsh-timeout-policy` + * (a `tools/execute` wrapper), matching the reference-agent `WebFetch` shape. This + * tool just forwards the (possibly deadline-derived) `exec.signal` to `ctx.web`; + * the provider keeps its own timeout only as a resource backstop for direct callers. */ import type { Context } from 'cordis' @@ -23,7 +24,8 @@ import { htmlToMarkdown } from './html.ts' /** * Validate value constraints the schema DSL can't express: a non-blank `url`. * Throws a plain `Error` otherwise. No timeout parameter — the tool-call budget - * is deployment policy (`@deepseek-ai/dsh-timeout-policy`), not a model argument. + * is deployment policy declared via `fetchTimeoutMs` config and enforced by + * `@deepseek-ai/dsh-timeout-policy`, not a model argument. * * @param args - the schema-validated `web_fetch` arguments. * @returns the arguments as the seam's request fields. @@ -80,8 +82,10 @@ export function presentFetchCall(args: { url: string }): GenericCallView { * * @param ctx - context whose `tools` and `systemPrompt` registries receive the * registrations; both are effect-scoped and unregister on plugin dispose. + * @param timeoutMs - the cooperative tool-call budget (ms) attached as the tool's + * `ToolDefinition.timeoutMs` for `@deepseek-ai/dsh-timeout-policy` to enforce. */ -export function applyWebFetchTool(ctx: Context): void { +export function applyWebFetchTool(ctx: Context, timeoutMs: number): void { ctx.systemPrompt.section({ name: 'tool:web_fetch', order: 111, @@ -94,6 +98,7 @@ export function applyWebFetchTool(ctx: Context): void { parameters: { url: { type: 'string', required: true, description: 'The HTTP(S) URL to fetch.' }, }, + timeoutMs, async execute(args, exec): Promise { const input = parseFetchArgs(args) const result = await ctx.web.fetch( diff --git a/packages/web/tool-web/src/index.ts b/packages/web/tool-web/src/index.ts index 78b6a4bdf3..0f948eacb6 100644 --- a/packages/web/tool-web/src/index.ts +++ b/packages/web/tool-web/src/index.ts @@ -33,7 +33,10 @@ export const name = 'tool-web' /** Services required by the web tool suite. */ export const inject = ['tools', 'web', 'systemPrompt'] -/** Plugin config: which web tools to register, and the `web_search` source cap. */ +/** Default cooperative tool-call timeout budget (ms) for the web tools. */ +export const DEFAULT_WEB_TOOL_TIMEOUT_MS = 30_000 + +/** Plugin config: which web tools to register, the source cap, and per-tool budgets. */ export interface Config { /** Register `web_search`. Defaults to true. */ search?: boolean @@ -41,12 +44,18 @@ export interface Config { fetch?: boolean /** Upper bound on sources returned by one `web_search` call. */ searchMaxResults?: number + /** Cooperative timeout budget (ms) for `web_fetch`. Defaults to 30000. */ + fetchTimeoutMs?: number + /** Cooperative timeout budget (ms) for `web_search`. Defaults to 30000. */ + searchTimeoutMs?: number } export const Config: z = z.object({ search: z.boolean().default(true), fetch: z.boolean().default(true), searchMaxResults: z.number().default(WEB_SEARCH_MAX_RESULTS), + fetchTimeoutMs: z.number().default(DEFAULT_WEB_TOOL_TIMEOUT_MS), + searchTimeoutMs: z.number().default(DEFAULT_WEB_TOOL_TIMEOUT_MS), }) /** The shape after schemastery applies its defaults to every field. */ @@ -61,7 +70,10 @@ function assertPositiveInteger(name: string, value: number): void { /** * Register the enabled web tools. `search`/`fetch` default to true; a product - * that wants only one disables the other in config. The tools' disposers are + * that wants only one disables the other in config. Each tool's cooperative + * timeout budget (`fetchTimeoutMs`/`searchTimeoutMs`, default 30000) is resolved + * here and attached to the tool as `ToolDefinition.timeoutMs` for + * `@deepseek-ai/dsh-timeout-policy` to enforce. The tools' disposers are * fiber-scoped (the effect-based registries clean up on dispose), so no manual * teardown is needed. */ @@ -69,6 +81,8 @@ export function apply(ctx: Context, config: Config): void { // schemastery (Config) has already filled every defaulted field. const resolved = config as ResolvedConfig assertPositiveInteger('searchMaxResults', resolved.searchMaxResults) - if (resolved.search) applyWebSearchTool(ctx, resolved.searchMaxResults) - if (resolved.fetch) applyWebFetchTool(ctx) + assertPositiveInteger('fetchTimeoutMs', resolved.fetchTimeoutMs) + assertPositiveInteger('searchTimeoutMs', resolved.searchTimeoutMs) + if (resolved.search) applyWebSearchTool(ctx, resolved.searchMaxResults, resolved.searchTimeoutMs) + if (resolved.fetch) applyWebFetchTool(ctx, resolved.fetchTimeoutMs) } diff --git a/packages/web/tool-web/src/search.ts b/packages/web/tool-web/src/search.ts index 3776940cde..a7587d328b 100644 --- a/packages/web/tool-web/src/search.ts +++ b/packages/web/tool-web/src/search.ts @@ -92,8 +92,10 @@ export function presentSearchCall(args: { query: string }): GenericCallView { * registrations; both are effect-scoped and unregister on plugin dispose. * @param maxResults - the deployment's source cap, sent as every seam * request's `maxResults`. + * @param timeoutMs - the cooperative tool-call budget (ms) attached as the tool's + * `ToolDefinition.timeoutMs` for `@deepseek-ai/dsh-timeout-policy` to enforce. */ -export function applyWebSearchTool(ctx: Context, maxResults: number): void { +export function applyWebSearchTool(ctx: Context, maxResults: number, timeoutMs: number): void { ctx.systemPrompt.section({ name: 'tool:web_search', order: 110, @@ -106,6 +108,7 @@ export function applyWebSearchTool(ctx: Context, maxResults: number): void { parameters: { query: { type: 'string', required: true, description: 'The search query.' }, }, + timeoutMs, async execute(args, exec): Promise { const input = parseSearchArgs(args) const result = await ctx.web.search( diff --git a/packages/web/tool-web/tests/integration.spec.ts b/packages/web/tool-web/tests/integration.spec.ts index 03ad76ca0f..de804e2bcd 100644 --- a/packages/web/tool-web/tests/integration.spec.ts +++ b/packages/web/tool-web/tests/integration.spec.ts @@ -41,9 +41,11 @@ beforeEach(async () => { await ctx.plugin(WebService, { searchProvider: WebSearchExa.EXA_PROVIDER_ID, fetchProvider: WebFetchLocal.LOCAL_FETCH_PROVIDER_ID }) await ctx.plugin(WebFetchLocal, {}) await ctx.plugin(WebSearchExa, { apiKey: 'exa-key', baseURL: 'https://api.exa.test' }) - // The shipped deployment shape: the tool-call budget is deployment policy over - // the model tools, set above the provider backstop so the policy normally wins. - await ctx.plugin(TimeoutPolicy, { tools: { web_fetch: { timeoutMs: 30_000 }, web_search: { timeoutMs: 30_000 } } }) + // The shipped deployment shape: the tool-call budget is declared by tool-web + // config (default 30s, attached as ToolDefinition.timeoutMs) and enforced by + // the zero-config timeout-policy plugin, set above the provider backstop so the + // policy normally wins. + await ctx.plugin(TimeoutPolicy) fiber = await ctx.plugin(ToolWeb) }) @@ -135,8 +137,9 @@ describe('tool-call timeout returns TOOL_TIMEOUT (deadline wins over a slow fetc await tctx.plugin(WebService, { fetchProvider: WebFetchLocal.LOCAL_FETCH_PROVIDER_ID }) // Provider backstop well ABOVE the tool-call budget, so the policy wins. await tctx.plugin(WebFetchLocal, { timeoutMs: 30_000, maxTimeoutMs: 60_000 }) - await tctx.plugin(TimeoutPolicy, { tools: { web_fetch: { timeoutMs: 50 } } }) - tfiber = await tctx.plugin(ToolWeb) + await tctx.plugin(TimeoutPolicy) + // The tool-call budget is declared by tool-web config, enforced by the policy. + tfiber = await tctx.plugin(ToolWeb, { fetchTimeoutMs: 50 }) }) afterEach(async () => { diff --git a/packages/web/tool-web/tests/tool-web.spec.ts b/packages/web/tool-web/tests/tool-web.spec.ts index e060f90a4c..4bb2728df7 100644 --- a/packages/web/tool-web/tests/tool-web.spec.ts +++ b/packages/web/tool-web/tests/tool-web.spec.ts @@ -349,3 +349,31 @@ describe('searchMaxResults is plugin config', () => { .rejects.toThrow(/tool-web: searchMaxResults must be a positive integer/) }) }) + +describe('tool-call timeout budget is plugin config', () => { + it('attaches the default 30s budget to web_fetch and web_search', async () => { + const { fiber, ctx } = await mountTools() + expect(ctx.tools.get('web_fetch')?.timeoutMs).toBe(30_000) + expect(ctx.tools.get('web_search')?.timeoutMs).toBe(30_000) + await fiber.dispose() + }) + + it('honors per-tool timeout overrides from config', async () => { + const { fiber, ctx } = await mountTools({ config: { fetchTimeoutMs: 60_000, searchTimeoutMs: 10_000 } }) + expect(ctx.tools.get('web_fetch')?.timeoutMs).toBe(60_000) + expect(ctx.tools.get('web_search')?.timeoutMs).toBe(10_000) + await fiber.dispose() + }) + + it.each([ + ['fetchTimeoutMs', { fetchTimeoutMs: 0 }], + ['searchTimeoutMs', { searchTimeoutMs: -5 }], + ])('rejects a non-positive-integer %s at load', async (key, config) => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(WebService, {}) + await expect(ctx.plugin(ToolWeb, config)) + .rejects.toThrow(new RegExp(`tool-web: ${key} must be a positive integer`)) + }) +}) From 395a0b8336965cb0f1ea9744830cbb4e1624df54 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Wed, 8 Jul 2026 15:06:02 +0800 Subject: [PATCH 067/232] docs(timeout): update RFC + generated catalogs for the declaration split MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The RFC's deployment-policy decision is unchanged; state the current mechanism in place — the per-tool budget is declared on ToolDefinition (timeoutMs, set by the owning tool plugin from its config) and the enforcer is zero-config, so a mistyped tool name is impossible. Regenerate config-catalog (timeout-policy -> no-config; tool-web gains fetch/searchTimeoutMs), the event graph (tools/change loses its timeout-policy consumer), the ToolDefinition type-equiv block, and a source-line drift in the cordis services catalog. --- docs/config-catalog.md | 34 ++++--------------- docs/cordis-catalog/services.md | 2 +- docs/core-data-structures/tools.md | 8 +++++ docs/event-producer-consumer.md | 2 +- .../2026-07-07-tool-call-timeout-policy.md | 27 +++++++-------- 5 files changed, 30 insertions(+), 43 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 20254f3e35..1680bb40ec 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -602,31 +602,6 @@ export interface Config { Source: [`packages/core/system-prompt/src/index.ts:179`](../packages/core/system-prompt/src/index.ts) -## `@deepseek-ai/dsh-timeout-policy` - -Requires: `tools` - -```ts config-catalog -/** - * Plugin config: per-tool timeout policy, keyed by the model-facing tool name. - * There is deliberately NO global default (a global budget would silently start - * failing any tool that happens to run long once the plugin loads) and NO model - * override (timeout is deployment policy, not prompt semantics) in this version. - */ -export interface Config { - /** Timeout policy per tool name; an unlisted tool gets no deadline from this plugin. */ - tools?: Record -} - -/** Per-tool timeout policy. `timeoutMs` is required and must be positive finite. */ -export interface ToolTimeoutPolicy { - /** The per-call cooperative deadline for this tool, in milliseconds. */ - timeoutMs: number -} -``` - -Source: [`packages/timeout/timeout-policy/src/index.ts:64`](../packages/timeout/timeout-policy/src/index.ts) - ## `@deepseek-ai/dsh-tool-fs` Requires: `tools` · `fs` · `systemPrompt` @@ -683,7 +658,7 @@ Source: [`packages/subagent/tool-subagent/src/index.ts:44`](../packages/subagent Requires: `tools` · `web` · `systemPrompt` ```ts config-catalog -/** Plugin config: which web tools to register, and the `web_search` source cap. */ +/** Plugin config: which web tools to register, the source cap, and per-tool budgets. */ export interface Config { /** Register `web_search`. Defaults to true. */ search?: boolean @@ -691,10 +666,14 @@ export interface Config { fetch?: boolean /** Upper bound on sources returned by one `web_search` call. */ searchMaxResults?: number + /** Cooperative timeout budget (ms) for `web_fetch`. Defaults to 30000. */ + fetchTimeoutMs?: number + /** Cooperative timeout budget (ms) for `web_search`. Defaults to 30000. */ + searchTimeoutMs?: number } ``` -Source: [`packages/web/tool-web/src/index.ts:37`](../packages/web/tool-web/src/index.ts) +Source: [`packages/web/tool-web/src/index.ts:40`](../packages/web/tool-web/src/index.ts) ## `@deepseek-ai/dsh-web` @@ -818,6 +797,7 @@ These load from a `cordis.yml` entry with no `config:` block; they declare no co - `@deepseek-ai/dsh-llm` ([`packages/llm/llm/src/index.ts`](../packages/llm/llm/src/index.ts)) - `@deepseek-ai/dsh-session` ([`packages/core/session/src/index.ts`](../packages/core/session/src/index.ts)) - `@deepseek-ai/dsh-subagent` ([`packages/subagent/subagent/src/index.ts`](../packages/subagent/subagent/src/index.ts)) +- `@deepseek-ai/dsh-timeout-policy` — requires `tools` ([`packages/timeout/timeout-policy/src/index.ts`](../packages/timeout/timeout-policy/src/index.ts)) - `@deepseek-ai/dsh-tool-bash` — requires `tools` · `bash` · `systemPrompt` ([`packages/bash/tool-bash/src/index.ts`](../packages/bash/tool-bash/src/index.ts)) - `@deepseek-ai/dsh-tool-todo` — requires `tools` ([`packages/todo/tool-todo/src/index.ts`](../packages/todo/tool-todo/src/index.ts)) - `@deepseek-ai/dsh-tools` — requires `systemPrompt` ([`packages/core/tools/src/index.ts`](../packages/core/tools/src/index.ts)) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index de47287a83..517d7196a9 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -205,7 +205,7 @@ async execute(exec: ToolExecution): Promise Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:299`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:307`](../../packages/core/tools/src/index.ts) ## `ctx.web` — `WebService` diff --git a/docs/core-data-structures/tools.md b/docs/core-data-structures/tools.md index a38a5b9c15..96d3e79bdc 100644 --- a/docs/core-data-structures/tools.md +++ b/docs/core-data-structures/tools.md @@ -11,6 +11,14 @@ A `ToolSchema` (the model-facing fields) plus the `execute` function and optiona ```ts type-equiv interface ToolDefinition extends ToolSchema { execute(args: unknown, exec: ToolExecution): Promise + /** + * Cooperative tool-call timeout budget in milliseconds. Omit for no deadline. + * Enforced by `@deepseek-ai/dsh-timeout-policy` (a `tools/execute` wrapper); it + * is NEVER sent to the model — `schemas()` whitelists only name/description/ + * parameters. Declaring it asserts this tool forwards `exec.signal` to a + * cooperative implementation that can reach quiescence when the signal aborts. + */ + timeoutMs?: number /** * Optional: how to present the PENDING state of one call in a UI, derived from * the call's `args` (parsed arguments, `unknown` — the tool validates/narrows diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index ce8e17e851..0c95164728 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -31,7 +31,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:91`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:38`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | | `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:44`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | -| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:118`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | [`timeout-policy`](../packages/timeout/timeout-policy) | +| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:118`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | | `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:97`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`timeout-policy`](../packages/timeout/timeout-policy) | | `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:113`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:77`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | diff --git a/docs/rfc/implemented/architecture/2026-07-07-tool-call-timeout-policy.md b/docs/rfc/implemented/architecture/2026-07-07-tool-call-timeout-policy.md index edde6aca43..362f5cb5e8 100644 --- a/docs/rfc/implemented/architecture/2026-07-07-tool-call-timeout-policy.md +++ b/docs/rfc/implemented/architecture/2026-07-07-tool-call-timeout-policy.md @@ -14,7 +14,7 @@ Tool-call timeout is a policy that applies only to model-facing tool execution, - `@deepseek-ai/dsh-timeout` remains the shared library that owns `deadline()` and `timeoutOf()`. - `@deepseek-ai/dsh-tools` has an around-dispatch waterfall, `tools/execute`, between `tools/pre-execute` and `tools/post-execute`. -- `@deepseek-ai/dsh-timeout-policy` reads deployment config and wraps configured tool calls by deriving a new `exec.signal`. +- `@deepseek-ai/dsh-timeout-policy` reads each tool's declared `timeoutMs` from the registry and wraps a call that has one by deriving a new `exec.signal`. The execution pipeline is: @@ -28,7 +28,7 @@ ctx.tools.execute(exec) -> tools/post-execute ``` -The default behavior is conservative: an unconfigured tool receives no `TOOL_TIMEOUT` deadline from the plugin. +The default behavior is conservative: a tool that declares no `timeoutMs` receives no `TOOL_TIMEOUT` deadline from the plugin. ### The `tools/execute` around seam @@ -38,20 +38,19 @@ That the catch is the base `next` — not something outside the waterfall — is ### The `timeout-policy` plugin -The plugin is `@deepseek-ai/dsh-timeout-policy`, a function/namespace plugin (`name` / `Config` / `apply`) in the `packages/timeout/` group. Its config is per tool, with no global default and no model override: +The plugin is `@deepseek-ai/dsh-timeout-policy`, a zero-config function/namespace plugin (`name` / `inject` / `apply`) in the `packages/timeout/` group. The per-tool budget is DECLARED on the tool, not on this plugin: a `ToolDefinition` carries an optional `timeoutMs`, which the owning tool plugin sets from its own config. `dsh-tool-web`, for example, resolves `fetchTimeoutMs` / `searchTimeoutMs` (default 30000) onto the `web_fetch` / `web_search` definitions: ```yaml - id: timeout-policy name: '@deepseek-ai/dsh-timeout-policy' +- id: tool-web + name: '@deepseek-ai/dsh-tool-web' config: - tools: - web_fetch: - timeoutMs: 30000 - web_search: - timeoutMs: 30000 + fetchTimeoutMs: 30000 + searchTimeoutMs: 30000 ``` -`timeoutMs` is required for every configured tool and must be positive finite (validated at `apply`). For a configured tool the listener arms `deadline(exec.signal, timeoutMs, 'TOOL_TIMEOUT')`, swaps the derived signal onto `exec` for the downstream dispatch, restores the caller's own signal afterward, and returns a structured `TOOL_TIMEOUT` result when `timeoutOf(d.signal, 'TOOL_TIMEOUT')` matches. An unconfigured tool delegates unchanged. +Keeping the tool name out of this plugin's config is deliberate: a budget keyed by a free-text tool name could be mistyped (`web_fech`) and then silently apply to nothing. Declaring `timeoutMs` on the tool makes that failure class structurally impossible — the enforcer reads `ctx.tools.get(exec.name)?.timeoutMs`, and `exec.name` is the tool being dispatched, so the lookup always resolves and there is no unknown-name path to warn or throw about. `timeoutMs` is validated positive-finite by `defineTool` at definition time. For a tool that declares a budget the listener arms `deadline(exec.signal, timeoutMs, 'TOOL_TIMEOUT')`, swaps the derived signal onto `exec` for the downstream dispatch, restores the caller's own signal afterward, and returns a structured `TOOL_TIMEOUT` result when `timeoutOf(d.signal, 'TOOL_TIMEOUT')` matches. A tool with no declared budget delegates unchanged. Signal replacement is by **in-place mutation of `exec.signal`**, not by passing a new object to `next()`. Cordis's waterfall `next()` ignores any arguments handed to it and re-invokes downstream listeners with the shared payload array (`vendor/cordis/src/events.ts`), so the documented cordis idiom — mutate the shared object, then delegate — is the only mechanism that reaches dispatch. The plugin restores `exec.signal` to the caller's original in a `finally` so `tools/post-execute` never sees this plugin's (possibly already-aborted) deadline signal. @@ -68,7 +67,7 @@ function toolTimeoutResult(callId: CallId, timeoutMs: number): ToolExecutionResu } ``` -This is a cooperative deadline. It does not kill arbitrary work by racing the tool promise; the tool or the capability it calls must honor `exec.signal` and reach quiescence. "Configured" therefore MEANS "cooperative with `exec.signal`", which the plugin README states as its contract. +This is a cooperative deadline. It does not kill arbitrary work by racing the tool promise; the tool or the capability it calls must honor `exec.signal` and reach quiescence. Declaring `timeoutMs` therefore MEANS "this tool is cooperative with `exec.signal`", which the plugin README states as its contract. No new session event is needed for reconstructability: `TOOL_TIMEOUT` is the final model-facing `tool/result` for that call, so the existing session log already records the content and structured `{ name, code }` error the next model request sees. @@ -82,7 +81,7 @@ No new session event is needed for reconstructability: `TOOL_TIMEOUT` is the fin `read`, `write`, `edit`, `todo_write`, `bash_output`, and `bash_kill` do not opt into tool-call timeout: they are local filesystem or short registry/session operations where a deadline would be best-effort only or unnecessary. -A future model-facing grep/glob tool can be implemented on top of `ctx.bash` without importing `@deepseek-ai/dsh-timeout`: it forwards `exec.signal` to `ctx.bash`, and a deployment configures `timeout-policy` for its budget. If bash-local's backend timeout becomes a problem for such a tool, the bash seam can later add a caller-owned-deadline mode; that is outside this cut. +A future model-facing grep/glob tool can be implemented on top of `ctx.bash` without importing `@deepseek-ai/dsh-timeout`: it forwards `exec.signal` to `ctx.bash`, and declares its own `timeoutMs` (from its plugin's config) for the enforcer to apply. If bash-local's backend timeout becomes a problem for such a tool, the bash seam can later add a caller-owned-deadline mode; that is outside this cut. ## Alternatives considered @@ -92,7 +91,7 @@ A future model-facing grep/glob tool can be implemented on top of `ctx.bash` wit **Move all timeout policy out of bash-local immediately.** Cleaner long-term — bash-local would become a pure subprocess executor and all callers would own their deadlines. It loses as the first step because hooks call `ctx.bash` directly and the bash model tool has foreground/background semantics that are not the same tool-call lifetime. Keeping `BASH_TIMEOUT` preserves those paths while tool-call timeout proves itself on simpler tools. -**Use a global default budget for every tool.** Convenient, but it surprises tool authors: any tool that accidentally runs longer than the global budget would start failing once the plugin loads. Per-tool config makes adoption deliberate. +**Use a global default budget for every tool.** Convenient, but it surprises tool authors: any tool that accidentally runs longer than the global budget would start failing once the plugin loads. A per-tool declared budget makes adoption deliberate. **Expose a model-facing `timeout_ms` override.** Claude Code's `WebFetch`/`WebSearch` and Codex's web tools keep timeout out of the model-call shape. A model override would make timeout part of prompt semantics and force schema/argument-stripping rules into `timeout-policy`. Web timeout stays deployment policy only. @@ -106,6 +105,6 @@ A future model-facing grep/glob tool can be implemented on top of `ctx.bash` wit - `@deepseek-ai/dsh-tools` gains an around-dispatch surface after the interception seams deliberately split pre/post tool hooks. Its contract is narrow — wrap registry dispatch, not replace the pre-gate or post-result policy — and the base `next()` is dispatch-with-normalization so a wrapper never sees a raw tool throw. - Multiple `tools/execute` listeners compose by ordinary Cordis waterfall order: a listener that calls `next()` wraps downstream listeners plus dispatch; one that returns without `next()` short-circuits them. A deployment combining timeout with a future retry/sandbox/metrics wrapper chooses semantics by registration order ("timeout covers the whole retry" vs "timeout covers each attempt"). -- Config-only opt-in is a deliberate misconfiguration risk: a deployment can configure a timeout for a tool that does not honor `exec.signal`, and that tool will not stop on timeout. The plugin contract states that "configured" means cooperative; the web tools prove the pattern on tools that already forward the signal. +- Opt-in by declaration is a deliberate misconfiguration risk: a tool can declare a `timeoutMs` without honoring `exec.signal`, and that tool will not stop on timeout. The plugin contract states that declaring a budget means cooperative; the web tools prove the pattern on tools that already forward the signal. - During the transition `bash` and the migrated web tools use different timeout paths on purpose: `TOOL_TIMEOUT` is the model-facing tool-call budget, while `BASH_TIMEOUT` remains the bash backend timeout used by bash and hooks. -- Deviation from the literal proposal, recorded per the implemented-RFC rule: the plugin package is `@deepseek-ai/dsh-timeout-policy` (not `tool-timeout`), and signal replacement is in-place `exec.signal` mutation before `next()` (not `next({ ...exec, signal })`, which cordis ignores). Both are described in `## Decision` above. +- Deviation from the literal proposal, recorded per the implemented-RFC rule: the plugin package is `@deepseek-ai/dsh-timeout-policy` (not `tool-timeout`), signal replacement is in-place `exec.signal` mutation before `next()` (not `next({ ...exec, signal })`, which cordis ignores), and the per-tool budget is declared on the `ToolDefinition` (`timeoutMs`, set by the owning tool plugin from its config) rather than mapped by tool name in this plugin's config — so the enforcer is zero-config and a mistyped tool name is impossible. All three are described in `## Decision` above. From a7c055270d4dff8c010380d7f5a505b7bc442e9f Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Wed, 8 Jul 2026 15:10:15 +0800 Subject: [PATCH 068/232] chore(timeout-policy): drop now-unused schemastery dependency The zero-config enforcer no longer imports schemastery (its Config was removed); knip flags the stale dependency. Remove it from the manifest and sync the lockfile. --- packages/timeout/timeout-policy/package.json | 3 --- pnpm-lock.yaml | 4 ---- 2 files changed, 7 deletions(-) diff --git a/packages/timeout/timeout-policy/package.json b/packages/timeout/timeout-policy/package.json index 0cf3febc75..9069735b86 100644 --- a/packages/timeout/timeout-policy/package.json +++ b/packages/timeout/timeout-policy/package.json @@ -27,9 +27,6 @@ "@deepseek-ai/dsh-tools": "^0.0.1", "cordis": "^4.0.0-rc.6" }, - "dependencies": { - "schemastery": "^3.18.0" - }, "devDependencies": { "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-timeout": "workspace:^", diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index c966ce3d29..c057494cf0 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -817,10 +817,6 @@ importers: version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) packages/timeout/timeout-policy: - dependencies: - schemastery: - specifier: ^3.18.0 - version: 3.18.0 devDependencies: '@deepseek-ai/dsh-llm': specifier: workspace:^ From ea4c10d7530ce85fec1de3ed5114c3f8581e2962 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Wed, 8 Jul 2026 15:44:30 +0800 Subject: [PATCH 069/232] refactor(agent): replace the per-step advice seam with agent/session-prefix MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Review discussion converged on the industry shape (Claude Code caches user context per conversation; Codex separates initial context from diffs; Kimi appends at continuation boundaries to protect prompt caching): stable openers belong in a compose-once prefix, mid-session changes belong in append-only history — not in a per-request slot. agent/session-prefix fires ONCE per loop instance, lazily on its first request-building step: the composed Message[] is deep-frozen, cached on the transmission bookkeeping, recorded as EpochHeader.messagePrefix on the anchoring 'initial'/'resume' snapshot, and reused verbatim for every request the instance sends — prefix stability is structural, not a producer discipline, and a resume recomposes with attributable drift. The request is messagePrefix + boundary snapshot. The per-step RequestAdvice/RequestAdviceContext surface and the messageSuffix header field are dropped: the tail slot had no consumer, and every current update pattern (new AGENTS.md discovered, memory update, skills change) routes through the existing append-only history channels — inject(), tools/post-execute additionalContext, prompt-submit additionalContext — each paid once and prefix-cached thereafter. The messagePrefix delta arm stays for codec totality; the loop never produces one in practice. --- docs/architecture.md | 10 +- docs/cordis-catalog/events.md | 38 ++--- docs/core-data-structures/core.md | 40 +---- docs/core-data-structures/session.md | 21 ++- docs/event-producer-consumer.md | 24 +-- docs/persistence-catalog.md | 32 ++-- .../2026-07-05-reconstructable-requests.md | 8 +- packages/core/agent-loop/README.md | 8 +- packages/core/agent-loop/src/loop.ts | 66 +++++---- packages/core/agent-loop/src/request-log.ts | 11 +- .../agent-loop/tests/interception.spec.ts | 137 +++++++----------- packages/core/agent/README.md | 2 +- packages/core/agent/src/types.ts | 119 ++++----------- packages/core/session/README.md | 2 +- packages/core/session/src/request-header.ts | 28 ++-- packages/core/session/src/types.ts | 28 ++-- .../core/session/tests/request-header.spec.ts | 29 ++-- packages/llm/llm/src/types.ts | 4 +- packages/support/invariants/src/index.ts | 14 +- .../invariants/tests/invariants.spec.ts | 17 +-- scripts/type-equiv.manifest.json | 2 - 21 files changed, 260 insertions(+), 380 deletions(-) diff --git a/docs/architecture.md b/docs/architecture.md index 1ba6eb1ef9..0358c73d52 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -38,7 +38,7 @@ Events are the harness extension API. Each service owns the vocabulary for the b ### Event Domains -Use the event domain to decide where new behavior belongs: +Pick the event domain for new behavior: - **Session events** are durable, replayable facts. Turn and step boundaries, user input, assistant output, tool calls, tool results, steering, compaction records, and tool-owned durable facts append to the session log and flow through `session/event`. - **Agent events** are live runtime surfaces. They carry the live `Agent` handle for status, diagnostics, prompt admission, call-config shaping, result validation, and continuation policy. @@ -46,7 +46,7 @@ Use the event domain to decide where new behavior belongs: ### Interception Semantics -Waterfall events behave like around-middleware: a listener delegates by calling `next()` and vetoes or takes over by returning without it. Full rule: [Cordis waterfall semantics](cordis-primer.md#cordis-waterfall-semantics). +Waterfall events behave like around-middleware: a listener delegates by calling `next()`; returning without it vetoes or takes over. Full rule: [Cordis waterfall semantics](cordis-primer.md#cordis-waterfall-semantics). ## Default Loop Lifecycle @@ -72,7 +72,7 @@ forever: agent/pre-step 'step/start' snapshot the derived messages (the reconstruction boundary) - agent/request (config only) -> agent/request-advice -> log request/header -> llm/stream (frozen) + agent/request (config only) -> agent/session-prefix (first request) -> log request/header -> llm/stream (frozen) 'assistant/chunk' agent/step-result 'assistant/message' @@ -108,7 +108,7 @@ Every session event is turn-enclosed. Reloading a crashed session preserves the The session log is the source of truth. `deriveMessages()` projects session events into the `Message[]` sent to the model; raw `assistant/chunk` events stay in the log for replay and UI fidelity. Replay, fork, resume, transcript rendering, telemetry, and persistence all derive from the same event stream. -**Model-visible ⟺ logged**: the log reconstructs every request — messages at `step/start` framed by the header's request-only `messagePrefix`/`messageSuffix`, headers by folding `request/header` — and dev invariants assert this ([reconstructability RFC](rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)). +**Model-visible ⟺ logged**: the log reconstructs every request — messages at `step/start` fronted by the header's session prefix, headers by folding `request/header` — and dev invariants assert this ([reconstructability RFC](rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)). Durability is a plugin concern. Persistence backends buffer synchronous `session/event` notifications and the loop awaits a turn-end checkpoint before moving on. The `SessionPersistence` seam stores `SessionEvent` directly, with metadata in `SessionHeader`; JSONL and SQLite share one contract suite. @@ -141,7 +141,7 @@ New behavior should attach to a documented seam; changing the shipped loop requi | Add command execution | implement and register a `ctx.bash` backend | | Add filesystem access or policy | implement a `ctx.fs` provider or listen on `fs/*` policy events | | Intercept prompts, requests, tool use, or continuation | listen on the relevant `agent/*` or `tools/*` waterfall | -| Add per-request context that must not become history | contribute request-only messages on `agent/request-advice`; logged on the request header | +| Add a session-stable request prefix outside history | compose it on `agent/session-prefix`, once per loop instance; logged on the request header | | Add UI or editor integration | drive `ctx.agents` and render from `session/event` | | Add durable session state | add a `SessionEventMap` member and render/replay from the log | | Fork a live session | use `ctx.sessions.fork(source, boundary?, childSessionId?)` | diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 7ee3c0e2f5..20cd367f32 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -23,7 +23,7 @@ An agent was registered in the AgentRegistry and is ready to receive messages. Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:313`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:265`](../../packages/core/agent/src/types.ts) ### `agent/disposed` — emit @@ -35,7 +35,7 @@ An agent was disposed and removed from the registry; its fiber and any in-flight Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:320`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:272`](../../packages/core/agent/src/types.ts) ### `agent/error` — emit @@ -47,7 +47,7 @@ A step or turn errored. The loop reports a failure here (plus the logger) even w Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:512`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:455`](../../packages/core/agent/src/types.ts) ### `agent/pre-step` — serial @@ -61,7 +61,7 @@ Serial (awaited in registration order), not a waterfall: a listener mutates the Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:398`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:350`](../../packages/core/agent/src/types.ts) ### `agent/prompt-submit` — waterfall @@ -73,7 +73,7 @@ Waterfall: decide what happens to ONE drained queued message before it becomes a Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:411`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:363`](../../packages/core/agent/src/types.ts) ### `agent/queued` — emit @@ -85,11 +85,11 @@ A message entered the agent's inbox (queued or steering). `source` is the resolv Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:338`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:290`](../../packages/core/agent/src/types.ts) ### `agent/request` — waterfall -Waterfall: shape the step's call configuration — model switching, sampling overrides — by returning a replacement LlmCallConfig (the frozen seed is the config the loop would otherwise use). Config is ALL a listener shapes here: every request is a pure function of the session log (the reconstructability RFC), so model-visible content flows through the log channels — `inject()`, steering, prompt-submit `additionalContext`, prompt sections via `system-prompt/assemble`, or header-logged request-only messages via agent/request-advice — never through request mutation, and the loop records whatever config the request actually uses as a `request/header*` event before dispatch. The step's messages are already snapshotted when this fires (the `step/start` boundary): an `inject()` from a listener here lands in the log but joins the NEXT request. For surface mutation that must precede the snapshot (compaction), use agent/pre-step. Call `next()` to delegate, or return an LlmCallConfig without it to short-circuit. +Waterfall: shape the step's call configuration — model switching, sampling overrides — by returning a replacement LlmCallConfig (the frozen seed is the config the loop would otherwise use). Config is ALL a listener shapes here: every request is a pure function of the session log (the reconstructability RFC), so model-visible content flows through the log channels — `inject()`, steering, prompt-submit `additionalContext`, prompt sections via `system-prompt/assemble`, or the header-logged session prefix via agent/session-prefix — never through request mutation, and the loop records whatever config the request actually uses as a `request/header*` event before dispatch. The step's messages are already snapshotted when this fires (the `step/start` boundary): an `inject()` from a listener here lands in the log but joins the NEXT request. For surface mutation that must precede the snapshot (compaction), use agent/pre-step. Call `next()` to delegate, or return an LlmCallConfig without it to short-circuit. ```ts cordis-catalog 'agent/request'(agent: Agent, turn: number, step: number, config: LlmCallConfig, next: () => Promise): Promise @@ -97,23 +97,23 @@ Waterfall: shape the step's call configuration — model switching, sampling ove Types: [Agent](../core-data-structures/core.md) · [LlmCallConfig](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:435`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:387`](../../packages/core/agent/src/types.ts) -### `agent/request-advice` — waterfall +### `agent/session-prefix` — waterfall -Waterfall: weave request-ONLY advice around the derived history — a RequestAdvice whose `before` messages sit in front of the ENTIRE boundary snapshot in `GenerateOptions.messages` and whose `after` messages follow its last message. Fires once per step, inside the open step, after the agent/request config waterfall and before the loop logs the request header. This is the seam for per-request advisory context the model must see NOW but that must NOT become durable history (a skills catalog, an environment reminder): contributions are recorded on the request's `request/header*` event (`EpochHeader.messagePrefix` / `messageSuffix`) — never as session messages — so `Session.deriveMessages()` stays untouched and the request remains reconstructable from the log. +Waterfall: compose the SESSION PREFIX — request-only messages placed in front of the ENTIRE derived history (directly after the provider's system slot) on every request this loop instance sends. Fired ONCE per loop instance, lazily on its first request-building step; the composed result is deep-frozen, recorded as `EpochHeader.messagePrefix` on the instance's anchoring `'initial'`/`'resume'` header snapshot, and reused verbatim for every subsequent request — never recomputed mid-session, so the provider prefix cache holds by construction (a process restart or `ctx.agents.resume()` is a new instance: it recomposes, and any drift lands attributably on the `'resume'` snapshot). -The seed is frozen and empty; a contributing listener returns a NEW RequestAdvice extending `await next()` (spread its arrays — never mutate them), so contributions compose across plugins in registration order. The boundary snapshot is already taken when this fires: a `session.append`/`inject()` from a listener here lands in the log but joins the NEXT request — contribute through the returned value, not the session. Call `next()` to delegate, or return a RequestAdvice without it to short-circuit. +This is the home for session-stable openers the model must always see but that must NOT become durable history — a skills catalog, an AGENTS.md digest, a workspace baseline: `Session.deriveMessages()` never returns the prefix, and the header events are its only durable record, so the request stays reconstructable from the log. Content that CHANGES mid-session belongs in the append-only history channels instead — `agent.inject()`, a `tools/post-execute` decision's `additionalContext`, prompt-submit `additionalContext` — each a durable `context/message` paid once and prefix-cached thereafter. -Pick the channel by change frequency (the cost model): a contribution rides the request's uncached tail, re-tokenized at full price on EVERY request it appears in — cheap only while small. Session-FROZEN content belongs in `before`, where it extends the cacheable prefix at zero marginal cost (but changing it mid-session invalidates the provider cache for the entire history after it). A LOW-FREQUENCY change notice belongs in durable history via `agent.inject()` — appended once, prefix-cached thereafter. Reserve `after` for small, frequently refreshed state snapshots, where a durable chain of stale copies would bloat the log and mislead the model. +The seed is a frozen empty list; a contributing listener returns a NEW array extending `await next()` (`[...prefix, mine]` — never an in-place push), so contributions compose across plugins in registration order and compose deterministically for a fixed plugin set. Call `next()` to delegate, or return a list without it to short-circuit. ```ts cordis-catalog -'agent/request-advice'(agent: Agent, turn: number, step: number, advice: RequestAdvice, context: RequestAdviceContext, next: () => Promise): Promise +'agent/session-prefix'(agent: Agent, prefix: Message[], signal: AbortSignal, next: () => Promise): Promise ``` -Types: [Agent](../core-data-structures/core.md) +Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:477`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:420`](../../packages/core/agent/src/types.ts) ### `agent/session-start` — emit @@ -125,7 +125,7 @@ The agent's session lifecycle began, fired once before its first turn. `source` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:353`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:305`](../../packages/core/agent/src/types.ts) ### `agent/status` — emit @@ -137,7 +137,7 @@ Agent status changed (`idle` ⇄ `running`, or → `disposed`). Drive lifecycle Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:329`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:281`](../../packages/core/agent/src/types.ts) ### `agent/step-result` — waterfall @@ -149,7 +149,7 @@ Waterfall: post-process the assembled assistant Message before tool dispatch (va Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:487`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:430`](../../packages/core/agent/src/types.ts) ### `agent/turn-continuation` — waterfall @@ -161,7 +161,7 @@ Waterfall: override the turn-continuation decision via a typed ContinuationDecis Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:500`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:443`](../../packages/core/agent/src/types.ts) ## `fs/*` diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index c5249d4859..13692dad9e 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -130,8 +130,8 @@ interface GenerateOptions { /** * Ordered conversation messages, exactly as the provider sees them (after * the `system` slot). A loop-built request assembles them as - * `EpochHeader.messagePrefix` + the derived history + `messageSuffix` - * (dsh-agent-loop); a hand-built one-shot passes any list. + * `EpochHeader.messagePrefix` + the derived history (dsh-agent-loop); a + * hand-built one-shot passes any list. */ messages: Message[] /** System prompt text (adapters map to the provider's system slot). */ @@ -193,9 +193,9 @@ The model-facing `ToolSchema` is the wire shape; the registered `ToolDefinition` ### The request envelope: `LlmCallConfig` and the logged header -Requests are built by the loop, not shaped per call: the non-history half of a request — the `EpochHeader`: this call configuration plus the rendered system prompt, the tool schemas in the assembly's canonical order (dsh-system-prompt's `toolOrder` config, lexicographic when unset), and any request-only advice messages — is logged session state (`request/header` snapshot and delta events, [session.md](session.md#the-request-header-events-requestheader-and-requestheader-delta)), so every conversation request is a pure function of the session log ([reconstructability RFC](../rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)). The `agent/request` waterfall receives a frozen `LlmCallConfig` seed and a listener returns a replacement to switch model or sampling; the `agent/request-advice` waterfall weaves request-only advice around the derived history (recorded as the header's `messagePrefix`/`messageSuffix`) — the loop logs whatever the request actually uses. Loop-built requests arrive at `llm/stream` deep-frozen; mutation throws. +Requests are built by the loop, not shaped per call: the non-history half of a request — the `EpochHeader`: this call configuration plus the rendered system prompt, the tool schemas in the assembly's canonical order (dsh-system-prompt's `toolOrder` config, lexicographic when unset), and the session prefix — is logged session state (`request/header` snapshot and delta events, [session.md](session.md#the-request-header-events-requestheader-and-requestheader-delta)), so every conversation request is a pure function of the session log ([reconstructability RFC](../rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)). The `agent/request` waterfall receives a frozen `LlmCallConfig` seed and a listener returns a replacement to switch model or sampling; the `agent/session-prefix` waterfall — fired once per loop instance — composes the request-only messages fronting the derived history (recorded as the header's `messagePrefix`) — the loop logs whatever the request actually uses. Loop-built requests arrive at `llm/stream` deep-frozen; mutation throws. -On the wire, a loop-built request reads in this order: the `system` slot (the rendered prompt assembly) → `messagePrefix` (the request-only `before` advice) → the derived history — the boundary snapshot, whose tail is the newest `user/message` on a turn's first step and the previous step's tool results on later steps — → `messageSuffix` (the request-only `after` advice, the last thing the model reads). The advice arrays never enter the derived history; their durable record is the header events, and the dev invariant recomputes exactly this equation against every loop-built request. +On the wire, a loop-built request reads in this order: the `system` slot (the rendered prompt assembly) → `messagePrefix` (the frozen session prefix) → the derived history — the boundary snapshot, whose tail is the newest `user/message` on a turn's first step and the previous step's tool results on later steps. The prefix never enters the derived history; its durable record is the header events, and the dev invariant recomputes exactly this equation against every loop-built request. FIXME(call-config-shape): revisit the exact definition of this type — which fields are genuinely epoch-level for cache purposes (`model` certainly; the sampling scalars sit here out of caution), and where provider-specific extras (reasoning options, extra body params) belong when an adapter needs them. @@ -328,7 +328,7 @@ interface Agent { } ``` -`AgentStatus` is `'idle' | 'running' | 'disposed'`. `AgentId` is a branded string. `AgentOptions` (`model?`) is merge-extensible — plugins add creation options by declaration merging; the persona is NOT an agent option but the `dsh-system-prompt` plugin's `persona` config, shared context-wide. The `agent/*` event taxonomy (lifecycle emits incl. `agent/session-start`, the serial `agent/pre-step` surface-mutation seam, and the `agent/prompt-submit`/`agent/request`/`agent/request-advice`/`agent/step-result`/`agent/turn-continuation` waterfalls) is in [architecture.md § Event taxonomy](../architecture.md#event-taxonomy); turn/step boundaries are durable `session/event` records, not `agent/*` emits. +`AgentStatus` is `'idle' | 'running' | 'disposed'`. `AgentId` is a branded string. `AgentOptions` (`model?`) is merge-extensible — plugins add creation options by declaration merging; the persona is NOT an agent option but the `dsh-system-prompt` plugin's `persona` config, shared context-wide. The `agent/*` event taxonomy (lifecycle emits incl. `agent/session-start`, the serial `agent/pre-step` surface-mutation seam, and the `agent/prompt-submit`/`agent/request`/`agent/session-prefix`/`agent/step-result`/`agent/turn-continuation` waterfalls) is in [architecture.md § Event taxonomy](../architecture.md#event-taxonomy); turn/step boundaries are durable `session/event` records, not `agent/*` emits. ## Interception decisions @@ -365,35 +365,7 @@ type ContinuationDecision = type SessionStartSource = 'startup' | 'resume' | 'clear' | 'compact' ``` -`agent/request-advice` returns a `RequestAdvice` — the request-only advice woven around the derived history for ONE request (advice in both senses: advisory content for the model, attached before/after the join point like AOP advice, never modifying the history itself). Concretely, per request: `before` messages sit in front of the ENTIRE derived history, directly after the system slot — the conventional home for session-stable openers like an AGENTS.md digest or a skills catalog, re-contributed identically every step so the provider prefix cache holds; `after` messages follow the history's last message, closing the request. Not a Decision union: the seam contributes content instead of vetoing, so the shape is the contribution itself; the loop records the non-empty arrays as the header's `messagePrefix`/`messageSuffix` ([the request envelope](#the-request-envelope-llmcallconfig-and-the-logged-header)), and `deriveMessages()` never returns them: - -```ts type-equiv -interface RequestAdvice { - /** Before-advice: messages placed ahead of the entire derived history. */ - before: Message[] - /** After-advice: messages placed after the derived history's last message. */ - after: Message[] -} -``` - -Listeners read the already-fixed request facts from a `RequestAdviceContext` (decide what to contribute from these; never mutate them): - -```ts type-equiv -interface RequestAdviceContext { - /** The rendered system prompt this request will carry. */ - system: string - /** The prompt assembly the system prompt was rendered from (sections + tools). */ - assembly: PromptAssembly - /** - * The boundary snapshot: the derived history this request will carry between - * `before` and `after`. A frozen snapshot — treat it as read-only; content - * for the NEXT request flows through the log channels. - */ - boundaryMessages: readonly Message[] - /** Aborts in-flight listener work when the step is torn down. */ - signal: AbortSignal -} -``` +`agent/session-prefix` composes the session prefix — a plain `Message[]`, no dedicated payload type. Fired ONCE per loop instance, lazily on its first request: the composed list is deep-frozen, recorded as the header's `messagePrefix` ([the request envelope](#the-request-envelope-llmcallconfig-and-the-logged-header)), and placed in front of the ENTIRE derived history on every request the instance sends — the home for session-stable openers like a skills catalog or an AGENTS.md digest, never returned by `deriveMessages()`. Reuse is structural, so the prefix cannot drift mid-session (resume = a new instance = a recompose); content that changes mid-session goes through the append-only history channels instead (`agent.inject()`, `tools/post-execute` / prompt-submit `additionalContext`). Not a Decision union: the seam contributes content instead of vetoing, so the shape is the contribution itself. ## `ToolDefinition` diff --git a/docs/core-data-structures/session.md b/docs/core-data-structures/session.md index e1f29882e5..1b12c3fc48 100644 --- a/docs/core-data-structures/session.md +++ b/docs/core-data-structures/session.md @@ -75,14 +75,14 @@ interface SessionEventMap { 'request/header': { header: EpochHeader; reason: RequestHeaderReason } /** * Amendment to the folded {@link EpochHeader}: system line-trim, name-keyed - * tools delta, whole replacement config, or whole replacement request-only - * message arrays (an EMPTY array encodes the transition to "none"). The + * tools delta, whole replacement config, or whole replacement session + * prefix (an EMPTY array encodes the transition to "none"). The * writer verifies `applyHeaderDelta(previous, delta)` reproduces the new * header exactly and falls back to a `'fallback'` `request/header` snapshot * when it cannot, so a logged delta ALWAYS round-trips. NOT a * {@link SurfaceEventType}. */ - 'request/header-delta': { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig; messagePrefix?: Message[]; messageSuffix?: Message[] } + 'request/header-delta': { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig; messagePrefix?: Message[] } } ``` @@ -99,7 +99,7 @@ export interface TodoItem { ### The request header events: `request/header` and `request/header-delta` -The request envelope — the `EpochHeader` (call config + rendered system prompt + assembled tool schemas + request-only messages) — is logged session state, so every conversation request is a pure function of the log (the reconstructability RFC). A `request/header` snapshot (reason `'initial' | 'resume' | 'fallback'`) anchors the fold at conversation birth, process boundaries, and delta-encoding fallbacks; `request/header-delta` events amend it mid-run. `foldRequestHeader(events)` reconstructs the header any request was built under; the writer round-trip-verifies every delta before logging it, so a well-formed log always folds. Neither is a `SurfaceEventType` — they produce no LLM message. +The request envelope — the `EpochHeader` (call config + rendered system prompt + assembled tool schemas + the session prefix) — is logged session state, so every conversation request is a pure function of the log (the reconstructability RFC). A `request/header` snapshot (reason `'initial' | 'resume' | 'fallback'`) anchors the fold at conversation birth, process boundaries, and delta-encoding fallbacks; `request/header-delta` events amend it mid-run. `foldRequestHeader(events)` reconstructs the header any request was built under; the writer round-trip-verifies every delta before logging it, so a well-formed log always folds. Neither is a `SurfaceEventType` — they produce no LLM message. ```ts type-equiv export interface EpochHeader { @@ -110,18 +110,17 @@ export interface EpochHeader { /** Assembled tool schemas; absent for a tool-less request. */ tools?: ToolSchema[] /** - * Request-only messages sent BEFORE the derived history (the - * `agent/request-advice` waterfall's `before` contributions). Not session - * history — `deriveMessages()` never returns them — so the header is their - * only durable record; absent when the request carried none. + * The session prefix: request-only messages sent BEFORE the entire derived + * history (the `agent/session-prefix` waterfall's product, composed once + * per loop instance and reused for every request it sends). Not session + * history — `deriveMessages()` never returns it — so the header is its + * only durable record; absent when the instance composed none. */ messagePrefix?: Message[] - /** Request-only messages sent AFTER the derived history; absent when none. */ - messageSuffix?: Message[] } ``` -Canonical form: an empty system prompt, an empty tool list, and empty request-only message arrays are ABSENT fields, matching how requests are built. `messagePrefix`/`messageSuffix` are the durable record of the `agent/request-advice` waterfall's contributions (the request is `messagePrefix + derived history + messageSuffix`); their deltas replace the array whole, an empty array encoding the transition back to absence. The other delta payloads (`SystemDelta` — a common-prefix/suffix line trim; `ToolsDelta` — name-keyed added/removed/changed) live beside the events in [`packages/core/session/src/types.ts`](../../packages/core/session/src/types.ts). +Canonical form: an empty system prompt, an empty tool list, and an empty session prefix are ABSENT fields, matching how requests are built. `messagePrefix` is the durable record of the `agent/session-prefix` waterfall's product (the request is `messagePrefix + derived history`); composed once per loop instance and anchored by that instance's snapshot, so the loop never produces a prefix delta in practice — the delta arm (whole-array replacement, an empty array encoding the transition back to absence) exists for codec totality. The other delta payloads (`SystemDelta` — a common-prefix/suffix line trim; `ToolsDelta` — name-keyed added/removed/changed) live beside the events in [`packages/core/session/src/types.ts`](../../packages/core/session/src/types.ts). ## `SessionEvent` — one log entry diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 02bad3d6c8..834dfc6d69 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -7,18 +7,18 @@ This matrix shows which packages dispatch each harness-owned event and which pac | Event | Mode | Declared in | Dispatchers | Listeners | | --- | --- | --- | --- | --- | -| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:313`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:320`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:512`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:398`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | -| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:411`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:338`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:435`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/request-advice` | `waterfall` | [`packages/core/agent/src/types.ts:477`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:353`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:329`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:487`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:500`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:265`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:272`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:455`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:350`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | +| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:363`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:290`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:387`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:420`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:305`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:281`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:430`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:443`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | diff --git a/docs/persistence-catalog.md b/docs/persistence-catalog.md index 5c0ddd2ca1..16ef2fb583 100644 --- a/docs/persistence-catalog.md +++ b/docs/persistence-catalog.md @@ -23,7 +23,7 @@ Raw stream chunk — token-level replay fidelity. Types: [StreamChunk](core-data-structures/llm-streaming.md) -Source: [`packages/core/session/src/types.ts:315`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:313`](../packages/core/session/src/types.ts) #### `assistant/message` — surface @@ -35,7 +35,7 @@ Assembled assistant message for one step (derived history uses this). Carries th Types: [ContentBlock](core-data-structures/core.md) · [TokenUsage](core-data-structures/llm-streaming.md) -Source: [`packages/core/session/src/types.ts:322`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:320`](../packages/core/session/src/types.ts) ### `compact/*` @@ -83,7 +83,7 @@ In-session context injection (file-change notices, subdir AGENTS.md, skill conte Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:313`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:311`](../packages/core/session/src/types.ts) ### `hook/*` @@ -119,7 +119,7 @@ A queued prompt an `agent/prompt-submit` listener VETOED — the durable record Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:307`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:305`](../packages/core/session/src/types.ts) ### `request/*` @@ -131,14 +131,14 @@ Full snapshot of the EpochHeader the NEXT request is built under, with the Reque 'request/header': { header: EpochHeader; reason: RequestHeaderReason } ``` -Source: [`packages/core/session/src/types.ts:367`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:365`](../packages/core/session/src/types.ts) #### `request/header-delta` — log-only -Amendment to the folded EpochHeader: at least one of a SystemDelta, a ToolsDelta, a whole replacement LlmCallConfig (four scalars — not worth diffing), or a whole replacement request-only message array (`messagePrefix`/`messageSuffix` — small advisory content, replaced whole; an EMPTY array encodes the transition to "none", mirroring the canonical form's absent field). Appended by the loop inside the step, before dispatch, when the header for this request differs from the fold of the log so far; the writer verifies `applyHeaderDelta(previous, delta)` reproduces the new header exactly and falls back to a `'fallback'` `request/header` snapshot when it cannot, so a logged delta ALWAYS round-trips. NOT a SurfaceEventType. +Amendment to the folded EpochHeader: at least one of a SystemDelta, a ToolsDelta, a whole replacement LlmCallConfig (four scalars — not worth diffing), or a whole replacement session prefix (`messagePrefix` — small advisory content, replaced whole; an EMPTY array encodes the transition to "none", mirroring the canonical form's absent field — the loop never produces one in practice: the prefix is composed once per instance and anchored by that instance's snapshot, so this arm exists for codec totality). Appended by the loop inside the step, before dispatch, when the header for this request differs from the fold of the log so far; the writer verifies `applyHeaderDelta(previous, delta)` reproduces the new header exactly and falls back to a `'fallback'` `request/header` snapshot when it cannot, so a logged delta ALWAYS round-trips. NOT a SurfaceEventType. ```ts persistence-catalog -'request/header-delta': { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig; messagePrefix?: Message[]; messageSuffix?: Message[] } +'request/header-delta': { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig; messagePrefix?: Message[] } ``` Source: [`packages/core/session/src/types.ts:382`](../packages/core/session/src/types.ts) @@ -155,7 +155,7 @@ Steering content injected between steps of a running turn. Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:340`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:338`](../packages/core/session/src/types.ts) ### `step/*` @@ -167,7 +167,7 @@ Closes step `step` of turn `turn`. 'step/end': { turn: number; step: number } ``` -Source: [`packages/core/session/src/types.ts:294`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:292`](../packages/core/session/src/types.ts) #### `step/start` — log-only @@ -177,7 +177,7 @@ Opens step `step` of turn `turn` — one model call plus the tool executions it 'step/start': { turn: number; step: number } ``` -Source: [`packages/core/session/src/types.ts:292`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:290`](../packages/core/session/src/types.ts) ### `todo/*` @@ -193,7 +193,7 @@ NOT a SurfaceEventType: it produces no LLM message and never reaches `deriveMess Types: [TodoItem](core-data-structures/session.md) -Source: [`packages/core/session/src/types.ts:354`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:352`](../packages/core/session/src/types.ts) ### `tool/*` @@ -207,7 +207,7 @@ The model requested one tool invocation: `name` with the raw `arguments` JSON st Types: [CallId](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:328`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:326`](../packages/core/session/src/types.ts) #### `tool/result` — surface @@ -219,7 +219,7 @@ A completed tool call's model-facing result, plus an optional tool-private `meta Types: [CallId](core-data-structures/core.md) · [ContentBlock](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:338`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:336`](../packages/core/session/src/types.ts) ### `turn/*` @@ -233,7 +233,7 @@ Closes turn `turn` with the TurnEndReason that ended it. The loop fires the awai Types: [TurnEndReason](core-data-structures/session.md) -Source: [`packages/core/session/src/types.ts:290`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:288`](../packages/core/session/src/types.ts) #### `turn/start` — log-only @@ -245,7 +245,7 @@ Opens turn `turn`. `trigger` records what started it — a drained message batch Types: [TurnTrigger](core-data-structures/session.md) -Source: [`packages/core/session/src/types.ts:284`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:282`](../packages/core/session/src/types.ts) ### `user/*` @@ -259,4 +259,4 @@ A user-visible prompt (queued message drained at turn start). Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:296`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:294`](../packages/core/session/src/types.ts) diff --git a/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md b/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md index e2bb16438a..20bd1e3005 100644 --- a/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md +++ b/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md @@ -20,13 +20,13 @@ Prefix-cache stability is corollary #1, not the headline: an append-only log pro **Messages.** `Session.deriveMessages()` is cached: each surface node is projected exactly once, when first seen, through the public per-node function `deriveEventMessage(event)`; a surface rewrite (a compaction `replace` — `SurfaceManager.replaceGeneration`) rebuilds. Callers get a fresh array per call over shared, deep-frozen messages: mutating logged history through a projection is unrepresentable (it throws), replacing the old clone-per-call isolation. External reconstructors fold the same public function over a log prefix, so no two paths can disagree. -**The header.** The request's non-history half — `EpochHeader`: call config (`LlmCallConfig`: model + sampling scalars), rendered system prompt, assembled tool schemas, and any request-only messages (`messagePrefix`/`messageSuffix`, below) — is logged session state, in canonical form (empty system/tools/message arrays ≡ absent). Two log-only, turn-enclosed events in dsh-session carry it: `request/header`, a full snapshot with reason `'initial' | 'resume' | 'fallback'`, and `request/header-delta`, an amendment (`SystemDelta`: a common-prefix/suffix line trim; `ToolsDelta`: name-keyed added/removed/changed; `config`: replaced whole; `messagePrefix`/`messageSuffix`: replaced whole, an empty array encoding the transition to absence). The pure trio `foldRequestHeader` / `diffHeader` / `applyHeaderDelta` reconstructs; the live session tracks the fold with the same lazy cursor as the message cache. Snapshots anchor the fold where a fold needs anchors — conversation birth and process boundaries — and each loop instance appends one on its first request (`'initial'` when the log has none, `'resume'` otherwise, even when nothing changed: the boundary itself is a recorded fact, and cross-restart drift becomes attributable while an unchanged header resumes byte-identical). Deltas are an encoding optimization with a safety valve, never a correctness dependency: the writer verifies `applyHeaderDelta(prev, delta)` reproduces the new header exactly and records a `'fallback'` snapshot when the encoding cannot express a change (a pure tool reordering), so a well-formed log always folds. +**The header.** The request's non-history half — `EpochHeader`: call config (`LlmCallConfig`: model + sampling scalars), rendered system prompt, assembled tool schemas, and the session prefix (`messagePrefix`, below) — is logged session state, in canonical form (empty system/tools/prefix ≡ absent). Two log-only, turn-enclosed events in dsh-session carry it: `request/header`, a full snapshot with reason `'initial' | 'resume' | 'fallback'`, and `request/header-delta`, an amendment (`SystemDelta`: a common-prefix/suffix line trim; `ToolsDelta`: name-keyed added/removed/changed; `config`: replaced whole; `messagePrefix`: replaced whole, an empty array encoding the transition to absence — an arm the loop never exercises in practice, kept for codec totality). The pure trio `foldRequestHeader` / `diffHeader` / `applyHeaderDelta` reconstructs; the live session tracks the fold with the same lazy cursor as the message cache. Snapshots anchor the fold where a fold needs anchors — conversation birth and process boundaries — and each loop instance appends one on its first request (`'initial'` when the log has none, `'resume'` otherwise, even when nothing changed: the boundary itself is a recorded fact, and cross-restart drift becomes attributable while an unchanged header resumes byte-identical). Deltas are an encoding optimization with a safety valve, never a correctness dependency: the writer verifies `applyHeaderDelta(prev, delta)` reproduces the new header exactly and records a `'fallback'` snapshot when the encoding cannot express a change (a pure tool reordering), so a well-formed log always folds. -**The loop, transmission-stateless.** Per step: render assembly (every step — value comparison needs no change-signal discipline, and a section that varies per step surfaces as a *logged* header event per step instead of a silent bust) → `agent/pre-step` (compaction's surface mutations land before derivation) → **messages snapshot, then `step/start` appended as the next operation in the same synchronous frame** → seed the call config (first request of the instance: from `AgentOptions`, so explicit options always beat the logged baseline — fork model-overrides and resume reconfiguration stay correct; afterwards: from the folded header) → the `agent/request` waterfall, re-typed `(agent, turn, step, config: LlmCallConfig, next) → LlmCallConfig` — a frozen seed and a returned replacement are ALL a listener shapes; durable content flows through the log channels (`inject()`, steering, prompt-submit `additionalContext`, sections via `system-prompt/assemble`) — → the `agent/request-advice` waterfall — request-ONLY `before`/`after` messages framing the boundary snapshot (a frozen empty seed, contributions returned as an extension of `next()`; the per-request advisory channel: content the model must see now that must NOT become history — a skills catalog, an environment reminder) — → the header event the request owes the log, carrying those contributions as `messagePrefix`/`messageSuffix` (no session event carries them, so the header is their only durable record) → build `GenerateOptions` from `messagePrefix + snapshot + messageSuffix` + header, deep-freeze (`deepFreeze` exempts the `AbortSignal`, the one live control channel — freezing one breaks `AbortController.abort()`), dispatch. The loop's only in-process bookkeeping is one boolean: whether this instance has logged its anchoring snapshot. +**The loop, transmission-stateless.** Per step: render assembly (every step — value comparison needs no change-signal discipline, and a section that varies per step surfaces as a *logged* header event per step instead of a silent bust) → `agent/pre-step` (compaction's surface mutations land before derivation) → **messages snapshot, then `step/start` appended as the next operation in the same synchronous frame** → seed the call config (first request of the instance: from `AgentOptions`, so explicit options always beat the logged baseline — fork model-overrides and resume reconfiguration stay correct; afterwards: from the folded header) → the `agent/request` waterfall, re-typed `(agent, turn, step, config: LlmCallConfig, next) → LlmCallConfig` — a frozen seed and a returned replacement are ALL a listener shapes; durable content flows through the log channels (`inject()`, steering, prompt-submit `additionalContext`, sections via `system-prompt/assemble`) — → on the instance's FIRST request only, the `agent/session-prefix` waterfall — request-ONLY messages fronting the entire derived history (a frozen empty seed, contributions returned as an extension of `next()`; the home for session-stable openers that must NOT become history — a skills catalog, an AGENTS.md digest), deep-frozen and cached on the instance so reuse is structural and the prefix cannot drift mid-session — → the header event the request owes the log, carrying the prefix as `messagePrefix` (no session event carries it, so the header is its only durable record; resume = a new instance = a recompose, anchored by its `'resume'` snapshot) → build `GenerateOptions` from `messagePrefix + snapshot` + header, deep-freeze (`deepFreeze` exempts the `AbortSignal`, the one live control channel — freezing one breaks `AbortController.abort()`), dispatch. The loop's per-instance bookkeeping is one boolean plus the cached prefix: whether this instance has logged its anchoring snapshot, and what it composed. **The reconstruction boundary is `step/start`, unconditionally.** A step's messages are the derivation over `events[0..stepStartSeq)`. Because the snapshot precedes the `step/start` append in the same synchronous frame, nothing can enter this request past the boundary: an `agent.inject()` from an `agent/request` listener (or any concurrent task, or a `session/event` listener firing on `step/start` itself) lands in the log after the boundary and joins the NEXT request. For waterfall-window appends this matches the prior loop (it also derived before its waterfall); for a synchronous `step/start` listener it is a deliberate change — such a listener could previously reach the current request — and `agent/pre-step` is the sanctioned seam for content that must affect the CURRENT request. A step's header for reconstruction is the fold after its own `request/header*` event (which sits between its `step/start` and first response event) or the fold carried forward. -**Enforcement.** Dev-mode ([dsh-invariants](../../../../packages/support/invariants/src/index.ts)), on `llm/stream`: a frozen request with a live `sessionId` — the loop-built marker; hand-built one-shots are unfrozen and skipped — must carry messages deep-equal to the folded header's `messagePrefix`, then the boundary derivation, then its `messageSuffix` — the derivation rebuilt through a FRESH `Session` over `events[0..stepStartSeq)` so the live cache cannot vouch for itself — and header fields equal to `foldRequestHeader` over the log. There is no divergence allowance and nothing to allow: no seam can put unlogged content into a request — the `agent/request-advice` seam's contributions enter only because the header event records them first. `prepend: true` only defends against the replay adapter's short-circuit (an append-registered listener); two prepended listeners have no defined mutual order in cordis, so correctness rests on the seq-bounded fold, never on listener timing. Measurement stays lean: the with-key e2e ([request-cache.e2e.ts](../../../../packages/core/agent-loop/tests/request-cache.e2e.ts)) proves `usage.cacheReadTokens > 0` on every request after the first against the live API, and per-step usage in the log is the production observable — a header event or compaction shows up as a cache-read collapse on the next step. +**Enforcement.** Dev-mode ([dsh-invariants](../../../../packages/support/invariants/src/index.ts)), on `llm/stream`: a frozen request with a live `sessionId` — the loop-built marker; hand-built one-shots are unfrozen and skipped — must carry messages deep-equal to the folded header's `messagePrefix` followed by the boundary derivation — the derivation rebuilt through a FRESH `Session` over `events[0..stepStartSeq)` so the live cache cannot vouch for itself — and header fields equal to `foldRequestHeader` over the log. There is no divergence allowance and nothing to allow: no seam can put unlogged content into a request — the `agent/session-prefix` seam's product enters only because the header event records it first. `prepend: true` only defends against the replay adapter's short-circuit (an append-registered listener); two prepended listeners have no defined mutual order in cordis, so correctness rests on the seq-bounded fold, never on listener timing. Measurement stays lean: the with-key e2e ([request-cache.e2e.ts](../../../../packages/core/agent-loop/tests/request-cache.e2e.ts)) proves `usage.cacheReadTokens > 0` on every request after the first against the live API, and per-step usage in the log is the production observable — a header event or compaction shows up as a cache-read collapse on the next step. ### The MiniCode shape: adopted, with the provenance arrow inverted @@ -44,7 +44,7 @@ What survives from `LLMClient`: the conversation is maintained, not rebuilt — ## Consequences - A request that is not explained by the log cannot be constructed by accident — not by the loop, not by a listener; mutating a built request throws; every header change is a durable, diffable log event. -- Choosing between the advisory channels is a change-frequency cost decision, and the seam does not hide it: an `agent/request-advice` contribution rides the request's uncached tail and is re-tokenized at full price on every request it appears in (a `before` contribution instead extends the cacheable prefix at zero marginal cost while stable, but a mid-session change invalidates the provider cache for the entire history after it), whereas an `inject()`ed `context/message` is paid once and prefix-cached thereafter at the price of accumulating durably in history and the log. Route session-frozen content to `before`, low-frequency change notices to `inject()`, and reserve `after` for small, frequently refreshed state snapshots where a durable chain of stale copies would bloat the log and mislead the model. +- Choosing between the advisory channels is a change-frequency decision, and the design makes the stable one structural: an `agent/session-prefix` contribution is composed once per loop instance and reused verbatim, so it extends the cacheable prefix at zero marginal cost and CANNOT bust the provider cache mid-session; content that changes mid-session flows through the append-only history channels — `agent.inject()`, a `tools/post-execute` decision's `additionalContext`, prompt-submit `additionalContext` — each a durable `context/message` paid once and prefix-cached thereafter, at the price of accumulating in history and the log. Route session-frozen openers to the prefix and change notices to the history channels; a per-step request-only tail slot was deliberately dropped (no consumer, and a durable append covers every current update pattern). - What still costs full price at the provider is inherent and logged: compaction (its `compact/*` events and replace node), a real prompt/tool change (`request/header-delta`), a config switch (ditto), a process boundary with drift (`'resume'` snapshot differing from its predecessor). The provider's own reasoning-content exclusion is managed server-side. - The `step/start`-listener behavior change (above) is the one observable semantics change for plugins; `agent/pre-step` is the current-request seam. - Tool-result trimming (planned) needs no new mechanism: a logged single-node surface replace (`start === end`) carrying a trimmed `tool/result` under the same `callId` — compaction-family, replay-correct, cache-bust batched by the same pressure logic. diff --git a/packages/core/agent-loop/README.md b/packages/core/agent-loop/README.md index ebdcc7d91a..d4c1c50466 100644 --- a/packages/core/agent-loop/README.md +++ b/packages/core/agent-loop/README.md @@ -59,10 +59,10 @@ forever: boundary = session.deriveMessages() ⟵ reconstruction boundary: same sync frame, session('step/start') strictly before step/start config = waterfall agent/request ⟵ frozen seed; return a replacement to switch - reqMsgs = waterfall agent/request-advice ⟵ request-only before/after messages; recorded - on the header, never session history + prefix ??= waterfall agent/session-prefix ⟵ once per instance (first request): frozen + session prefix; on the header, never history session('request/header'[-delta]) ⟵ the header event this request owes the log - stream llm.stream(freeze({header..., messages: before+boundary+after})) → session('assistant/chunk') + stream llm.stream(freeze({header..., messages: prefix+boundary})) → session('assistant/chunk') message = waterfall agent/step-result session('assistant/message') each tool-call: session('tool/call') @@ -86,7 +86,7 @@ Cancellation: `agent.cancel()` is the single public stop primitive — it clears ### What is NOT here Everything that goes beyond "call the model, run the tools, repeat" belongs to plugins listening on the event taxonomy: -- Hooks: `agent/session-start`, `agent/prompt-submit`, `agent/pre-step`, `agent/request`, `agent/request-advice`, `agent/step-result`, `tools/pre-execute`, `tools/post-execute`, `agent/turn-continuation` +- Hooks: `agent/session-start`, `agent/prompt-submit`, `agent/pre-step`, `agent/request`, `agent/session-prefix`, `agent/step-result`, `tools/pre-execute`, `tools/post-execute`, `agent/turn-continuation` - Compaction: `agent/pre-step` - Sandbox, permission, plan mode: `tools/pre-execute` (deny/ask gate), `tools/post-execute` - Sub-agents: implemented outside the loop as `ctx.subagents` providers; in-process providers use `ctx.agents.create()` and owned `AgentHandle` teardown, while child streaming/progress and background/poll collection remain deferred. diff --git a/packages/core/agent-loop/src/loop.ts b/packages/core/agent-loop/src/loop.ts index 9170de4836..753da50db7 100644 --- a/packages/core/agent-loop/src/loop.ts +++ b/packages/core/agent-loop/src/loop.ts @@ -10,7 +10,7 @@ import type { Context } from 'cordis' import type { FinishReason, GenerateOptions, LlmCallConfig, Message } from '@deepseek-ai/dsh-llm' import { BlockAssembler, HarnessError, deepFreeze } from '@deepseek-ai/dsh-llm' -import type { ContinuationDecision, HookContext, PromptDecision, RequestAdvice } from '@deepseek-ai/dsh-agent' +import type { ContinuationDecision, HookContext, PromptDecision } from '@deepseek-ai/dsh-agent' import { canonicalHeader } from '@deepseek-ai/dsh-session' import type { Session, TurnEndReason, TurnTrigger } from '@deepseek-ai/dsh-session' import { createTransmissionLog, recordRequestHeader } from './request-log.ts' @@ -161,11 +161,12 @@ export interface LoopHandle { * boundary = session.deriveMessages() ⟵ the reconstruction boundary: snapshot in the * session('step/start') same sync frame, strictly before step/start * config = waterfall agent/request(config) ⟵ frozen seed; a returned replacement switches - * advice = waterfall agent/request-advice ⟵ request-only before/after advice; logged on - * the header, never session history + * prefix ??= waterfall agent/session-prefix ⟵ once per loop instance (first request): + * frozen session prefix; logged on the header, + * never session history * session('request/header'|'request/header-delta') ⟵ the header event this request owes the * log (initial/resume anchor, delta, fallback) - * req = freeze({header..., messages: before+boundary+after, sessionId, signal}) + * req = freeze({header..., messages: prefix+boundary, sessionId, signal}) * stream ctx.llm.stream(req) ⟵ waterfall llm/stream (raw chunks, frozen req) * session('assistant/chunk') * msg = waterfall agent/step-result ⟵ BEFORE the log append, so the @@ -676,8 +677,9 @@ function drainSteering(agent: ReactLoopAgent, turn: number): boolean { } /** One step: build the request from the boundary snapshot + the step's - * header → collect request-only messages → log the header event the request - * owes → stream model → record → execute tools. The caller assembles the + * header → compose the session prefix if this instance has none yet → log + * the header event the request owes → stream model → record → execute + * tools. The caller assembles the * system prompt, fires the `agent/pre-step` seam, snapshots the derivation, * and opens the step BEFORE calling this, so `boundaryMessages` is exactly * the surface prefix at step/start and already reflects any compaction. */ @@ -720,47 +722,47 @@ async function runStep( throw new Error(`agent "${agent.id}" has no model: set AgentOptions.model or supply one via the agent/request waterfall`) } - // Collect the request-ONLY advice: `before` messages go in front of the - // entire boundary snapshot, `after` messages follow its last message. Advice - // is not session history — the header event below is its only durable - // record (EpochHeader.messagePrefix/messageSuffix), which keeps the request - // a pure function of the log. The frozen empty seed serves both the - // listener chain and the no-listener fallback: a contribution is a RETURNED - // extension of `await next()`, never an in-place push. The context gets a - // frozen COPY of the boundary (the request is built from the internal - // snapshot), so a listener cannot smuggle unlogged content into the request - // by mutating what it was shown. Fired AFTER the boundary snapshot, so a - // listener's session append lands past the boundary and joins the NEXT - // request — the same window rule as the `agent/request` waterfall. - const emptyRequestAdvice: RequestAdvice = deepFreeze({ before: [], after: [] }) - const requestAdviceBoundary = deepFreeze([...boundaryMessages]) - const requestAdvice = await ctx.waterfall( - 'agent/request-advice', agent, turn, step, emptyRequestAdvice, - { system, assembly, boundaryMessages: requestAdviceBoundary, signal }, - () => Promise.resolve(emptyRequestAdvice), - ) + // Compose the session prefix ONCE per loop instance, lazily on its first + // request-building step: request-only messages placed in front of the + // ENTIRE derived history on every request this instance sends. The result + // is deep-cloned (decoupled from listener-held references), deep-frozen, + // and cached on the transmission bookkeeping, so reuse is structural — the + // prefix cannot change mid-session and the provider prefix cache holds by + // construction (resume = a new instance = a recompose, anchored by its + // 'resume' snapshot). The prefix is not session history — the header event + // below is its only durable record (EpochHeader.messagePrefix), which + // keeps the request a pure function of the log. The frozen empty seed + // serves both the listener chain and the no-listener fallback: a + // contribution is a RETURNED extension of `await next()`, never an + // in-place push. + if (transmission.sessionPrefix === undefined) { + const emptyPrefix: Message[] = deepFreeze([]) + transmission.sessionPrefix = deepFreeze(structuredClone(await ctx.waterfall( + 'agent/session-prefix', agent, emptyPrefix, signal, + () => Promise.resolve(emptyPrefix), + ))) + } + const sessionPrefix = transmission.sessionPrefix // The request header (the log's request/header* vocabulary): canonical form, // recorded before dispatch so the log always explains the request — - // including the request-only advice, which no other event carries. + // including the session prefix, which no other event carries. const header = canonicalHeader({ config, ...system ? { system } : {}, ...assembly.tools.length > 0 ? { tools: assembly.tools } : {}, - ...requestAdvice.before.length > 0 ? { messagePrefix: requestAdvice.before } : {}, - ...requestAdvice.after.length > 0 ? { messageSuffix: requestAdvice.after } : {}, + ...sessionPrefix.length > 0 ? { messagePrefix: sessionPrefix } : {}, }) recordRequestHeader(session, transmission, header) // Build and freeze: the request is a pure function of (boundary snapshot, // logged header) — llm/stream listeners and adapters read it, mutation // throws. sessionId + frozen is the loop-built marker the dev invariant - // keys on. Message order: header.messagePrefix, then the boundary snapshot, - // then header.messageSuffix — the reconstruction equation the invariant - // recomputes. + // keys on. Message order: header.messagePrefix, then the boundary + // snapshot — the reconstruction equation the invariant recomputes. const request: GenerateOptions = deepFreeze({ model: header.config.model, - messages: [...header.messagePrefix ?? [], ...boundaryMessages, ...header.messageSuffix ?? []], + messages: [...header.messagePrefix ?? [], ...boundaryMessages], ...header.system !== undefined ? { system: header.system } : {}, ...header.tools !== undefined ? { tools: header.tools } : {}, ...header.config.temperature !== undefined ? { temperature: header.config.temperature } : {}, diff --git a/packages/core/agent-loop/src/request-log.ts b/packages/core/agent-loop/src/request-log.ts index 90f47068fa..d2763f5c2a 100644 --- a/packages/core/agent-loop/src/request-log.ts +++ b/packages/core/agent-loop/src/request-log.ts @@ -12,11 +12,20 @@ import { diffHeader, headerEquals, applyHeaderDelta } from '@deepseek-ai/dsh-session' import type { EpochHeader, Session } from '@deepseek-ai/dsh-session' +import type { Message } from '@deepseek-ai/dsh-llm' /** Per-loop-instance bookkeeping: whether THIS instance has logged a header yet. */ export interface TransmissionLog { /** True once this loop instance appended its anchoring `request/header` snapshot. */ loggedHeader: boolean + /** + * The instance's composed session prefix (the `agent/session-prefix` + * waterfall's deep-frozen product), cached on the instance's first + * request-building step and reused verbatim for every request it sends — + * the structural guarantee that the prefix never changes mid-session. + * `undefined` until composed. + */ + sessionPrefix?: Message[] } /** @@ -61,7 +70,7 @@ export function recordRequestHeader(session: Session, state: TransmissionLog, he const baseline = session.requestHeader()! if (headerEquals(baseline, header)) return const delta = diffHeader(baseline, header) - /* v8 ignore next -- headerEquals false ⟹ diffHeader defined: both compare the same three parts */ + /* v8 ignore next -- headerEquals false ⟹ diffHeader defined: both compare the same four parts */ if (delta === undefined) return if (headerEquals(applyHeaderDelta(baseline, delta), header)) { session.append('request/header-delta', delta) diff --git a/packages/core/agent-loop/tests/interception.spec.ts b/packages/core/agent-loop/tests/interception.spec.ts index f980b2337c..c3f301afc7 100644 --- a/packages/core/agent-loop/tests/interception.spec.ts +++ b/packages/core/agent-loop/tests/interception.spec.ts @@ -1,14 +1,13 @@ import { describe, expect, it } from 'vitest' import { Context } from 'cordis' import LlmService, { CallId, type Message } from '@deepseek-ai/dsh-llm' -import SessionStore, { foldRequestHeader, type SessionEvent, type TurnEndReason } from '@deepseek-ai/dsh-session' +import SessionStore, { type SessionEvent, type TurnEndReason } from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry, { defineTool, type PostToolDecision, type PreToolDecision } from '@deepseek-ai/dsh-tools' import AgentRegistry, { AgentId, type ContinuationDecision, type PromptDecision, - type RequestAdvice, type SessionStartSource, } from '@deepseek-ai/dsh-agent' import AgentLoop, { type ReactLoopAgent } from '@deepseek-ai/dsh-agent-loop' @@ -311,58 +310,58 @@ describe('agent/session-start', () => { }) }) -describe('agent/request-advice (RequestAdvice)', () => { - it('frames the derived history: before precedes it, after follows it, and the header records both', async () => { - const adapter = new MockAdapter([textResponse('ok')]) +describe('agent/session-prefix', () => { + it('composes once per loop instance and fronts every request; the header records it; history stays untouched', async () => { + const adapter = new MockAdapter([ + toolCallResponse('c1', 'echo', { text: 'ping' }), + textResponse('done'), + textResponse('again'), + ]) const ctx = await harness(adapter) + ctx.tools.register(defineTool({ + name: 'echo', description: 'echo', parameters: { text: { type: 'string' } }, + async execute(args) { return [{ type: 'text', text: String(args.text) }] }, + })) const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) const reminder: Message = { role: 'user', content: [{ type: 'text', text: 'catalog' }] } - const trailer: Message = { role: 'user', content: [{ type: 'text', text: 'trailing note' }] } - ctx.on('agent/request-advice', async (_agent, _turn, _step, _messages, _context, next): Promise => { - const result = await next() - return { before: [...result.before, reminder], after: [...result.after, trailer] } + let composed = 0 + ctx.on('agent/session-prefix', async (_agent, _prefix, _signal, next): Promise => { + composed += 1 + return [...await next(), reminder] }) - send(agent, 'hi') + send(agent, 'go') + await waitForIdle(ctx, agent) + send(agent, 'next turn') await waitForIdle(ctx, agent) - // The request carries before + derived history + after, in that order… - const request = adapter.requests[0]! - expect(request.messages).toEqual([ - reminder, - { role: 'user', content: [{ type: 'text', text: 'hi' }] }, - trailer, - ]) - // …the header event is their durable record… - const headerEvent = events(agent).find(e => e.type === 'request/header') - expect(headerEvent?.type === 'request/header' && headerEvent.data.header.messagePrefix).toEqual([reminder]) - expect(headerEvent?.type === 'request/header' && headerEvent.data.header.messageSuffix).toEqual([trailer]) - // …and they never become session history. - expect(agent.session.deriveMessages()).toEqual([ - { role: 'user', content: [{ type: 'text', text: 'hi' }] }, - { role: 'assistant', content: [{ type: 'text', text: 'ok' }] }, - ]) + // Three requests (two turns), ONE composition: the frozen product is + // reused verbatim, so the prefix cannot drift mid-session. + expect(adapter.requests).toHaveLength(3) + expect(composed).toBe(1) + for (const request of adapter.requests) { + expect(request.messages[0]).toEqual(reminder) + } + // The anchoring snapshot is the prefix's durable record — and the ONLY + // header event: reuse means no request/header-delta ever. + const headerEvents = events(agent).filter(e => e.type === 'request/header' || e.type === 'request/header-delta') + expect(headerEvents).toHaveLength(1) + expect(headerEvents[0]?.type === 'request/header' && headerEvents[0].data.header.messagePrefix).toEqual([reminder]) + // Never session history: the derivation starts at the real user prompt. + expect(agent.session.deriveMessages()[0]).toEqual({ role: 'user', content: [{ type: 'text', text: 'go' }] }) }) - it('contributions compose across listeners and see the read-only request facts', async () => { + it('contributions compose across listeners in registration order', async () => { const adapter = new MockAdapter([textResponse('ok')]) const ctx = await harness(adapter) const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) - const seen: { system: string; boundaryRoles: string[]; sectionCount: number }[] = [] - ctx.on('agent/request-advice', async (_agent, _turn, _step, _messages, context, next): Promise => { - const result = await next() - seen.push({ - system: context.system, - boundaryRoles: context.boundaryMessages.map(m => m.role), - sectionCount: context.assembly.sections.length, - }) - return { before: [{ role: 'user', content: [{ type: 'text', text: 'first' }] }, ...result.before], after: result.after } + ctx.on('agent/session-prefix', async (_agent, _prefix, _signal, next): Promise => { + return [{ role: 'user', content: [{ type: 'text', text: 'first' }] }, ...await next()] }) - ctx.on('agent/request-advice', async (_agent, _turn, _step, _messages, _context, next): Promise => { - const result = await next() - return { before: [...result.before, { role: 'user', content: [{ type: 'text', text: 'second' }] }], after: result.after } + ctx.on('agent/session-prefix', async (_agent, _prefix, _signal, next): Promise => { + return [...await next(), { role: 'user', content: [{ type: 'text', text: 'second' }] }] }) send(agent, 'hi') @@ -372,27 +371,21 @@ describe('agent/request-advice (RequestAdvice)', () => { // out (waterfall), so its prepend lands first. const texts = adapter.requests[0]!.messages.map(m => m.content[0]?.type === 'text' ? m.content[0].text : '') expect(texts).toEqual(['first', 'second', 'hi']) - // The context carried the request facts: the rendered system prompt, the - // boundary snapshot (exactly the drained user prompt), and the assembly. - expect(seen).toHaveLength(1) - expect(seen[0]!.boundaryRoles).toEqual(['user']) - expect(typeof seen[0]!.system).toBe('string') }) - it('with no contributions the header omits both fields and the request is the bare derivation', async () => { + it('with no contributions the header omits messagePrefix and the request is the bare derivation', async () => { const adapter = new MockAdapter([textResponse('ok')]) const ctx = await harness(adapter) const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) // A listener that delegates without contributing — the canonical no-op. - ctx.on('agent/request-advice', async (_agent, _turn, _step, _messages, _context, next) => next()) + ctx.on('agent/session-prefix', async (_agent, _prefix, _signal, next) => next()) send(agent, 'hi') await waitForIdle(ctx, agent) const headerEvent = events(agent).find(e => e.type === 'request/header') expect(headerEvent?.type === 'request/header' && 'messagePrefix' in headerEvent.data.header).toBe(false) - expect(headerEvent?.type === 'request/header' && 'messageSuffix' in headerEvent.data.header).toBe(false) expect(adapter.requests[0]!.messages).toEqual([{ role: 'user', content: [{ type: 'text', text: 'hi' }] }]) }) @@ -402,9 +395,9 @@ describe('agent/request-advice (RequestAdvice)', () => { const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) let mutationError: unknown - ctx.on('agent/request-advice', async (_agent, _turn, _step, messages, _context, next): Promise => { + ctx.on('agent/session-prefix', async (_agent, prefix, _signal, next): Promise => { try { - messages.before.push({ role: 'user', content: [{ type: 'text', text: 'smuggled' }] }) + prefix.push({ role: 'user', content: [{ type: 'text', text: 'smuggled' }] }) } catch (error: unknown) { mutationError = error } @@ -418,30 +411,7 @@ describe('agent/request-advice (RequestAdvice)', () => { expect(adapter.requests[0]!.messages).toEqual([{ role: 'user', content: [{ type: 'text', text: 'hi' }] }]) }) - it('the read-only boundary context rejects in-place mutation before the request is built', async () => { - const adapter = new MockAdapter([textResponse('ok')]) - const ctx = await harness(adapter) - const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) - - let mutationError: unknown - ctx.on('agent/request-advice', async (_agent, _turn, _step, _messages, context, next): Promise => { - try { - const mutableBoundary = context.boundaryMessages as Message[] - mutableBoundary.push({ role: 'user', content: [{ type: 'text', text: 'smuggled' }] }) - } catch (error: unknown) { - mutationError = error - } - return next() - }) - - send(agent, 'hi') - await waitForIdle(ctx, agent) - - expect(mutationError).toBeInstanceOf(TypeError) - expect(adapter.requests[0]!.messages).toEqual([{ role: 'user', content: [{ type: 'text', text: 'hi' }] }]) - }) - - it('a per-step contribution change is logged as a header delta, so every request stays reconstructable', async () => { + it('mutating a listener-held reference after composition cannot alter later requests (the cache is a frozen clone)', async () => { const adapter = new MockAdapter([ toolCallResponse('c1', 'echo', { text: 'ping' }), textResponse('done'), @@ -453,26 +423,21 @@ describe('agent/request-advice (RequestAdvice)', () => { })) const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) - let step = 0 - ctx.on('agent/request-advice', async (_agent, _turn, _step, _messages, _context, next): Promise => { - const result = await next() - step += 1 - return { before: [...result.before, { role: 'user', content: [{ type: 'text', text: `reminder v${step}` }] }], after: result.after } - }) + const held: Message = { role: 'user', content: [{ type: 'text', text: 'v1' }] } + ctx.on('agent/session-prefix', async (_agent, _prefix, _signal, next): Promise => [...await next(), held]) send(agent, 'go') await waitForIdle(ctx, agent) - expect(adapter.requests[0]!.messages[0]).toEqual({ role: 'user', content: [{ type: 'text', text: 'reminder v1' }] }) - expect(adapter.requests[1]!.messages[0]).toEqual({ role: 'user', content: [{ type: 'text', text: 'reminder v2' }] }) - // Step 2's changed prefix rides a request/header-delta whose fold matches - // what the second request actually sent. - const delta = events(agent).find(e => e.type === 'request/header-delta') - expect(delta?.type === 'request/header-delta' && delta.data.messagePrefix).toEqual([{ role: 'user', content: [{ type: 'text', text: 'reminder v2' }] }]) - expect(foldRequestHeader(agent.session.events)?.messagePrefix).toEqual([{ role: 'user', content: [{ type: 'text', text: 'reminder v2' }] }]) + // The listener mutates the object it contributed AFTER composition; the + // cached prefix is a deep-frozen clone, so step 2's request is unchanged. + held.content = [{ type: 'text', text: 'v2' }] + expect(adapter.requests[1]!.messages[0]).toEqual({ role: 'user', content: [{ type: 'text', text: 'v1' }] }) + expect(events(agent).filter(e => e.type === 'request/header-delta')).toHaveLength(0) }) }) + describe('agent/turn-continuation (ContinuationDecision)', () => { it('a continue decision with a reason records next-step steering in the same turn', async () => { const adapter = new MockAdapter([textResponse('step 1 no tools'), textResponse('step 2')]) diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index 0500223369..8a811048c6 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -45,7 +45,7 @@ Turn and step boundaries are NOT mirrored as `agent/*` emits: a consumer that ne - `agent/prompt-submit` — decide what happens to one drained queued message before it becomes a `user/message`: `PromptDecision` = `allow` (optionally rewriting the prompt `content` or attaching `additionalContext`) or `block` (drop it; a batch whose every prompt is blocked opens a zero-step turn that ends `rejected`). Maps onto Claude Code's `UserPromptSubmit`. - `agent/pre-step` (serial) — mutate the session surface before the step opens and history is derived (compaction). Fires after `turn/start` and before `step/start`, so a listener's appended events land outside the step. - `agent/request` — shape the call config before the model call: a frozen `LlmCallConfig` seed in, a replacement out (model switching, sampling overrides). Content is not shapeable here — every request is a pure function of the session log ([reconstructability RFC](../../../docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)); the loop logs whatever config the request actually uses as a `request/header*` event -- `agent/request-advice` — contribute request-ONLY messages around the derived history: a frozen empty `RequestAdvice` seed in, an extension of `await next()` out (`before` messages precede the boundary snapshot in the request, `after` messages follow it). For per-request advisory context the model must see now but that must not become durable history; the loop records the contributions on the request's `request/header*` event (`EpochHeader.messagePrefix`/`messageSuffix`), so `deriveMessages()` stays untouched and the request stays reconstructable. Cost model: contributions ride the request's uncached tail and are re-paid at full price on every request they appear in — put session-frozen content in `before` (cacheable prefix; a mid-session change busts the cache for everything after it), route low-frequency change notices through `agent.inject()` instead (paid once, prefix-cached thereafter), and reserve `after` for small, frequently refreshed state snapshots +- `agent/session-prefix` — compose the session prefix: request-only messages placed in front of the ENTIRE derived history on every request. Fired ONCE per loop instance, lazily on its first request; the composed result is deep-frozen, recorded as `EpochHeader.messagePrefix` on the anchoring `request/header` snapshot, and reused verbatim afterwards — the prefix cannot change mid-session, so the provider prefix cache holds by construction (resume = a new instance = a recompose, attributably anchored by its `'resume'` snapshot). The home for session-stable openers that must not become durable history (a skills catalog, an AGENTS.md digest); `deriveMessages()` never returns it. Content that CHANGES mid-session belongs in the append-only history channels instead — `agent.inject()`, `tools/post-execute` `additionalContext`, prompt-submit `additionalContext` — each a durable `context/message` paid once and prefix-cached thereafter - `agent/step-result` — post-process the assembled assistant message before tool dispatch (validates what the log records) - `agent/turn-continuation` — override the continue/stop decision via `ContinuationDecision` = `{action:'stop'}` or `{action:'continue', reason?}` (a `continue` `reason` is recorded as next-step steering in the same turn — the typed `/goal` pattern). Force-continue `/loop`, force-stop budget guard. diff --git a/packages/core/agent/src/types.ts b/packages/core/agent/src/types.ts index c35fc0d84e..27af421b17 100644 --- a/packages/core/agent/src/types.ts +++ b/packages/core/agent/src/types.ts @@ -17,7 +17,7 @@ * consumer that wants the live transcript subscribes here. * - **`agent/*`** (this module) — the LIVE runtime surface. Always carries the * live `Agent`. Two shapes: INTERCEPTION seams (the `agent/prompt-submit`/ - * `agent/request`/`agent/request-advice`/`agent/step-result`/ + * `agent/request`/`agent/session-prefix`/`agent/step-result`/ * `agent/turn-continuation` waterfalls and * the serial `agent/pre-step`) that mutate/veto, and TRANSIENT emits * (`agent/status`, `agent/error`, `agent/created`/ @@ -46,7 +46,7 @@ import type { Branded } from '@deepseek-ai/dsh-brand' import type { ContentBlock, LlmCallConfig, Message, MessageSource } from '@deepseek-ai/dsh-llm' -import type { PromptAssembly } from '@deepseek-ai/dsh-system-prompt' +import type {} from '@deepseek-ai/dsh-system-prompt' /** Identifies one live agent in the registry. */ export type AgentId = Branded<'AgentId'> @@ -155,54 +155,6 @@ export type ContinuationDecision = | { action: 'stop' } | { action: 'continue'; reason?: HookContext } -/** - * The request-only ADVICE an `agent/request-advice` waterfall listener weaves - * around the derived history of ONE LLM request — advice in both senses: - * advisory content for the model, attached before/after the join point like - * AOP advice, never modifying the history itself. In - * `GenerateOptions.messages` the `before` messages sit in front of the ENTIRE - * derived history (directly after the provider's system slot) and the `after` - * messages follow its last message (the newest user prompt on a turn's first - * step, the previous step's tool results afterwards). Advice is NOT session - * state — nothing here enters the session log as durable history, - * `Session.deriveMessages()` never returns it, and the next step recomputes - * it from scratch. The loop records the non-empty arrays on the request's - * `request/header*` event (`EpochHeader.messagePrefix` / `messageSuffix`), so - * the request stays reconstructable from the log (the reconstructability - * RFC). For content that must become durable conversation history, use the - * log channels instead: `agent.inject()`, steering, or prompt-submit - * `additionalContext`. - */ -export interface RequestAdvice { - /** Before-advice: messages placed ahead of the entire derived history. */ - before: Message[] - /** After-advice: messages placed after the derived history's last message. */ - after: Message[] -} - -/** - * Read-only facts about the request an `agent/request-advice` listener is - * contributing to. Everything here is already fixed when the seam fires: the - * step is open, the boundary snapshot is taken, and the system prompt is - * assembled — a listener uses these to DECIDE what to contribute (e.g. render - * a workspace-dependent reminder, or skip one already present in history), - * never to mutate them. - */ -export interface RequestAdviceContext { - /** The rendered system prompt this request will carry. */ - system: string - /** The prompt assembly the system prompt was rendered from (sections + tools). */ - assembly: PromptAssembly - /** - * The boundary snapshot: the derived history this request will carry between - * `before` and `after`. A frozen snapshot — treat it as read-only; content - * for the NEXT request flows through the log channels. - */ - boundaryMessages: readonly Message[] - /** Aborts in-flight listener work when the step is torn down. */ - signal: AbortSignal -} - /** * Why an agent's session lifecycle began, carried by `agent/session-start`. A * bridge keys its SessionStart hook's matcher on this (Claude Code's @@ -417,7 +369,7 @@ declare module 'cordis' { * session log (the reconstructability RFC), so model-visible content * flows through the log channels — `inject()`, steering, prompt-submit * `additionalContext`, prompt sections via `system-prompt/assemble`, or - * header-logged request-only messages via {@link agent/request-advice} + * the header-logged session prefix via {@link agent/session-prefix} * — never through request mutation, and the loop records whatever config * the request actually uses as a `request/header*` event before dispatch. * The step's messages are already snapshotted when this fires (the @@ -434,47 +386,38 @@ declare module 'cordis' { */ 'agent/request'(agent: Agent, turn: number, step: number, config: LlmCallConfig, next: () => Promise): Promise /** - * Waterfall: weave request-ONLY advice around the derived history — a - * {@link RequestAdvice} whose `before` messages sit in front of the - * ENTIRE boundary snapshot in `GenerateOptions.messages` and whose - * `after` messages follow its last message. Fires once per step, inside - * the open step, after the - * {@link agent/request} config waterfall and before the loop logs the - * request header. This is the seam for per-request advisory context the - * model must see NOW but that must NOT become durable history (a skills - * catalog, an environment reminder): contributions are recorded on the - * request's `request/header*` event (`EpochHeader.messagePrefix` / - * `messageSuffix`) — never as session messages — so - * `Session.deriveMessages()` stays untouched and the request remains - * reconstructable from the log. + * Waterfall: compose the SESSION PREFIX — request-only messages placed in + * front of the ENTIRE derived history (directly after the provider's + * system slot) on every request this loop instance sends. Fired ONCE per + * loop instance, lazily on its first request-building step; the composed + * result is deep-frozen, recorded as `EpochHeader.messagePrefix` on the + * instance's anchoring `'initial'`/`'resume'` header snapshot, and reused + * verbatim for every subsequent request — never recomputed mid-session, + * so the provider prefix cache holds by construction (a process restart + * or `ctx.agents.resume()` is a new instance: it recomposes, and any + * drift lands attributably on the `'resume'` snapshot). * - * The seed is frozen and empty; a contributing listener returns a NEW - * {@link RequestAdvice} extending `await next()` (spread its arrays — - * never mutate them), so contributions compose across plugins in - * registration order. The boundary snapshot is already taken when this - * fires: a `session.append`/`inject()` from a listener here lands in the - * log but joins the NEXT request — contribute through the returned value, - * not the session. Call `next()` to delegate, or return a - * {@link RequestAdvice} without it to short-circuit. + * This is the home for session-stable openers the model must always see + * but that must NOT become durable history — a skills catalog, an + * AGENTS.md digest, a workspace baseline: `Session.deriveMessages()` + * never returns the prefix, and the header events are its only durable + * record, so the request stays reconstructable from the log. Content + * that CHANGES mid-session belongs in the append-only history channels + * instead — `agent.inject()`, a `tools/post-execute` decision's + * `additionalContext`, prompt-submit `additionalContext` — each a + * durable `context/message` paid once and prefix-cached thereafter. * - * Pick the channel by change frequency (the cost model): a contribution - * rides the request's uncached tail, re-tokenized at full price on EVERY - * request it appears in — cheap only while small. Session-FROZEN content - * belongs in `before`, where it extends the cacheable prefix at zero - * marginal cost (but changing it mid-session invalidates the provider - * cache for the entire history after it). A LOW-FREQUENCY change notice - * belongs in durable history via `agent.inject()` — appended once, - * prefix-cached thereafter. Reserve `after` for small, frequently - * refreshed state snapshots, where a durable chain of stale copies would - * bloat the log and mislead the model. - * @param agent - the agent making the model call. - * @param turn - the open turn number. - * @param step - the step whose request this is. - * @param advice - the frozen empty seed; return an extended replacement to contribute. - * @param context - read-only request facts ({@link RequestAdviceContext}). + * The seed is a frozen empty list; a contributing listener returns a NEW + * array extending `await next()` (`[...prefix, mine]` — never an in-place + * push), so contributions compose across plugins in registration order + * and compose deterministically for a fixed plugin set. Call `next()` to + * delegate, or return a list without it to short-circuit. + * @param agent - the agent whose session prefix is being composed. + * @param prefix - the frozen empty seed; return an extended replacement to contribute. + * @param signal - aborts in-flight listener work (e.g. a discovery scan) when the step is torn down. * @mode waterfall */ - 'agent/request-advice'(agent: Agent, turn: number, step: number, advice: RequestAdvice, context: RequestAdviceContext, next: () => Promise): Promise + 'agent/session-prefix'(agent: Agent, prefix: Message[], signal: AbortSignal, next: () => Promise): Promise /** * Waterfall: post-process the assembled assistant {@link Message} before * tool dispatch (validation, content rewriting, …). diff --git a/packages/core/session/README.md b/packages/core/session/README.md index f032874cbe..1cc393e172 100644 --- a/packages/core/session/README.md +++ b/packages/core/session/README.md @@ -51,7 +51,7 @@ Plain class (not a Cordis Service). Create via `ctx.sessions.create()`. ### Request-header reconstruction (`request-header.ts`) -The `request/header` (full `EpochHeader` snapshot with a `RequestHeaderReason`) and `request/header-delta` (system line-trim / name-keyed tools delta / whole config / whole request-only message arrays) events make the request envelope logged session state, so every conversation request is a pure function of the log. The pure trio reconstructs it: `foldRequestHeader(events)` folds a log (or any prefix) into the header in force; `diffHeader(prev, next)` encodes a change (undefined when equal); `applyHeaderDelta(prev, delta)` replays one. Writer contract: every logged delta is round-trip-verified (`apply(prev, delta)` deep-equals the new header) with a `'fallback'` snapshot when the encoding cannot express the change (a pure tool reordering), so folding never needs error recovery on a well-formed log. `canonicalHeader` pins the one representation of absence (empty system/tools/messagePrefix/messageSuffix ≡ absent fields; a delta's EMPTY message array encodes the transition back to absence). `EpochHeader.messagePrefix`/`messageSuffix` are the durable record of the `agent/request-advice` waterfall's request-only contributions — the request is `messagePrefix + derived history + messageSuffix`, and `deriveMessages()` never returns them. +The `request/header` (full `EpochHeader` snapshot with a `RequestHeaderReason`) and `request/header-delta` (system line-trim / name-keyed tools delta / whole config / whole session prefix) events make the request envelope logged session state, so every conversation request is a pure function of the log. The pure trio reconstructs it: `foldRequestHeader(events)` folds a log (or any prefix) into the header in force; `diffHeader(prev, next)` encodes a change (undefined when equal); `applyHeaderDelta(prev, delta)` replays one. Writer contract: every logged delta is round-trip-verified (`apply(prev, delta)` deep-equals the new header) with a `'fallback'` snapshot when the encoding cannot express the change (a pure tool reordering), so folding never needs error recovery on a well-formed log. `canonicalHeader` pins the one representation of absence (empty system/tools/messagePrefix ≡ absent fields; a delta's EMPTY prefix array encodes the transition back to absence). `EpochHeader.messagePrefix` is the durable record of the `agent/session-prefix` waterfall's product — composed once per loop instance, the request is `messagePrefix + derived history`, and `deriveMessages()` never returns it. ### Session event vocabulary (`types.ts`) diff --git a/packages/core/session/src/request-header.ts b/packages/core/session/src/request-header.ts index a891237425..eeb2fe40ed 100644 --- a/packages/core/session/src/request-header.ts +++ b/packages/core/session/src/request-header.ts @@ -22,16 +22,14 @@ type HeaderDelta = { tools?: ToolsDelta config?: LlmCallConfig messagePrefix?: Message[] - messageSuffix?: Message[] } /** * Normalize a header to canonical form: an empty system prompt, an empty - * tool list, and empty request-only message arrays become ABSENT fields, - * matching how requests are built (the request-build spreads skip empty - * values). Diff, fold, and comparison all operate on canonical headers, so - * "no system prompt" (and "no request-only messages") has exactly one - * representation. + * tool list, and an empty session prefix become ABSENT fields, matching how + * requests are built (the request-build spreads skip empty values). Diff, + * fold, and comparison all operate on canonical headers, so "no system + * prompt" (and "no session prefix") has exactly one representation. * @param header - the header to normalize (not mutated). * @returns the canonical header. */ @@ -41,7 +39,6 @@ export function canonicalHeader(header: EpochHeader): EpochHeader { ...header.system !== undefined && header.system.length > 0 ? { system: header.system } : {}, ...header.tools !== undefined && header.tools.length > 0 ? { tools: header.tools } : {}, ...header.messagePrefix !== undefined && header.messagePrefix.length > 0 ? { messagePrefix: header.messagePrefix } : {}, - ...header.messageSuffix !== undefined && header.messageSuffix.length > 0 ? { messageSuffix: header.messageSuffix } : {}, } } @@ -121,22 +118,22 @@ function applyTools(prev: readonly ToolSchema[], delta: ToolsDelta): ToolSchema[ * writer's round-trip guard runs (`applyHeaderDelta(prev, delta)` must equal * the intended header) and the loop runs to skip logging an unchanged header. * Tools compare per-schema IN ORDER (canonical JSON), so a pure reordering is - * correctly unequal; request-only message arrays compare as canonical JSON - * (both sides come from the same build path, so key order matches when the - * values do). + * correctly unequal; the session prefix compares as canonical JSON (both + * sides come from the same build path, so key order matches when the values + * do). * @param a - one canonical header. * @param b - the other. - * @returns whether config, system, tools (in order), and request-only messages all match. + * @returns whether config, system, tools (in order), and the session prefix all match. */ export function headerEquals(a: EpochHeader, b: EpochHeader): boolean { if (!callConfigEquals(a.config, b.config) || a.system !== b.system) return false - if (!sameMessages(a.messagePrefix, b.messagePrefix) || !sameMessages(a.messageSuffix, b.messageSuffix)) return false + if (!sameMessages(a.messagePrefix, b.messagePrefix)) return false const at = a.tools ?? [] const bt = b.tools ?? [] return at.length === bt.length && at.every((tool, i) => sameSchema(tool, bt[i] as ToolSchema)) } -/** Canonical JSON equality over request-only message arrays; absence equals the empty array. */ +/** Canonical JSON equality over session-prefix arrays; absence equals the empty array. */ function sameMessages(a: readonly Message[] | undefined, b: readonly Message[] | undefined): boolean { return JSON.stringify(a ?? []) === JSON.stringify(b ?? []) } @@ -147,7 +144,7 @@ function sameMessages(a: readonly Message[] | undefined, b: readonly Message[] | * ({@link applyHeaderDelta} on `prev` deep-equals `next`) before logging it — * the encoding cannot express every change (a pure tool reordering) — and * fall back to a full `request/header` snapshot when the check fails. - * Request-only messages are replaced whole (small advisory content, not worth + * The session prefix is replaced whole (small advisory content, not worth * diffing); an empty replacement array encodes the transition to "none". * @param prev - the folded header the log currently implies. * @param next - the header the next request will actually use. @@ -161,7 +158,6 @@ export function diffHeader(prev: EpochHeader, next: EpochHeader): HeaderDelta | if (JSON.stringify(prevTools) !== JSON.stringify(nextTools)) delta.tools = diffTools(prevTools, nextTools) if (!callConfigEquals(prev.config, next.config)) delta.config = next.config if (!sameMessages(prev.messagePrefix, next.messagePrefix)) delta.messagePrefix = next.messagePrefix ?? [] - if (!sameMessages(prev.messageSuffix, next.messageSuffix)) delta.messageSuffix = next.messageSuffix ?? [] return Object.keys(delta).length > 0 ? delta : undefined } @@ -177,13 +173,11 @@ export function applyHeaderDelta(prev: EpochHeader, delta: HeaderDelta): EpochHe const system = delta.system !== undefined ? applySystem(prev.system, delta.system) : prev.system const tools = delta.tools !== undefined ? applyTools(prev.tools ?? [], delta.tools) : prev.tools const messagePrefix = delta.messagePrefix ?? prev.messagePrefix - const messageSuffix = delta.messageSuffix ?? prev.messageSuffix return canonicalHeader({ config: delta.config ?? prev.config, ...system !== undefined ? { system } : {}, ...tools !== undefined ? { tools } : {}, ...messagePrefix !== undefined ? { messagePrefix } : {}, - ...messageSuffix !== undefined ? { messageSuffix } : {}, }) } diff --git a/packages/core/session/src/types.ts b/packages/core/session/src/types.ts index 75fc84d9a0..ca6779e1dc 100644 --- a/packages/core/session/src/types.ts +++ b/packages/core/session/src/types.ts @@ -185,14 +185,13 @@ export interface TodoItem { /** * The request header: everything about an LLM request besides its derived * message history — the call configuration plus the rendered system prompt, - * tool schemas, and any request-only messages. Logged session state (the + * tool schemas, and the session prefix. Logged session state (the * reconstructability RFC): a * {@link SessionEventMap} `request/header` snapshot installs one, a * `request/header-delta` amends it, and folding those events over the log * (`foldRequestHeader`) reconstructs the header any request was built under. - * Canonical form: an empty system prompt, an empty tool list, and empty - * request-only message arrays are ABSENT fields, matching how requests are - * built. + * Canonical form: an empty system prompt, an empty tool list, and an empty + * prefix are ABSENT fields, matching how requests are built. */ export interface EpochHeader { /** The conversation's call configuration (model + sampling scalars). */ @@ -202,14 +201,13 @@ export interface EpochHeader { /** Assembled tool schemas; absent for a tool-less request. */ tools?: ToolSchema[] /** - * Request-only messages sent BEFORE the derived history (the - * `agent/request-advice` waterfall's `before` contributions). Not session - * history — `deriveMessages()` never returns them — so the header is their - * only durable record; absent when the request carried none. + * The session prefix: request-only messages sent BEFORE the entire derived + * history (the `agent/session-prefix` waterfall's product, composed once + * per loop instance and reused for every request it sends). Not session + * history — `deriveMessages()` never returns it — so the header is its + * only durable record; absent when the instance composed none. */ messagePrefix?: Message[] - /** Request-only messages sent AFTER the derived history; absent when none. */ - messageSuffix?: Message[] } /** @@ -369,9 +367,11 @@ export interface SessionEventMap { * Amendment to the folded {@link EpochHeader}: at least one of a * {@link SystemDelta}, a {@link ToolsDelta}, a whole replacement * {@link LlmCallConfig} (four scalars — not worth diffing), or a whole - * replacement request-only message array (`messagePrefix`/`messageSuffix` — - * small advisory content, replaced whole; an EMPTY array encodes the - * transition to "none", mirroring the canonical form's absent field). + * replacement session prefix (`messagePrefix` — small advisory content, + * replaced whole; an EMPTY array encodes the transition to "none", + * mirroring the canonical form's absent field — the loop never produces + * one in practice: the prefix is composed once per instance and anchored + * by that instance's snapshot, so this arm exists for codec totality). * Appended by the * loop inside the step, before dispatch, when the header for this request * differs from the fold of the log so far; the writer verifies @@ -379,7 +379,7 @@ export interface SessionEventMap { * falls back to a `'fallback'` `request/header` snapshot when it cannot, so * a logged delta ALWAYS round-trips. NOT a {@link SurfaceEventType}. */ - 'request/header-delta': { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig; messagePrefix?: Message[]; messageSuffix?: Message[] } + 'request/header-delta': { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig; messagePrefix?: Message[] } } /** The appendable event-type keys of {@link SessionEventMap}, plugin-merged extensions included. */ diff --git a/packages/core/session/tests/request-header.spec.ts b/packages/core/session/tests/request-header.spec.ts index 9db46598ac..8a5af819c3 100644 --- a/packages/core/session/tests/request-header.spec.ts +++ b/packages/core/session/tests/request-header.spec.ts @@ -107,38 +107,37 @@ describe('diffHeader / applyHeaderDelta', () => { }) }) -describe('request-only messages (messagePrefix / messageSuffix)', () => { - it('canonicalHeader normalizes empty arrays to absent fields', () => { - expect(canonicalHeader({ config: CONFIG, messagePrefix: [], messageSuffix: [] })).toEqual({ config: CONFIG }) - const full = canonicalHeader({ config: CONFIG, messagePrefix: [msg('p')], messageSuffix: [msg('s')] }) +describe('the session prefix (messagePrefix)', () => { + it('canonicalHeader normalizes an empty prefix to an absent field', () => { + expect(canonicalHeader({ config: CONFIG, messagePrefix: [] })).toEqual({ config: CONFIG }) + const full = canonicalHeader({ config: CONFIG, messagePrefix: [msg('p')] }) expect(full.messagePrefix).toEqual([msg('p')]) - expect(full.messageSuffix).toEqual([msg('s')]) }) it('headerEquals treats absence and empty as one representation, content differences as unequal', () => { expect(headerEquals(canonicalHeader({ config: CONFIG }), { config: CONFIG, messagePrefix: [] })).toBe(true) expect(headerEquals({ config: CONFIG, messagePrefix: [msg('a')] }, { config: CONFIG, messagePrefix: [msg('b')] })).toBe(false) - expect(headerEquals({ config: CONFIG, messageSuffix: [msg('a')] }, { config: CONFIG })).toBe(false) + expect(headerEquals({ config: CONFIG, messagePrefix: [msg('a')] }, { config: CONFIG })).toBe(false) }) - it('replaces a changed prefix whole and leaves an untouched suffix alone', () => { - const prev = canonicalHeader({ config: CONFIG, messagePrefix: [msg('old')], messageSuffix: [msg('keep')] }) - const next = canonicalHeader({ config: CONFIG, messagePrefix: [msg('new'), msg('more')], messageSuffix: [msg('keep')] }) + it('replaces a changed prefix whole and leaves untouched parts alone', () => { + const prev = canonicalHeader({ config: CONFIG, system: 'keep', messagePrefix: [msg('old')] }) + const next = canonicalHeader({ config: CONFIG, system: 'keep', messagePrefix: [msg('new'), msg('more')] }) const delta = roundTrip(prev, next) expect(delta).toEqual({ messagePrefix: [msg('new'), msg('more')] }) }) - it('round-trips framing gained from a bare header and lost back to one (empty array encodes absence)', () => { + it('round-trips a prefix gained from a bare header and lost back to one (empty array encodes absence)', () => { const none = canonicalHeader({ config: CONFIG }) - const some = canonicalHeader({ config: CONFIG, messagePrefix: [msg('p')], messageSuffix: [msg('s')] }) + const some = canonicalHeader({ config: CONFIG, messagePrefix: [msg('p')] }) const gained = roundTrip(none, some) - expect(gained).toEqual({ messagePrefix: [msg('p')], messageSuffix: [msg('s')] }) + expect(gained).toEqual({ messagePrefix: [msg('p')] }) const lost = roundTrip(some, none) - expect(lost).toEqual({ messagePrefix: [], messageSuffix: [] }) + expect(lost).toEqual({ messagePrefix: [] }) }) - it('folds framing deltas over the log like any other header amendment', () => { - const session = new Session(SessionId('fold-framing')) + it('folds prefix deltas over the log like any other header amendment', () => { + const session = new Session(SessionId('fold-prefix')) session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) const first = canonicalHeader({ config: CONFIG, messagePrefix: [msg('catalog v1')] }) session.append('request/header', { header: first, reason: 'initial' }) diff --git a/packages/llm/llm/src/types.ts b/packages/llm/llm/src/types.ts index 48125fff0d..e3339869a5 100644 --- a/packages/llm/llm/src/types.ts +++ b/packages/llm/llm/src/types.ts @@ -175,8 +175,8 @@ export interface GenerateOptions { /** * Ordered conversation messages, exactly as the provider sees them (after * the `system` slot). A loop-built request assembles them as - * `EpochHeader.messagePrefix` + the derived history + `messageSuffix` - * (dsh-agent-loop); a hand-built one-shot passes any list. + * `EpochHeader.messagePrefix` + the derived history (dsh-agent-loop); a + * hand-built one-shot passes any list. */ messages: Message[] /** System prompt text (adapters map to the provider's system slot). */ diff --git a/packages/support/invariants/src/index.ts b/packages/support/invariants/src/index.ts index 216049da09..8147a6deb6 100644 --- a/packages/support/invariants/src/index.ts +++ b/packages/support/invariants/src/index.ts @@ -367,9 +367,9 @@ export function apply(ctx: Context, config: Config = {}): void { // hand-built one-shot (compaction summarize) is unfrozen and skipped — must // be EXACTLY what the session log reconstructs: // - // - messages: the folded header's request-only messages (messagePrefix / - // messageSuffix — the `agent/request-advice` contributions, logged on - // the header because no session event carries them) framing the + // - messages: the folded header's session prefix (messagePrefix — the + // `agent/session-prefix` product, logged on the header because no + // session event carries it) followed by the // derivation over the log prefix strictly before the in-flight step's // `step/start` (the reconstruction boundary). The derivation is compared // against a FRESH Session built over that prefix — the same projection @@ -416,13 +416,13 @@ export function apply(ctx: Context, config: Config = {}): void { throw new InvariantError('a loop-built request with no request/header event in its session log') } const rebuilt = new Session(SessionId(`${String(session.id)}-invariant-rebuild`), structuredClone(events.slice(0, boundary))) - // The reconstruction equation: the folded header's request-only messages - // frame the boundary derivation (prefix + derived + suffix) — the loop + // The reconstruction equation: the folded header's session prefix, then + // the boundary derivation — the loop // logs the header event BEFORE dispatch, so the fold already covers this - // request's contributions. JSON equality is sound here: both sides are + // request's prefix. JSON equality is sound here: both sides are // structuredClones produced by the same projection/build code path, so key // insertion order matches when the values do. - const expected = [...header.messagePrefix ?? [], ...rebuilt.deriveMessages(), ...header.messageSuffix ?? []] + const expected = [...header.messagePrefix ?? [], ...rebuilt.deriveMessages()] if (JSON.stringify(options.messages) !== JSON.stringify(expected)) { throw new InvariantError(`llm request for session "${String(session.id)}" diverges from the boundary derivation (log-reconstruction desync)`) } diff --git a/packages/support/invariants/tests/invariants.spec.ts b/packages/support/invariants/tests/invariants.spec.ts index cccd6a54d4..af31f01911 100644 --- a/packages/support/invariants/tests/invariants.spec.ts +++ b/packages/support/invariants/tests/invariants.spec.ts @@ -707,19 +707,18 @@ describe('request-reconstruction cross-check (llm/stream)', () => { expect(() => { dispatch(ctx, options) }).not.toThrow() }) - it('expects the folded header\'s request-only messages to frame the derivation (prefix + derived + suffix)', async () => { + it('expects the folded header\'s session prefix ahead of the derivation (prefix + derived)', async () => { const { ctx, session, boundary } = await requestSetup() const prefix = { role: 'user' as const, content: [{ type: 'text' as const, text: 'catalog' }] } - const suffix = { role: 'user' as const, content: [{ type: 'text' as const, text: 'trailing note' }] } - session.append('request/header-delta', { messagePrefix: [prefix], messageSuffix: [suffix] }) - // The framed request matches the fold… - const framed = Object.freeze({ model: 'm', messages: Object.freeze([prefix, ...boundary, suffix]), sessionId: session.id }) - expect(() => { dispatch(ctx, framed) }).not.toThrow() - // …a request that DROPPED the logged framing diverges… + session.append('request/header-delta', { messagePrefix: [prefix] }) + // The prefixed request matches the fold… + const prefixed = Object.freeze({ model: 'm', messages: Object.freeze([prefix, ...boundary]), sessionId: session.id }) + expect(() => { dispatch(ctx, prefixed) }).not.toThrow() + // …a request that DROPPED the logged prefix diverges… const bare = Object.freeze({ model: 'm', messages: Object.freeze([...boundary]), sessionId: session.id }) expect(() => { dispatch(ctx, bare) }).toThrow(/diverges from the boundary derivation/) - // …and so does one that misplaced it (suffix sent as a prefix). - const misplaced = Object.freeze({ model: 'm', messages: Object.freeze([suffix, prefix, ...boundary]), sessionId: session.id }) + // …and so does one that misplaced it (prefix sent after the history). + const misplaced = Object.freeze({ model: 'm', messages: Object.freeze([...boundary, prefix]), sessionId: session.id }) expect(() => { dispatch(ctx, misplaced) }).toThrow(/diverges from the boundary derivation/) }) diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index dfa3be16c4..b66882d8c9 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -15,8 +15,6 @@ { "doc": "docs/core-data-structures/core.md", "symbol": "PromptDecision", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "ContinuationDecision", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "SessionStartSource", "source": "packages/core/agent/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "RequestAdvice", "source": "packages/core/agent/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "RequestAdviceContext", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "StreamChunk", "source": "packages/llm/llm/src/types.ts" }, { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "TokenUsage", "source": "packages/llm/llm/src/types.ts" }, From a83eb5d5c2e6976d389180ea9a47a07b67fc75a7 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Wed, 8 Jul 2026 15:46:46 +0800 Subject: [PATCH 070/232] docs: fit packages/README budget after merging code-runtime + timeout rows The master merge added a code-runtime/ package row while this branch adds the timeout/ row; together they push packages/README.md over its 605-word ceiling. Condense the timeout/ row to the terse sibling style and raise the ceiling 605->610 for the genuinely-new package group, mirroring how the code-runtime work raised architecture.md's ceiling in the same spirit. --- packages/README.md | 2 +- scripts/doc-budgets.manifest.json | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/packages/README.md b/packages/README.md index eb73457204..0c39434e40 100644 --- a/packages/README.md +++ b/packages/README.md @@ -16,7 +16,7 @@ Packages are grouped by modular role at `packages///`. The group dir | [`compact/`](compact/README.md) | Compaction capability family: the abstract seam + a basic backend (tool deferred) | Product — stable surface | | [`subagent/`](subagent/README.md) | Subagent capability family: the provider-registry seam and the model-facing delegation tool | Product — stable surface | | [`web/`](web/README.md) | Web capability family: the abstract seam, search/fetch provider impls, and the model-facing web tools | Product — stable surface | -| [`timeout/`](timeout/README.md) | Tool-call timeout policy: a `tools/execute` wrapper arming a per-tool deadline on `exec.signal` | Product — stable surface | +| [`timeout/`](timeout/README.md) | Tool-call timeout policy: the `tools/execute` deadline enforcer | Product — stable surface | | [`todo/`](todo/README.md) | Todo/planning family: the model-facing `todo_write` tool (whole-list task tracking on the session log) | Product — stable surface | | [`hooks/`](hooks/README.md) | Hook bridges + the shared Claude Code / Codex wire-protocol library | Product — stable surface | | [`session-persistence/`](session-persistence/README.md) | Persistence capability family: the seam + JSONL/SQLite backends | Product — stable surface | diff --git a/scripts/doc-budgets.manifest.json b/scripts/doc-budgets.manifest.json index fc2b9d12c2..337fc57763 100644 --- a/scripts/doc-budgets.manifest.json +++ b/scripts/doc-budgets.manifest.json @@ -7,5 +7,5 @@ "docs/testing.md": 800, "examples/AGENTS.md": 610, "packages/AGENTS.md": 450, - "packages/README.md": 605 + "packages/README.md": 610 } From f453ba77a209a9e071df75dfb427a1836c9ed6da Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Wed, 8 Jul 2026 15:50:38 +0800 Subject: [PATCH 071/232] refactor: split skill providers --- docs/architecture.md | 6 +- docs/capability-seams.md | 6 +- docs/cordis-catalog/events.md | 22 + docs/cordis-catalog/services.md | 5 +- docs/core-data-structures/skills.md | 83 +- docs/event-producer-consumer.md | 2 + docs/module-graph.md | 11 +- .../feature/2026-07-05-skill-system.md | 20 +- .../tests/snapshots/cancel/session.jsonl | 2 +- .../snapshots/error-finish/session.jsonl | 2 +- .../tests/snapshots/fs-edit/session.jsonl | 2 +- .../snapshots/fs-policy-reject/session.jsonl | 2 +- .../snapshots/fs-read-window/session.jsonl | 2 +- .../tests/snapshots/fs-read/session.jsonl | 2 +- .../snapshots/fs-terminal-card/session.jsonl | 2 +- .../fs-write-overwrite/session.jsonl | 2 +- .../tests/snapshots/fs-write/session.jsonl | 2 +- .../hook-cc-posttool-block/session.jsonl | 2 +- .../hook-cc-posttool-context/session.jsonl | 2 +- .../hook-cc-pretool-ask/session.jsonl | 2 +- .../hook-cc-pretool-deny/session.jsonl | 2 +- .../session.jsonl | 2 +- .../hook-cc-stop-continue/session.jsonl | 2 +- .../hook-codex-posttool-block/session.jsonl | 2 +- .../hook-codex-posttool-context/session.jsonl | 2 +- .../hook-codex-pretool-block/session.jsonl | 2 +- .../session.jsonl | 2 +- .../hook-codex-stop-continue/session.jsonl | 2 +- .../tests/snapshots/multi-turn/session.jsonl | 2 +- .../tests/snapshots/skill-load/session.jsonl | 4 +- .../snapshots/skill-load/stdout.golden.jsonl | 2 +- .../.dsh/skills/dsh-skill-creator/SKILL.md | 12 + .../snapshots/subagent-fork/session.1.jsonl | 4 +- .../snapshots/subagent-fork/session.jsonl | 2 +- .../snapshots/subagent-mixed/session.1.jsonl | 2 +- .../snapshots/subagent-mixed/session.2.jsonl | 4 +- .../snapshots/subagent-mixed/session.jsonl | 2 +- .../snapshots/subagent-multi/session.1.jsonl | 2 +- .../snapshots/subagent-multi/session.2.jsonl | 2 +- .../snapshots/subagent-multi/session.jsonl | 2 +- .../snapshots/subagent-spawn/session.1.jsonl | 2 +- .../snapshots/subagent-spawn/session.jsonl | 2 +- .../tests/snapshots/text-turn/session.jsonl | 2 +- .../tests/snapshots/todo-plan/session.jsonl | 2 +- .../snapshots/tool-call-turn/session.jsonl | 2 +- .../snapshots/workspace-edit/session.jsonl | 2 +- packages/core/README.md | 7 +- packages/core/agent-core/README.md | 13 +- packages/core/agent-core/package.json | 4 +- packages/core/agent-core/src/index.ts | 36 +- .../core/agent-core/tests/agent-core.spec.ts | 35 +- packages/core/agent-core/tsconfig.json | 3 + packages/core/skill-local/README.md | 37 + packages/core/skill-local/package.json | 38 + packages/core/skill-local/src/index.ts | 413 ++++++++ .../skill-local/tests/skill-local.spec.ts | 352 +++++++ packages/core/skill-local/tsconfig.json | 15 + packages/core/skill/README.md | 48 +- packages/core/skill/package.json | 9 +- packages/core/skill/src/index.ts | 658 +++++-------- packages/core/skill/tests/skill.spec.ts | 918 ++++-------------- packages/core/skill/tsconfig.json | 5 +- packages/core/tool-skill/README.md | 2 +- packages/core/tool-skill/package.json | 1 + packages/core/tool-skill/src/index.ts | 25 +- .../core/tool-skill/tests/tool-skill.spec.ts | 66 +- packages/ui/acp-agent/README.md | 2 +- packages/ui/acp-agent/src/index.ts | 4 +- packages/ui/acp-agent/tests/acp-agent.spec.ts | 7 +- packages/ui/stdio-agent/README.md | 2 +- packages/ui/stdio-agent/src/index.ts | 4 +- .../ui/stdio-agent/tests/stdio-agent.spec.ts | 7 +- pnpm-lock.yaml | 34 +- scripts/gen-doc-graphs.ts | 6 +- scripts/gen-tool-catalog.ts | 5 +- scripts/type-equiv.manifest.json | 3 + tsconfig.json | 1 + 77 files changed, 1673 insertions(+), 1334 deletions(-) create mode 100644 examples/acp-agent/tests/snapshots/skill-load/workspace/.dsh/skills/dsh-skill-creator/SKILL.md create mode 100644 packages/core/skill-local/README.md create mode 100644 packages/core/skill-local/package.json create mode 100644 packages/core/skill-local/src/index.ts create mode 100644 packages/core/skill-local/tests/skill-local.spec.ts create mode 100644 packages/core/skill-local/tsconfig.json diff --git a/docs/architecture.md b/docs/architecture.md index ddbc66c8b5..bcd4504114 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -17,7 +17,7 @@ The default distribution is a composition, not a hierarchy. `packages/core/` is | `ctx.sessions` | `dsh-session` | in-memory event-sourced sessions | | `ctx.systemPrompt` | `dsh-system-prompt` | ordered prompt sections, tool schemas, and prompt variables | | `ctx.tools` | `dsh-tools` | tool registry and [execution pipeline](tool-execution-pipeline.md) | -| `ctx.skills` | `dsh-skill` | project/user/system skill discovery and request-time guidance | +| `ctx.skills` | `dsh-skill` | provider registry for skills and request-time guidance | | `ctx.agents` | `dsh-agent` | live agent registry, public `Agent` handle, `agent/*` vocabulary | | `ctx.agentLoop` | `dsh-agent-loop` | shipped `ReactLoopAgent` driver | @@ -125,11 +125,11 @@ Streaming is a raw chunk protocol (`block-start` through `finish`) with `BlockAs A swappable capability usually splits into **interface / implementation / consumer**: the interface owns the `ctx` key and vocabulary; an implementation registers a backend; a consumer exposes model-facing behavior through `ctx.tools` or prompt assembly. The bash trio is the reference shape, and the [capability seam graph](capability-seams.md) shows the current package families. -Some seams bend the template deliberately. LLM keeps interface and consumer vocabulary together because adapters are the implementations. Filesystem adds policy as event gates around provider primitives. Web is one service with search and fetch provider registries, so provider swaps do not rename model tools. Subagents use a named provider registry because multiple delegation backends can coexist; `spawn` starts fresh, `fork` seeds from the parent's completed-turn prefix, and ACP can drive an out-of-process child ([subagent.md](core-data-structures/subagent.md)). +Some seams bend the template deliberately. LLM keeps interface and consumer vocabulary together because adapters are the implementations. Filesystem adds policy gates around provider primitives. Web is one service with search and fetch provider registries, so provider swaps do not rename model tools. Skills and subagents use named provider registries; local skills scan project/user roots, and other providers can add embedded or remote catalogs without registry/tool changes. Subagents spawn fresh, fork from the parent's completed-turn prefix, or use ACP children ([subagent.md](core-data-structures/subagent.md)). ### Bundles And Apps -`dsh-agent-core` is the default composition bundle: one plugin loading the providerless spine as code ([README](../packages/core/agent-core/README.md)). App packages compose it with a front door and own the boot `bin`: `dsh-stdio-agent` for the terminal REPL, and `dsh-acp-agent` for ACP over JSON-RPC stdio with no stdout logger ([ui/](../packages/ui/README.md)). A deployment is a thin `cordis.yml` leaf: swappable backends, one app entry, and optional product tools ([examples/](../examples/AGENTS.md), [runnable wirings](cookbook/extension-cookbook.md#runnable-wirings), [graph atlas](graph-atlas.md)). +`dsh-agent-core` is the default composition bundle: one plugin loading the shared spine ([README](../packages/core/agent-core/README.md)). App packages compose it with a front door and boot `bin`: `dsh-stdio-agent` for terminal REPL, and `dsh-acp-agent` for ACP over JSON-RPC stdio with no stdout logger ([ui/](../packages/ui/README.md)). A deployment is a thin `cordis.yml` leaf: swappable backends, one app entry, and optional product tools ([examples/](../examples/AGENTS.md), [runnable wirings](cookbook/extension-cookbook.md#runnable-wirings), [graph atlas](graph-atlas.md)). ### Where New Behavior Goes diff --git a/docs/capability-seams.md b/docs/capability-seams.md index f4bd420239..c799dfaa7b 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -35,8 +35,9 @@ flowchart LR pkg_tool_subagent["tool-subagent"] pkg_tool_todo["tool-todo"] pkg_skill["skill"] - svc_skills["ctx.skills
Skill discovery registry"] + svc_skills["ctx.skills
Skill provider registry"] pkg_agent_core["agent-core"] + pkg_skill_local["skill-local"] svc_agents["ctx.agents
Agent registry"] pkg_stdio_agent["stdio-agent"] svc_agentLoop["ctx.agentLoop
Concrete loop driver"] @@ -113,6 +114,7 @@ flowchart LR svc_sessions --> pkg_session_persistence svc_sessions --> pkg_subagent_inprocess svc_skills --> pkg_agent_core + svc_skills --> pkg_skill_local svc_skills --> pkg_tool_skill svc_subagents --> pkg_tool_subagent svc_systemPrompt --> pkg_agent_loop @@ -138,7 +140,7 @@ flowchart LR | `ctx.sessionPersistence` | `seam` | [`session-persistence`](../packages/session-persistence/session-persistence) | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp) | - | Backends persist the same SessionEvent vocabulary; apps choose a backend at composition time. | | `ctx.systemPrompt` | `core` | [`system-prompt`](../packages/core/system-prompt) | - | [`agent-loop`](../packages/core/agent-loop), [`tools`](../packages/core/tools), [`tool-fs`](../packages/fs/tool-fs), [`tool-web`](../packages/web/tool-web) | - | Collects prompt sections and model-facing tool schemas for each step. | | `ctx.tools` | `core` | [`tools`](../packages/core/tools) | - | [`agent-loop`](../packages/core/agent-loop), [`tool-bash`](../packages/bash/tool-bash), [`tool-fs`](../packages/fs/tool-fs), [`tool-skill`](../packages/core/tool-skill), [`tool-subagent`](../packages/subagent/tool-subagent), [`tool-todo`](../packages/todo/tool-todo), [`tool-web`](../packages/web/tool-web), [`acp`](../packages/ui/acp) | - | Registers tool definitions, exposes schemas to the prompt, and routes calls through tools/pre-execute and tools/post-execute. | -| `ctx.skills` | `core` | [`skill`](../packages/core/skill) | - | [`agent-core`](../packages/core/agent-core), [`tool-skill`](../packages/core/tool-skill) | - | Discovers project/user/system skills, injects request-time listings, and serves full skill bodies to the skill tool. | +| `ctx.skills` | `core` | [`skill`](../packages/core/skill) | - | [`agent-core`](../packages/core/agent-core), [`skill-local`](../packages/core/skill-local), [`tool-skill`](../packages/core/tool-skill) | - | Merges provider skill catalogs, injects request-time listings, and serves full skill bodies to the skill tool. | | `ctx.agents` | `core` | [`agent`](../packages/core/agent) | - | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp), [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`stdio-agent`](../packages/ui/stdio-agent), [`invariants`](../packages/support/invariants) | - | Owns live Agent handles and the create/resume factory seam. | | `ctx.agentLoop` | `bundle` | [`agent-loop`](../packages/core/agent-loop) | - | [`agent-core`](../packages/core/agent-core) | - | The one concrete loop plugin; extension packages depend on dsh-agent events and services, not on this package. | | `ctx.bash` | `seam` | [`bash`](../packages/bash/bash) | [`bash-local`](../packages/bash/bash-local) | [`tool-bash`](../packages/bash/tool-bash), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | - | The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors can replace bash-local. | diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 753cf8f4d0..64d571f163 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -233,6 +233,28 @@ Awaited durability checkpoint. The agent loop awaits `ctx.parallel('session/flus Source: [`packages/core/session/src/index.ts:57`](../../packages/core/session/src/index.ts) +## `skill/*` + +### `skill/provider-added` — emit + +A skill provider became resolvable in the `ctx.skills` registry. Consumers can observe this instead of depending on Cordis plugin load order, which is concurrent for sibling plugins. + +```ts cordis-catalog +'skill/provider-added'(provider: SkillProvider): void +``` + +Source: [`packages/core/skill/src/index.ts:127`](../../packages/core/skill/src/index.ts) + +### `skill/provider-removed` — emit + +A skill provider left the registry because its plugin fiber was disposed. + +```ts cordis-catalog +'skill/provider-removed'(name: string): void +``` + +Source: [`packages/core/skill/src/index.ts:133`](../../packages/core/skill/src/index.ts) + ## `subagent/*` ### `subagent/end` — emit diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 9eec6eb105..9eeab37b36 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -167,16 +167,17 @@ Source: [`packages/core/session/src/index.ts:371`](../../packages/core/session/s ## `ctx.skills` — `SkillService` -Skill discovery service. It scans project/user/system skill roots, exposes model-visible summaries, loads full skill bodies on demand, and injects the stable `## Skills` listing into each agent request. +Registry of skill providers. It merges provider catalogs with stable first-wins duplicate handling, exposes sorted model-visible summaries, loads full skill bodies on demand, and renders the request-time catalog fragment. ```ts cordis-catalog +registerProvider(provider: SkillProvider): () => void register(skill: SkillRegistration): () => void async list(options: SkillLookupOptions = {}): Promise async get(name: string, options: SkillLookupOptions = {}): Promise async renderModelListing(options: SkillLookupOptions = {}): Promise ``` -Source: [`packages/core/skill/src/index.ts:134`](../../packages/core/skill/src/index.ts) +Source: [`packages/core/skill/src/index.ts:154`](../../packages/core/skill/src/index.ts) ## `ctx.subagents` — `SubagentService` diff --git a/docs/core-data-structures/skills.md b/docs/core-data-structures/skills.md index f893803620..fb72ab6f57 100644 --- a/docs/core-data-structures/skills.md +++ b/docs/core-data-structures/skills.md @@ -1,36 +1,46 @@ # Skills -The skill stack is split across two core packages: the service ([dsh-skill](../../packages/core/skill), `ctx.skills`) discovers and parses local `SKILL.md` instructions, injects a stable request-time listing, and exposes full skill bodies on demand; the consumer ([dsh-tool-skill](../../packages/core/tool-skill), model-facing `skill`) loads one complete body for progressive disclosure. Skills are optional instructions, not session events, so their vocabulary lives here rather than in [core.md](core.md). +The skill stack is split across three core packages: the registry ([dsh-skill](../../packages/core/skill), `ctx.skills`) merges provider catalogs and renders request-time guidance; the local provider ([dsh-skill-local](../../packages/core/skill-local)) scans project/custom/user directories; the consumer ([dsh-tool-skill](../../packages/core/tool-skill), model-facing `skill`) loads one complete body for progressive disclosure. Skills are optional instructions, not session events, so their vocabulary lives here rather than in [core.md](core.md). -Source: [`packages/core/skill/src/index.ts`](../../packages/core/skill/src/index.ts) and [`packages/core/tool-skill/src/index.ts`](../../packages/core/tool-skill/src/index.ts). +Source: [`packages/core/skill/src/index.ts`](../../packages/core/skill/src/index.ts), [`packages/core/skill-local/src/index.ts`](../../packages/core/skill-local/src/index.ts), and [`packages/core/tool-skill/src/index.ts`](../../packages/core/tool-skill/src/index.ts). -## Discovery priority +## Provider registry -For a request with a cwd, `ctx.skills` finds the nearest git root and scans roots in first-wins order: +`ctx.skills` is a multi-provider registry. Providers can represent local directories, embedded plugin data, HTTP catalogs, or another source. The registry validates candidates, resolves duplicate skill names first-wins by rank/provider order/local order, and sorts the final model-visible catalog by `name` for deterministic prompt text. A provider `list()` rejection is logged and skipped without caching the degraded catalog; malformed candidates still fail fast because they violate the provider contract. -| Priority | Source | Root | +```ts type-equiv +interface SkillProvider { + name: string + list(options: SkillLookupOptions): Promise + get(candidate: SkillCandidate, options: SkillLookupOptions): Promise +} +``` + +## Local discovery priority + +The shipped local provider scans roots in rank order: + +| Rank | Source | Root | |---|---|---| -| 1 | `project-dsh` | `/.dsh/skills` | -| 2 | `project-agents` | `/.agents/skills` | -| 3 | `runtime` | `ctx.skills.register(...)` | -| 4 | `user-dsh` | `~/.dsh/skills` | -| 5 | `user-agents` | `~/.agents/skills` | -| 6 | `extra` | `Config.extraRoots` | -| 7 | `system` | `~/.dsh/skills/.system` | +| 100 | `project-dsh` | `/.dsh/skills` | +| 200 | `project-agents` | `/.agents/skills` | +| 300 | `custom` | `Config.customSkillDirs` | +| 400 | `user-dsh` | `/skills` | +| 500 | `user-agents` | `/skills` | -The user DSH root skips its `.system` child during normal scanning so built-in skills are discovered exactly once. Same-name skills keep the highest-priority copy and log a warning for later duplicates. After this priority pass, model-visible summaries are sorted by `name` before prompt rendering so the `## Skills` fragment is deterministic and friendly to provider prefix caches. +The project root is the nearest ancestor containing `.git`; without one, the current cwd is used. When `ctx.fs` is available, the git-root walk probes `.git` through the filesystem service so remote or sandboxed workspaces do not fall back to the host filesystem boundary. The user DSH root skips its `.system` child, and DeepSeek Harness no longer ships built-in system skills from the local provider. Additional built-ins can be supplied later by another provider. ## Skill identity -Skill names are kebab-case (`^[a-z0-9]+(?:-[a-z0-9]+)*$`). A skill can be a directory bundle (`/SKILL.md`) or a flat Markdown file (`.md`). Nested recursive `**/SKILL.md` discovery is intentionally outside v1. +Skill names are kebab-case (`^[a-z0-9]+(?:-[a-z0-9]+)*$`). The local provider accepts directory bundles (`/SKILL.md`) and flat Markdown files (`.md`). Nested recursive `**/SKILL.md` discovery is intentionally outside v1. ```ts type-equiv -type SkillSource = 'project-dsh' | 'project-agents' | 'runtime' | 'user-dsh' | 'user-agents' | 'extra' | 'system' +type SkillSource = 'project-dsh' | 'project-agents' | 'runtime' | 'user-dsh' | 'user-agents' | 'custom' | (string & {}) ``` -## Summaries and complete definitions +## Summaries, candidates, and complete definitions -`SkillSummary` is the model-visible shape: the request prompt gets the name, source, description, and optional routing hint, but never the body or absolute file path. `disableModelInvocation` hides a skill from listings while allowing trusted code to load it by name. +`SkillSummary` is the model-visible shape: the request prompt gets name, source, provider, description, and optional routing hint, but never the body or absolute file path. `disableModelInvocation` hides a skill from listings while allowing trusted code to load it by name. ```ts type-equiv interface SkillSummary { @@ -38,12 +48,31 @@ interface SkillSummary { description: string whenToUse?: string disableModelInvocation?: boolean - directory: string source: SkillSource + provider: string + resourceBase?: SkillResourceBase } ``` -`SkillDefinition` is the complete parsed result returned by `ctx.skills.get()` and used by the `skill` tool. `directory` is the base directory for resolving relative references in the skill body; `path` is present for disk skills; `metadata` preserves optional frontmatter for future consumers without changing v1 routing behavior. +`SkillCandidate` is the provider-to-registry shape. `locator` is opaque provider state; the registry only stores it and gives it back to the winning provider's `get()`. + +```ts type-equiv +interface SkillCandidate extends SkillSummary { + rank: number + locator: unknown + path?: string + metadata?: Record +} +``` + +`SkillDefinition` is the complete parsed result returned by `ctx.skills.get()` and used by the `skill` tool. `resourceBase` tells the tool how to render relative-resource guidance for local, URL, or provider-managed skills. + +```ts type-equiv +type SkillResourceBase = + | { kind: 'directory'; path: string } + | { kind: 'url'; url: string } + | { kind: 'opaque'; description: string } +``` ```ts type-equiv interface SkillDefinition extends SkillSummary { @@ -56,14 +85,14 @@ interface SkillDefinition extends SkillSummary { Runtime skills use the same complete shape and participate in the same first-wins collection order. The returned disposer removes the contribution and invalidates discovery caches. ```ts type-equiv -type SkillRegistration = Omit & { - disableModelInvocation?: boolean +type SkillRegistration = Omit & { + provider?: string } ``` ## Lookup and configuration -Skill lookup is cwd-sensitive because project skill roots are relative to the current workspace. If no git root is found, the supplied cwd itself is the project root. When `ctx.fs` is available, the git-root walk probes `.git` through the filesystem service so remote or sandboxed workspaces do not fall back to the host filesystem boundary. +Skill lookup is cwd-sensitive because providers may expose workspace-local skills. If no git root is found, the local provider treats the supplied cwd itself as the project root. ```ts type-equiv interface SkillLookupOptions { @@ -71,14 +100,10 @@ interface SkillLookupOptions { } ``` -The service can be pointed at alternate user roots in tests or deployments. `installSystemSkills` controls whether bundled system skills are materialized under `/skills/.system` on startup. `promptFieldMaxLength` must be at least `3`, matching the `...` truncation suffix reserved in rendered prompt fields. +The registry owns prompt/cache bounds. The local provider owns filesystem roots (`dshHome`, `agentsHome`, and `customSkillDirs`). ```ts type-equiv interface Config { - dshHome?: string - agentsHome?: string - extraRoots?: string[] - installSystemSkills?: boolean promptFieldMaxLength?: number collectCacheMaxEntries?: number } @@ -86,6 +111,6 @@ interface Config { ## Prompt and tool contract -`ctx.skills.renderModelListing()` returns a `## Skills` fragment wrapped in ``. Descriptions and `whenToUse` are whitespace-normalized, length-capped, and XML-escaped before rendering. The listing is appended as a late `system-prompt/assemble` section for the calling agent, so it remains cwd-sensitive while still flowing through the reconstructable system-prompt path. +`ctx.skills.renderModelListing()` returns a `## Skills` fragment wrapped in ``. Descriptions and `whenToUse` are whitespace-normalized, length-capped, XML-escaped, and have `{{` / `}}` split before rendering so skill metadata cannot be parsed as prompt-template variables. The listing is appended as a late `system-prompt/assemble` section for the calling agent, so it remains cwd-sensitive while still flowing through the reconstructable system-prompt path. -The model-facing `skill({ name })` tool validates the kebab-case name, loads the complete definition for the calling agent cwd, rejects unknown or `disableModelInvocation` skills, and returns a `` block with the body plus base-directory and relative-path guidance. The tool result is the only v1 path that exposes full skill instructions to the model. +The model-facing `skill({ name })` tool validates the kebab-case name, loads the complete definition for the calling agent cwd, rejects unknown or `disableModelInvocation` skills, and returns a `` block with the body plus provider resource guidance. The tool result is the only v1 path that exposes full skill instructions to the model. diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index b1261d0dba..030d93f27b 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -25,6 +25,8 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `session/created` | `emit` | [`packages/core/session/src/index.ts:39`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence) | | `session/event` | `emit` | [`packages/core/session/src/index.ts:47`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence), [`stdio-agent`](../packages/ui/stdio-agent) | | `session/flush` | `parallel` | [`packages/core/session/src/index.ts:57`](../packages/core/session/src/index.ts) | [`agent-loop`](../packages/core/agent-loop) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | +| `skill/provider-added` | `emit` | [`packages/core/skill/src/index.ts:127`](../packages/core/skill/src/index.ts) | [`skill`](../packages/core/skill) (`emit`) | - | +| `skill/provider-removed` | `emit` | [`packages/core/skill/src/index.ts:133`](../packages/core/skill/src/index.ts) | [`skill`](../packages/core/skill) (`emit`) | - | | `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:98`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:72`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | | `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:83`](../packages/subagent/subagent/src/index.ts) | - | [`tool-subagent`](../packages/subagent/tool-subagent) | diff --git a/docs/module-graph.md b/docs/module-graph.md index e0e75af5a3..0c4a00eac9 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -21,6 +21,7 @@ flowchart TD pkg_agent_loop["agent-loop"] pkg_session["session"] pkg_skill["skill"] + pkg_skill_local["skill-local"] pkg_system_prompt["system-prompt"] pkg_tool_skill["tool-skill"] pkg_tools["tools"] @@ -109,8 +110,6 @@ flowchart TD pkg_llm_replay --> pkg_llm pkg_llm_replay --> pkg_session pkg_skill --> pkg_agent - pkg_skill --> pkg_fs - pkg_skill --> pkg_llm pkg_skill --> pkg_system_prompt pkg_tools --> pkg_agent pkg_tools --> pkg_llm @@ -132,6 +131,8 @@ flowchart TD pkg_agent_loop --> pkg_session_persistence pkg_agent_loop --> pkg_system_prompt pkg_agent_loop --> pkg_tools + pkg_skill_local --> pkg_fs + pkg_skill_local --> pkg_skill pkg_tool_skill --> pkg_agent pkg_tool_skill --> pkg_llm pkg_tool_skill --> pkg_skill @@ -172,6 +173,7 @@ flowchart TD pkg_agent_core --> pkg_llm pkg_agent_core --> pkg_session pkg_agent_core --> pkg_skill + pkg_agent_core --> pkg_skill_local pkg_agent_core --> pkg_system_prompt pkg_agent_core --> pkg_tool_bash pkg_agent_core --> pkg_tool_skill @@ -238,13 +240,14 @@ flowchart TD | [`hook-protocol`](../packages/hooks/hook-protocol) | `hooks` | [`bash`](../packages/bash/bash), [`session`](../packages/core/session) | | [`session-persistence`](../packages/session-persistence/session-persistence) | `session-persistence` | [`session`](../packages/core/session) | | [`llm-replay`](../packages/support/llm-replay) | `support` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | -| [`skill`](../packages/core/skill) | `core` | [`agent`](../packages/core/agent), [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt) | +| [`skill`](../packages/core/skill) | `core` | [`agent`](../packages/core/agent), [`system-prompt`](../packages/core/system-prompt) | | [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt) | | [`compact-basic`](../packages/compact/compact-basic) | `compact` | [`agent`](../packages/core/agent), [`compact`](../packages/compact/compact), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`invariants`](../packages/support/invariants) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`agent-loop`](../packages/core/agent-loop) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | +| [`skill-local`](../packages/core/skill-local) | `core` | [`fs`](../packages/fs/fs), [`skill`](../packages/core/skill) | | [`tool-skill`](../packages/core/tool-skill) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`skill`](../packages/core/skill), [`tools`](../packages/core/tools) | | [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-fs`](../packages/fs/tool-fs) | `fs` | [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | @@ -253,7 +256,7 @@ flowchart TD | [`tool-todo`](../packages/todo/tool-todo) | `todo` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`hooks-codex`](../packages/hooks/hooks-codex) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools) | -| [`agent-core`](../packages/core/agent-core) | `core` | [`agent`](../packages/core/agent), [`agent-loop`](../packages/core/agent-loop), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`skill`](../packages/core/skill), [`system-prompt`](../packages/core/system-prompt), [`tool-bash`](../packages/bash/tool-bash), [`tool-skill`](../packages/core/tool-skill), [`tools`](../packages/core/tools) | +| [`agent-core`](../packages/core/agent-core) | `core` | [`agent`](../packages/core/agent), [`agent-loop`](../packages/core/agent-loop), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`skill`](../packages/core/skill), [`skill-local`](../packages/core/skill-local), [`system-prompt`](../packages/core/system-prompt), [`tool-bash`](../packages/bash/tool-bash), [`tool-skill`](../packages/core/tool-skill), [`tools`](../packages/core/tools) | | [`subagent-acp`](../packages/subagent/subagent-acp) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent) | | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent) | | [`tool-subagent`](../packages/subagent/tool-subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent), [`tools`](../packages/core/tools) | diff --git a/docs/rfc/implemented/feature/2026-07-05-skill-system.md b/docs/rfc/implemented/feature/2026-07-05-skill-system.md index 5f4a18e5a0..45ad964d90 100644 --- a/docs/rfc/implemented/feature/2026-07-05-skill-system.md +++ b/docs/rfc/implemented/feature/2026-07-05-skill-system.md @@ -10,19 +10,19 @@ DeepSeek Harness needs the same primitive because project-specific review, plugi ## Decision -Add `@deepseek-ai/dsh-skill` as the discovery service (`ctx.skills`) and `@deepseek-ai/dsh-tool-skill` as the model-facing loader tool. `dsh-agent-core` loads both by default so stdio and ACP apps get the same behavior. +Add `@deepseek-ai/dsh-skill` as the provider registry (`ctx.skills`), `@deepseek-ai/dsh-skill-local` as the shipped local filesystem provider, and `@deepseek-ai/dsh-tool-skill` as the model-facing loader tool. `dsh-agent-core` loads the registry, local provider, and tool by default so stdio and ACP apps get the same behavior while future providers can contribute embedded or remote skills without changing the registry or tool. -Discovery scans cwd-sensitive project roots, runtime registrations, user roots, extra roots, and system roots in first-wins priority order: project `.dsh`, project `.agents`, runtime, user `.dsh`, user `.agents`, extra roots, then `~/.dsh/skills/.system`. The user `.dsh/skills` scan skips `.system` so built-ins are not discovered twice. Same-name lower-priority skills are ignored with a warning, which lets project and user skills override built-ins deliberately. +Provider catalogs return ranked candidates. The registry validates each candidate, resolves same-name skills first-wins by rank, provider registration order, and provider-local order, then sorts model-visible summaries by skill name for deterministic prompt text. Runtime `ctx.skills.register(...)` remains a convenience for embedded in-process skills and uses project-over-user priority; `runtime` is reserved as the registry-owned provider name. + +The local provider scans cwd-sensitive project roots, custom roots, and user roots in first-wins rank order: project `.dsh`, project `.agents`, `customSkillDirs`, user `.dsh`, then user `.agents`. The user `.dsh/skills` scan skips `.system` so a system-owned directory is not treated as normal user content. DeepSeek Harness does not ship built-in system skills in v1; plugin-authoring skills can be supplied later by another provider. Each skill is either `/SKILL.md` or `.md` with YAML frontmatter. `name` and `description` are required; `whenToUse`, `disableModelInvocation`, and `metadata` are optional. Names are kebab-case. YAML frontmatter is parsed with the `yaml` package instead of `js-yaml` or a hand-written parser: `yaml` is the already-declared modern parser for this package's limited frontmatter needs, and a narrow parser would either reject valid YAML users expect to work or grow into an unreviewed YAML subset. -Skill filesystem I/O goes through `ctx.fs` when a filesystem service is loaded: project-root lookup probes `.git` with `resolve` and `stat`, root discovery uses `listDir`, skill reads use `readText`, and system-skill installation uses `writeText`. The Node filesystem remains a fallback for minimal contexts that mount `dsh-skill` without the fs seam. Missing roots and unreadable or malformed skill files degrade to warn-and-skip so one bad local file does not make every agent request fail. +Local skill filesystem I/O goes through `ctx.fs` when a filesystem service is loaded: project-root lookup probes `.git` with `resolve` and `stat`, root discovery uses `listDir`, and skill reads use `readText`. The Node filesystem remains a fallback for minimal contexts that mount `dsh-skill-local` without the fs seam. Missing roots, unreadable or malformed skill files, and transient provider `list()` failures degrade to warn-and-skip so one bad source does not make every agent request fail; malformed candidates still fail fast because they are provider contract violations. -The service injects a request-time `## Skills` fragment through the existing `system-prompt/assemble` waterfall. It appends a late section for the calling agent instead of mutating `GenerateOptions.system` in `agent/request`, because request configuration is now reconstructable model/sampling state while model-visible content flows through system prompt assembly. The fragment contains only stable routing metadata and is sorted by skill name after first-wins collection, so equivalent workspaces produce deterministic prompt text and better prefix-cache reuse. Full skill bodies are never included in the listing. +The service injects a request-time `## Skills` fragment through the existing `system-prompt/assemble` waterfall. It appends a late section for the calling agent instead of mutating `GenerateOptions.system` in `agent/request`, because request configuration is now reconstructable model/sampling state while model-visible content flows through system prompt assembly. The fragment contains only stable routing metadata, splits `{{` / `}}` before template rendering, and is sorted by skill name after first-wins collection, so equivalent workspaces produce deterministic prompt text and better prefix-cache reuse. Full skill bodies are never included in the listing. -The `skill({ name })` tool loads one full skill for the current agent cwd and returns a `` block with the body plus base-directory guidance. Invalid names, unknown skills, and skills marked `disableModelInvocation` return tool errors. v1 does not additionally inject the loaded body into session context; the tool result is the model-visible disclosure path. - -System skills are ordinary skill files materialized under `~/.dsh/skills/.system` on startup. v1 ships `dsh-plugin-creator` and `dsh-skill-creator` there so the agent can help author DeepSeek Harness plugins and future skills using the same mechanism users can override. +The `skill({ name })` tool loads one full skill for the current agent cwd and returns a `` block with the body plus provider resource guidance. Local filesystem skills include base-directory guidance; embedded or remote providers can return URL or opaque provider-managed guidance. Invalid names, unknown skills, and skills marked `disableModelInvocation` return tool errors. v1 does not additionally inject the loaded body into session context; the tool result is the model-visible disclosure path. The data structures and prompt/tool contract are documented in [skills.md](../../../core-data-structures/skills.md), with service signatures in the generated [services catalog](../../../cordis-catalog/services.md). @@ -32,14 +32,18 @@ The data structures and prompt/tool contract are documented in [skills.md](../.. **Expose skills only as slash commands.** Rejected for v1 because model-initiated loading is the core capability; slash/ACP command advertisement can layer on later without changing discovery. +**Put local filesystem scanning directly inside `ctx.skills`.** Rejected because coding agents, web agents, and future plugin ecosystems need different skill sources. A provider registry mirrors the subagent seam: the registry owns conflict resolution and consumers, while implementations own loading. + **Use a separate system-reminder message.** Rejected for the current loop because the provider-neutral system prompt surface is assembled through `system-prompt/assemble`. A later provider-specific surface can still split this fragment if needed. +**Materialize built-in DSH authoring skills under `~/.dsh/skills/.system`.** Rejected for v1 because bundled skills should not write user home on startup, and the product can receive those skills from a later embedded or remote provider. + **Recursively discover nested `**/SKILL.md`.** Rejected for v1. Flat files and one-level directory bundles cover the configured roots while keeping duplicate handling and prompt order easy to reason about. **Hand-parse frontmatter.** Rejected because the accepted schema includes an open `metadata` object. A narrow parser would either reject valid YAML users expect to work or grow into an unreviewed YAML subset. ## Consequences -The agent-core spine now includes one more request-time contributor and one more model-facing tool. Skill discovery is cwd-sensitive, so tests and callers that create agents with different session cwd values can observe different project skill overrides by design. +The agent-core spine now includes one more request-time contributor, one local provider, and one model-facing tool. Skill discovery is cwd-sensitive, so tests and callers that create agents with different session cwd values can observe different project skill overrides by design. The prompt fragment is deterministic for a fixed root set and runtime registration revision, but disk changes are not watched; discovery is memoized until runtime registration invalidates the cache or the process restarts. That keeps v1 simple and avoids adding file watching policy before there is a concrete user flow for hot-reloading skills. diff --git a/examples/acp-agent/tests/snapshots/cancel/session.jsonl b/examples/acp-agent/tests/snapshots/cancel/session.jsonl index 837a4ae788..662ec035d0 100644 --- a/examples/acp-agent/tests/snapshots/cancel/session.jsonl +++ b/examples/acp-agent/tests/snapshots/cancel/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"Start a long task; this turn will be cancelled mid-stream."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}} {"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":0,"text":"partial"}}} {"type":"step/end","seq":6,"time":0,"data":{"turn":1,"step":1}} diff --git a/examples/acp-agent/tests/snapshots/error-finish/session.jsonl b/examples/acp-agent/tests/snapshots/error-finish/session.jsonl index e9d23fa669..d6840aedd8 100644 --- a/examples/acp-agent/tests/snapshots/error-finish/session.jsonl +++ b/examples/acp-agent/tests/snapshots/error-finish/session.jsonl @@ -2,6 +2,6 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"This prompt triggers a recorded provider error."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"step/end","seq":4,"time":0,"data":{"turn":1,"step":1}} {"type":"turn/end","seq":5,"time":0,"data":{"turn":1,"reason":{"kind":"error","step":1,"message":"simulated provider error (HTTP 401)","code":"AUTH"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl b/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl index 0a2de9911a..33c2408242 100644 --- a/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279365277,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279365278,"data":{"content":[{"type":"text","text":"First use the read tool to read config.txt in the current directory. Then use the edit tool (NOT bash) to replace the literal text DEBUG with RELEASE in that file. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279365279,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279365279,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-0g5rlt.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279365279,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-0g5rlt.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279365884,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279365884,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"Let"}}} {"type":"assistant/chunk","seq":6,"time":1783279365982,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl b/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl index 2e58233309..574661bcdc 100644 --- a/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279382954,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279382954,"data":{"content":[{"type":"text","text":"Do NOT use the read tool. Immediately use the edit tool to replace the literal text blue with green in settings.txt in the current directory. Do not read the file first. After the tool result, reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279382955,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279382956,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-qgXmIP.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279382956,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-qgXmIP.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279383606,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279383606,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279383721,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl b/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl index 0a03943616..55dea5deb8 100644 --- a/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279377803,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279377804,"data":{"content":[{"type":"text","text":"Use the read tool (NOT bash) with offset 5 and limit 4 to read lines 5 through 8 of big.txt in the current directory. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279377806,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279377806,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-mA31X1.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279377806,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-mA31X1.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279378450,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279378450,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279378533,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-read/session.jsonl b/examples/acp-agent/tests/snapshots/fs-read/session.jsonl index 8260f3e56a..5f85511a12 100644 --- a/examples/acp-agent/tests/snapshots/fs-read/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-read/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279355670,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279355671,"data":{"content":[{"type":"text","text":"Use the read tool (NOT bash) to read the file greeting.txt in the current directory, then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279355673,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279355673,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-Zo3aiO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279355673,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-Zo3aiO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279356329,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279356330,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279356465,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl b/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl index 6872cf584d..3608e57446 100644 --- a/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279337866,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279337867,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo TERMINAL_OK. Then reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279337868,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279337871,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-ImzwJW.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279337871,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-ImzwJW.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279338459,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279338459,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279338579,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl b/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl index 84061f8f2a..1a498a4cf6 100644 --- a/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"First use the read tool to read data.txt in the current directory. Then use the write tool (NOT bash) to replace its entire contents with exactly the single line: replaced. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-write/session.jsonl b/examples/acp-agent/tests/snapshots/fs-write/session.jsonl index b993bf5b37..3ff5485cba 100644 --- a/examples/acp-agent/tests/snapshots/fs-write/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-write/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"Use the write tool (NOT bash) to create a file named notes.txt in the current directory containing exactly the single line: hello world. Then reply with exactly the single word DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl index 3a2b0f62fd..386bdcc6d7 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279438851,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279438852,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279438853,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279438856,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-4FNHMZ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279438856,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-4FNHMZ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279439575,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279439576,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279439723,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-posttool-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-posttool-context/session.jsonl index 02953a8c3b..5c03f60962 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-posttool-context/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-posttool-context/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279454673,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279454674,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279454675,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279454676,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-l0uhay.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279454676,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-l0uhay.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279455097,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279455097,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279455192,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl index d6eed1b5a0..489feef383 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279433755,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279433756,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279433757,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279433759,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-GbznxQ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279433759,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-GbznxQ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279434229,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279434229,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279434325,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-pretool-deny/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-pretool-deny/session.jsonl index 6668bb2d56..75639e516d 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-pretool-deny/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-pretool-deny/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279428483,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279428484,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279428485,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279428488,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-YXKW6X.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279428488,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-YXKW6X.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279429149,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279429149,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279429278,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl index 09e9cc158c..5b7a480cd1 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl @@ -5,7 +5,7 @@ {"type":"user/message","seq":3,"time":1783279424786,"data":{"content":[{"type":"text","text":"What is my favorite color? Reply with just the color and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"context/message","seq":4,"time":1783279424786,"data":{"content":[{"type":"text","text":"The user has previously stated their favorite color is teal."}],"source":{"kind":"plugin","plugin":"hooks-claude"}},"surfaceOp":"append"} {"type":"step/start","seq":5,"time":1783279424787,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":6,"time":1783279424788,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-jHjRG4.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":6,"time":1783279424788,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-jHjRG4.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":7,"time":1783279425470,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":8,"time":1783279425471,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":9,"time":1783279425619,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl index 4515f4fb02..be325592dc 100644 --- a/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-cc-stop-continue/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279459589,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279459590,"data":{"content":[{"type":"text","text":"Reply with the single word FIRST and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279459591,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279459592,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-y7ZIlD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279459592,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-y7ZIlD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279460023,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279460023,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279460120,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-posttool-block/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-posttool-block/session.jsonl index 75fe0686b0..64693fdc5e 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-posttool-block/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-posttool-block/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279472951,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279472952,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279472953,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279472957,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-up4xkk.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279472957,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-up4xkk.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279473683,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279473683,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279473835,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-posttool-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-posttool-context/session.jsonl index 2be1bf0743..7f89a9d184 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-posttool-context/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-posttool-context/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279478902,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279478903,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279478904,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279478905,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-S4Pl3Q.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279478905,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-S4Pl3Q.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279479573,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279479573,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279479735,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl index 6f01d8dae3..653aa2a184 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279467545,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279467546,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo HELLO. Report the tool result you got back verbatim, then stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279467547,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279467548,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-XJzzAW.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279467548,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-XJzzAW.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279468248,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279468248,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279468448,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl index d81be0b43b..9650113653 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl @@ -5,7 +5,7 @@ {"type":"user/message","seq":3,"time":1783279463864,"data":{"content":[{"type":"text","text":"What is my favorite color? Reply with just the color and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"context/message","seq":4,"time":1783279463864,"data":{"content":[{"type":"text","text":"The user has previously stated their favorite color is teal."}],"source":{"kind":"plugin","plugin":"hooks-codex"}},"surfaceOp":"append"} {"type":"step/start","seq":5,"time":1783279463865,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":6,"time":1783279463866,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-dXMGno.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":6,"time":1783279463866,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-dXMGno.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":7,"time":1783279464538,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":8,"time":1783279464539,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":9,"time":1783279464680,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl index 77a712d7e0..6dd59f2575 100644 --- a/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl +++ b/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279484315,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279484316,"data":{"content":[{"type":"text","text":"Reply with the single word FIRST and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279484317,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279484319,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-CW2Kzh.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279484319,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-CW2Kzh.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279484964,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279484964,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279485118,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/multi-turn/session.jsonl b/examples/acp-agent/tests/snapshots/multi-turn/session.jsonl index 674ced8717..875b408276 100644 --- a/examples/acp-agent/tests/snapshots/multi-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/multi-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279390951,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279390951,"data":{"content":[{"type":"text","text":"Reply with exactly the word: ONE. No tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279390953,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279390953,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-YRz0cJ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279390953,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-YRz0cJ.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279391532,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279391532,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279391637,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/skill-load/session.jsonl b/examples/acp-agent/tests/snapshots/skill-load/session.jsonl index bb5d744bd2..689d0a76c0 100644 --- a/examples/acp-agent/tests/snapshots/skill-load/session.jsonl +++ b/examples/acp-agent/tests/snapshots/skill-load/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783329004152,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783329004153,"data":{"content":[{"type":"text","text":"Load the dsh-skill-creator skill with the skill tool, then reply DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783329004168,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783329004168,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-g1SZ2i.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783329004168,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-g1SZ2i.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783329004168,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783329004168,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"Load the requested skill."}}} {"type":"assistant/chunk","seq":6,"time":1783329004169,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"tool-call"}}} @@ -13,7 +13,7 @@ {"type":"assistant/chunk","seq":11,"time":1783329004169,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}} {"type":"assistant/message","seq":12,"time":1783329004169,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"Load the requested skill."},{"type":"tool-call","id":"call_skill_load","name":"skill","arguments":"{\"name\":\"dsh-skill-creator\"}"}],"usage":{"inputTokens":100,"outputTokens":20,"cacheReadTokens":0,"reasoningTokens":5}},"sourceEventSeqs":[4,5,6,7,8,9,10,11],"surfaceOp":"append"} {"type":"tool/call","seq":13,"time":1783329004169,"data":{"turn":1,"step":1,"callId":"call_skill_load","name":"skill","arguments":"{\"name\":\"dsh-skill-creator\"}"}} -{"type":"tool/result","seq":14,"time":1783329004170,"data":{"turn":1,"step":1,"callId":"call_skill_load","content":[{"type":"text","text":"\n# Skill: dsh-skill-creator\n\nUse this skill to write focused DeepSeek Harness skills.\n\nA skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter.\nFrontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it.\nUse optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills.\nKeep the body procedural, evidence-oriented, and scoped to the workflow the skill owns.\n\nBase directory for this skill: /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-g1SZ2i/.dsh/skills/.system/dsh-skill-creator\nResolve relative files mentioned by this skill against the base directory before using them.\n"}],"isError":false},"sourceEventSeqs":[13],"surfaceOp":"append"} +{"type":"tool/result","seq":14,"time":1783329004170,"data":{"turn":1,"step":1,"callId":"call_skill_load","content":[{"type":"text","text":"\n# Skill: dsh-skill-creator\n\nUse this skill to write focused DeepSeek Harness skills.\n\nA skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter.\nFrontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it.\nUse optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills.\nKeep the body procedural, evidence-oriented, and scoped to the workflow the skill owns.\n\nBase directory for this skill: /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-g1SZ2i/.dsh/skills/dsh-skill-creator\nResolve relative files mentioned by this skill against the base directory before using them.\n"}],"isError":false},"sourceEventSeqs":[13],"surfaceOp":"append"} {"type":"step/end","seq":15,"time":1783329004170,"data":{"turn":1,"step":1}} {"type":"step/start","seq":16,"time":1783329004171,"data":{"turn":1,"step":2}} {"type":"assistant/chunk","seq":17,"time":1783329004171,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} diff --git a/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl index bb87794d28..764780c428 100644 --- a/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl @@ -2,7 +2,7 @@ {"jsonrpc":"2.0","id":2,"result":{"sessionId":"{{sessionId}}"}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"Load the requested skill."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_skill_load","title":"Load skill dsh-skill-creator","kind":"read","status":"in_progress","rawInput":"dsh-skill-creator"}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_skill_load","status":"completed","content":[{"type":"content","content":{"type":"text","text":"\n# Skill: dsh-skill-creator\n\nUse this skill to write focused DeepSeek Harness skills.\n\nA skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter.\nFrontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it.\nUse optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills.\nKeep the body procedural, evidence-oriented, and scoped to the workflow the skill owns.\n\nBase directory for this skill: {{cwd}}/.dsh/skills/.system/dsh-skill-creator\nResolve relative files mentioned by this skill against the base directory before using them.\n"}}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_skill_load","status":"completed","content":[{"type":"content","content":{"type":"text","text":"\n# Skill: dsh-skill-creator\n\nUse this skill to write focused DeepSeek Harness skills.\n\nA skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter.\nFrontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it.\nUse optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills.\nKeep the body procedural, evidence-oriented, and scoped to the workflow the skill owns.\n\nBase directory for this skill: {{cwd}}/.dsh/skills/dsh-skill-creator\nResolve relative files mentioned by this skill against the base directory before using them.\n"}}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The skill is loaded."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"DONE"}}}} {"jsonrpc":"2.0","id":3,"result":{"stopReason":"end_turn"}} diff --git a/examples/acp-agent/tests/snapshots/skill-load/workspace/.dsh/skills/dsh-skill-creator/SKILL.md b/examples/acp-agent/tests/snapshots/skill-load/workspace/.dsh/skills/dsh-skill-creator/SKILL.md new file mode 100644 index 0000000000..684bc0885e --- /dev/null +++ b/examples/acp-agent/tests/snapshots/skill-load/workspace/.dsh/skills/dsh-skill-creator/SKILL.md @@ -0,0 +1,12 @@ +--- +name: dsh-skill-creator +description: Create or update DeepSeek Harness SKILL.md instructions. +whenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills. +--- + +Use this skill to write focused DeepSeek Harness skills. + +A skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter. +Frontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it. +Use optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills. +Keep the body procedural, evidence-oriented, and scoped to the workflow the skill owns. diff --git a/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl index de6fdb41b1..1c46db9772 100644 --- a/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279408071,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279408071,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is MARMALADE. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279408072,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279408073,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279408073,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279408758,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279408758,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279408906,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} @@ -35,7 +35,7 @@ {"type":"turn/start","seq":33,"time":1783279410879,"data":{"turn":2,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":34,"time":1783279410880,"data":{"content":[{"type":"text","text":"What is the project codeword mentioned earlier in this conversation? Reply with exactly that one word and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":35,"time":1783279410880,"data":{"turn":2,"step":1}} -{"type":"request/header","seq":36,"time":1783279410880,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"resume"}} +{"type":"request/header","seq":36,"time":1783279410880,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"resume"}} {"type":"assistant/chunk","seq":37,"time":1783279411585,"data":{"turn":2,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":38,"time":1783279411586,"data":{"turn":2,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":39,"time":1783279411711,"data":{"turn":2,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl index a6db6dfea8..7ad6a65ff4 100644 --- a/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279408071,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279408071,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is MARMALADE. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279408072,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279408073,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279408073,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-yKv3Ie.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279408758,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279408758,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279408906,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl index 1810859570..3adb8bde24 100644 --- a/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279418198,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279418198,"data":{"content":[{"type":"text","text":"Reply with exactly the word ALPHA and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279418198,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279418198,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279418198,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279418756,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279418756,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279418937,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl b/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl index 26577d9d2a..2dc89a2565 100644 --- a/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279415444,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279415445,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is SAFFRON. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279415446,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279415446,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279415446,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279416146,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279416146,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279416310,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} @@ -29,7 +29,7 @@ {"type":"turn/start","seq":27,"time":1783279420404,"data":{"turn":2,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":28,"time":1783279420404,"data":{"content":[{"type":"text","text":"What is the project codeword mentioned earlier in this conversation? Reply with exactly that one word and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":29,"time":1783279420405,"data":{"turn":2,"step":1}} -{"type":"request/header","seq":30,"time":1783279420405,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"resume"}} +{"type":"request/header","seq":30,"time":1783279420405,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"resume"}} {"type":"assistant/chunk","seq":31,"time":1783279421097,"data":{"turn":2,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":32,"time":1783279421098,"data":{"turn":2,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":33,"time":1783279421204,"data":{"turn":2,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl index 8f81f749dc..0b44f0ad62 100644 --- a/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-mixed/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279415444,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279415445,"data":{"content":[{"type":"text","text":"Remember this fact for later: the project codeword is SAFFRON. Reply with the single word OK and stop. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279415446,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279415446,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279415446,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-h3RUf6.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279416146,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279416146,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279416310,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl index 06afc5ba51..d53c75e164 100644 --- a/examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279402204,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279402204,"data":{"content":[{"type":"text","text":"Reply with exactly the word ALPHA and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279402205,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279402205,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279402205,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279402608,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279402608,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279402723,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl b/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl index bc2df16ebf..104b64e898 100644 --- a/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279403730,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279403730,"data":{"content":[{"type":"text","text":"Reply with exactly the word BETA and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279403730,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279403730,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279403730,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279404370,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279404370,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279404532,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl index d8e67ff114..d4eda1c528 100644 --- a/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279400642,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279400642,"data":{"content":[{"type":"text","text":"Use the subagent tool TWICE, once at a time, to delegate two subtasks to child agents. First subtask: 'Reply with exactly the word ALPHA and nothing else.' Second subtask (after the first returns): 'Reply with exactly the word BETA and nothing else.' After both subagents return, reply with the single word PARENT_DONE and stop. Do not use the bash tool."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279400643,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279400646,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279400646,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-tIoYon.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279401312,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279401312,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279401437,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl index 88858591da..403dd33683 100644 --- a/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279396597,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279396597,"data":{"content":[{"type":"text","text":"Reply with exactly the word CHILD_OK and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279396598,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279396598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-JrLIIO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279396598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-JrLIIO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279397154,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279397154,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279397252,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl index 86444be14c..284b863255 100644 --- a/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279395301,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279395302,"data":{"content":[{"type":"text","text":"Use the subagent tool exactly once to delegate this subtask to a child agent: 'Reply with exactly the word CHILD_OK and nothing else.' After the subagent returns, reply with the single word PARENT_DONE and stop. Do not use the bash tool."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279395303,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279395304,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-JrLIIO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279395304,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-JrLIIO.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279395862,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279395862,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279395973,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl index aaa9f9777a..2532b5d24a 100644 --- a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279329596,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279329596,"data":{"content":[{"type":"text","text":"Reply with exactly the word: PONG. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279329598,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279329598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-q0sbE9.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279329598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-q0sbE9.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279330062,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279330062,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279330154,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl b/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl index 09f6ca18d7..c9cb679001 100644 --- a/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl +++ b/examples/acp-agent/tests/snapshots/todo-plan/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279342895,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279342896,"data":{"content":[{"type":"text","text":"Use the todo_write tool to record a plan with exactly three todos: \"read the code\" (in_progress), \"write the fix\" (pending), \"run the tests\" (pending). Send all three in one todo_write call. Then reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279342897,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279342898,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-t9J1QD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279342898,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-t9J1QD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279343592,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279343592,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279343701,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl b/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl index f2a7d35cdb..f6c34bbc24 100644 --- a/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279332863,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279332864,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo SNAPSHOT_OK. Then reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279332865,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279332868,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-lH9qMe.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279332868,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-lH9qMe.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279333505,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279333505,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279333653,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl b/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl index 3703d26fd5..32aff31d59 100644 --- a/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl +++ b/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"A file named greeting.txt in the current directory contains one word. Use the bash tool to append a second line containing the word WORLD to it (so it has two lines), then read the file back with `cat greeting.txt` to confirm, and reply with the single word DONE. Use a single bash call per action."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Skills\nAvailable skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.\n\n\ndescription: Create or update DeepSeek Harness Cordis plugins and packages.\n\n\ndescription: Create or update DeepSeek Harness SKILL.md instructions.\nwhenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.\n\n","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":0,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"Let"}}} {"type":"assistant/chunk","seq":6,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}} diff --git a/packages/core/README.md b/packages/core/README.md index 0660ededc7..f0f6a38d3d 100644 --- a/packages/core/README.md +++ b/packages/core/README.md @@ -7,12 +7,13 @@ The packages every harness build is assembled from: the session log, the system- | `session/` | Event-sourced session log + in-memory store | `ctx.sessions` | | `system-prompt/` | Prompt-section + tool-schema assembly registry | `ctx.systemPrompt` | | `tools/` | Tool registry + `tools/pre-execute`/`tools/post-execute` pipeline | `ctx.tools` | -| `skill/` | Agent skill discovery + request-time skill listing | `ctx.skills` | +| `skill/` | Agent skill provider registry + request-time skill listing | `ctx.skills` | +| `skill-local/` | Local filesystem skill provider | (registers on `ctx.skills`) | | `tool-skill/` | Model-facing `skill` loader tool | (registers on `ctx.tools`) | | `agent/` | Agent interface, registry, `agent/*` event vocabulary | `ctx.agents` | | `agent-loop/` | The concrete loop plugin: `ReactLoopAgent` + the loop driver | `ctx.agentLoop` | -| `agent-core/` | Bundle plugin: the providerless/executor-less/UI-less spine as code | (loads the spine) | +| `agent-core/` | Bundle plugin: the default executor-less/UI-less spine as code | (loads the spine) | `agent-loop` is the one concrete implementation of the `agent` seam and lives here because it is the harness's default product loop; everything else in `core/` is interface/vocabulary. Plugins depend on the `agent` vocabulary, never on `agent-loop` directly, so the loop stays swappable. -`agent-core` is the composition counterpart: one bundle plugin that loads the whole providerless spine (`timer` + `llm` + sessions + system-prompt + tools + skills + agents + invariants + `tool-bash` + `tool-skill` + `agent-loop`) and forwards `agent-loop`'s `agents` list as its own config. App packages (`ui/stdio-agent`, `ui/acp-agent`) consume it and add only a front door; a leaf adds the swappable backends plus any optional product tools it wants to expose. It lives in `core/` because it composes exclusively `core/` + interface packages and ships no provider, executor, or UI of its own. +`agent-core` is the composition counterpart: one bundle plugin that loads the default spine (`timer` + `llm` + sessions + system-prompt + tools + skill registry + local skill provider + agents + invariants + `tool-bash` + `tool-skill` + `agent-loop`) and forwards `agent-loop`'s `agents` list as its own config. App packages (`ui/stdio-agent`, `ui/acp-agent`) consume it and add only a front door; a leaf adds the swappable backends plus any optional product tools it wants to expose. It lives in `core/` because it composes the shared core while leaving executors, LLM adapters, non-local skill providers, and UI front doors outside the bundle. diff --git a/packages/core/agent-core/README.md b/packages/core/agent-core/README.md index 353e68332d..abc1350be2 100644 --- a/packages/core/agent-core/README.md +++ b/packages/core/agent-core/README.md @@ -1,6 +1,6 @@ # @deepseek-ai/dsh-agent-core -The **providerless, executor-less, UI-less agent spine** as ONE Cordis bundle plugin. It loads the fixed set of services every harness agent needs and forwards the loop's `agents` list as its own config — so an app package composes a working agent by adding only a front door and the swappable backends. +The **default executor-less, UI-less agent spine** as ONE Cordis bundle plugin. It loads the fixed set of services every harness agent needs, including the local skill provider, and forwards the loop's `agents` list as its own config — so an app package composes a working agent by adding only a front door and the swappable backends. This is the package to read to see **the whole plugin tree at once** — the teaching role the inlined `echo-agent` `cordis.yml` used to play before the spine moved behind this bundle. @@ -14,9 +14,12 @@ This is the package to read to see **the whole plugin tree at once** — the tea @deepseek-ai/dsh-session event-sourced session log + store @deepseek-ai/dsh-system-prompt prompt-section + tool-schema assembly @deepseek-ai/dsh-tools tool registry + tools/pre-execute/post-execute +@deepseek-ai/dsh-skill skill provider registry + prompt listing +@deepseek-ai/dsh-skill-local local filesystem skill provider @deepseek-ai/dsh-agent agent registry + agent/* event vocabulary @deepseek-ai/dsh-invariants dev-mode event-contract assertions @deepseek-ai/dsh-tool-bash the model-facing bash/bash_output/bash_kill schemas +@deepseek-ai/dsh-tool-skill the model-facing skill loader schema @deepseek-ai/dsh-agent-loop THE concrete loop (gets the forwarded `agents`) (dsh-system-prompt gets the forwarded `persona`) ``` @@ -27,6 +30,7 @@ The spine is everything COMMON to every front door. The swappable and front-door - **the LLM adapter** — the bundle ships the abstract `llm` service; the leaf registers a concrete adapter on `ctx.llm` (`llm-deepseek`, `llm-pi-ai`, `llm-replay`). - **the bash executor** — the bundle ships `tool-bash` (the consumer schema); the leaf provides `ctx.bash` (`bash-local` or a sandboxed impl). +- **non-local skill providers** — the bundle ships the skill registry, the local filesystem provider, and the `skill` tool; deployments can add other providers such as embedded or remote catalogs as siblings. - **presentation + per-app infra** — the stdio UI / ACP bridge, a console logger, `hmr`. These form the coupled "front-door cluster" that the app packages ([`dsh-stdio-agent`](../../ui/stdio-agent/README.md), [`dsh-acp-agent`](../../ui/acp-agent/README.md)) bake in. `timer` is in the spine (common to both, stdout-silent); a console logger is NOT (it writes to stdout, which the ACP bridge reserves for JSON-RPC). This is the [interface/implementation/consumer seam](../../../docs/rfc/implemented/architecture/2026-06-13-capability-seams.md) raised to the composition level: the bundle owns the shared spine, the leaf owns the backends, the app package owns the front door. @@ -35,11 +39,12 @@ This is the [interface/implementation/consumer seam](../../../docs/rfc/implement ```ts import type { Config } from '@deepseek-ai/dsh-agent-core' -// { agents?, persona? } — the schema is z.intersect([AgentLoop.Config, SystemPrompt.Config]), -// so validation and defaulting can never drift from the owners'. +// { agents?, persona?, skills? } — the schema is z.intersect([AgentLoop.Config, +// SystemPrompt.Config, { skills }]), so validation and defaulting can never +// drift from the owners'. ``` -The bundle FORWARDS each field to the child that owns it: `agents` to `agent-loop` (default `[]`), so each app supplies its own pre-created agents — a stdio app pre-creates a `main`; the ACP app pre-creates none (it creates agents on demand at `session/new`) — and `persona` to `dsh-system-prompt` (default `''`), the deployment's persona section. Forwarding is exactly why the owners can live in the shared spine even though the apps disagree on what to configure. +The bundle FORWARDS each field to the child that owns it: `agents` to `agent-loop` (default `[]`), so each app supplies its own pre-created agents — a stdio app pre-creates a `main`; the ACP app pre-creates none (it creates agents on demand at `session/new`) — `persona` to `dsh-system-prompt` (default `''`), and `skills.registry` / `skills.local` to the skill registry and local provider. Forwarding is exactly why the owners can live in the shared spine even though the apps disagree on what to configure. ## Why a code bundle, not a shared YAML include diff --git a/packages/core/agent-core/package.json b/packages/core/agent-core/package.json index b6778a5ead..039a6ac505 100644 --- a/packages/core/agent-core/package.json +++ b/packages/core/agent-core/package.json @@ -1,6 +1,6 @@ { "name": "@deepseek-ai/dsh-agent-core", - "description": "The providerless/executor-less/UI-less agent spine as one Cordis bundle plugin (timer + llm + sessions + system-prompt + tools + agents + invariants + tool-bash + agent-loop)", + "description": "The default executor-less/UI-less agent spine as one Cordis bundle plugin (timer + llm + sessions + system-prompt + tools + skills + agents + invariants + tool-bash + tool-skill + agent-loop)", "version": "0.0.1", "private": true, "type": "module", @@ -29,6 +29,7 @@ "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-session": "^0.0.1", "@deepseek-ai/dsh-skill": "^0.0.1", + "@deepseek-ai/dsh-skill-local": "^0.0.1", "@deepseek-ai/dsh-system-prompt": "^0.0.1", "@deepseek-ai/dsh-tool-bash": "^0.0.1", "@deepseek-ai/dsh-tool-skill": "^0.0.1", @@ -43,6 +44,7 @@ "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", "@deepseek-ai/dsh-skill": "workspace:^", + "@deepseek-ai/dsh-skill-local": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "@deepseek-ai/dsh-tool-bash": "workspace:^", "@deepseek-ai/dsh-tool-skill": "workspace:^", diff --git a/packages/core/agent-core/src/index.ts b/packages/core/agent-core/src/index.ts index 84f532ec34..86cc26546b 100644 --- a/packages/core/agent-core/src/index.ts +++ b/packages/core/agent-core/src/index.ts @@ -1,10 +1,10 @@ /** - * The providerless, executor-less, UI-less agent spine as ONE bundle plugin. + * The default executor-less, UI-less agent spine as ONE bundle plugin. * * Loads the fixed set of services every harness agent needs — `timer`, the LLM * service, the session store, system-prompt assembly, the tool registry, the - * skill registry, the agent registry, the dev-mode invariants, the model-facing - * `bash` and `skill` tool schemas, and the concrete `agent-loop` — and forwards the loop's `agents` + * skill registry plus local skill provider, the agent registry, the dev-mode + * invariants, the model-facing `bash` and `skill` tool schemas, and the concrete `agent-loop` — and forwards the loop's `agents` * list as its OWN config (default `[]`), so each app supplies its own * pre-created agents. * @@ -19,6 +19,9 @@ * (a console logger, `hmr`) — these are the coupled "front-door cluster" the * app packages ({@link @deepseek-ai/dsh-stdio-agent}, * {@link @deepseek-ai/dsh-acp-agent}) bake in, NOT the shared spine. + * - additional SKILL PROVIDERS; the bundle ships the local filesystem provider + * because local skills are default agent behavior, while embedded or remote + * providers remain deployment choices. * * This is the interface/implementation/consumer seam at the composition level: * the bundle owns the shared spine, the leaf owns the backends, the app package @@ -49,7 +52,8 @@ import LlmService from '@deepseek-ai/dsh-llm' import SessionStore from '@deepseek-ai/dsh-session' import SystemPrompt, { type Config as SystemPromptConfig } from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' -import SkillService, { type Config as SkillConfig } from '@deepseek-ai/dsh-skill' +import SkillService, { type Config as SkillRegistryConfig } from '@deepseek-ai/dsh-skill' +import * as SkillLocal from '@deepseek-ai/dsh-skill-local' import AgentRegistry from '@deepseek-ai/dsh-agent' import * as invariants from '@deepseek-ai/dsh-invariants' import * as toolBash from '@deepseek-ai/dsh-tool-bash' @@ -58,12 +62,20 @@ import AgentLoop, { type Config as AgentLoopConfig } from '@deepseek-ai/dsh-agen export const name = 'agent-core' +/** Skill bundle config forwarded to the registry and the local provider. */ +export interface SkillConfig { + /** Registry-level prompt/cache settings. */ + registry?: SkillRegistryConfig + /** Local filesystem skill provider settings. */ + local?: SkillLocal.Config +} + /** * Bundle config: each field forwarded verbatim to the child that owns it — * `agents` to the agent loop (an app that pre-creates no agents, like the ACP * bridge, simply omits it), `persona` to the system-prompt plugin (the - * deployment's persona section), and `skills` to the skill service. All three - * are optional INPUT here because each owner's schema supplies the default + * deployment's persona section), and `skills` to the skill registry/local + * provider. All three are optional INPUT here because each owner's schema supplies the default * (`[]` / `''` / the DSH skill roots); the schema is the INTERSECTION of the * owners' own schemas, so validation and defaulting can never drift from them. */ @@ -72,12 +84,15 @@ export interface Config { agents?: AgentLoopConfig['agents'] /** The deployment persona (see dsh-system-prompt's `Config`). */ persona?: SystemPromptConfig['persona'] - /** Skill discovery roots, system-skill installation, and prompt/cache bounds. */ + /** Skill registry and local provider config. */ skills?: SkillConfig } /** The skill config schema exported for app packages that forward `skills`. */ -export const SkillConfigSchema = SkillService.Config +export const SkillConfigSchema: z = z.object({ + registry: SkillService.Config, + local: SkillLocal.Config, +}) /** Intersect the owners' schemas so validation + defaulting stay identical. */ export const Config = z.intersect([ @@ -105,12 +120,11 @@ export function apply(ctx: Context, config: Config): void { // introduce different ones. ctx.plugin(SystemPrompt, { persona: config.persona ?? '' }) ctx.plugin(ToolRegistry) - ctx.plugin(SkillService, config.skills ?? {}) + ctx.plugin(SkillService, config.skills?.registry ?? {}) + ctx.plugin(SkillLocal, config.skills?.local ?? {}) ctx.plugin(AgentRegistry) ctx.plugin(invariants) ctx.plugin(toolBash) ctx.plugin(toolSkill) ctx.plugin(AgentLoop, { agents: config.agents ?? [] }) } - -export type { SkillConfig } diff --git a/packages/core/agent-core/tests/agent-core.spec.ts b/packages/core/agent-core/tests/agent-core.spec.ts index 7c6e4840b5..9e4f5b7eed 100644 --- a/packages/core/agent-core/tests/agent-core.spec.ts +++ b/packages/core/agent-core/tests/agent-core.spec.ts @@ -1,5 +1,5 @@ import { describe, expect, it } from 'vitest' -import { mkdtemp } from 'node:fs/promises' +import { mkdir, mkdtemp, writeFile } from 'node:fs/promises' import { join } from 'node:path' import { tmpdir } from 'node:os' import { Context } from 'cordis' @@ -9,7 +9,7 @@ import { AgentId } from '@deepseek-ai/dsh-agent' /** * Unit coverage for the @deepseek-ai/dsh-agent-core bundle: mounting it brings - * up the whole providerless spine in one `ctx.plugin`, and the forwarded + * up the whole default spine in one `ctx.plugin`, and the forwarded * `agents` config reaches the loop (default `[]`, or a pre-created agent). * * The bundle is exercised through `ctx.plugin(agentCore, …)` — the NAMESPACE @@ -65,7 +65,7 @@ async function withIsolatedSkillHomes(run: () => Promise): Promise { } describe('dsh-agent-core bundle', () => { - it('brings up the full providerless spine', async () => { + it('brings up the full default spine', async () => { const ctx = await mount() // One service from each layer of the spine proves the children loaded. expect(ctx.get('timer')).toBeDefined() @@ -79,15 +79,12 @@ describe('dsh-agent-core bundle', () => { await ctx.fiber.dispose() }) - it('includes the default skill system and skill tool', async () => { + it('includes the skill registry, local provider, and skill tool without builtin skills', async () => { const ctx = await mount() expect(ctx.skills).toBeDefined() expect(ctx.tools.schemas().map(tool => tool.name)).toContain('skill') - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(expect.arrayContaining([ - 'dsh-plugin-creator', - 'dsh-skill-creator', - ])) + expect(await ctx.skills.list()).toEqual([]) await ctx.fiber.dispose() }) @@ -122,18 +119,25 @@ describe('dsh-agent-core bundle', () => { await ctx.fiber.dispose() }) - it('forwards skill config to the skill service', async () => { + it('forwards skill config to the registry and local provider', async () => { const home = await mkdtemp(join(tmpdir(), 'dsh-agent-core-skill-home-')) const agentsHome = await mkdtemp(join(tmpdir(), 'dsh-agent-core-skill-agents-')) + const custom = await mkdtemp(join(tmpdir(), 'dsh-agent-core-skill-custom-')) + await mkdir(custom, { recursive: true }) + await writeFile(join(custom, 'custom-skill.md'), '---\nname: custom-skill\ndescription: Custom skill\n---\n\nCustom body.\n') const ctx = await mount({ agents: [], skills: { - dshHome: join(home, '.dsh'), - agentsHome: join(agentsHome, '.agents'), - installSystemSkills: false, + registry: { promptFieldMaxLength: 6 }, + local: { + dshHome: join(home, '.dsh'), + agentsHome: join(agentsHome, '.agents'), + customSkillDirs: [custom], + }, }, }) - expect(await ctx.skills.list()).toEqual([]) + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['custom-skill']) + expect(await ctx.skills.renderModelListing()).toContain('description: Cus...') await ctx.fiber.dispose() }) @@ -143,10 +147,7 @@ describe('dsh-agent-core bundle', () => { agentCore.apply(ctx, { agents: [] }) await new Promise(resolve => setTimeout(resolve, 50)) expect(ctx.skills).toBeDefined() - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(expect.arrayContaining([ - 'dsh-plugin-creator', - 'dsh-skill-creator', - ])) + expect(await ctx.skills.list()).toEqual([]) await ctx.fiber.dispose() }) }) diff --git a/packages/core/agent-core/tsconfig.json b/packages/core/agent-core/tsconfig.json index fb8ed365f7..394ecf1fc3 100644 --- a/packages/core/agent-core/tsconfig.json +++ b/packages/core/agent-core/tsconfig.json @@ -35,6 +35,9 @@ { "path": "../../core/skill" }, + { + "path": "../../core/skill-local" + }, { "path": "../../core/tool-skill" }, diff --git a/packages/core/skill-local/README.md b/packages/core/skill-local/README.md new file mode 100644 index 0000000000..5fedc92bc4 --- /dev/null +++ b/packages/core/skill-local/README.md @@ -0,0 +1,37 @@ +# @deepseek-ai/dsh-skill-local + +Local filesystem provider for the `ctx.skills` registry. + +This package implements one skill source. It scans local project, custom, and user skill roots, parses `SKILL.md` or flat Markdown skill files, and registers the provider on `ctx.skills`. The registry, prompt listing, and model-facing loader tool remain in `@deepseek-ai/dsh-skill` and `@deepseek-ai/dsh-tool-skill`. + +## Plugin + +Requires `ctx.skills` (`inject: ['skills']`). + +### Config + +| Field | Default | Meaning | +|---|---|---| +| `dshHome` | `$DSH_HOME` or `~/.dsh` | DeepSeek Harness config root; scans `skills` under this directory. | +| `agentsHome` | `$DSH_AGENTS_HOME` or `~/.agents` | Shared agent config root scanned for compatible skills. | +| `customSkillDirs` | `[]` | Additional local skill roots scanned after project roots and before user roots. | + +## Discovery + +Default roots are resolved in this provider's rank order: + +| Rank | Source | Path | +|---|---|---| +| 100 | `project-dsh` | `/.dsh/skills` | +| 200 | `project-agents` | `/.agents/skills` | +| 300 | `custom` | `Config.customSkillDirs` | +| 400 | `user-dsh` | `/skills` | +| 500 | `user-agents` | `/skills` | + +The project root is the nearest ancestor containing `.git`; without one, the current cwd is used. The user DSH root skips its `.system` child so system-owned directories are not accidentally treated as normal user skills. DeepSeek Harness no longer ships built-in system skills from this provider; additional built-ins can be supplied later by another provider. + +When `ctx.fs` is available, discovery lists roots through `ctx.fs.listDir`, reads skill files through `ctx.fs.readText`, and probes `.git` through the filesystem service. Without a filesystem service, the provider falls back to Node filesystem I/O so minimal local contexts can still load skills. Missing, unreadable, or malformed skill files warn and skip instead of failing the whole request. + +## Skill Format + +Skills can be single-level directory bundles (`/SKILL.md`) or flat Markdown files (`.md`). Nested `**/SKILL.md` discovery is intentionally not part of v1. Frontmatter is parsed as YAML with the `yaml` package; it requires `name` and `description`, while `whenToUse`, `disableModelInvocation`, and `metadata` are optional. Names must be kebab-case. diff --git a/packages/core/skill-local/package.json b/packages/core/skill-local/package.json new file mode 100644 index 0000000000..dcacc5960a --- /dev/null +++ b/packages/core/skill-local/package.json @@ -0,0 +1,38 @@ +{ + "name": "@deepseek-ai/dsh-skill-local", + "description": "Local filesystem skill provider for the DeepSeek Harness", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-fs": "^0.0.1", + "@deepseek-ai/dsh-skill": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "schemastery": "^3.18.0", + "yaml": "^2.4.2" + }, + "devDependencies": { + "@deepseek-ai/dsh-fs": "workspace:^", + "@deepseek-ai/dsh-skill": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/core/skill-local/src/index.ts b/packages/core/skill-local/src/index.ts new file mode 100644 index 0000000000..e0953110b6 --- /dev/null +++ b/packages/core/skill-local/src/index.ts @@ -0,0 +1,413 @@ +/** + * Local filesystem skill provider. + * + * This package is one implementation of the `ctx.skills` provider registry. It + * discovers directory-bundle and flat Markdown skills from project, custom, and + * user roots, parses YAML frontmatter, and loads bodies through `ctx.fs` when a + * filesystem service is present. + * + * @module @deepseek-ai/dsh-skill-local + */ + +import { access, readdir, readFile, stat } from 'node:fs/promises' +import { dirname, join, resolve } from 'node:path' +import { homedir } from 'node:os' +import type { Context } from 'cordis' +import z from 'schemastery' +import type Schema from 'schemastery' +import { parse as parseYaml } from 'yaml' +import type { FileSystem, FsDirEntry, FsTarget } from '@deepseek-ai/dsh-fs' +import { + isSkillName, + type SkillCandidate, + type SkillDefinition, + type SkillLookupOptions, + type SkillProvider, + type SkillSource, +} from '@deepseek-ai/dsh-skill' + +const PROJECT_DSH_RANK = 100 +const PROJECT_AGENTS_RANK = 200 +const CUSTOM_RANK = 300 +const USER_DSH_RANK = 400 +const USER_AGENTS_RANK = 500 + +export const name = 'skill-local' +export const inject = ['skills'] + +/** Local filesystem skill provider configuration. */ +export interface Config { + /** DeepSeek Harness config root. Defaults to `$DSH_HOME` or `~/.dsh`. */ + dshHome?: string + /** Shared agent config root. Defaults to `$DSH_AGENTS_HOME` or `~/.agents`. */ + agentsHome?: string + /** Additional skill roots scanned after project roots and before user roots. */ + customSkillDirs?: string[] +} + +export const Config: Schema = z.object({ + dshHome: z.string(), + agentsHome: z.string(), + customSkillDirs: z.array(z.string()).default([]), +}) + +interface SkillRoot { + path: string + source: SkillSource + rank: number + skipSystem?: boolean +} + +interface SkillRootEntry { + name: string + type: 'directory' | 'file' | 'other' + path: string +} + +interface ParsedSkill { + name: string + description: string + whenToUse?: string + disableModelInvocation?: boolean + metadata?: Record + content: string +} + +interface LocalLocator { + path: string + directory: string +} + +/** Register the local filesystem skill provider on `ctx.skills`. */ +export function apply(ctx: Context, config: Config = {}): void { + const provider = new LocalSkillProvider(ctx, config) + ctx.skills.registerProvider(provider) +} + +/** Provider that maps local project/user skill roots into `ctx.skills`. */ +export class LocalSkillProvider implements SkillProvider { + readonly name = 'local' + private readonly dshHome: string + private readonly agentsHome: string + private readonly customSkillDirs: string[] + + constructor(private readonly ctx: Context, config: Config = {}) { + this.dshHome = resolve(config.dshHome ?? process.env.DSH_HOME ?? join(homedir(), '.dsh')) + this.agentsHome = resolve(config.agentsHome ?? process.env.DSH_AGENTS_HOME ?? join(homedir(), '.agents')) + this.customSkillDirs = (config.customSkillDirs ?? []).map(root => resolve(root)) + } + + /** + * Discover local skill summaries for a cwd-sensitive workspace. + * @param options - lookup options; `cwd` selects the project roots to scan. + * @returns local provider candidates with stable root ranks. + */ + async list(options: SkillLookupOptions): Promise { + const roots = await this.roots(options.cwd) + const candidates: SkillCandidate[] = [] + for (const root of roots) { + for (const skill of await discoverRoot(root, this.ctx)) { + candidates.push(skill) + } + } + return candidates + } + + /** + * Load a complete local skill body from the candidate's file locator. + * @param candidate - the winning candidate returned by this provider. + * @returns the full local skill, or `undefined` if the file disappeared. + */ + async get(candidate: SkillCandidate): Promise { + const locator = candidate.locator as LocalLocator + const parsed = await parseSkillFile(locator.path, this.ctx) + if (parsed === undefined) return undefined + return { + name: parsed.name, + description: parsed.description, + ...parsed.whenToUse !== undefined ? { whenToUse: parsed.whenToUse } : {}, + ...parsed.disableModelInvocation !== undefined ? { disableModelInvocation: parsed.disableModelInvocation } : {}, + source: candidate.source, + provider: this.name, + resourceBase: { kind: 'directory', path: locator.directory }, + path: locator.path, + ...parsed.metadata !== undefined ? { metadata: parsed.metadata } : {}, + content: parsed.content, + } + } + + private async roots(cwd: string | undefined): Promise { + const roots: SkillRoot[] = [] + if (cwd !== undefined) { + const projectRoot = await findProjectRoot(resolve(cwd), optionalFileSystem(this.ctx)) + roots.push( + { path: join(projectRoot, '.dsh/skills'), source: 'project-dsh', rank: PROJECT_DSH_RANK }, + { path: join(projectRoot, '.agents/skills'), source: 'project-agents', rank: PROJECT_AGENTS_RANK }, + ) + } + roots.push( + ...this.customSkillDirs.map(path => ({ path, source: 'custom' as const, rank: CUSTOM_RANK })), + { path: join(this.dshHome, 'skills'), source: 'user-dsh', rank: USER_DSH_RANK, skipSystem: true }, + { path: join(this.agentsHome, 'skills'), source: 'user-agents', rank: USER_AGENTS_RANK }, + ) + return roots + } +} + +async function discoverRoot(root: SkillRoot, ctx: Context): Promise { + const skills: SkillCandidate[] = [] + const entries = await listSkillRootEntries(root, ctx) + for (const entry of entries.sort((a, b) => a.name.localeCompare(b.name))) { + if (root.skipSystem && entry.name === '.system') continue + const locator = entry.type === 'directory' + ? { path: join(entry.path, 'SKILL.md'), directory: entry.path } + : entry.type === 'file' && entry.name.endsWith('.md') + ? { path: entry.path, directory: root.path } + : undefined + if (locator === undefined) continue + const parsed = await parseSkillFile(locator.path, ctx) + if (parsed === undefined) continue + skills.push({ + name: parsed.name, + description: parsed.description, + ...parsed.whenToUse !== undefined ? { whenToUse: parsed.whenToUse } : {}, + ...parsed.disableModelInvocation !== undefined ? { disableModelInvocation: parsed.disableModelInvocation } : {}, + provider: 'local', + source: root.source, + rank: root.rank, + locator, + resourceBase: { kind: 'directory', path: locator.directory }, + path: locator.path, + ...parsed.metadata !== undefined ? { metadata: parsed.metadata } : {}, + }) + } + return skills +} + +async function listSkillRootEntries(root: SkillRoot, ctx: Context): Promise { + const fs = optionalFileSystem(ctx) + if (fs !== undefined) return await listSkillRootEntriesFromFileSystem(root, fs) + return await listSkillRootEntriesFromNode(root, ctx) +} + +async function listSkillRootEntriesFromFileSystem(root: SkillRoot, fs: FileSystem): Promise { + // Skill roots are optional; an absent or unlistable root contributes no skills. + const entries = await fsListDir(fs, root.path).catch(() => undefined) + return entries === undefined ? [] : entries.map(entryFromFs) +} + +async function fsListDir(fs: FileSystem, path: string): Promise { + const target = await fs.resolve(path) + return await fs.listDir(target) +} + +function entryFromFs(entry: FsDirEntry): SkillRootEntry { + return { name: entry.name, type: entry.type, path: entry.target.displayPath } +} + +async function listSkillRootEntriesFromNode(root: SkillRoot, ctx: Context): Promise { + let entries + try { + entries = await readdir(root.path, { withFileTypes: true, encoding: 'utf8' }) + } catch { + // Missing or unreadable local skill roots are expected in most deployments. + return [] + } + + const result: SkillRootEntry[] = [] + for (const entry of entries) { + const path = join(root.path, entry.name) + const type = await nodeEntryKind(path, entry, ctx) + result.push({ name: entry.name, type: type ?? 'other', path }) + } + return result +} + +async function parseSkillFile(path: string, ctx: Context): Promise { + const raw = await readSkillText(ctx, path) + if (raw === undefined) { + return undefined + } + let parsed + try { + parsed = parseFrontmatter(raw) + } catch (error) { + ctx.logger.warn(`skill file ${path} ignored: invalid YAML frontmatter: ${errorMessage(error)}`) + return undefined + } + if (!parsed) { + ctx.logger.warn(`skill file ${path} ignored: missing YAML frontmatter`) + return undefined + } + const name = stringField(parsed.data, 'name') + const description = stringField(parsed.data, 'description') + if (name === undefined || description === undefined) { + ctx.logger.warn(`skill file ${path} ignored: frontmatter requires name and description`) + return undefined + } + if (!isSkillName(name)) { + ctx.logger.warn(`skill file ${path} ignored: invalid skill name "${name}"`) + return undefined + } + return { + name, + description, + ...optionalString(parsed.data, 'whenToUse'), + ...optionalBoolean(parsed.data, 'disableModelInvocation'), + ...optionalMetadata(parsed.data), + content: parsed.body.trim(), + } +} + +function optionalFileSystem(ctx: Context): FileSystem | undefined { + return ctx.get('fs') +} + +async function readSkillText(ctx: Context, path: string): Promise { + const fs = optionalFileSystem(ctx) + if (fs !== undefined) { + return await readSkillTextFromFileSystem(ctx, fs, path) + } + try { + return await readFile(path, 'utf8') + } catch { + return undefined + } +} + +async function readSkillTextFromFileSystem(ctx: Context, fs: FileSystem, path: string): Promise { + // A missing or temporarily inaccessible skill file is not fatal to discovery. + const target = await fs.resolve(path).catch(() => undefined) + if (target === undefined) return undefined + const info = await fs.stat(target).catch((error: unknown) => { + ctx.logger.warn(`skill file ${path} ignored: failed to stat through filesystem service: ${errorMessage(error)}`) + return undefined + }) + if (info === undefined || info.type !== 'file') return undefined + try { + return await fs.readText(target) + } catch (error) { + ctx.logger.warn(`skill file ${path} ignored: ${fsReadErrorMessage(target, error)}`) + return undefined + } +} + +function fsReadErrorMessage(target: FsTarget, error: unknown): string { + return `failed to read text file at ${target.displayPath}: ${errorMessage(error)}` +} + +async function nodeEntryKind(fullPath: string, entry: { isDirectory(): boolean; isFile(): boolean; isSymbolicLink(): boolean }, ctx: Context): Promise<'directory' | 'file' | undefined> { + if (entry.isDirectory()) return 'directory' + if (entry.isFile()) return 'file' + /* v8 ignore next -- Non-file directory entries such as FIFOs are platform-specific and intentionally skipped. */ + if (!entry.isSymbolicLink()) return undefined + try { + const info = await stat(fullPath) + if (info.isDirectory()) return 'directory' + if (info.isFile()) return 'file' + return undefined + } catch (error) { + ctx.logger.warn(`skill entry ${fullPath} ignored: failed to follow symbolic link: ${errorMessage(error)}`) + return undefined + } +} + +function parseFrontmatter(raw: string): { data: Record; body: string } | undefined { + const firstLineEnd = raw.indexOf('\n') + if (firstLineEnd < 0) return undefined + const firstLine = raw.slice(0, firstLineEnd).replace(/\r$/, '') + if (firstLine !== '---') return undefined + const start = firstLineEnd + 1 + const closing = findClosingFrontmatter(raw, start) + if (closing === undefined) return undefined + const yaml = raw.slice(start, closing.start) + const parsed = parseYaml(yaml) as unknown + if (typeof parsed !== 'object' || parsed === null || Array.isArray(parsed)) return undefined + return { data: parsed as Record, body: raw.slice(closing.bodyStart) } +} + +function findClosingFrontmatter(raw: string, start: number): { start: number; bodyStart: number } | undefined { + let lineStart = start + while (lineStart <= raw.length) { + const nextNewline = raw.indexOf('\n', lineStart) + const lineEnd = nextNewline < 0 ? raw.length : nextNewline + const line = raw.slice(lineStart, lineEnd).replace(/\r$/, '') + if (line === '---') { + return { start: lineStart, bodyStart: nextNewline < 0 ? raw.length : nextNewline + 1 } + } + if (nextNewline < 0) return undefined + lineStart = nextNewline + 1 + } +} + +async function findProjectRoot(cwd: string, fs: FileSystem | undefined): Promise { + let current = cwd + while (true) { + if (await pathExists(join(current, '.git'), fs)) { + return current + } + const parent = dirname(current) + if (parent === current) return cwd + current = parent + } +} + +async function pathExists(path: string, fs: FileSystem | undefined): Promise { + if (fs !== undefined) { + return await pathExistsInFileSystem(path, fs) + } + return await pathExistsInNode(path) +} + +async function pathExistsInFileSystem(path: string, fs: FileSystem): Promise { + let target + try { + target = await fs.resolve(path) + } catch { + // A backend may reject or hide this candidate; continue walking upward. + return false + } + try { + return await fs.stat(target) !== undefined + } catch { + // Transient stat failures make only this git-root candidate unusable. + return false + } +} + +async function pathExistsInNode(path: string): Promise { + try { + await access(path) + return true + } catch { + // Missing host paths are expected while walking toward the filesystem root. + return false + } +} + +function stringField(data: Record, key: string): string | undefined { + const value = data[key] + return typeof value === 'string' && value.length > 0 ? value : undefined +} + +function optionalString(data: Record, key: string): { [K in typeof key]?: string } { + const value = data[key] + return typeof value === 'string' && value.length > 0 ? { [key]: value } : {} +} + +function optionalBoolean(data: Record, key: string): { [K in typeof key]?: boolean } { + const value = data[key] + return typeof value === 'boolean' ? { [key]: value } : {} +} + +function optionalMetadata(data: Record): { metadata?: Record } { + const value = data.metadata + if (typeof value === 'object' && value !== null && !Array.isArray(value)) { + return { metadata: value as Record } + } + return {} +} + +function errorMessage(error: unknown): string { + return String(error) +} diff --git a/packages/core/skill-local/tests/skill-local.spec.ts b/packages/core/skill-local/tests/skill-local.spec.ts new file mode 100644 index 0000000000..5c981cb0e0 --- /dev/null +++ b/packages/core/skill-local/tests/skill-local.spec.ts @@ -0,0 +1,352 @@ +import { describe, expect, it } from 'vitest' +import { mkdir, readdir, readFile, stat, symlink, writeFile } from 'node:fs/promises' +import { dirname, join } from 'node:path' +import { tmpdir } from 'node:os' +import { Context } from 'cordis' +import SkillService from '@deepseek-ai/dsh-skill' +import { FileSystem, FsVersion, type FsDirEntry, type FsEditOutcome, type FsEditRequest, type FsInfo, type FsTarget, type FsWriteOutcome } from '@deepseek-ai/dsh-fs' +import * as SkillLocal from '../src/index.ts' + +async function tempDir(name: string): Promise { + return await import('node:fs/promises').then(fs => fs.mkdtemp(join(tmpdir(), `dsh-${name}-`))) +} + +async function writeSkill(root: string, name: string, description: string, body = 'Use the skill.'): Promise { + const dir = join(root, name) + await mkdir(dir, { recursive: true }) + await writeFile(join(dir, 'SKILL.md'), `---\nname: ${name}\ndescription: ${description}\n---\n\n${body}\n`) +} + +async function writeFlatSkill(root: string, name: string, description: string, body = 'Flat body.'): Promise { + await mkdir(root, { recursive: true }) + await writeFile(join(root, `${name}.md`), `---\nname: ${name}\ndescription: ${description}\n---\n\n${body}\n`) +} + +class TestFileSystem extends FileSystem { + listDirCalls = 0 + failResolvePaths = new Set() + failStatPaths = new Set() + statOverrides = new Map() + + override async resolve(path: string): Promise { + if (this.failResolvePaths.has(path)) throw new Error('resolve failed') + return { targetKey: path as never, displayPath: path } + } + + override async stat(target: FsTarget): Promise { + if (this.failStatPaths.has(target.displayPath)) throw new Error('stat failed') + if (this.statOverrides.has(target.displayPath)) return this.statOverrides.get(target.displayPath) + try { + const fs = await import('node:fs/promises') + const info = await fs.stat(target.displayPath) + return { + version: FsVersion(String(info.mtimeMs)), + type: info.isFile() ? 'file' : info.isDirectory() ? 'directory' : 'other', + size: info.size, + } + } catch { + return undefined + } + } + + override async readText(target: FsTarget): Promise { + const text = await readFile(target.displayPath, 'utf8') + if (text.includes('\uFFFD')) throw new Error('not text') + return text + } + + override async streamText(_target: FsTarget): Promise> { + throw new Error('not needed in skill tests') + } + + override async listDir(target: FsTarget): Promise { + this.listDirCalls += 1 + const entries = await readdir(target.displayPath, { withFileTypes: true, encoding: 'utf8' }) + const result: FsDirEntry[] = [] + for (const entry of entries.sort((left, right) => left.name.localeCompare(right.name))) { + const childPath = join(target.displayPath, entry.name) + let type: FsInfo['type'] = 'other' + let size: number | undefined + try { + const info = await stat(childPath) + type = info.isFile() ? 'file' : info.isDirectory() ? 'directory' : 'other' + size = info.isFile() ? info.size : undefined + } catch { + type = 'other' + } + result.push({ + name: entry.name, + type, + target: { targetKey: childPath as never, displayPath: childPath }, + version: FsVersion('test'), + ...(size !== undefined ? { size } : {}), + }) + } + return result + } + + override async writeText(target: FsTarget, content: string): Promise { + await mkdir(dirname(target.displayPath), { recursive: true }) + await writeFile(target.displayPath, content) + return { operation: 'create', version: FsVersion('test'), before: null, after: content } + } + + override async editText(_target: FsTarget, _request: FsEditRequest): Promise { + throw new Error('not needed in skill tests') + } +} + +async function setupLocal(home: string, config: Partial = {}): Promise { + const ctx = new Context() + await ctx.plugin(SkillService) + await ctx.plugin(SkillLocal, { + dshHome: join(home, '.dsh'), + agentsHome: join(home, '.agents'), + ...config, + }) + return ctx +} + +describe('dsh-skill-local plugin exports', () => { + it('declares stable plugin metadata', () => { + expect(SkillLocal.name).toBe('skill-local') + expect(SkillLocal.inject).toEqual(['skills']) + }) +}) + +describe('LocalSkillProvider', () => { + it('discovers project, custom, user, and agents skill roots in priority order', async () => { + const home = await tempDir('skill-home') + const project = await tempDir('skill-project') + const custom = await tempDir('skill-custom') + await mkdir(join(project, '.git'), { recursive: true }) + + await writeSkill(join(home, '.agents/skills'), 'same', 'user agents skill') + await writeSkill(join(home, '.dsh/skills'), 'same', 'user dsh skill') + await writeSkill(custom, 'same', 'custom skill') + await writeSkill(join(project, '.agents/skills'), 'same', 'project agents skill') + await writeSkill(join(project, '.dsh/skills'), 'same', 'project dsh skill') + await writeSkill(custom, 'custom-only', 'custom only') + await writeSkill(join(home, '.dsh/skills/.system'), 'hidden-system', 'hidden system') + + const ctx = await setupLocal(home, { customSkillDirs: [custom] }) + + const skills = await ctx.skills.list({ cwd: join(project, 'src') }) + expect(skills.map(skill => [skill.name, skill.description])).toEqual([ + ['custom-only', 'custom only'], + ['same', 'project dsh skill'], + ]) + expect(skills.find(skill => skill.name === 'same')?.source).toBe('project-dsh') + expect(skills.find(skill => skill.name === 'hidden-system')).toBeUndefined() + + const noGit = await tempDir('skill-no-git') + await writeSkill(join(noGit, '.dsh/skills'), 'fallback-root', 'Fallback root') + expect((await ctx.skills.list({ cwd: noGit })).map(skill => skill.name)).toContain('fallback-root') + }) + + it('lets project skills override runtime while runtime overrides custom and user skills', async () => { + const home = await tempDir('skill-runtime-priority') + const project = await tempDir('skill-runtime-project') + const custom = await tempDir('skill-runtime-custom') + await mkdir(join(project, '.git'), { recursive: true }) + + await writeSkill(join(project, '.dsh/skills'), 'project-name', 'Project wins') + await writeSkill(custom, 'runtime-name', 'Custom loses') + await writeSkill(join(home, '.dsh/skills'), 'runtime-name', 'User loses') + + const ctx = await setupLocal(home, { customSkillDirs: [custom] }) + ctx.skills.register({ + name: 'project-name', + description: 'Runtime loses to project', + content: 'Runtime body.', + source: 'runtime', + }) + ctx.skills.register({ + name: 'runtime-name', + description: 'Runtime wins', + content: 'Runtime body.', + source: 'runtime', + }) + + expect((await ctx.skills.get('project-name', { cwd: project }))?.description).toBe('Project wins') + expect((await ctx.skills.get('runtime-name', { cwd: project }))?.description).toBe('Runtime wins') + }) + + it('parses flat skills and filters invalid or model-disabled skills from listing', async () => { + const home = await tempDir('skill-flat') + const root = join(home, '.dsh/skills') + await writeFlatSkill(root, 'flat-skill', 'flat description', 'Flat instructions.') + await writeFile(join(root, 'rich-skill.md'), [ + '---', + 'name: rich-skill', + 'description: rich description', + 'whenToUse: For richer local parsing', + 'disableModelInvocation: false', + 'metadata:', + ' owner: tests', + '---', + '', + 'Rich body.', + ].join('\n')) + await writeFile(join(root, 'bad.md'), '---\nname: Bad_Name\ndescription: bad\n---\n\nbad') + await writeFile(join(root, 'missing-description.md'), '---\nname: missing-description\n---\n\nbad') + await writeFile(join(root, 'no-frontmatter.md'), 'No frontmatter.') + await writeFile(join(root, 'plain-markdown.md'), '# Notes\nNot a skill.') + await writeFile(join(root, 'open-frontmatter.md'), '---\nname: open-frontmatter') + await writeFile(join(root, 'non-object.md'), '---\n[]\n---\n\nbad') + await writeFile(join(root, 'no-trailing-body.md'), '---\nname: no-trailing-body\ndescription: No trailing body\n---') + await writeFile(join(root, 'notes.txt'), 'ignored') + await mkdir(join(root, 'not-a-skill'), { recursive: true }) + await writeSkill(root, 'hidden-skill', 'hidden description', 'Hidden.') + await writeFile(join(root, 'hidden-skill/SKILL.md'), '---\nname: hidden-skill\ndescription: hidden description\ndisableModelInvocation: true\n---\n\nHidden.\n') + + const ctx = await setupLocal(home) + const listedBeforeDelete = await ctx.skills.list() + const flatSummary = listedBeforeDelete.find(skill => skill.name === 'flat-skill') + if (flatSummary === undefined) throw new Error('expected flat-skill') + await writeFile(join(root, 'flat-skill.md'), '') + + expect(listedBeforeDelete.map(skill => skill.name)).toEqual(['flat-skill', 'no-trailing-body', 'rich-skill']) + expect(await ctx.skills.get('flat-skill')).toBeUndefined() + expect((await ctx.skills.get('hidden-skill'))?.content).toContain('Hidden.') + expect(await ctx.skills.get('rich-skill')).toMatchObject({ + whenToUse: 'For richer local parsing', + disableModelInvocation: false, + metadata: { owner: 'tests' }, + }) + expect(await ctx.skills.get('Bad_Name')).toBeUndefined() + }) + + it('supports CRLF frontmatter and ignores delimiter-looking text inside YAML values', async () => { + const home = await tempDir('skill-frontmatter-crlf') + const root = join(home, '.dsh/skills') + await mkdir(root, { recursive: true }) + await writeFile(join(root, 'crlf-skill.md'), [ + '---', + 'name: crlf-skill', + 'description: CRLF skill', + 'metadata:', + ' marker: "----"', + '---', + '', + 'CRLF body.', + ].join('\r\n')) + await writeFile(join(root, 'block-skill.md'), [ + '---', + 'name: block-skill', + 'description: |', + ' Includes a ---- marker that is not a delimiter.', + '---', + '', + 'Block body.', + ].join('\n')) + + const ctx = await setupLocal(home) + + expect((await ctx.skills.get('crlf-skill'))?.content).toBe('CRLF body.') + expect((await ctx.skills.get('crlf-skill'))?.metadata).toEqual({ marker: '----' }) + expect((await ctx.skills.get('block-skill'))?.description).toBe('Includes a ---- marker that is not a delimiter.\n') + expect((await ctx.skills.get('block-skill'))?.content).toBe('Block body.') + }) + + it('skips invalid YAML skill files without hiding valid siblings', async () => { + const home = await tempDir('skill-invalid-yaml') + const root = join(home, '.dsh/skills') + await writeSkill(root, 'good-skill', 'Good skill') + await writeFile(join(root, 'bad-yaml.md'), '---\nname: bad-yaml\ndescription: [unclosed\n---\n\nBad body.\n') + + const ctx = await setupLocal(home) + + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['good-skill']) + }) + + it('discovers symlinked skill directories and flat files', async () => { + const home = await tempDir('skill-symlink-home') + const external = await tempDir('skill-symlink-external') + await writeSkill(external, 'linked-dir', 'Linked directory') + await writeFlatSkill(external, 'linked-flat', 'Linked flat') + await mkdir(join(home, '.dsh/skills'), { recursive: true }) + await symlink(join(external, 'linked-dir'), join(home, '.dsh/skills/linked-dir')) + await symlink(join(external, 'linked-flat.md'), join(home, '.dsh/skills/linked-flat.md')) + await symlink(join(external, 'missing'), join(home, '.dsh/skills/broken-link')) + await symlink('/dev/null', join(home, '.dsh/skills/device-link')) + + const ctx = await setupLocal(home) + + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['linked-dir', 'linked-flat']) + }) + + it('uses the filesystem service for discovery, reads, and project-root lookup', async () => { + const home = await tempDir('skill-read-fs') + const project = await tempDir('skill-project-root-backend') + const nestedCwd = join(project, 'packages/app') + const root = join(home, '.dsh/skills') + await mkdir(nestedCwd, { recursive: true }) + await writeFlatSkill(root, 'text-skill', 'Text skill', 'Text body.') + await writeFlatSkill(root, 'resolve-fail', 'Resolve fail', 'Resolve body.') + await writeFlatSkill(root, 'stat-fail', 'Stat fail', 'Stat body.') + await mkdir(join(root, 'empty-dir'), { recursive: true }) + await mkdir(join(root, 'directory-skill/SKILL.md'), { recursive: true }) + await writeFile(join(root, 'binary-skill.md'), Buffer.concat([ + Buffer.from('---\nname: binary-skill\ndescription: Binary skill\n---\n\n'), + Buffer.from([0xff]), + Buffer.from('\n'), + ])) + await writeSkill(join(project, '.agents/skills'), 'backend-root', 'Backend root skill') + + const ctx = new Context() + await ctx.plugin(TestFileSystem) + const fs = ctx.fs as TestFileSystem + fs.failResolvePaths.add(join(root, 'resolve-fail.md')) + fs.failStatPaths.add(join(root, 'stat-fail.md')) + fs.failResolvePaths.add(join(nestedCwd, '.git')) + fs.failStatPaths.add(join(project, 'packages/.git')) + fs.statOverrides.set(join(project, '.git'), { + version: FsVersion('virtual-git'), + type: 'directory', + size: 0, + }) + await ctx.plugin(SkillService) + await ctx.plugin(SkillLocal, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) + + expect((await ctx.skills.list({ cwd: nestedCwd })).map(skill => [skill.name, skill.source])).toEqual([ + ['backend-root', 'project-agents'], + ['text-skill', 'user-dsh'], + ]) + expect(fs.listDirCalls).toBeGreaterThan(0) + expect(await ctx.skills.get('binary-skill')).toBeUndefined() + }) + + it('uses default home root resolution without exposing builtin skills', async () => { + const previousDshHome = process.env.DSH_HOME + const previousAgentsHome = process.env.DSH_AGENTS_HOME + const envHome = await tempDir('skill-env-home') + try { + process.env.DSH_HOME = join(envHome, '.dsh') + process.env.DSH_AGENTS_HOME = join(envHome, '.agents') + await writeSkill(join(envHome, '.dsh/skills'), 'env-skill', 'Env skill') + const ctx = new Context() + await ctx.plugin(SkillService) + await ctx.plugin(SkillLocal) + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['env-skill']) + + process.env.DSH_HOME = join(envHome, 'empty-dsh') + process.env.DSH_AGENTS_HOME = join(envHome, 'empty-agents') + const empty = new Context() + await empty.plugin(SkillService) + SkillLocal.apply(empty, {}) + expect(await empty.skills.list()).toEqual([]) + } finally { + if (previousDshHome === undefined) { + delete process.env.DSH_HOME + } else { + process.env.DSH_HOME = previousDshHome + } + if (previousAgentsHome === undefined) { + delete process.env.DSH_AGENTS_HOME + } else { + process.env.DSH_AGENTS_HOME = previousAgentsHome + } + } + }) +}) diff --git a/packages/core/skill-local/tsconfig.json b/packages/core/skill-local/tsconfig.json new file mode 100644 index 0000000000..018f0a4a50 --- /dev/null +++ b/packages/core/skill-local/tsconfig.json @@ -0,0 +1,15 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": ["src"], + "references": [ + { "path": "../../../vendor/cosmokit" }, + { "path": "../../../vendor/cordis" }, + { "path": "../../../vendor/schemastery" }, + { "path": "../../fs/fs" }, + { "path": "../skill" } + ] +} diff --git a/packages/core/skill/README.md b/packages/core/skill/README.md index 71b497485a..3e1b7ee460 100644 --- a/packages/core/skill/README.md +++ b/packages/core/skill/README.md @@ -1,54 +1,38 @@ # @deepseek-ai/dsh-skill -Agent skill discovery and model-facing skill guidance. +Agent skill provider registry and model-facing skill guidance. + +This package owns the `ctx.skills` interface. It does not know whether skills come from local files, embedded plugin data, HTTP, or another backend; providers register those sources with `ctx.skills.registerProvider(...)`. The shipped local implementation is [`@deepseek-ai/dsh-skill-local`](../skill-local). ## Service: `SkillService` (ctx key: `skills`) ### Public API -- `ctx.skills.list({ cwd? })` Returns model-invocable skill summaries for the current workspace. -- `ctx.skills.get(name, { cwd? })` Returns the full skill, including disabled-for-model skills. -- `ctx.skills.register(skill): () => void` Registers a runtime skill, disposed with the calling fiber. Same-name runtime registrations are first-wins: a duplicate logs a warning and gets a no-op disposer. +- `ctx.skills.registerProvider(provider): () => void` Registers a provider by unique `provider.name`. Duplicate provider names throw, and `runtime` is reserved for `ctx.skills.register(...)`. The registration is effect-scoped and HMR-safe. +- `ctx.skills.list({ cwd? })` Returns model-invocable skill summaries for the current workspace, merged across providers. +- `ctx.skills.get(name, { cwd? })` Returns the full winning skill, including disabled-for-model skills. +- `ctx.skills.register(skill): () => void` Registers a runtime embedded skill. Same-name runtime registrations are first-wins: a duplicate logs a warning and gets a no-op disposer. +- `ctx.skills.renderModelListing({ cwd? })` Renders the request-time `## Skills` catalog. ### Config | Field | Default | Meaning | |---|---|---| -| `dshHome` | `$DSH_HOME` or `~/.dsh` | DeepSeek Harness config root; system skills live under `skills/.system`. | -| `agentsHome` | `$DSH_AGENTS_HOME` or `~/.agents` | Shared agent config root scanned for compatible skills. | -| `extraRoots` | `[]` | Additional skill roots scanned after user roots and before system skills. | -| `installSystemSkills` | `true` | Whether startup materializes bundled system skills under `dshHome`. | | `promptFieldMaxLength` | `500` | Maximum rendered `description` / `whenToUse` length in the prompt listing; must be at least `3` because truncated fields reserve `...`. | -| `collectCacheMaxEntries` | `128` | Maximum cwd/root discovery promises kept in memory. | +| `collectCacheMaxEntries` | `128` | Maximum cwd/provider discovery promises kept in memory. | -### Discovery +## Provider Contract -Default roots are resolved in this conflict priority order: +A provider returns `SkillCandidate[]` from `list(options)` and later receives the winning candidate back in `get(candidate, options)`. The candidate's `locator` is opaque to the registry, so a local provider can store a file path while a future HTTP provider can store a URL, id, or version token. -| Source | Path | -|---|---| -| Project DSH | `/.dsh/skills` | -| Project agents | `/.agents/skills` | -| Runtime | `ctx.skills.register(...)` | -| User DSH | `~/.dsh/skills` | -| User agents | `~/.agents/skills` | -| Extra | `Config.extraRoots` | -| System | `~/.dsh/skills/.system` | +The registry validates candidate names, descriptions, ranks, and provider ownership. Candidate contract violations fail fast because the provider plugin is malformed; a provider `list()` rejection is treated as a transient source failure, logged, skipped for that request, and not cached. Duplicate skill names are resolved first-wins by `rank`, provider registration order, then the provider's own local order. The final model-visible summary list is sorted by skill `name` for deterministic prompt text and provider prefix-cache friendliness. -The project root is the nearest ancestor containing `.git`; without one, the current cwd is used. When `ctx.fs` is available, that ancestor lookup probes `.git` through the filesystem service rather than the host filesystem so remote or sandboxed workspaces keep their own project boundary. The user DSH root skips `.system` during normal user scanning so system skills are read exactly once. Same-name skills keep the highest-priority copy, then model-visible summaries are sorted by skill name for stable prompts and provider prefix-cache friendliness. +## Runtime Skills -When `ctx.fs` is available, discovery lists roots through `ctx.fs.listDir`, reads skill files through `ctx.fs.readText`, and installs system skills through `ctx.fs.writeText`. Without a filesystem service, the package falls back to Node filesystem I/O for project-root lookup, discovery, reads, and installation so the service can still run in minimal test contexts. Missing, unreadable, or malformed skill files warn and skip instead of failing the whole request. - -Discovery is memoized per resolved root set and runtime-skill revision. Runtime `register()` and active disposer calls invalidate the cache; duplicate runtime registrations do not alter the active set. Disk-only changes are picked up on the next invalidation or process restart. - -## Skill Format - -Skills can be single-level directory bundles (`/SKILL.md`) or flat Markdown files (`.md`). Nested `**/SKILL.md` discovery is intentionally not part of v1. Frontmatter is parsed as YAML with the `yaml` package; it requires `name` and `description`, while `whenToUse`, `disableModelInvocation`, and `metadata` are optional. Names must be kebab-case. +`ctx.skills.register(...)` is a convenience for embedded runtime skills. Runtime skills use rank `250`: project providers can override them, while they override the shipped local provider's custom and user roots. Runtime registration is also first-wins within runtime contributions, so a duplicate contribution cannot remove the active one through its disposer. ## Prompt Integration -The service listens on `system-prompt/assemble` and appends a short `## Skills` section to the calling agent's assembled system prompt. The listing contains only stable routing metadata (`name`, `source`, `description`, and optional `whenToUse`), not skill bodies or local absolute paths. `description` and `whenToUse` are whitespace-normalized and capped in the listing so one pathological skill cannot bloat every model request. Models load full instructions through the `skill` tool. +The service listens on `system-prompt/assemble` and appends a short `## Skills` section to the calling agent's assembled system prompt. The listing contains only stable routing metadata (`name`, `source`, `description`, and optional `whenToUse`), not skill bodies or absolute local paths. `description` and `whenToUse` are whitespace-normalized, capped, XML-escaped, and have `{{` / `}}` delimiters split so provider text cannot trip prompt-variable interpolation. Models load full instructions through the `skill` tool. -## System Skills - -On startup, the service ensures bundled system skills exist under `~/.dsh/skills/.system` unless `installSystemSkills: false` is configured. Project, runtime, user, and extra-root skills can override system skills by name. +The prompt-injection surface is intentionally separate from provider loading: changing where skills come from means adding or swapping providers, not changing prompt assembly or the `skill` tool. diff --git a/packages/core/skill/package.json b/packages/core/skill/package.json index fade69a580..82a43dd6a0 100644 --- a/packages/core/skill/package.json +++ b/packages/core/skill/package.json @@ -1,6 +1,6 @@ { "name": "@deepseek-ai/dsh-skill", - "description": "Agent skill discovery and prompt listing for the DeepSeek Harness", + "description": "Agent skill provider registry and prompt listing for the DeepSeek Harness", "version": "0.0.1", "private": true, "type": "module", @@ -23,19 +23,14 @@ "license": "BSD-3-Clause", "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", - "@deepseek-ai/dsh-fs": "^0.0.1", - "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-system-prompt": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "dependencies": { - "schemastery": "^3.18.0", - "yaml": "^2.4.2" + "schemastery": "^3.18.0" }, "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", - "@deepseek-ai/dsh-fs": "workspace:^", - "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "cordis": "^4.0.0-rc.6" } diff --git a/packages/core/skill/src/index.ts b/packages/core/skill/src/index.ts index eeca83b852..77b54f0929 100644 --- a/packages/core/skill/src/index.ts +++ b/packages/core/skill/src/index.ts @@ -1,27 +1,25 @@ /** - * Agent skill discovery and prompt listing. + * Agent skill registry and request-time catalog rendering. * - * Skills are progressive-disclosure instructions: the model sees only a short - * listing in the system prompt, then calls the `skill` tool to load the full - * `SKILL.md` body when a task matches. + * This package is the interface third of the skill capability seam. Concrete + * providers such as `@deepseek-ai/dsh-skill-local` decide where skills come + * from; this service only merges provider catalogs, resolves the winning skill + * for a name, and exposes the model-facing catalog/tool consumers use. * * @module @deepseek-ai/dsh-skill */ -import { access, mkdir, readdir, readFile, stat, writeFile } from 'node:fs/promises' -import { dirname, join, resolve } from 'node:path' -import { homedir } from 'node:os' import { Context, Service } from 'cordis' import z from 'schemastery' import type Schema from 'schemastery' -import { parse as parseYaml } from 'yaml' -import type { FileSystem, FsDirEntry, FsTarget } from '@deepseek-ai/dsh-fs' import type {} from '@deepseek-ai/dsh-system-prompt' import type {} from '@deepseek-ai/dsh-agent' const SKILL_NAME = /^[a-z0-9]+(?:-[a-z0-9]+)*$/ const DEFAULT_PROMPT_FIELD_LENGTH = 500 const DEFAULT_COLLECT_CACHE_ENTRIES = 128 +const RUNTIME_PROVIDER = 'runtime' +const RUNTIME_RANK = 250 const SKILL_PROMPT_SECTION_ORDER = 1000 /** Return whether a string is a valid kebab-case skill name. */ @@ -29,10 +27,16 @@ export function isSkillName(name: string): boolean { return SKILL_NAME.test(name) } -/** Origin bucket for a discovered skill. The value is prompt-visible metadata, not part of precedence by itself. */ -export type SkillSource = 'project-dsh' | 'project-agents' | 'runtime' | 'user-dsh' | 'user-agents' | 'extra' | 'system' +/** Origin bucket for a skill contribution. The value is prompt-visible metadata, not precedence by itself. */ +export type SkillSource = 'project-dsh' | 'project-agents' | 'runtime' | 'user-dsh' | 'user-agents' | 'custom' | (string & {}) -/** Model-visible skill metadata returned by `ctx.skills.list()` and rendered into the request prompt. */ +/** Optional provider-specific base used by loaded skill bodies to resolve relative resources. */ +export type SkillResourceBase = + | { kind: 'directory'; path: string } + | { kind: 'url'; url: string } + | { kind: 'opaque'; description: string } + +/** Model-visible skill metadata returned by `ctx.skills.list()` and rendered into request guidance. */ export interface SkillSummary { /** Kebab-case identifier used with the `skill` tool. */ name: string @@ -42,43 +46,68 @@ export interface SkillSummary { whenToUse?: string /** Whether the skill is hidden from model listings while remaining loadable by trusted callers. */ disableModelInvocation?: boolean - /** Base directory for resolving skill-relative references. */ - directory: string /** Discovery source that produced this winning skill. */ source: SkillSource + /** Provider that owns this skill body. */ + provider: string + /** Provider-specific base for relative resources. */ + resourceBase?: SkillResourceBase +} + +/** Provider catalog entry used by the registry to merge and later load skills. */ +export interface SkillCandidate extends SkillSummary { + /** Lower ranks win duplicate skill names before provider registration order is considered. */ + rank: number + /** Opaque provider-owned handle passed back to `provider.get()`. */ + locator: unknown + /** Absolute file path when the provider has one. */ + path?: string + /** Parsed optional metadata object from provider-specific skill frontmatter. */ + metadata?: Record } /** Complete parsed skill definition, including the body loaded by `ctx.skills.get()`. */ export interface SkillDefinition extends SkillSummary { - /** Markdown instruction body after frontmatter removal. */ + /** Markdown instruction body after any provider-specific metadata removal. */ content: string - /** Absolute file path when the skill came from disk; runtime skills may omit it. */ + /** Absolute file path when the skill came from disk. */ path?: string /** Parsed optional metadata object from frontmatter. */ metadata?: Record } /** Runtime skill contribution accepted by `ctx.skills.register()`. */ -export type SkillRegistration = Omit & { disableModelInvocation?: boolean } +export type SkillRegistration = Omit & { provider?: string } -/** Workspace selector used for cwd-sensitive project-root discovery. */ +/** Workspace selector used for cwd-sensitive provider discovery. */ export interface SkillLookupOptions { cwd?: string | undefined } -/** Skill plugin configuration. */ +/** Provider interface for one source of skills, such as local directories or a remote registry. */ +export interface SkillProvider { + /** Unique provider name in the `ctx.skills` registry. */ + name: string + /** + * List available skill candidates for the current lookup context. + * @param options - lookup options; `cwd` selects workspace-sensitive skills. + * @returns provider candidates with precedence ranks and opaque locators. + */ + list(options: SkillLookupOptions): Promise + /** + * Load a complete skill body for a previously listed candidate. + * @param candidate - the winning candidate originally returned by this provider. + * @param options - lookup options; `cwd` selects workspace-sensitive skills. + * @returns the full skill body, or `undefined` if it is no longer loadable. + */ + get(candidate: SkillCandidate, options: SkillLookupOptions): Promise +} + +/** Skill registry configuration. */ export interface Config { - /** DeepSeek Harness config root. Defaults to `$DSH_HOME` or `~/.dsh`. */ - dshHome?: string - /** Shared agent config root. Defaults to `$DSH_AGENTS_HOME` or `~/.agents`. */ - agentsHome?: string - /** Extra skill roots, scanned after user roots and before system skills. */ - extraRoots?: string[] - /** Ensure bundled system skills exist under `/skills/.system`. Defaults true. */ - installSystemSkills?: boolean /** Maximum rendered description/whenToUse length in the prompt listing; minimum 3. */ promptFieldMaxLength?: number - /** Maximum number of cwd/root discovery promises kept in the in-memory cache. */ + /** Maximum number of cwd/provider discovery promises kept in the in-memory cache. */ collectCacheMaxEntries?: number } @@ -86,88 +115,63 @@ declare module 'cordis' { interface Context { skills: SkillService } + + interface Events { + /** + * A skill provider became resolvable in the `ctx.skills` registry. + * Consumers can observe this instead of depending on Cordis plugin load + * order, which is concurrent for sibling plugins. + * @param provider - the provider that just registered. + * @mode emit + */ + 'skill/provider-added'(provider: SkillProvider): void + /** + * A skill provider left the registry because its plugin fiber was disposed. + * @param name - the registry name that no longer resolves. + * @mode emit + */ + 'skill/provider-removed'(name: string): void + } } -interface SkillRoot { - path: string - source: SkillSource - skipSystem?: boolean +interface IndexedCandidate { + candidate: SkillCandidate + provider: SkillProvider + providerOrder: number + localOrder: number } -const SYSTEM_SKILLS: SkillDefinition[] = [ - { - name: 'dsh-plugin-creator', - description: 'Create or update DeepSeek Harness Cordis plugins and packages.', - directory: 'system://dsh-plugin-creator', - source: 'system', - content: [ - 'Use this skill to create DeepSeek Harness plugins that fit the repository architecture.', - '', - 'Prefer Cordis services, plugin packages, effect-scoped registrations, and existing extension seams over loop changes.', - 'When adding a swappable capability, design the interface/implementation/consumer split first.', - 'Every registry or registration path needs disposal/HMR coverage.', - 'Update package docs, architecture docs, package graph references, and generated catalogs when public surfaces change.', - ].join('\n'), - }, - { - name: 'dsh-skill-creator', - description: 'Create or update DeepSeek Harness SKILL.md instructions.', - whenToUse: 'Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills.', - directory: 'system://dsh-skill-creator', - source: 'system', - content: [ - 'Use this skill to write focused DeepSeek Harness skills.', - '', - 'A skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter.', - 'Frontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it.', - 'Use optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills.', - 'Keep the body procedural, evidence-oriented, and scoped to the workflow the skill owns.', - ].join('\n'), - }, -] +interface CollectResult { + entries: IndexedCandidate[] + cacheable: boolean +} /** - * Skill discovery service. It scans project/user/system skill roots, exposes - * model-visible summaries, loads full skill bodies on demand, and injects the - * stable `## Skills` listing into each agent request. + * Registry of skill providers. It merges provider catalogs with stable + * first-wins duplicate handling, exposes sorted model-visible summaries, loads + * full skill bodies on demand, and renders the request-time catalog fragment. */ export class SkillService extends Service { static Config: Schema = z.object({ - dshHome: z.string(), - agentsHome: z.string(), - extraRoots: z.array(z.string()).default([]), - installSystemSkills: z.boolean().default(true), promptFieldMaxLength: z.number().default(DEFAULT_PROMPT_FIELD_LENGTH), collectCacheMaxEntries: z.number().default(DEFAULT_COLLECT_CACHE_ENTRIES), }) - private readonly dshHome: string - private readonly agentsHome: string - private readonly extraRoots: string[] - private readonly installSystemSkills: boolean private readonly promptFieldMaxLength: number private readonly collectCacheMaxEntries: number + private readonly providers = new Map() private readonly runtime = new Map() - private readonly collectCache = new Map>() + private readonly collectCache = new Map>() + private providerRevision = 0 + private nextProviderOrder = 0 private runtimeRevision = 0 - private systemReady: Promise | undefined constructor(ctx: Context, config: Config = {}) { super(ctx, 'skills') - this.dshHome = resolve(config.dshHome ?? process.env.DSH_HOME ?? join(homedir(), '.dsh')) - this.agentsHome = resolve(config.agentsHome ?? process.env.DSH_AGENTS_HOME ?? join(homedir(), '.agents')) - this.extraRoots = (config.extraRoots ?? []).map(root => resolve(root)) - this.installSystemSkills = config.installSystemSkills ?? true this.promptFieldMaxLength = config.promptFieldMaxLength ?? DEFAULT_PROMPT_FIELD_LENGTH this.collectCacheMaxEntries = config.collectCacheMaxEntries ?? DEFAULT_COLLECT_CACHE_ENTRIES assertPositiveInteger('promptFieldMaxLength', this.promptFieldMaxLength, 3) assertPositiveInteger('collectCacheMaxEntries', this.collectCacheMaxEntries) - if (this.installSystemSkills) { - const systemRoot = join(this.dshHome, 'skills/.system') - this.systemReady = writeSystemSkills(systemRoot, this.ctx).catch((error: unknown) => { - this.ctx.logger.warn(`failed to install bundled system skills under ${systemRoot}: ${errorMessage(error)}`) - }) - } ctx.on('system-prompt/assemble', async (_assembly, context, next) => { const result = await next() @@ -186,24 +190,56 @@ export class SkillService extends Service { } /** - * Register a runtime skill contribution. - * Same-name runtime registrations are first-wins: a duplicate logs a warning - * and returns a no-op disposer so it cannot remove the active contribution. + * Register a skill provider. Throws if another provider already owns the same + * provider name, including the reserved runtime provider name. Effect-scoped + * and HMR-safe: disposing the caller's fiber unregisters the provider and + * invalidates cached catalogs. + * @param provider - the provider to register by `provider.name`. + * @returns a disposer that unregisters this provider. + */ + registerProvider(provider: SkillProvider): () => void { + const dispose = this.ctx.effect(function* (this: SkillService) { + if (provider.name === RUNTIME_PROVIDER) { + throw new Error(`"${RUNTIME_PROVIDER}" is reserved for runtime skill registrations`) + } + if (this.providers.has(provider.name)) { + throw new Error(`a skill provider named "${provider.name}" is already registered`) + } + this.providers.set(provider.name, { provider, order: this.nextProviderOrder }) + this.nextProviderOrder += 1 + this.invalidateCache() + yield () => { + this.providers.delete(provider.name) + this.invalidateCache() + this.ctx.emit('skill/provider-removed', provider.name) + } + this.ctx.emit('skill/provider-added', provider) + }.bind(this), 'skills.registerProvider()') + return () => void dispose() + } + + /** + * Register a runtime skill contribution. Runtime registrations are treated as + * embedded provider entries with project-over-user priority. Same-name runtime + * registrations are first-wins: a duplicate logs a warning and gets a no-op + * disposer so it cannot remove the active contribution. * @param skill - the complete skill definition to expose for discovery. * @returns a disposer that removes this runtime contribution and invalidates caches. */ register(skill: SkillRegistration): () => void { - const normalized = normalizeSkill(skill) + const normalized = normalizeRuntimeSkill(skill) const existing = this.runtime.get(normalized.name) if (existing !== undefined) { - this.ctx.logger.warn(`runtime skill "${normalized.name}" from ${normalized.source} ignored because it is already registered from ${existing.source}`) + this.ctx.logger.warn(`runtime skill "${normalized.name}" ignored because it is already registered`) return () => {} } const dispose = this.ctx.effect(function* (this: SkillService) { this.runtime.set(normalized.name, normalized) + this.runtimeRevision += 1 this.invalidateCache() yield () => { this.runtime.delete(normalized.name) + this.runtimeRevision += 1 this.invalidateCache() } }.bind(this), 'skills.register()') @@ -217,6 +253,7 @@ export class SkillService extends Service { */ async list(options: SkillLookupOptions = {}): Promise { return (await this.collect(options)) + .map(entry => entry.candidate) .filter(skill => skill.disableModelInvocation !== true) .map(toSummary) .sort(compareSummary) @@ -225,17 +262,19 @@ export class SkillService extends Service { /** * Load one full skill definition by name. * @param name - kebab-case skill name. - * @param options - lookup options; `cwd` selects the project roots to scan. + * @param options - lookup options; `cwd` selects workspace-sensitive skills. * @returns the full skill, including body content, or `undefined`. */ async get(name: string, options: SkillLookupOptions = {}): Promise { if (!isSkillName(name)) return undefined - return (await this.collect(options)).find(skill => skill.name === name) + const match = (await this.collect(options)).find(entry => entry.candidate.name === name) + if (match === undefined) return undefined + return await match.provider.get(match.candidate, options) } /** * Render the request-time `## Skills` prompt fragment. - * @param options - lookup options; `cwd` selects the project roots to scan. + * @param options - lookup options; `cwd` selects workspace-sensitive skills. * @returns an empty string when no model-invocable skills are available. */ async renderModelListing(options: SkillLookupOptions = {}): Promise { @@ -259,15 +298,16 @@ export class SkillService extends Service { ].join('\n') } - private async collect(options: SkillLookupOptions): Promise { - await this.ensureSystemSkills() - const roots = await this.roots(options.cwd) - const key = collectCacheKey(roots, this.runtimeRevision) + private async collect(options: SkillLookupOptions): Promise { + const key = collectCacheKey(options, this.providerRevision, this.runtimeRevision) const cached = this.collectCache.get(key) if (cached !== undefined) return cached - const collected = this.collectFresh(roots) - const cachedPromise = collected.catch((error: unknown) => { + const collected = this.collectFresh(options) + const cachedPromise = collected.then((result) => { + if (!result.cacheable) this.collectCache.delete(key) + return result.entries + }).catch((error: unknown) => { this.collectCache.delete(key) throw error }) @@ -279,345 +319,116 @@ export class SkillService extends Service { return cachedPromise } - private async collectFresh(roots: { project: SkillRoot[]; shared: SkillRoot[] }): Promise { + private async collectFresh(options: SkillLookupOptions): Promise { + const collected = await this.listAllCandidates(options) + collected.entries.sort(compareIndexedCandidates) const seen = new Set() - const result: SkillDefinition[] = [] - - const add = (skill: SkillDefinition): void => { + const result: IndexedCandidate[] = [] + for (const entry of collected.entries) { + const skill = entry.candidate if (seen.has(skill.name)) { - this.ctx.logger.warn(`skill "${skill.name}" from ${skill.directory} ignored because a higher-priority skill already exists`) - return + this.ctx.logger.warn(`skill "${skill.name}" from ${skill.source} ignored because a higher-priority skill already exists`) + continue } seen.add(skill.name) - result.push(skill) + result.push(entry) } - - for (const root of roots.project) { - for (const skill of await discoverRoot(root, this.ctx)) add(skill) - } - for (const skill of [...this.runtime.values()].sort((a, b) => a.name.localeCompare(b.name))) add(skill) - for (const root of roots.shared) { - for (const skill of await discoverRoot(root, this.ctx)) add(skill) - } - return result + return { entries: result, cacheable: collected.cacheable } } - private async roots(cwd: string | undefined): Promise<{ project: SkillRoot[]; shared: SkillRoot[] }> { - const project: SkillRoot[] = [] - if (cwd !== undefined) { - const projectRoot = await findProjectRoot(resolve(cwd), optionalFileSystem(this.ctx)) - project.push( - { path: join(projectRoot, '.dsh/skills'), source: 'project-dsh' }, - { path: join(projectRoot, '.agents/skills'), source: 'project-agents' }, - ) + private async listAllCandidates(options: SkillLookupOptions): Promise { + const candidates: IndexedCandidate[] = [] + let cacheable = true + let runtimeOrder = 0 + for (const skill of [...this.runtime.values()].sort((a, b) => a.name.localeCompare(b.name))) { + candidates.push({ + candidate: runtimeCandidate(skill), + provider: RUNTIME_SKILL_PROVIDER, + providerOrder: -1, + localOrder: runtimeOrder, + }) + runtimeOrder += 1 } - const shared: SkillRoot[] = [ - { path: join(this.dshHome, 'skills'), source: 'user-dsh', skipSystem: true }, - { path: join(this.agentsHome, 'skills'), source: 'user-agents' }, - ...this.extraRoots.map(path => ({ path, source: 'extra' as const })), - { path: join(this.dshHome, 'skills/.system'), source: 'system' }, - ] - return { project, shared } - } - - private ensureSystemSkills(): Promise { - return this.systemReady ?? Promise.resolve() + for (const { provider, order } of this.providers.values()) { + let localOrder = 0 + const listed = await provider.list(options).catch((error: unknown) => { + cacheable = false + this.ctx.logger.warn(`skill provider "${provider.name}" skipped: ${errorMessage(error)}`) + return undefined + }) + if (listed === undefined) continue + for (const candidate of listed) { + validateCandidate(candidate, provider.name) + candidates.push({ candidate, provider, providerOrder: order, localOrder }) + localOrder += 1 + } + } + return { entries: candidates, cacheable } } private invalidateCache(): void { - this.runtimeRevision += 1 + this.providerRevision += 1 this.collectCache.clear() } } -async function writeSystemSkills(systemRoot: string, ctx: Context): Promise { - await Promise.all(SYSTEM_SKILLS.map(async (skill) => { - const dir = join(systemRoot, skill.name) - const file = join(dir, 'SKILL.md') - if (await skillFileExists(ctx, file)) { - return - } - await writeSkillText(ctx, file, renderSkillFile(skill)) - ctx.logger.debug(`installed system skill ${skill.name} at ${file}`) - })) +const RUNTIME_SKILL_PROVIDER: SkillProvider = { + name: RUNTIME_PROVIDER, + /* v8 ignore next -- Runtime skills are injected directly by the registry; this provider only owns `get()`. */ + list() { + return Promise.resolve([]) + }, + get(candidate) { + const skill = candidate.locator as SkillDefinition + return Promise.resolve({ ...skill }) + }, } -function renderSkillFile(skill: SkillDefinition): string { - const frontmatter = [ - '---', - `name: ${skill.name}`, - `description: ${skill.description}`, - ...skill.whenToUse ? [`whenToUse: ${skill.whenToUse}`] : [], - '---', - '', - ] - return `${frontmatter.join('\n')}${skill.content}\n` -} - -async function discoverRoot(root: SkillRoot, ctx: Context): Promise { - const skills: SkillDefinition[] = [] - const entries = await listSkillRootEntries(root, ctx) - for (const entry of entries.sort((a, b) => a.name.localeCompare(b.name))) { - if (root.skipSystem && entry.name === '.system') continue - const parsed = entry.type === 'directory' - ? await parseSkillFile(join(entry.path, 'SKILL.md'), entry.path, root.source, ctx) - : entry.type === 'file' && entry.name.endsWith('.md') - ? await parseSkillFile(entry.path, root.path, root.source, ctx) - : undefined - if (parsed) skills.push(parsed) - } - return skills -} - -interface SkillRootEntry { - name: string - type: 'directory' | 'file' | 'other' - path: string -} - -async function listSkillRootEntries(root: SkillRoot, ctx: Context): Promise { - const fs = optionalFileSystem(ctx) - if (fs !== undefined) return await listSkillRootEntriesFromFileSystem(root, fs) - return await listSkillRootEntriesFromNode(root, ctx) -} - -async function listSkillRootEntriesFromFileSystem(root: SkillRoot, fs: FileSystem): Promise { - // Skill roots are optional; an absent or unlistable root contributes no skills. - const entries = await fsListDir(fs, root.path).catch(() => undefined) - return entries === undefined ? [] : entries.map(entryFromFs) -} - -async function fsListDir(fs: FileSystem, path: string): Promise { - const target = await fs.resolve(path) - return await fs.listDir(target) -} - -function entryFromFs(entry: FsDirEntry): SkillRootEntry { - return { name: entry.name, type: entry.type, path: entry.target.displayPath } -} - -async function listSkillRootEntriesFromNode(root: SkillRoot, ctx: Context): Promise { - let entries - try { - entries = await readdir(root.path, { withFileTypes: true, encoding: 'utf8' }) - } catch { - return [] - } - - const result: SkillRootEntry[] = [] - for (const entry of entries) { - const path = join(root.path, entry.name) - const type = await nodeEntryKind(path, entry, ctx) - result.push({ name: entry.name, type: type ?? 'other', path }) - } - return result -} - -async function parseSkillFile(path: string, directory: string, source: SkillSource, ctx: Context): Promise { - const raw = await readSkillText(ctx, path) - if (raw === undefined) { - return undefined - } - let parsed - try { - parsed = parseFrontmatter(raw) - } catch (error) { - ctx.logger.warn(`skill file ${path} ignored: invalid YAML frontmatter: ${errorMessage(error)}`) - return undefined - } - if (!parsed) { - ctx.logger.warn(`skill file ${path} ignored: missing YAML frontmatter`) - return undefined - } - const name = stringField(parsed.data, 'name') - const description = stringField(parsed.data, 'description') - if (name === undefined || description === undefined) { - ctx.logger.warn(`skill file ${path} ignored: frontmatter requires name and description`) - return undefined - } - if (!isSkillName(name)) { - ctx.logger.warn(`skill file ${path} ignored: invalid skill name "${name}"`) - return undefined - } +function runtimeCandidate(skill: SkillDefinition): SkillCandidate { return { - name, - description, - ...optionalString(parsed.data, 'whenToUse'), - ...optionalBoolean(parsed.data, 'disableModelInvocation'), - ...optionalMetadata(parsed.data), - directory, - path, - source, - content: parsed.body.trim(), + ...toSummary(skill), + rank: RUNTIME_RANK, + locator: skill, + ...skill.path !== undefined ? { path: skill.path } : {}, + ...skill.metadata !== undefined ? { metadata: skill.metadata } : {}, } } -function optionalFileSystem(ctx: Context): FileSystem | undefined { - return ctx.get('fs') -} - -async function skillFileExists(ctx: Context, path: string): Promise { - const fs = optionalFileSystem(ctx) - if (fs !== undefined) { - const target = await fs.resolve(path) - return await fs.stat(target) !== undefined +function validateCandidate(candidate: SkillCandidate, providerName: string): void { + if (!SKILL_NAME.test(candidate.name)) { + throw new Error(`skill provider "${providerName}" returned invalid skill name "${candidate.name}"`) } - try { - await access(path) - return true - } catch { - // Expected first-run path: the bundled system skill has not been installed. - return false + if (candidate.description.length === 0) { + throw new Error(`skill provider "${providerName}" returned skill "${candidate.name}" without a description`) + } + if (!Number.isFinite(candidate.rank)) { + throw new Error(`skill provider "${providerName}" returned skill "${candidate.name}" with an invalid rank`) + } + if (candidate.provider !== providerName) { + throw new Error(`skill provider "${providerName}" returned skill "${candidate.name}" for provider "${candidate.provider}"`) } } -async function writeSkillText(ctx: Context, path: string, content: string): Promise { - const fs = optionalFileSystem(ctx) - if (fs !== undefined) { - await fs.writeText(await fs.resolve(path), content) - return - } - await mkdir(dirname(path), { recursive: true }) - await writeFile(path, content) -} - -async function readSkillText(ctx: Context, path: string): Promise { - const fs = optionalFileSystem(ctx) - if (fs !== undefined) { - return await readSkillTextFromFileSystem(ctx, fs, path) - } - try { - return await readFile(path, 'utf8') - } catch { - return undefined - } -} - -async function readSkillTextFromFileSystem(ctx: Context, fs: FileSystem, path: string): Promise { - // A missing or temporarily inaccessible skill file is not fatal to discovery. - const target = await fs.resolve(path).catch(() => undefined) - if (target === undefined) return undefined - const info = await fs.stat(target).catch((error: unknown) => { - ctx.logger.warn(`skill file ${path} ignored: failed to stat through filesystem service: ${errorMessage(error)}`) - return undefined - }) - if (info === undefined || info.type !== 'file') return undefined - try { - return await fs.readText(target) - } catch (error) { - ctx.logger.warn(`skill file ${path} ignored: ${fsReadErrorMessage(target, error)}`) - return undefined - } -} - -function fsReadErrorMessage(target: FsTarget, error: unknown): string { - return `failed to read text file at ${target.displayPath}: ${errorMessage(error)}` -} - -async function nodeEntryKind(fullPath: string, entry: { isDirectory(): boolean; isFile(): boolean; isSymbolicLink(): boolean }, ctx: Context): Promise<'directory' | 'file' | undefined> { - if (entry.isDirectory()) return 'directory' - if (entry.isFile()) return 'file' - /* v8 ignore next -- Non-file directory entries such as FIFOs are platform-specific and intentionally skipped. */ - if (!entry.isSymbolicLink()) return undefined - try { - const info = await stat(fullPath) - if (info.isDirectory()) return 'directory' - if (info.isFile()) return 'file' - return undefined - } catch (error) { - ctx.logger.warn(`skill entry ${fullPath} ignored: failed to follow symbolic link: ${errorMessage(error)}`) - return undefined - } -} - -function parseFrontmatter(raw: string): { data: Record; body: string } | undefined { - const firstLineEnd = raw.indexOf('\n') - if (firstLineEnd < 0) return undefined - const firstLine = raw.slice(0, firstLineEnd).replace(/\r$/, '') - if (firstLine !== '---') return undefined - const start = firstLineEnd + 1 - const closing = findClosingFrontmatter(raw, start) - if (closing === undefined) return undefined - const yaml = raw.slice(start, closing.start) - const parsed = parseYaml(yaml) as unknown - if (typeof parsed !== 'object' || parsed === null || Array.isArray(parsed)) return undefined - return { data: parsed as Record, body: raw.slice(closing.bodyStart) } -} - -function findClosingFrontmatter(raw: string, start: number): { start: number; bodyStart: number } | undefined { - let lineStart = start - while (lineStart <= raw.length) { - const nextNewline = raw.indexOf('\n', lineStart) - const lineEnd = nextNewline < 0 ? raw.length : nextNewline - const line = raw.slice(lineStart, lineEnd).replace(/\r$/, '') - if (line === '---') { - return { start: lineStart, bodyStart: nextNewline < 0 ? raw.length : nextNewline + 1 } - } - if (nextNewline < 0) return undefined - lineStart = nextNewline + 1 - } -} - -async function findProjectRoot(cwd: string, fs: FileSystem | undefined): Promise { - let current = cwd - while (true) { - if (await pathExists(join(current, '.git'), fs)) { - return current - } - const parent = dirname(current) - if (parent === current) return cwd - current = parent - } -} - -async function pathExists(path: string, fs: FileSystem | undefined): Promise { - if (fs !== undefined) { - return await pathExistsInFileSystem(path, fs) - } - return await pathExistsInNode(path) -} - -async function pathExistsInFileSystem(path: string, fs: FileSystem): Promise { - let target - try { - target = await fs.resolve(path) - } catch { - // A backend may reject or hide this candidate; continue walking upward. - return false - } - try { - return await fs.stat(target) !== undefined - } catch { - // Transient stat failures make only this git-root candidate unusable. - return false - } -} - -async function pathExistsInNode(path: string): Promise { - try { - await access(path) - return true - } catch { - // Missing host paths are expected while walking toward the filesystem root. - return false - } -} - -function normalizeSkill(skill: SkillRegistration): SkillDefinition { +function normalizeRuntimeSkill(skill: SkillRegistration): SkillDefinition { if (!SKILL_NAME.test(skill.name)) throw new Error(`invalid skill name "${skill.name}"`) if (skill.description.length === 0) throw new Error(`skill "${skill.name}" requires a description`) - return { ...skill } + return { + ...skill, + provider: skill.provider ?? RUNTIME_PROVIDER, + source: skill.source, + } } -function toSummary(skill: SkillDefinition): SkillSummary { - const { name, description, whenToUse, disableModelInvocation, directory, source } = skill +function toSummary(skill: SkillDefinition | SkillCandidate): SkillSummary { + const { name, description, whenToUse, disableModelInvocation, source, provider, resourceBase } = skill return { name, description, ...whenToUse !== undefined ? { whenToUse } : {}, ...disableModelInvocation !== undefined ? { disableModelInvocation } : {}, - directory, source, + provider, + ...resourceBase !== undefined ? { resourceBase } : {}, } } @@ -625,12 +436,22 @@ function compareSummary(left: SkillSummary, right: SkillSummary): number { return left.name.localeCompare(right.name) } +function compareIndexedCandidates(left: IndexedCandidate, right: IndexedCandidate): number { + return left.candidate.rank - right.candidate.rank + || left.providerOrder - right.providerOrder + || left.localOrder - right.localOrder +} + function promptLine(value: string, maxLength: number): string { const normalized = value.replaceAll(/\s+/g, ' ').trim() const truncated = normalized.length <= maxLength ? normalized : `${normalized.slice(0, maxLength - 3)}...` - return escapeText(truncated) + return escapeText(breakPromptTemplateDelimiters(truncated)) +} + +function breakPromptTemplateDelimiters(value: string): string { + return value.replaceAll('{{', '{ {').replaceAll('}}', '} }') } function assertPositiveInteger(name: string, value: number, minimum = 1): void { @@ -639,29 +460,6 @@ function assertPositiveInteger(name: string, value: number, minimum = 1): void { } } -function stringField(data: Record, key: string): string | undefined { - const value = data[key] - return typeof value === 'string' && value.length > 0 ? value : undefined -} - -function optionalString(data: Record, key: string): { [K in typeof key]?: string } { - const value = data[key] - return typeof value === 'string' && value.length > 0 ? { [key]: value } : {} -} - -function optionalBoolean(data: Record, key: string): { [K in typeof key]?: boolean } { - const value = data[key] - return typeof value === 'boolean' ? { [key]: value } : {} -} - -function optionalMetadata(data: Record): { metadata?: Record } { - const value = data.metadata - if (typeof value === 'object' && value !== null && !Array.isArray(value)) { - return { metadata: value as Record } - } - return {} -} - function escapeAttr(value: string): string { return value.replaceAll('&', '&').replaceAll('"', '"').replaceAll('<', '<') } @@ -670,8 +468,8 @@ function escapeText(value: string): string { return value.replaceAll('&', '&').replaceAll('<', '<').replaceAll('>', '>') } -function collectCacheKey(roots: { project: SkillRoot[]; shared: SkillRoot[] }, runtimeRevision: number): string { - return JSON.stringify({ runtimeRevision, roots }) +function collectCacheKey(options: SkillLookupOptions, providerRevision: number, runtimeRevision: number): string { + return JSON.stringify({ cwd: options.cwd, providerRevision, runtimeRevision }) } function errorMessage(error: unknown): string { diff --git a/packages/core/skill/tests/skill.spec.ts b/packages/core/skill/tests/skill.spec.ts index fd04406000..e51468674a 100644 --- a/packages/core/skill/tests/skill.spec.ts +++ b/packages/core/skill/tests/skill.spec.ts @@ -1,748 +1,260 @@ -import { describe, expect, it, vi } from 'vitest' -import { mkdir, readdir, readFile, stat, symlink, writeFile } from 'node:fs/promises' -import { dirname, join } from 'node:path' -import { tmpdir } from 'node:os' +import { describe, expect, it } from 'vitest' import { Context } from 'cordis' -import SkillService from '@deepseek-ai/dsh-skill' -import { FileSystem, FsVersion, type FsDirEntry, type FsEditOutcome, type FsEditRequest, type FsInfo, type FsTarget, type FsWriteOutcome } from '@deepseek-ai/dsh-fs' +import SkillService, { type SkillCandidate, type SkillDefinition, type SkillLookupOptions, type SkillProvider } from '@deepseek-ai/dsh-skill' import SystemPrompt, { renderPrompt } from '@deepseek-ai/dsh-system-prompt' -async function tempDir(name: string): Promise { - return await import('node:fs/promises').then(fs => fs.mkdtemp(join(tmpdir(), `dsh-${name}-`))) -} - -async function writeSkill(root: string, name: string, description: string, body = 'Use the skill.'): Promise { - const dir = join(root, name) - await mkdir(dir, { recursive: true }) - await writeFile(join(dir, 'SKILL.md'), `---\nname: ${name}\ndescription: ${description}\n---\n\n${body}\n`) -} - -async function writeFlatSkill(root: string, name: string, description: string, body = 'Flat body.'): Promise { - await mkdir(root, { recursive: true }) - await writeFile(join(root, `${name}.md`), `---\nname: ${name}\ndescription: ${description}\n---\n\n${body}\n`) -} - function agentForCwd(cwd: string): never { return { session: { header: { cwd } } } as never } -class TestFileSystem extends FileSystem { - listDirCalls = 0 - failResolvePaths = new Set() - failStatPaths = new Set() - statOverrides = new Map() - - override async resolve(path: string): Promise { - if (this.failResolvePaths.has(path)) throw new Error('resolve failed') - return { targetKey: path as never, displayPath: path } - } - - override async stat(target: FsTarget): Promise { - if (this.failStatPaths.has(target.displayPath)) throw new Error('stat failed') - if (this.statOverrides.has(target.displayPath)) return this.statOverrides.get(target.displayPath) - try { - const fs = await import('node:fs/promises') - const info = await fs.stat(target.displayPath) - return { - version: FsVersion(String(info.mtimeMs)), - type: info.isFile() ? 'file' : info.isDirectory() ? 'directory' : 'other', - size: info.size, - } - } catch { - return undefined - } - } - - override async readText(target: FsTarget): Promise { - const text = await readFile(target.displayPath, 'utf8') - if (text.includes('\uFFFD')) throw new Error('not text') - return text - } - - override async streamText(_target: FsTarget): Promise> { - throw new Error('not needed in skill tests') - } - - override async listDir(target: FsTarget): Promise { - this.listDirCalls += 1 - const entries = await readdir(target.displayPath, { withFileTypes: true, encoding: 'utf8' }) - const result: FsDirEntry[] = [] - for (const entry of entries.sort((left, right) => left.name.localeCompare(right.name))) { - const childPath = join(target.displayPath, entry.name) - let type: FsInfo['type'] = 'other' - let size: number | undefined - try { - const info = await stat(childPath) - type = info.isFile() ? 'file' : info.isDirectory() ? 'directory' : 'other' - size = info.isFile() ? info.size : undefined - } catch { - type = 'other' - } - result.push({ - name: entry.name, - type, - target: { targetKey: childPath as never, displayPath: childPath }, - version: FsVersion('test'), - ...(size !== undefined ? { size } : {}), - }) - } - return result - } - - override async writeText(target: FsTarget, content: string): Promise { - await mkdir(dirname(target.displayPath), { recursive: true }) - await writeFile(target.displayPath, content) - return { operation: 'create', version: FsVersion('test'), before: null, after: content } - } - - override async editText(_target: FsTarget, _request: FsEditRequest): Promise { - throw new Error('not needed in skill tests') +function memorySkill(name: string, description: string, rank: number, body = `${name} body.`): SkillCandidate { + return { + name, + description, + provider: 'memory', + source: 'memory', + rank, + locator: { content: body }, } } -describe('SkillService', () => { - it('discovers project, user, agents, and system skill roots in priority order', async () => { - const home = await tempDir('skill-home') - const agentsHome = await tempDir('agents-home') - const project = await tempDir('skill-project') - await mkdir(join(project, '.git'), { recursive: true }) +class MemoryProvider implements SkillProvider { + readonly name = 'memory' + listCalls = 0 - await writeSkill(join(home, '.dsh/skills/.system'), 'same', 'system skill') - await writeSkill(join(agentsHome, '.agents/skills'), 'same', 'user agents skill') - await writeSkill(join(home, '.dsh/skills'), 'same', 'user dsh skill') - await writeSkill(join(project, '.agents/skills'), 'same', 'project agents skill') - await writeSkill(join(project, '.dsh/skills'), 'same', 'project dsh skill') - await writeSkill(join(home, '.dsh/skills/.system'), 'system-only', 'system only') + constructor(private candidates: SkillCandidate[]) {} + async list(_options: SkillLookupOptions): Promise { + this.listCalls += 1 + return this.candidates + } + + async get(candidate: SkillCandidate): Promise { + const locator = candidate.locator as { content: string } + return { ...candidate, content: locator.content } + } + + replace(candidates: SkillCandidate[]): void { + this.candidates = candidates + } +} + +describe('SkillService registry', () => { + it('registers providers, resolves duplicates first-wins, and disposes providers', async () => { const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(agentsHome, '.agents'), installSystemSkills: false }) - - const skills = await ctx.skills.list({ cwd: join(project, 'src') }) - expect(skills.map(skill => [skill.name, skill.description])).toEqual([ - ['same', 'project dsh skill'], - ['system-only', 'system only'], + await ctx.plugin(SkillService) + const provider = new MemoryProvider([ + memorySkill('z-skill', 'Z skill', 20), + memorySkill('a-skill', 'A skill', 10), + memorySkill('shadowed', 'Lower priority', 20), ]) - expect(skills.find(skill => skill.name === 'same')?.source).toBe('project-dsh') - }) + const overrideProvider: SkillProvider = { + name: 'override', + async list() { + return [{ + name: 'shadowed', + description: 'Higher priority', + provider: 'override', + source: 'override', + rank: 5, + locator: { content: 'Override body.' }, + }] + }, + async get(candidate) { + return { ...candidate, content: (candidate.locator as { content: string }).content } + }, + } + const disposeMemory = ctx.skills.registerProvider(provider) + ctx.skills.registerProvider(overrideProvider) - it('sorts the final model-visible list by skill name after priority conflict resolution', async () => { - const home = await tempDir('skill-sorted-home') - const agentsHome = await tempDir('skill-sorted-agents') - const project = await tempDir('skill-sorted-project') - await mkdir(join(project, '.git'), { recursive: true }) - - await writeSkill(join(project, '.dsh/skills'), 'z-project', 'Project skill') - await writeSkill(join(home, '.dsh/skills'), 'm-user', 'User skill') - await writeSkill(join(home, '.dsh/skills/.system'), 'a-system', 'System skill') - await writeSkill(join(home, '.dsh/skills/.system'), 'm-user', 'Shadowed system skill') - - const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(agentsHome, '.agents'), installSystemSkills: false }) - - expect((await ctx.skills.list({ cwd: project })).map(skill => [skill.name, skill.description])).toEqual([ - ['a-system', 'System skill'], - ['m-user', 'User skill'], - ['z-project', 'Project skill'], + expect((await ctx.skills.list()).map(skill => [skill.name, skill.description, skill.provider])).toEqual([ + ['a-skill', 'A skill', 'memory'], + ['shadowed', 'Higher priority', 'override'], + ['z-skill', 'Z skill', 'memory'], ]) + expect((await ctx.skills.get('shadowed'))?.content).toBe('Override body.') + const sameRankProvider: SkillProvider = { + name: 'same-rank', + async list() { + return [{ + name: 'same-rank-skill', + description: 'Same rank', + provider: 'same-rank', + source: 'same-rank', + rank: 10, + locator: { content: 'Same rank body.' }, + }] + }, + async get(candidate) { + return { ...candidate, content: (candidate.locator as { content: string }).content } + }, + } + ctx.skills.registerProvider(sameRankProvider) + expect((await ctx.skills.list()).find(skill => skill.name === 'same-rank-skill')?.provider).toBe('same-rank') + await expect(ctx.plugin({ + name: 'duplicate-memory', + inject: ['skills'], + apply(pluginCtx: Context) { + pluginCtx.skills.registerProvider(new MemoryProvider([])) + }, + })).rejects.toThrow('already registered') + expect(() => ctx.skills.registerProvider({ + name: 'runtime', + async list() { + return [] + }, + async get() { + return undefined + }, + })).toThrow('reserved') + + disposeMemory() + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['same-rank-skill', 'shadowed']) }) - it('gives project skills priority over runtime skills while runtime overrides user and system skills', async () => { - const home = await tempDir('skill-runtime-priority') - const project = await tempDir('skill-runtime-project') - await mkdir(join(project, '.git'), { recursive: true }) - - await writeSkill(join(project, '.dsh/skills'), 'project-name', 'Project wins') - await writeSkill(join(home, '.dsh/skills'), 'runtime-name', 'User loses') - await writeSkill(join(home, '.dsh/skills/.system'), 'runtime-name', 'System loses') - + it('validates provider candidates and invalid registry caps', async () => { const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - ctx.skills.register({ - name: 'project-name', - description: 'Runtime loses to project', - content: 'Runtime body.', - directory: 'memory://project-name', - source: 'runtime', - }) - ctx.skills.register({ - name: 'runtime-name', - description: 'Runtime wins', - content: 'Runtime body.', - directory: 'memory://runtime-name', - source: 'runtime', + await ctx.plugin(SkillService) + ctx.skills.registerProvider({ + name: 'bad', + async list() { + return [memorySkill('Bad_Name', 'bad', 1)] + }, + async get() { + return undefined + }, }) + await expect(ctx.skills.list()).rejects.toThrow('invalid skill name') - expect((await ctx.skills.get('project-name', { cwd: project }))?.description).toBe('Project wins') - expect((await ctx.skills.get('runtime-name', { cwd: project }))?.description).toBe('Runtime wins') + const invalidCandidates = [ + { ...memorySkill('empty-description', '', 1), provider: 'empty-description' }, + { ...memorySkill('bad-rank', 'Bad rank', Number.NaN), provider: 'bad-rank' }, + { ...memorySkill('wrong-provider', 'Wrong provider', 1), provider: 'different' }, + ] + for (const candidate of invalidCandidates) { + const invalid = new Context() + await invalid.plugin(SkillService) + invalid.skills.registerProvider({ + name: candidate.name, + async list() { + return [candidate] + }, + async get() { + return undefined + }, + }) + await expect(invalid.skills.list()).rejects.toThrow('skill provider') + } + + await expect(new Context().plugin(SkillService, { promptFieldMaxLength: 2 })).rejects.toThrow('greater than or equal to 3') + await expect(new Context().plugin(SkillService, { collectCacheMaxEntries: 1.5 })).rejects.toThrow('collectCacheMaxEntries') }) - it('does not scan .system twice through the user dsh root', async () => { - const home = await tempDir('skill-system') - await writeSkill(join(home, '.dsh/skills/.system'), 'builtin', 'builtin skill') - + it('caches provider discovery, skips failing providers, and invalidates on runtime skills', async () => { const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + await ctx.plugin(SkillService, { collectCacheMaxEntries: 1 }) + const provider = new MemoryProvider([memorySkill('first-skill', 'First', 10)]) + ctx.skills.registerProvider(provider) - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['builtin']) - }) + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['first-skill']) + provider.replace([memorySkill('second-skill', 'Second', 10)]) + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['first-skill']) - it('parses flat skills and filters invalid or model-disabled skills from listing', async () => { - const home = await tempDir('skill-flat') - await writeFlatSkill(join(home, '.dsh/skills'), 'flat-skill', 'flat description', 'Flat instructions.') - await writeFile(join(home, '.dsh/skills/bad.md'), '---\nname: Bad_Name\ndescription: bad\n---\n\nbad') - await writeFile(join(home, '.dsh/skills/missing-description.md'), '---\nname: missing-description\n---\n\nbad') - await writeFile(join(home, '.dsh/skills/no-frontmatter.md'), 'No frontmatter.') - await writeFile(join(home, '.dsh/skills/plain-markdown.md'), '# Notes\nNot a skill.') - await writeFile(join(home, '.dsh/skills/open-frontmatter.md'), '---\nname: open-frontmatter') - await writeFile(join(home, '.dsh/skills/non-object.md'), '---\n[]\n---\n\nbad') - await writeFile(join(home, '.dsh/skills/no-trailing-body.md'), '---\nname: no-trailing-body\ndescription: No trailing body\n---') - await writeFile(join(home, '.dsh/skills/notes.txt'), 'ignored') - await mkdir(join(home, '.dsh/skills/not-a-skill'), { recursive: true }) - await writeSkill(join(home, '.dsh/skills'), 'hidden-skill', 'hidden description', 'Hidden.') - await writeFile(join(home, '.dsh/skills/hidden-skill/SKILL.md'), '---\nname: hidden-skill\ndescription: hidden description\ndisableModelInvocation: true\n---\n\nHidden.\n') - - const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['flat-skill', 'no-trailing-body']) - expect((await ctx.skills.get('hidden-skill'))?.content).toContain('Hidden.') - expect(await ctx.skills.get('Bad_Name')).toBeUndefined() - }) - - it('supports CRLF frontmatter and ignores delimiter-looking text inside YAML values', async () => { - const home = await tempDir('skill-frontmatter-crlf') - const root = join(home, '.dsh/skills') - await mkdir(root, { recursive: true }) - await writeFile(join(root, 'crlf-skill.md'), [ - '---', - 'name: crlf-skill', - 'description: CRLF skill', - 'metadata:', - ' marker: "----"', - '---', - '', - 'CRLF body.', - ].join('\r\n')) - await writeFile(join(root, 'block-skill.md'), [ - '---', - 'name: block-skill', - 'description: |', - ' Includes a ---- marker that is not a delimiter.', - '---', - '', - 'Block body.', - ].join('\n')) - - const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - - expect((await ctx.skills.get('crlf-skill'))?.content).toBe('CRLF body.') - expect((await ctx.skills.get('crlf-skill'))?.metadata).toEqual({ marker: '----' }) - expect((await ctx.skills.get('block-skill'))?.description).toBe('Includes a ---- marker that is not a delimiter.\n') - expect((await ctx.skills.get('block-skill'))?.content).toBe('Block body.') - }) - - it('skips invalid YAML skill files without poisoning discovery cache', async () => { - const home = await tempDir('skill-invalid-yaml') - const root = join(home, '.dsh/skills') - await writeSkill(root, 'good-skill', 'Good skill') - await writeFile(join(root, 'bad-yaml.md'), '---\nname: bad-yaml\ndescription: [unclosed\n---\n\nBad body.\n') - - const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['good-skill']) - await writeFile(join(root, 'bad-yaml.md'), '---\nname: fixed-skill\ndescription: Fixed skill\n---\n\nFixed body.\n') - - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['good-skill']) - const dispose = ctx.skills.register({ + const disposeRuntime = ctx.skills.register({ name: 'runtime-skill', - description: 'Runtime skill', - content: 'Runtime body.', - directory: 'memory://runtime', + description: 'Runtime', source: 'runtime', + resourceBase: { kind: 'opaque', description: 'runtime memory' }, + path: 'memory://runtime-skill', + metadata: { owner: 'tests' }, + content: 'Runtime body.', }) - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['fixed-skill', 'good-skill', 'runtime-skill']) - dispose() - }) + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['runtime-skill', 'second-skill']) + expect(await ctx.skills.get('runtime-skill')).toMatchObject({ + content: 'Runtime body.', + path: 'memory://runtime-skill', + metadata: { owner: 'tests' }, + }) + disposeRuntime() + await ctx.skills.list({ cwd: '/tmp/first-cache-key' }) + await ctx.skills.list({ cwd: '/tmp/second-cache-key' }) - it('does not cache a rejected discovery promise', async () => { - const home = await tempDir('skill-rejected-cache') - const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - const internals = ctx.skills as unknown as { - collectFresh(roots: unknown): Promise - } - const original = internals.collectFresh.bind(ctx.skills) let fail = true - internals.collectFresh = async (roots: unknown) => { - if (fail) throw new Error('transient discovery failure') - return await original(roots) - } - - await expect(ctx.skills.list()).rejects.toThrow('transient discovery failure') - fail = false - await writeSkill(join(home, '.dsh/skills'), 'late-good', 'Late good') - await expect(ctx.skills.list()).resolves.toMatchObject([{ name: 'late-good' }]) - }) - - it('discovers symlinked skill directories and flat files', async () => { - const home = await tempDir('skill-symlink-home') - const external = await tempDir('skill-symlink-external') - await writeSkill(external, 'linked-dir', 'Linked directory') - await writeFlatSkill(external, 'linked-flat', 'Linked flat') - await mkdir(join(home, '.dsh/skills'), { recursive: true }) - await symlink(join(external, 'linked-dir'), join(home, '.dsh/skills/linked-dir')) - await symlink(join(external, 'linked-flat.md'), join(home, '.dsh/skills/linked-flat.md')) - await symlink(join(external, 'missing'), join(home, '.dsh/skills/broken-link')) - await symlink('/dev/null', join(home, '.dsh/skills/device-link')) - - const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['linked-dir', 'linked-flat']) - }) - - it('honors prompt and cache bounds from config', async () => { - const home = await tempDir('skill-config-bounds') - const firstProject = await tempDir('skill-config-first') - const secondProject = await tempDir('skill-config-second') - await mkdir(join(firstProject, '.git'), { recursive: true }) - await mkdir(join(secondProject, '.git'), { recursive: true }) - await writeSkill(join(firstProject, '.dsh/skills'), 'first-skill', 'abcdefghij') - await writeSkill(join(secondProject, '.dsh/skills'), 'second-skill', 'Second') - - const ctx = new Context() - await ctx.plugin(SkillService, { - dshHome: join(home, '.dsh'), - agentsHome: join(home, '.agents'), - installSystemSkills: false, - promptFieldMaxLength: 6, - collectCacheMaxEntries: 1, + let flakyCalls = 0 + ctx.skills.registerProvider({ + name: 'flaky', + async list() { + flakyCalls += 1 + if (fail) throw new Error('transient discovery failure') + return [{ ...memorySkill('flaky-skill', 'Flaky', 10), provider: 'flaky' }] + }, + async get() { + return undefined + }, }) - - expect(await ctx.skills.renderModelListing({ cwd: firstProject })).toContain('description: abc...') - expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['first-skill']) - await writeSkill(join(firstProject, '.dsh/skills'), 'late-first', 'Late first') - expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['first-skill']) - await ctx.skills.list({ cwd: secondProject }) - expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['first-skill', 'late-first']) + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['second-skill']) + expect(flakyCalls).toBe(1) + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['second-skill']) + expect(flakyCalls).toBe(2) + fail = false + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['flaky-skill', 'second-skill']) + expect(flakyCalls).toBe(3) + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['flaky-skill', 'second-skill']) + expect(flakyCalls).toBe(3) }) - it('rejects invalid positive-integer config caps', async () => { - const home = await tempDir('skill-invalid-config') - const ctx = new Context() - await expect(ctx.plugin(SkillService, { - dshHome: join(home, '.dsh'), - agentsHome: join(home, '.agents'), - installSystemSkills: false, - promptFieldMaxLength: 0, - })).rejects.toThrow('promptFieldMaxLength') - await expect(ctx.plugin(SkillService, { - dshHome: join(home, '.dsh'), - agentsHome: join(home, '.agents'), - installSystemSkills: false, - promptFieldMaxLength: 2, - })).rejects.toThrow('greater than or equal to 3') - await expect(ctx.plugin(SkillService, { - dshHome: join(home, '.dsh'), - agentsHome: join(home, '.agents'), - installSystemSkills: false, - collectCacheMaxEntries: 1.5, - })).rejects.toThrow('collectCacheMaxEntries') - }) - - it('renders no model listing when no model-invocable skills exist', async () => { - const home = await tempDir('skill-empty-listing') + it('renders stable prompt guidance and omits it when no skills exist', async () => { const ctx = new Context() await ctx.plugin(SystemPrompt, { persona: 'base' }) - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - - expect(await ctx.skills.renderModelListing()).toBe('') - expect(renderPrompt(await ctx.systemPrompt.assemble({ agent: agentForCwd(home) }))).not.toContain('## Skills') - expect(renderPrompt(await ctx.systemPrompt.assemble())).not.toContain('## Skills') - }) - - it('supports default home root resolution without installing system skills', async () => { - const previousDshHome = process.env.DSH_HOME - const envHome = await tempDir('skill-env-home') - try { - process.env.DSH_HOME = join(envHome, '.dsh') - await new Context().plugin(SkillService, { installSystemSkills: false }) - - delete process.env.DSH_HOME - await new Context().plugin(SkillService, { installSystemSkills: false }) - } finally { - if (previousDshHome === undefined) { - delete process.env.DSH_HOME - } else { - process.env.DSH_HOME = previousDshHome - } - } - }) - - it('keeps constructor defaults when schema preprocessing is not involved', async () => { - const home = await tempDir('skill-constructor-defaults') - const service = new SkillService(new Context(), { - dshHome: join(home, '.dsh'), - agentsHome: join(home, '.agents'), - }) - - expect((await service.list()).map(skill => skill.name)).toEqual(['dsh-plugin-creator', 'dsh-skill-creator']) - }) - - it('installs system skills into the DSH home without overwriting existing files', async () => { - const home = await tempDir('skill-install') - const existing = join(home, '.dsh/skills/.system/dsh-plugin-creator/SKILL.md') - await mkdir(join(home, '.dsh/skills/.system/dsh-plugin-creator'), { recursive: true }) - await writeFile(existing, '---\nname: dsh-plugin-creator\ndescription: Custom system skill\n---\n\nCustom body.\n') - - const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) - - expect((await ctx.skills.list()).map(skill => [skill.name, skill.description])).toEqual([ - ['dsh-plugin-creator', 'Custom system skill'], - ['dsh-skill-creator', 'Create or update DeepSeek Harness SKILL.md instructions.'], - ]) - expect(await readFile(existing, 'utf8')).toContain('Custom body.') - expect(await readFile(join(home, '.dsh/skills/.system/dsh-skill-creator/SKILL.md'), 'utf8')).toContain('dsh-skill-creator') - }) - - it('uses the filesystem service when installing bundled system skills', async () => { - const home = await tempDir('skill-install-fs') - const existing = join(home, '.dsh/skills/.system/dsh-plugin-creator/SKILL.md') - await mkdir(join(home, '.dsh/skills/.system/dsh-plugin-creator'), { recursive: true }) - await writeFile(existing, '---\nname: dsh-plugin-creator\ndescription: Existing system skill\n---\n\nExisting body.\n') - - const ctx = new Context() - await ctx.plugin(TestFileSystem) - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) - - expect((await ctx.skills.list()).map(skill => [skill.name, skill.description])).toEqual([ - ['dsh-plugin-creator', 'Existing system skill'], - ['dsh-skill-creator', 'Create or update DeepSeek Harness SKILL.md instructions.'], - ]) - expect(await readFile(existing, 'utf8')).toContain('Existing body.') - expect(await readFile(join(home, '.dsh/skills/.system/dsh-skill-creator/SKILL.md'), 'utf8')).toContain('dsh-skill-creator') - }) - - it('renders bundled system skill files with and without routing metadata', async () => { - const home = await tempDir('skill-install-render') - - const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) - await ctx.skills.list() - - expect(await readFile(join(home, '.dsh/skills/.system/dsh-plugin-creator/SKILL.md'), 'utf8')).not.toContain('whenToUse:') - expect(await readFile(join(home, '.dsh/skills/.system/dsh-skill-creator/SKILL.md'), 'utf8')).toContain('whenToUse:') - }) - - it('uses the filesystem service for skill file reads when it is available', async () => { - const home = await tempDir('skill-read-fs') - const root = join(home, '.dsh/skills') - await writeFlatSkill(root, 'text-skill', 'Text skill', 'Text body.') - await writeFlatSkill(root, 'resolve-fail', 'Resolve fail', 'Resolve body.') - await writeFlatSkill(root, 'stat-fail', 'Stat fail', 'Stat body.') - await mkdir(join(root, 'empty-dir'), { recursive: true }) - await mkdir(join(root, 'directory-skill/SKILL.md'), { recursive: true }) - await writeFile(join(root, 'binary-skill.md'), Buffer.concat([ - Buffer.from('---\nname: binary-skill\ndescription: Binary skill\n---\n\n'), - Buffer.from([0xff]), - Buffer.from('\n'), + await ctx.plugin(SkillService, { promptFieldMaxLength: 6 }) + ctx.skills.registerProvider(new MemoryProvider([ + { + ...memorySkill('escaped-skill', 'Use safely', 10), + whenToUse: 'Handle & marker', + }, ])) - const ctx = new Context() - await ctx.plugin(TestFileSystem) - const fs = ctx.fs as TestFileSystem - fs.failResolvePaths.add(join(root, 'resolve-fail.md')) - fs.failStatPaths.add(join(root, 'stat-fail.md')) - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['text-skill']) - expect(fs.listDirCalls).toBeGreaterThan(0) - expect(await ctx.skills.get('binary-skill')).toBeUndefined() - }) - - it('uses the filesystem service when locating a workspace project root', async () => { - const home = await tempDir('skill-project-root-fs') - const project = await tempDir('skill-project-root-backend') - const nestedCwd = join(project, 'packages/app') - await mkdir(nestedCwd, { recursive: true }) - await writeSkill(join(project, '.agents/skills'), 'backend-root', 'Backend root skill') - - const ctx = new Context() - await ctx.plugin(TestFileSystem) - const fs = ctx.fs as TestFileSystem - fs.failResolvePaths.add(join(nestedCwd, '.git')) - fs.failStatPaths.add(join(project, 'packages/.git')) - fs.statOverrides.set(join(project, '.git'), { - version: FsVersion('virtual-git'), - type: 'directory', - size: 0, - }) - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - - expect((await ctx.skills.list({ cwd: nestedCwd })).map(skill => [skill.name, skill.source])).toEqual([ - ['backend-root', 'project-agents'], - ]) - }) - - it('degrades when bundled system skill installation fails', async () => { - const home = await tempDir('skill-install-fail') - await writeFile(join(home, '.dsh'), 'not a directory') - await writeSkill(join(home, '.agents/skills'), 'fallback-skill', 'Fallback skill') - - const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) - - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['fallback-skill']) - }) - - it('memoizes disk discovery until runtime skill registrations change', async () => { - const home = await tempDir('skill-cache') - await writeSkill(join(home, '.dsh/skills'), 'initial-skill', 'Initial skill') - - const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['initial-skill']) - await writeSkill(join(home, '.dsh/skills'), 'late-skill', 'Late skill') - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['initial-skill']) - - const dispose = ctx.skills.register({ - name: 'runtime-skill', - description: 'runtime', - content: 'Runtime body.', - directory: 'memory://runtime', - source: 'runtime', - }) - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['initial-skill', 'late-skill', 'runtime-skill']) - - dispose() - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['initial-skill', 'late-skill']) - }) - - it('includes extra roots, optional metadata, and explicit false disable flags', async () => { - const home = await tempDir('skill-extra') - const extra = await tempDir('skill-extra-root') - await writeFile(join(extra, 'extra-skill.md'), [ - '---', - 'name: extra-skill', - 'description: Extra skill', - 'whenToUse: For extra-root tests', - 'disableModelInvocation: false', - 'metadata:', - ' owner: tests', - '---', - '', - 'Extra body.', - ].join('\n')) - - const ctx = new Context() - await ctx.plugin(SkillService, { - dshHome: join(home, '.dsh'), - agentsHome: join(home, '.agents'), - extraRoots: [extra], - installSystemSkills: false, - }) - - expect(await ctx.skills.list()).toEqual([{ - name: 'extra-skill', - description: 'Extra skill', - whenToUse: 'For extra-root tests', - disableModelInvocation: false, - directory: extra, - source: 'extra', - }]) - expect((await ctx.skills.get('extra-skill'))?.metadata).toEqual({ owner: 'tests' }) - expect(await ctx.skills.renderModelListing()).toContain('whenToUse: For extra-root tests') - }) - - it('bounds prompt listing fields without changing stored skill content', async () => { - const home = await tempDir('skill-prompt-bounds') - const longDescription = 'a'.repeat(600) - await writeSkill(join(home, '.dsh/skills'), 'long-skill', longDescription, 'Full body.') - - const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - const listing = await ctx.skills.renderModelListing() - expect(listing).toContain(`${'a'.repeat(497)}...`) - expect(listing).not.toContain('a'.repeat(600)) - expect((await ctx.skills.get('long-skill'))?.description).toBe(longDescription) + expect(listing).toContain('description: Use...') + expect(listing).toContain('whenToUse: Han...') + expect(listing).not.toContain('') + expect(renderPrompt(await ctx.systemPrompt.assemble({ agent: agentForCwd('/tmp') }))).toContain('## Skills') + expect(renderPrompt(await ctx.systemPrompt.assemble())).not.toContain('## Skills') + + const empty = new Context() + await empty.plugin(SystemPrompt, { persona: 'base' }) + await empty.plugin(SkillService) + expect(await empty.skills.renderModelListing()).toBe('') + expect(renderPrompt(await empty.systemPrompt.assemble({ agent: agentForCwd('/tmp') }))).not.toContain('## Skills') + + const direct = new SkillService(new Context(), {}) + expect(await direct.renderModelListing()).toBe('') + const short = new Context() + await short.plugin(SkillService) + short.skills.registerProvider(new MemoryProvider([memorySkill('short-skill', 'Short', 10)])) + expect(await short.skills.renderModelListing()).toContain('description: Short') + + const templated = new Context() + await templated.plugin(SystemPrompt, { persona: 'base' }) + await templated.plugin(SkillService) + templated.skills.registerProvider(new MemoryProvider([memorySkill('templated-skill', 'Use {{placeholder}} safely', 10)])) + const prompt = renderPrompt(await templated.systemPrompt.assemble({ agent: agentForCwd('/tmp') })) + expect(prompt).toContain('description: Use { {placeholder} } safely') }) - it('escapes prompt listing text fields without changing stored skill content', async () => { - const home = await tempDir('skill-prompt-escape') - const root = join(home, '.dsh/skills') - await mkdir(root, { recursive: true }) - await writeFile(join(root, 'escaped-skill.md'), [ - '---', - 'name: escaped-skill', - 'description: Use safely', - 'whenToUse: Handle & marker', - '---', - 'Full body.', - ].join('\n')) - + it('rejects invalid runtime skill registrations and ignores duplicates', async () => { const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + await ctx.plugin(SkillService) + expect(() => ctx.skills.register({ name: 'Bad_Name', description: 'Bad', source: 'runtime', content: 'bad' })).toThrow('invalid skill name') + expect(() => ctx.skills.register({ name: 'no-description', description: '', source: 'runtime', content: 'bad' })).toThrow('requires a description') + expect(await ctx.skills.get('missing-skill')).toBeUndefined() + expect(await ctx.skills.get('Bad_Name')).toBeUndefined() - const listing = await ctx.skills.renderModelListing() - expect(listing).toContain('description: Use </available_skills><oops> safely') - expect(listing).toContain('whenToUse: Handle <tag> & marker') - expect(listing).not.toContain('description: Use safely') - expect((await ctx.skills.get('escaped-skill'))?.description).toBe('Use safely') - }) - - it('adds skill guidance through system prompt assembly without including bodies', async () => { - const home = await tempDir('skill-guidance') - await writeSkill(join(home, '.dsh/skills'), 'research-helper', 'Research helper', 'Long body that must not be listed.') - - const ctx = new Context() - await ctx.plugin(SystemPrompt, { persona: 'base' }) - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - - const prompt = renderPrompt(await ctx.systemPrompt.assemble({ agent: agentForCwd(home) })) - - expect(prompt).toContain('base') - expect(prompt).toContain('## Skills\n') - expect(prompt).toContain('research-helper') - expect(prompt).toContain('source="project-dsh"') - expect(prompt).not.toContain(home) - expect(prompt).not.toContain('Long body') - expect(prompt.match(/## Skills/g)).toHaveLength(1) - - const copyCtx = new Context() - await copyCtx.plugin(SystemPrompt, { persona: 'base' }) - await copyCtx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - copyCtx.on('system-prompt/assemble', async (_assembly, _context, next) => { - const result = await next() - return { ...result, sections: [...result.sections] } - }) - const copiedPrompt = renderPrompt(await copyCtx.systemPrompt.assemble({ agent: agentForCwd(home) })) - expect(copiedPrompt.match(/## Skills/g)).toHaveLength(1) - }) - - it('cleans up runtime registered skills when the contributing fiber is disposed', async () => { - const ctx = new Context() - const home = await tempDir('skill-runtime') - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - - const fiber = await ctx.plugin(Object.assign((inner: Context) => { - inner.skills.register({ - name: 'runtime-skill', - description: 'runtime', - content: 'Runtime body.', - directory: 'memory://runtime', - source: 'runtime', - }) - }, { inject: ['skills'] })) - - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['runtime-skill']) - await fiber.dispose() - expect(await ctx.skills.list()).toEqual([]) - }) - - it('bounds discovery cache entries across many project roots', async () => { - const home = await tempDir('skill-cache-bound-home') - const projects = await Promise.all(Array.from({ length: 129 }, async (_, index) => { - const project = await tempDir(`skill-cache-bound-project-${index}`) - await mkdir(join(project, '.git'), { recursive: true }) - await writeSkill(join(project, '.dsh/skills'), `project-${index}`, `Project ${index}`) - return project - })) - - const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - - const firstProject = projects[0] - if (firstProject === undefined) throw new Error('expected at least one project') - expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['project-0']) - await writeSkill(join(firstProject, '.dsh/skills'), 'late-project-0', 'Late project 0') - expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['project-0']) - - for (const project of projects.slice(1)) { - await ctx.skills.list({ cwd: project }) - } - - expect((await ctx.skills.list({ cwd: firstProject })).map(skill => skill.name)).toEqual(['late-project-0', 'project-0']) - }) - - it('removes runtime registered skills when the returned disposer is called', async () => { - const home = await tempDir('skill-runtime-disposer') - const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - - const dispose = ctx.skills.register({ - name: 'manual-dispose', - description: 'manual', - content: 'Manual body.', - directory: 'memory://manual', - source: 'runtime', - }) - - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['manual-dispose']) - dispose() - expect(await ctx.skills.list()).toEqual([]) - }) - - it('keeps the first runtime skill when a duplicate name is registered', async () => { - const home = await tempDir('skill-runtime-duplicate') - const ctx = new Context() - const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => undefined) - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - - const firstDispose = ctx.skills.register({ - name: 'same-runtime', - description: 'first', - content: 'First body.', - directory: 'memory://first', - source: 'runtime', - }) - const duplicateDispose = ctx.skills.register({ - name: 'same-runtime', - description: 'second', - content: 'Second body.', - directory: 'memory://second', - source: 'runtime', - }) - - await expect(ctx.skills.get('same-runtime')).resolves.toMatchObject({ - description: 'first', - content: 'First body.', - directory: 'memory://first', - }) - expect(warn).toHaveBeenCalledWith(expect.stringContaining('runtime skill "same-runtime"')) - - duplicateDispose() - await expect(ctx.skills.get('same-runtime')).resolves.toMatchObject({ - description: 'first', - content: 'First body.', - }) - - firstDispose() - await expect(ctx.skills.get('same-runtime')).resolves.toBeUndefined() - }) - - it('rejects invalid runtime skill registrations', async () => { - const home = await tempDir('skill-runtime-invalid') - const ctx = new Context() - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) - - expect(() => ctx.skills.register({ - name: 'Bad_Name', - description: 'bad', - content: 'bad', - directory: 'memory://bad', - source: 'runtime', - })).toThrow('invalid skill name') - expect(() => ctx.skills.register({ - name: 'empty-description', - description: '', - content: 'bad', - directory: 'memory://bad', - source: 'runtime', - })).toThrow('requires a description') + const disposeFirst = ctx.skills.register({ name: 'same-skill', description: 'First', source: 'runtime', content: 'first' }) + const disposeSecond = ctx.skills.register({ name: 'same-skill', description: 'Second', source: 'runtime', content: 'second' }) + disposeSecond() + expect((await ctx.skills.get('same-skill'))?.description).toBe('First') + disposeFirst() + expect(await ctx.skills.get('same-skill')).toBeUndefined() }) }) diff --git a/packages/core/skill/tsconfig.json b/packages/core/skill/tsconfig.json index db80ec56ed..df8e8f2f9c 100644 --- a/packages/core/skill/tsconfig.json +++ b/packages/core/skill/tsconfig.json @@ -9,8 +9,7 @@ { "path": "../../../vendor/cosmokit" }, { "path": "../../../vendor/cordis" }, { "path": "../../../vendor/schemastery" }, - { "path": "../../fs/fs" }, - { "path": "../../llm/llm" }, - { "path": "../agent" } + { "path": "../agent" }, + { "path": "../system-prompt" } ] } diff --git a/packages/core/tool-skill/README.md b/packages/core/tool-skill/README.md index 21f296ba66..07e3c5beee 100644 --- a/packages/core/tool-skill/README.md +++ b/packages/core/tool-skill/README.md @@ -10,6 +10,6 @@ Requires `ctx.tools` and `ctx.skills` (`inject: ['tools', 'skills']`). |---|---|---| | `name` | string (required) | Exact kebab-case skill name from the available skills listing. | -Execution uses the calling agent's `session.header.cwd` to resolve project-local skills. A successful call returns a text block containing ``, the skill body, the skill base directory, and relative-path guidance. Unknown names, invalid names, and skills marked `disableModelInvocation: true` return `isError` tool results through the normal tool registry error path. +Execution uses the calling agent's `session.header.cwd` so workspace-sensitive providers can resolve the right winning skill. A successful call returns a text block containing ``, the skill body, and provider resource guidance. Local filesystem skills include a base directory for resolving relative files; remote or embedded providers can return URL or opaque provider-managed guidance instead. Unknown names, invalid names, and skills marked `disableModelInvocation: true` return `isError` tool results through the normal tool registry error path. The tool does not call `agent.inject()` in v1. Its result is already recorded as the tool result and becomes available to the next model step without duplicating the content as synthetic context. diff --git a/packages/core/tool-skill/package.json b/packages/core/tool-skill/package.json index 508323d729..91d49479b2 100644 --- a/packages/core/tool-skill/package.json +++ b/packages/core/tool-skill/package.json @@ -32,6 +32,7 @@ "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-skill": "workspace:^", + "@deepseek-ai/dsh-skill-local": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", "cordis": "^4.0.0-rc.6" } diff --git a/packages/core/tool-skill/src/index.ts b/packages/core/tool-skill/src/index.ts index 9cde207edf..d234e2742b 100644 --- a/packages/core/tool-skill/src/index.ts +++ b/packages/core/tool-skill/src/index.ts @@ -6,6 +6,7 @@ import type { Context } from 'cordis' import { defineTool } from '@deepseek-ai/dsh-tools' +import { assertNever } from '@deepseek-ai/dsh-llm' import { isSkillName, type SkillDefinition } from '@deepseek-ai/dsh-skill' export const name = 'tool-skill' @@ -39,14 +40,34 @@ export function apply(ctx: Context): void { } function renderSkillContent(skill: SkillDefinition): string { + const resourceHint = renderResourceHint(skill) return [ ``, `# Skill: ${skill.name}`, '', skill.content, '', - `Base directory for this skill: ${skill.directory}`, - 'Resolve relative files mentioned by this skill against the base directory before using them.', + ...resourceHint, '', ].join('\n') } + +function renderResourceHint(skill: SkillDefinition): string[] { + const base = skill.resourceBase + if (base === undefined) { + return [`Resources for this skill are managed by provider "${skill.provider}".`] + } + switch (base.kind) { + case 'directory': + return [ + `Base directory for this skill: ${base.path}`, + 'Resolve relative files mentioned by this skill against the base directory before using them.', + ] + case 'url': + return [`Base URL for this skill: ${base.url}`] + case 'opaque': + return [`Resources for this skill: ${base.description}`] + default: + return assertNever(base, 'SkillResourceBase.kind') + } +} diff --git a/packages/core/tool-skill/tests/tool-skill.spec.ts b/packages/core/tool-skill/tests/tool-skill.spec.ts index 05317262ce..fe87f01462 100644 --- a/packages/core/tool-skill/tests/tool-skill.spec.ts +++ b/packages/core/tool-skill/tests/tool-skill.spec.ts @@ -7,6 +7,7 @@ import { CallId } from '@deepseek-ai/dsh-llm' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' import SkillService from '@deepseek-ai/dsh-skill' +import * as SkillLocal from '@deepseek-ai/dsh-skill-local' import * as toolSkill from '@deepseek-ai/dsh-tool-skill' async function tempDir(name: string): Promise { @@ -23,7 +24,8 @@ async function setup(home: string): Promise { const ctx = new Context() await ctx.plugin(SystemPrompt) await ctx.plugin(ToolRegistry) - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + await ctx.plugin(SkillService) + await ctx.plugin(SkillLocal, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) await ctx.plugin(toolSkill) return ctx } @@ -34,7 +36,8 @@ describe('dsh-tool-skill', () => { await ctx.plugin(SystemPrompt) await ctx.plugin(ToolRegistry) const home = await tempDir('tool-schema') - await ctx.plugin(SkillService, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false }) + await ctx.plugin(SkillService) + await ctx.plugin(SkillLocal, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) const fiber = await ctx.plugin(toolSkill) expect(ctx.tools.schemas().map(tool => tool.name)).toEqual(['skill']) @@ -70,6 +73,65 @@ describe('dsh-tool-skill', () => { expect(block.text).toContain('Project instructions.') }) + it('renders provider-managed resource hints for non-local skills', async () => { + const home = await tempDir('tool-resource-hints') + const ctx = await setup(home) + ctx.skills.register({ + name: 'opaque-skill', + description: 'Opaque skill', + source: 'runtime', + provider: 'runtime', + resourceBase: { kind: 'opaque', description: 'runtime memory' }, + content: 'Opaque instructions.', + }) + ctx.skills.register({ + name: 'url-skill', + description: 'URL skill', + source: 'runtime', + provider: 'runtime', + resourceBase: { kind: 'url', url: 'https://skills.example.test/url-skill' }, + content: 'URL instructions.', + }) + ctx.skills.register({ + name: 'provider-skill', + description: 'Provider skill', + source: 'runtime', + provider: 'runtime', + content: 'Provider instructions.', + }) + + const opaque = await ctx.tools.execute({ callId: CallId('c2'), name: 'skill', arguments: { name: 'opaque-skill' } }) + const url = await ctx.tools.execute({ callId: CallId('c3'), name: 'skill', arguments: { name: 'url-skill' } }) + const provider = await ctx.tools.execute({ callId: CallId('c4'), name: 'skill', arguments: { name: 'provider-skill' } }) + + if (opaque.content[0]?.type !== 'text' || url.content[0]?.type !== 'text' || provider.content[0]?.type !== 'text') { + throw new Error('expected text tool results') + } + expect(opaque.content[0].text).toContain('Resources for this skill: runtime memory') + expect(url.content[0].text).toContain('Base URL for this skill: https://skills.example.test/url-skill') + expect(provider.content[0].text).toContain('Resources for this skill are managed by provider "runtime"') + }) + + it('fails loud on an unknown resource base kind', async () => { + const home = await tempDir('tool-resource-assert-never') + const ctx = await setup(home) + ctx.skills.register({ + name: 'rogue-resource-skill', + description: 'Rogue resource skill', + source: 'runtime', + provider: 'runtime', + resourceBase: { kind: 'future' } as never, + content: 'Rogue instructions.', + }) + + const result = await ctx.tools.execute({ callId: CallId('c5'), name: 'skill', arguments: { name: 'rogue-resource-skill' } }) + + expect(result.isError).toBe(true) + const block = result.content[0] + if (block?.type !== 'text') throw new Error('expected text tool result') + expect(block.text).toContain('unreachable variant') + }) + it('returns isError for unknown, invalid, and model-disabled skills', async () => { const home = await tempDir('tool-errors') await writeSkill(join(home, '.dsh/skills'), 'hidden-skill', 'Hidden skill', 'Hidden instructions.') diff --git a/packages/ui/acp-agent/README.md b/packages/ui/acp-agent/README.md index 4a114619a6..25bc94cd32 100644 --- a/packages/ui/acp-agent/README.md +++ b/packages/ui/acp-agent/README.md @@ -1,6 +1,6 @@ # @deepseek-ai/dsh-acp-agent -The **ACP server app**: a Cordis app plugin that composes the providerless agent spine ([`@deepseek-ai/dsh-agent-core`](../../core/agent-core/README.md)) with the front-door cluster an [Agent Client Protocol](../acp/README.md) server needs, and a `bin` that boots a leaf `cordis.yml` speaking ACP JSON-RPC on stdio. +The **ACP server app**: a Cordis app plugin that composes the default agent spine ([`@deepseek-ai/dsh-agent-core`](../../core/agent-core/README.md)) with the front-door cluster an [Agent Client Protocol](../acp/README.md) server needs, and a `bin` that boots a leaf `cordis.yml` speaking ACP JSON-RPC on stdio. It is the structured counterpart to [`@deepseek-ai/dsh-stdio-agent`](../stdio-agent/README.md): both consume the same spine, but this one bakes in the OPPOSITE front-door cluster. diff --git a/packages/ui/acp-agent/src/index.ts b/packages/ui/acp-agent/src/index.ts index 1f854a095c..a6be7f9de6 100644 --- a/packages/ui/acp-agent/src/index.ts +++ b/packages/ui/acp-agent/src/index.ts @@ -1,5 +1,5 @@ /** - * The ACP server app: the providerless agent spine ({@link + * The ACP server app: the default agent spine ({@link * @deepseek-ai/dsh-agent-core}) plus the coupled front-door cluster an ACP * server needs — JSONL session persistence and the {@link @deepseek-ai/dsh-acp} * bridge, and DELIBERATELY NOTHING that writes to stdout. @@ -52,7 +52,7 @@ export interface Config { persona?: string /** Directory the JSONL session backend writes under. Defaults to `./.sessions`. */ persistenceRoot?: string - /** Skill discovery config forwarded to the shared agent-core spine. */ + /** Skill registry/local-provider config forwarded to the shared agent-core spine. */ skills?: agentCore.SkillConfig } diff --git a/packages/ui/acp-agent/tests/acp-agent.spec.ts b/packages/ui/acp-agent/tests/acp-agent.spec.ts index 1e63782aaa..33d837d030 100644 --- a/packages/ui/acp-agent/tests/acp-agent.spec.ts +++ b/packages/ui/acp-agent/tests/acp-agent.spec.ts @@ -27,7 +27,7 @@ async function mount(config: acpAgent.Config): Promise { async function isolatedSkillsConfig(): Promise> { const home = await mkdtemp(join(tmpdir(), 'dsh-acp-agent-skills-')) - return { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false } + return { local: { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') } } } async function withIsolatedSkillHomes(run: () => Promise): Promise { @@ -83,10 +83,7 @@ describe('dsh-acp-agent composition', () => { acpAgent.apply(ctx, { model: 'mock' }) await new Promise(resolve => setTimeout(resolve, 50)) expect(ctx.skills).toBeDefined() - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(expect.arrayContaining([ - 'dsh-plugin-creator', - 'dsh-skill-creator', - ])) + expect(await ctx.skills.list()).toEqual([]) await ctx.fiber.dispose() }) }) diff --git a/packages/ui/stdio-agent/README.md b/packages/ui/stdio-agent/README.md index 1c8dc522c6..aa1158dc4a 100644 --- a/packages/ui/stdio-agent/README.md +++ b/packages/ui/stdio-agent/README.md @@ -1,6 +1,6 @@ # @deepseek-ai/dsh-stdio-agent -The **terminal stdio chat app**: a Cordis app plugin that composes the providerless agent spine ([`@deepseek-ai/dsh-agent-core`](../../core/agent-core/README.md)) with the front-door cluster a terminal chat needs, and a `bin` that boots a leaf `cordis.yml`. +The **terminal stdio chat app**: a Cordis app plugin that composes the default agent spine ([`@deepseek-ai/dsh-agent-core`](../../core/agent-core/README.md)) with the front-door cluster a terminal chat needs, and a `bin` that boots a leaf `cordis.yml`. It is the readline counterpart to [`@deepseek-ai/dsh-acp-agent`](../acp-agent/README.md): both consume the same spine, but each bakes in the OPPOSITE front-door cluster. diff --git a/packages/ui/stdio-agent/src/index.ts b/packages/ui/stdio-agent/src/index.ts index f74c5b6c25..de5fbb55d5 100644 --- a/packages/ui/stdio-agent/src/index.ts +++ b/packages/ui/stdio-agent/src/index.ts @@ -1,5 +1,5 @@ /** - * The stdio chat app: the providerless agent spine ({@link + * The stdio chat app: the default agent spine ({@link * @deepseek-ai/dsh-agent-core}) plus the coupled front-door cluster a terminal * chat needs — a console logger, the readline UI (the in-package `stdio-chat` * module), JSONL session @@ -67,7 +67,7 @@ export interface Config { persistenceRoot?: string /** stdin-chat banner printed once on start. Defaults to `'ready.'`. */ welcome?: string - /** Skill discovery config forwarded to the shared agent-core spine. */ + /** Skill registry/local-provider config forwarded to the shared agent-core spine. */ skills?: agentCore.SkillConfig /** * If set, the `main` agent RESUMES this persisted session id instead of diff --git a/packages/ui/stdio-agent/tests/stdio-agent.spec.ts b/packages/ui/stdio-agent/tests/stdio-agent.spec.ts index 269bff0693..2b8eea8316 100644 --- a/packages/ui/stdio-agent/tests/stdio-agent.spec.ts +++ b/packages/ui/stdio-agent/tests/stdio-agent.spec.ts @@ -34,7 +34,7 @@ async function mount(config: stdioAgent.Config): Promise { async function isolatedSkillsConfig(): Promise> { const home = await mkdtemp(join(tmpdir(), 'dsh-stdio-agent-skills-')) - return { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents'), installSystemSkills: false } + return { local: { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') } } } async function withIsolatedSkillHomes(run: () => Promise): Promise { @@ -93,10 +93,7 @@ describe('dsh-stdio-agent app', () => { stdioAgent.apply(ctx, { model: 'mock' }) await new Promise(resolve => setTimeout(resolve, 80)) expect(ctx.skills).toBeDefined() - expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(expect.arrayContaining([ - 'dsh-plugin-creator', - 'dsh-skill-creator', - ])) + expect(await ctx.skills.list()).toEqual([]) await ctx.fiber.dispose() }) }) diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index bdc3dacdda..cc720d60c2 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -214,6 +214,9 @@ importers: '@deepseek-ai/dsh-skill': specifier: workspace:^ version: link:../skill + '@deepseek-ai/dsh-skill-local': + specifier: workspace:^ + version: link:../skill-local '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../system-prompt @@ -281,19 +284,10 @@ importers: schemastery: specifier: ^3.18.0 version: 3.18.0 - yaml: - specifier: ^2.4.2 - version: 2.9.0 devDependencies: '@deepseek-ai/dsh-agent': specifier: workspace:^ version: link:../agent - '@deepseek-ai/dsh-fs': - specifier: workspace:^ - version: link:../../fs/fs - '@deepseek-ai/dsh-llm': - specifier: workspace:^ - version: link:../../llm/llm '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../system-prompt @@ -301,6 +295,25 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/core/skill-local: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + yaml: + specifier: ^2.4.2 + version: 2.9.0 + devDependencies: + '@deepseek-ai/dsh-fs': + specifier: workspace:^ + version: link:../../fs/fs + '@deepseek-ai/dsh-skill': + specifier: workspace:^ + version: link:../skill + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/core/system-prompt: dependencies: schemastery: @@ -325,6 +338,9 @@ importers: '@deepseek-ai/dsh-skill': specifier: workspace:^ version: link:../skill + '@deepseek-ai/dsh-skill-local': + specifier: workspace:^ + version: link:../skill-local '@deepseek-ai/dsh-tools': specifier: workspace:^ version: link:../tools diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 2b2eb4e4f7..5225ca544b 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -127,10 +127,10 @@ const SERVICE_ROLES: ServiceRole[] = [ { key: 'skills', pkg: 'skill', - title: 'Skill discovery registry', + title: 'Skill provider registry', mode: 'core', - consumers: ['agent-core', 'tool-skill'], - note: 'Discovers project/user/system skills, injects request-time listings, and serves full skill bodies to the skill tool.', + consumers: ['agent-core', 'skill-local', 'tool-skill'], + note: 'Merges provider skill catalogs, injects request-time listings, and serves full skill bodies to the skill tool.', }, { key: 'agents', diff --git a/scripts/gen-tool-catalog.ts b/scripts/gen-tool-catalog.ts index 70899af9bd..901bd7f51d 100644 --- a/scripts/gen-tool-catalog.ts +++ b/scripts/gen-tool-catalog.ts @@ -47,6 +47,7 @@ import * as WebFetchLocal from '@deepseek-ai/dsh-web-fetch-local' import SubagentService from '@deepseek-ai/dsh-subagent' import * as SubagentMock from '@deepseek-ai/dsh-subagent-mock' import SkillService from '@deepseek-ai/dsh-skill' +import * as SkillLocal from '@deepseek-ai/dsh-skill-local' import * as ToolBash from '@deepseek-ai/dsh-tool-bash' import * as ToolFs from '@deepseek-ai/dsh-tool-fs' import * as ToolSkill from '@deepseek-ai/dsh-tool-skill' @@ -138,10 +139,10 @@ const TOOL_PACKAGES: ToolPackage[] = [ requires: ['ctx.tools', 'ctx.skills'], writes: ['tool/call', 'tool/result'], async mount(ctx) { - await ctx.plugin(SkillService, { + await ctx.plugin(SkillService) + await ctx.plugin(SkillLocal, { dshHome: resolve(root, '.tmp/tool-catalog/.dsh'), agentsHome: resolve(root, '.tmp/tool-catalog/.agents'), - installSystemSkills: false, }) await ctx.plugin(ToolSkill) }, diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index fb81b6ec12..1544dbf965 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -65,10 +65,13 @@ { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FileReadOutcome", "source": "packages/fs/tool-fs/src/read-render.ts" }, { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillSource", "source": "packages/core/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillResourceBase", "source": "packages/core/skill/src/index.ts" }, { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillSummary", "source": "packages/core/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillCandidate", "source": "packages/core/skill/src/index.ts" }, { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillDefinition", "source": "packages/core/skill/src/index.ts" }, { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillRegistration", "source": "packages/core/skill/src/index.ts" }, { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillLookupOptions", "source": "packages/core/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillProvider", "source": "packages/core/skill/src/index.ts" }, { "doc": "docs/core-data-structures/skills.md", "symbol": "Config", "source": "packages/core/skill/src/index.ts" }, { "doc": "docs/core-data-structures/compaction.md", "symbol": "CompactionResult", "source": "packages/compact/compact/src/types.ts" }, diff --git a/tsconfig.json b/tsconfig.json index 7de50738ff..75ed8c2d31 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -31,6 +31,7 @@ { "path": "./packages/core/agent" }, { "path": "./packages/core/tools" }, { "path": "./packages/core/skill" }, + { "path": "./packages/core/skill-local" }, { "path": "./packages/core/tool-skill" }, { "path": "./packages/core/agent-loop" }, { "path": "./packages/core/agent-core" }, From 77333c0a19c034890b4197deedc9fd15f2c75d54 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Wed, 8 Jul 2026 16:16:08 +0800 Subject: [PATCH 072/232] fix(agent): correct session-prefix composition-order docs; scrub messagePrefix in snapshots MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Two ds-review-bot findings: The seam JSDoc claimed extending 'await next()' composes in registration order — false for the append form: the waterfall unwinds innermost-first, so appending places later-registered contributions first. The canonical contribution is now documented as the PREPEND '[mine, ...await next()]' (registration order on the wire), with the append form's reverse-order behavior stated explicitly; the ordering test now uses the canonical pattern in both listeners. scrubRequestHeaders tokenized only system/tools, so a fixture recording a composed session prefix would carry its raw text (workspace-specific churn/leak). The scrubber now maps each header/delta messagePrefix entry to a {{messagePrefix}} token — count stays a structural fact, absence stays absent, the empty-array transition stays visible — with normalize.spec coverage for the header, delta, absence, and odd-shape paths. --- docs/cordis-catalog/events.md | 10 +++--- docs/event-producer-consumer.md | 8 ++--- .../agent-loop/tests/interception.spec.ts | 9 +++--- packages/core/agent/src/types.ts | 11 +++++-- .../support/acp-snapshot/src/normalize.ts | 30 ++++++++++++----- .../acp-snapshot/tests/normalize.spec.ts | 32 +++++++++++++++++++ 6 files changed, 76 insertions(+), 24 deletions(-) diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 20cd367f32..e9b213c2fa 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -47,7 +47,7 @@ A step or turn errored. The loop reports a failure here (plus the logger) even w Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:455`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:460`](../../packages/core/agent/src/types.ts) ### `agent/pre-step` — serial @@ -105,7 +105,7 @@ Waterfall: compose the SESSION PREFIX — request-only messages placed in front This is the home for session-stable openers the model must always see but that must NOT become durable history — a skills catalog, an AGENTS.md digest, a workspace baseline: `Session.deriveMessages()` never returns the prefix, and the header events are its only durable record, so the request stays reconstructable from the log. Content that CHANGES mid-session belongs in the append-only history channels instead — `agent.inject()`, a `tools/post-execute` decision's `additionalContext`, prompt-submit `additionalContext` — each a durable `context/message` paid once and prefix-cached thereafter. -The seed is a frozen empty list; a contributing listener returns a NEW array extending `await next()` (`[...prefix, mine]` — never an in-place push), so contributions compose across plugins in registration order and compose deterministically for a fixed plugin set. Call `next()` to delegate, or return a list without it to short-circuit. +The seed is a frozen empty list; a contributing listener returns a NEW array — never an in-place push. The canonical contribution is a PREPEND, `[mine, ...await next()]`: the waterfall unwinds innermost-first (the LAST-registered listener's `next()` resolves first), so prepending yields registration order on the wire, and every plugin using it composes deterministically. The append form `[...await next(), mine]` is legal but places a contribution AFTER every later-registered plugin's — reverse registration order when all contributors append. Call `next()` to delegate, or return a list without it to short-circuit. ```ts cordis-catalog 'agent/session-prefix'(agent: Agent, prefix: Message[], signal: AbortSignal, next: () => Promise): Promise @@ -113,7 +113,7 @@ The seed is a frozen empty list; a contributing listener returns a NEW array ext Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:420`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:425`](../../packages/core/agent/src/types.ts) ### `agent/session-start` — emit @@ -149,7 +149,7 @@ Waterfall: post-process the assembled assistant Message before tool dispatch (va Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:430`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:435`](../../packages/core/agent/src/types.ts) ### `agent/turn-continuation` — waterfall @@ -161,7 +161,7 @@ Waterfall: override the turn-continuation decision via a typed ContinuationDecis Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:443`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:448`](../../packages/core/agent/src/types.ts) ## `fs/*` diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 834dfc6d69..534a0af269 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -9,16 +9,16 @@ This matrix shows which packages dispatch each harness-owned event and which pac | --- | --- | --- | --- | --- | | `agent/created` | `emit` | [`packages/core/agent/src/types.ts:265`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:272`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:455`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:460`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | | `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:350`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | | `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:363`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:290`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | | `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:387`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:420`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:425`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | | `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:305`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `agent/status` | `emit` | [`packages/core/agent/src/types.ts:281`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:430`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:443`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:435`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:448`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | diff --git a/packages/core/agent-loop/tests/interception.spec.ts b/packages/core/agent-loop/tests/interception.spec.ts index c3f301afc7..d97710e6d6 100644 --- a/packages/core/agent-loop/tests/interception.spec.ts +++ b/packages/core/agent-loop/tests/interception.spec.ts @@ -352,23 +352,24 @@ describe('agent/session-prefix', () => { expect(agent.session.deriveMessages()[0]).toEqual({ role: 'user', content: [{ type: 'text', text: 'go' }] }) }) - it('contributions compose across listeners in registration order', async () => { + it('the canonical prepend pattern composes contributions in registration order', async () => { const adapter = new MockAdapter([textResponse('ok')]) const ctx = await harness(adapter) const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + // Both listeners use the canonical `[mine, ...await next()]` prepend: the + // waterfall unwinds innermost-first (the second listener's array is built + // first), so prepending puts the FIRST-registered contribution first. ctx.on('agent/session-prefix', async (_agent, _prefix, _signal, next): Promise => { return [{ role: 'user', content: [{ type: 'text', text: 'first' }] }, ...await next()] }) ctx.on('agent/session-prefix', async (_agent, _prefix, _signal, next): Promise => { - return [...await next(), { role: 'user', content: [{ type: 'text', text: 'second' }] }] + return [{ role: 'user', content: [{ type: 'text', text: 'second' }] }, ...await next()] }) send(agent, 'hi') await waitForIdle(ctx, agent) - // Registration order composes: the first listener runs last on the way - // out (waterfall), so its prepend lands first. const texts = adapter.requests[0]!.messages.map(m => m.content[0]?.type === 'text' ? m.content[0].text : '') expect(texts).toEqual(['first', 'second', 'hi']) }) diff --git a/packages/core/agent/src/types.ts b/packages/core/agent/src/types.ts index 27af421b17..9121fe87bb 100644 --- a/packages/core/agent/src/types.ts +++ b/packages/core/agent/src/types.ts @@ -408,9 +408,14 @@ declare module 'cordis' { * durable `context/message` paid once and prefix-cached thereafter. * * The seed is a frozen empty list; a contributing listener returns a NEW - * array extending `await next()` (`[...prefix, mine]` — never an in-place - * push), so contributions compose across plugins in registration order - * and compose deterministically for a fixed plugin set. Call `next()` to + * array — never an in-place push. The canonical contribution is a + * PREPEND, `[mine, ...await next()]`: the waterfall unwinds + * innermost-first (the LAST-registered listener's `next()` resolves + * first), so prepending yields registration order on the wire, and every + * plugin using it composes deterministically. The append form + * `[...await next(), mine]` is legal but places a contribution AFTER + * every later-registered plugin's — reverse registration order when all + * contributors append. Call `next()` to * delegate, or return a list without it to short-circuit. * @param agent - the agent whose session prefix is being composed. * @param prefix - the frozen empty seed; return an extended replacement to contribute. diff --git a/packages/support/acp-snapshot/src/normalize.ts b/packages/support/acp-snapshot/src/normalize.ts index 2cbe914b42..017dd504b3 100644 --- a/packages/support/acp-snapshot/src/normalize.ts +++ b/packages/support/acp-snapshot/src/normalize.ts @@ -13,8 +13,9 @@ * (deterministic — `seq = log.length`, part of the event-log contract). * * A separate, composable normalizer — {@link scrubRequestHeaders} — replaces - * the bulky request-header CONTENT (the composed system prompt and the tool - * schema list) with `{{system}}`/`{{tools}}` tokens. It is deliberately NOT + * the bulky request-header CONTENT (the composed system prompt, the tool + * schema list, and the session prefix) with + * `{{system}}`/`{{tools}}`/`{{messagePrefix}}` tokens. It is deliberately NOT * folded into {@link normalizeSessionLog}: each suite's one header-pinning * scenario compares that content verbatim, every other scenario composes the * scrub in (the `pinsHeader` flag on the scenario table, consumed by the suite @@ -30,6 +31,7 @@ const SESSION_ID = '{{sessionId}}' const CWD = '{{cwd}}' const SYSTEM = '{{system}}' const TOOLS = '{{tools}}' +const MESSAGE_PREFIX = '{{messagePrefix}}' /** A UUID v4 string, the shape `randomUUID()` produces for session ids. */ const UUID_RE = /[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/gi @@ -135,15 +137,22 @@ export function normalizeSessionLog(rawLog: string, ctx: NormalizeContext): stri /** * Replace request-header CONTENT in a session JSONL with stable tokens, * keeping its structure: a `request/header` event's `data.header.system` → - * `{{system}}` and `data.header.tools` → `{{tools}}`; a + * `{{system}}`, `data.header.tools` → `{{tools}}`, and + * `data.header.messagePrefix` → one `{{messagePrefix}}` token per message + * (the session prefix is model-visible bulk — an AGENTS digest, a skills + * catalog — so its COUNT stays a structural fact while its text never lands + * in a fixture); a * `request/header-delta` event keeps every structural fact — the system * delta's `keepStart`/`keepEnd` line positions and inserted-line COUNT (one * `{{system}}` token per inserted line), the tools delta's - * added/removed/changed tool NAMES — and tokenizes only the bulk (prompt - * text; each added/changed schema's fields other than `name` → `{{tools}}`), + * added/removed/changed tool NAMES, the prefix replacement's message COUNT — + * and tokenizes only the bulk (prompt + * text; each added/changed schema's fields other than `name` → `{{tools}}`; + * each replacement prefix message → `{{messagePrefix}}`), * so two different deltas still compare different. - * Absent fields stay absent — WHETHER a header carried a system prompt or - * tools is behavior and stays visible; `config` and `reason` are small and + * Absent fields stay absent — WHETHER a header carried a system prompt, + * tools, or a prefix is behavior and stays visible; `config` and `reason` + * are small and * stable, so they stay verbatim (a model swap churns every fixture by design * — it invalidates the recorded responses; a prompt/schema edit churns none — * replay never reads this content, see dsh-llm-replay). @@ -166,9 +175,10 @@ export function scrubRequestHeaders(rawLog: string): string { if (record.type === 'request/header') { const header = data.header as Record | null | undefined if (header === null || typeof header !== 'object') return line - if (!('system' in header) && !('tools' in header)) return line + if (!('system' in header) && !('tools' in header) && !('messagePrefix' in header)) return line if ('system' in header) header.system = SYSTEM if ('tools' in header) header.tools = TOOLS + if (Array.isArray(header.messagePrefix)) header.messagePrefix = header.messagePrefix.map(() => MESSAGE_PREFIX) return JSON.stringify(record) } if (record.type === 'request/header-delta') { @@ -183,6 +193,10 @@ export function scrubRequestHeaders(rawLog: string): string { if (Array.isArray(tools.added)) { tools.added = tools.added.map(scrubToolSchema); touched = true } if (Array.isArray(tools.changed)) { tools.changed = tools.changed.map(scrubToolSchema); touched = true } } + if (Array.isArray(data.messagePrefix)) { + data.messagePrefix = data.messagePrefix.map(() => MESSAGE_PREFIX) + touched = true + } return touched ? JSON.stringify(record) : line } return line diff --git a/packages/support/acp-snapshot/tests/normalize.spec.ts b/packages/support/acp-snapshot/tests/normalize.spec.ts index 8ebd1412b9..daa9f8342d 100644 --- a/packages/support/acp-snapshot/tests/normalize.spec.ts +++ b/packages/support/acp-snapshot/tests/normalize.spec.ts @@ -155,6 +155,38 @@ describe('scrubRequestHeaders', () => { expect(toolsOnly).not.toContain('{{system}}') }) + it('scrubs the header session prefix to one token per message, keeping the count', () => { + const ev = headerEvent({ + config: { model: 'm' }, + messagePrefix: [ + { role: 'user', content: [{ type: 'text', text: 'workspace AGENTS digest' }] }, + { role: 'user', content: [{ type: 'text', text: 'skills catalog' }] }, + ], + }) + const out = scrubRequestHeaders(`${headerLine}\n${ev}\n`) + expect(out).toContain('"messagePrefix":["{{messagePrefix}}","{{messagePrefix}}"]') + expect(out).not.toContain('AGENTS digest') + expect(out).not.toContain('skills catalog') + // Absence stays absent — a prefix-less header gains no token… + expect(scrubRequestHeaders(`${headerLine}\n${headerEvent({ system: 's' })}\n`)).not.toContain('{{messagePrefix}}') + // …and a non-array shape passes through untouched. + const odd = JSON.stringify({ type: 'request/header', seq: 4, time: 9, data: { header: { config: { model: 'm' }, messagePrefix: 'weird' }, reason: 'initial' } }) + expect(scrubRequestHeaders(`${headerLine}\n${odd}\n`)).toContain('"messagePrefix":"weird"') + }) + + it('scrubs a header-delta prefix replacement to one token per message', () => { + const delta = JSON.stringify({ + type: 'request/header-delta', seq: 8, time: 9, + data: { messagePrefix: [{ role: 'user', content: [{ type: 'text', text: 'leaked opener' }] }] }, + }) + const out = scrubRequestHeaders(`${headerLine}\n${delta}\n`) + expect(out).toContain('"messagePrefix":["{{messagePrefix}}"]') + expect(out).not.toContain('leaked opener') + // The empty-array transition-to-absence stays a structural fact. + const toNone = JSON.stringify({ type: 'request/header-delta', seq: 9, time: 9, data: { messagePrefix: [] } }) + expect(scrubRequestHeaders(`${headerLine}\n${toNone}\n`)).toContain('"messagePrefix":[]') + }) + it('leaves a delta with no scrubbable payload byte-identical (config-only, or non-array shapes)', () => { const configOnly = JSON.stringify({ type: 'request/header-delta', seq: 8, time: 9, data: { config: { model: 'm2' } } }) const oddShapes = JSON.stringify({ type: 'request/header-delta', seq: 9, time: 9, data: { system: { insert: 'not-an-array' }, tools: null } }) From cdd1ce2ad4ab5851de949f13ba085b306b8e70b2 Mon Sep 17 00:00:00 2001 From: pku-xht Date: Wed, 8 Jul 2026 15:31:14 +0800 Subject: [PATCH 073/232] feat(subagent): extract dsh-subagent-process shared out-of-process machinery MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The credential env scrub (SENSITIVE_ENV_PATTERN/buildChildEnv), the spawn-failure capture (spawnFailure), the child-exit waits (waitForExit/exitsWithin), and the stdin-EOF -> SIGTERM -> SIGKILL dispose ladder move out of subagent-acp into a new pure library package (the subagent-inprocess shape), with the ladder taking its two grace periods as parameters — defaults stay in the plugin Config. New isolated-config-dir helpers (mkdtemp create, best-effort remove; a pinned dir is never removed) land alongside for the CLAUDE_CONFIG_DIR / CODEX_HOME redirection the RFC names. The ACP backend migrates onto the library with no semantic change: its suite passes with import-path edits only. bash-local keeps its sibling copy, per the RFC's blast-radius call. RFC: docs/rfc/proposed/feature/2026-07-07-claude-code-and-codex-subagent-backends.md --- docs/config-catalog.md | 1 + docs/module-graph.md | 5 +- knip.json | 5 + packages/subagent/README.md | 3 +- packages/subagent/subagent-acp/package.json | 2 + packages/subagent/subagent-acp/src/run.ts | 98 ++---- .../subagent-acp/tests/subagent-acp.spec.ts | 3 +- packages/subagent/subagent-acp/tsconfig.json | 3 + packages/subagent/subagent-process/README.md | 40 +++ .../subagent/subagent-process/package.json | 30 ++ .../subagent/subagent-process/src/index.ts | 207 ++++++++++++ .../tests/subagent-process.spec.ts | 307 ++++++++++++++++++ .../subagent/subagent-process/tsconfig.json | 11 + pnpm-lock.yaml | 9 + tsconfig.build.json | 1 + tsconfig.json | 1 + 16 files changed, 645 insertions(+), 81 deletions(-) create mode 100644 packages/subagent/subagent-process/README.md create mode 100644 packages/subagent/subagent-process/package.json create mode 100644 packages/subagent/subagent-process/src/index.ts create mode 100644 packages/subagent/subagent-process/tests/subagent-process.spec.ts create mode 100644 packages/subagent/subagent-process/tsconfig.json diff --git a/docs/config-catalog.md b/docs/config-catalog.md index e55066101f..c01d42f87d 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -816,3 +816,4 @@ Imported as libraries by other packages; a `cordis.yml` cannot load them. - `@deepseek-ai/dsh-brand` ([`packages/util/brand/src/index.ts`](../packages/util/brand/src/index.ts)) - `@deepseek-ai/dsh-hook-protocol` ([`packages/hooks/hook-protocol/src/index.ts`](../packages/hooks/hook-protocol/src/index.ts)) - `@deepseek-ai/dsh-subagent-inprocess` ([`packages/subagent/subagent-inprocess/src/index.ts`](../packages/subagent/subagent-inprocess/src/index.ts)) +- `@deepseek-ai/dsh-subagent-process` ([`packages/subagent/subagent-process/src/index.ts`](../packages/subagent/subagent-process/src/index.ts)) diff --git a/docs/module-graph.md b/docs/module-graph.md index 5e043d22d4..cadf8d0d14 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -43,6 +43,7 @@ flowchart TD pkg_subagent_acp["subagent-acp"] pkg_subagent_fork["subagent-fork"] pkg_subagent_inprocess["subagent-inprocess"] + pkg_subagent_process["subagent-process"] pkg_subagent_spawn["subagent-spawn"] pkg_tool_subagent["tool-subagent"] end @@ -171,6 +172,7 @@ flowchart TD pkg_subagent_acp --> pkg_agent pkg_subagent_acp --> pkg_llm pkg_subagent_acp --> pkg_subagent + pkg_subagent_acp --> pkg_subagent_process pkg_subagent_inprocess --> pkg_agent pkg_subagent_inprocess --> pkg_llm pkg_subagent_inprocess --> pkg_session @@ -211,6 +213,7 @@ flowchart TD | Package | Group | Depends on | | --- | --- | --- | | [`brand`](../packages/util/brand) | `util` | — | +| [`subagent-process`](../packages/subagent/subagent-process) | `subagent` | — | | [`acp-snapshot`](../packages/support/acp-snapshot) | `support` | — | | [`app-boot`](../packages/ui/app-boot) | `ui` | — | | [`code-runtime`](../packages/code-runtime/code-runtime) | `code-runtime` | — | @@ -248,7 +251,7 @@ flowchart TD | [`hooks-codex`](../packages/hooks/hooks-codex) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools) | | [`agent-core`](../packages/core/agent-core) | `core` | [`agent`](../packages/core/agent), [`agent-loop`](../packages/core/agent-loop), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tool-bash`](../packages/bash/tool-bash), [`tools`](../packages/core/tools) | -| [`subagent-acp`](../packages/subagent/subagent-acp) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent) | +| [`subagent-acp`](../packages/subagent/subagent-acp) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent), [`subagent-process`](../packages/subagent/subagent-process) | | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-subagent`](../packages/subagent/tool-subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent), [`tools`](../packages/core/tools) | | [`hooks-claude`](../packages/hooks/hooks-claude) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`tools`](../packages/core/tools) | diff --git a/knip.json b/knip.json index 8c0f71f3af..1ab6d39a9e 100644 --- a/knip.json +++ b/knip.json @@ -66,6 +66,11 @@ "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts", "tests/mock-acp-server.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] }, + "packages/subagent/subagent-process": { + "entry": ["tests/**/*.spec.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"], + "ignoreDependencies": ["cordis"] + }, "packages/fs/tool-fs": { "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] diff --git a/packages/subagent/README.md b/packages/subagent/README.md index 6da8ee42f5..38c64d22a5 100644 --- a/packages/subagent/README.md +++ b/packages/subagent/README.md @@ -8,9 +8,10 @@ The subagent seam: an agent delegating work to a child agent. Like the [bash](.. | `subagent-inprocess/` | Shared in-process run driver (pure lib; registers nothing) | — | | `subagent-spawn/` | In-process backend: a fresh child agent | (registers on `ctx.subagents`) | | `subagent-fork/` | In-process backend: a child seeded with the parent's completed-turn prefix | (registers on `ctx.subagents`) | +| `subagent-process/` | Shared out-of-process machinery: env scrub, dispose ladder, isolated config dirs (pure lib; registers nothing) | — | | `subagent-acp/` | Out-of-process backend: a child agent in a spawned subprocess, driven over ACP | (registers on `ctx.subagents`) | | `tool-subagent/` | Model-facing `subagent` delegation tool over `ctx.subagents` | (registers on `ctx.tools`) | -The interface lives at `subagent/subagent/`. The in-process `subagent-spawn` / `subagent-fork` backends share the `subagent-inprocess` driver (a pure library — both depend on it, neither on the other), and the out-of-process `subagent-acp` backend ships alongside them here; the test-only `dsh-subagent-mock` (in [support](../support/README.md)) is separate. All **product** packages except the mock. +The interface lives at `subagent/subagent/`. The in-process `subagent-spawn` / `subagent-fork` backends share the `subagent-inprocess` driver (a pure library — both depend on it, neither on the other), the out-of-process `subagent-acp` backend builds on the `subagent-process` library (the credential env scrub, the dispose ladder, isolated config dirs) and ships alongside them here; the test-only `dsh-subagent-mock` (in [support](../support/README.md)) is separate. All **product** packages except the mock. The proposal and design rationale: [docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md](../../docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md). diff --git a/packages/subagent/subagent-acp/package.json b/packages/subagent/subagent-acp/package.json index 2c55051da9..45fc6b072c 100644 --- a/packages/subagent/subagent-acp/package.json +++ b/packages/subagent/subagent-acp/package.json @@ -25,6 +25,7 @@ "@deepseek-ai/dsh-agent": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-subagent": "^0.0.1", + "@deepseek-ai/dsh-subagent-process": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "dependencies": { @@ -35,6 +36,7 @@ "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-subagent": "workspace:^", + "@deepseek-ai/dsh-subagent-process": "workspace:^", "@cordisjs/plugin-loader": "^1.0.0-rc.4", "cordis": "^4.0.0-rc.6" } diff --git a/packages/subagent/subagent-acp/src/run.ts b/packages/subagent/subagent-acp/src/run.ts index d7631f4d8d..a94c923f46 100644 --- a/packages/subagent/subagent-acp/src/run.ts +++ b/packages/subagent/subagent-acp/src/run.ts @@ -22,7 +22,7 @@ * @module @deepseek-ai/dsh-subagent-acp/run */ -import { spawn, type ChildProcess } from 'node:child_process' +import { spawn } from 'node:child_process' import { randomUUID } from 'node:crypto' import { Readable, Writable } from 'node:stream' import { @@ -40,6 +40,7 @@ import { import { AgentId } from '@deepseek-ai/dsh-agent' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import type { SubagentResult, SubagentRun, SubagentStartRequest, SubagentStopReason } from '@deepseek-ai/dsh-subagent' +import { buildChildEnv, disposeChildProcess, spawnFailure } from '@deepseek-ai/dsh-subagent-process' /** * How the client answers a child's `session/request_permission`. The first cut @@ -110,31 +111,6 @@ export const DEFAULT_DISPOSE_EOF_GRACE_MS = 6_000 /** Default grace between SIGTERM and SIGKILL on dispose (the `disposeGraceMs` config; mirrors the bash executor). */ export const DEFAULT_DISPOSE_GRACE_MS = 3_000 -/** - * Credential-shaped ambient env vars are NOT forwarded to the child by default - * (the parent harness's own `DEEPSEEK_API_KEY`/secrets must not leak into a - * spawned process implicitly). Same pattern as the bash executor. The child - * agent needs its OWN credentials to reach a model — those are supplied - * explicitly via {@link AcpRunSpec.env}, which is layered on top AFTER the - * scrub, so an intended `DEEPSEEK_API_KEY` survives while an incidental - * `AWS_SECRET_ACCESS_KEY` does not. - */ -export const SENSITIVE_ENV_PATTERN = /KEY|SECRET|TOKEN/i - -/** - * The ambient env minus credential-shaped vars, plus the spec's explicit env. - * @param extra - explicit vars layered on top AFTER the scrub, so a - * credential-shaped name supplied deliberately still reaches the child. - * @returns the environment to spawn the child with. - */ -export function buildChildEnv(extra: Record): NodeJS.ProcessEnv { - const env: NodeJS.ProcessEnv = {} - for (const [key, value] of Object.entries(process.env)) { - if (!SENSITIVE_ENV_PATTERN.test(key)) env[key] = value - } - return { ...env, ...extra } -} - /** * Map an ACP {@link StopReason} to a harness {@link SubagentStopReason}. * @param reason - the terminal reason from the child's `session/prompt` response. @@ -196,24 +172,6 @@ function toError(value: unknown): Error { return value instanceof Error ? value : new Error(String(value)) } -/** Resolve once the child process exits (any code/signal); immediate if gone. */ -function waitForExit(child: ChildProcess): Promise { - // Already-exited fast path: dispose guards on exitCode before calling, so in - // tests the child is always still alive here. - /* v8 ignore next */ - if (child.exitCode !== null || child.signalCode !== null) return Promise.resolve() - return new Promise(resolve => child.once('exit', () => { resolve() })) -} - -/** Resolve `true` if the child exits within `ms`, `false` on timeout. */ -function exitsWithin(child: ChildProcess, ms: number): Promise { - return Promise.race([ - waitForExit(child).then(() => true), - // `.unref()` so a pending grace timer never keeps the parent's loop alive. - new Promise(resolve => setTimeout(() => { resolve(false) }, ms).unref()), - ]) -} - /** * Start an out-of-process ACP child for `request` and return a {@link SubagentRun}. * @@ -254,13 +212,11 @@ export function startAcpRun(request: SubagentStartRequest, spec: AcpRunSpec): Su env: buildChildEnv(spec.env), stdio: ['pipe', 'pipe', 'inherit'], }) - // A spawn-level failure (e.g. ENOENT for a bad command) is emitted as an - // `error` event, NOT a thrown exception — without a listener Node treats it as - // an unhandled error and crashes the parent. Capture it into a promise the - // result path races, so a bad command settles `error` like any child failure. - const spawnFailed = new Promise((resolve) => { - child.once('error', (err) => { resolve(err) }) - }) + // Same-tick capture (the library's contract): a spawn-level failure (e.g. + // ENOENT for a bad command) is an `error` EVENT that would crash the parent + // unheard; the result path races this promise, so a bad command settles + // `error` like any child failure. + const spawnFailed = spawnFailure(child) // Accumulate the child's streamed assistant text — the SubagentResult output. const output: string[] = [] @@ -393,33 +349,19 @@ export function startAcpRun(request: SubagentStartRequest, spec: AcpRunSpec): Su }, async dispose(): Promise { request.signal?.removeEventListener('abort', onAbort) - // Reach quiescence, not merely request it (dispose must AWAIT the child - // actually stopping). If the child is already gone, nothing to do. - if (child.exitCode !== null || child.signalCode !== null) return - const eofGraceMs = spec.disposeEofGraceMs - const graceMs = spec.disposeGraceMs - // 1. Graceful: end the ACP request stream (stdin EOF) and let the child - // quiesce ON ITS OWN. Our acp-agent has NO SIGTERM handler in a normal - // session — it tears down via the server bridge's connection-close path - // (conn.closed → per-agent dispose → final session/flush), driven by the - // stdin EOF, NOT by a signal. A prompt response can resolve from a - // turn/end BEFORE that post-turn flush lands, so the child still has - // durable work owed when dispose runs. Give the EOF-driven quiesce a real - // window — wider than a single signal-grace, since the child's own - // teardown may itself be awaiting a signal-trapping grandchild (a bash - // subprocess in its own SIGTERM→SIGKILL grace) plus a flush — and only - // escalate if it overruns. Sending SIGTERM in the same tick (or too soon) - // would default-terminate the child mid-flush, orphaning its nested work. - child.stdin.end() - if (await exitsWithin(child, eofGraceMs)) return - // 2. SIGTERM, then escalate to SIGKILL if it still does not exit within the - // grace period — a child that ignores EOF and traps SIGTERM must not - // wedge dispose forever (the seam requires bounded quiescence). - child.kill('SIGTERM') - if (await exitsWithin(child, graceMs)) return - // 3. Force-kill and await the (now-certain) exit. - child.kill('SIGKILL') - await waitForExit(child) + // Quiescent teardown via the shared ladder (stdin EOF → SIGTERM → + // SIGKILL, awaiting the actual exit). For THIS child the EOF tier is the + // one that matters: our acp-agent has NO SIGTERM handler in a normal + // session — it tears down via the server bridge's connection-close path + // (conn.closed → per-agent dispose → final session/flush), driven by the + // stdin EOF, NOT by a signal — and a prompt response can resolve from a + // turn/end BEFORE that post-turn flush lands, so the child still has + // durable work owed when dispose runs (hence the wide EOF grace; see + // DEFAULT_DISPOSE_EOF_GRACE_MS). + await disposeChildProcess(child, { + disposeEofGraceMs: spec.disposeEofGraceMs, + disposeGraceMs: spec.disposeGraceMs, + }) }, } } diff --git a/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts b/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts index 3eb12fac38..6d351c71d0 100644 --- a/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts +++ b/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts @@ -6,9 +6,10 @@ import { tmpdir } from 'node:os' import { join } from 'node:path' import { fileURLToPath } from 'node:url' import SubagentService from '@deepseek-ai/dsh-subagent' +import { buildChildEnv, SENSITIVE_ENV_PATTERN } from '@deepseek-ai/dsh-subagent-process' import type { Agent } from '@deepseek-ai/dsh-agent' import * as acp from '../src/index.ts' -import { acpStopReason, acpContentText, buildChildEnv, DEFAULT_DISPOSE_EOF_GRACE_MS, DEFAULT_DISPOSE_GRACE_MS, SENSITIVE_ENV_PATTERN, startAcpRun, toAcpPrompt, type AcpRunSpec } from '../src/run.ts' +import { acpStopReason, acpContentText, DEFAULT_DISPOSE_EOF_GRACE_MS, DEFAULT_DISPOSE_GRACE_MS, startAcpRun, toAcpPrompt, type AcpRunSpec } from '../src/run.ts' /** * Keyless integration tests for the ACP subagent backend. Each spawns a REAL diff --git a/packages/subagent/subagent-acp/tsconfig.json b/packages/subagent/subagent-acp/tsconfig.json index 3c06fef150..ab24f60f93 100644 --- a/packages/subagent/subagent-acp/tsconfig.json +++ b/packages/subagent/subagent-acp/tsconfig.json @@ -25,6 +25,9 @@ }, { "path": "../subagent" + }, + { + "path": "../subagent-process" } ] } diff --git a/packages/subagent/subagent-process/README.md b/packages/subagent/subagent-process/README.md new file mode 100644 index 0000000000..597470f52a --- /dev/null +++ b/packages/subagent/subagent-process/README.md @@ -0,0 +1,40 @@ +# @deepseek-ai/dsh-subagent-process + +Shared machinery for **out-of-process subagent backends** — providers that spawn an external agent as a child process, such as the [ACP backend](../subagent-acp/README.md). A pure library (no provider, no registration, no Config): what every spawn-a-CLI-child backend needs to keep the parent deployment's credentials out of the child, tear the child down to quiescence, and isolate it from the host user's on-disk CLI state. Design rationale: [the Claude Code / Codex subagent backends RFC](../../../docs/rfc/proposed/feature/2026-07-07-claude-code-and-codex-subagent-backends.md). + +Every tunable is a **parameter**: the dispose ladder takes its grace periods per call, the config-dir helper takes an optional pinned path. Defaults live in each consuming plugin's Config (defaulted, validated fields changeable from `cordis.yml`), never in this library. + +## What it exports + +### `SENSITIVE_ENV_PATTERN` / `buildChildEnv(extra)` + +The credential env scrub (same pattern as the [bash executor](../../bash/bash-local/README.md)): the child env is the ambient env minus credential-shaped vars (`/KEY|SECRET|TOKEN/i`), with `extra` layered on top AFTER the scrub. `PATH`, `HOME`, `TMPDIR`, locale, and proxy vars survive, so the child CLI runs normally; the parent's own secrets never leak implicitly, while an explicitly supplied credential (the child's OWN key in a backend's `env` config) still reaches the child. + +### `spawnFailure(child)` + +Spawn-failure capture: a promise that resolves (never rejects) with the child's first `error` event. A spawn failure such as `ENOENT` is an event, not a thrown exception — without a listener Node crashes the parent process — so call this in the same tick as `spawn()` and race it in the run's result path; a bad command then settles as an ordinary child-level failure. For a child that spawns cleanly the promise never settles. + +### `waitForExit(child)` / `exitsWithin(child, ms)` + +Exit waits over a `ChildProcess`: resolve once the child exits by any code or signal (immediately if it is already gone), or race that against a timer (`true` = exited in time; the pending timer is `unref()`ed so a grace window never keeps the parent's event loop alive). + +### `disposeChildProcess(child, graces)` + +The three-tier dispose ladder. Resolves only once the child has ACTUALLY exited — quiescence reached, not merely requested (see [defensive patterns](../../../docs/defensive-patterns.md)): + +1. stdin EOF (when stdin is piped), then wait `graces.disposeEofGraceMs` — a cooperative child quiesces on its own, its flushes and nested-subprocess teardown intact; +2. `SIGTERM`, then wait `graces.disposeGraceMs`; +3. `SIGKILL`, then await the now-certain exit — a child that ignores EOF and traps `SIGTERM` cannot wedge dispose forever. + +The two graces (`DisposeLadderGraces`) come from the consuming plugin's `disposeEofGraceMs`/`disposeGraceMs` Config fields; the EOF window is deliberately a separate — usually wider — grace than the signal tier, since a cooperative child's EOF teardown may itself await a signal-trapping grandchild plus a final flush. + +### `createIsolatedConfigDir(prefix, pinnedPath?)` + +A per-run isolated config directory for an external CLI child (the target of `CLAUDE_CONFIG_DIR` / `CODEX_HOME`-style redirection), so child behavior is a function of deployment config alone — never of whatever `~/.claude` / `~/.codex`-style state exists on the host. Returns an `IsolatedConfigDir` handle: `path` goes into the child env, `remove()` runs on dispose. + +- **Fresh (default)**: a private (0700) `mkdtemp` dir under the OS temp root; `remove()` deletes it best-effort (never rejects — a leftover temp dir beats a failed dispose) and is idempotent. +- **Pinned** (`pinnedPath` set): the path is returned as-is — never created, never removed. A deployment that pins a directory to share child state across runs owns that directory's lifecycle. + +## Testing + +`tests/subagent-process.spec.ts`: the env scrub and config-dir helpers run against the real process env and real filesystem (including an rm-failure path proving `remove()` never rejects); the exit waits and the dispose ladder run against a scriptable fake child, driving each escalation tier deterministically. The [ACP backend suite](../subagent-acp/README.md) exercises the same ladder against real subprocesses (EOF-cooperative, EOF-ignoring, and SIGTERM-trapping children) end to end. diff --git a/packages/subagent/subagent-process/package.json b/packages/subagent/subagent-process/package.json new file mode 100644 index 0000000000..218276be44 --- /dev/null +++ b/packages/subagent/subagent-process/package.json @@ -0,0 +1,30 @@ +{ + "name": "@deepseek-ai/dsh-subagent-process", + "description": "Shared out-of-process subagent machinery: credential env scrub, spawn-failure capture, child-exit waits, the EOF-to-SIGTERM-to-SIGKILL dispose ladder, and isolated config dirs (pure lib; registers nothing)", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "cordis": "^4.0.0-rc.6" + }, + "devDependencies": { + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/subagent/subagent-process/src/index.ts b/packages/subagent/subagent-process/src/index.ts new file mode 100644 index 0000000000..b54681d3c7 --- /dev/null +++ b/packages/subagent/subagent-process/src/index.ts @@ -0,0 +1,207 @@ +/** + * Shared machinery for OUT-OF-PROCESS subagent backends — providers that spawn + * an external agent as a child process and must keep the parent deployment's + * credentials out of it, tear it down to quiescence, and isolate it from the + * host user's on-disk CLI state. The pieces: the credential env scrub + * ({@link SENSITIVE_ENV_PATTERN} / {@link buildChildEnv}), the spawn-failure + * capture ({@link spawnFailure}), the child-exit waits ({@link waitForExit} / + * {@link exitsWithin}), the stdin-EOF → SIGTERM → SIGKILL dispose ladder + * ({@link disposeChildProcess}), and the per-run isolated config dir + * ({@link createIsolatedConfigDir}). + * + * This package owns no provider and registers nothing; it is a pure library + * the out-of-process backend packages depend on (the `subagent-inprocess` + * shape, for the process boundary). Every tunable — the ladder's grace + * periods, a pinned config dir — is a PARAMETER here: defaults belong in each + * consuming plugin's Config, per the no-hardcoded-tunables rule. + * + * @module @deepseek-ai/dsh-subagent-process + */ + +import type { ChildProcess } from 'node:child_process' +import { mkdtemp, rm } from 'node:fs/promises' +import { tmpdir } from 'node:os' +import { join } from 'node:path' + +/** + * Credential-shaped ambient env vars are NOT forwarded to a child by default + * (the parent harness's own `DEEPSEEK_API_KEY`/secrets must not leak into a + * spawned process implicitly). Same pattern as the bash executor. The child + * agent needs its OWN credentials to reach a model — those are supplied + * explicitly via the `extra` layer of {@link buildChildEnv}, which lands AFTER + * the scrub, so an intended `DEEPSEEK_API_KEY` survives while an incidental + * `AWS_SECRET_ACCESS_KEY` does not. + */ +export const SENSITIVE_ENV_PATTERN = /KEY|SECRET|TOKEN/i + +/** + * The ambient env minus credential-shaped vars, plus the caller's explicit + * env. `PATH`, `HOME`, `TMPDIR`, locale, and proxy vars survive the scrub, so + * a child CLI runs normally; only {@link SENSITIVE_ENV_PATTERN}-shaped names + * are dropped. + * @param extra - explicit vars layered on top AFTER the scrub, so a + * credential-shaped name supplied deliberately still reaches the child. + * @returns the environment to spawn the child with. + */ +export function buildChildEnv(extra: Record): NodeJS.ProcessEnv { + const env: NodeJS.ProcessEnv = {} + for (const [key, value] of Object.entries(process.env)) { + if (!SENSITIVE_ENV_PATTERN.test(key)) env[key] = value + } + return { ...env, ...extra } +} + +/** + * Capture the child's spawn-level failure as a promise the run's result path + * can race. A spawn failure (e.g. `ENOENT` for a bad command) is emitted as an + * `error` EVENT, not a thrown exception — and without a listener Node treats + * it as an unhandled error and crashes the parent process. Call this in the + * SAME TICK as `spawn()`, so no window exists for the event to fire unheard. + * @param child - the just-spawned child process. + * @returns a promise that RESOLVES (never rejects) with the child's first + * `error` event; for a child that spawns cleanly it never settles. + */ +export function spawnFailure(child: ChildProcess): Promise { + return new Promise((resolve) => { + child.once('error', (err) => { resolve(err) }) + }) +} + +/** + * Resolve once the child process exits (any code/signal); immediate if it is + * already gone. + * @param child - the child process to await. + */ +export function waitForExit(child: ChildProcess): Promise { + if (child.exitCode !== null || child.signalCode !== null) return Promise.resolve() + return new Promise(resolve => child.once('exit', () => { resolve() })) +} + +/** + * Race the child's exit against a timer. + * @param child - the child process to watch. + * @param ms - the wait window in milliseconds. + * @returns `true` if the child exits within `ms`, `false` on timeout. + */ +export function exitsWithin(child: ChildProcess, ms: number): Promise { + return Promise.race([ + waitForExit(child).then(() => true), + // `.unref()` so a pending grace timer never keeps the parent's loop alive. + new Promise(resolve => setTimeout(() => { resolve(false) }, ms).unref()), + ]) +} + +/** + * The two grace periods of the dispose ladder, supplied per call by the + * consuming backend — each plugin carries them as defaulted, validated + * `disposeEofGraceMs`/`disposeGraceMs` Config fields, so teardown timing is + * deployment-tunable and this library hardcodes nothing. + */ +export interface DisposeLadderGraces { + /** + * Tier-1 window (ms): after stdin EOF, how long the child gets to quiesce + * ON ITS OWN — flush durable state, tear down its own nested subprocesses — + * before the parent escalates to `SIGTERM`. A separate (usually WIDER) + * grace than {@link DisposeLadderGraces.disposeGraceMs}: a cooperative + * child's EOF-driven teardown may itself be waiting on a signal-trapping + * grandchild plus a final flush, needing more than one signal-grace of + * headroom. + */ + disposeEofGraceMs: number + /** Tier-2 window (ms): between `SIGTERM` and the `SIGKILL` escalation. */ + disposeGraceMs: number +} + +/** + * Tear a child process down to QUIESCENCE: resolves only once the child has + * actually exited (or was already gone), never merely after requesting it. + * Three-tier escalation — + * + * 1. stdin EOF (when stdin is piped), then wait `disposeEofGraceMs`: a + * cooperative child quiesces on its own, its teardown and flushes intact; + * 2. `SIGTERM`, then wait `disposeGraceMs`; + * 3. `SIGKILL`, then await the (now-certain) exit — a child that ignores EOF + * and traps `SIGTERM` must not wedge dispose forever. + * + * @param child - the child process to tear down. + * @param graces - the two grace periods, from the consuming plugin's Config. + */ +export async function disposeChildProcess(child: ChildProcess, graces: DisposeLadderGraces): Promise { + // Already gone: nothing to reap. + if (child.exitCode !== null || child.signalCode !== null) return + // 1. Graceful: end the request stream (stdin EOF) and let the child quiesce + // on its own. Sending SIGTERM in the same tick (or too soon) would + // default-terminate a cooperative child mid-flush, orphaning its nested + // work. A child spawned without a stdin pipe skips straight to the wait. + child.stdin?.end() + if (await exitsWithin(child, graces.disposeEofGraceMs)) return + // 2. SIGTERM, escalating if the child still does not exit within the grace. + child.kill('SIGTERM') + if (await exitsWithin(child, graces.disposeGraceMs)) return + // 3. Force-kill and await the (now-certain) exit. + child.kill('SIGKILL') + await waitForExit(child) +} + +/** + * A per-run config directory handle for an external CLI child — the target of + * `CLAUDE_CONFIG_DIR` / `CODEX_HOME`-style redirection. Hand {@link path} to + * the child's environment; call {@link remove} on dispose. + */ +export interface IsolatedConfigDir { + /** The directory to point the child at. */ + path: string + /** + * Best-effort cleanup: removes the directory (recursively) iff this handle + * CREATED it — a pinned directory is never removed. Idempotent; never + * rejects (a leftover dir under the OS temp root is preferable to a failed + * dispose). + */ + remove(): Promise +} + +/** + * An isolated config dir for one child run, so the child's behavior is a + * function of deployment config alone — never of whatever `~/.claude` / + * `~/.codex`-style state happens to exist on the host machine. Two modes: + * + * - no `pinnedPath` (the default): creates a FRESH private (0700) `mkdtemp` + * dir under the OS temp root; {@link IsolatedConfigDir.remove} deletes it + * best-effort; + * - `pinnedPath` set (a deployment deliberately sharing state across runs): + * the pinned path is returned as-is — never created, never removed — the + * deployment owns that directory's lifecycle. + * + * @param prefix - the `mkdtemp` name prefix for a fresh dir (e.g. + * `dsh-subagent-codex-`); ignored when `pinnedPath` is set. + * @param pinnedPath - a deployment-pinned directory to use instead of a + * fresh one. + * @returns the directory handle: `path` for the child env, `remove()` for + * dispose. + */ +export async function createIsolatedConfigDir(prefix: string, pinnedPath?: string): Promise { + if (pinnedPath !== undefined) { + return { + path: pinnedPath, + remove(): Promise { + // A pinned dir is deployment-owned state (config the user asked to + // persist across runs); removing it here would destroy it. No-op. + return Promise.resolve() + }, + } + } + const path = await mkdtemp(join(tmpdir(), prefix)) + return { + path, + async remove(): Promise { + try { + await rm(path, { recursive: true, force: true }) + } catch { + // Best-effort by contract: swallows rm failures (EACCES/EBUSY-style — + // e.g. the dead child left an unreadable entry behind). The dir lives + // under the OS temp root, which reclaims it; failing dispose over + // cleanup would be worse than a leftover temp dir. + } + }, + } +} diff --git a/packages/subagent/subagent-process/tests/subagent-process.spec.ts b/packages/subagent/subagent-process/tests/subagent-process.spec.ts new file mode 100644 index 0000000000..c4828d8498 --- /dev/null +++ b/packages/subagent/subagent-process/tests/subagent-process.spec.ts @@ -0,0 +1,307 @@ +import { describe, expect, it } from 'vitest' +import { EventEmitter } from 'node:events' +import { existsSync } from 'node:fs' +import { chmod, mkdir, mkdtemp, rm, stat, writeFile } from 'node:fs/promises' +import { tmpdir } from 'node:os' +import { join } from 'node:path' +import type { ChildProcess } from 'node:child_process' +import { + buildChildEnv, + createIsolatedConfigDir, + disposeChildProcess, + exitsWithin, + SENSITIVE_ENV_PATTERN, + spawnFailure, + waitForExit, +} from '../src/index.ts' + +/** + * Unit tests for the shared out-of-process machinery. The env scrub and the + * isolated-config-dir helpers run against the REAL process env and REAL + * filesystem; the exit waits and the dispose ladder run against a scriptable + * fake child so each escalation tier's timing is driven deterministically + * (the ACP backend's suite exercises the same ladder against real + * subprocesses end to end). + */ + +/** What fells a scripted {@link FakeChild}. */ +type LethalTrigger = 'eof' | NodeJS.Signals + +/** Per-scenario script for a {@link FakeChild}. */ +interface FakeChildScript { + /** + * The one trigger that makes the child exit (SIGKILL always does, + * uncatchable, like a real process). Omitted: only SIGKILL fells it. + */ + diesOn?: LethalTrigger + /** Delay (ms) between the lethal trigger and the exit event. */ + delayMs?: number + /** `false` models a child spawned without a stdin pipe. */ + stdin?: boolean +} + +/** + * A scriptable stand-in for a ChildProcess carrying exactly the surface the + * helpers read: `exitCode`/`signalCode`, `stdin.end()`, `kill()`, and the + * `exit` event. + */ +class FakeChild extends EventEmitter { + exitCode: number | null = null + signalCode: NodeJS.Signals | null = null + readonly kills: NodeJS.Signals[] = [] + stdinEnded = false + readonly stdin: { end: () => void } | null + + constructor(private readonly script: FakeChildScript = {}) { + super() + this.stdin = script.stdin === false + ? null + : { end: () => { this.stdinEnded = true; this.maybeDie('eof') } } + } + + kill(signal: NodeJS.Signals): boolean { + this.kills.push(signal) + this.maybeDie(signal) + return true + } + + private maybeDie(trigger: LethalTrigger): void { + // SIGKILL is uncatchable — it always fells the child; any other trigger + // only when the scenario scripts it as the lethal one. + if (trigger !== 'SIGKILL' && this.script.diesOn !== trigger) return + setTimeout(() => { + if (trigger === 'eof') this.exitCode = 0 + else this.signalCode = trigger + this.emit('exit', this.exitCode, this.signalCode) + }, this.script.delayMs ?? 0) + } +} + +/** The helpers take a real ChildProcess; the fake carries the read surface. */ +function asChild(fake: FakeChild): ChildProcess { + return fake as unknown as ChildProcess +} + +describe('buildChildEnv / SENSITIVE_ENV_PATTERN', () => { + it('drops credential-shaped ambient vars (KEY/SECRET/TOKEN, case-insensitive)', () => { + process.env.DSH_PROC_TEST_API_KEY = 'leak' + process.env.dsh_proc_test_secret = 'leak' + process.env.DSH_PROC_TEST_TOKEN = 'leak' + try { + const env = buildChildEnv({}) + expect(env.DSH_PROC_TEST_API_KEY).toBeUndefined() + expect(env.dsh_proc_test_secret).toBeUndefined() + expect(env.DSH_PROC_TEST_TOKEN).toBeUndefined() + } finally { + delete process.env.DSH_PROC_TEST_API_KEY + delete process.env.dsh_proc_test_secret + delete process.env.DSH_PROC_TEST_TOKEN + } + }) + + it('forwards normal ambient vars', () => { + expect(SENSITIVE_ENV_PATTERN.test('PATH')).toBe(false) + expect(buildChildEnv({}).PATH).toBe(process.env.PATH) + }) + + it('layers extras AFTER the scrub, so a deliberate credential-shaped name survives', () => { + process.env.DSH_PROC_TEST_EXTRA_TOKEN = 'ambient-leak' + try { + const env = buildChildEnv({ DSH_PROC_TEST_EXTRA_TOKEN: 'explicit' }) + // The ambient value was scrubbed; ONLY the explicit opt-in reaches the child. + expect(env.DSH_PROC_TEST_EXTRA_TOKEN).toBe('explicit') + } finally { + delete process.env.DSH_PROC_TEST_EXTRA_TOKEN + } + }) + + it('an extra overrides the ambient value of a non-credential var', () => { + process.env.DSH_PROC_TEST_PLAIN = 'ambient' + try { + expect(buildChildEnv({ DSH_PROC_TEST_PLAIN: 'override' }).DSH_PROC_TEST_PLAIN).toBe('override') + } finally { + delete process.env.DSH_PROC_TEST_PLAIN + } + }) +}) + +describe('spawnFailure', () => { + it('resolves (never rejects) with the first error event', async () => { + const fake = new FakeChild() + const failure = spawnFailure(asChild(fake)) + const err = new Error('spawn ENOENT') + fake.emit('error', err) + await expect(failure).resolves.toBe(err) + }) + + it('never settles for a child that spawns cleanly and exits', async () => { + const fake = new FakeChild({ diesOn: 'SIGTERM' }) + const failure = spawnFailure(asChild(fake)) + fake.kill('SIGTERM') + await waitForExit(asChild(fake)) + // A clean lifecycle emits `exit`, never `error` — the capture stays + // pending forever, so a race against it is decided by the other arms. + const settled = await Promise.race([ + failure.then(() => 'settled'), + new Promise(resolve => setTimeout(() => { resolve('pending') }, 30)), + ]) + expect(settled).toBe('pending') + }) +}) + +describe('waitForExit / exitsWithin', () => { + it('resolves immediately for a child that already exited by code', async () => { + const fake = new FakeChild() + fake.exitCode = 0 + await expect(waitForExit(asChild(fake))).resolves.toBeUndefined() + }) + + it('resolves immediately for a child that already died by signal', async () => { + const fake = new FakeChild() + fake.signalCode = 'SIGTERM' + await expect(waitForExit(asChild(fake))).resolves.toBeUndefined() + }) + + it('resolves on the exit event of a live child', async () => { + const fake = new FakeChild({ diesOn: 'SIGTERM', delayMs: 5 }) + const exited = waitForExit(asChild(fake)) + fake.kill('SIGTERM') + await expect(exited).resolves.toBeUndefined() + expect(fake.signalCode).toBe('SIGTERM') + }) + + it('exitsWithin resolves true when the child exits inside the window', async () => { + const fake = new FakeChild({ diesOn: 'SIGTERM', delayMs: 5 }) + fake.kill('SIGTERM') + await expect(exitsWithin(asChild(fake), 1000)).resolves.toBe(true) + }) + + it('exitsWithin resolves false on timeout for a child that never exits', async () => { + const fake = new FakeChild() // nothing short of SIGKILL fells it; no signal sent + await expect(exitsWithin(asChild(fake), 20)).resolves.toBe(false) + }) +}) + +describe('disposeChildProcess', () => { + it('returns immediately for an already-exited child (no EOF, no signals)', async () => { + const fake = new FakeChild() + fake.exitCode = 0 + await disposeChildProcess(asChild(fake), { disposeEofGraceMs: 1000, disposeGraceMs: 1000 }) + expect(fake.stdinEnded).toBe(false) + expect(fake.kills).toEqual([]) + }) + + it('returns immediately for a child already dead by signal', async () => { + const fake = new FakeChild() + fake.signalCode = 'SIGKILL' + await disposeChildProcess(asChild(fake), { disposeEofGraceMs: 1000, disposeGraceMs: 1000 }) + expect(fake.stdinEnded).toBe(false) + expect(fake.kills).toEqual([]) + }) + + it('tier 1: a cooperative child quiesces on stdin EOF — no signal is ever sent', async () => { + const fake = new FakeChild({ diesOn: 'eof', delayMs: 5 }) + await disposeChildProcess(asChild(fake), { disposeEofGraceMs: 1000, disposeGraceMs: 1000 }) + expect(fake.stdinEnded).toBe(true) + expect(fake.kills).toEqual([]) + expect(fake.exitCode).toBe(0) + }) + + it('tier 2: a child that ignores EOF but honors SIGTERM dies on the middle rung', async () => { + const fake = new FakeChild({ diesOn: 'SIGTERM', delayMs: 5 }) + await disposeChildProcess(asChild(fake), { disposeEofGraceMs: 20, disposeGraceMs: 1000 }) + expect(fake.stdinEnded).toBe(true) + expect(fake.kills).toEqual(['SIGTERM']) + expect(fake.signalCode).toBe('SIGTERM') + }) + + it('tier 3: a SIGTERM-trapping child is SIGKILLed, and dispose resolves only after the exit', async () => { + const fake = new FakeChild({ delayMs: 5 }) // only SIGKILL fells it + await disposeChildProcess(asChild(fake), { disposeEofGraceMs: 20, disposeGraceMs: 20 }) + expect(fake.kills).toEqual(['SIGTERM', 'SIGKILL']) + // Quiescence, not a request: at resolution the child has ACTUALLY exited + // (the exit event landed, despite the scripted post-SIGKILL delay). + expect(fake.signalCode).toBe('SIGKILL') + }) + + it('walks the ladder for a child spawned without a stdin pipe', async () => { + const fake = new FakeChild({ stdin: false, diesOn: 'SIGTERM', delayMs: 5 }) + await disposeChildProcess(asChild(fake), { disposeEofGraceMs: 20, disposeGraceMs: 1000 }) + expect(fake.kills).toEqual(['SIGTERM']) + }) +}) + +describe('createIsolatedConfigDir', () => { + it('creates a fresh private mkdtemp dir under the OS temp root', async () => { + const dir = await createIsolatedConfigDir('dsh-subagent-process-test-') + try { + expect(dir.path.startsWith(join(tmpdir(), 'dsh-subagent-process-test-'))).toBe(true) + const st = await stat(dir.path) + expect(st.isDirectory()).toBe(true) + // Private (0700) per the defensive-patterns temp-dir rule. + expect(st.mode & 0o777).toBe(0o700) + } finally { + await dir.remove() + } + }) + + it('creates a distinct dir per call (per-run isolation)', async () => { + const a = await createIsolatedConfigDir('dsh-subagent-process-test-') + const b = await createIsolatedConfigDir('dsh-subagent-process-test-') + try { + expect(a.path).not.toBe(b.path) + } finally { + await a.remove() + await b.remove() + } + }) + + it('remove() deletes a fresh dir recursively and is idempotent', async () => { + const dir = await createIsolatedConfigDir('dsh-subagent-process-test-') + await writeFile(join(dir.path, 'settings.json'), '{}') + await dir.remove() + expect(existsSync(dir.path)).toBe(false) + // Second remove: nothing left to delete, still resolves. + await expect(dir.remove()).resolves.toBeUndefined() + }) + + it('returns a pinned dir verbatim and NEVER removes it', async () => { + const pinned = await mkdtemp(join(tmpdir(), 'dsh-subagent-process-pinned-')) + try { + const dir = await createIsolatedConfigDir('ignored-prefix-', pinned) + expect(dir.path).toBe(pinned) + await dir.remove() + // The deployment owns a pinned dir's lifecycle — remove() must not touch it. + expect(existsSync(pinned)).toBe(true) + } finally { + await rm(pinned, { recursive: true, force: true }) + } + }) + + it('does not create a missing pinned path (the deployment owns its lifecycle)', async () => { + const missing = join(tmpdir(), `dsh-subagent-process-missing-${process.pid}`) + const dir = await createIsolatedConfigDir('ignored-prefix-', missing) + expect(dir.path).toBe(missing) + expect(existsSync(missing)).toBe(false) + await dir.remove() + expect(existsSync(missing)).toBe(false) + }) + + it('remove() is best-effort: an rm failure resolves instead of rejecting', async () => { + const dir = await createIsolatedConfigDir('dsh-subagent-process-locked-') + const locked = join(dir.path, 'locked') + await mkdir(locked) + await writeFile(join(locked, 'entry'), 'x') + // An unreadable, unwritable non-empty subdir makes recursive rm fail + // (EACCES on readdir/unlink) for a non-root user. + await chmod(locked, 0o000) + try { + await expect(dir.remove()).resolves.toBeUndefined() + // rm really did fail — the locked subtree is still there. + expect(existsSync(locked)).toBe(true) + } finally { + await chmod(locked, 0o700) + await rm(dir.path, { recursive: true, force: true }) + } + }) +}) diff --git a/packages/subagent/subagent-process/tsconfig.json b/packages/subagent/subagent-process/tsconfig.json new file mode 100644 index 0000000000..749cb0208e --- /dev/null +++ b/packages/subagent/subagent-process/tsconfig.json @@ -0,0 +1,11 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [] +} diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 32ffa0d389..359b68b6d5 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -594,6 +594,9 @@ importers: '@deepseek-ai/dsh-subagent': specifier: workspace:^ version: link:../subagent + '@deepseek-ai/dsh-subagent-process': + specifier: workspace:^ + version: link:../subagent-process cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -671,6 +674,12 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/subagent/subagent-process: + devDependencies: + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/subagent/subagent-spawn: dependencies: schemastery: diff --git a/tsconfig.build.json b/tsconfig.build.json index 3d99ad4e28..21fa726927 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -50,6 +50,7 @@ { "path": "./packages/support/subagent-mock" }, { "path": "./packages/subagent/tool-subagent" }, { "path": "./packages/subagent/subagent-inprocess" }, + { "path": "./packages/subagent/subagent-process" }, { "path": "./packages/subagent/subagent-spawn" }, { "path": "./packages/subagent/subagent-fork" }, { "path": "./packages/subagent/subagent-acp" }, diff --git a/tsconfig.json b/tsconfig.json index 2091283c93..c4127b2b5d 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -61,6 +61,7 @@ { "path": "./packages/support/subagent-mock" }, { "path": "./packages/subagent/tool-subagent" }, { "path": "./packages/subagent/subagent-inprocess" }, + { "path": "./packages/subagent/subagent-process" }, { "path": "./packages/subagent/subagent-spawn" }, { "path": "./packages/subagent/subagent-fork" }, { "path": "./packages/subagent/subagent-acp" }, From e6bd6cc9beb7a2a73907bebf092cffefee6840de Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Wed, 8 Jul 2026 19:32:42 +0800 Subject: [PATCH 074/232] fix(compact): count the logged session prefix toward token pressure MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ds-review-bot critical: compactIfNeeded estimated pressure from the derived history + system prompt only, but every loop-built request also carries EpochHeader.messagePrefix in front of the history — a deployment at the window edge would under-estimate by exactly the prefix, skip compaction, and ship an over-window request. BasicCompactService now gates on estimatePressure(): the session prefix read from the log's folded header + the derived history + the system prompt. The fold is exact from the instance's second request on (and from a resumed instance's first — the previous instance logged its prefix); it is absent only before a fresh session's first request, where the history is a single prompt and compaction is moot. Compaction itself still shrinks history only — a prefix that alone approaches the window is a configuration error no compactor fixes, same as the documented single-unit-overflow stance. --- packages/compact/compact-basic/README.md | 2 +- packages/compact/compact-basic/src/index.ts | 37 ++++++++++++++++--- .../compact-basic/tests/compact-basic.spec.ts | 23 ++++++++++++ 3 files changed, 55 insertions(+), 7 deletions(-) diff --git a/packages/compact/compact-basic/README.md b/packages/compact/compact-basic/README.md index f4400911c6..86ba3c32a3 100644 --- a/packages/compact/compact-basic/README.md +++ b/packages/compact/compact-basic/README.md @@ -8,7 +8,7 @@ This is the implementation tier of the compaction capability — see the [interf The abstract contract states only WHAT compaction does; this backend owns every HOW decision: -- **Token estimation** — `estimateContentTokens()`: chars divided by the `charsPerToken` config (default 4) with per-block structural overhead (`text`/`reasoning` = `ceil(len/charsPerToken) + 4`, `tool-call` from name + arguments, `tool-result` recursive, unknown blocks via JSON length). +- **Token estimation** — `estimateContentTokens()`: chars divided by the `charsPerToken` config (default 4) with per-block structural overhead (`text`/`reasoning` = `ceil(len/charsPerToken) + 4`, `tool-call` from name + arguments, `tool-result` recursive, unknown blocks via JSON length). The pressure gate estimates the NEXT request via `estimatePressure()`: the logged session prefix (`EpochHeader.messagePrefix` from the header fold — the `agent/session-prefix` product rides every request in front of the history, so omitting it would under-estimate pressure by exactly the prefix) + the derived history + the system prompt. - **Retention policy** — `compactIfNeeded()` walks the surface nodes tail→head summing per-node token estimates, and retains the smallest tail-run of WHOLE units (a closed step, or a single no-step node such as a pre-step `user/message` or inter-step `steering/message`) whose total reaches `retainTokens`; everything older is compacted. Retention is **turn-agnostic** — turn boundaries play no role, so a single runaway turn that alone exceeds the window compacts its OWN early closed steps rather than being retained verbatim (the failure mode that motivated dropping turn-protection: a tool-heavy turn must stay compactable or the harness dies exactly when compaction is needed). The only structural guard is **tool-pairing balance**: the compacted region's edges are balanced cuts on the surface (no unanswered tool-call crosses either edge), so it never splits a step's `assistant/message` tool-calls from their `tool/result`s. When the only compactable content left is an un-splittable open tail step, it declines (returns `null`) and retries once an older step closes. **Single-unit overflow is out of scope, by design**: if one retained unit (a single closed step, or a large pasted `user/message`) ALONE exceeds the budget, compaction cannot help and the call may go out over-budget — bounding an individual unit's size is a separate concern. `compactRegion()` enforces tool-pairing balance strictly, throwing on a boundary that would split a step. `dsh-session` exports `isToolPairingBalanced` for the check. - **Dynamic convergence** — no static summary-length config pretends to bound what the model will write. If framing/estimator/system overhead leaves the compacted surface above threshold, `compactIfNeeded()` re-compacts the head checkpoint up to `compactionRetries` extra times; if it still cannot get below threshold, it throws. A summary whose estimated stored size is not smaller than the shadowed content fails closed before it mutates the surface. - **Summarization** — `summarize()`: a `GenerateOptions` request assembled via `BlockAssembler` with a fixed system prompt that asks for a structured checkpoint (Primary Request and Intent · Key Technical Concepts · Files and Code · Errors and Fixes · Pending Tasks · Current Work · Next Step · Critical Context), every section mandatory, exact paths/commands/identifiers preserved. The request is a direct one-shot `ctx.llm.stream()` call — NOT a loop step, so it does not run `agent/request` (that seam shapes the loop's conversation requests); the model comes from `summarizationModel` falling back to the agent's own, and per-call routing happens at `llm/stream` like any other direct call. `maxTokens` is the provider-side generation cap; only text blocks from the model's reply are kept before the checkpoint is stored (reasoning is dropped so private chain-of-thought never leaks into the durable summary, and a stray `tool-call` is dropped so the synthesized `user/message` summary cannot land an orphaned call with no matching `tool-result`). The compacted region is flattened to a plain-text transcript first: text and reasoning contribute their text, and every non-text block (tool-call, tool-result, plugin-added types) contributes a type-tagged placeholder (`[tool-call: name(args)]`, `[tool-result: …]`, …) so the summarizer is told what existed rather than silently dropping it. diff --git a/packages/compact/compact-basic/src/index.ts b/packages/compact/compact-basic/src/index.ts index 03f7c9ab4b..87765b574e 100644 --- a/packages/compact/compact-basic/src/index.ts +++ b/packages/compact/compact-basic/src/index.ts @@ -187,7 +187,7 @@ export class BasicCompactService extends CompactService { try { const result = await this.compactIfNeeded(agent, fullSystemPrompt, signal) if (result) { - const after = this.estimateTokens(agent.session.deriveMessages(), fullSystemPrompt) + const after = this.estimatePressure(agent.session, fullSystemPrompt) ctx.logger.info( `compaction: shadowed ${result.shadowedSeqs.length} surface nodes ` + `(seqs ${result.shadowedRange.start}-${result.shadowedRange.end}, ` + @@ -359,11 +359,19 @@ export class BasicCompactService extends CompactService { // ---- Core API (implements the abstract contract) ---- /** - * The sole token-pressure gate: estimate the current surface-derived history, - * and if it exceeds the threshold (`contextWindow * thresholdRatio`), compact + * The sole token-pressure gate: estimate the NEXT request's pressure — the + * logged session prefix + the surface-derived history + the system prompt + * ({@link estimatePressure}) — and if it exceeds the threshold + * (`contextWindow * thresholdRatio`), compact * the oldest surface nodes outside the `retainTokens` budget. The auto- * compaction listener delegates here rather than pre-checking, so this is the - * only place the decision lives. + * only place the decision lives. The prefix counts because every request + * carries it in front of the history (`EpochHeader.messagePrefix`) even + * though it is not derived history — omitting it would under-estimate by + * exactly the prefix and let a deployment at the window edge skip + * compaction, then ship an over-window request. Compaction itself can only + * shrink HISTORY: a prefix that alone approaches the window is a + * configuration error no compactor fixes. * * Retention is a UNIFORM tail→head walk over the whole surface — turn * boundaries play NO role. Walking node-by-node from the tail and summing @@ -393,7 +401,7 @@ export class BasicCompactService extends CompactService { const threshold = Math.floor(this.config.contextWindow * this.config.thresholdRatio) let result: CompactionResult | null = null for (let attempt = 0; attempt <= this.config.compactionRetries; attempt++) { - const totalTokens = this.estimateTokens(session.deriveMessages(), fullSystemPrompt) + const totalTokens = this.estimatePressure(session, fullSystemPrompt) if (totalTokens < threshold) return result const range = this._compactableRange(session) @@ -407,7 +415,7 @@ export class BasicCompactService extends CompactService { result = await this.compactRegion(session, range.start, range.end, agent, signal) } - const totalTokens = this.estimateTokens(session.deriveMessages(), fullSystemPrompt) + const totalTokens = this.estimatePressure(session, fullSystemPrompt) if (totalTokens < threshold) return result throw new Error( @@ -416,6 +424,23 @@ export class BasicCompactService extends CompactService { ) } + /** + * Estimated token pressure of the NEXT request: the logged session prefix + * (`EpochHeader.messagePrefix` from the header fold — request-only messages + * the loop sends in front of the derived history), the derived history, and + * the system prompt. The fold is exact from the loop instance's second + * request on (and from a resumed instance's first — the previous instance + * logged its prefix); it is absent only before a fresh session's first + * request, where the history is a single prompt and compaction is moot. + * @param session - the session whose next request is being estimated. + * @param fullSystemPrompt - the assembled system prompt (counts toward pressure). + * @returns the estimated token total the next request will carry. + */ + estimatePressure(session: Session, fullSystemPrompt: string): number { + const sessionPrefix = session.requestHeader()?.messagePrefix ?? [] + return this.estimateTokens([...sessionPrefix, ...session.deriveMessages()], fullSystemPrompt) + } + override async compactRegion( session: Session, start: number, diff --git a/packages/compact/compact-basic/tests/compact-basic.spec.ts b/packages/compact/compact-basic/tests/compact-basic.spec.ts index 990d60190a..b58e50f4c3 100644 --- a/packages/compact/compact-basic/tests/compact-basic.spec.ts +++ b/packages/compact/compact-basic/tests/compact-basic.spec.ts @@ -557,6 +557,29 @@ describe('BasicCompactService.compactIfNeeded', () => { expect(result!.shadowedSeqs.length).toBeGreaterThan(0) }) + it('counts the logged session prefix toward pressure (every request carries it in front of the history)', async () => { + const svc = createTestService({ contextWindow: 200, thresholdRatio: 0.5, retainTokens: 10 }) + const session = multiTurnSession(3, 1) // 6 derived messages ≈ 84 estimated tokens — under the 100 threshold alone + expect(await compactIfNeeded(svc, session, '', 'm', SIGNAL)).toBeNull() + + // The loop records the composed agent/session-prefix product on the + // request header; it rides every request, so pressure must include it. + session.append('request/header', { + header: { + config: { model: 'm' }, + messagePrefix: [ + { role: 'user', content: [{ type: 'text', text: `opener one.${LONG_FIXTURE_TEXT}` }] }, + { role: 'user', content: [{ type: 'text', text: `opener two.${LONG_FIXTURE_TEXT}` }] }, + ], + }, + reason: 'initial', + }) + const result = await compactIfNeeded(svc, session, '', 'm', SIGNAL) + expect(result).not.toBeNull() + // The prefix itself is NOT history: compaction shadowed surface nodes only. + expect(session.requestHeader()?.messagePrefix).toHaveLength(2) + }) + it('returns the first compaction result when a zero-retry pass converges after the loop', async () => { // With compactionRetries=0 there is no next-loop threshold check after the // first mutation, so the success path is the post-loop `return result`. From 765052a7d1a60d884558f4e6d6840b9b10b6a6d4 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Wed, 8 Jul 2026 20:30:10 +0800 Subject: [PATCH 075/232] fix(agent-loop): compose the session prefix before pre-step; hand it to the pressure gate MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ds-review-bot critical (follow-up): on the first step of a resumed or seeded/forked instance, auto-compaction ran before runStep composed this instance's prefix, so the gate read the PREVIOUS instance's logged prefix from the header fold — a contributor that grew across resume/fork (skills added, AGENTS.md grown: exactly the environment-dependent case) could under-gate and ship an over-window first request. The loop now composes agent/session-prefix before the instance's first agent/pre-step (still once per instance; runStep just reads the cache), and agent/pre-step carries the composed prefix to its listeners. CompactService.compactIfNeeded gains the sessionPrefix parameter; BasicCompactService.estimatePressure gates on the handed value — the header-fold read is gone, so the estimate is exact at every step including a resumed/forked instance's first. Composition moving before the boundary snapshot also means a composing listener's session append now joins the CURRENT request (documented on the seam). New coverage: composition precedes pre-step and the seam receives the composed prefix; cancel and disposal landing inside the composition window drop the step cleanly; the compact gate test hands the prefix directly. --- docs/architecture.md | 3 +- docs/cordis-catalog/events.md | 22 +++--- docs/cordis-catalog/services.md | 6 +- docs/event-producer-consumer.md | 14 ++-- .../2026-07-05-reconstructable-requests.md | 2 +- packages/compact/compact-basic/README.md | 2 +- packages/compact/compact-basic/src/index.ts | 34 +++++---- .../compact-basic/tests/compact-basic.spec.ts | 38 +++++----- packages/compact/compact/src/index.ts | 24 ++++-- .../compact/compact/tests/compact.spec.ts | 6 +- packages/core/agent-loop/README.md | 7 +- packages/core/agent-loop/src/loop.ts | 75 ++++++++++++------- packages/core/agent-loop/tests/cancel.spec.ts | 63 ++++++++++++++++ .../agent-loop/tests/interception.spec.ts | 27 +++++++ packages/core/agent/README.md | 4 +- packages/core/agent/src/types.ts | 24 ++++-- 16 files changed, 244 insertions(+), 107 deletions(-) diff --git a/docs/architecture.md b/docs/architecture.md index bfec8b1d84..908bb63664 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -70,10 +70,11 @@ forever: STEP loop: drain steering assemble system prompt and tool schemas + agent/session-prefix (first step) agent/pre-step 'step/start' snapshot the derived messages (the reconstruction boundary) - agent/request (config only) -> agent/session-prefix (first request) -> log request/header -> llm/stream (frozen) + agent/request (config only) -> log request/header -> llm/stream (frozen) 'assistant/chunk' agent/step-result 'assistant/message' diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index e9b213c2fa..8b820168b3 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -47,21 +47,21 @@ A step or turn errored. The loop reports a failure here (plus the logger) even w Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:460`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:472`](../../packages/core/agent/src/types.ts) ### `agent/pre-step` — serial Awaited pre-step surface-mutation checkpoint, fired once per step AFTER `turn/start` (and after the prior step closed) but BEFORE this step's `step/start` — so anything a listener appends lands OUTSIDE the step, between `turn/start`/`step/end` and the upcoming `step/start`. `step` is the number of the step about to start. The loop awaits `ctx.serial('agent/pre-step', …)` after assembling the system prompt, then opens the step and derives the request history ONCE from whatever the surface now holds. This is where compaction belongs: it mutates the session surface in place (shadowing an older range with a summary node) with its log-only `compact/*` records cleanly outside any step, and the single subsequent derive reflects the mutation — so there is no double-derive and no listener can see (or be expected to act on) an assembled `messages` array that does not exist yet. -Serial (awaited in registration order), not a waterfall: a listener mutates the surface as a side effect; there is nothing to transform, but the loop must wait for the mutation to complete before opening the step and deriving. Cordis `serial` bails early if a listener returns a bail value; this event is typed and documented as `void`, so listeners must not return a semantic veto value. `fullSystemPrompt` is the assembled prompt a listener needs to measure pressure (the system prompt counts toward the budget). `signal` cancels any in-flight work a listener starts (e.g. a summarization model call). +Serial (awaited in registration order), not a waterfall: a listener mutates the surface as a side effect; there is nothing to transform, but the loop must wait for the mutation to complete before opening the step and deriving. Cordis `serial` bails early if a listener returns a bail value; this event is typed and documented as `void`, so listeners must not return a semantic veto value. `fullSystemPrompt` is the assembled prompt a listener needs to measure pressure (the system prompt counts toward the budget), and `sessionPrefix` is the instance's composed agent/session-prefix product for the same reason — every request carries it in front of the derived history, and it is composed BEFORE this seam fires precisely so a pressure gate counts the prefix the request will actually send (never a stale logged one). `signal` cancels any in-flight work a listener starts (e.g. a summarization model call). ```ts cordis-catalog -'agent/pre-step'(agent: Agent, turn: number, step: number, fullSystemPrompt: string, signal: AbortSignal): Promise | void +'agent/pre-step'(agent: Agent, turn: number, step: number, fullSystemPrompt: string, sessionPrefix: readonly Message[], signal: AbortSignal): Promise | void ``` -Types: [Agent](../core-data-structures/core.md) +Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:350`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:357`](../../packages/core/agent/src/types.ts) ### `agent/prompt-submit` — waterfall @@ -73,7 +73,7 @@ Waterfall: decide what happens to ONE drained queued message before it becomes a Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:363`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:370`](../../packages/core/agent/src/types.ts) ### `agent/queued` — emit @@ -97,11 +97,11 @@ Waterfall: shape the step's call configuration — model switching, sampling ove Types: [Agent](../core-data-structures/core.md) · [LlmCallConfig](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:387`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:394`](../../packages/core/agent/src/types.ts) ### `agent/session-prefix` — waterfall -Waterfall: compose the SESSION PREFIX — request-only messages placed in front of the ENTIRE derived history (directly after the provider's system slot) on every request this loop instance sends. Fired ONCE per loop instance, lazily on its first request-building step; the composed result is deep-frozen, recorded as `EpochHeader.messagePrefix` on the instance's anchoring `'initial'`/`'resume'` header snapshot, and reused verbatim for every subsequent request — never recomputed mid-session, so the provider prefix cache holds by construction (a process restart or `ctx.agents.resume()` is a new instance: it recomposes, and any drift lands attributably on the `'resume'` snapshot). +Waterfall: compose the SESSION PREFIX — request-only messages placed in front of the ENTIRE derived history (directly after the provider's system slot) on every request this loop instance sends. Fired ONCE per loop instance, lazily before its first step's agent/pre-step seam — BEFORE the pre-step so a token-pressure gate (compaction) counts the prefix this instance will actually send, never a previous instance's logged one. The composed result is deep-frozen, recorded as `EpochHeader.messagePrefix` on the instance's anchoring `'initial'`/`'resume'` header snapshot, and reused verbatim for every subsequent request — never recomputed mid-session, so the provider prefix cache holds by construction (a process restart or `ctx.agents.resume()` is a new instance: it recomposes, and any drift lands attributably on the `'resume'` snapshot). Composition runs outside the step, before the boundary snapshot: a composing listener's session append joins the CURRENT request's derived history. This is the home for session-stable openers the model must always see but that must NOT become durable history — a skills catalog, an AGENTS.md digest, a workspace baseline: `Session.deriveMessages()` never returns the prefix, and the header events are its only durable record, so the request stays reconstructable from the log. Content that CHANGES mid-session belongs in the append-only history channels instead — `agent.inject()`, a `tools/post-execute` decision's `additionalContext`, prompt-submit `additionalContext` — each a durable `context/message` paid once and prefix-cached thereafter. @@ -113,7 +113,7 @@ The seed is a frozen empty list; a contributing listener returns a NEW array — Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:425`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:437`](../../packages/core/agent/src/types.ts) ### `agent/session-start` — emit @@ -149,7 +149,7 @@ Waterfall: post-process the assembled assistant Message before tool dispatch (va Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:435`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:447`](../../packages/core/agent/src/types.ts) ### `agent/turn-continuation` — waterfall @@ -161,7 +161,7 @@ Waterfall: override the turn-continuation decision via a typed ContinuationDecis Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:448`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:460`](../../packages/core/agent/src/types.ts) ## `fs/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 26126c4481..5faf97edcd 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -98,11 +98,13 @@ Implementations MUST honor: - **Blocking**: no compaction begins while another is in progress for the same session. The recommended mechanism is the log-recorded lock — append `compact/start` before the slow work and `compact/end` after (even on failure) — so the lock is visible to replay and crash recovery. ```ts cordis-catalog -abstract compactIfNeeded( agent: CompactAgentContext, fullSystemPrompt: string, signal: AbortSignal, ): Promise +abstract compactIfNeeded( agent: CompactAgentContext, fullSystemPrompt: string, sessionPrefix: readonly Message[], signal: AbortSignal, ): Promise abstract compactRegion( session: Session, start: number, end: number, agent: CompactAgentContext, signal?: AbortSignal, ): Promise ``` -Source: [`packages/compact/compact/src/index.ts:63`](../../packages/compact/compact/src/index.ts) +Types: [Message](../core-data-structures/core.md) + +Source: [`packages/compact/compact/src/index.ts:64`](../../packages/compact/compact/src/index.ts) ## `ctx.fs` — `FileSystem` (abstract seam) diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 534a0af269..19a2d4b1c0 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -9,16 +9,16 @@ This matrix shows which packages dispatch each harness-owned event and which pac | --- | --- | --- | --- | --- | | `agent/created` | `emit` | [`packages/core/agent/src/types.ts:265`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:272`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:460`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:350`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | -| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:363`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:472`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:357`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | +| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:370`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:290`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:387`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:425`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:394`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:437`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | | `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:305`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `agent/status` | `emit` | [`packages/core/agent/src/types.ts:281`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:435`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:448`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:447`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:460`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | diff --git a/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md b/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md index 20bd1e3005..73967c14b6 100644 --- a/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md +++ b/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md @@ -22,7 +22,7 @@ Prefix-cache stability is corollary #1, not the headline: an append-only log pro **The header.** The request's non-history half — `EpochHeader`: call config (`LlmCallConfig`: model + sampling scalars), rendered system prompt, assembled tool schemas, and the session prefix (`messagePrefix`, below) — is logged session state, in canonical form (empty system/tools/prefix ≡ absent). Two log-only, turn-enclosed events in dsh-session carry it: `request/header`, a full snapshot with reason `'initial' | 'resume' | 'fallback'`, and `request/header-delta`, an amendment (`SystemDelta`: a common-prefix/suffix line trim; `ToolsDelta`: name-keyed added/removed/changed; `config`: replaced whole; `messagePrefix`: replaced whole, an empty array encoding the transition to absence — an arm the loop never exercises in practice, kept for codec totality). The pure trio `foldRequestHeader` / `diffHeader` / `applyHeaderDelta` reconstructs; the live session tracks the fold with the same lazy cursor as the message cache. Snapshots anchor the fold where a fold needs anchors — conversation birth and process boundaries — and each loop instance appends one on its first request (`'initial'` when the log has none, `'resume'` otherwise, even when nothing changed: the boundary itself is a recorded fact, and cross-restart drift becomes attributable while an unchanged header resumes byte-identical). Deltas are an encoding optimization with a safety valve, never a correctness dependency: the writer verifies `applyHeaderDelta(prev, delta)` reproduces the new header exactly and records a `'fallback'` snapshot when the encoding cannot express a change (a pure tool reordering), so a well-formed log always folds. -**The loop, transmission-stateless.** Per step: render assembly (every step — value comparison needs no change-signal discipline, and a section that varies per step surfaces as a *logged* header event per step instead of a silent bust) → `agent/pre-step` (compaction's surface mutations land before derivation) → **messages snapshot, then `step/start` appended as the next operation in the same synchronous frame** → seed the call config (first request of the instance: from `AgentOptions`, so explicit options always beat the logged baseline — fork model-overrides and resume reconfiguration stay correct; afterwards: from the folded header) → the `agent/request` waterfall, re-typed `(agent, turn, step, config: LlmCallConfig, next) → LlmCallConfig` — a frozen seed and a returned replacement are ALL a listener shapes; durable content flows through the log channels (`inject()`, steering, prompt-submit `additionalContext`, sections via `system-prompt/assemble`) — → on the instance's FIRST request only, the `agent/session-prefix` waterfall — request-ONLY messages fronting the entire derived history (a frozen empty seed, contributions returned as an extension of `next()`; the home for session-stable openers that must NOT become history — a skills catalog, an AGENTS.md digest), deep-frozen and cached on the instance so reuse is structural and the prefix cannot drift mid-session — → the header event the request owes the log, carrying the prefix as `messagePrefix` (no session event carries it, so the header is its only durable record; resume = a new instance = a recompose, anchored by its `'resume'` snapshot) → build `GenerateOptions` from `messagePrefix + snapshot` + header, deep-freeze (`deepFreeze` exempts the `AbortSignal`, the one live control channel — freezing one breaks `AbortController.abort()`), dispatch. The loop's per-instance bookkeeping is one boolean plus the cached prefix: whether this instance has logged its anchoring snapshot, and what it composed. +**The loop, transmission-stateless.** Per step: render assembly (every step — value comparison needs no change-signal discipline, and a section that varies per step surfaces as a *logged* header event per step instead of a silent bust) → on the instance's FIRST step only, the `agent/session-prefix` waterfall — request-ONLY messages fronting the entire derived history (a frozen empty seed, contributions returned as an extension of `next()`; the home for session-stable openers that must NOT become history — a skills catalog, an AGENTS.md digest), deep-frozen and cached on the instance so reuse is structural and the prefix cannot drift mid-session — → `agent/pre-step`, carrying the composed prefix (compaction's surface mutations land before derivation, and its pressure gate counts the prefix this instance will actually send — never a previous instance's logged one, which could under-gate a resumed/forked instance whose contributor grew) → **messages snapshot, then `step/start` appended as the next operation in the same synchronous frame** → seed the call config (first request of the instance: from `AgentOptions`, so explicit options always beat the logged baseline — fork model-overrides and resume reconfiguration stay correct; afterwards: from the folded header) → the `agent/request` waterfall, re-typed `(agent, turn, step, config: LlmCallConfig, next) → LlmCallConfig` — a frozen seed and a returned replacement are ALL a listener shapes; durable content flows through the log channels (`inject()`, steering, prompt-submit `additionalContext`, sections via `system-prompt/assemble`) — → the header event the request owes the log, carrying the prefix as `messagePrefix` (no session event carries it, so the header is its only durable record; resume = a new instance = a recompose, anchored by its `'resume'` snapshot) → build `GenerateOptions` from `messagePrefix + snapshot` + header, deep-freeze (`deepFreeze` exempts the `AbortSignal`, the one live control channel — freezing one breaks `AbortController.abort()`), dispatch. The loop's per-instance bookkeeping is one boolean plus the cached prefix: whether this instance has logged its anchoring snapshot, and what it composed. **The reconstruction boundary is `step/start`, unconditionally.** A step's messages are the derivation over `events[0..stepStartSeq)`. Because the snapshot precedes the `step/start` append in the same synchronous frame, nothing can enter this request past the boundary: an `agent.inject()` from an `agent/request` listener (or any concurrent task, or a `session/event` listener firing on `step/start` itself) lands in the log after the boundary and joins the NEXT request. For waterfall-window appends this matches the prior loop (it also derived before its waterfall); for a synchronous `step/start` listener it is a deliberate change — such a listener could previously reach the current request — and `agent/pre-step` is the sanctioned seam for content that must affect the CURRENT request. A step's header for reconstruction is the fold after its own `request/header*` event (which sits between its `step/start` and first response event) or the fold carried forward. diff --git a/packages/compact/compact-basic/README.md b/packages/compact/compact-basic/README.md index 86ba3c32a3..a06e74b818 100644 --- a/packages/compact/compact-basic/README.md +++ b/packages/compact/compact-basic/README.md @@ -8,7 +8,7 @@ This is the implementation tier of the compaction capability — see the [interf The abstract contract states only WHAT compaction does; this backend owns every HOW decision: -- **Token estimation** — `estimateContentTokens()`: chars divided by the `charsPerToken` config (default 4) with per-block structural overhead (`text`/`reasoning` = `ceil(len/charsPerToken) + 4`, `tool-call` from name + arguments, `tool-result` recursive, unknown blocks via JSON length). The pressure gate estimates the NEXT request via `estimatePressure()`: the logged session prefix (`EpochHeader.messagePrefix` from the header fold — the `agent/session-prefix` product rides every request in front of the history, so omitting it would under-estimate pressure by exactly the prefix) + the derived history + the system prompt. +- **Token estimation** — `estimateContentTokens()`: chars divided by the `charsPerToken` config (default 4) with per-block structural overhead (`text`/`reasoning` = `ceil(len/charsPerToken) + 4`, `tool-call` from name + arguments, `tool-result` recursive, unknown blocks via JSON length). The pressure gate estimates the NEXT request via `estimatePressure()`: the session prefix (the `agent/session-prefix` product — composed by the loop BEFORE the pre-step seam and handed through it, so the gate counts the prefix this instance will actually send in front of the history, never a stale logged one) + the derived history + the system prompt. - **Retention policy** — `compactIfNeeded()` walks the surface nodes tail→head summing per-node token estimates, and retains the smallest tail-run of WHOLE units (a closed step, or a single no-step node such as a pre-step `user/message` or inter-step `steering/message`) whose total reaches `retainTokens`; everything older is compacted. Retention is **turn-agnostic** — turn boundaries play no role, so a single runaway turn that alone exceeds the window compacts its OWN early closed steps rather than being retained verbatim (the failure mode that motivated dropping turn-protection: a tool-heavy turn must stay compactable or the harness dies exactly when compaction is needed). The only structural guard is **tool-pairing balance**: the compacted region's edges are balanced cuts on the surface (no unanswered tool-call crosses either edge), so it never splits a step's `assistant/message` tool-calls from their `tool/result`s. When the only compactable content left is an un-splittable open tail step, it declines (returns `null`) and retries once an older step closes. **Single-unit overflow is out of scope, by design**: if one retained unit (a single closed step, or a large pasted `user/message`) ALONE exceeds the budget, compaction cannot help and the call may go out over-budget — bounding an individual unit's size is a separate concern. `compactRegion()` enforces tool-pairing balance strictly, throwing on a boundary that would split a step. `dsh-session` exports `isToolPairingBalanced` for the check. - **Dynamic convergence** — no static summary-length config pretends to bound what the model will write. If framing/estimator/system overhead leaves the compacted surface above threshold, `compactIfNeeded()` re-compacts the head checkpoint up to `compactionRetries` extra times; if it still cannot get below threshold, it throws. A summary whose estimated stored size is not smaller than the shadowed content fails closed before it mutates the surface. - **Summarization** — `summarize()`: a `GenerateOptions` request assembled via `BlockAssembler` with a fixed system prompt that asks for a structured checkpoint (Primary Request and Intent · Key Technical Concepts · Files and Code · Errors and Fixes · Pending Tasks · Current Work · Next Step · Critical Context), every section mandatory, exact paths/commands/identifiers preserved. The request is a direct one-shot `ctx.llm.stream()` call — NOT a loop step, so it does not run `agent/request` (that seam shapes the loop's conversation requests); the model comes from `summarizationModel` falling back to the agent's own, and per-call routing happens at `llm/stream` like any other direct call. `maxTokens` is the provider-side generation cap; only text blocks from the model's reply are kept before the checkpoint is stored (reasoning is dropped so private chain-of-thought never leaks into the durable summary, and a stray `tool-call` is dropped so the synthesized `user/message` summary cannot land an orphaned call with no matching `tool-result`). The compacted region is flattened to a plain-text transcript first: text and reasoning contribute their text, and every non-text block (tool-call, tool-result, plugin-added types) contributes a type-tagged placeholder (`[tool-call: name(args)]`, `[tool-result: …]`, …) so the summarizer is told what existed rather than silently dropping it. diff --git a/packages/compact/compact-basic/src/index.ts b/packages/compact/compact-basic/src/index.ts index 87765b574e..d895784c5c 100644 --- a/packages/compact/compact-basic/src/index.ts +++ b/packages/compact/compact-basic/src/index.ts @@ -183,11 +183,11 @@ export class BasicCompactService extends CompactService { // log-only `compact/*` records and the replacement node cleanly outside a // step, so a crash mid-compaction leaves an inert orphan the turn-repair // closes — never a half-open step. - ctx.on('agent/pre-step', async (agent: Agent, _turn: number, _step: number, fullSystemPrompt: string, signal: AbortSignal) => { + ctx.on('agent/pre-step', async (agent: Agent, _turn: number, _step: number, fullSystemPrompt: string, sessionPrefix: readonly Message[], signal: AbortSignal) => { try { - const result = await this.compactIfNeeded(agent, fullSystemPrompt, signal) + const result = await this.compactIfNeeded(agent, fullSystemPrompt, sessionPrefix, signal) if (result) { - const after = this.estimatePressure(agent.session, fullSystemPrompt) + const after = this.estimatePressure(agent.session, fullSystemPrompt, sessionPrefix) ctx.logger.info( `compaction: shadowed ${result.shadowedSeqs.length} surface nodes ` + `(seqs ${result.shadowedRange.start}-${result.shadowedRange.end}, ` + @@ -360,7 +360,7 @@ export class BasicCompactService extends CompactService { /** * The sole token-pressure gate: estimate the NEXT request's pressure — the - * logged session prefix + the surface-derived history + the system prompt + * session prefix + the surface-derived history + the system prompt * ({@link estimatePressure}) — and if it exceeds the threshold * (`contextWindow * thresholdRatio`), compact * the oldest surface nodes outside the `retainTokens` budget. The auto- @@ -369,7 +369,11 @@ export class BasicCompactService extends CompactService { * carries it in front of the history (`EpochHeader.messagePrefix`) even * though it is not derived history — omitting it would under-estimate by * exactly the prefix and let a deployment at the window edge skip - * compaction, then ship an over-window request. Compaction itself can only + * compaction, then ship an over-window request. The loop composes the + * prefix BEFORE the pre-step seam and hands it through, so the gate sees + * this instance's actual prefix (never a previous instance's logged one — + * a resumed/forked instance whose contributor grew is gated on the grown + * value from its very first step). Compaction itself can only * shrink HISTORY: a prefix that alone approaches the window is a * configuration error no compactor fixes. * @@ -395,13 +399,14 @@ export class BasicCompactService extends CompactService { override async compactIfNeeded( agent: Agent, fullSystemPrompt: string, + sessionPrefix: readonly Message[], signal: AbortSignal, ): Promise { const session = agent.session const threshold = Math.floor(this.config.contextWindow * this.config.thresholdRatio) let result: CompactionResult | null = null for (let attempt = 0; attempt <= this.config.compactionRetries; attempt++) { - const totalTokens = this.estimatePressure(session, fullSystemPrompt) + const totalTokens = this.estimatePressure(session, fullSystemPrompt, sessionPrefix) if (totalTokens < threshold) return result const range = this._compactableRange(session) @@ -415,7 +420,7 @@ export class BasicCompactService extends CompactService { result = await this.compactRegion(session, range.start, range.end, agent, signal) } - const totalTokens = this.estimatePressure(session, fullSystemPrompt) + const totalTokens = this.estimatePressure(session, fullSystemPrompt, sessionPrefix) if (totalTokens < threshold) return result throw new Error( @@ -425,19 +430,16 @@ export class BasicCompactService extends CompactService { } /** - * Estimated token pressure of the NEXT request: the logged session prefix - * (`EpochHeader.messagePrefix` from the header fold — request-only messages - * the loop sends in front of the derived history), the derived history, and - * the system prompt. The fold is exact from the loop instance's second - * request on (and from a resumed instance's first — the previous instance - * logged its prefix); it is absent only before a fresh session's first - * request, where the history is a single prompt and compaction is moot. + * Estimated token pressure of the NEXT request: the session prefix + * (`EpochHeader.messagePrefix` — request-only messages the loop sends in + * front of the derived history, composed before the pre-step seam and + * handed to the gate), the derived history, and the system prompt. * @param session - the session whose next request is being estimated. * @param fullSystemPrompt - the assembled system prompt (counts toward pressure). + * @param sessionPrefix - the instance's composed session prefix (counts toward pressure). * @returns the estimated token total the next request will carry. */ - estimatePressure(session: Session, fullSystemPrompt: string): number { - const sessionPrefix = session.requestHeader()?.messagePrefix ?? [] + estimatePressure(session: Session, fullSystemPrompt: string, sessionPrefix: readonly Message[]): number { return this.estimateTokens([...sessionPrefix, ...session.deriveMessages()], fullSystemPrompt) } diff --git a/packages/compact/compact-basic/tests/compact-basic.spec.ts b/packages/compact/compact-basic/tests/compact-basic.spec.ts index b58e50f4c3..e40f079c6b 100644 --- a/packages/compact/compact-basic/tests/compact-basic.spec.ts +++ b/packages/compact/compact-basic/tests/compact-basic.spec.ts @@ -557,27 +557,22 @@ describe('BasicCompactService.compactIfNeeded', () => { expect(result!.shadowedSeqs.length).toBeGreaterThan(0) }) - it('counts the logged session prefix toward pressure (every request carries it in front of the history)', async () => { + it('counts the session prefix toward pressure (every request carries it in front of the history)', async () => { const svc = createTestService({ contextWindow: 200, thresholdRatio: 0.5, retainTokens: 10 }) const session = multiTurnSession(3, 1) // 6 derived messages ≈ 84 estimated tokens — under the 100 threshold alone expect(await compactIfNeeded(svc, session, '', 'm', SIGNAL)).toBeNull() - // The loop records the composed agent/session-prefix product on the - // request header; it rides every request, so pressure must include it. - session.append('request/header', { - header: { - config: { model: 'm' }, - messagePrefix: [ - { role: 'user', content: [{ type: 'text', text: `opener one.${LONG_FIXTURE_TEXT}` }] }, - { role: 'user', content: [{ type: 'text', text: `opener two.${LONG_FIXTURE_TEXT}` }] }, - ], - }, - reason: 'initial', - }) - const result = await compactIfNeeded(svc, session, '', 'm', SIGNAL) + // The loop composes the agent/session-prefix product before the pre-step + // seam and hands it to the gate; it rides every request, so pressure must + // include it — the same history now crosses the threshold. + const sessionPrefix: Message[] = [ + { role: 'user', content: [{ type: 'text', text: `opener one.${LONG_FIXTURE_TEXT}` }] }, + { role: 'user', content: [{ type: 'text', text: `opener two.${LONG_FIXTURE_TEXT}` }] }, + ] + const result = await compactIfNeeded(svc, session, '', 'm', SIGNAL, sessionPrefix) expect(result).not.toBeNull() // The prefix itself is NOT history: compaction shadowed surface nodes only. - expect(session.requestHeader()?.messagePrefix).toHaveLength(2) + expect(sessionPrefix).toHaveLength(2) }) it('returns the first compaction result when a zero-retry pass converges after the loop', async () => { @@ -1005,8 +1000,9 @@ function compactIfNeeded( fullSystemPrompt: string, model: string, signal: AbortSignal, + sessionPrefix: readonly Message[] = [], ) { - return svc.compactIfNeeded(stubAgent(session, model), fullSystemPrompt, signal) + return svc.compactIfNeeded(stubAgent(session, model), fullSystemPrompt, sessionPrefix, signal) } function compactRegion( @@ -1174,7 +1170,7 @@ describe('BasicCompactService.summarize (real ctx.llm.stream)', () => { describe('BasicCompactService auto-compaction (agent/pre-step listener)', () => { /** Fire the agent/pre-step serial checkpoint as the loop does. */ function firePreStep(ctx: Context, agent: Agent, step: number, fullSystemPrompt: string): Promise { - return ctx.serial('agent/pre-step', agent, 1, step, fullSystemPrompt, SIGNAL) + return ctx.serial('agent/pre-step', agent, 1, step, fullSystemPrompt, [], SIGNAL) } it('compacts (mutating the surface) when over threshold', async () => { @@ -1276,7 +1272,7 @@ describe('BasicCompactService auto-compaction (agent/pre-step listener)', () => const session = multiTurnSession(5, 1) const agent = stubAgent(session, 'agent-model') - await ctx.serial('agent/pre-step', agent, 1, 1, '', SIGNAL) + await ctx.serial('agent/pre-step', agent, 1, 1, '', [], SIGNAL) expect(adapter.lastOptions?.model).toBe('routed-model') expect(session.events.some(e => e.type === 'compact/summary')).toBe(true) @@ -1415,7 +1411,7 @@ describe('BasicCompactService edge cases', () => { const session = multiTurnSession(4, 1) const agent = stubAgent(session, 'test-model') - await ctx.serial('agent/pre-step', agent, 1, 1, '', SIGNAL) + await ctx.serial('agent/pre-step', agent, 1, 1, '', [], SIGNAL) expect(session.events.some(e => e.type === 'compact/summary')).toBe(true) // The surface was mutated; the head message is the framed summary checkpoint. expect(session.deriveMessages()[0]!.content).toContainEqual({ type: 'text', text: 'SUMMARY' }) @@ -1495,7 +1491,7 @@ describe('BasicCompactService edge cases', () => { const agent = stubAgent(session, 'test-model') const before = session.surface.nodes.length - await ctx.serial('agent/pre-step', agent, 1, 1, '', SIGNAL) + await ctx.serial('agent/pre-step', agent, 1, 1, '', [], SIGNAL) // The failure was swallowed; the surface is untouched and a warning logged. expect(session.surface.nodes.length).toBe(before) expect(session.events.some(e => e.type === 'compact/summary')).toBe(false) @@ -1512,7 +1508,7 @@ describe('BasicCompactService edge cases', () => { const agent = stubAgent(session, 'test-model') const bigSystem = 'x'.repeat(900) // ceil(900/4)=225 > threshold 200 - await ctx.serial('agent/pre-step', agent, 1, 1, bigSystem, SIGNAL) + await ctx.serial('agent/pre-step', agent, 1, 1, bigSystem, [], SIGNAL) expect(session.events.some(e => e.type === 'compact/start')).toBe(false) expect(svc.summarizeCalls.length).toBe(0) }) diff --git a/packages/compact/compact/src/index.ts b/packages/compact/compact/src/index.ts index cc190ccd87..8ba121a43f 100644 --- a/packages/compact/compact/src/index.ts +++ b/packages/compact/compact/src/index.ts @@ -22,6 +22,7 @@ */ import { Context, Service } from 'cordis' +import type { Message } from '@deepseek-ai/dsh-llm' import type { Session } from '@deepseek-ai/dsh-session' import type { CompactionResult } from './types.ts' @@ -68,16 +69,20 @@ export abstract class CompactService extends Service { /** * Check token pressure and compact if the conversation is too large. * - * Estimates the current surface-derived history size (including the system - * prompt), and if it exceeds the backend's threshold, compacts an older range + * Estimates the NEXT request's size — the session prefix, the + * surface-derived history, and the system prompt — and if it exceeds the + * backend's threshold, compacts an older range * via {@link compactRegion}, keeping recent context intact. Returns `null` * when no compaction is needed. * * Scope and guarantees a backend MUST honor: - * - **Surface-derived history only.** The decision is made against the history - * derived from the session surface — the only thing compaction can act on. - * Non-surface context injected downstream (into the request `messages` by a - * later listener) is out of this accounting by construction. + * - **Compaction acts on surface-derived history only**, but the ESTIMATE + * counts everything the request carries: the loop composes the session + * prefix before the pre-step seam fires and hands it here, so the gate + * sees the prefix this instance will actually send (`EpochHeader.messagePrefix` + * — request-only, never derived history). Non-surface context injected + * downstream (into the request `messages` by a later listener) is out of + * this accounting by construction. * - **Head-anchored, best-effort.** Auto-compaction consolidates from the * surface HEAD up to a balanced tool-pairing cutoff, so a prior head * checkpoint is @@ -88,10 +93,14 @@ export abstract class CompactService extends Service { * - **Single-unit overflow is out of scope.** If a single retained unit (one * closed step, or a large free node such as a pasted `user/message`) ALONE * exceeds the budget, compaction cannot help and the call may go out - * over-budget. Bounding an individual unit's size is a separate concern. + * over-budget. Bounding an individual unit's size is a separate concern — + * as is a session prefix that alone approaches the window (a + * configuration error no compactor fixes: compaction cannot shrink the + * prefix). * * @param agent - agent context owning the session surface and model options. * @param fullSystemPrompt - assembled system prompt, counted toward the estimate. + * @param sessionPrefix - the instance's composed session prefix, counted toward the estimate. * @param signal - cancellation signal. A backend summarizing via * `ctx.llm.stream()` MUST forward this into the call's `GenerateOptions.signal` * so an abort/dispose tears down the in-flight summarization rather than @@ -101,6 +110,7 @@ export abstract class CompactService extends Service { abstract compactIfNeeded( agent: CompactAgentContext, fullSystemPrompt: string, + sessionPrefix: readonly Message[], signal: AbortSignal, ): Promise diff --git a/packages/compact/compact/tests/compact.spec.ts b/packages/compact/compact/tests/compact.spec.ts index 93c4e806ce..c4daa8cc5a 100644 --- a/packages/compact/compact/tests/compact.spec.ts +++ b/packages/compact/compact/tests/compact.spec.ts @@ -2,6 +2,7 @@ import { describe, expect, it } from 'vitest' import { Context } from 'cordis' import { CompactService } from '@deepseek-ai/dsh-compact' import type { CompactionResult } from '@deepseek-ai/dsh-compact' +import type { Message } from '@deepseek-ai/dsh-llm' import { Session, SessionId } from '@deepseek-ai/dsh-session' import type { CompactAgentContext } from '@deepseek-ai/dsh-compact' @@ -18,6 +19,7 @@ class StubCompactService extends CompactService { override async compactIfNeeded( _agent: CompactAgentContext, _fullSystemPrompt: string, + _sessionPrefix: readonly Message[], signal: AbortSignal, ): Promise { this.lastSignal = signal @@ -78,7 +80,7 @@ describe('CompactService seam', () => { const ctx = new Context() const svc = new StubCompactService(ctx) const session = new Session(SessionId('s')) - expect(await svc.compactIfNeeded(stubAgent(session), '', new AbortController().signal)).toBeNull() + expect(await svc.compactIfNeeded(stubAgent(session), '', [], new AbortController().signal)).toBeNull() }) it('compact/* events merge into SessionEventMap and are log-only', async () => { @@ -107,7 +109,7 @@ describe('CompactService seam', () => { await svc.compactRegion(session, 0, 0, stubAgent(session, 'm'), controller.signal) expect(svc.lastSignal).toBe(controller.signal) - await svc.compactIfNeeded(stubAgent(session), '', controller.signal) + await svc.compactIfNeeded(stubAgent(session), '', [], controller.signal) expect(svc.lastSignal).toBe(controller.signal) }) }) diff --git a/packages/core/agent-loop/README.md b/packages/core/agent-loop/README.md index d4c1c50466..2af8ad29f6 100644 --- a/packages/core/agent-loop/README.md +++ b/packages/core/agent-loop/README.md @@ -55,12 +55,13 @@ forever: STEP loop: drain steering assembly = systemPrompt.assemble({agent}) ⟵ renderPrompt(assembly) IS the full prompt - await serial agent/pre-step ⟵ surface mutation (compaction) outside the step + prefix ??= waterfall agent/session-prefix ⟵ once per instance (first step): frozen + session prefix; on the header, never history + await serial agent/pre-step(…, prefix) ⟵ surface mutation (compaction) outside the step; + pressure gates see the prefix the request carries boundary = session.deriveMessages() ⟵ reconstruction boundary: same sync frame, session('step/start') strictly before step/start config = waterfall agent/request ⟵ frozen seed; return a replacement to switch - prefix ??= waterfall agent/session-prefix ⟵ once per instance (first request): frozen - session prefix; on the header, never history session('request/header'[-delta]) ⟵ the header event this request owes the log stream llm.stream(freeze({header..., messages: prefix+boundary})) → session('assistant/chunk') message = waterfall agent/step-result diff --git a/packages/core/agent-loop/src/loop.ts b/packages/core/agent-loop/src/loop.ts index 753da50db7..31ebb61380 100644 --- a/packages/core/agent-loop/src/loop.ts +++ b/packages/core/agent-loop/src/loop.ts @@ -157,13 +157,14 @@ export interface LoopHandle { * drain steering → session('steering/message') ⟵ catches late steering * assembly = ctx.systemPrompt.assemble({agent}) ⟵ waterfall system-prompt/assemble; renderPrompt * (persona section + {{variables}}) IS the full prompt - * await ctx.serial('agent/pre-step') ⟵ surface mutation (compaction) OUTSIDE the step + * prefix ??= waterfall agent/session-prefix ⟵ once per loop instance (first step): frozen + * session prefix; logged on the header, never + * session history + * await ctx.serial('agent/pre-step', …, prefix) ⟵ surface mutation (compaction) OUTSIDE the step; + * pressure gates see the prefix the request carries * boundary = session.deriveMessages() ⟵ the reconstruction boundary: snapshot in the * session('step/start') same sync frame, strictly before step/start * config = waterfall agent/request(config) ⟵ frozen seed; a returned replacement switches - * prefix ??= waterfall agent/session-prefix ⟵ once per loop instance (first request): - * frozen session prefix; logged on the header, - * never session history * session('request/header'|'request/header-delta') ⟵ the header event this request owes the * log (initial/resume anchor, delta, fallback) * req = freeze({header..., messages: prefix+boundary, sessionId, signal}) @@ -475,6 +476,41 @@ async function runTurn( break } + // Compose the session prefix ONCE per loop instance, lazily before the + // instance's first pre-step: request-only messages placed in front of + // the ENTIRE derived history on every request this instance sends. It + // MUST precede the pre-step seam so compaction gates on THIS instance's + // prefix — reading a previous instance's logged prefix would let a + // resumed/forked instance whose contributor grew skip compaction and + // ship an over-window first request. The result is deep-cloned + // (decoupled from listener-held references), deep-frozen, and cached on + // the transmission bookkeeping, so reuse is structural — the prefix + // cannot change mid-session and the provider prefix cache holds by + // construction (resume = a new instance = a recompose, anchored by its + // 'resume' snapshot). The prefix is not session history — the header + // event in runStep is its only durable record + // (EpochHeader.messagePrefix). The frozen empty seed serves both the + // listener chain and the no-listener fallback: a contribution is a + // RETURNED extension of `await next()`, never an in-place push. This + // runs OUTSIDE the step, before the boundary snapshot: a composing + // listener's session append lands before the boundary and joins the + // CURRENT request. + if (transmission.sessionPrefix === undefined) { + const emptyPrefix: Message[] = deepFreeze([]) + transmission.sessionPrefix = deepFreeze(structuredClone(await ctx.waterfall( + 'agent/session-prefix', agent, emptyPrefix, abort.signal, + () => Promise.resolve(emptyPrefix), + ))) + } + + // Interruption landing during prefix composition: mirror the assembly + // window above — drop the about-to-start step without running the seam. + if (handle.isCancelled() || handle.isDisposed()) { + handle.setAbort(undefined) + reason = handle.isDisposed() ? { kind: 'disposed' } : { kind: 'aborted', reason: handle.cancelReason() } + break + } + // Pre-step surface-mutation checkpoint (compaction), fired OUTSIDE the // step: after `turn/start` (and the prior step's close) but before // `step/start`, so a compaction's log-only `compact/*` records and its @@ -485,8 +521,10 @@ async function runTurn( // concurrent listeners cannot interleave their `session.append`s. A // throwing listener escapes to the outer catch, which closes the (not-yet- // open) step as a no-op and ends the turn via failTurn — a broken - // pre-step plugin ends the turn, not the loop. - await ctx.serial('agent/pre-step', agent, turn, step, fullSystemPrompt, abort.signal) + // pre-step plugin ends the turn, not the loop. The composed session + // prefix rides along so token-pressure listeners count everything the + // request will actually carry. + await ctx.serial('agent/pre-step', agent, turn, step, fullSystemPrompt, transmission.sessionPrefix, abort.signal) // Interruption landing during the pre-step seam: do not open an empty step. if (handle.isCancelled() || handle.isDisposed()) { @@ -722,27 +760,10 @@ async function runStep( throw new Error(`agent "${agent.id}" has no model: set AgentOptions.model or supply one via the agent/request waterfall`) } - // Compose the session prefix ONCE per loop instance, lazily on its first - // request-building step: request-only messages placed in front of the - // ENTIRE derived history on every request this instance sends. The result - // is deep-cloned (decoupled from listener-held references), deep-frozen, - // and cached on the transmission bookkeeping, so reuse is structural — the - // prefix cannot change mid-session and the provider prefix cache holds by - // construction (resume = a new instance = a recompose, anchored by its - // 'resume' snapshot). The prefix is not session history — the header event - // below is its only durable record (EpochHeader.messagePrefix), which - // keeps the request a pure function of the log. The frozen empty seed - // serves both the listener chain and the no-listener fallback: a - // contribution is a RETURNED extension of `await next()`, never an - // in-place push. - if (transmission.sessionPrefix === undefined) { - const emptyPrefix: Message[] = deepFreeze([]) - transmission.sessionPrefix = deepFreeze(structuredClone(await ctx.waterfall( - 'agent/session-prefix', agent, emptyPrefix, signal, - () => Promise.resolve(emptyPrefix), - ))) - } - const sessionPrefix = transmission.sessionPrefix + // The session prefix was composed (once per instance) before this step's + // pre-step seam — the caller guarantees it, so the cache is always set here. + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion -- runTurn composes the prefix before every runStep call + const sessionPrefix = transmission.sessionPrefix! // The request header (the log's request/header* vocabulary): canonical form, // recorded before dispatch so the log always explains the request — diff --git a/packages/core/agent-loop/tests/cancel.spec.ts b/packages/core/agent-loop/tests/cancel.spec.ts index 0e77f0bcbf..4b3be6e1c1 100644 --- a/packages/core/agent-loop/tests/cancel.spec.ts +++ b/packages/core/agent-loop/tests/cancel.spec.ts @@ -166,6 +166,69 @@ describe('Agent.cancel()', () => { expect(reasons.length).toBe(2) }) + it('cancel from inside the agent/session-prefix waterfall drops the step (prefix-composition window)', async () => { + const adapter = new MockAdapter([textResponse('should not stream')]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + + // Prefix composition runs before the pre-step seam on the instance's first + // step; a cancel landing inside it must drop the about-to-start step + // without running the seam or the model. + let streamed = false + ctx.on('session/event', (_s, event) => { if (event.type === 'assistant/chunk') streamed = true }) + ctx.on('agent/session-prefix', async (_agent, _prefix, _signal, next) => { + agent.cancel('from prefix composition') + return next() + }) + + const reasons: TurnEndReason[] = [] + ctx.on('session/event', (_s, event) => { if (event.type === 'turn/end') reasons.push(event.data.reason) }) + + send(agent, 'go') + await waitForIdle(ctx, agent) + + expect(streamed).toBe(false) + expect(reasons).toEqual([{ kind: 'aborted', reason: 'from prefix composition' }]) + }) + + it('disposal from inside the agent/session-prefix waterfall ends the turn disposed (prefix-composition window)', async () => { + const adapter = new MockAdapter([textResponse('should not stream')]) + const ctx = new Context() + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(AgentLoop, { agents: [] }) + ctx.llm.registerAdapter(['mock'], adapter) + + const handle = ctx.agents.create({ + agentId: AgentId('a-dispose-prefix'), + sessionId: SessionId('dispose-prefix-session'), + agentOptions: { model: 'mock' }, + }) + const agent = handle.agent as ReactLoopAgent + + let disposalDone: Promise | undefined + let streamed = false + ctx.on('session/event', (_s, event) => { if (event.type === 'assistant/chunk') streamed = true }) + ctx.on('agent/session-prefix', async (_agent, _prefix, _signal, next) => { + disposalDone = handle.dispose() + return next() + }) + + send(agent, 'go') + await new Promise(resolve => setTimeout(resolve, 0)) + await disposalDone + await agent.done + + // No step opened, no model call ran, and the turn closed disposed. + expect(streamed).toBe(false) + expect(adapter.requests).toHaveLength(0) + const turnEnd = agent.session.events.findLast(e => e.type === 'turn/end') + expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason).toEqual({ kind: 'disposed' }) + }) + it('cancel from a synchronous turn/start session-event listener drops the step (step-start window)', async () => { const adapter = new MockAdapter([textResponse('should not stream')]) const ctx = await harness(adapter) diff --git a/packages/core/agent-loop/tests/interception.spec.ts b/packages/core/agent-loop/tests/interception.spec.ts index d97710e6d6..bab2ae6ea1 100644 --- a/packages/core/agent-loop/tests/interception.spec.ts +++ b/packages/core/agent-loop/tests/interception.spec.ts @@ -352,6 +352,33 @@ describe('agent/session-prefix', () => { expect(agent.session.deriveMessages()[0]).toEqual({ role: 'user', content: [{ type: 'text', text: 'go' }] }) }) + it('composes before the first pre-step and hands the prefix to the seam (pressure gates see the real value)', async () => { + const adapter = new MockAdapter([textResponse('ok')]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + + const reminder: Message = { role: 'user', content: [{ type: 'text', text: 'opener' }] } + const order: string[] = [] + ctx.on('agent/session-prefix', async (_agent, _prefix, _signal, next): Promise => { + order.push('compose') + return [reminder, ...await next()] + }) + const seen: (readonly Message[])[] = [] + ctx.on('agent/pre-step', (_agent, _turn, _step, _system, sessionPrefix) => { + order.push('pre-step') + seen.push(sessionPrefix) + }) + + send(agent, 'hi') + await waitForIdle(ctx, agent) + + // Composition precedes the pre-step seam, and the seam receives THIS + // instance's composed prefix — a token-pressure gate (compaction) counts + // what the request will actually carry, never a stale logged prefix. + expect(order).toEqual(['compose', 'pre-step']) + expect(seen[0]).toEqual([reminder]) + }) + it('the canonical prepend pattern composes contributions in registration order', async () => { const adapter = new MockAdapter([textResponse('ok')]) const ctx = await harness(adapter) diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index 8a811048c6..8ad204c579 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -43,9 +43,9 @@ Turn and step boundaries are NOT mirrored as `agent/*` emits: a consumer that ne - `agent/session-start` (emit) — fired once before the first turn; a listener seeds context via `agent.inject()` (it cannot veto startup). - `agent/prompt-submit` — decide what happens to one drained queued message before it becomes a `user/message`: `PromptDecision` = `allow` (optionally rewriting the prompt `content` or attaching `additionalContext`) or `block` (drop it; a batch whose every prompt is blocked opens a zero-step turn that ends `rejected`). Maps onto Claude Code's `UserPromptSubmit`. -- `agent/pre-step` (serial) — mutate the session surface before the step opens and history is derived (compaction). Fires after `turn/start` and before `step/start`, so a listener's appended events land outside the step. +- `agent/pre-step` (serial) — mutate the session surface before the step opens and history is derived (compaction). Fires after `turn/start` and before `step/start`, so a listener's appended events land outside the step; carries the assembled system prompt and the instance's composed session prefix so a token-pressure gate counts everything the request will carry. - `agent/request` — shape the call config before the model call: a frozen `LlmCallConfig` seed in, a replacement out (model switching, sampling overrides). Content is not shapeable here — every request is a pure function of the session log ([reconstructability RFC](../../../docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)); the loop logs whatever config the request actually uses as a `request/header*` event -- `agent/session-prefix` — compose the session prefix: request-only messages placed in front of the ENTIRE derived history on every request. Fired ONCE per loop instance, lazily on its first request; the composed result is deep-frozen, recorded as `EpochHeader.messagePrefix` on the anchoring `request/header` snapshot, and reused verbatim afterwards — the prefix cannot change mid-session, so the provider prefix cache holds by construction (resume = a new instance = a recompose, attributably anchored by its `'resume'` snapshot). The home for session-stable openers that must not become durable history (a skills catalog, an AGENTS.md digest); `deriveMessages()` never returns it. Content that CHANGES mid-session belongs in the append-only history channels instead — `agent.inject()`, `tools/post-execute` `additionalContext`, prompt-submit `additionalContext` — each a durable `context/message` paid once and prefix-cached thereafter +- `agent/session-prefix` — compose the session prefix: request-only messages placed in front of the ENTIRE derived history on every request. Fired ONCE per loop instance, lazily before its first pre-step (so pressure gates see this instance's real prefix, never a previous instance's logged one); the composed result is deep-frozen, recorded as `EpochHeader.messagePrefix` on the anchoring `request/header` snapshot, and reused verbatim afterwards — the prefix cannot change mid-session, so the provider prefix cache holds by construction (resume = a new instance = a recompose, attributably anchored by its `'resume'` snapshot). The home for session-stable openers that must not become durable history (a skills catalog, an AGENTS.md digest); `deriveMessages()` never returns it. Content that CHANGES mid-session belongs in the append-only history channels instead — `agent.inject()`, `tools/post-execute` `additionalContext`, prompt-submit `additionalContext` — each a durable `context/message` paid once and prefix-cached thereafter - `agent/step-result` — post-process the assembled assistant message before tool dispatch (validates what the log records) - `agent/turn-continuation` — override the continue/stop decision via `ContinuationDecision` = `{action:'stop'}` or `{action:'continue', reason?}` (a `continue` `reason` is recorded as next-step steering in the same turn — the typed `/goal` pattern). Force-continue `/loop`, force-stop budget guard. diff --git a/packages/core/agent/src/types.ts b/packages/core/agent/src/types.ts index 9121fe87bb..f17c666286 100644 --- a/packages/core/agent/src/types.ts +++ b/packages/core/agent/src/types.ts @@ -333,21 +333,28 @@ declare module 'cordis' { * value; this event is typed and documented as `void`, so listeners must not * return a semantic veto value. `fullSystemPrompt` is the assembled prompt a * listener needs to measure pressure (the system prompt counts toward the - * budget). `signal` cancels any in-flight work a listener starts (e.g. a + * budget), and `sessionPrefix` is the instance's composed + * {@link agent/session-prefix} product for the same reason — every request + * carries it in front of the derived history, and it is composed BEFORE + * this seam fires precisely so a pressure gate counts the prefix the + * request will actually send (never a stale logged one). `signal` cancels + * any in-flight work a listener starts (e.g. a * summarization model call). * @param agent - the agent about to open the step. * @param turn - the already-open turn this step belongs to. * @param step - the number of the step about to start. * @param fullSystemPrompt - the assembled prompt, for measuring token pressure. + * @param sessionPrefix - the instance's frozen session prefix, for the same measurement. * @param signal - aborts in-flight listener work when the turn is torn down. * @mode serial */ - // TODO: `fullSystemPrompt` is a smell on a generic per-step seam — compaction - // is its only consumer, so a wide event carries a string just one listener + // TODO: `fullSystemPrompt`/`sessionPrefix` are a smell on a generic + // per-step seam — compaction + // is their only consumer, so a wide event carries payloads just one listener // reads. Revisit if no second consumer appears: e.g. hand listeners a lazy // prompt provider, or move token-pressure measurement behind a // compaction-specific seam instead of the shared pre-step checkpoint. - 'agent/pre-step'(agent: Agent, turn: number, step: number, fullSystemPrompt: string, signal: AbortSignal): Promise | void + 'agent/pre-step'(agent: Agent, turn: number, step: number, fullSystemPrompt: string, sessionPrefix: readonly Message[], signal: AbortSignal): Promise | void /** * Waterfall: decide what happens to ONE drained queued message before it * becomes a `user/message` — allow (optionally rewriting the prompt bytes or @@ -389,13 +396,18 @@ declare module 'cordis' { * Waterfall: compose the SESSION PREFIX — request-only messages placed in * front of the ENTIRE derived history (directly after the provider's * system slot) on every request this loop instance sends. Fired ONCE per - * loop instance, lazily on its first request-building step; the composed + * loop instance, lazily before its first step's {@link agent/pre-step} + * seam — BEFORE the pre-step so a token-pressure gate (compaction) counts + * the prefix this instance will actually send, never a previous + * instance's logged one. The composed * result is deep-frozen, recorded as `EpochHeader.messagePrefix` on the * instance's anchoring `'initial'`/`'resume'` header snapshot, and reused * verbatim for every subsequent request — never recomputed mid-session, * so the provider prefix cache holds by construction (a process restart * or `ctx.agents.resume()` is a new instance: it recomposes, and any - * drift lands attributably on the `'resume'` snapshot). + * drift lands attributably on the `'resume'` snapshot). Composition runs + * outside the step, before the boundary snapshot: a composing listener's + * session append joins the CURRENT request's derived history. * * This is the home for session-stable openers the model must always see * but that must NOT become durable history — a skills catalog, an From 9c133c644d3dec868be27a3ce01ecc0debd2e283 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Wed, 8 Jul 2026 21:45:10 +0800 Subject: [PATCH 076/232] test(bash-local): wait for process readiness --- .../bash/bash-local/tests/executor.spec.ts | 4 ++-- packages/bash/bash-local/tests/run.spec.ts | 19 ++++++++++++++++--- 2 files changed, 18 insertions(+), 5 deletions(-) diff --git a/packages/bash/bash-local/tests/executor.spec.ts b/packages/bash/bash-local/tests/executor.spec.ts index ce89b2a0ae..db25575484 100644 --- a/packages/bash/bash-local/tests/executor.spec.ts +++ b/packages/bash/bash-local/tests/executor.spec.ts @@ -90,8 +90,8 @@ describe('LocalBashExecutor.run', () => { it('kill escalation uses the configured graceMs (a TERM-trapping task dies by SIGKILL)', async () => { const { bash } = await setup() // setup pins graceMs: 200 via config - const task = bash.start(bash.resolve({ command: 'trap \'\' TERM; sleep 60' })) - await new Promise(resolve => setTimeout(resolve, 100)) + const task = bash.start(bash.resolve({ command: 'trap \'\' TERM; echo ready; while :; do sleep 60 & wait $!; done' })) + await readUntil(bash, task.id, 'ready\n') bash.kill(task.id) await task.done expect(task.signal).toBe('SIGKILL') diff --git a/packages/bash/bash-local/tests/run.spec.ts b/packages/bash/bash-local/tests/run.spec.ts index d2888e2fee..4f06fefadc 100644 --- a/packages/bash/bash-local/tests/run.spec.ts +++ b/packages/bash/bash-local/tests/run.spec.ts @@ -56,6 +56,20 @@ async function waitForStdout(running: RunningBash, expected: string, timeoutMs = throw new Error(`stdout did not include ${JSON.stringify(expected)} after ${timeoutMs}ms`) } +async function waitForPidFile(path: string, timeoutMs = 5_000): Promise { + const deadline = Date.now() + timeoutMs + while (Date.now() < deadline) { + try { + const pid = Number(readFileSync(path, 'utf8').trim()) + if (Number.isSafeInteger(pid) && pid > 0) return pid + } catch { + // The child shell has not written the pid file yet. + } + await new Promise(resolve => setTimeout(resolve, 20)) + } + throw new Error(`pid file ${path} was not written after ${timeoutMs}ms`) +} + describe('runBash', () => { it('captures stdout on success', async () => { const result = await runBash(spec('echo hello')).done @@ -107,7 +121,7 @@ describe('runBash', () => { }) it('escalates to SIGKILL when SIGTERM is trapped', async () => { - const running = runBash(spec('trap \'\' TERM; echo ready; sleep 60', { graceMs: 200 })) + const running = runBash(spec('trap \'\' TERM; echo ready; while :; do sleep 60 & wait $!; done', { graceMs: 200 })) await waitForStdout(running, 'ready\n') running.kill() const result = await running.done @@ -119,8 +133,7 @@ describe('runBash', () => { // group must take the sleep down with bash. const pidFile = join(spillDir, `grandchild-${Date.now()}.pid`) const running = runBash(spec(`sleep 60 & echo $! > ${pidFile}; wait`)) - await new Promise(resolve => setTimeout(resolve, 300)) - const grandchild = Number(readFileSync(pidFile, 'utf8').trim()) + const grandchild = await waitForPidFile(pidFile) expect(grandchild).toBeGreaterThan(0) running.kill() From 959a3c3a8b2198a78ad47f7a0d023ed7ac92d84d Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Wed, 8 Jul 2026 21:46:03 +0800 Subject: [PATCH 077/232] fix(agent-loop): discard an interrupted prefix composition instead of caching it MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A cancel/dispose landing inside the first agent/session-prefix waterfall used to commit the listener chain's return value to the instance cache before the interruption check dropped the turn; an abort-aware listener's degraded fallback would then ship on every later request of the instance. The commit now happens only after the composition survives the interruption check — the cache only ever holds a fully composed prefix, and the next turn recomposes under a live signal. --- docs/cordis-catalog/events.md | 10 +++--- docs/event-producer-consumer.md | 8 ++--- packages/core/agent-loop/src/loop.ts | 27 +++++++++----- packages/core/agent-loop/tests/cancel.spec.ts | 36 ++++++++++++++++++- packages/core/agent/src/types.ts | 6 +++- 5 files changed, 67 insertions(+), 20 deletions(-) diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 8b820168b3..cd7bb30e29 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -47,7 +47,7 @@ A step or turn errored. The loop reports a failure here (plus the logger) even w Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:472`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:476`](../../packages/core/agent/src/types.ts) ### `agent/pre-step` — serial @@ -101,7 +101,7 @@ Source: [`packages/core/agent/src/types.ts:394`](../../packages/core/agent/src/t ### `agent/session-prefix` — waterfall -Waterfall: compose the SESSION PREFIX — request-only messages placed in front of the ENTIRE derived history (directly after the provider's system slot) on every request this loop instance sends. Fired ONCE per loop instance, lazily before its first step's agent/pre-step seam — BEFORE the pre-step so a token-pressure gate (compaction) counts the prefix this instance will actually send, never a previous instance's logged one. The composed result is deep-frozen, recorded as `EpochHeader.messagePrefix` on the instance's anchoring `'initial'`/`'resume'` header snapshot, and reused verbatim for every subsequent request — never recomputed mid-session, so the provider prefix cache holds by construction (a process restart or `ctx.agents.resume()` is a new instance: it recomposes, and any drift lands attributably on the `'resume'` snapshot). Composition runs outside the step, before the boundary snapshot: a composing listener's session append joins the CURRENT request's derived history. +Waterfall: compose the SESSION PREFIX — request-only messages placed in front of the ENTIRE derived history (directly after the provider's system slot) on every request this loop instance sends. Fired ONCE per loop instance, lazily before its first step's agent/pre-step seam — BEFORE the pre-step so a token-pressure gate (compaction) counts the prefix this instance will actually send, never a previous instance's logged one. The composed result is deep-frozen, recorded as `EpochHeader.messagePrefix` on the instance's anchoring `'initial'`/`'resume'` header snapshot, and reused verbatim for every subsequent request — never recomputed mid-session, so the provider prefix cache holds by construction (a process restart or `ctx.agents.resume()` is a new instance: it recomposes, and any drift lands attributably on the `'resume'` snapshot). Composition runs outside the step, before the boundary snapshot: a composing listener's session append joins the CURRENT request's derived history. A composition interrupted by a cancel/dispose landing inside the waterfall is discarded — never cached, logged, or sent — and the next turn recomposes under a live signal, so an abort-aware listener's degraded fallback cannot leak into later requests. This is the home for session-stable openers the model must always see but that must NOT become durable history — a skills catalog, an AGENTS.md digest, a workspace baseline: `Session.deriveMessages()` never returns the prefix, and the header events are its only durable record, so the request stays reconstructable from the log. Content that CHANGES mid-session belongs in the append-only history channels instead — `agent.inject()`, a `tools/post-execute` decision's `additionalContext`, prompt-submit `additionalContext` — each a durable `context/message` paid once and prefix-cached thereafter. @@ -113,7 +113,7 @@ The seed is a frozen empty list; a contributing listener returns a NEW array — Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:437`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:441`](../../packages/core/agent/src/types.ts) ### `agent/session-start` — emit @@ -149,7 +149,7 @@ Waterfall: post-process the assembled assistant Message before tool dispatch (va Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:447`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:451`](../../packages/core/agent/src/types.ts) ### `agent/turn-continuation` — waterfall @@ -161,7 +161,7 @@ Waterfall: override the turn-continuation decision via a typed ContinuationDecis Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:460`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:464`](../../packages/core/agent/src/types.ts) ## `fs/*` diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 19a2d4b1c0..a3c9cef433 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -9,16 +9,16 @@ This matrix shows which packages dispatch each harness-owned event and which pac | --- | --- | --- | --- | --- | | `agent/created` | `emit` | [`packages/core/agent/src/types.ts:265`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:272`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:472`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:476`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | | `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:357`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | | `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:370`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:290`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | | `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:394`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:437`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:441`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | | `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:305`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `agent/status` | `emit` | [`packages/core/agent/src/types.ts:281`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:447`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:460`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:451`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:464`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | diff --git a/packages/core/agent-loop/src/loop.ts b/packages/core/agent-loop/src/loop.ts index 31ebb61380..33ddee8f64 100644 --- a/packages/core/agent-loop/src/loop.ts +++ b/packages/core/agent-loop/src/loop.ts @@ -497,18 +497,27 @@ async function runTurn( // CURRENT request. if (transmission.sessionPrefix === undefined) { const emptyPrefix: Message[] = deepFreeze([]) - transmission.sessionPrefix = deepFreeze(structuredClone(await ctx.waterfall( + const composed = await ctx.waterfall( 'agent/session-prefix', agent, emptyPrefix, abort.signal, () => Promise.resolve(emptyPrefix), - ))) - } + ) - // Interruption landing during prefix composition: mirror the assembly - // window above — drop the about-to-start step without running the seam. - if (handle.isCancelled() || handle.isDisposed()) { - handle.setAbort(undefined) - reason = handle.isDisposed() ? { kind: 'disposed' } : { kind: 'aborted', reason: handle.cancelReason() } - break + // Interruption landing during prefix composition: mirror the assembly + // window above — drop the about-to-start step without running the + // seam, and DISCARD the composition instead of caching it. An + // abort-aware listener may have returned a degraded fallback under + // the firing signal; committing it would ship a prefix no request + // ever used (and no header ever logged) on this instance's next real + // request. The next turn recomposes under a live signal — the cache + // only ever holds a fully composed prefix. The cache-hit path needs + // no such check: nothing awaits between the assembly check above and + // the pre-step seam. + if (handle.isCancelled() || handle.isDisposed()) { + handle.setAbort(undefined) + reason = handle.isDisposed() ? { kind: 'disposed' } : { kind: 'aborted', reason: handle.cancelReason() } + break + } + transmission.sessionPrefix = deepFreeze(structuredClone(composed)) } // Pre-step surface-mutation checkpoint (compaction), fired OUTSIDE the diff --git a/packages/core/agent-loop/tests/cancel.spec.ts b/packages/core/agent-loop/tests/cancel.spec.ts index 4b3be6e1c1..63a75447ca 100644 --- a/packages/core/agent-loop/tests/cancel.spec.ts +++ b/packages/core/agent-loop/tests/cancel.spec.ts @@ -12,7 +12,7 @@ import { describe, expect, it } from 'vitest' import { Context } from 'cordis' -import LlmService from '@deepseek-ai/dsh-llm' +import LlmService, { type Message } from '@deepseek-ai/dsh-llm' import SessionStore, { SessionId, TurnEndReason } from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' @@ -229,6 +229,40 @@ describe('Agent.cancel()', () => { expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason).toEqual({ kind: 'disposed' }) }) + it('a cancel-interrupted prefix composition is discarded: the next send recomposes and ships the fresh prefix (stale-cache guard)', async () => { + const adapter = new MockAdapter([textResponse('reply')]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + + // The first composition is interrupted mid-waterfall and — like an + // abort-aware listener bailing on a firing signal — contributes nothing. + // Caching that degraded result would silently strip the prefix from every + // later request of this instance; the loop must discard it and recompose + // on the next send, and the SECOND composition's value must be what the + // wire and the header log carry. + const opener: Message = { role: 'user', content: [{ type: 'text', text: 'fresh opener' }] } + let compositions = 0 + ctx.on('agent/session-prefix', async (_agent, _prefix, _signal, next): Promise => { + compositions += 1 + if (compositions === 1) { + agent.cancel('mid-composition') + return next() + } + return [opener, ...await next()] + }) + + send(agent, 'dropped') + await waitForIdle(ctx, agent) + send(agent, 'real prompt') + await waitForIdle(ctx, agent) + + expect(compositions).toBe(2) + expect(adapter.requests).toHaveLength(1) + expect(adapter.requests[0]?.messages[0]).toEqual(opener) + const headerEvent = agent.session.events.find(e => e.type === 'request/header') + expect(headerEvent?.type === 'request/header' && headerEvent.data.header.messagePrefix).toEqual([opener]) + }) + it('cancel from a synchronous turn/start session-event listener drops the step (step-start window)', async () => { const adapter = new MockAdapter([textResponse('should not stream')]) const ctx = await harness(adapter) diff --git a/packages/core/agent/src/types.ts b/packages/core/agent/src/types.ts index f17c666286..2bde463be5 100644 --- a/packages/core/agent/src/types.ts +++ b/packages/core/agent/src/types.ts @@ -407,7 +407,11 @@ declare module 'cordis' { * or `ctx.agents.resume()` is a new instance: it recomposes, and any * drift lands attributably on the `'resume'` snapshot). Composition runs * outside the step, before the boundary snapshot: a composing listener's - * session append joins the CURRENT request's derived history. + * session append joins the CURRENT request's derived history. A + * composition interrupted by a cancel/dispose landing inside the + * waterfall is discarded — never cached, logged, or sent — and the next + * turn recomposes under a live signal, so an abort-aware listener's + * degraded fallback cannot leak into later requests. * * This is the home for session-stable openers the model must always see * but that must NOT become durable history — a skills catalog, an From 90547f283b2706d5c208e4528d09dd105b4082cf Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Wed, 8 Jul 2026 21:56:28 +0800 Subject: [PATCH 078/232] fix: byte-exact value/error caps + write-callback contract (agent review) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Two [P1] review findings on the worker runtime: - maxValueBytes gated and sliced the rendered fallback by UTF-16 code units, so a multibyte string ("€€€€" under a 4-byte cap) crossed whole and a truncated multibyte rendering could still run ~3x over budget. New truncateUtf8Bytes cuts at code-point boundaries under a real byte budget; prepareValue's fallback and the host's forged-error-text bound both use it, and the VALUE_RENDER_SLACK comment drops its now-obsolete "sliced by characters" wrinkle. - The patched stream write dropped Node's optional encoding/callback arguments, so a program awaiting flush completion (write(chunk, resolve)) hung to the wall ceiling and misreported as a timeout. The shim now fires the callback asynchronously once the chunk is admitted — including for writes the exhausted budget drops. --- .../code-runtime-worker/src/bootstrap.ts | 45 ++++++++++++++-- .../code-runtime-worker/src/index.ts | 9 ++-- .../tests/bootstrap.spec.ts | 51 ++++++++++++++++++- .../code-runtime-worker/tests/runtime.spec.ts | 38 ++++++++++++++ 4 files changed, 132 insertions(+), 11 deletions(-) diff --git a/packages/code-runtime/code-runtime-worker/src/bootstrap.ts b/packages/code-runtime/code-runtime-worker/src/bootstrap.ts index 62374ccaa0..f2e0d343f3 100644 --- a/packages/code-runtime/code-runtime-worker/src/bootstrap.ts +++ b/packages/code-runtime/code-runtime-worker/src/bootstrap.ts @@ -98,6 +98,10 @@ export function makeConsoleShim(logs: LogBuffer): Record<(typeof CONSOLE_LEVELS) * Redirect a stream's `write` into the log buffer (the program-visible * `process.stdout`/`process.stderr` in the real worker), so raw writes land * in emission order alongside console output instead of racing down a pipe. + * The shim keeps Node's `write(chunk[, encoding][, callback])` contract: the + * callback fires asynchronously once the chunk is admitted (a program + * awaiting flush completion must complete, not sit until the wall timeout), + * even for writes the exhausted budget drops. * @param logs - the buffer captured writes are pushed into. * @param stream - the stream whose `write` slot is patched. * @param source - the log source the captured writes are attributed to. @@ -109,8 +113,14 @@ export function captureStreamWrites(logs: LogBuffer, stream: PatchableStream, so // detached, so the unbound-method concern does not apply. // eslint-disable-next-line @typescript-eslint/unbound-method const original = stream.write - stream.write = (chunk: unknown): boolean => { + stream.write = (chunk: unknown, ...rest: unknown[]): boolean => { logs.push({ source, text: typeof chunk === 'string' ? chunk : String(chunk) }) + // Node's optional-encoding shape: the callback is whichever of the next + // two positions holds a function (a non-function there is the encoding). + const callback = [rest[0], rest[1]].find( + (arg): arg is (error?: Error | null) => void => typeof arg === 'function', + ) + if (callback) queueMicrotask(() => { callback(null) }) return true } return () => { stream.write = original } @@ -119,6 +129,28 @@ export function captureStreamWrites(logs: LogBuffer, stream: PatchableStream, so /** Bounded inspect options: deep enough to be useful, bounded so a pathological value cannot explode the rendering. */ const INSPECT_OPTIONS = { depth: 4, maxArrayLength: 100, maxStringLength: 10_000 } as const +/** + * The longest prefix of `text` whose UTF-8 encoding fits `maxBytes`, cut at + * a code-point boundary (never mid-surrogate-pair). The byte caps are BYTE + * caps — `String.prototype.slice` counts UTF-16 code units, up to 3× smaller + * than what a multibyte string actually costs across the boundary. + * @param text - the string to bound. + * @param maxBytes - the UTF-8 byte budget the prefix must fit. + * @returns the prefix (all of `text` when it already fits). + */ +export function truncateUtf8Bytes(text: string, maxBytes: number): string { + if (Buffer.byteLength(text, 'utf8') <= maxBytes) return text + let bytes = 0 + let end = 0 + for (const char of text) { + const cost = Buffer.byteLength(char, 'utf8') + if (bytes + cost > maxBytes) break + bytes += cost + end += char.length + } + return text.slice(0, end) +} + /** * Prepare the program's completion value for the done message: a value whose * MEASURED cross-boundary size fits `maxValueBytes` crosses raw — exact @@ -126,9 +158,10 @@ const INSPECT_OPTIONS = { depth: 4, maxArrayLength: 100, maxStringLength: 10_000 * everything else, so a huge container whose BOUNDED inspect rendering * happens to be small cannot smuggle itself past the cap. Anything else * (non-cloneable, or oversized) is REPLACED by its bounded `util.inspect` - * rendering, truncated with an in-band marker — the seam contract's "a - * non-transferable value is replaced by a string rendering", extended to - * oversized ones so a huge return cannot flood the host. + * rendering, byte-truncated ({@link truncateUtf8Bytes}) with an in-band + * marker — the seam contract's "a non-transferable value is replaced by a + * string rendering", extended to oversized ones so a huge return cannot + * flood the host. * @param value - the program's completion value. * @param maxValueBytes - the byte cap for the value. * @returns the done-message fragment: `{}` for `undefined`, else `{ value }`. @@ -150,7 +183,9 @@ export function prepareValue(value: unknown, maxValueBytes: number): { value?: u if (size !== undefined && size <= maxValueBytes) return { value } } const rendered = typeof value === 'string' ? value : inspect(value, INSPECT_OPTIONS) - const capped = rendered.length > maxValueBytes ? `${rendered.slice(0, maxValueBytes)}… [truncated]` : rendered + const capped = Buffer.byteLength(rendered, 'utf8') > maxValueBytes + ? `${truncateUtf8Bytes(rendered, maxValueBytes)}… [truncated]` + : rendered return { value: capped } } diff --git a/packages/code-runtime/code-runtime-worker/src/index.ts b/packages/code-runtime/code-runtime-worker/src/index.ts index 7749fb0318..f78f06cb0b 100644 --- a/packages/code-runtime/code-runtime-worker/src/index.ts +++ b/packages/code-runtime/code-runtime-worker/src/index.ts @@ -18,7 +18,7 @@ import { Context } from 'cordis' import z from 'schemastery' import { CodeRuntime } from '@deepseek-ai/dsh-code-runtime' import type { CodeBindingFunction, CodeLogEntry, CodeRunFailure, CodeRunRequest, CodeRunResult } from '@deepseek-ai/dsh-code-runtime' -import { prepareValue } from './bootstrap.ts' +import { prepareValue, truncateUtf8Bytes } from './bootstrap.ts' import { logTruncationMarker } from './protocol.ts' import type { ReplyMessage, WorkerBootData, WorkerToHost } from './protocol.ts' @@ -166,9 +166,8 @@ function parseWorkerMessage(raw: unknown): WorkerToHost | undefined { /** * Headroom the host's value re-cap grants over `maxValueBytes`: exactly the * truncation suffix {@link prepareValue} appends, so a value the WORKER - * already capped passes through unchanged instead of being marked twice. - * (A multibyte rendering the worker sliced by characters can still exceed - * this and pick up a second marker — bounded and harmless.) + * already capped (byte-exact prefix + this marker) passes through unchanged + * instead of being marked twice. */ const VALUE_RENDER_SLACK = Buffer.byteLength('… [truncated]', 'utf8') @@ -357,7 +356,7 @@ export class WorkerCodeRuntime extends CodeRuntime { // unchanged (see VALUE_RENDER_SLACK); the error text is bounded too. finish({ ...prepareValue(message.value, this.config.maxValueBytes + VALUE_RENDER_SLACK), - ...message.error ? { error: { kind: 'exception' as const, message: message.error.message.slice(0, this.config.maxValueBytes) } } : {}, + ...message.error ? { error: { kind: 'exception' as const, message: truncateUtf8Bytes(message.error.message, this.config.maxValueBytes) } } : {}, }) } diff --git a/packages/code-runtime/code-runtime-worker/tests/bootstrap.spec.ts b/packages/code-runtime/code-runtime-worker/tests/bootstrap.spec.ts index 685c152b10..e41f4455bb 100644 --- a/packages/code-runtime/code-runtime-worker/tests/bootstrap.spec.ts +++ b/packages/code-runtime/code-runtime-worker/tests/bootstrap.spec.ts @@ -1,6 +1,6 @@ import { describe, expect, it } from 'vitest' import { EventEmitter } from 'node:events' -import { LogBuffer, makeConsoleShim, makeNamespaces, captureStreamWrites, prepareValue, runWorkerMain, wireReplies } from '@deepseek-ai/dsh-code-runtime-worker/src/bootstrap.ts' +import { LogBuffer, makeConsoleShim, makeNamespaces, captureStreamWrites, prepareValue, runWorkerMain, truncateUtf8Bytes, wireReplies } from '@deepseek-ai/dsh-code-runtime-worker/src/bootstrap.ts' import type { BootstrapPort, PatchableStream, PendingCall } from '@deepseek-ai/dsh-code-runtime-worker/src/bootstrap.ts' import type { ReplyMessage, WorkerToHost } from '@deepseek-ai/dsh-code-runtime-worker/src/protocol.ts' import type { CodeLogEntry } from '@deepseek-ai/dsh-code-runtime' @@ -90,6 +90,27 @@ describe('captureStreamWrites', () => { expect(seen[0]).toMatchObject({ source: 'stdout' }) expect(underlying).toBe('after') }) + + it('invokes the write callback asynchronously, in both optional-encoding shapes', async () => { + const buffer = new LogBuffer(1_000, () => {}) + const stream: PatchableStream = { write: () => true } + captureStreamWrites(buffer, stream, 'stdout') + const calls: (Error | null | undefined)[] = [] + stream.write('two-arg', (error?: Error | null) => calls.push(error)) + stream.write('three-arg', 'utf8', (error?: Error | null) => calls.push(error)) + // Node's contract: the callback fires after the write call returns. + expect(calls).toEqual([]) + await new Promise(resolve => stream.write('awaited flush', resolve)) + expect(calls).toEqual([null, null]) + }) + + it('still fires the callback for a write the exhausted budget drops', async () => { + const buffer = new LogBuffer(4, () => {}) + const stream: PatchableStream = { write: () => true } + captureStreamWrites(buffer, stream, 'stdout') + stream.write('this write overflows the budget and is dropped') + await new Promise(resolve => stream.write('also dropped', resolve)) + }) }) describe('prepareValue', () => { @@ -118,6 +139,34 @@ describe('prepareValue', () => { expect(typeof value).toBe('string') expect(value).toContain('more items') }) + + it('caps a multibyte string by UTF-8 bytes, not UTF-16 length', () => { + // 4 code units but 12 UTF-8 bytes: a length-counting cap would pass the + // full string through untruncated. + expect(prepareValue('€€€€', 4)).toEqual({ value: '€… [truncated]' }) + }) + + it('caps a multibyte rendering by UTF-8 bytes too', () => { + // Wire size (24-byte string inside an array) exceeds the cap, so the + // value crosses as its rendering — whose truncation must also be + // byte-exact: "[ '" (3 bytes) + two € (6 bytes) = 9; a third € would + // overflow the 10-byte budget. + expect(prepareValue(['€€€€€€€€'], 10)).toEqual({ value: "[ '€€… [truncated]" }) + }) +}) + +describe('truncateUtf8Bytes', () => { + it('returns a fitting string whole', () => { + expect(truncateUtf8Bytes('fits', 4)).toBe('fits') + }) + + it('cuts at a code-point boundary, never mid-surrogate-pair', () => { + // Each 😀 is one code point, two code units, four UTF-8 bytes: a 5-byte + // budget fits exactly one — and never leaves a lone surrogate behind. + const cut = truncateUtf8Bytes('😀😀', 5) + expect(cut).toBe('😀') + expect(Buffer.byteLength(truncateUtf8Bytes('😀😀', 3), 'utf8')).toBe(0) + }) }) describe('makeNamespaces', () => { diff --git a/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts b/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts index 2d29dc143d..edc2bd1271 100644 --- a/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts +++ b/packages/code-runtime/code-runtime-worker/tests/runtime.spec.ts @@ -221,6 +221,29 @@ describe('WorkerCodeRuntime — budgets and containment (real workers)', () => { expect(result.value).toBe(`${'y'.repeat(64)}… [truncated]`) }) + it('caps a multibyte return value by UTF-8 bytes, not string length', async () => { + // 4 code units, 12 UTF-8 bytes: a length-counting cap would let the full + // string cross. The worker's byte-exact capped rendering then passes the + // host re-cap unchanged (cap + marker is exactly the granted slack). + const { runtime } = await setup({ maxValueBytes: 4 }) + const result = await runtime.run({ program: 'return "€€€€"', bindings: [] }) + expect(result.value).toBe('€… [truncated]') + }) + + it('completes a program that awaits its write callback, capturing the chunk', async () => { + // Node's write(chunk[, encoding][, callback]) contract: dropping the + // callback would leave this promise pending until the wall ceiling and + // misreport a completed program as a timeout. + const { runtime } = await setup({ maxWallMs: 2_000 }) + const result = await runtime.run({ + program: 'await new Promise(resolve => process.stdout.write("flushed", resolve)); return "done"', + bindings: [], + }) + expect(result.error).toBeUndefined() + expect(result.value).toBe('done') + expect(result.logs).toContainEqual({ source: 'stdout', text: 'flushed' }) + }) + it('caps a huge container whose bounded rendering is small (wire size, not rendering, is what counts)', async () => { const { runtime } = await setup() const result = await runtime.run({ program: 'return new Array(50_000).fill(7)', bindings: [] }) @@ -340,6 +363,21 @@ describe('WorkerCodeRuntime — hostile programs (real workers)', () => { expect(result.error).toEqual({ kind: 'exception', message: 'fake failure' }) }) + it('byte-bounds forged multibyte error text at the host', async () => { + // Forged error text bypasses the worker entirely; the host bound is a + // BYTE bound (two € = 6 bytes fit an 8-byte cap, a third would not). + const { runtime } = await setup({ maxValueBytes: 8 }) + const result = await runtime.run({ + program: ` + const { parentPort } = await import('node:worker_threads'); + parentPort.postMessage({ type: 'done', error: { message: '€'.repeat(1000) } }); + for (;;) {} + `, + bindings: [], + }) + expect(result.error).toEqual({ kind: 'exception', message: '€€' }) + }) + it('answers a binding whose resolution cannot be cloned with a failure reply', async () => { const { runtime } = await setup() const result = await runtime.run({ From 1b29273f12a1e3659d9792ee55bca5ce8e2198bf Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Wed, 8 Jul 2026 22:03:27 +0800 Subject: [PATCH 079/232] fix: reach quiescence even when the runtime rejects (agent review) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [P1] review finding: the run-scoped abort + queue drain ran only after runtime.run() FULFILLED, so a backend that starts a binding call and then throws left the sub-dispatch running past run_code's settlement — its tool/code-dispatch event could append after the parent call returned, breaking the drain-before-return contract. The quiescence pair now lives in a finally around runtime.run(); the folded queue tail keeps the drain from masking the thrown error. Pinned by a test whose fake runtime fails mid-flight: pre-fix it returns in milliseconds with the slow tool still running. --- packages/core/tools/src/code-mode.ts | 38 +++++++++++++-------- packages/core/tools/tests/code-mode.spec.ts | 38 +++++++++++++++++++++ 2 files changed, 61 insertions(+), 15 deletions(-) diff --git a/packages/core/tools/src/code-mode.ts b/packages/core/tools/src/code-mode.ts index 970bb6e208..404364d57c 100644 --- a/packages/core/tools/src/code-mode.ts +++ b/packages/core/tools/src/code-mode.ts @@ -250,21 +250,29 @@ export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () => } try { - const result = await runtime.run({ - program: args.code, - bindings: [{ global: 'tools', functions }], - signal: runController.signal, - }) - // Quiescence before returning: fire the run-scoped abort (cancelling - // an in-flight sub-dispatch, abandoning queued ones), then await the - // queue's drain — an aborted sub-call still settles and logs its - // event INSIDE the open turn; nothing can append after we return. - // `queue` is the FOLDED tail (every link swallows its rejection into - // undefined), so this await cannot itself reject — an abandoned - // queued call can never mask the runtime's own `result.error` below; - // rejections surface only on the per-call promises the program holds. - runController.abort('run_code settled') - await queue + let result: CodeRunResult + try { + result = await runtime.run({ + program: args.code, + bindings: [{ global: 'tools', functions }], + signal: runController.signal, + }) + } finally { + // Quiescence before returning, whether the runtime fulfilled or + // REJECTED (a backend that starts a binding call and then throws + // must not leak a live sub-dispatch past this settlement): fire + // the run-scoped abort (cancelling an in-flight sub-dispatch, + // abandoning queued ones), then await the queue's drain — an + // aborted sub-call still settles and logs its event INSIDE the + // open turn; nothing can append after we return. `queue` is the + // FOLDED tail (every link swallows its rejection into undefined), + // so this await cannot itself reject — an abandoned queued call + // can never mask the runtime's own failure, returned or thrown; + // rejections surface only on the per-call promises the program + // holds. + runController.abort('run_code settled') + await queue + } if (result.error) { const logsText = result.logs.length > 0 ? `\nCaptured output:\n${result.logs.map(entry => entry.text).join('\n')}` : '' diff --git a/packages/core/tools/tests/code-mode.spec.ts b/packages/core/tools/tests/code-mode.spec.ts index 7cbceb5361..03afc260ee 100644 --- a/packages/core/tools/tests/code-mode.spec.ts +++ b/packages/core/tools/tests/code-mode.spec.ts @@ -385,6 +385,44 @@ describe('the run_code dispatch bridge', () => { expect(sawAbort).toBe(true) }) + it('a runtime that starts a binding call and then REJECTS still reaches quiescence before returning', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + const { agent, events } = fakeAgent() + let sawAbort = false + let started!: () => void + const inFlight = new Promise((resolve) => { started = resolve }) + ctx.tools.register(defineTool({ + name: 'slow', + description: 'Slow tool observing its signal.', + parameters: { id: { type: 'string', required: true } }, + async execute(args, exec) { + started() + await new Promise((resolve) => { + const timer = setTimeout(resolve, 500) + exec.signal?.addEventListener('abort', () => { sawAbort = true; clearTimeout(timer); resolve() }, { once: true }) + }) + return [{ type: 'text' as const, text: args.id }] + }, + })) + runtime.behavior = async (request) => { + // Start a sub-dispatch, keep its rejection held, and fail the run once + // the tool is genuinely in flight — a seam error AFTER work has begun. + // The bridge's settlement still owes quiescence: without the finally, + // run_code would return now and the slow tool would finish (and log) + // afterwards. + request.bindings[0]!.functions.slow!({ id: 'orphan' }).catch(() => 'held') + await inFlight + throw new Error('backend exploded') + } + const result = await runCode(ctx, 'program', { agent }) + expect(result.isError).toBe(true) + expect((result.content[0] as { text: string }).text).toContain('backend exploded') + // Quiescence held: the in-flight sub-dispatch was aborted and its event + // logged INSIDE the run_code execution, not after it returned. + expect(sawAbort).toBe(true) + expect(events.filter(event => event.type === 'tool/code-dispatch').map(event => (event.data as { name: string }).name)).toEqual(['slow']) + }) + it('runs without an owning agent: dispatches work, event logging is skipped', async () => { const { ctx, runtime } = await setup({ mode: 'code' }) const calls = registerEcho(ctx) From fd1071392c484b97305bb3e2f7b0aabfe28dba4d Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Wed, 8 Jul 2026 22:40:38 +0800 Subject: [PATCH 080/232] docs(compact): sync the compactIfNeeded prose signature with the sessionPrefix parameter The seam gained sessionPrefix between fullSystemPrompt and signal in 18d478bc, but the compact README member table and the compaction core-data-structures page still showed the 3-arg form and listed only agent/system/signal as what pre-step supplies. The generated service catalog was already correct; only these two prose homes drifted. --- docs/core-data-structures/compaction.md | 2 +- packages/compact/compact/README.md | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/core-data-structures/compaction.md b/docs/core-data-structures/compaction.md index 78eb48d38e..2f402be57d 100644 --- a/docs/core-data-structures/compaction.md +++ b/docs/core-data-structures/compaction.md @@ -50,6 +50,6 @@ interface CompactionResult { ## The service -`CompactService` (`ctx.compact`, abstract — defined in [`packages/compact/compact/src/index.ts`](../../packages/compact/compact/src/index.ts)) declares two abstract methods: `compactIfNeeded(agent, fullSystemPrompt, signal)` checks token pressure and compacts an older range if the history is too large (returning `null` when nothing needs it), and `compactRegion(session, start, end, agent, signal?)` forcibly summarizes surface nodes `[start, end]` into a single replacement node. `compactIfNeeded`'s parameters are all required — the loop's `agent/pre-step` checkpoint supplies the agent, the assembled `fullSystemPrompt`, and the turn `signal`. A backend summarizing via `ctx.llm.stream()` must forward `signal` into the call's `GenerateOptions.signal`, so an abort or dispose tears down the in-flight summarization. The entire strategy — token estimation, retention policy, event sequencing, summarization — is a HOW decision owned by the implementation. +`CompactService` (`ctx.compact`, abstract — defined in [`packages/compact/compact/src/index.ts`](../../packages/compact/compact/src/index.ts)) declares two abstract methods: `compactIfNeeded(agent, fullSystemPrompt, sessionPrefix, signal)` checks token pressure and compacts an older range if the history is too large (returning `null` when nothing needs it), and `compactRegion(session, start, end, agent, signal?)` forcibly summarizes surface nodes `[start, end]` into a single replacement node. `compactIfNeeded`'s parameters are all required — the loop's `agent/pre-step` checkpoint supplies the agent, the assembled `fullSystemPrompt`, the instance's composed `sessionPrefix` (request-only messages the derived history omits, so the pressure estimate must count them), and the turn `signal`. A backend summarizing via `ctx.llm.stream()` must forward `signal` into the call's `GenerateOptions.signal`, so an abort or dispose tears down the in-flight summarization. The entire strategy — token estimation, retention policy, event sequencing, summarization — is a HOW decision owned by the implementation. Auto-compaction runs on the serial `agent/pre-step` loop seam (fired once per step, after `turn/start` and BEFORE the step opens and its request history is derived), not the `agent/request` waterfall: compaction mutates the session surface in place — with its log-only `compact/*` records landing cleanly outside any step — and the loop derives the request from the already-compacted surface. Retention is turn-agnostic — the only structural guard is tool-pairing balance (a compacted region's edges are balanced cuts on the surface, so it never splits a step's tool-calls from their results), so a single runaway turn that alone exceeds the window compacts its own early closed steps rather than being retained verbatim. The backend that ships this (`dsh-compact-basic`) documents the retention walk, summary shrink validation, bounded re-compaction, and the crash/recoverable failure taxonomy. diff --git a/packages/compact/compact/README.md b/packages/compact/compact/README.md index 54bdcc7f4e..e817fcfb10 100644 --- a/packages/compact/compact/README.md +++ b/packages/compact/compact/README.md @@ -18,7 +18,7 @@ Both methods are **abstract** — the backend owns the entire strategy (token es | Member | Semantics | |---|---| -| `compactIfNeeded(agent, fullSystemPrompt, signal)` | Estimate the surface-derived history size; if over the backend's threshold, compact an older range via `compactRegion`, keeping recent context intact. Returns the `CompactionResult`, or `null` if nothing needed compacting. All parameters required — the loop's `agent/pre-step` checkpoint supplies the agent, assembled `fullSystemPrompt`, and turn `signal`. A backend's summarization request is a direct `ctx.llm.stream()` call (not a loop step), so per-call interception happens at `llm/stream`. | +| `compactIfNeeded(agent, fullSystemPrompt, sessionPrefix, signal)` | Estimate the surface-derived history size; if over the backend's threshold, compact an older range via `compactRegion`, keeping recent context intact. Returns the `CompactionResult`, or `null` if nothing needed compacting. All parameters required — the loop's `agent/pre-step` checkpoint supplies the agent, assembled `fullSystemPrompt`, composed `sessionPrefix` (request-only messages every request carries but the derived history omits — the pressure estimate must count them), and turn `signal`. A backend's summarization request is a direct `ctx.llm.stream()` call (not a loop step), so per-call interception happens at `llm/stream`. | | `compactRegion(session, start, end, agent, signal?)` | Forcibly summarize surface nodes `[start, end]` (inclusive seqs) into a single replacement node. **Throws** if a compaction is already in progress, if `start`/`end` aren't surface nodes, or if `start` is positioned after `end` on the surface. The range is a SURFACE-POSITION span, not a numeric seq interval — after a prior replace lands a fresh high-seq summary node at the shadowed range's position, surface order no longer tracks seq order. | `compactIfNeeded` takes a required `signal`; `compactRegion`'s is optional. A backend that summarizes via `ctx.llm.stream()` **must** forward it into the call's `GenerateOptions.signal`, so an abort or fiber dispose tears down the in-flight summarization instead of leaving an orphaned model call running past the cancellation. The session being compacted comes from the agent context; the turn that the `compact/*` events belong to is recoverable from the log (the currently-open turn), so the backend stamps it from the log rather than trusting a caller-supplied value. From 32db205c100e9e5a7c8c6a1046f66fbd9c9edcad Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Wed, 8 Jul 2026 23:54:03 +0800 Subject: [PATCH 081/232] feat(scope): dsh-scope scoped-context registration primitive createScope(ctx, key) mints a tagged context over a synchronously-usable no-op-plugin fiber (one fact drives visibility AND lifetime); scopeOf reads the tag through the prototype chain; scopeTarget(base, key) builds the scope-filtered dispatch carrier over cordis Context.filter, composing the base's own filter, branded Scoped and runtime-marked for the dev invariants. Scope.rawDispose exposes the exact cordis disposer so a composite effect can nest the scope's teardown at its yield position. --- docs/config-catalog.md | 1 + docs/module-graph.md | 2 + packages/core/scope/README.md | 20 ++ packages/core/scope/package.json | 30 +++ packages/core/scope/src/index.ts | 237 ++++++++++++++++++++++++ packages/core/scope/tests/scope.spec.ts | 209 +++++++++++++++++++++ packages/core/scope/tsconfig.json | 18 ++ pnpm-lock.yaml | 6 + tsconfig.build.json | 1 + tsconfig.json | 1 + 10 files changed, 525 insertions(+) create mode 100644 packages/core/scope/README.md create mode 100644 packages/core/scope/package.json create mode 100644 packages/core/scope/src/index.ts create mode 100644 packages/core/scope/tests/scope.spec.ts create mode 100644 packages/core/scope/tsconfig.json diff --git a/docs/config-catalog.md b/docs/config-catalog.md index e55066101f..870f57053e 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -815,4 +815,5 @@ Imported as libraries by other packages; a `cordis.yml` cannot load them. - `@deepseek-ai/dsh-app-boot` ([`packages/ui/app-boot/src/index.ts`](../packages/ui/app-boot/src/index.ts)) - `@deepseek-ai/dsh-brand` ([`packages/util/brand/src/index.ts`](../packages/util/brand/src/index.ts)) - `@deepseek-ai/dsh-hook-protocol` ([`packages/hooks/hook-protocol/src/index.ts`](../packages/hooks/hook-protocol/src/index.ts)) +- `@deepseek-ai/dsh-scope` ([`packages/core/scope/src/index.ts`](../packages/core/scope/src/index.ts)) - `@deepseek-ai/dsh-subagent-inprocess` ([`packages/subagent/subagent-inprocess/src/index.ts`](../packages/subagent/subagent-inprocess/src/index.ts)) diff --git a/docs/module-graph.md b/docs/module-graph.md index 5e043d22d4..9461c746d2 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -19,6 +19,7 @@ flowchart TD pkg_agent["agent"] pkg_agent_core["agent-core"] pkg_agent_loop["agent-loop"] + pkg_scope["scope"] pkg_session["session"] pkg_system_prompt["system-prompt"] pkg_tools["tools"] @@ -211,6 +212,7 @@ flowchart TD | Package | Group | Depends on | | --- | --- | --- | | [`brand`](../packages/util/brand) | `util` | — | +| [`scope`](../packages/core/scope) | `core` | — | | [`acp-snapshot`](../packages/support/acp-snapshot) | `support` | — | | [`app-boot`](../packages/ui/app-boot) | `ui` | — | | [`code-runtime`](../packages/code-runtime/code-runtime) | `code-runtime` | — | diff --git a/packages/core/scope/README.md b/packages/core/scope/README.md new file mode 100644 index 0000000000..18961e42fd --- /dev/null +++ b/packages/core/scope/README.md @@ -0,0 +1,20 @@ +# dsh-scope + +Scoped-context registration primitive. `createScope(ctx, key)` mints a Cordis context that TAGS everything registered through it with an opaque `ScopeKey` and OWNS those registrations' lifetime (one backing fiber drives both facts); `scopeOf(ctx)` reads the tag; `scopeTarget(base, key)` builds the dispatch carrier that makes an event scope-filtered — listeners registered through a scoped context fire only for their key's subject, while plain plugin listeners keep firing for every subject. The agent loop is the one scope minter today (one scope per live agent, key = the `Agent` object — the `Agent.ctx` contract in `dsh-agent`), but the mechanism is key-agnostic so packages below the agent layer (`dsh-session`, `dsh-system-prompt`) depend on it without a dependency cycle. + +## Public API + +- `createScope(ctx: Context, key: ScopeKey): Scope` Mint a scope under `ctx`'s fiber. Usable synchronously (effect collection is uid-gated; service resolution falls through to the minting plugin's dependency surface). Throws on a primitive key, or when `ctx`'s fiber is disposing (`INACTIVE_EFFECT`). +- `Scope.ctx` The tagged context: registrations through it are scope-visible AND scope-lifetime. Derived contexts (an `extend`, a fiber mounted under it) inherit the tag; nested scopes shadow (nearest tag wins). +- `Scope.rawDispose` The EXACT Cordis disposer for the backing fiber — a composite (generator) effect yields THIS function to nest the scope's teardown at that yield position (Cordis dedupes nested effects by function identity; yielding a wrapper leaves the scope disposing as a concurrent sibling). +- `Scope.dispose(): Promise` Idempotent, always-awaitable teardown of every registration made through the scope. +- `scopeOf(ctx: Context): ScopeKey | undefined` The tag a context (or any context derived from it) carries; `undefined` = context-global. +- `scopeTarget(base: T, key?: ScopeKey): Scoped` Build the dispatch `thisArg` for a scope-filtered event: composes `base`'s own `Context.filter` with the scope predicate (untagged listener ⇒ admitted; tagged ⇒ admitted iff tag === key; `key === undefined` ⇒ untagged only). Listener `this` stays `base`-shaped. `{ global: true }` listeners bypass filtering (Cordis semantics). +- `Scoped` The compile-time carrier brand: scope-filtered events demand it as their `this` type, so dispatching with a bare subject is a compile error. +- `isScopeCarrier(value)` / `carrierKeyOf(value)` Runtime carrier marks, used by the dev invariants to assert every scope-filtered dispatch carries a carrier keyed to the subject its arguments name. + +## Design contract + +Ownership and visibility derive from ONE fact — which context a registration went through. An explicit `{ scope }` registration parameter could express "visible to X, disposed with Y", which is almost always a bug; the scoped context makes it unrepresentable. Rationale and alternatives: the agent-scoped-registration RFC (`docs/rfc/implemented/architecture/2026-07-08-agent-scoped-registration.md`, landing with this change set). + +Handing out a scoped context hands out the minting plugin's service-resolution capability (resolution walks the minting fiber's dependency chain, not the holder's) — mint scopes from a plugin whose `inject` surface is what scope holders should reach. diff --git a/packages/core/scope/package.json b/packages/core/scope/package.json new file mode 100644 index 0000000000..89c2b4428b --- /dev/null +++ b/packages/core/scope/package.json @@ -0,0 +1,30 @@ +{ + "name": "@deepseek-ai/dsh-scope", + "description": "Scoped-context registration primitive (scope tags, scope-filtered event dispatch) for the DeepSeek Harness", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "cordis": "^4.0.0-rc.6" + }, + "devDependencies": { + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/core/scope/src/index.ts b/packages/core/scope/src/index.ts new file mode 100644 index 0000000000..ceb1cccba9 --- /dev/null +++ b/packages/core/scope/src/index.ts @@ -0,0 +1,237 @@ +/** + * Scoped-context primitive: mint a Cordis context that TAGS everything + * registered through it with an opaque {@link ScopeKey}, and dispatch events so + * listeners registered through such a context fire only for their key's + * subject. Scope-aware registries (`ctx.tools`, `ctx.systemPrompt`) read the + * tag via {@link scopeOf} to file a registration in the right layer; the agent + * loop is the one scope MINTER today (one scope per live agent, key = the + * `Agent` object — see `Agent.ctx` in `@deepseek-ai/dsh-agent`), but the + * mechanism is key-agnostic by design so packages below the agent layer + * (`dsh-session`, `dsh-system-prompt`) can depend on it without a dependency + * cycle. + * + * Ownership and visibility derive from ONE fact — which context a registration + * went through: the scope's fiber owns the disposal (a `ctx.effect()`/ + * `ctx.on()`/registry call through the scoped context unwinds on + * {@link Scope.dispose}, because Cordis routes a service method's `this.ctx` + * to the ACCESSING context), and the tag decides who sees it. Splitting those + * two — an explicit `{ scope }` registration parameter — would let a caller + * express "visible to X, disposed with Y", which is almost always a bug; the + * scoped context makes it unrepresentable. + * + * @module @deepseek-ai/dsh-scope + */ + +import type { Context } from 'cordis' +import { Context as CordisContext, withProps } from 'cordis' + +/** + * The identity a scope is keyed by. Opaque and compared by object identity — + * never inspected. The harness convention: a live `Agent` is the key of its + * own scope, so seam vocabularies that already carry the agent + * (`ToolExecution.agent`, `AssembleContext.scope`) name the layer directly. + */ +export type ScopeKey = object + +/** The context tag {@link createScope} writes and {@link scopeOf} reads (module-private). */ +const kScope = Symbol('dsh.scope') + +/** The carrier mark {@link scopeTarget} writes and {@link carrierKeyOf} reads (module-private). */ +const kCarrier = Symbol('dsh.scope.carrier') + +declare const ScopedBrand: unique symbol + +/** + * A dispatch carrier built by {@link scopeTarget}: structurally the `base` it + * overlays, branded so scope-filtered events can DEMAND a carrier as their + * `this` type — passing a bare subject where a `Scoped` is required is a + * compile error, which is what makes "forgot the carrier" unrepresentable at + * dispatch sites. The brand is compile-time only; {@link isScopeCarrier} is + * the runtime counterpart (used by the dev invariants). + */ +export type Scoped = T & { readonly [ScopedBrand]: 'dsh.scope.carrier' } + +/** + * A minted scope: the tagged context to register through, plus the disposers + * that unwind every registration made through it. + */ +export interface Scope { + /** + * The scoped context. Registrations through it are tagged with the scope's + * key (scope-aware registries file them in that key's layer; `ctx.on` + * listeners fire only for dispatches targeted at that key) and owned by the + * scope's fiber (disposed together on {@link dispose}). Contexts DERIVED + * from it — an `extend`, a fiber mounted under it — inherit the tag through + * the prototype chain. + */ + ctx: Context + /** + * The EXACT disposer Cordis registered on the minting fiber for the scope's + * backing fiber. A composite (generator) effect that owns the scope's + * position in an ordered teardown must yield THIS function: Cordis dedupes a + * nested effect out of the parent's concurrent disposal list by function + * identity, so yielding a wrapper would leave the scope disposing as an + * unordered sibling. Callers outside a composite effect use {@link dispose}. + * @returns the backing fiber's teardown promise (undefined on a repeat call + * — Cordis effect disposers are single-shot). + */ + rawDispose: () => Promise | void + /** + * Unwind the scope: dispose the backing fiber, running every collected + * registration disposer. Idempotent and always awaitable — a repeat call + * resolves immediately (the underlying Cordis disposer is single-shot and + * returns undefined the second time; this wrapper Promise-normalizes it). + * After disposal the scoped context is inert — a further registration + * through it throws Cordis's INACTIVE_EFFECT. + * @returns resolves when every registration's disposer has settled. + */ + dispose(): Promise +} + +/** + * The shared no-op plugin every scope fiber mounts: named so diagnostics read + * `scope` and shared so all scopes join ONE plugin runtime (Cordis deletes the + * runtime record when its last fiber disposes, so idle deployments carry no + * residue). + */ +function scope(): void {} + +/** + * Mint a registration scope for `key` under `ctx`. + * + * Mounts a runtime fiber (`ctx.plugin`) and tags a child of its context with + * `key`. The fiber is usable synchronously — Cordis activates it on a + * microtask, but effect collection is uid-gated (not state-gated) and service + * resolution falls through the pending fiber to the MINTING plugin's + * dependency surface, so a caller may register through {@link Scope.ctx} the + * moment this returns. + * + * Service resolution through the scoped context flows through the minting + * plugin's dependency chain (the fiber walk), regardless of what the eventual + * holder's own fiber injected — handing out the scoped context hands out that + * capability; see `Agent.ctx` in `@deepseek-ai/dsh-agent` for the harness's + * contract. + * @param ctx - the context to mount the scope under; its fiber must be active + * (a disposing owner throws Cordis's INACTIVE_EFFECT), and its plugin's + * `inject` surface is what the scoped context resolves services against. + * @param key - the scope's identity ({@link ScopeKey}); must be an object + * (identity-compared), else this throws. + * @returns the tagged context plus its disposers ({@link Scope}). + */ +export function createScope(ctx: Context, key: ScopeKey): Scope { + // Runtime guard behind the ScopeKey type: callers outside the typechecker + // (yml-configured plugins, JS consumers) can still pass a primitive. + // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition + if (typeof key !== 'object' || key === null) { + throw new TypeError('createScope: key must be an object (scope keys are identity-compared)') + } + const fiber = ctx.plugin(scope) + const scoped: Context = fiber.ctx.extend({ [kScope]: key }) + return { + ctx: scoped, + // fiber.dispose IS the disposer Cordis pushed onto the minting fiber's + // disposable list — the identity a composite effect must yield (see + // Scope.rawDispose). + rawDispose: fiber.dispose, + // Promise.resolve-normalized: a cordis fiber's dispose returns undefined + // on a repeat call (the epoch is already cleared), and Scope.dispose + // promises an awaitable on every call. + dispose: () => Promise.resolve(fiber.dispose()), + } +} + +/** + * Read the scope key a context is tagged with, or `undefined` for an untagged + * (context-global) context. Walks the prototype chain, so any context DERIVED + * from a scoped context — service shadows, `extend`s, fibers mounted under it + * — reads as that scope; with nested scopes the nearest tag wins. + * @param ctx - the context to inspect (typically a registry method's + * `this.ctx`, i.e. the ACCESSING context). + * @returns the key given to {@link createScope}, or `undefined` when the + * context is not derived from any scope. + */ +export function scopeOf(ctx: Context): ScopeKey | undefined { + // A plain (possibly proxied) property read: symbols bypass the Cordis + // context proxy's service resolution, and Reflect walks the prototype chain. + return (ctx as Context & { [kScope]?: ScopeKey })[kScope] +} + +/** + * Build the dispatch carrier for a scope-filtered event: `base` overlaid with + * a `Context.filter` that admits a listener iff + * + * - its registering context is UNTAGGED (a context-global listener — the + * compatibility default: plain plugin listeners see every subject), or + * - its tag IS `key` (a scoped listener seeing exactly its own subject), + * + * AND `base`'s own filter (a Cordis `Service`'s isolation check) also admits + * it. Dispatching with `key === undefined` — a subject-less dispatch, e.g. a + * tool call with no calling agent or a bare (agent-less) session's events — + * admits only untagged listeners: a scoped listener never fires for someone + * else's (or nobody's) subject. Listeners registered `{ global: true }` + * bypass all filtering (Cordis semantics). + * + * Use it as the `thisArg` of the dispatch: + * `ctx.waterfall(scopeTarget(this, exec.agent), 'tools/pre-execute', …)`. The + * carrier is a proxy over `base` — listener `this` stays `base`-shaped, but + * identity-comparing `this` against the subject is not supported; the subject + * always travels in the event's arguments. The returned carrier is branded + * {@link Scoped} and runtime-marked ({@link isScopeCarrier} / + * {@link carrierKeyOf}) so both the type system and the dev invariants can + * tell a carrier from a bare subject. + * @param base - the object the event is dispatched on behalf of (the owning + * service, or the subject agent itself); its own `Context.filter` is + * preserved and composed. + * @param key - the subject's scope key, or `undefined` for a subject-less + * dispatch. + * @returns the carrier to pass as the dispatch `thisArg`. + */ +export function scopeTarget(base: T, key: ScopeKey | undefined): Scoped { + const baseFilter = (base as { [CordisContext.filter]?: (ctx: Context) => boolean })[CordisContext.filter] + const filter = (ctx: Context): boolean => { + if (baseFilter && !baseFilter.call(base, ctx)) return false + const tag = scopeOf(ctx) + return tag === undefined || tag === key + } + // withProps overlays own-property reads; the symbol-keyed props have no + // structural overlap with T. withProps is typed `any` upstream (a generic + // proxy helper); the carrier is structurally the same T it overlays plus + // the compile-time brand, so pin the type via the return annotation. + // eslint-disable-next-line @typescript-eslint/no-unsafe-return + return withProps(base, { + [CordisContext.filter]: filter, + [kCarrier]: { key }, + }) +} + +/** + * Whether `value` is a carrier built by {@link scopeTarget} — the runtime + * counterpart of the {@link Scoped} brand, used by the dev invariants to + * assert that a scope-filtered event was dispatched with a carrier and not a + * bare subject. + * @param value - the dispatch `thisArg` to test. + * @returns true iff `value` came from {@link scopeTarget}. + */ +export function isScopeCarrier(value: unknown): value is Scoped { + if (typeof value !== 'object' || value === null) return false + // A property READ, not an `in` check: withProps overlays props via get/set + // traps only (no `has` trap), so `kCarrier in carrier` would fall through to + // the wrapped base and always answer false. + return (value as { [kCarrier]?: { key: ScopeKey | undefined } })[kCarrier] !== undefined +} + +/** + * The scope key a carrier was built for — `undefined` for a subject-less + * carrier, and also `undefined` for a non-carrier (pair with + * {@link isScopeCarrier} when the distinction matters). The dev invariants + * use it to assert the carrier's key IS the subject the event's arguments + * name. + * @param value - the dispatch `thisArg` to read. + * @returns the `key` given to {@link scopeTarget}, or `undefined`. + */ +export function carrierKeyOf(value: unknown): ScopeKey | undefined { + if (!isScopeCarrier(value)) return undefined + // Optional-prop cast: the guard proves the mark is present at runtime, but + // the Scoped<> brand carries no structural kCarrier member to narrow from. + return (value as { [kCarrier]?: { key: ScopeKey | undefined } })[kCarrier]?.key +} diff --git a/packages/core/scope/tests/scope.spec.ts b/packages/core/scope/tests/scope.spec.ts new file mode 100644 index 0000000000..5350a539f0 --- /dev/null +++ b/packages/core/scope/tests/scope.spec.ts @@ -0,0 +1,209 @@ +import { describe, expect, expectTypeOf, it } from 'vitest' +import { Context } from 'cordis' +import { carrierKeyOf, createScope, isScopeCarrier, scopeOf, scopeTarget } from '@deepseek-ai/dsh-scope' +import type { Scope, ScopeKey, Scoped } from '@deepseek-ai/dsh-scope' + +declare module 'cordis' { + interface Events { + /** + * Test-only event for exercising scope-filtered dispatch. + * @param value - opaque payload recorded by listeners. + * @mode emit + */ + 'scope-test/ping'(value: string): void + /** + * Test-only waterfall for exercising carrier `this` shape. + * @param value - seed value listeners may wrap. + * @mode waterfall + */ + 'scope-test/echo'(value: string, next: () => string): string + } +} + +/** Mount a host plugin and mint a scope inside it, returning both. */ +async function mintScope(ctx: Context, key: object): Promise { + let scope!: Scope + await ctx.plugin((inner: Context) => { + scope = createScope(inner, key) + }) + return scope +} + +describe('createScope', () => { + it('rejects a primitive key at runtime (identity-compared keys must be objects)', () => { + const ctx = new Context() + // Typed through `unknown` so the ScopeKey type cannot argue the assertion + // away: this test exercises exactly the callers the typechecker misses. + const badKeys: unknown[] = ['k', null] + for (const bad of badKeys) { + expect(() => createScope(ctx, bad as ScopeKey)).toThrow(/must be an object/) + } + }) + + it('tags the scoped context, readable through derivations (nearest tag wins)', async () => { + const ctx = new Context() + const key = { name: 'a' } + const inner = { name: 'a.inner' } + const scope = await mintScope(ctx, key) + + expect(scopeOf(scope.ctx)).toBe(key) + // An extend of the scoped context inherits the tag through the prototype chain. + expect(scopeOf(scope.ctx.extend({}))).toBe(key) + // A plain context carries no tag. + expect(scopeOf(ctx)).toBeUndefined() + // A fiber mounted UNDER the scoped context reads as that scope… + let mountedCtx!: Context + await scope.ctx.plugin((c: Context) => { mountedCtx = c }) + expect(scopeOf(mountedCtx)).toBe(key) + // …and a nested scope shadows the outer tag (nearest wins). + const nested = createScope(scope.ctx, inner) + expect(scopeOf(nested.ctx)).toBe(inner) + }) + + it('is usable synchronously: registrations land before the fiber activates', async () => { + const ctx = new Context() + const events: string[] = [] + await ctx.plugin((inner: Context) => { + const scope = createScope(inner, { name: 'sync' }) + // Same tick as createScope — no await between mint and use. + scope.ctx.effect(() => () => void events.push('effect-disposed')) + scope.ctx.on('scope-test/ping', value => void events.push(`heard:${value}`)) + events.push('registered') + }) + ctx.emit(scopeTarget(ctx, undefined), 'scope-test/ping', 'nobody') + expect(events).toEqual(['registered']) + }) + + it('dispose() unwinds registrations, is idempotent, and inerts the context', async () => { + const ctx = new Context() + const scope = await mintScope(ctx, { name: 'd' }) + const order: string[] = [] + scope.ctx.effect(() => () => void order.push('a')) + scope.ctx.effect(() => () => void order.push('b')) + + await scope.dispose() + expect(order).toEqual(['b', 'a']) // LIFO within the scope fiber + + // Repeat dispose: the underlying cordis disposer returns undefined; the + // wrapper still resolves. + await expect(scope.dispose()).resolves.toBeUndefined() + // Registration through a disposed scope throws INACTIVE_EFFECT. + expect(() => scope.ctx.effect(() => () => {})).toThrow(/inactive context/) + }) + + it('rawDispose is the exact cordis disposer: yielding it nests the scope at its position', async () => { + const ctx = new Context() + const order: string[] = [] + let composite!: () => Promise | void + await ctx.plugin((inner: Context) => { + composite = inner.effect(function* () { + yield () => void order.push('outermost') // disposed LAST + const scope = createScope(inner, { name: 'nested' }) + scope.ctx.effect(() => () => void order.push('scope-registration')) + yield scope.rawDispose // disposed SECOND — nested by identity + yield () => void order.push('innermost') // disposed FIRST + }) + }) + await composite() + // The scope disposed exactly at its yield position (between the two + // neighbours), not as a concurrent sibling of the composite. + expect(order).toEqual(['innermost', 'scope-registration', 'outermost']) + }) +}) + +describe('scopeTarget dispatch filtering', () => { + it('scoped listeners hear only their key; untagged listeners hear everything', async () => { + const ctx = new Context() + const keyA = { name: 'A' } + const keyB = { name: 'B' } + const scopeA = await mintScope(ctx, keyA) + const scopeB = await mintScope(ctx, keyB) + + const heard: string[] = [] + ctx.on('scope-test/ping', value => void heard.push(`global:${value}`)) + scopeA.ctx.on('scope-test/ping', value => void heard.push(`A:${value}`)) + scopeB.ctx.on('scope-test/ping', value => void heard.push(`B:${value}`)) + + ctx.emit(scopeTarget(ctx, keyA), 'scope-test/ping', 'to-A') + ctx.emit(scopeTarget(ctx, keyB), 'scope-test/ping', 'to-B') + ctx.emit(scopeTarget(ctx, undefined), 'scope-test/ping', 'to-nobody') + + expect(heard).toEqual([ + 'global:to-A', 'A:to-A', + 'global:to-B', 'B:to-B', + 'global:to-nobody', + ]) + }) + + it('{ global: true } listeners bypass scope filtering entirely', async () => { + const ctx = new Context() + const keyA = { name: 'A' } + const scopeA = await mintScope(ctx, keyA) + const heard: string[] = [] + scopeA.ctx.on('scope-test/ping', value => void heard.push(`escape:${value}`), { global: true }) + + ctx.emit(scopeTarget(ctx, { name: 'other' }), 'scope-test/ping', 'foreign') + ctx.emit(scopeTarget(ctx, undefined), 'scope-test/ping', 'nobody') + expect(heard).toEqual(['escape:foreign', 'escape:nobody']) + }) + + it("composes the base's own Context.filter (a rejecting base filter wins)", async () => { + const ctx = new Context() + const keyA = { name: 'A' } + const scopeA = await mintScope(ctx, keyA) + const heard: string[] = [] + ctx.on('scope-test/ping', value => void heard.push(`global:${value}`)) + scopeA.ctx.on('scope-test/ping', value => void heard.push(`A:${value}`)) + + // A base whose own filter rejects every listener context: nothing fires, + // scoped or not — the scope predicate never overrides the base's veto. + const vetoBase = { [Context.filter]: () => false } + ctx.emit(scopeTarget(vetoBase, keyA), 'scope-test/ping', 'vetoed') + expect(heard).toEqual([]) + + // A base whose filter accepts delegates to the scope predicate. + const openBase = { [Context.filter]: () => true } + ctx.emit(scopeTarget(openBase, keyA), 'scope-test/ping', 'open') + expect(heard).toEqual(['global:open', 'A:open']) + }) + + it('keeps listener `this` base-shaped through the carrier (waterfall)', async () => { + const ctx = new Context() + const base = { label: 'the-base' } + let seenLabel: string | undefined + ctx.on('scope-test/echo', function (this: { label: string }, value, next) { + seenLabel = this.label + return `${next()}+${value}` + }) + const result = ctx.waterfall(scopeTarget(base, undefined), 'scope-test/echo', 'v', () => 'seed') + expect(result).toBe('seed+v') + expect(seenLabel).toBe('the-base') + }) +}) + +describe('carrier marks', () => { + it('isScopeCarrier / carrierKeyOf distinguish carriers, keys, and bare subjects', () => { + const base = { name: 'base' } + const key = { name: 'key' } + const keyed = scopeTarget(base, key) + const subjectless = scopeTarget(base, undefined) + + expect(isScopeCarrier(keyed)).toBe(true) + expect(carrierKeyOf(keyed)).toBe(key) + expect(isScopeCarrier(subjectless)).toBe(true) + expect(carrierKeyOf(subjectless)).toBeUndefined() + + expect(isScopeCarrier(base)).toBe(false) + expect(carrierKeyOf(base)).toBeUndefined() + expect(isScopeCarrier(null)).toBe(false) + expect(isScopeCarrier('x')).toBe(false) + }) + + it('brands the carrier type (compile-time)', () => { + const base = { name: 'base' } + const carrier = scopeTarget(base, undefined) + expectTypeOf(carrier).toExtend>() + // A bare subject is NOT assignable where a carrier is demanded. + expectTypeOf(base).not.toExtend>() + }) +}) diff --git a/packages/core/scope/tsconfig.json b/packages/core/scope/tsconfig.json new file mode 100644 index 0000000000..754725418e --- /dev/null +++ b/packages/core/scope/tsconfig.json @@ -0,0 +1,18 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + } + ] +} diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 32ffa0d389..8251dc62e9 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -264,6 +264,12 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/core/scope: + devDependencies: + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/core/session: devDependencies: '@deepseek-ai/dsh-brand': diff --git a/tsconfig.build.json b/tsconfig.build.json index 3d99ad4e28..b2cb30885d 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -13,6 +13,7 @@ { "path": "./packages/util/brand" }, { "path": "./packages/llm/llm" }, { "path": "./packages/core/session" }, + { "path": "./packages/core/scope" }, { "path": "./packages/session-persistence/session-persistence" }, { "path": "./packages/session-persistence/session-persistence-jsonl" }, { "path": "./packages/session-persistence/session-persistence-sqlite" }, diff --git a/tsconfig.json b/tsconfig.json index 2091283c93..24e81fac15 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -24,6 +24,7 @@ { "path": "./packages/util/brand" }, { "path": "./packages/llm/llm" }, { "path": "./packages/core/session" }, + { "path": "./packages/core/scope" }, { "path": "./packages/session-persistence/session-persistence" }, { "path": "./packages/session-persistence/session-persistence-jsonl" }, { "path": "./packages/session-persistence/session-persistence-sqlite" }, From 064d1c4ce16ce8184b99064c1656de9dfb8f0c88 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 00:38:21 +0800 Subject: [PATCH 082/232] docs: state advisory typing in the worker row (review) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A reviewer read "TypeScript via host-side type-strip" and reasonably asked what typing buys if nothing checks it — the group README never said the annotations are advisory by design. The row now states it; the rationale stays in the RFC and the enforcement story (per-dispatch validateArgs) in the dsh-tools README. --- packages/code-runtime/README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/packages/code-runtime/README.md b/packages/code-runtime/README.md index b98baa43e6..0310a57b1a 100644 --- a/packages/code-runtime/README.md +++ b/packages/code-runtime/README.md @@ -5,6 +5,6 @@ The code-execution capability seam (see [capability seams](../../docs/rfc/implem | Package | Role | ctx key | |---|---|---| | `code-runtime/` | Abstract code-execution seam (interface + vocabulary) | `ctx.codeRuntime` | -| [`code-runtime-worker/`](code-runtime-worker/README.md) | Worker-thread backend: fresh worker per run, TypeScript via host-side type-strip, port-bridged bindings, budget/heap containment | registers `ctx.codeRuntime` | +| [`code-runtime-worker/`](code-runtime-worker/README.md) | Worker-thread backend: fresh worker per run, TypeScript via host-side type-strip (annotations advisory, never type-checked), port-bridged bindings, budget/heap containment | registers `ctx.codeRuntime` | The interface lives at `code-runtime/code-runtime/`; the shipped backend at `code-runtime/code-runtime-worker/`. Backends differ by execution substrate (worker thread, process, container) and by source language — both readonly descriptors on the service — and register `ctx.codeRuntime` without touching the interface or its consumer; that split is what makes a hardened backend a drop-in later. From f2c333e51031c4db7719c12e71c8cc4dde32f8fe Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Thu, 9 Jul 2026 00:40:57 +0800 Subject: [PATCH 083/232] docs(rfc): record the session-prefix decision MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The seam shipped without its own RFC — the reconstructable-requests RFC was amended with the mechanics, but the decision record (why a compose-once frozen prefix, and what the per-request before/after shape, a system-prompt section, a durable history opener, per-turn composition, and a dedicated session event each lost to) had no home. Implemented lifecycle, feature class, dated to the first commit of the work. --- docs/rfc/INDEX.md | 1 + .../feature/2026-07-07-session-prefix.md | 42 +++++++++++++++++++ 2 files changed, 43 insertions(+) create mode 100644 docs/rfc/implemented/feature/2026-07-07-session-prefix.md diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index b746e7e1f8..4d784ba3e5 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -62,6 +62,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [SessionStore fork API](implemented/feature/2026-06-30-session-store-fork-api.md) | 2026-06-30 | | [Subagent lifecycle enrichment — lastAssistantMessage (observe-only)](implemented/feature/2026-06-30-subagent-observe-enrich.md) | 2026-06-30 | | [Explicit model-facing tool order](implemented/feature/2026-07-06-explicit-tool-order.md) | 2026-07-06 | +| [The session prefix — request-only messages in front of the derived history](implemented/feature/2026-07-07-session-prefix.md) | 2026-07-07 | | [Repeat-tool-call guard plugin](implemented/feature/2026-07-08-repeat-tool-guard.md) | 2026-07-08 | ### Simplification diff --git a/docs/rfc/implemented/feature/2026-07-07-session-prefix.md b/docs/rfc/implemented/feature/2026-07-07-session-prefix.md new file mode 100644 index 0000000000..6f81d12407 --- /dev/null +++ b/docs/rfc/implemented/feature/2026-07-07-session-prefix.md @@ -0,0 +1,42 @@ +# RFC: The session prefix — request-only messages in front of the derived history + +Status: implemented + +## Problem + +A plugin often owns a session-stable opener the model must always see — a skills catalog, an AGENTS.md digest, a workspace baseline. Before this seam the harness offered two homes, and both are wrong for that content. The system prompt is one rendered string: message-shaped content (a user-role `` envelope, a multi-message primer) does not fit it, and providers weight conversation messages differently from system text. Durable history (`agent.inject()`, a `context/message` at session start) makes the opener permanent: every `deriveMessages()` consumer replays it, the compaction retention walk owns it, forks bake it in stale, and a resume cannot refresh it — a catalog captured at session birth outlives the world it described. + +The obvious third option — let a plugin edit the request's `messages` on the way out — is banned by [the reconstructable-requests RFC](../architecture/2026-07-05-reconstructable-requests.md): every loop-built request is a pure function of the session log, so whatever channel carries the opener must log exactly what it sends. What was missing was a request-only message channel with a durable record. + +## Decision + +`agent/session-prefix` is a waterfall on the agent event map ([`packages/core/agent/src/types.ts`](../../../../packages/core/agent/src/types.ts)): listeners receive a frozen empty seed and return an extension (the canonical contribution is a prepend, `[mine, ...await next()]`, which yields registration order on the wire). The loop ([`packages/core/agent-loop/src/loop.ts`](../../../../packages/core/agent-loop/src/loop.ts)) fires it once per loop instance, lazily before the instance's first `agent/pre-step`; the composed list is deep-cloned, deep-frozen, cached on the instance, and placed in front of the ENTIRE derived history — directly after the provider's system slot — on every request the instance sends ([wire order](../../../core-data-structures/core.md#the-request-envelope-llmcallconfig-and-the-logged-header)). + +Three properties carry the design: + +- **Request-only, header-logged.** `deriveMessages()` never returns the prefix; its one durable record is `EpochHeader.messagePrefix` on the instance's anchoring `request/header` snapshot — the channel the reconstructable-requests RFC already owns for the request's non-history half, so no new session event exists. The dev invariant ([dsh-invariants](../../../../packages/support/invariants/src/index.ts)) recomputes `messagePrefix + boundary derivation` against every loop-built request; an unlogged prefix cannot reach the wire. +- **Frozen per instance.** Reuse is structural, not disciplined: the cached product cannot change mid-session, so the provider's prompt cache holds by construction and the prefix extends the cacheable region at zero marginal cost per step. A process restart or `ctx.agents.resume()` is a new instance: it recomposes, and any drift lands attributably on the `'resume'` header snapshot. This is the routing rule the seam creates: session-frozen openers ride the prefix; content that changes mid-session rides the append-only history channels (`agent.inject()`, a `tools/post-execute` decision's `additionalContext`, prompt-submit `additionalContext` — [the interception-seams RFC](2026-06-30-interception-seams.md)), each a durable `context/message` paid once and prefix-cached thereafter. +- **Composed before the pressure gate.** Composition precedes the instance's first `agent/pre-step`, and the seam hands the composed value through: `agent/pre-step` carries a `sessionPrefix` parameter and `CompactService.compactIfNeeded(agent, fullSystemPrompt, sessionPrefix, signal)` counts it in its token-pressure estimate — a gate reading the previous instance's folded prefix instead would under-gate a resumed or forked instance whose contributor grew, skipping compaction and shipping an over-window first request. A composition interrupted by a cancel/dispose landing inside the waterfall is discarded, never cached: an abort-aware listener's degraded fallback cannot leak into later requests, and the next turn recomposes under a live signal. + +Because composition runs before the boundary snapshot, a composing listener's session append joins the CURRENT request's derived history. Compaction structurally cannot touch the prefix (or the system prompt): it rewrites surface nodes, and header state never enters the surface. + +## Testing + +**Unit** — [interception.spec.ts](../../../../packages/core/agent-loop/tests/interception.spec.ts) pins compose-once across turns and steps (one composition, zero `request/header-delta`s), canonical prepend ordering, empty-prefix omission from the header, the frozen seed (in-place push throws), held-reference mutation immunity, and composition-precedes-pre-step with the seam receiving the composed value; [cancel.spec.ts](../../../../packages/core/agent-loop/tests/cancel.spec.ts) pins cancel/dispose landing inside the composition window and the discard-and-recompose stale-cache guard; dsh-session codec tests cover the `messagePrefix` fold/diff/apply arms (empty ≡ absent); dsh-invariants tests pin the `messagePrefix + derivation` equation; dsh-compact-basic tests pin that the pressure estimate counts the handed prefix. **Snapshot** — the acp-snapshot normalizer scrubs header prefixes to count-preserving `{{messagePrefix}}` tokens (unit-covered in dsh-acp-snapshot); header content itself is pinned per [the pinned-header scenario RFC](../testing/2026-07-06-pin-request-header-content-in-one-scenario.md), and the example tree loads no prefix contributor, so live goldens stay prefix-free. **e2e** — none prefix-specific: the seam is provider-independent and deterministic; the with-key cache measurement in [request-cache.e2e.ts](../../../../packages/core/agent-loop/tests/request-cache.e2e.ts) already proves the cacheable-prefix economics the design rests on. + +## Alternatives considered + +- **Per-request `before`/`after` slots recomputed every step** (the shape first proposed: a waterfall firing on every request, contributing frozen `before` messages ahead of the history and fresh `after` messages behind it) — rejected. A per-step `before` recompose invites silent drift — nothing anchors it to the log short of logging a header delta per step — and an `after` slot sits behind the growing history, so its tokens re-pay on every request and everything after it is uncacheable. Measured against the alternatives, every current update pattern is served cheaper by a durable append (paid once, cache-read thereafter), and the only content with no home was the session-stable opener — which wants freezing, not recomputation. +- **A system-prompt section** (`system-prompt/assemble`) — rejected for this content: the assembly renders to the single `system` string, so message-shaped openers do not fit, and the system prompt is deliberately re-assembled per step (with header deltas when it changes) while the opener wants instance-frozen semantics. +- **A durable history opener** (`inject()` at session start) — rejected: permanent history is the failure mode in the problem statement — replayed everywhere, compactable, stale across resumes. +- **Compose per turn instead of per instance** — rejected: a turn-boundary recompose either desyncs silently from the log or forces a header delta per change, and it busts the provider cache exactly as often as it fires; the legitimate refresh point is the instance boundary, where the `'resume'` snapshot already records drift attributably. +- **Compose lazily at the first request and let compaction read the folded header** (the shape as first merged) — superseded in review: the fold matches the live prefix only from the instance's second request on, so on a resumed/forked instance's first step the pressure gate read the PREVIOUS instance's prefix and could under-gate. Composing before the first pre-step and handing the live value through the seam makes the estimate exact at every step. +- **A dedicated session event carrying the prefix** — rejected: the header events are the request's non-history record by design; a second event would be a second home for the same fact and another codec to keep total. + +## Consequences + +- `agent/pre-step` and `CompactService.compactIfNeeded` carry a `sessionPrefix` parameter: every pre-step listener and compaction backend sees the real per-instance value (all in-repo implementations updated in the same change, per the pre-release stance). +- A contributor whose content changes mid-session is not re-read until the next instance — by design. A deployment needing mid-session catalog updates routes the change notice through the append-only history channels and pays one durable `context/message`. +- The dropped `after` slot leaves no request-only channel near the request tail; nothing in the repo needs one, and adding it back would re-open the every-step re-pay cost the design exists to avoid. +- The `request/header-delta` `messagePrefix` arm (whole-array replacement, empty array encoding transition to absence) exists for codec totality; the loop never exercises it, because the cached prefix cannot change within an instance. +- An empty composition is canonical absence: no-contributor deployments log no extra header bytes and their requests are the bare derivation. From 56091d5b5d126cc2b21b57fef93b299143db6f81 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Thu, 9 Jul 2026 00:40:13 +0800 Subject: [PATCH 084/232] fix review findings: keep ask-user opt-in for acp app --- docs/config-catalog.md | 2 +- docs/module-graph.md | 3 +-- .../rfc/implemented/feature/2026-06-25-ask-user-question.md | 2 +- examples/acp-agent/tests/snapshots/text-turn/session.jsonl | 2 +- packages/ui/acp-agent/README.md | 6 +++--- packages/ui/acp-agent/package.json | 2 -- packages/ui/acp-agent/src/index.ts | 2 -- packages/ui/acp-agent/tests/acp-agent.spec.ts | 4 ++-- pnpm-lock.yaml | 3 --- 9 files changed, 9 insertions(+), 17 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 54c3830761..da05f3c2bb 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -56,7 +56,7 @@ export interface Config { } ``` -Source: [`packages/ui/acp-agent/src/index.ts:51`](../packages/ui/acp-agent/src/index.ts) +Source: [`packages/ui/acp-agent/src/index.ts:50`](../packages/ui/acp-agent/src/index.ts) ## `@deepseek-ai/dsh-agent-core` diff --git a/docs/module-graph.md b/docs/module-graph.md index 140449870c..2cd5fafc20 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -213,7 +213,6 @@ flowchart TD pkg_acp_agent --> pkg_agent_core pkg_acp_agent --> pkg_app_boot pkg_acp_agent --> pkg_session_persistence_jsonl - pkg_acp_agent --> pkg_tool_ask_user pkg_acp_agent --> pkg_user_interaction pkg_stdio_agent --> pkg_agent pkg_stdio_agent --> pkg_agent_core @@ -275,5 +274,5 @@ flowchart TD | [`subagent-mock`](../packages/support/subagent-mock) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent) | | [`subagent-fork`](../packages/subagent/subagent-fork) | `subagent` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | [`subagent-spawn`](../packages/subagent/subagent-spawn) | `subagent` | [`subagent`](../packages/subagent/subagent), [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | -| [`acp-agent`](../packages/ui/acp-agent) | `ui` | [`acp`](../packages/ui/acp), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`tool-ask-user`](../packages/ui/tool-ask-user), [`user-interaction`](../packages/core/user-interaction) | +| [`acp-agent`](../packages/ui/acp-agent) | `ui` | [`acp`](../packages/ui/acp), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`user-interaction`](../packages/core/user-interaction) | | [`stdio-agent`](../packages/ui/stdio-agent) | `ui` | [`agent`](../packages/core/agent), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`tool-ask-user`](../packages/ui/tool-ask-user), [`user-interaction`](../packages/core/user-interaction) | diff --git a/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md b/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md index 04d183aa9c..bc041cabc3 100644 --- a/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md +++ b/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md @@ -42,7 +42,7 @@ ACP elicitation is currently marked unstable in the SDK. The fallback is still s The feature gives the model a powerful pause primitive, so prompt guidance matters. The tool description tells the model to ask concise questions and use options when possible. Product policy can later wrap `tools/execute` to restrict when the tool is allowed, but the loop should not special-case it. -`dsh-tool-ask-user` lives in `packages/ui` even though it is a tool, because it is a product-facing human-interaction affordance rather than providerless loop infrastructure. The core package remains only the abstract seam; `agent-core` does not load the tool. Front-door app packages such as `stdio-agent` and `acp-agent` opt into it alongside their UI provider. +`dsh-tool-ask-user` lives in `packages/ui` even though it is a tool, because it is a product-facing human-interaction affordance rather than providerless loop infrastructure. The core package remains only the abstract seam; `agent-core` does not load the tool. `stdio-agent` opts into it alongside its readline provider. `acp-agent` keeps only the `userInteraction` seam/provider by default: ACP elicitation support is still client-dependent, so an ACP leaf must opt into the model-facing tool deliberately once its client can complete elicitation requests. ## Testing diff --git a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl index f717b9071f..2a71c46b18 100644 --- a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783279329596,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783279329596,"data":{"content":[{"type":"text","text":"Reply with exactly the word: PONG. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783279329598,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783279329598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-q0sbE9.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"ask_user_question","description":"Ask the user a concise question when you need confirmation, a choice, or missing information before proceeding. Send one or more questions, each with a stable id that will be echoed in the answer.","parameters":{"type":"object","properties":{"questions":{"type":"array","description":"Questions to ask the user before continuing.","items":{"type":"object","properties":{"id":{"type":"string","description":"Stable id for this question; echoed in the answer."},"question":{"type":"string","description":"The specific question to ask the user."},"header":{"type":"string","description":"Optional short heading for the question, such as \"Confirm\" or \"Choose Mode\"."},"options":{"type":"array","description":"Optional choices to show the user.","items":{"type":"object","properties":{"label":{"type":"string","description":"Short user-facing option label."},"description":{"type":"string","description":"One sentence explaining the tradeoff or impact."}},"required":["label"]}},"multi_select":{"type":"boolean","description":"Whether the user may select more than one option. Defaults to false."}},"required":["id","question"]}}},"required":["questions"]}},{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783279329598,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-q0sbE9.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783279330062,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783279330062,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783279330154,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/packages/ui/acp-agent/README.md b/packages/ui/acp-agent/README.md index 0e1554d0c6..ee3a995eaa 100644 --- a/packages/ui/acp-agent/README.md +++ b/packages/ui/acp-agent/README.md @@ -11,10 +11,10 @@ stdout is the ACP JSON-RPC channel, so the cluster is defined as much by what it | Plugin | Why | |---|---| | `@deepseek-ai/dsh-agent-core` | the spine, pre-creating **no** agents (ACP `session/new` creates them on demand) | -| `@deepseek-ai/dsh-user-interaction` | the human question/answer seam used by confirmation tools | -| `@deepseek-ai/dsh-tool-ask-user` | the model-facing `ask_user_question` tool | +| `@deepseek-ai/dsh-user-interaction` | the human question/answer seam used by clients that can complete ACP elicitation requests | | `@deepseek-ai/dsh-session-persistence-jsonl` | durable JSONL session log (the bridge advertises `loadSession`) | -| `@deepseek-ai/dsh-acp` | the bridge that owns stdout for JSON-RPC and provides ACP-backed user answers | +| `@deepseek-ai/dsh-acp` | the bridge that owns stdout for JSON-RPC and provides ACP-backed user answers when a leaf explicitly exposes a user-question tool | +| ~~`@deepseek-ai/dsh-tool-ask-user`~~ | **omitted by default** — ACP elicitation support is still client-dependent, so leaves must opt in deliberately | | ~~console logger~~ | **omitted** — it writes to stdout and would corrupt the protocol frames ([the stdout-purity footgun](../acp/README.md)) | | ~~`hmr`~~ | **omitted** — the editor owns the subprocess | diff --git a/packages/ui/acp-agent/package.json b/packages/ui/acp-agent/package.json index 215113461b..51eb0ea3b1 100644 --- a/packages/ui/acp-agent/package.json +++ b/packages/ui/acp-agent/package.json @@ -36,7 +36,6 @@ "@deepseek-ai/dsh-acp": "^0.0.1", "@deepseek-ai/dsh-agent-core": "^0.0.1", "@deepseek-ai/dsh-session-persistence-jsonl": "^0.0.1", - "@deepseek-ai/dsh-tool-ask-user": "^0.0.1", "@deepseek-ai/dsh-user-interaction": "^0.0.1", "cordis": "^4.0.0-rc.6", "schemastery": "^3.17.0" @@ -49,7 +48,6 @@ "@deepseek-ai/dsh-agent-core": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "@deepseek-ai/dsh-session-persistence-jsonl": "workspace:^", - "@deepseek-ai/dsh-tool-ask-user": "workspace:^", "@deepseek-ai/dsh-user-interaction": "workspace:^", "cordis": "^4.0.0-rc.6", "schemastery": "^3.17.0" diff --git a/packages/ui/acp-agent/src/index.ts b/packages/ui/acp-agent/src/index.ts index 58a4eddda5..18490ac668 100644 --- a/packages/ui/acp-agent/src/index.ts +++ b/packages/ui/acp-agent/src/index.ts @@ -36,7 +36,6 @@ import * as acp from '@deepseek-ai/dsh-acp' import * as agentCore from '@deepseek-ai/dsh-agent-core' import SessionPersistenceJsonl from '@deepseek-ai/dsh-session-persistence-jsonl' import UserInteractionService from '@deepseek-ai/dsh-user-interaction' -import * as toolAskUser from '@deepseek-ai/dsh-tool-ask-user' export const name = 'acp-agent' @@ -82,7 +81,6 @@ export function apply(ctx: Context, config: Config): void { ...config.toolOrder !== undefined ? { toolOrder: config.toolOrder } : {}, }) ctx.plugin(UserInteractionService) - ctx.plugin(toolAskUser) ctx.plugin(SessionPersistenceJsonl, { root: config.persistenceRoot ?? './.sessions' }) ctx.plugin(acp, { model: config.model }) } diff --git a/packages/ui/acp-agent/tests/acp-agent.spec.ts b/packages/ui/acp-agent/tests/acp-agent.spec.ts index 3207f584ff..6e2f202859 100644 --- a/packages/ui/acp-agent/tests/acp-agent.spec.ts +++ b/packages/ui/acp-agent/tests/acp-agent.spec.ts @@ -31,7 +31,7 @@ describe('dsh-acp-agent composition', () => { expect(ctx.get('sessionPersistence')).toBeDefined() expect(ctx.get('agentLoop')).toBeDefined() expect(ctx.get('userInteraction')).toBeDefined() - expect(ctx.get('tools')?.get('ask_user_question')).toBeDefined() + expect(ctx.get('tools')?.get('ask_user_question')).toBeUndefined() // No pre-created agents — ACP session/new creates them on demand. expect(ctx.get('agents')!.list()).toHaveLength(0) await ctx.fiber.dispose() @@ -72,7 +72,7 @@ describe('dsh-acp-agent composition', () => { }) } const assembly = await ctx.get('systemPrompt')!.assemble() - expect(assembly.tools.map(tool => tool.name)).toEqual(['zulu', 'alpha', 'ask_user_question']) + expect(assembly.tools.map(tool => tool.name)).toEqual(['zulu', 'alpha']) await ctx.fiber.dispose() }) diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 84c798a18a..014cce1ae1 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -970,9 +970,6 @@ importers: '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../../core/system-prompt - '@deepseek-ai/dsh-tool-ask-user': - specifier: workspace:^ - version: link:../tool-ask-user '@deepseek-ai/dsh-user-interaction': specifier: workspace:^ version: link:../../core/user-interaction From 3d16026eb04a93022336052a6d43923df0d3b05e Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 01:09:21 +0800 Subject: [PATCH 085/232] feat(core): scope-aware registries and session dispatch carriers dsh-tools and dsh-system-prompt gain a per-scope registration layer over dsh-scope: a registration through a scoped context files into that scope, shadows a same-named global contribution for that scope (per-agent persona and tool variants), and unwinds with the scope. tools.restrict() masks the global surface per scope (snapshot-at-registration, loud unknown-name validation, intersection composition; scoped grants bypass). One visibility function feeds schemas/get/execute, so prompt, presentation, and dispatch can never disagree; out-of-view executes as UNKNOWN_TOOL. Prompt tool providers now receive the AssembleContext and return {schemas, knownNames}: toolOrder validates against the pre-restriction name universe (a typo fails every assembly loudly) while ordering operates on the post-restriction schemas (a restricted-away tool is a normal absence). dsh-session captures each session's dispatch carrier at enter() from the entering context's scope tag, and the new sessions.flush(session) owns the awaited session/flush dispatch. tools/pre|post-execute and system-prompt/assemble dispatch with scope carriers keyed by their subject; session/created|event|flush by the owning session's scope. --- .../core/agent-loop/tests/tool-order.spec.ts | 2 +- packages/core/session/package.json | 2 + packages/core/session/src/index.ts | 78 +++++- packages/core/session/tests/scoped.spec.ts | 112 ++++++++ packages/core/session/tsconfig.json | 3 + packages/core/system-prompt/package.json | 2 + packages/core/system-prompt/src/index.ts | 246 +++++++++++++----- .../core/system-prompt/tests/scoped.spec.ts | 138 ++++++++++ .../system-prompt/tests/system-prompt.spec.ts | 16 +- .../system-prompt/tests/tool-order.spec.ts | 26 +- packages/core/system-prompt/tsconfig.json | 3 + packages/core/tools/package.json | 2 + packages/core/tools/src/index.ts | 237 +++++++++++++++-- packages/core/tools/tests/scoped.spec.ts | 172 ++++++++++++ packages/core/tools/tsconfig.json | 3 + pnpm-lock.yaml | 15 ++ 16 files changed, 940 insertions(+), 117 deletions(-) create mode 100644 packages/core/session/tests/scoped.spec.ts create mode 100644 packages/core/system-prompt/tests/scoped.spec.ts create mode 100644 packages/core/tools/tests/scoped.spec.ts diff --git a/packages/core/agent-loop/tests/tool-order.spec.ts b/packages/core/agent-loop/tests/tool-order.spec.ts index 35329ce679..d9b0a87e1d 100644 --- a/packages/core/agent-loop/tests/tool-order.spec.ts +++ b/packages/core/agent-loop/tests/tool-order.spec.ts @@ -107,7 +107,7 @@ describe('loop-level canonical tool order', () => { agent.send([{ type: 'text', text: 'go' }]) await waitForIdle(ctx, agent) expect(adapter.requests).toHaveLength(0) - expect(errors.map(e => e.message)).toEqual(['toolOrder lists unregistered tool "ghost"; registered tools: alpha']) + expect(errors.map(e => e.message)).toEqual(['toolOrder lists unregistered tool "ghost"; known tools: alpha']) expect(foldRequestHeader(agent.session.events)).toBeUndefined() const end = agent.session.events.find(e => e.type === 'turn/end') expect(end?.type === 'turn/end' && end.data.reason).toMatchObject({ kind: 'error', step: 1 }) diff --git a/packages/core/session/package.json b/packages/core/session/package.json index 8c6645e37e..454a0d7cc3 100644 --- a/packages/core/session/package.json +++ b/packages/core/session/package.json @@ -24,11 +24,13 @@ "peerDependencies": { "@deepseek-ai/dsh-brand": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-scope": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "devDependencies": { "@deepseek-ai/dsh-brand": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-scope": "workspace:^", "cordis": "^4.0.0-rc.6" } } diff --git a/packages/core/session/src/index.ts b/packages/core/session/src/index.ts index cd9e1828b2..0bbd957a79 100644 --- a/packages/core/session/src/index.ts +++ b/packages/core/session/src/index.ts @@ -9,6 +9,8 @@ import { Context, Service } from 'cordis' import { isAbsolute } from 'node:path' import { deepFreeze } from '@deepseek-ai/dsh-llm' +import { scopeOf, scopeTarget } from '@deepseek-ai/dsh-scope' +import type { Scoped } from '@deepseek-ai/dsh-scope' import type { ContentBlock, Message, MessageSource } from '@deepseek-ai/dsh-llm' import { SESSION_FORMAT_VERSION, SessionId } from './types.ts' import type { CreateSessionOptions, EpochHeader, SessionEvent, SessionEventMap, SessionEventType, SessionHeader, SurfaceIntent, SurfaceEventType } from './types.ts' @@ -33,28 +35,48 @@ declare module 'cordis' { interface Events { /** * A session was created in the store. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the + * session's owner scope, captured when the session was ENTERED (an agent's + * session is entered through `agent.ctx`, so its events dispatch in that + * agent's scope; a bare `sessions.create()` from a plain plugin dispatches + * subject-less). A listener registered through `agent.ctx` hears only that + * agent's sessions; a plain plugin listener hears every session. * @param session - the session just entered and announced. * @mode emit */ - 'session/created'(session: Session): void + 'session/created'(this: Scoped, session: Session): void /** * An event was appended to a session log (sync, fire-and-forget). This is * the per-append feed a UI or invariant plugin tails. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the + * session's owner scope, captured when the session was ENTERED (an agent's + * session is entered through `agent.ctx`, so its events dispatch in that + * agent's scope; a bare `sessions.create()` from a plain plugin dispatches + * subject-less). A listener registered through `agent.ctx` hears only that + * agent's sessions; a plain plugin listener hears every session. * @param session - the session whose log grew. * @param event - the appended event, exactly as recorded. * @mode emit */ - 'session/event'(session: Session, event: SessionEvent): void + 'session/event'(this: Scoped, session: Session, event: SessionEvent): void /** * Awaited durability checkpoint. The agent loop awaits - * `ctx.parallel('session/flush', session)` at every turn end; persistence + * `ctx.sessions.flush(session)` at every turn end; persistence * plugins (JSONL, SQLite) drain their write-behind buffers here and on * fiber dispose. Awaited (parallel), not a waterfall: every listener runs - * and the loop waits for all of them, but none can veto. + * and the caller waits for all of them, but none can veto. Dispatch it + * through {@link SessionStore.flush} — the store owns the carrier — never + * via a raw `ctx.parallel`. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the + * session's owner scope, captured when the session was ENTERED (an agent's + * session is entered through `agent.ctx`, so its events dispatch in that + * agent's scope; a bare `sessions.create()` from a plain plugin dispatches + * subject-less). A listener registered through `agent.ctx` hears only that + * agent's sessions; a plain plugin listener hears every session. * @param session - the session whose buffered events must reach durable storage. * @mode parallel */ - 'session/flush'(session: Session): Promise | void + 'session/flush'(this: Scoped, session: Session): Promise | void } } @@ -404,6 +426,14 @@ export class SessionForkError extends Error { */ export class SessionStore extends Service { private store = new Map() + /** + * Each live session's dispatch carrier, captured at {@link enter} from the + * ENTERING context's scope tag (an agent session is entered through + * `agent.ctx` ⇒ its events dispatch in that agent's scope; a bare session ⇒ + * subject-less carrier). WeakMap so a detached session drops its carrier + * with the entry. + */ + private carriers = new WeakMap>() private counter = 0 constructor(ctx: Context) { @@ -498,7 +528,15 @@ export class SessionStore extends Service { */ enter(session: Session): () => void { if (this.store.has(session.id)) throw new Error(`session "${session.id}" already exists`) - session.onAppend = (event) => { this.ctx.emit('session/event', session, event) } + // The carrier is decided HERE, once, from the ENTERING context's scope tag + // (`this.ctx` is the caller's context — the tracker mechanism): every + // session/created|event|flush dispatch for this session uses it, so the + // session's whole event feed is scope-filtered consistently. The base is + // the session itself (scoped listeners' `this` is the session). + const carrier = scopeTarget(session, scopeOf(this.ctx)) + this.carriers.set(session, carrier) + const emitCtx = this.ctx + session.onAppend = (event) => { emitCtx.emit(carrier, 'session/event', session, event) } this.store.set(session.id, session) return () => { session.onAppend = undefined @@ -506,12 +544,32 @@ export class SessionStore extends Service { } } - /** Emit `session/created` for an {@link enter}ed session. Separate from - * {@link enter} so the caller can yield the detach disposer first (rollback - * safety — see {@link enter}). + /** Emit `session/created` for an {@link enter}ed session (with the carrier + * {@link enter} captured). Separate from {@link enter} so the caller can + * yield the detach disposer first (rollback safety — see {@link enter}). * @param session - the entered session to announce to listeners. */ announce(session: Session): void { - this.ctx.emit('session/created', session) + this.ctx.emit(this.carrierFor(session), 'session/created', session) + } + + /** + * Dispatch the awaited `session/flush` durability checkpoint for `session`, + * with the carrier captured at {@link enter}. THE flush entry point: the + * store owns the carrier, so callers (the loop's turn-end checkpoint, idle + * injection, teardown drains) must come through here rather than dispatch a + * raw `ctx.parallel('session/flush', …)` — one owner, one spelling, and the + * scoped-dispatch invariant can pin it. + * @param session - the session whose buffered events must reach durable storage. + * @returns resolves when every flush listener has settled; rejects if one rejects. + */ + async flush(session: Session): Promise { + await this.ctx.parallel(this.carrierFor(session), 'session/flush', session) + } + + /** The carrier {@link enter} captured, or a subject-less one for a session + * never entered (defensive: dispatch stays filtered either way). */ + private carrierFor(session: Session): Scoped { + return this.carriers.get(session) ?? scopeTarget(session, undefined) } /** diff --git a/packages/core/session/tests/scoped.spec.ts b/packages/core/session/tests/scoped.spec.ts new file mode 100644 index 0000000000..743b72def3 --- /dev/null +++ b/packages/core/session/tests/scoped.spec.ts @@ -0,0 +1,112 @@ +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import { createScope, scopeOf } from '@deepseek-ai/dsh-scope' +import type { Scope, ScopeKey } from '@deepseek-ai/dsh-scope' +import SessionStore from '@deepseek-ai/dsh-session' +import type { Session } from '@deepseek-ai/dsh-session' + +async function mount(): Promise { + const ctx = new Context() + await ctx.plugin(SessionStore) + return ctx +} + +async function mintScope(ctx: Context, name: string): Promise { + let scope!: Scope + // The scoped context resolves services through the MINTING plugin's + // dependency chain — the minter must inject what scope holders will reach. + await ctx.plugin(Object.assign((inner: Context) => { scope = createScope(inner, { name }) }, + { inject: ['sessions'] })) + return scope +} + +/** The key a test scope was minted with. */ +function keyOf(scope: Scope): ScopeKey { + + return scopeOf(scope.ctx)! +} + +describe('session dispatch carriers', () => { + it('a session entered through a scoped context dispatches its events in that scope', async () => { + const ctx = await mount() + const scope = await mintScope(ctx, 'owner') + const otherScope = await mintScope(ctx, 'other') + + const heard: string[] = [] + ctx.on('session/event', (_session, event) => void heard.push(`global:${event.type}`)) + scope.ctx.on('session/event', (_session, event) => void heard.push(`owner:${event.type}`)) + otherScope.ctx.on('session/event', (_session, event) => void heard.push(`other:${event.type}`)) + scope.ctx.on('session/created', session => void heard.push(`owner-created:${session.id}`)) + otherScope.ctx.on('session/created', session => void heard.push(`other-created:${session.id}`)) + + const session = scope.ctx.sessions.create() + session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) + + expect(heard).toEqual([ + `owner-created:${session.id}`, + 'global:turn/start', + 'owner:turn/start', + ]) + }) + + it('a bare session dispatches subject-less: scoped listeners never hear it', async () => { + const ctx = await mount() + const scope = await mintScope(ctx, 'owner') + const heard: string[] = [] + ctx.on('session/event', (_s, event) => void heard.push(`global:${event.type}`)) + scope.ctx.on('session/event', (_s, event) => void heard.push(`owner:${event.type}`)) + + const bare = ctx.sessions.create() + bare.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) + expect(heard).toEqual(['global:turn/start']) + }) +}) + +describe('sessions.flush()', () => { + it('dispatches session/flush with the owning carrier and awaits all listeners', async () => { + const ctx = await mount() + const scope = await mintScope(ctx, 'owner') + const flushed: string[] = [] + ctx.on('session/flush', async (session: Session) => { + await Promise.resolve() + flushed.push(`global:${session.id}`) + }) + scope.ctx.on('session/flush', (session: Session) => void flushed.push(`owner:${session.id}`)) + + const owned = scope.ctx.sessions.create() + const bare = ctx.sessions.create() + await ctx.sessions.flush(owned) + await ctx.sessions.flush(bare) + + // Parallel dispatch: listener completion order is unspecified (the global + // listener awaits a microtask) — assert set membership per flush instead. + expect(flushed.slice(0, 2).sort()).toEqual([`global:${owned.id}`, `owner:${owned.id}`]) + expect(flushed.slice(2)).toEqual([`global:${bare.id}`]) + }) + + it('propagates a rejecting flush listener (the caller owns the failure policy)', async () => { + const ctx = await mount() + ctx.on('session/flush', () => Promise.reject(new Error('disk full'))) + const session = ctx.sessions.create() + await expect(ctx.sessions.flush(session)).rejects.toThrow('disk full') + }) + + it('flushes a never-entered session with a subject-less carrier (defensive path)', async () => { + const ctx = await mount() + const scope = await mintScope(ctx, 'owner') + const flushed: string[] = [] + ctx.on('session/flush', (session: Session) => void flushed.push(`global:${session.id}`)) + scope.ctx.on('session/flush', (session: Session) => void flushed.push(`owner:${session.id}`)) + + const detached = ctx.sessions.prepare() + await ctx.sessions.flush(detached) + expect(flushed).toEqual([`global:${detached.id}`]) + }) + + it('keyOf sanity: distinct scopes carry distinct keys', async () => { + const ctx = await mount() + const a = await mintScope(ctx, 'a') + const b = await mintScope(ctx, 'b') + expect(keyOf(a)).not.toBe(keyOf(b)) + }) +}) diff --git a/packages/core/session/tsconfig.json b/packages/core/session/tsconfig.json index 7ca1556695..b19b98c5ad 100644 --- a/packages/core/session/tsconfig.json +++ b/packages/core/session/tsconfig.json @@ -19,6 +19,9 @@ }, { "path": "../../llm/llm" + }, + { + "path": "../../core/scope" } ] } diff --git a/packages/core/system-prompt/package.json b/packages/core/system-prompt/package.json index d97a7b8538..120e10ef11 100644 --- a/packages/core/system-prompt/package.json +++ b/packages/core/system-prompt/package.json @@ -23,6 +23,7 @@ "license": "BSD-3-Clause", "peerDependencies": { "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-scope": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "dependencies": { @@ -30,6 +31,7 @@ }, "devDependencies": { "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-scope": "workspace:^", "cordis": "^4.0.0-rc.6" } } diff --git a/packages/core/system-prompt/src/index.ts b/packages/core/system-prompt/src/index.ts index 81ca8087bb..8fa2daf3b0 100644 --- a/packages/core/system-prompt/src/index.ts +++ b/packages/core/system-prompt/src/index.ts @@ -14,6 +14,8 @@ import { Context, Service } from 'cordis' import z from 'schemastery' +import { scopeOf, scopeTarget } from '@deepseek-ai/dsh-scope' +import type { ScopeKey, Scoped } from '@deepseek-ai/dsh-scope' import type { ToolSchema } from '@deepseek-ai/dsh-llm' declare module 'cordis' { @@ -30,15 +32,23 @@ declare module 'cordis' { * @param assembly - the assembly built from the registered sections, tool * providers, and variable providers; listeners may mutate it or return a * replacement. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed + * by `context.scope` — a listener registered through `agent.ctx` fires only + * for that agent's assemblies; a plain plugin listener fires for every + * assembly (scope-less ones included, dispatched subject-less). * @param context - the per-assembly {@link AssembleContext} the caller * passed to {@link SystemPrompt.assemble} (e.g. which agent the prompt * is for), so a listener can filter or extend per agent. * @mode waterfall */ - 'system-prompt/assemble'(this: SystemPrompt, assembly: PromptAssembly, context: AssembleContext, next: () => Promise): Promise + 'system-prompt/assemble'(this: Scoped, assembly: PromptAssembly, context: AssembleContext, next: () => Promise): Promise /** * A section, tool provider, or variable provider was registered or - * unregistered (the assembly inputs changed). + * unregistered (the assembly inputs changed — possibly for one scope + * only). An UNFILTERED registry-subject notification, deliberately not + * scope-filtered dispatch: a global change concerns every agent's next + * assembly, so a scoped listener subscribing here sees every change, not + * just its own scope's. * @mode emit */ 'system-prompt/change'(): void @@ -47,13 +57,24 @@ declare module 'cordis' { /** * Per-assembly input: what one {@link SystemPrompt.assemble} call is FOR. - * Declared empty here so this package stays agnostic of who assembles; - * merge-extensible — `@deepseek-ai/dsh-agent` declares the `agent` field, so - * section text and variable providers can be functions of the calling agent. - * Every field is optional by nature: a bare `assemble()` (tests, diagnostics) - * carries an empty context, and providers must tolerate absent fields. + * Merge-extensible and agnostic of who assembles — `@deepseek-ai/dsh-agent` + * declares the `agent` field, so section text and variable providers can be + * functions of the calling agent. Every field is optional by nature: a bare + * `assemble()` (tests, diagnostics) carries an empty, scope-less context, and + * providers must tolerate absent fields. */ -export interface AssembleContext {} +export interface AssembleContext { + /** + * The scope layer this assembly resolves (`@deepseek-ai/dsh-scope`): scoped + * sections/variables/tool-providers registered through this key's context + * join the assembly (shadowing same-named global contributions), and the + * `system-prompt/assemble` waterfall dispatches in this scope. The agent + * loop sets it to the agent (alongside the `agent` DX field — never set + * `agent` without `scope`; the dev invariants flag the mismatch). Absent = + * a scope-less assembly: global layer only, subject-less dispatch. + */ + scope?: ScopeKey +} /** One contributed section of the system prompt (registry input). */ export interface PromptSection { @@ -83,6 +104,23 @@ export interface AssembledSection { text: string } +/** + * What one tool-schema provider contributes to an assembly + * ({@link SystemPrompt.tools}). `schemas` is the provider's POST-restriction + * visible set for the assembly's scope — exactly what the model may be shown. + * `knownNames` is its PRE-restriction name universe: the set configured names + * (`toolOrder`) are validated against, so a config typo fails loud while a + * restricted-away tool stays a normal, non-erroneous absence. Omitted, + * `knownNames` defaults to the names of `schemas` (right for providers with no + * restriction concept). + */ +export interface ToolProviderResult { + /** The schemas this provider contributes to THIS assembly. */ + schemas: ToolSchema[] + /** The pre-restriction name universe for config validation (defaults to `schemas`' names). */ + knownNames?: readonly string[] +} + /** * The assembled prompt. * @@ -146,23 +184,26 @@ function validateToolOrder(toolOrder: string[] | undefined): string[] | undefine * list, plain lexicographic name order; with one, listed names take their * listed position and every unlisted tool lands at the * {@link TOOL_ORDER_REST} rest entry in lexicographic name order. A listed - * name with no collected tool throws — misconfiguration fails loud, and this - * is the earliest moment the registered tool set exists to check against - * (tool plugins register after the service constructs, so load time is too - * early): the assembly rejects, failing the caller's turn before any model - * request. Never drops a tool, and both sorts are stable, so tools sharing a - * name keep their collection order. + * name outside `knownNames` — the providers' PRE-restriction name universe — + * throws: misconfiguration fails loud, and each assembly is the earliest + * moment the registered tool set exists to check against (tool plugins + * register after the service constructs, so load time is too early); the + * assembly rejects, failing the caller's turn before any model request. A + * listed name that is KNOWN but not collected (a tool restricted away for + * this assembly's scope) is a normal absence: its position simply + * contributes nothing — `toolOrder` stays compatible with per-agent + * `restrict()` masks. Never drops a collected tool, and both sorts are + * stable, so tools sharing a name keep their collection order. */ -function orderTools(tools: ToolSchema[], toolOrder: string[] | undefined): ToolSchema[] { +function orderTools(tools: ToolSchema[], toolOrder: string[] | undefined, knownNames: ReadonlySet): ToolSchema[] { const reserved = tools.find(tool => tool.name === TOOL_ORDER_REST) if (reserved !== undefined) { throw new Error(`tool provider returned reserved tool name "${TOOL_ORDER_REST}" (reserved for toolOrder's rest entry)`) } if (toolOrder === undefined) return tools.sort(compareToolNames) - const registered = new Set(tools.map(tool => tool.name)) - const unknown = toolOrder.filter(name => name !== TOOL_ORDER_REST && !registered.has(name)) + const unknown = toolOrder.filter(name => name !== TOOL_ORDER_REST && !knownNames.has(name)) if (unknown.length > 0) { - throw new Error(`toolOrder lists unregistered tool${unknown.length > 1 ? 's' : ''} ${unknown.map(name => `"${name}"`).join(', ')}; registered tools: ${[...registered].sort().join(', ') || '(none)'}`) + throw new Error(`toolOrder lists unregistered tool${unknown.length > 1 ? 's' : ''} ${unknown.map(name => `"${name}"`).join(', ')}; known tools: ${[...knownNames].sort().join(', ') || '(none)'}`) } const listed = new Set(toolOrder) const rest = tools.filter(tool => !listed.has(tool.name)).sort(compareToolNames) @@ -181,7 +222,10 @@ export interface Config { * The deployment's persona — the ONE deployment-authored fragment of the * system prompt, rendered as the order-0 `deployment:persona` section * (after the harness identity, before all tool guidance). Every agent in - * the context shares it, subagents included. Template, not free-form text: + * the context shares it by default; a per-agent persona is a SCOPED section + * of the same name registered through that agent's `agent.ctx` (it shadows + * this one for that agent — the subagent seam's `persona` request field does + * exactly that). Template, not free-form text: * every complete `{{…}}` group is interpreted strictly against the * registered prompt variables (the shipped agent loop registers `{{model}}` * and `{{cwd}}`), and there is no escape syntax for literal `{{…}}` prose @@ -301,8 +345,12 @@ export class SystemPrompt extends Service { }) private sections: PromptSection[] = [] - private toolProviders: (() => ToolSchema[])[] = [] + private toolProviders: ((context: AssembleContext) => ToolProviderResult)[] = [] private variableProviders = new Map string | undefined>() + /** Per-scope layers (`@deepseek-ai/dsh-scope`); entries drop when a layer empties, so a disposed scope leaves no residue. */ + private scopedSections = new Map() + private scopedToolProviders = new Map ToolProviderResult)[]>() + private scopedVariableProviders = new Map string | undefined>>() private readonly toolOrder: string[] | undefined constructor(ctx: Context, public config: Config) { @@ -330,27 +378,44 @@ export class SystemPrompt extends Service { /** * Contribute a text section to the system prompt. Order is determined by - * `section.order` (ascending). Throws if a section with the same name is - * already registered (a duplicate would silently double prompt text — e.g. - * a double-loaded tool plugin). The section is removed when the calling - * fiber is disposed. Emits `system-prompt/change` on register/unregister. + * `section.order` (ascending). The layer is decided by the CALLING context + * (`@deepseek-ai/dsh-scope`): a plain plugin context contributes globally; a + * scoped context (`agent.ctx`) contributes to that scope alone — and a + * scoped section SHADOWS a same-named global section for that scope's + * assemblies (most-specific-wins; this is how a per-agent persona overrides + * `deployment:persona`). Throws if the SAME layer already has the name (a + * duplicate would silently double prompt text — e.g. a double-loaded tool + * plugin; the global-duplicate message names `agent.ctx` as the per-agent + * alternative). Removed when the calling fiber is disposed. Emits + * `system-prompt/change` on register/unregister. * @param section - the section to contribute (name, order, text or provider). * @returns the disposer that removes the section. */ section(section: PromptSection): () => void { + const scope = scopeOf(this.ctx) const dispose = this.ctx.effect(function* (this: SystemPrompt) { - if (this.sections.some(existing => existing.name === section.name)) { - throw new Error(`prompt section "${section.name}" is already registered`) + const layer = scope === undefined + ? this.sections + : this.scopedSections.get(scope) ?? (() => { + const created: PromptSection[] = [] + this.scopedSections.set(scope, created) + return created + })() + if (layer.some(existing => existing.name === section.name)) { + throw new Error(scope === undefined + ? `prompt section "${section.name}" is already registered (for a per-agent override, register through that agent's \`agent.ctx\` instead)` + : `prompt section "${section.name}" is already registered in this scope`) } - this.sections.push(section) + layer.push(section) // Yield the rollback BEFORE emitting `system-prompt/change`: a generator // effect collects each yielded disposer before the next step runs, so a // throwing change listener removes the section instead of leaking it into // every future assembly. yield () => { - const index = this.sections.indexOf(section) + const index = layer.indexOf(section) /* v8 ignore next 3 -- defensive: section was registered, so indexOf is guaranteed >= 0 */ - if (index >= 0) this.sections.splice(index, 1) + if (index >= 0) layer.splice(index, 1) + if (scope !== undefined && layer.length === 0) this.scopedSections.delete(scope) this.ctx.emit('system-prompt/change') } this.ctx.emit('system-prompt/change') @@ -361,23 +426,36 @@ export class SystemPrompt extends Service { } /** - * Contribute a tool-schema provider that is evaluated at each assembly - * call (so it can reflect the live registry state). The provider is - * removed when the calling fiber is disposed. A provider must not return a - * schema named {@link TOOL_ORDER_REST}; that name is reserved for + * Contribute a tool-schema provider, evaluated at each assembly call with + * that assembly's {@link AssembleContext} (so it reflects the live registry + * state AND the assembly's scope — see {@link ToolProviderResult} for the + * `schemas`/`knownNames` split). The layer is decided by the calling + * context: a scoped provider (registered through `agent.ctx`) is consulted + * only for that scope's assemblies. Removed when the calling fiber is + * disposed. A provider must not return a schema named + * {@link TOOL_ORDER_REST}; that name is reserved for * {@link Config.toolOrder}'s rest entry and rejects the assembly. Emits * `system-prompt/change`. * @param provider - evaluated at every {@link assemble} for fresh schemas. * @returns the disposer that removes the provider. */ - tools(provider: () => ToolSchema[]): () => void { + tools(provider: (context: AssembleContext) => ToolProviderResult): () => void { + const scope = scopeOf(this.ctx) const dispose = this.ctx.effect(function* (this: SystemPrompt) { - this.toolProviders.push(provider) + const layer = scope === undefined + ? this.toolProviders + : this.scopedToolProviders.get(scope) ?? (() => { + const created: ((context: AssembleContext) => ToolProviderResult)[] = [] + this.scopedToolProviders.set(scope, created) + return created + })() + layer.push(provider) // Yield the rollback BEFORE emitting `system-prompt/change` (see section()). yield () => { - const index = this.toolProviders.indexOf(provider) + const index = layer.indexOf(provider) /* v8 ignore next 3 -- defensive: provider was registered, so indexOf is guaranteed >= 0 */ - if (index >= 0) this.toolProviders.splice(index, 1) + if (index >= 0) layer.splice(index, 1) + if (scope !== undefined && layer.length === 0) this.scopedToolProviders.delete(scope) this.ctx.emit('system-prompt/change') } this.ctx.emit('system-prompt/change') @@ -392,26 +470,40 @@ export class SystemPrompt extends Service { * `{{name}}`. The provider is evaluated at each assembly with that * assembly's {@link AssembleContext}; returning `undefined` means "no value * for this assembly" (a section referencing it then fails to render — a - * deployment must not claim facts it does not have). Throws on a name that - * does not match `[a-z][a-z0-9_]*` (it could never be referenced) or is - * already registered. Removed when the calling fiber is disposed; emits - * `system-prompt/change` on register/unregister. + * deployment must not claim facts it does not have). The layer is decided + * by the calling context: a scoped variable (registered through + * `agent.ctx`) resolves only for that scope's assemblies and SHADOWS a + * same-named global variable there. Throws on a name that does not match + * `[a-z][a-z0-9_]*` (it could never be referenced) or one already + * registered in the SAME layer. Removed when the calling fiber is disposed; + * emits `system-prompt/change` on register/unregister. * @param name - the reference name (matches `[a-z][a-z0-9_]*`). * @param provider - evaluated at every {@link assemble} for the value. * @returns the disposer that removes the variable. */ variable(name: string, provider: (context: AssembleContext) => string | undefined): () => void { + const scope = scopeOf(this.ctx) const dispose = this.ctx.effect(function* (this: SystemPrompt) { if (!VARIABLE_NAME.test(name)) { throw new Error(`invalid prompt variable name "${name}" (must match ${String(VARIABLE_NAME)})`) } - if (this.variableProviders.has(name)) { - throw new Error(`prompt variable "${name}" is already registered`) + const layer = scope === undefined + ? this.variableProviders + : this.scopedVariableProviders.get(scope) ?? (() => { + const created = new Map string | undefined>() + this.scopedVariableProviders.set(scope, created) + return created + })() + if (layer.has(name)) { + throw new Error(scope === undefined + ? `prompt variable "${name}" is already registered (for a per-agent value, register through that agent's \`agent.ctx\` instead)` + : `prompt variable "${name}" is already registered in this scope`) } - this.variableProviders.set(name, provider) + layer.set(name, provider) // Yield the rollback BEFORE emitting `system-prompt/change` (see section()). yield () => { - this.variableProviders.delete(name) + layer.delete(name) + if (scope !== undefined && layer.size === 0) this.scopedVariableProviders.delete(scope) this.ctx.emit('system-prompt/change') } this.ctx.emit('system-prompt/change') @@ -422,13 +514,17 @@ export class SystemPrompt extends Service { } /** - * Assemble the current prompt for one caller: section texts are resolved - * against `context` and sorted by order, tools collected from all providers - * and put in the canonical model-facing order ({@link Config.toolOrder}, or - * lexicographic name order when unconfigured — provider registration order - * is a plugin-load artifact and never reaches the assembly; a configured - * order naming a tool no provider contributed rejects the assembly), and every - * registered variable resolved against `context` into `assembly.variables`. + * Assemble the current prompt for one caller: the global layer merged with + * {@link AssembleContext.scope}'s layer (scoped sections/variables SHADOW + * same-named global ones — most-specific-wins) — section texts resolved + * against `context` and sorted by order across the union, tools collected + * from the global providers plus the scope's and put in the canonical + * model-facing order ({@link Config.toolOrder}, or lexicographic name order + * when unconfigured — provider registration order is a plugin-load artifact + * and never reaches the assembly; a configured order naming a tool outside + * the providers' `knownNames` universe rejects the assembly, while a known + * name restricted away for this scope is a normal absence), and every + * visible variable resolved against `context` into `assembly.variables`. * Tool schemas are deep-cloned because adapters and request waterfalls may * mutate schema objects. Runs through the `system-prompt/assemble` * waterfall, giving listeners the opportunity to mutate or replace the @@ -445,25 +541,59 @@ export class SystemPrompt extends Service { // rejection: a Promise-returning method must not throw synchronously // (`assemble().catch(...)` would miss it). async assemble(context: AssembleContext = {}): Promise { + const scope = context.scope + // Variables: global layer first, then the scope's layer OVERWRITES + // same-named entries (shadowing — a per-agent value wins for that agent). const variables: Record = {} for (const [name, provider] of this.variableProviders) { variables[name] = provider(context) } + const scopedVariables = scope === undefined ? undefined : this.scopedVariableProviders.get(scope) + for (const [name, provider] of scopedVariables ?? []) { + variables[name] = provider(context) + } + // Sections: merge by name, scoped REPLACING same-named global entries + // (most-specific-wins — the per-agent persona mechanism), then sort by + // order across the union. Registration order within a layer is preserved + // for equal orders (stable sort). + const sectionByName = new Map() + for (const section of this.sections) sectionByName.set(section.name, section) + for (const section of (scope === undefined ? [] : this.scopedSections.get(scope)) ?? []) { + sectionByName.set(section.name, section) + } + // Tools: consult the global providers plus the scope's, each with this + // assembly's context. `schemas` are what the model may see (already + // post-restriction, per provider); `knownNames` (defaulting to the + // schemas' names) form the pre-restriction universe `toolOrder` is + // validated against, so a restricted-away tool is a normal absence while + // a config typo still fails every assembly loudly. + const providers = [ + ...this.toolProviders, + ...(scope === undefined ? [] : this.scopedToolProviders.get(scope)) ?? [], + ] + const collected: ToolSchema[] = [] + const knownNames = new Set() + for (const provider of providers) { + const result = provider(context) + for (const tool of result.schemas) { + collected.push({ ...tool, parameters: structuredClone(tool.parameters) }) + } + for (const name of result.knownNames ?? result.schemas.map(tool => tool.name)) { + knownNames.add(name) + } + } const assembly: PromptAssembly = { - sections: this.sections + sections: [...sectionByName.values()] .map(section => ({ name: section.name, order: section.order, text: typeof section.text === 'function' ? section.text(context) : section.text, })) .sort((a, b) => a.order - b.order), - tools: orderTools( - this.toolProviders.flatMap(provider => - provider().map(tool => ({ ...tool, parameters: structuredClone(tool.parameters) }))), - this.toolOrder), + tools: orderTools(collected, this.toolOrder, knownNames), variables, } - return this.ctx.waterfall(this, 'system-prompt/assemble', assembly, context, () => Promise.resolve(assembly)) + return this.ctx.waterfall(scopeTarget(this, scope), 'system-prompt/assemble', assembly, context, () => Promise.resolve(assembly)) } } diff --git a/packages/core/system-prompt/tests/scoped.spec.ts b/packages/core/system-prompt/tests/scoped.spec.ts new file mode 100644 index 0000000000..9c448bc2ac --- /dev/null +++ b/packages/core/system-prompt/tests/scoped.spec.ts @@ -0,0 +1,138 @@ +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import { createScope, scopeOf } from '@deepseek-ai/dsh-scope' +import type { Scope, ScopeKey } from '@deepseek-ai/dsh-scope' +import SystemPrompt, { TOOL_ORDER_REST, renderPrompt } from '@deepseek-ai/dsh-system-prompt' +import type { Config, PromptAssembly } from '@deepseek-ai/dsh-system-prompt' + +async function mount(config: Config = {}): Promise { + const ctx = new Context() + await ctx.plugin(SystemPrompt, config) + return ctx +} + +async function mintScope(ctx: Context, name: string): Promise { + let scope!: Scope + // The scoped context resolves services through the MINTING plugin's + // dependency chain — the minter must inject what scope holders will reach. + await ctx.plugin(Object.assign((inner: Context) => { scope = createScope(inner, { name }) }, + { inject: ['systemPrompt'] })) + return scope +} + +const schema = (name: string) => ({ name, description: `tool ${name}`, parameters: {} }) + +/** The key a test scope was minted with (scopeOf over the scope's own ctx). */ +function scopeKeyOf(scope: Scope): ScopeKey { + // scopeOf never answers undefined for a context the scope itself minted. + + return scopeOf(scope.ctx)! +} + +describe('scoped sections', () => { + it('a scoped persona shadows deployment:persona for that scope only (either order)', async () => { + const ctx = await mount({ persona: 'You are the deployment.' }) + const scope = await mintScope(ctx, 'child') + scope.ctx.systemPrompt.section({ name: 'deployment:persona', order: 0, text: 'You run tests.' }) + + const scoped = renderPrompt(await ctx.systemPrompt.assemble({ scope: scopeKeyOf(scope) })) + const global = renderPrompt(await ctx.systemPrompt.assemble()) + expect(scoped).toContain('You run tests.') + expect(scoped).not.toContain('You are the deployment.') + expect(global).toContain('You are the deployment.') + expect(global).not.toContain('You run tests.') + }) + + it('scoped-only sections join that scope alone; disposal removes them', async () => { + const ctx = await mount() + const scope = await mintScope(ctx, 'child') + scope.ctx.systemPrompt.section({ name: 'child:extra', order: 50, text: 'Extra guidance.' }) + + expect(renderPrompt(await ctx.systemPrompt.assemble({ scope: scopeKeyOf(scope) }))).toContain('Extra guidance.') + expect(renderPrompt(await ctx.systemPrompt.assemble())).not.toContain('Extra guidance.') + await scope.dispose() + expect(renderPrompt(await ctx.systemPrompt.assemble({ scope: scopeKeyOf(scope) }))).not.toContain('Extra guidance.') + }) + + it('duplicate names throw per layer, naming agent.ctx for the global case', async () => { + const ctx = await mount() + const scope = await mintScope(ctx, 'child') + ctx.systemPrompt.section({ name: 'x', order: 1, text: 'a' }) + expect(() => ctx.systemPrompt.section({ name: 'x', order: 1, text: 'b' })).toThrow(/agent\.ctx/) + scope.ctx.systemPrompt.section({ name: 'y', order: 1, text: 'a' }) + expect(() => scope.ctx.systemPrompt.section({ name: 'y', order: 1, text: 'b' })).toThrow(/already registered in this scope/) + }) +}) + +describe('scoped variables', () => { + it('a scoped variable shadows its global name-twin for that scope', async () => { + const ctx = await mount({ persona: 'Mode: {{mode}}.' }) + const scope = await mintScope(ctx, 'child') + ctx.systemPrompt.variable('mode', () => 'normal') + scope.ctx.systemPrompt.variable('mode', () => 'strict') + + expect(renderPrompt(await ctx.systemPrompt.assemble({ scope: scopeKeyOf(scope) }))).toContain('Mode: strict.') + expect(renderPrompt(await ctx.systemPrompt.assemble())).toContain('Mode: normal.') + }) + + it('same-layer duplicates throw; scoped layer cleans up on dispose', async () => { + const ctx = await mount() + const scope = await mintScope(ctx, 'child') + scope.ctx.systemPrompt.variable('v', () => '1') + expect(() => scope.ctx.systemPrompt.variable('v', () => '2')).toThrow(/already registered in this scope/) + await scope.dispose() + // Re-minting a scope with the SAME key starts clean. + const again = await mintScope(ctx, 'child2') + again.ctx.systemPrompt.variable('v', () => '3') + }) +}) + +describe('scoped tool providers and toolOrder × restriction', () => { + it('scoped providers are consulted only for their scope', async () => { + const ctx = await mount() + const scope = await mintScope(ctx, 'child') + ctx.systemPrompt.tools(() => ({ schemas: [schema('global_tool')] })) + scope.ctx.systemPrompt.tools(() => ({ schemas: [schema('scoped_tool')] })) + + const scoped = await ctx.systemPrompt.assemble({ scope: scopeKeyOf(scope) }) + const global = await ctx.systemPrompt.assemble() + expect(scoped.tools.map(t => t.name)).toEqual(['global_tool', 'scoped_tool']) + expect(global.tools.map(t => t.name)).toEqual(['global_tool']) + }) + + it('a toolOrder entry restricted away for a scope is a normal absence, while a typo still throws', async () => { + const ctx = await mount({ toolOrder: ['bash', TOOL_ORDER_REST] }) + // A provider mimicking the registry's restriction split: bash exists + // (knownNames) but is masked for this assembly (schemas). + ctx.systemPrompt.tools(() => ({ + schemas: [schema('read')], + knownNames: ['read', 'bash'], + })) + const assembly = await ctx.systemPrompt.assemble() + expect(assembly.tools.map(t => t.name)).toEqual(['read']) + + const bad = await mount({ toolOrder: ['basj', TOOL_ORDER_REST] }) + bad.systemPrompt.tools(() => ({ schemas: [schema('read')], knownNames: ['read', 'bash'] })) + await expect(bad.systemPrompt.assemble()).rejects.toThrow('toolOrder lists unregistered tool "basj"; known tools: bash, read') + }) +}) + +describe('scoped assemble dispatch', () => { + it('an agent.ctx assemble listener shapes only its own scope\'s assemblies', async () => { + const ctx = await mount() + const scope = await mintScope(ctx, 'child') + const shaped: (ScopeKey | undefined)[] = [] + scope.ctx.on('system-prompt/assemble', async (_assembly: PromptAssembly, context, next: () => Promise) => { + shaped.push(context.scope) + const result = await next() + result.sections.push({ name: 'listener:extra', order: 999, text: 'listener text' }) + return result + }) + + const scoped = await ctx.systemPrompt.assemble({ scope: scopeKeyOf(scope) }) + const global = await ctx.systemPrompt.assemble() + expect(scoped.sections.some(s => s.name === 'listener:extra')).toBe(true) + expect(global.sections.some(s => s.name === 'listener:extra')).toBe(false) + expect(shaped).toHaveLength(1) + }) +}) diff --git a/packages/core/system-prompt/tests/system-prompt.spec.ts b/packages/core/system-prompt/tests/system-prompt.spec.ts index c0bd8be6d2..560a640643 100644 --- a/packages/core/system-prompt/tests/system-prompt.spec.ts +++ b/packages/core/system-prompt/tests/system-prompt.spec.ts @@ -52,7 +52,7 @@ describe('SystemPrompt', () => { ctx.systemPrompt.section({ name: 'cwd', order: 20, text: () => 'cwd: /tmp' }) ctx.systemPrompt.section({ name: 'rules', order: 10, text: 'Be precise.' }) - ctx.systemPrompt.tools(() => [{ name: 'echo', description: 'echo back', parameters: {} }]) + ctx.systemPrompt.tools(() => ({ schemas: [{ name: 'echo', description: 'echo back', parameters: {} }] })) const assembly = await ctx.systemPrompt.assemble() expect(assembly.sections.map(s => s.name)).toEqual(['harness:identity', 'deployment:persona', 'rules', 'cwd']) @@ -84,7 +84,7 @@ describe('SystemPrompt', () => { const fiber = await ctx.plugin(Object.assign((inner: Context) => { inner.systemPrompt.section({ name: 'scoped', order: 0, text: 'scoped section' }) - inner.systemPrompt.tools(() => [{ name: 'scoped-tool', description: '', parameters: {} }]) + inner.systemPrompt.tools(() => ({ schemas: [{ name: 'scoped-tool', description: '', parameters: {} }] })) inner.systemPrompt.variable('scoped_var', () => 'v') }, { inject: ['systemPrompt'] })) @@ -141,11 +141,11 @@ describe('SystemPrompt', () => { if (!threw) { threw = true; throw new Error('boom change listener') } }) - expect(() => ctx.systemPrompt.tools(() => [{ name: 't', description: '', parameters: {} }])).toThrow('boom change listener') + expect(() => ctx.systemPrompt.tools(() => ({ schemas: [{ name: 't', description: '', parameters: {} }] }))).toThrow('boom change listener') expect((await ctx.systemPrompt.assemble()).tools).toHaveLength(0) // nothing leaked off() - ctx.systemPrompt.tools(() => [{ name: 't', description: '', parameters: {} }]) + ctx.systemPrompt.tools(() => ({ schemas: [{ name: 't', description: '', parameters: {} }] })) expect((await ctx.systemPrompt.assemble()).tools.map(t => t.name)).toEqual(['t']) }) @@ -209,7 +209,7 @@ describe('SystemPrompt', () => { const ctx = new Context() await ctx.plugin(SystemPrompt) ctx.systemPrompt.section({ name: 'base', order: 0, text: 'base' }) - ctx.systemPrompt.tools(() => [{ name: 't', description: 'tool', parameters: { type: 'object', properties: {} } }]) + ctx.systemPrompt.tools(() => ({ schemas: [{ name: 't', description: 'tool', parameters: { type: 'object', properties: {} } }] })) const first = await ctx.systemPrompt.assemble() first.sections[0]!.name = 'mutated' @@ -243,7 +243,7 @@ describe('SystemPrompt', () => { let changeCount = 0 ctx.on('system-prompt/change', () => void changeCount++) - const dispose = ctx.systemPrompt.tools(() => []) + const dispose = ctx.systemPrompt.tools(() => ({ schemas: [] })) // registration emits change expect(changeCount).toBe(1) @@ -257,7 +257,7 @@ describe('SystemPrompt', () => { await ctx.plugin(SystemPrompt) const fiber = await ctx.plugin(Object.assign((inner: Context) => { - inner.systemPrompt.tools(() => [{ name: 'fiber-tool', description: '', parameters: {} }]) + inner.systemPrompt.tools(() => ({ schemas: [{ name: 'fiber-tool', description: '', parameters: {} }] })) }, { inject: ['systemPrompt'] })) expect((await ctx.systemPrompt.assemble()).tools).toHaveLength(1) @@ -280,7 +280,7 @@ describe('SystemPrompt', () => { const ctx = new Context() await ctx.plugin(SystemPrompt) - const dispose = ctx.systemPrompt.tools(() => [{ name: 'direct-tool', description: '', parameters: {} }]) + const dispose = ctx.systemPrompt.tools(() => ({ schemas: [{ name: 'direct-tool', description: '', parameters: {} }] })) expect((await ctx.systemPrompt.assemble()).tools).toHaveLength(1) dispose() diff --git a/packages/core/system-prompt/tests/tool-order.spec.ts b/packages/core/system-prompt/tests/tool-order.spec.ts index 02cc99b2d7..16eff6e354 100644 --- a/packages/core/system-prompt/tests/tool-order.spec.ts +++ b/packages/core/system-prompt/tests/tool-order.spec.ts @@ -26,39 +26,39 @@ describe('SystemPrompt tool order', () => { it('assembles tools in lexicographic name order when no toolOrder is configured', async () => { const ctx = await mount() - ctx.systemPrompt.tools(() => [tool('charlie'), tool('alpha')]) - ctx.systemPrompt.tools(() => [tool('bravo')]) + ctx.systemPrompt.tools(() => ({ schemas: [tool('charlie'), tool('alpha')] })) + ctx.systemPrompt.tools(() => ({ schemas: [tool('bravo')] })) expect(names(await ctx.systemPrompt.assemble())).toEqual(['alpha', 'bravo', 'charlie']) }) it('assembles the same order regardless of provider registration order', async () => { const forward = await mount() - forward.systemPrompt.tools(() => [tool('alpha')]) - forward.systemPrompt.tools(() => [tool('zulu')]) + forward.systemPrompt.tools(() => ({ schemas: [tool('alpha')] })) + forward.systemPrompt.tools(() => ({ schemas: [tool('zulu')] })) const backward = await mount() - backward.systemPrompt.tools(() => [tool('zulu')]) - backward.systemPrompt.tools(() => [tool('alpha')]) + backward.systemPrompt.tools(() => ({ schemas: [tool('zulu')] })) + backward.systemPrompt.tools(() => ({ schemas: [tool('alpha')] })) expect(names(await forward.systemPrompt.assemble())).toEqual(['alpha', 'zulu']) expect(names(await backward.systemPrompt.assemble())).toEqual(['alpha', 'zulu']) }) it('applies a configured toolOrder: listed positions, rest at the rest entry lexicographically', async () => { const ctx = await mount({ toolOrder: ['todo_write', TOOL_ORDER_REST, 'bash'] }) - ctx.systemPrompt.tools(() => [tool('bash'), tool('echo_b'), tool('todo_write'), tool('echo_a')]) + ctx.systemPrompt.tools(() => ({ schemas: [tool('bash'), tool('echo_b'), tool('todo_write'), tool('echo_a')] })) expect(names(await ctx.systemPrompt.assemble())).toEqual(['todo_write', 'echo_a', 'echo_b', 'bash']) }) it('rejects the assembly when toolOrder names a tool that is not registered (misconfiguration blocks work)', async () => { const ctx = await mount({ toolOrder: ['todo_write', 'ghost', TOOL_ORDER_REST, 'wraith'] }) - ctx.systemPrompt.tools(() => [tool('bash'), tool('todo_write')]) + ctx.systemPrompt.tools(() => ({ schemas: [tool('bash'), tool('todo_write')] })) await expect(ctx.systemPrompt.assemble()).rejects.toThrow( - 'toolOrder lists unregistered tools "ghost", "wraith"; registered tools: bash, todo_write') + 'toolOrder lists unregistered tools "ghost", "wraith"; known tools: bash, todo_write') }) it('names the single unregistered tool when no tools are registered at all', async () => { const ctx = await mount({ toolOrder: ['ghost', TOOL_ORDER_REST] }) await expect(ctx.systemPrompt.assemble()).rejects.toThrow( - 'toolOrder lists unregistered tool "ghost"; registered tools: (none)') + 'toolOrder lists unregistered tool "ghost"; known tools: (none)') }) it.each([ @@ -66,21 +66,21 @@ describe('SystemPrompt tool order', () => { ['with only the rest entry configured', [TOOL_ORDER_REST]], ])('rejects a provider tool named like the reserved rest entry %s', async (_case, toolOrder) => { const ctx = await mount(toolOrder === undefined ? {} : { toolOrder }) - ctx.systemPrompt.tools(() => [tool(TOOL_ORDER_REST)]) + ctx.systemPrompt.tools(() => ({ schemas: [tool(TOOL_ORDER_REST)] })) await expect(ctx.systemPrompt.assemble()).rejects.toThrow( `tool provider returned reserved tool name "${TOOL_ORDER_REST}"`) }) it('keeps collection order between tools that share a name (stable sort)', async () => { const ctx = await mount() - ctx.systemPrompt.tools(() => [tool('dup', 'first'), tool('anchor'), tool('dup', 'second')]) + ctx.systemPrompt.tools(() => ({ schemas: [tool('dup', 'first'), tool('anchor'), tool('dup', 'second')] })) const assembly = await ctx.systemPrompt.assemble() expect(assembly.tools.map(t => t.description)).toEqual(['anchor', 'first', 'second']) }) it('canonicalizes BEFORE the assemble waterfall: listeners see the ordered list and own their own edits', async () => { const ctx = await mount() - ctx.systemPrompt.tools(() => [tool('zulu'), tool('alpha')]) + ctx.systemPrompt.tools(() => ({ schemas: [tool('zulu'), tool('alpha')] })) let seen: string[] | undefined ctx.on('system-prompt/assemble', function (assembly, _context, next) { seen = assembly.tools.map(t => t.name) diff --git a/packages/core/system-prompt/tsconfig.json b/packages/core/system-prompt/tsconfig.json index e9de391ba1..91e7bf1ba4 100644 --- a/packages/core/system-prompt/tsconfig.json +++ b/packages/core/system-prompt/tsconfig.json @@ -19,6 +19,9 @@ }, { "path": "../../llm/llm" + }, + { + "path": "../../core/scope" } ] } diff --git a/packages/core/tools/package.json b/packages/core/tools/package.json index a6d3bbe0ca..377b522490 100644 --- a/packages/core/tools/package.json +++ b/packages/core/tools/package.json @@ -24,12 +24,14 @@ "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-scope": "^0.0.1", "@deepseek-ai/dsh-system-prompt": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-scope": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "cordis": "^4.0.0-rc.6" } diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index 39dafd6f1a..cfbeffbd57 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -9,6 +9,8 @@ */ import { Context, Service } from 'cordis' +import { scopeOf, scopeTarget } from '@deepseek-ai/dsh-scope' +import type { ScopeKey, Scoped } from '@deepseek-ai/dsh-scope' import type { CallId, ContentBlock, ToolSchema } from '@deepseek-ai/dsh-llm' import { HarnessError } from '@deepseek-ai/dsh-llm' import type { Agent, HookContext } from '@deepseek-ai/dsh-agent' @@ -70,10 +72,14 @@ declare module 'cordis' { * tool body never runs. Input rewrite is deliberately NOT offered here (see * {@link PreToolDecision}); `ask` degrades to deny until the permission * system lands (`FIXME(permissions)`). + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by + * `exec.agent` — a listener registered through `agent.ctx` fires only for + * that agent's calls; a plain plugin listener fires for every call + * (including agent-less ones, which dispatch subject-less). * @param exec - the pending call (name, parsed arguments, caller agent). * @mode waterfall */ - 'tools/pre-execute'(this: ToolRegistry, exec: ToolExecution, next: () => Promise): Promise + 'tools/pre-execute'(this: Scoped, exec: ToolExecution, next: () => Promise): Promise /** * Waterfall AFTER a tool runs — where hook plugins inspect the result and * accept it (optionally REPLACING the model-facing content, and/or attaching @@ -85,13 +91,22 @@ declare module 'cordis' { * `execute`'s outer try/catch (and the tool body keeps its own inner * try/catch, so a thrown tool still reaches `post-execute` as an `isError` * result). + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by + * `exec.agent` — a listener registered through `agent.ctx` fires only for + * that agent's calls; a plain plugin listener fires for every call + * (including agent-less ones, which dispatch subject-less). * @param exec - the call that just ran (name, parsed arguments, caller agent). * @param result - the dispatch outcome a listener may accept, replace, or block. * @mode waterfall */ - 'tools/post-execute'(this: ToolRegistry, exec: ToolExecution, result: ToolExecutionResult, next: () => Promise): Promise + 'tools/post-execute'(this: Scoped, exec: ToolExecution, result: ToolExecutionResult, next: () => Promise): Promise /** - * A tool was registered or unregistered (the available tool set changed). + * A tool was registered or unregistered, or a scoped restriction changed + * (the available tool set changed — possibly for one scope only). An + * UNFILTERED registry-subject notification, deliberately not scope-filtered + * dispatch: a global change concerns every agent's next assembly, so a + * scoped listener subscribing here sees every change, not just its own + * scope's. * @mode emit */ 'tools/change'(): void @@ -269,44 +284,88 @@ function errorInfo(error: unknown): ToolErrorInfo | undefined { return error instanceof HarnessError ? { name: error.name, code: error.code } : undefined } +/** + * A per-scope restriction over the GLOBAL tool surface, registered via + * {@link ToolRegistry.restrict}. `allow` keeps only the listed global tools; + * `deny` removes the listed ones; both present = allow first, then deny. + * Restrictions never touch scoped registrations — a tool registered through + * the same scope is an explicit grant that bypasses them (which is what keeps + * e.g. a structured-output capture tool alive under an allow-list). Multiple + * restrictions on one scope compose by intersection: every one must admit. + */ +export interface ToolRestriction { + /** Global tool names that stay visible; everything else is removed. */ + allow?: string[] + /** Global tool names removed from visibility. */ + deny?: string[] +} + /** * Tool registry (`ctx.tools`): tool plugins register definitions; the agent * loop executes calls through the `tools/pre-execute` → dispatch → * `tools/post-execute` pipeline. The registry contributes its schemas into the * system-prompt assembly. + * + * Two registration layers (`@deepseek-ai/dsh-scope`): a registration through a + * plain plugin context is GLOBAL (visible to every agent); one through a + * scoped context (`agent.ctx`) is filed in that scope's layer — visible to + * that agent alone, disposed with the scope, and SHADOWING a global tool of + * the same name for that agent (most-specific-wins; within one layer a + * duplicate name still throws). {@link restrict} masks the global layer per + * scope. One visibility function ({@link visible}) feeds prompt assembly, + * {@link get}, and {@link execute}, so what the model is shown, what a + * presenter renders, and what dispatches can never disagree. */ export class ToolRegistry extends Service { static inject = ['systemPrompt'] - private store = new Map() + private global = new Map() + private scoped = new Map>() + /** Snapshot-at-registration restriction filters, per scope (see {@link restrict}). */ + private restrictions = new Map() constructor(ctx: Context) { super(ctx, 'tools') - ctx.systemPrompt.tools(() => this.schemas()) + ctx.systemPrompt.tools(context => ({ + schemas: this.schemas(context.scope), + knownNames: this.knownNames(context.scope), + })) } /** - * Register a tool. Throws if a tool with the same name is already - * registered. The tool's schema (minus the `execute` function) is - * automatically contributed to the system-prompt assembly. Disposed - * with the calling fiber. Emits `tools/change` on register/unregister. + * Register a tool. The layer is decided by the CALLING context: a plain + * plugin context registers globally; a scoped context (`agent.ctx`) + * registers into that scope's layer — visible to that agent alone, disposed + * with the scope, and shadowing a same-named global tool for that agent. + * Throws if the SAME layer already has the name (cross-layer name twins are + * the shadowing feature, not an error; the global-duplicate message names + * `agent.ctx` as the per-agent alternative). The visible schema set flows + * into prompt assembly automatically. Disposed with the calling fiber. + * Emits `tools/change` on register/unregister. * @param definition - the tool's schema plus its execute (and optional * presentation) functions. * @returns the disposer that unregisters the tool. */ register(definition: ToolDefinition): () => void { + const scope = scopeOf(this.ctx) const dispose = this.ctx.effect(function* (this: ToolRegistry) { - if (this.store.has(definition.name)) { - throw new Error(`tool "${definition.name}" is already registered`) + const layer = scope === undefined ? this.global : this.layerFor(scope) + if (layer.has(definition.name)) { + throw new Error(scope === undefined + ? `tool "${definition.name}" is already registered (for a per-agent variant, register through that agent's \`agent.ctx\` instead)` + : `tool "${definition.name}" is already registered in this scope`) } - this.store.set(definition.name, definition) + layer.set(definition.name, definition) // Yield the rollback BEFORE emitting `tools/change`: a generator effect // collects each yielded disposer before the next step runs, so a throwing // `tools/change` listener removes the tool instead of leaking it (a leak // would wedge the duplicate-name check until restart). The duplicate // throw above fires before any mutation — it leaks nothing. yield () => { - this.store.delete(definition.name) + layer.delete(definition.name) + // An emptied scope layer is dropped so a disposed scope leaves no + // residue keyed by its (dead) key. + if (scope !== undefined && layer.size === 0) this.scoped.delete(scope) this.ctx.emit('tools/change') } this.ctx.emit('tools/change') @@ -317,33 +376,150 @@ export class ToolRegistry extends Service { } /** - * Look up a registered tool. - * @param name - the tool name as registered. - * @returns the definition, or undefined when no tool has that name. + * Restrict the GLOBAL tool surface for the calling scope. Must be called + * through a scoped context (`agent.ctx`) — restricting "everyone" is not a + * thing (throw), and an empty filter (neither `allow` nor `deny`) is a no-op + * that can only be a bug (throw — the materialized-empty-config trap). + * Validates every listed name against the scope's CURRENT pre-restriction + * name universe ({@link knownNames}) and throws on an unknown one (fail loud + * beats a typo silently filtering nothing) — register restrictions after the + * global tools they mask exist (the agent-creation `setup` window satisfies + * this). The filter is SNAPSHOT at registration: later caller mutation of + * the arrays changes nothing. Multiple restrictions compose by intersection. + * Scoped registrations bypass restrictions (explicit grants win). Disposed + * with the calling fiber (revocable independently); emits `tools/change`. + * @param filter - global-surface mask: `allow` (keep only) and/or `deny` (remove). + * @returns the disposer that lifts this restriction. */ - get(name: string): ToolDefinition | undefined { - return this.store.get(name) + restrict(filter: ToolRestriction): () => void { + const scope = scopeOf(this.ctx) + if (scope === undefined) { + throw new Error('tools.restrict() requires a scoped context (agent.ctx): a context-global restriction would mask every agent — deny the tool for the intended agent instead') + } + if (filter.allow === undefined && filter.deny === undefined) { + throw new Error('tools.restrict({}) is a no-op: pass `allow` and/or `deny` (an empty filter is almost always a materialized-empty-config bug)') + } + // Snapshot BEFORE validation so what was checked is what is enforced. + const snapshot: ToolRestriction = { + ...filter.allow !== undefined ? { allow: [...filter.allow] } : {}, + ...filter.deny !== undefined ? { deny: [...filter.deny] } : {}, + } + const known = new Set(this.knownNames(scope)) + const unknown = [...snapshot.allow ?? [], ...snapshot.deny ?? []].filter(name => !known.has(name)) + if (unknown.length > 0) { + throw new Error(`tools.restrict() names unknown tool${unknown.length > 1 ? 's' : ''} ${unknown.map(n => `"${n}"`).join(', ')}; known tools for this scope: ${[...known].sort().join(', ') || '(none)'}`) + } + const dispose = this.ctx.effect(function* (this: ToolRegistry) { + const list = this.restrictions.get(scope) ?? [] + this.restrictions.set(scope, list) + list.push(snapshot) + yield () => { + const index = list.indexOf(snapshot) + /* v8 ignore next 3 -- defensive: the snapshot was pushed, so indexOf is guaranteed >= 0 */ + if (index >= 0) list.splice(index, 1) + if (list.length === 0) this.restrictions.delete(scope) + this.ctx.emit('tools/change') + } + this.ctx.emit('tools/change') + }.bind(this), 'tools.restrict()') + // ctx.effect's disposer returns Promise; our disposer API is + // synchronous fire-and-forget — discard the (always-resolved) promise. + return () => void dispose() + } + + /** The (created-on-demand) scoped layer for `scope`. */ + private layerFor(scope: ScopeKey): Map { + let layer = this.scoped.get(scope) + if (!layer) { + layer = new Map() + this.scoped.set(scope, layer) + } + return layer + } + + /** Whether every restriction registered for `scope` admits the global tool `name` (intersection semantics). */ + private admits(scope: ScopeKey | undefined, name: string): boolean { + if (scope === undefined) return true + const filters = this.restrictions.get(scope) + if (!filters) return true + return filters.every(filter => + (filter.allow === undefined || filter.allow.includes(name)) + && (filter.deny === undefined || !filter.deny.includes(name))) } /** - * Return all registered tool schemas — exactly the model-facing fields - * (`name`, `description`, `parameters`), as sent to the model via the + * THE visibility function — one resolution feeding prompt assembly, + * {@link get}, and {@link execute}: the global layer masked by the scope's + * restrictions, unioned with the scope's own layer, scoped shadowing global + * on a name conflict. No scope = the unrestricted global view. + * @param scope - the viewing scope (the agent), or undefined for the global view. + * @returns the visible definitions (scoped shadows applied), in per-layer + * registration order, global layer first. + */ + visible(scope?: ScopeKey): ToolDefinition[] { + const layer = scope === undefined ? undefined : this.scoped.get(scope) + const result = new Map() + for (const [name, definition] of this.global) { + if (this.admits(scope, name)) result.set(name, definition) + } + // Scoped layer second: same-name entries REPLACE (shadow) the global ones, + // and grants bypass restrictions by construction (never filtered above). + for (const [name, definition] of layer ?? []) result.set(name, definition) + return [...result.values()] + } + + /** + * Look up a tool as one scope sees it ({@link visible} semantics: scoped + * shadows global; a restricted-away global reads as absent). Presenters pass + * the calling agent so the rendered card matches the definition that + * actually executed. + * @param name - the tool name as registered. + * @param scope - the viewing scope (the agent); omitted = the global view. + * @returns the definition the scope resolves, or undefined when none is visible. + */ + get(name: string, scope?: ScopeKey): ToolDefinition | undefined { + const shadowed = scope === undefined ? undefined : this.scoped.get(scope)?.get(name) + if (shadowed) return shadowed + if (!this.admits(scope, name)) return undefined + return this.global.get(name) + } + + /** + * The model-facing schemas of everything `scope` can see — exactly the + * fields (`name`, `description`, `parameters`) sent to the model via the * system-prompt assembly. Constructed EXPLICITLY rather than by stripping * known non-schema members: a `ToolDefinition` also carries `execute` and the * optional `presentCall`/`presentResult` UI callbacks, and those (especially * the functions) must never leak into a model request. An allowlist can't * drift when a new non-schema member is added to the definition; a denylist * (rest-destructure) would silently leak it. - * @returns one deep-cloned schema per registered tool, in registration order. + * @param scope - the viewing scope (the agent); omitted = the global view. + * @returns one deep-cloned schema per visible tool. */ - schemas(): ToolSchema[] { - return [...this.store.values()].map(({ name, description, parameters }): ToolSchema => ({ + schemas(scope?: ScopeKey): ToolSchema[] { + return this.visible(scope).map(({ name, description, parameters }): ToolSchema => ({ name, description, parameters: structuredClone(parameters), })) } + /** + * The PRE-restriction name universe for `scope`: every global name plus the + * scope's own layer, ignoring restrictions. This is the set configuration + * (`toolOrder`, `restrict()` filters) validates against, so a typo fails + * loud while a restricted-away tool remains a normal, non-erroneous absence. + * @param scope - the viewing scope (the agent); omitted = global names only. + * @returns the known names, deduplicated. + */ + knownNames(scope?: ScopeKey): string[] { + const names = new Set(this.global.keys()) + if (scope !== undefined) { + for (const name of this.scoped.get(scope)?.keys() ?? []) names.add(name) + } + return [...names] + } + /** * Execute one tool call through the `tools/pre-execute` → dispatch → * `tools/post-execute` pipeline. The two waterfalls are the gate (allow/deny) @@ -362,9 +538,12 @@ export class ToolRegistry extends Service { async execute(exec: ToolExecution): Promise { try { // --- Gate: tools/pre-execute. A deny (or an ask, which degrades to deny - // until the permission system lands) skips dispatch entirely. --- + // until the permission system lands) skips dispatch entirely. The + // carrier keys the dispatch by exec.agent, so an `agent.ctx` listener + // gates only its own agent's calls (agent-less calls are subject-less). + const carrier = scopeTarget(this, exec.agent) const decision = await this.ctx.waterfall( - this, 'tools/pre-execute', exec, + carrier, 'tools/pre-execute', exec, () => Promise.resolve({ kind: 'allow' }), ) if (decision.kind !== 'allow') { @@ -387,7 +566,11 @@ export class ToolRegistry extends Service { // inspect it; an unknown tool routes through the same catch. --- let result: ToolExecutionResult try { - const tool = this.store.get(exec.name) + // Resolve through the CALLER's visible view ({@link get}): a scoped + // tool shadows its global name-twin for that agent, and a + // restricted-away global tool is exactly as absent as a nonexistent + // one — same UNKNOWN_TOOL result, no capability leak in the error. + const tool = this.get(exec.name, exec.agent) if (!tool) throw new ToolNotFoundError(exec.name) // Normalize the two `execute` return shapes: a bare ContentBlock[] (no // meta) or a { content, meta } object (a tool attaching a private @@ -435,7 +618,7 @@ export class ToolRegistry extends Service { ...result.meta !== undefined ? { meta: result.meta } : {}, } const decision = await this.ctx.waterfall( - this, 'tools/post-execute', exec, result, + scopeTarget(this, exec.agent), 'tools/post-execute', exec, result, () => Promise.resolve({ kind: 'accept' }), ) const additionalContext = decision.additionalContext diff --git a/packages/core/tools/tests/scoped.spec.ts b/packages/core/tools/tests/scoped.spec.ts new file mode 100644 index 0000000000..027b5798de --- /dev/null +++ b/packages/core/tools/tests/scoped.spec.ts @@ -0,0 +1,172 @@ +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import { createScope } from '@deepseek-ai/dsh-scope' +import type { Scope } from '@deepseek-ai/dsh-scope' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import type { PreToolDecision, ToolDefinition, ToolExecution } from '@deepseek-ai/dsh-tools' +import type { Agent, AgentId } from '@deepseek-ai/dsh-agent' +import { CallId } from '@deepseek-ai/dsh-llm' +import type { ContentBlock } from '@deepseek-ai/dsh-llm' + +/** Mount the registry (with its systemPrompt dependency) on a fresh context. */ +async function mount(): Promise { + const ctx = new Context() + await ctx.plugin(SystemPrompt, {}) + await ctx.plugin(ToolRegistry) + return ctx +} + +/** Mint a scope whose key doubles as a minimal Agent-like object. */ +async function mintAgentScope(ctx: Context, name: string): Promise<{ scope: Scope; key: Agent }> { + const key = { id: name as AgentId } as Agent + let scope!: Scope + // The scoped context resolves services through the MINTING plugin's + // dependency chain — the minter must inject what scope holders will reach + // (in production the agent loop's inject list plays this role). + await ctx.plugin(Object.assign((inner: Context) => { scope = createScope(inner, key) }, + { inject: ['tools', 'systemPrompt'] })) + return { scope, key } +} + +function tool(name: string, reply = `ran:${name}`): ToolDefinition { + return { + name, + description: `tool ${name}`, + parameters: { type: 'object', properties: {} }, + execute: (): Promise => Promise.resolve([{ type: 'text', text: reply }]), + } +} + +async function run(ctx: Context, name: string, agent?: Agent): Promise { + const result = await ctx.tools.execute({ + callId: CallId('c1'), + name, + arguments: {}, + ...agent ? { agent } : {}, + }) + const first = result.content[0] + return first?.type === 'text' ? first.text : JSON.stringify(result.content) +} + +describe('scoped tool registration', () => { + it('files a scoped tool in its layer: visible/executable for that scope only', async () => { + const ctx = await mount() + const { scope, key } = await mintAgentScope(ctx, 'a') + const other = { id: 'other' as AgentId } as Agent + ctx.tools.register(tool('shared')) + scope.ctx.tools.register(tool('mine')) + + expect(ctx.tools.schemas(key).map(t => t.name).sort()).toEqual(['mine', 'shared']) + expect(ctx.tools.schemas().map(t => t.name)).toEqual(['shared']) + expect(ctx.tools.schemas(other).map(t => t.name)).toEqual(['shared']) + + expect(await run(ctx, 'mine', key)).toBe('ran:mine') + // Out-of-view execution is indistinguishable from a nonexistent tool. + expect(await run(ctx, 'mine', other)).toBe('Error: unknown tool "mine"') + expect(await run(ctx, 'mine')).toBe('Error: unknown tool "mine"') + }) + + it('scoped shadows global on a name conflict, in either registration order', async () => { + const ctx = await mount() + const { scope, key } = await mintAgentScope(ctx, 'a') + // scoped-then-global + scope.ctx.tools.register(tool('bash', 'restricted-bash')) + ctx.tools.register(tool('bash', 'global-bash')) + expect(await run(ctx, 'bash', key)).toBe('restricted-bash') + expect(await run(ctx, 'bash')).toBe('global-bash') + expect(ctx.tools.get('bash', key)?.description).toBe(ctx.tools.get('bash', key)?.description) + // Exactly one 'bash' in the scope's schema view (the shadow, not a double). + expect(ctx.tools.schemas(key).filter(t => t.name === 'bash')).toHaveLength(1) + }) + + it('rejects a duplicate name within one layer, naming agent.ctx for the global case', async () => { + const ctx = await mount() + const { scope } = await mintAgentScope(ctx, 'a') + ctx.tools.register(tool('x')) + expect(() => ctx.tools.register(tool('x'))).toThrow(/agent\.ctx/) + scope.ctx.tools.register(tool('y')) + expect(() => scope.ctx.tools.register(tool('y'))).toThrow(/already registered in this scope/) + }) + + it('disposing the scope unwinds its registrations and leaves no residue', async () => { + const ctx = await mount() + const { scope, key } = await mintAgentScope(ctx, 'a') + scope.ctx.tools.register(tool('mine')) + expect(ctx.tools.get('mine', key)).toBeDefined() + await scope.dispose() + expect(ctx.tools.get('mine', key)).toBeUndefined() + expect(ctx.tools.knownNames(key)).toEqual([]) + }) +}) + +describe('restrict()', () => { + it('masks global tools for the scope; grants bypass; assembly and execute agree', async () => { + const ctx = await mount() + const { scope, key } = await mintAgentScope(ctx, 'a') + ctx.tools.register(tool('read')) + ctx.tools.register(tool('bash')) + scope.ctx.tools.register(tool('capture')) + scope.ctx.tools.restrict({ allow: ['read'] }) + + // The scoped grant survives the allow-list; the unlisted global is gone. + expect(ctx.tools.schemas(key).map(t => t.name).sort()).toEqual(['capture', 'read']) + expect(await run(ctx, 'bash', key)).toBe('Error: unknown tool "bash"') + expect(await run(ctx, 'read', key)).toBe('ran:read') + expect(await run(ctx, 'capture', key)).toBe('ran:capture') + // Other scopes and the global view are untouched. + expect(ctx.tools.schemas().map(t => t.name).sort()).toEqual(['bash', 'read']) + }) + + it('composes multiple restrictions by intersection and lifts each independently', async () => { + const ctx = await mount() + const { scope, key } = await mintAgentScope(ctx, 'a') + for (const name of ['a', 'b', 'c']) ctx.tools.register(tool(name)) + const liftAllow = scope.ctx.tools.restrict({ allow: ['a', 'b'] }) + scope.ctx.tools.restrict({ deny: ['b'] }) + expect(ctx.tools.schemas(key).map(t => t.name)).toEqual(['a']) + liftAllow() + // The deny remains after the allow-list is lifted. + expect(ctx.tools.schemas(key).map(t => t.name).sort()).toEqual(['a', 'c']) + }) + + it('snapshots the filter at registration (caller mutation changes nothing)', async () => { + const ctx = await mount() + const { scope, key } = await mintAgentScope(ctx, 'a') + ctx.tools.register(tool('a')) + ctx.tools.register(tool('b')) + const filter = { deny: ['a'] } + scope.ctx.tools.restrict(filter) + filter.deny.push('b') + expect(ctx.tools.schemas(key).map(t => t.name)).toEqual(['b']) + }) + + it('fails loud on an unscoped call, an empty filter, and unknown names', async () => { + const ctx = await mount() + const { scope } = await mintAgentScope(ctx, 'a') + ctx.tools.register(tool('real')) + expect(() => ctx.tools.restrict({ deny: ['real'] })).toThrow(/requires a scoped context/) + expect(() => scope.ctx.tools.restrict({})).toThrow(/no-op/) + expect(() => scope.ctx.tools.restrict({ allow: ['reall'] })).toThrow(/unknown tool "reall"; known tools for this scope: real/) + }) +}) + +describe('scoped execution dispatch', () => { + it('an agent.ctx pre-execute listener gates only its own agent (and never subject-less calls)', async () => { + const ctx = await mount() + const { scope, key } = await mintAgentScope(ctx, 'a') + const other = { id: 'other' as AgentId } as Agent + ctx.tools.register(tool('t')) + + const seen: (string | undefined)[] = [] + scope.ctx.on('tools/pre-execute', (exec: ToolExecution, _next: () => Promise) => { + seen.push(exec.agent?.id) + return Promise.resolve({ kind: 'deny', reason: 'scoped veto' }) + }) + + expect(await run(ctx, 't', key)).toBe('Error: scoped veto') + expect(await run(ctx, 't', other)).toBe('ran:t') + expect(await run(ctx, 't')).toBe('ran:t') + expect(seen).toEqual(['a']) + }) +}) diff --git a/packages/core/tools/tsconfig.json b/packages/core/tools/tsconfig.json index dedc111d87..be21db9ada 100644 --- a/packages/core/tools/tsconfig.json +++ b/packages/core/tools/tsconfig.json @@ -22,6 +22,9 @@ }, { "path": "../../core/agent" + }, + { + "path": "../../core/scope" } ] } diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 8251dc62e9..9238bbea1e 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -183,6 +183,9 @@ importers: '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm + '@deepseek-ai/dsh-scope': + specifier: workspace:^ + version: link:../scope '@deepseek-ai/dsh-session': specifier: workspace:^ version: link:../session @@ -245,6 +248,9 @@ importers: '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm + '@deepseek-ai/dsh-scope': + specifier: workspace:^ + version: link:../scope '@deepseek-ai/dsh-session': specifier: workspace:^ version: link:../session @@ -278,6 +284,9 @@ importers: '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm + '@deepseek-ai/dsh-scope': + specifier: workspace:^ + version: link:../scope cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -291,6 +300,9 @@ importers: '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm + '@deepseek-ai/dsh-scope': + specifier: workspace:^ + version: link:../scope cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -303,6 +315,9 @@ importers: '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm + '@deepseek-ai/dsh-scope': + specifier: workspace:^ + version: link:../scope '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../system-prompt From f387b774a9a84d992bb73db6b1db984f971343c3 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 01:17:47 +0800 Subject: [PATCH 086/232] =?UTF-8?q?feat(agent):=20the=20agent=20is=20a=20r?= =?UTF-8?q?egistration=20scope=20=E2=80=94=20Agent.ctx,=20setup=20slot,=20?= =?UTF-8?q?fused=20scoped=20dispatch?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Every live agent owns a dsh-scope context (Agent.ctx, key = the agent), minted inside the loop's composite lifecycle effect: registrations through it are agent-visible and agent-lifetime, and agent.ctx listeners hear only that agent's dispatches. The composite yields the scope's raw disposer first (identity-nested, no un-nested window), then session entry (scoped enter captures the session carrier), then registration; teardown runs stop/drain -> unregister -> detach session -> unwind scope, keeping store/registry rollback synchronous on every failure path. CreateAgentOptions.setup(agentCtx) runs after the scope is minted and the agent registered, before agent/session-start and the loop start — the slot where a creator composes the agent's scoped world (persona sections, restrict(), scoped tools); a throwing setup unwinds inside the rollback boundary. Setup registers, it never drives. agentEvents(ctx, agent) fuses the scope carrier with the injected subject argument for every agent/* dispatch (the correct dispatch is the shortest spelling); assembleContextFor(agent) pairs the agent DX field with the scope layer selector. All loop/agent/registry dispatch sites converted; agent/* event declarations carry this: Scoped; ctx.agent is a safe root accessor defaulting undefined, shadowed by each agent context. --- packages/core/agent-loop/package.json | 2 + packages/core/agent-loop/src/agent.ts | 44 ++++- packages/core/agent-loop/src/index.ts | 44 ++++- packages/core/agent-loop/src/loop.ts | 49 +++-- .../agent-loop/tests/scope-lifecycle.spec.ts | 172 ++++++++++++++++++ packages/core/agent-loop/tsconfig.json | 3 + packages/core/agent/package.json | 2 + packages/core/agent/src/dispatch.ts | 117 ++++++++++++ packages/core/agent/src/index.ts | 45 ++++- packages/core/agent/src/types.ts | 100 ++++++++-- packages/core/agent/tests/agent.spec.ts | 3 + packages/core/agent/tsconfig.json | 3 + 12 files changed, 532 insertions(+), 52 deletions(-) create mode 100644 packages/core/agent-loop/tests/scope-lifecycle.spec.ts create mode 100644 packages/core/agent/src/dispatch.ts diff --git a/packages/core/agent-loop/package.json b/packages/core/agent-loop/package.json index 6e92adb6ab..03acc7e17f 100644 --- a/packages/core/agent-loop/package.json +++ b/packages/core/agent-loop/package.json @@ -24,6 +24,7 @@ "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-scope": "^0.0.1", "@deepseek-ai/dsh-session": "^0.0.1", "@deepseek-ai/dsh-session-persistence": "^0.0.1", "@deepseek-ai/dsh-system-prompt": "^0.0.1", @@ -37,6 +38,7 @@ "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-invariants": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-scope": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", "@deepseek-ai/dsh-session-persistence": "workspace:^", "@deepseek-ai/dsh-session-persistence-jsonl": "workspace:^", diff --git a/packages/core/agent-loop/src/agent.ts b/packages/core/agent-loop/src/agent.ts index 49de0f77c4..5f56cdc8a7 100644 --- a/packages/core/agent-loop/src/agent.ts +++ b/packages/core/agent-loop/src/agent.ts @@ -7,6 +7,8 @@ */ import type { Context } from 'cordis' +import { scopeTarget } from '@deepseek-ai/dsh-scope' +import type { Scoped } from '@deepseek-ai/dsh-scope' import type { AgentId, AgentOptions, AgentStatus, SendOptions } from '@deepseek-ai/dsh-agent' import type { Agent } from '@deepseek-ai/dsh-agent' import type { ContentBlock, MessageSource } from '@deepseek-ai/dsh-llm' @@ -28,6 +30,27 @@ export class ReactLoopAgent implements Agent { */ readonly inbox = new Inbox() + /** + * The agent's scope context ({@link Agent.ctx}), wired by the factory right + * after the scope is minted — before the agent is registered, announced, or + * driven, so no consumer can observe it unset. Definite-assignment (`!`) + * expresses that two-phase construction: the agent object and its scope + * context are mutually referential (the scope is keyed BY this agent), so + * neither can exist strictly before the other. + */ + ctx!: Context + + /** + * The dispatch carrier for this agent's own emits (`agent/status`, + * `agent/queued`, `agent/error`): keyed by the agent, base = the agent + * (listener `this` is the agent). Built lazily because it is self-referential. + */ + private get carrier(): Scoped { + return (this.#carrier ??= scopeTarget(this, this)) + } + + #carrier: Scoped | undefined + private _status: AgentStatus = 'idle' private currentAbort: AbortController | undefined /** @@ -63,7 +86,7 @@ export class ReactLoopAgent implements Agent { private idleWaiters: (() => void)[] = [] constructor( - private ctx: Context, + private loopCtx: Context, public readonly id: AgentId, public readonly options: AgentOptions, public readonly session: Session, @@ -87,9 +110,9 @@ export class ReactLoopAgent implements Agent { // not hang on one bad listener). if (status !== 'running') this.settleIdleWaiters() try { - this.ctx.emit('agent/status', this, status) + this.loopCtx.emit(this.carrier, 'agent/status', this, status) } catch (error: unknown) { - this.ctx.logger.warn(`agent "${this.id}": agent/status listener threw on ${status}: ${String(error)}`) + this.loopCtx.logger.warn(`agent "${this.id}": agent/status listener threw on ${status}: ${String(error)}`) } } @@ -112,7 +135,7 @@ export class ReactLoopAgent implements Agent { if (this._status === 'disposed') throw new Error(`agent "${this.id}" is disposed`) const source = this.resolveSource(options) this.inbox.enqueue({ content, source }) - this.ctx.emit('agent/queued', this, content, { source, steering: false }) + this.loopCtx.emit(this.carrier, 'agent/queued', this, content, { source, steering: false }) } steer(content: ContentBlock[], options?: SendOptions): void { @@ -120,7 +143,7 @@ export class ReactLoopAgent implements Agent { if (this._status !== 'running') { this.send(content, options); return } const source = this.resolveSource(options) this.inbox.steer({ content, source }) - this.ctx.emit('agent/queued', this, content, { source, steering: true }) + this.loopCtx.emit(this.carrier, 'agent/queued', this, content, { source, steering: true }) } inject(content: ContentBlock[], options?: SendOptions): void { @@ -181,11 +204,12 @@ export class ReactLoopAgent implements Agent { // plugins monitoring agent/error see idle-injection persistence failures // too. A throwing agent/error listener is contained. if (turnRecorded) { - void Promise.resolve(this.ctx.parallel('session/flush', this.session)).catch((error: unknown) => { + // Through the store's flush (the carrier owner), never a raw parallel. + void this.loopCtx.sessions.flush(this.session).catch((error: unknown) => { const err = error instanceof Error ? error : new Error(String(error)) - this.ctx.logger.warn(`agent "${this.id}": flush after idle injection failed: ${err.message}`) + this.loopCtx.logger.warn(`agent "${this.id}": flush after idle injection failed: ${err.message}`) try { - this.ctx.emit('agent/error', this, turn, 0, err) + this.loopCtx.emit(this.carrier, 'agent/error', this, turn, 0, err) } catch { // contained: the failure is already logged; a throwing agent/error // listener must not escape this fire-and-forget catch. @@ -264,7 +288,7 @@ export class ReactLoopAgent implements Agent { * fiber's LIFO disposal chain, where a throw would skip later disposers). */ start(): () => void { - this.done = runLoop(this.ctx, this, { + this.done = runLoop(this.loopCtx, this, { setStatus: (status) => { this.setStatus(status) }, setAbort: controller => void (this.currentAbort = controller), disposed: this.disposed, @@ -296,7 +320,7 @@ export class ReactLoopAgent implements Agent { // 'disposed' is part of the agent/status contract. Guarded: a throwing // listener must not break the disposal chain. try { - this.ctx.emit('agent/status', this, 'disposed') + this.loopCtx.emit(this.carrier, 'agent/status', this, 'disposed') } catch { // listener error during disposal — nothing safe left to do with it } diff --git a/packages/core/agent-loop/src/index.ts b/packages/core/agent-loop/src/index.ts index e7e0e562d9..306f8707e2 100644 --- a/packages/core/agent-loop/src/index.ts +++ b/packages/core/agent-loop/src/index.ts @@ -10,6 +10,8 @@ import { Context, Service } from 'cordis' import { randomUUID } from 'node:crypto' import z from 'schemastery' +import { createScope } from '@deepseek-ai/dsh-scope' +import { agentEvents } from '@deepseek-ai/dsh-agent' import type { AgentFactory, AgentHandle, AgentId, AgentOptions, CreateAgentOptions, ResumeAgentOptions, SessionStartSource } from '@deepseek-ai/dsh-agent' import type {} from '@deepseek-ai/dsh-llm' import { SessionId } from '@deepseek-ai/dsh-session' @@ -174,7 +176,7 @@ export class AgentLoop extends Service implements AgentFactory { }) // A seeded (forked) create is still a fresh start, NOT a resume — `resume` // is reserved for reloading a PERSISTED session via resume()/resumeWith(). - return this.startOwned(options.agentId, options.agentOptions ?? {}, session, 'startup') + return this.startOwned(options.agentId, options.agentOptions ?? {}, session, 'startup', options.setup) } /** @@ -298,17 +300,46 @@ export class AgentLoop extends Service implements AgentFactory { */ private start( id: AgentId, options: AgentOptions, session: Session, source: SessionStartSource, + setup?: (agentCtx: Context) => void, ): { agent: ReactLoopAgent; disposeAgent: () => Promise } { const agent = new ReactLoopAgent(this.ctx, id, options, session) const dispose = this.ctx.effect(function* (this: AgentLoop) { - yield this.ctx.sessions.enter(session) + // Mint the agent's scope (key = the agent) and wire the two-phase + // reference: the scope context tags registrations + filters dispatch; + // the extend adds the `ctx.agent` DX own-property on top. The raw + // disposer is yielded IMMEDIATELY (exact function identity nests the + // scope fiber out of the loop fiber's concurrent sibling list), so + // there is no window in which a throw leaves the scope un-nested. + // + // Yield order is the REVERSE of teardown (LIFO). Teardown runs: + // stop/drain → unregister → detach session → unwind scope + // Detach BEFORE the scope unwind is deliberate: the scope fiber's + // unload is asynchronous (fiber inertia), and every disposer chained + // after an async one waits for it — detaching first keeps the + // store/registry rollback SYNCHRONOUS on every failure path (a caller + // that catches a throwing create() observes no half-created agent or + // session, and the ids are immediately reusable), at the cost that a + // scoped listener's own disposer runs after the session left the store + // (it heard the final stop/drain flush while still attached, so + // nothing durable is lost). + const scope = createScope(this.ctx, agent) + agent.ctx = scope.ctx.extend({ agent }) + yield scope.rawDispose + // Enter the session THROUGH agent.ctx so the store captures the agent's + // scope as the session's dispatch carrier. + yield agent.ctx.sessions.enter(session) this.ctx.sessions.announce(session) yield this.ctx.agents.register(agent) + // The creator's scoped composition, inside the rollback boundary: a + // throwing setup unwinds LIFO through register → scope → detach, so a + // half-created agent never leaks. Setup REGISTERS (through agent.ctx), + // it never drives — see CreateAgentOptions.setup. + setup?.(agent.ctx) // Fire AFTER register (a listener can ctx.agents.get(id) + inject()) and // BEFORE the loop's first turn. Contained: a throwing listener is logged, // never aborts construction (no open turn to balance here). try { - this.ctx.emit('agent/session-start', agent, source) + agentEvents(this.ctx, agent).emit('agent/session-start', source) } catch (error: unknown) { this.ctx.logger.warn(`agent "${id}": agent/session-start listener threw: ${String(error)}`) } @@ -338,8 +369,11 @@ export class AgentLoop extends Service implements AgentFactory { * `AgentHandle.dispose(): Promise` contract (mirrors the ACP `quiesce()` * helper). */ - private startOwned(id: AgentId, options: AgentOptions, session: Session, source: SessionStartSource): AgentHandle { - const { agent, disposeAgent } = this.start(id, options, session, source) + private startOwned( + id: AgentId, options: AgentOptions, session: Session, source: SessionStartSource, + setup?: (agentCtx: Context) => void, + ): AgentHandle { + const { agent, disposeAgent } = this.start(id, options, session, source, setup) let disposing: Promise | undefined return { agent, dispose: () => (disposing ??= disposeAgent()) } } diff --git a/packages/core/agent-loop/src/loop.ts b/packages/core/agent-loop/src/loop.ts index eb5b07ba23..dbb66ad7b0 100644 --- a/packages/core/agent-loop/src/loop.ts +++ b/packages/core/agent-loop/src/loop.ts @@ -10,7 +10,8 @@ import type { Context } from 'cordis' import type { FinishReason, GenerateOptions, LlmCallConfig, Message } from '@deepseek-ai/dsh-llm' import { BlockAssembler, HarnessError, deepFreeze } from '@deepseek-ai/dsh-llm' -import type { ContinuationDecision, HookContext, PromptDecision } from '@deepseek-ai/dsh-agent' +import { agentEvents, assembleContextFor } from '@deepseek-ai/dsh-agent' +import type { AgentEventDispatch, ContinuationDecision, HookContext, PromptDecision } from '@deepseek-ai/dsh-agent' import { canonicalHeader } from '@deepseek-ai/dsh-session' import type { Session, TurnEndReason, TurnTrigger } from '@deepseek-ai/dsh-session' import { createTransmissionLog, recordRequestHeader } from './request-log.ts' @@ -155,9 +156,10 @@ export interface LoopHandle { * every prompt blocked → 'turn/end'(rejected), 0 steps * STEP loop: * drain steering → session('steering/message') ⟵ catches late steering - * assembly = ctx.systemPrompt.assemble({agent}) ⟵ waterfall system-prompt/assemble; renderPrompt + * assembly = ctx.systemPrompt.assemble(assembleContextFor(agent)) ⟵ waterfall system-prompt/assemble + * (scope-filtered; scoped sections/tools join); renderPrompt * (persona section + {{variables}}) IS the full prompt - * await ctx.serial('agent/pre-step') ⟵ surface mutation (compaction) OUTSIDE the step + * await events.serial('agent/pre-step') ⟵ surface mutation (compaction) OUTSIDE the step * boundary = session.deriveMessages() ⟵ the reconstruction boundary: snapshot in the * session('step/start') same sync frame, strictly before step/start * config = waterfall agent/request(config) ⟵ frozen seed; a returned replacement switches @@ -181,7 +183,7 @@ export interface LoopHandle { * if action==stop && steering arrived (step/end/continuation listeners): continue anyway * if action==stop: break * session('turn/end') ⟵ durable turn boundary (no agent/* mirror) - * await ctx.parallel('session/flush', session) ⟵ durability checkpoint + * await ctx.sessions.flush(session) ⟵ durability checkpoint (store-owned carrier) * re-enqueue leftover steering as queued ⟵ steering is never stranded * idle (emit agent/status) unless more queued * ``` @@ -198,6 +200,10 @@ export async function runLoop(ctx: Context, agent: ReactLoopAgent, handle: LoopH const transmission = createTransmissionLog() const { session } = agent + // The fused agent-subject dispatcher: every agent/* dispatch below carries + // the agent's scope (an `agent.ctx` listener hears only this agent) with + // the subject injected — one spelling, checked by the dev invariants. + const events = agentEvents(ctx, agent) while (!handle.isDisposed()) { await agent.inbox.waitForQueued(handle.disposed) @@ -252,7 +258,7 @@ export async function runLoop(ctx: Context, agent: ReactLoopAgent, handle: LoopH // turn number is actually last in the log — a stale counter would collide. const turn = lastTurnNumber(session) + 1 try { - await runTurn(ctx, agent, handle, turn, transmission) + await runTurn(ctx, events, agent, handle, turn, transmission) } catch (error: unknown) { // Backstop: runTurn rethrows only a PRE-turn throw (the invariant guard // before turn/start) — no turn/start was appended, so no turn is open and @@ -263,7 +269,7 @@ export async function runLoop(ctx: Context, agent: ReactLoopAgent, handle: LoopH const err = toError(error) ctx.logger.warn(`agent "${agent.id}": turn ${turn} failed before it started: ${err.message}`) try { - ctx.emit('agent/error', agent, turn, 0, err) + events.emit('agent/error', turn, 0, err) } catch { /* contained: a throwing agent/error listener must not kill the driver */ } } @@ -288,7 +294,7 @@ export async function runLoop(ctx: Context, agent: ReactLoopAgent, handle: LoopH } async function runTurn( - ctx: Context, agent: ReactLoopAgent, handle: LoopHandle, turn: number, transmission: TransmissionLog, + ctx: Context, events: AgentEventDispatch, agent: ReactLoopAgent, handle: LoopHandle, turn: number, transmission: TransmissionLog, ): Promise { const { session } = agent @@ -354,7 +360,7 @@ async function runTurn( // boundary is durable). So set the error reason for closeTurn to append. reason = { kind: 'error', step, ...errorData(err) } try { - ctx.emit('agent/error', agent, turn, step, err) + events.emit('agent/error', turn, step, err) } catch { // contained: the error is already captured on `reason`; a throwing // agent/error listener must not prevent the turn from closing. @@ -398,8 +404,8 @@ async function runTurn( // batch always reports the last vetoing reason. let lastBlockReason = 'prompt blocked by hook' for (const message of queued) { - const decision = await ctx.waterfall( - 'agent/prompt-submit', agent, message.content, message.source, + const decision = await events.waterfall( + 'agent/prompt-submit', message.content, message.source, () => Promise.resolve({ kind: 'allow' }), ) if (decision.kind === 'block') { @@ -456,7 +462,7 @@ async function runTurn( // step. renderPrompt IS the full prompt — the persona is the order-0 // section (registered by the AgentLoop plugin) and `{{variable}}` // interpolation happens in the render, so there is no separate join. - const assembly = await ctx.systemPrompt.assemble({ agent }) + const assembly = await ctx.systemPrompt.assemble(assembleContextFor(agent)) const fullSystemPrompt = renderPrompt(assembly) // Interruption landing after assembly: dispose() or cancel() in a @@ -483,7 +489,7 @@ async function runTurn( // throwing listener escapes to the outer catch, which closes the (not-yet- // open) step as a no-op and ends the turn via failTurn — a broken // pre-step plugin ends the turn, not the loop. - await ctx.serial('agent/pre-step', agent, turn, step, fullSystemPrompt, abort.signal) + await events.serial('agent/pre-step', turn, step, fullSystemPrompt, abort.signal) // Interruption landing during the pre-step seam: do not open an empty step. if (handle.isCancelled() || handle.isDisposed()) { @@ -524,7 +530,8 @@ async function runTurn( let stepOutcome: { hadToolCalls: boolean; finish: FinishReason } | { error: Error } try { - stepOutcome = await runStep(ctx, agent, turn, step, assembly, fullSystemPrompt, boundaryMessages, transmission, abort.signal) + stepOutcome = await runStep( + ctx, events, agent, turn, step, assembly, fullSystemPrompt, boundaryMessages, transmission, abort.signal) } catch (error: unknown) { stepOutcome = { error: toError(error) } } finally { @@ -566,8 +573,8 @@ async function runTurn( const defaultDecision: ContinuationDecision = { action: stepOutcome.hadToolCalls || steered ? 'continue' : 'stop' } let decision: ContinuationDecision try { - decision = await ctx.waterfall( - 'agent/turn-continuation', agent, turn, defaultDecision, + decision = await events.waterfall( + 'agent/turn-continuation', turn, defaultDecision, () => Promise.resolve(defaultDecision), ) } catch (error: unknown) { @@ -644,8 +651,9 @@ async function runTurn( // Durability checkpoint: persistence plugins drain write-behind buffers. // A failing persistence plugin is reported but doesn't kill the agent. + // Through the store's flush (the carrier owner), never a raw parallel. try { - await ctx.parallel('session/flush', session) + await ctx.sessions.flush(session) } catch (error: unknown) { // The turn is already closed (turn/end appended above) and flush must run // AFTER turn/end to be a checkpoint — so there is no in-turn position left @@ -657,7 +665,7 @@ async function runTurn( const err = toError(error) ctx.logger.warn(`agent "${agent.id}": session/flush failed at turn ${turn}: ${err.message}`) try { - ctx.emit('agent/error', agent, turn, step, err) + events.emit('agent/error', turn, step, err) } catch { // contained: a throwing agent/error listener must not escape the loop. } @@ -681,6 +689,7 @@ function drainSteering(agent: ReactLoopAgent, turn: number): boolean { * step/start and already reflects any compaction. */ async function runStep( ctx: Context, + events: AgentEventDispatch, agent: ReactLoopAgent, turn: number, step: number, @@ -713,7 +722,7 @@ async function runStep( // model-visible content flows through the log channels). The header event // below records whatever the request ACTUALLY uses, so a listener's switch // is a logged, reconstructable fact, never silent drift. - const config = await ctx.waterfall('agent/request', agent, turn, step, seedConfig, () => Promise.resolve(seedConfig)) + const config = await events.waterfall('agent/request', turn, step, seedConfig, () => Promise.resolve(seedConfig)) if (!config.model) { throw new Error(`agent "${agent.id}" has no model: set AgentOptions.model or supply one via the agent/request waterfall`) } @@ -764,7 +773,7 @@ async function runStep( if (assembler.finish.kind === 'max-tokens') { let message: Message = withoutToolCalls(assembler.message()) - message = withoutToolCalls(await ctx.waterfall('agent/step-result', agent, turn, step, message, () => Promise.resolve(message))) + message = withoutToolCalls(await events.waterfall('agent/step-result', turn, step, message, () => Promise.resolve(message))) // Fire the assistant/message when there is content OR usage: a max-tokens // step can be cut off with empty content but still carry token accounting, // and assistant/message is the only host for usage (there is no standalone @@ -787,7 +796,7 @@ async function runStep( // source of truth for derived history and replay) records the message that // tool dispatch actually uses. let message: Message = assembler.message() - message = await ctx.waterfall('agent/step-result', agent, turn, step, message, () => Promise.resolve(message)) + message = await events.waterfall('agent/step-result', turn, step, message, () => Promise.resolve(message)) // Same content-or-usage guard as the max-tokens branch: a step that finishes // with neither assembled content nor usage (e.g. a bare `stop` finish that diff --git a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts new file mode 100644 index 0000000000..28d1da192d --- /dev/null +++ b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts @@ -0,0 +1,172 @@ +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import LlmService from '@deepseek-ai/dsh-llm' +import SessionStore, { SessionId } from '@deepseek-ai/dsh-session' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import AgentRegistry, { AgentId, agentEvents, assembleContextFor } from '@deepseek-ai/dsh-agent' +import type { Agent } from '@deepseek-ai/dsh-agent' +import { scopeOf } from '@deepseek-ai/dsh-scope' +import AgentLoop, { ReactLoopAgent } from '@deepseek-ai/dsh-agent-loop' +import type { ContentBlock } from '@deepseek-ai/dsh-llm' +import { MockAdapter, textResponse } from './mock-adapter.ts' + +async function harness(adapter: MockAdapter = new MockAdapter([textResponse('ok')])) { + const ctx = new Context() + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt, { persona: 'You are the deployment.' }) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(AgentLoop, { agents: [] }) + ctx.llm.registerAdapter(['mock'], adapter) + return ctx +} + +function waitForIdle(ctx: Context, agent: ReactLoopAgent): Promise { + return new Promise((resolve) => { + const dispose = ctx.on('agent/status', (subject, status) => { + if (subject === agent && status === 'idle') { + dispose() + resolve() + } + }) + }) +} + +const text = (t: string): ContentBlock[] => [{ type: 'text', text: t }] + +describe('agent scope lifecycle', () => { + it('wires agent.ctx: tagged with the agent, DX field set, ctx.agent safe elsewhere', async () => { + const ctx = await harness() + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + expect(scopeOf(agent.ctx)).toBe(agent) + expect(agent.ctx.agent).toBe(agent) + // The root accessor default: a plain context answers undefined, not a throw. + expect(ctx.agent).toBeUndefined() + await ctx.agents.get(AgentId('a1'))?.whenIdle() + }) + + it('scoped registrations live in the agent world and die with the agent', async () => { + const ctx = await harness() + const handle = ctx.agents.create({ agentId: AgentId('a1'), sessionId: SessionId('s1'), agentOptions: { model: 'mock' } }) + const { agent } = handle + agent.ctx.systemPrompt.section({ name: 'deployment:persona', order: 0, text: 'You run tests.' }) + agent.ctx.tools.register({ + name: 'mine', description: 'scoped', parameters: {}, + execute: () => Promise.resolve(text('ran')), + }) + + const scopedAssembly = await ctx.systemPrompt.assemble(assembleContextFor(agent)) + expect(scopedAssembly.sections.find(s => s.name === 'deployment:persona')?.text).toBe('You run tests.') + expect(scopedAssembly.tools.map(t => t.name)).toContain('mine') + // Other assemblies are untouched. + const globalAssembly = await ctx.systemPrompt.assemble() + expect(globalAssembly.sections.find(s => s.name === 'deployment:persona')?.text).toBe('You are the deployment.') + expect(globalAssembly.tools.map(t => t.name)).not.toContain('mine') + + await handle.dispose() + // The scoped world unwound with the agent: nothing leaked into the registries. + expect(ctx.tools.get('mine', agent)).toBeUndefined() + const after = await ctx.systemPrompt.assemble(assembleContextFor(agent)) + expect(after.sections.find(s => s.name === 'deployment:persona')?.text).toBe('You are the deployment.') + }) + + it('agent.ctx listeners hear only their own agent (scoped dispatch end to end)', async () => { + const ctx = await harness(new MockAdapter([textResponse('one'), textResponse('two')])) + const a = ctx.agentLoop.create(AgentId('a'), { model: 'mock' }) + const b = ctx.agentLoop.create(AgentId('b'), { model: 'mock' }) + + const heard: string[] = [] + a.ctx.on('agent/status', (subject, status) => void heard.push(`a-sees:${subject.id}:${status}`)) + a.ctx.on('session/event', (_s, event) => { + if (event.type === 'user/message') heard.push('a-sees:user-message') + }) + + b.send(text('for b')) + await waitForIdle(ctx, b) + expect(heard).toEqual([]) // nothing of b's leaked into a's scope + + a.send(text('for a')) + await waitForIdle(ctx, a) + expect(heard).toContain('a-sees:a:running') + expect(heard).toContain('a-sees:user-message') + }) + + it('runs setup in the guaranteed slot: scoped world complete before session-start and the first assembly', async () => { + const ctx = await harness() + const order: string[] = [] + ctx.on('agent/session-start', (agent) => { + order.push('session-start') + // The scoped section is already registered by the time session-start fires. + void ctx.systemPrompt.assemble(assembleContextFor(agent)).then((assembly) => { + order.push(`persona:${assembly.sections.find(s => s.name === 'deployment:persona')?.text}`) + }) + }) + + const handle = ctx.agents.create({ + agentId: AgentId('child'), + sessionId: SessionId('child-s'), + agentOptions: { model: 'mock' }, + setup: (agentCtx) => { + order.push('setup') + agentCtx.systemPrompt.section({ name: 'deployment:persona', order: 0, text: 'You are the child.' }) + }, + }) + await new Promise(resolve => setTimeout(resolve, 0)) + expect(order).toEqual(['setup', 'session-start', 'persona:You are the child.']) + await handle.dispose() + }) + + it('a throwing setup unwinds the half-created agent completely', async () => { + const ctx = await harness() + expect(() => ctx.agents.create({ + agentId: AgentId('bad'), + sessionId: SessionId('bad-s'), + agentOptions: { model: 'mock' }, + setup: () => { throw new Error('boom setup') }, + })).toThrow('boom setup') + + // Nothing leaked: no agent, no session, and the ids are reusable. + expect(ctx.agents.get(AgentId('bad'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('bad-s'))).toBeUndefined() + const retry = ctx.agents.create({ agentId: AgentId('bad'), sessionId: SessionId('bad-s'), agentOptions: { model: 'mock' } }) + await retry.dispose() + }) + + it('a throwing session/created listener disposes the scope (pre-nesting rollback window)', async () => { + const ctx = await harness() + let boom = true + ctx.on('session/created', () => { + if (boom) { boom = false; throw new Error('boom created') } + }) + expect(() => ctx.agents.create({ + agentId: AgentId('bad'), sessionId: SessionId('bad-s'), agentOptions: { model: 'mock' }, + })).toThrow('boom created') + expect(ctx.agents.get(AgentId('bad'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('bad-s'))).toBeUndefined() + // The rollback also disposed the scope fiber: re-creating works cleanly. + const retry = ctx.agents.create({ agentId: AgentId('bad'), sessionId: SessionId('bad-s'), agentOptions: { model: 'mock' } }) + expect(scopeOf(retry.agent.ctx)).toBe(retry.agent) + await retry.dispose() + }) + + it('registrations through a disposed agent ctx throw INACTIVE_EFFECT', async () => { + const ctx = await harness() + const handle = ctx.agents.create({ agentId: AgentId('a1'), sessionId: SessionId('s1'), agentOptions: { model: 'mock' } }) + await handle.dispose() + expect(() => handle.agent.ctx.on('agent/status', () => {})).toThrow(/inactive context/) + }) + + it('agentEvents fuses carrier and subject for custom drivers', async () => { + const ctx = await harness() + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + const other = ctx.agentLoop.create(AgentId('a2'), { model: 'mock' }) + const heard: string[] = [] + agent.ctx.on('agent/error', (subject: Agent, turn: number) => void heard.push(`${subject.id}:${turn}`)) + + agentEvents(ctx, other).emit('agent/error', 1, 0, new Error('not for a1')) + agentEvents(ctx, agent).emit('agent/error', 2, 0, new Error('for a1')) + expect(heard).toEqual(['a1:2']) + }) +}) diff --git a/packages/core/agent-loop/tsconfig.json b/packages/core/agent-loop/tsconfig.json index 03df67cfc4..5d7cf98bb7 100644 --- a/packages/core/agent-loop/tsconfig.json +++ b/packages/core/agent-loop/tsconfig.json @@ -34,6 +34,9 @@ }, { "path": "../../core/agent" + }, + { + "path": "../../core/scope" } ] } diff --git a/packages/core/agent/package.json b/packages/core/agent/package.json index e38a6c8d61..b8e6108904 100644 --- a/packages/core/agent/package.json +++ b/packages/core/agent/package.json @@ -24,6 +24,7 @@ "peerDependencies": { "@deepseek-ai/dsh-brand": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-scope": "^0.0.1", "@deepseek-ai/dsh-session": "^0.0.1", "@deepseek-ai/dsh-system-prompt": "^0.0.1", "cordis": "^4.0.0-rc.6" @@ -31,6 +32,7 @@ "devDependencies": { "@deepseek-ai/dsh-brand": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-scope": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "cordis": "^4.0.0-rc.6" diff --git a/packages/core/agent/src/dispatch.ts b/packages/core/agent/src/dispatch.ts new file mode 100644 index 0000000000..bed4981135 --- /dev/null +++ b/packages/core/agent/src/dispatch.ts @@ -0,0 +1,117 @@ +/** + * Fused scope-carrier dispatch for agent-subject events, plus the assembly + * context builder. The ONE sanctioned spelling for dispatching `agent/*` + * events: `agentEvents(ctx, agent).waterfall('agent/request', …)` builds the + * scope carrier ({@link scopeTarget} keyed by the agent) AND injects the + * subject as the first event argument in one move, so the correct dispatch is + * also the shortest — a dispatch site cannot pass a carrier keyed to one + * agent while naming another as the subject, which is the invariant the + * dev-mode scoped-dispatch check asserts at runtime. + * + * @module @deepseek-ai/dsh-agent/dispatch + */ + +import type { Context, Events } from 'cordis' +import { scopeTarget } from '@deepseek-ai/dsh-scope' +import type { Scoped } from '@deepseek-ai/dsh-scope' +import type { AssembleContext } from '@deepseek-ai/dsh-system-prompt' +import type { Agent } from './types.ts' + +/** Extract the parameter tuple from an event handler type (its `this` is not part of the tuple). */ +type Params = F extends (...args: infer P) => unknown ? P : never +/** Extract the return type from an event handler type. */ +type Return = F extends (...args: never[]) => infer R ? R : never + +/** + * The event names whose subject is an agent: handler parameters start with an + * `Agent` AND the handler declares a `Scoped` `this` (the scope-carrier + * contract). The `this` check keeps accidental first-parameter-happens-to-be- + * an-Agent events (or zero-arg events, whose parameter tuple would satisfy a + * bare rest-tuple check via callability) out of the fused-dispatch surface. + */ +export type AgentSubjectEvent = { + [K in keyof Events]: Events[K] extends (this: Scoped, ...args: infer P) => unknown + ? P extends [Agent, ...unknown[]] ? K : never + : never +}[keyof Events] + +/** The event arguments AFTER the injected agent subject. */ +type Tail = Params extends [Agent, ...infer R] ? R : never + +/** + * The fused dispatcher {@link agentEvents} returns: each method dispatches the + * named agent-subject event with the agent's scope carrier as `thisArg` and + * the agent itself injected as the first event argument. + */ +export interface AgentEventDispatch { + /** + * Fire-and-forget notification (Cordis `emit`) in the agent's scope. + * @param name - the agent-subject event to emit. + * @param rest - the event's arguments after the injected agent. + */ + emit(name: K, ...rest: Tail): void + /** + * Awaited in-order dispatch (Cordis `serial`) in the agent's scope. + * @param name - the agent-subject event to dispatch. + * @param rest - the event's arguments after the injected agent. + * @returns the serial chain's result (the first bail value, if any). + */ + serial(name: K, ...rest: Tail): Promise>> + /** + * Around-middleware dispatch (Cordis `waterfall`) in the agent's scope. The + * declared event parameters already end with the `next` callback, so `rest` + * is exactly the event's arguments after the injected agent — the final + * element being the innermost `next` (the default the listener chain wraps). + * @param name - the agent-subject event to dispatch. + * @param rest - the event's arguments after the injected agent. + * @returns the waterfall's composed result. + */ + waterfall(name: K, ...rest: Tail): Return +} + +/** + * Build the fused dispatcher for `agent`'s events (see the module doc). Cheap + * (one carrier + one small object) — dispatch sites create it per run/turn + * rather than caching it on the agent. + * @param ctx - the context to dispatch through (any context of the app). + * @param agent - the subject agent; also the scope-carrier key. + * @returns the fused dispatcher. + */ +export function agentEvents(ctx: Context, agent: Agent): AgentEventDispatch { + const carrier: Scoped = scopeTarget(agent, agent) + // The three dispatch methods forward through cordis' variadic mixins. The + // fused (carrier, name, agent, ...rest) tuple is provably a valid argument + // list for the matching thisArg overload, but TypeScript cannot relate the + // generic Tail spread back to that overload's conditional parameter + // tuple — hence one contained, shape-preserving cast per method. + return { + emit(name, ...rest) { + // eslint-disable-next-line @typescript-eslint/unbound-method -- the events mixin accessor returns a pre-bound function + const emit = ctx.emit as (thisArg: Scoped, name: string, ...args: unknown[]) => void + emit(carrier, name, agent, ...rest) + }, + async serial(name, ...rest) { + // eslint-disable-next-line @typescript-eslint/unbound-method -- the events mixin accessor returns a pre-bound function + const serial = ctx.serial as (thisArg: Scoped, name: string, ...args: unknown[]) => Promise + return await serial(carrier, name, agent, ...rest) + }, + waterfall(name, ...rest) { + // eslint-disable-next-line @typescript-eslint/unbound-method -- the events mixin accessor returns a pre-bound function + const waterfall = ctx.waterfall as (thisArg: Scoped, name: string, ...args: unknown[]) => never + return waterfall(carrier, name, agent, ...rest) + }, + } +} + +/** + * The assembly context for one agent's prompt: the typed `agent` DX field and + * the `scope` layer selector, set together (setting `agent` without `scope` + * silently drops the agent's scoped sections/tools from the assembly — the + * dev invariants flag it). THE way the loop (and any custom driver) builds + * its per-step `ctx.systemPrompt.assemble(…)` input. + * @param agent - the agent the assembly is for. + * @returns the context to pass to `assemble()`. + */ +export function assembleContextFor(agent: Agent): AssembleContext { + return { agent, scope: agent } +} diff --git a/packages/core/agent/src/index.ts b/packages/core/agent/src/index.ts index 096555f925..b9c9e6f0df 100644 --- a/packages/core/agent/src/index.ts +++ b/packages/core/agent/src/index.ts @@ -6,14 +6,28 @@ */ import { Context, Service } from 'cordis' +import { scopeTarget } from '@deepseek-ai/dsh-scope' import type { SessionEvent, SessionId } from '@deepseek-ai/dsh-session' import type { Agent, AgentId, AgentOptions } from './types.ts' export * from './types.ts' +export { agentEvents, assembleContextFor } from './dispatch.ts' +export type { AgentEventDispatch, AgentSubjectEvent } from './dispatch.ts' declare module 'cordis' { interface Context { agents: AgentRegistry + /** + * The agent whose scope this context belongs to, or `undefined` on any + * context not derived from an agent scope. Pure DX sugar over the + * `dsh-scope` tag: the agent loop sets it as an own property on each + * `Agent.ctx`, and {@link AgentRegistry} registers a root accessor + * defaulting to `undefined` so the read is safe on every context (a plain + * plugin context answers `undefined` instead of throwing the Cordis + * unknown-property error). Core packages below the agent layer read the + * `dsh-scope` tag (`scopeOf`) instead, never this field. + */ + agent?: Agent } } @@ -51,6 +65,20 @@ export interface CreateAgentOptions { seed?: SessionEvent[] /** Per-agent options (model, …). */ agentOptions?: AgentOptions + /** + * Creation-time composition of the agent's scoped world. The factory runs it + * inside the agent's composite lifecycle effect — after the scope is minted + * and the agent registered, before `agent/session-start` fires and the loop + * starts — so everything it registers through `agentCtx` (scoped tools, + * prompt sections/variables, `restrict()`, listeners, `agentCtx.plugin(…)` + * profiles) exists before the first prompt assembly, and a THROWING setup + * unwinds inside the rollback boundary instead of leaking a half-created + * agent. **Setup registers, it never drives**: calling + * `send`/`steer`/`inject` here would open a turn before `agent/session-start` + * (the dev invariants flag a `turn/start` logged before session-start as a + * teaching error) — drive the agent after creation returns. + */ + setup?: (agentCtx: Context) => void } /** @@ -120,6 +148,13 @@ export class AgentRegistry extends Service { constructor(ctx: Context) { super(ctx, 'agents') + // The `ctx.agent` DX accessor: default `undefined` on every context, so a + // plain plugin context reads cleanly instead of hitting the Cordis + // unknown-property throw. Each Agent.ctx shadows it with an own property + // (own properties resolve before the context proxy is consulted), so the + // accessor body never needs to resolve a scope itself. Effect-scoped: + // unwinds with this service's fiber. + ctx.accessor('agent', { get: () => undefined }) } /** @@ -167,7 +202,11 @@ export class AgentRegistry extends Service { /** * Register a live agent. Throws if an agent with the same id is already * registered. Emits `agent/created` on registration and `agent/disposed` - * when the calling fiber is disposed. Returns the disposer. + * when the calling fiber is disposed — both with the agent's scope carrier + * (`scopeTarget(agent, agent)`): the subject is the agent in hand, so the + * emits are scope-filtered regardless of which context invoked `register` + * (calling through `agent.ctx` scopes EFFECTS; dispatch scoping always + * requires passing the carrier). Returns the disposer. * @param agent - the already-constructed agent to record in the store. * @returns the disposer that removes the agent and emits `agent/disposed`. */ @@ -196,12 +235,12 @@ export class AgentRegistry extends Service { // logging the listener bug and continuing is correct (mirrors the // guarded `agent/status` emit in dsh-agent-loop's ReactLoopAgent). try { - this.ctx.emit('agent/disposed', agent) + this.ctx.emit(scopeTarget(agent, agent), 'agent/disposed', agent) } catch (error: unknown) { this.ctx.logger.warn(`agent "${agent.id}": agent/disposed listener threw: ${String(error)}`) } } - this.ctx.emit('agent/created', agent) + this.ctx.emit(scopeTarget(agent, agent), 'agent/created', agent) }.bind(this), 'agents.register()') // ctx.effect's disposer returns Promise; our disposer API is // synchronous fire-and-forget — discard the (always-resolved) promise. diff --git a/packages/core/agent/src/types.ts b/packages/core/agent/src/types.ts index 46bc52128a..ff6f79d039 100644 --- a/packages/core/agent/src/types.ts +++ b/packages/core/agent/src/types.ts @@ -44,6 +44,8 @@ */ import type { Branded } from '@deepseek-ai/dsh-brand' +import type { Context } from 'cordis' +import type { Scoped } from '@deepseek-ai/dsh-scope' import type { ContentBlock, LlmCallConfig, Message, MessageSource } from '@deepseek-ai/dsh-llm' import type {} from '@deepseek-ai/dsh-system-prompt' @@ -64,10 +66,14 @@ declare module '@deepseek-ai/dsh-system-prompt' { interface AssembleContext { /** * The agent this assembly is for. The agent loop passes it on every - * per-step `assemble({ agent })`; variable providers project per-agent - * facts from it (`options.model` → `{{model}}`, `session.header.cwd` → + * per-step assembly (via its `assembleContextFor(agent)` helper, which + * also sets the `scope` field to the same agent — the layer selector + * `dsh-system-prompt` reads); variable providers project per-agent facts + * from it (`options.model` → `{{model}}`, `session.header.cwd` → * `{{cwd}}`). Optional because a bare `assemble()` (tests, diagnostics) - * has no agent — providers must tolerate its absence. + * has no agent — providers must tolerate its absence. Never set `agent` + * without `scope`: the assembly would silently miss the agent's scoped + * sections/tools (the dev invariants flag it). */ agent?: Agent } @@ -175,6 +181,17 @@ export interface Agent { readonly options: AgentOptions readonly session: Session readonly status: AgentStatus + /** + * The agent's scope context (`@deepseek-ai/dsh-scope`, key = this agent). + * Registrations through it — tools, prompt sections/variables, event + * listeners, restrictions — are visible to THIS agent only and unwind when + * the agent is disposed; `agent.ctx.on('agent/…')` listeners fire only for + * this agent's dispatches (zero self-filtering). Service resolution through + * it flows through the loop plugin's dependency surface — handing out + * `agent.ctx` hands out that capability. Live for exactly the agent's + * lifetime: registrations after disposal throw Cordis's INACTIVE_EFFECT. + */ + readonly ctx: Context /** Queue a user message. Starts a turn when idle; otherwise waits for the next turn. */ send(content: ContentBlock[], options?: SendOptions): void @@ -259,34 +276,54 @@ declare module 'cordis' { * An agent was registered in the {@link AgentRegistry} and is ready to * receive messages. * @param agent - the newly registered agent, already resolvable in the registry. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered + * through `agent.ctx` fires only for that agent's dispatches; a listener on a + * plain plugin context fires for every agent. The dispatch `this` is the + * scope carrier (`Scoped`), built by the emitting side via + * `scopeTarget`/`agentEvents`. * @mode emit */ - 'agent/created'(agent: Agent): void + 'agent/created'(this: Scoped, agent: Agent): void /** * An agent was disposed and removed from the registry; its fiber and any * in-flight turn have been torn down. * @param agent - the agent that was torn down; its handle is now inert. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered + * through `agent.ctx` fires only for that agent's dispatches; a listener on a + * plain plugin context fires for every agent. The dispatch `this` is the + * scope carrier (`Scoped`), built by the emitting side via + * `scopeTarget`/`agentEvents`. * @mode emit */ - 'agent/disposed'(agent: Agent): void + 'agent/disposed'(this: Scoped, agent: Agent): void /** * Agent status changed (`idle` ⇄ `running`, or → `disposed`). Drive * lifecycle off this transition, never off a status you just requested — * `send()` does not flip status to `running` before it returns. * @param agent - the agent whose status flipped. * @param status - the status just entered (the transition's destination). + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered + * through `agent.ctx` fires only for that agent's dispatches; a listener on a + * plain plugin context fires for every agent. The dispatch `this` is the + * scope carrier (`Scoped`), built by the emitting side via + * `scopeTarget`/`agentEvents`. * @mode emit */ - 'agent/status'(agent: Agent, status: AgentStatus): void + 'agent/status'(this: Scoped, agent: Agent, status: AgentStatus): void /** * A message entered the agent's inbox (queued or steering). `source` is * the resolved source (defaults applied), not the caller's raw options. * @param agent - the agent whose inbox received the message. * @param content - the enqueued content blocks, verbatim. * @param info - the resolved source plus whether it entered as steering. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered + * through `agent.ctx` fires only for that agent's dispatches; a listener on a + * plain plugin context fires for every agent. The dispatch `this` is the + * scope carrier (`Scoped`), built by the emitting side via + * `scopeTarget`/`agentEvents`. * @mode emit */ - 'agent/queued'(agent: Agent, content: ContentBlock[], info: { source: MessageSource; steering: boolean }): void + 'agent/queued'(this: Scoped, agent: Agent, content: ContentBlock[], info: { source: MessageSource; steering: boolean }): void // ---- session lifecycle (emit) ---- /** @@ -299,9 +336,14 @@ declare module 'cordis' { * is deliberate (a bridge logs/injects, it does not gate startup). * @param agent - the agent whose session lifecycle began. * @param source - why the session started (fresh startup, resume, …). + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered + * through `agent.ctx` fires only for that agent's dispatches; a listener on a + * plain plugin context fires for every agent. The dispatch `this` is the + * scope carrier (`Scoped`), built by the emitting side via + * `scopeTarget`/`agentEvents`. * @mode emit */ - 'agent/session-start'(agent: Agent, source: SessionStartSource): void + 'agent/session-start'(this: Scoped, agent: Agent, source: SessionStartSource): void // Turn and step boundaries are NOT mirrored as agent/* emits: a consumer // that needs them reads the durable `turn/start`/`turn/end`/`step/start`/ @@ -334,6 +376,11 @@ declare module 'cordis' { * listener needs to measure pressure (the system prompt counts toward the * budget). `signal` cancels any in-flight work a listener starts (e.g. a * summarization model call). + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered + * through `agent.ctx` fires only for that agent's dispatches; a listener on a + * plain plugin context fires for every agent. The dispatch `this` is the + * scope carrier (`Scoped`), built by the emitting side via + * `scopeTarget`/`agentEvents`. * @param agent - the agent about to open the step. * @param turn - the already-open turn this step belongs to. * @param step - the number of the step about to start. @@ -346,7 +393,7 @@ declare module 'cordis' { // reads. Revisit if no second consumer appears: e.g. hand listeners a lazy // prompt provider, or move token-pressure measurement behind a // compaction-specific seam instead of the shared pre-step checkpoint. - 'agent/pre-step'(agent: Agent, turn: number, step: number, fullSystemPrompt: string, signal: AbortSignal): Promise | void + 'agent/pre-step'(this: Scoped, agent: Agent, turn: number, step: number, fullSystemPrompt: string, signal: AbortSignal): Promise | void /** * Waterfall: decide what happens to ONE drained queued message before it * becomes a `user/message` — allow (optionally rewriting the prompt bytes or @@ -357,9 +404,14 @@ declare module 'cordis' { * @param agent - the agent draining its inbox. * @param content - the drained message's blocks, as queued. * @param source - the message's resolved source. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered + * through `agent.ctx` fires only for that agent's dispatches; a listener on a + * plain plugin context fires for every agent. The dispatch `this` is the + * scope carrier (`Scoped`), built by the emitting side via + * `scopeTarget`/`agentEvents`. * @mode waterfall */ - 'agent/prompt-submit'(agent: Agent, content: ContentBlock[], source: MessageSource, next: () => Promise): Promise + 'agent/prompt-submit'(this: Scoped, agent: Agent, content: ContentBlock[], source: MessageSource, next: () => Promise): Promise /** * Waterfall: shape the step's call configuration — model switching, * sampling overrides — by returning a replacement {@link LlmCallConfig} @@ -380,9 +432,14 @@ declare module 'cordis' { * @param turn - the open turn number. * @param step - the step whose request this is. * @param config - the config the loop would use (frozen); return a replacement to switch. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered + * through `agent.ctx` fires only for that agent's dispatches; a listener on a + * plain plugin context fires for every agent. The dispatch `this` is the + * scope carrier (`Scoped`), built by the emitting side via + * `scopeTarget`/`agentEvents`. * @mode waterfall */ - 'agent/request'(agent: Agent, turn: number, step: number, config: LlmCallConfig, next: () => Promise): Promise + 'agent/request'(this: Scoped, agent: Agent, turn: number, step: number, config: LlmCallConfig, next: () => Promise): Promise /** * Waterfall: post-process the assembled assistant {@link Message} before * tool dispatch (validation, content rewriting, …). @@ -390,9 +447,14 @@ declare module 'cordis' { * @param turn - the open turn number. * @param step - the step that produced the message. * @param message - the assistant message as assembled from the stream. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered + * through `agent.ctx` fires only for that agent's dispatches; a listener on a + * plain plugin context fires for every agent. The dispatch `this` is the + * scope carrier (`Scoped`), built by the emitting side via + * `scopeTarget`/`agentEvents`. * @mode waterfall */ - 'agent/step-result'(agent: Agent, turn: number, step: number, message: Message, next: () => Promise): Promise + 'agent/step-result'(this: Scoped, agent: Agent, turn: number, step: number, message: Message, next: () => Promise): Promise /** * Waterfall: override the turn-continuation decision via a typed * {@link ContinuationDecision}. The loop's `defaultDecision` is `continue` @@ -403,9 +465,14 @@ declare module 'cordis' { * @param agent - the agent deciding whether to run another step. * @param turn - the turn being continued or stopped. * @param defaultDecision - what the loop would do absent an override. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered + * through `agent.ctx` fires only for that agent's dispatches; a listener on a + * plain plugin context fires for every agent. The dispatch `this` is the + * scope carrier (`Scoped`), built by the emitting side via + * `scopeTarget`/`agentEvents`. * @mode waterfall */ - 'agent/turn-continuation'(agent: Agent, turn: number, defaultDecision: ContinuationDecision, next: () => Promise): Promise + 'agent/turn-continuation'(this: Scoped, agent: Agent, turn: number, defaultDecision: ContinuationDecision, next: () => Promise): Promise // ---- error notifications (emit) ---- /** @@ -415,8 +482,13 @@ declare module 'cordis' { * @param turn - the turn in which the failure surfaced. * @param step - the step at which the failure surfaced. * @param error - the failure, verbatim. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered + * through `agent.ctx` fires only for that agent's dispatches; a listener on a + * plain plugin context fires for every agent. The dispatch `this` is the + * scope carrier (`Scoped`), built by the emitting side via + * `scopeTarget`/`agentEvents`. * @mode emit */ - 'agent/error'(agent: Agent, turn: number, step: number, error: Error): void + 'agent/error'(this: Scoped, agent: Agent, turn: number, step: number, error: Error): void } } diff --git a/packages/core/agent/tests/agent.spec.ts b/packages/core/agent/tests/agent.spec.ts index c344cd2a6f..43b4752f1b 100644 --- a/packages/core/agent/tests/agent.spec.ts +++ b/packages/core/agent/tests/agent.spec.ts @@ -10,6 +10,9 @@ function stubAgent(rawId: string): Agent { options: {}, session: new Session(SessionId(`${id}-session`)), status: 'idle', + // A bare context stands in for the agent scope: registry tests never + // register through it, they only need the field present. + ctx: new Context(), send() {}, steer() {}, inject() {}, diff --git a/packages/core/agent/tsconfig.json b/packages/core/agent/tsconfig.json index 7f4f457598..2692e1b7f7 100644 --- a/packages/core/agent/tsconfig.json +++ b/packages/core/agent/tsconfig.json @@ -17,6 +17,9 @@ { "path": "../../util/brand" }, + { + "path": "../../core/scope" + }, { "path": "../../llm/llm" }, From 806e7a84cf2e8316cdfa6fdc0b1b276be6f5f0cb Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 01:21:27 +0800 Subject: [PATCH 087/232] docs: regenerate module graph, config catalog, and cordis catalogs for agent scoping --- docs/config-catalog.md | 9 ++-- docs/cordis-catalog/events.md | 88 ++++++++++++++++----------------- docs/cordis-catalog/services.md | 22 ++++++--- docs/module-graph.md | 15 ++++-- 4 files changed, 74 insertions(+), 60 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 870f57053e..afa88564c4 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -119,7 +119,7 @@ export interface Config { Depends on: [`AgentId`](../packages/core/agent/src/index.ts) · [`AgentOptions`](../packages/core/agent/src/index.ts) · [`SessionId`](../packages/core/session/src/index.ts) -Source: [`packages/core/agent-loop/src/index.ts:36`](../packages/core/agent-loop/src/index.ts) +Source: [`packages/core/agent-loop/src/index.ts:38`](../packages/core/agent-loop/src/index.ts) ## `@deepseek-ai/dsh-bash-local` @@ -565,7 +565,10 @@ export interface Config { * The deployment's persona — the ONE deployment-authored fragment of the * system prompt, rendered as the order-0 `deployment:persona` section * (after the harness identity, before all tool guidance). Every agent in - * the context shares it, subagents included. Template, not free-form text: + * the context shares it by default; a per-agent persona is a SCOPED section + * of the same name registered through that agent's `agent.ctx` (it shadows + * this one for that agent — the subagent seam's `persona` request field does + * exactly that). Template, not free-form text: * every complete `{{…}}` group is interpreted strictly against the * registered prompt variables (the shipped agent loop registers `{{model}}` * and `{{cwd}}`), and there is no escape syntax for literal `{{…}}` prose @@ -600,7 +603,7 @@ export interface Config { } ``` -Source: [`packages/core/system-prompt/src/index.ts:179`](../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:220`](../packages/core/system-prompt/src/index.ts) ## `@deepseek-ai/dsh-tool-fs` diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 8d776a75ef..ec418b0576 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -18,134 +18,134 @@ Dispatch modes: **emit** (fire-and-forget), **waterfall** (each listener gets `n An agent was registered in the AgentRegistry and is ready to receive messages. ```ts cordis-catalog -'agent/created'(agent: Agent): void +'agent/created'(this: Scoped, agent: Agent): void ``` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:264`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:286`](../../packages/core/agent/src/types.ts) ### `agent/disposed` — emit An agent was disposed and removed from the registry; its fiber and any in-flight turn have been torn down. ```ts cordis-catalog -'agent/disposed'(agent: Agent): void +'agent/disposed'(this: Scoped, agent: Agent): void ``` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:271`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:298`](../../packages/core/agent/src/types.ts) ### `agent/error` — emit A step or turn errored. The loop reports a failure here (plus the logger) even when the error has no in-turn position for a session `error` event. ```ts cordis-catalog -'agent/error'(agent: Agent, turn: number, step: number, error: Error): void +'agent/error'(this: Scoped, agent: Agent, turn: number, step: number, error: Error): void ``` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:420`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:492`](../../packages/core/agent/src/types.ts) ### `agent/pre-step` — serial Awaited pre-step surface-mutation checkpoint, fired once per step AFTER `turn/start` (and after the prior step closed) but BEFORE this step's `step/start` — so anything a listener appends lands OUTSIDE the step, between `turn/start`/`step/end` and the upcoming `step/start`. `step` is the number of the step about to start. The loop awaits `ctx.serial('agent/pre-step', …)` after assembling the system prompt, then opens the step and derives the request history ONCE from whatever the surface now holds. This is where compaction belongs: it mutates the session surface in place (shadowing an older range with a summary node) with its log-only `compact/*` records cleanly outside any step, and the single subsequent derive reflects the mutation — so there is no double-derive and no listener can see (or be expected to act on) an assembled `messages` array that does not exist yet. -Serial (awaited in registration order), not a waterfall: a listener mutates the surface as a side effect; there is nothing to transform, but the loop must wait for the mutation to complete before opening the step and deriving. Cordis `serial` bails early if a listener returns a bail value; this event is typed and documented as `void`, so listeners must not return a semantic veto value. `fullSystemPrompt` is the assembled prompt a listener needs to measure pressure (the system prompt counts toward the budget). `signal` cancels any in-flight work a listener starts (e.g. a summarization model call). +Serial (awaited in registration order), not a waterfall: a listener mutates the surface as a side effect; there is nothing to transform, but the loop must wait for the mutation to complete before opening the step and deriving. Cordis `serial` bails early if a listener returns a bail value; this event is typed and documented as `void`, so listeners must not return a semantic veto value. `fullSystemPrompt` is the assembled prompt a listener needs to measure pressure (the system prompt counts toward the budget). `signal` cancels any in-flight work a listener starts (e.g. a summarization model call). Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered through `agent.ctx` fires only for that agent's dispatches; a listener on a plain plugin context fires for every agent. The dispatch `this` is the scope carrier (`Scoped`), built by the emitting side via `scopeTarget`/`agentEvents`. ```ts cordis-catalog -'agent/pre-step'(agent: Agent, turn: number, step: number, fullSystemPrompt: string, signal: AbortSignal): Promise | void +'agent/pre-step'(this: Scoped, agent: Agent, turn: number, step: number, fullSystemPrompt: string, signal: AbortSignal): Promise | void ``` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:349`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:396`](../../packages/core/agent/src/types.ts) ### `agent/prompt-submit` — waterfall Waterfall: decide what happens to ONE drained queued message before it becomes a `user/message` — allow (optionally rewriting the prompt bytes or attaching `additionalContext`) or block it. Fires inside the already-open turn, per drained message. Maps onto Claude Code's `UserPromptSubmit` hook. Call `next()` to delegate to the default (allow unchanged), or return a PromptDecision without calling `next()` to short-circuit. ```ts cordis-catalog -'agent/prompt-submit'(agent: Agent, content: ContentBlock[], source: MessageSource, next: () => Promise): Promise +'agent/prompt-submit'(this: Scoped, agent: Agent, content: ContentBlock[], source: MessageSource, next: () => Promise): Promise ``` Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:362`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:414`](../../packages/core/agent/src/types.ts) ### `agent/queued` — emit A message entered the agent's inbox (queued or steering). `source` is the resolved source (defaults applied), not the caller's raw options. ```ts cordis-catalog -'agent/queued'(agent: Agent, content: ContentBlock[], info: { source: MessageSource; steering: boolean }): void +'agent/queued'(this: Scoped, agent: Agent, content: ContentBlock[], info: { source: MessageSource; steering: boolean }): void ``` Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:289`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:326`](../../packages/core/agent/src/types.ts) ### `agent/request` — waterfall Waterfall: shape the step's call configuration — model switching, sampling overrides — by returning a replacement LlmCallConfig (the frozen seed is the config the loop would otherwise use). Config is ALL a listener shapes here: every request is a pure function of the session log (the reconstructability RFC), so model-visible content flows through the log channels — `inject()`, steering, prompt-submit `additionalContext`, prompt sections via `system-prompt/assemble` — never through request mutation, and the loop records whatever config the request actually uses as a `request/header*` event before dispatch. The step's messages are already snapshotted when this fires (the `step/start` boundary): an `inject()` from a listener here lands in the log but joins the NEXT request. For surface mutation that must precede the snapshot (compaction), use agent/pre-step. Call `next()` to delegate, or return an LlmCallConfig without it to short-circuit. ```ts cordis-catalog -'agent/request'(agent: Agent, turn: number, step: number, config: LlmCallConfig, next: () => Promise): Promise +'agent/request'(this: Scoped, agent: Agent, turn: number, step: number, config: LlmCallConfig, next: () => Promise): Promise ``` Types: [Agent](../core-data-structures/core.md) · [LlmCallConfig](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:385`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:442`](../../packages/core/agent/src/types.ts) ### `agent/session-start` — emit The agent's session lifecycle began, fired once before its first turn. `source` says why (SessionStartSource: fresh startup, a resumed persisted session, …). A pure NOTIFICATION (emit, not waterfall): it carries no veto — a session-start listener that wants to seed context does so via `agent.inject()` (a `context/message` the first request sees), not by returning a decision. Cannot block the session from starting; that gap is deliberate (a bridge logs/injects, it does not gate startup). ```ts cordis-catalog -'agent/session-start'(agent: Agent, source: SessionStartSource): void +'agent/session-start'(this: Scoped, agent: Agent, source: SessionStartSource): void ``` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:304`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:346`](../../packages/core/agent/src/types.ts) ### `agent/status` — emit Agent status changed (`idle` ⇄ `running`, or → `disposed`). Drive lifecycle off this transition, never off a status you just requested — `send()` does not flip status to `running` before it returns. ```ts cordis-catalog -'agent/status'(agent: Agent, status: AgentStatus): void +'agent/status'(this: Scoped, agent: Agent, status: AgentStatus): void ``` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:280`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:312`](../../packages/core/agent/src/types.ts) ### `agent/step-result` — waterfall Waterfall: post-process the assembled assistant Message before tool dispatch (validation, content rewriting, …). ```ts cordis-catalog -'agent/step-result'(agent: Agent, turn: number, step: number, message: Message, next: () => Promise): Promise +'agent/step-result'(this: Scoped, agent: Agent, turn: number, step: number, message: Message, next: () => Promise): Promise ``` Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:395`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:457`](../../packages/core/agent/src/types.ts) ### `agent/turn-continuation` — waterfall Waterfall: override the turn-continuation decision via a typed ContinuationDecision. The loop's `defaultDecision` is `continue` when the step had tool calls or steering was injected, else `stop`. Listeners force-continue (`/goal`, `/loop` — optionally attaching a `reason` recorded as next-step steering) or force-stop (budget guards). Call `next()` to delegate to the default, or return a decision to override. ```ts cordis-catalog -'agent/turn-continuation'(agent: Agent, turn: number, defaultDecision: ContinuationDecision, next: () => Promise): Promise +'agent/turn-continuation'(this: Scoped, agent: Agent, turn: number, defaultDecision: ContinuationDecision, next: () => Promise): Promise ``` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:408`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:475`](../../packages/core/agent/src/types.ts) ## `fs/*` @@ -203,35 +203,35 @@ Source: [`packages/llm/llm/src/index.ts:39`](../../packages/llm/llm/src/index.ts ### `session/created` — emit -A session was created in the store. +A session was created in the store. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the session's owner scope, captured when the session was ENTERED (an agent's session is entered through `agent.ctx`, so its events dispatch in that agent's scope; a bare `sessions.create()` from a plain plugin dispatches subject-less). A listener registered through `agent.ctx` hears only that agent's sessions; a plain plugin listener hears every session. ```ts cordis-catalog -'session/created'(session: Session): void +'session/created'(this: Scoped, session: Session): void ``` -Source: [`packages/core/session/src/index.ts:39`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:47`](../../packages/core/session/src/index.ts) ### `session/event` — emit -An event was appended to a session log (sync, fire-and-forget). This is the per-append feed a UI or invariant plugin tails. +An event was appended to a session log (sync, fire-and-forget). This is the per-append feed a UI or invariant plugin tails. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the session's owner scope, captured when the session was ENTERED (an agent's session is entered through `agent.ctx`, so its events dispatch in that agent's scope; a bare `sessions.create()` from a plain plugin dispatches subject-less). A listener registered through `agent.ctx` hears only that agent's sessions; a plain plugin listener hears every session. ```ts cordis-catalog -'session/event'(session: Session, event: SessionEvent): void +'session/event'(this: Scoped, session: Session, event: SessionEvent): void ``` Types: [SessionEvent](../core-data-structures/core.md) -Source: [`packages/core/session/src/index.ts:47`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:61`](../../packages/core/session/src/index.ts) ### `session/flush` — parallel -Awaited durability checkpoint. The agent loop awaits `ctx.parallel('session/flush', session)` at every turn end; persistence plugins (JSONL, SQLite) drain their write-behind buffers here and on fiber dispose. Awaited (parallel), not a waterfall: every listener runs and the loop waits for all of them, but none can veto. +Awaited durability checkpoint. The agent loop awaits `ctx.sessions.flush(session)` at every turn end; persistence plugins (JSONL, SQLite) drain their write-behind buffers here and on fiber dispose. Awaited (parallel), not a waterfall: every listener runs and the caller waits for all of them, but none can veto. Dispatch it through SessionStore.flush — the store owns the carrier — never via a raw `ctx.parallel`. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the session's owner scope, captured when the session was ENTERED (an agent's session is entered through `agent.ctx`, so its events dispatch in that agent's scope; a bare `sessions.create()` from a plain plugin dispatches subject-less). A listener registered through `agent.ctx` hears only that agent's sessions; a plain plugin listener hears every session. ```ts cordis-catalog -'session/flush'(session: Session): Promise | void +'session/flush'(this: Scoped, session: Session): Promise | void ``` -Source: [`packages/core/session/src/index.ts:57`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:79`](../../packages/core/session/src/index.ts) ## `subagent/*` @@ -282,56 +282,56 @@ Source: [`packages/subagent/subagent/src/index.ts:91`](../../packages/subagent/s Waterfall around prompt assembly — mutate or extend the PromptAssembly (sections + tools + variables) before it is rendered. Bound to the SystemPrompt service; call `next()` to delegate. ```ts cordis-catalog -'system-prompt/assemble'(this: SystemPrompt, assembly: PromptAssembly, context: AssembleContext, next: () => Promise): Promise +'system-prompt/assemble'(this: Scoped, assembly: PromptAssembly, context: AssembleContext, next: () => Promise): Promise ``` -Source: [`packages/core/system-prompt/src/index.ts:38`](../../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:44`](../../packages/core/system-prompt/src/index.ts) ### `system-prompt/change` — emit -A section, tool provider, or variable provider was registered or unregistered (the assembly inputs changed). +A section, tool provider, or variable provider was registered or unregistered (the assembly inputs changed — possibly for one scope only). An UNFILTERED registry-subject notification, deliberately not scope-filtered dispatch: a global change concerns every agent's next assembly, so a scoped listener subscribing here sees every change, not just its own scope's. ```ts cordis-catalog 'system-prompt/change'(): void ``` -Source: [`packages/core/system-prompt/src/index.ts:44`](../../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:54`](../../packages/core/system-prompt/src/index.ts) ## `tools/*` ### `tools/change` — emit -A tool was registered or unregistered (the available tool set changed). +A tool was registered or unregistered, or a scoped restriction changed (the available tool set changed — possibly for one scope only). An UNFILTERED registry-subject notification, deliberately not scope-filtered dispatch: a global change concerns every agent's next assembly, so a scoped listener subscribing here sees every change, not just its own scope's. ```ts cordis-catalog 'tools/change'(): void ``` -Source: [`packages/core/tools/src/index.ts:97`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:112`](../../packages/core/tools/src/index.ts) ### `tools/post-execute` — waterfall -Waterfall AFTER a tool runs — where hook plugins inspect the result and accept it (optionally REPLACING the model-facing content, and/or attaching `additionalContext` for the next request) or block it with corrective `feedback` (Claude Code's `PostToolUse`). Listeners receive `(exec, result, next)`: call `next()` to delegate to the default (accept unchanged), or return a PostToolDecision to override. The core tool dispatch sits between the two waterfalls as plain code, all inside `execute`'s outer try/catch (and the tool body keeps its own inner try/catch, so a thrown tool still reaches `post-execute` as an `isError` result). +Waterfall AFTER a tool runs — where hook plugins inspect the result and accept it (optionally REPLACING the model-facing content, and/or attaching `additionalContext` for the next request) or block it with corrective `feedback` (Claude Code's `PostToolUse`). Listeners receive `(exec, result, next)`: call `next()` to delegate to the default (accept unchanged), or return a PostToolDecision to override. The core tool dispatch sits between the two waterfalls as plain code, all inside `execute`'s outer try/catch (and the tool body keeps its own inner try/catch, so a thrown tool still reaches `post-execute` as an `isError` result). Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by `exec.agent` — a listener registered through `agent.ctx` fires only for that agent's calls; a plain plugin listener fires for every call (including agent-less ones, which dispatch subject-less). ```ts cordis-catalog -'tools/post-execute'(this: ToolRegistry, exec: ToolExecution, result: ToolExecutionResult, next: () => Promise): Promise +'tools/post-execute'(this: Scoped, exec: ToolExecution, result: ToolExecutionResult, next: () => Promise): Promise ``` Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:92`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:102`](../../packages/core/tools/src/index.ts) ### `tools/pre-execute` — waterfall -Waterfall BEFORE a tool runs — the gate where sandbox, permission, and hook plugins allow or deny a call (Claude Code's `PreToolUse`). Listeners receive `(exec, next)`: call `next()` to delegate to the default (allow), or return a PreToolDecision without calling `next()` to short-circuit. A `deny` skips dispatch and yields an `isError` result; the tool body never runs. Input rewrite is deliberately NOT offered here (see PreToolDecision); `ask` degrades to deny until the permission system lands (`FIXME(permissions)`). +Waterfall BEFORE a tool runs — the gate where sandbox, permission, and hook plugins allow or deny a call (Claude Code's `PreToolUse`). Listeners receive `(exec, next)`: call `next()` to delegate to the default (allow), or return a PreToolDecision without calling `next()` to short-circuit. A `deny` skips dispatch and yields an `isError` result; the tool body never runs. Input rewrite is deliberately NOT offered here (see PreToolDecision); `ask` degrades to deny until the permission system lands (`FIXME(permissions)`). Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by `exec.agent` — a listener registered through `agent.ctx` fires only for that agent's calls; a plain plugin listener fires for every call (including agent-less ones, which dispatch subject-less). ```ts cordis-catalog -'tools/pre-execute'(this: ToolRegistry, exec: ToolExecution, next: () => Promise): Promise +'tools/pre-execute'(this: Scoped, exec: ToolExecution, next: () => Promise): Promise ``` Types: [ToolExecution](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:76`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:82`](../../packages/core/tools/src/index.ts) ## Inherited events (cordis core + loader/hmr/timer) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 26126c4481..47c080d9a7 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -21,7 +21,7 @@ createAgent(options: CreateAgentOptions): AgentHandle async resume(options: ResumeAgentOptions): Promise ``` -Source: [`packages/core/agent-loop/src/index.ts:68`](../../packages/core/agent-loop/src/index.ts) +Source: [`packages/core/agent-loop/src/index.ts:70`](../../packages/core/agent-loop/src/index.ts) ## `ctx.agents` — `AgentRegistry` @@ -38,7 +38,7 @@ list(): Agent[] Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/index.ts:117`](../../packages/core/agent/src/index.ts) +Source: [`packages/core/agent/src/index.ts:145`](../../packages/core/agent/src/index.ts) ## `ctx.bash` — `BashExecutor` (abstract seam) @@ -178,12 +178,13 @@ create(id?: SessionId, options?: CreateSessionOptions): Session prepare(id?: SessionId, options?: CreateSessionOptions): Session enter(session: Session): () => void announce(session: Session): void +async flush(session: Session): Promise get(id: SessionId): Session | undefined list(): Session[] fork(source: SessionForkSource, boundary?: number, childSessionId?: SessionId): Session ``` -Source: [`packages/core/session/src/index.ts:405`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:427`](../../packages/core/session/src/index.ts) ## `ctx.subagents` — `SubagentService` @@ -204,27 +205,32 @@ Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, ```ts cordis-catalog section(section: PromptSection): () => void -tools(provider: () => ToolSchema[]): () => void +tools(provider: (context: AssembleContext) => ToolProviderResult): () => void variable(name: string, provider: (context: AssembleContext) => string | undefined): () => void async assemble(context: AssembleContext = {}): Promise ``` -Source: [`packages/core/system-prompt/src/index.ts:291`](../../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:335`](../../packages/core/system-prompt/src/index.ts) ## `ctx.tools` — `ToolRegistry` Tool registry (`ctx.tools`): tool plugins register definitions; the agent loop executes calls through the `tools/pre-execute` → dispatch → `tools/post-execute` pipeline. The registry contributes its schemas into the system-prompt assembly. +Two registration layers (`@deepseek-ai/dsh-scope`): a registration through a plain plugin context is GLOBAL (visible to every agent); one through a scoped context (`agent.ctx`) is filed in that scope's layer — visible to that agent alone, disposed with the scope, and SHADOWING a global tool of the same name for that agent (most-specific-wins; within one layer a duplicate name still throws). restrict masks the global layer per scope. One visibility function (visible) feeds prompt assembly, get, and execute, so what the model is shown, what a presenter renders, and what dispatches can never disagree. + ```ts cordis-catalog register(definition: ToolDefinition): () => void -get(name: string): ToolDefinition | undefined -schemas(): ToolSchema[] +restrict(filter: ToolRestriction): () => void +visible(scope?: ScopeKey): ToolDefinition[] +get(name: string, scope?: ScopeKey): ToolDefinition | undefined +schemas(scope?: ScopeKey): ToolSchema[] +knownNames(scope?: ScopeKey): string[] async execute(exec: ToolExecution): Promise ``` Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:278`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:319`](../../packages/core/tools/src/index.ts) ## `ctx.web` — `WebService` diff --git a/docs/module-graph.md b/docs/module-graph.md index 9461c746d2..d17352fa27 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -89,13 +89,16 @@ flowchart TD pkg_llm_pi_ai --> pkg_llm pkg_session --> pkg_brand pkg_session --> pkg_llm + pkg_session --> pkg_scope pkg_system_prompt --> pkg_llm + pkg_system_prompt --> pkg_scope pkg_bash_local --> pkg_bash pkg_fs --> pkg_brand pkg_fs --> pkg_llm pkg_web --> pkg_llm pkg_agent --> pkg_brand pkg_agent --> pkg_llm + pkg_agent --> pkg_scope pkg_agent --> pkg_session pkg_agent --> pkg_system_prompt pkg_fs_local --> pkg_fs @@ -113,6 +116,7 @@ flowchart TD pkg_llm_replay --> pkg_session pkg_tools --> pkg_agent pkg_tools --> pkg_llm + pkg_tools --> pkg_scope pkg_tools --> pkg_system_prompt pkg_compact_basic --> pkg_agent pkg_compact_basic --> pkg_compact @@ -127,6 +131,7 @@ flowchart TD pkg_invariants --> pkg_session pkg_agent_loop --> pkg_agent pkg_agent_loop --> pkg_llm + pkg_agent_loop --> pkg_scope pkg_agent_loop --> pkg_session pkg_agent_loop --> pkg_session_persistence pkg_agent_loop --> pkg_system_prompt @@ -220,12 +225,12 @@ flowchart TD | [`bash`](../packages/bash/bash) | `bash` | [`brand`](../packages/util/brand) | | [`llm-deepseek`](../packages/llm/llm-deepseek) | `llm` | [`llm`](../packages/llm/llm) | | [`llm-pi-ai`](../packages/llm/llm-pi-ai) | `llm` | [`llm`](../packages/llm/llm) | -| [`session`](../packages/core/session) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | -| [`system-prompt`](../packages/core/system-prompt) | `core` | [`llm`](../packages/llm/llm) | +| [`session`](../packages/core/session) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope) | +| [`system-prompt`](../packages/core/system-prompt) | `core` | [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope) | | [`bash-local`](../packages/bash/bash-local) | `bash` | [`bash`](../packages/bash/bash) | | [`fs`](../packages/fs/fs) | `fs` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | | [`web`](../packages/web/web) | `web` | [`llm`](../packages/llm/llm) | -| [`agent`](../packages/core/agent) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | +| [`agent`](../packages/core/agent) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`fs-local`](../packages/fs/fs-local) | `fs` | [`fs`](../packages/fs/fs) | | [`fs-policy`](../packages/fs/fs-policy) | `fs` | [`fs`](../packages/fs/fs) | | [`compact`](../packages/compact/compact) | `compact` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | @@ -236,12 +241,12 @@ flowchart TD | [`hook-protocol`](../packages/hooks/hook-protocol) | `hooks` | [`bash`](../packages/bash/bash), [`session`](../packages/core/session) | | [`session-persistence`](../packages/session-persistence/session-persistence) | `session-persistence` | [`session`](../packages/core/session) | | [`llm-replay`](../packages/support/llm-replay) | `support` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | -| [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt) | +| [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`system-prompt`](../packages/core/system-prompt) | | [`compact-basic`](../packages/compact/compact-basic) | `compact` | [`agent`](../packages/core/agent), [`compact`](../packages/compact/compact), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`invariants`](../packages/support/invariants) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | -| [`agent-loop`](../packages/core/agent-loop) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | +| [`agent-loop`](../packages/core/agent-loop) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-fs`](../packages/fs/tool-fs) | `fs` | [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`subagent`](../packages/subagent/subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`tools`](../packages/core/tools) | From 67cb9a591d8790919d804c481912d6da856c7f9b Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 01:36:14 +0800 Subject: [PATCH 088/232] docs: teach graph generator the scoped-dispatch spellings; sync Agent type-equiv block The producer/consumer matrix reads dispatch sites statically; the fused agentEvents dispatcher, the agent's loopCtx handle, the session store's captured emitCtx, and carrier-first argument lists were invisible to it, silently dropping agent-loop/session as producers of every scoped event. The generator now recognizes those spellings; the Agent type-equiv doc block gains readonly ctx. --- docs/core-data-structures/core.md | 8 +++++++ docs/event-producer-consumer.md | 38 +++++++++++++++---------------- scripts/gen-doc-graphs.ts | 17 ++++++++++++-- 3 files changed, 42 insertions(+), 21 deletions(-) diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index 615c222d94..158a52795f 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -244,6 +244,14 @@ interface Agent { readonly session: Session readonly status: AgentStatus + /** + * The agent's scope context (`@deepseek-ai/dsh-scope`, key = this agent): + * registrations through it — tools, prompt sections/variables, listeners, + * restrictions — are visible to this agent only and unwind when it is + * disposed; `agent.ctx.on('agent/…')` listeners fire only for this agent. + */ + readonly ctx: Context + /** Queue a user message. Starts a turn when idle; otherwise waits for the next turn. */ send(content: ContentBlock[], options?: SendOptions): void diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index c10d7caa52..3306a22cef 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -7,32 +7,32 @@ This matrix shows which packages dispatch each harness-owned event and which pac | Event | Mode | Declared in | Dispatchers | Listeners | | --- | --- | --- | --- | --- | -| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:264`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:271`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:420`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:349`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | -| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:362`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:289`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:385`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:304`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:280`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:395`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:408`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:286`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:298`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:492`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:396`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | +| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:414`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:326`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:442`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:346`](../packages/core/agent/src/types.ts) | - | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:312`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:457`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:475`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `llm/stream` | `waterfall` | [`packages/llm/llm/src/index.ts:39`](../packages/llm/llm/src/index.ts) | [`llm`](../packages/llm/llm) (`waterfall`) | [`invariants`](../packages/support/invariants), [`llm-replay`](../packages/support/llm-replay) | -| `session/created` | `emit` | [`packages/core/session/src/index.ts:39`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence) | -| `session/event` | `emit` | [`packages/core/session/src/index.ts:47`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence), [`stdio-agent`](../packages/ui/stdio-agent) | -| `session/flush` | `parallel` | [`packages/core/session/src/index.ts:57`](../packages/core/session/src/index.ts) | [`agent-loop`](../packages/core/agent-loop) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | +| `session/created` | `emit` | [`packages/core/session/src/index.ts:47`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence) | +| `session/event` | `emit` | [`packages/core/session/src/index.ts:61`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence), [`stdio-agent`](../packages/ui/stdio-agent) | +| `session/flush` | `parallel` | [`packages/core/session/src/index.ts:79`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | | `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:98`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:72`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | | `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:83`](../packages/subagent/subagent/src/index.ts) | - | [`tool-subagent`](../packages/subagent/tool-subagent) | | `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:91`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | -| `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:38`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | -| `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:44`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | -| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:97`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | -| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:92`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:76`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:44`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | +| `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:54`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | +| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:112`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | +| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:102`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:82`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | Maintenance mode: hybrid generated: Cordis event declarations and most producer/listener edges are AST-scanned; dynamic dispatch sites are classified in `scripts/gen-doc-graphs.ts`. diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 6440a672be..54f52ead18 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -520,7 +520,15 @@ function collectEventRelations(): Map { function isCordisContextReceiver(expr: ts.PropertyAccessExpression, sf: ts.SourceFile): boolean { const target = expr.expression.getText(sf) - return target === 'ctx' || target === 'this.ctx' + if (target === 'ctx' || target === 'this.ctx') return true + // Scoped-dispatch spellings (the agent-scoping seam): the loop's fused + // dispatcher (`events` from `agentEvents(ctx, agent)`), the agent's own + // context handle (`this.loopCtx`), and the session store's captured + // dispatch context (`emitCtx`). Conventional receiver names, pinned by the + // fused-dispatch convention; a rename here must update this list (the + // producer/consumer matrix silently losing a dispatcher is the failure + // mode this list exists to prevent). + return target === 'events' || target === 'this.loopCtx' || target === 'emitCtx' } function eventArg(args: ts.NodeArray, method: string): string | undefined { @@ -529,7 +537,12 @@ function eventArg(args: ts.NodeArray, method: string): string | u return arg?.text } const first = args[0] - return first && ts.isStringLiteralLike(first) ? first.text : undefined + if (first && ts.isStringLiteralLike(first)) return first.text + // Scope-carrier dispatch: `emit(carrier, 'event/name', …)` puts the event + // name second. Accept a string literal in position 1 when position 0 is a + // non-literal expression (the carrier). + const second = args[1] + return second && ts.isStringLiteralLike(second) ? second.text : undefined } function relationPackages(map: Map>, pkgsByShort: Map): string { From 15f4d1cd03a1686dee729a74b97a1ce6db703f64 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 02:10:06 +0800 Subject: [PATCH 089/232] feat(subagent): persona + toolFilter become real; structured runtime collapses to scoped registrations MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit SubagentStartRequest gains persona (capability-gated like toolFilter); the in-process driver composes the child's scoped world in the factory's setup window — persona as a scoped shadowing deployment:persona section, toolFilter as a scoped tools.restrict() (loud unknown-name validation), outputSchema as the scoped structured runtime. spawn/fork now advertise every start-time capability; ACP stays all-false. A parent-scope teardown effect links each child to its parent through the memoized handle, so a disposed parent reaches its whole subtree even if the delegating tool's finally never runs; subagent/start|end dispatch in the delegating parent's scope. structured.ts loses the placeholder schema, the final-assembly swap/strip, the refcounted root runtime, and the WeakMap state: each child registers its OWN capture tool (real schema), instruction section, and enforcement listeners on child.ctx, riding the child's fiber. The commit listener is call-keyed (a stale stage from a short-circuited post-execute chain is dropped, never promoted on a later call), and one scoped prepend re-assert listener preserves the final-assembly guarantee against a stripping global listener. tool-subagent gains persona/toolFilter/maxDepth passthrough config — deny-listing the delegation tool (or maxDepth) is how a deployment bounds recursion; the omitted-toolFilter schema key is forced absent (a materialized {} would mean an empty allow-list, i.e. deny-everything). --- packages/subagent/subagent-acp/src/index.ts | 2 +- .../subagent-acp/tests/subagent-acp.spec.ts | 2 +- packages/subagent/subagent-fork/src/index.ts | 6 +- .../subagent-fork/tests/subagent-fork.spec.ts | 4 +- .../subagent/subagent-inprocess/src/index.ts | 73 +++- .../subagent-inprocess/src/structured.ts | 400 ++++++------------ .../tests/structured.spec.ts | 206 ++------- packages/subagent/subagent-spawn/src/index.ts | 11 +- .../tests/subagent-spawn.spec.ts | 65 ++- packages/subagent/subagent/src/index.ts | 24 +- packages/subagent/subagent/src/types.ts | 15 +- .../subagent/subagent/tests/service.spec.ts | 4 +- packages/subagent/tool-subagent/src/index.ts | 44 +- .../tool-subagent/tests/tool-subagent.spec.ts | 14 +- packages/support/subagent-mock/src/index.ts | 3 +- 15 files changed, 398 insertions(+), 475 deletions(-) diff --git a/packages/subagent/subagent-acp/src/index.ts b/packages/subagent/subagent-acp/src/index.ts index b2ddd9ab2d..dd0aeb5aea 100644 --- a/packages/subagent/subagent-acp/src/index.ts +++ b/packages/subagent/subagent-acp/src/index.ts @@ -89,7 +89,7 @@ type ResolvedConfig = Required> & Pick * a request needing any of them before `start` runs). */ class AcpProvider implements SubagentProvider { - readonly capabilities: SubagentCapabilities = { outputSchema: false, depthLimit: false, toolFilter: false } + readonly capabilities: SubagentCapabilities = { outputSchema: false, depthLimit: false, toolFilter: false, persona: false } // Context contract: an out-of-process ACP child starts fresh — no parent conversation crosses the process boundary. readonly inheritsParentContext = false diff --git a/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts b/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts index 3eb12fac38..6bf3413485 100644 --- a/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts +++ b/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts @@ -530,7 +530,7 @@ describe('dsh-subagent-acp', () => { it('advertises no start-time capabilities (out-of-process child)', async () => { const ctx = await setup() const provider = ctx.subagents.getProvider('acp')! - expect(provider.capabilities).toEqual({ outputSchema: false, depthLimit: false, toolFilter: false }) + expect(provider.capabilities).toEqual({ outputSchema: false, depthLimit: false, toolFilter: false, persona: false }) }) it('unregisters the provider when its fiber is disposed (HMR safety)', async () => { diff --git a/packages/subagent/subagent-fork/src/index.ts b/packages/subagent/subagent-fork/src/index.ts index d8c77a03ac..de650fa4cd 100644 --- a/packages/subagent/subagent-fork/src/index.ts +++ b/packages/subagent/subagent-fork/src/index.ts @@ -64,11 +64,11 @@ export function completedTurnPrefix(parent: Agent): SessionEvent[] { /** * The fork provider. Supports `depthLimit` and `outputSchema` (via the shared - * in-process structured runtime); NOT `toolFilter` this cut (the service - * rejects a request needing it before `start` runs). + * in-process structured runtime), plus `toolFilter`/`persona` (scoped + * restrict() and a scoped shadowing persona section). */ class ForkProvider implements SubagentProvider { - readonly capabilities: SubagentCapabilities = { outputSchema: true, depthLimit: true, toolFilter: false } + readonly capabilities: SubagentCapabilities = { outputSchema: true, depthLimit: true, toolFilter: true, persona: true } // Context contract: a forked child IS seeded with the parent's completed-turn prefix. readonly inheritsParentContext = true diff --git a/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts b/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts index 90e2d583d8..5356eba6e0 100644 --- a/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts +++ b/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts @@ -182,9 +182,9 @@ describe('dsh-subagent-fork', () => { await run.dispose() }) - it('advertises depthLimit and outputSchema but not toolFilter', async () => { + it('advertises every start-time capability (depthLimit, outputSchema, toolFilter, persona)', async () => { const { ctx } = await setup([]) - expect(ctx.subagents.getProvider('fork')!.capabilities).toEqual({ outputSchema: true, depthLimit: true, toolFilter: false }) + expect(ctx.subagents.getProvider('fork')!.capabilities).toEqual({ outputSchema: true, depthLimit: true, toolFilter: true, persona: true }) }) it('unregisters the provider when its fiber is disposed (HMR safety)', async () => { diff --git a/packages/subagent/subagent-inprocess/src/index.ts b/packages/subagent/subagent-inprocess/src/index.ts index 9026954b97..889a8afb5d 100644 --- a/packages/subagent/subagent-inprocess/src/index.ts +++ b/packages/subagent/subagent-inprocess/src/index.ts @@ -21,13 +21,13 @@ import type { ContentBlock } from '@deepseek-ai/dsh-llm' import { assertSupportedOutputSchema } from '@deepseek-ai/dsh-tools' import type { SubagentResult, SubagentRun, SubagentStartRequest, SubagentStopReason } from '@deepseek-ai/dsh-subagent' import { - acquireStructuredRuntime, - type StructuredAcquisition, + attachStructuredRuntime, + type StructuredAttachment, } from './structured.ts' -// The runtime itself (acquire/attach/release) is package-internal: runs -// acquire it inside startInProcessRun, and no other package drives it. Only -// the model-facing vocabulary is public. +// The runtime itself (attach) is package-internal: runs attach it inside +// startInProcessRun's setup window, and no other package drives it. Only the +// model-facing vocabulary is public. export { STRUCTURED_OUTPUT_TOOL, STRUCTURED_OUTPUT_INSTRUCTION, @@ -143,21 +143,36 @@ export function startInProcessRun( const seedLength = options.seed?.length ?? 0 const parentHeader = request.parent.session.header // Inherit the parent's model by default (a child with no model cannot run); - // an explicit `request.agentOptions.model` overrides it. The persona needs - // no inheritance: the deployment persona is a context-wide prompt section, - // so parent and child render the same one. A structured run's - // structured_output instruction is NOT prompt state either — the structured - // runtime's final-request listener appends it per request (see structured.ts). + // an explicit `request.agentOptions.model` overrides it. The deployment + // persona needs no inheritance (a context-wide section both render); a + // per-child `request.persona` becomes a SCOPED section of the same name in + // the setup below, shadowing the deployment's for this child alone. const agentOptions: AgentOptions = { ...request.parent.options.model !== undefined ? { model: request.parent.options.model } : {}, ...request.agentOptions, subagentDepth: childDepth, } - // The structured runtime is held for the WHOLE run (acquired before the child - // exists, released when the result settles), so a backend hot-reload mid-run - // cannot unregister the capture tool out from under this live child. - const structured: StructuredAcquisition | undefined = schema !== undefined ? acquireStructuredRuntime(ctx) : undefined + // The child's scoped world, composed in the factory's setup window (after + // the child's scope exists and it is registered, before agent/session-start + // and the first prompt assembly; a throw here unwinds the half-created + // child inside the factory's rollback boundary): + // - persona: a scoped `deployment:persona` section shadowing the global one; + // - toolFilter: a scoped restrict() masking the global tool surface + // (loud unknown-name validation lives in the registry); + // - outputSchema: the structured runtime, attached as scoped registrations. + let structured: StructuredAttachment | undefined + const setup = (childCtx: Context): void => { + if (request.persona !== undefined) { + childCtx.systemPrompt.section({ name: 'deployment:persona', order: 0, text: request.persona }) + } + if (request.toolFilter !== undefined) { + childCtx.tools.restrict(request.toolFilter) + } + if (schema !== undefined) { + structured = attachStructuredRuntime(childCtx, schema) + } + } const handle: AgentHandle = ctx.agents.create({ agentId: childId, @@ -171,9 +186,26 @@ export function startInProcessRun( }, ...options.seed !== undefined ? { seed: options.seed } : {}, agentOptions, + setup, }) const child = handle.agent - if (structured && schema !== undefined) structured.attach(child, schema) + + // Structured-concurrency link: the child's teardown rides the PARENT's + // scope, so a disposed parent reaches its whole subtree even if the + // delegating tool's `finally` never runs — through the MEMOIZED handle, so + // every path (tool finally, parent teardown, owner unload) observes the + // same quiescence boundary. Registered AFTER the child exists; if the + // parent began disposing in between, the registration throws + // INACTIVE_EFFECT — dispose the fresh child before rethrowing (no orphan). + // Definite assignment: the catch rethrows, so past this block the unlink + // disposer always exists. + let unlink!: () => Promise | void + try { + unlink = request.parent.ctx.effect(() => () => handle.dispose()) + } catch (error: unknown) { + void handle.dispose() + throw error + } // Bridge the request's abort signal to the child (the consumer also bridges // its own exec.signal, but a backend-level bridge keeps the contract local). @@ -205,13 +237,9 @@ export function startInProcessRun( // Deliberately NO re-prompt when a structured child finishes cleanly // without calling structured_output: readResult maps that to `error` — // the shortfall goes to the parent instead of buying extra model turns. - return readResult(child, seedLength, isCancelled(), structured ? { captured: structured.captured(child) } : undefined) + return readResult(child, seedLength, isCancelled(), structured ? { captured: structured.captured() } : undefined) } finally { request.signal?.removeEventListener('abort', onAbort) - if (structured) { - structured.detach(child) - structured.release() - } } })() @@ -223,6 +251,11 @@ export function startInProcessRun( }, async dispose(): Promise { request.signal?.removeEventListener('abort', onAbort) + // Through the parent-scope unlink when the parent is still live (one + // disposal path, and the dead effect leaves the parent's list); the + // memoized handle keeps a direct dispose equivalent if the parent's + // teardown already ran the unlink. + await unlink() await handle.dispose() }, } diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts index a557e44785..9d8b4cb70b 100644 --- a/packages/subagent/subagent-inprocess/src/structured.ts +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -1,63 +1,49 @@ /** - * Structured-output support for the in-process subagent backends: the mechanism - * behind `SubagentStartRequest.outputSchema` for children that run as agents on - * the same context. + * Structured-output support for the in-process subagent backends: the + * mechanism behind `SubagentStartRequest.outputSchema` for children that run + * as agents on the same context. * - * The model-facing surface is one globally registered `structured_output` tool - * whose REGISTERED parameters are a placeholder — the real schema is per run. - * Because the tool registry and prompt assembly are context-global while - * schemas differ per child (two concurrent structured runs may carry different - * schemas), per-agent shaping happens on the `system-prompt/assemble` - * waterfall with a `prepend: true` listener that post-processes `await next()` - * — FINAL-ASSEMBLY enforcement: whatever downstream listeners mutated or - * replaced, the assembly the loop renders never carries `structured_output` - * for an agent without a structured run, and for one that has it always - * carries the run's OWN schema plus a trailing - * {@link STRUCTURED_OUTPUT_INSTRUCTION} section (the demand travels with the - * tool). The loop logs what the assembly produced as the request header, so - * the injection is a reconstructable fact of the session log, never a - * wire-only mutation (the reconstructability RFC). - * (Cooperative mutate-then-`next()` would not survive a downstream listener - * returning a replacement assembly — see the waterfall composition caveat in - * docs/architecture.md.) + * Everything is a SCOPED registration on the child agent's context + * (`child.ctx`, the dsh-scope seam): the `structured_output` capture tool + * carries the run's REAL schema as its registered parameters (each child sees + * exactly its own schema — two concurrent structured runs never interact), the + * demand instruction is an ordinary order-190 scoped section, and the + * enforcement listeners fire only for this child (scope-filtered dispatch). + * Registration lifetime rides the child's fiber, so a backend hot-reload + * mid-run cannot unregister the capture tool out from under a live child, and + * a disposed child leaves no residue — no placeholder schema, no + * strip-for-everyone-else, no refcounted global runtime, no `WeakMap` state. * - * FIXME: the whole enforcement dance above exists because the tool registry - * and prompt assembly are context-global. If they become per-agent or - * per-session scoped, a structured run just registers its own schema'd tool on - * the child's scope and this module reduces to the capture tool plus the - * turn-stop — no placeholder, no final-assembly swap, no strip-for-everyone- - * else, no global-registration lifetime dance. + * Four listeners enforce the contract: * - * A companion `agent/turn-continuation` listener stops a child's turn once its - * output is captured — without it, the loop's default "had tool calls ⇒ - * continue" buys a wasted extra model step per structured child. It is also - * `prepend: true`: the veto must run before any earlier-registered listener - * that could short-circuit the chain into a forced continue. A third listener - * closes the within-step window the continuation veto cannot: a - * `tools/pre-execute` deny for any call arriving after the agent's capture, so - * a response that lists `structured_output` before further tool calls cannot - * run side effects after the final answer was accepted. A fourth, - * `tools/post-execute`, is the capture COMMIT: the tool body only stages the - * validated value, and it becomes the run's captured result only when the - * final post-execute decision accepts the call — a blocking hook downstream - * yields `isError` in the log, and the run must not report success for it. - * - * Lifetime is refcounted by structured RUNS: each acquires from start to - * settle, so the registrations exist exactly while at least one structured - * child is live — a plain deployment that never passes `outputSchema` carries - * no always-on global state, and a backend hot-reload mid-run cannot - * unregister the capture tool out from under a live child (the run holds its - * own acquisition). Registrations land on the ROOT context and the refcount - * disposes them when the last run settles; the next structured run - * re-registers them. + * - `system-prompt/assemble` (prepend, scoped): FINAL-ASSEMBLY re-assert — + * whatever downstream listeners mutated or replaced, the child's assembly + * always carries its capture tool and the trailing instruction section. The + * registry already contributes both; this outermost wrapper preserves the + * guarantee against a (global) listener that strips or replaces the + * assembly. The loop logs the rendered assembly as the request header, so + * the demand is reconstructable log state, never a wire-only mutation. + * - `agent/turn-continuation` (prepend, scoped): stop the child's turn once + * its output is captured — the loop's default "had tool calls ⇒ continue" + * would buy a wasted extra model step per structured child. + * - `tools/pre-execute` (prepend, scoped): terminal means terminal WITHIN the + * step — deny every call arriving after the capture, so a response that + * lists `structured_output` before further tool calls cannot run side + * effects after the final answer was accepted. + * - `tools/post-execute` (prepend, scoped): the capture COMMIT. The tool body + * only STAGES the validated value, KEYED BY CALL ID; it becomes the run's + * captured result only when the final post-execute decision accepts THAT + * call. Call-keyed staging closes a stale-stage hole: an outer + * short-circuiting post-execute listener can orphan a staged value, and an + * un-keyed commit would then promote it on a LATER call's acceptance — + * reporting success for a value the model saw fail. * * @module @deepseek-ai/dsh-subagent-inprocess/structured */ import type { Context } from 'cordis' -import type { Agent } from '@deepseek-ai/dsh-agent' -import type { ContentBlock, ToolSchema } from '@deepseek-ai/dsh-llm' -import type { ContinuationDecision } from '@deepseek-ai/dsh-agent' +import type { Agent, ContinuationDecision } from '@deepseek-ai/dsh-agent' +import type { CallId, ContentBlock, ToolSchema } from '@deepseek-ai/dsh-llm' import type { AssembleContext, PromptAssembly } from '@deepseek-ai/dsh-system-prompt' import type { PostToolDecision, PreToolDecision, ToolExecution, ToolExecutionResult } from '@deepseek-ai/dsh-tools' import { ToolArgsError, validateStructuredValue, type StructuredOutputSchema } from '@deepseek-ai/dsh-tools' @@ -66,247 +52,141 @@ import { ToolArgsError, validateStructuredValue, type StructuredOutputSchema } f export const STRUCTURED_OUTPUT_TOOL = 'structured_output' /** - * The instruction the assembly listener appends to a structured child's - * system prompt as a trailing section on every assembly. Per-assembly state, - * NOT agent prompt state: `AgentOptions` has no prompt field (the persona is - * deployment config on the system-prompt plugin), so the same final-assembly - * enforcement that injects the schema'd tool carries the instruction that - * demands calling it. + * The instruction registered as the child's trailing (order-190, the end of + * the tool-guidance band) scoped prompt section: the demand travels with the + * tool, as ordinary prompt state of exactly one agent. */ export const STRUCTURED_OUTPUT_INSTRUCTION = 'When you have your final answer, you MUST report it by calling the ' + `\`${STRUCTURED_OUTPUT_TOOL}\` tool with arguments matching its parameter schema exactly. ` + 'Do not finish with a plain text answer: only the tool call counts as your result.' -/** One structured run's state: the schema to enforce and the captured value, once recorded. */ -interface RunState { - readonly schema: StructuredOutputSchema +/** One structured run's live handle: read the captured value once the child settles. */ +export interface StructuredAttachment { /** - * A validated value awaiting the post-execute verdict on ITS OWN call. Set - * by the capture tool's body, promoted to {@link RunState.captured} only - * when the final `tools/post-execute` decision accepts the call — a - * downstream block turns the logged result into `isError`, and a value - * committed at body time would let the run report success for a call the - * model saw fail. + * The captured value, once the child called the tool with valid arguments + * and the final post-execute decision accepted that call. + * @returns the committed value, or undefined while none was accepted. */ - pending?: { value: unknown } - captured?: { value: unknown } -} - -/** The per-root-context runtime: run states plus the shared registrations. */ -interface StructuredRuntime { - refs: number - readonly states: WeakMap - readonly disposers: (() => void)[] -} - -/** One root context ⇒ one runtime (multi-app test isolation). */ -const runtimes = new WeakMap() - -/** - * One holder's handle on the shared structured runtime. `release()` is - * idempotent per acquisition; the runtime's registrations are disposed when the - * LAST holder (backend plugin or live run) releases. - */ -export interface StructuredAcquisition { - /** Enforce `schema` on `agent`'s requests and start capturing its `structured_output` call. */ - attach(agent: Agent, schema: StructuredOutputSchema): void - /** The captured value, once the child called the tool with valid arguments. */ - captured(agent: Agent): { value: unknown } | undefined - /** Stop enforcing/capturing for `agent` (WeakMap-backed; safe to call twice). */ - detach(agent: Agent): void - /** Drop this holder's reference (idempotent); the last release unregisters everything. */ - release(): void + captured(): { value: unknown } | undefined } /** - * Acquire the per-root-context structured runtime, registering the capture tool - * and the runtime's listeners on the FIRST acquisition. See the module doc - * for the enforcement and lifetime design. - * @param ctx - any context of the app; the runtime keys off `ctx.root`. - * @returns this holder's handle (attach/captured/detach + idempotent release). + * Attach the structured-output runtime to a child for `schema`: register the + * scoped capture tool (real schema), the scoped instruction section, and the + * four scoped enforcement listeners (see the module doc). Call from the + * agent-creation `setup` window with the child's scope context — every + * registration rides the child's fiber and unwinds with the child. + * @param childCtx - the child agent's scope context (`setup`'s argument). + * @param schema - the isolation-cloned, already-asserted schema subset to + * enforce (see `assertSupportedOutputSchema` in dsh-tools). + * @returns the attachment handle (read `captured()` after the child settles). */ -export function acquireStructuredRuntime(ctx: Context): StructuredAcquisition { - const root: Context = ctx.root - let runtime = runtimes.get(root) - if (!runtime) { - runtime = { refs: 0, states: new WeakMap(), disposers: [] } - runtimes.set(root, runtime) - registerRuntime(root, runtime) - } - runtime.refs += 1 +export function attachStructuredRuntime(childCtx: Context, schema: StructuredOutputSchema): StructuredAttachment { + /** A validated value staged by the capture tool body, awaiting ITS OWN call's post-execute verdict. */ + let pending: { callId: CallId; value: unknown } | undefined + let captured: { value: unknown } | undefined - let released = false - return { - attach(agent: Agent, schema: StructuredOutputSchema): void { - runtime.states.set(agent, { schema }) - }, - captured(agent: Agent): { value: unknown } | undefined { - return runtime.states.get(agent)?.captured - }, - detach(agent: Agent): void { - runtime.states.delete(agent) - }, - release(): void { - if (released) return - released = true - runtime.refs -= 1 - if (runtime.refs > 0) return - runtimes.delete(root) - for (const dispose of runtime.disposers.splice(0)) dispose() - }, + const schemaEntry: ToolSchema = { + name: STRUCTURED_OUTPUT_TOOL, + description: + 'Report your final structured result. Call this exactly once, when your answer is complete; ' + + 'the arguments must match this tool\'s parameter schema exactly.', + // ToolSchema.parameters is the wire-level JSON Schema object; the + // asserted subset type is structurally exactly that. + parameters: schema as unknown as Record, } -} -/** Register the capture tool + the two listeners on the root context (first acquire). */ -function registerRuntime(root: Context, runtime: StructuredRuntime): void { - // The registered parameters are a PLACEHOLDER: the request listener below - // swaps in the run's real schema per child, and strips the tool entirely for - // every agent without a structured run — so this shape is never model-visible. - // - // Registration does NOT ride on the acquiring backend's plugin-level - // `inject`: a backend that waited on `tools` would apply later than it did - // before this module existed, shifting when its PROVIDER registers — and the - // delegation tool mirrors provider lifecycle, so that shift would reorder - // the model-visible tool list of every existing prompt. Instead the capture - // tool registers synchronously when `tools` is already live (the common - // case), and through a scoped inject fiber when the Loader happens to start - // the backend first. Either way the registration lands on root and is - // disposed by the runtime's refcount; disposing the fiber also covers the - // never-activated case. - let disposeTool: (() => void) | undefined - const registerCapture = (tools: Context['tools']): void => { - disposeTool = tools.register({ - name: STRUCTURED_OUTPUT_TOOL, - description: - 'Report your final structured result. Call this exactly once, when your answer is complete; ' - + 'the arguments must match this tool\'s parameter schema exactly.', - parameters: { type: 'object', properties: {} }, - execute(args: unknown, exec: ToolExecution): Promise { - const state = exec.agent ? runtime.states.get(exec.agent) : undefined - if (!state) { - // Reachable only if a non-structured agent somehow calls the tool (the - // request listener strips it, so the model never sees it) — fail loud - // rather than capture into nowhere. - throw new Error(`${STRUCTURED_OUTPUT_TOOL} is only available to subagents started with an output schema`) - } - const violations = validateStructuredValue(state.schema, args) - // ToolArgsError → isError result with INVALID_ARGS: the model retries - // within the same turn, exactly like a schema-validated defineTool call. - if (violations.length > 0) throw new ToolArgsError(violations) - // Two-phase commit: the body only STAGES the value; the post-execute - // listener below promotes it once the final decision accepts the call. - state.pending = { value: args } - return Promise.resolve([{ type: 'text', text: 'Structured output recorded.' }]) - }, - }) - } - const liveTools = root.get('tools') - const toolsFiber = liveTools ? undefined : root.inject(['tools'], (childCtx: Context) => { - registerCapture(childCtx.root.tools) - }) - if (liveTools) registerCapture(liveTools) - runtime.disposers.push(() => { - disposeTool?.() - void toolsFiber?.dispose() + childCtx.tools.register({ + ...schemaEntry, + execute(args: unknown, exec: ToolExecution): Promise { + const violations = validateStructuredValue(schema, args) + // ToolArgsError → isError result with INVALID_ARGS: the model retries + // within the same turn, exactly like a schema-validated defineTool call. + if (violations.length > 0) throw new ToolArgsError(violations) + // Two-phase commit, KEYED BY THIS CALL: the body only stages; the + // post-execute listener promotes exactly this call's entry when the + // final decision accepts it. + pending = { callId: exec.callId, value: args } + return Promise.resolve([{ type: 'text', text: 'Structured output recorded.' }]) + }, }) - // FINAL-ASSEMBLY enforcement (prepend: true = first registered = OUTERMOST - // wrapper): post-process whatever the downstream listeners and the registry - // produced, so a downstream listener returning a replacement assembly cannot - // leak the tool to other agents or erase the child's schema. The loop logs - // the rendered assembly as the step's request header, so the swap is - // reconstructable log state, never a wire-only mutation. - runtime.disposers.push(root.on('system-prompt/assemble', async function ( - this: unknown, _assembly: PromptAssembly, context: AssembleContext, next: () => Promise, + childCtx.systemPrompt.section({ + name: `tool:${STRUCTURED_OUTPUT_TOOL}`, + order: 190, + text: STRUCTURED_OUTPUT_INSTRUCTION, + }) + + // FINAL-ASSEMBLY re-assert (prepend = outermost): scoped dispatch means this + // fires only for the child's assemblies; `await next()` returns whatever the + // downstream chain (and any replacement assembly) produced, and the capture + // tool + instruction are re-asserted onto it if anything stripped them. + childCtx.on('system-prompt/assemble', async function ( + this: unknown, _assembly: PromptAssembly, _context: AssembleContext, next: () => Promise, ): Promise { const final = await next() - const state = context.agent ? runtime.states.get(context.agent) : undefined - if (state) { - const schemaEntry: ToolSchema = { - name: STRUCTURED_OUTPUT_TOOL, - description: - 'Report your final structured result. Call this exactly once, when your answer is complete; ' - + 'the arguments must match this tool\'s parameter schema exactly.', - // ToolSchema.parameters is the wire-level JSON Schema object; the - // asserted subset type is structurally exactly that. - parameters: state.schema as unknown as Record, - } - final.tools = [...final.tools.filter(tool => tool.name !== STRUCTURED_OUTPUT_TOOL), schemaEntry] - // The demand travels WITH the tool: a trailing section in the - // tool-guidance order band, appended after next() so it renders last - // (renderPrompt joins in array order). + if (!final.tools.some(tool => tool.name === STRUCTURED_OUTPUT_TOOL)) { + final.tools = [...final.tools, { ...schemaEntry, parameters: structuredClone(schemaEntry.parameters) }] + } + if (!final.sections.some(section => section.name === `tool:${STRUCTURED_OUTPUT_TOOL}`)) { final.sections = [...final.sections, { name: `tool:${STRUCTURED_OUTPUT_TOOL}`, order: 190, text: STRUCTURED_OUTPUT_INSTRUCTION }] - return final } - // No structured run: strip the placeholder so it is never model-visible. - // An empty tools array canonicalizes to an absent header/wire field - // (canonicalHeader pins empty ≡ absent), so no re-shaping is needed here. - final.tools = final.tools.filter(tool => tool.name !== STRUCTURED_OUTPUT_TOOL) return final - }, { prepend: true })) + }, { prepend: true }) - // Stop a structured child's turn once its output is captured: the default - // "had tool calls ⇒ continue" would otherwise buy a wasted extra model step - // after every successful capture. `prepend: true` puts the veto OUTERMOST — - // an earlier-registered listener that short-circuits the chain (a goal-style - // force-continue returning without `next()`) would otherwise decide the turn - // before this listener ever ran, and no downstream decision may resurrect a - // structured turn that is already finished. - runtime.disposers.push(root.on('agent/turn-continuation', function ( - this: unknown, agent: Agent, _turn: number, _decision: ContinuationDecision, next: () => Promise, + // Stop the child's turn once its output is captured. `prepend: true` puts + // the veto OUTERMOST — an earlier-registered listener that short-circuits + // the chain (a goal-style force-continue returning without `next()`) would + // otherwise decide the turn before this listener ever ran, and no + // downstream decision may resurrect a structured turn that is finished. + childCtx.on('agent/turn-continuation', function ( + this: unknown, _agent: Agent, _turn: number, _decision: ContinuationDecision, next: () => Promise, ): Promise { - if (runtime.states.get(agent)?.captured) return Promise.resolve({ action: 'stop' }) + if (captured) return Promise.resolve({ action: 'stop' }) return next() - }, { prepend: true })) + }, { prepend: true }) - // The capture COMMIT: promote the staged value only when the final - // post-execute decision accepts the call. The capture tool's body cannot - // decide — `tools/post-execute` runs after it, and a blocking listener (a - // PostToolUse hook) turns the logged result into `isError` feedback; a value - // committed at body time would make readResult report `structured` success - // for a call whose result the model and session log saw fail. `prepend: - // true` = outermost at registration time, so `await next()` returns the - // COMPOSED downstream decision — the same final verdict the registry maps - // onto the result. (A later-registered outer listener that blocks without - // delegating skips this commit entirely: the staged value is dropped and the - // run errors — failure-safe in the same direction.) The staging slot clears - // on every path, including a rejecting downstream listener. - runtime.disposers.push(root.on('tools/post-execute', async function ( - this: unknown, exec: ToolExecution, _result: ToolExecutionResult, next: () => Promise, - ): Promise { - const state = exec.agent ? runtime.states.get(exec.agent) : undefined - if (!state || exec.name !== STRUCTURED_OUTPUT_TOOL || state.pending === undefined) return next() - const pending = state.pending - try { - const decision = await next() - if (decision.kind === 'accept') state.captured = pending - return decision - } finally { - delete state.pending - } - }, { prepend: true })) - - // Terminal means terminal WITHIN the step, not only at its end: the - // turn-continuation veto above runs after every call in the current model - // response has executed, so a response that puts `structured_output` before - // further tool calls would still perform those side effects after the final - // answer was accepted. Deny every later call for a captured agent at the - // allow/deny gate — dispatch is skipped and the model sees an `isError` - // result naming the contract. Calls that PRECEDE the capture in the same - // response ran before `captured` was set and are untouched; a second - // `structured_output` is denied like any other call. `prepend: true` for the - // same reason as the continuation veto: no earlier-registered allow may - // short-circuit past the terminal contract. - runtime.disposers.push(root.on('tools/pre-execute', function ( + // Terminal WITHIN the step: deny every call after the capture. Calls that + // PRECEDE the capture in the same response ran before `captured` was set + // and are untouched; a second `structured_output` is denied like any other. + childCtx.on('tools/pre-execute', function ( this: unknown, exec: ToolExecution, next: () => Promise, ): Promise { - if (exec.agent && runtime.states.get(exec.agent)?.captured) { + if (captured) { return Promise.resolve({ kind: 'deny', reason: `structured output already recorded: the run is complete, so \`${exec.name}\` is not executed`, }) } return next() - }, { prepend: true })) + }, { prepend: true }) + + // The capture COMMIT: promote the staged value only when the final + // post-execute decision accepts THE SAME CALL that staged it. The staging + // slot clears on every path for that call; a stale entry from an outer + // short-circuited chain (its verdict never reached us) is dropped when any + // later call reaches the commit, never promoted. + childCtx.on('tools/post-execute', async function ( + this: unknown, exec: ToolExecution, _result: ToolExecutionResult, next: () => Promise, + ): Promise { + if (exec.name !== STRUCTURED_OUTPUT_TOOL || pending === undefined) return next() + if (pending.callId !== exec.callId) { + // A stale stage from a different call: an outer listener short-circuited + // that call's post-execute chain past this commit, so its verdict never + // reached us and the value must never be promoted — drop it. + pending = undefined + return next() + } + const staged = pending + try { + const decision = await next() + if (decision.kind === 'accept') captured = { value: staged.value } + return decision + } finally { + if (pending === staged) pending = undefined + } + }, { prepend: true }) + + return { captured: () => captured } } diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index 0de036a0a0..3d676c3848 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -5,7 +5,7 @@ import SessionStore from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' import AgentRegistry, { AgentId } from '@deepseek-ai/dsh-agent' -import type { Agent, ContinuationDecision } from '@deepseek-ai/dsh-agent' +import type { ContinuationDecision } from '@deepseek-ai/dsh-agent' import AgentLoop from '@deepseek-ai/dsh-agent-loop' import * as Invariants from '@deepseek-ai/dsh-invariants' import SubagentService, { type SubagentStartRequest } from '@deepseek-ai/dsh-subagent' @@ -13,7 +13,6 @@ import type { StructuredOutputSchema } from '@deepseek-ai/dsh-tools' import { MockAdapter, textResponse, toolCallResponse } from '../../../core/agent-loop/tests/mock-adapter.ts' import { startInProcessRun } from '../src/index.ts' import { - acquireStructuredRuntime, STRUCTURED_OUTPUT_INSTRUCTION, STRUCTURED_OUTPUT_TOOL, } from '../src/structured.ts' @@ -47,7 +46,7 @@ async function setup(script: Script) { await ctx.plugin(SubagentService) const disposeProvider = ctx.subagents.registerProvider({ name: 'spawn', - capabilities: { outputSchema: true, depthLimit: true, toolFilter: false }, + capabilities: { outputSchema: true, depthLimit: true, toolFilter: false, persona: false }, inheritsParentContext: false, start: (request: SubagentStartRequest) => startInProcessRun(ctx, request, { providerName: 'spawn' }), }) @@ -175,31 +174,20 @@ describe('in-process structured output', () => { }) it('the captured-turn veto is prepend: an EARLIER force-continue listener cannot short-circuit it', async () => { - const ctx = new Context() - await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) - // Registered BEFORE the structured runtime exists — without prepend, this - // goal-style listener would decide the turn first (returning WITHOUT - // calling next()) and the veto would never run. + // A goal-style listener registered BEFORE the child exists, returning a + // forced continue WITHOUT calling next(). Without prepend on the scoped + // veto, this would decide the turn first and buy a wasted model step — + // the one-response script would then throw on the second request. + const { ctx, parent, adapter } = await setup([ + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 7 }), + ]) ctx.on('agent/turn-continuation', () => Promise.resolve({ action: 'continue' })) - const acquisition = acquireStructuredRuntime(ctx) - const agent = { id: AgentId('structured-child') } as unknown as Agent - acquisition.attach(agent, SCHEMA) - const captured = await ctx.tools.execute({ - callId: 'call-1' as never, - name: STRUCTURED_OUTPUT_TOOL, - arguments: { answer: 1 }, - agent, - }) - expect(captured.isError).toBeFalsy() - const decision = await ctx.waterfall( - 'agent/turn-continuation', agent, 1, - { action: 'continue' }, - () => Promise.resolve({ action: 'continue' }), - ) - expect(decision).toEqual({ action: 'stop' }) - acquisition.detach(agent) - acquisition.release() + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + const result = await run.result + expect(result.structured).toEqual({ answer: 7 }) + expect(result.stopReason).toBe('completed') + expect(adapter.requests).toHaveLength(1) + await run.dispose() }) it('an invalid call gets an INVALID_ARGS isError result and the model retries in-turn', async () => { @@ -357,20 +345,14 @@ describe('in-process structured output', () => { await run.dispose() }) - describe('final-request enforcement (the prepend agent/request listener)', () => { - it('a plain agent assembling while the runtime is LIVE gets the placeholder stripped', async () => { - // Run-scoped acquisition means a plain deployment never registers the - // tool at all; the strip branch exists for the CONCURRENT case — a plain - // agent taking a turn while some structured child holds the runtime open. + describe('scoped registration (each child owns its capture tool)', () => { + it('a plain agent never sees the tool: nothing is registered globally at all', async () => { const { ctx, parent, adapter } = await setup([textResponse('parent answer')]) - const hold = acquireStructuredRuntime(ctx) parent.send([{ type: 'text', text: 'hello' }]) await parent.whenIdle() - // The placeholder IS in the registry during this turn; the assembly the - // loop rendered must not carry it for an agent without a structured run. - expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeDefined() + // Scoped registration: the global view has no capture tool, ever. + expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeUndefined() expect(toolNames(adapter.requests[0]!)).not.toContain(STRUCTURED_OUTPUT_TOOL) - hold.release() }) it('a structured child sees structured_output with ITS schema; a plain agent never sees the tool', async () => { @@ -430,16 +412,21 @@ describe('in-process structured output', () => { await runB.dispose() }) - it('wins against a downstream listener that REPLACES the assembly object', async () => { + it('the re-assert wins against a downstream listener that REPLACES the assembly object', async () => { const { ctx, parent, adapter } = await setup([ toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 5 }), ]) - // A downstream (non-prepend) listener that returns a brand-new assembly — - // the composition caveat that erases cooperative mutations. Registered - // AFTER the runtime's prepend listener, so it runs INSIDE it. + // A global (every-assembly) listener that returns a brand-new assembly + // WITHOUT the capture tool or instruction — the composition caveat that + // erases cooperative mutations. The child's prepend re-assert runs + // OUTERMOST and restores both. ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { const replaced = await next() - return { sections: [...replaced.sections], tools: [...replaced.tools], variables: { ...replaced.variables } } + return { + sections: replaced.sections.filter(section => section.name !== `tool:${STRUCTURED_OUTPUT_TOOL}`), + tools: replaced.tools.filter(tool => tool.name !== STRUCTURED_OUTPUT_TOOL), + variables: { ...replaced.variables }, + } }) const run = ctx.subagents.start('spawn', structuredRequest(parent)) const result = await run.result @@ -447,140 +434,41 @@ describe('in-process structured output', () => { const entry = adapter.requests[0]!.tools!.find(tool => tool.name === STRUCTURED_OUTPUT_TOOL) expect(entry).toBeDefined() expect(entry!.parameters).toEqual(SCHEMA) + const system = adapter.requests[0]!.system ?? '' + expect(system).toContain(STRUCTURED_OUTPUT_INSTRUCTION) await run.dispose() }) it('a non-structured agent request keeps tools ABSENT when it had none (no tools: [] materialized)', async () => { - const { parent, adapter } = await setup([ - // The registry contributes the placeholder via prompt assembly, so - // tools is an array in the raw request — but after stripping the - // placeholder (its ONLY entry), the field must not be re-added as a - // different shape. - textResponse('plain'), - ]) + const { parent, adapter } = await setup([textResponse('plain')]) parent.send([{ type: 'text', text: 'q' }]) await parent.whenIdle() const request = adapter.requests[0]! - expect(toolNames(request)).not.toContain(STRUCTURED_OUTPUT_TOOL) + expect(request.tools).toBeUndefined() await new Promise(resolve => setTimeout(resolve, 0)) }) - it('shapes a bare assembly on the waterfall: no-agent context strips the placeholder; a structured agent gains schema + trailing instruction section', async () => { - // Drive ctx.systemPrompt.assemble directly — the enforcement listener - // must tolerate a context with NO agent (a bare diagnostic assemble) - // and shape a structured agent's assembly on the same path the loop - // renders and logs as the request header. - const { ctx, parent } = await setup([]) - const acquisition = acquireStructuredRuntime(ctx) - // Bare assemble WHILE the runtime is live: the no-agent branch must - // strip the registered placeholder (before the acquisition there is - // nothing to strip — run-scoped registration). - const bare = await ctx.systemPrompt.assemble({}) - expect(bare.tools.map(tool => tool.name)).not.toContain(STRUCTURED_OUTPUT_TOOL) - - acquisition.attach(parent, SCHEMA) - const shaped = await ctx.systemPrompt.assemble({ agent: parent }) - expect(shaped.tools.map(tool => tool.name)).toContain(STRUCTURED_OUTPUT_TOOL) - expect(shaped.tools.find(tool => tool.name === STRUCTURED_OUTPUT_TOOL)!.parameters).toEqual(SCHEMA) - // The demand travels with the tool: the instruction renders LAST - // (appended post-next(); renderPrompt joins in array order). - expect(shaped.sections.at(-1)).toMatchObject({ name: `tool:${STRUCTURED_OUTPUT_TOOL}`, text: STRUCTURED_OUTPUT_INSTRUCTION }) - acquisition.detach(parent) - acquisition.release() - }) - }) - - describe('runtime lifetime (refcount: live structured runs)', () => { - it('the runtime exists exactly while structured runs are live: nothing before, nothing after', async () => { - const { ctx, parent } = await setup([ + it('registrations ride the child fiber: disposing the run removes them; a provider reload mid-run cannot', async () => { + const { ctx, parent, disposeProvider } = await setup([ toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 4 }), ]) - // No always-on global state: a context that has run no structured child - // carries no capture tool. expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeUndefined() const run = ctx.subagents.start('spawn', structuredRequest(parent)) + // A backend hot-reload mid-run must not unregister the capture tool out + // from under the live child: the registration rides the CHILD's fiber. + disposeProvider() const result = await run.result - // The capture succeeded — the registrations existed while the run lived. expect(result.structured).toEqual({ answer: 4 }) - // The run's settle released the last acquisition. - expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeUndefined() + const child = ctx.agents.get(run.id)! + expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL, child)).toBeDefined() await run.dispose() - }) - - it('concurrent structured runs share one runtime; the last settle disposes it', async () => { - const { ctx, parent } = await setup([ - toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 1 }), - toolCallResponse('c2', STRUCTURED_OUTPUT_TOOL, { answer: 2 }), - ]) - const first = ctx.subagents.start('spawn', structuredRequest(parent)) - const second = ctx.subagents.start('spawn', structuredRequest(parent)) - const [a, b] = await Promise.all([first.result, second.result]) - expect([a.structured, b.structured].sort()).toEqual([{ answer: 1 }, { answer: 2 }].sort()) - expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeUndefined() - await first.dispose() - await second.dispose() - }) - - it('acquisition release is idempotent (double release cannot underflow the refcount)', async () => { - const ctx = new Context() - await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) - const first = acquireStructuredRuntime(ctx) - const second = acquireStructuredRuntime(ctx) - first.release() - first.release() - // The second holder still keeps the tool registered. - expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeDefined() - second.release() - expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeUndefined() - }) - - it('registers the capture tool through the scoped fiber when tools loads after the acquisition', async () => { - // The Loader starts sibling plugins concurrently, so a backend can - // acquire the runtime before dsh-tools has applied. The capture tool - // must then register as soon as `tools` exists — via the inject fiber, - // not by deferring the backend (which would reorder the prompt's tools). - const ctx = new Context() - const acquisition = acquireStructuredRuntime(ctx) - await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) - // Fiber activation completes asynchronously after the service appears. - await new Promise(resolve => setImmediate(resolve)) - expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeDefined() - acquisition.release() - expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeUndefined() - }) - - it('releasing before tools ever loads disposes the pending fiber without registering', async () => { - const ctx = new Context() - const acquisition = acquireStructuredRuntime(ctx) - acquisition.release() - await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) - await new Promise(resolve => setImmediate(resolve)) - // The disposed fiber never fires: nothing registers after the fact. - expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeUndefined() - }) - - it('attach/captured/detach manage per-agent state through the acquisition surface', async () => { - const { ctx, parent } = await setup([]) - const acquisition = acquireStructuredRuntime(ctx) - expect(acquisition.captured(parent)).toBeUndefined() - acquisition.attach(parent, SCHEMA) - expect(acquisition.captured(parent)).toBeUndefined() - acquisition.detach(parent) - acquisition.detach(parent) - acquisition.release() - // That manual acquisition was the ONLY holder - release disposes. - expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL)).toBeUndefined() + // Child disposed ⇒ its scoped registrations are gone. + expect(ctx.tools.get(STRUCTURED_OUTPUT_TOOL, child)).toBeUndefined() }) }) - it('a direct structured_output call from an agent WITHOUT a structured run is an isError', async () => { + it('a structured_output call from an agent WITHOUT a structured run is UNKNOWN_TOOL (the tool does not exist for it)', async () => { const { ctx, parent } = await setup([]) - // Hold the runtime open (run-scoped: nothing is registered otherwise) so - // the call reaches the capture tool's own fail-loud guard, not UNKNOWN_TOOL. - const hold = acquireStructuredRuntime(ctx) const result = await ctx.tools.execute({ callId: 'x' as never, name: STRUCTURED_OUTPUT_TOOL, @@ -588,19 +476,17 @@ describe('in-process structured output', () => { agent: parent, }) expect(result.isError).toBe(true) - expect(JSON.stringify(result.content)).toContain('only available to subagents') - hold.release() + expect(result.error?.code).toBe('UNKNOWN_TOOL') }) - it('a structured_output call with NO calling agent at all is an isError', async () => { + it('a structured_output call with NO calling agent at all is UNKNOWN_TOOL', async () => { const { ctx } = await setup([]) - const hold = acquireStructuredRuntime(ctx) const result = await ctx.tools.execute({ callId: 'x' as never, name: STRUCTURED_OUTPUT_TOOL, arguments: { answer: 1 }, }) expect(result.isError).toBe(true) - hold.release() + expect(result.error?.code).toBe('UNKNOWN_TOOL') }) }) diff --git a/packages/subagent/subagent-spawn/src/index.ts b/packages/subagent/subagent-spawn/src/index.ts index 2d8f118b4e..53fa5967fd 100644 --- a/packages/subagent/subagent-spawn/src/index.ts +++ b/packages/subagent/subagent-spawn/src/index.ts @@ -43,13 +43,14 @@ export const Config: z = z.object({ }) /** - * The spawn provider. Supports `depthLimit` (it constructs the child, so it can - * enforce a recursion cap) and `outputSchema` (via the shared in-process - * structured runtime); NOT `toolFilter` in this cut — a request that needs it - * is rejected by the service before `start` runs. + * The spawn provider. Supports every start-time capability: `depthLimit` (it + * constructs the child, so it can enforce a recursion cap), `outputSchema` + * (the scoped structured runtime), and `toolFilter`/`persona` (scoped + * `restrict()` and a scoped shadowing persona section, applied in the child's + * creation window). */ class SpawnProvider implements SubagentProvider { - readonly capabilities: SubagentCapabilities = { outputSchema: true, depthLimit: true, toolFilter: false } + readonly capabilities: SubagentCapabilities = { outputSchema: true, depthLimit: true, toolFilter: true, persona: true } // Context contract: a spawned child starts fresh — it never sees the parent conversation. readonly inheritsParentContext = false diff --git a/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts b/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts index 1dad9748e9..0d3bc57d26 100644 --- a/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts +++ b/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts @@ -241,10 +241,10 @@ describe('dsh-subagent-spawn', () => { await parentHandle.dispose() }) - it('advertises depthLimit and outputSchema but not toolFilter', async () => { + it('advertises every start-time capability (depthLimit, outputSchema, toolFilter, persona)', async () => { const { ctx } = await setup([]) const provider = ctx.subagents.getProvider('spawn')! - expect(provider.capabilities).toEqual({ outputSchema: true, depthLimit: true, toolFilter: false }) + expect(provider.capabilities).toEqual({ outputSchema: true, depthLimit: true, toolFilter: true, persona: true }) }) it('unregisters the provider when its fiber is disposed (HMR safety)', async () => { @@ -316,4 +316,65 @@ describe('dsh-subagent-spawn', () => { expect(unwrapped.inject).toEqual(['subagents', 'agents']) expect(typeof unwrapped.apply).toBe('function') }) + + describe('persona and toolFilter (the scoped child world)', () => { + it('a per-child persona shadows the deployment persona in the child request only', async () => { + const { ctx, parent, adapter } = await setup([ + textResponse('parent answer'), + textResponse('child answer'), + ]) + parent.send([{ type: 'text', text: 'hi' }]) + await parent.whenIdle() + + const run = ctx.subagents.start('spawn', { + prompt: [{ type: 'text', text: 'do X' }], + parent, + persona: 'You are the tersest test runner.', + }) + await run.result + const childRequest = adapter.requests.at(-1)! + expect(childRequest.system).toContain('You are the tersest test runner.') + // The parent's earlier request carried no such persona. + expect(adapter.requests[0]!.system ?? '').not.toContain('tersest test runner') + await run.dispose() + }) + + it('toolFilter hides denied tools from the child prompt AND refuses their execution', async () => { + const { ctx, parent, adapter } = await setup([ + // The child tries the denied tool anyway, then answers. + toolCallResponse('c1', 'forbidden_tool', {}), + textResponse('done'), + ]) + ctx.tools.register({ + name: 'forbidden_tool', description: 'global', parameters: {}, + execute: () => Promise.resolve([{ type: 'text', text: 'ran' }]), + }) + const run = ctx.subagents.start('spawn', { + prompt: [{ type: 'text', text: 'do X' }], + parent, + toolFilter: { deny: ['forbidden_tool'] }, + }) + const result = await run.result + expect(result.stopReason).toBe('completed') + // Not advertised… + const childRequest = adapter.requests[0]! + expect((childRequest.tools ?? []).map(t => t.name)).not.toContain('forbidden_tool') + // …and the attempted call executed as UNKNOWN_TOOL (visible in the log). + const child = ctx.agents.get(run.id)! + const toolResult = child.session.events.find(e => e.type === 'tool/result')! + expect(JSON.stringify(toolResult.data)).toContain('unknown tool') + await run.dispose() + }) + + it('an unknown toolFilter name fails the spawn loudly with no orphaned child', async () => { + const { ctx, parent } = await setup([]) + const before = ctx.agents.list().length + expect(() => ctx.subagents.start('spawn', { + prompt: [{ type: 'text', text: 'do X' }], + parent, + toolFilter: { deny: ['no_such_tool'] }, + })).toThrow(/unknown tool "no_such_tool"/) + expect(ctx.agents.list().length).toBe(before) + }) + }) }) diff --git a/packages/subagent/subagent/src/index.ts b/packages/subagent/subagent/src/index.ts index 91230b7ff4..fc78efa674 100644 --- a/packages/subagent/subagent/src/index.ts +++ b/packages/subagent/subagent/src/index.ts @@ -33,9 +33,10 @@ */ import { Context, Service } from 'cordis' +import { scopeTarget } from '@deepseek-ai/dsh-scope' import { HarnessError } from '@deepseek-ai/dsh-llm' import type { ContentBlock } from '@deepseek-ai/dsh-llm' -import type { AgentId } from '@deepseek-ai/dsh-agent' +import type { Agent, AgentId } from '@deepseek-ai/dsh-agent' import type { SubagentCapabilities, SubagentProvider, @@ -223,7 +224,7 @@ export class SubagentService extends Service { // acceptable. `ctx.emit` halts the dispatch on the first throw, so a single // surrounding try/catch is not enough — each listener is invoked and // contained individually. - this.emitLifecycle('subagent/start', { provider: name, id: run.id }) + this.emitLifecycle('subagent/start', { provider: name, id: run.id }, request.parent) // Emit `subagent/end` when the run settles. The result promise does not // reject on a child-level failure (it resolves with stopReason 'error'), // so a rejection here is an infrastructure fault — surface its stop reason @@ -253,9 +254,9 @@ export class SubagentService extends Service { } catch (error: unknown) { this.ctx.logger.warn(`subagent: could not clone ${name} output for subagent/end: ${String(error)}`) } - this.emitLifecycle('subagent/end', { provider: name, id: run.id, stopReason: result.stopReason, ...lastAssistantMessage !== undefined ? { lastAssistantMessage } : {} }) + this.emitLifecycle('subagent/end', { provider: name, id: run.id, stopReason: result.stopReason, ...lastAssistantMessage !== undefined ? { lastAssistantMessage } : {} }, request.parent) }, - () => { this.emitLifecycle('subagent/end', { provider: name, id: run.id, stopReason: 'error' }) }, + () => { this.emitLifecycle('subagent/end', { provider: name, id: run.id, stopReason: 'error' }, request.parent) }, ) return run } @@ -280,14 +281,22 @@ export class SubagentService extends Service { * listener unwinds the yielded rollback — the same fail-loud register-time * semantics as the system-prompt registries. */ - private emitLifecycle(name: 'subagent/start', info: SubagentRunInfo): void - private emitLifecycle(name: 'subagent/end', info: SubagentRunEndInfo): void + private emitLifecycle(name: 'subagent/start', info: SubagentRunInfo, parent: Agent): void + private emitLifecycle(name: 'subagent/end', info: SubagentRunEndInfo, parent: Agent): void private emitLifecycle(name: 'subagent/provider-removed', info: string): void private emitLifecycle( name: 'subagent/start' | 'subagent/end' | 'subagent/provider-removed', info: SubagentRunInfo | SubagentRunEndInfo | string, + parent?: Agent, ): void { - for (const callback of this.ctx.events.dispatch('emit', [name, info])) { + // Run lifecycle events dispatch in the DELEGATING PARENT's scope (a + // parent-scoped listener observes only its own delegations); the + // provider-removed registry notification stays unfiltered. The carrier is + // args[0] of the dispatch call, exactly as cordis' own emit spells it. + const dispatchArgs: unknown[] = parent === undefined + ? [name, info] + : [scopeTarget(this, parent), name, info] + for (const callback of this.ctx.events.dispatch('emit', dispatchArgs)) { try { callback(info) } catch (error: unknown) { @@ -306,6 +315,7 @@ export class SubagentService extends Service { { when: request.outputSchema !== undefined, cap: 'outputSchema' }, { when: request.maxDepth !== undefined, cap: 'depthLimit' }, { when: request.toolFilter !== undefined, cap: 'toolFilter' }, + { when: request.persona !== undefined, cap: 'persona' }, ] for (const { when, cap } of needs) { if (when && !provider.capabilities[cap]) { diff --git a/packages/subagent/subagent/src/types.ts b/packages/subagent/subagent/src/types.ts index fb512c0bdb..5e6553c48a 100644 --- a/packages/subagent/subagent/src/types.ts +++ b/packages/subagent/subagent/src/types.ts @@ -29,6 +29,8 @@ export interface SubagentCapabilities { depthLimit: boolean /** Enforce {@link SubagentStartRequest.toolFilter} (child tool scoping). */ toolFilter: boolean + /** Honor {@link SubagentStartRequest.persona} (a per-child persona). */ + persona: boolean } /** @@ -73,9 +75,20 @@ export interface SubagentStartRequest { maxDepth?: number /** * Optional child tool scoping. Requires {@link SubagentCapabilities.toolFilter}; - * rejected at start otherwise. + * rejected at start otherwise. In-process backends apply it as a scoped + * `tools.restrict()` in the child's creation window: the named tools vanish + * from the child's prompt AND refuse to execute (one visibility), with loud + * unknown-name validation. */ toolFilter?: { allow?: string[]; deny?: string[] } + /** + * Optional per-child persona. Requires {@link SubagentCapabilities.persona}; + * rejected at start otherwise. In-process backends register it as a scoped + * `deployment:persona` section on the child, SHADOWING the deployment's + * persona for this child alone — same template semantics as the deployment + * persona (strict `{{…}}` interpolation against the registered variables). + */ + persona?: string } /** diff --git a/packages/subagent/subagent/tests/service.spec.ts b/packages/subagent/subagent/tests/service.spec.ts index f70abf7e72..66c3e80042 100644 --- a/packages/subagent/subagent/tests/service.spec.ts +++ b/packages/subagent/subagent/tests/service.spec.ts @@ -16,8 +16,8 @@ function fakeParent(id = 'parent-1'): Agent { return { id: AgentId(id) } as unknown as Agent } -const ALL_CAPS: SubagentCapabilities = { outputSchema: true, depthLimit: true, toolFilter: true } -const NO_CAPS: SubagentCapabilities = { outputSchema: false, depthLimit: false, toolFilter: false } +const ALL_CAPS: SubagentCapabilities = { outputSchema: true, depthLimit: true, toolFilter: true, persona: false } +const NO_CAPS: SubagentCapabilities = { outputSchema: false, depthLimit: false, toolFilter: false, persona: false } /** A scripted provider whose run settles immediately with a fixed result. */ class StubProvider implements SubagentProvider { diff --git a/packages/subagent/tool-subagent/src/index.ts b/packages/subagent/tool-subagent/src/index.ts index f48ef4345e..c305ea40db 100644 --- a/packages/subagent/tool-subagent/src/index.ts +++ b/packages/subagent/tool-subagent/src/index.ts @@ -54,11 +54,35 @@ export interface Config { toolName?: string /** * Default per-child agent options (model) applied to every spawned child. - * Omitted fields fall back to the child loop's own defaults. There is no - * per-child persona: the deployment persona (the system-prompt plugin's - * `persona` config) is a context-wide section every agent shares. + * Omitted fields fall back to the child loop's own defaults. */ agentOptions?: AgentOptions + /** + * Per-child persona applied to every child this tool spawns: a scoped + * `deployment:persona` section shadowing the deployment's persona for the + * child alone. Requires the bound provider's `persona` capability + * (in-process backends support it; a request against one that doesn't is + * rejected at start). Omitted ⇒ the child renders the deployment persona. + */ + persona?: string + /** + * Tool scoping applied to every child this tool spawns (see + * `SubagentStartRequest.toolFilter`): the named global tools vanish from + * the child's prompt AND refuse to execute. Requires the provider's + * `toolFilter` capability. Unknown names fail the spawn loudly. Note the + * child otherwise sees every global tool — including this delegation tool + * itself; `deny`-listing it (or setting `maxDepth`) is how a deployment + * bounds recursion. + */ + toolFilter?: { allow?: string[]; deny?: string[] } + /** + * Recursion cap applied to every child this tool spawns (see + * `SubagentStartRequest.maxDepth`): a spawn whose child would sit deeper + * than this in the delegation tree is rejected. Requires the provider's + * `depthLimit` capability. Omitted ⇒ unbounded (bound it in deployments + * that expose this tool to children). + */ + maxDepth?: number } export const Config: z = z.object({ @@ -67,6 +91,17 @@ export const Config: z = z.object({ agentOptions: z.object({ model: z.string(), }), + persona: z.string(), + // A schemastery object materializes {} (with [] for nested arrays) when the + // key is omitted — for toolFilter that would mean an EMPTY ALLOW-LIST, i.e. + // deny-everything, silently. Force the omitted key to stay absent (the same + // shape discipline as SystemPrompt's toolOrder); the cast is needed because + // .default() expects the object type. + toolFilter: z.object({ + allow: z.array(z.string()), + deny: z.array(z.string()), + }).default(undefined as unknown as { allow: string[]; deny: string[] }), + maxDepth: z.number(), }) /** @@ -179,6 +214,9 @@ export function apply(ctx: Context, config: Config): void { parent, ...exec.signal ? { signal: exec.signal } : {}, ...config.agentOptions ? { agentOptions: config.agentOptions } : {}, + ...config.persona !== undefined ? { persona: config.persona } : {}, + ...config.toolFilter !== undefined ? { toolFilter: config.toolFilter } : {}, + ...config.maxDepth !== undefined ? { maxDepth: config.maxDepth } : {}, } const run: SubagentRun = ctx.subagents.start(config.provider, request) diff --git a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts index 611069ef76..90f3e0f931 100644 --- a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts +++ b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts @@ -111,7 +111,7 @@ describe('dsh-tool-subagent', () => { await ctx.plugin(SubagentService) ctx.subagents.registerProvider({ name: 'weird', - capabilities: { outputSchema: false, depthLimit: false, toolFilter: false }, + capabilities: { outputSchema: false, depthLimit: false, toolFilter: false, persona: false }, inheritsParentContext: false, start: () => ({ id: AgentId('weird-child'), @@ -137,7 +137,7 @@ describe('dsh-tool-subagent', () => { await ctx.plugin(SubagentService) ctx.subagents.registerProvider({ name: 'capture', - capabilities: { outputSchema: false, depthLimit: false, toolFilter: false }, + capabilities: { outputSchema: false, depthLimit: false, toolFilter: false, persona: false }, inheritsParentContext: false, start: (request) => { seen = request @@ -167,7 +167,7 @@ describe('dsh-tool-subagent', () => { await ctx.plugin(SubagentService) ctx.subagents.registerProvider({ name: 'bare', - capabilities: { outputSchema: false, depthLimit: false, toolFilter: false }, + capabilities: { outputSchema: false, depthLimit: false, toolFilter: false, persona: false }, inheritsParentContext: false, start: (request) => { seen = request @@ -297,7 +297,7 @@ describe('dsh-tool-subagent', () => { await ctx.plugin(SubagentService) ctx.subagents.registerProvider({ name: 'spy', - capabilities: { outputSchema: false, depthLimit: false, toolFilter: false }, + capabilities: { outputSchema: false, depthLimit: false, toolFilter: false, persona: false }, inheritsParentContext: false, start: () => ({ id: AgentId('spy-child'), @@ -320,7 +320,7 @@ describe('dsh-tool-subagent', () => { await ctx.plugin(SubagentService) ctx.subagents.registerProvider({ name: 'spy', - capabilities: { outputSchema: false, depthLimit: false, toolFilter: false }, + capabilities: { outputSchema: false, depthLimit: false, toolFilter: false, persona: false }, inheritsParentContext: false, start: () => ({ id: AgentId('spy-child'), @@ -344,7 +344,7 @@ describe('dsh-tool-subagent', () => { await ctx.plugin(SubagentService) ctx.subagents.registerProvider({ name: 'spy', - capabilities: { outputSchema: false, depthLimit: false, toolFilter: false }, + capabilities: { outputSchema: false, depthLimit: false, toolFilter: false, persona: false }, inheritsParentContext: false, start: () => { let resolveResult: (r: { output: never[]; stopReason: 'aborted' }) => void @@ -391,7 +391,7 @@ describe('dsh-tool-subagent', () => { await ctx.plugin(SubagentService) ctx.subagents.registerProvider({ name: 'spy', - capabilities: { outputSchema: false, depthLimit: false, toolFilter: false }, + capabilities: { outputSchema: false, depthLimit: false, toolFilter: false, persona: false }, inheritsParentContext: false, start: () => { let resolveResult: (r: { output: never[]; stopReason: 'aborted' }) => void diff --git a/packages/support/subagent-mock/src/index.ts b/packages/support/subagent-mock/src/index.ts index e2effe5b4b..e72765ba4d 100644 --- a/packages/support/subagent-mock/src/index.ts +++ b/packages/support/subagent-mock/src/index.ts @@ -26,7 +26,7 @@ import type { const STOP_REASONS = ['completed', 'aborted', 'error', 'max-tokens', 'refusal'] as const -const DEFAULT_CAPS: SubagentCapabilities = { outputSchema: true, depthLimit: true, toolFilter: true } +const DEFAULT_CAPS: SubagentCapabilities = { outputSchema: true, depthLimit: true, toolFilter: true, persona: true } /** * A scripted provider: every {@link start} returns a run whose `result` @@ -111,6 +111,7 @@ export const Config: z = z.object({ outputSchema: z.boolean(), depthLimit: z.boolean(), toolFilter: z.boolean(), + persona: z.boolean(), }), inheritsParentContext: z.boolean(), structured: z.any(), From 1ac785734995d25c36ed21dcfe671354c3fc0be4 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 02:11:21 +0800 Subject: [PATCH 090/232] feat(invariants): scoped-dispatch carrier/subject checks and the setup-drives tripwire MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Three dev-mode invariants close the leak-by-default regression class at runtime: (1) every scope-filtered event family must dispatch with a scope carrier — a bare dispatch throws at the call site naming the carrier rule; (2) where the subject is recoverable from the arguments (agent/*, the tool pipeline, prompt assembly) the carrier's key must BE that subject, and an assembly context must never carry agent without scope (use assembleContextFor); (3) a turn/start logged before the owning agent's agent/session-start is the setup-drives teaching error (setup registers the scoped world, it never drives the agent). --- packages/support/invariants/package.json | 6 ++ packages/support/invariants/src/index.ts | 90 ++++++++++++++++ .../invariants/tests/invariants.spec.ts | 100 ++++++++++++++---- packages/support/invariants/tsconfig.json | 9 ++ pnpm-lock.yaml | 9 ++ 5 files changed, 196 insertions(+), 18 deletions(-) diff --git a/packages/support/invariants/package.json b/packages/support/invariants/package.json index 97d6160b03..4ea36f66de 100644 --- a/packages/support/invariants/package.json +++ b/packages/support/invariants/package.json @@ -24,13 +24,19 @@ "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-scope": "^0.0.1", "@deepseek-ai/dsh-session": "^0.0.1", + "@deepseek-ai/dsh-system-prompt": "^0.0.1", + "@deepseek-ai/dsh-tools": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-scope": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", + "@deepseek-ai/dsh-system-prompt": "workspace:^", + "@deepseek-ai/dsh-tools": "workspace:^", "cordis": "^4.0.0-rc.6" } } diff --git a/packages/support/invariants/src/index.ts b/packages/support/invariants/src/index.ts index f35fbafa1d..d4b772b317 100644 --- a/packages/support/invariants/src/index.ts +++ b/packages/support/invariants/src/index.ts @@ -20,6 +20,9 @@ */ import type { Context } from 'cordis' +import { carrierKeyOf, isScopeCarrier } from '@deepseek-ai/dsh-scope' +import type { AssembleContext } from '@deepseek-ai/dsh-system-prompt' +import type { ToolExecution } from '@deepseek-ai/dsh-tools' import { HarnessError } from '@deepseek-ai/dsh-llm' import type { CallId, GenerateOptions } from '@deepseek-ai/dsh-llm' import type { Agent, AgentStatus } from '@deepseek-ai/dsh-agent' @@ -362,6 +365,93 @@ export function apply(ctx: Context, config: Config = {}): void { lastStatus.set(agent, status) }) + // --- Scoped-dispatch invariants (the agent-scoping seam) --------------- + // + // Every scope-filtered event family must dispatch with a scope carrier + // (scopeTarget) whose key IS the subject the event's arguments name — + // a dispatch without one silently reverts that event to global delivery + // (agent-scoped listeners over-hear foreign agents), and a mis-keyed one + // delivers to the wrong agent's listeners. `internal/dispatch` fires + // synchronously before listener delivery, so a violation throws at the + // dispatching call site. The table maps each family to how its subject is + // read from the event arguments; `null` = the subject is not recoverable + // from the arguments (session events key by the OWNING agent; subagent + // lifecycle events key by the delegating parent), so only carrier + // PRESENCE is asserted there. + const scopedSubject: Record unknown) | null> = { + 'agent/created': args => args[0], + 'agent/disposed': args => args[0], + 'agent/status': args => args[0], + 'agent/queued': args => args[0], + 'agent/session-start': args => args[0], + 'agent/pre-step': args => args[0], + 'agent/prompt-submit': args => args[0], + 'agent/request': args => args[0], + 'agent/step-result': args => args[0], + 'agent/turn-continuation': args => args[0], + 'agent/error': args => args[0], + 'tools/pre-execute': args => (args[0] as ToolExecution).agent, + 'tools/post-execute': args => (args[0] as ToolExecution).agent, + 'system-prompt/assemble': args => (args[1] as AssembleContext).scope, + 'session/created': null, + 'session/event': null, + 'session/flush': null, + 'subagent/start': null, + 'subagent/end': null, + } + ctx.on('internal/dispatch', (_mode, name, args, thisArg) => { + const subjectOf = scopedSubject[name] + if (subjectOf === undefined) return + if (!isScopeCarrier(thisArg)) { + throw new InvariantError( + `"${name}" is a scope-filtered event but was dispatched without a scope carrier — ` + + 'pass scopeTarget(base, subject) as the dispatch thisArg (agent events: use agentEvents(ctx, agent))') + } + if (subjectOf !== null && carrierKeyOf(thisArg) !== subjectOf(args)) { + throw new InvariantError( + `"${name}" was dispatched with a scope carrier keyed to a DIFFERENT subject than its arguments name — ` + + 'the carrier key and the event\'s subject must be the same object (use agentEvents(ctx, agent))') + } + // The assembly context must never carry the agent DX field without the + // scope layer selector: the assembly would silently miss the agent's + // scoped sections/tools (use assembleContextFor(agent)). + if (name === 'system-prompt/assemble') { + const context = args[1] as AssembleContext + if (context.agent !== undefined && context.scope !== context.agent) { + throw new InvariantError( + 'an assembly context carries `agent` without `scope` (or with a mismatched scope) — ' + + 'use assembleContextFor(agent) so the assembly resolves the agent\'s scoped layer') + } + } + }, { global: true }) + + // --- Setup-drives invariant --------------------------------------------- + // + // CreateAgentOptions.setup REGISTERS the agent's scoped world; it must not + // DRIVE the agent — an inject() there opens a turn before + // `agent/session-start`, inverting the "session-start fires before the + // first turn" contract every bridge keys on. A turn/start appended to a + // live agent's session before its agent/session-start fired is therefore a + // creation-time misuse, reported at the appending call site. Sessions of + // agents that exist BEFORE this plugin applies are marked started (their + // ordering is unknowable after the fact — never a false positive on HMR). + // `agents` is read via ctx.get (a strict, optional store lookup) rather + // than injected: the invariants plugin must load in harnesses that carry + // no agent registry at all (bare session tests), where this check simply + // never trips. + const sessionStarted = new WeakSet() + for (const agent of ctx.get('agents')?.list() ?? []) sessionStarted.add(agent.session) + ctx.on('agent/session-start', (agent) => { sessionStarted.add(agent.session) }) + ctx.on('session/event', (session, event) => { + if (event.type !== 'turn/start' || sessionStarted.has(session)) return + const owner = ctx.get('agents')?.list().find(agent => agent.session === session) + if (owner === undefined) return + throw new InvariantError( + `agent "${owner.id}": a turn opened before agent/session-start fired — ` + + 'CreateAgentOptions.setup registers the scoped world, it must not drive the agent ' + + '(send/steer/inject belong after creation returns)') + }) + // Request-reconstruction cross-check (the reconstructability RFC): a // loop-built request — frozen envelope + live sessionId is the marker; a // hand-built one-shot (compaction summarize) is unfrozen and skipped — must diff --git a/packages/support/invariants/tests/invariants.spec.ts b/packages/support/invariants/tests/invariants.spec.ts index 489cfb9817..98e5d675fa 100644 --- a/packages/support/invariants/tests/invariants.spec.ts +++ b/packages/support/invariants/tests/invariants.spec.ts @@ -1,5 +1,6 @@ import { describe, expect, it, vi } from 'vitest' import { Context } from 'cordis' +import { scopeTarget } from '@deepseek-ai/dsh-scope' import { CallId } from '@deepseek-ai/dsh-llm' import type { Agent } from '@deepseek-ai/dsh-agent' import SessionStore, { SessionId } from '@deepseek-ai/dsh-session' @@ -41,8 +42,8 @@ describe('session-log invariants', () => { const session = ctx.sessions.create() // Session.append enforces seq-contiguity at the source, so drive the // invariants seq check directly via session/event with a regressing seq. - ctx.emit('session/event', session, { type: 'turn/start', seq: 0, time: 1, data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } } } as never) - expect(() => { ctx.emit('session/event', session, { type: 'turn/end', seq: 0, time: 2, data: { turn: 1, reason: { kind: 'completed' } } } as never) }) + ctx.emit(scopeTarget(session, undefined), 'session/event', session, { type: 'turn/start', seq: 0, time: 1, data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } } } as never) + expect(() => { ctx.emit(scopeTarget(session, undefined), 'session/event', session, { type: 'turn/end', seq: 0, time: 2, data: { turn: 1, reason: { kind: 'completed' } } } as never) }) .toThrow(/seq must strictly increase/) }) @@ -340,11 +341,11 @@ describe('dev-freeze', () => { // handler directly via hand-built session/events — exactly the shape the // invariants listener receives. Open a turn first (seq 0) so the cyclic // user/message (seq 1) satisfies the turn-enclosure invariant. - ctx.emit('session/event', session, { type: 'turn/start', seq: 0, time: 1, data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } } } as never) + ctx.emit(scopeTarget(session, undefined), 'session/event', session, { type: 'turn/start', seq: 0, time: 1, data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } } } as never) const cyclic: Record = { type: 'text', text: 'x' } cyclic['self'] = cyclic const event = { type: 'user/message', seq: 1, time: 1, data: { content: [cyclic], source: { kind: 'user' } } } - expect(() => { ctx.emit('session/event', session, event as never) }).not.toThrow() + expect(() => { ctx.emit(scopeTarget(session, undefined), 'session/event', session, event as never) }).not.toThrow() expect(Object.isFrozen(cyclic)).toBe(true) }) }) @@ -354,41 +355,41 @@ describe('agent status invariants', () => { const { ctx } = await setup({ freeze: false }) const agent = mockAgent('a1') expect(() => { - ctx.emit('agent/status', agent, 'idle') - ctx.emit('agent/status', agent, 'running') - ctx.emit('agent/status', agent, 'idle') - ctx.emit('agent/status', agent, 'disposed') + ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'idle') + ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'running') + ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'idle') + ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'disposed') }).not.toThrow() }) it('accepts running→disposed', async () => { const { ctx } = await setup({ freeze: false }) const agent = mockAgent('a2') - ctx.emit('agent/status', agent, 'running') - expect(() => { ctx.emit('agent/status', agent, 'disposed') }).not.toThrow() + ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'running') + expect(() => { ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'disposed') }).not.toThrow() }) it('rejects a no-op transition', async () => { const { ctx } = await setup({ freeze: false }) const agent = mockAgent('a3') - ctx.emit('agent/status', agent, 'running') - expect(() => { ctx.emit('agent/status', agent, 'running') }).toThrow(/no-op transition/) + ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'running') + expect(() => { ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'running') }).toThrow(/no-op transition/) }) it('rejects leaving the terminal disposed state', async () => { const { ctx } = await setup({ freeze: false }) const agent = mockAgent('a4') - ctx.emit('agent/status', agent, 'disposed') - expect(() => { ctx.emit('agent/status', agent, 'idle') }).toThrow(/left terminal state disposed/) + ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'disposed') + expect(() => { ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'idle') }).toThrow(/left terminal state disposed/) }) it('tracks status per agent independently', async () => { const { ctx } = await setup({ freeze: false }) const a = mockAgent('a5') const b = mockAgent('b5') - ctx.emit('agent/status', a, 'running') + ctx.emit(scopeTarget(a, a), 'agent/status', a, 'running') // b's first observation is independent of a. - expect(() => { ctx.emit('agent/status', b, 'running') }).not.toThrow() + expect(() => { ctx.emit(scopeTarget(b, b), 'agent/status', b, 'running') }).not.toThrow() }) }) @@ -406,8 +407,8 @@ describe('HMR safety', () => { expect(Object.isFrozen(event)).toBe(false) // A no-op status transition no longer throws either. const agent = mockAgent('hmr') - ctx.emit('agent/status', agent, 'idle') - expect(() => { ctx.emit('agent/status', agent, 'idle') }).not.toThrow() + ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'idle') + expect(() => { ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'idle') }).not.toThrow() }) it('InvariantError carries a stable code', () => { @@ -780,3 +781,66 @@ describe('request cross-check ordering (prepend)', () => { }).toThrow(/diverges from the boundary derivation/) }) }) + +describe('scoped-dispatch invariants', () => { + async function scopedCtx() { + const ctx = new Context() + await ctx.plugin(SessionStore) + await ctx.plugin(Invariants) + return ctx + } + + it('rejects a scoped-family dispatch without a carrier (teaching error)', async () => { + const ctx = await scopedCtx() + const agent = { id: 'a1' } as unknown as Agent + expect(() => { ctx.emit('agent/error', agent, 1, 0, new Error('x')) }) + .toThrow(/dispatched without a scope carrier/) + }) + + it('rejects a carrier keyed to a different subject than the arguments name', async () => { + const ctx = await scopedCtx() + const agent = { id: 'a1' } as unknown as Agent + const other = { id: 'a2' } as unknown as Agent + expect(() => { ctx.emit(scopeTarget(agent, other), 'agent/error', agent, 1, 0, new Error('x')) }) + .toThrow(/keyed to a DIFFERENT subject/) + // The correct spelling passes. + expect(() => { ctx.emit(scopeTarget(agent, agent), 'agent/error', agent, 1, 0, new Error('x')) }) + .not.toThrow() + }) + + it('rejects an assembly context carrying agent without scope', async () => { + const ctx = await scopedCtx() + const agent = { id: 'a1' } as unknown as Agent + const base = { name: 'systemPrompt' } + const assembly = { sections: [], tools: [], variables: {} } + const bad = { agent } + expect(() => { + // The carrier base stands in for the SystemPrompt service (the declared `this`); the invariant only reads the carrier marks. + void ctx.waterfall(scopeTarget(base, undefined) as never, 'system-prompt/assemble', assembly as never, bad as never, () => Promise.resolve(assembly as never)) + }).toThrow(/agent.*without.*scope|assembleContextFor/) + const good = { agent, scope: agent } + expect(() => { + void ctx.waterfall(scopeTarget(base, agent) as never, 'system-prompt/assemble', assembly as never, good as never, () => Promise.resolve(assembly as never)) + }).not.toThrow() + }) + + it('rejects a turn opened before agent/session-start (setup drives the agent)', async () => { + const ctx = await scopedCtx() + // A live agent whose session is in the store but whose session-start has + // not fired: appending turn/start must throw the teaching error. + const session = ctx.sessions.create(SessionId('drive-s')) + const agent = { id: 'driver', session } as unknown as Agent + // Provide a minimal agents lookup: the invariant reads ctx.get('agents'). + const registryStub = { list: () => [agent] } + ctx.root.provide('agents', registryStub as never) + expect(() => { + session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) + }).toThrow(/turn opened before agent\/session-start/) + // After session-start fires, turns open freely. + ctx.emit(scopeTarget(agent, agent), 'agent/session-start', agent, 'startup') + expect(() => { + session.append('turn/end', { turn: 1, reason: { kind: 'completed' } }) + session.append('turn/start', { turn: 2, trigger: { kind: 'message', source: { kind: 'user' } } }) + }).not.toThrow() + }) +}) diff --git a/packages/support/invariants/tsconfig.json b/packages/support/invariants/tsconfig.json index 8dca14c786..88944f779e 100644 --- a/packages/support/invariants/tsconfig.json +++ b/packages/support/invariants/tsconfig.json @@ -22,6 +22,15 @@ }, { "path": "../../core/agent" + }, + { + "path": "../../core/scope" + }, + { + "path": "../../core/system-prompt" + }, + { + "path": "../../core/tools" } ] } diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 9238bbea1e..3ffc2719d9 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -799,9 +799,18 @@ importers: '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm + '@deepseek-ai/dsh-scope': + specifier: workspace:^ + version: link:../../core/scope '@deepseek-ai/dsh-session': specifier: workspace:^ version: link:../../core/session + '@deepseek-ai/dsh-system-prompt': + specifier: workspace:^ + version: link:../../core/system-prompt + '@deepseek-ai/dsh-tools': + specifier: workspace:^ + version: link:../../core/tools cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) From f91eb39538d33ebfdae933d6230aa6702365d539 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 02:18:39 +0800 Subject: [PATCH 091/232] docs: regenerate catalogs and sync subagent type-equiv blocks for persona/toolFilter --- docs/config-catalog.md | 37 +++++++++++++++++--- docs/cordis-catalog/events.md | 8 ++--- docs/cordis-catalog/services.md | 2 +- docs/core-data-structures/subagent.md | 4 ++- docs/event-producer-consumer.md | 16 ++++++--- docs/module-graph.md | 11 +++--- packages/subagent/tool-subagent/src/index.ts | 7 +++- 7 files changed, 65 insertions(+), 20 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index afa88564c4..7aed35bd4d 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -271,7 +271,7 @@ export interface Config { } ``` -Source: [`packages/support/invariants/src/index.ts:45`](../packages/support/invariants/src/index.ts) +Source: [`packages/support/invariants/src/index.ts:48`](../packages/support/invariants/src/index.ts) ## `@deepseek-ai/dsh-llm-deepseek` @@ -644,11 +644,40 @@ export interface Config { toolName?: string /** * Default per-child agent options (model) applied to every spawned child. - * Omitted fields fall back to the child loop's own defaults. There is no - * per-child persona: the deployment persona (the system-prompt plugin's - * `persona` config) is a context-wide section every agent shares. + * Omitted fields fall back to the child loop's own defaults. */ agentOptions?: AgentOptions + /** + * Per-child persona applied to every child this tool spawns: a scoped + * `deployment:persona` section shadowing the deployment's persona for the + * child alone. Requires the bound provider's `persona` capability + * (in-process backends support it; a request against one that doesn't is + * rejected at start). Omitted ⇒ the child renders the deployment persona. + */ + persona?: string + /** + * Tool scoping applied to every child this tool spawns (see + * `SubagentStartRequest.toolFilter`): the named global tools vanish from + * the child's prompt AND refuse to execute. Requires the provider's + * `toolFilter` capability. Unknown names fail the spawn loudly. Note the + * child otherwise sees every global tool — including this delegation tool + * itself; `deny`-listing it (or setting `maxDepth`) is how a deployment + * bounds recursion. + */ + toolFilter?: { + /** Global tool names the child keeps; everything else is removed. */ + allow?: string[] + /** Global tool names removed from the child. */ + deny?: string[] + } + /** + * Recursion cap applied to every child this tool spawns (see + * `SubagentStartRequest.maxDepth`): a spawn whose child would sit deeper + * than this in the delegation tree is rejected. Requires the provider's + * `depthLimit` capability. Omitted ⇒ unbounded (bound it in deployments + * that expose this tool to children). + */ + maxDepth?: number } ``` diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index ec418b0576..c748f30690 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -243,7 +243,7 @@ A subagent run settled — emitted when SubagentRun.result resolves (any stop re 'subagent/end'(info: SubagentRunEndInfo): void ``` -Source: [`packages/subagent/subagent/src/index.ts:98`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:99`](../../packages/subagent/subagent/src/index.ts) ### `subagent/provider-added` — emit @@ -253,7 +253,7 @@ A provider became resolvable in the SubagentService registry. Consumers that der 'subagent/provider-added'(provider: SubagentProvider): void ``` -Source: [`packages/subagent/subagent/src/index.ts:72`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:73`](../../packages/subagent/subagent/src/index.ts) ### `subagent/provider-removed` — emit @@ -263,7 +263,7 @@ A provider left the registry (its plugin's fiber was disposed — an unload or a 'subagent/provider-removed'(name: string): void ``` -Source: [`packages/subagent/subagent/src/index.ts:83`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:84`](../../packages/subagent/subagent/src/index.ts) ### `subagent/start` — emit @@ -273,7 +273,7 @@ A subagent run started — emitted after the provider is resolved and its capabi 'subagent/start'(info: SubagentRunInfo): void ``` -Source: [`packages/subagent/subagent/src/index.ts:91`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:92`](../../packages/subagent/subagent/src/index.ts) ## `system-prompt/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 47c080d9a7..8ebc65c5b3 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -197,7 +197,7 @@ list(): string[] start(name: string, request: SubagentStartRequest): SubagentRun ``` -Source: [`packages/subagent/subagent/src/index.ts:144`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:145`](../../packages/subagent/subagent/src/index.ts) ## `ctx.systemPrompt` — `SystemPrompt` diff --git a/docs/core-data-structures/subagent.md b/docs/core-data-structures/subagent.md index f21ef15669..6f2e23e37e 100644 --- a/docs/core-data-structures/subagent.md +++ b/docs/core-data-structures/subagent.md @@ -15,12 +15,13 @@ interface SubagentCapabilities { outputSchema: boolean depthLimit: boolean toolFilter: boolean + persona: boolean } ``` ## The start request -What a caller asks for when starting a subagent. The tool layer builds this from the model's `{ description, prompt }` plus its own config; the service validates the start-time capabilities against the named provider, then passes it to `provider.start`. `parent` is REQUIRED — in-process backends read `parent.session.header` for the working directory, the `parentSession` lineage, and the delegation depth. The three optional fields (`outputSchema`, `maxDepth`, `toolFilter`) each gate on the matching `SubagentCapabilities` flag. `outputSchema` is an object-rooted JSON Schema within the subset `assertSupportedOutputSchema` (dsh-tools) enforces — a schema outside it is rejected loud at start; the in-process backends realize it with a forced `structured_output` capture tool (see the [driver README](../../packages/subagent/subagent-inprocess/README.md)). +What a caller asks for when starting a subagent. The tool layer builds this from the model's `{ description, prompt }` plus its own config; the service validates the start-time capabilities against the named provider, then passes it to `provider.start`. `parent` is REQUIRED — in-process backends read `parent.session.header` for the working directory, the `parentSession` lineage, and the delegation depth. The four optional fields (`outputSchema`, `maxDepth`, `toolFilter`, `persona`) each gate on the matching `SubagentCapabilities` flag — in-process backends realize `toolFilter` as a scoped `tools.restrict()` and `persona` as a scoped shadowing `deployment:persona` section, both composed in the child's creation window. `outputSchema` is an object-rooted JSON Schema within the subset `assertSupportedOutputSchema` (dsh-tools) enforces — a schema outside it is rejected loud at start; the in-process backends realize it with a forced `structured_output` capture tool (see the [driver README](../../packages/subagent/subagent-inprocess/README.md)). ```ts type-equiv interface SubagentStartRequest { @@ -31,6 +32,7 @@ interface SubagentStartRequest { outputSchema?: StructuredOutputSchema maxDepth?: number toolFilter?: { allow?: string[]; deny?: string[] } + persona?: string } ``` diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 3306a22cef..dc33defc00 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -14,7 +14,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:414`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:326`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | | `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:442`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:346`](../packages/core/agent/src/types.ts) | - | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:346`](../packages/core/agent/src/types.ts) | - | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`invariants`](../packages/support/invariants) | | `agent/status` | `emit` | [`packages/core/agent/src/types.ts:312`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:457`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | | `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:475`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | @@ -25,14 +25,20 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `session/created` | `emit` | [`packages/core/session/src/index.ts:47`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence) | | `session/event` | `emit` | [`packages/core/session/src/index.ts:61`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence), [`stdio-agent`](../packages/ui/stdio-agent) | | `session/flush` | `parallel` | [`packages/core/session/src/index.ts:79`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | -| `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:98`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | -| `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:72`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | -| `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:83`](../packages/subagent/subagent/src/index.ts) | - | [`tool-subagent`](../packages/subagent/tool-subagent) | -| `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:91`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | +| `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:99`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | +| `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:73`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | +| `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:84`](../packages/subagent/subagent/src/index.ts) | - | [`tool-subagent`](../packages/subagent/tool-subagent) | +| `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:92`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:44`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | | `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:54`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | | `tools/change` | `emit` | [`packages/core/tools/src/index.ts:112`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | | `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:102`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:82`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +## Non-harness or undeclared event strings seen in package source + +| Event string | Dispatchers | Listeners | +| --- | --- | --- | +| `internal/dispatch` | - | [`invariants`](../packages/support/invariants) | + Maintenance mode: hybrid generated: Cordis event declarations and most producer/listener edges are AST-scanned; dynamic dispatch sites are classified in `scripts/gen-doc-graphs.ts`. diff --git a/docs/module-graph.md b/docs/module-graph.md index d17352fa27..a1a45e5b54 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -126,9 +126,6 @@ flowchart TD pkg_session_persistence_jsonl --> pkg_session_persistence pkg_session_persistence_sqlite --> pkg_session pkg_session_persistence_sqlite --> pkg_session_persistence - pkg_invariants --> pkg_agent - pkg_invariants --> pkg_llm - pkg_invariants --> pkg_session pkg_agent_loop --> pkg_agent pkg_agent_loop --> pkg_llm pkg_agent_loop --> pkg_scope @@ -161,6 +158,12 @@ flowchart TD pkg_hooks_codex --> pkg_llm pkg_hooks_codex --> pkg_session pkg_hooks_codex --> pkg_tools + pkg_invariants --> pkg_agent + pkg_invariants --> pkg_llm + pkg_invariants --> pkg_scope + pkg_invariants --> pkg_session + pkg_invariants --> pkg_system_prompt + pkg_invariants --> pkg_tools pkg_acp --> pkg_agent pkg_acp --> pkg_llm pkg_acp --> pkg_session @@ -245,7 +248,6 @@ flowchart TD | [`compact-basic`](../packages/compact/compact-basic) | `compact` | [`agent`](../packages/core/agent), [`compact`](../packages/compact/compact), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | -| [`invariants`](../packages/support/invariants) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`agent-loop`](../packages/core/agent-loop) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-fs`](../packages/fs/tool-fs) | `fs` | [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | @@ -253,6 +255,7 @@ flowchart TD | [`tool-web`](../packages/web/tool-web) | `web` | [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`web`](../packages/web/web) | | [`tool-todo`](../packages/todo/tool-todo) | `todo` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`hooks-codex`](../packages/hooks/hooks-codex) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | +| [`invariants`](../packages/support/invariants) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools) | | [`agent-core`](../packages/core/agent-core) | `core` | [`agent`](../packages/core/agent), [`agent-loop`](../packages/core/agent-loop), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tool-bash`](../packages/bash/tool-bash), [`tools`](../packages/core/tools) | | [`subagent-acp`](../packages/subagent/subagent-acp) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent) | diff --git a/packages/subagent/tool-subagent/src/index.ts b/packages/subagent/tool-subagent/src/index.ts index c305ea40db..7cf6f0ddbb 100644 --- a/packages/subagent/tool-subagent/src/index.ts +++ b/packages/subagent/tool-subagent/src/index.ts @@ -74,7 +74,12 @@ export interface Config { * itself; `deny`-listing it (or setting `maxDepth`) is how a deployment * bounds recursion. */ - toolFilter?: { allow?: string[]; deny?: string[] } + toolFilter?: { + /** Global tool names the child keeps; everything else is removed. */ + allow?: string[] + /** Global tool names removed from the child. */ + deny?: string[] + } /** * Recursion cap applied to every child this tool spawns (see * `SubagentStartRequest.maxDepth`): a spawn whose child would sit deeper From e7bcbb8bc6fd1ec09243c97d42ccf0887773f6e8 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 02:38:54 +0800 Subject: [PATCH 092/232] feat(dx): scopeHost, agent-aware ACP presentation, and the scoped-dispatch drift gate scopeHost(ctx, services) is the sanctioned way to mint scopes in tests: it names absent services loudly instead of the cryptic cordis without-inject dead end, and catches the silent-no-op host (cordis resolves a dependency-pending fiber's await without running the inject callback). The ACP ToolPresenter resolves presentations through the session agent's view (tools.get(name, agent)) so a scoped/shadowed tool renders with the same definition that executed. verify-scoped-dispatch (doc-sync + pre-push) pins the dev-invariants carrier table against the declaration JSDoc set: an event enforced but undocumented, documented but unenforced, or a registry-subject notification leaking into the table fails the build. subagent/start|end docs gain their scoped-dispatch sentence (a real gap the gate caught on first run). --- docs/cordis-catalog/events.md | 8 +-- docs/cordis-catalog/services.md | 2 +- docs/event-producer-consumer.md | 4 +- package.json | 3 +- packages/core/scope/src/index.ts | 56 ++++++++++++++++++ packages/core/scope/tests/scope.spec.ts | 23 +++++++- packages/subagent/subagent/src/index.ts | 8 +++ packages/ui/acp/src/index.ts | 20 +++++-- scripts/run-gates.ts | 1 + scripts/verify-scoped-dispatch.ts | 78 +++++++++++++++++++++++++ 10 files changed, 188 insertions(+), 15 deletions(-) create mode 100644 scripts/verify-scoped-dispatch.ts diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index c748f30690..798b38b02f 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -237,13 +237,13 @@ Source: [`packages/core/session/src/index.ts:79`](../../packages/core/session/sr ### `subagent/end` — emit -A subagent run settled — emitted when SubagentRun.result resolves (any stop reason). Paired with Events['subagent/start']. +A subagent run settled — emitted when SubagentRun.result resolves (any stop reason). Paired with Events['subagent/start']. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by the DELEGATING PARENT — a listener registered through the parent's `agent.ctx` observes only its own delegations; a plain plugin listener observes every run. ```ts cordis-catalog 'subagent/end'(info: SubagentRunEndInfo): void ``` -Source: [`packages/subagent/subagent/src/index.ts:99`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:107`](../../packages/subagent/subagent/src/index.ts) ### `subagent/provider-added` — emit @@ -267,13 +267,13 @@ Source: [`packages/subagent/subagent/src/index.ts:84`](../../packages/subagent/s ### `subagent/start` — emit -A subagent run started — emitted after the provider is resolved and its capabilities validated, as the child run begins. Paired with Events['subagent/end']. +A subagent run started — emitted after the provider is resolved and its capabilities validated, as the child run begins. Paired with Events['subagent/end']. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by the DELEGATING PARENT — a listener registered through the parent's `agent.ctx` observes only its own delegations; a plain plugin listener observes every run. ```ts cordis-catalog 'subagent/start'(info: SubagentRunInfo): void ``` -Source: [`packages/subagent/subagent/src/index.ts:92`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:96`](../../packages/subagent/subagent/src/index.ts) ## `system-prompt/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 8ebc65c5b3..42336012de 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -197,7 +197,7 @@ list(): string[] start(name: string, request: SubagentStartRequest): SubagentRun ``` -Source: [`packages/subagent/subagent/src/index.ts:145`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:153`](../../packages/subagent/subagent/src/index.ts) ## `ctx.systemPrompt` — `SystemPrompt` diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index dc33defc00..f93e808694 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -25,10 +25,10 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `session/created` | `emit` | [`packages/core/session/src/index.ts:47`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence) | | `session/event` | `emit` | [`packages/core/session/src/index.ts:61`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence), [`stdio-agent`](../packages/ui/stdio-agent) | | `session/flush` | `parallel` | [`packages/core/session/src/index.ts:79`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | -| `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:99`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | +| `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:107`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:73`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | | `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:84`](../packages/subagent/subagent/src/index.ts) | - | [`tool-subagent`](../packages/subagent/tool-subagent) | -| `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:92`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | +| `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:96`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:44`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | | `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:54`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | | `tools/change` | `emit` | [`packages/core/tools/src/index.ts:112`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | diff --git a/package.json b/package.json index bba471ea5f..df22b4846e 100644 --- a/package.json +++ b/package.json @@ -57,9 +57,10 @@ "gen-persistence-catalog": "tsx scripts/gen-persistence-catalog.ts", "verify-persistence-catalog": "tsx scripts/gen-persistence-catalog.ts --check", "gen-module-graph": "tsx scripts/gen-module-graph.ts", + "verify-scoped-dispatch": "tsx scripts/verify-scoped-dispatch.ts", "verify-module-graph": "tsx scripts/gen-module-graph.ts --check", "constraints": "tsx scripts/check-workspace-constraints.ts", - "doc-sync": "pnpm run doc-typecheck && pnpm run verify-cordis-catalog && pnpm run verify-export-jsdoc && pnpm run verify-tool-catalog && pnpm run verify-config-catalog && pnpm run verify-persistence-catalog && pnpm run verify-doc-graphs && pnpm run verify-md-wrap && pnpm run verify-md-links && pnpm run verify-doc-refs && pnpm run verify-package-paths && pnpm run verify-mermaid && pnpm run verify-rfc-classification && pnpm run verify-rfc-format && pnpm run verify-type-equiv && pnpm run verify-translation-pairing && pnpm run verify-doc-budgets", + "doc-sync": "pnpm run doc-typecheck && pnpm run verify-cordis-catalog && pnpm run verify-export-jsdoc && pnpm run verify-tool-catalog && pnpm run verify-config-catalog && pnpm run verify-persistence-catalog && pnpm run verify-doc-graphs && pnpm run verify-scoped-dispatch && pnpm run verify-md-wrap && pnpm run verify-md-links && pnpm run verify-doc-refs && pnpm run verify-package-paths && pnpm run verify-mermaid && pnpm run verify-rfc-classification && pnpm run verify-rfc-format && pnpm run verify-type-equiv && pnpm run verify-translation-pairing && pnpm run verify-doc-budgets", "hygiene": "pnpm run knip && pnpm run publint && pnpm run constraints && pnpm run verify-node-next-types", "demo:echo": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/echo-agent/cordis.yml", "demo:repl": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/coding-agent/cordis.yml", diff --git a/packages/core/scope/src/index.ts b/packages/core/scope/src/index.ts index ceb1cccba9..63ca338de7 100644 --- a/packages/core/scope/src/index.ts +++ b/packages/core/scope/src/index.ts @@ -235,3 +235,59 @@ export function carrierKeyOf(value: unknown): ScopeKey | undefined { // the Scoped<> brand carries no structural kCarrier member to narrow from. return (value as { [kCarrier]?: { key: ScopeKey | undefined } })[kCarrier]?.key } + +/** + * A test/tooling host for minting scopes: one mounted plugin whose `inject` + * list is the service surface every scope minted through it can reach. + */ +export interface ScopeHost { + /** + * Mint a scope under the host (see {@link createScope}); the scoped context + * resolves exactly the host's injected services. + * @param key - the scope's identity ({@link ScopeKey}). + * @returns the minted scope. + */ + mint(key: ScopeKey): Scope + /** + * Dispose the host fiber and with it every scope minted through it. + * @returns resolves when all collected disposers have settled. + */ + dispose(): Promise +} + +/** + * Mount a scope-minting host plugin that injects `services`, THE sanctioned + * way to mint scopes in tests (production scopes are minted by the agent + * loop). Exists because the naive spelling fails confusingly twice over: + * a plugin with no `inject` mints scopes whose service reads throw Cordis's + * cryptic `cannot get property … without inject`, and a plugin whose inject + * can never be satisfied RESOLVES its fiber await without ever running the + * callback — a silent no-op host. This helper fails LOUD instead: when the + * callback did not run, it names the absent services and disposes the host. + * @param ctx - the context to mount the host under. + * @param services - the service names scopes minted through this host reach + * (the host plugin's `inject` list). + * @returns the host (mint scopes, dispose them all at once). + * @throws when any of `services` is not available on `ctx` — named, not the + * Cordis dead end. + */ +export async function scopeHost(ctx: Context, services: string[]): Promise { + let hostCtx: Context | undefined + // A named function statement (not Object.assign({name}) — Function.name is + // read-only) so diagnostics read `scopeHost`. + function scopeHostPlugin(inner: Context): void { hostCtx = inner } + const fiber = ctx.plugin(Object.assign(scopeHostPlugin, { inject: services })) + await fiber + if (hostCtx === undefined) { + // Dependency-pending: cordis resolves the await without running the + // callback. Name the absentees and unwind the pending fiber. + const missing = services.filter(name => ctx.get(name) === undefined) + await fiber.dispose() + throw new Error(`scopeHost: service${missing.length === 1 ? '' : 's'} ${missing.map(name => `"${name}"`).join(', ') || '(unknown)'} not available on this context — load the providing plugin(s) before minting scopes`) + } + const host = hostCtx + return { + mint: (key: ScopeKey) => createScope(host, key), + dispose: () => Promise.resolve(fiber.dispose()), + } +} diff --git a/packages/core/scope/tests/scope.spec.ts b/packages/core/scope/tests/scope.spec.ts index 5350a539f0..85281a65be 100644 --- a/packages/core/scope/tests/scope.spec.ts +++ b/packages/core/scope/tests/scope.spec.ts @@ -1,6 +1,6 @@ import { describe, expect, expectTypeOf, it } from 'vitest' import { Context } from 'cordis' -import { carrierKeyOf, createScope, isScopeCarrier, scopeOf, scopeTarget } from '@deepseek-ai/dsh-scope' +import { carrierKeyOf, createScope, isScopeCarrier, scopeHost, scopeOf, scopeTarget } from '@deepseek-ai/dsh-scope' import type { Scope, ScopeKey, Scoped } from '@deepseek-ai/dsh-scope' declare module 'cordis' { @@ -207,3 +207,24 @@ describe('carrier marks', () => { expectTypeOf(base).not.toExtend>() }) }) + +describe('scopeHost', () => { + it('mints scopes that reach the injected services; dispose unwinds them all', async () => { + const ctx = new Context() + ctx.provide('answers', { value: 42 }) + const host = await scopeHost(ctx, ['answers']) + const scope = host.mint({ name: 'a' }) + expect((scope.ctx as Context & { answers: { value: number } }).answers.value).toBe(42) + const order: string[] = [] + scope.ctx.effect(() => () => void order.push('scoped-disposed')) + await host.dispose() + expect(order).toEqual(['scoped-disposed']) + expect(() => scope.ctx.effect(() => () => {})).toThrow(/inactive context/) + }) + + it('fails LOUD naming absent services instead of resolving as a silent no-op host', async () => { + const ctx = new Context() + await expect(scopeHost(ctx, ['tools', 'systemPrompt'])) + .rejects.toThrow('scopeHost: services "tools", "systemPrompt" not available') + }) +}) diff --git a/packages/subagent/subagent/src/index.ts b/packages/subagent/subagent/src/index.ts index fc78efa674..850958048a 100644 --- a/packages/subagent/subagent/src/index.ts +++ b/packages/subagent/subagent/src/index.ts @@ -86,6 +86,10 @@ declare module 'cordis' { * A subagent run started — emitted after the provider is resolved and its * capabilities validated, as the child run begins. Paired with * {@link Events['subagent/end']}. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed + * by the DELEGATING PARENT — a listener registered through the parent's + * `agent.ctx` observes only its own delegations; a plain plugin listener + * observes every run. * @param info - which provider started which child agent. * @mode emit */ @@ -93,6 +97,10 @@ declare module 'cordis' { /** * A subagent run settled — emitted when {@link SubagentRun.result} * resolves (any stop reason). Paired with {@link Events['subagent/start']}. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed + * by the DELEGATING PARENT — a listener registered through the parent's + * `agent.ctx` observes only its own delegations; a plain plugin listener + * observes every run. * @param info - the run identity plus stop reason and final output. * @mode emit */ diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index b4fa277311..e11133aa36 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -213,7 +213,7 @@ export function apply(ctx: Context, config: AcpConfig): void { const tools = ctx.tools // A new ToolPresenter per session (and a throwaway per load replay), each given // this warn sink so a throwing tool presenter is logged, not propagated. - const makePresenter = (): ToolPresenter => new ToolPresenter(tools, (message) => { logger.warn(message) }) + const makePresenter = (agent?: Agent): ToolPresenter => new ToolPresenter(tools, (message) => { logger.warn(message) }, agent) // Live sessions keyed by id (RFC 011 multi-session), plus an agent→sessionId // reverse map so `agent/*` events (which carry only the Agent) demux in O(1). @@ -449,7 +449,7 @@ export function apply(ctx: Context, config: AcpConfig): void { sessionId, agent: handle.agent, dispose: () => handle.dispose(), - presenter: makePresenter(), + presenter: makePresenter(handle.agent), terminalEnabled: terminalOutputCap, inflight: undefined, }) @@ -526,7 +526,7 @@ export function apply(ctx: Context, config: AcpConfig): void { sessionId, agent, dispose: () => handle.dispose(), - presenter: makePresenter(), + presenter: makePresenter(agent), terminalEnabled, inflight: undefined, } @@ -544,7 +544,7 @@ export function apply(ctx: Context, config: AcpConfig): void { // future live events for this session. The throwaway pairs call→result // as the log replays in order (same as live) and is discarded after, // so the record's presenter starts clean for the post-load live stream. - const replayPresenter = makePresenter() + const replayPresenter = makePresenter(agent) const replayTerminal: TerminalRendering = { enabled: terminalEnabled, cwd: agent.session.header.cwd, @@ -897,6 +897,13 @@ export class ToolPresenter { constructor( private readonly tools: Pick, private readonly onError: (message: string) => void = () => {}, + /** + * The agent whose view resolves tool presentations: a scoped/shadowed + * tool presents with ITS OWN presentCall/presentResult — the same + * definition that executed — not a same-named global's. Absent (a replay + * with no live agent) the global view presents. + */ + private readonly agent?: Agent, ) {} /** @@ -913,7 +920,7 @@ export class ToolPresenter { const args = parseToolArguments(argsJson) let present: ToolCallView | undefined try { - present = this.tools.get(name)?.presentCall?.(args) + present = this.tools.get(name, this.agent)?.presentCall?.(args) } catch (error: unknown) { // A throwing presentCall must not break streaming: log and fall back. this.onError(`acp: tool "${name}" presentCall threw, using generic presentation: ${String(error)}`) @@ -947,7 +954,8 @@ export class ToolPresenter { if (call === undefined) return { card: 'generic', content } let present: ToolResultView | undefined try { - present = this.tools.get(call.name)?.presentResult?.(call.args, { content, isError, ...meta !== undefined ? { meta } : {} }) + present = this.tools.get(call.name, this.agent) + ?.presentResult?.(call.args, { content, isError, ...meta !== undefined ? { meta } : {} }) } catch (error: unknown) { // A throwing presentResult must not break streaming/replay: log + fall back. this.onError(`acp: tool "${call.name}" presentResult threw, using raw result: ${String(error)}`) diff --git a/scripts/run-gates.ts b/scripts/run-gates.ts index 6c844f842a..51b634267e 100644 --- a/scripts/run-gates.ts +++ b/scripts/run-gates.ts @@ -262,6 +262,7 @@ function docSyncLeafGates(): Gate[] { pnpmScript('config-catalog', 'verify-config-catalog', { label: 'config catalog' }), pnpmScript('persistence-catalog', 'verify-persistence-catalog', { label: 'persistence catalog' }), pnpmScript('doc-graphs', 'verify-doc-graphs', { label: 'doc graphs' }), + pnpmScript('scoped-dispatch', 'verify-scoped-dispatch', { label: 'scoped dispatch' }), pnpmScript('markdown-wrap', 'verify-md-wrap', { label: 'markdown wrap' }), pnpmScript('markdown-links', 'verify-md-links', { label: 'markdown links' }), pnpmScript('doc-refs', 'verify-doc-refs', { label: 'doc refs' }), diff --git a/scripts/verify-scoped-dispatch.ts b/scripts/verify-scoped-dispatch.ts new file mode 100644 index 0000000000..214d55f7dc --- /dev/null +++ b/scripts/verify-scoped-dispatch.ts @@ -0,0 +1,78 @@ +/** + * Scoped-dispatch drift gate: the set of scope-filtered events is declared in + * TWO places that must never diverge — the dev-invariants runtime table (the + * `scopedSubject` map in `packages/support/invariants/src/index.ts`, which + * enforces carriers at dispatch time) and the event declarations' JSDoc (the + * "Scope-filtered dispatch" sentence rendered into the events catalog, which + * tells plugin authors what a scoped listener will and won't hear). An event + * added to one side without the other either silently escapes runtime + * enforcement or documents filtering that never happens; this gate fails the + * build instead. + * + * Sources of truth: the invariant table is parsed from the invariants source; + * the documented set is parsed from every `declare module 'cordis'` Events + * JSDoc in packages/*\/*\/src carrying the marker sentence. Registry-subject + * notifications (`tools/change`, `system-prompt/change`, `subagent/provider-*`) + * are deliberately unfiltered and must appear in NEITHER set. + */ + +import { globSync, readFileSync } from 'node:fs' +import { resolve } from 'node:path' + +const root = resolve(import.meta.dirname, '..') + +/** The marker sentence every scope-filtered event's JSDoc carries. */ +const MARKER = 'Scope-filtered dispatch' + +/** Events that are deliberately UNFILTERED registry-subject notifications. */ +const REGISTRY_SUBJECT = new Set(['tools/change', 'system-prompt/change', 'subagent/provider-added', 'subagent/provider-removed']) + +function invariantTable(): Set { + const source = readFileSync(resolve(root, 'packages/support/invariants/src/index.ts'), 'utf8') + const start = source.indexOf('const scopedSubject') + if (start < 0) throw new Error('verify-scoped-dispatch: cannot find the scopedSubject table in dsh-invariants') + const block = source.slice(start, source.indexOf('}', start)) + return new Set([...block.matchAll(/'([a-z-]+\/[a-z-]+)':/g)].flatMap(match => match[1] === undefined ? [] : [match[1]])) +} + +function documentedSet(): Set { + const documented = new Set() + for (const rel of globSync('packages/*/*/src/**/*.ts', { cwd: root })) { + const source = readFileSync(resolve(root, rel), 'utf8') + if (!source.includes(MARKER)) continue + // Each event declaration: a JSDoc block followed by the quoted event name. + // Tolerate `//` comment lines between the JSDoc and the declaration + // (e.g. an inline TODO under the doc block). + for (const match of source.matchAll(/\/\*\*([\s\S]*?)\*\/\s*\n(?:\s*\/\/[^\n]*\n)*\s*'([a-z-]+\/[a-z-]+)'\(/g)) { + const [, doc, event] = match + if (doc === undefined || event === undefined) continue + if (doc.includes(MARKER)) documented.add(event) + } + } + return documented +} + +const table = invariantTable() +const documented = documentedSet() + +const problems: string[] = [] +for (const event of table) { + if (!documented.has(event)) { + problems.push(`"${event}" is enforced by the dev-invariants carrier table but its declaration JSDoc carries no "${MARKER}" sentence — document the filtering plugin authors will observe.`) + } + if (REGISTRY_SUBJECT.has(event)) { + problems.push(`"${event}" is a registry-subject notification (deliberately unfiltered) but appears in the dev-invariants carrier table.`) + } +} +for (const event of documented) { + if (!table.has(event)) { + problems.push(`"${event}" documents scope-filtered dispatch but is missing from the dev-invariants carrier table (packages/support/invariants) — a bare dispatch of it would silently revert to global delivery.`) + } +} + +if (problems.length > 0) { + console.error(`verify-scoped-dispatch: ${problems.length} drift(s) between the invariant table and the documented scoped-event set:`) + for (const problem of problems) console.error(` - ${problem}`) + process.exit(1) +} +console.log(`verify-scoped-dispatch: ${table.size} scope-filtered event(s) consistent between the invariant table and the declaration docs.`) From cc24e79cd2b0650880886143a5bf6abdb5840d88 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 03:01:11 +0800 Subject: [PATCH 093/232] docs: agent-scope RFC, CONTEXT.md glossary, architecture scope section, README sync MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The agent-scope-contexts RFC (implemented) records the decision tree: the dsh-scope primitive over cordis extend/Context.filter/no-op fibers, two-level flat scope with shadowing, restriction/grant semantics, the scoped-dispatch rule with fused helpers, the setup window, and the alternatives (explicit scope params, isolate, event-filtering-only, vendored support) with why each lost. CONTEXT.md pins the glossary. architecture.md gains the Agent Scope section, the dsh-scope spine row, the scoped turn-flow line, and an extension-table row (ceiling 1640→1790: the two-layer registration model is a new architectural axis; additions are condensed to pointers). READMEs of every touched package re-state their scoped facts; the stale structured-runtime README section is replaced by the scoped-registration description. --- CONTEXT.md | 15 ++++++++ docs/architecture.md | 8 ++++- docs/rfc/INDEX.md | 1 + .../2026-07-08-agent-scope-contexts.md | 35 +++++++++++++++++++ packages/core/README.md | 3 ++ packages/core/agent-loop/README.md | 2 ++ packages/core/agent/README.md | 2 ++ packages/core/session/README.md | 3 +- packages/core/system-prompt/README.md | 12 +++---- packages/core/tools/README.md | 13 ++++--- .../subagent/subagent-inprocess/README.md | 16 ++++----- packages/subagent/subagent/README.md | 2 +- scripts/doc-budgets.manifest.json | 2 +- 13 files changed, 90 insertions(+), 24 deletions(-) create mode 100644 CONTEXT.md create mode 100644 docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md diff --git a/CONTEXT.md b/CONTEXT.md new file mode 100644 index 0000000000..7fd11ae59e --- /dev/null +++ b/CONTEXT.md @@ -0,0 +1,15 @@ +# Context glossary + +Domain vocabulary for the DeepSeek Harness SDK — one canonical term per concept. Terms link with `[[name]]`; implementation detail stays in the package READMEs and RFCs. + +## agent-scope + +- **scope** — the unit of per-agent registration: a contribution (tool, prompt section, variable, restriction, listener) is either *global* (visible to every agent) or *scoped* (owned by exactly one [[scope-key]]). Two levels, flat: nothing inherits down to subagents; subtree behavior is expressed with [[lineage]] data, never structure. +- **scope key** — the opaque identity a scope is keyed by, compared by object identity. The harness convention: a live agent is the key of its own scope. +- **agent context (`agent.ctx`)** — the agent's scoped context; registrations through it are scope-visible AND scope-lifetime (one fact drives both), and listeners on it hear only that agent's dispatches. +- **scope carrier** — the `thisArg` a scope-filtered dispatch carries (built by `scopeTarget`); its filter admits untagged listeners plus the subject's own. A *subject-less* carrier (no key) admits untagged listeners only. +- **scoped dispatch** — the rule: an event about one agent's activity dispatches with that agent's carrier. Events about a registry itself (a tool was added) are *registry-subject* and stay unfiltered. +- **shadowing** — most-specific-wins name resolution: a scoped tool/section/variable replaces its same-named global twin for that scope alone. The per-agent persona and per-agent tool-variant mechanism. +- **restriction / grant** — a restriction (`tools.restrict`) masks the GLOBAL tool surface for one scope (compose by intersection); a scoped registration is an explicit grant that bypasses restrictions. A restricted-away tool is absent from the prompt AND refuses execution, indistinguishably from a nonexistent one. +- **setup window** — the creation slot where a creator composes an agent's scoped world (`CreateAgentOptions.setup`): after the scope exists and the agent is registered, before `agent/session-start` and the first prompt assembly. Setup registers; it never drives the agent. +- **lineage** — parent/child facts carried as data (`parentSession`, `subagentDepth`); never affects visibility. diff --git a/docs/architecture.md b/docs/architecture.md index 02dac4a2dd..b668edfefd 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -14,6 +14,7 @@ The default distribution is a composition, not a hierarchy. `packages/core/` is | ctx key | Package | Role | |---|---|---| +| — | [`dsh-scope`](../packages/core/scope/README.md) | scoped-context registration primitive (library) | | `ctx.sessions` | `dsh-session` | in-memory event-sourced sessions | | `ctx.systemPrompt` | `dsh-system-prompt` | ordered prompt sections, tool schemas, and prompt variables | | `ctx.tools` | `dsh-tools` | tool registry and [execution pipeline](tool-execution-pipeline.md) | @@ -58,7 +59,7 @@ A **session** is one agent's append-only event log. A **turn** drains one queued ### Turn Flow ```text -create agent -> emit agent/session-start(source) +create agent -> mint agent scope (agent.ctx) -> run creation setup -> emit agent/session-start(source) forever: wait for queued messages emit agent/status(running) @@ -103,6 +104,10 @@ Every session event is turn-enclosed. Reloading a crashed session preserves the `ctx.agents` owns live agents and returns an `AgentHandle { agent, dispose() }`. `Agent` is the surface other plugins drive: `send()` queues work, `steer()` injects mid-turn content, `inject()` appends context and opens a one-shot injection turn when idle, `cancel()` is the public stop primitive, and `whenIdle()` observes quiescence. Lifecycle owners tear down with `await dispose()`. +### Agent Scope + +Every live agent owns a scope context, `agent.ctx` ([`dsh-scope`](../packages/core/scope/README.md), key = the agent). Registrations through it — tools, prompt sections/variables, listeners, `tools.restrict()` masks — are visible to that agent alone, SHADOW same-named global contributions for it (per-agent personas and tool variants), and unwind with the agent; an `agent.ctx` listener hears only that agent's dispatches, while events about one agent dispatch with its scope carrier. `CreateAgentOptions.setup(agentCtx)` composes a child's scoped world at creation (the subagent seam's `persona`/`toolFilter`) — setup registers, never drives. Dev invariants enforce carrier/subject identity; `verify-scoped-dispatch` pins enforced ⇔ documented. Rationale: [agent-scope RFC](rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md). + ## State And Model Surface ### Session Log @@ -145,5 +150,6 @@ New behavior should attach to a documented seam; changing the shipped loop requi | Add UI or editor integration | drive `ctx.agents` and render from `session/event` | | Add durable session state | add a `SessionEventMap` member and render/replay from the log | | Fork a live session | use `ctx.sessions.fork(source, boundary?, childSessionId?)` | +| Scope a tool, prompt section, or listener to ONE agent | register it through that agent's `agent.ctx` (see Agent Scope) | The [extension cookbook](cookbook/extension-cookbook.md) carries plugin skeletons and the feature-to-seam map; step-by-step guides cover [packages](cookbook/adding-a-package.md), [tools](cookbook/adding-a-tool.md), [LLM adapters](cookbook/adding-an-llm-adapter.md), and [vendored packages](cookbook/adding-a-vendored-package.md). diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index d6d0ce747b..677e4eafb5 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -123,6 +123,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [Prompt variables and tool-guidance ownership](implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md) | 2026-07-05 | | [Every LLM request is reconstructable from the session log](implemented/architecture/2026-07-05-reconstructable-requests.md) | 2026-07-05 | | [Subagent provider-lifecycle events — `subagent/provider-added` / `subagent/provider-removed`](implemented/architecture/2026-07-05-subagent-provider-lifecycle-events.md) | 2026-07-05 | +| [The agent is a registration scope](implemented/architecture/2026-07-08-agent-scope-contexts.md) | 2026-07-08 | ### Process diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md new file mode 100644 index 0000000000..7c140f1ec6 --- /dev/null +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -0,0 +1,35 @@ +# RFC: The agent is a registration scope + +Status: implemented + +## Problem + +The runtime is multi-agent — configuration can declare several agents, the ACP bridge creates one agent per client session, and the in-process subagent backends spawn/fork children as sibling agents on the same Cordis context — yet every extension surface was context-global. One tool registry fed every agent's prompt (a child spawned to summarize a file was offered bash, file-write, and the delegation tool itself, unbounded); one section list rendered the same persona for everyone (`SubagentStartRequest` could not express a per-child persona at all); every `agent/*`, `session/*`, and `tools/*` listener fired for every agent, so a decider waterfall written for one agent silently governed all of them unless its author remembered to self-filter. The gap was visible in the API: `SubagentCapabilities.toolFilter` was public vocabulary, yet every real provider declared `toolFilter: false` because per-agent tool visibility was unimplementable, and `structured.ts` carried a FIXME documenting the placeholder-schema/final-assembly-swap/refcount dance forced by global registration. + +## Decision + +Make the agent a registration scope, using the framework's own machinery rather than per-registry bolt-ons: + +- **`dsh-scope`** (`packages/core/scope`, peer-deps cordis only, below `dsh-session`/`dsh-system-prompt` in the module-graph DAG): `createScope(ctx, key)` mints a tagged context over a synchronously-usable no-op-plugin fiber; `scopeOf(ctx)` reads the tag through the prototype chain; `scopeTarget(base, key)` builds the scope-filtered dispatch carrier over cordis `Context.filter`, composing the base's own filter, branded `Scoped` and runtime-marked for the dev invariants; `Scope.rawDispose` exposes the exact cordis disposer so a composite effect nests the scope's teardown at its yield position; `scopeHost` is the fail-loud test-side minter. +- **Ownership and visibility derive from ONE fact** — which context a registration went through: the scope's fiber owns the disposal, and the tag decides who sees it. An explicit `{ scope }` registration parameter could express "visible to X, disposed with Y", which is almost always a bug; the scoped context makes it unrepresentable. +- **`Agent.ctx`**: every live agent owns a scope context (key = the agent), minted inside the loop's composite lifecycle effect. Yield order gives teardown stop/drain → unregister → detach session → unwind scope; detach before the (async) scope unwind keeps store/registry rollback synchronous on every failure path, so a caller catching a throwing `create()` observes no half-created agent or session. `CreateAgentOptions.setup(agentCtx)` runs after the scope is minted and the agent registered, before `agent/session-start` and the loop start — setup REGISTERS the scoped world, it never drives (a dev invariant makes a pre-session-start turn a teaching error). +- **Two registration layers with shadowing**: `ctx.tools` and `ctx.systemPrompt` file a registration by the calling context's tag; a scoped tool/section/variable is visible to that agent alone, unwinds with it, and SHADOWS a same-named global contribution for that agent (most-specific-wins; within one layer duplicates still throw). Shadowing is the per-agent persona mechanism (a scoped `deployment:persona`) and the per-agent tool-variant mechanism (a scoped `bash` with the same model-facing name). +- **`tools.restrict({allow?, deny?})`**: a scoped, snapshot-at-registration mask over the GLOBAL tool surface with loud unknown-name validation; multiple restrictions intersect; scoped registrations are explicit grants that bypass restriction (what keeps a structured capture tool alive under an allow-list). One visibility function feeds prompt assembly, `get(name, scope?)`, and `execute`, so what the model is shown, what a presenter renders, and what dispatches can never disagree; out-of-view execution is `UNKNOWN_TOOL`, indistinguishable from nonexistent. +- **Scoped dispatch by rule**: an event about one agent's activity dispatches with that agent's carrier — all `agent/*` (via the fused `agentEvents(ctx, agent)`, which injects carrier and subject in one move so the correct dispatch is the shortest spelling), `session/created|event|flush` (carrier captured at `SessionStore.enter` from the entering context; `ctx.sessions.flush(session)` owns the awaited checkpoint dispatch), `tools/pre|post-execute` (by `exec.agent`), `system-prompt/assemble` (by `context.scope`; `assembleContextFor(agent)` builds the context), and `subagent/start|end` (by the delegating parent). Registry-subject notifications (`tools/change`, `system-prompt/change`, `subagent/provider-*`) stay deliberately unfiltered. A listener registered through `agent.ctx` hears only its agent; plain plugin listeners keep hearing everything; `{ global: true }` bypasses filtering. +- **Enforcement**: dev-invariants assert at cordis's `internal/dispatch` seam that every scoped-family dispatch carries a carrier keyed to the same subject its arguments name, and that an assembly context never carries `agent` without `scope`; the `verify-scoped-dispatch` gate pins the invariant table against the declaration docs so the two cannot drift. +- **The seam becomes honest**: spawn/fork advertise `{ outputSchema, depthLimit, toolFilter, persona }` all true (ACP all false); the driver composes the child's scoped world in the setup window; a parent-scope teardown effect links each child to its parent through the memoized handle (structured concurrency — a disposed parent reaches its subtree even if the delegating tool's `finally` never runs); `structured.ts` collapses to scoped registrations with a call-keyed two-phase commit and one scoped prepend re-assert listener. + +## Alternatives considered + +- **Explicit scope parameters on every registration API** (`tools.register(def, {agent})`): forgettable — omitting the option is global, so leak-by-default survives; no lifecycle coupling; and it can express visible-to-X-disposed-with-Y, which is almost always a bug. +- **Per-agent `ctx.isolate()` service instances**: isolation is a bulkhead for co-hosting independent applications, not intra-app scoping. Resolution picks exactly one instance per name — "deployment tools plus my tools" needs a hand-built delegating merge registry per service — and single-subscription observers (persistence, the ACP bridge) would have to discover and subscribe per agent. +- **Event-filtering only** (scoped listeners, global registries): leaves the model-visible surfaces — tool schemas, personas — unscoped, which is the half that makes `toolFilter` and per-child personas impossible. +- **Vendored-cordis support** (a first-class scope concept in the framework): more invasive vendor drift for no additional capability; `extend` + `Context.filter` + a no-op plugin fiber already compose the same semantics from public primitives. + +## Consequences + +- Plugin authors get one new concept: register through `agent.ctx` for one agent, through your plugin context for everyone. The registration APIs are unchanged; scope-filtered events document themselves in the catalog. +- The loop's dispatch discipline is enforced three ways: `Scoped` `this`-types make a bare subject a compile error, the fused helpers make the correct spelling the shortest, and the dev invariants throw on a mis-keyed or missing carrier at the dispatching call site. +- `toolOrder` validates against the providers' pre-restriction `knownNames` universe, so a deployment order listing a global tool stays compatible with children that `restrict()` it away (a typo still fails every assembly loudly). +- A scoped listener's own disposer runs after the session leaves the store on teardown (detach precedes the scope unwind); it heard the final stop/drain flush while attached, so nothing durable is lost. +- Deliberately out of scope, buildable on the primitive with no core change: named profile registries (`agentCtx.plugin(...)` already works), per-agent `fs/*` policy, `llm/*` scoping, and background subagents (the parent-scope teardown effect is already shaped for them). diff --git a/packages/core/README.md b/packages/core/README.md index eee8e3eed0..4e61293034 100644 --- a/packages/core/README.md +++ b/packages/core/README.md @@ -4,6 +4,7 @@ The packages every harness build is assembled from: the session log, the system- | Package | Role | ctx key | |---|---|---| +| `scope/` | Scoped-context registration primitive (scope tags, scope-filtered dispatch) | (library — no ctx key) | | `session/` | Event-sourced session log + in-memory store | `ctx.sessions` | | `system-prompt/` | Prompt-section + tool-schema assembly registry | `ctx.systemPrompt` | | `tools/` | Tool registry + `tools/pre-execute`/`tools/post-execute` pipeline | `ctx.tools` | @@ -11,6 +12,8 @@ The packages every harness build is assembled from: the session log, the system- | `agent-loop/` | The concrete loop plugin: `ReactLoopAgent` + the loop driver | `ctx.agentLoop` | | `agent-core/` | Bundle plugin: the providerless/executor-less/UI-less spine as code | (loads the spine) | +`scope/` is the one non-service package here: a dependency-free library (`createScope`/`scopeOf`/`scopeTarget`) the registries and the loop build per-agent scoping on — it sits below `session/` and `system-prompt/` in the module graph precisely so they can consume it without a cycle. + `agent-loop` is the one concrete implementation of the `agent` seam and lives here because it is the harness's default product loop; everything else in `core/` is interface/vocabulary. Plugins depend on the `agent` vocabulary, never on `agent-loop` directly, so the loop stays swappable. `agent-core` is the composition counterpart: one bundle plugin that loads the whole providerless spine (`timer` + `llm` + sessions + system-prompt + tools + agents + invariants + `tool-bash` + `agent-loop`) and forwards `agent-loop`'s `agents` list as its own config. App packages (`ui/stdio-agent`, `ui/acp-agent`) consume it and add only a front door; a leaf adds the swappable backends plus any optional product tools it wants to expose. It lives in `core/` because it composes exclusively `core/` + interface packages and ships no provider, executor, or UI of its own. diff --git a/packages/core/agent-loop/README.md b/packages/core/agent-loop/README.md index ed651ca7f0..b00ad6aad1 100644 --- a/packages/core/agent-loop/README.md +++ b/packages/core/agent-loop/README.md @@ -8,6 +8,8 @@ This is the only package in the harness that contains concrete loop logic. Every ### Public API +Lifecycle (scoped): the composite creation effect mints the agent's scope (`agent.ctx`), enters the session through it (the session's dispatch carrier), registers the agent, runs `CreateAgentOptions.setup`, emits `agent/session-start`, then starts the loop; teardown runs stop/drain → unregister → detach session → unwind scope, keeping store/registry rollback synchronous on every failure path. All `agent/*` dispatches go through `agentEvents(ctx, agent)`; per-step assembly through `assembleContextFor(agent)`; the turn-end durability checkpoint through `ctx.sessions.flush(session)`. + - `ctx.agentLoop.create(id: string, options?: AgentOptions): ReactLoopAgent` — config-driven create: an agent on a fresh per-run session id `${id}-session-` (no cwd). Used for `cordis.yml`-configured agents. The per-run uuid avoids colliding with the on-disk log a prior run materialized once a durable persistence backend is loaded; each run is a new session (a deliberate demo simplification — a real resume-or-create policy is a TODO). Disposed with the calling fiber. `AgentLoop` also implements the `AgentFactory` seam and registers itself via `ctx.agents.setFactory(this)`, so plugins create/resume agents through `ctx.agents` (the interface): diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index 9e15356ed0..e0668ef761 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -8,6 +8,8 @@ Tracks live agents so UI, hook, and orchestrator plugins can find them without i ### Public API +The scoped-registration surface: `Agent.ctx` is the agent's scope context (`dsh-scope`, key = the agent) — register tools/sections/variables/listeners through it for that agent alone, all unwound on disposal. `agentEvents(ctx, agent)` is the fused dispatcher every agent-subject event goes through (carrier + injected subject in one move); `assembleContextFor(agent)` builds the per-agent assembly context (`agent` + `scope` together). `CreateAgentOptions.setup(agentCtx)` composes a child's scoped world at creation — setup registers, it never drives. + - `ctx.agents.register(agent: Agent): () => void` — record an **already-constructed** agent. Disposed with the calling fiber. - `ctx.agents.get(id: AgentId): Agent | undefined` - `ctx.agents.list(): Agent[]` diff --git a/packages/core/session/README.md b/packages/core/session/README.md index 0ae5bbf39e..767008d8ee 100644 --- a/packages/core/session/README.md +++ b/packages/core/session/README.md @@ -9,6 +9,7 @@ Creates and holds event-sourced `Session` instances. Persistence is intentionall ### Public API - `ctx.sessions.create(id?: SessionId, options?: { seed?: SessionEvent[]; meta?: { cwd?: string; parentSession?: SessionId; createdAt?: number; seedLength?: number } }): Session` — Create a session. `options.seed` replays/forks an existing event log; `options.meta` attaches creation metadata (validated absolute `cwd`, `parentSession` lineage, seed boundary) as the immutable `SessionHeader`. The store fills `version`/`id` and defaults `createdAt` to now; a caller reconstructing a persisted session passes the original `createdAt` and persisted `seedLength` to preserve them. Disposed with the calling fiber. +- `ctx.sessions.flush(session: Session): Promise` Dispatch the awaited `session/flush` durability checkpoint with the carrier captured at enter — THE flush entry point (the loop's turn-end checkpoint and idle injection call it; never dispatch a raw `ctx.parallel`). - `ctx.sessions.fork(source, boundary?, childSessionId?): Session` — Resolve a live session object or id, select a seed through the inclusive `boundary` event seq (default: current last event), require that boundary to be `turn/end`, and create a live child session with lineage metadata. - `ctx.sessions.get(id: SessionId): Session | undefined` - `ctx.sessions.list(): Session[]` @@ -28,7 +29,7 @@ Creates and holds event-sourced `Session` instances. Persistence is intentionall | Event | Mode | Purpose | |---|---|---| | `session/created` | emit | A session was created | -| `session/event` | emit | An event was appended (sync, fire-and-forget) | +| `session/event` | emit (scope-filtered by the owning session's scope) | An event was appended (sync, fire-and-forget) | | `session/flush` | parallel | Awaited durability checkpoint (persistence plugins drain buffers here) | ### Class: `Session` diff --git a/packages/core/system-prompt/README.md b/packages/core/system-prompt/README.md index 704cd8e80f..b890ad3cd5 100644 --- a/packages/core/system-prompt/README.md +++ b/packages/core/system-prompt/README.md @@ -13,21 +13,21 @@ System prompt assembly registry. Plugins contribute ordered text sections, tool- ### Public API -- `ctx.systemPrompt.section(section: PromptSection): () => void` Contribute a section. Duplicate names throw. Disposed with the calling fiber. -- `ctx.systemPrompt.tools(provider: () => ToolSchema[]): () => void` Contribute tool schemas (evaluated at each assembly). A provider must not return a schema named `TOOL_ORDER_REST`; that name is reserved for `toolOrder`'s rest entry. Disposed with the calling fiber. -- `ctx.systemPrompt.variable(name: string, provider: (context) => string | undefined): () => void` Contribute a prompt variable, referenced from section text as `{{name}}`. Duplicate or unreferenceable names throw; `undefined` means "no value for this assembly". Disposed with the calling fiber. -- `ctx.systemPrompt.assemble(context?: AssembleContext): Promise` Assemble the prompt for one caller. Runs through the `system-prompt/assemble` waterfall. Rejects when a configured `toolOrder` names a tool no provider contributed, or when a provider returns the reserved rest-entry name. +- `ctx.systemPrompt.section(section: PromptSection): () => void` Contribute a section. The layer is the CALLING context's scope: `agent.ctx` contributes to that agent alone, SHADOWING a same-named global section there (the per-agent persona mechanism — a scoped `deployment:persona`). Duplicate names within one layer throw. Disposed with the calling fiber. +- `ctx.systemPrompt.tools(provider: (context: AssembleContext) => ToolProviderResult): () => void` Contribute tool schemas, evaluated at each assembly with that assembly's context. `ToolProviderResult` = `{ schemas, knownNames? }`: `schemas` is the post-restriction visible set for `context.scope`; `knownNames` (defaulting to the schemas' names) is the pre-restriction universe `toolOrder` validates against. A provider must not return a schema named `TOOL_ORDER_REST`. Scoped providers are consulted only for their scope's assemblies. Disposed with the calling fiber. +- `ctx.systemPrompt.variable(name: string, provider: (context) => string | undefined): () => void` Contribute a prompt variable, referenced from section text as `{{name}}`. Scoped variables (via `agent.ctx`) shadow a same-named global for that agent. Duplicate-in-layer or unreferenceable names throw; `undefined` means "no value for this assembly". Disposed with the calling fiber. +- `ctx.systemPrompt.assemble(context?: AssembleContext): Promise` Assemble the prompt for one caller: the global layer merged with `context.scope`'s layer (scoped shadows global). Runs through the `system-prompt/assemble` waterfall (scope-filtered by `context.scope`). Rejects when a configured `toolOrder` names a tool outside the providers' `knownNames` universe (a restricted-away KNOWN tool is a normal absence), or when a provider returns the reserved rest-entry name. ### Events | Event | Mode | Purpose | |---|---|---| | `system-prompt/assemble` | waterfall | Mutate/extend the assembly (with the caller's context) before it reaches the model | -| `system-prompt/change` | emit | A section, tool provider, or variable was registered or unregistered | +| `system-prompt/change` | emit | A section, tool provider, or variable was registered or unregistered (possibly for one scope); deliberately unfiltered | ### Key types -- `AssembleContext` — what one `assemble()` call is FOR. Declared empty here and merge-extensible; `dsh-agent` declares `agent?: Agent`, so providers project per-agent facts. Providers must tolerate absent fields (a bare `assemble()` carries an empty context). +- `AssembleContext` — what one `assemble()` call is FOR. Merge-extensible; declares `scope?: ScopeKey` (the layer selector) here, and `dsh-agent` declares `agent?: Agent` (the typed DX field — never set without `scope`; use `assembleContextFor(agent)`). Providers must tolerate absent fields (a bare `assemble()` carries an empty, scope-less context). - `PromptSection` — `{ name, order, text: string | ((context) => string) }`. Sections are concatenated in ascending `order`. Order bands: `-100` is the harness identity, `0` the deployment persona (both registered by this plugin), tool guidance uses `100–199`; other negative orders also render before the persona. - `PromptAssembly` — `{ sections: AssembledSection[], tools: ToolSchema[], variables: Record }`. Section texts arrive resolved but not yet interpolated; `variables` holds every registered variable resolved against the context. Tool schemas are part of the assembly by design: "what the model is told it can do" is one coherent thing, even though adapters transmit schemas as a separate wire field. - `renderPrompt(assembly)` — interpolates `{{variable}}` references in each section, drops empty sections, joins with blank lines. STRICT: an unknown reference (`Object.hasOwn` lookup — prototype names like `{{constructor}}` are unknown), a registered-but-valueless reference, a malformed complete `{{…}}` group, or a `{{` that opens no complete group while a `}}` still follows (`{{{model}}}`) throws — fail loud beats shipping a malformed prompt. A lone `{{` with no `}}` anywhere after it passes through verbatim; substituted values are never re-scanned. diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index aea87ad76c..b42087b5d6 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -6,9 +6,12 @@ Tool registry and execution pipeline. Tool plugins register their schemas and ex ### Public API -- `ctx.tools.register(definition: ToolDefinition): () => void` Register a tool. Disposed with the calling fiber. -- `ctx.tools.get(name: string): ToolDefinition | undefined` -- `ctx.tools.schemas(): ToolSchema[]` Schemas of all registered tools (without the `execute` functions). The shipped tools' schemas are catalogued in [docs/tool-catalog.md](../../../docs/tool-catalog.md), generated by booting each tool plugin and harvesting this method (see [the tool-schema-catalog RFC](../../../docs/rfc/implemented/process/2026-07-02-tool-schema-catalog.md)). +- `ctx.tools.register(definition: ToolDefinition): () => void` Register a tool. The layer is the CALLING context's scope (`dsh-scope`): a plain plugin context registers globally; an agent's `agent.ctx` registers for that agent alone, SHADOWING a same-named global tool there (per-agent tool variants). Duplicate names within one layer throw. Disposed with the calling fiber (= the agent, for scoped registrations). +- `ctx.tools.restrict(filter: ToolRestriction): () => void` Scoped-only (throws on a plain context): mask the GLOBAL tool surface for the calling agent — `allow` keeps only the listed tools, `deny` removes them; multiple restrictions intersect; scoped registrations bypass restriction as explicit grants. Snapshot-at-registration, loud unknown-name validation, `restrict({})` rejects (the materialized-empty-config trap). +- `ctx.tools.get(name: string, scope?: ScopeKey): ToolDefinition | undefined` Resolution as one scope sees it (shadowing applied; a restricted-away global reads as absent) — presenters pass the calling agent so the card matches what executed. +- `ctx.tools.visible(scope?: ScopeKey): ToolDefinition[]` THE visibility function — restricted global layer ∪ the scope's own layer — feeding prompt assembly, `get`, and `execute`, so what the model sees and what dispatches can never disagree. +- `ctx.tools.knownNames(scope?: ScopeKey): string[]` The PRE-restriction name universe configuration (`toolOrder`, `restrict`) validates against: a typo fails loud while a restricted-away tool stays a normal absence. +- `ctx.tools.schemas(scope?: ScopeKey): ToolSchema[]` Schemas of everything the scope can see (without the `execute` functions). The shipped tools' schemas are catalogued in [docs/tool-catalog.md](../../../docs/tool-catalog.md), generated by booting each tool plugin and harvesting this method (see [the tool-schema-catalog RFC](../../../docs/rfc/implemented/process/2026-07-02-tool-schema-catalog.md)). - `ctx.tools.execute(exec: ToolExecution): Promise` Execute one tool call through the `tools/pre-execute` → dispatch → `tools/post-execute` pipeline. ### Injected services @@ -19,9 +22,9 @@ Tool registry and execution pipeline. Tool plugins register their schemas and ex | Event | Mode | Purpose | |---|---|---| -| `tools/pre-execute` | waterfall | Allow/deny gate BEFORE a tool runs (sandbox, permission, hooks); returns `PreToolDecision` | +| `tools/pre-execute` | waterfall | Allow/deny gate BEFORE a tool runs (sandbox, permission, hooks); returns `PreToolDecision`. Scope-filtered by `exec.agent`: an `agent.ctx` listener gates only its own agent | | `tools/post-execute` | waterfall | Inspect/replace the result AFTER a tool runs, attach context; returns `PostToolDecision` | -| `tools/change` | emit | A tool was registered or unregistered | +| `tools/change` | emit | A tool or restriction was registered or unregistered (possibly for one scope); deliberately unfiltered | ### Key types diff --git a/packages/subagent/subagent-inprocess/README.md b/packages/subagent/subagent-inprocess/README.md index f6870929a8..a5c293c7da 100644 --- a/packages/subagent/subagent-inprocess/README.md +++ b/packages/subagent/subagent-inprocess/README.md @@ -21,16 +21,14 @@ Runs a child as a child [`Agent`](../../core/agent) on the same cordis context ( ### Structured output (package-internal runtime) -The mechanism behind `outputSchema` for in-process children — acquired per structured RUN inside `startInProcessRun` (nothing is registered on a context that never runs a structured child; only the model-facing constants `STRUCTURED_OUTPUT_TOOL`/`STRUCTURED_OUTPUT_INSTRUCTION` are exported). One globally registered `structured_output` capture tool (its registered parameters are a placeholder) plus four listeners: +`attachStructuredRuntime(childCtx, schema)` registers the run's whole enforcement surface as SCOPED registrations on the child's `agent.ctx` — riding the child's fiber (a backend hot-reload mid-run cannot unregister anything; a disposed child leaves no residue) and visible to that child alone (two concurrent structured runs never interact; no placeholder schema, no strip-for-everyone-else, no refcounted global state): -- a `system-prompt/assemble` waterfall listener registered `prepend: true` that post-processes `await next()` — **final-assembly enforcement**: the assembly the loop renders never carries `structured_output` for an agent without a structured run, and for one that has it always carries the run's OWN schema (as the tool's `parameters`) plus the calling instruction as a trailing prompt section (the demand travels with the tool — `AgentOptions` has no per-agent prompt field to carry it). The loop logs the rendered assembly as the step's `request/header`, so the injection is reconstructable log state, never a wire-only mutation. Per-agent shaping lives here because the tool registry and prompt assembly are context-global while schemas differ per concurrent child (FIXME in the module doc: per-agent/per-session scoping would dissolve this); cooperative mutate-then-`next()` would not survive a downstream listener returning a replacement assembly. -- a `tools/post-execute` listener (`prepend: true` = outermost, so `await next()` yields the composed final decision) that COMMITS the capture: the tool body only stages the validated value, and it becomes the run's result only when the final decision accepts the call — a downstream block (a PostToolUse hook) turns the logged result into `isError`, and the run must not report `structured` success for a call the model and session log saw fail. -- a `tools/pre-execute` deny for any call arriving after the agent's capture — terminal means terminal WITHIN the step: a response listing `structured_output` before further tool calls cannot run side effects after the final answer was accepted. -- an `agent/turn-continuation` listener (also `prepend: true` — an earlier-registered force-continue listener returning without `next()` must not decide the turn before the veto runs) that stops a child's turn once its output is captured, so a successful capture doesn't buy a wasted extra model step. - -The capture tool validates each call against the run's schema (`validateStructuredValue`) — violations become an `INVALID_ARGS` isError result the model retries in-turn; a valid call stages the value for the post-execute commit. - -Lifetime is refcounted by live structured runs: each acquires at start and releases at settle, so the registrations exist exactly while at least one structured child is live, a backend hot-reload mid-run cannot unregister the capture tool under a live child, and the last settle disposes everything. `release()` is idempotent per acquisition. +- the `structured_output` capture tool with the run's REAL schema as its registered `parameters`, validating each call (`validateStructuredValue`) — violations become an `INVALID_ARGS` isError the model retries in-turn; a valid call STAGES the value keyed by its call id; +- the calling instruction as an ordinary order-190 scoped prompt section (the demand travels with the tool, as prompt state of exactly one agent); +- a scoped `system-prompt/assemble` re-assert (`prepend: true` = outermost): whatever downstream listeners mutate or replace, the child's assembly always carries its capture tool and instruction — the loop logs the rendered assembly as the step's `request/header`, so the demand is reconstructable log state; +- a scoped `tools/post-execute` COMMIT (`prepend: true`): the staged value becomes the run's result only when the final decision accepts THE SAME CALL that staged it — call-keyed, so a stale stage orphaned by an outer short-circuiting listener is dropped, never promoted on a later call's acceptance; +- a scoped `tools/pre-execute` deny for any call arriving after the capture — terminal means terminal WITHIN the step; +- a scoped `agent/turn-continuation` veto (`prepend: true`) stopping the child's turn once its output is captured, so a successful capture doesn't buy a wasted extra model step. ### `depthOf(agent): number` diff --git a/packages/subagent/subagent/README.md b/packages/subagent/subagent/README.md index 8bab4c61c9..695bd8f952 100644 --- a/packages/subagent/subagent/README.md +++ b/packages/subagent/subagent/README.md @@ -25,7 +25,7 @@ Unlike the bash seam (one executor per context, second load throws), **multiple ## Capabilities: two kinds, discovered two ways -- **Start-time features** (`outputSchema`, `depthLimit`, `toolFilter`) are a static `provider.capabilities` descriptor, checked by the service BEFORE a run exists. A request that needs one the provider lacks is **rejected loud** (`UNSUPPORTED_CAPABILITY`), never accepted-then-ignored. +- **Start-time features** (`outputSchema`, `depthLimit`, `toolFilter/persona`) are a static `provider.capabilities` descriptor, checked by the service BEFORE a run exists. A request that needs one the provider lacks is **rejected loud** (`UNSUPPORTED_CAPABILITY`), never accepted-then-ignored. - **Runtime features** (steering, resume) are **optional methods** on `SubagentRun` (`sendMessage?`, `resume?`). The method's presence IS the capability; TS narrowing is the discovery mechanism — a consumer cannot call an absent method without narrowing first, so there is no silent degradation path. Beside `capabilities` sits one DESCRIPTIVE fact, not validated by the service: `provider.inheritsParentContext` — whether a child sees the parent conversation (`fork`: true — seeded with the completed-turn prefix; `spawn`/`acp`: false). The model-facing consumer (`dsh-tool-subagent`) derives truthful tool wording from it. diff --git a/scripts/doc-budgets.manifest.json b/scripts/doc-budgets.manifest.json index fc2b9d12c2..33217097b2 100644 --- a/scripts/doc-budgets.manifest.json +++ b/scripts/doc-budgets.manifest.json @@ -1,7 +1,7 @@ { "AGENTS.md": 1691, "docs/AGENTS.md": 1315, - "docs/architecture.md": 1640, + "docs/architecture.md": 1790, "docs/cordis-primer.md": 550, "docs/defensive-patterns.md": 550, "docs/testing.md": 800, From e7b712453add87751457bf4e2466df184cacd264 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 03:41:37 +0800 Subject: [PATCH 094/232] test: close the per-file coverage gaps for the scoping surface Every subject-extractor row of the invariants carrier table is exercised with a matching and a foreign-keyed carrier; the HMR re-apply seed path (sessions of agents that predate the plugin are marked started) is pinned; the scoped tool-provider disposal, plural restrict() validation, singular scopeHost absentee, tool-subagent passthrough, stale-stage drop, and disposing-parent spawn (INACTIVE_EFFECT, no orphan) each gain their test. Two genuinely defensive branches carry justified v8-ignore markers. --- packages/core/scope/src/index.ts | 6 ++- packages/core/scope/tests/scope.spec.ts | 5 ++ .../core/system-prompt/tests/scoped.spec.ts | 13 +++++ packages/core/tools/tests/scoped.spec.ts | 1 + .../subagent/subagent-inprocess/src/index.ts | 2 + .../subagent-inprocess/src/structured.ts | 3 ++ .../tests/structured.spec.ts | 41 ++++++++++++++++ .../tests/subagent-spawn.spec.ts | 21 ++++++++- .../tool-subagent/tests/tool-subagent.spec.ts | 33 +++++++++++++ .../invariants/tests/invariants.spec.ts | 47 ++++++++++++++++++- 10 files changed, 169 insertions(+), 3 deletions(-) diff --git a/packages/core/scope/src/index.ts b/packages/core/scope/src/index.ts index 63ca338de7..6b40eff05d 100644 --- a/packages/core/scope/src/index.ts +++ b/packages/core/scope/src/index.ts @@ -283,7 +283,11 @@ export async function scopeHost(ctx: Context, services: string[]): Promise ctx.get(name) === undefined) await fiber.dispose() - throw new Error(`scopeHost: service${missing.length === 1 ? '' : 's'} ${missing.map(name => `"${name}"`).join(', ') || '(unknown)'} not available on this context — load the providing plugin(s) before minting scopes`) + /* v8 ignore next -- the '(unknown)' fallback is defensive: a pending + * fiber with zero absent services cannot occur (an all-present inject + * list runs the callback) */ + const named = missing.map(name => `"${name}"`).join(', ') || '(unknown)' + throw new Error(`scopeHost: service${missing.length === 1 ? '' : 's'} ${named} not available on this context — load the providing plugin(s) before minting scopes`) } const host = hostCtx return { diff --git a/packages/core/scope/tests/scope.spec.ts b/packages/core/scope/tests/scope.spec.ts index 85281a65be..e932ed80db 100644 --- a/packages/core/scope/tests/scope.spec.ts +++ b/packages/core/scope/tests/scope.spec.ts @@ -227,4 +227,9 @@ describe('scopeHost', () => { await expect(scopeHost(ctx, ['tools', 'systemPrompt'])) .rejects.toThrow('scopeHost: services "tools", "systemPrompt" not available') }) + + it('names a single absent service in the singular', async () => { + const ctx = new Context() + await expect(scopeHost(ctx, ['tools'])).rejects.toThrow('scopeHost: service "tools" not available') + }) }) diff --git a/packages/core/system-prompt/tests/scoped.spec.ts b/packages/core/system-prompt/tests/scoped.spec.ts index 9c448bc2ac..99e6b1c113 100644 --- a/packages/core/system-prompt/tests/scoped.spec.ts +++ b/packages/core/system-prompt/tests/scoped.spec.ts @@ -100,6 +100,19 @@ describe('scoped tool providers and toolOrder × restriction', () => { expect(global.tools.map(t => t.name)).toEqual(['global_tool']) }) + it('disposing a scoped tool provider empties its layer without residue', async () => { + const ctx = await mount() + const scope = await mintScope(ctx, 'child') + const dispose = scope.ctx.systemPrompt.tools(() => ({ schemas: [schema('scoped_tool')] })) + dispose() + const after = await ctx.systemPrompt.assemble({ scope: scopeKeyOf(scope) }) + expect(after.tools.map(t => t.name)).toEqual([]) + // Re-registering through the same scope starts a fresh layer. + scope.ctx.systemPrompt.tools(() => ({ schemas: [schema('again')] })) + const again = await ctx.systemPrompt.assemble({ scope: scopeKeyOf(scope) }) + expect(again.tools.map(t => t.name)).toEqual(['again']) + }) + it('a toolOrder entry restricted away for a scope is a normal absence, while a typo still throws', async () => { const ctx = await mount({ toolOrder: ['bash', TOOL_ORDER_REST] }) // A provider mimicking the registry's restriction split: bash exists diff --git a/packages/core/tools/tests/scoped.spec.ts b/packages/core/tools/tests/scoped.spec.ts index 027b5798de..d7c0f020d0 100644 --- a/packages/core/tools/tests/scoped.spec.ts +++ b/packages/core/tools/tests/scoped.spec.ts @@ -148,6 +148,7 @@ describe('restrict()', () => { expect(() => ctx.tools.restrict({ deny: ['real'] })).toThrow(/requires a scoped context/) expect(() => scope.ctx.tools.restrict({})).toThrow(/no-op/) expect(() => scope.ctx.tools.restrict({ allow: ['reall'] })).toThrow(/unknown tool "reall"; known tools for this scope: real/) + expect(() => scope.ctx.tools.restrict({ deny: ['ghost', 'wraith'] })).toThrow(/unknown tools "ghost", "wraith"/) }) }) diff --git a/packages/subagent/subagent-inprocess/src/index.ts b/packages/subagent/subagent-inprocess/src/index.ts index 889a8afb5d..cd0202f1bb 100644 --- a/packages/subagent/subagent-inprocess/src/index.ts +++ b/packages/subagent/subagent-inprocess/src/index.ts @@ -203,6 +203,8 @@ export function startInProcessRun( try { unlink = request.parent.ctx.effect(() => () => handle.dispose()) } catch (error: unknown) { + // Fire-and-forget: start() must rethrow synchronously; the child's + // teardown (stop → unregister → detach) reaches quiescence on its own. void handle.dispose() throw error } diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts index 9d8b4cb70b..158d08ce1f 100644 --- a/packages/subagent/subagent-inprocess/src/structured.ts +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -184,6 +184,9 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut if (decision.kind === 'accept') captured = { value: staged.value } return decision } finally { + /* v8 ignore next -- defensive false branch: a concurrent re-stage + * would need a second capture call INSIDE the first's post-execute + * chain */ if (pending === staged) pending = undefined } }, { prepend: true }) diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index 3d676c3848..c05310d70a 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -489,4 +489,45 @@ describe('in-process structured output', () => { expect(result.isError).toBe(true) expect(result.error?.code).toBe('UNKNOWN_TOOL') }) + + it('drops a stale stage from a short-circuited chain: a later call never promotes it (call-keyed commit)', async () => { + const { ctx, parent } = await setup([ + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 1 }), + ]) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + const child = ctx.agents.get(run.id)! + // An OUTER post-execute listener (registered after attach, prepend ⇒ + // outermost) that BLOCKS the first capture WITHOUT delegating: the commit + // listener never runs for c1, so its staged value would linger. + let blocks = 1 + ctx.on('tools/post-execute', (exec, _result, next) => { + if (exec.name === STRUCTURED_OUTPUT_TOOL && blocks > 0) { + blocks -= 1 + return Promise.resolve({ kind: 'block' as const, feedback: [{ type: 'text' as const, text: 'rejected' }] }) + } + return next() + }, { prepend: true }) + const result = await run.result + // The blocked capture must NOT surface as structured success… + expect(result.stopReason).toBe('error') + expect(result.structured).toBeUndefined() + // …and a LATER invalid call (its own body staged nothing) must not + // resurrect c1's orphaned value: drive the pipeline directly. + const invalid = await ctx.tools.execute({ + callId: 'c2' as never, + name: STRUCTURED_OUTPUT_TOOL, + arguments: { answer: 'not-a-number' }, + agent: child, + }) + expect(invalid.isError).toBe(true) + // A fresh valid call still captures ITS OWN value. + const valid = await ctx.tools.execute({ + callId: 'c3' as never, + name: STRUCTURED_OUTPUT_TOOL, + arguments: { answer: 9 }, + agent: child, + }) + expect(valid.isError).toBeFalsy() + await run.dispose() + }) }) diff --git a/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts b/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts index 0d3bc57d26..88f02070a6 100644 --- a/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts +++ b/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts @@ -1,4 +1,4 @@ -import { describe, expect, it } from 'vitest' +import { describe, expect, it, vi } from 'vitest' import { Context } from 'cordis' import Loader from '@cordisjs/plugin-loader' import LlmService from '@deepseek-ai/dsh-llm' @@ -377,4 +377,23 @@ describe('dsh-subagent-spawn', () => { expect(ctx.agents.list().length).toBe(before) }) }) + + it('spawning from a DISPOSING parent fails loud with no orphaned child (INACTIVE_EFFECT teaching error)', async () => { + const { ctx } = await setup([]) + // A handle-owned parent we can dispose (config agents dispose with the loop fiber). + const parentHandle = ctx.agents.create({ + agentId: AgentId('doomed-parent'), + sessionId: SessionId('doomed-s'), + agentOptions: { model: 'mock' }, + }) + await parentHandle.dispose() + const before = ctx.agents.list().length + expect(() => ctx.subagents.start('spawn', { + prompt: [{ type: 'text', text: 'do X' }], + parent: parentHandle.agent, + })).toThrow(/inactive context/) + // The freshly created child's disposal was initiated before the rethrow + // (fire-and-forget — start() throws synchronously); quiescence follows. + await vi.waitFor(() => { expect(ctx.agents.list().length).toBe(before) }) + }) }) diff --git a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts index 90f3e0f931..9510df53ab 100644 --- a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts +++ b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts @@ -451,4 +451,37 @@ describe('dsh-tool-subagent', () => { expect(typeof unwrapped.apply).toBe('function') expect(unwrapped.Config).toBeDefined() }) + + it('passes persona/toolFilter/maxDepth config through to the start request', async () => { + let seen: { persona?: string; toolFilter?: unknown; maxDepth?: number } | undefined + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(SubagentService) + ctx.subagents.registerProvider({ + name: 'capture2', + capabilities: { outputSchema: false, depthLimit: true, toolFilter: true, persona: true }, + inheritsParentContext: false, + start: (request) => { + seen = request + return { + id: AgentId('capture2-child'), + result: Promise.resolve({ output: [{ type: 'text', text: 'ok' }], stopReason: 'completed' as const }), + cancel() {}, + dispose: async () => {}, + } + }, + }) + await ctx.plugin(tool, { + provider: 'capture2', + persona: 'You are the child.', + toolFilter: { deny: ['subagent'] }, + maxDepth: 2, + }) + + await callSubagent(ctx, { description: 'd', prompt: 'p' }) + expect(seen?.persona).toBe('You are the child.') + expect(seen?.toolFilter).toMatchObject({ deny: ['subagent'] }) + expect(seen?.maxDepth).toBe(2) + }) }) diff --git a/packages/support/invariants/tests/invariants.spec.ts b/packages/support/invariants/tests/invariants.spec.ts index 98e5d675fa..9bd796955d 100644 --- a/packages/support/invariants/tests/invariants.spec.ts +++ b/packages/support/invariants/tests/invariants.spec.ts @@ -3,7 +3,7 @@ import { Context } from 'cordis' import { scopeTarget } from '@deepseek-ai/dsh-scope' import { CallId } from '@deepseek-ai/dsh-llm' import type { Agent } from '@deepseek-ai/dsh-agent' -import SessionStore, { SessionId } from '@deepseek-ai/dsh-session' +import SessionStore, { Session, SessionId } from '@deepseek-ai/dsh-session' import * as Invariants from '@deepseek-ai/dsh-invariants' import { InvariantError } from '@deepseek-ai/dsh-invariants' @@ -797,6 +797,37 @@ describe('scoped-dispatch invariants', () => { .toThrow(/dispatched without a scope carrier/) }) + it('accepts a matching carrier and rejects a mismatched one for EVERY agent-subject event', async () => { + const ctx = await scopedCtx() + // Real Session objects: the session-start tracker WeakSet-keys them. + const agent = { id: 'a1', session: new Session(SessionId('a1-s')) } as unknown as Agent + const other = { id: 'a2', session: new Session(SessionId('a2-s')) } as unknown as Agent + // One dispatch per table row keeps every subject extractor covered: the + // matching carrier passes, the foreign-keyed one throws. + const rows: [string, unknown[]][] = [ + ['agent/created', [agent]], + ['agent/disposed', [agent]], + ['agent/status', [agent, 'idle']], + ['agent/queued', [agent, [], { source: { kind: 'user' }, steering: false }]], + ['agent/session-start', [agent, 'startup']], + ['agent/pre-step', [agent, 1, 1, '', new AbortController().signal]], + ['agent/prompt-submit', [agent, [], { kind: 'user' }, () => Promise.resolve({ kind: 'allow' })]], + ['agent/request', [agent, 1, 1, { model: 'm' }, () => Promise.resolve({ model: 'm' })]], + ['agent/step-result', [agent, 1, 1, { role: 'assistant', content: [] }, () => Promise.resolve({ role: 'assistant', content: [] })]], + ['agent/turn-continuation', [agent, 1, { action: 'stop' }, () => Promise.resolve({ action: 'stop' })]], + ['agent/error', [agent, 1, 0, new Error('x')]], + ['tools/pre-execute', [{ callId: 'c', name: 't', arguments: {}, agent }, () => Promise.resolve({ kind: 'allow' })]], + ['tools/post-execute', [{ callId: 'c', name: 't', arguments: {}, agent }, { callId: 'c', content: [], isError: false }, () => Promise.resolve({ kind: 'accept' })]], + ] + for (const [event, args] of rows) { + const subject = event.startsWith('tools/') ? agent : agent + expect(() => { (ctx.emit as (...a: unknown[]) => void)(scopeTarget(agent, subject), event, ...args) }, + `${event} with matching carrier`).not.toThrow() + expect(() => { (ctx.emit as (...a: unknown[]) => void)(scopeTarget(agent, other), event, ...args) }, + `${event} with foreign carrier`).toThrow(/DIFFERENT subject/) + } + }) + it('rejects a carrier keyed to a different subject than the arguments name', async () => { const ctx = await scopedCtx() const agent = { id: 'a1' } as unknown as Agent @@ -843,4 +874,18 @@ describe('scoped-dispatch invariants', () => { session.append('turn/start', { turn: 2, trigger: { kind: 'message', source: { kind: 'user' } } }) }).not.toThrow() }) + + it('marks sessions of agents that predate the plugin as started (HMR re-apply safety)', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const session = ctx.sessions.create(SessionId('pre-s')) + const agent = { id: 'pre', session } as unknown as Agent + ctx.root.provide('agents', { list: () => [agent] } as never) + // Invariants apply AFTER the agent exists: its ordering is unknowable, so + // a turn opening without an observed session-start must NOT false-positive. + await ctx.plugin(Invariants) + expect(() => { + session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) + }).not.toThrow() + }) }) From 513ba2716d0f8fa539a68adc04d890328d0f5b97 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 03:58:15 +0800 Subject: [PATCH 095/232] fix(agent-loop): one quiescence boundary across owner unload and handle.dispose MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cordis effect disposers are single-shot but not await-idempotent: when the owning fiber's unload invokes the raw wrapper first, a concurrent handle.dispose() got an immediate undefined and resolved before teardown finished — violating the driver's stated one-boundary contract (Codex implementation-review finding). The teardown chain's FIRST-yielded (so disposed-last) disposer now resolves a shared completion promise; the handle path awaits it after the wrapper, so tool-finally, parent-teardown, and owner-unload all observe the same fully-torn-down state. Regression test: owner unload begins first, concurrent handle.dispose still awaits unregistration + session detach. --- packages/core/agent-loop/src/index.ts | 15 ++++++++++++- .../agent-loop/tests/scope-lifecycle.spec.ts | 21 +++++++++++++++++++ 2 files changed, 35 insertions(+), 1 deletion(-) diff --git a/packages/core/agent-loop/src/index.ts b/packages/core/agent-loop/src/index.ts index 306f8707e2..47b2607881 100644 --- a/packages/core/agent-loop/src/index.ts +++ b/packages/core/agent-loop/src/index.ts @@ -303,7 +303,20 @@ export class AgentLoop extends Service implements AgentFactory { setup?: (agentCtx: Context) => void, ): { agent: ReactLoopAgent; disposeAgent: () => Promise } { const agent = new ReactLoopAgent(this.ctx, id, options, session) + // The ONE quiescence boundary every disposal path observes. Cordis effect + // disposers are single-shot but not await-idempotent: when the OWNING + // fiber's unload invokes the raw wrapper first, a concurrent + // `handle.dispose()` calling the same wrapper gets an immediate undefined + // (epoch already cleared) — so the handle path must await THIS promise, + // resolved by the teardown chain's final disposer, not the wrapper's + // return. Every disposer in the chain is deliberately infallible (stop() + // is infallible by contract, unregister/detach contain their listeners, + // the scope unwind is cordis-contained), so the final disposer always + // runs — a throwing link would skip the rest of a cordis dispose chain. + const { promise: torndown, resolve: markTorndown } = Promise.withResolvers() const dispose = this.ctx.effect(function* (this: AgentLoop) { + // First-yielded ⇒ disposed LAST: marks true teardown completion. + yield () => { markTorndown() } // Mint the agent's scope (key = the agent) and wire the two-phase // reference: the scope context tags registrations + filters dispatch; // the extend adds the `ctx.agent` DX own-property on top. The raw @@ -349,7 +362,7 @@ export class AgentLoop extends Service implements AgentFactory { // disposed later) is still attached. yield async () => { stop(); await agent.done } }.bind(this), 'agentLoop.start()') - return { agent, disposeAgent: async () => { await dispose() } } + return { agent, disposeAgent: async () => { await dispose(); await torndown } } } /** diff --git a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts index 28d1da192d..628339f1e5 100644 --- a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts +++ b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts @@ -169,4 +169,25 @@ describe('agent scope lifecycle', () => { agentEvents(ctx, agent).emit('agent/error', 2, 0, new Error('for a1')) expect(heard).toEqual(['a1:2']) }) + + it('handle.dispose() during owner unload still awaits true quiescence (shared boundary)', async () => { + const ctx = await harness() + let handle!: ReturnType + const owner = await ctx.plugin(Object.assign((inner: Context) => { + handle = inner.agents.create({ agentId: AgentId('h1'), sessionId: SessionId('h1-s'), agentOptions: { model: 'mock' } }) + }, { inject: ['agents'] })) + + const teardownDone: string[] = [] + ctx.on('agent/disposed', () => void teardownDone.push('unregistered')) + + // Owner unload begins FIRST (invokes the raw cordis wrapper)… + const unload = owner.dispose() + // …and a concurrent handle.dispose() must not resolve before the chain + // actually finished (the raw wrapper returns undefined on a repeat call). + await handle.dispose() + expect(teardownDone).toContain('unregistered') + expect(ctx.agents.get(AgentId('h1'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('h1-s'))).toBeUndefined() + await unload + }) }) From 9ff8720da5904b67d14642a6dc4fc6859d0de619 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 04:03:22 +0800 Subject: [PATCH 096/232] fix(tool-subagent): a partial toolFilter must not materialize an empty allow-list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ds-review-bot finding: forcing only the OUTER toolFilter key absent left the nested arrays materializing — a deny-only config gained allow: [], which means deny-EVERYTHING. The nested arrays now default to undefined too; an explicit allow: [] (grant-only children) still survives. Pinned by a capture-provider regression test. --- packages/subagent/tool-subagent/src/index.ts | 9 +++++-- .../tool-subagent/tests/tool-subagent.spec.ts | 26 +++++++++++++++++++ 2 files changed, 33 insertions(+), 2 deletions(-) diff --git a/packages/subagent/tool-subagent/src/index.ts b/packages/subagent/tool-subagent/src/index.ts index 7cf6f0ddbb..35c23c7fed 100644 --- a/packages/subagent/tool-subagent/src/index.ts +++ b/packages/subagent/tool-subagent/src/index.ts @@ -102,9 +102,14 @@ export const Config: z = z.object({ // deny-everything, silently. Force the omitted key to stay absent (the same // shape discipline as SystemPrompt's toolOrder); the cast is needed because // .default() expects the object type. + // The NESTED arrays get the same treatment as the object itself: a partial + // filter ({deny: […]}) must not materialize allow: [] beside it — an empty + // allow-list means deny-EVERYTHING, so the materialized default would turn + // a deny-one config into deny-all. An EXPLICIT allow: [] (grant-only + // children) survives, since only the omitted key defaults to undefined. toolFilter: z.object({ - allow: z.array(z.string()), - deny: z.array(z.string()), + allow: z.array(z.string()).default(undefined as unknown as string[]), + deny: z.array(z.string()).default(undefined as unknown as string[]), }).default(undefined as unknown as { allow: string[]; deny: string[] }), maxDepth: z.number(), }) diff --git a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts index 9510df53ab..5fd2ace838 100644 --- a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts +++ b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts @@ -484,4 +484,30 @@ describe('dsh-tool-subagent', () => { expect(seen?.toolFilter).toMatchObject({ deny: ['subagent'] }) expect(seen?.maxDepth).toBe(2) }) + + it('a partial toolFilter (deny only) does not materialize an empty allow-list (deny-all trap)', async () => { + let seen: { toolFilter?: { allow?: string[]; deny?: string[] } } | undefined + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(SubagentService) + ctx.subagents.registerProvider({ + name: 'capture3', + capabilities: { outputSchema: false, depthLimit: false, toolFilter: true, persona: false }, + inheritsParentContext: false, + start: (request) => { + seen = request + return { + id: AgentId('capture3-child'), + result: Promise.resolve({ output: [{ type: 'text', text: 'ok' }], stopReason: 'completed' as const }), + cancel() {}, + dispose: async () => {}, + } + }, + }) + await ctx.plugin(tool, { provider: 'capture3', toolFilter: { deny: ['subagent'] } }) + await callSubagent(ctx, { description: 'd', prompt: 'p' }) + expect(seen?.toolFilter).toEqual({ deny: ['subagent'] }) + expect(seen?.toolFilter).not.toHaveProperty('allow') + }) }) From 547aacee2fb0821cd602f1aba92ce97354d818e1 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 04:48:52 +0800 Subject: [PATCH 097/232] fix: honor the teardown order on owner unload; make the structured commit unconditional MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Adversarial-review findings (own reviewer agent), each verified and pinned: B1: agents.register() returned a wrapper lambda, so the factory composite's yield could not identity-nest it — on OWNER unload the unregistration (and agent/disposed) disposed as a concurrent sibling, firing mid-drain while the final turn was still closing (pre-existing on master; this branch's docs re-assert the order, so it must be true). register() now returns the EXACT cordis effect disposer (the Scope.rawDispose move); the composite nests it and owner unload runs stop/drain -> unregister -> detach -> scope like every other path. Regression test pins turn-end before disposed before detach on owner unload. B2: the structured two-phase commit could promote a stale stage when a later capture call REUSED the orphaned stage's call id with a body that never staged (denied downstream, or invalid args throwing pre-stage). The runtime's pre-execute listener now clears any stale stage unconditionally when a new capture call enters the pipeline — only a call's own body can stage for its commit; the call-id mismatch guard becomes a defensive second layer. Repro test: blocked capture then same-id invalid call. C1: an explicit empty toolFilter config now fails at plugin LOAD (the check is self-contained) instead of killing every delegation at child setup. C2: Scope.dispose/ScopeHost.dispose @returns state the single-shot repeat-call semantics honestly. --- .../agent-loop/tests/scope-lifecycle.spec.ts | 34 +++++++++++++++++ packages/core/agent/src/index.ts | 15 +++++--- packages/core/scope/src/index.ts | 10 ++++- .../subagent-inprocess/src/structured.ts | 14 +++++-- .../tests/structured.spec.ts | 38 +++++++++++++++++++ packages/subagent/tool-subagent/src/index.ts | 6 +++ .../tool-subagent/tests/tool-subagent.spec.ts | 15 ++++++++ 7 files changed, 122 insertions(+), 10 deletions(-) diff --git a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts index 628339f1e5..7a45898b8e 100644 --- a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts +++ b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts @@ -170,6 +170,40 @@ describe('agent scope lifecycle', () => { expect(heard).toEqual(['a1:2']) }) + it('owner unload honors the documented teardown order: unregistration AFTER the drain, before detach', async () => { + const ctx = await harness() + let handle!: ReturnType + const owner = await ctx.plugin(Object.assign((inner: Context) => { + handle = inner.agents.create({ agentId: AgentId('o1'), sessionId: SessionId('o1-s'), agentOptions: { model: 'mock' } }) + }, { inject: ['agents'] })) + const { agent } = handle + + const order: string[] = [] + ctx.on('session/event', (_s, event) => { + if (event.type === 'turn/end') order.push('turn-end') + }) + ctx.on('agent/disposed', () => { + order.push(`disposed(listed=${ctx.agents.get(AgentId('o1')) !== undefined})`) + order.push(`session-still-stored=${ctx.sessions.get(SessionId('o1-s')) !== undefined}`) + }) + + // Open a turn so the drain has real work: the loop must finish it BEFORE + // the registry entry goes away (the agent/disposed contract: "its fiber + // and any in-flight turn have been torn down"). Wait for the turn to be + // OPEN in the log — a dispose landing in the pre-step window would drop + // the queued prompt without ever opening a turn. + const turnOpen = new Promise((resolve) => { + const off = ctx.on('session/event', (_s, event) => { + if (event.type === 'turn/start') { off(); resolve() } + }) + }) + agent.send(text('work')) + await turnOpen + await owner.dispose() + expect(order).toEqual(['turn-end', 'disposed(listed=false)', 'session-still-stored=true']) + expect(ctx.sessions.get(SessionId('o1-s'))).toBeUndefined() + }) + it('handle.dispose() during owner unload still awaits true quiescence (shared boundary)', async () => { const ctx = await harness() let handle!: ReturnType diff --git a/packages/core/agent/src/index.ts b/packages/core/agent/src/index.ts index b9c9e6f0df..3821acd442 100644 --- a/packages/core/agent/src/index.ts +++ b/packages/core/agent/src/index.ts @@ -208,9 +208,16 @@ export class AgentRegistry extends Service { * (calling through `agent.ctx` scopes EFFECTS; dispatch scoping always * requires passing the carrier). Returns the disposer. * @param agent - the already-constructed agent to record in the store. - * @returns the disposer that removes the agent and emits `agent/disposed`. + * @returns the EXACT Cordis effect disposer (single-shot; a repeat call + * returns undefined without awaiting an in-flight teardown). Exact + * identity is load-bearing: a composite (generator) effect that owns a + * teardown ORDER — the agent factory's lifecycle chain — must yield THIS + * function so Cordis nests the unregistration at that yield position; + * yielding a wrapper would leave it disposing as a concurrent sibling on + * owner unload, unregistering the agent (and emitting `agent/disposed`) + * while its final turn is still draining. */ - register(agent: Agent): () => void { + register(agent: Agent): () => Promise | void { const dispose = this.ctx.effect(function* (this: AgentRegistry) { if (this.store.has(agent.id)) { throw new Error(`agent "${agent.id}" is already registered`) @@ -242,9 +249,7 @@ export class AgentRegistry extends Service { } this.ctx.emit(scopeTarget(agent, agent), 'agent/created', agent) }.bind(this), 'agents.register()') - // ctx.effect's disposer returns Promise; our disposer API is - // synchronous fire-and-forget — discard the (always-resolved) promise. - return () => void dispose() + return dispose } /** diff --git a/packages/core/scope/src/index.ts b/packages/core/scope/src/index.ts index 6b40eff05d..9c4fd0019e 100644 --- a/packages/core/scope/src/index.ts +++ b/packages/core/scope/src/index.ts @@ -83,7 +83,12 @@ export interface Scope { * returns undefined the second time; this wrapper Promise-normalizes it). * After disposal the scoped context is inert — a further registration * through it throws Cordis's INACTIVE_EFFECT. - * @returns resolves when every registration's disposer has settled. + * @returns for the call that initiates teardown: resolves when every + * registration's disposer has settled. A repeat/racing call resolves + * immediately WITHOUT awaiting the in-flight teardown (the underlying + * Cordis disposer is single-shot) — a caller needing a shared quiescence + * boundary across racing disposers keeps its own completion promise (the + * agent factory's pattern). */ dispose(): Promise } @@ -250,7 +255,8 @@ export interface ScopeHost { mint(key: ScopeKey): Scope /** * Dispose the host fiber and with it every scope minted through it. - * @returns resolves when all collected disposers have settled. + * @returns resolves when all collected disposers have settled (first call; + * a repeat call resolves immediately — single-shot, like Scope.dispose). */ dispose(): Promise } diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts index 158d08ce1f..9a00c62029 100644 --- a/packages/subagent/subagent-inprocess/src/structured.ts +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -159,6 +159,13 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut reason: `structured output already recorded: the run is complete, so \`${exec.name}\` is not executed`, }) } + // A NEW capture call invalidates any stale stage UNCONDITIONALLY, before + // dispatch: only THIS call's own body may stage for this call's commit. + // Without this, a stale entry orphaned by an outer short-circuited chain + // could be promoted by a later call REUSING the same call id whose body + // never staged (pre-execute-denied downstream, or invalid args throwing + // before the stage) — reporting success for a value the model saw fail. + if (exec.name === STRUCTURED_OUTPUT_TOOL) pending = undefined return next() }, { prepend: true }) @@ -171,13 +178,14 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut this: unknown, exec: ToolExecution, _result: ToolExecutionResult, next: () => Promise, ): Promise { if (exec.name !== STRUCTURED_OUTPUT_TOOL || pending === undefined) return next() + /* v8 ignore start -- defensive second layer: the pre-execute clear above + * already drops every stale stage before a new capture call dispatches, + * so a call-id mismatch cannot be reached through the tool pipeline */ if (pending.callId !== exec.callId) { - // A stale stage from a different call: an outer listener short-circuited - // that call's post-execute chain past this commit, so its verdict never - // reached us and the value must never be promoted — drop it. pending = undefined return next() } + /* v8 ignore stop */ const staged = pending try { const decision = await next() diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index c05310d70a..479bce58b9 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -530,4 +530,42 @@ describe('in-process structured output', () => { expect(valid.isError).toBeFalsy() await run.dispose() }) + + it('a later capture call REUSING a stale stage\'s call id never promotes it (unconditional commit safety)', async () => { + const { ctx, parent } = await setup([ + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 1 }), + ]) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + const child = ctx.agents.get(run.id)! + // Orphan a stage: an outer short-circuiting post-execute BLOCK on the + // first capture (its chain never reaches the commit listener). + let blocks = 1 + ctx.on('tools/post-execute', (exec, _result, next) => { + if (exec.name === STRUCTURED_OUTPUT_TOOL && blocks > 0) { + blocks -= 1 + return Promise.resolve({ kind: 'block' as const, feedback: [{ type: 'text' as const, text: 'rejected' }] }) + } + return next() + }, { prepend: true }) + await run.result + // A SECOND capture call with the SAME call id whose body never stages + // (invalid args throw before the stage): the stale value must not ride + // its acceptance. + const reused = await ctx.tools.execute({ + callId: 'c1' as never, + name: STRUCTURED_OUTPUT_TOOL, + arguments: { answer: 'not-a-number' }, + agent: child, + }) + expect(reused.isError).toBe(true) + // Nothing was ever committed: a fresh valid call is still required. + const valid = await ctx.tools.execute({ + callId: 'c1' as never, + name: STRUCTURED_OUTPUT_TOOL, + arguments: { answer: 5 }, + agent: child, + }) + expect(valid.isError).toBeFalsy() + await run.dispose() + }) }) diff --git a/packages/subagent/tool-subagent/src/index.ts b/packages/subagent/tool-subagent/src/index.ts index 35c23c7fed..f677076d3f 100644 --- a/packages/subagent/tool-subagent/src/index.ts +++ b/packages/subagent/tool-subagent/src/index.ts @@ -184,6 +184,12 @@ export function providerWording(inherits: boolean): { description: string; promp } export function apply(ctx: Context, config: Config): void { + // Misconfiguration fails loud AT LOAD (the check is self-contained): an + // explicit `toolFilter: {}` would otherwise pass the capability gate and + // kill every delegation later, in the child-setup `restrict({})` throw. + if (config.toolFilter !== undefined && config.toolFilter.allow === undefined && config.toolFilter.deny === undefined) { + throw new Error('tool-subagent: `toolFilter` is configured but names neither `allow` nor `deny` — remove the key or fill the filter') + } // The tool MIRRORS its provider's lifecycle instead of assuming load order: // the cordis Loader starts sibling entries concurrently, so "backend listed // first in cordis.yml" does not guarantee "provider registered first", and diff --git a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts index 5fd2ace838..da560350e4 100644 --- a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts +++ b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts @@ -510,4 +510,19 @@ describe('dsh-tool-subagent', () => { expect(seen?.toolFilter).toEqual({ deny: ['subagent'] }) expect(seen?.toolFilter).not.toHaveProperty('allow') }) + + it('an explicit empty toolFilter fails at plugin load, not at first delegation', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(SubagentService) + ctx.subagents.registerProvider({ + name: 'p', + capabilities: { outputSchema: false, depthLimit: false, toolFilter: true, persona: false }, + inheritsParentContext: false, + start: () => { throw new Error('unreachable') }, + }) + const fiber = ctx.plugin(tool, { provider: 'p', toolFilter: {} }) + await expect(fiber).rejects.toThrow(/names neither `allow` nor `deny`/) + }) }) From d5d5e3fa3c3aace1dd6a64c3619d67eec12f449a Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 04:53:58 +0800 Subject: [PATCH 098/232] docs: regenerate services catalog for the register() disposer signature --- docs/cordis-catalog/services.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 42336012de..3dc09d3fa3 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -31,7 +31,7 @@ Agent registry (`ctx.agents`): tracks live agents so UI, hook, and orchestrator setFactory(factory: AgentFactory): () => void create(options: CreateAgentOptions): AgentHandle async resume(options: ResumeAgentOptions): Promise -register(agent: Agent): () => void +register(agent: Agent): () => Promise | void get(id: AgentId): Agent | undefined list(): Agent[] ``` From db6aed0459aee0b48dead730448a74dade805a95 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 05:03:44 +0800 Subject: [PATCH 099/232] fix(subagent): key the structured stage by execution identity, not call id MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Codex confirmation-round finding: an OUTERMOST prepend pre-execute deny skips the runtime's own pre-execute clear, and the denied call still reaches post-execute — so a reused adapter-minted call id could promote an orphaned stage on the default accept path. The stage is now keyed by the ToolExecution OBJECT identity, the one token that provably ties a stage to one pipeline trip: only the execution whose own body staged can commit, whatever any call id says. The pre-execute clear is gone (one mechanism); the commit's mismatch drop is now the reachable primary guard. Repro test: orphaned stage + outer pre-execute deny with the same call id never promotes; a fresh valid call still captures. --- .../subagent-inprocess/src/structured.ts | 53 ++++++++++--------- .../tests/structured.spec.ts | 45 ++++++++++++++++ 2 files changed, 73 insertions(+), 25 deletions(-) diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts index 9a00c62029..d42a9b62ee 100644 --- a/packages/subagent/subagent-inprocess/src/structured.ts +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -31,19 +31,21 @@ * lists `structured_output` before further tool calls cannot run side * effects after the final answer was accepted. * - `tools/post-execute` (prepend, scoped): the capture COMMIT. The tool body - * only STAGES the validated value, KEYED BY CALL ID; it becomes the run's - * captured result only when the final post-execute decision accepts THAT - * call. Call-keyed staging closes a stale-stage hole: an outer - * short-circuiting post-execute listener can orphan a staged value, and an - * un-keyed commit would then promote it on a LATER call's acceptance — - * reporting success for a value the model saw fail. + * only STAGES the validated value, KEYED BY THE EXECUTION OBJECT'S + * IDENTITY; it becomes the run's captured result only when the final + * post-execute decision accepts THAT SAME pipeline trip. Execution-keyed + * staging closes the stale-stage hole unconditionally: an outer + * short-circuiting listener (post-execute block, or a pre-execute deny + * whose call never dispatched) can orphan a staged value, and neither a + * later call nor one REUSING the same adapter-minted call id can ever + * promote it — only the execution whose own body staged can commit. * * @module @deepseek-ai/dsh-subagent-inprocess/structured */ import type { Context } from 'cordis' import type { Agent, ContinuationDecision } from '@deepseek-ai/dsh-agent' -import type { CallId, ContentBlock, ToolSchema } from '@deepseek-ai/dsh-llm' +import type { ContentBlock, ToolSchema } from '@deepseek-ai/dsh-llm' import type { AssembleContext, PromptAssembly } from '@deepseek-ai/dsh-system-prompt' import type { PostToolDecision, PreToolDecision, ToolExecution, ToolExecutionResult } from '@deepseek-ai/dsh-tools' import { ToolArgsError, validateStructuredValue, type StructuredOutputSchema } from '@deepseek-ai/dsh-tools' @@ -83,8 +85,15 @@ export interface StructuredAttachment { * @returns the attachment handle (read `captured()` after the child settles). */ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOutputSchema): StructuredAttachment { - /** A validated value staged by the capture tool body, awaiting ITS OWN call's post-execute verdict. */ - let pending: { callId: CallId; value: unknown } | undefined + /** + * A validated value staged by the capture tool body, awaiting ITS OWN + * call's post-execute verdict — keyed by the {@link ToolExecution} OBJECT + * identity, the one token that provably ties a stage to one trip through + * the pipeline. A call id cannot key this: ids are adapter-minted and may + * repeat across steps, and a denied/failed later call REUSING an orphaned + * stage's id must never promote it. + */ + let pending: { exec: ToolExecution; value: unknown } | undefined let captured: { value: unknown } | undefined const schemaEntry: ToolSchema = { @@ -104,10 +113,10 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut // ToolArgsError → isError result with INVALID_ARGS: the model retries // within the same turn, exactly like a schema-validated defineTool call. if (violations.length > 0) throw new ToolArgsError(violations) - // Two-phase commit, KEYED BY THIS CALL: the body only stages; the - // post-execute listener promotes exactly this call's entry when the - // final decision accepts it. - pending = { callId: exec.callId, value: args } + // Two-phase commit, KEYED BY THIS EXECUTION: the body only stages; the + // post-execute listener promotes exactly this pipeline trip's entry + // when the final decision accepts it. + pending = { exec, value: args } return Promise.resolve([{ type: 'text', text: 'Structured output recorded.' }]) }, }) @@ -159,13 +168,6 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut reason: `structured output already recorded: the run is complete, so \`${exec.name}\` is not executed`, }) } - // A NEW capture call invalidates any stale stage UNCONDITIONALLY, before - // dispatch: only THIS call's own body may stage for this call's commit. - // Without this, a stale entry orphaned by an outer short-circuited chain - // could be promoted by a later call REUSING the same call id whose body - // never staged (pre-execute-denied downstream, or invalid args throwing - // before the stage) — reporting success for a value the model saw fail. - if (exec.name === STRUCTURED_OUTPUT_TOOL) pending = undefined return next() }, { prepend: true }) @@ -178,14 +180,15 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut this: unknown, exec: ToolExecution, _result: ToolExecutionResult, next: () => Promise, ): Promise { if (exec.name !== STRUCTURED_OUTPUT_TOOL || pending === undefined) return next() - /* v8 ignore start -- defensive second layer: the pre-execute clear above - * already drops every stale stage before a new capture call dispatches, - * so a call-id mismatch cannot be reached through the tool pipeline */ - if (pending.callId !== exec.callId) { + if (pending.exec !== exec) { + // A stale stage from a DIFFERENT pipeline trip: its own chain was + // short-circuited past this commit (an outer post-execute block, or an + // outer pre-execute deny whose call never dispatched), so its verdict + // never reached us. Whatever the current call's id, the orphan must + // never ride its acceptance — drop it. pending = undefined return next() } - /* v8 ignore stop */ const staged = pending try { const decision = await next() diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index 479bce58b9..3c2fed8351 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -568,4 +568,49 @@ describe('in-process structured output', () => { expect(valid.isError).toBeFalsy() await run.dispose() }) + + it('an outer pre-execute deny with call-id reuse cannot promote an orphaned stage either', async () => { + const { ctx, parent } = await setup([ + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 1 }), + ]) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + const child = ctx.agents.get(run.id)! + // Orphan a stage via an outer post-execute BLOCK on the first capture. + let blocks = 1 + ctx.on('tools/post-execute', (exec, _result, next) => { + if (exec.name === STRUCTURED_OUTPUT_TOOL && blocks > 0) { + blocks -= 1 + return Promise.resolve({ kind: 'block' as const, feedback: [{ type: 'text' as const, text: 'rejected' }] }) + } + return next() + }, { prepend: true }) + await run.result + // An OUTERMOST prepend pre-execute deny: the structured runtime's own + // pre-execute never runs for this call, and the denied call still goes + // through post-execute — with the SAME call id as the orphaned stage. + const offDeny = ctx.on('tools/pre-execute', (exec) => { + if (exec.name === STRUCTURED_OUTPUT_TOOL) { + return Promise.resolve({ kind: 'deny' as const, reason: 'outer veto' }) + } + return undefined as never + }, { prepend: true }) + const denied = await ctx.tools.execute({ + callId: 'c1' as never, + name: STRUCTURED_OUTPUT_TOOL, + arguments: { answer: 2 }, + agent: child, + }) + expect(denied.isError).toBe(true) + offDeny() + // The orphan was never promoted: a fresh valid call is still required + // (and succeeds, proving the runtime is not wedged). + const valid = await ctx.tools.execute({ + callId: 'c1' as never, + name: STRUCTURED_OUTPUT_TOOL, + arguments: { answer: 5 }, + agent: child, + }) + expect(valid.isError).toBeFalsy() + await run.dispose() + }) }) From e5093244fbcf3ca5fbabea482fdaeaab7f82ebd9 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 05:21:06 +0800 Subject: [PATCH 100/232] fix(subagent): declare the dsh-scope dependency; make the re-assert REPLACE conflicting entries MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ds-review-bot round-2 findings: (1) dsh-subagent's runtime import of @deepseek-ai/dsh-scope was undeclared in its manifest and tsconfig references (the root paths map masked it; the emitted package would import an undeclared dependency) — wired as peer+dev with the project reference, module graph regenerated. (2) The structured re-assert only ensured PRESENCE, so a downstream listener injecting a same-named entry with the wrong schema kept it model-visible while validateStructuredValue enforced the real one; it now REPLACES any same-named tool/section with the run's own. Pinned by a wrong-schema-injection test asserting exactly one entry carrying the run's schema. --- docs/module-graph.md | 3 ++- .../subagent-inprocess/src/structured.ts | 18 ++++++++----- .../tests/structured.spec.ts | 26 +++++++++++++++++++ packages/subagent/subagent/package.json | 2 ++ packages/subagent/subagent/tsconfig.json | 3 +++ pnpm-lock.yaml | 3 +++ 6 files changed, 48 insertions(+), 7 deletions(-) diff --git a/docs/module-graph.md b/docs/module-graph.md index a1a45e5b54..3f997e377a 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -145,6 +145,7 @@ flowchart TD pkg_tool_fs --> pkg_tools pkg_subagent --> pkg_agent pkg_subagent --> pkg_llm + pkg_subagent --> pkg_scope pkg_subagent --> pkg_tools pkg_tool_web --> pkg_llm pkg_tool_web --> pkg_system_prompt @@ -251,7 +252,7 @@ flowchart TD | [`agent-loop`](../packages/core/agent-loop) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-fs`](../packages/fs/tool-fs) | `fs` | [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | -| [`subagent`](../packages/subagent/subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`tools`](../packages/core/tools) | +| [`subagent`](../packages/subagent/subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`tools`](../packages/core/tools) | | [`tool-web`](../packages/web/tool-web) | `web` | [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`web`](../packages/web/web) | | [`tool-todo`](../packages/todo/tool-todo) | `todo` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`hooks-codex`](../packages/hooks/hooks-codex) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts index d42a9b62ee..51d1ea1b34 100644 --- a/packages/subagent/subagent-inprocess/src/structured.ts +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -135,12 +135,18 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut this: unknown, _assembly: PromptAssembly, _context: AssembleContext, next: () => Promise, ): Promise { const final = await next() - if (!final.tools.some(tool => tool.name === STRUCTURED_OUTPUT_TOOL)) { - final.tools = [...final.tools, { ...schemaEntry, parameters: structuredClone(schemaEntry.parameters) }] - } - if (!final.sections.some(section => section.name === `tool:${STRUCTURED_OUTPUT_TOOL}`)) { - final.sections = [...final.sections, { name: `tool:${STRUCTURED_OUTPUT_TOOL}`, order: 190, text: STRUCTURED_OUTPUT_INSTRUCTION }] - } + // REPLACE, not merely ensure-present: a downstream listener may have + // mutated or injected a same-named entry with the WRONG schema/text, and + // the model-visible demand must be exactly this run's own — the same + // schema validateStructuredValue enforces. + final.tools = [ + ...final.tools.filter(tool => tool.name !== STRUCTURED_OUTPUT_TOOL), + { ...schemaEntry, parameters: structuredClone(schemaEntry.parameters) }, + ] + final.sections = [ + ...final.sections.filter(section => section.name !== `tool:${STRUCTURED_OUTPUT_TOOL}`), + { name: `tool:${STRUCTURED_OUTPUT_TOOL}`, order: 190, text: STRUCTURED_OUTPUT_INSTRUCTION }, + ] return final }, { prepend: true }) diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index 3c2fed8351..3384fe4aa3 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -412,6 +412,32 @@ describe('in-process structured output', () => { await runB.dispose() }) + it('the re-assert REPLACES a conflicting injected schema, not merely ensures presence', async () => { + const { ctx, parent, adapter } = await setup([ + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 5 }), + ]) + // A global listener that INJECTS a wrong-schema structured_output entry: + // the child's re-assert must replace it with the run's own schema. + ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { + const replaced = await next() + return { + sections: replaced.sections, + tools: [ + ...replaced.tools.filter(tool => tool.name !== STRUCTURED_OUTPUT_TOOL), + { name: STRUCTURED_OUTPUT_TOOL, description: 'wrong', parameters: { type: 'object', properties: { bogus: { type: 'string' } } } }, + ], + variables: { ...replaced.variables }, + } + }) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + const result = await run.result + expect(result.structured).toEqual({ answer: 5 }) + const entries = adapter.requests[0]!.tools!.filter(tool => tool.name === STRUCTURED_OUTPUT_TOOL) + expect(entries).toHaveLength(1) + expect(entries[0]!.parameters).toEqual(SCHEMA) + await run.dispose() + }) + it('the re-assert wins against a downstream listener that REPLACES the assembly object', async () => { const { ctx, parent, adapter } = await setup([ toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 5 }), diff --git a/packages/subagent/subagent/package.json b/packages/subagent/subagent/package.json index be5baeb0e1..eb0dbf8da0 100644 --- a/packages/subagent/subagent/package.json +++ b/packages/subagent/subagent/package.json @@ -24,12 +24,14 @@ "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-scope": "^0.0.1", "@deepseek-ai/dsh-tools": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-scope": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", "cordis": "^4.0.0-rc.6" } diff --git a/packages/subagent/subagent/tsconfig.json b/packages/subagent/subagent/tsconfig.json index 0781a1129c..f93f929241 100644 --- a/packages/subagent/subagent/tsconfig.json +++ b/packages/subagent/subagent/tsconfig.json @@ -22,6 +22,9 @@ }, { "path": "../../core/tools" + }, + { + "path": "../../core/scope" } ] } diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 3ffc2719d9..196191201e 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -587,6 +587,9 @@ importers: '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm + '@deepseek-ai/dsh-scope': + specifier: workspace:^ + version: link:../../core/scope '@deepseek-ai/dsh-tools': specifier: workspace:^ version: link:../../core/tools From 8819c71b81d800f3f765f4a0102d409c35c8d656 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 06:06:17 +0800 Subject: [PATCH 101/232] docs: teach the graph generator the CHAINED fused-dispatch spelling ds-review-bot round-3 finding: agentEvents(ctx, agent).emit(...) has a call-expression receiver the generator's identifier check missed, silently dropping agent-loop as agent/session-start's producer. The generator now recognizes a call receiver whose callee is agentEvents; graph regenerated with the producer edge restored. --- docs/event-producer-consumer.md | 2 +- scripts/gen-doc-graphs.ts | 5 +++++ 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index f93e808694..5687ad15d8 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -14,7 +14,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:414`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:326`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | | `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:442`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:346`](../packages/core/agent/src/types.ts) | - | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`invariants`](../packages/support/invariants) | +| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:346`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`invariants`](../packages/support/invariants) | | `agent/status` | `emit` | [`packages/core/agent/src/types.ts:312`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:457`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | | `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:475`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 54f52ead18..f7e2ce9f4b 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -519,6 +519,11 @@ function collectEventRelations(): Map { } function isCordisContextReceiver(expr: ts.PropertyAccessExpression, sf: ts.SourceFile): boolean { + // The chained fused-dispatch spelling: `agentEvents(ctx, agent).emit(…)` — + // the receiver is a call expression, not an identifier. + if (ts.isCallExpression(expr.expression) && expr.expression.expression.getText(sf) === 'agentEvents') { + return true + } const target = expr.expression.getText(sf) if (target === 'ctx' || target === 'this.ctx') return true // Scoped-dispatch spellings (the agent-scoping seam): the loop's fused From 7ccf31a59b5227d66a95b2d52932d68b59e2b702 Mon Sep 17 00:00:00 2001 From: pku-xht Date: Thu, 9 Jul 2026 10:20:42 +0800 Subject: [PATCH 102/232] fix review finding: root-portable rm-failure injection in the config-dir test MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The best-effort-remove test provoked a real EACCES via a chmod-000 subtree, which only fails for unprivileged users — under root, recursive rm ignores permission bits, deleting the subtree: the existsSync assertion goes red and the swallow branch loses coverage, failing the per-file gate. The rejection is now injected deterministically at the node:fs/promises boundary (rm wrapped with a real-passthrough vi.fn; one test queues a single rejection), the fs-failure boundary being exactly the non-deterministic seam the testing policy sanctions mocking. Everything else in the suite stays on the real filesystem, and the swallow contract stays error-kind agnostic. --- packages/subagent/subagent-process/README.md | 2 +- .../tests/subagent-process.spec.ts | 39 +++++++++++-------- 2 files changed, 24 insertions(+), 17 deletions(-) diff --git a/packages/subagent/subagent-process/README.md b/packages/subagent/subagent-process/README.md index 597470f52a..e42bb4b611 100644 --- a/packages/subagent/subagent-process/README.md +++ b/packages/subagent/subagent-process/README.md @@ -37,4 +37,4 @@ A per-run isolated config directory for an external CLI child (the target of `CL ## Testing -`tests/subagent-process.spec.ts`: the env scrub and config-dir helpers run against the real process env and real filesystem (including an rm-failure path proving `remove()` never rejects); the exit waits and the dispose ladder run against a scriptable fake child, driving each escalation tier deterministically. The [ACP backend suite](../subagent-acp/README.md) exercises the same ladder against real subprocesses (EOF-cooperative, EOF-ignoring, and SIGTERM-trapping children) end to end. +`tests/subagent-process.spec.ts`: the env scrub and config-dir helpers run against the real process env and real filesystem (the rm-failure path injects its rejection at the fs boundary — a real recursive-rm failure is not portably provokable, and root ignores permission bits); the exit waits and the dispose ladder run against a scriptable fake child, driving each escalation tier deterministically. The [ACP backend suite](../subagent-acp/README.md) exercises the same ladder against real subprocesses (EOF-cooperative, EOF-ignoring, and SIGTERM-trapping children) end to end. diff --git a/packages/subagent/subagent-process/tests/subagent-process.spec.ts b/packages/subagent/subagent-process/tests/subagent-process.spec.ts index c4828d8498..24f2a3a97d 100644 --- a/packages/subagent/subagent-process/tests/subagent-process.spec.ts +++ b/packages/subagent/subagent-process/tests/subagent-process.spec.ts @@ -1,7 +1,7 @@ -import { describe, expect, it } from 'vitest' +import { describe, expect, it, vi } from 'vitest' import { EventEmitter } from 'node:events' import { existsSync } from 'node:fs' -import { chmod, mkdir, mkdtemp, rm, stat, writeFile } from 'node:fs/promises' +import { mkdtemp, rm, stat, writeFile } from 'node:fs/promises' import { tmpdir } from 'node:os' import { join } from 'node:path' import type { ChildProcess } from 'node:child_process' @@ -15,13 +15,24 @@ import { waitForExit, } from '../src/index.ts' +// `rm` is wrapped (real-passthrough by default) so ONE test can inject a +// rejection deterministically. A real recursive-rm failure is not portably +// provokable — permission tricks (a chmod-000 subtree) fail only for +// unprivileged users and are ignored by root — so this is the fs boundary +// the testing policy sanctions mocking; everything else stays the real fs. +vi.mock('node:fs/promises', async (importOriginal) => { + const actual = await importOriginal() + return { ...actual, rm: vi.fn(actual.rm) } +}) + /** * Unit tests for the shared out-of-process machinery. The env scrub and the * isolated-config-dir helpers run against the REAL process env and REAL - * filesystem; the exit waits and the dispose ladder run against a scriptable - * fake child so each escalation tier's timing is driven deterministically - * (the ACP backend's suite exercises the same ladder against real - * subprocesses end to end). + * filesystem (one exception: the rm-failure path injects its rejection at the + * mocked fs boundary, see above); the exit waits and the dispose ladder run + * against a scriptable fake child so each escalation tier's timing is driven + * deterministically (the ACP backend's suite exercises the same ladder + * against real subprocesses end to end). */ /** What fells a scripted {@link FakeChild}. */ @@ -287,20 +298,16 @@ describe('createIsolatedConfigDir', () => { expect(existsSync(missing)).toBe(false) }) - it('remove() is best-effort: an rm failure resolves instead of rejecting', async () => { + it('remove() is best-effort: an rm rejection resolves instead of rejecting', async () => { const dir = await createIsolatedConfigDir('dsh-subagent-process-locked-') - const locked = join(dir.path, 'locked') - await mkdir(locked) - await writeFile(join(locked, 'entry'), 'x') - // An unreadable, unwritable non-empty subdir makes recursive rm fail - // (EACCES on readdir/unlink) for a non-root user. - await chmod(locked, 0o000) try { + // The swallow contract is error-kind agnostic; EACCES stands in for the + // family (EBUSY, a vanished mount, …) that best-effort must absorb. + vi.mocked(rm).mockRejectedValueOnce(Object.assign(new Error('EACCES: permission denied'), { code: 'EACCES' })) await expect(dir.remove()).resolves.toBeUndefined() - // rm really did fail — the locked subtree is still there. - expect(existsSync(locked)).toBe(true) + // The injected rejection consumed the only rm call — nothing was deleted. + expect(existsSync(dir.path)).toBe(true) } finally { - await chmod(locked, 0o700) await rm(dir.path, { recursive: true, force: true }) } }) From 2471e2b2bb45d1f8f350571451feda04a4a8786d Mon Sep 17 00:00:00 2001 From: pku-xht Date: Thu, 9 Jul 2026 10:42:34 +0800 Subject: [PATCH 103/232] fix review finding: exitsWithin cleans up its listener and timer on both arms Each timed-out wait used to leave the once('exit') listener from its inner waitForExit attached to the child; the dispose ladder accumulates at most a couple, but in a shared library a caller polling exitsWithin in a loop would pile listeners onto one child (MaxListenersExceededWarning at 11) and retain their closures. The race now owns its wiring: the timeout arm removes the exit listener, the exit arm clears the (still unref'ed) grace timer, and an already-exited child short-circuits true without attaching anything. Tests pin listenerCount('exit') === 0 after every outcome. --- packages/subagent/subagent-process/README.md | 2 +- .../subagent/subagent-process/src/index.ts | 24 ++++++++++++++----- .../tests/subagent-process.spec.ts | 12 ++++++++++ 3 files changed, 31 insertions(+), 7 deletions(-) diff --git a/packages/subagent/subagent-process/README.md b/packages/subagent/subagent-process/README.md index e42bb4b611..e6c8e10a96 100644 --- a/packages/subagent/subagent-process/README.md +++ b/packages/subagent/subagent-process/README.md @@ -16,7 +16,7 @@ Spawn-failure capture: a promise that resolves (never rejects) with the child's ### `waitForExit(child)` / `exitsWithin(child, ms)` -Exit waits over a `ChildProcess`: resolve once the child exits by any code or signal (immediately if it is already gone), or race that against a timer (`true` = exited in time; the pending timer is `unref()`ed so a grace window never keeps the parent's event loop alive). +Exit waits over a `ChildProcess`: resolve once the child exits by any code or signal (immediately if it is already gone), or race that against a timer (`true` = exited in time). The race cleans up after itself on both outcomes — the pending timer is `unref()`ed and cleared on exit, the exit listener removed on timeout — so repeated calls (the dispose ladder's tiers, a poll loop) never accumulate listeners on the child. ### `disposeChildProcess(child, graces)` diff --git a/packages/subagent/subagent-process/src/index.ts b/packages/subagent/subagent-process/src/index.ts index b54681d3c7..219ed6b083 100644 --- a/packages/subagent/subagent-process/src/index.ts +++ b/packages/subagent/subagent-process/src/index.ts @@ -78,17 +78,29 @@ export function waitForExit(child: ChildProcess): Promise { } /** - * Race the child's exit against a timer. + * Race the child's exit against a timer. Neither outcome leaves anything + * behind on the child: the exit listener is removed on timeout and the timer + * is cleared on exit, so repeated calls (the dispose ladder's tiers, a poll + * loop) never accumulate listeners. * @param child - the child process to watch. * @param ms - the wait window in milliseconds. - * @returns `true` if the child exits within `ms`, `false` on timeout. + * @returns `true` if the child exits within `ms` (immediately if it is + * already gone), `false` on timeout. */ export function exitsWithin(child: ChildProcess, ms: number): Promise { - return Promise.race([ - waitForExit(child).then(() => true), + if (child.exitCode !== null || child.signalCode !== null) return Promise.resolve(true) + return new Promise((resolve) => { + const onExit = (): void => { + clearTimeout(timer) + resolve(true) + } // `.unref()` so a pending grace timer never keeps the parent's loop alive. - new Promise(resolve => setTimeout(() => { resolve(false) }, ms).unref()), - ]) + const timer = setTimeout(() => { + child.removeListener('exit', onExit) + resolve(false) + }, ms).unref() + child.once('exit', onExit) + }) } /** diff --git a/packages/subagent/subagent-process/tests/subagent-process.spec.ts b/packages/subagent/subagent-process/tests/subagent-process.spec.ts index 24f2a3a97d..d23f075284 100644 --- a/packages/subagent/subagent-process/tests/subagent-process.spec.ts +++ b/packages/subagent/subagent-process/tests/subagent-process.spec.ts @@ -181,15 +181,27 @@ describe('waitForExit / exitsWithin', () => { expect(fake.signalCode).toBe('SIGTERM') }) + it('exitsWithin resolves true immediately for an already-exited child (no listener attached)', async () => { + const fake = new FakeChild() + fake.exitCode = 0 + await expect(exitsWithin(asChild(fake), 1000)).resolves.toBe(true) + expect(fake.listenerCount('exit')).toBe(0) + }) + it('exitsWithin resolves true when the child exits inside the window', async () => { const fake = new FakeChild({ diesOn: 'SIGTERM', delayMs: 5 }) fake.kill('SIGTERM') await expect(exitsWithin(asChild(fake), 1000)).resolves.toBe(true) + // The once-listener fired and the grace timer was cleared — nothing lingers. + expect(fake.listenerCount('exit')).toBe(0) }) it('exitsWithin resolves false on timeout for a child that never exits', async () => { const fake = new FakeChild() // nothing short of SIGKILL fells it; no signal sent await expect(exitsWithin(asChild(fake), 20)).resolves.toBe(false) + // The timeout arm removed its exit listener: repeated waits (a poll loop, + // the ladder's tiers) never accumulate listeners on the same child. + expect(fake.listenerCount('exit')).toBe(0) }) }) From a11000030a14dd382548839894ba49b0568ab801 Mon Sep 17 00:00:00 2001 From: pku-xht Date: Thu, 9 Jul 2026 10:42:41 +0800 Subject: [PATCH 104/232] docs(subagent-acp): point the env-scrub section at its one home MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The scrub pattern and layering semantics live in the dsh-subagent-process README (the fact's home since the extraction); the ACP section restated them in full — two prose copies drift word by word until they disagree (the one-home-per-fact rule in docs/AGENTS.md). The section now links the library and keeps only the backend's own story: which credential enters via config.env and why. --- packages/subagent/subagent-acp/README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/packages/subagent/subagent-acp/README.md b/packages/subagent/subagent-acp/README.md index 81bf886067..2cc330aefd 100644 --- a/packages/subagent/subagent-acp/README.md +++ b/packages/subagent/subagent-acp/README.md @@ -57,7 +57,7 @@ A spawn/transport/RPC failure resolves `error` (or `aborted` if a cancel was req ## Environment scrub -Credential-shaped ambient vars (`/KEY|SECRET|TOKEN/i`) are NOT forwarded to the child by default — the parent harness's own secrets must not leak into a spawned process implicitly. The child's OWN credentials are supplied explicitly via `config.env`, layered AFTER the scrub, so an intended `DEEPSEEK_API_KEY` survives while an incidental `AWS_SECRET_ACCESS_KEY` does not. +The child env is built by [`buildChildEnv` from `@deepseek-ai/dsh-subagent-process`](../subagent-process/README.md) — the ambient env minus credential-shaped vars, with `config.env` layered on top after the scrub; the pattern and full semantics live there. For this backend that means the parent harness's own secrets never leak into the spawned agent implicitly, while the child's OWN `DEEPSEEK_API_KEY` is supplied deliberately via `config.env` and survives. ## Testing From 7db9a6c78039b0324acbc89a0df1679f975944fd Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Thu, 9 Jul 2026 11:20:17 +0800 Subject: [PATCH 105/232] fix review findings: document ask-user recommendation convention --- packages/ui/tool-ask-user/README.md | 2 +- packages/ui/tool-ask-user/src/index.ts | 2 +- .../tool-ask-user/tests/tool-ask-user.spec.ts | 31 +++++++++++++++++++ 3 files changed, 33 insertions(+), 2 deletions(-) diff --git a/packages/ui/tool-ask-user/README.md b/packages/ui/tool-ask-user/README.md index 11f35c5129..10d4a082ba 100644 --- a/packages/ui/tool-ask-user/README.md +++ b/packages/ui/tool-ask-user/README.md @@ -10,7 +10,7 @@ Model-facing `ask_user_question` tool over `ctx.userInteraction`. It lets the mo - `id` — required stable id on each question, echoed in the answer. - `question` — required question text for each question. - `header` — optional short heading. -- `options` — optional choices with `label` and `description`. +- `options` — optional choices with `label` and `description`. If recommending a choice, put it first and append `(Recommended)` to that label. - `multi_select` — whether that question may return more than one selected option. The tool calls `ctx.userInteraction.ask()` and returns JSON text shaped as `{ "answers": [{ "id": "...", "selected": ["..."], "custom": "..." }] }`. `selected` contains option labels; `custom` is present only for a free-form answer and overrides selected choices. diff --git a/packages/ui/tool-ask-user/src/index.ts b/packages/ui/tool-ask-user/src/index.ts index 6048f66808..2591b28ddd 100644 --- a/packages/ui/tool-ask-user/src/index.ts +++ b/packages/ui/tool-ask-user/src/index.ts @@ -36,7 +36,7 @@ export function apply(ctx: Context): void { }, options: { type: 'array', - description: 'Optional choices to show the user.', + description: 'Optional choices to show the user. If you recommend one, put it first and append "(Recommended)" to that label.', items: { type: 'object', properties: { diff --git a/packages/ui/tool-ask-user/tests/tool-ask-user.spec.ts b/packages/ui/tool-ask-user/tests/tool-ask-user.spec.ts index b0fdd2cc41..ceff7df388 100644 --- a/packages/ui/tool-ask-user/tests/tool-ask-user.spec.ts +++ b/packages/ui/tool-ask-user/tests/tool-ask-user.spec.ts @@ -99,6 +99,37 @@ describe('ask_user_question tool', () => { }]) }) + it('passes recommended option labels through without adding schema fields', async () => { + const ctx = await setup() + const seen: AskUserQuestionRequest[] = [] + ctx.userInteraction.registerProvider({ + async ask(request) { + seen.push(request) + return { answers: [{ id: 'pkg', selected: ['pnpm (Recommended)'] }] } + }, + }) + + await ctx.tools.execute({ + callId: CallId('ask-recommended'), + name: 'ask_user_question', + arguments: { + questions: [{ + id: 'pkg', + question: 'Which package manager should I use?', + options: [ + { label: 'pnpm (Recommended)' }, + { label: 'npm' }, + ], + }], + }, + }) + + expect(seen[0]?.questions[0]?.options).toEqual([ + { label: 'pnpm (Recommended)' }, + { label: 'npm' }, + ]) + }) + it('projects custom answers and multi-select choices', async () => { const ctx = await setup() ctx.userInteraction.registerProvider({ From 0009d1369330a71e252146afc2e2643fdde08848 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Thu, 9 Jul 2026 11:21:27 +0800 Subject: [PATCH 106/232] docs: refresh tool catalog --- docs/tool-catalog.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md index 1a6425b36d..5b9bebeaf7 100644 --- a/docs/tool-catalog.md +++ b/docs/tool-catalog.md @@ -52,7 +52,7 @@ Ask the user a concise question when you need confirmation, a choice, or missing }, "options": { "type": "array", - "description": "Optional choices to show the user.", + "description": "Optional choices to show the user. If you recommend one, put it first and append \"(Recommended)\" to that label.", "items": { "type": "object", "properties": { From 1be9baeb7bc9def875be4fe97397755d15685f27 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 11:44:10 +0800 Subject: [PATCH 107/232] =?UTF-8?q?feat:=20add=20demo:acp-code=20=E2=80=94?= =?UTF-8?q?=20the=20ACP=20demo=20in=20Code=20Mode?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Boots the acp-agent example through the existing code-mode.cordis.yml overlay (tool surface collapses to run_code + the generated TypeScript SDK, dispatching through the worker-thread runtime), mirroring how demo:code relates to demo:repl on the stdio side. The overlay header and both READMEs now name the demo as a consumer. Smoke: the server answers an ACP initialize handshake with a clean frame on stdout. --- examples/README.md | 2 +- examples/acp-agent/README.md | 3 ++- examples/acp-agent/code-mode.cordis.yml | 11 ++++++----- package.json | 1 + 4 files changed, 10 insertions(+), 7 deletions(-) diff --git a/examples/README.md b/examples/README.md index 1b9cdf080e..d42144ec9a 100644 --- a/examples/README.md +++ b/examples/README.md @@ -29,4 +29,4 @@ Run with: `pnpm run demo:code` (needs `DEEPSEEK_API_KEY`). See [code-agent/READM An agent demo exposed as an **Agent Client Protocol (ACP)** server over JSON-RPC stdio, via the [`@deepseek-ai/dsh-acp-agent`](../packages/ui/acp-agent) app — drive it from Zed or any other ACP client. Also the home of the keyless snapshot tests. -Run with: `pnpm run demo:acp` (needs `DEEPSEEK_API_KEY`). See [acp-agent/README.md](acp-agent/README.md) for the Zed setup and the snapshot-test design. +Run with: `pnpm run demo:acp` (needs `DEEPSEEK_API_KEY`); `pnpm run demo:acp-code` boots the same server in Code Mode via the `code-mode.cordis.yml` overlay. See [acp-agent/README.md](acp-agent/README.md) for the Zed setup and the snapshot-test design. diff --git a/examples/acp-agent/README.md b/examples/acp-agent/README.md index a1f6e818ab..b00604a056 100644 --- a/examples/acp-agent/README.md +++ b/examples/acp-agent/README.md @@ -4,9 +4,10 @@ The DeepSeek Harness SDK agent demo exposed as an **Agent Client Protocol (ACP)* ```sh pnpm run demo:acp # needs DEEPSEEK_API_KEY (repo-root .env or env) +pnpm run demo:acp-code # the same server in Code Mode: one wire tool, run_code ``` -This example is just a leaf `cordis.yml`: it loads the [`@deepseek-ai/dsh-acp-agent`](../../packages/ui/acp-agent) app (which bundles the [`@deepseek-ai/dsh-agent-core`](../../packages/core/agent-core) spine, JSONL session persistence, and the `@deepseek-ai/dsh-acp` bridge — with **no pre-created agents**, since ACP `session/new` creates them on demand), the swappable DeepSeek, bash, and filesystem backends, the model-facing `read`/`write`/`edit`/`subagent`/`subagent_fork`/`todo_write` tool entries, and the advisory `repeat-tool-guard` loop-hygiene plugin. The app package bakes in the no-stdout-logger cluster, so a leaf has no logger entry to get wrong by default — keeping stdout pure for JSON-RPC. +This example is just a leaf `cordis.yml`: it loads the [`@deepseek-ai/dsh-acp-agent`](../../packages/ui/acp-agent) app (which bundles the [`@deepseek-ai/dsh-agent-core`](../../packages/core/agent-core) spine, JSONL session persistence, and the `@deepseek-ai/dsh-acp` bridge — with **no pre-created agents**, since ACP `session/new` creates them on demand), the swappable DeepSeek, bash, and filesystem backends, the model-facing `read`/`write`/`edit`/`subagent`/`subagent_fork`/`todo_write` tool entries, and the advisory `repeat-tool-guard` loop-hygiene plugin. The app package bakes in the no-stdout-logger cluster, so a leaf has no logger entry to get wrong by default — keeping stdout pure for JSON-RPC. `demo:acp-code` boots the same tree through the [`code-mode.cordis.yml`](code-mode.cordis.yml) overlay — the tool surface collapses to `run_code` + the generated TypeScript SDK, dispatching through the worker-thread code runtime (see the [dsh-tools Code Mode section](../../packages/core/tools/README.md#code-mode)). ## stdout is the protocol diff --git a/examples/acp-agent/code-mode.cordis.yml b/examples/acp-agent/code-mode.cordis.yml index 244cad9209..0dfbd73d26 100644 --- a/examples/acp-agent/code-mode.cordis.yml +++ b/examples/acp-agent/code-mode.cordis.yml @@ -1,11 +1,12 @@ -# Code Mode RECORD overlay: the live acp-agent tree (./cordis.yml) with two +# Code Mode overlay: the live acp-agent tree (./cordis.yml) with two # load-time patches — the app entry's config gains `tools: { mode: code }` # (the registry offers exactly one wire tool, run_code, plus the generated # TypeScript SDK prompt section) and the worker-thread code runtime joins the -# tree as `ctx.codeRuntime`. The dsh-acp-agent bin boots this file when the -# snapshot harness records the code-mode scenarios; DSH_SNAPSHOT=replay swaps -# it for the sibling code-mode.cordis.snapshot.yml. A config patch REPLACES -# the entry's whole config, so the base entry's fields are restated verbatim. +# tree as `ctx.codeRuntime`. The dsh-acp-agent bin boots this file for +# `pnpm run demo:acp-code` and when the snapshot harness records the +# code-mode scenarios; DSH_SNAPSHOT=replay swaps it for the sibling +# code-mode.cordis.snapshot.yml. A config patch REPLACES the entry's whole +# config, so the base entry's fields are restated verbatim. - id: base name: '@cordisjs/plugin-include' config: diff --git a/package.json b/package.json index 4fce3dad57..4ed429f1d0 100644 --- a/package.json +++ b/package.json @@ -65,6 +65,7 @@ "demo:repl": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/coding-agent/cordis.yml", "demo:code": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/code-agent/cordis.yml", "demo:acp": "node --import tsx packages/ui/acp-agent/src/bin.ts examples/acp-agent/cordis.yml", + "demo:acp-code": "node --import tsx packages/ui/acp-agent/src/bin.ts examples/acp-agent/code-mode.cordis.yml", "postinstall": "node scripts/install-lefthook.mjs" }, "devDependencies": { From bc7da642d4cb4770a31571c042ece8bac0b5d6d3 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 12:16:37 +0800 Subject: [PATCH 108/232] feat: fold the Code Mode demos into demo:code-mode with a UI argument MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Code Mode is the point; the UI is just the surface it happens to wear. demo:code and demo:acp-code collapse into one dispatcher (scripts/demo-code-mode.mjs): `pnpm run demo:code-mode [repl|acp]` — repl (default) boots the stdio REPL over examples/code-agent, acp serves examples/acp-agent's code-mode overlay; each UI runs the exact node invocation its standalone script ran, and an unknown argument fails loud with usage. All nine references across READMEs, the RFC, the overlay header, and the keyless-smoke comment renamed. Smoked all three paths: usage exit 2, ACP initialize handshake, REPL boot + EOF. --- .../feature/2026-06-15-code-mode.md | 2 +- examples/README.md | 4 +-- examples/acp-agent/README.md | 4 +-- examples/acp-agent/code-mode.cordis.yml | 2 +- examples/code-agent/README.md | 2 +- .../code-agent/tests/keyless-smoke.e2e.ts | 2 +- package.json | 3 +-- packages/core/tools/README.md | 2 +- scripts/demo-code-mode.mjs | 27 +++++++++++++++++++ 9 files changed, 37 insertions(+), 11 deletions(-) create mode 100644 scripts/demo-code-mode.mjs diff --git a/docs/rfc/implemented/feature/2026-06-15-code-mode.md b/docs/rfc/implemented/feature/2026-06-15-code-mode.md index 2f643b432e..5ce9d784b9 100644 --- a/docs/rfc/implemented/feature/2026-06-15-code-mode.md +++ b/docs/rfc/implemented/feature/2026-06-15-code-mode.md @@ -90,7 +90,7 @@ What exists now: - **The seam**: `packages/code-runtime/` — `@deepseek-ai/dsh-code-runtime` (abstract `CodeRuntime`, the vocabulary above, `ctx.codeRuntime`) and `@deepseek-ai/dsh-code-runtime-worker` (the worker-thread backend, every cap a validated config field). Rows in the service map, capability-seams graph, config catalog, and cordis catalog. - **The registry surface**: `ToolRegistry`'s first config (`mode`), the mode-aware wire contribution, the `tools:sdk` section, `jsonSchemaToTs`/`renderToolsSdk` (exported), `run_code` + the dispatch bridge + `CodeRunFailedError`, and the `tool/code-dispatch` log event (declaration-merged into `SessionEventMap`, regenerated into the persistence catalog; `run_code` in the tool catalog). -- **The composed surface**: the `tools` config forwards through `agent-core` and both app packages (`stdio-agent`, `acp-agent`); `examples/code-agent` + `demo:code` run the worker runtime under `mode: 'code'`; the adding-a-tool cookbook states that a registered tool is reachable from programs for free, and the tool-pipeline doc shows sub-dispatches re-entering both waterfalls. +- **The composed surface**: the `tools` config forwards through `agent-core` and both app packages (`stdio-agent`, `acp-agent`); `examples/code-agent` + `demo:code-mode` run the worker runtime under `mode: 'code'`; the adding-a-tool cookbook states that a registered tool is reachable from programs for free, and the tool-pipeline doc shows sub-dispatches re-entering both waterfalls. - **Interactions inherited by deployments**: a `toolOrder` naming native tools rejects every assembly under `'code'` (update or drop the order config when switching modes); sub-call `additionalContext` is dropped by the bridge (a plural context channel is deferred until a real hook needs it through Code Mode); sub-dispatch stays serialized until tools can declare concurrency safety — the same metadata the native parallel-dispatch TODO waits on. ## Testing diff --git a/examples/README.md b/examples/README.md index d42144ec9a..3027d01f0a 100644 --- a/examples/README.md +++ b/examples/README.md @@ -23,10 +23,10 @@ Run with: `pnpm run demo:repl` (needs `DEEPSEEK_API_KEY` in the environment or a The coding agent flipped to **Code Mode**: the worker-thread code runtime is loaded and the tool registry runs `mode: code`, so the model gets exactly one wire tool — `run_code` — plus a generated TypeScript SDK section, and composes bash/read/write/edit/todo_write by writing a program whose output it curates. -Run with: `pnpm run demo:code` (needs `DEEPSEEK_API_KEY`). See [code-agent/README.md](code-agent/README.md) for what to try and how it differs from coding-agent. +Run with: `pnpm run demo:code-mode` (needs `DEEPSEEK_API_KEY`; the REPL is the default UI — `acp` as the argument serves the acp-agent example's Code Mode overlay instead). See [code-agent/README.md](code-agent/README.md) for what to try and how it differs from coding-agent. ## acp-agent An agent demo exposed as an **Agent Client Protocol (ACP)** server over JSON-RPC stdio, via the [`@deepseek-ai/dsh-acp-agent`](../packages/ui/acp-agent) app — drive it from Zed or any other ACP client. Also the home of the keyless snapshot tests. -Run with: `pnpm run demo:acp` (needs `DEEPSEEK_API_KEY`); `pnpm run demo:acp-code` boots the same server in Code Mode via the `code-mode.cordis.yml` overlay. See [acp-agent/README.md](acp-agent/README.md) for the Zed setup and the snapshot-test design. +Run with: `pnpm run demo:acp` (needs `DEEPSEEK_API_KEY`); `pnpm run demo:code-mode acp` boots the same server in Code Mode via the `code-mode.cordis.yml` overlay. See [acp-agent/README.md](acp-agent/README.md) for the Zed setup and the snapshot-test design. diff --git a/examples/acp-agent/README.md b/examples/acp-agent/README.md index b00604a056..5b3c936651 100644 --- a/examples/acp-agent/README.md +++ b/examples/acp-agent/README.md @@ -4,10 +4,10 @@ The DeepSeek Harness SDK agent demo exposed as an **Agent Client Protocol (ACP)* ```sh pnpm run demo:acp # needs DEEPSEEK_API_KEY (repo-root .env or env) -pnpm run demo:acp-code # the same server in Code Mode: one wire tool, run_code +pnpm run demo:code-mode acp # the same server in Code Mode: one wire tool, run_code ``` -This example is just a leaf `cordis.yml`: it loads the [`@deepseek-ai/dsh-acp-agent`](../../packages/ui/acp-agent) app (which bundles the [`@deepseek-ai/dsh-agent-core`](../../packages/core/agent-core) spine, JSONL session persistence, and the `@deepseek-ai/dsh-acp` bridge — with **no pre-created agents**, since ACP `session/new` creates them on demand), the swappable DeepSeek, bash, and filesystem backends, the model-facing `read`/`write`/`edit`/`subagent`/`subagent_fork`/`todo_write` tool entries, and the advisory `repeat-tool-guard` loop-hygiene plugin. The app package bakes in the no-stdout-logger cluster, so a leaf has no logger entry to get wrong by default — keeping stdout pure for JSON-RPC. `demo:acp-code` boots the same tree through the [`code-mode.cordis.yml`](code-mode.cordis.yml) overlay — the tool surface collapses to `run_code` + the generated TypeScript SDK, dispatching through the worker-thread code runtime (see the [dsh-tools Code Mode section](../../packages/core/tools/README.md#code-mode)). +This example is just a leaf `cordis.yml`: it loads the [`@deepseek-ai/dsh-acp-agent`](../../packages/ui/acp-agent) app (which bundles the [`@deepseek-ai/dsh-agent-core`](../../packages/core/agent-core) spine, JSONL session persistence, and the `@deepseek-ai/dsh-acp` bridge — with **no pre-created agents**, since ACP `session/new` creates them on demand), the swappable DeepSeek, bash, and filesystem backends, the model-facing `read`/`write`/`edit`/`subagent`/`subagent_fork`/`todo_write` tool entries, and the advisory `repeat-tool-guard` loop-hygiene plugin. The app package bakes in the no-stdout-logger cluster, so a leaf has no logger entry to get wrong by default — keeping stdout pure for JSON-RPC. `demo:code-mode acp` boots the same tree through the [`code-mode.cordis.yml`](code-mode.cordis.yml) overlay — the tool surface collapses to `run_code` + the generated TypeScript SDK, dispatching through the worker-thread code runtime (see the [dsh-tools Code Mode section](../../packages/core/tools/README.md#code-mode)). ## stdout is the protocol diff --git a/examples/acp-agent/code-mode.cordis.yml b/examples/acp-agent/code-mode.cordis.yml index 0dfbd73d26..d46e490494 100644 --- a/examples/acp-agent/code-mode.cordis.yml +++ b/examples/acp-agent/code-mode.cordis.yml @@ -3,7 +3,7 @@ # (the registry offers exactly one wire tool, run_code, plus the generated # TypeScript SDK prompt section) and the worker-thread code runtime joins the # tree as `ctx.codeRuntime`. The dsh-acp-agent bin boots this file for -# `pnpm run demo:acp-code` and when the snapshot harness records the +# `pnpm run demo:code-mode acp` and when the snapshot harness records the # code-mode scenarios; DSH_SNAPSHOT=replay swaps it for the sibling # code-mode.cordis.snapshot.yml. A config patch REPLACES the entry's whole # config, so the base entry's fields are restated verbatim. diff --git a/examples/code-agent/README.md b/examples/code-agent/README.md index 9b6619c0b3..6e08a883a3 100644 --- a/examples/code-agent/README.md +++ b/examples/code-agent/README.md @@ -3,7 +3,7 @@ The [Code Mode](../../docs/rfc/implemented/feature/2026-06-15-code-mode.md) form of the coding agent: instead of one native tool call per step, the model is offered exactly ONE wire tool — `run_code` — plus a generated TypeScript SDK section declaring every other registered tool (`bash`, `read`, `write`, `edit`, `todo_write`). The model composes tools by writing a program; the program runs in a fresh worker thread (`@deepseek-ai/dsh-code-runtime-worker`), its tool calls bridge back through the ordinary `tools/pre-execute`/`post-execute` pipeline one at a time, each is logged as a `tool/code-dispatch` session event, and ONLY what the program prints or returns re-enters the model's context. ```sh -pnpm run demo:code # needs DEEPSEEK_API_KEY (repo-root .env works) +pnpm run demo:code-mode # needs DEEPSEEK_API_KEY (repo-root .env works) ``` Try a task that spans several tool calls, e.g.: diff --git a/examples/code-agent/tests/keyless-smoke.e2e.ts b/examples/code-agent/tests/keyless-smoke.e2e.ts index 4b7a150e99..d5913e48d5 100644 --- a/examples/code-agent/tests/keyless-smoke.e2e.ts +++ b/examples/code-agent/tests/keyless-smoke.e2e.ts @@ -42,7 +42,7 @@ async function bootAndEof(): Promise<{ stdout: string; code: number }> { return new Promise((resolve, reject) => { const proc = spawn( process.execPath, - // --expose-internals: cordis.yml loads the HMR plugin (mirrors demo:code). + // --expose-internals: cordis.yml loads the HMR plugin (mirrors demo:code-mode). ['--expose-internals', '--import', tsxLoader, binScript, configPath], { cwd, diff --git a/package.json b/package.json index 4ed429f1d0..b906964b1e 100644 --- a/package.json +++ b/package.json @@ -63,9 +63,8 @@ "hygiene": "pnpm run knip && pnpm run publint && pnpm run constraints && pnpm run verify-node-next-types", "demo:echo": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/echo-agent/cordis.yml", "demo:repl": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/coding-agent/cordis.yml", - "demo:code": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/code-agent/cordis.yml", + "demo:code-mode": "node scripts/demo-code-mode.mjs", "demo:acp": "node --import tsx packages/ui/acp-agent/src/bin.ts examples/acp-agent/cordis.yml", - "demo:acp-code": "node --import tsx packages/ui/acp-agent/src/bin.ts examples/acp-agent/code-mode.cordis.yml", "postinstall": "node scripts/install-lefthook.mjs" }, "devDependencies": { diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index 7525fb8fd6..c0c7cfe437 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -133,7 +133,7 @@ Under `mode: code` (or `both`) the registry turns the tool surface into a progra - **The dispatch bridge** (`run_code`'s execute): every binding call is JSON-normalized BEFORE dispatch (a value that does not survive — `BigInt`, circulars — rejects that one call, so the dispatched form and the logged form are the same JSON value by construction), serialized through a per-run queue (even `Promise.all` executes the underlying `ctx.tools.execute()` calls one at a time in submission order — the tool contract carries no concurrency-safety metadata yet), gated by `tools/pre-execute`/`tools/post-execute` like any native call (a deny reaches the program as a binding rejection), and logged as one `tool/code-dispatch` session event (log-only: `deriveMessages()` never surfaces it) with the deterministic sub-id `:code:`. A failed sub-call REJECTS the program-side promise with the tool's error text — real code error handling, no bespoke envelope. A sub-call's `additionalContext` is deliberately DROPPED (no safe outlet mid-run without breaking tool-call/result adjacency; deferred until a real hook needs it through Code Mode). - **Settlement discipline**: the bridge owns a run-scoped abort that follows the outer signal in and fires when the run settles for any reason, so a budget expiry aborts an in-flight sub-tool instead of orphaning it; the bridge then drains its queue BEFORE returning, so every `tool/code-dispatch` lands inside the open turn. A failed run throws `CodeRunFailedError` (`code: 'CODE_RUN_FAILED'`, message = the failure kind + captured logs), which the pipeline converts to a structured `isError` the model self-corrects from. -The wire collapse is the registry's own contribution (`systemPrompt.tools()` is mode-aware), so the logged `request/header` records it for free — under `code`, the assembled tool list is exactly `[run_code]`, pinned by tests and the snapshot goldens. Try it: `pnpm run demo:code` ([examples/code-agent](../../../examples/code-agent/README.md)). +The wire collapse is the registry's own contribution (`systemPrompt.tools()` is mode-aware), so the logged `request/header` records it for free — under `code`, the assembled tool list is exactly `[run_code]`, pinned by tests and the snapshot goldens. Try it: `pnpm run demo:code-mode` ([examples/code-agent](../../../examples/code-agent/README.md)); `pnpm run demo:code-mode acp` serves the same mode over ACP instead of the REPL. ### What is NOT here (TODO) diff --git a/scripts/demo-code-mode.mjs b/scripts/demo-code-mode.mjs new file mode 100644 index 0000000000..465e5f2982 --- /dev/null +++ b/scripts/demo-code-mode.mjs @@ -0,0 +1,27 @@ +/** + * Boot the Code Mode demo under the UI named on the command line: + * `pnpm run demo:code-mode [repl|acp]`, default `repl`. Code Mode is the + * point — the UI is just the surface it happens to wear: `repl` starts the + * stdio REPL over examples/code-agent, `acp` starts the ACP server over + * examples/acp-agent's code-mode overlay. Both need DEEPSEEK_API_KEY + * (repo-root .env works). Anything else on the command line is a + * misconfiguration and fails loud with usage. + */ +import { spawn } from 'node:child_process' + +// Each UI's node invocation, verbatim what its standalone demo script ran +// (the stdio bin keeps --expose-internals for the cordis Loader's HMR path). +const UIS = new Map([ + ['repl', ['--expose-internals', '--import', 'tsx', 'packages/ui/stdio-agent/src/bin.ts', 'examples/code-agent/cordis.yml']], + ['acp', ['--import', 'tsx', 'packages/ui/acp-agent/src/bin.ts', 'examples/acp-agent/code-mode.cordis.yml']], +]) + +const ui = process.argv[2] ?? 'repl' +const args = UIS.get(ui) +if (!args || process.argv.length > 3) { + console.error('usage: pnpm run demo:code-mode [repl|acp]') + process.exit(2) +} + +const child = spawn(process.execPath, args, { stdio: 'inherit' }) +child.on('exit', (code, signal) => { process.exit(signal !== null ? 1 : code ?? 1) }) From 96c3c94f852c70af6cc5aa1d751fbe61e24640f7 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 12:27:08 +0800 Subject: [PATCH 109/232] fix(subagent): make the structured re-assert placement-preserving MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Re-auditing the review-fix commits surfaced a regression the REPLACE re-assert (825cbab3) introduced: unconditionally rebuilding both arrays as filter(...)+append moved structured_output to the END of the model-visible tool list on every untampered assembly (overriding the registry's toolOrder/lexicographic contract) and moved the instruction section to the absolute array end — renderPrompt reads ARRAY order, so any section above order 190 would render before the trailing instruction, violating the sections-sorted-ascending contract. The presence-check version it replaced touched neither array when the entries were intact. The re-assert keeps its REPLACE content semantics but is now placement-preserving: the tool is replaced IN PLACE (duplicates collapse, append only when stripped); the section is re-inserted at its ascending-order position (the first entry above 190 — exactly where the registry's stable sort put it, so the untampered path reaches the model byte-identical). Pinned by two regression tests that fail against the filter+append form: untampered placement (tool before a lexicographically later tool, instruction before an order-200 section) and tamper recovery (stripped section re-enters its band; an added duplicate collapses to one right-schema entry). --- .../subagent-inprocess/src/structured.ts | 49 +++++++++++---- .../tests/structured.spec.ts | 62 +++++++++++++++++++ 2 files changed, 100 insertions(+), 11 deletions(-) diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts index 51d1ea1b34..70605dfcc2 100644 --- a/packages/subagent/subagent-inprocess/src/structured.ts +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -21,8 +21,11 @@ * always carries its capture tool and the trailing instruction section. The * registry already contributes both; this outermost wrapper preserves the * guarantee against a (global) listener that strips or replaces the - * assembly. The loop logs the rendered assembly as the request header, so - * the demand is reconstructable log state, never a wire-only mutation. + * assembly — placement-preserving, so an untampered assembly reaches the + * model byte-identical (tools replaced in place, the section re-inserted at + * its ascending-order position). The loop logs the rendered assembly as the + * request header, so the demand is reconstructable log state, never a + * wire-only mutation. * - `agent/turn-continuation` (prepend, scoped): stop the child's turn once * its output is captured — the loop's default "had tool calls ⇒ continue" * would buy a wasted extra model step per structured child. @@ -138,15 +141,39 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut // REPLACE, not merely ensure-present: a downstream listener may have // mutated or injected a same-named entry with the WRONG schema/text, and // the model-visible demand must be exactly this run's own — the same - // schema validateStructuredValue enforces. - final.tools = [ - ...final.tools.filter(tool => tool.name !== STRUCTURED_OUTPUT_TOOL), - { ...schemaEntry, parameters: structuredClone(schemaEntry.parameters) }, - ] - final.sections = [ - ...final.sections.filter(section => section.name !== `tool:${STRUCTURED_OUTPUT_TOOL}`), - { name: `tool:${STRUCTURED_OUTPUT_TOOL}`, order: 190, text: STRUCTURED_OUTPUT_INSTRUCTION }, - ] + // schema validateStructuredValue enforces. Placement-preserving on both + // arrays: the untampered path must reach the model byte-identical to the + // registry's output (tool order is the `toolOrder`/lexicographic + // contract, section order is the ascending contract `renderPrompt` + // trusts), so this never reorders what it only re-asserts. + const freshTool: ToolSchema = { ...schemaEntry, parameters: structuredClone(schemaEntry.parameters) } + // Tools: replace the first same-named entry IN PLACE (its position is the + // chain's product; a tool's list position carries no semantic band to + // restore), drop any duplicates, append only when stripped entirely. + const tools: ToolSchema[] = [] + let toolReplaced = false + for (const tool of final.tools) { + if (tool.name !== STRUCTURED_OUTPUT_TOOL) { + tools.push(tool) + } else if (!toolReplaced) { + tools.push(freshTool) + toolReplaced = true + } + } + if (!toolReplaced) tools.push(freshTool) + final.tools = tools + // Sections: remove every same-named entry and re-insert at the + // ascending-correct position (the first entry above order 190) — sections + // DO carry an order contract, and the renderer reads array order, so a + // stripped-or-moved instruction is restored to its band, not appended + // after unrelated higher-order sections. On the untampered path this + // lands exactly where the registry's stable sort put it (last of the 190 + // band — the scoped section registers after every load-time 190). + const sectionName = `tool:${STRUCTURED_OUTPUT_TOOL}` + const sections = final.sections.filter(section => section.name !== sectionName) + const insertAt = sections.findIndex(section => section.order > 190) + sections.splice(insertAt === -1 ? sections.length : insertAt, 0, { name: sectionName, order: 190, text: STRUCTURED_OUTPUT_INSTRUCTION }) + final.sections = sections return final }, { prepend: true }) diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index 3384fe4aa3..8f2e8e69ea 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -465,6 +465,68 @@ describe('in-process structured output', () => { await run.dispose() }) + it('the re-assert preserves the untampered assembly: tool position and section band are the registry\'s own', async () => { + const { ctx, parent, adapter } = await setup([ + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 7 }), + ]) + // A global tool sorting lexicographically AFTER structured_output and a + // global section ABOVE the 190 band: the re-assert must leave both + // exactly where the registry's ordering put them (no move-to-end). + ctx.tools.register({ + name: 'zz_probe', + description: 'probe', + parameters: { type: 'object', properties: {} }, + execute: () => Promise.resolve([{ type: 'text', text: 'x' }]), + }) + ctx.systemPrompt.section({ name: 'after-band', order: 200, text: 'AFTER-BAND' }) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + await run.result + const request = adapter.requests[0]! + const names = toolNames(request) + expect(names.indexOf(STRUCTURED_OUTPUT_TOOL)).toBeGreaterThanOrEqual(0) + expect(names.indexOf(STRUCTURED_OUTPUT_TOOL)).toBeLessThan(names.indexOf('zz_probe')) + const system = request.system ?? '' + const instructionAt = system.indexOf(STRUCTURED_OUTPUT_INSTRUCTION) + expect(instructionAt).toBeGreaterThanOrEqual(0) + expect(system.indexOf('AFTER-BAND')).toBeGreaterThan(instructionAt) + await run.dispose() + }) + + it('a stripped instruction re-inserts at its band; an added duplicate entry collapses to one', async () => { + const { ctx, parent, adapter } = await setup([ + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 3 }), + ]) + ctx.systemPrompt.section({ name: 'after-band', order: 200, text: 'AFTER-BAND' }) + // Strip the instruction section entirely AND add a wrong-schema + // duplicate tool entry ALONGSIDE the registry's own: the re-assert must + // restore the section INTO its band (before the order-200 section, not + // appended after it) and collapse the tools to exactly one entry + // carrying the run's schema. + ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { + const replaced = await next() + return { + sections: replaced.sections.filter(section => section.name !== `tool:${STRUCTURED_OUTPUT_TOOL}`), + tools: [ + ...replaced.tools, + { name: STRUCTURED_OUTPUT_TOOL, description: 'wrong', parameters: { type: 'object', properties: { bogus: { type: 'string' } } } }, + ], + variables: { ...replaced.variables }, + } + }) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + const result = await run.result + expect(result.structured).toEqual({ answer: 3 }) + const request = adapter.requests[0]! + const entries = request.tools!.filter(tool => tool.name === STRUCTURED_OUTPUT_TOOL) + expect(entries).toHaveLength(1) + expect(entries[0]!.parameters).toEqual(SCHEMA) + const system = request.system ?? '' + const instructionAt = system.indexOf(STRUCTURED_OUTPUT_INSTRUCTION) + expect(instructionAt).toBeGreaterThanOrEqual(0) + expect(system.indexOf('AFTER-BAND')).toBeGreaterThan(instructionAt) + await run.dispose() + }) + it('a non-structured agent request keeps tools ABSENT when it had none (no tools: [] materialized)', async () => { const { parent, adapter } = await setup([textResponse('plain')]) parent.send([{ type: 'text', text: 'q' }]) From 6f4ea8a2601fdcd1c2f3843f41f6092fbb90a0bb Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 12:30:27 +0800 Subject: [PATCH 110/232] refactor(subagent): stage structured captures in a WeakMap keyed by execution MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Supersedes the single-slot staging the execution-identity fix (06c5f17e) kept: the one pending slot needed a mismatch-drop branch plus a defensive coverage-ignored finally to manage orphans, and it carried a latent trap — under the loop's documented parallel-execution TODO, two in-flight capture trips would overwrite the slot and BOTH be dropped. Staging in a WeakMap makes the stale-stage class structurally impossible instead of managed: an entry orphaned by an outer short-circuiting listener can never match a different execution's lookup (whatever call id that execution carries), needs no drop bookkeeping (the map reclaims it with the execution object), and staging cannot cross-clobber under parallel execution. Staging is the only layer this future-proofs — a parallel cut would still owe its own single-accept rule for the captured value, which is documented rather than claimed. Behavior is pinned by the existing orphan/call-id-reuse regression tests, which pass unchanged; the commit listener loses two branches and the v8-ignore. --- .../subagent-inprocess/src/structured.ts | 79 +++++++++---------- .../tests/structured.spec.ts | 2 +- 2 files changed, 39 insertions(+), 42 deletions(-) diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts index 70605dfcc2..5107897c68 100644 --- a/packages/subagent/subagent-inprocess/src/structured.ts +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -34,14 +34,14 @@ * lists `structured_output` before further tool calls cannot run side * effects after the final answer was accepted. * - `tools/post-execute` (prepend, scoped): the capture COMMIT. The tool body - * only STAGES the validated value, KEYED BY THE EXECUTION OBJECT'S - * IDENTITY; it becomes the run's captured result only when the final + * only STAGES the validated value, KEYED BY THE EXECUTION OBJECT in a + * WeakMap; it becomes the run's captured result only when the final * post-execute decision accepts THAT SAME pipeline trip. Execution-keyed - * staging closes the stale-stage hole unconditionally: an outer - * short-circuiting listener (post-execute block, or a pre-execute deny - * whose call never dispatched) can orphan a staged value, and neither a - * later call nor one REUSING the same adapter-minted call id can ever - * promote it — only the execution whose own body staged can commit. + * staging makes the stale-stage class structurally impossible: a value + * orphaned by an outer short-circuiting listener (a post-execute block, or + * a pre-execute deny whose call never dispatched) can never match another + * execution's lookup — whatever call id that execution carries — and is + * reclaimed with the execution object itself. * * @module @deepseek-ai/dsh-subagent-inprocess/structured */ @@ -89,14 +89,20 @@ export interface StructuredAttachment { */ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOutputSchema): StructuredAttachment { /** - * A validated value staged by the capture tool body, awaiting ITS OWN - * call's post-execute verdict — keyed by the {@link ToolExecution} OBJECT - * identity, the one token that provably ties a stage to one trip through - * the pipeline. A call id cannot key this: ids are adapter-minted and may - * repeat across steps, and a denied/failed later call REUSING an orphaned - * stage's id must never promote it. + * Validated values staged by the capture tool body, awaiting THEIR OWN + * call's post-execute verdict — keyed by the {@link ToolExecution} OBJECT, + * the one token that provably ties a stage to one trip through the + * pipeline. A call id cannot key this: ids are adapter-minted and may + * repeat across steps. Keying by execution makes the stale-stage class + * structurally impossible — an entry orphaned by an outer short-circuiting + * listener can never match a different execution's lookup, needs no drop + * bookkeeping (the WeakMap reclaims it with the execution object), and two + * in-flight captures can never cross-clobber each other's STAGE should + * tool execution ever go parallel (the loop's documented TODO). Staging is + * the only layer this future-proofs: a parallel-execution cut would still + * owe its own single-accept rule for `captured` itself. */ - let pending: { exec: ToolExecution; value: unknown } | undefined + const staged = new WeakMap() let captured: { value: unknown } | undefined const schemaEntry: ToolSchema = { @@ -119,7 +125,7 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut // Two-phase commit, KEYED BY THIS EXECUTION: the body only stages; the // post-execute listener promotes exactly this pipeline trip's entry // when the final decision accepts it. - pending = { exec, value: args } + staged.set(exec, { value: args }) return Promise.resolve([{ type: 'text', text: 'Structured output recorded.' }]) }, }) @@ -204,35 +210,26 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut return next() }, { prepend: true }) - // The capture COMMIT: promote the staged value only when the final - // post-execute decision accepts THE SAME CALL that staged it. The staging - // slot clears on every path for that call; a stale entry from an outer - // short-circuited chain (its verdict never reached us) is dropped when any - // later call reaches the commit, never promoted. + // The capture COMMIT: promote a staged value only when the final + // post-execute decision accepts THE SAME EXECUTION that staged it — the + // lookup key IS the execution, so a stale entry from a different pipeline + // trip (its own chain short-circuited past this commit by an outer + // post-execute block, or an outer pre-execute deny whose call never + // dispatched) is unreachable here by construction, whatever the current + // call's id. childCtx.on('tools/post-execute', async function ( this: unknown, exec: ToolExecution, _result: ToolExecutionResult, next: () => Promise, ): Promise { - if (exec.name !== STRUCTURED_OUTPUT_TOOL || pending === undefined) return next() - if (pending.exec !== exec) { - // A stale stage from a DIFFERENT pipeline trip: its own chain was - // short-circuited past this commit (an outer post-execute block, or an - // outer pre-execute deny whose call never dispatched), so its verdict - // never reached us. Whatever the current call's id, the orphan must - // never ride its acceptance — drop it. - pending = undefined - return next() - } - const staged = pending - try { - const decision = await next() - if (decision.kind === 'accept') captured = { value: staged.value } - return decision - } finally { - /* v8 ignore next -- defensive false branch: a concurrent re-stage - * would need a second capture call INSIDE the first's post-execute - * chain */ - if (pending === staged) pending = undefined - } + if (exec.name !== STRUCTURED_OUTPUT_TOOL) return next() + const entry = staged.get(exec) + if (entry === undefined) return next() + // Single-shot per execution: this trip's verdict is decided by the chain + // below, never revisited (the WeakMap would reclaim the entry either way; + // deleting states the intent). + staged.delete(exec) + const decision = await next() + if (decision.kind === 'accept') captured = { value: entry.value } + return decision }, { prepend: true }) return { captured: () => captured } diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index 8f2e8e69ea..e93faed4f1 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -578,7 +578,7 @@ describe('in-process structured output', () => { expect(result.error?.code).toBe('UNKNOWN_TOOL') }) - it('drops a stale stage from a short-circuited chain: a later call never promotes it (call-keyed commit)', async () => { + it('a stale stage from a short-circuited chain is never promoted by a later call (execution-keyed commit)', async () => { const { ctx, parent } = await setup([ toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 1 }), ]) From a3244a5774b91b7224a86d8373aa403cdca4fac3 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 12:33:18 +0800 Subject: [PATCH 111/232] fix(tool-subagent): an omitted agentOptions must not materialize an empty object MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The partial-toolFilter materialization fix (da6c6d58) stopped one field short: the adjacent agentOptions key in the SAME Config has the same schemastery trap. An omitted agentOptions materializes {}, which is truthy — so every yml-configured load put a dishonest agentOptions: {} on every start request and the presence check in execute() could never be false through config (only unit tests bypassing schemastery ever exercised that branch). Harmless downstream today (the driver only spreads it), but the request shape lied and the check was production-dead. Same discipline as its toolFilter sibling: the omitted key now defaults to undefined, the presence check is spelled !== undefined like its neighbors, and a regression test (fails against the unfixed schema) pins that an omitted agentOptions stays absent from the request. Swept every other Config in the repo for the class: no further instances — omitted primitives inside a materialized object stay ABSENT (verified empirically), so subagent-mock's capabilities spread is safe, and the remaining object/array fields all carry explicit defaults or the forced-undefined discipline already. --- packages/subagent/tool-subagent/src/index.ts | 8 +++-- .../tool-subagent/tests/tool-subagent.spec.ts | 30 +++++++++++++++++++ 2 files changed, 36 insertions(+), 2 deletions(-) diff --git a/packages/subagent/tool-subagent/src/index.ts b/packages/subagent/tool-subagent/src/index.ts index f677076d3f..31d6dce113 100644 --- a/packages/subagent/tool-subagent/src/index.ts +++ b/packages/subagent/tool-subagent/src/index.ts @@ -93,9 +93,13 @@ export interface Config { export const Config: z = z.object({ provider: z.string().required(), toolName: z.string().default('subagent'), + // Omitted-object discipline (see the toolFilter note below): without the + // forced default an omitted `agentOptions` materializes `{}`, which reads as + // present — the request would carry `agentOptions: {}` and the presence + // check in execute() could never be false through config. agentOptions: z.object({ model: z.string(), - }), + }).default(undefined as unknown as { model: string }), persona: z.string(), // A schemastery object materializes {} (with [] for nested arrays) when the // key is omitted — for toolFilter that would mean an EMPTY ALLOW-LIST, i.e. @@ -229,7 +233,7 @@ export function apply(ctx: Context, config: Config): void { prompt: [{ type: 'text', text: args.prompt }], parent, ...exec.signal ? { signal: exec.signal } : {}, - ...config.agentOptions ? { agentOptions: config.agentOptions } : {}, + ...config.agentOptions !== undefined ? { agentOptions: config.agentOptions } : {}, ...config.persona !== undefined ? { persona: config.persona } : {}, ...config.toolFilter !== undefined ? { toolFilter: config.toolFilter } : {}, ...config.maxDepth !== undefined ? { maxDepth: config.maxDepth } : {}, diff --git a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts index da560350e4..9d9941fdff 100644 --- a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts +++ b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts @@ -511,6 +511,36 @@ describe('dsh-tool-subagent', () => { expect(seen?.toolFilter).not.toHaveProperty('allow') }) + it('an omitted agentOptions does not materialize an empty object onto the request', async () => { + // Same schemastery trap as toolFilter, adjacent field: an omitted + // `agentOptions` config key materializes `{}` without the forced default, + // which reads as present and puts a dishonest `agentOptions: {}` on every + // start request. + let seen: { agentOptions?: unknown } | undefined + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(SubagentService) + ctx.subagents.registerProvider({ + name: 'capture4', + capabilities: { outputSchema: false, depthLimit: false, toolFilter: false, persona: false }, + inheritsParentContext: false, + start: (request) => { + seen = request + return { + id: AgentId('capture4-child'), + result: Promise.resolve({ output: [{ type: 'text', text: 'ok' }], stopReason: 'completed' as const }), + cancel() {}, + dispose: async () => {}, + } + }, + }) + await ctx.plugin(tool, { provider: 'capture4' }) + await callSubagent(ctx, { description: 'd', prompt: 'p' }) + expect(seen).toBeDefined() + expect(seen).not.toHaveProperty('agentOptions') + }) + it('an explicit empty toolFilter fails at plugin load, not at first delegation', async () => { const ctx = new Context() await ctx.plugin(SystemPrompt) From 4e8dc8e8f57918e1881889c7d2440f10159d0f4a Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 12:36:18 +0800 Subject: [PATCH 112/232] docs: fail the event matrix on a zero-dispatcher row; attribute provider-removed MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The chained-fused-dispatch spelling fix (0dc2fe90) was whack-a-mole: each unrecognized dispatch spelling silently drops a producer edge from the generated matrix, and only a human reading the table catches it. Convert the class to a build failure: the generator now hard-errors when any DECLARED event ends with zero dispatchers — dead vocabulary or a missed spelling, both actionable ('teach the scan or add a DYNAMIC_EVENT_DISPATCHERS override'). Zero LISTENERS stays legal: seven current rows (agent/request, system-prompt/assemble, tools/change, ...) are ordinary extension points dispatched for out-of-repo plugins. The guard caught a real one on its first run: subagent/provider-removed routes through the same contained events.dispatch as subagent/start|end (it fires inside the provider registration's disposer), but the DYNAMIC_EVENT_DISPATCHERS override list never got an entry when that containment routing was introduced — the committed matrix (on master too) claimed the event has NO dispatcher while tool-subagent listens for it. Override added; matrix regenerated with the producer edge restored. --- docs/event-producer-consumer.md | 2 +- scripts/gen-doc-graphs.ts | 22 ++++++++++++++++++++++ 2 files changed, 23 insertions(+), 1 deletion(-) diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 5687ad15d8..3ea9c7cbbd 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -27,7 +27,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `session/flush` | `parallel` | [`packages/core/session/src/index.ts:79`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | | `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:107`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:73`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | -| `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:84`](../packages/subagent/subagent/src/index.ts) | - | [`tool-subagent`](../packages/subagent/tool-subagent) | +| `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:84`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`tool-subagent`](../packages/subagent/tool-subagent) | | `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:96`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:44`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | | `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:54`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index f7e2ce9f4b..a61bfca763 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -203,6 +203,10 @@ const DYNAMIC_EVENT_DISPATCHERS: Array<{ event: string; pkg: string; method: str // listeners or strand an already-started child run. { event: 'subagent/start', pkg: 'subagent', method: 'events.dispatch' }, { event: 'subagent/end', pkg: 'subagent', method: 'events.dispatch' }, + // provider-removed fires inside the provider registration's DISPOSER and + // routes through the same contained dispatch (see emitLifecycle in + // dsh-subagent), so the AST scan cannot attribute it either. + { event: 'subagent/provider-removed', pkg: 'subagent', method: 'events.dispatch' }, ] function generatedHeader(title: string): string[] { @@ -579,6 +583,24 @@ function renderEventRelations(pkgs: Pkg[]): string { const relation = relations.get(event.name) ?? { dispatchers: new Map>(), listeners: new Set() } lines.push(`| \`${event.name}\` | \`${event.mode}\` | ${sourceLink(event.source)} | ${relationPackages(relation.dispatchers, pkgsByShort)} | ${listenerPackages(relation.listeners, pkgsByShort)} |`) } + // Completeness guard: every DECLARED event must have at least one dispatcher + // edge — a zero-dispatcher row is either dead vocabulary or (the observed + // failure mode) a dispatch spelling the AST scan does not recognize, silently + // dropping the producer from the matrix. Fail the generation loud instead: + // teach the scan the new spelling, add a DYNAMIC_EVENT_DISPATCHERS override, + // or remove the dead event. Zero LISTENERS is deliberately legal — an event + // dispatched for out-of-repo plugins is an ordinary extension point. + const undispatched = [...events] + .filter(event => (relations.get(event.name)?.dispatchers.size ?? 0) === 0) + .map(event => event.name) + .sort() + if (undispatched.length > 0) { + throw new Error( + `event-producer-consumer matrix: no dispatcher found for declared event${undispatched.length > 1 ? 's' : ''} ` + + `${undispatched.map(name => `"${name}"`).join(', ')} — dead vocabulary, or a dispatch spelling the scan misses ` + + '(teach scripts/gen-doc-graphs.ts the spelling or add a DYNAMIC_EVENT_DISPATCHERS override)', + ) + } const declared = new Set(events.map(event => event.name)) const extra = [...relations.keys()].filter(event => !declared.has(event)).sort() if (extra.length > 0) { From 9fddbac09593484a0a66bff8b75ee881ee0ef1f1 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 13:02:19 +0800 Subject: [PATCH 113/232] refactor: unify the Code Mode demos on base-plus-overlay MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Both demo:code-mode UIs now share one mechanism: the base example plus a same-shaped code-mode.cordis.yml include overlay (insert the worker runtime, flip tools.mode). Previously the REPL side was a hand-forked example (examples/code-agent) that had also silently diverged — it dropped compaction and the subagent stack — so the demo's UI argument switched agents, not just surfaces. The fork is retired: coding-agent gains the overlay, a Code Mode README section absorbing code-agent's, and both of its tests (the keyless boot guard, retargeted at the overlay; the with-key RFC proof, which hand-mounts its own harness and moves untouched). The RFC's composed-surface and e2e-tier lines, the examples index, the AGENTS.md smoke table, and the dsh-tools README link now describe the overlay shape. Verified live: overlay keyless smoke, with-key code-mode e2e from its new home, demo:code-mode banner + EOF exit, and the acp handshake. --- .../feature/2026-06-15-code-mode.md | 4 +- examples/AGENTS.md | 3 +- examples/README.md | 6 +- examples/code-agent/README.md | 17 ---- examples/code-agent/cordis.yml | 84 ------------------- examples/code-agent/package.json | 7 -- examples/coding-agent/README.md | 17 +++- examples/coding-agent/code-mode.cordis.yml | 33 ++++++++ .../tests/code-mode-keyless-smoke.e2e.ts} | 23 ++--- .../tests/code-mode.e2e.ts | 6 +- packages/core/tools/README.md | 2 +- scripts/demo-code-mode.mjs | 18 ++-- 12 files changed, 79 insertions(+), 141 deletions(-) delete mode 100644 examples/code-agent/README.md delete mode 100644 examples/code-agent/cordis.yml delete mode 100644 examples/code-agent/package.json create mode 100644 examples/coding-agent/code-mode.cordis.yml rename examples/{code-agent/tests/keyless-smoke.e2e.ts => coding-agent/tests/code-mode-keyless-smoke.e2e.ts} (75%) rename examples/{code-agent => coding-agent}/tests/code-mode.e2e.ts (96%) diff --git a/docs/rfc/implemented/feature/2026-06-15-code-mode.md b/docs/rfc/implemented/feature/2026-06-15-code-mode.md index 5ce9d784b9..4cc373c65c 100644 --- a/docs/rfc/implemented/feature/2026-06-15-code-mode.md +++ b/docs/rfc/implemented/feature/2026-06-15-code-mode.md @@ -90,7 +90,7 @@ What exists now: - **The seam**: `packages/code-runtime/` — `@deepseek-ai/dsh-code-runtime` (abstract `CodeRuntime`, the vocabulary above, `ctx.codeRuntime`) and `@deepseek-ai/dsh-code-runtime-worker` (the worker-thread backend, every cap a validated config field). Rows in the service map, capability-seams graph, config catalog, and cordis catalog. - **The registry surface**: `ToolRegistry`'s first config (`mode`), the mode-aware wire contribution, the `tools:sdk` section, `jsonSchemaToTs`/`renderToolsSdk` (exported), `run_code` + the dispatch bridge + `CodeRunFailedError`, and the `tool/code-dispatch` log event (declaration-merged into `SessionEventMap`, regenerated into the persistence catalog; `run_code` in the tool catalog). -- **The composed surface**: the `tools` config forwards through `agent-core` and both app packages (`stdio-agent`, `acp-agent`); `examples/code-agent` + `demo:code-mode` run the worker runtime under `mode: 'code'`; the adding-a-tool cookbook states that a registered tool is reachable from programs for free, and the tool-pipeline doc shows sub-dispatches re-entering both waterfalls. +- **The composed surface**: the `tools` config forwards through `agent-core` and both app packages (`stdio-agent`, `acp-agent`); `demo:code-mode` boots each UI example's `code-mode.cordis.yml` overlay (the worker runtime + `mode: 'code'` over the base tree); the adding-a-tool cookbook states that a registered tool is reachable from programs for free, and the tool-pipeline doc shows sub-dispatches re-entering both waterfalls. - **Interactions inherited by deployments**: a `toolOrder` naming native tools rejects every assembly under `'code'` (update or drop the order config when switching modes); sub-call `additionalContext` is dropped by the bridge (a plural context channel is deferred until a real hook needs it through Code Mode); sub-dispatch stays serialized until tools can declare concurrency safety — the same metadata the native parallel-dispatch TODO waits on. ## Testing @@ -99,7 +99,7 @@ What the suites pin, per tier: - **Unit — worker runtime** (real workers, no mocks): output/value capture and log-source attribution; error kinds (exception incl. non-erasable syntax, abort, worker-exit under OOM); the two budgets from both sides (a hot loop behind an un-awaited pending dispatch dies at `computeMs` busy time; a program idling on a slow binding outlives `computeMs` and dies only at `maxWallMs`); binding-bridge hostility (junk/forged port traffic incl. non-object messages and forged `log`/`done` cap bypass attempts, unknown names, duplicate ids, post-settlement replies, `__proto__`/`constructor`/`toString` binding names); structured-clone fallback and cap truncation; `env` emptiness verified from inside a program; dispose-awaits-exit. A real-load-path e2e runs the BUILT package under plain `node` so the worker entry resolves both unbuilt (tsx) and built — the published-artifact guard from [docs/testing.md](../../../testing.md). - **Unit — registry integration**: the codegen table (DSL subset, quoted names, `unknown` degradation, byte-identical determinism); provider contribution per mode (`'native'` unchanged, `'code'` exactly `[run_code]`, `'both'` all + `run_code`); `toolOrder × mode` rejection; missing-runtime / wrong-language loud failures; serialization non-overlap (a probe tool records enter/exit under `Promise.all`); abort aborting the in-flight sub-dispatch and abandoning queued ones; binding rejection on `isError` and on JSON-unrepresentable arguments; `CodeRunFailedError` → structured `isError` carrying kind + logs; `tool/code-dispatch` payloads (JSON-normalized arguments identical to what dispatched); `deriveMessages()` ignoring the event; sub-call `additionalContext` suppression; HMR safety (disposing the registry removes the tool and the section). -- **e2e (with-key, self-skips)**: a real model under `mode: 'code'` composes two bash calls in one program (`examples/code-agent/tests/code-mode.e2e.ts`) — every logged `request/header` carries exactly `[run_code]`, the dispatch events land under the parent call, the file the program wrote exists, and the final answer is the curated output. +- **e2e (with-key, self-skips)**: a real model under `mode: 'code'` composes two bash calls in one program (`examples/coding-agent/tests/code-mode.e2e.ts`) — every logged `request/header` carries exactly `[run_code]`, the dispatch events land under the parent call, the file the program wrote exists, and the final answer is the curated output. - **Snapshot (keyless replay)**: goldens for a `run_code` turn under `'code'` and `'both'` (`code-mode-turn`, `both-mode-turn`), each its own header-pinning class — the SDK section text, the collapsed header tool list, the dispatch events, and the result card are committed and replayed. ## Alternatives considered diff --git a/examples/AGENTS.md b/examples/AGENTS.md index 177ee18aa0..1434c46667 100644 --- a/examples/AGENTS.md +++ b/examples/AGENTS.md @@ -20,8 +20,7 @@ A keyless smoke that spawns the example from a temp cwd must set `TSX_TSCONFIG_P | Example | Keyless smoke | With-key smoke | |---|---|---| | `echo-agent` | `tests/echo.e2e.ts` — boots the real `cordis.yml`, drives the echo tool round-trip and the direct canned reply | **N/A — keyless by nature** (the `mock-echo` model has no real provider) | -| `coding-agent` | `tests/keyless-smoke.e2e.ts` — boots the full real tree (dummy key, no prompt → no model call), asserts banner + clean exit | `tests/{full-loop,coding-task,resume,compaction,todo-write}.e2e.ts` — real model + real bash + real todo_write, world-verified | -| `code-agent` | `tests/keyless-smoke.e2e.ts` — the Code Mode boot guard | `tests/code-mode.e2e.ts` — a real model composes two bash calls in one `run_code` program; collapsed header, dispatch events, written file all verified | +| `coding-agent` | `tests/keyless-smoke.e2e.ts` — boots the full real tree (dummy key, no prompt → no model call), asserts banner + clean exit; `tests/code-mode-keyless-smoke.e2e.ts` — the same boot guard for the Code Mode overlay | `tests/{full-loop,coding-task,resume,compaction,todo-write}.e2e.ts` — real model + real bash + real todo_write, world-verified; `tests/code-mode.e2e.ts` — a real model composes two bash calls in one `run_code` program; collapsed header, dispatch events, written file all verified | | `acp-agent` | `pnpm run test:snapshot` — boots the real ACP subprocess and replays a recorded session keyless (incl. the hook matrix: a scenario per hook point × outcome for BOTH the Claude and Codex bridges — block, deny, ask, context-fold, force-continue); `tests/acp.e2e.ts` also asserts stdout purity without a key | `tests/acp.e2e.ts` — real ACP prompt, verifies a file the agent wrote; `tests/hooks.e2e.ts` — a real `PreToolUse` hook blocks bash, verifies the file is NOT written | See [the root AGENTS.md](../AGENTS.md) for repo-wide conventions and [docs/architecture.md](../docs/architecture.md) for the design. diff --git a/examples/README.md b/examples/README.md index 3027d01f0a..56c10f676b 100644 --- a/examples/README.md +++ b/examples/README.md @@ -19,11 +19,7 @@ A REPL agent demo: DeepSeek V4 + the `read`/`write`/`edit` filesystem tools + th Run with: `pnpm run demo:repl` (needs `DEEPSEEK_API_KEY` in the environment or a gitignored repo-root `.env`). See [coding-agent/README.md](coding-agent/README.md) for details. -## code-agent - -The coding agent flipped to **Code Mode**: the worker-thread code runtime is loaded and the tool registry runs `mode: code`, so the model gets exactly one wire tool — `run_code` — plus a generated TypeScript SDK section, and composes bash/read/write/edit/todo_write by writing a program whose output it curates. - -Run with: `pnpm run demo:code-mode` (needs `DEEPSEEK_API_KEY`; the REPL is the default UI — `acp` as the argument serves the acp-agent example's Code Mode overlay instead). See [code-agent/README.md](code-agent/README.md) for what to try and how it differs from coding-agent. +Its `code-mode.cordis.yml` overlay flips the same tree to **Code Mode**: the worker-thread code runtime is loaded and the tool registry runs `mode: code`, so the model gets exactly one wire tool — `run_code` — plus a generated TypeScript SDK section, and composes the other tools by writing a program whose output it curates. Run with: `pnpm run demo:code-mode` (the REPL is the default UI; `acp` as the argument serves the acp-agent example's same-shaped overlay instead) — see the [Code Mode section](coding-agent/README.md#code-mode) for what to try. ## acp-agent diff --git a/examples/code-agent/README.md b/examples/code-agent/README.md deleted file mode 100644 index 6e08a883a3..0000000000 --- a/examples/code-agent/README.md +++ /dev/null @@ -1,17 +0,0 @@ -# code-agent — the Code Mode demo - -The [Code Mode](../../docs/rfc/implemented/feature/2026-06-15-code-mode.md) form of the coding agent: instead of one native tool call per step, the model is offered exactly ONE wire tool — `run_code` — plus a generated TypeScript SDK section declaring every other registered tool (`bash`, `read`, `write`, `edit`, `todo_write`). The model composes tools by writing a program; the program runs in a fresh worker thread (`@deepseek-ai/dsh-code-runtime-worker`), its tool calls bridge back through the ordinary `tools/pre-execute`/`post-execute` pipeline one at a time, each is logged as a `tool/code-dispatch` session event, and ONLY what the program prints or returns re-enters the model's context. - -```sh -pnpm run demo:code-mode # needs DEEPSEEK_API_KEY (repo-root .env works) -``` - -Try a task that spans several tool calls, e.g.: - -> Count the lines of every `*.md` file under docs/ and write the three largest to summary.txt. - -and watch the transcript: one `run_code` call, a program looping over tools, and a result the model curated instead of five round-trips of raw tool output. - -Two lines of `cordis.yml` make the difference from [examples/coding-agent](../coding-agent/README.md): the `code-runtime` entry (the worker-thread backend registering `ctx.codeRuntime`) and `tools: { mode: code }` on the app (flip it to `both` to offer native calls AND `run_code` side by side; remove both lines and it IS the coding agent). - -Tests: `tests/keyless-smoke.e2e.ts` boots the real `cordis.yml` through the Loader with no prompt (the export-shape guard); `tests/code-mode.e2e.ts` is the with-key proof — a real model, a two-tool task, asserting the wire tool list was exactly `[run_code]`, the `tool/code-dispatch` events landed, and the curated answer came back. diff --git a/examples/code-agent/cordis.yml b/examples/code-agent/cordis.yml deleted file mode 100644 index e4bb4de1e5..0000000000 --- a/examples/code-agent/cordis.yml +++ /dev/null @@ -1,84 +0,0 @@ -# The code-agent plugin tree: the Code Mode demo. The same spine as -# examples/coding-agent — the DeepSeek adapter, local bash, filesystem and -# todo tool stacks over the stdio chat app — with TWO differences that turn -# it into Cloudflare-style Code Mode: -# -# 1. `code-runtime` loads the worker-thread code-execution backend -# (`ctx.codeRuntime`): one fresh Node worker per run, TypeScript in. -# 2. `stdio-agent` sets `tools: { mode: code }`, so the model is offered -# exactly ONE wire tool — `run_code` — plus a generated TypeScript SDK -# prompt section declaring bash/read/write/edit/todo_write; the model -# composes them by WRITING A PROGRAM, and only what it prints or -# returns re-enters its context. -# -# Requires DEEPSEEK_API_KEY (and optionally DEEPSEEK_BASE_URL) in the -# environment — the dsh-stdio-agent bin loads the gitignored repo-root .env -# first. cordis.yml reads them via the `!!js` tag. - -# Hot-module reload for the dev/demo loop (needs `node --expose-internals`). -- id: hmr - name: '@cordisjs/plugin-hmr' - config: - root: ['.'] - -# The DeepSeek adapter. -- id: llm-deepseek - name: '@deepseek-ai/dsh-llm-deepseek' - config: - apiKey: !!js process.env.DEEPSEEK_API_KEY - baseURL: !!js process.env.DEEPSEEK_BASE_URL - models: - - deepseek-v4-pro - - deepseek-v4-flash - -# Local bash executor for the spine's `bash` tool schemas. -- id: bash - name: '@deepseek-ai/dsh-bash-local' - config: - timeoutMs: 60000 - -# The code-execution backend: `run_code` programs execute here, in one fresh -# worker thread per run with an empty environment, port-bridged tool -# bindings, and busy-time/wall-clock/heap caps (all overridable here). -- id: code-runtime - name: '@deepseek-ai/dsh-code-runtime-worker' - -# The stdio chat app with the registry flipped to Code Mode: the wire tool -# list collapses to [run_code] and the `tools:sdk` prompt section carries the -# generated TypeScript declarations for every other registered tool. -- id: stdio-agent - name: '@deepseek-ai/dsh-stdio-agent' - config: - model: deepseek-v4-flash - tools: - mode: code - # Set RESUME_SESSION_ID to continue a prior persisted session (the ids - # live under ./.sessions); unset starts a fresh session each run. - resumeSessionId: !!js process.env.RESUME_SESSION_ID - persistenceRoot: './.sessions' - welcome: 'code-mode agent ready. Give it a multi-tool task.' - persona: | - You are code-agent, a coding assistant powered by the {{model}} model. - - You work by writing TypeScript programs for run_code: batch related - tool work into one program, loop and branch where it helps, and print - or return ONLY the findings that matter. - -# The model-facing todo_write tool: whole-list task tracking written to the -# session log (todo/write), rendered as a stdio checklist. -- id: tool-todo - name: '@deepseek-ai/dsh-tool-todo' - -# Filesystem capability stack: local provider, read-before-write/edit policy -# gate, then the model-facing read/write/edit tools — all reachable from a -# run_code program as `tools.read(...)` / `tools.write(...)` / `tools.edit(...)`. -- id: fs-local - name: '@deepseek-ai/dsh-fs-local' - config: - cwd: !!js process.cwd() - -- id: fs-policy - name: '@deepseek-ai/dsh-fs-policy' - -- id: tool-fs - name: '@deepseek-ai/dsh-tool-fs' diff --git a/examples/code-agent/package.json b/examples/code-agent/package.json deleted file mode 100644 index 0aa0e52c52..0000000000 --- a/examples/code-agent/package.json +++ /dev/null @@ -1,7 +0,0 @@ -{ - "name": "code-agent-example", - "private": true, - "version": "0.0.1", - "type": "module", - "description": "Runnable demo: Code Mode — the model writes TypeScript against the tool registry" -} diff --git a/examples/coding-agent/README.md b/examples/coding-agent/README.md index 4b15d2dc5a..7731aa8f09 100644 --- a/examples/coding-agent/README.md +++ b/examples/coding-agent/README.md @@ -31,6 +31,21 @@ RESUME_SESSION_ID= pnpm run demo:repl The id is wired through `cordis.yml` (`resumeSessionId: !!js process.env.RESUME_SESSION_ID`); unset, the agent starts a new session. A missing/unreadable id is non-fatal — it logs a warning and starts no `main` agent. +## Code Mode + +[`code-mode.cordis.yml`](code-mode.cordis.yml) is this same tree flipped to [Code Mode](../../docs/rfc/implemented/feature/2026-06-15-code-mode.md): an include overlay over `./cordis.yml` whose two patches insert the worker-thread code runtime (`@deepseek-ai/dsh-code-runtime-worker`, registering `ctx.codeRuntime`) and set `tools: { mode: code }` on the app. The model is then offered exactly ONE wire tool — `run_code` — plus a generated TypeScript SDK section declaring every other registered tool; it composes them by writing a program, each program tool call bridges back through the ordinary `tools/pre-execute`/`post-execute` pipeline one at a time and is logged as a `tool/code-dispatch` session event, and ONLY what the program prints or returns re-enters its context. (Flip the mode to `both` to offer native calls AND `run_code` side by side.) + +```sh +pnpm run demo:code-mode # this overlay under the REPL (default UI) +pnpm run demo:code-mode acp # the acp-agent example's same-shaped overlay +``` + +Try a task that spans several tool calls, e.g.: + +> Count the lines of every `*.md` file under docs/ and write the three largest to summary.txt. + +and watch the transcript: one `run_code` call, a program looping over tools, and a result the model curated instead of five round-trips of raw tool output. + ## What each leaf entry demonstrates This example is a thin leaf `cordis.yml`: it picks the swappable backends, loads one app package, and adds product tools that are intentionally outside the shared spine. The spine (sessions, system-prompt, tools, agents, invariants, `agent-loop`) and the front-door cluster (console logger, JSONL persistence, readline UI, the pre-created `main` agent) live inside the [`@deepseek-ai/dsh-stdio-agent`](../../packages/ui/stdio-agent) app and the [`@deepseek-ai/dsh-agent-core`](../../packages/core/agent-core) bundle it loads; the leaf wires the backends and model-facing optional tools: @@ -54,4 +69,4 @@ This example is a thin leaf `cordis.yml`: it picks the swappable backends, loads - `tests/compaction.e2e.ts` — the compaction smoke: a real multi-step bash task runs with a deliberately tiny context window so the auto-compaction listener fires MID-SESSION. Verifies the WORLD — a `compact/start…end` pair landed in the real log, the surface shrank (a replace node shadowed older nodes), and the agent still produced a correct final answer after compaction. - `tests/todo-write.e2e.ts` — a real model drives the real `todo_write` tool and the test verifies the resulting `todo/write` session event. -These self-skip without `DEEPSEEK_API_KEY`. The keyless boot smoke is `tests/keyless-smoke.e2e.ts` (boots the full real tree with a dummy key and no prompt, so no model call), which runs in the default e2e gate. +These self-skip without `DEEPSEEK_API_KEY`. `tests/code-mode.e2e.ts` is the with-key Code Mode proof — a real model, a two-tool task, asserting the wire tool list was exactly `[run_code]`, the `tool/code-dispatch` events landed under the parent call, and the curated answer came back. The keyless boot smokes run in the default e2e gate: `tests/keyless-smoke.e2e.ts` (the full real tree, dummy key, no prompt → no model call) and `tests/code-mode-keyless-smoke.e2e.ts` (the same guard for the Code Mode overlay). diff --git a/examples/coding-agent/code-mode.cordis.yml b/examples/coding-agent/code-mode.cordis.yml new file mode 100644 index 0000000000..ac4ce03570 --- /dev/null +++ b/examples/coding-agent/code-mode.cordis.yml @@ -0,0 +1,33 @@ +# Code Mode overlay: the live coding-agent tree (./cordis.yml) with two +# load-time patches — the app entry's config gains `tools: { mode: code }` +# (the registry offers exactly one wire tool, run_code, plus the generated +# TypeScript SDK prompt section declaring bash/read/write/edit/subagent/ +# todo_write) and the worker-thread code runtime joins the tree as +# `ctx.codeRuntime`. The dsh-stdio-agent bin boots this file for +# `pnpm run demo:code-mode` (the acp-agent example carries the same-shaped +# overlay for the `acp` UI). A config patch REPLACES the entry's whole +# config, so the base entry's fields are restated verbatim; only `tools`, +# the welcome, and the persona's second paragraph are Code Mode deltas. +- id: base + name: '@cordisjs/plugin-include' + config: + path: ./cordis.yml + patches: + - id: stdio-agent + name: '@deepseek-ai/dsh-stdio-agent' + config: + model: deepseek-v4-flash + resumeSessionId: !!js process.env.RESUME_SESSION_ID + persistenceRoot: './.sessions' + tools: + mode: code + welcome: 'code-mode agent ready. Give it a multi-tool task.' + persona: | + You are coding-agent, a coding assistant powered by the {{model}} model. + + You work by writing TypeScript programs for run_code: batch related + tool work into one program, loop and branch where it helps, and print + or return ONLY the findings that matter. + - insert: + - id: code-runtime + name: '@deepseek-ai/dsh-code-runtime-worker' diff --git a/examples/code-agent/tests/keyless-smoke.e2e.ts b/examples/coding-agent/tests/code-mode-keyless-smoke.e2e.ts similarity index 75% rename from examples/code-agent/tests/keyless-smoke.e2e.ts rename to examples/coding-agent/tests/code-mode-keyless-smoke.e2e.ts index d5913e48d5..7894e9ff9f 100644 --- a/examples/code-agent/tests/keyless-smoke.e2e.ts +++ b/examples/coding-agent/tests/code-mode-keyless-smoke.e2e.ts @@ -6,11 +6,12 @@ import { fileURLToPath } from 'node:url' import { afterEach, describe, expect, it } from 'vitest' /** - * Keyless Loader-path smoke for examples/code-agent: boot the REAL example - * through the `@deepseek-ai/dsh-stdio-agent` bin against its `cordis.yml` - * (the cordis Loader, `unwrapExports`, the full plugin tree incl. the - * worker-thread code runtime and the registry in `mode: code`), then close - * stdin with no prompt and assert the ready banner + a clean exit. + * Keyless Loader-path smoke for the Code Mode overlay: boot the REAL + * example through the `@deepseek-ai/dsh-stdio-agent` bin against + * `code-mode.cordis.yml` (the cordis Loader, `unwrapExports`, the include + * patches over ./cordis.yml, the worker-thread code runtime, and the + * registry in `mode: code`), then close stdin with no prompt and assert + * the Code Mode banner + a clean exit. * * No prompt is ever sent, so the model is NEVER called and no `run_code` * turn happens — a dummy key lets `llm-deepseek`'s key-PRESENT check boot @@ -19,7 +20,7 @@ import { afterEach, describe, expect, it } from 'vitest' */ const binScript = fileURLToPath(new URL('../../../packages/ui/stdio-agent/src/bin.ts', import.meta.url)) -const configPath = fileURLToPath(new URL('../cordis.yml', import.meta.url)) +const configPath = fileURLToPath(new URL('../code-mode.cordis.yml', import.meta.url)) const tsxLoader = fileURLToPath(import.meta.resolve('tsx')) // Dev/test run UNBUILT: resolve `@deepseek-ai/dsh-*` through the root tsconfig // `paths` map; tsx searches UP from cwd, and we spawn from a temp dir outside @@ -37,12 +38,12 @@ afterEach(async () => { }) async function bootAndEof(): Promise<{ stdout: string; code: number }> { - workdir = await mkdtemp(join(tmpdir(), 'code-agent-smoke-')) + workdir = await mkdtemp(join(tmpdir(), 'code-mode-smoke-')) const cwd = workdir return new Promise((resolve, reject) => { const proc = spawn( process.execPath, - // --expose-internals: cordis.yml loads the HMR plugin (mirrors demo:code-mode). + // --expose-internals: the included cordis.yml loads the HMR plugin (mirrors demo:code-mode). ['--expose-internals', '--import', tsxLoader, binScript, configPath], { cwd, @@ -66,13 +67,13 @@ async function bootAndEof(): Promise<{ stdout: string; code: number }> { const timer = setTimeout(() => { proc.kill('SIGKILL') - reject(new Error(`code-agent did not exit within 10s. stdout:\n${stdout}\nstderr:\n${stderr}`)) + reject(new Error(`code-mode overlay did not exit within 10s. stdout:\n${stdout}\nstderr:\n${stderr}`)) }, 10_000) proc.on('exit', (code) => { clearTimeout(timer) if (code === 0) resolve({ stdout, code }) - else reject(new Error(`code-agent exited ${code}. stderr:\n${stderr}`)) + else reject(new Error(`code-mode overlay exited ${code}. stderr:\n${stderr}`)) }) proc.on('error', (err) => { clearTimeout(timer); reject(err) }) @@ -81,7 +82,7 @@ async function bootAndEof(): Promise<{ stdout: string; code: number }> { }) } -describe('code-agent keyless smoke (real cordis.yml via the Loader)', () => { +describe('code-mode overlay keyless smoke (real code-mode.cordis.yml via the Loader)', () => { it('boots the Code Mode plugin tree, prints its banner, and exits cleanly on EOF', async () => { const { stdout, code } = await bootAndEof() expect(code).toBe(0) diff --git a/examples/code-agent/tests/code-mode.e2e.ts b/examples/coding-agent/tests/code-mode.e2e.ts similarity index 96% rename from examples/code-agent/tests/code-mode.e2e.ts rename to examples/coding-agent/tests/code-mode.e2e.ts index 6b0771380d..512688d88d 100644 --- a/examples/code-agent/tests/code-mode.e2e.ts +++ b/examples/coding-agent/tests/code-mode.e2e.ts @@ -22,11 +22,11 @@ import { WorkerCodeRuntime } from '@deepseek-ai/dsh-code-runtime-worker' * `[run_code]` as the wire tool list, each sub-call landed as a * `tool/code-dispatch` event, the file the program wrote exists on disk, and * the final answer is the program's curated output. Key-gated (see - * vitest.e2e.config.ts); the keyless Loader-path smoke lives in - * `keyless-smoke.e2e.ts`. + * vitest.e2e.config.ts); the keyless Loader-path smoke of the overlay lives + * in `code-mode-keyless-smoke.e2e.ts`. */ -const PERSONA = 'You are code-agent. You work by writing TypeScript programs for run_code: ' +const PERSONA = 'You are coding-agent. You work by writing TypeScript programs for run_code: ' + 'batch related tool work into one program and print or return ONLY the findings that matter.' let ctx: Context | undefined diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index c0c7cfe437..2ca93b94af 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -133,7 +133,7 @@ Under `mode: code` (or `both`) the registry turns the tool surface into a progra - **The dispatch bridge** (`run_code`'s execute): every binding call is JSON-normalized BEFORE dispatch (a value that does not survive — `BigInt`, circulars — rejects that one call, so the dispatched form and the logged form are the same JSON value by construction), serialized through a per-run queue (even `Promise.all` executes the underlying `ctx.tools.execute()` calls one at a time in submission order — the tool contract carries no concurrency-safety metadata yet), gated by `tools/pre-execute`/`tools/post-execute` like any native call (a deny reaches the program as a binding rejection), and logged as one `tool/code-dispatch` session event (log-only: `deriveMessages()` never surfaces it) with the deterministic sub-id `:code:`. A failed sub-call REJECTS the program-side promise with the tool's error text — real code error handling, no bespoke envelope. A sub-call's `additionalContext` is deliberately DROPPED (no safe outlet mid-run without breaking tool-call/result adjacency; deferred until a real hook needs it through Code Mode). - **Settlement discipline**: the bridge owns a run-scoped abort that follows the outer signal in and fires when the run settles for any reason, so a budget expiry aborts an in-flight sub-tool instead of orphaning it; the bridge then drains its queue BEFORE returning, so every `tool/code-dispatch` lands inside the open turn. A failed run throws `CodeRunFailedError` (`code: 'CODE_RUN_FAILED'`, message = the failure kind + captured logs), which the pipeline converts to a structured `isError` the model self-corrects from. -The wire collapse is the registry's own contribution (`systemPrompt.tools()` is mode-aware), so the logged `request/header` records it for free — under `code`, the assembled tool list is exactly `[run_code]`, pinned by tests and the snapshot goldens. Try it: `pnpm run demo:code-mode` ([examples/code-agent](../../../examples/code-agent/README.md)); `pnpm run demo:code-mode acp` serves the same mode over ACP instead of the REPL. +The wire collapse is the registry's own contribution (`systemPrompt.tools()` is mode-aware), so the logged `request/header` records it for free — under `code`, the assembled tool list is exactly `[run_code]`, pinned by tests and the snapshot goldens. Try it: `pnpm run demo:code-mode` ([the coding-agent example's Code Mode overlay](../../../examples/coding-agent/README.md#code-mode)); `pnpm run demo:code-mode acp` serves the same mode over ACP instead of the REPL. ### What is NOT here (TODO) diff --git a/scripts/demo-code-mode.mjs b/scripts/demo-code-mode.mjs index 465e5f2982..a93ea98173 100644 --- a/scripts/demo-code-mode.mjs +++ b/scripts/demo-code-mode.mjs @@ -1,18 +1,20 @@ /** * Boot the Code Mode demo under the UI named on the command line: * `pnpm run demo:code-mode [repl|acp]`, default `repl`. Code Mode is the - * point — the UI is just the surface it happens to wear: `repl` starts the - * stdio REPL over examples/code-agent, `acp` starts the ACP server over - * examples/acp-agent's code-mode overlay. Both need DEEPSEEK_API_KEY - * (repo-root .env works). Anything else on the command line is a - * misconfiguration and fails loud with usage. + * point — the UI is just the surface it happens to wear: each UI boots its + * base example through that example's `code-mode.cordis.yml` overlay + * (include ./cordis.yml, flip `tools.mode` to `code`, insert the + * worker-thread code runtime). Both need DEEPSEEK_API_KEY (repo-root .env + * works). Anything else on the command line is a misconfiguration and + * fails loud with usage. */ import { spawn } from 'node:child_process' -// Each UI's node invocation, verbatim what its standalone demo script ran -// (the stdio bin keeps --expose-internals for the cordis Loader's HMR path). +// Each UI's node invocation, verbatim what its base demo script runs plus +// the overlay config (the stdio bin keeps --expose-internals for the cordis +// Loader's HMR path). const UIS = new Map([ - ['repl', ['--expose-internals', '--import', 'tsx', 'packages/ui/stdio-agent/src/bin.ts', 'examples/code-agent/cordis.yml']], + ['repl', ['--expose-internals', '--import', 'tsx', 'packages/ui/stdio-agent/src/bin.ts', 'examples/coding-agent/code-mode.cordis.yml']], ['acp', ['--import', 'tsx', 'packages/ui/acp-agent/src/bin.ts', 'examples/acp-agent/code-mode.cordis.yml']], ]) From 7c5133488a1fb8ca403796f86595fbcb50a3da70 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 13:05:44 +0800 Subject: [PATCH 114/232] refactor(core): every registry register-method returns the exact effect disposer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The exact-disposer fix (5fbac8be B1) repaired agents.register but left the same wrapper (return () => void dispose()) at seven sibling sites: tools.register, tools.restrict, systemPrompt.section/tools/variable, agents.setFactory, and subagents.registerProvider. A wrapper makes correct composite usage unrepresentable — the exact disposer cannot be recovered, so a generator effect yielding it leaves the inner effect disposing as a CONCURRENT SIBLING on owner unload, silently reproducing B1's ordering corruption. The exact disposer serves both usages (composite-nestable AND fire-and-forget callable); all seven now return it, typed () => Promise | void, with the convention pinned by a discriminating test: an async-link composite probe that passes with the exact disposer and observes the sibling unregistration firing mid-drain with a wrapper. Re-auditing also surfaced that B1 itself SHIPPED a full-lint failure: it changed register()'s return type without updating cross-file consumers (agent.spec.ts dispose() statements, tool-bash's disposer list), which the staged-scoped pre-commit lint never saw — pnpm run lint was red at HEAD. Those three sites and this change's own fallout are fixed together: tests now await disposers (stronger — they observe the full unwind), sync paths void them, and the two annotation sites carry the honest union type. agents.register's README line had drifted the same way (B1 updated the JSDoc, not the README) — all seven README signatures now match; services catalog regenerated. --- docs/cordis-catalog/services.md | 14 +++--- packages/bash/tool-bash/tests/tools.spec.ts | 4 +- packages/core/agent/README.md | 4 +- packages/core/agent/src/index.ts | 12 +++-- packages/core/agent/tests/agent.spec.ts | 6 +-- packages/core/system-prompt/README.md | 6 +-- packages/core/system-prompt/src/index.ts | 48 +++++++++++++------ .../core/system-prompt/tests/scoped.spec.ts | 2 +- .../system-prompt/tests/system-prompt.spec.ts | 8 ++-- packages/core/tools/README.md | 4 +- packages/core/tools/src/index.ts | 32 +++++++++---- packages/core/tools/tests/scoped.spec.ts | 2 +- packages/core/tools/tests/tools.spec.ts | 33 ++++++++++++- .../tests/structured.spec.ts | 2 +- packages/subagent/subagent/src/index.ts | 16 +++++-- .../subagent/subagent/tests/service.spec.ts | 8 ++-- packages/subagent/tool-subagent/src/index.ts | 4 +- 17 files changed, 138 insertions(+), 67 deletions(-) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 3dc09d3fa3..783ef7c83e 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -28,7 +28,7 @@ Source: [`packages/core/agent-loop/src/index.ts:70`](../../packages/core/agent-l Agent registry (`ctx.agents`): tracks live agents so UI, hook, and orchestrator plugins can find them without depending on the concrete loop package. Agent *creation* is provided by whichever plugin implements the AgentFactory (phase 1: `@deepseek-ai/dsh-agent-loop`), registered via setFactory. ```ts cordis-catalog -setFactory(factory: AgentFactory): () => void +setFactory(factory: AgentFactory): () => Promise | void create(options: CreateAgentOptions): AgentHandle async resume(options: ResumeAgentOptions): Promise register(agent: Agent): () => Promise | void @@ -191,7 +191,7 @@ Source: [`packages/core/session/src/index.ts:427`](../../packages/core/session/s The `subagents` service: a registry of named SubagentProviders and a capability-checked start surface. ```ts cordis-catalog -registerProvider(provider: SubagentProvider): () => void +registerProvider(provider: SubagentProvider): () => Promise | void getProvider(name: string): SubagentProvider | undefined list(): string[] start(name: string, request: SubagentStartRequest): SubagentRun @@ -204,9 +204,9 @@ Source: [`packages/subagent/subagent/src/index.ts:153`](../../packages/subagent/ Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, and named prompt variables; the agent loop calls `assemble(context)` once per step. Registers the harness-owned `harness:identity` and `deployment:persona` sections itself (see Config.persona). ```ts cordis-catalog -section(section: PromptSection): () => void -tools(provider: (context: AssembleContext) => ToolProviderResult): () => void -variable(name: string, provider: (context: AssembleContext) => string | undefined): () => void +section(section: PromptSection): () => Promise | void +tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void +variable(name: string, provider: (context: AssembleContext) => string | undefined): () => Promise | void async assemble(context: AssembleContext = {}): Promise ``` @@ -219,8 +219,8 @@ Tool registry (`ctx.tools`): tool plugins register definitions; the agent loop e Two registration layers (`@deepseek-ai/dsh-scope`): a registration through a plain plugin context is GLOBAL (visible to every agent); one through a scoped context (`agent.ctx`) is filed in that scope's layer — visible to that agent alone, disposed with the scope, and SHADOWING a global tool of the same name for that agent (most-specific-wins; within one layer a duplicate name still throws). restrict masks the global layer per scope. One visibility function (visible) feeds prompt assembly, get, and execute, so what the model is shown, what a presenter renders, and what dispatches can never disagree. ```ts cordis-catalog -register(definition: ToolDefinition): () => void -restrict(filter: ToolRestriction): () => void +register(definition: ToolDefinition): () => Promise | void +restrict(filter: ToolRestriction): () => Promise | void visible(scope?: ScopeKey): ToolDefinition[] get(name: string, scope?: ScopeKey): ToolDefinition | undefined schemas(scope?: ScopeKey): ToolSchema[] diff --git a/packages/bash/tool-bash/tests/tools.spec.ts b/packages/bash/tool-bash/tests/tools.spec.ts index 7d4b34f74f..6299aea7d3 100644 --- a/packages/bash/tool-bash/tests/tools.spec.ts +++ b/packages/bash/tool-bash/tests/tools.spec.ts @@ -35,7 +35,7 @@ async function setup() { * The registration disposer is tracked so {@link unregisterFakeAgents} can drop * it (simulating the owning session disconnecting before a task completes). */ -const fakeAgentDisposers = new Map void)[]>() +const fakeAgentDisposers = new Map Promise | void)[]>() function registerFakeAgent(ctx: Context, sessionId: string, inject: (...args: unknown[]) => void): Agent { // The registry KEY (agent.id) is deliberately DIFFERENT from the session // token (session.header.id) — a config agent has `agentId !== sessionId`. The @@ -53,7 +53,7 @@ function registerFakeAgent(ctx: Context, sessionId: string, inject: (...args: un /** Unregister every fake agent in this ctx (simulate the owning session disconnecting). */ function unregisterFakeAgents(ctx: Context): void { - for (const dispose of fakeAgentDisposers.get(ctx) ?? []) dispose() + for (const dispose of fakeAgentDisposers.get(ctx) ?? []) void dispose() fakeAgentDisposers.delete(ctx) } diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index e0668ef761..5c7b723739 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -10,7 +10,7 @@ Tracks live agents so UI, hook, and orchestrator plugins can find them without i The scoped-registration surface: `Agent.ctx` is the agent's scope context (`dsh-scope`, key = the agent) — register tools/sections/variables/listeners through it for that agent alone, all unwound on disposal. `agentEvents(ctx, agent)` is the fused dispatcher every agent-subject event goes through (carrier + injected subject in one move); `assembleContextFor(agent)` builds the per-agent assembly context (`agent` + `scope` together). `CreateAgentOptions.setup(agentCtx)` composes a child's scoped world at creation — setup registers, it never drives. -- `ctx.agents.register(agent: Agent): () => void` — record an **already-constructed** agent. Disposed with the calling fiber. +- `ctx.agents.register(agent: Agent): () => Promise | void` — record an **already-constructed** agent. Disposed with the calling fiber. - `ctx.agents.get(id: AgentId): Agent | undefined` - `ctx.agents.list(): Agent[]` @@ -18,7 +18,7 @@ The scoped-registration surface: `Agent.ctx` is the agent's scope context (`dsh- Agent *creation* is provided by whichever plugin implements `AgentFactory` (phase 1: `dsh-agent-loop`), registered via `setFactory`. This keeps creation on the `dsh-agent` interface so consumers (UI, the ACP bridge) program against `ctx.agents` without depending on the concrete loop package. -- `ctx.agents.setFactory(factory: AgentFactory): () => void` — register the creation factory (the loop calls this on construction). Throws on a second factory; the slot clears on dispose. +- `ctx.agents.setFactory(factory: AgentFactory): () => Promise | void` — register the creation factory (the loop calls this on construction). Throws on a second factory; the slot clears on dispose. - `ctx.agents.create(options: CreateAgentOptions): AgentHandle` — construct, start, AND register a new agent on a caller-supplied `sessionId` (with optional `meta.cwd`/`meta.parentSession`/`meta.seedLength` and optional `seed` events for forked children). Distinct from `register` (which only records). Throws if no factory is registered. - `ctx.agents.resume(options: ResumeAgentOptions): Promise` — load a persisted session ([session persistence](../../../docs/rfc/implemented/architecture/2026-06-14-session-persistence.md)) and resume an agent on it. Async; rejects if no factory is registered, or if the factory finds session persistence unconfigured. diff --git a/packages/core/agent/src/index.ts b/packages/core/agent/src/index.ts index 3821acd442..588a3c8ee1 100644 --- a/packages/core/agent/src/index.ts +++ b/packages/core/agent/src/index.ts @@ -162,15 +162,21 @@ export class AgentRegistry extends Service { * effect-scoped). Throws if a factory is already registered. Returns the * disposer; on dispose the factory slot is cleared. * @param factory - the loop-owned factory {@link create}/{@link resume} delegate to. - * @returns the disposer that clears the factory slot. + * @returns the disposer that clears the factory slot. The exact + * Cordis effect disposer (single-shot): composite (generator) effects may + * yield it directly — exact identity nests the teardown in order. */ - setFactory(factory: AgentFactory): () => void { + setFactory(factory: AgentFactory): () => Promise | void { const dispose = this.ctx.effect(() => { if (this.factory !== undefined) throw new Error('an agent factory is already registered') this.factory = factory return () => { this.factory = undefined } }, 'agents.setFactory()') - return () => void dispose() + // The exact cordis effect disposer (the agents.register() convention): a + // caller's composite effect can yield it for in-order teardown; the + // loop's constructor effect returns it directly, identity-nesting the + // registration under that effect. + return dispose } /** diff --git a/packages/core/agent/tests/agent.spec.ts b/packages/core/agent/tests/agent.spec.ts index 43b4752f1b..08623549ec 100644 --- a/packages/core/agent/tests/agent.spec.ts +++ b/packages/core/agent/tests/agent.spec.ts @@ -37,7 +37,7 @@ describe('AgentRegistry', () => { expect(ctx.agents.get(AgentId('a1'))).toBe(agent) expect(ctx.agents.list()).toEqual([agent]) - dispose() + await dispose() expect(disposed).toEqual(['a1']) expect(ctx.agents.get(AgentId('a1'))).toBeUndefined() }) @@ -74,7 +74,7 @@ describe('AgentRegistry', () => { // tracked exactly once (the duplicate-id check is not wedged). const dispose = ctx.agents.register(stubAgent('main')) expect(ctx.agents.list().map(a => a.id)).toEqual(['main']) - dispose() + await dispose() expect(ctx.agents.get(AgentId('main'))).toBeUndefined() }) }) @@ -128,7 +128,7 @@ describe('AgentRegistry factory seam', () => { it('disposing the setFactory fiber clears the factory (HMR safety)', async () => { const ctx = new Context() await ctx.plugin(AgentRegistry) - let dispose!: () => void + let dispose!: () => Promise | void const fiber = await ctx.plugin(Object.assign((inner: Context) => { dispose = inner.agents.setFactory(stubFactory().factory) }, { inject: ['agents'] })) diff --git a/packages/core/system-prompt/README.md b/packages/core/system-prompt/README.md index b890ad3cd5..bf8c8bc4cc 100644 --- a/packages/core/system-prompt/README.md +++ b/packages/core/system-prompt/README.md @@ -13,9 +13,9 @@ System prompt assembly registry. Plugins contribute ordered text sections, tool- ### Public API -- `ctx.systemPrompt.section(section: PromptSection): () => void` Contribute a section. The layer is the CALLING context's scope: `agent.ctx` contributes to that agent alone, SHADOWING a same-named global section there (the per-agent persona mechanism — a scoped `deployment:persona`). Duplicate names within one layer throw. Disposed with the calling fiber. -- `ctx.systemPrompt.tools(provider: (context: AssembleContext) => ToolProviderResult): () => void` Contribute tool schemas, evaluated at each assembly with that assembly's context. `ToolProviderResult` = `{ schemas, knownNames? }`: `schemas` is the post-restriction visible set for `context.scope`; `knownNames` (defaulting to the schemas' names) is the pre-restriction universe `toolOrder` validates against. A provider must not return a schema named `TOOL_ORDER_REST`. Scoped providers are consulted only for their scope's assemblies. Disposed with the calling fiber. -- `ctx.systemPrompt.variable(name: string, provider: (context) => string | undefined): () => void` Contribute a prompt variable, referenced from section text as `{{name}}`. Scoped variables (via `agent.ctx`) shadow a same-named global for that agent. Duplicate-in-layer or unreferenceable names throw; `undefined` means "no value for this assembly". Disposed with the calling fiber. +- `ctx.systemPrompt.section(section: PromptSection): () => Promise | void` Contribute a section. The layer is the CALLING context's scope: `agent.ctx` contributes to that agent alone, SHADOWING a same-named global section there (the per-agent persona mechanism — a scoped `deployment:persona`). Duplicate names within one layer throw. Disposed with the calling fiber. +- `ctx.systemPrompt.tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void` Contribute tool schemas, evaluated at each assembly with that assembly's context. `ToolProviderResult` = `{ schemas, knownNames? }`: `schemas` is the post-restriction visible set for `context.scope`; `knownNames` (defaulting to the schemas' names) is the pre-restriction universe `toolOrder` validates against. A provider must not return a schema named `TOOL_ORDER_REST`. Scoped providers are consulted only for their scope's assemblies. Disposed with the calling fiber. +- `ctx.systemPrompt.variable(name: string, provider: (context) => string | undefined): () => Promise | void` Contribute a prompt variable, referenced from section text as `{{name}}`. Scoped variables (via `agent.ctx`) shadow a same-named global for that agent. Duplicate-in-layer or unreferenceable names throw; `undefined` means "no value for this assembly". Disposed with the calling fiber. - `ctx.systemPrompt.assemble(context?: AssembleContext): Promise` Assemble the prompt for one caller: the global layer merged with `context.scope`'s layer (scoped shadows global). Runs through the `system-prompt/assemble` waterfall (scope-filtered by `context.scope`). Rejects when a configured `toolOrder` names a tool outside the providers' `knownNames` universe (a restricted-away KNOWN tool is a normal absence), or when a provider returns the reserved rest-entry name. ### Events diff --git a/packages/core/system-prompt/src/index.ts b/packages/core/system-prompt/src/index.ts index 8fa2daf3b0..f89370447f 100644 --- a/packages/core/system-prompt/src/index.ts +++ b/packages/core/system-prompt/src/index.ts @@ -389,9 +389,11 @@ export class SystemPrompt extends Service { * alternative). Removed when the calling fiber is disposed. Emits * `system-prompt/change` on register/unregister. * @param section - the section to contribute (name, order, text or provider). - * @returns the disposer that removes the section. + * @returns the disposer that removes the section. The exact + * Cordis effect disposer (single-shot): composite (generator) effects may + * yield it directly — exact identity nests the teardown in order. */ - section(section: PromptSection): () => void { + section(section: PromptSection): () => Promise | void { const scope = scopeOf(this.ctx) const dispose = this.ctx.effect(function* (this: SystemPrompt) { const layer = scope === undefined @@ -420,9 +422,13 @@ export class SystemPrompt extends Service { } this.ctx.emit('system-prompt/change') }.bind(this), 'systemPrompt.section()') - // ctx.effect's disposer returns Promise; our disposer API is - // synchronous fire-and-forget — discard the (always-resolved) promise. - return () => void dispose() + // The EXACT cordis effect disposer, not a wrapper: a composite (generator) + // effect that owns a teardown ORDER must be able to yield THIS function — + // cordis nests a disposer out of the fiber's concurrent sibling list by + // exact function identity, so a wrapper would silently break the nesting + // (the agents.register() lesson). Fire-and-forget callers may still + // discard the (always-resolved) promise. + return dispose } /** @@ -437,9 +443,11 @@ export class SystemPrompt extends Service { * {@link Config.toolOrder}'s rest entry and rejects the assembly. Emits * `system-prompt/change`. * @param provider - evaluated at every {@link assemble} for fresh schemas. - * @returns the disposer that removes the provider. + * @returns the disposer that removes the provider. The exact + * Cordis effect disposer (single-shot): composite (generator) effects may + * yield it directly — exact identity nests the teardown in order. */ - tools(provider: (context: AssembleContext) => ToolProviderResult): () => void { + tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void { const scope = scopeOf(this.ctx) const dispose = this.ctx.effect(function* (this: SystemPrompt) { const layer = scope === undefined @@ -460,9 +468,13 @@ export class SystemPrompt extends Service { } this.ctx.emit('system-prompt/change') }.bind(this), 'systemPrompt.tools()') - // ctx.effect's disposer returns Promise; our disposer API is - // synchronous fire-and-forget — discard the (always-resolved) promise. - return () => void dispose() + // The EXACT cordis effect disposer, not a wrapper: a composite (generator) + // effect that owns a teardown ORDER must be able to yield THIS function — + // cordis nests a disposer out of the fiber's concurrent sibling list by + // exact function identity, so a wrapper would silently break the nesting + // (the agents.register() lesson). Fire-and-forget callers may still + // discard the (always-resolved) promise. + return dispose } /** @@ -479,9 +491,11 @@ export class SystemPrompt extends Service { * emits `system-prompt/change` on register/unregister. * @param name - the reference name (matches `[a-z][a-z0-9_]*`). * @param provider - evaluated at every {@link assemble} for the value. - * @returns the disposer that removes the variable. + * @returns the disposer that removes the variable. The exact + * Cordis effect disposer (single-shot): composite (generator) effects may + * yield it directly — exact identity nests the teardown in order. */ - variable(name: string, provider: (context: AssembleContext) => string | undefined): () => void { + variable(name: string, provider: (context: AssembleContext) => string | undefined): () => Promise | void { const scope = scopeOf(this.ctx) const dispose = this.ctx.effect(function* (this: SystemPrompt) { if (!VARIABLE_NAME.test(name)) { @@ -508,9 +522,13 @@ export class SystemPrompt extends Service { } this.ctx.emit('system-prompt/change') }.bind(this), 'systemPrompt.variable()') - // ctx.effect's disposer returns Promise; our disposer API is - // synchronous fire-and-forget — discard the (always-resolved) promise. - return () => void dispose() + // The EXACT cordis effect disposer, not a wrapper: a composite (generator) + // effect that owns a teardown ORDER must be able to yield THIS function — + // cordis nests a disposer out of the fiber's concurrent sibling list by + // exact function identity, so a wrapper would silently break the nesting + // (the agents.register() lesson). Fire-and-forget callers may still + // discard the (always-resolved) promise. + return dispose } /** diff --git a/packages/core/system-prompt/tests/scoped.spec.ts b/packages/core/system-prompt/tests/scoped.spec.ts index 99e6b1c113..729ec52b1c 100644 --- a/packages/core/system-prompt/tests/scoped.spec.ts +++ b/packages/core/system-prompt/tests/scoped.spec.ts @@ -104,7 +104,7 @@ describe('scoped tool providers and toolOrder × restriction', () => { const ctx = await mount() const scope = await mintScope(ctx, 'child') const dispose = scope.ctx.systemPrompt.tools(() => ({ schemas: [schema('scoped_tool')] })) - dispose() + await dispose() const after = await ctx.systemPrompt.assemble({ scope: scopeKeyOf(scope) }) expect(after.tools.map(t => t.name)).toEqual([]) // Re-registering through the same scope starts a fresh layer. diff --git a/packages/core/system-prompt/tests/system-prompt.spec.ts b/packages/core/system-prompt/tests/system-prompt.spec.ts index 560a640643..3d4cb9d02c 100644 --- a/packages/core/system-prompt/tests/system-prompt.spec.ts +++ b/packages/core/system-prompt/tests/system-prompt.spec.ts @@ -247,7 +247,7 @@ describe('SystemPrompt', () => { // registration emits change expect(changeCount).toBe(1) - dispose() + await dispose() // disposal emits change again expect(changeCount).toBe(2) }) @@ -272,7 +272,7 @@ describe('SystemPrompt', () => { const dispose = ctx.systemPrompt.section({ name: 'direct', order: 0, text: 'direct section' }) expect(contributed(await ctx.systemPrompt.assemble())).toHaveLength(1) - dispose() + await dispose() expect(contributed(await ctx.systemPrompt.assemble())).toHaveLength(0) }) @@ -283,7 +283,7 @@ describe('SystemPrompt', () => { const dispose = ctx.systemPrompt.tools(() => ({ schemas: [{ name: 'direct-tool', description: '', parameters: {} }] })) expect((await ctx.systemPrompt.assemble()).tools).toHaveLength(1) - dispose() + await dispose() expect((await ctx.systemPrompt.assemble()).tools).toHaveLength(0) }) @@ -301,7 +301,7 @@ describe('SystemPrompt', () => { // A provider returning undefined records "registered but no value here". expect((await ctx.systemPrompt.assemble()).variables).toEqual({ who: undefined }) - dispose() + await dispose() expect(changeCount).toBe(2) expect((await ctx.systemPrompt.assemble()).variables).toEqual({}) }) diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index b42087b5d6..e5e953bc84 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -6,8 +6,8 @@ Tool registry and execution pipeline. Tool plugins register their schemas and ex ### Public API -- `ctx.tools.register(definition: ToolDefinition): () => void` Register a tool. The layer is the CALLING context's scope (`dsh-scope`): a plain plugin context registers globally; an agent's `agent.ctx` registers for that agent alone, SHADOWING a same-named global tool there (per-agent tool variants). Duplicate names within one layer throw. Disposed with the calling fiber (= the agent, for scoped registrations). -- `ctx.tools.restrict(filter: ToolRestriction): () => void` Scoped-only (throws on a plain context): mask the GLOBAL tool surface for the calling agent — `allow` keeps only the listed tools, `deny` removes them; multiple restrictions intersect; scoped registrations bypass restriction as explicit grants. Snapshot-at-registration, loud unknown-name validation, `restrict({})` rejects (the materialized-empty-config trap). +- `ctx.tools.register(definition: ToolDefinition): () => Promise | void` Register a tool. The layer is the CALLING context's scope (`dsh-scope`): a plain plugin context registers globally; an agent's `agent.ctx` registers for that agent alone, SHADOWING a same-named global tool there (per-agent tool variants). Duplicate names within one layer throw. Disposed with the calling fiber (= the agent, for scoped registrations). +- `ctx.tools.restrict(filter: ToolRestriction): () => Promise | void` Scoped-only (throws on a plain context): mask the GLOBAL tool surface for the calling agent — `allow` keeps only the listed tools, `deny` removes them; multiple restrictions intersect; scoped registrations bypass restriction as explicit grants. Snapshot-at-registration, loud unknown-name validation, `restrict({})` rejects (the materialized-empty-config trap). - `ctx.tools.get(name: string, scope?: ScopeKey): ToolDefinition | undefined` Resolution as one scope sees it (shadowing applied; a restricted-away global reads as absent) — presenters pass the calling agent so the card matches what executed. - `ctx.tools.visible(scope?: ScopeKey): ToolDefinition[]` THE visibility function — restricted global layer ∪ the scope's own layer — feeding prompt assembly, `get`, and `execute`, so what the model sees and what dispatches can never disagree. - `ctx.tools.knownNames(scope?: ScopeKey): string[]` The PRE-restriction name universe configuration (`toolOrder`, `restrict`) validates against: a typo fails loud while a restricted-away tool stays a normal absence. diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index cfbeffbd57..d449fb7801 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -344,9 +344,11 @@ export class ToolRegistry extends Service { * Emits `tools/change` on register/unregister. * @param definition - the tool's schema plus its execute (and optional * presentation) functions. - * @returns the disposer that unregisters the tool. + * @returns the disposer that unregisters the tool. The exact + * Cordis effect disposer (single-shot): composite (generator) effects may + * yield it directly — exact identity nests the teardown in order. */ - register(definition: ToolDefinition): () => void { + register(definition: ToolDefinition): () => Promise | void { const scope = scopeOf(this.ctx) const dispose = this.ctx.effect(function* (this: ToolRegistry) { const layer = scope === undefined ? this.global : this.layerFor(scope) @@ -370,9 +372,13 @@ export class ToolRegistry extends Service { } this.ctx.emit('tools/change') }.bind(this), 'tools.register()') - // ctx.effect's disposer returns Promise; our disposer API is - // synchronous fire-and-forget — discard the (always-resolved) promise. - return () => void dispose() + // The EXACT cordis effect disposer, not a wrapper: a composite (generator) + // effect that owns a teardown ORDER must be able to yield THIS function — + // cordis nests a disposer out of the fiber's concurrent sibling list by + // exact function identity, so a wrapper would silently break the nesting + // (the agents.register() lesson). Fire-and-forget callers may still + // discard the (always-resolved) promise. + return dispose } /** @@ -389,9 +395,11 @@ export class ToolRegistry extends Service { * Scoped registrations bypass restrictions (explicit grants win). Disposed * with the calling fiber (revocable independently); emits `tools/change`. * @param filter - global-surface mask: `allow` (keep only) and/or `deny` (remove). - * @returns the disposer that lifts this restriction. + * @returns the disposer that lifts this restriction. The exact + * Cordis effect disposer (single-shot): composite (generator) effects may + * yield it directly — exact identity nests the teardown in order. */ - restrict(filter: ToolRestriction): () => void { + restrict(filter: ToolRestriction): () => Promise | void { const scope = scopeOf(this.ctx) if (scope === undefined) { throw new Error('tools.restrict() requires a scoped context (agent.ctx): a context-global restriction would mask every agent — deny the tool for the intended agent instead') @@ -422,9 +430,13 @@ export class ToolRegistry extends Service { } this.ctx.emit('tools/change') }.bind(this), 'tools.restrict()') - // ctx.effect's disposer returns Promise; our disposer API is - // synchronous fire-and-forget — discard the (always-resolved) promise. - return () => void dispose() + // The EXACT cordis effect disposer, not a wrapper: a composite (generator) + // effect that owns a teardown ORDER must be able to yield THIS function — + // cordis nests a disposer out of the fiber's concurrent sibling list by + // exact function identity, so a wrapper would silently break the nesting + // (the agents.register() lesson). Fire-and-forget callers may still + // discard the (always-resolved) promise. + return dispose } /** The (created-on-demand) scoped layer for `scope`. */ diff --git a/packages/core/tools/tests/scoped.spec.ts b/packages/core/tools/tests/scoped.spec.ts index d7c0f020d0..86bdd1414a 100644 --- a/packages/core/tools/tests/scoped.spec.ts +++ b/packages/core/tools/tests/scoped.spec.ts @@ -125,7 +125,7 @@ describe('restrict()', () => { const liftAllow = scope.ctx.tools.restrict({ allow: ['a', 'b'] }) scope.ctx.tools.restrict({ deny: ['b'] }) expect(ctx.tools.schemas(key).map(t => t.name)).toEqual(['a']) - liftAllow() + await liftAllow() // The deny remains after the allow-list is lifted. expect(ctx.tools.schemas(key).map(t => t.name).sort()).toEqual(['a', 'c']) }) diff --git a/packages/core/tools/tests/tools.spec.ts b/packages/core/tools/tests/tools.spec.ts index 09158b8398..8892cadd1a 100644 --- a/packages/core/tools/tests/tools.spec.ts +++ b/packages/core/tools/tests/tools.spec.ts @@ -358,7 +358,7 @@ describe('ToolRegistry', () => { const dispose = ctx.tools.register({ ...echoTool, name: 'disposable' }) expect(ctx.tools.schemas().map(t => t.name)).toEqual(['echo', 'disposable']) - dispose() + await dispose() expect(ctx.tools.schemas().map(t => t.name)).toEqual(['echo']) }) @@ -379,9 +379,38 @@ describe('ToolRegistry', () => { // exposed exactly once (the duplicate-name check is not wedged). const dispose = ctx.tools.register(echoTool) expect(ctx.tools.schemas().map(t => t.name)).toEqual(['echo']) - dispose() + await dispose() expect(ctx.tools.get('echo')).toBeUndefined() }) + + it('register() returns the EXACT effect disposer: a composite yield nests the teardown in order', async () => { + // The registry-disposer convention (set by agents.register): the returned + // function IS the cordis effect disposer, so a composite (generator) + // effect that yields it has the unregistration run at that yield's LIFO + // position on owner unload. A wrapper would leave the inner effect + // disposing as a CONCURRENT SIBLING of the composite; the async probe + // below (disposed first, LIFO) yields the event loop exactly like the + // agent factory's stop-and-drain link, and a sibling unregistration fires + // in that window — the probe would observe the tool already gone. Pins + // the convention for the whole register-method family (system-prompt + // registrars, registerProvider, setFactory share the same return). + const ctx = await setup() + const order: string[] = [] + const fiber = await ctx.plugin(Object.assign((inner: Context) => { + inner.effect(function* () { + yield () => { order.push('disposed-last') } + yield inner.tools.register({ ...echoTool, name: 'nested' }) + order.push('registered') + yield async () => { + await new Promise(resolve => setTimeout(resolve, 0)) + order.push(inner.tools.get('nested') ? 'first: still registered' : 'first: already gone') + } + }) + }, { inject: ['tools'] })) + await fiber.dispose() + expect(order).toEqual(['registered', 'first: still registered', 'disposed-last']) + expect(ctx.tools.get('nested')).toBeUndefined() + }) }) describe('defineTool / schema DSL', () => { diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index e93faed4f1..3a024c7e66 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -544,7 +544,7 @@ describe('in-process structured output', () => { const run = ctx.subagents.start('spawn', structuredRequest(parent)) // A backend hot-reload mid-run must not unregister the capture tool out // from under the live child: the registration rides the CHILD's fiber. - disposeProvider() + await disposeProvider() const result = await run.result expect(result.structured).toEqual({ answer: 4 }) const child = ctx.agents.get(run.id)! diff --git a/packages/subagent/subagent/src/index.ts b/packages/subagent/subagent/src/index.ts index 850958048a..0a7cea32e1 100644 --- a/packages/subagent/subagent/src/index.ts +++ b/packages/subagent/subagent/src/index.ts @@ -164,9 +164,11 @@ export class SubagentService extends Service { * the registration and `subagent/provider-removed` on unregistration, so * consumers can mirror provider lifecycle instead of assuming load order. * @param provider - the provider; its `name` is the registry key. - * @returns the disposer that unregisters the provider. + * @returns the disposer that unregisters the provider. The exact + * Cordis effect disposer (single-shot): composite (generator) effects may + * yield it directly — exact identity nests the teardown in order. */ - registerProvider(provider: SubagentProvider): () => void { + registerProvider(provider: SubagentProvider): () => Promise | void { const dispose = this.ctx.effect(function* (this: SubagentService) { if (this.providers.has(provider.name)) { throw new SubagentError(`a subagent provider named "${provider.name}" is already registered`, 'DUPLICATE_PROVIDER') @@ -184,9 +186,13 @@ export class SubagentService extends Service { } this.ctx.emit('subagent/provider-added', provider) }.bind(this), 'subagents.registerProvider()') - // ctx.effect's disposer returns Promise; our disposer API is - // synchronous fire-and-forget — discard the (always-resolved) promise. - return () => void dispose() + // The EXACT cordis effect disposer, not a wrapper: a composite (generator) + // effect that owns a teardown ORDER must be able to yield THIS function — + // cordis nests a disposer out of the fiber's concurrent sibling list by + // exact function identity, so a wrapper would silently break the nesting + // (the agents.register() lesson). Fire-and-forget callers may still + // discard the (always-resolved) promise. + return dispose } /** diff --git a/packages/subagent/subagent/tests/service.spec.ts b/packages/subagent/subagent/tests/service.spec.ts index 66c3e80042..afacd48a9b 100644 --- a/packages/subagent/subagent/tests/service.spec.ts +++ b/packages/subagent/subagent/tests/service.spec.ts @@ -57,7 +57,7 @@ describe('SubagentService', () => { expect(added).toEqual(['alpha']) expect(removed).toEqual([]) - dispose() + await dispose() expect(removed).toEqual(['alpha']) }) @@ -92,7 +92,7 @@ describe('SubagentService', () => { ctx.on('subagent/provider-removed', name => void heard.push(name)) const dispose = ctx.subagents.registerProvider(new StubProvider('alpha')) - expect(() => { dispose() }).not.toThrow() + expect(() => void dispose()).not.toThrow() expect(heard).toEqual(['alpha']) // the listener AFTER the thrower still ran expect(ctx.subagents.getProvider('alpha')).toBeUndefined() // teardown reached quiescence expect(warnings.some(w => w.includes('boom removed listener'))).toBe(true) @@ -167,12 +167,12 @@ describe('SubagentService', () => { const dispose = ctx.subagents.registerProvider(new StubProvider('reuse')) expect(ctx.subagents.list()).toEqual(['reuse']) - dispose() + await dispose() expect(ctx.subagents.list()).toEqual([]) const disposeAgain = ctx.subagents.registerProvider(new StubProvider('reuse')) expect(ctx.subagents.list()).toEqual(['reuse']) - disposeAgain() + await disposeAgain() expect(ctx.subagents.list()).toEqual([]) }) diff --git a/packages/subagent/tool-subagent/src/index.ts b/packages/subagent/tool-subagent/src/index.ts index 31d6dce113..4f2a1bc33d 100644 --- a/packages/subagent/tool-subagent/src/index.ts +++ b/packages/subagent/tool-subagent/src/index.ts @@ -202,7 +202,7 @@ export function apply(ctx: Context, config: Config): void { // available — deriving the wording from THAT provider — and unregister it // when the provider goes away, so the description can never outlive or // predate the provider it describes. - let disposeTool: (() => void) | undefined + let disposeTool: (() => Promise | void) | undefined const mount = (provider: SubagentProvider): void => { const wording = providerWording(provider.inheritsParentContext) disposeTool = ctx.tools.register(defineTool({ @@ -284,7 +284,7 @@ export function apply(ctx: Context, config: Config): void { }) ctx.on('subagent/provider-removed', (name) => { if (name !== config.provider || disposeTool === undefined) return - disposeTool() + void disposeTool() disposeTool = undefined }) const present = ctx.subagents.getProvider(config.provider) From fc6db791f18a008db44345101e47d095e8e4270b Mon Sep 17 00:00:00 2001 From: Ziya <199893125+ZiyaZhang@users.noreply.github.com> Date: Wed, 8 Jul 2026 20:45:05 -0700 Subject: [PATCH 115/232] refactor(compact): extract the shared transcript renderer into dsh-compact Move compact-basic's private _extractText/_blocksToText into the interface package as renderTranscript/renderContentBlocks, so the summarize path and a future recall read path render one span identically. Byte-identical output vs the private helpers it replaces; compact-basic delegates. --- docs/cordis-catalog/services.md | 2 +- packages/compact/compact-basic/src/index.ts | 99 +------------ .../compact-basic/tests/compact-basic.spec.ts | 2 +- packages/compact/compact/README.md | 2 +- packages/compact/compact/src/index.ts | 1 + packages/compact/compact/src/render.ts | 118 +++++++++++++++ packages/compact/compact/tests/render.spec.ts | 138 ++++++++++++++++++ 7 files changed, 262 insertions(+), 100 deletions(-) create mode 100644 packages/compact/compact/src/render.ts create mode 100644 packages/compact/compact/tests/render.spec.ts diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 26126c4481..53251518b4 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -102,7 +102,7 @@ abstract compactIfNeeded( agent: CompactAgentContext, fullSystemPrompt: string, abstract compactRegion( session: Session, start: number, end: number, agent: CompactAgentContext, signal?: AbortSignal, ): Promise ``` -Source: [`packages/compact/compact/src/index.ts:63`](../../packages/compact/compact/src/index.ts) +Source: [`packages/compact/compact/src/index.ts:64`](../../packages/compact/compact/src/index.ts) ## `ctx.fs` — `FileSystem` (abstract seam) diff --git a/packages/compact/compact-basic/src/index.ts b/packages/compact/compact-basic/src/index.ts index 03f7c9ab4b..3916441402 100644 --- a/packages/compact/compact-basic/src/index.ts +++ b/packages/compact/compact-basic/src/index.ts @@ -30,7 +30,7 @@ */ import { Context } from 'cordis' -import { CompactService } from '@deepseek-ai/dsh-compact' +import { CompactService, renderTranscript } from '@deepseek-ai/dsh-compact' import type { CompactionResult } from '@deepseek-ai/dsh-compact' import { BlockAssembler } from '@deepseek-ai/dsh-llm' import type { ContentBlock, FinishReason, GenerateOptions, Message } from '@deepseek-ai/dsh-llm' @@ -483,7 +483,7 @@ export class BasicCompactService extends CompactService { try { // --- Extract text and summarize --- - const text = this._extractText(session, shadowedSeqs) + const text = renderTranscript(session.events, shadowedSeqs) const { summary, model, maxTokens } = await this.summarize(text, agent, signal) // Estimate token count of the shadowed content for provenance. @@ -679,101 +679,6 @@ export class BasicCompactService extends CompactService { } return null } - - /** - * Extract plain-text conversation from a set of surface node seqs, for - * feeding into the summarization model. Walks the seqs in the order given - * (surface order, as `compactRegion` slices the surface-node list) so the - * summary follows the conversation as the model sees it — which, after a - * `replace`, is NOT ascending log-seq order (a high-seq summary node heads the - * surface before older retained lower-seq nodes). - */ - private _extractText(session: Session, seqs: number[]): string { - const lines: string[] = [] - - // Walk seqs in the order given (surface order, as compactRegion slices the - // surface-node list) — NOT ascending log-seq order. After a replace the - // summary node carries a fresh high seq while sitting at the head of the - // surface before older retained lower-seq nodes, so a log-order scan would - // feed the transcript out of order and break the checkpoint-merge prompt. - for (const seq of seqs) { - const event = session.events[seq] - /* v8 ignore next -- seq is a surface-node seq, always a valid log index by construction */ - if (!event) continue - - switch (event.type) { - case 'user/message': { - const text = this._blocksToText(event.data.content) - if (text) lines.push(`User: ${text}`) - break - } - case 'assistant/message': { - const text = this._blocksToText(event.data.content) - if (text) lines.push(`Assistant: ${text}`) - break - } - case 'tool/result': { - const text = this._blocksToText(event.data.content) - const label = event.data.isError ? 'Tool error' : 'Tool result' - if (text) lines.push(`${label} (call ${event.data.callId}): ${text}`) - break - } - case 'context/message': { - const text = this._blocksToText(event.data.content) - if (text) lines.push(`[Context: ${text}]`) - break - } - case 'steering/message': { - const text = this._blocksToText(event.data.content) - if (text) lines.push(`[Steering: ${text}]`) - break - } - // SessionEventMap is merge-extensible — unknown types are - // non-message events that carry no extractable text. - /* v8 ignore next 2 -- seqs only name surface nodes, always one of the 5 handled SurfaceEventTypes; unreachable */ - default: - break - } - } - - return lines.join('\n\n') - } - - /** - * Render content blocks to a single plain-text string for the summarization - * prompt. Text and reasoning contribute their text; every other block type - * contributes a type-tagged placeholder (`[tool-call: name(args)]`, - * `[tool-result: …]`, …) so the summarizer is told what non-text content - * existed in the region rather than silently losing it. Blocks join with - * newlines; empty-text blocks contribute nothing. - */ - private _blocksToText(blocks: readonly ContentBlock[]): string { - const parts: string[] = [] - for (const block of blocks) { - switch (block.type) { - case 'text': - if (block.text) parts.push(block.text) - break - case 'reasoning': - if (block.text) parts.push(`[reasoning: ${block.text}]`) - break - case 'tool-call': - parts.push(`[tool-call: ${block.name}(${block.arguments})]`) - break - case 'tool-result': { - const inner = this._blocksToText(block.content) - parts.push(inner ? `[tool-result: ${inner}]` : '[tool-result]') - break - } - // ContentBlockMap is merge-extensible — render an unknown block as a - // bare type-tagged placeholder so a plugin-added block type is still - // signalled to the summarizer rather than dropped. - default: - parts.push(`[${(block as ContentBlock).type}]`) - } - } - return parts.join('\n') - } } export default BasicCompactService diff --git a/packages/compact/compact-basic/tests/compact-basic.spec.ts b/packages/compact/compact-basic/tests/compact-basic.spec.ts index 990d60190a..9cd61a95be 100644 --- a/packages/compact/compact-basic/tests/compact-basic.spec.ts +++ b/packages/compact/compact-basic/tests/compact-basic.spec.ts @@ -1278,7 +1278,7 @@ describe('BasicCompactService auto-compaction (agent/pre-step listener)', () => }) }) -describe('BasicCompactService._extractText branches', () => { +describe('BasicCompactService transcript rendering (delegated to dsh-compact)', () => { it('renders reasoning, context, and steering messages', async () => { const svc = createTestService() const s = new Session(SessionId('rich')) diff --git a/packages/compact/compact/README.md b/packages/compact/compact/README.md index 54bdcc7f4e..e908412d16 100644 --- a/packages/compact/compact/README.md +++ b/packages/compact/compact/README.md @@ -6,7 +6,7 @@ This package is the interface tier of the compaction capability, split so each c | Package | Role | |---|---| -| `@deepseek-ai/dsh-compact` (this) | the interface: abstract service + `compact/*` events + `CompactionResult` | +| `@deepseek-ai/dsh-compact` (this) | the interface: abstract service + `compact/*` events + `CompactionResult` + the shared transcript renderer (`renderTranscript`/`renderContentBlocks`) | | `@deepseek-ai/dsh-compact-basic` (deferred) | a backend: chars-per-token estimation (`charsPerToken`, default 4) + token-budget retention + `llm.stream()` summarization | | `@deepseek-ai/dsh-tool-compact` (deferred) | the model-facing `/compact` tool over `ctx.compact` | diff --git a/packages/compact/compact/src/index.ts b/packages/compact/compact/src/index.ts index cc190ccd87..931e8274cf 100644 --- a/packages/compact/compact/src/index.ts +++ b/packages/compact/compact/src/index.ts @@ -26,6 +26,7 @@ import type { Session } from '@deepseek-ai/dsh-session' import type { CompactionResult } from './types.ts' export type { CompactionResult } from './types.ts' +export { renderContentBlocks, renderTranscript } from './render.ts' /** Minimal agent context compaction needs without depending on the agent package. */ export interface CompactAgentContext { diff --git a/packages/compact/compact/src/render.ts b/packages/compact/compact/src/render.ts new file mode 100644 index 0000000000..6e977df007 --- /dev/null +++ b/packages/compact/compact/src/render.ts @@ -0,0 +1,118 @@ +/** + * Plain-text transcript rendering over session events: the shared projection + * used wherever a compaction-class consumer needs "what a model once saw" as + * readable text — a summarizer's input, or a recall tool's output. + * + * Extracted from the basic backend's private helpers so the summarize path and + * the recall read path render one span identically (two renderers would drift, + * and a recall reader would then see a different transcript than the one the + * summary was written from). Both functions are pure over their arguments: no + * session access beyond the provided events, no clock, no randomness — a + * rendered span is a pure function of the log, so replay reproduces it + * byte-identically. + * + * @module @deepseek-ai/dsh-compact/render + */ + +import type { ContentBlock } from '@deepseek-ai/dsh-llm' +import type { SessionEvent } from '@deepseek-ai/dsh-session' + +/** + * Render content blocks to a single plain-text string. Text and reasoning + * contribute their text (reasoning wrapped as `[reasoning: …]`); every other + * block type contributes a type-tagged placeholder (`[tool-call: name(args)]`, + * `[tool-result: …]`, …) so the reader is told what non-text content existed + * rather than silently losing it. A `tool-result` block recurses into its + * nested content (`[tool-result: ]`), falling back to a bare + * `[tool-result]` when the nested content renders to nothing. Blocks join + * with newlines; empty-text blocks contribute nothing. + * + * @param blocks - the content blocks to render. + * @returns the newline-joined plain-text rendering; empty string when nothing renders. + */ +export function renderContentBlocks(blocks: readonly ContentBlock[]): string { + const parts: string[] = [] + for (const block of blocks) { + switch (block.type) { + case 'text': + if (block.text) parts.push(block.text) + break + case 'reasoning': + if (block.text) parts.push(`[reasoning: ${block.text}]`) + break + case 'tool-call': + parts.push(`[tool-call: ${block.name}(${block.arguments})]`) + break + case 'tool-result': { + const inner = renderContentBlocks(block.content) + parts.push(inner ? `[tool-result: ${inner}]` : '[tool-result]') + break + } + // ContentBlockMap is merge-extensible — render an unknown block as a + // bare type-tagged placeholder so a plugin-added block type is still + // signalled to the reader rather than dropped. + default: + parts.push(`[${(block as ContentBlock).type}]`) + } + } + return parts.join('\n') +} + +/** + * Render a set of surface-node seqs as a `User:`/`Assistant:`/`Tool result:` + * transcript. Walks `seqs` in the order given — callers pass surface order + * (e.g. a `compactRegion` slice of the surface-node list), which after a + * `replace` is NOT ascending log-seq order (a high-seq summary node can sit at + * the head of the surface before older retained lower-seq nodes); a log-order + * scan would render the transcript out of order. + * + * Only the five surface (message-producing) event types render; a seq naming + * any other event type contributes nothing. `SessionEventMap` is + * merge-extensible, so unknown types are simply non-message events with no + * renderable text. + * + * @param events - the session log the seqs index into (`session.events`). + * @param seqs - the surface-node seqs to render, in surface order. + * @returns the transcript, entries joined by blank lines; empty string when nothing renders. + */ +export function renderTranscript(events: readonly SessionEvent[], seqs: readonly number[]): string { + const lines: string[] = [] + + for (const seq of seqs) { + const event = events[seq] + if (!event) continue + + switch (event.type) { + case 'user/message': { + const text = renderContentBlocks(event.data.content) + if (text) lines.push(`User: ${text}`) + break + } + case 'assistant/message': { + const text = renderContentBlocks(event.data.content) + if (text) lines.push(`Assistant: ${text}`) + break + } + case 'tool/result': { + const text = renderContentBlocks(event.data.content) + const label = event.data.isError ? 'Tool error' : 'Tool result' + if (text) lines.push(`${label} (call ${event.data.callId}): ${text}`) + break + } + case 'context/message': { + const text = renderContentBlocks(event.data.content) + if (text) lines.push(`[Context: ${text}]`) + break + } + case 'steering/message': { + const text = renderContentBlocks(event.data.content) + if (text) lines.push(`[Steering: ${text}]`) + break + } + default: + break + } + } + + return lines.join('\n\n') +} diff --git a/packages/compact/compact/tests/render.spec.ts b/packages/compact/compact/tests/render.spec.ts new file mode 100644 index 0000000000..1a22296565 --- /dev/null +++ b/packages/compact/compact/tests/render.spec.ts @@ -0,0 +1,138 @@ +import { describe, expect, it } from 'vitest' +import { renderContentBlocks, renderTranscript } from '@deepseek-ai/dsh-compact' +import { Session, SessionId } from '@deepseek-ai/dsh-session' +import type { ContentBlock } from '@deepseek-ai/dsh-llm' +import { CallId } from '@deepseek-ai/dsh-llm' + +function session(): Session { + return new Session(SessionId('render-spec')) +} + +describe('renderContentBlocks', () => { + it('renders text blocks verbatim and skips empty ones', () => { + expect(renderContentBlocks([ + { type: 'text', text: 'hello' }, + { type: 'text', text: '' }, + { type: 'text', text: 'world' }, + ])).toBe('hello\nworld') + }) + + it('wraps reasoning, skipping empty reasoning', () => { + expect(renderContentBlocks([ + { type: 'reasoning', text: 'think' }, + { type: 'reasoning', text: '' }, + ])).toBe('[reasoning: think]') + }) + + it('renders tool-call as a name(args) placeholder', () => { + expect(renderContentBlocks([ + { type: 'tool-call', id: CallId('c1'), name: 'read', arguments: '{"filePath":"a"}' }, + ])).toBe('[tool-call: read({"filePath":"a"})]') + }) + + it('renders tool-result with nested content, and bare when empty', () => { + expect(renderContentBlocks([ + { type: 'tool-result', toolCallId: CallId('c1'), content: [{ type: 'text', text: 'ok' }] }, + { type: 'tool-result', toolCallId: CallId('c2'), content: [] }, + ])).toBe('[tool-result: ok]\n[tool-result]') + }) + + it('renders an unknown (merge-extended) block type as a bare type tag', () => { + const unknown = { type: 'image', data: 'zzz' } as unknown as ContentBlock + expect(renderContentBlocks([unknown])).toBe('[image]') + }) + + it('returns the empty string for no blocks', () => { + expect(renderContentBlocks([])).toBe('') + }) +}) + +describe('renderTranscript', () => { + it('renders each surface event type with its label, in the seq order given', () => { + const s = session() + const user = s.append('user/message', { + content: [{ type: 'text', text: 'fix the bug' }], + source: { kind: 'user' }, + }, { surfaceOp: 'append' }) + const assistant = s.append('assistant/message', { + turn: 0, step: 0, + content: [{ type: 'text', text: 'looking' }], + }, { surfaceOp: 'append' }) + const result = s.append('tool/result', { + turn: 0, step: 0, callId: CallId('c1'), + content: [{ type: 'text', text: 'exit 0' }], + isError: false, + }, { surfaceOp: 'append' }) + const context = s.append('context/message', { + content: [{ type: 'text', text: 'file changed' }], + source: { kind: 'plugin', plugin: 'fs' }, + }, { surfaceOp: 'append' }) + const steering = s.append('steering/message', { + turn: 0, + content: [{ type: 'text', text: 'stop that' }], + source: { kind: 'user' }, + }, { surfaceOp: 'append' }) + + expect(renderTranscript(s.events, [user.seq, assistant.seq, result.seq, context.seq, steering.seq])).toBe([ + 'User: fix the bug', + 'Assistant: looking', + 'Tool result (call c1): exit 0', + '[Context: file changed]', + '[Steering: stop that]', + ].join('\n\n')) + }) + + it('labels an error tool result "Tool error"', () => { + const s = session() + const result = s.append('tool/result', { + turn: 0, step: 0, callId: CallId('c9'), + content: [{ type: 'text', text: 'boom' }], + isError: true, + }, { surfaceOp: 'append' }) + expect(renderTranscript(s.events, [result.seq])).toBe('Tool error (call c9): boom') + }) + + it('renders NON-log-order seqs in the order given (surface order after a replace)', () => { + const s = session() + const first = s.append('user/message', { + content: [{ type: 'text', text: 'first' }], + source: { kind: 'user' }, + }, { surfaceOp: 'append' }) + const second = s.append('user/message', { + content: [{ type: 'text', text: 'second' }], + source: { kind: 'user' }, + }, { surfaceOp: 'append' }) + expect(renderTranscript(s.events, [second.seq, first.seq])).toBe('User: second\n\nUser: first') + }) + + it('skips events that render to nothing, non-message events, and seqs with no event', () => { + const s = session() + const empty = s.append('user/message', { + content: [{ type: 'text', text: '' }], + source: { kind: 'user' }, + }, { surfaceOp: 'append' }) + const emptyAssistant = s.append('assistant/message', { + turn: 0, step: 0, + content: [{ type: 'text', text: '' }], + }, { surfaceOp: 'append' }) + const emptyResult = s.append('tool/result', { + turn: 0, step: 0, callId: CallId('c3'), + content: [{ type: 'text', text: '' }], + isError: false, + }, { surfaceOp: 'append' }) + const emptyContext = s.append('context/message', { + content: [{ type: 'text', text: '' }], + source: { kind: 'plugin', plugin: 'fs' }, + }, { surfaceOp: 'append' }) + const emptySteering = s.append('steering/message', { + turn: 0, + content: [{ type: 'text', text: '' }], + source: { kind: 'user' }, + }, { surfaceOp: 'append' }) + // A log-only (non-surface) event type: contributes nothing to a transcript. + const lock = s.append('compact/start', { turn: 0 }) + expect(renderTranscript(s.events, [ + empty.seq, emptyAssistant.seq, emptyResult.seq, emptyContext.seq, emptySteering.seq, lock.seq, 9999, + ])).toBe('') + }) +}) From c321819053c29468f79adb87dc66c7ff22f37668 Mon Sep 17 00:00:00 2001 From: pku-xht Date: Thu, 9 Jul 2026 13:42:03 +0800 Subject: [PATCH 116/232] rename: @deepseek-ai/dsh-subagent-process -> @deepseek-ai/dsh-subagent-subprocess MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The extracted library's name sat one edit away from @deepseek-ai/dsh-subagent-inprocess (process/inprocess), inviting a typo'd import to silently resolve to the wrong package. subagent-subprocess also reads as the deliberate counterpart to subagent-inprocess (in-process vs. subprocess), matching how the two shared drivers actually differ. Package directory, npm name, module doc, JSDoc module tags, test-file name and its temp-dir prefixes, the subagent-acp import and its Config/tsconfig/package.json references, root tsconfig.json/tsconfig.build.json/knip.json entries, and the packages/subagent group README all renamed together; regenerated docs/module-graph.md and docs/config-catalog.md. Pure rename — no behavior, export, or Config shape changed. --- docs/config-catalog.md | 2 +- docs/module-graph.md | 8 ++++---- knip.json | 2 +- packages/subagent/README.md | 4 ++-- packages/subagent/subagent-acp/README.md | 2 +- packages/subagent/subagent-acp/package.json | 4 ++-- packages/subagent/subagent-acp/src/run.ts | 2 +- .../subagent-acp/tests/subagent-acp.spec.ts | 2 +- packages/subagent/subagent-acp/tsconfig.json | 2 +- .../README.md | 4 ++-- .../package.json | 2 +- .../src/index.ts | 2 +- .../tests/subagent-subprocess.spec.ts} | 16 ++++++++-------- .../tsconfig.json | 0 pnpm-lock.yaml | 16 ++++++++-------- tsconfig.build.json | 2 +- tsconfig.json | 2 +- 17 files changed, 36 insertions(+), 36 deletions(-) rename packages/subagent/{subagent-process => subagent-subprocess}/README.md (86%) rename packages/subagent/{subagent-process => subagent-subprocess}/package.json (93%) rename packages/subagent/{subagent-process => subagent-subprocess}/src/index.ts (99%) rename packages/subagent/{subagent-process/tests/subagent-process.spec.ts => subagent-subprocess/tests/subagent-subprocess.spec.ts} (94%) rename packages/subagent/{subagent-process => subagent-subprocess}/tsconfig.json (100%) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 34cb543303..642a4d719a 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -884,4 +884,4 @@ Imported as libraries by other packages; a `cordis.yml` cannot load them. - `@deepseek-ai/dsh-brand` ([`packages/util/brand/src/index.ts`](../packages/util/brand/src/index.ts)) - `@deepseek-ai/dsh-hook-protocol` ([`packages/hooks/hook-protocol/src/index.ts`](../packages/hooks/hook-protocol/src/index.ts)) - `@deepseek-ai/dsh-subagent-inprocess` ([`packages/subagent/subagent-inprocess/src/index.ts`](../packages/subagent/subagent-inprocess/src/index.ts)) -- `@deepseek-ai/dsh-subagent-process` ([`packages/subagent/subagent-process/src/index.ts`](../packages/subagent/subagent-process/src/index.ts)) +- `@deepseek-ai/dsh-subagent-subprocess` ([`packages/subagent/subagent-subprocess/src/index.ts`](../packages/subagent/subagent-subprocess/src/index.ts)) diff --git a/docs/module-graph.md b/docs/module-graph.md index 57fb397e54..c0e64c1d36 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -43,8 +43,8 @@ flowchart TD pkg_subagent_acp["subagent-acp"] pkg_subagent_fork["subagent-fork"] pkg_subagent_inprocess["subagent-inprocess"] - pkg_subagent_process["subagent-process"] pkg_subagent_spawn["subagent-spawn"] + pkg_subagent_subprocess["subagent-subprocess"] pkg_tool_subagent["tool-subagent"] end subgraph group_web["packages/web"] @@ -179,7 +179,7 @@ flowchart TD pkg_subagent_acp --> pkg_agent pkg_subagent_acp --> pkg_llm pkg_subagent_acp --> pkg_subagent - pkg_subagent_acp --> pkg_subagent_process + pkg_subagent_acp --> pkg_subagent_subprocess pkg_subagent_inprocess --> pkg_agent pkg_subagent_inprocess --> pkg_llm pkg_subagent_inprocess --> pkg_session @@ -220,7 +220,7 @@ flowchart TD | Package | Group | Depends on | | --- | --- | --- | | [`brand`](../packages/util/brand) | `util` | — | -| [`subagent-process`](../packages/subagent/subagent-process) | `subagent` | — | +| [`subagent-subprocess`](../packages/subagent/subagent-subprocess) | `subagent` | — | | [`acp-snapshot`](../packages/support/acp-snapshot) | `support` | — | | [`app-boot`](../packages/ui/app-boot) | `ui` | — | | [`code-runtime`](../packages/code-runtime/code-runtime) | `code-runtime` | — | @@ -260,7 +260,7 @@ flowchart TD | [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools) | | [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | `guard` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools) | | [`agent-core`](../packages/core/agent-core) | `core` | [`agent`](../packages/core/agent), [`agent-loop`](../packages/core/agent-loop), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tool-bash`](../packages/bash/tool-bash), [`tools`](../packages/core/tools) | -| [`subagent-acp`](../packages/subagent/subagent-acp) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent), [`subagent-process`](../packages/subagent/subagent-process) | +| [`subagent-acp`](../packages/subagent/subagent-acp) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent), [`subagent-subprocess`](../packages/subagent/subagent-subprocess) | | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-subagent`](../packages/subagent/tool-subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent), [`tools`](../packages/core/tools) | | [`hooks-claude`](../packages/hooks/hooks-claude) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`tools`](../packages/core/tools) | diff --git a/knip.json b/knip.json index d4c44e9aa5..ecfd431c1c 100644 --- a/knip.json +++ b/knip.json @@ -70,7 +70,7 @@ "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts", "tests/mock-acp-server.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] }, - "packages/subagent/subagent-process": { + "packages/subagent/subagent-subprocess": { "entry": ["tests/**/*.spec.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"], "ignoreDependencies": ["cordis"] diff --git a/packages/subagent/README.md b/packages/subagent/README.md index 38c64d22a5..87930167e9 100644 --- a/packages/subagent/README.md +++ b/packages/subagent/README.md @@ -8,10 +8,10 @@ The subagent seam: an agent delegating work to a child agent. Like the [bash](.. | `subagent-inprocess/` | Shared in-process run driver (pure lib; registers nothing) | — | | `subagent-spawn/` | In-process backend: a fresh child agent | (registers on `ctx.subagents`) | | `subagent-fork/` | In-process backend: a child seeded with the parent's completed-turn prefix | (registers on `ctx.subagents`) | -| `subagent-process/` | Shared out-of-process machinery: env scrub, dispose ladder, isolated config dirs (pure lib; registers nothing) | — | +| `subagent-subprocess/` | Shared out-of-process machinery: env scrub, dispose ladder, isolated config dirs (pure lib; registers nothing) | — | | `subagent-acp/` | Out-of-process backend: a child agent in a spawned subprocess, driven over ACP | (registers on `ctx.subagents`) | | `tool-subagent/` | Model-facing `subagent` delegation tool over `ctx.subagents` | (registers on `ctx.tools`) | -The interface lives at `subagent/subagent/`. The in-process `subagent-spawn` / `subagent-fork` backends share the `subagent-inprocess` driver (a pure library — both depend on it, neither on the other), the out-of-process `subagent-acp` backend builds on the `subagent-process` library (the credential env scrub, the dispose ladder, isolated config dirs) and ships alongside them here; the test-only `dsh-subagent-mock` (in [support](../support/README.md)) is separate. All **product** packages except the mock. +The interface lives at `subagent/subagent/`. The in-process `subagent-spawn` / `subagent-fork` backends share the `subagent-inprocess` driver (a pure library — both depend on it, neither on the other), the out-of-process `subagent-acp` backend builds on the `subagent-subprocess` library (the credential env scrub, the dispose ladder, isolated config dirs) and ships alongside them here; the test-only `dsh-subagent-mock` (in [support](../support/README.md)) is separate. All **product** packages except the mock. The proposal and design rationale: [docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md](../../docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md). diff --git a/packages/subagent/subagent-acp/README.md b/packages/subagent/subagent-acp/README.md index 2cc330aefd..7fb087dcdc 100644 --- a/packages/subagent/subagent-acp/README.md +++ b/packages/subagent/subagent-acp/README.md @@ -57,7 +57,7 @@ A spawn/transport/RPC failure resolves `error` (or `aborted` if a cancel was req ## Environment scrub -The child env is built by [`buildChildEnv` from `@deepseek-ai/dsh-subagent-process`](../subagent-process/README.md) — the ambient env minus credential-shaped vars, with `config.env` layered on top after the scrub; the pattern and full semantics live there. For this backend that means the parent harness's own secrets never leak into the spawned agent implicitly, while the child's OWN `DEEPSEEK_API_KEY` is supplied deliberately via `config.env` and survives. +The child env is built by [`buildChildEnv` from `@deepseek-ai/dsh-subagent-subprocess`](../subagent-subprocess/README.md) — the ambient env minus credential-shaped vars, with `config.env` layered on top after the scrub; the pattern and full semantics live there. For this backend that means the parent harness's own secrets never leak into the spawned agent implicitly, while the child's OWN `DEEPSEEK_API_KEY` is supplied deliberately via `config.env` and survives. ## Testing diff --git a/packages/subagent/subagent-acp/package.json b/packages/subagent/subagent-acp/package.json index 45fc6b072c..e73d861a79 100644 --- a/packages/subagent/subagent-acp/package.json +++ b/packages/subagent/subagent-acp/package.json @@ -25,7 +25,7 @@ "@deepseek-ai/dsh-agent": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-subagent": "^0.0.1", - "@deepseek-ai/dsh-subagent-process": "^0.0.1", + "@deepseek-ai/dsh-subagent-subprocess": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "dependencies": { @@ -36,7 +36,7 @@ "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-subagent": "workspace:^", - "@deepseek-ai/dsh-subagent-process": "workspace:^", + "@deepseek-ai/dsh-subagent-subprocess": "workspace:^", "@cordisjs/plugin-loader": "^1.0.0-rc.4", "cordis": "^4.0.0-rc.6" } diff --git a/packages/subagent/subagent-acp/src/run.ts b/packages/subagent/subagent-acp/src/run.ts index a94c923f46..a9fefba27c 100644 --- a/packages/subagent/subagent-acp/src/run.ts +++ b/packages/subagent/subagent-acp/src/run.ts @@ -40,7 +40,7 @@ import { import { AgentId } from '@deepseek-ai/dsh-agent' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import type { SubagentResult, SubagentRun, SubagentStartRequest, SubagentStopReason } from '@deepseek-ai/dsh-subagent' -import { buildChildEnv, disposeChildProcess, spawnFailure } from '@deepseek-ai/dsh-subagent-process' +import { buildChildEnv, disposeChildProcess, spawnFailure } from '@deepseek-ai/dsh-subagent-subprocess' /** * How the client answers a child's `session/request_permission`. The first cut diff --git a/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts b/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts index 6d351c71d0..92c025077a 100644 --- a/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts +++ b/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts @@ -6,7 +6,7 @@ import { tmpdir } from 'node:os' import { join } from 'node:path' import { fileURLToPath } from 'node:url' import SubagentService from '@deepseek-ai/dsh-subagent' -import { buildChildEnv, SENSITIVE_ENV_PATTERN } from '@deepseek-ai/dsh-subagent-process' +import { buildChildEnv, SENSITIVE_ENV_PATTERN } from '@deepseek-ai/dsh-subagent-subprocess' import type { Agent } from '@deepseek-ai/dsh-agent' import * as acp from '../src/index.ts' import { acpStopReason, acpContentText, DEFAULT_DISPOSE_EOF_GRACE_MS, DEFAULT_DISPOSE_GRACE_MS, startAcpRun, toAcpPrompt, type AcpRunSpec } from '../src/run.ts' diff --git a/packages/subagent/subagent-acp/tsconfig.json b/packages/subagent/subagent-acp/tsconfig.json index ab24f60f93..e415ace1de 100644 --- a/packages/subagent/subagent-acp/tsconfig.json +++ b/packages/subagent/subagent-acp/tsconfig.json @@ -27,7 +27,7 @@ "path": "../subagent" }, { - "path": "../subagent-process" + "path": "../subagent-subprocess" } ] } diff --git a/packages/subagent/subagent-process/README.md b/packages/subagent/subagent-subprocess/README.md similarity index 86% rename from packages/subagent/subagent-process/README.md rename to packages/subagent/subagent-subprocess/README.md index e6c8e10a96..ccc68bf31b 100644 --- a/packages/subagent/subagent-process/README.md +++ b/packages/subagent/subagent-subprocess/README.md @@ -1,4 +1,4 @@ -# @deepseek-ai/dsh-subagent-process +# @deepseek-ai/dsh-subagent-subprocess Shared machinery for **out-of-process subagent backends** — providers that spawn an external agent as a child process, such as the [ACP backend](../subagent-acp/README.md). A pure library (no provider, no registration, no Config): what every spawn-a-CLI-child backend needs to keep the parent deployment's credentials out of the child, tear the child down to quiescence, and isolate it from the host user's on-disk CLI state. Design rationale: [the Claude Code / Codex subagent backends RFC](../../../docs/rfc/proposed/feature/2026-07-07-claude-code-and-codex-subagent-backends.md). @@ -37,4 +37,4 @@ A per-run isolated config directory for an external CLI child (the target of `CL ## Testing -`tests/subagent-process.spec.ts`: the env scrub and config-dir helpers run against the real process env and real filesystem (the rm-failure path injects its rejection at the fs boundary — a real recursive-rm failure is not portably provokable, and root ignores permission bits); the exit waits and the dispose ladder run against a scriptable fake child, driving each escalation tier deterministically. The [ACP backend suite](../subagent-acp/README.md) exercises the same ladder against real subprocesses (EOF-cooperative, EOF-ignoring, and SIGTERM-trapping children) end to end. +`tests/subagent-subprocess.spec.ts`: the env scrub and config-dir helpers run against the real process env and real filesystem (the rm-failure path injects its rejection at the fs boundary — a real recursive-rm failure is not portably provokable, and root ignores permission bits); the exit waits and the dispose ladder run against a scriptable fake child, driving each escalation tier deterministically. The [ACP backend suite](../subagent-acp/README.md) exercises the same ladder against real subprocesses (EOF-cooperative, EOF-ignoring, and SIGTERM-trapping children) end to end. diff --git a/packages/subagent/subagent-process/package.json b/packages/subagent/subagent-subprocess/package.json similarity index 93% rename from packages/subagent/subagent-process/package.json rename to packages/subagent/subagent-subprocess/package.json index 218276be44..68f525dd8e 100644 --- a/packages/subagent/subagent-process/package.json +++ b/packages/subagent/subagent-subprocess/package.json @@ -1,5 +1,5 @@ { - "name": "@deepseek-ai/dsh-subagent-process", + "name": "@deepseek-ai/dsh-subagent-subprocess", "description": "Shared out-of-process subagent machinery: credential env scrub, spawn-failure capture, child-exit waits, the EOF-to-SIGTERM-to-SIGKILL dispose ladder, and isolated config dirs (pure lib; registers nothing)", "version": "0.0.1", "private": true, diff --git a/packages/subagent/subagent-process/src/index.ts b/packages/subagent/subagent-subprocess/src/index.ts similarity index 99% rename from packages/subagent/subagent-process/src/index.ts rename to packages/subagent/subagent-subprocess/src/index.ts index 219ed6b083..35d7383456 100644 --- a/packages/subagent/subagent-process/src/index.ts +++ b/packages/subagent/subagent-subprocess/src/index.ts @@ -15,7 +15,7 @@ * periods, a pinned config dir — is a PARAMETER here: defaults belong in each * consuming plugin's Config, per the no-hardcoded-tunables rule. * - * @module @deepseek-ai/dsh-subagent-process + * @module @deepseek-ai/dsh-subagent-subprocess */ import type { ChildProcess } from 'node:child_process' diff --git a/packages/subagent/subagent-process/tests/subagent-process.spec.ts b/packages/subagent/subagent-subprocess/tests/subagent-subprocess.spec.ts similarity index 94% rename from packages/subagent/subagent-process/tests/subagent-process.spec.ts rename to packages/subagent/subagent-subprocess/tests/subagent-subprocess.spec.ts index d23f075284..2766ed0a41 100644 --- a/packages/subagent/subagent-process/tests/subagent-process.spec.ts +++ b/packages/subagent/subagent-subprocess/tests/subagent-subprocess.spec.ts @@ -256,9 +256,9 @@ describe('disposeChildProcess', () => { describe('createIsolatedConfigDir', () => { it('creates a fresh private mkdtemp dir under the OS temp root', async () => { - const dir = await createIsolatedConfigDir('dsh-subagent-process-test-') + const dir = await createIsolatedConfigDir('dsh-subagent-subprocess-test-') try { - expect(dir.path.startsWith(join(tmpdir(), 'dsh-subagent-process-test-'))).toBe(true) + expect(dir.path.startsWith(join(tmpdir(), 'dsh-subagent-subprocess-test-'))).toBe(true) const st = await stat(dir.path) expect(st.isDirectory()).toBe(true) // Private (0700) per the defensive-patterns temp-dir rule. @@ -269,8 +269,8 @@ describe('createIsolatedConfigDir', () => { }) it('creates a distinct dir per call (per-run isolation)', async () => { - const a = await createIsolatedConfigDir('dsh-subagent-process-test-') - const b = await createIsolatedConfigDir('dsh-subagent-process-test-') + const a = await createIsolatedConfigDir('dsh-subagent-subprocess-test-') + const b = await createIsolatedConfigDir('dsh-subagent-subprocess-test-') try { expect(a.path).not.toBe(b.path) } finally { @@ -280,7 +280,7 @@ describe('createIsolatedConfigDir', () => { }) it('remove() deletes a fresh dir recursively and is idempotent', async () => { - const dir = await createIsolatedConfigDir('dsh-subagent-process-test-') + const dir = await createIsolatedConfigDir('dsh-subagent-subprocess-test-') await writeFile(join(dir.path, 'settings.json'), '{}') await dir.remove() expect(existsSync(dir.path)).toBe(false) @@ -289,7 +289,7 @@ describe('createIsolatedConfigDir', () => { }) it('returns a pinned dir verbatim and NEVER removes it', async () => { - const pinned = await mkdtemp(join(tmpdir(), 'dsh-subagent-process-pinned-')) + const pinned = await mkdtemp(join(tmpdir(), 'dsh-subagent-subprocess-pinned-')) try { const dir = await createIsolatedConfigDir('ignored-prefix-', pinned) expect(dir.path).toBe(pinned) @@ -302,7 +302,7 @@ describe('createIsolatedConfigDir', () => { }) it('does not create a missing pinned path (the deployment owns its lifecycle)', async () => { - const missing = join(tmpdir(), `dsh-subagent-process-missing-${process.pid}`) + const missing = join(tmpdir(), `dsh-subagent-subprocess-missing-${process.pid}`) const dir = await createIsolatedConfigDir('ignored-prefix-', missing) expect(dir.path).toBe(missing) expect(existsSync(missing)).toBe(false) @@ -311,7 +311,7 @@ describe('createIsolatedConfigDir', () => { }) it('remove() is best-effort: an rm rejection resolves instead of rejecting', async () => { - const dir = await createIsolatedConfigDir('dsh-subagent-process-locked-') + const dir = await createIsolatedConfigDir('dsh-subagent-subprocess-locked-') try { // The swallow contract is error-kind agnostic; EACCES stands in for the // family (EBUSY, a vanished mount, …) that best-effort must absorb. diff --git a/packages/subagent/subagent-process/tsconfig.json b/packages/subagent/subagent-subprocess/tsconfig.json similarity index 100% rename from packages/subagent/subagent-process/tsconfig.json rename to packages/subagent/subagent-subprocess/tsconfig.json diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 248405f643..023588835a 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -635,9 +635,9 @@ importers: '@deepseek-ai/dsh-subagent': specifier: workspace:^ version: link:../subagent - '@deepseek-ai/dsh-subagent-process': + '@deepseek-ai/dsh-subagent-subprocess': specifier: workspace:^ - version: link:../subagent-process + version: link:../subagent-subprocess cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -715,12 +715,6 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) - packages/subagent/subagent-process: - devDependencies: - cordis: - specifier: ^4.0.0-rc.6 - version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) - packages/subagent/subagent-spawn: dependencies: schemastery: @@ -773,6 +767,12 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/subagent/subagent-subprocess: + devDependencies: + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/subagent/tool-subagent: dependencies: schemastery: diff --git a/tsconfig.build.json b/tsconfig.build.json index c5318e83fe..7fc770fac7 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -51,7 +51,7 @@ { "path": "./packages/support/subagent-mock" }, { "path": "./packages/subagent/tool-subagent" }, { "path": "./packages/subagent/subagent-inprocess" }, - { "path": "./packages/subagent/subagent-process" }, + { "path": "./packages/subagent/subagent-subprocess" }, { "path": "./packages/subagent/subagent-spawn" }, { "path": "./packages/subagent/subagent-fork" }, { "path": "./packages/subagent/subagent-acp" }, diff --git a/tsconfig.json b/tsconfig.json index 8882714d50..380d5f72f5 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -62,7 +62,7 @@ { "path": "./packages/support/subagent-mock" }, { "path": "./packages/subagent/tool-subagent" }, { "path": "./packages/subagent/subagent-inprocess" }, - { "path": "./packages/subagent/subagent-process" }, + { "path": "./packages/subagent/subagent-subprocess" }, { "path": "./packages/subagent/subagent-spawn" }, { "path": "./packages/subagent/subagent-fork" }, { "path": "./packages/subagent/subagent-acp" }, From 68ebc76af7a20e53744d1ca569e59014031ebe35 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Wed, 8 Jul 2026 11:45:01 +0800 Subject: [PATCH 117/232] docs(rfc): the self-referential cordis toolset The design record for tool-cordis: the three-tool contract, the vm sandbox trust stance and boundary mechanisms, the dynamic-group lifecycle, cross-mount provide/inject composition, the generated runtime API catalog, and the alternatives weighed (per-capability registration tools, hand-maintained API tables, a mount provenance event, a hardened sandbox). --- docs/rfc/INDEX.md | 1 + ...6-07-08-self-referential-cordis-toolset.md | 84 +++++++++++++++++++ 2 files changed, 85 insertions(+) create mode 100644 docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index e70e81877c..09f8caedb4 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -63,6 +63,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [Subagent lifecycle enrichment — lastAssistantMessage (observe-only)](implemented/feature/2026-06-30-subagent-observe-enrich.md) | 2026-06-30 | | [Explicit model-facing tool order](implemented/feature/2026-07-06-explicit-tool-order.md) | 2026-07-06 | | [Repeat-tool-call guard plugin](implemented/feature/2026-07-08-repeat-tool-guard.md) | 2026-07-08 | +| [The self-referential cordis toolset](implemented/feature/2026-07-08-self-referential-cordis-toolset.md) | 2026-07-08 | ### Simplification diff --git a/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md b/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md new file mode 100644 index 0000000000..95cb12b571 --- /dev/null +++ b/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md @@ -0,0 +1,84 @@ +# RFC: The self-referential cordis toolset + +Status: implemented + +## Problem + +Everything in this harness is a cordis plugin, but the agent running inside that plugin runtime cannot see or touch it: it cannot enumerate the services and events around it, cannot extend itself with a new tool mid-session, and cannot compose capabilities it invents. Handing the model that power is worth exploring — a self-referential agent that inspects and modifies its own runtime — but it raises three correctness problems at once, and the design is about answering them rather than the raw "let the model run code" mechanic. + +First, model-written registration must be validated where it happens: a malformed tool schema has to fail at registration, not when a later request tries to assemble it into a prompt. Second, model-written code has to call service APIs whose source it has never seen — guessed method signatures and, worse, guessed return-value shapes cost many steps of blind probing. Third, everything the model mounts must be fully disposable, by the model on demand and by the ordinary plugin lifecycle when the host plugin reloads, or a long session accretes orphaned listeners and tools. + +## Decision + +The toolset ships as [`@deepseek-ai/dsh-tool-cordis`](../../../../packages/cordis/tool-cordis/README.md) — a new top-level `packages/cordis/` group — and is demoed by [`examples/cordis-agent`](../../../../examples/cordis-agent/README.md). It gives the model three tools over the live cordis runtime it is running inside: inspect it, mount model-written plugins into it, dispose them again. + +The trust stance, stated once and threaded through the rest: the `node:vm` sandbox isolates the global context only — it prevents accidental global pollution, not malice. The `ctx` handed to a mounted plugin's `apply` is the real, fully privileged runtime handle; handing the model that handle is the point of the toolset. A deployment loads this plugin exactly as deliberately as it grants a bash tool — an opt-in capability in the app's `cordis.yml`, never a product default. + +### The three tools + +| Tool | Contract | +|---|---| +| `cordis_inspect` | Read-only report over the live runtime, one Markdown section per `what` value (omit `what` for all sections). Never mutates. | +| `cordis_mount` | Evaluates `code` (the body of an async JavaScript function) in a `node:vm` sandbox; the code must `return` a cordis plugin, which is mounted as a child of the `cordis-dynamic` group fiber and tracked under a fresh id (`dyn-1`, `dyn-2`, …). | +| `cordis_unmount` | Disposes one dynamic mount by id and returns only after disposal reaches quiescence — every registration the plugin made is unwound, not merely requested to stop. | + +`cordis_inspect` sections: `services` (every provided ctx service and the owning fiber, non-active owners flagged), `plugins` (the whole plugin fiber tree rebuilt from `ctx.registry`, ASCII, dynamic mounts annotated with their ids), `tools` (what the model can call), `dynamic` (the mount table: id, name, state, provided services, awaited services), `api` (live service signatures + the type shapes they reference, from the generated catalog), and `events` (harness events with dispatch mode and signature). The model-facing tool descriptions carry the operational rules the model needs at call time; [the generated tool catalog](../../../tool-catalog.md) is their exhaustive rendering. + +### Sandbox semantics + +Mount code runs via `vm.createContext` + `runInContext`, wrapped as the body of an async function under a per-mount filename (`cordis-mount-.js`). The vm gives the code a fresh realm: writes to `globalThis` stay inside the sandbox, and no Node API is provided — capability access is routed through the cordis services (`ctx.fs` for files, `ctx.web` for HTTP, `ctx.bash` for processes, the `ctx.timer` helpers for timing), never Node built-ins, so everything a mounted plugin does stays inspectable through the fiber tree and disposable with it. The `vmTimeoutMs` config bounds only the synchronous portion of evaluation; an async body escapes the bound (acceptable under the trust stance above). + +Sandbox globals are deliberately small: a tagged write-through `console` (`[cordis:] …` on the host stdout/stderr, so a listener that fires long after the mount call still lands somewhere the user sees), the `harness.defineTool` / `harness.registerTool` registration pair, the encoding primitives fresh vm contexts lack (`btoa`/`atob` as host closures over `Buffer` — a sanctioned exception, `Buffer` itself is never exposed — plus `TextEncoder`/`TextDecoder`), and callable traps over the withheld Node APIs (`require`, `setTimeout`/`setInterval`/`setImmediate`/`clearTimeout`/`clearInterval`, `fetch`) that throw a redirect naming the cordis alternative. Only function-shaped globals are trapped; `process` and `Buffer` stay `undefined` so a `typeof` feature probe stays inert rather than detonating a throwing accessor. + +Three boundary mechanisms make model-written code behave correctly across the realm seam. **Dual-realm `instanceof`**: most objects sandbox code touches are host-realm (tool `args`, event payloads, service returns), so a plain `x instanceof Array` in the vm would silently be false — a per-sandbox prelude gives the vm realm's own constructors a `Symbol.hasInstance` that checks both the vm constructor and its host counterpart, patching only vm-realm globals. **Realm normalization of tool results**: objects built inside the vm carry the vm realm's `Object.prototype`, which the session log's append-time plainness check (`isJsonValue` in `dsh-session`, a prototype-identity comparison) rejects, so the sandbox's `harness.defineTool` JSON round-trips every `execute` return into the host realm — which also projects it onto exactly what the log durably stores. **Guarded registration**: the `ctx` a mounted plugin receives is a proxy whose `tools.register` accepts only definitions returned by `harness.defineTool` (a marker symbol), so every dynamic tool passes SchemaSpec validation and realm normalization; everything else on `ctx` passes through with correct `this` binding, which is what keeps cross-mount `provide`/`inject` working. + +Boundary errors are written around the mistakes models actually make (see [Consequences](#consequences) for how each was found): JSON Schema where the SchemaSpec DSL is expected gets a ✗/✓ example pair; an unbalanced `});` closing gets the vm's offending source line plus a "code is a function body" reminder; TypeScript syntax gets the remove-annotations fix (detected on the failing line only, so an ` as ` inside a description string does not misfire); a forgotten `return` gets the two valid plugin forms; a Node built-in call gets the redirect to its cordis service; a tool-name collision on re-mount gets the unmount-first-then-remount recipe. + +### The dynamic group and mount lifecycle + +Every dynamic mount is a child of a single `cordis-dynamic` group fiber, itself a child of the `tool-cordis` plugin's fiber. The group exists so the mounts form one subtree: they read as a unit in the inspect tree, and disposing `tool-cordis` (HMR reload, config unload) cascades over every mount through the ordinary parent→child fiber lifecycle — no bespoke cleanup. Mounting settles before it reports: the returned fiber is `await()`ed, and a startup error (a throwing `apply`, a duplicate tool name, a duplicate service) disposes the fiber and surfaces as the tool error, so a failed mount never lingers. A settled fiber that is not active is a legal pending mount — cordis semantics for unsatisfied `inject` — kept mounted and reported with what it waits for. Everything the plugin registers is an effect on its fiber, so `cordis_unmount` is nothing but an awaited `fiber.dispose()`. + +### Cross-mount composition via provide/inject + +Mounts relate to each other through ordinary cordis service semantics, with their ids as the lifecycle handles: mount A calls `ctx.provide('foo', value)`, mount B declares `inject: ['foo']` and activates the moment `foo` exists; mounted first, B stays pending and names the missing service; unmounting A sends B back to pending (its registrations unwound) and a later re-provide re-runs B's `apply` through the same guarded context; a duplicate provide fails loud with the owning fiber named. One realm caveat: a service value provided by a mount is a vm-realm object — method calls on it work from anywhere, but consumers must not assume host prototypes on it. + +### The generated API catalog + +`cordis_inspect what:"api"` and `what:"events"` answer from a machine-readable catalog generated at build time, never a hand-maintained table that would drift from the JSDoc it paraphrases. [`scripts/gen-cordis-api.ts`](../../../../scripts/gen-cordis-api.ts) reuses `collectServices` / `collectEvents` from [`scripts/gen-cordis-catalog.ts`](../../../../scripts/gen-cordis-catalog.ts) — the same AST walk that generates [the cordis service catalog](../../../cordis-catalog/services.md) and [events catalog](../../../cordis-catalog/events.md) — and emits `packages/cordis/tool-cordis/src/api-catalog.ts`, a committed, banner-commented data module. The artifact carries, per service, its key + one-line summary + raw method signatures; per event, name + `@mode` + signature + summary; the comment-stripped declarations of every exported type the service signatures reference (transitive closure — so a consumer sees that a bash run's `stdout` is `{ text, truncated }`, not a string); plus the curated inherited `ctx` surface shared with the cordis catalog generator. A type name declared in more than one package (each plugin's `Config`) is dropped as ambiguous, and an oversized declaration is truncated with a marker. + +Freshness is gated like every generated artifact: `pnpm run verify-cordis-api` (in `doc-sync`) regenerates in memory and fails on any diff, so a JSDoc edit that changes a public signature cannot ship without regenerating the catalog the model reads. At runtime the inspect tool intersects the catalog with the live runtime rather than dumping it: live catalogued services render summary + signatures, live services without a catalog entry (mount-provided ones) render name + owning fiber, catalogued services with no live provider are listed tersely, and the referenced type shapes follow. + +### Configuration, rendering, and observability + +The plugin exposes one config field, validated by schemastery and documented in [the config catalog](../../../config-catalog.md): `vmTimeoutMs` (default 5000), the millisecond bound on the synchronous portion of mount-code evaluation. Tool names, the `cordis-dynamic` group name, and the `dyn-` id prefix are structural vocabulary and stay fixed. All three tools render as `generic` cards per [the tool cookbook](../../../cookbook/adding-a-tool.md) (`cordis_inspect` a `read`, `cordis_mount` an `execute` carrying the code as `rawInput`, `cordis_unmount` a `delete`), with no `presentResult` overrides. + +Model-visible ⟺ logged holds with no new session event type: a mount or unmount is visible only through its own `tool/call` / `tool/result` pair, which the loop logs, and the changed tool set a mount induces is logged by the request-header delta the loop already emits when schemas change between steps. There is deliberately no `cordis/mount` provenance event — it would duplicate what the tool-call pair records. Dynamic mounts are process-lifetime, not session state: resuming a persisted session rehydrates the conversation but does not re-mount plugins. + +## Alternatives considered + +**A structured per-capability registration tool instead of `cordis_mount`.** The most tempting alternative is a `cordis_register_tool` with explicit `name` / `description` / `parameters` / `code` fields (and siblings `cordis_register_listener`, `cordis_register_service`, …) rather than a single "mount a plugin" primitive. It was rejected because its one real win — no plugin boilerplate for the single commonest case — does not pay for its costs, while a single mount primitive answers every capability at once. + +| Dimension | Structured per-capability tools | Single `cordis_mount` | +|---|---|---| +| Schema correctness | `parameters` is still a model-written JSON object needing SchemaSpec validation, merely one step earlier | The same validation runs at the sandbox boundary, with the same instructive errors | +| The code field | An `execute` body is still model-written JS in a vm; the realm and service-call correctness problems are unchanged | One sandbox, one normalization path, one guarded registration | +| Capability coverage | Tools only; listeners, services, `inject` relations each need another structured tool — a surface that grows without bound | One vocabulary (a cordis plugin) covers every effect, present and future | +| Cross-mount composition | Not expressible in a tool-registration payload | Native `provide`/`inject`, ordinary cordis semantics | +| Inspectability | Registers something the plugin tree cannot show as a plugin | What the model mounts is exactly what `cordis_inspect` renders | +| Model ergonomics | Wins for the single most common case (no plugin boilerplate) | Mitigated by the canonical recipe in the mount description plus boundary errors that teach the fix | + +The correctness investment therefore goes where it pays for every capability at once: the generated API catalog surfaced through `cordis_inspect`, and sandbox-boundary validation whose error messages teach the correct call. A structured registration tool remains addable later as sugar that synthesizes mount code; nothing here forecloses it. + +**A hand-maintained service/event reference in the tool.** The first cut of the inspect tool carried a hand-written table of service method signatures. It was replaced by the generated `api-catalog.ts` because a hand table drifts from the JSDoc the moment a signature changes and nothing gates the drift, whereas the generated artifact is freshness-checked against the same AST the docs use. + +**A new `cordis/mount` session event.** A durable provenance event recording each mount (source, name) has clear precedent (`hook/invoked`, `compact/start`). It was declined for v1: mount and unmount are already visible as `tool/call` / `tool/result` pairs and the tool-set change is already logged as a request-header delta, so a dedicated event would only duplicate the record. It remains addable if an audit use case needs mount provenance separable from the tool call. + +**A hardened / capability-restricted sandbox.** Trapping Node built-ins might suggest an intent to sandbox for safety. It is explicitly not that: the traps redirect the model toward cordis services (and away from leak-prone Node timers) for correctness and inspectability, but `ctx` is fully privileged and the vm is not a security boundary. A real security boundary (separate process, permission prompts) was out of scope for a dev/opt-in toolset and would fight the entire point — handing the model the live runtime. + +## Consequences + +The toolset is a deliberate opt-in with a fully-privileged `ctx`, so a deployment adopts it as consciously as a bash tool. Several facts follow that the tool descriptions warn the model about directly: a waterfall listener (e.g. `tools/pre-execute`) that returns without calling `next()` vetoes the chain, so a mounted listener can lobotomize the agent's own tool dispatch ([waterfall semantics](../../../cordis-primer.md#cordis-waterfall-semantics)); mount code runs inside a tool call of the current turn, so awaiting anything that resolves only after the turn deadlocks; `vmTimeoutMs` bounds synchronous evaluation only; and mounts do not survive session resume. + +The instructive boundary errors were not guessed — they were written against a live self-design session in which a real model was asked to build itself coding tools. That session surfaced the failure modes now mitigated: the model closed a returned plugin object with `});` and got only a bare `Unexpected token ')'` it retried blind; it hit a false-positive "this is TypeScript" hint because a description string contained the word "as"; and, most costly, it guessed a bash run's `stdout` was a string and burned six steps building throwaway debug tools to discover it is `{ text, truncated }`. The fixes — source-line-plus-caret parse errors, line-scoped TypeScript detection, the type-shape closure in the API catalog, and the redirect traps — cut a second session from dozens of tool calls with repeated errors to a first-try success on every capability, including a model that hit a Node-`setTimeout` trap and self-corrected to `inject: ['timer']` in one step. + +Coverage is named per tier: package unit specs drive the three tools through a real `ToolRegistry` on a real fiber tree (the mount success/failure family, vm isolation, dual-realm `instanceof`, realm normalization against the real `isJsonValue`, the SchemaSpec and raw-registration rejections, the Node-API traps, the cross-mount provide/inject matrix, catalog-backed `api`/`events` rendering, config validation, presenters, quiescent unmount, and the HMR cascade), a `MockAdapter` loop test proves a tool mounted in one step is dispatchable in the next, and the example carries a keyless Loader smoke plus a with-key smoke that world-verifies a live model mounting a listener, building its own tool, and composing two mounts. No snapshot scenario is added: the toolset ships in no ACP-served app, so it changes no editor-facing transcript, and its presenters are unit-tested pure functions — adding it to the ACP example solely for a golden would rewrite the pinned request-header tool set of every recorded scenario. From ee1da1ce5be9dbee1c97080687355b471a1b4dad Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Wed, 8 Jul 2026 11:45:46 +0800 Subject: [PATCH 118/232] =?UTF-8?q?feat(cordis):=20@deepseek-ai/dsh-tool-c?= =?UTF-8?q?ordis=20=E2=80=94=20inspect/mount/unmount=20over=20the=20live?= =?UTF-8?q?=20runtime?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit New top-level packages/cordis/ group with the self-referential toolset: cordis_inspect (services / plugin tree / tools / dynamic mounts / api / events, the api section intersecting the generated catalog with the live service store), cordis_mount (model-written code evaluated in a node:vm sandbox, mounted under one cordis-dynamic group fiber as dyn-), cordis_unmount (awaited disposal to quiescence). Boundary mechanisms: dual-realm instanceof, JSON realm normalization of dynamic tool results, marker-guarded registration, SchemaSpec teaching errors, parse failures surfaced with the offending line + caret and a line-scoped TypeScript hint, and the unmount-first recipe on tool-name collisions. Config: vmTimeoutMs (schemastery, default 5000). Design record: docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md. The tool-catalog boot manifest, its regenerated output, and the pinned tool-name list land here rather than with the other repo registration: the completeness guard globs packages/*/tool-* and fails the generator (and the core/tools spec) the moment the package directory exists. --- docs/tool-catalog.md | 73 ++ packages/cordis/README.md | 7 + packages/cordis/tool-cordis/README.md | 33 + packages/cordis/tool-cordis/package.json | 42 + .../cordis/tool-cordis/src/api-catalog.ts | 786 ++++++++++++++++++ .../cordis/tool-cordis/src/fiber-state.ts | 39 + packages/cordis/tool-cordis/src/guard.ts | 199 +++++ packages/cordis/tool-cordis/src/index.ts | 228 +++++ packages/cordis/tool-cordis/src/inspect.ts | 225 +++++ packages/cordis/tool-cordis/src/mount.ts | 64 ++ packages/cordis/tool-cordis/src/present.ts | 51 ++ packages/cordis/tool-cordis/src/sandbox.ts | 153 ++++ .../tool-cordis/tests/cross-mount.spec.ts | 105 +++ packages/cordis/tool-cordis/tests/helpers.ts | 104 +++ .../cordis/tool-cordis/tests/inspect.spec.ts | 123 +++ .../tool-cordis/tests/integration.spec.ts | 74 ++ .../cordis/tool-cordis/tests/mount.spec.ts | 409 +++++++++ .../cordis/tool-cordis/tests/present.spec.ts | 41 + .../tool-cordis/tests/tool-cordis.spec.ts | 49 ++ .../tool-cordis/tests/unmount-hmr.spec.ts | 82 ++ packages/cordis/tool-cordis/tsconfig.json | 27 + .../core/tools/tests/gen-tool-catalog.spec.ts | 2 +- pnpm-lock.yaml | 34 + scripts/gen-tool-catalog.ts | 13 + tsconfig.base.json | 1 + tsconfig.build.json | 1 + tsconfig.json | 1 + 27 files changed, 2965 insertions(+), 1 deletion(-) create mode 100644 packages/cordis/README.md create mode 100644 packages/cordis/tool-cordis/README.md create mode 100644 packages/cordis/tool-cordis/package.json create mode 100644 packages/cordis/tool-cordis/src/api-catalog.ts create mode 100644 packages/cordis/tool-cordis/src/fiber-state.ts create mode 100644 packages/cordis/tool-cordis/src/guard.ts create mode 100644 packages/cordis/tool-cordis/src/index.ts create mode 100644 packages/cordis/tool-cordis/src/inspect.ts create mode 100644 packages/cordis/tool-cordis/src/mount.ts create mode 100644 packages/cordis/tool-cordis/src/present.ts create mode 100644 packages/cordis/tool-cordis/src/sandbox.ts create mode 100644 packages/cordis/tool-cordis/tests/cross-mount.spec.ts create mode 100644 packages/cordis/tool-cordis/tests/helpers.ts create mode 100644 packages/cordis/tool-cordis/tests/inspect.spec.ts create mode 100644 packages/cordis/tool-cordis/tests/integration.spec.ts create mode 100644 packages/cordis/tool-cordis/tests/mount.spec.ts create mode 100644 packages/cordis/tool-cordis/tests/present.spec.ts create mode 100644 packages/cordis/tool-cordis/tests/tool-cordis.spec.ts create mode 100644 packages/cordis/tool-cordis/tests/unmount-hmr.spec.ts create mode 100644 packages/cordis/tool-cordis/tsconfig.json diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md index 3645ff40e9..e77716f736 100644 --- a/docs/tool-catalog.md +++ b/docs/tool-catalog.md @@ -16,6 +16,7 @@ This table connects model-visible tool names to the plugin package and service s | Tool package | Model-visible names | Requires | Writes / affects | Shipped aliases | Deployment note | | --- | --- | --- | --- | --- | --- | | `@deepseek-ai/dsh-tool-bash` | `bash`, `bash_kill`, `bash_output` | `ctx.tools`, `ctx.bash` | `tool/call`, `tool/result`, `context/message via agent.inject() for background completion notices` | - | The bash/bash_output/bash_kill tools are model-facing consumers of the bash executor seam. | +| `@deepseek-ai/dsh-tool-cordis` | `cordis_inspect`, `cordis_mount`, `cordis_unmount` | `ctx.tools` | `tool/call`, `tool/result`, `live plugin-tree mutations (mount/unmount)` | - | Ships in examples/cordis-agent only (a deliberate opt-in — mounted code gets the real ctx, see docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md). Plugins the model mounts may register ADDITIONAL model-visible tools at runtime; the request-header ToolsDelta logs those tool-set changes. | | `@deepseek-ai/dsh-tool-fs` | `edit`, `read`, `write` | `ctx.tools`, `ctx.fs`, `ctx.systemPrompt` | `tool/call`, `fs/write-intent or fs/edit-intent for mutations`, `fs/observed after successful file operations`, `tool/result` | - | The read-before-write/edit policy is added by `@deepseek-ai/dsh-fs-policy` (an `fs/*` event-gate plugin, no schema change); a deployment that loads these tools is expected to also load it. The tool schemas above are identical with or without the policy plugin. | | `@deepseek-ai/dsh-tool-subagent` | `subagent` | `ctx.tools`, `ctx.subagents` | `tool/call`, `tool/result`, `child session events through the chosen provider` | `subagent`, `subagent_fork` | The registered tool name is the load-time `toolName` config (default `subagent`); the schema above is that default. The shipped example agents load this package once per subagent backend, so the model additionally sees `subagent_fork` (bound to the fork backend) with an identical schema — see `examples/coding-agent/cordis.yml` and `examples/acp-agent/cordis.yml`. | | `@deepseek-ai/dsh-tool-todo` | `todo_write` | `ctx.tools`, `owning Agent session` | `tool/call`, `todo/write`, `tool/result` | - | todo_write is session-owned state; UIs render the latest todo/write event as a checklist or ACP plan. | @@ -105,6 +106,78 @@ Source: [`packages/bash/tool-bash/src/index.ts`](../packages/bash/tool-bash/src/ The bash/bash_output/bash_kill tools are model-facing consumers of the bash executor seam. +## `@deepseek-ai/dsh-tool-cordis` + +### `cordis_inspect` + +Inspect the live cordis runtime that is running THIS agent. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (the whole plugin fiber tree with lifecycle states, as an ASCII tree — dynamic mounts appear under the `cordis-dynamic` group with their ids), `tools` (the model-facing tools currently registered, i.e. what you can call), `dynamic` (plugins you mounted via cordis_mount: id, name, state, provided services, awaited services), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Omit `what` to get all six sections. + +```json +{ + "type": "object", + "properties": { + "what": { + "type": "string", + "description": "Limit the report to one section. Omit for all sections.", + "enum": [ + "services", + "plugins", + "tools", + "dynamic", + "api", + "events" + ] + } + } +} +``` + +Source: [`packages/cordis/tool-cordis/src/index.ts`](../packages/cordis/tool-cordis/src/index.ts) + +### `cordis_mount` + +Mount a NEW cordis plugin into the live runtime that is running THIS agent (self-modification). `code` runs as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — cannot declare inject, uses whatever services are on the parent context, and accessing a service without inject (e.g. ctx.bash) throws; use it only when you need no injected services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form for any plugin that needs bash, llm, sessions, etc. BEFORE calling a service from your code, read cordis_inspect what:"api" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:"events"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, async execute(args) { … } }))` to give yourself a new tool — it becomes callable on your NEXT step. A tool's `execute` MUST return an ARRAY of content blocks, e.g. `return [{ type: 'text', text: someString }]` — never a bare string. Mounts can COMPOSE: one plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically on unmount. Sandbox globals: `console` (tagged `[cordis:]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`; there is no `require`, `process`, `Buffer`, or network. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) The sandbox prevents accidental global pollution, not malice: `ctx` is the real, fully privileged runtime handle. + +```json +{ + "type": "object", + "properties": { + "code": { + "type": "string", + "description": "Body of an async JS function; must `return` the plugin to mount." + } + }, + "required": [ + "code" + ] +} +``` + +Source: [`packages/cordis/tool-cordis/src/index.ts`](../packages/cordis/tool-cordis/src/index.ts) + +### `cordis_unmount` + +Dispose a plugin previously mounted with cordis_mount, by id. All its registrations (event listeners, tools, services) are cleaned up through the cordis effect lifecycle. Returns only after disposal has fully completed (quiescence, not just a request to stop). + +```json +{ + "type": "object", + "properties": { + "id": { + "type": "string", + "description": "The dynamic mount id returned by cordis_mount (e.g. \"dyn-1\")." + } + }, + "required": [ + "id" + ] +} +``` + +Source: [`packages/cordis/tool-cordis/src/index.ts`](../packages/cordis/tool-cordis/src/index.ts) + +Ships in examples/cordis-agent only (a deliberate opt-in — mounted code gets the real ctx, see docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md). Plugins the model mounts may register ADDITIONAL model-visible tools at runtime; the request-header ToolsDelta logs those tool-set changes. + ## `@deepseek-ai/dsh-tool-fs` ### `edit` diff --git a/packages/cordis/README.md b/packages/cordis/README.md new file mode 100644 index 0000000000..2eb33006e5 --- /dev/null +++ b/packages/cordis/README.md @@ -0,0 +1,7 @@ +# packages/cordis — the self-referential runtime toolset + +Model-facing tools over the live cordis runtime the agent itself runs inside: inspect the plugin tree and service surface, mount model-written plugins, and dispose them again. Design home: [the toolset RFC](../../docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md). + +| Package | Role | ctx key | +|---|---|---| +| [`tool-cordis/`](tool-cordis/README.md) | The `cordis_inspect` / `cordis_mount` / `cordis_unmount` tools: read the runtime, evaluate model-written plugin code in a `node:vm` sandbox, and manage the dynamic mounts under one group fiber | registers on `ctx.tools` | diff --git a/packages/cordis/tool-cordis/README.md b/packages/cordis/tool-cordis/README.md new file mode 100644 index 0000000000..71b79fecad --- /dev/null +++ b/packages/cordis/tool-cordis/README.md @@ -0,0 +1,33 @@ +# @deepseek-ai/dsh-tool-cordis + +The self-referential cordis toolset: three model-facing tools over the live runtime the agent runs inside. Design home — sandbox semantics, mount lifecycle, cross-mount composition, the generated API catalog, standing decisions: [the toolset RFC](../../../docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md). + +## What it does + +- `cordis_inspect` — read-only report over the runtime: services, the plugin fiber tree (ASCII), registered tools, the dynamic-mount table, and the catalog-backed `api` / `events` references. +- `cordis_mount` — evaluates model-written JavaScript (the body of an async function) in a `node:vm` sandbox; the code must `return` a cordis plugin, which is mounted under the `cordis-dynamic` group fiber and tracked as `dyn-`. +- `cordis_unmount` — disposes one mount by id, returning only after quiescence. + +Exact model-facing schemas: [the generated tool catalog](../../../docs/tool-catalog.md). + +## Trust stance + +The sandbox isolates the global context only — it is not a security boundary. No Node API is provided: `require`, the timers, and `fetch` are callable traps that throw a redirect to the cordis alternative (`ctx.fs` / `ctx.web` / `ctx.bash` / `inject: ['timer']` + `ctx.setTimeout`); `process` and `Buffer` are `undefined`; `globalThis` writes stay inside. The `ctx` a mounted plugin's `apply` receives is the real, fully privileged runtime handle; load this plugin as deliberately as you would grant a bash tool. + +## Config + +| Field | Default | Meaning | +|---|---|---| +| `vmTimeoutMs` | `5000` | Bound on the SYNCHRONOUS portion of mount-code evaluation; an async body escapes it | + +## The generated API catalog + +`src/api-catalog.ts` is generated by `scripts/gen-cordis-api.ts` from the same AST walk as [docs/cordis-catalog](../../../docs/cordis-catalog/services.md) and freshness-gated by `pnpm run verify-cordis-api` (in `doc-sync`) — never edit it by hand. `cordis_inspect` intersects it with the live service store at call time. + +## Rendering + +All three tools render `generic` cards (`read` / `execute` / `delete`); `cordis_mount` carries the mount code as `rawInput`. Presenters are pure functions of the args; results keep the default text rendering. + +## Export shape + +Namespace plugin: named exports `name` / `inject` / `Config` / `apply`, no default export ([docs/postmortem/0001](../../../docs/postmortem/0001-acp-default-export-drops-inject.md)). diff --git a/packages/cordis/tool-cordis/package.json b/packages/cordis/tool-cordis/package.json new file mode 100644 index 0000000000..657013f1c4 --- /dev/null +++ b/packages/cordis/tool-cordis/package.json @@ -0,0 +1,42 @@ +{ + "name": "@deepseek-ai/dsh-tool-cordis", + "description": "Self-referential cordis toolset: inspect the live runtime, mount and dispose model-written plugins", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-tools": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "schemastery": "^3.18.0" + }, + "devDependencies": { + "@deepseek-ai/dsh-agent": "workspace:^", + "@deepseek-ai/dsh-agent-loop": "workspace:^", + "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-session": "workspace:^", + "@deepseek-ai/dsh-system-prompt": "workspace:^", + "@deepseek-ai/dsh-tools": "workspace:^", + "@cordisjs/plugin-loader": "^1.0.0-rc.4", + "cordis": "^4.0.0-rc.6", + "@cordisjs/plugin-timer": "workspace:^" + } +} diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts new file mode 100644 index 0000000000..39f1a12f47 --- /dev/null +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -0,0 +1,786 @@ +/** + * Generated by scripts/gen-cordis-api.ts — do not edit by hand; run + * `pnpm run gen-cordis-api` to regenerate (freshness-gated by + * `pnpm run verify-cordis-api` in doc-sync). + * + * The machine-readable cordis API catalog `cordis_inspect` serves to the + * model: harness services (summary + public method signatures), harness + * events (mode + signature), and the inherited `ctx` surface. Produced by + * the same AST walk as docs/cordis-catalog, so this data and the rendered + * docs cannot diverge. + * + * @module @deepseek-ai/dsh-tool-cordis/api-catalog + */ + +/** One harness `ctx.` service: its one-line summary and public method signatures. */ +export interface ServiceApiEntry { + /** The `ctx.` name, e.g. `tools`. */ + key: string + /** First sentence of the service class JSDoc. */ + summary: string + /** Public method signatures, bodies stripped, in source order. */ + methods: readonly string[] +} + +/** One harness event: its dispatch mode, exact signature, and one-line summary. */ +export interface EventApiEntry { + /** The scoped event name, e.g. `agent/status`. */ + name: string + /** The dispatch mode from the declaration's `@mode` tag. */ + mode: string + /** The exact listener signature, whitespace-normalized. */ + signature: string + /** First sentence of the event JSDoc. */ + summary: string +} + +/** One inherited (cordis core + loader/hmr/timer) `ctx` member group with its summary. */ +export interface InheritedApiEntry { + /** The `ctx` member name(s), e.g. `ctx.on / ctx.once`. */ + name: string + /** One-line summary of what the member does. */ + summary: string +} + +/** One named type shape the service signatures reference. */ +export interface TypeApiEntry { + /** The exported type/interface name, e.g. `BashRunResult`. */ + name: string + /** The full declaration text, comments stripped. */ + declaration: string +} + +/** Every harness `ctx.` service, sorted by key. */ +export const SERVICE_API: readonly ServiceApiEntry[] = [ + { + key: 'agentLoop', + summary: 'The agent-loop plugin (`ctx.agentLoop`): creates ReactLoopAgents, runs their loops, and registers them in `ctx.agents`.', + methods: [ + 'create(id: AgentId, options: AgentOptions = {}): ReactLoopAgent', + 'createAgent(options: CreateAgentOptions): AgentHandle', + 'async resume(options: ResumeAgentOptions): Promise', + ], + }, + { + key: 'agents', + summary: 'Agent registry (`ctx.agents`): tracks live agents so UI, hook, and orchestrator plugins can find them without depending on the concrete loop package.', + methods: [ + 'setFactory(factory: AgentFactory): () => void', + 'create(options: CreateAgentOptions): AgentHandle', + 'async resume(options: ResumeAgentOptions): Promise', + 'register(agent: Agent): () => void', + 'get(id: AgentId): Agent | undefined', + 'list(): Agent[]', + ], + }, + { + key: 'bash', + summary: 'Abstract bash execution service.', + methods: [ + 'abstract resolve(request: BashExecRequest): BashExecSpec', + 'abstract run(spec: BashExecSpec): Promise', + 'abstract start(spec: BashExecSpec): BashTask', + 'abstract get(id: BashTaskId): BashTask | undefined', + 'abstract ownerOf(id: BashTaskId): OwnerToken | undefined', + 'abstract list(): BashTask[]', + 'abstract readOutput(id: BashTaskId): BashTaskRead', + 'abstract kill(id: BashTaskId): boolean', + 'onTaskDone(listener: BashTaskListener): () => void', + ], + }, + { + key: 'compact', + summary: 'Abstract compaction service.', + methods: [ + 'abstract compactIfNeeded( agent: CompactAgentContext, fullSystemPrompt: string, signal: AbortSignal, ): Promise', + 'abstract compactRegion( session: Session, start: number, end: number, agent: CompactAgentContext, signal?: AbortSignal, ): Promise', + ], + }, + { + key: 'fs', + summary: 'Abstract filesystem provider service.', + methods: [ + 'abstract resolve(path: string, opts?: { cwd?: string }): Promise', + 'abstract stat(target: FsTarget, signal?: AbortSignal): Promise', + 'abstract readText(target: FsTarget, signal?: AbortSignal): Promise', + 'abstract streamText(target: FsTarget, signal?: AbortSignal): Promise>', + 'abstract listDir(target: FsTarget, signal?: AbortSignal): Promise', + 'abstract writeText(target: FsTarget, content: string, expected?: FsWriteIntent, signal?: AbortSignal): Promise', + 'abstract editText(target: FsTarget, edit: FsEditRequest, expected?: { version: FsVersion }, signal?: AbortSignal): Promise', + ], + }, + { + key: 'llm', + summary: 'The abstract `llm` service: an adapter registry plus a streaming model-call surface, interceptable via the `llm/stream` waterfall.', + methods: [ + 'registerAdapter(models: string[], adapter: LlmAdapter): () => void', + 'models(): string[]', + 'stream(options: GenerateOptions): AsyncIterable', + ], + }, + { + key: 'sessionPersistence', + summary: 'Abstract durable session-persistence service.', + methods: [ + 'abstract create(meta: SessionHeader): Promise', + 'abstract append(id: SessionId, events: readonly SessionEvent[]): Promise', + 'abstract load(id: SessionId): Promise<{ meta: SessionHeader; events: SessionEvent[] }>', + 'abstract list(): Promise', + ], + }, + { + key: 'sessions', + summary: 'In-memory session store (`ctx.sessions`).', + methods: [ + 'create(id?: SessionId, options?: CreateSessionOptions): Session', + 'prepare(id?: SessionId, options?: CreateSessionOptions): Session', + 'enter(session: Session): () => void', + 'announce(session: Session): void', + 'get(id: SessionId): Session | undefined', + 'list(): Session[]', + 'fork(source: SessionForkSource, boundary?: number, childSessionId?: SessionId): Session', + ], + }, + { + key: 'subagents', + summary: 'The `subagents` service: a registry of named SubagentProviders and a capability-checked start surface.', + methods: [ + 'registerProvider(provider: SubagentProvider): () => void', + 'getProvider(name: string): SubagentProvider | undefined', + 'list(): string[]', + 'start(name: string, request: SubagentStartRequest): SubagentRun', + ], + }, + { + key: 'systemPrompt', + summary: 'Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, and named prompt variables; the agent loop calls `assemble(context)` once per step.', + methods: [ + 'section(section: PromptSection): () => void', + 'tools(provider: () => ToolSchema[]): () => void', + 'variable(name: string, provider: (context: AssembleContext) => string | undefined): () => void', + 'async assemble(context: AssembleContext = {}): Promise', + ], + }, + { + key: 'tools', + summary: 'Tool registry (`ctx.tools`): tool plugins register definitions; the agent loop executes calls through the `tools/pre-execute` → `tools/execute` → `tools/post-execute` pipeline.', + methods: [ + 'register(definition: ToolDefinition): () => void', + 'get(name: string): ToolDefinition | undefined', + 'schemas(): ToolSchema[]', + 'async execute(exec: ToolExecution): Promise', + ], + }, + { + key: 'web', + summary: 'The web access service.', + methods: [ + 'registerSearchProvider(provider: WebSearchProvider): () => void', + 'registerFetchProvider(provider: WebFetchProvider): () => void', + 'async search(request: WebSearchRequest, exec?: WebExecContext): Promise', + 'async fetch(request: WebFetchRequest, exec?: WebExecContext): Promise', + ], + }, +] + +/** Every harness event, sorted by name. */ +export const EVENT_API: readonly EventApiEntry[] = [ + { + name: 'agent/created', + mode: 'emit', + signature: '\'agent/created\'(agent: Agent): void', + summary: 'An agent was registered in the AgentRegistry and is ready to receive messages.', + }, + { + name: 'agent/disposed', + mode: 'emit', + signature: '\'agent/disposed\'(agent: Agent): void', + summary: 'An agent was disposed and removed from the registry; its fiber and any in-flight turn have been torn down.', + }, + { + name: 'agent/error', + mode: 'emit', + signature: '\'agent/error\'(agent: Agent, turn: number, step: number, error: Error): void', + summary: 'A step or turn errored.', + }, + { + name: 'agent/pre-step', + mode: 'serial', + signature: '\'agent/pre-step\'(agent: Agent, turn: number, step: number, fullSystemPrompt: string, signal: AbortSignal): Promise | void', + summary: 'Awaited pre-step surface-mutation checkpoint, fired once per step AFTER `turn/start` (and after the prior step closed) but BEFORE this step\'s `step/start` — so anything a listener appends lands OUTSIDE the step, between `turn/start`/`step/end` and the upcoming `step/start`.', + }, + { + name: 'agent/prompt-submit', + mode: 'waterfall', + signature: '\'agent/prompt-submit\'(agent: Agent, content: ContentBlock[], source: MessageSource, next: () => Promise): Promise', + summary: 'Waterfall: decide what happens to ONE drained queued message before it becomes a `user/message` — allow (optionally rewriting the prompt bytes or attaching `additionalContext`) or block it.', + }, + { + name: 'agent/queued', + mode: 'emit', + signature: '\'agent/queued\'(agent: Agent, content: ContentBlock[], info: { source: MessageSource; steering: boolean }): void', + summary: 'A message entered the agent\'s inbox (queued or steering).', + }, + { + name: 'agent/request', + mode: 'waterfall', + signature: '\'agent/request\'(agent: Agent, turn: number, step: number, config: LlmCallConfig, next: () => Promise): Promise', + summary: 'Waterfall: shape the step\'s call configuration — model switching, sampling overrides — by returning a replacement LlmCallConfig (the frozen seed is the config the loop would otherwise use).', + }, + { + name: 'agent/session-start', + mode: 'emit', + signature: '\'agent/session-start\'(agent: Agent, source: SessionStartSource): void', + summary: 'The agent\'s session lifecycle began, fired once before its first turn.', + }, + { + name: 'agent/status', + mode: 'emit', + signature: '\'agent/status\'(agent: Agent, status: AgentStatus): void', + summary: 'Agent status changed (`idle` ⇄ `running`, or → `disposed`).', + }, + { + name: 'agent/step-result', + mode: 'waterfall', + signature: '\'agent/step-result\'(agent: Agent, turn: number, step: number, message: Message, next: () => Promise): Promise', + summary: 'Waterfall: post-process the assembled assistant Message before tool dispatch (validation, content rewriting, …).', + }, + { + name: 'agent/turn-continuation', + mode: 'waterfall', + signature: '\'agent/turn-continuation\'(agent: Agent, turn: number, defaultDecision: ContinuationDecision, next: () => Promise): Promise', + summary: 'Waterfall: override the turn-continuation decision via a typed ContinuationDecision.', + }, + { + name: 'fs/edit-intent', + mode: 'waterfall', + signature: '\'fs/edit-intent\'(target: FsTarget, actor: object | undefined, next: () => { version: FsVersion } | undefined | Promise<{ version: FsVersion } | undefined>): Promise<{ version: FsVersion } | undefined>', + summary: 'Single-slot decision: produce the optional version guard for the next FileSystem.editText.', + }, + { + name: 'fs/observed', + mode: 'emit', + signature: '\'fs/observed\'(target: FsTarget, version: FsVersion, actor: object | undefined): void', + summary: 'Record that an actor observed a target at a version, after a successful read/write/edit.', + }, + { + name: 'fs/write-intent', + mode: 'waterfall', + signature: '\'fs/write-intent\'(target: FsTarget, actor: object | undefined, next: () => FsWriteIntent | undefined | Promise): Promise', + summary: 'Single-slot decision: produce the write intent for the next FileSystem.writeText.', + }, + { + name: 'llm/stream', + mode: 'waterfall', + signature: '\'llm/stream\'(this: LlmService, options: GenerateOptions, next: () => AsyncIterable): AsyncIterable', + summary: 'Waterfall around every streaming model call (retry, replay, routing).', + }, + { + name: 'session/created', + mode: 'emit', + signature: '\'session/created\'(session: Session): void', + summary: 'A session was created in the store.', + }, + { + name: 'session/event', + mode: 'emit', + signature: '\'session/event\'(session: Session, event: SessionEvent): void', + summary: 'An event was appended to a session log (sync, fire-and-forget).', + }, + { + name: 'session/flush', + mode: 'parallel', + signature: '\'session/flush\'(session: Session): Promise | void', + summary: 'Awaited durability checkpoint.', + }, + { + name: 'subagent/end', + mode: 'emit', + signature: '\'subagent/end\'(info: SubagentRunEndInfo): void', + summary: 'A subagent run settled — emitted when SubagentRun.result resolves (any stop reason).', + }, + { + name: 'subagent/provider-added', + mode: 'emit', + signature: '\'subagent/provider-added\'(provider: SubagentProvider): void', + summary: 'A provider became resolvable in the SubagentService registry.', + }, + { + name: 'subagent/provider-removed', + mode: 'emit', + signature: '\'subagent/provider-removed\'(name: string): void', + summary: 'A provider left the registry (its plugin\'s fiber was disposed — an unload or an HMR reload).', + }, + { + name: 'subagent/start', + mode: 'emit', + signature: '\'subagent/start\'(info: SubagentRunInfo): void', + summary: 'A subagent run started — emitted after the provider is resolved and its capabilities validated, as the child run begins.', + }, + { + name: 'system-prompt/assemble', + mode: 'waterfall', + signature: '\'system-prompt/assemble\'(this: SystemPrompt, assembly: PromptAssembly, context: AssembleContext, next: () => Promise): Promise', + summary: 'Waterfall around prompt assembly — mutate or extend the PromptAssembly (sections + tools + variables) before it is rendered.', + }, + { + name: 'system-prompt/change', + mode: 'emit', + signature: '\'system-prompt/change\'(): void', + summary: 'A section, tool provider, or variable provider was registered or unregistered (the assembly inputs changed).', + }, + { + name: 'tools/change', + mode: 'emit', + signature: '\'tools/change\'(): void', + summary: 'A tool was registered or unregistered (the available tool set changed).', + }, + { + name: 'tools/execute', + mode: 'waterfall', + signature: '\'tools/execute\'(this: ToolRegistry, exec: ToolExecution, next: () => Promise): Promise', + summary: 'Around-dispatch waterfall wrapping the registry\'s core tool dispatch, between the `tools/pre-execute` gate and the `tools/post-execute` seam.', + }, + { + name: 'tools/post-execute', + mode: 'waterfall', + signature: '\'tools/post-execute\'(this: ToolRegistry, exec: ToolExecution, result: ToolExecutionResult, next: () => Promise): Promise', + summary: 'Waterfall AFTER a tool runs — where hook plugins inspect the result and accept it (optionally REPLACING the model-facing content, and/or attaching `additionalContext` for the next request) or block it with corrective `feedback` (Claude Code\'s `PostToolUse`).', + }, + { + name: 'tools/pre-execute', + mode: 'waterfall', + signature: '\'tools/pre-execute\'(this: ToolRegistry, exec: ToolExecution, next: () => Promise): Promise', + summary: 'Waterfall BEFORE a tool runs — the gate where sandbox, permission, and hook plugins allow or deny a call (Claude Code\'s `PreToolUse`).', + }, +] + +/** Shapes of every exported type the SERVICE_API signatures reference (transitively), sorted by name. */ +export const TYPE_API: readonly TypeApiEntry[] = [ + { + name: 'Agent', + declaration: 'export interface Agent {\n readonly id: AgentId;\n readonly options: AgentOptions;\n readonly session: Session;\n readonly status: AgentStatus;\n send(content: ContentBlock[], options?: SendOptions): void;\n steer(content: ContentBlock[], options?: SendOptions): void;\n inject(content: ContentBlock[], options?: SendOptions): void;\n cancel(reason?: string): void;\n whenIdle(): Promise;\n}', + }, + { + name: 'AgentFactory', + declaration: 'export interface AgentFactory {\n createAgent(options: CreateAgentOptions): AgentHandle;\n resume(options: ResumeAgentOptions): Promise;\n}', + }, + { + name: 'AgentHandle', + declaration: 'export interface AgentHandle {\n agent: Agent;\n dispose(): Promise;\n}', + }, + { + name: 'AgentId', + declaration: 'export type AgentId = Branded<\'AgentId\'>;', + }, + { + name: 'AgentOptions', + declaration: 'export interface AgentOptions {\n model?: string;\n}', + }, + { + name: 'AgentStatus', + declaration: 'export type AgentStatus = \'idle\' | \'running\' | \'disposed\';', + }, + { + name: 'AssembleContext', + declaration: 'export interface AssembleContext {\n}', + }, + { + name: 'AssembledSection', + declaration: 'export interface AssembledSection {\n name: string;\n order: number;\n text: string;\n}', + }, + { + name: 'BashExecRequest', + declaration: 'export interface BashExecRequest {\n command: string;\n workdir?: string | undefined;\n timeoutMs?: number | undefined;\n signal?: AbortSignal | undefined;\n stdin?: string | undefined;\n env?: Record | undefined;\n owner?: OwnerToken | undefined;\n}', + }, + { + name: 'BashExecSpec', + declaration: 'export interface BashExecSpec {\n command: string;\n workdir: string;\n timeoutMs: number;\n signal?: AbortSignal | undefined;\n stdin?: string | undefined;\n env?: Record | undefined;\n owner: OwnerToken | undefined;\n}', + }, + { + name: 'BashRunResult', + declaration: 'export interface BashRunResult {\n exitCode: number | null;\n signal: NodeJS.Signals | null;\n timedOut: boolean;\n aborted: boolean;\n timeoutMs: number;\n stdout: CollectedOutput;\n stderr: CollectedOutput;\n}', + }, + { + name: 'BashTask', + declaration: 'export interface BashTask {\n readonly id: BashTaskId;\n readonly command: string;\n status: BashTaskStatus;\n exitCode: number | null;\n signal: NodeJS.Signals | null;\n readonly done: Promise;\n}', + }, + { + name: 'BashTaskId', + declaration: 'export type BashTaskId = Branded<\'BashTaskId\'>;', + }, + { + name: 'BashTaskListener', + declaration: 'export type BashTaskListener = (task: BashTask) => void;', + }, + { + name: 'BashTaskRead', + declaration: 'export interface BashTaskRead {\n task: BashTask;\n delta: string;\n lossy: boolean;\n stdoutSpillPath?: string;\n stderrSpillPath?: string;\n}', + }, + { + name: 'BashTaskStatus', + declaration: 'export type BashTaskStatus = \'running\' | \'completed\' | \'killed\';', + }, + { + name: 'Branded', + declaration: 'export type Branded = string & {\n readonly [BRAND]: B;\n};', + }, + { + name: 'CallId', + declaration: 'export type CallId = Branded<\'CallId\'>;', + }, + { + name: 'CollectedOutput', + declaration: 'export interface CollectedOutput {\n text: string;\n truncated: boolean;\n spillPath?: string;\n}', + }, + { + name: 'CompactAgentContext', + declaration: 'export interface CompactAgentContext {\n session: Session;\n options: {\n model?: string;\n };\n}', + }, + { + name: 'CompactionResult', + declaration: 'export interface CompactionResult {\n startSeq: number;\n summarySeq: number;\n endSeq: number;\n summary: ContentBlock[];\n shadowedRange: {\n start: number;\n end: number;\n };\n shadowedSeqs: number[];\n shadowedTokenCount: number;\n}', + }, + { + name: 'ContentBlockMap', + declaration: 'export interface ContentBlockMap {\n \'text\': TextBlock;\n \'reasoning\': ReasoningBlock;\n \'tool-call\': ToolCallBlock;\n \'tool-result\': ToolResultBlock;\n}', + }, + { + name: 'ContentBlockType', + declaration: 'export type ContentBlockType = keyof ContentBlockMap;', + }, + { + name: 'CreateAgentOptions', + declaration: 'export interface CreateAgentOptions {\n agentId: AgentId;\n sessionId: SessionId;\n meta?: {\n cwd?: string;\n parentSession?: SessionId;\n seedLength?: number;\n };\n seed?: SessionEvent[];\n agentOptions?: AgentOptions;\n}', + }, + { + name: 'CreateSessionOptions', + declaration: 'export interface CreateSessionOptions {\n seed?: SessionEvent[];\n meta?: {\n cwd?: string;\n parentSession?: SessionId;\n createdAt?: number;\n seedLength?: number;\n };\n}', + }, + { + name: 'DiffCallView', + declaration: 'export interface DiffCallView {\n card: \'diff\';\n title: string;\n diffs: FileDiff[];\n locations?: FileLocation[];\n}', + }, + { + name: 'DiffResultView', + declaration: 'export interface DiffResultView {\n card: \'diff\';\n title?: string;\n diffs: FileDiff[];\n}', + }, + { + name: 'FileDiff', + declaration: 'export interface FileDiff {\n path: string;\n oldText: string | null;\n newText: string;\n}', + }, + { + name: 'FileLocation', + declaration: 'export interface FileLocation {\n path: string;\n line?: number;\n}', + }, + { + name: 'FinishReason', + declaration: 'export type FinishReason = FinishReasonMap[keyof FinishReasonMap];', + }, + { + name: 'FinishReasonMap', + declaration: 'export interface FinishReasonMap {\n \'stop\': {\n kind: \'stop\';\n };\n \'tool-calls\': {\n kind: \'tool-calls\';\n };\n \'max-tokens\': {\n kind: \'max-tokens\';\n };\n \'aborted\': {\n kind: \'aborted\';\n };\n \'error\': {\n kind: \'error\';\n message: string;\n code?: string;\n };\n}', + }, + { + name: 'FsDirEntry', + declaration: 'export interface FsDirEntry {\n name: string;\n type: \'file\' | \'directory\' | \'other\';\n target: FsTarget;\n version?: FsVersion;\n size?: number;\n}', + }, + { + name: 'FsEditOutcome', + declaration: 'export interface FsEditOutcome {\n version: FsVersion;\n before: string;\n after: string;\n}', + }, + { + name: 'FsEditRequest', + declaration: 'export interface FsEditRequest {\n oldString: string;\n newString: string;\n replaceAll: boolean;\n}', + }, + { + name: 'FsInfo', + declaration: 'export interface FsInfo {\n version: FsVersion;\n type: \'file\' | \'directory\' | \'other\';\n size?: number;\n}', + }, + { + name: 'FsTarget', + declaration: 'export interface FsTarget {\n targetKey: FsTargetKey;\n displayPath: string;\n}', + }, + { + name: 'FsTargetKey', + declaration: 'export type FsTargetKey = Branded<\'FsTargetKey\'>;', + }, + { + name: 'FsVersion', + declaration: 'export type FsVersion = Branded<\'FsVersion\'>;', + }, + { + name: 'FsWriteIntent', + declaration: 'export type FsWriteIntent = {\n kind: \'createIfAbsent\';\n} | {\n kind: \'replaceIfVersion\';\n version: FsVersion;\n};', + }, + { + name: 'FsWriteOutcome', + declaration: 'export interface FsWriteOutcome {\n operation: \'create\' | \'update\';\n version: FsVersion;\n before: string | null;\n after: string;\n}', + }, + { + name: 'GenerateOptions', + declaration: 'export interface GenerateOptions {\n model: string;\n messages: Message[];\n system?: string;\n tools?: ToolSchema[];\n temperature?: number;\n maxTokens?: number;\n stop?: string[];\n signal?: AbortSignal;\n sessionId?: Branded<\'SessionId\'>;\n}', + }, + { + name: 'GenericCallView', + declaration: 'export interface GenericCallView {\n card: \'generic\';\n title: string;\n kind?: ToolCallKind;\n rawInput?: unknown;\n content?: ContentBlock[];\n locations?: FileLocation[];\n}', + }, + { + name: 'GenericResultView', + declaration: 'export interface GenericResultView {\n card: \'generic\';\n title?: string;\n content?: ContentBlock[];\n}', + }, + { + name: 'HookContext', + declaration: 'export interface HookContext {\n content: ContentBlock[];\n source: MessageSource;\n}', + }, + { + name: 'Message', + declaration: 'export interface Message {\n role: \'system\' | \'user\' | \'assistant\';\n content: ContentBlock[];\n}', + }, + { + name: 'MessageSource', + declaration: 'export type MessageSource = MessageSourceMap[keyof MessageSourceMap];', + }, + { + name: 'MessageSourceMap', + declaration: 'export interface MessageSourceMap {\n user: {\n kind: \'user\';\n };\n plugin: {\n kind: \'plugin\';\n plugin: string;\n };\n}', + }, + { + name: 'OwnerToken', + declaration: 'export type OwnerToken = Branded<\'OwnerToken\'>;', + }, + { + name: 'PromptAssembly', + declaration: 'export interface PromptAssembly {\n sections: AssembledSection[];\n tools: ToolSchema[];\n variables: Record;\n}', + }, + { + name: 'PromptSection', + declaration: 'export interface PromptSection {\n name: string;\n order: number;\n text: string | ((context: AssembleContext) => string);\n}', + }, + { + name: 'ReasoningBlock', + declaration: 'export interface ReasoningBlock {\n type: \'reasoning\';\n text: string;\n}', + }, + { + name: 'ResumeAgentOptions', + declaration: 'export interface ResumeAgentOptions {\n agentId: AgentId;\n resumeSessionId: SessionId;\n agentOptions?: AgentOptions;\n}', + }, + { + name: 'SendOptions', + declaration: 'export interface SendOptions {\n source?: MessageSource;\n}', + }, + { + name: 'SessionEvent', + declaration: 'export type SessionEvent = {\n [K in SessionEventType]: {\n type: K;\n seq: number;\n time: number;\n data: SessionEventMap[K];\n } & (K extends SurfaceEventType ? {\n sourceEventSeqs?: number[];\n surfaceOp?: SurfaceOp;\n } : object);\n}[T];', + }, + { + name: 'SessionEventMap', + declaration: 'export interface SessionEventMap {\n \'turn/start\': {\n turn: number;\n trigger: TurnTrigger;\n };\n \'turn/end\': {\n turn: number;\n reason: TurnEndReason;\n };\n \'step/start\': {\n turn: number;\n step: number;\n };\n \'step/end\': {\n turn: number;\n step: number;\n };\n \'user/message\': {\n content: ContentBlock[];\n source: MessageSource;\n };\n \'prompt/blocked\': {\n content: ContentBlock[];\n source: MessageSource;\n reason: string;\n };\n \'context/message\': {\n content: ContentBlock[];\n source: MessageSource;\n };\n \'assistant/chunk\': {\n turn: number;\n step: number;\n chunk: StreamChunk;\n };\n \'assistant/message\': {\n turn: number;\n step: number;\n content: ContentBlock[];\n usage?: TokenUsage;\n };\n \'tool/call\': {\n turn: number;\n step: number;\n callId: CallId;\n name: string;\n arguments: string;\n };\n \'tool/result\': {\n turn: number;\n step: number;\n callId: CallId;\n content: ContentBlock[];\n isError: boolean;\n error?: {\n name: string;\n code: string;\n };\n meta?: unknown;\n };\n \'steering/message\': {\n turn: number;\n content: ContentBlock[];\n source: MessageSource;\n };\n \'todo/write\': {\n todos: TodoItem[];\n };\n \'request/header\': {\n header: E /* …truncated — full shape in source */', + }, + { + name: 'SessionEventType', + declaration: 'export type SessionEventType = keyof SessionEventMap;', + }, + { + name: 'SessionForkSource', + declaration: 'export type SessionForkSource = Session | SessionId;', + }, + { + name: 'SessionHeader', + declaration: 'export interface SessionHeader {\n version: number;\n id: SessionId;\n createdAt: number;\n cwd?: string;\n parentSession?: SessionId;\n seedLength?: number;\n}', + }, + { + name: 'SessionId', + declaration: 'export type SessionId = Branded<\'SessionId\'>;', + }, + { + name: 'StreamChunk', + declaration: 'export type StreamChunk = {\n type: \'block-start\';\n index: number;\n blockType: ContentBlockType;\n} | {\n type: \'text-delta\';\n index: number;\n text: string;\n} | {\n type: \'reasoning-delta\';\n index: number;\n text: string;\n} | {\n type: \'tool-call-delta\';\n index: number;\n id: CallId;\n name?: string;\n argumentsDelta: string;\n} | {\n type: \'block-end\';\n index: number;\n block: ContentBlock;\n} | {\n type: \'usage\';\n usage: TokenUsage;\n} | {\n type: \'finish\';\n reason: FinishReason;\n};', + }, + { + name: 'StructuredOutputSchema', + declaration: 'export type StructuredOutputSchema = StructuredSchemaNode & {\n type: \'object\';\n};', + }, + { + name: 'StructuredScalar', + declaration: 'export type StructuredScalar = string | number | boolean | null;', + }, + { + name: 'StructuredSchemaNode', + declaration: 'export interface StructuredSchemaNode {\n type: StructuredSchemaType;\n properties?: Record;\n required?: string[];\n additionalProperties?: boolean;\n items?: StructuredSchemaNode;\n enum?: StructuredScalar[];\n const?: StructuredScalar;\n description?: string;\n title?: string;\n default?: unknown;\n examples?: unknown;\n}', + }, + { + name: 'StructuredSchemaType', + declaration: 'export type StructuredSchemaType = \'object\' | \'array\' | \'string\' | \'number\' | \'integer\' | \'boolean\' | \'null\';', + }, + { + name: 'SubagentCapabilities', + declaration: 'export interface SubagentCapabilities {\n outputSchema: boolean;\n depthLimit: boolean;\n toolFilter: boolean;\n}', + }, + { + name: 'SubagentProvider', + declaration: 'export interface SubagentProvider {\n readonly name: string;\n readonly capabilities: SubagentCapabilities;\n readonly inheritsParentContext: boolean;\n start(request: SubagentStartRequest): SubagentRun;\n}', + }, + { + name: 'SubagentResult', + declaration: 'export interface SubagentResult {\n output: ContentBlock[];\n structured?: unknown;\n stopReason: SubagentStopReason;\n}', + }, + { + name: 'SubagentRun', + declaration: 'export interface SubagentRun {\n readonly id: AgentId;\n readonly result: Promise;\n cancel(reason?: string): void;\n dispose(): Promise;\n sendMessage?(content: ContentBlock[]): void;\n resume?(content: ContentBlock[]): SubagentRun;\n}', + }, + { + name: 'SubagentStartRequest', + declaration: 'export interface SubagentStartRequest {\n prompt: ContentBlock[];\n parent: Agent;\n signal?: AbortSignal;\n agentOptions?: AgentOptions;\n outputSchema?: StructuredOutputSchema;\n maxDepth?: number;\n toolFilter?: {\n allow?: string[];\n deny?: string[];\n };\n}', + }, + { + name: 'SubagentStopReason', + declaration: 'export type SubagentStopReason = SubagentStopReasonMap[keyof SubagentStopReasonMap];', + }, + { + name: 'SubagentStopReasonMap', + declaration: 'export interface SubagentStopReasonMap {\n completed: \'completed\';\n aborted: \'aborted\';\n error: \'error\';\n \'max-tokens\': \'max-tokens\';\n refusal: \'refusal\';\n}', + }, + { + name: 'SurfaceEventType', + declaration: 'export type SurfaceEventType = \'user/message\' | \'assistant/message\' | \'tool/result\' | \'context/message\' | \'steering/message\';', + }, + { + name: 'SurfaceOp', + declaration: 'export type SurfaceOp = \'append\' | {\n op: \'replace\';\n start: number;\n end: number;\n};', + }, + { + name: 'TerminalCallView', + declaration: 'export interface TerminalCallView {\n card: \'terminal\';\n title: string;\n description?: string;\n cwd?: string;\n}', + }, + { + name: 'TerminalResultView', + declaration: 'export interface TerminalResultView {\n card: \'terminal\';\n title?: string;\n output?: string;\n exitCode?: number;\n signal?: string;\n}', + }, + { + name: 'TodoItem', + declaration: 'export interface TodoItem {\n content: string;\n status: \'pending\' | \'in_progress\' | \'completed\';\n}', + }, + { + name: 'TokenUsage', + declaration: 'export interface TokenUsage {\n inputTokens: number;\n outputTokens: number;\n cacheReadTokens?: number;\n cacheWriteTokens?: number;\n reasoningTokens?: number;\n}', + }, + { + name: 'ToolCallBlock', + declaration: 'export interface ToolCallBlock {\n type: \'tool-call\';\n id: CallId;\n name: string;\n arguments: string;\n}', + }, + { + name: 'ToolCallKind', + declaration: 'export type ToolCallKind = \'read\' | \'edit\' | \'delete\' | \'move\' | \'search\' | \'execute\' | \'fetch\' | \'other\';', + }, + { + name: 'ToolCallView', + declaration: 'export type ToolCallView = GenericCallView | TerminalCallView | DiffCallView;', + }, + { + name: 'ToolDefinition', + declaration: 'export interface ToolDefinition extends ToolSchema {\n execute(args: unknown, exec: ToolExecution): Promise;\n timeoutMs?: number;\n presentCall?(args: unknown): ToolCallView | undefined;\n presentResult?(args: unknown, result: ToolResult): ToolResultView | undefined;\n}', + }, + { + name: 'ToolErrorInfo', + declaration: 'export interface ToolErrorInfo {\n name: string;\n code: string;\n}', + }, + { + name: 'ToolExecuteReturn', + declaration: 'export type ToolExecuteReturn = ContentBlock[] | {\n content: ContentBlock[];\n meta?: unknown;\n};', + }, + { + name: 'ToolExecution', + declaration: 'export interface ToolExecution {\n callId: CallId;\n name: string;\n arguments: unknown;\n agent?: Agent;\n signal?: AbortSignal;\n}', + }, + { + name: 'ToolExecutionResult', + declaration: 'export interface ToolExecutionResult {\n callId: CallId;\n content: ContentBlock[];\n isError: boolean;\n error?: ToolErrorInfo;\n additionalContext?: HookContext;\n meta?: unknown;\n}', + }, + { + name: 'ToolResult', + declaration: 'export interface ToolResult {\n content: ContentBlock[];\n isError: boolean;\n meta?: unknown;\n}', + }, + { + name: 'ToolResultBlock', + declaration: 'export interface ToolResultBlock {\n type: \'tool-result\';\n toolCallId: CallId;\n content: ContentBlock[];\n isError?: boolean;\n}', + }, + { + name: 'ToolResultView', + declaration: 'export type ToolResultView = GenericResultView | TerminalResultView | DiffResultView;', + }, + { + name: 'ToolSchema', + declaration: 'export interface ToolSchema {\n name: string;\n description: string;\n parameters: Record;\n}', + }, + { + name: 'TurnEndReason', + declaration: 'export type TurnEndReason = TurnEndReasonMap[keyof TurnEndReasonMap];', + }, + { + name: 'TurnEndReasonMap', + declaration: 'export interface TurnEndReasonMap {\n completed: {\n kind: \'completed\';\n };\n aborted: {\n kind: \'aborted\';\n reason?: string;\n };\n error: {\n kind: \'error\';\n step: number;\n message: string;\n code?: string;\n };\n disposed: {\n kind: \'disposed\';\n };\n \'max-tokens\': {\n kind: \'max-tokens\';\n };\n rejected: {\n kind: \'rejected\';\n reason: string;\n };\n interrupted: {\n kind: \'interrupted\';\n };\n}', + }, + { + name: 'TurnTrigger', + declaration: 'export type TurnTrigger = TurnTriggerMap[keyof TurnTriggerMap];', + }, + { + name: 'TurnTriggerMap', + declaration: 'export interface TurnTriggerMap {\n message: {\n kind: \'message\';\n source: MessageSource;\n };\n injection: {\n kind: \'injection\';\n source: MessageSource;\n };\n}', + }, + { + name: 'WebExecContext', + declaration: 'export interface WebExecContext {\n readonly signal?: AbortSignal;\n}', + }, + { + name: 'WebFetchBody', + declaration: 'export type WebFetchBody = {\n readonly kind: \'html\';\n readonly content: string;\n} | {\n readonly kind: \'text\';\n readonly content: string;\n};', + }, + { + name: 'WebFetchProvider', + declaration: 'export interface WebFetchProvider {\n readonly id: string;\n status(): WebProviderStatus;\n fetch(request: WebFetchRequest, exec?: WebExecContext): Promise;\n}', + }, + { + name: 'WebFetchRequest', + declaration: 'export interface WebFetchRequest {\n readonly url: string;\n readonly timeoutMs?: number;\n}', + }, + { + name: 'WebFetchResult', + declaration: 'export interface WebFetchResult {\n readonly providerId: string;\n readonly url: string;\n readonly statusCode: number;\n readonly body: WebFetchBody;\n readonly truncated: boolean;\n}', + }, + { + name: 'WebProviderStatus', + declaration: 'export type WebProviderStatus = {\n readonly available: true;\n} | {\n readonly available: false;\n readonly reason: \'missing-credential\' | \'misconfigured\';\n};', + }, + { + name: 'WebSearchProvider', + declaration: 'export interface WebSearchProvider {\n readonly id: string;\n status(): WebProviderStatus;\n search(request: WebSearchRequest, exec?: WebExecContext): Promise;\n}', + }, + { + name: 'WebSearchRequest', + declaration: 'export interface WebSearchRequest {\n readonly query: string;\n readonly maxResults?: number;\n}', + }, + { + name: 'WebSearchResult', + declaration: 'export interface WebSearchResult {\n readonly providerId: string;\n readonly query: string;\n readonly content?: string;\n readonly sources: readonly WebSearchSource[];\n readonly truncated: boolean;\n}', + }, + { + name: 'WebSearchSource', + declaration: 'export interface WebSearchSource {\n readonly url: string;\n readonly title?: string;\n readonly snippet?: string;\n readonly publishedAt?: string;\n}', + }, +] + +/** The inherited `ctx` surface (cordis core + loader/hmr/timer), in curated order. */ +export const INHERITED_CTX_API: readonly InheritedApiEntry[] = [ + { name: 'ctx.on / ctx.once', summary: 'Register an event listener (disposable).' }, + { name: 'ctx.emit / ctx.parallel / ctx.serial / ctx.bail / ctx.waterfall', summary: 'Dispatch an event (sync / awaited / first-bail / veto-chain).' }, + { name: 'ctx.plugin / ctx.inject', summary: 'Load a plugin / declare required services.' }, + { name: 'ctx.effect', summary: 'Register a disposable side effect tied to the fiber.' }, + { name: 'ctx.get / ctx.set / ctx.provide / ctx.accessor / ctx.mixin', summary: 'Low-level service-store access and binding.' }, + { name: 'ctx.extend / ctx.isolate / ctx.intercept', summary: 'Derive a child context (scoped services / isolation / interception).' }, + { name: 'ctx.root / ctx.scope / ctx.fiber / ctx.registry / ctx.reflect / ctx.events / ctx.logger', summary: 'Ambient handles onto the running context graph.' }, + { name: 'ctx.timer (+ interval / timeout / throttle / debounce / setTimeout / setInterval)', summary: 'Disposable timer helpers. The `timer` key is provided at runtime; the six helpers are mixed onto ctx directly (declared via Pick).' }, + { name: 'ctx.loader', summary: 'The config Loader that booted the app (present under the loader).' }, + { name: 'ctx.hmr', summary: 'The hot-module-reload watcher (present under the hmr plugin).' }, +] diff --git a/packages/cordis/tool-cordis/src/fiber-state.ts b/packages/cordis/tool-cordis/src/fiber-state.ts new file mode 100644 index 0000000000..e46700c387 --- /dev/null +++ b/packages/cordis/tool-cordis/src/fiber-state.ts @@ -0,0 +1,39 @@ +/** + * Runtime mirror of the cordis `FiberState` const enum plus human-readable + * labels, shared by the mount lifecycle (state reporting) and the inspect + * renderers (tree and mount-table labels). + * + * Cordis exposes `FiberState` as a `const enum`: there is no runtime object for + * Node's type-stripping runner to import, so the members are mirrored here as + * values — each typed (via the type-only import) as the cordis enum member it + * mirrors, so enum-typed reads like `fiber.state` compare against them under a + * shared enum type. Source of truth: vendor/cordis/src/fiber.ts (pinned; drift + * only happens through a deliberate vendor sync). + * + * @module @deepseek-ai/dsh-tool-cordis/fiber-state + */ + +import type { FiberState as FiberStateEnum } from 'cordis' + +/** Value mirror of the cordis `FiberState` const enum (see the module doc for why a mirror exists). */ +export const FiberState = { + PENDING: 0 as FiberStateEnum.PENDING, + LOADING: 1 as FiberStateEnum.LOADING, + ACTIVE: 2 as FiberStateEnum.ACTIVE, + FAILED: 3 as FiberStateEnum.FAILED, + DISPOSED: 4 as FiberStateEnum.DISPOSED, + UNLOADING: 5 as FiberStateEnum.UNLOADING, +} as const + +/** The cordis `FiberState` enum type, re-exported so mirror consumers need one import. */ +export type FiberState = FiberStateEnum + +/** Human-readable label for each {@link FiberState}, keyed by member (inlining-safe — no reverse mapping). */ +export const STATE_LABELS: Record = { + [FiberState.PENDING]: 'pending', + [FiberState.LOADING]: 'loading', + [FiberState.ACTIVE]: 'active', + [FiberState.FAILED]: 'failed', + [FiberState.DISPOSED]: 'disposed', + [FiberState.UNLOADING]: 'unloading', +} diff --git a/packages/cordis/tool-cordis/src/guard.ts b/packages/cordis/tool-cordis/src/guard.ts new file mode 100644 index 0000000000..09d804771f --- /dev/null +++ b/packages/cordis/tool-cordis/src/guard.ts @@ -0,0 +1,199 @@ +/** + * The registration boundary between sandboxed mount code and the real runtime: + * SchemaSpec validation with teaching errors, the marker-guarded + * `harness.defineTool` / `harness.registerTool` pair, the guarded `ctx` proxy a + * mounted plugin receives, and the plugin-shape helpers the mount lifecycle + * narrows sandbox return values with. + * + * Two realm facts drive the design. Objects built inside the vm carry the vm + * realm's `Object.prototype`, and the session log's append-time plainness check + * (`dsh-session`'s `isJsonValue`, a prototype-identity comparison) rejects + * foreign-realm data — so every dynamic tool's `execute` return is JSON + * round-tripped into the host realm before it reaches the registry. And a + * malformed tool schema must fail at REGISTRATION, not when a later request + * assembles it — so dynamic `ctx.tools.register` calls accept only definitions + * produced by the sandbox's `harness.defineTool`, which asserts the SchemaSpec + * DSL up front. + * + * @module @deepseek-ai/dsh-tool-cordis/guard + */ + +import type { Context, Plugin } from 'cordis' +import { defineTool } from '@deepseek-ai/dsh-tools' +import type { ToolDefinition, ToolExecuteReturn } from '@deepseek-ai/dsh-tools' + +const DYNAMIC_TOOL = Symbol('tool-cordis.dynamic-tool') +const SCHEMA_TYPES = new Set(['string', 'number', 'boolean', 'object', 'array']) + +type DynamicToolDefinition = ToolDefinition & { [DYNAMIC_TOOL]: true } +type DynamicToolMarker = { [DYNAMIC_TOOL]?: unknown } + +function isPlainRecord(value: unknown): value is Record { + return Object.prototype.toString.call(value) === '[object Object]' +} + +/** Assert a sandbox-provided `parameters` value is a SchemaSpec object, with a teaching error for the common JSON-Schema mistake. */ +function assertSchemaSpec(value: unknown): void { + if (!isPlainRecord(value)) { + throw new Error('harness.defineTool parameters must be a SchemaSpec object') + } + if (value.type === 'object' && isPlainRecord(value.properties)) { + throw new Error( + 'harness.defineTool parameters use the SchemaSpec DSL (NOT JSON Schema).\n' + + ' ✗ { type: \'object\', properties: { name: { type: \'string\' } }, required: [\'name\'] }\n' + + ' ✓ { name: { type: \'string\', required: true } }\n' + + 'Remove the outer { type: \'object\', properties, required } wrapper; ' + + 'each key IS a property directly on the parameters object.', + ) + } + for (const [key, prop] of Object.entries(value)) { + assertSchemaProp(prop, `parameters.${key}`) + } +} + +function assertSchemaProp(value: unknown, path: string): void { + if (!isPlainRecord(value)) { + throw new Error(`harness.defineTool ${path} must be a SchemaSpec property object`) + } + if (!SCHEMA_TYPES.has(value.type)) { + throw new Error(`harness.defineTool ${path} must declare a valid type`) + } + if (value.required !== undefined && value.required !== true) { + throw new Error(`harness.defineTool ${path}.required must be true when present`) + } + if (value.properties !== undefined) { + if (value.type !== 'object') { + throw new Error(`harness.defineTool ${path}.properties is only valid for type "object"`) + } + assertSchemaSpec(value.properties) + } + if (value.items !== undefined) { + if (value.type !== 'array') { + throw new Error(`harness.defineTool ${path}.items is only valid for type "array"`) + } + assertSchemaProp(value.items, `${path}.items`) + } +} + +function markDynamicTool(tool: ToolDefinition): DynamicToolDefinition { + Object.defineProperty(tool, DYNAMIC_TOOL, { value: true }) + return tool as DynamicToolDefinition +} + +function assertDynamicTool(tool: unknown): asserts tool is DynamicToolDefinition { + if (!isPlainRecord(tool) || (tool as DynamicToolMarker)[DYNAMIC_TOOL] !== true) { + throw new Error('dynamic tool registration must use a tool returned by harness.defineTool(...)') + } +} + +/** + * The `harness.defineTool` handed into the sandbox: the real DSL, with the + * tool's `execute` return normalized into the host realm via a JSON round-trip + * (see the module doc). The round-trip also projects the return onto exactly + * what the log would durably store, so a non-JSON-serializable return surfaces + * as that one call's error instead of poisoning the turn. + * @param options - the standard `defineTool` options, with `parameters` asserted against the SchemaSpec DSL before the DSL sees them. + * @returns the marker-tagged definition `harness.registerTool` (and the guarded `ctx.tools.register`) accepts. + */ +export function sandboxDefineTool(options: Parameters[0]): ToolDefinition { + assertSchemaSpec((options as { parameters?: unknown }).parameters) + const tool = defineTool(options) + const execute = tool.execute.bind(tool) + return markDynamicTool({ + ...tool, + async execute(args, exec) { + return JSON.parse(JSON.stringify(await execute(args, exec))) as ToolExecuteReturn + }, + }) +} + +/** + * The `harness.registerTool` handed into the sandbox: registers a + * marker-verified dynamic tool on the given context's registry. + * @param ctx - the (guarded) context whose `tools` service receives the tool. + * @param tool - a definition produced by {@link sandboxDefineTool}; anything else is rejected. + * @returns the registry disposer for the registration. + */ +export function sandboxRegisterTool(ctx: Context, tool: unknown): () => void { + assertDynamicTool(tool) + return ctx.tools.register(tool) +} + +function bindMethod(value: unknown, target: object): unknown { + if (typeof value !== 'function') return value + return (...args: unknown[]): unknown => Reflect.apply(value, target, args) as unknown +} + +function guardedContext(ctx: Context): Context { + const tools = new Proxy(ctx.tools, { + get(target, prop) { + if (prop === 'register') { + return (tool: unknown): () => void => sandboxRegisterTool(ctx, tool) + } + const value = Reflect.get(target, prop, target) as unknown + return bindMethod(value, target) + }, + }) + return new Proxy(ctx, { + get(target, prop) { + if (prop === 'tools') return tools + if (prop === 'get') { + return (service: string): unknown => service === 'tools' ? tools : target.get(service) + } + const value = Reflect.get(target, prop, target) as unknown + return bindMethod(value, target) + }, + }) +} + +/** + * Narrow an arbitrary sandbox return value to a mountable cordis plugin: a + * function, or an object with an `apply` function. (A bare function passes the + * first arm, so the object arm never sees `Function.prototype.apply`.) + * @param value - whatever the mount code returned. + * @returns whether the value is mountable via `ctx.plugin`. + */ +export function isPlugin(value: unknown): value is Plugin { + if (typeof value === 'function') return true + return typeof value === 'object' && value !== null + && typeof (value as { apply?: unknown }).apply === 'function' +} + +/** + * Wrap a plugin so its `apply` receives a guarded context (`tools.register` + * only accepts tools from `harness.defineTool`). Both function-form and + * object-form plugins go through the same guard; everything else on the + * context — `on`, `provide`, `inject` resolution — passes through with correct + * `this` binding, so cross-mount provide/inject works unmodified. + * @param plugin - the plugin the mount code returned. + * @returns an equivalent plugin whose `apply` sees the guarded context. + */ +export function guardedPlugin(plugin: Plugin): Plugin { + if (typeof plugin === 'function') { + const functionPlugin = plugin as (ctx: Context, config?: unknown) => unknown + return { + name: pluginName(plugin), + apply(ctx: Context, config?: unknown) { + return functionPlugin(guardedContext(ctx), config) + }, + } + } + const objectPlugin = plugin as { apply(ctx: Context, config?: unknown): unknown } + return { + ...plugin, + apply(ctx: Context, config?: unknown) { + return objectPlugin.apply(guardedContext(ctx), config) + }, + } +} + +/** + * Display name for a mounted plugin: its `name` property, else anonymous. + * @param plugin - the plugin the mount code returned. + * @returns the human-readable name used in mount results and inspect output. + */ +export function pluginName(plugin: Plugin): string { + const named = (plugin as { name?: unknown }).name + if (typeof named === 'string' && named.length > 0) return named + return '' +} diff --git a/packages/cordis/tool-cordis/src/index.ts b/packages/cordis/tool-cordis/src/index.ts new file mode 100644 index 0000000000..d4492b4768 --- /dev/null +++ b/packages/cordis/tool-cordis/src/index.ts @@ -0,0 +1,228 @@ +/** + * The self-referential cordis toolset: three model-facing tools that let the + * agent inspect and MODIFY the live cordis runtime it is running inside. + * + * - `cordis_inspect` — read-only: provided services, the plugin fiber tree + * (rendered as an ASCII tree), registered tools, the dynamic mounts, and the + * catalog-backed `api` / `events` references. + * - `cordis_mount` — evaluate model-written code in a `node:vm` sandbox; the + * code returns a cordis plugin, which is mounted as a child of a dedicated + * `cordis-dynamic` group fiber and tracked under an id (`dyn-1`, `dyn-2`, …). + * - `cordis_unmount` — dispose one dynamic mount by id, awaiting quiescence. + * + * Everything the model's plugin registers (listeners via `ctx.on`, tools via + * `harness.registerTool`, services via `ctx.provide`) is an effect on the + * dynamic fiber, so unmounting — or disposing this plugin itself (HMR) — cleans + * it all up through the ordinary cordis lifecycle. The group fiber exists + * exactly so the dynamic mounts form ONE subtree: visible as a unit in the + * inspect tree and disposed as a unit with this plugin. Design home: + * docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md. + * + * The vm sandbox guards against ACCIDENTAL global pollution only — it is not a + * security boundary. The `ctx` handed to the mounted plugin's `apply` is the + * real, fully privileged runtime handle; that is the point of the toolset, so + * a deployment loads this plugin as deliberately as it grants a bash tool. + * + * Plugin export shape: named exports, NO default. The cordis Loader's + * `unwrapExports` does `exports.default ?? exports`, so a stray default would + * collapse the module to the bare `apply` and drop `inject`, crashing at load + * (see docs/postmortem/0001). + * + * @module @deepseek-ai/dsh-tool-cordis + */ + +import type { Context, Fiber } from 'cordis' +import z from 'schemastery' +import { defineTool } from '@deepseek-ai/dsh-tools' +import { STATE_LABELS } from './fiber-state.ts' +import { isPlugin, pluginName } from './guard.ts' +import { describeApi, describeDynamic, describeEvents, describePluginTree, describeServices, describeTools } from './inspect.ts' +import { missingServices, mountDynamic } from './mount.ts' +import type { DynamicMount } from './mount.ts' +import { presentInspectCall, presentMountCall, presentUnmountCall } from './present.ts' +import { createSandbox, evaluateMountCode } from './sandbox.ts' + +export const name = 'tool-cordis' +export const inject = ['tools'] + +/** Config for the tool-cordis plugin: the sandbox evaluation bound. */ +export interface Config { + /** + * Milliseconds the SYNCHRONOUS portion of mount code may run in the vm + * before evaluation is aborted (default 5000). An async body escapes this + * bound — see docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md for the trust stance. + */ + vmTimeoutMs?: number +} + +/** Schemastery validator for {@link Config}: `vmTimeoutMs` must be at least 1 (defaults to 5000). */ +export const Config: z = z.object({ + vmTimeoutMs: z.number().min(1).default(5000), +}) + +/** {@link Config} with every defaulted field present, as schemastery resolves it at load. */ +type ResolvedConfig = Required + +/** + * Mount the three cordis tools on `ctx.tools` and create the `cordis-dynamic` + * group fiber every dynamic mount hangs under. + * @param ctx - the plugin context (`tools` injected). + * @param config - the schemastery-resolved {@link Config}. + */ +export function apply(ctx: Context, config: Config): void { + const { vmTimeoutMs } = config as ResolvedConfig + // The one group fiber every dynamic mount hangs under. Mounted here (a child + // of this plugin's fiber) so disposing tool-cordis cascades over the whole + // dynamic subtree — the ordinary parent→child fiber lifecycle, nothing extra. + const group = ctx.plugin({ name: 'cordis-dynamic', apply: () => {} }) + + const mounts = new Map() + let nextId = 1 + + /** The dynamic-mount id for a fiber, when that fiber is a tracked mount. */ + function mountIdOf(fiber: Fiber): string | undefined { + for (const [id, mount] of mounts) { + if (mount.fiber === fiber) return id + } + return undefined + } + + ctx.tools.register(defineTool({ + name: 'cordis_inspect', + description: + 'Inspect the live cordis runtime that is running THIS agent. Read-only. ' + + 'Sections: `services` (every provided ctx service and the plugin fiber that owns it), ' + + '`plugins` (the whole plugin fiber tree with lifecycle states, as an ASCII tree — ' + + 'dynamic mounts appear under the `cordis-dynamic` group with their ids), ' + + '`tools` (the model-facing tools currently registered, i.e. what you can call), ' + + '`dynamic` (plugins you mounted via cordis_mount: id, name, state, provided services, awaited services), ' + + '`api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), ' + + '`events` (every harness event with its dispatch mode and exact signature — pick listener targets here). ' + + 'Omit `what` to get all six sections.', + parameters: { + what: { + type: 'string', + enum: ['services', 'plugins', 'tools', 'dynamic', 'api', 'events'], + description: 'Limit the report to one section. Omit for all sections.', + }, + }, + execute(args): Promise<{ type: 'text'; text: string }[]> { + const sections: [heading: string, body: () => string[]][] = [ + ['services', () => describeServices(ctx)], + ['plugins', () => describePluginTree(ctx, mountIdOf)], + ['tools', () => describeTools(ctx)], + ['dynamic', () => describeDynamic(ctx, mounts)], + ['api', () => describeApi(ctx)], + ['events', () => describeEvents()], + ] + const selected = sections.filter(([heading]) => args.what === undefined || args.what === heading) + const text = selected + .map(([heading, body]) => `## ${heading}\n${body().join('\n')}`) + .join('\n\n') + return Promise.resolve([{ type: 'text', text }]) + }, + presentCall: presentInspectCall, + })) + + ctx.tools.register(defineTool({ + name: 'cordis_mount', + description: + 'Mount a NEW cordis plugin into the live runtime that is running THIS agent ' + + '(self-modification). `code` runs as the body of an async JavaScript function ' + + 'in an isolated sandbox and MUST `return` a plugin. Two forms: ' + + 'FUNCTION form `return (ctx) => { … }` — cannot declare inject, uses whatever ' + + 'services are on the parent context, and accessing a service without inject ' + + '(e.g. ctx.bash) throws; use it only when you need no injected services. ' + + 'OBJECT form `return { name?, inject: [\'bash\', \'llm\', …], apply(ctx) { … } }` ' + + '— declares dependencies, and cordis activates the plugin only after the ' + + 'services exist; PREFER this form for any plugin that needs bash, llm, sessions, etc. ' + + 'BEFORE calling a service from your code, read cordis_inspect what:"api" — it lists ' + + 'method signatures AND the type shapes of their arguments/returns (do not guess a ' + + 'field\'s type; e.g. a bash run\'s stdout is an object, not a string). ' + + 'Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe ' + + 'events (see cordis_inspect what:"events"), or call ' + + '`harness.registerTool(ctx, harness.defineTool({ name, description, parameters: ' + + '{ text: { type: \'string\', required: true } }, async execute(args) { … } }))` ' + + 'to give yourself a new tool — it becomes callable on your NEXT step. A ' + + 'tool\'s `execute` MUST return an ARRAY of content blocks, e.g. `return ' + + '[{ type: \'text\', text: someString }]` — never a bare string. ' + + 'Mounts can COMPOSE: one plugin may `ctx.provide(\'name\', value)` a service and ' + + 'another may declare `inject: [\'name\']` to consume it — the consumer stays pending ' + + 'until the provider exists and returns to pending when the provider is unmounted. ' + + 'Everything registered inside `apply` is cleaned up automatically on unmount. ' + + 'Sandbox globals: `console` (tagged `[cordis:]`, writes through to the harness ' + + 'terminal), `harness.defineTool`, `harness.registerTool`, ' + + '`btoa`, `atob`, `TextEncoder`, `TextDecoder`; ' + + 'there is no `require`, `process`, `Buffer`, or network. ' + + 'Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). ' + + 'Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a ' + + 'trailing `next` callback which MUST be called — returning without `next()` ' + + 'VETOES the call; prefer plain notification events unless you intend to ' + + 'intercept. (2) Never await something that only resolves after the current ' + + 'turn (your code runs INSIDE a tool call of that turn — it would deadlock). ' + + '(3) The sandbox prevents accidental global pollution, not malice: `ctx` is ' + + 'the real, fully privileged runtime handle.', + parameters: { + code: { + type: 'string', + required: true, + description: 'Body of an async JS function; must `return` the plugin to mount.', + }, + }, + async execute(args) { + const id = `dyn-${nextId++}` + const sandbox = createSandbox(id) + const evaluated = await evaluateMountCode(sandbox, args.code, id, vmTimeoutMs) + if (!isPlugin(evaluated)) { + if (evaluated === undefined) { + throw new Error( + 'mount code returned `undefined` — did you forget `return`?\n' + + ' ✓ return (ctx) => { … }\n' + + ' ✓ return { name: \'…\', inject: […], apply(ctx) { … } }', + ) + } + throw new Error( + 'mount code must `return` a plugin: a function, or an object with an `apply(ctx)` method', + ) + } + const fiber = await mountDynamic(group, evaluated) + mounts.set(id, { fiber, pluginName: pluginName(evaluated) }) + // A settled fiber that is not ACTIVE is waiting on unsatisfied inject — + // legal cordis semantics (it activates when the service appears), so keep + // it mounted but tell the model what it is waiting for. + const missing = missingServices(ctx, fiber) + const state = STATE_LABELS[fiber.state] + const note = missing.length > 0 + ? ` — waiting for service(s): ${missing.join(', ')} (activates when provided)` + : '' + return [{ type: 'text', text: `mounted ${id} (plugin "${pluginName(evaluated)}", state: ${state}${note})` }] + }, + presentCall: presentMountCall, + })) + + ctx.tools.register(defineTool({ + name: 'cordis_unmount', + description: + 'Dispose a plugin previously mounted with cordis_mount, by id. All its ' + + 'registrations (event listeners, tools, services) are cleaned up through ' + + 'the cordis effect lifecycle. Returns only after disposal has fully ' + + 'completed (quiescence, not just a request to stop).', + parameters: { + id: { + type: 'string', + required: true, + description: 'The dynamic mount id returned by cordis_mount (e.g. "dyn-1").', + }, + }, + async execute(args) { + const mount = mounts.get(args.id) + if (!mount) { + throw new Error(`no dynamic plugin with id "${args.id}" (list mounts with cordis_inspect what:"dynamic")`) + } + await mount.fiber.dispose() + mounts.delete(args.id) + return [{ type: 'text', text: `unmounted ${args.id} (plugin "${mount.pluginName}")` }] + }, + presentCall: presentUnmountCall, + })) +} diff --git a/packages/cordis/tool-cordis/src/inspect.ts b/packages/cordis/tool-cordis/src/inspect.ts new file mode 100644 index 0000000000..dfcc9a0c6b --- /dev/null +++ b/packages/cordis/tool-cordis/src/inspect.ts @@ -0,0 +1,225 @@ +/** + * Read-only renderers over the live runtime for `cordis_inspect`: the service + * list, the plugin fiber tree (ASCII), the registered tools, the dynamic-mount + * table (with per-mount provides/waits), and the catalog-backed `api` / + * `events` sections. Every renderer is a pure function of the runtime handles + * it receives — no session state, no clock — so inspect output is exactly the + * runtime it describes. + * + * @module @deepseek-ai/dsh-tool-cordis/inspect + */ + +import type { Context, Fiber } from 'cordis' +import { EVENT_API, INHERITED_CTX_API, SERVICE_API, TYPE_API } from './api-catalog.ts' +import type { EventApiEntry, InheritedApiEntry, ServiceApiEntry, TypeApiEntry } from './api-catalog.ts' +import { FiberState, STATE_LABELS } from './fiber-state.ts' +import { missingServices } from './mount.ts' +import type { DynamicMount } from './mount.ts' + +/** The live service registrations from `ctx.reflect.store` (map + filter keeps the possibly-undefined index read branch-free). */ +function liveImpls(ctx: Context): { name: string; fiber: Fiber }[] { + const store = ctx.reflect.store + return Object.getOwnPropertySymbols(store) + .map(key => store[key]) + .filter((impl): impl is NonNullable => impl !== undefined) +} + +/** Whether `fiber` is `root` itself or mounted anywhere inside `root`'s subtree. */ +function withinFiber(fiber: Fiber, root: Fiber): boolean { + let current = fiber + while (true) { + if (current === root) return true + const parent = current.parent.fiber + if (parent === current) return false + current = parent + } +} + +/** The service names provided by a mount's fiber subtree, sorted. */ +function providedBy(ctx: Context, fiber: Fiber): string[] { + return liveImpls(ctx) + .filter(impl => withinFiber(impl.fiber, fiber)) + .map(impl => impl.name) + .sort() +} + +/** + * The `services` section: every provided ctx service with its owning fiber, + * annotating non-active owners with their lifecycle state. + * @param ctx - the runtime to enumerate. + * @returns one line per service, or a single placeholder line when none are provided. + */ +export function describeServices(ctx: Context): string[] { + const lines = liveImpls(ctx).map((impl) => { + const active = impl.fiber.state === FiberState.ACTIVE + return `- ${impl.name} (provided by ${impl.fiber.name}${active ? '' : `, ${STATE_LABELS[impl.fiber.state]}`})` + }) + return lines.length > 0 ? lines : ['(no services provided)'] +} + +/** The tree node shape {@link renderTree} draws: one line per fiber, children indented. */ +interface TreeNode { + label: string + children: TreeNode[] +} + +/** Render a node list as an ASCII tree (`├─`/`└─` box drawing). */ +function renderTree(nodes: TreeNode[], prefix = ''): string[] { + return nodes.flatMap((node, index) => { + const last = index === nodes.length - 1 + const line = `${prefix}${last ? '└─' : '├─'} ${node.label}` + const childPrefix = `${prefix}${last ? ' ' : '│ '}` + return [line, ...renderTree(node.children, childPrefix)] + }) +} + +/** + * The `plugins` section: every fiber the registry knows, rebuilt into the + * parent→child tree from each fiber's mounting context and rendered as an + * ASCII tree with lifecycle states. Fibers whose parent fiber is outside the + * registry (i.e. mounted on the root context) become roots. + * @param ctx - the runtime whose registry is walked. + * @param mountIdOf - resolves a fiber to its dynamic-mount id, so mounts render as `dyn-: name`. + * @returns the tree lines, starting at the synthetic `root` line. + */ +export function describePluginTree(ctx: Context, mountIdOf: (fiber: Fiber) => string | undefined): string[] { + const fibers = new Set() + for (const runtime of ctx.registry.values()) { + for (const fiber of runtime.fibers) fibers.add(fiber) + } + const childrenOf = new Map() + const roots: Fiber[] = [] + for (const fiber of fibers) { + const parent = fiber.parent.fiber + if (fibers.has(parent)) { + const siblings = childrenOf.get(parent) ?? [] + siblings.push(fiber) + childrenOf.set(parent, siblings) + } else { + roots.push(fiber) + } + } + const byUid = (a: Fiber, b: Fiber): number => (a.uid ?? Infinity) - (b.uid ?? Infinity) + const toNode = (fiber: Fiber): TreeNode => { + const id = mountIdOf(fiber) + const label = `${id ? `${id}: ` : ''}${fiber.name} [${STATE_LABELS[fiber.state]}]` + const children = (childrenOf.get(fiber) ?? []).sort(byUid).map(toNode) + return { label, children } + } + return ['root', ...renderTree(roots.sort(byUid).map(toNode))] +} + +/** + * The `tools` section: the model-facing tool names currently registered. + * @param ctx - the runtime whose tool registry is read. + * @returns one line per registered tool. + */ +export function describeTools(ctx: Context): string[] { + return ctx.tools.schemas().map(schema => `- ${schema.name}`) +} + +/** + * The `dynamic` section: one line per mount with id, plugin name, lifecycle + * state, the services its subtree provides, and — for a pending mount — the + * services it waits for. + * @param ctx - the runtime the mounts live in. + * @param mounts - the tracked mounts, in mount order. + * @returns one line per mount, or a single placeholder line when none exist. + */ +export function describeDynamic(ctx: Context, mounts: ReadonlyMap): string[] { + if (mounts.size === 0) return ['(no dynamic plugins mounted)'] + return [...mounts].map(([id, mount]) => { + const provides = providedBy(ctx, mount.fiber) + const waiting = missingServices(ctx, mount.fiber) + const providesNote = provides.length > 0 ? ` — provides: ${provides.join(', ')}` : '' + const waitingNote = waiting.length > 0 ? ` — waiting for: ${waiting.join(', ')}` : '' + return `- ${id}: ${mount.pluginName} [${STATE_LABELS[mount.fiber.state]}]${providesNote}${waitingNote}` + }) +} + +/** + * The transitive closure of catalogued type shapes referenced (word-bounded) + * by the seed texts — the runtime scoping that keeps the `api` section to the + * shapes the LIVE signatures actually mention. + */ +function typeClosure(seeds: string[], types: readonly TypeApiEntry[]): TypeApiEntry[] { + const included = new Map() + let frontier = seeds + while (frontier.length > 0) { + const next: string[] = [] + for (const entry of types) { + if (included.has(entry.name)) continue + const pattern = new RegExp(`\\b${entry.name}\\b`) + if (frontier.some(text => pattern.test(text))) { + included.set(entry.name, entry) + next.push(entry.declaration) + } + } + frontier = next + } + return [...included.values()].sort((a, b) => a.name.localeCompare(b.name)) +} + +/** + * The `api` section: the generated service catalog intersected with the LIVE + * runtime — catalogued live services render summary + method signatures, live + * services without a catalog entry (e.g. ones another mount provides) render + * name + owning fiber, catalog services that are not running are listed + * tersely, the type shapes the live signatures reference follow, and the + * inherited `ctx` surface closes the section. + * @param ctx - the runtime to intersect the catalog with. + * @param api - the service catalog (the generated one by default; injectable for tests). + * @param inherited - the inherited `ctx` surface lines (generated by default; injectable for tests). + * @param types - the type-shape catalog (generated by default; injectable for tests). + * @returns the section lines. + */ +export function describeApi( + ctx: Context, + api: readonly ServiceApiEntry[] = SERVICE_API, + inherited: readonly InheritedApiEntry[] = INHERITED_CTX_API, + types: readonly TypeApiEntry[] = TYPE_API, +): string[] { + const live = new Map() + for (const impl of liveImpls(ctx)) live.set(impl.name, impl.fiber.name) + const lines: string[] = [] + const liveMethodTexts: string[] = [] + for (const entry of api) { + if (!live.has(entry.key)) continue + lines.push(`- ${entry.key} — ${entry.summary}`) + for (const method of entry.methods) { + lines.push(` ${method}`) + liveMethodTexts.push(method) + } + } + const catalogued = new Set(api.map(entry => entry.key)) + for (const [name, fiber] of [...live].sort(([a], [b]) => a.localeCompare(b))) { + if (!catalogued.has(name)) lines.push(`- ${name} (provided by ${fiber}, no catalog entry)`) + } + const notRunning = api.filter(entry => !live.has(entry.key)).map(entry => entry.key) + if (notRunning.length > 0) lines.push(`not running (loadable services with no live provider): ${notRunning.join(', ')}`) + const shapes = typeClosure(liveMethodTexts, types) + if (shapes.length > 0) { + lines.push('type shapes (referenced by the signatures above — read these before assuming a field is a string):') + for (const shape of shapes) { + for (const declLine of shape.declaration.split('\n')) lines.push(` ${declLine}`) + } + } + lines.push('inherited ctx API:') + for (const entry of inherited) lines.push(`- ${entry.name} — ${entry.summary}`) + return lines +} + +/** + * The `events` section: every harness event with its dispatch mode, one-line + * summary, and exact signature, closed by the waterfall caution. + * @param events - the event catalog (the generated one by default; injectable for tests). + * @returns the section lines. + */ +export function describeEvents(events: readonly EventApiEntry[] = EVENT_API): string[] { + const lines = events.flatMap(event => [ + `- ${event.name} [${event.mode}] — ${event.summary}`, + ` ${event.signature}`, + ]) + lines.push('waterfall listeners receive a trailing next() and MUST call it to delegate — returning without next() vetoes the chain.') + return lines +} diff --git a/packages/cordis/tool-cordis/src/mount.ts b/packages/cordis/tool-cordis/src/mount.ts new file mode 100644 index 0000000000..a222e81da1 --- /dev/null +++ b/packages/cordis/tool-cordis/src/mount.ts @@ -0,0 +1,64 @@ +/** + * Dynamic-mount lifecycle over the `cordis-dynamic` group fiber: settle a + * sandbox-produced plugin as a child fiber (never leaving a failed fiber + * mounted), and report the services a settled-but-pending fiber still waits + * for. Disposal needs no helper — a mount unwinds through an ordinary awaited + * `fiber.dispose()`, because everything the plugin registered is an effect on + * its fiber. + * + * @module @deepseek-ai/dsh-tool-cordis/mount + */ + +import type { Context, Fiber, Plugin } from 'cordis' +import { guardedPlugin } from './guard.ts' + +/** One tracked dynamic mount: the fiber plus the display name captured at mount time. */ +export interface DynamicMount { + /** The child fiber under the `cordis-dynamic` group. */ + fiber: Fiber + /** The plugin's display name at mount time (its `name`, else ``). */ + pluginName: string +} + +/** + * Mount a plugin under the group fiber and settle it. The group fiber loads + * asynchronously right after the owning plugin's `apply`, so it is awaited + * before hanging a child off its context. The child fiber's `await()` settles + * its lifecycle work and rethrows a startup error (e.g. a throwing `apply`); + * on error the fiber is disposed first — a failed mount never lingers. + * @param group - the `cordis-dynamic` group fiber every mount hangs under. + * @param plugin - the plugin the sandbox returned; wrapped with the registration guard before mounting. + * @returns the settled child fiber (possibly pending on unsatisfied `inject`). + */ +export async function mountDynamic(group: Fiber, plugin: Plugin): Promise { + await group.await() + const fiber = group.ctx.plugin(guardedPlugin(plugin)) + try { + await fiber.await() + } catch (error) { + await fiber.dispose() + const message = error instanceof Error ? error.message : String(error) + // The commonest startup collision is remounting a NEW version of a tool + // while the old mount still holds the name — teach the replace recipe. + if (message.includes('already registered')) { + throw new Error( + `${message} — to REPLACE something an earlier mount registered, first cordis_unmount that mount's id ` + + '(find it with cordis_inspect what:"dynamic"), then mount the new version.', + ) + } + throw error instanceof Error ? error : new Error(message) + } + return fiber +} + +/** + * The services a fiber declared in `inject` that do not exist yet — a settled + * fiber that is not active is waiting on exactly these (legal cordis + * semantics: it activates when the service appears). + * @param ctx - the context to resolve service existence against. + * @param fiber - the mount fiber whose `inject` declarations are checked. + * @returns the missing service names, in declaration order. + */ +export function missingServices(ctx: Context, fiber: Fiber): string[] { + return Object.keys(fiber.inject).filter(service => ctx.get(service) === undefined) +} diff --git a/packages/cordis/tool-cordis/src/present.ts b/packages/cordis/tool-cordis/src/present.ts new file mode 100644 index 0000000000..614b070193 --- /dev/null +++ b/packages/cordis/tool-cordis/src/present.ts @@ -0,0 +1,51 @@ +/** + * ACP render intents for the three cordis tools — all `generic` cards, decided + * up front as part of the tool design. Presenters are pure functions of the + * call arguments (they run on replay too): no I/O, no session state, no clock. + * No `presentResult` overrides exist — the tools' text results are their + * correct completed rendering. + * + * @module @deepseek-ai/dsh-tool-cordis/present + */ + +import type { GenericCallView } from '@deepseek-ai/dsh-tools' + +/** + * The `cordis_inspect` call card: a read, titled with the requested section. + * @param args - the validated call arguments. + * @returns the generic card the ACP bridge renders. + */ +export function presentInspectCall(args: { what?: string }): GenericCallView { + return { + card: 'generic', + kind: 'read', + title: args.what === undefined ? 'Inspect cordis runtime' : `Inspect cordis runtime: ${args.what}`, + } +} + +/** + * The `cordis_mount` call card: an execute carrying the mount code as raw input. + * @param args - the validated call arguments. + * @returns the generic card the ACP bridge renders. + */ +export function presentMountCall(args: { code: string }): GenericCallView { + return { + card: 'generic', + kind: 'execute', + title: 'Mount plugin into live cordis runtime', + rawInput: { code: args.code }, + } +} + +/** + * The `cordis_unmount` call card: a delete, titled with the mount id. + * @param args - the validated call arguments. + * @returns the generic card the ACP bridge renders. + */ +export function presentUnmountCall(args: { id: string }): GenericCallView { + return { + card: 'generic', + kind: 'delete', + title: `Unmount ${args.id}`, + } +} diff --git a/packages/cordis/tool-cordis/src/sandbox.ts b/packages/cordis/tool-cordis/src/sandbox.ts new file mode 100644 index 0000000000..4d3eb16dfc --- /dev/null +++ b/packages/cordis/tool-cordis/src/sandbox.ts @@ -0,0 +1,153 @@ +/** + * The `node:vm` sandbox `cordis_mount` code evaluates in: a fresh realm whose + * globals are a tagged write-through console, the `harness` registration + * helpers, and the encoding primitives a bare vm context lacks. The sandbox + * guards against ACCIDENTAL global pollution only — it is not a security + * boundary; the `ctx` a mounted plugin's `apply` later receives is the real, + * fully privileged runtime handle, and that is the point of the toolset. + * + * @module @deepseek-ai/dsh-tool-cordis/sandbox + */ + +import { createContext, runInContext } from 'node:vm' +import { sandboxDefineTool, sandboxRegisterTool } from './guard.ts' + +/** + * A write-through console for one sandbox, tagging every line with the mount + * id. Write-through (host stdout/stderr), NOT buffered into the tool result: + * a mounted listener fires long after the mount call returned, and its output + * must land somewhere the user can see — for the stdio demo, the terminal. + */ +function taggedConsole(id: string): Record<'log' | 'info' | 'warn' | 'error' | 'debug', (...args: unknown[]) => void> { + const tag = `[cordis:${id}]` + const log = (...args: unknown[]): void => { console.log(tag, ...args) } + const error = (...args: unknown[]): void => { console.error(tag, ...args) } + return { log, info: log, warn: log, debug: log, error } +} + +/** + * Per-sandbox prelude: give the vm realm's own constructors a + * `Symbol.hasInstance` that checks BOTH realms. Model code runs against a + * fresh vm realm, but most objects it touches are HOST-realm (the `args` a + * tool's `execute` receives, event payloads a listener observes, service + * return values), so a plain `x instanceof Array` / `instanceof Object` in + * sandbox code would silently be false. The patch replaces each vm + * constructor's own `[Symbol.hasInstance]` with "ordinary check against the + * vm constructor OR the host counterpart" — the ordinary algorithm is a pure + * prototype-chain walk, so calling it with the host constructor as receiver + * needs no host-side change. ONLY vm-realm globals are modified; host + * intrinsics are passed in as values and never touched. + */ +const DUAL_REALM_INSTANCEOF_PRELUDE = ` +(hostIntrinsics) => { + 'use strict' + const ordinary = Function.prototype[Symbol.hasInstance] + for (const name of Object.keys(hostIntrinsics)) { + const VmCtor = globalThis[name] + const HostCtor = hostIntrinsics[name] + if (typeof VmCtor !== 'function' || typeof HostCtor !== 'function') continue + Object.defineProperty(VmCtor, Symbol.hasInstance, { + value: (instance) => ordinary.call(VmCtor, instance) || ordinary.call(HostCtor, instance), + configurable: true, + }) + } +} +` + +/** Run {@link DUAL_REALM_INSTANCEOF_PRELUDE} in a freshly created sandbox, handing it the host intrinsics to pair up. */ +function patchDualRealmInstanceof(sandbox: object): void { + const patch = runInContext(DUAL_REALM_INSTANCEOF_PRELUDE, sandbox) as (intrinsics: Record) => void + patch({ Object, Array, Function, Error, TypeError, RangeError, SyntaxError, Promise, RegExp, Date, Map, Set }) +} + +/** + * Build the vm context one `cordis_mount` call evaluates in: the tagged + * console, the `harness` registration helpers, the encoding primitives, and + * the dual-realm `instanceof` patch, already `createContext`-ed. + * @param id - the mount id (`dyn-`), used as the console tag and filename stem. + * @returns the contextified sandbox object to pass to {@link evaluateMountCode}. + */ +export function createSandbox(id: string): object { + const sandbox = { + console: taggedConsole(id), + harness: { defineTool: sandboxDefineTool, registerTool: sandboxRegisterTool }, + // Web APIs absent from fresh vm contexts — made available so the model + // can encode/decode base64 without Buffer (which is also absent). + btoa: (s: string) => Buffer.from(s, 'utf-8').toString('base64'), + atob: (s: string) => Buffer.from(s, 'base64').toString('utf-8'), + TextEncoder, + TextDecoder, + } + createContext(sandbox) + patchDualRealmInstanceof(sandbox) + return sandbox +} + +/** + * Cross-realm SyntaxError detection: a compile failure inside `runInContext` + * constructs its error in the SANDBOX realm, so a host `instanceof + * SyntaxError` is silently false — the `name` property is the realm-safe tag. + */ +function isSyntaxError(error: unknown): error is Error { + return typeof error === 'object' && error !== null && (error as { name?: unknown }).name === 'SyntaxError' +} + +/** + * The parse-failure context a vm `SyntaxError` carries: the vm prints the + * offending source line and a caret before the message, which is exactly what + * a model needs to self-correct — surface it instead of the bare message. + * Falls back to `String(error)` when the stack carries no such prelude. + * @param error - the `SyntaxError` (host- or sandbox-realm) thrown while compiling mount code. + * @returns the stack prefix up to and including the `SyntaxError: …` line. + */ +export function syntaxErrorContext(error: Error): string { + const lines = (error.stack ?? '').split('\n') + const messageIndex = lines.findIndex(line => line.startsWith('SyntaxError')) + if (messageIndex === -1) return String(error) + return lines.slice(0, messageIndex + 1).join('\n') +} + +/** + * Evaluate mount code as the body of an async function inside the sandbox. + * `vmTimeoutMs` only bounds the SYNCHRONOUS portion; an async body escapes it + * — acceptable under the module's trust stance. A parse failure is answered + * with the offending line + caret and a teaching hint: TypeScript syntax on + * the failing line gets the remove-annotations fix, anything else gets the + * function-body/bracket-balance reminder (models habitually close the returned + * plugin object with `});` as if it were a callback argument). + * @param sandbox - the contextified object from {@link createSandbox}. + * @param code - the model-written function body; must `return` a plugin. + * @param id - the mount id, used as the vm filename (`cordis-mount-.js`). + * @param vmTimeoutMs - the synchronous evaluation bound in milliseconds. + * @returns whatever the code returned, still un-narrowed (the mount lifecycle checks plugin shape). + */ +export async function evaluateMountCode(sandbox: object, code: string, id: string, vmTimeoutMs: number): Promise { + try { + return await runInContext( + `(async () => {\n${code}\n})()`, + sandbox, + { filename: `cordis-mount-${id}.js`, timeout: vmTimeoutMs }, + ) + } catch (error) { + if (!isSyntaxError(error)) throw error + const context = syntaxErrorContext(error) + // Scope the TypeScript heuristic to the OFFENDING line, not the whole + // code: an ` as ` inside an ordinary description string must not turn a + // plain syntax error into a misleading remove-annotations message. + const offendingLine = context.split('\n')[1] ?? '' + if (/\bas\b/.test(offendingLine)) { + throw new Error( + `mount code failed to parse:\n${context}\n` + + 'The sandbox runs plain JavaScript, not TypeScript. Remove type annotations:\n' + + ' ✗ { type: \'text\' as const, text: x }\n' + + ' ✓ { type: \'text\', text: x }', + ) + } + throw new Error( + `mount code failed to parse:\n${context}\n` + + 'Note: `code` runs as the BODY of an async function (line numbers are offset by the 1-line wrapper). ' + + 'Check bracket balance — ending the returned plugin object with `});` closes a call that was never opened; ' + + 'a plain `return { … }` ends with `}` (an optional `;`), never `)`.', + ) + } +} diff --git a/packages/cordis/tool-cordis/tests/cross-mount.spec.ts b/packages/cordis/tool-cordis/tests/cross-mount.spec.ts new file mode 100644 index 0000000000..f68eaef639 --- /dev/null +++ b/packages/cordis/tool-cordis/tests/cross-mount.spec.ts @@ -0,0 +1,105 @@ +import { describe, expect, it } from 'vitest' +import { call, CONSUMER_CODE, PROVIDER_CODE, setup, text } from './helpers.ts' + +/** + * Cross-mount composition through ordinary cordis provide/inject semantics: + * one mount provides a service, another injects it, and mount ids stay the + * lifecycle handles. Every assertion is against the WORLD — the registry, the + * service store, real tool dispatch — not the tool's own summary line. + */ + +describe('cross-mount provide/inject', () => { + it('provider first: the consumer activates immediately and its tool reaches the provided service', async () => { + const ctx = await setup() + const provider = await call(ctx, 'cordis_mount', { code: PROVIDER_CODE }) + expect(text(provider)).toContain('state: active') + + const consumer = await call(ctx, 'cordis_mount', { code: CONSUMER_CODE }) + expect(consumer.isError).toBe(false) + expect(text(consumer)).toContain('state: active') + + // The vm-realm service value is callable across mounts, and the result + // normalizes into the host realm like any dynamic tool result. + const greeted = await call(ctx, 'greet', { name: 'harness' }) + expect(greeted.isError).toBe(false) + expect(text(greeted)).toBe('hi harness') + }) + + it('consumer first: stays pending naming the missing service, then activates when the provider mounts', async () => { + const ctx = await setup() + const consumer = await call(ctx, 'cordis_mount', { code: CONSUMER_CODE }) + expect(consumer.isError).toBe(false) + expect(text(consumer)).toContain('state: pending') + expect(text(consumer)).toContain('waiting for service(s): greeter') + expect(text(await call(ctx, 'cordis_inspect', { what: 'dynamic' }))).toContain('waiting for: greeter') + expect(ctx.tools.get('greet')).toBeUndefined() + + await call(ctx, 'cordis_mount', { code: PROVIDER_CODE }) + expect(ctx.tools.get('greet')).toBeDefined() + expect(text(await call(ctx, 'greet', { name: 'late' }))).toBe('hi late') + }) + + it('unmounting the provider sends the consumer back to pending and unwinds its registrations', async () => { + const ctx = await setup() + await call(ctx, 'cordis_mount', { code: PROVIDER_CODE }) // dyn-1 + await call(ctx, 'cordis_mount', { code: CONSUMER_CODE }) // dyn-2 + expect(ctx.tools.get('greet')).toBeDefined() + + const unmounted = await call(ctx, 'cordis_unmount', { id: 'dyn-1' }) + expect(unmounted.isError).toBe(false) + expect(ctx.tools.get('greet')).toBeUndefined() + const report = text(await call(ctx, 'cordis_inspect', { what: 'dynamic' })) + expect(report).toContain('dyn-2: greeter-consumer [pending] — waiting for: greeter') + }) + + it('re-providing the service re-runs the consumer through the same guard (active again, tool back)', async () => { + const ctx = await setup() + await call(ctx, 'cordis_mount', { code: PROVIDER_CODE }) // dyn-1 + await call(ctx, 'cordis_mount', { code: CONSUMER_CODE }) // dyn-2 + await call(ctx, 'cordis_unmount', { id: 'dyn-1' }) + expect(ctx.tools.get('greet')).toBeUndefined() + + await call(ctx, 'cordis_mount', { code: PROVIDER_CODE }) // dyn-3 + expect(ctx.tools.get('greet')).toBeDefined() + expect(text(await call(ctx, 'greet', { name: 'again' }))).toBe('hi again') + expect(text(await call(ctx, 'cordis_inspect', { what: 'dynamic' }))).toContain('dyn-2: greeter-consumer [active]') + }) + + it('a duplicate provide fails loud with the owning fiber named, and the failed mount is disposed', async () => { + const ctx = await setup() + await call(ctx, 'cordis_mount', { code: PROVIDER_CODE }) + const duplicate = await call(ctx, 'cordis_mount', { code: PROVIDER_CODE }) + expect(duplicate.isError).toBe(true) + expect(text(duplicate)).toContain('has been registered') + const report = text(await call(ctx, 'cordis_inspect', { what: 'dynamic' })) + expect(report).toContain('dyn-1: greeter-provider') + expect(report).not.toContain('dyn-2') + }) + + it('inspect surfaces the linkage: provides on the provider row, the service in services and api sections', async () => { + const ctx = await setup() + await call(ctx, 'cordis_mount', { code: PROVIDER_CODE }) + await call(ctx, 'cordis_mount', { code: CONSUMER_CODE }) + + const dynamic = text(await call(ctx, 'cordis_inspect', { what: 'dynamic' })) + expect(dynamic).toContain('dyn-1: greeter-provider [active] — provides: greeter') + + const services = text(await call(ctx, 'cordis_inspect', { what: 'services' })) + expect(services).toContain('- greeter (provided by greeter-provider)') + + const api = text(await call(ctx, 'cordis_inspect', { what: 'api' })) + expect(api).toContain('- greeter (provided by greeter-provider, no catalog entry)') + }) + + it('unmounting the consumer leaves the provider and its service intact', async () => { + const ctx = await setup() + await call(ctx, 'cordis_mount', { code: PROVIDER_CODE }) // dyn-1 + await call(ctx, 'cordis_mount', { code: CONSUMER_CODE }) // dyn-2 + await call(ctx, 'cordis_unmount', { id: 'dyn-2' }) + + expect(ctx.tools.get('greet')).toBeUndefined() + const services = text(await call(ctx, 'cordis_inspect', { what: 'services' })) + expect(services).toContain('- greeter (provided by greeter-provider)') + expect(text(await call(ctx, 'cordis_inspect', { what: 'dynamic' }))).toContain('dyn-1: greeter-provider [active]') + }) +}) diff --git a/packages/cordis/tool-cordis/tests/helpers.ts b/packages/cordis/tool-cordis/tests/helpers.ts new file mode 100644 index 0000000000..b183a2444f --- /dev/null +++ b/packages/cordis/tool-cordis/tests/helpers.ts @@ -0,0 +1,104 @@ +import { Context } from 'cordis' +import Timer from '@cordisjs/plugin-timer' +import { CallId } from '@deepseek-ai/dsh-llm' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import type { ToolDefinition, ToolExecutionResult } from '@deepseek-ai/dsh-tools' +import * as tool from '../src/index.ts' + +/** + * Shared spec helpers: a real `SystemPrompt` + `ToolRegistry` + timer + + * tool-cordis tree (only the model is absent — the code strings below stand in + * for what it would write), plus the canonical mount-code fixtures the suites + * share. + */ + +/** Mount the plugin on a fresh context with a real ToolRegistry and the timer service. */ +export async function setup(config?: tool.Config): Promise { + const ctx = new Context() + await ctx.plugin(Timer) + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(tool, config) + return ctx +} + +let callCounter = 0 + +/** Execute a registered tool through the real registry pipeline. */ +export function call(ctx: Context, name: string, args: unknown): Promise { + return ctx.tools.execute({ callId: CallId(`call-${++callCounter}`), name, arguments: args }) +} + +/** Concatenated text blocks of one tool result. */ +export function text(result: ToolExecutionResult): string { + return result.content.filter(block => block.type === 'text').map(block => block.text).join('') +} + +/** Mount code for a listener plugin: logs on every `tools/change`. */ +export const LISTENER_CODE = ` + return { + name: 'change-logger', + apply(ctx) { + ctx.on('tools/change', () => console.log('tools changed')) + }, + } +` + +/** Mount code for a self-made tool: registers `reverse_text` via the sandbox's harness helpers. */ +export const REVERSE_TOOL_CODE = ` + return { + name: 'reverse-text', + inject: ['tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'reverse_text', + description: 'Reverse a string.', + parameters: { text: { type: 'string', required: true } }, + async execute(args) { + return [{ type: 'text', text: args.text.split('').reverse().join('') }] + }, + })) + }, + } +` + +/** Mount code providing a `greeter` service other mounts can inject. */ +export const PROVIDER_CODE = ` + return { + name: 'greeter-provider', + apply(ctx) { + ctx.provide('greeter', { greet: (name) => 'hi ' + name }) + }, + } +` + +/** Mount code consuming the `greeter` service through inject, exposing it as a tool. */ +export const CONSUMER_CODE = ` + return { + name: 'greeter-consumer', + inject: ['greeter', 'tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'greet', + description: 'Greet someone via the greeter service.', + parameters: { name: { type: 'string', required: true } }, + async execute(args) { + return [{ type: 'text', text: ctx.greeter.greet(args.name) }] + }, + })) + }, + } +` + +/** A registrable no-op tool the tests use to trigger a real `tools/change`. */ +export function dummyTool(name: string): ToolDefinition { + return { + name, + description: 'test trigger', + parameters: { type: 'object' as const, properties: {} }, + async execute(): Promise<[]> { + return [] + }, + } +} diff --git a/packages/cordis/tool-cordis/tests/inspect.spec.ts b/packages/cordis/tool-cordis/tests/inspect.spec.ts new file mode 100644 index 0000000000..c45d3b29a8 --- /dev/null +++ b/packages/cordis/tool-cordis/tests/inspect.spec.ts @@ -0,0 +1,123 @@ +import { describe, expect, it } from 'vitest' +import type { Context, Fiber } from 'cordis' +import { FiberState } from '../src/fiber-state.ts' +import { describeApi, describeEvents, describePluginTree, describeServices } from '../src/inspect.ts' +import { call, LISTENER_CODE, setup, text } from './helpers.ts' + +/** + * The `cordis_inspect` sections: rendered against the real runtime through the + * tool, plus direct renderer calls for the states a minimal harness cannot + * reach (empty service store, uid-less fibers, a fully-live catalog). + */ + +describe('cordis_inspect', () => { + it('reports all six sections by default', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_inspect', {}) + expect(result.isError).toBe(false) + const report = text(result) + for (const heading of ['services', 'plugins', 'tools', 'dynamic', 'api', 'events']) { + expect(report).toContain(`## ${heading}`) + } + // The services section sees the real providers; the tree shows the dynamic + // group under this plugin; the tools section lists the cordis tools. + expect(report).toContain('- tools (provided by ToolRegistry)') + expect(report).toMatch(/tool-cordis \[active\]/) + expect(report).toMatch(/cordis-dynamic \[active\]/) + expect(report).toContain('- cordis_mount') + expect(report).toContain('(no dynamic plugins mounted)') + }) + + it('limits the report to one section via `what`', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_inspect', { what: 'tools' }) + const report = text(result) + expect(report).toContain('## tools') + expect(report).not.toContain('## services') + expect(report).not.toContain('## plugins') + }) + + it('shows a mount in the dynamic section and as an annotated child of the group in the tree', async () => { + const ctx = await setup() + await call(ctx, 'cordis_mount', { code: LISTENER_CODE }) + const report = text(await call(ctx, 'cordis_inspect', {})) + expect(report).toContain('- dyn-1: change-logger [active]') + expect(report).toMatch(/dyn-1: change-logger \[active\]/) + }) + + it('renders the api section from the generated catalog intersected with the LIVE runtime', async () => { + const ctx = await setup() + const report = text(await call(ctx, 'cordis_inspect', { what: 'api' })) + // Live catalogued services render summary + signatures. + expect(report).toContain('- tools — ') + expect(report).toContain('register(definition: ToolDefinition)') + expect(report).toContain('- systemPrompt — ') + // Catalogued services with no live provider are listed tersely. + expect(report).toMatch(/not running \(loadable services with no live provider\): .*bash/) + // The type shapes the LIVE signatures reference follow (closure over the + // generated TYPE_API — a consumer can see field types, not just names). + expect(report).toContain('type shapes (referenced by the signatures above') + expect(report).toContain('export interface ToolExecution') + // A type only reachable through a NOT-live service (e.g. bash) is scoped out. + expect(report).not.toContain('export interface BashRunResult') + // The inherited ctx surface closes the section. + expect(report).toContain('inherited ctx API:') + expect(report).toContain('- ctx.effect — ') + }) + + it('renders the events section with mode badges, signatures, and the waterfall caution', async () => { + const ctx = await setup() + const report = text(await call(ctx, 'cordis_inspect', { what: 'events' })) + expect(report).toContain('- tools/change [emit]') + expect(report).toContain('- tools/pre-execute [waterfall]') + expect(report).toMatch(/'agent\/status'\(/) + expect(report).toContain('returning without next() vetoes the chain') + }) +}) + +describe('inspect renderers (direct)', () => { + it('describeServices reports an empty store as such, and labels a non-active provider', () => { + const empty = { reflect: { store: {} } } as unknown as Context + expect(describeServices(empty)).toEqual(['(no services provided)']) + + const pendingFiber = { state: FiberState.PENDING, name: 'half-loaded' } as unknown as Fiber + const store: Record = {} + store[Symbol('impl')] = { name: 'thing', fiber: pendingFiber } + const ctx = { reflect: { store } } as unknown as Context + expect(describeServices(ctx)).toEqual(['- thing (provided by half-loaded, pending)']) + }) + + it('describePluginTree sorts uid-less fibers last and renders sibling branches', () => { + // The parent fiber is OUTSIDE the registry set, so all three are roots. + const rootFiber = { uid: 0, name: 'root' } as unknown as Fiber + const fiber = (uid: number | null, name: string): Fiber => + ({ uid, name, state: FiberState.ACTIVE, parent: { fiber: rootFiber } }) as unknown as Fiber + const a = fiber(2, 'beta') + const b = fiber(1, 'alpha') + const c = fiber(null, 'rootless') + const d = fiber(null, 'rootless-too') + const ctx = { registry: { values: () => [{ fibers: [a, b, c, d] }] } } as unknown as Context + expect(describePluginTree(ctx, () => undefined)).toEqual([ + 'root', + '├─ alpha [active]', + '├─ beta [active]', + '├─ rootless [active]', + '└─ rootless-too [active]', + ]) + }) + + it('describeApi omits the not-running line and type shapes when nothing applies', async () => { + const ctx = await setup() + const lines = describeApi(ctx, [{ key: 'tools', summary: 'The registry.', methods: ['register(x): void'] }], [], []) + expect(lines[0]).toBe('- tools — The registry.') + expect(lines[1]).toBe(' register(x): void') + expect(lines.join('\n')).not.toContain('not running') + expect(lines.join('\n')).not.toContain('type shapes') + }) + + it('describeEvents renders an empty catalog as just the waterfall caution', () => { + expect(describeEvents([])).toEqual([ + 'waterfall listeners receive a trailing next() and MUST call it to delegate — returning without next() vetoes the chain.', + ]) + }) +}) diff --git a/packages/cordis/tool-cordis/tests/integration.spec.ts b/packages/cordis/tool-cordis/tests/integration.spec.ts new file mode 100644 index 0000000000..94331df7c0 --- /dev/null +++ b/packages/cordis/tool-cordis/tests/integration.spec.ts @@ -0,0 +1,74 @@ +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import LlmService from '@deepseek-ai/dsh-llm' +import SessionStore from '@deepseek-ai/dsh-session' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import AgentRegistry, { AgentId } from '@deepseek-ai/dsh-agent' +import AgentLoop, { ReactLoopAgent } from '@deepseek-ai/dsh-agent-loop' +import * as ToolCordis from '../src/index.ts' +import { MockAdapter, textResponse, toolCallResponse } from '../../../core/agent-loop/tests/mock-adapter.ts' +import { REVERSE_TOOL_CODE } from './helpers.ts' + +/** + * Full-loop integration: a scripted mock model mounts a plugin that registers + * a NEW tool, calls that tool on the very next step (tool schemas are + * reassembled per step — the real loop proves the self-extension contract), + * and unmounts it again. Only the model is mocked; the sandbox, the fiber + * tree, and the session log are real. + */ + +async function harness(adapter: MockAdapter): Promise { + const ctx = new Context() + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(AgentLoop, { agents: [] }) + await ctx.plugin(ToolCordis) + ctx.llm.registerAdapter(['mock'], adapter) + return ctx +} + +function waitForIdle(ctx: Context, agent: ReactLoopAgent): Promise { + return new Promise((resolve) => { + const dispose = ctx.on('agent/status', (subject, status) => { + if (subject === agent && status === 'idle') { + dispose() + resolve() + } + }) + }) +} + +describe('cordis tools through the agent loop', () => { + it('mounts a tool, calls it on the next step, and unmounts it — all as real tool/call events', async () => { + const adapter = new MockAdapter([ + toolCallResponse('call-1', 'cordis_mount', { code: REVERSE_TOOL_CODE }, 'Extending myself.'), + toolCallResponse('call-2', 'reverse_text', { text: 'harness' }), + toolCallResponse('call-3', 'cordis_unmount', { id: 'dyn-1' }), + textResponse('Done.'), + ]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('it-cordis'), { model: 'mock' }) + + agent.send([{ type: 'text', text: 'give yourself reverse_text, use it, clean up' }]) + await waitForIdle(ctx, agent) + + const log = agent.session.events + const calls = log.filter(event => event.type === 'tool/call').map(event => event.data.name) + expect(calls).toEqual(['cordis_mount', 'reverse_text', 'cordis_unmount']) + + const results = log.filter(event => event.type === 'tool/result') + expect(results.map(event => event.data.isError)).toEqual([false, false, false]) + const reversed = results[1]!.data.content + .filter(block => block.type === 'text') + .map(block => block.text) + .join('') + expect(reversed).toBe('ssenrah') + + // After the unmount the self-made tool is gone from the registry. + expect(ctx.tools.get('reverse_text')).toBeUndefined() + }) +}) diff --git a/packages/cordis/tool-cordis/tests/mount.spec.ts b/packages/cordis/tool-cordis/tests/mount.spec.ts new file mode 100644 index 0000000000..5bdde09b53 --- /dev/null +++ b/packages/cordis/tool-cordis/tests/mount.spec.ts @@ -0,0 +1,409 @@ +import { afterEach, describe, expect, it, vi } from 'vitest' +import { isJsonValue } from '@deepseek-ai/dsh-session' +import { syntaxErrorContext } from '../src/sandbox.ts' +import { call, dummyTool, LISTENER_CODE, REVERSE_TOOL_CODE, setup, text } from './helpers.ts' + +/** + * The `cordis_mount` success/failure family: real plugins land on a genuine + * cordis fiber tree, their registrations are observable through the real + * registry/event bus, and every rejection path teaches the fix. + */ + +afterEach(() => { + vi.restoreAllMocks() +}) + +describe('cordis_mount', () => { + it('mounts a listener plugin that observes real events, tagged-logging through to the host console', async () => { + const ctx = await setup() + const log = vi.spyOn(console, 'log').mockImplementation(() => {}) + + const result = await call(ctx, 'cordis_mount', { code: LISTENER_CODE }) + expect(result.isError).toBe(false) + expect(text(result)).toContain('mounted dyn-1 (plugin "change-logger", state: active)') + + // Fire a REAL tools/change by registering a tool; the mounted listener logs. + ctx.tools.register(dummyTool('trigger_a')) + expect(log).toHaveBeenCalledWith('[cordis:dyn-1]', 'tools changed') + }) + + it('mounts a bare-function plugin as , and a named function under its name', async () => { + const ctx = await setup() + const anonymous = await call(ctx, 'cordis_mount', { code: 'return (ctx) => { ctx.on(\'tools/change\', () => {}) }' }) + expect(anonymous.isError).toBe(false) + expect(text(anonymous)).toContain('plugin ""') + const named = await call(ctx, 'cordis_mount', { code: 'return function watcher(ctx) {}' }) + expect(text(named)).toContain('plugin "watcher"') + }) + + it('lets the agent give ITSELF a new tool, immediately callable through the registry', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { code: REVERSE_TOOL_CODE }) + expect(result.isError).toBe(false) + + expect(ctx.tools.schemas().map(schema => schema.name)).toContain('reverse_text') + const reversed = await call(ctx, 'reverse_text', { text: 'harness' }) + expect(reversed.isError).toBe(false) + expect(text(reversed)).toBe('ssenrah') + }) + + it('normalizes a self-made tool\'s result into the host realm, so the session log accepts it', async () => { + // The model's execute builds its content blocks INSIDE the vm, where + // Object.prototype is a different object — dsh-session's isJsonValue (the + // gate every `tool/result` append runs through) compares prototype + // IDENTITY, so a raw foreign-realm result would error the whole turn the + // first time the self-made tool runs. harness.defineTool round-trips the + // return into host-realm JSON before it reaches the registry. + const ctx = await setup() + await call(ctx, 'cordis_mount', { code: REVERSE_TOOL_CODE }) + const reversed = await call(ctx, 'reverse_text', { text: 'harness' }) + expect(isJsonValue({ content: reversed.content, isError: reversed.isError })).toBe(true) + }) + + it('rejects JSON Schema passed to harness.defineTool with the SchemaSpec teaching error', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'bad-json-schema-tool', + inject: ['tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'bad_json_schema_tool', + description: 'bad', + parameters: { + type: 'object', + properties: { text: { type: 'string' } }, + required: ['text'], + }, + async execute() { return [{ type: 'text', text: 'bad' }] }, + })) + }, + } + `, + }) + + expect(result.isError).toBe(true) + expect(text(result)).toContain('harness.defineTool parameters use the SchemaSpec DSL') + expect(ctx.tools.get('bad_json_schema_tool')).toBeUndefined() + }) + + it.each([ + ['parameters: 42', 'must be a SchemaSpec object'], + ['parameters: { text: 42 }', 'parameters.text must be a SchemaSpec property object'], + ['parameters: { text: { type: \'str\' } }', 'parameters.text must declare a valid type'], + ['parameters: { text: { type: \'string\', required: false } }', 'parameters.text.required must be true when present'], + ['parameters: { text: { type: \'string\', properties: {} } }', 'parameters.text.properties is only valid for type "object"'], + ['parameters: { text: { type: \'string\', items: { type: \'string\' } } }', 'parameters.text.items is only valid for type "array"'], + ])('rejects a malformed SchemaSpec (%s) with a teaching error', async (parameters, message) => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'bad-schema', + inject: ['tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'bad_schema_tool', + description: 'bad', + ${parameters}, + async execute() { return [] }, + })) + }, + } + `, + }) + expect(result.isError).toBe(true) + expect(text(result)).toContain(message) + }) + + it('accepts a nested object/array SchemaSpec (the DSL recursion)', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'nested-schema', + inject: ['tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'nested_schema_tool', + description: 'nested', + parameters: { + item: { type: 'object', required: true, properties: { label: { type: 'string', required: true } } }, + tags: { type: 'array', items: { type: 'string' } }, + }, + async execute(args) { return [{ type: 'text', text: args.item.label }] }, + })) + }, + } + `, + }) + expect(result.isError).toBe(false) + const echoed = await call(ctx, 'nested_schema_tool', { item: { label: 'ok' }, tags: ['a'] }) + expect(text(echoed)).toBe('ok') + }) + + it('rejects raw dynamic ctx.tools.register calls that bypass harness helpers', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'raw-register', + inject: ['tools'], + apply(ctx) { + ctx.tools.register({ + name: 'raw_dynamic_tool', + description: 'raw', + parameters: { type: 'object', properties: {} }, + async execute() { return [] }, + }) + }, + } + `, + }) + + expect(result.isError).toBe(true) + expect(text(result)).toContain('dynamic tool registration must use a tool returned by harness.defineTool') + expect(ctx.tools.get('raw_dynamic_tool')).toBeUndefined() + }) + + it('guards the registry reached through ctx.get(\'tools\') identically', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'raw-register-get', + apply(ctx) { + const sp = ctx.get('systemPrompt') + console.log('systemPrompt is', typeof sp) + ctx.get('tools').register({ name: 'raw_via_get', description: 'raw', parameters: {}, async execute() { return [] } }) + }, + } + `, + }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('dynamic tool registration must use a tool returned by harness.defineTool') + expect(ctx.tools.get('raw_via_get')).toBeUndefined() + }) + + it('passes non-register registry members through the guard with correct binding', async () => { + const ctx = await setup() + const log = vi.spyOn(console, 'log').mockImplementation(() => {}) + const result = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'schema-reader', + inject: ['tools'], + apply(ctx) { + console.log('sees', ctx.tools.schemas().length, 'tools; mount is', typeof ctx.tools.get('cordis_mount')) + }, + } + `, + }) + expect(result.isError).toBe(false) + expect(log).toHaveBeenCalledWith('[cordis:dyn-1]', 'sees', 3, 'tools; mount is', 'object') + }) + + it('keeps a plugin with unsatisfied inject mounted as pending and names what it waits for', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: 'return { name: \'waiter\', inject: [\'no-such-service\'], apply(ctx) {} }', + }) + expect(result.isError).toBe(false) + expect(text(result)).toContain('state: pending') + expect(text(result)).toContain('waiting for service(s): no-such-service') + // Unmounting a pending mount works like any other. + const unmounted = await call(ctx, 'cordis_unmount', { id: 'dyn-1' }) + expect(unmounted.isError).toBe(false) + }) + + it('rejects code that throws, leaving nothing mounted', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { code: 'throw new Error(\'boom in sandbox\')' }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('boom in sandbox') + expect(text(await call(ctx, 'cordis_inspect', { what: 'dynamic' }))).toContain('(no dynamic plugins mounted)') + }) + + it('passes non-Error and null throws through untouched (no SyntaxError misclassification)', async () => { + const ctx = await setup() + const primitive = await call(ctx, 'cordis_mount', { code: 'throw \'plain-string-throw\'' }) + expect(primitive.isError).toBe(true) + expect(text(primitive)).toContain('plain-string-throw') + const nullish = await call(ctx, 'cordis_mount', { code: 'throw null' }) + expect(nullish.isError).toBe(true) + }) + + it('rejects code that does not return a plugin', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { code: 'return 42' }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('must `return` a plugin') + }) + + it('answers a missing return with the two valid plugin forms', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { code: 'const plugin = (ctx) => {}' }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('did you forget `return`?') + }) + + it('disposes a plugin whose apply throws, and reports the error', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: 'return { name: \'broken\', apply(ctx) { throw new Error(\'apply exploded\') } }', + }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('apply exploded') + expect(text(await call(ctx, 'cordis_inspect', { what: 'dynamic' }))).toContain('(no dynamic plugins mounted)') + }) + + it('rolls back a plugin that collides with an existing tool name, keeping the original tool intact', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'usurper', + inject: ['tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'cordis_mount', + description: 'dup', + parameters: {}, + async execute() { return [] }, + })) + }, + } + `, + }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('already registered') + expect(text(result)).toContain('first cordis_unmount') + // The original cordis_mount still dispatches — the failed fiber is gone. + const retry = await call(ctx, 'cordis_mount', { code: LISTENER_CODE }) + expect(retry.isError).toBe(false) + }) + + it('isolates sandbox globals: no process/require, and globalThis writes do not leak to the host', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: ` + globalThis.__cordis_tool_leak = 'leaked' + return { name: 'probe-' + typeof process + '-' + typeof require, apply(ctx) {} } + `, + }) + expect(result.isError).toBe(false) + expect(text(result)).toContain('plugin "probe-undefined-undefined"') + expect((globalThis as Record).__cordis_tool_leak).toBeUndefined() + }) + + it('provides btoa/atob and the tagged console variants inside the sandbox', async () => { + const ctx = await setup() + const log = vi.spyOn(console, 'log').mockImplementation(() => {}) + const error = vi.spyOn(console, 'error').mockImplementation(() => {}) + const result = await call(ctx, 'cordis_mount', { + code: ` + console.warn('warned') + console.error('errored') + const round = atob(btoa('hi')) + const bytes = new TextEncoder().encode(round) + return { name: 'codec-' + new TextDecoder().decode(bytes), apply(ctx) { console.log('applied', typeof ctx.fiber) } } + `, + }) + expect(result.isError).toBe(false) + expect(text(result)).toContain('plugin "codec-hi"') + expect(log).toHaveBeenCalledWith('[cordis:dyn-1]', 'warned') + expect(log).toHaveBeenCalledWith('[cordis:dyn-1]', 'applied', 'object') + expect(error).toHaveBeenCalledWith('[cordis:dyn-1]', 'errored') + }) + + it('answers TypeScript syntax in the plain-JS sandbox with the fix', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: 'return { name: \'ts\' as const, apply(ctx) {} }', + }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('plain JavaScript, not TypeScript') + }) + + it('surfaces the offending line + caret and the bracket-balance hint on a syntax error', async () => { + const ctx = await setup() + // The canonical model mistake: closing the returned object with `});` as + // if it were a callback argument. The word "as" in a STRING elsewhere must + // not trigger the TypeScript hint — the heuristic reads the failing line. + const result = await call(ctx, 'cordis_mount', { + code: 'const note = \'treat pattern as regex\'\nreturn {\n name: \'oops\',\n apply(ctx) {}\n});', + }) + expect(result.isError).toBe(true) + const message = text(result) + expect(message).toContain('failed to parse') + expect(message).toContain('});') + expect(message).toContain('^') + expect(message).toContain('BODY of an async function') + expect(message).not.toContain('TypeScript') + }) + + it('syntaxErrorContext falls back to String(error) when the stack has no vm prelude', () => { + const doctored = new SyntaxError('boom') + delete (doctored as { stack?: string }).stack + expect(syntaxErrorContext(doctored)).toBe('SyntaxError: boom') + const plain = new SyntaxError('bang') + plain.stack = 'not-a-vm-stack' + expect(syntaxErrorContext(plain)).toBe('SyntaxError: bang') + }) + + it('handles a runtime-thrown SyntaxError (no source-line prelude) with the generic hint', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { code: 'throw new SyntaxError(\'user-crafted\')' }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('failed to parse') + expect(text(result)).toContain('user-crafted') + }) + + it('honors the configured vmTimeoutMs for the synchronous portion', async () => { + const ctx = await setup({ vmTimeoutMs: 50 }) + const result = await call(ctx, 'cordis_mount', { code: 'while (true) {}' }) + expect(result.isError).toBe(true) + expect(text(result)).toMatch(/timed? ?out/i) + expect(text(await call(ctx, 'cordis_inspect', { what: 'dynamic' }))).toContain('(no dynamic plugins mounted)') + }) + + it('makes instanceof inside the sandbox see BOTH realms (patched vm constructors, host untouched)', async () => { + // The args a tool's execute receives are HOST-realm objects; without the + // dual-realm Symbol.hasInstance prelude, `args.items instanceof Array` in + // sandbox code is silently false. The patch lives on the vm realm's own + // constructors only — the host realm's must stay pristine. + const ctx = await setup() + await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'probe-instanceof', + inject: ['tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'probe_instanceof', + description: 'report instanceof checks across realms', + parameters: { items: { type: 'array', required: true, items: { type: 'string' } } }, + async execute(args) { + const checks = { + hostArray: args.items instanceof Array, + hostObject: args instanceof Object, + vmArray: [] instanceof Array, + vmObject: ({}) instanceof Object, + } + return [{ type: 'text', text: JSON.stringify(checks) }] + }, + })) + }, + } + `, + }) + const probed = await call(ctx, 'probe_instanceof', { items: ['a'] }) + expect(probed.isError).toBe(false) + expect(JSON.parse(text(probed))).toEqual({ hostArray: true, hostObject: true, vmArray: true, vmObject: true }) + // The host realm's constructors keep their default instanceof: no own + // Symbol.hasInstance was added to them. + expect(Object.getOwnPropertySymbols(Object)).not.toContain(Symbol.hasInstance) + expect(Object.getOwnPropertySymbols(Array)).not.toContain(Symbol.hasInstance) + }) +}) diff --git a/packages/cordis/tool-cordis/tests/present.spec.ts b/packages/cordis/tool-cordis/tests/present.spec.ts new file mode 100644 index 0000000000..d8f380439f --- /dev/null +++ b/packages/cordis/tool-cordis/tests/present.spec.ts @@ -0,0 +1,41 @@ +import { describe, expect, it } from 'vitest' +import { presentInspectCall, presentMountCall, presentUnmountCall } from '../src/present.ts' +import { setup } from './helpers.ts' + +/** + * Render-intent presenters: pure functions of the call args (no I/O, no + * session state — they run on replay too), wired onto the registered tools. + */ + +describe('presenters', () => { + it('cordis_inspect renders a generic read card titled with the section', () => { + expect(presentInspectCall({})).toEqual({ card: 'generic', kind: 'read', title: 'Inspect cordis runtime' }) + expect(presentInspectCall({ what: 'api' })).toEqual({ card: 'generic', kind: 'read', title: 'Inspect cordis runtime: api' }) + }) + + it('cordis_mount renders a generic execute card carrying the code as raw input', () => { + expect(presentMountCall({ code: 'return (ctx) => {}' })).toEqual({ + card: 'generic', + kind: 'execute', + title: 'Mount plugin into live cordis runtime', + rawInput: { code: 'return (ctx) => {}' }, + }) + }) + + it('cordis_unmount renders a generic delete card titled with the id', () => { + expect(presentUnmountCall({ id: 'dyn-1' })).toEqual({ card: 'generic', kind: 'delete', title: 'Unmount dyn-1' }) + }) + + it('is wired onto the registered definitions through the defineTool soft-validation path', async () => { + const ctx = await setup() + expect(ctx.tools.get('cordis_inspect')!.presentCall!({ what: 'tools' })).toEqual({ + card: 'generic', + kind: 'read', + title: 'Inspect cordis runtime: tools', + }) + expect(ctx.tools.get('cordis_mount')!.presentCall!({ code: 'return 1' })).toMatchObject({ kind: 'execute' }) + expect(ctx.tools.get('cordis_unmount')!.presentCall!({ id: 'dyn-2' })).toMatchObject({ title: 'Unmount dyn-2' }) + // Soft validation: presenter args that fail the schema render as no card, never a throw. + expect(ctx.tools.get('cordis_unmount')!.presentCall!({ id: 42 })).toBeUndefined() + }) +}) diff --git a/packages/cordis/tool-cordis/tests/tool-cordis.spec.ts b/packages/cordis/tool-cordis/tests/tool-cordis.spec.ts new file mode 100644 index 0000000000..8953b5da94 --- /dev/null +++ b/packages/cordis/tool-cordis/tests/tool-cordis.spec.ts @@ -0,0 +1,49 @@ +import { describe, expect, it } from 'vitest' +import Loader from '@cordisjs/plugin-loader' +import * as tool from '../src/index.ts' +import { setup } from './helpers.ts' + +/** + * Export-shape and registration surface: the namespace-plugin contract the + * real Loader path depends on, the registered tool set, and the Config + * validator's defaults and rejections. + */ + +describe('export shape', () => { + it('has no default export, and survives the real Loader unwrapExports', () => { + // A stray `export default` would make `unwrapExports` (`exports.default ?? + // exports`) collapse the module to the bare function and DROP `inject`, + // crashing at real load (docs/postmortem/0001). Assert directly AND through + // the real unwrap so adding `export default apply` fails here. + expect('default' in tool).toBe(false) + const loader = Object.create(Loader.prototype) as Loader + const unwrapped = loader.unwrapExports(tool) as Record + expect(unwrapped).toBe(tool) + expect(unwrapped.name).toBe('tool-cordis') + expect(unwrapped.inject).toEqual(['tools']) + expect(typeof unwrapped.apply).toBe('function') + expect(typeof unwrapped.Config).toBe('function') + }) +}) + +describe('tool registration', () => { + it('registers the three cordis tools with the documented schemas', async () => { + const ctx = await setup() + const names = ctx.tools.schemas().map(schema => schema.name) + expect(names).toEqual(expect.arrayContaining(['cordis_inspect', 'cordis_mount', 'cordis_unmount'])) + const inspect = ctx.tools.schemas().find(schema => schema.name === 'cordis_inspect')! + const props = (inspect.parameters as { properties: Record }).properties + expect(props.what?.enum).toEqual(['services', 'plugins', 'tools', 'dynamic', 'api', 'events']) + }) +}) + +describe('Config', () => { + it('defaults vmTimeoutMs to 5000', () => { + expect(new tool.Config()).toEqual({ vmTimeoutMs: 5000 }) + }) + + it('rejects a non-positive vmTimeoutMs at validation time (misconfiguration fails loud)', () => { + expect(() => new tool.Config({ vmTimeoutMs: 0 })).toThrow() + expect(() => new tool.Config({ vmTimeoutMs: -1 })).toThrow() + }) +}) diff --git a/packages/cordis/tool-cordis/tests/unmount-hmr.spec.ts b/packages/cordis/tool-cordis/tests/unmount-hmr.spec.ts new file mode 100644 index 0000000000..718a213968 --- /dev/null +++ b/packages/cordis/tool-cordis/tests/unmount-hmr.spec.ts @@ -0,0 +1,82 @@ +import { afterEach, describe, expect, it, vi } from 'vitest' +import { Context } from 'cordis' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import * as tool from '../src/index.ts' +import { call, dummyTool, LISTENER_CODE, REVERSE_TOOL_CODE, setup, text } from './helpers.ts' + +/** + * Disposal semantics: `cordis_unmount` reaches quiescence before returning, + * and disposing the tool-cordis fiber itself (the HMR path) cascades over the + * whole dynamic subtree through the ordinary parent→child fiber lifecycle. + */ + +afterEach(() => { + vi.restoreAllMocks() +}) + +describe('cordis_unmount', () => { + it('disposes the mount and its registrations have stopped by the time it returns (quiescence)', async () => { + const ctx = await setup() + const log = vi.spyOn(console, 'log').mockImplementation(() => {}) + await call(ctx, 'cordis_mount', { code: LISTENER_CODE }) + + ctx.tools.register(dummyTool('trigger_before')) + expect(log).toHaveBeenCalledTimes(1) + + const result = await call(ctx, 'cordis_unmount', { id: 'dyn-1' }) + expect(result.isError).toBe(false) + expect(text(result)).toContain('unmounted dyn-1') + + // Immediately after the awaited unmount, the listener must be gone — no + // grace period, no eventual consistency. + ctx.tools.register(dummyTool('trigger_after')) + expect(log).toHaveBeenCalledTimes(1) + expect(text(await call(ctx, 'cordis_inspect', { what: 'dynamic' }))).toContain('(no dynamic plugins mounted)') + }) + + it('unregisters a self-made tool on unmount', async () => { + const ctx = await setup() + await call(ctx, 'cordis_mount', { code: REVERSE_TOOL_CODE }) + expect(ctx.tools.get('reverse_text')).toBeDefined() + + await call(ctx, 'cordis_unmount', { id: 'dyn-1' }) + expect(ctx.tools.get('reverse_text')).toBeUndefined() + }) + + it('rejects an unknown id, and a second unmount of the same id', async () => { + const ctx = await setup() + const unknown = await call(ctx, 'cordis_unmount', { id: 'dyn-99' }) + expect(unknown.isError).toBe(true) + expect(text(unknown)).toContain('no dynamic plugin with id "dyn-99"') + + await call(ctx, 'cordis_mount', { code: LISTENER_CODE }) + await call(ctx, 'cordis_unmount', { id: 'dyn-1' }) + const again = await call(ctx, 'cordis_unmount', { id: 'dyn-1' }) + expect(again.isError).toBe(true) + }) +}) + +describe('HMR safety', () => { + it('disposing the tool-cordis fiber cascades over the dynamic subtree and its registrations', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + const fiber = await ctx.plugin(tool) + + const log = vi.spyOn(console, 'log').mockImplementation(() => {}) + await call(ctx, 'cordis_mount', { code: LISTENER_CODE }) + await call(ctx, 'cordis_mount', { code: REVERSE_TOOL_CODE }) + expect(ctx.tools.get('reverse_text')).toBeDefined() + + await fiber.dispose() + + // The whole subtree is gone: the self-made tool, the cordis tools, and the + // mounted listener (no log on a fresh tools/change). + expect(ctx.tools.get('reverse_text')).toBeUndefined() + expect(ctx.tools.get('cordis_mount')).toBeUndefined() + const calls = log.mock.calls.length + ctx.tools.register(dummyTool('trigger_post_dispose')) + expect(log).toHaveBeenCalledTimes(calls) + }) +}) diff --git a/packages/cordis/tool-cordis/tsconfig.json b/packages/cordis/tool-cordis/tsconfig.json new file mode 100644 index 0000000000..c4d4b6f656 --- /dev/null +++ b/packages/cordis/tool-cordis/tsconfig.json @@ -0,0 +1,27 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../../vendor/timer" + }, + { + "path": "../../../vendor/schemastery" + }, + { + "path": "../../core/tools" + } + ] +} diff --git a/packages/core/tools/tests/gen-tool-catalog.spec.ts b/packages/core/tools/tests/gen-tool-catalog.spec.ts index cacc2eef66..d4a6b97243 100644 --- a/packages/core/tools/tests/gen-tool-catalog.spec.ts +++ b/packages/core/tools/tests/gen-tool-catalog.spec.ts @@ -35,7 +35,7 @@ describe('gen-tool-catalog collectToolCatalog', () => { it('boots every shipped tool package and harvests its model-facing schemas', async () => { const catalog = await collectToolCatalog() const names = catalog.flatMap(entry => entry.schemas.map(s => s.name)).sort() - expect(names).toEqual(['bash', 'bash_kill', 'bash_output', 'edit', 'read', 'subagent', 'todo_write', 'web_fetch', 'web_search', 'write']) + expect(names).toEqual(['bash', 'bash_kill', 'bash_output', 'cordis_inspect', 'cordis_mount', 'cordis_unmount', 'edit', 'read', 'subagent', 'todo_write', 'web_fetch', 'web_search', 'write']) // Every tool carries a JSON-Schema `parameters` object (what the model sees). for (const entry of catalog) { for (const schema of entry.schemas) { diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index b538e82908..ab1b0f73b3 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -191,6 +191,40 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/cordis/tool-cordis: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@cordisjs/plugin-loader': + specifier: ^1.0.0-rc.4 + version: 1.0.0-rc.4(cordis@4.0.0-rc.6) + '@cordisjs/plugin-timer': + specifier: workspace:^ + version: link:../../../vendor/timer + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../../core/agent + '@deepseek-ai/dsh-agent-loop': + specifier: workspace:^ + version: link:../../core/agent-loop + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + '@deepseek-ai/dsh-session': + specifier: workspace:^ + version: link:../../core/session + '@deepseek-ai/dsh-system-prompt': + specifier: workspace:^ + version: link:../../core/system-prompt + '@deepseek-ai/dsh-tools': + specifier: workspace:^ + version: link:../../core/tools + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/core/agent: devDependencies: '@deepseek-ai/dsh-brand': diff --git a/scripts/gen-tool-catalog.ts b/scripts/gen-tool-catalog.ts index 24739e1388..714b15afdc 100644 --- a/scripts/gen-tool-catalog.ts +++ b/scripts/gen-tool-catalog.ts @@ -47,6 +47,7 @@ import * as WebFetchLocal from '@deepseek-ai/dsh-web-fetch-local' import SubagentService from '@deepseek-ai/dsh-subagent' import * as SubagentMock from '@deepseek-ai/dsh-subagent-mock' import * as ToolBash from '@deepseek-ai/dsh-tool-bash' +import * as ToolCordis from '@deepseek-ai/dsh-tool-cordis' import * as ToolFs from '@deepseek-ai/dsh-tool-fs' import * as ToolTodo from '@deepseek-ai/dsh-tool-todo' import * as ToolSubagent from '@deepseek-ai/dsh-tool-subagent' @@ -113,6 +114,18 @@ const TOOL_PACKAGES: ToolPackage[] = [ note: 'The bash/bash_output/bash_kill tools are model-facing consumers of the bash executor seam.', }, + { + pkg: '@deepseek-ai/dsh-tool-cordis', + dir: 'tool-cordis', + source: 'packages/cordis/tool-cordis/src/index.ts', + requires: ['ctx.tools'], + writes: ['tool/call', 'tool/result', 'live plugin-tree mutations (mount/unmount)'], + async mount(ctx) { + await ctx.plugin(ToolCordis) + }, + note: + 'Ships in examples/cordis-agent only (a deliberate opt-in — mounted code gets the real ctx, see docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md). Plugins the model mounts may register ADDITIONAL model-visible tools at runtime; the request-header ToolsDelta logs those tool-set changes.', + }, { pkg: '@deepseek-ai/dsh-tool-fs', dir: 'tool-fs', diff --git a/tsconfig.base.json b/tsconfig.base.json index e587d44a3d..b4a4e116d8 100644 --- a/tsconfig.base.json +++ b/tsconfig.base.json @@ -51,6 +51,7 @@ "./packages/web/*/src", "./packages/timeout/*/src", "./packages/todo/*/src", + "./packages/cordis/*/src", "./packages/hooks/*/src", "./packages/session-persistence/*/src", "./packages/ui/*/src", diff --git a/tsconfig.build.json b/tsconfig.build.json index 64fa70e9f9..fafe46d3c9 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -58,6 +58,7 @@ { "path": "./packages/subagent/subagent-acp" }, { "path": "./packages/todo/tool-todo" }, { "path": "./packages/guard/repeat-tool-guard" }, + { "path": "./packages/cordis/tool-cordis" }, { "path": "./packages/hooks/hook-protocol" }, { "path": "./packages/hooks/hooks-claude" }, { "path": "./packages/hooks/hooks-codex" } diff --git a/tsconfig.json b/tsconfig.json index 8feeea4fce..9d630d04c4 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -69,6 +69,7 @@ { "path": "./packages/subagent/subagent-acp" }, { "path": "./packages/todo/tool-todo" }, { "path": "./packages/guard/repeat-tool-guard" }, + { "path": "./packages/cordis/tool-cordis" }, { "path": "./packages/hooks/hook-protocol" }, { "path": "./packages/hooks/hooks-claude" }, { "path": "./packages/hooks/hooks-codex" } From 5edc9c573a6fd26d773cfcfcb933f0d138aa26c7 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Wed, 8 Jul 2026 11:47:15 +0800 Subject: [PATCH 119/232] =?UTF-8?q?examples:=20cordis-agent=20=E2=80=94=20?= =?UTF-8?q?the=20self-referential=20demo?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The coding spine (DeepSeek V4 + local bash on dsh-stdio-agent) plus @deepseek-ai/dsh-tool-cordis loaded by package name, run via demo:cordis. Ships the keyless Loader smoke (the export-shape / package-name-resolution guard) and the with-key smoke: a real model mounts a listener whose tagged console line actually fires, builds and calls its own reverse_text tool, and composes two mounts via provide/inject — all world-verified against the registry and session events. --- examples/cordis-agent/README.md | 33 ++++ examples/cordis-agent/cordis.yml | 64 +++++++ examples/cordis-agent/package.json | 7 + .../cordis-agent/tests/cordis-tools.e2e.ts | 156 ++++++++++++++++++ examples/cordis-agent/tests/harness.ts | 46 ++++++ .../cordis-agent/tests/keyless-smoke.e2e.ts | 94 +++++++++++ package.json | 1 + 7 files changed, 401 insertions(+) create mode 100644 examples/cordis-agent/README.md create mode 100644 examples/cordis-agent/cordis.yml create mode 100644 examples/cordis-agent/package.json create mode 100644 examples/cordis-agent/tests/cordis-tools.e2e.ts create mode 100644 examples/cordis-agent/tests/harness.ts create mode 100644 examples/cordis-agent/tests/keyless-smoke.e2e.ts diff --git a/examples/cordis-agent/README.md b/examples/cordis-agent/README.md new file mode 100644 index 0000000000..ba9365498b --- /dev/null +++ b/examples/cordis-agent/README.md @@ -0,0 +1,33 @@ +# cordis-agent + +The self-referential harness demo: the coding-agent spine (DeepSeek V4 + local bash on the stdio chat app) plus [`@deepseek-ai/dsh-tool-cordis`](../../packages/cordis/tool-cordis/README.md), which hands the model three tools over the **live cordis runtime it is running inside** — inspect it, mount new plugins into it, and dispose them again. The design (sandbox semantics, mount lifecycle, cross-mount composition, caveats) lives in [the toolset RFC](../../docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md). + +## Run it + +```sh +# repo root .env (gitignored) or exported env: +# DEEPSEEK_API_KEY=sk-… +# DEEPSEEK_BASE_URL=https://… # optional; defaults to the public API +pnpm run demo:cordis +``` + +The intended demo is staged — verify the listener link first, then let the agent extend itself: + +``` +> Mount a plugin that listens to the 'agent/status' event and logs every status change, then run `echo hi` with bash. + [tool call] cordis_mount({"code": "return { name: 'status-logger', apply(ctx) { ctx.on('agent/status', (agent, status) => console.log('status →', status)) } }"}) + [tool result] mounted dyn-1 (plugin "status-logger", state: active) + [tool call] bash({"command": "echo hi"}) +[cordis:dyn-1] status → … ← the mounted listener firing, live +> Now give yourself a reverse_text tool and use it on "harness". + [tool call] cordis_mount({"code": "return { name: 'reverse-text', inject: ['tools'], apply(ctx) { ctx.tools.register(harness.defineTool({ name: 'reverse_text', … })) } }"}) + [tool call] reverse_text({"text": "harness"}) ← a tool the agent built for itself, one step earlier +> Unmount both. + [tool call] cordis_unmount({"id": "dyn-1"}) +``` + +Ask for `cordis_inspect` with `what: "api"` or `what: "events"` to see the generated service/event reference the agent writes plugin code against, and try two cooperating mounts (`ctx.provide` in one, `inject` in the other) to watch cordis park and revive the consumer. + +## End-to-end tests + +`tests/keyless-smoke.e2e.ts` boots the real `cordis.yml` through the Loader with a dummy key and asserts the banner + clean EOF exit (the export-shape / real-load-path guard, now across the package-name resolution). `tests/cordis-tools.e2e.ts` is the with-key smoke: a real model mounts a status listener (asserting the tagged console line actually fires — the world, not the agent's claim), builds itself a `reverse_text` tool and uses it, and composes two mounts via provide/inject. The tool logic itself is unit-tested in [`packages/cordis/tool-cordis`](../../packages/cordis/tool-cordis) under the per-file 100% coverage gate. diff --git a/examples/cordis-agent/cordis.yml b/examples/cordis-agent/cordis.yml new file mode 100644 index 0000000000..b5e08c8325 --- /dev/null +++ b/examples/cordis-agent/cordis.yml @@ -0,0 +1,64 @@ +# The cordis-agent plugin tree: the SELF-REFERENTIAL harness demo. Same spine +# as coding-agent (DeepSeek V4 + local bash on @deepseek-ai/dsh-stdio-agent), +# plus @deepseek-ai/dsh-tool-cordis, which gives the model three tools over the +# live cordis runtime it is running inside: cordis_inspect (services / plugin +# tree / tools / dynamic mounts / api / events), cordis_mount (evaluate +# model-written code in a vm sandbox and mount the returned plugin under the +# `cordis-dynamic` group), and cordis_unmount (dispose one mount by id). +# Requires DEEPSEEK_API_KEY (and optionally DEEPSEEK_BASE_URL) — the +# dsh-stdio-agent bin loads the gitignored repo-root .env first. +# +# Trust stance (docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md): +# the mounted code gets the REAL ctx — the +# vm sandbox only prevents accidental global pollution. Load the toolset as +# deliberately as you would grant a bash tool. + +# Hot-module reload for the dev/demo loop (needs `node --expose-internals`). +- id: hmr + name: '@cordisjs/plugin-hmr' + config: + root: ['.'] + +# The DeepSeek adapter. +- id: llm-deepseek + name: '@deepseek-ai/dsh-llm-deepseek' + config: + apiKey: !!js process.env.DEEPSEEK_API_KEY + baseURL: !!js process.env.DEEPSEEK_BASE_URL + models: + - deepseek-v4-pro + - deepseek-v4-flash + +# Local bash executor for agent-core's tool-bash schema — gives the agent an +# ordinary tool whose calls make the mounted listeners observably fire. +- id: bash + name: '@deepseek-ai/dsh-bash-local' + config: + timeoutMs: 60000 + +# The stdio chat app: the whole spine + front-door cluster, configured for the +# self-referential demo driving a pre-created `main` agent. +- id: stdio-agent + name: '@deepseek-ai/dsh-stdio-agent' + config: + model: deepseek-v4-flash + resumeSessionId: !!js process.env.RESUME_SESSION_ID + persistenceRoot: './.sessions' + welcome: 'cordis-agent ready. Ask it to inspect its runtime, mount a listener, or invent a tool for itself.' + persona: | + You are cordis-agent, a self-referential harness demo powered by the + {{model}} model. + + You run INSIDE a cordis plugin runtime, and your cordis_* tools operate + on that live runtime: cordis_inspect to look around (its `api` and + `events` sections document the service methods, type shapes, and events + your plugin code can use), cordis_mount to add a plugin (an event + listener, a brand-new tool for yourself, or a service other mounts + inject), cordis_unmount to clean one up. Prefer small single-purpose + plugins, prefer plain notification events over waterfall events unless + you intend to intercept, and unmount what you no longer need. Report + results briefly. + +# The self-referential cordis toolset (loaded after the app so ctx.tools exists). +- id: tool-cordis + name: '@deepseek-ai/dsh-tool-cordis' diff --git a/examples/cordis-agent/package.json b/examples/cordis-agent/package.json new file mode 100644 index 0000000000..8d5a693555 --- /dev/null +++ b/examples/cordis-agent/package.json @@ -0,0 +1,7 @@ +{ + "name": "cordis-agent-example", + "private": true, + "version": "0.0.1", + "type": "module", + "description": "Runnable demo: the self-referential harness — an agent that inspects and modifies its own cordis runtime" +} diff --git a/examples/cordis-agent/tests/cordis-tools.e2e.ts b/examples/cordis-agent/tests/cordis-tools.e2e.ts new file mode 100644 index 0000000000..388fcb0058 --- /dev/null +++ b/examples/cordis-agent/tests/cordis-tools.e2e.ts @@ -0,0 +1,156 @@ +import { afterEach, describe, expect, it, vi } from 'vitest' +import type { Context } from 'cordis' +import { CallId } from '@deepseek-ai/dsh-llm' +import { AgentId } from '@deepseek-ai/dsh-agent' +import { cordisHarness, waitForIdle } from './harness.ts' + +/** + * With-key smoke for the self-referential cordis tools: a REAL model drives + * cordis_mount/cordis_unmount against the live context the test observes. + * World-verified, not self-reported: the mounted listener must actually WRITE + * its tagged console line, the self-made tool must actually EXIST in the + * registry and appear as a real `tool/call`, the cross-mount service must + * actually LAND in the reflect store. Key-gated (see vitest.e2e.config.ts). + */ + +let ctx: Context | undefined + +afterEach(async () => { + vi.restoreAllMocks() + // Always dispose the harness, even on failure/retry/timeout: agent-loop + // teardown stops the loop, and disposing the tree unwinds every dynamic + // mount the model left behind. + await ctx?.fiber.dispose() + ctx = undefined +}) + +/** The tagged write-through lines (`[cordis:dyn-n] …`) captured by a console spy. */ +function taggedCalls(log: { mock: { calls: unknown[][] } }): unknown[][] { + return log.mock.calls.filter(call => typeof call[0] === 'string' && /^\[cordis:dyn-\d+\]$/.test(call[0])) +} + +/** Model-facing text of one tool result, concatenated. */ +function resultText(result: { content: { type: string; text?: string }[] }): string { + return result.content.filter(block => block.type === 'text').map(block => block.text).join('') +} + +describe.skipIf(!process.env.DEEPSEEK_API_KEY)('cordis tools: a real model modifies its own runtime', () => { + it('mounts a status listener whose tagged output actually fires, then unmounts it', async () => { + ctx = await cordisHarness() + const log = vi.spyOn(console, 'log').mockImplementation(() => {}) + const agent = ctx.agentLoop.create(AgentId('cordis-e2e-listener'), { model: 'deepseek-v4-flash' }) + + agent.send([{ + type: 'text', + text: 'Use cordis_mount to mount a plugin that listens to the \'agent/status\' ' + + 'cordis event and logs every change with console.log. Reply "mounted" once done.', + }]) + await waitForIdle(ctx, agent) + + // The WORLD check: the turn's own running→idle transition must have driven + // the mounted listener through the tagged sandbox console. + expect(taggedCalls(log).length).toBeGreaterThan(0) + const mid = await ctx.tools.execute({ + callId: CallId('verify-mounted'), name: 'cordis_inspect', arguments: { what: 'dynamic' }, + }) + expect(resultText(mid)).toContain('dyn-') + + agent.send([{ type: 'text', text: 'Now unmount the plugin you just mounted.' }]) + await waitForIdle(ctx, agent) + + const after = await ctx.tools.execute({ + callId: CallId('verify-unmounted'), name: 'cordis_inspect', arguments: { what: 'dynamic' }, + }) + expect(resultText(after)).toContain('(no dynamic plugins mounted)') + }, 120_000) + + it('builds itself a reverse_text tool and actually calls it', async () => { + ctx = await cordisHarness() + const agent = ctx.agentLoop.create(AgentId('cordis-e2e-selftool'), { model: 'deepseek-v4-flash' }) + + agent.send([{ + type: 'text', + text: 'Give yourself a new tool: use cordis_mount to mount a plugin with ' + + 'inject ["tools"] that calls harness.registerTool(ctx, harness.defineTool({...})) ' + + 'to register a tool named reverse_text with one required string parameter ' + + '"text", returning the text reversed. Then CALL reverse_text with the ' + + 'exact text "harness" and report its exact output.', + }]) + await waitForIdle(ctx, agent) + + // World checks: the tool exists in the registry, was invoked as a real + // tool call, and its RESULT (the self-made execute actually running) is the + // reversed string. The model's prose is not asserted — the tool result is + // the world; the summary sentence is just the self-report. + expect(ctx.tools.get('reverse_text')).toBeDefined() + const events = [...agent.session.events] + const calls = events.filter(event => event.type === 'tool/call') + expect(calls.some(event => event.data.name === 'cordis_mount')).toBe(true) + const reverseCalls = calls.filter(event => event.data.name === 'reverse_text') + expect(reverseCalls.length).toBeGreaterThan(0) + const reverseResults = events + .filter(event => event.type === 'tool/result') + .filter(event => reverseCalls.some(call => call.data.callId === event.data.callId)) + .flatMap(event => event.data.content.filter(block => block.type === 'text').map(block => block.text)) + // On failure, surface what the model actually mounted and what the tool + // returned — an e2e failing at a distance is undebuggable without it. + const mountCode = calls + .filter(event => event.data.name === 'cordis_mount') + .map(event => event.data.arguments) + .join('\n---\n') + const trace = events.map((event) => { + switch (event.type) { + case 'tool/call': return `tool/call:${event.data.name}` + case 'tool/result': return `tool/result:${event.data.isError ? 'ERR:' + JSON.stringify(event.data.content).slice(0, 200) : 'ok'}` + case 'turn/end': return `turn/end:${JSON.stringify(event.data.reason)}` + default: return event.type + } + }).join('\n') + expect( + reverseResults.some(text => text.includes('ssenrah')), + `no reversed output in reverse_text results.\nresults: ${JSON.stringify(reverseResults)}\nmount code: ${mountCode}\ntrace:\n${trace}`, + ).toBe(true) + }, 120_000) + + it('composes two mounts through provide/inject, and unmounting the provider parks the consumer', async () => { + ctx = await cordisHarness() + const agent = ctx.agentLoop.create(AgentId('cordis-e2e-compose'), { model: 'deepseek-v4-flash' }) + + agent.send([{ + type: 'text', + text: 'Mount TWO separate plugins with cordis_mount. First a provider: apply calls ' + + 'ctx.provide(\'shouter\', { shout: (s) => s.toUpperCase() }). Second a consumer with ' + + 'inject ["shouter", "tools"] that registers (via harness.registerTool + harness.defineTool) ' + + 'a tool named shout_text with one required string parameter "text" whose execute returns ' + + 'ctx.shouter.shout(args.text) as a text content block. Then CALL shout_text with "quiet" ' + + 'and report the exact output.', + }]) + await waitForIdle(ctx, agent) + + // World checks: the service is really in the store, the tool really ran. + expect(ctx.get('shouter')).toBeDefined() + expect(ctx.tools.get('shout_text')).toBeDefined() + const events = [...agent.session.events] + const shoutCalls = events + .filter(event => event.type === 'tool/call') + .filter(event => event.data.name === 'shout_text') + expect(shoutCalls.length).toBeGreaterThan(0) + const shoutResults = events + .filter(event => event.type === 'tool/result') + .filter(event => shoutCalls.some(call => call.data.callId === event.data.callId)) + .flatMap(event => event.data.content.filter(block => block.type === 'text').map(block => block.text)) + expect(shoutResults.some(text => text.includes('QUIET'))).toBe(true) + + agent.send([{ type: 'text', text: 'Now unmount ONLY the provider plugin (the one that provided shouter).' }]) + await waitForIdle(ctx, agent) + + // The consumer must have been parked by cordis itself: service gone, + // dependent tool unregistered, dynamic table naming the missing service. + expect(ctx.get('shouter')).toBeUndefined() + expect(ctx.tools.get('shout_text')).toBeUndefined() + const after = await ctx.tools.execute({ + callId: CallId('verify-parked'), name: 'cordis_inspect', arguments: { what: 'dynamic' }, + }) + expect(resultText(after)).toContain('waiting for: shouter') + }, 120_000) +}) diff --git a/examples/cordis-agent/tests/harness.ts b/examples/cordis-agent/tests/harness.ts new file mode 100644 index 0000000000..78e5b0bb93 --- /dev/null +++ b/examples/cordis-agent/tests/harness.ts @@ -0,0 +1,46 @@ +import { Context } from 'cordis' +import LlmService from '@deepseek-ai/dsh-llm' +import SessionStore from '@deepseek-ai/dsh-session' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import AgentRegistry from '@deepseek-ai/dsh-agent' +import AgentLoop, { ReactLoopAgent } from '@deepseek-ai/dsh-agent-loop' +import * as LlmDeepSeek from '@deepseek-ai/dsh-llm-deepseek' +import * as ToolCordis from '@deepseek-ai/dsh-tool-cordis' + +/** + * Shared harness for the cordis-agent e2e suite: the agent spine with the real + * DeepSeek adapter and the real `@deepseek-ai/dsh-tool-cordis` plugin, so a + * live model can mount plugins into the very context the test observes. Lives + * outside the *.e2e.ts pattern so importing it never re-registers another + * file's tests. + */ + +const PERSONA = 'You are cordis-agent, a self-referential harness demo. ' + + 'Your cordis_* tools operate on the live cordis runtime you run inside: ' + + 'cordis_inspect to look around, cordis_mount to add a plugin, cordis_unmount ' + + 'to clean one up. Follow the tool descriptions exactly and report results briefly.' + +export async function cordisHarness(): Promise { + const ctx = new Context() + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt, { persona: PERSONA }) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(AgentLoop, { agents: [] }) + await ctx.plugin(LlmDeepSeek, { models: ['deepseek-v4-flash'] }) + await ctx.plugin(ToolCordis) + return ctx +} + +export function waitForIdle(ctx: Context, agent: ReactLoopAgent): Promise { + return new Promise((resolve) => { + const dispose = ctx.on('agent/status', (subject, status) => { + if (subject === agent && status === 'idle') { + dispose() + resolve() + } + }) + }) +} diff --git a/examples/cordis-agent/tests/keyless-smoke.e2e.ts b/examples/cordis-agent/tests/keyless-smoke.e2e.ts new file mode 100644 index 0000000000..b37ea8d83e --- /dev/null +++ b/examples/cordis-agent/tests/keyless-smoke.e2e.ts @@ -0,0 +1,94 @@ +import { spawn, type ChildProcessWithoutNullStreams } from 'node:child_process' +import { mkdtemp, rm } from 'node:fs/promises' +import { tmpdir } from 'node:os' +import { join } from 'node:path' +import { fileURLToPath } from 'node:url' +import { afterEach, describe, expect, it } from 'vitest' + +/** + * Keyless Loader-path smoke for examples/cordis-agent: boot the REAL example + * through the `@deepseek-ai/dsh-stdio-agent` bin against its `cordis.yml` — + * the cordis Loader, `unwrapExports`, the full plugin tree INCLUDING the + * `@deepseek-ai/dsh-tool-cordis` package resolved by name (whose `inject` + * would crash a collapsed export shape at load, see docs/postmortem/0001) — + * then close stdin with no prompt and assert the ready banner + a clean exit. + * + * No prompt is ever sent, so the model is NEVER called — that is why it runs + * without a real key: `llm-deepseek`'s apply() only requires a key to be + * PRESENT, and the absence of any prompt guarantees no network call. The + * with-key product proof lives in cordis-tools.e2e.ts. + */ + +// The dsh-stdio-agent bin (the demo:cordis entry) and this example's cordis.yml. +// The bin resolves its config-path arg from CWD; the test spawns from a temp +// cwd, so we pass the example config's ABSOLUTE path. +const binScript = fileURLToPath(new URL('../../../packages/ui/stdio-agent/src/bin.ts', import.meta.url)) +const configPath = fileURLToPath(new URL('../cordis.yml', import.meta.url)) +const tsxLoader = fileURLToPath(import.meta.resolve('tsx')) +// Dev/test run UNBUILT: resolve `@deepseek-ai/dsh-*` through the root tsconfig +// `paths` map; tsx searches UP from cwd, and we spawn from a temp dir outside +// the repo, so point it at the repo tsconfig (root is three levels up). +const repoTsconfig = fileURLToPath(new URL('../../../tsconfig.json', import.meta.url)) + +let child: ChildProcessWithoutNullStreams | undefined +let workdir: string | undefined + +afterEach(async () => { + if (child !== undefined && child.exitCode === null) child.kill('SIGKILL') + child = undefined + if (workdir !== undefined) await rm(workdir, { recursive: true, force: true }) + workdir = undefined +}) + +async function bootAndEof(): Promise<{ stdout: string; code: number }> { + workdir = await mkdtemp(join(tmpdir(), 'cordis-smoke-')) + const cwd = workdir + return new Promise((resolve, reject) => { + const proc = spawn( + process.execPath, + // --expose-internals: cordis.yml loads the HMR plugin (mirrors demo:cordis). + ['--expose-internals', '--import', tsxLoader, binScript, configPath], + { + cwd, + env: { + ...process.env, + TSX_TSCONFIG_PATH: repoTsconfig, + // A dummy key so llm-deepseek's apply() (key-PRESENT check only) boots. + // No prompt is sent, so the adapter never streams — no network call. + DEEPSEEK_API_KEY: 'keyless-smoke-no-call', + }, + stdio: ['pipe', 'pipe', 'pipe'], + }, + ) + child = proc + let stdout = '' + let stderr = '' + proc.stdout.setEncoding('utf8') + proc.stdout.on('data', (chunk: string) => { stdout += chunk }) + proc.stderr.setEncoding('utf8') + proc.stderr.on('data', (chunk: string) => { stderr += chunk }) + + const timer = setTimeout(() => { + proc.kill('SIGKILL') + reject(new Error(`cordis-agent did not exit within 10s. stdout:\n${stdout}\nstderr:\n${stderr}`)) + }, 10_000) + + proc.on('exit', (code) => { + clearTimeout(timer) + if (code === 0) resolve({ stdout, code }) + else reject(new Error(`cordis-agent exited ${code}. stderr:\n${stderr}`)) + }) + proc.on('error', (err) => { clearTimeout(timer); reject(err) }) + + // No prompt — just EOF, so the stdio UI exits without ever running a turn. + proc.stdin.end() + }) +} + +describe('cordis-agent keyless smoke (real cordis.yml via the Loader)', () => { + it('boots the full plugin tree incl. tool-cordis, prints its banner, and exits cleanly on EOF', async () => { + const { stdout, code } = await bootAndEof() + expect(code).toBe(0) + expect(stdout).toContain('cordis-agent ready.') + }, 15_000) +}) diff --git a/package.json b/package.json index bba471ea5f..e4b071718a 100644 --- a/package.json +++ b/package.json @@ -63,6 +63,7 @@ "hygiene": "pnpm run knip && pnpm run publint && pnpm run constraints && pnpm run verify-node-next-types", "demo:echo": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/echo-agent/cordis.yml", "demo:repl": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/coding-agent/cordis.yml", + "demo:cordis": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/cordis-agent/cordis.yml", "demo:acp": "node --import tsx packages/ui/acp-agent/src/bin.ts examples/acp-agent/cordis.yml", "postinstall": "node scripts/install-lefthook.mjs" }, From 809329ea1ab6486fcc0774d39748eb8d6941adec Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Wed, 8 Jul 2026 11:47:51 +0800 Subject: [PATCH 120/232] =?UTF-8?q?scripts:=20gen-cordis-api=20=E2=80=94?= =?UTF-8?q?=20the=20generated=20runtime=20API=20catalog=20pipeline?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Emits packages/cordis/tool-cordis/src/api-catalog.ts (the data cordis_inspect serves the model) from the same JSDoc-enforcing AST walk as docs/cordis-catalog (collectServices/collectEvents, plus the now-exported INHERITED_SERVICES table): service summaries + method signatures, event modes + signatures, and the transitive closure of type shapes the signatures reference — so a mounted plugin reads that a bash run's stdout is { text, truncated } instead of guessing. verify-cordis-api joins doc-sync as the freshness gate. --- package.json | 4 +- scripts/gen-cordis-api.ts | 247 ++++++++++++++++++++++++++++++++++ scripts/gen-cordis-catalog.ts | 2 +- 3 files changed, 251 insertions(+), 2 deletions(-) create mode 100644 scripts/gen-cordis-api.ts diff --git a/package.json b/package.json index e4b071718a..652a8d88c4 100644 --- a/package.json +++ b/package.json @@ -47,6 +47,8 @@ "gen-cordis-catalog": "tsx scripts/gen-cordis-catalog.ts", "gen-rfc-index": "tsx scripts/gen-rfc-index.ts", "verify-cordis-catalog": "tsx scripts/gen-cordis-catalog.ts --check", + "gen-cordis-api": "tsx scripts/gen-cordis-api.ts", + "verify-cordis-api": "tsx scripts/gen-cordis-api.ts --check", "verify-export-jsdoc": "tsx scripts/verify-export-jsdoc.ts", "gen-tool-catalog": "tsx scripts/gen-tool-catalog.ts", "verify-tool-catalog": "tsx scripts/gen-tool-catalog.ts --check", @@ -59,7 +61,7 @@ "gen-module-graph": "tsx scripts/gen-module-graph.ts", "verify-module-graph": "tsx scripts/gen-module-graph.ts --check", "constraints": "tsx scripts/check-workspace-constraints.ts", - "doc-sync": "pnpm run doc-typecheck && pnpm run verify-cordis-catalog && pnpm run verify-export-jsdoc && pnpm run verify-tool-catalog && pnpm run verify-config-catalog && pnpm run verify-persistence-catalog && pnpm run verify-doc-graphs && pnpm run verify-md-wrap && pnpm run verify-md-links && pnpm run verify-doc-refs && pnpm run verify-package-paths && pnpm run verify-mermaid && pnpm run verify-rfc-classification && pnpm run verify-rfc-format && pnpm run verify-type-equiv && pnpm run verify-translation-pairing && pnpm run verify-doc-budgets", + "doc-sync": "pnpm run doc-typecheck && pnpm run verify-cordis-catalog && pnpm run verify-cordis-api && pnpm run verify-export-jsdoc && pnpm run verify-tool-catalog && pnpm run verify-config-catalog && pnpm run verify-persistence-catalog && pnpm run verify-doc-graphs && pnpm run verify-md-wrap && pnpm run verify-md-links && pnpm run verify-doc-refs && pnpm run verify-package-paths && pnpm run verify-mermaid && pnpm run verify-rfc-classification && pnpm run verify-rfc-format && pnpm run verify-type-equiv && pnpm run verify-translation-pairing && pnpm run verify-doc-budgets", "hygiene": "pnpm run knip && pnpm run publint && pnpm run constraints && pnpm run verify-node-next-types", "demo:echo": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/echo-agent/cordis.yml", "demo:repl": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/coding-agent/cordis.yml", diff --git a/scripts/gen-cordis-api.ts b/scripts/gen-cordis-api.ts new file mode 100644 index 0000000000..34583d2ead --- /dev/null +++ b/scripts/gen-cordis-api.ts @@ -0,0 +1,247 @@ +/** + * Generate (and verify) the runtime cordis API catalog the `cordis_inspect` + * tool serves to the model: packages/cordis/tool-cordis/src/api-catalog.ts. + * + * The artifact is the machine-readable sibling of docs/cordis-catalog: it + * reuses `collectServices` / `collectEvents` from `gen-cordis-catalog.ts` (the + * same JSDoc-completeness-enforcing AST walk), so the API the model reads at + * runtime and the API the docs render cannot diverge. Emitted as a typed + * TypeScript data module (not JSON): it compiles under the package tsconfig, + * passes lint and the export-JSDoc gate, and is trivially covered by import. + * + * The data is trimmed for a model-facing text surface: per service the + * `ctx.` name, the first sentence of the class doc, and the raw method + * signatures; per event the name, `@mode`, signature, and first sentence of + * doc; the SHAPES of every exported interface/type-alias the service + * signatures reference (transitively — so a model can see that e.g. a + * `BashRunResult.stdout` is `{ text, truncated }`, not a string); plus the + * curated inherited `ctx` surface shared with the docs catalog. Source + * pointers are dropped (a `file:line` means nothing to the model) and entries + * are sorted deterministically. + * + * `tsx scripts/gen-cordis-api.ts` → write the artifact + * `tsx scripts/gen-cordis-api.ts --check` → exit 1 if the committed file is + * stale (CI / pre-push gate) + */ + +import { globSync, readFileSync, writeFileSync } from 'node:fs' +import { resolve } from 'node:path' +import ts from 'typescript' +import { collectEvents, collectServices, INHERITED_SERVICES } from './gen-cordis-catalog.ts' + +const root = resolve(import.meta.dirname, '..') +const OUT = 'packages/cordis/tool-cordis/src/api-catalog.ts' + +/** Declarations longer than this render as a truncated stub — a shape the model cannot skim teaches nothing. */ +const MAX_DECL_CHARS = 1500 + +/** The first sentence of a (possibly multi-line) JSDoc prose block. */ +function firstSentence(doc: string): string { + const line = doc.split('\n', 1)[0] ?? '' + const match = /^(.*?[.!?])(?:\s|$)/.exec(line) + return (match?.[1] ?? line).trim() +} + +/** Render a string as a single-quoted, lint-clean TS literal. */ +function quote(value: string): string { + return `'${value.replace(/\\/g, '\\\\').replace(/'/g, '\\\'').replace(/\n/g, '\\n')}'` +} + +/** + * Every exported `interface` / `type` declaration under `packages///src`, + * printed without comments, keyed by name. A name declared in more than one + * package (e.g. each plugin's `Config`) is ambiguous and dropped entirely — + * serving the wrong package's shape is worse than serving none. + */ +function collectTypeDecls(scanRoot: string = root): Map { + const printer = ts.createPrinter({ removeComments: true }) + const decls = new Map() + const ambiguous = new Set() + for (const rel of globSync('packages/*/*/src/*.ts', { cwd: scanRoot }).sort()) { + const abs = resolve(scanRoot, rel) + const sf = ts.createSourceFile(abs, readFileSync(abs, 'utf8'), ts.ScriptTarget.Latest, true) + for (const stmt of sf.statements) { + if (!ts.isInterfaceDeclaration(stmt) && !ts.isTypeAliasDeclaration(stmt)) continue + if (!(stmt.modifiers?.some(m => m.kind === ts.SyntaxKind.ExportKeyword) ?? false)) continue + const name = stmt.name.text + if (decls.has(name)) { + ambiguous.add(name) + continue + } + const printed = printer.printNode(ts.EmitHint.Unspecified, stmt, sf).replace(/\r/g, '') + decls.set(name, printed.length > MAX_DECL_CHARS + ? `${printed.slice(0, MAX_DECL_CHARS)} /* …truncated — full shape in source */` + : printed) + } + } + for (const name of ambiguous) decls.delete(name) + return decls +} + +/** + * The transitive closure of type names referenced by the seed texts: every + * collected declaration whose name appears (word-bounded) in a seed or in an + * already-included declaration, sorted by name. + */ +function referencedTypes(seeds: string[], decls: Map): { name: string; declaration: string }[] { + const included = new Map() + let frontier = seeds + while (frontier.length > 0) { + const next: string[] = [] + for (const [name, declaration] of decls) { + if (included.has(name)) continue + const pattern = new RegExp(`\\b${name}\\b`) + if (frontier.some(text => pattern.test(text))) { + included.set(name, declaration) + next.push(declaration) + } + } + frontier = next + } + return [...included].map(([name, declaration]) => ({ name, declaration })).sort((a, b) => a.name.localeCompare(b.name)) +} + +/** Render the whole generated module (pure, deterministic given sorted collector output). */ +function render(): string { + const services = collectServices() + const events = collectEvents().sort((a, b) => a.name.localeCompare(b.name)) + const types = referencedTypes(services.flatMap(service => service.methods), collectTypeDecls()) + const lines: string[] = [ + '/**', + ' * Generated by scripts/gen-cordis-api.ts — do not edit by hand; run', + ' * `pnpm run gen-cordis-api` to regenerate (freshness-gated by', + ' * `pnpm run verify-cordis-api` in doc-sync).', + ' *', + ' * The machine-readable cordis API catalog `cordis_inspect` serves to the', + ' * model: harness services (summary + public method signatures), harness', + ' * events (mode + signature), and the inherited `ctx` surface. Produced by', + ' * the same AST walk as docs/cordis-catalog, so this data and the rendered', + ' * docs cannot diverge.', + ' *', + ' * @module @deepseek-ai/dsh-tool-cordis/api-catalog', + ' */', + '', + '/** One harness `ctx.` service: its one-line summary and public method signatures. */', + 'export interface ServiceApiEntry {', + ' /** The `ctx.` name, e.g. `tools`. */', + ' key: string', + ' /** First sentence of the service class JSDoc. */', + ' summary: string', + ' /** Public method signatures, bodies stripped, in source order. */', + ' methods: readonly string[]', + '}', + '', + '/** One harness event: its dispatch mode, exact signature, and one-line summary. */', + 'export interface EventApiEntry {', + ' /** The scoped event name, e.g. `agent/status`. */', + ' name: string', + ' /** The dispatch mode from the declaration\'s `@mode` tag. */', + ' mode: string', + ' /** The exact listener signature, whitespace-normalized. */', + ' signature: string', + ' /** First sentence of the event JSDoc. */', + ' summary: string', + '}', + '', + '/** One inherited (cordis core + loader/hmr/timer) `ctx` member group with its summary. */', + 'export interface InheritedApiEntry {', + ' /** The `ctx` member name(s), e.g. `ctx.on / ctx.once`. */', + ' name: string', + ' /** One-line summary of what the member does. */', + ' summary: string', + '}', + '', + '/** One named type shape the service signatures reference. */', + 'export interface TypeApiEntry {', + ' /** The exported type/interface name, e.g. `BashRunResult`. */', + ' name: string', + ' /** The full declaration text, comments stripped. */', + ' declaration: string', + '}', + '', + '/** Every harness `ctx.` service, sorted by key. */', + 'export const SERVICE_API: readonly ServiceApiEntry[] = [', + ] + for (const service of services) { + lines.push(' {') + lines.push(` key: ${quote(service.key)},`) + lines.push(` summary: ${quote(firstSentence(service.doc))},`) + if (service.methods.length === 0) { + lines.push(' methods: [],') + } else { + lines.push(' methods: [') + for (const method of service.methods) lines.push(` ${quote(method)},`) + lines.push(' ],') + } + lines.push(' },') + } + lines.push( + ']', + '', + '/** Every harness event, sorted by name. */', + 'export const EVENT_API: readonly EventApiEntry[] = [', + ) + for (const event of events) { + lines.push(' {') + lines.push(` name: ${quote(event.name)},`) + lines.push(` mode: ${quote(event.mode)},`) + lines.push(` signature: ${quote(event.signature)},`) + lines.push(` summary: ${quote(firstSentence(event.doc))},`) + lines.push(' },') + } + lines.push( + ']', + '', + '/** Shapes of every exported type the SERVICE_API signatures reference (transitively), sorted by name. */', + 'export const TYPE_API: readonly TypeApiEntry[] = [', + ) + for (const type of types) { + lines.push(' {') + lines.push(` name: ${quote(type.name)},`) + lines.push(` declaration: ${quote(type.declaration)},`) + lines.push(' },') + } + lines.push( + ']', + '', + '/** The inherited `ctx` surface (cordis core + loader/hmr/timer), in curated order. */', + 'export const INHERITED_CTX_API: readonly InheritedApiEntry[] = [', + ) + for (const inherited of INHERITED_SERVICES) { + lines.push(` { name: ${quote(inherited.name)}, summary: ${quote(inherited.summary)} },`) + } + lines.push(']', '') + return lines.join('\n') +} + +/** CLI entry: default writes the artifact, `--check` fails if the committed + * copy is stale. Guarded behind an entry-point check so importing this module + * for tests neither regenerates the committed file nor calls process.exit. */ +function main(): void { + const content = render() + if (process.argv.includes('--check')) { + let committed: string | null = null + try { + committed = readFileSync(resolve(root, OUT), 'utf8') + } catch { + // Only ENOENT (not yet generated) is expected; a present-but-unreadable + // file is not a state this repo produces. Either way the remedy is the + // same — regenerate — so treat a read failure as "stale". + committed = null + } + if (committed === content) { + console.log(`gen-cordis-api: ${OUT} is up to date.`) + process.exit(0) + } + console.error(`gen-cordis-api: ${OUT} is stale. Run \`pnpm run gen-cordis-api\` and commit ${OUT}.`) + process.exit(1) + } + + writeFileSync(resolve(root, OUT), content) + console.log(`gen-cordis-api: wrote ${OUT}.`) +} + +// Run only when invoked as a script, not when imported by a test. +if (process.argv[1] && import.meta.filename === resolve(process.argv[1])) { + main() +} diff --git a/scripts/gen-cordis-catalog.ts b/scripts/gen-cordis-catalog.ts index 6220006ede..9b8141807e 100644 --- a/scripts/gen-cordis-catalog.ts +++ b/scripts/gen-cordis-catalog.ts @@ -327,7 +327,7 @@ const INHERITED_EVENTS: InheritedEntry[] = [ { name: 'loader/patch-context', summary: 'A context is being patched during a reload.', source: 'vendor/loader/src/index.ts:27' }, ] -const INHERITED_SERVICES: InheritedEntry[] = [ +export const INHERITED_SERVICES: InheritedEntry[] = [ { name: 'ctx.on / ctx.once', summary: 'Register an event listener (disposable).', source: 'vendor/cordis/src/events.ts:29' }, { name: 'ctx.emit / ctx.parallel / ctx.serial / ctx.bail / ctx.waterfall', summary: 'Dispatch an event (sync / awaited / first-bail / veto-chain).', source: 'vendor/cordis/src/events.ts:29' }, { name: 'ctx.plugin / ctx.inject', summary: 'Load a plugin / declare required services.', source: 'vendor/cordis/src/registry.ts:144' }, From e51e58e9934cc3127854f0370ca918d3c0a01bad Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Wed, 8 Jul 2026 11:50:12 +0800 Subject: [PATCH 121/232] chore: register the cordis group across repo gates and docs Everything outside the package and example that a new top-level group and a new demo touch: GROUP_ORDER in gen-module-graph and gen-doc-graphs (plus the tools-service consumers list, the APP_EXAMPLES entry, and the graph-atlas label/mode rows), the knip e2e entries, the packages/README group row, the AGENTS.md layout and demo lines, and the regenerated module-graph / config-catalog / graph-atlas / capability-seams / composition artifacts. AGENTS.md and examples/AGENTS.md word-budget ceilings rise to current+5% (1802 / 653): the new group and demo rows are genuine additions to both docs, not condensable restatements. --- AGENTS.md | 2 ++ docs/capability-seams.md | 4 ++- docs/config-catalog.md | 18 +++++++++++++ docs/graph-atlas.md | 1 + docs/module-graph.md | 5 ++++ examples/AGENTS.md | 1 + examples/README.md | 6 +++++ examples/cordis-agent/composition.md | 40 ++++++++++++++++++++++++++++ knip.json | 1 + packages/README.md | 1 + scripts/doc-budgets.manifest.json | 4 +-- scripts/gen-doc-graphs.ts | 13 ++++++++- scripts/gen-module-graph.ts | 1 + 13 files changed, 93 insertions(+), 4 deletions(-) create mode 100644 examples/cordis-agent/composition.md diff --git a/AGENTS.md b/AGENTS.md index 1ef6af2ba0..c272ad5dda 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -20,6 +20,7 @@ packages/ Harness packages at packages///, all named @deepseek-ai subagent/ subagent seam + spawn/fork/ACP backends + delegation tool todo/ the todo_write tool guard/ loop-hygiene plugins + cordis/ self-referential toolset: the agent inspects/mounts plugins in its own runtime hooks/ Claude Code / Codex hook bridges + shared wire-protocol library session-persistence/ persistence seam + JSONL/SQLite backends ui/ ACP bridge + app-boot glue + the stdio/ACP app bins @@ -48,6 +49,7 @@ pnpm run hygiene # knip + publint + workspace constraints + NodeNext cons pnpm run doc-sync # all documentation gates; see the doc-sync script in package.json pnpm run demo:echo # mock-model REPL, no key needed pnpm run demo:repl # real REPL coding agent (needs DEEPSEEK_API_KEY) +pnpm run demo:cordis # self-referential demo: the agent modifies its own runtime (needs key) pnpm run demo:acp # ACP server agent (needs DEEPSEEK_API_KEY) ``` diff --git a/docs/capability-seams.md b/docs/capability-seams.md index 12ce8033b9..b85fa40305 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -31,6 +31,7 @@ flowchart LR pkg_tool_web["tool-web"] svc_tools["ctx.tools
Tool registry and execution waterfall"] pkg_tool_bash["tool-bash"] + pkg_tool_cordis["tool-cordis"] pkg_tool_subagent["tool-subagent"] pkg_tool_todo["tool-todo"] svc_agents["ctx.agents
Agent registry"] @@ -121,6 +122,7 @@ flowchart LR svc_tools --> pkg_acp svc_tools --> pkg_agent_loop svc_tools --> pkg_tool_bash + svc_tools --> pkg_tool_cordis svc_tools --> pkg_tool_fs svc_tools --> pkg_tool_subagent svc_tools --> pkg_tool_todo @@ -135,7 +137,7 @@ flowchart LR | `ctx.sessions` | `core` | [`session`](../packages/core/session) | - | [`agent-loop`](../packages/core/agent-loop), [`agent`](../packages/core/agent), [`session-persistence`](../packages/session-persistence/session-persistence), [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`invariants`](../packages/support/invariants) | - | Owns append-only Session instances and emits the durable session event feed. | | `ctx.sessionPersistence` | `seam` | [`session-persistence`](../packages/session-persistence/session-persistence) | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp) | - | Backends persist the same SessionEvent vocabulary; apps choose a backend at composition time. | | `ctx.systemPrompt` | `core` | [`system-prompt`](../packages/core/system-prompt) | - | [`agent-loop`](../packages/core/agent-loop), [`tools`](../packages/core/tools), [`tool-fs`](../packages/fs/tool-fs), [`tool-web`](../packages/web/tool-web) | - | Collects prompt sections and model-facing tool schemas for each step. | -| `ctx.tools` | `core` | [`tools`](../packages/core/tools) | - | [`agent-loop`](../packages/core/agent-loop), [`tool-bash`](../packages/bash/tool-bash), [`tool-fs`](../packages/fs/tool-fs), [`tool-subagent`](../packages/subagent/tool-subagent), [`tool-todo`](../packages/todo/tool-todo), [`tool-web`](../packages/web/tool-web), [`acp`](../packages/ui/acp) | - | Registers tool definitions, exposes schemas to the prompt, and routes calls through tools/pre-execute and tools/post-execute. | +| `ctx.tools` | `core` | [`tools`](../packages/core/tools) | - | [`agent-loop`](../packages/core/agent-loop), [`tool-bash`](../packages/bash/tool-bash), [`tool-cordis`](../packages/cordis/tool-cordis), [`tool-fs`](../packages/fs/tool-fs), [`tool-subagent`](../packages/subagent/tool-subagent), [`tool-todo`](../packages/todo/tool-todo), [`tool-web`](../packages/web/tool-web), [`acp`](../packages/ui/acp) | - | Registers tool definitions, exposes schemas to the prompt, and routes calls through tools/pre-execute and tools/post-execute. | | `ctx.agents` | `core` | [`agent`](../packages/core/agent) | - | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp), [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`stdio-agent`](../packages/ui/stdio-agent), [`invariants`](../packages/support/invariants) | - | Owns live Agent handles and the create/resume factory seam. | | `ctx.agentLoop` | `bundle` | [`agent-loop`](../packages/core/agent-loop) | - | [`agent-core`](../packages/core/agent-core) | - | The one concrete loop plugin; extension packages depend on dsh-agent events and services, not on this package. | | `ctx.bash` | `seam` | [`bash`](../packages/bash/bash) | [`bash-local`](../packages/bash/bash-local) | [`tool-bash`](../packages/bash/tool-bash), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | - | The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors can replace bash-local. | diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 2429fe3163..d466bff4c0 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -670,6 +670,24 @@ export interface Config { Source: [`packages/core/system-prompt/src/index.ts:179`](../packages/core/system-prompt/src/index.ts) +## `@deepseek-ai/dsh-tool-cordis` + +Requires: `tools` + +```ts config-catalog +/** Config for the tool-cordis plugin: the sandbox evaluation bound. */ +export interface Config { + /** + * Milliseconds the SYNCHRONOUS portion of mount code may run in the vm + * before evaluation is aborted (default 5000). An async body escapes this + * bound — see docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md for the trust stance. + */ + vmTimeoutMs?: number +} +``` + +Source: [`packages/cordis/tool-cordis/src/index.ts:49`](../packages/cordis/tool-cordis/src/index.ts) + ## `@deepseek-ai/dsh-tool-fs` Requires: `tools` · `fs` · `systemPrompt` diff --git a/docs/graph-atlas.md b/docs/graph-atlas.md index 2a3d674bec..60de01ef81 100644 --- a/docs/graph-atlas.md +++ b/docs/graph-atlas.md @@ -14,6 +14,7 @@ The process decision behind this index is recorded in [the documentation graph R | [capability seams and core services](capability-seams.md) | `hybrid generated` | | [echo-agent app composition](../examples/echo-agent/composition.md) | `hybrid generated` | | [coding-agent app composition](../examples/coding-agent/composition.md) | `hybrid generated` | +| [cordis-agent app composition](../examples/cordis-agent/composition.md) | `hybrid generated` | | [acp-agent app composition](../examples/acp-agent/composition.md) | `hybrid generated` | | [event producer/consumer matrix](event-producer-consumer.md) | `hybrid generated` | | [agent turn and step lifecycle](agent-lifecycle.md) | `curated` | diff --git a/docs/module-graph.md b/docs/module-graph.md index 1e4e70151f..beabf14c69 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -61,6 +61,9 @@ flowchart TD subgraph group_todo["packages/todo"] pkg_tool_todo["tool-todo"] end + subgraph group_cordis["packages/cordis"] + pkg_tool_cordis["tool-cordis"] + end subgraph group_hooks["packages/hooks"] pkg_hook_protocol["hook-protocol"] pkg_hooks_claude["hooks-claude"] @@ -164,6 +167,7 @@ flowchart TD pkg_tool_todo --> pkg_agent pkg_tool_todo --> pkg_session pkg_tool_todo --> pkg_tools + pkg_tool_cordis --> pkg_tools pkg_hooks_codex --> pkg_agent pkg_hooks_codex --> pkg_hook_protocol pkg_hooks_codex --> pkg_llm @@ -264,6 +268,7 @@ flowchart TD | [`tool-web`](../packages/web/tool-web) | `web` | [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`web`](../packages/web/web) | | [`timeout-policy`](../packages/timeout/timeout-policy) | `timeout` | [`llm`](../packages/llm/llm), [`timeout`](../packages/util/timeout), [`tools`](../packages/core/tools) | | [`tool-todo`](../packages/todo/tool-todo) | `todo` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | +| [`tool-cordis`](../packages/cordis/tool-cordis) | `cordis` | [`tools`](../packages/core/tools) | | [`hooks-codex`](../packages/hooks/hooks-codex) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools) | | [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | `guard` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools) | diff --git a/examples/AGENTS.md b/examples/AGENTS.md index 6c1cc717df..94597371cf 100644 --- a/examples/AGENTS.md +++ b/examples/AGENTS.md @@ -21,6 +21,7 @@ A keyless smoke that spawns the example from a temp cwd must set `TSX_TSCONFIG_P |---|---|---| | `echo-agent` | `tests/echo.e2e.ts` — boots the real `cordis.yml`, drives the echo tool round-trip and the direct canned reply | **N/A — keyless by nature** (the `mock-echo` model has no real provider) | | `coding-agent` | `tests/keyless-smoke.e2e.ts` — boots the full real tree (dummy key, no prompt → no model call), asserts banner + clean exit | `tests/{full-loop,coding-task,resume,compaction,todo-write}.e2e.ts` — real model + real bash + real todo_write, world-verified | +| `cordis-agent` | `tests/keyless-smoke.e2e.ts` — boots the real tree incl. `@deepseek-ai/dsh-tool-cordis` by package name; the tool logic is unit-tested in `packages/cordis/tool-cordis` | `tests/cordis-tools.e2e.ts` — real model mounts a listener (tagged line fires), builds+calls its own tool, composes two mounts via provide/inject | | `acp-agent` | `pnpm run test:snapshot` — boots the real ACP subprocess and replays a recorded session keyless (incl. the hook matrix: a scenario per hook point × outcome for BOTH the Claude and Codex bridges — block, deny, ask, context-fold, force-continue); `tests/acp.e2e.ts` also asserts stdout purity without a key | `tests/acp.e2e.ts` — real ACP prompt, verifies a file the agent wrote; `tests/hooks.e2e.ts` — a real `PreToolUse` hook blocks bash, verifies the file is NOT written | See [the root AGENTS.md](../AGENTS.md) for repo-wide conventions and [docs/architecture.md](../docs/architecture.md) for the design. diff --git a/examples/README.md b/examples/README.md index 1e3134ba2d..c308df73e1 100644 --- a/examples/README.md +++ b/examples/README.md @@ -19,6 +19,12 @@ A REPL agent demo: DeepSeek V4 + the `read`/`write`/`edit` filesystem tools + th Run with: `pnpm run demo:repl` (needs `DEEPSEEK_API_KEY` in the environment or a gitignored repo-root `.env`). See [coding-agent/README.md](coding-agent/README.md) for details. +## cordis-agent + +The **self-referential** demo: the coding spine plus [`@deepseek-ai/dsh-tool-cordis`](../packages/cordis/tool-cordis), whose three tools (`cordis_inspect` / `cordis_mount` / `cordis_unmount`) let the agent inspect the live cordis runtime it runs inside, mount model-written plugins into it (an event listener, a brand-new tool for itself, or a service another mount injects), and dispose them again — all dynamic mounts grouped under one `cordis-dynamic` fiber subtree. + +Run with: `pnpm run demo:cordis` (needs `DEEPSEEK_API_KEY`). See [cordis-agent/README.md](cordis-agent/README.md) for the staged demo script and [the toolset RFC](../docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md) for the design and sandbox caveats. + ## acp-agent An agent demo exposed as an **Agent Client Protocol (ACP)** server over JSON-RPC stdio, via the [`@deepseek-ai/dsh-acp-agent`](../packages/ui/acp-agent) app — drive it from Zed or any other ACP client. Also the home of the keyless snapshot tests. diff --git a/examples/cordis-agent/composition.md b/examples/cordis-agent/composition.md new file mode 100644 index 0000000000..6822129c26 --- /dev/null +++ b/examples/cordis-agent/composition.md @@ -0,0 +1,40 @@ + + +# Cordis Agent App Composition + +The self-referential demo puts @deepseek-ai/dsh-tool-cordis on the coding spine, letting the agent inspect its own runtime and mount/unmount plugins into it. + +```mermaid +flowchart LR + cfg["examples/cordis-agent
cordis.yml"] + plugin_cordis_hmr["hmr
@cordisjs/plugin-hmr"] + cfg --> plugin_cordis_hmr + plugin_cordis_llm_deepseek["llm-deepseek
@deepseek-ai/dsh-llm-deepseek"] + cfg --> plugin_cordis_llm_deepseek + plugin_cordis_bash["bash
@deepseek-ai/dsh-bash-local"] + cfg --> plugin_cordis_bash + plugin_cordis_stdio_agent["stdio-agent
@deepseek-ai/dsh-stdio-agent"] + cfg --> plugin_cordis_stdio_agent + plugin_cordis_stdio_agent --> bundle_agent_core["@deepseek-ai/dsh-agent-core"] + plugin_cordis_stdio_agent --> bundle_jsonl["@deepseek-ai/dsh-session-persistence-jsonl"] + plugin_cordis_stdio_agent --> frontdoor_stdio["readline UI
console logger
pre-created main agent"] + bundle_agent_core --> spine_llm["ctx.llm"] + bundle_agent_core --> spine_sessions["ctx.sessions"] + bundle_agent_core --> spine_tools["ctx.tools + tool-bash"] + bundle_agent_core --> spine_loop["ctx.agents + ctx.agentLoop"] + plugin_cordis_tool_cordis["tool-cordis
@deepseek-ai/dsh-tool-cordis"] + cfg --> plugin_cordis_tool_cordis +``` + +| Plugin id | Package / module | +| --- | --- | +| `hmr` | `@cordisjs/plugin-hmr` | +| `llm-deepseek` | `@deepseek-ai/dsh-llm-deepseek` | +| `bash` | `@deepseek-ai/dsh-bash-local` | +| `stdio-agent` | `@deepseek-ai/dsh-stdio-agent` | +| `tool-cordis` | `@deepseek-ai/dsh-tool-cordis` | + +Source config: [`examples/cordis-agent/cordis.yml`](cordis.yml). + +Maintenance mode: hybrid: the leaf plugin list is parsed from its `cordis.yml`; app package expansion is curated from package source. diff --git a/knip.json b/knip.json index 407f892775..198cad3cce 100644 --- a/knip.json +++ b/knip.json @@ -8,6 +8,7 @@ "examples/echo-agent/src/*.ts", "examples/echo-agent/tests/**/*.e2e.ts", "examples/coding-agent/tests/**/*.e2e.ts", + "examples/cordis-agent/tests/**/*.e2e.ts", "examples/acp-agent/tests/**/*.e2e.ts", "examples/*/tests/**/*.snapshot.ts" ], diff --git a/packages/README.md b/packages/README.md index bc09826777..d7c3c4caf1 100644 --- a/packages/README.md +++ b/packages/README.md @@ -19,6 +19,7 @@ Packages are grouped by modular role at `packages///`. The group dir | [`timeout/`](timeout/README.md) | Tool-call timeout policy: the `tools/execute` deadline enforcer | Product — stable surface | | [`todo/`](todo/README.md) | Todo/planning family: the model-facing `todo_write` tool | Product — stable surface | | [`guard/`](guard/README.md) | Loop-hygiene guards: advisory repeat-call reminders | Product — stable surface | +| [`cordis/`](cordis/README.md) | Self-referential runtime toolset: inspect the live runtime's plugins and services, mount/unmount model-written plugins ([design](../docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md)) | Product — stable surface | | [`hooks/`](hooks/README.md) | Hook bridges + the shared Claude Code / Codex wire-protocol library | Product — stable surface | | [`session-persistence/`](session-persistence/README.md) | Persistence capability family: the seam + JSONL/SQLite backends | Product — stable surface | | [`ui/`](ui/README.md) | Editor/client integration surfaces (the ACP bridge) + the app packages | Product — stable surface | diff --git a/scripts/doc-budgets.manifest.json b/scripts/doc-budgets.manifest.json index 337fc57763..8cadde12e9 100644 --- a/scripts/doc-budgets.manifest.json +++ b/scripts/doc-budgets.manifest.json @@ -1,11 +1,11 @@ { - "AGENTS.md": 1691, + "AGENTS.md": 1802, "docs/AGENTS.md": 1315, "docs/architecture.md": 1640, "docs/cordis-primer.md": 550, "docs/defensive-patterns.md": 550, "docs/testing.md": 800, - "examples/AGENTS.md": 610, + "examples/AGENTS.md": 653, "packages/AGENTS.md": 450, "packages/README.md": 610 } diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 14396a6645..d8d320df33 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -75,6 +75,7 @@ const GROUP_ORDER = [ 'subagent', 'web', 'todo', + 'cordis', 'hooks', 'session-persistence', 'support', @@ -121,7 +122,7 @@ const SERVICE_ROLES: ServiceRole[] = [ pkg: 'tools', title: 'Tool registry and execution waterfall', mode: 'core', - consumers: ['agent-loop', 'tool-bash', 'tool-fs', 'tool-subagent', 'tool-todo', 'tool-web', 'acp'], + consumers: ['agent-loop', 'tool-bash', 'tool-cordis', 'tool-fs', 'tool-subagent', 'tool-todo', 'tool-web', 'acp'], note: 'Registers tool definitions, exposes schemas to the prompt, and routes calls through tools/pre-execute and tools/post-execute.', }, { @@ -409,6 +410,14 @@ const APP_EXAMPLES = [ config: 'examples/coding-agent/cordis.yml', summary: 'The coding REPL demo adds the real DeepSeek adapter, filesystem tools, todo_write, compaction, and both subagent transports on top of the stdio app package.', }, + { + id: 'cordis', + rel: 'examples/cordis-agent/composition.md', + title: 'Cordis Agent App Composition', + label: 'examples/cordis-agent', + config: 'examples/cordis-agent/cordis.yml', + summary: 'The self-referential demo puts @deepseek-ai/dsh-tool-cordis on the coding spine, letting the agent inspect its own runtime and mount/unmount plugins into it.', + }, { id: 'acp', rel: 'examples/acp-agent/composition.md', @@ -718,6 +727,7 @@ function renderIndex(docs: GraphDoc[]): string { 'docs/capability-seams.md': 'capability seams and core services', 'examples/echo-agent/composition.md': 'echo-agent app composition', 'examples/coding-agent/composition.md': 'coding-agent app composition', + 'examples/cordis-agent/composition.md': 'cordis-agent app composition', 'examples/acp-agent/composition.md': 'acp-agent app composition', 'docs/event-producer-consumer.md': 'event producer/consumer matrix', 'docs/agent-lifecycle.md': 'agent turn and step lifecycle', @@ -728,6 +738,7 @@ function renderIndex(docs: GraphDoc[]): string { 'docs/capability-seams.md': 'hybrid generated', 'examples/echo-agent/composition.md': 'hybrid generated', 'examples/coding-agent/composition.md': 'hybrid generated', + 'examples/cordis-agent/composition.md': 'hybrid generated', 'examples/acp-agent/composition.md': 'hybrid generated', 'docs/event-producer-consumer.md': 'hybrid generated', 'docs/agent-lifecycle.md': 'curated', diff --git a/scripts/gen-module-graph.ts b/scripts/gen-module-graph.ts index fe39d325f8..dc66dc843e 100644 --- a/scripts/gen-module-graph.ts +++ b/scripts/gen-module-graph.ts @@ -47,6 +47,7 @@ const GROUP_ORDER = [ 'web', 'timeout', 'todo', + 'cordis', 'hooks', 'session-persistence', 'support', From db4576951320b1d7e73c320c8519a4f9a6657012 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Wed, 8 Jul 2026 11:51:24 +0800 Subject: [PATCH 122/232] feat(tool-cordis): Node-API traps + fs/web capability routing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The sandbox deliberately provides no Node API, and now says so instead of letting a bare ReferenceError teach nothing: require, the timers, and fetch are callable traps whose error redirects to the cordis alternative (inject: ['fs'] + ctx.fs, ['web'] + ctx.web, ['bash'] + ctx.bash, ['timer'] + ctx.setTimeout — a fiber effect, unwound on unmount). Only function-shaped globals are trapped; process/Buffer stay undefined so typeof feature probes stay inert. The mount description and the demo persona state the routing rule, and the demo mounts ctx.fs (local provider) and ctx.web (seam + keyless local fetch provider) so agent-built plugins have real capabilities to build on. Live-validated: a model that reached for Node setTimeout self-corrected to inject: ['timer'] in one step and built a working ctx.web fetch tool. --- docs/tool-catalog.md | 2 +- examples/README.md | 2 +- examples/cordis-agent/README.md | 2 +- examples/cordis-agent/composition.md | 9 +++ examples/cordis-agent/cordis.yml | 27 +++++++-- packages/cordis/tool-cordis/src/index.ts | 9 ++- packages/cordis/tool-cordis/src/sandbox.ts | 59 ++++++++++++++++--- .../cordis/tool-cordis/tests/mount.spec.ts | 37 +++++++++++- 8 files changed, 129 insertions(+), 18 deletions(-) diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md index e77716f736..f0a3fab35d 100644 --- a/docs/tool-catalog.md +++ b/docs/tool-catalog.md @@ -136,7 +136,7 @@ Source: [`packages/cordis/tool-cordis/src/index.ts`](../packages/cordis/tool-cor ### `cordis_mount` -Mount a NEW cordis plugin into the live runtime that is running THIS agent (self-modification). `code` runs as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — cannot declare inject, uses whatever services are on the parent context, and accessing a service without inject (e.g. ctx.bash) throws; use it only when you need no injected services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form for any plugin that needs bash, llm, sessions, etc. BEFORE calling a service from your code, read cordis_inspect what:"api" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:"events"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, async execute(args) { … } }))` to give yourself a new tool — it becomes callable on your NEXT step. A tool's `execute` MUST return an ARRAY of content blocks, e.g. `return [{ type: 'text', text: someString }]` — never a bare string. Mounts can COMPOSE: one plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically on unmount. Sandbox globals: `console` (tagged `[cordis:]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`; there is no `require`, `process`, `Buffer`, or network. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) The sandbox prevents accidental global pollution, not malice: `ctx` is the real, fully privileged runtime handle. +Mount a NEW cordis plugin into the live runtime that is running THIS agent (self-modification). `code` runs as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — cannot declare inject, uses whatever services are on the parent context, and accessing a service without inject (e.g. ctx.bash) throws; use it only when you need no injected services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form for any plugin that needs bash, llm, sessions, etc. BEFORE calling a service from your code, read cordis_inspect what:"api" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:"events"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, async execute(args) { … } }))` to give yourself a new tool — it becomes callable on your NEXT step. A tool's `execute` MUST return an ARRAY of content blocks, e.g. `return [{ type: 'text', text: someString }]` — never a bare string. Mounts can COMPOSE: one plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically on unmount. Sandbox globals: `console` (tagged `[cordis:]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned on unmount) — cordis_inspect what:"api" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) The sandbox prevents accidental global pollution, not malice: `ctx` is the real, fully privileged runtime handle. ```json { diff --git a/examples/README.md b/examples/README.md index c308df73e1..c86f83022a 100644 --- a/examples/README.md +++ b/examples/README.md @@ -21,7 +21,7 @@ Run with: `pnpm run demo:repl` (needs `DEEPSEEK_API_KEY` in the environment or a ## cordis-agent -The **self-referential** demo: the coding spine plus [`@deepseek-ai/dsh-tool-cordis`](../packages/cordis/tool-cordis), whose three tools (`cordis_inspect` / `cordis_mount` / `cordis_unmount`) let the agent inspect the live cordis runtime it runs inside, mount model-written plugins into it (an event listener, a brand-new tool for itself, or a service another mount injects), and dispose them again — all dynamic mounts grouped under one `cordis-dynamic` fiber subtree. +The **self-referential** demo: the coding spine plus [`@deepseek-ai/dsh-tool-cordis`](../packages/cordis/tool-cordis), whose three tools (`cordis_inspect` / `cordis_mount` / `cordis_unmount`) let the agent inspect the live cordis runtime it runs inside, mount model-written plugins into it (an event listener, a brand-new tool for itself, or a service another mount injects), and dispose them again — all dynamic mounts grouped under one `cordis-dynamic` fiber subtree. The `ctx.fs`/`ctx.web` services ride along provider-only, as the capabilities those plugins build on. Run with: `pnpm run demo:cordis` (needs `DEEPSEEK_API_KEY`). See [cordis-agent/README.md](cordis-agent/README.md) for the staged demo script and [the toolset RFC](../docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md) for the design and sandbox caveats. diff --git a/examples/cordis-agent/README.md b/examples/cordis-agent/README.md index ba9365498b..953533d35b 100644 --- a/examples/cordis-agent/README.md +++ b/examples/cordis-agent/README.md @@ -1,6 +1,6 @@ # cordis-agent -The self-referential harness demo: the coding-agent spine (DeepSeek V4 + local bash on the stdio chat app) plus [`@deepseek-ai/dsh-tool-cordis`](../../packages/cordis/tool-cordis/README.md), which hands the model three tools over the **live cordis runtime it is running inside** — inspect it, mount new plugins into it, and dispose them again. The design (sandbox semantics, mount lifecycle, cross-mount composition, caveats) lives in [the toolset RFC](../../docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md). +The self-referential harness demo: the coding-agent spine (DeepSeek V4 + local bash on the stdio chat app) plus [`@deepseek-ai/dsh-tool-cordis`](../../packages/cordis/tool-cordis/README.md), which hands the model three tools over the **live cordis runtime it is running inside** — inspect it, mount new plugins into it, and dispose them again. The `ctx.fs` and `ctx.web` services are mounted (provider-only, no model-facing file/web tools) so the plugins the agent writes have real capabilities to build on; Node built-ins are trapped in the sandbox and redirect to those services. The design (sandbox semantics, mount lifecycle, cross-mount composition, caveats) lives in [the toolset RFC](../../docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md). ## Run it diff --git a/examples/cordis-agent/composition.md b/examples/cordis-agent/composition.md index 6822129c26..015bec724e 100644 --- a/examples/cordis-agent/composition.md +++ b/examples/cordis-agent/composition.md @@ -14,6 +14,12 @@ flowchart LR cfg --> plugin_cordis_llm_deepseek plugin_cordis_bash["bash
@deepseek-ai/dsh-bash-local"] cfg --> plugin_cordis_bash + plugin_cordis_fs_local["fs-local
@deepseek-ai/dsh-fs-local"] + cfg --> plugin_cordis_fs_local + plugin_cordis_web["web
@deepseek-ai/dsh-web"] + cfg --> plugin_cordis_web + plugin_cordis_web_fetch_local["web-fetch-local
@deepseek-ai/dsh-web-fetch-local"] + cfg --> plugin_cordis_web_fetch_local plugin_cordis_stdio_agent["stdio-agent
@deepseek-ai/dsh-stdio-agent"] cfg --> plugin_cordis_stdio_agent plugin_cordis_stdio_agent --> bundle_agent_core["@deepseek-ai/dsh-agent-core"] @@ -32,6 +38,9 @@ flowchart LR | `hmr` | `@cordisjs/plugin-hmr` | | `llm-deepseek` | `@deepseek-ai/dsh-llm-deepseek` | | `bash` | `@deepseek-ai/dsh-bash-local` | +| `fs-local` | `@deepseek-ai/dsh-fs-local` | +| `web` | `@deepseek-ai/dsh-web` | +| `web-fetch-local` | `@deepseek-ai/dsh-web-fetch-local` | | `stdio-agent` | `@deepseek-ai/dsh-stdio-agent` | | `tool-cordis` | `@deepseek-ai/dsh-tool-cordis` | diff --git a/examples/cordis-agent/cordis.yml b/examples/cordis-agent/cordis.yml index b5e08c8325..65d5e6eb36 100644 --- a/examples/cordis-agent/cordis.yml +++ b/examples/cordis-agent/cordis.yml @@ -36,6 +36,23 @@ config: timeoutMs: 60000 +# Filesystem service for mounted plugins (ctx.fs) — the local provider only. +# The model-facing read/write/edit tools stay unmounted on purpose: this demo +# is about the agent building its own tools over the services. +- id: fs-local + name: '@deepseek-ai/dsh-fs-local' + config: + cwd: !!js process.cwd() + +# Web service for mounted plugins (ctx.web): the seam plus the anonymous local +# fetch provider (keyless). No search provider is loaded — ctx.web search +# calls fail loud until a deployment adds one. +- id: web + name: '@deepseek-ai/dsh-web' + +- id: web-fetch-local + name: '@deepseek-ai/dsh-web-fetch-local' + # The stdio chat app: the whole spine + front-door cluster, configured for the # self-referential demo driving a pre-created `main` agent. - id: stdio-agent @@ -54,10 +71,12 @@ `events` sections document the service methods, type shapes, and events your plugin code can use), cordis_mount to add a plugin (an event listener, a brand-new tool for yourself, or a service other mounts - inject), cordis_unmount to clean one up. Prefer small single-purpose - plugins, prefer plain notification events over waterfall events unless - you intend to intercept, and unmount what you no longer need. Report - results briefly. + inject), cordis_unmount to clean one up. In mounted code, NEVER use Node + built-ins (require/setTimeout/fetch) — use the runtime's cordis services + via inject: fs, web, bash, and timer (ctx.setTimeout). Prefer small + single-purpose plugins, prefer plain notification events over waterfall + events unless you intend to intercept, and unmount what you no longer + need. Report results briefly. # The self-referential cordis toolset (loaded after the app so ctx.tools exists). - id: tool-cordis diff --git a/packages/cordis/tool-cordis/src/index.ts b/packages/cordis/tool-cordis/src/index.ts index d4492b4768..de028b384a 100644 --- a/packages/cordis/tool-cordis/src/index.ts +++ b/packages/cordis/tool-cordis/src/index.ts @@ -152,8 +152,13 @@ export function apply(ctx: Context, config: Config): void { + 'Everything registered inside `apply` is cleaned up automatically on unmount. ' + 'Sandbox globals: `console` (tagged `[cordis:]`, writes through to the harness ' + 'terminal), `harness.defineTool`, `harness.registerTool`, ' - + '`btoa`, `atob`, `TextEncoder`, `TextDecoder`; ' - + 'there is no `require`, `process`, `Buffer`, or network. ' + + '`btoa`, `atob`, `TextEncoder`, `TextDecoder`. ' + + 'Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, ' + + 'never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect ' + + 'errors; `process` and `Buffer` are undefined. Instead use inject: [\'fs\'] + ctx.fs for ' + + 'files, inject: [\'web\'] + ctx.web for HTTP, inject: [\'bash\'] + ctx.bash for processes, ' + + 'and inject: [\'timer\'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, ' + + 'auto-cleaned on unmount) — cordis_inspect what:"api" shows what THIS runtime provides. ' + 'Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). ' + 'Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a ' + 'trailing `next` callback which MUST be called — returning without `next()` ' diff --git a/packages/cordis/tool-cordis/src/sandbox.ts b/packages/cordis/tool-cordis/src/sandbox.ts index 4d3eb16dfc..add858f3ce 100644 --- a/packages/cordis/tool-cordis/src/sandbox.ts +++ b/packages/cordis/tool-cordis/src/sandbox.ts @@ -1,10 +1,16 @@ /** * The `node:vm` sandbox `cordis_mount` code evaluates in: a fresh realm whose * globals are a tagged write-through console, the `harness` registration - * helpers, and the encoding primitives a bare vm context lacks. The sandbox - * guards against ACCIDENTAL global pollution only — it is not a security - * boundary; the `ctx` a mounted plugin's `apply` later receives is the real, - * fully privileged runtime handle, and that is the point of the toolset. + * helpers, the encoding primitives a bare vm context lacks, and callable traps + * over the Node APIs the sandbox deliberately withholds. Capability access is + * routed through cordis services, never Node built-ins: filesystem work goes + * through `ctx.fs`, network through `ctx.web`, processes through `ctx.bash`, + * timers through the `ctx.timer` helpers (fiber effects, unwound on unmount) + * — so everything a mounted plugin does stays inspectable and disposable. The + * sandbox guards against ACCIDENTAL global pollution only — it is not a + * security boundary; the `ctx` a mounted plugin's `apply` later receives is + * the real, fully privileged runtime handle, and that is the point of the + * toolset. * * @module @deepseek-ai/dsh-tool-cordis/sandbox */ @@ -60,19 +66,58 @@ function patchDualRealmInstanceof(sandbox: object): void { patch({ Object, Array, Function, Error, TypeError, RangeError, SyntaxError, Promise, RegExp, Date, Map, Set }) } +const TIMER_REDIRECT + = 'Node timers are unavailable. Use the cordis timer service instead: declare inject: [\'timer\'] on your plugin ' + + 'and call ctx.setTimeout / ctx.setInterval — those are fiber effects, cleaned up automatically on unmount.' + +/** + * The callable Node APIs the sandbox deliberately disables, each mapped to the + * cordis alternative its trap error names. Only FUNCTION-shaped globals are + * trapped — a data-shaped global like `process` stays `undefined`, because a + * throwing accessor would detonate the common `typeof process` feature probe + * at resolution time. + */ +const NODE_API_REDIRECTS: Record = { + require: + 'Node modules are unavailable. Use the cordis services on ctx instead — e.g. inject: [\'fs\'] for files, ' + + '[\'web\'] for HTTP, [\'bash\'] for processes; cordis_inspect what:"api" lists what THIS runtime provides.', + setTimeout: TIMER_REDIRECT, + setInterval: TIMER_REDIRECT, + setImmediate: TIMER_REDIRECT, + clearTimeout: TIMER_REDIRECT, + clearInterval: TIMER_REDIRECT, + fetch: + 'Network access goes through the cordis web service: declare inject: [\'web\'] and call ctx.web ' + + '(see cordis_inspect what:"api" for its methods).', +} + +/** Build the trap functions for {@link NODE_API_REDIRECTS}: calling one throws the redirect. */ +function nodeApiTraps(): Record never> { + const traps: Record never> = {} + for (const [name, redirect] of Object.entries(NODE_API_REDIRECTS)) { + traps[name] = () => { + throw new Error(`${name} is not available in the mount sandbox — ${redirect}`) + } + } + return traps +} + /** * Build the vm context one `cordis_mount` call evaluates in: the tagged - * console, the `harness` registration helpers, the encoding primitives, and - * the dual-realm `instanceof` patch, already `createContext`-ed. + * console, the `harness` registration helpers, the encoding primitives, the + * Node-API traps, and the dual-realm `instanceof` patch, already + * `createContext`-ed. * @param id - the mount id (`dyn-`), used as the console tag and filename stem. * @returns the contextified sandbox object to pass to {@link evaluateMountCode}. */ export function createSandbox(id: string): object { const sandbox = { + ...nodeApiTraps(), console: taggedConsole(id), harness: { defineTool: sandboxDefineTool, registerTool: sandboxRegisterTool }, // Web APIs absent from fresh vm contexts — made available so the model - // can encode/decode base64 without Buffer (which is also absent). + // can encode/decode base64 without Buffer (which is also absent). Host + // closures over Buffer, never Buffer itself. btoa: (s: string) => Buffer.from(s, 'utf-8').toString('base64'), atob: (s: string) => Buffer.from(s, 'base64').toString('utf-8'), TextEncoder, diff --git a/packages/cordis/tool-cordis/tests/mount.spec.ts b/packages/cordis/tool-cordis/tests/mount.spec.ts index 5bdde09b53..03038f818c 100644 --- a/packages/cordis/tool-cordis/tests/mount.spec.ts +++ b/packages/cordis/tool-cordis/tests/mount.spec.ts @@ -284,12 +284,12 @@ describe('cordis_mount', () => { expect(retry.isError).toBe(false) }) - it('isolates sandbox globals: no process/require, and globalThis writes do not leak to the host', async () => { + it('isolates sandbox globals: no process/Buffer, and globalThis writes do not leak to the host', async () => { const ctx = await setup() const result = await call(ctx, 'cordis_mount', { code: ` globalThis.__cordis_tool_leak = 'leaked' - return { name: 'probe-' + typeof process + '-' + typeof require, apply(ctx) {} } + return { name: 'probe-' + typeof process + '-' + typeof Buffer, apply(ctx) {} } `, }) expect(result.isError).toBe(false) @@ -297,6 +297,39 @@ describe('cordis_mount', () => { expect((globalThis as Record).__cordis_tool_leak).toBeUndefined() }) + it.each([ + ['require(\'fs\')', 'require is not available in the mount sandbox', 'inject: [\'fs\']'], + ['setTimeout(() => {}, 5)', 'setTimeout is not available in the mount sandbox', 'ctx.setTimeout'], + ['fetch(\'https://example.com\')', 'fetch is not available in the mount sandbox', 'ctx.web'], + ])('traps the Node API call %s with a redirect to the cordis alternative', async (invocation, trapMessage, redirect) => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { code: `${invocation}\nreturn (ctx) => {}` }) + expect(result.isError).toBe(true) + expect(text(result)).toContain(trapMessage) + expect(text(result)).toContain(redirect) + expect(text(await call(ctx, 'cordis_inspect', { what: 'dynamic' }))).toContain('(no dynamic plugins mounted)') + }) + + it('lets a mounted plugin schedule through the cordis timer service (inject: [\'timer\'])', async () => { + const ctx = await setup() + const log = vi.spyOn(console, 'log').mockImplementation(() => {}) + const result = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'ticker', + inject: ['timer'], + apply(ctx) { + ctx.setTimeout(() => console.log('tick'), 10) + }, + } + `, + }) + expect(result.isError).toBe(false) + expect(text(result)).toContain('state: active') + await new Promise(resolve => setTimeout(resolve, 50)) + expect(log).toHaveBeenCalledWith('[cordis:dyn-1]', 'tick') + }) + it('provides btoa/atob and the tagged console variants inside the sandbox', async () => { const ctx = await setup() const log = vi.spyOn(console, 'log').mockImplementation(() => {}) From a500c791f7faa2a29437a8a446f73541e0f056fb Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Wed, 8 Jul 2026 14:51:35 +0800 Subject: [PATCH 123/232] fix(tool-cordis): normalize the JSON-Schema dialect at the defineTool boundary MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Field sessions showed models writing tool schemas in the JSON-Schema dialect by strong prior — type: 'integer', required: false, then the full { type:'object', properties, required: [...] } wrapper — and the rejection text itself pushed a nearly-correct DSL attempt BACK to raw JSON Schema: one stats tool cost three consecutive schema errors before mounting. The boundary now normalizes wherever the input has exactly one meaning (wrapper unwrapped with the required array becoming per-property flags at any nesting level, integer → number, required: false → optional, all rebuilt as fresh host-realm objects) and rejects only genuinely meaningless input, enumerating the valid vocabulary in the error. Re-running the failing session mounts first-try. The mount description documents both accepted forms. --- ...6-07-08-self-referential-cordis-toolset.md | 4 +- docs/tool-catalog.md | 2 +- packages/cordis/tool-cordis/src/guard.ts | 102 ++++++++++++------ packages/cordis/tool-cordis/src/index.ts | 5 +- .../cordis/tool-cordis/tests/mount.spec.ts | 68 ++++++++++-- 5 files changed, 132 insertions(+), 49 deletions(-) diff --git a/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md b/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md index 95cb12b571..14e05b0afd 100644 --- a/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md +++ b/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md @@ -32,7 +32,7 @@ Sandbox globals are deliberately small: a tagged write-through `console` (`[cord Three boundary mechanisms make model-written code behave correctly across the realm seam. **Dual-realm `instanceof`**: most objects sandbox code touches are host-realm (tool `args`, event payloads, service returns), so a plain `x instanceof Array` in the vm would silently be false — a per-sandbox prelude gives the vm realm's own constructors a `Symbol.hasInstance` that checks both the vm constructor and its host counterpart, patching only vm-realm globals. **Realm normalization of tool results**: objects built inside the vm carry the vm realm's `Object.prototype`, which the session log's append-time plainness check (`isJsonValue` in `dsh-session`, a prototype-identity comparison) rejects, so the sandbox's `harness.defineTool` JSON round-trips every `execute` return into the host realm — which also projects it onto exactly what the log durably stores. **Guarded registration**: the `ctx` a mounted plugin receives is a proxy whose `tools.register` accepts only definitions returned by `harness.defineTool` (a marker symbol), so every dynamic tool passes SchemaSpec validation and realm normalization; everything else on `ctx` passes through with correct `this` binding, which is what keeps cross-mount `provide`/`inject` working. -Boundary errors are written around the mistakes models actually make (see [Consequences](#consequences) for how each was found): JSON Schema where the SchemaSpec DSL is expected gets a ✗/✓ example pair; an unbalanced `});` closing gets the vm's offending source line plus a "code is a function body" reminder; TypeScript syntax gets the remove-annotations fix (detected on the failing line only, so an ` as ` inside a description string does not misfire); a forgotten `return` gets the two valid plugin forms; a Node built-in call gets the redirect to its cordis service; a tool-name collision on re-mount gets the unmount-first-then-remount recipe. +Boundary errors are written around the mistakes models actually make (see [Consequences](#consequences) for how each was found), and the boundary normalizes rather than lectures wherever the input has exactly one meaning: schema `parameters` accept the JSON-Schema dialect models write by strong prior — the `{ type: 'object', properties, required: […] }` wrapper unwraps to the SchemaSpec DSL (the `required` array becoming per-property flags, at any nesting level), `type: 'integer'` maps to `number`, and `required: false` reads as optional — while genuinely meaningless input is rejected with the vocabulary enumerated (an unknown type lists the five valid ones; a non-boolean `required` names the rule). The remaining teaching errors: an unbalanced `});` closing gets the vm's offending source line plus a "code is a function body" reminder; TypeScript syntax gets the remove-annotations fix (detected on the failing line only, so an ` as ` inside a description string does not misfire); a forgotten `return` gets the two valid plugin forms; a Node built-in call gets the redirect to its cordis service; a tool-name collision on re-mount gets the unmount-first-then-remount recipe. ### The dynamic group and mount lifecycle @@ -79,6 +79,6 @@ The correctness investment therefore goes where it pays for every capability at The toolset is a deliberate opt-in with a fully-privileged `ctx`, so a deployment adopts it as consciously as a bash tool. Several facts follow that the tool descriptions warn the model about directly: a waterfall listener (e.g. `tools/pre-execute`) that returns without calling `next()` vetoes the chain, so a mounted listener can lobotomize the agent's own tool dispatch ([waterfall semantics](../../../cordis-primer.md#cordis-waterfall-semantics)); mount code runs inside a tool call of the current turn, so awaiting anything that resolves only after the turn deadlocks; `vmTimeoutMs` bounds synchronous evaluation only; and mounts do not survive session resume. -The instructive boundary errors were not guessed — they were written against a live self-design session in which a real model was asked to build itself coding tools. That session surfaced the failure modes now mitigated: the model closed a returned plugin object with `});` and got only a bare `Unexpected token ')'` it retried blind; it hit a false-positive "this is TypeScript" hint because a description string contained the word "as"; and, most costly, it guessed a bash run's `stdout` was a string and burned six steps building throwaway debug tools to discover it is `{ text, truncated }`. The fixes — source-line-plus-caret parse errors, line-scoped TypeScript detection, the type-shape closure in the API catalog, and the redirect traps — cut a second session from dozens of tool calls with repeated errors to a first-try success on every capability, including a model that hit a Node-`setTimeout` trap and self-corrected to `inject: ['timer']` in one step. +The instructive boundary errors were not guessed — they were written against live self-design sessions in which a real model was asked to build itself coding tools. Those sessions surfaced the failure modes now mitigated: the model closed a returned plugin object with `});` and got only a bare `Unexpected token ')'` it retried blind; it hit a false-positive "this is TypeScript" hint because a description string contained the word "as"; it guessed a bash run's `stdout` was a string and burned six steps building throwaway debug tools to discover it is `{ text, truncated }`; and it wrote tool schemas in the JSON-Schema dialect (`type: 'integer'`, `required: false`, then the full wrapper) three rejections in a row — the rejection text itself pushing it from a nearly-correct DSL attempt back to raw JSON Schema. The fixes — source-line-plus-caret parse errors, line-scoped TypeScript detection, the type-shape closure in the API catalog, the redirect traps, and schema-dialect normalization in place of rejection — cut later sessions from dozens of tool calls with repeated errors to a first-try success on every capability, including a model that hit a Node-`setTimeout` trap and self-corrected to `inject: ['timer']` in one step. Coverage is named per tier: package unit specs drive the three tools through a real `ToolRegistry` on a real fiber tree (the mount success/failure family, vm isolation, dual-realm `instanceof`, realm normalization against the real `isJsonValue`, the SchemaSpec and raw-registration rejections, the Node-API traps, the cross-mount provide/inject matrix, catalog-backed `api`/`events` rendering, config validation, presenters, quiescent unmount, and the HMR cascade), a `MockAdapter` loop test proves a tool mounted in one step is dispatchable in the next, and the example carries a keyless Loader smoke plus a with-key smoke that world-verifies a live model mounting a listener, building its own tool, and composing two mounts. No snapshot scenario is added: the toolset ships in no ACP-served app, so it changes no editor-facing transcript, and its presenters are unit-tested pure functions — adding it to the ACP example solely for a golden would rewrite the pinned request-header tool set of every recorded scenario. diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md index f0a3fab35d..91c2104a13 100644 --- a/docs/tool-catalog.md +++ b/docs/tool-catalog.md @@ -136,7 +136,7 @@ Source: [`packages/cordis/tool-cordis/src/index.ts`](../packages/cordis/tool-cor ### `cordis_mount` -Mount a NEW cordis plugin into the live runtime that is running THIS agent (self-modification). `code` runs as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — cannot declare inject, uses whatever services are on the parent context, and accessing a service without inject (e.g. ctx.bash) throws; use it only when you need no injected services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form for any plugin that needs bash, llm, sessions, etc. BEFORE calling a service from your code, read cordis_inspect what:"api" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:"events"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, async execute(args) { … } }))` to give yourself a new tool — it becomes callable on your NEXT step. A tool's `execute` MUST return an ARRAY of content blocks, e.g. `return [{ type: 'text', text: someString }]` — never a bare string. Mounts can COMPOSE: one plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically on unmount. Sandbox globals: `console` (tagged `[cordis:]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned on unmount) — cordis_inspect what:"api" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) The sandbox prevents accidental global pollution, not malice: `ctx` is the real, fully privileged runtime handle. +Mount a NEW cordis plugin into the live runtime that is running THIS agent (self-modification). `code` runs as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — cannot declare inject, uses whatever services are on the parent context, and accessing a service without inject (e.g. ctx.bash) throws; use it only when you need no injected services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form for any plugin that needs bash, llm, sessions, etc. BEFORE calling a service from your code, read cordis_inspect what:"api" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:"events"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, async execute(args) { … } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'boolean'|'object'|'array', required?: true, description?, enum?, items?, properties? }; a JSON-Schema-style { type: 'object', properties, required: […] } wrapper and type 'integer' are also accepted and normalized. A tool's `execute` MUST return an ARRAY of content blocks, e.g. `return [{ type: 'text', text: someString }]` — never a bare string. Mounts can COMPOSE: one plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically on unmount. Sandbox globals: `console` (tagged `[cordis:]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned on unmount) — cordis_inspect what:"api" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) The sandbox prevents accidental global pollution, not malice: `ctx` is the real, fully privileged runtime handle. ```json { diff --git a/packages/cordis/tool-cordis/src/guard.ts b/packages/cordis/tool-cordis/src/guard.ts index 09d804771f..998997a8f9 100644 --- a/packages/cordis/tool-cordis/src/guard.ts +++ b/packages/cordis/tool-cordis/src/guard.ts @@ -1,19 +1,27 @@ /** * The registration boundary between sandboxed mount code and the real runtime: - * SchemaSpec validation with teaching errors, the marker-guarded - * `harness.defineTool` / `harness.registerTool` pair, the guarded `ctx` proxy a - * mounted plugin receives, and the plugin-shape helpers the mount lifecycle - * narrows sandbox return values with. + * SchemaSpec normalization + validation with teaching errors, the + * marker-guarded `harness.defineTool` / `harness.registerTool` pair, the + * guarded `ctx` proxy a mounted plugin receives, and the plugin-shape helpers + * the mount lifecycle narrows sandbox return values with. * * Two realm facts drive the design. Objects built inside the vm carry the vm * realm's `Object.prototype`, and the session log's append-time plainness check * (`dsh-session`'s `isJsonValue`, a prototype-identity comparison) rejects * foreign-realm data — so every dynamic tool's `execute` return is JSON - * round-tripped into the host realm before it reaches the registry. And a - * malformed tool schema must fail at REGISTRATION, not when a later request - * assembles it — so dynamic `ctx.tools.register` calls accept only definitions - * produced by the sandbox's `harness.defineTool`, which asserts the SchemaSpec - * DSL up front. + * round-tripped into the host realm before it reaches the registry, and the + * schema itself is rebuilt as fresh host-realm objects. And a malformed tool + * schema must fail at REGISTRATION, not when a later request assembles it — so + * dynamic `ctx.tools.register` calls accept only definitions produced by the + * sandbox's `harness.defineTool`, which normalizes `parameters` up front. + * + * Normalize, don't lecture, where the input has exactly one meaning: models + * write the JSON-Schema dialect by strong prior (the `{ type: 'object', + * properties, required: […] }` wrapper, `type: 'integer'`, `required: false`), + * and each rejection costs a model turn — so those convert to the SchemaSpec + * DSL silently, and only genuinely meaningless input (an unknown type, a + * non-boolean `required`) is rejected, with the error enumerating the valid + * vocabulary. * * @module @deepseek-ai/dsh-tool-cordis/guard */ @@ -24,6 +32,7 @@ import type { ToolDefinition, ToolExecuteReturn } from '@deepseek-ai/dsh-tools' const DYNAMIC_TOOL = Symbol('tool-cordis.dynamic-tool') const SCHEMA_TYPES = new Set(['string', 'number', 'boolean', 'object', 'array']) +const VALID_TYPES = '\'string\' | \'number\' | \'boolean\' | \'object\' | \'array\'' type DynamicToolDefinition = ToolDefinition & { [DYNAMIC_TOOL]: true } type DynamicToolMarker = { [DYNAMIC_TOOL]?: unknown } @@ -32,47 +41,70 @@ function isPlainRecord(value: unknown): value is Record { return Object.prototype.toString.call(value) === '[object Object]' } -/** Assert a sandbox-provided `parameters` value is a SchemaSpec object, with a teaching error for the common JSON-Schema mistake. */ -function assertSchemaSpec(value: unknown): void { +/** + * Normalize a sandbox-provided `parameters` value into a fresh host-realm + * SchemaSpec. Accepts the DSL directly, or the JSON-Schema-style + * `{ type: 'object', properties, required: […] }` wrapper models write by + * prior — the wrapper unwraps and its `required` array becomes per-property + * flags (see the module doc). + */ +function normalizeSchemaSpec(value: unknown, path = 'parameters'): Record { if (!isPlainRecord(value)) { - throw new Error('harness.defineTool parameters must be a SchemaSpec object') + throw new Error(`harness.defineTool ${path} must be a SchemaSpec object`) } + let entries = value + const requiredNames = new Set() if (value.type === 'object' && isPlainRecord(value.properties)) { - throw new Error( - 'harness.defineTool parameters use the SchemaSpec DSL (NOT JSON Schema).\n' - + ' ✗ { type: \'object\', properties: { name: { type: \'string\' } }, required: [\'name\'] }\n' - + ' ✓ { name: { type: \'string\', required: true } }\n' - + 'Remove the outer { type: \'object\', properties, required } wrapper; ' - + 'each key IS a property directly on the parameters object.', - ) + if (Array.isArray(value.required)) { + for (const name of value.required) requiredNames.add(name) + } + entries = value.properties } - for (const [key, prop] of Object.entries(value)) { - assertSchemaProp(prop, `parameters.${key}`) + const spec: Record = {} + for (const [key, prop] of Object.entries(entries)) { + spec[key] = normalizeSchemaProp(prop, `${path}.${key}`, requiredNames.has(key)) } + return spec } -function assertSchemaProp(value: unknown, path: string): void { +/** Normalize one property: `integer` → `number`, `required: false` → absent, nested wrappers unwrapped recursively. */ +function normalizeSchemaProp(value: unknown, path: string, forceRequired = false): Record { if (!isPlainRecord(value)) { throw new Error(`harness.defineTool ${path} must be a SchemaSpec property object`) } - if (!SCHEMA_TYPES.has(value.type)) { - throw new Error(`harness.defineTool ${path} must declare a valid type`) + const type = value.type === 'integer' ? 'number' : value.type + if (!SCHEMA_TYPES.has(type)) { + throw new Error(`harness.defineTool ${path} must declare a valid type: ${VALID_TYPES} (got ${JSON.stringify(value.type)})`) } - if (value.required !== undefined && value.required !== true) { - throw new Error(`harness.defineTool ${path}.required must be true when present`) + // On an object property a JSON-Schema-style `required` ARRAY names required + // children (handled by the nested unwrap below); everywhere else `required` + // must be a boolean, and `false` simply reads as optional. + const nestedRequiredArray = type === 'object' && Array.isArray(value.required) + if (value.required !== undefined && typeof value.required !== 'boolean' && !nestedRequiredArray) { + throw new Error(`harness.defineTool ${path}.required must be a boolean when present`) } + const prop: Record = { type } + if (forceRequired || value.required === true) prop.required = true + if (typeof value.description === 'string') prop.description = value.description + if (Array.isArray(value.enum)) prop.enum = [...value.enum as unknown[]] + if (value.default !== undefined) prop.default = value.default if (value.properties !== undefined) { - if (value.type !== 'object') { + if (type !== 'object') { throw new Error(`harness.defineTool ${path}.properties is only valid for type "object"`) } - assertSchemaSpec(value.properties) + // Re-wrap so the nested unwrap applies a nested `required` array too. + prop.properties = normalizeSchemaSpec( + { type: 'object', properties: value.properties, required: value.required }, + `${path}.properties`, + ) } if (value.items !== undefined) { - if (value.type !== 'array') { + if (type !== 'array') { throw new Error(`harness.defineTool ${path}.items is only valid for type "array"`) } - assertSchemaProp(value.items, `${path}.items`) + prop.items = normalizeSchemaProp(value.items, `${path}.items`) } + return prop } function markDynamicTool(tool: ToolDefinition): DynamicToolDefinition { @@ -87,17 +119,19 @@ function assertDynamicTool(tool: unknown): asserts tool is DynamicToolDefinition } /** - * The `harness.defineTool` handed into the sandbox: the real DSL, with the + * The `harness.defineTool` handed into the sandbox: the real DSL, with + * `parameters` normalized into a fresh host-realm SchemaSpec (JSON-Schema + * wrapper unwrapped, `integer` mapped, `required: false` dropped) and the * tool's `execute` return normalized into the host realm via a JSON round-trip * (see the module doc). The round-trip also projects the return onto exactly * what the log would durably store, so a non-JSON-serializable return surfaces * as that one call's error instead of poisoning the turn. - * @param options - the standard `defineTool` options, with `parameters` asserted against the SchemaSpec DSL before the DSL sees them. + * @param options - the standard `defineTool` options; `parameters` may be the SchemaSpec DSL or a JSON-Schema-style wrapper. * @returns the marker-tagged definition `harness.registerTool` (and the guarded `ctx.tools.register`) accepts. */ export function sandboxDefineTool(options: Parameters[0]): ToolDefinition { - assertSchemaSpec((options as { parameters?: unknown }).parameters) - const tool = defineTool(options) + const parameters = normalizeSchemaSpec((options as { parameters?: unknown }).parameters) + const tool = defineTool({ ...options, parameters } as Parameters[0]) const execute = tool.execute.bind(tool) return markDynamicTool({ ...tool, diff --git a/packages/cordis/tool-cordis/src/index.ts b/packages/cordis/tool-cordis/src/index.ts index de028b384a..7dff9b993d 100644 --- a/packages/cordis/tool-cordis/src/index.ts +++ b/packages/cordis/tool-cordis/src/index.ts @@ -143,7 +143,10 @@ export function apply(ctx: Context, config: Config): void { + 'events (see cordis_inspect what:"events"), or call ' + '`harness.registerTool(ctx, harness.defineTool({ name, description, parameters: ' + '{ text: { type: \'string\', required: true } }, async execute(args) { … } }))` ' - + 'to give yourself a new tool — it becomes callable on your NEXT step. A ' + + 'to give yourself a new tool — it becomes callable on your NEXT step. ' + + 'Tool parameters: each key IS a property — { type: \'string\'|\'number\'|\'boolean\'|\'object\'|\'array\', ' + + 'required?: true, description?, enum?, items?, properties? }; a JSON-Schema-style ' + + '{ type: \'object\', properties, required: […] } wrapper and type \'integer\' are also accepted and normalized. A ' + 'tool\'s `execute` MUST return an ARRAY of content blocks, e.g. `return ' + '[{ type: \'text\', text: someString }]` — never a bare string. ' + 'Mounts can COMPOSE: one plugin may `ctx.provide(\'name\', value)` a service and ' diff --git a/packages/cordis/tool-cordis/tests/mount.spec.ts b/packages/cordis/tool-cordis/tests/mount.spec.ts index 03038f818c..543b38307f 100644 --- a/packages/cordis/tool-cordis/tests/mount.spec.ts +++ b/packages/cordis/tool-cordis/tests/mount.spec.ts @@ -60,39 +60,85 @@ describe('cordis_mount', () => { expect(isJsonValue({ content: reversed.content, isError: reversed.isError })).toBe(true) }) - it('rejects JSON Schema passed to harness.defineTool with the SchemaSpec teaching error', async () => { + it('accepts a JSON-Schema-style parameters wrapper and normalizes it to the DSL', async () => { + // The dialect models write by strong prior: the { type:'object', + // properties, required: […] } wrapper, `type: 'integer'`, and + // `required: false`. All of it has exactly one meaning — normalize instead + // of burning a model turn on a lecture. const ctx = await setup() const result = await call(ctx, 'cordis_mount', { code: ` return { - name: 'bad-json-schema-tool', + name: 'json-schema-tool', inject: ['tools'], apply(ctx) { harness.registerTool(ctx, harness.defineTool({ - name: 'bad_json_schema_tool', - description: 'bad', + name: 'json_schema_tool', + description: 'written in the JSON-Schema dialect', parameters: { type: 'object', - properties: { text: { type: 'string' } }, + properties: { + text: { type: 'string', description: 'the text' }, + count: { type: 'integer', default: 1 }, + mode: { type: 'string', enum: ['fast', 'slow'] }, + extra: { type: 'string', required: false }, + }, required: ['text'], }, - async execute() { return [{ type: 'text', text: 'bad' }] }, + async execute(args) { return [{ type: 'text', text: args.text + ':' + (args.count ?? 0) }] }, })) }, } `, }) + expect(result.isError).toBe(false) - expect(result.isError).toBe(true) - expect(text(result)).toContain('harness.defineTool parameters use the SchemaSpec DSL') - expect(ctx.tools.get('bad_json_schema_tool')).toBeUndefined() + // The registered schema is canonical JSON Schema derived from the DSL: + // the required array survived, integer became number, extra is optional. + const schema = ctx.tools.schemas().find(s => s.name === 'json_schema_tool')! + const parameters = schema.parameters as { properties: Record; required?: string[] } + expect(parameters.required).toEqual(['text']) + expect(parameters.properties.count!.type).toBe('number') + expect(parameters.properties.mode!.enum).toEqual(['fast', 'slow']) + // Arg validation enforces the normalized spec: text required, extra not. + expect((await call(ctx, 'json_schema_tool', { count: 2 })).isError).toBe(true) + expect(text(await call(ctx, 'json_schema_tool', { text: 'ok', count: 2 }))).toBe('ok:2') + }) + + it('normalizes a nested object property carrying a JSON-Schema required array', async () => { + // On an object PROPERTY, a JSON-Schema-style `required` array names the + // required children — the nested unwrap converts it just like the top level. + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'nested-json-schema', + inject: ['tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'nested_json_schema_tool', + description: 'nested dialect', + parameters: { + cfg: { type: 'object', properties: { label: { type: 'string' } }, required: ['label'] }, + }, + async execute(args) { return [{ type: 'text', text: args.cfg.label }] }, + })) + }, + } + `, + }) + expect(result.isError).toBe(false) + const schema = ctx.tools.schemas().find(s => s.name === 'nested_json_schema_tool')! + const cfg = (schema.parameters as { properties: { cfg: { required?: string[] } } }).properties.cfg + expect(cfg.required).toEqual(['label']) + expect(text(await call(ctx, 'nested_json_schema_tool', { cfg: { label: 'hi' } }))).toBe('hi') }) it.each([ ['parameters: 42', 'must be a SchemaSpec object'], ['parameters: { text: 42 }', 'parameters.text must be a SchemaSpec property object'], - ['parameters: { text: { type: \'str\' } }', 'parameters.text must declare a valid type'], - ['parameters: { text: { type: \'string\', required: false } }', 'parameters.text.required must be true when present'], + ['parameters: { text: { type: \'str\' } }', 'parameters.text must declare a valid type: \'string\' | \'number\' | \'boolean\' | \'object\' | \'array\' (got "str")'], + ['parameters: { text: { type: \'string\', required: \'yes\' } }', 'parameters.text.required must be a boolean when present'], ['parameters: { text: { type: \'string\', properties: {} } }', 'parameters.text.properties is only valid for type "object"'], ['parameters: { text: { type: \'string\', items: { type: \'string\' } } }', 'parameters.text.items is only valid for type "array"'], ])('rejects a malformed SchemaSpec (%s) with a teaching error', async (parameters, message) => { From ea66641b84c170d0b133ee66ab6c7cc955b12cf8 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Wed, 8 Jul 2026 21:01:49 +0800 Subject: [PATCH 124/232] feat(tool-cordis): flatten the inspect plugins section to a capability list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The tree SHAPE was the wrong surface for the model: what it needs from cordis_inspect is what services, plugins, and capabilities are loaded, not the fiber hierarchy. The plugins section is now a flat name + lifecycle-state list from ctx.registry (deterministically sorted, one line per instance); the ASCII tree renderer, the parent→child rebuild, and the dyn-id tree annotation are deleted — dynamic mounts keep their own richer dynamic section (id, state, provides, waits). Net -49 lines; RFC and READMEs state the flat-list contract. --- ...6-07-08-self-referential-cordis-toolset.md | 8 +-- docs/tool-catalog.md | 2 +- packages/cordis/README.md | 2 +- packages/cordis/tool-cordis/README.md | 2 +- .../cordis/tool-cordis/src/fiber-state.ts | 2 +- packages/cordis/tool-cordis/src/index.ts | 25 +++----- packages/cordis/tool-cordis/src/inspect.ts | 60 ++++--------------- .../cordis/tool-cordis/tests/inspect.spec.ts | 42 ++++++------- 8 files changed, 47 insertions(+), 96 deletions(-) diff --git a/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md b/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md index 14e05b0afd..26daf4a844 100644 --- a/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md +++ b/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md @@ -22,11 +22,11 @@ The trust stance, stated once and threaded through the rest: the `node:vm` sandb | `cordis_mount` | Evaluates `code` (the body of an async JavaScript function) in a `node:vm` sandbox; the code must `return` a cordis plugin, which is mounted as a child of the `cordis-dynamic` group fiber and tracked under a fresh id (`dyn-1`, `dyn-2`, …). | | `cordis_unmount` | Disposes one dynamic mount by id and returns only after disposal reaches quiescence — every registration the plugin made is unwound, not merely requested to stop. | -`cordis_inspect` sections: `services` (every provided ctx service and the owning fiber, non-active owners flagged), `plugins` (the whole plugin fiber tree rebuilt from `ctx.registry`, ASCII, dynamic mounts annotated with their ids), `tools` (what the model can call), `dynamic` (the mount table: id, name, state, provided services, awaited services), `api` (live service signatures + the type shapes they reference, from the generated catalog), and `events` (harness events with dispatch mode and signature). The model-facing tool descriptions carry the operational rules the model needs at call time; [the generated tool catalog](../../../tool-catalog.md) is their exhaustive rendering. +`cordis_inspect` sections: `services` (every provided ctx service and the owning fiber, non-active owners flagged), `plugins` (a flat list of every loaded plugin with its lifecycle state, from `ctx.registry` — what capabilities are loaded, deliberately not the tree shape), `tools` (what the model can call), `dynamic` (the mount table: id, name, state, provided services, awaited services), `api` (live service signatures + the type shapes they reference, from the generated catalog), and `events` (harness events with dispatch mode and signature). The model-facing tool descriptions carry the operational rules the model needs at call time; [the generated tool catalog](../../../tool-catalog.md) is their exhaustive rendering. ### Sandbox semantics -Mount code runs via `vm.createContext` + `runInContext`, wrapped as the body of an async function under a per-mount filename (`cordis-mount-.js`). The vm gives the code a fresh realm: writes to `globalThis` stay inside the sandbox, and no Node API is provided — capability access is routed through the cordis services (`ctx.fs` for files, `ctx.web` for HTTP, `ctx.bash` for processes, the `ctx.timer` helpers for timing), never Node built-ins, so everything a mounted plugin does stays inspectable through the fiber tree and disposable with it. The `vmTimeoutMs` config bounds only the synchronous portion of evaluation; an async body escapes the bound (acceptable under the trust stance above). +Mount code runs via `vm.createContext` + `runInContext`, wrapped as the body of an async function under a per-mount filename (`cordis-mount-.js`). The vm gives the code a fresh realm: writes to `globalThis` stay inside the sandbox, and no Node API is provided — capability access is routed through the cordis services (`ctx.fs` for files, `ctx.web` for HTTP, `ctx.bash` for processes, the `ctx.timer` helpers for timing), never Node built-ins, so everything a mounted plugin does stays inspectable through `cordis_inspect` and disposable with its fiber. The `vmTimeoutMs` config bounds only the synchronous portion of evaluation; an async body escapes the bound (acceptable under the trust stance above). Sandbox globals are deliberately small: a tagged write-through `console` (`[cordis:] …` on the host stdout/stderr, so a listener that fires long after the mount call still lands somewhere the user sees), the `harness.defineTool` / `harness.registerTool` registration pair, the encoding primitives fresh vm contexts lack (`btoa`/`atob` as host closures over `Buffer` — a sanctioned exception, `Buffer` itself is never exposed — plus `TextEncoder`/`TextDecoder`), and callable traps over the withheld Node APIs (`require`, `setTimeout`/`setInterval`/`setImmediate`/`clearTimeout`/`clearInterval`, `fetch`) that throw a redirect naming the cordis alternative. Only function-shaped globals are trapped; `process` and `Buffer` stay `undefined` so a `typeof` feature probe stays inert rather than detonating a throwing accessor. @@ -36,7 +36,7 @@ Boundary errors are written around the mistakes models actually make (see [Conse ### The dynamic group and mount lifecycle -Every dynamic mount is a child of a single `cordis-dynamic` group fiber, itself a child of the `tool-cordis` plugin's fiber. The group exists so the mounts form one subtree: they read as a unit in the inspect tree, and disposing `tool-cordis` (HMR reload, config unload) cascades over every mount through the ordinary parent→child fiber lifecycle — no bespoke cleanup. Mounting settles before it reports: the returned fiber is `await()`ed, and a startup error (a throwing `apply`, a duplicate tool name, a duplicate service) disposes the fiber and surfaces as the tool error, so a failed mount never lingers. A settled fiber that is not active is a legal pending mount — cordis semantics for unsatisfied `inject` — kept mounted and reported with what it waits for. Everything the plugin registers is an effect on its fiber, so `cordis_unmount` is nothing but an awaited `fiber.dispose()`. +Every dynamic mount is a child of a single `cordis-dynamic` group fiber, itself a child of the `tool-cordis` plugin's fiber. The group exists so the mounts form one subtree: they are disposed as a unit, and disposing `tool-cordis` (HMR reload, config unload) cascades over every mount through the ordinary parent→child fiber lifecycle — no bespoke cleanup. Mounting settles before it reports: the returned fiber is `await()`ed, and a startup error (a throwing `apply`, a duplicate tool name, a duplicate service) disposes the fiber and surfaces as the tool error, so a failed mount never lingers. A settled fiber that is not active is a legal pending mount — cordis semantics for unsatisfied `inject` — kept mounted and reported with what it waits for. Everything the plugin registers is an effect on its fiber, so `cordis_unmount` is nothing but an awaited `fiber.dispose()`. ### Cross-mount composition via provide/inject @@ -64,7 +64,7 @@ Model-visible ⟺ logged holds with no new session event type: a mount or unmoun | The code field | An `execute` body is still model-written JS in a vm; the realm and service-call correctness problems are unchanged | One sandbox, one normalization path, one guarded registration | | Capability coverage | Tools only; listeners, services, `inject` relations each need another structured tool — a surface that grows without bound | One vocabulary (a cordis plugin) covers every effect, present and future | | Cross-mount composition | Not expressible in a tool-registration payload | Native `provide`/`inject`, ordinary cordis semantics | -| Inspectability | Registers something the plugin tree cannot show as a plugin | What the model mounts is exactly what `cordis_inspect` renders | +| Inspectability | Registers something the plugin list cannot show as a plugin | What the model mounts is exactly what `cordis_inspect` renders | | Model ergonomics | Wins for the single most common case (no plugin boilerplate) | Mitigated by the canonical recipe in the mount description plus boundary errors that teach the fix | The correctness investment therefore goes where it pays for every capability at once: the generated API catalog surfaced through `cordis_inspect`, and sandbox-boundary validation whose error messages teach the correct call. A structured registration tool remains addable later as sugar that synthesizes mount code; nothing here forecloses it. diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md index 91c2104a13..ec1546592c 100644 --- a/docs/tool-catalog.md +++ b/docs/tool-catalog.md @@ -110,7 +110,7 @@ The bash/bash_output/bash_kill tools are model-facing consumers of the bash exec ### `cordis_inspect` -Inspect the live cordis runtime that is running THIS agent. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (the whole plugin fiber tree with lifecycle states, as an ASCII tree — dynamic mounts appear under the `cordis-dynamic` group with their ids), `tools` (the model-facing tools currently registered, i.e. what you can call), `dynamic` (plugins you mounted via cordis_mount: id, name, state, provided services, awaited services), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Omit `what` to get all six sections. +Inspect the live cordis runtime that is running THIS agent. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (a flat list of the loaded plugins with their lifecycle states), `tools` (the model-facing tools currently registered, i.e. what you can call), `dynamic` (plugins you mounted via cordis_mount: id, name, state, provided services, awaited services), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Omit `what` to get all six sections. ```json { diff --git a/packages/cordis/README.md b/packages/cordis/README.md index 2eb33006e5..70c7e41ce0 100644 --- a/packages/cordis/README.md +++ b/packages/cordis/README.md @@ -1,6 +1,6 @@ # packages/cordis — the self-referential runtime toolset -Model-facing tools over the live cordis runtime the agent itself runs inside: inspect the plugin tree and service surface, mount model-written plugins, and dispose them again. Design home: [the toolset RFC](../../docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md). +Model-facing tools over the live cordis runtime the agent itself runs inside: inspect the loaded plugins and service surface, mount model-written plugins, and dispose them again. Design home: [the toolset RFC](../../docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md). | Package | Role | ctx key | |---|---|---| diff --git a/packages/cordis/tool-cordis/README.md b/packages/cordis/tool-cordis/README.md index 71b79fecad..b369a7209b 100644 --- a/packages/cordis/tool-cordis/README.md +++ b/packages/cordis/tool-cordis/README.md @@ -4,7 +4,7 @@ The self-referential cordis toolset: three model-facing tools over the live runt ## What it does -- `cordis_inspect` — read-only report over the runtime: services, the plugin fiber tree (ASCII), registered tools, the dynamic-mount table, and the catalog-backed `api` / `events` references. +- `cordis_inspect` — read-only report over the runtime: services, the loaded-plugin list, registered tools, the dynamic-mount table, and the catalog-backed `api` / `events` references. - `cordis_mount` — evaluates model-written JavaScript (the body of an async function) in a `node:vm` sandbox; the code must `return` a cordis plugin, which is mounted under the `cordis-dynamic` group fiber and tracked as `dyn-`. - `cordis_unmount` — disposes one mount by id, returning only after quiescence. diff --git a/packages/cordis/tool-cordis/src/fiber-state.ts b/packages/cordis/tool-cordis/src/fiber-state.ts index e46700c387..2b1ee166b7 100644 --- a/packages/cordis/tool-cordis/src/fiber-state.ts +++ b/packages/cordis/tool-cordis/src/fiber-state.ts @@ -1,7 +1,7 @@ /** * Runtime mirror of the cordis `FiberState` const enum plus human-readable * labels, shared by the mount lifecycle (state reporting) and the inspect - * renderers (tree and mount-table labels). + * renderers (plugin-list and mount-table labels). * * Cordis exposes `FiberState` as a `const enum`: there is no runtime object for * Node's type-stripping runner to import, so the members are mirrored here as diff --git a/packages/cordis/tool-cordis/src/index.ts b/packages/cordis/tool-cordis/src/index.ts index 7dff9b993d..875637bfc4 100644 --- a/packages/cordis/tool-cordis/src/index.ts +++ b/packages/cordis/tool-cordis/src/index.ts @@ -2,8 +2,8 @@ * The self-referential cordis toolset: three model-facing tools that let the * agent inspect and MODIFY the live cordis runtime it is running inside. * - * - `cordis_inspect` — read-only: provided services, the plugin fiber tree - * (rendered as an ASCII tree), registered tools, the dynamic mounts, and the + * - `cordis_inspect` — read-only: provided services, the flat plugin list + * with lifecycle states, registered tools, the dynamic mounts, and the * catalog-backed `api` / `events` references. * - `cordis_mount` — evaluate model-written code in a `node:vm` sandbox; the * code returns a cordis plugin, which is mounted as a child of a dedicated @@ -14,8 +14,8 @@ * `harness.registerTool`, services via `ctx.provide`) is an effect on the * dynamic fiber, so unmounting — or disposing this plugin itself (HMR) — cleans * it all up through the ordinary cordis lifecycle. The group fiber exists - * exactly so the dynamic mounts form ONE subtree: visible as a unit in the - * inspect tree and disposed as a unit with this plugin. Design home: + * exactly so the dynamic mounts form ONE subtree, disposed as a unit with + * this plugin. Design home: * docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md. * * The vm sandbox guards against ACCIDENTAL global pollution only — it is not a @@ -31,12 +31,12 @@ * @module @deepseek-ai/dsh-tool-cordis */ -import type { Context, Fiber } from 'cordis' +import type { Context } from 'cordis' import z from 'schemastery' import { defineTool } from '@deepseek-ai/dsh-tools' import { STATE_LABELS } from './fiber-state.ts' import { isPlugin, pluginName } from './guard.ts' -import { describeApi, describeDynamic, describeEvents, describePluginTree, describeServices, describeTools } from './inspect.ts' +import { describeApi, describeDynamic, describeEvents, describePlugins, describeServices, describeTools } from './inspect.ts' import { missingServices, mountDynamic } from './mount.ts' import type { DynamicMount } from './mount.ts' import { presentInspectCall, presentMountCall, presentUnmountCall } from './present.ts' @@ -79,21 +79,12 @@ export function apply(ctx: Context, config: Config): void { const mounts = new Map() let nextId = 1 - /** The dynamic-mount id for a fiber, when that fiber is a tracked mount. */ - function mountIdOf(fiber: Fiber): string | undefined { - for (const [id, mount] of mounts) { - if (mount.fiber === fiber) return id - } - return undefined - } - ctx.tools.register(defineTool({ name: 'cordis_inspect', description: 'Inspect the live cordis runtime that is running THIS agent. Read-only. ' + 'Sections: `services` (every provided ctx service and the plugin fiber that owns it), ' - + '`plugins` (the whole plugin fiber tree with lifecycle states, as an ASCII tree — ' - + 'dynamic mounts appear under the `cordis-dynamic` group with their ids), ' + + '`plugins` (a flat list of the loaded plugins with their lifecycle states), ' + '`tools` (the model-facing tools currently registered, i.e. what you can call), ' + '`dynamic` (plugins you mounted via cordis_mount: id, name, state, provided services, awaited services), ' + '`api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), ' @@ -109,7 +100,7 @@ export function apply(ctx: Context, config: Config): void { execute(args): Promise<{ type: 'text'; text: string }[]> { const sections: [heading: string, body: () => string[]][] = [ ['services', () => describeServices(ctx)], - ['plugins', () => describePluginTree(ctx, mountIdOf)], + ['plugins', () => describePlugins(ctx)], ['tools', () => describeTools(ctx)], ['dynamic', () => describeDynamic(ctx, mounts)], ['api', () => describeApi(ctx)], diff --git a/packages/cordis/tool-cordis/src/inspect.ts b/packages/cordis/tool-cordis/src/inspect.ts index dfcc9a0c6b..5b44ed7ca5 100644 --- a/packages/cordis/tool-cordis/src/inspect.ts +++ b/packages/cordis/tool-cordis/src/inspect.ts @@ -1,6 +1,6 @@ /** * Read-only renderers over the live runtime for `cordis_inspect`: the service - * list, the plugin fiber tree (ASCII), the registered tools, the dynamic-mount + * list, the flat plugin list, the registered tools, the dynamic-mount * table (with per-mount provides/waits), and the catalog-backed `api` / * `events` sections. Every renderer is a pure function of the runtime handles * it receives — no session state, no clock — so inspect output is exactly the @@ -57,56 +57,22 @@ export function describeServices(ctx: Context): string[] { return lines.length > 0 ? lines : ['(no services provided)'] } -/** The tree node shape {@link renderTree} draws: one line per fiber, children indented. */ -interface TreeNode { - label: string - children: TreeNode[] -} - -/** Render a node list as an ASCII tree (`├─`/`└─` box drawing). */ -function renderTree(nodes: TreeNode[], prefix = ''): string[] { - return nodes.flatMap((node, index) => { - const last = index === nodes.length - 1 - const line = `${prefix}${last ? '└─' : '├─'} ${node.label}` - const childPrefix = `${prefix}${last ? ' ' : '│ '}` - return [line, ...renderTree(node.children, childPrefix)] - }) -} - /** - * The `plugins` section: every fiber the registry knows, rebuilt into the - * parent→child tree from each fiber's mounting context and rendered as an - * ASCII tree with lifecycle states. Fibers whose parent fiber is outside the - * registry (i.e. mounted on the root context) become roots. - * @param ctx - the runtime whose registry is walked. - * @param mountIdOf - resolves a fiber to its dynamic-mount id, so mounts render as `dyn-: name`. - * @returns the tree lines, starting at the synthetic `root` line. + * The `plugins` section: a flat list of every fiber the registry knows, one + * line per fiber with its lifecycle state, sorted by plugin name (a plugin + * mounted more than once repeats — one line per instance). Dynamic mounts are + * listed like any other plugin; their ids live in the `dynamic` section. + * @param ctx - the runtime whose registry is enumerated. + * @returns one line per loaded plugin fiber. */ -export function describePluginTree(ctx: Context, mountIdOf: (fiber: Fiber) => string | undefined): string[] { - const fibers = new Set() +export function describePlugins(ctx: Context): string[] { + const fibers: Fiber[] = [] for (const runtime of ctx.registry.values()) { - for (const fiber of runtime.fibers) fibers.add(fiber) + for (const fiber of runtime.fibers) fibers.push(fiber) } - const childrenOf = new Map() - const roots: Fiber[] = [] - for (const fiber of fibers) { - const parent = fiber.parent.fiber - if (fibers.has(parent)) { - const siblings = childrenOf.get(parent) ?? [] - siblings.push(fiber) - childrenOf.set(parent, siblings) - } else { - roots.push(fiber) - } - } - const byUid = (a: Fiber, b: Fiber): number => (a.uid ?? Infinity) - (b.uid ?? Infinity) - const toNode = (fiber: Fiber): TreeNode => { - const id = mountIdOf(fiber) - const label = `${id ? `${id}: ` : ''}${fiber.name} [${STATE_LABELS[fiber.state]}]` - const children = (childrenOf.get(fiber) ?? []).sort(byUid).map(toNode) - return { label, children } - } - return ['root', ...renderTree(roots.sort(byUid).map(toNode))] + return fibers + .sort((a, b) => a.name.localeCompare(b.name)) + .map(fiber => `- ${fiber.name} [${STATE_LABELS[fiber.state]}]`) } /** diff --git a/packages/cordis/tool-cordis/tests/inspect.spec.ts b/packages/cordis/tool-cordis/tests/inspect.spec.ts index c45d3b29a8..1a8c39467a 100644 --- a/packages/cordis/tool-cordis/tests/inspect.spec.ts +++ b/packages/cordis/tool-cordis/tests/inspect.spec.ts @@ -1,13 +1,13 @@ import { describe, expect, it } from 'vitest' import type { Context, Fiber } from 'cordis' import { FiberState } from '../src/fiber-state.ts' -import { describeApi, describeEvents, describePluginTree, describeServices } from '../src/inspect.ts' +import { describeApi, describeEvents, describePlugins, describeServices } from '../src/inspect.ts' import { call, LISTENER_CODE, setup, text } from './helpers.ts' /** * The `cordis_inspect` sections: rendered against the real runtime through the * tool, plus direct renderer calls for the states a minimal harness cannot - * reach (empty service store, uid-less fibers, a fully-live catalog). + * reach (empty service store, same-named sibling fibers, a fully-live catalog). */ describe('cordis_inspect', () => { @@ -19,11 +19,12 @@ describe('cordis_inspect', () => { for (const heading of ['services', 'plugins', 'tools', 'dynamic', 'api', 'events']) { expect(report).toContain(`## ${heading}`) } - // The services section sees the real providers; the tree shows the dynamic - // group under this plugin; the tools section lists the cordis tools. + // The services section sees the real providers; the plugins list shows + // this plugin and its dynamic group flat; the tools section lists the + // cordis tools. expect(report).toContain('- tools (provided by ToolRegistry)') - expect(report).toMatch(/tool-cordis \[active\]/) - expect(report).toMatch(/cordis-dynamic \[active\]/) + expect(report).toContain('- tool-cordis [active]') + expect(report).toContain('- cordis-dynamic [active]') expect(report).toContain('- cordis_mount') expect(report).toContain('(no dynamic plugins mounted)') }) @@ -37,12 +38,12 @@ describe('cordis_inspect', () => { expect(report).not.toContain('## plugins') }) - it('shows a mount in the dynamic section and as an annotated child of the group in the tree', async () => { + it('shows a mount in the dynamic section and in the flat plugins list', async () => { const ctx = await setup() await call(ctx, 'cordis_mount', { code: LISTENER_CODE }) const report = text(await call(ctx, 'cordis_inspect', {})) expect(report).toContain('- dyn-1: change-logger [active]') - expect(report).toMatch(/dyn-1: change-logger \[active\]/) + expect(report).toContain('- change-logger [active]') }) it('renders the api section from the generated catalog intersected with the LIVE runtime', async () => { @@ -87,22 +88,15 @@ describe('inspect renderers (direct)', () => { expect(describeServices(ctx)).toEqual(['- thing (provided by half-loaded, pending)']) }) - it('describePluginTree sorts uid-less fibers last and renders sibling branches', () => { - // The parent fiber is OUTSIDE the registry set, so all three are roots. - const rootFiber = { uid: 0, name: 'root' } as unknown as Fiber - const fiber = (uid: number | null, name: string): Fiber => - ({ uid, name, state: FiberState.ACTIVE, parent: { fiber: rootFiber } }) as unknown as Fiber - const a = fiber(2, 'beta') - const b = fiber(1, 'alpha') - const c = fiber(null, 'rootless') - const d = fiber(null, 'rootless-too') - const ctx = { registry: { values: () => [{ fibers: [a, b, c, d] }] } } as unknown as Context - expect(describePluginTree(ctx, () => undefined)).toEqual([ - 'root', - '├─ alpha [active]', - '├─ beta [active]', - '├─ rootless [active]', - '└─ rootless-too [active]', + it('describePlugins lists every fiber flat, sorted by name, one line per instance', () => { + const fiber = (name: string): Fiber => ({ name, state: FiberState.ACTIVE }) as unknown as Fiber + const ctx = { + registry: { values: () => [{ fibers: [fiber('beta'), fiber('alpha')] }, { fibers: [fiber('alpha')] }] }, + } as unknown as Context + expect(describePlugins(ctx)).toEqual([ + '- alpha [active]', + '- alpha [active]', + '- beta [active]', ]) }) From aed752a75da17e0b89263cbbb5c8b362d12785a0 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Wed, 8 Jul 2026 21:30:17 +0800 Subject: [PATCH 125/232] fix: update doc budget --- scripts/doc-budgets.manifest.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/doc-budgets.manifest.json b/scripts/doc-budgets.manifest.json index 8cadde12e9..49535f0efb 100644 --- a/scripts/doc-budgets.manifest.json +++ b/scripts/doc-budgets.manifest.json @@ -7,5 +7,5 @@ "docs/testing.md": 800, "examples/AGENTS.md": 653, "packages/AGENTS.md": 450, - "packages/README.md": 610 + "packages/README.md": 660 } From 1b1ba96d4f608d7ea3bd9ea74d5b5ea1c169b14b Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 01:37:40 +0800 Subject: [PATCH 126/232] =?UTF-8?q?fix(tool-cordis):=20replace=20the=20pas?= =?UTF-8?q?s-through=20ctx=20proxy=20with=20a=20whitelist=20fa=C3=A7ade?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Review finding (#220): the guarded proxy only special-cased ctx.tools, so mount code could reach an UNGUARDED context through ctx.root, ctx.extend(), or a service instance's .ctx, then ctx.root.tools.register({…}) to bypass the marker check and host-realm normalization — a raw vm-realm result would later error a real agent turn at the session-log plainness check. The sandbox ctx is now a whitelist façade, not a pass-through proxy: it exposes only what a mount needs — tools.register (marker-guarded), on/once, provide, the timer helpers, and injected services resolved through a guarded get — and denies every framework-plumbing member (root, parent, fiber, reflect, registry, extend, isolate, intercept, plugin, set, mixin, …) with a teaching error. Injected services are wrapped so a method returning a Context is rejected on the way back (the .ctx escape), closing the one indirect leak. There is no context-valued member left to reach; cross-mount provide/inject is untouched (the plugin's own inject and the fiber's pending/active gating are unchanged). ctx.plugin (child plugins) and ctx.set are denied by design; ctx.effect is deferred (FIXME). Adds tests/sandbox-context.spec.ts covering the escape class (root/extend/fiber/ plugin/set/… denied, the classic root.tools.register bypass, the .ctx escape, read-only writes) plus the async-service and symbol/in-operator paths for 100% coverage. RFC/README/tool-catalog/config-catalog updated; api-catalog.ts regenerated (also picks up the codeRuntime service that entered on the master merge and was left stale). --- docs/config-catalog.md | 2 +- ...6-07-08-self-referential-cordis-toolset.md | 8 +- docs/tool-catalog.md | 2 +- packages/cordis/tool-cordis/README.md | 2 +- .../cordis/tool-cordis/src/api-catalog.ts | 31 ++++ packages/cordis/tool-cordis/src/guard.ts | 169 ++++++++++++++---- packages/cordis/tool-cordis/src/index.ts | 19 +- .../cordis/tool-cordis/tests/mount.spec.ts | 4 +- .../tool-cordis/tests/sandbox-context.spec.ts | 156 ++++++++++++++++ 9 files changed, 348 insertions(+), 45 deletions(-) create mode 100644 packages/cordis/tool-cordis/tests/sandbox-context.spec.ts diff --git a/docs/config-catalog.md b/docs/config-catalog.md index d466bff4c0..2e6be3a1ea 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -686,7 +686,7 @@ export interface Config { } ``` -Source: [`packages/cordis/tool-cordis/src/index.ts:49`](../packages/cordis/tool-cordis/src/index.ts) +Source: [`packages/cordis/tool-cordis/src/index.ts:53`](../packages/cordis/tool-cordis/src/index.ts) ## `@deepseek-ai/dsh-tool-fs` diff --git a/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md b/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md index 26daf4a844..2ba398301b 100644 --- a/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md +++ b/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md @@ -12,7 +12,7 @@ First, model-written registration must be validated where it happens: a malforme The toolset ships as [`@deepseek-ai/dsh-tool-cordis`](../../../../packages/cordis/tool-cordis/README.md) — a new top-level `packages/cordis/` group — and is demoed by [`examples/cordis-agent`](../../../../examples/cordis-agent/README.md). It gives the model three tools over the live cordis runtime it is running inside: inspect it, mount model-written plugins into it, dispose them again. -The trust stance, stated once and threaded through the rest: the `node:vm` sandbox isolates the global context only — it prevents accidental global pollution, not malice. The `ctx` handed to a mounted plugin's `apply` is the real, fully privileged runtime handle; handing the model that handle is the point of the toolset. A deployment loads this plugin exactly as deliberately as it grants a bash tool — an opt-in capability in the app's `cordis.yml`, never a product default. +The trust stance, stated once and threaded through the rest: the `node:vm` sandbox isolates the global context only — it prevents accidental global pollution, not malice — and the `ctx` a mounted plugin's `apply` receives is a whitelist façade that narrows the *surface* (framework internals withheld) but not the *privilege* of what it exposes. The verbs the façade does expose reach the real runtime: a mounted tool can shell out through `ctx.bash`, read the filesystem through `ctx.fs`, reach the network through `ctx.web`. Neither the sandbox nor the façade is a security boundary; handing the model this power is the point of the toolset. A deployment loads this plugin exactly as deliberately as it grants a bash tool — an opt-in capability in the app's `cordis.yml`, never a product default. ### The three tools @@ -30,7 +30,7 @@ Mount code runs via `vm.createContext` + `runInContext`, wrapped as the body of Sandbox globals are deliberately small: a tagged write-through `console` (`[cordis:] …` on the host stdout/stderr, so a listener that fires long after the mount call still lands somewhere the user sees), the `harness.defineTool` / `harness.registerTool` registration pair, the encoding primitives fresh vm contexts lack (`btoa`/`atob` as host closures over `Buffer` — a sanctioned exception, `Buffer` itself is never exposed — plus `TextEncoder`/`TextDecoder`), and callable traps over the withheld Node APIs (`require`, `setTimeout`/`setInterval`/`setImmediate`/`clearTimeout`/`clearInterval`, `fetch`) that throw a redirect naming the cordis alternative. Only function-shaped globals are trapped; `process` and `Buffer` stay `undefined` so a `typeof` feature probe stays inert rather than detonating a throwing accessor. -Three boundary mechanisms make model-written code behave correctly across the realm seam. **Dual-realm `instanceof`**: most objects sandbox code touches are host-realm (tool `args`, event payloads, service returns), so a plain `x instanceof Array` in the vm would silently be false — a per-sandbox prelude gives the vm realm's own constructors a `Symbol.hasInstance` that checks both the vm constructor and its host counterpart, patching only vm-realm globals. **Realm normalization of tool results**: objects built inside the vm carry the vm realm's `Object.prototype`, which the session log's append-time plainness check (`isJsonValue` in `dsh-session`, a prototype-identity comparison) rejects, so the sandbox's `harness.defineTool` JSON round-trips every `execute` return into the host realm — which also projects it onto exactly what the log durably stores. **Guarded registration**: the `ctx` a mounted plugin receives is a proxy whose `tools.register` accepts only definitions returned by `harness.defineTool` (a marker symbol), so every dynamic tool passes SchemaSpec validation and realm normalization; everything else on `ctx` passes through with correct `this` binding, which is what keeps cross-mount `provide`/`inject` working. +Three boundary mechanisms make model-written code behave correctly across the realm seam. **Dual-realm `instanceof`**: most objects sandbox code touches are host-realm (tool `args`, event payloads, service returns), so a plain `x instanceof Array` in the vm would silently be false — a per-sandbox prelude gives the vm realm's own constructors a `Symbol.hasInstance` that checks both the vm constructor and its host counterpart, patching only vm-realm globals. **Realm normalization of tool results**: objects built inside the vm carry the vm realm's `Object.prototype`, which the session log's append-time plainness check (`isJsonValue` in `dsh-session`, a prototype-identity comparison) rejects, so the sandbox's `harness.defineTool` JSON round-trips every `execute` return into the host realm — which also projects it onto exactly what the log durably stores. **A whitelist context façade**: the `ctx` a mounted plugin's `apply` receives is NOT the real context nor a pass-through proxy over it — it is a façade exposing only what a mount legitimately needs (`tools.register` marker-guarded, `on`/`once`, `provide`, the timer helpers, and injected services resolved through a guarded `get`), with every framework-plumbing member (`root`, `parent`, `fiber`, `reflect`, `registry`, `extend`, `isolate`, `intercept`, `plugin`, `set`, `mixin`, …) denied with a teaching error. This closes an escape *class* rather than a single hole: a proxy that merely special-cased `ctx.tools` still handed back the raw context through `ctx.root`, `ctx.extend()`, or a service instance's `.ctx`, and mount code could then `ctx.root.tools.register({…})` to bypass the marker check and realm normalization — a raw vm-realm result then errors a real agent turn at the plainness check. The façade has no context-valued member to reach, and the one indirect leak (an injected-service method returning a `Context`) is rejected on the way back to sandbox code; cross-mount `provide`/`inject` keeps working because the plugin's own `inject` and the fiber's pending/active gating are untouched — only the `apply`-time `ctx` surface is narrowed. Boundary errors are written around the mistakes models actually make (see [Consequences](#consequences) for how each was found), and the boundary normalizes rather than lectures wherever the input has exactly one meaning: schema `parameters` accept the JSON-Schema dialect models write by strong prior — the `{ type: 'object', properties, required: […] }` wrapper unwraps to the SchemaSpec DSL (the `required` array becoming per-property flags, at any nesting level), `type: 'integer'` maps to `number`, and `required: false` reads as optional — while genuinely meaningless input is rejected with the vocabulary enumerated (an unknown type lists the five valid ones; a non-boolean `required` names the rule). The remaining teaching errors: an unbalanced `});` closing gets the vm's offending source line plus a "code is a function body" reminder; TypeScript syntax gets the remove-annotations fix (detected on the failing line only, so an ` as ` inside a description string does not misfire); a forgotten `return` gets the two valid plugin forms; a Node built-in call gets the redirect to its cordis service; a tool-name collision on re-mount gets the unmount-first-then-remount recipe. @@ -40,7 +40,7 @@ Every dynamic mount is a child of a single `cordis-dynamic` group fiber, itself ### Cross-mount composition via provide/inject -Mounts relate to each other through ordinary cordis service semantics, with their ids as the lifecycle handles: mount A calls `ctx.provide('foo', value)`, mount B declares `inject: ['foo']` and activates the moment `foo` exists; mounted first, B stays pending and names the missing service; unmounting A sends B back to pending (its registrations unwound) and a later re-provide re-runs B's `apply` through the same guarded context; a duplicate provide fails loud with the owning fiber named. One realm caveat: a service value provided by a mount is a vm-realm object — method calls on it work from anywhere, but consumers must not assume host prototypes on it. +Mounts relate to each other through ordinary cordis service semantics, with their ids as the lifecycle handles: mount A calls `ctx.provide('foo', value)`, mount B declares `inject: ['foo']` and activates the moment `foo` exists; mounted first, B stays pending and names the missing service; unmounting A sends B back to pending (its registrations unwound) and a later re-provide re-runs B's `apply` through a fresh sandbox façade; a duplicate provide fails loud with the owning fiber named. One realm caveat: a service value provided by a mount is a vm-realm object — method calls on it work from anywhere, but consumers must not assume host prototypes on it. ### The generated API catalog @@ -73,7 +73,7 @@ The correctness investment therefore goes where it pays for every capability at **A new `cordis/mount` session event.** A durable provenance event recording each mount (source, name) has clear precedent (`hook/invoked`, `compact/start`). It was declined for v1: mount and unmount are already visible as `tool/call` / `tool/result` pairs and the tool-set change is already logged as a request-header delta, so a dedicated event would only duplicate the record. It remains addable if an audit use case needs mount provenance separable from the tool call. -**A hardened / capability-restricted sandbox.** Trapping Node built-ins might suggest an intent to sandbox for safety. It is explicitly not that: the traps redirect the model toward cordis services (and away from leak-prone Node timers) for correctness and inspectability, but `ctx` is fully privileged and the vm is not a security boundary. A real security boundary (separate process, permission prompts) was out of scope for a dev/opt-in toolset and would fight the entire point — handing the model the live runtime. +**A hardened / capability-restricted sandbox.** Trapping Node built-ins and handing mount code a whitelist façade rather than the raw context might suggest an intent to sandbox for safety. It is explicitly not that: the traps and the façade narrow the *surface* mount code sees — steering it onto cordis services and away from leak-prone Node built-ins and framework internals — for correctness and to close the unguarded-context escape, but the capabilities the façade exposes (`ctx.bash`, `ctx.fs`, `ctx.web`) reach the real runtime, so it is not a security boundary. A real one (separate process, permission prompts) was out of scope for a dev/opt-in toolset and would fight the entire point — handing the model the live runtime. ## Consequences diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md index ec1546592c..990e135b1c 100644 --- a/docs/tool-catalog.md +++ b/docs/tool-catalog.md @@ -136,7 +136,7 @@ Source: [`packages/cordis/tool-cordis/src/index.ts`](../packages/cordis/tool-cor ### `cordis_mount` -Mount a NEW cordis plugin into the live runtime that is running THIS agent (self-modification). `code` runs as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — cannot declare inject, uses whatever services are on the parent context, and accessing a service without inject (e.g. ctx.bash) throws; use it only when you need no injected services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form for any plugin that needs bash, llm, sessions, etc. BEFORE calling a service from your code, read cordis_inspect what:"api" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:"events"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, async execute(args) { … } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'boolean'|'object'|'array', required?: true, description?, enum?, items?, properties? }; a JSON-Schema-style { type: 'object', properties, required: […] } wrapper and type 'integer' are also accepted and normalized. A tool's `execute` MUST return an ARRAY of content blocks, e.g. `return [{ type: 'text', text: someString }]` — never a bare string. Mounts can COMPOSE: one plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically on unmount. Sandbox globals: `console` (tagged `[cordis:]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned on unmount) — cordis_inspect what:"api" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) The sandbox prevents accidental global pollution, not malice: `ctx` is the real, fully privileged runtime handle. +Mount a NEW cordis plugin into the live runtime that is running THIS agent (self-modification). `code` runs as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — cannot declare inject, uses whatever services are on the parent context, and accessing a service without inject (e.g. ctx.bash) throws; use it only when you need no injected services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form for any plugin that needs bash, llm, sessions, etc. BEFORE calling a service from your code, read cordis_inspect what:"api" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:"events"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, async execute(args) { … } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'boolean'|'object'|'array', required?: true, description?, enum?, items?, properties? }; a JSON-Schema-style { type: 'object', properties, required: […] } wrapper and type 'integer' are also accepted and normalized. A tool's `execute` MUST return an ARRAY of content blocks, e.g. `return [{ type: 'text', text: someString }]` — never a bare string. Mounts can COMPOSE: one plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically on unmount. Sandbox globals: `console` (tagged `[cordis:]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned on unmount) — cordis_inspect what:"api" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime. ```json { diff --git a/packages/cordis/tool-cordis/README.md b/packages/cordis/tool-cordis/README.md index b369a7209b..651f3273d9 100644 --- a/packages/cordis/tool-cordis/README.md +++ b/packages/cordis/tool-cordis/README.md @@ -12,7 +12,7 @@ Exact model-facing schemas: [the generated tool catalog](../../../docs/tool-cata ## Trust stance -The sandbox isolates the global context only — it is not a security boundary. No Node API is provided: `require`, the timers, and `fetch` are callable traps that throw a redirect to the cordis alternative (`ctx.fs` / `ctx.web` / `ctx.bash` / `inject: ['timer']` + `ctx.setTimeout`); `process` and `Buffer` are `undefined`; `globalThis` writes stay inside. The `ctx` a mounted plugin's `apply` receives is the real, fully privileged runtime handle; load this plugin as deliberately as you would grant a bash tool. +The sandbox isolates the global context only — it is not a security boundary. No Node API is provided: `require`, the timers, and `fetch` are callable traps that throw a redirect to the cordis alternative (`ctx.fs` / `ctx.web` / `ctx.bash` / `inject: ['timer']` + `ctx.setTimeout`); `process` and `Buffer` are `undefined`; `globalThis` writes stay inside. The `ctx` a mounted plugin's `apply` receives is a whitelist façade — register tools, observe events, provide/consume services, use timers; framework internals (`ctx.root`, `ctx.fiber`, `ctx.extend`, `ctx.plugin`, …) are withheld — but the capabilities it does expose reach the real runtime, so load this plugin as deliberately as you would grant a bash tool. ## Config diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts index 39f1a12f47..83170d8dc1 100644 --- a/packages/cordis/tool-cordis/src/api-catalog.ts +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -88,6 +88,13 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ 'onTaskDone(listener: BashTaskListener): () => void', ], }, + { + key: 'codeRuntime', + summary: 'Abstract code-execution service.', + methods: [ + 'abstract run(request: CodeRunRequest): Promise', + ], + }, { key: 'compact', summary: 'Abstract compaction service.', @@ -429,6 +436,30 @@ export const TYPE_API: readonly TypeApiEntry[] = [ name: 'CallId', declaration: 'export type CallId = Branded<\'CallId\'>;', }, + { + name: 'CodeBindingFunction', + declaration: 'export type CodeBindingFunction = (args: unknown) => Promise;', + }, + { + name: 'CodeBindingNamespace', + declaration: 'export interface CodeBindingNamespace {\n global: string;\n functions: Record;\n}', + }, + { + name: 'CodeLogEntry', + declaration: 'export interface CodeLogEntry {\n source: \'console\' | \'stdout\' | \'stderr\';\n level?: \'log\' | \'info\' | \'warn\' | \'error\' | \'debug\';\n text: string;\n}', + }, + { + name: 'CodeRunFailure', + declaration: 'export interface CodeRunFailure {\n kind: \'exception\' | \'timeout\' | \'abort\' | \'worker-exit\';\n message: string;\n}', + }, + { + name: 'CodeRunRequest', + declaration: 'export interface CodeRunRequest {\n program: string;\n bindings: CodeBindingNamespace[];\n signal?: AbortSignal;\n}', + }, + { + name: 'CodeRunResult', + declaration: 'export interface CodeRunResult {\n value?: unknown;\n logs: CodeLogEntry[];\n error?: CodeRunFailure;\n}', + }, { name: 'CollectedOutput', declaration: 'export interface CollectedOutput {\n text: string;\n truncated: boolean;\n spillPath?: string;\n}', diff --git a/packages/cordis/tool-cordis/src/guard.ts b/packages/cordis/tool-cordis/src/guard.ts index 998997a8f9..07cd0f1df3 100644 --- a/packages/cordis/tool-cordis/src/guard.ts +++ b/packages/cordis/tool-cordis/src/guard.ts @@ -2,18 +2,35 @@ * The registration boundary between sandboxed mount code and the real runtime: * SchemaSpec normalization + validation with teaching errors, the * marker-guarded `harness.defineTool` / `harness.registerTool` pair, the - * guarded `ctx` proxy a mounted plugin receives, and the plugin-shape helpers - * the mount lifecycle narrows sandbox return values with. + * SANDBOX CONTEXT FAÇADE a mounted plugin's `apply` receives in place of the + * real `ctx`, and the plugin-shape helpers the mount lifecycle narrows sandbox + * return values with. * - * Two realm facts drive the design. Objects built inside the vm carry the vm + * The façade is a WHITELIST, not a pass-through proxy. Mount code needs to do + * exactly four things — register a tool, listen to an event, provide a service, + * call an injected service (timers included) — so the façade exposes only those + * verbs and the injected services, each individually wrapped. Every framework + * plumbing member (`root`, `parent`, `scope`, `fiber`, `reflect`, `registry`, + * `events`, `extend`, `isolate`, `intercept`, `plugin`, `set`, `mixin`, …) is + * DENIED with a teaching error rather than passed through. This closes an + * entire escape class at once: a pass-through proxy that only special-cased + * `ctx.tools` still handed back the raw context through `ctx.root`, + * `ctx.extend()`, or a service instance's `.ctx`, and mount code could then + * `ctx.root.tools.register({…})` to bypass the marker check and host-realm + * normalization — a raw vm-realm result then errors a real agent turn at the + * session-log plainness check. The whitelist has no such hole: there is no + * context-valued member to reach, and any injected-service method that returns + * a `Context` is rejected (harness services never do — see {@link denyContext}). + * + * Two realm facts drive the tool path. Objects built inside the vm carry the vm * realm's `Object.prototype`, and the session log's append-time plainness check * (`dsh-session`'s `isJsonValue`, a prototype-identity comparison) rejects * foreign-realm data — so every dynamic tool's `execute` return is JSON * round-tripped into the host realm before it reaches the registry, and the * schema itself is rebuilt as fresh host-realm objects. And a malformed tool * schema must fail at REGISTRATION, not when a later request assembles it — so - * dynamic `ctx.tools.register` calls accept only definitions produced by the - * sandbox's `harness.defineTool`, which normalizes `parameters` up front. + * dynamic tool registration accepts only definitions produced by the sandbox's + * `harness.defineTool`, which normalizes `parameters` up front. * * Normalize, don't lecture, where the input has exactly one meaning: models * write the JSON-Schema dialect by strong prior (the `{ type: 'object', @@ -26,7 +43,8 @@ * @module @deepseek-ai/dsh-tool-cordis/guard */ -import type { Context, Plugin } from 'cordis' +import { Context } from 'cordis' +import type { Plugin } from 'cordis' import { defineTool } from '@deepseek-ai/dsh-tools' import type { ToolDefinition, ToolExecuteReturn } from '@deepseek-ai/dsh-tools' @@ -153,31 +171,116 @@ export function sandboxRegisterTool(ctx: Context, tool: unknown): () => void { return ctx.tools.register(tool) } -function bindMethod(value: unknown, target: object): unknown { - if (typeof value !== 'function') return value - return (...args: unknown[]): unknown => Reflect.apply(value, target, args) as unknown +/** + * The verbs a mounted plugin may reach through the sandbox `ctx` façade, + * beyond its injected services. `on`/`once` observe events, `provide` exposes + * a service to other mounts, and the timer helpers schedule work — each a + * fiber effect that unwinds on unmount. Everything else on a real cordis `ctx` + * is framework plumbing and is denied. Forwarded LAZILY: the timer helpers are + * mixin accessors that throw `without inject` when read on a plugin that did + * not inject `timer`, so the façade reads `ctx[verb]` only at call time — the + * plugin that never touches a timer never trips that, and one that does gets + * cordis's own inject error at the call site. + */ +const CTX_VERBS = new Set(['on', 'once', 'provide', 'timeout', 'interval', 'setTimeout', 'setInterval', 'throttle', 'debounce']) + +/** + * The tool-registry façade: only `register` (marker-guarded), plus the + * read-only `schemas` / `get` a mount may legitimately want. No other registry + * method (nothing that could re-enter the raw context) is exposed. + */ +function sandboxTools(ctx: Context): Record { + return { + register: (tool: unknown): (() => void) => sandboxRegisterTool(ctx, tool), + schemas: () => ctx.tools.schemas(), + get: (name: string) => ctx.tools.get(name), + } } -function guardedContext(ctx: Context): Context { - const tools = new Proxy(ctx.tools, { +/** + * Reject any injected-service return that is a cordis `Context`. Harness + * services return data, never a context; a value that is one would be a + * fresh, unguarded handle back into the runtime — the exact escape the façade + * exists to close — so it fails loud instead of reaching sandbox code. + */ +function denyContext(value: unknown, service: string): unknown { + if (value instanceof Context) { + throw new Error( + `service "${service}" returned a cordis Context, which the sandbox does not expose. ` + + 'Operate through your own plugin ctx (ctx.on / ctx.provide / ctx.tools.register) ' + + 'and the services you inject — never another context.', + ) + } + return value +} + +/** + * Wrap an injected service so its methods forward to the real instance but + * their return values pass through {@link denyContext}. Non-function members + * (plain data) pass through as-is; a returned Promise is guarded on resolve. + */ +function guardedService(service: object, name: string): unknown { + return new Proxy(service, { get(target, prop) { - if (prop === 'register') { - return (tool: unknown): () => void => sandboxRegisterTool(ctx, tool) - } const value = Reflect.get(target, prop, target) as unknown - return bindMethod(value, target) + if (typeof value !== 'function') return denyContext(value, name) + return (...args: unknown[]): unknown => { + const result = Reflect.apply(value, target, args) as unknown + if (result instanceof Promise) return result.then(v => denyContext(v, name)) + return denyContext(result, name) + } }, }) - return new Proxy(ctx, { - get(target, prop) { +} + +/** + * The sandbox context façade handed to a mounted plugin's `apply` in place of + * the real `ctx`. A whitelist (see the module doc): the registration/eventing + * verbs, the timer helpers, a guarded `tools`, and injected services resolved + * through a guarded `get` / property access. Every framework-plumbing member + * is denied with a teaching error; there is no context-valued member to reach. + */ +function sandboxContext(ctx: Context): Context { + const tools = sandboxTools(ctx) + // Resolve a named service to a guarded wrapper, or undefined when absent. + const resolveService = (name: string): unknown => { + if (name === 'tools') return tools + const service: unknown = ctx.get(name) + return service === undefined ? undefined : guardedService(service as object, name) + } + const get = (name: string): unknown => resolveService(name) + return new Proxy({}, { + get(_target, prop) { if (prop === 'tools') return tools - if (prop === 'get') { - return (service: string): unknown => service === 'tools' ? tools : target.get(service) + if (prop === 'get') return get + if (typeof prop !== 'string') return undefined + // Lazy verb forwarder — reads `ctx[verb]` only when called, so a plugin + // that never uses a timer never triggers the timer mixin's inject check. + if (CTX_VERBS.has(prop)) { + return (...args: unknown[]): unknown => { + const method = ctx[prop as keyof Context] + return Reflect.apply(method as (...a: unknown[]) => unknown, ctx, args) + } } - const value = Reflect.get(target, prop, target) as unknown - return bindMethod(value, target) + // A declared-and-injected service reads as a ctx property; resolve it + // through the same guard. Absent → the deny path (framework plumbing, + // an un-injected service, or a typo) with one teaching error. + const service = resolveService(prop) + if (service !== undefined) return service + throw new Error( + `sandbox ctx does not expose "${prop}". Available: ctx.tools.register / ctx.on / ctx.provide / ` + + 'the timer helpers (ctx.setTimeout, ctx.interval, …) and any service you declared in inject. ' + + 'Framework internals (root, fiber, registry, extend, plugin, …) are withheld by design.', + ) }, - }) + // A façade is not the real ctx; block writes rather than let mount code + // stash state on a throwaway object and think it persisted. + set(_target, prop) { + throw new Error(`sandbox ctx is read-only; cannot assign "${String(prop)}"`) + }, + has: (_target, prop) => prop === 'tools' || prop === 'get' + || (typeof prop === 'string' && (CTX_VERBS.has(prop) || resolveService(prop) !== undefined)), + }) as unknown as Context } /** @@ -194,13 +297,19 @@ export function isPlugin(value: unknown): value is Plugin { } /** - * Wrap a plugin so its `apply` receives a guarded context (`tools.register` - * only accepts tools from `harness.defineTool`). Both function-form and - * object-form plugins go through the same guard; everything else on the - * context — `on`, `provide`, `inject` resolution — passes through with correct - * `this` binding, so cross-mount provide/inject works unmodified. + * Wrap a plugin so its `apply` receives the sandbox context façade instead of + * the real `ctx` (see {@link sandboxContext} and the module doc). Both + * function-form and object-form plugins go through the same wrap; the plugin's + * own `inject` declaration is preserved (cordis reads it from the plugin + * object, and pending/active gating happens on the real fiber before `apply` + * runs), so cross-mount provide/inject works unmodified. + * + * `ctx.effect(customCleanup)` is deliberately absent from the façade for now — + * `on` / `provide` / `tools.register` cover every mount seen so far, and each + * is already a fiber effect. FIXME(sandbox-effect): expose a guarded `effect` + * once a real mount needs a bespoke disposer. * @param plugin - the plugin the mount code returned. - * @returns an equivalent plugin whose `apply` sees the guarded context. + * @returns an equivalent plugin whose `apply` sees the sandbox context façade. */ export function guardedPlugin(plugin: Plugin): Plugin { if (typeof plugin === 'function') { @@ -208,7 +317,7 @@ export function guardedPlugin(plugin: Plugin): Plugin { return { name: pluginName(plugin), apply(ctx: Context, config?: unknown) { - return functionPlugin(guardedContext(ctx), config) + return functionPlugin(sandboxContext(ctx), config) }, } } @@ -216,7 +325,7 @@ export function guardedPlugin(plugin: Plugin): Plugin { return { ...plugin, apply(ctx: Context, config?: unknown) { - return objectPlugin.apply(guardedContext(ctx), config) + return objectPlugin.apply(sandboxContext(ctx), config) }, } } diff --git a/packages/cordis/tool-cordis/src/index.ts b/packages/cordis/tool-cordis/src/index.ts index 875637bfc4..f7d1958625 100644 --- a/packages/cordis/tool-cordis/src/index.ts +++ b/packages/cordis/tool-cordis/src/index.ts @@ -18,10 +18,14 @@ * this plugin. Design home: * docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md. * - * The vm sandbox guards against ACCIDENTAL global pollution only — it is not a - * security boundary. The `ctx` handed to the mounted plugin's `apply` is the - * real, fully privileged runtime handle; that is the point of the toolset, so - * a deployment loads this plugin as deliberately as it grants a bash tool. + * The vm sandbox guards against ACCIDENTAL global pollution only, and the `ctx` + * a mounted plugin's `apply` receives is a WHITELIST façade (register a tool, + * observe events, provide/consume services, use timers — framework internals + * withheld; see the guard module). Neither is a security boundary: the verbs + * the façade DOES expose reach the real runtime unsandboxed (a mounted tool can + * shell out through `ctx.bash`), so a deployment loads this plugin as + * deliberately as it grants a bash tool. Design home: + * docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md. * * Plugin export shape: named exports, NO default. The cordis Loader's * `unwrapExports` does `exports.default ?? exports`, so a stray default would @@ -159,8 +163,11 @@ export function apply(ctx: Context, config: Config): void { + 'VETOES the call; prefer plain notification events unless you intend to ' + 'intercept. (2) Never await something that only resolves after the current ' + 'turn (your code runs INSIDE a tool call of that turn — it would deadlock). ' - + '(3) The sandbox prevents accidental global pollution, not malice: `ctx` is ' - + 'the real, fully privileged runtime handle.', + + '(3) Your `ctx` is a restricted façade: you can register tools, observe ' + + 'events, provide/consume services, and use timers, but framework internals ' + + '(ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a ' + + 'security boundary though — the services you inject (e.g. ctx.bash) reach the ' + + 'real runtime.', parameters: { code: { type: 'string', diff --git a/packages/cordis/tool-cordis/tests/mount.spec.ts b/packages/cordis/tool-cordis/tests/mount.spec.ts index 543b38307f..d0db8d7efa 100644 --- a/packages/cordis/tool-cordis/tests/mount.spec.ts +++ b/packages/cordis/tool-cordis/tests/mount.spec.ts @@ -386,13 +386,13 @@ describe('cordis_mount', () => { console.error('errored') const round = atob(btoa('hi')) const bytes = new TextEncoder().encode(round) - return { name: 'codec-' + new TextDecoder().decode(bytes), apply(ctx) { console.log('applied', typeof ctx.fiber) } } + return { name: 'codec-' + new TextDecoder().decode(bytes), apply(ctx) { console.log('applied', typeof ctx.on) } } `, }) expect(result.isError).toBe(false) expect(text(result)).toContain('plugin "codec-hi"') expect(log).toHaveBeenCalledWith('[cordis:dyn-1]', 'warned') - expect(log).toHaveBeenCalledWith('[cordis:dyn-1]', 'applied', 'object') + expect(log).toHaveBeenCalledWith('[cordis:dyn-1]', 'applied', 'function') expect(error).toHaveBeenCalledWith('[cordis:dyn-1]', 'errored') }) diff --git a/packages/cordis/tool-cordis/tests/sandbox-context.spec.ts b/packages/cordis/tool-cordis/tests/sandbox-context.spec.ts new file mode 100644 index 0000000000..50f5b441a2 --- /dev/null +++ b/packages/cordis/tool-cordis/tests/sandbox-context.spec.ts @@ -0,0 +1,156 @@ +import { describe, expect, it } from 'vitest' +import { call, setup, text } from './helpers.ts' + +/** + * The sandbox context façade is a whitelist, not a pass-through proxy: mount + * code reaches only the registration/eventing verbs, the timer helpers, a + * guarded `tools`, and its injected services. Every framework-plumbing member + * that could hand back an UNGUARDED context — through which a plugin could + * `ctx..tools.register({…})` to bypass the marker check and host-realm + * normalization — is denied. These are the regression guards for that escape + * class (the review finding on the original pass-through proxy). + */ + +/** Mount a plugin whose `apply` touches one framework member, and report the error text. */ +async function mountTouching(ctx: Awaited>, expr: string): Promise { + const result = await call(ctx, 'cordis_mount', { + code: `return { name: 'probe', inject: ['tools'], apply(ctx) { ${expr} } }`, + }) + expect(result.isError).toBe(true) + return text(result) +} + +describe('sandbox context façade — escape surface is closed', () => { + it.each([ + ['ctx.root', 'const c = ctx.root'], + ['ctx.parent', 'const c = ctx.parent'], + ['ctx.scope', 'const c = ctx.scope'], + ['ctx.fiber', 'const f = ctx.fiber'], + ['ctx.reflect', 'const r = ctx.reflect'], + ['ctx.registry', 'const r = ctx.registry'], + ['ctx.events', 'const e = ctx.events'], + ['ctx.extend()', 'ctx.extend({})'], + ['ctx.isolate()', 'ctx.isolate("x")'], + ['ctx.intercept()', 'ctx.intercept("x", {})'], + ['ctx.plugin()', 'ctx.plugin({ apply() {} })'], + ['ctx.set()', 'ctx.set("tools", 1)'], + ['ctx.mixin()', 'ctx.mixin("x", [])'], + ])('denies %s with a teaching error', async (_label, expr) => { + const ctx = await setup() + const message = await mountTouching(ctx, expr) + expect(message).toContain('sandbox ctx does not expose') + expect(message).toContain('withheld by design') + }) + + it('the classic ctx.root.tools.register bypass registers nothing and fails loud', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'root-bypass', + inject: ['tools'], + apply(ctx) { + ctx.root.tools.register({ + name: 'smuggled', + description: 'raw, unguarded', + parameters: { type: 'object', properties: {} }, + async execute() { return [] }, + }) + }, + } + `, + }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('sandbox ctx does not expose "root"') + // The whole point: the bypass never reaches the registry. + expect(ctx.tools.get('smuggled')).toBeUndefined() + }) + + it('rejects assignment to the façade rather than silently dropping it', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: 'return { name: \'writer\', apply(ctx) { ctx.stash = 1 } }', + }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('sandbox ctx is read-only') + }) + + it('denies a service whose method returns a Context (the .ctx escape), registering nothing', async () => { + // A cordis Service instance carries `.ctx` (a real Context), so + // `ctx.systemPrompt.ctx.root.tools.register(…)` would be a fresh unguarded + // handle. The service wrapper's return-value guard rejects any Context on + // the way back to sandbox code, so the escape never lands. (`systemPrompt` + // is in the setup harness, so the plugin activates and its apply runs.) + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'svc-ctx-escape', + inject: ['systemPrompt', 'tools'], + apply(ctx) { + ctx.systemPrompt.ctx.root.tools.register({ + name: 'smuggled_via_service', + description: 'raw, unguarded', + parameters: { type: 'object', properties: {} }, + async execute() { return [] }, + }) + }, + } + `, + }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('returned a cordis Context, which the sandbox does not expose') + expect(ctx.tools.get('smuggled_via_service')).toBeUndefined() + }) + + it('guards an async injected-service method: a host-realm Promise resolves through the guard', async () => { + // The return guard's Promise arm only fires for a HOST-realm Promise + // (a vm-realm one is not `instanceof` the host `Promise`). Provide a + // host-realm service from the test, then inject + await it from a mount: + // the resolved value is non-Context data and passes through. + const ctx = await setup() + ctx.plugin({ + name: 'host-async-svc', + apply(c) { c.provide('hostAsync', { grab: async () => 'host-fetched' }) }, + }) + await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'async-consumer', + inject: ['hostAsync', 'tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'do_fetch', + description: 'awaits the host async service', + parameters: {}, + async execute() { + const value = await ctx.hostAsync.grab() + return [{ type: 'text', text: value }] + }, + })) + }, + } + `, + }) + const result = await call(ctx, 'do_fetch', {}) + expect(result.isError).toBe(false) + expect(text(result)).toBe('host-fetched') + }) + + it('reads a symbol property as undefined and answers the `in` operator without throwing', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'introspector', + inject: ['tools'], + apply(ctx) { + const sym = ctx[Symbol.iterator] + console.log('probe', sym === undefined, 'tools' in ctx, 'on' in ctx, 'root' in ctx) + }, + } + `, + }) + expect(result.isError).toBe(false) + }) +}) From 3e9527278a2e513a91c19d491170db076b91ca93 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 12:44:57 +0800 Subject: [PATCH 127/232] =?UTF-8?q?fix(tool-cordis):=20gate=20fa=C3=A7ade?= =?UTF-8?q?=20services=20on=20inject,=20and=20make=20tools.get=20read-only?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Two review findings (#220) on the sandbox context façade: - Undeclared services were reachable: the façade resolved any live global via ctx.get(name), so ctx.bash worked without inject: ['bash']. A cross-mount consumer could then depend on a provider cordis never saw — unmounting the provider would neither park the consumer nor unwind its registered tools, leaving a model-visible tool that fails only at execution. The façade now reads ctx.fiber.inject and refuses any service the mount did not declare (with a teaching error naming the inject fix), so the dependency is always visible to cordis and its activation/unload semantics bind. - ctx.tools.get returned the live ToolDefinition, including execute — mount code could call another tool directly and bypass ToolRegistry.execute and its pre/post-execute hooks and accounting. get now returns the same read-only name/description/parameters view as schemas(), never an invocable. Adds inject-gate and schema-view regression cases to sandbox-context.spec.ts (undeclared property/get denied, declared allowed, the cross-mount zombie-tool scenario refused at call time, get exposes no execute). Package stays at per-file 100% coverage. RFC, mount description, and tool-catalog updated. --- ...6-07-08-self-referential-cordis-toolset.md | 2 +- docs/tool-catalog.md | 2 +- packages/cordis/tool-cordis/src/guard.ts | 84 ++++++++--- packages/cordis/tool-cordis/src/index.ts | 10 +- .../cordis/tool-cordis/tests/mount.spec.ts | 2 - .../tool-cordis/tests/sandbox-context.spec.ts | 139 ++++++++++++++++++ 6 files changed, 207 insertions(+), 32 deletions(-) diff --git a/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md b/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md index 2ba398301b..fff36fee91 100644 --- a/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md +++ b/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md @@ -30,7 +30,7 @@ Mount code runs via `vm.createContext` + `runInContext`, wrapped as the body of Sandbox globals are deliberately small: a tagged write-through `console` (`[cordis:] …` on the host stdout/stderr, so a listener that fires long after the mount call still lands somewhere the user sees), the `harness.defineTool` / `harness.registerTool` registration pair, the encoding primitives fresh vm contexts lack (`btoa`/`atob` as host closures over `Buffer` — a sanctioned exception, `Buffer` itself is never exposed — plus `TextEncoder`/`TextDecoder`), and callable traps over the withheld Node APIs (`require`, `setTimeout`/`setInterval`/`setImmediate`/`clearTimeout`/`clearInterval`, `fetch`) that throw a redirect naming the cordis alternative. Only function-shaped globals are trapped; `process` and `Buffer` stay `undefined` so a `typeof` feature probe stays inert rather than detonating a throwing accessor. -Three boundary mechanisms make model-written code behave correctly across the realm seam. **Dual-realm `instanceof`**: most objects sandbox code touches are host-realm (tool `args`, event payloads, service returns), so a plain `x instanceof Array` in the vm would silently be false — a per-sandbox prelude gives the vm realm's own constructors a `Symbol.hasInstance` that checks both the vm constructor and its host counterpart, patching only vm-realm globals. **Realm normalization of tool results**: objects built inside the vm carry the vm realm's `Object.prototype`, which the session log's append-time plainness check (`isJsonValue` in `dsh-session`, a prototype-identity comparison) rejects, so the sandbox's `harness.defineTool` JSON round-trips every `execute` return into the host realm — which also projects it onto exactly what the log durably stores. **A whitelist context façade**: the `ctx` a mounted plugin's `apply` receives is NOT the real context nor a pass-through proxy over it — it is a façade exposing only what a mount legitimately needs (`tools.register` marker-guarded, `on`/`once`, `provide`, the timer helpers, and injected services resolved through a guarded `get`), with every framework-plumbing member (`root`, `parent`, `fiber`, `reflect`, `registry`, `extend`, `isolate`, `intercept`, `plugin`, `set`, `mixin`, …) denied with a teaching error. This closes an escape *class* rather than a single hole: a proxy that merely special-cased `ctx.tools` still handed back the raw context through `ctx.root`, `ctx.extend()`, or a service instance's `.ctx`, and mount code could then `ctx.root.tools.register({…})` to bypass the marker check and realm normalization — a raw vm-realm result then errors a real agent turn at the plainness check. The façade has no context-valued member to reach, and the one indirect leak (an injected-service method returning a `Context`) is rejected on the way back to sandbox code; cross-mount `provide`/`inject` keeps working because the plugin's own `inject` and the fiber's pending/active gating are untouched — only the `apply`-time `ctx` surface is narrowed. +Three boundary mechanisms make model-written code behave correctly across the realm seam. **Dual-realm `instanceof`**: most objects sandbox code touches are host-realm (tool `args`, event payloads, service returns), so a plain `x instanceof Array` in the vm would silently be false — a per-sandbox prelude gives the vm realm's own constructors a `Symbol.hasInstance` that checks both the vm constructor and its host counterpart, patching only vm-realm globals. **Realm normalization of tool results**: objects built inside the vm carry the vm realm's `Object.prototype`, which the session log's append-time plainness check (`isJsonValue` in `dsh-session`, a prototype-identity comparison) rejects, so the sandbox's `harness.defineTool` JSON round-trips every `execute` return into the host realm — which also projects it onto exactly what the log durably stores. **A whitelist context façade**: the `ctx` a mounted plugin's `apply` receives is NOT the real context nor a pass-through proxy over it — it is a façade exposing only what a mount legitimately needs (`tools.register` marker-guarded, a read-only `tools.get`/`schemas`, `on`/`once`, `provide`, the timer helpers, and the services the plugin DECLARED in `inject`), with every framework-plumbing member (`root`, `parent`, `fiber`, `reflect`, `registry`, `extend`, `isolate`, `intercept`, `plugin`, `set`, `mixin`, …) denied with a teaching error. This closes an escape *class* rather than a single hole: a proxy that merely special-cased `ctx.tools` still handed back the raw context through `ctx.root`, `ctx.extend()`, or a service instance's `.ctx`, and mount code could then `ctx.root.tools.register({…})` to bypass the marker check and realm normalization — a raw vm-realm result then errors a real agent turn at the plainness check. The façade has no context-valued member to reach, and the one indirect leak (an injected-service method returning a `Context`) is rejected on the way back to sandbox code. Two narrower rules complete the surface. First, **service access requires an `inject` declaration**: reaching a service the mount did not declare is refused even when a global provider is live — otherwise a mount could depend on a provider cordis never sees, and unmounting that provider would neither park the consumer nor unwind the tools it registered, leaving a model-visible tool that fails only at execution time. Because the read is gated on the declaration, cross-mount `provide`/`inject` keeps its lifecycle guarantees (the plugin's own `inject` and the fiber's pending/active gating drive activation and unload); only the `apply`-time `ctx` surface is narrowed. Second, **`ctx.tools.get` returns a read-only schema view** (name/description/parameters), never the live `ToolDefinition` — handing back the definition would expose its `execute`, letting mount code call another tool directly and bypass `ToolRegistry.execute` and its pre/post-execute hooks and accounting; a mount that wants to invoke a tool must go through the registry, and one that wants to introspect gets the same view `schemas()` returns. Boundary errors are written around the mistakes models actually make (see [Consequences](#consequences) for how each was found), and the boundary normalizes rather than lectures wherever the input has exactly one meaning: schema `parameters` accept the JSON-Schema dialect models write by strong prior — the `{ type: 'object', properties, required: […] }` wrapper unwraps to the SchemaSpec DSL (the `required` array becoming per-property flags, at any nesting level), `type: 'integer'` maps to `number`, and `required: false` reads as optional — while genuinely meaningless input is rejected with the vocabulary enumerated (an unknown type lists the five valid ones; a non-boolean `required` names the rule). The remaining teaching errors: an unbalanced `});` closing gets the vm's offending source line plus a "code is a function body" reminder; TypeScript syntax gets the remove-annotations fix (detected on the failing line only, so an ` as ` inside a description string does not misfire); a forgotten `return` gets the two valid plugin forms; a Node built-in call gets the redirect to its cordis service; a tool-name collision on re-mount gets the unmount-first-then-remount recipe. diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md index 990e135b1c..a2026904cf 100644 --- a/docs/tool-catalog.md +++ b/docs/tool-catalog.md @@ -136,7 +136,7 @@ Source: [`packages/cordis/tool-cordis/src/index.ts`](../packages/cordis/tool-cor ### `cordis_mount` -Mount a NEW cordis plugin into the live runtime that is running THIS agent (self-modification). `code` runs as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — cannot declare inject, uses whatever services are on the parent context, and accessing a service without inject (e.g. ctx.bash) throws; use it only when you need no injected services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form for any plugin that needs bash, llm, sessions, etc. BEFORE calling a service from your code, read cordis_inspect what:"api" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:"events"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, async execute(args) { … } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'boolean'|'object'|'array', required?: true, description?, enum?, items?, properties? }; a JSON-Schema-style { type: 'object', properties, required: […] } wrapper and type 'integer' are also accepted and normalized. A tool's `execute` MUST return an ARRAY of content blocks, e.g. `return [{ type: 'text', text: someString }]` — never a bare string. Mounts can COMPOSE: one plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically on unmount. Sandbox globals: `console` (tagged `[cordis:]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned on unmount) — cordis_inspect what:"api" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime. +Mount a NEW cordis plugin into the live runtime that is running THIS agent (self-modification). `code` runs as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — declares no inject, so it can register tools, listen to events, and provide services, but reaching ANY service (e.g. ctx.bash) throws; use it only when you need no services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form. You may reach ONLY the services you list in inject: an undeclared service throws even if it exists, because an undeclared dependency would not be cleaned up if its provider is unmounted. BEFORE calling a service from your code, read cordis_inspect what:"api" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:"events"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, async execute(args) { … } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'boolean'|'object'|'array', required?: true, description?, enum?, items?, properties? }; a JSON-Schema-style { type: 'object', properties, required: […] } wrapper and type 'integer' are also accepted and normalized. A tool's `execute` MUST return an ARRAY of content blocks, e.g. `return [{ type: 'text', text: someString }]` — never a bare string. Mounts can COMPOSE: one plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically on unmount. Sandbox globals: `console` (tagged `[cordis:]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned on unmount) — cordis_inspect what:"api" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime. ```json { diff --git a/packages/cordis/tool-cordis/src/guard.ts b/packages/cordis/tool-cordis/src/guard.ts index 07cd0f1df3..b124f6781f 100644 --- a/packages/cordis/tool-cordis/src/guard.ts +++ b/packages/cordis/tool-cordis/src/guard.ts @@ -185,15 +185,19 @@ export function sandboxRegisterTool(ctx: Context, tool: unknown): () => void { const CTX_VERBS = new Set(['on', 'once', 'provide', 'timeout', 'interval', 'setTimeout', 'setInterval', 'throttle', 'debounce']) /** - * The tool-registry façade: only `register` (marker-guarded), plus the - * read-only `schemas` / `get` a mount may legitimately want. No other registry - * method (nothing that could re-enter the raw context) is exposed. + * The tool-registry façade: `register` (marker-guarded) plus READ-ONLY + * metadata (`schemas`, and `get` returning a schema view, never the live + * `ToolDefinition`). Exposing the raw definition would hand mount code the + * tool's `execute` function, letting it call another tool directly and bypass + * `ToolRegistry.execute` — the pre/post-execute waterfall (permission gates, + * accounting) and result normalization. So `get` returns the same + * name/description/parameters view as `schemas()`, and nothing invocable. */ function sandboxTools(ctx: Context): Record { return { register: (tool: unknown): (() => void) => sandboxRegisterTool(ctx, tool), schemas: () => ctx.tools.schemas(), - get: (name: string) => ctx.tools.get(name), + get: (name: string) => ctx.tools.schemas().find(schema => schema.name === name), } } @@ -233,53 +237,85 @@ function guardedService(service: object, name: string): unknown { }) } +/** + * The service names a plugin declared in `inject`, as a lookup set. Whatever + * declaration style the plugin used — an `inject: ['bash', 'tools']` array or + * the `{ required, optional }` object form — cordis resolves it into a single + * name-keyed map on the fiber before `apply` runs (`{ bash: null, tools: null }`), + * so the gate just reads that map's keys. A mount may reach only the services + * it declared — that is what lets cordis park the mount when a declared + * provider unmounts. + */ +function declaredInjects(ctx: Context): Set { + return new Set(Object.keys(ctx.fiber.inject)) +} + /** * The sandbox context façade handed to a mounted plugin's `apply` in place of * the real `ctx`. A whitelist (see the module doc): the registration/eventing * verbs, the timer helpers, a guarded `tools`, and injected services resolved - * through a guarded `get` / property access. Every framework-plumbing member - * is denied with a teaching error; there is no context-valued member to reach. + * through a guarded `get` / property access. A service is reachable only if the + * plugin DECLARED it in `inject` — an undeclared service is denied even when a + * global provider exists, so cordis's activation/unload semantics (park the + * mount when a declared provider goes away) actually bind. Every + * framework-plumbing member is denied with a teaching error; there is no + * context-valued member to reach. */ function sandboxContext(ctx: Context): Context { const tools = sandboxTools(ctx) - // Resolve a named service to a guarded wrapper, or undefined when absent. - const resolveService = (name: string): unknown => { - if (name === 'tools') return tools - const service: unknown = ctx.get(name) - return service === undefined ? undefined : guardedService(service as object, name) + const declared = declaredInjects(ctx) + // A framework member or an undeclared service — distinguish the two so the + // error teaches the right fix (declare it in inject vs it is withheld). + const denyRead = (prop: string): never => { + if (ctx.get(prop) !== undefined) { + throw new Error( + `service "${prop}" is not injected. Declare it: inject: ['${prop}', …] on your plugin, ` + + 'so cordis parks this mount if the provider is later unmounted.', + ) + } + throw new Error( + `sandbox ctx does not expose "${prop}". Available: ctx.tools.register / ctx.on / ctx.provide / ` + + 'the timer helpers (ctx.setTimeout, ctx.interval, …) and any service you declared in inject. ' + + 'Framework internals (root, fiber, registry, extend, plugin, …) are withheld by design.', + ) } - const get = (name: string): unknown => resolveService(name) + // Read a service for either access path (property or `get`). `tools` is the + // façade's own surface. An UNDECLARED name is denied with the teaching + // error; a DECLARED one resolves to the guarded service. A declared inject + // is required in cordis (the fiber only activates once every declared + // service is live), so at `apply`/`execute` time `ctx.get(name)` is present + // for a declared name — no undefined case to handle here. + const readService = (name: string): unknown => { + if (name === 'tools') return tools + if (!declared.has(name)) return denyRead(name) + return guardedService(ctx.get(name) as object, name) + } + const get = (name: string): unknown => readService(name) return new Proxy({}, { get(_target, prop) { if (prop === 'tools') return tools if (prop === 'get') return get if (typeof prop !== 'string') return undefined // Lazy verb forwarder — reads `ctx[verb]` only when called, so a plugin - // that never uses a timer never triggers the timer mixin's inject check. + // that never uses a timer never triggers the timer mixin's inject check + // (cordis raises its own "without inject" error there for undeclared timer use). if (CTX_VERBS.has(prop)) { return (...args: unknown[]): unknown => { const method = ctx[prop as keyof Context] return Reflect.apply(method as (...a: unknown[]) => unknown, ctx, args) } } - // A declared-and-injected service reads as a ctx property; resolve it - // through the same guard. Absent → the deny path (framework plumbing, - // an un-injected service, or a typo) with one teaching error. - const service = resolveService(prop) - if (service !== undefined) return service - throw new Error( - `sandbox ctx does not expose "${prop}". Available: ctx.tools.register / ctx.on / ctx.provide / ` - + 'the timer helpers (ctx.setTimeout, ctx.interval, …) and any service you declared in inject. ' - + 'Framework internals (root, fiber, registry, extend, plugin, …) are withheld by design.', - ) + return readService(prop) }, // A façade is not the real ctx; block writes rather than let mount code // stash state on a throwaway object and think it persisted. set(_target, prop) { throw new Error(`sandbox ctx is read-only; cannot assign "${String(prop)}"`) }, + // `in` reflects reachability: the façade surface plus DECLARED services + // (whether or not currently live). Does not resolve/wrap — no throw. has: (_target, prop) => prop === 'tools' || prop === 'get' - || (typeof prop === 'string' && (CTX_VERBS.has(prop) || resolveService(prop) !== undefined)), + || (typeof prop === 'string' && (CTX_VERBS.has(prop) || declared.has(prop))), }) as unknown as Context } diff --git a/packages/cordis/tool-cordis/src/index.ts b/packages/cordis/tool-cordis/src/index.ts index f7d1958625..836d516120 100644 --- a/packages/cordis/tool-cordis/src/index.ts +++ b/packages/cordis/tool-cordis/src/index.ts @@ -125,12 +125,14 @@ export function apply(ctx: Context, config: Config): void { 'Mount a NEW cordis plugin into the live runtime that is running THIS agent ' + '(self-modification). `code` runs as the body of an async JavaScript function ' + 'in an isolated sandbox and MUST `return` a plugin. Two forms: ' - + 'FUNCTION form `return (ctx) => { … }` — cannot declare inject, uses whatever ' - + 'services are on the parent context, and accessing a service without inject ' - + '(e.g. ctx.bash) throws; use it only when you need no injected services. ' + + 'FUNCTION form `return (ctx) => { … }` — declares no inject, so it can register ' + + 'tools, listen to events, and provide services, but reaching ANY service (e.g. ' + + 'ctx.bash) throws; use it only when you need no services. ' + 'OBJECT form `return { name?, inject: [\'bash\', \'llm\', …], apply(ctx) { … } }` ' + '— declares dependencies, and cordis activates the plugin only after the ' - + 'services exist; PREFER this form for any plugin that needs bash, llm, sessions, etc. ' + + 'services exist; PREFER this form. You may reach ONLY the services you list in ' + + 'inject: an undeclared service throws even if it exists, because an undeclared ' + + 'dependency would not be cleaned up if its provider is unmounted. ' + 'BEFORE calling a service from your code, read cordis_inspect what:"api" — it lists ' + 'method signatures AND the type shapes of their arguments/returns (do not guess a ' + 'field\'s type; e.g. a bash run\'s stdout is an object, not a string). ' diff --git a/packages/cordis/tool-cordis/tests/mount.spec.ts b/packages/cordis/tool-cordis/tests/mount.spec.ts index d0db8d7efa..7ee266ce30 100644 --- a/packages/cordis/tool-cordis/tests/mount.spec.ts +++ b/packages/cordis/tool-cordis/tests/mount.spec.ts @@ -220,8 +220,6 @@ describe('cordis_mount', () => { return { name: 'raw-register-get', apply(ctx) { - const sp = ctx.get('systemPrompt') - console.log('systemPrompt is', typeof sp) ctx.get('tools').register({ name: 'raw_via_get', description: 'raw', parameters: {}, async execute() { return [] } }) }, } diff --git a/packages/cordis/tool-cordis/tests/sandbox-context.spec.ts b/packages/cordis/tool-cordis/tests/sandbox-context.spec.ts index 50f5b441a2..d3ade92572 100644 --- a/packages/cordis/tool-cordis/tests/sandbox-context.spec.ts +++ b/packages/cordis/tool-cordis/tests/sandbox-context.spec.ts @@ -154,3 +154,142 @@ describe('sandbox context façade — escape surface is closed', () => { expect(result.isError).toBe(false) }) }) + +describe('sandbox context façade — inject gate on services', () => { + it('denies an undeclared live service (property access), naming the inject fix', async () => { + // `systemPrompt` is a live global service in the setup harness, but this + // mount does not declare it — reaching it would let the mount depend on a + // provider cordis does not know about, so it is refused. + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: 'return { name: \'undeclared\', inject: [\'tools\'], apply(ctx) { const s = ctx.systemPrompt } }', + }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('service "systemPrompt" is not injected') + expect(text(result)).toContain('inject: [\'systemPrompt\', …]') + }) + + it('denies an undeclared live service reached through ctx.get too', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: 'return { name: \'undeclared-get\', inject: [\'tools\'], apply(ctx) { ctx.get(\'systemPrompt\') } }', + }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('service "systemPrompt" is not injected') + }) + + it('allows a service the mount DID declare in inject', async () => { + const ctx = await setup() + const result = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'declared', + inject: ['systemPrompt', 'tools'], + apply(ctx) { console.log('has systemPrompt:', typeof ctx.systemPrompt) } + } + `, + }) + expect(result.isError).toBe(false) + expect(text(result)).toContain('state: active') + }) + + it('a cross-mount consumer must declare the provider — the undeclared path is refused, not left as a zombie tool', async () => { + // The finding's scenario: a consumer registers a tool built on a provider's + // service WITHOUT declaring inject. cordis would then never park the + // consumer when the provider unmounts, leaving a tool that fails only at + // execution. The gate refuses the undeclared access up front, so the + // dependency is always visible to cordis. + const ctx = await setup() + await call(ctx, 'cordis_mount', { + code: 'return { name: \'greeter-provider\', apply(ctx) { ctx.provide(\'greeter\', { greet: (n) => \'hi \' + n }) } }', + }) + const undeclared = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'sloppy-consumer', + inject: ['tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'greet_undeclared', + description: 'uses greeter without declaring it', + parameters: { n: { type: 'string', required: true } }, + async execute(args) { return [{ type: 'text', text: ctx.greeter.greet(args.n) }] }, + })) + }, + } + `, + }) + // The tool registers (its execute is lazy), but calling it hits the gate: + // `ctx.greeter` is undeclared, so it fails with the teaching error rather + // than silently working and later stranding. + expect(undeclared.isError).toBe(false) + const called = await call(ctx, 'greet_undeclared', { n: 'x' }) + expect(called.isError).toBe(true) + expect(text(called)).toContain('service "greeter" is not injected') + }) +}) + +describe('sandbox tools façade — get is a read-only schema view', () => { + it('ctx.tools.get returns a schema, not the live ToolDefinition with execute', async () => { + // The finding: returning the raw ToolDefinition hands mount code the + // tool's execute function, letting it bypass ToolRegistry.execute (and its + // pre/post hooks). get now returns the same name/description/parameters + // view as schemas(), with no execute. Asserted via a self-made tool that + // reports the shape it saw — world-checked, not self-reported. + const ctx = await setup() + await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'reporter', + inject: ['tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'report_view', + description: 'reports the shape of a tool view', + parameters: {}, + async execute() { + const view = ctx.tools.get('cordis_mount') + return [{ type: 'text', text: JSON.stringify({ + hasExecute: 'execute' in view, + hasPresentCall: 'presentCall' in view, + name: view.name, + keys: Object.keys(view).sort(), + }) }] + }, + })) + }, + } + `, + }) + const reported = await call(ctx, 'report_view', {}) + expect(reported.isError).toBe(false) + const shape = JSON.parse(text(reported)) as { hasExecute: boolean; hasPresentCall: boolean; name: string; keys: string[] } + expect(shape.hasExecute).toBe(false) + expect(shape.hasPresentCall).toBe(false) + expect(shape.name).toBe('cordis_mount') + expect(shape.keys).toEqual(['description', 'name', 'parameters']) + }) + + it('ctx.tools.get returns undefined for an unknown tool', async () => { + const ctx = await setup() + await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'unknown-probe', + inject: ['tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'probe_unknown', + description: 'reports whether an unknown tool resolves', + parameters: {}, + async execute() { + return [{ type: 'text', text: String(ctx.tools.get('no_such_tool') === undefined) }] + }, + })) + }, + } + `, + }) + expect(text(await call(ctx, 'probe_unknown', {}))).toBe('true') + }) +}) From 0ba6d832f80049a6f7c7c89092619296b915b0ac Mon Sep 17 00:00:00 2001 From: pku-xht Date: Thu, 9 Jul 2026 14:19:36 +0800 Subject: [PATCH 128/232] docs: regenerate the module graph on the merged tree MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The master merge (5309ea54) resolved the module-graph conflict by hand, placing the subagent-subprocess dependency-table row ahead of util/timeout's; the generator's deterministic order (group order, util first) wants them swapped, so the freshness gate (gen-module-graph --check) failed CI's static job. Regenerated on the merged tree — a two-line swap; every other generated catalog was already resolution-fresh (regen-all changed nothing else). --- docs/module-graph.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/module-graph.md b/docs/module-graph.md index 3cb0d6c386..2b606d38db 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -229,8 +229,8 @@ flowchart TD | Package | Group | Depends on | | --- | --- | --- | | [`brand`](../packages/util/brand) | `util` | — | -| [`subagent-subprocess`](../packages/subagent/subagent-subprocess) | `subagent` | — | | [`timeout`](../packages/util/timeout) | `util` | — | +| [`subagent-subprocess`](../packages/subagent/subagent-subprocess) | `subagent` | — | | [`acp-snapshot`](../packages/support/acp-snapshot) | `support` | — | | [`app-boot`](../packages/ui/app-boot) | `ui` | — | | [`code-runtime`](../packages/code-runtime/code-runtime) | `code-runtime` | — | From 06cebf1bf4cbd840b00a6689b78cf44ca99fb562 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 14:21:58 +0800 Subject: [PATCH 129/232] fix(scope): make the dispatch carrier method-transparent for native-private subjects MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ds-review-bot delta-round finding, verified: cordis hands the carrier to listeners as `this`, and the event declarations type it Scoped — so driving the subject through it (this.send(...) in an agent/* listener) is a SUPPORTED shape. The withProps-based carrier delegated gets with the PROXY as receiver, so ReactLoopAgent's send/steer/cancel — which read the native-private #carrier through a getter — threw TypeError when called that way (private members do not exist on proxy receivers). scopeTarget now builds its own proxy: overlay props (the composed filter and the carrier mark) answer from a null-shadowed literal via hasOwn (`in` would let Object.prototype's toString/constructor shadow the subject's), every other get delegates with the BASE as receiver (getters see the real object) and returns functions bound to the base (method calls execute on the real receiver), sets land on the base. A proxy-invariant guard reports frozen own function props unchanged (binding them would violate the get invariant). This kills the class at the seam — any subject with native privates works, today's agents and whatever carries them next — instead of patching the one #carrier field. Pinned both ways: a scope.spec matrix (native-#private method/getter through the carrier mutates the real object; set delegation; frozen-own-prop invariant; overlay non-shadowing) and the bot's exact end-to-end scenario (an agent/session-start listener calling this.send drives a real turn) — both fail with TypeError against the withProps carrier. --- .../agent-loop/tests/scope-lifecycle.spec.ts | 23 +++++++ packages/core/scope/src/index.ts | 60 ++++++++++++++----- packages/core/scope/tests/scope.spec.ts | 43 +++++++++++++ 3 files changed, 111 insertions(+), 15 deletions(-) diff --git a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts index 7a45898b8e..b89f06727d 100644 --- a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts +++ b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts @@ -170,6 +170,29 @@ describe('agent scope lifecycle', () => { expect(heard).toEqual(['a1:2']) }) + it('a listener may drive the agent through its declared `this` (the carrier is method-transparent)', async () => { + // ds-review-bot regression: agent/* listeners are typed + // `this: Scoped`, and ReactLoopAgent's send/steer/cancel read the + // native-private #carrier — a proxy-receiver carrier made + // `this.send(...)` throw TypeError. The carrier binds methods to the real + // agent, so driving through the event `this` is a working supported shape. + const adapter = new MockAdapter([textResponse('first'), textResponse('second')]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + let followUpSent = false + ctx.on('agent/session-start', function (this: Agent) { + // Deliberately through `this`, not the args subject. + this.send(text('driven through this')) + followUpSent = true + }) + const second = ctx.agentLoop.create(AgentId('a2'), { model: 'mock' }) + expect(followUpSent).toBe(true) + await second.whenIdle() + // The send actually reached the loop: the prompt ran a turn. + expect(second.session.events.some(e => e.type === 'turn/start')).toBe(true) + await agent.whenIdle() + }) + it('owner unload honors the documented teardown order: unregistration AFTER the drain, before detach', async () => { const ctx = await harness() let handle!: ReturnType diff --git a/packages/core/scope/src/index.ts b/packages/core/scope/src/index.ts index 9c4fd0019e..1243b7d715 100644 --- a/packages/core/scope/src/index.ts +++ b/packages/core/scope/src/index.ts @@ -23,7 +23,7 @@ */ import type { Context } from 'cordis' -import { Context as CordisContext, withProps } from 'cordis' +import { Context as CordisContext } from 'cordis' /** * The identity a scope is keyed by. Opaque and compared by object identity — @@ -178,10 +178,14 @@ export function scopeOf(ctx: Context): ScopeKey | undefined { * * Use it as the `thisArg` of the dispatch: * `ctx.waterfall(scopeTarget(this, exec.agent), 'tools/pre-execute', …)`. The - * carrier is a proxy over `base` — listener `this` stays `base`-shaped, but - * identity-comparing `this` against the subject is not supported; the subject - * always travels in the event's arguments. The returned carrier is branded - * {@link Scoped} and runtime-marked ({@link isScopeCarrier} / + * carrier is a TRANSPARENT proxy over `base`: reads delegate with `base` as + * the receiver and retrieved methods are bound to `base`, so a listener may + * call subject methods through its `this` (`this.send(…)` on a + * `Scoped`) even when the subject uses native `#private` fields — a + * bare proxy receiver would throw on those. Identity is still not + * transparent: `this !== subject` and method identity varies per read; the + * subject always travels in the event's arguments. The returned carrier is + * branded {@link Scoped} and runtime-marked ({@link isScopeCarrier} / * {@link carrierKeyOf}) so both the type system and the dev invariants can * tell a carrier from a bare subject. * @param base - the object the event is dispatched on behalf of (the owning @@ -198,15 +202,41 @@ export function scopeTarget(base: T, key: ScopeKey | undefined const tag = scopeOf(ctx) return tag === undefined || tag === key } - // withProps overlays own-property reads; the symbol-keyed props have no - // structural overlap with T. withProps is typed `any` upstream (a generic - // proxy helper); the carrier is structurally the same T it overlays plus - // the compile-time brand, so pin the type via the return annotation. - // eslint-disable-next-line @typescript-eslint/no-unsafe-return - return withProps(base, { + const overlay: Record = { [CordisContext.filter]: filter, [kCarrier]: { key }, - }) + } + // A hand-rolled proxy, NOT cordis withProps: withProps delegates gets with + // the PROXY as receiver, so a getter on `base` runs with proxy `this` and a + // method call through the carrier gets a proxy receiver — either one throws + // on a native `#private` field of the subject (TypeError: private member + // not declared). Cordis hands the carrier to listeners as `this`, and the + // event declarations type it `Scoped` — so subject method calls + // through it are a SUPPORTED shape and must reach the real object: gets + // delegate with `base` as receiver, functions come back bound to `base`, + // and sets land on `base` directly. + return new Proxy(base, { + get(target, prop) { + // hasOwn, not `in`: the overlay literal inherits Object.prototype, so + // `in` would claim `toString`/`constructor` and shadow the subject's. + if (Object.hasOwn(overlay, prop)) return overlay[prop] + const value: unknown = Reflect.get(target, prop, target) + if (typeof value !== 'function') return value + // Proxy invariant guard: a non-configurable, non-writable OWN data + // property must be reported unchanged, so it cannot be bound. Class + // methods live on the prototype (no own descriptor) and bind freely; + // only a frozen own-function prop keeps the raw (unbound) function. + const own = Reflect.getOwnPropertyDescriptor(target, prop) + if (own !== undefined && own.configurable === false && own.writable === false) return value + // `Function.prototype.bind` types as `any`; the value is structurally + // T[prop] and the trap's contract is untyped (`any`), so unknown is the + // honest safe return. + return value.bind(target) as unknown + }, + set(target, prop, value) { + return Reflect.set(target, prop, value, target) + }, + }) as Scoped } /** @@ -219,9 +249,9 @@ export function scopeTarget(base: T, key: ScopeKey | undefined */ export function isScopeCarrier(value: unknown): value is Scoped { if (typeof value !== 'object' || value === null) return false - // A property READ, not an `in` check: withProps overlays props via get/set - // traps only (no `has` trap), so `kCarrier in carrier` would fall through to - // the wrapped base and always answer false. + // A property READ, not an `in` check: the carrier overlays its marks in the + // get trap only (no `has` trap), so `kCarrier in carrier` would fall + // through to the wrapped base and always answer false. return (value as { [kCarrier]?: { key: ScopeKey | undefined } })[kCarrier] !== undefined } diff --git a/packages/core/scope/tests/scope.spec.ts b/packages/core/scope/tests/scope.spec.ts index e932ed80db..53e5bc931b 100644 --- a/packages/core/scope/tests/scope.spec.ts +++ b/packages/core/scope/tests/scope.spec.ts @@ -179,6 +179,49 @@ describe('scopeTarget dispatch filtering', () => { expect(result).toBe('seed+v') expect(seenLabel).toBe('the-base') }) + + it('is transparent for subjects with native #private fields: methods and getters through the carrier reach the real object', () => { + // The ds-review-bot regression: cordis hands the carrier to listeners as + // `this` (typed Scoped), so subject method calls through it are a + // supported shape. A proxy that delegates with the PROXY as receiver + // (cordis withProps) throws TypeError on any native #private the method + // or getter touches; the carrier must delegate with the BASE as receiver + // and bind retrieved methods to it. + class Subject { + #count = 0 + bump(): number { return ++this.#count } + get count(): number { return this.#count } + } + const subject = new Subject() + const carrier = scopeTarget(subject, subject) + expect(carrier.bump()).toBe(1) // method call: bound to the base + expect(subject.count).toBe(1) // ...and it mutated the REAL object + expect(carrier.count).toBe(1) // getter: runs with the base as receiver + // The get trap returns the method already bound to the base; + // detachability IS the assertion. + // eslint-disable-next-line @typescript-eslint/unbound-method + const detached = carrier.bump + expect(detached()).toBe(2) + }) + + it('delegates sets to the base and leaves frozen own function props unbound (proxy invariant)', () => { + const frozenFn = (): string => 'frozen' + const base: { mutable: number; pinned: () => string; toString: () => string } = { + mutable: 0, + pinned: frozenFn, + toString: () => 'base-str', + } + Object.defineProperty(base, 'pinned', { value: frozenFn, writable: false, configurable: false }) + const carrier = scopeTarget(base, undefined) + carrier.mutable = 7 + expect(base.mutable).toBe(7) // sets land on the base, not a detached overlay + // A non-configurable, non-writable own data prop must be reported + // unchanged (binding it would violate the proxy get invariant). + expect(carrier.pinned).toBe(frozenFn) + // The overlay literal inherits Object.prototype; hasOwn (not `in`) keeps + // it from shadowing the subject's own prototype-surface members. + expect(String(carrier)).toBe('base-str') + }) }) describe('carrier marks', () => { From 013f12963bacfbc83f0c71ac12ca66942a81800d Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 14:39:17 +0800 Subject: [PATCH 130/232] fix(scope): generalize the carrier's proxy-invariant guard; keep the real constructor MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Codex follow-up findings on the carrier commit, both verified: B: the invariant guard only protected the bind path — an overlay key colliding with a non-configurable, non-writable OWN prop of a (pathological) base would have the get trap report the overlay value, which the engine rejects as a proxy invariant violation (TypeError at read time). The pin check now runs FIRST and covers both invariant-pinned shapes (non-writable own data prop reported as-is; getterless non-configurable accessor reported undefined via the delegated read) before overlay and bind alike. Such a base forgoes scope filtering by construction — correctness of the read beats filtering for a base no production code ships. C: `constructor` is looked up for identity, never invoked as a subject method — binding it broke `carrier.constructor === Subject` for no benefit; it now returns raw (the same special-case withProps had). Both pinned in scope.spec: the frozen-own-filter collision yields the base's value without throwing, and class identity survives the carrier. --- packages/core/scope/src/index.ts | 24 ++++++++++++++++-------- packages/core/scope/tests/scope.spec.ts | 22 ++++++++++++++++++++++ 2 files changed, 38 insertions(+), 8 deletions(-) diff --git a/packages/core/scope/src/index.ts b/packages/core/scope/src/index.ts index 1243b7d715..61b46978bd 100644 --- a/packages/core/scope/src/index.ts +++ b/packages/core/scope/src/index.ts @@ -217,17 +217,25 @@ export function scopeTarget(base: T, key: ScopeKey | undefined // and sets land on `base` directly. return new Proxy(base, { get(target, prop) { + // Proxy get invariants pin what this trap may report for a + // non-configurable OWN property of the base: a non-writable data prop + // must be reported AS-IS (neither overlaid nor bound), a getterless + // accessor as undefined — checked FIRST so even an overlay key + // colliding with a frozen own prop of a (pathological) base yields the + // base's value instead of an engine TypeError. Such a base forgoes + // scope filtering; no production base freezes these keys. + const own = Reflect.getOwnPropertyDescriptor(target, prop) + const pinned = own !== undefined && own.configurable === false + && own.get === undefined && own.writable !== true // hasOwn, not `in`: the overlay literal inherits Object.prototype, so // `in` would claim `toString`/`constructor` and shadow the subject's. - if (Object.hasOwn(overlay, prop)) return overlay[prop] + if (!pinned && Object.hasOwn(overlay, prop)) return overlay[prop] const value: unknown = Reflect.get(target, prop, target) - if (typeof value !== 'function') return value - // Proxy invariant guard: a non-configurable, non-writable OWN data - // property must be reported unchanged, so it cannot be bound. Class - // methods live on the prototype (no own descriptor) and bind freely; - // only a frozen own-function prop keeps the raw (unbound) function. - const own = Reflect.getOwnPropertyDescriptor(target, prop) - if (own !== undefined && own.configurable === false && own.writable === false) return value + if (typeof value !== 'function' || pinned) return value + // `constructor` is looked up, never invoked as a subject method — keep + // the real one (withProps special-cases it the same way), so + // `carrier.constructor` still identifies the subject's class. + if (prop === 'constructor') return value // `Function.prototype.bind` types as `any`; the value is structurally // T[prop] and the trap's contract is untyped (`any`), so unknown is the // honest safe return. diff --git a/packages/core/scope/tests/scope.spec.ts b/packages/core/scope/tests/scope.spec.ts index 53e5bc931b..664ae00d7e 100644 --- a/packages/core/scope/tests/scope.spec.ts +++ b/packages/core/scope/tests/scope.spec.ts @@ -222,6 +222,28 @@ describe('scopeTarget dispatch filtering', () => { // it from shadowing the subject's own prototype-surface members. expect(String(carrier)).toBe('base-str') }) + + it('honors the get invariant even when an overlay key collides with a frozen own prop of the base', () => { + // Pathological but engine-enforced: a base whose own [Context.filter] is + // a non-configurable, non-writable data prop pins what any proxy over it + // may report for that key. The carrier must yield the base's value (an + // overlay there would be a runtime TypeError from the engine, not a + // filtering choice). Such a base forgoes scope filtering by construction. + const pinnedFilter = (): boolean => true + const base = {} + Object.defineProperty(base, Context.filter, { value: pinnedFilter, writable: false, configurable: false }) + const carrier = scopeTarget(base, { name: 'key' }) + expect((carrier as Record)[Context.filter]).toBe(pinnedFilter) + }) + + it('keeps the real constructor: class identity survives the carrier', () => { + class Subject { work(): string { return 'w' } } + const subject = new Subject() + const carrier = scopeTarget(subject, subject) + // `constructor` is looked up, never invoked as a subject method — binding + // it would break `carrier.constructor === Subject` for no benefit. + expect(carrier.constructor).toBe(Subject) + }) }) describe('carrier marks', () => { From fd2c682477798c7198a2ab70cbe45d5e25d792c5 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 16:42:26 +0800 Subject: [PATCH 131/232] docs(subagent): state the re-assert placement guarantee precisely MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reviewer-agent C1 on the audit delta: "byte-identical" overstated the untampered-path guarantee — a 190-order section registered AFTER the structured runtime sorts before the instruction in the registry's stable sort but after it in the re-assert's band insertion. Intra-band section order carries no contract, so the behavior is right and unchanged; the module doc and both in-code comments now say exactly that instead of claiming byte identity. --- .../subagent-inprocess/src/structured.ts | 21 +++++++++++-------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts index 5107897c68..def740ec25 100644 --- a/packages/subagent/subagent-inprocess/src/structured.ts +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -21,9 +21,10 @@ * always carries its capture tool and the trailing instruction section. The * registry already contributes both; this outermost wrapper preserves the * guarantee against a (global) listener that strips or replaces the - * assembly — placement-preserving, so an untampered assembly reaches the - * model byte-identical (tools replaced in place, the section re-inserted at - * its ascending-order position). The loop logs the rendered assembly as the + * assembly — placement-preserving: tools are replaced in place, the section + * re-inserted at its ascending-order position, so the untampered path keeps + * the registry's ordering (identical output, up to intra-band section order + * — which carries no contract). The loop logs the rendered assembly as the * request header, so the demand is reconstructable log state, never a * wire-only mutation. * - `agent/turn-continuation` (prepend, scoped): stop the child's turn once @@ -148,10 +149,12 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut // mutated or injected a same-named entry with the WRONG schema/text, and // the model-visible demand must be exactly this run's own — the same // schema validateStructuredValue enforces. Placement-preserving on both - // arrays: the untampered path must reach the model byte-identical to the - // registry's output (tool order is the `toolOrder`/lexicographic - // contract, section order is the ascending contract `renderPrompt` - // trusts), so this never reorders what it only re-asserts. + // arrays: the untampered path keeps the registry's ordering (tool order + // is the `toolOrder`/lexicographic contract, section order the ascending + // contract `renderPrompt` trusts), so this never reorders what it only + // re-asserts — up to intra-band section order, which carries no contract + // (a 190-order section registered AFTER this runtime sorts before the + // instruction in the registry but after it here). const freshTool: ToolSchema = { ...schemaEntry, parameters: structuredClone(schemaEntry.parameters) } // Tools: replace the first same-named entry IN PLACE (its position is the // chain's product; a tool's list position carries no semantic band to @@ -173,8 +176,8 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut // DO carry an order contract, and the renderer reads array order, so a // stripped-or-moved instruction is restored to its band, not appended // after unrelated higher-order sections. On the untampered path this - // lands exactly where the registry's stable sort put it (last of the 190 - // band — the scoped section registers after every load-time 190). + // lands at the end of the 190 band — where the registry's stable sort + // put it too, unless another 190-order section registered later. const sectionName = `tool:${STRUCTURED_OUTPUT_TOOL}` const sections = final.sections.filter(section => section.name !== sectionName) const insertAt = sections.findIndex(section => section.order > 190) From 1e06fdbb86ecb56d80b4af13fab63de99d320583 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Thu, 9 Jul 2026 17:55:01 +0800 Subject: [PATCH 132/232] refactor: colocate user interaction with ui packages --- docs/capability-seams.md | 2 +- docs/config-catalog.md | 2 +- docs/cordis-catalog/services.md | 2 +- docs/core-data-structures/user-interaction.md | 4 ++-- docs/module-graph.md | 16 ++++++++-------- .../feature/2026-06-25-ask-user-question.md | 6 +++--- packages/core/README.md | 1 - packages/ui/README.md | 3 ++- packages/ui/acp-agent/tsconfig.json | 2 +- packages/ui/acp/tsconfig.json | 2 +- packages/ui/stdio-agent/tsconfig.json | 2 +- packages/ui/tool-ask-user/tsconfig.json | 2 +- packages/{core => ui}/user-interaction/README.md | 0 .../{core => ui}/user-interaction/package.json | 0 .../{core => ui}/user-interaction/src/index.ts | 0 .../tests/user-interaction.spec.ts | 0 .../{core => ui}/user-interaction/tsconfig.json | 2 +- pnpm-lock.yaml | 12 ++++++------ scripts/type-equiv.manifest.json | 14 +++++++------- tsconfig.build.json | 2 +- tsconfig.json | 2 +- 21 files changed, 38 insertions(+), 38 deletions(-) rename packages/{core => ui}/user-interaction/README.md (100%) rename packages/{core => ui}/user-interaction/package.json (100%) rename packages/{core => ui}/user-interaction/src/index.ts (100%) rename packages/{core => ui}/user-interaction/tests/user-interaction.spec.ts (100%) rename packages/{core => ui}/user-interaction/tsconfig.json (91%) diff --git a/docs/capability-seams.md b/docs/capability-seams.md index dcfa66bde0..caa7f438d7 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -146,7 +146,7 @@ flowchart LR | `ctx.sessionPersistence` | `seam` | [`session-persistence`](../packages/session-persistence/session-persistence) | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp) | - | Backends persist the same SessionEvent vocabulary; apps choose a backend at composition time. | | `ctx.systemPrompt` | `core` | [`system-prompt`](../packages/core/system-prompt) | - | [`agent-loop`](../packages/core/agent-loop), [`tools`](../packages/core/tools), [`tool-fs`](../packages/fs/tool-fs), [`tool-web`](../packages/web/tool-web) | - | Collects prompt sections and model-facing tool schemas for each step. | | `ctx.tools` | `core` | [`tools`](../packages/core/tools) | - | [`agent-loop`](../packages/core/agent-loop), [`tool-ask-user`](../packages/ui/tool-ask-user), [`tool-bash`](../packages/bash/tool-bash), [`tool-fs`](../packages/fs/tool-fs), [`tool-subagent`](../packages/subagent/tool-subagent), [`tool-todo`](../packages/todo/tool-todo), [`tool-web`](../packages/web/tool-web), [`acp`](../packages/ui/acp) | - | Registers tool definitions, exposes schemas to the prompt, and routes calls through tools/pre-execute and tools/post-execute. | -| `ctx.userInteraction` | `seam` | [`user-interaction`](../packages/core/user-interaction) | [`stdio-agent`](../packages/ui/stdio-agent), [`acp`](../packages/ui/acp) | [`tool-ask-user`](../packages/ui/tool-ask-user), [`stdio-agent`](../packages/ui/stdio-agent), [`acp`](../packages/ui/acp) | - | UI front doors provide the active human-answer provider; tool-ask-user pauses a tool call on the provider-neutral ask() promise. | +| `ctx.userInteraction` | `seam` | [`user-interaction`](../packages/ui/user-interaction) | [`stdio-agent`](../packages/ui/stdio-agent), [`acp`](../packages/ui/acp) | [`tool-ask-user`](../packages/ui/tool-ask-user), [`stdio-agent`](../packages/ui/stdio-agent), [`acp`](../packages/ui/acp) | - | UI front doors provide the active human-answer provider; tool-ask-user pauses a tool call on the provider-neutral ask() promise. | | `ctx.agents` | `core` | [`agent`](../packages/core/agent) | - | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp), [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`stdio-agent`](../packages/ui/stdio-agent), [`invariants`](../packages/support/invariants) | - | Owns live Agent handles and the create/resume factory seam. | | `ctx.agentLoop` | `bundle` | [`agent-loop`](../packages/core/agent-loop) | - | [`agent-core`](../packages/core/agent-core) | - | The one concrete loop plugin; extension packages depend on dsh-agent events and services, not on this package. | | `ctx.bash` | `seam` | [`bash`](../packages/bash/bash) | [`bash-local`](../packages/bash/bash-local) | [`tool-bash`](../packages/bash/tool-bash), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | - | The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors can replace bash-local. | diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 5d04a95ce2..340ae8018b 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -870,7 +870,7 @@ These load from a `cordis.yml` entry with no `config:` block; they declare no co - `@deepseek-ai/dsh-tool-bash` — requires `tools` · `bash` · `systemPrompt` ([`packages/bash/tool-bash/src/index.ts`](../packages/bash/tool-bash/src/index.ts)) - `@deepseek-ai/dsh-tool-todo` — requires `tools` ([`packages/todo/tool-todo/src/index.ts`](../packages/todo/tool-todo/src/index.ts)) - `@deepseek-ai/dsh-tools` — requires `systemPrompt` ([`packages/core/tools/src/index.ts`](../packages/core/tools/src/index.ts)) -- `@deepseek-ai/dsh-user-interaction` ([`packages/core/user-interaction/src/index.ts`](../packages/core/user-interaction/src/index.ts)) +- `@deepseek-ai/dsh-user-interaction` ([`packages/ui/user-interaction/src/index.ts`](../packages/ui/user-interaction/src/index.ts)) ## Seam packages (not directly loadable) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 1cd925ed70..968dcd8068 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -235,7 +235,7 @@ registerProvider(provider: UserInteractionProvider): () => void async ask(request: AskUserQuestionRequest): Promise ``` -Source: [`packages/core/user-interaction/src/index.ts:82`](../../packages/core/user-interaction/src/index.ts) +Source: [`packages/ui/user-interaction/src/index.ts:82`](../../packages/ui/user-interaction/src/index.ts) ## `ctx.web` — `WebService` diff --git a/docs/core-data-structures/user-interaction.md b/docs/core-data-structures/user-interaction.md index 1f8d135a51..6155fd9896 100644 --- a/docs/core-data-structures/user-interaction.md +++ b/docs/core-data-structures/user-interaction.md @@ -1,8 +1,8 @@ # User Interaction -The user-interaction seam of [dsh-user-interaction](../../packages/core/user-interaction). It is the provider-neutral vocabulary a tool or permission plugin uses when it needs the human to answer before the agent can continue. UI surfaces provide the active `UserInteractionProvider`: `dsh-stdio-agent` renders questions in readline, and `dsh-acp` maps them to ACP form elicitations. +The user-interaction seam of [dsh-user-interaction](../../packages/ui/user-interaction). It is the provider-neutral vocabulary a tool or permission plugin uses when it needs the human to answer before the agent can continue. UI surfaces provide the active `UserInteractionProvider`: `dsh-stdio-agent` renders questions in readline, and `dsh-acp` maps them to ACP form elicitations. -Source: [`packages/core/user-interaction/src/index.ts`](../../packages/core/user-interaction/src/index.ts) +Source: [`packages/ui/user-interaction/src/index.ts`](../../packages/ui/user-interaction/src/index.ts) ## Question options diff --git a/docs/module-graph.md b/docs/module-graph.md index 8275a48ee8..5ef8313b4e 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -23,7 +23,6 @@ flowchart TD pkg_session["session"] pkg_system_prompt["system-prompt"] pkg_tools["tools"] - pkg_user_interaction["user-interaction"] end subgraph group_bash["packages/bash"] pkg_bash["bash"] @@ -84,6 +83,7 @@ flowchart TD pkg_app_boot["app-boot"] pkg_stdio_agent["stdio-agent"] pkg_tool_ask_user["tool-ask-user"] + pkg_user_interaction["user-interaction"] end subgraph group_code_runtime["packages/code-runtime"] pkg_code_runtime["code-runtime"] @@ -126,8 +126,6 @@ flowchart TD pkg_tools --> pkg_agent pkg_tools --> pkg_llm pkg_tools --> pkg_system_prompt - pkg_user_interaction --> pkg_agent - pkg_user_interaction --> pkg_llm pkg_compact_basic --> pkg_agent pkg_compact_basic --> pkg_compact pkg_compact_basic --> pkg_llm @@ -139,6 +137,8 @@ flowchart TD pkg_invariants --> pkg_agent pkg_invariants --> pkg_llm pkg_invariants --> pkg_session + pkg_user_interaction --> pkg_agent + pkg_user_interaction --> pkg_llm pkg_agent_loop --> pkg_agent pkg_agent_loop --> pkg_llm pkg_agent_loop --> pkg_session @@ -264,11 +264,11 @@ flowchart TD | [`session-persistence`](../packages/session-persistence/session-persistence) | `session-persistence` | [`session`](../packages/core/session) | | [`llm-replay`](../packages/support/llm-replay) | `support` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt) | -| [`user-interaction`](../packages/core/user-interaction) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm) | | [`compact-basic`](../packages/compact/compact-basic) | `compact` | [`agent`](../packages/core/agent), [`compact`](../packages/compact/compact), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`invariants`](../packages/support/invariants) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | +| [`user-interaction`](../packages/ui/user-interaction) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm) | | [`agent-loop`](../packages/core/agent-loop) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-fs`](../packages/fs/tool-fs) | `fs` | [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | @@ -277,8 +277,8 @@ flowchart TD | [`timeout-policy`](../packages/timeout/timeout-policy) | `timeout` | [`llm`](../packages/llm/llm), [`timeout`](../packages/util/timeout), [`tools`](../packages/core/tools) | | [`tool-todo`](../packages/todo/tool-todo) | `todo` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`hooks-codex`](../packages/hooks/hooks-codex) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | -| [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools), [`user-interaction`](../packages/core/user-interaction) | -| [`tool-ask-user`](../packages/ui/tool-ask-user) | `ui` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools), [`user-interaction`](../packages/core/user-interaction) | +| [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | +| [`tool-ask-user`](../packages/ui/tool-ask-user) | `ui` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | | [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | `guard` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools) | | [`agent-core`](../packages/core/agent-core) | `core` | [`agent`](../packages/core/agent), [`agent-loop`](../packages/core/agent-loop), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tool-bash`](../packages/bash/tool-bash), [`tools`](../packages/core/tools) | | [`subagent-acp`](../packages/subagent/subagent-acp) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent) | @@ -288,5 +288,5 @@ flowchart TD | [`subagent-mock`](../packages/support/subagent-mock) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent) | | [`subagent-fork`](../packages/subagent/subagent-fork) | `subagent` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | [`subagent-spawn`](../packages/subagent/subagent-spawn) | `subagent` | [`subagent`](../packages/subagent/subagent), [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | -| [`acp-agent`](../packages/ui/acp-agent) | `ui` | [`acp`](../packages/ui/acp), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`user-interaction`](../packages/core/user-interaction) | -| [`stdio-agent`](../packages/ui/stdio-agent) | `ui` | [`agent`](../packages/core/agent), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`tool-ask-user`](../packages/ui/tool-ask-user), [`user-interaction`](../packages/core/user-interaction) | +| [`acp-agent`](../packages/ui/acp-agent) | `ui` | [`acp`](../packages/ui/acp), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`user-interaction`](../packages/ui/user-interaction) | +| [`stdio-agent`](../packages/ui/stdio-agent) | `ui` | [`agent`](../packages/core/agent), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`tool-ask-user`](../packages/ui/tool-ask-user), [`user-interaction`](../packages/ui/user-interaction) | diff --git a/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md b/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md index bc041cabc3..9320189de1 100644 --- a/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md +++ b/docs/rfc/implemented/feature/2026-06-25-ask-user-question.md @@ -10,7 +10,7 @@ This is a user-facing capability, but it also crosses package boundaries. A mode ## Decision -Introduce `dsh-user-interaction` as the core interface package for `ctx.userInteraction`, and keep the model-facing consumer `dsh-tool-ask-user` under `packages/ui/tool-ask-user` rather than the core spine. The split is intentional: core owns the abstract seam and stable request/answer/error vocabulary; UI product surfaces own the affordance that asks a human and the concrete provider that collects the answer. The tool registers `ask_user_question`, forwards `{ questions, agent, signal }`, and returns the provider-computed structured answers as the tool result. +Introduce `dsh-user-interaction` as the provider-neutral interface package for `ctx.userInteraction`, colocated with the model-facing consumer `dsh-tool-ask-user` under `packages/ui`. The grouping is intentional: asking a human is a UI-backed product affordance, not part of the providerless core spine. The seam still owns the stable request/answer/error vocabulary, while UI product surfaces provide the concrete provider that collects the answer. The tool registers `ask_user_question`, forwards `{ questions, agent, signal }`, and returns the provider-computed structured answers as the tool result. The model-facing request vocabulary is deliberately aligned with the product-research schema: `ask_user_question({ questions: [{ id, question, header?, options?: [{ label, description? }], multi_select? }] })`. `id` is supplied per question and echoed in the result so a batch can be routed without relying on question text. `label` is both user-facing display text and the selected value returned to the model; there is no separate `value`, no `recommended`, no `allow_custom`, and no `desc` alias. @@ -30,7 +30,7 @@ The ACP mapping deliberately uses elicitation, not `session/request_permission`. **Assistant text followed by a stopped turn.** The model could ask the user in plain assistant text and then stop. That loses the structured option metadata, gives UIs no provider-neutral way to render a choice, and forces the next human answer to arrive as a new user prompt rather than as the result of the operation that needed the answer. -**A core `tool-ask-user` package.** The first implementation put the model-facing tool under `packages/core`, but the tool is not providerless loop infrastructure. It is a product-facing affordance that only works when a UI provider exists, so core owns only the abstract `ctx.userInteraction` seam and the tool lives under `packages/ui`. +**Core-owned ask-user packages.** The first implementation split the seam and the model-facing tool across `packages/core` and `packages/ui`, but both names describe one UI-backed human-interaction affordance. The seam remains provider-neutral, but it is not providerless core infrastructure like sessions, tools, or the agent registry. Keeping `dsh-user-interaction` and `dsh-tool-ask-user` together under `packages/ui` makes the package map match the product boundary: apps and bridges provide the human-answer provider, and the stdio app opts into the model-facing tool. **ACP `session/request_permission`.** Permission requests are authorization around tool execution; `ask_user_question` is information gathering with optional free-form answers. Using permission for general questions would collapse two different product concepts and make the future permission gate harder to reason about. @@ -42,7 +42,7 @@ ACP elicitation is currently marked unstable in the SDK. The fallback is still s The feature gives the model a powerful pause primitive, so prompt guidance matters. The tool description tells the model to ask concise questions and use options when possible. Product policy can later wrap `tools/execute` to restrict when the tool is allowed, but the loop should not special-case it. -`dsh-tool-ask-user` lives in `packages/ui` even though it is a tool, because it is a product-facing human-interaction affordance rather than providerless loop infrastructure. The core package remains only the abstract seam; `agent-core` does not load the tool. `stdio-agent` opts into it alongside its readline provider. `acp-agent` keeps only the `userInteraction` seam/provider by default: ACP elicitation support is still client-dependent, so an ACP leaf must opt into the model-facing tool deliberately once its client can complete elicitation requests. +`dsh-user-interaction` and `dsh-tool-ask-user` both live in `packages/ui` because they form one product-facing human-interaction capability. `agent-core` does not load either the tool or a provider. `stdio-agent` opts into the seam, its readline provider, and the model-facing tool. `acp-agent` keeps only the `userInteraction` seam/provider by default: ACP elicitation support is still client-dependent, so an ACP leaf must opt into the model-facing tool deliberately once its client can complete elicitation requests. ## Testing diff --git a/packages/core/README.md b/packages/core/README.md index a2d01aa0df..eee8e3eed0 100644 --- a/packages/core/README.md +++ b/packages/core/README.md @@ -7,7 +7,6 @@ The packages every harness build is assembled from: the session log, the system- | `session/` | Event-sourced session log + in-memory store | `ctx.sessions` | | `system-prompt/` | Prompt-section + tool-schema assembly registry | `ctx.systemPrompt` | | `tools/` | Tool registry + `tools/pre-execute`/`tools/post-execute` pipeline | `ctx.tools` | -| `user-interaction/` | Abstract human question/answer seam used by UI-backed confirmation tools | `ctx.userInteraction` | | `agent/` | Agent interface, registry, `agent/*` event vocabulary | `ctx.agents` | | `agent-loop/` | The concrete loop plugin: `ReactLoopAgent` + the loop driver | `ctx.agentLoop` | | `agent-core/` | Bundle plugin: the providerless/executor-less/UI-less spine as code | (loads the spine) | diff --git a/packages/ui/README.md b/packages/ui/README.md index 7565d8b418..e87a5e4a10 100644 --- a/packages/ui/README.md +++ b/packages/ui/README.md @@ -5,6 +5,7 @@ Integrations that expose the agent to an external editor or client. These are ** | Package | Role | ctx key | |---|---|---| | `acp/` | Agent Client Protocol bridge: serves the agent to an ACP editor (Zed) over JSON-RPC stdio | (drives `ctx.agents`/`ctx.sessions`) | +| `user-interaction/` | Abstract human question/answer seam used by UI-backed confirmation tools | `ctx.userInteraction` | | `tool-ask-user/` | Model-facing `ask_user_question` tool over `ctx.userInteraction` | (registers on `ctx.tools`) | | `stdio-agent/` | Terminal stdio chat APP: the agent-core spine + console logger + readline UI + a pre-created `main` agent, with a `bin` | (composition + `bin`) | | `acp-agent/` | ACP server APP: the agent-core spine + JSONL persistence + the `acp` bridge (no stdout logger), with a `bin` | (composition + `bin`) | @@ -12,6 +13,6 @@ Integrations that expose the agent to an external editor or client. These are ** A UI integration is a client-driver plugin, not a loop change and not a capability seam: it consumes the existing `agent/*` event taxonomy and the `dsh-agent` factory. The readline UI is the unstructured analogue of the `acp` bridge and lives INSIDE the stdio app (the `stdio-chat` module of [`stdio-agent/`](stdio-agent/README.md)): it is scaffolding for that one front door, not an independently swappable integration, so it carries no package boundary of its own. -`tool-ask-user` lives here because it is a model-facing product affordance that depends on a UI/provider seam; it is not part of the providerless core spine. +`user-interaction` and `tool-ask-user` live here because asking a human is a UI-backed product affordance, not part of the providerless core spine. The seam remains provider-neutral (`ctx.userInteraction`), while the tool is the model-facing consumer and the app/bridge packages provide concrete providers. `stdio-agent` and `acp-agent` are the two **app packages**: each composes the [`core/agent-core`](../core/agent-core/README.md) spine with its coupled front-door cluster (and owns the boot `bin`), so a leaf `cordis.yml` is the swappable backends plus one app entry plus any optional product tools. They live in `ui/` because each IS a user-facing front door; the stdout-purity coupling (logger vs. no logger) becomes a property of the artifact rather than a leaf convention. diff --git a/packages/ui/acp-agent/tsconfig.json b/packages/ui/acp-agent/tsconfig.json index 1d544ae1c0..13009a2e5c 100644 --- a/packages/ui/acp-agent/tsconfig.json +++ b/packages/ui/acp-agent/tsconfig.json @@ -27,7 +27,7 @@ "path": "../../core/agent-core" }, { - "path": "../../core/user-interaction" + "path": "../user-interaction" }, { "path": "../tool-ask-user" diff --git a/packages/ui/acp/tsconfig.json b/packages/ui/acp/tsconfig.json index 9e24fa0f7a..9c2358c455 100644 --- a/packages/ui/acp/tsconfig.json +++ b/packages/ui/acp/tsconfig.json @@ -30,7 +30,7 @@ "path": "../../core/tools" }, { - "path": "../../core/user-interaction" + "path": "../user-interaction" }, { "path": "../../session-persistence/session-persistence" diff --git a/packages/ui/stdio-agent/tsconfig.json b/packages/ui/stdio-agent/tsconfig.json index 264b1cac4c..6f30c1558e 100644 --- a/packages/ui/stdio-agent/tsconfig.json +++ b/packages/ui/stdio-agent/tsconfig.json @@ -33,7 +33,7 @@ "path": "../../core/agent-core" }, { - "path": "../../core/user-interaction" + "path": "../user-interaction" }, { "path": "../tool-ask-user" diff --git a/packages/ui/tool-ask-user/tsconfig.json b/packages/ui/tool-ask-user/tsconfig.json index 06805c0b8f..c779bad37f 100644 --- a/packages/ui/tool-ask-user/tsconfig.json +++ b/packages/ui/tool-ask-user/tsconfig.json @@ -30,7 +30,7 @@ "path": "../../core/tools" }, { - "path": "../../core/user-interaction" + "path": "../user-interaction" } ] } diff --git a/packages/core/user-interaction/README.md b/packages/ui/user-interaction/README.md similarity index 100% rename from packages/core/user-interaction/README.md rename to packages/ui/user-interaction/README.md diff --git a/packages/core/user-interaction/package.json b/packages/ui/user-interaction/package.json similarity index 100% rename from packages/core/user-interaction/package.json rename to packages/ui/user-interaction/package.json diff --git a/packages/core/user-interaction/src/index.ts b/packages/ui/user-interaction/src/index.ts similarity index 100% rename from packages/core/user-interaction/src/index.ts rename to packages/ui/user-interaction/src/index.ts diff --git a/packages/core/user-interaction/tests/user-interaction.spec.ts b/packages/ui/user-interaction/tests/user-interaction.spec.ts similarity index 100% rename from packages/core/user-interaction/tests/user-interaction.spec.ts rename to packages/ui/user-interaction/tests/user-interaction.spec.ts diff --git a/packages/core/user-interaction/tsconfig.json b/packages/ui/user-interaction/tsconfig.json similarity index 91% rename from packages/core/user-interaction/tsconfig.json rename to packages/ui/user-interaction/tsconfig.json index cf9888627c..178ff39f3f 100644 --- a/packages/core/user-interaction/tsconfig.json +++ b/packages/ui/user-interaction/tsconfig.json @@ -15,7 +15,7 @@ "path": "../../../vendor/cordis" }, { - "path": "../agent" + "path": "../../core/agent" }, { "path": "../../llm/llm" diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 5ca98009c5..ee5887703e 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -320,11 +320,11 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) - packages/core/user-interaction: + packages/ui/user-interaction: devDependencies: '@deepseek-ai/dsh-agent': specifier: workspace:^ - version: link:../agent + version: link:../../core/agent '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm @@ -973,7 +973,7 @@ importers: version: link:../../core/tools '@deepseek-ai/dsh-user-interaction': specifier: workspace:^ - version: link:../../core/user-interaction + version: link:../user-interaction cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -1003,7 +1003,7 @@ importers: version: link:../../core/system-prompt '@deepseek-ai/dsh-user-interaction': specifier: workspace:^ - version: link:../../core/user-interaction + version: link:../user-interaction cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@vendor+include)(@cordisjs/plugin-loader@vendor+loader) @@ -1060,7 +1060,7 @@ importers: version: link:../tool-ask-user '@deepseek-ai/dsh-user-interaction': specifier: workspace:^ - version: link:../../core/user-interaction + version: link:../user-interaction cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@vendor+include)(@cordisjs/plugin-loader@vendor+loader) @@ -1084,7 +1084,7 @@ importers: version: link:../../core/tools '@deepseek-ai/dsh-user-interaction': specifier: workspace:^ - version: link:../../core/user-interaction + version: link:../user-interaction cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index 574d96231a..2d498e8b64 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -48,13 +48,13 @@ { "doc": "docs/core-data-structures/tools.md", "symbol": "StructuredSchemaNode", "source": "packages/core/tools/src/json-schema.ts" }, { "doc": "docs/core-data-structures/tools.md", "symbol": "StructuredOutputSchema", "source": "packages/core/tools/src/json-schema.ts" }, - { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionOption", "source": "packages/core/user-interaction/src/index.ts" }, - { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionItem", "source": "packages/core/user-interaction/src/index.ts" }, - { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionRequest", "source": "packages/core/user-interaction/src/index.ts" }, - { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionAnswerItem", "source": "packages/core/user-interaction/src/index.ts" }, - { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionAnswer", "source": "packages/core/user-interaction/src/index.ts" }, - { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "UserInteractionProvider", "source": "packages/core/user-interaction/src/index.ts" }, - { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "UserInteractionError", "source": "packages/core/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionOption", "source": "packages/ui/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionItem", "source": "packages/ui/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionRequest", "source": "packages/ui/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionAnswerItem", "source": "packages/ui/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "AskUserQuestionAnswer", "source": "packages/ui/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "UserInteractionProvider", "source": "packages/ui/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "UserInteractionError", "source": "packages/ui/user-interaction/src/index.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "BashExecRequest", "source": "packages/bash/bash/src/types.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "BashExecSpec", "source": "packages/bash/bash/src/types.ts" }, diff --git a/tsconfig.build.json b/tsconfig.build.json index cb01544e96..9f860bbca7 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -19,7 +19,7 @@ { "path": "./packages/session-persistence/session-persistence-sqlite" }, { "path": "./packages/core/system-prompt" }, { "path": "./packages/core/agent" }, - { "path": "./packages/core/user-interaction" }, + { "path": "./packages/ui/user-interaction" }, { "path": "./packages/core/tools" }, { "path": "./packages/ui/tool-ask-user" }, { "path": "./packages/core/agent-loop" }, diff --git a/tsconfig.json b/tsconfig.json index db2ae11298..1afdfa8e46 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -30,7 +30,7 @@ { "path": "./packages/session-persistence/session-persistence-sqlite" }, { "path": "./packages/core/system-prompt" }, { "path": "./packages/core/agent" }, - { "path": "./packages/core/user-interaction" }, + { "path": "./packages/ui/user-interaction" }, { "path": "./packages/core/tools" }, { "path": "./packages/ui/tool-ask-user" }, { "path": "./packages/core/agent-loop" }, From 4a15c8a4794788be27a17d02a6ee1795f83375c9 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 18:13:34 +0800 Subject: [PATCH 133/232] workflow: make the seam's listener containment total MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit emitWorkflowEvent's catch rendered the thrown value with a bare String(error), which itself throws when the value's toString / Symbol.toPrimitive throws — breaking the documented containment guarantee: such a listener could fail the run mid-emit, starve later listeners, and turn the detached workflow/end settle hook into an unhandled rejection. Render through a local total fallback instead (String in a try, a fixed label when even coercion throws); local because the seam sits below every engine and cannot import an engine's renderer. Regression: a listener throwing a coercion-trap value — the emit does not propagate and later listeners still run. --- packages/workflow/workflow/src/index.ts | 31 +++++++++++++++---- .../workflow/workflow/tests/workflow.spec.ts | 16 ++++++++++ 2 files changed, 41 insertions(+), 6 deletions(-) diff --git a/packages/workflow/workflow/src/index.ts b/packages/workflow/workflow/src/index.ts index 288f6af952..0e5a03c438 100644 --- a/packages/workflow/workflow/src/index.ts +++ b/packages/workflow/workflow/src/index.ts @@ -218,11 +218,12 @@ export abstract class WorkflowService extends Service { * with its OWN structural clone of the payload (the payloads are plain JSON * data by the seam contract), so a listener mutating what it received can * corrupt neither the engine's live state nor any other listener's or later - * event's view; a thrown listener is logged (never propagated), so one bad - * subscriber can neither fail the engine mid-run, surface as an unhandled - * rejection on a detached settle hook, nor starve the listeners registered - * after it (cordis `emit` halts on the first throw — same guarantee as the - * subagent seam's lifecycle emits). + * event's view; a thrown listener is logged (never propagated — the logging + * itself is total, even for a thrown value whose own string coercion + * throws), so one bad subscriber can neither fail the engine mid-run, + * surface as an unhandled rejection on a detached settle hook, nor starve + * the listeners registered after it (cordis `emit` halts on the first throw + * — same guarantee as the subagent seam's lifecycle emits). * @param name - the `workflow/*` event to dispatch. * @param args - the event's payload, matching its declared signature. */ @@ -233,10 +234,28 @@ export abstract class WorkflowService extends Service { // dispatch callback applies the payload tuple. ;(callback as (...payload: unknown[]) => void)(...structuredClone(args)) } catch (error: unknown) { - this.ctx.logger.warn(`workflow: ${name} listener threw: ${String(error)}`) + this.ctx.logger.warn(`workflow: ${name} listener threw: ${renderListenerError(error)}`) } } } } +/** + * Total renderer for a listener-thrown value: the containment catch must never + * itself throw, and `String(error)` does when the value's own `toString` / + * `Symbol.toPrimitive` throws. Local rather than an engine package's renderer + * — the seam sits below every engine and cannot import one. + * @param error - any thrown value. + * @returns `String(error)`, or a fixed label when even coercion throws. + */ +function renderListenerError(error: unknown): string { + try { + return String(error) + } catch { + // Only a throwing toString/Symbol.toPrimitive lands here; the fixed label + // keeps the containment guarantee total. + return '[unrenderable thrown value]' + } +} + export default WorkflowService diff --git a/packages/workflow/workflow/tests/workflow.spec.ts b/packages/workflow/workflow/tests/workflow.spec.ts index b303c02962..a983e5a2b3 100644 --- a/packages/workflow/workflow/tests/workflow.spec.ts +++ b/packages/workflow/workflow/tests/workflow.spec.ts @@ -102,6 +102,22 @@ describe('dsh-workflow (interface)', () => { expect(String(warn.mock.calls[0]![0])).toContain('workflow/phase listener threw') }) + it('containment is total: a listener throwing a value whose coercion throws neither propagates nor starves later listeners', async () => { + const ctx = new Context() + await ctx.plugin(StubEngine) + const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => ctx.logger) + const reached: string[] = [] + ctx.on('workflow/phase', () => { + throw { toString: () => { throw new Error('coercion trap') } } + }) + ctx.on('workflow/phase', (_info, title) => { reached.push(title) }) + const engine = ctx.workflows as StubEngine + expect(() => { engine.emit('workflow/phase', INFO, 'Scan') }).not.toThrow() + expect(reached).toEqual(['Scan']) + expect(warn).toHaveBeenCalledOnce() + expect(String(warn.mock.calls[0]![0])).toContain('[unrenderable thrown value]') + }) + it('has the expected export surface (default = the abstract service class)', () => { expect(WorkflowServiceDefault).toBe(WorkflowService) }) From fbc9eb313c47570294a4cf53b0984276da8e6a00 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 18:16:51 +0800 Subject: [PATCH 134/232] workflow: harden the seam-contract tests ahead of the engine swap MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Three engine-agnostic pins, landed BEFORE the worker-thread port so the port commit demonstrates contract preservation against them: - tool-workflow: the tool: prompt-section registration was entirely unasserted — assemble() now pins the section present under the CONFIGURED name and gone after fiber dispose (the packages AGENTS.md dispose-and-assert-cleanup rule; tool-bash is the template). - tool-workflow: drop the dead `??` re-defaulting of already- schemastery-resolved config (the hidden-fallback shape AGENTS.md bans) and the direct-apply test that existed only to cover those branches; both engines' `config as ResolvedConfig` is the pattern. - workflow-vm: workflow/end was asserted only on completed runs — the cancelled path and the grace force-settle path now pin the event and its stopReason/error/agentsStarted payload (an observer's only death signal on those paths). --- packages/workflow/tool-workflow/src/index.ts | 7 +++++-- .../tool-workflow/tests/tool-workflow.spec.ts | 19 ++++++++----------- .../workflow-vm/tests/workflow-vm.spec.ts | 12 +++++++++++- 3 files changed, 24 insertions(+), 14 deletions(-) diff --git a/packages/workflow/tool-workflow/src/index.ts b/packages/workflow/tool-workflow/src/index.ts index a5eae80aec..22ab21ffc6 100644 --- a/packages/workflow/tool-workflow/src/index.ts +++ b/packages/workflow/tool-workflow/src/index.ts @@ -49,6 +49,8 @@ export const Config: z = z.object({ maxResultChars: z.natural().min(1).default(50_000), }) +type ResolvedConfig = Required + /** * The script-authoring contract, embedded in the tool description. This IS the * model-facing spec: the meta block, the hooks and their exact semantics, and @@ -120,8 +122,9 @@ function renderResult(run: WorkflowRun, result: WorkflowResult, maxChars: number } export function apply(ctx: Context, config: Config): void { - const maxResultChars = config.maxResultChars ?? 50_000 - const toolName = config.toolName ?? 'workflow' + // schemastery (the exported Config schema) has already filled the defaulted + // fields; the assertion records that resolution, not a hidden fallback. + const { toolName, maxResultChars } = config as ResolvedConfig // Usage policy ships with the tool (the master convention: tool guidance // lives in tool plugins as prompt sections, not in the deployment persona). ctx.systemPrompt.section({ diff --git a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts index c9e0cf3713..68daecbe37 100644 --- a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts +++ b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts @@ -130,17 +130,6 @@ describe('dsh-tool-workflow', () => { expect(engine.disposed).toBe(1) }) - it('applies raw-config fallbacks when loaded without schemastery defaults (direct apply)', async () => { - const ctx = new Context() - await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) - await ctx.plugin(StubEngine) - // Direct apply with an empty RAW config: the `??` fallbacks resolve the - // tool name and render cap without schemastery having filled them. - toolWorkflow.apply(ctx, {}) - expect(ctx.tools.get('workflow')).toBeDefined() - }) - it('a synchronous engine start throw (parse/meta failure) becomes an isError result', async () => { const { ctx, engine, parent } = await setup() engine.startError = new Error('script must begin with `export const meta = {...}`') @@ -192,8 +181,16 @@ describe('dsh-tool-workflow', () => { const fiber = await ctx.plugin(toolWorkflow, { toolName: 'orchestrate' }) expect(ctx.tools.get('orchestrate')).toBeDefined() expect(ctx.tools.get('workflow')).toBeUndefined() + // The usage-policy prompt section rides the same registration: present + // under the CONFIGURED name (its guidance names the tool it describes)… + const sections = (await ctx.systemPrompt.assemble()).sections + const section = sections.find(s => s.name === 'tool:orchestrate') + expect(section?.text).toContain('orchestrate') + expect(sections.some(s => s.name === 'tool:workflow')).toBe(false) await fiber.dispose() expect(ctx.tools.get('orchestrate')).toBeUndefined() + // …and gone with the fiber — a reload must not leak a stale section. + expect((await ctx.systemPrompt.assemble()).sections.some(s => s.name === 'tool:orchestrate')).toBe(false) }) it('presents a generic pending card titled by the sniffed meta name, with the script as rawInput', async () => { diff --git a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts index eeda6bf049..bb685f536f 100644 --- a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts +++ b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts @@ -5,7 +5,7 @@ import { AgentId } from '@deepseek-ai/dsh-agent' import type { Agent } from '@deepseek-ai/dsh-agent' import SubagentService from '@deepseek-ai/dsh-subagent' import type { SubagentCapabilities, SubagentProvider, SubagentResult, SubagentRun, SubagentStartRequest } from '@deepseek-ai/dsh-subagent' -import type { WorkflowResult, WorkflowRunInfo } from '@deepseek-ai/dsh-workflow' +import type { WorkflowResult, WorkflowResultInfo, WorkflowRunInfo } from '@deepseek-ai/dsh-workflow' import * as vmEngineModule from '../src/index.ts' import VmWorkflowEngine, { type Config } from '../src/index.ts' @@ -534,6 +534,8 @@ describe('dsh-workflow-vm', () => { it('cancel() aborts in-flight children and settles the run cancelled', async () => { const { ctx, parent, provider } = await setup({ manual: true }) + const ends: WorkflowResultInfo[] = [] + ctx.on('workflow/end', (_info, result) => { ends.push(result) }) const handle = ctx.workflows.start({ script: script("return await agent('long job')"), parent }) await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) handle.cancel('user stopped it') @@ -541,6 +543,9 @@ describe('dsh-workflow-vm', () => { expect(result.stopReason).toBe('cancelled') expect(result.error).toContain('user stopped it') expect(provider.runs[0]!.disposed).toBe(true) + // workflow/end is an observer's only death signal: it fires for a + // cancelled run too, mirroring the settled outcome data. + expect(ends).toEqual([{ stopReason: 'cancelled', error: result.error, agentsStarted: 1 }]) await handle.dispose() }) @@ -787,6 +792,8 @@ describe('dsh-workflow-vm', () => { it('cancel() force-settles the result of a script parked on a promise no hook owns', async () => { const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: 30 } }) + const ends: WorkflowResultInfo[] = [] + ctx.on('workflow/end', (_info, result) => { ends.push(result) }) const handle = ctx.workflows.start({ // No hooks involved: an unsettleable await cancellation cannot reject // — the abandon grace is the only thing that can settle this run. @@ -797,6 +804,9 @@ describe('dsh-workflow-vm', () => { const result = await handle.result expect(result.stopReason).toBe('cancelled') expect(result.error).toContain('user aborted') + // The grace force-settle fires workflow/end exactly like an ordinary + // settlement — an abandoned script's death still reaches observers. + expect(ends).toEqual([{ stopReason: 'cancelled', error: result.error, agentsStarted: 0 }]) await handle.dispose() }) From e41dbe730335b6208db9a56594b8527f37615cf8 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Thu, 9 Jul 2026 18:42:51 +0800 Subject: [PATCH 135/232] docs: list the user-interaction packages in the ui/ group summaries --- AGENTS.md | 2 +- packages/README.md | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/AGENTS.md b/AGENTS.md index 1ef6af2ba0..cce6c18af3 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -22,7 +22,7 @@ packages/ Harness packages at packages///, all named @deepseek-ai guard/ loop-hygiene plugins hooks/ Claude Code / Codex hook bridges + shared wire-protocol library session-persistence/ persistence seam + JSONL/SQLite backends - ui/ ACP bridge + app-boot glue + the stdio/ACP app bins + ui/ ACP bridge, app-boot glue, stdio/ACP app bins, user-interaction seam, ask-user tool support/ dev/test infrastructure packages util/ zero-dependency utilities examples/ Runnable demos: thin cordis.yml leaves over the app packages (see examples/AGENTS.md) diff --git a/packages/README.md b/packages/README.md index bc09826777..220941272a 100644 --- a/packages/README.md +++ b/packages/README.md @@ -21,7 +21,7 @@ Packages are grouped by modular role at `packages///`. The group dir | [`guard/`](guard/README.md) | Loop-hygiene guards: advisory repeat-call reminders | Product — stable surface | | [`hooks/`](hooks/README.md) | Hook bridges + the shared Claude Code / Codex wire-protocol library | Product — stable surface | | [`session-persistence/`](session-persistence/README.md) | Persistence capability family: the seam + JSONL/SQLite backends | Product — stable surface | -| [`ui/`](ui/README.md) | Editor/client integration surfaces (the ACP bridge) + the app packages | Product — stable surface | +| [`ui/`](ui/README.md) | Editor/client integration surfaces: ACP bridge, app packages, user-interaction seam, ask-user tool | Product — stable surface | | [`support/`](support/README.md) | Dev/test/example infrastructure (invariants, replay adapter, subagent mock) | Support — lower compatibility expectations | | [`util/`](util/README.md) | Low-level zero-dependency utilities shared across groups (the `Branded` primitive) | Support — small, stable, harness-dep-free | From db857f62c08404e6767917163a191cdfdba29b1d Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 18:51:44 +0800 Subject: [PATCH 136/232] docs(tool-cordis): state the sandbox stance as steering, not containment MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The sandbox docs overclaimed a containment contract the design never makes: "capability access is routed through cordis services, never Node built-ins, so everything a mounted plugin does stays inspectable and disposable". The host-realm helpers on the sandbox global (harness, console, btoa) are reachable functions, so mount code that goes looking can reach the host realm through one of them — accepted under the trust stance, because the ctx a mount ultimately receives is fully privileged anyway. Reword the sandbox module doc, the README trust stance, and the RFC sandbox-semantics section to say exactly that: the traps and small global surface STEER honest code onto the cordis services; they are not a security boundary. --- .../2026-07-08-self-referential-cordis-toolset.md | 2 +- packages/cordis/tool-cordis/README.md | 2 +- packages/cordis/tool-cordis/src/sandbox.ts | 13 ++++++++----- 3 files changed, 10 insertions(+), 7 deletions(-) diff --git a/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md b/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md index fff36fee91..8a43c271c3 100644 --- a/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md +++ b/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md @@ -26,7 +26,7 @@ The trust stance, stated once and threaded through the rest: the `node:vm` sandb ### Sandbox semantics -Mount code runs via `vm.createContext` + `runInContext`, wrapped as the body of an async function under a per-mount filename (`cordis-mount-.js`). The vm gives the code a fresh realm: writes to `globalThis` stay inside the sandbox, and no Node API is provided — capability access is routed through the cordis services (`ctx.fs` for files, `ctx.web` for HTTP, `ctx.bash` for processes, the `ctx.timer` helpers for timing), never Node built-ins, so everything a mounted plugin does stays inspectable through `cordis_inspect` and disposable with its fiber. The `vmTimeoutMs` config bounds only the synchronous portion of evaluation; an async body escapes the bound (acceptable under the trust stance above). +Mount code runs via `vm.createContext` + `runInContext`, wrapped as the body of an async function under a per-mount filename (`cordis-mount-.js`). The vm gives the code a fresh realm: writes to `globalThis` stay inside the sandbox, and no Node API is handed in — capability access is *steered* toward the cordis services (`ctx.fs` for files, `ctx.web` for HTTP, `ctx.bash` for processes, the `ctx.timer` helpers for timing) rather than Node built-ins, so a well-behaved mount stays inspectable through `cordis_inspect` and disposable with its fiber. This is steering, not containment: consistent with the trust stance above, the small global surface keeps *honest* code on the cordis services but is not a security boundary — the host-realm helpers it exposes (`harness`, `console`, `btoa`) are reachable functions, so mount code that goes looking (through such a helper's `.constructor`, say) can still reach the host realm and Node itself, which is accepted because the `ctx` a mount ultimately receives is fully privileged anyway. The `vmTimeoutMs` config bounds only the synchronous portion of evaluation; an async body escapes the bound (also acceptable under the trust stance). Sandbox globals are deliberately small: a tagged write-through `console` (`[cordis:] …` on the host stdout/stderr, so a listener that fires long after the mount call still lands somewhere the user sees), the `harness.defineTool` / `harness.registerTool` registration pair, the encoding primitives fresh vm contexts lack (`btoa`/`atob` as host closures over `Buffer` — a sanctioned exception, `Buffer` itself is never exposed — plus `TextEncoder`/`TextDecoder`), and callable traps over the withheld Node APIs (`require`, `setTimeout`/`setInterval`/`setImmediate`/`clearTimeout`/`clearInterval`, `fetch`) that throw a redirect naming the cordis alternative. Only function-shaped globals are trapped; `process` and `Buffer` stay `undefined` so a `typeof` feature probe stays inert rather than detonating a throwing accessor. diff --git a/packages/cordis/tool-cordis/README.md b/packages/cordis/tool-cordis/README.md index 651f3273d9..c4f3cf11b9 100644 --- a/packages/cordis/tool-cordis/README.md +++ b/packages/cordis/tool-cordis/README.md @@ -12,7 +12,7 @@ Exact model-facing schemas: [the generated tool catalog](../../../docs/tool-cata ## Trust stance -The sandbox isolates the global context only — it is not a security boundary. No Node API is provided: `require`, the timers, and `fetch` are callable traps that throw a redirect to the cordis alternative (`ctx.fs` / `ctx.web` / `ctx.bash` / `inject: ['timer']` + `ctx.setTimeout`); `process` and `Buffer` are `undefined`; `globalThis` writes stay inside. The `ctx` a mounted plugin's `apply` receives is a whitelist façade — register tools, observe events, provide/consume services, use timers; framework internals (`ctx.root`, `ctx.fiber`, `ctx.extend`, `ctx.plugin`, …) are withheld — but the capabilities it does expose reach the real runtime, so load this plugin as deliberately as you would grant a bash tool. +The sandbox isolates the global context only — it is not a security boundary. No Node API is provided: `require`, the timers, and `fetch` are callable traps that throw a redirect to the cordis alternative (`ctx.fs` / `ctx.web` / `ctx.bash` / `inject: ['timer']` + `ctx.setTimeout`); `process` and `Buffer` are `undefined`; `globalThis` writes stay inside. These traps steer honest code onto the cordis services; they do not contain a mount that goes looking — the host-realm helpers on the sandbox global (`harness`, `console`, `btoa`) are reachable functions, so mount code can reach the host realm and Node through one of them, which is fine because `ctx` is fully privileged anyway. The `ctx` a mounted plugin's `apply` receives is a whitelist façade — register tools, observe events, provide/consume services, use timers; framework internals (`ctx.root`, `ctx.fiber`, `ctx.extend`, `ctx.plugin`, …) are withheld — but the capabilities it does expose reach the real runtime, so load this plugin as deliberately as you would grant a bash tool. ## Config diff --git a/packages/cordis/tool-cordis/src/sandbox.ts b/packages/cordis/tool-cordis/src/sandbox.ts index add858f3ce..5ed6b52b50 100644 --- a/packages/cordis/tool-cordis/src/sandbox.ts +++ b/packages/cordis/tool-cordis/src/sandbox.ts @@ -6,11 +6,14 @@ * routed through cordis services, never Node built-ins: filesystem work goes * through `ctx.fs`, network through `ctx.web`, processes through `ctx.bash`, * timers through the `ctx.timer` helpers (fiber effects, unwound on unmount) - * — so everything a mounted plugin does stays inspectable and disposable. The - * sandbox guards against ACCIDENTAL global pollution only — it is not a - * security boundary; the `ctx` a mounted plugin's `apply` later receives is - * the real, fully privileged runtime handle, and that is the point of the - * toolset. + * — so a well-behaved mount stays inspectable and disposable. That routing is + * STEERING toward the cordis services, not containment: the sandbox guards + * against ACCIDENTAL global pollution, and it is not a security boundary. The + * host-realm helpers on the sandbox global (`harness`, `console`, `btoa`) are + * reachable functions, so a mount that goes looking — e.g. through such a + * helper's `.constructor` — can still reach the host realm; that is accepted, + * because the `ctx` a mounted plugin's `apply` later receives is the real, + * fully privileged runtime handle, and that is the point of the toolset. * * @module @deepseek-ai/dsh-tool-cordis/sandbox */ From f1e54d737b9efc44216020942d468683ac9ebf63 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 19:30:49 +0800 Subject: [PATCH 137/232] =?UTF-8?q?fix(tool-cordis):=20pass=20primitive=20?= =?UTF-8?q?provided=20service=20values=20through=20the=20fa=C3=A7ade?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit cordis provide() accepts any value and cross-mount composition advertises ctx.provide('name', value), but the façade's readService unconditionally proxied every declared service — new Proxy('42') throws "Cannot create proxy with a non-object as target or handler", so a consumer of a primitive-valued service crashed on first read with an error naming neither the service nor the fix. A primitive or null value now passes through unwrapped (after the denyContext check); only object- and function-valued services are proxied — a primitive has no method that could hand back a Context, so nothing is lost. New cross-mount spec pins both read paths (ctx. and ctx.get) for a number and a null provided value. --- packages/cordis/tool-cordis/src/guard.ts | 15 ++++++-- .../tool-cordis/tests/cross-mount.spec.ts | 38 +++++++++++++++++++ 2 files changed, 49 insertions(+), 4 deletions(-) diff --git a/packages/cordis/tool-cordis/src/guard.ts b/packages/cordis/tool-cordis/src/guard.ts index b124f6781f..90eaaec41b 100644 --- a/packages/cordis/tool-cordis/src/guard.ts +++ b/packages/cordis/tool-cordis/src/guard.ts @@ -9,8 +9,9 @@ * The façade is a WHITELIST, not a pass-through proxy. Mount code needs to do * exactly four things — register a tool, listen to an event, provide a service, * call an injected service (timers included) — so the façade exposes only those - * verbs and the injected services, each individually wrapped. Every framework - * plumbing member (`root`, `parent`, `scope`, `fiber`, `reflect`, `registry`, + * verbs and the injected services, each object-valued service individually + * wrapped (a primitive provided value passes through as-is — see + * {@link sandboxContext}). Every framework plumbing member (`root`, `parent`, `scope`, `fiber`, `reflect`, `registry`, * `events`, `extend`, `isolate`, `intercept`, `plugin`, `set`, `mixin`, …) is * DENIED with a teaching error rather than passed through. This closes an * entire escape class at once: a pass-through proxy that only special-cased @@ -284,11 +285,17 @@ function sandboxContext(ctx: Context): Context { // error; a DECLARED one resolves to the guarded service. A declared inject // is required in cordis (the fiber only activates once every declared // service is live), so at `apply`/`execute` time `ctx.get(name)` is present - // for a declared name — no undefined case to handle here. + // for a declared name — no undefined case to handle here. `provide()` + // accepts ANY value though (cross-mount composition advertises + // `ctx.provide('name', value)`), so a primitive or null value passes + // through unwrapped: Proxy throws on a non-object target, and only an + // object can carry a method that hands back a Context. const readService = (name: string): unknown => { if (name === 'tools') return tools if (!declared.has(name)) return denyRead(name) - return guardedService(ctx.get(name) as object, name) + const service = denyContext(ctx.get(name), name) + if (service === null || (typeof service !== 'object' && typeof service !== 'function')) return service + return guardedService(service, name) } const get = (name: string): unknown => readService(name) return new Proxy({}, { diff --git a/packages/cordis/tool-cordis/tests/cross-mount.spec.ts b/packages/cordis/tool-cordis/tests/cross-mount.spec.ts index f68eaef639..dcfdb815c4 100644 --- a/packages/cordis/tool-cordis/tests/cross-mount.spec.ts +++ b/packages/cordis/tool-cordis/tests/cross-mount.spec.ts @@ -91,6 +91,44 @@ describe('cross-mount provide/inject', () => { expect(api).toContain('- greeter (provided by greeter-provider, no catalog entry)') }) + it('a primitive (or null) provided value passes through the façade unwrapped, on both read paths', async () => { + const ctx = await setup() + const provider = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'answer-provider', + apply(ctx) { + ctx.provide('answer', 42) + ctx.provide('nothing', null) + }, + } + `, + }) + expect(provider.isError).toBe(false) + + const consumer = await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'answer-consumer', + inject: ['answer', 'nothing', 'tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'answer', + description: 'Read the provided primitive services.', + parameters: {}, + async execute() { + return [{ type: 'text', text: ctx.answer + '/' + ctx.get('answer') + '/' + ctx.nothing }] + }, + })) + }, + } + `, + }) + expect(consumer.isError).toBe(false) + expect(text(consumer)).toContain('state: active') + expect(text(await call(ctx, 'answer', {}))).toBe('42/42/null') + }) + it('unmounting the consumer leaves the provider and its service intact', async () => { const ctx = await setup() await call(ctx, 'cordis_mount', { code: PROVIDER_CODE }) // dyn-1 From b5f618bcfb1ddd95adc82f2f0bac88e4ace52bb3 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 18:39:31 +0800 Subject: [PATCH 138/232] workflow: swap the engine's internals to node:worker_threads MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In-place port of dsh-workflow-vm from the in-process node:vm execution to one worker thread per run (the workflow-workerthread engine of PR #215, adopted as THE engine): the script's vm context moves inside the worker, agent() bridges to ctx.subagents over the message port (host.ts/protocol.ts/session.ts/worker.ts are new; runtime.ts loses the abandon channel — the host's grace timer force-settles and TERMINATES instead), start() pre-parses the body host-side to keep the seam's synchronous SCRIPT_PARSE throw, and a ready→go handshake keeps a run cancelled before start from ever executing the body. start() no longer blocks the host, termination is real, and the value boundary is serialization by construction. The package keeps its name until the follow-up rename commit; scripts see the identical hook surface, and the seam-contract tests hardened ahead of this swap pass unchanged. The run and child-RPC surfaces are class-shaped rather than literal bundles: WorkerRun IMPLEMENTS the seam's WorkflowRun (id/meta are its own clone, separate from event payloads') and start() returns the instance directly — interface parity with the seam is compiler-checked; worker-side, ChildRpcBridge (implements ChildPort; callId allocation + pending book-keeping settled by onChild* entry points) and RpcChildHandle (every member an RPC keyed by its callId) carry names in stacks. ChildPort's method is startAgent — it names what it starts, matching the script-side agent() hook and the agentsStarted / workflow/agent-* vocabulary; the Child* type names deliberately stay (the worker side is cordis- and subagent-free; these are reduced JSON projections, not the seam's types). Review findings from the reference PR are folded in rather than re-introduced: - cancel() drives BOTH child-cancel channels host-side: the request signal aborts AND each registered child's explicit cancel() is called — a worker wedged in a synchronous spin cannot relay its own ChildCancel RPCs (regression: cancel-only provider + wedged worker). - All host warn paths render through the total renderThrown; a child dispose() rejecting a value whose coercion throws still acks ChildDisposed instead of wedging the script's finally (regression). - built-worker.e2e.ts is wired into builtBinSmokeGate and the AGENTS.md CI sequence — the built lib/worker.js resolution contract now runs in an automated gate. - workflow/end payload pinned on the worker-death path (with the cancelled and grace-force-settle pins riding the ported spec). - Real-Worker scripted timing budgets widened (50-300ms → 150-1000ms) for starved CI hosts. Workspace plumbing: the "./worker" subpath export sanctions the second runtime bundle (check-workspace-constraints), tsdown builds two single-entry passes, tsx becomes a devDependency for the unbuilt worker spawn. --- AGENTS.md | 2 +- .../tool-workflow/tests/tool-workflow.spec.ts | 6 +- packages/workflow/workflow-vm/README.md | 36 +- packages/workflow/workflow-vm/package.json | 10 +- packages/workflow/workflow-vm/src/host.ts | 384 +++++++ packages/workflow/workflow-vm/src/index.ts | 184 ++-- packages/workflow/workflow-vm/src/protocol.ts | 115 ++ packages/workflow/workflow-vm/src/realm.ts | 27 +- packages/workflow/workflow-vm/src/runtime.ts | 264 ++--- packages/workflow/workflow-vm/src/session.ts | 210 ++++ packages/workflow/workflow-vm/src/types.ts | 97 ++ packages/workflow/workflow-vm/src/worker.ts | 18 + .../workflow-vm/tests/built-worker.e2e.ts | 56 + .../workflow-vm/tests/integration.spec.ts | 14 +- .../workflow-vm/tests/session.spec.ts | 504 +++++++++ .../workflow-vm/tests/workflow-vm.spec.ts | 990 +++++++----------- .../workflow-vm/tests/workflow.e2e.ts | 55 +- .../workflow/workflow-vm/tsdown.config.ts | 32 + pnpm-lock.yaml | 3 + scripts/check-workspace-constraints.ts | 15 +- scripts/run-gates.ts | 4 + 21 files changed, 2073 insertions(+), 953 deletions(-) create mode 100644 packages/workflow/workflow-vm/src/host.ts create mode 100644 packages/workflow/workflow-vm/src/protocol.ts create mode 100644 packages/workflow/workflow-vm/src/session.ts create mode 100644 packages/workflow/workflow-vm/src/types.ts create mode 100644 packages/workflow/workflow-vm/src/worker.ts create mode 100644 packages/workflow/workflow-vm/tests/built-worker.e2e.ts create mode 100644 packages/workflow/workflow-vm/tests/session.spec.ts create mode 100644 packages/workflow/workflow-vm/tsdown.config.ts diff --git a/AGENTS.md b/AGENTS.md index fc33e2f049..eb34d404a0 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -70,7 +70,7 @@ printf '%s\n' "$out" | grep -q '\[tool call\] echo({"text":"ci smoke"})' printf '%s\n' "$out" | grep -q '\[tool result\] ECHO: CI SMOKE' ls .sessions/_no-cwd/main-session-*.jsonl >/dev/null rm -rf .sessions -pnpm exec vitest run --config vitest.e2e.config.ts packages/ui/stdio-agent/tests/built-bin.e2e.ts packages/ui/acp-agent/tests/built-bin.e2e.ts +pnpm exec vitest run --config vitest.e2e.config.ts packages/ui/stdio-agent/tests/built-bin.e2e.ts packages/ui/acp-agent/tests/built-bin.e2e.ts packages/workflow/workflow-vm/tests/built-worker.e2e.ts ``` `test:coverage`, not `test`, is the gating run ([why](docs/testing.md)); a sign-off counts only for commands actually run. diff --git a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts index 68daecbe37..2b6503cd45 100644 --- a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts +++ b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts @@ -10,7 +10,7 @@ import { WorkflowRunId, WorkflowService } from '@deepseek-ai/dsh-workflow' import type { WorkflowResult, WorkflowRun, WorkflowStartRequest } from '@deepseek-ai/dsh-workflow' import { CallId } from '@deepseek-ai/dsh-llm' import SubagentService from '@deepseek-ai/dsh-subagent' -import VmWorkflowEngine from '@deepseek-ai/dsh-workflow-vm' +import WorkerWorkflowEngine from '@deepseek-ai/dsh-workflow-vm' import * as toolWorkflow from '../src/index.ts' /** A controllable engine standing in behind ctx.workflows (the tool's only seam). */ @@ -221,7 +221,7 @@ describe('dsh-tool-workflow', () => { expect(typeof unwrapped.apply).toBe('function') }) - describe('composition with the REAL vm engine (the mock above must stay honest)', () => { + describe('composition with the REAL worker-thread engine (the mock above must stay honest)', () => { it('an abort releases the tool even when the script parks on a promise no hook owns', async () => { // Regression for the review-found turn wedge: the tool awaits // run.result BEFORE its disposing finally, the registry and the loop @@ -234,7 +234,7 @@ describe('dsh-tool-workflow', () => { await ctx.plugin(SystemPrompt) await ctx.plugin(ToolRegistry) await ctx.plugin(SubagentService) - await ctx.plugin(VmWorkflowEngine, { disposeGraceMs: 30 }) + await ctx.plugin(WorkerWorkflowEngine, { disposeGraceMs: 30 }) await ctx.plugin(toolWorkflow, {}) const parent = { id: AgentId('caller'), options: {} } as unknown as Agent const controller = new AbortController() diff --git a/packages/workflow/workflow-vm/README.md b/packages/workflow/workflow-vm/README.md index e29073c2b3..9a0ab21fef 100644 --- a/packages/workflow/workflow-vm/README.md +++ b/packages/workflow/workflow-vm/README.md @@ -1,34 +1,48 @@ # @deepseek-ai/dsh-workflow-vm -The first [`WorkflowService`](../workflow/README.md) implementation: an in-process **`node:vm` engine**. It parses the Claude Code-format script (`export const meta = {...}` + plain-JS body), runs the body in a fresh vm context with the workflow hooks injected, and fans `agent()` calls out to [`ctx.subagents`](../../subagent/README.md). +The [`WorkflowService`](../workflow/README.md) implementation, on **`node:worker_threads`**: each run gets its OWN worker thread (one run = one worker, no pooling — a run is heavyweight, so the ~tens-of-ms thread spin-up is noise), the script executes in a vm context INSIDE that worker with the workflow hooks injected, and every `agent()` call bridges back over the message port to [`ctx.subagents`](../../subagent/README.md) on the host. Child agents are I/O-bound LLM loops and stay on the host event loop; the thread isolates the SCRIPT, the only part that can spin synchronously. -## Trust premise +## Trust premise: what the thread buys (and what it does not) -Workflow scripts are **model-written** — the same trust level as the model's existing bash access — so this engine defends against **buggy** scripts, never hostile ones. vm is NOT a security boundary and no attempt is made to contain adversarial values: property reads on script values may run script code (a getter, a `toString`, a proxy trap) on the host stack, and a script determined to hang the process can simply spin past its first await (see the limitations below). Concretely, the context is **escapable by construction**: `node:vm` shares object machinery with the host, so a script can reach the host `Function` constructor (`globalThis.constructor.constructor`) and from it `process` and every Node builtin — the absent globals are API surface that keeps honest scripts portable, not walls. What the engine DOES guarantee, because benign scripts hit these constantly: `result` never rejects, a dropped hook promise never becomes an unhandled rejection (the app boot layer exits the process on those), values that JSON cannot carry are rejected **loud** instead of silently mangled, and hook misuse is fatal instead of dissolving into a per-item `null`. Genuine sandboxing is an engine swap behind the seam (worker-thread/isolated-vm, where the boundary is serialization by construction), not incremental host-side defenses here. +Workflow scripts are **model-written** — the same trust level as the model's existing bash access — so this engine defends against **buggy** scripts, never hostile ones. A worker thread is NOT a security boundary: the vm context inside it is escapable by construction (`node:vm` shares object machinery with its surrounding realm, so a script can reach the `Function` constructor via `globalThis.constructor.constructor` and from it `process` and every Node builtin), and an escapee holds the same process privileges as the host — Node's permission model is process-wide. The absent globals are API surface that keeps honest scripts portable, not walls. What the thread concretely buys: + +- **The host never blocks**: `start()` returns without running any script code on the host; a synchronous spin anywhere in the script occupies the worker's loop, not the harness's. +- **Termination is real**: a script that outlives its post-cancel grace is `worker.terminate()`d — nothing of it survives `dispose()`, where an in-process engine could only abandon the spin on its own loop. +- **Serialization by construction**: everything crossing the thread is structured-clone data, and plain JSON before that — the `materializeFromRealm` walk rejects loud what JSON cannot carry, which is also what makes every postMessage hop total. + +What the seam guarantees regardless, because benign scripts hit these constantly: `result` never rejects, a dropped hook promise never becomes an unhandled rejection, values JSON cannot carry are rejected **loud** instead of silently mangled, and hook misuse is fatal instead of dissolving into a per-item `null`. Genuine sandboxing (containing what an escaped script may touch) remains an isolated-vm/separate-process engine swap behind the seam, still deferred. ## The script contract it executes -- **Meta extraction** (`extractMeta`): a string/comment-aware brace scanner finds the leading `export const meta` literal (template interpolation rejected — the literal must be pure), evaluates it ALONE in an empty timed vm context, materializes the result to plain JSON data, validates the shape (`name`/`description` required; unknown fields rejected loud), and blanks the statement line-preservingly so error stacks keep the script's own line numbers. +- **Meta extraction** (`extractMeta`, host-side): a string/comment-aware brace scanner finds the leading `export const meta` literal (template interpolation rejected — the literal must be pure), evaluates it ALONE in an empty timed vm context, materializes the result to plain JSON data, validates the shape (`name`/`description` required; unknown fields rejected loud), and blanks the statement line-preservingly so error stacks keep the script's own line numbers. - **Hooks**: `agent(prompt, {label, phase, schema, model})` (schema = the [structured-output subset](../../core/tools/README.md), forwarded as `outputSchema`; result = validated object, or final text without a schema; a failed child resolves `null`), `parallel(thunks)`, `pipeline(items, ...stages)` with NO cross-stage barrier and `(prev, item, index)` stage callbacks, `phase(title)`, `log(message)`, and the `args` global. Anything else — `effort`/`isolation`/`agentType`, unknown options, malformed arguments, schemas outside the subset — throws a FATAL `WorkflowError` that `parallel`/`pipeline` re-throw rather than nulling (see the seam README's failure discipline). - **No ambient APIs**: no timers, filesystem, or Node APIs are injected into the context (absence is API surface, not containment — see the trust premise). +## How a run executes + +`start()` extracts and validates the meta HOST-side and parse-checks the body with the identical wrapper the worker compiles (`new vm.Script`, discarded), preserving the seam's synchronous `SCRIPT_PARSE`/`META_INVALID` throws; one redundant parse per run is the deliberate price. It then spawns the worker (`src/worker.ts` unbuilt via an explicit tsx `execArgv`; the sibling `lib/worker.js` bundle when built) with the meta, blanked body, `args`, and worker-side limits as `workerData`. + +Inside the worker, `runWorkerSession` builds the execution core (hooks, combinators, concurrency semaphore, caps, fatal-error discipline) over a **child port**: `agent()` sends `child-start` and the host starts the child on `ctx.subagents` (parent attribution, the shared per-run abort signal, `outputSchema`/`model` pass-through), replying with the child id, its settlement (a JSON projection; an infrastructure REJECTION crosses as `child-failed` and stays the fatal `AGENT_RESULT`), and dispose acks. Observer narration (`phase`/`log`/`agent-start`/`agent-end`) crosses as messages and re-emits as the seam's `workflow/*` events. A **ready→go handshake** gates the body: a cancellation racing worker boot arrives before `go`, so a run cancelled before start never executes the body at all. + ## The value boundary -Values ENTERING the host (the meta literal, hook options/schemas, the script's return) are materialized by `materializeFromRealm`: a plain recursive walk that rejects loud everything JSON cannot carry (exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`), copying into host containers via `defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Getters are read ordinarily — the RESULT is what crosses; a read that throws fails loud. Values ENTERING the realm (`args`, `agent()` results, hook promises and their failures, combinator arrays) are handed over directly as host values — the script is trusted, so host prototypes are not a leak; `args` is `structuredClone`d once at start so a script scribbling on it cannot mutate the caller's object. One script-visible consequence: an error thrown by a hook is a HOST error, so `e instanceof Error` inside the script is `false` — branch on `e.name`/`e.code` instead (the combinators recognize fatality by host `instanceof`, which a script-built object can never pass, so fatal-vs-null cannot be forged or dissolved). +Values LEAVING the script (the meta literal, hook options/schemas, the script's return) are materialized by `materializeFromRealm`: a plain recursive walk that rejects loud everything JSON cannot carry (exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`), copying into plain containers via `defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Getters are read ordinarily — the RESULT is what crosses; a read that throws fails loud. Values ENTERING the realm (`args`, `agent()` results, hook promises and their failures, combinator arrays) are handed over directly as worker-realm values — the script is trusted, so outer prototypes are not a leak; `args` is cloned once at start so a script scribbling on it cannot mutate the caller's object. One script-visible consequence: an error thrown by a hook is built OUTSIDE the script's vm context, so `e instanceof Error` inside the script is `false` — branch on `e.name`/`e.code` instead (the combinators recognize fatality by `instanceof` against their own realm's class, which a script-built object can never pass, so fatal-vs-null cannot be forged or dissolved). -## Limits, cancellation, disposal +## Cancellation, death, disposal -Per-run: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` aborts every child (a shared `AbortSignal`), rejects waiting `agent()` slots, and makes every future hook call throw `CANCELLED` — the script dies at its next await and the run settles `cancelled`; a cancellation that lands before the body runs (or before it settles) reports `cancelled` even if the script itself needed no hooks, and a script that STILL has not settled `disposeGraceMs` after the cancel (parked on a promise no hook owns, like `await new Promise(() => {})`) is ABANDONED with `result` force-settling `cancelled` — a consumer awaiting `result` is never wedged past a cancellation. Once a run settles, stray children a script fired without awaiting are aborted too, and `dispose()` waits for those children to finish disposing (bounded by the grace) before returning. Every hook-returned promise carries a no-op rejection consumer, so a dropped promise cannot surface an unhandled rejection; thrown script values are rendered by a total host-side renderer (stack, then message, then `String()`, with a fixed label if rendering itself throws) — `result` cannot reject. +Per-run limits: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` posts the cancel to the worker (its hooks start throwing `CANCELLED`; the script dies at its next await) and cancels every host-side child NOW on **both seam channels** — the shared request signal aborts AND each registered child's explicit `cancel()` is called host-side, because the seam leaves a provider free to honor either channel and a worker wedged in a synchronous spin could not relay its own per-child cancel RPCs (those later land as idempotent no-ops). The grace then arms: a run still unsettled `disposeGraceMs` later force-settles `cancelled` and the worker is **terminated**. A cancellation that lands before the body runs (the ready→go handshake) reports `cancelled` without executing anything; a worker `result` racing an in-flight host cancellation reports `cancelled` too (first-wins settlement — the seam-visible result had not settled when cancellation was requested); post-cancel `phase`/`log` narration is suppressed host-side, while cancelled children still deliver their paired `agent-end`. -**Documented limitations** (the accepted cost of the in-process mechanism; the seam exists so a worker-thread/isolated-vm engine can swap in): `start()` runs the script's initial synchronous slice inline, so the caller blocks until the first await or the vm `timeout`; that `timeout` covers ONLY the initial slice, so a synchronous spin past it (an await continuation, a thenable's `then` invoked by promise resolution, or script code the host runs while rendering a thrown value) cannot be killed; `dispose()` waits `disposeGraceMs` then ABANDONS such a script (its settlement stays contained, but an abandoned spin would still occupy the event loop). A returned promise or thenable resolves per JavaScript semantics BEFORE materialization — that is what makes an un-awaited `return agent('x')` work — and the value-boundary guard applies to the resolution. +A worker that dies unexpectedly (an OOM, a script reaching `process.exit` through the documented vm escape) settles the run `stopReason: 'error'` with the exit diagnostics — or `'cancelled'` when a cancel was in flight — and the host-side child registry is what winds every surviving child down. `dispose()` = cancel + bounded wait (result, then child-registry quiescence, capped by the grace) + unconditional `worker.terminate()`: the thread never outlives its run. Once a run settles, stray children a script fired without awaiting are cancelled too, and `dispose()` waits for their disposal (bounded by the grace) before returning. + +**Engine-specific limitations**: worker startup is paid per run; on a termination path `agentsStarted` reports the HOST-observed count (accepted `child-start`s — calls still queued worker-side for a concurrency slot are unknowable then); and a returned promise or thenable resolves per JavaScript semantics BEFORE materialization — that is what makes an un-awaited `return agent('x')` work — with the value-boundary guard applying to the resolution. ## Config | Key | Default | Meaning | |---|---|---| -| `provider` | `spawn` | The `ctx.subagents` provider children run on. | +| `provider` | `spawn` | The `ctx.subagents` provider children run on (host-side). | | `maxConcurrentAgents` | `0` (auto) | Concurrent `agent()` ceiling; `0` resolves to `min(16, max(1, cores - 2))`. | | `maxTotalAgents` | `1000` | Total `agent()` calls one run may start (runaway-loop backstop). | | `maxItemsPerCall` | `4096` | Items accepted by one `parallel()`/`pipeline()` call. | -| `syncTimeoutMs` | `5000` | vm timeout for the initial synchronous slice and the meta evaluation. | -| `disposeGraceMs` | `5000` | How long `dispose()` waits for a cancelled script and its children before abandoning them. | +| `syncTimeoutMs` | `5000` | vm timeout for the initial synchronous slice (in the worker) and the host-side meta evaluation. | +| `disposeGraceMs` | `5000` | How long a cancelled run may stay unsettled before force-settle + terminate; also bounds `dispose()`. | diff --git a/packages/workflow/workflow-vm/package.json b/packages/workflow/workflow-vm/package.json index 8b1217acc0..a174893b9c 100644 --- a/packages/workflow/workflow-vm/package.json +++ b/packages/workflow/workflow-vm/package.json @@ -1,6 +1,6 @@ { "name": "@deepseek-ai/dsh-workflow-vm", - "description": "node:vm workflow engine: executes model-written orchestration scripts over ctx.subagents", + "description": "worker-thread workflow engine: executes model-written orchestration scripts off the host event loop, bridging agent() calls back to ctx.subagents", "version": "0.0.1", "private": true, "type": "module", @@ -11,11 +11,16 @@ "types": "./lib/types/index.d.ts", "default": "./lib/index.js" }, + "./worker": { + "types": "./lib/types/worker.d.ts", + "default": "./lib/worker.js" + }, "./src/*": "./src/*", "./package.json": "./package.json" }, "files": [ "lib/index.js", + "lib/worker.js", "lib/types/**/*.d.ts", "lib/types/**/*.d.ts.map", "src" @@ -45,6 +50,7 @@ "@deepseek-ai/dsh-system-prompt": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", "@deepseek-ai/dsh-workflow": "workspace:^", - "cordis": "^4.0.0-rc.6" + "cordis": "^4.0.0-rc.6", + "tsx": "^4.19.2" } } diff --git a/packages/workflow/workflow-vm/src/host.ts b/packages/workflow/workflow-vm/src/host.ts new file mode 100644 index 0000000000..b329e0c7d2 --- /dev/null +++ b/packages/workflow/workflow-vm/src/host.ts @@ -0,0 +1,384 @@ +/** + * The host half of one worker-engine run: spawn the Worker, bridge its child + * RPC onto `ctx.subagents`, fan its observer messages into the engine's + * events, and own cancellation, the settle-within-grace guarantee, and child + * cleanup. The worker's lifetime IS the run's lifetime: `dispose()` always + * ends with `worker.terminate()`, so no thread outlives its run. + * + * The run's `result` promise settles exactly once, from whichever of these + * lands first: the worker's `result` message (a host-side cancellation in + * flight overrides a non-cancelled report — the seam-visible result had not + * settled when cancellation was requested), an unexpected worker death + * (`error`/`messageerror`/premature `exit` → `stopReason: 'error'`, or + * `'cancelled'` when a cancel was in flight), or the post-cancel grace timer + * (a script that never settles is force-settled `cancelled` and its worker + * terminated — the real kill an in-process engine could not perform). + * + * Children live in a host-side registry (callId → run): the worker drives + * their disposal by RPC on the graceful path, and the registry is what lets + * the host abort and dispose every survivor when the worker dies or is + * terminated mid-flight. On a termination path `agentsStarted` reports the + * HOST-observed count (accepted `child-start` messages) — `agent()` calls + * still queued worker-side for a concurrency slot are unknowable then; the + * worker's own count rides the result message on every graceful path. + * + * @module @deepseek-ai/dsh-workflow-vm/host + */ + +import { fileURLToPath } from 'node:url' +import { Worker } from 'node:worker_threads' +import type { WorkerOptions } from 'node:worker_threads' +import type { Context } from 'cordis' +import type { Agent } from '@deepseek-ai/dsh-agent' +import { assertNever } from '@deepseek-ai/dsh-llm' +import type { SubagentRun } from '@deepseek-ai/dsh-subagent' +import type { WorkflowMeta, WorkflowResult, WorkflowRun, WorkflowRunId } from '@deepseek-ai/dsh-workflow' +import { renderThrown } from './realm.ts' +import type { ExecutionObserver } from './runtime.ts' +import { HostToWorkerType, WorkerToHostType } from './protocol.ts' +import type { HostToWorkerPayloads, WorkerToHostMessage } from './protocol.ts' +import type { ChildStartRequest, WorkerInit } from './types.ts' + +/** + * Resolve the worker entry and spawn options for the current runtime shape. + * Unbuilt (tsx demos, vitest — `import.meta.url` points into `src/`), the + * entry is the TypeScript sibling and the worker needs the tsx loader + * registered explicitly: a worker thread inherits no transform pipeline from + * vitest (vite transforms in-process, not via a node loader), and passing + * execArgv explicitly also shields the worker from any loader flags the + * parent was started with. Built (`lib/index.js`), the entry is the sibling + * bundle the package tsdown config emits and no loader is needed. + * @param init - the run payload, passed as `workerData`. + * @returns the entry URL and the Worker options to spawn it with. + */ +function resolveWorkerSpawn(init: WorkerInit): { entry: URL; options: WorkerOptions } { + /* v8 ignore next 3 -- the built-output arm: tests always run unbuilt (src/); the built-worker e2e exercises this shape for real */ + if (!import.meta.url.endsWith('.ts')) { + return { entry: new URL('./worker.js', import.meta.url), options: { workerData: init } } + } + // Lazy tsx resolution: only the unbuilt shape needs it, so the built + // bundle never requires tsx to be installed. + return { + entry: new URL('./worker.ts', import.meta.url), + options: { workerData: init, execArgv: ['--import', fileURLToPath(import.meta.resolve('tsx'))] }, + } +} + +/** + * One live worker-engine run — the seam's {@link WorkflowRun}, returned by + * `start()` directly. Owns the Worker, the child registry, and the result + * settlement; `result` never rejects. `meta` is this handle's OWN clone + * (event payloads carry separate clones), so a consumer mutating it corrupts + * nothing. + */ +export class WorkerRun implements WorkflowRun { + /** Settles exactly once with the run's outcome; never rejects. */ + readonly result: Promise + private settleResolve!: (result: WorkflowResult) => void + private settled = false + private cancelReason: string | undefined + private graceTimer: NodeJS.Timeout | undefined + private readonly worker: Worker + /** Set on `exit`: the thread is gone, so posting has nowhere to go. */ + private workerGone = false + /** Accepted `child-start` messages — the terminate-path `agentsStarted` (see module doc). */ + private hostStarted = 0 + /** Live children by callId; an entry leaves ONLY after its dispose settles (quiescence = empty). */ + private readonly children = new Map() + private readonly quiescenceWaiters: (() => void)[] = [] + /** The per-run abort fanout every child start request carries. */ + private readonly controller = new AbortController() + private disposed: Promise | undefined + + constructor( + private readonly ctx: Context, + readonly id: WorkflowRunId, + readonly meta: WorkflowMeta, + private readonly parent: Agent, + init: WorkerInit, + private readonly provider: string, + private readonly disposeGraceMs: number, + private readonly observer: ExecutionObserver, + signal: AbortSignal | undefined, + ) { + this.result = new Promise((resolve) => { this.settleResolve = resolve }) + // workerData rides the structured clone: args are plain JSON by the seam + // contract, so the clone is total and doubles as the caller-isolation + // copy (a clone failure throws loud out of start()). + const { entry, options } = resolveWorkerSpawn(init) + this.worker = new Worker(entry, options) + this.worker.on('message', (message: WorkerToHostMessage) => { this.onMessage(message) }) + this.worker.on('error', (error) => { this.onWorkerDeath(`workflow worker failed: ${renderThrown(error)}`) }) + /* v8 ignore next -- messageerror: not constructible from the engine's own protocol (every payload is JSON data) */ + this.worker.on('messageerror', (error) => { this.onWorkerDeath(`workflow worker message failed to deserialize: ${renderThrown(error)}`) }) + this.worker.on('exit', (code) => { + this.workerGone = true + this.onWorkerDeath(`workflow worker exited before the run settled (exit code ${code})`) + }) + if (signal?.aborted) { + this.cancel('workflow start signal already aborted') + } else { + signal?.addEventListener('abort', () => { this.cancel('workflow signal aborted') }, { once: true }) + } + } + + /** + * Cancel the run: the worker is told (its hooks start throwing and the + * script dies at its next await), every host-side child is cancelled NOW on + * BOTH seam channels — the shared request signal aborts and each registered + * child's explicit `cancel()` is called (the seam leaves a provider free to + * honor either, and a worker wedged in a synchronous spin could not relay + * its own per-child cancel RPCs until far too late) — and the grace timer + * arms: a run still unsettled `disposeGraceMs` later force-settles + * `cancelled` and its worker is TERMINATED. Idempotent; the first reason + * wins. + * @param reason - human-readable cause (default `'workflow cancelled'`). + */ + cancel(reason?: string): void { + // A settled run has nothing left to cancel: without this guard the + // ordinary consumer path (await result, then dispose -> cancel) would arm + // a grace timer nothing ever clears, pinning the run and its Worker + // closure until the grace expires - a bounded leak per completed run. + if (this.settled || this.cancelReason !== undefined) return + this.cancelReason = reason ?? 'workflow cancelled' + this.post(HostToWorkerType.Cancel, { reason: this.cancelReason }) + this.controller.abort(this.cancelReason) + // The explicit channel is driven host-side, not left to the worker: a + // provider honoring only run.cancel() must not wait on a wedged worker's + // ChildCancel relay (those later RPCs land as idempotent no-ops). + for (const run of this.children.values()) run.cancel(this.cancelReason) + this.graceTimer = setTimeout(() => { + this.settleResult(this.cancelledResult(this.hostStarted)) + void this.worker.terminate() + }, this.disposeGraceMs) + // unref'd: an armed grace timer must never hold the process open. + this.graceTimer.unref() + } + + /** + * Cancel + bounded settle + termination. Waits (at most the grace) for the + * result and child quiescence, then terminates the worker unconditionally + * — the thread never outlives its run — and reaps whatever children + * remain (their disposal is contained, not awaited past the grace, the + * same abandonment the seam documents for a slow-disposing child). + * Idempotent; safe on every path. + * @returns resolves when the run's resources are released or abandoned. + */ + dispose(): Promise { + this.disposed ??= (async () => { + this.cancel('workflow disposed') + await Promise.race([ + (async () => { + await this.result + await this.childQuiescence() + })(), + sleep(this.disposeGraceMs), + ]) + await this.worker.terminate() + this.reapChildren('workflow disposed') + })() + return this.disposed + } + + /** Post one message to the worker (payload looked up from the tag's map entry), tolerating a thread that is already gone. */ + private post(type: T, payload: HostToWorkerPayloads[T]): void { + if (this.workerGone) return + try { + this.worker.postMessage({ type, ...payload }) + } catch (error: unknown) { + // Only a teardown race can land here (every engine message is JSON + // data, so serialization cannot fail); there is nothing left to + // deliver to — log and move on. + /* v8 ignore next -- postMessage teardown race (a throw between exit and its event): not constructible in-process */ + this.ctx.logger.warn(`workflow-vm: postMessage failed: ${renderThrown(error)}`) + } + } + + private onMessage(message: WorkerToHostMessage): void { + switch (message.type) { + case WorkerToHostType.Ready: + this.post(HostToWorkerType.Go, {}) + break + case WorkerToHostType.Phase: + // Post-cancel narration is suppressed host-side: worker-side the + // hooks throw once the cancel message is PROCESSED, but narration + // already in flight (or emitted while the cancel crossed the + // boundary) must not reach observers — nothing is emitted after + // cancel() returns. + if (this.cancelReason === undefined) this.observer.phase(message.title) + break + case WorkerToHostType.Log: + if (this.cancelReason === undefined) this.observer.log(message.message) + break + case WorkerToHostType.AgentStart: + this.observer.agentStart(message.info) + break + case WorkerToHostType.AgentEnd: + // NOT suppressed on cancel: cancelled children report their paired + // agent-end with outcome 'cancelled' (the one-pair-per-started-child + // contract holds on every stop path). + this.observer.agentEnd(message.info) + break + case WorkerToHostType.ChildStart: + this.onChildStart(message.callId, message.request) + break + case WorkerToHostType.ChildCancel: + this.children.get(message.callId)?.cancel(message.reason) + break + case WorkerToHostType.ChildDispose: + this.onChildDispose(message.callId) + break + case WorkerToHostType.Result: + this.onResult(message.result) + break + /* v8 ignore next 2 -- closed engine-owned union; the arm only makes adding a message type a compile error */ + default: + assertNever(message, 'worker-to-host message') + } + } + + private onChildStart(callId: number, request: ChildStartRequest): void { + if (this.cancelReason !== undefined) { + // The worker's start raced our cancel: refuse — a child must never + // start on an already-aborted signal (a provider subscribing only to + // future abort events would never observe it). + this.post(HostToWorkerType.ChildStartError, { callId, rendered: `workflow run cancelled: ${this.cancelReason}` }) + return + } + this.hostStarted += 1 + let run: SubagentRun + try { + run = this.ctx.subagents.start(this.provider, { + prompt: [{ type: 'text', text: request.prompt }], + parent: this.parent, + signal: this.controller.signal, + ...request.schema !== undefined ? { outputSchema: request.schema } : {}, + ...request.model !== undefined ? { agentOptions: { model: request.model } } : {}, + }) + } catch (error: unknown) { + this.post(HostToWorkerType.ChildStartError, { callId, rendered: renderThrown(error) }) + return + } + this.children.set(callId, run) + this.post(HostToWorkerType.ChildStarted, { callId, childId: run.id }) + run.result.then( + (result) => { + this.post(HostToWorkerType.ChildSettled, { + callId, + result: { + output: result.output, + ...result.structured !== undefined ? { structured: result.structured } : {}, + stopReason: result.stopReason, + }, + }) + }, + (error: unknown) => { this.post(HostToWorkerType.ChildFailed, { callId, rendered: renderThrown(error) }) }, + ) + } + + private onChildDispose(callId: number): void { + const run = this.children.get(callId) + /* v8 ignore next 5 -- dispose RPC for an already-reaped child: only a worker-death race can produce it, not orderable in-process */ + if (run === undefined) { + // Already reaped — the ack is still owed (the worker-side wrapper awaits it). + this.post(HostToWorkerType.ChildDisposed, { callId }) + return + } + void run.dispose().then( + () => { + this.finishChild(callId) + this.post(HostToWorkerType.ChildDisposed, { callId }) + }, + (error: unknown) => { + // The subagent seam's dispose() is not supposed to reject; a backend + // that does anyway must not wedge the script's finally (which awaits + // the ack) — ack and move on. + this.ctx.logger.warn(`workflow-vm: child dispose failed: ${renderThrown(error)}`) + this.finishChild(callId) + this.post(HostToWorkerType.ChildDisposed, { callId }) + }, + ) + } + + /** Drop a child from the registry, releasing quiescence waiters at zero. */ + private finishChild(callId: number): void { + this.children.delete(callId) + if (this.children.size === 0) { + for (const waiter of this.quiescenceWaiters.splice(0)) waiter() + } + } + + /** Resolves once the child registry is empty (every disposal settled). */ + private childQuiescence(): Promise { + if (this.children.size === 0) return Promise.resolve() + return new Promise((resolve) => { this.quiescenceWaiters.push(resolve) }) + } + + /** Abort + dispose every registered child (worker death / final teardown); disposal is contained, not awaited. */ + private reapChildren(reason: string): void { + this.controller.abort(this.cancelReason ?? reason) + for (const [callId, run] of [...this.children]) { + run.cancel(this.cancelReason ?? reason) + void run.dispose().then( + () => { this.finishChild(callId) }, + (error: unknown) => { + this.ctx.logger.warn(`workflow-vm: child dispose failed during reap: ${renderThrown(error)}`) + this.finishChild(callId) + }, + ) + } + } + + private onResult(result: WorkflowResult): void { + // The worker's settle-reap already child-cancel()s every stray; this + // abort fires the seam signal too, for providers that only honor the + // request signal (both channels, on every path). + if (this.cancelReason === undefined) this.controller.abort('workflow settled') + if (this.cancelReason !== undefined && result.stopReason !== 'cancelled') { + // The script settled while our cancel was crossing the thread boundary + // — the seam-visible result had NOT settled when cancellation was + // requested, so report cancelled (the vm drive()'s post-settle check, + // relocated to the receiving side of the race). + this.settleResult(this.cancelledResult(result.agentsStarted)) + return + } + this.settleResult(result) + } + + /** An unexpected worker death (or the expected exit after termination). */ + private onWorkerDeath(message: string): void { + // Whatever the worker left behind must not leak — abort + dispose it all. + if (this.children.size > 0) this.reapChildren('workflow worker gone') + // settleResult no-ops on an already-settled run (the expected exit after + // a dispose's terminate lands here too). + if (this.cancelReason !== undefined) { + this.settleResult(this.cancelledResult(this.hostStarted)) + return + } + this.settleResult({ value: null, stopReason: 'error', error: message, agentsStarted: this.hostStarted }) + } + + private cancelledResult(agentsStarted: number): WorkflowResult { + // cancel() is the only writer of cancelReason and every caller checks it + // first; the fallback guards the type, not a reachable path. + /* v8 ignore next */ + const reason = this.cancelReason ?? 'workflow cancelled' + return { value: null, stopReason: 'cancelled', error: `workflow run cancelled: ${reason}`, agentsStarted } + } + + /** First settle wins; disarms the grace timer. */ + private settleResult(result: WorkflowResult): void { + if (this.settled) return + this.settled = true + clearTimeout(this.graceTimer) + this.settleResolve(result) + } +} + +/** A plain timer sleep (the dispose grace); unref'd so it never holds the process open. */ +function sleep(ms: number): Promise { + return new Promise((resolve) => { + const timer = setTimeout(resolve, ms) + timer.unref() + }) +} diff --git a/packages/workflow/workflow-vm/src/index.ts b/packages/workflow/workflow-vm/src/index.ts index c1300427a2..1b65381bfb 100644 --- a/packages/workflow/workflow-vm/src/index.ts +++ b/packages/workflow/workflow-vm/src/index.ts @@ -1,39 +1,37 @@ /** - * The `node:vm` workflow engine: the first {@link WorkflowService} - * implementation. Parses the Claude Code-format script (meta + body), runs the - * body in a fresh in-process vm context with the workflow hooks injected, and - * fans `agent()` calls out to `ctx.subagents`. + * The `node:worker_threads` workflow engine: the {@link WorkflowService} + * implementation. Runs each script in its OWN worker thread (one run = one + * worker, no pooling — a run is heavyweight, so thread spin-up is noise): the + * body executes in a vm context INSIDE the worker with the workflow hooks + * injected, and `agent()` calls bridge back to `ctx.subagents` over the + * message port — child agents are I/O-bound LLM loops and stay on the host + * event loop; the thread isolates the SCRIPT, the only part that can spin + * synchronously. * * TRUST PREMISE: scripts are MODEL-WRITTEN — the same trust level as the * model's existing bash access — so this engine defends against BUGGY - * scripts, never hostile ones. vm is NOT a security boundary and no attempt - * is made to contain adversarial values (see ./realm.ts); the context is - * escapable by construction (the host `Function` constructor is reachable via - * `globalThis.constructor.constructor`, and `process` from there), so the - * absent globals are API surface, not containment. Genuine sandboxing is an - * engine swap behind the seam (worker-thread/isolated-vm), not incremental - * host-side defenses here. + * scripts, never hostile ones. A worker thread is NOT a security boundary: + * the vm context inside it is escapable by construction, and an escapee + * holds the same process privileges as the host (Node's permission model is + * process-wide); genuine sandboxing (isolated-vm, a separate process) is an + * engine swap behind the seam. What the thread buys, concretely: * - * Engine limitations, documented as the accepted cost of the in-process - * mechanism: + * - `start()` never blocks the host: the script's initial synchronous slice + * (and any later synchronous spin) occupies the WORKER's event loop, not + * the harness's. + * - Termination is REAL: a script that outlives its post-cancel grace is + * `worker.terminate()`d — nothing of the script survives `dispose()`, + * where an in-process engine could only abandon the spin on its own loop. + * - The value boundary is serialization by construction: everything crossing + * the thread is structured-clone data (and plain JSON before that, by the + * materialization walk in ./realm.ts). * - * - `start()` runs the script's initial SYNCHRONOUS slice inline, so the - * CALLER blocks on the host event loop until the script's first await (or - * the vm `timeout` kills the slice); the meta-literal evaluation has its - * own timeout budget on the same call. - * - The vm `timeout` covers only that initial slice; realm code running past - * it — an await continuation, a thenable's `then` invoked by promise - * resolution (including one the script RETURNS: a returned thenable - * resolves per JavaScript semantics before materialization, which is what - * makes an un-awaited `return agent('x')` work) — is beyond the timeout, so - * a synchronous spin there cannot be killed in-process, and neither can - * script code the host invokes while rendering a failure (a getter on a - * thrown value). `dispose()` waits a bounded grace for the script to settle - * AND its children (stray `agent()` calls included) to finish disposing, - * then ABANDONS whatever is left: pending hook promises are already - * rejected and the script's settlement is contained (no unhandled - * rejection), but an abandoned synchronous spin would still occupy the - * event loop. + * Engine-specific limitations: worker startup (~tens of ms) is paid per run; + * on a termination path `agentsStarted` reports the host-observed child + * count (calls still queued worker-side for a slot are unknowable — see + * ./host.ts); and a worker that dies unexpectedly (an OOM, a script reaching + * `process.exit` through the documented vm escape) settles the run + * `stopReason: 'error'` with the exit diagnostics. * * Plugin export shape: a default-exported {@link WorkflowService} subclass * (the class-based service form, like `dsh-bash-local`). @@ -43,16 +41,29 @@ import { randomUUID } from 'node:crypto' import { availableParallelism } from 'node:os' +import * as vm from 'node:vm' import type { Context } from 'cordis' import z from 'schemastery' -import WorkflowService, { WorkflowRunId } from '@deepseek-ai/dsh-workflow' -import type { WorkflowResult, WorkflowRun, WorkflowRunInfo, WorkflowStartRequest } from '@deepseek-ai/dsh-workflow' +import WorkflowService, { WorkflowError, WorkflowRunId } from '@deepseek-ai/dsh-workflow' +import type { WorkflowRun, WorkflowRunInfo, WorkflowStartRequest } from '@deepseek-ai/dsh-workflow' +import { WorkerRun } from './host.ts' import { extractMeta } from './meta.ts' -import { WorkflowExecution, type ExecutionLimits } from './runtime.ts' +import type { WorkerInit, WorkerLimits } from './types.ts' export { extractMeta, type ExtractedScript } from './meta.ts' +export { HostToWorkerType, WorkerToHostType } from './protocol.ts' +export type { HostToWorkerMessage, HostToWorkerPayloads, WorkerToHostMessage, WorkerToHostPayloads } from './protocol.ts' export { materializeFromRealm, MaterializeError } from './realm.ts' -export { WorkflowExecution, type ExecutionLimits, type ExecutionObserver } from './runtime.ts' +export { WorkflowExecution, type ExecutionObserver } from './runtime.ts' +export { requireParentPort, runWorkerSession } from './session.ts' +export type { + ChildHandle, + ChildPort, + ChildResult, + ChildStartRequest, + WorkerInit, + WorkerLimits, +} from './types.ts' /** Plugin config (all optional — `static Config` supplies the defaults). */ export interface Config { @@ -64,12 +75,12 @@ export interface Config { maxTotalAgents?: number /** Items accepted by a single `parallel()`/`pipeline()` call (default 4096). */ maxItemsPerCall?: number - /** vm timeout for the script's initial synchronous slice AND the meta-literal evaluation (default 5000 ms). */ + /** vm timeout for the initial synchronous slice (inside the worker) AND the host-side meta evaluation (default 5000 ms). */ syncTimeoutMs?: number /** * How long after a cancellation an unsettled script may keep running before - * it is abandoned and `result` force-settles `cancelled` (default 5000 ms); - * also bounds `dispose()`. + * the run force-settles `cancelled` and its worker is TERMINATED (default + * 5000 ms); also bounds `dispose()`. */ disposeGraceMs?: number } @@ -77,11 +88,27 @@ export interface Config { type ResolvedConfig = Required /** - * The vm engine service. `start()` validates the script up front (meta + - * body compile) and returns a {@link WorkflowRun} whose `result` never - * rejects; the `workflow/*` events fire around the run per the seam contract. + * Parse-check the body with the SAME wrapper the worker-side runtime + * compiles, so `start()` keeps the seam's synchronous `SCRIPT_PARSE` throw + * (the worker's own compile happens a thread away, after `start()` returned). + * One redundant parse per run, bought deliberately for the contract. */ -export class VmWorkflowEngine extends WorkflowService { +function assertBodyParses(body: string, name: string): void { + try { + // Parse only — the script object is discarded, nothing executes. + void new vm.Script(`(async () => {\n${body}\n})()`, { filename: `workflow:${name}`, lineOffset: -1 }) + } catch (error: unknown) { + throw new WorkflowError(`workflow script does not parse: ${String(error)}`, 'SCRIPT_PARSE', { cause: error }) + } +} + +/** + * The worker-thread engine service. `start()` validates the script up front + * (meta + a host-side body parse) and returns a {@link WorkflowRun} whose + * `result` never rejects; the `workflow/*` events fire around the run per + * the seam contract. + */ +export class WorkerWorkflowEngine extends WorkflowService { static inject = ['subagents'] static Config: z = z.object({ @@ -103,51 +130,56 @@ export class VmWorkflowEngine extends WorkflowService { } /** - * Parse and execute a workflow script. Throws {@link WorkflowError} - * synchronously (`SCRIPT_PARSE`/`META_INVALID`) for a script that cannot - * begin; once a run is returned, every failure resolves through - * `result.stopReason` instead. + * Parse and execute a workflow script in a fresh worker thread. Throws + * {@link WorkflowError} synchronously (`SCRIPT_PARSE`/`META_INVALID`) for a + * script that cannot begin; once a run is returned, every failure resolves + * through `result.stopReason` instead. * @param request - the script, its `args`, the parent agent, and an * optional cancel signal. * @returns the live run (its `result` resolves when the script settles). */ start(request: WorkflowStartRequest): WorkflowRun { const { meta, body } = extractMeta(request.script, this.config.syncTimeoutMs) + assertBodyParses(body, meta.name) const id = WorkflowRunId(randomUUID()) // The event payloads and the run handle get SEPARATE meta clones: a // listener mutating its snapshot must not corrupt the holder's view. const info: WorkflowRunInfo = { id, meta: structuredClone(meta) } - const limits: ExecutionLimits = { - provider: this.config.provider, + const limits: WorkerLimits = { maxConcurrentAgents: this.config.maxConcurrentAgents === 0 ? Math.min(16, Math.max(1, availableParallelism() - 2)) : this.config.maxConcurrentAgents, maxTotalAgents: this.config.maxTotalAgents, maxItemsPerCall: this.config.maxItemsPerCall, syncTimeoutMs: this.config.syncTimeoutMs, - disposeGraceMs: this.config.disposeGraceMs, } - const execution = new WorkflowExecution( - this.ctx, + const init: WorkerInit = { meta, body, - request.parent, - request.args, - request.signal, + ...request.args !== undefined ? { args: request.args } : {}, limits, + } + const workerRun = new WorkerRun( + this.ctx, + id, + structuredClone(meta), + request.parent, + init, + this.config.provider, + this.config.disposeGraceMs, { phase: (title) => { this.emitWorkflowEvent('workflow/phase', info, title) }, log: (message) => { this.emitWorkflowEvent('workflow/log', info, message) }, agentStart: (agent) => { this.emitWorkflowEvent('workflow/agent-start', info, agent) }, agentEnd: (agent) => { this.emitWorkflowEvent('workflow/agent-end', info, agent) }, }, + request.signal, ) this.emitWorkflowEvent('workflow/start', info) - const result: Promise = execution.drive() // `workflow/end` fires as the (never-rejecting) result settles, with the // outcome DATA only — the value stays with the run's holder. - void result.then((settled) => { + void workerRun.result.then((settled) => { this.emitWorkflowEvent('workflow/end', info, { stopReason: settled.stopReason, ...settled.error !== undefined ? { error: settled.error } : {}, @@ -155,46 +187,8 @@ export class VmWorkflowEngine extends WorkflowService { }) }) - let disposed: Promise | undefined - return { - id, - meta: structuredClone(meta), - result, - cancel(reason?: string): void { - execution.cancel(reason) - }, - dispose: (): Promise => { - // Idempotent: cancel, then wait min(settle + child quiescence, grace). - // The cancel itself bounds `result` (the execution abandons a script - // still unsettled `disposeGraceMs` later), so this outer race exists - // for CHILD quiescence: a slow-disposing child must not hold dispose - // past the grace. `result` and `quiesce()` never reject, so the race - // needs no rejection handling. - disposed ??= (async () => { - execution.cancel('workflow disposed') - await Promise.race([ - (async () => { - await result - // The result settles with the SCRIPT; stray children a script - // fired without awaiting are still winding down — dispose must - // not return while they hold live resources. - await execution.quiesce() - })(), - sleep(this.config.disposeGraceMs), - ]) - })() - return disposed - }, - } + return workerRun } } -/** A plain timer sleep (the dispose grace); unref'd so it never holds the process open. */ -function sleep(ms: number): Promise { - return new Promise((resolve) => { - const timer = setTimeout(resolve, ms) - timer.unref() - }) -} - -export default VmWorkflowEngine +export default WorkerWorkflowEngine diff --git a/packages/workflow/workflow-vm/src/protocol.ts b/packages/workflow/workflow-vm/src/protocol.ts new file mode 100644 index 0000000000..293676706e --- /dev/null +++ b/packages/workflow/workflow-vm/src/protocol.ts @@ -0,0 +1,115 @@ +/** + * The host⇄worker wire protocol: one string-valued enum of message tags per + * direction, a payload map giving each tag its parameters (the single source + * of truth), and the message unions derived from them. Everything in a + * payload is plain JSON data by construction (the runtime materializes + * script values before they reach a message; the host projects seam results + * down to their JSON fields), so the structured-clone hop never meets a + * value it cannot carry. + * + * Both directions are CLOSED (engine-owned): each side switches on `type` + * and ends with `assertNever` — an unknown message is a protocol bug, never + * something to skip silently. Senders go through a generic + * `post(type, payload)` whose payload parameter is looked up from the map, + * so a tag/payload mismatch is a compile error at the call site. + * + * @module @deepseek-ai/dsh-workflow-vm/protocol + */ + +import type { WorkflowAgentEndInfo, WorkflowAgentInfo, WorkflowResult } from '@deepseek-ai/dsh-workflow' +import type { ChildResult, ChildStartRequest } from './types.ts' + +/** Message tags the worker sends the host (the wire values are the tag strings). */ +export enum WorkerToHostType { + /** The startup handshake: the session is listening and awaits {@link HostToWorkerType.Go}. */ + Ready = 'ready', + /** Observer narration: a `phase(title)` call. */ + Phase = 'phase', + /** Observer narration: a `log(message)` call. */ + Log = 'log', + /** Observer lifecycle: one `agent()` call started a child. */ + AgentStart = 'agent-start', + /** Observer lifecycle: one `agent()` call settled. */ + AgentEnd = 'agent-end', + /** Child RPC: start a child on the host (answered by ChildStarted or ChildStartError). */ + ChildStart = 'child-start', + /** Child RPC: cancel a started child (fire-and-forget). */ + ChildCancel = 'child-cancel', + /** Child RPC: dispose a started child (answered by ChildDisposed). */ + ChildDispose = 'child-dispose', + /** The run's single terminal result. */ + Result = 'result', +} + +/** The payload each worker→host tag carries. */ +export interface WorkerToHostPayloads { + /** Ready carries nothing. */ + [WorkerToHostType.Ready]: Record + /** The phase title, verbatim. */ + [WorkerToHostType.Phase]: { title: string } + /** The logged message, verbatim. */ + [WorkerToHostType.Log]: { message: string } + /** The call's sequence number, label, phase, and child id. */ + [WorkerToHostType.AgentStart]: { info: WorkflowAgentInfo } + /** The call identity plus its outcome. */ + [WorkerToHostType.AgentEnd]: { info: WorkflowAgentEndInfo } + /** The RPC correlation id and the prompt plus validated options. */ + [WorkerToHostType.ChildStart]: { callId: number; request: ChildStartRequest } + /** The RPC correlation id and the cancel reason (undefined = unspecified). */ + [WorkerToHostType.ChildCancel]: { callId: number; reason: string | undefined } + /** The RPC correlation id of the child to dispose. */ + [WorkerToHostType.ChildDispose]: { callId: number } + /** The run's terminal outcome. */ + [WorkerToHostType.Result]: { result: WorkflowResult } +} + +/** Message tags the host sends the worker (the wire values are the tag strings). */ +export enum HostToWorkerType { + /** Releases the startup gate: run the script body. */ + Go = 'go', + /** Cancel the run: hooks start throwing and the script dies at its next await. */ + Cancel = 'cancel', + /** Child RPC reply: the start succeeded (exactly one of ChildStarted/ChildStartError per ChildStart). */ + ChildStarted = 'child-started', + /** Child RPC reply: the start was refused or threw. */ + ChildStartError = 'child-start-error', + /** Child RPC: a started child's result RESOLVED (its JSON projection). */ + ChildSettled = 'child-settled', + /** Child RPC: a started child's result REJECTED (an infrastructure fault, rendered). */ + ChildFailed = 'child-failed', + /** Child RPC reply: a requested disposal completed. */ + ChildDisposed = 'child-disposed', +} + +/** The payload each host→worker tag carries. */ +export interface HostToWorkerPayloads { + /** Go carries nothing. */ + [HostToWorkerType.Go]: Record + /** The cancel reason, canonical for the whole run. */ + [HostToWorkerType.Cancel]: { reason: string } + /** The RPC correlation id and the child agent's id (minted by the subagent seam). */ + [HostToWorkerType.ChildStarted]: { callId: number; childId: string } + /** The RPC correlation id and the rendered start failure. */ + [HostToWorkerType.ChildStartError]: { callId: number; rendered: string } + /** The RPC correlation id and the child's terminal result projection. */ + [HostToWorkerType.ChildSettled]: { callId: number; result: ChildResult } + /** The RPC correlation id and the rendered infrastructure fault. */ + [HostToWorkerType.ChildFailed]: { callId: number; rendered: string } + /** The RPC correlation id of the completed disposal. */ + [HostToWorkerType.ChildDisposed]: { callId: number } +} + +/** + * One worker→host message of tag `T`; unparameterized, the closed union over + * every tag (a discriminated union — `switch` on `type` narrows). + */ +export type WorkerToHostMessage = + { [K in T]: { type: K } & WorkerToHostPayloads[K] }[T] + +/** + * One host→worker message of tag `T`; unparameterized, the closed union over + * every tag (a discriminated union — `switch` on `type` narrows). + */ +export type HostToWorkerMessage = + { [K in T]: { type: K } & HostToWorkerPayloads[K] }[T] + diff --git a/packages/workflow/workflow-vm/src/realm.ts b/packages/workflow/workflow-vm/src/realm.ts index f5a2665626..017de76069 100644 --- a/packages/workflow/workflow-vm/src/realm.ts +++ b/packages/workflow/workflow-vm/src/realm.ts @@ -1,7 +1,10 @@ /** - * The vm engine's value boundary: copy script-realm values into plain host - * JSON data — loud about everything JSON cannot carry — and render thrown - * script values to failure text. + * The engine's value boundary: copy script-realm values into plain JSON data + * — loud about everything JSON cannot carry — and render thrown script + * values to failure text. The script runs in a vm context INSIDE the worker + * thread, so "host" here means the worker-side JavaScript around that + * context; everything that later crosses the thread boundary is JSON by this + * walk, which is what makes the postMessage hop total. * * TRUST PREMISE (everything in this module hangs on it): workflow scripts are * MODEL-WRITTEN, the same trust level as the model's existing bash access, so @@ -13,18 +16,16 @@ * properties ordinarily (a getter runs, and whatever it returns is what * crosses), {@link renderThrown} reads `stack`/`message`/`String()` directly, * and a proxy is walked through its traps. A hostile script gains nothing - * worth defending here — it can already occupy the event loop forever with a - * synchronous spin past the first await (the engine's documented, accepted - * limitation) — so host-side hostile-value containment would be cost without - * a threat model; genuine hardening is an ENGINE SWAP (worker/isolated-vm, - * where the boundary is serialization by construction), not incremental - * defenses here. + * worth defending here — the vm context inside the worker is escapable by + * construction, so hostile-value containment would be cost without a threat + * model (what the worker thread DOES buy is that a spin occupies the + * worker's loop, not the host's, and termination is real). * * The host→realm direction needs no machinery at all: hooks hand the script - * plain host values, host prototypes included — the script is trusted. One - * consequence is documented in the engine README: an error thrown by a hook - * is a HOST error, so an in-script `instanceof Error` check is false; read - * `name`/`code`/`message` instead. + * plain values of the worker realm, prototypes included — the script is + * trusted. One consequence is documented in the engine README: an error + * thrown by a hook is built OUTSIDE the script's vm context, so an in-script + * `instanceof Error` check is false; read `name`/`code`/`message` instead. * * @module @deepseek-ai/dsh-workflow-vm/realm */ diff --git a/packages/workflow/workflow-vm/src/runtime.ts b/packages/workflow/workflow-vm/src/runtime.ts index c4e5d1c651..3005520fa0 100644 --- a/packages/workflow/workflow-vm/src/runtime.ts +++ b/packages/workflow/workflow-vm/src/runtime.ts @@ -1,40 +1,44 @@ /** - * Per-run execution state for the vm workflow engine: the script context and - * its injected hooks (`agent`/`parallel`/`pipeline`/`phase`/`log`/`args`), the - * concurrency semaphore and caps, cancellation, and the drive loop that turns - * a script settlement into a {@link WorkflowResult}. + * Per-run execution state for the engine's THREAD side: the script's vm + * context and its injected hooks (`agent`/`parallel`/`pipeline`/`phase`/ + * `log`/`args`), the concurrency semaphore and caps, cancellation, and the + * drive loop that turns a script settlement into a {@link WorkflowResult}. + * Children are started by RPC to the host through a {@link ChildPort}, so + * this module never touches a cordis context — it runs inside the worker + * thread. * * Value boundary (the trust premise lives in ./realm.ts): values ENTERING the - * host from the script (hook options, schemas, the return value) are - * materialized by `materializeFromRealm` — a plain walk that rejects loud - * everything JSON cannot carry. Values ENTERING the realm (`args`, `agent()` - * results, hook promises and their failures, combinator arrays) are handed - * over DIRECTLY as host values: the script is model-written and trusted, so - * host prototypes are not a leak. `args` is host-side `structuredClone`d once - * at start so a script scribbling on it cannot mutate the caller's object — - * that is a benign-bug guard, not isolation. Realm functions (pipeline - * stages, parallel thunks) are called, not materialized — their values stay - * realm-side until they cross through a hook or the final return. + * worker-side host code from the script (hook options, schemas, the return + * value) are materialized by `materializeFromRealm` — a plain walk that + * rejects loud everything JSON cannot carry, which also makes every value + * safe for the later postMessage hop. Values ENTERING the realm (`args`, + * `agent()` results, hook promises and their failures, combinator arrays) are + * handed over DIRECTLY as worker-realm values: the script is model-written + * and trusted, so outer prototypes are not a leak. `args` is cloned once at + * start so a script scribbling on it cannot mutate the session's init object + * (a benign-bug guard; the postMessage clone already isolated the caller). * * Failure discipline: fatal {@link WorkflowError}s (bad hook arguments, - * unsupported options/schemas, tripped caps, seam start failures and result - * rejections, cancellation) ALWAYS propagate through `parallel`/`pipeline` — - * recognized by host `instanceof`, which a script cannot forge — and the - * per-item `null` is reserved for child-run failures and ordinary in-stage - * script errors. - * Every hook-returned promise gets a no-op rejection consumer attached, so a - * script that drops a promise (fires an `agent()` without awaiting it) cannot - * surface an unhandled rejection when cancellation rejects it — the app boot - * layer exits the process on unhandled rejections. + * unsupported options/schemas, tripped caps, host start refusals and child + * result rejections, cancellation) ALWAYS propagate through + * `parallel`/`pipeline` — recognized by `instanceof` against this realm's + * class, which a script inside the vm context cannot forge — and the per-item + * `null` is reserved for child-run failures and ordinary in-stage script + * errors. Every hook-returned promise gets a no-op rejection consumer, so a + * dropped promise cannot surface an unhandled rejection (which would kill the + * worker and read as an engine fault). + * + * There is deliberately NO worker-side abandon channel: a script that never + * settles after a cancel simply never posts a result, and the HOST enforces + * the settles-within-grace guarantee by force-settling `cancelled` and + * terminating the worker — the real kill an in-process engine could not have. * * @module @deepseek-ai/dsh-workflow-vm/runtime */ import * as vm from 'node:vm' -import type { Context } from 'cordis' +import { AgentId } from '@deepseek-ai/dsh-agent' import type { ContentBlock } from '@deepseek-ai/dsh-llm' -import type { Agent } from '@deepseek-ai/dsh-agent' -import type {} from '@deepseek-ai/dsh-subagent' import { assertSupportedOutputSchema, OutputSchemaError } from '@deepseek-ai/dsh-tools' import type { StructuredOutputSchema } from '@deepseek-ai/dsh-tools' import { isFatalWorkflowError, WorkflowError } from '@deepseek-ai/dsh-workflow' @@ -45,24 +49,9 @@ import type { WorkflowResult, } from '@deepseek-ai/dsh-workflow' import { materializeFromRealm, MaterializeError, renderThrown } from './realm.ts' +import type { ChildHandle, ChildPort, WorkerLimits } from './types.ts' -/** The per-run knobs the engine resolves from its Config. */ -export interface ExecutionLimits { - /** The `ctx.subagents` provider name to start children on. */ - provider: string - /** Concurrent `agent()` ceiling (already auto-resolved; ≥ 1). */ - maxConcurrentAgents: number - /** Total `agent()` calls per run (the runaway-loop backstop). */ - maxTotalAgents: number - /** Items accepted by one `parallel()`/`pipeline()` call. */ - maxItemsPerCall: number - /** vm timeout for the script's initial synchronous slice. */ - syncTimeoutMs: number - /** How long after `cancel()` a still-unsettled script is abandoned (result force-settles `cancelled`). */ - disposeGraceMs: number -} - -/** The engine-side observers the execution reports progress through. */ +/** The observers the execution reports progress through (the session posts them to the host). */ export interface ExecutionObserver { phase(title: string): void log(message: string): void @@ -91,9 +80,9 @@ function defaultLabel(prompt: string): string { } /** - * One live script execution. Constructed per run by the engine; `drive()` is - * called exactly once and NEVER rejects — every failure becomes a - * {@link WorkflowResult} with a non-`completed` stop reason. + * One live script execution inside the worker. Constructed per run by the + * session; `drive()` is called exactly once and NEVER rejects — every failure + * becomes a {@link WorkflowResult} with a non-`completed` stop reason. */ export class WorkflowExecution { /** 1-based count of `agent()` calls started (the `agentsStarted` result field). */ @@ -106,36 +95,19 @@ export class WorkflowExecution { private currentPhase: string | undefined private readonly context: vm.Context private readonly compiled: vm.Script - /** Every live `agent()` call promise — awaited or stray — for {@link quiesce}. */ - private readonly inFlightAgents = new Set>() - /** Fires {@link abandoned}; assigned by the promise executor at field initialization. */ - private declareAbandoned!: () => void - private abandonTimer: NodeJS.Timeout | undefined - /** - * Rejects `disposeGraceMs` after {@link cancel} if the script has not - * settled by then. `drive()` races the script against it, so `result` - * ALWAYS settles within the grace of a cancellation — even when the script - * is parked on a promise no hook owns (`await new Promise(() => {})`), which - * cancellation cannot reject. Without this, a consumer awaiting `result` - * before disposing (the tool's shape) would hang forever on such a script, - * wedging its caller past any abort. - */ - private readonly abandoned = new Promise((_, reject) => { - this.declareAbandoned = () => { reject(new WorkflowError('workflow script abandoned after the cancellation grace', 'CANCELLED')) } - }) constructor( - private readonly ctx: Context, meta: WorkflowMeta, body: string, - private readonly parent: Agent, args: unknown, - signal: AbortSignal | undefined, - private readonly limits: ExecutionLimits, + private readonly limits: WorkerLimits, private readonly observer: ExecutionObserver, + private readonly children: ChildPort, ) { // Compile FIRST: a body syntax error must throw out of the constructor - // (the engine maps it to SCRIPT_PARSE) before any realm state exists. + // before any realm state exists. The host pre-parses the identical + // wrapper, so under one Node version this throw is unreachable in + // production — the session still maps it to an error result defensively. // lineOffset compensates for the wrapper line, so stack traces carry the // script's own line numbers (the meta statement was blanked, not removed). try { @@ -148,20 +120,17 @@ export class WorkflowExecution { } this.context = vm.createContext({}, { name: `workflow:${meta.name}` }) - // A run that settles without ever being abandoned leaves `abandoned` - // permanently pending or rejecting into the void — consume it so a late - // grace timer cannot surface an unhandled rejection. - void this.contain(this.abandoned) const globals: Record = { - agent: (prompt: unknown, opts?: unknown) => this.contain(this.track(this.agent(prompt, opts))), + agent: (prompt: unknown, opts?: unknown) => this.contain(this.agent(prompt, opts)), parallel: (thunks: unknown) => this.contain(this.parallel(thunks)), pipeline: (items: unknown, ...stages: unknown[]) => this.contain(this.pipeline(items, stages)), phase: (title: unknown) => { this.phase(title) }, log: (message: unknown) => { this.log(message) }, - // Host-side clone: a script scribbling on args must not mutate the - // caller's object (a benign-bug guard; args is plain JSON by the seam - // contract, so structuredClone is total here and throws loud otherwise). + // Cloned once: a script scribbling on args must not mutate the + // session's init object (a benign-bug guard; args is plain JSON by the + // seam contract and already crossed one structured clone as workerData, + // so this clone is total). args: args === undefined ? undefined : structuredClone(args), } for (const [key, value] of Object.entries(globals)) { @@ -169,18 +138,12 @@ export class WorkflowExecution { // a script overwriting its own hooks only sabotages itself. ;(this.context as Record)[key] = typeof value === 'function' ? Object.freeze(value) : value } - - if (signal?.aborted) { - this.cancel('workflow start signal already aborted') - } else { - signal?.addEventListener('abort', () => { this.cancel('workflow signal aborted') }, { once: true }) - } } /** * Whether the run has been cancelled. A METHOD, not an inline property - * read: `cancel()` mutates `cancelReason` concurrently (a signal listener, - * a raced dispose), and an inline read after an `await` gets narrowed by + * read: `cancel()` mutates `cancelReason` concurrently (the session's + * message handler), and an inline read after an `await` gets narrowed by * control flow into an always-false comparison. */ private isCancelled(): boolean { @@ -199,45 +162,41 @@ export class WorkflowExecution { } /** - * Cancel the run: children abort (the shared signal), waiting `agent()` - * slots reject, and every future hook call throws `CANCELLED` — the script - * dies at its next await. A script that STILL has not settled after - * `disposeGraceMs` (parked on a promise no hook owns) is abandoned so - * `result` settles regardless (see {@link abandoned}). Idempotent; the - * first reason wins. + * Cancel the run: in-flight children get a cancel RPC (the shared abort + * fanout), waiting `agent()` slots reject, and every future hook call + * throws `CANCELLED` — the script dies at its next await. A script that + * never settles anyway (parked on a promise no hook owns) is the HOST's + * problem: its grace timer force-settles the run and terminates the + * worker. Idempotent; the first reason wins. * @param reason - human-readable cause, carried on the CANCELLED error and - * into child `run.cancel()` calls (default `'workflow cancelled'`). + * into child cancel RPCs. Required: every caller (the session's cancel + * message, drive()'s settle-reap) has a concrete reason. */ - cancel(reason?: string): void { + cancel(reason: string): void { if (this.cancelReason !== undefined) return - this.cancelReason = reason ?? 'workflow cancelled' + this.cancelReason = reason this.cancelError = new WorkflowError(`workflow run cancelled: ${this.cancelReason}`, 'CANCELLED') this.controller.abort(this.cancelReason) for (const waiter of this.slotWaiters.splice(0)) waiter.reject(this.cancelledError()) - this.abandonTimer = setTimeout(() => { this.declareAbandoned() }, this.limits.disposeGraceMs) - // unref'd: an armed grace timer must never hold the process open. - this.abandonTimer.unref() } /** * Run the script to settlement. Resolves — never rejects — with the run's * {@link WorkflowResult}: the materialized return value on `completed`, the * failure message on `error`, and `cancelled` when the script died of - * cancellation (or outlived its post-cancel grace and was abandoned — see - * {@link abandoned}). After settlement, any stray children a script fired - * without awaiting are aborted (their `agent()` wrappers dispose them). + * cancellation. After settlement, any stray children a script fired without + * awaiting are cancelled (their `agent()` wrappers dispose them via RPC). * @returns the settled outcome — this promise NEVER rejects (the seam's * `result`-never-rejects contract); every failure maps to a variant. */ async drive(): Promise { try { - // Cancelled before the body ever ran (an already-aborted start signal): - // the script must not execute at all, let alone report `completed`. + // Cancelled before the body ever ran (an already-aborted start signal, + // relayed by the host before its `go`): the script must not execute at + // all, let alone report `completed`. if (this.isCancelled()) throw this.cancelledError() const scriptPromise = this.compiled.runInContext(this.context, { timeout: this.limits.syncTimeoutMs }) as Promise - // The race is the result-settles-after-cancel guarantee: a parked - // script loses to the abandon channel once the grace expires. - const raw: unknown = await Promise.race([this.contain(Promise.resolve(scriptPromise)), this.abandoned]) + const raw: unknown = await this.contain(Promise.resolve(scriptPromise)) // Cancelled while the body ran: a script that settled without touching // another hook (or without any) must still report `cancelled` — the // holder asked for cancellation and `completed` would be a lie. @@ -250,59 +209,30 @@ export class WorkflowExecution { if (this.isCancelled()) { return { value: null, stopReason: 'cancelled', error: this.cancelledError().message, agentsStarted: this.started } } - // renderThrown is total (host- and realm-thrown values alike), so this - // arm cannot throw — drive() resolving is the `result` never-rejects - // seam contract. + // renderThrown is total (thrown values of any realm), so this arm + // cannot throw — drive() resolving is the `result` never-rejects seam + // contract. return { value: null, stopReason: 'error', error: renderThrown(error), agentsStarted: this.started } } finally { // Reap strays: a script that fired agent() calls without awaiting them - // leaves live children behind after settlement — abort them all. (The + // leaves live children behind after settlement — cancel them all. (The // per-call wrappers dispose each child; the contain() consumer keeps // their rejections from going unhandled.) if (this.cancelReason === undefined) this.cancel('workflow settled') - // drive() settling means nothing is left to abandon — including the - // timer the self-cancel above just armed (cancel() always arms it, so - // it is never undefined here; clearTimeout tolerates undefined anyway). - clearTimeout(this.abandonTimer) } } /** * Attach a no-op rejection consumer WITHOUT changing what the caller * receives: if the script drops the promise (no await), cancellation cannot - * become an unhandled rejection (the app boot layer exits the process on - * those); if the script does await it, it still observes the rejection. + * become an unhandled rejection (which would kill the worker thread); if + * the script does await it, it still observes the rejection. */ private contain(promise: Promise): Promise { promise.catch(() => { /* consumed: see method contract — a dropped hook promise must not surface an unhandled rejection */ }) return promise } - /** - * Register one `agent()` call promise for {@link quiesce} tracking; the - * entry drops when the call fully settles (which is AFTER its child's - * `dispose()` — the call wrapper disposes in its `finally`). - */ - private track(promise: Promise): Promise { - this.inFlightAgents.add(promise) - const drop = (): void => { this.inFlightAgents.delete(promise) } - promise.then(drop, drop) - return promise - } - - /** - * Settles once every `agent()` call — awaited or stray — has fully settled, - * INCLUDING each child's `dispose()`. The reap in {@link drive}'s finally - * aborts strays; this is the wait for those aborts to reach quiescence, so - * the engine's `dispose()` cannot return while a child is still winding - * down. Never rejects (the tracked promises' rejections are contained). - */ - async quiesce(): Promise { - while (this.inFlightAgents.size > 0) { - await Promise.allSettled([...this.inFlightAgents]) - } - } - private cancelledError(): WorkflowError { // cancel() arms cancelError before any caller can observe isCancelled() // === true; the fallback guards the type, not a reachable path. @@ -375,28 +305,37 @@ export class WorkflowExecution { // Re-check after the acquire: the await yields at least one microtask // tick even when a slot is free, and a queued waiter resumes a tick // after its release — a cancel() landing in either window must not - // start a child (it would carry an ALREADY-aborted signal, which a - // provider subscribing only to future abort events would never see). + // reach the host (which would refuse anyway, but the refusal reads as + // a start failure rather than the cancellation it is). this.throwIfCancelled() - let run + let run: ChildHandle try { - run = this.ctx.subagents.start(this.limits.provider, { - prompt: [{ type: 'text', text: rawPrompt }], - parent: this.parent, - signal: this.controller.signal, - ...opts.schema !== undefined ? { outputSchema: opts.schema } : {}, - ...opts.model !== undefined ? { agentOptions: { model: opts.model } } : {}, + run = await this.children.startAgent({ + prompt: rawPrompt, + ...opts.schema !== undefined ? { schema: opts.schema } : {}, + ...opts.model !== undefined ? { model: opts.model } : {}, }) } catch (error: unknown) { - throw new WorkflowError(`agent() could not start a child on provider "${this.limits.provider}": ${String(error)}`, 'AGENT_START', { cause: error }) + // The host refuses starts once the run is cancelled — a refusal that + // races our own cancel state must read as the cancellation it is, + // not as a broken seam. + if (this.isCancelled()) throw this.cancelledError() + throw new WorkflowError(`agent() could not start a child: ${renderThrown(error)}`, 'AGENT_START', { cause: error }) } - const info: WorkflowAgentInfo = { seq, label, ...phase !== undefined ? { phase } : {}, childId: run.id } + // The start round-trip yields to the event loop, so a cancel CAN land + // between the host starting the child and this continuation running — + // wind the fresh child down instead of leaving it live behind a dead + // script. + if (this.isCancelled()) { + run.cancel(this.cancelReason) + await run.dispose() + throw this.cancelledError() + } + const info: WorkflowAgentInfo = { seq, label, ...phase !== undefined ? { phase } : {}, childId: AgentId(run.id) } this.observer.agentStart(info) - // Cancellation bridges to run.cancel() as well as the request signal: - // the seam leaves a provider free to honor either channel, so the - // consumer must drive both. The signal cannot be aborted yet (the block - // since the post-acquire check is synchronous), so the listener always - // arms; `once` plus the finally removal keep it leak-free. + // Cancellation reaches the child through an explicit cancel RPC per + // child (the host also aborts its own per-run signal, but the seam + // leaves a provider free to honor either channel, so both are driven). const onAbort = (): void => { run.cancel(this.cancelReason) } this.controller.signal.addEventListener('abort', onAbort, { once: true }) try { @@ -404,8 +343,8 @@ export class WorkflowExecution { try { result = await run.result } catch (error: unknown) { - // The seam allows `result` to reject for an INFRASTRUCTURE fault — - // distinct from a child that failed and resolved. Pair the + // A rejected child result is an INFRASTRUCTURE fault relayed by the + // host — distinct from a child that failed and resolved. Pair the // lifecycle before propagating, and propagate FATAL: an ordinary // throw would dissolve to a per-item null inside the combinators, // and a broken provider must not read as a failed child. @@ -510,9 +449,10 @@ export class WorkflowExecution { try { return await thunk() } catch (error: unknown) { - // Hook failures are host WorkflowErrors; a fatal one is recognized by - // host `instanceof` — a script-built object can never pass it, so - // fatality cannot be forged (nor accidentally dissolved). + // Hook failures are WorkflowErrors built OUTSIDE the script's realm; + // fatality is recognized by `instanceof` against this realm's class — + // a script-built object can never pass it, so fatality cannot be + // forged (nor accidentally dissolved). if (isFatalWorkflowError(error)) throw error return null } @@ -544,8 +484,8 @@ export class WorkflowExecution { return value } catch (error: unknown) { // An ordinary stage throw drops the ITEM to null and skips its - // remaining stages; a fatal host WorkflowError (see parallel()) kills - // the whole script. + // remaining stages; a fatal WorkflowError (see parallel()) kills the + // whole script. if (isFatalWorkflowError(error)) throw error return null } diff --git a/packages/workflow/workflow-vm/src/session.ts b/packages/workflow/workflow-vm/src/session.ts new file mode 100644 index 0000000000..131f760ff9 --- /dev/null +++ b/packages/workflow/workflow-vm/src/session.ts @@ -0,0 +1,210 @@ +/** + * The worker-side half of the engine: {@link runWorkerSession} wires one + * MessagePort to one {@link WorkflowExecution} — hook progress and child + * starts go out as messages, run control and child lifecycle come back in — + * and posts the run's terminal result exactly once. Deliberately separated + * from the thread bootstrap (./worker.ts): the whole session is drivable + * in-process over a `MessageChannel`, which is where its unit coverage lives + * (code inside a real Worker is invisible to the main process's coverage). + * + * Startup handshake: the session posts `ready` and runs the script only + * after the host's `go` — without it, a cancellation racing the worker's + * boot could arrive AFTER the script's initial synchronous slice already + * ran, and a run cancelled before start must not execute the body at all. + * A `cancel` arriving instead of `go` still releases the gate: `drive()` + * sees the cancelled state and settles without running the body. + * + * @module @deepseek-ai/dsh-workflow-vm/session + */ + +import type { MessagePort } from 'node:worker_threads' +import { assertNever } from '@deepseek-ai/dsh-llm' +import { HostToWorkerType, WorkerToHostType } from './protocol.ts' +import type { HostToWorkerMessage, WorkerToHostPayloads } from './protocol.ts' +import { renderThrown } from './realm.ts' +import { WorkflowExecution } from './runtime.ts' +import type { ExecutionObserver } from './runtime.ts' +import type { + ChildHandle, + ChildPort, + ChildResult, + ChildStartRequest, + WorkerInit, +} from './types.ts' + +/** The book-keeping for one in-flight child RPC (keyed by callId). */ +interface PendingChild { + started: PromiseWithResolvers + settled: PromiseWithResolvers + disposed: PromiseWithResolvers +} + +/** The typed post half of the port: each tag pairs with ITS payload from the map (a mismatch is a compile error at the call site). */ +type Post = (type: T, payload: WorkerToHostPayloads[T]) => void + +/** + * The worker-side handle for one started child agent ({@link ChildHandle}): + * every member is an RPC to the host keyed by this call's `callId`, resolved + * by the session's message handler through the bridge's pending entry. + */ +class RpcChildHandle implements ChildHandle { + readonly result: Promise + + constructor( + private readonly post: Post, + private readonly callId: number, + private readonly entry: PendingChild, + readonly id: string, + ) { + this.result = entry.settled.promise + } + + cancel(reason?: string): void { + this.post(WorkerToHostType.ChildCancel, { callId: this.callId, reason }) + } + + dispose(): Promise { + this.post(WorkerToHostType.ChildDispose, { callId: this.callId }) + return this.entry.disposed.promise + } +} + +/** + * The worker-side child-RPC bridge ({@link ChildPort}): allocates callIds, + * posts the start/cancel/dispose RPCs, and owns the per-call pending + * book-keeping the session's message handler settles via the `onChild*` + * entry points. + */ +class ChildRpcBridge implements ChildPort { + private nextCallId = 0 + private readonly pending = new Map() + + constructor(private readonly post: Post) {} + + async startAgent(request: ChildStartRequest): Promise { + this.nextCallId += 1 + const callId = this.nextCallId + const entry: PendingChild = { + started: Promise.withResolvers(), + settled: Promise.withResolvers(), + disposed: Promise.withResolvers(), + } + // Containment: when the start is refused (or the run torn down) the + // settled promise may never gain a consumer — it must not surface as an + // unhandled rejection and kill the worker. + entry.settled.promise.catch(() => { /* consumed: unconsumed child settlement after a refused start */ }) + this.pending.set(callId, entry) + this.post(WorkerToHostType.ChildStart, { callId, request }) + const childId = await entry.started.promise + return new RpcChildHandle(this.post, callId, entry, childId) + } + + /** The host started the child; releases the `startAgent` await. */ + onChildStarted(callId: number, childId: string): void { + this.pending.get(callId)?.started.resolve(childId) + } + + /** The host refused the start; `startAgent` rejects with the rendered cause. */ + onChildStartError(callId: number, rendered: string): void { + this.pending.get(callId)?.started.reject(new Error(rendered)) + } + + /** The child's terminal result arrived. */ + onChildSettled(callId: number, result: ChildResult): void { + this.pending.get(callId)?.settled.resolve(result) + } + + /** The child's `result` rejected host-side (an infrastructure fault, relayed as fatal). */ + onChildFailed(callId: number, rendered: string): void { + this.pending.get(callId)?.settled.reject(new Error(rendered)) + } + + /** The host acked the dispose; the call's book-keeping is complete. */ + onChildDisposed(callId: number): void { + const entry = this.pending.get(callId) + this.pending.delete(callId) + entry?.disposed.resolve() + } +} + +/** + * Narrow the nullable `parentPort` the bootstrap reads from + * `node:worker_threads`. + * @param port - `parentPort` as imported (null on the main thread). + * @returns the port, non-null. + */ +export function requireParentPort(port: MessagePort | null): MessagePort { + if (port === null) throw new Error('the workflow worker entry must be loaded inside a worker thread (no parentPort)') + return port +} + +/** + * Run one workflow script to settlement against `port`, posting the terminal + * result message exactly once; resolves after that post (stray children may + * still be winding down through the port — the host owns their teardown and + * ultimately terminates the thread). Never rejects: a constructor failure + * (unparseable body — host pre-parse makes this a Node-version-skew signal) + * is reported as an `error` result rather than dying without a result. + * @param port - the channel to the host (the real `parentPort`, or one side + * of an in-process `MessageChannel` in tests). + * @param init - the run payload the host provided as `workerData`. + */ +export async function runWorkerSession(port: MessagePort, init: WorkerInit): Promise { + const post: Post = (type, payload) => { + port.postMessage({ type, ...payload }) + } + const children = new ChildRpcBridge(post) + + const observer: ExecutionObserver = { + phase: (title) => { post(WorkerToHostType.Phase, { title }) }, + log: (message) => { post(WorkerToHostType.Log, { message }) }, + agentStart: (info) => { post(WorkerToHostType.AgentStart, { info }) }, + agentEnd: (info) => { post(WorkerToHostType.AgentEnd, { info }) }, + } + + let execution: WorkflowExecution + try { + execution = new WorkflowExecution(init.meta, init.body, init.args, init.limits, observer, children) + } catch (error: unknown) { + post(WorkerToHostType.Result, { result: { value: null, stopReason: 'error', error: renderThrown(error), agentsStarted: 0 } }) + return + } + + const gate = Promise.withResolvers() + port.on('message', (message: HostToWorkerMessage) => { + switch (message.type) { + case HostToWorkerType.Go: + gate.resolve() + break + case HostToWorkerType.Cancel: + execution.cancel(message.reason) + // A cancel doubles as the gate release: drive() checks the cancelled + // state before running the body, so the script never executes. + gate.resolve() + break + case HostToWorkerType.ChildStarted: + children.onChildStarted(message.callId, message.childId) + break + case HostToWorkerType.ChildStartError: + children.onChildStartError(message.callId, message.rendered) + break + case HostToWorkerType.ChildSettled: + children.onChildSettled(message.callId, message.result) + break + case HostToWorkerType.ChildFailed: + children.onChildFailed(message.callId, message.rendered) + break + case HostToWorkerType.ChildDisposed: + children.onChildDisposed(message.callId) + break + /* v8 ignore next 2 -- closed engine-owned union; the arm only makes adding a message type a compile error */ + default: + assertNever(message, 'host-to-worker message') + } + }) + + post(WorkerToHostType.Ready, {}) + await gate.promise + const result = await execution.drive() + post(WorkerToHostType.Result, { result }) +} diff --git a/packages/workflow/workflow-vm/src/types.ts b/packages/workflow/workflow-vm/src/types.ts new file mode 100644 index 0000000000..c87fc4668c --- /dev/null +++ b/packages/workflow/workflow-vm/src/types.ts @@ -0,0 +1,97 @@ +/** + * Non-protocol wire vocabulary for the worker-thread engine: the `workerData` init + * payload and the child-port interfaces the worker-side runtime consumes. + * The host⇄worker MESSAGE protocol lives in ./protocol.ts; everything here + * that a message transports (`ChildStartRequest`, `ChildResult`) is plain + * JSON data by construction, so the structured-clone hop never meets a value + * it cannot carry. Types only, per the package convention. + * + * @module @deepseek-ai/dsh-workflow-vm/types + */ + +import type { ContentBlock } from '@deepseek-ai/dsh-llm' +import type { StructuredOutputSchema } from '@deepseek-ai/dsh-tools' +import type { WorkflowMeta } from '@deepseek-ai/dsh-workflow' + +/** + * The per-run limits the worker-side runtime enforces. The host keeps the + * knobs only it can act on (`provider`, `disposeGraceMs`). + */ +export interface WorkerLimits { + /** Concurrent `agent()` ceiling (already auto-resolved; ≥ 1). */ + maxConcurrentAgents: number + /** Total `agent()` calls per run (the runaway-loop backstop). */ + maxTotalAgents: number + /** Items accepted by one `parallel()`/`pipeline()` call. */ + maxItemsPerCall: number + /** vm timeout for the script's initial synchronous slice (inside the worker). */ + syncTimeoutMs: number +} + +/** The `workerData` payload one run is initialized with (host → worker, once, at spawn). */ +export interface WorkerInit { + /** The validated meta block (extracted host-side). */ + meta: WorkflowMeta + /** The script body with the meta statement blanked (host-side `extractMeta`). */ + body: string + /** The run's `args` value; the workerData structured clone is the copy that isolates the caller. */ + args?: unknown + /** The worker-enforced limits. */ + limits: WorkerLimits +} + +/** What the worker asks the host to start for one `agent()` call (options already validated worker-side). */ +export interface ChildStartRequest { + /** The child's prompt text. */ + prompt: string + /** The structured-output schema, if the call passed one (already subset-checked). */ + schema?: StructuredOutputSchema + /** The per-child model override, if the call passed one. */ + model?: string +} + +/** + * The JSON projection of a child's `SubagentResult` crossing the port. The + * seam's `stopReason` union is merge-extensible, so it degrades to `string` + * on the wire — the runtime only ever branches on `'completed'`. + */ +export interface ChildResult { + /** The child's final assistant output blocks. */ + output: ContentBlock[] + /** The structured value, present iff the request carried a schema AND the provider honored it. */ + structured?: unknown + /** Why the child run ended (`'completed'` is the only value the runtime branches on). */ + stopReason: string +} + +/** + * The worker-side handle for one started child — the RPC mirror of the + * subagent seam's run handle, reduced to what the runtime consumes. + */ +export interface ChildHandle { + /** The child agent's id (minted host-side by the subagent seam). */ + readonly id: string + /** + * Resolves with the child's terminal {@link ChildResult}; REJECTS only when + * the host reports an infrastructure fault (`child-failed`) — a child that + * failed for its own reasons resolves with a non-`completed` stop reason. + */ + readonly result: Promise + /** Ask the host to cancel the child (fire-and-forget). */ + cancel(reason?: string): void + /** Ask the host to dispose the child; resolves on the host's ack. */ + dispose(): Promise +} + +/** + * The worker-side port the runtime starts child agents through — the seam + * that lets the execution core stay ignorant of the thread boundary. + */ +export interface ChildPort { + /** + * Start one child agent on the host (the `agent()` hook's start half). + * @param request - the prompt and validated options. + * @returns the child handle; rejects when the host refuses the start. + */ + startAgent(request: ChildStartRequest): Promise +} diff --git a/packages/workflow/workflow-vm/src/worker.ts b/packages/workflow/workflow-vm/src/worker.ts new file mode 100644 index 0000000000..3b20600d7d --- /dev/null +++ b/packages/workflow/workflow-vm/src/worker.ts @@ -0,0 +1,18 @@ +/** + * The worker-thread entry the engine spawns: bootstrap ./session.ts on the + * real `parentPort`. Deliberately a single statement — every piece of logic + * lives in `runWorkerSession`, which the unit suite drives in-process over a + * `MessageChannel` (code inside a real Worker is invisible to main-process + * coverage); loading this module on the main thread throws via + * `requireParentPort`, which is how the suite covers the file itself. + * + * @module @deepseek-ai/dsh-workflow-vm/worker + */ + +import { parentPort, workerData } from 'node:worker_threads' +import { requireParentPort, runWorkerSession } from './session.ts' +import type { WorkerInit } from './types.ts' + +// workerData is `any` at the node:worker_threads boundary; the engine is the +// only spawner and always provides a WorkerInit. +void runWorkerSession(requireParentPort(parentPort), workerData as WorkerInit) diff --git a/packages/workflow/workflow-vm/tests/built-worker.e2e.ts b/packages/workflow/workflow-vm/tests/built-worker.e2e.ts new file mode 100644 index 0000000000..9bdd3865bb --- /dev/null +++ b/packages/workflow/workflow-vm/tests/built-worker.e2e.ts @@ -0,0 +1,56 @@ +import { existsSync } from 'node:fs' +import { rm, writeFile } from 'node:fs/promises' +import { join } from 'node:path' +import { execFile } from 'node:child_process' +import { promisify } from 'node:util' +import { fileURLToPath } from 'node:url' +import { describe, expect, it } from 'vitest' + +const packageRoot = fileURLToPath(new URL('..', import.meta.url)) +const builtIndex = join(packageRoot, 'lib', 'index.js') +const builtWorker = join(packageRoot, 'lib', 'worker.js') +const run = promisify(execFile) + +/** + * The BUILT-output guard for the worker entry: every other suite runs + * unbuilt (src/ + tsx), so nothing else proves that `lib/index.js` resolves + * its sibling `lib/worker.js` and that the bundle boots a worker under plain + * node (no tsx loader). Keyless — a zero-agent script needs no provider — + * and self-skips until `pnpm run build` has produced the bundles. + */ +describe.skipIf(!existsSync(builtIndex) || !existsSync(builtWorker))('built worker entry (lib/worker.js)', () => { + it('the built engine spawns its built worker under plain node and completes a run', async () => { + // ESM resolves bare specifiers from the IMPORTING FILE's location, so the + // driver must live inside the package for its node_modules to apply — a + // temp-named file at the package root, removed on the way out. + const driver = join(packageRoot, `.built-worker-driver-${process.pid}.mjs`) + try { + await writeFile(driver, ` +import { Context } from 'cordis' +import SubagentService from '@deepseek-ai/dsh-subagent' +import WorkerWorkflowEngine from '@deepseek-ai/dsh-workflow-vm' + +const ctx = new Context() +await ctx.plugin(SubagentService) +await ctx.plugin(WorkerWorkflowEngine, {}) +const run = ctx.workflows.start({ + script: "export const meta = { name: 'built-smoke', description: 'built worker smoke' }\\nreturn 6 * 7", + // A zero-agent script never touches the provider, so a bare id suffices. + parent: { id: 'built-smoke-parent', options: {} }, +}) +const result = await run.result +await run.dispose() +if (result.stopReason !== 'completed' || result.value !== 42) { + console.error('unexpected result: ' + JSON.stringify(result)) + process.exit(1) +} +console.log('built-worker-smoke-ok') +`, 'utf8') + // Plain node — no tsx loader anywhere; the bundle must stand on its own. + const { stdout } = await run(process.execPath, [driver], { cwd: packageRoot, timeout: 60_000 }) + expect(stdout).toContain('built-worker-smoke-ok') + } finally { + await rm(driver, { force: true }) + } + }, 120_000) +}) diff --git a/packages/workflow/workflow-vm/tests/integration.spec.ts b/packages/workflow/workflow-vm/tests/integration.spec.ts index 3572131a8a..e53ea518bc 100644 --- a/packages/workflow/workflow-vm/tests/integration.spec.ts +++ b/packages/workflow/workflow-vm/tests/integration.spec.ts @@ -11,15 +11,17 @@ import SubagentService from '@deepseek-ai/dsh-subagent' import * as spawn from '@deepseek-ai/dsh-subagent-spawn' import { STRUCTURED_OUTPUT_TOOL } from '@deepseek-ai/dsh-subagent-inprocess' import { MockAdapter, textResponse, toolCallResponse } from '../../../core/agent-loop/tests/mock-adapter.ts' -import VmWorkflowEngine from '../src/index.ts' +import WorkerWorkflowEngine from '../src/index.ts' type Script = ConstructorParameters[0] /** - * The whole in-process stack, keyless: the vm engine drives the REAL spawn - * backend (with its structured runtime) on a real agent loop; the scripted - * mock MODEL is the only mocked boundary. This is the integration guard the - * per-hook unit tests (which stub the subagent seam) structurally cannot give. + * The whole in-process stack, keyless, with the script in a REAL worker + * thread: the engine drives the REAL spawn backend (with its + * structured runtime) on a real agent loop; the scripted mock MODEL is the + * only mocked boundary. This is the guard the unit suites structurally + * cannot give — the MessageChannel suite fakes the host, and the host suite + * stubs the subagent seam. */ async function setup(script: Script) { const ctx = new Context() @@ -33,7 +35,7 @@ async function setup(script: Script) { await ctx.plugin(AgentLoop, { agents: [] }) await ctx.plugin(SubagentService) await ctx.plugin(spawn, { providerName: 'spawn' }) - await ctx.plugin(VmWorkflowEngine, {}) + await ctx.plugin(WorkerWorkflowEngine, {}) ctx.llm.registerAdapter(['mock'], adapter) const parent = ctx.agentLoop.create(AgentId('parent'), { model: 'mock' }) return { ctx, parent, adapter } diff --git a/packages/workflow/workflow-vm/tests/session.spec.ts b/packages/workflow/workflow-vm/tests/session.spec.ts new file mode 100644 index 0000000000..00051ad56a --- /dev/null +++ b/packages/workflow/workflow-vm/tests/session.spec.ts @@ -0,0 +1,504 @@ +import { describe, expect, it, vi } from 'vitest' +import { MessageChannel } from 'node:worker_threads' +import type { MessagePort } from 'node:worker_threads' +import { HostToWorkerType, WorkerToHostType } from '../src/protocol.ts' +import type { HostToWorkerMessage, WorkerToHostMessage } from '../src/protocol.ts' +import { requireParentPort, runWorkerSession } from '../src/session.ts' +import type { ChildResult, WorkerInit } from '../src/types.ts' + +/** Default limits for in-process sessions (concurrency pinned; auto is machine-derived). */ +function limits(overrides?: Partial): WorkerInit['limits'] { + return { maxConcurrentAgents: 8, maxTotalAgents: 1000, maxItemsPerCall: 4096, syncTimeoutMs: 5000, ...overrides } +} + +/** Wrap a body in the minimal valid meta header (the session receives it pre-extracted). */ +function init(body: string, args?: unknown, limitOverrides?: Partial): WorkerInit { + return { + meta: { name: 'test-flow', description: 'a test workflow' }, + body, + ...args !== undefined ? { args } : {}, + limits: limits(limitOverrides), + } +} + +/** One scripted host over the other end of a MessageChannel. */ +interface FakeHost { + port: MessagePort + messages: WorkerToHostMessage[] + /** Messages of one type, as they arrive. */ + ofType(type: T): Extract[] + send(message: HostToWorkerMessage): void + /** Resolves with the terminal result message. */ + result(): Promise['result']> + close(): void +} + +interface FakeHostOptions { + /** Auto-respond to child-start: reply started + settled per child index. Omit a reply to leave the child pending. */ + reply?: (request: { prompt: string; schema?: unknown; model?: string }, index: number) => ChildResult | undefined + /** Reject the start instead (child-start-error) when returning a string. */ + refuse?: (index: number) => string | undefined + /** Auto-send `go` on `ready` (default true). */ + go?: boolean + /** Manual mode: do NOT auto-answer child-start at all (the test scripts the replies). */ + manual?: boolean +} + +/** + * Drive runWorkerSession IN-PROCESS over a MessageChannel: this is where the + * worker-side files earn their coverage — code inside a real Worker is + * invisible to main-process coverage. The fake host mirrors the real host's + * protocol discipline (one started/start-error per start; settled/disposed + * follow). + */ +function fakeHost(options?: FakeHostOptions): FakeHost { + const channel = new MessageChannel() + const messages: WorkerToHostMessage[] = [] + const resultGate = Promise.withResolvers['result']>() + let childIndex = 0 + channel.port1.on('message', (message: WorkerToHostMessage) => { + messages.push(message) + switch (message.type) { + case WorkerToHostType.Ready: + if (options?.go !== false) channel.port1.postMessage({ type: HostToWorkerType.Go } satisfies HostToWorkerMessage) + break + case WorkerToHostType.ChildStart: { + if (options?.manual) break + const index = childIndex + childIndex += 1 + const refusal = options?.refuse?.(index) + if (refusal !== undefined) { + channel.port1.postMessage( + { type: HostToWorkerType.ChildStartError, callId: message.callId, rendered: refusal } satisfies HostToWorkerMessage, + ) + break + } + channel.port1.postMessage({ type: HostToWorkerType.ChildStarted, callId: message.callId, childId: `child-${index}` } satisfies HostToWorkerMessage) + const reply = options?.reply?.(message.request, index) + if (reply !== undefined) { + channel.port1.postMessage( + { type: HostToWorkerType.ChildSettled, callId: message.callId, result: reply } satisfies HostToWorkerMessage, + ) + } + break + } + case WorkerToHostType.ChildDispose: + channel.port1.postMessage({ type: HostToWorkerType.ChildDisposed, callId: message.callId } satisfies HostToWorkerMessage) + break + case WorkerToHostType.Result: + resultGate.resolve(message.result) + break + default: + break + } + }) + return { + port: channel.port2, + messages, + ofType: type => messages.filter((message): message is never => message.type === type), + send: (message) => { channel.port1.postMessage(message) }, + result: () => resultGate.promise, + close: () => { channel.port1.close() }, + } +} + +/** A completed text child result. */ +function text(reply: string): ChildResult { + return { output: [{ type: 'text', text: reply }], stopReason: 'completed' } +} + +describe('runWorkerSession over an in-process MessageChannel', () => { + it('runs a script end to end: ready/go handshake, phases, log, agents, result', async () => { + const host = fakeHost({ reply: (_request, index) => text(`answer-${index}`) }) + const session = runWorkerSession(host.port, init(` + phase('Scan') + log('starting with ' + args.files.length + ' files') + const answers = await pipeline(args.files, (prev, item) => agent('read ' + item)) + return { answers } + `, { files: ['a.ts', 'b.ts'] })) + const result = await host.result() + await session + expect(result.stopReason).toBe('completed') + expect(result.agentsStarted).toBe(2) + expect(result.value).toEqual({ answers: ['answer-0', 'answer-1'] }) + expect(host.messages[0]!.type).toBe('ready') + expect(host.ofType(WorkerToHostType.Phase).map(m => m.title)).toEqual(['Scan']) + expect(host.ofType(WorkerToHostType.Log).map(m => m.message)).toEqual(['starting with 2 files']) + expect(host.ofType(WorkerToHostType.AgentStart).map(m => m.info.childId)).toEqual(['child-0', 'child-1']) + expect(host.ofType(WorkerToHostType.AgentEnd).every(m => m.info.outcome === 'completed')).toBe(true) + host.close() + }) + + it('agent({schema}) forwards the schema on the start request and returns the structured value', async () => { + const host = fakeHost({ reply: () => ({ output: [], structured: { files: ['x.ts'] }, stopReason: 'completed' }) }) + void runWorkerSession(host.port, init(` + const found = await agent('list files', { schema: { type: 'object', properties: { files: { type: 'array', items: { type: 'string' } } } }, model: 'deepseek-v4-pro' }) + return { first: found.files[0] } + `)) + const result = await host.result() + expect(result.value).toEqual({ first: 'x.ts' }) + const start = host.ofType(WorkerToHostType.ChildStart)[0]! + expect(start.request.schema).toEqual({ type: 'object', properties: { files: { type: 'array', items: { type: 'string' } } } }) + expect(start.request.model).toBe('deepseek-v4-pro') + host.close() + }) + + it('a schema child completing WITHOUT a structured value resolves null with a failed outcome', async () => { + const host = fakeHost({ reply: () => text('prose, no structure') }) + void runWorkerSession(host.port, init("return await agent('p', { schema: { type: 'object' } })")) + const result = await host.result() + expect(result.value).toBeNull() + expect(host.ofType(WorkerToHostType.AgentEnd)[0]!.info.outcome).toBe('failed') + host.close() + }) + + it('a child settling non-completed resolves null (scripts filter), never throwing into the script', async () => { + const host = fakeHost({ reply: (_request, index) => index === 0 ? { output: [], stopReason: 'error' } : text('ok') }) + void runWorkerSession(host.port, init("return await parallel([() => agent('one'), () => agent('two')])")) + const result = await host.result() + expect(result.value).toEqual([null, 'ok']) + expect(host.ofType(WorkerToHostType.AgentEnd).map(m => m.info.outcome)).toEqual(expect.arrayContaining(['failed', 'completed'])) + host.close() + }) + + it('a start refusal (child-start-error) is a fatal AGENT_START that kills the script through a combinator', async () => { + const host = fakeHost({ refuse: () => 'no provider here' }) + void runWorkerSession(host.port, init("return await pipeline([1], () => agent('p'))")) + const result = await host.result() + expect(result.stopReason).toBe('error') + expect(result.error).toContain('agent() could not start a child') + expect(result.error).toContain('no provider here') + host.close() + }) + + it('a child-failed message (infrastructure rejection) is fatal AGENT_RESULT with the paired failed outcome', async () => { + const host = fakeHost() + void runWorkerSession(host.port, init(` + try { await agent('p'); return 'unreachable' } catch (e) { return { name: e.name, code: e.code, fatal: e.fatal } } + `)) + await vi.waitFor(() => { expect(host.ofType(WorkerToHostType.ChildStart).length).toBe(1) }) + const callId = host.ofType(WorkerToHostType.ChildStart)[0]!.callId + host.send({ type: HostToWorkerType.ChildStarted, callId, childId: 'child-0' }) + host.send({ type: HostToWorkerType.ChildFailed, callId, rendered: 'backend exploded' }) + const result = await host.result() + expect(result.value).toMatchObject({ name: 'WorkflowError', code: 'AGENT_RESULT', fatal: true }) + expect(host.ofType(WorkerToHostType.AgentEnd)[0]!.info.outcome).toBe('failed') + host.close() + }) + + it('cancel before go: the body never runs at all and the result is cancelled (a second cancel is a no-op)', async () => { + const host = fakeHost({ go: false }) + const session = runWorkerSession(host.port, init("log('ran')\nreturn 123")) + await vi.waitFor(() => { expect(host.messages.some(m => m.type === WorkerToHostType.Ready)).toBe(true) }) + host.send({ type: HostToWorkerType.Cancel, reason: 'aborted before start' }) + // Idempotence: the first reason wins; a duplicate cancel changes nothing. + host.send({ type: HostToWorkerType.Cancel, reason: 'a later reason that must lose' }) + const result = await host.result() + await session + expect(result.stopReason).toBe('cancelled') + expect(result.error).toContain('aborted before start') + expect(result.error).not.toContain('must lose') + expect(result.value).toBeNull() + expect(host.ofType(WorkerToHostType.Log)).toEqual([]) + host.close() + }) + + it('a script with no return value resolves value: null', async () => { + const host = fakeHost({ reply: () => text('ok') }) + void runWorkerSession(host.port, init("await agent('p')")) + const result = await host.result() + expect(result.stopReason).toBe('completed') + expect(result.value).toBeNull() + host.close() + }) + + it('cancel mid-run: in-flight children get cancel RPCs, hooks throw at entry, the run reports cancelled', async () => { + const host = fakeHost() + void runWorkerSession(host.port, init(` + phase('before') + try { await agent('x') } catch (e) {} + try { phase('after') } catch (e) {} + try { log('after') } catch (e) {} + try { await parallel([() => 'ran']) } catch (e) {} + try { await pipeline(['item'], p => p) } catch (e) {} + return 'survived by catching' + `)) + await vi.waitFor(() => { expect(host.ofType(WorkerToHostType.ChildStart).length).toBe(1) }) + const callId = host.ofType(WorkerToHostType.ChildStart)[0]!.callId + host.send({ type: HostToWorkerType.ChildStarted, callId, childId: 'child-0' }) + host.send({ type: HostToWorkerType.Cancel, reason: 'stop everything' }) + // The real host settles the aborted child; mirror it. + host.send({ type: HostToWorkerType.ChildSettled, callId, result: { output: [], stopReason: 'aborted' } }) + const result = await host.result() + expect(result.stopReason).toBe('cancelled') + expect(result.error).toContain('stop everything') + expect(host.ofType(WorkerToHostType.ChildCancel).map(m => m.callId)).toContain(callId) + expect(host.ofType(WorkerToHostType.AgentEnd)[0]!.info.outcome).toBe('cancelled') + // No post-cancel narration left the runtime (the hooks threw at entry). + expect(host.ofType(WorkerToHostType.Phase).map(m => m.title)).toEqual(['before']) + expect(host.ofType(WorkerToHostType.Log)).toEqual([]) + host.close() + }) + + it('cancellation between a queued waiter and its slot: the waiter rejects without a child-start', async () => { + const host = fakeHost({ go: true }) + void runWorkerSession(host.port, init( + "return await parallel([() => agent('a'), () => agent('b')])", + undefined, + { maxConcurrentAgents: 1 }, + )) + await vi.waitFor(() => { expect(host.ofType(WorkerToHostType.ChildStart).length).toBe(1) }) + host.send({ type: HostToWorkerType.Cancel, reason: 'raced' }) + const result = await host.result() + expect(result.stopReason).toBe('cancelled') + // Only the first agent ever reached the host. + expect(host.ofType(WorkerToHostType.ChildStart).length).toBe(1) + host.close() + }) + + it('a stray (never-awaited) agent is reaped after settlement: cancel + dispose RPCs flow, no unhandled rejection', async () => { + const unhandled: unknown[] = [] + const onUnhandled = (reason: unknown): void => { unhandled.push(reason) } + process.on('unhandledRejection', onUnhandled) + try { + const host = fakeHost() + void runWorkerSession(host.port, init(` + agent('stray, never awaited') + return 'done without awaiting' + `)) + const result = await host.result() + expect(result.stopReason).toBe('completed') + await vi.waitFor(() => { expect(host.ofType(WorkerToHostType.ChildStart).length).toBe(1) }) + const callId = host.ofType(WorkerToHostType.ChildStart)[0]!.callId + host.send({ type: HostToWorkerType.ChildStarted, callId, childId: 'child-0' }) + host.send({ type: HostToWorkerType.ChildSettled, callId, result: { output: [], stopReason: 'aborted' } }) + await vi.waitFor(() => { expect(host.ofType(WorkerToHostType.ChildDispose).map(m => m.callId)).toContain(callId) }) + await new Promise(resolve => setTimeout(resolve, 20)) + expect(unhandled).toEqual([]) + host.close() + } finally { + process.off('unhandledRejection', onUnhandled) + } + }) + + it('an unparseable body settles an error result instead of dying without one (host pre-parse skew guard)', async () => { + const host = fakeHost() + await runWorkerSession(host.port, init('return (((')) + const result = await host.result() + expect(result.stopReason).toBe('error') + expect(result.error).toContain('does not parse') + expect(result.agentsStarted).toBe(0) + host.close() + }) + + it('a synchronous spin in the initial slice dies by the in-worker vm timeout', async () => { + const host = fakeHost() + void runWorkerSession(host.port, init('while (true) {}', undefined, { syncTimeoutMs: 50 })) + const result = await host.result() + expect(result.stopReason).toBe('error') + expect(result.error?.toLowerCase()).toContain('timed out') + host.close() + }) + + it('a non-JSON return value fails loud as RESULT_UNSERIALIZABLE', async () => { + const host = fakeHost() + void runWorkerSession(host.port, init('return { when: new Date(0) }')) + const result = await host.result() + expect(result.stopReason).toBe('error') + expect(result.error).toContain('not plain JSON data') + host.close() + }) + + it('tolerates replies for unknown callIds (a teardown race): nothing crashes, the run completes', async () => { + const host = fakeHost({ reply: () => text('fine') }) + void runWorkerSession(host.port, init("return await agent('p')")) + host.send({ type: HostToWorkerType.ChildStarted, callId: 999, childId: 'ghost' }) + host.send({ type: HostToWorkerType.ChildStartError, callId: 999, rendered: 'ghost' }) + host.send({ type: HostToWorkerType.ChildSettled, callId: 999, result: text('ghost') }) + host.send({ type: HostToWorkerType.ChildFailed, callId: 999, rendered: 'ghost' }) + host.send({ type: HostToWorkerType.ChildDisposed, callId: 999 }) + const result = await host.result() + expect(result.stopReason).toBe('completed') + expect(result.value).toBe('fine') + host.close() + }) + + it('caps and malformed hook arguments reject loud (the runtime runs unchanged inside the session)', async () => { + const cases: [string, string][] = [ + ['return await agent(42)', 'non-empty prompt string'], + ["return await agent('')", 'non-empty prompt string'], + ["return await agent('p', 'opts')", 'options must be an object'], + ["return await agent('p', { label: 3 })", '"label" must be a string'], + ["return await agent('p', { get label() { throw new Error('read failed') } })", 'options must be plain JSON data'], + ["return await agent('p', { bogus: true })", '"bogus" is not recognized'], + ["return await agent('p', { effort: 'high' })", '"effort" is deferred'], + ["return await agent('p', { schema: { type: 'object', oneOf: [] } })", 'outside the supported subset'], + ['return await parallel([() => 1, () => 2, () => 3])', 'over the per-call cap (2)'], + ['return await pipeline([1, 2, 3], (x) => x)', 'maxItemsPerCall'], + ["return await parallel('no')", 'parallel() requires an array'], + ['return await parallel([3])', 'item 0 is not a function'], + ["return await pipeline('no', () => 1)", 'pipeline() requires an items array'], + ['return await pipeline([1])', 'at least one stage'], + ["return await pipeline([1], 'x')", 'stage 0 is not a function'], + ["phase('')", 'phase() requires a non-empty title string'], + ['log(3)', 'log() requires a message string'], + ] + for (const [body, expected] of cases) { + const host = fakeHost({ reply: () => text('ok') }) + void runWorkerSession(host.port, init(body, undefined, { maxItemsPerCall: 2 })) + const result = await host.result() + expect(result.stopReason).toBe('error') + expect(result.error).toContain(expected) + host.close() + } + }) + + it('combinator semantics: thunk/stage throws null the item; a forged fatal-shaped object stays null; real fatals propagate', async () => { + const host = fakeHost({ reply: () => text('fine') }) + void runWorkerSession(host.port, init(` + const viaParallel = await parallel([ + () => { throw new Error('boom') }, + () => agent('fine'), + () => 'plain value', + () => { throw { name: 'WorkflowError', fatal: true, message: 'forged fatal' } }, + ]) + const viaPipeline = await pipeline([10, 20], + (prev, item, index) => { if (item === 10) throw new Error('ordinary failure'); return 'kept-' + item + '-' + index }, + ) + return { viaParallel, viaPipeline } + `)) + const result = await host.result() + expect(result.stopReason).toBe('completed') + expect(result.value).toEqual({ + viaParallel: [null, 'fine', 'plain value', null], + viaPipeline: [null, 'kept-20-1'], + }) + host.close() + }) + + it('trips the total-agent cap with a message naming the config knob', async () => { + const host = fakeHost({ reply: () => text('ok') }) + void runWorkerSession(host.port, init("await agent('1'); await agent('2'); await agent('3')", undefined, { maxTotalAgents: 2 })) + const result = await host.result() + expect(result.stopReason).toBe('error') + expect(result.error).toContain('total agent cap (2)') + expect(result.agentsStarted).toBe(2) + host.close() + }) + + it('queued agents proceed through the concurrency semaphore in FIFO order', async () => { + const host = fakeHost({ reply: request => text(`ok:${request.prompt}`) }) + void runWorkerSession(host.port, init( + "return await parallel([1, 2, 3].map((n) => () => agent('job ' + n)))", + undefined, + { maxConcurrentAgents: 1 }, + )) + const result = await host.result() + expect(result.value).toEqual(['ok:job 1', 'ok:job 2', 'ok:job 3']) + host.close() + }) + + it('labels default from the prompt first line, truncated; explicit label/phase options win', async () => { + const host = fakeHost({ reply: () => text('ok') }) + void runWorkerSession(host.port, init(` + phase('Find') + await agent('a prompt that is quite long and will surely get truncated down to a display label\\n' + + 'with a second line the label must not include') + await agent('short', { label: 'named', phase: 'Custom' }) + return null + `)) + await host.result() + const starts = host.ofType(WorkerToHostType.AgentStart).map(m => m.info) + expect(starts[0]).toMatchObject({ seq: 1, phase: 'Find' }) + expect(starts[0]!.label.length).toBeLessThanOrEqual(48) + expect(starts[0]!.label).not.toContain('second line') + expect(starts[1]).toMatchObject({ seq: 2, label: 'named', phase: 'Custom' }) + host.close() + }) + + it('non-text output blocks are filtered out of the text result', async () => { + const host = fakeHost({ + reply: () => ({ + output: [ + { type: 'text', text: 'first ' }, + { type: 'tool_call', id: 'c1', name: 'x', arguments: {} } as never, + { type: 'text', text: 'second' }, + ], + stopReason: 'completed', + }), + }) + void runWorkerSession(host.port, init("return await agent('p')")) + const result = await host.result() + expect(result.value).toBe('first second') + host.close() + }) + + it('a cancel landing DURING the start round-trip winds the fresh child down (cancel + dispose) and dies cancelled', async () => { + const host = fakeHost({ manual: true }) + void runWorkerSession(host.port, init("return await agent('p')")) + await vi.waitFor(() => { expect(host.ofType(WorkerToHostType.ChildStart).length).toBe(1) }) + const callId = host.ofType(WorkerToHostType.ChildStart)[0]!.callId + // Cancel FIRST, then the (stale) started reply: the worker processes them + // in order, so the agent() continuation resumes already-cancelled — the + // window the real host cannot produce (it refuses starts once cancelled) + // but a teardown race can. + host.send({ type: HostToWorkerType.Cancel, reason: 'raced the start' }) + host.send({ type: HostToWorkerType.ChildStarted, callId, childId: 'child-0' }) + const result = await host.result() + expect(result.stopReason).toBe('cancelled') + await vi.waitFor(() => { + expect(host.ofType(WorkerToHostType.ChildCancel).map(m => m.callId)).toContain(callId) + expect(host.ofType(WorkerToHostType.ChildDispose).map(m => m.callId)).toContain(callId) + }) + // The child never became an agent-start: it was wound down pre-lifecycle. + expect(host.ofType(WorkerToHostType.AgentStart)).toEqual([]) + host.close() + }) + + it('a start refusal arriving after a cancel reads as the cancellation, not a broken seam', async () => { + const host = fakeHost({ manual: true }) + void runWorkerSession(host.port, init(` + try { await agent('p'); return 'unreachable' } catch (e) { return { code: e.code } } + `)) + await vi.waitFor(() => { expect(host.ofType(WorkerToHostType.ChildStart).length).toBe(1) }) + const callId = host.ofType(WorkerToHostType.ChildStart)[0]!.callId + host.send({ type: HostToWorkerType.Cancel, reason: 'stopping' }) + host.send({ type: HostToWorkerType.ChildStartError, callId, rendered: 'workflow run cancelled: stopping' }) + const result = await host.result() + // The run reports cancelled (the script died of CANCELLED, not AGENT_START). + expect(result.stopReason).toBe('cancelled') + host.close() + }) + + it('a child result rejection while cancelled pairs a cancelled agent-end, and the run reports cancelled', async () => { + const host = fakeHost({ manual: true }) + void runWorkerSession(host.port, init("return await agent('doomed')")) + await vi.waitFor(() => { expect(host.ofType(WorkerToHostType.ChildStart).length).toBe(1) }) + const callId = host.ofType(WorkerToHostType.ChildStart)[0]!.callId + host.send({ type: HostToWorkerType.ChildStarted, callId, childId: 'child-0' }) + await vi.waitFor(() => { expect(host.ofType(WorkerToHostType.AgentStart).length).toBe(1) }) + host.send({ type: HostToWorkerType.Cancel, reason: 'user aborted' }) + host.send({ type: HostToWorkerType.ChildFailed, callId, rendered: 'backend crashed on abort' }) + const result = await host.result() + expect(result.stopReason).toBe('cancelled') + expect(host.ofType(WorkerToHostType.AgentEnd)[0]!.info.outcome).toBe('cancelled') + host.close() + }) + +}) + +describe('the worker bootstrap', () => { + it('requireParentPort narrows a real port and throws on the main thread', () => { + const channel = new MessageChannel() + expect(requireParentPort(channel.port1)).toBe(channel.port1) + channel.port1.close() + expect(() => requireParentPort(null)).toThrow(/inside a worker thread/) + }) + + it('the entry module itself throws when loaded on the main thread (no parentPort)', async () => { + // This import EXECUTES ../src/worker.ts on the main thread, which is what + // covers the bootstrap file: requireParentPort throws before + // runWorkerSession is reached. + await expect(import('../src/worker.ts')).rejects.toThrow(/inside a worker thread/) + }) +}) diff --git a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts index bb685f536f..7264877f48 100644 --- a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts +++ b/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts @@ -6,14 +6,17 @@ import type { Agent } from '@deepseek-ai/dsh-agent' import SubagentService from '@deepseek-ai/dsh-subagent' import type { SubagentCapabilities, SubagentProvider, SubagentResult, SubagentRun, SubagentStartRequest } from '@deepseek-ai/dsh-subagent' import type { WorkflowResult, WorkflowResultInfo, WorkflowRunInfo } from '@deepseek-ai/dsh-workflow' -import * as vmEngineModule from '../src/index.ts' -import VmWorkflowEngine, { type Config } from '../src/index.ts' +import * as workerEngineModule from '../src/index.ts' +import WorkerWorkflowEngine, { type Config } from '../src/index.ts' /** A minimal parent stand-in: the engine only threads it through to the provider. */ function fakeParent(): Agent { return { id: AgentId('workflow-parent'), options: {} } as unknown as Agent } +/** The vm-context escape hatch, spelled once: real Worker tests use it to make the WORKER misbehave. */ +const ESCAPE = "globalThis.constructor.constructor('return process')()" + /** One controllable child run: the test (or auto mode) settles it. */ interface ControlledRun { request: SubagentStartRequest @@ -25,13 +28,11 @@ interface ControlledRun { /** * A scripted in-test provider over the REAL SubagentService registry: `auto` * settles each run via the reply function on a microtask; `manual` piles runs - * up in `runs` for the test to settle (concurrency/cancellation tests). A run - * aborts (settles `aborted`) when the request signal fires, like the real - * in-process backends. + * up in `runs` for the test to settle. A run aborts (settles `aborted`) when + * the request signal fires, like the real in-process backends. */ class StubProvider implements SubagentProvider { readonly capabilities: SubagentCapabilities = { outputSchema: true, depthLimit: true, toolFilter: true } - // Context contract: stub children start fresh, mirroring the spawn backend. readonly inheritsParentContext = false readonly runs: ControlledRun[] = [] @@ -64,7 +65,6 @@ class StubProvider implements SubagentProvider { controlled.disposed = true return Promise.resolve() } - // A slow-winding child (quiescence tests): disposal completes late. return new Promise((resolve) => { setTimeout(() => { controlled.disposed = true @@ -99,8 +99,8 @@ async function setup(options?: SetupOptions) { ctx.subagents.registerProvider(provider) // A fixed concurrency ceiling: the auto-resolved default is machine-derived // (cores - 2, floored at 1), so tests that expect N children in flight - // would wedge on small CI runners. Tests about the ceiling override it. - await ctx.plugin(VmWorkflowEngine, { provider: 'stub', maxConcurrentAgents: 8, ...options?.config }) + // would wedge on small CI runners. + await ctx.plugin(WorkerWorkflowEngine, { provider: 'stub', maxConcurrentAgents: 8, ...options?.config }) return { ctx, provider, parent: fakeParent() } } @@ -120,8 +120,8 @@ async function run(ctx: Context, parent: Agent, source: string, args?: unknown): } describe('dsh-workflow-vm', () => { - describe('script execution', () => { - it('runs a script end-to-end: agent() text results, phases, log, args, return value', async () => { + describe('script execution over a real worker thread', () => { + it('runs a script end-to-end: agent() text results, phases, log, args, return value, events', async () => { const { ctx, parent, provider } = await setup({ reply: (_request, index) => text(`answer-${index}`) }) const events: [string, unknown[]][] = [] for (const name of ['workflow/start', 'workflow/phase', 'workflow/log', 'workflow/agent-start', 'workflow/agent-end', 'workflow/end'] as const) { @@ -152,32 +152,12 @@ describe('dsh-workflow-vm', () => { expect('value' in end).toBe(false) }) - it('agent-start/end events carry seq, label (defaulted from the prompt), phase, and outcome', async () => { - const { ctx, parent } = await setup() - const starts: unknown[] = [] - const ends: unknown[] = [] - ctx.on('workflow/agent-start', (_info, agent) => starts.push(agent)) - ctx.on('workflow/agent-end', (_info, agent) => ends.push(agent)) - await run(ctx, parent, script(` - phase('Find') - await agent('a prompt that is quite long and will surely get truncated down to a display label\\n' - + 'with a second line the label must not include') - await agent('short', { label: 'named', phase: 'Custom' }) - return null - `)) - expect(starts[0]).toMatchObject({ seq: 1, phase: 'Find', childId: 'stub-child-0' }) - expect((starts[0] as { label: string }).label.length).toBeLessThanOrEqual(48) - expect((starts[0] as { label: string }).label).not.toContain('second line') - expect(starts[1]).toMatchObject({ seq: 2, label: 'named', phase: 'Custom' }) - expect(ends[0]).toMatchObject({ seq: 1, outcome: 'completed' }) - }) - - it('agent({schema}) forwards outputSchema to the provider and returns the structured value into the realm', async () => { + it('agent({schema, model}) forwards outputSchema and agentOptions to the provider across the thread', async () => { const { ctx, parent, provider } = await setup({ reply: () => ({ output: [], structured: { files: ['x.ts', 'y.ts'] }, stopReason: 'completed' }), }) const result = await run(ctx, parent, script(` - const found = await agent('list files', { schema: { type: 'object', properties: { files: { type: 'array', items: { type: 'string' } } }, required: ['files'] } }) + const found = await agent('list files', { model: 'deepseek-v4-pro', schema: { type: 'object', properties: { files: { type: 'array', items: { type: 'string' } } }, required: ['files'] } }) return { first: found.files[0], count: found.files.length } `)) expect(result.value).toEqual({ first: 'x.ts', count: 2 }) @@ -186,271 +166,25 @@ describe('dsh-workflow-vm', () => { properties: { files: { type: 'array', items: { type: 'string' } } }, required: ['files'], }) - }) - - it('model option maps to agentOptions.model on the start request', async () => { - const { ctx, parent, provider } = await setup() - await run(ctx, parent, script("return await agent('p', { model: 'deepseek-v4-pro' })")) expect(provider.runs[0]!.request.agentOptions).toEqual({ model: 'deepseek-v4-pro' }) + expect(provider.runs[0]!.request.parent).toBeDefined() }) - it('a failed child resolves null (scripts filter), never throwing into the script', async () => { - const { ctx, parent } = await setup({ - reply: (_request, index) => index === 0 ? { output: [], stopReason: 'error' } : text('ok'), - }) - const result = await run(ctx, parent, script(` - const results = await parallel([() => agent('one'), () => agent('two')]) - return results - `)) - expect(result.value).toEqual([null, 'ok']) - }) - - it('a schema run that completes WITHOUT a structured value is a child failure (null + failed outcome)', async () => { - const { ctx, parent } = await setup({ reply: () => text('prose, no structure') }) - const ends: unknown[] = [] - ctx.on('workflow/agent-end', (_info, agent) => ends.push(agent)) - const result = await run(ctx, parent, script(` - return await agent('p', { schema: { type: 'object' } }) - `)) - expect(result.value).toBeNull() - expect(ends[0]).toMatchObject({ outcome: 'failed' }) - }) - - it('a script with no return value resolves value: null', async () => { + it('a fatal hook error inside the worker kills the script and reports the error', async () => { const { ctx, parent } = await setup() - const result = await run(ctx, parent, script("await agent('p')")) - expect(result.stopReason).toBe('completed') - expect(result.value).toBeNull() - }) - - it('a returned promise/thenable resolves per async-JS semantics before materialization', async () => { - const { ctx, parent } = await setup() - // Load-bearing ergonomics: forgetting await on the final hook call works. - expect((await run(ctx, parent, script("return agent('x')"))).value).toBe('stub reply') - // A hand-built thenable is assimilated by the async return — the - // RESOLUTION is the script's return value (standard JavaScript), and the - // realm-boundary guard applies to that resolution, not the thenable. - expect((await run(ctx, parent, script('return { value: 1, then(resolve) { resolve({ ok: true }) } }'))).value).toEqual({ ok: true }) - const nonJson = await run(ctx, parent, script('return { then(resolve) { resolve({ bad: new Date(0) }) } }')) - expect(nonJson.stopReason).toBe('error') - expect(nonJson.error).toContain('not plain JSON data') - }) - }) - - describe('combinator semantics', () => { - it('pipeline has NO cross-stage barrier: a fast item finishes stage 2 while a slow item holds stage 1', async () => { - const { ctx, parent, provider } = await setup({ manual: true }) - const handle = ctx.workflows.start({ - script: script(` - const out = await pipeline(['slow', 'fast'], - (prev, item) => agent('s1 ' + item), - (prev, item) => agent('s2 ' + item + ' after ' + prev), - ) - return out - `), - parent: fakeParent(), - }) - // Both items enter stage 1 concurrently. - await vi.waitFor(() => { expect(provider.runs.length).toBe(2) }) - // Settle only the FAST item's stage 1 → its stage 2 starts with no barrier. - provider.runs[1]!.settle(text('fast-1')) - await vi.waitFor(() => { expect(provider.runs.length).toBe(3) }) - expect((provider.runs[2]!.request.prompt[0] as { text: string }).text).toBe('s2 fast after fast-1') - // The slow item is still sitting in stage 1. - provider.runs[2]!.settle(text('fast-2')) - provider.runs[0]!.settle(text('slow-1')) - await vi.waitFor(() => { expect(provider.runs.length).toBe(4) }) - provider.runs[3]!.settle(text('slow-2')) - const result = await handle.result - expect(result.value).toEqual(['slow-2', 'fast-2']) - await handle.dispose() - void parent - }) - - it('pipeline stage callbacks receive (prev, item, index); an ordinary stage throw nulls the ITEM and skips its remaining stages', async () => { - const { ctx, parent, provider } = await setup({ reply: request => text(`ok:${(request.prompt[0] as { text: string }).text}`) }) - const result = await run(ctx, parent, script(` - const out = await pipeline([10, 20], - (prev, item, index) => { - if (item === 10) throw new Error('ordinary failure') - return agent('stage1-' + item + '-' + index) - }, - (prev) => agent('stage2 saw ' + prev), - ) - return out - `)) - expect(result.stopReason).toBe('completed') - const prompts = provider.runs.map(r => (r.request.prompt[0] as { text: string }).text) - // Item 10 never reached stage 1's agent nor stage 2. - expect(prompts).toEqual(['stage1-20-1', 'stage2 saw ok:stage1-20-1']) - expect(result.value).toEqual([null, 'ok:stage2 saw ok:stage1-20-1']) - }) - - it('parallel maps a throwing thunk to null and never rejects for ordinary errors', async () => { - const { ctx, parent } = await setup() - const result = await run(ctx, parent, script(` - return await parallel([ - () => { throw new Error('boom') }, - () => agent('fine'), - () => 'plain value', - () => { throw 'string throw' }, - () => { throw { name: 'WorkflowError', fatal: true, message: 'forged fatal' } }, - ]) - `)) - // The last entry probes fatality: it is recognized by host instanceof, - // which a script-built object can never pass — a WorkflowError-SHAPED - // throw is an ordinary null, and real fatality cannot be forged. - expect(result.value).toEqual([null, 'stub reply', 'plain value', null, null]) - }) - - it('FATAL errors propagate through parallel AND pipeline instead of dissolving into null', async () => { - const { ctx, parent } = await setup() - const viaParallel = await run(ctx, parent, script(` - return await parallel([() => agent('x', { isolation: 'worktree' })]) - `)) - expect(viaParallel.stopReason).toBe('error') - expect(viaParallel.error).toContain('"isolation" is deferred') - - const viaPipeline = await run(ctx, parent, script(` - return await pipeline([1], () => agent('x', { bogus: true })) - `)) - expect(viaPipeline.stopReason).toBe('error') - expect(viaPipeline.error).toContain('"bogus" is not recognized') - }) - - it('validates combinator arguments loudly (non-array, non-function, missing stages)', async () => { - const { ctx, parent } = await setup() - expect((await run(ctx, parent, script("return await parallel('no')"))).error).toContain('parallel() requires an array') - expect((await run(ctx, parent, script('return await parallel([3])'))).error).toContain('item 0 is not a function') - expect((await run(ctx, parent, script("return await pipeline('no', () => 1)"))).error).toContain('pipeline() requires an items array') - expect((await run(ctx, parent, script('return await pipeline([1])'))).error).toContain('at least one stage') - expect((await run(ctx, parent, script("return await pipeline([1], 'x')"))).error).toContain('stage 0 is not a function') - }) - }) - - describe('caps and option validation', () => { - it('trips the total-agent cap with a message naming the config knob', async () => { - const { ctx, parent } = await setup({ config: { provider: 'stub', maxTotalAgents: 2 } }) - const result = await run(ctx, parent, script(` - await agent('1'); await agent('2'); await agent('3') - return 'unreachable' - `)) + const result = await run(ctx, parent, script("return await parallel([() => agent('x', { isolation: 'worktree' })])")) expect(result.stopReason).toBe('error') - expect(result.error).toContain('total agent cap (2)') - expect(result.error).toContain('maxTotalAgents') - expect(result.agentsStarted).toBe(2) + expect(result.error).toContain('"isolation" is deferred') }) - it('trips the per-call item cap for parallel and pipeline', async () => { - const { ctx, parent } = await setup({ config: { provider: 'stub', maxItemsPerCall: 2 } }) - expect((await run(ctx, parent, script('return await parallel([() => 1, () => 2, () => 3])'))).error) - .toContain('over the per-call cap (2)') - expect((await run(ctx, parent, script('return await pipeline([1, 2, 3], (x) => x)'))).error) - .toContain('maxItemsPerCall') - }) - - it('enforces the concurrency ceiling: never more than maxConcurrentAgents children in flight', async () => { - const { ctx, parent, provider } = await setup({ manual: true, config: { provider: 'stub', maxConcurrentAgents: 2 } }) - const handle = ctx.workflows.start({ - script: script("return await parallel([1, 2, 3, 4, 5].map((n) => () => agent('job ' + n)))"), - parent, - }) - // Only 2 children may exist until one settles. - await vi.waitFor(() => { expect(provider.runs.length).toBe(2) }) - await new Promise(resolve => setTimeout(resolve, 20)) - expect(provider.runs.length).toBe(2) - // Settle children in arrival order; after each settle at most ONE more - // child may enter — the window never exceeds the ceiling. - for (let index = 0; index < 5; index++) { - await vi.waitFor(() => { expect(provider.runs.length).toBeGreaterThan(index) }) - expect(provider.runs.length).toBeLessThanOrEqual(Math.min(index + 2, 5)) - provider.runs[index]!.settle(text(`r${index}`)) - } - const result = await handle.result - expect(result.stopReason).toBe('completed') - expect(result.agentsStarted).toBe(5) - expect(result.value).toEqual(['r0', 'r1', 'r2', 'r3', 'r4']) - await handle.dispose() - }) - - it('rejects malformed agent() arguments and option types loudly', async () => { - const { ctx, parent } = await setup() - expect((await run(ctx, parent, script('return await agent(42)'))).error).toContain('non-empty prompt string') - expect((await run(ctx, parent, script("return await agent('')"))).error).toContain('non-empty prompt string') - expect((await run(ctx, parent, script("return await agent('p', 'opts')"))).error).toContain('options must be an object') - expect((await run(ctx, parent, script("return await agent('p', { label: 3 })"))).error).toContain('"label" must be a string') - expect((await run(ctx, parent, script("return await agent('p', { effort: 'high' })"))).error).toContain('"effort" is deferred') - }) - - it('rejects options whose property reads throw (materialization is loud, not silent)', async () => { - const { ctx, parent } = await setup() - const result = await run(ctx, parent, script("return await agent('p', { get label() { throw new Error('read failed') } })")) - expect(result.stopReason).toBe('error') - expect(result.error).toContain('options must be plain JSON data') - expect(result.error).toContain('read failed') - }) - - it('validates phase() and log() arguments loudly', async () => { - const { ctx, parent } = await setup() - expect((await run(ctx, parent, script('phase(3)'))).error).toContain('phase() requires a non-empty title string') - expect((await run(ctx, parent, script("phase('')"))).error).toContain('phase() requires a non-empty title string') - expect((await run(ctx, parent, script('log(3)'))).error).toContain('log() requires a message string') - }) - - it('rejects an unsupported schema via the shared subset assertion (UNSUPPORTED_SCHEMA)', async () => { - const { ctx, parent } = await setup() - const result = await run(ctx, parent, script("return await agent('p', { schema: { type: 'object', oneOf: [] } })")) - expect(result.stopReason).toBe('error') - expect(result.error).toContain('outside the supported subset') - expect(result.error).toContain('oneOf') - }) - - it('wraps a provider start failure as a fatal AGENT_START error (a missing provider cannot dissolve into null)', async () => { + it('a provider start failure crosses back as a fatal AGENT_START error', async () => { const { ctx, parent } = await setup({ config: { provider: 'nonexistent' } }) const result = await run(ctx, parent, script("return await pipeline([1], () => agent('p'))")) expect(result.stopReason).toBe('error') - expect(result.error).toContain('could not start a child on provider "nonexistent"') - }) - }) - - describe('the value boundary', () => { - it('args are cloned at start: a script scribbling on them cannot mutate the caller\'s object', async () => { - const { ctx, parent } = await setup() - const hostArgs = { files: ['a.ts'], nested: { deep: [1, 2] } } - const result = await run(ctx, parent, script(` - args.files.push('b.ts') - return { count: args.files.length, deep: args.nested.deep[1] } - `), hostArgs) - expect(result.value).toEqual({ count: 2, deep: 2 }) - // The caller's object is untouched (the engine cloned args host-side). - expect(hostArgs.files).toEqual(['a.ts']) + expect(result.error).toContain('agent() could not start a child') }) - it('scalar/null args pass through directly; absent args leave the global undefined', async () => { - const { ctx, parent } = await setup() - expect((await run(ctx, parent, script('return args * 2'), 21)).value).toBe(42) - expect((await run(ctx, parent, script('return args === null'), null)).value).toBe(true) - expect((await run(ctx, parent, script('return typeof args'))).value).toBe('undefined') - }) - - it('hook failures reach the script as HOST WorkflowErrors: fields readable, in-realm instanceof Error is false', async () => { - const { ctx, parent } = await setup() - const result = await run(ctx, parent, script(` - try { - await agent('p', { bogus: true }) - return 'unreachable' - } catch (e) { - // The documented consequence of the trust premise: hook errors are - // host objects, so realm instanceof is false — read the fields. - return { isRealmError: e instanceof Error, name: e.name, code: e.code, fatal: e.fatal, message: e.message } - } - `)) - expect(result.stopReason).toBe('completed') - expect(result.value).toMatchObject({ isRealmError: false, name: 'WorkflowError', code: 'UNSUPPORTED_OPTION', fatal: true }) - expect((result.value as { message: string }).message).toContain('"bogus" is not recognized') - }) - - it('a rejecting provider result is an infrastructure fault: fatal AGENT_RESULT, agent-end paired, no combinator dissolve', async () => { + it('a child result REJECTION crosses back as a fatal AGENT_RESULT error (a broken provider is not a failed child)', async () => { const ctx = new Context() await ctx.plugin(SubagentService) const provider: SubagentProvider = { @@ -465,184 +199,90 @@ describe('dsh-workflow-vm', () => { }), } ctx.subagents.registerProvider(provider) - await ctx.plugin(VmWorkflowEngine, { provider: 'rejecting' }) - const ends: unknown[] = [] - ctx.on('workflow/agent-end', (_info, agent) => { ends.push(agent) }) - // Direct await: the script reads the typed fields (a host object, so - // realm instanceof is false — same as every hook failure). - const direct = await run(ctx, fakeParent(), script(` + await ctx.plugin(WorkerWorkflowEngine, { provider: 'rejecting', maxConcurrentAgents: 2 }) + const result = await run(ctx, fakeParent(), script(` try { await agent('p'); return 'unreachable' } catch (e) { return { name: e.name, code: e.code, fatal: e.fatal, message: e.message } } `)) - expect(direct.value).toMatchObject({ name: 'WorkflowError', code: 'AGENT_RESULT', fatal: true }) - expect((direct.value as { message: string }).message).toContain('backend exploded') - // The child's lifecycle stays paired even though result never resolved. - expect(ends).toEqual([expect.objectContaining({ seq: 1, outcome: 'failed' })]) - // Through a combinator the fault PROPAGATES (fatal) — a broken provider - // must not dissolve into the per-item null and read as a failed child. - const throughParallel = await run(ctx, fakeParent(), script("return await parallel([() => agent('p')])")) - expect(throughParallel.stopReason).toBe('error') - expect(throughParallel.error).toContain('backend exploded') + expect(result.value).toMatchObject({ name: 'WorkflowError', code: 'AGENT_RESULT', fatal: true }) + expect((result.value as { message: string }).message).toContain('backend exploded') }) - it('phase()/log() throw host WorkflowErrors synchronously on misuse', async () => { - const { ctx, parent } = await setup() - const result = await run(ctx, parent, script(` - try { phase(3) } catch (e) { - if (e.name !== 'WorkflowError') throw e - } - try { log(3) } catch (e) { - return { name: e.name, message: e.message } - } - `)) - expect(result.value).toMatchObject({ name: 'WorkflowError' }) - expect((result.value as { message: string }).message).toContain('log() requires') + it('a child whose dispose() rejects cannot wedge the script (the host acks anyway)', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const provider: SubagentProvider = { + name: 'bad-dispose', + capabilities: { outputSchema: true, depthLimit: true, toolFilter: true }, + inheritsParentContext: false, + start: () => ({ + id: AgentId('bad-dispose-child'), + result: Promise.resolve({ output: [{ type: 'text', text: 'fine' }], stopReason: 'completed' }), + cancel: () => { /* settled already */ }, + dispose: () => Promise.reject(new Error('dispose exploded')), + }), + } + ctx.subagents.registerProvider(provider) + await ctx.plugin(WorkerWorkflowEngine, { provider: 'bad-dispose', maxConcurrentAgents: 2 }) + const result = await run(ctx, fakeParent(), script("return await agent('p')")) + expect(result.stopReason).toBe('completed') + expect(result.value).toBe('fine') }) - it('a returned value whose property reads throw fails loud as RESULT_UNSERIALIZABLE', async () => { - const { ctx, parent } = await setup() - const result = await run(ctx, parent, script(` - return { get a() { throw new Error('read failed') } } - `)) - expect(result.stopReason).toBe('error') - expect(result.error).toContain('not plain JSON data') - expect(result.error).toContain('read failed') - }) - - it('a non-JSON return value fails loud as RESULT_UNSERIALIZABLE', async () => { - const { ctx, parent } = await setup() - const withDate = await run(ctx, parent, script('return { when: new Date(0) }')) - expect(withDate.stopReason).toBe('error') - expect(withDate.error).toContain('not plain JSON data') - const withFn = await run(ctx, parent, script('return { fn: () => 1 }')) - expect(withFn.error).toContain('not plain JSON data') - }) - - it('kills a synchronous spin in the initial slice via the vm timeout', async () => { - const { ctx, parent } = await setup({ config: { provider: 'stub', syncTimeoutMs: 50 } }) - const result = await run(ctx, parent, script('while (true) {}')) - expect(result.stopReason).toBe('error') - expect(result.error?.toLowerCase()).toContain('timed out') + it('a child dispose() rejecting an UNRENDERABLE value still acks — the containment warn is total', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const provider: SubagentProvider = { + name: 'coercion-trap-dispose', + capabilities: { outputSchema: true, depthLimit: true, toolFilter: true }, + inheritsParentContext: false, + start: () => ({ + id: AgentId('trap-child'), + result: Promise.resolve({ output: [{ type: 'text', text: 'fine' }], stopReason: 'completed' }), + cancel: () => { /* settled already */ }, + // The rejection VALUE's own coercion throws: a warn built with bare + // String(error) would itself throw, skipping the ChildDisposed ack + // and wedging the script's finally until the grace/terminate path. + // eslint-disable-next-line @typescript-eslint/prefer-promise-reject-errors -- the non-Error rejection IS the scenario under test + dispose: () => Promise.reject({ toString: () => { throw new Error('coercion trap') } }), + }), + } + ctx.subagents.registerProvider(provider) + await ctx.plugin(WorkerWorkflowEngine, { provider: 'coercion-trap-dispose', maxConcurrentAgents: 2 }) + const result = await run(ctx, fakeParent(), script("return await agent('p')")) + expect(result.stopReason).toBe('completed') + expect(result.value).toBe('fine') }) }) - describe('lifecycle: parse errors, cancellation, disposal', () => { - it('start() throws synchronously for an unparseable script or invalid meta', async () => { + describe('lifecycle: parse errors, cancellation, termination, disposal', () => { + it('start() throws synchronously for an unparseable script or invalid meta (host-side pre-parse)', async () => { const { ctx, parent } = await setup() expect(() => ctx.workflows.start({ script: 'const x = 1', parent })).toThrow(/must begin with/) expect(() => ctx.workflows.start({ script: script('return ((('), parent })).toThrow(/does not parse/) }) - it('cancel() aborts in-flight children and settles the run cancelled', async () => { + it('cancel() aborts in-flight children (signal AND cancel RPC) and settles the run cancelled', async () => { const { ctx, parent, provider } = await setup({ manual: true }) - const ends: WorkflowResultInfo[] = [] - ctx.on('workflow/end', (_info, result) => { ends.push(result) }) + const ends: unknown[] = [] + ctx.on('workflow/agent-end', (_info, agent) => { ends.push(agent) }) + const runEnds: WorkflowResultInfo[] = [] + ctx.on('workflow/end', (_info, result) => { runEnds.push(result) }) const handle = ctx.workflows.start({ script: script("return await agent('long job')"), parent }) await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) handle.cancel('user stopped it') const result = await handle.result expect(result.stopReason).toBe('cancelled') expect(result.error).toContain('user stopped it') + await handle.dispose() expect(provider.runs[0]!.disposed).toBe(true) + expect(ends).toEqual([expect.objectContaining({ seq: 1, outcome: 'cancelled' })]) // workflow/end is an observer's only death signal: it fires for a // cancelled run too, mirroring the settled outcome data. - expect(ends).toEqual([{ stopReason: 'cancelled', error: result.error, agentsStarted: 1 }]) - await handle.dispose() + expect(runEnds).toEqual([{ stopReason: 'cancelled', error: result.error, agentsStarted: result.agentsStarted }]) }) - it('cancellation bridges to run.cancel() on every in-flight child, not just the request signal', async () => { - const { ctx, parent, provider } = await setup({ manual: true }) - const handle = ctx.workflows.start({ - script: script("return await parallel([() => agent('a'), () => agent('b')])"), - parent, - }) - await vi.waitFor(() => { expect(provider.runs.length).toBe(2) }) - handle.cancel('bridged') - expect((await handle.result).stopReason).toBe('cancelled') - // The seam leaves a provider free to honor run.cancel() rather than the - // request signal, so the engine must drive BOTH channels per child. - expect(provider.runs.map(r => r.cancelled)).toEqual(['bridged', 'bridged']) - await handle.dispose() - }) - - it('a provider whose result REJECTS on abort still gets a paired cancelled agent-end, and the run reports cancelled', async () => { - const ctx = new Context() - await ctx.plugin(SubagentService) - // The seam allows result to reject for infrastructure faults; a backend - // that tears down uncleanly on abort exercises the rejection path WHILE - // the run is cancelled — which must stay a cancellation, not AGENT_RESULT. - const provider: SubagentProvider = { - name: 'reject-on-abort', - capabilities: { outputSchema: true, depthLimit: true, toolFilter: true }, - inheritsParentContext: false, - start: request => ({ - id: AgentId('crashing-child'), - result: new Promise((_, reject) => { - request.signal?.addEventListener('abort', () => { reject(new Error('backend crashed on abort')) }, { once: true }) - }), - cancel: () => { /* the signal listener above is the teardown */ }, - dispose: () => Promise.resolve(), - }), - } - ctx.subagents.registerProvider(provider) - await ctx.plugin(VmWorkflowEngine, { provider: 'reject-on-abort' }) - const starts: unknown[] = [] - const ends: unknown[] = [] - ctx.on('workflow/agent-start', (_info, agent) => { starts.push(agent) }) - ctx.on('workflow/agent-end', (_info, agent) => { ends.push(agent) }) - const handle = ctx.workflows.start({ script: script("return await agent('doomed')"), parent: fakeParent() }) - await vi.waitFor(() => { expect(starts.length).toBe(1) }) - handle.cancel('user aborted') - const result = await handle.result - expect(result.stopReason).toBe('cancelled') - expect(result.error).toContain('user aborted') - expect(ends).toEqual([expect.objectContaining({ seq: 1, outcome: 'cancelled' })]) - await handle.dispose() - }) - - it('after cancellation EVERY hook throws at entry — phase/log/parallel/pipeline, not just agent()', async () => { - const { ctx, parent, provider } = await setup({ manual: true }) - let cancelled = false - const postCancel: string[] = [] - ctx.on('workflow/phase', (_info, title) => { if (cancelled) postCancel.push(`phase:${title}`) }) - ctx.on('workflow/log', (_info, message) => { if (cancelled) postCancel.push(`log:${message}`) }) - const handle = ctx.workflows.start({ - // The script survives each throw by catching, so every guarded hook is - // actually ATTEMPTED after the cancel; the run still reports cancelled. - script: script(` - phase('before') - try { await agent('x') } catch (e) {} - try { phase('after') } catch (e) {} - try { log('after') } catch (e) {} - try { await parallel([() => 'ran']) } catch (e) {} - try { await pipeline(['item'], p => p) } catch (e) {} - return 'survived by catching' - `), - parent, - }) - await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) - cancelled = true - handle.cancel('stop everything') - const result = await handle.result - expect(result.stopReason).toBe('cancelled') - // No post-cancel progress ever reached observers, and no child started. - expect(postCancel).toEqual([]) - expect(provider.runs.length).toBe(1) - await handle.dispose() - }) - - it('an already-aborted request signal cancels before any child starts', async () => { - const { ctx, parent, provider } = await setup({ manual: true }) - const controller = new AbortController() - controller.abort() - const handle = ctx.workflows.start({ script: script("return await agent('never')"), parent, signal: controller.signal }) - const result = await handle.result - expect(result.stopReason).toBe('cancelled') - expect(provider.runs.length).toBe(0) - await handle.dispose() - }) - - it('an already-aborted signal cancels a HOOK-FREE script: the body never runs at all', async () => { - const { ctx, parent } = await setup() + it('an already-aborted request signal cancels before the body ever runs (the go handshake holds it)', async () => { + const { ctx, parent, provider } = await setup() const controller = new AbortController() controller.abort() const logs: string[] = [] @@ -652,151 +292,80 @@ describe('dsh-workflow-vm', () => { expect(result.stopReason).toBe('cancelled') expect(result.value).toBeNull() expect(logs).toEqual([]) + expect(provider.runs.length).toBe(0) await handle.dispose() }) - it('cancel() right after start() reports cancelled even when the script needed no hooks', async () => { - const { ctx, parent } = await setup() - const handle = ctx.workflows.start({ script: script('return 123'), parent }) - handle.cancel('changed my mind') - const result = await handle.result - expect(result.stopReason).toBe('cancelled') - expect(result.value).toBeNull() - expect(result.error).toContain('changed my mind') - await handle.dispose() - }) - - it('an agent() call AFTER a mid-run cancel rejects at entry — no child ever starts', async () => { + it('cancel() right after start() cancels before the body runs; the signal aborting mid-run cancels like cancel()', async () => { const { ctx, parent, provider } = await setup({ manual: true }) - const handle = ctx.workflows.start({ - script: script(` - await agent('first') - return await agent('second') - `), - parent, - }) - await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) - // Same synchronous block: the first child settles completed, then the - // cancel lands BEFORE the script's continuation can call agent() again. - provider.runs[0]!.settle(text('first done')) - handle.cancel('mid-run') - const result = await handle.result - expect(result.stopReason).toBe('cancelled') - expect(provider.runs.length).toBe(1) - await handle.dispose() - }) + const first = ctx.workflows.start({ script: script("return await agent('never')"), parent }) + // No-reason cancel: the canonical default reason must ride the result. + first.cancel() + const firstResult = await first.result + expect(firstResult.stopReason).toBe('cancelled') + expect(firstResult.error).toContain('workflow cancelled') + expect(provider.runs.length).toBe(0) + await first.dispose() - it('the signal aborting mid-run cancels like cancel()', async () => { - const { ctx, parent, provider } = await setup({ manual: true }) const controller = new AbortController() - const handle = ctx.workflows.start({ script: script("return await agent('job')"), parent, signal: controller.signal }) + const second = ctx.workflows.start({ script: script("return await agent('job')"), parent, signal: controller.signal }) await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) controller.abort() - const result = await handle.result - expect(result.stopReason).toBe('cancelled') - await handle.dispose() + expect((await second.result).stopReason).toBe('cancelled') + await second.dispose() }) - it('reports a non-Error script throw (a thrown string) faithfully', async () => { - const { ctx, parent } = await setup() - const result = await run(ctx, parent, script("throw 'plain string failure'")) - expect(result.stopReason).toBe('error') - expect(result.error).toContain('plain string failure') - }) - - it('a script Error surfaces its stack, carrying the script line numbers (lineOffset)', async () => { - const { ctx, parent } = await setup() - const result = await run(ctx, parent, script("throw new Error('with stack')")) - expect(result.stopReason).toBe('error') - // Line 1 is the blanked meta statement; the throw sits on line 2. - expect(result.error).toContain('workflow:test-flow:2') - }) - - it('an object throw with neither stack nor message stringifies', async () => { - const { ctx, parent } = await setup() - const result = await run(ctx, parent, script('throw { code: 42 }')) - expect(result.stopReason).toBe('error') - expect(result.error).toBe('[object Object]') - }) - - it('falls back to the message for an Error whose stack was stripped', async () => { - const { ctx, parent } = await setup() - const result = await run(ctx, parent, script(` - const e = new Error('stackless failure') - e.stack = undefined - throw e - `)) - expect(result.stopReason).toBe('error') - expect(result.error).toBe('stackless failure') - }) - - it('cancel() in the same frame as start(): the awaited slot tick cannot start a child', async () => { + it('a child-start racing the host cancel is refused: no child starts after cancellation', async () => { const { ctx, parent, provider } = await setup({ manual: true }) - // agent() enters during start()'s synchronous slice and suspends on the - // acquireSlot await (one microtask tick even with a free slot); the - // synchronous cancel below lands in that tick. Without the post-acquire - // re-check the continuation would start a child carrying an ALREADY- - // aborted signal — which the stub provider (subscribing only to future - // abort events, like a real backend) would never settle, leaking it. - const handle = ctx.workflows.start({ script: script("return await agent('never')"), parent }) - handle.cancel('immediately after start') + // Cancel from INSIDE the log listener: the worker has already posted + // its child-start (queued right behind the log message), so the host + // processes it with cancelReason set — the refusal arm no real-world + // timing can hit reliably. (The closure runs only after `handle` below + // is initialized — the listener fires on the worker's first message.) + ctx.on('workflow/log', () => { handle.cancel('cancelled from the log listener') }) + const handle = ctx.workflows.start({ script: script("log('mark')\nreturn await agent('late')"), parent }) const result = await handle.result expect(result.stopReason).toBe('cancelled') expect(provider.runs.length).toBe(0) await handle.dispose() }) - it('a waiter resumed by a release RACING a cancel still dies at the post-acquire check', async () => { - const { ctx, parent, provider } = await setup({ manual: true, config: { provider: 'stub', maxConcurrentAgents: 1 } }) + it('post-cancel narration is suppressed host-side, and completion racing a cancel reports cancelled', async () => { + const { ctx, parent } = await setup() + const narration: string[] = [] + ctx.on('workflow/log', (_info, message) => { narration.push(message) }) + ctx.on('workflow/phase', (_info, title) => { narration.push(`phase:${title}`) }) const handle = ctx.workflows.start({ - script: script("return await parallel([() => agent('a'), () => agent('b')])"), + // The sync spin keeps the worker's loop busy so the cancel message + // cannot be processed before the script settles `completed` — the + // worker posts a completed result that must LOSE to the in-flight + // host cancellation. The trailing narration exercises host-side + // suppression: posted pre-cancel-processing worker-side, arriving + // post-cancel host-side. + script: script(` + log('started') + const end = Date.now() + 1000 + while (Date.now() < end) {} + phase('late phase') + log('late log') + return 'done' + `), parent, }) - await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) - // Same synchronous block: b is still a QUEUED waiter when the cancel - // lands, so cancel() rejects it outright; together with the immediate- - // cancel test above (the resumed-waiter tick), no post-cancel path can - // reach subagents.start. - provider.runs[0]!.settle(text('a-done')) - handle.cancel('raced') + await vi.waitFor(() => { expect(narration).toContain('started') }) + handle.cancel('raced the completion') const result = await handle.result expect(result.stopReason).toBe('cancelled') - expect(provider.runs.length).toBe(1) + expect(result.error).toContain('raced the completion') + expect(narration).toEqual(['started']) await handle.dispose() - }) + }, 15_000) - it('a dropped agent() promise cannot become an unhandled rejection when cancellation lands', async () => { - const unhandled: unknown[] = [] - const onUnhandled = (reason: unknown): void => { unhandled.push(reason) } - process.on('unhandledRejection', onUnhandled) - try { - const { ctx, parent, provider } = await setup({ manual: true }) - const handle = ctx.workflows.start({ - script: script(` - agent('dropped, never awaited') - return await agent('awaited') - `), - parent, - }) - await vi.waitFor(() => { expect(provider.runs.length).toBe(2) }) - handle.cancel() - await handle.result - await handle.dispose() - // Let any stray rejection reach the process hook before asserting. - await new Promise(resolve => setTimeout(resolve, 20)) - expect(unhandled).toEqual([]) - } finally { - process.off('unhandledRejection', onUnhandled) - } - }) - - it('cancel() force-settles the result of a script parked on a promise no hook owns', async () => { - const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: 30 } }) - const ends: WorkflowResultInfo[] = [] - ctx.on('workflow/end', (_info, result) => { ends.push(result) }) + it('cancel() force-settles a script parked on a promise no hook owns, and TERMINATES its worker', async () => { + const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: 50 } }) + const runEnds: WorkflowResultInfo[] = [] + ctx.on('workflow/end', (_info, result) => { runEnds.push(result) }) const handle = ctx.workflows.start({ - // No hooks involved: an unsettleable await cancellation cannot reject - // — the abandon grace is the only thing that can settle this run. script: script("await new Promise(() => {})\nreturn 'unreachable'"), parent, }) @@ -805,31 +374,20 @@ describe('dsh-workflow-vm', () => { expect(result.stopReason).toBe('cancelled') expect(result.error).toContain('user aborted') // The grace force-settle fires workflow/end exactly like an ordinary - // settlement — an abandoned script's death still reaches observers. - expect(ends).toEqual([{ stopReason: 'cancelled', error: result.error, agentsStarted: 0 }]) + // settlement — a terminated script's death still reaches observers. + expect(runEnds).toEqual([{ stopReason: 'cancelled', error: result.error, agentsStarted: 0 }]) await handle.dispose() }) - it('a never-settling returned thenable is abandoned the same way', async () => { - const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: 30 } }) - const handle = ctx.workflows.start({ script: script('return { then() {} }'), parent }) - handle.cancel() - expect((await handle.result).stopReason).toBe('cancelled') - await handle.dispose() - }) - - it('dispose() abandons a stuck script after the grace instead of hanging (result settles cancelled)', async () => { - const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: 30 } }) + it('dispose() on a stuck script returns within the grace instead of hanging (result settles cancelled)', async () => { + const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: 50 } }) const handle = ctx.workflows.start({ script: script("await new Promise(() => {})\nreturn 'unreachable'"), parent, }) const before = Date.now() await handle.dispose() - expect(Date.now() - before).toBeLessThan(1000) - // The abandon that freed dispose() also settled result — a consumer - // still awaiting it (the tool does, before its disposing finally) is - // released rather than wedged forever. + expect(Date.now() - before).toBeLessThan(2000) const result = await handle.result expect(result.stopReason).toBe('cancelled') }) @@ -842,25 +400,28 @@ describe('dsh-workflow-vm', () => { await handle.dispose() }) - it('strays: children fired without await are aborted once the script settles', async () => { - const { ctx, parent, provider } = await setup({ manual: true }) - const handle = ctx.workflows.start({ - script: script(` - agent('stray') - return 'done without awaiting' - `), - parent, - }) - const result = await handle.result - expect(result.stopReason).toBe('completed') - await vi.waitFor(() => { - expect(provider.runs.length).toBe(1) - expect(provider.runs[0]!.disposed).toBe(true) - }) - await handle.dispose() + it('a settled run arms NO grace timer: disposing a completed run must not pin it for disposeGraceMs', async () => { + // A distinctive grace so the spy can tell the cancel-path grace timer + // apart from every other timeout in flight. + const GRACE = 44_444 + const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: GRACE } }) + const handle = ctx.workflows.start({ script: script('return 1'), parent }) + await handle.result + const spy = vi.spyOn(globalThis, 'setTimeout') + try { + await handle.dispose() + // dispose()'s own bounded-wait sleep is the ONLY grace-sized timer + // allowed here; before the settled guard, cancel() armed a second one + // that nothing would ever clear (the run was already settled), keeping + // the WorkerRun/Worker closure alive until the grace expired. + const graceTimers = spy.mock.calls.filter(call => call[1] === GRACE) + expect(graceTimers.length).toBe(1) + } finally { + spy.mockRestore() + } }) - it('dispose() waits for a stray child to FINISH disposing (quiescence), not just the script settle', async () => { + it('strays: children fired without await are aborted once the script settles, and dispose() waits for their disposal', async () => { const { ctx, parent, provider } = await setup({ manual: true, disposeDelayMs: 40 }) const handle = ctx.workflows.start({ script: script(` @@ -871,12 +432,222 @@ describe('dsh-workflow-vm', () => { }) const result = await handle.result expect(result.stopReason).toBe('completed') - expect(provider.runs.length).toBe(1) + await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) await handle.dispose() // Not a waitFor: by the time dispose() returns, the slow child disposal - // must already be complete. + // must already be complete (host-side registry quiescence). expect(provider.runs[0]!.disposed).toBe(true) }) + + it('the settle-reap fires the request signal too: a provider honoring ONLY the signal winds its stray down promptly', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const aborted: string[] = [] + const provider: SubagentProvider = { + name: 'signal-only', + capabilities: { outputSchema: true, depthLimit: true, toolFilter: true }, + inheritsParentContext: false, + start: (request) => { + let settle!: (result: SubagentResult) => void + const result = new Promise((resolve) => { settle = resolve }) + request.signal?.addEventListener('abort', () => { + aborted.push(String(request.signal?.reason)) + settle({ output: [], stopReason: 'aborted' }) + }, { once: true }) + return { + id: AgentId('signal-only-child'), + result, + // The seam leaves a provider free to honor EITHER cancel channel; + // this one deliberately ignores run.cancel() — only the request + // signal can wind it down. + cancel: () => { /* signal-only by design */ }, + dispose: () => Promise.resolve(), + } + }, + } + ctx.subagents.registerProvider(provider) + await ctx.plugin(WorkerWorkflowEngine, { provider: 'signal-only', maxConcurrentAgents: 2 }) + const handle = ctx.workflows.start({ + script: script(` + agent('stray, never awaited') + return 'done' + `), + parent: fakeParent(), + }) + const result = await handle.result + expect(result.stopReason).toBe('completed') + // BEFORE dispose(): the settlement itself must have aborted the signal — + // without it this child would stay live until dispose's terminate. + await vi.waitFor(() => { expect(aborted).toEqual(['workflow settled']) }) + await handle.dispose() + }) + + it("cancel() drives each child's explicit cancel() host-side: a wedged worker cannot delay it", async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + let starts = 0 + const cancelled: string[] = [] + const provider: SubagentProvider = { + name: 'cancel-only', + capabilities: { outputSchema: true, depthLimit: true, toolFilter: true }, + inheritsParentContext: false, + start: () => { + starts += 1 + return { + id: AgentId('cancel-only-child'), + result: new Promise(() => { /* only cancel() ends this child */ }), + // Deliberately ignores the request signal — the seam leaves a + // provider free to honor ONLY the explicit cancel() channel. + cancel: (reason?: string) => { cancelled.push(reason ?? 'cancelled') }, + dispose: () => Promise.resolve(), + } + }, + } + ctx.subagents.registerProvider(provider) + // A deliberately huge grace: if only the grace/terminate reap could + // reach this child, the assertion below would time out first. + await ctx.plugin(WorkerWorkflowEngine, { provider: 'cancel-only', maxConcurrentAgents: 2, disposeGraceMs: 30_000 }) + const handle = ctx.workflows.start({ + // The stray child's start RPC reaches the host, then the script wedges + // its own worker in a synchronous spin: the worker cannot process the + // Cancel message, so it can relay NO ChildCancel RPC — only the host's + // own children loop can deliver the explicit cancel in time. + script: script(` + agent('wedged child') + const end = Date.now() + 1500 + while (Date.now() < end) {} + return 'raced' + `), + parent: fakeParent(), + }) + await vi.waitFor(() => { expect(starts).toBe(1) }) + handle.cancel('stop now') + await vi.waitFor(() => { expect(cancelled).toEqual(['stop now']) }, { timeout: 800 }) + // The wedged worker's own completion loses to the in-flight cancel. + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + await handle.dispose() + }, 15_000) + }) + + describe('worker death', () => { + it('a worker that exits before settling reports an error result and reaps its children', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + // The child's dispose() REJECTS on top of the worker death: the reap + // must contain it (warn, not crash) while still emptying the registry. + const cancelled: string[] = [] + const provider: SubagentProvider = { + name: 'doomed', + capabilities: { outputSchema: true, depthLimit: true, toolFilter: true }, + inheritsParentContext: false, + start: () => ({ + id: AgentId('doomed-child'), + result: new Promise(() => { /* never settles; the reap is the teardown */ }), + cancel: (reason?: string) => { cancelled.push(reason ?? 'cancelled') }, + dispose: () => Promise.reject(new Error('dispose exploded during reap')), + }), + } + ctx.subagents.registerProvider(provider) + await ctx.plugin(WorkerWorkflowEngine, { provider: 'doomed', maxConcurrentAgents: 2 }) + const runEnds: WorkflowResultInfo[] = [] + ctx.on('workflow/end', (_info, result) => { runEnds.push(result) }) + const handle = ctx.workflows.start({ + // The stray child's start RPC reaches the host, then the script kills + // its own worker through the documented vm escape — the host must + // settle `error` with the exit diagnostics and wind the child down. + script: script(` + agent('doomed') + const proc = ${ESCAPE} + const st = globalThis.constructor.constructor('return setTimeout')() + await new Promise(resolve => st(resolve, 200)) + proc.exit(7) + `), + parent: fakeParent(), + }) + const result = await handle.result + expect(result.stopReason).toBe('error') + expect(result.error).toContain('exit code 7') + expect(result.agentsStarted).toBe(1) + // A worker death is a stop reason like any other: workflow/end fires + // with the error outcome — for a bus observer it is the only obituary. + expect(runEnds).toEqual([{ stopReason: 'error', error: result.error, agentsStarted: 1 }]) + await vi.waitFor(() => { expect(cancelled.length).toBe(1) }) + await handle.dispose() + }, 15_000) + + it('an uncaught exception inside the worker surfaces as an error result and reaps the in-flight child', async () => { + const { ctx, parent, provider } = await setup({ manual: true }) + const handle = ctx.workflows.start({ + script: script(` + agent('in flight when the worker dies') + const proc = ${ESCAPE} + const st = globalThis.constructor.constructor('return setTimeout')() + await new Promise(resolve => st(resolve, 200)) + proc.nextTick(() => { throw new Error('worker blew up') }) + await new Promise(() => {}) + `), + parent, + }) + const result = await handle.result + expect(result.stopReason).toBe('error') + expect(result.error).toContain('worker blew up') + // The reap wound the stray child down (cancel + a CLEAN dispose). + await vi.waitFor(() => { + expect(provider.runs.length).toBe(1) + expect(provider.runs[0]!.disposed).toBe(true) + }) + await handle.dispose() + }, 15_000) + + it('a dispose ack racing the worker death is dropped, not crashed (post after exit)', async () => { + // Slow child disposal: the ack resolves only AFTER the worker died, so + // it has nowhere to go and must be dropped silently (the workerGone + // guard in post()). + const { ctx, parent, provider } = await setup({ disposeDelayMs: 300 }) + const handle = ctx.workflows.start({ + // The STRAY child settles instantly, so its wrapper starts the slow + // host-side disposal concurrently while the script goes on to kill + // its own worker — the ack then resolves into a dead thread. + script: script(` + agent('stray, never awaited') + const proc = ${ESCAPE} + const st = globalThis.constructor.constructor('return setTimeout')() + await new Promise(resolve => st(resolve, 150)) + proc.exit(5) + `), + parent, + }) + const result = await handle.result + expect(result.stopReason).toBe('error') + expect(result.error).toContain('exit code 5') + await vi.waitFor(() => { expect(provider.runs[0]!.disposed).toBe(true) }) + await handle.dispose() + }, 15_000) + + it('a worker death AFTER a cancel reports cancelled, not error', async () => { + const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: 60_000 } }) + const handle = ctx.workflows.start({ + script: script(` + const proc = ${ESCAPE} + const st = globalThis.constructor.constructor('return setTimeout')() + log('armed') + await new Promise(resolve => st(resolve, 400)) + proc.exit(3) + `), + parent, + }) + const logs: string[] = [] + ctx.on('workflow/log', (_info, message) => { logs.push(message) }) + await vi.waitFor(() => { expect(logs).toContain('armed') }) + handle.cancel('stop it') + // The grace is deliberately huge: only the worker's own death (exit 3, + // unreachable by the cancel — the script ignores hooks) settles this. + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + expect(result.error).toContain('stop it') + await handle.dispose() + }, 15_000) }) describe('service surface', () => { @@ -887,7 +658,6 @@ describe('dsh-workflow-vm', () => { const first = ctx.workflows.start({ script: script('return 1'), parent }) const second = ctx.workflows.start({ script: script('return 2'), parent }) expect(first.id).not.toBe(second.id) - // Mutating a listener's snapshot cannot corrupt the holder's view. eventMeta!.meta.name = 'corrupted' expect(second.meta.name).toBe('test-flow') await Promise.all([first.result, second.result]) @@ -895,38 +665,24 @@ describe('dsh-workflow-vm', () => { await second.dispose() }) - it('a listener mutating one event payload cannot corrupt later events (per-emission snapshots)', async () => { - const { ctx, parent } = await setup() - const ends: unknown[] = [] - let endInfo: WorkflowRunInfo | undefined - ctx.on('workflow/agent-start', (info, agent) => { - agent.seq = 999 - agent.label = 'HACKED' - info.meta.name = 'HACKED' - }) - ctx.on('workflow/agent-end', (info, agent) => { - ends.push(agent) - endInfo = info - }) - await run(ctx, parent, script("return await agent('job', { label: 'honest' })")) - expect(ends[0]).toMatchObject({ seq: 1, label: 'honest', outcome: 'completed' }) - expect(endInfo!.meta.name).toBe('test-flow') - }) - - it('unregisters ctx.workflows when the engine fiber is disposed (HMR safety)', async () => { + it('unregisters ctx.workflows when the engine fiber is disposed (HMR safety), and default config runs (auto concurrency)', async () => { const ctx = new Context() await ctx.plugin(SubagentService) - const fiber = await ctx.plugin(VmWorkflowEngine, {}) + const fiber = await ctx.plugin(WorkerWorkflowEngine, {}) expect(ctx.get('workflows')).toBeDefined() + // A zero-agent run through the DEFAULT config exercises the auto + // concurrency resolution (cores - 2, capped) in start(). + const result = await run(ctx, fakeParent(), script('return 6 * 7')) + expect(result.value).toBe(42) await fiber.dispose() expect(ctx.get('workflows')).toBeUndefined() }) it('has the class-plugin export shape (default = the engine service class)', () => { - expect(vmEngineModule.default).toBe(VmWorkflowEngine) + expect(workerEngineModule.default).toBe(WorkerWorkflowEngine) const loader = Object.create(Loader.prototype) as Loader - const unwrapped: unknown = loader.unwrapExports(vmEngineModule) - expect(unwrapped).toBe(VmWorkflowEngine) + const unwrapped: unknown = loader.unwrapExports(workerEngineModule) + expect(unwrapped).toBe(WorkerWorkflowEngine) }) }) }) diff --git a/packages/workflow/workflow-vm/tests/workflow.e2e.ts b/packages/workflow/workflow-vm/tests/workflow.e2e.ts index c3f959d072..76cfd73d33 100644 --- a/packages/workflow/workflow-vm/tests/workflow.e2e.ts +++ b/packages/workflow/workflow-vm/tests/workflow.e2e.ts @@ -9,16 +9,14 @@ import AgentLoop from '@deepseek-ai/dsh-agent-loop' import * as LlmDeepSeek from '@deepseek-ai/dsh-llm-deepseek' import SubagentService from '@deepseek-ai/dsh-subagent' import * as Spawn from '@deepseek-ai/dsh-subagent-spawn' -import * as ToolWorkflow from '@deepseek-ai/dsh-tool-workflow' -import { CallId } from '@deepseek-ai/dsh-llm' -import VmWorkflowEngine from '../src/index.ts' +import WorkerWorkflowEngine from '../src/index.ts' /** - * With-key e2e for the workflow engine: a REAL script drives REAL spawn - * children against the live DeepSeek API — one plain child and one schema'd - * child through the real structured-output runtime — and the run's value, - * events, and child sessions are asserted from the outside (never the - * script's self-report alone). Key-gated (self-skips without + * With-key e2e: a REAL script in a REAL worker thread + * drives REAL spawn children against the live DeepSeek API — one plain child + * and one schema'd child through the real structured-output runtime — and + * the run's value, events, and child sessions are asserted from the outside + * (never the script's self-report alone). Key-gated (self-skips without * DEEPSEEK_API_KEY). */ @@ -40,14 +38,13 @@ async function harness(): Promise { await built.plugin(LlmDeepSeek, { models: ['deepseek-v4-flash'] }) await built.plugin(SubagentService) await built.plugin(Spawn, { providerName: 'spawn' }) - await built.plugin(VmWorkflowEngine, { provider: 'spawn' }) - await built.plugin(ToolWorkflow, {}) + await built.plugin(WorkerWorkflowEngine, { provider: 'spawn' }) return built } const SCRIPT = `export const meta = { - name: 'e2e-arithmetic', - description: 'two real children: one prose, one structured', + name: 'e2e-worker-arithmetic', + description: 'two real children through a worker thread: one prose, one structured', phases: [{ title: 'Ask' }, { title: 'Judge' }], } phase('Ask') @@ -61,12 +58,12 @@ const judged = await agent( ) return { prose, containsFour: judged === null ? null : judged.containsFour }` -describe.skipIf(!process.env.DEEPSEEK_API_KEY)('workflow engine with-key e2e', () => { - it('runs a two-phase script over real children, one through the structured runtime', async () => { +describe.skipIf(!process.env.DEEPSEEK_API_KEY)('worker workflow engine with-key e2e', () => { + it('runs a two-phase script in a worker thread over real children, one through the structured runtime', async () => { ctx = await harness() const parentHandle = ctx.agents.create({ - agentId: AgentId('wf-e2e-parent'), - sessionId: 'wf-e2e-session' as never, + agentId: AgentId('wf-worker-e2e-parent'), + sessionId: 'wf-worker-e2e-session' as never, agentOptions: { model: 'deepseek-v4-flash' }, }) @@ -102,30 +99,4 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('workflow engine with-key e2e', ( } await parentHandle.dispose() }, 240_000) - - it('the workflow TOOL runs the same path through the real registry pipeline', async () => { - ctx = await harness() - const parentHandle = ctx.agents.create({ - agentId: AgentId('wf-e2e-tool-parent'), - sessionId: 'wf-e2e-tool-session' as never, - agentOptions: { model: 'deepseek-v4-flash' }, - }) - - const result = await ctx.tools.execute({ - callId: CallId('wf-e2e-call'), - name: 'workflow', - arguments: { - script: `export const meta = { name: 'e2e-tool', description: 'one real child via the tool' } -const answer = await agent('Reply with exactly one word: the capital of France.') -return { answer }`, - }, - agent: parentHandle.agent, - }) - - expect(result.isError).toBe(false) - const text = (result.content[0] as { text: string }).text - expect(text).toContain('workflow "e2e-tool" completed (1 agent)') - expect(text.toLowerCase()).toContain('paris') - await parentHandle.dispose() - }, 240_000) }) diff --git a/packages/workflow/workflow-vm/tsdown.config.ts b/packages/workflow/workflow-vm/tsdown.config.ts new file mode 100644 index 0000000000..3102a36c1c --- /dev/null +++ b/packages/workflow/workflow-vm/tsdown.config.ts @@ -0,0 +1,32 @@ +import { defineConfig } from 'tsdown' + +/** + * The engine ships two runtime entries: the engine service (index) and the + * worker-thread entry (worker) the engine spawns via `new Worker`. The + * entries are JS emitted by tsc under lib/types and are bundled as two + * single-entry passes so shared modules (realm, runtime, session) are inlined + * into each instead of split into a hash-named chunk (the worker entry must + * be a self-contained file the Worker constructor can load by path). + */ +export default defineConfig([ + { + entry: ['lib/types/index.js'], + outDir: 'lib', + format: ['esm'], + platform: 'node', + target: 'es2024', + fixedExtension: false, + dts: false, + clean: false, + }, + { + entry: ['lib/types/worker.js'], + outDir: 'lib', + format: ['esm'], + platform: 'node', + target: 'es2024', + fixedExtension: false, + dts: false, + clean: false, + }, +]) diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index f236c67bf2..e3e1892e35 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -1159,6 +1159,9 @@ importers: cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + tsx: + specifier: ^4.19.2 + version: 4.22.4 vendor/cordis: dependencies: diff --git a/scripts/check-workspace-constraints.ts b/scripts/check-workspace-constraints.ts index f579169ab0..2d12a66d8f 100644 --- a/scripts/check-workspace-constraints.ts +++ b/scripts/check-workspace-constraints.ts @@ -105,12 +105,25 @@ const dshBinPackageFiles = [ 'src', ] as const +const dshWorkerPackageFiles = [ + 'lib/index.js', + 'lib/worker.js', + 'lib/types/**/*.d.ts', + 'lib/types/**/*.d.ts.map', + 'src', +] as const + function sameStringList(actual: readonly string[] | undefined, expected: readonly string[]): boolean { return !!actual && actual.length === expected.length && actual.every((value, index) => value === expected[index]) } function expectedDshPackageFiles(manifest: PackageManifest): readonly string[] { - return manifest.bin ? dshBinPackageFiles : dshPackageFiles + if (manifest.bin) return dshBinPackageFiles + // A declared "./worker" subpath export sanctions the one extra runtime + // bundle a worker-thread entry needs (and NodeNext/publint then validate + // that subpath's targets like any other export). + if (manifest.exports?.['./worker']) return dshWorkerPackageFiles + return dshPackageFiles } function checkWorkspace({ dir, manifest }: WorkspaceManifest): string[] { diff --git a/scripts/run-gates.ts b/scripts/run-gates.ts index 6c844f842a..25e08cf8d2 100644 --- a/scripts/run-gates.ts +++ b/scripts/run-gates.ts @@ -310,6 +310,10 @@ function builtBinSmokeGate(): Gate { 'vitest.e2e.config.ts', 'packages/ui/stdio-agent/tests/built-bin.e2e.ts', 'packages/ui/acp-agent/tests/built-bin.e2e.ts', + // The workflow engine's built worker bundle: the only automated proof + // that lib/index.js resolves its sibling lib/worker.js under plain node + // (the e2e lane runs unbuilt, so this file self-skips there). + 'packages/workflow/workflow-vm/tests/built-worker.e2e.ts', ], { label: 'built-bin smoke', needs: ['build'], From d5c65e2b4c52271c9fb1a895b64d5457793bdd4c Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 18:50:29 +0800 Subject: [PATCH 139/232] docs: describe the workflow engine as worker-thread first The outer ring catches up with the engine swap (the package's own README/JSDoc rode the port commit): - Seam module doc and README name the worker-thread engine as THE implementation, with isolated-vm/separate-process sandboxing as the deferred hardening; the seam service doc states the holder-owned-runs contract (engine-fiber disposal deliberately leaves live runs to their holders). - Seam contract precision: agentsStarted documents the termination-path degradation to the host-observed count; the events section scopes the agent-start/agent-end pair to calls that STARTED a child run; WorkflowRun wording drops the vm-era abandonment language. - The dynamic-workflows RFC is rewritten in place to the shipped mechanism (implemented-RFC rule): why worker threads, the thread's concrete buys, the in-process node:vm first cut recorded under alternatives considered; the tool section describes the usage policy as the tool's own prompt section. - gen-doc-graphs: six workflow/* DYNAMIC_EVENT_DISPATCHERS entries (the catalog no longer claims nothing dispatches them) and the seam-note wording; core-data-structures gains its workflow.md index row; packages/README + AGENTS.md layout line + example cordis.yml comments say worker-thread; catalogs regenerated. --- AGENTS.md | 2 +- docs/capability-seams.md | 2 +- docs/config-catalog.md | 8 +++---- docs/cordis-catalog/services.md | 3 ++- docs/core-data-structures/core.md | 1 + docs/core-data-structures/workflow.md | 4 ++-- docs/event-producer-consumer.md | 12 +++++------ .../feature/2026-07-05-dynamic-workflows.md | 17 ++++++++------- examples/acp-agent/cordis.yml | 8 +++---- examples/coding-agent/cordis.yml | 8 +++---- packages/README.md | 2 +- packages/workflow/README.md | 4 ++-- packages/workflow/workflow/README.md | 6 +++--- packages/workflow/workflow/src/index.ts | 13 ++++++++---- packages/workflow/workflow/src/types.ts | 21 ++++++++++++------- scripts/gen-doc-graphs.ts | 10 ++++++++- 16 files changed, 72 insertions(+), 49 deletions(-) diff --git a/AGENTS.md b/AGENTS.md index eb34d404a0..5602b244ce 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -18,7 +18,7 @@ packages/ Harness packages at packages///, all named @deepseek-ai web/ web seam + search/fetch providers + model-facing web tools compact/ compaction seam + basic backend subagent/ subagent seam + spawn/fork/ACP backends + delegation tool - workflow/ workflow seam + node:vm script engine + the workflow tool + workflow/ workflow seam + worker-thread script engine + the workflow tool todo/ the todo_write tool hooks/ Claude Code / Codex hook bridges + shared wire-protocol library session-persistence/ persistence seam + JSONL/SQLite backends diff --git a/docs/capability-seams.md b/docs/capability-seams.md index caa9905e46..1a13bd2060 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -145,6 +145,6 @@ flowchart LR | `ctx.compact` | `seam` | [`compact`](../packages/compact/compact) | [`compact-basic`](../packages/compact/compact-basic) | [`compact-basic`](../packages/compact/compact-basic) | - | The basic backend currently consumes the pre-step event directly; a model-facing compact tool remains deferred. | | `ctx.subagents` | `seam` | [`subagent`](../packages/subagent/subagent) | [`subagent-spawn`](../packages/subagent/subagent-spawn), [`subagent-fork`](../packages/subagent/subagent-fork), [`subagent-acp`](../packages/subagent/subagent-acp), [`subagent-mock`](../packages/support/subagent-mock) | [`tool-subagent`](../packages/subagent/tool-subagent) | - | Providers implement transports; tool-subagent exposes one configured provider as a model-facing tool name. | | `ctx.web` | `seam` | [`web`](../packages/web/web) | [`web-search-exa`](../packages/web/web-search-exa), [`web-search-perplexity`](../packages/web/web-search-perplexity), [`web-search-deepseek`](../packages/web/web-search-deepseek), [`web-fetch-local`](../packages/web/web-fetch-local) | [`tool-web`](../packages/web/tool-web) | - | Search and fetch providers register into one ctx.web seam; tool-web owns the stable model-facing names. | -| `ctx.workflows` | `seam` | [`workflow`](../packages/workflow/workflow) | [`workflow-vm`](../packages/workflow/workflow-vm) | [`tool-workflow`](../packages/workflow/tool-workflow) | - | One engine per context (bash shape, no named-provider registry); the vm engine fans agent() calls out through ctx.subagents. | +| `ctx.workflows` | `seam` | [`workflow`](../packages/workflow/workflow) | [`workflow-vm`](../packages/workflow/workflow-vm) | [`tool-workflow`](../packages/workflow/tool-workflow) | - | One engine per context (bash shape, no named-provider registry); the worker-thread engine fans agent() calls out through ctx.subagents. | Maintenance mode: hybrid: services are discovered from Cordis declarations; interface/implementation/consumer roles are classified in `scripts/gen-doc-graphs.ts` with a completeness guard. diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 8ffaefdabd..300468dd70 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -815,18 +815,18 @@ export interface Config { maxTotalAgents?: number /** Items accepted by a single `parallel()`/`pipeline()` call (default 4096). */ maxItemsPerCall?: number - /** vm timeout for the script's initial synchronous slice AND the meta-literal evaluation (default 5000 ms). */ + /** vm timeout for the initial synchronous slice (inside the worker) AND the host-side meta evaluation (default 5000 ms). */ syncTimeoutMs?: number /** * How long after a cancellation an unsettled script may keep running before - * it is abandoned and `result` force-settles `cancelled` (default 5000 ms); - * also bounds `dispose()`. + * the run force-settles `cancelled` and its worker is TERMINATED (default + * 5000 ms); also bounds `dispose()`. */ disposeGraceMs?: number } ``` -Source: [`packages/workflow/workflow-vm/src/index.ts:58`](../packages/workflow/workflow-vm/src/index.ts) +Source: [`packages/workflow/workflow-vm/src/index.ts:69`](../packages/workflow/workflow-vm/src/index.ts) ## Loadable plugins with no config diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 027fa054c1..13c9f57733 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -238,12 +238,13 @@ Semantics every implementation must honor: - start throws synchronously for a request that cannot begin (an unparseable script, an invalid meta block). Once it returns a WorkflowRun, `result` NEVER rejects — every failure resolves with `stopReason: 'error'` (or `'cancelled'`) — and once the run is cancelled, `result` SETTLES within the implementation's bounded grace even if the script itself never settles (a consumer awaiting `result` must never be wedged past a cancellation). - The `workflow/*` events fire through emitWorkflowEvent (data snapshots, per-listener containment); `workflow/end` fires exactly once per started run, after `result` is settled or as it settles. - `dispose()` reaches quiescence within a bounded grace: it cancels, waits for the script to settle AND its started children to finish disposing, and abandons whatever is left rather than hanging its caller (the engine documents what abandonment leaves behind). +- Runs are HOLDER-OWNED: the engine hands control (`cancel`/`dispose`) to the `start()` caller and does not track its live runs — disposing the engine's own fiber mid-run deliberately leaves those runs to their holders' teardown, so an engine reload cannot yank a run out from under the consumer awaiting it. ```ts cordis-catalog abstract start(request: WorkflowStartRequest): WorkflowRun ``` -Source: [`packages/workflow/workflow/src/index.ts:202`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:207`](../../packages/workflow/workflow/src/index.ts) ## Inherited `ctx` members (cordis core + loader/hmr/timer) diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index 7d1110d7a8..2f1e5031e9 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -24,6 +24,7 @@ Everything else is documented on a **sub-page**, not here. The rule that draws t | [compaction.md](compaction.md) | the compaction seam: the `compact/*` session events, `CompactionResult`, the `CompactService` interface | | [subagent.md](subagent.md) | the subagent seam: the named-provider registry, `SubagentStartRequest`/`Result`/`Run`, the start-time-vs-runtime capability split | | [web.md](web.md) | the web access seam: `WebSearchRequest`/`Result`, `WebFetchRequest`/`Result`, `WebFetchBody`, provider/capability status, `WebError` | +| [workflow.md](workflow.md) | the workflow seam: `WorkflowStartRequest`, `WorkflowMeta`, `WorkflowRun`/`Result`, the `workflow/*` event payloads, `WorkflowError` fatality | > Type definitions on this page are pasted **verbatim** from source and drift-checked by `pnpm run verify-type-equiv` (see [development.md](../development.md#documenting-types-verbatim-ts-type-equiv)). Inline JSDoc is omitted for readability; follow the source link for the full contracts. diff --git a/docs/core-data-structures/workflow.md b/docs/core-data-structures/workflow.md index 8c7916a6c3..4d880ea948 100644 --- a/docs/core-data-structures/workflow.md +++ b/docs/core-data-structures/workflow.md @@ -2,7 +2,7 @@ The workflow seam — an agent running a model-written orchestration SCRIPT that fans out subagents. Like [subagent](subagent.md) it is **one optional capability**, not part of the agent-loop spine, so its vocabulary lives here rather than in [core.md](core.md). Unlike the subagent registry it takes the bash shape: ONE engine implementation per context provides `ctx.workflows`; there is no named-provider registry (a second engine is a plugin swap, not a co-resident). -Interface: [dsh-workflow](../../packages/workflow/workflow) (`ctx.workflows` + the vocabulary below). The implementation is [dsh-workflow-vm](../../packages/workflow/workflow-vm) (an in-process `node:vm` engine); the model-facing consumer is [dsh-tool-workflow](../../packages/workflow/tool-workflow). The proposal and rationale: [the dynamic-workflows RFC](../rfc/implemented/feature/2026-07-05-dynamic-workflows.md). +Interface: [dsh-workflow](../../packages/workflow/workflow) (`ctx.workflows` + the vocabulary below). The implementation is [dsh-workflow-vm](../../packages/workflow/workflow-vm) (a `node:worker_threads` engine — one worker per run, the script's vm context inside it); the model-facing consumer is [dsh-tool-workflow](../../packages/workflow/tool-workflow). The proposal and rationale: [the dynamic-workflows RFC](../rfc/implemented/feature/2026-07-05-dynamic-workflows.md). Source: [`packages/workflow/workflow/src/types.ts`](../../packages/workflow/workflow/src/types.ts) @@ -47,7 +47,7 @@ interface WorkflowResult { ## A live run: `WorkflowRun` -The handle the consumer holds while a script executes. The consumer awaits `result`, may `cancel` mid-flight, and MUST `dispose` on every path. `result` does NOT reject — a script failure resolves with `stopReason: 'error'` — and once the run is cancelled it SETTLES within the engine's bounded grace even if the script itself never settles (the engine abandons the script and reports `cancelled`), so a consumer awaiting `result` is never wedged past a cancellation. `dispose()` = cancel + that bounded settle + child quiescence (the engine documents what abandonment leaves behind); it never hangs on a stuck script. +The handle the consumer holds while a script executes. The consumer awaits `result`, may `cancel` mid-flight, and MUST `dispose` on every path. `result` does NOT reject — a script failure resolves with `stopReason: 'error'` — and once the run is cancelled it SETTLES within the engine's bounded grace even if the script itself never settles (the engine force-settles `cancelled`; the worker-thread engine then terminates the script's worker), so a consumer awaiting `result` is never wedged past a cancellation. `dispose()` = cancel + that bounded settle + child quiescence; it never hangs on a stuck script. ```ts type-equiv interface WorkflowRun { diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index ec1fc468e3..a8618022a5 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -34,11 +34,11 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `tools/change` | `emit` | [`packages/core/tools/src/index.ts:97`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | | `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:92`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:76`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `workflow/agent-end` | `emit` | [`packages/workflow/workflow/src/index.ts:93`](../packages/workflow/workflow/src/index.ts) | - | - | -| `workflow/agent-start` | `emit` | [`packages/workflow/workflow/src/index.ts:85`](../packages/workflow/workflow/src/index.ts) | - | - | -| `workflow/end` | `emit` | [`packages/workflow/workflow/src/index.ts:103`](../packages/workflow/workflow/src/index.ts) | - | - | -| `workflow/log` | `emit` | [`packages/workflow/workflow/src/index.ts:77`](../packages/workflow/workflow/src/index.ts) | - | - | -| `workflow/phase` | `emit` | [`packages/workflow/workflow/src/index.ts:70`](../packages/workflow/workflow/src/index.ts) | - | - | -| `workflow/start` | `emit` | [`packages/workflow/workflow/src/index.ts:62`](../packages/workflow/workflow/src/index.ts) | - | - | +| `workflow/agent-end` | `emit` | [`packages/workflow/workflow/src/index.ts:93`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | +| `workflow/agent-start` | `emit` | [`packages/workflow/workflow/src/index.ts:85`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | +| `workflow/end` | `emit` | [`packages/workflow/workflow/src/index.ts:103`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | +| `workflow/log` | `emit` | [`packages/workflow/workflow/src/index.ts:77`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | +| `workflow/phase` | `emit` | [`packages/workflow/workflow/src/index.ts:70`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | +| `workflow/start` | `emit` | [`packages/workflow/workflow/src/index.ts:62`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | Maintenance mode: hybrid generated: Cordis event declarations and most producer/listener edges are AST-scanned; dynamic dispatch sites are classified in `scripts/gen-doc-graphs.ts`. diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index f7749efa56..d0e436b17e 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -20,19 +20,19 @@ One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferre `ctx.workflows` is an abstract `WorkflowService` in the bash shape — one engine per context, no named-provider registry (engines are deployment swaps, not co-residents). `start(request)` throws synchronously for a script that cannot begin; a returned `WorkflowRun`'s `result` NEVER rejects (failures resolve as `stopReason: 'error' | 'cancelled'`). The `workflow/*` events are observe-only emits carrying DATA SNAPSHOTS (id + meta; `workflow/end` omits the result value), per-listener contained, mirroring `subagent/start`/`subagent/end` — control stays with the run's holder. Vocabulary details: [core-data-structures/workflow.md](../../../core-data-structures/workflow.md). -### The engine (dsh-workflow-vm): in-process node:vm +### The engine (dsh-workflow-vm): one worker thread per run -**Trust premise (governs every engine decision below)**: workflow scripts are MODEL-WRITTEN — the same trust level as the model's existing bash access — so the engine defends against BUGGY scripts, never hostile ones. In scope: `result` never rejects, no unhandled rejections from dropped hook promises, loud rejection of values JSON cannot carry, fatal-vs-null hook discipline, cancellation that always frees the caller. Out of scope, deliberately: adversarial values (throwing/spinning accessors, proxies with hostile traps, prototype forgery, `prepareStackTrace` hijack) AND Node-API escape from the context — the vm context shares object machinery with the host, so a script can reach the host `Function` constructor (`globalThis.constructor.constructor`) and from it `process` and every Node builtin; the absent globals are API surface, not containment. Host code MAY run script code while reading script values, and that is accepted, because a hostile script can already occupy the event loop forever with a synchronous spin past its first await; containing its error VALUES while conceding it the event loop would be cost without a threat model. Genuine hardening is an engine swap behind the seam (worker/isolated-vm gets value isolation by serialization for free), not incremental host-side defenses. +**Trust premise (governs every engine decision below)**: workflow scripts are MODEL-WRITTEN — the same trust level as the model's existing bash access — so the engine defends against BUGGY scripts, never hostile ones. In scope: `result` never rejects, no unhandled rejections from dropped hook promises, loud rejection of values JSON cannot carry, fatal-vs-null hook discipline, cancellation that always frees the caller. Out of scope, deliberately: adversarial values (throwing/spinning accessors, proxies with hostile traps, prototype forgery, `prepareStackTrace` hijack) AND Node-API escape from the script's context — the vm context shares object machinery with its surrounding realm, so a script can reach the `Function` constructor (`globalThis.constructor.constructor`) and from it `process` and every Node builtin; the absent globals are API surface, not containment, and a worker thread is NOT a security boundary (an escapee holds process-wide privileges — Node's permission model is per-process). Worker-side code MAY run script code while reading script values, and that is accepted: a synchronous spin costs the script its OWN thread (terminated at the post-cancel grace), never the host loop, so containing error VALUES would be cost without a threat model. Genuine sandboxing (isolated-vm, a separate process) remains an engine swap behind the seam, not incremental defenses here. -**Why node:vm and not isolated-vm/worker threads**: isolated-vm is in maintenance mode, needs `--no-node-snapshot` on EVERY consumer process (including the published bins) on Node ≥ 20, and falls back to node-gyp source builds; a worker-thread engine turns every hook into RPC and complicates the per-file coverage gate. Under the trust premise, in-process is enough. Accepted, documented limitations: `start()` blocks the caller for the script's initial synchronous slice (bounded by the vm timeout); that timeout covers ONLY the initial slice, so a synchronous spin past it (an await continuation, a thenable's `then` invoked by promise resolution — a returned thenable resolves per JavaScript semantics, which is what makes an un-awaited `return agent('x')` work — or script code the host runs while rendering a thrown value) cannot be killed in-process; `dispose()` cancels, waits a bounded grace for the script to settle and its children to finish disposing, then abandons. +**Why node:worker_threads**: one run = one worker thread, no pooling — a run is heavyweight (many children), so thread spin-up (~tens of ms) is noise. The script runs in a vm context INSIDE the worker, keeping the script-visible surface exactly the hook contract above (a bare worker realm would leak `setTimeout`/`fetch`/`process` as accidental API), and every `agent()` bridges to `ctx.subagents` by message-port RPC — children are I/O-bound LLM loops and stay on the host loop; the thread isolates the SCRIPT, the only part that can spin. What the thread buys: `start()` never blocks the host (an in-process engine runs the initial synchronous slice inline and cannot kill a spin past the first await — it could only ABANDON such a script, leaving the spin on the host loop), the post-cancel grace ends in a REAL `worker.terminate()`, and the value boundary is serialization by construction. isolated-vm was rejected for actual sandboxing: maintenance mode, `--no-node-snapshot` on EVERY consumer process (including published bins) on Node ≥ 20, node-gyp source-build fallback. Key mechanics (details in the package README): meta extraction and a body pre-parse stay HOST-side (preserving the seam's synchronous throws), a ready→go handshake keeps a run cancelled before start from ever executing the body, `cancel()` drives both child-cancel channels host-side (the shared request signal AND each child's explicit `cancel()` — a wedged worker cannot relay its own cancel RPCs), a host-side child registry backs worker-death reaping and `dispose()` quiescence, the wire protocol is enum-keyed payload maps private to the package, and on a termination path `agentsStarted` degrades to the host-observed count. Coverage puts the worker-side session on an in-process `MessageChannel` (real-Worker code is invisible to main-process v8) and proves the built `lib/worker.js` — a second tsdown entry, sanctioned in the workspace-constraints gate by the `"./worker"` subpath export — under plain node in the built-bin smoke gate. **Meta extraction**: a string/comment-aware brace scanner (template interpolation rejected) finds the literal; it is evaluated ALONE in an empty, timed vm context; the result must materialize to plain JSON data and pass shape validation (unknown fields rejected loud); the statement is blanked line-preservingly so stacks keep script line numbers. -**Value boundary**: values entering the host (meta, hook options, schemas, the return value) go through `materializeFromRealm` — a plain recursive walk that rejects loud everything JSON cannot carry (exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`), copying via `Object.defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation; getters are read ordinarily and their RESULT crosses (a throwing read fails loud). Values entering the realm (`args`, `agent()` results, hook promises and failures, combinator arrays) are handed over directly as host values — the script is trusted, so host prototypes are not a leak; `args` is host-`structuredClone`d once so a script cannot mutate the caller's object. Hook failures are host `WorkflowError`s: the combinators recognize fatality by host `instanceof` (unforgeable from the realm), and the script-visible consequence — in-script `instanceof Error` is `false` for hook errors; branch on `e.name`/`e.code` — is documented in the engine README. Realm functions (stages, thunks) are called, never materialized. Thrown script values are rendered by a total host-side renderer (stack → message → `String()`, fixed label if rendering throws), so `result` cannot reject. Caps (`maxConcurrentAgents` auto = `min(16, max(1, availableParallelism() - 2))`, `maxTotalAgents` 1000, `maxItemsPerCall` 4096) and timeouts are validated Config, not literals. +**Value boundary**: values leaving the script (meta, hook options, schemas, the return value) go through `materializeFromRealm` — a plain recursive walk that rejects loud everything JSON cannot carry (exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`), copying via `Object.defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation; getters are read ordinarily and their RESULT crosses (a throwing read fails loud) — which is also what makes every later postMessage hop total. Values entering the realm (`args`, `agent()` results, hook promises and failures, combinator arrays) are handed over directly as worker-realm values — the script is trusted, so outer prototypes are not a leak; `args` rides the `workerData` structured clone (the caller-isolation copy) and is cloned once more so a script scribbling on it cannot mutate the session's init object. Hook failures are `WorkflowError`s built OUTSIDE the script's context: the combinators recognize fatality by `instanceof` against the engine's own class (unforgeable from the script), and the script-visible consequence — in-script `instanceof Error` is `false` for hook errors; branch on `e.name`/`e.code` — is documented in the engine README. Realm functions (stages, thunks) are called, never materialized. Thrown script values are rendered by a total renderer (stack → message → `String()`, fixed label if rendering throws), so `result` cannot reject. Caps (`maxConcurrentAgents` auto = `min(16, max(1, availableParallelism() - 2))`, `maxTotalAgents` 1000, `maxItemsPerCall` 4096) and timeouts are validated Config, not literals. ### The consumer (dsh-tool-workflow) -A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, await, `try/finally` dispose, abort-bridge `exec.signal`, non-`completed` → `isError`. Render intent: a `generic` card titled by a textual `meta.name` sniff (presentation is a pure function of args). The tool description IS the model-facing authoring spec. Examples load it with guidance to use workflows only on explicit user request — the harness has no ultracode-style effort gate. +A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, await, `try/finally` dispose, abort-bridge `exec.signal`, non-`completed` → `isError`. Render intent: a `generic` card titled by a textual `meta.name` sniff (presentation is a pure function of args). The tool description IS the model-facing authoring spec. The usage policy ships with the tool as its own `tool:` prompt section (explicit-ask-only guidance — tool guidance lives in tool plugins, never in the deployment persona); the harness has no ultracode-style effort gate. ### The foundation: structured output on the subagent seam @@ -45,13 +45,14 @@ A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, awai - **Saved/bundled workflows** (a `.deepseek/workflows/` registry, slash-command surface) and **script persistence to a run directory** (the tool-call event already records the script durably). - **Nested `workflow()`**, **token `budget`**, and the `effort`/`isolation`/`agentType` agent options (each rejects loud with a message naming it deferred). - **An overall run wall-clock timeout** — cancellation always frees the caller (result settles within the grace), so a cap on total run time is a policy knob for the background redesign, not a correctness need here. -- **Engine hardening**: a worker-thread or isolated-vm engine behind the same seam (kills synchronous spins; adds memory limits). +- **Engine hardening beyond worker threads**: an isolated-vm or separate-process engine behind the same seam (actual sandboxing; memory limits). - **ACP progress UI** over the `workflow/*` events (a `/workflows`-style view); the events exist for it. - **ACP-backend structured output** and **`toolFilter`** (both still capability-gated `false`). ## Alternatives considered -- **Hostile-value containment in the host** (trap-free proxy rejection, accessor-never-invoked descriptor walks, realm-side pre-rendering of thrown values, realm-built promises/arrays/error clones with structural fatal recognition): an earlier revision built all of it, and review showed the cost was real while the threat model was not — every one of those defenses guards against an author the premise already trusts, who retains an accepted unkillable event-loop spin regardless. Removed in favor of the plain boundary above; the hardened engine deletes such machinery anyway (serialization by construction). +- **Hostile-value containment in the host** (trap-free proxy rejection, accessor-never-invoked descriptor walks, realm-side pre-rendering of thrown values, realm-built promises/arrays/error clones with structural fatal recognition): an earlier revision built all of it, and review showed the cost was real while the threat model was not — every one of those defenses guards against an author the premise already trusts. Removed in favor of the plain boundary above; the thread boundary makes such machinery redundant anyway (serialization by construction). +- **In-process `node:vm` execution** (the first cut of this RFC shipped it): mechanically simplest — no RPC, no thread — but `start()` blocks the caller for the script's initial synchronous slice, a synchronous spin past the first await cannot be killed in-process (the vm `timeout` covers only that first slice), and `dispose()` could only ABANDON an unsettling script, leaving the spin on the host loop. Superseded by the worker-thread engine, which keeps the same vm-context script surface while unblocking the host and making termination real. - **Background execution as the default** (CC's shape): deferred; foreground-synchronous matches `dsh-tool-subagent`'s cut, and background semantics should be designed ONCE across bash/subagent/workflow rather than per-tool. - **Workflow-layer JSON parsing for `agent({schema})`**: duplicating a seam concern at one consumer while the seam's capability flag stayed dishonestly `false`. - **Meta as tool parameters instead of `export const meta`**: zero parsing, but scripts stop being self-contained artifacts and CC-authored scripts stop being drop-in. @@ -62,4 +63,4 @@ A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, awai ## Consequences -The harness gains CC-compatible script orchestration: fan-out plans live in a rerunnable artifact instead of the parent context, and the structured-output half of the subagent seam is now real (the vocabulary stopped lying about `outputSchema`). What it cost, all bounded by the trust premise: the in-process engine blocks its caller for a script's initial synchronous slice, cannot kill a synchronous spin past that slice, and does not isolate host values from the script — acceptable because scripts share the model's trust level, and each limitation names its exit (the engine swap behind the seam). The fatal-vs-null strictness divergence from CC means a CC-authored script that RELIES on option typos dissolving to `null` behaves differently here — judged worth it to keep the repo's no-accepted-then-ignored rule. Consumers must hold the run handle for control (`cancel`/`dispose`); observers get data snapshots only, so no listener can extend a run's lifetime or corrupt another's view. +The harness gains CC-compatible script orchestration: fan-out plans live in a rerunnable artifact instead of the parent context, and the structured-output half of the subagent seam is now real (the vocabulary stopped lying about `outputSchema`). What it cost, all bounded by the trust premise: a worker thread per run (~tens-of-ms spin-up), every hook crossing a message port as RPC, and a termination-path `agentsStarted` that degrades to the host-observed count; in exchange `start()` never blocks the host, a post-cancel grace ends in a real `worker.terminate()`, and the value boundary is serialization by construction. A worker thread is still NOT a security boundary — scripts share the model's trust level, and actual sandboxing names its exit (the isolated-vm/separate-process engine swap behind the seam). The fatal-vs-null strictness divergence from CC means a CC-authored script that RELIES on option typos dissolving to `null` behaves differently here — judged worth it to keep the repo's no-accepted-then-ignored rule. Consumers must hold the run handle for control (`cancel`/`dispose`); observers get data snapshots only, so no listener can extend a run's lifetime or corrupt another's view. diff --git a/examples/acp-agent/cordis.yml b/examples/acp-agent/cordis.yml index eeb78a7962..f2015bc7c2 100644 --- a/examples/acp-agent/cordis.yml +++ b/examples/acp-agent/cordis.yml @@ -82,10 +82,10 @@ toolName: subagent_fork -# Dynamic workflows: the node:vm engine (ctx.workflows) over the spawn subagent -# backend above, plus the model-facing `workflow` tool. The model writes a -# JavaScript orchestration script (meta + body); the engine runs it in-process -# and fans agent() calls out as spawn children. +# Dynamic workflows: the worker-thread engine (ctx.workflows) over the spawn +# subagent backend above, plus the model-facing `workflow` tool. The model +# writes a JavaScript orchestration script (meta + body); the engine runs it +# in its own worker thread and fans agent() calls out as spawn children. - id: workflow-vm name: '@deepseek-ai/dsh-workflow-vm' config: diff --git a/examples/coding-agent/cordis.yml b/examples/coding-agent/cordis.yml index 28643e0d73..ee55bced0b 100644 --- a/examples/coding-agent/cordis.yml +++ b/examples/coding-agent/cordis.yml @@ -103,10 +103,10 @@ toolName: subagent_fork -# Dynamic workflows: the node:vm engine (ctx.workflows) over the spawn subagent -# backend above, plus the model-facing `workflow` tool. The model writes a -# JavaScript orchestration script (meta + body); the engine runs it in-process -# and fans agent() calls out as spawn children. +# Dynamic workflows: the worker-thread engine (ctx.workflows) over the spawn +# subagent backend above, plus the model-facing `workflow` tool. The model +# writes a JavaScript orchestration script (meta + body); the engine runs it +# in its own worker thread and fans agent() calls out as spawn children. - id: workflow-vm name: '@deepseek-ai/dsh-workflow-vm' config: diff --git a/packages/README.md b/packages/README.md index 3c38eda671..43b446eeb5 100644 --- a/packages/README.md +++ b/packages/README.md @@ -14,7 +14,7 @@ Packages are grouped by modular role at `packages///`. The group dir | [`fs/`](fs/README.md) | Filesystem capability family: the abstract seam, a local impl, and the model-facing file tools | Product — stable surface | | [`compact/`](compact/README.md) | Compaction capability family: the abstract seam + a basic backend (tool deferred) | Product — stable surface | | [`subagent/`](subagent/README.md) | Subagent capability family: the provider-registry seam and the model-facing delegation tool | Product — stable surface | -| [`workflow/`](workflow/README.md) | Workflow capability family: the script-engine seam, the node:vm engine, and the model-facing `workflow` tool | Product — stable surface | +| [`workflow/`](workflow/README.md) | Workflow capability family: the script-engine seam, the worker-thread engine, and the model-facing `workflow` tool | Product — stable surface | | [`web/`](web/README.md) | Web capability family: the abstract seam, search/fetch provider impls, and the model-facing web tools | Product — stable surface | | [`todo/`](todo/README.md) | Todo/planning family: the model-facing `todo_write` tool (whole-list task tracking on the session log) | Product — stable surface | | [`hooks/`](hooks/README.md) | Hook bridges + the shared Claude Code / Codex wire-protocol library | Product — stable surface | diff --git a/packages/workflow/README.md b/packages/workflow/README.md index f28a325ea8..a0750d9fdf 100644 --- a/packages/workflow/README.md +++ b/packages/workflow/README.md @@ -5,9 +5,9 @@ The workflow seam: a model-written JavaScript orchestration script that fans out | Package | Role | ctx key | |---|---|---| | `workflow/` | Abstract workflow seam: service base class + run vocabulary + `workflow/*` events | `ctx.workflows` | -| `workflow-vm/` | In-process `node:vm` engine: parses the script, injects the hooks, drives `ctx.subagents` | (provides `ctx.workflows`) | +| `workflow-vm/` | `node:worker_threads` engine: one worker per run; the script's vm context lives inside the worker, `agent()` bridges to `ctx.subagents` over the message port | (provides `ctx.workflows`) | | `tool-workflow/` | Model-facing `workflow` tool over `ctx.workflows` | (registers on `ctx.tools`) | -The interface lives at `workflow/workflow/`. The engine's `agent()` hook rides the [subagent seam](../subagent/README.md) (any registered provider; the shipped examples use `spawn`), and `agent({ schema })` rides the structured-output support the in-process backends implement. The seam split exists for engine hardening: `node:vm` is in-process and cannot kill a pathological synchronous spin — a worker-thread or isolated-vm engine swaps in behind the same interface if that ever matters. +The interface lives at `workflow/workflow/`. The engine's `agent()` hook rides the [subagent seam](../subagent/README.md) (any registered provider; the shipped examples use `spawn`), and `agent({ schema })` rides the structured-output support the in-process backends implement. The worker thread isolates the SCRIPT — the host never blocks on it, and a cancelled run's post-grace termination is real — but it is NOT a security boundary; an isolated-vm/separate-process engine (actual sandboxing) swaps in behind the same interface if that ever matters. The proposal, decisions, and deferred work: [docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md](../../docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md). diff --git a/packages/workflow/workflow/README.md b/packages/workflow/workflow/README.md index 076f5443ac..96add5017e 100644 --- a/packages/workflow/workflow/README.md +++ b/packages/workflow/workflow/README.md @@ -1,10 +1,10 @@ # @deepseek-ai/dsh-workflow -The **workflow seam** (`ctx.workflows`): an abstract service defining WHAT a workflow engine does — execute a model-written orchestration script that fans out subagents — without saying HOW. The bash-shaped third of the [workflow family](../README.md): implementations subclass `WorkflowService` and register as the `workflows` service (one per context); [`dsh-workflow-vm`](../workflow-vm/README.md) is the first, and [`dsh-tool-workflow`](../tool-workflow/README.md) is the model-facing consumer. +The **workflow seam** (`ctx.workflows`): an abstract service defining WHAT a workflow engine does — execute a model-written orchestration script that fans out subagents — without saying HOW. The bash-shaped third of the [workflow family](../README.md): implementations subclass `WorkflowService` and register as the `workflows` service (one per context); [`dsh-workflow-vm`](../workflow-vm/README.md) (one worker thread per run) is the implementation, and [`dsh-tool-workflow`](../tool-workflow/README.md) is the model-facing consumer. ## Service: `WorkflowService` (abstract) -`start(request: WorkflowStartRequest): WorkflowRun` — parse and execute a script. Throws synchronously (`SCRIPT_PARSE`/`META_INVALID`) for a script that cannot begin; once a run is returned, its `result` NEVER rejects — every failure resolves with `stopReason: 'error'` (or `'cancelled'`) — and once the run is cancelled, `result` settles within the implementation's bounded grace even if the script itself never settles (a consumer awaiting `result` must never be wedged past a cancellation). `dispose()` must reach quiescence within a bounded grace (cancel → wait for the script to settle and its children to finish disposing → abandon), never hanging its caller. +`start(request: WorkflowStartRequest): WorkflowRun` — parse and execute a script. Throws synchronously (`SCRIPT_PARSE`/`META_INVALID`) for a script that cannot begin; once a run is returned, its `result` NEVER rejects — every failure resolves with `stopReason: 'error'` (or `'cancelled'`) — and once the run is cancelled, `result` settles within the implementation's bounded grace even if the script itself never settles (a consumer awaiting `result` must never be wedged past a cancellation). `dispose()` must reach quiescence within a bounded grace (cancel → wait for the script to settle and its children to finish disposing → abandon), never hanging its caller. Runs are HOLDER-owned: the engine does not track its live runs, so disposing the engine's fiber mid-run leaves each run to its holder's teardown. The protected `emitWorkflowEvent` helper dispatches the `workflow/*` events with PER-LISTENER containment and PER-LISTENER payload snapshots (a throwing subscriber is logged, never propagated, and cannot starve later listeners; each subscriber gets its own clone of the payload, so mutating it corrupts neither the engine nor other listeners) — the same containment guarantee as the subagent seam's lifecycle emits. @@ -22,7 +22,7 @@ All observe-only emits carrying DATA SNAPSHOTS (`WorkflowRunInfo` = id + meta) - `workflow/start`(info) / `workflow/end`(info, resultInfo) — run lifecycle; `resultInfo` deliberately omits the value. - `workflow/phase`(info, title) / `workflow/log`(info, message) — script narration. -- `workflow/agent-start`(info, agent) / `workflow/agent-end`(info, agent + outcome) — one pair per `agent()` call, correlated by `seq`. +- `workflow/agent-start`(info, agent) / `workflow/agent-end`(info, agent + outcome) — one pair per `agent()` call that STARTED a child run (a call rejected at validation or caps, refused at start, or cancelled while queued for a slot emits no pair), correlated by `seq`. ## Non-goals (this cut) diff --git a/packages/workflow/workflow/src/index.ts b/packages/workflow/workflow/src/index.ts index 0e5a03c438..2a57d143b6 100644 --- a/packages/workflow/workflow/src/index.ts +++ b/packages/workflow/workflow/src/index.ts @@ -4,10 +4,10 @@ * that fans out subagents — without saying HOW. Implementations subclass * {@link WorkflowService} and register as the `workflows` service (one * implementation per context, cordis' standard duplicate-service behavior); - * `@deepseek-ai/dsh-workflow-vm` (an in-process `node:vm` engine) is the - * first. Future engines (a worker-thread or isolated-vm sandbox) swap in - * without touching the model-facing tool that consumes them - * (`@deepseek-ai/dsh-tool-workflow`). + * the implementation is `@deepseek-ai/dsh-workflow-vm`, which runs each + * script in its own worker thread. Hardened engines (an isolated-vm or + * separate-process sandbox) swap in without touching the model-facing tool + * that consumes them (`@deepseek-ai/dsh-tool-workflow`). * * The `workflow/*` lifecycle events are OBSERVE-ONLY data snapshots: they * carry {@link WorkflowRunInfo} (id + meta), never the live {@link WorkflowRun} @@ -198,6 +198,11 @@ export function isFatalWorkflowError(error: unknown): boolean { * for the script to settle AND its started children to finish disposing, * and abandons whatever is left rather than hanging its caller (the engine * documents what abandonment leaves behind). + * - Runs are HOLDER-OWNED: the engine hands control (`cancel`/`dispose`) to + * the `start()` caller and does not track its live runs — disposing the + * engine's own fiber mid-run deliberately leaves those runs to their + * holders' teardown, so an engine reload cannot yank a run out from under + * the consumer awaiting it. */ export abstract class WorkflowService extends Service { constructor(ctx: Context) { diff --git a/packages/workflow/workflow/src/types.ts b/packages/workflow/workflow/src/types.ts index 767fb8257b..8552e32454 100644 --- a/packages/workflow/workflow/src/types.ts +++ b/packages/workflow/workflow/src/types.ts @@ -89,7 +89,13 @@ export interface WorkflowResult { stopReason: WorkflowStopReason /** The failure message (present iff `stopReason` is not `completed`). */ error?: string - /** How many `agent()` calls the run accepted (whole lifetime, including calls still queued for a slot when the run was cancelled). */ + /** + * How many `agent()` calls the run accepted over its whole lifetime. On a + * graceful settlement this is the script-side count (calls still queued for + * a concurrency slot included); on a termination path (grace force-settle, + * worker death) it degrades to the host-observed count — calls queued + * inside a terminated script are unknowable then. + */ agentsStarted: number } @@ -98,18 +104,19 @@ export interface WorkflowResult { * `result`, may `cancel` mid-flight, and MUST `dispose` on every path. * `result` does NOT reject — a script failure resolves with `stopReason: * 'error'` — and once the run is cancelled it SETTLES within the engine's - * bounded grace even if the script itself never settles (the engine abandons - * the script and reports `cancelled`), so a consumer awaiting `result` is - * never wedged past a cancellation. `dispose()` = cancel + that bounded - * settle + child quiescence; it never hangs on a stuck script and is safe to - * call on every path (idempotent). + * bounded grace even if the script itself never settles (the engine + * force-settles `cancelled`; what becomes of the script is engine-documented + * — the worker-thread engine terminates its worker), so a consumer awaiting + * `result` is never wedged past a cancellation. `dispose()` = cancel + that + * bounded settle + child quiescence; it never hangs on a stuck script and is + * safe to call on every path (idempotent). */ export interface WorkflowRun { readonly id: WorkflowRunId /** The validated meta block (available before the body runs). */ readonly meta: WorkflowMeta readonly result: Promise - /** Cancel the run: children abort, pending hooks reject, the script dies at its next await (or is abandoned at the grace). */ + /** Cancel the run: children abort, pending hooks reject, the script dies at its next await (or is force-settled at the grace). */ cancel(reason?: string): void /** Cancel + bounded-grace settle; safe to call on every path (idempotent). */ dispose(): Promise diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 1fabb98707..0abe1a34cf 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -193,7 +193,7 @@ const SERVICE_ROLES: ServiceRole[] = [ mode: 'seam', implementations: ['workflow-vm'], consumers: ['tool-workflow'], - note: 'One engine per context (bash shape, no named-provider registry); the vm engine fans agent() calls out through ctx.subagents.', + note: 'One engine per context (bash shape, no named-provider registry); the worker-thread engine fans agent() calls out through ctx.subagents.', }, ] @@ -203,6 +203,14 @@ const DYNAMIC_EVENT_DISPATCHERS: Array<{ event: string; pkg: string; method: str // listeners or strand an already-started child run. { event: 'subagent/start', pkg: 'subagent', method: 'events.dispatch' }, { event: 'subagent/end', pkg: 'subagent', method: 'events.dispatch' }, + // The workflow/* lifecycle events dispatch the same way, for the same + // per-listener-containment reason (WorkflowService.emitWorkflowEvent). + { event: 'workflow/start', pkg: 'workflow', method: 'events.dispatch' }, + { event: 'workflow/phase', pkg: 'workflow', method: 'events.dispatch' }, + { event: 'workflow/log', pkg: 'workflow', method: 'events.dispatch' }, + { event: 'workflow/agent-start', pkg: 'workflow', method: 'events.dispatch' }, + { event: 'workflow/agent-end', pkg: 'workflow', method: 'events.dispatch' }, + { event: 'workflow/end', pkg: 'workflow', method: 'events.dispatch' }, ] function generatedHeader(title: string): string[] { From 0d11a3afc708a7fcfd867bfc1022798b0a90e44a Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 19:06:55 +0800 Subject: [PATCH 140/232] workflow: rename dsh-workflow-vm to dsh-workflow-workerthread Pure mechanical rename now that the package's internals are the worker-thread engine: directory, package name, spec/e2e filenames, module tags and logger prefixes, tsconfig/knip/run-gates/AGENTS.md references, example cordis.yml plugin ids, doc links; catalogs regenerated and the lockfile refreshed. --- AGENTS.md | 4 ++-- docs/capability-seams.md | 6 +++--- docs/config-catalog.md | 4 ++-- docs/core-data-structures/workflow.md | 2 +- docs/module-graph.md | 16 ++++++++-------- .../feature/2026-07-05-dynamic-workflows.md | 2 +- examples/acp-agent/composition.md | 6 +++--- examples/acp-agent/cordis.yml | 4 ++-- examples/acp-agent/tests/acp.snapshot.ts | 2 +- examples/coding-agent/composition.md | 6 +++--- examples/coding-agent/cordis.yml | 4 ++-- knip.json | 2 +- packages/workflow/README.md | 2 +- packages/workflow/tool-workflow/package.json | 2 +- .../tool-workflow/tests/tool-workflow.spec.ts | 2 +- .../README.md | 2 +- .../package.json | 2 +- .../src/host.ts | 8 ++++---- .../src/index.ts | 2 +- .../src/meta.ts | 2 +- .../src/protocol.ts | 2 +- .../src/realm.ts | 2 +- .../src/runtime.ts | 2 +- .../src/session.ts | 2 +- .../src/types.ts | 2 +- .../src/worker.ts | 2 +- .../tests/built-worker.e2e.ts | 2 +- .../tests/integration.spec.ts | 2 +- .../tests/meta.spec.ts | 0 .../tests/realm.spec.ts | 0 .../tests/session.spec.ts | 0 .../tests/workflow-workerthread.e2e.ts} | 0 .../tests/workflow-workerthread.spec.ts} | 2 +- .../tsconfig.json | 0 .../tsdown.config.ts | 0 packages/workflow/workflow/README.md | 2 +- packages/workflow/workflow/src/index.ts | 2 +- pnpm-lock.yaml | 6 +++--- scripts/gen-doc-graphs.ts | 2 +- scripts/gen-tool-catalog.ts | 2 +- scripts/run-gates.ts | 2 +- tsconfig.build.json | 2 +- tsconfig.json | 2 +- 43 files changed, 59 insertions(+), 59 deletions(-) rename packages/workflow/{workflow-vm => workflow-workerthread}/README.md (99%) rename packages/workflow/{workflow-vm => workflow-workerthread}/package.json (97%) rename packages/workflow/{workflow-vm => workflow-workerthread}/src/host.ts (97%) rename packages/workflow/{workflow-vm => workflow-workerthread}/src/index.ts (99%) rename packages/workflow/{workflow-vm => workflow-workerthread}/src/meta.ts (99%) rename packages/workflow/{workflow-vm => workflow-workerthread}/src/protocol.ts (98%) rename packages/workflow/{workflow-vm => workflow-workerthread}/src/realm.ts (99%) rename packages/workflow/{workflow-vm => workflow-workerthread}/src/runtime.ts (99%) rename packages/workflow/{workflow-vm => workflow-workerthread}/src/session.ts (99%) rename packages/workflow/{workflow-vm => workflow-workerthread}/src/types.ts (98%) rename packages/workflow/{workflow-vm => workflow-workerthread}/src/worker.ts (93%) rename packages/workflow/{workflow-vm => workflow-workerthread}/tests/built-worker.e2e.ts (97%) rename packages/workflow/{workflow-vm => workflow-workerthread}/tests/integration.spec.ts (98%) rename packages/workflow/{workflow-vm => workflow-workerthread}/tests/meta.spec.ts (100%) rename packages/workflow/{workflow-vm => workflow-workerthread}/tests/realm.spec.ts (100%) rename packages/workflow/{workflow-vm => workflow-workerthread}/tests/session.spec.ts (100%) rename packages/workflow/{workflow-vm/tests/workflow.e2e.ts => workflow-workerthread/tests/workflow-workerthread.e2e.ts} (100%) rename packages/workflow/{workflow-vm/tests/workflow-vm.spec.ts => workflow-workerthread/tests/workflow-workerthread.spec.ts} (99%) rename packages/workflow/{workflow-vm => workflow-workerthread}/tsconfig.json (100%) rename packages/workflow/{workflow-vm => workflow-workerthread}/tsdown.config.ts (100%) diff --git a/AGENTS.md b/AGENTS.md index 5602b244ce..d0a7983b26 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -18,7 +18,7 @@ packages/ Harness packages at packages///, all named @deepseek-ai web/ web seam + search/fetch providers + model-facing web tools compact/ compaction seam + basic backend subagent/ subagent seam + spawn/fork/ACP backends + delegation tool - workflow/ workflow seam + worker-thread script engine + the workflow tool + workflow/ workflow seam + worker-thread engine + the workflow tool todo/ the todo_write tool hooks/ Claude Code / Codex hook bridges + shared wire-protocol library session-persistence/ persistence seam + JSONL/SQLite backends @@ -70,7 +70,7 @@ printf '%s\n' "$out" | grep -q '\[tool call\] echo({"text":"ci smoke"})' printf '%s\n' "$out" | grep -q '\[tool result\] ECHO: CI SMOKE' ls .sessions/_no-cwd/main-session-*.jsonl >/dev/null rm -rf .sessions -pnpm exec vitest run --config vitest.e2e.config.ts packages/ui/stdio-agent/tests/built-bin.e2e.ts packages/ui/acp-agent/tests/built-bin.e2e.ts packages/workflow/workflow-vm/tests/built-worker.e2e.ts +pnpm exec vitest run --config vitest.e2e.config.ts packages/ui/stdio-agent/tests/built-bin.e2e.ts packages/ui/acp-agent/tests/built-bin.e2e.ts packages/workflow/workflow-workerthread/tests/built-worker.e2e.ts ``` `test:coverage`, not `test`, is the gating run ([why](docs/testing.md)); a sign-off counts only for commands actually run. diff --git a/docs/capability-seams.md b/docs/capability-seams.md index 1a13bd2060..8f5f316916 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -62,7 +62,7 @@ flowchart LR pkg_web_fetch_local["web-fetch-local"] pkg_workflow["workflow"] svc_workflows["ctx.workflows
Workflow script engine"] - pkg_workflow_vm["workflow-vm"] + pkg_workflow_workerthread["workflow-workerthread"] pkg_tool_workflow["tool-workflow"] pkg_agent --> svc_agents pkg_agent_loop --> svc_agentLoop @@ -93,7 +93,7 @@ flowchart LR pkg_web_search_exa --> svc_web pkg_web_search_perplexity --> svc_web pkg_workflow --> svc_workflows - pkg_workflow_vm --> svc_workflows + pkg_workflow_workerthread --> svc_workflows svc_agentLoop --> pkg_agent_core svc_agents --> pkg_acp svc_agents --> pkg_agent_loop @@ -145,6 +145,6 @@ flowchart LR | `ctx.compact` | `seam` | [`compact`](../packages/compact/compact) | [`compact-basic`](../packages/compact/compact-basic) | [`compact-basic`](../packages/compact/compact-basic) | - | The basic backend currently consumes the pre-step event directly; a model-facing compact tool remains deferred. | | `ctx.subagents` | `seam` | [`subagent`](../packages/subagent/subagent) | [`subagent-spawn`](../packages/subagent/subagent-spawn), [`subagent-fork`](../packages/subagent/subagent-fork), [`subagent-acp`](../packages/subagent/subagent-acp), [`subagent-mock`](../packages/support/subagent-mock) | [`tool-subagent`](../packages/subagent/tool-subagent) | - | Providers implement transports; tool-subagent exposes one configured provider as a model-facing tool name. | | `ctx.web` | `seam` | [`web`](../packages/web/web) | [`web-search-exa`](../packages/web/web-search-exa), [`web-search-perplexity`](../packages/web/web-search-perplexity), [`web-search-deepseek`](../packages/web/web-search-deepseek), [`web-fetch-local`](../packages/web/web-fetch-local) | [`tool-web`](../packages/web/tool-web) | - | Search and fetch providers register into one ctx.web seam; tool-web owns the stable model-facing names. | -| `ctx.workflows` | `seam` | [`workflow`](../packages/workflow/workflow) | [`workflow-vm`](../packages/workflow/workflow-vm) | [`tool-workflow`](../packages/workflow/tool-workflow) | - | One engine per context (bash shape, no named-provider registry); the worker-thread engine fans agent() calls out through ctx.subagents. | +| `ctx.workflows` | `seam` | [`workflow`](../packages/workflow/workflow) | [`workflow-workerthread`](../packages/workflow/workflow-workerthread) | [`tool-workflow`](../packages/workflow/tool-workflow) | - | One engine per context (bash shape, no named-provider registry); the worker-thread engine fans agent() calls out through ctx.subagents. | Maintenance mode: hybrid: services are discovered from Cordis declarations; interface/implementation/consumer roles are classified in `scripts/gen-doc-graphs.ts` with a completeness guard. diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 300468dd70..1649ad4e26 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -800,7 +800,7 @@ export interface Config { Source: [`packages/web/web-search-perplexity/src/index.ts:33`](../packages/web/web-search-perplexity/src/index.ts) -## `@deepseek-ai/dsh-workflow-vm` +## `@deepseek-ai/dsh-workflow-workerthread` Requires: `subagents` @@ -826,7 +826,7 @@ export interface Config { } ``` -Source: [`packages/workflow/workflow-vm/src/index.ts:69`](../packages/workflow/workflow-vm/src/index.ts) +Source: [`packages/workflow/workflow-workerthread/src/index.ts:69`](../packages/workflow/workflow-workerthread/src/index.ts) ## Loadable plugins with no config diff --git a/docs/core-data-structures/workflow.md b/docs/core-data-structures/workflow.md index 4d880ea948..36ad3be330 100644 --- a/docs/core-data-structures/workflow.md +++ b/docs/core-data-structures/workflow.md @@ -2,7 +2,7 @@ The workflow seam — an agent running a model-written orchestration SCRIPT that fans out subagents. Like [subagent](subagent.md) it is **one optional capability**, not part of the agent-loop spine, so its vocabulary lives here rather than in [core.md](core.md). Unlike the subagent registry it takes the bash shape: ONE engine implementation per context provides `ctx.workflows`; there is no named-provider registry (a second engine is a plugin swap, not a co-resident). -Interface: [dsh-workflow](../../packages/workflow/workflow) (`ctx.workflows` + the vocabulary below). The implementation is [dsh-workflow-vm](../../packages/workflow/workflow-vm) (a `node:worker_threads` engine — one worker per run, the script's vm context inside it); the model-facing consumer is [dsh-tool-workflow](../../packages/workflow/tool-workflow). The proposal and rationale: [the dynamic-workflows RFC](../rfc/implemented/feature/2026-07-05-dynamic-workflows.md). +Interface: [dsh-workflow](../../packages/workflow/workflow) (`ctx.workflows` + the vocabulary below). The implementation is [dsh-workflow-workerthread](../../packages/workflow/workflow-workerthread) (a `node:worker_threads` engine — one worker per run, the script's vm context inside it); the model-facing consumer is [dsh-tool-workflow](../../packages/workflow/tool-workflow). The proposal and rationale: [the dynamic-workflows RFC](../rfc/implemented/feature/2026-07-05-dynamic-workflows.md). Source: [`packages/workflow/workflow/src/types.ts`](../../packages/workflow/workflow/src/types.ts) diff --git a/docs/module-graph.md b/docs/module-graph.md index ae1d8ef63f..f084e7fe40 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -81,7 +81,7 @@ flowchart TD subgraph group_workflow["packages/workflow"] pkg_tool_workflow["tool-workflow"] pkg_workflow["workflow"] - pkg_workflow_vm["workflow-vm"] + pkg_workflow_workerthread["workflow-workerthread"] end pkg_llm --> pkg_brand pkg_bash --> pkg_brand @@ -199,12 +199,12 @@ flowchart TD pkg_subagent_mock --> pkg_agent pkg_subagent_mock --> pkg_llm pkg_subagent_mock --> pkg_subagent - pkg_workflow_vm --> pkg_agent - pkg_workflow_vm --> pkg_brand - pkg_workflow_vm --> pkg_llm - pkg_workflow_vm --> pkg_subagent - pkg_workflow_vm --> pkg_tools - pkg_workflow_vm --> pkg_workflow + pkg_workflow_workerthread --> pkg_agent + pkg_workflow_workerthread --> pkg_brand + pkg_workflow_workerthread --> pkg_llm + pkg_workflow_workerthread --> pkg_subagent + pkg_workflow_workerthread --> pkg_tools + pkg_workflow_workerthread --> pkg_workflow pkg_subagent_fork --> pkg_agent pkg_subagent_fork --> pkg_session pkg_subagent_fork --> pkg_subagent @@ -268,7 +268,7 @@ flowchart TD | [`tool-subagent`](../packages/subagent/tool-subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent), [`tools`](../packages/core/tools) | | [`hooks-claude`](../packages/hooks/hooks-claude) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`tools`](../packages/core/tools) | | [`subagent-mock`](../packages/support/subagent-mock) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent) | -| [`workflow-vm`](../packages/workflow/workflow-vm) | `workflow` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent), [`tools`](../packages/core/tools), [`workflow`](../packages/workflow/workflow) | +| [`workflow-workerthread`](../packages/workflow/workflow-workerthread) | `workflow` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent), [`tools`](../packages/core/tools), [`workflow`](../packages/workflow/workflow) | | [`subagent-fork`](../packages/subagent/subagent-fork) | `subagent` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | [`subagent-spawn`](../packages/subagent/subagent-spawn) | `subagent` | [`subagent`](../packages/subagent/subagent), [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | [`acp-agent`](../packages/ui/acp-agent) | `ui` | [`acp`](../packages/ui/acp), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index d0e436b17e..029e090cb1 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -20,7 +20,7 @@ One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferre `ctx.workflows` is an abstract `WorkflowService` in the bash shape — one engine per context, no named-provider registry (engines are deployment swaps, not co-residents). `start(request)` throws synchronously for a script that cannot begin; a returned `WorkflowRun`'s `result` NEVER rejects (failures resolve as `stopReason: 'error' | 'cancelled'`). The `workflow/*` events are observe-only emits carrying DATA SNAPSHOTS (id + meta; `workflow/end` omits the result value), per-listener contained, mirroring `subagent/start`/`subagent/end` — control stays with the run's holder. Vocabulary details: [core-data-structures/workflow.md](../../../core-data-structures/workflow.md). -### The engine (dsh-workflow-vm): one worker thread per run +### The engine (dsh-workflow-workerthread): one worker thread per run **Trust premise (governs every engine decision below)**: workflow scripts are MODEL-WRITTEN — the same trust level as the model's existing bash access — so the engine defends against BUGGY scripts, never hostile ones. In scope: `result` never rejects, no unhandled rejections from dropped hook promises, loud rejection of values JSON cannot carry, fatal-vs-null hook discipline, cancellation that always frees the caller. Out of scope, deliberately: adversarial values (throwing/spinning accessors, proxies with hostile traps, prototype forgery, `prepareStackTrace` hijack) AND Node-API escape from the script's context — the vm context shares object machinery with its surrounding realm, so a script can reach the `Function` constructor (`globalThis.constructor.constructor`) and from it `process` and every Node builtin; the absent globals are API surface, not containment, and a worker thread is NOT a security boundary (an escapee holds process-wide privileges — Node's permission model is per-process). Worker-side code MAY run script code while reading script values, and that is accepted: a synchronous spin costs the script its OWN thread (terminated at the post-cancel grace), never the host loop, so containing error VALUES would be cost without a threat model. Genuine sandboxing (isolated-vm, a separate process) remains an engine swap behind the seam, not incremental defenses here. diff --git a/examples/acp-agent/composition.md b/examples/acp-agent/composition.md index 57be4be05e..06290d326e 100644 --- a/examples/acp-agent/composition.md +++ b/examples/acp-agent/composition.md @@ -31,8 +31,8 @@ flowchart LR cfg --> plugin_acp_tool_subagent plugin_acp_tool_subagent_fork["tool-subagent-fork
@deepseek-ai/dsh-tool-subagent"] cfg --> plugin_acp_tool_subagent_fork - plugin_acp_workflow_vm["workflow-vm
@deepseek-ai/dsh-workflow-vm"] - cfg --> plugin_acp_workflow_vm + plugin_acp_workflow_workerthread["workflow-workerthread
@deepseek-ai/dsh-workflow-workerthread"] + cfg --> plugin_acp_workflow_workerthread plugin_acp_tool_workflow["tool-workflow
@deepseek-ai/dsh-tool-workflow"] cfg --> plugin_acp_tool_workflow plugin_acp_tool_todo["tool-todo
@deepseek-ai/dsh-tool-todo"] @@ -59,7 +59,7 @@ flowchart LR | `subagent-fork` | `@deepseek-ai/dsh-subagent-fork` | | `tool-subagent` | `@deepseek-ai/dsh-tool-subagent` | | `tool-subagent-fork` | `@deepseek-ai/dsh-tool-subagent` | -| `workflow-vm` | `@deepseek-ai/dsh-workflow-vm` | +| `workflow-workerthread` | `@deepseek-ai/dsh-workflow-workerthread` | | `tool-workflow` | `@deepseek-ai/dsh-tool-workflow` | | `tool-todo` | `@deepseek-ai/dsh-tool-todo` | | `fs-local` | `@deepseek-ai/dsh-fs-local` | diff --git a/examples/acp-agent/cordis.yml b/examples/acp-agent/cordis.yml index f2015bc7c2..3a0d177005 100644 --- a/examples/acp-agent/cordis.yml +++ b/examples/acp-agent/cordis.yml @@ -86,8 +86,8 @@ # subagent backend above, plus the model-facing `workflow` tool. The model # writes a JavaScript orchestration script (meta + body); the engine runs it # in its own worker thread and fans agent() calls out as spawn children. -- id: workflow-vm - name: '@deepseek-ai/dsh-workflow-vm' +- id: workflow-workerthread + name: '@deepseek-ai/dsh-workflow-workerthread' config: provider: spawn diff --git a/examples/acp-agent/tests/acp.snapshot.ts b/examples/acp-agent/tests/acp.snapshot.ts index 1c3e524903..944ccd9b5b 100644 --- a/examples/acp-agent/tests/acp.snapshot.ts +++ b/examples/acp-agent/tests/acp.snapshot.ts @@ -108,7 +108,7 @@ const SCENARIOS: Scenario[] = [ { name: 'subagent-fork', hasModelTurn: true, recorded: true, childSessions: 1 }, { name: 'subagent-mixed', hasModelTurn: true, recorded: true, childSessions: 2 }, // The workflow tool: the model writes a one-child orchestration script; the - // child runs as a spawn subagent inside the vm engine (its session is the + // child runs as a spawn subagent under the worker-thread engine (its session is the // child fixture), and the tool result carries the script's return value. { name: 'workflow-run', hasModelTurn: true, recorded: true, childSessions: 1 }, // Hook matrix — one scenario per hook point × its headline Decision outcome, diff --git a/examples/coding-agent/composition.md b/examples/coding-agent/composition.md index 4ebf4c838d..be9a457124 100644 --- a/examples/coding-agent/composition.md +++ b/examples/coding-agent/composition.md @@ -35,8 +35,8 @@ flowchart LR cfg --> plugin_coding_tool_subagent plugin_coding_tool_subagent_fork["tool-subagent-fork
@deepseek-ai/dsh-tool-subagent"] cfg --> plugin_coding_tool_subagent_fork - plugin_coding_workflow_vm["workflow-vm
@deepseek-ai/dsh-workflow-vm"] - cfg --> plugin_coding_workflow_vm + plugin_coding_workflow_workerthread["workflow-workerthread
@deepseek-ai/dsh-workflow-workerthread"] + cfg --> plugin_coding_workflow_workerthread plugin_coding_tool_workflow["tool-workflow
@deepseek-ai/dsh-tool-workflow"] cfg --> plugin_coding_tool_workflow plugin_coding_tool_todo["tool-todo
@deepseek-ai/dsh-tool-todo"] @@ -61,7 +61,7 @@ flowchart LR | `subagent-fork` | `@deepseek-ai/dsh-subagent-fork` | | `tool-subagent` | `@deepseek-ai/dsh-tool-subagent` | | `tool-subagent-fork` | `@deepseek-ai/dsh-tool-subagent` | -| `workflow-vm` | `@deepseek-ai/dsh-workflow-vm` | +| `workflow-workerthread` | `@deepseek-ai/dsh-workflow-workerthread` | | `tool-workflow` | `@deepseek-ai/dsh-tool-workflow` | | `tool-todo` | `@deepseek-ai/dsh-tool-todo` | | `fs-local` | `@deepseek-ai/dsh-fs-local` | diff --git a/examples/coding-agent/cordis.yml b/examples/coding-agent/cordis.yml index ee55bced0b..cf2e267e06 100644 --- a/examples/coding-agent/cordis.yml +++ b/examples/coding-agent/cordis.yml @@ -107,8 +107,8 @@ # subagent backend above, plus the model-facing `workflow` tool. The model # writes a JavaScript orchestration script (meta + body); the engine runs it # in its own worker thread and fans agent() calls out as spawn children. -- id: workflow-vm - name: '@deepseek-ai/dsh-workflow-vm' +- id: workflow-workerthread + name: '@deepseek-ai/dsh-workflow-workerthread' config: provider: spawn diff --git a/knip.json b/knip.json index 717148a10a..5342aadc29 100644 --- a/knip.json +++ b/knip.json @@ -41,7 +41,7 @@ "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] }, - "packages/workflow/workflow-vm": { + "packages/workflow/workflow-workerthread": { "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] }, diff --git a/packages/workflow/README.md b/packages/workflow/README.md index a0750d9fdf..98fa3cfe04 100644 --- a/packages/workflow/README.md +++ b/packages/workflow/README.md @@ -5,7 +5,7 @@ The workflow seam: a model-written JavaScript orchestration script that fans out | Package | Role | ctx key | |---|---|---| | `workflow/` | Abstract workflow seam: service base class + run vocabulary + `workflow/*` events | `ctx.workflows` | -| `workflow-vm/` | `node:worker_threads` engine: one worker per run; the script's vm context lives inside the worker, `agent()` bridges to `ctx.subagents` over the message port | (provides `ctx.workflows`) | +| `workflow-workerthread/` | `node:worker_threads` engine: one worker per run; the script's vm context lives inside the worker, `agent()` bridges to `ctx.subagents` over the message port | (provides `ctx.workflows`) | | `tool-workflow/` | Model-facing `workflow` tool over `ctx.workflows` | (registers on `ctx.tools`) | The interface lives at `workflow/workflow/`. The engine's `agent()` hook rides the [subagent seam](../subagent/README.md) (any registered provider; the shipped examples use `spawn`), and `agent({ schema })` rides the structured-output support the in-process backends implement. The worker thread isolates the SCRIPT — the host never blocks on it, and a cancelled run's post-grace termination is real — but it is NOT a security boundary; an isolated-vm/separate-process engine (actual sandboxing) swaps in behind the same interface if that ever matters. diff --git a/packages/workflow/tool-workflow/package.json b/packages/workflow/tool-workflow/package.json index 7fb0d1ec48..f5c2138d85 100644 --- a/packages/workflow/tool-workflow/package.json +++ b/packages/workflow/tool-workflow/package.json @@ -40,7 +40,7 @@ "@deepseek-ai/dsh-system-prompt": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", "@deepseek-ai/dsh-workflow": "workspace:^", - "@deepseek-ai/dsh-workflow-vm": "workspace:^", + "@deepseek-ai/dsh-workflow-workerthread": "workspace:^", "cordis": "^4.0.0-rc.6" } } diff --git a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts index 2b6503cd45..dafc39bf46 100644 --- a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts +++ b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts @@ -10,7 +10,7 @@ import { WorkflowRunId, WorkflowService } from '@deepseek-ai/dsh-workflow' import type { WorkflowResult, WorkflowRun, WorkflowStartRequest } from '@deepseek-ai/dsh-workflow' import { CallId } from '@deepseek-ai/dsh-llm' import SubagentService from '@deepseek-ai/dsh-subagent' -import WorkerWorkflowEngine from '@deepseek-ai/dsh-workflow-vm' +import WorkerWorkflowEngine from '@deepseek-ai/dsh-workflow-workerthread' import * as toolWorkflow from '../src/index.ts' /** A controllable engine standing in behind ctx.workflows (the tool's only seam). */ diff --git a/packages/workflow/workflow-vm/README.md b/packages/workflow/workflow-workerthread/README.md similarity index 99% rename from packages/workflow/workflow-vm/README.md rename to packages/workflow/workflow-workerthread/README.md index 9a0ab21fef..0e763bdee9 100644 --- a/packages/workflow/workflow-vm/README.md +++ b/packages/workflow/workflow-workerthread/README.md @@ -1,4 +1,4 @@ -# @deepseek-ai/dsh-workflow-vm +# @deepseek-ai/dsh-workflow-workerthread The [`WorkflowService`](../workflow/README.md) implementation, on **`node:worker_threads`**: each run gets its OWN worker thread (one run = one worker, no pooling — a run is heavyweight, so the ~tens-of-ms thread spin-up is noise), the script executes in a vm context INSIDE that worker with the workflow hooks injected, and every `agent()` call bridges back over the message port to [`ctx.subagents`](../../subagent/README.md) on the host. Child agents are I/O-bound LLM loops and stay on the host event loop; the thread isolates the SCRIPT, the only part that can spin synchronously. diff --git a/packages/workflow/workflow-vm/package.json b/packages/workflow/workflow-workerthread/package.json similarity index 97% rename from packages/workflow/workflow-vm/package.json rename to packages/workflow/workflow-workerthread/package.json index a174893b9c..f86c74c2f7 100644 --- a/packages/workflow/workflow-vm/package.json +++ b/packages/workflow/workflow-workerthread/package.json @@ -1,5 +1,5 @@ { - "name": "@deepseek-ai/dsh-workflow-vm", + "name": "@deepseek-ai/dsh-workflow-workerthread", "description": "worker-thread workflow engine: executes model-written orchestration scripts off the host event loop, bridging agent() calls back to ctx.subagents", "version": "0.0.1", "private": true, diff --git a/packages/workflow/workflow-vm/src/host.ts b/packages/workflow/workflow-workerthread/src/host.ts similarity index 97% rename from packages/workflow/workflow-vm/src/host.ts rename to packages/workflow/workflow-workerthread/src/host.ts index b329e0c7d2..9d98d00933 100644 --- a/packages/workflow/workflow-vm/src/host.ts +++ b/packages/workflow/workflow-workerthread/src/host.ts @@ -22,7 +22,7 @@ * still queued worker-side for a concurrency slot are unknowable then; the * worker's own count rides the result message on every graceful path. * - * @module @deepseek-ai/dsh-workflow-vm/host + * @module @deepseek-ai/dsh-workflow-workerthread/host */ import { fileURLToPath } from 'node:url' @@ -190,7 +190,7 @@ export class WorkerRun implements WorkflowRun { // data, so serialization cannot fail); there is nothing left to // deliver to — log and move on. /* v8 ignore next -- postMessage teardown race (a throw between exit and its event): not constructible in-process */ - this.ctx.logger.warn(`workflow-vm: postMessage failed: ${renderThrown(error)}`) + this.ctx.logger.warn(`workflow-workerthread: postMessage failed: ${renderThrown(error)}`) } } @@ -293,7 +293,7 @@ export class WorkerRun implements WorkflowRun { // The subagent seam's dispose() is not supposed to reject; a backend // that does anyway must not wedge the script's finally (which awaits // the ack) — ack and move on. - this.ctx.logger.warn(`workflow-vm: child dispose failed: ${renderThrown(error)}`) + this.ctx.logger.warn(`workflow-workerthread: child dispose failed: ${renderThrown(error)}`) this.finishChild(callId) this.post(HostToWorkerType.ChildDisposed, { callId }) }, @@ -322,7 +322,7 @@ export class WorkerRun implements WorkflowRun { void run.dispose().then( () => { this.finishChild(callId) }, (error: unknown) => { - this.ctx.logger.warn(`workflow-vm: child dispose failed during reap: ${renderThrown(error)}`) + this.ctx.logger.warn(`workflow-workerthread: child dispose failed during reap: ${renderThrown(error)}`) this.finishChild(callId) }, ) diff --git a/packages/workflow/workflow-vm/src/index.ts b/packages/workflow/workflow-workerthread/src/index.ts similarity index 99% rename from packages/workflow/workflow-vm/src/index.ts rename to packages/workflow/workflow-workerthread/src/index.ts index 1b65381bfb..538252d90a 100644 --- a/packages/workflow/workflow-vm/src/index.ts +++ b/packages/workflow/workflow-workerthread/src/index.ts @@ -36,7 +36,7 @@ * Plugin export shape: a default-exported {@link WorkflowService} subclass * (the class-based service form, like `dsh-bash-local`). * - * @module @deepseek-ai/dsh-workflow-vm + * @module @deepseek-ai/dsh-workflow-workerthread */ import { randomUUID } from 'node:crypto' diff --git a/packages/workflow/workflow-vm/src/meta.ts b/packages/workflow/workflow-workerthread/src/meta.ts similarity index 99% rename from packages/workflow/workflow-vm/src/meta.ts rename to packages/workflow/workflow-workerthread/src/meta.ts index 75958ba6f1..e818bc6f00 100644 --- a/packages/workflow/workflow-vm/src/meta.ts +++ b/packages/workflow/workflow-workerthread/src/meta.ts @@ -14,7 +14,7 @@ * result — not the source — is the contract: it must materialize to plain * JSON data and pass the shape validation). * - * @module @deepseek-ai/dsh-workflow-vm/meta + * @module @deepseek-ai/dsh-workflow-workerthread/meta */ import * as vm from 'node:vm' diff --git a/packages/workflow/workflow-vm/src/protocol.ts b/packages/workflow/workflow-workerthread/src/protocol.ts similarity index 98% rename from packages/workflow/workflow-vm/src/protocol.ts rename to packages/workflow/workflow-workerthread/src/protocol.ts index 293676706e..ed6b54950a 100644 --- a/packages/workflow/workflow-vm/src/protocol.ts +++ b/packages/workflow/workflow-workerthread/src/protocol.ts @@ -13,7 +13,7 @@ * `post(type, payload)` whose payload parameter is looked up from the map, * so a tag/payload mismatch is a compile error at the call site. * - * @module @deepseek-ai/dsh-workflow-vm/protocol + * @module @deepseek-ai/dsh-workflow-workerthread/protocol */ import type { WorkflowAgentEndInfo, WorkflowAgentInfo, WorkflowResult } from '@deepseek-ai/dsh-workflow' diff --git a/packages/workflow/workflow-vm/src/realm.ts b/packages/workflow/workflow-workerthread/src/realm.ts similarity index 99% rename from packages/workflow/workflow-vm/src/realm.ts rename to packages/workflow/workflow-workerthread/src/realm.ts index 017de76069..393716c279 100644 --- a/packages/workflow/workflow-vm/src/realm.ts +++ b/packages/workflow/workflow-workerthread/src/realm.ts @@ -27,7 +27,7 @@ * thrown by a hook is built OUTSIDE the script's vm context, so an in-script * `instanceof Error` check is false; read `name`/`code`/`message` instead. * - * @module @deepseek-ai/dsh-workflow-vm/realm + * @module @deepseek-ai/dsh-workflow-workerthread/realm */ /** Thrown by {@link materializeFromRealm}; the caller wraps it into the right `WorkflowError` code. */ diff --git a/packages/workflow/workflow-vm/src/runtime.ts b/packages/workflow/workflow-workerthread/src/runtime.ts similarity index 99% rename from packages/workflow/workflow-vm/src/runtime.ts rename to packages/workflow/workflow-workerthread/src/runtime.ts index 3005520fa0..28450977c3 100644 --- a/packages/workflow/workflow-vm/src/runtime.ts +++ b/packages/workflow/workflow-workerthread/src/runtime.ts @@ -33,7 +33,7 @@ * the settles-within-grace guarantee by force-settling `cancelled` and * terminating the worker — the real kill an in-process engine could not have. * - * @module @deepseek-ai/dsh-workflow-vm/runtime + * @module @deepseek-ai/dsh-workflow-workerthread/runtime */ import * as vm from 'node:vm' diff --git a/packages/workflow/workflow-vm/src/session.ts b/packages/workflow/workflow-workerthread/src/session.ts similarity index 99% rename from packages/workflow/workflow-vm/src/session.ts rename to packages/workflow/workflow-workerthread/src/session.ts index 131f760ff9..718b8ac54d 100644 --- a/packages/workflow/workflow-vm/src/session.ts +++ b/packages/workflow/workflow-workerthread/src/session.ts @@ -14,7 +14,7 @@ * A `cancel` arriving instead of `go` still releases the gate: `drive()` * sees the cancelled state and settles without running the body. * - * @module @deepseek-ai/dsh-workflow-vm/session + * @module @deepseek-ai/dsh-workflow-workerthread/session */ import type { MessagePort } from 'node:worker_threads' diff --git a/packages/workflow/workflow-vm/src/types.ts b/packages/workflow/workflow-workerthread/src/types.ts similarity index 98% rename from packages/workflow/workflow-vm/src/types.ts rename to packages/workflow/workflow-workerthread/src/types.ts index c87fc4668c..329523ffc8 100644 --- a/packages/workflow/workflow-vm/src/types.ts +++ b/packages/workflow/workflow-workerthread/src/types.ts @@ -6,7 +6,7 @@ * JSON data by construction, so the structured-clone hop never meets a value * it cannot carry. Types only, per the package convention. * - * @module @deepseek-ai/dsh-workflow-vm/types + * @module @deepseek-ai/dsh-workflow-workerthread/types */ import type { ContentBlock } from '@deepseek-ai/dsh-llm' diff --git a/packages/workflow/workflow-vm/src/worker.ts b/packages/workflow/workflow-workerthread/src/worker.ts similarity index 93% rename from packages/workflow/workflow-vm/src/worker.ts rename to packages/workflow/workflow-workerthread/src/worker.ts index 3b20600d7d..f468ad9a53 100644 --- a/packages/workflow/workflow-vm/src/worker.ts +++ b/packages/workflow/workflow-workerthread/src/worker.ts @@ -6,7 +6,7 @@ * coverage); loading this module on the main thread throws via * `requireParentPort`, which is how the suite covers the file itself. * - * @module @deepseek-ai/dsh-workflow-vm/worker + * @module @deepseek-ai/dsh-workflow-workerthread/worker */ import { parentPort, workerData } from 'node:worker_threads' diff --git a/packages/workflow/workflow-vm/tests/built-worker.e2e.ts b/packages/workflow/workflow-workerthread/tests/built-worker.e2e.ts similarity index 97% rename from packages/workflow/workflow-vm/tests/built-worker.e2e.ts rename to packages/workflow/workflow-workerthread/tests/built-worker.e2e.ts index 9bdd3865bb..d541b4c0ff 100644 --- a/packages/workflow/workflow-vm/tests/built-worker.e2e.ts +++ b/packages/workflow/workflow-workerthread/tests/built-worker.e2e.ts @@ -28,7 +28,7 @@ describe.skipIf(!existsSync(builtIndex) || !existsSync(builtWorker))('built work await writeFile(driver, ` import { Context } from 'cordis' import SubagentService from '@deepseek-ai/dsh-subagent' -import WorkerWorkflowEngine from '@deepseek-ai/dsh-workflow-vm' +import WorkerWorkflowEngine from '@deepseek-ai/dsh-workflow-workerthread' const ctx = new Context() await ctx.plugin(SubagentService) diff --git a/packages/workflow/workflow-vm/tests/integration.spec.ts b/packages/workflow/workflow-workerthread/tests/integration.spec.ts similarity index 98% rename from packages/workflow/workflow-vm/tests/integration.spec.ts rename to packages/workflow/workflow-workerthread/tests/integration.spec.ts index e53ea518bc..ae58a536f8 100644 --- a/packages/workflow/workflow-vm/tests/integration.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/integration.spec.ts @@ -41,7 +41,7 @@ async function setup(script: Script) { return { ctx, parent, adapter } } -describe('dsh-workflow-vm over the real in-process stack', () => { +describe('dsh-workflow-workerthread over the real in-process stack', () => { it('runs a two-stage workflow: a plain child, then a schema child through the structured runtime', async () => { const { ctx, parent } = await setup([ textResponse('the file list is a.ts'), diff --git a/packages/workflow/workflow-vm/tests/meta.spec.ts b/packages/workflow/workflow-workerthread/tests/meta.spec.ts similarity index 100% rename from packages/workflow/workflow-vm/tests/meta.spec.ts rename to packages/workflow/workflow-workerthread/tests/meta.spec.ts diff --git a/packages/workflow/workflow-vm/tests/realm.spec.ts b/packages/workflow/workflow-workerthread/tests/realm.spec.ts similarity index 100% rename from packages/workflow/workflow-vm/tests/realm.spec.ts rename to packages/workflow/workflow-workerthread/tests/realm.spec.ts diff --git a/packages/workflow/workflow-vm/tests/session.spec.ts b/packages/workflow/workflow-workerthread/tests/session.spec.ts similarity index 100% rename from packages/workflow/workflow-vm/tests/session.spec.ts rename to packages/workflow/workflow-workerthread/tests/session.spec.ts diff --git a/packages/workflow/workflow-vm/tests/workflow.e2e.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.e2e.ts similarity index 100% rename from packages/workflow/workflow-vm/tests/workflow.e2e.ts rename to packages/workflow/workflow-workerthread/tests/workflow-workerthread.e2e.ts diff --git a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts similarity index 99% rename from packages/workflow/workflow-vm/tests/workflow-vm.spec.ts rename to packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index 7264877f48..9e2218c167 100644 --- a/packages/workflow/workflow-vm/tests/workflow-vm.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -119,7 +119,7 @@ async function run(ctx: Context, parent: Agent, source: string, args?: unknown): } } -describe('dsh-workflow-vm', () => { +describe('dsh-workflow-workerthread', () => { describe('script execution over a real worker thread', () => { it('runs a script end-to-end: agent() text results, phases, log, args, return value, events', async () => { const { ctx, parent, provider } = await setup({ reply: (_request, index) => text(`answer-${index}`) }) diff --git a/packages/workflow/workflow-vm/tsconfig.json b/packages/workflow/workflow-workerthread/tsconfig.json similarity index 100% rename from packages/workflow/workflow-vm/tsconfig.json rename to packages/workflow/workflow-workerthread/tsconfig.json diff --git a/packages/workflow/workflow-vm/tsdown.config.ts b/packages/workflow/workflow-workerthread/tsdown.config.ts similarity index 100% rename from packages/workflow/workflow-vm/tsdown.config.ts rename to packages/workflow/workflow-workerthread/tsdown.config.ts diff --git a/packages/workflow/workflow/README.md b/packages/workflow/workflow/README.md index 96add5017e..317aaf9f81 100644 --- a/packages/workflow/workflow/README.md +++ b/packages/workflow/workflow/README.md @@ -1,6 +1,6 @@ # @deepseek-ai/dsh-workflow -The **workflow seam** (`ctx.workflows`): an abstract service defining WHAT a workflow engine does — execute a model-written orchestration script that fans out subagents — without saying HOW. The bash-shaped third of the [workflow family](../README.md): implementations subclass `WorkflowService` and register as the `workflows` service (one per context); [`dsh-workflow-vm`](../workflow-vm/README.md) (one worker thread per run) is the implementation, and [`dsh-tool-workflow`](../tool-workflow/README.md) is the model-facing consumer. +The **workflow seam** (`ctx.workflows`): an abstract service defining WHAT a workflow engine does — execute a model-written orchestration script that fans out subagents — without saying HOW. The bash-shaped third of the [workflow family](../README.md): implementations subclass `WorkflowService` and register as the `workflows` service (one per context); [`dsh-workflow-workerthread`](../workflow-workerthread/README.md) (one worker thread per run) is the implementation, and [`dsh-tool-workflow`](../tool-workflow/README.md) is the model-facing consumer. ## Service: `WorkflowService` (abstract) diff --git a/packages/workflow/workflow/src/index.ts b/packages/workflow/workflow/src/index.ts index 2a57d143b6..6c2b797362 100644 --- a/packages/workflow/workflow/src/index.ts +++ b/packages/workflow/workflow/src/index.ts @@ -4,7 +4,7 @@ * that fans out subagents — without saying HOW. Implementations subclass * {@link WorkflowService} and register as the `workflows` service (one * implementation per context, cordis' standard duplicate-service behavior); - * the implementation is `@deepseek-ai/dsh-workflow-vm`, which runs each + * the implementation is `@deepseek-ai/dsh-workflow-workerthread`, which runs each * script in its own worker thread. Hardened engines (an isolated-vm or * separate-process sandbox) swap in without touching the model-facing tool * that consumes them (`@deepseek-ai/dsh-tool-workflow`). diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index e3e1892e35..c3ce677f83 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -1092,9 +1092,9 @@ importers: '@deepseek-ai/dsh-workflow': specifier: workspace:^ version: link:../workflow - '@deepseek-ai/dsh-workflow-vm': + '@deepseek-ai/dsh-workflow-workerthread': specifier: workspace:^ - version: link:../workflow-vm + version: link:../workflow-workerthread cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -1117,7 +1117,7 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) - packages/workflow/workflow-vm: + packages/workflow/workflow-workerthread: dependencies: schemastery: specifier: ^3.18.0 diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 0abe1a34cf..31e010f55c 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -191,7 +191,7 @@ const SERVICE_ROLES: ServiceRole[] = [ pkg: 'workflow', title: 'Workflow script engine', mode: 'seam', - implementations: ['workflow-vm'], + implementations: ['workflow-workerthread'], consumers: ['tool-workflow'], note: 'One engine per context (bash shape, no named-provider registry); the worker-thread engine fans agent() calls out through ctx.subagents.', }, diff --git a/scripts/gen-tool-catalog.ts b/scripts/gen-tool-catalog.ts index 27481a6304..42795ec00e 100644 --- a/scripts/gen-tool-catalog.ts +++ b/scripts/gen-tool-catalog.ts @@ -51,7 +51,7 @@ import * as ToolFs from '@deepseek-ai/dsh-tool-fs' import * as ToolTodo from '@deepseek-ai/dsh-tool-todo' import * as ToolSubagent from '@deepseek-ai/dsh-tool-subagent' import * as ToolWeb from '@deepseek-ai/dsh-tool-web' -import VmWorkflowEngine from '@deepseek-ai/dsh-workflow-vm' +import VmWorkflowEngine from '@deepseek-ai/dsh-workflow-workerthread' import * as ToolWorkflow from '@deepseek-ai/dsh-tool-workflow' const root = resolve(import.meta.dirname, '..') diff --git a/scripts/run-gates.ts b/scripts/run-gates.ts index 25e08cf8d2..3b4a3568cb 100644 --- a/scripts/run-gates.ts +++ b/scripts/run-gates.ts @@ -313,7 +313,7 @@ function builtBinSmokeGate(): Gate { // The workflow engine's built worker bundle: the only automated proof // that lib/index.js resolves its sibling lib/worker.js under plain node // (the e2e lane runs unbuilt, so this file self-skips there). - 'packages/workflow/workflow-vm/tests/built-worker.e2e.ts', + 'packages/workflow/workflow-workerthread/tests/built-worker.e2e.ts', ], { label: 'built-bin smoke', needs: ['build'], diff --git a/tsconfig.build.json b/tsconfig.build.json index 93cce8f4b9..018c29ec37 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -52,7 +52,7 @@ { "path": "./packages/subagent/subagent-fork" }, { "path": "./packages/subagent/subagent-acp" }, { "path": "./packages/workflow/workflow" }, - { "path": "./packages/workflow/workflow-vm" }, + { "path": "./packages/workflow/workflow-workerthread" }, { "path": "./packages/workflow/tool-workflow" }, { "path": "./packages/todo/tool-todo" }, { "path": "./packages/hooks/hook-protocol" }, diff --git a/tsconfig.json b/tsconfig.json index ba5ccbac26..0cad85791c 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -63,7 +63,7 @@ { "path": "./packages/subagent/subagent-fork" }, { "path": "./packages/subagent/subagent-acp" }, { "path": "./packages/workflow/workflow" }, - { "path": "./packages/workflow/workflow-vm" }, + { "path": "./packages/workflow/workflow-workerthread" }, { "path": "./packages/workflow/tool-workflow" }, { "path": "./packages/todo/tool-todo" }, { "path": "./packages/hooks/hook-protocol" }, From af9616f47d87f317d5bc07b90015b3bdaee7524c Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 19:12:58 +0800 Subject: [PATCH 141/232] test: let the wedged-worker regression post its child-start first MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The regression's script spun immediately after calling agent(), but the agent() continuation (which posts the child-start RPC) only runs on a microtask tick — the spin seized the worker's loop before the post, so the host never saw a child inside the waitFor window. A few await-null yields before the spin let the RPC out; the posted message needs no further worker-loop turns to reach the host, so the wedge still holds for the Cancel message the test is about. --- .../tests/workflow-workerthread.spec.ts | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index 9e2218c167..20911d052e 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -511,9 +511,13 @@ describe('dsh-workflow-workerthread', () => { // The stray child's start RPC reaches the host, then the script wedges // its own worker in a synchronous spin: the worker cannot process the // Cancel message, so it can relay NO ChildCancel RPC — only the host's - // own children loop can deliver the explicit cancel in time. + // own children loop can deliver the explicit cancel in time. The + // microtask yields let the agent() continuation POST its child-start + // before the spin seizes the worker's loop (the posted message needs + // no further worker-loop turns to reach the host). script: script(` agent('wedged child') + for (let i = 0; i < 20; i++) await null const end = Date.now() + 1500 while (Date.now() < end) {} return 'raced' From 0d0f0204f206fbea27530919f49c48cf0f3245d6 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 20:09:10 +0800 Subject: [PATCH 142/232] =?UTF-8?q?workflow:=20meta=20rides=20the=20seam?= =?UTF-8?q?=20as=20data=20=E2=80=94=20the=20engine=20never=20evaluates=20i?= =?UTF-8?q?t?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit P1 review finding: extractMeta timed only the literal's vm evaluation; materializing the RESULT then read properties ordinarily on the HOST stack, so a meta literal smuggling a getter (get name() { while(true){} }) could wedge the host outside any timeout — defeating the exact spin isolation the worker thread exists for. Rather than harden the evaluator (descriptor walks, AST validation), delete the mechanism: the workflow's identity now reaches the seam as a plain JSON field (WorkflowStartRequest.meta), carried by the tool as a schema-validated `meta` object parameter the model fills directly. The engine only shape-validates data (validateMeta, every violation named) and pre-parses the body; the scanner, the vm evaluation, and the host-side materialization are gone, and with them the hole. A body still opening with a Claude Code-style `export const meta` statement gets a pointed SCRIPT_PARSE message (the likeliest authoring slip; a CC script's body stays drop-in, only its meta header moves into the parameter). syncTimeoutMs now governs exactly one thing: the initial synchronous slice inside the worker. The RFC's decision section is rewritten in place (implemented-RFC rule); the embedded-meta format moves to alternatives-considered with the hole as the reason. Tool description, presentation (title now reads meta.name directly — the textual sniff is gone), seam vocabulary docs, and catalogs follow. --- docs/config-catalog.md | 4 +- docs/core-data-structures/workflow.md | 7 +- .../feature/2026-07-05-dynamic-workflows.md | 10 +- docs/tool-catalog.md | 53 +++- packages/workflow/tool-workflow/src/index.ts | 53 ++-- .../tool-workflow/tests/tool-workflow.spec.ts | 46 ++-- .../workflow/workflow-workerthread/README.md | 8 +- .../workflow-workerthread/src/index.ts | 35 ++- .../workflow-workerthread/src/meta.ts | 196 ++------------- .../workflow-workerthread/src/runtime.ts | 2 +- .../workflow-workerthread/src/types.ts | 4 +- .../tests/built-worker.e2e.ts | 3 +- .../tests/integration.spec.ts | 8 +- .../workflow-workerthread/tests/meta.spec.ts | 228 +++++------------- .../tests/workflow-workerthread.e2e.ts | 6 +- .../tests/workflow-workerthread.spec.ts | 79 +++--- packages/workflow/workflow/README.md | 2 +- packages/workflow/workflow/src/types.ts | 22 +- 18 files changed, 304 insertions(+), 462 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 1649ad4e26..65ef893528 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -685,7 +685,7 @@ export interface Config { } ``` -Source: [`packages/workflow/tool-workflow/src/index.ts:40`](../packages/workflow/tool-workflow/src/index.ts) +Source: [`packages/workflow/tool-workflow/src/index.ts:39`](../packages/workflow/tool-workflow/src/index.ts) ## `@deepseek-ai/dsh-web` @@ -815,7 +815,7 @@ export interface Config { maxTotalAgents?: number /** Items accepted by a single `parallel()`/`pipeline()` call (default 4096). */ maxItemsPerCall?: number - /** vm timeout for the initial synchronous slice (inside the worker) AND the host-side meta evaluation (default 5000 ms). */ + /** vm timeout for the script's initial synchronous slice, inside the worker (default 5000 ms). */ syncTimeoutMs?: number /** * How long after a cancellation an unsettled script may keep running before diff --git a/docs/core-data-structures/workflow.md b/docs/core-data-structures/workflow.md index 36ad3be330..4354105e70 100644 --- a/docs/core-data-structures/workflow.md +++ b/docs/core-data-structures/workflow.md @@ -8,20 +8,21 @@ Source: [`packages/workflow/workflow/src/types.ts`](../../packages/workflow/work ## The start request -What a caller asks for when starting a run. The tool layer builds this from the model's `{ script, args }` plus the calling agent; the engine validates the script's meta block BEFORE the body runs. `parent` is REQUIRED — every child the script spawns is attributed to it (cwd, lineage, and depth flow through the [subagent seam](subagent.md)). `args` must be plain host-realm JSON data; the engine exposes it to the script as the `args` global. +What a caller asks for when starting a run. The tool layer builds this from the model's `{ script, meta, args }` call plus the calling agent; `meta` and `args` are plain JSON DATA (the engine shape-validates `meta` and rejects loud BEFORE anything runs — no script text is ever evaluated to obtain it). `parent` is REQUIRED — every child the script spawns is attributed to it (cwd, lineage, and depth flow through the [subagent seam](subagent.md)). ```ts type-equiv interface WorkflowStartRequest { script: string + meta: WorkflowMeta args?: unknown parent: Agent signal?: AbortSignal } ``` -## The script's identity: `WorkflowMeta` +## The workflow's identity: `WorkflowMeta` -The validated `export const meta` block (Claude Code dynamic-workflows format — a PURE object literal heading the script). `phases` is progress vocabulary only: `phase()` calls match titles for observers; no execution structure is implied. +The identity block carried as data on the start request (the tool's `meta` parameter; the field vocabulary matches the Claude Code dynamic-workflows meta block). `phases` is progress vocabulary only: `phase()` calls match titles for observers; no execution structure is implied. ```ts type-equiv interface WorkflowMeta { diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index 029e090cb1..2f711651f6 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -12,7 +12,7 @@ A workflow capability family at `packages/workflow/` in the bash seam shape (int ### The script contract (Claude Code-compatible) -A script is `export const meta = {...}` (a PURE object literal: `name`, `description`, optional `whenToUse`/`phases`) followed by a plain-JS body with top-level `await`, ending in `return `. The body sees exactly: `agent(prompt, {label, phase, schema, model})`, `parallel(thunks)`, `pipeline(items, ...stages)` (NO cross-stage barrier; `(prev, item, index)` callbacks), `phase(title)`, `log(message)`, and `args`. CC semantics are preserved where they matter to script authors: a failed child resolves `null` (scripts `.filter(Boolean)`); an ordinary stage throw nulls the ITEM and skips its remaining stages. CC's determinism bans (`Date.now()`/`Math.random()`/argless `new Date()` throwing) are NOT enforced — they exist for CC's journaling/resume, which this cut defers — so a CC-authored script runs unchanged while scripts written here may freely read the clock. +A workflow call is two parts: a `meta` JSON parameter (the identity block — `name`, `description`, optional `whenToUse`/`phases`; the field vocabulary matches Claude Code's meta block) and a `script` — a plain-JS body with top-level `await`, ending in `return `. Meta is DATA, never code: the engine shape-validates it and evaluates no script text to obtain it (a body still opening with a CC-style `export const meta` statement is rejected with a pointed message). The body sees exactly: `agent(prompt, {label, phase, schema, model})`, `parallel(thunks)`, `pipeline(items, ...stages)` (NO cross-stage barrier; `(prev, item, index)` callbacks), `phase(title)`, `log(message)`, and `args`. CC semantics are preserved where they matter to script authors: a failed child resolves `null` (scripts `.filter(Boolean)`); an ordinary stage throw nulls the ITEM and skips its remaining stages. CC's determinism bans (`Date.now()`/`Math.random()`/argless `new Date()` throwing) are NOT enforced — they exist for CC's journaling/resume, which this cut defers — so a CC-authored BODY runs unchanged (its meta header moves into the parameter) while scripts written here may freely read the clock. One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferred options (`effort`/`isolation`/`agentType`), malformed arguments, schemas outside the supported subset, tripped caps, seam start failures — throws a `WorkflowError` with `fatal: true`, and the combinators RE-THROW fatal errors instead of nulling the item. Without this, a typo'd option dissolves into a `null` indistinguishable from a child failure — the accepted-then-ignored failure mode this repo bans. One addition: the tool's `args` parameter is a JSON OBJECT (a bare list is wrapped as a field) so the wire schema stays honest. @@ -24,15 +24,15 @@ One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferre **Trust premise (governs every engine decision below)**: workflow scripts are MODEL-WRITTEN — the same trust level as the model's existing bash access — so the engine defends against BUGGY scripts, never hostile ones. In scope: `result` never rejects, no unhandled rejections from dropped hook promises, loud rejection of values JSON cannot carry, fatal-vs-null hook discipline, cancellation that always frees the caller. Out of scope, deliberately: adversarial values (throwing/spinning accessors, proxies with hostile traps, prototype forgery, `prepareStackTrace` hijack) AND Node-API escape from the script's context — the vm context shares object machinery with its surrounding realm, so a script can reach the `Function` constructor (`globalThis.constructor.constructor`) and from it `process` and every Node builtin; the absent globals are API surface, not containment, and a worker thread is NOT a security boundary (an escapee holds process-wide privileges — Node's permission model is per-process). Worker-side code MAY run script code while reading script values, and that is accepted: a synchronous spin costs the script its OWN thread (terminated at the post-cancel grace), never the host loop, so containing error VALUES would be cost without a threat model. Genuine sandboxing (isolated-vm, a separate process) remains an engine swap behind the seam, not incremental defenses here. -**Why node:worker_threads**: one run = one worker thread, no pooling — a run is heavyweight (many children), so thread spin-up (~tens of ms) is noise. The script runs in a vm context INSIDE the worker, keeping the script-visible surface exactly the hook contract above (a bare worker realm would leak `setTimeout`/`fetch`/`process` as accidental API), and every `agent()` bridges to `ctx.subagents` by message-port RPC — children are I/O-bound LLM loops and stay on the host loop; the thread isolates the SCRIPT, the only part that can spin. What the thread buys: `start()` never blocks the host (an in-process engine runs the initial synchronous slice inline and cannot kill a spin past the first await — it could only ABANDON such a script, leaving the spin on the host loop), the post-cancel grace ends in a REAL `worker.terminate()`, and the value boundary is serialization by construction. isolated-vm was rejected for actual sandboxing: maintenance mode, `--no-node-snapshot` on EVERY consumer process (including published bins) on Node ≥ 20, node-gyp source-build fallback. Key mechanics (details in the package README): meta extraction and a body pre-parse stay HOST-side (preserving the seam's synchronous throws), a ready→go handshake keeps a run cancelled before start from ever executing the body, `cancel()` drives both child-cancel channels host-side (the shared request signal AND each child's explicit `cancel()` — a wedged worker cannot relay its own cancel RPCs), a host-side child registry backs worker-death reaping and `dispose()` quiescence, the wire protocol is enum-keyed payload maps private to the package, and on a termination path `agentsStarted` degrades to the host-observed count. Coverage puts the worker-side session on an in-process `MessageChannel` (real-Worker code is invisible to main-process v8) and proves the built `lib/worker.js` — a second tsdown entry, sanctioned in the workspace-constraints gate by the `"./worker"` subpath export — under plain node in the built-bin smoke gate. +**Why node:worker_threads**: one run = one worker thread, no pooling — a run is heavyweight (many children), so thread spin-up (~tens of ms) is noise. The script runs in a vm context INSIDE the worker, keeping the script-visible surface exactly the hook contract above (a bare worker realm would leak `setTimeout`/`fetch`/`process` as accidental API), and every `agent()` bridges to `ctx.subagents` by message-port RPC — children are I/O-bound LLM loops and stay on the host loop; the thread isolates the SCRIPT, the only part that can spin. What the thread buys: `start()` never blocks the host (an in-process engine runs the initial synchronous slice inline and cannot kill a spin past the first await — it could only ABANDON such a script, leaving the spin on the host loop), the post-cancel grace ends in a REAL `worker.terminate()`, and the value boundary is serialization by construction. isolated-vm was rejected for actual sandboxing: maintenance mode, `--no-node-snapshot` on EVERY consumer process (including published bins) on Node ≥ 20, node-gyp source-build fallback. Key mechanics (details in the package README): meta shape-validation and a body pre-parse stay HOST-side (preserving the seam's synchronous throws), a ready→go handshake keeps a run cancelled before start from ever executing the body, `cancel()` drives both child-cancel channels host-side (the shared request signal AND each child's explicit `cancel()` — a wedged worker cannot relay its own cancel RPCs), a host-side child registry backs worker-death reaping and `dispose()` quiescence, the wire protocol is enum-keyed payload maps private to the package, and on a termination path `agentsStarted` degrades to the host-observed count. Coverage puts the worker-side session on an in-process `MessageChannel` (real-Worker code is invisible to main-process v8) and proves the built `lib/worker.js` — a second tsdown entry, sanctioned in the workspace-constraints gate by the `"./worker"` subpath export — under plain node in the built-bin smoke gate. -**Meta extraction**: a string/comment-aware brace scanner (template interpolation rejected) finds the literal; it is evaluated ALONE in an empty, timed vm context; the result must materialize to plain JSON data and pass shape validation (unknown fields rejected loud); the statement is blanked line-preservingly so stacks keep script line numbers. +**Meta as data, never evaluated**: the meta block reaches the seam as a plain JSON request field (the tool's schema-validated `meta` parameter) and the engine only shape-validates it, every violation named. This is a host-isolation invariant, not a convenience: evaluating a meta literal host-side — even one contractually "pure", in an empty timed vm context — hands script-controlled getters a host stack with no timeout the moment the result is READ, defeating the exact spin isolation the worker thread buys. **Value boundary**: values leaving the script (meta, hook options, schemas, the return value) go through `materializeFromRealm` — a plain recursive walk that rejects loud everything JSON cannot carry (exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`), copying via `Object.defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation; getters are read ordinarily and their RESULT crosses (a throwing read fails loud) — which is also what makes every later postMessage hop total. Values entering the realm (`args`, `agent()` results, hook promises and failures, combinator arrays) are handed over directly as worker-realm values — the script is trusted, so outer prototypes are not a leak; `args` rides the `workerData` structured clone (the caller-isolation copy) and is cloned once more so a script scribbling on it cannot mutate the session's init object. Hook failures are `WorkflowError`s built OUTSIDE the script's context: the combinators recognize fatality by `instanceof` against the engine's own class (unforgeable from the script), and the script-visible consequence — in-script `instanceof Error` is `false` for hook errors; branch on `e.name`/`e.code` — is documented in the engine README. Realm functions (stages, thunks) are called, never materialized. Thrown script values are rendered by a total renderer (stack → message → `String()`, fixed label if rendering throws), so `result` cannot reject. Caps (`maxConcurrentAgents` auto = `min(16, max(1, availableParallelism() - 2))`, `maxTotalAgents` 1000, `maxItemsPerCall` 4096) and timeouts are validated Config, not literals. ### The consumer (dsh-tool-workflow) -A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, await, `try/finally` dispose, abort-bridge `exec.signal`, non-`completed` → `isError`. Render intent: a `generic` card titled by a textual `meta.name` sniff (presentation is a pure function of args). The tool description IS the model-facing authoring spec. The usage policy ships with the tool as its own `tool:` prompt section (explicit-ask-only guidance — tool guidance lives in tool plugins, never in the deployment persona); the harness has no ultracode-style effort gate. +A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, await, `try/finally` dispose, abort-bridge `exec.signal`, non-`completed` → `isError`. Render intent: a `generic` card titled by the call's `meta.name` parameter (presentation is a pure function of args). The tool description IS the model-facing authoring spec. The usage policy ships with the tool as its own `tool:` prompt section (explicit-ask-only guidance — tool guidance lives in tool plugins, never in the deployment persona); the harness has no ultracode-style effort gate. ### The foundation: structured output on the subagent seam @@ -55,7 +55,7 @@ A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, awai - **In-process `node:vm` execution** (the first cut of this RFC shipped it): mechanically simplest — no RPC, no thread — but `start()` blocks the caller for the script's initial synchronous slice, a synchronous spin past the first await cannot be killed in-process (the vm `timeout` covers only that first slice), and `dispose()` could only ABANDON an unsettling script, leaving the spin on the host loop. Superseded by the worker-thread engine, which keeps the same vm-context script surface while unblocking the host and making termination real. - **Background execution as the default** (CC's shape): deferred; foreground-synchronous matches `dsh-tool-subagent`'s cut, and background semantics should be designed ONCE across bash/subagent/workflow rather than per-tool. - **Workflow-layer JSON parsing for `agent({schema})`**: duplicating a seam concern at one consumer while the seam's capability flag stayed dishonestly `false`. -- **Meta as tool parameters instead of `export const meta`**: zero parsing, but scripts stop being self-contained artifacts and CC-authored scripts stop being drop-in. +- **Meta embedded in the script as `export const meta = {...}`** (CC's exact format; the first cut shipped it): keeps scripts self-contained and CC scripts drop-in, but obtaining meta means evaluating model-written text on the HOST — the shipped extractor ran the literal in an empty timed vm context, yet reading the RESULT still executed script-controlled getters on the host stack outside any timeout, re-opening the host-spin hole the worker thread exists to close. A JSON parameter deletes the scanner, the evaluation, and the hole outright; the cost is that a CC script's meta header must move into the parameter (the body stays drop-in). - **`SchemaSpec` as the outputSchema type**: the author-facing DSL cannot express what arrives as data and cannot be validated against without conversion loss. - **A schema-object library (zod, or the repo's schemastery) for the structured-output subset**: the schema is wire data — plain JSON that crosses the vm realm boundary in `agent({schema})` and lands verbatim in the forced tool's parameters — exactly where live schema objects cannot sit; consuming raw JSON Schema at runtime would need a third-party converter on top (zod core only emits JSON Schema, not the reverse), and it would put a second schema language beside schemastery's config role. - **ajv for value validation**: it validates FULL JSON Schema, so the subset gate — the module's actual point, since every accepted keyword must be one the harness enforces — would remain hand-written regardless; it compiles validators through `new Function`; and it would be dsh-tools' first runtime dependency, all to replace the ~70-line value walker while the path-qualified, every-violation error reporting stays custom either way. diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md index 3794b1d7a7..088147b799 100644 --- a/docs/tool-catalog.md +++ b/docs/tool-catalog.md @@ -283,7 +283,7 @@ todo_write is session-owned state; UIs render the latest todo/write event as a c Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. -The script MUST begin with `export const meta = {...}` — a PURE object literal (no variables, calls, or template interpolation) with required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The body after it is plain JavaScript (NOT TypeScript) running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result. +The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. @@ -301,7 +301,53 @@ Constraints: concurrency and total-agent caps apply; no filesystem, network, tim "properties": { "script": { "type": "string", - "description": "The complete workflow script: `export const meta = {...}` followed by the plain-JS body (top-level await allowed; end with `return `)." + "description": "The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `)." + }, + "meta": { + "type": "object", + "description": "The workflow identity block (plain JSON — never code).", + "properties": { + "name": { + "type": "string", + "description": "Short kebab-case workflow name." + }, + "description": { + "type": "string", + "description": "One-line description of what the workflow does." + }, + "whenToUse": { + "type": "string", + "description": "Optional guidance on when this workflow applies." + }, + "phases": { + "type": "array", + "description": "Optional phase declarations matched by phase() calls.", + "items": { + "type": "object", + "properties": { + "title": { + "type": "string", + "description": "The phase title phase() calls match by exact string." + }, + "detail": { + "type": "string", + "description": "Optional one-line description of the phase." + }, + "model": { + "type": "string", + "description": "Optional model override this phase is expected to use." + } + }, + "required": [ + "title" + ] + } + } + }, + "required": [ + "name", + "description" + ] }, "args": { "type": "object", @@ -309,7 +355,8 @@ Constraints: concurrency and total-agent caps apply; no filesystem, network, tim } }, "required": [ - "script" + "script", + "meta" ] } ``` diff --git a/packages/workflow/tool-workflow/src/index.ts b/packages/workflow/tool-workflow/src/index.ts index 22ab21ffc6..7cd1606b47 100644 --- a/packages/workflow/tool-workflow/src/index.ts +++ b/packages/workflow/tool-workflow/src/index.ts @@ -13,9 +13,8 @@ * collection is deferred to the cross-tool background redesign. * * Render intent (decided up front, per the render-intent RFC): a `generic` - * card whose title carries the script's `meta.name`, sniffed textually from - * the args — presentation must be a pure function of `args`, so it cannot ask - * the engine to parse. + * card whose title carries the workflow's `meta.name`, read directly from the + * call's `meta` parameter — presentation is a pure function of `args`. * * Usage policy ships with the tool as a `tool:` system-prompt * section (explicit-ask-only guidance) — tool guidance lives in tool plugins, @@ -58,7 +57,7 @@ type ResolvedConfig = Required */ const DESCRIPTION = `Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. -The script MUST begin with \`export const meta = {...}\` — a PURE object literal (no variables, calls, or template interpolation) with required \`name\` (short kebab-case) and \`description\` strings, optional \`whenToUse\` string and \`phases\` array (\`{title, detail?, model?}\`). The body after it is plain JavaScript (NOT TypeScript) running with top-level await; end with \`return \` — the value must be JSON-serializable and is this tool's result. +The workflow's identity rides the \`meta\` parameter as JSON: required \`name\` (short kebab-case) and \`description\` strings, optional \`whenToUse\` string and \`phases\` array (\`{title, detail?, model?}\`). The \`script\` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO \`export const meta\` statement — meta is a parameter, not code), running with top-level await; end with \`return \` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - \`agent(prompt, opts?): Promise\` — run one subagent to completion. Without \`opts.schema\` it resolves to the child's final text; with \`opts.schema\` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves \`null\` when the child fails (filter with \`.filter(Boolean)\`). Other opts: \`label\` (display), \`phase\` (progress group), \`model\` (override). Anything else (\`effort\`/\`isolation\`/\`agentType\`) is rejected loudly. @@ -70,20 +69,17 @@ Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.` -type WorkflowCallArgs = { script: string; args?: Record } - -/** Best-effort meta.name sniff for presentation (pure textual; no evaluation). */ -function sniffMetaName(script: string): string | undefined { - const match = /export\s+const\s+meta\s*=\s*\{[^{}]*?name\s*:\s*(['"`])([^'"`\n]{1,64})\1/.exec(script) - return match?.[2] +type WorkflowCallArgs = { + script: string + meta: { name: string; description: string; whenToUse?: string; phases?: { title: string; detail?: string; model?: string }[] } + args?: Record } -/** The pending-state card: a generic card titled by the script's meta name. */ +/** The pending-state card: a generic card titled by the workflow's meta name. */ function presentWorkflowCall(args: WorkflowCallArgs): ToolCallView { - const name = sniffMetaName(args.script) return { card: 'generic', - title: name !== undefined ? `workflow: ${name}` : 'workflow', + title: `workflow: ${args.meta.name}`, rawInput: args.script, } } @@ -139,7 +135,29 @@ export function apply(ctx: Context, config: Config): void { script: { type: 'string', required: true, - description: 'The complete workflow script: `export const meta = {...}` followed by the plain-JS body (top-level await allowed; end with `return `).', + description: 'The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `).', + }, + meta: { + type: 'object', + required: true, + description: 'The workflow identity block (plain JSON — never code).', + properties: { + name: { type: 'string', required: true, description: 'Short kebab-case workflow name.' }, + description: { type: 'string', required: true, description: 'One-line description of what the workflow does.' }, + whenToUse: { type: 'string', description: 'Optional guidance on when this workflow applies.' }, + phases: { + type: 'array', + description: 'Optional phase declarations matched by phase() calls.', + items: { + type: 'object', + properties: { + title: { type: 'string', required: true, description: 'The phase title phase() calls match by exact string.' }, + detail: { type: 'string', description: 'Optional one-line description of the phase.' }, + model: { type: 'string', description: 'Optional model override this phase is expected to use.' }, + }, + }, + }, + }, }, args: { type: 'object', @@ -155,11 +173,12 @@ export function apply(ctx: Context, config: Config): void { throw new Error('workflow tool requires a calling agent (exec.agent was undefined)') } - // Parse failures (SCRIPT_PARSE/META_INVALID) throw synchronously here - // and become isError results via the registry — the model sees the - // violation list and can correct the script. + // Meta/body validation failures (META_INVALID/SCRIPT_PARSE) throw + // synchronously here and become isError results via the registry — the + // model sees the violation list and can correct the call. const run: WorkflowRun = ctx.workflows.start({ script: args.script, + meta: args.meta, ...args.args !== undefined ? { args: args.args } : {}, parent, ...exec.signal ? { signal: exec.signal } : {}, diff --git a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts index dafc39bf46..0585889617 100644 --- a/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts +++ b/packages/workflow/tool-workflow/tests/tool-workflow.spec.ts @@ -55,7 +55,8 @@ async function setup(config?: { toolName?: string; maxResultChars?: number }) { return { ctx, engine, parent } } -const SCRIPT = "export const meta = { name: 'audit', description: 'd' }\nreturn 1" +const SCRIPT = 'return 1' +const META = { name: 'audit', description: 'd' } function execute(ctx: Context, args: unknown, extra?: { agent?: Agent; signal?: AbortSignal }): Promise { return ctx.tools.execute({ @@ -71,9 +72,9 @@ describe('dsh-tool-workflow', () => { it('starts a run with the script/args/parent/signal and renders the completed value', async () => { const { ctx, engine, parent } = await setup() const controller = new AbortController() - const pending = execute(ctx, { script: SCRIPT, args: { files: ['a.ts'] } }, { agent: parent, signal: controller.signal }) + const pending = execute(ctx, { script: SCRIPT, meta: META, args: { files: ['a.ts'] } }, { agent: parent, signal: controller.signal }) await vi.waitFor(() => { expect(engine.requests.length).toBe(1) }) - expect(engine.requests[0]).toMatchObject({ script: SCRIPT, args: { files: ['a.ts'] }, parent }) + expect(engine.requests[0]).toMatchObject({ script: SCRIPT, meta: META, args: { files: ['a.ts'] }, parent }) expect(engine.requests[0]!.signal).toBe(controller.signal) engine.settle({ value: { findings: [1, 2] }, stopReason: 'completed', agentsStarted: 7 }) const result = await pending @@ -86,7 +87,7 @@ describe('dsh-tool-workflow', () => { it('maps a non-completed stop reason to an isError result (and still disposes)', async () => { const { ctx, engine, parent } = await setup() - const pending = execute(ctx, { script: SCRIPT }, { agent: parent }) + const pending = execute(ctx, { script: SCRIPT, meta: META }, { agent: parent }) await vi.waitFor(() => { expect(engine.requests.length).toBe(1) }) engine.settle({ value: null, stopReason: 'error', error: 'script threw: boom', agentsStarted: 2 }) const result = await pending @@ -97,14 +98,14 @@ describe('dsh-tool-workflow', () => { it('reports a cancelled run distinctly (with and without a reason)', async () => { const { ctx, engine, parent } = await setup() - const pending = execute(ctx, { script: SCRIPT }, { agent: parent }) + const pending = execute(ctx, { script: SCRIPT, meta: META }, { agent: parent }) await vi.waitFor(() => { expect(engine.requests.length).toBe(1) }) engine.settle({ value: null, stopReason: 'cancelled', error: 'user', agentsStarted: 0 }) const result = await pending expect(result.isError).toBe(true) expect((result.content[0] as { text: string }).text).toContain('workflow run was cancelled (user)') - const bare = execute(ctx, { script: SCRIPT }, { agent: parent }) + const bare = execute(ctx, { script: SCRIPT, meta: META }, { agent: parent }) await vi.waitFor(() => { expect(engine.requests.length).toBe(2) }) engine.settle({ value: null, stopReason: 'cancelled', agentsStarted: 0 }) expect(((await bare).content[0] as { text: string }).text.trim().endsWith('cancelled')).toBe(true) @@ -112,7 +113,7 @@ describe('dsh-tool-workflow', () => { it('an error result without a message renders the unknown-error fallback', async () => { const { ctx, engine, parent } = await setup() - const pending = execute(ctx, { script: SCRIPT }, { agent: parent }) + const pending = execute(ctx, { script: SCRIPT, meta: META }, { agent: parent }) await vi.waitFor(() => { expect(engine.requests.length).toBe(1) }) engine.settle({ value: null, stopReason: 'error', agentsStarted: 0 }) expect(((await pending).content[0] as { text: string }).text).toContain('unknown error') @@ -121,7 +122,7 @@ describe('dsh-tool-workflow', () => { it('cancels the run when exec.signal aborts MID-FLIGHT (the abort bridge)', async () => { const { ctx, engine, parent } = await setup() const controller = new AbortController() - const pending = execute(ctx, { script: SCRIPT }, { agent: parent, signal: controller.signal }) + const pending = execute(ctx, { script: SCRIPT, meta: META }, { agent: parent, signal: controller.signal }) await vi.waitFor(() => { expect(engine.requests.length).toBe(1) }) controller.abort() const result = await pending @@ -130,17 +131,17 @@ describe('dsh-tool-workflow', () => { expect(engine.disposed).toBe(1) }) - it('a synchronous engine start throw (parse/meta failure) becomes an isError result', async () => { + it('a synchronous engine start throw (meta/parse failure) becomes an isError result', async () => { const { ctx, engine, parent } = await setup() - engine.startError = new Error('script must begin with `export const meta = {...}`') - const result = await execute(ctx, { script: 'nope' }, { agent: parent }) + engine.startError = new Error('invalid meta: meta.name must be a non-empty string') + const result = await execute(ctx, { script: 'nope', meta: { name: '', description: 'd' } }, { agent: parent }) expect(result.isError).toBe(true) - expect((result.content[0] as { text: string }).text).toContain('must begin with') + expect((result.content[0] as { text: string }).text).toContain('meta.name must be a non-empty string') }) it('requires a calling agent (fails loud without exec.agent)', async () => { const { ctx, engine } = await setup() - const result = await execute(ctx, { script: SCRIPT }) + const result = await execute(ctx, { script: SCRIPT, meta: META }) expect(result.isError).toBe(true) expect((result.content[0] as { text: string }).text).toContain('requires a calling agent') expect(engine.requests.length).toBe(0) @@ -157,7 +158,7 @@ describe('dsh-tool-workflow', () => { const { ctx, engine, parent } = await setup() const controller = new AbortController() controller.abort() - const result = await execute(ctx, { script: SCRIPT }, { agent: parent, signal: controller.signal }) + const result = await execute(ctx, { script: SCRIPT, meta: META }, { agent: parent, signal: controller.signal }) expect(result.isError).toBe(true) expect(engine.cancels).toContain('parent step aborted') expect(engine.disposed).toBe(1) @@ -165,7 +166,7 @@ describe('dsh-tool-workflow', () => { it('truncates an oversized rendered value with a notice (maxResultChars)', async () => { const { ctx, engine, parent } = await setup({ maxResultChars: 40 }) - const pending = execute(ctx, { script: SCRIPT }, { agent: parent }) + const pending = execute(ctx, { script: SCRIPT, meta: META }, { agent: parent }) await vi.waitFor(() => { expect(engine.requests.length).toBe(1) }) engine.settle({ value: { blob: 'x'.repeat(500) }, stopReason: 'completed', agentsStarted: 1 }) const rendered = ((await pending).content[0] as { text: string }).text @@ -193,22 +194,22 @@ describe('dsh-tool-workflow', () => { expect((await ctx.systemPrompt.assemble()).sections.some(s => s.name === 'tool:orchestrate')).toBe(false) }) - it('presents a generic pending card titled by the sniffed meta name, with the script as rawInput', async () => { + it('presents a generic pending card titled by the meta name, with the script as rawInput', async () => { const { ctx } = await setup() const tool = ctx.tools.get('workflow')! - const view = tool.presentCall!({ script: SCRIPT }) + const view = tool.presentCall!({ script: SCRIPT, meta: META }) expect(view).toMatchObject({ card: 'generic', title: 'workflow: audit', rawInput: SCRIPT }) - const anonymous = tool.presentCall!({ script: 'export const meta = {}\nreturn 1' }) - expect(anonymous).toMatchObject({ card: 'generic', title: 'workflow' }) }) it('presentResult keeps the generic card; presentation is pure and replay-safe on malformed args', async () => { const { ctx } = await setup() const tool = ctx.tools.get('workflow')! - expect(tool.presentResult!({ script: SCRIPT }, { content: [], isError: false })).toEqual({ card: 'generic' }) + expect(tool.presentResult!({ script: SCRIPT, meta: META }, { content: [], isError: false })).toEqual({ card: 'generic' }) // defineTool soft-validates presentation args: a malformed logged shape - // falls back to undefined instead of throwing mid-replay. + // (wrong fields entirely, or a call missing its meta) falls back to + // undefined instead of throwing mid-replay. expect(tool.presentCall!({ not: 'the schema' })).toBeUndefined() + expect(tool.presentCall!({ script: SCRIPT })).toBeUndefined() }) it('has the namespace-plugin export shape (no stray default)', () => { @@ -239,7 +240,8 @@ describe('dsh-tool-workflow', () => { const parent = { id: AgentId('caller'), options: {} } as unknown as Agent const controller = new AbortController() const pending = execute(ctx, { - script: "export const meta = { name: 'stuck', description: 'parks forever' }\nawait new Promise(() => {})\nreturn 1", + script: 'await new Promise(() => {})\nreturn 1', + meta: { name: 'stuck', description: 'parks forever' }, }, { agent: parent, signal: controller.signal }) // Give the run a beat to start (past its synchronous slice), then abort. await new Promise(resolve => setTimeout(resolve, 20)) diff --git a/packages/workflow/workflow-workerthread/README.md b/packages/workflow/workflow-workerthread/README.md index 0e763bdee9..25c79ad09c 100644 --- a/packages/workflow/workflow-workerthread/README.md +++ b/packages/workflow/workflow-workerthread/README.md @@ -14,19 +14,19 @@ What the seam guarantees regardless, because benign scripts hit these constantly ## The script contract it executes -- **Meta extraction** (`extractMeta`, host-side): a string/comment-aware brace scanner finds the leading `export const meta` literal (template interpolation rejected — the literal must be pure), evaluates it ALONE in an empty timed vm context, materializes the result to plain JSON data, validates the shape (`name`/`description` required; unknown fields rejected loud), and blanks the statement line-preservingly so error stacks keep the script's own line numbers. +- **Meta as DATA** (`validateMeta`, host-side): the workflow's identity arrives on the start request as plain JSON (the tool carries it as its schema-validated `meta` parameter — never as script text) and is shape-validated loud, every violation named (`name`/`description` required; unknown fields rejected). The engine deliberately evaluates NO script text to obtain meta: an evaluated meta literal could smuggle getters that run on the host outside any vm timeout — the exact spin the worker thread exists to isolate. A body that still opens with a Claude Code-style `export const meta` statement is rejected with a pointed `SCRIPT_PARSE` message. - **Hooks**: `agent(prompt, {label, phase, schema, model})` (schema = the [structured-output subset](../../core/tools/README.md), forwarded as `outputSchema`; result = validated object, or final text without a schema; a failed child resolves `null`), `parallel(thunks)`, `pipeline(items, ...stages)` with NO cross-stage barrier and `(prev, item, index)` stage callbacks, `phase(title)`, `log(message)`, and the `args` global. Anything else — `effort`/`isolation`/`agentType`, unknown options, malformed arguments, schemas outside the subset — throws a FATAL `WorkflowError` that `parallel`/`pipeline` re-throw rather than nulling (see the seam README's failure discipline). - **No ambient APIs**: no timers, filesystem, or Node APIs are injected into the context (absence is API surface, not containment — see the trust premise). ## How a run executes -`start()` extracts and validates the meta HOST-side and parse-checks the body with the identical wrapper the worker compiles (`new vm.Script`, discarded), preserving the seam's synchronous `SCRIPT_PARSE`/`META_INVALID` throws; one redundant parse per run is the deliberate price. It then spawns the worker (`src/worker.ts` unbuilt via an explicit tsx `execArgv`; the sibling `lib/worker.js` bundle when built) with the meta, blanked body, `args`, and worker-side limits as `workerData`. +`start()` shape-validates the meta DATA host-side and parse-checks the body with the identical wrapper the worker compiles (`new vm.Script`, discarded), preserving the seam's synchronous `META_INVALID`/`SCRIPT_PARSE` throws; one redundant parse per run is the deliberate price. It then spawns the worker (`src/worker.ts` unbuilt via an explicit tsx `execArgv`; the sibling `lib/worker.js` bundle when built) with the meta, body, `args`, and worker-side limits as `workerData`. Inside the worker, `runWorkerSession` builds the execution core (hooks, combinators, concurrency semaphore, caps, fatal-error discipline) over a **child port**: `agent()` sends `child-start` and the host starts the child on `ctx.subagents` (parent attribution, the shared per-run abort signal, `outputSchema`/`model` pass-through), replying with the child id, its settlement (a JSON projection; an infrastructure REJECTION crosses as `child-failed` and stays the fatal `AGENT_RESULT`), and dispose acks. Observer narration (`phase`/`log`/`agent-start`/`agent-end`) crosses as messages and re-emits as the seam's `workflow/*` events. A **ready→go handshake** gates the body: a cancellation racing worker boot arrives before `go`, so a run cancelled before start never executes the body at all. ## The value boundary -Values LEAVING the script (the meta literal, hook options/schemas, the script's return) are materialized by `materializeFromRealm`: a plain recursive walk that rejects loud everything JSON cannot carry (exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`), copying into plain containers via `defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Getters are read ordinarily — the RESULT is what crosses; a read that throws fails loud. Values ENTERING the realm (`args`, `agent()` results, hook promises and their failures, combinator arrays) are handed over directly as worker-realm values — the script is trusted, so outer prototypes are not a leak; `args` is cloned once at start so a script scribbling on it cannot mutate the caller's object. One script-visible consequence: an error thrown by a hook is built OUTSIDE the script's vm context, so `e instanceof Error` inside the script is `false` — branch on `e.name`/`e.code` instead (the combinators recognize fatality by `instanceof` against their own realm's class, which a script-built object can never pass, so fatal-vs-null cannot be forged or dissolved). +Values LEAVING the script (hook options/schemas, the script's return) are materialized by `materializeFromRealm`: a plain recursive walk that rejects loud everything JSON cannot carry (exotic prototypes, functions, symbols, cycles, sparse arrays, non-finite numbers, nested `undefined`), copying into plain containers via `defineProperty` so a `"__proto__"` key becomes a data property, never a prototype mutation. Getters are read ordinarily — the RESULT is what crosses; a read that throws fails loud; both run in the WORKER, never on the host. Values ENTERING the realm (`args`, `agent()` results, hook promises and their failures, combinator arrays) are handed over directly as worker-realm values — the script is trusted, so outer prototypes are not a leak; `args` is cloned once at start so a script scribbling on it cannot mutate the caller's object. One script-visible consequence: an error thrown by a hook is built OUTSIDE the script's vm context, so `e instanceof Error` inside the script is `false` — branch on `e.name`/`e.code` instead (the combinators recognize fatality by `instanceof` against their own realm's class, which a script-built object can never pass, so fatal-vs-null cannot be forged or dissolved). ## Cancellation, death, disposal @@ -44,5 +44,5 @@ A worker that dies unexpectedly (an OOM, a script reaching `process.exit` throug | `maxConcurrentAgents` | `0` (auto) | Concurrent `agent()` ceiling; `0` resolves to `min(16, max(1, cores - 2))`. | | `maxTotalAgents` | `1000` | Total `agent()` calls one run may start (runaway-loop backstop). | | `maxItemsPerCall` | `4096` | Items accepted by one `parallel()`/`pipeline()` call. | -| `syncTimeoutMs` | `5000` | vm timeout for the initial synchronous slice (in the worker) and the host-side meta evaluation. | +| `syncTimeoutMs` | `5000` | vm timeout for the script's initial synchronous slice (in the worker). | | `disposeGraceMs` | `5000` | How long a cancelled run may stay unsettled before force-settle + terminate; also bounds `dispose()`. | diff --git a/packages/workflow/workflow-workerthread/src/index.ts b/packages/workflow/workflow-workerthread/src/index.ts index 538252d90a..e0b8caf3fb 100644 --- a/packages/workflow/workflow-workerthread/src/index.ts +++ b/packages/workflow/workflow-workerthread/src/index.ts @@ -47,10 +47,10 @@ import z from 'schemastery' import WorkflowService, { WorkflowError, WorkflowRunId } from '@deepseek-ai/dsh-workflow' import type { WorkflowRun, WorkflowRunInfo, WorkflowStartRequest } from '@deepseek-ai/dsh-workflow' import { WorkerRun } from './host.ts' -import { extractMeta } from './meta.ts' +import { validateMeta } from './meta.ts' import type { WorkerInit, WorkerLimits } from './types.ts' -export { extractMeta, type ExtractedScript } from './meta.ts' +export { validateMeta } from './meta.ts' export { HostToWorkerType, WorkerToHostType } from './protocol.ts' export type { HostToWorkerMessage, HostToWorkerPayloads, WorkerToHostMessage, WorkerToHostPayloads } from './protocol.ts' export { materializeFromRealm, MaterializeError } from './realm.ts' @@ -75,7 +75,7 @@ export interface Config { maxTotalAgents?: number /** Items accepted by a single `parallel()`/`pipeline()` call (default 4096). */ maxItemsPerCall?: number - /** vm timeout for the initial synchronous slice (inside the worker) AND the host-side meta evaluation (default 5000 ms). */ + /** vm timeout for the script's initial synchronous slice, inside the worker (default 5000 ms). */ syncTimeoutMs?: number /** * How long after a cancellation an unsettled script may keep running before @@ -87,13 +87,21 @@ export interface Config { type ResolvedConfig = Required +/** A body that still carries the Claude Code-style meta header (meta rides the seam as data here). */ +const META_STATEMENT = /^\s*export\s+const\s+meta\b/ + /** * Parse-check the body with the SAME wrapper the worker-side runtime * compiles, so `start()` keeps the seam's synchronous `SCRIPT_PARSE` throw * (the worker's own compile happens a thread away, after `start()` returned). - * One redundant parse per run, bought deliberately for the contract. + * One redundant parse per run, bought deliberately for the contract. A body + * opening with `export const meta` gets a pointed message instead of the + * wrapper's bare SyntaxError — the model's likeliest authoring slip. */ function assertBodyParses(body: string, name: string): void { + if (META_STATEMENT.test(body)) { + throw new WorkflowError('workflow meta rides the `meta` request field, not the script: remove the `export const meta = {...}` statement from the body', 'SCRIPT_PARSE') + } try { // Parse only — the script object is discarded, nothing executes. void new vm.Script(`(async () => {\n${body}\n})()`, { filename: `workflow:${name}`, lineOffset: -1 }) @@ -130,17 +138,18 @@ export class WorkerWorkflowEngine extends WorkflowService { } /** - * Parse and execute a workflow script in a fresh worker thread. Throws - * {@link WorkflowError} synchronously (`SCRIPT_PARSE`/`META_INVALID`) for a - * script that cannot begin; once a run is returned, every failure resolves - * through `result.stopReason` instead. - * @param request - the script, its `args`, the parent agent, and an - * optional cancel signal. + * Validate and execute a workflow script in a fresh worker thread. Throws + * {@link WorkflowError} synchronously (`META_INVALID` for a malformed meta + * block, `SCRIPT_PARSE` for a body that does not compile) for a request + * that cannot begin; once a run is returned, every failure resolves through + * `result.stopReason` instead. + * @param request - the script body, its meta data and `args`, the parent + * agent, and an optional cancel signal. * @returns the live run (its `result` resolves when the script settles). */ start(request: WorkflowStartRequest): WorkflowRun { - const { meta, body } = extractMeta(request.script, this.config.syncTimeoutMs) - assertBodyParses(body, meta.name) + const meta = validateMeta(request.meta) + assertBodyParses(request.script, meta.name) const id = WorkflowRunId(randomUUID()) // The event payloads and the run handle get SEPARATE meta clones: a // listener mutating its snapshot must not corrupt the holder's view. @@ -155,7 +164,7 @@ export class WorkerWorkflowEngine extends WorkflowService { } const init: WorkerInit = { meta, - body, + body: request.script, ...request.args !== undefined ? { args: request.args } : {}, limits, } diff --git a/packages/workflow/workflow-workerthread/src/meta.ts b/packages/workflow/workflow-workerthread/src/meta.ts index e818bc6f00..848a4fc9b1 100644 --- a/packages/workflow/workflow-workerthread/src/meta.ts +++ b/packages/workflow/workflow-workerthread/src/meta.ts @@ -1,100 +1,24 @@ /** - * Meta-block extraction: turn a Claude Code-format workflow script — - * `export const meta = {...}` followed by a plain-JS body — into a validated - * {@link WorkflowMeta} plus the body with the meta statement blanked - * line-preservingly (error stacks keep the script's own line numbers). - * - * The scanner is a small string/comment-aware brace matcher, not a JS parser: - * it only has to find the END of the meta object literal, and the literal is - * contractually PURE (no interpolation, no computed values). Template strings - * are tolerated as plain quotes but `${` inside one is rejected up front — - * interpolation is where "literal" stops being checkable by evaluation. The - * extracted text is then evaluated ALONE in an empty, timed vm context (a - * non-literal reference throws there; an expression can still RUN, so the - * result — not the source — is the contract: it must materialize to plain - * JSON data and pass the shape validation). + * Meta validation: check the caller-provided {@link WorkflowMeta} DATA against + * the shape contract and reject everything else loud, every violation named. + * Meta arrives as plain JSON through the seam (the model-facing tool carries + * it as a schema-validated object parameter) — the engine never evaluates + * script text to obtain it, so no script-controlled code can run on the host + * here (an evaluated meta literal could smuggle getters that spin the host + * outside any vm timeout, the exact escape the worker thread exists to + * prevent). * * @module @deepseek-ai/dsh-workflow-workerthread/meta */ -import * as vm from 'node:vm' import { WorkflowError } from '@deepseek-ai/dsh-workflow' import type { WorkflowMeta, WorkflowPhase } from '@deepseek-ai/dsh-workflow' -import { materializeFromRealm, MaterializeError, renderThrown } from './realm.ts' -/** The result of {@link extractMeta}: the validated meta and the runnable body. */ -export interface ExtractedScript { - meta: WorkflowMeta - /** The script with the meta statement blanked (newlines preserved). */ - body: string -} - -/** - * Scan `source` from `start` (an opening `{`) to its matching `}`, aware of - * string literals (`'`/`"`/backtick, with escapes) and comments. Returns the - * index AFTER the closing brace. Throws `SCRIPT_PARSE` on template - * interpolation (`${` inside a backtick string) or an unterminated literal. - */ -function scanObjectLiteral(source: string, start: number): number { - let depth = 0 - let index = start - while (index < source.length) { - const ch = source.charAt(index) - if (ch === '/' && source[index + 1] === '/') { - const end = source.indexOf('\n', index) - index = end === -1 ? source.length : end + 1 - continue - } - if (ch === '/' && source[index + 1] === '*') { - const end = source.indexOf('*/', index + 2) - if (end === -1) throw new WorkflowError('meta block has an unterminated comment', 'SCRIPT_PARSE') - index = end + 2 - continue - } - if (ch === '\'' || ch === '"' || ch === '`') { - index = scanString(source, index, ch) - continue - } - if (ch === '{' || ch === '[') depth += 1 - if (ch === '}' || ch === ']') { - depth -= 1 - if (depth === 0) return index + 1 - } - index += 1 - } - throw new WorkflowError('meta block is not a balanced object literal', 'SCRIPT_PARSE') -} - -/** Scan past one string literal starting at `start` (the quote char); returns the index after the closing quote. */ -function scanString(source: string, start: number, quote: string): number { - let index = start + 1 - while (index < source.length) { - const ch = source.charAt(index) - if (ch === '\\') { - index += 2 - continue - } - if (quote === '`' && ch === '$' && source[index + 1] === '{') { - throw new WorkflowError('template interpolation (`${...}`) is not allowed in the meta block — meta must be a pure literal', 'SCRIPT_PARSE') - } - if (ch === quote) return index + 1 - index += 1 - } - throw new WorkflowError('meta block has an unterminated string literal', 'SCRIPT_PARSE') -} - -/** Replace `[from, to)` of `source` with whitespace, preserving every newline (line numbers survive). */ -function blankSpan(source: string, from: number, to: number): string { - const blanked = source.slice(from, to).replace(/[^\n]/g, ' ') - return source.slice(0, from) + blanked + source.slice(to) -} - -/** Collect shape violations for an evaluated meta value (already materialized to host JSON data). */ +/** Collect shape violations for a meta value (plain JSON data by the seam contract). */ function validateMetaShape(meta: unknown): { meta?: WorkflowMeta; violations: string[] } { const violations: string[] = [] - /* v8 ignore next 3 -- defensive: the scanner only extracts a brace-delimited literal, which always evaluates to a plain object */ if (typeof meta !== 'object' || meta === null || Array.isArray(meta)) { - return { violations: ['meta must be an object literal'] } + return { violations: ['meta must be an object'] } } const record = meta as Record const known = new Set(['name', 'description', 'whenToUse', 'phases']) @@ -143,97 +67,19 @@ function validateMetaShape(meta: unknown): { meta?: WorkflowMeta; violations: st } } -/** `export const meta =`, anchored AFTER {@link skipLeadingTrivia} — its quantifiers cannot backtrack ambiguously. */ -const META_HEAD = /^export\s+const\s+meta\s*=\s*/ - /** - * Index just past the leading trivia: whitespace and `//` / `/*`-style - * comments. A hand-rolled character scan, NOT a prefix regex — an - * all-alternation prefix (`\s*(?:comment|\s+)*`) partitions a whitespace run - * ambiguously and backtracks EXPONENTIALLY when the match ultimately fails, - * so a near-miss script (a comment header, then a forgotten `export`) would - * spin the host synchronously inside `start()`, where no vm timeout applies. - * The near-miss must fail fast into `SCRIPT_PARSE` instead — that error is - * the model's retry signal. + * Validate a caller-provided meta value against the {@link WorkflowMeta} + * contract. Throws `META_INVALID` naming every violation (unknown fields, + * missing/mistyped `name`/`description`, malformed `phases`); the returned + * meta is a NORMALIZED copy built from the validated fields, so the engine + * never aliases the caller's object. + * @param value - the meta data from the start request (plain JSON by the seam contract). + * @returns the validated, normalized meta block. */ -function skipLeadingTrivia(source: string): number { - let index = 0 - while (index < source.length) { - const ch = source.charAt(index) - if (/\s/.test(ch)) { - index += 1 - continue - } - if (ch === '/' && source[index + 1] === '/') { - const end = source.indexOf('\n', index) - if (end === -1) return source.length - index = end + 1 - continue - } - if (ch === '/' && source[index + 1] === '*') { - const end = source.indexOf('*/', index + 2) - if (end === -1) throw new WorkflowError('script has an unterminated comment before the meta block', 'SCRIPT_PARSE') - index = end + 2 - continue - } - break - } - return index -} - -/** - * Extract and validate the leading `export const meta = {...}` statement. - * Throws {@link WorkflowError} — `SCRIPT_PARSE` when the statement is missing - * or unscannable, `META_INVALID` when the literal evaluates to something - * outside the meta contract (non-JSON data, wrong shape, unknown fields). - * @param script - the full script text. - * @param evalTimeoutMs - the vm timeout for evaluating the extracted literal. - * @returns the validated meta and the line-preservingly blanked body. - */ -export function extractMeta(script: string, evalTimeoutMs: number): ExtractedScript { - const triviaEnd = skipLeadingTrivia(script) - const match = META_HEAD.exec(script.slice(triviaEnd)) - if (!match) { - throw new WorkflowError('script must begin with `export const meta = {...}` (leading comments allowed)', 'SCRIPT_PARSE') - } - const literalStart = triviaEnd + match[0].length - if (script[literalStart] !== '{') { - throw new WorkflowError('`export const meta =` must be followed by an object literal', 'SCRIPT_PARSE') - } - const literalEnd = scanObjectLiteral(script, literalStart) - const literal = script.slice(literalStart, literalEnd) - - let evaluated: unknown - try { - // An EMPTY context: any non-literal reference (a variable, a call) throws - // here. The result — data only — is what the contract checks; a getter or - // IIFE can still run, which is why the timeout and the materialization - // below are part of the same boundary. - evaluated = vm.runInNewContext(`(${literal})`, undefined, { timeout: evalTimeoutMs }) - } catch (error: unknown) { - throw new WorkflowError( - `meta block failed to evaluate as a pure literal: ${renderThrown(error)}`, - 'META_INVALID', - { cause: error }, - ) - } - let data: unknown - try { - data = materializeFromRealm(evaluated, 'meta') - } catch (error: unknown) { - /* v8 ignore next -- defensive rethrow arm: materializeFromRealm only throws MaterializeError */ - if (!(error instanceof MaterializeError)) throw error - throw new WorkflowError(`meta block is not pure JSON data — ${error.message}`, 'META_INVALID', { cause: error }) - } - const { meta, violations } = validateMetaShape(data) +export function validateMeta(value: unknown): WorkflowMeta { + const { meta, violations } = validateMetaShape(value) if (meta === undefined) { - throw new WorkflowError(`invalid meta block: ${violations.join('; ')}`, 'META_INVALID') + throw new WorkflowError(`invalid meta: ${violations.join('; ')}`, 'META_INVALID') } - - // Blank the whole statement (including a trailing semicolon, if any) so the - // body compiles standalone with its original line numbers. - let statementEnd = literalEnd - while (statementEnd < script.length && (script[statementEnd] === ' ' || script[statementEnd] === '\t')) statementEnd += 1 - if (script[statementEnd] === ';') statementEnd += 1 - return { meta, body: blankSpan(script, 0, statementEnd) } + return meta } diff --git a/packages/workflow/workflow-workerthread/src/runtime.ts b/packages/workflow/workflow-workerthread/src/runtime.ts index 28450977c3..645a61b6c4 100644 --- a/packages/workflow/workflow-workerthread/src/runtime.ts +++ b/packages/workflow/workflow-workerthread/src/runtime.ts @@ -109,7 +109,7 @@ export class WorkflowExecution { // wrapper, so under one Node version this throw is unreachable in // production — the session still maps it to an error result defensively. // lineOffset compensates for the wrapper line, so stack traces carry the - // script's own line numbers (the meta statement was blanked, not removed). + // script's own line numbers. try { this.compiled = new vm.Script(`(async () => {\n${body}\n})()`, { filename: `workflow:${meta.name}`, diff --git a/packages/workflow/workflow-workerthread/src/types.ts b/packages/workflow/workflow-workerthread/src/types.ts index 329523ffc8..a80b126a2d 100644 --- a/packages/workflow/workflow-workerthread/src/types.ts +++ b/packages/workflow/workflow-workerthread/src/types.ts @@ -30,9 +30,9 @@ export interface WorkerLimits { /** The `workerData` payload one run is initialized with (host → worker, once, at spawn). */ export interface WorkerInit { - /** The validated meta block (extracted host-side). */ + /** The validated meta block (plain data off the start request, validated host-side). */ meta: WorkflowMeta - /** The script body with the meta statement blanked (host-side `extractMeta`). */ + /** The plain-JS script body, exactly as the start request carried it. */ body: string /** The run's `args` value; the workerData structured clone is the copy that isolates the caller. */ args?: unknown diff --git a/packages/workflow/workflow-workerthread/tests/built-worker.e2e.ts b/packages/workflow/workflow-workerthread/tests/built-worker.e2e.ts index d541b4c0ff..545be831f6 100644 --- a/packages/workflow/workflow-workerthread/tests/built-worker.e2e.ts +++ b/packages/workflow/workflow-workerthread/tests/built-worker.e2e.ts @@ -34,7 +34,8 @@ const ctx = new Context() await ctx.plugin(SubagentService) await ctx.plugin(WorkerWorkflowEngine, {}) const run = ctx.workflows.start({ - script: "export const meta = { name: 'built-smoke', description: 'built worker smoke' }\\nreturn 6 * 7", + script: 'return 6 * 7', + meta: { name: 'built-smoke', description: 'built worker smoke' }, // A zero-agent script never touches the provider, so a bare id suffices. parent: { id: 'built-smoke-parent', options: {} }, }) diff --git a/packages/workflow/workflow-workerthread/tests/integration.spec.ts b/packages/workflow/workflow-workerthread/tests/integration.spec.ts index ae58a536f8..d6e8237804 100644 --- a/packages/workflow/workflow-workerthread/tests/integration.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/integration.spec.ts @@ -50,8 +50,8 @@ describe('dsh-workflow-workerthread over the real in-process stack', () => { const childIds: string[] = [] ctx.on('workflow/agent-start', (_info, agent) => { childIds.push(agent.childId) }) const run = ctx.workflows.start({ - script: `export const meta = { name: 'integration', description: 'plain + structured children' } -phase('Read') + meta: { name: 'integration', description: 'plain + structured children' }, + script: `phase('Read') const prose = await agent('read the repo') phase('Judge') const judged = await agent('judge: ' + prose, { @@ -78,8 +78,8 @@ return { prose, verdict: judged.verdict, confidence: judged.confidence }`, textResponse('still prose after the nudge'), ]) const run = ctx.workflows.start({ - script: `export const meta = { name: 'null-path', description: 'schema failure maps to null' } -const judged = await agent('judge it', { schema: { type: 'object', properties: { v: { type: 'string' } } } }) + meta: { name: 'null-path', description: 'schema failure maps to null' }, + script: `const judged = await agent('judge it', { schema: { type: 'object', properties: { v: { type: 'string' } } } }) return { got: judged === null ? 'null' : 'value' }`, parent, }) diff --git a/packages/workflow/workflow-workerthread/tests/meta.spec.ts b/packages/workflow/workflow-workerthread/tests/meta.spec.ts index a1c622e3fc..37b86440be 100644 --- a/packages/workflow/workflow-workerthread/tests/meta.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/meta.spec.ts @@ -1,182 +1,88 @@ import { describe, expect, it } from 'vitest' import { WorkflowError } from '@deepseek-ai/dsh-workflow' -import { extractMeta } from '../src/meta.ts' +import { validateMeta } from '../src/meta.ts' -const TIMEOUT = 1000 - -/** Extract and expect success. */ -function ok(script: string) { - return extractMeta(script, TIMEOUT) -} - -/** The WorkflowError a bad script produces (throws if it extracts cleanly). */ -function bad(script: string): WorkflowError { +/** Assert a META_INVALID throw whose message matches every given fragment. */ +function expectInvalid(value: unknown, ...fragments: string[]): void { + let thrown: unknown try { - extractMeta(script, TIMEOUT) + validateMeta(value) } catch (error: unknown) { - if (error instanceof WorkflowError) return error - throw error + thrown = error + } + expect(thrown).toBeInstanceOf(WorkflowError) + expect((thrown as WorkflowError).code).toBe('META_INVALID') + for (const fragment of fragments) { + expect((thrown as WorkflowError).message).toContain(fragment) } - throw new Error('expected extraction to fail') } -describe('extractMeta', () => { - it('extracts a full meta block and blanks the statement line-preservingly', () => { - const script = `export const meta = { - name: 'audit-routes', - description: 'Audit every route', - whenToUse: 'when auditing', - phases: [{ title: 'Scan', detail: 'find files' }, { title: 'Fix', model: 'deepseek-v4-pro' }], -} -const x = 1 -return x` - const { meta, body } = ok(script) - expect(meta).toEqual({ - name: 'audit-routes', - description: 'Audit every route', - whenToUse: 'when auditing', - phases: [{ title: 'Scan', detail: 'find files' }, { title: 'Fix', model: 'deepseek-v4-pro' }], +describe('validateMeta', () => { + it('accepts a minimal meta and returns a normalized copy (no aliasing of the input)', () => { + const input = { name: 'audit', description: 'audit the repo' } + const meta = validateMeta(input) + expect(meta).toEqual({ name: 'audit', description: 'audit the repo' }) + expect(meta).not.toBe(input) + input.name = 'mutated' + expect(meta.name).toBe('audit') + }) + + it('accepts the full shape and rebuilds phases entry by entry', () => { + const meta = validateMeta({ + name: 'migrate', + description: 'migrate call sites', + whenToUse: 'large mechanical sweeps', + phases: [ + { title: 'Discover' }, + { title: 'Transform', detail: 'one agent per file', model: 'deepseek-v4-pro' }, + ], + }) + expect(meta).toEqual({ + name: 'migrate', + description: 'migrate call sites', + whenToUse: 'large mechanical sweeps', + phases: [ + { title: 'Discover' }, + { title: 'Transform', detail: 'one agent per file', model: 'deepseek-v4-pro' }, + ], }) - // Same line count; the statement's characters blanked; the body intact. - expect(body.split('\n').length).toBe(script.split('\n').length) - expect(body.split('\n')[6]).toBe('const x = 1') - expect(body).not.toContain('export') }) - it('allows leading line and block comments before the meta statement', () => { - const script = `// a workflow -/* multi - line */ -export const meta = { name: 'x', description: 'y' } -return 1` - expect(ok(script).meta.name).toBe('x') + it('rejects non-object values loud', () => { + expectInvalid(undefined, 'meta must be an object') + expectInvalid('a string', 'meta must be an object') + expectInvalid(null, 'meta must be an object') + expectInvalid([{ name: 'x', description: 'd' }], 'meta must be an object') }) - it('handles braces inside strings and comments while scanning', () => { - const script = `export const meta = { - name: 'tricky', // } not a close { - /* } also not } */ - description: "has { braces } and 'quotes'", -} -return 2` - expect(ok(script).meta.description).toBe("has { braces } and 'quotes'") + it('rejects unknown fields by name (accepted-then-ignored is banned)', () => { + expectInvalid({ name: 'x', description: 'd', color: 'red' }, 'meta.color is not a recognized field') }) - it('tolerates template-quoted strings WITHOUT interpolation, escapes included', () => { - const script = 'export const meta = { name: `plain`, description: `esc \\` tick` }\nreturn 1' - expect(ok(script).meta.name).toBe('plain') + it('rejects missing or mistyped name/description/whenToUse', () => { + expectInvalid({ description: 'd' }, 'meta.name must be a non-empty string') + expectInvalid({ name: '', description: 'd' }, 'meta.name must be a non-empty string') + expectInvalid({ name: 'x' }, 'meta.description must be a non-empty string') + expectInvalid({ name: 'x', description: 42 }, 'meta.description must be a non-empty string') + expectInvalid({ name: 'x', description: 'd', whenToUse: 3 }, 'meta.whenToUse must be a string') }) - it('consumes a trailing semicolon after the literal, spaces included', () => { - const { body } = ok("export const meta = { name: 'x', description: 'y' };\nreturn 1") - expect(body).not.toContain(';') - expect(body.split('\n')[1]).toBe('return 1') - const spaced = ok("export const meta = { name: 'x', description: 'y' } ;\nreturn 1") - expect(spaced.body).not.toContain(';') + it('rejects malformed phases, entry by entry', () => { + expectInvalid({ name: 'x', description: 'd', phases: 'Scan' }, 'meta.phases must be an array') + expectInvalid({ name: 'x', description: 'd', phases: ['Scan'] }, 'meta.phases[0] must be an object') + expectInvalid({ name: 'x', description: 'd', phases: [{ title: '' }] }, 'meta.phases[0].title must be a non-empty string') + expectInvalid({ name: 'x', description: 'd', phases: [{ title: 'Scan', order: 1 }] }, 'meta.phases[0].order is not a recognized field') + expectInvalid({ name: 'x', description: 'd', phases: [{ title: 'Scan', detail: 9 }] }, 'meta.phases[0].detail must be a string') + expectInvalid({ name: 'x', description: 'd', phases: [{ title: 'Scan', model: 9 }] }, 'meta.phases[0].model must be a string') }) - it('rejects a script that does not begin with the meta statement (SCRIPT_PARSE)', () => { - expect(bad('const a = 1').code).toBe('SCRIPT_PARSE') - expect(bad('').code).toBe('SCRIPT_PARSE') - expect(bad('export const meta = [1]').code).toBe('SCRIPT_PARSE') - }) - - it('a near-miss prefix (comment header + whitespace, then no `export`) fails FAST as SCRIPT_PARSE', () => { - // Regression: the previous all-alternation prefix regex backtracked - // exponentially on exactly this shape (~×2 per extra whitespace char once - // the match fails), spinning the host synchronously inside start(). The - // linear trivia scan must reject it in effectively zero time. - const nearMiss = `// deep-audit workflow: reviews every route handler\n${' \n'.repeat(40)}/* second header block */\n${' '.repeat(200)}\nconst meta = { name: 'x', description: 'y' }\n` - const started = Date.now() - expect(bad(nearMiss).code).toBe('SCRIPT_PARSE') - expect(Date.now() - started).toBeLessThan(1000) - }) - - it('an unterminated block comment BEFORE the meta statement is SCRIPT_PARSE', () => { - const error = bad('/* never closed\nexport const meta = { name: "x", description: "y" }') - expect(error.code).toBe('SCRIPT_PARSE') - expect(error.message).toContain('unterminated comment') - }) - - it('a line comment running to EOF leaves no meta statement (SCRIPT_PARSE)', () => { - expect(bad('// only a comment, no newline').code).toBe('SCRIPT_PARSE') - }) - - it('rejects template interpolation in the meta block as impure (SCRIPT_PARSE)', () => { - const error = bad('export const meta = { name: `w-${1}`, description: "d" }\nreturn 1') - expect(error.code).toBe('SCRIPT_PARSE') - expect(error.message).toContain('pure literal') - }) - - it('rejects unbalanced literals, unterminated strings, and unterminated comments (SCRIPT_PARSE)', () => { - expect(bad('export const meta = { name: "x", description: "y"').code).toBe('SCRIPT_PARSE') - expect(bad('export const meta = { name: "x').code).toBe('SCRIPT_PARSE') - expect(bad('export const meta = { /* open').code).toBe('SCRIPT_PARSE') - // A line comment running to EOF (no newline) leaves the literal unbalanced. - expect(bad('export const meta = { name: "x" // eof comment').code).toBe('SCRIPT_PARSE') - }) - - it('rejects a literal referencing variables or calls (META_INVALID via the empty realm)', () => { - const error = bad('export const meta = { name: someVariable, description: "d" }\nreturn 1') - expect(error.code).toBe('META_INVALID') - expect(error.message).toContain('pure literal') - expect(bad('export const meta = { name: compute(), description: "d" }').code).toBe('META_INVALID') - }) - - it('rejects a literal evaluating to non-JSON data (META_INVALID via materialization)', () => { - const error = bad('export const meta = { name: "x", description: "d", whenToUse: () => 1 }') - expect(error.code).toBe('META_INVALID') - expect(error.message).toContain('JSON data') - }) - - it('a meta expression that THROWS maps to META_INVALID carrying the rendered value', () => { - const error = bad('export const meta = { name: (() => { throw "nope" })(), description: "d" }\nreturn 1') - expect(error.code).toBe('META_INVALID') - expect(error.message).toContain('pure literal') - expect(error.message).toContain('nope') - }) - - it('a spinning meta expression dies by the eval timeout', () => { - try { - extractMeta('export const meta = { name: (() => { while (true) {} })(), description: "d" }', 50) - throw new Error('expected the extraction to time out') - } catch (error: unknown) { - expect(error).toBeInstanceOf(WorkflowError) - expect((error as WorkflowError).code).toBe('META_INVALID') - expect((error as WorkflowError).message.toLowerCase()).toContain('timed out') - } - }) - - it('rejects shape violations with EVERY violation listed (META_INVALID)', () => { - const error = bad('export const meta = { description: 7, bogus: 1 }\nreturn 1') - expect(error.code).toBe('META_INVALID') - expect(error.message).toContain('meta.name must be a non-empty string') - expect(error.message).toContain('meta.description must be a non-empty string') - expect(error.message).toContain('meta.bogus is not a recognized field') - }) - - it('rejects malformed whenToUse and phases shapes precisely', () => { - expect(bad('export const meta = { name: "x", description: "d", whenToUse: 3 }').message) - .toContain('meta.whenToUse must be a string') - expect(bad('export const meta = { name: "x", description: "d", phases: "no" }').message) - .toContain('meta.phases must be an array') - expect(bad('export const meta = { name: "x", description: "d", phases: [3] }').message) - .toContain('meta.phases[0] must be an object') - expect(bad('export const meta = { name: "x", description: "d", phases: [{}] }').message) - .toContain('meta.phases[0].title must be a non-empty string') - expect(bad('export const meta = { name: "x", description: "d", phases: [{ title: "t", extra: 1 }] }').message) - .toContain('meta.phases[0].extra is not a recognized field') - expect(bad('export const meta = { name: "x", description: "d", phases: [{ title: "t", detail: 1 }] }').message) - .toContain('meta.phases[0].detail must be a string') - expect(bad('export const meta = { name: "x", description: "d", phases: [{ title: "t", model: 1 }] }').message) - .toContain('meta.phases[0].model must be a string') - }) - - it('stops scanning at the balanced literal — trailing expression text stays in the body', () => { - // The scanner extracts exactly `{ valueOf: null }`; the ` && 3` is body - // text (which would fail compilation later, but extraction sees only the - // literal and reports its unknown field). - expect(bad('export const meta = { valueOf: null } && 3').message) - .toContain('meta.valueOf is not a recognized field') + it('names EVERY violation in one throw, not just the first', () => { + expectInvalid( + { description: 7, extra: true, phases: [{ title: 'Scan' }, 'bad'] }, + 'meta.extra is not a recognized field', + 'meta.name must be a non-empty string', + 'meta.description must be a non-empty string', + 'meta.phases[1] must be an object', + ) }) }) diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.e2e.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.e2e.ts index 76cfd73d33..6353868a02 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.e2e.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.e2e.ts @@ -42,12 +42,12 @@ async function harness(): Promise { return built } -const SCRIPT = `export const meta = { +const META = { name: 'e2e-worker-arithmetic', description: 'two real children through a worker thread: one prose, one structured', phases: [{ title: 'Ask' }, { title: 'Judge' }], } -phase('Ask') +const SCRIPT = `phase('Ask') log('asking the prose child') const prose = await agent('Reply with exactly one short sentence: what is 2 + 2?') phase('Judge') @@ -76,7 +76,7 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('worker workflow engine with-key }) } - const run = ctx.workflows.start({ script: SCRIPT, parent: parentHandle.agent }) + const run = ctx.workflows.start({ script: SCRIPT, meta: META, parent: parentHandle.agent }) const result = await run.result await run.dispose() diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index 20911d052e..378dd6ecf6 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -5,7 +5,7 @@ import { AgentId } from '@deepseek-ai/dsh-agent' import type { Agent } from '@deepseek-ai/dsh-agent' import SubagentService from '@deepseek-ai/dsh-subagent' import type { SubagentCapabilities, SubagentProvider, SubagentResult, SubagentRun, SubagentStartRequest } from '@deepseek-ai/dsh-subagent' -import type { WorkflowResult, WorkflowResultInfo, WorkflowRunInfo } from '@deepseek-ai/dsh-workflow' +import type { WorkflowMeta, WorkflowResult, WorkflowResultInfo, WorkflowRunInfo } from '@deepseek-ai/dsh-workflow' import * as workerEngineModule from '../src/index.ts' import WorkerWorkflowEngine, { type Config } from '../src/index.ts' @@ -104,14 +104,14 @@ async function setup(options?: SetupOptions) { return { ctx, provider, parent: fakeParent() } } -/** Wrap a body in the minimal valid meta header. */ -function script(body: string, metaExtra = ''): string { - return `export const meta = { name: 'test-flow', description: 'a test workflow'${metaExtra} }\n${body}` +/** The standard test meta plus a body, spread into a start request. */ +function scripted(body: string, metaExtra?: Partial): { script: string; meta: WorkflowMeta } { + return { script: body, meta: { name: 'test-flow', description: 'a test workflow', ...metaExtra } } } /** Start + await one run, disposing on the way out. */ -async function run(ctx: Context, parent: Agent, source: string, args?: unknown): Promise { - const handle = ctx.workflows.start({ script: source, parent, ...args !== undefined ? { args } : {} }) +async function run(ctx: Context, parent: Agent, source: { script: string; meta: WorkflowMeta }, args?: unknown): Promise { + const handle = ctx.workflows.start({ ...source, parent, ...args !== undefined ? { args } : {} }) try { return await handle.result } finally { @@ -127,13 +127,13 @@ describe('dsh-workflow-workerthread', () => { for (const name of ['workflow/start', 'workflow/phase', 'workflow/log', 'workflow/agent-start', 'workflow/agent-end', 'workflow/end'] as const) { ctx.on(name, (...payload: unknown[]) => { events.push([name, payload]) }) } - const result = await run(ctx, parent, script(` + const result = await run(ctx, parent, scripted(` phase('Scan') log('starting with ' + args.files.length + ' files') const answers = await pipeline(args.files, (prev, item) => agent('read ' + item)) phase('Report') return { answers, count: args.files.length } - `, ", phases: [{ title: 'Scan' }, { title: 'Report' }]"), { files: ['a.ts', 'b.ts'] }) + `, { phases: [{ title: 'Scan' }, { title: 'Report' }] }), { files: ['a.ts', 'b.ts'] }) expect(result.stopReason).toBe('completed') expect(result.agentsStarted).toBe(2) @@ -156,7 +156,7 @@ describe('dsh-workflow-workerthread', () => { const { ctx, parent, provider } = await setup({ reply: () => ({ output: [], structured: { files: ['x.ts', 'y.ts'] }, stopReason: 'completed' }), }) - const result = await run(ctx, parent, script(` + const result = await run(ctx, parent, scripted(` const found = await agent('list files', { model: 'deepseek-v4-pro', schema: { type: 'object', properties: { files: { type: 'array', items: { type: 'string' } } }, required: ['files'] } }) return { first: found.files[0], count: found.files.length } `)) @@ -172,14 +172,14 @@ describe('dsh-workflow-workerthread', () => { it('a fatal hook error inside the worker kills the script and reports the error', async () => { const { ctx, parent } = await setup() - const result = await run(ctx, parent, script("return await parallel([() => agent('x', { isolation: 'worktree' })])")) + const result = await run(ctx, parent, scripted("return await parallel([() => agent('x', { isolation: 'worktree' })])")) expect(result.stopReason).toBe('error') expect(result.error).toContain('"isolation" is deferred') }) it('a provider start failure crosses back as a fatal AGENT_START error', async () => { const { ctx, parent } = await setup({ config: { provider: 'nonexistent' } }) - const result = await run(ctx, parent, script("return await pipeline([1], () => agent('p'))")) + const result = await run(ctx, parent, scripted("return await pipeline([1], () => agent('p'))")) expect(result.stopReason).toBe('error') expect(result.error).toContain('agent() could not start a child') }) @@ -200,7 +200,7 @@ describe('dsh-workflow-workerthread', () => { } ctx.subagents.registerProvider(provider) await ctx.plugin(WorkerWorkflowEngine, { provider: 'rejecting', maxConcurrentAgents: 2 }) - const result = await run(ctx, fakeParent(), script(` + const result = await run(ctx, fakeParent(), scripted(` try { await agent('p'); return 'unreachable' } catch (e) { return { name: e.name, code: e.code, fatal: e.fatal, message: e.message } } `)) expect(result.value).toMatchObject({ name: 'WorkflowError', code: 'AGENT_RESULT', fatal: true }) @@ -223,7 +223,7 @@ describe('dsh-workflow-workerthread', () => { } ctx.subagents.registerProvider(provider) await ctx.plugin(WorkerWorkflowEngine, { provider: 'bad-dispose', maxConcurrentAgents: 2 }) - const result = await run(ctx, fakeParent(), script("return await agent('p')")) + const result = await run(ctx, fakeParent(), scripted("return await agent('p')")) expect(result.stopReason).toBe('completed') expect(result.value).toBe('fine') }) @@ -248,17 +248,22 @@ describe('dsh-workflow-workerthread', () => { } ctx.subagents.registerProvider(provider) await ctx.plugin(WorkerWorkflowEngine, { provider: 'coercion-trap-dispose', maxConcurrentAgents: 2 }) - const result = await run(ctx, fakeParent(), script("return await agent('p')")) + const result = await run(ctx, fakeParent(), scripted("return await agent('p')")) expect(result.stopReason).toBe('completed') expect(result.value).toBe('fine') }) }) describe('lifecycle: parse errors, cancellation, termination, disposal', () => { - it('start() throws synchronously for an unparseable script or invalid meta (host-side pre-parse)', async () => { + it('start() throws synchronously for invalid meta data or an unparseable body (host-side pre-checks)', async () => { const { ctx, parent } = await setup() - expect(() => ctx.workflows.start({ script: 'const x = 1', parent })).toThrow(/must begin with/) - expect(() => ctx.workflows.start({ script: script('return ((('), parent })).toThrow(/does not parse/) + // Meta is DATA — shape violations reject loud, every one named. + expect(() => ctx.workflows.start({ script: 'return 1', meta: { name: '', description: 'd' }, parent })).toThrow(/meta\.name must be a non-empty string/) + expect(() => ctx.workflows.start({ script: 'return 1', meta: { name: 'x', description: 'd', extra: 1 } as unknown as WorkflowMeta, parent })).toThrow(/META_INVALID|not a recognized field/) + expect(() => ctx.workflows.start({ ...scripted('return ((('), parent })).toThrow(/does not parse/) + // The likeliest authoring slip — a Claude Code-style meta header in the + // body — gets a pointed message, not a bare SyntaxError. + expect(() => ctx.workflows.start({ ...scripted("export const meta = { name: 'x', description: 'd' }\nreturn 1"), parent })).toThrow(/meta rides the `meta` request field/) }) it('cancel() aborts in-flight children (signal AND cancel RPC) and settles the run cancelled', async () => { @@ -267,7 +272,7 @@ describe('dsh-workflow-workerthread', () => { ctx.on('workflow/agent-end', (_info, agent) => { ends.push(agent) }) const runEnds: WorkflowResultInfo[] = [] ctx.on('workflow/end', (_info, result) => { runEnds.push(result) }) - const handle = ctx.workflows.start({ script: script("return await agent('long job')"), parent }) + const handle = ctx.workflows.start({ ...scripted("return await agent('long job')"), parent }) await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) handle.cancel('user stopped it') const result = await handle.result @@ -287,7 +292,7 @@ describe('dsh-workflow-workerthread', () => { controller.abort() const logs: string[] = [] ctx.on('workflow/log', (_info, message) => { logs.push(message) }) - const handle = ctx.workflows.start({ script: script("log('ran')\nreturn 123"), parent, signal: controller.signal }) + const handle = ctx.workflows.start({ ...scripted("log('ran')\nreturn 123"), parent, signal: controller.signal }) const result = await handle.result expect(result.stopReason).toBe('cancelled') expect(result.value).toBeNull() @@ -298,7 +303,7 @@ describe('dsh-workflow-workerthread', () => { it('cancel() right after start() cancels before the body runs; the signal aborting mid-run cancels like cancel()', async () => { const { ctx, parent, provider } = await setup({ manual: true }) - const first = ctx.workflows.start({ script: script("return await agent('never')"), parent }) + const first = ctx.workflows.start({ ...scripted("return await agent('never')"), parent }) // No-reason cancel: the canonical default reason must ride the result. first.cancel() const firstResult = await first.result @@ -308,7 +313,7 @@ describe('dsh-workflow-workerthread', () => { await first.dispose() const controller = new AbortController() - const second = ctx.workflows.start({ script: script("return await agent('job')"), parent, signal: controller.signal }) + const second = ctx.workflows.start({ ...scripted("return await agent('job')"), parent, signal: controller.signal }) await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) controller.abort() expect((await second.result).stopReason).toBe('cancelled') @@ -323,7 +328,7 @@ describe('dsh-workflow-workerthread', () => { // timing can hit reliably. (The closure runs only after `handle` below // is initialized — the listener fires on the worker's first message.) ctx.on('workflow/log', () => { handle.cancel('cancelled from the log listener') }) - const handle = ctx.workflows.start({ script: script("log('mark')\nreturn await agent('late')"), parent }) + const handle = ctx.workflows.start({ ...scripted("log('mark')\nreturn await agent('late')"), parent }) const result = await handle.result expect(result.stopReason).toBe('cancelled') expect(provider.runs.length).toBe(0) @@ -342,7 +347,7 @@ describe('dsh-workflow-workerthread', () => { // host cancellation. The trailing narration exercises host-side // suppression: posted pre-cancel-processing worker-side, arriving // post-cancel host-side. - script: script(` + ...scripted(` log('started') const end = Date.now() + 1000 while (Date.now() < end) {} @@ -366,7 +371,7 @@ describe('dsh-workflow-workerthread', () => { const runEnds: WorkflowResultInfo[] = [] ctx.on('workflow/end', (_info, result) => { runEnds.push(result) }) const handle = ctx.workflows.start({ - script: script("await new Promise(() => {})\nreturn 'unreachable'"), + ...scripted("await new Promise(() => {})\nreturn 'unreachable'"), parent, }) handle.cancel('user aborted') @@ -382,7 +387,7 @@ describe('dsh-workflow-workerthread', () => { it('dispose() on a stuck script returns within the grace instead of hanging (result settles cancelled)', async () => { const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: 50 } }) const handle = ctx.workflows.start({ - script: script("await new Promise(() => {})\nreturn 'unreachable'"), + ...scripted("await new Promise(() => {})\nreturn 'unreachable'"), parent, }) const before = Date.now() @@ -394,7 +399,7 @@ describe('dsh-workflow-workerthread', () => { it('dispose() is idempotent and settles cleanly after a completed run', async () => { const { ctx, parent } = await setup() - const handle = ctx.workflows.start({ script: script('return 1'), parent }) + const handle = ctx.workflows.start({ ...scripted('return 1'), parent }) await handle.result await handle.dispose() await handle.dispose() @@ -405,7 +410,7 @@ describe('dsh-workflow-workerthread', () => { // apart from every other timeout in flight. const GRACE = 44_444 const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: GRACE } }) - const handle = ctx.workflows.start({ script: script('return 1'), parent }) + const handle = ctx.workflows.start({ ...scripted('return 1'), parent }) await handle.result const spy = vi.spyOn(globalThis, 'setTimeout') try { @@ -424,7 +429,7 @@ describe('dsh-workflow-workerthread', () => { it('strays: children fired without await are aborted once the script settles, and dispose() waits for their disposal', async () => { const { ctx, parent, provider } = await setup({ manual: true, disposeDelayMs: 40 }) const handle = ctx.workflows.start({ - script: script(` + ...scripted(` agent('stray') return 'done without awaiting' `), @@ -468,7 +473,7 @@ describe('dsh-workflow-workerthread', () => { ctx.subagents.registerProvider(provider) await ctx.plugin(WorkerWorkflowEngine, { provider: 'signal-only', maxConcurrentAgents: 2 }) const handle = ctx.workflows.start({ - script: script(` + ...scripted(` agent('stray, never awaited') return 'done' `), @@ -515,7 +520,7 @@ describe('dsh-workflow-workerthread', () => { // microtask yields let the agent() continuation POST its child-start // before the spin seizes the worker's loop (the posted message needs // no further worker-loop turns to reach the host). - script: script(` + ...scripted(` agent('wedged child') for (let i = 0; i < 20; i++) await null const end = Date.now() + 1500 @@ -560,7 +565,7 @@ describe('dsh-workflow-workerthread', () => { // The stray child's start RPC reaches the host, then the script kills // its own worker through the documented vm escape — the host must // settle `error` with the exit diagnostics and wind the child down. - script: script(` + ...scripted(` agent('doomed') const proc = ${ESCAPE} const st = globalThis.constructor.constructor('return setTimeout')() @@ -583,7 +588,7 @@ describe('dsh-workflow-workerthread', () => { it('an uncaught exception inside the worker surfaces as an error result and reaps the in-flight child', async () => { const { ctx, parent, provider } = await setup({ manual: true }) const handle = ctx.workflows.start({ - script: script(` + ...scripted(` agent('in flight when the worker dies') const proc = ${ESCAPE} const st = globalThis.constructor.constructor('return setTimeout')() @@ -613,7 +618,7 @@ describe('dsh-workflow-workerthread', () => { // The STRAY child settles instantly, so its wrapper starts the slow // host-side disposal concurrently while the script goes on to kill // its own worker — the ack then resolves into a dead thread. - script: script(` + ...scripted(` agent('stray, never awaited') const proc = ${ESCAPE} const st = globalThis.constructor.constructor('return setTimeout')() @@ -632,7 +637,7 @@ describe('dsh-workflow-workerthread', () => { it('a worker death AFTER a cancel reports cancelled, not error', async () => { const { ctx, parent } = await setup({ config: { provider: 'stub', disposeGraceMs: 60_000 } }) const handle = ctx.workflows.start({ - script: script(` + ...scripted(` const proc = ${ESCAPE} const st = globalThis.constructor.constructor('return setTimeout')() log('armed') @@ -659,8 +664,8 @@ describe('dsh-workflow-workerthread', () => { const { ctx, parent } = await setup() let eventMeta: WorkflowRunInfo | undefined ctx.on('workflow/start', (info) => { eventMeta = info }) - const first = ctx.workflows.start({ script: script('return 1'), parent }) - const second = ctx.workflows.start({ script: script('return 2'), parent }) + const first = ctx.workflows.start({ ...scripted('return 1'), parent }) + const second = ctx.workflows.start({ ...scripted('return 2'), parent }) expect(first.id).not.toBe(second.id) eventMeta!.meta.name = 'corrupted' expect(second.meta.name).toBe('test-flow') @@ -676,7 +681,7 @@ describe('dsh-workflow-workerthread', () => { expect(ctx.get('workflows')).toBeDefined() // A zero-agent run through the DEFAULT config exercises the auto // concurrency resolution (cores - 2, capped) in start(). - const result = await run(ctx, fakeParent(), script('return 6 * 7')) + const result = await run(ctx, fakeParent(), scripted('return 6 * 7')) expect(result.value).toBe(42) await fiber.dispose() expect(ctx.get('workflows')).toBeUndefined() diff --git a/packages/workflow/workflow/README.md b/packages/workflow/workflow/README.md index 317aaf9f81..5ff8028b0d 100644 --- a/packages/workflow/workflow/README.md +++ b/packages/workflow/workflow/README.md @@ -11,7 +11,7 @@ The protected `emitWorkflowEvent` helper dispatches the `workflow/*` events with ## Vocabulary - `WorkflowStartRequest` — `{ script, args?, parent: Agent, signal? }`. `parent` is REQUIRED: every child the script spawns is attributed to it. `args` must be plain host-realm JSON data. -- `WorkflowMeta` / `WorkflowPhase` — the script's validated `export const meta` block (Claude Code format: required `name`/`description`, optional `whenToUse`/`phases`). +- `WorkflowMeta` / `WorkflowPhase` — the workflow's identity block, carried as plain JSON data on the start request (Claude Code meta vocabulary: required `name`/`description`, optional `whenToUse`/`phases`) and shape-validated by the engine. - `WorkflowRun` — `{ id, meta, result, cancel(reason?), dispose() }`; the consumer awaits `result` and MUST `dispose` on every path. - `WorkflowResult` — `{ value, stopReason: 'completed'|'cancelled'|'error', error?, agentsStarted }`; `value` is the script's materialized return (plain JSON data; `null` for no return). - `WorkflowError` — `HarnessError` with a `WorkflowErrorCode` and a `fatal` flag driving the combinator discipline: a fatal error (bad hook arguments, unsupported options/schemas, tripped caps, seam start failures, cancellation) always propagates through `parallel()`/`pipeline()` instead of dissolving into a per-item `null`. `isFatalWorkflowError(error)` is the catch-site predicate. diff --git a/packages/workflow/workflow/src/types.ts b/packages/workflow/workflow/src/types.ts index 8552e32454..66da4f1268 100644 --- a/packages/workflow/workflow/src/types.ts +++ b/packages/workflow/workflow/src/types.ts @@ -35,9 +35,11 @@ export interface WorkflowPhase { } /** - * The script's `export const meta` block, validated by the engine before the - * body runs. `name`/`description` are required; the rest is optional - * annotation. Matches the Claude Code dynamic-workflows script format. + * The script's identity block, provided as plain JSON data alongside the + * script body (the model-facing tool carries it as its `meta` parameter) and + * validated by the engine before the body runs. `name`/`description` are + * required; the rest is optional annotation. The field vocabulary matches the + * Claude Code dynamic-workflows meta block. */ export interface WorkflowMeta { /** Short kebab-case workflow name (display + persistence key). */ @@ -51,14 +53,18 @@ export interface WorkflowMeta { } /** - * What a caller asks for when starting a workflow run. `parent` is REQUIRED — - * every `agent()` the script spawns is attributed to it (cwd, lineage, depth - * flow through the subagent seam). `args` must be plain host-realm JSON data; - * the engine exposes it to the script as the `args` global. + * What a caller asks for when starting a workflow run. `meta` and `args` are + * plain JSON DATA by the seam contract (the tool builds both from the model's + * schema-validated call; the engine validates `meta`'s shape and rejects loud + * before anything runs) — an engine never evaluates script text to obtain + * them. `parent` is REQUIRED — every `agent()` the script spawns is + * attributed to it (cwd, lineage, depth flow through the subagent seam). */ export interface WorkflowStartRequest { - /** The full script text: `export const meta = {...}` + a plain-JS body. */ + /** The plain-JS script body (top-level await allowed; ends with `return `). */ script: string + /** The workflow's identity block, as plain JSON data (shape-validated by the engine). */ + meta: WorkflowMeta /** Optional input exposed verbatim to the script as the `args` global. */ args?: unknown /** The agent on whose behalf the run executes (parent of every child). */ From f91bfc1fcfadb370a38bc1a3463cd7ee23df5276 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 20:25:59 +0800 Subject: [PATCH 143/232] test: re-record the header pin and workflow-run for the meta-parameter schema MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The workflow tool's wire schema changed (required meta object parameter; body-only script). Request-header content is pinned by exactly ONE scenario (text-turn) and scrubbed to {{system}}/{{tools}} tokens everywhere else, so the schema change re-records exactly two fixtures: - text-turn — the pinned header itself (the one committed copy of the tool schemas; every other scenario's live header is asserted equal to this pin by the uniformity guard). - workflow-run — its recorded interaction used the removed call shape (meta embedded in the script), which the engine now rejects; the authored prompt is updated to dictate the new shape (meta as a parameter, body-only script) and the scenario re-recorded to a clean single call. Every other fixture stays byte-identical and replays green against the new pin. Known pre-existing exception: fs-policy-reject's recording carries a GNU-only sed -i fallback that fails BSD/macOS replay — kept out of this change deliberately (the snapshot CI lane is ubuntu). --- .../tests/snapshots/text-turn/session.jsonl | 69 ++-- .../snapshots/text-turn/stdout.golden.jsonl | 9 +- .../tests/snapshots/workflow-run/input.json | 2 +- .../snapshots/workflow-run/session.1.jsonl | 75 ++-- .../snapshots/workflow-run/session.jsonl | 359 ++++++++++-------- .../workflow-run/stdout.golden.jsonl | 100 +++-- 6 files changed, 366 insertions(+), 248 deletions(-) diff --git a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl index 39898c5003..8475c97896 100644 --- a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl @@ -1,33 +1,36 @@ -{"type":"session","version":0,"id":"423e2c78-075e-4286-8027-85b0e64da45d","createdAt":1783437535685,"cwd":"/tmp/acp-snap-cwd-XUOYdd"} -{"type":"turn/start","seq":0,"time":1783437535688,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783437535689,"data":{"content":[{"type":"text","text":"Reply with exactly the word: PONG. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783437535690,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783437535690,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-XUOYdd.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe script MUST begin with `export const meta = {...}` — a PURE object literal (no variables, calls, or template interpolation) with required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The body after it is plain JavaScript (NOT TypeScript) running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The complete workflow script: `export const meta = {...}` followed by the plain-JS body (top-level await allowed; end with `return `)."},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} -{"type":"assistant/chunk","seq":4,"time":1783437536390,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} 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Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":2,"time":1783600629542,"data":{"turn":1,"step":1}} +{"type":"request/header","seq":3,"time":1783600629542,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/bn/vj1dvck95yd5jh3x4wskflxm0000gn/T/acp-snap-cwd-ka5r8w.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. 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Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. 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Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} +{"type":"assistant/chunk","seq":4,"time":1783600630819,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} 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+{"type":"assistant/chunk","seq":30,"time":1783600631009,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":3091,"outputTokens":23,"cacheReadTokens":0,"reasoningTokens":20}}}} +{"type":"assistant/chunk","seq":31,"time":1783600631009,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":32,"time":1783600631011,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"The user wants me to reply with exactly the word \"PONG\" and not use any tools."},{"type":"text","text":"PONG"}],"usage":{"inputTokens":3091,"outputTokens":23,"cacheReadTokens":0,"reasoningTokens":20}},"sourceEventSeqs":[4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31],"surfaceOp":"append"} +{"type":"step/end","seq":33,"time":1783600631011,"data":{"turn":1,"step":1}} +{"type":"turn/end","seq":34,"time":1783600631011,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/text-turn/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/text-turn/stdout.golden.jsonl index bc3582f027..dda3afb9c5 100644 --- a/examples/acp-agent/tests/snapshots/text-turn/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/text-turn/stdout.golden.jsonl @@ -8,15 +8,18 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" exactly"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" word"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"P"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONG"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":".\""}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\""}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" no"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" not"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" use"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" any"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" tools"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"P"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"ONG"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"."}}}} {"jsonrpc":"2.0","id":3,"result":{"stopReason":"end_turn"}} diff --git a/examples/acp-agent/tests/snapshots/workflow-run/input.json b/examples/acp-agent/tests/snapshots/workflow-run/input.json index 2c402dc49e..e5deb7edd0 100644 --- a/examples/acp-agent/tests/snapshots/workflow-run/input.json +++ b/examples/acp-agent/tests/snapshots/workflow-run/input.json @@ -2,6 +2,6 @@ "steps": [ { "op": "initialize" }, { "op": "newSession" }, - { "op": "prompt", "text": "Use the workflow tool exactly once, with args omitted and this EXACT script (copy it verbatim):\nexport const meta = { name: 'snapshot-flow', description: 'one child for the snapshot' }\nphase('Run')\nconst reply = await agent('Reply with exactly the word WF_CHILD_OK and nothing else.')\nreturn { reply }\nAfter the workflow returns, reply with the single word WORKFLOW_DONE and stop. Do not use any other tool." } + { "op": "prompt", "text": "Use the workflow tool exactly once, with args omitted, meta set to { \"name\": \"snapshot-flow\", \"description\": \"one child for the snapshot\" }, and this EXACT script body (copy it verbatim):\nphase('Run')\nconst reply = await agent('Reply with exactly the word WF_CHILD_OK and nothing else.')\nreturn { reply }\nAfter the workflow returns, reply with the single word WORKFLOW_DONE and stop. Do not use any other tool." } ] } diff --git a/examples/acp-agent/tests/snapshots/workflow-run/session.1.jsonl b/examples/acp-agent/tests/snapshots/workflow-run/session.1.jsonl index 34f6710ee1..a8c1d6018b 100644 --- a/examples/acp-agent/tests/snapshots/workflow-run/session.1.jsonl +++ b/examples/acp-agent/tests/snapshots/workflow-run/session.1.jsonl @@ -1,39 +1,36 @@ -{"type":"session","version":0,"id":"ba8789c0-cfec-4ec0-9f19-d30e086c3428","createdAt":1783352155100,"cwd":"/tmp/acp-snap-cwd-Z6uc79","parentSession":"322d3a3d-add3-4926-a507-9a6a70a2123a"} -{"type":"turn/start","seq":0,"time":1783352155101,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783352155101,"data":{"content":[{"type":"text","text":"Reply with exactly the word WF_CHILD_OK and nothing else."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783352155102,"data":{"turn":1,"step":1}} 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{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"OW"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"_D"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONE"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" Let"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\"\n\n"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"Let"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" me"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" do"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" this"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" exactly"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" as"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" instructed"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" that"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_Vp9f0l50KeeHRfcBezz08251","title":"workflow: snapshot-flow","kind":"other","status":"in_progress","rawInput":"export const meta = { name: 'snapshot-flow', description: 'one child for the snapshot' }\nphase('Run')\nconst reply = await agent('Reply with exactly the word WF_CHILD_OK and nothing else.')\nreturn { reply }"}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_Vp9f0l50KeeHRfcBezz08251","status":"completed","content":[{"type":"content","content":{"type":"text","text":"workflow \"snapshot-flow\" completed (1 agent).\nReturn value:\n{\n \"reply\": \"WF_CHILD_OK\"\n}"}}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_dD2BLuNeJCTh2iiYC1QR3449","title":"workflow: snapshot-flow","kind":"other","status":"in_progress","rawInput":"\nphase('Run')\nconst reply = await agent('Reply with exactly the word WF_CHILD_OK and nothing else.')\nreturn { reply }\n"}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_dD2BLuNeJCTh2iiYC1QR3449","status":"completed","content":[{"type":"content","content":{"type":"text","text":"workflow \"snapshot-flow\" completed (1 agent).\nReturn value:\n{\n \"reply\": \"WF_CHILD_OK\"\n}"}}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" workflow"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" returned"}}}} @@ -53,16 +109,16 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" single"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" word"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" WORK"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" exactly"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"WORK"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"FL"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"OW"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"_D"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONE"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" as"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" instructed"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\""}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" stop"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"WORK"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"FL"}}}} From 2c03b2bc29d0bbea7a4d0bfd3a63db3496015492 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 20:56:44 +0800 Subject: [PATCH 144/232] feat: surface the run_code program in the ACP tool-call card MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The generated program rode only rawInput — the detail/expanded slot many ACP clients never open — so the code a run executed was invisible in the UI stream. presentCall now also carries it as a fenced ts block in the card's content, which the bridge already forwards as tool_call content. The two code-mode snapshot goldens are re-recorded live and replay green; the presentation unit test pins the fenced block. --- .../snapshots/both-mode-turn/session.jsonl | 232 ++++++----- .../both-mode-turn/stdout.golden.jsonl | 15 +- .../snapshots/code-mode-turn/session.jsonl | 377 +++++++++--------- .../code-mode-turn/stdout.golden.jsonl | 65 ++- packages/core/tools/src/code-mode.ts | 12 +- packages/core/tools/tests/code-mode.spec.ts | 10 +- 6 files changed, 359 insertions(+), 352 deletions(-) diff --git a/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl b/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl index a2b0e9921b..c7bf7c3eba 100644 --- a/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl @@ -1,110 +1,122 @@ -{"type":"session","version":0,"id":"55c51419-0ee3-4c06-8199-cc69eef57a45","createdAt":1783484575071,"cwd":"/tmp/acp-snap-cwd-lORmOD"} -{"type":"turn/start","seq":0,"time":1783484575075,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783484575076,"data":{"content":[{"type":"text","text":"Call the run_code tool (NOT the native bash tool directly) with a program that runs exactly `echo BOTH_OK` via tools.bash and returns its output. Then reply with that output only and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783484575078,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783484575079,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-lORmOD.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's text output as a string. Tool arguments must be JSON-serializable.\n- A FAILED tool call rejects with an `Error` carrying the tool's error text — `try/catch` it to handle and continue.\n- Calls execute sequentially, even under `Promise.all`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ndeclare const tools: {\n /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. */\n bash(args: {\n /** The bash command to execute. */\n command: string;\n /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n description: string;\n /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n timeoutMs?: number;\n /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n workdir?: string;\n /** Run in the background and return a task id immediately. No timeout applies. */\n run_in_background?: boolean;\n }): Promise;\n /** Ask the executor to kill a running background bash task by task id. */\n bash_kill(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output. */\n bash_output(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Edit an existing UTF-8 text file by replacing literal text. */\n edit(args: {\n /** Path to edit, resolved by the filesystem backend. */\n file_path: string;\n /** Literal text to replace. Must match exactly. */\n old_string: string;\n /** Literal replacement text. Use an empty string to delete the match. */\n new_string: string;\n /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n replace_all?: boolean;\n }): Promise;\n /** Read a UTF-8 text file and return line-numbered content. */\n read(args: {\n /** Path to read, resolved by the filesystem backend. */\n file_path: string;\n /** 1-based first line to return. Defaults to 1. */\n offset?: number;\n /** Maximum number of lines to return. Defaults to 2000. */\n limit?: number;\n }): Promise;\n /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. */\n subagent(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */\n prompt: string;\n }): Promise;\n /** Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. */\n subagent_fork(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */\n prompt: string;\n }): Promise;\n /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */\n todo_write(args: {\n /** The COMPLETE task list, replacing any previous list. */\n todos: ({\n /** What the task is — a short imperative line. */\n content: string;\n /** pending (not started) | in_progress (now) | completed (done). */\n status: \"pending\" | \"in_progress\" | \"completed\";\n })[];\n }): Promise;\n /** Create or fully replace a UTF-8 text file. */\n write(args: {\n /** Path to write, resolved by the filesystem backend. */\n file_path: string;\n /** Full UTF-8 text content to write. */\n content: string;\n }): Promise;\n}\n```","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. 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Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. 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Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."}},"required":["code"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. 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I need to reply with that output only and stop."},{"type":"text","text":"BOTH_OK"}],"usage":{"inputTokens":17,"outputTokens":23,"cacheReadTokens":3840,"reasoningTokens":19}},"sourceEventSeqs":[90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117],"surfaceOp":"append"} +{"type":"step/end","seq":119,"time":1783600819694,"data":{"turn":1,"step":2}} +{"type":"turn/end","seq":120,"time":1783600819694,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/both-mode-turn/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/both-mode-turn/stdout.golden.jsonl index d307e1d60f..4a959143d7 100644 --- a/examples/acp-agent/tests/snapshots/both-mode-turn/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/both-mode-turn/stdout.golden.jsonl @@ -25,7 +25,7 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ash"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" returns"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" its"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" output"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" Let"}}}} @@ -33,8 +33,8 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" do"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" that"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_fwre7Dvt0ZU6p96bEBdk6728","title":"Run code","kind":"execute","status":"in_progress","rawInput":"return await tools.bash({ command: \"echo BOTH_OK\", description: \"Echo BOTH_OK\" });"}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_fwre7Dvt0ZU6p96bEBdk6728","status":"completed","content":[{"type":"content","content":{"type":"text","text":"BOTH_OK\n"}}],"title":"Run code (1 tool call)"}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_Kv45KGQIqVt8nuaRebYh2326","title":"Run code","kind":"execute","status":"in_progress","rawInput":"const result = await tools.bash({\n command: \"echo BOTH_OK\",\n description: \"Echo BOTH_OK string\"\n});\nreturn result;","content":[{"type":"content","content":{"type":"text","text":"```ts\nconst result = await tools.bash({\n command: \"echo BOTH_OK\",\n description: \"Echo BOTH_OK string\"\n});\nreturn result;\n```"}}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_Kv45KGQIqVt8nuaRebYh2326","status":"completed","content":[{"type":"content","content":{"type":"text","text":"BOTH_OK\n"}}],"title":"Run code (1 tool call)"}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" output"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" is"}}}} @@ -43,11 +43,16 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"OTH"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"_OK"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" Let"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" me"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" I"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" need"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" that"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" output"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" only"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" stop"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"B"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"OTH"}}}} diff --git a/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl b/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl index dd9c0bed28..97d73709fc 100644 --- a/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl @@ -1,196 +1,181 @@ -{"type":"session","version":0,"id":"92c80cd8-dddc-4cd6-a05a-9676ef54af5e","createdAt":1783484558135,"cwd":"/tmp/acp-snap-cwd-zej9wx"} -{"type":"turn/start","seq":0,"time":1783484558139,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783484558139,"data":{"content":[{"type":"text","text":"Using ONE run_code program: call the bash tool twice — exactly `echo CODE_ONE` then exactly `echo CODE_TWO` — and return the two outputs joined with a plus sign. Then reply with that joined string only and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783484558142,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783484558142,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-zej9wx.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's text output as a string. Tool arguments must be JSON-serializable.\n- A FAILED tool call rejects with an `Error` carrying the tool's error text — `try/catch` it to handle and continue.\n- Calls execute sequentially, even under `Promise.all`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ndeclare const tools: {\n /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. */\n bash(args: {\n /** The bash command to execute. */\n command: string;\n /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n description: string;\n /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n timeoutMs?: number;\n /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n workdir?: string;\n /** Run in the background and return a task id immediately. No timeout applies. */\n run_in_background?: boolean;\n }): Promise;\n /** Ask the executor to kill a running background bash task by task id. */\n bash_kill(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output. */\n bash_output(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Edit an existing UTF-8 text file by replacing literal text. */\n edit(args: {\n /** Path to edit, resolved by the filesystem backend. */\n file_path: string;\n /** Literal text to replace. Must match exactly. */\n old_string: string;\n /** Literal replacement text. Use an empty string to delete the match. */\n new_string: string;\n /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n replace_all?: boolean;\n }): Promise;\n /** Read a UTF-8 text file and return line-numbered content. */\n read(args: {\n /** Path to read, resolved by the filesystem backend. */\n file_path: string;\n /** 1-based first line to return. Defaults to 1. */\n offset?: number;\n /** Maximum number of lines to return. Defaults to 2000. */\n limit?: number;\n }): Promise;\n /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. 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{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" two"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" outputs"}}}} @@ -46,26 +34,21 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" a"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" plus"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" sign"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\n\n"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"Then"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" just"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" that"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" joined"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" string"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":".\n\n"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"Let"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" Let"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" me"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" write"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" code"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" a"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" single"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" run"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"_code"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" program"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_TBMd5LxIFwxqRBHOErfg0279","title":"Run code","kind":"execute","status":"in_progress","rawInput":"const out1 = await tools.bash({ command: \"echo CODE_ONE\", description: \"Echo CODE_ONE\" });\nconst out2 = await tools.bash({ command: \"echo CODE_TWO\", description: \"Echo CODE_TWO\" });\nreturn out1.trim() + \"+\" + out2.trim();"}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_TBMd5LxIFwxqRBHOErfg0279","status":"completed","content":[{"type":"content","content":{"type":"text","text":"CODE_ONE+CODE_TWO"}}],"title":"Run code (2 tool calls)"}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_RJaLT7yuWS9RqjyD9wP85417","title":"Run code","kind":"execute","status":"in_progress","rawInput":"const out1 = await tools.bash({ command: \"echo CODE_ONE\", description: \"Echo first code\" });\nconst out2 = await tools.bash({ command: \"echo CODE_TWO\", description: \"Echo second code\" });\nreturn out1.trim() + \"+\" + out2.trim();","content":[{"type":"content","content":{"type":"text","text":"```ts\nconst out1 = await tools.bash({ command: \"echo CODE_ONE\", description: \"Echo first code\" });\nconst out2 = await tools.bash({ command: \"echo CODE_TWO\", description: \"Echo second code\" });\nreturn out1.trim() + \"+\" + out2.trim();\n```"}}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_RJaLT7yuWS9RqjyD9wP85417","status":"completed","content":[{"type":"content","content":{"type":"text","text":"CODE_ONE+CODE_TWO"}}],"title":"Run code (2 tool calls)"}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" result"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" is"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" program"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" returned"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" exactly"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" what"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" was"}}}} @@ -81,12 +64,16 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"WO"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"`."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" I"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"'ll"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" need"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" just"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" that"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" joined"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" string"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" only"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" stop"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"CODE"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"_"}}}} diff --git a/packages/core/tools/src/code-mode.ts b/packages/core/tools/src/code-mode.ts index 404364d57c..1ae26a5eb9 100644 --- a/packages/core/tools/src/code-mode.ts +++ b/packages/core/tools/src/code-mode.ts @@ -289,7 +289,17 @@ export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () => exec.signal?.removeEventListener('abort', onOuterAbort) } }, - presentCall: args => ({ card: 'generic', title: 'Run code', kind: 'execute', rawInput: args.code }), + // The program IS the call: surface it as an always-visible fenced block in + // the card body (rawInput alone lands in detail/expanded views many + // clients never open). Fence collisions are impossible to break rendering + // — a backtick run inside the program at worst ends the block early. + presentCall: args => ({ + card: 'generic', + title: 'Run code', + kind: 'execute', + rawInput: args.code, + content: [{ type: 'text', text: `\`\`\`ts\n${args.code}\n\`\`\`` }], + }), presentResult: (_args, result) => { const meta = asRunCodeMeta(result.meta) if (!meta) return undefined diff --git a/packages/core/tools/tests/code-mode.spec.ts b/packages/core/tools/tests/code-mode.spec.ts index 03afc260ee..092e0ed90e 100644 --- a/packages/core/tools/tests/code-mode.spec.ts +++ b/packages/core/tools/tests/code-mode.spec.ts @@ -447,7 +447,15 @@ describe('the run_code dispatch bridge', () => { it('presents the pending call as a generic execute card carrying the program, and the result with the captured output', async () => { const { ctx } = await setup({ mode: 'code' }) const tool = ctx.tools.get(RUN_CODE_NAME)! - expect(tool.presentCall?.({ code: 'return 1' })).toEqual({ card: 'generic', title: 'Run code', kind: 'execute', rawInput: 'return 1' }) + expect(tool.presentCall?.({ code: 'return 1' })).toEqual({ + card: 'generic', + title: 'Run code', + kind: 'execute', + rawInput: 'return 1', + // The program rides the card BODY as a fenced block — visible in ACP + // clients that never open the rawInput detail view. + content: [{ type: 'text', text: '```ts\nreturn 1\n```' }], + }) const view = tool.presentResult?.({ code: 'return 1' }, { content: [{ type: 'text', text: 'model-facing' }], isError: false, From 6f86f6081b1818614a48a87765d394dada689781 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 21:14:30 +0800 Subject: [PATCH 145/232] workflow: dispose() host-drives child disposal inside the grace --- .../workflow/workflow-workerthread/README.md | 2 +- .../workflow-workerthread/src/host.ts | 90 ++++++++++++------- .../tests/workflow-workerthread.spec.ts | 62 ++++++++++++- 3 files changed, 119 insertions(+), 35 deletions(-) diff --git a/packages/workflow/workflow-workerthread/README.md b/packages/workflow/workflow-workerthread/README.md index 25c79ad09c..dc8859d351 100644 --- a/packages/workflow/workflow-workerthread/README.md +++ b/packages/workflow/workflow-workerthread/README.md @@ -32,7 +32,7 @@ Values LEAVING the script (hook options/schemas, the script's return) are materi Per-run limits: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` posts the cancel to the worker (its hooks start throwing `CANCELLED`; the script dies at its next await) and cancels every host-side child NOW on **both seam channels** — the shared request signal aborts AND each registered child's explicit `cancel()` is called host-side, because the seam leaves a provider free to honor either channel and a worker wedged in a synchronous spin could not relay its own per-child cancel RPCs (those later land as idempotent no-ops). The grace then arms: a run still unsettled `disposeGraceMs` later force-settles `cancelled` and the worker is **terminated**. A cancellation that lands before the body runs (the ready→go handshake) reports `cancelled` without executing anything; a worker `result` racing an in-flight host cancellation reports `cancelled` too (first-wins settlement — the seam-visible result had not settled when cancellation was requested); post-cancel `phase`/`log` narration is suppressed host-side, while cancelled children still deliver their paired `agent-end`. -A worker that dies unexpectedly (an OOM, a script reaching `process.exit` through the documented vm escape) settles the run `stopReason: 'error'` with the exit diagnostics — or `'cancelled'` when a cancel was in flight — and the host-side child registry is what winds every surviving child down. `dispose()` = cancel + bounded wait (result, then child-registry quiescence, capped by the grace) + unconditional `worker.terminate()`: the thread never outlives its run. Once a run settles, stray children a script fired without awaiting are cancelled too, and `dispose()` waits for their disposal (bounded by the grace) before returning. +A worker that dies unexpectedly (an OOM, a script reaching `process.exit` through the documented vm escape) settles the run `stopReason: 'error'` with the exit diagnostics — or `'cancelled'` when a cancel was in flight — and the host-side child registry is what winds every surviving child down. `dispose()` = cancel + immediate host-driven disposal of every registered child (a wedged worker can relay no dispose RPC, so child teardown overlaps the grace instead of starting after it; the worker's own dispose RPCs join the same per-child disposal) + bounded wait (result, then child-registry quiescence, capped by the grace) + unconditional `worker.terminate()`: the thread never outlives its run. Once a run settles, stray children a script fired without awaiting are cancelled too, and `dispose()` waits for their disposal (bounded by the grace) before returning. **Engine-specific limitations**: worker startup is paid per run; on a termination path `agentsStarted` reports the HOST-observed count (accepted `child-start`s — calls still queued worker-side for a concurrency slot are unknowable then); and a returned promise or thenable resolves per JavaScript semantics BEFORE materialization — that is what makes an un-awaited `return agent('x')` work — with the value-boundary guard applying to the resolution. diff --git a/packages/workflow/workflow-workerthread/src/host.ts b/packages/workflow/workflow-workerthread/src/host.ts index 9d98d00933..c512c15dee 100644 --- a/packages/workflow/workflow-workerthread/src/host.ts +++ b/packages/workflow/workflow-workerthread/src/host.ts @@ -15,9 +15,14 @@ * terminated — the real kill an in-process engine could not perform). * * Children live in a host-side registry (callId → run): the worker drives - * their disposal by RPC on the graceful path, and the registry is what lets - * the host abort and dispose every survivor when the worker dies or is - * terminated mid-flight. On a termination path `agentsStarted` reports the + * their disposal by RPC on the graceful path, `dispose()` host-drives every + * registered child's disposal immediately (a wedged worker can relay no + * dispose RPC, and child teardown must overlap the grace, not start after + * it), and the registry is what lets the host abort and dispose every + * survivor when the worker dies or is terminated mid-flight. The three + * paths share ONE disposal per child (memoized by callId; the seam's + * dispose() is idempotent anyway, the memo keeps the bookkeeping and the + * containment warn single). On a termination path `agentsStarted` reports the * HOST-observed count (accepted `child-start` messages) — `agent()` calls * still queued worker-side for a concurrency slot are unknowable then; the * worker's own count rides the result message on every graceful path. @@ -85,6 +90,8 @@ export class WorkerRun implements WorkflowRun { private hostStarted = 0 /** Live children by callId; an entry leaves ONLY after its dispose settles (quiescence = empty). */ private readonly children = new Map() + /** In-flight child disposals by callId — the memo that gives every path (worker RPC, dispose(), reap) ONE shared disposal per child. */ + private readonly childDisposals = new Map>() private readonly quiescenceWaiters: (() => void)[] = [] /** The per-run abort fanout every child start request carries. */ private readonly controller = new AbortController() @@ -156,17 +163,24 @@ export class WorkerRun implements WorkflowRun { } /** - * Cancel + bounded settle + termination. Waits (at most the grace) for the - * result and child quiescence, then terminates the worker unconditionally - * — the thread never outlives its run — and reaps whatever children - * remain (their disposal is contained, not awaited past the grace, the - * same abandonment the seam documents for a slow-disposing child). - * Idempotent; safe on every path. + * Cancel + bounded settle + termination. Host-drives every registered + * child's disposal IMMEDIATELY — a wedged worker can relay no dispose RPC, + * and deferring child teardown to the post-terminate reap would spend the + * whole grace waiting for a quiescence that cannot start, then return with + * the disposals still in flight — so child disposal overlaps the same + * grace the worker gets to settle (the worker's own dispose RPCs join the + * shared per-child disposal). Waits (at most the grace) for the result and + * child quiescence, then terminates the worker unconditionally — the + * thread never outlives its run — and reaps whatever children remain + * (their disposal is contained, not awaited past the grace, the same + * abandonment the seam documents for a slow-disposing child). Idempotent; + * safe on every path. * @returns resolves when the run's resources are released or abandoned. */ dispose(): Promise { this.disposed ??= (async () => { this.cancel('workflow disposed') + for (const [callId, run] of [...this.children]) void this.disposeChild(callId, run) await Promise.race([ (async () => { await this.result @@ -278,31 +292,47 @@ export class WorkerRun implements WorkflowRun { private onChildDispose(callId: number): void { const run = this.children.get(callId) - /* v8 ignore next 5 -- dispose RPC for an already-reaped child: only a worker-death race can produce it, not orderable in-process */ if (run === undefined) { - // Already reaped — the ack is still owed (the worker-side wrapper awaits it). + // Already disposed host-side (a dispose() drive or a death reap beat + // the RPC) — the ack is still owed (the worker-side wrapper awaits it). this.post(HostToWorkerType.ChildDisposed, { callId }) return } - void run.dispose().then( - () => { - this.finishChild(callId) - this.post(HostToWorkerType.ChildDisposed, { callId }) - }, - (error: unknown) => { - // The subagent seam's dispose() is not supposed to reject; a backend - // that does anyway must not wedge the script's finally (which awaits - // the ack) — ack and move on. - this.ctx.logger.warn(`workflow-workerthread: child dispose failed: ${renderThrown(error)}`) - this.finishChild(callId) - this.post(HostToWorkerType.ChildDisposed, { callId }) - }, - ) + // disposeChild never rejects (containment is inside), so the ack always follows. + void this.disposeChild(callId, run).then(() => { this.post(HostToWorkerType.ChildDisposed, { callId }) }) } - /** Drop a child from the registry, releasing quiescence waiters at zero. */ + /** + * Start (or join) one registered child's disposal; the registry entry + * leaves when it settles. Memoized per callId: the worker's dispose RPC, + * the dispose() host drive, and the reap can all land on the same child — + * the child's `dispose()` runs once and every caller awaits that one + * settlement. A rejection is contained (the subagent seam's dispose() is + * not supposed to reject, but a backend that does anyway must not break + * quiescence): logged, and the child still leaves the registry. + * @param callId - the child's registry key. + * @param run - the registered child (the caller looked it up). + * @returns resolves when the disposal settled either way; never rejects. + */ + private disposeChild(callId: number, run: SubagentRun): Promise { + let disposal = this.childDisposals.get(callId) + if (disposal === undefined) { + disposal = run.dispose().then( + () => { this.finishChild(callId) }, + (error: unknown) => { + this.ctx.logger.warn(`workflow-workerthread: child dispose failed: ${renderThrown(error)}`) + this.finishChild(callId) + }, + ) + this.childDisposals.set(callId, disposal) + } + return disposal + } + + /** Drop a child from the registry (and its disposal memo), releasing quiescence waiters at zero. */ private finishChild(callId: number): void { this.children.delete(callId) + this.childDisposals.delete(callId) if (this.children.size === 0) { for (const waiter of this.quiescenceWaiters.splice(0)) waiter() } @@ -319,13 +349,7 @@ export class WorkerRun implements WorkflowRun { this.controller.abort(this.cancelReason ?? reason) for (const [callId, run] of [...this.children]) { run.cancel(this.cancelReason ?? reason) - void run.dispose().then( - () => { this.finishChild(callId) }, - (error: unknown) => { - this.ctx.logger.warn(`workflow-workerthread: child dispose failed during reap: ${renderThrown(error)}`) - this.finishChild(callId) - }, - ) + void this.disposeChild(callId, run) } } diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index 378dd6ecf6..c1c26dcf0f 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -23,6 +23,7 @@ interface ControlledRun { settle(result: SubagentResult): void cancelled: string | undefined disposed: boolean + disposeCalls: number } /** @@ -45,7 +46,7 @@ class StubProvider implements SubagentProvider { start(request: SubagentStartRequest): SubagentRun { let settle!: (result: SubagentResult) => void const result = new Promise((resolve) => { settle = resolve }) - const controlled: ControlledRun = { request, settle, cancelled: undefined, disposed: false } + const controlled: ControlledRun = { request, settle, cancelled: undefined, disposed: false, disposeCalls: 0 } this.runs.push(controlled) const index = this.runs.length - 1 request.signal?.addEventListener('abort', () => { settle({ output: [], stopReason: 'aborted' }) }, { once: true }) @@ -61,6 +62,7 @@ class StubProvider implements SubagentProvider { settle({ output: [], stopReason: 'aborted' }) }, dispose: () => { + controlled.disposeCalls += 1 if (this.disposeDelayMs === 0) { controlled.disposed = true return Promise.resolve() @@ -537,6 +539,64 @@ describe('dsh-workflow-workerthread', () => { expect(result.stopReason).toBe('cancelled') await handle.dispose() }, 15_000) + + it('dispose() on a wedged worker host-drives child disposal inside the grace: it returns with the children DISPOSED, not with their teardown still in flight', async () => { + const { ctx, parent, provider } = await setup({ + manual: true, + disposeDelayMs: 40, + config: { provider: 'stub', maxConcurrentAgents: 8, disposeGraceMs: 400 }, + }) + const handle = ctx.workflows.start({ + // Same shape as the wedged-cancel test above: the child's start RPC + // reaches the host, then the script seizes its worker's loop, so the + // worker can relay NO dispose RPC — the host's own dispose() drive is + // the only thing that can start (and finish) this child's disposal + // before the grace runs out. + ...scripted(` + agent('wedged child') + for (let i = 0; i < 20; i++) await null + const end = Date.now() + 1500 + while (Date.now() < end) {} + return 'raced' + `), + parent, + }) + await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + const before = Date.now() + await handle.dispose() + // Bounded by the grace (plus the terminate), never by the 1.5s spin. + expect(Date.now() - before).toBeLessThan(1200) + // Not a waitFor: dispose() resolving IS the quiescence claim — the slow + // child disposal must be complete, not merely started (before the + // host-driven drive, disposal only STARTED at the post-terminate reap, + // so dispose() returned with it still in flight). + expect(provider.runs[0]!.disposed).toBe(true) + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + }, 15_000) + + it('a live child disposed by the dispose() drive is disposed ONCE, and the worker\'s late dispose RPC still gets its ack (the script settles, not the grace)', async () => { + const { ctx, parent, provider } = await setup({ manual: true }) + const handle = ctx.workflows.start({ + ...scripted(` + await agent('long child') + return 'unreachable' + `), + parent, + }) + await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + const handleDispose = handle.dispose() + const result = await handle.result + // The script itself settled (the wrapper's own dispose RPC found the + // child already reaped host-side and was acked) — a missing ack would + // wedge the wrapper's finally until the 5s default grace force-settle. + expect(result.stopReason).toBe('cancelled') + expect(result.error).toContain('workflow disposed') + await handleDispose + expect(provider.runs[0]!.disposed).toBe(true) + // The memo: the host drive and the worker's RPC share one disposal. + expect(provider.runs[0]!.disposeCalls).toBe(1) + }) }) describe('worker death', () => { From 387f19c7f607f5e350e3ffd28ec2516b3a70c878 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 21:23:45 +0800 Subject: [PATCH 146/232] docs: regenerate the module graph for the ask-user merge --- docs/module-graph.md | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/docs/module-graph.md b/docs/module-graph.md index 5ef8313b4e..5bee74fae6 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -124,7 +124,9 @@ flowchart TD pkg_llm_replay --> pkg_llm pkg_llm_replay --> pkg_session pkg_tools --> pkg_agent + pkg_tools --> pkg_code_runtime pkg_tools --> pkg_llm + pkg_tools --> pkg_session pkg_tools --> pkg_system_prompt pkg_compact_basic --> pkg_agent pkg_compact_basic --> pkg_compact @@ -224,6 +226,7 @@ flowchart TD pkg_acp_agent --> pkg_agent_core pkg_acp_agent --> pkg_app_boot pkg_acp_agent --> pkg_session_persistence_jsonl + pkg_acp_agent --> pkg_tools pkg_acp_agent --> pkg_user_interaction pkg_stdio_agent --> pkg_agent pkg_stdio_agent --> pkg_agent_core @@ -232,6 +235,7 @@ flowchart TD pkg_stdio_agent --> pkg_session pkg_stdio_agent --> pkg_session_persistence_jsonl pkg_stdio_agent --> pkg_tool_ask_user + pkg_stdio_agent --> pkg_tools pkg_stdio_agent --> pkg_user_interaction ``` @@ -263,7 +267,7 @@ flowchart TD | [`hook-protocol`](../packages/hooks/hook-protocol) | `hooks` | [`bash`](../packages/bash/bash), [`session`](../packages/core/session) | | [`session-persistence`](../packages/session-persistence/session-persistence) | `session-persistence` | [`session`](../packages/core/session) | | [`llm-replay`](../packages/support/llm-replay) | `support` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | -| [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt) | +| [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`code-runtime`](../packages/code-runtime/code-runtime), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`compact-basic`](../packages/compact/compact-basic) | `compact` | [`agent`](../packages/core/agent), [`compact`](../packages/compact/compact), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | @@ -288,5 +292,5 @@ flowchart TD | [`subagent-mock`](../packages/support/subagent-mock) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent) | | [`subagent-fork`](../packages/subagent/subagent-fork) | `subagent` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | [`subagent-spawn`](../packages/subagent/subagent-spawn) | `subagent` | [`subagent`](../packages/subagent/subagent), [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | -| [`acp-agent`](../packages/ui/acp-agent) | `ui` | [`acp`](../packages/ui/acp), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`user-interaction`](../packages/ui/user-interaction) | -| [`stdio-agent`](../packages/ui/stdio-agent) | `ui` | [`agent`](../packages/core/agent), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`tool-ask-user`](../packages/ui/tool-ask-user), [`user-interaction`](../packages/ui/user-interaction) | +| [`acp-agent`](../packages/ui/acp-agent) | `ui` | [`acp`](../packages/ui/acp), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | +| [`stdio-agent`](../packages/ui/stdio-agent) | `ui` | [`agent`](../packages/core/agent), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`tool-ask-user`](../packages/ui/tool-ask-user), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | From 27f9c45e6a43dc13c52674e23b95e1bcbcddb6a8 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 21:38:49 +0800 Subject: [PATCH 147/232] docs: update budget --- scripts/doc-budgets.manifest.json | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/scripts/doc-budgets.manifest.json b/scripts/doc-budgets.manifest.json index 337fc57763..dd7f2c3e74 100644 --- a/scripts/doc-budgets.manifest.json +++ b/scripts/doc-budgets.manifest.json @@ -1,5 +1,5 @@ { - "AGENTS.md": 1691, + "AGENTS.md": 1693, "docs/AGENTS.md": 1315, "docs/architecture.md": 1640, "docs/cordis-primer.md": 550, @@ -7,5 +7,5 @@ "docs/testing.md": 800, "examples/AGENTS.md": 610, "packages/AGENTS.md": 450, - "packages/README.md": 610 + "packages/README.md": 632 } From f505776eee9b1d157086338e19bdd60699b804f5 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 22:04:52 +0800 Subject: [PATCH 148/232] fix: keep the program on the COMPLETED run_code card (agent review follow-up) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The previous commit put the fenced program only on the pending card — but an ACP tool_call_update's content REPLACES the card content (Zed truncates to the new list, crates/acp_thread update_fields), so the code vanished the moment the run completed and was effectively never visible. presentResult now re-carries the fenced program before the captured output via a shared fencedProgram helper; the completed card body is program + output, rendered by Zed as syntax-highlighted markdown behind the card disclosure. Goldens re-recorded (filtered this time: DSH_SNAPSHOT=record vitest -u -t mode-turn); unit test pins the two-block result content. --- .../snapshots/both-mode-turn/session.jsonl | 239 ++++++----- .../both-mode-turn/stdout.golden.jsonl | 43 +- .../snapshots/code-mode-turn/session.jsonl | 376 +++++++++--------- .../code-mode-turn/stdout.golden.jsonl | 104 ++--- packages/core/tools/src/code-mode.ts | 30 +- packages/core/tools/tests/code-mode.spec.ts | 13 +- 6 files changed, 422 insertions(+), 383 deletions(-) diff --git a/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl b/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl index c7bf7c3eba..e3f28fa3c6 100644 --- a/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl @@ -1,122 +1,117 @@ -{"type":"session","version":0,"id":"14b611ba-2cfd-46d6-bdcb-4f12a261f651","createdAt":1783600817605,"cwd":"/tmp/acp-snap-cwd-f5yZEg"} -{"type":"turn/start","seq":0,"time":1783600817609,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783600817610,"data":{"content":[{"type":"text","text":"Call the run_code tool (NOT the native bash tool directly) with a program that runs exactly `echo BOTH_OK` via tools.bash and returns its output. Then reply with that output only and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783600817612,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783600817613,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-f5yZEg.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's text output as a string. Tool arguments must be JSON-serializable.\n- A FAILED tool call rejects with an `Error` carrying the tool's error text — `try/catch` it to handle and continue.\n- Calls execute sequentially, even under `Promise.all`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ndeclare const tools: {\n /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. */\n bash(args: {\n /** The bash command to execute. */\n command: string;\n /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n description: string;\n /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n timeoutMs?: number;\n /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n workdir?: string;\n /** Run in the background and return a task id immediately. 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Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."}},"required":["code"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. 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It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} 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-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" stop"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"CODE"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"_"}}}} diff --git a/packages/core/tools/src/code-mode.ts b/packages/core/tools/src/code-mode.ts index 1ae26a5eb9..0175e5811e 100644 --- a/packages/core/tools/src/code-mode.ts +++ b/packages/core/tools/src/code-mode.ts @@ -135,6 +135,15 @@ function asRunCodeMeta(meta: unknown): RunCodeMeta | undefined { return m as unknown as RunCodeMeta } +/** + * Render a program as the markdown block the tool-call cards carry. + * @param code - the program text. + * @returns the ts-fenced markdown block. + */ +function fencedProgram(code: string): string { + return `\`\`\`ts\n${code}\n\`\`\`` +} + /** * Build the `run_code` {@link ToolDefinition}: one required `code` parameter, * executed through the dispatch bridge described in the module doc. The @@ -289,25 +298,32 @@ export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () => exec.signal?.removeEventListener('abort', onOuterAbort) } }, - // The program IS the call: surface it as an always-visible fenced block in - // the card body (rawInput alone lands in detail/expanded views many - // clients never open). Fence collisions are impossible to break rendering - // — a backtick run inside the program at worst ends the block early. + // The program IS the call: surface it as a fenced block in the card body + // (rawInput alone lands in detail/expanded views many clients never + // open). Fence collisions are impossible to break rendering — a backtick + // run inside the program at worst ends the block early. presentCall: args => ({ card: 'generic', title: 'Run code', kind: 'execute', rawInput: args.code, - content: [{ type: 'text', text: `\`\`\`ts\n${args.code}\n\`\`\`` }], + content: [{ type: 'text', text: fencedProgram(args.code) }], }), - presentResult: (_args, result) => { + // The result re-carries the program BEFORE the captured output: an ACP + // tool_call_update's `content` REPLACES the pending card's (clients + // truncate to the new list), so a result without the program would wipe + // it the moment the run completes. + presentResult: (args, result) => { const meta = asRunCodeMeta(result.meta) if (!meta) return undefined const output = meta.logs.map(entry => entry.text).join('\n') return { card: 'generic', title: `Run code (${meta.dispatches} tool call${meta.dispatches === 1 ? '' : 's'})`, - ...output.length > 0 ? { content: [{ type: 'text', text: output }] } : {}, + content: [ + { type: 'text', text: fencedProgram(args.code) }, + ...output.length > 0 ? [{ type: 'text' as const, text: output }] : [], + ], } }, }) diff --git a/packages/core/tools/tests/code-mode.spec.ts b/packages/core/tools/tests/code-mode.spec.ts index 092e0ed90e..73e4ffc946 100644 --- a/packages/core/tools/tests/code-mode.spec.ts +++ b/packages/core/tools/tests/code-mode.spec.ts @@ -461,10 +461,17 @@ describe('the run_code dispatch bridge', () => { isError: false, meta: { logs: [{ source: 'console', level: 'log', text: 'printed' }], dispatches: 1 }, }) - expect(view).toEqual({ card: 'generic', title: 'Run code (1 tool call)', content: [{ type: 'text', text: 'printed' }] }) - // Plural title, and no content when the program printed nothing. + // The result re-carries the fenced program before the output: the ACP + // update's content REPLACES the pending card's, so omitting it would + // wipe the code from the card the moment the run completes. + expect(view).toEqual({ + card: 'generic', + title: 'Run code (1 tool call)', + content: [{ type: 'text', text: '```ts\nreturn 1\n```' }, { type: 'text', text: 'printed' }], + }) + // Plural title, and the program alone when it printed nothing. expect(tool.presentResult?.({ code: 'x' }, { content: [], isError: false, meta: { logs: [], dispatches: 2 } })) - .toEqual({ card: 'generic', title: 'Run code (2 tool calls)' }) + .toEqual({ card: 'generic', title: 'Run code (2 tool calls)', content: [{ type: 'text', text: '```ts\nx\n```' }] }) // Replay with an unrecognizable meta falls back to the generic rendering. expect(tool.presentResult?.({ code: 'x' }, { content: [], isError: false, meta: { other: true } })).toBeUndefined() expect(tool.presentResult?.({ code: 'x' }, { content: [], isError: false })).toBeUndefined() From fe4da9244f53cdbf66bcd9ce3cdaa6fc09dca362 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 22:12:30 +0800 Subject: [PATCH 149/232] fix(tool-cordis): validate a dynamic tool's execute return shape after the realm round-trip MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The sandbox execute wrapper JSON round-tripped the return and blindly cast it to ToolExecuteReturn. A JSON-valid but wrong-shape return — a bare string, { content: 'ok' }, blocks without a type tag — sailed through: the registry spreads result.content, so { content: 'ok' } became ['o','k'], passed the session log's isJsonValue gate, and the DeepSeek serializer then flattened it to '(no output)' — silent corruption of the next model request and every replay, instead of a contained tool error. The round-tripped value is now shape-checked against the two ToolExecuteReturn forms (array of content blocks, or { content: blocks, meta? }); block checks are structural only (plain object + string type tag) because the ContentBlock union is merge-extensible. A wrong shape — and the formerly cryptic forgot-return/bare-string cases — fails that one call with a teaching error echoing a truncated preview of what was returned and the two valid forms. New specs pin the object-form pass-through (meta included), six rejection shapes, and the preview truncation; per-file 100% coverage holds. --- ...6-07-08-self-referential-cordis-toolset.md | 2 +- packages/cordis/tool-cordis/src/guard.ts | 74 +++++++++++++-- .../cordis/tool-cordis/tests/mount.spec.ts | 89 +++++++++++++++++++ 3 files changed, 158 insertions(+), 7 deletions(-) diff --git a/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md b/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md index 8a43c271c3..3ec6c75cbc 100644 --- a/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md +++ b/docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md @@ -30,7 +30,7 @@ Mount code runs via `vm.createContext` + `runInContext`, wrapped as the body of Sandbox globals are deliberately small: a tagged write-through `console` (`[cordis:] …` on the host stdout/stderr, so a listener that fires long after the mount call still lands somewhere the user sees), the `harness.defineTool` / `harness.registerTool` registration pair, the encoding primitives fresh vm contexts lack (`btoa`/`atob` as host closures over `Buffer` — a sanctioned exception, `Buffer` itself is never exposed — plus `TextEncoder`/`TextDecoder`), and callable traps over the withheld Node APIs (`require`, `setTimeout`/`setInterval`/`setImmediate`/`clearTimeout`/`clearInterval`, `fetch`) that throw a redirect naming the cordis alternative. Only function-shaped globals are trapped; `process` and `Buffer` stay `undefined` so a `typeof` feature probe stays inert rather than detonating a throwing accessor. -Three boundary mechanisms make model-written code behave correctly across the realm seam. **Dual-realm `instanceof`**: most objects sandbox code touches are host-realm (tool `args`, event payloads, service returns), so a plain `x instanceof Array` in the vm would silently be false — a per-sandbox prelude gives the vm realm's own constructors a `Symbol.hasInstance` that checks both the vm constructor and its host counterpart, patching only vm-realm globals. **Realm normalization of tool results**: objects built inside the vm carry the vm realm's `Object.prototype`, which the session log's append-time plainness check (`isJsonValue` in `dsh-session`, a prototype-identity comparison) rejects, so the sandbox's `harness.defineTool` JSON round-trips every `execute` return into the host realm — which also projects it onto exactly what the log durably stores. **A whitelist context façade**: the `ctx` a mounted plugin's `apply` receives is NOT the real context nor a pass-through proxy over it — it is a façade exposing only what a mount legitimately needs (`tools.register` marker-guarded, a read-only `tools.get`/`schemas`, `on`/`once`, `provide`, the timer helpers, and the services the plugin DECLARED in `inject`), with every framework-plumbing member (`root`, `parent`, `fiber`, `reflect`, `registry`, `extend`, `isolate`, `intercept`, `plugin`, `set`, `mixin`, …) denied with a teaching error. This closes an escape *class* rather than a single hole: a proxy that merely special-cased `ctx.tools` still handed back the raw context through `ctx.root`, `ctx.extend()`, or a service instance's `.ctx`, and mount code could then `ctx.root.tools.register({…})` to bypass the marker check and realm normalization — a raw vm-realm result then errors a real agent turn at the plainness check. The façade has no context-valued member to reach, and the one indirect leak (an injected-service method returning a `Context`) is rejected on the way back to sandbox code. Two narrower rules complete the surface. First, **service access requires an `inject` declaration**: reaching a service the mount did not declare is refused even when a global provider is live — otherwise a mount could depend on a provider cordis never sees, and unmounting that provider would neither park the consumer nor unwind the tools it registered, leaving a model-visible tool that fails only at execution time. Because the read is gated on the declaration, cross-mount `provide`/`inject` keeps its lifecycle guarantees (the plugin's own `inject` and the fiber's pending/active gating drive activation and unload); only the `apply`-time `ctx` surface is narrowed. Second, **`ctx.tools.get` returns a read-only schema view** (name/description/parameters), never the live `ToolDefinition` — handing back the definition would expose its `execute`, letting mount code call another tool directly and bypass `ToolRegistry.execute` and its pre/post-execute hooks and accounting; a mount that wants to invoke a tool must go through the registry, and one that wants to introspect gets the same view `schemas()` returns. +Three boundary mechanisms make model-written code behave correctly across the realm seam. **Dual-realm `instanceof`**: most objects sandbox code touches are host-realm (tool `args`, event payloads, service returns), so a plain `x instanceof Array` in the vm would silently be false — a per-sandbox prelude gives the vm realm's own constructors a `Symbol.hasInstance` that checks both the vm constructor and its host counterpart, patching only vm-realm globals. **Realm normalization of tool results**: objects built inside the vm carry the vm realm's `Object.prototype`, which the session log's append-time plainness check (`isJsonValue` in `dsh-session`, a prototype-identity comparison) rejects, so the sandbox's `harness.defineTool` JSON round-trips every `execute` return into the host realm — which also projects it onto exactly what the log durably stores — and then shape-checks it against the two `ToolExecuteReturn` forms, so a JSON-valid but wrong-shape return (a bare string, `{ content: 'ok' }`) fails that one call with a teaching error instead of entering the log as corrupt tool-result content. **A whitelist context façade**: the `ctx` a mounted plugin's `apply` receives is NOT the real context nor a pass-through proxy over it — it is a façade exposing only what a mount legitimately needs (`tools.register` marker-guarded, a read-only `tools.get`/`schemas`, `on`/`once`, `provide`, the timer helpers, and the services the plugin DECLARED in `inject`), with every framework-plumbing member (`root`, `parent`, `fiber`, `reflect`, `registry`, `extend`, `isolate`, `intercept`, `plugin`, `set`, `mixin`, …) denied with a teaching error. This closes an escape *class* rather than a single hole: a proxy that merely special-cased `ctx.tools` still handed back the raw context through `ctx.root`, `ctx.extend()`, or a service instance's `.ctx`, and mount code could then `ctx.root.tools.register({…})` to bypass the marker check and realm normalization — a raw vm-realm result then errors a real agent turn at the plainness check. The façade has no context-valued member to reach, and the one indirect leak (an injected-service method returning a `Context`) is rejected on the way back to sandbox code. Two narrower rules complete the surface. First, **service access requires an `inject` declaration**: reaching a service the mount did not declare is refused even when a global provider is live — otherwise a mount could depend on a provider cordis never sees, and unmounting that provider would neither park the consumer nor unwind the tools it registered, leaving a model-visible tool that fails only at execution time. Because the read is gated on the declaration, cross-mount `provide`/`inject` keeps its lifecycle guarantees (the plugin's own `inject` and the fiber's pending/active gating drive activation and unload); only the `apply`-time `ctx` surface is narrowed. Second, **`ctx.tools.get` returns a read-only schema view** (name/description/parameters), never the live `ToolDefinition` — handing back the definition would expose its `execute`, letting mount code call another tool directly and bypass `ToolRegistry.execute` and its pre/post-execute hooks and accounting; a mount that wants to invoke a tool must go through the registry, and one that wants to introspect gets the same view `schemas()` returns. Boundary errors are written around the mistakes models actually make (see [Consequences](#consequences) for how each was found), and the boundary normalizes rather than lectures wherever the input has exactly one meaning: schema `parameters` accept the JSON-Schema dialect models write by strong prior — the `{ type: 'object', properties, required: […] }` wrapper unwraps to the SchemaSpec DSL (the `required` array becoming per-property flags, at any nesting level), `type: 'integer'` maps to `number`, and `required: false` reads as optional — while genuinely meaningless input is rejected with the vocabulary enumerated (an unknown type lists the five valid ones; a non-boolean `required` names the rule). The remaining teaching errors: an unbalanced `});` closing gets the vm's offending source line plus a "code is a function body" reminder; TypeScript syntax gets the remove-annotations fix (detected on the failing line only, so an ` as ` inside a description string does not misfire); a forgotten `return` gets the two valid plugin forms; a Node built-in call gets the redirect to its cordis service; a tool-name collision on re-mount gets the unmount-first-then-remount recipe. diff --git a/packages/cordis/tool-cordis/src/guard.ts b/packages/cordis/tool-cordis/src/guard.ts index 90eaaec41b..f51faeb42e 100644 --- a/packages/cordis/tool-cordis/src/guard.ts +++ b/packages/cordis/tool-cordis/src/guard.ts @@ -27,8 +27,12 @@ * realm's `Object.prototype`, and the session log's append-time plainness check * (`dsh-session`'s `isJsonValue`, a prototype-identity comparison) rejects * foreign-realm data — so every dynamic tool's `execute` return is JSON - * round-tripped into the host realm before it reaches the registry, and the - * schema itself is rebuilt as fresh host-realm objects. And a malformed tool + * round-tripped into the host realm and shape-checked against the two + * `ToolExecuteReturn` forms before it reaches the registry (the registry + * trusts the shape blindly — it spreads `result.content`, so an unvalidated + * `{ content: 'ok' }` would enter the session log as `['o','k']` and silently + * corrupt the next model request), and the schema itself is rebuilt as fresh + * host-realm objects. And a malformed tool * schema must fail at REGISTRATION, not when a later request assembles it — so * dynamic tool registration accepts only definitions produced by the sandbox's * `harness.defineTool`, which normalizes `parameters` up front. @@ -137,14 +141,67 @@ function assertDynamicTool(tool: unknown): asserts tool is DynamicToolDefinition } } +/** + * Structurally a content block, checked AFTER the JSON round-trip: a plain + * object carrying a string `type` tag. Deliberately nothing deeper — the + * ContentBlock union is merge-extensible (an unknown tag must pass), and every + * downstream consumer dispatches on `type` and falls through unknowns. + */ +function isContentBlockShape(value: unknown): boolean { + return isPlainRecord(value) && typeof value.type === 'string' +} + +/** + * How much of an invalid execute return the teaching error echoes back — a + * huge blob would burn the model turn the error is trying to save. + */ +const RETURN_PREVIEW_LIMIT = 120 + +/** + * Compact JSON preview of an invalid execute return for the teaching error + * (`String(…)` for the un-stringifiable undefined case), truncated to + * {@link RETURN_PREVIEW_LIMIT}. + */ +function describeReturn(value: unknown): string { + // JSON.stringify is TYPED as always returning string, but it yields + // undefined for an undefined input (the routed forgot-return case) — the + // assertion widens the type back to the runtime truth. + const json = JSON.stringify(value) as string | undefined + if (json === undefined) return String(value) + return json.length > RETURN_PREVIEW_LIMIT ? `${json.slice(0, RETURN_PREVIEW_LIMIT)}…` : json +} + +/** + * Validate a round-tripped `execute` return against the two shapes + * {@link ToolExecuteReturn} allows: an ARRAY of content blocks, or + * `{ content: blocks, meta? }`. The registry trusts the shape blindly — it + * spreads `result.content`, so an unvalidated `{ content: 'ok' }` would enter + * the session log as `['o','k']` and silently corrupt the next model request — + * so a wrong shape fails THIS call with a teaching error instead. + */ +function assertExecuteReturn(value: unknown): ToolExecuteReturn { + if (Array.isArray(value) && value.every(isContentBlockShape)) { + return value as ToolExecuteReturn + } + if (isPlainRecord(value) && Array.isArray(value.content) && value.content.every(isContentBlockShape)) { + return value as ToolExecuteReturn + } + throw new Error( + `execute returned ${describeReturn(value)} — a tool's execute must return an ARRAY of content blocks, never a bare string:\n` + + ' ✓ return [{ type: \'text\', text: someString }]\n' + + ' ✓ return { content: [{ type: \'text\', text: someString }], meta: anyJsonValue }', + ) +} + /** * The `harness.defineTool` handed into the sandbox: the real DSL, with * `parameters` normalized into a fresh host-realm SchemaSpec (JSON-Schema * wrapper unwrapped, `integer` mapped, `required: false` dropped) and the * tool's `execute` return normalized into the host realm via a JSON round-trip - * (see the module doc). The round-trip also projects the return onto exactly - * what the log would durably store, so a non-JSON-serializable return surfaces - * as that one call's error instead of poisoning the turn. + * (see the module doc). The round-trip projects the return onto exactly what + * the log would durably store, and {@link assertExecuteReturn} then vets that + * projection — so a non-JSON-serializable OR wrong-shape return surfaces as + * that one call's teaching error instead of poisoning the turn. * @param options - the standard `defineTool` options; `parameters` may be the SchemaSpec DSL or a JSON-Schema-style wrapper. * @returns the marker-tagged definition `harness.registerTool` (and the guarded `ctx.tools.register`) accepts. */ @@ -155,7 +212,12 @@ export function sandboxDefineTool(options: Parameters[0]): To return markDynamicTool({ ...tool, async execute(args, exec) { - return JSON.parse(JSON.stringify(await execute(args, exec))) as ToolExecuteReturn + // JSON.stringify yields NO JSON for an undefined (or function/symbol) + // return despite its string-typed signature — route that into + // assertExecuteReturn's teaching error rather than letting JSON.parse + // throw its cryptic '"undefined" is not valid JSON'. + const json = JSON.stringify(await execute(args, exec)) as string | undefined + return assertExecuteReturn(json === undefined ? undefined : JSON.parse(json) as unknown) }, }) } diff --git a/packages/cordis/tool-cordis/tests/mount.spec.ts b/packages/cordis/tool-cordis/tests/mount.spec.ts index 7ee266ce30..fc29eeb2a0 100644 --- a/packages/cordis/tool-cordis/tests/mount.spec.ts +++ b/packages/cordis/tool-cordis/tests/mount.spec.ts @@ -60,6 +60,95 @@ describe('cordis_mount', () => { expect(isJsonValue({ content: reversed.content, isError: reversed.isError })).toBe(true) }) + it('threads the { content, meta } object return form through to the registry result', async () => { + const ctx = await setup() + await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'meta-return', + inject: ['tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'meta_tool', + description: 'attaches a private presentation payload', + parameters: {}, + async execute() { + return { content: [{ type: 'text', text: 'ok' }], meta: { kind: 'demo' } } + }, + })) + }, + } + `, + }) + const result = await call(ctx, 'meta_tool', {}) + expect(result.isError).toBe(false) + expect(text(result)).toBe('ok') + expect(result.meta).toEqual({ kind: 'demo' }) + }) + + it.each([ + ['a bare string', 'return \'ok\'', '"ok"'], + ['an object whose content is a string', 'return { content: \'ok\' }', '{"content":"ok"}'], + ['an array of non-objects', 'return [\'ok\']', '["ok"]'], + ['blocks missing the type tag', 'return [{ text: \'hi\' }]', '[{"text":"hi"}]'], + ['object-form blocks missing the type tag', 'return { content: [{ text: \'hi\' }] }', '{"content":[{"text":"hi"}]}'], + ['undefined — a forgotten return', 'return undefined', 'undefined'], + ])('rejects an execute return of %s as that one call\'s teaching error', async (_label, returnStatement, preview) => { + // The failure this prevents: the registry trusts the return shape + // (postExecute spreads result.content), so an unvalidated { content: 'ok' } + // would enter the session log as ['o','k'] and silently corrupt the next + // model request. The shape check turns it into THIS call's error instead — + // one well-formed text block the log and the model can digest. + const ctx = await setup() + await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'bad-return', + inject: ['tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'bad_return_tool', + description: 'returns a wrong shape', + parameters: {}, + async execute() { ${returnStatement} }, + })) + }, + } + `, + }) + const result = await call(ctx, 'bad_return_tool', {}) + expect(result.isError).toBe(true) + expect(result.content).toHaveLength(1) + expect(result.content[0]!.type).toBe('text') + expect(text(result)).toContain(`execute returned ${preview}`) + expect(text(result)).toContain('must return an ARRAY of content blocks') + expect(text(result)).toContain('✓ return { content: [{ type: \'text\', text: someString }], meta: anyJsonValue }') + }) + + it('truncates a huge invalid execute return in the teaching error', async () => { + const ctx = await setup() + await call(ctx, 'cordis_mount', { + code: ` + return { + name: 'huge-return', + inject: ['tools'], + apply(ctx) { + harness.registerTool(ctx, harness.defineTool({ + name: 'huge_return_tool', + description: 'returns a huge wrong shape', + parameters: {}, + async execute() { return 'x'.repeat(500) }, + })) + }, + } + `, + }) + const result = await call(ctx, 'huge_return_tool', {}) + expect(result.isError).toBe(true) + expect(text(result)).toContain('…') + expect(text(result)).not.toContain('x'.repeat(200)) + }) + it('accepts a JSON-Schema-style parameters wrapper and normalizes it to the DSL', async () => { // The dialect models write by strong prior: the { type:'object', // properties, required: […] } wrapper, `type: 'integer'`, and From 30bc7f6a1d04783b4969b0b290f3246bb12ef6e9 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 9 Jul 2026 22:41:57 +0800 Subject: [PATCH 150/232] fix: the run_code program IS the execute-card title (root cause: Zed shows nothing else) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Systematic trace through Zed (crates/agent_ui thread_view.rs + crates/acp_thread): kind:execute routes a tool call onto the terminal-card layout, whose header (render_collapsible_command) has NO disclosure toggle, whose body content renders only when is_open — a flag only a real terminal entity can ever set — and which suppresses the Raw Input view outright. Every prior attempt (rawInput, pending content, completed content) targeted slots that layout structurally never renders; the one slot it always shows is the TITLE, which said "Run code". codex-acp confirms the idiom: execute cards are titled with the command itself. presentCall now titles the card with the program (rawInput kept as the canonical input slot); presentResult omits the title — an update replaces only provided fields, so the program header persists — and carries the captured output as content. Goldens re-recorded; the unit test pins title-carries-program on both frames. --- .../snapshots/both-mode-turn/session.jsonl | 233 +++++------ .../both-mode-turn/stdout.golden.jsonl | 44 +- .../snapshots/code-mode-turn/session.jsonl | 395 +++++++++--------- .../code-mode-turn/stdout.golden.jsonl | 51 ++- packages/core/tools/src/code-mode.ts | 38 +- packages/core/tools/tests/code-mode.spec.ts | 23 +- 6 files changed, 391 insertions(+), 393 deletions(-) diff --git a/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl b/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl index e3f28fa3c6..afd1fa8e07 100644 --- a/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl @@ -1,117 +1,116 @@ -{"type":"session","version":0,"id":"7354d242-c6f9-4c36-9040-54c1fb295a6c","createdAt":1783604835700,"cwd":"/tmp/acp-snap-cwd-JyIozV"} -{"type":"turn/start","seq":0,"time":1783604835703,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783604835704,"data":{"content":[{"type":"text","text":"Call the run_code tool (NOT the native bash tool directly) with a program that runs exactly `echo BOTH_OK` via tools.bash and returns its output. Then reply with that output only and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783604835706,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783604835707,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-JyIozV.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's text output as a string. Tool arguments must be JSON-serializable.\n- A FAILED tool call rejects with an `Error` carrying the tool's error text — `try/catch` it to handle and continue.\n- Calls execute sequentially, even under `Promise.all`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ndeclare const tools: {\n /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. */\n bash(args: {\n /** The bash command to execute. */\n command: string;\n /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n description: string;\n /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n timeoutMs?: number;\n /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n workdir?: string;\n /** Run in the background and return a task id immediately. No timeout applies. */\n run_in_background?: boolean;\n }): Promise;\n /** Ask the executor to kill a running background bash task by task id. */\n bash_kill(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output. */\n bash_output(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Edit an existing UTF-8 text file by replacing literal text. */\n edit(args: {\n /** Path to edit, resolved by the filesystem backend. */\n file_path: string;\n /** Literal text to replace. Must match exactly. */\n old_string: string;\n /** Literal replacement text. Use an empty string to delete the match. */\n new_string: string;\n /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n replace_all?: boolean;\n }): Promise;\n /** Read a UTF-8 text file and return line-numbered content. */\n read(args: {\n /** Path to read, resolved by the filesystem backend. */\n file_path: string;\n /** 1-based first line to return. Defaults to 1. */\n offset?: number;\n /** Maximum number of lines to return. Defaults to 2000. */\n limit?: number;\n }): Promise;\n /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. 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{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" B"}}}} @@ -22,14 +27,14 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"_OK"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"`"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" returns"}}}} 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tool call)"}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_eZXVwOupAyCOXGgrtxXw7528","title":"const result = await tools.bash({ command: \"echo BOTH_OK\", description: \"Echo BOTH_OK\" });\nreturn result;","kind":"execute","status":"in_progress","rawInput":"const result = await tools.bash({ command: \"echo BOTH_OK\", description: \"Echo BOTH_OK\" });\nreturn result;"}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_eZXVwOupAyCOXGgrtxXw7528","status":"completed","content":[{"type":"content","content":{"type":"text","text":"BOTH_OK\n"}}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" result"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" output"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" is"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"B"}}}} @@ -38,16 +43,13 @@ 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{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"B"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"OTH"}}}} diff --git a/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl b/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl index 69cf7d1825..acc807da41 100644 --- a/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl @@ -1,195 +1,200 @@ -{"type":"session","version":0,"id":"80586ac0-3af1-4291-aef4-908d65fd3585","createdAt":1783604829168,"cwd":"/tmp/acp-snap-cwd-7XHEGB"} -{"type":"turn/start","seq":0,"time":1783604829173,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} 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Then reply with that joined string only and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783604829176,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783604829176,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-7XHEGB.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. 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+{"type":"assistant/chunk","seq":181,"time":1783607327868,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" that"}}} +{"type":"assistant/chunk","seq":182,"time":1783607327868,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" string"}}} +{"type":"assistant/chunk","seq":183,"time":1783607327868,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"."}}} +{"type":"assistant/chunk","seq":184,"time":1783607327868,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":1,"blockType":"text"}}} +{"type":"assistant/chunk","seq":185,"time":1783607327868,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"CODE"}}} +{"type":"assistant/chunk","seq":186,"time":1783607327868,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"_"}}} +{"type":"assistant/chunk","seq":187,"time":1783607327901,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"ONE"}}} +{"type":"assistant/chunk","seq":188,"time":1783607327901,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"+"}}} +{"type":"assistant/chunk","seq":189,"time":1783607327901,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"CODE"}}} +{"type":"assistant/chunk","seq":190,"time":1783607327901,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"_T"}}} +{"type":"assistant/chunk","seq":191,"time":1783607327901,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"WO"}}} +{"type":"assistant/chunk","seq":192,"time":1783607327901,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The result is exactly what was requested: \"CODE_ONE+CODE_TWO\". Let me reply with just that string."}}}} +{"type":"assistant/chunk","seq":193,"time":1783607327901,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"CODE_ONE+CODE_TWO"}}}} +{"type":"assistant/chunk","seq":194,"time":1783607327901,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":140,"outputTokens":33,"cacheReadTokens":2176,"reasoningTokens":25}}}} +{"type":"assistant/chunk","seq":195,"time":1783607327902,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":196,"time":1783607327902,"data":{"turn":1,"step":2,"content":[{"type":"reasoning","text":"The result is exactly what was requested: \"CODE_ONE+CODE_TWO\". Let me reply with just that string."},{"type":"text","text":"CODE_ONE+CODE_TWO"}],"usage":{"inputTokens":140,"outputTokens":33,"cacheReadTokens":2176,"reasoningTokens":25}},"sourceEventSeqs":[158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195],"surfaceOp":"append"} +{"type":"step/end","seq":197,"time":1783607327902,"data":{"turn":1,"step":2}} +{"type":"turn/end","seq":198,"time":1783607327902,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/code-mode-turn/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/code-mode-turn/stdout.golden.jsonl index ef6a5502a5..ff20b92fc5 100644 --- a/examples/acp-agent/tests/snapshots/code-mode-turn/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/code-mode-turn/stdout.golden.jsonl @@ -8,38 +8,39 @@ 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{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" that"}}}} @@ -61,31 +62,35 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"Let"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" me"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" write"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" this"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" code"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_EvAw7ZWOeySn2jCErZPo6450","title":"Run code","kind":"execute","status":"in_progress","rawInput":"const out1 = await tools.bash({ command: \"echo CODE_ONE\", description: \"Echo CODE_ONE\" });\nconst out2 = await tools.bash({ command: \"echo CODE_TWO\", description: \"Echo CODE_TWO\" });\nreturn out1.trim() + \"+\" + out2.trim();","content":[{"type":"content","content":{"type":"text","text":"```ts\nconst out1 = await tools.bash({ command: \"echo CODE_ONE\", description: \"Echo CODE_ONE\" });\nconst out2 = await tools.bash({ command: \"echo CODE_TWO\", description: \"Echo CODE_TWO\" });\nreturn out1.trim() + \"+\" + out2.trim();\n```"}}]}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_EvAw7ZWOeySn2jCErZPo6450","status":"completed","content":[{"type":"content","content":{"type":"text","text":"```ts\nconst out1 = await tools.bash({ command: \"echo CODE_ONE\", description: \"Echo CODE_ONE\" });\nconst out2 = await tools.bash({ command: \"echo CODE_TWO\", description: \"Echo CODE_TWO\" });\nreturn out1.trim() + \"+\" + out2.trim();\n```"}}],"title":"Run code (2 tool calls)"}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_Km1jhimv1ZVR4qbgjxAo9869","title":"const r1 = await tools.bash({ command: \"echo CODE_ONE\", description: \"Echo CODE_ONE\" });\nconst r2 = await tools.bash({ command: \"echo CODE_TWO\", description: \"Echo CODE_TWO\" });\nreturn r1.trim() + \"+\" + r2.trim();","kind":"execute","status":"in_progress","rawInput":"const r1 = await tools.bash({ command: \"echo CODE_ONE\", description: \"Echo CODE_ONE\" });\nconst r2 = await tools.bash({ command: \"echo CODE_TWO\", description: \"Echo CODE_TWO\" });\nreturn r1.trim() + \"+\" + r2.trim();"}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_Km1jhimv1ZVR4qbgjxAo9869","status":"completed","content":[{"type":"content","content":{"type":"text","text":"CODE_ONE+CODE_TWO"}}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" output"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" result"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" is"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" exactly"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" what"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" was"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" requested"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":":"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" CODE"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"CODE"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"_"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONE"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"+"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"CODE"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"_T"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"WO"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" I"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"'ll"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\"."}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" Let"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" me"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" just"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" that"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" string"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"CODE"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"_"}}}} diff --git a/packages/core/tools/src/code-mode.ts b/packages/core/tools/src/code-mode.ts index 0175e5811e..a6ef7a271a 100644 --- a/packages/core/tools/src/code-mode.ts +++ b/packages/core/tools/src/code-mode.ts @@ -135,15 +135,6 @@ function asRunCodeMeta(meta: unknown): RunCodeMeta | undefined { return m as unknown as RunCodeMeta } -/** - * Render a program as the markdown block the tool-call cards carry. - * @param code - the program text. - * @returns the ts-fenced markdown block. - */ -function fencedProgram(code: string): string { - return `\`\`\`ts\n${code}\n\`\`\`` -} - /** * Build the `run_code` {@link ToolDefinition}: one required `code` parameter, * executed through the dispatch bridge described in the module doc. The @@ -298,32 +289,29 @@ export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () => exec.signal?.removeEventListener('abort', onOuterAbort) } }, - // The program IS the call: surface it as a fenced block in the card body - // (rawInput alone lands in detail/expanded views many clients never - // open). Fence collisions are impossible to break rendering — a backtick - // run inside the program at worst ends the block early. + // The program IS the title, the way command tools title their cards with + // the command: an execute-card's title is the one slot an ACP client + // always shows (Zed's execute cards render no body content and no raw + // input without a real terminal attached), so anywhere else the code + // would be invisible. Multi-line titles are the execute-card idiom — + // capable clients render them whole; others truncate to the first line + // and still hold the full program in rawInput. presentCall: args => ({ card: 'generic', - title: 'Run code', + title: args.code, kind: 'execute', rawInput: args.code, - content: [{ type: 'text', text: fencedProgram(args.code) }], }), - // The result re-carries the program BEFORE the captured output: an ACP - // tool_call_update's `content` REPLACES the pending card's (clients - // truncate to the new list), so a result without the program would wipe - // it the moment the run completes. - presentResult: (args, result) => { + // Title omitted on the result: an update replaces only the fields it + // carries, so the pending card's program title persists through + // completion; the captured output rides as body content. + presentResult: (_args, result) => { const meta = asRunCodeMeta(result.meta) if (!meta) return undefined const output = meta.logs.map(entry => entry.text).join('\n') return { card: 'generic', - title: `Run code (${meta.dispatches} tool call${meta.dispatches === 1 ? '' : 's'})`, - content: [ - { type: 'text', text: fencedProgram(args.code) }, - ...output.length > 0 ? [{ type: 'text' as const, text: output }] : [], - ], + ...output.length > 0 ? { content: [{ type: 'text' as const, text: output }] } : {}, } }, }) diff --git a/packages/core/tools/tests/code-mode.spec.ts b/packages/core/tools/tests/code-mode.spec.ts index 73e4ffc946..f7f4b058d8 100644 --- a/packages/core/tools/tests/code-mode.spec.ts +++ b/packages/core/tools/tests/code-mode.spec.ts @@ -444,34 +444,33 @@ describe('the run_code dispatch bridge', () => { expect((result.content[0] as { text: string }).text).toContain('requires a code runtime') }) - it('presents the pending call as a generic execute card carrying the program, and the result with the captured output', async () => { + it('presents the PROGRAM as the execute-card title on both call and result (the one slot execute cards always show)', async () => { const { ctx } = await setup({ mode: 'code' }) const tool = ctx.tools.get(RUN_CODE_NAME)! + // The program IS the title, mirroring how command tools title their cards + // with the command: an ACP client's execute-card header is the only + // always-visible slot (Zed renders no body content and no raw input for + // execute-kind cards without a real terminal). expect(tool.presentCall?.({ code: 'return 1' })).toEqual({ card: 'generic', - title: 'Run code', + title: 'return 1', kind: 'execute', rawInput: 'return 1', - // The program rides the card BODY as a fenced block — visible in ACP - // clients that never open the rawInput detail view. - content: [{ type: 'text', text: '```ts\nreturn 1\n```' }], }) const view = tool.presentResult?.({ code: 'return 1' }, { content: [{ type: 'text', text: 'model-facing' }], isError: false, meta: { logs: [{ source: 'console', level: 'log', text: 'printed' }], dispatches: 1 }, }) - // The result re-carries the fenced program before the output: the ACP - // update's content REPLACES the pending card's, so omitting it would - // wipe the code from the card the moment the run completes. + // The result omits the title — an update replaces only provided fields, + // so the pending card's program title persists through completion. expect(view).toEqual({ card: 'generic', - title: 'Run code (1 tool call)', - content: [{ type: 'text', text: '```ts\nreturn 1\n```' }, { type: 'text', text: 'printed' }], + content: [{ type: 'text', text: 'printed' }], }) - // Plural title, and the program alone when it printed nothing. + // No captured output → no content either; everything pending persists. expect(tool.presentResult?.({ code: 'x' }, { content: [], isError: false, meta: { logs: [], dispatches: 2 } })) - .toEqual({ card: 'generic', title: 'Run code (2 tool calls)', content: [{ type: 'text', text: '```ts\nx\n```' }] }) + .toEqual({ card: 'generic' }) // Replay with an unrecognizable meta falls back to the generic rendering. expect(tool.presentResult?.({ code: 'x' }, { content: [], isError: false, meta: { other: true } })).toBeUndefined() expect(tool.presentResult?.({ code: 'x' }, { content: [], isError: false })).toBeUndefined() From 64d0703c408016999948fd3bafabf207e652ed01 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 23:05:43 +0800 Subject: [PATCH 151/232] workflow: host-guarantee the agent-start/agent-end pairing on every stop path agent-end was worker-authored only, so a start already forwarded to observers lost its paired end whenever the worker could no longer speak - the grace force-settle terminating a wedged script, or an unexpected worker death - stranding progress consumers with agents that never finish (ds-review-bot finding on #233). The host now keeps a ledger of forwarded starts and funnels every agent-end through one gate: worker-reported ends pair (and clear) their entry, and both termination paths drain the remainder as synthesized 'cancelled' ends BEFORE the run settles, so ends always precede workflow/end. A real settlement racing the force-settle loses to the synthesized cancellation - the same first-wins override onResult applies to the run's own result. --- docs/cordis-catalog/events.md | 6 +- docs/cordis-catalog/services.md | 2 +- .../workflow/workflow-workerthread/README.md | 2 +- .../workflow-workerthread/src/host.ts | 54 ++++++++- .../tests/workflow-workerthread.spec.ts | 106 ++++++++++++++++++ packages/workflow/workflow/src/index.ts | 5 +- 6 files changed, 164 insertions(+), 11 deletions(-) diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 02e12359ac..28dc1f17f5 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -365,13 +365,13 @@ Source: [`packages/core/tools/src/index.ts:77`](../../packages/core/tools/src/in ### `workflow/agent-end` — emit -One `agent()` call settled (clean result, child failure, or run cancellation). Paired with Events['workflow/agent-start']. +One `agent()` call settled (clean result, child failure, or run cancellation). Paired with Events['workflow/agent-start'] by `agent.seq`, exactly once per started call on every stop path — on an engine termination path (a worker killed past its grace) the end is engine-synthesized with outcome `'cancelled'`. ```ts cordis-catalog 'workflow/agent-end'(info: WorkflowRunInfo, agent: WorkflowAgentEndInfo): void ``` -Source: [`packages/workflow/workflow/src/index.ts:93`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:96`](../../packages/workflow/workflow/src/index.ts) ### `workflow/agent-start` — emit @@ -391,7 +391,7 @@ A workflow run settled (any stop reason). Fired when WorkflowRun.result resolves 'workflow/end'(info: WorkflowRunInfo, result: WorkflowResultInfo): void ``` -Source: [`packages/workflow/workflow/src/index.ts:103`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:106`](../../packages/workflow/workflow/src/index.ts) ### `workflow/log` — emit diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 493381d1c9..0622e56a60 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -276,7 +276,7 @@ Semantics every implementation must honor: abstract start(request: WorkflowStartRequest): WorkflowRun ``` -Source: [`packages/workflow/workflow/src/index.ts:207`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:210`](../../packages/workflow/workflow/src/index.ts) ## Inherited `ctx` members (cordis core + loader/hmr/timer) diff --git a/packages/workflow/workflow-workerthread/README.md b/packages/workflow/workflow-workerthread/README.md index dc8859d351..2d98273ae0 100644 --- a/packages/workflow/workflow-workerthread/README.md +++ b/packages/workflow/workflow-workerthread/README.md @@ -32,7 +32,7 @@ Values LEAVING the script (hook options/schemas, the script's return) are materi Per-run limits: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` posts the cancel to the worker (its hooks start throwing `CANCELLED`; the script dies at its next await) and cancels every host-side child NOW on **both seam channels** — the shared request signal aborts AND each registered child's explicit `cancel()` is called host-side, because the seam leaves a provider free to honor either channel and a worker wedged in a synchronous spin could not relay its own per-child cancel RPCs (those later land as idempotent no-ops). The grace then arms: a run still unsettled `disposeGraceMs` later force-settles `cancelled` and the worker is **terminated**. A cancellation that lands before the body runs (the ready→go handshake) reports `cancelled` without executing anything; a worker `result` racing an in-flight host cancellation reports `cancelled` too (first-wins settlement — the seam-visible result had not settled when cancellation was requested); post-cancel `phase`/`log` narration is suppressed host-side, while cancelled children still deliver their paired `agent-end`. -A worker that dies unexpectedly (an OOM, a script reaching `process.exit` through the documented vm escape) settles the run `stopReason: 'error'` with the exit diagnostics — or `'cancelled'` when a cancel was in flight — and the host-side child registry is what winds every surviving child down. `dispose()` = cancel + immediate host-driven disposal of every registered child (a wedged worker can relay no dispose RPC, so child teardown overlaps the grace instead of starting after it; the worker's own dispose RPCs join the same per-child disposal) + bounded wait (result, then child-registry quiescence, capped by the grace) + unconditional `worker.terminate()`: the thread never outlives its run. Once a run settles, stray children a script fired without awaiting are cancelled too, and `dispose()` waits for their disposal (bounded by the grace) before returning. +A worker that dies unexpectedly (an OOM, a script reaching `process.exit` through the documented vm escape) settles the run `stopReason: 'error'` with the exit diagnostics — or `'cancelled'` when a cancel was in flight — and the host-side child registry is what winds every surviving child down. `dispose()` = cancel + immediate host-driven disposal of every registered child (a wedged worker can relay no dispose RPC, so child teardown overlaps the grace instead of starting after it; the worker's own dispose RPCs join the same per-child disposal) + bounded wait (result, then child-registry quiescence, capped by the grace) + unconditional `worker.terminate()`: the thread never outlives its run. Once a run settles, stray children a script fired without awaiting are cancelled too, and `dispose()` waits for their disposal (bounded by the grace) before returning. `agent-start`/`agent-end` pairing is host-guaranteed the same way: forwarded starts live in a ledger, worker-reported ends pair them on the graceful paths, and the termination paths (grace force-settle, worker death) synthesize the missing ends (outcome `cancelled`) before the run settles — a start still in flight across the force-settle can surface after `workflow/end`, immediately paired the same way. **Engine-specific limitations**: worker startup is paid per run; on a termination path `agentsStarted` reports the HOST-observed count (accepted `child-start`s — calls still queued worker-side for a concurrency slot are unknowable then); and a returned promise or thenable resolves per JavaScript semantics BEFORE materialization — that is what makes an un-awaited `return agent('x')` work — with the value-boundary guard applying to the resolution. diff --git a/packages/workflow/workflow-workerthread/src/host.ts b/packages/workflow/workflow-workerthread/src/host.ts index c512c15dee..28db34f097 100644 --- a/packages/workflow/workflow-workerthread/src/host.ts +++ b/packages/workflow/workflow-workerthread/src/host.ts @@ -22,7 +22,11 @@ * survivor when the worker dies or is terminated mid-flight. The three * paths share ONE disposal per child (memoized by callId; the seam's * dispose() is idempotent anyway, the memo keeps the bookkeeping and the - * containment warn single). On a termination path `agentsStarted` reports the + * containment warn single). Lifecycle pairing is host-guaranteed the same + * way: every forwarded `agent-start` lives in a ledger, and a start the + * dead or terminated worker never paired is closed by a synthesized + * `agent-end` (outcome `'cancelled'`) before the run settles. On a + * termination path `agentsStarted` reports the * HOST-observed count (accepted `child-start` messages) — `agent()` calls * still queued worker-side for a concurrency slot are unknowable then; the * worker's own count rides the result message on every graceful path. @@ -37,7 +41,7 @@ import type { Context } from 'cordis' import type { Agent } from '@deepseek-ai/dsh-agent' import { assertNever } from '@deepseek-ai/dsh-llm' import type { SubagentRun } from '@deepseek-ai/dsh-subagent' -import type { WorkflowMeta, WorkflowResult, WorkflowRun, WorkflowRunId } from '@deepseek-ai/dsh-workflow' +import type { WorkflowAgentEndInfo, WorkflowAgentInfo, WorkflowMeta, WorkflowResult, WorkflowRun, WorkflowRunId } from '@deepseek-ai/dsh-workflow' import { renderThrown } from './realm.ts' import type { ExecutionObserver } from './runtime.ts' import { HostToWorkerType, WorkerToHostType } from './protocol.ts' @@ -92,6 +96,8 @@ export class WorkerRun implements WorkflowRun { private readonly children = new Map() /** In-flight child disposals by callId — the memo that gives every path (worker RPC, dispose(), reap) ONE shared disposal per child. */ private readonly childDisposals = new Map>() + /** Started-but-not-ended agents by seq — the pairing ledger the HOST guarantees (see {@link endAgent}). */ + private readonly liveAgents = new Map() private readonly quiescenceWaiters: (() => void)[] = [] /** The per-run abort fanout every child start request carries. */ private readonly controller = new AbortController() @@ -155,6 +161,10 @@ export class WorkerRun implements WorkflowRun { // ChildCancel relay (those later RPCs land as idempotent no-ops). for (const run of this.children.values()) run.cancel(this.cancelReason) this.graceTimer = setTimeout(() => { + // The worker may no longer speak (it is about to be terminated): pair + // every stranded start before the run settles, so ends precede + // workflow/end. + this.endStrandedAgents() this.settleResult(this.cancelledResult(this.hostStarted)) void this.worker.terminate() }, this.disposeGraceMs) @@ -225,13 +235,15 @@ export class WorkerRun implements WorkflowRun { if (this.cancelReason === undefined) this.observer.log(message.message) break case WorkerToHostType.AgentStart: + this.liveAgents.set(message.info.seq, message.info) this.observer.agentStart(message.info) break case WorkerToHostType.AgentEnd: // NOT suppressed on cancel: cancelled children report their paired - // agent-end with outcome 'cancelled' (the one-pair-per-started-child - // contract holds on every stop path). - this.observer.agentEnd(message.info) + // agent-end with outcome 'cancelled'. The gate (with the termination + // paths' synthesis) is what makes the one-pair-per-started-child + // contract hold on every stop path. + this.endAgent(message.info) break case WorkerToHostType.ChildStart: this.onChildStart(message.callId, message.request) @@ -373,6 +385,10 @@ export class WorkerRun implements WorkflowRun { private onWorkerDeath(message: string): void { // Whatever the worker left behind must not leak — abort + dispose it all. if (this.children.size > 0) this.reapChildren('workflow worker gone') + // The thread is gone: no more worker-authored agent-ends can arrive — + // pair every stranded start (a start that crossed between the grace + // force-settle and this exit included) before the run settles. + this.endStrandedAgents() // settleResult no-ops on an already-settled run (the expected exit after // a dispose's terminate lands here too). if (this.cancelReason !== undefined) { @@ -382,6 +398,34 @@ export class WorkerRun implements WorkflowRun { this.settleResult({ value: null, stopReason: 'error', error: message, agentsStarted: this.hostStarted }) } + /** + * The single agent-end emission gate: forwards `end` iff its start is still + * unpaired in the ledger, so every forwarded `workflow/agent-start` gets + * EXACTLY one `workflow/agent-end` — the worker's own report where it can + * speak, a host-synthesized one where it cannot ({@link endStrandedAgents}). + * @param end - the settlement to emit (worker-reported or synthesized). + */ + private endAgent(end: WorkflowAgentEndInfo): void { + /* v8 ignore next -- a real end still in flight across the grace force-settle: not orderable in-process */ + if (!this.liveAgents.delete(end.seq)) return + this.observer.agentEnd(end) + } + + /** + * Synthesize the missing `agent-end` for every started-but-unpaired agent, + * outcome `'cancelled'`: the reap cancels every child, and a real + * settlement racing the force-settle loses to the cancellation — the same + * first-wins override {@link onResult} applies to the run's own result. + * Called where the worker can no longer speak (the grace force-settle, + * worker death), BEFORE settleResult, so the paired ends reach observers + * before `workflow/end`. + */ + private endStrandedAgents(): void { + for (const info of [...this.liveAgents.values()]) { + this.endAgent({ ...info, outcome: 'cancelled' }) + } + } + private cancelledResult(agentsStarted: number): WorkflowResult { // cancel() is the only writer of cancelReason and every caller checks it // first; the fallback guards the type, not a reachable path. diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index c1c26dcf0f..eb50ec1121 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -597,6 +597,73 @@ describe('dsh-workflow-workerthread', () => { // The memo: the host drive and the worker's RPC share one disposal. expect(provider.runs[0]!.disposeCalls).toBe(1) }) + + it('the grace force-settle pairs every stranded start: a host-synthesized cancelled agent-end lands before workflow/end', async () => { + const { ctx, parent, provider } = await setup({ manual: true, config: { provider: 'stub', maxConcurrentAgents: 8, disposeGraceMs: 300 } }) + const ends: { seq: number; outcome: string }[] = [] + const order: string[] = [] + ctx.on('workflow/agent-start', (_info, agent) => { order.push(`start:${agent.seq}`) }) + ctx.on('workflow/agent-end', (_info, agent) => { + ends.push({ seq: agent.seq, outcome: agent.outcome }) + order.push(`end:${agent.seq}`) + }) + ctx.on('workflow/end', () => { order.push('run-end') }) + const handle = ctx.workflows.start({ + // 'slow' starts and its agent-start crosses to observers (the awaited + // 'fast' call keeps the worker loop turning), then the script seizes + // the loop: the wedged worker can never author slow's agent-end — + // only the host's ledger can close the pair. + ...scripted(` + const p = agent('slow') + await agent('fast') + const end = Date.now() + 1500 + while (Date.now() < end) {} + return 'raced' + `), + parent, + }) + await vi.waitFor(() => { expect(order.filter(entry => entry.startsWith('start:')).length).toBe(2) }) + const fast = provider.runs.find(run => (run.request.prompt[0] as { text?: string }).text === 'fast')! + fast.settle(text('fast done')) + handle.cancel('stop now') + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + // fast's end is the worker's own report; slow's is host-synthesized at + // the force-settle — exactly one end per started seq, no third event. + expect(ends).toEqual([ + { seq: 2, outcome: 'completed' }, + { seq: 1, outcome: 'cancelled' }, + ]) + // Both ends reached observers BEFORE workflow/end: a progress consumer + // can finalize its state at run-end without dangling agents. + expect(order.indexOf('run-end')).toBe(order.length - 1) + await handle.dispose() + }, 15_000) + + it('graceful cancellation keeps pairing worker-authored: exactly one agent-end per start, nothing synthesized on top', async () => { + const { ctx, parent, provider } = await setup({ manual: true }) + const ends: { seq: number; outcome: string }[] = [] + const order: string[] = [] + ctx.on('workflow/agent-end', (_info, agent) => { + ends.push({ seq: agent.seq, outcome: agent.outcome }) + order.push(`end:${agent.seq}`) + }) + ctx.on('workflow/end', () => { order.push('run-end') }) + const handle = ctx.workflows.start({ + ...scripted("await parallel([() => agent('a'), () => agent('b')])\nreturn 'unreachable'"), + parent, + }) + await vi.waitFor(() => { expect(provider.runs.length).toBe(2) }) + handle.cancel('user stop') + const result = await handle.result + expect(result.stopReason).toBe('cancelled') + // The live worker reported both pairs itself; the ledger must not add + // a synthesized duplicate on any path that settles inside the grace. + expect(ends.map(end => end.outcome)).toEqual(['cancelled', 'cancelled']) + expect(new Set(ends.map(end => end.seq)).size).toBe(2) + expect(order.indexOf('run-end')).toBe(order.length - 1) + await handle.dispose() + }) }) describe('worker death', () => { @@ -669,6 +736,45 @@ describe('dsh-workflow-workerthread', () => { await handle.dispose() }, 15_000) + it('a worker death pairs every stranded start: the synthesized cancelled agent-end precedes the error workflow/end', async () => { + const { ctx, parent, provider } = await setup({ manual: true }) + const ends: { seq: number; outcome: string }[] = [] + const order: string[] = [] + ctx.on('workflow/agent-start', (_info, agent) => { order.push(`start:${agent.seq}`) }) + ctx.on('workflow/agent-end', (_info, agent) => { + ends.push({ seq: agent.seq, outcome: agent.outcome }) + order.push(`end:${agent.seq}`) + }) + ctx.on('workflow/end', () => { order.push('run-end') }) + const handle = ctx.workflows.start({ + // Same choreography as the force-settle pairing test, but the worker + // DIES (the documented vm escape) instead of being terminated: the + // exit path must close slow's pair from the ledger too. The escaped + // setTimeout lets the already-posted messages flush before the kill. + ...scripted(` + const p = agent('slow') + await agent('fast') + const proc = ${ESCAPE} + const st = globalThis.constructor.constructor('return setTimeout')() + await new Promise(resolve => st(resolve, 150)) + proc.exit(7) + `), + parent, + }) + await vi.waitFor(() => { expect(order.filter(entry => entry.startsWith('start:')).length).toBe(2) }) + const fast = provider.runs.find(run => (run.request.prompt[0] as { text?: string }).text === 'fast')! + fast.settle(text('fast done')) + const result = await handle.result + expect(result.stopReason).toBe('error') + expect(result.error).toContain('exit code 7') + expect(ends).toEqual([ + { seq: 2, outcome: 'completed' }, + { seq: 1, outcome: 'cancelled' }, + ]) + expect(order.indexOf('run-end')).toBe(order.length - 1) + await handle.dispose() + }, 15_000) + it('a dispose ack racing the worker death is dropped, not crashed (post after exit)', async () => { // Slow child disposal: the ack resolves only AFTER the worker died, so // it has nowhere to go and must be dropped silently (the workerGone diff --git a/packages/workflow/workflow/src/index.ts b/packages/workflow/workflow/src/index.ts index 6c2b797362..91caa314dc 100644 --- a/packages/workflow/workflow/src/index.ts +++ b/packages/workflow/workflow/src/index.ts @@ -85,7 +85,10 @@ declare module 'cordis' { 'workflow/agent-start'(info: WorkflowRunInfo, agent: WorkflowAgentInfo): void /** * One `agent()` call settled (clean result, child failure, or run - * cancellation). Paired with {@link Events['workflow/agent-start']}. + * cancellation). Paired with {@link Events['workflow/agent-start']} by + * `agent.seq`, exactly once per started call on every stop path — on an + * engine termination path (a worker killed past its grace) the end is + * engine-synthesized with outcome `'cancelled'`. * @param info - the run's identity snapshot. * @param agent - the call identity plus its outcome. * @mode emit From 7d3b16c1845ee10386df8577156ed841b94ccd8b Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 23:10:28 +0800 Subject: [PATCH 152/232] docs: update budget / catalog --- docs/event-producer-consumer.md | 4 ++-- scripts/doc-budgets.manifest.json | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index b266089b38..a677e2a24a 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -36,9 +36,9 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:97`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`timeout-policy`](../packages/timeout/timeout-policy) | | `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:113`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | | `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:77`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `workflow/agent-end` | `emit` | [`packages/workflow/workflow/src/index.ts:93`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | +| `workflow/agent-end` | `emit` | [`packages/workflow/workflow/src/index.ts:96`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/agent-start` | `emit` | [`packages/workflow/workflow/src/index.ts:85`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | -| `workflow/end` | `emit` | [`packages/workflow/workflow/src/index.ts:103`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | +| `workflow/end` | `emit` | [`packages/workflow/workflow/src/index.ts:106`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/log` | `emit` | [`packages/workflow/workflow/src/index.ts:77`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/phase` | `emit` | [`packages/workflow/workflow/src/index.ts:70`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/start` | `emit` | [`packages/workflow/workflow/src/index.ts:62`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | diff --git a/scripts/doc-budgets.manifest.json b/scripts/doc-budgets.manifest.json index 49535f0efb..a5261698a2 100644 --- a/scripts/doc-budgets.manifest.json +++ b/scripts/doc-budgets.manifest.json @@ -1,7 +1,7 @@ { "AGENTS.md": 1802, "docs/AGENTS.md": 1315, - "docs/architecture.md": 1640, + "docs/architecture.md": 1642, "docs/cordis-primer.md": 550, "docs/defensive-patterns.md": 550, "docs/testing.md": 800, From bf1ab14b789e7efeeb1057eba042f1202b084de5 Mon Sep 17 00:00:00 2001 From: Turtle Date: Thu, 9 Jul 2026 23:48:29 +0800 Subject: [PATCH 153/232] a human touch get some headroom --- docs/AGENTS.md | 7 ++++--- docs/architecture.md | 47 +++++++++++++++++++++++++------------------ docs/cordis-primer.md | 30 +++++++++++++-------------- 3 files changed, 46 insertions(+), 38 deletions(-) diff --git a/docs/AGENTS.md b/docs/AGENTS.md index 771e30dcc6..118c535874 100644 --- a/docs/AGENTS.md +++ b/docs/AGENTS.md @@ -1,6 +1,6 @@ # AGENTS.md — The documentation standard -This file is the contract for every Markdown surface in the repo: each tier's job, the writing rules, and the word budgets the `verify-doc-budgets` gate enforces. The audit/apply workflow is the [dsh-doc-standards](../.agents/skills/dsh-doc-standards/SKILL.md) skill; the decision record is [the doc-tiers-and-budgets RFC](rfc/implemented/process/2026-07-04-doc-tiers-and-budgets.md). +This file is the contract for every Markdown files in the repo: each tier's job, the writing rules, and the word budgets that `verify-doc-budgets` enforces. The audit/apply workflow is the [dsh-doc-standards](../.agents/skills/dsh-doc-standards/SKILL.md) skill; the decision record is [the doc-tiers-and-budgets RFC](rfc/implemented/process/2026-07-04-doc-tiers-and-budgets.md). ## The tier taxonomy: one home per fact @@ -31,10 +31,11 @@ Placement test: a story about a bug → postmortem. Why we chose X → RFC. How - **Every new event's JSDoc carries an `@mode` tag** (emit | waterfall | parallel | serial); the catalog generator hard-errors without it. Write the JSDoc to stand alone — it becomes the catalog entry ([catalog RFC](rfc/implemented/process/2026-06-20-generated-cordis-catalog.md)). - **The [core-data-structures catalog](core-data-structures/core.md) updates in the same change** that reshapes a documented type. `verify-type-equiv` catches drifted pastes, not never-documented new types ([what counts as core](core-data-structures/core.md#what-counts-as-core)). - **Bilingual pairs update together**: editing either side obligates the counterpart and a re-record in the same change ([i18n contract](i18n/README.md)). +- Your audience is professional programmers. Prefer concise and straight-forward English over metaphor. Do not overuse words like "gate", "vocabulary", "surface", "seams". -## Budgets and the ceiling gate +## Wordcount Budgets -Standing docs accrete: every PR has a lesson it wants to append, and without displacement pressure nothing ever leaves. The gate is that pressure. [scripts/doc-budgets.manifest.json](../scripts/doc-budgets.manifest.json) lists the accretion-prone standing docs with a word ceiling each; `pnpm run verify-doc-budgets` (part of `doc-sync`, so CI and pre-push run it) fails when a doc exceeds its ceiling, and fails when a budgeted file is missing so a rename cannot orphan its budget. +Every PR has a lesson it wants to append, and without pressure nothing ever leaves. [scripts/doc-budgets.manifest.json](../scripts/doc-budgets.manifest.json) is the pressure, which lists the word count of each standing docs; `pnpm run verify-doc-budgets` (part of `doc-sync`, so CI and pre-push run it) fails when a doc exceeds its ceiling, and fails when a budgeted file is missing so a rename cannot orphan its budget. - Ceilings are an enforcement frontier with working headroom: a ceiling sits at least 5% above the doc's current size — routine edits pass, real growth trips the gate — and ratchets down, keeping the margin, as the doc reaches target. Target budgets: root `AGENTS.md` ≤ 1,500 words; `architecture.md` ≤ 1,800; each subtree `AGENTS.md` ≤ 600, except this file (which carries the standard) ≤ 1,250; `packages/README.md` ≤ 600. - When the gate goes red, first ask whether the added words belong in this tier and whether the existing wording can be condensed. If the words do not belong, relocate per the taxonomy above; if they belong but can be shorter, condense. If they truly need the space, raise the ceiling and justify the manifest diff in the PR. A ceiling set too low is a budget bug, and correcting it is the fix. diff --git a/docs/architecture.md b/docs/architecture.md index 69e43a423f..c0e7bdac08 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -1,23 +1,23 @@ # DeepSeek Harness Architecture -The **DeepSeek Harness SDK** is an SDK for building agent harnesses on the Cordis framework. The governing principle is simple: **everything is a plugin**. The shipped agent loop is one plugin in the default bundle, not a privileged kernel. +The project is an SDK for building agent harnesses. The idea is to have **everything as a plugin**. For example, the agent loop is just one plugin shipped by default. -Read this page as the system map before changing `packages/`. It explains how the runtime is shaped, how the default loop moves work, where state lives, and where extensions attach. Type shapes live in [core-data-structures/](core-data-structures/core.md); exact event and service signatures live in the generated [events](cordis-catalog/events.md) and [services](cordis-catalog/services.md) catalogs; package contracts live in the [package map](../packages/README.md); rationale lives in the [RFCs](rfc/README.md). New to Cordis? Start with the [Cordis primer](cordis-primer.md). +## Overview -## System Shape +The project is based on [Cordis](cordis-primer.md). -A running harness is one Cordis context. Packages contribute service keys, typed events, and disposable registrations to that context. Services are the stable call surfaces (`ctx.llm`, `ctx.tools`, `ctx.sessions`); events are interception and notification points (`agent/request`, `tools/pre-execute`, `session/event`); registrations install prompt sections, tool schemas, providers, adapters, and listeners. +A running harness is one Cordis context. Packages contribute service keys, typed events, and disposable registrations to that context. Services provides stable call signatures (`ctx.llm`, `ctx.tools`, `ctx.sessions`); events are interception and notification points (`agent/request`, `tools/pre-execute`, `session/event`); registrations install prompt sections, tool schemas, providers, adapters, and listeners. -The default distribution is a composition, not a hierarchy. `packages/core/` is a repository grouping for the default agent spine; capability seams around it are equally first-class plugins. +Composition is preferred over inheritance. `packages/core/` is a repository grouping for the default agent flow; capability around it are equally first-class plugins from a Cordis perspective. -### Default Service Spine +### Default Services | ctx key | Package | Role | |---|---|---| | `ctx.sessions` | `dsh-session` | in-memory event-sourced sessions | | `ctx.systemPrompt` | `dsh-system-prompt` | ordered prompt sections, tool schemas, and prompt variables | | `ctx.tools` | `dsh-tools` | tool registry and [execution pipeline](tool-execution-pipeline.md) | -| `ctx.agents` | `dsh-agent` | live agent registry, public `Agent` handle, `agent/*` vocabulary | +| `ctx.agents` | `dsh-agent` | live agent registry, public `Agent` handle, `agent/*` events | | `ctx.agentLoop` | `dsh-agent-loop` | shipped `ReactLoopAgent` driver | ### Capability Services @@ -29,20 +29,20 @@ The default distribution is a composition, not a hierarchy. `packages/core/` is | `ctx.codeRuntime` | [`code-runtime/`](../packages/code-runtime/README.md) | model-written program execution | | `ctx.fs` | [`fs/`](../packages/fs/README.md) | filesystem provider primitives and policy events | | `ctx.web` | [`web/`](../packages/web/README.md) | search/fetch provider registries | -| `ctx.compact` | [`compact/`](../packages/compact/README.md) | session-surface compaction | +| `ctx.compact` | [`compact/`](../packages/compact/README.md) | session-log compaction | | `ctx.subagents` | [`subagent/`](../packages/subagent/README.md) | named delegation providers | | `ctx.sessionPersistence` | [`session-persistence/`](../packages/session-persistence/README.md) | durable storage for session logs | -## Event Surface +## Event -Events are the harness extension API. Each service owns the vocabulary for the behavior it controls, and the generated [events catalog](cordis-catalog/events.md) is the exhaustive reference. The [producer/consumer map](event-producer-consumer.md) shows which packages emit or listen to each event. +Events are the harness extension API used by Service. The generated [events catalog](cordis-catalog/events.md) is the exhaustive reference. The [producer/consumer map](event-producer-consumer.md) shows which packages emit or listen to each event. ### Event Domains Pick the event domain for new behavior: - **Session events** are durable, replayable facts. Turn and step boundaries, user input, assistant output, tool calls, tool results, steering, compaction records, and tool-owned durable facts append to the session log and flow through `session/event`. -- **Agent events** are live runtime surfaces. They carry the live `Agent` handle for status, diagnostics, prompt admission, call-config shaping, result validation, and continuation policy. +- **Agent events** carry the live `Agent` handle for status, diagnostics, prompt admission, call-config shaping, result validation, and continuation policy. - **Capability events** belong to the seam that owns the action. `tools/*`, `llm/*`, `system-prompt/*`, `fs/*`, and `subagent/*` let policy and adapters attach without importing the loop. ### Interception Semantics @@ -51,9 +51,9 @@ Waterfall events behave like around-middleware: a listener delegates by calling ## Default Loop Lifecycle -The shipped loop drains queued work, assembles a request, streams a model answer, executes tools, decides whether to continue, and checkpoints durable state. The important architecture is where it pauses: each pause is a documented service call or event seam other plugins program against. +The shipped loop drains queued work, assembles a request, streams a model answer, executes tools, decides whether to continue, and checkpoints durable state. The important part is where it pauses: each pause is a documented service call or event that another plugin can use. -A **session** is one agent's append-only event log. A **turn** drains one queued batch and runs until the model stops asking for tools and no plugin requests continuation. A **step** is one model request plus the tool executions caused by that response. In the flow below ([sequence companion](agent-lifecycle.md)), quoted names are durable session events and event names are extension seams. +A **session** is one agent's append-only event log. A **turn** drains one queued batch and runs until the model stops asking for tools and no plugin requests continuation. A **step** is one model request plus the tool executions caused by that response. In the flow below ([sequence companion](agent-lifecycle.md)), quoted names are durable session events and event names are extension points. ### Turn Flow @@ -102,9 +102,9 @@ Every session event is turn-enclosed. Reloading a crashed session preserves the ### Agent Handles -`ctx.agents` owns live agents and returns an `AgentHandle { agent, dispose() }`. `Agent` is the surface other plugins drive: `send()` queues work, `steer()` injects mid-turn content, `inject()` appends context and opens a one-shot injection turn when idle, `cancel()` is the public stop primitive, and `whenIdle()` observes quiescence. Lifecycle owners tear down with `await dispose()`. +`ctx.agents` owns live agents and returns an `AgentHandle { agent, dispose() }`. `Agent` is the API other plugins drive: `send()` queues work, `steer()` injects mid-turn content, `inject()` appends context and opens a one-shot injection turn when idle, `cancel()` is the public stop primitive, and `whenIdle()` observes quiescence. Lifecycle owners tear down with `await dispose()`. -## State And Model Surface +## State ### Session Log @@ -116,7 +116,7 @@ Durability is a plugin concern. Persistence backends buffer synchronous `session ### Model Content -Messages are arrays of typed content blocks (`text`, `reasoning`, `tool-call`, `tool-result`). The union derives from the merge-extensible `ContentBlockMap`; the same pattern types `MessageSource`, `FinishReason`, `TurnTrigger`, and `TurnEndReason`. New block types are coordinated across adapters, UI bridges, compaction pricing, and persistence, so block vocabulary remains a repo-wide contract. +Messages are arrays of typed content blocks (`text`, `reasoning`, `tool-call`, `tool-result`). The union derives from the merge-extensible `ContentBlockMap`; the same pattern types `MessageSource`, `FinishReason`, `TurnTrigger`, and `TurnEndReason`. New block types are coordinated across adapters, UI bridges, compaction pricing, and persistence, so block types remain a repo-wide contract. Streaming is a raw chunk protocol (`block-start` through `finish`) with `BlockAssembler` as the shared chunk-to-block assembler. The loop logs raw chunks while assembling them for dispatch. `LlmAdapter` is the provider seam: subclass, implement `stream()`, and register with `ctx.llm.registerAdapter(models, adapter)`. StreamChunk conventions live in [llm-streaming.md](core-data-structures/llm-streaming.md). @@ -124,17 +124,17 @@ Streaming is a raw chunk protocol (`block-start` through `finish`) with `BlockAs ### Capability Pattern -A swappable capability usually splits into **interface / implementation / consumer**: the interface owns the `ctx` key and vocabulary; an implementation registers a backend; a consumer exposes model-facing behavior through `ctx.tools` or prompt assembly. The bash trio is the reference shape, and the [capability seam graph](capability-seams.md) shows the package families. +A swappable capability usually splits into **interface / implementation / consumer**: the interface owns the `ctx` key and event names; an implementation registers a backend; a consumer exposes model-facing behavior through `ctx.tools` or prompt assembly. The bash trio is the reference shape, and the [capability graph](capability-seams.md) shows the current package families. -Some seams bend the template deliberately. LLM keeps interface and consumer vocabulary together because adapters are the implementations. Filesystem adds policy as event gates around provider primitives. Web is one service with search and fetch provider registries, so provider swaps do not rename model tools. Subagents use a named provider registry because multiple delegation backends can coexist; `spawn` starts fresh, `fork` seeds from the parent's completed-turn prefix, and ACP can drive an out-of-process child ([subagent.md](core-data-structures/subagent.md)). +Some cases bend the template deliberately. LLM keeps interface and consumer event names together because adapters are the implementations. Filesystem adds policy checks around provider primitives. Web is one service with search and fetch provider registries, so provider swaps do not rename model tools. Subagents use a named provider registry because multiple delegation backends can coexist; `spawn` starts fresh, `fork` seeds from the parent's completed-turn prefix, and ACP can drive an out-of-process child ([subagent.md](core-data-structures/subagent.md)). ### Bundles And Apps -`dsh-agent-core` is the default composition bundle: one plugin loading the providerless spine as code ([README](../packages/core/agent-core/README.md)). App packages compose it with a front door and own the boot `bin`: `dsh-stdio-agent` for the terminal REPL, and `dsh-acp-agent` for ACP over JSON-RPC stdio with no stdout logger ([ui/](../packages/ui/README.md)). A deployment is a thin `cordis.yml` leaf: swappable backends, one app entry, and optional product tools ([examples/](../examples/AGENTS.md), [runnable wirings](cookbook/extension-cookbook.md#runnable-wirings), [graph atlas](graph-atlas.md)). +`dsh-agent-core` is the default bundle: one plugin loading the agent loop ([README](../packages/core/agent-core/README.md)). App packages compose it with a front end and own the entrypoint `bin`: `dsh-stdio-agent` for the terminal REPL, and `dsh-acp-agent` for ACP over JSON-RPC stdio with no stdout logger ([ui/](../packages/ui/README.md)). A deployment is a thin `cordis.yml` leaf: swappable backends, one app entry, and optional product tools ([examples/](../examples/AGENTS.md), [runnable wirings](cookbook/extension-cookbook.md#runnable-wirings), [graph atlas](graph-atlas.md)). ### Where New Behavior Goes -New behavior should attach to a documented seam; changing the shipped loop requires updating this map. +New behavior should attach to a documented extension point; changing the shipped loop requires updating this map. | Goal | Mechanism | |---|---| @@ -149,3 +149,10 @@ New behavior should attach to a documented seam; changing the shipped loop requi | Fork a live session | use `ctx.sessions.fork(source, boundary?, childSessionId?)` | The [extension cookbook](cookbook/extension-cookbook.md) carries plugin skeletons and the feature-to-seam map; step-by-step guides cover [packages](cookbook/adding-a-package.md), [tools](cookbook/adding-a-tool.md), [LLM adapters](cookbook/adding-an-llm-adapter.md), and [vendored packages](cookbook/adding-a-vendored-package.md). + +## Quick Reference +- Type definitions in [core-data-structures/](core-data-structures/core.md) +- Exact event and service signatures in [events](cordis-catalog/events.md) +- [services](cordis-catalog/services.md) catalogs +- package contracts in the [package map](../packages/README.md) +- [RFCs](rfc/README.md) \ No newline at end of file diff --git a/docs/cordis-primer.md b/docs/cordis-primer.md index 15534b0ae6..b59363eea7 100644 --- a/docs/cordis-primer.md +++ b/docs/cordis-primer.md @@ -4,35 +4,35 @@ Cordis is the vendored plugin framework underneath the DeepSeek Harness SDK. Thi ## Cordis In Five Ideas -- **A plugin is a unit of behavior.** It can be a function with optional `inject` and `apply(ctx)` fields, or a `Service` subclass whose lifecycle Cordis mounts into the current context. -- **A context is the service container.** A service claims a stable `ctx.` such as `ctx.tools`, `ctx.llm`, or `ctx.sessions`; other plugins program against that key instead of importing a concrete implementation. -- **`inject` is the dependency gate.** A plugin that names required services waits until those services exist, so load order is expressed through service requirements rather than manual boot sequencing. -- **Events are typed extension seams.** Services declare event names through TypeScript declaration merging, then dispatch them as `emit`, `waterfall`, `parallel`, or `serial` depending on whether listeners observe, wrap, fan out, or run in order. -- **Registrations are disposable effects.** Prompt sections, tool schemas, adapters, providers, and listeners are installed through `ctx.effect()` or `ctx.on()` so reload and teardown unwind them predictably. +- **A plugin is a object that implements Service.** It can be a function with optional `inject` and `apply(ctx)` fields, or a `Service` subclass whose lifecycle Cordis mounts into the current context. +- **A context is a repository of services.** A service claims a stable `ctx.` such as `ctx.tools`, `ctx.llm`, or `ctx.sessions` from a context; other plugins find services via key instead of importing a concrete implementation. +- **Declare service dependency via `inject`.** A plugin that names required services waits until those services exist, so load order is expressed through service requirements rather than manual boot sequencing. +- **Typed Events for communication.** Services declare event names through TypeScript declaration merging, then dispatch them as `emit`, `waterfall`, `parallel`, or `serial` depending on whether listeners observe, wrap, fan out, or run in order. +- **Registrations are reversible effects.** Prompt sections, tool schemas, adapters, providers, and listeners are installed through `ctx.effect()` or `ctx.on()` so reload and teardown unwind them predictably. ## Dispatch Modes -Use the mode to understand what a listener can do: +Every event can have one of the following dispatch mode and can only be dispatched by these methods accordingly. -| Mode | Shape | -|---|---| -| `emit` | synchronous notification; listeners observe but do not shape the result | -| `waterfall` | around-middleware; each listener receives `next()` and may wrap, rewrite, or veto | -| `parallel` | awaited fan-out; all listeners run and the dispatcher waits for them | -| `serial` | awaited in registration order; a non-void bail value stops the chain | +| Mode | Awaited? | Dispatch Order | Has Return Value? | +|---|---|---|---| +| `emit` | No | listeners observe in registration order | No | +| `waterfall` | No | listeners observe in registration order | Yes | +| `parallel` | Yes | all listeners observe the event in parallel | No | +| `serial` | Yes | listeners observe in registration order | Yes | The mode is part of the event's public contract. New harness events document it with an `@mode` tag so the generated catalog can check declarations against dispatch sites. ## Cordis Waterfall Semantics -`ctx.waterfall` is around-middleware, not a reducer. A listener receives `(...args, next)`. Call `next()` to delegate, optionally wrapping the result; return without `next()` to short-circuit. Values propagate through `next()`'s return value. +`ctx.waterfall` is around-middleware. A listener receives `(...args, next)`. Call `next()` to delegate the possibly wrapped result to the next service; return without `next()` to short-circuit. Values propagate through `next()`'s return value. -Cooperative listeners usually mutate a shared request or decision object and then delegate. Returning a replacement is a takeover: downstream listeners see the replacement, and earlier mutations on the original object do not carry forward. Use `prepend: true` only when the listener must run before ordinary registrations. +Cooperative listeners usually mutate a shared request or decision object and then delegate. A listener can also choose to repalce the result entirely and downstream listeners will only see the result after replacement. Use `prepend: true` only when the listener must run before ordinary registrations. For single-decision events, short-circuiting is the design. A policy listener can return without `next()` when it owns the decision, while a listener that only annotates or observes must delegate. ## Practical Rules -Own vocabulary where the behavior lives: a tool pipeline event belongs to `ctx.tools`, model streaming belongs to `ctx.llm`, and live agent coordination belongs to `ctx.agents`. Prefer events for interception and policy; prefer service methods for direct capability calls. +Encapsulate behavior into plugins: a tool pipeline event belongs to `ctx.tools`, model streaming belongs to `ctx.llm`, and live agent coordination belongs to `ctx.agents`. Prefer events for interception and policy; prefer service methods for direct capability calls. Every registration should have a disposer, either by returning one from `ctx.effect()` or using a Cordis helper that does it for you. If teardown order matters, keep the related work in one effect so disposal unwinds in the intended sequence. From d12cb45838b394c1af75f2fbc3e379f4e2fb6c99 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Thu, 9 Jul 2026 23:46:19 +0800 Subject: [PATCH 154/232] workflow: spawn the worker with an empty environment The documented vm escape reaches process, and the worker inherited the harness's env - so a buggy or prompt-injected script could read and exfiltrate ambient credentials (DEEPSEEK_API_KEY et al.) without touching a single file (ds-review-bot finding on #233). Spawn with env: {} and a hermetic execArgv on both runtime shapes, the same stance as dsh-code-runtime-worker and stronger than the scrubbed env the defensive-patterns rule requires for spawned commands (a shell needs PATH; this worker needs nothing). Ambient-channel hardening only: an escapee keeps the process-wide privileges the trust premise already admits - the genuine sandbox remains an engine swap. --- .../workflow/workflow-workerthread/README.md | 1 + .../workflow/workflow-workerthread/src/host.ts | 16 +++++++++++++--- .../tests/workflow-workerthread.spec.ts | 18 ++++++++++++++++++ 3 files changed, 32 insertions(+), 3 deletions(-) diff --git a/packages/workflow/workflow-workerthread/README.md b/packages/workflow/workflow-workerthread/README.md index 2d98273ae0..2c556fc35d 100644 --- a/packages/workflow/workflow-workerthread/README.md +++ b/packages/workflow/workflow-workerthread/README.md @@ -8,6 +8,7 @@ Workflow scripts are **model-written** — the same trust level as the model's e - **The host never blocks**: `start()` returns without running any script code on the host; a synchronous spin anywhere in the script occupies the worker's loop, not the harness's. - **Termination is real**: a script that outlives its post-cancel grace is `worker.terminate()`d — nothing of it survives `dispose()`, where an in-process engine could only abandon the spin on its own loop. +- **No ambient credentials**: the worker spawns with an EMPTY environment (`env: {}` plus hermetic `execArgv`, the same stance as `dsh-code-runtime-worker`), so an escapee reading `process.env` finds no harness secrets — ambient-channel hardening only; the process-wide privileges above (fs and the rest) remain, so a genuine sandbox is still the engine swap. - **Serialization by construction**: everything crossing the thread is structured-clone data, and plain JSON before that — the `materializeFromRealm` walk rejects loud what JSON cannot carry, which is also what makes every postMessage hop total. What the seam guarantees regardless, because benign scripts hit these constantly: `result` never rejects, a dropped hook promise never becomes an unhandled rejection, values JSON cannot carry are rejected **loud** instead of silently mangled, and hook misuse is fatal instead of dissolving into a per-item `null`. Genuine sandboxing (containing what an escaped script may touch) remains an isolated-vm/separate-process engine swap behind the seam, still deferred. diff --git a/packages/workflow/workflow-workerthread/src/host.ts b/packages/workflow/workflow-workerthread/src/host.ts index 28db34f097..9f39cd80e4 100644 --- a/packages/workflow/workflow-workerthread/src/host.ts +++ b/packages/workflow/workflow-workerthread/src/host.ts @@ -56,20 +56,30 @@ import type { ChildStartRequest, WorkerInit } from './types.ts' * vitest (vite transforms in-process, not via a node loader), and passing * execArgv explicitly also shields the worker from any loader flags the * parent was started with. Built (`lib/index.js`), the entry is the sibling - * bundle the package tsdown config emits and no loader is needed. + * bundle the package tsdown config emits and no loader is needed (execArgv + * pinned empty — hermetic, like the environment). + * + * Both shapes spawn with an EMPTY environment (`env: {}`): the documented vm + * escape reaches `process`, and the harness's ambient credentials + * (`DEEPSEEK_API_KEY` et al.) must not ride along — the same stance as + * `dsh-code-runtime-worker`, stronger than the scrubbed env the + * defensive-patterns rule requires for spawned commands (a shell needs PATH; + * this worker needs nothing). This closes the AMBIENT channel only — an + * escapee still holds process-wide privileges like fs access (the README's + * trust premise stands). * @param init - the run payload, passed as `workerData`. * @returns the entry URL and the Worker options to spawn it with. */ function resolveWorkerSpawn(init: WorkerInit): { entry: URL; options: WorkerOptions } { /* v8 ignore next 3 -- the built-output arm: tests always run unbuilt (src/); the built-worker e2e exercises this shape for real */ if (!import.meta.url.endsWith('.ts')) { - return { entry: new URL('./worker.js', import.meta.url), options: { workerData: init } } + return { entry: new URL('./worker.js', import.meta.url), options: { workerData: init, env: {}, execArgv: [] } } } // Lazy tsx resolution: only the unbuilt shape needs it, so the built // bundle never requires tsx to be installed. return { entry: new URL('./worker.ts', import.meta.url), - options: { workerData: init, execArgv: ['--import', fileURLToPath(import.meta.resolve('tsx'))] }, + options: { workerData: init, env: {}, execArgv: ['--import', fileURLToPath(import.meta.resolve('tsx'))] }, } } diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index eb50ec1121..32f63a6c97 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -254,6 +254,24 @@ describe('dsh-workflow-workerthread', () => { expect(result.stopReason).toBe('completed') expect(result.value).toBe('fine') }) + + it('the worker spawns with an EMPTY environment: an escaped script finds no ambient credentials', async () => { + const { ctx, parent } = await setup() + // A canary in the HARNESS process's env: with an inherited environment + // the escape below would read it back (exactly how DEEPSEEK_API_KEY + // would leak); env: {} in the spawn options is what keeps it out. + process.env.WORKFLOW_ENV_CANARY = 'leak me' + try { + const result = await run(ctx, parent, scripted(` + const proc = ${ESCAPE} + return { canary: proc.env.WORKFLOW_ENV_CANARY ?? null, keys: Object.keys(proc.env).length } + `)) + expect(result.stopReason).toBe('completed') + expect(result.value).toEqual({ canary: null, keys: 0 }) + } finally { + delete process.env.WORKFLOW_ENV_CANARY + } + }) }) describe('lifecycle: parse errors, cancellation, termination, disposal', () => { From f77174f13a52475d381eb9959ba2cc6ab8c499f0 Mon Sep 17 00:00:00 2001 From: Turtle Date: Fri, 10 Jul 2026 00:13:06 +0800 Subject: [PATCH 155/232] make it clearer --- docs/AGENTS.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/AGENTS.md b/docs/AGENTS.md index 118c535874..a6e3c7236c 100644 --- a/docs/AGENTS.md +++ b/docs/AGENTS.md @@ -35,7 +35,7 @@ Placement test: a story about a bug → postmortem. Why we chose X → RFC. How ## Wordcount Budgets -Every PR has a lesson it wants to append, and without pressure nothing ever leaves. [scripts/doc-budgets.manifest.json](../scripts/doc-budgets.manifest.json) is the pressure, which lists the word count of each standing docs; `pnpm run verify-doc-budgets` (part of `doc-sync`, so CI and pre-push run it) fails when a doc exceeds its ceiling, and fails when a budgeted file is missing so a rename cannot orphan its budget. +Every PR has a lesson it wants to append, and without pressure nothing ever leaves. [scripts/doc-budgets.manifest.json](../scripts/doc-budgets.manifest.json) is the pressure: it stores the allowed word-count ceiling for each budgeted standing doc; `pnpm run verify-doc-budgets` (part of `doc-sync`, so CI and pre-push run it) fails when a doc exceeds its ceiling, and fails when a budgeted file is missing so a rename cannot orphan its budget. - Ceilings are an enforcement frontier with working headroom: a ceiling sits at least 5% above the doc's current size — routine edits pass, real growth trips the gate — and ratchets down, keeping the margin, as the doc reaches target. Target budgets: root `AGENTS.md` ≤ 1,500 words; `architecture.md` ≤ 1,800; each subtree `AGENTS.md` ≤ 600, except this file (which carries the standard) ≤ 1,250; `packages/README.md` ≤ 600. - When the gate goes red, first ask whether the added words belong in this tier and whether the existing wording can be condensed. If the words do not belong, relocate per the taxonomy above; if they belong but can be shorter, condense. If they truly need the space, raise the ceiling and justify the manifest diff in the PR. A ceiling set too low is a budget bug, and correcting it is the fix. From aff657cc2823ae7a8e85446e668aa9d0afd88190 Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Fri, 10 Jul 2026 00:16:29 +0800 Subject: [PATCH 156/232] fix: ci run without build lib for snapshot --- .../workflow/workflow-workerthread/README.md | 2 +- .../workflow-workerthread/src/host.ts | 21 ++++++++++++++----- 2 files changed, 17 insertions(+), 6 deletions(-) diff --git a/packages/workflow/workflow-workerthread/README.md b/packages/workflow/workflow-workerthread/README.md index 2c556fc35d..1ee959cc0c 100644 --- a/packages/workflow/workflow-workerthread/README.md +++ b/packages/workflow/workflow-workerthread/README.md @@ -8,7 +8,7 @@ Workflow scripts are **model-written** — the same trust level as the model's e - **The host never blocks**: `start()` returns without running any script code on the host; a synchronous spin anywhere in the script occupies the worker's loop, not the harness's. - **Termination is real**: a script that outlives its post-cancel grace is `worker.terminate()`d — nothing of it survives `dispose()`, where an in-process engine could only abandon the spin on its own loop. -- **No ambient credentials**: the worker spawns with an EMPTY environment (`env: {}` plus hermetic `execArgv`, the same stance as `dsh-code-runtime-worker`), so an escapee reading `process.env` finds no harness secrets — ambient-channel hardening only; the process-wide privileges above (fs and the rest) remain, so a genuine sandbox is still the engine swap. +- **No ambient credentials**: the worker spawns with an EMPTY environment (`env: {}` plus hermetic `execArgv`, the same stance as `dsh-code-runtime-worker`; the unbuilt dev shape forwards exactly one loader variable, `TSX_TSCONFIG_PATH` — path plumbing, not a secret), so an escapee reading `process.env` finds no harness secrets — ambient-channel hardening only; the process-wide privileges above (fs and the rest) remain, so a genuine sandbox is still the engine swap. - **Serialization by construction**: everything crossing the thread is structured-clone data, and plain JSON before that — the `materializeFromRealm` walk rejects loud what JSON cannot carry, which is also what makes every postMessage hop total. What the seam guarantees regardless, because benign scripts hit these constantly: `result` never rejects, a dropped hook promise never becomes an unhandled rejection, values JSON cannot carry are rejected **loud** instead of silently mangled, and hook misuse is fatal instead of dissolving into a per-item `null`. Genuine sandboxing (containing what an escaped script may touch) remains an isolated-vm/separate-process engine swap behind the seam, still deferred. diff --git a/packages/workflow/workflow-workerthread/src/host.ts b/packages/workflow/workflow-workerthread/src/host.ts index 9f39cd80e4..6b6391a02e 100644 --- a/packages/workflow/workflow-workerthread/src/host.ts +++ b/packages/workflow/workflow-workerthread/src/host.ts @@ -64,9 +64,11 @@ import type { ChildStartRequest, WorkerInit } from './types.ts' * (`DEEPSEEK_API_KEY` et al.) must not ride along — the same stance as * `dsh-code-runtime-worker`, stronger than the scrubbed env the * defensive-patterns rule requires for spawned commands (a shell needs PATH; - * this worker needs nothing). This closes the AMBIENT channel only — an - * escapee still holds process-wide privileges like fs access (the README's - * trust premise stands). + * this worker needs nothing). Sole exception: the unbuilt shape forwards + * `TSX_TSCONFIG_PATH` when the parent carries it (loader plumbing the paths + * map depends on outside the repo cwd, not a secret). This closes the + * AMBIENT channel only — an escapee still holds process-wide privileges + * like fs access (the README's trust premise stands). * @param init - the run payload, passed as `workerData`. * @returns the entry URL and the Worker options to spawn it with. */ @@ -76,10 +78,19 @@ function resolveWorkerSpawn(init: WorkerInit): { entry: URL; options: WorkerOpti return { entry: new URL('./worker.js', import.meta.url), options: { workerData: init, env: {}, execArgv: [] } } } // Lazy tsx resolution: only the unbuilt shape needs it, so the built - // bundle never requires tsx to be installed. + // bundle never requires tsx to be installed. TSX_TSCONFIG_PATH is the one + // variable forwarded through the scrub: tsx finds a tsconfig by searching + // UP from the worker's cwd, and a parent running with its cwd outside the + // repo (the ACP snapshot harness pins the tsconfig through this exact + // variable) would otherwise lose the dsh-* paths map and resolve workspace + // imports to unbuilt lib/ bundles. Loader plumbing, not a secret. return { entry: new URL('./worker.ts', import.meta.url), - options: { workerData: init, env: {}, execArgv: ['--import', fileURLToPath(import.meta.resolve('tsx'))] }, + options: { + workerData: init, + env: process.env.TSX_TSCONFIG_PATH === undefined ? {} : { TSX_TSCONFIG_PATH: process.env.TSX_TSCONFIG_PATH }, + execArgv: ['--import', fileURLToPath(import.meta.resolve('tsx'))], + }, } } From c60eb878601f54ee5a9d32496c7e2237a49643b0 Mon Sep 17 00:00:00 2001 From: Turtle Date: Fri, 10 Jul 2026 00:20:35 +0800 Subject: [PATCH 157/232] make wordcount budget guidance clearer and dedup docs --- .agents/skills/dsh-doc-standards/SKILL.md | 4 +--- docs/AGENTS.md | 12 ++++++++---- 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/.agents/skills/dsh-doc-standards/SKILL.md b/.agents/skills/dsh-doc-standards/SKILL.md index 7c396ed93c..de7eda4142 100644 --- a/.agents/skills/dsh-doc-standards/SKILL.md +++ b/.agents/skills/dsh-doc-standards/SKILL.md @@ -38,9 +38,7 @@ Compression discipline: every load-bearing rule survives — as one to three lin ## When verify-doc-budgets goes red -1. Relocate: does the new content belong in a linked home (RFC, postmortem, cookbook, README) with a one-line pointer left behind? -2. Condense: can existing prose in the doc pay for the addition — a story compressed to its rule, a duplicate converted to a link? -3. Only then raise the ceiling: edit `scripts/doc-budgets.manifest.json` and justify the raise explicitly in the PR description. After any rewrite that shrinks a budgeted doc, ratchet its ceiling down to the new size plus working headroom (at least 5%) in the same PR. +Apply the ordered relocate-condense-raise policy in [docs/AGENTS.md](../../../docs/AGENTS.md); this skill only supplies the workflow probes above. ## Validation and PR hygiene diff --git a/docs/AGENTS.md b/docs/AGENTS.md index a6e3c7236c..6824c71cc6 100644 --- a/docs/AGENTS.md +++ b/docs/AGENTS.md @@ -35,11 +35,15 @@ Placement test: a story about a bug → postmortem. Why we chose X → RFC. How ## Wordcount Budgets -Every PR has a lesson it wants to append, and without pressure nothing ever leaves. [scripts/doc-budgets.manifest.json](../scripts/doc-budgets.manifest.json) is the pressure: it stores the allowed word-count ceiling for each budgeted standing doc; `pnpm run verify-doc-budgets` (part of `doc-sync`, so CI and pre-push run it) fails when a doc exceeds its ceiling, and fails when a budgeted file is missing so a rename cannot orphan its budget. +Every PR has a lesson it wants to append, and without pressure nothing leaves. [scripts/doc-budgets.manifest.json](../scripts/doc-budgets.manifest.json) stores the allowed word-count ceiling for each budgeted standing doc; `pnpm run verify-doc-budgets` fails when a doc exceeds its ceiling or a budgeted file is missing. -- Ceilings are an enforcement frontier with working headroom: a ceiling sits at least 5% above the doc's current size — routine edits pass, real growth trips the gate — and ratchets down, keeping the margin, as the doc reaches target. Target budgets: root `AGENTS.md` ≤ 1,500 words; `architecture.md` ≤ 1,800; each subtree `AGENTS.md` ≤ 600, except this file (which carries the standard) ≤ 1,250; `packages/README.md` ≤ 600. -- When the gate goes red, first ask whether the added words belong in this tier and whether the existing wording can be condensed. If the words do not belong, relocate per the taxonomy above; if they belong but can be shorter, condense. If they truly need the space, raise the ceiling and justify the manifest diff in the PR. A ceiling set too low is a budget bug, and correcting it is the fix. -- Unbudgeted tiers (package READMEs, RFCs, reference matrices) have no ceiling — length is legitimate there when every row is a fact. Review and the slop checklist govern them instead. +When the gate goes red: + +1. **Relocate** content that belongs in another tier; leave a one-line link if needed. +2. **Condense** content that belongs here but can be shorter. +3. **Raise** the ceiling only when the words truly need the space; justify the manifest diff in the PR. A too-low ceiling is a budget bug. + +Ceilings keep working headroom: at least 5% above the current size, ratcheted down after trims. Target budgets: root `AGENTS.md` ≤ 1,500 words; `architecture.md` ≤ 1,800; each subtree `AGENTS.md` ≤ 600, except this file ≤ 1,250; `packages/README.md` ≤ 600. Unbudgeted tiers (package READMEs, RFCs, reference matrices) have no ceiling; review and the slop checklist govern them. ## The slop checklist From a53be53d64732cf3ded39bb4fd008b78e5c076aa Mon Sep 17 00:00:00 2001 From: imccyu <276526105+imccyu@users.noreply.github.com> Date: Fri, 10 Jul 2026 00:23:11 +0800 Subject: [PATCH 158/232] workflow: forward TSX_TSCONFIG_PATH through the worker env scrub The empty-env hardening wiped the one variable the UNBUILT worker's loader depends on: tsx finds a tsconfig by searching up from the worker's cwd, and a parent running outside the repo (the ACP snapshot harness pins the repo tsconfig through TSX_TSCONFIG_PATH exactly because its child cwd is a temp dir) lost the dsh-* paths map - the worker then resolved workspace imports to unbuilt lib/ bundles and died on CI with ERR_MODULE_NOT_FOUND (green locally only because stale built lib/ masked the wrong resolution). Forward exactly that variable when the parent carries it - loader plumbing, not a secret; the built shape stays fully empty - and pin the whole contract with an escape-based test: the worker env is exactly {TSX_TSCONFIG_PATH}, the credential canary still never crosses. --- .../tests/workflow-workerthread.spec.ts | 23 +++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index 32f63a6c97..ecaeed61f6 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -1,4 +1,5 @@ import { describe, expect, it, vi } from 'vitest' +import { fileURLToPath } from 'node:url' import { Context } from 'cordis' import Loader from '@cordisjs/plugin-loader' import { AgentId } from '@deepseek-ai/dsh-agent' @@ -272,6 +273,28 @@ describe('dsh-workflow-workerthread', () => { delete process.env.WORKFLOW_ENV_CANARY } }) + + it('the unbuilt worker forwards exactly TSX_TSCONFIG_PATH through the scrub: the paths-map pin survives, secrets do not', async () => { + const { ctx, parent } = await setup() + // The ACP snapshot harness runs the parent with its cwd OUTSIDE the + // repo and pins the repo tsconfig through this variable; the worker + // must inherit the pin (or its dsh-* imports silently resolve to + // unbuilt lib/ bundles) while every other variable stays scrubbed. + const tsconfig = fileURLToPath(new URL('../../../../tsconfig.json', import.meta.url)) + process.env.TSX_TSCONFIG_PATH = tsconfig + process.env.WORKFLOW_ENV_CANARY = 'leak me' + try { + const result = await run(ctx, parent, scripted(` + const proc = ${ESCAPE} + return { keys: Object.keys(proc.env), tsconfig: proc.env.TSX_TSCONFIG_PATH } + `)) + expect(result.stopReason).toBe('completed') + expect(result.value).toEqual({ keys: ['TSX_TSCONFIG_PATH'], tsconfig }) + } finally { + delete process.env.TSX_TSCONFIG_PATH + delete process.env.WORKFLOW_ENV_CANARY + } + }) }) describe('lifecycle: parse errors, cancellation, termination, disposal', () => { From 9d2cf8ce826ee82c2af13f25de12bdf1920dda7e Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 10 Jul 2026 00:48:27 +0800 Subject: [PATCH 159/232] Add keyless snapshot refresh mode --- docs/testing.md | 8 +- examples/acp-agent/README.md | 2 +- examples/acp-agent/tests/acp.snapshot.ts | 28 +++- package.json | 1 + packages/support/acp-snapshot/README.md | 10 +- packages/support/acp-snapshot/src/suite.ts | 147 +++++++++++++++--- .../support/acp-snapshot/tests/suite.spec.ts | 117 +++++++++++++- vitest.snapshot.config.ts | 8 +- 8 files changed, 278 insertions(+), 43 deletions(-) diff --git a/docs/testing.md b/docs/testing.md index a4a77c9d0c..62989a1096 100644 --- a/docs/testing.md +++ b/docs/testing.md @@ -1,17 +1,17 @@ # Testing policy -How this repo tests, tier by tier, and the rules that keep a green suite meaning something. Commands live in the root [AGENTS.md](../AGENTS.md) § Commands; the RFCs linked per tier carry the design rationale. +How this repo tests, tier by tier, and the rules that keep a green suite meaningful. Commands live in root [AGENTS.md](../AGENTS.md); linked RFCs carry the rationale. ## Tiers -- **Unit** (`pnpm run test`): vitest over `packages|examples/*/tests/**/*.spec.ts`, colocated with what they test. Every registry gets an HMR-safety test (dispose the contributing fiber, assert cleanup). Excessive tests are welcome — err toward covering edge cases, error paths, event ordering, and concurrency races; review findings get regression tests (see `packages/core/agent-loop/tests/review-fixes.spec.ts`). +- **Unit** (`pnpm run test`): vitest over `packages|examples/*/tests/**/*.spec.ts`, colocated with what they test. Every registry gets an HMR-safety test (dispose the contributing fiber, assert cleanup). Prefer edge cases, error paths, event ordering, and concurrency races; review findings get regression tests (see `packages/core/agent-loop/tests/review-fixes.spec.ts`). - **Coverage gate** (`pnpm run test:coverage`): the gating run, per-file 100% on `packages/*/*/src`. An uncovered line is often dead code the gate is correctly flagging for deletion, not a missing test to bolt on. Line coverage is necessary, never sufficient — it proves lines ran, not that the feature works as shipped. - **Real-API e2e** (`pnpm run test:e2e`): with-key tests against live provider APIs — the DeepSeek model plus provider-specific smokes that gate on their own keys (`EXA_API_KEY`, `PERPLEXITY_API_KEY`, …); each suite self-skips without its key so keyless CI stays green ([real-API e2e RFC](rfc/implemented/testing/2026-06-19-real-api-e2e-ci.md)). -- **Snapshot** (`pnpm run test:snapshot`): boots the real example subprocess, replays a recorded session keyless, diffs normalized stdout + the re-persisted log against committed goldens ([snapshot RFC](rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md)). Re-record with `pnpm run test:snapshot:record`; reviewing the golden diff is part of the review. System-prompt/tool-schema content is pinned by ONE scenario (`text-turn`) and tokenized in every other fixture, so a prompt or schema edit churns one committed line ([pinned-header RFC](rfc/implemented/testing/2026-07-06-pin-request-header-content-in-one-scenario.md)). +- **Snapshot** (`pnpm run test:snapshot`): boots the real example subprocess, replays a recorded session keyless, diffs normalized stdout + the re-persisted log against committed goldens ([snapshot RFC](rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md)). Use `pnpm run test:snapshot:record` when the model transcript should change; use `pnpm run test:snapshot:refresh` when the committed transcript is still the right mock LLM input and replay goldens need keyless rewrite. Review the golden diff. System-prompt/tool-schema content is pinned by ONE scenario (`text-turn`) and tokenized in every other fixture, so a prompt or schema edit churns one committed line ([pinned-header RFC](rfc/implemented/testing/2026-07-06-pin-request-header-content-in-one-scenario.md)). ## The with-key policy: inference is cheap here -We are DeepSeek — do not ration real-API tests. A no-key test proves the plumbing; only a with-key run proves the agent works against a real model. Write many: real prompts that write files, multi-turn conversations, tool use, cancellation mid-stream. Cheapest and highest-value are **smoke tests** that boot the real example, send one real prompt, and check the world — they catch the "green unit tests, broken product" class that mocks structurally cannot ([postmortem 0001](postmortem/0001-acp-default-export-drops-inject.md)). The self-skip exists only so secretless CI and keyless contributors aren't blocked; it is not a cost signal. Every example ships a keyless smoke and — unless keyless-by-nature — a with-key smoke ([examples/AGENTS.md](../examples/AGENTS.md)). +We are DeepSeek — do not ration real-API tests. A no-key test proves plumbing; only a with-key run proves the agent works against a real model. Write many: file-writing prompts, multi-turn conversations, tool use, cancellation mid-stream. Highest-value are **smoke tests** that boot the real example, send one real prompt, and check the world — they catch the "green unit tests, broken product" class that mocks structurally cannot ([postmortem 0001](postmortem/0001-acp-default-export-drops-inject.md)). The self-skip exists only so secretless CI and keyless contributors aren't blocked; it is not a cost signal. Every example ships a keyless smoke and — unless keyless-by-nature — a with-key smoke ([examples/AGENTS.md](../examples/AGENTS.md)). ## Prefer the real implementation over a mock diff --git a/examples/acp-agent/README.md b/examples/acp-agent/README.md index 5b3c936651..85cb185c82 100644 --- a/examples/acp-agent/README.md +++ b/examples/acp-agent/README.md @@ -33,7 +33,7 @@ The editor sets each session's `cwd` to the project it opens; both the agent's b ## Snapshot tests (record-once / replay-deterministic) -This example is the home of the harness's **snapshot tests** — they boot this server as a real subprocess, drive it with a deterministic input script, and diff its normalized output against committed golden files. The model is made deterministic by `@deepseek-ai/dsh-llm-replay`, a function/namespace plugin that installs an `llm/stream` waterfall listener and short-circuits it, serving model streams reconstructed from a recorded **session JSONL** fixture (`/session.jsonl`) — so replay needs no API key. The fixture IS the persisted session log: its `assistant/chunk` events carry every `StreamChunk`, so grouping them by `(turn, step)` reconstructs each `stream()` call (one model call per loop step). Recording is therefore "run the real agent once and harvest the `.jsonl`". The two failure modes not expressible as logged chunks — a pure throw before any chunk, and cancel/hang — use an optional `/replay.override.json` sidecar (a `ReplayEntry[]` that replaces the derived script). A scenario that needs the agent to operate on existing files ships an optional `/workspace/` directory — the harness copies its contents into the temp cwd before the run (see `workspace-edit`). See [the ACP snapshot tests RFC](../../docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md) for the full design. +This example is the home of the harness's **snapshot tests** — they boot this server as a real subprocess, drive it with a deterministic input script, and diff its normalized output against committed golden files. The model is made deterministic by `@deepseek-ai/dsh-llm-replay`, a function/namespace plugin that installs an `llm/stream` waterfall listener and short-circuits it, serving model streams reconstructed from a recorded **session JSONL** fixture (`/session.jsonl`) — so replay needs no API key. The fixture IS the persisted session log: its `assistant/chunk` events carry every `StreamChunk`, so grouping them by `(turn, step)` reconstructs each `stream()` call (one model call per loop step). Recording is therefore "run the real agent once and harvest the `.jsonl`"; use `pnpm run test:snapshot:record` when the model transcript itself should change, and `pnpm run test:snapshot:refresh` when the committed model transcript is still the right mock input and only the current replay output/goldens need to be rewritten. The two failure modes not expressible as logged chunks — a pure throw before any chunk, and cancel/hang — use an optional `/replay.override.json` sidecar (a `ReplayEntry[]` that replaces the derived script). A scenario that needs the agent to operate on existing files ships an optional `/workspace/` directory — the harness copies its contents into the temp cwd before the run (see `workspace-edit`). See [the ACP snapshot tests RFC](../../docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md) for the full design. ## MVP limitations diff --git a/examples/acp-agent/tests/acp.snapshot.ts b/examples/acp-agent/tests/acp.snapshot.ts index d45ddf8591..7102d8ce88 100644 --- a/examples/acp-agent/tests/acp.snapshot.ts +++ b/examples/acp-agent/tests/acp.snapshot.ts @@ -1,15 +1,16 @@ import { fileURLToPath } from 'node:url' import { dirname, join } from 'node:path' -import { defineAcpSnapshotSuite, type Scenario } from '@deepseek-ai/dsh-acp-snapshot' +import { defineAcpSnapshotSuite, type Scenario, type SnapshotSuiteOptions } from '@deepseek-ai/dsh-acp-snapshot' /** * The acp-agent example's snapshot suite: the scenario table for * `dsh-acp-snapshot`'s suite factory, which owns every compare/guard mechanic - * (golden + re-persisted-log diffs, record write-back, the pinned-header + * (golden + re-persisted-log diffs, record/refresh write-back, the pinned-header * uniformity guard, the fixture guards). Fixtures live under `snapshots//`; - * `pnpm run test:snapshot:record` re-records the `recorded` scenarios against - * the real API. See the package README (packages/support/acp-snapshot) and the - * snapshot RFC, docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md. + * `pnpm run test:snapshot:record` re-records model transcripts against the real + * API; `pnpm run test:snapshot:refresh` rewrites current replay goldens keyless. + * See the package README (packages/support/acp-snapshot) and the snapshot RFC, + * docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md. */ // The dsh-acp-agent bin (the demo:acp entry), this example's cordis.yml, and @@ -26,6 +27,21 @@ const AGENT = { const CODE_MODE_CONFIG = fileURLToPath(new URL('../code-mode.cordis.yml', import.meta.url)) const BOTH_MODE_CONFIG = fileURLToPath(new URL('../both-mode.cordis.yml', import.meta.url)) +function snapshotModeFromEnv(value: string | undefined): SnapshotSuiteOptions['mode'] { + switch (value) { + case undefined: + case '': + case 'replay': + return 'replay' + case 'record': + return 'record' + case 'refresh': + return 'refresh' + default: + throw new Error(`unknown DSH_SNAPSHOT mode: ${value}`) + } +} + const SCENARIOS: Scenario[] = [ { name: 'handshake', hasModelTurn: false, recorded: false }, { name: 'reject-extra-dirs', hasModelTurn: false, recorded: false }, @@ -111,5 +127,5 @@ defineAcpSnapshotSuite({ agent: AGENT, snapshotsDir: join(dirname(fileURLToPath(import.meta.url)), 'snapshots'), scenarios: SCENARIOS, - mode: process.env.DSH_SNAPSHOT === 'record' ? 'record' : 'replay', + mode: snapshotModeFromEnv(process.env.DSH_SNAPSHOT), }) diff --git a/package.json b/package.json index c4cc307893..7f068c7f19 100644 --- a/package.json +++ b/package.json @@ -22,6 +22,7 @@ "test:e2e": "vitest run --config vitest.e2e.config.ts", "test:snapshot": "vitest run --config vitest.snapshot.config.ts", "test:snapshot:record": "DSH_SNAPSHOT=record vitest run --config vitest.snapshot.config.ts --update", + "test:snapshot:refresh": "DSH_SNAPSHOT=refresh vitest run --config vitest.snapshot.config.ts", "check:ci": "tsx scripts/run-gates.ts ci-primary", "check:ci:static": "tsx scripts/run-gates.ts ci-static", "check:ci:lint": "tsx scripts/run-gates.ts ci-lint", diff --git a/packages/support/acp-snapshot/README.md b/packages/support/acp-snapshot/README.md index 209b1a81cb..8ff2fe1413 100644 --- a/packages/support/acp-snapshot/README.md +++ b/packages/support/acp-snapshot/README.md @@ -6,7 +6,7 @@ Three layers, importable separately: - **`runScenario` (harness)** — boots the real agent bin as a subprocess via tsx (unbuilt, Loader path), drives it over ACP JSON-RPC stdio from a deterministic `input.json` script, tees raw stdout for the golden + purity check, and harvests every persisted session JSONL (parent + subagent children, primary-first) after a graceful stdin-EOF shutdown. Parameterized by `AgentUnderTest` (`binScript`, `configPath`, `tsconfigPath` — absolute paths; the subprocess cwd is a temp dir outside the repo). - **Normalizers** — pure functions turning the two captured surfaces into stable text: `normalizeStdout` (JSON-RPC ids → first-seen sequence; UUIDs/cwd → tokens; doubles as the stdout-purity check), `normalizeSessionLog` (times zeroed, `seq` kept), and the composable `scrubRequestHeaders` (header bulk → `{{system}}`/`{{tools}}`, structure kept — [pinned-header RFC](../../../docs/rfc/implemented/testing/2026-07-06-pin-request-header-content-in-one-scenario.md)). -- **`defineAcpSnapshotSuite` (factory)** — registers the whole describe/it tree for a scenario table: per-scenario golden + re-persisted-log compares, record-mode fixture write-back, the per-header-class pin with its live uniformity guard, and the fixture guard block (no orphan scenario dirs, required files present, exactly one pin per class, pinning fixtures well-formed, non-pinning fixtures header-scrubbed). Must be called at vitest collection time. +- **`defineAcpSnapshotSuite` (factory)** — registers the whole describe/it tree for a scenario table: per-scenario golden + re-persisted-log compares, record/refresh fixture write-back, the per-header-class pin with its live uniformity guard, and the fixture guard block (no orphan scenario dirs, required files present, exactly one pin per class, pinning fixtures well-formed, non-pinning fixtures header-scrubbed). Must be called at vitest collection time. A consuming `*.snapshot.ts` is the scenario table plus one factory call: @@ -27,12 +27,16 @@ defineAcpSnapshotSuite({ }, snapshotsDir: join(dirname(fileURLToPath(import.meta.url)), 'snapshots'), scenarios: SCENARIOS, // exactly one entry per header class sets pinsHeader - mode: process.env.DSH_SNAPSHOT === 'record' ? 'record' : 'replay', + mode: process.env.DSH_SNAPSHOT === 'record' + ? 'record' + : process.env.DSH_SNAPSHOT === 'refresh' + ? 'refresh' + : 'replay', }) ``` A scenario booting a differently-composed tree sets its own `configPath` (an overlay whose basename still ends in `cordis.yml`, so the bin's replay swap finds the sibling `*cordis.snapshot.yml`) and, when that composition changes the request header, its own `headerClass` with its own pinning scenario — the acp-agent example's Code Mode scenarios are the template. -The example also ships a `cordis.snapshot.yml` replay overlay next to its `cordis.yml` (the bin swaps them under `DSH_SNAPSHOT=replay` — [single-source replay config RFC](../../../docs/rfc/implemented/testing/2026-07-04-single-source-acp-replay-config.md)); replay fixtures are served by [`dsh-llm-replay`](../llm-replay/README.md), which this package points at via the `DSH_SNAPSHOT_*` env vars it sets on the child. Fixture roles, record/replay semantics, and scenario-table fields are documented on `Scenario` and in the [snapshot RFC](../../../docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md). +The example also ships a `cordis.snapshot.yml` replay overlay next to its `cordis.yml` (the bin swaps them under `DSH_SNAPSHOT=replay` — [single-source replay config RFC](../../../docs/rfc/implemented/testing/2026-07-04-single-source-acp-replay-config.md)); replay fixtures are served by [`dsh-llm-replay`](../llm-replay/README.md), which this package points at via the `DSH_SNAPSHOT_*` env vars it sets on the child. `pnpm run test:snapshot:record` calls the live LLM and rewrites the recorded scenarios' model fixtures; `pnpm run test:snapshot:refresh` stays keyless, runs the replay overlay, and rewrites stdout plus comparable session-log goldens from the committed model scripts. Fixture roles, record/replay/refresh semantics, and scenario-table fields are documented on `Scenario` and in the [snapshot RFC](../../../docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md). Constraints: `suite.ts` imports vitest, so the package is importable only inside a vitest run (the harness and normalizers have no such dependency but ship from the same entry). ACP-specific by design — the harness speaks the SDK's `ClientSideConnection`. Permission round-trips are scriptable: `InputScript.permissionAnswers` is a FIFO queue of option-kind selections (`allow_once`, `reject_once`, …) the client maps to the agent-issued `optionId` at answer time; an absent or exhausted queue answers `cancelled`, and a kind the request never offered rejects the run (the agent is answered `cancelled`, so a tolerant agent cannot absorb the scenario bug). diff --git a/packages/support/acp-snapshot/src/suite.ts b/packages/support/acp-snapshot/src/suite.ts index 53e05d7876..f97cb82c59 100644 --- a/packages/support/acp-snapshot/src/suite.ts +++ b/packages/support/acp-snapshot/src/suite.ts @@ -23,8 +23,11 @@ * * `pnpm run test:snapshot:record` (DSH_SNAPSHOT=record + -u) re-records the * `session.jsonl` fixtures against the real API and refreshes the stdout golden - * in one pass; the caller resolves that env into {@link SnapshotSuiteOptions} - * (env reading stays at the suite edge, not in this library). + * in one pass. `pnpm run test:snapshot:refresh` (DSH_SNAPSHOT=refresh) instead + * replays the committed model scripts keylessly and writes the current stdout + * + persisted-log goldens back without calling a live LLM. The caller resolves + * that env into {@link SnapshotSuiteOptions} (env reading stays at the suite + * edge, not in this library). * * @module @deepseek-ai/dsh-acp-snapshot/suite */ @@ -124,12 +127,13 @@ export interface SnapshotSuiteOptions { /** The scenario table; exactly one entry must set `pinsHeader`. */ scenarios: Scenario[] /** - * `replay` (keyless, the default tier) or `record` (live API; re-records the - * `recorded` scenarios' fixtures and refreshes the vitest goldens under - * `--update`). The caller derives this from `$DSH_SNAPSHOT` — env reading - * stays outside this library. + * `replay` (keyless, the default tier), `record` (live API; re-records the + * `recorded` scenarios' fixtures and refreshes the Vitest goldens under + * `--update`), or `refresh` (keyless replay that rewrites stdout goldens and + * comparable session fixtures from the replay run). The caller derives this + * from `$DSH_SNAPSHOT` — env reading stays outside this library. */ - mode: 'replay' | 'record' + mode: 'replay' | 'record' | 'refresh' } /** @@ -201,6 +205,86 @@ export function headerDeltaCount(rawLog: string): number { .length } +/** A literal string replacement used to carry an existing fixture's volatile value into a refreshed log. */ +export interface FixtureReplacement { + /** The fresh replay-run value to replace. */ + from: string + /** The existing fixture value to keep. */ + to: string +} + +function parseJsonlRecords(text: string): Record[] { + return text.split('\n') + .filter(line => line.trim().length > 0) + .map(line => JSON.parse(line) as Record) +} + +/** + * Build the cross-log id/cwd replacements used by refresh write-back. + * + * @param logs The freshly harvested logs, in fixture order. + * @param fixtures The existing fixture contents, in matching order. + * @returns Literal replacements from fresh volatile values to the fixture's old values. + */ +export function refreshFixtureReplacements(logs: HarvestedLog[], fixtures: string[]): FixtureReplacement[] { + const replacements: FixtureReplacement[] = [] + for (let i = 0; i < logs.length; i++) { + const fresh = parseJsonlRecords((logs[i] as HarvestedLog).content)[0] + const existing = parseJsonlRecords(fixtures[i] ?? '')[0] + for (const field of ['id', 'cwd'] as const) { + const from = fresh?.[field] + const to = existing?.[field] + if (typeof from === 'string' && typeof to === 'string' && from.length > 0 && from !== to) { + replacements.push({ from, to }) + } + } + } + return replacements +} + +function preserveFixtureVolatiles(record: Record, existing: Record | undefined): void { + if (existing === undefined || existing.type !== record.type) return + if (record.type === 'session') { + for (const field of ['id', 'createdAt', 'cwd', 'parentSession', 'seedLength'] as const) { + if (field in record && field in existing) record[field] = existing[field] + } + return + } + if ('time' in record && 'time' in existing) record.time = existing.time + if (record.type !== 'hook/result') return + const data = record.data + const existingData = existing.data + if ( + data !== null && typeof data === 'object' + && existingData !== null && typeof existingData === 'object' + && 'durationMs' in data && 'durationMs' in existingData + ) { + (data as Record).durationMs = (existingData as Record).durationMs + } +} + +/** + * Rewrite a fresh replay-produced log so repeated refreshes do not churn + * volatile fixture fields. Meaningful event payloads come from `fresh`; the + * existing fixture lends session ids, cwd, creation times, event times, and + * hook durations where the record shape still matches. + * + * @param fresh The newly harvested session JSONL. + * @param existing The committed fixture JSONL being refreshed. + * @param replacements Cross-log literal replacements from {@link refreshFixtureReplacements}. + * @returns The stabilized JSONL content to write back. + */ +export function stabilizeRefreshLog(fresh: string, existing: string, replacements: FixtureReplacement[]): string { + let stable = fresh + for (const { from, to } of replacements) stable = stable.split(from).join(to) + const existingRecords = parseJsonlRecords(existing) + const records = parseJsonlRecords(stable) + for (let i = 0; i < records.length; i++) { + preserveFixtureVolatiles(records[i] as Record, existingRecords[i]) + } + return records.map(record => JSON.stringify(record)).join('\n') + '\n' +} + /** * Register the suite: one `describe` per scenario (the golden/log compares and * the header-uniformity guard) plus the fixture guard block (no orphan @@ -215,6 +299,8 @@ export function headerDeltaCount(rawLog: string): number { export function defineAcpSnapshotSuite(options: SnapshotSuiteOptions): void { const { agent, snapshotsDir, scenarios, mode } = options const RECORDING = mode === 'record' + const REFRESHING = mode === 'refresh' + const childMode: 'replay' | 'record' = RECORDING ? 'record' : 'replay' /** The class a scenario's header composition belongs to (see {@link Scenario.headerClass}). */ const classOf = (scenario: Scenario): string => scenario.headerClass ?? 'default' @@ -238,15 +324,18 @@ export function defineAcpSnapshotSuite(options: SnapshotSuiteOptions): void { describe(`snapshot: ${scenario.name}`, () => { // In RECORD mode, only re-run the `recorded` (live-API) scenarios; the // `authored` ones (sidecar-driven errors/cancel) are never re-recorded. + // REFRESH mode is replay-backed and deterministic, so it runs every + // scenario and rewrites the comparable fixtures from that replay run. it.skipIf(RECORDING && !scenario.recorded)('matches the goldens', async () => { const dir = join(snapshotsDir, scenario.name) const input = JSON.parse(await readFile(join(dir, 'input.json'), 'utf8')) as InputScript const overrideFile = join(dir, 'replay.override.json') const workspaceDir = join(dir, 'workspace') const childSessions = scenario.childSessions ?? 0 + const comparesLog = scenario.comparesLog ?? scenario.hasModelTurn const result = await runScenario(input, { agent, - mode, + mode: childMode, fixtureFile: join(dir, 'session.jsonl'), ...existsSync(overrideFile) ? { overrideFile } : {}, // In REPLAY, forward the recorded child fixtures so each subagent session @@ -271,30 +360,47 @@ export function defineAcpSnapshotSuite(options: SnapshotSuiteOptions): void { } // RECORD mode (recorded model scenarios only): persist the freshly-harvested - // logs back to their fixtures — the primary to session.jsonl, each child to - // session..jsonl in harvest order. `--update` refreshes the Vitest - // goldens but NOT these fixtures, so write them here. A non-pinning - // scenario's fixtures are written header-scrubbed, so a re-record can - // never smuggle the full prompt/schema content back into every fixture. + // live logs back to their fixtures. REFRESH mode does the same from a + // keyless replay run for every comparable log, including authored + // scenarios that live record deliberately skips. The primary goes to + // session.jsonl, each child to session..jsonl in harvest order. A + // non-pinning scenario's fixtures are written header-scrubbed, so a + // re-record/refresh can never smuggle the full prompt/schema content + // back into every fixture. const scrub = scenario.pinsHeader === true ? (log: string): string => log : scrubRequestHeaders - if (RECORDING && scenario.recorded && scenario.hasModelTurn) { - expect(result.sessionLogs.length, 'record produced no session log to harvest').toBeGreaterThan(0) + const fixtureFiles = ['session.jsonl', ...Array.from({ length: childSessions }, (_, i) => `session.${i + 1}.jsonl`)] + const existingFixtures = REFRESHING + ? await Promise.all(fixtureFiles.map(file => readFile(join(dir, file), 'utf8'))) + : [] + const replacements = REFRESHING ? refreshFixtureReplacements(result.sessionLogs, existingFixtures) : [] + const writesSessionFixtures = (RECORDING && scenario.recorded && scenario.hasModelTurn) + || (REFRESHING && comparesLog) + if (writesSessionFixtures) { + expect(result.sessionLogs.length, `${mode} produced no session log to harvest`).toBeGreaterThan(0) expect(result.sessionLogs.length, `expected ${childSessions + 1} session logs (parent + children)`) .toBe(childSessions + 1) - await writeFile(join(dir, 'session.jsonl'), scrub((result.sessionLogs[0] as HarvestedLog).content)) + const primary = (result.sessionLogs[0] as HarvestedLog).content + await writeFile(join(dir, 'session.jsonl'), scrub( + REFRESHING ? stabilizeRefreshLog(primary, existingFixtures[0] as string, replacements) : primary, + )) for (let i = 1; i < result.sessionLogs.length; i++) { - await writeFile(join(dir, `session.${i}.jsonl`), scrub((result.sessionLogs[i] as HarvestedLog).content)) + const child = (result.sessionLogs[i] as HarvestedLog).content + await writeFile(join(dir, `session.${i}.jsonl`), scrub( + REFRESHING ? stabilizeRefreshLog(child, existingFixtures[i] as string, replacements) : child, + )) } } - await expect(normalizeStdout(result.rawStdout, ctx)) - .toMatchFileSnapshot(join(dir, 'stdout.golden.jsonl')) + const stdout = normalizeStdout(result.rawStdout, ctx) + if (REFRESHING) { + await writeFile(join(dir, 'stdout.golden.jsonl'), stdout) + } + await expect(stdout).toMatchFileSnapshot(join(dir, 'stdout.golden.jsonl')) // A model turn always produces a log worth comparing; a hook scenario can // produce one without a model turn (a `rejected` turn carrying `hook/*`). - const comparesLog = scenario.comparesLog ?? scenario.hasModelTurn if (comparesLog) { // The harvested logs (primary-first) must match their committed fixtures // 1:1. Each side passes through normalizeSessionLog, scrubbed against ITS @@ -307,7 +413,6 @@ export function defineAcpSnapshotSuite(options: SnapshotSuiteOptions): void { // reason, and config, but not its bulk content (pinned once, in the // `pinsHeader` scenario). expect(result.sessionLogs.length, 'this scenario must persist a session log').toBe(childSessions + 1) - const fixtureFiles = ['session.jsonl', ...Array.from({ length: childSessions }, (_, i) => `session.${i + 1}.jsonl`)] for (let i = 0; i < fixtureFiles.length; i++) { const harvested = scrub((result.sessionLogs[i] as HarvestedLog).content) const fixture = scrub(await readFile(join(dir, fixtureFiles[i] as string), 'utf8')) diff --git a/packages/support/acp-snapshot/tests/suite.spec.ts b/packages/support/acp-snapshot/tests/suite.spec.ts index 0f47010a19..8e79e367f2 100644 --- a/packages/support/acp-snapshot/tests/suite.spec.ts +++ b/packages/support/acp-snapshot/tests/suite.spec.ts @@ -1,11 +1,18 @@ -import { cpSync, mkdtempSync } from 'node:fs' +import { cpSync, mkdtempSync, readFileSync, writeFileSync } from 'node:fs' import { rm } from 'node:fs/promises' import { tmpdir } from 'node:os' import { join } from 'node:path' import { fileURLToPath } from 'node:url' import { afterAll, describe, expect, it } from 'vitest' -import { defineAcpSnapshotSuite, type Scenario } from '../src/index.ts' -import { childFixturePaths, fixtureContext, headerDeltaCount, normalizedHeaders } from '../src/suite.ts' +import { defineAcpSnapshotSuite, type HarvestedLog, type Scenario } from '../src/index.ts' +import { + childFixturePaths, + fixtureContext, + headerDeltaCount, + normalizedHeaders, + refreshFixtureReplacements, + stabilizeRefreshLog, +} from '../src/suite.ts' /** * Unit tests for the suite factory, by running it: two synthetic suites over @@ -55,16 +62,40 @@ const RECORD_SCENARIOS: Scenario[] = [ { name: 'rec-skip', hasModelTurn: true, recorded: false, overridden: true }, ] -// Record mode mutates its snapshots dir, so run it on a throwaway copy — -// except under the documented bootstrap knob, which regenerates the committed -// fixtures/goldens in place. +// Record/refresh modes mutate their snapshots dir, so run them on throwaway +// copies — except record's documented bootstrap knob, which regenerates the +// committed record fixtures/goldens in place. const BOOTSTRAP = process.env.ACP_SNAPSHOT_SPEC_BOOTSTRAP === '1' const recordDir = BOOTSTRAP ? RECORD_SRC : mkdtempSync(join(tmpdir(), 'acp-snap-record-suite-')) if (!BOOTSTRAP) cpSync(RECORD_SRC, recordDir, { recursive: true }) +const refreshDir = mkdtempSync(join(tmpdir(), 'acp-snap-refresh-suite-')) +cpSync(REPLAY_DIR, refreshDir, { recursive: true }) +staleRefreshFixtures(refreshDir) afterAll(async () => { if (!BOOTSTRAP) await rm(recordDir, { recursive: true, force: true }) + await rm(refreshDir, { recursive: true, force: true }) }) +function staleRefreshFixtures(dir: string): void { + writeFileSync(join(dir, 'plain-turn', 'stdout.golden.jsonl'), 'stale stdout\n') + + const plainBehaviorFile = join(dir, 'plain-turn', 'behavior.json') + const plainBehavior = JSON.parse(readFileSync(plainBehaviorFile, 'utf8')) as Record + plainBehavior.echoEnv = true + writeFileSync(plainBehaviorFile, `${JSON.stringify(plainBehavior, null, 2)}\n`) + + writeFileSync(join(dir, 'blocked-log', 'session.jsonl'), [ + '{"type":"session","id":"99999999-8888-4777-8666-555555555555","createdAt":13,"cwd":"/rec/blocked-cwd"}', + '{"type":"hook/result","seq":1,"time":13,"data":{"decision":"stale","durationMs":99}}', + '', + ].join('\n')) + writeFileSync(join(dir, 'authored-error', 'session.jsonl'), [ + '{"type":"session","id":"77777777-8888-4777-8666-555555555555","createdAt":13,"cwd":"/rec/error-cwd"}', + '{"type":"turn/end","seq":1,"time":9,"data":{"error":"stale"}}', + '', + ].join('\n')) +} + describe('defineAcpSnapshotSuite: replay mode', () => { defineAcpSnapshotSuite({ agent: AGENT, snapshotsDir: REPLAY_DIR, scenarios: REPLAY_SCENARIOS, mode: 'replay' }) }) @@ -75,6 +106,27 @@ describe('defineAcpSnapshotSuite: record mode', () => { defineAcpSnapshotSuite({ agent: AGENT, snapshotsDir: recordDir, scenarios: RECORD_SCENARIOS, mode: 'record' }) }) +describe('defineAcpSnapshotSuite: refresh mode', () => { + defineAcpSnapshotSuite({ agent: AGENT, snapshotsDir: refreshDir, scenarios: REPLAY_SCENARIOS, mode: 'refresh' }) +}) + +describe('defineAcpSnapshotSuite: refresh write-back', () => { + it('rewrites stdout and comparable logs from a replay-mode child run', () => { + const stdout = readFileSync(join(refreshDir, 'plain-turn', 'stdout.golden.jsonl'), 'utf8') + expect(stdout).not.toContain('stale stdout') + expect(stdout).toContain('env:{\\"mode\\":\\"replay\\"') + expect(stdout).not.toContain('\\"mode\\":\\"refresh\\"') + + const blocked = readFileSync(join(refreshDir, 'blocked-log', 'session.jsonl'), 'utf8') + expect(blocked).toContain('"decision":"block"') + expect(blocked).not.toContain('"decision":"stale"') + + const authored = readFileSync(join(refreshDir, 'authored-error', 'session.jsonl'), 'utf8') + expect(authored).toContain('"error":"model exploded"') + expect(authored).not.toContain('"error":"stale"') + }) +}) + describe('defineAcpSnapshotSuite: registration contract', () => { it("throws when a scenario's header class has no pinning scenario", () => { expect(() => { @@ -175,3 +227,56 @@ describe('headerDeltaCount', () => { expect(headerDeltaCount(`${other}\n`)).toBe(0) }) }) + +describe('refreshFixtureReplacements', () => { + it('maps fresh ids and cwd values to the existing fixture values, skipping non-replacements', () => { + const log = (content: string): HarvestedLog => ({ id: 'diagnostic', createdAt: 1, content }) + const logs = [ + log('{"type":"session","id":"","cwd":"/same"}\n'), + log('{"type":"session","id":"new-parent","cwd":"/new"}\n'), + log('{"type":"session","id":"new-child","cwd":"/new"}\n'), + ] + const fixtures = [ + '{"type":"session","id":"","cwd":"/same"}\n', + '{"type":"session","id":"old-parent","cwd":"/old"}\n', + ] + expect(refreshFixtureReplacements(logs, fixtures)).toEqual([ + { from: 'new-parent', to: 'old-parent' }, + { from: '/new', to: '/old' }, + ]) + }) +}) + +describe('stabilizeRefreshLog', () => { + it('keeps volatile fixture fields while preserving fresh meaningful payloads', () => { + const fresh = [ + '{"type":"session","id":"new-child","createdAt":200,"cwd":"/new","parentSession":"new-parent","seedLength":1}', + '{"type":"hook/result","seq":1,"time":22,"data":{"decision":"block","durationMs":37}}', + '{"type":"turn/end","seq":2,"time":33,"data":{"error":"fresh error"}}', + '{"type":"tool/result","seq":3,"time":44,"data":{"text":"new-parent in /new"}}', + '{"type":"hook/result","seq":4,"time":55,"data":{"decision":"allow","durationMs":5}}', + '', + ].join('\n') + const existing = [ + '{"type":"session","id":"old-child","createdAt":100,"cwd":"/old","parentSession":"old-parent","seedLength":5}', + '{"type":"hook/result","seq":1,"time":11,"data":{"decision":"stale","durationMs":99}}', + '{"type":"turn/end","seq":2,"data":{"error":"stale"}}', + '{"type":"assistant/message","seq":3,"time":12,"data":{"text":"different type"}}', + '{"type":"hook/result","seq":4,"time":13,"data":{"decision":"stale"}}', + '', + ].join('\n') + + expect(stabilizeRefreshLog(fresh, existing, [ + { from: 'new-parent', to: 'old-parent' }, + { from: 'new-child', to: 'old-child' }, + { from: '/new', to: '/old' }, + ])).toBe([ + '{"type":"session","id":"old-child","createdAt":100,"cwd":"/old","parentSession":"old-parent","seedLength":5}', + '{"type":"hook/result","seq":1,"time":11,"data":{"decision":"block","durationMs":99}}', + '{"type":"turn/end","seq":2,"time":33,"data":{"error":"fresh error"}}', + '{"type":"tool/result","seq":3,"time":44,"data":{"text":"old-parent in /old"}}', + '{"type":"hook/result","seq":4,"time":13,"data":{"decision":"allow","durationMs":5}}', + '', + ].join('\n')) + }) +}) diff --git a/vitest.snapshot.config.ts b/vitest.snapshot.config.ts index ecc8d911aa..d0a8ce6a54 100644 --- a/vitest.snapshot.config.ts +++ b/vitest.snapshot.config.ts @@ -7,10 +7,14 @@ import { defineConfig } from 'vitest/config' // normalized stdout transcript + re-persisted log against committed goldens. // `pnpm run test:snapshot:record` (DSH_SNAPSHOT=record + -u) re-records the // fixtures against the real API and refreshes the goldens. +// `pnpm run test:snapshot:refresh` (DSH_SNAPSHOT=refresh) stays keyless: it +// replays the committed model scripts and writes the current stdout/log goldens +// without calling the live LLM. // // Replay loads no .env (it must never reach the network — a recorded fixture -// drives the model). Record reads DEEPSEEK_API_KEY from the env or a gitignored -// repo-root .env, so a contributor with a key only in .env can still record. +// drives the model), and refresh uses that same keyless replay path. Record +// reads DEEPSEEK_API_KEY from the env or a gitignored repo-root .env, so a +// contributor with a key only in .env can still record. if (process.env.DSH_SNAPSHOT === 'record') { try { process.loadEnvFile(new URL('.env', import.meta.url).pathname) From 5f7177a0a983b0eb2733605026ee0d9bb4dcdb53 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 10 Jul 2026 00:55:47 +0800 Subject: [PATCH 160/232] Stabilize workflow worker coverage wait --- .../tests/workflow-workerthread.spec.ts | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index ecaeed61f6..8d623e8a6f 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -17,6 +17,8 @@ function fakeParent(): Agent { /** The vm-context escape hatch, spelled once: real Worker tests use it to make the WORKER misbehave. */ const ESCAPE = "globalThis.constructor.constructor('return process')()" +/** Linux coverage workers can take longer than Vitest's default waitFor timeout to start executing script. */ +const WORKER_CHILD_START_TIMEOUT_MS = 3_000 /** One controllable child run: the test (or auto mode) settles it. */ interface ControlledRun { @@ -572,7 +574,7 @@ describe('dsh-workflow-workerthread', () => { `), parent: fakeParent(), }) - await vi.waitFor(() => { expect(starts).toBe(1) }) + await vi.waitFor(() => { expect(starts).toBe(1) }, { timeout: WORKER_CHILD_START_TIMEOUT_MS }) handle.cancel('stop now') await vi.waitFor(() => { expect(cancelled).toEqual(['stop now']) }, { timeout: 800 }) // The wedged worker's own completion loses to the in-flight cancel. @@ -602,7 +604,7 @@ describe('dsh-workflow-workerthread', () => { `), parent, }) - await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }, { timeout: WORKER_CHILD_START_TIMEOUT_MS }) const before = Date.now() await handle.dispose() // Bounded by the grace (plus the terminate), never by the 1.5s spin. From af242dbae56df6b4092c3dd026e12a1682045256 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 10 Jul 2026 01:04:06 +0800 Subject: [PATCH 161/232] Preserve snapshot refresh seed boundaries --- packages/support/acp-snapshot/src/suite.ts | 2 +- packages/support/acp-snapshot/tests/suite.spec.ts | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/packages/support/acp-snapshot/src/suite.ts b/packages/support/acp-snapshot/src/suite.ts index f97cb82c59..27de939d3d 100644 --- a/packages/support/acp-snapshot/src/suite.ts +++ b/packages/support/acp-snapshot/src/suite.ts @@ -245,7 +245,7 @@ export function refreshFixtureReplacements(logs: HarvestedLog[], fixtures: strin function preserveFixtureVolatiles(record: Record, existing: Record | undefined): void { if (existing === undefined || existing.type !== record.type) return if (record.type === 'session') { - for (const field of ['id', 'createdAt', 'cwd', 'parentSession', 'seedLength'] as const) { + for (const field of ['id', 'createdAt', 'cwd', 'parentSession'] as const) { if (field in record && field in existing) record[field] = existing[field] } return diff --git a/packages/support/acp-snapshot/tests/suite.spec.ts b/packages/support/acp-snapshot/tests/suite.spec.ts index 8e79e367f2..ae01190c01 100644 --- a/packages/support/acp-snapshot/tests/suite.spec.ts +++ b/packages/support/acp-snapshot/tests/suite.spec.ts @@ -271,7 +271,7 @@ describe('stabilizeRefreshLog', () => { { from: 'new-child', to: 'old-child' }, { from: '/new', to: '/old' }, ])).toBe([ - '{"type":"session","id":"old-child","createdAt":100,"cwd":"/old","parentSession":"old-parent","seedLength":5}', + '{"type":"session","id":"old-child","createdAt":100,"cwd":"/old","parentSession":"old-parent","seedLength":1}', '{"type":"hook/result","seq":1,"time":11,"data":{"decision":"block","durationMs":99}}', '{"type":"turn/end","seq":2,"time":33,"data":{"error":"fresh error"}}', '{"type":"tool/result","seq":3,"time":44,"data":{"text":"old-parent in /old"}}', From 3191cb9404f81aa43f7e83ec606cce2e8f0e1b60 Mon Sep 17 00:00:00 2001 From: kingwl Date: Thu, 9 Jul 2026 15:14:17 +0800 Subject: [PATCH 162/232] docs(rfc): propose the approval seam and the subprocess sandbox --- docs/rfc/INDEX.md | 2 + .../feature/2026-07-06-approval-seam.md | 133 +++++++++++ .../proposed/feature/2026-07-06-sandbox.md | 217 ++++++++++++++++++ 3 files changed, 352 insertions(+) create mode 100644 docs/rfc/proposed/feature/2026-07-06-approval-seam.md create mode 100644 docs/rfc/proposed/feature/2026-07-06-sandbox.md diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index ba2b9d88dc..409e8f42e4 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -11,6 +11,8 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [Agent Client Protocol (ACP) support — drive the coding agent from external editors](proposed/feature/2026-06-14-acp-agent-client-protocol.md) | 2026-06-14 | | [Multiplex concurrent ACP sessions over one connection](proposed/feature/2026-06-14-acp-multi-session.md) | 2026-06-14 | | [Pre-tool input rewrite — a consistent design](proposed/feature/2026-06-30-pre-tool-input-rewrite.md) | 2026-06-30 | +| [The approval seam — one-shot permission decisions over a waterfall of answerers](proposed/feature/2026-07-06-approval-seam.md) | 2026-07-06 | +| [The subprocess sandbox — confinement seam, native runners, escalation, and per-session modes](proposed/feature/2026-07-06-sandbox.md) | 2026-07-06 | | [Claude Code and Codex subagent backends (out-of-process delegation to external coding agents)](proposed/feature/2026-07-07-claude-code-and-codex-subagent-backends.md) | 2026-07-07 | ### Simplification diff --git a/docs/rfc/proposed/feature/2026-07-06-approval-seam.md b/docs/rfc/proposed/feature/2026-07-06-approval-seam.md new file mode 100644 index 0000000000..76defba74e --- /dev/null +++ b/docs/rfc/proposed/feature/2026-07-06-approval-seam.md @@ -0,0 +1,133 @@ +# RFC: The approval seam — one-shot permission decisions over a waterfall of answerers + +Status: proposed + +## Problem + +Two callers need to put one question — "may this specific action proceed?" — to a human, and neither has a channel. `tools/pre-execute`'s `ask` decision (produced today by the Claude-Code hook bridge's `permissionDecision: ask`) degrades to deny because nothing services it. The [sandbox RFC](2026-07-06-sandbox.md)'s escalation phase needs the same channel for its post-denial one-shot retry. Without a shared seam, each would invent its own outcome vocabulary, UI routing, cancellation, and audit trail — and a deployment with no UI at all needs a guarantee that an unanswerable question can never grant anything. + +The routing problem is ownership: an approval prompt must reach the editor session that owns the asking agent (the ACP bridge multiplexes N sessions over one connection), fail closed for agents nobody owns (in-process subagents, tests), and stay out of deployments that compose no UI (headless, CI). + +## Proposal + +One package, `dsh-approval` (`packages/approval/approval`), owning the vocabulary and the `ctx.approval` service — the MECHANISM. The POLICY — who answers, and whether a session is asked at all — lives outside it: answerers are `approval/request` waterfall listeners registered by the plugins that own the channel (the ACP bridge; future terminal UIs; test scripts), and a per-session policy tier can decide before any human is involved. Consumers (`dsh-tools`' ask routing, the sandbox escalation gate) resolve a question to a closed outcome and derive their own tool results from it. Deliberately ONE package, not the capability-seam three (see Alternatives). + +### How a deployment uses it + +One `cordis.yml` entry mounts the seam; not loading it is the opt-out — consumers degrade to their historical fail-closed behavior with zero approval code registered: + +```yaml +- id: approval + name: '@deepseek-ai/dsh-approval' + # config: + # policy: never # deployment default for sessions without an override; 'ask' when omitted +``` + +The entry alone provides mechanism, not a channel: with no answerer composed, every ask resolves `unavailable` and the asking tool call denies — fail-closed needs no configuration. Composing the ACP app (`@deepseek-ai/dsh-acp-agent`, as in the `examples/sandbox-acp-agent` composition this design lands with) completes the loop: its bridge registers an answerer that prompts the owning editor session via `session/request_permission`, so a hook's `ask` or an escalation request surfaces as a one-shot Allow/Reject prompt attached to the already-streamed tool call. `policy: never` is the unattended stance — every ask auto-rejects deterministically, stated in the system prompt, no human in the loop. `policy` is validated against the closed list at plugin load; anything else throws. + +What a composed deployment observes: `allowed-once` lets exactly that call proceed; rejection, dismissal, and channel absence deny with three distinct reasons the model can tell apart; every ask lands a durable `approval/asked`/`approval/decided` pair on the asking agent's session log; nothing about a grant persists past the call that asked. + +One ask under this composition, verbatim from the sandbox example's recorded `escalation-approved` scenario — the model requests a sandbox escalation, the gate asks, the bridge prompts the owning editor, the user clicks Allow once: + +``` +tool/call bash {"command": "printf 'escalated\n' > escalated.txt && cat escalated.txt", + "sandbox_permissions": "workspace-write", + "justification": "the user asked to write escalated.txt in the workspace"} +approval/asked {"toolName": "bash", "callId": "call_00_…", + "reason": "escalate sandbox to workspace-write: the user asked to write escalated.txt in the workspace"} + → session/request_permission {"toolCall": {"toolCallId": "call_00_…"}, + "options": [{"optionId": "allow-once", "name": "Allow once", "kind": "allow_once"}, + {"optionId": "reject-once", "name": "Reject", "kind": "reject_once"}]} + ← the user picks "Allow once" on the prompt the editor attaches to the streamed bash call +approval/decided {"outcome": "allowed-once"} +tool/result "escalated" — this one call ran under the wider mode; the grant died with it +``` + +The `escalation-rejected` twin ends in `{"outcome": "rejected"}` instead: nothing executes, and the model's result carries the asker's verbatim fail-closed text (`the user rejected escalating this command to "workspace-write"`). A hook's `permissionDecision: ask` rides the identical wire; only the asker and its deny texts differ (§ Ask routing in dsh-tools). Headless, the same request skips the prompt entirely and settles `unavailable`. + +### Design detail + +#### The seam: mechanism and policy split + +`ApprovalService.request(req)` always resolves to a closed `ApprovalOutcome` — `allowed-once` / `rejected` / `cancelled` / `unavailable` — and never rejects. The service is the mechanism: it dispatches the `approval/request` waterfall, races the request's `AbortSignal` (abort settles `cancelled`; a late answer is discarded, never double-audited), contains a throwing answerer as `unavailable`, normalizes a rogue non-vocabulary return to `unavailable`, and lands the log-only audit pair `approval/asked`/`approval/decided` (paired by the branded `ApprovalRequestId`) on the requesting agent's session log. Grants are one-shot by definition: `allowed-once` authorizes the single asked-about action, never a class of future ones, and the service stores nothing between requests. + +Answerers are the policy, and they are `approval/request` waterfall listeners. The waterfall buys exactly what the seam needs: with zero listeners the dispatch falls through to the caller-supplied default — `unavailable`, so fail-closed needs no configuration and no code in any deployment; a listener that recognizes the request's agent answers by returning an outcome without calling `next()` (the decision slot is single-occupancy, first answer wins — the same documented semantics as the `fs/write-intent` gate); a listener that does not recognize the agent MUST delegate via `next()` so another answerer or the default gets the question; and listeners dispose with their owning fiber, so an unloaded UI plugin degrades the next ask to `unavailable` instead of leaving a dangling channel. Registration order across sibling plugins is not load-order deterministic (the loader starts siblings concurrently), so a deployment composes ONE terminal answerer and reserves `prepend` listeners for decide-or-delegate gates. + +`ApprovalRequest` carries the asking `agent` (routes the question; receives the audit events), the `toolName`, the optional exact `callId`, the asker's human-readable `reason`, and the optional `signal`. The vocabulary is deliberately self-contained — it names the tool-call by the `CallId` brand from `dsh-llm` and never imports `dsh-tools` — because `dsh-tools` depends on `dsh-approval` (the ask routing) and a `ToolCallView` import would close a package cycle. It deliberately does NOT carry tool arguments: a UI answerer attaches the prompt to the already-streamed tool call via `callId` instead of re-rendering the call. + +#### Ask routing in dsh-tools + +`ToolRegistry.execute()` resolves an `ask` decision through the seam before the shared deny path: `allowed-once` proceeds to dispatch, and the three non-grants deny with distinct reasons — "the user rejected…", "…was cancelled", "…no approval channel is available" — so the model can tell a human "no" from an absent channel. The seam is consumed opportunistically (`ctx.get('approval')`, the `tool-bash`/`agent-loop` pattern), not statically injected: a deployment that composes no ApprovalService keeps the historical ask→deny degrade verbatim, an unmount mid-session degrades the same way on the next ask, and the registry's fiber never gates on the seam's presence. An agent-less execution also degrades — without an agent there is no session to audit to and no UI to route to. + +#### The per-session policy tier + +The seam also owns the session-scoped approval policy — the approval knob of the two-knob per-session switching design ([the sandbox RFC](2026-07-06-sandbox.md) § Per-session modes is the pattern's home: one log-only event per knob, a pure fold, THE write path, ACP config-option advertisement, and turn-anchoring). `ApprovalPolicy` is `'ask' | 'never'`, and `effectiveApprovalPolicy(events) ?? Config.policy` (default `'ask'`) decides every request BEFORE any interactive answerer: the service resolves a `'never'` session to `'rejected'` INSIDE `request()`, before dispatching the waterfall at all — no listener registration, including a later `prepend`, can sit ahead of it — while `'ask'` dispatches unchanged (fail-closed `'unavailable'` with nobody composed, exactly the prior behavior). Visibility follows the switching design's two layers with one asymmetry: the prompt section states ONLY `'never'` (deterministic, availability-independent — "you will be prompted" would overclaim in a composition with no answerer, and absence under a logged header is exactly how the narrator reads `'ask'` back), the narrator injects at most one coalesced notice per switch, and the audit pair still lands on every ask, including the policy's auto-rejections. + +#### The ACP answerer + +The bridge registers the first real answerer: it resolves the owning session through its existing `WeakMap` reverse map, issues `session/request_permission` with the request's `callId` as the `toolCall` reference and the one-shot options `allow_once`/`reject_once`, and maps the response — selected `allow-once` → `allowed-once`, any other selection → `rejected` (an unknown optionId from a non-conforming client never grants), client `cancelled` → `cancelled`. A request for a foreign agent — or one without a `callId`, since the protocol prompt must attach to a tool call — delegates via `next()`. A rejected RPC (client gone mid-prompt) propagates to the service, which contains it as `unavailable`. Whether a call ASKS at all is policy — a hook or `tools/pre-execute` plugin returning `ask` — never the bridge's own judgment. + +The reverse-map ownership seam [the ACP support RFC](2026-06-14-acp-agent-client-protocol.md) laid down is exactly what the answerer routes through, and per-session permission ownership (the blocker recorded in [the multi-session RFC](2026-06-14-acp-multi-session.md)) is what it implements. + +#### Audit, and what the model sees + +`approval/asked` / `approval/decided` are log-only session events (the `hook/invoked`/`hook/result` precedent): durable, replayable, never in the model transcript. The model's entire view of an approval is the tool result the asker derives from the outcome — reconstructability holds because that result is an ordinary logged `tool/result`. One `decided` per `asked`, whatever the outcome, including an already-aborted signal (settled `cancelled` without dispatching) and a contained answerer failure. + +#### Entities and dependencies + +One new package, no cycles: `dsh-approval` peers on `cordis`, `dsh-session` (event-map merge + append), `dsh-agent` (the `Agent` type), `dsh-llm` (`CallId`, via `dsh-brand`). `dsh-tools` and `dsh-acp` each gain a peer edge onto it; the escalation phase's asker lives in `dsh-tool-bash` (see [the sandbox RFC](2026-07-06-sandbox.md) § Escalation), so the sandbox family keeps its ZERO-edge relation (the executor contributes the per-call override mechanism, and transport seams never ask humans questions). The seam is one package, not the capability-seam three: the service body (dispatch + audit) has no replaceable implementation — the replaceable part is the answerer listeners, and those live with their owners (the bridge; future terminal UIs; test scripts). `@cordisjs/plugin-capability` stays orthogonal (a static grant registry answers "is this already authorized", not "ask the user now"), and `subagent-acp`'s child-side `permission` auto-answer is untouched — routing a child's approvals to the parent session remains an explicit future design. + +### Testing + +Unit tier: the service's outcome branches (fail-closed default, first-wins slot, delegation, containment, rogue-value normalization, abort-before and abort-during with late-answer discard, fresh ids, fiber-disposal degradation) and the policy tier (both values × dispatch/decide, a `'never'` decision unbypassable even by an answerer prepended AFTER the service, audit pair intact) in `dsh-approval`; the ask routing matrix (grant dispatches; three non-grant reasons pinned verbatim; unmounted and agent-less degrades; the registry's own exhaustiveness backstop against a non-conforming stand-in) in `dsh-tools`; the answerer (wire shape of the prompt, outcome mapping, unknown-option conservatism, foreign-agent and call-less delegation) driven through a real bridge + scripted client in `dsh-acp`. + +Snapshot tier: the harness accepts scripted permission answers (`permissionAnswers` in a scenario's `input.json`, consumed FIFO; an unscripted prompt answers `cancelled`, fail closed). The seam's wire is recorded end to end in the sandbox example's suite: both escalation branches drive `session/request_permission` through this seam over scripted answers (grant and rejection), and the recorded `mode-switching` scenario pins the `'never'` prompt sentence and the policy-switch notice ([the sandbox RFC](2026-07-06-sandbox.md) § Testing). A hook-driven recorded `ask` (extending the hook matrix's `hook-cc-pretool-ask` with a mounted ApprovalService) remains undone; its deny texts are pinned verbatim at the unit tier. + +## Alternatives considered + +- **A single registered provider instead of waterfall listeners** — rejected: a `registerProvider()` surface forces every composition question — allowlist pre-filters, external hook deciders, scripted test answers, a policy gate in front of a human — inside one provider implementation. The waterfall gets composition, fail-closed absence, and HMR disposal from machinery the runtime already has; the seam's JSDoc pins the single-decision-slot convention instead of inventing a provider registry. +- **[The ACP support RFC](2026-06-14-acp-agent-client-protocol.md)'s inline `tools/pre-execute` permission gate** — rejected, and superseded by this seam: prompting for every bridge-owned call hardwires the asking POLICY into the UI plugin, cannot serve a second asker (sandbox escalation happens after execution starts, with no pre-execute moment), and leaves hooks' `ask` — the vocabulary the interception seams already ship — unserviced. +- **A generic user-interaction seam (`ctx.userInteraction`) instead** — rejected: the two share a skeleton (route by agent, block for a human, handle absence), but approval's contract is narrower in every dimension that matters: a closed outcome vocabulary instead of free text, a protocol-native prompt attached to a tool call instead of a generic form, mandatory fail-closed absence, and audit events. If a generic seam lands later, sharing provider plumbing can be evaluated then. +- **Static optional injection in `dsh-tools`** — rejected: the vendored cordis `Inject` type has no optional flag — the object form maps service names to intercept config, and a declared inject gates the fiber. `ctx.get('approval')` is the documented opportunistic-consumption pattern (the `tool-bash` owner-token lookup, the loop's persistence probe), reads presence per call, and degrades correctly across HMR without extra machinery. +- **The capability-seam three-package split** — rejected: interface/implementation/consumer fits a seam whose implementation is swappable (bash-local vs bash-sandbox). Here the service body is fixed mechanism and the variable part is listeners that live with their owners — splitting would manufacture an implementation package with nothing in it ("don't split preemptively"). +- **Offering `allow_always` now** — rejected: the protocol can express it, but honoring it means designing grant storage, scope identity (call? path? prefix? session? time window?), and revocation. Advertising an option the harness cannot honor manufactures doomed grants; it stays an open question in the sandbox RFC. + +## Acceptance criteria + +- With an ApprovalService and an answerer composed, a hook's `ask` reaches a human and `allowed-once` dispatches the tool; every other outcome denies with its distinct reason. +- A `'never'` session auto-rejects every ask without prompting anyone, states the policy in its prompt, and narrates switches (the shared switching mechanics are [the sandbox RFC](2026-07-06-sandbox.md)'s acceptance criteria). +- Every unanswerable path fails closed to `unavailable`: no service (degrade, verbatim historical text), no listener, a foreign or agent-less request, a throwing answerer, a rogue return value, a dead client connection. +- Every `request()` lands exactly one `approval/asked`/`approval/decided` pair on the asking agent's log, replayable, invisible to the model transcript. +- Prompts route per-session through the bridge's ownership map; one session's prompt can never reach another session's editor. +- A deployment that composes nothing new behaves byte-identically (the snapshot suite's goldens are unchanged). + +## Risks + +- **Two decide-eager answerers race for the slot.** Sibling-plugin listener order is not deterministic, so the seam cannot referee competing terminal answerers — mitigated by convention (one terminal answerer per deployment; `prepend` only for decide-or-delegate gates) rather than a priority mechanism the event bus does not have. +- **Production exercise rests on one composition.** `ask` has two producer families — the hook bridges through `tools/pre-execute`, and sandbox escalation through its own gate — with the wire recorded in the sandbox example's snapshot suite, so the seam's real-world coverage is that one composition until more deployments compose it. +- **Ownership keys on `Agent` object identity.** The answerer resolves sessions through the bridge's existing WeakMap; every current path hands the same object through the loop and the seams, but a future boundary that clones or proxies agents would make the bridge delegate and fail closed — safe, but silently UI-less — and would need session-id matching instead. + +## FAQ + +Behavioral and usage questions only — every "why not X?" design question lives in [Alternatives considered](#alternatives-considered), whose job is exactly that. + +- **What happens in a deployment with no answerer at all (headless, CI)?** Every ask falls through the empty waterfall to `unavailable` and the tool call denies with the "no approval channel is available" reason. Fail-closed is the zero-listener default, not a configuration. +- **Can a grant persist — "always allow this"?** No. `allowed-once` authorizes the single asked-about action and the service stores nothing between requests; `allow_always` is deliberately not advertised until grant storage is designed. +- **What does the model see of an approval?** Only the tool result the asker derives from the outcome — the audit pair never enters the transcript. The three non-grant reasons are distinct, so the model can tell a human "no" from a dismissed prompt from a missing channel. +- **Who decides whether a call asks in the first place?** Policy producers: a hook returning `permissionDecision: ask`, any `tools/pre-execute` listener, or the sandbox escalation gate. The seam and the bridge only route and answer; neither injects its own judgment about what deserves a prompt. +- **What happens when the user dismisses the prompt, or the turn aborts mid-ask?** Dismissal maps to `cancelled` with its own deny text. An already-aborted signal settles `cancelled` without dispatching; an abort during the ask discards the late answer — one audit pair either way, never two. +- **What if the client answers with an option the harness never offered?** Any selection other than the offered `allow_once` maps to `rejected` — an unknown optionId from a non-conforming client can never grant. +- **How do subagents' approvals route?** An agent no answerer owns delegates through the whole waterfall and fails closed — in-process subagents are unanswerable today by design. `subagent-acp`'s child-side auto-answer is untouched; routing a child's asks to the parent's editor is an explicit future design. +- **What does `policy: 'never'` actually change at runtime?** The service resolves every ask for that session to `rejected` before dispatching any answerer (in-service, so no registration order can bypass it); the system prompt states the policy; switches are narrated at boundaries; the audit pair still lands for every auto-rejection. +- **What happens across a hot reload, or when the UI plugin unloads mid-session?** Answerers dispose with their owning fiber, so the next ask degrades to `unavailable` instead of hanging on a dead channel; remounting re-registers the answerer with no catch-up state. +- **Where does the user see what they are approving?** On the tool call itself: the prompt attaches to the already-streamed call via `callId` — arguments included — and adds the asker's human-readable `reason`; the request carries no argument copy of its own. + +## Prior art + +In-repo precedents this design copies or contrasts with: + +- The `fs/write-intent` gate (`packages/fs/fs/`) — the documented single-occupancy decision-slot waterfall semantics (first answer wins, delegate via `next()`) the answerer contract reuses. +- `hook/invoked`/`hook/result` — the log-only audit-pair precedent `approval/asked`/`approval/decided` follows; [the hook-bridges RFC](../../implemented/feature/2026-06-30-hook-bridges.md) ships `permissionDecision: ask`, the first producer. +- [The interception-seams RFC](../../implemented/feature/2026-06-30-interception-seams.md) — the `tools/pre-execute` `allow`/`deny`/`ask` vocabulary whose `ask` this seam services. +- [The ACP support RFC](2026-06-14-acp-agent-client-protocol.md) — the `WeakMap` ownership seam the answerer routes through; [the multi-session RFC](2026-06-14-acp-multi-session.md) — the per-session permission-ownership blocker this implements. +- The opportunistic `ctx.get()` consumption pattern (`tool-bash`'s owner-token lookup, the loop's persistence probe) — how `dsh-tools` consumes the seam without gating its fiber on it. diff --git a/docs/rfc/proposed/feature/2026-07-06-sandbox.md b/docs/rfc/proposed/feature/2026-07-06-sandbox.md new file mode 100644 index 0000000000..7a9f514fb3 --- /dev/null +++ b/docs/rfc/proposed/feature/2026-07-06-sandbox.md @@ -0,0 +1,217 @@ +# RFC: The subprocess sandbox — confinement seam, native runners, escalation, and per-session modes + +Status: proposed + +## Problem + +A coding agent needs this product path: bash subprocesses — and the hook commands that ride them — execute under a restricted file sandbox by default; if and only if the sandbox actually denies an operation, the model may request one user approval for that same operation and, once granted, retry it once with wider permissions. An every-tool boundary is deliberately NOT the claim: fs/web/todo execute in-process where an `execve` wrapper is meaningless (§ In-process tools), and the cross-family boundary is staged follow-up work (§ Deferred phases). Without a shared vocabulary, every tool reinvents approval fields, denial parsing, retry matching, and permission-state hints. + +The harness is an SDK, so confinement must be a capability developers COMPOSE: whether to sandbox, and which backend per platform, belongs in the leaf `cordis.yml` as a first-class entry — not inside one executor's private machinery. And the first-choice runner, `bwrap`, is unusable on exactly the hosts a sandbox matters most (minimal containers, disabled unprivileged userns, LSMs that deny `mount`), so a fallback runner has to ship with the SDK rather than be assumed on the host. + +Confinement alone leaves two gaps. A denial with no escalation path is terminal — the model can only give up, which pressure-cooks operators into configuring `workspace-write` or `danger-full-access` globally and defeats the sandbox. And the model-visible knobs (the sandbox mode, the approval policy) change over an agent's lifetime — an ACP user flips a per-session setting, an operator edits `cordis.yml` while the process is down — while the model must never act on a stale belief about them: what IS the state on every request, what changed while the agent lives, and what changed while nobody was watching all need answers. + +## Proposal + +One seam, one per-platform chain of local backends, one consumer, and two levers on top: a per-call escalation path and per-session runtime modes. Everything below composes from the leaf `cordis.yml`; nothing touches `agent-loop`. The scope is deliberately bounded: the phases this RFC names but does not design — per-session workspace root, cross-family fs enforcement, the `subagent-acp` consumer, more environments, a Windows chain — are listed under § Deferred phases, each a follow-up design, not a config knob. + +### How a deployment uses it + +Three `cordis.yml` entries turn an unconfined coding agent into the sandboxed product path; the `examples/sandbox-acp-agent` composition this design lands with is exactly this tree: + +```yaml +- id: sandbox + name: '@deepseek-ai/dsh-sandbox-local' # the per-platform runner provider (ctx.sandbox) +- id: bash + name: '@deepseek-ai/dsh-bash-sandbox' # the confined executor, replacing dsh-bash-local behind ctx.bash + config: + mode: read-only # the deployment default every session starts from + workspaceRoot: !!js process.cwd() # the boundary workspace-write may write under +- id: approval + name: '@deepseek-ai/dsh-approval' # the escalation gate's channel (the approval RFC) +``` + +The swap is invisible to every consumer of `ctx.bash`: the bash tools, hook commands, and background tasks run exactly as before, spawned through the wrapped argv the provider returns. Deleting the `sandbox` and `bash` entries and loading `@deepseek-ai/dsh-bash-local` instead is the opt-out — execution is unconfined again and the escalation fields vanish from the tool schema, because they are capability-gated on the mounted executor, not on configuration. Omitting only `approval` keeps confinement but fails every escalation closed with its own error text. + +Misconfiguration fails loud: `mode` outside the closed vocabulary is rejected at plugin load, and a host with no usable backend throws the structured `SANDBOX_UNAVAILABLE` — at `confine()` before the command ever spawns — rather than degrading to unconfined execution. `runnerCommand` on `dsh-sandbox-local` is the operator's explicit assertion of a bwrap-compatible runner (chain and probes skipped); it doubles as the deterministic fake-runner seam for keyless tests. + +What the model then experiences: denied file effects come back as result facts with a `[sandbox: file access denied under mode]` marker plus standing instructions not to retry around them; when a wider mode exists, the schema offers `sandbox_permissions` + `justification` for the one-approval escalated retry; the system prompt deliberately does NOT state the sandbox mode — the model learns the boundary from the marker (which names the mode) when it hits it, instead of preemptively refusing work a standing declaration discourages. What an ACP editor experiences: a `sandbox-mode` and an `approval-policy` config-option select per session (each advertised only when its knob is composable), switchable at runtime; a sandbox switch simply changes what subsequent commands may do, while an approval-policy switch to `'never'` is stated in the prompt and narrated. + +The product path, concretely (the escalation arc is verbatim from the recorded `escalation-approved` scenario; the denial leg is pinned on the real-kernel e2e tier): + +``` +tool/result … [sandbox: file access denied under read-only mode] ← the write RAN; the kernel refused it +tool/call bash {"command": "printf 'escalated\n' > escalated.txt && cat escalated.txt", + "sandbox_permissions": "workspace-write", + "justification": "the user asked to write escalated.txt in the workspace"} + → the editor is prompted on this very call (session/request_permission through the approval seam); Allow once +tool/result "escalated" — THIS call ran under workspace-write and its result facts say so; the session stays read-only +``` + +Reject instead and nothing executes: the result is the verbatim `the user rejected escalating this command to "workspace-write"`, and the teaching makes that final — no re-ask. + +### Design detail + +#### Grounding — verified against the code + +- Runtime OS subprocesses exist at exactly two sites: the `ctx.bash` seam's single spawn (`packages/bash/bash-local/src/run.ts`; hook commands flow through `ctx.bash`, so bash confinement covers them transitively) and `subagent-acp`'s child agents (`packages/subagent/subagent-acp/src/run.ts`) — the second consumer that makes a shared seam due rather than preemptive under the [capability seams RFC](../../implemented/architecture/2026-06-13-capability-seams.md)'s "don't split preemptively" rule. +- Everything else executes inside the harness process (fs is in-process `node:fs`, web is in-process `fetch`, every `ToolDefinition.execute()` closes over `ctx`): an OS sandbox wraps `execve` and cannot wrap an in-process function call, so "sandbox any tool" is policy at each tool's seam, never a mechanical transport change. +- `tools/pre-execute` (`allow`/`deny`/`ask`) exists, with `ask` serviced by [the approval seam](2026-07-06-approval-seam.md); the fs intent gates are version guards with no mode input yet. +- `dsh-bash`'s request/spec split (`BashExecRequest` → `resolve()` → `BashExecSpec`) carries per-call fields the way escalation needs — `owner` is the template: request-optional, spec required-but-nullable, carried verbatim — and the result types already speak `SandboxMode`, so a per-call policy field adds no dependency edge. +- The pinned-header snapshot design means a schema/description change churns at most one pinning fixture per suite, and the escalation fields are advertised only under a sandboxing executor — so they live in exactly one pinned header, the sandbox example suite's `mode-switching` fixture. + +#### The seam: `ctx.sandbox` + +`dsh-sandbox` owns the vocabulary and the `SandboxProvider` contract: `confine(argv, policy)` returns the argv to spawn INSTEAD of the caller's own — wrapped so the process and everything it spawns run confined — plus the `enforcement` completeness the selected backend achieves, its denial dialect (`denialSignatures`, the stderr substrings that backend's kernel prints on a denied file effect), and its runner-failure dialect (`runnerFailureSignatures`, how the runner ITSELF failing — and therefore the command never running — identifies itself); with no usable backend it throws the fail-closed `SANDBOX_UNAVAILABLE` error, never a silent unconfined passthrough. The vocabulary: `SandboxMode` (`read-only` / `workspace-write` / `danger-full-access`, FILE effects only — network and process visibility are not claimed), `SandboxEnforcement` (`full` / `partial`), `SandboxPolicy` (mode + workspace root). + +Policy rides each CALL, not the provider: two consumers may confine under different policies at the same instant (bash under `read-only` while a confined child agent keeps its state directory writable), and an approved escalated retry is a new call with a wider policy — inexpressible under a config-fixed provider mode. + +The seam confines SAME-WORLD subprocesses only: a backend shares the host's filesystem and kernel. Containers, microVMs, and remote executors are NOT backends of this seam — they replace whole capability implementations (`ctx.bash`, `ctx.fs`) as environment-coherent groups, because an agent whose bash runs in a container while its fs tools write the host lives in two split worlds. + +Left open, for the phase that needs them: whether network restriction arrives as a separate `network_mode` or merges into `sandbox_mode` once a runner enforces both, and whether `SandboxPolicy` grows extra writable-root grants now (the launcher already speaks `--rw `) or only when escalation needs them. + +#### Local backends and the shipped launcher + +`dsh-sandbox-local` selects BY PLATFORM, once per lifetime, and caches the verdict: each platform names its runner chain, a chain of one is selected directly — probing arbitrates between candidates, and a sole candidate leaves nothing to arbitrate — and a chain of several is probed FUNCTIONALLY in preference order (build and enforce a real profile, never `--version` — a present-but-unusable `bwrap` must fail its probe). Linux: `bwrap` first (its mount profile is closest to the mode vocabulary: whole tree read-only, fresh `/dev`+`/proc`, `workspace-write` adds an ephemeral `/tmp` and rebinds the workspace root; deliberately no `--unshare-pid` and no network claim), else the npm-distributed `landlock-run` Landlock launcher. darwin: `sandbox-exec` speaking a Seatbelt (SBPL) profile — allow-default with `(deny file-write*)` plus write allow-lists, every granted root canonicalized because Seatbelt matches resolved paths (`/tmp` IS `/private/tmp`) — unprobed, the sole candidate. A platform with no chain fails closed at `confine()`; an unprobed runner that turns out unusable fails closed at EXECUTION instead — it refuses to run the command, and every wrap carries `runnerFailureSignatures` (the runner's own error prefix, which also matches the shell's runner-not-found message) so the consumer classifies that as a SANDBOX failure, never a task failure: on either path the command neither runs unconfined nor slips through as a plain failure. A non-empty `runnerCommand` config is the operator's assertion of a runner that fully enforces the bwrap-shaped profile — chain and probes skipped; it doubles as the deterministic fake-runner seam for keyless tests. It is not exempt from fail-closed execution: its wrap carries argv0-scoped outer-shell failure shapes (`exec: : not found`, `: No such file or directory`, `: Permission denied`) as its runner-failure dialect, so a missing or unexecutable configured runner classifies as a sandbox failure like every other rung — never as a failing command, and never as a denial. + +The launcher is a ~300-line C program (plain C11 over the raw Landlock UAPI — no libraries beyond a statically linked musl, so the audit surface is that one file plus the kernel's stable syscall contract): `--ro ` / `--rw ` grants, `--`, the wrapped argv; it installs the ruleset on itself and `exec`s (rulesets are inherited across `execve`, and it sets `no_new_privs` before restricting); `--probe` enforces a maximal ruleset in a short-lived child and exits 0 only when the kernel actually enforces; launcher failures exit 125 without exec'ing. + +The launcher lives in its own repository and reaches the harness as the npm package family [`node-addon-landlock-run`](https://www.npmjs.com/package/node-addon-landlock-run) (the per-platform-package pattern of `node-addon-require-builtin` and esbuild): an entry package — `dsh-sandbox-local`'s one runtime dependency — plus per-platform binary packages selected at install time by npm's `os`/`cpu` fields. The entry package owns the launcher's CLI contract end to end (`launcherPath()` resolution with a never-existing fallback, the functional `probe()`, `grantArgs()` flag spelling), versioned together with the binary so probe-report parsing can never drift against it; the harness keeps only the policy side, `landlockProfileArgs()` mapping the mode vocabulary to grants. Native-only per-architecture builds, pack gates (binary presence, executability, ELF architecture), and the byte-pinned publish rehearsal are that repository's release pipeline; this repo's Landlock CI legs install the published family from the registry — the true consumer path — and prove real-kernel confinement through it. + +Profile parity is honest rather than identical: under Landlock, `read-only` grants `--ro /` plus `--rw /dev/null` (the node, not `/dev` — the host's `/dev/shm` is a persistent shared tmpfs), and `workspace-write` grants the HOST `/tmp` where bwrap's is ephemeral; under Seatbelt, `read-only` likewise grants only the `/dev/null` literal, and `workspace-write` grants the host `/tmp` plus the per-user darwin temp dir (`os.tmpdir()` — the platform's real temp area for mkstemp-family tools; omitting it would deny what the mode promises). Every wrap carries the rung's denial dialect (`denialSignatures`: EROFS text under bwrap, EACCES under Landlock, EPERM under Seatbelt) so consumers match the active backend rather than a cross-runner union. Enforcement is honest per ABI level: an older kernel enforces the subset its ABI governs (path truncate is ungoverned before ABI v3), the probe's report line distinguishes the cases, and every confined result carries the structured `enforcement: 'full' | 'partial'` fact — refusing partial enforcement would deny the fallback to precisely the older-kernel hosts that need it. The bwrap and Seatbelt profiles govern every promised file effect by construction, so their passing probes always report `full`. + +#### The bash consumer + +`dsh-bash-sandbox` extends `LocalBashExecutor` (spawn mechanics, process-group kills, spill files, background tasks, credential scrub inherited verbatim) and hands `ctx.sandbox` the exact `['bash', '-c', command]` argv it is about to spawn. A sandbox denial is a RESULT FACT, not an error: the command RAN and the kernel refused a file operation, so `result.sandbox.denied` is orthogonal to `exitCode`/`signal`. Classification is conservative text inference over the collected stderr tail against the WRAP's own dialect, so a backend is never credited with a denial text its kernel does not speak (bare EPERM under a Linux runner names non-file boundaries the mode vocabulary does not govern); the known residual false positive is non-sandbox text in the active dialect (an ssh auth failure under Landlock, a refused `kill` under Seatbelt), and a structured runner signal wins once one exists. A RUNNER failure is the opposite of a denial and outranks it in classification (a runner's error text can itself contain denial words): the wrap's `runnerFailureSignatures` matching a failed run means the sandbox broke and the command NEVER RAN — the foreground path re-throws it as the structured `SANDBOX_UNAVAILABLE` error (the late twin of the confine-time throw, carrying the runner's first stderr line), a settled background task stamps `sandbox.runnerFailed` and `bash_output` renders its own marker — so a broken sandbox can never read as a failing command. + +The model's view is result facts only: the static tool description explains the denial marker (`[sandbox: file access denied under mode]`), encourages attempting commands that may be denied, and forbids retrying around a denial; when the escalation fields are advertised, a denied result additionally carries the escalation hint itself, so the sanctioned same-turn retry is prompted at the decision point rather than depending on the model recalling the description (§ Escalation). No prompt section states the sandbox mode (§ Per-session modes). + +#### Escalation: one approved wider retry after a denial + +The seam level is mechanism only. `BashExecRequest` gains `sandboxMode?: SandboxMode`, an explicit per-call policy input; `BashExecSpec` carries it required-but-nullable (the `owner` pattern: a forgotten field is a visible `undefined`, and `resolve()` is the one explicit defaulting step); `BashExecutor` gains the capability fact `get sandboxMode(): SandboxMode | undefined` — `undefined` in the base class, the configured mode in `SandboxBashExecutor` — so the tool layer can advertise only what the mounted executor honors: composition truth, not configuration. The seam honors ANY explicit mode, including a narrower one; the wider-only ladder is escalation policy and lives in the tool. A non-sandboxing executor (`dsh-bash-local`) carries the field verbatim and confines nothing — the field reaching it means the caller bypassed the tool's gate, and its honest behavior stays unconfined execution, not a guess at enforcement it does not have. + +`SandboxBashExecutor.resolve()` stamps the effective mode — escalation grant > session override > configured default — so `run()`/`start()` read the spec, never the config. The `danger-full-access` branch, the confine call, and the result facts all key off the spec's mode, and the per-task facts map carries each task's mode alongside its wrap facts (`notifyTaskDone()` stamps from the map entry): one escalated call — foreground or background — reports the mode it ACTUALLY ran under while every neighbor keeps its own. + +The tool gate advertises two extra parameters exactly when `ctx.bash.sandboxMode` reports a confining mode at registration: `sandbox_permissions`, an enum of exactly the modes STRICTLY WIDER than the executor's default (`read-only` → `workspace-write`/`danger-full-access`; `workspace-write` → `danger-full-access`; `danger-full-access` → nothing, so the fields vanish), and `justification`, required together with it. The schema makes a non-widening request inexpressible. An escalating call resolves approval BEFORE anything executes — no `ctx.approval` composed, or no agent on the execution, fails closed with its own text; otherwise `ctx.approval.request({ agent, toolName: 'bash', callId, reason, signal })` with the audit-self-contained reason `escalate sandbox to ${mode}: ${justification}`, while the UI attaches the prompt to the already-streamed call (the command is visible there; the approval RFC's no-arguments rule holds). The four outcomes map to distinct results: `allowed-once` stamps `sandboxMode` onto the bash request and proceeds; `rejected`, `cancelled`, and `unavailable` each produce their own error text, so the model can tell a human "no" from a dismissed prompt from a missing channel. The grant is consumed by the very call that asked; nothing is stored. + +The tool description teaches — and a denied result itself prompts — the SAME-TURN flow when the fields exist: on a denial a wider mode would cure, escalate immediately in that turn by retrying the exact command once with `sandbox_permissions` (the narrowest mode that suffices) + `justification`, without detouring through chat to ask first — the approval prompt raised by the retry IS how the user consents. Never preemptively; a rejected escalation is final for that command. "Only after a real denial" is deliberately model discipline plus human judgment, not harness bookkeeping — the human sees the exact command and justification on the prompt (see Alternatives for why hard-matching is rejected). No new session events anywhere: the attempt is an ordinary `tool/call` whose logged arguments carry the two fields, the decision is the approval seam's `approval/asked`/`approval/decided` pair, the outcome is an ordinary `tool/result` whose sandbox facts name the mode it ran under. The asker lives in `dsh-tool-bash`, NOT the executor: a transport seam has no `agent`, no `callId`, and no business asking humans questions. + +Left open, recorded for the phase that picks them up: what a grant's scope identity is beyond the sandbox mode — the exact call, a path, a command prefix, the session, a time window — the question `allow_always` grant storage must answer before that option can be advertised; how cancellation behaves while an approval prompt is pending; and how escalation is defined for `run_in_background` denials that arrive via `bash_output`. + +#### Per-session modes: the session log as the store + +``` +effective(session) = findLast(the session's own knob events)?.value ?? the composition-config default +``` + +The default is composition config (`cordis.yml`) — operator-owned, process-wide. A runtime switch is a SESSION-SCOPED override recorded as one log-only event in that session's own log. Restart immunity (resuming a session replays its log, so overrides come back with zero catch-up machinery) and multi-session isolation (one editor tab's `workspace-write` cannot disturb another's `read-only`) both fall out by construction, and no external config store exists anywhere. + +**One event per knob, owned by its domain** — the merge-extensible `SessionEventMap` idiom every existing event family already follows (`approval/*` in `dsh-approval`, `hook/*` in the hooks packages): + +```ts +interface SessionEventMap { + 'bash/sandbox-mode': { mode: 'read-only' | 'workspace-write' | 'danger-full-access' } + 'approval/policy': { policy: 'ask' | 'never' } +} +``` + +Each owner exports the same three-piece kit: the event declaration, a pure fold (`effectiveSandboxMode(events)` / `effectiveApprovalPolicy(events)` — a `findLast`, typed to the domain's closed union), and THE write path (`setSandboxMode(session, mode)` / `setApprovalPolicy(session, policy)` — a switch IS its event; nothing mutates state out of band). No shared owner service, no generic facts map, no registry: a third knob copies the ~40-line pattern into its own package. Execution follows the fold on both sides — the bash tool's per-call stamp reads it as the middle rung of the § Escalation precedence chain, and the approval seam's `'never'` gate is [the approval RFC](2026-07-06-approval-seam.md)'s side of the same pattern. + +**Visibility is deliberately asymmetric between the knobs.** The SANDBOX mode is stated nowhere and its switches are not narrated: a standing "you are read-only" declaration teaches the model to refuse preemptively (observed in manual sessions: turns where the model would not even attempt a write it could have escalated), while the denial marker already names the mode the command ran under at exactly the moment the boundary matters — behavior, not belief, carries the state, and a switch simply changes what the next command does. The APPROVAL policy keeps both layers, because its failure mode is the opposite: an auto-rejected ask under `'never'` returns "the user rejected …" wording no behavior can disambiguate, so the prompt states `'never'` (and ONLY `'never'` — an `'ask'` promise is unknowable without asking, and absence under a logged header is how the narrator reads `'ask'` back), and an `agent/pre-step` narrator injects at most one coalesced notice per policy switch: idle flip-flops collapse to one notice at the next turn's first step, a net-zero round trip to none, and a mid-turn change is narrated no later than the next step. Its "last told" is in-memory with a log-derived fallback (the folded header's system text parsed against the closed candidate sentence; LAST occurrence wins, so a persona quoting it cannot shadow the real section), so restarts lose nothing; attribution is positional (a knob event after the log's last `request/header*` reads `changed by the user`, a drift with no such event reads `changed by the operator/config`). + +**The editor surface** is protocol-native [Session Config Options](https://agentclientprotocol.com/protocol/session-config-options) — the spec's replacement for session modes (slated for removal in ACP v2), already SDK-typed. The bridge advertises one independent `select` per composable knob — `sandbox-mode` (category `mode`) iff the mounted executor confines, `approval-policy` iff the approval seam is composed — with `currentValue` folded from each session's own log, in `session/new` and `session/load` responses. `session/set_config_option` validates against the same closed lists, routes to the domain setter, and returns the complete refreshed state (the spec contract). + +**Anchoring: turn-enclosure is the commit boundary.** The turn-enclosure contract makes a bare between-turns append invalid (the JSONL backend treats a post-`turn/end` tail as crash garbage; dev invariants throw). A switch while a turn is open appends immediately — openness read from the LOG (last boundary event is `turn/start`), not `agent.status`, which stays `running` between queued turns. An idle switch is held on the bridge's session record and anchored at the next turn's `agent/prompt-submit` — inside the turn, before anything in it assembles or executes, last write per knob, and OUTSIDE any `session/event` emit (appending from inside that feed reorders events for later-registered listeners — a bug the dev invariants caught live). Until anchored, the switch exists only in bridge memory: responses overlay it truthfully, and a crash before the next turn reverts it — `session/load` then reports the fold's truth, so the editor UI self-corrects rather than lies. + +#### In-process tools + +fs/web/todo execute in-process, so their sandbox semantics are policy at their seams: the fs intent gates deciding by the shared mode vocabulary (§ Deferred phases, cross-family) make `read-only` a real boundary instead of a bash-only approximation — until then the contract says so honestly. No generic per-tool sandbox runtime: a host-mediated tool leaves the process only by returning declarative effects the host validates, which is a rewrite, not a wrapper. + +#### Deferred phases + +Each phase gets its full design when picked up, validated against the code at that time. + +- **Per-session workspace root** — the executor's write boundary stays config-fixed for its lifetime while each ACP session has its own cwd; a per-session root rides the same per-call policy carrier once designed. +- **Cross-family boundary** — the fs intent gates decide by the shared mode, making `read-only`/`workspace-write` real boundaries beyond bash. +- **Second consumer** — `subagent-acp` optionally confines child agents (per-call policy; unconfined default — a child agent must write its own persistence). +- **More environments** — an environment-coherent capability group example (e.g. bash+fs against one container). +- **Windows chain** — `PLATFORM_CHAINS.win32` is reserved and empty (fail-closed); filling it means a confinement runner from the AppContainer/restricted-token family, shipped from its own repository on the `node-addon-landlock-run` template, plus its profile dialect and denial/runner-failure signatures. + +### Testing + +- Unit tier (no real runner anywhere): profile dialects, per-platform chain selection (sole candidate unprobed, no chain fails closed, multi-candidate probe order), verdict caching, the fail-closed end, probe-report parsing, and the launcher/`sandbox-exec` CLI contracts via fake runner scripts in `dsh-sandbox-local`; wrapping, policy hand-off, fact stamping, and runner-failure-outranks-denial classification (foreground throw, background `runnerFailed` fact) against a fake provider in `dsh-bash-sandbox`; the error's structured identity in `dsh-sandbox`. The escalation matrix spans the three bash packages: verbatim carry-through in `dsh-bash-local`, stamp/branch/per-task-facts in `dsh-bash-sandbox`, and the capability gate, `justification` pairing, fail-closed texts (pinned verbatim), and grant stamping in `dsh-tool-bash`. The switching surface pins the folds, the stamping precedence, the `'never'` gate, per-session section rendering, the full narrator matrix (cold start, coalescing, net-zero, resume drift with operator wording, positional attribution, persona-shadow hardening), and the bridge's advertisement gating, validation rejections, idle-vs-mid-turn anchoring (dev invariants mounted), and `session/load` reporting over a real two-process JSONL round trip. +- Keyless real-runner e2e, split along the seam and per rung: CI's `sandbox-e2e` matrix runs bwrap and Landlock on Linux (the Landlock leg once per architecture, each confining through the registry-installed launcher) and Seatbelt on macOS against real kernels, failing on a silent all-skip. World-proofs live in `dsh-sandbox-local` (denied writes absent on disk, workspace writes landing, temp-area grants pinned, kernel denial text matching the advertised dialect) and `dsh-bash-sandbox` (the through-`ctx.bash` consumer proofs, including denied-then-overridden-write-lands). This package's own publish path is rehearsed without publishing (`packed-install.e2e.ts`): `pnpm pack`, tarballs installed into a throwaway consumer with the launcher family resolving from the registry, plain `node` confining through the INSTALLED launcher — asserted executable apart, so a mode-stripped binary can never masquerade as a non-enforcing kernel. The switching surface has its own keyless e2e (`examples/sandbox-acp-agent`): the real `cordis.yml` tree advertises both options, honors switches end to end, and rejects out-of-vocabulary values. +- With-key e2e (`examples/sandbox-acp-agent/tests/escalation.e2e.ts`): real model + real runner + the REAL bridge answerer, world-verified — denied under `read-only`, escalates with justification, the scripted editor grants and the retried write lands on disk, while a rejected escalation leaves no write. Self-skips without `DEEPSEEK_API_KEY` or a usable runner (e2e.yml installs bubblewrap so it actually executes in CI). +- Snapshot tier (`examples/sandbox-acp-agent/tests/acp.snapshot.ts`): the keyless config-option wire; the recorded mode-switching arc as the suite's pinned header — necessarily, since mid-session switches emit the `request/header-delta`s the uniformity guard licenses only in the pin — committing both switches, the prompt-section delta and one "changed by the user" notice per knob, and a confined write landing under the switched mode; and both recorded escalation branches over scripted `permissionAnswers` (grant runs confined under `workspace-write`; rejection executes nothing and pins the fail-closed text). Replay re-executes every fixture's bash calls under the host's real runner (ci.yml's snapshot lane installs bubblewrap). Deliberately absent: a fixture carrying a real DENIAL — denial stderr is the backend's dialect and would pin a fixture to its recording platform; the escalation prompts assert the prior denial instead, and the denial→marker path stays on the tiers above. + +## Alternatives considered + +- **Command-string heuristic preflight** — rejected: cannot understand expansion/subprocesses/symlinks; the strict attempt (run it, let the kernel decide) is the only trustworthy denial signal. +- **Functionally probe even a platform's sole backend** — rejected: probing arbitrates between candidates; with one there is nothing to decide, and probe cost taxes the first confined command of every session (prohibitive for heavy future backends). The runner's own exec-time fail-closed refusal plus `runnerFailureSignatures` classification carries the safety property instead. +- **Commit the built launcher binaries** — rejected: a binary in a diff is unreviewable and churns history; reviewed source + native CI builds + the launcher repo's byte-pinned publish rehearsal keep bytes out of every tree. +- **Compile the launcher on install** — rejected: pushes a C toolchain onto every consumer; a fallback that exists only where a compiler happens to be is not a fallback. +- **Cross-compile both architectures from one builder** — rejected: requires carrying a pinned cross toolchain (rustup targets, zig, or a container image) solely to rebuild two ~70 KB binaries; per-architecture native runners already exist and each builds its own platform package (the `node-addon-require-builtin` model, the launcher repo's own pipeline). +- **No fallback (bwrap or fail closed)** — rejected: concentrates failure on the hosts a sandbox matters most, degrading to `danger-full-access` by resignation. +- **Keep the mechanism inside `dsh-bash-sandbox`** — rejected: blocks the existing second consumer, makes future phases read mode out of a bash plugin's config, and cannot express escalation. +- **Config-fixed mode on the provider** — rejected: one mode per process; cannot serve concurrent consumers with different policies nor the one-shot widened retry. +- **One interface spanning containers/VMs too** — rejected: `confine(argv)` presupposes a shared filesystem; environment isolation is capability-sibling backends deployed as coherent groups. +- **Generic ToolRuntime wrapping any tool** — rejected: mechanically false for in-process tools (closures over `ctx`); the declarative-effects rewrite is unjustified for fs/web/todo. +- **Ask inside the executor (`dsh-bash-sandbox`)** — rejected: no `agent` to route through, no `callId` to attach the prompt to; adding them teaches a transport seam about sessions and UIs — the tool layer holds both and owns the model-facing vocabulary. +- **Auto-retry inside the same tool call** — rejected: a hidden re-entry the log cannot reconstruct: one `tool/call` would have produced two executions with different policies — the retry is a NEW logged call with its own arguments and result facts. +- **Advertise the escalation fields unconditionally** — rejected: under `dsh-bash-local` they are a dead lever — advertising an option the harness cannot honor manufactures doomed grants; capability-gating costs one registration-time read. +- **Hard-match the retry to a prior denial** — rejected: command-string identity is fragile (quoting, `workdir`, env prefixes, a pipeline retried as its failing stage) — false-rejects honest retries or is trivially satisfied; the real boundary is the human seeing command + justification. Revisit only if `allow_always` grant storage ever needs machine-checkable scopes. +- **A generic `env/state` facts map with an owner service** — rejected: approval and sandbox compose independently, so neither's state may drag in a third package; single-key folds are one `findLast` each, dissolving the owner service; no invariant spans the knobs, so atomic multi-key patches bought nothing. +- **Narrate via `agent/user-message` + a bus event** — rejected: it presupposes a turn-entry seam that does not exist (the real seam is `agent/prompt-submit`), and pre-step's position serves both the coalesced turn-entry notice and the mid-turn immediacy bound with one listener. +- **A standing prompt statement of the sandbox mode (+ a switch narrator)** — rejected on live evidence from the first manual sessions: with `Bash commands run under the "read-only" file sandbox.` in every request, the model refused to ATTEMPT denied-then-escalatable work, turning the sandbox into a soft lockout. The denial marker names the mode at the moment it matters and the escalation fields carry the recovery; the approval knob keeps its statement because an auto-rejection is behaviorally indistinguishable from a human "no". +- **Track "last told" with its own bookkeeping events** — rejected: the `request/header*` fold already records the exact prompt the model saw; parsing the closed candidate sentences back replaces a second bookkeeping stream — events are needed only where they ARE the store. +- **ACP session modes instead of config options** — rejected: one mode list cannot carry two orthogonal knobs; config options are the spec's designed surface and modes are slated for removal in ACP v2. + +## Acceptance criteria + +- A denied command retried with `sandbox_permissions` + `justification` prompts the user through the composed answerer chain; a grant runs THAT call under the wider mode (result facts say so) while every other call keeps its own effective mode; every non-grant outcome produces its distinct error text and executes nothing. +- The escalation fields exist exactly when the mounted executor confines and a wider mode exists; a deployment with no ApprovalService fails escalating calls closed and leaves plain calls untouched. +- The system prompt never states the sandbox mode (an approval `'never'` policy is the one stated knob), and the whole exchange — headers, knob events, notices, approvals, results — reconstructs from the session log alone, with no event types beyond the two knob events. +- N idle-time flips produce at most one anchored event per knob (a net-zero sequence anchors none — a no-op push from a client echoing current selections records nothing); an approval-policy switch is narrated in at most one coalesced notice; a mid-turn sandbox switch is honored by the next call's stamp. +- A resumed session's overrides apply and are reported to the editor with no special-casing; a default changed while the process was down is narrated before the session's first new request, attributed to the operator. +- Two concurrent sessions never see each other's state, notices, or config options. +- `agent-loop` is untouched — everything rides `systemPrompt.section`, `SessionEventMap` merging, `agent.inject()`, `agent/pre-step`, `agent/prompt-submit`, and the ACP handler surface. + +## Risks + +- **The one-wrapper illusion is given up knowingly.** A `tools/pre-execute` wrapper plus prompt conventions does not solve sandbox approval — the correct design costs structured denials, native runner probes, per-call policy carriage, and consistent cross-family enforcement, and this RFC pays it. +- **`read-only` is not yet a cross-family boundary.** Until the fs intent gates decide by the shared mode, the claim holds for bash only; the contract says so honestly (§ In-process tools). +- **Windows has no backend.** Its chain slot is reserved empty — fail-closed, never a fallthrough; filling it is a deferred phase. +- **The Seatbelt rung leans on Apple's deprecated-but-shipped `sandbox-exec` CLI.** As darwin's sole candidate it is selected without probing, so a future removal surfaces at execution as the runner-failure classification — re-thrown `SANDBOX_UNAVAILABLE`, the command never runs; fail closed, never open. +- **Landlock confinement is only as complete as the running kernel's ABI.** Reported as `enforcement: 'partial'` rather than refused — the deliberate trade that keeps the fallback available on older-kernel hosts. +- **The launcher arrives as a registry dependency.** Trusted through its own repository's release pipeline (reviewed C source, native CI builders, byte-pinned publish rehearsal) plus this repo's version pin — the real-kernel e2e legs are what vouch for behavior through the installed bytes. +- **The model may over-ask.** Escalating without a real denial, or picking `danger-full-access` where `workspace-write` suffices: the description steers and the enum forces the ladder, but the human prompt is the actual gate; the `approval/asked` reasons make over-asking auditable, and a `prepend` policy answerer can auto-reject patterns a deployment never wants. +- **The advertised ladder reflects the executor's registration-time DEFAULT, not per-session effective mode** (schemas are registry-global) — a session overridden wider may be offered an escalation it does not need, which is harmless. +- **A granted escalation is not a working sandbox.** An unavailable backend still fails closed even for a granted escalation to a confining mode — at `confine()` when the platform has no chain or every probe fails, at execution when an unprobed sole runner refuses (classified as a sandbox failure, not a command failure) — while a granted `danger-full-access` run never touches the provider at all: there the grant, not the probe, is the authority. +- **An idle switch lives in bridge memory until the next turn anchors it.** A crash in that window reverts it (reported honestly on `session/load`), and a session that never runs another turn never persists it — accepted, with the loop-owned idle commit turn named as future work if durability becomes a requirement. +- **The approval narrator's restart baseline parses prompt prose.** The closed candidate sentence is owned by the writing module itself, so a wording change is a coordinated writer+parser edit in one file; a session whose headers predate the section silently adopts the current policy without a notice. +- **The approval section is still a dynamic prompt surface** (a `'never'` switch breaks provider prompt-prefix caching for that session). Accepted: policy switches are rare, and a model acting on a stale `'never'` is worse. The sandbox knob no longer touches the prompt at all. +- **The model may hold a stale belief about the sandbox mode** (nothing announces a switch). Accepted deliberately: the next attempt's marker or success corrects it, and the observed failure mode of announcing — preemptive refusal — is worse than one wasted retry. + +## FAQ + +Behavioral and usage questions only — every "why not X?" design question lives in [Alternatives considered](#alternatives-considered), whose job is exactly that. + +- **A command came back with `[sandbox: file access denied under read-only mode]` — did it fail?** It RAN, and the kernel refused a file effect: the denial is a result fact orthogonal to exit code. The teaching forbids retrying around it; the one sanctioned move is the same command retried once with an escalation request. +- **How is a BROKEN sandbox told apart from a failing command?** Runner failure outranks denial in classification: a failed run matching the wrap's `runnerFailureSignatures` means the command NEVER ran — foreground re-throws the structured `SANDBOX_UNAVAILABLE` with the runner's stderr line, a background task stamps `sandbox.runnerFailed` and renders its own marker. A broken sandbox can never read as a failing command, and the command never runs unconfined. +- **What happens on a platform with no backend — Windows today?** `confine()` throws the fail-closed `SANDBOX_UNAVAILABLE` and the command never spawns; `win32` is a reserved EMPTY chain, pinned by test to fail closed identically until a Windows runner fills it (§ Deferred phases). +- **`bwrap` is installed on my host but unusable (disabled unprivileged userns, an LSM denying `mount`) — what happens?** The chain probe is functional — it builds and enforces a real profile rather than checking `--version` — so a present-but-unusable `bwrap` fails its probe, selection falls to the registry-installed Landlock launcher, and the verdict is cached for the provider's lifetime. +- **Does the sandbox restrict network or process visibility?** No — `SandboxMode` claims FILE effects only; the bwrap profile deliberately does not unshare pid, and no backend claims network. Whether network restriction becomes its own knob is left open in § The seam. +- **Which tools actually run confined?** OS subprocesses through `ctx.bash` — the bash tools, and hook commands transitively. fs/web/todo execute in-process, where an `execve` wrapper is mechanically meaningless; their `read-only` semantics arrive with the cross-family deferred phase, and until then the contract says bash-only honestly. +- **Does a granted escalation persist, or cover background tasks?** Neither: the grant is consumed by the very call that asked (foreground or background), that one call reports the mode it actually ran under, and every neighbor keeps its own. How escalation should be DEFINED for a background denial that only surfaces later via `bash_output` is left open in § Escalation. +- **When does an editor's mode switch take effect?** Mid-turn: appended immediately, honored by the very next call's stamp. Idle: held on the bridge's session record, anchored at the next turn's `agent/prompt-submit`, with N flips coalescing to at most one event (none if net-zero); a crash before anchoring reverts it and `session/load` reports the truth. The model is not told — its next command simply behaves under the new mode. +- **What survives a restart — and what if the operator changed the config default while the process was down?** Overrides replay from the session log (`effective = fold ?? config`), so a resumed session keeps its modes with zero catch-up machinery; a default that drifted offline changes behavior the same way a switch does (the approval policy, being stated, is additionally narrated with operator/config attribution). +- **What does `enforcement: 'partial'` on a result mean?** The selected backend enforces the subset its kernel ABI governs — e.g. Landlock before ABI v3 does not govern path truncate — and says so structurally instead of refusing the host; the probe's report line distinguishes the cases. The bwrap and Seatbelt profiles govern every promised file effect by construction, so they always report `full`. + +## Prior art + +In-repo precedents this design copies or contrasts with: + +- [The capability-seams RFC](../../implemented/architecture/2026-06-13-capability-seams.md) — the interface/implementation/consumer split and the "don't split preemptively" timing rule the second consumer satisfied. +- The `dsh-bash` request/spec split and its `owner` field ([the bash vocabulary catalog](../../../core-data-structures/bash.md)) — the per-call carrier template `sandboxMode` rides, and the explicit-`resolve()` defaulting convention. +- [The approval seam RFC](2026-07-06-approval-seam.md) — the channel escalation asks through; its answerer waterfall, audit pair, and one-package rationale are recorded there. +- [Event-sourced sessions](../../implemented/architecture/2026-06-11-event-sourced-sessions.md) and [the turn-enclosure invariant](../../implemented/architecture/2026-06-15-turn-enclosure-invariant.md) — the log-as-store foundation the per-session modes fold over, and the commit boundary the anchoring design obeys. +- [The interception-seams RFC](../../implemented/feature/2026-06-30-interception-seams.md) — the `tools/pre-execute` vocabulary the escalation gate deliberately does not reuse (an escalating call has no pre-execute moment of its own). From d3a833fc4ac24549def88717376835216f70d528 Mon Sep 17 00:00:00 2001 From: kingwl Date: Thu, 9 Jul 2026 17:15:09 +0800 Subject: [PATCH 163/232] docs(rfc): speak of the staged example and recordings at plan-time tense (review) The proposed forms claimed examples/sandbox-acp-agent, its recorded scenarios, and the approval servicing of ask as already existing; a reader of this docs-only change would look for a composition and goldens that are not in the tree. Usage walkthroughs now name the arc the staged scenarios are to record, both Testing sections open with the plan-time banner, and the grounding bullet states todays degrade honestly. --- docs/rfc/proposed/feature/2026-07-06-approval-seam.md | 10 +++++----- docs/rfc/proposed/feature/2026-07-06-sandbox.md | 10 ++++++---- 2 files changed, 11 insertions(+), 9 deletions(-) diff --git a/docs/rfc/proposed/feature/2026-07-06-approval-seam.md b/docs/rfc/proposed/feature/2026-07-06-approval-seam.md index 76defba74e..321ae55190 100644 --- a/docs/rfc/proposed/feature/2026-07-06-approval-seam.md +++ b/docs/rfc/proposed/feature/2026-07-06-approval-seam.md @@ -23,11 +23,11 @@ One `cordis.yml` entry mounts the seam; not loading it is the opt-out — consum # policy: never # deployment default for sessions without an override; 'ask' when omitted ``` -The entry alone provides mechanism, not a channel: with no answerer composed, every ask resolves `unavailable` and the asking tool call denies — fail-closed needs no configuration. Composing the ACP app (`@deepseek-ai/dsh-acp-agent`, as in the `examples/sandbox-acp-agent` composition this design lands with) completes the loop: its bridge registers an answerer that prompts the owning editor session via `session/request_permission`, so a hook's `ask` or an escalation request surfaces as a one-shot Allow/Reject prompt attached to the already-streamed tool call. `policy: never` is the unattended stance — every ask auto-rejects deterministically, stated in the system prompt, no human in the loop. `policy` is validated against the closed list at plugin load; anything else throws. +The entry alone provides mechanism, not a channel: with no answerer composed, every ask resolves `unavailable` and the asking tool call denies — fail-closed needs no configuration. Composing the ACP app (`@deepseek-ai/dsh-acp-agent`, as in `examples/sandbox-acp-agent`, the composition staged to land with this design's implementation) completes the loop: its bridge registers an answerer that prompts the owning editor session via `session/request_permission`, so a hook's `ask` or an escalation request surfaces as a one-shot Allow/Reject prompt attached to the already-streamed tool call. `policy: never` is the unattended stance — every ask auto-rejects deterministically, stated in the system prompt, no human in the loop. `policy` is validated against the closed list at plugin load; anything else throws. What a composed deployment observes: `allowed-once` lets exactly that call proceed; rejection, dismissal, and channel absence deny with three distinct reasons the model can tell apart; every ask lands a durable `approval/asked`/`approval/decided` pair on the asking agent's session log; nothing about a grant persists past the call that asked. -One ask under this composition, verbatim from the sandbox example's recorded `escalation-approved` scenario — the model requests a sandbox escalation, the gate asks, the bridge prompts the owning editor, the user clicks Allow once: +One ask under this composition — the model requests a sandbox escalation, the gate asks, the bridge prompts the owning editor, the user clicks Allow once. This is the arc the implementation's `escalation-approved` snapshot scenario is to record verbatim: ``` tool/call bash {"command": "printf 'escalated\n' > escalated.txt && cat escalated.txt", @@ -43,7 +43,7 @@ approval/decided {"outcome": "allowed-once"} tool/result "escalated" — this one call ran under the wider mode; the grant died with it ``` -The `escalation-rejected` twin ends in `{"outcome": "rejected"}` instead: nothing executes, and the model's result carries the asker's verbatim fail-closed text (`the user rejected escalating this command to "workspace-write"`). A hook's `permissionDecision: ask` rides the identical wire; only the asker and its deny texts differ (§ Ask routing in dsh-tools). Headless, the same request skips the prompt entirely and settles `unavailable`. +Its `escalation-rejected` twin is to end in `{"outcome": "rejected"}` instead: nothing executes, and the model's result carries the asker's verbatim fail-closed text (`the user rejected escalating this command to "workspace-write"`). A hook's `permissionDecision: ask` rides the identical wire; only the asker and its deny texts differ (§ Ask routing in dsh-tools). Headless, the same request skips the prompt entirely and settles `unavailable`. ### Design detail @@ -79,9 +79,9 @@ One new package, no cycles: `dsh-approval` peers on `cordis`, `dsh-session` (eve ### Testing -Unit tier: the service's outcome branches (fail-closed default, first-wins slot, delegation, containment, rogue-value normalization, abort-before and abort-during with late-answer discard, fresh ids, fiber-disposal degradation) and the policy tier (both values × dispatch/decide, a `'never'` decision unbypassable even by an answerer prepended AFTER the service, audit pair intact) in `dsh-approval`; the ask routing matrix (grant dispatches; three non-grant reasons pinned verbatim; unmounted and agent-less degrades; the registry's own exhaustiveness backstop against a non-conforming stand-in) in `dsh-tools`; the answerer (wire shape of the prompt, outcome mapping, unknown-option conservatism, foreign-agent and call-less delegation) driven through a real bridge + scripted client in `dsh-acp`. +Coverage named at plan time, per tier ([testing policy](../../../testing.md)). Unit tier: the service's outcome branches (fail-closed default, first-wins slot, delegation, containment, rogue-value normalization, abort-before and abort-during with late-answer discard, fresh ids, fiber-disposal degradation) and the policy tier (both values × dispatch/decide, a `'never'` decision unbypassable even by an answerer prepended AFTER the service, audit pair intact) in `dsh-approval`; the ask routing matrix (grant dispatches; three non-grant reasons pinned verbatim; unmounted and agent-less degrades; the registry's own exhaustiveness backstop against a non-conforming stand-in) in `dsh-tools`; the answerer (wire shape of the prompt, outcome mapping, unknown-option conservatism, foreign-agent and call-less delegation) driven through a real bridge + scripted client in `dsh-acp`. -Snapshot tier: the harness accepts scripted permission answers (`permissionAnswers` in a scenario's `input.json`, consumed FIFO; an unscripted prompt answers `cancelled`, fail closed). The seam's wire is recorded end to end in the sandbox example's suite: both escalation branches drive `session/request_permission` through this seam over scripted answers (grant and rejection), and the recorded `mode-switching` scenario pins the `'never'` prompt sentence and the policy-switch notice ([the sandbox RFC](2026-07-06-sandbox.md) § Testing). A hook-driven recorded `ask` (extending the hook matrix's `hook-cc-pretool-ask` with a mounted ApprovalService) remains undone; its deny texts are pinned verbatim at the unit tier. +Snapshot tier, landing with the staged example: the harness gains scripted permission answers (`permissionAnswers` in a scenario's `input.json`, consumed FIFO; an unscripted prompt answers `cancelled`, fail closed), and the seam's wire gets recorded end to end in that example's suite — both escalation branches driving `session/request_permission` through this seam over scripted answers (grant and rejection), and a recorded `mode-switching` scenario pinning the `'never'` prompt sentence and the policy-switch notice ([the sandbox RFC](2026-07-06-sandbox.md) § Testing). A hook-driven recorded `ask` (extending the hook matrix's `hook-cc-pretool-ask` with a mounted ApprovalService) remains undone; its deny texts are pinned verbatim at the unit tier. ## Alternatives considered diff --git a/docs/rfc/proposed/feature/2026-07-06-sandbox.md b/docs/rfc/proposed/feature/2026-07-06-sandbox.md index 7a9f514fb3..1b024fee1a 100644 --- a/docs/rfc/proposed/feature/2026-07-06-sandbox.md +++ b/docs/rfc/proposed/feature/2026-07-06-sandbox.md @@ -16,7 +16,7 @@ One seam, one per-platform chain of local backends, one consumer, and two levers ### How a deployment uses it -Three `cordis.yml` entries turn an unconfined coding agent into the sandboxed product path; the `examples/sandbox-acp-agent` composition this design lands with is exactly this tree: +Three `cordis.yml` entries turn an unconfined coding agent into the sandboxed product path; `examples/sandbox-acp-agent`, the composition staged to land with this design's implementation, is exactly this tree: ```yaml - id: sandbox @@ -36,7 +36,7 @@ Misconfiguration fails loud: `mode` outside the closed vocabulary is rejected at What the model then experiences: denied file effects come back as result facts with a `[sandbox: file access denied under mode]` marker plus standing instructions not to retry around them; when a wider mode exists, the schema offers `sandbox_permissions` + `justification` for the one-approval escalated retry; the system prompt deliberately does NOT state the sandbox mode — the model learns the boundary from the marker (which names the mode) when it hits it, instead of preemptively refusing work a standing declaration discourages. What an ACP editor experiences: a `sandbox-mode` and an `approval-policy` config-option select per session (each advertised only when its knob is composable), switchable at runtime; a sandbox switch simply changes what subsequent commands may do, while an approval-policy switch to `'never'` is stated in the prompt and narrated. -The product path, concretely (the escalation arc is verbatim from the recorded `escalation-approved` scenario; the denial leg is pinned on the real-kernel e2e tier): +The product path, concretely (the escalation arc is what the staged `escalation-approved` snapshot scenario is to record verbatim; the denial leg lands on the real-kernel e2e tier): ``` tool/result … [sandbox: file access denied under read-only mode] ← the write RAN; the kernel refused it @@ -55,7 +55,7 @@ Reject instead and nothing executes: the result is the verbatim `the user reject - Runtime OS subprocesses exist at exactly two sites: the `ctx.bash` seam's single spawn (`packages/bash/bash-local/src/run.ts`; hook commands flow through `ctx.bash`, so bash confinement covers them transitively) and `subagent-acp`'s child agents (`packages/subagent/subagent-acp/src/run.ts`) — the second consumer that makes a shared seam due rather than preemptive under the [capability seams RFC](../../implemented/architecture/2026-06-13-capability-seams.md)'s "don't split preemptively" rule. - Everything else executes inside the harness process (fs is in-process `node:fs`, web is in-process `fetch`, every `ToolDefinition.execute()` closes over `ctx`): an OS sandbox wraps `execve` and cannot wrap an in-process function call, so "sandbox any tool" is policy at each tool's seam, never a mechanical transport change. -- `tools/pre-execute` (`allow`/`deny`/`ask`) exists, with `ask` serviced by [the approval seam](2026-07-06-approval-seam.md); the fs intent gates are version guards with no mode input yet. +- `tools/pre-execute` (`allow`/`deny`/`ask`) exists; `ask` degrades to deny today, and [the approval seam proposal](2026-07-06-approval-seam.md) is staged to service it. The fs intent gates are version guards with no mode input yet. - `dsh-bash`'s request/spec split (`BashExecRequest` → `resolve()` → `BashExecSpec`) carries per-call fields the way escalation needs — `owner` is the template: request-optional, spec required-but-nullable, carried verbatim — and the result types already speak `SandboxMode`, so a per-call policy field adds no dependency edge. - The pinned-header snapshot design means a schema/description change churns at most one pinning fixture per suite, and the escalation fields are advertised only under a sandboxing executor — so they live in exactly one pinned header, the sandbox example suite's `mode-switching` fixture. @@ -138,10 +138,12 @@ Each phase gets its full design when picked up, validated against the code at th ### Testing +Coverage named at plan time, per tier ([testing policy](../../../testing.md)). + - Unit tier (no real runner anywhere): profile dialects, per-platform chain selection (sole candidate unprobed, no chain fails closed, multi-candidate probe order), verdict caching, the fail-closed end, probe-report parsing, and the launcher/`sandbox-exec` CLI contracts via fake runner scripts in `dsh-sandbox-local`; wrapping, policy hand-off, fact stamping, and runner-failure-outranks-denial classification (foreground throw, background `runnerFailed` fact) against a fake provider in `dsh-bash-sandbox`; the error's structured identity in `dsh-sandbox`. The escalation matrix spans the three bash packages: verbatim carry-through in `dsh-bash-local`, stamp/branch/per-task-facts in `dsh-bash-sandbox`, and the capability gate, `justification` pairing, fail-closed texts (pinned verbatim), and grant stamping in `dsh-tool-bash`. The switching surface pins the folds, the stamping precedence, the `'never'` gate, per-session section rendering, the full narrator matrix (cold start, coalescing, net-zero, resume drift with operator wording, positional attribution, persona-shadow hardening), and the bridge's advertisement gating, validation rejections, idle-vs-mid-turn anchoring (dev invariants mounted), and `session/load` reporting over a real two-process JSONL round trip. - Keyless real-runner e2e, split along the seam and per rung: CI's `sandbox-e2e` matrix runs bwrap and Landlock on Linux (the Landlock leg once per architecture, each confining through the registry-installed launcher) and Seatbelt on macOS against real kernels, failing on a silent all-skip. World-proofs live in `dsh-sandbox-local` (denied writes absent on disk, workspace writes landing, temp-area grants pinned, kernel denial text matching the advertised dialect) and `dsh-bash-sandbox` (the through-`ctx.bash` consumer proofs, including denied-then-overridden-write-lands). This package's own publish path is rehearsed without publishing (`packed-install.e2e.ts`): `pnpm pack`, tarballs installed into a throwaway consumer with the launcher family resolving from the registry, plain `node` confining through the INSTALLED launcher — asserted executable apart, so a mode-stripped binary can never masquerade as a non-enforcing kernel. The switching surface has its own keyless e2e (`examples/sandbox-acp-agent`): the real `cordis.yml` tree advertises both options, honors switches end to end, and rejects out-of-vocabulary values. - With-key e2e (`examples/sandbox-acp-agent/tests/escalation.e2e.ts`): real model + real runner + the REAL bridge answerer, world-verified — denied under `read-only`, escalates with justification, the scripted editor grants and the retried write lands on disk, while a rejected escalation leaves no write. Self-skips without `DEEPSEEK_API_KEY` or a usable runner (e2e.yml installs bubblewrap so it actually executes in CI). -- Snapshot tier (`examples/sandbox-acp-agent/tests/acp.snapshot.ts`): the keyless config-option wire; the recorded mode-switching arc as the suite's pinned header — necessarily, since mid-session switches emit the `request/header-delta`s the uniformity guard licenses only in the pin — committing both switches, the prompt-section delta and one "changed by the user" notice per knob, and a confined write landing under the switched mode; and both recorded escalation branches over scripted `permissionAnswers` (grant runs confined under `workspace-write`; rejection executes nothing and pins the fail-closed text). Replay re-executes every fixture's bash calls under the host's real runner (ci.yml's snapshot lane installs bubblewrap). Deliberately absent: a fixture carrying a real DENIAL — denial stderr is the backend's dialect and would pin a fixture to its recording platform; the escalation prompts assert the prior denial instead, and the denial→marker path stays on the tiers above. +- Snapshot tier (`examples/sandbox-acp-agent/tests/acp.snapshot.ts`, landing with the example): the keyless config-option wire; a recorded mode-switching arc as the suite's pinned header — necessarily, since mid-session switches emit the `request/header-delta`s the uniformity guard licenses only in the pin — committing both switches, the prompt-section delta and one "changed by the user" notice per knob, and a confined write landing under the switched mode; and both escalation branches recorded over scripted `permissionAnswers` (grant runs confined under `workspace-write`; rejection executes nothing and pins the fail-closed text). Replay re-executes every fixture's bash calls under the host's real runner (ci.yml's snapshot lane installs bubblewrap). Deliberately absent: a fixture carrying a real DENIAL — denial stderr is the backend's dialect and would pin a fixture to its recording platform; the escalation prompts assert the prior denial instead, and the denial→marker path stays on the tiers above. ## Alternatives considered From 7afdc6e3b985b106333cb66bd478350a69ab445d Mon Sep 17 00:00:00 2001 From: kingwl Date: Thu, 9 Jul 2026 18:01:19 +0800 Subject: [PATCH 164/232] docs(rfc): escalation targets are a closed static vocabulary; strict widening moves to an execution-time check (review blocker) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The default-relative ladder conflicts with per-session overrides: schemas are registry-global while the effective mode is switchable, so a session overridden NARROWER than the default loses exactly the lever it needs — a workspace-write default with a read-only override could only request danger-full-access (forced over-escalation), and a danger-full-access default with a read-only override advertised no fields at all (confined, no escalation path). The enum now pins the closed target vocabulary (workspace-write / danger-full-access) whenever the executor confines; strict widening is enforced per call against the session effective mode (override ?? default), failing closed without prompting anyone. The default-relative ladder and per-session dynamic schemas move to Alternatives; the harmless Risks claim is corrected to name the runtime check as the safety boundary. --- docs/rfc/proposed/feature/2026-07-06-sandbox.md | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/docs/rfc/proposed/feature/2026-07-06-sandbox.md b/docs/rfc/proposed/feature/2026-07-06-sandbox.md index 1b024fee1a..444f93502f 100644 --- a/docs/rfc/proposed/feature/2026-07-06-sandbox.md +++ b/docs/rfc/proposed/feature/2026-07-06-sandbox.md @@ -34,8 +34,7 @@ The swap is invisible to every consumer of `ctx.bash`: the bash tools, hook comm Misconfiguration fails loud: `mode` outside the closed vocabulary is rejected at plugin load, and a host with no usable backend throws the structured `SANDBOX_UNAVAILABLE` — at `confine()` before the command ever spawns — rather than degrading to unconfined execution. `runnerCommand` on `dsh-sandbox-local` is the operator's explicit assertion of a bwrap-compatible runner (chain and probes skipped); it doubles as the deterministic fake-runner seam for keyless tests. -What the model then experiences: denied file effects come back as result facts with a `[sandbox: file access denied under mode]` marker plus standing instructions not to retry around them; when a wider mode exists, the schema offers `sandbox_permissions` + `justification` for the one-approval escalated retry; the system prompt deliberately does NOT state the sandbox mode — the model learns the boundary from the marker (which names the mode) when it hits it, instead of preemptively refusing work a standing declaration discourages. What an ACP editor experiences: a `sandbox-mode` and an `approval-policy` config-option select per session (each advertised only when its knob is composable), switchable at runtime; a sandbox switch simply changes what subsequent commands may do, while an approval-policy switch to `'never'` is stated in the prompt and narrated. - +What the model then experiences: denied file effects come back as result facts with a `[sandbox: file access denied under mode]` marker plus standing instructions not to retry around them; under a confining executor the schema offers `sandbox_permissions` + `justification` for the one-approval escalated retry (validated strictly wider than the session's effective mode at execution); the system prompt deliberately does NOT state the sandbox mode — the model learns the boundary from the marker (which names the mode) when it hits it, instead of preemptively refusing work a standing declaration discourages. What an ACP editor experiences: a `sandbox-mode` and an `approval-policy` config-option select per session (each advertised only when its knob is composable), switchable at runtime; a sandbox switch simply changes what subsequent commands may do, while an approval-policy switch to `'never'` is stated in the prompt and narrated. The product path, concretely (the escalation arc is what the staged `escalation-approved` snapshot scenario is to record verbatim; the denial leg lands on the real-kernel e2e tier): ``` @@ -91,7 +90,7 @@ The seam level is mechanism only. `BashExecRequest` gains `sandboxMode?: Sandbox `SandboxBashExecutor.resolve()` stamps the effective mode — escalation grant > session override > configured default — so `run()`/`start()` read the spec, never the config. The `danger-full-access` branch, the confine call, and the result facts all key off the spec's mode, and the per-task facts map carries each task's mode alongside its wrap facts (`notifyTaskDone()` stamps from the map entry): one escalated call — foreground or background — reports the mode it ACTUALLY ran under while every neighbor keeps its own. -The tool gate advertises two extra parameters exactly when `ctx.bash.sandboxMode` reports a confining mode at registration: `sandbox_permissions`, an enum of exactly the modes STRICTLY WIDER than the executor's default (`read-only` → `workspace-write`/`danger-full-access`; `workspace-write` → `danger-full-access`; `danger-full-access` → nothing, so the fields vanish), and `justification`, required together with it. The schema makes a non-widening request inexpressible. An escalating call resolves approval BEFORE anything executes — no `ctx.approval` composed, or no agent on the execution, fails closed with its own text; otherwise `ctx.approval.request({ agent, toolName: 'bash', callId, reason, signal })` with the audit-self-contained reason `escalate sandbox to ${mode}: ${justification}`, while the UI attaches the prompt to the already-streamed call (the command is visible there; the approval RFC's no-arguments rule holds). The four outcomes map to distinct results: `allowed-once` stamps `sandboxMode` onto the bash request and proceeds; `rejected`, `cancelled`, and `unavailable` each produce their own error text, so the model can tell a human "no" from a dismissed prompt from a missing channel. The grant is consumed by the very call that asked; nothing is stored. +The tool gate advertises two extra parameters exactly when `ctx.bash.sandboxMode` reports a confining mode at registration: `sandbox_permissions`, an enum of the closed escalation-target vocabulary — `workspace-write`/`danger-full-access`, every mode a session could ever escalate TO — and `justification`, required together with it. The enum is deliberately NOT cut down to the modes wider than the executor's DEFAULT: schemas are registry-global while the effective mode is per-session and switchable, so a default-relative ladder strands a session overridden NARROWER than the default (with a `danger-full-access` default and a `read-only` override it would advertise nothing at all — confined, but with no lever). Strict widening is instead enforced at EXECUTION against the call's effective mode (session override ?? executor default): a request that is not strictly wider fails closed with its own text and prompts no one. An escalating call resolves approval BEFORE anything executes — no `ctx.approval` composed, or no agent on the execution, fails closed with its own text; otherwise `ctx.approval.request({ agent, toolName: 'bash', callId, reason, signal })` with the audit-self-contained reason `escalate sandbox to ${mode}: ${justification}`, while the UI attaches the prompt to the already-streamed call (the command is visible there; the approval RFC's no-arguments rule holds). The four outcomes map to distinct results: `allowed-once` stamps `sandboxMode` onto the bash request and proceeds; `rejected`, `cancelled`, and `unavailable` each produce their own error text, so the model can tell a human "no" from a dismissed prompt from a missing channel. The grant is consumed by the very call that asked; nothing is stored. The tool description teaches — and a denied result itself prompts — the SAME-TURN flow when the fields exist: on a denial a wider mode would cure, escalate immediately in that turn by retrying the exact command once with `sandbox_permissions` (the narrowest mode that suffices) + `justification`, without detouring through chat to ask first — the approval prompt raised by the retry IS how the user consents. Never preemptively; a rejected escalation is final for that command. "Only after a real denial" is deliberately model discipline plus human judgment, not harness bookkeeping — the human sees the exact command and justification on the prompt (see Alternatives for why hard-matching is rejected). No new session events anywhere: the attempt is an ordinary `tool/call` whose logged arguments carry the two fields, the decision is the approval seam's `approval/asked`/`approval/decided` pair, the outcome is an ordinary `tool/result` whose sandbox facts name the mode it ran under. The asker lives in `dsh-tool-bash`, NOT the executor: a transport seam has no `agent`, no `callId`, and no business asking humans questions. @@ -160,6 +159,8 @@ Coverage named at plan time, per tier ([testing policy](../../../testing.md)). - **Ask inside the executor (`dsh-bash-sandbox`)** — rejected: no `agent` to route through, no `callId` to attach the prompt to; adding them teaches a transport seam about sessions and UIs — the tool layer holds both and owns the model-facing vocabulary. - **Auto-retry inside the same tool call** — rejected: a hidden re-entry the log cannot reconstruct: one `tool/call` would have produced two executions with different policies — the retry is a NEW logged call with its own arguments and result facts. - **Advertise the escalation fields unconditionally** — rejected: under `dsh-bash-local` they are a dead lever — advertising an option the harness cannot honor manufactures doomed grants; capability-gating costs one registration-time read. +- **A default-relative escalation ladder (advertise only the modes wider than the executor's registration-time default)** — rejected: per-session overrides make the default the wrong baseline — a session switched narrower than the default loses exactly the lever it needs, and under a `danger-full-access` default the fields vanish entirely while a `read-only`-overridden session stays confined with no escalation path. The enum pins the closed target vocabulary; strict widening is a per-call execution check against the session's effective mode. +- **Per-session dynamic tool schemas** — rejected: schemas are registry-global by design (one assembly vocabulary, the pinned-header snapshot contract), and re-registering per session would buy only what the execution-time strict-wider check already guarantees, at the cost of a per-session schema surface and header churn on every switch. - **Hard-match the retry to a prior denial** — rejected: command-string identity is fragile (quoting, `workdir`, env prefixes, a pipeline retried as its failing stage) — false-rejects honest retries or is trivially satisfied; the real boundary is the human seeing command + justification. Revisit only if `allow_always` grant storage ever needs machine-checkable scopes. - **A generic `env/state` facts map with an owner service** — rejected: approval and sandbox compose independently, so neither's state may drag in a third package; single-key folds are one `findLast` each, dissolving the owner service; no invariant spans the knobs, so atomic multi-key patches bought nothing. - **Narrate via `agent/user-message` + a bus event** — rejected: it presupposes a turn-entry seam that does not exist (the real seam is `agent/prompt-submit`), and pre-step's position serves both the coalesced turn-entry notice and the mid-turn immediacy bound with one listener. @@ -170,10 +171,9 @@ Coverage named at plan time, per tier ([testing policy](../../../testing.md)). ## Acceptance criteria - A denied command retried with `sandbox_permissions` + `justification` prompts the user through the composed answerer chain; a grant runs THAT call under the wider mode (result facts say so) while every other call keeps its own effective mode; every non-grant outcome produces its distinct error text and executes nothing. -- The escalation fields exist exactly when the mounted executor confines and a wider mode exists; a deployment with no ApprovalService fails escalating calls closed and leaves plain calls untouched. +- The escalation fields exist exactly when the mounted executor confines; a request that is not strictly wider than the call's effective mode fails closed with its own text and prompts no one; a deployment with no ApprovalService fails escalating calls closed and leaves plain calls untouched. - The system prompt never states the sandbox mode (an approval `'never'` policy is the one stated knob), and the whole exchange — headers, knob events, notices, approvals, results — reconstructs from the session log alone, with no event types beyond the two knob events. -- N idle-time flips produce at most one anchored event per knob (a net-zero sequence anchors none — a no-op push from a client echoing current selections records nothing); an approval-policy switch is narrated in at most one coalesced notice; a mid-turn sandbox switch is honored by the next call's stamp. -- A resumed session's overrides apply and are reported to the editor with no special-casing; a default changed while the process was down is narrated before the session's first new request, attributed to the operator. +- N idle-time flips produce at most one anchored event per knob (a net-zero sequence anchors none — a no-op push from a client echoing current selections records nothing); an approval-policy switch is narrated in at most one coalesced notice; a mid-turn sandbox switch is honored by the next call's stamp.- A resumed session's overrides apply and are reported to the editor with no special-casing; a default changed while the process was down is narrated before the session's first new request, attributed to the operator. - Two concurrent sessions never see each other's state, notices, or config options. - `agent-loop` is untouched — everything rides `systemPrompt.section`, `SessionEventMap` merging, `agent.inject()`, `agent/pre-step`, `agent/prompt-submit`, and the ACP handler surface. @@ -186,7 +186,7 @@ Coverage named at plan time, per tier ([testing policy](../../../testing.md)). - **Landlock confinement is only as complete as the running kernel's ABI.** Reported as `enforcement: 'partial'` rather than refused — the deliberate trade that keeps the fallback available on older-kernel hosts. - **The launcher arrives as a registry dependency.** Trusted through its own repository's release pipeline (reviewed C source, native CI builders, byte-pinned publish rehearsal) plus this repo's version pin — the real-kernel e2e legs are what vouch for behavior through the installed bytes. - **The model may over-ask.** Escalating without a real denial, or picking `danger-full-access` where `workspace-write` suffices: the description steers and the enum forces the ladder, but the human prompt is the actual gate; the `approval/asked` reasons make over-asking auditable, and a `prepend` policy answerer can auto-reject patterns a deployment never wants. -- **The advertised ladder reflects the executor's registration-time DEFAULT, not per-session effective mode** (schemas are registry-global) — a session overridden wider may be offered an escalation it does not need, which is harmless. +- **The advertised target set is static while the effective mode is per-session** (schemas are registry-global) — a session already at the widest mode is still offered the fields. Harmless by construction: the strict-wider check at execution, not the enum, is the safety boundary — a non-widening request fails with its own text and never prompts anyone. - **A granted escalation is not a working sandbox.** An unavailable backend still fails closed even for a granted escalation to a confining mode — at `confine()` when the platform has no chain or every probe fails, at execution when an unprobed sole runner refuses (classified as a sandbox failure, not a command failure) — while a granted `danger-full-access` run never touches the provider at all: there the grant, not the probe, is the authority. - **An idle switch lives in bridge memory until the next turn anchors it.** A crash in that window reverts it (reported honestly on `session/load`), and a session that never runs another turn never persists it — accepted, with the loop-owned idle commit turn named as future work if durability becomes a requirement. - **The approval narrator's restart baseline parses prompt prose.** The closed candidate sentence is owned by the writing module itself, so a wording change is a coordinated writer+parser edit in one file; a session whose headers predate the section silently adopts the current policy without a notice. From 6292d522362406d46ba5f74d7c0b3631dd6c0047 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Fri, 10 Jul 2026 14:19:06 +0800 Subject: [PATCH 165/232] feat(skill): move catalogs into session prefixes --- AGENTS.md | 1 + docs/architecture.md | 2 +- docs/capability-seams.md | 9 +- docs/config-catalog.md | 41 ++- docs/cordis-catalog/events.md | 4 +- docs/cordis-catalog/services.md | 5 +- docs/core-data-structures/core.md | 2 +- docs/core-data-structures/skills.md | 20 +- docs/event-producer-consumer.md | 8 +- docs/module-graph.md | 30 +- .../feature/2026-07-05-skill-system.md | 26 +- docs/tool-catalog.md | 4 +- .../tests/snapshots/skill-load/session.jsonl | 58 ++-- .../snapshots/skill-load/stdout.golden.jsonl | 2 +- .../tests/snapshots/text-turn/session.jsonl | 72 ++--- packages/README.md | 1 + .../cordis/tool-cordis/src/api-catalog.ts | 3 +- packages/core/README.md | 7 +- packages/core/agent-core/README.md | 6 +- packages/core/agent-core/src/index.ts | 13 +- .../core/agent-core/tests/agent-core.spec.ts | 16 +- packages/core/agent-core/tsconfig.json | 6 +- packages/core/skill/README.md | 38 --- packages/core/tool-skill/README.md | 15 - packages/core/tool-skill/src/index.ts | 73 ----- .../core/tool-skill/tests/tool-skill.spec.ts | 149 ---------- packages/skill/README.md | 11 + .../{core => skill}/skill-local/README.md | 2 +- .../{core => skill}/skill-local/package.json | 0 .../{core => skill}/skill-local/src/index.ts | 0 .../skill-local/tests/skill-local.spec.ts | 0 .../{core => skill}/skill-local/tsconfig.json | 0 packages/skill/skill/README.md | 34 +++ packages/{core => skill}/skill/package.json | 6 +- packages/{core => skill}/skill/src/index.ts | 198 ++++++------- .../{core => skill}/skill/tests/skill.spec.ts | 160 +++++++--- packages/{core => skill}/skill/tsconfig.json | 4 +- packages/skill/tool-skill/README.md | 21 ++ .../{core => skill}/tool-skill/package.json | 3 + packages/skill/tool-skill/src/index.ts | 152 ++++++++++ .../skill/tool-skill/tests/tool-skill.spec.ts | 275 ++++++++++++++++++ .../{core => skill}/tool-skill/tsconfig.json | 5 +- packages/ui/acp-agent/src/index.ts | 2 +- packages/ui/acp-agent/tests/acp-agent.spec.ts | 21 +- packages/ui/stdio-agent/src/index.ts | 2 +- .../ui/stdio-agent/tests/stdio-agent.spec.ts | 21 +- pnpm-lock.yaml | 140 +++++---- scripts/gen-doc-graphs.ts | 8 +- scripts/gen-module-graph.ts | 1 + scripts/gen-tool-catalog.ts | 2 +- scripts/type-equiv.manifest.json | 18 +- tsconfig.base.json | 1 + tsconfig.build.json | 6 +- tsconfig.json | 6 +- 54 files changed, 1019 insertions(+), 691 deletions(-) delete mode 100644 packages/core/skill/README.md delete mode 100644 packages/core/tool-skill/README.md delete mode 100644 packages/core/tool-skill/src/index.ts delete mode 100644 packages/core/tool-skill/tests/tool-skill.spec.ts create mode 100644 packages/skill/README.md rename packages/{core => skill}/skill-local/README.md (93%) rename packages/{core => skill}/skill-local/package.json (100%) rename packages/{core => skill}/skill-local/src/index.ts (100%) rename packages/{core => skill}/skill-local/tests/skill-local.spec.ts (100%) rename packages/{core => skill}/skill-local/tsconfig.json (100%) create mode 100644 packages/skill/skill/README.md rename packages/{core => skill}/skill/package.json (69%) rename packages/{core => skill}/skill/src/index.ts (74%) rename packages/{core => skill}/skill/tests/skill.spec.ts (66%) rename packages/{core => skill}/skill/tsconfig.json (69%) create mode 100644 packages/skill/tool-skill/README.md rename packages/{core => skill}/tool-skill/package.json (95%) create mode 100644 packages/skill/tool-skill/src/index.ts create mode 100644 packages/skill/tool-skill/tests/tool-skill.spec.ts rename packages/{core => skill}/tool-skill/tsconfig.json (72%) diff --git a/AGENTS.md b/AGENTS.md index c9a2dccade..1bc2308891 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -15,6 +15,7 @@ packages/ Harness packages at packages///, all named @deepseek-ai llm/ LLM seam + the DeepSeek adapters (hand-rolled + pi-ai design twin) bash/ bash executor seam + local impl + model-facing bash tools fs/ filesystem seam + local impl + policy gate + read/write/edit tools + skill/ skill provider registry + local impl + catalog/loader tool web/ web seam + search/fetch providers + model-facing web tools compact/ compaction seam + basic backend subagent/ subagent seam + spawn/fork/ACP backends + delegation tool diff --git a/docs/architecture.md b/docs/architecture.md index 0fbdd94463..e0b229bca4 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -17,7 +17,6 @@ The default distribution is a composition, not a hierarchy. `packages/core/` is | `ctx.sessions` | `dsh-session` | in-memory event-sourced sessions | | `ctx.systemPrompt` | `dsh-system-prompt` | ordered prompt sections, tool schemas, and prompt variables | | `ctx.tools` | `dsh-tools` | tool registry and [execution pipeline](tool-execution-pipeline.md) | -| `ctx.skills` | `dsh-skill` | provider registry for skills and request-time guidance | | `ctx.agents` | `dsh-agent` | live agent registry, public `Agent` handle, `agent/*` vocabulary | | `ctx.agentLoop` | `dsh-agent-loop` | shipped `ReactLoopAgent` driver | @@ -29,6 +28,7 @@ The default distribution is a composition, not a hierarchy. `packages/core/` is | `ctx.bash` | [`bash/`](../packages/bash/README.md) | foreground/background command execution | | `ctx.codeRuntime` | [`code-runtime/`](../packages/code-runtime/README.md) | model-written program execution | | `ctx.fs` | [`fs/`](../packages/fs/README.md) | filesystem provider primitives and policy events | +| `ctx.skills` | [`skill/`](../packages/skill/README.md) | skill provider registry and progressive disclosure | | `ctx.web` | [`web/`](../packages/web/README.md) | search/fetch provider registries | | `ctx.compact` | [`compact/`](../packages/compact/README.md) | session-surface compaction | | `ctx.subagents` | [`subagent/`](../packages/subagent/README.md) | named delegation providers | diff --git a/docs/capability-seams.md b/docs/capability-seams.md index 39cbc4832f..3c8fdfe6e9 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -41,10 +41,10 @@ flowchart LR pkg_stdio_agent["stdio-agent"] pkg_skill["skill"] svc_skills["ctx.skills
Skill provider registry"] - pkg_agent_core["agent-core"] pkg_skill_local["skill-local"] svc_agents["ctx.agents
Agent registry"] svc_agentLoop["ctx.agentLoop
Concrete loop driver"] + pkg_agent_core["agent-core"] pkg_bash["bash"] svc_bash["ctx.bash
Bash executor seam"] pkg_bash_local["bash-local"] @@ -91,6 +91,7 @@ flowchart LR pkg_session_persistence_jsonl --> svc_sessionPersistence pkg_session_persistence_sqlite --> svc_sessionPersistence pkg_skill --> svc_skills + pkg_skill_local --> svc_skills pkg_stdio_agent --> svc_userInteraction pkg_subagent --> svc_subagents pkg_subagent_acp --> svc_subagents @@ -125,8 +126,6 @@ flowchart LR svc_sessions --> pkg_invariants svc_sessions --> pkg_session_persistence svc_sessions --> pkg_subagent_inprocess - svc_skills --> pkg_agent_core - svc_skills --> pkg_skill_local svc_skills --> pkg_tool_skill svc_subagents --> pkg_tool_subagent svc_systemPrompt --> pkg_agent_loop @@ -156,9 +155,9 @@ flowchart LR | `ctx.sessions` | `core` | [`session`](../packages/core/session) | - | [`agent-loop`](../packages/core/agent-loop), [`agent`](../packages/core/agent), [`session-persistence`](../packages/session-persistence/session-persistence), [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`invariants`](../packages/support/invariants) | - | Owns append-only Session instances and emits the durable session event feed. | | `ctx.sessionPersistence` | `seam` | [`session-persistence`](../packages/session-persistence/session-persistence) | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp) | - | Backends persist the same SessionEvent vocabulary; apps choose a backend at composition time. | | `ctx.systemPrompt` | `core` | [`system-prompt`](../packages/core/system-prompt) | - | [`agent-loop`](../packages/core/agent-loop), [`tools`](../packages/core/tools), [`tool-fs`](../packages/fs/tool-fs), [`tool-web`](../packages/web/tool-web) | - | Collects prompt sections and model-facing tool schemas for each step. | -| `ctx.tools` | `core` | [`tools`](../packages/core/tools) | - | [`agent-loop`](../packages/core/agent-loop), [`tool-ask-user`](../packages/ui/tool-ask-user), [`tool-bash`](../packages/bash/tool-bash), [`tool-cordis`](../packages/cordis/tool-cordis), [`tool-fs`](../packages/fs/tool-fs), [`tool-skill`](../packages/core/tool-skill), [`tool-subagent`](../packages/subagent/tool-subagent), [`tool-todo`](../packages/todo/tool-todo), [`tool-web`](../packages/web/tool-web), [`acp`](../packages/ui/acp) | - | Registers tool definitions, exposes schemas to the prompt, and routes calls through tools/pre-execute and tools/post-execute. | +| `ctx.tools` | `core` | [`tools`](../packages/core/tools) | - | [`agent-loop`](../packages/core/agent-loop), [`tool-ask-user`](../packages/ui/tool-ask-user), [`tool-bash`](../packages/bash/tool-bash), [`tool-cordis`](../packages/cordis/tool-cordis), [`tool-fs`](../packages/fs/tool-fs), [`tool-skill`](../packages/skill/tool-skill), [`tool-subagent`](../packages/subagent/tool-subagent), [`tool-todo`](../packages/todo/tool-todo), [`tool-web`](../packages/web/tool-web), [`acp`](../packages/ui/acp) | - | Registers tool definitions, exposes schemas to the prompt, and routes calls through tools/pre-execute and tools/post-execute. | | `ctx.userInteraction` | `seam` | [`user-interaction`](../packages/ui/user-interaction) | [`stdio-agent`](../packages/ui/stdio-agent), [`acp`](../packages/ui/acp) | [`tool-ask-user`](../packages/ui/tool-ask-user), [`stdio-agent`](../packages/ui/stdio-agent), [`acp`](../packages/ui/acp) | - | UI front doors provide the active human-answer provider; tool-ask-user pauses a tool call on the provider-neutral ask() promise. | -| `ctx.skills` | `core` | [`skill`](../packages/core/skill) | - | [`agent-core`](../packages/core/agent-core), [`skill-local`](../packages/core/skill-local), [`tool-skill`](../packages/core/tool-skill) | - | Merges provider skill catalogs, injects request-time listings, and serves full skill bodies to the skill tool. | +| `ctx.skills` | `seam` | [`skill`](../packages/skill/skill) | [`skill-local`](../packages/skill/skill-local) | [`tool-skill`](../packages/skill/tool-skill) | - | Merges provider skill catalogs; tool-skill renders the session-prefix catalog and loads complete skill bodies. | | `ctx.agents` | `core` | [`agent`](../packages/core/agent) | - | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp), [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`stdio-agent`](../packages/ui/stdio-agent), [`invariants`](../packages/support/invariants) | - | Owns live Agent handles and the create/resume factory seam. | | `ctx.agentLoop` | `bundle` | [`agent-loop`](../packages/core/agent-loop) | - | [`agent-core`](../packages/core/agent-core) | - | The one concrete loop plugin; extension packages depend on dsh-agent events and services, not on this package. | | `ctx.bash` | `seam` | [`bash`](../packages/bash/bash) | [`bash-local`](../packages/bash/bash-local) | [`tool-bash`](../packages/bash/tool-bash), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | - | The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors can replace bash-local. | diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 79de78717c..fa0f7b25b8 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -53,7 +53,7 @@ export interface Config { toolOrder?: string[] /** Directory the JSONL session backend writes under. Defaults to `./.sessions`. */ persistenceRoot?: string - /** Skill registry/local-provider config forwarded to the shared agent-core spine. */ + /** Skill registry, local-provider, and model-facing consumer config forwarded to agent-core. */ skills?: agentCore.SkillConfig } ``` @@ -70,7 +70,7 @@ Source: [`packages/ui/acp-agent/src/index.ts:50`](../packages/ui/acp-agent/src/i * `agents` to the agent loop (an app that pre-creates no agents, like the ACP * bridge, simply omits it), `persona` and `toolOrder` to the system-prompt * plugin (the deployment's persona section and the explicit model-facing tool - * order), and `skills` to the skill registry/local provider. Every field is + * order), and `skills` to the skill registry/local provider/tool consumer. Every field is * optional INPUT here because each owner's schema supplies the default (`[]` / * `''` / absent — lexicographic / the DSH skill roots); the schema is the * INTERSECTION of the owners' own schemas, so validation and defaulting can @@ -83,22 +83,24 @@ export interface Config { persona?: SystemPromptConfig['persona'] /** The explicit model-facing tool order (see dsh-system-prompt's `Config`). */ toolOrder?: SystemPromptConfig['toolOrder'] - /** Skill registry and local provider config. */ + /** Skill registry, local provider, and model-facing consumer config. */ skills?: SkillConfig } -/** Skill bundle config forwarded to the registry and the local provider. */ +/** Skill bundle config forwarded to the registry, local provider, and model-facing consumer. */ export interface SkillConfig { - /** Registry-level prompt/cache settings. */ + /** Registry-level discovery cache settings. */ registry?: SkillRegistryConfig /** Local filesystem skill provider settings. */ local?: SkillLocal.Config + /** Model-facing skill catalog and tool settings. */ + tool?: toolSkill.Config } ``` -Depends on: [`AgentLoopConfig`](#deepseek-aidsh-agent-loop) · [`SkillLocal`](../packages/core/skill-local/src/index.ts) · [`SkillRegistryConfig`](#deepseek-aidsh-skill) · [`SystemPromptConfig`](#deepseek-aidsh-system-prompt) +Depends on: [`AgentLoopConfig`](#deepseek-aidsh-agent-loop) · [`SkillLocal`](../packages/skill/skill-local/src/index.ts) · [`SkillRegistryConfig`](#deepseek-aidsh-skill) · [`SystemPromptConfig`](#deepseek-aidsh-system-prompt) · [`toolSkill`](../packages/skill/tool-skill/src/index.ts) -Source: [`packages/core/agent-core/src/index.ts:84`](../packages/core/agent-core/src/index.ts) +Source: [`packages/core/agent-core/src/index.ts:86`](../packages/core/agent-core/src/index.ts) ## `@deepseek-ai/dsh-agent-loop` @@ -496,14 +498,12 @@ Source: [`packages/session-persistence/session-persistence-sqlite/src/index.ts:5 ```ts config-catalog /** Skill registry configuration. */ export interface Config { - /** Maximum rendered description/whenToUse length in the prompt listing; minimum 3. */ - promptFieldMaxLength?: number - /** Maximum number of cwd/provider discovery promises kept in the in-memory cache. */ + /** Maximum number of completed cwd/provider catalog snapshots kept in memory. */ collectCacheMaxEntries?: number } ``` -Source: [`packages/core/skill/src/index.ts:111`](../packages/core/skill/src/index.ts) +Source: [`packages/skill/skill/src/index.ts:112`](../packages/skill/skill/src/index.ts) ## `@deepseek-ai/dsh-skill-local` @@ -521,7 +521,7 @@ export interface Config { } ``` -Source: [`packages/core/skill-local/src/index.ts:39`](../packages/core/skill-local/src/index.ts) +Source: [`packages/skill/skill-local/src/index.ts:39`](../packages/skill/skill-local/src/index.ts) ## `@deepseek-ai/dsh-stdio-agent` @@ -547,7 +547,7 @@ export interface Config { persistenceRoot?: string /** stdin-chat banner printed once on start. Defaults to `'ready.'`. */ welcome?: string - /** Skill registry/local-provider config forwarded to the shared agent-core spine. */ + /** Skill registry, local-provider, and model-facing consumer config forwarded to agent-core. */ skills?: agentCore.SkillConfig /** * If set, the `main` agent RESUMES this persisted session id instead of @@ -763,6 +763,20 @@ export interface Config { Source: [`packages/fs/tool-fs/src/index.ts:48`](../packages/fs/tool-fs/src/index.ts) +## `@deepseek-ai/dsh-tool-skill` + +Requires: `tools` · `skills` + +```ts config-catalog +/** Model-facing skill catalog configuration. */ +export interface Config { + /** Maximum normalized description length rendered in the session catalog; minimum 3. */ + catalogDescriptionMaxLength?: number +} +``` + +Source: [`packages/skill/tool-skill/src/index.ts:19`](../packages/skill/tool-skill/src/index.ts) + ## `@deepseek-ai/dsh-tool-subagent` Requires: `tools` · `subagents` @@ -941,7 +955,6 @@ These load from a `cordis.yml` entry with no `config:` block; they declare no co - `@deepseek-ai/dsh-timeout-policy` — requires `tools` ([`packages/timeout/timeout-policy/src/index.ts`](../packages/timeout/timeout-policy/src/index.ts)) - `@deepseek-ai/dsh-tool-ask-user` — requires `tools` · `userInteraction` ([`packages/ui/tool-ask-user/src/index.ts`](../packages/ui/tool-ask-user/src/index.ts)) - `@deepseek-ai/dsh-tool-bash` — requires `tools` · `bash` · `systemPrompt` ([`packages/bash/tool-bash/src/index.ts`](../packages/bash/tool-bash/src/index.ts)) -- `@deepseek-ai/dsh-tool-skill` — requires `tools` · `skills` ([`packages/core/tool-skill/src/index.ts`](../packages/core/tool-skill/src/index.ts)) - `@deepseek-ai/dsh-tool-todo` — requires `tools` ([`packages/todo/tool-todo/src/index.ts`](../packages/todo/tool-todo/src/index.ts)) - `@deepseek-ai/dsh-tools` — requires `systemPrompt` ([`packages/core/tools/src/index.ts`](../packages/core/tools/src/index.ts)) - `@deepseek-ai/dsh-user-interaction` ([`packages/ui/user-interaction/src/index.ts`](../packages/ui/user-interaction/src/index.ts)) diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 05321e6618..7049c2f889 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -259,7 +259,7 @@ A skill provider became resolvable in the `ctx.skills` registry. Consumers can o 'skill/provider-added'(provider: SkillProvider): void ``` -Source: [`packages/core/skill/src/index.ts:131`](../../packages/core/skill/src/index.ts) +Source: [`packages/skill/skill/src/index.ts:130`](../../packages/skill/skill/src/index.ts) ### `skill/provider-removed` — emit @@ -269,7 +269,7 @@ A skill provider left the registry because its plugin fiber was disposed. 'skill/provider-removed'(name: string): void ``` -Source: [`packages/core/skill/src/index.ts:137`](../../packages/core/skill/src/index.ts) +Source: [`packages/skill/skill/src/index.ts:136`](../../packages/skill/skill/src/index.ts) ## `subagent/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 405e3d6f62..f1b0cbb6ba 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -189,17 +189,16 @@ Source: [`packages/core/session/src/index.ts:405`](../../packages/core/session/s ## `ctx.skills` — `SkillService` -Registry of skill providers. It merges provider catalogs with stable first-wins duplicate handling, exposes sorted model-visible summaries, loads full skill bodies on demand, and renders the request-time catalog fragment. +Registry of skill providers. It merges provider catalogs with stable first-wins duplicate handling, exposes sorted model-visible summaries, and loads full skill bodies on demand. ```ts cordis-catalog registerProvider(provider: SkillProvider): () => void register(skill: SkillRegistration): () => void async list(options: SkillLookupOptions = {}): Promise async get(name: string, options: SkillLookupOptions = {}): Promise -async renderModelListing(options: SkillLookupOptions = {}): Promise ``` -Source: [`packages/core/skill/src/index.ts:158`](../../packages/core/skill/src/index.ts) +Source: [`packages/skill/skill/src/index.ts:157`](../../packages/skill/skill/src/index.ts) ## `ctx.subagents` — `SubagentService` diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index 281bf7be48..3d3891649f 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -23,7 +23,7 @@ Everything else is documented on a **sub-page**, not here. The rule that draws t | [bash.md](bash.md) | the bash executor seam: `BashExecRequest`/`Spec`, `BashRunResult`, background `BashTask`s | | [code-runtime.md](code-runtime.md) | the code-execution seam: `CodeRunRequest`/`Result`, binding namespaces, captured logs, the `CodeRunFailure` taxonomy | | [filesystem.md](filesystem.md) | the filesystem seam: `FsTarget`, read/write/edit outcomes, observed-file state, `FsErrorCode` | -| [skills.md](skills.md) | the skill service: discovery priority, `SkillSummary`/`SkillDefinition`, prompt listing, model-facing `skill` loading | +| [skills.md](skills.md) | the skill service: discovery priority, `SkillSummary`/`SkillDefinition`, session-prefix catalog, model-facing `skill` loading | | [compaction.md](compaction.md) | the compaction seam: the `compact/*` session events, `CompactionResult`, the `CompactService` interface | | [subagent.md](subagent.md) | the subagent seam: the named-provider registry, `SubagentStartRequest`/`Result`/`Run`, the start-time-vs-runtime capability split | | [web.md](web.md) | the web access seam: `WebSearchRequest`/`Result`, `WebFetchRequest`/`Result`, `WebFetchBody`, provider/capability status, `WebError` | diff --git a/docs/core-data-structures/skills.md b/docs/core-data-structures/skills.md index fb72ab6f57..b356aba720 100644 --- a/docs/core-data-structures/skills.md +++ b/docs/core-data-structures/skills.md @@ -1,12 +1,12 @@ # Skills -The skill stack is split across three core packages: the registry ([dsh-skill](../../packages/core/skill), `ctx.skills`) merges provider catalogs and renders request-time guidance; the local provider ([dsh-skill-local](../../packages/core/skill-local)) scans project/custom/user directories; the consumer ([dsh-tool-skill](../../packages/core/tool-skill), model-facing `skill`) loads one complete body for progressive disclosure. Skills are optional instructions, not session events, so their vocabulary lives here rather than in [core.md](core.md). +The [skill capability family](../../packages/skill) is split across three packages: the registry ([dsh-skill](../../packages/skill/skill), `ctx.skills`) merges provider catalogs; the local provider ([dsh-skill-local](../../packages/skill/skill-local)) scans project/custom/user directories; the consumer ([dsh-tool-skill](../../packages/skill/tool-skill)) owns the session-prefix catalog and model-facing `skill` tool. Skills are optional instructions, not session events, so their vocabulary lives here rather than in [core.md](core.md). -Source: [`packages/core/skill/src/index.ts`](../../packages/core/skill/src/index.ts), [`packages/core/skill-local/src/index.ts`](../../packages/core/skill-local/src/index.ts), and [`packages/core/tool-skill/src/index.ts`](../../packages/core/tool-skill/src/index.ts). +Source: [`packages/skill/skill/src/index.ts`](../../packages/skill/skill/src/index.ts), [`packages/skill/skill-local/src/index.ts`](../../packages/skill/skill-local/src/index.ts), and [`packages/skill/tool-skill/src/index.ts`](../../packages/skill/tool-skill/src/index.ts). ## Provider registry -`ctx.skills` is a multi-provider registry. Providers can represent local directories, embedded plugin data, HTTP catalogs, or another source. The registry validates candidates, resolves duplicate skill names first-wins by rank/provider order/local order, and sorts the final model-visible catalog by `name` for deterministic prompt text. A provider `list()` rejection is logged and skipped without caching the degraded catalog; malformed candidates still fail fast because they violate the provider contract. +`ctx.skills` is a multi-provider registry. Providers can represent local directories, embedded plugin data, HTTP catalogs, or another source. Provider plugins register synchronously during `apply()`; remote initialization, authentication, and discovery are awaited by `list()`. The registry validates candidates, resolves duplicate skill names first-wins by rank/provider order/local order, and sorts the final summaries by `name` for deterministic consumers. A provider `list()` rejection is logged and skipped without caching the degraded catalog; malformed candidates still fail fast because they violate the provider contract. ```ts type-equiv interface SkillProvider { @@ -40,7 +40,7 @@ type SkillSource = 'project-dsh' | 'project-agents' | 'runtime' | 'user-dsh' | ' ## Summaries, candidates, and complete definitions -`SkillSummary` is the model-visible shape: the request prompt gets name, source, provider, description, and optional routing hint, but never the body or absolute file path. `disableModelInvocation` hides a skill from listings while allowing trusted code to load it by name. +`SkillSummary` is the registry's model-invocable summary shape. Consumers choose which fields to render; the session catalog uses only `name` and `description`, never the body or absolute file path. `disableModelInvocation` hides a skill from model listings while allowing trusted code to load it by name. ```ts type-equiv interface SkillSummary { @@ -92,25 +92,25 @@ type SkillRegistration = Omit & { ## Lookup and configuration -Skill lookup is cwd-sensitive because providers may expose workspace-local skills. If no git root is found, the local provider treats the supplied cwd itself as the project root. +Skill lookup is cwd-sensitive because providers may expose workspace-local skills, and its optional signal cancels provider work for the caller. If no git root is found, the local provider treats the supplied cwd itself as the project root. ```ts type-equiv interface SkillLookupOptions { cwd?: string | undefined + signal?: AbortSignal | undefined } ``` -The registry owns prompt/cache bounds. The local provider owns filesystem roots (`dshHome`, `agentsHome`, and `customSkillDirs`). +The registry owns only its discovery-cache bound. The local provider owns filesystem roots (`dshHome`, `agentsHome`, and `customSkillDirs`). The consumer owns its catalog description bound. ```ts type-equiv interface Config { - promptFieldMaxLength?: number collectCacheMaxEntries?: number } ``` -## Prompt and tool contract +## Session catalog and tool contract -`ctx.skills.renderModelListing()` returns a `## Skills` fragment wrapped in ``. Descriptions and `whenToUse` are whitespace-normalized, length-capped, XML-escaped, and have `{{` / `}}` split before rendering so skill metadata cannot be parsed as prompt-template variables. The listing is appended as a late `system-prompt/assemble` section for the calling agent, so it remains cwd-sensitive while still flowing through the reconstructable system-prompt path. +`dsh-tool-skill` contributes a user-role `` through `agent/session-prefix`. The catalog contains sorted skill `name` and normalized, XML-escaped `description` only; it omits bodies, paths, sources, providers, and routing hints. Prefix discovery forwards the caller's abort signal through `SkillLookupOptions`. `catalogDescriptionMaxLength` is the consumer config for the description bound, with default `500` and integer minimum `3`. Its request-only, header-logged lifecycle is defined by the [session-prefix RFC](../rfc/implemented/feature/2026-07-07-session-prefix.md). -The model-facing `skill({ name })` tool validates the kebab-case name, loads the complete definition for the calling agent cwd, rejects unknown or `disableModelInvocation` skills, and returns a `` block with the body plus provider resource guidance. The tool result is the only v1 path that exposes full skill instructions to the model. +The model-facing `skill({ name })` tool validates the kebab-case name, loads the complete definition for the calling agent cwd, reports an unresolved skill as unknown or no longer available, rejects `disableModelInvocation` skills, and returns a tool result containing ``, ``, and ``. `resourceBase` resolves explicitly referenced scripts, references, and assets only as needed; the loaded result does not enumerate a skill directory. The tool result is the model-visible path for complete instructions. diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 9191bbd50f..dfef78092d 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -14,7 +14,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:370`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | | `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:290`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | | `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:394`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:441`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:441`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`tool-skill`](../packages/skill/tool-skill) | | `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:305`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `agent/status` | `emit` | [`packages/core/agent/src/types.ts:281`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:451`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | @@ -26,13 +26,13 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `session/created` | `emit` | [`packages/core/session/src/index.ts:39`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence) | | `session/event` | `emit` | [`packages/core/session/src/index.ts:47`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence), [`stdio-agent`](../packages/ui/stdio-agent) | | `session/flush` | `parallel` | [`packages/core/session/src/index.ts:57`](../packages/core/session/src/index.ts) | [`agent-loop`](../packages/core/agent-loop) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | -| `skill/provider-added` | `emit` | [`packages/core/skill/src/index.ts:131`](../packages/core/skill/src/index.ts) | [`skill`](../packages/core/skill) (`emit`) | - | -| `skill/provider-removed` | `emit` | [`packages/core/skill/src/index.ts:137`](../packages/core/skill/src/index.ts) | [`skill`](../packages/core/skill) (`emit`) | - | +| `skill/provider-added` | `emit` | [`packages/skill/skill/src/index.ts:130`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | +| `skill/provider-removed` | `emit` | [`packages/skill/skill/src/index.ts:136`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | | `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:98`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:72`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | | `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:83`](../packages/subagent/subagent/src/index.ts) | - | [`tool-subagent`](../packages/subagent/tool-subagent) | | `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:91`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | -| `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:38`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | [`skill`](../packages/core/skill) | +| `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:38`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | | `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:44`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | | `tools/change` | `emit` | [`packages/core/tools/src/index.ts:118`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | | `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:97`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`timeout-policy`](../packages/timeout/timeout-policy) | diff --git a/docs/module-graph.md b/docs/module-graph.md index a11ccb862b..cc1e91058d 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -21,10 +21,7 @@ flowchart TD pkg_agent_core["agent-core"] pkg_agent_loop["agent-loop"] pkg_session["session"] - pkg_skill["skill"] - pkg_skill_local["skill-local"] pkg_system_prompt["system-prompt"] - pkg_tool_skill["tool-skill"] pkg_tools["tools"] end subgraph group_bash["packages/bash"] @@ -38,6 +35,11 @@ flowchart TD pkg_fs_policy["fs-policy"] pkg_tool_fs["tool-fs"] end + subgraph group_skill["packages/skill"] + pkg_skill["skill"] + pkg_skill_local["skill-local"] + pkg_tool_skill["tool-skill"] + end subgraph group_compact["packages/compact"] pkg_compact["compact"] pkg_compact_basic["compact-basic"] @@ -117,6 +119,8 @@ flowchart TD pkg_agent --> pkg_system_prompt pkg_fs_local --> pkg_fs pkg_fs_policy --> pkg_fs + pkg_skill_local --> pkg_fs + pkg_skill_local --> pkg_skill pkg_compact --> pkg_llm pkg_compact --> pkg_session pkg_web_fetch_local --> pkg_timeout @@ -129,8 +133,6 @@ flowchart TD pkg_session_persistence --> pkg_session pkg_llm_replay --> pkg_llm pkg_llm_replay --> pkg_session - pkg_skill --> pkg_agent - pkg_skill --> pkg_system_prompt pkg_tools --> pkg_agent pkg_tools --> pkg_llm pkg_tools --> pkg_system_prompt @@ -153,12 +155,6 @@ flowchart TD pkg_agent_loop --> pkg_session_persistence pkg_agent_loop --> pkg_system_prompt pkg_agent_loop --> pkg_tools - pkg_skill_local --> pkg_fs - pkg_skill_local --> pkg_skill - pkg_tool_skill --> pkg_agent - pkg_tool_skill --> pkg_llm - pkg_tool_skill --> pkg_skill - pkg_tool_skill --> pkg_tools pkg_tool_bash --> pkg_agent pkg_tool_bash --> pkg_bash pkg_tool_bash --> pkg_llm @@ -169,6 +165,10 @@ flowchart TD pkg_tool_fs --> pkg_session pkg_tool_fs --> pkg_system_prompt pkg_tool_fs --> pkg_tools + pkg_tool_skill --> pkg_agent + pkg_tool_skill --> pkg_llm + pkg_tool_skill --> pkg_skill + pkg_tool_skill --> pkg_tools pkg_subagent --> pkg_agent pkg_subagent --> pkg_llm pkg_subagent --> pkg_tools @@ -257,6 +257,7 @@ flowchart TD | --- | --- | --- | | [`brand`](../packages/util/brand) | `util` | — | | [`timeout`](../packages/util/timeout) | `util` | — | +| [`skill`](../packages/skill/skill) | `skill` | — | | [`acp-snapshot`](../packages/support/acp-snapshot) | `support` | — | | [`app-boot`](../packages/ui/app-boot) | `ui` | — | | [`code-runtime`](../packages/code-runtime/code-runtime) | `code-runtime` | — | @@ -273,6 +274,7 @@ flowchart TD | [`agent`](../packages/core/agent) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`fs-local`](../packages/fs/fs-local) | `fs` | [`fs`](../packages/fs/fs) | | [`fs-policy`](../packages/fs/fs-policy) | `fs` | [`fs`](../packages/fs/fs) | +| [`skill-local`](../packages/skill/skill-local) | `skill` | [`fs`](../packages/fs/fs), [`skill`](../packages/skill/skill) | | [`compact`](../packages/compact/compact) | `compact` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`web-fetch-local`](../packages/web/web-fetch-local) | `web` | [`timeout`](../packages/util/timeout), [`web`](../packages/web/web) | | [`web-search-deepseek`](../packages/web/web-search-deepseek) | `web` | [`web`](../packages/web/web) | @@ -281,7 +283,6 @@ flowchart TD | [`hook-protocol`](../packages/hooks/hook-protocol) | `hooks` | [`bash`](../packages/bash/bash), [`session`](../packages/core/session) | | [`session-persistence`](../packages/session-persistence/session-persistence) | `session-persistence` | [`session`](../packages/core/session) | | [`llm-replay`](../packages/support/llm-replay) | `support` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | -| [`skill`](../packages/core/skill) | `core` | [`agent`](../packages/core/agent), [`system-prompt`](../packages/core/system-prompt) | | [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt) | | [`compact-basic`](../packages/compact/compact-basic) | `compact` | [`agent`](../packages/core/agent), [`compact`](../packages/compact/compact), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | @@ -289,10 +290,9 @@ flowchart TD | [`invariants`](../packages/support/invariants) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`user-interaction`](../packages/ui/user-interaction) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm) | | [`agent-loop`](../packages/core/agent-loop) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | -| [`skill-local`](../packages/core/skill-local) | `core` | [`fs`](../packages/fs/fs), [`skill`](../packages/core/skill) | -| [`tool-skill`](../packages/core/tool-skill) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`skill`](../packages/core/skill), [`tools`](../packages/core/tools) | | [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-fs`](../packages/fs/tool-fs) | `fs` | [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | +| [`tool-skill`](../packages/skill/tool-skill) | `skill` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`skill`](../packages/skill/skill), [`tools`](../packages/core/tools) | | [`subagent`](../packages/subagent/subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`tools`](../packages/core/tools) | | [`tool-web`](../packages/web/tool-web) | `web` | [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`web`](../packages/web/web) | | [`timeout-policy`](../packages/timeout/timeout-policy) | `timeout` | [`llm`](../packages/llm/llm), [`timeout`](../packages/util/timeout), [`tools`](../packages/core/tools) | @@ -302,7 +302,7 @@ flowchart TD | [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | | [`tool-ask-user`](../packages/ui/tool-ask-user) | `ui` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | | [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | `guard` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools) | -| [`agent-core`](../packages/core/agent-core) | `core` | [`agent`](../packages/core/agent), [`agent-loop`](../packages/core/agent-loop), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`skill`](../packages/core/skill), [`skill-local`](../packages/core/skill-local), [`system-prompt`](../packages/core/system-prompt), [`tool-bash`](../packages/bash/tool-bash), [`tool-skill`](../packages/core/tool-skill), [`tools`](../packages/core/tools) | +| [`agent-core`](../packages/core/agent-core) | `core` | [`agent`](../packages/core/agent), [`agent-loop`](../packages/core/agent-loop), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`skill`](../packages/skill/skill), [`skill-local`](../packages/skill/skill-local), [`system-prompt`](../packages/core/system-prompt), [`tool-bash`](../packages/bash/tool-bash), [`tool-skill`](../packages/skill/tool-skill), [`tools`](../packages/core/tools) | | [`subagent-acp`](../packages/subagent/subagent-acp) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent) | | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-subagent`](../packages/subagent/tool-subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent), [`tools`](../packages/core/tools) | diff --git a/docs/rfc/implemented/feature/2026-07-05-skill-system.md b/docs/rfc/implemented/feature/2026-07-05-skill-system.md index 45ad964d90..6b42ec1a9d 100644 --- a/docs/rfc/implemented/feature/2026-07-05-skill-system.md +++ b/docs/rfc/implemented/feature/2026-07-05-skill-system.md @@ -6,44 +6,44 @@ Status: implemented Agent products have converged on a skill pattern: keep the request prompt small by listing only available instruction bundles, then load the full body when the model decides a task matches. Codex, Claude Code, OpenCode, and Kimi Code differ in details, but all separate discovery metadata from complete instructions so a workspace can carry reusable behavior without paying the full prompt cost on every turn. -DeepSeek Harness needs the same primitive because project-specific review, plugin-authoring, and tool-usage guidance should live next to the workspace or the user's agent configuration instead of being hard-coded into the loop. The repo is still unreleased, so this change establishes the foundation directly as first-class packages rather than a compatibility layer around an older format. +DeepSeek Harness uses the same primitive so project-specific review, plugin-authoring, and tool-usage guidance lives next to the workspace or the user's agent configuration instead of being hard-coded into the loop. ## Decision -Add `@deepseek-ai/dsh-skill` as the provider registry (`ctx.skills`), `@deepseek-ai/dsh-skill-local` as the shipped local filesystem provider, and `@deepseek-ai/dsh-tool-skill` as the model-facing loader tool. `dsh-agent-core` loads the registry, local provider, and tool by default so stdio and ACP apps get the same behavior while future providers can contribute embedded or remote skills without changing the registry or tool. +`@deepseek-ai/dsh-skill` is the pure provider registry (`ctx.skills`), `@deepseek-ai/dsh-skill-local` is the shipped local filesystem provider, and `@deepseek-ai/dsh-tool-skill` owns the session-prefix catalog and model-facing loader tool. `dsh-agent-core` loads the registry, local provider, and consumer by default so stdio and ACP apps get the same behavior while embedded or remote providers contribute skills without changing the registry or consumer. Its `skills` config forwards `registry`, `local`, and `tool` branches to those owners. -Provider catalogs return ranked candidates. The registry validates each candidate, resolves same-name skills first-wins by rank, provider registration order, and provider-local order, then sorts model-visible summaries by skill name for deterministic prompt text. Runtime `ctx.skills.register(...)` remains a convenience for embedded in-process skills and uses project-over-user priority; `runtime` is reserved as the registry-owned provider name. +Provider plugins register synchronously during `apply()`. Provider catalogs return ranked candidates from awaited `list()` calls, where remote providers perform initialization, authentication, and discovery while honoring the lookup abort signal. The registry validates each candidate, resolves same-name skills first-wins by rank, provider registration order, and provider-local order, then sorts summaries by skill name for deterministic consumers. It caches only completed catalog snapshots and retries when a provider/runtime revision changes during discovery, so an unload cannot freeze a stale, unresolvable skill into a session prefix. Runtime `ctx.skills.register(...)` remains a convenience for embedded in-process skills and uses project-over-user priority; `runtime` is reserved as the registry-owned provider name. -The local provider scans cwd-sensitive project roots, custom roots, and user roots in first-wins rank order: project `.dsh`, project `.agents`, `customSkillDirs`, user `.dsh`, then user `.agents`. The user `.dsh/skills` scan skips `.system` so a system-owned directory is not treated as normal user content. DeepSeek Harness does not ship built-in system skills in v1; plugin-authoring skills can be supplied later by another provider. +The local provider scans cwd-sensitive project roots, custom roots, and user roots in first-wins rank order: project `.dsh`, project `.agents`, `customSkillDirs`, user `.dsh`, then user `.agents`. The user `.dsh/skills` scan skips `.system` so a system-owned directory is not treated as normal user content. DeepSeek Harness does not ship built-in system skills; embedded or remote providers supply additional skills when configured. Each skill is either `/SKILL.md` or `.md` with YAML frontmatter. `name` and `description` are required; `whenToUse`, `disableModelInvocation`, and `metadata` are optional. Names are kebab-case. YAML frontmatter is parsed with the `yaml` package instead of `js-yaml` or a hand-written parser: `yaml` is the already-declared modern parser for this package's limited frontmatter needs, and a narrow parser would either reject valid YAML users expect to work or grow into an unreviewed YAML subset. Local skill filesystem I/O goes through `ctx.fs` when a filesystem service is loaded: project-root lookup probes `.git` with `resolve` and `stat`, root discovery uses `listDir`, and skill reads use `readText`. The Node filesystem remains a fallback for minimal contexts that mount `dsh-skill-local` without the fs seam. Missing roots, unreadable or malformed skill files, and transient provider `list()` failures degrade to warn-and-skip so one bad source does not make every agent request fail; malformed candidates still fail fast because they are provider contract violations. -The service injects a request-time `## Skills` fragment through the existing `system-prompt/assemble` waterfall. It appends a late section for the calling agent instead of mutating `GenerateOptions.system` in `agent/request`, because request configuration is now reconstructable model/sampling state while model-visible content flows through system prompt assembly. The fragment contains only stable routing metadata, splits `{{` / `}}` before template rendering, and is sorted by skill name after first-wins collection, so equivalent workspaces produce deterministic prompt text and better prefix-cache reuse. Full skill bodies are never included in the listing. +`dsh-tool-skill` contributes one user-role `` catalog through [`agent/session-prefix`](2026-07-07-session-prefix.md). The catalog contains sorted skill name and description only; it excludes bodies, paths, sources, providers, and routing hints. Descriptions are whitespace-normalized, XML-escaped, and capped by `catalogDescriptionMaxLength`, whose default is `500` and minimum is `3`. The session-prefix seam freezes the request-only catalog per loop instance and records it in the request header, preserving reconstructability without adding it to durable history. Full skill bodies are never included in the catalog. -The `skill({ name })` tool loads one full skill for the current agent cwd and returns a `` block with the body plus provider resource guidance. Local filesystem skills include base-directory guidance; embedded or remote providers can return URL or opaque provider-managed guidance. Invalid names, unknown skills, and skills marked `disableModelInvocation` return tool errors. v1 does not additionally inject the loaded body into session context; the tool result is the model-visible disclosure path. +The `skill({ name })` tool loads one full skill for the current agent cwd and returns a tool result containing ``, ``, and ``. `resourceBase` supplies a directory, URL, or opaque provider-managed base for explicitly referenced scripts, references, and assets; resources load only as needed, without directory enumeration. An unresolved name reports that the skill is unknown or no longer available; invalid names and skills marked `disableModelInvocation` retain distinct tool errors. The tool result is the model-visible disclosure path. -The data structures and prompt/tool contract are documented in [skills.md](../../../core-data-structures/skills.md), with service signatures in the generated [services catalog](../../../cordis-catalog/services.md). +The data structures and catalog/tool contract are documented in [skills.md](../../../core-data-structures/skills.md), with service signatures in the generated [services catalog](../../../cordis-catalog/services.md). ## Alternatives considered **Inject full skill bodies into every system prompt.** Rejected because it destroys progressive disclosure and makes every request pay for instructions that may not apply. -**Expose skills only as slash commands.** Rejected for v1 because model-initiated loading is the core capability; slash/ACP command advertisement can layer on later without changing discovery. +**Expose skills only as slash commands.** Rejected because model-initiated loading is the core capability; slash/ACP command advertisement does not change discovery. **Put local filesystem scanning directly inside `ctx.skills`.** Rejected because coding agents, web agents, and future plugin ecosystems need different skill sources. A provider registry mirrors the subagent seam: the registry owns conflict resolution and consumers, while implementations own loading. -**Use a separate system-reminder message.** Rejected for the current loop because the provider-neutral system prompt surface is assembled through `system-prompt/assemble`. A later provider-specific surface can still split this fragment if needed. +**Use a system-prompt section.** Rejected because the rendered system prompt is a single string, while the catalog is a user-role `` message with request-only lifecycle requirements. [`agent/session-prefix`](2026-07-07-session-prefix.md) is the selected mechanism: it places the catalog ahead of derived history and records the composed message in the request header. -**Materialize built-in DSH authoring skills under `~/.dsh/skills/.system`.** Rejected for v1 because bundled skills should not write user home on startup, and the product can receive those skills from a later embedded or remote provider. +**Materialize built-in DSH authoring skills under `~/.dsh/skills/.system`.** Rejected because bundled skills do not write user home on startup, and embedded or remote providers supply configured skills. -**Recursively discover nested `**/SKILL.md`.** Rejected for v1. Flat files and one-level directory bundles cover the configured roots while keeping duplicate handling and prompt order easy to reason about. +**Recursively discover nested `**/SKILL.md`.** Rejected. Flat files and one-level directory bundles cover the configured roots while keeping duplicate handling and catalog order easy to reason about. **Hand-parse frontmatter.** Rejected because the accepted schema includes an open `metadata` object. A narrow parser would either reject valid YAML users expect to work or grow into an unreviewed YAML subset. ## Consequences -The agent-core spine now includes one more request-time contributor, one local provider, and one model-facing tool. Skill discovery is cwd-sensitive, so tests and callers that create agents with different session cwd values can observe different project skill overrides by design. +The agent-core spine includes one session-prefix contributor, one local provider, and one model-facing tool. Skill discovery is cwd-sensitive, so callers that create agents with different session cwd values can observe different project skill overrides by design. -The prompt fragment is deterministic for a fixed root set and runtime registration revision, but disk changes are not watched; discovery is memoized until runtime registration invalidates the cache or the process restarts. That keeps v1 simple and avoids adding file watching policy before there is a concrete user flow for hot-reloading skills. +The catalog is deterministic for a fixed root set and runtime registration revision, but disk changes are not watched; discovery is memoized until runtime registration invalidates the cache or the process restarts. diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md index 74d56e1e3a..265c5eb9b5 100644 --- a/docs/tool-catalog.md +++ b/docs/tool-catalog.md @@ -348,7 +348,7 @@ The read-before-write/edit policy is added by `@deepseek-ai/dsh-fs-policy` (an ` ### `skill` -Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt. +Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill. ```json { @@ -365,7 +365,7 @@ Load the full instructions for one available skill by name. Use this when the cu } ``` -Source: [`packages/core/tool-skill/src/index.ts`](../packages/core/tool-skill/src/index.ts) +Source: [`packages/skill/tool-skill/src/index.ts`](../packages/skill/tool-skill/src/index.ts) ## `@deepseek-ai/dsh-tool-subagent` diff --git a/examples/acp-agent/tests/snapshots/skill-load/session.jsonl b/examples/acp-agent/tests/snapshots/skill-load/session.jsonl index eafd879f0a..8d0938306e 100644 --- a/examples/acp-agent/tests/snapshots/skill-load/session.jsonl +++ b/examples/acp-agent/tests/snapshots/skill-load/session.jsonl @@ -1,29 +1,29 @@ -{"type":"session","version":0,"id":"7c71aa6d-03f6-4b23-a997-5aa6304ce44e","createdAt":1783609396672,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-ptkWg8"} -{"type":"turn/start","seq":0,"time":1783609396673,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783609396674,"data":{"content":[{"type":"text","text":"Load the dsh-skill-creator skill with the skill tool, then reply DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783609396682,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783609396683,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}} -{"type":"assistant/chunk","seq":4,"time":1783609396683,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} -{"type":"assistant/chunk","seq":5,"time":1783609396683,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"Load the requested skill."}}} -{"type":"assistant/chunk","seq":6,"time":1783609396683,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"tool-call"}}} -{"type":"assistant/chunk","seq":7,"time":1783609396683,"data":{"turn":1,"step":1,"chunk":{"type":"tool-call-delta","index":1,"id":"call_skill_load","name":"skill","argumentsDelta":"{\"name\":\"dsh-skill-creator\"}"}}} -{"type":"assistant/chunk","seq":8,"time":1783609396683,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"Load the requested skill."}}}} -{"type":"assistant/chunk","seq":9,"time":1783609396683,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"tool-call","id":"call_skill_load","name":"skill","arguments":"{\"name\":\"dsh-skill-creator\"}"}}}} -{"type":"assistant/chunk","seq":10,"time":1783609396683,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":100,"outputTokens":20,"cacheReadTokens":0,"reasoningTokens":5}}}} -{"type":"assistant/chunk","seq":11,"time":1783609396683,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}} -{"type":"assistant/message","seq":12,"time":1783609396684,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"Load the requested skill."},{"type":"tool-call","id":"call_skill_load","name":"skill","arguments":"{\"name\":\"dsh-skill-creator\"}"}],"usage":{"inputTokens":100,"outputTokens":20,"cacheReadTokens":0,"reasoningTokens":5}},"sourceEventSeqs":[4,5,6,7,8,9,10,11],"surfaceOp":"append"} -{"type":"tool/call","seq":13,"time":1783609396684,"data":{"turn":1,"step":1,"callId":"call_skill_load","name":"skill","arguments":"{\"name\":\"dsh-skill-creator\"}"}} -{"type":"tool/result","seq":14,"time":1783609396685,"data":{"turn":1,"step":1,"callId":"call_skill_load","content":[{"type":"text","text":"\n# Skill: dsh-skill-creator\n\nUse this skill to write focused DeepSeek Harness skills.\n\nA skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter.\nFrontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it.\nUse optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills.\nKeep the body procedural, evidence-oriented, and scoped to the workflow the skill owns.\n\nBase directory for this skill: /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-ptkWg8/.dsh/skills/dsh-skill-creator\nResolve relative files mentioned by this skill against the base directory before using them.\n"}],"isError":false},"sourceEventSeqs":[13],"surfaceOp":"append"} -{"type":"step/end","seq":15,"time":1783609396685,"data":{"turn":1,"step":1}} -{"type":"step/start","seq":16,"time":1783609396685,"data":{"turn":1,"step":2}} -{"type":"assistant/chunk","seq":17,"time":1783609396686,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} -{"type":"assistant/chunk","seq":18,"time":1783609396686,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"The skill is loaded."}}} -{"type":"assistant/chunk","seq":19,"time":1783609396686,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":1,"blockType":"text"}}} -{"type":"assistant/chunk","seq":20,"time":1783609396686,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"DONE"}}} -{"type":"assistant/chunk","seq":21,"time":1783609396686,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The skill is loaded."}}}} -{"type":"assistant/chunk","seq":22,"time":1783609396686,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"DONE"}}}} -{"type":"assistant/chunk","seq":23,"time":1783609396686,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":180,"outputTokens":10,"cacheReadTokens":0,"reasoningTokens":4}}}} -{"type":"assistant/chunk","seq":24,"time":1783609396686,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} -{"type":"assistant/message","seq":25,"time":1783609396686,"data":{"turn":1,"step":2,"content":[{"type":"reasoning","text":"The skill is loaded."},{"type":"text","text":"DONE"}],"usage":{"inputTokens":180,"outputTokens":10,"cacheReadTokens":0,"reasoningTokens":4}},"sourceEventSeqs":[17,18,19,20,21,22,23,24],"surfaceOp":"append"} -{"type":"step/end","seq":26,"time":1783609396686,"data":{"turn":1,"step":2}} -{"type":"turn/end","seq":27,"time":1783609396686,"data":{"turn":1,"reason":{"kind":"completed"}}} +{"type":"session","version":0,"id":"9eb4181f-2d05-49d3-98fc-3711fe2f5664","createdAt":1783654655599,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-DhYwNW"} +{"type":"turn/start","seq":0,"time":1783654655602,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":1,"time":1783654655603,"data":{"content":[{"type":"text","text":"Load the dsh-skill-creator skill with the skill tool, then reply DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":2,"time":1783654655608,"data":{"turn":1,"step":1}} +{"type":"request/header","seq":3,"time":1783654655608,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}","messagePrefix":["{{messagePrefix}}"]},"reason":"initial"}} +{"type":"assistant/chunk","seq":4,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} +{"type":"assistant/chunk","seq":5,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"Load the requested skill."}}} +{"type":"assistant/chunk","seq":6,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"tool-call"}}} +{"type":"assistant/chunk","seq":7,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"tool-call-delta","index":1,"id":"call_skill_load","name":"skill","argumentsDelta":"{\"name\":\"dsh-skill-creator\"}"}}} +{"type":"assistant/chunk","seq":8,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"Load the requested skill."}}}} +{"type":"assistant/chunk","seq":9,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"tool-call","id":"call_skill_load","name":"skill","arguments":"{\"name\":\"dsh-skill-creator\"}"}}}} +{"type":"assistant/chunk","seq":10,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":100,"outputTokens":20,"cacheReadTokens":0,"reasoningTokens":5}}}} +{"type":"assistant/chunk","seq":11,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}} +{"type":"assistant/message","seq":12,"time":1783654655609,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"Load the requested skill."},{"type":"tool-call","id":"call_skill_load","name":"skill","arguments":"{\"name\":\"dsh-skill-creator\"}"}],"usage":{"inputTokens":100,"outputTokens":20,"cacheReadTokens":0,"reasoningTokens":5}},"sourceEventSeqs":[4,5,6,7,8,9,10,11],"surfaceOp":"append"} +{"type":"tool/call","seq":13,"time":1783654655609,"data":{"turn":1,"step":1,"callId":"call_skill_load","name":"skill","arguments":"{\"name\":\"dsh-skill-creator\"}"}} +{"type":"tool/result","seq":14,"time":1783654655610,"data":{"turn":1,"step":1,"callId":"call_skill_load","content":[{"type":"text","text":"\n\nBase directory for this skill: /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-DhYwNW/.dsh/skills/dsh-skill-creator\nResolve relative paths mentioned by this skill against the base directory before using them. Load referenced resources only as needed.\n\n\n\nUse this skill to write focused DeepSeek Harness skills.\n\nA skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter.\nFrontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it.\nUse optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills.\nKeep the body procedural, evidence-oriented, and scoped to the workflow the skill owns.\n\n"}],"isError":false},"sourceEventSeqs":[13],"surfaceOp":"append"} +{"type":"step/end","seq":15,"time":1783654655610,"data":{"turn":1,"step":1}} +{"type":"step/start","seq":16,"time":1783654655610,"data":{"turn":1,"step":2}} +{"type":"assistant/chunk","seq":17,"time":1783654655611,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} +{"type":"assistant/chunk","seq":18,"time":1783654655611,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"The skill is loaded."}}} +{"type":"assistant/chunk","seq":19,"time":1783654655611,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":1,"blockType":"text"}}} +{"type":"assistant/chunk","seq":20,"time":1783654655611,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"DONE"}}} +{"type":"assistant/chunk","seq":21,"time":1783654655611,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The skill is loaded."}}}} +{"type":"assistant/chunk","seq":22,"time":1783654655611,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"DONE"}}}} +{"type":"assistant/chunk","seq":23,"time":1783654655611,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":180,"outputTokens":10,"cacheReadTokens":0,"reasoningTokens":4}}}} +{"type":"assistant/chunk","seq":24,"time":1783654655611,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":25,"time":1783654655611,"data":{"turn":1,"step":2,"content":[{"type":"reasoning","text":"The skill is loaded."},{"type":"text","text":"DONE"}],"usage":{"inputTokens":180,"outputTokens":10,"cacheReadTokens":0,"reasoningTokens":4}},"sourceEventSeqs":[17,18,19,20,21,22,23,24],"surfaceOp":"append"} +{"type":"step/end","seq":26,"time":1783654655611,"data":{"turn":1,"step":2}} +{"type":"turn/end","seq":27,"time":1783654655611,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl index 764780c428..6c958b8f02 100644 --- a/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl @@ -2,7 +2,7 @@ {"jsonrpc":"2.0","id":2,"result":{"sessionId":"{{sessionId}}"}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"Load the requested skill."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_skill_load","title":"Load skill dsh-skill-creator","kind":"read","status":"in_progress","rawInput":"dsh-skill-creator"}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_skill_load","status":"completed","content":[{"type":"content","content":{"type":"text","text":"\n# Skill: dsh-skill-creator\n\nUse this skill to write focused DeepSeek Harness skills.\n\nA skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter.\nFrontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it.\nUse optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills.\nKeep the body procedural, evidence-oriented, and scoped to the workflow the skill owns.\n\nBase directory for this skill: {{cwd}}/.dsh/skills/dsh-skill-creator\nResolve relative files mentioned by this skill against the base directory before using them.\n"}}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_skill_load","status":"completed","content":[{"type":"content","content":{"type":"text","text":"\n\nBase directory for this skill: {{cwd}}/.dsh/skills/dsh-skill-creator\nResolve relative paths mentioned by this skill against the base directory before using them. Load referenced resources only as needed.\n\n\n\nUse this skill to write focused DeepSeek Harness skills.\n\nA skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter.\nFrontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it.\nUse optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills.\nKeep the body procedural, evidence-oriented, and scoped to the workflow the skill owns.\n\n"}}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The skill is loaded."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"DONE"}}}} {"jsonrpc":"2.0","id":3,"result":{"stopReason":"end_turn"}} diff --git a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl index a232435517..1e16252a95 100644 --- a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl @@ -1,36 +1,36 @@ -{"type":"session","version":0,"id":"b730423d-e85c-4b6d-a773-19819993f504","createdAt":1783609396263,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-Z31bhA"} -{"type":"turn/start","seq":0,"time":1783609396266,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783609396267,"data":{"content":[{"type":"text","text":"Reply with exactly the word: PONG. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"step/start","seq":2,"time":1783609396269,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783609396269,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-Z31bhA.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. 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Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"skill","description":"Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. 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Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} 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Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":2,"time":1783654655215,"data":{"turn":1,"step":1}} +{"type":"request/header","seq":3,"time":1783654655215,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-OpRKUB.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. 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Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"skill","description":"Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} 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b/packages/README.md index 9f6daaabe1..ebb9ffe912 100644 --- a/packages/README.md +++ b/packages/README.md @@ -13,6 +13,7 @@ Packages are grouped by modular role at `packages///`. The group dir | [`bash/`](bash/README.md) | Bash capability family: the executor seam, a local impl, and the model-facing tool | Product — stable surface | | [`code-runtime/`](code-runtime/README.md) | Code-execution capability family: the abstract runtime seam for model-written programs + a worker-thread backend | Product — stable surface | | [`fs/`](fs/README.md) | Filesystem capability family: the abstract seam, a local impl, and the model-facing file tools | Product — stable surface | +| [`skill/`](skill/README.md) | Skill capability family: the provider registry, local provider, and model-facing catalog/loader | Product — stable surface | | [`compact/`](compact/README.md) | Compaction capability family: the abstract seam + a basic backend (tool deferred) | Product — stable surface | | [`subagent/`](subagent/README.md) | Subagent capability family: the provider-registry seam and the model-facing delegation tool | Product — stable surface | | [`web/`](web/README.md) | Web capability family: the abstract seam, search/fetch provider impls, and the model-facing web tools | Product — stable surface | diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts index 373cb14c7b..9e4235faf6 100644 --- a/packages/cordis/tool-cordis/src/api-catalog.ts +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -156,7 +156,6 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ 'register(skill: SkillRegistration): () => void', 'async list(options: SkillLookupOptions = {}): Promise', 'async get(name: string, options: SkillLookupOptions = {}): Promise', - 'async renderModelListing(options: SkillLookupOptions = {}): Promise', ], }, { @@ -691,7 +690,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'SkillLookupOptions', - declaration: 'export interface SkillLookupOptions {\n cwd?: string | undefined;\n}', + declaration: 'export interface SkillLookupOptions {\n cwd?: string | undefined;\n signal?: AbortSignal | undefined;\n}', }, { name: 'SkillProvider', diff --git a/packages/core/README.md b/packages/core/README.md index f0f6a38d3d..00b54f9fbc 100644 --- a/packages/core/README.md +++ b/packages/core/README.md @@ -1,19 +1,16 @@ # core/ — product API spine -The packages every harness build is assembled from: the session log, the system-prompt assembly, the tool registry, the agent vocabulary, and the one concrete loop that drives them. These are **product** packages — the stable surface plugins and consumers build against. +The session log, system-prompt assembly, tool registry, agent vocabulary, and concrete loop that form the harness's default control spine. These are **product** packages — the stable surface plugins and consumers build against. | Package | Role | ctx key | |---|---|---| | `session/` | Event-sourced session log + in-memory store | `ctx.sessions` | | `system-prompt/` | Prompt-section + tool-schema assembly registry | `ctx.systemPrompt` | | `tools/` | Tool registry + `tools/pre-execute`/`tools/post-execute` pipeline | `ctx.tools` | -| `skill/` | Agent skill provider registry + request-time skill listing | `ctx.skills` | -| `skill-local/` | Local filesystem skill provider | (registers on `ctx.skills`) | -| `tool-skill/` | Model-facing `skill` loader tool | (registers on `ctx.tools`) | | `agent/` | Agent interface, registry, `agent/*` event vocabulary | `ctx.agents` | | `agent-loop/` | The concrete loop plugin: `ReactLoopAgent` + the loop driver | `ctx.agentLoop` | | `agent-core/` | Bundle plugin: the default executor-less/UI-less spine as code | (loads the spine) | `agent-loop` is the one concrete implementation of the `agent` seam and lives here because it is the harness's default product loop; everything else in `core/` is interface/vocabulary. Plugins depend on the `agent` vocabulary, never on `agent-loop` directly, so the loop stays swappable. -`agent-core` is the composition counterpart: one bundle plugin that loads the default spine (`timer` + `llm` + sessions + system-prompt + tools + skill registry + local skill provider + agents + invariants + `tool-bash` + `tool-skill` + `agent-loop`) and forwards `agent-loop`'s `agents` list as its own config. App packages (`ui/stdio-agent`, `ui/acp-agent`) consume it and add only a front door; a leaf adds the swappable backends plus any optional product tools it wants to expose. It lives in `core/` because it composes the shared core while leaving executors, LLM adapters, non-local skill providers, and UI front doors outside the bundle. +`agent-core` is the composition counterpart: one bundle plugin that loads the control spine plus selected default capabilities (`timer` + `llm` + sessions + system-prompt + tools + agents + invariants + the local [skill family](../skill/README.md) + `tool-bash` + `agent-loop`) and forwards `agent-loop`'s `agents` list as its own config. App packages (`ui/stdio-agent`, `ui/acp-agent`) consume it and add only a front door; a leaf adds the swappable backends plus any optional product tools it wants to expose. It lives in `core/` because it composes the shared control spine while leaving executors, LLM adapters, alternate skill providers, and UI front doors outside the bundle. diff --git a/packages/core/agent-core/README.md b/packages/core/agent-core/README.md index 7551473976..9ed5b3666e 100644 --- a/packages/core/agent-core/README.md +++ b/packages/core/agent-core/README.md @@ -14,12 +14,12 @@ This is the package to read to see **the whole plugin tree at once** — the tea @deepseek-ai/dsh-session event-sourced session log + store @deepseek-ai/dsh-system-prompt prompt-section + tool-schema assembly @deepseek-ai/dsh-tools tool registry + tools/pre-execute/post-execute -@deepseek-ai/dsh-skill skill provider registry + prompt listing +@deepseek-ai/dsh-skill skill provider registry @deepseek-ai/dsh-skill-local local filesystem skill provider @deepseek-ai/dsh-agent agent registry + agent/* event vocabulary @deepseek-ai/dsh-invariants dev-mode event-contract assertions @deepseek-ai/dsh-tool-bash the model-facing bash/bash_output/bash_kill schemas -@deepseek-ai/dsh-tool-skill the model-facing skill loader schema +@deepseek-ai/dsh-tool-skill session-prefix skill catalog + model-facing loader schema @deepseek-ai/dsh-agent-loop THE concrete loop (gets the forwarded `agents`) (dsh-system-prompt gets the forwarded `persona`) ``` @@ -43,7 +43,7 @@ import type { Config } from '@deepseek-ai/dsh-agent-core' // so validation and defaulting can never drift from the owners. ``` -The bundle FORWARDS each field to the child that owns it: `agents` to `agent-loop` (default `[]`), so each app supplies its own pre-created agents — a stdio app pre-creates a `main`; the ACP app pre-creates none (it creates agents on demand at `session/new`) — `persona` to `dsh-system-prompt` (default `''`), the deployment's persona section; `toolOrder` to `dsh-system-prompt` (absent — lexicographic), the explicit model-facing tool order; and `skills.registry` / `skills.local` to the skill registry and local provider. Forwarding is exactly why the owners can live in the shared spine even though the apps disagree on what to configure. +The bundle FORWARDS each field to the child that owns it: `agents` to `agent-loop` (default `[]`), so each app supplies its own pre-created agents — a stdio app pre-creates a `main`; the ACP app pre-creates none (it creates agents on demand at `session/new`) — `persona` to `dsh-system-prompt` (default `''`), the deployment's persona section; `toolOrder` to `dsh-system-prompt` (absent — lexicographic), the explicit model-facing tool order; and `skills.registry`, `skills.local`, and `skills.tool` to the skill registry, local provider, and model-facing consumer. Forwarding is exactly why the owners can live in the shared spine even though the apps disagree on what to configure. ## Why a code bundle, not a shared YAML include diff --git a/packages/core/agent-core/src/index.ts b/packages/core/agent-core/src/index.ts index 950fcc21d4..54756d08cb 100644 --- a/packages/core/agent-core/src/index.ts +++ b/packages/core/agent-core/src/index.ts @@ -62,12 +62,14 @@ import AgentLoop, { type Config as AgentLoopConfig } from '@deepseek-ai/dsh-agen export const name = 'agent-core' -/** Skill bundle config forwarded to the registry and the local provider. */ +/** Skill bundle config forwarded to the registry, local provider, and model-facing consumer. */ export interface SkillConfig { - /** Registry-level prompt/cache settings. */ + /** Registry-level discovery cache settings. */ registry?: SkillRegistryConfig /** Local filesystem skill provider settings. */ local?: SkillLocal.Config + /** Model-facing skill catalog and tool settings. */ + tool?: toolSkill.Config } /** @@ -75,7 +77,7 @@ export interface SkillConfig { * `agents` to the agent loop (an app that pre-creates no agents, like the ACP * bridge, simply omits it), `persona` and `toolOrder` to the system-prompt * plugin (the deployment's persona section and the explicit model-facing tool - * order), and `skills` to the skill registry/local provider. Every field is + * order), and `skills` to the skill registry/local provider/tool consumer. Every field is * optional INPUT here because each owner's schema supplies the default (`[]` / * `''` / absent — lexicographic / the DSH skill roots); the schema is the * INTERSECTION of the owners' own schemas, so validation and defaulting can @@ -88,7 +90,7 @@ export interface Config { persona?: SystemPromptConfig['persona'] /** The explicit model-facing tool order (see dsh-system-prompt's `Config`). */ toolOrder?: SystemPromptConfig['toolOrder'] - /** Skill registry and local provider config. */ + /** Skill registry, local provider, and model-facing consumer config. */ skills?: SkillConfig } @@ -96,6 +98,7 @@ export interface Config { export const SkillConfigSchema: z = z.object({ registry: SkillService.Config, local: SkillLocal.Config, + tool: toolSkill.Config, }) /** Intersect the owners' schemas so validation + defaulting stay identical. */ @@ -134,6 +137,6 @@ export function apply(ctx: Context, config: Config): void { ctx.plugin(AgentRegistry) ctx.plugin(invariants) ctx.plugin(toolBash) - ctx.plugin(toolSkill) + ctx.plugin(toolSkill, config.skills?.tool ?? {}) ctx.plugin(AgentLoop, { agents: config.agents ?? [] }) } diff --git a/packages/core/agent-core/tests/agent-core.spec.ts b/packages/core/agent-core/tests/agent-core.spec.ts index b1e02f3fc6..fb1bc7e1bd 100644 --- a/packages/core/agent-core/tests/agent-core.spec.ts +++ b/packages/core/agent-core/tests/agent-core.spec.ts @@ -7,6 +7,15 @@ import Loader from '@cordisjs/plugin-loader' import { TOOL_ORDER_REST } from '@deepseek-ai/dsh-system-prompt' import * as agentCore from '../src/index.ts' import { AgentId } from '@deepseek-ai/dsh-agent' +import type { Message } from '@deepseek-ai/dsh-llm' + +async function composePrefix(ctx: Context, cwd: string): Promise { + const empty: Message[] = [] + return await ctx.waterfall( + 'agent/session-prefix', { session: { header: { cwd } } } as never, + empty, new AbortController().signal, () => Promise.resolve(empty), + ) +} /** * Unit coverage for the @deepseek-ai/dsh-agent-core bundle: mounting it brings @@ -120,7 +129,7 @@ describe('dsh-agent-core bundle', () => { await ctx.fiber.dispose() }) - it('forwards skill config to the registry and local provider', async () => { + it('forwards skill config to the registry, local provider, and model-facing consumer', async () => { const home = await mkdtemp(join(tmpdir(), 'dsh-agent-core-skill-home-')) const agentsHome = await mkdtemp(join(tmpdir(), 'dsh-agent-core-skill-agents-')) const custom = await mkdtemp(join(tmpdir(), 'dsh-agent-core-skill-custom-')) @@ -129,16 +138,17 @@ describe('dsh-agent-core bundle', () => { const ctx = await mount({ agents: [], skills: { - registry: { promptFieldMaxLength: 6 }, + registry: { collectCacheMaxEntries: 4 }, local: { dshHome: join(home, '.dsh'), agentsHome: join(agentsHome, '.agents'), customSkillDirs: [custom], }, + tool: { catalogDescriptionMaxLength: 6 }, }, }) expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['custom-skill']) - expect(await ctx.skills.renderModelListing()).toContain('description: Cus...') + expect(JSON.stringify(await composePrefix(ctx, '/tmp'))).toContain('- `custom-skill`: Cus...') await ctx.fiber.dispose() }) diff --git a/packages/core/agent-core/tsconfig.json b/packages/core/agent-core/tsconfig.json index 394ecf1fc3..4fd0a81e97 100644 --- a/packages/core/agent-core/tsconfig.json +++ b/packages/core/agent-core/tsconfig.json @@ -33,13 +33,13 @@ "path": "../../core/tools" }, { - "path": "../../core/skill" + "path": "../../skill/skill" }, { - "path": "../../core/skill-local" + "path": "../../skill/skill-local" }, { - "path": "../../core/tool-skill" + "path": "../../skill/tool-skill" }, { "path": "../../core/agent" diff --git a/packages/core/skill/README.md b/packages/core/skill/README.md deleted file mode 100644 index 3e1b7ee460..0000000000 --- a/packages/core/skill/README.md +++ /dev/null @@ -1,38 +0,0 @@ -# @deepseek-ai/dsh-skill - -Agent skill provider registry and model-facing skill guidance. - -This package owns the `ctx.skills` interface. It does not know whether skills come from local files, embedded plugin data, HTTP, or another backend; providers register those sources with `ctx.skills.registerProvider(...)`. The shipped local implementation is [`@deepseek-ai/dsh-skill-local`](../skill-local). - -## Service: `SkillService` (ctx key: `skills`) - -### Public API - -- `ctx.skills.registerProvider(provider): () => void` Registers a provider by unique `provider.name`. Duplicate provider names throw, and `runtime` is reserved for `ctx.skills.register(...)`. The registration is effect-scoped and HMR-safe. -- `ctx.skills.list({ cwd? })` Returns model-invocable skill summaries for the current workspace, merged across providers. -- `ctx.skills.get(name, { cwd? })` Returns the full winning skill, including disabled-for-model skills. -- `ctx.skills.register(skill): () => void` Registers a runtime embedded skill. Same-name runtime registrations are first-wins: a duplicate logs a warning and gets a no-op disposer. -- `ctx.skills.renderModelListing({ cwd? })` Renders the request-time `## Skills` catalog. - -### Config - -| Field | Default | Meaning | -|---|---|---| -| `promptFieldMaxLength` | `500` | Maximum rendered `description` / `whenToUse` length in the prompt listing; must be at least `3` because truncated fields reserve `...`. | -| `collectCacheMaxEntries` | `128` | Maximum cwd/provider discovery promises kept in memory. | - -## Provider Contract - -A provider returns `SkillCandidate[]` from `list(options)` and later receives the winning candidate back in `get(candidate, options)`. The candidate's `locator` is opaque to the registry, so a local provider can store a file path while a future HTTP provider can store a URL, id, or version token. - -The registry validates candidate names, descriptions, ranks, and provider ownership. Candidate contract violations fail fast because the provider plugin is malformed; a provider `list()` rejection is treated as a transient source failure, logged, skipped for that request, and not cached. Duplicate skill names are resolved first-wins by `rank`, provider registration order, then the provider's own local order. The final model-visible summary list is sorted by skill `name` for deterministic prompt text and provider prefix-cache friendliness. - -## Runtime Skills - -`ctx.skills.register(...)` is a convenience for embedded runtime skills. Runtime skills use rank `250`: project providers can override them, while they override the shipped local provider's custom and user roots. Runtime registration is also first-wins within runtime contributions, so a duplicate contribution cannot remove the active one through its disposer. - -## Prompt Integration - -The service listens on `system-prompt/assemble` and appends a short `## Skills` section to the calling agent's assembled system prompt. The listing contains only stable routing metadata (`name`, `source`, `description`, and optional `whenToUse`), not skill bodies or absolute local paths. `description` and `whenToUse` are whitespace-normalized, capped, XML-escaped, and have `{{` / `}}` delimiters split so provider text cannot trip prompt-variable interpolation. Models load full instructions through the `skill` tool. - -The prompt-injection surface is intentionally separate from provider loading: changing where skills come from means adding or swapping providers, not changing prompt assembly or the `skill` tool. diff --git a/packages/core/tool-skill/README.md b/packages/core/tool-skill/README.md deleted file mode 100644 index 07e3c5beee..0000000000 --- a/packages/core/tool-skill/README.md +++ /dev/null @@ -1,15 +0,0 @@ -# @deepseek-ai/dsh-tool-skill - -The model-facing `skill` tool for loading full skill instructions. - -Requires `ctx.tools` and `ctx.skills` (`inject: ['tools', 'skills']`). - -## Tool: `skill` - -| Arg | Type | Notes | -|---|---|---| -| `name` | string (required) | Exact kebab-case skill name from the available skills listing. | - -Execution uses the calling agent's `session.header.cwd` so workspace-sensitive providers can resolve the right winning skill. A successful call returns a text block containing ``, the skill body, and provider resource guidance. Local filesystem skills include a base directory for resolving relative files; remote or embedded providers can return URL or opaque provider-managed guidance instead. Unknown names, invalid names, and skills marked `disableModelInvocation: true` return `isError` tool results through the normal tool registry error path. - -The tool does not call `agent.inject()` in v1. Its result is already recorded as the tool result and becomes available to the next model step without duplicating the content as synthetic context. diff --git a/packages/core/tool-skill/src/index.ts b/packages/core/tool-skill/src/index.ts deleted file mode 100644 index d234e2742b..0000000000 --- a/packages/core/tool-skill/src/index.ts +++ /dev/null @@ -1,73 +0,0 @@ -/** - * Model-facing `skill` tool. - * - * @module @deepseek-ai/dsh-tool-skill - */ - -import type { Context } from 'cordis' -import { defineTool } from '@deepseek-ai/dsh-tools' -import { assertNever } from '@deepseek-ai/dsh-llm' -import { isSkillName, type SkillDefinition } from '@deepseek-ai/dsh-skill' - -export const name = 'tool-skill' -export const inject = ['tools', 'skills'] - -export function apply(ctx: Context): void { - const skillTool = defineTool({ - name: 'skill', - description: 'Load the full instructions for one available skill by name. Use this when the current task matches a skill listed in the system prompt.', - parameters: { - name: { type: 'string', required: true, description: 'The exact skill name from the available skills list.' }, - }, - async execute(args, exec) { - if (!isSkillName(args.name)) { - throw new Error(`invalid skill name "${args.name}"`) - } - const skill = await ctx.skills.get(args.name, { cwd: exec.agent?.session.header.cwd }) - if (!skill) { - throw new Error(`unknown skill "${args.name}"`) - } - if (skill.disableModelInvocation === true) { - throw new Error(`skill "${args.name}" is not available for model invocation`) - } - return [{ type: 'text', text: renderSkillContent(skill) }] - }, - presentCall(args) { - return { card: 'generic', title: `Load skill ${args.name}`, kind: 'read', rawInput: args.name } - }, - }) - ctx.tools.register(skillTool) -} - -function renderSkillContent(skill: SkillDefinition): string { - const resourceHint = renderResourceHint(skill) - return [ - ``, - `# Skill: ${skill.name}`, - '', - skill.content, - '', - ...resourceHint, - '', - ].join('\n') -} - -function renderResourceHint(skill: SkillDefinition): string[] { - const base = skill.resourceBase - if (base === undefined) { - return [`Resources for this skill are managed by provider "${skill.provider}".`] - } - switch (base.kind) { - case 'directory': - return [ - `Base directory for this skill: ${base.path}`, - 'Resolve relative files mentioned by this skill against the base directory before using them.', - ] - case 'url': - return [`Base URL for this skill: ${base.url}`] - case 'opaque': - return [`Resources for this skill: ${base.description}`] - default: - return assertNever(base, 'SkillResourceBase.kind') - } -} diff --git a/packages/core/tool-skill/tests/tool-skill.spec.ts b/packages/core/tool-skill/tests/tool-skill.spec.ts deleted file mode 100644 index fe87f01462..0000000000 --- a/packages/core/tool-skill/tests/tool-skill.spec.ts +++ /dev/null @@ -1,149 +0,0 @@ -import { describe, expect, it } from 'vitest' -import { mkdir, writeFile } from 'node:fs/promises' -import { join } from 'node:path' -import { tmpdir } from 'node:os' -import { Context } from 'cordis' -import { CallId } from '@deepseek-ai/dsh-llm' -import SystemPrompt from '@deepseek-ai/dsh-system-prompt' -import ToolRegistry from '@deepseek-ai/dsh-tools' -import SkillService from '@deepseek-ai/dsh-skill' -import * as SkillLocal from '@deepseek-ai/dsh-skill-local' -import * as toolSkill from '@deepseek-ai/dsh-tool-skill' - -async function tempDir(name: string): Promise { - return await import('node:fs/promises').then(fs => fs.mkdtemp(join(tmpdir(), `dsh-${name}-`))) -} - -async function writeSkill(root: string, name: string, description: string, body: string): Promise { - const dir = join(root, name) - await mkdir(dir, { recursive: true }) - await writeFile(join(dir, 'SKILL.md'), `---\nname: ${name}\ndescription: ${description}\n---\n\n${body}\n`) -} - -async function setup(home: string): Promise { - const ctx = new Context() - await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) - await ctx.plugin(SkillService) - await ctx.plugin(SkillLocal, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) - await ctx.plugin(toolSkill) - return ctx -} - -describe('dsh-tool-skill', () => { - it('registers the skill tool schema and removes it on dispose', async () => { - const ctx = new Context() - await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) - const home = await tempDir('tool-schema') - await ctx.plugin(SkillService) - await ctx.plugin(SkillLocal, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) - - const fiber = await ctx.plugin(toolSkill) - expect(ctx.tools.schemas().map(tool => tool.name)).toEqual(['skill']) - expect(ctx.tools.get('skill')?.presentCall?.({ name: 'project-skill' })).toEqual({ - card: 'generic', - title: 'Load skill project-skill', - kind: 'read', - rawInput: 'project-skill', - }) - await fiber.dispose() - expect(ctx.tools.schemas()).toEqual([]) - }) - - it('loads a skill for the calling agent cwd', async () => { - const home = await tempDir('tool-load') - const project = await tempDir('tool-project') - await mkdir(join(project, '.git'), { recursive: true }) - await writeSkill(join(project, '.dsh/skills'), 'project-skill', 'Project skill', 'Project instructions.') - const ctx = await setup(home) - - const result = await ctx.tools.execute({ - callId: CallId('c1'), - name: 'skill', - arguments: { name: 'project-skill' }, - agent: { session: { header: { cwd: project } } } as never, - }) - - expect(result.isError).toBe(false) - const block = result.content[0] - expect(block?.type).toBe('text') - if (block?.type !== 'text') throw new Error('expected text skill result') - expect(block.text).toContain('') - expect(block.text).toContain('Project instructions.') - }) - - it('renders provider-managed resource hints for non-local skills', async () => { - const home = await tempDir('tool-resource-hints') - const ctx = await setup(home) - ctx.skills.register({ - name: 'opaque-skill', - description: 'Opaque skill', - source: 'runtime', - provider: 'runtime', - resourceBase: { kind: 'opaque', description: 'runtime memory' }, - content: 'Opaque instructions.', - }) - ctx.skills.register({ - name: 'url-skill', - description: 'URL skill', - source: 'runtime', - provider: 'runtime', - resourceBase: { kind: 'url', url: 'https://skills.example.test/url-skill' }, - content: 'URL instructions.', - }) - ctx.skills.register({ - name: 'provider-skill', - description: 'Provider skill', - source: 'runtime', - provider: 'runtime', - content: 'Provider instructions.', - }) - - const opaque = await ctx.tools.execute({ callId: CallId('c2'), name: 'skill', arguments: { name: 'opaque-skill' } }) - const url = await ctx.tools.execute({ callId: CallId('c3'), name: 'skill', arguments: { name: 'url-skill' } }) - const provider = await ctx.tools.execute({ callId: CallId('c4'), name: 'skill', arguments: { name: 'provider-skill' } }) - - if (opaque.content[0]?.type !== 'text' || url.content[0]?.type !== 'text' || provider.content[0]?.type !== 'text') { - throw new Error('expected text tool results') - } - expect(opaque.content[0].text).toContain('Resources for this skill: runtime memory') - expect(url.content[0].text).toContain('Base URL for this skill: https://skills.example.test/url-skill') - expect(provider.content[0].text).toContain('Resources for this skill are managed by provider "runtime"') - }) - - it('fails loud on an unknown resource base kind', async () => { - const home = await tempDir('tool-resource-assert-never') - const ctx = await setup(home) - ctx.skills.register({ - name: 'rogue-resource-skill', - description: 'Rogue resource skill', - source: 'runtime', - provider: 'runtime', - resourceBase: { kind: 'future' } as never, - content: 'Rogue instructions.', - }) - - const result = await ctx.tools.execute({ callId: CallId('c5'), name: 'skill', arguments: { name: 'rogue-resource-skill' } }) - - expect(result.isError).toBe(true) - const block = result.content[0] - if (block?.type !== 'text') throw new Error('expected text tool result') - expect(block.text).toContain('unreachable variant') - }) - - it('returns isError for unknown, invalid, and model-disabled skills', async () => { - const home = await tempDir('tool-errors') - await writeSkill(join(home, '.dsh/skills'), 'hidden-skill', 'Hidden skill', 'Hidden instructions.') - await writeFile(join(home, '.dsh/skills/hidden-skill/SKILL.md'), '---\nname: hidden-skill\ndescription: Hidden skill\ndisableModelInvocation: true\n---\n\nHidden instructions.\n') - const ctx = await setup(home) - - const unknown = await ctx.tools.execute({ callId: CallId('c1'), name: 'skill', arguments: { name: 'missing' } }) - const invalid = await ctx.tools.execute({ callId: CallId('c2'), name: 'skill', arguments: { name: 'Bad_Name' } }) - const disabled = await ctx.tools.execute({ callId: CallId('c3'), name: 'skill', arguments: { name: 'hidden-skill' } }) - - expect(unknown.isError).toBe(true) - expect(invalid.isError).toBe(true) - expect(disabled.isError).toBe(true) - }) -}) diff --git a/packages/skill/README.md b/packages/skill/README.md new file mode 100644 index 0000000000..447b82fc47 --- /dev/null +++ b/packages/skill/README.md @@ -0,0 +1,11 @@ +# skill/ - skill capability family + +The canonical three-package capability seam for reusable agent instructions: a provider registry, a local implementation, and the model-facing catalog/loader consumer. All are **product** packages. + +| Package | Role | ctx key | +|---|---|---| +| `skill/` | Provider registry, precedence resolution, stable catalog snapshots, and full-definition lookup | `ctx.skills` | +| `skill-local/` | Project/custom/user filesystem provider | (registers on `ctx.skills`) | +| `tool-skill/` | Session-prefix catalog and model-facing `skill` loader | (registers on `ctx.tools`) | + +The interface lives at `skill/skill/`. Providers register synchronously and perform asynchronous discovery through `ctx.skills`; `tool-skill` consumes only that interface, so an embedded or remote provider can replace or complement `skill-local` without changing the model-facing contract. `agent-core` loads this family by default, but it remains a capability outside the core control spine, parallel to [`bash/`](../bash/README.md), [`fs/`](../fs/README.md), [`web/`](../web/README.md), and [`subagent/`](../subagent/README.md). diff --git a/packages/core/skill-local/README.md b/packages/skill/skill-local/README.md similarity index 93% rename from packages/core/skill-local/README.md rename to packages/skill/skill-local/README.md index 5fedc92bc4..8f1b4f9e98 100644 --- a/packages/core/skill-local/README.md +++ b/packages/skill/skill-local/README.md @@ -2,7 +2,7 @@ Local filesystem provider for the `ctx.skills` registry. -This package implements one skill source. It scans local project, custom, and user skill roots, parses `SKILL.md` or flat Markdown skill files, and registers the provider on `ctx.skills`. The registry, prompt listing, and model-facing loader tool remain in `@deepseek-ai/dsh-skill` and `@deepseek-ai/dsh-tool-skill`. +This package implements one skill source. It scans local project, custom, and user skill roots, parses `SKILL.md` or flat Markdown skill files, and registers the provider on `ctx.skills`. The registry remains in `@deepseek-ai/dsh-skill`; the session-prefix catalog and model-facing loader tool remain in `@deepseek-ai/dsh-tool-skill`. ## Plugin diff --git a/packages/core/skill-local/package.json b/packages/skill/skill-local/package.json similarity index 100% rename from packages/core/skill-local/package.json rename to packages/skill/skill-local/package.json diff --git a/packages/core/skill-local/src/index.ts b/packages/skill/skill-local/src/index.ts similarity index 100% rename from packages/core/skill-local/src/index.ts rename to packages/skill/skill-local/src/index.ts diff --git a/packages/core/skill-local/tests/skill-local.spec.ts b/packages/skill/skill-local/tests/skill-local.spec.ts similarity index 100% rename from packages/core/skill-local/tests/skill-local.spec.ts rename to packages/skill/skill-local/tests/skill-local.spec.ts diff --git a/packages/core/skill-local/tsconfig.json b/packages/skill/skill-local/tsconfig.json similarity index 100% rename from packages/core/skill-local/tsconfig.json rename to packages/skill/skill-local/tsconfig.json diff --git a/packages/skill/skill/README.md b/packages/skill/skill/README.md new file mode 100644 index 0000000000..98f787dbc7 --- /dev/null +++ b/packages/skill/skill/README.md @@ -0,0 +1,34 @@ +# @deepseek-ai/dsh-skill + +Pure agent skill provider registry. + +This package owns the `ctx.skills` interface. It does not know whether skills come from local files, embedded plugin data, HTTP, or another backend; providers register those sources with `ctx.skills.registerProvider(...)`. The shipped local implementation is [`@deepseek-ai/dsh-skill-local`](../skill-local). + +## Service: `SkillService` (ctx key: `skills`) + +### Public API + +- `ctx.skills.registerProvider(provider): () => void` Registers a provider by unique `provider.name`. Duplicate provider names throw, and `runtime` is reserved for `ctx.skills.register(...)`. The registration is effect-scoped and HMR-safe. +- `ctx.skills.list({ cwd?, signal? })` Returns model-invocable skill summaries for the current workspace, merged across providers and sorted by name. +- `ctx.skills.get(name, { cwd?, signal? })` Returns the full winning skill, including disabled-for-model skills. +- `ctx.skills.register(skill): () => void` Registers a runtime embedded skill. Same-name runtime registrations are first-wins: a duplicate logs a warning and gets a no-op disposer. + +### Config + +| Field | Default | Meaning | +|---|---|---| +| `collectCacheMaxEntries` | `128` | Maximum completed cwd/provider catalog snapshots kept in memory. | + +## Provider Contract + +A provider registers synchronously from its `apply()` and returns `SkillCandidate[]` from `list(options)` when discovery is requested. Remote setup, authentication, and discovery belong in the awaited `list()` call rather than plugin registration. Providers should stop promptly when `options.signal` aborts; the registry also stops awaiting an uncooperative provider so agent cancellation cannot hang prefix composition. The provider later receives the winning candidate back in `get(candidate, options)`. The candidate's `locator` is opaque to the registry, so a local provider can store a file path while a remote provider can store a URL, id, or version token. + +The registry validates candidate names, descriptions, ranks, and provider ownership. Candidate contract violations fail fast because the provider plugin is malformed; a provider `list()` rejection is treated as a transient source failure, logged, skipped for that request, and not cached. Only completed catalogs are cached, and a provider/runtime revision change during discovery discards the stale result and retries. Duplicate skill names are resolved first-wins by `rank`, provider registration order, then the provider's own local order. The final summary list is sorted by skill `name` for deterministic consumers. + +## Runtime Skills + +`ctx.skills.register(...)` is a convenience for embedded runtime skills. Runtime skills use rank `250`: project providers can override them, while they override the shipped local provider's custom and user roots. Runtime registration is also first-wins within runtime contributions, so a duplicate contribution cannot remove the active one through its disposer. + +## Consumer boundary + +The registry does not render model guidance or register model-facing tools. [`@deepseek-ai/dsh-tool-skill`](../tool-skill) consumes `ctx.skills` to provide the session-prefix catalog and `skill` tool, so providers remain independent of the model surface. diff --git a/packages/core/skill/package.json b/packages/skill/skill/package.json similarity index 69% rename from packages/core/skill/package.json rename to packages/skill/skill/package.json index 82a43dd6a0..b303e16bed 100644 --- a/packages/core/skill/package.json +++ b/packages/skill/skill/package.json @@ -1,6 +1,6 @@ { "name": "@deepseek-ai/dsh-skill", - "description": "Agent skill provider registry and prompt listing for the DeepSeek Harness", + "description": "Agent skill provider registry for the DeepSeek Harness", "version": "0.0.1", "private": true, "type": "module", @@ -22,16 +22,12 @@ ], "license": "BSD-3-Clause", "peerDependencies": { - "@deepseek-ai/dsh-agent": "^0.0.1", - "@deepseek-ai/dsh-system-prompt": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "dependencies": { "schemastery": "^3.18.0" }, "devDependencies": { - "@deepseek-ai/dsh-agent": "workspace:^", - "@deepseek-ai/dsh-system-prompt": "workspace:^", "cordis": "^4.0.0-rc.6" } } diff --git a/packages/core/skill/src/index.ts b/packages/skill/skill/src/index.ts similarity index 74% rename from packages/core/skill/src/index.ts rename to packages/skill/skill/src/index.ts index b4e29cc758..50a8b5d0d0 100644 --- a/packages/core/skill/src/index.ts +++ b/packages/skill/skill/src/index.ts @@ -1,10 +1,10 @@ /** - * Agent skill registry and request-time catalog rendering. + * Agent skill provider registry. * * This package is the interface third of the skill capability seam. Concrete * providers such as `@deepseek-ai/dsh-skill-local` decide where skills come * from; this service only merges provider catalogs, resolves the winning skill - * for a name, and exposes the model-facing catalog/tool consumers use. + * for a name, and exposes the winning summaries and definitions to consumers. * * @module @deepseek-ai/dsh-skill */ @@ -12,15 +12,11 @@ import { Context, Service } from 'cordis' import z from 'schemastery' import type Schema from 'schemastery' -import type {} from '@deepseek-ai/dsh-system-prompt' -import type {} from '@deepseek-ai/dsh-agent' const SKILL_NAME = /^[a-z0-9]+(?:-[a-z0-9]+)*$/ -const DEFAULT_PROMPT_FIELD_LENGTH = 500 const DEFAULT_COLLECT_CACHE_ENTRIES = 128 const RUNTIME_PROVIDER = 'runtime' const RUNTIME_RANK = 250 -const SKILL_PROMPT_SECTION_ORDER = 1000 /** * Return whether a string is a valid kebab-case skill name. @@ -83,9 +79,11 @@ export interface SkillDefinition extends SkillSummary { /** Runtime skill contribution accepted by `ctx.skills.register()`. */ export type SkillRegistration = Omit & { provider?: string } -/** Workspace selector used for cwd-sensitive provider discovery. */ +/** Caller context used for cwd-sensitive and abortable provider work. */ export interface SkillLookupOptions { cwd?: string | undefined + /** Abort discovery or loading work for the current caller. */ + signal?: AbortSignal | undefined } /** Provider interface for one source of skills, such as local directories or a remote registry. */ @@ -93,15 +91,18 @@ export interface SkillProvider { /** Unique provider name in the `ctx.skills` registry. */ name: string /** - * List available skill candidates for the current lookup context. - * @param options - lookup options; `cwd` selects workspace-sensitive skills. + * List available skill candidates for the current lookup context. Provider + * plugins register synchronously during `apply()`; remote initialization, + * authentication, and discovery are awaited inside this method. Implementations + * should settle promptly when `options.signal` aborts. + * @param options - lookup options; `cwd` selects workspace-sensitive skills and `signal` cancels work. * @returns provider candidates with precedence ranks and opaque locators. */ list(options: SkillLookupOptions): Promise /** * Load a complete skill body for a previously listed candidate. * @param candidate - the winning candidate originally returned by this provider. - * @param options - lookup options; `cwd` selects workspace-sensitive skills. + * @param options - lookup options; `cwd` selects workspace-sensitive skills and `signal` cancels work. * @returns the full skill body, or `undefined` if it is no longer loadable. */ get(candidate: SkillCandidate, options: SkillLookupOptions): Promise @@ -109,9 +110,7 @@ export interface SkillProvider { /** Skill registry configuration. */ export interface Config { - /** Maximum rendered description/whenToUse length in the prompt listing; minimum 3. */ - promptFieldMaxLength?: number - /** Maximum number of cwd/provider discovery promises kept in the in-memory cache. */ + /** Maximum number of completed cwd/provider catalog snapshots kept in memory. */ collectCacheMaxEntries?: number } @@ -152,52 +151,35 @@ interface CollectResult { /** * Registry of skill providers. It merges provider catalogs with stable - * first-wins duplicate handling, exposes sorted model-visible summaries, loads - * full skill bodies on demand, and renders the request-time catalog fragment. + * first-wins duplicate handling, exposes sorted model-visible summaries, and + * loads full skill bodies on demand. */ export class SkillService extends Service { static Config: Schema = z.object({ - promptFieldMaxLength: z.number().default(DEFAULT_PROMPT_FIELD_LENGTH), collectCacheMaxEntries: z.number().default(DEFAULT_COLLECT_CACHE_ENTRIES), }) - private readonly promptFieldMaxLength: number private readonly collectCacheMaxEntries: number private readonly providers = new Map() private readonly runtime = new Map() - private readonly collectCache = new Map>() + private readonly collectCache = new Map() private providerRevision = 0 private nextProviderOrder = 0 private runtimeRevision = 0 constructor(ctx: Context, config: Config = {}) { super(ctx, 'skills') - this.promptFieldMaxLength = config.promptFieldMaxLength ?? DEFAULT_PROMPT_FIELD_LENGTH this.collectCacheMaxEntries = config.collectCacheMaxEntries ?? DEFAULT_COLLECT_CACHE_ENTRIES - assertPositiveInteger('promptFieldMaxLength', this.promptFieldMaxLength, 3) assertPositiveInteger('collectCacheMaxEntries', this.collectCacheMaxEntries) - - ctx.on('system-prompt/assemble', async (_assembly, context, next) => { - const result = await next() - const agent = context.agent - if (agent === undefined) return result - const listing = await this.renderModelListing({ cwd: agent.session.header.cwd }) - if (listing.length > 0) { - result.sections.push({ - name: 'skills:available', - order: SKILL_PROMPT_SECTION_ORDER, - text: listing, - }) - } - return result - }) } /** - * Register a skill provider. Throws if another provider already owns the same - * provider name, including the reserved runtime provider name. Effect-scoped - * and HMR-safe: disposing the caller's fiber unregisters the provider and - * invalidates cached catalogs. + * Register a skill provider synchronously during the provider plugin's + * `apply()`. Throws if another provider already owns the same provider name, + * including the reserved runtime provider name. Providers that need remote + * initialization do that work inside `list()` after registration. Effect- + * scoped and HMR-safe: disposing the caller's fiber unregisters the provider + * and invalidates cached catalogs. * @param provider - the provider to register by `provider.name`. * @returns a disposer that unregisters this provider. */ @@ -252,7 +234,7 @@ export class SkillService extends Service { /** * List model-invocable skill summaries for a workspace. - * @param options - lookup options; `cwd` selects the project roots to scan. + * @param options - lookup options; `cwd` selects project roots and `signal` cancels discovery. * @returns sorted summaries, excluding skills disabled for model invocation. */ async list(options: SkillLookupOptions = {}): Promise { @@ -260,13 +242,13 @@ export class SkillService extends Service { .map(entry => entry.candidate) .filter(skill => skill.disableModelInvocation !== true) .map(toSummary) - .sort(compareSummary) + .sort(compareSkillSummary) } /** * Load one full skill definition by name. * @param name - kebab-case skill name. - * @param options - lookup options; `cwd` selects workspace-sensitive skills. + * @param options - lookup options; `cwd` selects workspace-sensitive skills and `signal` cancels work. * @returns the full skill, including body content, or `undefined`. */ async get(name: string, options: SkillLookupOptions = {}): Promise { @@ -276,51 +258,27 @@ export class SkillService extends Service { return await match.provider.get(match.candidate, options) } - /** - * Render the request-time `## Skills` prompt fragment. - * @param options - lookup options; `cwd` selects workspace-sensitive skills. - * @returns an empty string when no model-invocable skills are available. - */ - async renderModelListing(options: SkillLookupOptions = {}): Promise { - const skills = await this.list(options) - if (skills.length === 0) return '' - const entries = skills.map((skill) => { - const lines = [ - ``, - `description: ${promptLine(skill.description, this.promptFieldMaxLength)}`, - ...skill.whenToUse ? [`whenToUse: ${promptLine(skill.whenToUse, this.promptFieldMaxLength)}`] : [], - '', - ] - return lines.join('\n') - }).join('\n') - return [ - '## Skills', - 'Available skills are listed below. Load a skill with the `skill` tool before following its instructions; do not infer or follow instructions from a skill body that has not been loaded.', - '', - entries, - '', - ].join('\n') - } - private async collect(options: SkillLookupOptions): Promise { - const key = collectCacheKey(options, this.providerRevision, this.runtimeRevision) - const cached = this.collectCache.get(key) - if (cached !== undefined) return cached + options.signal?.throwIfAborted() + while (true) { + const providerRevision = this.providerRevision + const runtimeRevision = this.runtimeRevision + const key = collectCacheKey(options, providerRevision, runtimeRevision) + const cached = this.collectCache.get(key) + if (cached !== undefined) return cached - const collected = this.collectFresh(options) - const cachedPromise = collected.then((result) => { - if (!result.cacheable) this.collectCache.delete(key) + const result = await this.collectFresh(options) + options.signal?.throwIfAborted() + if (providerRevision !== this.providerRevision || runtimeRevision !== this.runtimeRevision) continue + if (result.cacheable) { + this.collectCache.set(key, result.entries) + if (this.collectCache.size > this.collectCacheMaxEntries) { + const oldest = this.collectCache.keys().next() as IteratorYieldResult + this.collectCache.delete(oldest.value) + } + } return result.entries - }).catch((error: unknown) => { - this.collectCache.delete(key) - throw error - }) - this.collectCache.set(key, cachedPromise) - if (this.collectCache.size > this.collectCacheMaxEntries) { - const oldest = this.collectCache.keys().next() as IteratorYieldResult - this.collectCache.delete(oldest.value) } - return cachedPromise } private async collectFresh(options: SkillLookupOptions): Promise { @@ -341,10 +299,11 @@ export class SkillService extends Service { } private async listAllCandidates(options: SkillLookupOptions): Promise { + options.signal?.throwIfAborted() const candidates: IndexedCandidate[] = [] let cacheable = true let runtimeOrder = 0 - for (const skill of [...this.runtime.values()].sort((a, b) => a.name.localeCompare(b.name))) { + for (const skill of [...this.runtime.values()].sort((a, b) => compareCodePoints(a.name, b.name))) { candidates.push({ candidate: runtimeCandidate(skill), provider: RUNTIME_SKILL_PROVIDER, @@ -353,13 +312,16 @@ export class SkillService extends Service { }) runtimeOrder += 1 } - for (const { provider, order } of this.providers.values()) { + for (const { provider, order } of [...this.providers.values()]) { let localOrder = 0 - const listed = await provider.list(options).catch((error: unknown) => { + let listed: SkillCandidate[] | undefined + try { + listed = await waitWithAbort(provider.list(options), options.signal) + } catch (error) { + if (options.signal?.aborted === true) throw toError(options.signal.reason) cacheable = false this.ctx.logger.warn(`skill provider "${provider.name}" skipped: ${errorMessage(error)}`) - return undefined - }) + } if (listed === undefined) continue for (const candidate of listed) { validateCandidate(candidate, provider.name) @@ -436,8 +398,14 @@ function toSummary(skill: SkillDefinition | SkillCandidate): SkillSummary { } } -function compareSummary(left: SkillSummary, right: SkillSummary): number { - return left.name.localeCompare(right.name) +function compareSkillSummary(left: SkillSummary, right: SkillSummary): number { + return compareCodePoints(left.name, right.name) +} + +function compareCodePoints(left: string, right: string): number { + if (left < right) return -1 + if (left > right) return 1 + return 0 } function compareIndexedCandidates(left: IndexedCandidate, right: IndexedCandidate): number { @@ -446,36 +414,46 @@ function compareIndexedCandidates(left: IndexedCandidate, right: IndexedCandidat || left.localOrder - right.localOrder } -function promptLine(value: string, maxLength: number): string { - const normalized = value.replaceAll(/\s+/g, ' ').trim() - const truncated = normalized.length <= maxLength - ? normalized - : `${normalized.slice(0, maxLength - 3)}...` - return escapeText(breakPromptTemplateDelimiters(truncated)) -} - -function breakPromptTemplateDelimiters(value: string): string { - return value.replaceAll('{{', '{ {').replaceAll('}}', '} }') -} - function assertPositiveInteger(name: string, value: number, minimum = 1): void { if (!Number.isInteger(value) || value < minimum) { throw new Error(`skill: ${name} must be an integer greater than or equal to ${minimum}`) } } -function escapeAttr(value: string): string { - return value.replaceAll('&', '&').replaceAll('"', '"').replaceAll('<', '<') -} - -function escapeText(value: string): string { - return value.replaceAll('&', '&').replaceAll('<', '<').replaceAll('>', '>') -} - function collectCacheKey(options: SkillLookupOptions, providerRevision: number, runtimeRevision: number): string { return JSON.stringify({ cwd: options.cwd, providerRevision, runtimeRevision }) } +function waitWithAbort(promise: Promise, signal: AbortSignal | undefined): Promise { + if (signal === undefined) return promise + signal.throwIfAborted() + return new Promise((resolve, reject) => { + const cleanup = (): void => { + signal.removeEventListener('abort', onAbort) + } + const onAbort = (): void => { + cleanup() + reject(toError(signal.reason)) + } + signal.addEventListener('abort', onAbort, { once: true }) + void promise.then( + (value) => { + cleanup() + resolve(value) + }, + (error: unknown) => { + cleanup() + reject(toError(error)) + }, + ) + if (signal.aborted) onAbort() + }) +} + +function toError(error: unknown): Error { + return error instanceof Error ? error : new Error(String(error)) +} + function errorMessage(error: unknown): string { return String(error) } diff --git a/packages/core/skill/tests/skill.spec.ts b/packages/skill/skill/tests/skill.spec.ts similarity index 66% rename from packages/core/skill/tests/skill.spec.ts rename to packages/skill/skill/tests/skill.spec.ts index e51468674a..010d161039 100644 --- a/packages/core/skill/tests/skill.spec.ts +++ b/packages/skill/skill/tests/skill.spec.ts @@ -1,11 +1,6 @@ -import { describe, expect, it } from 'vitest' +import { describe, expect, it, vi } from 'vitest' import { Context } from 'cordis' import SkillService, { type SkillCandidate, type SkillDefinition, type SkillLookupOptions, type SkillProvider } from '@deepseek-ai/dsh-skill' -import SystemPrompt, { renderPrompt } from '@deepseek-ai/dsh-system-prompt' - -function agentForCwd(cwd: string): never { - return { session: { header: { cwd } } } as never -} function memorySkill(name: string, description: string, rank: number, body = `${name} body.`): SkillCandidate { return { @@ -113,6 +108,9 @@ describe('SkillService registry', () => { }) it('validates provider candidates and invalid registry caps', async () => { + const defaultedService = new SkillService(new Context()) + expect(await defaultedService.list()).toEqual([]) + const ctx = new Context() await ctx.plugin(SkillService) ctx.skills.registerProvider({ @@ -146,10 +144,33 @@ describe('SkillService registry', () => { await expect(invalid.skills.list()).rejects.toThrow('skill provider') } - await expect(new Context().plugin(SkillService, { promptFieldMaxLength: 2 })).rejects.toThrow('greater than or equal to 3') await expect(new Context().plugin(SkillService, { collectCacheMaxEntries: 1.5 })).rejects.toThrow('collectCacheMaxEntries') }) + it('sorts model-visible summaries without locale-sensitive collation', async () => { + const ctx = new Context() + await ctx.plugin(SkillService) + ctx.skills.registerProvider(new MemoryProvider([ + memorySkill('z-skill', 'Z skill', 10), + memorySkill('a-skill', 'A skill', 10), + ])) + const localeCompare = vi.spyOn(String.prototype, 'localeCompare') + const sort = vi.spyOn(Array.prototype, 'sort') + + try { + const skills = await ctx.skills.list() + expect(skills.map(skill => skill.name)).toEqual(['a-skill', 'z-skill']) + expect(localeCompare).not.toHaveBeenCalled() + + const summaryComparator = sort.mock.calls.at(-1)?.[0] + expect(summaryComparator).toBeTypeOf('function') + expect(summaryComparator?.(skills[0], skills[0])).toBe(0) + } finally { + sort.mockRestore() + localeCompare.mockRestore() + } + }) + it('caches provider discovery, skips failing providers, and invalidates on runtime skills', async () => { const ctx = new Context() await ctx.plugin(SkillService, { collectCacheMaxEntries: 1 }) @@ -203,43 +224,106 @@ describe('SkillService registry', () => { expect(flakyCalls).toBe(3) }) - it('renders stable prompt guidance and omits it when no skills exist', async () => { + it('abandons an in-flight catalog when provider registrations change', async () => { const ctx = new Context() - await ctx.plugin(SystemPrompt, { persona: 'base' }) - await ctx.plugin(SkillService, { promptFieldMaxLength: 6 }) - ctx.skills.registerProvider(new MemoryProvider([ - { - ...memorySkill('escaped-skill', 'Use safely', 10), - whenToUse: 'Handle & marker', + await ctx.plugin(SkillService) + let markStarted: (() => void) | undefined + let release: (() => void) | undefined + const started = new Promise((resolve) => { markStarted = resolve }) + const gate = new Promise((resolve) => { release = resolve }) + const dispose = ctx.skills.registerProvider({ + name: 'delayed', + async list() { + markStarted?.() + await gate + return [{ ...memorySkill('stale-skill', 'Stale', 10), provider: 'delayed' }] }, - ])) + async get(candidate) { + return { ...candidate, content: 'Stale body.' } + }, + }) - const listing = await ctx.skills.renderModelListing() - expect(listing).toContain('description: Use...') - expect(listing).toContain('whenToUse: Han...') - expect(listing).not.toContain('') - expect(renderPrompt(await ctx.systemPrompt.assemble({ agent: agentForCwd('/tmp') }))).toContain('## Skills') - expect(renderPrompt(await ctx.systemPrompt.assemble())).not.toContain('## Skills') + const pending = ctx.skills.list() + await started + dispose() + release?.() - const empty = new Context() - await empty.plugin(SystemPrompt, { persona: 'base' }) - await empty.plugin(SkillService) - expect(await empty.skills.renderModelListing()).toBe('') - expect(renderPrompt(await empty.systemPrompt.assemble({ agent: agentForCwd('/tmp') }))).not.toContain('## Skills') + expect(await pending).toEqual([]) + }) - const direct = new SkillService(new Context(), {}) - expect(await direct.renderModelListing()).toBe('') - const short = new Context() - await short.plugin(SkillService) - short.skills.registerProvider(new MemoryProvider([memorySkill('short-skill', 'Short', 10)])) - expect(await short.skills.renderModelListing()).toContain('description: Short') + it('stops waiting for discovery when its lookup signal aborts', async () => { + const ctx = new Context() + await ctx.plugin(SkillService) + let markStarted: (() => void) | undefined + let release: (() => void) | undefined + let seenSignal: AbortSignal | undefined + const started = new Promise((resolve) => { markStarted = resolve }) + const held = new Promise((resolve) => { + release = () => { resolve([]) } + }) + ctx.skills.registerProvider({ + name: 'uncooperative', + list(options) { + seenSignal = options.signal + markStarted?.() + return held + }, + async get() { + return undefined + }, + }) + const controller = new AbortController() + const reason = 'discovery cancelled' + const pending = ctx.skills.list({ signal: controller.signal }) + const outcome = pending.then( + () => 'resolved', + (error: unknown) => error instanceof Error && error.message === reason ? 'aborted' : 'other-error', + ) + await started + controller.abort(reason) - const templated = new Context() - await templated.plugin(SystemPrompt, { persona: 'base' }) - await templated.plugin(SkillService) - templated.skills.registerProvider(new MemoryProvider([memorySkill('templated-skill', 'Use {{placeholder}} safely', 10)])) - const prompt = renderPrompt(await templated.systemPrompt.assemble({ agent: agentForCwd('/tmp') })) - expect(prompt).toContain('description: Use { {placeholder} } safely') + const settled = await Promise.race([ + outcome, + new Promise<'timeout'>(resolve => setTimeout(() => { resolve('timeout') }, 25)), + ]) + release?.() + await pending.catch(() => undefined) + + expect(seenSignal).toBe(controller.signal) + expect(settled).toBe('aborted') + }) + + it('does not miss an abort racing listener installation', async () => { + const ctx = new Context() + await ctx.plugin(SkillService) + const reason = new Error('racing abort') + let aborted = false + const signal = { + get aborted() { + return aborted + }, + reason, + throwIfAborted() { + if (aborted) throw reason + }, + addEventListener(_type: string, listener: () => void) { + aborted = true + listener() + }, + removeEventListener() {}, + } as unknown as AbortSignal + ctx.skills.registerProvider({ + name: 'racing-abort', + list() { + return Promise.reject(new Error('late provider failure')) + }, + async get() { + return undefined + }, + }) + + await expect(ctx.skills.list({ signal })).rejects.toBe(reason) + await Promise.resolve() }) it('rejects invalid runtime skill registrations and ignores duplicates', async () => { diff --git a/packages/core/skill/tsconfig.json b/packages/skill/skill/tsconfig.json similarity index 69% rename from packages/core/skill/tsconfig.json rename to packages/skill/skill/tsconfig.json index df8e8f2f9c..1b1855dcc4 100644 --- a/packages/core/skill/tsconfig.json +++ b/packages/skill/skill/tsconfig.json @@ -8,8 +8,6 @@ "references": [ { "path": "../../../vendor/cosmokit" }, { "path": "../../../vendor/cordis" }, - { "path": "../../../vendor/schemastery" }, - { "path": "../agent" }, - { "path": "../system-prompt" } + { "path": "../../../vendor/schemastery" } ] } diff --git a/packages/skill/tool-skill/README.md b/packages/skill/tool-skill/README.md new file mode 100644 index 0000000000..c55bc3693d --- /dev/null +++ b/packages/skill/tool-skill/README.md @@ -0,0 +1,21 @@ +# @deepseek-ai/dsh-tool-skill + +The model-facing skill catalog and `skill` tool. + +Requires `ctx.tools` and `ctx.skills` (`inject: ['tools', 'skills']`). + +## Session-prefix catalog + +The plugin contributes one user-role `` catalog through `agent/session-prefix`. It resolves skills for the calling session's cwd, forwards the prefix abort signal to discovery, and lists only sorted `name` and `description` entries; skill bodies, paths, sources, providers, and `whenToUse` hints remain outside the catalog. The catalog is omitted when no model-invocable skills are available. + +`catalogDescriptionMaxLength` controls normalized, XML-escaped catalog descriptions. Its default is `500` and values must be integers of at least `3`, which reserves room for a truncation ellipsis. The [session-prefix RFC](../../../docs/rfc/implemented/feature/2026-07-07-session-prefix.md) defines the request-only, header-logged lifecycle of this message. + +## Tool: `skill` + +| Arg | Type | Notes | +|---|---|---| +| `name` | string (required) | Exact kebab-case skill name from the available skills listing. | + +Execution uses the calling agent's `session.header.cwd` so workspace-sensitive providers can resolve the right winning skill. A successful call returns one text tool result with ``, containing `` followed by ``. Resource guidance resolves paths or URLs explicitly referenced by the loaded instructions against `resourceBase`; referenced scripts, references, and assets load only when needed, and the tool does not enumerate a skill directory. Local filesystem skills provide a base directory, while remote or embedded providers can provide a URL or opaque provider-managed guidance. A name that cannot be resolved reports that the skill is unknown or no longer available; invalid names and skills marked `disableModelInvocation: true` retain distinct `isError` results. + +The tool does not call `agent.inject()` in v1. Its result is already recorded as the tool result and becomes available to the next model step without duplicating the content as synthetic context. diff --git a/packages/core/tool-skill/package.json b/packages/skill/tool-skill/package.json similarity index 95% rename from packages/core/tool-skill/package.json rename to packages/skill/tool-skill/package.json index 91d49479b2..f0d97eb3d8 100644 --- a/packages/core/tool-skill/package.json +++ b/packages/skill/tool-skill/package.json @@ -28,6 +28,9 @@ "@deepseek-ai/dsh-tools": "^0.0.1", "cordis": "^4.0.0-rc.6" }, + "dependencies": { + "schemastery": "^3.18.0" + }, "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", diff --git a/packages/skill/tool-skill/src/index.ts b/packages/skill/tool-skill/src/index.ts new file mode 100644 index 0000000000..dc3232a13f --- /dev/null +++ b/packages/skill/tool-skill/src/index.ts @@ -0,0 +1,152 @@ +/** + * Session-prefix skill catalog and model-facing `skill` loader tool. + * + * @module @deepseek-ai/dsh-tool-skill + */ + +import type { Context } from 'cordis' +import z from 'schemastery' +import { defineTool } from '@deepseek-ai/dsh-tools' +import { assertNever, type Message } from '@deepseek-ai/dsh-llm' +import { isSkillName, type SkillDefinition, type SkillSummary } from '@deepseek-ai/dsh-skill' + +export const name = 'tool-skill' +export const inject = ['tools', 'skills'] + +const DEFAULT_CATALOG_DESCRIPTION_MAX_LENGTH = 500 + +/** Model-facing skill catalog configuration. */ +export interface Config { + /** Maximum normalized description length rendered in the session catalog; minimum 3. */ + catalogDescriptionMaxLength?: number +} + +/** Validate and default the model-facing skill catalog configuration. */ +export const Config: z = z.object({ + catalogDescriptionMaxLength: z.number().default(DEFAULT_CATALOG_DESCRIPTION_MAX_LENGTH), +}) + +/** Register the session-prefix skill catalog and the model-facing skill loader. */ +export function apply(ctx: Context, config: Config = {}): void { + const catalogDescriptionMaxLength = config.catalogDescriptionMaxLength ?? DEFAULT_CATALOG_DESCRIPTION_MAX_LENGTH + assertPositiveInteger('catalogDescriptionMaxLength', catalogDescriptionMaxLength, 3) + + ctx.on('agent/session-prefix', async (agent, _prefix, signal, next): Promise => { + const skills = await ctx.skills.list({ cwd: agent.session.header.cwd, signal }) + const rest = await next() + if (skills.length === 0) return rest + return [renderCatalogMessage(skills, catalogDescriptionMaxLength), ...rest] + }) + + const skillTool = defineTool({ + name: 'skill', + description: 'Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill.', + parameters: { + name: { type: 'string', required: true, description: 'The exact skill name from the available skills list.' }, + }, + async execute(args, exec) { + if (!isSkillName(args.name)) { + throw new Error(`invalid skill name "${args.name}"`) + } + const skill = await ctx.skills.get(args.name, { cwd: exec.agent?.session.header.cwd, signal: exec.signal }) + if (!skill) { + throw new Error(`skill "${args.name}" is unknown or no longer available`) + } + if (skill.disableModelInvocation === true) { + throw new Error(`skill "${args.name}" is not available for model invocation`) + } + return [{ type: 'text', text: renderSkillContent(skill) }] + }, + presentCall(args) { + return { card: 'generic', title: `Load skill ${args.name}`, kind: 'read', rawInput: args.name } + }, + }) + ctx.tools.register(skillTool) +} + +function renderSkillContent(skill: SkillDefinition): string { + const resourceHint = renderResourceHint(skill) + return [ + ``, + '', + ...resourceHint, + '', + '', + '', + skill.content, + '', + '', + ].join('\n') +} + +function renderResourceHint(skill: SkillDefinition): string[] { + const base = skill.resourceBase + if (base === undefined) { + return [ + `Resources for this skill are managed by provider "${escapeText(skill.provider)}".`, + 'Load referenced resources only as needed.', + ] + } + switch (base.kind) { + case 'directory': + return [ + `Base directory for this skill: ${escapeText(base.path)}`, + 'Resolve relative paths mentioned by this skill against the base directory before using them. Load referenced resources only as needed.', + ] + case 'url': + return [ + `Base URL for this skill: ${escapeText(base.url)}`, + 'Resolve relative URLs mentioned by this skill against the base URL before using them. Load referenced resources only as needed.', + ] + case 'opaque': + return [ + `Resources for this skill: ${escapeText(base.description)}`, + 'Load referenced resources only as needed.', + ] + default: + return assertNever(base, 'SkillResourceBase.kind') + } +} + +function renderCatalogMessage(skills: SkillSummary[], descriptionMaxLength: number): Message { + const entries = skills.map(skill => `- \`${skill.name}\`: ${catalogDescription(skill.description, descriptionMaxLength)}`) + return { + role: 'user', + content: [{ + type: 'text', + text: [ + '', + 'A skill is a reusable set of task-specific instructions. The following skills are available in this session:', + '', + '', + ...entries, + '', + '', + "If the user names a skill, or the task clearly matches a skill's description, call the `skill` tool with the exact skill name before taking task actions. Load all applicable skills, then follow their full instructions. This catalog contains summaries only; do not infer or follow a skill's instructions until it has been loaded.", + '', + ].join('\n'), + }], + } +} + +function catalogDescription(value: string, maxLength: number): string { + const normalized = value.replaceAll(/\s+/g, ' ').trim() + const truncated = normalized.length <= maxLength + ? normalized + : `${normalized.slice(0, maxLength - 3)}...` + return escapeText(truncated) +} + +function assertPositiveInteger(name: string, value: number, minimum = 1): void { + if (!Number.isInteger(value) || value < minimum) { + throw new Error(`tool-skill: ${name} must be an integer greater than or equal to ${minimum}`) + } +} + +function escapeAttr(value: string): string { + return value.replaceAll('&', '&').replaceAll('"', '"').replaceAll('<', '<') +} + +function escapeText(value: string): string { + return value.replaceAll('&', '&').replaceAll('<', '<').replaceAll('>', '>') +} diff --git a/packages/skill/tool-skill/tests/tool-skill.spec.ts b/packages/skill/tool-skill/tests/tool-skill.spec.ts new file mode 100644 index 0000000000..c7b843258c --- /dev/null +++ b/packages/skill/tool-skill/tests/tool-skill.spec.ts @@ -0,0 +1,275 @@ +import { describe, expect, it } from 'vitest' +import { mkdir, writeFile } from 'node:fs/promises' +import { join } from 'node:path' +import { tmpdir } from 'node:os' +import { Context } from 'cordis' +import { CallId, type Message } from '@deepseek-ai/dsh-llm' +import SystemPrompt, { renderPrompt } from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import SkillService from '@deepseek-ai/dsh-skill' +import * as SkillLocal from '@deepseek-ai/dsh-skill-local' +import * as toolSkill from '@deepseek-ai/dsh-tool-skill' + +async function tempDir(name: string): Promise { + return await import('node:fs/promises').then(fs => fs.mkdtemp(join(tmpdir(), `dsh-${name}-`))) +} + +async function writeSkill(root: string, name: string, description: string, body: string): Promise { + const dir = join(root, name) + await mkdir(dir, { recursive: true }) + await writeFile(join(dir, 'SKILL.md'), `---\nname: ${name}\ndescription: ${description}\n---\n\n${body}\n`) +} + +async function setup(home: string, config: toolSkill.Config = {}): Promise { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(SkillService) + await ctx.plugin(SkillLocal, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) + await ctx.plugin(toolSkill, config) + return ctx +} + +function agentForCwd(cwd: string): never { + return { session: { header: { cwd } } } as never +} + +async function composePrefix(ctx: Context, cwd: string, signal = new AbortController().signal): Promise { + const empty: Message[] = [] + return await ctx.waterfall( + 'agent/session-prefix', agentForCwd(cwd), empty, signal, + () => Promise.resolve(empty), + ) +} + +describe('dsh-tool-skill', () => { + it('registers the skill tool schema and removes it on dispose', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + const home = await tempDir('tool-schema') + await ctx.plugin(SkillService) + await ctx.plugin(SkillLocal, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) + ctx.skills.register({ name: 'lifecycle-skill', description: 'Lifecycle', source: 'runtime', content: 'body' }) + + const fiber = await ctx.plugin(toolSkill) + expect(ctx.tools.schemas().map(tool => tool.name)).toEqual(['skill']) + expect(await composePrefix(ctx, '/workspace')).toHaveLength(1) + expect(ctx.tools.get('skill')?.presentCall?.({ name: 'project-skill' })).toEqual({ + card: 'generic', + title: 'Load skill project-skill', + kind: 'read', + rawInput: 'project-skill', + }) + await fiber.dispose() + expect(ctx.tools.schemas()).toEqual([]) + expect(await composePrefix(ctx, '/workspace')).toEqual([]) + + toolSkill.apply(ctx) + expect(ctx.tools.schemas().map(tool => tool.name)).toEqual(['skill']) + }) + + it('forwards the session-prefix abort signal to skill discovery', async () => { + const home = await tempDir('tool-prefix-signal') + const ctx = await setup(home) + let seenSignal: AbortSignal | undefined + ctx.skills.registerProvider({ + name: 'signal-probe', + async list(options) { + seenSignal = options.signal + return [] + }, + async get() { + return undefined + }, + }) + const controller = new AbortController() + + await composePrefix(ctx, '/workspace', controller.signal) + + expect(seenSignal).toBe(controller.signal) + }) + + it('contributes a stable name-and-description catalog through the session prefix', async () => { + const home = await tempDir('tool-catalog') + const ctx = await setup(home, { catalogDescriptionMaxLength: 50 }) + ctx.skills.register({ + name: 'z-skill', + description: 'Long description '.repeat(5), + whenToUse: 'Never render this routing hint.', + source: 'secret-source', + provider: 'runtime', + resourceBase: { kind: 'directory', path: '/secret/path' }, + content: 'Secret body.', + }) + ctx.skills.register({ + name: 'a-skill', + description: 'Use {{placeholder}} & carefully.', + source: 'runtime', + provider: 'runtime', + content: 'A body.', + }) + ctx.on('agent/session-prefix', async (_agent, _prefix, _signal, next): Promise => [ + { role: 'user', content: [{ type: 'text', text: 'later contribution' }] }, + ...await next(), + ]) + + const prefix = await composePrefix(ctx, '/workspace') + + expect(prefix).toEqual([ + { + role: 'user', + content: [{ + type: 'text', + text: [ + '', + 'A skill is a reusable set of task-specific instructions. The following skills are available in this session:', + '', + '', + '- `a-skill`: Use {{placeholder}} <safely> & carefully.', + '- `z-skill`: Long description Long description Long descript...', + '', + '', + "If the user names a skill, or the task clearly matches a skill's description, call the `skill` tool with the exact skill name before taking task actions. Load all applicable skills, then follow their full instructions. This catalog contains summaries only; do not infer or follow a skill's instructions until it has been loaded.", + '', + ].join('\n'), + }], + }, + { role: 'user', content: [{ type: 'text', text: 'later contribution' }] }, + ]) + const rendered = JSON.stringify(prefix[0]) + expect(rendered).not.toContain('whenToUse') + expect(rendered).not.toContain('secret-source') + expect(rendered).not.toContain('/secret/path') + expect(rendered).not.toContain('Secret body') + expect(renderPrompt(await ctx.systemPrompt.assemble({ agent: agentForCwd('/workspace') }))).not.toContain('') + }) + + it('does not contribute a session-prefix message when no skills are available', async () => { + const home = await tempDir('tool-empty-catalog') + const ctx = await setup(home) + + expect(await composePrefix(ctx, '/workspace')).toEqual([]) + }) + + it('validates the catalog description cap', async () => { + const home = await tempDir('tool-invalid-catalog-cap') + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(SkillService) + await ctx.plugin(SkillLocal, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) + + await expect(ctx.plugin(toolSkill, { catalogDescriptionMaxLength: 2 })).rejects.toThrow('greater than or equal to 3') + }) + + it('loads a skill for the calling agent cwd', async () => { + const home = await tempDir('tool-load') + const project = await tempDir('tool-project') + await mkdir(join(project, '.git'), { recursive: true }) + await writeSkill(join(project, '.dsh/skills'), 'project-skill', 'Project skill', 'Project instructions.') + const ctx = await setup(home) + + const result = await ctx.tools.execute({ + callId: CallId('c1'), + name: 'skill', + arguments: { name: 'project-skill' }, + agent: { session: { header: { cwd: project } } } as never, + }) + + expect(result.isError).toBe(false) + const block = result.content[0] + expect(block?.type).toBe('text') + if (block?.type !== 'text') throw new Error('expected text skill result') + expect(block.text).toBe([ + '', + '', + `Base directory for this skill: ${join(project, '.dsh/skills/project-skill')}`, + 'Resolve relative paths mentioned by this skill against the base directory before using them. Load referenced resources only as needed.', + '', + '', + '', + 'Project instructions.', + '', + '', + ].join('\n')) + expect(block.text).not.toContain('# Skill:') + }) + + it('renders provider-managed resource hints for non-local skills', async () => { + const home = await tempDir('tool-resource-hints') + const ctx = await setup(home) + ctx.skills.register({ + name: 'opaque-skill', + description: 'Opaque skill', + source: 'runtime', + provider: 'runtime', + resourceBase: { kind: 'opaque', description: 'runtime memory' }, + content: 'Opaque instructions.', + }) + ctx.skills.register({ + name: 'url-skill', + description: 'URL skill', + source: 'runtime', + provider: 'runtime', + resourceBase: { kind: 'url', url: 'https://skills.example.test/url-skill' }, + content: 'URL instructions.', + }) + ctx.skills.register({ + name: 'provider-skill', + description: 'Provider skill', + source: 'runtime', + provider: 'runtime', + content: 'Provider instructions.', + }) + + const opaque = await ctx.tools.execute({ callId: CallId('c2'), name: 'skill', arguments: { name: 'opaque-skill' } }) + const url = await ctx.tools.execute({ callId: CallId('c3'), name: 'skill', arguments: { name: 'url-skill' } }) + const provider = await ctx.tools.execute({ callId: CallId('c4'), name: 'skill', arguments: { name: 'provider-skill' } }) + + if (opaque.content[0]?.type !== 'text' || url.content[0]?.type !== 'text' || provider.content[0]?.type !== 'text') { + throw new Error('expected text tool results') + } + expect(opaque.content[0].text).toContain('\nResources for this skill: runtime memory\nLoad referenced resources only as needed.\n') + expect(url.content[0].text).toContain('\nBase URL for this skill: https://skills.example.test/url-skill\nResolve relative URLs mentioned by this skill against the base URL before using them. Load referenced resources only as needed.\n') + expect(provider.content[0].text).toContain('\nResources for this skill are managed by provider "runtime".\nLoad referenced resources only as needed.\n') + }) + + it('fails loud on an unknown resource base kind', async () => { + const home = await tempDir('tool-resource-assert-never') + const ctx = await setup(home) + ctx.skills.register({ + name: 'rogue-resource-skill', + description: 'Rogue resource skill', + source: 'runtime', + provider: 'runtime', + resourceBase: { kind: 'future' } as never, + content: 'Rogue instructions.', + }) + + const result = await ctx.tools.execute({ callId: CallId('c5'), name: 'skill', arguments: { name: 'rogue-resource-skill' } }) + + expect(result.isError).toBe(true) + const block = result.content[0] + if (block?.type !== 'text') throw new Error('expected text tool result') + expect(block.text).toContain('unreachable variant') + }) + + it('returns isError for unknown, invalid, and model-disabled skills', async () => { + const home = await tempDir('tool-errors') + await writeSkill(join(home, '.dsh/skills'), 'hidden-skill', 'Hidden skill', 'Hidden instructions.') + await writeFile(join(home, '.dsh/skills/hidden-skill/SKILL.md'), '---\nname: hidden-skill\ndescription: Hidden skill\ndisableModelInvocation: true\n---\n\nHidden instructions.\n') + const ctx = await setup(home) + + const unknown = await ctx.tools.execute({ callId: CallId('c1'), name: 'skill', arguments: { name: 'missing' } }) + const invalid = await ctx.tools.execute({ callId: CallId('c2'), name: 'skill', arguments: { name: 'Bad_Name' } }) + const disabled = await ctx.tools.execute({ callId: CallId('c3'), name: 'skill', arguments: { name: 'hidden-skill' } }) + + expect(unknown.isError).toBe(true) + expect(invalid.isError).toBe(true) + expect(disabled.isError).toBe(true) + const unknownBlock = unknown.content[0] + if (unknownBlock?.type !== 'text') throw new Error('expected text tool result') + expect(unknownBlock.text).toContain('skill "missing" is unknown or no longer available') + }) +}) diff --git a/packages/core/tool-skill/tsconfig.json b/packages/skill/tool-skill/tsconfig.json similarity index 72% rename from packages/core/tool-skill/tsconfig.json rename to packages/skill/tool-skill/tsconfig.json index d36e8a449c..039fc641c0 100644 --- a/packages/core/tool-skill/tsconfig.json +++ b/packages/skill/tool-skill/tsconfig.json @@ -8,9 +8,10 @@ "references": [ { "path": "../../../vendor/cosmokit" }, { "path": "../../../vendor/cordis" }, + { "path": "../../../vendor/schemastery" }, { "path": "../../llm/llm" }, - { "path": "../agent" }, + { "path": "../../core/agent" }, { "path": "../skill" }, - { "path": "../tools" } + { "path": "../../core/tools" } ] } diff --git a/packages/ui/acp-agent/src/index.ts b/packages/ui/acp-agent/src/index.ts index 623b04acc8..8766b916cf 100644 --- a/packages/ui/acp-agent/src/index.ts +++ b/packages/ui/acp-agent/src/index.ts @@ -56,7 +56,7 @@ export interface Config { toolOrder?: string[] /** Directory the JSONL session backend writes under. Defaults to `./.sessions`. */ persistenceRoot?: string - /** Skill registry/local-provider config forwarded to the shared agent-core spine. */ + /** Skill registry, local-provider, and model-facing consumer config forwarded to agent-core. */ skills?: agentCore.SkillConfig } diff --git a/packages/ui/acp-agent/tests/acp-agent.spec.ts b/packages/ui/acp-agent/tests/acp-agent.spec.ts index ac05cd6de3..47cc399dfc 100644 --- a/packages/ui/acp-agent/tests/acp-agent.spec.ts +++ b/packages/ui/acp-agent/tests/acp-agent.spec.ts @@ -5,6 +5,7 @@ import { tmpdir } from 'node:os' import { Context } from 'cordis' import Loader from '@cordisjs/plugin-loader' import { TOOL_ORDER_REST } from '@deepseek-ai/dsh-system-prompt' +import type { Message } from '@deepseek-ai/dsh-llm' import * as acpAgent from '../src/index.ts' /** @@ -26,9 +27,20 @@ async function mount(config: acpAgent.Config): Promise { return ctx } -async function isolatedSkillsConfig(): Promise> { +async function isolatedSkillsConfig(catalogDescriptionMaxLength?: number): Promise> { const home = await mkdtemp(join(tmpdir(), 'dsh-acp-agent-skills-')) - return { local: { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') } } + return { + local: { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }, + ...catalogDescriptionMaxLength !== undefined ? { tool: { catalogDescriptionMaxLength } } : {}, + } +} + +async function composePrefix(ctx: Context): Promise { + const empty: Message[] = [] + return await ctx.waterfall( + 'agent/session-prefix', { session: { header: { cwd: '/tmp' } } } as never, + empty, new AbortController().signal, () => Promise.resolve(empty), + ) } async function withIsolatedSkillHomes(run: () => Promise): Promise { @@ -92,8 +104,9 @@ describe('dsh-acp-agent composition', () => { }) it('forwards skill config into agent-core', async () => { - const ctx = await mount({ model: 'mock', persona: 'hi', skills: await isolatedSkillsConfig() }) - expect(await ctx.skills.list()).toEqual([]) + const ctx = await mount({ model: 'mock', persona: 'hi', skills: await isolatedSkillsConfig(6) }) + ctx.skills.register({ name: 'acp-skill', description: 'ACP skill', source: 'runtime', content: 'body' }) + expect(JSON.stringify(await composePrefix(ctx))).toContain('- `acp-skill`: ACP...') await ctx.fiber.dispose() }) diff --git a/packages/ui/stdio-agent/src/index.ts b/packages/ui/stdio-agent/src/index.ts index 28b04ee6c0..c16c684fb2 100644 --- a/packages/ui/stdio-agent/src/index.ts +++ b/packages/ui/stdio-agent/src/index.ts @@ -72,7 +72,7 @@ export interface Config { persistenceRoot?: string /** stdin-chat banner printed once on start. Defaults to `'ready.'`. */ welcome?: string - /** Skill registry/local-provider config forwarded to the shared agent-core spine. */ + /** Skill registry, local-provider, and model-facing consumer config forwarded to agent-core. */ skills?: agentCore.SkillConfig /** * If set, the `main` agent RESUMES this persisted session id instead of diff --git a/packages/ui/stdio-agent/tests/stdio-agent.spec.ts b/packages/ui/stdio-agent/tests/stdio-agent.spec.ts index 9954881849..c08115526f 100644 --- a/packages/ui/stdio-agent/tests/stdio-agent.spec.ts +++ b/packages/ui/stdio-agent/tests/stdio-agent.spec.ts @@ -5,6 +5,7 @@ import { tmpdir } from 'node:os' import { Context } from 'cordis' import Loader from '@cordisjs/plugin-loader' import { AgentId } from '@deepseek-ai/dsh-agent' +import type { Message } from '@deepseek-ai/dsh-llm' import { TOOL_ORDER_REST } from '@deepseek-ai/dsh-system-prompt' import * as stdioAgent from '../src/index.ts' @@ -33,9 +34,20 @@ async function mount(config: stdioAgent.Config): Promise { return ctx } -async function isolatedSkillsConfig(): Promise> { +async function isolatedSkillsConfig(catalogDescriptionMaxLength?: number): Promise> { const home = await mkdtemp(join(tmpdir(), 'dsh-stdio-agent-skills-')) - return { local: { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') } } + return { + local: { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }, + ...catalogDescriptionMaxLength !== undefined ? { tool: { catalogDescriptionMaxLength } } : {}, + } +} + +async function composePrefix(ctx: Context): Promise { + const empty: Message[] = [] + return await ctx.waterfall( + 'agent/session-prefix', { session: { header: { cwd: '/tmp' } } } as never, + empty, new AbortController().signal, () => Promise.resolve(empty), + ) } async function withIsolatedSkillHomes(run: () => Promise): Promise { @@ -117,8 +129,9 @@ describe('dsh-stdio-agent app', () => { }) it('forwards skill config into agent-core', async () => { - const ctx = await mount({ model: 'mock', persona: 'hi', skills: await isolatedSkillsConfig() }) - expect(await ctx.skills.list()).toEqual([]) + const ctx = await mount({ model: 'mock', persona: 'hi', skills: await isolatedSkillsConfig(6) }) + ctx.skills.register({ name: 'stdio-skill', description: 'Stdio skill', source: 'runtime', content: 'body' }) + expect(JSON.stringify(await composePrefix(ctx))).toContain('- `stdio-skill`: Std...') await ctx.fiber.dispose() }) diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 615a514f52..2abf1fe6e2 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -269,10 +269,10 @@ importers: version: link:../session '@deepseek-ai/dsh-skill': specifier: workspace:^ - version: link:../skill + version: link:../../skill/skill '@deepseek-ai/dsh-skill-local': specifier: workspace:^ - version: link:../skill-local + version: link:../../skill/skill-local '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../system-prompt @@ -281,7 +281,7 @@ importers: version: link:../../bash/tool-bash '@deepseek-ai/dsh-tool-skill': specifier: workspace:^ - version: link:../tool-skill + version: link:../../skill/tool-skill '@deepseek-ai/dsh-tools': specifier: workspace:^ version: link:../tools @@ -335,41 +335,6 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) - packages/core/skill: - dependencies: - schemastery: - specifier: ^3.18.0 - version: 3.18.0 - devDependencies: - '@deepseek-ai/dsh-agent': - specifier: workspace:^ - version: link:../agent - '@deepseek-ai/dsh-system-prompt': - specifier: workspace:^ - version: link:../system-prompt - cordis: - specifier: ^4.0.0-rc.6 - version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) - - packages/core/skill-local: - dependencies: - schemastery: - specifier: ^3.18.0 - version: 3.18.0 - yaml: - specifier: ^2.4.2 - version: 2.9.0 - devDependencies: - '@deepseek-ai/dsh-fs': - specifier: workspace:^ - version: link:../../fs/fs - '@deepseek-ai/dsh-skill': - specifier: workspace:^ - version: link:../skill - cordis: - specifier: ^4.0.0-rc.6 - version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) - packages/core/system-prompt: dependencies: schemastery: @@ -383,27 +348,6 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) - packages/core/tool-skill: - devDependencies: - '@deepseek-ai/dsh-agent': - specifier: workspace:^ - version: link:../agent - '@deepseek-ai/dsh-llm': - specifier: workspace:^ - version: link:../../llm/llm - '@deepseek-ai/dsh-skill': - specifier: workspace:^ - version: link:../skill - '@deepseek-ai/dsh-skill-local': - specifier: workspace:^ - version: link:../skill-local - '@deepseek-ai/dsh-tools': - specifier: workspace:^ - version: link:../tools - cordis: - specifier: ^4.0.0-rc.6 - version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) - packages/core/tools: devDependencies: '@deepseek-ai/dsh-agent': @@ -419,18 +363,6 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) - packages/ui/user-interaction: - devDependencies: - '@deepseek-ai/dsh-agent': - specifier: workspace:^ - version: link:../../core/agent - '@deepseek-ai/dsh-llm': - specifier: workspace:^ - version: link:../../llm/llm - cordis: - specifier: ^4.0.0-rc.6 - version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) - packages/fs/fs: devDependencies: '@deepseek-ai/dsh-brand': @@ -713,6 +645,60 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/skill/skill: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + + packages/skill/skill-local: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + yaml: + specifier: ^2.4.2 + version: 2.9.0 + devDependencies: + '@deepseek-ai/dsh-fs': + specifier: workspace:^ + version: link:../../fs/fs + '@deepseek-ai/dsh-skill': + specifier: workspace:^ + version: link:../skill + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + + packages/skill/tool-skill: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../../core/agent + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + '@deepseek-ai/dsh-skill': + specifier: workspace:^ + version: link:../skill + '@deepseek-ai/dsh-skill-local': + specifier: workspace:^ + version: link:../skill-local + '@deepseek-ai/dsh-tools': + specifier: workspace:^ + version: link:../../core/tools + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/subagent/subagent: devDependencies: '@deepseek-ai/dsh-agent': @@ -1188,6 +1174,18 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/ui/user-interaction: + devDependencies: + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../../core/agent + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/util/brand: devDependencies: cordis: diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index f07f744e55..0bfe85983f 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -71,6 +71,7 @@ const GROUP_ORDER = [ 'core', 'bash', 'fs', + 'skill', 'compact', 'subagent', 'web', @@ -138,9 +139,10 @@ const SERVICE_ROLES: ServiceRole[] = [ key: 'skills', pkg: 'skill', title: 'Skill provider registry', - mode: 'core', - consumers: ['agent-core', 'skill-local', 'tool-skill'], - note: 'Merges provider skill catalogs, injects request-time listings, and serves full skill bodies to the skill tool.', + mode: 'seam', + implementations: ['skill-local'], + consumers: ['tool-skill'], + note: 'Merges provider skill catalogs; tool-skill renders the session-prefix catalog and loads complete skill bodies.', }, { key: 'agents', diff --git a/scripts/gen-module-graph.ts b/scripts/gen-module-graph.ts index dc66dc843e..54dbcf2773 100644 --- a/scripts/gen-module-graph.ts +++ b/scripts/gen-module-graph.ts @@ -42,6 +42,7 @@ const GROUP_ORDER = [ 'core', 'bash', 'fs', + 'skill', 'compact', 'subagent', 'web', diff --git a/scripts/gen-tool-catalog.ts b/scripts/gen-tool-catalog.ts index a388d9f9c6..d40cc9ddd4 100644 --- a/scripts/gen-tool-catalog.ts +++ b/scripts/gen-tool-catalog.ts @@ -163,7 +163,7 @@ const TOOL_PACKAGES: ToolPackage[] = [ { pkg: '@deepseek-ai/dsh-tool-skill', dir: 'tool-skill', - source: 'packages/core/tool-skill/src/index.ts', + source: 'packages/skill/tool-skill/src/index.ts', requires: ['ctx.tools', 'ctx.skills'], writes: ['tool/call', 'tool/result'], async mount(ctx) { diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index 37b83e39ae..e6838d988f 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -83,15 +83,15 @@ { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FsPolicyExec", "source": "packages/fs/fs-policy/src/types.ts" }, { "doc": "docs/core-data-structures/filesystem.md", "symbol": "FileReadOutcome", "source": "packages/fs/tool-fs/src/read-render.ts" }, - { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillSource", "source": "packages/core/skill/src/index.ts" }, - { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillResourceBase", "source": "packages/core/skill/src/index.ts" }, - { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillSummary", "source": "packages/core/skill/src/index.ts" }, - { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillCandidate", "source": "packages/core/skill/src/index.ts" }, - { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillDefinition", "source": "packages/core/skill/src/index.ts" }, - { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillRegistration", "source": "packages/core/skill/src/index.ts" }, - { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillLookupOptions", "source": "packages/core/skill/src/index.ts" }, - { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillProvider", "source": "packages/core/skill/src/index.ts" }, - { "doc": "docs/core-data-structures/skills.md", "symbol": "Config", "source": "packages/core/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillSource", "source": "packages/skill/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillResourceBase", "source": "packages/skill/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillSummary", "source": "packages/skill/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillCandidate", "source": "packages/skill/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillDefinition", "source": "packages/skill/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillRegistration", "source": "packages/skill/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillLookupOptions", "source": "packages/skill/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "SkillProvider", "source": "packages/skill/skill/src/index.ts" }, + { "doc": "docs/core-data-structures/skills.md", "symbol": "Config", "source": "packages/skill/skill/src/index.ts" }, { "doc": "docs/core-data-structures/compaction.md", "symbol": "CompactionResult", "source": "packages/compact/compact/src/types.ts" }, diff --git a/tsconfig.base.json b/tsconfig.base.json index b4a4e116d8..53da7ff49f 100644 --- a/tsconfig.base.json +++ b/tsconfig.base.json @@ -45,6 +45,7 @@ "./packages/bash/*/src", "./packages/code-runtime/*/src", "./packages/fs/*/src", + "./packages/skill/*/src", "./packages/compact/*/src", "./packages/guard/*/src", "./packages/subagent/*/src", diff --git a/tsconfig.build.json b/tsconfig.build.json index 0797d830bb..43dd2a1e5b 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -21,9 +21,9 @@ { "path": "./packages/core/agent" }, { "path": "./packages/ui/user-interaction" }, { "path": "./packages/core/tools" }, - { "path": "./packages/core/skill" }, - { "path": "./packages/core/skill-local" }, - { "path": "./packages/core/tool-skill" }, + { "path": "./packages/skill/skill" }, + { "path": "./packages/skill/skill-local" }, + { "path": "./packages/skill/tool-skill" }, { "path": "./packages/ui/tool-ask-user" }, { "path": "./packages/core/agent-loop" }, { "path": "./packages/core/agent-core" }, diff --git a/tsconfig.json b/tsconfig.json index b5387199fb..2ffee88ab1 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -32,9 +32,9 @@ { "path": "./packages/core/agent" }, { "path": "./packages/ui/user-interaction" }, { "path": "./packages/core/tools" }, - { "path": "./packages/core/skill" }, - { "path": "./packages/core/skill-local" }, - { "path": "./packages/core/tool-skill" }, + { "path": "./packages/skill/skill" }, + { "path": "./packages/skill/skill-local" }, + { "path": "./packages/skill/tool-skill" }, { "path": "./packages/ui/tool-ask-user" }, { "path": "./packages/core/agent-loop" }, { "path": "./packages/core/agent-core" }, From b5b17a7f65a8581c16ab5af7980faba637679315 Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Fri, 10 Jul 2026 15:21:22 +0800 Subject: [PATCH 166/232] fix(ci): stabilize static and coverage gates --- .../tests/workflow-workerthread.spec.ts | 10 ++++-- scripts/run-gates.ts | 32 ++++++++++++------- 2 files changed, 29 insertions(+), 13 deletions(-) diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index ecaeed61f6..61e6709bb6 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -663,7 +663,10 @@ describe('dsh-workflow-workerthread', () => { `), parent, }) - await vi.waitFor(() => { expect(order.filter(entry => entry.startsWith('start:')).length).toBe(2) }) + await vi.waitFor( + () => { expect(order.filter(entry => entry.startsWith('start:')).length).toBe(2) }, + { timeout: 5_000 }, + ) const fast = provider.runs.find(run => (run.request.prompt[0] as { text?: string }).text === 'fast')! fast.settle(text('fast done')) handle.cancel('stop now') @@ -802,7 +805,10 @@ describe('dsh-workflow-workerthread', () => { `), parent, }) - await vi.waitFor(() => { expect(order.filter(entry => entry.startsWith('start:')).length).toBe(2) }) + await vi.waitFor( + () => { expect(order.filter(entry => entry.startsWith('start:')).length).toBe(2) }, + { timeout: 5_000 }, + ) const fast = provider.runs.find(run => (run.request.prompt[0] as { text?: string }).text === 'fast')! fast.settle(text('fast done')) const result = await handle.result diff --git a/scripts/run-gates.ts b/scripts/run-gates.ts index 9ee5a66ed6..ef1e07ea43 100644 --- a/scripts/run-gates.ts +++ b/scripts/run-gates.ts @@ -286,18 +286,28 @@ function demoSmokeGate(options: { needs?: string[] } = {}): Gate { ...dependencyOptions, verify: async (result) => { const output = result.stdout + result.stderr - if (!output.includes('[tool call] echo({"text":"ci smoke"})')) { - throw new Error('demo smoke did not show the echo tool call.') + const sessionsRoot = join(root, '.sessions') + try { + if (!output.includes('[tool call] echo({"text":"ci smoke"})')) { + throw new Error('demo smoke did not show the echo tool call.') + } + if (!output.includes('[tool result] ECHO: CI SMOKE')) { + throw new Error('demo smoke did not show the echo tool result.') + } + const buckets = await readdir(sessionsRoot, { withFileTypes: true }) + let found = false + for (const bucket of buckets) { + if (!bucket.isDirectory() || !bucket.name.startsWith('cwd-')) continue + const entries = await readdir(join(sessionsRoot, bucket.name)) + if (entries.some(entry => /^main-session-.+\.jsonl$/.test(entry))) { + found = true + break + } + } + if (!found) throw new Error('demo smoke did not create a main-session JSONL log in a cwd bucket.') + } finally { + await rm(sessionsRoot, { recursive: true, force: true }) } - if (!output.includes('[tool result] ECHO: CI SMOKE')) { - throw new Error('demo smoke did not show the echo tool result.') - } - const sessionDir = join(root, '.sessions', '_no-cwd') - const entries = await readdir(sessionDir) - if (!entries.some(entry => /^main-session-.+\.jsonl$/.test(entry))) { - throw new Error('demo smoke did not create a main-session JSONL log.') - } - await rm(join(root, '.sessions'), { recursive: true, force: true }) }, } } From ef35007d75223fe4ba69d20924d07b2713b3ffa2 Mon Sep 17 00:00:00 2001 From: kingwl Date: Thu, 9 Jul 2026 15:25:18 +0800 Subject: [PATCH 167/232] =?UTF-8?q?feat(approval):=20the=20approval=20seam?= =?UTF-8?q?=20=E2=80=94=20one-shot=20permission=20decisions=20over=20a=20w?= =?UTF-8?q?aterfall=20of=20answerers?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ctx.approval (dsh-approval): request() dispatches the approval/request waterfall and always resolves a closed outcome — allowed-once / rejected / cancelled / unavailable — never rejects; zero listeners fall through to fail-closed unavailable; abort settles cancelled and discards late answers; throwing or rogue answerers are contained as unavailable; every ask lands the log-only approval/asked / approval/decided audit pair. dsh-tools routes a pre-execute ask through the seam opportunistically (ctx.get) with three distinct deny reasons, keeping the historical ask→deny degrade when the seam is absent. The per-session policy tier, the ACP bridge answerer, and the sandbox escalation asker are staged follow-ups of the approval-seam RFC. --- .gitignore | 1 + docs/capability-seams.md | 5 + docs/config-catalog.md | 3 +- docs/cordis-catalog/events.md | 22 +- docs/cordis-catalog/services.md | 12 +- docs/event-producer-consumer.md | 9 +- docs/module-graph.md | 21 +- docs/persistence-catalog.md | 24 ++ docs/tool-execution-pipeline.md | 10 +- eslint.config.mjs | 1 + packages/README.md | 1 + packages/approval/README.md | 9 + packages/approval/approval/README.md | 11 + packages/approval/approval/package.json | 38 +++ packages/approval/approval/src/index.ts | 240 ++++++++++++++++++ .../approval/approval/tests/approval.spec.ts | 203 +++++++++++++++ packages/approval/approval/tsconfig.json | 36 +++ packages/core/tools/README.md | 6 +- packages/core/tools/package.json | 2 + packages/core/tools/src/index.ts | 67 +++-- packages/core/tools/tests/tools.spec.ts | 105 +++++++- packages/core/tools/tsconfig.json | 3 + pnpm-lock.yaml | 21 ++ scripts/gen-doc-graphs.ts | 19 +- tsconfig.base.json | 1 + tsconfig.build.json | 1 + tsconfig.json | 1 + 27 files changed, 830 insertions(+), 42 deletions(-) create mode 100644 packages/approval/README.md create mode 100644 packages/approval/approval/README.md create mode 100644 packages/approval/approval/package.json create mode 100644 packages/approval/approval/src/index.ts create mode 100644 packages/approval/approval/tests/approval.spec.ts create mode 100644 packages/approval/approval/tsconfig.json diff --git a/.gitignore b/.gitignore index df36ca9214..9c432a5273 100644 --- a/.gitignore +++ b/.gitignore @@ -19,3 +19,4 @@ tmp/ .DS_Store .idea mise.toml + diff --git a/docs/capability-seams.md b/docs/capability-seams.md index 1c24a2916e..c71c74003e 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -46,6 +46,8 @@ flowchart LR pkg_bash_local["bash-local"] pkg_hooks_claude["hooks-claude"] pkg_hooks_codex["hooks-codex"] + pkg_approval["approval"] + svc_approval["ctx.approval
Approval seam"] pkg_code_runtime["code-runtime"] svc_codeRuntime["ctx.codeRuntime
Code-execution seam"] pkg_code_runtime_worker["code-runtime-worker"] @@ -74,6 +76,7 @@ flowchart LR pkg_acp --> svc_userInteraction pkg_agent --> svc_agents pkg_agent_loop --> svc_agentLoop + pkg_approval --> svc_approval pkg_bash --> svc_bash pkg_bash_local --> svc_bash pkg_code_runtime --> svc_codeRuntime @@ -112,6 +115,7 @@ flowchart LR svc_agents --> pkg_invariants svc_agents --> pkg_stdio_agent svc_agents --> pkg_subagent_inprocess + svc_approval --> pkg_tools svc_bash --> pkg_hooks_claude svc_bash --> pkg_hooks_codex svc_bash --> pkg_tool_bash @@ -160,6 +164,7 @@ flowchart LR | `ctx.agents` | `core` | [`agent`](../packages/core/agent) | - | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp), [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`stdio-agent`](../packages/ui/stdio-agent), [`invariants`](../packages/support/invariants) | - | Owns live Agent handles and the create/resume factory seam. | | `ctx.agentLoop` | `bundle` | [`agent-loop`](../packages/core/agent-loop) | - | [`agent-core`](../packages/core/agent-core) | - | The one concrete loop plugin; extension packages depend on dsh-agent events and services, not on this package. | | `ctx.bash` | `seam` | [`bash`](../packages/bash/bash) | [`bash-local`](../packages/bash/bash-local) | [`tool-bash`](../packages/bash/tool-bash), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | - | The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors can replace bash-local. | +| `ctx.approval` | `seam` | [`approval`](../packages/approval/approval) | - | [`tools`](../packages/core/tools) | - | One-shot permission decisions dispatched over the `approval/request` waterfall; answerers are listeners (the ACP bridge for its own agents), absence fails closed to `unavailable`. | | `ctx.codeRuntime` | `seam` | [`code-runtime`](../packages/code-runtime/code-runtime) | [`code-runtime-worker`](../packages/code-runtime/code-runtime-worker) | [`tools`](../packages/core/tools) | - | Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the tool registry consumes it for Code Mode). | | `ctx.fs` | `seam` | [`fs`](../packages/fs/fs) | [`fs-local`](../packages/fs/fs-local) | [`tool-fs`](../packages/fs/tool-fs) | [`fs-policy`](../packages/fs/fs-policy) | tool-fs executes read/write/edit through ctx.fs; fs-policy contributes observed-state checks through the fs/* event gate. | | `ctx.compact` | `seam` | [`compact`](../packages/compact/compact) | [`compact-basic`](../packages/compact/compact-basic) | [`compact-basic`](../packages/compact/compact-basic) | - | The basic backend currently consumes the pre-step event directly; a model-facing compact tool remains deferred. | diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 3e06916f6b..7866a123f2 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -818,7 +818,7 @@ export interface Config { export type ToolPresentationMode = 'native' | 'code' | 'both' ``` -Source: [`packages/core/tools/src/index.ts:319`](../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:323`](../packages/core/tools/src/index.ts) ## `@deepseek-ai/dsh-web` @@ -966,6 +966,7 @@ Source: [`packages/workflow/workflow-workerthread/src/index.ts:69`](../packages/ These load from a `cordis.yml` entry with no `config:` block; they declare no config surface. - `@deepseek-ai/dsh-agent` ([`packages/core/agent/src/index.ts`](../packages/core/agent/src/index.ts)) +- `@deepseek-ai/dsh-approval` ([`packages/approval/approval/src/index.ts`](../packages/approval/approval/src/index.ts)) - `@deepseek-ai/dsh-fs-policy` ([`packages/fs/fs-policy/src/index.ts`](../packages/fs/fs-policy/src/index.ts)) - `@deepseek-ai/dsh-llm` ([`packages/llm/llm/src/index.ts`](../packages/llm/llm/src/index.ts)) - `@deepseek-ai/dsh-session` ([`packages/core/session/src/index.ts`](../packages/core/session/src/index.ts)) diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index a9dfb7e05c..ee35a7a586 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -163,6 +163,18 @@ Types: [Agent](../core-data-structures/core.md) Source: [`packages/core/agent/src/types.ts:464`](../../packages/core/agent/src/types.ts) +## `approval/*` + +### `approval/request` — waterfall + +Waterfall asking the composed answerers to decide one approval request. Dispatched only from ApprovalService.request — callers go through the service (which owns cancellation and the audit events), never through `ctx.waterfall` directly. A listener that can answer for this request's agent returns an outcome WITHOUT calling `next()` (the decision slot is single-occupancy, first listener to answer wins); a listener that does not recognize the agent MUST call `next()` so another answerer — or the fail-closed default `'unavailable'` — gets the question. Throwing is contained by the service and yields `'unavailable'`. + +```ts cordis-catalog +'approval/request'(this: ApprovalService, req: ApprovalRequest, next: () => Promise): Promise +``` + +Source: [`packages/approval/approval/src/index.ts:52`](../../packages/approval/approval/src/index.ts) + ## `fs/*` ### `fs/edit-intent` — waterfall @@ -323,7 +335,7 @@ A tool was registered or unregistered (the available tool set changed). 'tools/change'(): void ``` -Source: [`packages/core/tools/src/index.ts:132`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:135`](../../packages/core/tools/src/index.ts) ### `tools/execute` — waterfall @@ -335,7 +347,7 @@ Around-dispatch waterfall wrapping the registry's core tool dispatch, between th Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:111`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:114`](../../packages/core/tools/src/index.ts) ### `tools/post-execute` — waterfall @@ -347,11 +359,11 @@ Waterfall AFTER a tool runs — where hook plugins inspect the result and accept Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:127`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:130`](../../packages/core/tools/src/index.ts) ### `tools/pre-execute` — waterfall -Waterfall BEFORE a tool runs — the gate where sandbox, permission, and hook plugins allow or deny a call (Claude Code's `PreToolUse`). Listeners receive `(exec, next)`: call `next()` to delegate to the default (allow), or return a PreToolDecision without calling `next()` to short-circuit. A `deny` skips dispatch and yields an `isError` result; the tool body never runs. Input rewrite is deliberately NOT offered here (see PreToolDecision); `ask` degrades to deny until the permission system lands (`FIXME(permissions)`). +Waterfall BEFORE a tool runs — the gate where sandbox, permission, and hook plugins allow or deny a call (Claude Code's `PreToolUse`). Listeners receive `(exec, next)`: call `next()` to delegate to the default (allow), or return a PreToolDecision without calling `next()` to short-circuit. A `deny` skips dispatch and yields an `isError` result; the tool body never runs. Input rewrite is deliberately NOT offered here (see PreToolDecision); `ask` is serviced by the `ctx.approval` seam when one is mounted, and degrades to deny otherwise. ```ts cordis-catalog 'tools/pre-execute'(this: ToolRegistry, exec: ToolExecution, next: () => Promise): Promise @@ -359,7 +371,7 @@ Waterfall BEFORE a tool runs — the gate where sandbox, permission, and hook pl Types: [ToolExecution](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:91`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:94`](../../packages/core/tools/src/index.ts) ## `workflow/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 79902ba2fc..eb0fe8ffd1 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -40,6 +40,16 @@ Types: [Agent](../core-data-structures/core.md) Source: [`packages/core/agent/src/index.ts:117`](../../packages/core/agent/src/index.ts) +## `ctx.approval` — `ApprovalService` + +The `ctx.approval` service: dispatches ApprovalRequests to the `approval/request` waterfall and audits every ask/outcome pair to the requesting agent's session log. Stateless between requests — grants are returned to the caller, never stored here. + +```ts cordis-catalog +async request(req: ApprovalRequest): Promise +``` + +Source: [`packages/approval/approval/src/index.ts:168`](../../packages/approval/approval/src/index.ts) + ## `ctx.bash` — `BashExecutor` (abstract seam) Abstract bash execution service. Subclass, implement the abstract methods, and load the subclass as a plugin — it registers as `ctx.bash` (one implementation per context; loading a second throws, which is cordis' standard duplicate-service behavior). @@ -226,7 +236,7 @@ async execute(exec: ToolExecution): Promise Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:345`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:349`](../../packages/core/tools/src/index.ts) ## `ctx.userInteraction` — `UserInteractionService` diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index acbe700965..5b50b30cc2 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -19,6 +19,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `agent/status` | `emit` | [`packages/core/agent/src/types.ts:281`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:451`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | | `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:464`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `approval/request` | `waterfall` | [`packages/approval/approval/src/index.ts:52`](../packages/approval/approval/src/index.ts) | [`approval`](../packages/approval/approval) (`waterfall`) | - | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | @@ -32,10 +33,10 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:91`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:38`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | | `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:44`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | -| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:132`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | -| `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:111`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`timeout-policy`](../packages/timeout/timeout-policy) | -| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:127`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | -| `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:91`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:135`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | +| `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:114`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`timeout-policy`](../packages/timeout/timeout-policy) | +| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:130`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | +| `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:94`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `workflow/agent-end` | `emit` | [`packages/workflow/workflow/src/index.ts:96`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/agent-start` | `emit` | [`packages/workflow/workflow/src/index.ts:85`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/end` | `emit` | [`packages/workflow/workflow/src/index.ts:106`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | diff --git a/docs/module-graph.md b/docs/module-graph.md index 39678e16eb..6237fac953 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -88,6 +88,9 @@ flowchart TD pkg_tool_ask_user["tool-ask-user"] pkg_user_interaction["user-interaction"] end + subgraph group_approval["packages/approval"] + pkg_approval["approval"] + end subgraph group_code_runtime["packages/code-runtime"] pkg_code_runtime["code-runtime"] pkg_code_runtime_worker["code-runtime-worker"] @@ -131,11 +134,6 @@ flowchart TD pkg_session_persistence --> pkg_session pkg_llm_replay --> pkg_llm pkg_llm_replay --> pkg_session - pkg_tools --> pkg_agent - pkg_tools --> pkg_code_runtime - pkg_tools --> pkg_llm - pkg_tools --> pkg_session - pkg_tools --> pkg_system_prompt pkg_compact_basic --> pkg_agent pkg_compact_basic --> pkg_compact pkg_compact_basic --> pkg_llm @@ -149,9 +147,19 @@ flowchart TD pkg_invariants --> pkg_session pkg_user_interaction --> pkg_agent pkg_user_interaction --> pkg_llm + pkg_approval --> pkg_agent + pkg_approval --> pkg_brand + pkg_approval --> pkg_llm + pkg_approval --> pkg_session pkg_workflow --> pkg_agent pkg_workflow --> pkg_brand pkg_workflow --> pkg_llm + pkg_tools --> pkg_agent + pkg_tools --> pkg_approval + pkg_tools --> pkg_code_runtime + pkg_tools --> pkg_llm + pkg_tools --> pkg_session + pkg_tools --> pkg_system_prompt pkg_agent_loop --> pkg_agent pkg_agent_loop --> pkg_llm pkg_agent_loop --> pkg_session @@ -290,13 +298,14 @@ flowchart TD | [`hook-protocol`](../packages/hooks/hook-protocol) | `hooks` | [`bash`](../packages/bash/bash), [`session`](../packages/core/session) | | [`session-persistence`](../packages/session-persistence/session-persistence) | `session-persistence` | [`session`](../packages/core/session) | | [`llm-replay`](../packages/support/llm-replay) | `support` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | -| [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`code-runtime`](../packages/code-runtime/code-runtime), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`compact-basic`](../packages/compact/compact-basic) | `compact` | [`agent`](../packages/core/agent), [`compact`](../packages/compact/compact), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`invariants`](../packages/support/invariants) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`user-interaction`](../packages/ui/user-interaction) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm) | +| [`approval`](../packages/approval/approval) | `approval` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`workflow`](../packages/workflow/workflow) | `workflow` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | +| [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`approval`](../packages/approval/approval), [`code-runtime`](../packages/code-runtime/code-runtime), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`agent-loop`](../packages/core/agent-loop) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-fs`](../packages/fs/tool-fs) | `fs` | [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | diff --git a/docs/persistence-catalog.md b/docs/persistence-catalog.md index 917386af9b..5d8555e752 100644 --- a/docs/persistence-catalog.md +++ b/docs/persistence-catalog.md @@ -11,6 +11,30 @@ The on-disk envelope around every payload is `SessionEvent` — `type`, monotoni ## Events +### `approval/*` + +#### `approval/asked` — log-only + +An approval question was put to the answerer chain — log-only audit (like `hook/*`; NOT a surface event, carries no `surfaceOp`). `id` pairs it with the `approval/decided` that always follows; `toolName` is the tool the question is about, `callId` the exact tool call when the asker had one, `reason` the asker's human-readable explanation (e.g. a hook's permission-decision reason). + +```ts persistence-catalog +'approval/asked': { id: ApprovalRequestId; toolName: string; callId?: CallId; reason?: string } +``` + +Types: [CallId](core-data-structures/core.md) + +Source: [`packages/approval/approval/src/index.ts:66`](../packages/approval/approval/src/index.ts) + +#### `approval/decided` — log-only + +The outcome of a prior `approval/asked` (same `id`) — log-only audit. Exactly one per ask, appended when the outcome is known: a decision, a cancellation, or the fail-closed `'unavailable'`. + +```ts persistence-catalog +'approval/decided': { id: ApprovalRequestId; outcome: ApprovalOutcome } +``` + +Source: [`packages/approval/approval/src/index.ts:77`](../packages/approval/approval/src/index.ts) + ### `assistant/*` #### `assistant/chunk` — log-only diff --git a/docs/tool-execution-pipeline.md b/docs/tool-execution-pipeline.md index 09a863badc..28eee043c4 100644 --- a/docs/tool-execution-pipeline.md +++ b/docs/tool-execution-pipeline.md @@ -11,7 +11,8 @@ flowchart TD toolCall["Session event: tool/call
logged before execution"] presentCall["UI pending card
presentCall(args)"] pre["tools/pre-execute waterfall
hooks, permission, sandbox"] - denied["deny or ask
tool body skipped"] + denied["denied
tool body skipped"] + approval["ctx.approval one-shot prompt
absent or unanswerable: deny"] around["tools/execute waterfall
timeout, retry, metrics (around dispatch)"] toolBody["Registered tool execute() body"] fsGate["fs/write-intent or fs/edit-intent
tool-fs mutations only"] @@ -25,7 +26,10 @@ flowchart TD toolCall --> pre pre -->|allow| around around --> toolBody - pre -->|deny or ask| denied + pre -->|deny| denied + pre -->|ask| approval + approval -->|allowed-once| around + approval -->|rejected, cancelled, unavailable| denied denied --> post toolBody --> fsGate fsGate --> toolBody @@ -37,6 +41,6 @@ flowchart TD toolResult --> presentResult ``` -Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate; hook bridges and future permission prompts live on the generic pre/post tool waterfalls; and around-dispatch concerns like the tool-call timeout policy (`@deepseek-ai/dsh-timeout-policy`) wrap core dispatch on `tools/execute`. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service. Code Mode rides the same pipeline twice over: `run_code` is itself a registered tool body, and each tool call its program makes re-enters `ctx.tools.execute()` through BOTH waterfalls — serialized one at a time, logged as a `tool/code-dispatch` session event, with a deny surfacing to the program as a binding rejection (a sub-call's `additionalContext` is deliberately dropped — no safe outlet mid-run preserves call/result adjacency). +Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate; hook bridges and the approval seam's permission prompts live on the generic pre/post tool waterfalls; and around-dispatch concerns like the tool-call timeout policy (`@deepseek-ai/dsh-timeout-policy`) wrap core dispatch on `tools/execute`. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service. Maintenance mode: curated Mermaid flow; exact tool schemas and event signatures live in generated catalogs. diff --git a/eslint.config.mjs b/eslint.config.mjs index cbb696bccb..500f42f4de 100644 --- a/eslint.config.mjs +++ b/eslint.config.mjs @@ -22,6 +22,7 @@ export default tseslint.config( '**/lib/**', '**/node_modules/**', '**/.sessions/**', + '.claude/**', // harness-local state (worktrees, skills) — other checkouts, not this one's sources '**/.doc-typecheck-*/**', 'vendor/**', // vendored source keeps upstream style and idioms '**/*.js', diff --git a/packages/README.md b/packages/README.md index a656812253..8d1580b291 100644 --- a/packages/README.md +++ b/packages/README.md @@ -12,6 +12,7 @@ Packages are grouped by modular role at `packages///`. The group dir | [`llm/`](llm/README.md) | LLM capability family: the abstract service + provider adapters | Product — stable surface | | [`bash/`](bash/README.md) | Bash capability family: the executor seam, a local impl, and the model-facing tool | Product — stable surface | | [`code-runtime/`](code-runtime/README.md) | Code-execution capability family: the abstract runtime seam for model-written programs + a worker-thread backend | Product — stable surface | +| [`approval/`](approval/README.md) | One-shot permission decisions | Product — stable surface | | [`fs/`](fs/README.md) | Filesystem capability family: the abstract seam, a local impl, and the model-facing file tools | Product — stable surface | | [`compact/`](compact/README.md) | Compaction capability family: the abstract seam + a basic backend (tool deferred) | Product — stable surface | | [`subagent/`](subagent/README.md) | Subagent capability family: the provider-registry seam and the model-facing delegation tool | Product — stable surface | diff --git a/packages/approval/README.md b/packages/approval/README.md new file mode 100644 index 0000000000..3778e2012e --- /dev/null +++ b/packages/approval/README.md @@ -0,0 +1,9 @@ +# approval/ — approval family + +The asking half of permission handling: one seam through which the harness puts a one-shot question — "may this specific action proceed?" — to whatever answerers a deployment composes, with a closed outcome vocabulary and a fail-closed default. The full design: [the approval-seam RFC](../../docs/rfc/proposed/feature/2026-07-06-approval-seam.md). All **product** packages. + +| Package | Role | ctx key | +|---|---|---| +| `approval/` | The `ApprovalService` mechanism (waterfall dispatch, cancellation, audit events) + the vocabulary (`ApprovalRequest`, `ApprovalOutcome`, `ApprovalRequestId`) | `ctx.approval` | + +Answerers live with their owners, not here: tests answer with inline scripted listeners, and the ACP bridge answerer is the staged first real one. Consumer today: [`core/tools`](../core/tools/) routes `tools/pre-execute`'s `ask` through the seam (degrading to deny when it is not mounted). diff --git a/packages/approval/approval/README.md b/packages/approval/approval/README.md new file mode 100644 index 0000000000..0aaf245f2b --- /dev/null +++ b/packages/approval/approval/README.md @@ -0,0 +1,11 @@ +# @deepseek-ai/dsh-approval + +Approval seam. Owns the `ctx.approval` service ([`ApprovalService`](src/index.ts)) and the one-shot permission vocabulary the harness shares: `ApprovalRequest` (agent + tool identity + reason + abort signal), the closed `ApprovalOutcome` union (`allowed-once` / `rejected` / `cancelled` / `unavailable`), the `ApprovalRequestId` brand pairing the two log-only audit events (`approval/asked` / `approval/decided`), and the `approval/request` waterfall the answerers listen on. Depends only on cordis and the core vocabulary packages (agent, session, llm brand), never on any UI. + +The contract in one line: `ctx.approval.request(req)` puts exactly one question — "may this specific action proceed?" — to whatever answerers the deployment composed, and always resolves to an outcome, never rejects: an aborted signal yields `cancelled`, a throwing or missing answerer yields `unavailable`, and `allowed-once` is a grant for the single asked-about action, never a class of future ones. The one precondition: ask from inside an open turn — the audit pair is turn-enclosed by contract (the turn is the durable log's commit/replay boundary; a bare event between turns is crash-tail garbage on reload), so an idle ask throws before appending anything. + +The service is the mechanism, answerers are the policy. Answerers are `approval/request` waterfall listeners occupying a single decision slot: answer for an agent you own by returning an outcome without calling `next()`, or delegate an agent you don't recognize by calling `next()` — the chain's built-in default is `unavailable`, so a deployment with no answerer (headless, CI) fails closed with zero configuration. Registration order across sibling plugins is not load-order deterministic; compose one terminal answerer per deployment and use `prepend` listeners only for decide-or-delegate gates. + +One seam serves both ask paths of [the sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md): the `tools/pre-execute` `ask` decision (routed by [`@deepseek-ai/dsh-tools`](../../core/tools/) when this service is mounted; degrading to deny when it is not), and the sandbox post-denial escalated retry that RFC stages (the asker will live in the bash tool layer). The full design: [the approval-seam RFC](../../../docs/rfc/proposed/feature/2026-07-06-approval-seam.md). + +No answerer ships in this change — every ask fails closed to `unavailable` until one is composed (the ACP bridge answerer is the staged first one). The audit events are log-only session records — the model only ever sees the tool result the asker derives from the outcome. diff --git a/packages/approval/approval/package.json b/packages/approval/approval/package.json new file mode 100644 index 0000000000..6120e4d4e9 --- /dev/null +++ b/packages/approval/approval/package.json @@ -0,0 +1,38 @@ +{ + "name": "@deepseek-ai/dsh-approval", + "description": "Approval seam (ctx.approval) for the DeepSeek Harness: one-shot permission decisions dispatched to composed answerers over the approval/request waterfall, fail-closed by default", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-agent": "^0.0.1", + "@deepseek-ai/dsh-brand": "^0.0.1", + "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-session": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "devDependencies": { + "@deepseek-ai/dsh-agent": "workspace:^", + "@deepseek-ai/dsh-brand": "workspace:^", + "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-session": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/approval/approval/src/index.ts b/packages/approval/approval/src/index.ts new file mode 100644 index 0000000000..92b2a0b763 --- /dev/null +++ b/packages/approval/approval/src/index.ts @@ -0,0 +1,240 @@ +/** + * Approval seam: `ctx.approval` answers exactly one question — "may this + * specific action proceed?" — by dispatching the `approval/request` waterfall + * to whatever answerers the deployment composed (an ACP editor prompt, an + * auto-decide policy, a scripted test listener) and returning a closed + * {@link ApprovalOutcome}. With no answerer the waterfall falls through to the + * built-in default `'unavailable'`: absence of a UI can never grant anything. + * + * The service is the MECHANISM (dispatch, cancellation, audit); answerers are + * the POLICY. It serves both ask paths the sandbox RFC names — the + * `tools/pre-execute` `ask` decision today, and the sandbox post-denial + * escalation when that phase lands — so every asker shares one outcome + * vocabulary and one audit trail. Grants are one-shot by design: an + * `'allowed-once'` outcome authorizes the single action it was asked about, + * never a class of future actions. + * + * Every request lands two log-only session events on the requesting agent's + * log (`approval/asked` / `approval/decided`, paired by + * {@link ApprovalRequestId}) — an audit trail, deliberately NOT part of the + * model-visible transcript: the model only ever sees the tool result the + * caller derives from the outcome. + * + * @module @deepseek-ai/dsh-approval + */ + +import { randomUUID } from 'node:crypto' +import { Context, Service } from 'cordis' +import type { Branded } from '@deepseek-ai/dsh-brand' +import type { Agent } from '@deepseek-ai/dsh-agent' +import type { CallId } from '@deepseek-ai/dsh-llm' +import type {} from '@deepseek-ai/dsh-session' + +declare module 'cordis' { + interface Context { + approval: ApprovalService + } + + interface Events { + /** + * Waterfall asking the composed answerers to decide one approval request. + * Dispatched only from {@link ApprovalService.request} — callers go through + * the service (which owns cancellation and the audit events), never through + * `ctx.waterfall` directly. A listener that can answer for this request's + * agent returns an outcome WITHOUT calling `next()` (the decision slot is + * single-occupancy, first listener to answer wins); a listener that does + * not recognize the agent MUST call `next()` so another answerer — or the + * fail-closed default `'unavailable'` — gets the question. Throwing is + * contained by the service and yields `'unavailable'`. + * @param req - the pending decision (agent, tool identity, reason, signal). + * @mode waterfall + */ + 'approval/request'(this: ApprovalService, req: ApprovalRequest, next: () => Promise): Promise + } +} + +declare module '@deepseek-ai/dsh-session' { + interface SessionEventMap { + /** + * An approval question was put to the answerer chain — log-only audit + * (like `hook/*`; NOT a surface event, carries no `surfaceOp`). `id` pairs + * it with the `approval/decided` that always follows; `toolName` is the + * tool the question is about, `callId` the exact tool call when the asker + * had one, `reason` the asker's human-readable explanation (e.g. a hook's + * permission-decision reason). + */ + 'approval/asked': { + id: ApprovalRequestId + toolName: string + callId?: CallId + reason?: string + } + /** + * The outcome of a prior `approval/asked` (same `id`) — log-only audit. + * Exactly one per ask, appended when the outcome is known: a decision, a + * cancellation, or the fail-closed `'unavailable'`. + */ + 'approval/decided': { + id: ApprovalRequestId + outcome: ApprovalOutcome + } + } +} + +/** + * Pairs one `approval/asked` audit event with its `approval/decided`. + * Service-issued (one fresh id per {@link ApprovalService.request} call). + */ +export type ApprovalRequestId = Branded<'ApprovalRequestId'> + +/** + * Brand a string as an {@link ApprovalRequestId}. + * @param id - the raw id string to brand. + * @returns the same string carrying the brand. + */ +export function ApprovalRequestId(id: string): ApprovalRequestId { + return id as ApprovalRequestId +} + +/** + * The closed outcome vocabulary of one approval request. + * + * - `'allowed-once'` — a one-shot grant for exactly the asked-about action; + * consumed by proceeding, never a durable authorization. + * - `'rejected'` — an answerer (human or policy) said no. + * - `'cancelled'` — the question was withdrawn: the prompt was dismissed, or + * the requesting execution aborted while the question was pending. + * - `'unavailable'` — nobody composed could answer (no listener, none that + * recognizes the agent, or an answerer failed). Callers MUST fail closed on + * it, exactly like `'rejected'` — the two differ only for audit and wording. + */ +export type ApprovalOutcome = 'allowed-once' | 'rejected' | 'cancelled' | 'unavailable' + +/** Every {@link ApprovalOutcome}, for runtime normalization of answerer returns. */ +const OUTCOMES: readonly ApprovalOutcome[] = ['allowed-once', 'rejected', 'cancelled', 'unavailable'] + +/** + * Whether the log currently sits inside an open turn (a `turn/start` not yet + * closed by a `turn/end`) — the {@link ApprovalService.request} precondition. + * The audit pair must be turn-enclosed: the turn is the durable log's + * commit/replay boundary, so a bare event appended between turns is + * indistinguishable from a crash tail and silently dropped on reload. + */ +function hasOpenTurn(events: readonly SessionEvent[]): boolean { + for (let index = events.length - 1; index >= 0; index -= 1) { + const type = (events[index] as SessionEvent).type + if (type === 'turn/start') return true + if (type === 'turn/end') return false + } + return false +} + +/** + * One concrete permission question. Identifies the action precisely enough + * for an answerer to present it and for the audit events to reconstruct what + * was asked — it deliberately does NOT carry tool arguments: a UI answerer + * attaches the prompt to the already-streamed tool call via `callId` instead + * of re-rendering the call. + */ +export interface ApprovalRequest { + /** + * The agent on whose behalf the question is asked. Routes the question (a + * UI answerer only answers for agents it owns) and receives the audit + * events on its session log. + */ + agent: Agent + /** The tool the question is about (presentation and audit). */ + toolName: string + /** + * The exact tool call being decided, when the asker has one — lets a UI + * attach the prompt to the tool call it already streamed. + */ + callId?: CallId + /** The asker's human-readable explanation of WHY it is asking. */ + reason?: string + /** + * Aborting withdraws the question: the request settles `'cancelled'` + * immediately and a late answer from a still-pending answerer is discarded. + */ + signal?: AbortSignal +} + +/** + * The `ctx.approval` service: dispatches {@link ApprovalRequest}s to the + * `approval/request` waterfall and audits every ask/outcome pair to the + * requesting agent's session log. Stateless between requests — grants are + * returned to the caller, never stored here. + */ +export class ApprovalService extends Service { + constructor(ctx: Context) { + super(ctx, 'approval') + } + + /** + * Ask the composed answerers to decide one request. Requires an open turn + * on the requesting agent's session — the audit pair below is turn-enclosed + * by contract (the turn is the log's commit/replay boundary; an idle append + * would be dropped as crash tail on reload) — and throws before appending + * anything when called idle; asking outside a turn is a deferred design. + * Within that precondition it always resolves to an outcome, never rejects: + * an aborted signal yields `'cancelled'`, a missing or throwing answerer + * yields `'unavailable'` (fail closed), and a rogue non-vocabulary return + * value is normalized to `'unavailable'`. Appends the + * `approval/asked`/`approval/decided` audit pair (log-only) around the + * decision regardless of outcome. + * @param req - the pending decision (agent, tool identity, reason, signal). + * @returns the closed outcome; `'allowed-once'` is the only grant. + */ + async request(req: ApprovalRequest): Promise { + if (!hasOpenTurn(req.agent.session.events)) { + throw new Error( + 'approval.request() outside an open turn: the approval/asked + approval/decided audit pair ' + + 'must be turn-enclosed (a bare event between turns is crash-tail garbage on reload). ' + + 'Ask from inside the turn that needs the decision.', + ) + } + const id = ApprovalRequestId(randomUUID()) + req.agent.session.append('approval/asked', { + id, + toolName: req.toolName, + ...req.callId !== undefined ? { callId: req.callId } : {}, + ...req.reason !== undefined ? { reason: req.reason } : {}, + }) + const outcome = await this.decide(req) + req.agent.session.append('approval/decided', { id, outcome }) + return outcome + } + + /** Dispatch the waterfall, contained and raced against `req.signal`. */ + private async decide(req: ApprovalRequest): Promise { + if (req.signal?.aborted) return 'cancelled' + // Enter the promise chain BEFORE dispatching: a listener that throws + // SYNCHRONOUSLY (before its first await) must land in the same rejection + // path as an async one — `Promise.resolve(call())` would let it escape + // the containment into the caller. + const answer: Promise = Promise.resolve().then( + () => this.ctx.waterfall(this, 'approval/request', req, () => Promise.resolve('unavailable')), + ).then( + // Normalize a rogue (non-vocabulary) answerer return to the fail-closed + // outcome instead of leaking it into callers' closed-union switches. + outcome => OUTCOMES.includes(outcome) ? outcome : 'unavailable', + // A throwing answerer must fail the QUESTION closed, not the caller's + // tool call open — the seam contains its callbacks. + () => 'unavailable', + ) + const signal = req.signal + if (signal === undefined) return answer + return await new Promise((resolve) => { + const onAbort = () => { resolve('cancelled') } + signal.addEventListener('abort', onAbort, { once: true }) + void answer.then((outcome) => { + signal.removeEventListener('abort', onAbort) + // After an abort won the race this resolve is a settled-promise no-op: + // the late answer is discarded by construction. + resolve(outcome) + }) + }) + } +} + +export default ApprovalService diff --git a/packages/approval/approval/tests/approval.spec.ts b/packages/approval/approval/tests/approval.spec.ts new file mode 100644 index 0000000000..c356723438 --- /dev/null +++ b/packages/approval/approval/tests/approval.spec.ts @@ -0,0 +1,203 @@ +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import type { Agent } from '@deepseek-ai/dsh-agent' +import { CallId } from '@deepseek-ai/dsh-llm' +import type { SessionEvent } from '@deepseek-ai/dsh-session' +import ApprovalService, { ApprovalOutcome, ApprovalRequest } from '@deepseek-ai/dsh-approval' + +/** + * A minimal Agent stand-in — the service only reaches `agent.session.append` + * and folds `.events`. Seeded inside an open turn by default (request()'s + * turn-enclosure precondition); pass `seed` to stage idle/closed logs. + * Returns the recorded audit appends alongside the fake. + */ +function fakeAgent(seed: Array<{ type: string }> = [{ type: 'turn/start' }, { type: 'user/message' }]): { agent: Agent; appended: Array<{ type: string; data: Record }> } { + const appended: Array<{ type: string; data: Record }> = [] + const agent = { + session: { + events: seed, + append: (type: string, data: Record) => { + appended.push({ type, data }) + return { type, data } as unknown as SessionEvent + }, + }, + } as unknown as Agent + return { agent, appended } +} + +async function mounted(): Promise { + const ctx = new Context() + await ctx.plugin(ApprovalService) + return ctx +} + +function requestOf(agent: Agent, overrides: Partial = {}): ApprovalRequest { + return { agent, toolName: 'echo', ...overrides } +} + +describe('ApprovalService.request', () => { + it('throws before appending anything when no turn has ever opened (idle ask)', async () => { + const ctx = await mounted() + const { agent, appended } = fakeAgent([]) + + await expect(ctx.approval.request(requestOf(agent))).rejects.toThrow(/outside an open turn/) + expect(appended).toHaveLength(0) + }) + + it('throws between turns — a closed turn does not satisfy the enclosure precondition', async () => { + const ctx = await mounted() + const { agent, appended } = fakeAgent([{ type: 'turn/start' }, { type: 'turn/end' }]) + + await expect(ctx.approval.request(requestOf(agent))).rejects.toThrow(/outside an open turn/) + expect(appended).toHaveLength(0) + }) + + it('fails closed to unavailable when nobody listens, auditing the asked/decided pair', async () => { + const ctx = await mounted() + const { agent, appended } = fakeAgent() + + const outcome = await ctx.approval.request(requestOf(agent, { callId: CallId('call-1'), reason: 'hook says ask' })) + + expect(outcome).toBe('unavailable') + expect(appended.map(e => e.type)).toEqual(['approval/asked', 'approval/decided']) + const [asked, decided] = appended + expect(asked?.data).toMatchObject({ toolName: 'echo', callId: 'call-1', reason: 'hook says ask' }) + expect(decided?.data).toMatchObject({ outcome: 'unavailable' }) + expect(decided?.data['id']).toBe(asked?.data['id']) + }) + + it('omits absent optional fields from the asked audit event', async () => { + const ctx = await mounted() + const { agent, appended } = fakeAgent() + + await ctx.approval.request(requestOf(agent)) + + expect(Object.keys(appended[0]?.data ?? {}).sort()).toEqual(['id', 'toolName']) + }) + + it('returns the first answering listener outcome (single decision slot)', async () => { + const ctx = await mounted() + const { agent } = fakeAgent() + let secondRan = false + ctx.on('approval/request', () => Promise.resolve('allowed-once')) + ctx.on('approval/request', () => { + secondRan = true + return Promise.resolve('rejected') + }) + + await expect(ctx.approval.request(requestOf(agent))).resolves.toBe('allowed-once') + expect(secondRan).toBe(false) + }) + + it('lets a non-owning listener delegate via next() down to the fail-closed default', async () => { + const ctx = await mounted() + const { agent } = fakeAgent() + ctx.on('approval/request', (_req, next) => next()) + + await expect(ctx.approval.request(requestOf(agent))).resolves.toBe('unavailable') + }) + + it('contains a throwing answerer as unavailable', async () => { + const ctx = await mounted() + const { agent, appended } = fakeAgent() + ctx.on('approval/request', () => Promise.reject(new Error('transport died'))) + + await expect(ctx.approval.request(requestOf(agent))).resolves.toBe('unavailable') + expect(appended[1]?.data).toMatchObject({ outcome: 'unavailable' }) + }) + + it('normalizes a rogue non-vocabulary answer to unavailable', async () => { + const ctx = await mounted() + const { agent } = fakeAgent() + // A JS answerer can return anything; the seam must not leak it into + // callers' closed-union switches. + ctx.on('approval/request', () => Promise.resolve('yolo' as ApprovalOutcome)) + + await expect(ctx.approval.request(requestOf(agent))).resolves.toBe('unavailable') + }) + + it('settles cancelled immediately on an already-aborted signal without asking anyone', async () => { + const ctx = await mounted() + const { agent, appended } = fakeAgent() + let asked = false + ctx.on('approval/request', () => { + asked = true + return Promise.resolve('allowed-once') + }) + + const outcome = await ctx.approval.request(requestOf(agent, { signal: AbortSignal.abort() })) + + expect(outcome).toBe('cancelled') + expect(asked).toBe(false) + expect(appended.map(e => e.type)).toEqual(['approval/asked', 'approval/decided']) + expect(appended[1]?.data).toMatchObject({ outcome: 'cancelled' }) + }) + + it('resolves cancelled when the signal aborts mid-question and discards the late answer', async () => { + const ctx = await mounted() + const { agent, appended } = fakeAgent() + let settleLate: ((outcome: ApprovalOutcome) => void) | undefined + ctx.on('approval/request', () => new Promise((resolve) => { settleLate = resolve })) + const controller = new AbortController() + + const pending = ctx.approval.request(requestOf(agent, { signal: controller.signal })) + controller.abort() + await expect(pending).resolves.toBe('cancelled') + + // The answerer settles after the fact: no second decided event appears. + settleLate?.('allowed-once') + await Promise.resolve() + expect(appended.filter(e => e.type === 'approval/decided')).toHaveLength(1) + expect(appended[1]?.data).toMatchObject({ outcome: 'cancelled' }) + }) + + it('discards a late REJECTION after abort without an unhandled rejection', async () => { + const ctx = await mounted() + const { agent } = fakeAgent() + let rejectLate: ((error: Error) => void) | undefined + ctx.on('approval/request', () => new Promise((_resolve, reject) => { rejectLate = reject })) + const controller = new AbortController() + + const pending = ctx.approval.request(requestOf(agent, { signal: controller.signal })) + controller.abort() + await expect(pending).resolves.toBe('cancelled') + + rejectLate?.(new Error('answered too late')) + // Drain microtasks: the contained rejection must not escape the seam. + await new Promise((resolve) => { setTimeout(resolve, 0) }) + }) + + it('resolves the answer when the signal never aborts', async () => { + const ctx = await mounted() + const { agent } = fakeAgent() + ctx.on('approval/request', () => Promise.resolve('rejected')) + const controller = new AbortController() + + await expect(ctx.approval.request(requestOf(agent, { signal: controller.signal }))).resolves.toBe('rejected') + }) + + it('issues a fresh id per request', async () => { + const ctx = await mounted() + const { agent, appended } = fakeAgent() + + await ctx.approval.request(requestOf(agent)) + await ctx.approval.request(requestOf(agent)) + + const ids = appended.filter(e => e.type === 'approval/asked').map(e => e.data['id']) + expect(ids).toHaveLength(2) + expect(ids[0]).not.toBe(ids[1]) + }) + + it('drops a disposed plugin listener from the chain (HMR safety)', async () => { + const ctx = await mounted() + const { agent } = fakeAgent() + const fiber = await ctx.plugin((inner: Context) => { + inner.on('approval/request', () => Promise.resolve('allowed-once')) + }) + await expect(ctx.approval.request(requestOf(agent))).resolves.toBe('allowed-once') + + await fiber.dispose() + await expect(ctx.approval.request(requestOf(agent))).resolves.toBe('unavailable') + }) +}) + diff --git a/packages/approval/approval/tsconfig.json b/packages/approval/approval/tsconfig.json new file mode 100644 index 0000000000..2d834f075d --- /dev/null +++ b/packages/approval/approval/tsconfig.json @@ -0,0 +1,36 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../../vendor/schemastery" + }, + { + "path": "../../util/brand" + }, + { + "path": "../../llm/llm" + }, + { + "path": "../../core/session" + }, + { + "path": "../../core/agent" + }, + { + "path": "../../core/system-prompt" + } + ] +} diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index 7a383c5064..dde232a626 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -22,7 +22,7 @@ tools: ### Injected services -`SystemPrompt` — the registry automatically feeds its tool schemas into the system-prompt assembly via `ctx.systemPrompt.tools()`. +`SystemPrompt` — the registry automatically feeds its tool schemas into the system-prompt assembly via `ctx.systemPrompt.tools()`. The approval seam is consumed opportunistically instead (`ctx.get('approval')`, no static inject): a deployment without it keeps the ask→deny degrade, and the registry stays active either way. ### Events @@ -38,14 +38,14 @@ tools: - `ToolDefinition` — `ToolSchema` + `execute(args, exec): Promise` (the bare array is the model-facing content; the object form additionally attaches an opaque, JSON-serializable `meta` presentation payload persisted on the `tool/result` event and handed back to `presentResult`), plus optional `presentCall(args)` / `presentResult(args, result)` for tool-owned UI presentation (see below). It also carries an optional cooperative timeout budget `timeoutMs?: number` (ms) enforced by `@deepseek-ai/dsh-timeout-policy`, never sent to the model. - `ToolExecution` — one pending tool call: `{ callId, name, arguments, agent?, signal? }`. - `ToolExecutionResult` — outcome: `{ callId, content, isError, error?, additionalContext?, meta? }`. On failure with a `HarnessError`, `error: { name, code }` carries the structured failure class alongside the model-facing text (the loop forwards it onto the `tool/result` session event for retry/sandbox plugins and replay). `additionalContext` (a `HookContext`) ferries any `tools/post-execute` context up to the loop, which buffers it and appends it as a `context/message` after all `tool/result`s in the step. `meta` is the tool's opaque presentation payload from a successful `execute` (the object return form); the loop forwards it onto the `tool/result` session event for result-card rendering. -- `PreToolDecision` — `{kind:'allow'}` | `{kind:'deny', reason}` | `{kind:'ask', reason?}`. Input rewrite (changing `arguments`) is deliberately NOT offered (it would desync the pre-execution audit/history/UI from what ran — its own proposed RFC); `ask` degrades to `deny` until the permission system lands. +- `PreToolDecision` — `{kind:'allow'}` | `{kind:'deny', reason}` | `{kind:'ask', reason?}`. Input rewrite (changing `arguments`) is deliberately NOT offered (it would desync the pre-execution audit/history/UI from what ran — its own proposed RFC); `ask` is serviced by [`ctx.approval`](../../approval/approval/README.md) when a deployment mounts it (`allowed-once` proceeds to dispatch; `rejected`/`cancelled`/`unavailable` deny with distinct reasons) and degrades to `deny` when none is mounted or the execution carries no agent. - `PostToolDecision` — `{kind:'accept', content?, additionalContext?}` (keep the call successful, optionally replacing the model-facing content) | `{kind:'block', feedback, additionalContext?}` (turn it into an `isError` whose content is the corrective feedback). Output replacement is clean because `tool/result` is logged AFTER `execute()` returns. - `ToolCallView` / `ToolResultView` — provider-neutral `card`-tagged render intents a tool returns from `presentCall` / `presentResult` to own how a UI renders ITS calls (see "Tool-owned UI presentation"). ### Extension points - Tool plugins call `ctx.tools.register()` — schemas flow into the assembly automatically. -- `tools/pre-execute` is the allow/deny gate (sandbox, permission, hooks): listeners receive `(exec, next)` and call `next()` to delegate to the default (allow) or return a `PreToolDecision` to short-circuit; a `deny`/`ask` skips dispatch and yields an `isError` result. `tools/execute` is the around-dispatch seam (timeout, retry, metrics): listeners receive `(exec, next)` and call `next()` to delegate to core dispatch (returning its `ToolExecutionResult`, optionally wrapped), or return a replacement result to short-circuit dispatch; the base `next()` IS dispatch-with-normalization, so `await next()` already yields an `isError` result for a thrown/unknown tool (never a raw throw). A wrapper mutates `exec` in place before `next()` — e.g. replacing `exec.signal` with a per-call deadline — because cordis `next()` ignores passed arguments. `tools/post-execute` is the inspect/transform seam: `(exec, result, next)` → a `PostToolDecision` that can replace content, block with feedback, or attach `additionalContext`. Core dispatch is the base of the `tools/execute` waterfall; the tool body keeps its own try/catch so a thrown tool still reaches `post-execute` as an `isError`. All follow the typed-Decision idiom shared with the `agent/*` interception seams (see [`dsh-agent`](../agent/README.md)); `@deepseek-ai/dsh-timeout-policy` is the reference `tools/execute` wrapper. +- `tools/pre-execute` is the allow/deny gate (sandbox, permission, hooks): listeners receive `(exec, next)` and call `next()` to delegate to the default (allow) or return a `PreToolDecision` to short-circuit; a `deny` skips dispatch and yields an `isError` result, and an `ask` resolves through the approval seam first — only a grant dispatches (see `PreToolDecision` above). `tools/execute` is the around-dispatch seam (timeout, retry, metrics): listeners receive `(exec, next)` and call `next()` to delegate to core dispatch (returning its `ToolExecutionResult`, optionally wrapped), or return a replacement result to short-circuit dispatch; the base `next()` IS dispatch-with-normalization, so `await next()` already yields an `isError` result for a thrown/unknown tool (never a raw throw). A wrapper mutates `exec` in place before `next()` — e.g. replacing `exec.signal` with a per-call deadline — because cordis `next()` ignores passed arguments. `tools/post-execute` is the inspect/transform seam: `(exec, result, next)` → a `PostToolDecision` that can replace content, block with feedback, or attach `additionalContext`. Core dispatch is the base of the `tools/execute` waterfall; the tool body keeps its own try/catch so a thrown tool still reaches `post-execute` as an `isError`. All follow the typed-Decision idiom shared with the `agent/*` interception seams (see [`dsh-agent`](../agent/README.md)); `@deepseek-ai/dsh-timeout-policy` is the reference `tools/execute` wrapper. - MCP servers: one plugin per server, discover tools, call `ctx.tools.register()` with the server's schemas. ### Typed tool parameter schemas diff --git a/packages/core/tools/package.json b/packages/core/tools/package.json index f6425538b1..aafd87385f 100644 --- a/packages/core/tools/package.json +++ b/packages/core/tools/package.json @@ -23,6 +23,7 @@ "license": "BSD-3-Clause", "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", + "@deepseek-ai/dsh-approval": "^0.0.1", "@deepseek-ai/dsh-code-runtime": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-session": "^0.0.1", @@ -34,6 +35,7 @@ }, "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", + "@deepseek-ai/dsh-approval": "workspace:^", "@deepseek-ai/dsh-code-runtime": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index e113a0c77c..20f32ec97d 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -19,10 +19,13 @@ import { Context, Service } from 'cordis' import z from 'schemastery' import type { CallId, ContentBlock, ToolSchema } from '@deepseek-ai/dsh-llm' -import { HarnessError } from '@deepseek-ai/dsh-llm' +import { assertNever, HarnessError } from '@deepseek-ai/dsh-llm' import type { Agent, HookContext } from '@deepseek-ai/dsh-agent' import type {} from '@deepseek-ai/dsh-system-prompt' import type { CodeRuntime } from '@deepseek-ai/dsh-code-runtime' +// Type-only: makes `ctx.get('approval')` resolve to the ApprovalService +// augmentation. The seam stays optional at runtime — see `serviceAsk`. +import type {} from '@deepseek-ai/dsh-approval' import type { ToolCallView, ToolResultView } from './presentation.ts' import { createRunCodeTool, RUN_CODE_NAME, SDK_SECTION_ORDER } from './code-mode.ts' import { renderToolsSdk } from './ts-types.ts' @@ -83,8 +86,8 @@ declare module 'cordis' { * or return a {@link PreToolDecision} without calling `next()` to * short-circuit. A `deny` skips dispatch and yields an `isError` result; the * tool body never runs. Input rewrite is deliberately NOT offered here (see - * {@link PreToolDecision}); `ask` degrades to deny until the permission - * system lands (`FIXME(permissions)`). + * {@link PreToolDecision}); `ask` is serviced by the `ctx.approval` seam + * when one is mounted, and degrades to deny otherwise. * @param exec - the pending call (name, parsed arguments, caller agent). * @mode waterfall */ @@ -268,8 +271,9 @@ export interface ToolExecutionResult { * would desync the UI from what RAN. That consistency redesign is its own * `proposed` RFC; `TODO(pre-tool-input-rewrite)` anchors it at the call site.) * - `deny` skips dispatch; the loop records an `isError` result carrying `reason`. - * - `ask` is the permission-prompt intent; until the permission system exists it - * degrades to `deny` (`FIXME(permissions)`). + * - `ask` is the permission-prompt intent: serviced as a one-shot decision by + * the `ctx.approval` seam when one is mounted (`allowed-once` proceeds to + * dispatch; every other outcome denies), degrading to `deny` when none is. */ export type PreToolDecision = | { kind: 'allow' } @@ -486,22 +490,17 @@ export class ToolRegistry extends Service { */ async execute(exec: ToolExecution): Promise { try { - // --- Gate: tools/pre-execute. A deny (or an ask, which degrades to deny - // until the permission system lands) skips dispatch entirely. --- - const decision = await this.ctx.waterfall( + // --- Gate: tools/pre-execute. An `ask` resolves through the approval + // seam (or degrades) to allow/deny before the shared deny path. --- + const gate = await this.ctx.waterfall( this, 'tools/pre-execute', exec, () => Promise.resolve({ kind: 'allow' }), ) + const decision = gate.kind === 'ask' ? await this.serviceAsk(exec, gate) : gate if (decision.kind !== 'allow') { - // deny → isError. ask has no permission UI yet, so degrade to deny - // (FIXME(permissions)): a forthcoming permission system turns `ask` into - // a real prompt; today it is the conservative "not allowed". - const reason = decision.kind === 'deny' - ? decision.reason - : decision.reason ?? `tool "${exec.name}" requires approval (not yet supported)` const denied: ToolExecutionResult = { callId: exec.callId, - content: [{ type: 'text', text: `Error: ${reason}` }], + content: [{ type: 'text', text: `Error: ${decision.reason}` }], isError: true, } return await this.postExecute(exec, denied) @@ -540,6 +539,44 @@ export class ToolRegistry extends Service { } } + /** + * Resolve an `ask` decision to allow/deny through the approval seam. The + * seam is consumed opportunistically with `ctx.get('approval')` — a + * deployment that composes no ApprovalService keeps the historical degrade + * to deny, and an unmount mid-session degrades the same way on the next ask. + * An agent-less execution also degrades: without an agent there is no + * session to audit to and no UI to route to. Otherwise the outcome maps + * one-to-one — `allowed-once` proceeds; the three non-grants deny with + * distinct reasons so the model can tell a human "no" from an absent + * approval channel. + */ + private async serviceAsk( + exec: ToolExecution, + ask: Extract, + ): Promise> { + const approval = this.ctx.get('approval') + if (approval === undefined) { + return { kind: 'deny', reason: ask.reason ?? `tool "${exec.name}" requires approval (not yet supported)` } + } + if (exec.agent === undefined) { + return { kind: 'deny', reason: `tool "${exec.name}" requires approval, but the call has no agent to route it through` } + } + const outcome = await approval.request({ + agent: exec.agent, + toolName: exec.name, + callId: exec.callId, + ...ask.reason !== undefined ? { reason: ask.reason } : {}, + ...exec.signal !== undefined ? { signal: exec.signal } : {}, + }) + switch (outcome) { + case 'allowed-once': return { kind: 'allow' } + case 'rejected': return { kind: 'deny', reason: `the user rejected tool "${exec.name}"` } + case 'cancelled': return { kind: 'deny', reason: `approval for tool "${exec.name}" was cancelled` } + case 'unavailable': return { kind: 'deny', reason: `tool "${exec.name}" requires approval, but no approval channel is available` } + default: return assertNever(outcome, 'ApprovalOutcome') + } + } + /** * Run the `tools/post-execute` waterfall over a dispatched `result` and apply * its {@link PostToolDecision}: `accept` keeps the call successful (replacing diff --git a/packages/core/tools/tests/tools.spec.ts b/packages/core/tools/tests/tools.spec.ts index cad484640b..6b59d96eb7 100644 --- a/packages/core/tools/tests/tools.spec.ts +++ b/packages/core/tools/tests/tools.spec.ts @@ -2,6 +2,8 @@ import { describe, expect, expectTypeOf, it } from 'vitest' import { Context } from 'cordis' import { CallId, HarnessError } from '@deepseek-ai/dsh-llm' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import type { Agent } from '@deepseek-ai/dsh-agent' +import ApprovalService, { type ApprovalOutcome, type ApprovalRequest } from '@deepseek-ai/dsh-approval' import ToolRegistry, { defineTool, schemaSpecToJsonSchema, validateArgs, ToolArgsError, ToolNotFoundError, type InferArgs, type SchemaSpec, type PreToolDecision, type PostToolDecision, @@ -158,7 +160,7 @@ describe('ToolRegistry', () => { expect(result.content[0]).toMatchObject({ text: 'Error: denied by policy' }) }) - it('an ask decision degrades to deny until the permission system lands', async () => { + it('an ask decision degrades to deny when no approval seam is mounted', async () => { const ctx = await setup() ctx.tools.register(echoTool) @@ -181,6 +183,107 @@ describe('ToolRegistry', () => { expect(result.content[0]).toMatchObject({ text: 'Error: tool "echo" requires approval (not yet supported)' }) }) + describe('ask routing through ctx.approval', () => { + /** + * A minimal Agent stand-in — the approval seam reaches + * `agent.session.append` and folds `.events`; the seeded open turn + * satisfies request()'s enclosure precondition. + */ + function fakeAgent(): Agent { + return { + session: { events: [{ type: 'turn/start' }], append: () => ({}) }, + } as unknown as Agent + } + + async function approvalSetup() { + const ctx = await setup() + await ctx.plugin(ApprovalService) + ctx.tools.register(echoTool) + return ctx + } + + it('dispatches the tool when the answerer grants allowed-once, forwarding the ask fields', async () => { + const ctx = await approvalSetup() + const agent = fakeAgent() + const controller = new AbortController() + const seen: ApprovalRequest[] = [] + ctx.on('approval/request', (req) => { + seen.push(req) + return Promise.resolve('allowed-once') + }) + ctx.on('tools/pre-execute', async (_exec, _next): Promise => + ({ kind: 'ask', reason: 'hook wants a human' })) + + const result = await ctx.tools.execute({ + callId: CallId('c1'), name: 'echo', arguments: { text: 'hi' }, agent, signal: controller.signal, + }) + + expect(result).toMatchObject({ isError: false, content: [{ type: 'text', text: 'hi' }] }) + expect(seen).toHaveLength(1) + expect(seen[0]).toMatchObject({ agent, toolName: 'echo', callId: 'c1', reason: 'hook wants a human' }) + expect(seen[0]?.signal).toBe(controller.signal) + }) + + it('denies with the user-rejection reason on rejected', async () => { + const ctx = await approvalSetup() + ctx.on('approval/request', () => Promise.resolve('rejected')) + ctx.on('tools/pre-execute', async (_exec, _next): Promise => ({ kind: 'ask' })) + + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'echo', arguments: {}, agent: fakeAgent() }) + expect(result.isError).toBe(true) + expect(result.content[0]).toMatchObject({ text: 'Error: the user rejected tool "echo"' }) + }) + + it('denies with the cancellation reason on cancelled', async () => { + const ctx = await approvalSetup() + ctx.on('approval/request', () => Promise.resolve('cancelled')) + ctx.on('tools/pre-execute', async (_exec, _next): Promise => ({ kind: 'ask' })) + + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'echo', arguments: {}, agent: fakeAgent() }) + expect(result.isError).toBe(true) + expect(result.content[0]).toMatchObject({ text: 'Error: approval for tool "echo" was cancelled' }) + }) + + it('denies with the no-channel reason when the seam is mounted but nobody answers', async () => { + const ctx = await approvalSetup() + ctx.on('tools/pre-execute', async (_exec, _next): Promise => ({ kind: 'ask' })) + + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'echo', arguments: {}, agent: fakeAgent() }) + expect(result.isError).toBe(true) + expect(result.content[0]).toMatchObject({ text: 'Error: tool "echo" requires approval, but no approval channel is available' }) + }) + + it('denies an agent-less execution without asking — nothing to route or audit through', async () => { + const ctx = await approvalSetup() + let asked = false + ctx.on('approval/request', () => { + asked = true + return Promise.resolve('allowed-once') + }) + ctx.on('tools/pre-execute', async (_exec, _next): Promise => ({ kind: 'ask' })) + + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'echo', arguments: {} }) + expect(asked).toBe(false) + expect(result.isError).toBe(true) + expect(result.content[0]).toMatchObject({ text: 'Error: tool "echo" requires approval, but the call has no agent to route it through' }) + }) + + it('turns a rogue outcome from a NON-conforming approval stand-in into an isError result', async () => { + // ApprovalService normalizes rogue answers itself; this pins the + // registry's own exhaustiveness backstop by shadowing the service with a + // stand-in that violates the outcome contract. + const ctx = await setup() + ctx.tools.register(echoTool) + ctx.provide('approval', { request: () => Promise.resolve('yolo') } as unknown as ApprovalService) + ctx.on('tools/pre-execute', async (_exec, _next): Promise => ({ kind: 'ask' })) + + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'echo', arguments: {}, agent: fakeAgent() }) + expect(result.isError).toBe(true) + const text = result.content[0]?.type === 'text' ? result.content[0].text : '' + expect(text).toContain('unreachable') + }) + }) + it('a tools/post-execute listener can replace the result content (accept) ', async () => { const ctx = await setup() ctx.tools.register(echoTool) diff --git a/packages/core/tools/tsconfig.json b/packages/core/tools/tsconfig.json index 68edd3b003..19e17e950f 100644 --- a/packages/core/tools/tsconfig.json +++ b/packages/core/tools/tsconfig.json @@ -28,6 +28,9 @@ }, { "path": "../../core/agent" + }, + { + "path": "../../approval/approval" } ] } diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 1f607b7d9d..4b6542bbe0 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -75,6 +75,24 @@ importers: specifier: ^4.1.8 version: 4.1.8(@types/node@22.20.0)(@vitest/coverage-v8@4.1.8)(jsdom@29.1.1)(vite@8.0.16(@types/node@22.20.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0)) + packages/approval/approval: + devDependencies: + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../../core/agent + '@deepseek-ai/dsh-brand': + specifier: workspace:^ + version: link:../../util/brand + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + '@deepseek-ai/dsh-session': + specifier: workspace:^ + version: link:../../core/session + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/bash/bash: devDependencies: '@deepseek-ai/dsh-brand': @@ -348,6 +366,9 @@ importers: '@deepseek-ai/dsh-agent': specifier: workspace:^ version: link:../agent + '@deepseek-ai/dsh-approval': + specifier: workspace:^ + version: link:../../approval/approval '@deepseek-ai/dsh-code-runtime': specifier: workspace:^ version: link:../../code-runtime/code-runtime diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 610ff3f1ea..5061b12ddb 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -159,6 +159,15 @@ const SERVICE_ROLES: ServiceRole[] = [ consumers: ['tool-bash', 'hooks-claude', 'hooks-codex'], note: 'The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors can replace bash-local.', }, + { + key: 'approval', + pkg: 'approval', + title: 'Approval seam', + mode: 'seam', + implementations: [], + consumers: ['tools'], + note: 'One-shot permission decisions dispatched over the `approval/request` waterfall; answerers are listeners (the ACP bridge for its own agents), absence fails closed to `unavailable`.', + }, { key: 'codeRuntime', pkg: 'code-runtime', @@ -673,7 +682,8 @@ function renderToolPipeline(): string { ` toolCall["Session event: ${mermaidCode('tool/call')}
logged before execution"]`, ' presentCall["UI pending card
presentCall(args)"]', ` pre["${mermaidCode('tools/pre-execute')} waterfall
hooks, permission, sandbox"]`, - ' denied["deny or ask
tool body skipped"]', + ' denied["denied
tool body skipped"]', + ` approval["${mermaidCode('ctx.approval')} one-shot prompt
absent or unanswerable: deny"]`, ` around["${mermaidCode('tools/execute')} waterfall
timeout, retry, metrics (around dispatch)"]`, ' toolBody["Registered tool execute() body"]', ` fsGate["${mermaidCode('fs/write-intent')} or ${mermaidCode('fs/edit-intent')}
tool-fs mutations only"]`, @@ -687,7 +697,10 @@ function renderToolPipeline(): string { ' toolCall --> pre', ' pre -->|allow| around', ' around --> toolBody', - ' pre -->|deny or ask| denied', + ' pre -->|deny| denied', + ' pre -->|ask| approval', + ' approval -->|allowed-once| around', + ' approval -->|rejected, cancelled, unavailable| denied', ' denied --> post', ' toolBody --> fsGate', ' fsGate --> toolBody', @@ -699,7 +712,7 @@ function renderToolPipeline(): string { ' toolResult --> presentResult', '```', '', - 'Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate; hook bridges and future permission prompts live on the generic pre/post tool waterfalls; and around-dispatch concerns like the tool-call timeout policy (`@deepseek-ai/dsh-timeout-policy`) wrap core dispatch on `tools/execute`. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service. Code Mode rides the same pipeline twice over: `run_code` is itself a registered tool body, and each tool call its program makes re-enters `ctx.tools.execute()` through BOTH waterfalls — serialized one at a time, logged as a `tool/code-dispatch` session event, with a deny surfacing to the program as a binding rejection (a sub-call\'s `additionalContext` is deliberately dropped — no safe outlet mid-run preserves call/result adjacency).', + 'Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate; hook bridges and the approval seam\'s permission prompts live on the generic pre/post tool waterfalls; and around-dispatch concerns like the tool-call timeout policy (`@deepseek-ai/dsh-timeout-policy`) wrap core dispatch on `tools/execute`. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service.', '', ...maintenanceFooter(maintenance), ].join('\n') diff --git a/tsconfig.base.json b/tsconfig.base.json index ddba51c53f..b6d0281f81 100644 --- a/tsconfig.base.json +++ b/tsconfig.base.json @@ -40,6 +40,7 @@ // here. The build graph's project references (tsconfig.build.json) stay // explicit — TS project references have no wildcard form. "@deepseek-ai/dsh-*": [ + "./packages/approval/*/src", "./packages/core/*/src", "./packages/llm/*/src", "./packages/bash/*/src", diff --git a/tsconfig.build.json b/tsconfig.build.json index feff283866..2033218d01 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -18,6 +18,7 @@ { "path": "./packages/session-persistence/session-persistence-jsonl" }, { "path": "./packages/session-persistence/session-persistence-sqlite" }, { "path": "./packages/core/system-prompt" }, + { "path": "./packages/approval/approval" }, { "path": "./packages/core/agent" }, { "path": "./packages/ui/user-interaction" }, { "path": "./packages/core/tools" }, diff --git a/tsconfig.json b/tsconfig.json index feb2ca5b07..af8badd19f 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -29,6 +29,7 @@ { "path": "./packages/session-persistence/session-persistence-jsonl" }, { "path": "./packages/session-persistence/session-persistence-sqlite" }, { "path": "./packages/core/system-prompt" }, + { "path": "./packages/approval/approval" }, { "path": "./packages/core/agent" }, { "path": "./packages/ui/user-interaction" }, { "path": "./packages/core/tools" }, From 80d872660164a48f829d4603f97916111b322f94 Mon Sep 17 00:00:00 2001 From: kingwl Date: Thu, 9 Jul 2026 15:36:08 +0800 Subject: [PATCH 168/232] feat(acp): the bridge approval answerer + scripted permission answers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The ACP bridge registers the first real approval answerer: an ask for an agent it owns becomes session/request_permission attached to the already- streamed tool call (one-shot allow_once/reject_once only), outcomes map conservatively (unknown optionId never grants, client cancel → cancelled), and foreign or call-less requests delegate down the waterfall. The snapshot harness accepts scripted permissionAnswers (FIFO; an unscripted prompt answers cancelled, fail closed) so recorded scenarios can drive the wire keylessly. --- docs/capability-seams.md | 3 +- docs/config-catalog.md | 2 +- docs/event-producer-consumer.md | 2 +- docs/module-graph.md | 3 +- examples/acp-agent/README.md | 2 +- examples/acp-agent/tests/acp.e2e.ts | 5 +- packages/support/acp-snapshot/README.md | 2 +- packages/support/acp-snapshot/src/harness.ts | 20 ++++ .../tests/fixtures/fake-acp-agent.ts | 35 ++++++ .../acp-snapshot/tests/harness.spec.ts | 49 ++++++++ packages/ui/acp/README.md | 10 +- packages/ui/acp/acp-feature-support.md | 29 +++-- packages/ui/acp/package.json | 4 + packages/ui/acp/src/index.ts | 41 ++++++- packages/ui/acp/tests/approval.spec.ts | 108 ++++++++++++++++++ packages/ui/acp/tsconfig.json | 6 + pnpm-lock.yaml | 9 ++ scripts/gen-doc-graphs.ts | 2 +- 18 files changed, 302 insertions(+), 30 deletions(-) create mode 100644 packages/ui/acp/tests/approval.spec.ts diff --git a/docs/capability-seams.md b/docs/capability-seams.md index c71c74003e..abddc73ed2 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -73,6 +73,7 @@ flowchart LR svc_workflows["ctx.workflows
Workflow script engine"] pkg_workflow_workerthread["workflow-workerthread"] pkg_tool_workflow["tool-workflow"] + pkg_acp --> svc_approval pkg_acp --> svc_userInteraction pkg_agent --> svc_agents pkg_agent_loop --> svc_agentLoop @@ -164,7 +165,7 @@ flowchart LR | `ctx.agents` | `core` | [`agent`](../packages/core/agent) | - | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp), [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`stdio-agent`](../packages/ui/stdio-agent), [`invariants`](../packages/support/invariants) | - | Owns live Agent handles and the create/resume factory seam. | | `ctx.agentLoop` | `bundle` | [`agent-loop`](../packages/core/agent-loop) | - | [`agent-core`](../packages/core/agent-core) | - | The one concrete loop plugin; extension packages depend on dsh-agent events and services, not on this package. | | `ctx.bash` | `seam` | [`bash`](../packages/bash/bash) | [`bash-local`](../packages/bash/bash-local) | [`tool-bash`](../packages/bash/tool-bash), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | - | The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors can replace bash-local. | -| `ctx.approval` | `seam` | [`approval`](../packages/approval/approval) | - | [`tools`](../packages/core/tools) | - | One-shot permission decisions dispatched over the `approval/request` waterfall; answerers are listeners (the ACP bridge for its own agents), absence fails closed to `unavailable`. | +| `ctx.approval` | `seam` | [`approval`](../packages/approval/approval) | [`acp`](../packages/ui/acp) | [`tools`](../packages/core/tools) | - | One-shot permission decisions dispatched over the `approval/request` waterfall; answerers are listeners (the ACP bridge for its own agents), absence fails closed to `unavailable`. | | `ctx.codeRuntime` | `seam` | [`code-runtime`](../packages/code-runtime/code-runtime) | [`code-runtime-worker`](../packages/code-runtime/code-runtime-worker) | [`tools`](../packages/core/tools) | - | Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the tool registry consumes it for Code Mode). | | `ctx.fs` | `seam` | [`fs`](../packages/fs/fs) | [`fs-local`](../packages/fs/fs-local) | [`tool-fs`](../packages/fs/tool-fs) | [`fs-policy`](../packages/fs/fs-policy) | tool-fs executes read/write/edit through ctx.fs; fs-policy contributes observed-state checks through the fs/* event gate. | | `ctx.compact` | `seam` | [`compact`](../packages/compact/compact) | [`compact-basic`](../packages/compact/compact-basic) | [`compact-basic`](../packages/compact/compact-basic) | - | The basic backend currently consumes the pre-step event directly; a model-facing compact tool remains deferred. | diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 7866a123f2..ed175f250b 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -31,7 +31,7 @@ export interface AcpConfig { Depends on: `Stream` (`@agentclientprotocol/sdk`) -Source: [`packages/ui/acp/src/index.ts:236`](../packages/ui/acp/src/index.ts) +Source: [`packages/ui/acp/src/index.ts:241`](../packages/ui/acp/src/index.ts) ## `@deepseek-ai/dsh-acp-agent` diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 5b50b30cc2..57b1f108ca 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -19,7 +19,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `agent/status` | `emit` | [`packages/core/agent/src/types.ts:281`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:451`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | | `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:464`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `approval/request` | `waterfall` | [`packages/approval/approval/src/index.ts:52`](../packages/approval/approval/src/index.ts) | [`approval`](../packages/approval/approval) (`waterfall`) | - | +| `approval/request` | `waterfall` | [`packages/approval/approval/src/index.ts:52`](../packages/approval/approval/src/index.ts) | [`approval`](../packages/approval/approval) (`waterfall`) | [`acp`](../packages/ui/acp) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | diff --git a/docs/module-graph.md b/docs/module-graph.md index 6237fac953..2bcd15c967 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -196,6 +196,7 @@ flowchart TD pkg_hooks_codex --> pkg_session pkg_hooks_codex --> pkg_tools pkg_acp --> pkg_agent + pkg_acp --> pkg_approval pkg_acp --> pkg_llm pkg_acp --> pkg_session pkg_acp --> pkg_session_persistence @@ -315,7 +316,7 @@ flowchart TD | [`tool-todo`](../packages/todo/tool-todo) | `todo` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`tool-cordis`](../packages/cordis/tool-cordis) | `cordis` | [`tools`](../packages/core/tools) | | [`hooks-codex`](../packages/hooks/hooks-codex) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | -| [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | +| [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`approval`](../packages/approval/approval), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | | [`tool-ask-user`](../packages/ui/tool-ask-user) | `ui` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | | [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | `guard` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools) | | [`tool-workflow`](../packages/workflow/tool-workflow) | `workflow` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`workflow`](../packages/workflow/workflow) | diff --git a/examples/acp-agent/README.md b/examples/acp-agent/README.md index 5b3c936651..c78943284d 100644 --- a/examples/acp-agent/README.md +++ b/examples/acp-agent/README.md @@ -37,4 +37,4 @@ This example is the home of the harness's **snapshot tests** — they boot this ## MVP limitations -The bridge supports N concurrent sessions per connection, each in its own workspace `cwd` (RFC 011). Remaining limits: prompts support ACP's baseline `text` and `resource_link` blocks only, `additionalDirectories` and `mcpServers` are rejected, and the tool-permission gate is deferred (`TODO(rfc010-permission-gate)` — tools run with the executor's full authority). See `packages/ui/acp/README.md` for the full contract. +The bridge supports N concurrent sessions per connection, each in its own workspace `cwd` (RFC 011). Remaining limits: prompts support ACP's baseline `text` and `resource_link` blocks only, and `additionalDirectories` and `mcpServers` are rejected. Permission prompts (`session/request_permission`) are wired through the approval seam, but this example composes no ask-producing policy, so tools run with the executor's full authority. See `packages/ui/acp/README.md` for the full contract. diff --git a/examples/acp-agent/tests/acp.e2e.ts b/examples/acp-agent/tests/acp.e2e.ts index 714791fa3e..f1572991ee 100644 --- a/examples/acp-agent/tests/acp.e2e.ts +++ b/examples/acp-agent/tests/acp.e2e.ts @@ -80,8 +80,9 @@ function spawnAcpAgent(cwd: string, env: NodeJS.ProcessEnv = process.env): Spawn return Promise.resolve() }, requestPermission(_params: RequestPermissionRequest): Promise { - // Permission gate is deferred (TODO(rfc010-permission-gate)); the bridge - // never requests permission yet, so just allow if it ever does. + // This example composes no ask-producing policy (no hooks), so the + // bridge never prompts here; answer cancelled (fail closed) if it ever + // does — an unexpected prompt must not grant anything. return Promise.resolve({ outcome: { outcome: 'cancelled' } }) }, }) diff --git a/packages/support/acp-snapshot/README.md b/packages/support/acp-snapshot/README.md index 209b1a81cb..ff1738f462 100644 --- a/packages/support/acp-snapshot/README.md +++ b/packages/support/acp-snapshot/README.md @@ -35,4 +35,4 @@ A scenario booting a differently-composed tree sets its own `configPath` (an ove The example also ships a `cordis.snapshot.yml` replay overlay next to its `cordis.yml` (the bin swaps them under `DSH_SNAPSHOT=replay` — [single-source replay config RFC](../../../docs/rfc/implemented/testing/2026-07-04-single-source-acp-replay-config.md)); replay fixtures are served by [`dsh-llm-replay`](../llm-replay/README.md), which this package points at via the `DSH_SNAPSHOT_*` env vars it sets on the child. Fixture roles, record/replay semantics, and scenario-table fields are documented on `Scenario` and in the [snapshot RFC](../../../docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md). -Constraints: `suite.ts` imports vitest, so the package is importable only inside a vitest run (the harness and normalizers have no such dependency but ship from the same entry). ACP-specific by design — the harness speaks the SDK's `ClientSideConnection`. Permission round-trips are scriptable: `InputScript.permissionAnswers` is a FIFO queue of option-kind selections (`allow_once`, `reject_once`, …) the client maps to the agent-issued `optionId` at answer time; an absent or exhausted queue answers `cancelled`, and a kind the request never offered rejects the run (the agent is answered `cancelled`, so a tolerant agent cannot absorb the scenario bug). +Constraints: `suite.ts` imports vitest, so the package is importable only inside a vitest run (the harness and normalizers have no such dependency but ship from the same entry). ACP-specific by design — the harness speaks the SDK's `ClientSideConnection`. Permission round-trips are scriptable: `InputScript.permissionAnswers` is a FIFO queue of option-kind selections (`allow_once`, `reject_once`, …) the client maps to the agent-issued `optionId` at answer time; an absent or exhausted queue answers `cancelled`, and a kind the request never offered rejects the run (the agent is answered `cancelled`, so a tolerant agent cannot absorb the scenario bug). Session config options are scriptable too: the `setConfigOption` step switches a knob over `session/set_config_option`, and `setConfigOptionExpectError` asserts the bridge rejects an unknown id or out-of-vocabulary value (the error frame stays in the transcript). diff --git a/packages/support/acp-snapshot/src/harness.ts b/packages/support/acp-snapshot/src/harness.ts index c0f5788fca..bd197b298b 100644 --- a/packages/support/acp-snapshot/src/harness.ts +++ b/packages/support/acp-snapshot/src/harness.ts @@ -85,6 +85,8 @@ export type InputStep = | { op: 'promptExpectError'; text: string } | { op: 'promptAndCancel'; text: string } | { op: 'cancel' } + | { op: 'setConfigOption'; configId: string; value: string } + | { op: 'setConfigOptionExpectError'; configId: string; value: string } /** A scenario's `input.json`: an ordered list of input steps. */ export interface InputScript { @@ -406,6 +408,24 @@ async function runStep( await client.cancel({ sessionId }) return } + case 'setConfigOption': { + const sessionId = getSessionId() + if (sessionId === undefined) throw new Error('snapshot-harness: setConfigOption before newSession') + await client.setSessionConfigOption({ sessionId, configId: step.configId, value: step.value }) + return + } + case 'setConfigOptionExpectError': { + const sessionId = getSessionId() + if (sessionId === undefined) throw new Error('snapshot-harness: setConfigOptionExpectError before newSession') + // The bridge rejects an unknown id / out-of-vocabulary value; the SDK + // surfaces that as a rejected RPC — swallow it so the run completes and + // the error frame is captured in the transcript. + await client.setSessionConfigOption({ sessionId, configId: step.configId, value: step.value }).then( + () => { throw new Error('snapshot-harness: expected set_config_option to be rejected but it succeeded') }, + () => { /* expected: the bridge rejected the id or value */ }, + ) + return + } default: throw new Error(`snapshot-harness: unknown input op ${JSON.stringify(step)}`) } diff --git a/packages/support/acp-snapshot/tests/fixtures/fake-acp-agent.ts b/packages/support/acp-snapshot/tests/fixtures/fake-acp-agent.ts index cf41412046..861c9d2b04 100644 --- a/packages/support/acp-snapshot/tests/fixtures/fake-acp-agent.ts +++ b/packages/support/acp-snapshot/tests/fixtures/fake-acp-agent.ts @@ -58,6 +58,13 @@ interface Behavior { strayBucketFile?: boolean /** Delete the sessions root entirely (harvest must yield no logs). */ deleteSessionsRoot?: boolean + /** + * Vocabulary for `session/set_config_option`: allowed values per config id. + * A set naming an unknown id or an out-of-vocabulary value rejects (the + * real bridge's rule); a valid set answers with the complete refreshed + * option state, `currentValue` updated. Absent: every set rejects. + */ + configOptions?: Record } const sessionsRoot = process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? '' @@ -81,6 +88,8 @@ let sessionCwd = '' let parkedPromptId: number | string | null = null /** Resolvers for permission-probe responses, keyed by outbound request id. */ const pendingPermission = new Map void>() +/** Per-run `session/set_config_option` state: config id → current value (first vocabulary entry until set). */ +const currentConfig: Record = {} function send(frame: Record): void { process.stdout.write(`${JSON.stringify({ jsonrpc: '2.0', ...frame })}\n`) @@ -195,6 +204,32 @@ function handleFrame(frame: Record): void { case 'session/prompt': void handlePrompt(id as number | string) return + case 'session/set_config_option': { + const vocabulary = behavior.configOptions + const configId = params.configId as string + const value = params.value as string + const values = vocabulary?.[configId] + if (values === undefined) { + respondError(id as number | string, `unknown config option ${configId}`) + return + } + if (!values.includes(value)) { + respondError(id as number | string, `unknown ${configId} value ${value}`) + return + } + currentConfig[configId] = value + // The real bridge's contract: every set answers with the COMPLETE + // refreshed option state, not just the changed entry. + respond(id as number | string, { + configOptions: Object.entries(vocabulary as Record).map(([cid, vs]) => ({ + id: cid, + type: 'select', + currentValue: currentConfig[cid] ?? vs[0], + options: vs.map(v => ({ value: v, name: v })), + })), + }) + return + } case 'session/cancel': if (parkedPromptId !== null) { const parked = parkedPromptId diff --git a/packages/support/acp-snapshot/tests/harness.spec.ts b/packages/support/acp-snapshot/tests/harness.spec.ts index 683d2aaf80..b0817a8d04 100644 --- a/packages/support/acp-snapshot/tests/harness.spec.ts +++ b/packages/support/acp-snapshot/tests/harness.spec.ts @@ -168,6 +168,8 @@ describe('runScenario', () => { [{ op: 'promptExpectError', text: 'x' }, /promptExpectError before newSession/], [{ op: 'promptAndCancel', text: 'x' }, /promptAndCancel before newSession/], [{ op: 'cancel' }, /cancel before newSession/], + [{ op: 'setConfigOption', configId: 'sandbox-mode', value: 'read-only' }, /setConfigOption before newSession/], + [{ op: 'setConfigOptionExpectError', configId: 'sandbox-mode', value: 'yolo' }, /setConfigOptionExpectError before newSession/], ] as [InputStep, RegExp][])('rejects %j before newSession', { timeout: 20_000 }, async (step, message) => { const { fixtureFile } = await scenario({}) await expect(runScenario( @@ -176,6 +178,53 @@ describe('runScenario', () => { )).rejects.toThrow(message) }) + it('setConfigOption switches a value and receives the complete refreshed option state', { timeout: 20_000 }, async () => { + const { fixtureFile } = await scenario({ + configOptions: { 'sandbox-mode': ['read-only', 'workspace-write'], 'approval-policy': ['ask', 'never'] }, + }) + const result = await runScenario( + { + steps: [...boot, + { op: 'setConfigOption', configId: 'sandbox-mode', value: 'workspace-write' }, + { op: 'setConfigOption', configId: 'approval-policy', value: 'never' }], + }, + { agent: AGENT, mode: 'replay', fixtureFile }, + ) + // Every set answers with the FULL state: the second response carries the + // first switch's value too — the complete-refreshed-state contract. + const frames = result.rawStdout.trim().split('\n').map(line => JSON.parse(line) as { result?: { configOptions?: { id: string; currentValue: string }[] } }) + const states = frames + .map(f => f.result?.configOptions) + .filter(options => options !== undefined) + .map(options => Object.fromEntries((options as { id: string; currentValue: string }[]).map(o => [o.id, o.currentValue]))) + expect(states).toEqual([ + { 'sandbox-mode': 'workspace-write', 'approval-policy': 'ask' }, + { 'sandbox-mode': 'workspace-write', 'approval-policy': 'never' }, + ]) + }) + + it('setConfigOptionExpectError swallows the rejection for unknown ids and out-of-vocabulary values', { timeout: 20_000 }, async () => { + const { fixtureFile } = await scenario({ configOptions: { 'sandbox-mode': ['read-only'] } }) + const result = await runScenario( + { + steps: [...boot, + { op: 'setConfigOptionExpectError', configId: 'sandbox-mode', value: 'yolo' }, + { op: 'setConfigOptionExpectError', configId: 'reasoning-effort', value: 'max' }], + }, + { agent: AGENT, mode: 'replay', fixtureFile }, + ) + expect(result.rawStdout).toContain('unknown sandbox-mode value yolo') + expect(result.rawStdout).toContain('unknown config option reasoning-effort') + }) + + it('setConfigOptionExpectError throws when the set unexpectedly succeeds', { timeout: 20_000 }, async () => { + const { fixtureFile } = await scenario({ configOptions: { 'sandbox-mode': ['read-only'] } }) + await expect(runScenario( + { steps: [...boot, { op: 'setConfigOptionExpectError', configId: 'sandbox-mode', value: 'read-only' }] }, + { agent: AGENT, mode: 'replay', fixtureFile }, + )).rejects.toThrow(/expected set_config_option to be rejected/) + }) + it('rejects an unknown input op', { timeout: 20_000 }, async () => { const { fixtureFile } = await scenario({}) const bogus = { op: 'reticulate' } as unknown as InputStep diff --git a/packages/ui/acp/README.md b/packages/ui/acp/README.md index 49abfbff6a..0820db0cb5 100644 --- a/packages/ui/acp/README.md +++ b/packages/ui/acp/README.md @@ -31,12 +31,11 @@ The `initialize` handshake reports a fixed server identity (`agentInfo: { name: | `session/cancel` | `agent.cancel()` | the queue-aware cancel: aborts a running step, clears queued + steering work, and drops a turn about to start, then settles the prompt `cancelled` — for ONLY that session (a cancel never touches another session's stream or prompt) | | `session/update` | `session/event` | `agent_message_chunk` (text-delta), `agent_thought_chunk` (reasoning-delta), `user_message_chunk` (load replay), `tool_call`/`tool_call_update` (the render intent — a `card`-tagged `ToolCallView`/`ToolResultView` — owned by the TOOL via `presentCall`/`presentResult`, which the bridge switches on to build the wire shape — see Tool-call presentation) | | `elicitation/create` | `ctx.userInteraction.ask()` | maps `ask_user_question` questions to ACP form elicitations; option descriptions are shown in enum titles, `multi_select` uses ACP array enums, optionless requests use a required `custom` field, and a non-empty custom answer overrides any selected choice | +| `session/request_permission` | `approval/request` listener | the bridge is the [`ctx.approval`](../../approval/approval/README.md) answerer for the agents it owns: an `ask` (a hook or `tools/pre-execute` plugin) becomes an editor prompt attached to the streamed tool call, offering one-shot `allow_once`/`reject_once` options only; a foreign or call-less request delegates down the answerer chain (fail-closed `unavailable` default). See "Permission prompts" | ## Multi-session -The bridge multiplexes N sessions over one connection. Live sessions are held in a `Map` (forward) with a `WeakMap` reverse map so `agent/*` events — which carry only the `Agent` — demux in O(1). Every `session/event` and `agent/status` is routed strictly to its owning record, so concurrent sessions never cross-settle or interleave their `session/update` notifications. State is per session: one in-flight prompt each, `session/cancel` aborts and settles only its own agent/prompt, and disposal drains every live session in parallel to quiescence. (Per-session *permission* ownership is reserved for the deferred permission gate — `TODO(rfc010-permission-gate)`.) - -Background-task isolation rides on `dsh-tool-bash`: bash task ids are global and predictable, so each task carries an opaque owner token — the owning agent's `session.header.id` — stored on the task inside the executor (`dsh-bash`'s `ownerOf(id)` seam). `bash_output`/`bash_kill` reject a task whose token differs from the caller's session token, so one session's agent can't read or kill another's task. Ownership is by session TOKEN, not `Agent` object identity — a different `Agent` object on the same session may access the task — and because the token lives on the executor's task it survives a `tool-bash` HMR reload. +The bridge multiplexes N sessions over one connection. Live sessions are held in a `Map` (forward) with a `WeakMap` reverse map so `agent/*` events — which carry only the `Agent` — demux in O(1). Every `session/event` and `agent/status` is routed strictly to its owning record, so concurrent sessions never cross-settle or interleave their `session/update` notifications. State is per session: one in-flight prompt each, `session/cancel` aborts and settles only its own agent/prompt, and disposal drains every live session in parallel to quiescence. Permission prompts follow the same ownership: the `approval/request` answerer resolves the owning session through the reverse map and prompts only there. ## Per-session cwd @@ -67,13 +66,16 @@ When the client does NOT advertise the capability, none of the `_meta`/terminal A `session/prompt` resolves (or rejects) exactly once, keyed off the canonical session log (the `session/event` stream). One listener captures the prompt's owning turn from the log's `turn/start` and settles on the matching `turn/end` — the durable boundary event (`closeTurn` appends it unconditionally; there is no `agent/*` turn mirror). A prompt settles only on ITS OWN turn (`inflight.turn === turn/end.turn`), so a stale `turn/end` for a previously-cancelled turn whose end arrives late can never settle the wrong prompt. A turn that ends `error` REJECTS the RPC with an internal error carrying the failure message (ACP has no error stop reason); every other reason resolves via the codec. As a fallback, when the agent settles to `idle`/`disposed` with a prompt still pending — e.g. a peer `session/event` listener registered before the bridge threw and starved the bridge's listener — an `agent/status` handler reconciles the prompt from the log (the owning turn's `turn/end`, or `cancelled` if the turn was torn down without one). An empty/whitespace prompt is rejected up front — it would queue no work, so no turn would start and the RPC would hang. +## Permission prompts + +The bridge registers an `approval/request` waterfall listener — the ACP answerer of the [approval seam](../../approval/approval/README.md). When `ctx.approval` routes an `ask` for an agent the bridge owns, the listener resolves the owning session through the reverse map and issues `session/request_permission` with the request's `callId` as the `toolCall` reference (the editor attaches the prompt to the already-streamed call) and the one-shot options `allow_once`/`reject_once` (`allow_always` is deferred to the approval RFC's grant-storage question). Outcomes map `allow-once → allowed-once`, any other selection → `rejected` (an unknown optionId from a non-conforming client never grants), client `cancelled → cancelled`. A request for an agent the bridge does NOT own — or one without a `callId` to attach to — delegates via `next()` so another answerer or the seam's fail-closed `unavailable` default takes it. A rejected `requestPermission` RPC (client gone mid-prompt) propagates to the ApprovalService, which contains it as `unavailable`. Whether a call asks at all is policy — a hook or `tools/pre-execute` plugin returning `ask` — never the bridge's own judgment; without such policy, tools keep the executor's full authority. + ## Disposal & disconnect Teardown reaches quiescence: for EVERY live session settle any pending prompt as `cancelled`, then run that session's [`AgentHandle`](../../core/agent/README.md) `dispose()` — which stops the loop (sets `disposed` + aborts the in-flight step), `await`s the loop's exit (the final `turn/end` + `session/flush` are captured while the session is still attached), unregisters the agent, and removes its session from the store. A turn cut off mid-flight by teardown ends with reason `disposed` (not `aborted` — `dispose()` uses the disposed path, not `session/cancel`'s queue-aware `cancel()`). The per-session disposes run in parallel. The same teardown runs on a **client disconnect** (`conn.closed` resolves when the editor quits / the transport EOFs), so a vanished client never leaves an orphaned running — or idled-but-still-registered — agent whose `session/update` writes are silently swallowed. The two paths are idempotent and memoized (the first clears the `sessions` map; a second caller awaits the same teardown promise). ## Known limitations (tracked TODOs) -- **`TODO(rfc010-permission-gate)`** — the `tools/pre-execute` permission gate (`session/request_permission`) is NOT implemented; tools run with the executor's full authority. The `agent→sessionId` reverse map is in place so the gate can route a permission request (which receives only `exec.agent`) back to its originating session. [ACP support](../../../docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md) and [ACP multi-session](../../../docs/rfc/proposed/feature/2026-06-14-acp-multi-session.md) stay `proposed` until the gate (and per-session permission ownership) land. - **`additionalDirectories`** — rejected. A session operates in its single `cwd` (see Per-session cwd); widening the tool/filesystem scope to extra roots is a separate sandbox concern, not yet implemented. ## stdout is the protocol diff --git a/packages/ui/acp/acp-feature-support.md b/packages/ui/acp/acp-feature-support.md index 6162fae137..ff27c3f2d5 100644 --- a/packages/ui/acp/acp-feature-support.md +++ b/packages/ui/acp/acp-feature-support.md @@ -10,7 +10,7 @@ Legend: ✅ supported · ⚠️ partial / fallback · ❌ not yet · — n/a. Th ## At a glance -The bridge implements the **core prompt-turn loop** for N concurrent sessions: initialize, session new/load, prompt, cancel, streamed assistant/thought chunks, tool-call rendering (including Zed terminal cards), and resumable session replay. The largest **unbuilt** areas are the **permission gate** (`session/request_permission`), **MCP passthrough**, **session modes / config options / model selection**, **slash commands**, and **agent plans** — all of which both reference adapters ship — plus the client **filesystem** and **terminal** method families (which the adapters mostly do NOT drive either — see rows 43-49). See [Gap summary](#gap-summary). +The bridge implements the **core prompt-turn loop** for N concurrent sessions: initialize, session new/load, prompt, cancel, streamed assistant/thought chunks, tool-call rendering (including Zed terminal cards), and resumable session replay. The largest **unbuilt** areas are **MCP passthrough**, **session modes / config options / model selection**, **slash commands**, and **agent plans** — all of which both reference adapters ship — plus the client **filesystem** and **terminal** method families (which the adapters mostly do NOT drive either — see rows 43-49). See [Gap summary](#gap-summary). ## 1. Agent methods (client → agent) @@ -25,8 +25,8 @@ The bridge implements the **core prompt-turn loop** for N concurrent sessions: i | `session/close` | S | ❌ | ✅ | ✅ | No `session/close` handler — the SDK dispatch returns `method_not_found`. The bridge tears sessions down on client disconnect / Cordis disposal (cross-cutting, see [§8](#8-cross-cutting)), but that is not the on-demand per-session method. | | `session/prompt` | S | ✅ | ✅ | ✅ | Maps to `agent.send`; one in-flight prompt per session; settles on the owning turn's end. | | `session/cancel` | S | ✅ | ✅ | ✅ | Queue-aware `agent.cancel`; settles the in-flight prompt `cancelled`, scoped to the one session. | -| `session/set_mode` | S | ❌ | ✅ | ✅ | Session modes not modeled (see [§6 Modes](#6-session-modes--config-options--models)). | -| `session/set_config_option` | S | ❌ | ✅ | ✅ | Config options not modeled. | +| `session/set_mode` | S | ❌ | ✅ | ✅ | Session modes deliberately skipped: config options are the spec's replacement (modes are slated for removal in ACP v2), and one mode list cannot carry the two orthogonal knobs (see [§6](#6-session-modes--config-options--models)). | +| `session/set_config_option` | S | ❌ | ✅ | ✅ | Config options not modeled yet — the sandbox RFC's per-session mode switching stages them ([sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)). | | model selection | S | ❌ | ✅ | ✅ | No distinct stable `session/set_model` — model is the `model`-category `session/set_config_option`. The bridge fixes the model per-bridge via config; no runtime switch. Codex still uses the legacy `unstable_setSessionModel` ext method. | | `session/list` | S | ❌ | ✅ | ✅ | Gated by `sessionCapabilities.list`. The harness HAS `sessionPersistence.list()` (used internally for load-cwd validation) but does not expose it over ACP. | | `session/delete` | S | ❌ | ✅ | ✅ | Gated by `sessionCapabilities.delete`. | @@ -39,7 +39,7 @@ These are capabilities the bridge would *drive* on the editor. The harness runs | Method | Stable | Bridge | Claude | Codex | Notes | |---|---|---|---|---|---| | `session/update` | S | ✅ | ✅ | ✅ | The bridge's primary output channel (see [§4](#4-sessionupdate-variants)). | -| `session/request_permission` | S | ❌ | ✅ | ✅ | **The biggest gap.** Tools run with the executor's full authority; no user authorization round-trip. The `agent→sessionId` reverse map is already in place to route a future permission request. Tracked `TODO(rfc010-permission-gate)`. | +| `session/request_permission` | S | ✅ | ✅ | ✅ | The bridge answers the [`ctx.approval`](../../approval/approval/README.md) seam for the agents it owns: an `ask` from a hook/plugin becomes an editor prompt attached to the streamed tool call, one-shot `allow_once`/`reject_once` options only. Whether a call asks is policy (nothing asks by default); `allow_always` is deferred (grant storage). | | `fs/read_text_file` | S | ❌ | ✅ | ❌ | The harness reads files directly (it does not see the editor's unsaved buffer state). Claude delegates; Codex does not. | | `fs/write_text_file` | S | ❌ | ✅ | ❌ | Same — direct writes, no editor delegation. | | `terminal/create` | S | ❌ | ❌ | ❌ | Neither reference adapter drives the client terminal API either — both, like the bridge, render shell output as tool-call content + a `_meta` channel (see [§5 Terminal](#terminal-rendering)). | @@ -86,7 +86,7 @@ These are capabilities the bridge would *drive* on the editor. The harness runs | `plan` | S | ❌ | ✅ | ✅ | No agent plan emitted. Both adapters emit real plan entries (Codex's `CodexEventHandler.updatePlan` maps `turn/plan/updated` → `{ sessionUpdate: 'plan', entries }`). | | `available_commands_update` | S | ❌ | ✅ | ✅ | No slash commands advertised. | | `current_mode_update` | S | ❌ | ✅ | ✅ | No session modes. | -| `config_option_update` | S | ❌ | ✅ | ✅ | No config options. | +| `config_option_update` | S | ❌ | ✅ | ✅ | No config options yet. | | `usage_update` | S | ❌ | ✅ | ✅ | Token/cost reporting not surfaced (the harness records token usage internally on `assistant/message`). | | `session_info_update` | S | ❌ | ⚠️ | ⚠️ | Session title/metadata not pushed. | @@ -111,7 +111,7 @@ Tool-call presentation is **owned by each tool** (`presentCall` / `presentResult ## 6. Session modes / config options / models -❌ None modeled. Both reference adapters ship modes (Claude: a "plan" auto-mode; Codex: read-only / agent / agent-full-access mapping to its approval+sandbox policy), the newer config-option surface, and runtime model selection. The harness fixes the model per-bridge via `AcpConfig.model`. These are coupled to the unbuilt **permission gate** (a mode often selects an approval policy), so they are natural follow-ups to it. +Session modes and config options are not modeled yet: the sandbox RFC's per-session mode switching ([sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)) stages config options as the surface (modes are slated for removal in ACP v2, and one mode list cannot carry two orthogonal knobs). Runtime model selection is also not modeled — the harness fixes the model per-bridge via `AcpConfig.model` (both reference adapters ship a model selector). ## 7. Content blocks @@ -140,15 +140,14 @@ The bridge rejects unsupported prompt blocks rather than silently dropping them Ranked by how commonly the reference adapters ship them and how much UX they unlock: -1. **Permission gate** — `session/request_permission` + permission options. Tracked `TODO(rfc010-permission-gate)`; the reverse map is already wired and shared with `ask_user_question` routing. Foundational, and a prerequisite for modes. -2. **Session lifecycle** — `session/list` + `session/delete` (the persistence layer already lists), then `session/resume` / `session/close`. -3. **Modes / config options / model selection** — coupled to the permission gate. -4. **Agent plan** (`sessionUpdate: 'plan'`) — surface the loop's plan as structured entries. -5. **Slash commands** (`available_commands_update`). -6. **MCP passthrough** (`mcpServers` on `session/new` + `mcpCapabilities`). -7. **Richer prompt content** — image / embedded `resource` blocks (needs a multimodal model path). -9. **Usage reporting** (`usage_update`) — the harness already records token usage internally (on `assistant/message`). -10. **Editor filesystem delegation** (`fs/read_text_file` / `fs/write_text_file`) — lets the agent see unsaved buffers; lower priority since the harness has direct disk access. +1. **Session lifecycle** — `session/list` + `session/delete` (the persistence layer already lists), then `session/resume` / `session/close`. +2. **Modes / config options / model selection** — the permission round-trip landed with the approval seam; the config surface (`sandbox-mode`/`approval-policy` options) is the sandbox RFC's staged config phase. +3. **Agent plan** (`sessionUpdate: 'plan'`) — surface the loop's plan as structured entries. +4. **Slash commands** (`available_commands_update`). +5. **MCP passthrough** (`mcpServers` on `session/new` + `mcpCapabilities`). +6. **Richer prompt content** — image / embedded `resource` blocks (needs a multimodal model path). +7. **Usage reporting** (`usage_update`) — the harness already records token usage internally (on `assistant/message`). +8. **Editor filesystem delegation** (`fs/read_text_file` / `fs/write_text_file`) — lets the agent see unsaved buffers; lower priority since the harness has direct disk access. ## Out of scope diff --git a/packages/ui/acp/package.json b/packages/ui/acp/package.json index 4ebc8485ce..8c9f731363 100644 --- a/packages/ui/acp/package.json +++ b/packages/ui/acp/package.json @@ -28,6 +28,7 @@ }, "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", + "@deepseek-ai/dsh-approval": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-session": "^0.0.1", "@deepseek-ai/dsh-session-persistence": "^0.0.1", @@ -38,9 +39,12 @@ "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-agent-loop": "workspace:^", + "@deepseek-ai/dsh-approval": "workspace:^", + "@deepseek-ai/dsh-bash": "workspace:^", "@deepseek-ai/dsh-bash-local": "workspace:^", "@deepseek-ai/dsh-fs-local": "workspace:^", "@deepseek-ai/dsh-fs-policy": "workspace:^", + "@deepseek-ai/dsh-invariants": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", "@deepseek-ai/dsh-session-persistence": "workspace:^", diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index 928ab7da77..5959f0f9c4 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -22,8 +22,10 @@ * `agent→sessionId` reverse map for O(1) demux of `agent/*` events; every * `session/event` and `agent/*` event is routed strictly to its owning session * record, so two sessions streaming at once never interleave their - * `session/update` notifications. The `tools/pre-execute` permission gate is - * deferred — see the TODO(rfc010-permission-gate) note below. + * `session/update` notifications. Permission prompts ride the same ownership + * map: the bridge answers `approval/request` for its own agents over + * `session/request_permission` (see the approval answerer below) — whether a + * call ASKS is policy (a hook or plugin returning `ask`), not the bridge's. * * stdout is the protocol: this plugin must run in an example that loads NO * stdout logger (the console logger writes to stdout and would corrupt the @@ -74,6 +76,9 @@ import type { ToolCallView, ToolRegistry, ToolResultView, TerminalResultView } f // Side-effect type import: declaration-merges `ctx.sessionPersistence` onto // Context (the bridge injects it and reads `list()` for load cwd validation). import type {} from '@deepseek-ai/dsh-session-persistence' +// Side-effect type import: declaration-merges the `approval/request` waterfall +// the bridge answers for its own agents (see the approval answerer below). +import type {} from '@deepseek-ai/dsh-approval' import { UserInteractionError, type AskUserQuestionAnswer, @@ -555,6 +560,37 @@ export function apply(ctx: Context, config: AcpConfig): void { if (status === 'idle' || status === 'disposed') settleFromLog(rec) }) + // --- Approval answerer ----------------------------------------------------- + // The bridge is the approval channel for the agents it owns: an `ask` routed + // through `ctx.approval` (dsh-tools today, sandbox escalation later) becomes + // an editor permission prompt attached to the already-streamed tool call. The + // listener occupies the single decision slot ONLY for its own agents — a + // foreign or call-less request delegates via next() so another answerer (or + // the fail-closed `unavailable` default) takes the question. A rejected + // `requestPermission` (client gone, bridge torn down) propagates and the + // ApprovalService contains it as `unavailable`. Options are one-shot only: + // allow_always is a grant-storage design the approval RFC defers, so the + // prompt never offers a durable grant the harness could not honor. + ctx.on('approval/request', (req, next) => { + const sessionId = bySession.get(req.agent) + // The protocol requires `toolCall` (the prompt renders attached to it), so + // a request without a callId has nothing to attach to — delegate. + if (sessionId === undefined || req.callId === undefined) return next() + return conn.requestPermission({ + sessionId, + toolCall: { toolCallId: req.callId }, + options: [ + { optionId: 'allow-once', name: 'Allow once', kind: 'allow_once' }, + { optionId: 'reject-once', name: 'Reject', kind: 'reject_once' }, + ], + }).then(({ outcome }) => { + if (outcome.outcome === 'cancelled') return 'cancelled' + // Only the two advertised options exist; an unknown optionId from a + // non-conforming client counts as a rejection, never a grant. + return outcome.optionId === 'allow-once' ? 'allowed-once' : 'rejected' + }) + }) + // --- The ACP Agent method surface ----------------------------------------- const makeAgent = (connection: AgentSideConnection): AcpAgent => { @@ -765,6 +801,7 @@ export function apply(ctx: Context, config: AcpConfig): void { settlePrompt(rec, 'cancelled') return Promise.resolve() }, + } } diff --git a/packages/ui/acp/tests/approval.spec.ts b/packages/ui/acp/tests/approval.spec.ts new file mode 100644 index 0000000000..84b816067c --- /dev/null +++ b/packages/ui/acp/tests/approval.spec.ts @@ -0,0 +1,108 @@ +import { afterEach, beforeEach, describe, expect, it } from 'vitest' +import { mkdtemp, rm } from 'node:fs/promises' +import { tmpdir } from 'node:os' +import { join } from 'node:path' +import { PROTOCOL_VERSION } from '@agentclientprotocol/sdk' +import { CallId } from '@deepseek-ai/dsh-llm' +import { AgentId, type Agent } from '@deepseek-ai/dsh-agent' +import ApprovalService, { type ApprovalRequest } from '@deepseek-ai/dsh-approval' +import { makeBridgeHarness, type BridgeHarness } from './harness.ts' + +/** + * The bridge's `approval/request` answerer: an ask for an agent the bridge + * owns becomes a `session/request_permission` prompt attached to the tool + * call; foreign or call-less requests delegate down to the fail-closed + * default. Driven through `ctx.approval` — the same path dsh-tools' ask + * routing takes — against the harness's scriptable client. + */ +describe('acp bridge — approval answerer', () => { + let storageDir: string + let harness: BridgeHarness | undefined + + beforeEach(async () => { storageDir = await mkdtemp(join(tmpdir(), 'acp-approval-')) }) + afterEach(async () => { + await harness?.dispose() + harness = undefined + await rm(storageDir, { recursive: true, force: true }) + }) + + async function ownedAgentRequest( + h: BridgeHarness, overrides: Partial = {}, + ): Promise<{ agent: Agent; request: ApprovalRequest }> { + await h.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + const agent = h.ctx.agents.get(AgentId(sessionId)) + if (agent === undefined) throw new Error('newSession created no agent') + // In production an ask always fires mid-turn (tool execution); open one so + // request()'s turn-enclosure precondition holds for the direct drive below. + agent.session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) + return { agent, request: { agent, toolName: 'echo', callId: CallId('call-9'), ...overrides } } + } + + it('prompts the editor for an owned agent and maps allow-once → allowed-once', async () => { + harness = await makeBridgeHarness({ storageDir }) + await harness.ctx.plugin(ApprovalService) + harness.onPermission = () => ({ outcome: { outcome: 'selected', optionId: 'allow-once' } }) + + const { request } = await ownedAgentRequest(harness) + await expect(harness.ctx.approval.request(request)).resolves.toBe('allowed-once') + + expect(harness.permissionRequests).toHaveLength(1) + const wire = harness.permissionRequests[0] + expect(wire?.toolCall).toEqual({ toolCallId: 'call-9' }) + expect(wire?.options.map(o => ({ optionId: o.optionId, kind: o.kind }))).toEqual([ + { optionId: 'allow-once', kind: 'allow_once' }, + { optionId: 'reject-once', kind: 'reject_once' }, + ]) + }) + + it('maps reject-once → rejected', async () => { + harness = await makeBridgeHarness({ storageDir }) + await harness.ctx.plugin(ApprovalService) + harness.onPermission = () => ({ outcome: { outcome: 'selected', optionId: 'reject-once' } }) + + const { request } = await ownedAgentRequest(harness) + await expect(harness.ctx.approval.request(request)).resolves.toBe('rejected') + }) + + it('maps a client cancellation → cancelled', async () => { + harness = await makeBridgeHarness({ storageDir }) + await harness.ctx.plugin(ApprovalService) + harness.onPermission = () => ({ outcome: { outcome: 'cancelled' } }) + + const { request } = await ownedAgentRequest(harness) + await expect(harness.ctx.approval.request(request)).resolves.toBe('cancelled') + }) + + it('treats an unknown optionId from a non-conforming client as a rejection, never a grant', async () => { + harness = await makeBridgeHarness({ storageDir }) + await harness.ctx.plugin(ApprovalService) + harness.onPermission = () => ({ outcome: { outcome: 'selected', optionId: 'allow-always-i-insist' } }) + + const { request } = await ownedAgentRequest(harness) + await expect(harness.ctx.approval.request(request)).resolves.toBe('rejected') + }) + + it('delegates a foreign agent down to the fail-closed default', async () => { + harness = await makeBridgeHarness({ storageDir }) + await harness.ctx.plugin(ApprovalService) + harness.onPermission = () => ({ outcome: { outcome: 'selected', optionId: 'allow-once' } }) + + // Not created through the bridge: no bySession entry, so the answerer must + // call next() — nobody else answers, so the seam fails closed. + const foreign = { session: { events: [{ type: 'turn/start' }], append: () => ({}) } } as unknown as Agent + await expect(harness.ctx.approval.request({ agent: foreign, toolName: 'echo', callId: CallId('c') })) + .resolves.toBe('unavailable') + expect(harness.permissionRequests).toHaveLength(0) + }) + + it('delegates a call-less request — the protocol prompt must attach to a tool call', async () => { + harness = await makeBridgeHarness({ storageDir }) + await harness.ctx.plugin(ApprovalService) + harness.onPermission = () => ({ outcome: { outcome: 'selected', optionId: 'allow-once' } }) + + const { agent } = await ownedAgentRequest(harness) + await expect(harness.ctx.approval.request({ agent, toolName: 'echo' })).resolves.toBe('unavailable') + expect(harness.permissionRequests).toHaveLength(0) + }) +}) diff --git a/packages/ui/acp/tsconfig.json b/packages/ui/acp/tsconfig.json index 9c2358c455..7c80e7459c 100644 --- a/packages/ui/acp/tsconfig.json +++ b/packages/ui/acp/tsconfig.json @@ -34,6 +34,12 @@ }, { "path": "../../session-persistence/session-persistence" + }, + { + "path": "../../approval/approval" + }, + { + "path": "../../bash/bash" } ] } diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 4b6542bbe0..bef41d9bdf 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -985,6 +985,12 @@ importers: '@deepseek-ai/dsh-agent-loop': specifier: workspace:^ version: link:../../core/agent-loop + '@deepseek-ai/dsh-approval': + specifier: workspace:^ + version: link:../../approval/approval + '@deepseek-ai/dsh-bash': + specifier: workspace:^ + version: link:../../bash/bash '@deepseek-ai/dsh-bash-local': specifier: workspace:^ version: link:../../bash/bash-local @@ -994,6 +1000,9 @@ importers: '@deepseek-ai/dsh-fs-policy': specifier: workspace:^ version: link:../../fs/fs-policy + '@deepseek-ai/dsh-invariants': + specifier: workspace:^ + version: link:../../support/invariants '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 5061b12ddb..be6d8b7121 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -164,7 +164,7 @@ const SERVICE_ROLES: ServiceRole[] = [ pkg: 'approval', title: 'Approval seam', mode: 'seam', - implementations: [], + implementations: ['acp'], consumers: ['tools'], note: 'One-shot permission decisions dispatched over the `approval/request` waterfall; answerers are listeners (the ACP bridge for its own agents), absence fails closed to `unavailable`.', }, From 7b8c3a9b40b5e259484a627ee22284f8f710b7a1 Mon Sep 17 00:00:00 2001 From: kingwl Date: Thu, 9 Jul 2026 15:42:37 +0800 Subject: [PATCH 169/232] feat(sandbox): the confinement seam and the per-platform native runner chains MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ctx.sandbox (dsh-sandbox): confine(argv, policy) returns the argv to spawn instead — wrapped so the process and its children run confined — plus the enforcement completeness and the backend denial/runner-failure dialects; no usable backend throws the fail-closed SANDBOX_UNAVAILABLE. Policy rides per call. dsh-sandbox-local selects by platform and caches the verdict: multi-candidate chains probe FUNCTIONALLY in preference order (Linux: bwrap → the registry-installed node-addon-landlock-run launcher), a sole candidate is selected unprobed (darwin: sandbox-exec/Seatbelt) and fails closed at execution via runnerFailureSignatures; win32 is a reserved empty chain. Profile parity is honest per backend (documented temp-area and ABI differences; enforcement full|partial is a structured result fact). CI: the sandbox-e2e matrix proves real-kernel confinement per rung (bwrap, Landlock per architecture through the registry-installed launcher, Seatbelt), failing on a silent all-skip; the packed-install rehearsal installs the launcher family from the registry and asserts the binary executable apart from kernel enforcement. --- .github/workflows/sandbox.yml | 124 +++++ docs/capability-seams.md | 6 + docs/config-catalog.md | 37 ++ docs/cordis-catalog/services.md | 16 + docs/module-graph.md | 9 + knip.json | 5 + packages/README.md | 3 +- packages/sandbox/README.md | 12 + packages/sandbox/sandbox-local/README.md | 18 + packages/sandbox/sandbox-local/package.json | 38 ++ packages/sandbox/sandbox-local/src/index.ts | 455 ++++++++++++++++++ .../sandbox/sandbox-local/tests/bwrap.e2e.ts | 118 +++++ .../sandbox-local/tests/landlock.e2e.ts | 118 +++++ .../sandbox/sandbox-local/tests/local.spec.ts | 349 ++++++++++++++ .../sandbox-local/tests/packed-install.e2e.ts | 173 +++++++ .../sandbox-local/tests/seatbelt.e2e.ts | 120 +++++ packages/sandbox/sandbox-local/tsconfig.json | 27 ++ packages/sandbox/sandbox/README.md | 11 + packages/sandbox/sandbox/package.json | 32 ++ packages/sandbox/sandbox/src/index.ts | 199 ++++++++ .../sandbox/sandbox/tests/vocabulary.spec.ts | 35 ++ packages/sandbox/sandbox/tsconfig.json | 21 + pnpm-lock.yaml | 55 +++ pnpm-workspace.yaml | 9 + scripts/doc-budgets.manifest.json | 2 +- scripts/gen-doc-graphs.ts | 10 + tsconfig.base.json | 1 + tsconfig.build.json | 2 + tsconfig.json | 2 + tsdown.config.ts | 3 +- 30 files changed, 2007 insertions(+), 3 deletions(-) create mode 100644 .github/workflows/sandbox.yml create mode 100644 packages/sandbox/README.md create mode 100644 packages/sandbox/sandbox-local/README.md create mode 100644 packages/sandbox/sandbox-local/package.json create mode 100644 packages/sandbox/sandbox-local/src/index.ts create mode 100644 packages/sandbox/sandbox-local/tests/bwrap.e2e.ts create mode 100644 packages/sandbox/sandbox-local/tests/landlock.e2e.ts create mode 100644 packages/sandbox/sandbox-local/tests/local.spec.ts create mode 100644 packages/sandbox/sandbox-local/tests/packed-install.e2e.ts create mode 100644 packages/sandbox/sandbox-local/tests/seatbelt.e2e.ts create mode 100644 packages/sandbox/sandbox-local/tsconfig.json create mode 100644 packages/sandbox/sandbox/README.md create mode 100644 packages/sandbox/sandbox/package.json create mode 100644 packages/sandbox/sandbox/src/index.ts create mode 100644 packages/sandbox/sandbox/tests/vocabulary.spec.ts create mode 100644 packages/sandbox/sandbox/tsconfig.json diff --git a/.github/workflows/sandbox.yml b/.github/workflows/sandbox.yml new file mode 100644 index 0000000000..561d74b587 --- /dev/null +++ b/.github/workflows/sandbox.yml @@ -0,0 +1,124 @@ +# Sandbox CI: the keyless real-kernel confinement proofs. A separate workflow +# from ci.yml because the axis is different — these jobs fan out over +# OS×runner (kernel capabilities), not node versions. The Landlock launcher +# arrives from the registry with `pnpm install` (the npm package family +# `node-addon-landlock-run`, built and released from its own repository), so +# these legs exercise the true consumer path — nothing is compiled here. +name: Sandbox + +on: + push: + branches: [main, master] + pull_request: + +concurrency: + group: ${{ github.workflow }}-${{ github.ref }} + cancel-in-progress: true + +permissions: + contents: read + +jobs: + # Keyless real-kernel sandbox proofs (sandbox RFC § Testing): each ladder + # rung is only provable on a host where it enforces, so this job fans out + # an OS×runner matrix — bwrap and Landlock on Linux (separate legs: the + # Landlock files force the bwrap rung off, so each leg proves exactly one + # rung; Landlock twice, once per architecture, each confining through the + # registry-installed launcher), Seatbelt on macOS (sandbox-exec ships with + # the OS). One node + # version only: kernel confinement does not vary by node, and ci.yml's + # node matrix already covers the node axis. + # + # The e2e files self-skip where their runner is absent, so a leg that lost + # its runner (no bwrap, kernel without Landlock, macOS without + # sandbox-exec) would otherwise pass as a false green — the same trap + # e2e.yml's key preflight guards against. Each leg therefore asserts BOTH + # its platform files actually ran: `Test Files 2 passed (2)`, no skips. + sandbox-e2e: + strategy: + fail-fast: false + matrix: + include: + - os: ubuntu-latest + runner: bwrap + - os: ubuntu-24.04 + runner: landlock + - os: ubuntu-24.04-arm + runner: landlock + - os: macos-latest + runner: seatbelt + name: sandbox e2e (${{ matrix.runner }}, ${{ matrix.os }}) + runs-on: ${{ matrix.os }} + timeout-minutes: 20 + steps: + - uses: actions/checkout@v6 + + - uses: actions/setup-node@v6 + with: + node-version: 24 + + - name: Enable corepack (pnpm) + run: corepack enable + + - name: Install (immutable) + run: pnpm install --frozen-lockfile + + # The bwrap rung needs bubblewrap on PATH and unprivileged user + # namespaces. Ubuntu 24.04 gates the latter behind an AppArmor knob; + # lift it best-effort — on images where the knob is absent the + # functional probe (and the run-guard below) is the arbiter anyway. + - name: Install bubblewrap (unrestrict userns) + if: matrix.runner == 'bwrap' + run: | + sudo apt-get update -q + sudo apt-get install -yq bubblewrap + sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0 \ + || echo "apparmor userns knob absent — the functional probe decides" + + # The unit suite runs on ubuntu in `checks`; this is the one darwin leg + # in the workflow, so run it here too — the platform-dependent unit + # expectations (Seatbelt path canonicalization: /tmp IS /private/tmp) + # take their darwin branch only on this runner. + - name: Unit tests (darwin parity) + if: matrix.runner == 'seatbelt' + run: pnpm run test + + - name: Sandbox e2e (real kernel confinement, world-verified) + # NO_COLOR: vitest force-enables ANSI color under GITHUB_ACTIONS even + # without a TTY, which would thread escape codes through the summary + # line the run-guard greps. + env: + NO_COLOR: 1 + run: | + set -u +e -o pipefail + out=$(pnpm exec vitest run --config vitest.e2e.config.ts \ + packages/sandbox/sandbox-local/tests/${{ matrix.runner }}.e2e.ts \ + packages/bash/bash-sandbox/tests/${{ matrix.runner }}.e2e.ts 2>&1); status=$? + echo "$out" + [ "$status" -eq 0 ] + # Both platform files must have RUN — a self-skip (runner missing on + # the very platform that exists to prove it) is a failure, not a pass. + echo "$out" | grep -qE 'Test Files[[:space:]]+2 passed \(2\)' + + # Publish-path rehearsal, Landlock legs only (the pack gates need built + # lib/). The e2e packs the workspace closure, installs the tarballs + # into a throwaway consumer — npm pulling `node-addon-landlock-run` + # and its platform package from the registry, the true consumer path — + # and confines through the INSTALLED launcher, asserting it executable + # apart (a mode-stripped binary must not masquerade as a non-enforcing + # kernel). Same no-silent-skip guard as above. + - name: Build packages (lib/ for the pack rehearsal) + if: matrix.runner == 'landlock' + run: pnpm run build + + - name: Packed-distribution e2e (pack → install → confine) + if: matrix.runner == 'landlock' + env: + NO_COLOR: 1 + run: | + set -u +e -o pipefail + out=$(pnpm exec vitest run --config vitest.e2e.config.ts \ + packages/sandbox/sandbox-local/tests/packed-install.e2e.ts 2>&1); status=$? + echo "$out" + [ "$status" -eq 0 ] + echo "$out" | grep -qE 'Test Files[[:space:]]+1 passed \(1\)' diff --git a/docs/capability-seams.md b/docs/capability-seams.md index abddc73ed2..8dac9fbfd6 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -46,6 +46,9 @@ flowchart LR pkg_bash_local["bash-local"] pkg_hooks_claude["hooks-claude"] pkg_hooks_codex["hooks-codex"] + pkg_sandbox["sandbox"] + svc_sandbox["ctx.sandbox
Process-sandbox seam"] + pkg_sandbox_local["sandbox-local"] pkg_approval["approval"] svc_approval["ctx.approval
Approval seam"] pkg_code_runtime["code-runtime"] @@ -90,6 +93,8 @@ flowchart LR pkg_llm_deepseek --> svc_llm pkg_llm_pi_ai --> svc_llm pkg_llm_replay --> svc_llm + pkg_sandbox --> svc_sandbox + pkg_sandbox_local --> svc_sandbox pkg_session --> svc_sessions pkg_session_persistence --> svc_sessionPersistence pkg_session_persistence_jsonl --> svc_sessionPersistence @@ -165,6 +170,7 @@ flowchart LR | `ctx.agents` | `core` | [`agent`](../packages/core/agent) | - | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp), [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`stdio-agent`](../packages/ui/stdio-agent), [`invariants`](../packages/support/invariants) | - | Owns live Agent handles and the create/resume factory seam. | | `ctx.agentLoop` | `bundle` | [`agent-loop`](../packages/core/agent-loop) | - | [`agent-core`](../packages/core/agent-core) | - | The one concrete loop plugin; extension packages depend on dsh-agent events and services, not on this package. | | `ctx.bash` | `seam` | [`bash`](../packages/bash/bash) | [`bash-local`](../packages/bash/bash-local) | [`tool-bash`](../packages/bash/tool-bash), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | - | The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors can replace bash-local. | +| `ctx.sandbox` | `seam` | [`sandbox`](../packages/sandbox/sandbox) | [`sandbox-local`](../packages/sandbox/sandbox-local) | - | - | Consumers hand over the exact argv they are about to spawn; same-world backends wrap it under a per-call policy and report enforcement. | | `ctx.approval` | `seam` | [`approval`](../packages/approval/approval) | [`acp`](../packages/ui/acp) | [`tools`](../packages/core/tools) | - | One-shot permission decisions dispatched over the `approval/request` waterfall; answerers are listeners (the ACP bridge for its own agents), absence fails closed to `unavailable`. | | `ctx.codeRuntime` | `seam` | [`code-runtime`](../packages/code-runtime/code-runtime) | [`code-runtime-worker`](../packages/code-runtime/code-runtime-worker) | [`tools`](../packages/core/tools) | - | Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the tool registry consumes it for Code Mode). | | `ctx.fs` | `seam` | [`fs`](../packages/fs/fs) | [`fs-local`](../packages/fs/fs-local) | [`tool-fs`](../packages/fs/tool-fs) | [`fs-policy`](../packages/fs/fs-policy) | tool-fs executes read/write/edit through ctx.fs; fs-policy contributes observed-state checks through the fs/* event gate. | diff --git a/docs/config-catalog.md b/docs/config-catalog.md index ed175f250b..b092b20537 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -430,6 +430,42 @@ export interface Config { Source: [`packages/guard/repeat-tool-guard/src/index.ts:55`](../packages/guard/repeat-tool-guard/src/index.ts) +## `@deepseek-ai/dsh-sandbox-local` + +```ts config-catalog +/** Plugin config. All optional — `static Config` supplies the defaults. */ +export interface Config { + /** + * Override the sandbox runner argv (the bwrap-shaped profile arguments are + * appended). A NON-EMPTY argv is the operator's assertion that this runner + * exists and FULLY enforces the profile (confinement reports + * `enforcement: 'full'`, and — the runner's kernel mechanism being unknown + * — carries both Linux file-denial dialects as its denial signatures) — + * the runner chain and its probes are skipped, + * and a broken runner fails loudly at spawn time like any missing command. + * Absent (or empty — the schema normalizes an omitted array to `[]`): the + * built-in platform chains — Linux `bwrap` then the Landlock launcher + * (probed in that order), darwin `sandbox-exec` (the sole candidate, + * selected without a probe). Used for custom/alternative runners and + * for deterministic fake runners in keyless test tiers. + */ + runnerCommand?: string[] + /** + * Per-probe timeout in milliseconds for the chain's functional probes + * (default: 5000; must be a positive finite number — Node treats a 0 + * `spawnSync` timeout as UNBOUNDED, so 0 is rejected at construction). A + * probe that exceeds it reads as an unusable rung, so a + * host slow enough to trip the default — cold NFS mounts, heavily loaded + * CI — would otherwise be misclassified `SANDBOX_UNAVAILABLE` with no + * config escape. Bounds ONE probe, and the chain walk runs each at most once + * per provider lifetime. + */ + probeTimeoutMs?: number +} +``` + +Source: [`packages/sandbox/sandbox-local/src/index.ts:36`](../packages/sandbox/sandbox-local/src/index.ts) + ## `@deepseek-ai/dsh-session-persistence-jsonl` Requires: `sessions` @@ -985,6 +1021,7 @@ Abstract service classes — a deployment loads a concrete implementation packag - `@deepseek-ai/dsh-code-runtime` — abstract `CodeRuntime` ([`packages/code-runtime/code-runtime/src/index.ts`](../packages/code-runtime/code-runtime/src/index.ts)) - `@deepseek-ai/dsh-compact` — abstract `CompactService` ([`packages/compact/compact/src/index.ts`](../packages/compact/compact/src/index.ts)) - `@deepseek-ai/dsh-fs` — abstract `FileSystem` ([`packages/fs/fs/src/index.ts`](../packages/fs/fs/src/index.ts)) +- `@deepseek-ai/dsh-sandbox` — abstract `SandboxProvider` ([`packages/sandbox/sandbox/src/index.ts`](../packages/sandbox/sandbox/src/index.ts)) - `@deepseek-ai/dsh-session-persistence` — abstract `SessionPersistence` ([`packages/session-persistence/session-persistence/src/index.ts`](../packages/session-persistence/session-persistence/src/index.ts)) - `@deepseek-ai/dsh-workflow` — abstract `WorkflowService` ([`packages/workflow/workflow/src/index.ts`](../packages/workflow/workflow/src/index.ts)) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index eb0fe8ffd1..e0fa68bab9 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -157,6 +157,22 @@ Types: [GenerateOptions](../core-data-structures/core.md) · [StreamChunk](../co Source: [`packages/llm/llm/src/index.ts:88`](../../packages/llm/llm/src/index.ts) +## `ctx.sandbox` — `SandboxProvider` (abstract seam) + +Abstract process-sandbox service. Subclass, implement confine, and load the subclass as a plugin — it registers as `ctx.sandbox` (one implementation per context; loading a second throws, cordis' standard duplicate-service behavior). + +Semantics every implementation must honor: + +- confine either returns an argv whose runner ENFORCES the policy or fails closed — at `confine` time with SandboxUnavailableError (no backend for this host), or at EXECUTION time by the runner itself refusing to run the command (exiting without exec'ing it, identified by ConfinedArgv.runnerFailureSignatures). A silent unconfined passthrough is never a legal outcome on either path. +- Probing exists to ARBITRATE between multiple candidate backends and may be skipped when a platform has exactly one: the sole candidate is selected directly and the runner's exec-time fail-closed refusal carries the safety property. When probing does run, it is functional (actually enforcing a profile, not a version check), at most once per provider lifetime; `confine` itself spawns nothing beyond that one-time probing. +- The returned ConfinedArgv.enforcement states the backend's actual completeness for THIS host; `partial` is reported, never silently upgraded to `full`. + +```ts cordis-catalog +abstract confine(argv: readonly string[], policy: SandboxPolicy): ConfinedArgv +``` + +Source: [`packages/sandbox/sandbox/src/index.ts:180`](../../packages/sandbox/sandbox/src/index.ts) + ## `ctx.sessionPersistence` — `SessionPersistence` (abstract seam) Abstract durable session-persistence service. Subclass, implement the abstract methods, and load the subclass as a plugin — it registers as `ctx.sessionPersistence` (one implementation per context; loading a second throws, cordis' standard duplicate-service behavior). diff --git a/docs/module-graph.md b/docs/module-graph.md index 2bcd15c967..2c2e94a254 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -98,6 +98,10 @@ flowchart TD subgraph group_guard["packages/guard"] pkg_repeat_tool_guard["repeat-tool-guard"] end + subgraph group_sandbox["packages/sandbox"] + pkg_sandbox["sandbox"] + pkg_sandbox_local["sandbox-local"] + end subgraph group_workflow["packages/workflow"] pkg_tool_workflow["tool-workflow"] pkg_workflow["workflow"] @@ -116,6 +120,7 @@ flowchart TD pkg_fs --> pkg_brand pkg_fs --> pkg_llm pkg_web --> pkg_llm + pkg_sandbox --> pkg_llm pkg_agent --> pkg_brand pkg_agent --> pkg_llm pkg_agent --> pkg_session @@ -134,6 +139,8 @@ flowchart TD pkg_session_persistence --> pkg_session pkg_llm_replay --> pkg_llm pkg_llm_replay --> pkg_session + pkg_sandbox_local --> pkg_llm + pkg_sandbox_local --> pkg_sandbox pkg_compact_basic --> pkg_agent pkg_compact_basic --> pkg_compact pkg_compact_basic --> pkg_llm @@ -288,6 +295,7 @@ flowchart TD | [`bash-local`](../packages/bash/bash-local) | `bash` | [`bash`](../packages/bash/bash), [`timeout`](../packages/util/timeout) | | [`fs`](../packages/fs/fs) | `fs` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | | [`web`](../packages/web/web) | `web` | [`llm`](../packages/llm/llm) | +| [`sandbox`](../packages/sandbox/sandbox) | `sandbox` | [`llm`](../packages/llm/llm) | | [`agent`](../packages/core/agent) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`fs-local`](../packages/fs/fs-local) | `fs` | [`fs`](../packages/fs/fs) | | [`fs-policy`](../packages/fs/fs-policy) | `fs` | [`fs`](../packages/fs/fs) | @@ -299,6 +307,7 @@ flowchart TD | [`hook-protocol`](../packages/hooks/hook-protocol) | `hooks` | [`bash`](../packages/bash/bash), [`session`](../packages/core/session) | | [`session-persistence`](../packages/session-persistence/session-persistence) | `session-persistence` | [`session`](../packages/core/session) | | [`llm-replay`](../packages/support/llm-replay) | `support` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | +| [`sandbox-local`](../packages/sandbox/sandbox-local) | `sandbox` | [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox) | | [`compact-basic`](../packages/compact/compact-basic) | `compact` | [`agent`](../packages/core/agent), [`compact`](../packages/compact/compact), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | diff --git a/knip.json b/knip.json index 67da80cd2a..ba6dfb6fb2 100644 --- a/knip.json +++ b/knip.json @@ -2,6 +2,7 @@ "$schema": "https://unpkg.com/knip@5/schema.json", "exclude": ["duplicates"], "ignoreWorkspaces": ["vendor/*"], + "ignoreBinaries": ["bwrap", "sandbox-exec"], "workspaces": { ".": { "entry": [ @@ -14,6 +15,10 @@ ], "project": ["scripts/**/*.ts", "examples/**/*.ts"] }, + "packages/sandbox/sandbox-local": { + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] + }, "packages/*/*": { "entry": ["tests/**/*.spec.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] diff --git a/packages/README.md b/packages/README.md index 8d1580b291..7a389b29fa 100644 --- a/packages/README.md +++ b/packages/README.md @@ -4,7 +4,7 @@ Harness packages, all under the `@deepseek-ai/dsh-*` scope. Each package is a Co ## Hierarchy -Packages are grouped by modular role at `packages///`. The group directory is a pure container (no `package.json` of its own); the package name stays `@deepseek-ai/dsh-` regardless of group. **Each group README is the canonical per-package map** — package roles, ctx keys, and the product-vs-support split live there, next to the code. +Packages are grouped by modular role at `packages///`. The group directory is a pure container (no `package.json`); the package name stays `@deepseek-ai/dsh-` regardless of group. **Each group README is the canonical per-package map** — package roles, ctx keys, and the product-vs-support split live there, next to the code. | Group | Role | Release expectation | |---|---|---| @@ -12,6 +12,7 @@ Packages are grouped by modular role at `packages///`. The group dir | [`llm/`](llm/README.md) | LLM capability family: the abstract service + provider adapters | Product — stable surface | | [`bash/`](bash/README.md) | Bash capability family: the executor seam, a local impl, and the model-facing tool | Product — stable surface | | [`code-runtime/`](code-runtime/README.md) | Code-execution capability family: the abstract runtime seam for model-written programs + a worker-thread backend | Product — stable surface | +| [`sandbox/`](sandbox/README.md) | Process-confinement seam; bwrap/Landlock/Seatbelt backends | Product — stable surface | | [`approval/`](approval/README.md) | One-shot permission decisions | Product — stable surface | | [`fs/`](fs/README.md) | Filesystem capability family: the abstract seam, a local impl, and the model-facing file tools | Product — stable surface | | [`compact/`](compact/README.md) | Compaction capability family: the abstract seam + a basic backend (tool deferred) | Product — stable surface | diff --git a/packages/sandbox/README.md b/packages/sandbox/README.md new file mode 100644 index 0000000000..bc535bbc8a --- /dev/null +++ b/packages/sandbox/README.md @@ -0,0 +1,12 @@ +# sandbox/ — process-sandbox capability family + +The confinement half of the [capability-seam split](../../docs/rfc/implemented/architecture/2026-06-13-capability-seams.md): an abstract provider interface and platform backends. Consumers hand `ctx.sandbox` the exact argv they are about to spawn and spawn the returned (wrapped) argv instead; policy (`SandboxPolicy`: mode + workspace root) rides each call, so different consumers confine under different policies at the same instant. All **product** packages. + +| Package | Role | ctx key | +|---|---|---| +| `sandbox/` | Abstract process-sandbox seam (the `SandboxProvider` contract + the mode/enforcement/policy vocabulary) | `ctx.sandbox` | +| `sandbox-local/` | Local backends by platform chain: Linux `bwrap` else the `landlock-run` launcher (the npm-distributed [`node-addon-landlock-run`](https://www.npmjs.com/package/node-addon-landlock-run) family, built and released from its own repository), darwin `sandbox-exec`/Seatbelt — multi-candidate chains functionally probed, sole candidates selected directly, verdict cached, fail-closed | (registers `ctx.sandbox`) | + +The seam confines SAME-WORLD subprocesses only (shared filesystem and kernel). Containers, microVMs, and remote executors are NOT backends here — they replace whole capability implementations (`ctx.bash`, `ctx.fs`) as environment-coherent groups; the boundary is recorded in [the sandbox RFC](../../docs/rfc/proposed/feature/2026-07-06-sandbox.md). + +The staged first consumer is the sandboxed bash executor (it hands over the exact `['bash', '-c', command]` argv it is about to spawn). In-process tools (fs/web) cannot be confined by an OS wrapper — their sandbox semantics are policy at their own seams (the sandbox RFC's cross-family phase). diff --git a/packages/sandbox/sandbox-local/README.md b/packages/sandbox/sandbox-local/README.md new file mode 100644 index 0000000000..c4ca758aee --- /dev/null +++ b/packages/sandbox/sandbox-local/README.md @@ -0,0 +1,18 @@ +# @deepseek-ai/dsh-sandbox-local + +Local implementation of the [`@deepseek-ai/dsh-sandbox`](../sandbox/) seam: wraps a caller's argv in a platform confinement runner. Selection is BY PLATFORM, resolved once and cached: each platform names its runner chain, a chain of one is selected directly (probing arbitrates between candidates — a sole candidate leaves nothing to arbitrate), and a chain of several is probed functionally in preference order. Linux: [`bwrap`](https://github.com/containers/bubblewrap) when its probe passes, else the [`landlock-run`](https://www.npmjs.com/package/node-addon-landlock-run) Landlock launcher (kernel confinement that needs no userns/mount privileges — see the [sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md) for the prebuilt-binary decision and profile-parity notes); darwin: `sandbox-exec` speaking a Seatbelt (SBPL) profile, unprobed. A platform with no chain means `confine()` FAILS CLOSED with the seam's structured `SANDBOX_UNAVAILABLE` error (win32 today: a reserved, deliberately empty chain awaiting an AppContainer-family runner); an unprobed runner that turns out unusable fails closed at EXECUTION instead — it refuses to run the command, and every wrap's `runnerFailureSignatures` let the consumer classify that as a sandbox failure rather than a task failure. Never a silent unconfined passthrough on any path. + +Policy is per call (`SandboxPolicy`: mode + workspace root); the provider holds only the mechanism and the cached ladder verdict. Every wrap reports the selected runner's `enforcement` (`full`, or `partial` on an older Landlock ABI that governs only a subset of accesses — read from the launcher's `--probe` report line) and its `denialSignatures` — the stderr dialect that rung's kernel speaks on a denied file effect (EROFS text under bwrap, EACCES under Landlock, EPERM under Seatbelt), which stderr-inferring consumers match instead of a cross-runner union. A non-empty `runnerCommand` config is the operator's assertion of a runner that fully enforces the bwrap-shaped profile: the ladder and probes are skipped (the wrap carries both Linux denial dialects, the mechanism being unknown) — also the deterministic fake-runner seam for keyless test tiers. Its runner-failure dialect is the OUTER shell's argv0-scoped failure shapes (`exec: : not found`, `: No such file or directory`, `: Permission denied`) — the consumer re-joins the wrap through `bash -c 'exec …'`, so a missing or unexecutable configured runner classifies as a sandbox failure (fail closed at execution), never as a failing command or a denial. `probeTimeoutMs` (default 5000) bounds each functional probe, the escape hatch for hosts slow enough that a timed-out probe would otherwise misread as `SANDBOX_UNAVAILABLE`. + +The Seatbelt profile is allow-default with `(deny file-write*)` plus write allow-lists, so exactly the mode's promised file effects are governed: `read-only` grants the `/dev/null` literal alone; `workspace-write` adds the workspace root, `/tmp`, and the per-user darwin temp dir (`os.tmpdir()` — the platform's real temp area for mkstemp-family tools), every root canonicalized because Seatbelt matches resolved paths (`/tmp` IS `/private/tmp`). Apple marks the `sandbox-exec` CLI deprecated but ships it on every macOS; the functional probe is what fails closed if that ever changes. + +The Landlock launcher comes from the npm package family [`node-addon-landlock-run`](https://www.npmjs.com/package/node-addon-landlock-run) — an entry package (this package's one runtime dependency) plus per-platform binary packages selected by npm's `os`/`cpu` fields, built and released from [its own repository](https://github.com/deepseek-harness/node-addon-landlock-run). The entry package owns the launcher's CLI contract: `launcherPath()` resolution (a host with no platform package yields a never-existing path whose probe fails exactly like an unenforcing kernel), the functional `probe()`, and `grantArgs()` flag spelling — versioned together with the binary, so probe-report parsing can never drift against it. This provider keeps only the policy side: the mode → grants mapping (`landlockProfileArgs`) and the ladder. The consumer path is rehearsed by `tests/packed-install.e2e.ts`: pack THIS package's closure, install into a throwaway consumer with the launcher family coming from the registry, assert the installed binary executable (a stripped mode bit must not masquerade as a non-enforcing kernel), and confine through it under plain `node`. + +Every rung has its keyless world-proof (`tests/bwrap.e2e.ts`, `tests/landlock.e2e.ts`, `tests/seatbelt.e2e.ts`), each self-skipping where its runner is absent; CI's `sandbox-e2e` matrix runs all of them against real kernels (bwrap plus one Landlock leg per architecture on Linux, Seatbelt on macOS) and fails on a silent all-skip. + +```yaml +- id: sandbox + name: '@deepseek-ai/dsh-sandbox-local' +``` + +The staged first consumer is the sandboxed bash executor. diff --git a/packages/sandbox/sandbox-local/package.json b/packages/sandbox/sandbox-local/package.json new file mode 100644 index 0000000000..d2f8b34161 --- /dev/null +++ b/packages/sandbox/sandbox-local/package.json @@ -0,0 +1,38 @@ +{ + "name": "@deepseek-ai/dsh-sandbox-local", + "description": "Local process-sandbox backends for the DeepSeek Harness sandbox seam: bwrap, the npm-distributed landlock-run launcher, or macOS Seatbelt — functionally probed, fail-closed", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-sandbox": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "node-addon-landlock-run": "0.0.0-test.0", + "schemastery": "^3.18.0" + }, + "devDependencies": { + "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-sandbox": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/sandbox/sandbox-local/src/index.ts b/packages/sandbox/sandbox-local/src/index.ts new file mode 100644 index 0000000000..01189bc78b --- /dev/null +++ b/packages/sandbox/sandbox-local/src/index.ts @@ -0,0 +1,455 @@ +/** + * `LocalSandboxProvider`: the local implementation of the + * `@deepseek-ai/dsh-sandbox` seam. Wraps a caller's argv in a platform + * confinement runner selected BY PLATFORM: each platform names its runner + * chain ({@link PLATFORM_CHAINS}), a chain of one is selected directly (no + * probe — there is nothing to arbitrate), and a chain of several is probed + * FUNCTIONALLY in preference order (build and enforce a real profile once, + * not `--version`), the verdict cached for the provider's lifetime. Linux: + * `bwrap`, else the `landlock-run` Landlock launcher (kernel confinement + * that needs no userns/mount privileges; distributed as the npm package + * family `node-addon-landlock-run` — the decision recorded in + * docs/rfc/proposed/feature/2026-07-06-sandbox.md); darwin: macOS + * `sandbox-exec` speaking a Seatbelt (SBPL) profile, unprobed. + * When the platform has no chain or no candidate passes, + * {@link LocalSandboxProvider.confine} FAILS CLOSED with the seam's + * structured `SANDBOX_UNAVAILABLE` error instead of passing the argv + * through unconfined; an unusable runner selected WITHOUT a probe fails + * closed at execution time instead (it refuses to run the command), which + * the wrap's `runnerFailureSignatures` let consumers classify as a sandbox + * failure rather than a task failure. + * + * @module @deepseek-ai/dsh-sandbox-local + */ + +import { spawnSync } from 'node:child_process' +import { realpathSync } from 'node:fs' +import { tmpdir } from 'node:os' +import { grantArgs as landlockGrantArgs, LAUNCHER_BIN, launcherPath as landlockLauncherPath, probe as defaultProbeLandlock } from 'node-addon-landlock-run' +import { Context } from 'cordis' +import z from 'schemastery' +import { assertNever } from '@deepseek-ai/dsh-llm' +import { SandboxProvider, SandboxUnavailableError } from '@deepseek-ai/dsh-sandbox' +import type { ConfinedArgv, ConfinedSandboxMode, SandboxEnforcement, SandboxPolicy } from '@deepseek-ai/dsh-sandbox' + +/** Plugin config. All optional — `static Config` supplies the defaults. */ +export interface Config { + /** + * Override the sandbox runner argv (the bwrap-shaped profile arguments are + * appended). A NON-EMPTY argv is the operator's assertion that this runner + * exists and FULLY enforces the profile (confinement reports + * `enforcement: 'full'`, and — the runner's kernel mechanism being unknown + * — carries both Linux file-denial dialects as its denial signatures) — + * the runner chain and its probes are skipped, + * and a broken runner fails loudly at spawn time like any missing command. + * Absent (or empty — the schema normalizes an omitted array to `[]`): the + * built-in platform chains — Linux `bwrap` then the Landlock launcher + * (probed in that order), darwin `sandbox-exec` (the sole candidate, + * selected without a probe). Used for custom/alternative runners and + * for deterministic fake runners in keyless test tiers. + */ + runnerCommand?: string[] + /** + * Per-probe timeout in milliseconds for the chain's functional probes + * (default: 5000; must be a positive finite number — Node treats a 0 + * `spawnSync` timeout as UNBOUNDED, so 0 is rejected at construction). A + * probe that exceeds it reads as an unusable rung, so a + * host slow enough to trip the default — cold NFS mounts, heavily loaded + * CI — would otherwise be misclassified `SANDBOX_UNAVAILABLE` with no + * config escape. Bounds ONE probe, and the chain walk runs each at most once + * per provider lifetime. + */ + probeTimeoutMs?: number +} + +/** + * The `bwrap` profile arguments for one policy. The whole host tree is bound + * read-only; a fresh `/dev` keeps `>/dev/null` redirects working and a fresh + * `/proc` keeps process-inspecting tools working. `workspace-write` + * additionally mounts an ephemeral writable `/tmp` and rebinds the workspace + * root read-write (bind order matters: later binds overlay earlier ones). + * Deliberately NO `--unshare-pid` (it would break the process-group kill + * semantics shell consumers rely on) and NO network unsharing (the seam's + * mode vocabulary promises file effects only). + * @param policy - the file-effect policy to express as bwrap arguments. + * @returns the bwrap profile arguments (before the trailing `--` + argv). + */ +export function bwrapProfileArgs(policy: SandboxPolicy): string[] { + const args = ['--ro-bind', '/', '/', '--dev', '/dev', '--proc', '/proc', '--die-with-parent'] + if (policy.mode === 'workspace-write') { + args.push('--tmpfs', '/tmp') + args.push('--bind', policy.workspaceRoot, policy.workspaceRoot) + } + return args +} + +/** + * The `landlock-run` grant arguments for one policy — the bwrap + * profile's file-effect semantics expressed as a Landlock allow-list + * (Landlock cannot mount, so there are no fresh/ephemeral filesystems). The + * whole tree is readable and executable; of `/dev`, ONLY `/dev/null` is + * writable — a whole-`/dev` grant would expose real host paths beneath it + * (`/dev/shm`, a shared tmpfs) to persistent writes, which `read-only` + * promises never happen. bwrap can hand out a fresh ephemeral `/dev`; on the + * host's own `/dev` the write grant must be node-by-node, and `>/dev/null` + * is the one redirects need. `workspace-write` adds the HOST `/tmp` (shared + * and persistent, where bwrap's is ephemeral — the honest difference, + * recorded in the sandbox RFC's runner notes) plus the workspace + * root read-write. The flag spelling belongs to `node-addon-landlock-run`'s + * `grantArgs`; this function owns only the policy → grants mapping. + * @param policy - the file-effect policy to express as launcher grants. + * @returns the launcher grant arguments (before `--` + argv). + */ +export function landlockProfileArgs(policy: SandboxPolicy): string[] { + const readWrite = ['/dev/null'] + if (policy.mode === 'workspace-write') { + readWrite.push('/tmp', policy.workspaceRoot) + } + return landlockGrantArgs({ readOnly: ['/'], readWrite }) +} + +/** + * Resolve a granted root to the path the kernel actually sees. Seatbelt path + * filters match the CANONICAL path (symlinks resolved), and the roots this + * profile grants are symlinked on every macOS: `/tmp` is `/private/tmp` and + * the user temp dir lives under `/var` → `/private/var` — an as-spelled + * grant would match nothing. + */ +function canonicalPath(path: string): string { + try { + return realpathSync(path) + } catch { + // realpathSync failed: the path (or a prefix) is missing or unreadable. + // Grant the spelling as-is — an unresolvable root matches nothing until + // it exists, which is the conservative outcome, and inventing a fallback + // resolution here would grant a path the caller never named. + return path + } +} + +/** Quote one path as an SBPL string literal (backslashes and double quotes escaped). */ +function sbplString(path: string): string { + return `"${path.replaceAll('\\', String.raw`\\`).replaceAll('"', String.raw`\"`)}"` +} + +/** + * The `sandbox-exec` arguments for one policy: `-p` plus a Seatbelt (SBPL) + * profile with the same file-effect semantics as the other dialects, built + * as allow-default → `(deny file-write*)` → write allow-list (later rules + * win), so exactly the mode's promised file effects are governed — network + * and process visibility stay unrestricted, which is all the seam's mode + * vocabulary claims. Of `/dev`, ONLY the `/dev/null` literal is writable + * (the same node-not-directory reasoning as the Landlock grant). + * `workspace-write` adds the workspace root, the host `/tmp`, and the + * per-user darwin temp dir (`os.tmpdir()`, launchd's `TMPDIR`, inherited by + * the confined child) — on darwin that directory IS the platform's `/tmp` + * for every mkstemp-family tool, so omitting it would deny the mode's + * promised temp area. All granted roots are canonicalized because Seatbelt + * matches resolved paths ({@link canonicalPath}); duplicates after + * resolution collapse. + * @param policy - the file-effect policy to express as an SBPL profile. + * @returns the `sandbox-exec` arguments (`-p` + profile, before `--` + argv). + */ +export function seatbeltProfileArgs(policy: SandboxPolicy): string[] { + const forms = ['(version 1)', '(allow default)', '(deny file-write*)', `(allow file-write* (literal ${sbplString('/dev/null')}))`] + if (policy.mode === 'workspace-write') { + const roots = [...new Set([policy.workspaceRoot, '/tmp', tmpdir()].map(canonicalPath))] + forms.push(`(allow file-write* ${roots.map(root => `(subpath ${sbplString(root)})`).join(' ')})`) + } + return ['-p', forms.join(' ')] +} + +/** + * Functional `bwrap` probe: can it actually build the read-only profile on + * this host? (`--version` alone would miss a disabled unprivileged user + * namespace.) Synchronous by design — it runs once, lazily, before the first + * confined wrap, and the chain's verdict is cached for the provider's + * lifetime. `timeoutMs` bounds the probe (the `probeTimeoutMs` config). + * The Landlock rung needs no such helper: resolution (`launcherPath`) and + * the functional probe (`probe`) come from `node-addon-landlock-run`, the + * package family that ships the launcher binary itself, so the probe-report + * parsing can never drift against the binary. + */ +function defaultProbeBwrap(timeoutMs: number): boolean { + const probe = spawnSync('bwrap', ['--ro-bind', '/', '/', '--dev', '/dev', '--proc', '/proc', '--die-with-parent', '--', 'true'], { + timeout: timeoutMs, + stdio: 'ignore', + }) + return probe.status === 0 +} + +/** + * Functional Seatbelt probe: apply the real `read-only` profile through + * `sandbox-exec -p` and run `true` under it — exit 0 means the kernel + * accepted and enforced the profile (`sandbox-exec` exits non-zero when + * `sandbox_init` refuses it). A missing `sandbox-exec` (every non-macOS + * host) fails the spawn and probes `unusable`, exactly like the other + * rungs' absent binaries. Apple marks the CLI deprecated but ships it on + * every macOS; if it ever disappears, this probe is what fails closed. + */ +function defaultProbeSeatbelt(seatbeltExec: string, timeoutMs: number): boolean { + const probe = spawnSync(seatbeltExec, [...seatbeltProfileArgs({ mode: 'read-only', workspaceRoot: '/' }), '--', 'true'], { + timeout: timeoutMs, + stdio: 'ignore', + }) + return probe.status === 0 +} + +/** Test seam: inject probe verdicts / a fake launcher / a platform without real runners. */ +export interface SandboxInternals { + /** Replaces `process.platform` for chain selection (exercise any platform's chain from any host). */ + platform?: string + /** Replaces the platform's chain wholesale (walk mechanics — e.g. probing a rung the product chains only reach unprobed). */ + chain?: readonly SelectedRunner['runner'][] + /** Replaces the functional `bwrap` probe (the Linux chain's first rung). */ + probeBwrap?: () => boolean + /** Replaces the functional Landlock launcher probe (the Linux chain's second rung). */ + probeLandlock?: (launcher: string) => SandboxEnforcement | 'unusable' + /** Replaces the functional Seatbelt probe (the darwin chain's sole rung — only consulted if that chain ever grows). */ + probeSeatbelt?: (seatbeltExec: string) => boolean + /** Replaces the resolved `landlock-run` launcher path (a fake launcher script). */ + landlockLauncher?: string + /** Replaces the `sandbox-exec` executable the probe and wraps invoke (a fake script). */ + seatbeltExec?: string +} + +/** The chain's verdict: which runner confines, and how completely it enforces. */ +type SelectedRunner = { runner: 'bwrap' | 'landlock' | 'seatbelt'; enforcement: SandboxEnforcement } + +/** + * The runner chain per platform — selection is BY PLATFORM first, probes + * second: a platform's chain is probed in preference order only when it has + * MORE than one candidate (probing arbitrates; it does not re-validate a + * choice that has no alternative). A platform with no chain fails closed at + * `confine()`. Linux prefers `bwrap` (its mount profile is closest to the + * mode vocabulary) over the Landlock launcher; darwin has exactly one + * candidate, selected without any probe. + */ +const PLATFORM_CHAINS: Record = { + linux: ['bwrap', 'landlock'], + darwin: ['seatbelt'], + // Reserved slot, deliberately empty: Windows support fills it with a + // confinement runner (AppContainer / restricted-token family, shipped from + // its own repository on the landlock-run template) plus a + // SelectedRunner['runner'] union member — the switches' assertNever guards + // then walk the implementer to every site. An empty chain fails closed at + // confine(), identical to an unlisted platform: reserving the slot never + // weakens the fail-closed end. + win32: [], +} + +/** + * Enforcement completeness a rung claims when selected WITHOUT a probe (a + * chain of one). `bwrap` and Seatbelt govern every promised file effect by + * construction, so the claim is a profile fact; `landlock` is listed for the + * table's totality but is unreachable unprobed today (the Linux chain has + * two rungs, so it is only ever selected through its probe, whose report is + * what distinguishes full from per-ABI-partial — and the launcher additionally + * self-reports partial enforcement on stderr at every confined run). + */ +const STATIC_ENFORCEMENT: Record = { + bwrap: 'full', + landlock: 'full', + seatbelt: 'full', +} + +/** + * A probe bound must be a positive finite number: Node treats + * `spawnSync({ timeout: 0 })` as NO timeout, so an unvalidated 0 would + * silently mean "unbounded" — the opposite of what the field promises. + */ +function assertPositiveFinite(name: string, value: number): void { + if (!Number.isFinite(value) || value <= 0) { + throw new Error(`sandbox-local: ${name} must be a positive finite number`) + } +} + +/** + * The denial dialect each runner's kernel speaks — the case-insensitive + * stderr substrings a denied file effect produces under it, carried on every + * wrap (the seam's `ConfinedArgv.denialSignatures`). Kernel facts, not + * tunables: bwrap denies through its read-only bind mounts (EROFS), Landlock + * refuses with EACCES, Seatbelt with EPERM — whose text is also what + * non-file EPERM boundaries print, the residual imprecision the consumer's + * conservative classifier documents. An operator-configured `runnerCommand` + * has an unknown kernel mechanism, so its wraps carry both Linux file-denial + * dialects; bare EPERM stays excluded there (it names non-file boundaries + * the mode vocabulary does not govern). + */ +const DENIAL_SIGNATURES = { + bwrap: ['read-only file system'], + landlock: ['permission denied'], + seatbelt: ['operation not permitted'], + runnerCommand: ['read-only file system', 'permission denied'], +} as const satisfies Record + +/** + * How each runner's OWN failure identifies itself on stderr (the seam's + * `ConfinedArgv.runnerFailureSignatures`): every runner prefixes its error + * lines with its program name, and the shell's runner-not-found message + * carries the same `name: ` shape (`bash: bwrap: command not found`, + * `bash: …/bin/landlock-run: No such file or directory`) — so one substring + * per runner covers both "runner broke" and "runner missing". Consumers + * match these BEFORE the denial dialect: a runner's error text can contain + * denial words (an unopenable grant root reports `Permission denied`), and + * a runner failure means the command never ran at all. + */ +const RUNNER_FAILURE_SIGNATURES = { + bwrap: ['bwrap: '], + landlock: [`${LAUNCHER_BIN}: `], + seatbelt: ['sandbox-exec: '], +} as const satisfies Record + +/** + * Local process-sandbox provider. Registers as `ctx.sandbox`. Stateless + * apart from the cached chain verdict — it spawns nothing but the one-time + * probes, so there is no disposal work beyond cordis' own. + */ +export class LocalSandboxProvider extends SandboxProvider { + // Inline schema call: the config catalog walks `static Config` statically. + static Config: z = z.object({ + runnerCommand: z.array(z.string()).default([]), + probeTimeoutMs: z.natural().default(5_000), + }) + + /** Test seam (mirrors the bash executors' `internals`). */ + internals: SandboxInternals = {} + + private readonly runnerCommand: string[] | undefined + private readonly probeTimeoutMs: number + /** Cached chain verdict; undefined until the first confined wrap needs it. */ + private selectedRunner: SelectedRunner | 'unavailable' | undefined + + constructor(ctx: Context, config: Config) { + super(ctx) + // The schema (static Config) defaults both fields — the casts record + // those runtime facts. An empty runnerCommand means "not configured": + // use the platform chain. + const runner = config.runnerCommand as string[] + this.runnerCommand = runner.length > 0 ? runner : undefined + this.probeTimeoutMs = config.probeTimeoutMs as number + assertPositiveFinite('probeTimeoutMs', this.probeTimeoutMs) + } + + /** + * Wrap `argv` in the selected runner's invocation for `policy` — the + * configured `runnerCommand` when present (the operator's assertion, no + * probe), else the platform chain's runner speaking its own profile + * dialect. Every wrap carries the runner's enforcement completeness, its + * denial dialect, and its runner-failure signatures. + * @param argv - the exact argv the caller is about to spawn. + * @param policy - the file-effect policy this execution runs under. + * @returns the wrapped argv plus the selected backend's enforcement + * completeness, denial signatures, and runner-failure signatures; + * throws the fail-closed `SANDBOX_UNAVAILABLE` error when the platform + * has no usable runner. + */ + confine(argv: readonly string[], policy: SandboxPolicy): ConfinedArgv { + if (this.runnerCommand !== undefined) { + const argv0 = this.runnerCommand[0] as string + return { + argv: [...this.runnerCommand, ...bwrapProfileArgs(policy), '--', ...argv], + enforcement: 'full', + denialSignatures: DENIAL_SIGNATURES.runnerCommand, + // The configured runner's own failure dialect is unknown (as is its + // kernel mechanism), but the consumer never spawns the wrap directly + // — it re-joins it through an outer `bash -c 'exec …'` — so a + // missing or unexecutable runner fails with the OUTER shell's + // argv0-scoped shapes, and those we do know. Scoping every shape to + // argv0 keeps in-command errors out (a bare `exec:`/`Permission + // denied` prefix would claim tool output; `exec: : not + // found` cannot). The residual collision — a command invoking a + // file named exactly like the runner and hitting the same errno — + // is the classifier's documented conservative-inference trade. + runnerFailureSignatures: [ + `exec: ${argv0}: not found`, + `${argv0}: No such file or directory`, + `${argv0}: Permission denied`, + ], + } + } + const selected = this.selectRunner(policy.mode) + return { + argv: [...this.runnerArgv(selected.runner, policy), '--', ...argv], + enforcement: selected.enforcement, + denialSignatures: DENIAL_SIGNATURES[selected.runner], + runnerFailureSignatures: RUNNER_FAILURE_SIGNATURES[selected.runner], + } + } + + /** The selected rung's runner invocation (program + profile arguments) for one policy. */ + private runnerArgv(runner: SelectedRunner['runner'], policy: SandboxPolicy): string[] { + switch (runner) { + case 'bwrap': return ['bwrap', ...bwrapProfileArgs(policy)] + case 'landlock': return [this.landlockLauncher(), ...landlockProfileArgs(policy)] + case 'seatbelt': return [this.seatbeltExec(), ...seatbeltProfileArgs(policy)] + default: return assertNever(runner) + } + } + + /** + * Resolve which runner confines commands, once, for the provider's + * lifetime: this platform's chain ({@link PLATFORM_CHAINS}), its sole + * candidate selected directly, multiple candidates arbitrated by + * functional probes in chain order. Fail closed when the platform has no + * chain or no candidate passes — the command never runs. + */ + private selectRunner(mode: ConfinedSandboxMode): SelectedRunner { + this.selectedRunner ??= this.chainVerdict() + if (this.selectedRunner === 'unavailable') throw new SandboxUnavailableError(mode) + return this.selectedRunner + } + + /** Walk this platform's chain: sole candidate unprobed, several probed in order, none usable → unavailable. */ + private chainVerdict(): SelectedRunner | 'unavailable' { + const chain = this.internals.chain ?? PLATFORM_CHAINS[this.internals.platform ?? process.platform] ?? [] + const [first, ...rest] = chain + if (first === undefined) return 'unavailable' + // One candidate = nothing to arbitrate: select it without probing. Its + // runner fails closed at EXECUTION time if unusable (refuses to run the + // command), and the wrap's runnerFailureSignatures let the consumer + // classify that as a sandbox failure — never a silent unconfined run, + // never a plain task failure. + if (rest.length === 0) return { runner: first, enforcement: STATIC_ENFORCEMENT[first] } + for (const runner of chain) { + const enforcement = this.probeRunner(runner) + if (enforcement !== 'unusable') return { runner, enforcement } + } + return 'unavailable' + } + + /** One rung's functional probe (each at most once, via the chain walk). */ + private probeRunner(runner: SelectedRunner['runner']): SandboxEnforcement | 'unusable' { + // bwrap's mount profile and Seatbelt's deny-file-write* profile govern + // every promised file effect by construction, so their passing probes + // are always full enforcement; only the Landlock launcher's probe report + // distinguishes full from per-ABI-partial. + switch (runner) { + case 'bwrap': { + const probe = this.internals.probeBwrap ?? (() => defaultProbeBwrap(this.probeTimeoutMs)) + return probe() ? 'full' : 'unusable' + } + case 'landlock': { + const probe = this.internals.probeLandlock ?? (launcher => defaultProbeLandlock(launcher, { timeoutMs: this.probeTimeoutMs })) + return probe(this.landlockLauncher()) + } + case 'seatbelt': { + const probe = this.internals.probeSeatbelt ?? (exec => defaultProbeSeatbelt(exec, this.probeTimeoutMs)) + return probe(this.seatbeltExec()) ? 'full' : 'unusable' + } + default: return assertNever(runner) + } + } + + /** The Landlock launcher to probe and exec (test seam over the resolved one). */ + private landlockLauncher(): string { + return this.internals.landlockLauncher ?? landlockLauncherPath() + } + + /** The `sandbox-exec` executable to probe and exec (test seam over the system one). */ + private seatbeltExec(): string { + return this.internals.seatbeltExec ?? 'sandbox-exec' + } +} + +export default LocalSandboxProvider diff --git a/packages/sandbox/sandbox-local/tests/bwrap.e2e.ts b/packages/sandbox/sandbox-local/tests/bwrap.e2e.ts new file mode 100644 index 0000000000..da6e683da1 --- /dev/null +++ b/packages/sandbox/sandbox-local/tests/bwrap.e2e.ts @@ -0,0 +1,118 @@ +import { spawnSync } from 'node:child_process' +import { existsSync, readFileSync, rmSync } from 'node:fs' +import { mkdtemp, rm } from 'node:fs/promises' +import { homedir, tmpdir } from 'node:os' +import { join } from 'node:path' +import { afterEach, describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import type { SandboxPolicy } from '@deepseek-ai/dsh-sandbox' +import { bwrapProfileArgs, LocalSandboxProvider } from '@deepseek-ai/dsh-sandbox-local' + +/** + * KEYLESS bwrap integration proof for the BACKEND: the REAL `bwrap` confining + * REAL processes through `confine()` + a direct spawn of the returned argv. + * Nothing is forced off: bwrap is the ladder's FIRST rung, so a passing probe + * selects it naturally — the wrap shape assertion pins that. Verifies the + * WORLD (files exist or don't) and that the kernel's denial text matches the + * dialect the wrap advertises; the through-`ctx.bash` consumer proof lives + * with `@deepseek-ai/dsh-bash-sandbox`. + * + * Self-skips wherever the functional probe fails — no `bwrap` on PATH, or a + * host that denies unprivileged user namespaces (the probe is the same + * profile the provider enforces, so skip conditions match runtime exactly). + * + * Workspaces for the workspace-write tests live under the HOME directory on + * purpose: bwrap's `/tmp` is an EPHEMERAL mount (the documented + * bwrap-profile difference — pinned by its own test below), so only a + * workspace OUTSIDE `/tmp` proves the workspace-root rebind itself. + */ + +const probe = spawnSync('bwrap', [...bwrapProfileArgs({ mode: 'read-only', workspaceRoot: '/' }), '--', 'true'], { timeout: 5_000, stdio: 'ignore' }) +const bwrapUsable = probe.status === 0 + +let ctx: Context | undefined +const tempDirs: string[] = [] +const tempFiles: string[] = [] + +afterEach(async () => { + await ctx?.fiber.dispose() + ctx = undefined + await Promise.all(tempDirs.splice(0).map(dir => rm(dir, { recursive: true, force: true }))) + for (const file of tempFiles.splice(0)) rmSync(file, { force: true }) +}) + +async function tempDir(base: string): Promise { + const dir = await mkdtemp(join(base, 'dsh-bwrap-e2e-')) + tempDirs.push(dir) + return dir +} + +async function provider(): Promise { + ctx = new Context() + await ctx.plugin(LocalSandboxProvider, {}) + return ctx.sandbox as LocalSandboxProvider +} + +/** Confine a shell command under `policy` and run it for real; returns the spawn result and the wrap's facts. */ +function runConfined(sandbox: LocalSandboxProvider, command: string, policy: SandboxPolicy) { + const confined = sandbox.confine(['bash', '-c', command], policy) + const result = spawnSync(confined.argv[0] as string, confined.argv.slice(1), { timeout: 30_000, encoding: 'utf8' }) + return { result, confined } +} + +describe.skipIf(!bwrapUsable)('sandbox-local: real bwrap confinement', () => { + it('the passing probe selects the bwrap rung naturally — first in the ladder, full enforcement, EROFS dialect', async () => { + const workdir = await tempDir(tmpdir()) + const sandbox = await provider() + const confined = sandbox.confine(['true'], { mode: 'read-only', workspaceRoot: workdir }) + expect(confined.argv[0]).toBe('bwrap') + expect(confined.enforcement).toBe('full') + expect(confined.denialSignatures).toEqual(['read-only file system']) + }) + + it('read-only denies a write — the file must NOT exist, and the kernel speaks the advertised dialect', async () => { + const workdir = await tempDir(tmpdir()) + const sandbox = await provider() + const { result } = runConfined(sandbox, `echo hi > ${workdir}/denied.txt`, { mode: 'read-only', workspaceRoot: workdir }) + expect(result.status).not.toBe(0) + // The wrap's denialSignatures must be what the kernel actually prints. + expect(result.stderr.toLowerCase()).toContain('read-only file system') + expect(existsSync(join(workdir, 'denied.txt'))).toBe(false) + }) + + it('read-only keeps the tree readable/executable and the fresh /dev/null writable', async () => { + const workdir = await tempDir(tmpdir()) + const sandbox = await provider() + const { result } = runConfined(sandbox, 'ls / > /dev/null && echo dev-ok', { mode: 'read-only', workspaceRoot: workdir }) + expect(result.status).toBe(0) + expect(result.stdout).toBe('dev-ok\n') + }) + + it('workspace-write lands a write inside the workspace root and still denies one beside it', async () => { + const workdir = await tempDir(homedir()) + const outside = await tempDir(homedir()) + const sandbox = await provider() + + const inside = runConfined(sandbox, `printf bwrap-ok > ${workdir}/allowed.txt`, { mode: 'workspace-write', workspaceRoot: workdir }) + expect(inside.result.status).toBe(0) + expect(readFileSync(join(workdir, 'allowed.txt'), 'utf8')).toBe('bwrap-ok') + + const denied = runConfined(sandbox, `echo hi > ${outside}/denied.txt`, { mode: 'workspace-write', workspaceRoot: workdir }) + expect(denied.result.status).not.toBe(0) + expect(existsSync(join(outside, 'denied.txt'))).toBe(false) + }) + + it('workspace-write mounts an EPHEMERAL /tmp: the write succeeds inside, the host /tmp stays untouched', async () => { + // The documented bwrap-profile difference: Landlock and Seatbelt grant + // the HOST temp areas, bwrap swaps in a fresh tmpfs that dies with the + // process — the strongest of the three temp semantics. + const workdir = await tempDir(homedir()) + const target = `/tmp/dsh-bwrap-e2e-ephemeral-${process.pid}.txt` + tempFiles.push(target) + const sandbox = await provider() + const { result } = runConfined(sandbox, `printf tmp-ok > ${target} && cat ${target}`, { mode: 'workspace-write', workspaceRoot: workdir }) + expect(result.status).toBe(0) + expect(result.stdout).toBe('tmp-ok') + expect(existsSync(target)).toBe(false) + }) +}) diff --git a/packages/sandbox/sandbox-local/tests/landlock.e2e.ts b/packages/sandbox/sandbox-local/tests/landlock.e2e.ts new file mode 100644 index 0000000000..104d3b318a --- /dev/null +++ b/packages/sandbox/sandbox-local/tests/landlock.e2e.ts @@ -0,0 +1,118 @@ +import { spawnSync } from 'node:child_process' +import { existsSync, readFileSync } from 'node:fs' +import { mkdtemp, rm } from 'node:fs/promises' +import { homedir, tmpdir } from 'node:os' +import { join } from 'node:path' +import { afterEach, describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import type { SandboxPolicy } from '@deepseek-ai/dsh-sandbox' +import { launcherPath } from 'node-addon-landlock-run' +import { LocalSandboxProvider } from '@deepseek-ai/dsh-sandbox-local' + +/** + * KEYLESS Landlock integration proof for the BACKEND: the REAL npm-distributed + * `landlock-run` launcher (`node-addon-landlock-run`) confining REAL processes through `confine()` + a direct + * spawn of the returned argv, with the bwrap rung forced off so the ladder + * lands on the launcher. Verifies the WORLD (files exist or don't), not the + * wrapper argv alone; the through-`ctx.bash` consumer proof lives with + * `@deepseek-ai/dsh-bash-sandbox`. + * + * Self-skips when the running kernel does not enforce Landlock (or this + * platform has no launcher package — the probe cannot pass then). The + * binary itself arrives with `pnpm install`, so absence is not a checkout + * state. + * + * Workspaces live under the HOME directory on purpose: `workspace-write` + * grants the host `/tmp` wholesale (the documented Landlock-profile + * difference), so only a workspace OUTSIDE `/tmp` proves the workspace-root + * grant itself. + */ + +const probe = spawnSync(launcherPath(), ['--probe'], { timeout: 5_000, encoding: 'utf8' }) +const landlockUsable = probe.status === 0 +/** The running kernel's enforcement level, from the launcher's probe report — every wrap below must carry exactly this. */ +const enforcement = /partially enforced/.test(probe.stdout ?? '') ? 'partial' : 'full' + +let ctx: Context | undefined +const tempDirs: string[] = [] + +afterEach(async () => { + await ctx?.fiber.dispose() + ctx = undefined + await Promise.all(tempDirs.splice(0).map(dir => rm(dir, { recursive: true, force: true }))) +}) + +async function tempDir(base: string): Promise { + const dir = await mkdtemp(join(base, 'dsh-landlock-e2e-')) + tempDirs.push(dir) + return dir +} + +async function provider(): Promise { + ctx = new Context() + await ctx.plugin(LocalSandboxProvider, {}) + const sandbox = ctx.sandbox as LocalSandboxProvider + sandbox.internals = { probeBwrap: () => false } + return sandbox +} + +/** Confine a shell command under `policy` and run it for real; returns the spawn result and the wrap's enforcement. */ +function runConfined(sandbox: LocalSandboxProvider, command: string, policy: SandboxPolicy) { + const confined = sandbox.confine(['bash', '-c', command], policy) + const result = spawnSync(confined.argv[0] as string, confined.argv.slice(1), { timeout: 30_000, encoding: 'utf8' }) + return { result, enforcement: confined.enforcement } +} + +describe.skipIf(!landlockUsable)('sandbox-local: real Landlock confinement through the bundled launcher', () => { + it('read-only denies a write — the file must NOT exist, the wrap reports the probed enforcement', async () => { + const workdir = await tempDir(tmpdir()) + const sandbox = await provider() + const { result, enforcement: wrapped } = runConfined(sandbox, `echo hi > ${workdir}/denied.txt`, { mode: 'read-only', workspaceRoot: workdir }) + expect(result.status).not.toBe(0) + expect(wrapped).toBe(enforcement) + expect(existsSync(join(workdir, 'denied.txt'))).toBe(false) + }) + + it('read-only keeps the tree readable/executable and /dev/null writable', async () => { + const workdir = await tempDir(tmpdir()) + const sandbox = await provider() + const { result } = runConfined(sandbox, 'ls / > /dev/null && echo dev-ok', { mode: 'read-only', workspaceRoot: workdir }) + expect(result.status).toBe(0) + expect(result.stdout).toBe('dev-ok\n') + }) + + it('read-only denies a write beneath the host /dev (the /dev/shm tmpfs must stay untouched)', async () => { + // The grant is /dev/null the FILE, not /dev the directory: /dev/shm is a + // world-writable host tmpfs, and a write landing there would be exactly + // the persistent host effect read-only promises never happen. + const workdir = await tempDir(tmpdir()) + const sandbox = await provider() + const target = `/dev/shm/dsh-landlock-e2e-${process.pid}` + const { result } = runConfined(sandbox, `echo hi > ${target}`, { mode: 'read-only', workspaceRoot: workdir }) + expect(result.status).not.toBe(0) + expect(existsSync(target)).toBe(false) + }) + + it('workspace-write lands a write inside the workspace root and still denies one beside it', async () => { + const workdir = await tempDir(homedir()) + const outside = await tempDir(homedir()) + const sandbox = await provider() + + const inside = runConfined(sandbox, `printf landlock-ok > ${workdir}/allowed.txt`, { mode: 'workspace-write', workspaceRoot: workdir }) + expect(inside.result.status).toBe(0) + expect(readFileSync(join(workdir, 'allowed.txt'), 'utf8')).toBe('landlock-ok') + + const denied = runConfined(sandbox, `echo hi > ${outside}/denied.txt`, { mode: 'workspace-write', workspaceRoot: workdir }) + expect(denied.result.status).not.toBe(0) + expect(existsSync(join(outside, 'denied.txt'))).toBe(false) + }) + + it('workspace-write grants the host /tmp (the documented Landlock-profile difference)', async () => { + const workdir = await tempDir(homedir()) + const scratch = await tempDir(tmpdir()) + const sandbox = await provider() + const { result } = runConfined(sandbox, `printf tmp-ok > ${scratch}/scratch.txt`, { mode: 'workspace-write', workspaceRoot: workdir }) + expect(result.status).toBe(0) + expect(readFileSync(join(scratch, 'scratch.txt'), 'utf8')).toBe('tmp-ok') + }) +}) diff --git a/packages/sandbox/sandbox-local/tests/local.spec.ts b/packages/sandbox/sandbox-local/tests/local.spec.ts new file mode 100644 index 0000000000..d12f4970cb --- /dev/null +++ b/packages/sandbox/sandbox-local/tests/local.spec.ts @@ -0,0 +1,349 @@ +/** + * LocalSandboxProvider tests. No real runner is assumed to exist on the test + * host: `runnerCommand` injects deterministic runner argvs, and `internals` + * injects probe verdicts plus fake Landlock launcher / `sandbox-exec` + * scripts, so profile dialects, ladder selection, verdict caching, + * probe-report parsing, per-rung denial signatures, and fail-closed behavior + * are all exercised through the real `confine()` path. + */ + +import { mkdtempSync, realpathSync, writeFileSync } from 'node:fs' +import { tmpdir } from 'node:os' +import { join } from 'node:path' +import { describe, expect, it, vi } from 'vitest' +import { Context } from 'cordis' +import { SANDBOX_UNAVAILABLE, SandboxUnavailableError } from '@deepseek-ai/dsh-sandbox' +import type { SandboxPolicy } from '@deepseek-ai/dsh-sandbox' +import { + bwrapProfileArgs, + landlockProfileArgs, + LocalSandboxProvider, + seatbeltProfileArgs, +} from '@deepseek-ai/dsh-sandbox-local' +import type { Config } from '@deepseek-ai/dsh-sandbox-local' + +const RO: SandboxPolicy = { mode: 'read-only', workspaceRoot: '/ws' } +const WW: SandboxPolicy = { mode: 'workspace-write', workspaceRoot: '/ws' } + +async function setup(config: Config = {}, internals: LocalSandboxProvider['internals'] = {}) { + const ctx = new Context() + await ctx.plugin(LocalSandboxProvider, config) + const sandbox = ctx.sandbox as LocalSandboxProvider + sandbox.internals = internals + return { ctx, sandbox } +} + +/** Write an executable fake `landlock-run` that answers `--probe` with `report`. */ +function fakeLauncher(report = 'landlock: fully enforced'): string { + const dir = mkdtempSync(join(tmpdir(), 'dsh-fake-landlock-')) + const launcher = join(dir, 'landlock-run') + writeFileSync(launcher, `#!/bin/sh\nif [ "$1" = "--probe" ]; then echo "${report}"; exit 0; fi\nexit 125\n`, { mode: 0o755 }) + return launcher +} + +/** Write an executable fake `sandbox-exec` that exits `status` for any invocation. */ +function fakeSeatbeltExec(status: number): string { + const dir = mkdtempSync(join(tmpdir(), 'dsh-fake-seatbelt-')) + const exec = join(dir, 'sandbox-exec') + writeFileSync(exec, `#!/bin/sh\nexit ${status}\n`, { mode: 0o755 }) + return exec +} + +/** The seatbelt read-only profile — every seatbelt profile starts with these forms. */ +const SEATBELT_RO_PROFILE = '(version 1) (allow default) (deny file-write*) (allow file-write* (literal "/dev/null"))' + +describe('profile dialects', () => { + it('bwrap read-only: whole tree read-only with fresh /dev and /proc, no writable mounts', () => { + expect(bwrapProfileArgs(RO)).toEqual(['--ro-bind', '/', '/', '--dev', '/dev', '--proc', '/proc', '--die-with-parent']) + }) + + it('bwrap workspace-write: adds an ephemeral /tmp and rebinds the workspace root', () => { + expect(bwrapProfileArgs(WW)).toEqual([ + '--ro-bind', '/', '/', '--dev', '/dev', '--proc', '/proc', '--die-with-parent', + '--tmpfs', '/tmp', '--bind', '/ws', '/ws', + ]) + }) + + it('landlock read-only: readable tree plus a writable /dev/null, nothing else', () => { + // /dev/null specifically, NOT /dev: a whole-/dev grant would let confined + // commands write real host paths beneath it (/dev/shm) under read-only. + expect(landlockProfileArgs(RO)).toEqual(['--ro', '/', '--rw', '/dev/null']) + }) + + it('landlock workspace-write: adds the host /tmp and the workspace root', () => { + expect(landlockProfileArgs(WW)).toEqual(['--ro', '/', '--rw', '/dev/null', '--rw', '/tmp', '--rw', '/ws']) + }) + + it('seatbelt read-only: allow-default with every file write denied except the /dev/null literal', () => { + expect(seatbeltProfileArgs(RO)).toEqual(['-p', SEATBELT_RO_PROFILE]) + }) + + it('seatbelt workspace-write: one more allow for the canonicalized workspace root, /tmp, and the user temp dir', () => { + // `/ws` does not exist, so it is granted as spelled (the canonicalization + // fallback); `/tmp` and `os.tmpdir()` exist everywhere and are granted + // CANONICALIZED — Seatbelt matches resolved paths (`/tmp` IS + // `/private/tmp` on macOS), and both collapse to one grant on hosts + // where they resolve to the same directory. + const roots = [...new Set(['/ws', realpathSync('/tmp'), realpathSync(tmpdir())])] + const allow = `(allow file-write* ${roots.map(root => `(subpath "${root}")`).join(' ')})` + expect(seatbeltProfileArgs(WW)).toEqual(['-p', `${SEATBELT_RO_PROFILE} ${allow}`]) + }) + + it('seatbelt workspace-write dedups a workspace root that already IS the temp dir', () => { + const profile = seatbeltProfileArgs({ mode: 'workspace-write', workspaceRoot: tmpdir() })[1] as string + const grant = `(subpath "${realpathSync(tmpdir())}")` + expect(profile).toContain(grant) + expect(profile.split(grant)).toHaveLength(2) + }) +}) + +describe('runnerCommand config', () => { + it('a non-empty runnerCommand skips the chain: runner argv + bwrap-shaped profile + -- + caller argv, asserted full', async () => { + const probeBwrap = vi.fn(() => false) + const probeLandlock = vi.fn(() => 'unusable' as const) + const probeSeatbelt = vi.fn(() => false) + const { sandbox } = await setup({ runnerCommand: ['fake-runner', '--flag'] }, { probeBwrap, probeLandlock, probeSeatbelt }) + const confined = sandbox.confine(['bash', '-c', 'echo hi'], WW) + expect(confined).toEqual({ + argv: ['fake-runner', '--flag', ...bwrapProfileArgs(WW), '--', 'bash', '-c', 'echo hi'], + enforcement: 'full', + // An operator runner's kernel mechanism is unknown: both Linux + // file-denial dialects, never bare EPERM. + denialSignatures: ['read-only file system', 'permission denied'], + // The runner's own dialect is unknown, but the consumer re-joins the + // wrap through an outer `bash -c 'exec …'` — a missing or + // unexecutable runner fails with the OUTER shell's argv0-scoped + // shapes, and those classify as sandbox failures like any rung. + runnerFailureSignatures: [ + 'exec: fake-runner: not found', + 'fake-runner: No such file or directory', + 'fake-runner: Permission denied', + ], + }) + expect(probeBwrap).not.toHaveBeenCalled() + expect(probeLandlock).not.toHaveBeenCalled() + expect(probeSeatbelt).not.toHaveBeenCalled() + }) + + it('an EMPTY runnerCommand means unconfigured: the platform chain still gates the wrap', async () => { + const probeBwrap = vi.fn(() => false) + const { sandbox } = await setup({ runnerCommand: [] }, { platform: 'linux', probeBwrap, probeLandlock: () => 'unusable' }) + expect(() => sandbox.confine(['true'], RO)).toThrow(SandboxUnavailableError) + expect(probeBwrap).toHaveBeenCalledTimes(1) + }) +}) + +describe('the platform chains', () => { + it('linux probes bwrap first: a passing probe wraps with the bwrap dialect at full enforcement', async () => { + const probeBwrap = vi.fn(() => true) + const probeLandlock = vi.fn(() => 'full' as const) + const { sandbox } = await setup({}, { platform: 'linux', probeBwrap, probeLandlock }) + const confined = sandbox.confine(['true'], RO) + expect(confined).toEqual({ + argv: ['bwrap', ...bwrapProfileArgs(RO), '--', 'true'], + enforcement: 'full', + denialSignatures: ['read-only file system'], + runnerFailureSignatures: ['bwrap: '], + }) + expect(probeLandlock).not.toHaveBeenCalled() + }) + + it('linux falls back to the launcher when the bwrap probe fails, speaking the landlock dialect', async () => { + const probeBwrap = vi.fn(() => false) + const probeLandlock = vi.fn(() => 'full' as const) + const launcher = fakeLauncher() + const { sandbox } = await setup({}, { platform: 'linux', probeBwrap, probeLandlock, landlockLauncher: launcher }) + const confined = sandbox.confine(['bash', '-c', 'echo hi'], WW) + expect(confined).toEqual({ + argv: [launcher, ...landlockProfileArgs(WW), '--', 'bash', '-c', 'echo hi'], + enforcement: 'full', + denialSignatures: ['permission denied'], + runnerFailureSignatures: ['landlock-run: '], + }) + expect(probeLandlock).toHaveBeenCalledWith(launcher) + }) + + it('darwin selects its sole candidate WITHOUT probing: nothing to arbitrate', async () => { + // The safety property moves to execution time: an unusable sandbox-exec + // refuses to run the command, and the wrap's runnerFailureSignatures let + // the consumer classify that as a sandbox failure, not a task failure. + const probeSeatbelt = vi.fn(() => true) + const { sandbox } = await setup({}, { platform: 'darwin', probeSeatbelt }) + const confined = sandbox.confine(['bash', '-c', 'echo hi'], RO) + expect(confined).toEqual({ + argv: ['sandbox-exec', ...seatbeltProfileArgs(RO), '--', 'bash', '-c', 'echo hi'], + enforcement: 'full', + denialSignatures: ['operation not permitted'], + runnerFailureSignatures: ['sandbox-exec: '], + }) + expect(probeSeatbelt).not.toHaveBeenCalled() + }) + + it('a platform with no chain fails closed without a single probe: the command never runs', async () => { + const probeBwrap = vi.fn(() => true) + const probeLandlock = vi.fn(() => 'full' as const) + const probeSeatbelt = vi.fn(() => true) + const { sandbox } = await setup({}, { platform: 'freebsd', probeBwrap, probeLandlock, probeSeatbelt }) + expect(() => sandbox.confine(['true'], RO)).toThrow(expect.objectContaining({ name: 'SandboxUnavailableError', code: SANDBOX_UNAVAILABLE })) + expect(probeBwrap).not.toHaveBeenCalled() + expect(probeLandlock).not.toHaveBeenCalled() + expect(probeSeatbelt).not.toHaveBeenCalled() + }) + + it('win32 is a reserved EMPTY chain: fails closed identically until a Windows runner fills it', async () => { + // The slot exists so Windows support is an additive fill-in (chain entry + // + runner union member), never a redesign — and reserving it must not + // weaken the fail-closed end in the meantime. + const { sandbox } = await setup({}, { platform: 'win32' }) + expect(() => sandbox.confine(['true'], RO)).toThrow(expect.objectContaining({ code: SANDBOX_UNAVAILABLE })) + }) + + it('caches the verdict for the provider lifetime: one chain walk across wraps', async () => { + const probeBwrap = vi.fn(() => true) + const { sandbox } = await setup({}, { platform: 'linux', probeBwrap }) + sandbox.confine(['true'], RO) + sandbox.confine(['true'], WW) + expect(probeBwrap).toHaveBeenCalledTimes(1) + }) + + it('the unavailable verdict is cached too, and the error is structured', async () => { + const probeBwrap = vi.fn(() => false) + const probeLandlock = vi.fn(() => 'unusable' as const) + const { sandbox } = await setup({}, { platform: 'linux', probeBwrap, probeLandlock }) + expect(() => sandbox.confine(['true'], RO)).toThrow(expect.objectContaining({ name: 'SandboxUnavailableError', code: SANDBOX_UNAVAILABLE })) + expect(() => sandbox.confine(['true'], RO)).toThrow(SandboxUnavailableError) + expect(probeBwrap).toHaveBeenCalledTimes(1) + expect(probeLandlock).toHaveBeenCalledTimes(1) + }) + + it('a multi-rung chain probes a seatbelt rung like any other (the walk, not the platform table, decides)', async () => { + // The product chains reach seatbelt only as darwin's sole (unprobed) + // candidate; the chain seam exercises the probing path it would take in + // a grown chain, keeping the default seatbelt probe honest. + const exec = fakeSeatbeltExec(0) + const probeBwrap = vi.fn(() => false) + const { sandbox } = await setup({}, { chain: ['bwrap', 'seatbelt'], probeBwrap, seatbeltExec: exec }) + const confined = sandbox.confine(['true'], RO) + expect(confined.argv[0]).toBe(exec) + expect(confined.enforcement).toBe('full') + expect(probeBwrap).toHaveBeenCalledTimes(1) + }) + + it('a rogue chain entry throws via the probe walk\'s exhaustiveness guard (closed union)', async () => { + // Same convention as the wrap switch below: the union is closed, so a + // runner added later fails to compile at the probe switch instead of + // silently selecting without a probe. Only a cast can reach the guard. + const { sandbox } = await setup({}, { chain: ['chroot', 'bwrap'] as unknown as readonly ['bwrap'] }) + expect(() => sandbox.confine(['true'], RO)).toThrow('unreachable variant') + }) + + it('a rogue cached runner tag throws via the exhaustiveness guard (closed union)', async () => { + // The wrap switches on the chain verdict's runner tag and ends with + // assertNever: a rogue tag (only reachable by a cast — the union is + // closed and chainVerdict writes only its own literals) must throw, so a + // runner added later fails to compile at the switch instead of silently + // wrapping with another runner's dialect. + const { sandbox } = await setup() + ;(sandbox as unknown as { selectedRunner: unknown }).selectedRunner = { runner: 'chroot', enforcement: 'full' } + expect(() => sandbox.confine(['true'], RO)).toThrow('unreachable variant') + }) + + it('runs the real default probes on the linux chain when none are injected (usable here or fail closed there)', async () => { + // Pinning the platform (not the probes) makes the REAL defaultProbeBwrap + // spawn run on every host: bwrap answers on a Linux box, ENOENT reads as + // an unusable rung anywhere else — either way the walk is genuine. + const { sandbox } = await setup({}, { platform: 'linux' }) + const verdict = (() => { + try { + sandbox.confine(['true'], RO) + return 'usable' + } catch (error: unknown) { + if (error instanceof SandboxUnavailableError) return 'unavailable' + throw error + } + })() + expect(['usable', 'unavailable']).toContain(verdict) + }) + + it('walks the real platform chain when nothing is injected (usable here or fail closed there)', async () => { + const { sandbox } = await setup({}, {}) + const verdict = (() => { + try { + sandbox.confine(['true'], RO) + return 'usable' + } catch (error: unknown) { + if (error instanceof SandboxUnavailableError) return 'unavailable' + throw error + } + })() + expect(['usable', 'unavailable']).toContain(verdict) + }) +}) + +describe('the default landlock probe (launcher CLI contract)', () => { + it('parses a fully-enforced probe report as full enforcement', async () => { + const { sandbox } = await setup({}, { platform: 'linux', probeBwrap: () => false, landlockLauncher: fakeLauncher() }) + expect(sandbox.confine(['true'], RO).enforcement).toBe('full') + }) + + it('parses a partially-enforced (older-ABI) probe report as partial enforcement', async () => { + const launcher = fakeLauncher('landlock: partially enforced (older ABI)') + const { sandbox } = await setup({}, { platform: 'linux', probeBwrap: () => false, landlockLauncher: launcher }) + expect(sandbox.confine(['true'], RO).enforcement).toBe('partial') + }) + + it('reads a failing launcher as unusable: the chain ends and fails closed', async () => { + const dir = mkdtempSync(join(tmpdir(), 'dsh-fake-landlock-')) + const launcher = join(dir, 'landlock-run') + writeFileSync(launcher, '#!/bin/sh\nexit 125\n', { mode: 0o755 }) + const { sandbox } = await setup({}, { platform: 'linux', probeBwrap: () => false, landlockLauncher: launcher }) + expect(() => sandbox.confine(['true'], RO)).toThrow(expect.objectContaining({ code: SANDBOX_UNAVAILABLE })) + }) +}) + +describe('probeTimeoutMs config', () => { + it('rejects 0 at construction: Node treats a 0 spawnSync timeout as UNBOUNDED, the opposite of the field', async () => { + const ctx = new Context() + await expect(ctx.plugin(LocalSandboxProvider, { probeTimeoutMs: 0 })) + .rejects.toThrow(/probeTimeoutMs must be a positive finite number/) + }) + + it('bounds the default probes: a launcher slower than the configured timeout reads as unusable', async () => { + // The same sleeping launcher passes under the default 5000ms budget and + // fails under a 250ms one — the config demonstrably reaches spawnSync. + const dir = mkdtempSync(join(tmpdir(), 'dsh-slow-landlock-')) + const launcher = join(dir, 'landlock-run') + writeFileSync(launcher, '#!/bin/sh\nsleep 1\necho "landlock: fully enforced"\nexit 0\n', { mode: 0o755 }) + + const patient = await setup({}, { platform: 'linux', probeBwrap: () => false, landlockLauncher: launcher }) + expect(patient.sandbox.confine(['true'], RO).enforcement).toBe('full') + + const impatient = await setup( + { probeTimeoutMs: 250 }, + { platform: 'linux', probeBwrap: () => false, landlockLauncher: launcher }, + ) + expect(() => impatient.sandbox.confine(['true'], RO)).toThrow(expect.objectContaining({ code: SANDBOX_UNAVAILABLE })) + }) +}) + +describe('the default seatbelt probe (sandbox-exec contract)', () => { + // The product chains reach seatbelt only unprobed (darwin's sole + // candidate), so the default probe's contract is pinned through the chain + // seam: a grown chain must probe it like any other rung. + it('selects the rung when the executable applies the read-only profile and exits 0', async () => { + const exec = fakeSeatbeltExec(0) + const { sandbox } = await setup({}, { chain: ['bwrap', 'seatbelt'], probeBwrap: () => false, seatbeltExec: exec }) + const confined = sandbox.confine(['true'], RO) + expect(confined).toEqual({ + argv: [exec, ...seatbeltProfileArgs(RO), '--', 'true'], + enforcement: 'full', + denialSignatures: ['operation not permitted'], + runnerFailureSignatures: ['sandbox-exec: '], + }) + }) + + it('reads a failing executable as unusable: the chain ends and fails closed', async () => { + const { sandbox } = await setup({}, { chain: ['bwrap', 'seatbelt'], probeBwrap: () => false, seatbeltExec: fakeSeatbeltExec(1) }) + expect(() => sandbox.confine(['true'], RO)).toThrow(expect.objectContaining({ code: SANDBOX_UNAVAILABLE })) + }) +}) diff --git a/packages/sandbox/sandbox-local/tests/packed-install.e2e.ts b/packages/sandbox/sandbox-local/tests/packed-install.e2e.ts new file mode 100644 index 0000000000..9d0e8ade4f --- /dev/null +++ b/packages/sandbox/sandbox-local/tests/packed-install.e2e.ts @@ -0,0 +1,173 @@ +import { spawnSync } from 'node:child_process' +import { accessSync, constants, existsSync, mkdtempSync, readFileSync, writeFileSync } from 'node:fs' +import { rm } from 'node:fs/promises' +import { tmpdir } from 'node:os' +import { join } from 'node:path' +import { fileURLToPath } from 'node:url' +import { afterAll, beforeAll, describe, expect, it } from 'vitest' + +/** + * KEYLESS publish-path rehearsal for this package's own distribution: the + * provider must work from its PACKED tarball plus its REGISTRY launcher + * dependency, not the git checkout. `pnpm pack` produces the EXACT bytes + * `pnpm publish` would upload; this suite packs the workspace closure + * (`dsh-sandbox-local` + its `@deepseek-ai` peers), installs the tarballs + * into a throwaway consumer OUTSIDE the repo — npm resolving the + * `node-addon-landlock-run` dependency (and its os/cpu-selected platform + * package) from the public registry, the real consumer path — and drives + * the INSTALLED packages under plain `node`: no tsx, no tsconfig paths, no + * workspace resolution, so a `files`-list omission, a broken launcher + * dependency, or a mode-stripped binary fails here instead of at the first + * real install. + * + * World-proofs: the registry-installed launcher carries this host's ELF + * architecture and IS executable (a tarball that loses the mode bit would + * otherwise masquerade as a non-enforcing kernel — the fail-closed branch + * below must never absorb that), and the installed provider confines a real + * process THROUGH it (bwrap forced off) — or fails closed when the running + * kernel does not enforce Landlock, which is itself the installed + * fail-closed contract. Byte provenance of the launcher is the + * `node-addon-landlock-run` repository's own release-pipeline concern. + * + * Self-skips off Linux or when the built `lib/` is absent (run + * `pnpm run build` first — CI's landlock legs do). + */ + +const packageDir = fileURLToPath(new URL('..', import.meta.url)) +const repoRoot = fileURLToPath(new URL('../../../..', import.meta.url)) + +/** The closure the consumer needs: the package and its transitive `@deepseek-ai` peers; the launcher family arrives from the registry. */ +const WORKSPACE_CLOSURE = [ + 'packages/sandbox/sandbox-local', + 'packages/sandbox/sandbox', + 'packages/llm/llm', + 'packages/util/brand', +] + +/** ELF `e_machine` (offset 18, LE) for this host: x86-64 = 62, AArch64 = 183. */ +const E_MACHINE = { x64: 62, arm64: 183 }[process.arch as 'x64' | 'arm64'] + +const packable = process.platform === 'linux' + && E_MACHINE !== undefined + && existsSync(join(packageDir, 'lib', 'index.js')) + +let consumerDir = '' +let workDir = '' +/** The consumer script's JSON verdict (see its source below). */ +let verdict: { + launcher: string + launcherExists: boolean + enforcing: boolean + wrapArgv0?: string + enforcement?: string + exitCode?: number | null + stderrHasDialect?: boolean + confineOutcome?: string +} = { launcher: '', launcherExists: false, enforcing: false } + +describe.skipIf(!packable)('sandbox-local: packed-tarball distribution (publish-path rehearsal)', () => { + beforeAll(async () => { + const packDest = mkdtempSync(join(tmpdir(), 'dsh-pack-')) + consumerDir = mkdtempSync(join(tmpdir(), 'dsh-packed-consumer-')) + workDir = mkdtempSync(join(tmpdir(), 'dsh-packed-work-')) + + // Pack each closure member with the exact bytes publish would upload. + const tarballs: string[] = [] + for (const pkg of WORKSPACE_CLOSURE) { + const pack = spawnSync('pnpm', ['pack', '--pack-destination', packDest], { + cwd: join(repoRoot, pkg), + encoding: 'utf8', + timeout: 120_000, + }) + expect(pack.status, `pnpm pack failed for ${pkg}:\n${pack.stdout}\n${pack.stderr}`).toBe(0) + const lines = pack.stdout.trim().split('\n') + tarballs.push(lines[lines.length - 1] as string) + } + + // A real consumer: plain ESM project, tarballs installed by npm — the + // peer ranges (^0.0.1) resolve to the tarball versions, cordis pins to + // the peer range's rc, and `node-addon-landlock-run` (with its + // os/cpu-selected platform package, an OPTIONAL dependency of the entry + // — so no `--omit=optional` here) comes from the public registry. + writeFileSync(join(consumerDir, 'package.json'), JSON.stringify({ name: 'dsh-packed-consumer', private: true, type: 'module' })) + const install = spawnSync('npm', ['install', '--no-audit', '--no-fund', ...tarballs, 'cordis@4.0.0-rc.6'], { + cwd: consumerDir, + encoding: 'utf8', + timeout: 300_000, + }) + expect(install.status, `npm install failed:\n${install.stdout}\n${install.stderr}`).toBe(0) + + // The consumer script runs under PLAIN node against the installed + // packages and reports a JSON verdict; every assertion happens back in + // the test. bwrap is forced off so the wrap must select the INSTALLED + // launcher; a non-enforcing kernel must surface the fail-closed error. + writeFileSync(join(consumerDir, 'consumer.mjs'), ` + import { spawnSync } from 'node:child_process' + import { existsSync } from 'node:fs' + import { Context } from 'cordis' + import { launcherPath } from 'node-addon-landlock-run' + import { LocalSandboxProvider } from '@deepseek-ai/dsh-sandbox-local' + const ctx = new Context() + await ctx.plugin(LocalSandboxProvider, {}) + const sandbox = ctx.sandbox + sandbox.internals = { probeBwrap: () => false } + const launcher = launcherPath() + const probe = spawnSync(launcher, ['--probe'], { encoding: 'utf8', timeout: 5000 }) + const out = { launcher, launcherExists: existsSync(launcher), enforcing: probe.status === 0 } + const workdir = process.argv[2] + if (out.enforcing) { + const confined = sandbox.confine(['bash', '-c', \`echo hi > \${workdir}/denied.txt\`], { mode: 'read-only', workspaceRoot: workdir }) + out.wrapArgv0 = confined.argv[0] + out.enforcement = confined.enforcement + const run = spawnSync(confined.argv[0], confined.argv.slice(1), { encoding: 'utf8', timeout: 30000 }) + out.exitCode = run.status + out.stderrHasDialect = /permission denied/i.test(run.stderr) + } else { + try { + sandbox.confine(['true'], { mode: 'read-only', workspaceRoot: workdir }) + out.confineOutcome = 'wrapped' + } catch (error) { + out.confineOutcome = error?.code === 'SANDBOX_UNAVAILABLE' ? 'fail-closed' : String(error) + } + } + console.log(JSON.stringify(out)) + `) + const consumer = spawnSync('node', ['consumer.mjs', workDir], { cwd: consumerDir, encoding: 'utf8', timeout: 60_000 }) + expect(consumer.status, `consumer script failed:\n${consumer.stdout}\n${consumer.stderr}`).toBe(0) + verdict = JSON.parse(consumer.stdout.trim().split('\n').pop() as string) as typeof verdict + }, 480_000) + + afterAll(async () => { + await Promise.all([consumerDir, workDir].filter(Boolean).map(dir => rm(dir, { recursive: true, force: true }))) + }) + + it('installs the registry launcher for this host: present, EXECUTABLE, right ELF arch', () => { + const installed = join(consumerDir, 'node_modules', `node-addon-landlock-run-linux-${process.arch}`, 'bin', 'landlock-run') + expect(existsSync(installed), 'platform package missing from the installed tree').toBe(true) + // A tarball or extraction step that strips the mode bit would leave the + // probe failing exactly like a non-enforcing kernel — assert it apart. + expect(() => { accessSync(installed, constants.X_OK) }, 'installed launcher is not executable').not.toThrow() + expect(readFileSync(installed).readUInt16LE(18), 'ELF e_machine').toBe(E_MACHINE) + }) + + it('the installed provider resolves the launcher INSIDE the consumer node_modules platform package', () => { + expect(verdict.launcher) + .toBe(join(consumerDir, 'node_modules', `node-addon-landlock-run-linux-${process.arch}`, 'bin', 'landlock-run')) + }) + + it('confines through the installed launcher (enforcing kernel) or fails closed (non-enforcing) — never unconfined', async () => { + // Fail-closed is only the acceptable outcome when the installed binary + // IS present and executable and the kernel merely does not enforce — + // the first test pins that apart, so nothing hides behind this branch. + expect(verdict.launcherExists, 'installed launcher missing').toBe(true) + if (verdict.enforcing) { + expect(verdict.wrapArgv0).toBe(verdict.launcher) + expect(['full', 'partial']).toContain(verdict.enforcement) + expect(verdict.exitCode).not.toBe(0) + expect(verdict.stderrHasDialect, 'kernel denial text must match the advertised dialect').toBe(true) + expect(existsSync(join(workDir, 'denied.txt'))).toBe(false) + } else { + expect(verdict.confineOutcome).toBe('fail-closed') + } + }) +}) diff --git a/packages/sandbox/sandbox-local/tests/seatbelt.e2e.ts b/packages/sandbox/sandbox-local/tests/seatbelt.e2e.ts new file mode 100644 index 0000000000..7136e4e524 --- /dev/null +++ b/packages/sandbox/sandbox-local/tests/seatbelt.e2e.ts @@ -0,0 +1,120 @@ +import { spawnSync } from 'node:child_process' +import { existsSync, readFileSync } from 'node:fs' +import { mkdtemp, rm } from 'node:fs/promises' +import { homedir, tmpdir } from 'node:os' +import { join } from 'node:path' +import { afterEach, describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import type { SandboxPolicy } from '@deepseek-ai/dsh-sandbox' +import { LocalSandboxProvider, seatbeltProfileArgs } from '@deepseek-ai/dsh-sandbox-local' + +/** + * KEYLESS Seatbelt integration proof for the BACKEND: the REAL macOS + * `sandbox-exec` confining REAL processes through `confine()` + a direct + * spawn of the returned argv, with the Linux rungs forced off so the ladder + * lands on Seatbelt. Verifies the WORLD (files exist or don't) and that the + * kernel's denial text matches the dialect the wrap advertises; the + * through-`ctx.bash` consumer proof lives with `@deepseek-ai/dsh-bash-sandbox`. + * + * Self-skips wherever the functional probe fails — every non-macOS host, or + * a macOS whose `sandbox-exec` refuses the profile. + * + * Workspaces for the workspace-write tests live under the HOME directory on + * purpose: `workspace-write` grants `/tmp` and the per-user temp dir + * wholesale (the documented Seatbelt-profile temp areas), so only a + * workspace OUTSIDE both proves the workspace-root grant itself. + */ + +const probe = spawnSync('sandbox-exec', [...seatbeltProfileArgs({ mode: 'read-only', workspaceRoot: '/' }), '--', 'true'], { timeout: 5_000, stdio: 'ignore' }) +const seatbeltUsable = probe.status === 0 + +let ctx: Context | undefined +const tempDirs: string[] = [] + +afterEach(async () => { + await ctx?.fiber.dispose() + ctx = undefined + await Promise.all(tempDirs.splice(0).map(dir => rm(dir, { recursive: true, force: true }))) +}) + +async function tempDir(base: string): Promise { + const dir = await mkdtemp(join(base, 'dsh-seatbelt-e2e-')) + tempDirs.push(dir) + return dir +} + +async function provider(): Promise { + ctx = new Context() + await ctx.plugin(LocalSandboxProvider, {}) + const sandbox = ctx.sandbox as LocalSandboxProvider + sandbox.internals = { probeBwrap: () => false, probeLandlock: () => 'unusable' } + return sandbox +} + +/** Confine a shell command under `policy` and run it for real; returns the spawn result and the wrap's facts. */ +function runConfined(sandbox: LocalSandboxProvider, command: string, policy: SandboxPolicy) { + const confined = sandbox.confine(['bash', '-c', command], policy) + const result = spawnSync(confined.argv[0] as string, confined.argv.slice(1), { timeout: 30_000, encoding: 'utf8' }) + return { result, confined } +} + +describe.skipIf(!seatbeltUsable)('sandbox-local: real Seatbelt confinement through sandbox-exec', () => { + it('read-only denies a write — the file must NOT exist, and the kernel speaks the advertised dialect', async () => { + const workdir = await tempDir(tmpdir()) + const sandbox = await provider() + const { result, confined } = runConfined(sandbox, `echo hi > ${workdir}/denied.txt`, { mode: 'read-only', workspaceRoot: workdir }) + expect(result.status).not.toBe(0) + expect(confined.enforcement).toBe('full') + // The wrap's denialSignatures must be what the kernel actually prints. + expect(result.stderr.toLowerCase()).toContain('operation not permitted') + expect(existsSync(join(workdir, 'denied.txt'))).toBe(false) + }) + + it('read-only keeps the tree readable/executable and /dev/null writable', async () => { + const workdir = await tempDir(tmpdir()) + const sandbox = await provider() + const { result } = runConfined(sandbox, 'ls / > /dev/null && echo dev-ok', { mode: 'read-only', workspaceRoot: workdir }) + expect(result.status).toBe(0) + expect(result.stdout).toBe('dev-ok\n') + }) + + it('read-only grants no temp area: a write under the user temp dir is denied too', async () => { + // The per-user darwin temp dir is a workspace-write grant, not a + // read-only one — under read-only the only write-shaped path is /dev/null. + const workdir = await tempDir(tmpdir()) + const sandbox = await provider() + const target = join(workdir, 'tmp-denied.txt') + const { result } = runConfined(sandbox, `echo hi > ${target}`, { mode: 'read-only', workspaceRoot: await tempDir(homedir()) }) + expect(result.status).not.toBe(0) + expect(existsSync(target)).toBe(false) + }) + + it('workspace-write lands a write inside the workspace root and still denies one beside it', async () => { + const workdir = await tempDir(homedir()) + const outside = await tempDir(homedir()) + const sandbox = await provider() + + const inside = runConfined(sandbox, `printf seatbelt-ok > ${workdir}/allowed.txt`, { mode: 'workspace-write', workspaceRoot: workdir }) + expect(inside.result.status).toBe(0) + expect(readFileSync(join(workdir, 'allowed.txt'), 'utf8')).toBe('seatbelt-ok') + + const denied = runConfined(sandbox, `echo hi > ${outside}/denied.txt`, { mode: 'workspace-write', workspaceRoot: workdir }) + expect(denied.result.status).not.toBe(0) + expect(existsSync(join(outside, 'denied.txt'))).toBe(false) + }) + + it('workspace-write grants /tmp and the user temp dir (the documented Seatbelt-profile temp areas)', async () => { + const workdir = await tempDir(homedir()) + const hostTmp = await tempDir('/tmp') + const userTmp = await tempDir(tmpdir()) + const sandbox = await provider() + const { result } = runConfined( + sandbox, + `printf tmp-ok > ${hostTmp}/scratch.txt && printf user-tmp-ok > ${userTmp}/scratch.txt`, + { mode: 'workspace-write', workspaceRoot: workdir }, + ) + expect(result.status).toBe(0) + expect(readFileSync(join(hostTmp, 'scratch.txt'), 'utf8')).toBe('tmp-ok') + expect(readFileSync(join(userTmp, 'scratch.txt'), 'utf8')).toBe('user-tmp-ok') + }) +}) diff --git a/packages/sandbox/sandbox-local/tsconfig.json b/packages/sandbox/sandbox-local/tsconfig.json new file mode 100644 index 0000000000..c756b6af69 --- /dev/null +++ b/packages/sandbox/sandbox-local/tsconfig.json @@ -0,0 +1,27 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../../vendor/schemastery" + }, + { + "path": "../../llm/llm" + }, + { + "path": "../sandbox" + } + ] +} diff --git a/packages/sandbox/sandbox/README.md b/packages/sandbox/sandbox/README.md new file mode 100644 index 0000000000..c63b9da5de --- /dev/null +++ b/packages/sandbox/sandbox/README.md @@ -0,0 +1,11 @@ +# @deepseek-ai/dsh-sandbox + +Abstract process-sandbox seam. Owns the `ctx.sandbox` service contract ([`SandboxProvider`](src/index.ts)) and the confinement vocabulary the harness shares: `SandboxMode` (`read-only` / `workspace-write` / `danger-full-access`, file effects only), `SandboxEnforcement` (`full` / `partial`, per kernel ABI), `SandboxPolicy` (per-CALL policy — mode + workspace root), and the fail-closed `SANDBOX_UNAVAILABLE` error. Interface package of the [capability-seam split](../../../docs/rfc/implemented/architecture/2026-06-13-capability-seams.md): depends only on cordis (+ the harness error base), never on a backend. + +The contract in one line: `ctx.sandbox.confine(argv, policy)` returns the argv to spawn INSTEAD of your own — wrapped so the process (and everything it spawns) runs confined — plus two facts about the selected backend: the enforcement completeness it achieves and its denial dialect (`denialSignatures`, the stderr substrings its kernel prints on a denied file effect — what stderr-inferring consumers match instead of a cross-backend union); when no backend is usable it throws rather than passing the argv through unconfined. + +Policy rides the call, not the provider: two consumers may confine under different policies at the same instant (bash under `read-only` while a confined child agent keeps its state directory writable), and an approved escalated retry is just a new call with a wider policy. + +**Same-world confinement only.** A backend shares the host's filesystem and kernel (`bwrap`, Landlock, Seatbelt); `workspaceRoot` names a real host path. Containers, microVMs, and remote executors are NOT backends of this seam — they replace whole capability implementations (`ctx.bash`, `ctx.fs`) as environment-coherent groups. The boundary and its rationale: [the sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md). + +Implementations: [`@deepseek-ai/dsh-sandbox-local`](../sandbox-local/) (Linux: `bwrap`, else the per-platform Landlock launcher; macOS: `sandbox-exec`/Seatbelt). The staged first consumer is the sandboxed bash executor (wrapping `['bash', '-c', command]`). diff --git a/packages/sandbox/sandbox/package.json b/packages/sandbox/sandbox/package.json new file mode 100644 index 0000000000..b37ef714ea --- /dev/null +++ b/packages/sandbox/sandbox/package.json @@ -0,0 +1,32 @@ +{ + "name": "@deepseek-ai/dsh-sandbox", + "description": "Abstract process-sandbox seam (ctx.sandbox) for the DeepSeek Harness: same-world confinement vocabulary and the SandboxProvider contract", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-llm": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "devDependencies": { + "@deepseek-ai/dsh-llm": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/sandbox/sandbox/src/index.ts b/packages/sandbox/sandbox/src/index.ts new file mode 100644 index 0000000000..43ee8f3d16 --- /dev/null +++ b/packages/sandbox/sandbox/src/index.ts @@ -0,0 +1,199 @@ +/** + * The process-sandbox seam (`ctx.sandbox`): an abstract service defining WHAT + * platform confinement does — wrap a subprocess argv so it executes under a + * file-effect policy — without saying HOW. Implementations subclass + * {@link SandboxProvider} and register as the `sandbox` service; + * `@deepseek-ai/dsh-sandbox-local` (per-platform chains: Linux `bwrap` then the + * npm-distributed `landlock-run` launcher, macOS `sandbox-exec`/Seatbelt) is + * the first. + * Consumers hand over the exact argv they are about to spawn + * (the staged bash executor wraps `['bash', '-c', command]`; a + * subagent backend wraps its child-agent argv) and spawn the returned argv + * instead. + * + * The seam confines SAME-WORLD subprocesses only: a backend shares the + * host's filesystem and kernel, and the policy's `workspaceRoot` names a + * real host path. Containers, microVMs, and remote executors are NOT + * backends of this seam — they are sibling implementations of whole + * capability seams (`ctx.bash`, `ctx.fs`), deployed as environment-coherent + * groups; the boundary is recorded in + * docs/rfc/proposed/feature/2026-07-06-sandbox.md. + * + * @module @deepseek-ai/dsh-sandbox + */ + +import { Context, Service } from 'cordis' +import { HarnessError } from '@deepseek-ai/dsh-llm' + +/** + * File-effect policy a sandbox backend enforces on confined processes. + * + * - `read-only` — the process cannot write the filesystem anywhere; a + * write-shaped `/dev/null` sink stays available so `>/dev/null` redirects + * keep working (HOW is the backend's choice: bwrap mounts a fresh `/dev`, + * the Landlock launcher and Seatbelt grant the single `/dev/null` node). + * - `workspace-write` — writes are allowed only under the policy's + * workspace root and `/tmp`; everything else stays read-only. Which `/tmp` + * is backend-specific — an ephemeral mount under bwrap, the HOST `/tmp` + * under the Landlock launcher, the host `/private/tmp` plus the per-user + * darwin temp dir under Seatbelt: the seam promises the write boundary, + * not the mount's nature. + * - `danger-full-access` — no confinement; a consumer configured with it + * spawns its argv unwrapped and never calls the provider. + * + * The mode governs FILE effects only: network and process visibility are not + * restricted (a backend that cannot honestly enforce them must not pretend + * to). How completely the file effects themselves are enforced is likewise a + * reported fact, not an assumption — see {@link SandboxEnforcement}. + */ +export type SandboxMode = 'read-only' | 'workspace-write' | 'danger-full-access' + +/** A confining (non-`danger-full-access`) mode — the modes a {@link SandboxPolicy} can carry. */ +export type ConfinedSandboxMode = Exclude + +/** + * How completely the selected backend enforces a confined mode's file + * effects. + * + * - `full` — every file effect the mode promises to block is governed: the + * `bwrap` mount profile, a Landlock kernel enforcing the launcher's whole + * ruleset, or an operator-configured runner (configuring one asserts full + * enforcement along with existence). + * - `partial` — the backend is active but the kernel governs only the subset + * of accesses its ABI knows (an older Landlock ABI: path-based truncate is + * ungoverned before ABI v3), so a file effect the mode promises to block + * may still land. A caller that needs the mode's promise to be absolute + * must treat `partial` as outside that promise. + */ +export type SandboxEnforcement = 'full' | 'partial' + +/** + * What one confined execution is allowed to touch — carried PER CALL, not + * fixed on the provider: two consumers may confine under different policies + * at the same instant (bash under `read-only` while a confined child agent + * needs its state directory writable), and an approved escalated retry is a + * new call with a wider policy. Defaulting/resolution is the consumer's + * explicit step (its config owns the fallback chain); the provider treats + * the policy as fully specified. + */ +export interface SandboxPolicy { + /** The file-effect mode this execution runs under. */ + mode: ConfinedSandboxMode + /** Absolute root directory `workspace-write` may write under. */ + workspaceRoot: string +} + +/** + * A {@link SandboxProvider.confine} result: the argv to spawn in place of + * the caller's own, plus the enforcement completeness the selected backend + * achieves for it. + */ +export interface ConfinedArgv { + /** The wrapped argv (runner, profile, separator, then the caller's argv). */ + argv: string[] + /** How completely the selected backend enforces the policy's file effects. */ + enforcement: SandboxEnforcement + /** + * The selected backend's denial DIALECT: the case-insensitive stderr + * substrings a file effect denied by THIS backend produces (EROFS text + * under bwrap's read-only binds, EACCES under Landlock, EPERM under + * Seatbelt). A consumer that infers denials from a failed run's stderr + * matches against exactly these rather than a cross-backend union — the + * union claims denials a given backend never produces. + */ + denialSignatures: readonly string[] + /** + * How the RUNNER ITSELF failing identifies itself: case-insensitive stderr + * substrings produced when the sandbox binary is missing, refuses its + * profile, or fails closed before exec'ing the command (`bwrap: `, + * `landlock-run: `, `sandbox-exec: ` — each covers both the runner's own + * error prefix and the shell's runner-not-found message). ORTHOGONAL to + * {@link denialSignatures}: a denial is the confined COMMAND being blocked + * (the sandbox working as designed); a runner failure means the command + * NEVER RAN and must surface as a sandbox failure, not a task failure — + * consumers check these signatures FIRST (a runner's own error text may + * contain denial words, e.g. an unopenable grant root reporting + * `Permission denied`). + */ + runnerFailureSignatures: readonly string[] +} + +/** + * Error `code` carried by the infrastructure error a provider throws when a + * confined policy is requested but no backend is available or usable on this + * host: confinement FAILS CLOSED (refuses to run) rather than silently + * executing unconfined. Thrown as a `HarnessError`, it reaches the model + * through the structured `{ name, code }` error channel on `tool/result`, so + * callers can distinguish "the sandbox is missing" from a failing command. + */ +export const SANDBOX_UNAVAILABLE = 'SANDBOX_UNAVAILABLE' + +/** + * Thrown by {@link SandboxProvider.confine} when a confined policy is + * requested but no backend is usable on this host: confinement fails closed. + * Carries the {@link SANDBOX_UNAVAILABLE} code through the structured + * `{ name, code }` error channel. + */ +export class SandboxUnavailableError extends HarnessError { + constructor(mode: ConfinedSandboxMode, detail?: string) { + super( + `sandbox mode "${mode}" is requested but no sandbox backend is usable on this host; ` + + 'refusing to run the command unconfined. Install bubblewrap or run a Landlock-enforcing ' + + 'kernel (Linux), ensure sandbox-exec is usable (macOS) — Windows has no confinement ' + + 'backend yet — or switch the consumer to danger-full-access.' + + (detail === undefined ? '' : ` Runner failure: ${detail}`), + SANDBOX_UNAVAILABLE, + ) + this.name = 'SandboxUnavailableError' + } +} + +declare module 'cordis' { + interface Context { + sandbox: SandboxProvider + } +} + +/** + * Abstract process-sandbox service. Subclass, implement {@link confine}, and + * load the subclass as a plugin — it registers as `ctx.sandbox` (one + * implementation per context; loading a second throws, cordis' standard + * duplicate-service behavior). + * + * Semantics every implementation must honor: + * - {@link confine} either returns an argv whose runner ENFORCES the policy + * or fails closed — at `confine` time with {@link SandboxUnavailableError} + * (no backend for this host), or at EXECUTION time by the runner itself + * refusing to run the command (exiting without exec'ing it, identified by + * {@link ConfinedArgv.runnerFailureSignatures}). A silent unconfined + * passthrough is never a legal outcome on either path. + * - Probing exists to ARBITRATE between multiple candidate backends and may + * be skipped when a platform has exactly one: the sole candidate is + * selected directly and the runner's exec-time fail-closed refusal carries + * the safety property. When probing does run, it is functional (actually + * enforcing a profile, not a version check), at most once per provider + * lifetime; `confine` itself spawns nothing beyond that one-time probing. + * - The returned {@link ConfinedArgv.enforcement} states the backend's + * actual completeness for THIS host; `partial` is reported, never silently + * upgraded to `full`. + */ +export abstract class SandboxProvider extends Service { + constructor(ctx: Context) { + super(ctx, 'sandbox') + } + + /** + * Wrap `argv` so it executes confined under `policy` on this host; the + * caller spawns the returned argv in place of its own. + * @param argv - the exact argv the caller is about to spawn (program plus + * arguments), NOT a shell string — a shell-shaped consumer passes + * `['bash', '-c', command]`. + * @param policy - the file-effect policy this execution runs under, + * carried per call (see {@link SandboxPolicy}). + * @returns the argv to spawn instead, plus the enforcement completeness + * the selected backend achieves for it. + */ + abstract confine(argv: readonly string[], policy: SandboxPolicy): ConfinedArgv +} + +export default SandboxProvider diff --git a/packages/sandbox/sandbox/tests/vocabulary.spec.ts b/packages/sandbox/sandbox/tests/vocabulary.spec.ts new file mode 100644 index 0000000000..caba42b2a7 --- /dev/null +++ b/packages/sandbox/sandbox/tests/vocabulary.spec.ts @@ -0,0 +1,35 @@ +/** + * Vocabulary-contract tests for the sandbox seam: the fail-closed error's + * structured identity is what tool results and consumers key on, so its + * shape is pinned here, next to the vocabulary that owns it. Provider + * behavior is each implementation's suite (`dsh-sandbox-local`); consumer + * behavior is each consumer's (`dsh-bash-sandbox`). + */ + +import { describe, expect, it } from 'vitest' +import { SANDBOX_UNAVAILABLE, SandboxUnavailableError } from '@deepseek-ai/dsh-sandbox' + +describe('SandboxUnavailableError', () => { + it('carries the structured { name, code } identity consumers key on', () => { + const error = new SandboxUnavailableError('read-only') + expect(error.name).toBe('SandboxUnavailableError') + expect(error.code).toBe(SANDBOX_UNAVAILABLE) + expect(error).toBeInstanceOf(Error) + }) + + it('names the refused mode and the operator escape hatches in its message', () => { + const error = new SandboxUnavailableError('workspace-write') + expect(error.message).toContain('"workspace-write"') + expect(error.message).toContain('danger-full-access') + expect(error.message).not.toContain('Runner failure') + }) + + it('carries the runner detail when the failure is discovered at execution time', () => { + // The late twin of the confine-time throw: an unprobed sole candidate + // that fails closed at exec surfaces the SAME error, with the runner's + // own first stderr line as the cause. + const error = new SandboxUnavailableError('read-only', 'landlock-run: landlock is not enforced by this kernel') + expect(error.code).toBe(SANDBOX_UNAVAILABLE) + expect(error.message).toContain('Runner failure: landlock-run: landlock is not enforced by this kernel') + }) +}) diff --git a/packages/sandbox/sandbox/tsconfig.json b/packages/sandbox/sandbox/tsconfig.json new file mode 100644 index 0000000000..9f687793d7 --- /dev/null +++ b/packages/sandbox/sandbox/tsconfig.json @@ -0,0 +1,21 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../llm/llm" + } + ] +} diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index bef41d9bdf..27302831d6 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -626,6 +626,34 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/sandbox/sandbox: + devDependencies: + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + + packages/sandbox/sandbox-local: + dependencies: + node-addon-landlock-run: + specifier: 0.0.0-test.0 + version: 0.0.0-test.0 + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + '@deepseek-ai/dsh-sandbox': + specifier: workspace:^ + version: link:../sandbox + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/session-persistence/session-persistence: devDependencies: '@deepseek-ai/dsh-session': @@ -3780,6 +3808,22 @@ packages: natural-compare@1.4.0: resolution: {integrity: sha512-OWND8ei3VtNC9h7V60qff3SVobHr996CTwgxubgyQYEpg290h9J0buyECNNJexkFm5sOajh5G116RYA1c8ZMSw==} + node-addon-landlock-run-linux-arm64@0.0.0-test.0: + resolution: {integrity: sha512-oJsXcC33qKl9mWYx0n9YPJ2pUAoY39PoIX0Gx4lDrSCTEvENFrEaODAsQYNY+eEGpn9YMN7E+FOftvea3/1FqQ==} + engines: {node: '>=20'} + cpu: [arm64] + os: [linux] + + node-addon-landlock-run-linux-x64@0.0.0-test.0: + resolution: {integrity: sha512-eXvdfnH/UV55MTZzroKvM3CD68SP5OlCsuth908YOcJOnn0LPD5KJjmBz6ToDlBYjF52NNK62+g7TvmUWjbKWQ==} + engines: {node: '>=20'} + cpu: [x64] + os: [linux] + + node-addon-landlock-run@0.0.0-test.0: + resolution: {integrity: sha512-c5qopltRonjW6+VinXYMp4FVi9Sxf8eQEb/9G82EksQQ+JC4CDprv+ko5URWmtyZ3wD4GFdeRTyw1AG5yCwJhQ==} + engines: {node: '>=20'} + node-domexception@1.0.0: resolution: {integrity: sha512-/jKZoMpw0F8GRwl4/eLROPA3cfcXtLApP0QzLmUT/HuPCZWyB7IY9ZrMeKw2O/nFIqPQB3PVM9aYm0F312AXDQ==} engines: {node: '>=10.5.0'} @@ -6786,6 +6830,17 @@ snapshots: natural-compare@1.4.0: {} + node-addon-landlock-run-linux-arm64@0.0.0-test.0: + optional: true + + node-addon-landlock-run-linux-x64@0.0.0-test.0: + optional: true + + node-addon-landlock-run@0.0.0-test.0: + optionalDependencies: + node-addon-landlock-run-linux-arm64: 0.0.0-test.0 + node-addon-landlock-run-linux-x64: 0.0.0-test.0 + node-domexception@1.0.0: {} node-fetch@3.3.2: diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml index b2b731fc58..6407a99f52 100644 --- a/pnpm-workspace.yaml +++ b/pnpm-workspace.yaml @@ -19,3 +19,12 @@ allowBuilds: # need, so we deny them — install still succeeds. '@google/genai': false protobufjs: false + +# The Landlock launcher family is our own sibling-repo release, consumed +# fresh (hours old at each coordinated bump) — the release-age quarantine +# would block every such bump, so the family is exempted BY NAME, not by +# pinned version. +minimumReleaseAgeExclude: + - node-addon-landlock-run + - node-addon-landlock-run-linux-arm64 + - node-addon-landlock-run-linux-x64 diff --git a/scripts/doc-budgets.manifest.json b/scripts/doc-budgets.manifest.json index a5261698a2..52f563b86d 100644 --- a/scripts/doc-budgets.manifest.json +++ b/scripts/doc-budgets.manifest.json @@ -7,5 +7,5 @@ "docs/testing.md": 800, "examples/AGENTS.md": 653, "packages/AGENTS.md": 450, - "packages/README.md": 660 + "packages/README.md": 710 } diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index be6d8b7121..dd6c6fb67d 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -70,6 +70,7 @@ const GROUP_ORDER = [ 'llm', 'core', 'bash', + 'sandbox', 'fs', 'compact', 'subagent', @@ -159,6 +160,15 @@ const SERVICE_ROLES: ServiceRole[] = [ consumers: ['tool-bash', 'hooks-claude', 'hooks-codex'], note: 'The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors can replace bash-local.', }, + { + key: 'sandbox', + pkg: 'sandbox', + title: 'Process-sandbox seam', + mode: 'seam', + implementations: ['sandbox-local'], + consumers: [], + note: 'Consumers hand over the exact argv they are about to spawn; same-world backends wrap it under a per-call policy and report enforcement.', + }, { key: 'approval', pkg: 'approval', diff --git a/tsconfig.base.json b/tsconfig.base.json index b6d0281f81..80becb532c 100644 --- a/tsconfig.base.json +++ b/tsconfig.base.json @@ -42,6 +42,7 @@ "@deepseek-ai/dsh-*": [ "./packages/approval/*/src", "./packages/core/*/src", + "./packages/sandbox/*/src", "./packages/llm/*/src", "./packages/bash/*/src", "./packages/code-runtime/*/src", diff --git a/tsconfig.build.json b/tsconfig.build.json index 2033218d01..c6c814c221 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -19,6 +19,8 @@ { "path": "./packages/session-persistence/session-persistence-sqlite" }, { "path": "./packages/core/system-prompt" }, { "path": "./packages/approval/approval" }, + { "path": "./packages/sandbox/sandbox" }, + { "path": "./packages/sandbox/sandbox-local" }, { "path": "./packages/core/agent" }, { "path": "./packages/ui/user-interaction" }, { "path": "./packages/core/tools" }, diff --git a/tsconfig.json b/tsconfig.json index af8badd19f..cd458490f7 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -30,6 +30,8 @@ { "path": "./packages/session-persistence/session-persistence-sqlite" }, { "path": "./packages/core/system-prompt" }, { "path": "./packages/approval/approval" }, + { "path": "./packages/sandbox/sandbox" }, + { "path": "./packages/sandbox/sandbox-local" }, { "path": "./packages/core/agent" }, { "path": "./packages/ui/user-interaction" }, { "path": "./packages/core/tools" }, diff --git a/tsdown.config.ts b/tsdown.config.ts index 7b172180d1..9479c5c91d 100644 --- a/tsdown.config.ts +++ b/tsdown.config.ts @@ -12,7 +12,8 @@ import { defineConfig } from 'tsdown' export default defineConfig({ // Explicit globs: `workspace: true` would also discover examples (any // package.json), but only vendor and the packages hierarchy are pnpm - // workspaces. + // workspaces. The Landlock launcher platform packages ship a prebuilt + // native binary and no JavaScript — nothing to bundle. workspace: ['vendor/*', 'packages/*/*'], entry: ['lib/types/index.js'], outDir: 'lib', From 2eed448acfb457c547771141cc3aed788442e703 Mon Sep 17 00:00:00 2001 From: kingwl Date: Thu, 9 Jul 2026 16:05:44 +0800 Subject: [PATCH 170/232] =?UTF-8?q?feat(bash):=20the=20sandboxed=20executo?= =?UTF-8?q?r=20=E2=80=94=20per-call=20policy=20carrier,=20denial=20facts,?= =?UTF-8?q?=20runner-failure=20classification?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit dsh-bash grows the per-call policy carrier: BashExecRequest.sandboxMode (request-optional, spec required-but-nullable — the owner pattern; resolve() is the one explicit defaulting step) and the BashExecutor.sandboxMode capability fact (undefined in the base class — composition truth the tool layer can read). dsh-bash-local carries the field verbatim and confines nothing. dsh-bash-sandbox extends LocalBashExecutor and hands ctx.sandbox the exact argv it is about to spawn. A denial is a RESULT FACT (the command RAN; result.sandbox.denied is orthogonal to exitCode/signal), classified conservatively against the wrap own dialect; a RUNNER failure outranks denial — foreground re-throws the structured SANDBOX_UNAVAILABLE, a settled background task stamps sandbox.runnerFailed — so a broken sandbox never reads as a failing command and the command never runs unconfined. dsh-tool-bash renders the markers and teaches the model not to retry around a policy denial; escalation and per-session switching are staged follow-ups. --- docs/capability-seams.md | 7 +- docs/config-catalog.md | 27 ++ docs/cordis-catalog/services.md | 2 +- docs/core-data-structures/bash.md | 89 ++++- docs/module-graph.md | 26 +- docs/tool-catalog.md | 2 +- .../snapshots/both-mode-turn/session.jsonl | 2 +- .../snapshots/code-mode-turn/session.jsonl | 2 +- .../tests/snapshots/text-turn/session.jsonl | 2 +- knip.json | 4 + packages/bash/README.md | 7 +- packages/bash/bash-local/README.md | 2 +- packages/bash/bash-local/src/index.ts | 16 + packages/bash/bash-sandbox/README.md | 33 ++ packages/bash/bash-sandbox/package.json | 41 +++ packages/bash/bash-sandbox/src/index.ts | 305 ++++++++++++++++ packages/bash/bash-sandbox/tests/bwrap.e2e.ts | 101 ++++++ .../bash/bash-sandbox/tests/landlock.e2e.ts | 100 ++++++ .../bash/bash-sandbox/tests/sandbox.spec.ts | 327 ++++++++++++++++++ .../bash/bash-sandbox/tests/seatbelt.e2e.ts | 101 ++++++ packages/bash/bash-sandbox/tsconfig.json | 36 ++ packages/bash/bash/README.md | 10 +- packages/bash/bash/package.json | 4 + packages/bash/bash/src/index.ts | 17 + packages/bash/bash/src/types.ts | 83 +++++ packages/bash/bash/tests/service.spec.ts | 6 + packages/bash/bash/tsconfig.json | 6 + packages/bash/tool-bash/README.md | 15 +- packages/bash/tool-bash/package.json | 5 +- packages/bash/tool-bash/src/index.ts | 31 +- packages/bash/tool-bash/tests/tools.spec.ts | 99 +++++- packages/bash/tool-bash/tsconfig.json | 9 + .../hooks/hook-protocol/tests/runner.spec.ts | 1 + pnpm-lock.yaml | 41 ++- scripts/gen-doc-graphs.ts | 6 +- scripts/type-equiv.manifest.json | 2 + tsconfig.build.json | 1 + tsconfig.json | 1 + 38 files changed, 1529 insertions(+), 40 deletions(-) create mode 100644 packages/bash/bash-sandbox/README.md create mode 100644 packages/bash/bash-sandbox/package.json create mode 100644 packages/bash/bash-sandbox/src/index.ts create mode 100644 packages/bash/bash-sandbox/tests/bwrap.e2e.ts create mode 100644 packages/bash/bash-sandbox/tests/landlock.e2e.ts create mode 100644 packages/bash/bash-sandbox/tests/sandbox.spec.ts create mode 100644 packages/bash/bash-sandbox/tests/seatbelt.e2e.ts create mode 100644 packages/bash/bash-sandbox/tsconfig.json diff --git a/docs/capability-seams.md b/docs/capability-seams.md index 8dac9fbfd6..703226a968 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -44,6 +44,7 @@ flowchart LR pkg_bash["bash"] svc_bash["ctx.bash
Bash executor seam"] pkg_bash_local["bash-local"] + pkg_bash_sandbox["bash-sandbox"] pkg_hooks_claude["hooks-claude"] pkg_hooks_codex["hooks-codex"] pkg_sandbox["sandbox"] @@ -83,6 +84,7 @@ flowchart LR pkg_approval --> svc_approval pkg_bash --> svc_bash pkg_bash_local --> svc_bash + pkg_bash_sandbox --> svc_bash pkg_code_runtime --> svc_codeRuntime pkg_code_runtime_worker --> svc_codeRuntime pkg_compact --> svc_compact @@ -130,6 +132,7 @@ flowchart LR svc_fs --> pkg_tool_fs svc_llm --> pkg_agent_loop svc_llm --> pkg_compact_basic + svc_sandbox --> pkg_bash_sandbox svc_sessionPersistence --> pkg_acp svc_sessionPersistence --> pkg_agent_loop svc_sessions --> pkg_agent @@ -169,8 +172,8 @@ flowchart LR | `ctx.userInteraction` | `seam` | [`user-interaction`](../packages/ui/user-interaction) | [`stdio-agent`](../packages/ui/stdio-agent), [`acp`](../packages/ui/acp) | [`tool-ask-user`](../packages/ui/tool-ask-user), [`stdio-agent`](../packages/ui/stdio-agent), [`acp`](../packages/ui/acp) | - | UI front doors provide the active human-answer provider; tool-ask-user pauses a tool call on the provider-neutral ask() promise. | | `ctx.agents` | `core` | [`agent`](../packages/core/agent) | - | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp), [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`stdio-agent`](../packages/ui/stdio-agent), [`invariants`](../packages/support/invariants) | - | Owns live Agent handles and the create/resume factory seam. | | `ctx.agentLoop` | `bundle` | [`agent-loop`](../packages/core/agent-loop) | - | [`agent-core`](../packages/core/agent-core) | - | The one concrete loop plugin; extension packages depend on dsh-agent events and services, not on this package. | -| `ctx.bash` | `seam` | [`bash`](../packages/bash/bash) | [`bash-local`](../packages/bash/bash-local) | [`tool-bash`](../packages/bash/tool-bash), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | - | The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors can replace bash-local. | -| `ctx.sandbox` | `seam` | [`sandbox`](../packages/sandbox/sandbox) | [`sandbox-local`](../packages/sandbox/sandbox-local) | - | - | Consumers hand over the exact argv they are about to spawn; same-world backends wrap it under a per-call policy and report enforcement. | +| `ctx.bash` | `seam` | [`bash`](../packages/bash/bash) | [`bash-local`](../packages/bash/bash-local), [`bash-sandbox`](../packages/bash/bash-sandbox) | [`tool-bash`](../packages/bash/tool-bash), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | - | The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors replace bash-local without touching them. | +| `ctx.sandbox` | `seam` | [`sandbox`](../packages/sandbox/sandbox) | [`sandbox-local`](../packages/sandbox/sandbox-local) | [`bash-sandbox`](../packages/bash/bash-sandbox) | - | Consumers hand over the exact argv they are about to spawn; same-world backends wrap it under a per-call policy and report enforcement. | | `ctx.approval` | `seam` | [`approval`](../packages/approval/approval) | [`acp`](../packages/ui/acp) | [`tools`](../packages/core/tools) | - | One-shot permission decisions dispatched over the `approval/request` waterfall; answerers are listeners (the ACP bridge for its own agents), absence fails closed to `unavailable`. | | `ctx.codeRuntime` | `seam` | [`code-runtime`](../packages/code-runtime/code-runtime) | [`code-runtime-worker`](../packages/code-runtime/code-runtime-worker) | [`tools`](../packages/core/tools) | - | Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the tool registry consumes it for Code Mode). | | `ctx.fs` | `seam` | [`fs`](../packages/fs/fs) | [`fs-local`](../packages/fs/fs-local) | [`tool-fs`](../packages/fs/tool-fs) | [`fs-policy`](../packages/fs/fs-policy) | tool-fs executes read/write/edit through ctx.fs; fs-policy contributes observed-state checks through the fs/* event gate. | diff --git a/docs/config-catalog.md b/docs/config-catalog.md index b092b20537..baae8c65e0 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -150,6 +150,33 @@ export interface Config { Source: [`packages/bash/bash-local/src/index.ts:29`](../packages/bash/bash-local/src/index.ts) +## `@deepseek-ai/dsh-bash-sandbox` + +Requires: `sandbox` + +```ts config-catalog +/** + * Plugin config: the local executor's knobs plus the sandbox policy. All + * optional — `static Config` supplies the defaults (`mode: 'read-only'` is the + * fail-safe default; an example that wants a workspace-writable agent opts in + * explicitly). The runner choice is NOT configured here: which platform + * backend confines the command is the `ctx.sandbox` provider's config. + */ +export interface Config extends LocalConfig { + /** File-sandbox mode commands run under (default: `read-only`). */ + mode?: SandboxMode + /** + * Root directory `workspace-write` mode may write under (default: the + * executor's default working directory — `cwd`, else `process.cwd()`). + */ + workspaceRoot?: string +} +``` + +Depends on: [`LocalConfig`](#deepseek-aidsh-bash-local) · [`SandboxMode`](../packages/sandbox/sandbox/src/index.ts) + +Source: [`packages/bash/bash-sandbox/src/index.ts:59`](../packages/bash/bash-sandbox/src/index.ts) + ## `@deepseek-ai/dsh-code-runtime-worker` ```ts config-catalog diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index e0fa68bab9..2206adfde6 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -75,7 +75,7 @@ onTaskDone(listener: BashTaskListener): () => void Types: [BashExecRequest](../core-data-structures/bash.md) · [BashExecSpec](../core-data-structures/bash.md) · [BashRunResult](../core-data-structures/bash.md) · [BashTask](../core-data-structures/bash.md) · [BashTaskRead](../core-data-structures/bash.md) -Source: [`packages/bash/bash/src/index.ts:59`](../../packages/bash/bash/src/index.ts) +Source: [`packages/bash/bash/src/index.ts:61`](../../packages/bash/bash/src/index.ts) ## `ctx.codeRuntime` — `CodeRuntime` (abstract seam) diff --git a/docs/core-data-structures/bash.md b/docs/core-data-structures/bash.md index 273ba5ebe8..07b0307e2d 100644 --- a/docs/core-data-structures/bash.md +++ b/docs/core-data-structures/bash.md @@ -44,6 +44,20 @@ interface BashExecRequest { * ownerless background start (a non-agent caller). */ owner?: OwnerToken | undefined + /** + * Explicit per-call sandbox-policy input, overriding the executor's + * configured default mode for THIS call. Never a silent default: a + * consumer sets it only from an explicit policy source — an + * `'allowed-once'` grant a human just issued through `ctx.approval` (the + * escalation flow in the sandbox RFC § Escalation, which outranks), or the + * session's standing override folded from its own `bash/sandbox-mode` + * events (the sandbox RFC § Per-session mode switching — the user's recorded per-session + * choice). A sandboxing executor confines THIS call under the given mode; + * a non-sandboxing executor carries the field and confines nothing (the + * tool layer stamps neither escalation nor overrides without a sandboxing + * executor — see {@link BashExecutor.sandboxMode}). + */ + sandboxMode?: SandboxMode | undefined } ``` @@ -79,6 +93,16 @@ interface BashExecSpec { * task. `start()` stores it; `run()` (foreground) ignores it. */ owner: OwnerToken | undefined + /** + * The sandbox mode this call executes under, REQUIRED-but-nullable for the + * same visibility reason as `owner`. A sandboxing executor's `resolve()` + * stamps the effective mode (the request's explicit override, else its + * configured default) so `run()`/`start()` read the spec, never the config; + * a non-sandboxing executor carries the request value through verbatim and + * ignores it (`undefined` under such an executor means what its README says: + * unconfined execution). + */ + sandboxMode: SandboxMode | undefined } ``` @@ -106,6 +130,12 @@ interface BashRunResult { timeoutMs: number stdout: CollectedOutput stderr: CollectedOutput + /** + * Sandbox facts, present iff a sandboxing executor ran the command — an + * unsandboxed executor (e.g. `dsh-bash-local`) never sets it. See + * {@link BashSandboxInfo} for the `denied` classification semantics. + */ + sandbox?: BashSandboxInfo } ``` @@ -122,9 +152,56 @@ interface CollectedOutput { } ``` +## File sandbox: `SandboxMode` / `BashSandboxInfo` + +A sandbox-consuming executor (`dsh-bash-sandbox`) confines commands under its executor-configured mode — fixed at config time for the executor's lifetime; a runtime/per-session mode surface is the sandbox RFC's config phase, not current behavior; the mode/enforcement vocabulary is owned by the `@deepseek-ai/dsh-sandbox` seam (whose provider wraps the executor's argv), and the mode governs FILE effects only — network and process visibility are deliberately not restricted, because a backend that cannot honestly enforce them must not pretend to: + +```ts type-equiv +type SandboxMode = 'read-only' | 'workspace-write' | 'danger-full-access' +``` + +A sandboxed run always reports the facts it executed under on `BashRunResult.sandbox`: `denied` is the executor's conservative classification of a failure as sandbox-caused (a failed exit whose stderr carries a filesystem-permission signature — never a clean exit or a signal kill), read from the collected stderr tail; `enforcement` reports how completely the selected backend governs the mode's file effects (`SandboxEnforcement = 'full' | 'partial'` — `partial` when an older Landlock ABI governs only a subset of the requested accesses; absent under `danger-full-access`, where nothing is confined); `runnerFailed` marks the opposite of a denial — the sandbox RUNNER itself failed and the command never ran (stamped only on settled background tasks; a foreground run surfaces the same condition as the thrown `SANDBOX_UNAVAILABLE` error): + +```ts type-equiv +interface BashSandboxInfo { + /** The mode the command actually ran under. */ + mode: SandboxMode + /** + * True when the executor classifies this run's failure as the sandbox + * denying a file operation. The classification is CONSERVATIVE (a failed + * exit whose stderr carries a filesystem-permission signature) and reads + * the COLLECTED stderr — the bounded in-memory tail per + * {@link CollectedOutput} semantics, so a signature that survives only in a + * spill file is missed toward `denied: false`. A plain command failure + * keeps `denied: false` even under a sandboxed mode. + */ + denied: boolean + /** + * How completely the runner enforced `mode`'s file effects — see + * {@link SandboxEnforcement}. Absent exactly when `mode` is + * `danger-full-access`: nothing is confined, so there is no enforcement to + * report. + */ + enforcement?: SandboxEnforcement + /** + * True when the executor classifies this failure as the SANDBOX RUNNER + * itself failing (missing binary, refused profile, fail-closed refusal + * before exec) — the command NEVER RAN; this is a sandbox failure, not a + * task failure, and it outranks `denied` (a runner's own error text can + * contain denial words). Only ever stamped on settled BACKGROUND tasks: a + * foreground run surfaces the same condition as the thrown + * `SANDBOX_UNAVAILABLE` error instead (the foreground path has an error + * channel; a settled task's facts are its only channel). + */ + runnerFailed?: boolean +} +``` + +One more piece completes the vocabulary: the `SANDBOX_UNAVAILABLE` error code (owned by the sandbox seam) is what the `ctx.sandbox` provider throws — and the executor propagates — when a confined mode has no usable backend: sandboxed modes fail CLOSED instead of silently running unconfined. The model's view of the sandbox is result facts only: the static bash tool description explains the denial marker, and each run's `result.sandbox` carries the mode it executed under (no live-mode getter on the seam and no current-mode prompt statement — both arrive with the runtime-context phase of the RFC below). Denials are deny-only result facts today; the approval/escalated-retry flow on top of them is the [sandbox RFC](../rfc/proposed/feature/2026-07-06-sandbox.md). + ## Background tasks: `BashTask` -A long-running command started with `start()` is tracked as a `BashTask`. `BashTaskStatus` is `'running' | 'completed' | 'killed'`; `done` resolves when the underlying process closes and never rejects. +A long-running command started with `start()` is tracked as a `BashTask`. `BashTaskStatus` is `'running' | 'completed' | 'killed'`; `done` resolves when the underlying process closes and never rejects. A sandboxing executor stamps `sandbox` once the task settles — classification runs against the settled task's collected stderr — so the field is absent while running and under an unsandboxed executor. ```ts type-equiv interface BashTask { @@ -137,6 +214,16 @@ interface BashTask { signal: NodeJS.Signals | null /** Resolves when the underlying process closes (never rejects). */ readonly done: Promise + /** + * Sandbox facts for this task's execution, stamped by a sandboxing executor + * once the task settles and BEFORE completion listeners are notified — an + * `onTaskDone` consumer and a `done` awaiter both see it. Denial + * classification runs against the settled task's collected stderr, so the + * field cannot exist earlier: absent while the task is running and under an + * executor that does not sandbox. See {@link BashSandboxInfo} for the + * `denied` semantics. + */ + sandbox?: BashSandboxInfo } ``` diff --git a/docs/module-graph.md b/docs/module-graph.md index 2c2e94a254..4553e4f421 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -27,6 +27,7 @@ flowchart TD subgraph group_bash["packages/bash"] pkg_bash["bash"] pkg_bash_local["bash-local"] + pkg_bash_sandbox["bash-sandbox"] pkg_tool_bash["tool-bash"] end subgraph group_fs["packages/fs"] @@ -108,15 +109,12 @@ flowchart TD pkg_workflow_workerthread["workflow-workerthread"] end pkg_llm --> pkg_brand - pkg_bash --> pkg_brand pkg_code_runtime_worker --> pkg_code_runtime pkg_llm_deepseek --> pkg_llm pkg_llm_pi_ai --> pkg_llm pkg_session --> pkg_brand pkg_session --> pkg_llm pkg_system_prompt --> pkg_llm - pkg_bash_local --> pkg_bash - pkg_bash_local --> pkg_timeout pkg_fs --> pkg_brand pkg_fs --> pkg_llm pkg_web --> pkg_llm @@ -125,6 +123,9 @@ flowchart TD pkg_agent --> pkg_llm pkg_agent --> pkg_session pkg_agent --> pkg_system_prompt + pkg_bash --> pkg_brand + pkg_bash --> pkg_sandbox + pkg_bash --> pkg_session pkg_fs_local --> pkg_fs pkg_fs_policy --> pkg_fs pkg_compact --> pkg_llm @@ -134,17 +135,19 @@ flowchart TD pkg_web_search_deepseek --> pkg_web pkg_web_search_exa --> pkg_web pkg_web_search_perplexity --> pkg_web - pkg_hook_protocol --> pkg_bash - pkg_hook_protocol --> pkg_session pkg_session_persistence --> pkg_session pkg_llm_replay --> pkg_llm pkg_llm_replay --> pkg_session pkg_sandbox_local --> pkg_llm pkg_sandbox_local --> pkg_sandbox + pkg_bash_local --> pkg_bash + pkg_bash_local --> pkg_timeout pkg_compact_basic --> pkg_agent pkg_compact_basic --> pkg_compact pkg_compact_basic --> pkg_llm pkg_compact_basic --> pkg_session + pkg_hook_protocol --> pkg_bash + pkg_hook_protocol --> pkg_session pkg_session_persistence_jsonl --> pkg_session pkg_session_persistence_jsonl --> pkg_session_persistence pkg_session_persistence_sqlite --> pkg_session @@ -167,6 +170,9 @@ flowchart TD pkg_tools --> pkg_llm pkg_tools --> pkg_session pkg_tools --> pkg_system_prompt + pkg_bash_sandbox --> pkg_bash + pkg_bash_sandbox --> pkg_bash_local + pkg_bash_sandbox --> pkg_sandbox pkg_agent_loop --> pkg_agent pkg_agent_loop --> pkg_llm pkg_agent_loop --> pkg_session @@ -176,6 +182,7 @@ flowchart TD pkg_tool_bash --> pkg_agent pkg_tool_bash --> pkg_bash pkg_tool_bash --> pkg_llm + pkg_tool_bash --> pkg_sandbox pkg_tool_bash --> pkg_system_prompt pkg_tool_bash --> pkg_tools pkg_tool_fs --> pkg_fs @@ -286,17 +293,16 @@ flowchart TD | [`app-boot`](../packages/ui/app-boot) | `ui` | — | | [`code-runtime`](../packages/code-runtime/code-runtime) | `code-runtime` | — | | [`llm`](../packages/llm/llm) | `llm` | [`brand`](../packages/util/brand) | -| [`bash`](../packages/bash/bash) | `bash` | [`brand`](../packages/util/brand) | | [`code-runtime-worker`](../packages/code-runtime/code-runtime-worker) | `code-runtime` | [`code-runtime`](../packages/code-runtime/code-runtime) | | [`llm-deepseek`](../packages/llm/llm-deepseek) | `llm` | [`llm`](../packages/llm/llm) | | [`llm-pi-ai`](../packages/llm/llm-pi-ai) | `llm` | [`llm`](../packages/llm/llm) | | [`session`](../packages/core/session) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | | [`system-prompt`](../packages/core/system-prompt) | `core` | [`llm`](../packages/llm/llm) | -| [`bash-local`](../packages/bash/bash-local) | `bash` | [`bash`](../packages/bash/bash), [`timeout`](../packages/util/timeout) | | [`fs`](../packages/fs/fs) | `fs` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | | [`web`](../packages/web/web) | `web` | [`llm`](../packages/llm/llm) | | [`sandbox`](../packages/sandbox/sandbox) | `sandbox` | [`llm`](../packages/llm/llm) | | [`agent`](../packages/core/agent) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | +| [`bash`](../packages/bash/bash) | `bash` | [`brand`](../packages/util/brand), [`sandbox`](../packages/sandbox/sandbox), [`session`](../packages/core/session) | | [`fs-local`](../packages/fs/fs-local) | `fs` | [`fs`](../packages/fs/fs) | | [`fs-policy`](../packages/fs/fs-policy) | `fs` | [`fs`](../packages/fs/fs) | | [`compact`](../packages/compact/compact) | `compact` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | @@ -304,11 +310,12 @@ flowchart TD | [`web-search-deepseek`](../packages/web/web-search-deepseek) | `web` | [`web`](../packages/web/web) | | [`web-search-exa`](../packages/web/web-search-exa) | `web` | [`web`](../packages/web/web) | | [`web-search-perplexity`](../packages/web/web-search-perplexity) | `web` | [`web`](../packages/web/web) | -| [`hook-protocol`](../packages/hooks/hook-protocol) | `hooks` | [`bash`](../packages/bash/bash), [`session`](../packages/core/session) | | [`session-persistence`](../packages/session-persistence/session-persistence) | `session-persistence` | [`session`](../packages/core/session) | | [`llm-replay`](../packages/support/llm-replay) | `support` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`sandbox-local`](../packages/sandbox/sandbox-local) | `sandbox` | [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox) | +| [`bash-local`](../packages/bash/bash-local) | `bash` | [`bash`](../packages/bash/bash), [`timeout`](../packages/util/timeout) | | [`compact-basic`](../packages/compact/compact-basic) | `compact` | [`agent`](../packages/core/agent), [`compact`](../packages/compact/compact), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | +| [`hook-protocol`](../packages/hooks/hook-protocol) | `hooks` | [`bash`](../packages/bash/bash), [`session`](../packages/core/session) | | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`invariants`](../packages/support/invariants) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | @@ -316,8 +323,9 @@ flowchart TD | [`approval`](../packages/approval/approval) | `approval` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`workflow`](../packages/workflow/workflow) | `workflow` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | | [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`approval`](../packages/approval/approval), [`code-runtime`](../packages/code-runtime/code-runtime), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | +| [`bash-sandbox`](../packages/bash/bash-sandbox) | `bash` | [`bash`](../packages/bash/bash), [`bash-local`](../packages/bash/bash-local), [`sandbox`](../packages/sandbox/sandbox) | | [`agent-loop`](../packages/core/agent-loop) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | -| [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | +| [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-fs`](../packages/fs/tool-fs) | `fs` | [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`subagent`](../packages/subagent/subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`tools`](../packages/core/tools) | | [`tool-web`](../packages/web/tool-web) | `web` | [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`web`](../packages/web/web) | diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md index 6d97017f1d..ba0bd64115 100644 --- a/docs/tool-catalog.md +++ b/docs/tool-catalog.md @@ -124,7 +124,7 @@ Registered by the tool registry itself under `mode: code` / `mode: both` (see th ### `bash` -Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. +Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under mode]` — a policy denial, not a bug in the command; do not retry another way (a background task reports the same marker via bash_output once it has finished). Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. ```json { diff --git a/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl b/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl index df7187bbbb..72d5e47ab9 100644 --- a/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783611774323,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783611774323,"data":{"content":[{"type":"text","text":"Call the run_code tool (NOT the native bash tool directly) with a program that runs exactly `echo BOTH_OK` via tools.bash and returns its output. Then reply with that output only and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783611774324,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783611774325,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/2c/psb0_fmx7hbgz558xjt_f0l00000gn/T/acp-snap-cwd-52lrTl.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's text output as a string. Tool arguments must be JSON-serializable.\n- A FAILED tool call rejects with an `Error` carrying the tool's error text — `try/catch` it to handle and continue.\n- Calls execute sequentially, even under `Promise.all`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ndeclare const tools: {\n /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. */\n bash(args: {\n /** The bash command to execute. */\n command: string;\n /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n description: string;\n /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n timeoutMs?: number;\n /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n workdir?: string;\n /** Run in the background and return a task id immediately. No timeout applies. */\n run_in_background?: boolean;\n }): Promise;\n /** Ask the executor to kill a running background bash task by task id. */\n bash_kill(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output. */\n bash_output(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Edit an existing UTF-8 text file by replacing literal text. */\n edit(args: {\n /** Path to edit, resolved by the filesystem backend. */\n file_path: string;\n /** Literal text to replace. Must match exactly. */\n old_string: string;\n /** Literal replacement text. Use an empty string to delete the match. */\n new_string: string;\n /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n replace_all?: boolean;\n }): Promise;\n /** Read a UTF-8 text file and return line-numbered content. */\n read(args: {\n /** Path to read, resolved by the filesystem backend. */\n file_path: string;\n /** 1-based first line to return. Defaults to 1. */\n offset?: number;\n /** Maximum number of lines to return. Defaults to 2000. */\n limit?: number;\n }): Promise;\n /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. */\n subagent(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */\n prompt: string;\n }): Promise;\n /** Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. */\n subagent_fork(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */\n prompt: string;\n }): Promise;\n /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */\n todo_write(args: {\n /** The COMPLETE task list, replacing any previous list. */\n todos: ({\n /** What the task is — a short imperative line. */\n content: string;\n /** pending (not started) | in_progress (now) | completed (done). */\n status: \"pending\" | \"in_progress\" | \"completed\";\n })[];\n }): Promise;\n /** Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. - `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. - `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. - `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. */\n workflow(args: {\n /** The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `). */\n script: string;\n /** The workflow identity block (plain JSON — never code). */\n meta: {\n /** Short kebab-case workflow name. */\n name: string;\n /** One-line description of what the workflow does. */\n description: string;\n /** Optional guidance on when this workflow applies. */\n whenToUse?: string;\n /** Optional phase declarations matched by phase() calls. */\n phases?: {\n /** The phase title phase() calls match by exact string. */\n title: string;\n /** Optional one-line description of the phase. */\n detail?: string;\n /** Optional model override this phase is expected to use. */\n model?: string;\n }[];\n };\n /** Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}). */\n args?: Record;\n }): Promise;\n /** Create or fully replace a UTF-8 text file. */\n write(args: {\n /** Path to write, resolved by the filesystem backend. */\n file_path: string;\n /** Full UTF-8 text content to write. */\n content: string;\n }): Promise;\n}\n```","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."}},"required":["code"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783611774325,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/2c/psb0_fmx7hbgz558xjt_f0l00000gn/T/acp-snap-cwd-52lrTl.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's text output as a string. Tool arguments must be JSON-serializable.\n- A FAILED tool call rejects with an `Error` carrying the tool's error text — `try/catch` it to handle and continue.\n- Calls execute sequentially, even under `Promise.all`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ndeclare const tools: {\n /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under mode]` — a policy denial, not a bug in the command; do not retry another way (a background task reports the same marker via bash_output once it has finished). Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. */\n bash(args: {\n /** The bash command to execute. */\n command: string;\n /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n description: string;\n /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n timeoutMs?: number;\n /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n workdir?: string;\n /** Run in the background and return a task id immediately. No timeout applies. */\n run_in_background?: boolean;\n }): Promise;\n /** Ask the executor to kill a running background bash task by task id. */\n bash_kill(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output. */\n bash_output(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Edit an existing UTF-8 text file by replacing literal text. */\n edit(args: {\n /** Path to edit, resolved by the filesystem backend. */\n file_path: string;\n /** Literal text to replace. Must match exactly. */\n old_string: string;\n /** Literal replacement text. Use an empty string to delete the match. */\n new_string: string;\n /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n replace_all?: boolean;\n }): Promise;\n /** Read a UTF-8 text file and return line-numbered content. */\n read(args: {\n /** Path to read, resolved by the filesystem backend. */\n file_path: string;\n /** 1-based first line to return. Defaults to 1. */\n offset?: number;\n /** Maximum number of lines to return. Defaults to 2000. */\n limit?: number;\n }): Promise;\n /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. */\n subagent(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */\n prompt: string;\n }): Promise;\n /** Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. */\n subagent_fork(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */\n prompt: string;\n }): Promise;\n /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */\n todo_write(args: {\n /** The COMPLETE task list, replacing any previous list. */\n todos: ({\n /** What the task is — a short imperative line. */\n content: string;\n /** pending (not started) | in_progress (now) | completed (done). */\n status: \"pending\" | \"in_progress\" | \"completed\";\n })[];\n }): Promise;\n /** Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. - `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. - `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. - `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. */\n workflow(args: {\n /** The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `). */\n script: string;\n /** The workflow identity block (plain JSON — never code). */\n meta: {\n /** Short kebab-case workflow name. */\n name: string;\n /** One-line description of what the workflow does. */\n description: string;\n /** Optional guidance on when this workflow applies. */\n whenToUse?: string;\n /** Optional phase declarations matched by phase() calls. */\n phases?: {\n /** The phase title phase() calls match by exact string. */\n title: string;\n /** Optional one-line description of the phase. */\n detail?: string;\n /** Optional model override this phase is expected to use. */\n model?: string;\n }[];\n };\n /** Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}). */\n args?: Record;\n }): Promise;\n /** Create or fully replace a UTF-8 text file. */\n write(args: {\n /** Path to write, resolved by the filesystem backend. */\n file_path: string;\n /** Full UTF-8 text content to write. */\n content: string;\n }): Promise;\n}\n```","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under mode]` — a policy denial, not a bug in the command; do not retry another way (a background task reports the same marker via bash_output once it has finished). Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."}},"required":["code"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783611774792,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783611774792,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783611774879,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl b/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl index 72533bcdeb..0793952e95 100644 --- a/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783611771394,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783611771394,"data":{"content":[{"type":"text","text":"Using ONE run_code program: call the bash tool twice — exactly `echo CODE_ONE` then exactly `echo CODE_TWO` — and return the two outputs joined with a plus sign. Then reply with that joined string only and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783611771396,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783611771396,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/2c/psb0_fmx7hbgz558xjt_f0l00000gn/T/acp-snap-cwd-BteTVR.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's text output as a string. Tool arguments must be JSON-serializable.\n- A FAILED tool call rejects with an `Error` carrying the tool's error text — `try/catch` it to handle and continue.\n- Calls execute sequentially, even under `Promise.all`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ndeclare const tools: {\n /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. */\n bash(args: {\n /** The bash command to execute. */\n command: string;\n /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n description: string;\n /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n timeoutMs?: number;\n /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n workdir?: string;\n /** Run in the background and return a task id immediately. No timeout applies. */\n run_in_background?: boolean;\n }): Promise;\n /** Ask the executor to kill a running background bash task by task id. */\n bash_kill(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output. */\n bash_output(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Edit an existing UTF-8 text file by replacing literal text. */\n edit(args: {\n /** Path to edit, resolved by the filesystem backend. */\n file_path: string;\n /** Literal text to replace. Must match exactly. */\n old_string: string;\n /** Literal replacement text. Use an empty string to delete the match. */\n new_string: string;\n /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n replace_all?: boolean;\n }): Promise;\n /** Read a UTF-8 text file and return line-numbered content. */\n read(args: {\n /** Path to read, resolved by the filesystem backend. */\n file_path: string;\n /** 1-based first line to return. Defaults to 1. */\n offset?: number;\n /** Maximum number of lines to return. Defaults to 2000. */\n limit?: number;\n }): Promise;\n /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. */\n subagent(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */\n prompt: string;\n }): Promise;\n /** Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. */\n subagent_fork(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */\n prompt: string;\n }): Promise;\n /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */\n todo_write(args: {\n /** The COMPLETE task list, replacing any previous list. */\n todos: ({\n /** What the task is — a short imperative line. */\n content: string;\n /** pending (not started) | in_progress (now) | completed (done). */\n status: \"pending\" | \"in_progress\" | \"completed\";\n })[];\n }): Promise;\n /** Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. - `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. - `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. - `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. */\n workflow(args: {\n /** The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `). */\n script: string;\n /** The workflow identity block (plain JSON — never code). */\n meta: {\n /** Short kebab-case workflow name. */\n name: string;\n /** One-line description of what the workflow does. */\n description: string;\n /** Optional guidance on when this workflow applies. */\n whenToUse?: string;\n /** Optional phase declarations matched by phase() calls. */\n phases?: {\n /** The phase title phase() calls match by exact string. */\n title: string;\n /** Optional one-line description of the phase. */\n detail?: string;\n /** Optional model override this phase is expected to use. */\n model?: string;\n }[];\n };\n /** Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}). */\n args?: Record;\n }): Promise;\n /** Create or fully replace a UTF-8 text file. */\n write(args: {\n /** Path to write, resolved by the filesystem backend. */\n file_path: string;\n /** Full UTF-8 text content to write. */\n content: string;\n }): Promise;\n}\n```","tools":[{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."}},"required":["code"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783611771396,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/2c/psb0_fmx7hbgz558xjt_f0l00000gn/T/acp-snap-cwd-BteTVR.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's text output as a string. Tool arguments must be JSON-serializable.\n- A FAILED tool call rejects with an `Error` carrying the tool's error text — `try/catch` it to handle and continue.\n- Calls execute sequentially, even under `Promise.all`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ndeclare const tools: {\n /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under mode]` — a policy denial, not a bug in the command; do not retry another way (a background task reports the same marker via bash_output once it has finished). Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. */\n bash(args: {\n /** The bash command to execute. */\n command: string;\n /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n description: string;\n /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n timeoutMs?: number;\n /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n workdir?: string;\n /** Run in the background and return a task id immediately. No timeout applies. */\n run_in_background?: boolean;\n }): Promise;\n /** Ask the executor to kill a running background bash task by task id. */\n bash_kill(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output. */\n bash_output(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Edit an existing UTF-8 text file by replacing literal text. */\n edit(args: {\n /** Path to edit, resolved by the filesystem backend. */\n file_path: string;\n /** Literal text to replace. Must match exactly. */\n old_string: string;\n /** Literal replacement text. Use an empty string to delete the match. */\n new_string: string;\n /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n replace_all?: boolean;\n }): Promise;\n /** Read a UTF-8 text file and return line-numbered content. */\n read(args: {\n /** Path to read, resolved by the filesystem backend. */\n file_path: string;\n /** 1-based first line to return. Defaults to 1. */\n offset?: number;\n /** Maximum number of lines to return. Defaults to 2000. */\n limit?: number;\n }): Promise;\n /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. */\n subagent(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */\n prompt: string;\n }): Promise;\n /** Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. */\n subagent_fork(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */\n prompt: string;\n }): Promise;\n /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */\n todo_write(args: {\n /** The COMPLETE task list, replacing any previous list. */\n todos: ({\n /** What the task is — a short imperative line. */\n content: string;\n /** pending (not started) | in_progress (now) | completed (done). */\n status: \"pending\" | \"in_progress\" | \"completed\";\n })[];\n }): Promise;\n /** Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. - `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. - `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. - `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. */\n workflow(args: {\n /** The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `). */\n script: string;\n /** The workflow identity block (plain JSON — never code). */\n meta: {\n /** Short kebab-case workflow name. */\n name: string;\n /** One-line description of what the workflow does. */\n description: string;\n /** Optional guidance on when this workflow applies. */\n whenToUse?: string;\n /** Optional phase declarations matched by phase() calls. */\n phases?: {\n /** The phase title phase() calls match by exact string. */\n title: string;\n /** Optional one-line description of the phase. */\n detail?: string;\n /** Optional model override this phase is expected to use. */\n model?: string;\n }[];\n };\n /** Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}). */\n args?: Record;\n }): Promise;\n /** Create or fully replace a UTF-8 text file. */\n write(args: {\n /** Path to write, resolved by the filesystem backend. */\n file_path: string;\n /** Full UTF-8 text content to write. */\n content: string;\n }): Promise;\n}\n```","tools":[{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."}},"required":["code"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783611771869,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783611771869,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783611771978,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl index 8475c97896..151aed9a4d 100644 --- a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783600629541,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783600629541,"data":{"content":[{"type":"text","text":"Reply with exactly the word: PONG. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783600629542,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783600629542,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/bn/vj1dvck95yd5jh3x4wskflxm0000gn/T/acp-snap-cwd-ka5r8w.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783600629542,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/bn/vj1dvck95yd5jh3x4wskflxm0000gn/T/acp-snap-cwd-ka5r8w.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under mode]` — a policy denial, not a bug in the command; do not retry another way (a background task reports the same marker via bash_output once it has finished). Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783600630819,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783600630820,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783600630822,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/knip.json b/knip.json index ba6dfb6fb2..c0c202a221 100644 --- a/knip.json +++ b/knip.json @@ -15,6 +15,10 @@ ], "project": ["scripts/**/*.ts", "examples/**/*.ts"] }, + "packages/bash/bash-sandbox": { + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] + }, "packages/sandbox/sandbox-local": { "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] diff --git a/packages/bash/README.md b/packages/bash/README.md index 9a9dba88d5..4072998f3e 100644 --- a/packages/bash/README.md +++ b/packages/bash/README.md @@ -1,11 +1,12 @@ # bash/ — bash capability family -The canonical three-package capability seam (see [capability seams](../../docs/rfc/implemented/architecture/2026-06-13-capability-seams.md)): an abstract executor interface, a concrete local implementation, and the model-facing tool that consumes it. All **product** packages. +The canonical three-package capability seam (see [capability seams](../../docs/rfc/implemented/architecture/2026-06-13-capability-seams.md)): an abstract executor interface, concrete implementations, and the model-facing tool that consumes it. All **product** packages. | Package | Role | ctx key | |---|---|---| -| `bash/` | Abstract bash executor seam (interface + vocabulary) | `ctx.bash` | +| `bash/` | Abstract bash executor seam (interface + vocabulary; sandbox result facts carry the [`sandbox/`](../sandbox/README.md) seam's mode/enforcement vocabulary) | `ctx.bash` | | `bash-local/` | Local-subprocess `BashExecutor` implementation | (registers `ctx.bash`) | +| `bash-sandbox/` | Sandbox-consuming `BashExecutor` (wraps every command argv via `ctx.sandbox`, stamps denial/enforcement facts; extends `bash-local`'s mechanics) | (registers `ctx.bash`) | | `tool-bash/` | Model-facing `bash`/`bash_output`/`bash_kill` tool schemas | (registers on `ctx.tools`) | -The interface lives at `bash/bash/`. A sandboxed executor would replace `bash-local` without touching the interface or the tool — the split is what makes that possible. +The interface lives at `bash/bash/`. `bash-sandbox` replacing `bash-local` without touching the interface or the tool is the split doing exactly what it exists for — a leaf `cordis.yml` picks one executor entry, plus a `ctx.sandbox` provider entry for the confined one (see [examples/sandbox-acp-agent](../../examples/sandbox-acp-agent/)). diff --git a/packages/bash/bash-local/README.md b/packages/bash/bash-local/README.md index dec29ce93b..069adb3576 100644 --- a/packages/bash/bash-local/README.md +++ b/packages/bash/bash-local/README.md @@ -27,4 +27,4 @@ Design surveyed against the bash tools of Claude Code, OpenCode, Codex, and pi; ## Sandboxing -`TODO(permissions/sandbox)`: execution policy does NOT belong in this package. Use the `tools/pre-execute` deny/ask gate or implement a sandboxing `BashExecutor` — see docs/architecture.md § Extending The Harness. Reference points: Claude Code wraps commands in sandbox-exec/bubblewrap; Codex applies seatbelt/landlock plus an execpolicy prefix-rule engine. +Execution policy does NOT belong in this package: this executor always runs commands unconfined. Confinement is [`dsh-bash-sandbox`](../bash-sandbox/README.md), which extends this executor verbatim and confines commands under the `ctx.sandbox` seam's bwrap/Landlock/Seatbelt backends ([sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)); per-call allow/deny/ask policy belongs on the `tools/pre-execute` gate. diff --git a/packages/bash/bash-local/src/index.ts b/packages/bash/bash-local/src/index.ts index 3e09d7e35b..6903c06e32 100644 --- a/packages/bash/bash-local/src/index.ts +++ b/packages/bash/bash-local/src/index.ts @@ -133,6 +133,10 @@ export class LocalBashExecutor extends BashExecutor { // Carry the owner through verbatim (required-but-nullable on the spec): // the executor never interprets it — the consumer's access policy does. owner: request.owner, + // Carry a sandbox-mode override through verbatim: this executor never + // confines, so the field is inert here (the seam contract) — a + // sandboxing subclass overrides resolve() to stamp its default instead. + sandboxMode: request.sandboxMode, } } @@ -212,6 +216,18 @@ export class LocalBashExecutor extends BashExecutor { return this.tasks.get(id) } + /** + * Full collected stderr of a tracked task from stream start (bounded by the + * in-memory cap; bytes only in the spill file are not re-read). A protected + * seam for subclasses that classify a settled task's outcome — reading here + * does NOT advance the consumer's {@link readOutput} cursor. An unknown id + * (a task already dropped by disposal) reads as empty. + */ + protected collectedStderr(id: BashTaskId): string { + const task = this.tasks.get(id) + return task === undefined ? '' : task.running.stderr.readFrom(0).text + } + ownerOf(id: BashTaskId): OwnerToken | undefined { // Unknown id and known-but-ownerless both read as undefined — the consumer // treats undefined as "open" and a truly unknown id fails at readOutput/kill. diff --git a/packages/bash/bash-sandbox/README.md b/packages/bash/bash-sandbox/README.md new file mode 100644 index 0000000000..9ceb793e27 --- /dev/null +++ b/packages/bash/bash-sandbox/README.md @@ -0,0 +1,33 @@ +# @deepseek-ai/dsh-bash-sandbox + +Sandbox-consuming implementation of the [`@deepseek-ai/dsh-bash`](../bash/) executor seam. Load it **instead of** `@deepseek-ai/dsh-bash-local`, together with a [`ctx.sandbox`](../../sandbox/sandbox/) provider (e.g. [`@deepseek-ai/dsh-sandbox-local`](../../sandbox/sandbox-local/)) — the model-facing tool layer (`dsh-tool-bash`) is untouched; that swap is exactly what the seams exist for. + +Every command is confined by handing the provider the exact `['bash', '-c', command]` argv this executor is about to spawn and spawning the returned (wrapped) argv instead. WHICH platform runner confines it — and whether one is usable at all (fail closed with a structured `SANDBOX_UNAVAILABLE` error, never a silent unconfined run) — is the provider's concern; this package owns the bash side only. + +| Mode | File effects | +|---|---| +| `read-only` (default) | No writes anywhere (of `/dev`, only the `/dev/null` node is writable, so `>/dev/null` keeps working) | +| `workspace-write` | Writes only under `workspaceRoot` + `/tmp` (ephemeral under bwrap, the host `/tmp` under Landlock, `/private/tmp` plus the per-user temp dir under Seatbelt) | +| `danger-full-access` | No confinement; the provider is never consulted. Execution is `dsh-bash-local`'s verbatim — foreground results still carry `sandbox: { mode, denied: false }` (no `enforcement`: nothing was confined), background tasks carry no sandbox facts | + +Semantics: + +- **Denials are result facts.** A failed run whose stderr carries the selected backend's own denial dialect — the signatures the provider stamps on every wrap (EROFS text under bwrap, EACCES under Landlock, EPERM under Seatbelt) — is reported as `BashRunResult.sandbox.denied: true` (conservative classification, read from the collected stderr tail); every CONFINED run also carries the mode it executed under (`result.sandbox.mode`) and the provider's enforcement completeness (`result.sandbox.enforcement`: `full`, or `partial` on an older Landlock ABI). +- **Runner failures are sandbox failures, never task failures.** A failed run matching the wrap's `runnerFailureSignatures` (the runner's own error prefix — also what the shell prints for a missing runner) means the sandbox itself broke and the command NEVER RAN; the check outranks denial classification because a runner's error text can contain denial words. The foreground path re-throws it as the structured fail-closed `SANDBOX_UNAVAILABLE` error, with the runner's first stderr line as the cause; a settled background task stamps `task.sandbox.runnerFailed` instead (no error channel remains after settle), which `bash_output` renders as its own marker. +- **Config-time default, per-call policy.** The DEFAULT mode is fixed by this entry's config for the executor's lifetime; `resolve()` stamps it onto every spec, and an explicit request-level `sandboxMode` override — set by the tool layer only for a call whose wider mode a human granted through `ctx.approval` ([the sandbox RFC § Escalation](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)) — makes THAT call run, classify, and report under its own mode while every neighbor keeps the default (background facts are stamped per task at settle). The capability fact `ctx.bash.sandboxMode` reports the configured default so the tool layer advertises escalation only when this executor is mounted. The model learns of the sandbox only through result facts — the static bash tool description explains the denial marker; there is no current-mode statement in the system prompt. +- **File effects only.** Network and process visibility are deliberately not restricted — the mode vocabulary does not pretend to cover what the backend does not enforce. +- Process mechanics (spawn, process-group kills, output collection/spill, background tasks, credential scrub) are inherited verbatim from [`dsh-bash-local`](../bash-local/); the runner ladder, probes, and the per-platform Landlock launcher packages live with [`dsh-sandbox-local`](../../sandbox/sandbox-local/). + +Deny-only at the seam: a denial is a reported fact, and this executor never negotiates permissions itself — the approval question lives in the tool layer (`dsh-tool-bash`), which drives the override this package honors. + +```yaml +- id: sandbox + name: '@deepseek-ai/dsh-sandbox-local' +- id: bash + name: '@deepseek-ai/dsh-bash-sandbox' + config: + mode: read-only + workspaceRoot: !!js process.cwd() +``` + +The keyless consumer-integration proofs are `tests/bwrap.e2e.ts`, `tests/landlock.e2e.ts`, and `tests/seatbelt.e2e.ts` (the real provider + real runner driven through `ctx.bash`, world-verified, each self-skipping where its runner is absent); see [`examples/sandbox-acp-agent`](../../../examples/sandbox-acp-agent/) for the runnable demo. diff --git a/packages/bash/bash-sandbox/package.json b/packages/bash/bash-sandbox/package.json new file mode 100644 index 0000000000..0077511946 --- /dev/null +++ b/packages/bash/bash-sandbox/package.json @@ -0,0 +1,41 @@ +{ + "name": "@deepseek-ai/dsh-bash-sandbox", + "description": "Sandbox-consuming implementation of the DeepSeek Harness bash executor seam (confines every command via ctx.sandbox, reports denial/enforcement result facts)", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-bash": "^0.0.1", + "@deepseek-ai/dsh-bash-local": "^0.0.1", + "@deepseek-ai/dsh-sandbox": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "schemastery": "^3.18.0" + }, + "devDependencies": { + "@deepseek-ai/dsh-bash": "workspace:^", + "@deepseek-ai/dsh-bash-local": "workspace:^", + "@deepseek-ai/dsh-sandbox": "workspace:^", + "@deepseek-ai/dsh-sandbox-local": "workspace:^", + "node-addon-landlock-run": "0.0.0-test.0", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/bash/bash-sandbox/src/index.ts b/packages/bash/bash-sandbox/src/index.ts new file mode 100644 index 0000000000..d4f7d867ad --- /dev/null +++ b/packages/bash/bash-sandbox/src/index.ts @@ -0,0 +1,305 @@ +/** + * `SandboxBashExecutor`: the sandbox-consuming implementation of the + * `@deepseek-ai/dsh-bash` executor seam. Every spawned command is wrapped by + * the `ctx.sandbox` provider (`@deepseek-ai/dsh-sandbox`) according to the + * configured {@link SandboxMode}: the executor hands the provider the exact + * `['bash', '-c', command]` argv it is about to spawn and spawns the wrapped + * argv instead. WHICH platform runner confines it — and whether one is + * usable at all (the provider fails CLOSED with a structured + * `SANDBOX_UNAVAILABLE` error rather than passing the argv through) — is the + * provider's concern (`@deepseek-ai/dsh-sandbox-local` first). + * + * Extends `LocalBashExecutor` so all process mechanics — spawn, process-group + * kills, timeout escalation, output collection and spill files, background + * tasks, the credential scrub — are the local implementation's, verbatim. + * This package adds only the seam consumption and the result facts, which is + * exactly the split the capability seam was designed for (a sandboxing + * executor replaces `dsh-bash-local` without touching `dsh-tool-bash`, and + * swapping the confinement backend never touches this package). + * + * A failed run whose stderr carries the selected backend's own denial + * dialect (the signatures the provider stamps on every wrap) is classified + * as a sandbox denial on `BashRunResult.sandbox`, and every confined result + * also carries how completely the selected runner enforces the mode + * (`sandbox.enforcement`, from the provider's wrap). A failure carrying the + * backend's RUNNER-FAILURE signature instead means the sandbox itself broke + * and the command never ran: the foreground path re-throws it as the + * structured fail-closed `SANDBOX_UNAVAILABLE` error (late twin of the + * provider's confine-time throw), a settled background task stamps + * `sandbox.runnerFailed` — either way a broken sandbox can never read as a + * failing command, and the command never slips through unconfined. + * + * Deny-only at the seam, escalation at the tool: a denial is a reported FACT + * here, and the one-shot user-approved escalated retry of a denied action + * (docs/rfc/proposed/feature/2026-07-06-sandbox.md) is driven by + * `dsh-tool-bash` through `ctx.approval` — this executor's contribution is the + * per-call `sandboxMode` override it honors in {@link resolve}: an escalated + * call runs (and classifies, and reports) under ITS granted mode while every + * neighboring call keeps the configured default. + * + * @module @deepseek-ai/dsh-bash-sandbox + */ + +import { resolve } from 'node:path' +import { Context } from 'cordis' +import z from 'schemastery' +import type { BashExecRequest, BashExecSpec, BashRunResult, BashTask, BashTaskId } from '@deepseek-ai/dsh-bash' +import { SandboxUnavailableError } from '@deepseek-ai/dsh-sandbox' +import type { ConfinedSandboxMode, SandboxEnforcement, SandboxMode } from '@deepseek-ai/dsh-sandbox' +import { LocalBashExecutor } from '@deepseek-ai/dsh-bash-local' +import type { Config as LocalConfig } from '@deepseek-ai/dsh-bash-local' + +/** + * Plugin config: the local executor's knobs plus the sandbox policy. All + * optional — `static Config` supplies the defaults (`mode: 'read-only'` is the + * fail-safe default; an example that wants a workspace-writable agent opts in + * explicitly). The runner choice is NOT configured here: which platform + * backend confines the command is the `ctx.sandbox` provider's config. + */ +export interface Config extends LocalConfig { + /** File-sandbox mode commands run under (default: `read-only`). */ + mode?: SandboxMode + /** + * Root directory `workspace-write` mode may write under (default: the + * executor's default working directory — `cwd`, else `process.cwd()`). + */ + workspaceRoot?: string +} + +/** + * Quote one string as a single-quoted POSIX shell word (embedded single + * quotes become `'\''`), so a wrapped argv element survives the outer + * `bash -c` re-parse byte-for-byte. + * @param text - the raw argv element to quote. + * @returns the single-quoted shell word. + */ +export function shellQuote(text: string): string { + return `'${text.replaceAll("'", String.raw`'\''`)}'` +} + +/** + * Conservative sandbox-denial classifier: a run counts as denied only when it + * FAILED (nonzero exit — a signal kill is not a denial) and its stderr + * carries one of the SELECTED BACKEND's own denial signatures — the dialect + * the provider stamps on every wrap (`ConfinedArgv.denialSignatures`: + * `Read-only file system` under bwrap's EROFS mounts, `Permission denied` + * under Landlock's EACCES, `Operation not permitted` under Seatbelt's + * EPERM). Matching the backend's dialect rather than a cross-backend union + * keeps the classifier from claiming denials the active backend never + * produces (bare EPERM text under a Linux runner names non-file boundaries — + * mount, kill, ptrace — that fail the same way unsandboxed). Text inference + * is the fallback signal until a runner provides a structured one (which + * wins once it exists); it errs toward NOT claiming a denial, and its known + * residual imprecision is non-sandbox text in the active dialect (an ssh + * auth failure reads as a denial under Landlock, a refused `kill` under + * Seatbelt). + * @param result - the settled foreground run to classify. + * @param signatures - the active wrap's denial dialect, case-insensitive + * stderr substrings. + * @returns whether the run's failure reads as a sandbox denial. + */ +export function classifyDenial(result: BashRunResult, signatures: readonly string[]): boolean { + return matchesSignature(result.exitCode, result.stderr.text, signatures) +} + +/** + * Runner-failure classifier: a failed run whose stderr carries the SELECTED + * BACKEND's own runner-failure signature (`ConfinedArgv. + * runnerFailureSignatures`: the runner's error prefix, which also matches + * the shell's runner-not-found message) means the SANDBOX itself failed and + * the command never ran. Checked BEFORE {@link classifyDenial} — a runner's + * error text can contain denial words (an unopenable grant root reports + * `Permission denied`) — and surfaced as the fail-closed + * `SANDBOX_UNAVAILABLE` error on the foreground path, `sandbox.runnerFailed` + * on a settled background task. Same conservative-text-inference stance and + * residual imprecision as the denial classifier (a failing task that itself + * prints the runner's prefix reads as a runner failure). + * @param result - the settled foreground run to classify. + * @param signatures - the active wrap's runner-failure signatures, + * case-insensitive stderr substrings. + * @returns whether the run's failure reads as the runner itself failing. + */ +export function classifyRunnerFailure(result: BashRunResult, signatures: readonly string[]): boolean { + return matchesSignature(result.exitCode, result.stderr.text, signatures) +} + +/** + * The classifier core shared by foreground results and settled background + * tasks: failed AND signature present. Lowercases BOTH sides — the seam + * declares its signatures case-insensitive, and producers compose them from + * runtime data of any case (an `argv0` path, `No such file or directory`). + */ +function matchesSignature(exitCode: number | null, stderr: string, signatures: readonly string[]): boolean { + if (exitCode === null || exitCode === 0) return false + const lowered = stderr.toLowerCase() + return signatures.some(signature => lowered.includes(signature.toLowerCase())) +} + +/** + * Sandbox-consuming bash executor. Registers as `ctx.bash` (loading it + * INSTEAD OF `dsh-bash-local`, together with a `ctx.sandbox` provider, is + * the whole swap — the tool layer is untouched). The DEFAULT mode is fixed at + * config time for the executor's lifetime; a single call escalates past it + * only through the request-level `sandboxMode` override its {@link resolve} + * stamps onto the spec (granted upstream via `ctx.approval` — the + * sandbox RFC § Escalation). The model learns of the sandbox only through + * result facts: the static bash tool description explains the denial marker, + * and every run's `result.sandbox` carries the mode it executed under and how + * completely the runner enforced it. Runtime default-mode switching and a + * current-mode prompt statement are deliberately absent until a config + * surface exists to drive them (TODO(sandbox-config): the sandbox RFC's + * future-work list brings both with the per-session config options). + */ +export class SandboxBashExecutor extends LocalBashExecutor { + static inject = ['sandbox'] + + // The sandbox-specific fields intersect the local executor's Config as an + // inline schema call: the config catalog walks `static Config` statically. + static override Config: z = z.intersect([ + LocalBashExecutor.Config, + z.object({ + mode: z.union(['read-only', 'workspace-write', 'danger-full-access'] as const).default('read-only'), + workspaceRoot: z.string(), + }), + ]) + + private readonly mode: SandboxMode + private readonly workspaceRoot: string + /** + * Per-task facts, keyed by task id from `start()` until the settle stamp + * consumes them: the mode the task runs under (per-call — an escalated task + * differs from its neighbors) plus its wrap facts. The seam returns facts + * PER WRAP — a provider may legally vary enforcement or dialect between + * calls — so overlapping background tasks must each classify against their + * OWN wrap; a single latest-wrap field would let a later `start()` clobber + * an earlier task's facts before it settles. A `danger-full-access` task + * has NO entry (nothing confined it), which is what the settle stamp keys + * off. + */ + private readonly taskFacts = new Map() + + constructor(ctx: Context, config: Config) { + super(ctx, config) + // schemastery (static Config) already filled the defaulted fields — the + // cast records that runtime fact (mirrors LocalBashExecutor's config + // cast). `workspaceRoot` and `cwd` have NO schema default, so their + // fallback chain is real branching. + this.mode = config.mode as SandboxMode + this.workspaceRoot = resolve(config.workspaceRoot ?? config.cwd ?? process.cwd()) + } + + /** The configured default mode — the capability fact the tool layer reads. */ + override get sandboxMode(): SandboxMode { + return this.mode + } + + /** + * Stamp the effective mode onto the spec — the request's explicit override + * (an approved escalation), else this executor's configured default — so + * defaulting stays an explicit resolve step and `run()`/`start()` read the + * spec, never the config. + */ + override resolve(request: BashExecRequest): BashExecSpec { + return { ...super.resolve(request), sandboxMode: request.sandboxMode ?? this.mode } + } + + override async run(spec: BashExecSpec): Promise { + // resolve() always stamps the mode; the cast records that invariant + // (mirrors the constructor's config casts). + const mode = spec.sandboxMode as SandboxMode + if (mode === 'danger-full-access') { + const result = await super.run(spec) + return { ...result, sandbox: { mode, denied: false } } + } + const confined = this.confine(spec.command, mode) + const result = await super.run({ ...spec, command: confined.command }) + // Runner failure outranks denial: the sandbox itself failed and the + // command NEVER RAN — surface the same structured fail-closed error a + // confine-time discovery throws (late detection, same outcome), with + // the runner's own first stderr line as the cause. Returning it as a + // task result would let a broken sandbox read as a failing command. + if (classifyRunnerFailure(result, confined.runnerFailureSignatures)) { + throw new SandboxUnavailableError(mode, result.stderr.text.trim().split('\n')[0]) + } + return { ...result, sandbox: { mode, denied: classifyDenial(result, confined.denialSignatures), enforcement: confined.enforcement } } + } + + override start(spec: BashExecSpec): BashTask { + // Same stamped-by-resolve invariant as run(). + const mode = spec.sandboxMode as SandboxMode + if (mode === 'danger-full-access') return super.start(spec) + // Sandbox facts are stamped at settle time by {@link notifyTaskDone} + // (denial classification runs against the settled task's collected + // stderr). The map entry lands synchronously after spawn, strictly + // before the earliest possible settle (a process exit reaches us no + // sooner than the next tick). + const confined = this.confine(spec.command, mode) + const task = super.start({ ...spec, command: confined.command }) + const { enforcement, denialSignatures, runnerFailureSignatures } = confined + this.taskFacts.set(task.id, { mode, enforcement, denialSignatures, runnerFailureSignatures }) + return task + } + + /** + * Stamp the sandbox facts BEFORE completion listeners run: the base + * executor notifies from inside the task's settle path, so overriding the + * notification point is what makes `task.sandbox` visible to `onTaskDone` + * consumers and `done` awaiters alike. Each task classifies against the + * facts of ITS OWN wrap and reports ITS OWN mode (consumed from the + * per-task map here — settle is the entry's end of life): with per-call + * escalation, tasks under different modes settle side by side, so keying + * anything off the configured default would misreport them. A + * `danger-full-access` task has no map entry and carries no facts (nothing + * confined it); a signal-killed task (null exit code) is never a denial, + * mirroring the foreground classifier. + */ + protected override notifyTaskDone(task: BashTask): void { + const facts = this.taskFacts.get(task.id) + if (facts !== undefined) { + this.taskFacts.delete(task.id) + const stderr = this.collectedStderr(task.id) + // Runner failure outranks denial (the command never ran; the runner's + // own error text can contain denial words). A settled task has no + // error channel left, so the fact IS the surface here — the foreground + // path throws instead. + const runnerFailed = matchesSignature(task.exitCode, stderr, facts.runnerFailureSignatures) + task.sandbox = { + mode: facts.mode, + denied: !runnerFailed && matchesSignature(task.exitCode, stderr, facts.denialSignatures), + enforcement: facts.enforcement, + ...(runnerFailed ? { runnerFailed } : {}), + } + } + super.notifyTaskDone(task) + } + + /** + * Wrap one shell command via the `ctx.sandbox` provider: hand over the + * exact `['bash', '-c', command]` argv this executor would spawn, get back + * the confined argv, and re-assemble it into the `exec …` command string + * the inherited spawn path runs (the outer `bash -c` that `runBash` spawns + * `exec`s into the runner, so no extra shell lingers). Provider errors + * (fail-closed `SANDBOX_UNAVAILABLE`) propagate to the caller unchanged. + */ + private confine(command: string, mode: ConfinedSandboxMode): { + command: string + enforcement: SandboxEnforcement + denialSignatures: readonly string[] + runnerFailureSignatures: readonly string[] + } { + const confined = this.ctx.sandbox.confine(['bash', '-c', command], { mode, workspaceRoot: this.workspaceRoot }) + return { + command: `exec ${confined.argv.map(shellQuote).join(' ')}`, + enforcement: confined.enforcement, + denialSignatures: confined.denialSignatures, + runnerFailureSignatures: confined.runnerFailureSignatures, + } + } +} + +export default SandboxBashExecutor diff --git a/packages/bash/bash-sandbox/tests/bwrap.e2e.ts b/packages/bash/bash-sandbox/tests/bwrap.e2e.ts new file mode 100644 index 0000000000..6a748bc389 --- /dev/null +++ b/packages/bash/bash-sandbox/tests/bwrap.e2e.ts @@ -0,0 +1,101 @@ +import { spawnSync } from 'node:child_process' +import { existsSync, readFileSync } from 'node:fs' +import { mkdtemp, rm } from 'node:fs/promises' +import { homedir } from 'node:os' +import { join } from 'node:path' +import { afterEach, describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import { bwrapProfileArgs, LocalSandboxProvider } from '@deepseek-ai/dsh-sandbox-local' +import { SandboxBashExecutor } from '@deepseek-ai/dsh-bash-sandbox' + +/** + * KEYLESS consumer-integration proof under bwrap: the REAL + * `LocalSandboxProvider` (nothing forced — bwrap is the ladder's first rung, + * so a passing probe selects it) underneath the REAL `SandboxBashExecutor`, + * driven through the executor's public run/start paths. Verifies the WORLD + * (files exist or don't) plus the stamped result facts — in particular that + * bwrap's EROFS denial text classifies as `denied: true` through the + * wrap-carried dialect; the backend-only confinement proofs live with + * `@deepseek-ai/dsh-sandbox-local`. + * + * Self-skips wherever the functional probe fails — no `bwrap` on PATH, or a + * host that denies unprivileged user namespaces. + * + * HOME-based dirs on purpose: bwrap's `/tmp` is an ephemeral mount, so only + * paths outside it prove the workspace-root boundary. + */ + +const probe = spawnSync('bwrap', [...bwrapProfileArgs({ mode: 'read-only', workspaceRoot: '/' }), '--', 'true'], { timeout: 5_000, stdio: 'ignore' }) +const bwrapUsable = probe.status === 0 + +let ctx: Context | undefined +const tempDirs: string[] = [] + +afterEach(async () => { + await ctx?.fiber.dispose() + ctx = undefined + await Promise.all(tempDirs.splice(0).map(dir => rm(dir, { recursive: true, force: true }))) +}) + +async function tempDir(base: string): Promise { + const dir = await mkdtemp(join(base, 'dsh-bwrap-e2e-')) + tempDirs.push(dir) + return dir +} + +async function sandboxedBash(workspace: string, mode: 'read-only' | 'workspace-write'): Promise { + ctx = new Context() + await ctx.plugin(LocalSandboxProvider, {}) + await ctx.plugin(SandboxBashExecutor, { mode, cwd: workspace, workspaceRoot: workspace, timeoutMs: 30_000 }) + return ctx.bash as SandboxBashExecutor +} + +describe.skipIf(!bwrapUsable)('bash-sandbox: real bwrap confinement through ctx.bash', () => { + it('read-only denies a write — the file must NOT exist, and EROFS text classifies as a denial', async () => { + const workdir = await tempDir(homedir()) + const bash = await sandboxedBash(workdir, 'read-only') + const result = await bash.run(bash.resolve({ command: `echo hi > ${workdir}/denied.txt` })) + expect(result.exitCode).not.toBe(0) + expect(result.sandbox).toEqual({ mode: 'read-only', denied: true, enforcement: 'full' }) + expect(existsSync(join(workdir, 'denied.txt'))).toBe(false) + }) + + it('workspace-write lands a write inside the workspace root and still denies one beside it', async () => { + const workdir = await tempDir(homedir()) + const outside = await tempDir(homedir()) + const bash = await sandboxedBash(workdir, 'workspace-write') + + const inside = await bash.run(bash.resolve({ command: `printf bwrap-ok > ${workdir}/allowed.txt` })) + expect(inside.exitCode).toBe(0) + expect(inside.sandbox).toEqual({ mode: 'workspace-write', denied: false, enforcement: 'full' }) + expect(readFileSync(join(workdir, 'allowed.txt'), 'utf8')).toBe('bwrap-ok') + + const denied = await bash.run(bash.resolve({ command: `echo hi > ${outside}/denied.txt` })) + expect(denied.exitCode).not.toBe(0) + expect(denied.sandbox).toEqual({ mode: 'workspace-write', denied: true, enforcement: 'full' }) + expect(existsSync(join(outside, 'denied.txt'))).toBe(false) + }) + + it('classifies a background denial once the task settles', async () => { + const workdir = await tempDir(homedir()) + const bash = await sandboxedBash(workdir, 'read-only') + const task = bash.start(bash.resolve({ command: `echo hi > ${workdir}/bg-denied.txt` })) + await task.done + expect(task.sandbox).toEqual({ mode: 'read-only', denied: true, enforcement: 'full' }) + expect(existsSync(join(workdir, 'bg-denied.txt'))).toBe(false) + }) + + it('an approved escalated retry — the spec-level workspace-write override — lands the exact write read-only denied', async () => { + const workdir = await tempDir(homedir()) + const bash = await sandboxedBash(workdir, 'read-only') + const command = `printf escalated > ${workdir}/escalated.txt` + const strict = await bash.run(bash.resolve({ command })) + expect(strict.exitCode).not.toBe(0) + expect(strict.sandbox).toEqual({ mode: 'read-only', denied: true, enforcement: 'full' }) + expect(existsSync(join(workdir, 'escalated.txt'))).toBe(false) + const retried = await bash.run(bash.resolve({ command, sandboxMode: 'workspace-write' })) + expect(retried.exitCode).toBe(0) + expect(retried.sandbox).toEqual({ mode: 'workspace-write', denied: false, enforcement: 'full' }) + expect(readFileSync(join(workdir, 'escalated.txt'), 'utf8')).toBe('escalated') + }) +}) diff --git a/packages/bash/bash-sandbox/tests/landlock.e2e.ts b/packages/bash/bash-sandbox/tests/landlock.e2e.ts new file mode 100644 index 0000000000..8263dad6fe --- /dev/null +++ b/packages/bash/bash-sandbox/tests/landlock.e2e.ts @@ -0,0 +1,100 @@ +import { spawnSync } from 'node:child_process' +import { existsSync, readFileSync } from 'node:fs' +import { mkdtemp, rm } from 'node:fs/promises' +import { homedir, tmpdir } from 'node:os' +import { join } from 'node:path' +import { afterEach, describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import { launcherPath } from 'node-addon-landlock-run' +import { LocalSandboxProvider } from '@deepseek-ai/dsh-sandbox-local' +import { SandboxBashExecutor } from '@deepseek-ai/dsh-bash-sandbox' + +/** + * KEYLESS consumer-integration proof: the REAL `LocalSandboxProvider` (bwrap + * rung forced off, so the npm-distributed `landlock-run` confines) underneath the + * REAL `SandboxBashExecutor`, driven through the executor's public run/start + * paths. Verifies the WORLD (files exist or don't) plus the stamped result + * facts; the backend-only confinement proofs live with + * `@deepseek-ai/dsh-sandbox-local`. + * + * Self-skips when the running kernel does not enforce Landlock; the + * launcher binary itself arrives with `pnpm install` (`node-addon-landlock-run`). + */ + +const probe = spawnSync(launcherPath(), ['--probe'], { timeout: 5_000, encoding: 'utf8' }) +const landlockUsable = probe.status === 0 +/** The kernel's enforcement level from the probe report — stamped facts below must match it. */ +const enforcement = /partially enforced/.test(probe.stdout ?? '') ? 'partial' : 'full' + +let ctx: Context | undefined +const tempDirs: string[] = [] + +afterEach(async () => { + await ctx?.fiber.dispose() + ctx = undefined + await Promise.all(tempDirs.splice(0).map(dir => rm(dir, { recursive: true, force: true }))) +}) + +async function tempDir(base: string): Promise { + const dir = await mkdtemp(join(base, 'dsh-landlock-e2e-')) + tempDirs.push(dir) + return dir +} + +async function sandboxedBash(workspace: string, mode: 'read-only' | 'workspace-write'): Promise { + ctx = new Context() + await ctx.plugin(LocalSandboxProvider, {}) + ;(ctx.sandbox as LocalSandboxProvider).internals = { probeBwrap: () => false } + await ctx.plugin(SandboxBashExecutor, { mode, cwd: workspace, workspaceRoot: workspace, timeoutMs: 30_000 }) + return ctx.bash as SandboxBashExecutor +} + +describe.skipIf(!landlockUsable)('bash-sandbox: real Landlock confinement through ctx.bash', () => { + it('read-only denies a write — the file must NOT exist, the result carries denial + enforcement facts', async () => { + const workdir = await tempDir(tmpdir()) + const bash = await sandboxedBash(workdir, 'read-only') + const result = await bash.run(bash.resolve({ command: `echo hi > ${workdir}/denied.txt` })) + expect(result.exitCode).not.toBe(0) + expect(result.sandbox).toEqual({ mode: 'read-only', denied: true, enforcement }) + expect(existsSync(join(workdir, 'denied.txt'))).toBe(false) + }) + + it('workspace-write lands a write inside the workspace root and still denies one beside it', async () => { + const workdir = await tempDir(homedir()) + const outside = await tempDir(homedir()) + const bash = await sandboxedBash(workdir, 'workspace-write') + + const inside = await bash.run(bash.resolve({ command: `printf landlock-ok > ${workdir}/allowed.txt` })) + expect(inside.exitCode).toBe(0) + expect(inside.sandbox).toEqual({ mode: 'workspace-write', denied: false, enforcement }) + expect(readFileSync(join(workdir, 'allowed.txt'), 'utf8')).toBe('landlock-ok') + + const denied = await bash.run(bash.resolve({ command: `echo hi > ${outside}/denied.txt` })) + expect(denied.exitCode).not.toBe(0) + expect(denied.sandbox).toEqual({ mode: 'workspace-write', denied: true, enforcement }) + expect(existsSync(join(outside, 'denied.txt'))).toBe(false) + }) + + it('classifies a background denial once the task settles', async () => { + const workdir = await tempDir(homedir()) + const bash = await sandboxedBash(workdir, 'read-only') + const task = bash.start(bash.resolve({ command: `echo hi > ${workdir}/bg-denied.txt` })) + await task.done + expect(task.sandbox).toEqual({ mode: 'read-only', denied: true, enforcement }) + expect(existsSync(join(workdir, 'bg-denied.txt'))).toBe(false) + }) + + it('an approved escalated retry — the spec-level workspace-write override — lands the exact write read-only denied', async () => { + const workdir = await tempDir(homedir()) + const bash = await sandboxedBash(workdir, 'read-only') + const command = `printf escalated > ${workdir}/escalated.txt` + const strict = await bash.run(bash.resolve({ command })) + expect(strict.exitCode).not.toBe(0) + expect(strict.sandbox).toEqual({ mode: 'read-only', denied: true, enforcement: enforcement }) + expect(existsSync(join(workdir, 'escalated.txt'))).toBe(false) + const retried = await bash.run(bash.resolve({ command, sandboxMode: 'workspace-write' })) + expect(retried.exitCode).toBe(0) + expect(retried.sandbox).toEqual({ mode: 'workspace-write', denied: false, enforcement: enforcement }) + expect(readFileSync(join(workdir, 'escalated.txt'), 'utf8')).toBe('escalated') + }) +}) diff --git a/packages/bash/bash-sandbox/tests/sandbox.spec.ts b/packages/bash/bash-sandbox/tests/sandbox.spec.ts new file mode 100644 index 0000000000..4f92ba38f0 --- /dev/null +++ b/packages/bash/bash-sandbox/tests/sandbox.spec.ts @@ -0,0 +1,327 @@ +/** + * SandboxBashExecutor tests: the CONSUMER side of the sandbox seam. A fake + * `ctx.sandbox` provider (injected as a real cordis service) makes wrapping, + * policy hand-off, fail-closed propagation, classification, and fact + * stamping all deterministic without any real runner; the real-provider + * integration proof lives in `tests/landlock.e2e.ts`. Denials are produced + * with plain unix permissions (a 0555 directory), which exercises the same + * stderr signature the classifier keys on. + */ + +import { chmodSync, mkdirSync, mkdtempSync } from 'node:fs' +import { tmpdir } from 'node:os' +import { join, resolve } from 'node:path' +import { describe, expect, it, vi } from 'vitest' +import { Context } from 'cordis' +import type { BashRunResult, CollectedOutput } from '@deepseek-ai/dsh-bash' +import { SANDBOX_UNAVAILABLE, SandboxProvider, SandboxUnavailableError } from '@deepseek-ai/dsh-sandbox' +import type { ConfinedArgv, SandboxPolicy } from '@deepseek-ai/dsh-sandbox' +import { classifyDenial, classifyRunnerFailure, SandboxBashExecutor, shellQuote } from '@deepseek-ai/dsh-bash-sandbox' +import type { Config } from '@deepseek-ai/dsh-bash-sandbox' + +const spillDir = mkdtempSync(join(tmpdir(), 'dsh-bash-sandbox-spec-')) + +/** One recorded provider call: the argv handed over and the policy it rode with. */ +interface ConfineCall { + argv: string[] + policy: SandboxPolicy +} + +/** The Linux file-denial dialects the fake wraps carry — matches the unix-permission denials the tests below produce. */ +const UNIX_SIGNATURES = ['read-only file system', 'permission denied'] as const + +/** The runner-failure prefix the fake wraps carry (a fake-runner: error line marks the sandbox itself failing). */ +const RUNNER_FAILURE = ['fake-runner: '] as const + +/** A passthrough wrap: the caller's argv unchanged, asserted full — commands run unconfined, deterministically. */ +const passthrough = (argv: readonly string[]): ConfinedArgv => + ({ argv: [...argv], enforcement: 'full', denialSignatures: UNIX_SIGNATURES, runnerFailureSignatures: RUNNER_FAILURE }) + +/** + * Boot a context with a recording fake `ctx.sandbox` (behavior injectable + * per test) and the executor under test on top of it. + */ +async function setup(config: Config = {}, behavior: (argv: readonly string[], policy: SandboxPolicy) => ConfinedArgv = passthrough) { + const calls: ConfineCall[] = [] + class FakeSandboxProvider extends SandboxProvider { + confine(argv: readonly string[], policy: SandboxPolicy): ConfinedArgv { + calls.push({ argv: [...argv], policy }) + return behavior(argv, policy) + } + } + const ctx = new Context() + await ctx.plugin(FakeSandboxProvider) + await ctx.plugin(SandboxBashExecutor, { graceMs: 200, ...config }) + const bash = ctx.bash as SandboxBashExecutor + bash.internals = { spillDir } + return { ctx, bash, calls } +} + +function output(text: string): CollectedOutput { + return { text, truncated: false } +} + +function runResult(exitCode: number | null, stderr: string): BashRunResult { + return { exitCode, signal: null, timedOut: false, aborted: false, timeoutMs: 1000, stdout: output(''), stderr: output(stderr) } +} + +describe('the provider hand-off', () => { + it('hands the provider the exact bash argv and the per-call policy, and runs the returned argv', async () => { + const { bash, calls } = await setup() + const result = await bash.run(bash.resolve({ command: 'echo \'a b\' "c\'d"' })) + expect(result.stdout.text).toBe('a b c\'d\n') + expect(result.sandbox).toEqual({ mode: 'read-only', denied: false, enforcement: 'full' }) + expect(calls).toEqual([{ + argv: ['bash', '-c', 'echo \'a b\' "c\'d"'], + policy: { mode: 'read-only', workspaceRoot: resolve(process.cwd()) }, + }]) + }) + + it('a wrapped argv from the provider is what actually spawns (prefix survives, quoting round-trips)', async () => { + // The fake wraps with `env MARKER=...` — a real (if tiny) runner prefix: + // the sentinel only prints if the executor spawned the WRAPPED argv. + const { bash } = await setup({}, argv => ({ argv: ['env', 'DSH_WRAP=1', ...argv], enforcement: 'full', denialSignatures: UNIX_SIGNATURES, runnerFailureSignatures: RUNNER_FAILURE })) + const result = await bash.run(bash.resolve({ command: 'printf "%s" "$DSH_WRAP"' })) + expect(result.stdout.text).toBe('1') + expect(result.sandbox).toEqual({ mode: 'read-only', denied: false, enforcement: 'full' }) + }) + + it('workspace-write rides the policy, workspaceRoot falling back to cwd when not configured', async () => { + const { bash, calls } = await setup({ mode: 'workspace-write', cwd: tmpdir() }) + const result = await bash.run(bash.resolve({ command: 'true' })) + expect(result.sandbox).toEqual({ mode: 'workspace-write', denied: false, enforcement: 'full' }) + expect(calls[0]?.policy).toEqual({ mode: 'workspace-write', workspaceRoot: resolve(tmpdir()) }) + }) + + it('an explicit workspaceRoot wins over cwd', async () => { + const { calls, bash } = await setup({ mode: 'workspace-write', workspaceRoot: '/ws', cwd: tmpdir() }) + await bash.run(bash.resolve({ command: 'true' })) + expect(calls[0]?.policy.workspaceRoot).toBe(resolve('/ws')) + }) + + it('the provider is consulted per wrap (no caching in the consumer): run and start each hand off', async () => { + const { bash, calls } = await setup() + await bash.run(bash.resolve({ command: 'true' })) + const task = bash.start(bash.resolve({ command: 'true' })) + await task.done + expect(calls).toHaveLength(2) + }) + + it('shellQuote survives embedded single quotes (the argv re-assembly primitive)', () => { + expect(shellQuote('a\'b')).toBe(String.raw`'a'\''b'`) + }) +}) + +describe('fail closed', () => { + it('propagates the provider\'s structured SANDBOX_UNAVAILABLE on run() and start()', async () => { + const { bash } = await setup({}, () => { throw new SandboxUnavailableError('read-only') }) + const spec = bash.resolve({ command: 'echo hi' }) + await expect(bash.run(spec)).rejects.toMatchObject({ name: 'SandboxUnavailableError', code: SANDBOX_UNAVAILABLE }) + expect(() => bash.start(spec)).toThrow(SandboxUnavailableError) + }) +}) + +describe('danger-full-access', () => { + it('runs unwrapped: the provider is never consulted, facts carry no enforcement', async () => { + const { bash, calls } = await setup({ mode: 'danger-full-access' }) + const result = await bash.run(bash.resolve({ command: 'echo free' })) + expect(result.stdout.text).toBe('free\n') + expect(result.sandbox).toEqual({ mode: 'danger-full-access', denied: false }) + expect(calls).toHaveLength(0) + }) + + it('start() passes through unwrapped and stamps nothing at settle', async () => { + const { bash, calls } = await setup({ mode: 'danger-full-access' }) + const task = bash.start(bash.resolve({ command: 'echo free-bg' })) + await task.done + expect(task.sandbox).toBeUndefined() + expect(bash.readOutput(task.id).delta).toContain('free-bg') + expect(calls).toHaveLength(0) + }) +}) + +describe('per-call sandboxMode override (the escalation mechanism)', () => { + it('exposes the configured default as the capability fact, and resolve() stamps it', async () => { + const { bash } = await setup() + expect(bash.sandboxMode).toBe('read-only') + expect(bash.resolve({ command: 'true' }).sandboxMode).toBe('read-only') + }) + + it('an explicit override outranks the default at resolve(), and the wrap policy follows it', async () => { + const { bash, calls } = await setup() + expect(bash.resolve({ command: 'true', sandboxMode: 'workspace-write' }).sandboxMode).toBe('workspace-write') + await bash.run(bash.resolve({ command: 'true', sandboxMode: 'workspace-write' })) + await bash.run(bash.resolve({ command: 'true' })) + expect(calls.map(call => call.policy.mode)).toEqual(['workspace-write', 'read-only']) + }) + + it('an escalated run reports the mode it ACTUALLY ran under', async () => { + const { bash } = await setup() + const result = await bash.run(bash.resolve({ command: 'true', sandboxMode: 'workspace-write' })) + expect(result.sandbox).toEqual({ mode: 'workspace-write', denied: false, enforcement: 'full' }) + }) + + it('escalating to danger-full-access bypasses the provider entirely — the grant, not a probe, is the authority there', async () => { + const { bash, calls } = await setup() + const result = await bash.run(bash.resolve({ command: 'echo free', sandboxMode: 'danger-full-access' })) + expect(result.stdout.text).toBe('free\n') + expect(result.sandbox).toEqual({ mode: 'danger-full-access', denied: false }) + expect(calls).toHaveLength(0) + }) + + it('overlapping background tasks settle with their OWN modes (an escalated task next to a default one)', async () => { + // With per-call policy, tasks under different modes are in flight at + // once — anything keyed off the configured default would misreport the + // escalated one at its settle stamp. + const { bash } = await setup() + const escalated = bash.start(bash.resolve({ command: 'sleep 0.3; echo "x: Permission denied" >&2; exit 1', sandboxMode: 'workspace-write' })) + const plain = bash.start(bash.resolve({ command: 'true' })) + await plain.done + await escalated.done + expect(escalated.sandbox).toEqual({ mode: 'workspace-write', denied: true, enforcement: 'full' }) + expect(plain.sandbox).toEqual({ mode: 'read-only', denied: false, enforcement: 'full' }) + }) + + it('an escalated danger-full-access background task carries no facts (nothing confined it)', async () => { + const { bash, calls } = await setup() + const task = bash.start(bash.resolve({ command: 'echo bg-free', sandboxMode: 'danger-full-access' })) + await task.done + expect(task.sandbox).toBeUndefined() + expect(bash.readOutput(task.id).delta).toContain('bg-free') + expect(calls).toHaveLength(0) + }) +}) + +describe('classifyDenial', () => { + it('never classifies a clean exit or a signal kill as a denial', () => { + expect(classifyDenial(runResult(0, 'Permission denied'), UNIX_SIGNATURES)).toBe(false) + expect(classifyDenial(runResult(null, 'Permission denied'), UNIX_SIGNATURES)).toBe(false) + }) + + it('classifies failed runs by the wrap\'s own dialect, conservatively', () => { + expect(classifyDenial(runResult(1, 'touch: cannot touch /x: Read-only file system'), UNIX_SIGNATURES)).toBe(true) + expect(classifyDenial(runResult(1, 'sh: /x: Permission denied'), UNIX_SIGNATURES)).toBe(true) + // Bare EPERM is not a Linux runner's dialect: mount/kill/ptrace fail with + // it unsandboxed too, and the mode vocabulary governs file effects only — + // claiming a file denial here would tell the model the sandbox blocked + // something it never governed. + expect(classifyDenial(runResult(1, 'mount: Operation not permitted'), UNIX_SIGNATURES)).toBe(false) + expect(classifyDenial(runResult(1, 'No such file or directory'), UNIX_SIGNATURES)).toBe(false) + }) + + it('matches exactly the active backend\'s dialect: EPERM classifies under Seatbelt, EACCES does not under bwrap', () => { + // The same stderr flips meaning with the backend: under Seatbelt, EPERM + // text IS how the kernel refuses a governed file write; under bwrap's + // EROFS-only dialect, `Permission denied` is ordinary DAC, not the + // sandbox — per-wrap signatures are what keep both classifications honest. + expect(classifyDenial(runResult(1, 'bash: /etc/x: Operation not permitted'), ['operation not permitted'])).toBe(true) + expect(classifyDenial(runResult(1, 'sh: /x: Permission denied'), ['read-only file system'])).toBe(false) + }) +}) + +describe('classifyRunnerFailure', () => { + it('matches the dialect case-insensitively on BOTH sides — the seam declares it so, and producers compose signatures from runtime data (an argv0 path, the shell\'s `No such file or directory`)', () => { + const signatures = ['exec: /Opt/Runners/bwrap: not found', '/Opt/Runners/bwrap: No such file or directory'] + expect(classifyRunnerFailure(runResult(127, 'bash: /Opt/Runners/bwrap: No such file or directory'), signatures)).toBe(true) + expect(classifyRunnerFailure(runResult(127, 'BASH: LINE 1: EXEC: /OPT/RUNNERS/BWRAP: NOT FOUND'), signatures)).toBe(true) + }) +}) + +describe('result facts', () => { + it('reports a real permission failure as a sandbox denial with the mode it ran under', async () => { + const { bash } = await setup() + const lockedDir = join(mkdtempSync(join(tmpdir(), 'dsh-sandbox-denied-')), 'locked') + mkdirSync(lockedDir) + chmodSync(lockedDir, 0o555) + const result = await bash.run(bash.resolve({ command: `echo x > ${lockedDir}/f` })) + expect(result.exitCode).not.toBe(0) + expect(result.sandbox).toEqual({ mode: 'read-only', denied: true, enforcement: 'full' }) + }) + + it('carries the provider\'s partial-enforcement fact through unchanged', async () => { + const { bash } = await setup({}, argv => ({ argv: [...argv], enforcement: 'partial', denialSignatures: UNIX_SIGNATURES, runnerFailureSignatures: RUNNER_FAILURE })) + const result = await bash.run(bash.resolve({ command: 'true' })) + expect(result.sandbox).toEqual({ mode: 'read-only', denied: false, enforcement: 'partial' }) + }) +}) + +describe('background sandbox facts', () => { + it('stamps a settled denial: nonzero exit + permission stderr under a confined mode', async () => { + const { bash } = await setup() + const task = bash.start(bash.resolve({ command: 'echo "x: Permission denied" >&2; exit 1' })) + await task.done + expect(task.sandbox).toEqual({ mode: 'read-only', denied: true, enforcement: 'full' }) + }) + + it('a foreground runner failure throws the fail-closed error, never a task result', async () => { + // The wrap's runner prefix on a failed run means the SANDBOX broke and + // the command never ran — the late twin of the confine-time throw, with + // the runner's own first stderr line carried as the cause. + const { bash } = await setup() + const run = bash.run(bash.resolve({ command: 'echo "fake-runner: ruleset rejected" >&2; exit 125' })) + await expect(run).rejects.toThrow(expect.objectContaining({ code: SANDBOX_UNAVAILABLE })) + await expect(run).rejects.toThrow('fake-runner: ruleset rejected') + }) + + it('a foreground runner failure outranks denial: runner error text may contain denial words', async () => { + const { bash } = await setup() + await expect(bash.run(bash.resolve({ command: 'echo "fake-runner: cannot open rule path: /x: Permission denied" >&2; exit 125' }))) + .rejects.toThrow(expect.objectContaining({ code: SANDBOX_UNAVAILABLE })) + }) + + it('a settled background runner failure stamps runnerFailed (no error channel remains), not denied', async () => { + const { bash } = await setup() + const task = bash.start(bash.resolve({ command: 'echo "fake-runner: cannot open rule path: /x: Permission denied" >&2; exit 125' })) + await task.done + expect(task.sandbox).toEqual({ mode: 'read-only', denied: false, enforcement: 'full', runnerFailed: true }) + }) + + it('completion listeners already see the stamped facts (stamp precedes notify)', async () => { + const { ctx, bash } = await setup({}, argv => ({ argv: [...argv], enforcement: 'partial', denialSignatures: UNIX_SIGNATURES, runnerFailureSignatures: RUNNER_FAILURE })) + const seen: unknown[] = [] + ctx.bash.onTaskDone((task) => { seen.push(task.sandbox) }) + const task = bash.start(bash.resolve({ command: 'echo "x: Permission denied" >&2; exit 1' })) + await task.done + expect(seen).toEqual([{ mode: 'read-only', denied: true, enforcement: 'partial' }]) + }) + + it('overlapping background tasks keep their OWN wrap facts (per-task, not latest-wrap)', async () => { + // The seam returns facts PER WRAP — a legal provider may vary them + // between calls. The slow task settles AFTER the quick one started, so a + // latest-wrap field would classify its denial against the quick task's + // dialect (missing it) and stamp the wrong enforcement. + const wraps: Array> = [ + { enforcement: 'partial', denialSignatures: ['permission denied'] }, + { enforcement: 'full', denialSignatures: ['read-only file system'] }, + ] + let call = 0 + const { bash } = await setup({}, (argv) => { + const wrap = wraps[Math.min(call++, wraps.length - 1)] as Pick + return { argv: [...argv], ...wrap, runnerFailureSignatures: RUNNER_FAILURE } + }) + const slow = bash.start(bash.resolve({ command: 'sleep 0.4; echo "x: Permission denied" >&2; exit 1' })) + const quick = bash.start(bash.resolve({ command: 'true' })) + await quick.done + await slow.done + expect(slow.sandbox).toEqual({ mode: 'read-only', denied: true, enforcement: 'partial' }) + expect(quick.sandbox).toEqual({ mode: 'read-only', denied: false, enforcement: 'full' }) + }) + + it('a signal-killed task is never a denial (null exit code)', async () => { + const { bash } = await setup() + const task = bash.start(bash.resolve({ command: 'echo "Permission denied" >&2; sleep 30' })) + // Let the stderr land before the kill so the classifier sees the + // signature and must still refuse it on the null exit code alone. + await vi.waitFor(() => { expect(bash.readOutput(task.id).delta).toContain('Permission denied') }) + bash.kill(task.id) + await task.done + expect(task.sandbox).toEqual({ mode: 'read-only', denied: false, enforcement: 'full' }) + }) + + it('disposal kills wrapped background tasks (inherited HMR safety)', async () => { + const { ctx, bash } = await setup() + const task = bash.start(bash.resolve({ command: 'sleep 30' })) + await ctx.fiber.dispose() + expect(task.status).toBe('killed') + }) +}) diff --git a/packages/bash/bash-sandbox/tests/seatbelt.e2e.ts b/packages/bash/bash-sandbox/tests/seatbelt.e2e.ts new file mode 100644 index 0000000000..8ae25a8d39 --- /dev/null +++ b/packages/bash/bash-sandbox/tests/seatbelt.e2e.ts @@ -0,0 +1,101 @@ +import { spawnSync } from 'node:child_process' +import { existsSync, readFileSync } from 'node:fs' +import { mkdtemp, rm } from 'node:fs/promises' +import { homedir } from 'node:os' +import { join } from 'node:path' +import { afterEach, describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import { LocalSandboxProvider, seatbeltProfileArgs } from '@deepseek-ai/dsh-sandbox-local' +import { SandboxBashExecutor } from '@deepseek-ai/dsh-bash-sandbox' + +/** + * KEYLESS consumer-integration proof on macOS: the REAL `LocalSandboxProvider` + * (Linux rungs forced off, so `sandbox-exec`/Seatbelt confines) underneath + * the REAL `SandboxBashExecutor`, driven through the executor's public + * run/start paths. Verifies the WORLD (files exist or don't) plus the + * stamped result facts — in particular that Seatbelt's EPERM denial text + * classifies as `denied: true` through the wrap-carried dialect; the + * backend-only confinement proofs live with `@deepseek-ai/dsh-sandbox-local`. + * + * Self-skips wherever the functional probe fails — every non-macOS host, or + * a macOS whose `sandbox-exec` refuses the profile. + */ + +const probe = spawnSync('sandbox-exec', [...seatbeltProfileArgs({ mode: 'read-only', workspaceRoot: '/' }), '--', 'true'], { timeout: 5_000, stdio: 'ignore' }) +const seatbeltUsable = probe.status === 0 + +let ctx: Context | undefined +const tempDirs: string[] = [] + +afterEach(async () => { + await ctx?.fiber.dispose() + ctx = undefined + await Promise.all(tempDirs.splice(0).map(dir => rm(dir, { recursive: true, force: true }))) +}) + +async function tempDir(base: string): Promise { + const dir = await mkdtemp(join(base, 'dsh-seatbelt-e2e-')) + tempDirs.push(dir) + return dir +} + +async function sandboxedBash(workspace: string, mode: 'read-only' | 'workspace-write'): Promise { + ctx = new Context() + await ctx.plugin(LocalSandboxProvider, {}) + ;(ctx.sandbox as LocalSandboxProvider).internals = { probeBwrap: () => false, probeLandlock: () => 'unusable' } + await ctx.plugin(SandboxBashExecutor, { mode, cwd: workspace, workspaceRoot: workspace, timeoutMs: 30_000 }) + return ctx.bash as SandboxBashExecutor +} + +describe.skipIf(!seatbeltUsable)('bash-sandbox: real Seatbelt confinement through ctx.bash', () => { + it('read-only denies a write — the file must NOT exist, and EPERM text classifies as a denial', async () => { + const workdir = await tempDir(homedir()) + const bash = await sandboxedBash(workdir, 'read-only') + const result = await bash.run(bash.resolve({ command: `echo hi > ${workdir}/denied.txt` })) + expect(result.exitCode).not.toBe(0) + expect(result.sandbox).toEqual({ mode: 'read-only', denied: true, enforcement: 'full' }) + expect(existsSync(join(workdir, 'denied.txt'))).toBe(false) + }) + + it('workspace-write lands a write inside the workspace root and still denies one beside it', async () => { + // HOME-based dirs on purpose: workspace-write grants /tmp and the + // per-user temp dir wholesale, so only paths outside both prove the + // workspace-root boundary. + const workdir = await tempDir(homedir()) + const outside = await tempDir(homedir()) + const bash = await sandboxedBash(workdir, 'workspace-write') + + const inside = await bash.run(bash.resolve({ command: `printf seatbelt-ok > ${workdir}/allowed.txt` })) + expect(inside.exitCode).toBe(0) + expect(inside.sandbox).toEqual({ mode: 'workspace-write', denied: false, enforcement: 'full' }) + expect(readFileSync(join(workdir, 'allowed.txt'), 'utf8')).toBe('seatbelt-ok') + + const denied = await bash.run(bash.resolve({ command: `echo hi > ${outside}/denied.txt` })) + expect(denied.exitCode).not.toBe(0) + expect(denied.sandbox).toEqual({ mode: 'workspace-write', denied: true, enforcement: 'full' }) + expect(existsSync(join(outside, 'denied.txt'))).toBe(false) + }) + + it('classifies a background denial once the task settles', async () => { + const workdir = await tempDir(homedir()) + const bash = await sandboxedBash(workdir, 'read-only') + const task = bash.start(bash.resolve({ command: `echo hi > ${workdir}/bg-denied.txt` })) + await task.done + expect(task.sandbox).toEqual({ mode: 'read-only', denied: true, enforcement: 'full' }) + expect(existsSync(join(workdir, 'bg-denied.txt'))).toBe(false) + }) + + it('an approved escalated retry — the spec-level workspace-write override — lands the exact write read-only denied', async () => { + const workdir = await tempDir(homedir()) + const bash = await sandboxedBash(workdir, 'read-only') + const command = `printf escalated > ${workdir}/escalated.txt` + const strict = await bash.run(bash.resolve({ command })) + expect(strict.exitCode).not.toBe(0) + expect(strict.sandbox).toEqual({ mode: 'read-only', denied: true, enforcement: 'full' }) + expect(existsSync(join(workdir, 'escalated.txt'))).toBe(false) + const retried = await bash.run(bash.resolve({ command, sandboxMode: 'workspace-write' })) + expect(retried.exitCode).toBe(0) + expect(retried.sandbox).toEqual({ mode: 'workspace-write', denied: false, enforcement: 'full' }) + expect(readFileSync(join(workdir, 'escalated.txt'), 'utf8')).toBe('escalated') + }) +}) diff --git a/packages/bash/bash-sandbox/tsconfig.json b/packages/bash/bash-sandbox/tsconfig.json new file mode 100644 index 0000000000..6dad98d54f --- /dev/null +++ b/packages/bash/bash-sandbox/tsconfig.json @@ -0,0 +1,36 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../../vendor/schemastery" + }, + { + "path": "../../util/brand" + }, + { + "path": "../../llm/llm" + }, + { + "path": "../../sandbox/sandbox" + }, + { + "path": "../../bash/bash" + }, + { + "path": "../../bash/bash-local" + } + ] +} diff --git a/packages/bash/bash/README.md b/packages/bash/bash/README.md index 39318ae371..e245148e93 100644 --- a/packages/bash/bash/README.md +++ b/packages/bash/bash/README.md @@ -2,15 +2,16 @@ The **bash executor seam**: an abstract `BashExecutor` service (`ctx.bash`) defining WHAT a bash backend does — run commands, manage background tasks — without saying HOW. -This package is one third of the bash capability, split so each concern can evolve (and be swapped) independently: +This package is the interface quarter of the bash capability, split so each concern can evolve (and be swapped) independently: | Package | Role | |---|---| | `@deepseek-ai/dsh-bash` (this) | the interface: abstract service + vocabulary types | | `@deepseek-ai/dsh-bash-local` | an implementation: local subprocesses | +| `@deepseek-ai/dsh-bash-sandbox` | an implementation: `dsh-bash-local`'s mechanics with every spawn confined via [`ctx.sandbox`](../../sandbox/sandbox/), denials reported as result facts | | `@deepseek-ai/dsh-tool-bash` | the model-facing tool schemas over `ctx.bash` | -The split mirrors the LLM seam (`LlmService`/`LlmAdapter`) and the agent-tool survey: pi hides execution behind a `BashOperations` interface (local shell / SSH / VM backends), Codex behind an exec-server protocol. A future sandboxed, containerized, or remote executor implements this interface and the tool schemas don't change. +The split mirrors the LLM seam (`LlmService`/`LlmAdapter`) and the agent-tool survey: pi hides execution behind a `BashOperations` interface (local shell / SSH / VM backends), Codex behind an exec-server protocol. `dsh-bash-sandbox` is exactly that swap in action — a sandboxing executor behind the same interface, tool schemas untouched; a containerized or remote executor slots in the same way. ## Service API (`ctx.bash`) @@ -19,6 +20,7 @@ The split mirrors the LLM seam (`LlmService`/`LlmAdapter`) and the agent-tool su | `run(spec)` | Foreground execution. Resolves when the command finishes. **Rejects only for infrastructure failures** (unusable workdir, missing shell, pre-aborted signal); nonzero exits, timeout kills, and abort kills resolve with a descriptive `BashRunResult`. | | `start(spec)` | Background execution. Returns a `BashTask` handle immediately; **no timeout applies** (stop tasks via `kill`). | | `get(id)` / `list()` | Task lookup. | +| `sandboxMode` | The capability fact for the tool layer: the default mode a SANDBOXING executor confines under (`undefined` in the base class — "this executor does not sandbox"). `dsh-tool-bash` reads it at registration to advertise the escalation fields only when the composition honors them. | | `ownerOf(id)` | The opaque OWNER token recorded for a background task at `start` (from the spec's `owner`), or `undefined` for an unknown id OR a known-but-ownerless task. The executor stores/returns it verbatim and NEVER interprets it — the access POLICY lives in the consumer (`dsh-tool-bash`), which compares `ownerOf(id)` to the caller's token. Storing ownership here (disposed with the executor's fiber) is what makes it survive a consumer HMR reload. | | `readOutput(id)` | **Incremental** output read — consecutive reads never re-deliver. Reads that lost data to buffer bounds flag `lossy` and point at full-stream spill files. Throws for unknown ids. | | `kill(id)` | Kill a running task. Returns `false` when it already finished; throws for unknown ids. | @@ -28,6 +30,8 @@ Implementations subclass `BashExecutor`, implement the abstract methods, and cal ## Vocabulary -`BashExecRequest` (command, workdir?, timeoutMs?, signal?, stdin?, env?, owner?) resolves to `BashExecSpec` (command, workdir, timeoutMs, signal?, stdin?, env?, owner) before execution; `owner` is optional on the request and **required-but-nullable** (`OwnerToken | undefined`) on the resolved spec, so a forgotten owner is a visible `undefined` rather than a silently-absent property. The task id (`BashTaskId`) and the `owner` token (`OwnerToken`) are [branded](../../util/brand) — `OwnerToken` is a DISTINCT brand from `SessionId` (the seam never imports `dsh-session`; the `dsh-tool-bash` consumer is the single boundary that casts its `SessionId` into one). `run()` returns `BashRunResult` (exitCode, signal, timedOut, aborted, timeoutMs, stdout/stderr as `CollectedOutput`) and `start()`/`readOutput()` use `BashTask`/`BashTaskRead` for the background side. See `src/types.ts` for the full contracts. +`BashExecRequest` (command, workdir?, timeoutMs?, signal?, stdin?, env?, owner?, sandboxMode?) resolves to `BashExecSpec` (command, workdir, timeoutMs, signal?, stdin?, env?, owner, sandboxMode) before execution; `owner` and `sandboxMode` are optional on the request and **required-but-nullable** on the resolved spec, so a forgotten one is a visible `undefined` rather than a silently-absent property. `sandboxMode` is the explicit per-call sandbox-policy input (the staged escalation and per-session overrides of [the sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md) ride it); a sandboxing executor's `resolve()` stamps its configured default when the request carries none, and a non-sandboxing executor carries the field verbatim and confines nothing. + +The task id (`BashTaskId`) and the `owner` token (`OwnerToken`) are [branded](../../util/brand) — `OwnerToken` is a DISTINCT brand from `SessionId` (the seam never imports `dsh-session`; the `dsh-tool-bash` consumer is the single boundary that casts its `SessionId` into one). `run()` returns `BashRunResult` (exitCode, signal, timedOut, aborted, timeoutMs, stdout/stderr as `CollectedOutput`) and `start()`/`readOutput()` use `BashTask`/`BashTaskRead` for the background side. A sandboxing executor additionally stamps `sandbox` result facts on results and settled tasks (`BashSandboxInfo`: the mode it executed under, the conservative `denied` classification, and — for confined modes — the backend's `enforcement` completeness); the mode/enforcement vocabulary is owned by the [`dsh-sandbox`](../../sandbox/sandbox/) seam, and the facts are documented in [core-data-structures/bash.md](../../../docs/core-data-structures/bash.md). See `src/types.ts` for the full contracts. `stdin` and `env` are set by in-process plugins (the hooks bridges, native plugins) to feed a hook command its JSON payload on stdin and its `CLAUDE_PROJECT_DIR`/`CLAUDE_PLUGIN_ROOT` env. The model-facing `dsh-tool-bash` tool does not expose them as parameters — a model already has equivalent power through shell syntax (`FOO=bar cmd`, a heredoc), so they would be redundant tool params. This is not a security boundary: the implementation's credential scrub (not these fields) is what keeps the harness's ambient secrets out of a spawned command. They are plain optionals on the resolved spec (unlike `owner`'s required-but-nullable): a missing one means "none", the safe default. See [the bash-stdin-env RFC](../../../docs/rfc/implemented/architecture/2026-06-30-bash-stdin-env-trusted-plugin-surface.md). diff --git a/packages/bash/bash/package.json b/packages/bash/bash/package.json index f1bc43c2b4..bfa71d73e3 100644 --- a/packages/bash/bash/package.json +++ b/packages/bash/bash/package.json @@ -23,10 +23,14 @@ "license": "BSD-3-Clause", "peerDependencies": { "@deepseek-ai/dsh-brand": "^0.0.1", + "@deepseek-ai/dsh-sandbox": "^0.0.1", + "@deepseek-ai/dsh-session": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "devDependencies": { "@deepseek-ai/dsh-brand": "workspace:^", + "@deepseek-ai/dsh-sandbox": "workspace:^", + "@deepseek-ai/dsh-session": "workspace:^", "cordis": "^4.0.0-rc.6" } } diff --git a/packages/bash/bash/src/index.ts b/packages/bash/bash/src/index.ts index b629f10e4d..396249d3d7 100644 --- a/packages/bash/bash/src/index.ts +++ b/packages/bash/bash/src/index.ts @@ -15,6 +15,7 @@ */ import { Context, Service } from 'cordis' +import type { SandboxMode } from '@deepseek-ai/dsh-sandbox' import type { BashExecRequest, BashExecSpec, BashRunResult, BashTask, BashTaskId, BashTaskListener, BashTaskRead, OwnerToken } from './types.ts' export { BashTaskId, OwnerToken } from './types.ts' @@ -22,6 +23,7 @@ export type { BashExecRequest, BashExecSpec, BashRunResult, + BashSandboxInfo, BashTask, BashTaskListener, BashTaskRead, @@ -70,6 +72,21 @@ export abstract class BashExecutor extends Service { }, 'bash listener teardown') } + /** + * The sandbox mode this executor confines commands under BY DEFAULT, or + * `undefined` when it does not sandbox at all — the capability fact the + * tool layer reads to advertise escalation honestly (a mode-widening lever + * is only offered when a sandboxing executor is mounted to honor it, and + * only for modes strictly wider than this one). Composition truth, not + * configuration: the base class reports `undefined`; a sandboxing + * implementation overrides the getter with its configured mode. + * @returns the configured default mode of a sandboxing executor; + * `undefined` for an executor that never confines. + */ + get sandboxMode(): SandboxMode | undefined { + return undefined + } + /** * Resolve a caller's {@link BashExecRequest} into a fully-specified * {@link BashExecSpec}, applying this implementation's config defaults and diff --git a/packages/bash/bash/src/types.ts b/packages/bash/bash/src/types.ts index 4715ace318..39dbc162c6 100644 --- a/packages/bash/bash/src/types.ts +++ b/packages/bash/bash/src/types.ts @@ -7,6 +7,7 @@ */ import type { Branded } from '@deepseek-ai/dsh-brand' +import type { SandboxEnforcement, SandboxMode } from '@deepseek-ai/dsh-sandbox' /** Identifies one background task within an executor (generated `bash-N`). */ export type BashTaskId = Branded<'BashTaskId'> @@ -40,6 +41,48 @@ export function OwnerToken(id: string): OwnerToken { return id as OwnerToken } +/** + * Sandbox facts for one foreground run — present on {@link BashRunResult} iff + * a sandboxing executor ran the command (an unsandboxed executor reports no + * `sandbox` field at all). Reported independently of `exitCode`/`signal` + * (orthogonal outcomes), so a caller can tell "the command failed on its own" + * from "the sandbox blocked a file operation". The mode/enforcement + * vocabulary lives on the `@deepseek-ai/dsh-sandbox` seam; this shape is the + * bash seam's result-fact carrier for it. + */ +export interface BashSandboxInfo { + /** The mode the command actually ran under. */ + mode: SandboxMode + /** + * True when the executor classifies this run's failure as the sandbox + * denying a file operation. The classification is CONSERVATIVE (a failed + * exit whose stderr carries a filesystem-permission signature) and reads + * the COLLECTED stderr — the bounded in-memory tail per + * {@link CollectedOutput} semantics, so a signature that survives only in a + * spill file is missed toward `denied: false`. A plain command failure + * keeps `denied: false` even under a sandboxed mode. + */ + denied: boolean + /** + * How completely the runner enforced `mode`'s file effects — see + * {@link SandboxEnforcement}. Absent exactly when `mode` is + * `danger-full-access`: nothing is confined, so there is no enforcement to + * report. + */ + enforcement?: SandboxEnforcement + /** + * True when the executor classifies this failure as the SANDBOX RUNNER + * itself failing (missing binary, refused profile, fail-closed refusal + * before exec) — the command NEVER RAN; this is a sandbox failure, not a + * task failure, and it outranks `denied` (a runner's own error text can + * contain denial words). Only ever stamped on settled BACKGROUND tasks: a + * foreground run surfaces the same condition as the thrown + * `SANDBOX_UNAVAILABLE` error instead (the foreground path has an error + * channel; a settled task's facts are its only channel). + */ + runnerFailed?: boolean +} + /** * A caller's execution REQUEST: `workdir` and `timeoutMs` are optional and * filled by {@link BashExecutor.resolve} from the implementation's config. @@ -81,6 +124,20 @@ export interface BashExecRequest { * ownerless background start (a non-agent caller). */ owner?: OwnerToken | undefined + /** + * Explicit per-call sandbox-policy input, overriding the executor's + * configured default mode for THIS call. Never a silent default: a + * consumer sets it only from an explicit policy source — an + * `'allowed-once'` grant a human just issued through `ctx.approval` (the + * escalation flow in the sandbox RFC § Escalation, which outranks), or the + * session's standing override folded from its own `bash/sandbox-mode` + * events (the sandbox RFC § Per-session mode switching — the user's recorded per-session + * choice). A sandboxing executor confines THIS call under the given mode; + * a non-sandboxing executor carries the field and confines nothing (the + * tool layer stamps neither escalation nor overrides without a sandboxing + * executor — see {@link BashExecutor.sandboxMode}). + */ + sandboxMode?: SandboxMode | undefined } /** @@ -122,6 +179,16 @@ export interface BashExecSpec { * task. `start()` stores it; `run()` (foreground) ignores it. */ owner: OwnerToken | undefined + /** + * The sandbox mode this call executes under, REQUIRED-but-nullable for the + * same visibility reason as `owner`. A sandboxing executor's `resolve()` + * stamps the effective mode (the request's explicit override, else its + * configured default) so `run()`/`start()` read the spec, never the config; + * a non-sandboxing executor carries the request value through verbatim and + * ignores it (`undefined` under such an executor means what its README says: + * unconfined execution). + */ + sandboxMode: SandboxMode | undefined } /** One captured stream: the (possibly truncated) text plus recovery info. */ @@ -148,6 +215,12 @@ export interface BashRunResult { timeoutMs: number stdout: CollectedOutput stderr: CollectedOutput + /** + * Sandbox facts, present iff a sandboxing executor ran the command — an + * unsandboxed executor (e.g. `dsh-bash-local`) never sets it. See + * {@link BashSandboxInfo} for the `denied` classification semantics. + */ + sandbox?: BashSandboxInfo } /** Lifecycle of a background task. */ @@ -164,6 +237,16 @@ export interface BashTask { signal: NodeJS.Signals | null /** Resolves when the underlying process closes (never rejects). */ readonly done: Promise + /** + * Sandbox facts for this task's execution, stamped by a sandboxing executor + * once the task settles and BEFORE completion listeners are notified — an + * `onTaskDone` consumer and a `done` awaiter both see it. Denial + * classification runs against the settled task's collected stderr, so the + * field cannot exist earlier: absent while the task is running and under an + * executor that does not sandbox. See {@link BashSandboxInfo} for the + * `denied` semantics. + */ + sandbox?: BashSandboxInfo } /** One incremental {@link BashExecutor.readOutput} read. */ diff --git a/packages/bash/bash/tests/service.spec.ts b/packages/bash/bash/tests/service.spec.ts index 81530843ed..94d299f175 100644 --- a/packages/bash/bash/tests/service.spec.ts +++ b/packages/bash/bash/tests/service.spec.ts @@ -15,6 +15,7 @@ class StubExecutor extends BashExecutor { timeoutMs: request.timeoutMs ?? 1000, ...request.signal ? { signal: request.signal } : {}, owner: request.owner, + sandboxMode: request.sandboxMode, } } @@ -96,6 +97,11 @@ describe('BashExecutor service seam', () => { expect(result.exitCode).toBe(0) }) + it('reports no default sandbox mode (composition truth: the base never confines)', async () => { + const { bash } = await setup() + expect(bash.sandboxMode).toBeUndefined() + }) + it('onTaskDone delivers completions to registered listeners', async () => { const { bash } = await setup() const seen: string[] = [] diff --git a/packages/bash/bash/tsconfig.json b/packages/bash/bash/tsconfig.json index 342f636170..13d297a292 100644 --- a/packages/bash/bash/tsconfig.json +++ b/packages/bash/bash/tsconfig.json @@ -16,6 +16,12 @@ }, { "path": "../../util/brand" + }, + { + "path": "../../sandbox/sandbox" + }, + { + "path": "../../core/session" } ] } diff --git a/packages/bash/tool-bash/README.md b/packages/bash/tool-bash/README.md index eabb9298aa..b5f6680717 100644 --- a/packages/bash/tool-bash/README.md +++ b/packages/bash/tool-bash/README.md @@ -4,7 +4,7 @@ The model-facing bash tools — `bash`, `bash_output`, `bash_kill` — registere Requires a loaded executor implementation (e.g. `@deepseek-ai/dsh-bash-local`); the plugin stays pending until `ctx.bash` exists (`inject: ['tools', 'bash', 'systemPrompt']`). -The plugin also contributes the `tool:bash` prompt section (order 105) — the cross-call habit the per-tool descriptions cannot carry: check the `[exit code: N]` marker on every result and investigate failures before moving on. +The plugin also contributes the `tool:bash` prompt section (order 105) — the cross-call habit the per-tool descriptions cannot carry: check the `[exit code: N]` marker on every result and investigate failures before moving on. Under a sandboxing executor it additionally contributes the per-agent `env:bash-sandbox` section (order 110) stating each session's EFFECTIVE mode, and the pre-step narrator — see [Per-session mode](#per-session-mode-switching-and-visibility). ## Tools @@ -17,14 +17,16 @@ The plugin also contributes the `tool:bash` prompt section (order 105) — the c | `timeoutMs` | number | Timeout override in milliseconds. The executor applies its configured default and cap. | | `workdir` | string | Working directory for this call. Defaults to the calling agent's session cwd (`session.header.cwd`) so each session runs in its own workspace; a relative `workdir` is resolved against that session cwd. | | `run_in_background` | boolean | Return a task id immediately; no timeout applies. | +| `sandbox_permissions` | string enum | ADVERTISED ONLY when the mounted executor sandboxes (`ctx.bash.sandboxMode` reports a confining default): the strictly wider mode a denied command needs (`read-only` offers `workspace-write`/`danger-full-access`; `workspace-write` offers `danger-full-access`; nothing above `danger-full-access`, so the fields vanish). | +| `justification` | string | Required together with `sandbox_permissions` (each without the other is a validation error): one sentence for the user explaining why this exact command needs the wider access. | `command`, `workdir`, and `timeoutMs` are resolved against the executor's config defaults via `ctx.bash.resolve()` before execution, so the executor seam (`BashExecSpec`) receives explicit `workdir`/`timeoutMs` values. The workdir default is applied in the tool layer (from the calling agent's `session.header.cwd`) BEFORE `resolve()` — the per-session cwd must come from `exec.agent`, since N sessions share one executor; only when no session cwd is available does the executor fall back to its own config / `process.cwd()`. -Result text: stdout, then a `[stderr]` section, then status markers — `[timed out after Nms]` whenever the executor's timer fired (reported independently of how the process ended, so a command that traps SIGTERM and exits 0 still shows it), `[killed by signal: …]` for a signal death, `[exit code: N]` for a non-zero exit (reported, **not** `isError`: the model decides how to react), and `[output truncated; full output: ]` when the tail was kept and a safe spill file is available. If the executor knows output was dropped but cannot safely advertise a complete spill file, the path is reported as `(unavailable)`. Only infrastructure failures (spawn errors, aborts) surface as `isError` results. +Result text: stdout, then a `[stderr]` section, then status markers — `[sandbox: file access denied under mode]` when a sandboxing executor classified the failure as a policy denial (reported first so `[exit code: N]` stays the last line; the static description tells the model a denial is policy, not a command bug, and forbids retrying around it), `[timed out after Nms]` whenever the executor's timer fired (reported independently of how the process ended, so a command that traps SIGTERM and exits 0 still shows it), `[killed by signal: …]` for a signal death, `[exit code: N]` for a non-zero exit (reported, **not** `isError`: the model decides how to react), and `[output truncated; full output: ]` when the tail was kept and a safe spill file is available. If the executor knows output was dropped but cannot safely advertise a complete spill file, the path is reported as `(unavailable)`. Only infrastructure failures (spawn errors, aborts) surface as `isError` results. ### `bash_output` -`task_id` → output produced **since the previous `bash_output` call** plus a status line (`running` / `completed, exit code: N` / `killed`). Reads that lost data to buffer bounds say so and point at the full-output spill file when one is safely available, otherwise `(unavailable)`. +`task_id` → output produced **since the previous `bash_output` call** plus a status line (`running` / `completed, exit code: N` / `killed`). A settled task classified as a sandbox denial carries the same `[sandbox: file access denied under mode]` marker on every read that sees it (denials are only classifiable once the whole stderr has been collected). Reads that lost data to buffer bounds say so and point at the full-output spill file when one is safely available, otherwise `(unavailable)`. ### `bash_kill` @@ -46,6 +48,9 @@ When a background task finishes, a short notice is injected into the owning agen The `BashExecRequest` seam carries optional `stdin` and `env`, used by the hooks bridges to feed a hook command its JSON payload and `CLAUDE_*` env. This tool does **not** expose them as parameters: its request is built from `command`/`workdir`/`timeoutMs`/`signal`/`owner` only, so a model that includes `env` or `stdin` keys in its tool arguments has them ignored. This is not a trust boundary — a model already has equivalent power through shell syntax (`FOO=bar cmd`, a heredoc), and the real defense against leaking the harness's ambient secrets is `dsh-bash-local`'s credential scrub, which works regardless. A regression guard drives the real tool with those extra args and asserts the resulting request carries neither field — its job is to catch a future refactor that blindly spreads `...args` into the request (which would silently forward model input into the post-scrub `env` merge), not to defend a wall. See [the bash-stdin-env RFC](../../../docs/rfc/implemented/architecture/2026-06-30-bash-stdin-env-trusted-plugin-surface.md). -## Permissions +## Permissions and escalation + +Commands run with the executor's full authority unless a sandboxing executor ([`dsh-bash-sandbox`](../bash-sandbox/)) confines them — the deny-only sandbox reports denials as result facts, rendered here as the denial marker; per-call allow/deny/ask policy is the `tools/pre-execute` waterfall (see docs/architecture.md). + +The escalation gate — one approved wider retry of a denied command through `ctx.approval` — is the sandbox RFC's staged follow-up ([§ Escalation](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)); this layer today renders the denial facts and forbids retrying around them. -`TODO(permissions)`: commands run with the executor's full authority. The permission/sandbox seam is the `tools/pre-execute` waterfall (deny or ask) plus sandboxing `BashExecutor` implementations — see docs/architecture.md. `@cordisjs/plugin-capability` (a named-permission service with a session `test()`) is a candidate building block for that work. diff --git a/packages/bash/tool-bash/package.json b/packages/bash/tool-bash/package.json index d8836d6a21..b08ccd7b74 100644 --- a/packages/bash/tool-bash/package.json +++ b/packages/bash/tool-bash/package.json @@ -25,6 +25,7 @@ "@deepseek-ai/dsh-agent": "^0.0.1", "@deepseek-ai/dsh-bash": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-sandbox": "^0.0.1", "@deepseek-ai/dsh-system-prompt": "^0.0.1", "@deepseek-ai/dsh-tools": "^0.0.1", "cordis": "^4.0.0-rc.6" @@ -34,8 +35,10 @@ "@deepseek-ai/dsh-agent-loop": "workspace:^", "@deepseek-ai/dsh-bash": "workspace:^", "@deepseek-ai/dsh-bash-local": "workspace:^", + "@deepseek-ai/dsh-bash-sandbox": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", - "@deepseek-ai/dsh-session": "workspace:^", + "@deepseek-ai/dsh-sandbox": "workspace:^", + "@deepseek-ai/dsh-sandbox-local": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", "cordis": "^4.0.0-rc.6" diff --git a/packages/bash/tool-bash/src/index.ts b/packages/bash/tool-bash/src/index.ts index d4a3105165..9544858c9e 100644 --- a/packages/bash/tool-bash/src/index.ts +++ b/packages/bash/tool-bash/src/index.ts @@ -30,10 +30,15 @@ * completion landing during the reload gap still drops its one notice — the * pre-existing reload-gap drop — but the ownership fence itself is HMR-proof.) * - * TODO(permissions): commands run with the executor's full authority. The - * permission/sandbox seam is the `tools/pre-execute` waterfall (deny/ask) plus - * sandboxing `BashExecutor` implementations — see docs/architecture.md - * § Extending The Harness. + * Commands run with the executor's full authority unless a sandboxing + * executor (`@deepseek-ai/dsh-bash-sandbox`) confines them; per-call + * allow/deny/ask policy is the `tools/pre-execute` waterfall — see + * docs/architecture.md § Extension And Composition. A sandbox denial is a + * RESULT FACT this layer renders as its own marker (the command RAN and the + * kernel refused a file effect), and a sandbox RUNNER failure renders as a + * sandbox problem, never a command failure. The escalation surface and the + * per-session mode switching are staged follow-ups of the sandbox RFC + * (docs/rfc/proposed/feature/2026-07-06-sandbox.md). * * @module @deepseek-ai/dsh-tool-bash */ @@ -115,6 +120,12 @@ export function renderResult(result: BashRunResult): string { if (body.length === 0) body = '(no output)' const markers: string[] = [] + // The sandbox marker precedes the exit-status markers so `[exit code: N]` + // stays the LAST line (exitStatus() anchors its parse there). Denial is a + // reported fact like timeout: the model decides how to react. + if (result.sandbox?.denied) { + markers.push(`[sandbox: file access denied under ${result.sandbox.mode} mode]`) + } // Timeout is reported independently of how the process actually ended: a // command can trap SIGTERM and exit 0 after our timer fired (e.g. // `trap "exit 0" TERM; sleep 60`), giving timedOut:true / exitCode:0 / @@ -360,6 +371,7 @@ export function apply(ctx: Context): void { description: 'Execute a bash command (`bash -c`) and return its stdout/stderr. ' + 'Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — ' + 'pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. ' + + 'Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under mode]` — a policy denial, not a bug in the command; do not retry another way (a background task reports the same marker via bash_output once it has finished). ' + 'Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. ' + 'Set `run_in_background: true` for long-running commands: the call returns a task id immediately; ' + 'poll it with `bash_output` and stop it with `bash_kill`.', @@ -428,6 +440,17 @@ export function apply(ctx: Context): void { text += `\n[some output was dropped from memory; full output: ${fullOutput}]` } text += `\n${statusLine(read.task)}` + if (read.task.sandbox?.runnerFailed) { + // The sandbox RUNNER itself failed — the command never ran. The + // foreground path surfaces this as the structured SANDBOX_UNAVAILABLE + // error; a settled task's read carries the marker instead. + text += `\n[sandbox: the sandbox runner itself failed under ${read.task.sandbox.mode} mode — the command did not run; this is a sandbox problem, not a command failure]` + } else if (read.task.sandbox?.denied) { + // Mirrors the foreground result marker. Background denials are only + // classifiable once the task settles (the classifier needs the whole + // stderr), so the marker rides every read that sees the settled task. + text += `\n[sandbox: file access denied under ${read.task.sandbox.mode} mode]` + } return Promise.resolve([{ type: 'text', text }]) }, presentCall: args => presentTaskCall('Read output from', args), diff --git a/packages/bash/tool-bash/tests/tools.spec.ts b/packages/bash/tool-bash/tests/tools.spec.ts index 7d4b34f74f..2af987e941 100644 --- a/packages/bash/tool-bash/tests/tools.spec.ts +++ b/packages/bash/tool-bash/tests/tools.spec.ts @@ -1,4 +1,4 @@ -import { mkdtempSync } from 'node:fs' +import { chmodSync, mkdirSync, mkdtempSync } from 'node:fs' import { tmpdir } from 'node:os' import { join } from 'node:path' import { describe, expect, it, vi } from 'vitest' @@ -11,11 +11,20 @@ import ToolRegistry from '@deepseek-ai/dsh-tools' import AgentRegistry from '@deepseek-ai/dsh-agent' import type { Agent } from '@deepseek-ai/dsh-agent' import { LocalBashExecutor } from '@deepseek-ai/dsh-bash-local' +import { SandboxBashExecutor } from '@deepseek-ai/dsh-bash-sandbox' +import { SandboxProvider } from '@deepseek-ai/dsh-sandbox' +import type { ConfinedArgv } from '@deepseek-ai/dsh-sandbox' +import { LocalSandboxProvider } from '@deepseek-ai/dsh-sandbox-local' import * as ToolBash from '@deepseek-ai/dsh-tool-bash' import { renderResult } from '@deepseek-ai/dsh-tool-bash' const spillDir = mkdtempSync(join(tmpdir(), 'dsh-tool-bash-spec-')) +// Pure-config passthrough runner (same knob the snapshot tier uses): skips the +// profile args up to `--` and execs the command unconfined — deterministic +// without a host bwrap. +const PASSTHROUGH_RUNNER = ['bash', '-c', 'while [ "$1" != "--" ]; do shift; done; shift; exec "$@"', 'passthrough-runner'] + async function setup() { const ctx = new Context() await ctx.plugin(SystemPrompt) @@ -100,6 +109,7 @@ class LossyReadBashExecutor extends BashExecutor { timeoutMs: request.timeoutMs ?? 0, ...request.signal ? { signal: request.signal } : {}, owner: request.owner, + sandboxMode: request.sandboxMode, } } @@ -894,6 +904,7 @@ describe('the model-facing bash tool builds its request from named args only (no ...request.stdin !== undefined ? { stdin: request.stdin } : {}, ...request.env !== undefined ? { env: request.env } : {}, owner: request.owner, + sandboxMode: request.sandboxMode, } } run(): Promise { @@ -970,3 +981,89 @@ describe('the model-facing bash tool builds its request from named args only (no expect('owner' in request).toBe(true) }) }) + +describe('sandbox rendering', () => { + const sandboxResult = (denied: boolean, exitCode: number): BashRunResult => ({ + exitCode, + signal: null, + timedOut: false, + aborted: false, + timeoutMs: 1000, + stdout: { text: '', truncated: false }, + stderr: { text: denied ? 'bash: /x: Read-only file system' : 'boom', truncated: false }, + sandbox: { mode: 'read-only', denied }, + }) + + it('renders a denial marker BEFORE the exit-code marker (the $-anchored parse survives)', () => { + const text = renderResult(sandboxResult(true, 1)) + expect(text).toMatch(/\[sandbox: file access denied under read-only mode\]\n\[exit code: 1\]$/) + }) + + it('renders no sandbox marker for a plain failure under a sandboxed mode', () => { + expect(renderResult(sandboxResult(false, 2))).not.toContain('[sandbox:') + }) + + it('bash_output reports a settled background denial with the same marker', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(LocalSandboxProvider, { runnerCommand: PASSTHROUGH_RUNNER }) + await ctx.plugin(SandboxBashExecutor, { graceMs: 200 }) + const bash = ctx.bash as SandboxBashExecutor + bash.internals = { spillDir } + await ctx.plugin(ToolBash) + const started = await call(ctx, 'bash', { command: 'echo "x: Permission denied" >&2; exit 1', description: 'test command', run_in_background: true }) + const id = text(started).match(/started background task (bash-\d+)/)![1] + await bash.list().find(task => task.id === id)!.done + const read = await call(ctx, 'bash_output', { task_id: id }) + expect(text(read)).toMatch(/\[status: completed, exit code: 1\]\n\[sandbox: file access denied under read-only mode\]$/) + }) + + it('bash_output reports a settled background RUNNER failure as a sandbox problem, outranking the denial marker', async () => { + // A provider whose wrap carries a runner-failure signature: the settled + // task's stderr matching it means the sandbox itself broke and the + // command never ran — even though the same stderr also carries denial + // words (a runner's error text may contain them). + class FakeProvider extends SandboxProvider { + confine(argv: readonly string[]): ConfinedArgv { + return { argv: [...argv], enforcement: 'full', denialSignatures: ['permission denied'], runnerFailureSignatures: ['fake-runner: '] } + } + } + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(FakeProvider) + await ctx.plugin(SandboxBashExecutor, { graceMs: 200 }) + const bash = ctx.bash as SandboxBashExecutor + bash.internals = { spillDir } + await ctx.plugin(ToolBash) + const started = await call(ctx, 'bash', { command: 'echo "fake-runner: cannot open rule path: /x: Permission denied" >&2; exit 125', description: 'test command', run_in_background: true }) + const id = text(started).match(/started background task (bash-\d+)/)![1] + await bash.list().find(task => task.id === id)!.done + const read = await call(ctx, 'bash_output', { task_id: id }) + expect(text(read)).toMatch(/\[sandbox: the sandbox runner itself failed under read-only mode — the command did not run; /) + expect(text(read)).toMatch(/this is a sandbox problem, not a command failure\]$/) + expect(text(read)).not.toContain('file access denied') + }) + + it('reports a real denial end-to-end through the shipping sandbox executor', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(LocalSandboxProvider, { runnerCommand: PASSTHROUGH_RUNNER }) + await ctx.plugin(SandboxBashExecutor, { graceMs: 200 }) + const bash = ctx.bash as SandboxBashExecutor + bash.internals = { spillDir } + await ctx.plugin(ToolBash) + const lockedDir = join(mkdtempSync(join(tmpdir(), 'dsh-tool-bash-denied-')), 'locked') + mkdirSync(lockedDir) + chmodSync(lockedDir, 0o555) + const result = await call(ctx, 'bash', { command: `echo x > ${lockedDir}/f`, description: 'Write into a locked directory' }) + expect(result.isError).toBe(false) + expect(text(result)).toMatch(/\[sandbox: file access denied under read-only mode\]\n\[exit code: \d+\]$/) + }) +}) + diff --git a/packages/bash/tool-bash/tsconfig.json b/packages/bash/tool-bash/tsconfig.json index 89b10bfea8..6f70e81873 100644 --- a/packages/bash/tool-bash/tsconfig.json +++ b/packages/bash/tool-bash/tsconfig.json @@ -25,6 +25,15 @@ }, { "path": "../../bash/bash" + }, + { + "path": "../../core/system-prompt" + }, + { + "path": "../../approval/approval" + }, + { + "path": "../../sandbox/sandbox" } ] } diff --git a/packages/hooks/hook-protocol/tests/runner.spec.ts b/packages/hooks/hook-protocol/tests/runner.spec.ts index 1972a39c99..6f52198a93 100644 --- a/packages/hooks/hook-protocol/tests/runner.spec.ts +++ b/packages/hooks/hook-protocol/tests/runner.spec.ts @@ -26,6 +26,7 @@ function recordingBash(run: (spec: BashExecSpec) => Promise): { ...request.stdin !== undefined ? { stdin: request.stdin } : {}, ...request.env !== undefined ? { env: request.env } : {}, owner: request.owner, + sandboxMode: request.sandboxMode, } }, async run(spec: BashExecSpec): Promise { diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 27302831d6..1afe78f76e 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -98,6 +98,12 @@ importers: '@deepseek-ai/dsh-brand': specifier: workspace:^ version: link:../../util/brand + '@deepseek-ai/dsh-sandbox': + specifier: workspace:^ + version: link:../../sandbox/sandbox + '@deepseek-ai/dsh-session': + specifier: workspace:^ + version: link:../../core/session cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -118,6 +124,31 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/bash/bash-sandbox: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-bash': + specifier: workspace:^ + version: link:../bash + '@deepseek-ai/dsh-bash-local': + specifier: workspace:^ + version: link:../bash-local + '@deepseek-ai/dsh-sandbox': + specifier: workspace:^ + version: link:../../sandbox/sandbox + '@deepseek-ai/dsh-sandbox-local': + specifier: workspace:^ + version: link:../../sandbox/sandbox-local + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + node-addon-landlock-run: + specifier: 0.0.0-test.0 + version: 0.0.0-test.0 + packages/bash/tool-bash: devDependencies: '@deepseek-ai/dsh-agent': @@ -132,12 +163,18 @@ importers: '@deepseek-ai/dsh-bash-local': specifier: workspace:^ version: link:../bash-local + '@deepseek-ai/dsh-bash-sandbox': + specifier: workspace:^ + version: link:../bash-sandbox '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm - '@deepseek-ai/dsh-session': + '@deepseek-ai/dsh-sandbox': specifier: workspace:^ - version: link:../../core/session + version: link:../../sandbox/sandbox + '@deepseek-ai/dsh-sandbox-local': + specifier: workspace:^ + version: link:../../sandbox/sandbox-local '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../../core/system-prompt diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index dd6c6fb67d..ae52bdb307 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -156,9 +156,9 @@ const SERVICE_ROLES: ServiceRole[] = [ pkg: 'bash', title: 'Bash executor seam', mode: 'seam', - implementations: ['bash-local'], + implementations: ['bash-local', 'bash-sandbox'], consumers: ['tool-bash', 'hooks-claude', 'hooks-codex'], - note: 'The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors can replace bash-local.', + note: 'The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors replace bash-local without touching them.', }, { key: 'sandbox', @@ -166,7 +166,7 @@ const SERVICE_ROLES: ServiceRole[] = [ title: 'Process-sandbox seam', mode: 'seam', implementations: ['sandbox-local'], - consumers: [], + consumers: ['bash-sandbox'], note: 'Consumers hand over the exact argv they are about to spawn; same-world backends wrap it under a per-call policy and report enforcement.', }, { diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index 881ce06578..d1481c24ba 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -59,6 +59,8 @@ { "doc": "docs/core-data-structures/bash.md", "symbol": "BashExecRequest", "source": "packages/bash/bash/src/types.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "BashExecSpec", "source": "packages/bash/bash/src/types.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "BashRunResult", "source": "packages/bash/bash/src/types.ts" }, + { "doc": "docs/core-data-structures/bash.md", "symbol": "SandboxMode", "source": "packages/sandbox/sandbox/src/index.ts" }, + { "doc": "docs/core-data-structures/bash.md", "symbol": "BashSandboxInfo", "source": "packages/bash/bash/src/types.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "CollectedOutput", "source": "packages/bash/bash/src/types.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "BashTask", "source": "packages/bash/bash/src/types.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "BashTaskRead", "source": "packages/bash/bash/src/types.ts" }, diff --git a/tsconfig.build.json b/tsconfig.build.json index c6c814c221..f5015b0906 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -21,6 +21,7 @@ { "path": "./packages/approval/approval" }, { "path": "./packages/sandbox/sandbox" }, { "path": "./packages/sandbox/sandbox-local" }, + { "path": "./packages/bash/bash-sandbox" }, { "path": "./packages/core/agent" }, { "path": "./packages/ui/user-interaction" }, { "path": "./packages/core/tools" }, diff --git a/tsconfig.json b/tsconfig.json index cd458490f7..59d9c3598a 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -32,6 +32,7 @@ { "path": "./packages/approval/approval" }, { "path": "./packages/sandbox/sandbox" }, { "path": "./packages/sandbox/sandbox-local" }, + { "path": "./packages/bash/bash-sandbox" }, { "path": "./packages/core/agent" }, { "path": "./packages/ui/user-interaction" }, { "path": "./packages/core/tools" }, From 0e49615a3d0de643d068514c672dbcad40e7ffa2 Mon Sep 17 00:00:00 2001 From: kingwl Date: Thu, 9 Jul 2026 16:37:10 +0800 Subject: [PATCH 171/232] =?UTF-8?q?feat(tool-bash):=20sandbox=20escalation?= =?UTF-8?q?=20=E2=80=94=20one=20approved=20wider=20retry=20after=20a=20den?= =?UTF-8?q?ial?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The tool gate advertises sandbox_permissions (an enum of exactly the modes STRICTLY WIDER than the mounted executor default — the schema makes a non-widening request inexpressible) plus a required justification, exactly when ctx.bash.sandboxMode reports a confining mode at registration: composition truth, never a dead lever. An escalating call resolves ctx.approval BEFORE anything executes with the audit-self-contained reason "escalate sandbox to : "; allowed-once stamps the granted mode onto that one bash request (the seam-level per-call override), while rejected / cancelled / unavailable and the no-service / no-agent paths each fail closed with their own error text and execute nothing. The description teaches the flow only when the fields exist: retry the SAME command once after a real denial, never preemptively; a rejected escalation is final. No new session events: the attempt is an ordinary tool/call, the decision is the approval audit pair, the outcome an ordinary tool/result whose facts name the mode it ran under. --- docs/capability-seams.md | 3 +- packages/bash/tool-bash/README.md | 2 +- packages/bash/tool-bash/package.json | 3 + packages/bash/tool-bash/src/index.ts | 237 ++++++++++++++--- packages/bash/tool-bash/tests/tools.spec.ts | 274 +++++++++++++++++++- pnpm-lock.yaml | 6 + scripts/gen-doc-graphs.ts | 2 +- 7 files changed, 493 insertions(+), 34 deletions(-) diff --git a/docs/capability-seams.md b/docs/capability-seams.md index 703226a968..7b3b7aca20 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -123,6 +123,7 @@ flowchart LR svc_agents --> pkg_invariants svc_agents --> pkg_stdio_agent svc_agents --> pkg_subagent_inprocess + svc_approval --> pkg_tool_bash svc_approval --> pkg_tools svc_bash --> pkg_hooks_claude svc_bash --> pkg_hooks_codex @@ -174,7 +175,7 @@ flowchart LR | `ctx.agentLoop` | `bundle` | [`agent-loop`](../packages/core/agent-loop) | - | [`agent-core`](../packages/core/agent-core) | - | The one concrete loop plugin; extension packages depend on dsh-agent events and services, not on this package. | | `ctx.bash` | `seam` | [`bash`](../packages/bash/bash) | [`bash-local`](../packages/bash/bash-local), [`bash-sandbox`](../packages/bash/bash-sandbox) | [`tool-bash`](../packages/bash/tool-bash), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | - | The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors replace bash-local without touching them. | | `ctx.sandbox` | `seam` | [`sandbox`](../packages/sandbox/sandbox) | [`sandbox-local`](../packages/sandbox/sandbox-local) | [`bash-sandbox`](../packages/bash/bash-sandbox) | - | Consumers hand over the exact argv they are about to spawn; same-world backends wrap it under a per-call policy and report enforcement. | -| `ctx.approval` | `seam` | [`approval`](../packages/approval/approval) | [`acp`](../packages/ui/acp) | [`tools`](../packages/core/tools) | - | One-shot permission decisions dispatched over the `approval/request` waterfall; answerers are listeners (the ACP bridge for its own agents), absence fails closed to `unavailable`. | +| `ctx.approval` | `seam` | [`approval`](../packages/approval/approval) | [`acp`](../packages/ui/acp) | [`tools`](../packages/core/tools), [`tool-bash`](../packages/bash/tool-bash) | - | One-shot permission decisions dispatched over the `approval/request` waterfall; answerers are listeners (the ACP bridge for its own agents), absence fails closed to `unavailable`. | | `ctx.codeRuntime` | `seam` | [`code-runtime`](../packages/code-runtime/code-runtime) | [`code-runtime-worker`](../packages/code-runtime/code-runtime-worker) | [`tools`](../packages/core/tools) | - | Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the tool registry consumes it for Code Mode). | | `ctx.fs` | `seam` | [`fs`](../packages/fs/fs) | [`fs-local`](../packages/fs/fs-local) | [`tool-fs`](../packages/fs/tool-fs) | [`fs-policy`](../packages/fs/fs-policy) | tool-fs executes read/write/edit through ctx.fs; fs-policy contributes observed-state checks through the fs/* event gate. | | `ctx.compact` | `seam` | [`compact`](../packages/compact/compact) | [`compact-basic`](../packages/compact/compact-basic) | [`compact-basic`](../packages/compact/compact-basic) | - | The basic backend currently consumes the pre-step event directly; a model-facing compact tool remains deferred. | diff --git a/packages/bash/tool-bash/README.md b/packages/bash/tool-bash/README.md index b5f6680717..a45962e29c 100644 --- a/packages/bash/tool-bash/README.md +++ b/packages/bash/tool-bash/README.md @@ -52,5 +52,5 @@ The `BashExecRequest` seam carries optional `stdin` and `env`, used by the hooks Commands run with the executor's full authority unless a sandboxing executor ([`dsh-bash-sandbox`](../bash-sandbox/)) confines them — the deny-only sandbox reports denials as result facts, rendered here as the denial marker; per-call allow/deny/ask policy is the `tools/pre-execute` waterfall (see docs/architecture.md). -The escalation gate — one approved wider retry of a denied command through `ctx.approval` — is the sandbox RFC's staged follow-up ([§ Escalation](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)); this layer today renders the denial facts and forbids retrying around them. +On top of a denial sits the escalation gate ([the sandbox RFC § Escalation](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)): an escalating call (`sandbox_permissions` + `justification`) resolves [`ctx.approval`](../../approval/approval/README.md) BEFORE anything executes — `allowed-once` stamps the granted mode onto the bash request as the seam-level `sandboxMode` override (that one call runs, classifies, and reports under the wider mode; its neighbors keep the executor's default), while `rejected`/`cancelled`/`unavailable` and the no-service / no-agent paths each fail closed with their own error text and execute nothing. The seam is consumed opportunistically (`ctx.get('approval')`, the dsh-tools ask-routing pattern); the grant is consumed by the very call that asked, and nothing is stored. The static description teaches — and a denied result itself prompts, via the escalation-available marker appended exactly when the fields are advertised — the SAME-TURN flow: on a denial a wider mode would cure, retry the exact command once with `sandbox_permissions` (the narrowest mode that suffices) + `justification` immediately, without detouring through chat (the approval prompt IS the user's consent); never speculatively — an escalation is grounded in a real denial (up-front only when the session already denied the same access), a prompt-stated approvals-disabled policy turns the exception off entirely, and a rejected escalation is final for that command. diff --git a/packages/bash/tool-bash/package.json b/packages/bash/tool-bash/package.json index b08ccd7b74..bd8f8c1aea 100644 --- a/packages/bash/tool-bash/package.json +++ b/packages/bash/tool-bash/package.json @@ -23,6 +23,7 @@ "license": "BSD-3-Clause", "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", + "@deepseek-ai/dsh-approval": "^0.0.1", "@deepseek-ai/dsh-bash": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-sandbox": "^0.0.1", @@ -33,12 +34,14 @@ "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-agent-loop": "workspace:^", + "@deepseek-ai/dsh-approval": "workspace:^", "@deepseek-ai/dsh-bash": "workspace:^", "@deepseek-ai/dsh-bash-local": "workspace:^", "@deepseek-ai/dsh-bash-sandbox": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-sandbox": "workspace:^", "@deepseek-ai/dsh-sandbox-local": "workspace:^", + "@deepseek-ai/dsh-session": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", "cordis": "^4.0.0-rc.6" diff --git a/packages/bash/tool-bash/src/index.ts b/packages/bash/tool-bash/src/index.ts index 9544858c9e..da6c5c3325 100644 --- a/packages/bash/tool-bash/src/index.ts +++ b/packages/bash/tool-bash/src/index.ts @@ -33,12 +33,16 @@ * Commands run with the executor's full authority unless a sandboxing * executor (`@deepseek-ai/dsh-bash-sandbox`) confines them; per-call * allow/deny/ask policy is the `tools/pre-execute` waterfall — see - * docs/architecture.md § Extension And Composition. A sandbox denial is a - * RESULT FACT this layer renders as its own marker (the command RAN and the - * kernel refused a file effect), and a sandbox RUNNER failure renders as a - * sandbox problem, never a command failure. The escalation surface and the - * per-session mode switching are staged follow-ups of the sandbox RFC - * (docs/rfc/proposed/feature/2026-07-06-sandbox.md). + * docs/architecture.md § Extension And Composition. Under a sandboxing + * executor this plugin also advertises the ESCALATION surface + * (`sandbox_permissions`/`justification` — the sandbox RFC § Escalation, + * docs/rfc/proposed/feature/2026-07-06-sandbox.md): a command the + * sandbox denied may be retried once under a strictly wider mode, resolved + * through `ctx.approval` BEFORE anything executes and failing closed on every + * unanswerable path. The fields exist only when the mounted executor reports + * a confining default (`ctx.bash.sandboxMode`) — a lever is never advertised + * that the composition cannot honor. Per-session mode switching is the + * sandbox RFC's staged follow-up. * * @module @deepseek-ai/dsh-tool-bash */ @@ -46,9 +50,15 @@ import type { Context } from 'cordis' import { isAbsolute, resolve as resolvePath } from 'node:path' import { defineTool } from '@deepseek-ai/dsh-tools' -import type { GenericCallView, TerminalCallView, ToolResult, ToolResultView } from '@deepseek-ai/dsh-tools' +import type { GenericCallView, TerminalCallView, ToolExecution, ToolResult, ToolResultView } from '@deepseek-ai/dsh-tools' import type { Agent } from '@deepseek-ai/dsh-agent' +import { assertNever } from '@deepseek-ai/dsh-llm' import type {} from '@deepseek-ai/dsh-system-prompt' +// Side-effect type import: declaration-merges `ctx.approval`, consumed +// opportunistically by the escalation gate (`ctx.get('approval')` — the seam +// stays optional at runtime, same pattern as dsh-tools' ask routing). +import type {} from '@deepseek-ai/dsh-approval' +import type { SandboxMode } from '@deepseek-ai/dsh-sandbox' import { BashTaskId, OwnerToken } from '@deepseek-ai/dsh-bash' import type { BashRunResult, BashTask, CollectedOutput } from '@deepseek-ai/dsh-bash' @@ -60,16 +70,12 @@ export const inject = ['tools', 'bash', 'systemPrompt'] * validates parsed args against the SchemaSpec before `execute` runs (the * arg-validation RFC), so type/required/enum checks are already done and `args` * is the validated `InferArgs` shape here. What remains are value constraints - * the DSL has no vocabulary for: non-empty strings and a positive, finite - * timeout. + * the DSL has no vocabulary for: non-empty strings, a positive finite timeout, + * and the escalation pairing (`sandbox_permissions` and `justification` travel + * together — an approval prompt without a reason, or a reason driving nothing, + * is a malformed ask). */ -function validateBashArgs(args: { - command: string - description: string - timeoutMs?: number - workdir?: string - run_in_background?: boolean -}): void { +function validateBashArgs(args: BashToolArgs): void { if (args.command.trim().length === 0) { throw new Error('invalid command: expected a non-empty string') } @@ -79,6 +85,15 @@ function validateBashArgs(args: { if (args.timeoutMs !== undefined && (!Number.isFinite(args.timeoutMs) || args.timeoutMs <= 0)) { throw new Error(`invalid timeoutMs: expected a positive number, got ${JSON.stringify(args.timeoutMs)}`) } + if (args.sandbox_permissions !== undefined && args.justification === undefined) { + throw new Error('invalid escalation: sandbox_permissions requires a justification') + } + if (args.justification !== undefined && args.sandbox_permissions === undefined) { + throw new Error('invalid escalation: justification is only valid together with sandbox_permissions') + } + if (args.justification !== undefined && args.justification.trim().length === 0) { + throw new Error('invalid justification: expected a non-empty sentence') + } } /** @@ -93,6 +108,75 @@ function validateTaskId(value: string): BashTaskId { return BashTaskId(value) } +/** + * The bash tool's validated argument shape — the base parameters plus the two + * escalation fields, which are ADVERTISED only when the mounted executor + * reports a confining default mode (absent from the schema otherwise, so the + * SchemaSpec validator rejects them before `execute` ever sees one). + */ +interface BashToolArgs { + command: string + description: string + timeoutMs?: number + workdir?: string + run_in_background?: boolean + sandbox_permissions?: string + justification?: string +} + +/** + * The strictly-wider table: what a call whose effective mode is the key may + * escalate TO. Checked at EXECUTION, never baked into the schema — the + * schema's enum is {@link ESCALATION_TARGETS}, because schemas are + * registry-global while the effective mode is per-call truth. + */ +const WIDER_MODES: Record = { + 'read-only': ['workspace-write', 'danger-full-access'], + 'workspace-write': ['danger-full-access'], +} + +/** + * The closed escalation-target vocabulary — every mode a call could ever + * escalate TO (`read-only` is the floor; nothing escalates to it). Advertised + * whenever the mounted executor confines: cutting the enum down to the modes + * wider than the executor's DEFAULT would strand a session whose effective + * mode sits below it (a `danger-full-access` default would advertise nothing + * while a narrower-switched session stays confined with no lever). + */ +const ESCALATION_TARGETS: readonly SandboxMode[] = ['workspace-write', 'danger-full-access'] + +/** + * The bash tool's static description. The base text is byte-stable regardless + * of composition (it is part of the pinned snapshot header); the escalation + * teaching rides only when the mounted executor actually honors the fields — + * it names the ONE sanctioned exception to the base text's "do not retry + * another way" rule. Its deference clause ("If the session states approval + * prompts are disabled…") points at the approval plugin's never-policy prompt + * sentence by meaning, not by parsed wording — a rendezvous kept working by + * that sentence continuing to open with the approvals-disabled claim. + */ +function bashDescription(escalationModes: readonly SandboxMode[]): string { + const base = 'Execute a bash command (`bash -c`) and return its stdout/stderr. ' + + 'Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — ' + + 'pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. ' + + 'Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under mode]` — a policy denial, not a bug in the command; do not retry another way (a background task reports the same marker via bash_output once it has finished). ' + + 'Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. ' + + 'Set `run_in_background: true` for long-running commands: the call returns a task id immediately; ' + + 'poll it with `bash_output` and stop it with `bash_kill`.' + if (escalationModes.length === 0) return base + return base + ' Attempting a command the sandbox may deny is safe and expected: run it and read the ' + + 'marker rather than assuming the denial. When a command IS denied and a wider mode would let it ' + + 'succeed, escalate immediately in the SAME turn — the ONE sanctioned exception to a denial: retry ' + + 'the exact same command once with `sandbox_permissions` (the narrowest wider mode that suffices) ' + + 'plus a one-sentence `justification`. Do not detour through chat to ask permission first — the ' + + 'approval prompt raised by that retry IS how the user consents. If the session states approval ' + + 'prompts are disabled, there is no exception: a denial is final — do not set `sandbox_permissions`. ' + + 'Never escalate speculatively: ground the request in a real denial — normally the one THIS command ' + + 'just hit; escalating up front is fine only when this session already denied the same access. ' + + 'A rejected escalation is final for THAT command — stop and explain, never work around ' + + 'it — but it does not forbid attempting or escalating other commands later.' +} + /** Append the truncation notice (with the full-output spill path) to a stream's text. */ function streamText(output: CollectedOutput): string { if (!output.truncated) return output.text @@ -105,9 +189,15 @@ function streamText(output: CollectedOutput): string { * errored — the model decides how to react; only infrastructure failures * (spawn errors, aborts) surface as isError results. * @param result - the completed foreground run from the executor. + * @param escalationModes - the escalation targets this composition advertises; + * non-empty adds the same-turn escalation hint after a denial marker + * (default `[]`: no hint). * @returns the model-facing text: output body (or `(no output)`), then any timeout/signal/exit markers, each on its own line. */ -export function renderResult(result: BashRunResult): string { +export function renderResult( + result: BashRunResult, + escalationModes: readonly SandboxMode[] = [], +): string { const out = streamText(result.stdout) const err = streamText(result.stderr) @@ -125,6 +215,13 @@ export function renderResult(result: BashRunResult): string { // reported fact like timeout: the model decides how to react. if (result.sandbox?.denied) { markers.push(`[sandbox: file access denied under ${result.sandbox.mode} mode]`) + // The same-turn nudge lives at the decision point: only when this + // composition advertises the fields (a lever is never hinted that the + // schema does not offer), and inside the sandbox marker family so the + // exit-code marker stays the last line. + if (escalationModes.length > 0) { + markers.push('[sandbox: escalation available — retry this exact command once with sandbox_permissions (the narrowest wider mode that suffices) + justification; the approval prompt asks the user]') + } } // Timeout is reported independently of how the process actually ended: a // command can trap SIGTERM and exit 0 after our timer fired (e.g. @@ -366,15 +463,73 @@ export function apply(ctx: Context): void { } }) + // The escalation surface exists exactly when the mounted executor confines + // under a default that has a strictly wider mode to escalate to — a lever + // is never advertised that the composition cannot honor. Registration time + // is the right read: the executor's default is config-fixed for its + // lifetime, and an executor swap restarts this fiber (static inject) and + // re-registers the schema. + const defaultMode = ctx.bash.sandboxMode + const escalationModes: readonly SandboxMode[] = defaultMode === undefined ? [] : ESCALATION_TARGETS + + /** + * Resolve a sandbox-escalation request through `ctx.approval` BEFORE + * anything executes. Returns the granted mode to stamp onto the bash + * request; throws the distinct fail-closed text for every other path (no + * service composed, an agent-less execution, a rejection, a cancellation, + * an unanswerable ask) — the registry turns the throw into this call's + * isError result, and nothing has run. The seam is consumed + * opportunistically (`ctx.get`, the dsh-tools ask-routing pattern), so a + * deployment without it degrades per call, never at registration. + */ + const approveEscalation = async (mode: string, justification: string, exec: ToolExecution): Promise => { + // Schema validation only checks ADVERTISED keys, so an unadvertised + // `sandbox_permissions` (no sandboxing executor, or a `danger-full-access` + // default with nothing wider) still reaches execute — reject it here so a + // human is never prompted to "escalate" a sandbox that is not there. When + // the fields ARE advertised, the registry's SchemaSpec enum has already + // pinned `mode` to this ladder for every caller. + if (escalationModes.length === 0) { + throw new Error('sandbox_permissions is not available in this composition (no sandboxing executor to escalate)') + } + // Strict widening is an EXECUTION check against the call's effective + // mode, deliberately not a schema constraint (the enum is the closed + // target vocabulary; the effective mode is per-call truth). A + // non-widening request fails closed here and never prompts a human. + const effectiveMode = defaultMode as SandboxMode + if (!(WIDER_MODES[effectiveMode] ?? []).includes(mode as SandboxMode)) { + throw new Error(`sandbox escalation to "${mode}" is not strictly wider than this call's current "${effectiveMode}" mode`) + } + const approval = ctx.get('approval') + if (approval === undefined) { + throw new Error(`sandbox escalation to "${mode}" requires approval, but no approval service is composed`) + } + if (exec.agent === undefined) { + throw new Error(`sandbox escalation to "${mode}" requires approval, but the call has no agent to route it through`) + } + const outcome = await approval.request({ + agent: exec.agent, + toolName: 'bash', + callId: exec.callId, + // Self-contained for the audit trail: approval/asked stores this + // reason, and the target mode is part of the grant's identity. + reason: `escalate sandbox to ${mode}: ${justification}`, + ...exec.signal ? { signal: exec.signal } : {}, + }) + switch (outcome) { + // The SchemaSpec enum already pinned `mode` to this executor's wider + // ladder; the cast records that validated fact. + case 'allowed-once': return mode as SandboxMode + case 'rejected': throw new Error(`the user rejected escalating this command to "${mode}"`) + case 'cancelled': throw new Error(`approval for escalating to "${mode}" was cancelled`) + case 'unavailable': throw new Error(`sandbox escalation to "${mode}" requires approval, but no approval channel is available`) + default: return assertNever(outcome, 'ApprovalOutcome') + } + } + ctx.tools.register(defineTool({ name: 'bash', - description: 'Execute a bash command (`bash -c`) and return its stdout/stderr. ' - + 'Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — ' - + 'pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. ' - + 'Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under mode]` — a policy denial, not a bug in the command; do not retry another way (a background task reports the same marker via bash_output once it has finished). ' - + 'Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. ' - + 'Set `run_in_background: true` for long-running commands: the call returns a task id immediately; ' - + 'poll it with `bash_output` and stop it with `bash_kill`.', + description: bashDescription(escalationModes), parameters: { command: { type: 'string', required: true, description: 'The bash command to execute.' }, description: { @@ -387,12 +542,31 @@ export function apply(ctx: Context): void { timeoutMs: { type: 'number', description: 'Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry.' }, workdir: { type: 'string', description: 'Working directory for this command. Defaults to the session workspace; a relative path is resolved against it.' }, run_in_background: { type: 'boolean', description: 'Run in the background and return a task id immediately. No timeout applies.' }, + ...escalationModes.length > 0 ? { + sandbox_permissions: { + type: 'string' as const, + enum: [...escalationModes], + description: 'The wider sandbox mode this command needs. Only valid as a one-shot retry ' + + 'of a command the sandbox just denied; requires justification and user approval.', + }, + justification: { + type: 'string' as const, + description: 'Required with sandbox_permissions: one sentence for the user explaining ' + + 'why this exact command needs the wider access.', + }, + } : {}, }, - async execute(args, exec) { + async execute(args: BashToolArgs, exec) { validateBashArgs(args) // `description` is display/logging metadata only (surfaced to UIs via // the tool/call session event); it is intentionally NOT forwarded to // ctx.bash and has no effect on execution. + // An escalating call resolves approval BEFORE anything executes; every + // non-grant outcome throws its distinct error text and runs nothing. + // (validateBashArgs pinned the pairing, so the double narrow is exact.) + const sandboxMode = args.sandbox_permissions !== undefined && args.justification !== undefined + ? await approveEscalation(args.sandbox_permissions, args.justification, exec) + : undefined // Default the workdir to the calling agent's session cwd so each ACP // session runs in its own workspace (see resolveWorkdir); an explicit // model workdir still wins. @@ -402,6 +576,7 @@ export function apply(ctx: Context): void { ...workdir !== undefined ? { workdir } : {}, ...args.timeoutMs !== undefined ? { timeoutMs: args.timeoutMs } : {}, ...exec.signal ? { signal: exec.signal } : {}, + ...sandboxMode !== undefined ? { sandboxMode } : {}, } if (args.run_in_background === true) { // Stamp the owner token (the agent's session id) onto the spec so the @@ -413,7 +588,7 @@ export function apply(ctx: Context): void { } const result = await ctx.bash.run(ctx.bash.resolve(request)) if (result.aborted) throw new Error('command aborted') - return [{ type: 'text', text: renderResult(result) }] + return [{ type: 'text', text: renderResult(result, escalationModes) }] }, presentCall: presentBashCall, presentResult: presentBashResult, @@ -446,10 +621,14 @@ export function apply(ctx: Context): void { // error; a settled task's read carries the marker instead. text += `\n[sandbox: the sandbox runner itself failed under ${read.task.sandbox.mode} mode — the command did not run; this is a sandbox problem, not a command failure]` } else if (read.task.sandbox?.denied) { - // Mirrors the foreground result marker. Background denials are only - // classifiable once the task settles (the classifier needs the whole - // stderr), so the marker rides every read that sees the settled task. + // Mirrors the foreground result marker (and its same-turn escalation + // hint). Background denials are only classifiable once the task + // settles (the classifier needs the whole stderr), so the marker + // rides every read that sees the settled task. text += `\n[sandbox: file access denied under ${read.task.sandbox.mode} mode]` + if (escalationModes.length > 0) { + text += '\n[sandbox: escalation available — retry this exact command once with sandbox_permissions (the narrowest wider mode that suffices) + justification; the approval prompt asks the user]' + } } return Promise.resolve([{ type: 'text', text }]) }, diff --git a/packages/bash/tool-bash/tests/tools.spec.ts b/packages/bash/tool-bash/tests/tools.spec.ts index 2af987e941..9ae80f28fb 100644 --- a/packages/bash/tool-bash/tests/tools.spec.ts +++ b/packages/bash/tool-bash/tests/tools.spec.ts @@ -15,6 +15,8 @@ import { SandboxBashExecutor } from '@deepseek-ai/dsh-bash-sandbox' import { SandboxProvider } from '@deepseek-ai/dsh-sandbox' import type { ConfinedArgv } from '@deepseek-ai/dsh-sandbox' import { LocalSandboxProvider } from '@deepseek-ai/dsh-sandbox-local' +import ApprovalService from '@deepseek-ai/dsh-approval' +import type { ApprovalOutcome } from '@deepseek-ai/dsh-approval' import * as ToolBash from '@deepseek-ai/dsh-tool-bash' import { renderResult } from '@deepseek-ai/dsh-tool-bash' @@ -999,6 +1001,17 @@ describe('sandbox rendering', () => { expect(text).toMatch(/\[sandbox: file access denied under read-only mode\]\n\[exit code: 1\]$/) }) + it('appends the same-turn escalation hint to a denial exactly when the fields are advertised', () => { + const hinted = renderResult(sandboxResult(true, 1), ['workspace-write', 'danger-full-access']) + expect(hinted).toMatch( + /denied under read-only mode\]\n\[sandbox: escalation available — retry this exact command once with sandbox_permissions [^\n]+\]\n\[exit code: 1\]$/, // eslint-disable-line @stylistic/max-len -- the hint sentence is pinned verbatim + ) + // Default (no advertisement): no hint — a lever the schema does not offer is never suggested. + expect(renderResult(sandboxResult(true, 1))).not.toContain('escalation available') + // A non-denied result never hints, advertised or not. + expect(renderResult(sandboxResult(false, 2), ['danger-full-access'])).not.toContain('escalation available') + }) + it('renders no sandbox marker for a plain failure under a sandboxed mode', () => { expect(renderResult(sandboxResult(false, 2))).not.toContain('[sandbox:') }) @@ -1017,7 +1030,58 @@ describe('sandbox rendering', () => { const id = text(started).match(/started background task (bash-\d+)/)![1] await bash.list().find(task => task.id === id)!.done const read = await call(ctx, 'bash_output', { task_id: id }) - expect(text(read)).toMatch(/\[status: completed, exit code: 1\]\n\[sandbox: file access denied under read-only mode\]$/) + expect(text(read)).toMatch( + /\[status: completed, exit code: 1\]\n\[sandbox: file access denied under read-only mode\]\n\[sandbox: escalation available[^\n]+\]$/, + ) + }) + + it('a settled background denial renders no escalation hint without a confining executor (defensive arm)', async () => { + // Structurally near-unreachable through the real stack — every confining + // default advertises the static target set — but the read path guards + // it anyway: an executor that reports no sandboxMode (fields never + // advertised) whose task nonetheless carries denial facts must render + // the marker without suggesting a lever the schema does not offer. + class FactsOnlyExecutor extends BashExecutor { + private readonly task: BashTask = { + id: BashTaskId('bash-facts'), + command: 'fake', + status: 'completed', + exitCode: 1, + signal: null, + done: Promise.resolve(), + sandbox: { mode: 'read-only', denied: true }, + } + + resolve(request: BashExecRequest): BashExecSpec { + return { + command: request.command, + workdir: request.workdir ?? process.cwd(), + timeoutMs: request.timeoutMs ?? 0, + ...request.signal ? { signal: request.signal } : {}, + owner: request.owner, + sandboxMode: request.sandboxMode, + } + } + + run(): Promise { return Promise.reject(new Error('not used')) } + start(): BashTask { return this.task } + get(id: string): BashTask | undefined { return id === this.task.id ? this.task : undefined } + list(): BashTask[] { return [this.task] } + kill(): boolean { return false } + ownerOf(): OwnerToken | undefined { return undefined } + readOutput(): BashTaskRead { + return { task: this.task, delta: '', lossy: false } + } + } + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(FactsOnlyExecutor) + await ctx.plugin(ToolBash) + const read = await call(ctx, 'bash_output', { task_id: 'bash-facts' }) + expect(text(read)).toMatch(/\[sandbox: file access denied under read-only mode\]$/) + expect(text(read)).not.toContain('escalation available') }) it('bash_output reports a settled background RUNNER failure as a sandbox problem, outranking the denial marker', async () => { @@ -1063,7 +1127,213 @@ describe('sandbox rendering', () => { chmodSync(lockedDir, 0o555) const result = await call(ctx, 'bash', { command: `echo x > ${lockedDir}/f`, description: 'Write into a locked directory' }) expect(result.isError).toBe(false) - expect(text(result)).toMatch(/\[sandbox: file access denied under read-only mode\]\n\[exit code: \d+\]$/) + expect(text(result)).toMatch( + /denied under read-only mode\]\n\[sandbox: escalation available[^\n]+\]\n\[exit code: \d+\]$/, + ) }) }) +describe('sandbox escalation (sandbox_permissions / justification)', () => { + /** Compose the real sandbox stack (passthrough runner) at a given default mode. */ + async function setupSandboxed(mode?: 'read-only' | 'workspace-write' | 'danger-full-access', opts: { approval?: boolean } = {}) { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(LocalSandboxProvider, { runnerCommand: PASSTHROUGH_RUNNER }) + await ctx.plugin(SandboxBashExecutor, { graceMs: 200, ...mode !== undefined ? { mode } : {} }) + const bash = ctx.bash as SandboxBashExecutor + bash.internals = { spillDir } + if (opts.approval === true) await ctx.plugin(ApprovalService) + await ctx.plugin(ToolBash) + return { ctx, bash } + } + + /** The registered bash tool's wire schema (what the model actually sees). */ + function bashSchema(ctx: Context) { + const schema = ctx.tools.schemas().find(s => s.name === 'bash') + if (!schema) throw new Error('bash tool not registered') + return schema as unknown as { description: string; parameters: { properties: Record } } + } + + /** + * A fake agent whose session records appends — the approval audit surface. + * Seeded mid-turn: an escalating call always runs inside one, and request() + * enforces the enclosure. + */ + function escalationAgent(events: Array<{ type: string; data: Record }>): Agent { + return { + id: 'agent-esc', + session: { + header: { version: 0, id: 'sess-esc', createdAt: 0 }, + events: [{ type: 'turn/start' }], + append: (type: string, data: Record) => { events.push({ type, data }) }, + }, + } as unknown as Agent + } + + let escCall = 0 + function callAs(ctx: Context, agent: Agent | undefined, args: unknown) { + return ctx.tools.execute({ callId: CallId(`call-esc-${++escCall}`), name: 'bash', arguments: args, ...agent ? { agent } : {} }) + } + + const ESCALATE = { command: 'true', description: 'test escalation', sandbox_permissions: 'workspace-write', justification: 'the test needs it' } + + it('advertises no escalation surface under a non-sandboxing executor', async () => { + const ctx = await setup() + expect(ctx.bash.sandboxMode).toBeUndefined() + const schema = bashSchema(ctx) + expect(schema.parameters.properties['sandbox_permissions']).toBeUndefined() + expect(schema.parameters.properties['justification']).toBeUndefined() + expect(schema.description).not.toContain('sanctioned exception') + }) + + it('advertises the full closed target vocabulary under any confining default', async () => { + // The enum is deliberately NOT default-relative: a session's effective + // mode is per-session and switchable, so every confining composition + // advertises every possible target — strict widening is checked at + // execution against the call's effective mode instead. + for (const mode of [undefined, 'workspace-write', 'danger-full-access'] as const) { + const { ctx } = await setupSandboxed(mode) + const schema = bashSchema(ctx) + expect(schema.parameters.properties['sandbox_permissions']?.enum).toEqual(['workspace-write', 'danger-full-access']) + expect(schema.parameters.properties['justification']).toBeDefined() + expect(schema.description).toContain('sanctioned exception') + } + }) + + it('a non-widening request fails at execution with its own text and prompts no one', async () => { + const { ctx } = await setupSandboxed('danger-full-access', { approval: true }) + const consulted = vi.fn() + ctx.on('approval/request', (_req, next) => { consulted(); return next() }) + const result = await callAs(ctx, escalationAgent([]), { command: 'true', description: 'd', sandbox_permissions: 'workspace-write', justification: 'already wider' }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('not strictly wider than this call\'s current "danger-full-access" mode') + expect(consulted).not.toHaveBeenCalled() + }) + + it('rejects sandbox_permissions without a justification, and vice versa, and a blank justification', async () => { + const { ctx } = await setupSandboxed() + const missing = await callAs(ctx, undefined, { command: 'true', description: 'd', sandbox_permissions: 'workspace-write' }) + expect(missing.isError).toBe(true) + expect(text(missing)).toContain('sandbox_permissions requires a justification') + const orphan = await callAs(ctx, undefined, { command: 'true', description: 'd', justification: 'why not' }) + expect(orphan.isError).toBe(true) + expect(text(orphan)).toContain('only valid together with sandbox_permissions') + const blank = await callAs(ctx, undefined, { command: 'true', description: 'd', sandbox_permissions: 'workspace-write', justification: ' ' }) + expect(blank.isError).toBe(true) + expect(text(blank)).toContain('expected a non-empty sentence') + }) + + it('the schema enum rejects a mode outside the target vocabulary before execute (registry-level, any caller)', async () => { + const { ctx } = await setupSandboxed() + const result = await callAs(ctx, undefined, { command: 'true', description: 'd', sandbox_permissions: 'read-only', justification: 'narrow' }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('must be one of') + }) + + it('rejects an unadvertised sandbox_permissions injection under a non-sandboxing executor', async () => { + const ctx = await setup() + const result = await callAs(ctx, undefined, { command: 'true', description: 'd', sandbox_permissions: 'workspace-write', justification: 'sneaky' }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('not available in this composition') + }) + + it('fails closed with its own text when no approval service is composed', async () => { + const { ctx } = await setupSandboxed() + const result = await callAs(ctx, escalationAgent([]), ESCALATE) + expect(result.isError).toBe(true) + expect(text(result)).toContain('no approval service is composed') + }) + + it('fails closed with its own text for an agent-less escalating call', async () => { + const { ctx } = await setupSandboxed('read-only', { approval: true }) + const result = await callAs(ctx, undefined, ESCALATE) + expect(result.isError).toBe(true) + expect(text(result)).toContain('no agent to route it through') + }) + + it('fails closed with its own text when the service has no answerer', async () => { + const { ctx } = await setupSandboxed('read-only', { approval: true }) + const result = await callAs(ctx, escalationAgent([]), ESCALATE) + expect(result.isError).toBe(true) + expect(text(result)).toContain('no approval channel is available') + }) + + it('a grant runs THAT call under the wider mode — the denial marker names it — and lands the audit pair', async () => { + const { ctx } = await setupSandboxed('read-only', { approval: true }) + ctx.on('approval/request', () => Promise.resolve('allowed-once')) + const events: Array<{ type: string; data: Record }> = [] + // A real unix denial under the passthrough runner: the marker's mode can + // only say workspace-write if the override actually rode the spec. + const lockedDir = join(mkdtempSync(join(tmpdir(), 'dsh-esc-denied-')), 'locked') + mkdirSync(lockedDir) + chmodSync(lockedDir, 0o555) + const result = await callAs(ctx, escalationAgent(events), { + command: `echo x > ${lockedDir}/f`, + description: 'write into a locked directory', + sandbox_permissions: 'workspace-write', + justification: 'must write outside the workspace', + }) + expect(result.isError).toBe(false) + expect(text(result)).toMatch(/\[sandbox: file access denied under workspace-write mode\]/) + expect(events.map(e => e.type)).toEqual(['approval/asked', 'approval/decided']) + expect(events[0]?.data['toolName']).toBe('bash') + expect(events[0]?.data['reason']).toBe('escalate sandbox to workspace-write: must write outside the workspace') + expect(events[1]?.data['outcome']).toBe('allowed-once') + }) + + it('a granted background start settles with the wider mode\'s facts', async () => { + const { ctx, bash } = await setupSandboxed('read-only', { approval: true }) + ctx.on('approval/request', () => Promise.resolve('allowed-once')) + const started = await callAs(ctx, escalationAgent([]), { ...ESCALATE, run_in_background: true }) + expect(started.isError).toBe(false) + const id = text(started).match(/started background task (bash-\d+)/)?.[1] + const task = bash.list().find(t => t.id === id) + if (!task) throw new Error('escalated task not tracked') + await task.done + expect(task.sandbox).toMatchObject({ mode: 'workspace-write', denied: false }) + }) + + it('a rejection denies with the user-said-no text and runs nothing', async () => { + const { ctx } = await setupSandboxed('read-only', { approval: true }) + ctx.on('approval/request', () => Promise.resolve('rejected')) + // A live (non-aborted) signal rides the execution: the gate threads it + // into the approval request so a turn cancellation can withdraw the ask. + const result = await ctx.tools.execute({ + callId: CallId(`call-esc-${++escCall}`), + name: 'bash', + arguments: ESCALATE, + agent: escalationAgent([]), + signal: new AbortController().signal, + }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('the user rejected escalating this command to "workspace-write"') + }) + + it('a cancellation denies with the cancelled text', async () => { + const { ctx } = await setupSandboxed('read-only', { approval: true }) + ctx.on('approval/request', () => Promise.resolve('cancelled')) + const result = await callAs(ctx, escalationAgent([]), ESCALATE) + expect(result.isError).toBe(true) + expect(text(result)).toContain('approval for escalating to "workspace-write" was cancelled') + }) + + it('a rogue approval stand-in returning a non-vocabulary outcome hits the exhaustiveness backstop', async () => { + const { ctx } = await setupSandboxed() + ctx.provide('approval', { request: () => Promise.resolve('yolo') } as unknown as InstanceType) + const result = await callAs(ctx, escalationAgent([]), ESCALATE) + expect(result.isError).toBe(true) + expect(text(result)).toContain('unreachable') + }) + + it('a plain call under a sandboxing executor never consults approval', async () => { + const { ctx } = await setupSandboxed('read-only', { approval: true }) + const asked = vi.fn() + ctx.on('approval/request', (_req, next) => { asked(); return next() }) + const result = await callAs(ctx, escalationAgent([]), { command: 'echo plain', description: 'plain run' }) + expect(result.isError).toBe(false) + expect(text(result)).toContain('plain') + expect(asked).not.toHaveBeenCalled() + }) +}) diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 1afe78f76e..624ae3407d 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -157,6 +157,9 @@ importers: '@deepseek-ai/dsh-agent-loop': specifier: workspace:^ version: link:../../core/agent-loop + '@deepseek-ai/dsh-approval': + specifier: workspace:^ + version: link:../../approval/approval '@deepseek-ai/dsh-bash': specifier: workspace:^ version: link:../bash @@ -175,6 +178,9 @@ importers: '@deepseek-ai/dsh-sandbox-local': specifier: workspace:^ version: link:../../sandbox/sandbox-local + '@deepseek-ai/dsh-session': + specifier: workspace:^ + version: link:../../core/session '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../../core/system-prompt diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index ae52bdb307..4396df9fc0 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -175,7 +175,7 @@ const SERVICE_ROLES: ServiceRole[] = [ title: 'Approval seam', mode: 'seam', implementations: ['acp'], - consumers: ['tools'], + consumers: ['tools', 'tool-bash'], note: 'One-shot permission decisions dispatched over the `approval/request` waterfall; answerers are listeners (the ACP bridge for its own agents), absence fails closed to `unavailable`.', }, { From 3f663c91549b94e66994c1ed9e3a93ab85758375 Mon Sep 17 00:00:00 2001 From: kingwl Date: Thu, 9 Jul 2026 16:41:03 +0800 Subject: [PATCH 172/232] =?UTF-8?q?feat(modes):=20per-session=20sandbox/ap?= =?UTF-8?q?proval=20switching=20=E2=80=94=20the=20session=20log=20as=20the?= =?UTF-8?q?=20store,=20ACP=20config=20options?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit effective(session) = findLast(the session own knob events)?.value ?? the composition-config default. One log-only event per knob, owned by its domain (bash/sandbox-mode in dsh-bash, approval/policy in dsh-approval), each exporting the same three-piece kit: the event declaration, a pure fold, and THE write path — a switch IS its event; no owner service, no facts map. Restart immunity and multi-session isolation fall out of the log replay by construction. Execution follows the fold on both sides: the bash tool stamps escalation grant > session override > executor default, and the approval seam prepends the never-gate that auto-rejects before any interactive answerer. Visibility is two layers per knob: a per-agent prompt section states the effective value on every request (logged through request/header*, so what-the-model-was-told replays from the log), and an agent/pre-step narrator injects at most one coalesced delta notice with positional attribution (user switch vs operator/config drift). The ACP bridge advertises one capability-gated select per composable knob with currentValue folded per session, validates set_config_option against the closed vocabularies, and anchors idle switches at the next turn prompt-submit under the turn-enclosure contract. --- docs/config-catalog.md | 34 ++- docs/cordis-catalog/events.md | 2 +- docs/cordis-catalog/services.md | 6 +- docs/event-producer-consumer.md | 6 +- docs/module-graph.md | 10 +- docs/persistence-catalog.md | 26 +- packages/approval/README.md | 4 +- packages/approval/approval/README.md | 6 +- packages/approval/approval/package.json | 5 + packages/approval/approval/src/index.ts | 187 ++++++++++++- .../approval/approval/tests/approval.spec.ts | 172 +++++++++++- packages/bash/bash/README.md | 4 +- packages/bash/bash/src/index.ts | 1 + packages/bash/bash/src/session-mode.ts | 65 +++++ packages/bash/tool-bash/README.md | 7 +- packages/bash/tool-bash/src/index.ts | 41 ++- packages/bash/tool-bash/tests/tools.spec.ts | 143 +++++++++- packages/ui/acp/README.md | 7 + packages/ui/acp/acp-feature-support.md | 10 +- packages/ui/acp/package.json | 3 + packages/ui/acp/src/index.ts | 180 +++++++++++- packages/ui/acp/tests/config-options.spec.ts | 260 ++++++++++++++++++ packages/ui/acp/tsconfig.json | 3 + pnpm-lock.yaml | 10 + 24 files changed, 1149 insertions(+), 43 deletions(-) create mode 100644 packages/bash/bash/src/session-mode.ts create mode 100644 packages/ui/acp/tests/config-options.spec.ts diff --git a/docs/config-catalog.md b/docs/config-catalog.md index baae8c65e0..94c4ef8851 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -31,7 +31,7 @@ export interface AcpConfig { Depends on: `Stream` (`@agentclientprotocol/sdk`) -Source: [`packages/ui/acp/src/index.ts:241`](../packages/ui/acp/src/index.ts) +Source: [`packages/ui/acp/src/index.ts:248`](../packages/ui/acp/src/index.ts) ## `@deepseek-ai/dsh-acp-agent` @@ -130,6 +130,37 @@ Depends on: [`AgentId`](../packages/core/agent/src/index.ts) · [`AgentOptions`] Source: [`packages/core/agent-loop/src/index.ts:36`](../packages/core/agent-loop/src/index.ts) +## `@deepseek-ai/dsh-approval` + +```ts config-catalog +/** Plugin config. All optional — `static Config` supplies the defaults. */ +export interface Config { + /** + * The deployment's default {@link ApprovalPolicy} for sessions without an + * `approval/policy` override — `'ask'` delegates to the composed answerers + * (fail-closed with none); `'never'` auto-rejects every ask without + * prompting (the deterministic CI/unattended stance). + */ + policy?: ApprovalPolicy +} + +/** + * A session's approval policy — what happens to an {@link ApprovalService} + * ask BEFORE any interactive answerer sees it: + * + * - `'ask'` (the default) — delegate to the composed answerers; with none + * composed the chain falls through to the fail-closed `'unavailable'` + * (exactly today's behavior). + * - `'never'` — never prompt anyone: every ask resolves `'rejected'` + * deterministically. The strict headless stance (CI, unattended runs) and + * the only policy value stated in the system prompt — unlike `'ask'`, its + * outcome is knowable without asking, so stating it cannot overclaim. + */ +export type ApprovalPolicy = 'ask' | 'never' +``` + +Source: [`packages/approval/approval/src/index.ts:244`](../packages/approval/approval/src/index.ts) + ## `@deepseek-ai/dsh-bash-local` ```ts config-catalog @@ -1029,7 +1060,6 @@ Source: [`packages/workflow/workflow-workerthread/src/index.ts:69`](../packages/ These load from a `cordis.yml` entry with no `config:` block; they declare no config surface. - `@deepseek-ai/dsh-agent` ([`packages/core/agent/src/index.ts`](../packages/core/agent/src/index.ts)) -- `@deepseek-ai/dsh-approval` ([`packages/approval/approval/src/index.ts`](../packages/approval/approval/src/index.ts)) - `@deepseek-ai/dsh-fs-policy` ([`packages/fs/fs-policy/src/index.ts`](../packages/fs/fs-policy/src/index.ts)) - `@deepseek-ai/dsh-llm` ([`packages/llm/llm/src/index.ts`](../packages/llm/llm/src/index.ts)) - `@deepseek-ai/dsh-session` ([`packages/core/session/src/index.ts`](../packages/core/session/src/index.ts)) diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index ee35a7a586..2f89dd481b 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -173,7 +173,7 @@ Waterfall asking the composed answerers to decide one approval request. Dispatch 'approval/request'(this: ApprovalService, req: ApprovalRequest, next: () => Promise): Promise ``` -Source: [`packages/approval/approval/src/index.ts:52`](../../packages/approval/approval/src/index.ts) +Source: [`packages/approval/approval/src/index.ts:64`](../../packages/approval/approval/src/index.ts) ## `fs/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 2206adfde6..0793f77a2a 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -44,11 +44,13 @@ Source: [`packages/core/agent/src/index.ts:117`](../../packages/core/agent/src/i The `ctx.approval` service: dispatches ApprovalRequests to the `approval/request` waterfall and audits every ask/outcome pair to the requesting agent's session log. Stateless between requests — grants are returned to the caller, never stored here. +Owns the policy tier too (`effective = fold(the session's 'approval/policy' events) ?? config.policy`): a PREPENDED decide-or-delegate gate resolves `'never'` sessions to `'rejected'` before any interactive answerer is prompted, a per-agent prompt section states a `'never'` policy (and only that one — an `'ask'` promise could overclaim an answerer that headless compositions do not have), and an `agent/pre-step` narrator injects at most one coalesced notice when a session's effective policy moved past what the model was last told. + ```ts cordis-catalog async request(req: ApprovalRequest): Promise ``` -Source: [`packages/approval/approval/src/index.ts:168`](../../packages/approval/approval/src/index.ts) +Source: [`packages/approval/approval/src/index.ts:269`](../../packages/approval/approval/src/index.ts) ## `ctx.bash` — `BashExecutor` (abstract seam) @@ -75,7 +77,7 @@ onTaskDone(listener: BashTaskListener): () => void Types: [BashExecRequest](../core-data-structures/bash.md) · [BashExecSpec](../core-data-structures/bash.md) · [BashRunResult](../core-data-structures/bash.md) · [BashTask](../core-data-structures/bash.md) · [BashTaskRead](../core-data-structures/bash.md) -Source: [`packages/bash/bash/src/index.ts:61`](../../packages/bash/bash/src/index.ts) +Source: [`packages/bash/bash/src/index.ts:62`](../../packages/bash/bash/src/index.ts) ## `ctx.codeRuntime` — `CodeRuntime` (abstract seam) diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 57b1f108ca..a5185aead5 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -10,8 +10,8 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `agent/created` | `emit` | [`packages/core/agent/src/types.ts:265`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:272`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/error` | `emit` | [`packages/core/agent/src/types.ts:476`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:357`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | -| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:370`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | +| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:357`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`approval`](../packages/approval/approval), [`compact-basic`](../packages/compact/compact-basic) | +| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:370`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | | `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:290`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | | `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:394`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | | `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:441`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | @@ -19,7 +19,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `agent/status` | `emit` | [`packages/core/agent/src/types.ts:281`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:451`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | | `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:464`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `approval/request` | `waterfall` | [`packages/approval/approval/src/index.ts:52`](../packages/approval/approval/src/index.ts) | [`approval`](../packages/approval/approval) (`waterfall`) | [`acp`](../packages/ui/acp) | +| `approval/request` | `waterfall` | [`packages/approval/approval/src/index.ts:63`](../packages/approval/approval/src/index.ts) | [`approval`](../packages/approval/approval) (`waterfall`) | [`acp`](../packages/ui/acp), [`approval`](../packages/approval/approval) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | diff --git a/docs/module-graph.md b/docs/module-graph.md index 4553e4f421..015f22677a 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -161,6 +161,7 @@ flowchart TD pkg_approval --> pkg_brand pkg_approval --> pkg_llm pkg_approval --> pkg_session + pkg_approval --> pkg_system_prompt pkg_workflow --> pkg_agent pkg_workflow --> pkg_brand pkg_workflow --> pkg_llm @@ -180,6 +181,7 @@ flowchart TD pkg_agent_loop --> pkg_system_prompt pkg_agent_loop --> pkg_tools pkg_tool_bash --> pkg_agent + pkg_tool_bash --> pkg_approval pkg_tool_bash --> pkg_bash pkg_tool_bash --> pkg_llm pkg_tool_bash --> pkg_sandbox @@ -211,7 +213,9 @@ flowchart TD pkg_hooks_codex --> pkg_tools pkg_acp --> pkg_agent pkg_acp --> pkg_approval + pkg_acp --> pkg_bash pkg_acp --> pkg_llm + pkg_acp --> pkg_sandbox pkg_acp --> pkg_session pkg_acp --> pkg_session_persistence pkg_acp --> pkg_tools @@ -320,12 +324,12 @@ flowchart TD | [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`invariants`](../packages/support/invariants) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`user-interaction`](../packages/ui/user-interaction) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm) | -| [`approval`](../packages/approval/approval) | `approval` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | +| [`approval`](../packages/approval/approval) | `approval` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`workflow`](../packages/workflow/workflow) | `workflow` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | | [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`approval`](../packages/approval/approval), [`code-runtime`](../packages/code-runtime/code-runtime), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`bash-sandbox`](../packages/bash/bash-sandbox) | `bash` | [`bash`](../packages/bash/bash), [`bash-local`](../packages/bash/bash-local), [`sandbox`](../packages/sandbox/sandbox) | | [`agent-loop`](../packages/core/agent-loop) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | -| [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | +| [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`approval`](../packages/approval/approval), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-fs`](../packages/fs/tool-fs) | `fs` | [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`subagent`](../packages/subagent/subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`tools`](../packages/core/tools) | | [`tool-web`](../packages/web/tool-web) | `web` | [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`web`](../packages/web/web) | @@ -333,7 +337,7 @@ flowchart TD | [`tool-todo`](../packages/todo/tool-todo) | `todo` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`tool-cordis`](../packages/cordis/tool-cordis) | `cordis` | [`tools`](../packages/core/tools) | | [`hooks-codex`](../packages/hooks/hooks-codex) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | -| [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`approval`](../packages/approval/approval), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | +| [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`approval`](../packages/approval/approval), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | | [`tool-ask-user`](../packages/ui/tool-ask-user) | `ui` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | | [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | `guard` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools) | | [`tool-workflow`](../packages/workflow/tool-workflow) | `workflow` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`workflow`](../packages/workflow/workflow) | diff --git a/docs/persistence-catalog.md b/docs/persistence-catalog.md index 5d8555e752..557c3d669c 100644 --- a/docs/persistence-catalog.md +++ b/docs/persistence-catalog.md @@ -23,7 +23,7 @@ An approval question was put to the answerer chain — log-only audit (like `hoo Types: [CallId](core-data-structures/core.md) -Source: [`packages/approval/approval/src/index.ts:66`](../packages/approval/approval/src/index.ts) +Source: [`packages/approval/approval/src/index.ts:77`](../packages/approval/approval/src/index.ts) #### `approval/decided` — log-only @@ -33,7 +33,17 @@ The outcome of a prior `approval/asked` (same `id`) — log-only audit. Exactly 'approval/decided': { id: ApprovalRequestId; outcome: ApprovalOutcome } ``` -Source: [`packages/approval/approval/src/index.ts:77`](../packages/approval/approval/src/index.ts) +Source: [`packages/approval/approval/src/index.ts:88`](../packages/approval/approval/src/index.ts) + +#### `approval/policy` — log-only + +The session's approval policy was switched — log-only, durable, replayable, never in the model transcript (the model learns the policy from the prompt section and the narrator's notices). The LAST such event is the session's override (effectiveApprovalPolicy); who asked for it is derivable from position (an event after the log's last `request/header*` was a runtime switch by the user). + +```ts persistence-catalog +'approval/policy': { policy: ApprovalPolicy } +``` + +Source: [`packages/approval/approval/src/index.ts:100`](../packages/approval/approval/src/index.ts) ### `assistant/*` @@ -61,6 +71,18 @@ Types: [ContentBlock](core-data-structures/core.md) · [TokenUsage](core-data-st Source: [`packages/core/session/src/types.ts:320`](../packages/core/session/src/types.ts) +### `bash/*` + +#### `bash/sandbox-mode` — log-only + +The session's sandbox mode was switched — log-only (like `approval/*`; NOT a surface event, carries no `surfaceOp`): durable and replayable, never in the model transcript. The LAST such event is the session's override (effectiveSandboxMode); who asked for it is derivable from position (an event after the log's last `request/header*` was a runtime switch by the user; see the tool layer's narrator). + +```ts persistence-catalog +'bash/sandbox-mode': { mode: SandboxMode } +``` + +Source: [`packages/bash/bash/src/session-mode.ts:31`](../packages/bash/bash/src/session-mode.ts) + ### `compact/*` #### `compact/end` — log-only diff --git a/packages/approval/README.md b/packages/approval/README.md index 3778e2012e..9876646d23 100644 --- a/packages/approval/README.md +++ b/packages/approval/README.md @@ -4,6 +4,6 @@ The asking half of permission handling: one seam through which the harness puts | Package | Role | ctx key | |---|---|---| -| `approval/` | The `ApprovalService` mechanism (waterfall dispatch, cancellation, audit events) + the vocabulary (`ApprovalRequest`, `ApprovalOutcome`, `ApprovalRequestId`) | `ctx.approval` | +| `approval/` | The `ApprovalService` mechanism (waterfall dispatch, cancellation, audit events) + the vocabulary (`ApprovalRequest`, `ApprovalOutcome`, `ApprovalRequestId`) + the per-session policy tier (`ApprovalPolicy` `'ask'`/`'never'`, the `'approval/policy'` event fold, the prepend gate — [sandbox RFC § Per-session mode switching](../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)) | `ctx.approval` | -Answerers live with their owners, not here: tests answer with inline scripted listeners, and the ACP bridge answerer is the staged first real one. Consumer today: [`core/tools`](../core/tools/) routes `tools/pre-execute`'s `ask` through the seam (degrading to deny when it is not mounted). +Answerers live with their owners, not here: the ACP bridge ([`ui/acp`](../ui/acp/)) answers for the editor sessions it owns (and switches each session's policy over ACP config options); tests answer with inline scripted listeners. Consumers today: [`core/tools`](../core/tools/) routes `tools/pre-execute`'s `ask` through the seam (degrading to deny when it is not mounted), and the bash tool's sandbox escalation gate ([`bash/tool-bash`](../bash/tool-bash/), [sandbox RFC § Escalation](../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)). diff --git a/packages/approval/approval/README.md b/packages/approval/approval/README.md index 0aaf245f2b..4a652b4464 100644 --- a/packages/approval/approval/README.md +++ b/packages/approval/approval/README.md @@ -6,6 +6,8 @@ The contract in one line: `ctx.approval.request(req)` puts exactly one question The service is the mechanism, answerers are the policy. Answerers are `approval/request` waterfall listeners occupying a single decision slot: answer for an agent you own by returning an outcome without calling `next()`, or delegate an agent you don't recognize by calling `next()` — the chain's built-in default is `unavailable`, so a deployment with no answerer (headless, CI) fails closed with zero configuration. Registration order across sibling plugins is not load-order deterministic; compose one terminal answerer per deployment and use `prepend` listeners only for decide-or-delegate gates. -One seam serves both ask paths of [the sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md): the `tools/pre-execute` `ask` decision (routed by [`@deepseek-ai/dsh-tools`](../../core/tools/) when this service is mounted; degrading to deny when it is not), and the sandbox post-denial escalated retry that RFC stages (the asker will live in the bash tool layer). The full design: [the approval-seam RFC](../../../docs/rfc/proposed/feature/2026-07-06-approval-seam.md). +The seam also owns the per-session POLICY tier ([the sandbox RFC § Per-session mode switching](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)): `ApprovalPolicy` is `'ask'` (delegate to the answerers — the prior behavior exactly) or `'never'` (deterministically reject without prompting anyone; the strict CI/unattended stance), with `effective = fold(the session's 'approval/policy' events, last one wins) ?? Config.policy` — the session log is the store, written only through `setApprovalPolicy(session, policy)`. The service decides `'never'` inside `request()` itself, before dispatching the waterfall (`'never'` → `'rejected'` with the audit pair still landing; no listener registration, including a later `prepend`, can precede it), states `'never'` — and only `'never'` — in a per-agent prompt section (a "you will be prompted" promise under `'ask'` would overclaim what a headless composition can do; the section scope activates only when `systemPrompt` is composed), and narrates a policy switch to the model in at most one coalesced `agent/pre-step` notice, attributed positionally (an override event after the log's last `request/header*` reads `changed by the user`; a config drift reads `changed by the operator/config`). -No answerer ships in this change — every ask fails closed to `unavailable` until one is composed (the ACP bridge answerer is the staged first one). The audit events are log-only session records — the model only ever sees the tool result the asker derives from the outcome. +One seam serves both ask paths of [the sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md): the `tools/pre-execute` `ask` decision (routed by [`@deepseek-ai/dsh-tools`](../../core/tools/) when this service is mounted; degrading to deny when it is not), and the sandbox post-denial escalated retry (the bash tool's `sandbox_permissions` gate in [`@deepseek-ai/dsh-tool-bash`](../../bash/tool-bash/) — [the sandbox RFC § Escalation](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)). The full design: [the approval-seam RFC](../../../docs/rfc/proposed/feature/2026-07-06-approval-seam.md). + +Answerers today: the ACP bridge ([`@deepseek-ai/dsh-acp`](../../ui/acp/)) forwards to the editor's `session/request_permission` prompt for agents it owns. The audit events are log-only session records — the model only ever sees the tool result the asker derives from the outcome. diff --git a/packages/approval/approval/package.json b/packages/approval/approval/package.json index 6120e4d4e9..38ce9533b1 100644 --- a/packages/approval/approval/package.json +++ b/packages/approval/approval/package.json @@ -26,13 +26,18 @@ "@deepseek-ai/dsh-brand": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-session": "^0.0.1", + "@deepseek-ai/dsh-system-prompt": "^0.0.1", "cordis": "^4.0.0-rc.6" }, + "dependencies": { + "schemastery": "^3.18.0" + }, "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-brand": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", + "@deepseek-ai/dsh-system-prompt": "workspace:^", "cordis": "^4.0.0-rc.6" } } diff --git a/packages/approval/approval/src/index.ts b/packages/approval/approval/src/index.ts index 92b2a0b763..2f819e83e2 100644 --- a/packages/approval/approval/src/index.ts +++ b/packages/approval/approval/src/index.ts @@ -20,15 +20,27 @@ * model-visible transcript: the model only ever sees the tool result the * caller derives from the outcome. * + * The seam also owns the per-session POLICY tier (the sandbox RFC § Per-session mode switching): + * `effective = fold(the session's 'approval/policy' events, last one wins) + * ?? config.policy` — the session log is the store, so an override survives + * restart by replay. The service resolves `'never'` sessions to + * `'rejected'` inside `request()` before dispatching any answerer (no + * registration order, including a later `prepend`, can precede it); a prompt section states `'never'` + * (and only `'never'` — an availability promise is unknowable without + * asking); an `agent/pre-step` narrator explains a switch to the model in at + * most one coalesced notice per step. + * * @module @deepseek-ai/dsh-approval */ import { randomUUID } from 'node:crypto' import { Context, Service } from 'cordis' +import z from 'schemastery' import type { Branded } from '@deepseek-ai/dsh-brand' import type { Agent } from '@deepseek-ai/dsh-agent' import type { CallId } from '@deepseek-ai/dsh-llm' -import type {} from '@deepseek-ai/dsh-session' +import type { Session, SessionEvent } from '@deepseek-ai/dsh-session' +import type {} from '@deepseek-ai/dsh-system-prompt' declare module 'cordis' { interface Context { @@ -78,6 +90,15 @@ declare module '@deepseek-ai/dsh-session' { id: ApprovalRequestId outcome: ApprovalOutcome } + /** + * The session's approval policy was switched — log-only, durable, + * replayable, never in the model transcript (the model learns the policy + * from the prompt section and the narrator's notices). The LAST such + * event is the session's override ({@link effectiveApprovalPolicy}); + * who asked for it is derivable from position (an event after the log's + * last `request/header*` was a runtime switch by the user). + */ + 'approval/policy': { policy: ApprovalPolicy } } } @@ -113,6 +134,53 @@ export type ApprovalOutcome = 'allowed-once' | 'rejected' | 'cancelled' | 'unava /** Every {@link ApprovalOutcome}, for runtime normalization of answerer returns. */ const OUTCOMES: readonly ApprovalOutcome[] = ['allowed-once', 'rejected', 'cancelled', 'unavailable'] +/** + * A session's approval policy — what happens to an {@link ApprovalService} + * ask BEFORE any interactive answerer sees it: + * + * - `'ask'` (the default) — delegate to the composed answerers; with none + * composed the chain falls through to the fail-closed `'unavailable'` + * (exactly today's behavior). + * - `'never'` — never prompt anyone: every ask resolves `'rejected'` + * deterministically. The strict headless stance (CI, unattended runs) and + * the only policy value stated in the system prompt — unlike `'ask'`, its + * outcome is knowable without asking, so stating it cannot overclaim. + */ +export type ApprovalPolicy = 'ask' | 'never' + +/** Every {@link ApprovalPolicy}, for option advertisement and runtime validation of untrusted policy strings. */ +export const APPROVAL_POLICIES: readonly ApprovalPolicy[] = ['ask', 'never'] + +/** + * The prompt sentence stating a `'never'` policy — visibility for the one + * deterministic policy (see {@link ApprovalPolicy}), and the narrator's parse + * candidate for "what was the model last told": a folded `request/header*` + * system text containing it was assembled under `'never'`; one without it + * (but with any header at all) was assembled under `'ask'`, which states + * nothing. The exact-wording compatibility surface (writer and parser) lives + * entirely in this module; the bash tool description's escalation teaching + * additionally defers to the sentence's opening claim by meaning (see + * `dsh-tool-bash`), so keep the sentence opening with the approvals-disabled + * statement. + */ +const NEVER_SENTENCE = 'Approval prompts are disabled in this session: actions that require approval are rejected automatically — do not request sandbox escalation (do not set `sandbox_permissions`).' + +/** + * The session's approval-policy override: the last `approval/policy` event in + * the log, or undefined when the session never switched (callers apply the + * plugin's configured default). The pure fold — resume needs no catch-up + * machinery because replaying the log IS the state. + * @param events - session events in log order (other event types are skipped). + * @returns the policy of the last switch event, or undefined without one. + */ +export function effectiveApprovalPolicy(events: readonly SessionEvent[]): ApprovalPolicy | undefined { + for (let index = events.length - 1; index >= 0; index -= 1) { + const event = events[index] as SessionEvent + if (event.type === 'approval/policy') return event.data.policy + } + return undefined +} + /** * Whether the log currently sits inside an open turn (a `turn/start` not yet * closed by a `turn/end`) — the {@link ApprovalService.request} precondition. @@ -129,6 +197,19 @@ function hasOpenTurn(events: readonly SessionEvent[]): boolean { return false } +/** + * THE write path for a session's approval-policy override: appends exactly + * one `approval/policy` event — the switch IS its event; nothing mutates + * policy state out of band. Takes effect on the session's next ask and next + * prompt assembly (the consumers fold on every read). + * @param session - the session the override belongs to. + * @param policy - the policy every subsequent ask for this session resolves + * under (until the next switch). + */ +export function setApprovalPolicy(session: Session, policy: ApprovalPolicy): void { + session.append('approval/policy', { policy }) +} + /** * One concrete permission question. Identifies the action precisely enough * for an answerer to present it and for the audit events to reconstruct what @@ -159,15 +240,100 @@ export interface ApprovalRequest { signal?: AbortSignal } +/** Plugin config. All optional — `static Config` supplies the defaults. */ +export interface Config { + /** + * The deployment's default {@link ApprovalPolicy} for sessions without an + * `approval/policy` override — `'ask'` delegates to the composed answerers + * (fail-closed with none); `'never'` auto-rejects every ask without + * prompting (the deterministic CI/unattended stance). + */ + policy?: ApprovalPolicy +} + /** * The `ctx.approval` service: dispatches {@link ApprovalRequest}s to the * `approval/request` waterfall and audits every ask/outcome pair to the * requesting agent's session log. Stateless between requests — grants are * returned to the caller, never stored here. + * + * Owns the policy tier too (`effective = fold(the session's 'approval/policy' + * events) ?? config.policy`): a PREPENDED decide-or-delegate gate resolves + * `'never'` sessions to `'rejected'` before any interactive answerer is + * prompted, a per-agent prompt section states a `'never'` policy (and only + * that one — an `'ask'` promise could overclaim an answerer that headless + * compositions do not have), and an `agent/pre-step` narrator injects at most + * one coalesced notice when a session's effective policy moved past what the + * model was last told. */ export class ApprovalService extends Service { - constructor(ctx: Context) { + static Config: z = z.object({ + policy: z.union(['ask', 'never'] as const).default('ask'), + }) + + constructor(ctx: Context, public config: Config) { super(ctx, 'approval') + + const effective = (agent: Agent): ApprovalPolicy => this.effectivePolicy(agent) + + // Visibility layer 1, scoped on the prompt registry so headless + // compositions mount the seam without it: state the one deterministic + // policy per session. 'ask' renders nothing — stating "you will be + // asked" would overclaim in a composition with no answerer, and absence + // under any logged header is exactly how the narrator reads 'ask' back. + ctx.inject(['systemPrompt'], (scope: Context) => { + scope.systemPrompt.section({ + name: 'approval:policy', + order: 115, + text: (context) => { + const agent = context.agent + // A bare assemble() (tests, diagnostics) has no session to state. + if (agent === undefined) return '' + return effective(agent) === 'never' ? NEVER_SENTENCE : '' + }, + }) + }) + + // Visibility layer 2: the boundary narrator. pre-step runs after prompt + // assembly but before the request history is derived, so the notice is + // seen by THIS step's request: idle-time flip-flops coalesce at the + // turn's first step (net-zero → nothing), and a mid-turn switch is + // narrated no later than the next step. What each session was last told + // is in-memory with a log-derived fallback (the folded header's system + // text), so restarts lose nothing. Attribution is positional: an + // override event after the log's last `request/header*` was a runtime + // switch by the user; otherwise the configured default moved under the + // session (operator/config). + const narrated = new WeakMap() + ctx.on('agent/pre-step', (agent) => { + const session = agent.session + const events = session.events + let overrideIndex = -1 + let headerIndex = -1 + for (let index = events.length - 1; index >= 0 && (overrideIndex < 0 || headerIndex < 0); index -= 1) { + const event = events[index] as (typeof events)[number] + if (overrideIndex < 0 && event.type === 'approval/policy') { + overrideIndex = index + } else if (headerIndex < 0 && (event.type === 'request/header' || event.type === 'request/header-delta')) { + headerIndex = index + } + } + // Same fold effectivePolicy performs — override is scanned here anyway + // for POSITIONAL attribution; the default lives once, in the method. + const current = this.effectivePolicy(agent) + const header = session.requestHeader() + const told = narrated.get(session) + ?? (header === undefined ? undefined : header.system?.includes(NEVER_SENTENCE) === true ? 'never' : 'ask') + narrated.set(session, current) + // Cold start (nothing ever told) narrates nothing — the section about + // to go out states the truth, and there is no delta to explain. + if (told === undefined || told === current) return + const cause = overrideIndex > headerIndex ? 'changed by the user' : 'changed by the operator/config' + agent.inject( + [{ type: 'text', text: `The approval policy changed from "${told}" to "${current}" (${cause}).` }], + { source: { kind: 'plugin', plugin: 'approval' } }, + ) + }) } /** @@ -205,9 +371,26 @@ export class ApprovalService extends Service { return outcome } + /** + * The session's effective policy: its own `approval/policy` fold, else the + * configured default (the schema already defaulted an omitted policy to + * `'ask'`; the `??` only narrows the optional-input TYPE). + * @param agent - the agent whose session's policy applies. + * @returns the policy every ask for this agent resolves under right now. + */ + private effectivePolicy(agent: Agent): ApprovalPolicy { + return effectiveApprovalPolicy(agent.session.events) ?? this.config.policy ?? 'ask' + } + /** Dispatch the waterfall, contained and raced against `req.signal`. */ private async decide(req: ApprovalRequest): Promise { if (req.signal?.aborted) return 'cancelled' + // The 'never' policy is decided HERE, before any dispatch: a listener + // registered with `prepend: true` after this service mounts would sit + // ahead of any gate LISTENER, so a listener-shaped gate cannot keep the + // documented promise that 'never' rejects deterministically regardless + // of registration order — only the service's own request path can. + if (this.effectivePolicy(req.agent) === 'never') return 'rejected' // Enter the promise chain BEFORE dispatching: a listener that throws // SYNCHRONOUSLY (before its first await) must land in the same rejection // path as an async one — `Promise.resolve(call())` would let it escape diff --git a/packages/approval/approval/tests/approval.spec.ts b/packages/approval/approval/tests/approval.spec.ts index c356723438..a732a3161c 100644 --- a/packages/approval/approval/tests/approval.spec.ts +++ b/packages/approval/approval/tests/approval.spec.ts @@ -1,9 +1,11 @@ -import { describe, expect, it } from 'vitest' +import { describe, expect, it, vi } from 'vitest' import { Context } from 'cordis' import type { Agent } from '@deepseek-ai/dsh-agent' import { CallId } from '@deepseek-ai/dsh-llm' +import { Session, SessionId } from '@deepseek-ai/dsh-session' import type { SessionEvent } from '@deepseek-ai/dsh-session' -import ApprovalService, { ApprovalOutcome, ApprovalRequest } from '@deepseek-ai/dsh-approval' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ApprovalService, { ApprovalOutcome, ApprovalRequest, effectiveApprovalPolicy, setApprovalPolicy } from '@deepseek-ai/dsh-approval' /** * A minimal Agent stand-in — the service only reaches `agent.session.append` @@ -201,3 +203,169 @@ describe('ApprovalService.request', () => { }) }) +describe('approval policy (the approval/policy fold)', () => { + const NEVER_SENTENCE = 'Approval prompts are disabled in this session: actions that require approval are rejected automatically — do not request sandbox escalation (do not set `sandbox_permissions`).' + + /** + * An agent stand-in over a REAL Session — gate, section, and narrator fold + * real events; the opened turn satisfies request()'s enclosure precondition. + */ + function sessionAgent(id: string): { agent: Agent; session: Session; injected: string[] } { + const session = new Session(SessionId(id)) + session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) + const injected: string[] = [] + const agent = { + id, + session, + inject: (content: { type: string; text: string }[]) => { injected.push(content[0]?.text ?? '') }, + } as unknown as Agent + return { agent, session, injected } + } + + const preStep = (ctx: Context, agent: Agent): Promise => + ctx.serial('agent/pre-step', agent, 1, 1, '', [], new AbortController().signal) + + /** Append a `request/header` snapshot whose system text is exactly `system`. */ + function appendHeader(session: Session, system: string): void { + session.append('request/header', { header: { config: { model: 'mock' }, system }, reason: 'initial' }) + } + + it('folds to the last event, or undefined without one', () => { + const { session } = sessionAgent('sess-fold') + expect(effectiveApprovalPolicy(session.events)).toBeUndefined() + setApprovalPolicy(session, 'never') + setApprovalPolicy(session, 'ask') + expect(effectiveApprovalPolicy(session.events)).toBe('ask') + expect(session.events.at(-1)).toMatchObject({ type: 'approval/policy', data: { policy: 'ask' } }) + }) + + it('defaults a schema-less construction to ask (the ?? narrows the optional TYPE)', async () => { + // Direct construction bypasses the plugin schema (the SystemPrompt-test + // precedent for covering a defaulted Config field's type-narrowing ??). + const ctx = new Context() + const service = new ApprovalService(ctx, {}) + const { agent } = sessionAgent('sess-bare-config') + ctx.on('approval/request', () => Promise.resolve('allowed-once')) + await expect(service.request({ agent, toolName: 'echo' })).resolves.toBe('allowed-once') + }) + + it('contains an answerer that throws SYNCHRONOUSLY as unavailable', async () => { + const ctx = new Context() + await ctx.plugin(ApprovalService) + const { agent } = sessionAgent('sess-syncthrow') + ctx.on('approval/request', () => { throw new Error('sync bug') }) + await expect(ctx.approval.request({ agent, toolName: 'echo' })).resolves.toBe('unavailable') + }) + + it('a never config rejects deterministically without consulting any answerer', async () => { + const ctx = new Context() + await ctx.plugin(ApprovalService, { policy: 'never' }) + const consulted = vi.fn() + ctx.on('approval/request', (_req, next) => { consulted(); return next() }) + const { agent, session } = sessionAgent('sess-gate-1') + await expect(ctx.approval.request({ agent, toolName: 'bash' })).resolves.toBe('rejected') + expect(consulted).not.toHaveBeenCalled() + // The audit pair still lands on the session log. + expect(session.events.filter(e => e.type === 'approval/asked')).toHaveLength(1) + expect(session.events.filter(e => e.type === 'approval/decided')).toHaveLength(1) + }) + + it('the gate decides FIRST even against an answerer registered before the service (prepend)', async () => { + const ctx = new Context() + ctx.on('approval/request', () => Promise.resolve('allowed-once')) + await ctx.plugin(ApprovalService, { policy: 'never' }) + const { agent } = sessionAgent('sess-gate-2') + await expect(ctx.approval.request({ agent, toolName: 'bash' })).resolves.toBe('rejected') + }) + + it('never is unbypassable even by an answerer PREPENDED after the service mounts', async () => { + // Cordis prepend unshifts ahead of every existing listener, including + // any gate LISTENER the service could register — which is exactly why + // the 'never' decision lives inside request() instead. The eager grant + // below must never be consulted. + const ctx = new Context() + await ctx.plugin(ApprovalService, { policy: 'never' }) + const consulted = vi.fn() + ctx.on('approval/request', () => { consulted(); return Promise.resolve('allowed-once') }, { prepend: true }) + const { agent, appended } = fakeAgent() + await expect(ctx.approval.request(requestOf(agent))).resolves.toBe('rejected') + expect(consulted).not.toHaveBeenCalled() + expect(appended.map(e => e.type)).toEqual(['approval/asked', 'approval/decided']) + }) + + it('a session override outranks the configured default, in both directions', async () => { + const ctx = new Context() + await ctx.plugin(ApprovalService, { policy: 'never' }) + ctx.on('approval/request', () => Promise.resolve('allowed-once')) + const { agent, session } = sessionAgent('sess-gate-3') + setApprovalPolicy(session, 'ask') + await expect(ctx.approval.request({ agent, toolName: 'bash' })).resolves.toBe('allowed-once') + setApprovalPolicy(session, 'never') + await expect(ctx.approval.request({ agent, toolName: 'bash' })).resolves.toBe('rejected') + }) + + it('states never (and only never) in the prompt, per session', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ApprovalService) + const askAgent = sessionAgent('sess-sect-ask').agent + const { agent: neverAgent, session } = sessionAgent('sess-sect-never') + setApprovalPolicy(session, 'never') + const sectionFor = async (context: object) => + (await ctx.systemPrompt.assemble(context)).sections.find(s => s.name === 'approval:policy')?.text + expect(await sectionFor({ agent: askAgent })).toBe('') + expect(await sectionFor({ agent: neverAgent })).toBe(NEVER_SENTENCE) + // A bare assemble (no agent) has no session to state. + expect(await sectionFor({})).toBe('') + }) + + it('narrates nothing cold, once per coalesced switch (user wording), and idempotently', async () => { + const ctx = new Context() + await ctx.plugin(ApprovalService) + const { agent, session, injected } = sessionAgent('sess-narr-1') + await preStep(ctx, agent) + expect(injected).toEqual([]) + setApprovalPolicy(session, 'never') + setApprovalPolicy(session, 'ask') + setApprovalPolicy(session, 'never') + await preStep(ctx, agent) + expect(injected).toEqual(['The approval policy changed from "ask" to "never" (changed by the user).']) + await preStep(ctx, agent) + expect(injected).toHaveLength(1) + setApprovalPolicy(session, 'ask') + setApprovalPolicy(session, 'never') + await preStep(ctx, agent) + expect(injected).toHaveLength(1) + }) + + it('reads what the model was told back from the folded header text after a restart', async () => { + // A session whose last request carried the never sentence resumes under + // an ask default: the narrator attributes the change to the operator. + const ctx = new Context() + await ctx.plugin(ApprovalService) + const { agent, session, injected } = sessionAgent('sess-narr-2') + appendHeader(session, `persona\n\n${NEVER_SENTENCE}`) + await preStep(ctx, agent) + expect(injected).toEqual(['The approval policy changed from "never" to "ask" (changed by the operator/config).']) + }) + + it('narrates a config default drift over a sentence-less header (told = ask by absence)', async () => { + const ctx = new Context() + await ctx.plugin(ApprovalService, { policy: 'never' }) + const { agent, session, injected } = sessionAgent('sess-narr-3') + appendHeader(session, 'persona only') + await preStep(ctx, agent) + expect(injected).toEqual(['The approval policy changed from "ask" to "never" (changed by the operator/config).']) + }) + + it('a pinned override survives a default change silently', async () => { + const ctx = new Context() + await ctx.plugin(ApprovalService, { policy: 'never' }) + const { agent, session, injected } = sessionAgent('sess-narr-4') + appendHeader(session, 'persona only') + setApprovalPolicy(session, 'ask') + appendHeader(session, 'persona only') + await preStep(ctx, agent) + expect(injected).toEqual([]) + }) +}) diff --git a/packages/bash/bash/README.md b/packages/bash/bash/README.md index e245148e93..5a1aff3588 100644 --- a/packages/bash/bash/README.md +++ b/packages/bash/bash/README.md @@ -30,8 +30,8 @@ Implementations subclass `BashExecutor`, implement the abstract methods, and cal ## Vocabulary -`BashExecRequest` (command, workdir?, timeoutMs?, signal?, stdin?, env?, owner?, sandboxMode?) resolves to `BashExecSpec` (command, workdir, timeoutMs, signal?, stdin?, env?, owner, sandboxMode) before execution; `owner` and `sandboxMode` are optional on the request and **required-but-nullable** on the resolved spec, so a forgotten one is a visible `undefined` rather than a silently-absent property. `sandboxMode` is the explicit per-call sandbox-policy input (the staged escalation and per-session overrides of [the sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md) ride it); a sandboxing executor's `resolve()` stamps its configured default when the request carries none, and a non-sandboxing executor carries the field verbatim and confines nothing. +`BashExecRequest` (command, workdir?, timeoutMs?, signal?, stdin?, env?, owner?, sandboxMode?) resolves to `BashExecSpec` (command, workdir, timeoutMs, signal?, stdin?, env?, owner, sandboxMode) before execution; `owner` and `sandboxMode` are optional on the request and **required-but-nullable** on the resolved spec, so a forgotten one is a visible `undefined` rather than a silently-absent property. `sandboxMode` is the explicit per-call sandbox-policy input: an escalation grant a human just issued ([the sandbox RFC § Escalation](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md), which outranks) or the session's standing override ([the sandbox RFC § Per-session mode switching](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)); a sandboxing executor's `resolve()` stamps its configured default when the request carries none, and a non-sandboxing executor carries the field verbatim and confines nothing. -The task id (`BashTaskId`) and the `owner` token (`OwnerToken`) are [branded](../../util/brand) — `OwnerToken` is a DISTINCT brand from `SessionId` (the seam never imports `dsh-session`; the `dsh-tool-bash` consumer is the single boundary that casts its `SessionId` into one). `run()` returns `BashRunResult` (exitCode, signal, timedOut, aborted, timeoutMs, stdout/stderr as `CollectedOutput`) and `start()`/`readOutput()` use `BashTask`/`BashTaskRead` for the background side. A sandboxing executor additionally stamps `sandbox` result facts on results and settled tasks (`BashSandboxInfo`: the mode it executed under, the conservative `denied` classification, and — for confined modes — the backend's `enforcement` completeness); the mode/enforcement vocabulary is owned by the [`dsh-sandbox`](../../sandbox/sandbox/) seam, and the facts are documented in [core-data-structures/bash.md](../../../docs/core-data-structures/bash.md). See `src/types.ts` for the full contracts. +The seam also owns the per-session mode override vocabulary (the sandbox RFC § Per-session mode switching): the log-only `'bash/sandbox-mode'` session event, the pure fold `effectiveSandboxMode(events)` (last event wins; `undefined` means "apply the executor default"), and THE write path `setSandboxMode(session, mode)` — the session log is the store, so an override survives restart by replay and two sessions can never see each other's mode. Writers must respect turn-enclosure: the ACP bridge anchors an idle switch at the next turn rather than appending between turns. The task id (`BashTaskId`) and the `owner` token (`OwnerToken`) are [branded](../../util/brand) — `OwnerToken` is a DISTINCT brand from `SessionId` (the seam never imports `dsh-session`; the `dsh-tool-bash` consumer is the single boundary that casts its `SessionId` into one). `run()` returns `BashRunResult` (exitCode, signal, timedOut, aborted, timeoutMs, stdout/stderr as `CollectedOutput`) and `start()`/`readOutput()` use `BashTask`/`BashTaskRead` for the background side. A sandboxing executor additionally stamps `sandbox` result facts on results and settled tasks (`BashSandboxInfo`: the mode it executed under, the conservative `denied` classification, and — for confined modes — the backend's `enforcement` completeness); the mode/enforcement vocabulary is owned by the [`dsh-sandbox`](../../sandbox/sandbox/) seam, and the facts are documented in [core-data-structures/bash.md](../../../docs/core-data-structures/bash.md). See `src/types.ts` for the full contracts. `stdin` and `env` are set by in-process plugins (the hooks bridges, native plugins) to feed a hook command its JSON payload on stdin and its `CLAUDE_PROJECT_DIR`/`CLAUDE_PLUGIN_ROOT` env. The model-facing `dsh-tool-bash` tool does not expose them as parameters — a model already has equivalent power through shell syntax (`FOO=bar cmd`, a heredoc), so they would be redundant tool params. This is not a security boundary: the implementation's credential scrub (not these fields) is what keeps the harness's ambient secrets out of a spawned command. They are plain optionals on the resolved spec (unlike `owner`'s required-but-nullable): a missing one means "none", the safe default. See [the bash-stdin-env RFC](../../../docs/rfc/implemented/architecture/2026-06-30-bash-stdin-env-trusted-plugin-surface.md). diff --git a/packages/bash/bash/src/index.ts b/packages/bash/bash/src/index.ts index 396249d3d7..3b28756078 100644 --- a/packages/bash/bash/src/index.ts +++ b/packages/bash/bash/src/index.ts @@ -19,6 +19,7 @@ import type { SandboxMode } from '@deepseek-ai/dsh-sandbox' import type { BashExecRequest, BashExecSpec, BashRunResult, BashTask, BashTaskId, BashTaskListener, BashTaskRead, OwnerToken } from './types.ts' export { BashTaskId, OwnerToken } from './types.ts' +export { SANDBOX_MODES, effectiveSandboxMode, setSandboxMode } from './session-mode.ts' export type { BashExecRequest, BashExecSpec, diff --git a/packages/bash/bash/src/session-mode.ts b/packages/bash/bash/src/session-mode.ts new file mode 100644 index 0000000000..03ad6e3d7c --- /dev/null +++ b/packages/bash/bash/src/session-mode.ts @@ -0,0 +1,65 @@ +/** + * Per-session sandbox-mode override: the session log as the store. A runtime + * switch (an ACP `session/set_config_option`, a test scenario) is recorded as + * one `bash/sandbox-mode` event on the session it applies to; + * `effective = fold(events) ?? the executor's configured default`, so an + * override survives restart by replay, two sessions can never see each + * other's state, and there is no external config store. The event is + * log-only (the `approval/*` precedent): the model learns the mode from the + * prompt section and the boundary notices in `@deepseek-ai/dsh-tool-bash`, + * never from the event itself. EXECUTION honors the fold in the tool layer — + * it stamps the effective mode onto each call's `BashExecRequest.sandboxMode` + * (weakest-precedence: an escalation grant for the call outranks it) — the + * executor itself stays a config-fixed default plus per-call overrides. + * + * @module dsh-bash/session-mode + */ + +import type { Session, SessionEvent } from '@deepseek-ai/dsh-session' +import type { SandboxMode } from '@deepseek-ai/dsh-sandbox' + +declare module '@deepseek-ai/dsh-session' { + interface SessionEventMap { + /** + * The session's sandbox mode was switched — log-only (like `approval/*`; + * NOT a surface event, carries no `surfaceOp`): durable and replayable, + * never in the model transcript. The LAST such event is the session's + * override ({@link effectiveSandboxMode}); who asked for it is derivable + * from position (an event after the log's last `request/header*` was a + * runtime switch by the user; see the tool layer's narrator). + */ + 'bash/sandbox-mode': { mode: SandboxMode } + } +} + +/** Every {@link SandboxMode}, for option advertisement and runtime validation of untrusted mode strings. */ +export const SANDBOX_MODES: readonly SandboxMode[] = ['read-only', 'workspace-write', 'danger-full-access'] + +/** + * The session's sandbox-mode override: the last `bash/sandbox-mode` event in + * the log, or undefined when the session never switched (callers apply the + * executor's configured default). The pure fold — resume needs no catch-up + * machinery because replaying the log IS the state. + * @param events - session events in log order (other event types are skipped). + * @returns the mode of the last switch event, or undefined without one. + */ +export function effectiveSandboxMode(events: readonly SessionEvent[]): SandboxMode | undefined { + for (let index = events.length - 1; index >= 0; index -= 1) { + const event = events[index] as SessionEvent + if (event.type === 'bash/sandbox-mode') return event.data.mode + } + return undefined +} + +/** + * THE write path for a session's sandbox-mode override: appends exactly one + * `bash/sandbox-mode` event — the switch IS its event; nothing mutates mode + * state out of band. Takes effect on the session's next bash call and next + * prompt assembly (the consumers fold on every read). + * @param session - the session the override belongs to. + * @param mode - the mode every subsequent bash call in this session runs + * under (until the next switch). + */ +export function setSandboxMode(session: Session, mode: SandboxMode): void { + session.append('bash/sandbox-mode', { mode }) +} diff --git a/packages/bash/tool-bash/README.md b/packages/bash/tool-bash/README.md index a45962e29c..1d2b646add 100644 --- a/packages/bash/tool-bash/README.md +++ b/packages/bash/tool-bash/README.md @@ -17,7 +17,7 @@ The plugin also contributes the `tool:bash` prompt section (order 105) — the c | `timeoutMs` | number | Timeout override in milliseconds. The executor applies its configured default and cap. | | `workdir` | string | Working directory for this call. Defaults to the calling agent's session cwd (`session.header.cwd`) so each session runs in its own workspace; a relative `workdir` is resolved against that session cwd. | | `run_in_background` | boolean | Return a task id immediately; no timeout applies. | -| `sandbox_permissions` | string enum | ADVERTISED ONLY when the mounted executor sandboxes (`ctx.bash.sandboxMode` reports a confining default): the strictly wider mode a denied command needs (`read-only` offers `workspace-write`/`danger-full-access`; `workspace-write` offers `danger-full-access`; nothing above `danger-full-access`, so the fields vanish). | +| `sandbox_permissions` | string enum | ADVERTISED ONLY when the mounted executor sandboxes (`ctx.bash.sandboxMode` reports a confining default): the wider mode a denied command needs, from the closed target vocabulary `workspace-write`/`danger-full-access` (never cut down to the executor's default — the effective mode is per-session; strict widening is checked at execution against it, and a non-widening request fails without prompting anyone). | | `justification` | string | Required together with `sandbox_permissions` (each without the other is a validation error): one sentence for the user explaining why this exact command needs the wider access. | `command`, `workdir`, and `timeoutMs` are resolved against the executor's config defaults via `ctx.bash.resolve()` before execution, so the executor seam (`BashExecSpec`) receives explicit `workdir`/`timeoutMs` values. The workdir default is applied in the tool layer (from the calling agent's `session.header.cwd`) BEFORE `resolve()` — the per-session cwd must come from `exec.agent`, since N sessions share one executor; only when no session cwd is available does the executor fall back to its own config / `process.cwd()`. @@ -52,5 +52,8 @@ The `BashExecRequest` seam carries optional `stdin` and `env`, used by the hooks Commands run with the executor's full authority unless a sandboxing executor ([`dsh-bash-sandbox`](../bash-sandbox/)) confines them — the deny-only sandbox reports denials as result facts, rendered here as the denial marker; per-call allow/deny/ask policy is the `tools/pre-execute` waterfall (see docs/architecture.md). -On top of a denial sits the escalation gate ([the sandbox RFC § Escalation](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)): an escalating call (`sandbox_permissions` + `justification`) resolves [`ctx.approval`](../../approval/approval/README.md) BEFORE anything executes — `allowed-once` stamps the granted mode onto the bash request as the seam-level `sandboxMode` override (that one call runs, classifies, and reports under the wider mode; its neighbors keep the executor's default), while `rejected`/`cancelled`/`unavailable` and the no-service / no-agent paths each fail closed with their own error text and execute nothing. The seam is consumed opportunistically (`ctx.get('approval')`, the dsh-tools ask-routing pattern); the grant is consumed by the very call that asked, and nothing is stored. The static description teaches — and a denied result itself prompts, via the escalation-available marker appended exactly when the fields are advertised — the SAME-TURN flow: on a denial a wider mode would cure, retry the exact command once with `sandbox_permissions` (the narrowest mode that suffices) + `justification` immediately, without detouring through chat (the approval prompt IS the user's consent); never speculatively — an escalation is grounded in a real denial (up-front only when the session already denied the same access), a prompt-stated approvals-disabled policy turns the exception off entirely, and a rejected escalation is final for that command. +On top of a denial sits the escalation gate ([the sandbox RFC § Escalation](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)): an escalating call (`sandbox_permissions` + `justification`) resolves [`ctx.approval`](../../approval/approval/README.md) BEFORE anything executes — `allowed-once` stamps the granted mode onto the bash request as the seam-level `sandboxMode` override (that one call runs, classifies, and reports under the wider mode; its neighbors keep the session's effective mode), while `rejected`/`cancelled`/`unavailable` and the no-service / no-agent paths each fail closed with their own error text and execute nothing. The seam is consumed opportunistically (`ctx.get('approval')`, the dsh-tools ask-routing pattern); the grant is consumed by the very call that asked, and nothing is stored. The static description teaches — and a denied result itself prompts, via the escalation-available marker appended exactly when the fields are advertised — the SAME-TURN flow: on a denial a wider mode would cure, retry the exact command once with `sandbox_permissions` (the narrowest mode that suffices) + `justification` immediately, without detouring through chat (the approval prompt IS the user's consent); never speculatively — an escalation is grounded in a real denial (up-front only when the session already denied the same access), a prompt-stated approvals-disabled policy turns the exception off entirely, and a rejected escalation is final for that command. +## Per-session mode switching + +Under a sandboxing executor this plugin makes the session's standing mode override ([the sandbox RFC § Per-session mode switching](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md); the `bash/sandbox-mode` fold owned by [`dsh-bash`](../bash/README.md)) real at EXECUTION: every call is stamped `escalation grant > session override > undefined` onto `BashExecRequest.sandboxMode`; without either, the executor's `resolve()` applies its configured default. Nothing is stamped under a non-sandboxing executor (nothing would honor it) or for an agent-less caller (no session to fold). The prompt deliberately does NOT state the mode and a switch is not narrated: a standing declaration teaches the model to refuse preemptively, while the denial marker already names the mode the command ran under exactly when the boundary is hit — behavior, not belief, carries the state. diff --git a/packages/bash/tool-bash/src/index.ts b/packages/bash/tool-bash/src/index.ts index da6c5c3325..25775a26b7 100644 --- a/packages/bash/tool-bash/src/index.ts +++ b/packages/bash/tool-bash/src/index.ts @@ -41,8 +41,16 @@ * through `ctx.approval` BEFORE anything executes and failing closed on every * unanswerable path. The fields exist only when the mounted executor reports * a confining default (`ctx.bash.sandboxMode`) — a lever is never advertised - * that the composition cannot honor. Per-session mode switching is the - * sandbox RFC's staged follow-up. + * that the composition cannot honor. + * + * Per-session mode switching (the sandbox RFC § Per-session mode switching): a session may carry a + * standing sandbox-mode override — the `bash/sandbox-mode` event fold from + * `@deepseek-ai/dsh-bash` — which this plugin makes real at EXECUTION: each + * call is stamped `escalation grant > session override > executor default`. + * The prompt deliberately does NOT state the mode and no switch is narrated: + * the model learns the boundary from the denial marker (which names the mode + * it ran under) exactly when it matters, instead of preemptively refusing + * work a standing declaration would discourage. * * @module @deepseek-ai/dsh-tool-bash */ @@ -59,7 +67,7 @@ import type {} from '@deepseek-ai/dsh-system-prompt' // stays optional at runtime, same pattern as dsh-tools' ask routing). import type {} from '@deepseek-ai/dsh-approval' import type { SandboxMode } from '@deepseek-ai/dsh-sandbox' -import { BashTaskId, OwnerToken } from '@deepseek-ai/dsh-bash' +import { BashTaskId, OwnerToken, effectiveSandboxMode } from '@deepseek-ai/dsh-bash' import type { BashRunResult, BashTask, CollectedOutput } from '@deepseek-ai/dsh-bash' export const name = 'tool-bash' @@ -472,6 +480,19 @@ export function apply(ctx: Context): void { const defaultMode = ctx.bash.sandboxMode const escalationModes: readonly SandboxMode[] = defaultMode === undefined ? [] : ESCALATION_TARGETS + /** + * The session's standing mode override for an ordinary (non-escalating) + * call: the `bash/sandbox-mode` fold of the calling agent's log, stamped + * onto the request so EXECUTION follows the same effective mode the prompt + * section states. Weakest precedence — an escalation grant (freshly + * approved for exactly this call) outranks it, and without either the + * executor's `resolve()` applies its configured default. Undefined for a + * non-sandboxing executor (nothing honors it) and for agent-less callers + * (no session to fold). + */ + const sessionOverride = (exec: ToolExecution): SandboxMode | undefined => + defaultMode === undefined || exec.agent === undefined ? undefined : effectiveSandboxMode(exec.agent.session.events) + /** * Resolve a sandbox-escalation request through `ctx.approval` BEFORE * anything executes. Returns the granted mode to stamp onto the bash @@ -493,10 +514,12 @@ export function apply(ctx: Context): void { throw new Error('sandbox_permissions is not available in this composition (no sandboxing executor to escalate)') } // Strict widening is an EXECUTION check against the call's effective - // mode, deliberately not a schema constraint (the enum is the closed - // target vocabulary; the effective mode is per-call truth). A - // non-widening request fails closed here and never prompts a human. - const effectiveMode = defaultMode as SandboxMode + // mode — session override ?? executor default, the same fold ordinary + // calls are stamped with — deliberately not a schema constraint (the + // enum is the closed target vocabulary; the effective mode is per-call + // truth). A non-widening request fails closed here and never prompts a + // human. + const effectiveMode = (sessionOverride(exec) ?? defaultMode) as SandboxMode if (!(WIDER_MODES[effectiveMode] ?? []).includes(mode as SandboxMode)) { throw new Error(`sandbox escalation to "${mode}" is not strictly wider than this call's current "${effectiveMode}" mode`) } @@ -564,9 +587,11 @@ export function apply(ctx: Context): void { // An escalating call resolves approval BEFORE anything executes; every // non-grant outcome throws its distinct error text and runs nothing. // (validateBashArgs pinned the pairing, so the double narrow is exact.) + // An ordinary call carries the session's standing override instead — + // grant > session override > executor default (see sessionOverride). const sandboxMode = args.sandbox_permissions !== undefined && args.justification !== undefined ? await approveEscalation(args.sandbox_permissions, args.justification, exec) - : undefined + : sessionOverride(exec) // Default the workdir to the calling agent's session cwd so each ACP // session runs in its own workspace (see resolveWorkdir); an explicit // model workdir still wins. diff --git a/packages/bash/tool-bash/tests/tools.spec.ts b/packages/bash/tool-bash/tests/tools.spec.ts index 9ae80f28fb..4988713425 100644 --- a/packages/bash/tool-bash/tests/tools.spec.ts +++ b/packages/bash/tool-bash/tests/tools.spec.ts @@ -4,8 +4,9 @@ import { join } from 'node:path' import { describe, expect, it, vi } from 'vitest' import { Context } from 'cordis' import { CallId } from '@deepseek-ai/dsh-llm' -import { BashExecutor, BashTaskId } from '@deepseek-ai/dsh-bash' +import { BashExecutor, BashTaskId, setSandboxMode } from '@deepseek-ai/dsh-bash' import type { BashExecRequest, BashExecSpec, BashRunResult, BashTask, BashTaskRead, OwnerToken } from '@deepseek-ai/dsh-bash' +import { Session, SessionId } from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' import AgentRegistry from '@deepseek-ai/dsh-agent' @@ -1135,7 +1136,7 @@ describe('sandbox rendering', () => { describe('sandbox escalation (sandbox_permissions / justification)', () => { /** Compose the real sandbox stack (passthrough runner) at a given default mode. */ - async function setupSandboxed(mode?: 'read-only' | 'workspace-write' | 'danger-full-access', opts: { approval?: boolean } = {}) { + async function setupSandboxed(mode?: 'read-only' | 'workspace-write' | 'danger-full-access', opts: { approval?: boolean; policy?: 'ask' | 'never' } = {}) { const ctx = new Context() await ctx.plugin(SystemPrompt) await ctx.plugin(ToolRegistry) @@ -1144,7 +1145,7 @@ describe('sandbox escalation (sandbox_permissions / justification)', () => { await ctx.plugin(SandboxBashExecutor, { graceMs: 200, ...mode !== undefined ? { mode } : {} }) const bash = ctx.bash as SandboxBashExecutor bash.internals = { spillDir } - if (opts.approval === true) await ctx.plugin(ApprovalService) + if (opts.approval === true) await ctx.plugin(ApprovalService, opts.policy !== undefined ? { policy: opts.policy } : {}) await ctx.plugin(ToolBash) return { ctx, bash } } @@ -1327,6 +1328,23 @@ describe('sandbox escalation (sandbox_permissions / justification)', () => { expect(text(result)).toContain('unreachable') }) + it('a never policy rejects an escalation deterministically without consulting any answerer', async () => { + // The live-session e.md case: the model requests escalation against a + // 'never' session — the prepend gate answers rejected before any + // interactive answerer, the fail-closed text is the ordinary rejection + // wording, and the audit pair still lands. + const { ctx } = await setupSandboxed('read-only', { approval: true, policy: 'never' }) + const consulted = vi.fn() + ctx.on('approval/request', (_req, next) => { consulted(); return next() }) + const events: Array<{ type: string; data: Record }> = [] + const result = await callAs(ctx, escalationAgent(events), ESCALATE) + expect(result.isError).toBe(true) + expect(text(result)).toContain('the user rejected escalating this command to "workspace-write"') + expect(consulted).not.toHaveBeenCalled() + expect(events.map(e => e.type)).toEqual(['approval/asked', 'approval/decided']) + expect(events[1]?.data).toMatchObject({ outcome: 'rejected' }) + }) + it('a plain call under a sandboxing executor never consults approval', async () => { const { ctx } = await setupSandboxed('read-only', { approval: true }) const asked = vi.fn() @@ -1337,3 +1355,122 @@ describe('sandbox escalation (sandbox_permissions / justification)', () => { expect(asked).not.toHaveBeenCalled() }) }) + +describe('per-session sandbox mode (the bash/sandbox-mode fold)', () => { + /** Compose the real sandbox stack (passthrough runner) at a given default mode. */ + async function setupModal(mode: 'read-only' | 'workspace-write' | 'danger-full-access' = 'read-only', opts: { approval?: boolean } = {}) { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(LocalSandboxProvider, { runnerCommand: PASSTHROUGH_RUNNER }) + await ctx.plugin(SandboxBashExecutor, { graceMs: 200, mode }) + ;(ctx.bash as SandboxBashExecutor).internals = { spillDir } + if (opts.approval === true) await ctx.plugin(ApprovalService) + await ctx.plugin(ToolBash) + return ctx + } + + /** + * An agent stand-in over a REAL Session — the stamping folds real events; + * the opened turn satisfies approval's enclosure precondition on escalating + * calls. + */ + function sessionAgent(id: string): { agent: Agent; session: Session; injected: string[] } { + const session = new Session(SessionId(id)) + session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) + const injected: string[] = [] + const agent = { + id, + session, + inject: (content: { type: string; text: string }[]) => { injected.push(content[0]?.text ?? '') }, + } as unknown as Agent + return { agent, session, injected } + } + + let modeCall = 0 + const callAs = (ctx: Context, agent: Agent | undefined, args: unknown) => + ctx.tools.execute({ callId: CallId(`call-mode-${++modeCall}`), name: 'bash', arguments: args, ...agent ? { agent } : {} }) + + + it('stamps calls with grant > session override > nothing (executor default)', async () => { + const ctx = await setupModal('read-only', { approval: true }) + ctx.on('approval/request', () => Promise.resolve('allowed-once')) + const seen: (string | undefined)[] = [] + const original = ctx.bash.resolve.bind(ctx.bash) + vi.spyOn(ctx.bash, 'resolve').mockImplementation((req) => { + seen.push(req.sandboxMode) + return original(req) + }) + const { agent, session } = sessionAgent('sess-stamp-1') + const run = { command: 'true', description: 'stamp probe' } + await callAs(ctx, agent, run) // no override yet + setSandboxMode(session, 'workspace-write') + await callAs(ctx, agent, run) // standing override + await callAs(ctx, undefined, run) // agent-less caller: no session to fold + await callAs(ctx, agent, { ...run, sandbox_permissions: 'danger-full-access', justification: 'grant outranks override' }) + expect(seen).toEqual([undefined, 'workspace-write', undefined, 'danger-full-access']) + }) + + it('escalates relative to the session effective mode, not the executor default (narrower override)', async () => { + // The blocker scenario: a workspace-write default with a read-only + // override — the sensible escalation is workspace-write, which a + // default-relative ladder could not even express. The static target + // vocabulary advertises it and the execution check accepts it as + // strictly wider than the CALL's effective (overridden) mode. + const ctx = await setupModal('workspace-write', { approval: true }) + ctx.on('approval/request', () => Promise.resolve('allowed-once')) + const seen: (string | undefined)[] = [] + const original = ctx.bash.resolve.bind(ctx.bash) + vi.spyOn(ctx.bash, 'resolve').mockImplementation((req) => { + seen.push(req.sandboxMode) + return original(req) + }) + const { agent, session } = sessionAgent('sess-esc-narrow') + setSandboxMode(session, 'read-only') + const result = await callAs(ctx, agent, { command: 'true', description: 'd', sandbox_permissions: 'workspace-write', justification: 'the override is narrower than the default' }) + expect(result.isError).toBe(false) + expect(seen).toEqual(['workspace-write']) + }) + + it('a danger-full-access default still offers the lever to a narrower-switched session', async () => { + // Under the default-relative ladder these fields VANISHED (nothing is + // wider than the default), stranding a read-only-overridden session + // with no escalation path at all. + const ctx = await setupModal('danger-full-access', { approval: true }) + ctx.on('approval/request', () => Promise.resolve('allowed-once')) + const schema = ctx.tools.schemas().find(t => t.name === 'bash') as unknown as { parameters: { properties: Record } } + expect(schema.parameters.properties['sandbox_permissions']?.enum).toEqual(['workspace-write', 'danger-full-access']) + const { agent, session } = sessionAgent('sess-esc-dfa') + setSandboxMode(session, 'read-only') + const result = await callAs(ctx, agent, { command: 'true', description: 'd', sandbox_permissions: 'workspace-write', justification: 'confined by override under a wide default' }) + expect(result.isError).toBe(false) + }) + + it('rejects a non-widening request against the OVERRIDDEN effective mode without prompting', async () => { + const ctx = await setupModal('read-only', { approval: true }) + const consulted = vi.fn() + ctx.on('approval/request', (_req, next) => { consulted(); return next() }) + const { agent, session } = sessionAgent('sess-esc-nonwide') + setSandboxMode(session, 'danger-full-access') + const result = await callAs(ctx, agent, { command: 'true', description: 'd', sandbox_permissions: 'workspace-write', justification: 'already wider via override' }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('not strictly wider than this call\'s current "danger-full-access" mode') + expect(consulted).not.toHaveBeenCalled() + }) + + it('never stamps an override under a non-sandboxing executor (nothing honors it)', async () => { + const ctx = await setup() + const seen: (string | undefined)[] = [] + const original = ctx.bash.resolve.bind(ctx.bash) + vi.spyOn(ctx.bash, 'resolve').mockImplementation((req) => { + seen.push(req.sandboxMode) + return original(req) + }) + const { agent, session } = sessionAgent('sess-stamp-2') + setSandboxMode(session, 'danger-full-access') + await callAs(ctx, agent, { command: 'true', description: 'plain probe' }) + expect(seen).toEqual([undefined]) + }) + +}) diff --git a/packages/ui/acp/README.md b/packages/ui/acp/README.md index 0820db0cb5..8facac9e0d 100644 --- a/packages/ui/acp/README.md +++ b/packages/ui/acp/README.md @@ -32,11 +32,18 @@ The `initialize` handshake reports a fixed server identity (`agentInfo: { name: | `session/update` | `session/event` | `agent_message_chunk` (text-delta), `agent_thought_chunk` (reasoning-delta), `user_message_chunk` (load replay), `tool_call`/`tool_call_update` (the render intent — a `card`-tagged `ToolCallView`/`ToolResultView` — owned by the TOOL via `presentCall`/`presentResult`, which the bridge switches on to build the wire shape — see Tool-call presentation) | | `elicitation/create` | `ctx.userInteraction.ask()` | maps `ask_user_question` questions to ACP form elicitations; option descriptions are shown in enum titles, `multi_select` uses ACP array enums, optionless requests use a required `custom` field, and a non-empty custom answer overrides any selected choice | | `session/request_permission` | `approval/request` listener | the bridge is the [`ctx.approval`](../../approval/approval/README.md) answerer for the agents it owns: an `ask` (a hook or `tools/pre-execute` plugin) becomes an editor prompt attached to the streamed tool call, offering one-shot `allow_once`/`reject_once` options only; a foreign or call-less request delegates down the answerer chain (fail-closed `unavailable` default). See "Permission prompts" | +| `session/set_config_option` | `setSandboxMode` / `setApprovalPolicy` | per-session knob switching over [session config options](https://agentclientprotocol.com/protocol/session-config-options) — see "Session config options" | ## Multi-session The bridge multiplexes N sessions over one connection. Live sessions are held in a `Map` (forward) with a `WeakMap` reverse map so `agent/*` events — which carry only the `Agent` — demux in O(1). Every `session/event` and `agent/status` is routed strictly to its owning record, so concurrent sessions never cross-settle or interleave their `session/update` notifications. State is per session: one in-flight prompt each, `session/cancel` aborts and settles only its own agent/prompt, and disposal drains every live session in parallel to quiescence. Permission prompts follow the same ownership: the `approval/request` answerer resolves the owning session through the reverse map and prompts only there. +## Session config options + +The bridge advertises one independent `select` per composable knob in the `session/new`/`session/load` responses — `sandbox-mode` (`read-only`/`workspace-write`/`danger-full-access`, category `mode`) iff the mounted executor confines (`ctx.get('bash')?.sandboxMode` defined), `approval-policy` (`ask`/`never`) iff the approval seam is composed — with each session's `currentValue` folded from its OWN log (`effectiveSandboxMode`/`effectiveApprovalPolicy` ?? the composition default), so `session/load` reports a resumed session's overrides with no catch-up machinery. `session/set_config_option` validates the value against the same closed vocabulary, routes to the domain's write path (`setSandboxMode`/`setApprovalPolicy` — ONE log-only event on that session's log), and returns the complete refreshed state per the spec. Anchoring honors turn-enclosure: a switch while a turn is open appends immediately (openness read from the LOG — `agent.status` stays `running` between queued turns); an idle switch is held on the session record and anchored at the next turn's `agent/prompt-submit` (inside the turn, before anything assembles, last write per knob — an idle flip-flop anchors as one event), because appending from inside a `session/event` listener would reorder events for later-registered peers. Until anchored the switch lives in bridge memory only: responses overlay it truthfully, and a crash before the next turn reverts it — `session/load` then reports the fold's truth. Design: [the sandbox RFC § Per-session mode switching](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md); protocol matrix: [acp-feature-support.md](acp-feature-support.md) § 6. + +Background-task isolation rides on `dsh-tool-bash`: bash task ids are global and predictable, so each task carries an opaque owner token — the owning agent's `session.header.id` — stored on the task inside the executor (`dsh-bash`'s `ownerOf(id)` seam). `bash_output`/`bash_kill` reject a task whose token differs from the caller's session token, so one session's agent can't read or kill another's task. Ownership is by session TOKEN, not `Agent` object identity — a different `Agent` object on the same session may access the task — and because the token lives on the executor's task it survives a `tool-bash` HMR reload. + ## Per-session cwd Each session runs in its own workspace, recorded as the session's `SessionHeader.cwd`. On `session/new` the (absolute) request `cwd` becomes that header cwd; on `session/load` the resumed session keeps its PERSISTED header cwd and the request `cwd` must be absolute and equal to it, so the editor and bash executor agree on the workspace before an agent is constructed. A load whose persisted session has no absolute cwd is REJECTED up front via a metadata-only `list()` check, BEFORE resume constructs an agent (else bash would silently fall back to the server's launch dir, and a post-resume reject would leak the registered agent). `dsh-tool-bash` then defaults the bash workdir to the calling agent's `session.header.cwd` (an explicit model `workdir` still wins; a relative one resolves against the session cwd; with no session cwd the executor falls back to its own config / `process.cwd()`). So the server no longer has to be launched in the workspace — an editor can open any project folder, and N sessions over one connection can each target a different directory. (`additionalDirectories` is still rejected: widening the tool/filesystem scope beyond the single cwd is a separate sandbox concern.) diff --git a/packages/ui/acp/acp-feature-support.md b/packages/ui/acp/acp-feature-support.md index ff27c3f2d5..0be43b4db6 100644 --- a/packages/ui/acp/acp-feature-support.md +++ b/packages/ui/acp/acp-feature-support.md @@ -10,7 +10,7 @@ Legend: ✅ supported · ⚠️ partial / fallback · ❌ not yet · — n/a. Th ## At a glance -The bridge implements the **core prompt-turn loop** for N concurrent sessions: initialize, session new/load, prompt, cancel, streamed assistant/thought chunks, tool-call rendering (including Zed terminal cards), and resumable session replay. The largest **unbuilt** areas are **MCP passthrough**, **session modes / config options / model selection**, **slash commands**, and **agent plans** — all of which both reference adapters ship — plus the client **filesystem** and **terminal** method families (which the adapters mostly do NOT drive either — see rows 43-49). See [Gap summary](#gap-summary). +The bridge implements the **core prompt-turn loop** for N concurrent sessions: initialize, session new/load, prompt, cancel, streamed assistant/thought chunks, tool-call rendering (including Zed terminal cards), and resumable session replay. The largest **unbuilt** areas are the **permission gate** (`session/request_permission`), **MCP passthrough**, **session modes / config options / model selection**, **slash commands**, and **agent plans** — all of which both reference adapters ship — plus the client **filesystem** and **terminal** method families (which the adapters mostly do NOT drive either — see rows 43-49). See [Gap summary](#gap-summary). ## 1. Agent methods (client → agent) @@ -26,7 +26,7 @@ The bridge implements the **core prompt-turn loop** for N concurrent sessions: i | `session/prompt` | S | ✅ | ✅ | ✅ | Maps to `agent.send`; one in-flight prompt per session; settles on the owning turn's end. | | `session/cancel` | S | ✅ | ✅ | ✅ | Queue-aware `agent.cancel`; settles the in-flight prompt `cancelled`, scoped to the one session. | | `session/set_mode` | S | ❌ | ✅ | ✅ | Session modes deliberately skipped: config options are the spec's replacement (modes are slated for removal in ACP v2), and one mode list cannot carry the two orthogonal knobs (see [§6](#6-session-modes--config-options--models)). | -| `session/set_config_option` | S | ❌ | ✅ | ✅ | Config options not modeled yet — the sandbox RFC's per-session mode switching stages them ([sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)). | +| `session/set_config_option` | S | ✅ | ✅ | ✅ | Two capability-gated selects — `sandbox-mode` (confining executor mounted) and `approval-policy` (approval seam composed); values validated against the domain vocabularies, one log-only event per switch on the session's own log, complete refreshed state in the response ([sandbox RFC § Per-session mode switching](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)). | | model selection | S | ❌ | ✅ | ✅ | No distinct stable `session/set_model` — model is the `model`-category `session/set_config_option`. The bridge fixes the model per-bridge via config; no runtime switch. Codex still uses the legacy `unstable_setSessionModel` ext method. | | `session/list` | S | ❌ | ✅ | ✅ | Gated by `sessionCapabilities.list`. The harness HAS `sessionPersistence.list()` (used internally for load-cwd validation) but does not expose it over ACP. | | `session/delete` | S | ❌ | ✅ | ✅ | Gated by `sessionCapabilities.delete`. | @@ -86,7 +86,7 @@ These are capabilities the bridge would *drive* on the editor. The harness runs | `plan` | S | ❌ | ✅ | ✅ | No agent plan emitted. Both adapters emit real plan entries (Codex's `CodexEventHandler.updatePlan` maps `turn/plan/updated` → `{ sessionUpdate: 'plan', entries }`). | | `available_commands_update` | S | ❌ | ✅ | ✅ | No slash commands advertised. | | `current_mode_update` | S | ❌ | ✅ | ✅ | No session modes. | -| `config_option_update` | S | ❌ | ✅ | ✅ | No config options yet. | +| `config_option_update` | S | ❌ | ✅ | ✅ | Config options exist (advertised in `session/new`/`session/load`, switched via `session/set_config_option`), but the bridge never pushes agent-initiated changes — an operator default drift is narrated to the MODEL, not echoed to the editor. Future work in the [sandbox RFC § Per-session mode switching](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md). | | `usage_update` | S | ❌ | ✅ | ✅ | Token/cost reporting not surfaced (the harness records token usage internally on `assistant/message`). | | `session_info_update` | S | ❌ | ⚠️ | ⚠️ | Session title/metadata not pushed. | @@ -111,7 +111,7 @@ Tool-call presentation is **owned by each tool** (`presentCall` / `presentResult ## 6. Session modes / config options / models -Session modes and config options are not modeled yet: the sandbox RFC's per-session mode switching ([sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)) stages config options as the surface (modes are slated for removal in ACP v2, and one mode list cannot carry two orthogonal knobs). Runtime model selection is also not modeled — the harness fixes the model per-bridge via `AcpConfig.model` (both reference adapters ship a model selector). +Config options ✅ (the [sandbox RFC § Per-session mode switching](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)): the bridge advertises one independent `select` per composable knob — `sandbox-mode` iff the mounted executor confines, `approval-policy` iff the approval seam is composed — with per-session current values folded from each session's own log, and honors `session/set_config_option` end to end (idle switches anchor at the next turn under the turn-enclosure contract). Session MODES stay deliberately unmodeled: config options are the spec's replacement (modes are slated for removal in ACP v2), and one mode list cannot carry two orthogonal knobs. Runtime model selection is still not modeled — the harness fixes the model per-bridge via `AcpConfig.model` (both reference adapters ship a model selector). ## 7. Content blocks @@ -141,7 +141,7 @@ The bridge rejects unsupported prompt blocks rather than silently dropping them Ranked by how commonly the reference adapters ship them and how much UX they unlock: 1. **Session lifecycle** — `session/list` + `session/delete` (the persistence layer already lists), then `session/resume` / `session/close`. -2. **Modes / config options / model selection** — the permission round-trip landed with the approval seam; the config surface (`sandbox-mode`/`approval-policy` options) is the sandbox RFC's staged config phase. +2. **Modes / config options / model selection** — the permission round-trip landed with the approval seam; the config surface (`sandbox_mode`/`approval_policy` options) is the sandbox RFC's config phase. 3. **Agent plan** (`sessionUpdate: 'plan'`) — surface the loop's plan as structured entries. 4. **Slash commands** (`available_commands_update`). 5. **MCP passthrough** (`mcpServers` on `session/new` + `mcpCapabilities`). diff --git a/packages/ui/acp/package.json b/packages/ui/acp/package.json index 8c9f731363..0f3efc7110 100644 --- a/packages/ui/acp/package.json +++ b/packages/ui/acp/package.json @@ -29,7 +29,9 @@ "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", "@deepseek-ai/dsh-approval": "^0.0.1", + "@deepseek-ai/dsh-bash": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-sandbox": "^0.0.1", "@deepseek-ai/dsh-session": "^0.0.1", "@deepseek-ai/dsh-session-persistence": "^0.0.1", "@deepseek-ai/dsh-tools": "^0.0.1", @@ -46,6 +48,7 @@ "@deepseek-ai/dsh-fs-policy": "workspace:^", "@deepseek-ai/dsh-invariants": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-sandbox": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", "@deepseek-ai/dsh-session-persistence": "workspace:^", "@deepseek-ai/dsh-session-persistence-jsonl": "workspace:^", diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index 5959f0f9c4..a7b13ac13b 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -62,7 +62,10 @@ import { type PlanEntry, type PromptRequest, type PromptResponse, + type SessionConfigOption, type SessionNotification, + type SetSessionConfigOptionRequest, + type SetSessionConfigOptionResponse, type Stream, type StopReason, } from '@agentclientprotocol/sdk' @@ -71,6 +74,10 @@ import { assertNever, CallId } from '@deepseek-ai/dsh-llm' import type { Agent, AgentStatus } from '@deepseek-ai/dsh-agent' import { AgentId } from '@deepseek-ai/dsh-agent' import { SessionId } from '@deepseek-ai/dsh-session' +import { SANDBOX_MODES, effectiveSandboxMode, setSandboxMode } from '@deepseek-ai/dsh-bash' +import { APPROVAL_POLICIES, effectiveApprovalPolicy, setApprovalPolicy } from '@deepseek-ai/dsh-approval' +import type { SandboxMode } from '@deepseek-ai/dsh-sandbox' +import type { ApprovalPolicy } from '@deepseek-ai/dsh-approval' import type { SessionEvent, TodoItem, TurnEndReason } from '@deepseek-ai/dsh-session' import type { ToolCallView, ToolRegistry, ToolResultView, TerminalResultView } from '@deepseek-ai/dsh-tools' // Side-effect type import: declaration-merges `ctx.sessionPersistence` onto @@ -313,6 +320,19 @@ interface SessionRecord { turn: number | undefined logWatermark: number } | undefined + /** + * Config switches accepted while the session was IDLE, not yet anchored in + * its log. The turn-enclosure contract makes a bare between-turns append + * invalid (the JSONL backend treats a post-`turn/end` tail as crash + * garbage, and dev invariants throw), so an idle switch waits here and is + * anchored at the next turn's prompt-submit — before anything in that + * turn assembles a prompt or runs a call, and last write + * per knob wins (an idle flip-flop anchors as one event). Until anchored, + * the switch lives only in bridge memory: the set/new/load responses + * overlay it truthfully, and a restart before the next turn reverts it — + * which `session/load` then reports honestly from the log's fold. + */ + pendingSwitches: { sandboxMode?: SandboxMode; approvalPolicy?: ApprovalPolicy } } /** @@ -593,6 +613,103 @@ export function apply(ctx: Context, config: AcpConfig): void { // --- The ACP Agent method surface ----------------------------------------- + /** + * The session config options this composition can honor, with current + * values folded from the AGENT'S OWN session log (`effectiveSandboxMode` / + * `effectiveApprovalPolicy` — the log is the per-session store, so a + * `session/load` reports a resumed session's overrides with no catch-up + * machinery), overlaid with the record's not-yet-anchored pending switches + * (see {@link SessionRecord.pendingSwitches}). Capability-gated like every + * advertised lever: the sandbox option exists only when the mounted + * executor confines (`ctx.get('bash')?.sandboxMode` defined), the approval + * option only when the approval seam is composed — both read + * opportunistically so this bridge keeps working in compositions without + * them. + */ + const configOptionsFor = (agent: Agent, pending: SessionRecord['pendingSwitches'] = {}): SessionConfigOption[] => { + const options: SessionConfigOption[] = [] + const defaultMode = ctx.get('bash')?.sandboxMode + if (defaultMode !== undefined) { + options.push({ + id: 'sandbox-mode', + name: 'Sandbox', + description: 'The file sandbox mode bash commands in this session run under.', + category: 'mode', + type: 'select', + currentValue: pending.sandboxMode ?? effectiveSandboxMode(agent.session.events) ?? defaultMode, + options: SANDBOX_MODES.map(mode => ({ value: mode, name: mode })), + }) + } + const approval = ctx.get('approval') + if (approval !== undefined) { + options.push({ + id: 'approval-policy', + name: 'Approvals', + description: 'ask: permission prompts reach you; never: they are rejected automatically.', + type: 'select', + // `?? 'ask'` also shields against a provided stand-in whose config + // never went through the plugin schema (tests do this). + currentValue: pending.approvalPolicy ?? effectiveApprovalPolicy(agent.session.events) ?? approval.config.policy ?? 'ask', + options: APPROVAL_POLICIES.map(policy => ({ value: policy, name: policy })), + }) + } + return options + } + + /** + * Whether the session's log currently has an open turn — the last boundary + * event is a `turn/start`. Decides whether a config switch may append NOW + * (enclosed) or must wait for the next turn (see + * {@link SessionRecord.pendingSwitches}). Read from the LOG, not + * `agent.status`: status stays `running` across the gap between two queued + * turns, where a bare append would still land outside any turn. + */ + const isTurnOpen = (agent: Agent): boolean => { + const events = agent.session.events + for (let index = events.length - 1; index >= 0; index -= 1) { + const type = (events[index] as SessionEvent).type + if (type === 'turn/start') return true + if (type === 'turn/end') return false + } + return false + } + + /** + * Anchor a record's pending switches into its (just-opened) turn, last + * write per knob — skipping a value the session already effectively has, + * so a net-zero idle flip-flop anchors NOTHING (the log records switches, + * not select clicks). + */ + const flushPendingSwitches = (rec: SessionRecord): void => { + const pending = rec.pendingSwitches + rec.pendingSwitches = {} + const events = rec.agent.session.events + if (pending.sandboxMode !== undefined + && pending.sandboxMode !== (effectiveSandboxMode(events) ?? ctx.get('bash')?.sandboxMode)) { + setSandboxMode(rec.agent.session, pending.sandboxMode) + } + if (pending.approvalPolicy !== undefined + && pending.approvalPolicy !== (effectiveApprovalPolicy(events) ?? ctx.get('approval')?.config.policy ?? 'ask')) { + setApprovalPolicy(rec.agent.session, pending.approvalPolicy) + } + } + + // Idle-accepted switches anchor at the next turn's prompt-submit: the turn + // is open (the seam fires inside it, per drained message — the first flush + // empties the slot, later ones no-op), the loop has not yet assembled + // anything for it, and — unlike appending from inside a `session/event` + // listener — this seam fires OUTSIDE any log emit, so peer listeners + // (the dev invariants, persistence) observe the anchored events in strict + // log order. A turn with no prompt (an idle inject's one-shot injection + // turn) leaves the switch pending — it runs no step, so nothing executes + // or assembles under a stale value. + ctx.on('agent/prompt-submit', (agent, _content, _source, next) => { + const sessionId = bySession.get(agent) + const rec = sessionId === undefined ? undefined : sessions.get(sessionId) + if (rec !== undefined) flushPendingSwitches(rec) + return next() + }) + const makeAgent = (connection: AgentSideConnection): AcpAgent => { conn = connection return { @@ -646,8 +763,10 @@ export function apply(ctx: Context, config: AcpConfig): void { presenter: makePresenter(), terminalEnabled: terminalOutputCap, inflight: undefined, + pendingSwitches: {}, }) - return Promise.resolve({ sessionId }) + const configOptions = configOptionsFor(handle.agent) + return Promise.resolve({ sessionId, ...configOptions.length > 0 ? { configOptions } : {} }) }, async loadSession(params: LoadSessionRequest): Promise { @@ -723,6 +842,7 @@ export function apply(ctx: Context, config: AcpConfig): void { presenter: makePresenter(), terminalEnabled, inflight: undefined, + pendingSwitches: {}, } sessions.set(sessionId, record) // Replay the persisted event log to the client as session/update. Use @@ -746,7 +866,8 @@ export function apply(ctx: Context, config: AcpConfig): void { for (const event of agent.session.events) { streamSessionEventUpdate(sessionId, event, notify, replayPresenter, replayTerminal) } - return {} + const configOptions = configOptionsFor(agent) + return configOptions.length > 0 ? { configOptions } : {} } finally { loadingIds.delete(sessionId) } @@ -802,6 +923,61 @@ export function apply(ctx: Context, config: AcpConfig): void { return Promise.resolve() }, + setSessionConfigOption(params: SetSessionConfigOptionRequest): Promise { + assertOpen() + const rec = requireSession(SessionId(params.sessionId)) + // Both advertised options are selects, so the boolean-shaped variant of + // the request is a protocol misuse regardless of configId. + if (typeof params.value !== 'string') { + throw invalidParams(`config option ${params.configId} is a select; boolean values are not accepted`) + } + // The setters append ONE log-only event on this session's own log — + // the log is the store (the sandbox RFC § Per-session mode switching): execution, the + // prompt section, and the narrator all fold it from there, and a + // resumed session reports the override back through + // configOptionsFor. A switch while a turn is OPEN anchors + // immediately (the next step sees it); an IDLE switch waits in + // pendingSwitches for the next `turn/start` (turn-enclosure: a bare + // between-turns append would be dropped as crash tail on reload). + // Values are validated against the same closed lists the options + // advertised; an id this composition never advertised (or an unknown + // one) rejects. + switch (params.configId) { + case 'sandbox-mode': { + const defaultMode = ctx.get('bash')?.sandboxMode + if (defaultMode === undefined || !SANDBOX_MODES.includes(params.value as SandboxMode)) { + throw invalidParams(`unknown sandbox-mode value ${JSON.stringify(params.value)}`) + } + const value = params.value as SandboxMode + // A no-op switch (the value the session already shows — pending, + // else fold, else default) is acknowledged without recording + // anything: clients that re-push current selections on session + // start must not mint override events out of thin air. + const current = rec.pendingSwitches.sandboxMode ?? effectiveSandboxMode(rec.agent.session.events) ?? defaultMode + if (value === current) break + if (isTurnOpen(rec.agent)) setSandboxMode(rec.agent.session, value) + else rec.pendingSwitches.sandboxMode = value + break + } + case 'approval-policy': { + const approval = ctx.get('approval') + if (approval === undefined || !APPROVAL_POLICIES.includes(params.value as ApprovalPolicy)) { + throw invalidParams(`unknown approval-policy value ${JSON.stringify(params.value)}`) + } + const value = params.value as ApprovalPolicy + const current = rec.pendingSwitches.approvalPolicy ?? effectiveApprovalPolicy(rec.agent.session.events) ?? approval.config.policy ?? 'ask' + if (value === current) break + if (isTurnOpen(rec.agent)) setApprovalPolicy(rec.agent.session, value) + else rec.pendingSwitches.approvalPolicy = value + break + } + default: + throw invalidParams(`unknown config option ${JSON.stringify(params.configId)}`) + } + // The spec requires the COMPLETE refreshed config state in the response + // (a change may cascade); ours are independent, but the contract holds. + return Promise.resolve({ configOptions: configOptionsFor(rec.agent, rec.pendingSwitches) }) + }, } } diff --git a/packages/ui/acp/tests/config-options.spec.ts b/packages/ui/acp/tests/config-options.spec.ts new file mode 100644 index 0000000000..46ff7c13e5 --- /dev/null +++ b/packages/ui/acp/tests/config-options.spec.ts @@ -0,0 +1,260 @@ +/** + * Session config options over the bridge: the two per-session knobs + * (`sandbox-mode`, `approval-policy`) advertised from composition capability, + * their current values folded from each session's own log, switching via + * `session/set_config_option` (one log-only event per switch — the log is the + * store), and a resumed session reporting its overrides back on + * `session/load` with no catch-up machinery. + */ + +import { afterEach, beforeEach, describe, expect, it } from 'vitest' +import { mkdtemp, rm } from 'node:fs/promises' +import { tmpdir } from 'node:os' +import { join } from 'node:path' +import { PROTOCOL_VERSION } from '@agentclientprotocol/sdk' +import * as Invariants from '@deepseek-ai/dsh-invariants' +import ApprovalService from '@deepseek-ai/dsh-approval' +import type { ApprovalPolicy } from '@deepseek-ai/dsh-approval' +import { LocalBashExecutor } from '@deepseek-ai/dsh-bash-local' +import type { SandboxMode } from '@deepseek-ai/dsh-sandbox' +import { makeBridgeHarness, textResponse, type BridgeHarness } from './harness.ts' + +/** + * The REAL local executor reporting a confining default — `sandboxMode` is + * the documented capability override point (`dsh-bash-sandbox` overrides it + * the same way), so the bridge sees exactly what a sandboxing composition + * advertises without this suite dragging in a kernel sandbox stack. + */ +class SandboxedLocalExecutor extends LocalBashExecutor { + override get sandboxMode(): SandboxMode { + return 'read-only' + } +} + +/** The exact option payloads the bridge advertises (pinned verbatim). */ +function sandboxOption(currentValue: SandboxMode): object { + return { + id: 'sandbox-mode', + name: 'Sandbox', + description: 'The file sandbox mode bash commands in this session run under.', + category: 'mode', + type: 'select', + currentValue, + options: [ + { value: 'read-only', name: 'read-only' }, + { value: 'workspace-write', name: 'workspace-write' }, + { value: 'danger-full-access', name: 'danger-full-access' }, + ], + } +} + +function approvalOption(currentValue: ApprovalPolicy): object { + return { + id: 'approval-policy', + name: 'Approvals', + description: 'ask: permission prompts reach you; never: they are rejected automatically.', + type: 'select', + currentValue, + options: [ + { value: 'ask', name: 'ask' }, + { value: 'never', name: 'never' }, + ], + } +} + +describe('acp bridge — session config options', () => { + let storageDir: string + let h: BridgeHarness | undefined + let loader: BridgeHarness | undefined + + beforeEach(async () => { storageDir = await mkdtemp(join(tmpdir(), 'acp-config-')) }) + afterEach(async () => { + if (h) await h.dispose() + if (loader) await loader.dispose() + h = loader = undefined + await rm(storageDir, { recursive: true, force: true }) + }) + + /** A harness whose composition can honor both knobs (sandboxed executor + approval seam). */ + async function bothKnobs(options: { policy?: ApprovalPolicy; script?: NonNullable[0]>['script'] } = {}): Promise { + const harness = await makeBridgeHarness({ storageDir, ...options.script !== undefined ? { script: options.script } : {} }) + // The dev invariants police turn-enclosure: an idle switch that appended + // outside a turn would throw right here in the suite, not in production. + await harness.ctx.plugin(Invariants) + await harness.ctx.plugin(SandboxedLocalExecutor, { timeoutMs: 10_000 }) + await harness.ctx.plugin(ApprovalService, options.policy !== undefined ? { policy: options.policy } : {}) + await harness.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + return harness + } + + it('advertises no configOptions in a composition with neither knob', async () => { + h = await makeBridgeHarness({ storageDir }) + await h.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + const res = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + expect(res.configOptions).toBeUndefined() + }) + + it('a non-confining executor advertises no sandbox option (nothing would honor it)', async () => { + h = await makeBridgeHarness({ storageDir, withBash: true }) + await h.ctx.plugin(ApprovalService) + await h.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + const res = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + expect(res.configOptions).toEqual([approvalOption('ask')]) + }) + + it('advertises both knobs with capability-derived currents (config default included)', async () => { + h = await bothKnobs({ policy: 'never' }) + const res = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + expect(res.configOptions).toEqual([sandboxOption('read-only'), approvalOption('never')]) + }) + + it('an idle switch is pending (overlaid, not yet logged), then anchors INSIDE the next turn', async () => { + h = await bothKnobs({ script: [textResponse('ok')] }) + const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + + const afterSandbox = await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'workspace-write' }) + expect(afterSandbox.configOptions).toEqual([sandboxOption('workspace-write'), approvalOption('ask')]) + const afterApproval = await h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', value: 'never' }) + expect(afterApproval.configOptions).toEqual([sandboxOption('workspace-write'), approvalOption('never')]) + + // Idle: nothing in the log yet — turn-enclosure forbids a bare append + // (the dev invariants in this suite would throw), so the switch lives on + // the record until a turn opens. + const session = h.ctx.agents.list()[0]?.session + expect(session?.events.some(e => e.type === 'bash/sandbox-mode' || e.type === 'approval/policy')).toBe(false) + + // The next turn anchors both switches inside itself, one event per knob. + await h.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'anchor' }] }) + const events = session?.events ?? [] + expect(events.filter(e => e.type === 'bash/sandbox-mode').map(e => e.data)).toEqual([{ mode: 'workspace-write' }]) + expect(events.filter(e => e.type === 'approval/policy').map(e => e.data)).toEqual([{ policy: 'never' }]) + const turnStart = events.findIndex(e => e.type === 'turn/start') + const anchored = events.findIndex(e => e.type === 'bash/sandbox-mode') + expect(turnStart).toBeGreaterThanOrEqual(0) + expect(anchored).toBeGreaterThan(turnStart) + }) + + it('an idle flip-flop anchors as ONE event (last write per knob wins)', async () => { + h = await bothKnobs({ script: [textResponse('ok')] }) + const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'workspace-write' }) + await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'danger-full-access' }) + await h.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'anchor' }] }) + const events = h.ctx.agents.list()[0]?.session.events ?? [] + expect(events.filter(e => e.type === 'bash/sandbox-mode').map(e => e.data)).toEqual([{ mode: 'danger-full-access' }]) + // Idle again AFTER a completed turn (the log now ends in turn/end): a new + // switch pends rather than appending outside the closed turn. + const again = await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'read-only' }) + expect(again.configOptions?.find(option => option.id === 'sandbox-mode')).toMatchObject({ currentValue: 'read-only' }) + expect(events.filter(e => e.type === 'bash/sandbox-mode')).toHaveLength(1) + }) + + it('a no-op switch (the value already shown) records nothing and keeps a live pending', async () => { + h = await bothKnobs({ script: [textResponse('ok')] }) + const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + // Re-pushing the composition default (what clients that echo current + // selections on session start do) must not mint an override event. + const echo = await h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', value: 'ask' }) + expect(echo.configOptions?.find(option => option.id === 'approval-policy')).toMatchObject({ currentValue: 'ask' }) + // Re-sending a PENDING value keeps the pending switch alive (it is what + // the session shows), rather than cancelling it. + await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'workspace-write' }) + const repeat = await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'workspace-write' }) + expect(repeat.configOptions?.find(option => option.id === 'sandbox-mode')).toMatchObject({ currentValue: 'workspace-write' }) + await h.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'anchor' }] }) + const events = h.ctx.agents.list()[0]?.session.events ?? [] + expect(events.filter(e => e.type === 'approval/policy')).toHaveLength(0) + expect(events.filter(e => e.type === 'bash/sandbox-mode').map(e => e.data)).toEqual([{ mode: 'workspace-write' }]) + }) + + it('a net-zero idle flip-flop anchors NOTHING (switches are recorded, select clicks are not)', async () => { + h = await bothKnobs({ script: [textResponse('ok')] }) + const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'workspace-write' }) + const back = await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'read-only' }) + expect(back.configOptions?.find(option => option.id === 'sandbox-mode')).toMatchObject({ currentValue: 'read-only' }) + await h.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'anchor' }] }) + const events = h.ctx.agents.list()[0]?.session.events ?? [] + expect(events.filter(e => e.type === 'bash/sandbox-mode')).toHaveLength(0) + }) + + it('a mid-turn switch anchors immediately (the open turn encloses it)', async () => { + h = await bothKnobs({ script: ['hang'] }) + const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + const hung = h.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'go' }] }) + // Give the loop a tick to open the turn (the turns.spec hang idiom). + await new Promise(resolve => setTimeout(resolve, 30)) + await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'workspace-write' }) + await h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', value: 'never' }) + const events = h.ctx.agents.list()[0]?.session.events ?? [] + const turnStart = events.findIndex(e => e.type === 'turn/start') + const anchored = events.findIndex(e => e.type === 'bash/sandbox-mode') + expect(turnStart).toBeGreaterThanOrEqual(0) + expect(anchored).toBeGreaterThan(turnStart) + expect(events.some(e => e.type === 'approval/policy')).toBe(true) + await h.client.cancel({ sessionId }) + await hung + }) + + it('tolerates a provided approval stand-in whose config skipped the plugin schema', async () => { + h = await makeBridgeHarness({ storageDir, script: [textResponse('ok')] }) + h.ctx.provide('approval', { config: {} } as unknown as InstanceType) + await h.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + const res = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + expect(res.configOptions).toEqual([approvalOption('ask')]) + const sessionId = res.sessionId + // The schema-less config also shields the no-op guard ('ask' by the ?? fallback)… + const echo = await h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', value: 'ask' }) + expect(echo.configOptions).toEqual([approvalOption('ask')]) + // …and the anchor-time comparison: a real switch under the stand-in still anchors. + await h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', value: 'never' }) + await h.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'anchor' }] }) + const events = h.ctx.agents.list()[0]?.session.events ?? [] + expect(events.filter(e => e.type === 'approval/policy').map(e => e.data)).toEqual([{ policy: 'never' }]) + }) + + it('rejects unknown ids, unadvertised ids, boolean values, and out-of-vocabulary values', async () => { + h = await makeBridgeHarness({ storageDir }) + await h.ctx.plugin(ApprovalService) + await h.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + + await expect(h.client.setSessionConfigOption({ sessionId, configId: 'reasoning-effort', value: 'max' })) + .rejects.toThrow(/unknown config option/) + // sandbox-mode exists as a concept but THIS composition never advertised it. + await expect(h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'workspace-write' })) + .rejects.toThrow(/unknown sandbox-mode value/) + await expect(h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', type: 'boolean', value: true })) + .rejects.toThrow(/select; boolean values are not accepted/) + await expect(h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', value: 'always' })) + .rejects.toThrow(/unknown approval-policy value/) + }) + + it('a switch in one session never leaks into a concurrent one (state and pending both per-session)', async () => { + h = await bothKnobs() + const a = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + const b = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + await h.client.setSessionConfigOption({ sessionId: a.sessionId, configId: 'sandbox-mode', value: 'danger-full-access' }) + // B sees its own composition defaults, not A's pending switch... + const bAfter = await h.client.setSessionConfigOption({ sessionId: b.sessionId, configId: 'approval-policy', value: 'never' }) + expect(bAfter.configOptions).toEqual([sandboxOption('read-only'), approvalOption('never')]) + // ...and A keeps its own state, untouched by B's. + const aAfter = await h.client.setSessionConfigOption({ sessionId: a.sessionId, configId: 'sandbox-mode', value: 'danger-full-access' }) + expect(aAfter.configOptions).toEqual([sandboxOption('danger-full-access'), approvalOption('ask')]) + }) + + it('session/load reports a resumed session\'s overrides from its own log', async () => { + h = await bothKnobs({ script: [textResponse('ok')] }) + const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] }) + await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'danger-full-access' }) + await h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', value: 'never' }) + // One turn checkpoints the log (the switch events flush with it). + await h.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'persist me' }] }) + await h.dispose() + h = undefined + + loader = await bothKnobs() + const res = await loader.client.loadSession({ sessionId, cwd: process.cwd(), mcpServers: [] }) + expect(res.configOptions).toEqual([sandboxOption('danger-full-access'), approvalOption('never')]) + }) +}) diff --git a/packages/ui/acp/tsconfig.json b/packages/ui/acp/tsconfig.json index 7c80e7459c..9aea0732d6 100644 --- a/packages/ui/acp/tsconfig.json +++ b/packages/ui/acp/tsconfig.json @@ -38,6 +38,9 @@ { "path": "../../approval/approval" }, + { + "path": "../../sandbox/sandbox" + }, { "path": "../../bash/bash" } diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 624ae3407d..06bda5af34 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -76,6 +76,10 @@ importers: version: 4.1.8(@types/node@22.20.0)(@vitest/coverage-v8@4.1.8)(jsdom@29.1.1)(vite@8.0.16(@types/node@22.20.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0)) packages/approval/approval: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 devDependencies: '@deepseek-ai/dsh-agent': specifier: workspace:^ @@ -89,6 +93,9 @@ importers: '@deepseek-ai/dsh-session': specifier: workspace:^ version: link:../../core/session + '@deepseek-ai/dsh-system-prompt': + specifier: workspace:^ + version: link:../../core/system-prompt cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -1077,6 +1084,9 @@ importers: '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm + '@deepseek-ai/dsh-sandbox': + specifier: workspace:^ + version: link:../../sandbox/sandbox '@deepseek-ai/dsh-session': specifier: workspace:^ version: link:../../core/session From ca39fd89b0d3fb3da46744891c12840c0ea0e8b3 Mon Sep 17 00:00:00 2001 From: kingwl Date: Thu, 9 Jul 2026 16:44:32 +0800 Subject: [PATCH 173/232] =?UTF-8?q?feat(example):=20sandbox-acp-agent=20?= =?UTF-8?q?=E2=80=94=20the=20live=20composition;=20RFCs=20to=20implemented?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The three-entry cordis.yml (dsh-sandbox-local + dsh-bash-sandbox at a read-only default + dsh-approval) served over ACP: the first live approval composition. Recorded snapshot scenarios pin the wire end to end — config-options advertisement, the mode-switching arc as the suite pinned header (both switches, the prompt-section delta, one changed-by-the-user notice per knob, a confined write landing under the switched mode), and both escalation branches over scripted permissionAnswers (a grant runs confined under workspace-write; a rejection executes nothing and pins the fail-closed text). The with-key escalation e2e drives a real model + real runner + the real bridge answerer, world-verified; ci.yml snapshot lane and e2e.yml install bubblewrap so the confined replays actually execute. Both RFCs move to implemented/ (Decision/Consequences form, deferred phases tracked in their own sections), with every cross-reference flipped. --- .github/workflows/ci.yml | 14 + .github/workflows/e2e.yml | 14 + docs/architecture.md | 2 + docs/cookbook/extension-cookbook.md | 4 +- docs/core-data-structures/bash.md | 2 +- docs/event-producer-consumer.md | 2 +- docs/persistence-catalog.md | 6 +- docs/rfc/INDEX.md | 4 +- .../feature/2026-06-30-hook-bridges.md | 2 +- .../feature/2026-06-30-interception-seams.md | 2 +- .../feature/2026-07-06-approval-seam.md | 50 ++-- .../feature/2026-07-06-sandbox.md | 60 ++--- .../2026-06-14-acp-agent-client-protocol.md | 2 +- .../feature/2026-06-14-acp-multi-session.md | 2 +- examples/AGENTS.md | 5 +- examples/README.md | 6 + examples/sandbox-acp-agent/README.md | 16 ++ .../sandbox-acp-agent/cordis.snapshot.yml | 30 +++ examples/sandbox-acp-agent/cordis.yml | 63 +++++ examples/sandbox-acp-agent/package.json | 7 + .../sandbox-acp-agent/tests/acp.snapshot.ts | 67 +++++ .../sandbox-acp-agent/tests/escalation.e2e.ts | 213 +++++++++++++++ .../tests/snapshots/config-options/input.json | 10 + .../snapshots/config-options/session.jsonl | 1 + .../config-options/stdout.golden.jsonl | 6 + .../snapshots/escalation-approved/input.json | 10 + .../escalation-approved/session.jsonl | 149 +++++++++++ .../escalation-approved/stdout.golden.jsonl | 59 +++++ .../snapshots/escalation-rejected/input.json | 10 + .../escalation-rejected/session.jsonl | 202 +++++++++++++++ .../escalation-rejected/stdout.golden.jsonl | 111 ++++++++ .../tests/snapshots/mode-switching/input.json | 11 + .../snapshots/mode-switching/session.jsonl | 245 ++++++++++++++++++ .../mode-switching/stdout.golden.jsonl | 134 ++++++++++ .../mode-switching/workspace/notes.txt | 1 + knip.json | 10 +- package.json | 1 + packages/approval/README.md | 6 +- packages/approval/approval/README.md | 4 +- packages/bash/bash-local/README.md | 2 +- packages/bash/bash-sandbox/README.md | 2 +- packages/bash/bash-sandbox/src/index.ts | 2 +- packages/bash/bash/README.md | 2 +- packages/bash/tool-bash/README.md | 4 +- packages/bash/tool-bash/src/index.ts | 2 +- .../cordis/tool-cordis/src/api-catalog.ts | 60 ++++- packages/sandbox/README.md | 4 +- packages/sandbox/sandbox-local/README.md | 4 +- packages/sandbox/sandbox-local/src/index.ts | 2 +- packages/sandbox/sandbox/README.md | 4 +- packages/sandbox/sandbox/src/index.ts | 4 +- packages/support/acp-snapshot/src/suite.ts | 21 +- packages/ui/acp/README.md | 2 +- packages/ui/acp/acp-feature-support.md | 6 +- scripts/doc-budgets.manifest.json | 4 +- scripts/gen-config-catalog.ts | 8 +- tsconfig.base.json | 4 +- tsconfig.build.json | 8 +- tsconfig.json | 8 +- 59 files changed, 1579 insertions(+), 117 deletions(-) rename docs/rfc/{proposed => implemented}/feature/2026-07-06-approval-seam.md (70%) rename docs/rfc/{proposed => implemented}/feature/2026-07-06-sandbox.md (85%) create mode 100644 examples/sandbox-acp-agent/README.md create mode 100644 examples/sandbox-acp-agent/cordis.snapshot.yml create mode 100644 examples/sandbox-acp-agent/cordis.yml create mode 100644 examples/sandbox-acp-agent/package.json create mode 100644 examples/sandbox-acp-agent/tests/acp.snapshot.ts create mode 100644 examples/sandbox-acp-agent/tests/escalation.e2e.ts create mode 100644 examples/sandbox-acp-agent/tests/snapshots/config-options/input.json create mode 100644 examples/sandbox-acp-agent/tests/snapshots/config-options/session.jsonl create mode 100644 examples/sandbox-acp-agent/tests/snapshots/config-options/stdout.golden.jsonl create mode 100644 examples/sandbox-acp-agent/tests/snapshots/escalation-approved/input.json create mode 100644 examples/sandbox-acp-agent/tests/snapshots/escalation-approved/session.jsonl create mode 100644 examples/sandbox-acp-agent/tests/snapshots/escalation-approved/stdout.golden.jsonl create mode 100644 examples/sandbox-acp-agent/tests/snapshots/escalation-rejected/input.json create mode 100644 examples/sandbox-acp-agent/tests/snapshots/escalation-rejected/session.jsonl create mode 100644 examples/sandbox-acp-agent/tests/snapshots/escalation-rejected/stdout.golden.jsonl create mode 100644 examples/sandbox-acp-agent/tests/snapshots/mode-switching/input.json create mode 100644 examples/sandbox-acp-agent/tests/snapshots/mode-switching/session.jsonl create mode 100644 examples/sandbox-acp-agent/tests/snapshots/mode-switching/stdout.golden.jsonl create mode 100644 examples/sandbox-acp-agent/tests/snapshots/mode-switching/workspace/notes.txt diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index acb74c0c26..4840b88192 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -82,6 +82,20 @@ jobs: - name: Install (immutable) run: pnpm install --frozen-lockfile + # The snapshot lane REPLAYS the sandbox example's recorded scenarios, + # re-executing their bash calls under a real runner. ubuntu-latest has + # no bubblewrap preinstalled and no built Landlock launcher, so without + # this the confined executions fail closed (SANDBOX_UNAVAILABLE). Same + # install as sandbox.yml's bwrap leg (incl. the Ubuntu 24.04 AppArmor + # userns knob). + - name: Install bubblewrap (unrestrict userns) + if: matrix.lane == 'snapshot' + run: | + sudo apt-get update -q + sudo apt-get install -yq bubblewrap + sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0 \ + || echo "apparmor userns knob absent — the functional probe decides" + - uses: actions/cache@v4 if: matrix.lane == 'lint' with: diff --git a/.github/workflows/e2e.yml b/.github/workflows/e2e.yml index c0371947fd..e06fb025bd 100644 --- a/.github/workflows/e2e.yml +++ b/.github/workflows/e2e.yml @@ -82,6 +82,20 @@ jobs: - name: Install (immutable) run: pnpm install --frozen-lockfile + # The with-key escalation e2e (examples/sandbox-acp-agent/tests/ + # escalation.e2e.ts) self-skips without a usable runner — without this + # step it would never actually execute anywhere (CI had no bwrap, dev + # macs run Seatbelt instead), which is exactly how a broken harness + # composition once survived unseen. Same recipe as ci.yml's bwrap + # steps; the userns knob is best-effort (absent on pre-24.04 kernels, + # the probe decides). + - name: Install bubblewrap (unrestrict userns) + run: | + sudo apt-get update -q + sudo apt-get install -yq bubblewrap + sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0 \ + || echo "apparmor userns knob absent — the functional probe decides" + # Guard against a false green: the e2e suites self-skip when the key is # absent, so a missing/misconfigured secret would otherwise pass as # "all skipped". This job only runs on trusted events (the `if:` above diff --git a/docs/architecture.md b/docs/architecture.md index 01ae6ef7cb..7f8b5f1e9a 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -26,6 +26,7 @@ Composition is preferred over inheritance. `packages/core/` is a repository grou |---|---|---| | `ctx.llm` | [`llm/`](../packages/llm/README.md) | adapter registry and streaming model calls | | `ctx.bash` | [`bash/`](../packages/bash/README.md) | foreground/background command execution | +| `ctx.sandbox` | [`sandbox/`](../packages/sandbox/README.md) | same-world process confinement (argv wrapping, per-call policy) | | `ctx.codeRuntime` | [`code-runtime/`](../packages/code-runtime/README.md) | model-written program execution | | `ctx.fs` | [`fs/`](../packages/fs/README.md) | filesystem provider primitives and policy events | | `ctx.web` | [`web/`](../packages/web/README.md) | search/fetch provider registries | @@ -143,6 +144,7 @@ New behavior should attach to a documented extension point; changing the shipped | Add a model-facing capability | register a tool on `ctx.tools`; schemas flow into prompt assembly | | Add command execution | implement and register a `ctx.bash` backend | | Add filesystem access or policy | implement a `ctx.fs` provider or listen on `fs/*` policy events | +| Confine spawned processes | a `ctx.sandbox` backend; consumers wrap their argv before spawning | | Intercept prompts, requests, tool use, or continuation | listen on the relevant `agent/*` or `tools/*` waterfall | | Add a session-stable request prefix outside history | compose it on `agent/session-prefix`, once per loop instance; logged on the request header | | Add UI or editor integration | drive `ctx.agents` and render from `session/event` | diff --git a/docs/cookbook/extension-cookbook.md b/docs/cookbook/extension-cookbook.md index de21ece7b1..a773fee6e9 100644 --- a/docs/cookbook/extension-cookbook.md +++ b/docs/cookbook/extension-cookbook.md @@ -56,7 +56,7 @@ export function apply(ctx: Context) { A *client driver* is a UI plugin whose "user" is another program speaking a wire protocol rather than a human at a terminal. It owns the process's stdio (so it must run with **no stdout logger** — every non-protocol byte corrupts the stream), creates/resumes agents on demand through the `dsh-agent` factory seam, translates harness events (`session/event`, `agent/*`) into outbound protocol messages, and translates inbound requests back into `agent.send()` / `agent.cancel()`. Two harness-specific contracts make it correct: resolve each request exactly once off a settle signal (settle from the durable `turn/end` session event — the boundary is a session event, not an `agent/*` mirror — with `agent/status` as the fallback if a peer listener starved yours), and tear each agent down through its `AgentHandle.dispose()` (which stops the loop, `await`s its exit, and unregisters), not just `cancel()` — disposal must *reach* quiescence, not merely request it. -`packages/ui/acp` is the worked example: it bridges the agent to the Agent Client Protocol (JSON-RPC over stdio) so Zed and other ACP editors can drive it. See its README for the full method surface and the deferred-permission-gate note. +`packages/ui/acp` is the worked example: it bridges the agent to the Agent Client Protocol (JSON-RPC over stdio) so Zed and other ACP editors can drive it. See its README for the full method surface and the permission-prompt answerer it registers on the approval seam. ```ts import type { Context } from 'cordis' @@ -100,7 +100,7 @@ Every product feature maps to a listener on a documented extension seam — the | AGENTS.md (subdir, on-touch) + file-change notices | `agent.inject()` from a watcher / tool-result listener | | Built-in tools | `ctx.tools.register()`; schemas flow into the assembly automatically — the `dsh-tool-*` families (bash, fs, web, subagent, todo) are the shipped examples | | ToolSearch / progressive disclosure | filter tools at `system-prompt/assemble` (the assembly carries the schemas; the loop logs the result as the request header, so disclosure stays reconstructable) | -| Tool sandbox (landlock / sandbox-exec) | `tools/pre-execute` (deny), or a sandboxing `BashExecutor` on the `dsh-bash` seam | +| Subprocess sandbox (landlock / sandbox-exec) | `tools/pre-execute` (deny), or a sandboxing `BashExecutor` on the `dsh-bash` seam | | Permission system / AskUserQuestion | `tools/pre-execute` (deny/ask); register an ask tool | | Plan mode | `tools/pre-execute` (deny writes) + a mode prompt section via `ctx.systemPrompt.section()` or `agent.inject()` (model-visible ⟺ logged: `agent/request` shapes call config only) | | Sub-agent delegation | the `ctx.subagents` provider registry (`dsh-subagent-spawn`/`-fork`/`-acp`) + `dsh-tool-subagent` exposing one configured provider to the model | diff --git a/docs/core-data-structures/bash.md b/docs/core-data-structures/bash.md index 07b0307e2d..c131926741 100644 --- a/docs/core-data-structures/bash.md +++ b/docs/core-data-structures/bash.md @@ -197,7 +197,7 @@ interface BashSandboxInfo { } ``` -One more piece completes the vocabulary: the `SANDBOX_UNAVAILABLE` error code (owned by the sandbox seam) is what the `ctx.sandbox` provider throws — and the executor propagates — when a confined mode has no usable backend: sandboxed modes fail CLOSED instead of silently running unconfined. The model's view of the sandbox is result facts only: the static bash tool description explains the denial marker, and each run's `result.sandbox` carries the mode it executed under (no live-mode getter on the seam and no current-mode prompt statement — both arrive with the runtime-context phase of the RFC below). Denials are deny-only result facts today; the approval/escalated-retry flow on top of them is the [sandbox RFC](../rfc/proposed/feature/2026-07-06-sandbox.md). +One more piece completes the vocabulary: the `SANDBOX_UNAVAILABLE` error code (owned by the sandbox seam) is what the `ctx.sandbox` provider throws — and the executor propagates — when a confined mode has no usable backend: sandboxed modes fail CLOSED instead of silently running unconfined. The model's view of the sandbox is result facts only: the static bash tool description explains the denial marker, and each run's `result.sandbox` carries the mode it executed under (no live-mode getter on the seam and no current-mode prompt statement — both arrive with the runtime-context phase of the RFC below). Denials are deny-only result facts today; the approval/escalated-retry flow on top of them is the [sandbox RFC](../rfc/implemented/feature/2026-07-06-sandbox.md). ## Background tasks: `BashTask` diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index a5185aead5..2f9e569950 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -19,7 +19,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `agent/status` | `emit` | [`packages/core/agent/src/types.ts:281`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:451`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | | `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:464`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `approval/request` | `waterfall` | [`packages/approval/approval/src/index.ts:63`](../packages/approval/approval/src/index.ts) | [`approval`](../packages/approval/approval) (`waterfall`) | [`acp`](../packages/ui/acp), [`approval`](../packages/approval/approval) | +| `approval/request` | `waterfall` | [`packages/approval/approval/src/index.ts:64`](../packages/approval/approval/src/index.ts) | [`approval`](../packages/approval/approval) (`waterfall`) | [`acp`](../packages/ui/acp) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | diff --git a/docs/persistence-catalog.md b/docs/persistence-catalog.md index 557c3d669c..314ab82630 100644 --- a/docs/persistence-catalog.md +++ b/docs/persistence-catalog.md @@ -23,7 +23,7 @@ An approval question was put to the answerer chain — log-only audit (like `hoo Types: [CallId](core-data-structures/core.md) -Source: [`packages/approval/approval/src/index.ts:77`](../packages/approval/approval/src/index.ts) +Source: [`packages/approval/approval/src/index.ts:78`](../packages/approval/approval/src/index.ts) #### `approval/decided` — log-only @@ -33,7 +33,7 @@ The outcome of a prior `approval/asked` (same `id`) — log-only audit. Exactly 'approval/decided': { id: ApprovalRequestId; outcome: ApprovalOutcome } ``` -Source: [`packages/approval/approval/src/index.ts:88`](../packages/approval/approval/src/index.ts) +Source: [`packages/approval/approval/src/index.ts:89`](../packages/approval/approval/src/index.ts) #### `approval/policy` — log-only @@ -43,7 +43,7 @@ The session's approval policy was switched — log-only, durable, replayable, ne 'approval/policy': { policy: ApprovalPolicy } ``` -Source: [`packages/approval/approval/src/index.ts:100`](../packages/approval/approval/src/index.ts) +Source: [`packages/approval/approval/src/index.ts:101`](../packages/approval/approval/src/index.ts) ### `assistant/*` diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index 409e8f42e4..9d1555e6ee 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -11,8 +11,6 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [Agent Client Protocol (ACP) support — drive the coding agent from external editors](proposed/feature/2026-06-14-acp-agent-client-protocol.md) | 2026-06-14 | | [Multiplex concurrent ACP sessions over one connection](proposed/feature/2026-06-14-acp-multi-session.md) | 2026-06-14 | | [Pre-tool input rewrite — a consistent design](proposed/feature/2026-06-30-pre-tool-input-rewrite.md) | 2026-06-30 | -| [The approval seam — one-shot permission decisions over a waterfall of answerers](proposed/feature/2026-07-06-approval-seam.md) | 2026-07-06 | -| [The subprocess sandbox — confinement seam, native runners, escalation, and per-session modes](proposed/feature/2026-07-06-sandbox.md) | 2026-07-06 | | [Claude Code and Codex subagent backends (out-of-process delegation to external coding agents)](proposed/feature/2026-07-07-claude-code-and-codex-subagent-backends.md) | 2026-07-07 | ### Simplification @@ -65,7 +63,9 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [SessionStore fork API](implemented/feature/2026-06-30-session-store-fork-api.md) | 2026-06-30 | | [Subagent lifecycle enrichment — lastAssistantMessage (observe-only)](implemented/feature/2026-06-30-subagent-observe-enrich.md) | 2026-06-30 | | [Dynamic workflows — a script-driven multi-agent orchestration seam](implemented/feature/2026-07-05-dynamic-workflows.md) | 2026-07-05 | +| [The approval seam — one-shot permission decisions over a waterfall of answerers](implemented/feature/2026-07-06-approval-seam.md) | 2026-07-06 | | [Explicit model-facing tool order](implemented/feature/2026-07-06-explicit-tool-order.md) | 2026-07-06 | +| [The subprocess sandbox — confinement seam, native runners, escalation, and per-session modes](implemented/feature/2026-07-06-sandbox.md) | 2026-07-06 | | [The session prefix — request-only messages in front of the derived history](implemented/feature/2026-07-07-session-prefix.md) | 2026-07-07 | | [Repeat-tool-call guard plugin](implemented/feature/2026-07-08-repeat-tool-guard.md) | 2026-07-08 | | [The self-referential cordis toolset](implemented/feature/2026-07-08-self-referential-cordis-toolset.md) | 2026-07-08 | diff --git a/docs/rfc/implemented/feature/2026-06-30-hook-bridges.md b/docs/rfc/implemented/feature/2026-06-30-hook-bridges.md index 630d4dd3ed..fc3c8a9a93 100644 --- a/docs/rfc/implemented/feature/2026-06-30-hook-bridges.md +++ b/docs/rfc/implemented/feature/2026-06-30-hook-bridges.md @@ -53,7 +53,7 @@ Two different cwds, kept distinct on purpose. The hooks **themselves** run in th - **Tool-input rewrite.** A CC/Codex `updatedInput` is logged + warned, not honored — input rewrite is a deferred consistency-design problem ([the pre-tool-input-rewrite RFC](../../proposed/feature/2026-06-30-pre-tool-input-rewrite.md)), because the pre-execution args are read by `tool/call` audit + `assistant/message` history + ACP/tool-bash presentation, so an honest rewrite is a design unit, not a field. - **Stop loop-guard** (`TODO(stop-loop-guard)`). CC/Codex break an infinite force-continue with `stop_hook_active` (true once a Stop hook fired this run) plus a max-consecutive cap; both are deferred. Today `stop_hook_active` is always `false`, so a Stop hook that unconditionally blocks would force-continue every step — a hook author must self-limit until the guard lands. -- **Permission `ask`** degrades to `deny` at the `tools/pre-execute` seam (`FIXME(permissions)` in the interception-seams RFC) — there is no interactive permission prompt yet. +- **Permission `ask`** — deferred at landing, since serviced: the [approval seam](2026-07-06-approval-seam.md) resolves `ask` through `ctx.approval` (ACP prompts over `session/request_permission`), degrading to `deny` only where no approval service is composed. - **Hook `continue:false` (hard halt).** A hook can ask to halt the whole run (CC/Codex `continue:false`); the shared merge folds it into `MergedHookOutcome.stop`/`stopReason`, but no bridge acts on it (`TODO(hook-continue-false)`) — the interception seams have no "hard-halt the agent" primitive yet (a Decision blocks/steers a single point, not the run). Deferred with the loop-guard work; the halt request is recorded in the `hook/result` log, and the hook keeps its per-point effect (decision/context) meanwhile. - **Config discovery.** The path is explicit in `cordis.yml` and process-level (see above); the full multi-layer CC/Codex precedence walk, per-session project-local discovery, and the trust/hash model are not reimplemented (`TODO(per-session-hook-config)`). - **Session-start / subagent-start context is best-effort, not gated (`TODO(session-start-gating)`).** `agent/session-start` is a synchronous emit and the bridge runs its hook on a detached `.then`, so the injected `additionalContext` is not guaranteed to land before the first turn reaches the model — a slow hook can miss the first request (the context then arrives as a later injection). `subagent/start` is sharper: an in-process provider may have already queued the child's prompt before the listener runs, and a short-lived child can finish before the detached inject fires. Making startup context a gated/awaited primitive is a loop-level change deferred to the interception seams; today the contract is "injected as soon as the hook resolves", not "before the first request". The bridge tests do NOT wait on the injection where they assert the guaranteed-timing behavior, so they document the real (best-effort) timing rather than masking it. diff --git a/docs/rfc/implemented/feature/2026-06-30-interception-seams.md b/docs/rfc/implemented/feature/2026-06-30-interception-seams.md index 7795b044f6..5b2bb839b3 100644 --- a/docs/rfc/implemented/feature/2026-06-30-interception-seams.md +++ b/docs/rfc/implemented/feature/2026-06-30-interception-seams.md @@ -36,7 +36,7 @@ Add/​reshape the interception seams so every one returns a small, seam-specifi ### What this PR does NOT do -It does **not** declare `hook/*` SessionEvents (the durable hook-invocation log) — those belong to the `dsh-hook-protocol` library, because a native plugin can already use the typed Decisions without a durable hook log. A worked native-plugin example/test in this PR (`packages/core/agent-loop/tests/interception.spec.ts`) proves all the seams compose end-to-end through the REAL loop with NO `hook/*` involved — the concrete proof that "native hooks are just a plugin". Compaction (`PreCompact`/`PostCompact`), the Notification hook, Codex `PermissionRequest`, the permission/`ask` system, and the Stop loop-guard remain deferred (`FIXME(permissions)` marks the `ask`→deny degrade). +It does **not** declare `hook/*` SessionEvents (the durable hook-invocation log) — those belong to the `dsh-hook-protocol` library, because a native plugin can already use the typed Decisions without a durable hook log. A worked native-plugin example/test in this PR (`packages/core/agent-loop/tests/interception.spec.ts`) proves all the seams compose end-to-end through the REAL loop with NO `hook/*` involved — the concrete proof that "native hooks are just a plugin". Compaction (`PreCompact`/`PostCompact`), the Notification hook, Codex `PermissionRequest`, and the Stop loop-guard remain deferred; the permission/`ask` system has since landed as the [approval seam](2026-07-06-approval-seam.md), whose `ctx.approval` services the `ask` this PR shipped degraded to deny. ## Alternatives considered diff --git a/docs/rfc/proposed/feature/2026-07-06-approval-seam.md b/docs/rfc/implemented/feature/2026-07-06-approval-seam.md similarity index 70% rename from docs/rfc/proposed/feature/2026-07-06-approval-seam.md rename to docs/rfc/implemented/feature/2026-07-06-approval-seam.md index 321ae55190..a5f6efd2d1 100644 --- a/docs/rfc/proposed/feature/2026-07-06-approval-seam.md +++ b/docs/rfc/implemented/feature/2026-07-06-approval-seam.md @@ -1,6 +1,6 @@ # RFC: The approval seam — one-shot permission decisions over a waterfall of answerers -Status: proposed +Status: implemented ## Problem @@ -8,7 +8,7 @@ Two callers need to put one question — "may this specific action proceed?" — The routing problem is ownership: an approval prompt must reach the editor session that owns the asking agent (the ACP bridge multiplexes N sessions over one connection), fail closed for agents nobody owns (in-process subagents, tests), and stay out of deployments that compose no UI (headless, CI). -## Proposal +## Decision One package, `dsh-approval` (`packages/approval/approval`), owning the vocabulary and the `ctx.approval` service — the MECHANISM. The POLICY — who answers, and whether a session is asked at all — lives outside it: answerers are `approval/request` waterfall listeners registered by the plugins that own the channel (the ACP bridge; future terminal UIs; test scripts), and a per-session policy tier can decide before any human is involved. Consumers (`dsh-tools`' ask routing, the sandbox escalation gate) resolve a question to a closed outcome and derive their own tool results from it. Deliberately ONE package, not the capability-seam three (see Alternatives). @@ -23,11 +23,11 @@ One `cordis.yml` entry mounts the seam; not loading it is the opt-out — consum # policy: never # deployment default for sessions without an override; 'ask' when omitted ``` -The entry alone provides mechanism, not a channel: with no answerer composed, every ask resolves `unavailable` and the asking tool call denies — fail-closed needs no configuration. Composing the ACP app (`@deepseek-ai/dsh-acp-agent`, as in `examples/sandbox-acp-agent`, the composition staged to land with this design's implementation) completes the loop: its bridge registers an answerer that prompts the owning editor session via `session/request_permission`, so a hook's `ask` or an escalation request surfaces as a one-shot Allow/Reject prompt attached to the already-streamed tool call. `policy: never` is the unattended stance — every ask auto-rejects deterministically, stated in the system prompt, no human in the loop. `policy` is validated against the closed list at plugin load; anything else throws. +The entry alone provides mechanism, not a channel: with no answerer composed, every ask resolves `unavailable` and the asking tool call denies — fail-closed needs no configuration. Composing the ACP app (`@deepseek-ai/dsh-acp-agent`, as in [the sandbox example](../../../../examples/sandbox-acp-agent/README.md)) completes the loop: its bridge registers an answerer that prompts the owning editor session via `session/request_permission`, so a hook's `ask` or an escalation request surfaces as a one-shot Allow/Reject prompt attached to the already-streamed tool call. `policy: never` is the unattended stance — every ask auto-rejects deterministically, stated in the system prompt, no human in the loop. `policy` is validated against the closed list at plugin load; anything else throws. What a composed deployment observes: `allowed-once` lets exactly that call proceed; rejection, dismissal, and channel absence deny with three distinct reasons the model can tell apart; every ask lands a durable `approval/asked`/`approval/decided` pair on the asking agent's session log; nothing about a grant persists past the call that asked. -One ask under this composition — the model requests a sandbox escalation, the gate asks, the bridge prompts the owning editor, the user clicks Allow once. This is the arc the implementation's `escalation-approved` snapshot scenario is to record verbatim: +One ask under this composition, verbatim from the sandbox example's recorded `escalation-approved` scenario — the model requests a sandbox escalation, the gate asks, the bridge prompts the owning editor, the user clicks Allow once: ``` tool/call bash {"command": "printf 'escalated\n' > escalated.txt && cat escalated.txt", @@ -43,13 +43,13 @@ approval/decided {"outcome": "allowed-once"} tool/result "escalated" — this one call ran under the wider mode; the grant died with it ``` -Its `escalation-rejected` twin is to end in `{"outcome": "rejected"}` instead: nothing executes, and the model's result carries the asker's verbatim fail-closed text (`the user rejected escalating this command to "workspace-write"`). A hook's `permissionDecision: ask` rides the identical wire; only the asker and its deny texts differ (§ Ask routing in dsh-tools). Headless, the same request skips the prompt entirely and settles `unavailable`. +The `escalation-rejected` twin ends in `{"outcome": "rejected"}` instead: nothing executes, and the model's result carries the asker's verbatim fail-closed text (`the user rejected escalating this command to "workspace-write"`). A hook's `permissionDecision: ask` rides the identical wire; only the asker and its deny texts differ (§ Ask routing in dsh-tools). Headless, the same request skips the prompt entirely and settles `unavailable`. ### Design detail #### The seam: mechanism and policy split -`ApprovalService.request(req)` always resolves to a closed `ApprovalOutcome` — `allowed-once` / `rejected` / `cancelled` / `unavailable` — and never rejects. The service is the mechanism: it dispatches the `approval/request` waterfall, races the request's `AbortSignal` (abort settles `cancelled`; a late answer is discarded, never double-audited), contains a throwing answerer as `unavailable`, normalizes a rogue non-vocabulary return to `unavailable`, and lands the log-only audit pair `approval/asked`/`approval/decided` (paired by the branded `ApprovalRequestId`) on the requesting agent's session log. Grants are one-shot by definition: `allowed-once` authorizes the single asked-about action, never a class of future ones, and the service stores nothing between requests. +`ApprovalService.request(req)` always resolves to a closed `ApprovalOutcome` — `allowed-once` / `rejected` / `cancelled` / `unavailable` — and never rejects. The service is the mechanism: it dispatches the `approval/request` waterfall, races the request's `AbortSignal` (abort settles `cancelled`; a late answer is discarded, never double-audited), contains a throwing answerer as `unavailable`, normalizes a rogue non-vocabulary return to `unavailable`, and lands the log-only audit pair `approval/asked`/`approval/decided` (paired by the branded `ApprovalRequestId`) on the requesting agent's session log. Grants are one-shot by definition: `allowed-once` authorizes the single asked-about action, never a class of future ones, and the service stores nothing between requests. The one precondition: `request()` throws (before appending anything) when the agent's session has no open turn — the audit pair must be turn-enclosed, the turn being the durable log's commit/replay boundary (a bare event between turns is dropped as crash tail on reload); every shipped ask path runs mid-turn already, and idle asks are a deferred design. Answerers are the policy, and they are `approval/request` waterfall listeners. The waterfall buys exactly what the seam needs: with zero listeners the dispatch falls through to the caller-supplied default — `unavailable`, so fail-closed needs no configuration and no code in any deployment; a listener that recognizes the request's agent answers by returning an outcome without calling `next()` (the decision slot is single-occupancy, first answer wins — the same documented semantics as the `fs/write-intent` gate); a listener that does not recognize the agent MUST delegate via `next()` so another answerer or the default gets the question; and listeners dispose with their owning fiber, so an unloaded UI plugin degrades the next ask to `unavailable` instead of leaving a dangling channel. Registration order across sibling plugins is not load-order deterministic (the loader starts siblings concurrently), so a deployment composes ONE terminal answerer and reserves `prepend` listeners for decide-or-delegate gates. @@ -67,7 +67,7 @@ The seam also owns the session-scoped approval policy — the approval knob of t The bridge registers the first real answerer: it resolves the owning session through its existing `WeakMap` reverse map, issues `session/request_permission` with the request's `callId` as the `toolCall` reference and the one-shot options `allow_once`/`reject_once`, and maps the response — selected `allow-once` → `allowed-once`, any other selection → `rejected` (an unknown optionId from a non-conforming client never grants), client `cancelled` → `cancelled`. A request for a foreign agent — or one without a `callId`, since the protocol prompt must attach to a tool call — delegates via `next()`. A rejected RPC (client gone mid-prompt) propagates to the service, which contains it as `unavailable`. Whether a call ASKS at all is policy — a hook or `tools/pre-execute` plugin returning `ask` — never the bridge's own judgment. -The reverse-map ownership seam [the ACP support RFC](2026-06-14-acp-agent-client-protocol.md) laid down is exactly what the answerer routes through, and per-session permission ownership (the blocker recorded in [the multi-session RFC](2026-06-14-acp-multi-session.md)) is what it implements. +The reverse-map ownership seam [the ACP support RFC](../../proposed/feature/2026-06-14-acp-agent-client-protocol.md) laid down is exactly what the answerer routes through, and per-session permission ownership (the blocker recorded in [the multi-session RFC](../../proposed/feature/2026-06-14-acp-multi-session.md)) is what it implements. #### Audit, and what the model sees @@ -75,33 +75,41 @@ The reverse-map ownership seam [the ACP support RFC](2026-06-14-acp-agent-client #### Entities and dependencies -One new package, no cycles: `dsh-approval` peers on `cordis`, `dsh-session` (event-map merge + append), `dsh-agent` (the `Agent` type), `dsh-llm` (`CallId`, via `dsh-brand`). `dsh-tools` and `dsh-acp` each gain a peer edge onto it; the escalation phase's asker lives in `dsh-tool-bash` (see [the sandbox RFC](2026-07-06-sandbox.md) § Escalation), so the sandbox family keeps its ZERO-edge relation (the executor contributes the per-call override mechanism, and transport seams never ask humans questions). The seam is one package, not the capability-seam three: the service body (dispatch + audit) has no replaceable implementation — the replaceable part is the answerer listeners, and those live with their owners (the bridge; future terminal UIs; test scripts). `@cordisjs/plugin-capability` stays orthogonal (a static grant registry answers "is this already authorized", not "ask the user now"), and `subagent-acp`'s child-side `permission` auto-answer is untouched — routing a child's approvals to the parent session remains an explicit future design. +One package, no cycles: `dsh-approval` peers on `cordis`, `dsh-session` (event-map merge + append), `dsh-agent` (the `Agent` type), `dsh-llm` (`CallId`, via `dsh-brand`). `dsh-tools` and `dsh-acp` each peer on it; the escalation phase's asker lives in `dsh-tool-bash` (see [the sandbox RFC](2026-07-06-sandbox.md) § Escalation), so the sandbox family keeps its ZERO-edge relation (the executor contributes the per-call override mechanism, and transport seams never ask humans questions). The seam is one package, not the capability-seam three: the service body (dispatch + audit) has no replaceable implementation — the replaceable part is the answerer listeners, and those live with their owners (the bridge; future terminal UIs; test scripts). `@cordisjs/plugin-capability` stays orthogonal (a static grant registry answers "is this already authorized", not "ask the user now"), and `subagent-acp`'s child-side `permission` auto-answer is untouched — routing a child's approvals to the parent session is deferred (§ Deferred). ### Testing -Coverage named at plan time, per tier ([testing policy](../../../testing.md)). Unit tier: the service's outcome branches (fail-closed default, first-wins slot, delegation, containment, rogue-value normalization, abort-before and abort-during with late-answer discard, fresh ids, fiber-disposal degradation) and the policy tier (both values × dispatch/decide, a `'never'` decision unbypassable even by an answerer prepended AFTER the service, audit pair intact) in `dsh-approval`; the ask routing matrix (grant dispatches; three non-grant reasons pinned verbatim; unmounted and agent-less degrades; the registry's own exhaustiveness backstop against a non-conforming stand-in) in `dsh-tools`; the answerer (wire shape of the prompt, outcome mapping, unknown-option conservatism, foreign-agent and call-less delegation) driven through a real bridge + scripted client in `dsh-acp`. +Unit tier: the service's outcome branches (fail-closed default, first-wins slot, delegation, containment, rogue-value normalization, abort-before and abort-during with late-answer discard, fresh ids, fiber-disposal degradation) and the policy tier (both values × dispatch/decide, a `'never'` decision unbypassable even by an answerer prepended AFTER the service, audit pair intact) in `dsh-approval`; the ask routing matrix (grant dispatches; three non-grant reasons pinned verbatim; unmounted and agent-less degrades; the registry's own exhaustiveness backstop against a non-conforming stand-in) in `dsh-tools`; the answerer (wire shape of the prompt, outcome mapping, unknown-option conservatism, foreign-agent and call-less delegation) driven through a real bridge + scripted client in `dsh-acp`. -Snapshot tier, landing with the staged example: the harness gains scripted permission answers (`permissionAnswers` in a scenario's `input.json`, consumed FIFO; an unscripted prompt answers `cancelled`, fail closed), and the seam's wire gets recorded end to end in that example's suite — both escalation branches driving `session/request_permission` through this seam over scripted answers (grant and rejection), and a recorded `mode-switching` scenario pinning the `'never'` prompt sentence and the policy-switch notice ([the sandbox RFC](2026-07-06-sandbox.md) § Testing). A hook-driven recorded `ask` (extending the hook matrix's `hook-cc-pretool-ask` with a mounted ApprovalService) remains undone; its deny texts are pinned verbatim at the unit tier. +Snapshot tier: the harness accepts scripted permission answers (`permissionAnswers` in a scenario's `input.json`, consumed FIFO; an unscripted prompt answers `cancelled`, fail closed). The seam's wire is recorded end to end in the sandbox example's suite: both escalation branches drive `session/request_permission` through this seam over scripted answers (grant and rejection), and the recorded `mode-switching` scenario pins the `'never'` prompt sentence and the policy-switch notice ([the sandbox RFC](2026-07-06-sandbox.md) § Testing). + +## Deferred + +- **`allow_always` grant storage** — honoring a persistent grant means designing storage, scope identity (call? path? prefix? session? time window?), and revocation; until designed, only the one-shot options are advertised ([the sandbox RFC](2026-07-06-sandbox.md) § Escalation records the open scope question). +- **A recorded hook-driven `ask` scenario** — the wire is recorded via the sandbox example's escalation branches; the hook-producer variant stays on the unit tier and the hook matrix's `hook-cc-pretool-ask`, with its deny texts pinned verbatim there. +- **Routing a child agent's approvals to the parent session** — `subagent-acp`'s child today auto-answers its own `permission` requests; surfacing them to the parent's editor is its own design. ## Alternatives considered - **A single registered provider instead of waterfall listeners** — rejected: a `registerProvider()` surface forces every composition question — allowlist pre-filters, external hook deciders, scripted test answers, a policy gate in front of a human — inside one provider implementation. The waterfall gets composition, fail-closed absence, and HMR disposal from machinery the runtime already has; the seam's JSDoc pins the single-decision-slot convention instead of inventing a provider registry. -- **[The ACP support RFC](2026-06-14-acp-agent-client-protocol.md)'s inline `tools/pre-execute` permission gate** — rejected, and superseded by this seam: prompting for every bridge-owned call hardwires the asking POLICY into the UI plugin, cannot serve a second asker (sandbox escalation happens after execution starts, with no pre-execute moment), and leaves hooks' `ask` — the vocabulary the interception seams already ship — unserviced. -- **A generic user-interaction seam (`ctx.userInteraction`) instead** — rejected: the two share a skeleton (route by agent, block for a human, handle absence), but approval's contract is narrower in every dimension that matters: a closed outcome vocabulary instead of free text, a protocol-native prompt attached to a tool call instead of a generic form, mandatory fail-closed absence, and audit events. If a generic seam lands later, sharing provider plumbing can be evaluated then. +- **[The ACP support RFC](../../proposed/feature/2026-06-14-acp-agent-client-protocol.md)'s inline `tools/pre-execute` permission gate** — rejected, and superseded by this seam: prompting for every bridge-owned call hardwires the asking POLICY into the UI plugin, cannot serve a second asker (sandbox escalation happens after execution starts, with no pre-execute moment), and leaves hooks' `ask` — the vocabulary the interception seams already ship — unserviced. +- **A generic user-interaction seam (`ctx.userInteraction`) instead** — rejected: the two share a skeleton (route by agent, block for a human, handle absence), but approval's contract is narrower in every dimension that matters: a closed outcome vocabulary instead of free text, a protocol-native prompt attached to a tool call instead of a generic form, mandatory fail-closed absence, and audit events. The generic seam has since shipped (`packages/ui/user-interaction`, the `ask_user_question` tool over ACP elicitation) and approval deliberately still does not ride it — an elicitation form is not a permission prompt, and a free-text answer is not a closed outcome; sharing provider plumbing stays open if the two ever converge. - **Static optional injection in `dsh-tools`** — rejected: the vendored cordis `Inject` type has no optional flag — the object form maps service names to intercept config, and a declared inject gates the fiber. `ctx.get('approval')` is the documented opportunistic-consumption pattern (the `tool-bash` owner-token lookup, the loop's persistence probe), reads presence per call, and degrades correctly across HMR without extra machinery. - **The capability-seam three-package split** — rejected: interface/implementation/consumer fits a seam whose implementation is swappable (bash-local vs bash-sandbox). Here the service body is fixed mechanism and the variable part is listeners that live with their owners — splitting would manufacture an implementation package with nothing in it ("don't split preemptively"). -- **Offering `allow_always` now** — rejected: the protocol can express it, but honoring it means designing grant storage, scope identity (call? path? prefix? session? time window?), and revocation. Advertising an option the harness cannot honor manufactures doomed grants; it stays an open question in the sandbox RFC. +- **Offering `allow_always` now** — rejected: the protocol can express it, but honoring it means designing grant storage, scope identity, and revocation (§ Deferred). Advertising an option the harness cannot honor manufactures doomed grants. -## Acceptance criteria +## Consequences + +What shipped pins — the suites in Testing hold each: - With an ApprovalService and an answerer composed, a hook's `ask` reaches a human and `allowed-once` dispatches the tool; every other outcome denies with its distinct reason. -- A `'never'` session auto-rejects every ask without prompting anyone, states the policy in its prompt, and narrates switches (the shared switching mechanics are [the sandbox RFC](2026-07-06-sandbox.md)'s acceptance criteria). +- A `'never'` session auto-rejects every ask without prompting anyone, states the policy in its prompt, and narrates switches (the shared switching mechanics are pinned in [the sandbox RFC](2026-07-06-sandbox.md)). - Every unanswerable path fails closed to `unavailable`: no service (degrade, verbatim historical text), no listener, a foreign or agent-less request, a throwing answerer, a rogue return value, a dead client connection. - Every `request()` lands exactly one `approval/asked`/`approval/decided` pair on the asking agent's log, replayable, invisible to the model transcript. - Prompts route per-session through the bridge's ownership map; one session's prompt can never reach another session's editor. - A deployment that composes nothing new behaves byte-identically (the snapshot suite's goldens are unchanged). -## Risks +Costs and accepted limits: - **Two decide-eager answerers race for the slot.** Sibling-plugin listener order is not deterministic, so the seam cannot referee competing terminal answerers — mitigated by convention (one terminal answerer per deployment; `prepend` only for decide-or-delegate gates) rather than a priority mechanism the event bus does not have. - **Production exercise rests on one composition.** `ask` has two producer families — the hook bridges through `tools/pre-execute`, and sandbox escalation through its own gate — with the wire recorded in the sandbox example's snapshot suite, so the seam's real-world coverage is that one composition until more deployments compose it. @@ -112,12 +120,12 @@ Snapshot tier, landing with the staged example: the harness gains scripted permi Behavioral and usage questions only — every "why not X?" design question lives in [Alternatives considered](#alternatives-considered), whose job is exactly that. - **What happens in a deployment with no answerer at all (headless, CI)?** Every ask falls through the empty waterfall to `unavailable` and the tool call denies with the "no approval channel is available" reason. Fail-closed is the zero-listener default, not a configuration. -- **Can a grant persist — "always allow this"?** No. `allowed-once` authorizes the single asked-about action and the service stores nothing between requests; `allow_always` is deliberately not advertised until grant storage is designed. +- **Can a grant persist — "always allow this"?** No. `allowed-once` authorizes the single asked-about action and the service stores nothing between requests; `allow_always` is deliberately not advertised until grant storage is designed (§ Deferred). - **What does the model see of an approval?** Only the tool result the asker derives from the outcome — the audit pair never enters the transcript. The three non-grant reasons are distinct, so the model can tell a human "no" from a dismissed prompt from a missing channel. - **Who decides whether a call asks in the first place?** Policy producers: a hook returning `permissionDecision: ask`, any `tools/pre-execute` listener, or the sandbox escalation gate. The seam and the bridge only route and answer; neither injects its own judgment about what deserves a prompt. - **What happens when the user dismisses the prompt, or the turn aborts mid-ask?** Dismissal maps to `cancelled` with its own deny text. An already-aborted signal settles `cancelled` without dispatching; an abort during the ask discards the late answer — one audit pair either way, never two. - **What if the client answers with an option the harness never offered?** Any selection other than the offered `allow_once` maps to `rejected` — an unknown optionId from a non-conforming client can never grant. -- **How do subagents' approvals route?** An agent no answerer owns delegates through the whole waterfall and fails closed — in-process subagents are unanswerable today by design. `subagent-acp`'s child-side auto-answer is untouched; routing a child's asks to the parent's editor is an explicit future design. +- **How do subagents' approvals route?** An agent no answerer owns delegates through the whole waterfall and fails closed — in-process subagents are unanswerable today by design. `subagent-acp`'s child-side auto-answer is untouched; routing a child's asks to the parent's editor is deferred (§ Deferred). - **What does `policy: 'never'` actually change at runtime?** The service resolves every ask for that session to `rejected` before dispatching any answerer (in-service, so no registration order can bypass it); the system prompt states the policy; switches are narrated at boundaries; the audit pair still lands for every auto-rejection. - **What happens across a hot reload, or when the UI plugin unloads mid-session?** Answerers dispose with their owning fiber, so the next ask degrades to `unavailable` instead of hanging on a dead channel; remounting re-registers the answerer with no catch-up state. - **Where does the user see what they are approving?** On the tool call itself: the prompt attaches to the already-streamed call via `callId` — arguments included — and adds the asker's human-readable `reason`; the request carries no argument copy of its own. @@ -127,7 +135,7 @@ Behavioral and usage questions only — every "why not X?" design question lives In-repo precedents this design copies or contrasts with: - The `fs/write-intent` gate (`packages/fs/fs/`) — the documented single-occupancy decision-slot waterfall semantics (first answer wins, delegate via `next()`) the answerer contract reuses. -- `hook/invoked`/`hook/result` — the log-only audit-pair precedent `approval/asked`/`approval/decided` follows; [the hook-bridges RFC](../../implemented/feature/2026-06-30-hook-bridges.md) ships `permissionDecision: ask`, the first producer. -- [The interception-seams RFC](../../implemented/feature/2026-06-30-interception-seams.md) — the `tools/pre-execute` `allow`/`deny`/`ask` vocabulary whose `ask` this seam services. -- [The ACP support RFC](2026-06-14-acp-agent-client-protocol.md) — the `WeakMap` ownership seam the answerer routes through; [the multi-session RFC](2026-06-14-acp-multi-session.md) — the per-session permission-ownership blocker this implements. +- `hook/invoked`/`hook/result` — the log-only audit-pair precedent `approval/asked`/`approval/decided` follows; [the hook-bridges RFC](2026-06-30-hook-bridges.md) ships `permissionDecision: ask`, the first producer. +- [The interception-seams RFC](2026-06-30-interception-seams.md) — the `tools/pre-execute` `allow`/`deny`/`ask` vocabulary whose `ask` this seam services. +- [The ACP support RFC](../../proposed/feature/2026-06-14-acp-agent-client-protocol.md) — the `WeakMap` ownership seam the answerer routes through; [the multi-session RFC](../../proposed/feature/2026-06-14-acp-multi-session.md) — the per-session permission-ownership blocker this implements. - The opportunistic `ctx.get()` consumption pattern (`tool-bash`'s owner-token lookup, the loop's persistence probe) — how `dsh-tools` consumes the seam without gating its fiber on it. diff --git a/docs/rfc/proposed/feature/2026-07-06-sandbox.md b/docs/rfc/implemented/feature/2026-07-06-sandbox.md similarity index 85% rename from docs/rfc/proposed/feature/2026-07-06-sandbox.md rename to docs/rfc/implemented/feature/2026-07-06-sandbox.md index 444f93502f..b9678e866e 100644 --- a/docs/rfc/proposed/feature/2026-07-06-sandbox.md +++ b/docs/rfc/implemented/feature/2026-07-06-sandbox.md @@ -1,6 +1,6 @@ # RFC: The subprocess sandbox — confinement seam, native runners, escalation, and per-session modes -Status: proposed +Status: implemented ## Problem @@ -10,13 +10,13 @@ The harness is an SDK, so confinement must be a capability developers COMPOSE: w Confinement alone leaves two gaps. A denial with no escalation path is terminal — the model can only give up, which pressure-cooks operators into configuring `workspace-write` or `danger-full-access` globally and defeats the sandbox. And the model-visible knobs (the sandbox mode, the approval policy) change over an agent's lifetime — an ACP user flips a per-session setting, an operator edits `cordis.yml` while the process is down — while the model must never act on a stale belief about them: what IS the state on every request, what changed while the agent lives, and what changed while nobody was watching all need answers. -## Proposal +## Decision One seam, one per-platform chain of local backends, one consumer, and two levers on top: a per-call escalation path and per-session runtime modes. Everything below composes from the leaf `cordis.yml`; nothing touches `agent-loop`. The scope is deliberately bounded: the phases this RFC names but does not design — per-session workspace root, cross-family fs enforcement, the `subagent-acp` consumer, more environments, a Windows chain — are listed under § Deferred phases, each a follow-up design, not a config knob. ### How a deployment uses it -Three `cordis.yml` entries turn an unconfined coding agent into the sandboxed product path; `examples/sandbox-acp-agent`, the composition staged to land with this design's implementation, is exactly this tree: +Three `cordis.yml` entries turn an unconfined coding agent into the sandboxed product path; [`examples/sandbox-acp-agent`](../../../../examples/sandbox-acp-agent/README.md) is this composition, live: ```yaml - id: sandbox @@ -35,7 +35,8 @@ The swap is invisible to every consumer of `ctx.bash`: the bash tools, hook comm Misconfiguration fails loud: `mode` outside the closed vocabulary is rejected at plugin load, and a host with no usable backend throws the structured `SANDBOX_UNAVAILABLE` — at `confine()` before the command ever spawns — rather than degrading to unconfined execution. `runnerCommand` on `dsh-sandbox-local` is the operator's explicit assertion of a bwrap-compatible runner (chain and probes skipped); it doubles as the deterministic fake-runner seam for keyless tests. What the model then experiences: denied file effects come back as result facts with a `[sandbox: file access denied under mode]` marker plus standing instructions not to retry around them; under a confining executor the schema offers `sandbox_permissions` + `justification` for the one-approval escalated retry (validated strictly wider than the session's effective mode at execution); the system prompt deliberately does NOT state the sandbox mode — the model learns the boundary from the marker (which names the mode) when it hits it, instead of preemptively refusing work a standing declaration discourages. What an ACP editor experiences: a `sandbox-mode` and an `approval-policy` config-option select per session (each advertised only when its knob is composable), switchable at runtime; a sandbox switch simply changes what subsequent commands may do, while an approval-policy switch to `'never'` is stated in the prompt and narrated. -The product path, concretely (the escalation arc is what the staged `escalation-approved` snapshot scenario is to record verbatim; the denial leg lands on the real-kernel e2e tier): + +The product path, concretely (the escalation arc is verbatim from the recorded `escalation-approved` scenario; the denial leg is pinned on the real-kernel e2e tier): ``` tool/result … [sandbox: file access denied under read-only mode] ← the write RAN; the kernel refused it @@ -52,9 +53,9 @@ Reject instead and nothing executes: the result is the verbatim `the user reject #### Grounding — verified against the code -- Runtime OS subprocesses exist at exactly two sites: the `ctx.bash` seam's single spawn (`packages/bash/bash-local/src/run.ts`; hook commands flow through `ctx.bash`, so bash confinement covers them transitively) and `subagent-acp`'s child agents (`packages/subagent/subagent-acp/src/run.ts`) — the second consumer that makes a shared seam due rather than preemptive under the [capability seams RFC](../../implemented/architecture/2026-06-13-capability-seams.md)'s "don't split preemptively" rule. +- Runtime OS subprocesses exist at exactly two sites: the `ctx.bash` seam's single spawn (`packages/bash/bash-local/src/run.ts`; hook commands flow through `ctx.bash`, so bash confinement covers them transitively) and `subagent-acp`'s child agents (`packages/subagent/subagent-acp/src/run.ts`) — the second consumer that makes a shared seam due rather than preemptive under the [capability seams RFC](../architecture/2026-06-13-capability-seams.md)'s "don't split preemptively" rule. - Everything else executes inside the harness process (fs is in-process `node:fs`, web is in-process `fetch`, every `ToolDefinition.execute()` closes over `ctx`): an OS sandbox wraps `execve` and cannot wrap an in-process function call, so "sandbox any tool" is policy at each tool's seam, never a mechanical transport change. -- `tools/pre-execute` (`allow`/`deny`/`ask`) exists; `ask` degrades to deny today, and [the approval seam proposal](2026-07-06-approval-seam.md) is staged to service it. The fs intent gates are version guards with no mode input yet. +- `tools/pre-execute` (`allow`/`deny`/`ask`) exists, with `ask` serviced by [the approval seam](2026-07-06-approval-seam.md); the fs intent gates are version guards with no mode input yet. - `dsh-bash`'s request/spec split (`BashExecRequest` → `resolve()` → `BashExecSpec`) carries per-call fields the way escalation needs — `owner` is the template: request-optional, spec required-but-nullable, carried verbatim — and the result types already speak `SandboxMode`, so a per-call policy field adds no dependency edge. - The pinned-header snapshot design means a schema/description change churns at most one pinning fixture per suite, and the escalation fields are advertised only under a sandboxing executor — so they live in exactly one pinned header, the sandbox example suite's `mode-switching` fixture. @@ -86,13 +87,13 @@ The model's view is result facts only: the static tool description explains the #### Escalation: one approved wider retry after a denial -The seam level is mechanism only. `BashExecRequest` gains `sandboxMode?: SandboxMode`, an explicit per-call policy input; `BashExecSpec` carries it required-but-nullable (the `owner` pattern: a forgotten field is a visible `undefined`, and `resolve()` is the one explicit defaulting step); `BashExecutor` gains the capability fact `get sandboxMode(): SandboxMode | undefined` — `undefined` in the base class, the configured mode in `SandboxBashExecutor` — so the tool layer can advertise only what the mounted executor honors: composition truth, not configuration. The seam honors ANY explicit mode, including a narrower one; the wider-only ladder is escalation policy and lives in the tool. A non-sandboxing executor (`dsh-bash-local`) carries the field verbatim and confines nothing — the field reaching it means the caller bypassed the tool's gate, and its honest behavior stays unconfined execution, not a guess at enforcement it does not have. +The seam level is mechanism only. `BashExecRequest` carries `sandboxMode?: SandboxMode`, an explicit per-call policy input; `BashExecSpec` carries it required-but-nullable (the `owner` pattern: a forgotten field is a visible `undefined`, and `resolve()` is the one explicit defaulting step); `BashExecutor` exposes the capability fact `get sandboxMode(): SandboxMode | undefined` — `undefined` in the base class, the configured mode in `SandboxBashExecutor` — so the tool layer can advertise only what the mounted executor honors: composition truth, not configuration. The seam honors ANY explicit mode, including a narrower one; the wider-only ladder is escalation policy and lives in the tool. A non-sandboxing executor (`dsh-bash-local`) carries the field verbatim and confines nothing — the field reaching it means the caller bypassed the tool's gate, and its honest behavior stays unconfined execution, not a guess at enforcement it does not have. `SandboxBashExecutor.resolve()` stamps the effective mode — escalation grant > session override > configured default — so `run()`/`start()` read the spec, never the config. The `danger-full-access` branch, the confine call, and the result facts all key off the spec's mode, and the per-task facts map carries each task's mode alongside its wrap facts (`notifyTaskDone()` stamps from the map entry): one escalated call — foreground or background — reports the mode it ACTUALLY ran under while every neighbor keeps its own. The tool gate advertises two extra parameters exactly when `ctx.bash.sandboxMode` reports a confining mode at registration: `sandbox_permissions`, an enum of the closed escalation-target vocabulary — `workspace-write`/`danger-full-access`, every mode a session could ever escalate TO — and `justification`, required together with it. The enum is deliberately NOT cut down to the modes wider than the executor's DEFAULT: schemas are registry-global while the effective mode is per-session and switchable, so a default-relative ladder strands a session overridden NARROWER than the default (with a `danger-full-access` default and a `read-only` override it would advertise nothing at all — confined, but with no lever). Strict widening is instead enforced at EXECUTION against the call's effective mode (session override ?? executor default): a request that is not strictly wider fails closed with its own text and prompts no one. An escalating call resolves approval BEFORE anything executes — no `ctx.approval` composed, or no agent on the execution, fails closed with its own text; otherwise `ctx.approval.request({ agent, toolName: 'bash', callId, reason, signal })` with the audit-self-contained reason `escalate sandbox to ${mode}: ${justification}`, while the UI attaches the prompt to the already-streamed call (the command is visible there; the approval RFC's no-arguments rule holds). The four outcomes map to distinct results: `allowed-once` stamps `sandboxMode` onto the bash request and proceeds; `rejected`, `cancelled`, and `unavailable` each produce their own error text, so the model can tell a human "no" from a dismissed prompt from a missing channel. The grant is consumed by the very call that asked; nothing is stored. -The tool description teaches — and a denied result itself prompts — the SAME-TURN flow when the fields exist: on a denial a wider mode would cure, escalate immediately in that turn by retrying the exact command once with `sandbox_permissions` (the narrowest mode that suffices) + `justification`, without detouring through chat to ask first — the approval prompt raised by the retry IS how the user consents. Never preemptively; a rejected escalation is final for that command. "Only after a real denial" is deliberately model discipline plus human judgment, not harness bookkeeping — the human sees the exact command and justification on the prompt (see Alternatives for why hard-matching is rejected). No new session events anywhere: the attempt is an ordinary `tool/call` whose logged arguments carry the two fields, the decision is the approval seam's `approval/asked`/`approval/decided` pair, the outcome is an ordinary `tool/result` whose sandbox facts name the mode it ran under. The asker lives in `dsh-tool-bash`, NOT the executor: a transport seam has no `agent`, no `callId`, and no business asking humans questions. +The tool description teaches — and a denied result itself prompts — the SAME-TURN flow when the fields exist: on a denial a wider mode would cure, escalate immediately in that turn by retrying the exact command once with `sandbox_permissions` (the narrowest mode that suffices) + `justification`, without detouring through chat to ask first — the approval prompt raised by the retry IS how the user consents. Never speculatively: an escalation is grounded in a real denial — normally the one the command just hit, up front only when the session already denied the same access — and a prompt stating approvals are disabled turns the exception off entirely; a rejected escalation is final for that command. Denial-grounding is deliberately model discipline plus human judgment, not harness bookkeeping — the human sees the exact command and justification on the prompt (see Alternatives for why hard-matching is rejected). No new session events anywhere: the attempt is an ordinary `tool/call` whose logged arguments carry the two fields, the decision is the approval seam's `approval/asked`/`approval/decided` pair, the outcome is an ordinary `tool/result` whose sandbox facts name the mode it ran under. The asker lives in `dsh-tool-bash`, NOT the executor: a transport seam has no `agent`, no `callId`, and no business asking humans questions. Left open, recorded for the phase that picks them up: what a grant's scope identity is beyond the sandbox mode — the exact call, a path, a command prefix, the session, a time window — the question `allow_always` grant storage must answer before that option can be advertised; how cancellation behaves while an approval prompt is pending; and how escalation is defined for `run_in_background` denials that arrive via `bash_output`. @@ -115,7 +116,7 @@ interface SessionEventMap { Each owner exports the same three-piece kit: the event declaration, a pure fold (`effectiveSandboxMode(events)` / `effectiveApprovalPolicy(events)` — a `findLast`, typed to the domain's closed union), and THE write path (`setSandboxMode(session, mode)` / `setApprovalPolicy(session, policy)` — a switch IS its event; nothing mutates state out of band). No shared owner service, no generic facts map, no registry: a third knob copies the ~40-line pattern into its own package. Execution follows the fold on both sides — the bash tool's per-call stamp reads it as the middle rung of the § Escalation precedence chain, and the approval seam's `'never'` gate is [the approval RFC](2026-07-06-approval-seam.md)'s side of the same pattern. -**Visibility is deliberately asymmetric between the knobs.** The SANDBOX mode is stated nowhere and its switches are not narrated: a standing "you are read-only" declaration teaches the model to refuse preemptively (observed in manual sessions: turns where the model would not even attempt a write it could have escalated), while the denial marker already names the mode the command ran under at exactly the moment the boundary matters — behavior, not belief, carries the state, and a switch simply changes what the next command does. The APPROVAL policy keeps both layers, because its failure mode is the opposite: an auto-rejected ask under `'never'` returns "the user rejected …" wording no behavior can disambiguate, so the prompt states `'never'` (and ONLY `'never'` — an `'ask'` promise is unknowable without asking, and absence under a logged header is how the narrator reads `'ask'` back), and an `agent/pre-step` narrator injects at most one coalesced notice per policy switch: idle flip-flops collapse to one notice at the next turn's first step, a net-zero round trip to none, and a mid-turn change is narrated no later than the next step. Its "last told" is in-memory with a log-derived fallback (the folded header's system text parsed against the closed candidate sentence; LAST occurrence wins, so a persona quoting it cannot shadow the real section), so restarts lose nothing; attribution is positional (a knob event after the log's last `request/header*` reads `changed by the user`, a drift with no such event reads `changed by the operator/config`). +**Visibility is deliberately asymmetric between the knobs.** The SANDBOX mode is stated nowhere and its switches are not narrated: a standing "you are read-only" declaration teaches the model to refuse preemptively (observed live: sessions where the model would not even attempt a write it could have escalated), while the denial marker already names the mode the command ran under at exactly the moment the boundary matters — behavior, not belief, carries the state, and a switch simply changes what the next command does. The APPROVAL policy keeps both layers, because its failure mode is the opposite: an auto-rejected ask under `'never'` returns "the user rejected …" wording no behavior can disambiguate, so the prompt states `'never'` (and ONLY `'never'` — an `'ask'` promise is unknowable without asking, and absence under a logged header is how the narrator reads `'ask'` back), and an `agent/pre-step` narrator injects at most one coalesced notice per policy switch: idle flip-flops collapse to one notice at the next turn's first step, a net-zero round trip to none, and a mid-turn change is narrated no later than the next step. Its "last told" is in-memory with a log-derived fallback (the folded header's system text parsed against the closed candidate sentence; LAST occurrence wins, so a persona quoting it cannot shadow the real section), so restarts lose nothing; attribution is positional (a knob event after the log's last `request/header*` reads `changed by the user`, a drift with no such event reads `changed by the operator/config`). **The editor surface** is protocol-native [Session Config Options](https://agentclientprotocol.com/protocol/session-config-options) — the spec's replacement for session modes (slated for removal in ACP v2), already SDK-typed. The bridge advertises one independent `select` per composable knob — `sandbox-mode` (category `mode`) iff the mounted executor confines, `approval-policy` iff the approval seam is composed — with `currentValue` folded from each session's own log, in `session/new` and `session/load` responses. `session/set_config_option` validates against the same closed lists, routes to the domain setter, and returns the complete refreshed state (the spec contract). @@ -125,9 +126,16 @@ Each owner exports the same three-piece kit: the event declaration, a pure fold fs/web/todo execute in-process, so their sandbox semantics are policy at their seams: the fs intent gates deciding by the shared mode vocabulary (§ Deferred phases, cross-family) make `read-only` a real boundary instead of a bash-only approximation — until then the contract says so honestly. No generic per-tool sandbox runtime: a host-mediated tool leaves the process only by returning declarative effects the host validates, which is a rewrite, not a wrapper. -#### Deferred phases +### Testing -Each phase gets its full design when picked up, validated against the code at that time. +- Unit tier (no real runner anywhere): profile dialects, per-platform chain selection (sole candidate unprobed, no chain fails closed, multi-candidate probe order), verdict caching, the fail-closed end, probe-report parsing, and the launcher/`sandbox-exec` CLI contracts via fake runner scripts in `dsh-sandbox-local`; wrapping, policy hand-off, fact stamping, and runner-failure-outranks-denial classification (foreground throw, background `runnerFailed` fact) against a fake provider in `dsh-bash-sandbox`; the error's structured identity in `dsh-sandbox`. The escalation matrix spans the three bash packages: verbatim carry-through in `dsh-bash-local`, stamp/branch/per-task-facts in `dsh-bash-sandbox`, and the capability gate, `justification` pairing, fail-closed texts (pinned verbatim), and grant stamping in `dsh-tool-bash`. The switching surface pins the folds, the stamping precedence, the `'never'` gate, per-session section rendering, the full narrator matrix (cold start, coalescing, net-zero, resume drift with operator wording, positional attribution, persona-shadow hardening), and the bridge's advertisement gating, validation rejections, idle-vs-mid-turn anchoring (dev invariants mounted), and `session/load` reporting over a real two-process JSONL round trip. +- Keyless real-runner e2e, split along the seam and per rung: CI's `sandbox-e2e` matrix runs bwrap and Landlock on Linux (the Landlock leg once per architecture, each confining through the registry-installed launcher) and Seatbelt on macOS against real kernels, failing on a silent all-skip. World-proofs live in `dsh-sandbox-local` (denied writes absent on disk, workspace writes landing, temp-area grants pinned, kernel denial text matching the advertised dialect) and `dsh-bash-sandbox` (the through-`ctx.bash` consumer proofs, including denied-then-overridden-write-lands). This package's own publish path is rehearsed without publishing (`packed-install.e2e.ts`): `pnpm pack`, tarballs installed into a throwaway consumer with the launcher family resolving from the registry, plain `node` confining through the INSTALLED launcher — asserted executable apart, so a mode-stripped binary can never masquerade as a non-enforcing kernel. The switching surface has its own keyless e2e (`examples/sandbox-acp-agent`): the real `cordis.yml` tree advertises both options, honors switches end to end, and rejects out-of-vocabulary values. +- With-key e2e (`examples/sandbox-acp-agent/tests/escalation.e2e.ts`): real model + real runner + the REAL bridge answerer, world-verified — denied under `read-only`, escalates with justification, the scripted editor grants and the retried write lands on disk, while a rejected escalation leaves no write. Self-skips without `DEEPSEEK_API_KEY` or a usable runner (e2e.yml installs bubblewrap so it actually executes in CI). +- Snapshot tier (`examples/sandbox-acp-agent/tests/acp.snapshot.ts`): the keyless config-option wire; the recorded mode-switching arc as the suite's pinned header — necessarily, since mid-session switches emit the `request/header-delta`s the uniformity guard licenses only in the pin — committing both switches, the prompt-section delta and one "changed by the user" notice per knob, and a confined write landing under the switched mode; and both recorded escalation branches over scripted `permissionAnswers` (grant runs confined under `workspace-write`; rejection executes nothing and pins the fail-closed text). Replay re-executes every fixture's bash calls under the host's real runner (ci.yml's snapshot lane installs bubblewrap). Deliberately absent: a fixture carrying a real DENIAL — denial stderr is the backend's dialect and would pin a fixture to its recording platform; the escalation prompts assert the prior denial instead, and the denial→marker path stays on the tiers above. + +## Deferred phases + +Each phase gets its full design when picked up, validated against the code at that time, and lands with unit, real-API e2e, and snapshot coverage at the tiers it touches. - **Per-session workspace root** — the executor's write boundary stays config-fixed for its lifetime while each ACP session has its own cwd; a per-session root rides the same per-call policy carrier once designed. - **Cross-family boundary** — the fs intent gates decide by the shared mode, making `read-only`/`workspace-write` real boundaries beyond bash. @@ -135,15 +143,6 @@ Each phase gets its full design when picked up, validated against the code at th - **More environments** — an environment-coherent capability group example (e.g. bash+fs against one container). - **Windows chain** — `PLATFORM_CHAINS.win32` is reserved and empty (fail-closed); filling it means a confinement runner from the AppContainer/restricted-token family, shipped from its own repository on the `node-addon-landlock-run` template, plus its profile dialect and denial/runner-failure signatures. -### Testing - -Coverage named at plan time, per tier ([testing policy](../../../testing.md)). - -- Unit tier (no real runner anywhere): profile dialects, per-platform chain selection (sole candidate unprobed, no chain fails closed, multi-candidate probe order), verdict caching, the fail-closed end, probe-report parsing, and the launcher/`sandbox-exec` CLI contracts via fake runner scripts in `dsh-sandbox-local`; wrapping, policy hand-off, fact stamping, and runner-failure-outranks-denial classification (foreground throw, background `runnerFailed` fact) against a fake provider in `dsh-bash-sandbox`; the error's structured identity in `dsh-sandbox`. The escalation matrix spans the three bash packages: verbatim carry-through in `dsh-bash-local`, stamp/branch/per-task-facts in `dsh-bash-sandbox`, and the capability gate, `justification` pairing, fail-closed texts (pinned verbatim), and grant stamping in `dsh-tool-bash`. The switching surface pins the folds, the stamping precedence, the `'never'` gate, per-session section rendering, the full narrator matrix (cold start, coalescing, net-zero, resume drift with operator wording, positional attribution, persona-shadow hardening), and the bridge's advertisement gating, validation rejections, idle-vs-mid-turn anchoring (dev invariants mounted), and `session/load` reporting over a real two-process JSONL round trip. -- Keyless real-runner e2e, split along the seam and per rung: CI's `sandbox-e2e` matrix runs bwrap and Landlock on Linux (the Landlock leg once per architecture, each confining through the registry-installed launcher) and Seatbelt on macOS against real kernels, failing on a silent all-skip. World-proofs live in `dsh-sandbox-local` (denied writes absent on disk, workspace writes landing, temp-area grants pinned, kernel denial text matching the advertised dialect) and `dsh-bash-sandbox` (the through-`ctx.bash` consumer proofs, including denied-then-overridden-write-lands). This package's own publish path is rehearsed without publishing (`packed-install.e2e.ts`): `pnpm pack`, tarballs installed into a throwaway consumer with the launcher family resolving from the registry, plain `node` confining through the INSTALLED launcher — asserted executable apart, so a mode-stripped binary can never masquerade as a non-enforcing kernel. The switching surface has its own keyless e2e (`examples/sandbox-acp-agent`): the real `cordis.yml` tree advertises both options, honors switches end to end, and rejects out-of-vocabulary values. -- With-key e2e (`examples/sandbox-acp-agent/tests/escalation.e2e.ts`): real model + real runner + the REAL bridge answerer, world-verified — denied under `read-only`, escalates with justification, the scripted editor grants and the retried write lands on disk, while a rejected escalation leaves no write. Self-skips without `DEEPSEEK_API_KEY` or a usable runner (e2e.yml installs bubblewrap so it actually executes in CI). -- Snapshot tier (`examples/sandbox-acp-agent/tests/acp.snapshot.ts`, landing with the example): the keyless config-option wire; a recorded mode-switching arc as the suite's pinned header — necessarily, since mid-session switches emit the `request/header-delta`s the uniformity guard licenses only in the pin — committing both switches, the prompt-section delta and one "changed by the user" notice per knob, and a confined write landing under the switched mode; and both escalation branches recorded over scripted `permissionAnswers` (grant runs confined under `workspace-write`; rejection executes nothing and pins the fail-closed text). Replay re-executes every fixture's bash calls under the host's real runner (ci.yml's snapshot lane installs bubblewrap). Deliberately absent: a fixture carrying a real DENIAL — denial stderr is the backend's dialect and would pin a fixture to its recording platform; the escalation prompts assert the prior denial instead, and the denial→marker path stays on the tiers above. - ## Alternatives considered - **Command-string heuristic preflight** — rejected: cannot understand expansion/subprocesses/symlinks; the strict attempt (run it, let the kernel decide) is the only trustworthy denial signal. @@ -164,28 +163,31 @@ Coverage named at plan time, per tier ([testing policy](../../../testing.md)). - **Hard-match the retry to a prior denial** — rejected: command-string identity is fragile (quoting, `workdir`, env prefixes, a pipeline retried as its failing stage) — false-rejects honest retries or is trivially satisfied; the real boundary is the human seeing command + justification. Revisit only if `allow_always` grant storage ever needs machine-checkable scopes. - **A generic `env/state` facts map with an owner service** — rejected: approval and sandbox compose independently, so neither's state may drag in a third package; single-key folds are one `findLast` each, dissolving the owner service; no invariant spans the knobs, so atomic multi-key patches bought nothing. - **Narrate via `agent/user-message` + a bus event** — rejected: it presupposes a turn-entry seam that does not exist (the real seam is `agent/prompt-submit`), and pre-step's position serves both the coalesced turn-entry notice and the mid-turn immediacy bound with one listener. -- **A standing prompt statement of the sandbox mode (+ a switch narrator)** — rejected on live evidence from the first manual sessions: with `Bash commands run under the "read-only" file sandbox.` in every request, the model refused to ATTEMPT denied-then-escalatable work, turning the sandbox into a soft lockout. The denial marker names the mode at the moment it matters and the escalation fields carry the recovery; the approval knob keeps its statement because an auto-rejection is behaviorally indistinguishable from a human "no". +- **A standing prompt statement of the sandbox mode (+ a switch narrator)** — shipped first, then removed on live evidence: with `Bash commands run under the "read-only" file sandbox.` in every request, the model refused to ATTEMPT denied-then-escalatable work (five of twelve turns in the first manual session ended with zero tool calls), turning the sandbox into a soft lockout. The denial marker names the mode at the moment it matters and the escalation fields carry the recovery; the approval knob keeps its statement because an auto-rejection is behaviorally indistinguishable from a human "no". - **Track "last told" with its own bookkeeping events** — rejected: the `request/header*` fold already records the exact prompt the model saw; parsing the closed candidate sentences back replaces a second bookkeeping stream — events are needed only where they ARE the store. - **ACP session modes instead of config options** — rejected: one mode list cannot carry two orthogonal knobs; config options are the spec's designed surface and modes are slated for removal in ACP v2. -## Acceptance criteria +## Consequences + +What shipped pins — the tiers in Testing hold each: - A denied command retried with `sandbox_permissions` + `justification` prompts the user through the composed answerer chain; a grant runs THAT call under the wider mode (result facts say so) while every other call keeps its own effective mode; every non-grant outcome produces its distinct error text and executes nothing. - The escalation fields exist exactly when the mounted executor confines; a request that is not strictly wider than the call's effective mode fails closed with its own text and prompts no one; a deployment with no ApprovalService fails escalating calls closed and leaves plain calls untouched. - The system prompt never states the sandbox mode (an approval `'never'` policy is the one stated knob), and the whole exchange — headers, knob events, notices, approvals, results — reconstructs from the session log alone, with no event types beyond the two knob events. -- N idle-time flips produce at most one anchored event per knob (a net-zero sequence anchors none — a no-op push from a client echoing current selections records nothing); an approval-policy switch is narrated in at most one coalesced notice; a mid-turn sandbox switch is honored by the next call's stamp.- A resumed session's overrides apply and are reported to the editor with no special-casing; a default changed while the process was down is narrated before the session's first new request, attributed to the operator. +- N idle-time flips produce at most one anchored event per knob (a net-zero sequence anchors none — a no-op push from a client echoing current selections records nothing); an approval-policy switch is narrated in at most one coalesced notice; a mid-turn sandbox switch is honored by the next call's stamp. +- A resumed session's overrides apply and are reported to the editor with no special-casing; a default changed while the process was down is narrated before the session's first new request, attributed to the operator. - Two concurrent sessions never see each other's state, notices, or config options. - `agent-loop` is untouched — everything rides `systemPrompt.section`, `SessionEventMap` merging, `agent.inject()`, `agent/pre-step`, `agent/prompt-submit`, and the ACP handler surface. -## Risks +Costs and accepted limits: -- **The one-wrapper illusion is given up knowingly.** A `tools/pre-execute` wrapper plus prompt conventions does not solve sandbox approval — the correct design costs structured denials, native runner probes, per-call policy carriage, and consistent cross-family enforcement, and this RFC pays it. +- **The one-wrapper illusion is given up knowingly.** A `tools/pre-execute` wrapper plus prompt conventions does not solve sandbox approval — the correct design costs structured denials, native runner probes, per-call policy carriage, and consistent cross-family enforcement, and this design pays it. - **`read-only` is not yet a cross-family boundary.** Until the fs intent gates decide by the shared mode, the claim holds for bash only; the contract says so honestly (§ In-process tools). - **Windows has no backend.** Its chain slot is reserved empty — fail-closed, never a fallthrough; filling it is a deferred phase. - **The Seatbelt rung leans on Apple's deprecated-but-shipped `sandbox-exec` CLI.** As darwin's sole candidate it is selected without probing, so a future removal surfaces at execution as the runner-failure classification — re-thrown `SANDBOX_UNAVAILABLE`, the command never runs; fail closed, never open. - **Landlock confinement is only as complete as the running kernel's ABI.** Reported as `enforcement: 'partial'` rather than refused — the deliberate trade that keeps the fallback available on older-kernel hosts. - **The launcher arrives as a registry dependency.** Trusted through its own repository's release pipeline (reviewed C source, native CI builders, byte-pinned publish rehearsal) plus this repo's version pin — the real-kernel e2e legs are what vouch for behavior through the installed bytes. -- **The model may over-ask.** Escalating without a real denial, or picking `danger-full-access` where `workspace-write` suffices: the description steers and the enum forces the ladder, but the human prompt is the actual gate; the `approval/asked` reasons make over-asking auditable, and a `prepend` policy answerer can auto-reject patterns a deployment never wants. +- **The model may over-ask.** Escalating without denial grounding, or picking `danger-full-access` where `workspace-write` suffices: the description steers and the enum forces the ladder, but the human prompt is the actual gate; the `approval/asked` reasons make over-asking auditable, and a `prepend` policy answerer can auto-reject patterns a deployment never wants. - **The advertised target set is static while the effective mode is per-session** (schemas are registry-global) — a session already at the widest mode is still offered the fields. Harmless by construction: the strict-wider check at execution, not the enum, is the safety boundary — a non-widening request fails with its own text and never prompts anyone. - **A granted escalation is not a working sandbox.** An unavailable backend still fails closed even for a granted escalation to a confining mode — at `confine()` when the platform has no chain or every probe fails, at execution when an unprobed sole runner refuses (classified as a sandbox failure, not a command failure) — while a granted `danger-full-access` run never touches the provider at all: there the grant, not the probe, is the authority. - **An idle switch lives in bridge memory until the next turn anchors it.** A crash in that window reverts it (reported honestly on `session/load`), and a session that never runs another turn never persists it — accepted, with the loop-owned idle commit turn named as future work if durability becomes a requirement. @@ -212,8 +214,8 @@ Behavioral and usage questions only — every "why not X?" design question lives In-repo precedents this design copies or contrasts with: -- [The capability-seams RFC](../../implemented/architecture/2026-06-13-capability-seams.md) — the interface/implementation/consumer split and the "don't split preemptively" timing rule the second consumer satisfied. +- [The capability-seams RFC](../architecture/2026-06-13-capability-seams.md) — the interface/implementation/consumer split and the "don't split preemptively" timing rule the second consumer satisfied. - The `dsh-bash` request/spec split and its `owner` field ([the bash vocabulary catalog](../../../core-data-structures/bash.md)) — the per-call carrier template `sandboxMode` rides, and the explicit-`resolve()` defaulting convention. - [The approval seam RFC](2026-07-06-approval-seam.md) — the channel escalation asks through; its answerer waterfall, audit pair, and one-package rationale are recorded there. -- [Event-sourced sessions](../../implemented/architecture/2026-06-11-event-sourced-sessions.md) and [the turn-enclosure invariant](../../implemented/architecture/2026-06-15-turn-enclosure-invariant.md) — the log-as-store foundation the per-session modes fold over, and the commit boundary the anchoring design obeys. -- [The interception-seams RFC](../../implemented/feature/2026-06-30-interception-seams.md) — the `tools/pre-execute` vocabulary the escalation gate deliberately does not reuse (an escalating call has no pre-execute moment of its own). +- [Event-sourced sessions](../architecture/2026-06-11-event-sourced-sessions.md) and [the turn-enclosure invariant](../architecture/2026-06-15-turn-enclosure-invariant.md) — the log-as-store foundation the per-session modes fold over, and the commit boundary the anchoring design obeys. +- [The interception-seams RFC](2026-06-30-interception-seams.md) — the `tools/pre-execute` vocabulary the escalation gate deliberately does not reuse (an escalating call has no pre-execute moment of its own). diff --git a/docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md b/docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md index c321c56d53..1f3f9b071b 100644 --- a/docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md +++ b/docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md @@ -2,7 +2,7 @@ Status: proposed -> **Implementation status (MVP landed):** steps 1, 2, 3, 4, 6, 7, 8 are implemented in `packages/ui/acp` + `examples/acp-agent`. **Step 5 (the `session/request_permission` permission gate) is deferred** — the bridge ships a pass-through (tools run with the executor's full authority) marked `TODO(rfc010-permission-gate)`, and lays down only the `WeakMap` ownership seam the gate will build on. Status stays `proposed` until the gate lands. `session/cancel` is the queue-aware `agent.cancel()`: it aborts a running step, clears queued + steering work, and drops a turn that is about to start, so a queued-but-not-yet-started prompt never runs and a later prompt cannot be batched into the cancelled turn. **Per-session `cwd` is now honored** (lifting the original "launch the server in the workspace root" restriction — see § Deferred): `session/new` accepts any absolute `cwd`, and `session/load` requires the request `cwd` to match the persisted session `cwd` so the editor and bash executor agree on the workspace. +> **Implementation status (MVP landed):** steps 1, 2, 3, 4, 6, 7, 8 are implemented in `packages/ui/acp` + `examples/acp-agent`. **Step 5 (the `session/request_permission` permission gate) is implemented in amended form** — not as this RFC's prepended ask-every-owned-call `tools/pre-execute` listener, but as the bridge's answerer on the [approval seam](../../implemented/feature/2026-07-06-approval-seam.md) (`ctx.approval`): an `ask` from a hook or gate plugin becomes an editor prompt routed through the `WeakMap` ownership seam this RFC laid down; whether a call asks is policy, so with no ask-producing plugin composed, tools keep the executor's full authority. Status stays `proposed` until the remaining deferred surface (modes/config options) settles. `session/cancel` is the queue-aware `agent.cancel()`: it aborts a running step, clears queued + steering work, and drops a turn that is about to start, so a queued-but-not-yet-started prompt never runs and a later prompt cannot be batched into the cancelled turn. **Per-session `cwd` is now honored** (lifting the original "launch the server in the workspace root" restriction — see § Deferred): `session/new` accepts any absolute `cwd`, and `session/load` requires the request `cwd` to match the persisted session `cwd` so the editor and bash executor agree on the workspace. ## Problem diff --git a/docs/rfc/proposed/feature/2026-06-14-acp-multi-session.md b/docs/rfc/proposed/feature/2026-06-14-acp-multi-session.md index a65f6b67eb..94395a5f06 100644 --- a/docs/rfc/proposed/feature/2026-06-14-acp-multi-session.md +++ b/docs/rfc/proposed/feature/2026-06-14-acp-multi-session.md @@ -2,7 +2,7 @@ Status: proposed -> **Implementation status:** the multi-session bridge (steps 1, 3, 4) and the bash task-ownership isolation are implemented in `packages/ui/acp` + `packages/bash/tool-bash`. **Per-session *permission* ownership is deferred** — it depends on [the ACP support permission gate](2026-06-14-acp-agent-client-protocol.md) (`TODO(rfc010-permission-gate)`), which is itself deferred; the `agent→sessionId` reverse map the gate will route through is in place. Step 2's per-session disposer scope is now implemented (see [agent lifecycle & ownership seams](../../implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md)): the factory returns a per-agent `AgentHandle` whose `dispose()` stops the loop, awaits quiescence, unregisters the agent, and removes its session, so a bare client disconnect leaves no registered agent or session-store entry. Status stays `proposed` until per-session permission ownership lands. +> **Implementation status:** implemented in full — the multi-session bridge (steps 1, 3, 4) and the bash task-ownership isolation in `packages/ui/acp` + `packages/bash/tool-bash`; per-session *permission* ownership via the bridge's answerer on [the approval seam](../../implemented/feature/2026-07-06-approval-seam.md), which resolves every permission prompt through the `agent→sessionId` reverse map to the owning editor session and delegates (fail closed) for agents the bridge does not own; and step 2's per-session disposer scope (see [agent lifecycle & ownership seams](../../implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md)) — the factory returns a per-agent `AgentHandle` whose `dispose()` stops the loop, awaits quiescence, unregisters the agent, and removes its session, so a bare client disconnect leaves no registered agent or session-store entry. Status follows [the ACP support RFC](2026-06-14-acp-agent-client-protocol.md), whose remaining deferred surface is modes/config options. > **Target-client note:** Zed is the current target ACP client, and its ACP client maintains a `HashMap` plus `pending_sessions` for concurrent `session/load` calls. The competing simplification to return to one live session per connection was rejected after checking that target-client shape; this RFC remains the path for finishing multiplexing and per-session permission ownership. See [the rejected simplification](../../rejected/simplification/2026-06-20-single-session-acp-bridge.md). diff --git a/examples/AGENTS.md b/examples/AGENTS.md index 3d2a700ca0..d54104a189 100644 --- a/examples/AGENTS.md +++ b/examples/AGENTS.md @@ -2,7 +2,7 @@ Runnable demos showing how the harness is wired. **Examples are NOT workspaces** — each `examples/*/package.json` is a private, dependency-free stub, never built. They are booted as unbuilt `tsx` subprocesses via the cordis Loader reading a `cordis.yml`; the `@deepseek-ai/dsh-*` plugin names in those YAML files resolve through the root `tsconfig.json` `paths` map, not through `node_modules`. -Because examples are not under the `packages/*/src` coverage gate, an example that grows real, reusable *logic* should extract it into a `packages/` package (where it gets the per-file 100% gate and a README). Keep only example-specific glue here: the `cordis.yml` wiring, demo-only mocks/teaching artifacts, and the e2e/snapshot scenarios. There is no `start.ts` — the boot glue (Loader tail, `.env` load, snapshot-mode selection, stdin-dispose lifecycle) lives in each app package's `bin` (`@deepseek-ai/dsh-stdio-agent`, `@deepseek-ai/dsh-acp-agent`), which the `demo:*` scripts invoke against the leaf `cordis.yml`. +Because examples are not under the `packages/*/src` coverage gate, an example that grows real, reusable *logic* should extract it into a `packages/` package (where it gets the per-file 100% gate and a README). Keep only example-specific glue here: the `cordis.yml` wiring, demo-only mocks/teaching artifacts, and the e2e/snapshot scenarios. There is no `start.ts` — the boot glue lives in each app package's `bin` (`@deepseek-ai/dsh-stdio-agent`, `@deepseek-ai/dsh-acp-agent`), which the `demo:*` scripts invoke against the leaf `cordis.yml`. ## Every example ships e2e smokes (keyless + with-key) @@ -13,7 +13,7 @@ Each example must have **both** kinds of end-to-end smoke, because they catch di **Exception — keyless-by-nature examples.** An example whose model is itself a mock/deterministic stand-in (no real provider) has no meaningful with-key smoke; the keyless smoke is the complete requirement. State the exception inline in the test. -A keyless smoke that spawns the example from a temp cwd must set `TSX_TSCONFIG_PATH` to the repo-root tsconfig — the unbuilt `paths` map is found by searching UP from cwd, so a temp cwd outside the repo would otherwise fall back to stale built `lib/`. Pass `--expose-internals` when the example's `cordis.yml` loads the HMR plugin (mirror the `demo:*` script). +A keyless smoke that spawns the example from a temp cwd must set `TSX_TSCONFIG_PATH` to the repo-root tsconfig (the unbuilt `paths` map is found by searching UP from cwd), and pass `--expose-internals` when the `cordis.yml` loads the HMR plugin (mirror the `demo:*` script). ## Current state @@ -22,6 +22,7 @@ A keyless smoke that spawns the example from a temp cwd must set `TSX_TSCONFIG_P | `echo-agent` | `tests/echo.e2e.ts` — boots the real `cordis.yml`, drives the echo tool round-trip and the direct canned reply | **N/A — keyless by nature** (the `mock-echo` model has no real provider) | | `coding-agent` | `tests/keyless-smoke.e2e.ts` — boots the full real tree (dummy key, no prompt → no model call), asserts banner + clean exit; `tests/code-mode-keyless-smoke.e2e.ts` — the same boot guard for the Code Mode overlay | `tests/{full-loop,coding-task,resume,compaction,todo-write}.e2e.ts` — real model + real bash + real todo_write, world-verified; `tests/code-mode.e2e.ts` — a real model composes two bash calls in one `run_code` program; collapsed header, dispatch events, written file all verified | | `cordis-agent` | `tests/keyless-smoke.e2e.ts` — boots the real tree incl. `@deepseek-ai/dsh-tool-cordis` by package name; the tool logic is unit-tested in `packages/cordis/tool-cordis` | `tests/cordis-tools.e2e.ts` — real model mounts a listener (tagged line fires), builds+calls its own tool, composes two mounts via provide/inject | +| `sandbox-acp-agent` | `escalation.e2e.ts` — boots the real tree (sandbox + approval + bridge) keyless: initialize + `session/new` | same file — denied → escalates → a scripted client grants (the write must land) or rejects (it must not); skips without key/runner | | `acp-agent` | `pnpm run test:snapshot` — boots the real ACP subprocess and replays a recorded session keyless (incl. the hook matrix: a scenario per hook point × outcome for BOTH the Claude and Codex bridges — block, deny, ask, context-fold, force-continue); `tests/acp.e2e.ts` also asserts stdout purity without a key | `tests/acp.e2e.ts` — real ACP prompt, verifies a file the agent wrote; `tests/hooks.e2e.ts` — a real `PreToolUse` hook blocks bash, verifies the file is NOT written | See [the root AGENTS.md](../AGENTS.md) for repo-wide conventions and [docs/architecture.md](../docs/architecture.md) for the design. diff --git a/examples/README.md b/examples/README.md index e8a41a366b..f1abfd7ca8 100644 --- a/examples/README.md +++ b/examples/README.md @@ -32,3 +32,9 @@ Run with: `pnpm run demo:cordis` (needs `DEEPSEEK_API_KEY`). See [cordis-agent/R An agent demo exposed as an **Agent Client Protocol (ACP)** server over JSON-RPC stdio, via the [`@deepseek-ai/dsh-acp-agent`](../packages/ui/acp-agent) app — drive it from Zed or any other ACP client. Also the home of the keyless snapshot tests. Run with: `pnpm run demo:acp` (needs `DEEPSEEK_API_KEY`); `pnpm run demo:code-mode acp` boots the same server in Code Mode via the `code-mode.cordis.yml` overlay. See [acp-agent/README.md](acp-agent/README.md) for the Zed setup and the snapshot-test design. + +## sandbox-acp-agent + +The coding agent with its bash executor swapped for the sandbox stack ([`@deepseek-ai/dsh-sandbox-local`](../packages/sandbox/sandbox-local) + [`@deepseek-ai/dsh-bash-sandbox`](../packages/bash/bash-sandbox) — the one-entry executor swap the `ctx.bash` capability seam exists for), served over ACP with [`@deepseek-ai/dsh-approval`](../packages/approval/approval) mounted — the first composition where the approval loop is LIVE: a sandbox denial escalated by the model becomes a `session/request_permission` prompt in the editor, and "Allow once" runs exactly that command under the wider mode. + +Run with: `pnpm run demo:sandbox-acp` (needs `DEEPSEEK_API_KEY`; bwrap, a Landlock-enforcing kernel, or macOS for confined runs). See [sandbox-acp-agent/README.md](sandbox-acp-agent/README.md). diff --git a/examples/sandbox-acp-agent/README.md b/examples/sandbox-acp-agent/README.md new file mode 100644 index 0000000000..ab40214834 --- /dev/null +++ b/examples/sandbox-acp-agent/README.md @@ -0,0 +1,16 @@ +# sandbox-acp-agent + +The coding agent with its bash executor swapped for the sandbox stack ([`@deepseek-ai/dsh-sandbox-local`](../../packages/sandbox/sandbox-local/) + [`@deepseek-ai/dsh-bash-sandbox`](../../packages/bash/bash-sandbox/) — the one-entry executor swap the `ctx.bash` capability seam exists for), served over the **Agent Client Protocol**, plus [`@deepseek-ai/dsh-approval`](../../packages/approval/approval/) — which makes this the first composition where the approval loop is LIVE end to end: bash runs under `read-only`, a denial comes back as the structured marker, the model retries once with `sandbox_permissions` + `justification`, the ACP bridge's answerer turns that ask into a `session/request_permission` prompt in your editor, and "Allow once" runs exactly that command under the wider mode ([sandbox RFC § Escalation](../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)). + +```sh +pnpm run demo:sandbox-acp # needs DEEPSEEK_API_KEY; drive it from Zed or any ACP client +``` + +Zed setup is the same as [acp-agent](../acp-agent/README.md) with this example's command; only the leaf `cordis.yml` differs (the sandbox stack + the approval entry in place of the local bash executor and the extra tool stacks). + +- **Every approval is one-shot** (`Allow once` / `Reject` — no `allow_always`: the harness has no grant storage yet), and a dismissed prompt or a rejected ask fails closed with its own error text; so does every ask when no editor is attached to answer. +- **Two session config options are live** ([sandbox RFC § Per-session mode switching](../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)): a capable client shows `Sandbox` (`read-only`/`workspace-write`/`danger-full-access`) and `Approvals` (`ask`/`never`) selectors per session — a switch is one log-only event on that session's log and execution follows it; the sandbox mode is deliberately NOT stated in the prompt or narrated (the model learns the boundary from the denial marker — behavior, not belief), while an approval switch to `never` is stated and narrated; a resumed session reports its overrides back on `session/load`. +- **The write boundary is config-fixed**: an escalated `workspace-write` run may write under the launch directory (`workspaceRoot: process.cwd()`) plus the platform temp area — a per-session root is config-phase future work in the [sandbox RFC](../../docs/rfc/implemented/feature/2026-07-06-sandbox.md). +- **No usable runner fails closed per command** (structured `SANDBOX_UNAVAILABLE`), and the filesystem tools stay unloaded for the same reason as `sandbox-agent`: they would bypass the bash sandbox. + +Tests: `tests/escalation.e2e.ts` — keyless, it boots the real `cordis.yml` through the Loader as an ACP subprocess, proves the whole tree (sandbox executor + approval service + bridge) initializes and opens a session, and drives the config options end to end (both advertised with composition currents, switches honored and echoed as complete state, out-of-vocabulary values rejected); with a key and a usable runner, a scripted ACP client plays the human — the real model gets denied, escalates, the client answers `allow-once`, and the retried write must land on disk. `tests/acp.snapshot.ts` (the [shared snapshot kit](../../packages/support/acp-snapshot/) over this composition's `cordis.snapshot.yml` replay overlay) pins four scenarios as committed wire bytes: the keyless config-option exchange, the recorded `mode-switching` arc (the suite's pinned header — both switches, their prompt-section deltas, one "changed by the user" notice per knob, and a confined write landing under the switched mode), and both recorded escalation branches (`session/request_permission` answered allow-once / reject-once). Replay re-executes every recorded bash call under the host's real runner — Seatbelt works out of the box on macOS; on Linux install bubblewrap (or build the Landlock launcher) first, exactly what ci.yml's snapshot lane does. No fixture carries a real denial: denial stderr is backend dialect and would pin a fixture to its recording platform (the rationale comment atop the suite file). diff --git a/examples/sandbox-acp-agent/cordis.snapshot.yml b/examples/sandbox-acp-agent/cordis.snapshot.yml new file mode 100644 index 0000000000..b5f8ac73ed --- /dev/null +++ b/examples/sandbox-acp-agent/cordis.snapshot.yml @@ -0,0 +1,30 @@ +# Snapshot-test REPLAY overlay for the sandboxed composition: the SAME app +# tree as cordis.yml, derived from it by an include — the one difference is +# the model backend. A keyless replay run cannot boot the real adapter +# (llm-deepseek's apply() throws without DEEPSEEK_API_KEY), so the include +# patches the live tree at load time: the llm-deepseek entry is disabled by +# id, and the llm-replay entry (which serves a recorded session JSONL — no +# API key, no network) is inserted. Every other entry — the sandbox provider, +# the confined bash executor, the approval seam, the app — IS the live tree. +# The sandbox provider probes for a platform runner per EXECUTION, not at +# boot, so a protocol-only scenario (session config options) replays on hosts +# with no runner at all. +# +# The dsh-acp-agent bin selects this file for DSH_SNAPSHOT=replay (the +# sibling-swap of whatever config path it was handed). The replay fixture +# path comes from $DSH_SNAPSHOT_FILE, set by the snapshot harness. stdout +# stays reserved for the ACP JSON-RPC protocol. +- id: base + name: '@cordisjs/plugin-include' + config: + path: ./cordis.yml + patches: + # The name is an assertion, not an override: the include skips the patch + # (warning) when the id points at a different plugin, so this can never + # disable the wrong entry. + - id: llm-deepseek + name: '@deepseek-ai/dsh-llm-deepseek' + disabled: true + - insert: + - id: llm-replay + name: '@deepseek-ai/dsh-llm-replay' diff --git a/examples/sandbox-acp-agent/cordis.yml b/examples/sandbox-acp-agent/cordis.yml new file mode 100644 index 0000000000..d083e8e3f1 --- /dev/null +++ b/examples/sandbox-acp-agent/cordis.yml @@ -0,0 +1,63 @@ +# The sandbox-acp-agent plugin tree: the sandboxed coding agent served over the +# Agent Client Protocol, with the approval seam composed — the first LIVE +# approval composition. A sandbox denial escalated by the model +# (sandbox_permissions + justification) reaches the EDITOR as a +# session/request_permission prompt through the ACP bridge's answerer, and an +# "Allow once" runs exactly that command under the wider mode. +# +# CRITICAL: this tree loads NO stdout logger and NO hmr — stdout is reserved +# for the ACP JSON-RPC protocol (a property of @deepseek-ai/dsh-acp-agent, +# same as examples/acp-agent). +# +# Requires DEEPSEEK_API_KEY (and optionally DEEPSEEK_BASE_URL) — the +# dsh-acp-agent bin loads the gitignored repo-root .env first (on STDERR only). + +# The DeepSeek adapter. +- id: llm-deepseek + name: '@deepseek-ai/dsh-llm-deepseek' + config: + apiKey: !!js process.env.DEEPSEEK_API_KEY + baseURL: !!js process.env.DEEPSEEK_BASE_URL + models: + - deepseek-v4-flash + +# The sandbox stack: the platform-runner provider (bwrap → per-platform +# Landlock launcher → Seatbelt, functionally probed), then the confined bash executor. +# read-only is the fail-safe default; the write boundary for an escalated +# workspace-write run is workspaceRoot + the platform's temp area. NOTE: the +# workspace root is CONFIG-FIXED for the executor's lifetime (the launch dir +# here), while each ACP session has its own cwd — a per-session root is config- +# phase future work in the sandbox RFC. +- id: sandbox + name: '@deepseek-ai/dsh-sandbox-local' +- id: bash + name: '@deepseek-ai/dsh-bash-sandbox' + config: + mode: read-only + workspaceRoot: !!js process.cwd() + +# The approval seam (ctx.approval — mechanism only, no config): with it +# mounted, the bash tool's escalation gate has a channel, and the ACP bridge +# inside dsh-acp-agent answers for the sessions it owns by prompting the +# editor. Without an editor attached nothing can answer, and every ask fails +# closed. +- id: approval + name: '@deepseek-ai/dsh-approval' + +# The ACP server app: the agent-core spine + JSONL persistence + the ACP +# bridge (whose approval answerer completes the loop). +- id: acp-agent + name: '@deepseek-ai/dsh-acp-agent' + config: + model: deepseek-v4-flash + # Persistence root: $DSH_SNAPSHOT_SESSIONS_ROOT when the snapshot harness + # sets it (so a record run's logs land where the harness harvests them), + # else the local ./.sessions default. + persistenceRoot: !!js process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? './.sessions' + persona: | + You are a coding assistant powered by the {{model}} model. Your working + directory is {{cwd}}. Your bash tool runs under a file sandbox — a + `[sandbox: file access denied …]` result is policy, not a command bug. + + Verify your work by running the code or tests. Keep answers brief and + factual. diff --git a/examples/sandbox-acp-agent/package.json b/examples/sandbox-acp-agent/package.json new file mode 100644 index 0000000000..5a4c9a989e --- /dev/null +++ b/examples/sandbox-acp-agent/package.json @@ -0,0 +1,7 @@ +{ + "name": "sandbox-acp-agent-example", + "description": "Runnable demo: the sandboxed coding agent as an ACP server, with sandbox-escalation approval prompts answered by the editor", + "private": true, + "version": "0.0.1", + "type": "module" +} diff --git a/examples/sandbox-acp-agent/tests/acp.snapshot.ts b/examples/sandbox-acp-agent/tests/acp.snapshot.ts new file mode 100644 index 0000000000..e512443e96 --- /dev/null +++ b/examples/sandbox-acp-agent/tests/acp.snapshot.ts @@ -0,0 +1,67 @@ +import { dirname, join } from 'node:path' +import { fileURLToPath } from 'node:url' +import { defineAcpSnapshotSuite, type Scenario } from '@deepseek-ai/dsh-acp-snapshot' + +/** + * Snapshot suite for the SANDBOXED composition (`../cordis.yml`, swapped to + * the sibling `cordis.snapshot.yml` replay overlay by the bin under + * `DSH_SNAPSHOT=replay`). Replay swaps only the MODEL for the recorded + * transcript — every bash call re-executes for real under the host's actual + * runner (Seatbelt on macOS, bwrap on Linux CI: ci.yml's snapshot lane + * installs bubblewrap for exactly this), so the recorded scenarios double as + * cross-backend confinement regression: an allowed command a runner change + * starts denying fails replay outright. Their commands are limited to + * `cat`/`printf` shapes whose bytes are identical across those backends and + * across GNU/BSD userlands. + * + * Deliberately ABSENT: a scenario whose transcript carries a real sandbox + * DENIAL. The harness-authored `[sandbox: file access denied …]` marker is + * byte-stable, but the denied command's own stderr is the backend's dialect + * (bwrap EROFS "Read-only file system", Landlock EACCES "Permission + * denied", Seatbelt EPERM "Operation not permitted", GNU vs BSD phrasing on + * top), and stderr reaches both compared surfaces — such a fixture replays + * only on the platform that recorded it. The denial→marker path stays on + * dsh-tool-bash's unit tests and the real-kernel sandbox e2e legs + * (.github/workflows/sandbox.yml); the escalation scenarios below sidestep + * it by having the USER assert the prior denial, so the recorded model + * escalates without a platform-variant denial in the log. + */ +const SCENARIOS: Scenario[] = [ + // Protocol-only (keyless, authored): the session config-option surface + // this composition adds — both advertised selects on session/new, the + // complete refreshed state every session/set_config_option answers with, + // and both rejection shapes — as committed wire bytes. No bash runs, so + // this one still replays on runner-less hosts. + { name: 'config-options', hasModelTurn: false, recorded: false }, + // The runtime mode-switching arc, and NECESSARILY the pinned-header + // scenario: an approval-policy switch rewrites its prompt section, and the + // resulting request/header-delta is legal only in the pinning scenario + // (the factory's uniformity guard). The pin commits this composition's + // full header — persona, tool schemas WITH the escalation fields — plus + // the approval delta and its "changed by the user" notice verbatim. The + // SANDBOX switch is deliberately silent (no section, no notice — the + // sandbox RFC's visibility asymmetry): the recorded arc proves it by + // BEHAVIOR, a confined write landing under the switched mode with no + // header change. + { name: 'mode-switching', hasModelTurn: true, recorded: true, pinsHeader: true, expectedHeaderDeltas: 1 }, + // The approval wire end-to-end, under the DEFAULT read-only/ask (a switch + // would emit a header-delta the uniformity guard forbids here): the + // escalating bash call streams, session/request_permission attaches to it + // (allow-once / reject-once), and the scripted answer drives each branch — + // an approved run executes CONFINED under the granted workspace-write; a + // rejected one executes nothing and fails with the deterministic + // rejection text. + { name: 'escalation-approved', hasModelTurn: true, recorded: true }, + { name: 'escalation-rejected', hasModelTurn: true, recorded: true }, +] + +defineAcpSnapshotSuite({ + agent: { + binScript: fileURLToPath(new URL('../../../packages/ui/acp-agent/src/bin.ts', import.meta.url)), + configPath: fileURLToPath(new URL('../cordis.yml', import.meta.url)), + tsconfigPath: fileURLToPath(new URL('../../../tsconfig.json', import.meta.url)), + }, + snapshotsDir: join(dirname(fileURLToPath(import.meta.url)), 'snapshots'), + scenarios: SCENARIOS, + mode: process.env.DSH_SNAPSHOT === 'record' ? 'record' : 'replay', +}) diff --git a/examples/sandbox-acp-agent/tests/escalation.e2e.ts b/examples/sandbox-acp-agent/tests/escalation.e2e.ts new file mode 100644 index 0000000000..93915717a1 --- /dev/null +++ b/examples/sandbox-acp-agent/tests/escalation.e2e.ts @@ -0,0 +1,213 @@ +import { spawn, spawnSync, type ChildProcessWithoutNullStreams } from 'node:child_process' +import { Readable, Writable } from 'node:stream' +import { mkdtemp, readFile, rm } from 'node:fs/promises' +import { tmpdir } from 'node:os' +import { join } from 'node:path' +import { fileURLToPath } from 'node:url' +import { afterEach, describe, expect, it } from 'vitest' +import { + ClientSideConnection, + ndJsonStream, + PROTOCOL_VERSION, + type Agent as AcpAgent, + type Client, + type RequestPermissionRequest, + type RequestPermissionResponse, + type SessionNotification, +} from '@agentclientprotocol/sdk' + +/** + * examples/sandbox-acp-agent end to end. + * + * Keyless smoke: boot the REAL `cordis.yml` through the `dsh-acp-agent` bin as + * an ACP subprocess and drive initialize + session/new — the real-Loader-path + * guard (postmortem 0001) for THIS tree's export shapes, which now include the + * sandbox executor AND the approval service. No prompt is sent, so neither the + * model nor a sandbox runner is ever exercised. + * + * With-key escalation flow (self-skips without DEEPSEEK_API_KEY or a usable + * platform runner): a scripted ACP client plays the human. The real model is + * denied under `read-only`, escalates with `sandbox_permissions` + + * `justification`, the bridge prompts THIS client over + * `session/request_permission`, the client answers `allow-once`, and the + * retried write must land ON DISK (world-verified). The session cwd is a temp + * dir under the platform temp area, which `workspace-write` grants — so either + * escalation target the model picks can land the write. + */ + +const binScript = fileURLToPath(new URL('../../../packages/ui/acp-agent/src/bin.ts', import.meta.url)) +const configPath = fileURLToPath(new URL('../cordis.yml', import.meta.url)) +const tsxLoader = fileURLToPath(import.meta.resolve('tsx')) +// The subprocess runs from a temp cwd OUTSIDE the repo; point tsx at the repo +// tsconfig so the unbuilt `paths` map resolves (see examples/AGENTS.md). +const repoTsconfig = fileURLToPath(new URL('../../../tsconfig.json', import.meta.url)) + +// A usable confining runner, probed the same way the executor suites do: +// bwrap on Linux, Seatbelt's sandbox-exec on macOS. Without one the strict +// attempt would fail closed (SANDBOX_UNAVAILABLE) instead of producing the +// denial this flow starts from. +const hasBwrap = spawnSync('bwrap', ['--ro-bind', '/', '/', '--dev', '/dev', '--proc', '/proc', '--die-with-parent', '--', 'true'], { + timeout: 5_000, + stdio: 'ignore', +}).status === 0 +const hasSeatbelt = process.platform === 'darwin' && spawnSync('sandbox-exec', ['-p', '(version 1)(allow default)', 'true'], { + timeout: 5_000, + stdio: 'ignore', +}).status === 0 +const hasRunner = hasBwrap || hasSeatbelt + +interface Spawned { + child: ChildProcessWithoutNullStreams + client: ClientSideConnection + updates: SessionNotification['update'][] + permissionRequests: RequestPermissionRequest[] + stderr: string[] +} + +/** Boot the example as an ACP subprocess; the scripted client answers every permission prompt with `answer`. */ +function spawnSandboxAcpAgent(cwd: string, answer: 'allow-once' | 'reject-once'): Spawned { + const child = spawn( + process.execPath, + ['--import', tsxLoader, binScript, configPath], + { + cwd, + // A dummy key lets the deepseek adapter boot keyless (presence-checked at + // apply, used only on a real model call); the with-key tests carry the + // real key, so the fallback is inert there. + env: { ...process.env, DEEPSEEK_API_KEY: process.env.DEEPSEEK_API_KEY ?? 'sk-dummy-for-boot', TSX_TSCONFIG_PATH: repoTsconfig }, + stdio: ['pipe', 'pipe', 'pipe'], + }, + ) + const stderr: string[] = [] + child.stderr.setEncoding('utf8') + child.stderr.on('data', (chunk: string) => stderr.push(chunk)) + + const updates: SessionNotification['update'][] = [] + const permissionRequests: RequestPermissionRequest[] = [] + const stream = ndJsonStream( + Writable.toWeb(child.stdin) as WritableStream, + Readable.toWeb(child.stdout) as ReadableStream, + ) + const makeClient = (_agent: AcpAgent): Client => ({ + sessionUpdate(params: SessionNotification): Promise { + updates.push(params.update) + return Promise.resolve() + }, + requestPermission(params: RequestPermissionRequest): Promise { + permissionRequests.push(params) + const option = params.options.find(o => o.optionId === answer) + // The scripted human: pick the requested option when the prompt offers + // it; an unexpected prompt shape cancels (fail closed, never grants). + if (option === undefined) return Promise.resolve({ outcome: { outcome: 'cancelled' } }) + return Promise.resolve({ outcome: { outcome: 'selected', optionId: option.optionId } }) + }, + }) + const client = new ClientSideConnection(makeClient, stream) + return { child, client, updates, permissionRequests, stderr } +} + +let spawned: Spawned | undefined +let workdir: string | undefined + +afterEach(async () => { + if (spawned !== undefined && spawned.child.exitCode === null) spawned.child.kill('SIGKILL') + spawned = undefined + if (workdir !== undefined) await rm(workdir, { recursive: true, force: true }) + workdir = undefined +}) + +describe('sandbox-acp-agent keyless smoke (real cordis.yml via the Loader)', () => { + it('boots the tree — sandbox executor + approval service + bridge — and opens a session', async () => { + workdir = await mkdtemp(join(tmpdir(), 'sandbox-acp-smoke-')) + spawned = spawnSandboxAcpAgent(workdir, 'reject-once') + const { client } = spawned + // A dummy key boots the adapter; no prompt is ever sent, so no model call + // and no sandbox runner probe happen. This drives the fiber tree the same + // way an editor would, which is what catches a broken export/inject shape. + const init = await client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + expect(init.protocolVersion).toBe(PROTOCOL_VERSION) + const { sessionId } = await client.newSession({ cwd: workdir, mcpServers: [] }) + expect(sessionId.length).toBeGreaterThan(0) + }, 30_000) + + it('advertises both session config options and honors a switch end to end (no key, no model)', async () => { + workdir = await mkdtemp(join(tmpdir(), 'sandbox-acp-config-')) + spawned = spawnSandboxAcpAgent(workdir, 'reject-once') + const { client } = spawned + await client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + // This tree composes bash-sandbox (mode: read-only) + approval → both + // knobs advertise, currents from composition config. + const created = await client.newSession({ cwd: workdir, mcpServers: [] }) + const advertised = created.configOptions ?? [] + expect(advertised.map(option => [option.id, 'currentValue' in option ? option.currentValue : undefined])) + .toEqual([['sandbox-mode', 'read-only'], ['approval-policy', 'ask']]) + // A switch responds with the COMPLETE refreshed state (the spec contract), + // and the new currents survive in the response of a second switch. + const afterSandbox = await client.setSessionConfigOption({ + sessionId: created.sessionId, configId: 'sandbox-mode', value: 'workspace-write', + }) + const afterApproval = await client.setSessionConfigOption({ + sessionId: created.sessionId, configId: 'approval-policy', value: 'never', + }) + const currents = (afterApproval.configOptions ?? []).map(option => + [option.id, 'currentValue' in option ? option.currentValue : undefined]) + expect(afterSandbox.configOptions?.find(option => option.id === 'sandbox-mode')) + .toMatchObject({ currentValue: 'workspace-write' }) + expect(currents).toEqual([['sandbox-mode', 'workspace-write'], ['approval-policy', 'never']]) + // An out-of-vocabulary value is a protocol error, never a silent default. + await expect(client.setSessionConfigOption({ + sessionId: created.sessionId, configId: 'sandbox-mode', value: 'yolo', + })).rejects.toThrow(/unknown sandbox-mode value/) + }, 30_000) +}) + +describe.skipIf(!process.env.DEEPSEEK_API_KEY || !hasRunner)('sandbox-acp-agent e2e: the live approval loop', () => { + it('denial → model escalation → editor prompt → allow-once → the retried write lands on disk', async () => { + workdir = await mkdtemp(join(tmpdir(), 'sandbox-acp-e2e-')) + spawned = spawnSandboxAcpAgent(workdir, 'allow-once') + const { client, permissionRequests } = spawned + + await client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + const { sessionId } = await client.newSession({ cwd: workdir, mcpServers: [] }) + const res = await client.prompt({ + sessionId, + prompt: [{ type: 'text', text: `Use the bash tool to create the file ${workdir}/escalated.txt containing exactly "ACP_ESCALATION_OK". ` + + 'If the sandbox denies it, retry once with sandbox_permissions and a one-sentence justification, then stop.' }], + }) + expect(['end_turn', 'max_tokens']).toContain(res.stopReason) + + // The WORLD: the approved escalated retry landed the write read-only denied. + const proof = await readFile(join(workdir, 'escalated.txt'), 'utf8') + expect(proof).toContain('ACP_ESCALATION_OK') + + // The CHANNEL: the grant came through a real session/request_permission + // prompt attached to the escalating tool call, offering exactly the + // one-shot options. + expect(permissionRequests.length).toBeGreaterThan(0) + const prompt = permissionRequests[0] + if (prompt === undefined) throw new Error('expected a permission request') + expect(prompt.sessionId).toBe(sessionId) + expect(typeof prompt.toolCall.toolCallId).toBe('string') + expect(prompt.options.map(o => o.optionId).sort()).toEqual(['allow-once', 'reject-once']) + }, 240_000) + + it('a rejected escalation stays denied: no write lands, the turn still ends', async () => { + workdir = await mkdtemp(join(tmpdir(), 'sandbox-acp-e2e-')) + spawned = spawnSandboxAcpAgent(workdir, 'reject-once') + const { client, permissionRequests } = spawned + + await client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} }) + const { sessionId } = await client.newSession({ cwd: workdir, mcpServers: [] }) + const res = await client.prompt({ + sessionId, + prompt: [{ type: 'text', text: `Use the bash tool to create the file ${workdir}/refused.txt containing "NO". ` + + 'If the sandbox denies it, retry once with sandbox_permissions and a one-sentence justification. If that is rejected, stop and say so.' }], + }) + expect(['end_turn', 'max_tokens']).toContain(res.stopReason) + + // The WORLD: rejected means the file never appeared. + await expect(readFile(join(workdir, 'refused.txt'), 'utf8')).rejects.toThrow() + // And the rejection really flowed through a prompt (not a missing channel). + expect(permissionRequests.length).toBeGreaterThan(0) + }, 240_000) +}) diff --git a/examples/sandbox-acp-agent/tests/snapshots/config-options/input.json b/examples/sandbox-acp-agent/tests/snapshots/config-options/input.json new file mode 100644 index 0000000000..043019b659 --- /dev/null +++ b/examples/sandbox-acp-agent/tests/snapshots/config-options/input.json @@ -0,0 +1,10 @@ +{ + "steps": [ + { "op": "initialize" }, + { "op": "newSession" }, + { "op": "setConfigOption", "configId": "sandbox-mode", "value": "workspace-write" }, + { "op": "setConfigOption", "configId": "approval-policy", "value": "never" }, + { "op": "setConfigOptionExpectError", "configId": "sandbox-mode", "value": "yolo" }, + { "op": "setConfigOptionExpectError", "configId": "reasoning-effort", "value": "max" } + ] +} diff --git a/examples/sandbox-acp-agent/tests/snapshots/config-options/session.jsonl b/examples/sandbox-acp-agent/tests/snapshots/config-options/session.jsonl new file mode 100644 index 0000000000..a6f73319bc --- /dev/null +++ b/examples/sandbox-acp-agent/tests/snapshots/config-options/session.jsonl @@ -0,0 +1 @@ +{"type":"session","version":0,"id":"00000000-0000-0000-0000-000000000000","createdAt":0} diff --git a/examples/sandbox-acp-agent/tests/snapshots/config-options/stdout.golden.jsonl b/examples/sandbox-acp-agent/tests/snapshots/config-options/stdout.golden.jsonl new file mode 100644 index 0000000000..3fab1e81fa --- /dev/null +++ b/examples/sandbox-acp-agent/tests/snapshots/config-options/stdout.golden.jsonl @@ -0,0 +1,6 @@ +{"jsonrpc":"2.0","id":1,"result":{"protocolVersion":1,"agentInfo":{"name":"deepseek-harness-acp","version":"0.0.1"},"agentCapabilities":{"loadSession":true,"promptCapabilities":{"image":false,"audio":false,"embeddedContext":false}},"authMethods":[]}} +{"jsonrpc":"2.0","id":2,"result":{"sessionId":"{{sessionId}}","configOptions":[{"id":"sandbox-mode","name":"Sandbox","description":"The file sandbox mode bash commands in this session run under.","category":"mode","type":"select","currentValue":"read-only","options":[{"value":"read-only","name":"read-only"},{"value":"workspace-write","name":"workspace-write"},{"value":"danger-full-access","name":"danger-full-access"}]},{"id":"approval-policy","name":"Approvals","description":"ask: permission prompts reach you; never: they are rejected automatically.","type":"select","currentValue":"ask","options":[{"value":"ask","name":"ask"},{"value":"never","name":"never"}]}]}} +{"jsonrpc":"2.0","id":3,"result":{"configOptions":[{"id":"sandbox-mode","name":"Sandbox","description":"The file sandbox mode bash commands in this session run under.","category":"mode","type":"select","currentValue":"workspace-write","options":[{"value":"read-only","name":"read-only"},{"value":"workspace-write","name":"workspace-write"},{"value":"danger-full-access","name":"danger-full-access"}]},{"id":"approval-policy","name":"Approvals","description":"ask: permission prompts reach you; never: they are rejected automatically.","type":"select","currentValue":"ask","options":[{"value":"ask","name":"ask"},{"value":"never","name":"never"}]}]}} +{"jsonrpc":"2.0","id":4,"result":{"configOptions":[{"id":"sandbox-mode","name":"Sandbox","description":"The file sandbox mode bash commands in this session run under.","category":"mode","type":"select","currentValue":"workspace-write","options":[{"value":"read-only","name":"read-only"},{"value":"workspace-write","name":"workspace-write"},{"value":"danger-full-access","name":"danger-full-access"}]},{"id":"approval-policy","name":"Approvals","description":"ask: permission prompts reach you; never: they are rejected automatically.","type":"select","currentValue":"never","options":[{"value":"ask","name":"ask"},{"value":"never","name":"never"}]}]}} +{"jsonrpc":"2.0","id":5,"error":{"code":-32602,"message":"Invalid params: unknown sandbox-mode value \"yolo\""}} +{"jsonrpc":"2.0","id":6,"error":{"code":-32602,"message":"Invalid params: unknown config option \"reasoning-effort\""}} diff --git a/examples/sandbox-acp-agent/tests/snapshots/escalation-approved/input.json b/examples/sandbox-acp-agent/tests/snapshots/escalation-approved/input.json new file mode 100644 index 0000000000..4cfa610f55 --- /dev/null +++ b/examples/sandbox-acp-agent/tests/snapshots/escalation-approved/input.json @@ -0,0 +1,10 @@ +{ + "steps": [ + { "op": "initialize" }, + { "op": "newSession" }, + { "op": "prompt", "text": "The sandbox already denied writing escalated.txt in this workspace earlier. Retry it now exactly once: one single bash call with the command printf 'escalated\\n' > escalated.txt && cat escalated.txt, with sandbox_permissions set to workspace-write and the justification 'the user asked to write escalated.txt in the workspace'. Do not run it without sandbox_permissions first. I will approve the permission prompt. After the result, reply with the single word DONE and stop." } + ], + "permissionAnswers": [ + { "kind": "allow_once" } + ] +} diff --git a/examples/sandbox-acp-agent/tests/snapshots/escalation-approved/session.jsonl b/examples/sandbox-acp-agent/tests/snapshots/escalation-approved/session.jsonl new file mode 100644 index 0000000000..a754c516c9 --- /dev/null +++ b/examples/sandbox-acp-agent/tests/snapshots/escalation-approved/session.jsonl @@ -0,0 +1,149 @@ +{"type":"session","version":0,"id":"8f399407-f505-45e5-9058-0994ff7b0865","createdAt":1783486769425,"cwd":"/var/folders/2g/b32ct0qn1d728l_v6tdkjytr0000gn/T/acp-snap-cwd-xKPr5d"} +{"type":"turn/start","seq":0,"time":1783486769426,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":1,"time":1783486769426,"data":{"content":[{"type":"text","text":"The sandbox already denied writing escalated.txt in this workspace earlier. 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sandbox already denied writing escalated.txt in this workspace earlier. 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Then reply with the single word DONE and stop." }, + { "op": "setConfigOption", "configId": "sandbox-mode", "value": "workspace-write" }, + { "op": "prompt", "text": "Use the bash tool to run exactly this one command in a single call: printf 'switched\\n' > out.txt && cat out.txt. Then reply with the single word DONE and stop." }, + { "op": "setConfigOption", "configId": "approval-policy", "value": "never" }, + { "op": "prompt", "text": "Without using any tools, state your current approval policy in one short sentence and stop." } + ] +} diff --git a/examples/sandbox-acp-agent/tests/snapshots/mode-switching/session.jsonl b/examples/sandbox-acp-agent/tests/snapshots/mode-switching/session.jsonl new file mode 100644 index 0000000000..97282f0c8a --- /dev/null +++ b/examples/sandbox-acp-agent/tests/snapshots/mode-switching/session.jsonl @@ -0,0 +1,245 @@ +{"type":"session","version":0,"id":"eee406bd-e76b-4d87-8fb7-0ffa2dc94fe6","createdAt":1783613224994,"cwd":"/var/folders/2g/b32ct0qn1d728l_v6tdkjytr0000gn/T/acp-snap-cwd-mNdf7I"} +{"type":"turn/start","seq":0,"time":1783613224997,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":1,"time":1783613224997,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: cat notes.txt. Then reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"step/start","seq":2,"time":1783613224997,"data":{"turn":1,"step":1}} +{"type":"request/header","seq":3,"time":1783613224997,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/2g/b32ct0qn1d728l_v6tdkjytr0000gn/T/acp-snap-cwd-mNdf7I. Your bash tool runs under a file sandbox — a\n`[sandbox: file access denied …]` result is policy, not a command bug.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. 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When a command IS denied and a wider mode would let it succeed, escalate immediately in the SAME turn — the ONE sanctioned exception to a denial: retry the exact same command once with `sandbox_permissions` (the narrowest wider mode that suffices) plus a one-sentence `justification`. Do not detour through chat to ask permission first — the approval prompt raised by that retry IS how the user consents. If the session states approval prompts are disabled, there is no exception: a denial is final — do not set `sandbox_permissions`. Never escalate speculatively: ground the request in a real denial — normally the one THIS command just hit; escalating up front is fine only when this session already denied the same access. 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+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" rejected"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"."}}}} +{"jsonrpc":"2.0","id":7,"result":{"stopReason":"end_turn"}} diff --git a/examples/sandbox-acp-agent/tests/snapshots/mode-switching/workspace/notes.txt b/examples/sandbox-acp-agent/tests/snapshots/mode-switching/workspace/notes.txt new file mode 100644 index 0000000000..a6eda7f939 --- /dev/null +++ b/examples/sandbox-acp-agent/tests/snapshots/mode-switching/workspace/notes.txt @@ -0,0 +1 @@ +hello from the sandboxed workspace diff --git a/knip.json b/knip.json index c0c202a221..296894e877 100644 --- a/knip.json +++ b/knip.json @@ -1,8 +1,8 @@ { "$schema": "https://unpkg.com/knip@5/schema.json", "exclude": ["duplicates"], - "ignoreWorkspaces": ["vendor/*"], "ignoreBinaries": ["bwrap", "sandbox-exec"], + "ignoreWorkspaces": ["vendor/*"], "workspaces": { ".": { "entry": [ @@ -15,6 +15,10 @@ ], "project": ["scripts/**/*.ts", "examples/**/*.ts"] }, + "packages/*/*": { + "entry": ["tests/**/*.spec.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] + }, "packages/bash/bash-sandbox": { "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] @@ -23,10 +27,6 @@ "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] }, - "packages/*/*": { - "entry": ["tests/**/*.spec.ts"], - "project": ["src/**/*.ts", "tests/**/*.ts"] - }, "packages/util/brand": { "project": ["src/**/*.ts"], "ignoreDependencies": ["cordis"] diff --git a/package.json b/package.json index c4cc307893..d3c05dae78 100644 --- a/package.json +++ b/package.json @@ -68,6 +68,7 @@ "demo:code-mode": "node scripts/demo-code-mode.mjs", "demo:cordis": "node --expose-internals --import tsx packages/ui/stdio-agent/src/bin.ts examples/cordis-agent/cordis.yml", "demo:acp": "node --import tsx packages/ui/acp-agent/src/bin.ts examples/acp-agent/cordis.yml", + "demo:sandbox-acp": "node --import tsx packages/ui/acp-agent/src/bin.ts examples/sandbox-acp-agent/cordis.yml", "postinstall": "node scripts/install-lefthook.mjs" }, "devDependencies": { diff --git a/packages/approval/README.md b/packages/approval/README.md index 9876646d23..a228c7936f 100644 --- a/packages/approval/README.md +++ b/packages/approval/README.md @@ -1,9 +1,9 @@ # approval/ — approval family -The asking half of permission handling: one seam through which the harness puts a one-shot question — "may this specific action proceed?" — to whatever answerers a deployment composes, with a closed outcome vocabulary and a fail-closed default. The full design: [the approval-seam RFC](../../docs/rfc/proposed/feature/2026-07-06-approval-seam.md). All **product** packages. +The asking half of permission handling: one seam through which the harness puts a one-shot question — "may this specific action proceed?" — to whatever answerers a deployment composes, with a closed outcome vocabulary and a fail-closed default. The full design: [the approval-seam RFC](../../docs/rfc/implemented/feature/2026-07-06-approval-seam.md). All **product** packages. | Package | Role | ctx key | |---|---|---| -| `approval/` | The `ApprovalService` mechanism (waterfall dispatch, cancellation, audit events) + the vocabulary (`ApprovalRequest`, `ApprovalOutcome`, `ApprovalRequestId`) + the per-session policy tier (`ApprovalPolicy` `'ask'`/`'never'`, the `'approval/policy'` event fold, the prepend gate — [sandbox RFC § Per-session mode switching](../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)) | `ctx.approval` | +| `approval/` | The `ApprovalService` mechanism (waterfall dispatch, cancellation, audit events) + the vocabulary (`ApprovalRequest`, `ApprovalOutcome`, `ApprovalRequestId`) + the per-session policy tier (`ApprovalPolicy` `'ask'`/`'never'`, the `'approval/policy'` event fold, the prepend gate — [sandbox RFC § Per-session mode switching](../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)) | `ctx.approval` | -Answerers live with their owners, not here: the ACP bridge ([`ui/acp`](../ui/acp/)) answers for the editor sessions it owns (and switches each session's policy over ACP config options); tests answer with inline scripted listeners. Consumers today: [`core/tools`](../core/tools/) routes `tools/pre-execute`'s `ask` through the seam (degrading to deny when it is not mounted), and the bash tool's sandbox escalation gate ([`bash/tool-bash`](../bash/tool-bash/), [sandbox RFC § Escalation](../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)). +Answerers live with their owners, not here: the ACP bridge ([`ui/acp`](../ui/acp/)) answers for the editor sessions it owns (and switches each session's policy over ACP config options); tests answer with inline scripted listeners. Consumers today: [`core/tools`](../core/tools/) routes `tools/pre-execute`'s `ask` through the seam (degrading to deny when it is not mounted), and the bash tool's sandbox escalation gate ([`bash/tool-bash`](../bash/tool-bash/), [sandbox RFC § Escalation](../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)). diff --git a/packages/approval/approval/README.md b/packages/approval/approval/README.md index 4a652b4464..b4f3a293c1 100644 --- a/packages/approval/approval/README.md +++ b/packages/approval/approval/README.md @@ -6,8 +6,8 @@ The contract in one line: `ctx.approval.request(req)` puts exactly one question The service is the mechanism, answerers are the policy. Answerers are `approval/request` waterfall listeners occupying a single decision slot: answer for an agent you own by returning an outcome without calling `next()`, or delegate an agent you don't recognize by calling `next()` — the chain's built-in default is `unavailable`, so a deployment with no answerer (headless, CI) fails closed with zero configuration. Registration order across sibling plugins is not load-order deterministic; compose one terminal answerer per deployment and use `prepend` listeners only for decide-or-delegate gates. -The seam also owns the per-session POLICY tier ([the sandbox RFC § Per-session mode switching](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)): `ApprovalPolicy` is `'ask'` (delegate to the answerers — the prior behavior exactly) or `'never'` (deterministically reject without prompting anyone; the strict CI/unattended stance), with `effective = fold(the session's 'approval/policy' events, last one wins) ?? Config.policy` — the session log is the store, written only through `setApprovalPolicy(session, policy)`. The service decides `'never'` inside `request()` itself, before dispatching the waterfall (`'never'` → `'rejected'` with the audit pair still landing; no listener registration, including a later `prepend`, can precede it), states `'never'` — and only `'never'` — in a per-agent prompt section (a "you will be prompted" promise under `'ask'` would overclaim what a headless composition can do; the section scope activates only when `systemPrompt` is composed), and narrates a policy switch to the model in at most one coalesced `agent/pre-step` notice, attributed positionally (an override event after the log's last `request/header*` reads `changed by the user`; a config drift reads `changed by the operator/config`). +The seam also owns the per-session POLICY tier ([the sandbox RFC § Per-session mode switching](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)): `ApprovalPolicy` is `'ask'` (delegate to the answerers — the prior behavior exactly) or `'never'` (deterministically reject without prompting anyone; the strict CI/unattended stance), with `effective = fold(the session's 'approval/policy' events, last one wins) ?? Config.policy` — the session log is the store, written only through `setApprovalPolicy(session, policy)`. The service decides `'never'` inside `request()` itself, before dispatching the waterfall (`'never'` → `'rejected'` with the audit pair still landing; no listener registration, including a later `prepend`, can precede it), states `'never'` — and only `'never'` — in a per-agent prompt section (a "you will be prompted" promise under `'ask'` would overclaim what a headless composition can do; the section scope activates only when `systemPrompt` is composed), and narrates a policy switch to the model in at most one coalesced `agent/pre-step` notice, attributed positionally (an override event after the log's last `request/header*` reads `changed by the user`; a config drift reads `changed by the operator/config`). -One seam serves both ask paths of [the sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md): the `tools/pre-execute` `ask` decision (routed by [`@deepseek-ai/dsh-tools`](../../core/tools/) when this service is mounted; degrading to deny when it is not), and the sandbox post-denial escalated retry (the bash tool's `sandbox_permissions` gate in [`@deepseek-ai/dsh-tool-bash`](../../bash/tool-bash/) — [the sandbox RFC § Escalation](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)). The full design: [the approval-seam RFC](../../../docs/rfc/proposed/feature/2026-07-06-approval-seam.md). +One seam serves both ask paths of [the sandbox RFC](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md): the `tools/pre-execute` `ask` decision (routed by [`@deepseek-ai/dsh-tools`](../../core/tools/) when this service is mounted; degrading to deny when it is not), and the sandbox post-denial escalated retry (the bash tool's `sandbox_permissions` gate in [`@deepseek-ai/dsh-tool-bash`](../../bash/tool-bash/) — [the sandbox RFC § Escalation](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)). The full design: [the approval-seam RFC](../../../docs/rfc/implemented/feature/2026-07-06-approval-seam.md). Answerers today: the ACP bridge ([`@deepseek-ai/dsh-acp`](../../ui/acp/)) forwards to the editor's `session/request_permission` prompt for agents it owns. The audit events are log-only session records — the model only ever sees the tool result the asker derives from the outcome. diff --git a/packages/bash/bash-local/README.md b/packages/bash/bash-local/README.md index 069adb3576..1ac8a7d06b 100644 --- a/packages/bash/bash-local/README.md +++ b/packages/bash/bash-local/README.md @@ -27,4 +27,4 @@ Design surveyed against the bash tools of Claude Code, OpenCode, Codex, and pi; ## Sandboxing -Execution policy does NOT belong in this package: this executor always runs commands unconfined. Confinement is [`dsh-bash-sandbox`](../bash-sandbox/README.md), which extends this executor verbatim and confines commands under the `ctx.sandbox` seam's bwrap/Landlock/Seatbelt backends ([sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)); per-call allow/deny/ask policy belongs on the `tools/pre-execute` gate. +Execution policy does NOT belong in this package: this executor always runs commands unconfined. Confinement is [`dsh-bash-sandbox`](../bash-sandbox/README.md), which extends this executor verbatim and confines commands under the `ctx.sandbox` seam's bwrap/Landlock/Seatbelt backends ([sandbox RFC](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)); per-call allow/deny/ask policy belongs on the `tools/pre-execute` gate. diff --git a/packages/bash/bash-sandbox/README.md b/packages/bash/bash-sandbox/README.md index 9ceb793e27..2a5ae63b8e 100644 --- a/packages/bash/bash-sandbox/README.md +++ b/packages/bash/bash-sandbox/README.md @@ -14,7 +14,7 @@ Semantics: - **Denials are result facts.** A failed run whose stderr carries the selected backend's own denial dialect — the signatures the provider stamps on every wrap (EROFS text under bwrap, EACCES under Landlock, EPERM under Seatbelt) — is reported as `BashRunResult.sandbox.denied: true` (conservative classification, read from the collected stderr tail); every CONFINED run also carries the mode it executed under (`result.sandbox.mode`) and the provider's enforcement completeness (`result.sandbox.enforcement`: `full`, or `partial` on an older Landlock ABI). - **Runner failures are sandbox failures, never task failures.** A failed run matching the wrap's `runnerFailureSignatures` (the runner's own error prefix — also what the shell prints for a missing runner) means the sandbox itself broke and the command NEVER RAN; the check outranks denial classification because a runner's error text can contain denial words. The foreground path re-throws it as the structured fail-closed `SANDBOX_UNAVAILABLE` error, with the runner's first stderr line as the cause; a settled background task stamps `task.sandbox.runnerFailed` instead (no error channel remains after settle), which `bash_output` renders as its own marker. -- **Config-time default, per-call policy.** The DEFAULT mode is fixed by this entry's config for the executor's lifetime; `resolve()` stamps it onto every spec, and an explicit request-level `sandboxMode` override — set by the tool layer only for a call whose wider mode a human granted through `ctx.approval` ([the sandbox RFC § Escalation](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)) — makes THAT call run, classify, and report under its own mode while every neighbor keeps the default (background facts are stamped per task at settle). The capability fact `ctx.bash.sandboxMode` reports the configured default so the tool layer advertises escalation only when this executor is mounted. The model learns of the sandbox only through result facts — the static bash tool description explains the denial marker; there is no current-mode statement in the system prompt. +- **Config-time default, per-call policy.** The DEFAULT mode is fixed by this entry's config for the executor's lifetime; `resolve()` stamps it onto every spec, and an explicit request-level `sandboxMode` override — set by the tool layer only for a call whose wider mode a human granted through `ctx.approval` ([the sandbox RFC § Escalation](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)) — makes THAT call run, classify, and report under its own mode while every neighbor keeps the default (background facts are stamped per task at settle). The capability fact `ctx.bash.sandboxMode` reports the configured default so the tool layer advertises escalation only when this executor is mounted. The model learns of the sandbox only through result facts — the static bash tool description explains the denial marker; there is no current-mode statement in the system prompt. - **File effects only.** Network and process visibility are deliberately not restricted — the mode vocabulary does not pretend to cover what the backend does not enforce. - Process mechanics (spawn, process-group kills, output collection/spill, background tasks, credential scrub) are inherited verbatim from [`dsh-bash-local`](../bash-local/); the runner ladder, probes, and the per-platform Landlock launcher packages live with [`dsh-sandbox-local`](../../sandbox/sandbox-local/). diff --git a/packages/bash/bash-sandbox/src/index.ts b/packages/bash/bash-sandbox/src/index.ts index d4f7d867ad..7089f3c239 100644 --- a/packages/bash/bash-sandbox/src/index.ts +++ b/packages/bash/bash-sandbox/src/index.ts @@ -31,7 +31,7 @@ * * Deny-only at the seam, escalation at the tool: a denial is a reported FACT * here, and the one-shot user-approved escalated retry of a denied action - * (docs/rfc/proposed/feature/2026-07-06-sandbox.md) is driven by + * (docs/rfc/implemented/feature/2026-07-06-sandbox.md) is driven by * `dsh-tool-bash` through `ctx.approval` — this executor's contribution is the * per-call `sandboxMode` override it honors in {@link resolve}: an escalated * call runs (and classifies, and reports) under ITS granted mode while every diff --git a/packages/bash/bash/README.md b/packages/bash/bash/README.md index 5a1aff3588..ac7e00c3a3 100644 --- a/packages/bash/bash/README.md +++ b/packages/bash/bash/README.md @@ -30,7 +30,7 @@ Implementations subclass `BashExecutor`, implement the abstract methods, and cal ## Vocabulary -`BashExecRequest` (command, workdir?, timeoutMs?, signal?, stdin?, env?, owner?, sandboxMode?) resolves to `BashExecSpec` (command, workdir, timeoutMs, signal?, stdin?, env?, owner, sandboxMode) before execution; `owner` and `sandboxMode` are optional on the request and **required-but-nullable** on the resolved spec, so a forgotten one is a visible `undefined` rather than a silently-absent property. `sandboxMode` is the explicit per-call sandbox-policy input: an escalation grant a human just issued ([the sandbox RFC § Escalation](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md), which outranks) or the session's standing override ([the sandbox RFC § Per-session mode switching](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)); a sandboxing executor's `resolve()` stamps its configured default when the request carries none, and a non-sandboxing executor carries the field verbatim and confines nothing. +`BashExecRequest` (command, workdir?, timeoutMs?, signal?, stdin?, env?, owner?, sandboxMode?) resolves to `BashExecSpec` (command, workdir, timeoutMs, signal?, stdin?, env?, owner, sandboxMode) before execution; `owner` and `sandboxMode` are optional on the request and **required-but-nullable** on the resolved spec, so a forgotten one is a visible `undefined` rather than a silently-absent property. `sandboxMode` is the explicit per-call sandbox-policy input: an escalation grant a human just issued ([the sandbox RFC § Escalation](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md), which outranks) or the session's standing override ([the sandbox RFC § Per-session mode switching](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)); a sandboxing executor's `resolve()` stamps its configured default when the request carries none, and a non-sandboxing executor carries the field verbatim and confines nothing. The seam also owns the per-session mode override vocabulary (the sandbox RFC § Per-session mode switching): the log-only `'bash/sandbox-mode'` session event, the pure fold `effectiveSandboxMode(events)` (last event wins; `undefined` means "apply the executor default"), and THE write path `setSandboxMode(session, mode)` — the session log is the store, so an override survives restart by replay and two sessions can never see each other's mode. Writers must respect turn-enclosure: the ACP bridge anchors an idle switch at the next turn rather than appending between turns. The task id (`BashTaskId`) and the `owner` token (`OwnerToken`) are [branded](../../util/brand) — `OwnerToken` is a DISTINCT brand from `SessionId` (the seam never imports `dsh-session`; the `dsh-tool-bash` consumer is the single boundary that casts its `SessionId` into one). `run()` returns `BashRunResult` (exitCode, signal, timedOut, aborted, timeoutMs, stdout/stderr as `CollectedOutput`) and `start()`/`readOutput()` use `BashTask`/`BashTaskRead` for the background side. A sandboxing executor additionally stamps `sandbox` result facts on results and settled tasks (`BashSandboxInfo`: the mode it executed under, the conservative `denied` classification, and — for confined modes — the backend's `enforcement` completeness); the mode/enforcement vocabulary is owned by the [`dsh-sandbox`](../../sandbox/sandbox/) seam, and the facts are documented in [core-data-structures/bash.md](../../../docs/core-data-structures/bash.md). See `src/types.ts` for the full contracts. diff --git a/packages/bash/tool-bash/README.md b/packages/bash/tool-bash/README.md index 1d2b646add..952550fafc 100644 --- a/packages/bash/tool-bash/README.md +++ b/packages/bash/tool-bash/README.md @@ -52,8 +52,8 @@ The `BashExecRequest` seam carries optional `stdin` and `env`, used by the hooks Commands run with the executor's full authority unless a sandboxing executor ([`dsh-bash-sandbox`](../bash-sandbox/)) confines them — the deny-only sandbox reports denials as result facts, rendered here as the denial marker; per-call allow/deny/ask policy is the `tools/pre-execute` waterfall (see docs/architecture.md). -On top of a denial sits the escalation gate ([the sandbox RFC § Escalation](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)): an escalating call (`sandbox_permissions` + `justification`) resolves [`ctx.approval`](../../approval/approval/README.md) BEFORE anything executes — `allowed-once` stamps the granted mode onto the bash request as the seam-level `sandboxMode` override (that one call runs, classifies, and reports under the wider mode; its neighbors keep the session's effective mode), while `rejected`/`cancelled`/`unavailable` and the no-service / no-agent paths each fail closed with their own error text and execute nothing. The seam is consumed opportunistically (`ctx.get('approval')`, the dsh-tools ask-routing pattern); the grant is consumed by the very call that asked, and nothing is stored. The static description teaches — and a denied result itself prompts, via the escalation-available marker appended exactly when the fields are advertised — the SAME-TURN flow: on a denial a wider mode would cure, retry the exact command once with `sandbox_permissions` (the narrowest mode that suffices) + `justification` immediately, without detouring through chat (the approval prompt IS the user's consent); never speculatively — an escalation is grounded in a real denial (up-front only when the session already denied the same access), a prompt-stated approvals-disabled policy turns the exception off entirely, and a rejected escalation is final for that command. +On top of a denial sits the escalation gate ([the sandbox RFC § Escalation](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)): an escalating call (`sandbox_permissions` + `justification`) resolves [`ctx.approval`](../../approval/approval/README.md) BEFORE anything executes — `allowed-once` stamps the granted mode onto the bash request as the seam-level `sandboxMode` override (that one call runs, classifies, and reports under the wider mode; its neighbors keep the session's effective mode), while `rejected`/`cancelled`/`unavailable` and the no-service / no-agent paths each fail closed with their own error text and execute nothing. The seam is consumed opportunistically (`ctx.get('approval')`, the dsh-tools ask-routing pattern); the grant is consumed by the very call that asked, and nothing is stored. The static description teaches — and a denied result itself prompts, via the escalation-available marker appended exactly when the fields are advertised — the SAME-TURN flow: on a denial a wider mode would cure, retry the exact command once with `sandbox_permissions` (the narrowest mode that suffices) + `justification` immediately, without detouring through chat (the approval prompt IS the user's consent); never speculatively — an escalation is grounded in a real denial (up-front only when the session already denied the same access), a prompt-stated approvals-disabled policy turns the exception off entirely, and a rejected escalation is final for that command. ## Per-session mode switching -Under a sandboxing executor this plugin makes the session's standing mode override ([the sandbox RFC § Per-session mode switching](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md); the `bash/sandbox-mode` fold owned by [`dsh-bash`](../bash/README.md)) real at EXECUTION: every call is stamped `escalation grant > session override > undefined` onto `BashExecRequest.sandboxMode`; without either, the executor's `resolve()` applies its configured default. Nothing is stamped under a non-sandboxing executor (nothing would honor it) or for an agent-less caller (no session to fold). The prompt deliberately does NOT state the mode and a switch is not narrated: a standing declaration teaches the model to refuse preemptively, while the denial marker already names the mode the command ran under exactly when the boundary is hit — behavior, not belief, carries the state. +Under a sandboxing executor this plugin makes the session's standing mode override ([the sandbox RFC § Per-session mode switching](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md); the `bash/sandbox-mode` fold owned by [`dsh-bash`](../bash/README.md)) real at EXECUTION: every call is stamped `escalation grant > session override > undefined` onto `BashExecRequest.sandboxMode`; without either, the executor's `resolve()` applies its configured default. Nothing is stamped under a non-sandboxing executor (nothing would honor it) or for an agent-less caller (no session to fold). The prompt deliberately does NOT state the mode and a switch is not narrated: a standing declaration teaches the model to refuse preemptively, while the denial marker already names the mode the command ran under exactly when the boundary is hit — behavior, not belief, carries the state. diff --git a/packages/bash/tool-bash/src/index.ts b/packages/bash/tool-bash/src/index.ts index 25775a26b7..3b30e37057 100644 --- a/packages/bash/tool-bash/src/index.ts +++ b/packages/bash/tool-bash/src/index.ts @@ -36,7 +36,7 @@ * docs/architecture.md § Extension And Composition. Under a sandboxing * executor this plugin also advertises the ESCALATION surface * (`sandbox_permissions`/`justification` — the sandbox RFC § Escalation, - * docs/rfc/proposed/feature/2026-07-06-sandbox.md): a command the + * docs/rfc/implemented/feature/2026-07-06-sandbox.md): a command the * sandbox denied may be retried once under a strictly wider mode, resolved * through `ctx.approval` BEFORE anything executes and failing closed on every * unanswerable path. The fields exist only when the mounted executor reports diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts index 68fd63ae25..d188f6579b 100644 --- a/packages/cordis/tool-cordis/src/api-catalog.ts +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -73,6 +73,13 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ 'list(): Agent[]', ], }, + { + key: 'approval', + summary: 'The `ctx.approval` service: dispatches ApprovalRequests to the `approval/request` waterfall and audits every ask/outcome pair to the requesting agent\'s session log.', + methods: [ + 'async request(req: ApprovalRequest): Promise', + ], + }, { key: 'bash', summary: 'Abstract bash execution service.', @@ -125,6 +132,13 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ 'stream(options: GenerateOptions): AsyncIterable', ], }, + { + key: 'sandbox', + summary: 'Abstract process-sandbox service.', + methods: [ + 'abstract confine(argv: readonly string[], policy: SandboxPolicy): ConfinedArgv', + ], + }, { key: 'sessionPersistence', summary: 'Abstract durable session-persistence service.', @@ -279,6 +293,12 @@ export const EVENT_API: readonly EventApiEntry[] = [ signature: '\'agent/turn-continuation\'(agent: Agent, turn: number, defaultDecision: ContinuationDecision, next: () => Promise): Promise', summary: 'Waterfall: override the turn-continuation decision via a typed ContinuationDecision.', }, + { + name: 'approval/request', + mode: 'waterfall', + signature: '\'approval/request\'(this: ApprovalService, req: ApprovalRequest, next: () => Promise): Promise', + summary: 'Waterfall asking the composed answerers to decide one approval request.', + }, { name: 'fs/edit-intent', mode: 'waterfall', @@ -445,6 +465,14 @@ export const TYPE_API: readonly TypeApiEntry[] = [ name: 'AgentStatus', declaration: 'export type AgentStatus = \'idle\' | \'running\' | \'disposed\';', }, + { + name: 'ApprovalOutcome', + declaration: 'export type ApprovalOutcome = \'allowed-once\' | \'rejected\' | \'cancelled\' | \'unavailable\';', + }, + { + name: 'ApprovalRequest', + declaration: 'export interface ApprovalRequest {\n agent: Agent;\n toolName: string;\n callId?: CallId;\n reason?: string;\n signal?: AbortSignal;\n}', + }, { name: 'AskUserQuestionAnswer', declaration: 'export interface AskUserQuestionAnswer {\n answers: AskUserQuestionAnswerItem[];\n}', @@ -475,19 +503,23 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'BashExecRequest', - declaration: 'export interface BashExecRequest {\n command: string;\n workdir?: string | undefined;\n timeoutMs?: number | undefined;\n signal?: AbortSignal | undefined;\n stdin?: string | undefined;\n env?: Record | undefined;\n owner?: OwnerToken | undefined;\n}', + declaration: 'export interface BashExecRequest {\n command: string;\n workdir?: string | undefined;\n timeoutMs?: number | undefined;\n signal?: AbortSignal | undefined;\n stdin?: string | undefined;\n env?: Record | undefined;\n owner?: OwnerToken | undefined;\n sandboxMode?: SandboxMode | undefined;\n}', }, { name: 'BashExecSpec', - declaration: 'export interface BashExecSpec {\n command: string;\n workdir: string;\n timeoutMs: number;\n signal?: AbortSignal | undefined;\n stdin?: string | undefined;\n env?: Record | undefined;\n owner: OwnerToken | undefined;\n}', + declaration: 'export interface BashExecSpec {\n command: string;\n workdir: string;\n timeoutMs: number;\n signal?: AbortSignal | undefined;\n stdin?: string | undefined;\n env?: Record | undefined;\n owner: OwnerToken | undefined;\n sandboxMode: SandboxMode | undefined;\n}', }, { name: 'BashRunResult', - declaration: 'export interface BashRunResult {\n exitCode: number | null;\n signal: NodeJS.Signals | null;\n timedOut: boolean;\n aborted: boolean;\n timeoutMs: number;\n stdout: CollectedOutput;\n stderr: CollectedOutput;\n}', + declaration: 'export interface BashRunResult {\n exitCode: number | null;\n signal: NodeJS.Signals | null;\n timedOut: boolean;\n aborted: boolean;\n timeoutMs: number;\n stdout: CollectedOutput;\n stderr: CollectedOutput;\n sandbox?: BashSandboxInfo;\n}', + }, + { + name: 'BashSandboxInfo', + declaration: 'export interface BashSandboxInfo {\n mode: SandboxMode;\n denied: boolean;\n enforcement?: SandboxEnforcement;\n runnerFailed?: boolean;\n}', }, { name: 'BashTask', - declaration: 'export interface BashTask {\n readonly id: BashTaskId;\n readonly command: string;\n status: BashTaskStatus;\n exitCode: number | null;\n signal: NodeJS.Signals | null;\n readonly done: Promise;\n}', + declaration: 'export interface BashTask {\n readonly id: BashTaskId;\n readonly command: string;\n status: BashTaskStatus;\n exitCode: number | null;\n signal: NodeJS.Signals | null;\n readonly done: Promise;\n sandbox?: BashSandboxInfo;\n}', }, { name: 'BashTaskId', @@ -549,6 +581,14 @@ export const TYPE_API: readonly TypeApiEntry[] = [ name: 'CompactionResult', declaration: 'export interface CompactionResult {\n startSeq: number;\n summarySeq: number;\n endSeq: number;\n summary: ContentBlock[];\n shadowedRange: {\n start: number;\n end: number;\n };\n shadowedSeqs: number[];\n shadowedTokenCount: number;\n}', }, + { + name: 'ConfinedArgv', + declaration: 'export interface ConfinedArgv {\n argv: string[];\n enforcement: SandboxEnforcement;\n denialSignatures: readonly string[];\n runnerFailureSignatures: readonly string[];\n}', + }, + { + name: 'ConfinedSandboxMode', + declaration: 'export type ConfinedSandboxMode = Exclude;', + }, { name: 'ContentBlockMap', declaration: 'export interface ContentBlockMap {\n \'text\': TextBlock;\n \'reasoning\': ReasoningBlock;\n \'tool-call\': ToolCallBlock;\n \'tool-result\': ToolResultBlock;\n}', @@ -673,6 +713,18 @@ export const TYPE_API: readonly TypeApiEntry[] = [ name: 'ResumeAgentOptions', declaration: 'export interface ResumeAgentOptions {\n agentId: AgentId;\n resumeSessionId: SessionId;\n agentOptions?: AgentOptions;\n}', }, + { + name: 'SandboxEnforcement', + declaration: 'export type SandboxEnforcement = \'full\' | \'partial\';', + }, + { + name: 'SandboxMode', + declaration: 'export type SandboxMode = \'read-only\' | \'workspace-write\' | \'danger-full-access\';', + }, + { + name: 'SandboxPolicy', + declaration: 'export interface SandboxPolicy {\n mode: ConfinedSandboxMode;\n workspaceRoot: string;\n}', + }, { name: 'SendOptions', declaration: 'export interface SendOptions {\n source?: MessageSource;\n}', diff --git a/packages/sandbox/README.md b/packages/sandbox/README.md index bc535bbc8a..9e104192d1 100644 --- a/packages/sandbox/README.md +++ b/packages/sandbox/README.md @@ -7,6 +7,6 @@ The confinement half of the [capability-seam split](../../docs/rfc/implemented/a | `sandbox/` | Abstract process-sandbox seam (the `SandboxProvider` contract + the mode/enforcement/policy vocabulary) | `ctx.sandbox` | | `sandbox-local/` | Local backends by platform chain: Linux `bwrap` else the `landlock-run` launcher (the npm-distributed [`node-addon-landlock-run`](https://www.npmjs.com/package/node-addon-landlock-run) family, built and released from its own repository), darwin `sandbox-exec`/Seatbelt — multi-candidate chains functionally probed, sole candidates selected directly, verdict cached, fail-closed | (registers `ctx.sandbox`) | -The seam confines SAME-WORLD subprocesses only (shared filesystem and kernel). Containers, microVMs, and remote executors are NOT backends here — they replace whole capability implementations (`ctx.bash`, `ctx.fs`) as environment-coherent groups; the boundary is recorded in [the sandbox RFC](../../docs/rfc/proposed/feature/2026-07-06-sandbox.md). +The seam confines SAME-WORLD subprocesses only (shared filesystem and kernel). Containers, microVMs, and remote executors are NOT backends here — they replace whole capability implementations (`ctx.bash`, `ctx.fs`) as environment-coherent groups; the boundary is recorded in [the sandbox RFC](../../docs/rfc/implemented/feature/2026-07-06-sandbox.md). -The staged first consumer is the sandboxed bash executor (it hands over the exact `['bash', '-c', command]` argv it is about to spawn). In-process tools (fs/web) cannot be confined by an OS wrapper — their sandbox semantics are policy at their own seams (the sandbox RFC's cross-family phase). +Consumers today: [`bash/bash-sandbox`](../bash/bash-sandbox/) (wraps `['bash', '-c', command]`; see [examples/sandbox-acp-agent](../../examples/sandbox-acp-agent/) for the composed leaf). In-process tools (fs/web) cannot be confined by an OS wrapper — their sandbox semantics are policy at their own seams (the sandbox RFC's cross-family phase). diff --git a/packages/sandbox/sandbox-local/README.md b/packages/sandbox/sandbox-local/README.md index c4ca758aee..abf7511438 100644 --- a/packages/sandbox/sandbox-local/README.md +++ b/packages/sandbox/sandbox-local/README.md @@ -1,6 +1,6 @@ # @deepseek-ai/dsh-sandbox-local -Local implementation of the [`@deepseek-ai/dsh-sandbox`](../sandbox/) seam: wraps a caller's argv in a platform confinement runner. Selection is BY PLATFORM, resolved once and cached: each platform names its runner chain, a chain of one is selected directly (probing arbitrates between candidates — a sole candidate leaves nothing to arbitrate), and a chain of several is probed functionally in preference order. Linux: [`bwrap`](https://github.com/containers/bubblewrap) when its probe passes, else the [`landlock-run`](https://www.npmjs.com/package/node-addon-landlock-run) Landlock launcher (kernel confinement that needs no userns/mount privileges — see the [sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md) for the prebuilt-binary decision and profile-parity notes); darwin: `sandbox-exec` speaking a Seatbelt (SBPL) profile, unprobed. A platform with no chain means `confine()` FAILS CLOSED with the seam's structured `SANDBOX_UNAVAILABLE` error (win32 today: a reserved, deliberately empty chain awaiting an AppContainer-family runner); an unprobed runner that turns out unusable fails closed at EXECUTION instead — it refuses to run the command, and every wrap's `runnerFailureSignatures` let the consumer classify that as a sandbox failure rather than a task failure. Never a silent unconfined passthrough on any path. +Local implementation of the [`@deepseek-ai/dsh-sandbox`](../sandbox/) seam: wraps a caller's argv in a platform confinement runner. Selection is BY PLATFORM, resolved once and cached: each platform names its runner chain, a chain of one is selected directly (probing arbitrates between candidates — a sole candidate leaves nothing to arbitrate), and a chain of several is probed functionally in preference order. Linux: [`bwrap`](https://github.com/containers/bubblewrap) when its probe passes, else the [`landlock-run`](https://www.npmjs.com/package/node-addon-landlock-run) Landlock launcher (kernel confinement that needs no userns/mount privileges — see the [sandbox RFC](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md) for the prebuilt-binary decision and profile-parity notes); darwin: `sandbox-exec` speaking a Seatbelt (SBPL) profile, unprobed. A platform with no chain means `confine()` FAILS CLOSED with the seam's structured `SANDBOX_UNAVAILABLE` error (win32 today: a reserved, deliberately empty chain awaiting an AppContainer-family runner); an unprobed runner that turns out unusable fails closed at EXECUTION instead — it refuses to run the command, and every wrap's `runnerFailureSignatures` let the consumer classify that as a sandbox failure rather than a task failure. Never a silent unconfined passthrough on any path. Policy is per call (`SandboxPolicy`: mode + workspace root); the provider holds only the mechanism and the cached ladder verdict. Every wrap reports the selected runner's `enforcement` (`full`, or `partial` on an older Landlock ABI that governs only a subset of accesses — read from the launcher's `--probe` report line) and its `denialSignatures` — the stderr dialect that rung's kernel speaks on a denied file effect (EROFS text under bwrap, EACCES under Landlock, EPERM under Seatbelt), which stderr-inferring consumers match instead of a cross-runner union. A non-empty `runnerCommand` config is the operator's assertion of a runner that fully enforces the bwrap-shaped profile: the ladder and probes are skipped (the wrap carries both Linux denial dialects, the mechanism being unknown) — also the deterministic fake-runner seam for keyless test tiers. Its runner-failure dialect is the OUTER shell's argv0-scoped failure shapes (`exec: : not found`, `: No such file or directory`, `: Permission denied`) — the consumer re-joins the wrap through `bash -c 'exec …'`, so a missing or unexecutable configured runner classifies as a sandbox failure (fail closed at execution), never as a failing command or a denial. `probeTimeoutMs` (default 5000) bounds each functional probe, the escape hatch for hosts slow enough that a timed-out probe would otherwise misread as `SANDBOX_UNAVAILABLE`. @@ -15,4 +15,4 @@ Every rung has its keyless world-proof (`tests/bwrap.e2e.ts`, `tests/landlock.e2 name: '@deepseek-ai/dsh-sandbox-local' ``` -The staged first consumer is the sandboxed bash executor. +Consumers: [`@deepseek-ai/dsh-bash-sandbox`](../../bash/bash-sandbox/); see [`examples/sandbox-acp-agent`](../../../examples/sandbox-acp-agent/) for the runnable composition. diff --git a/packages/sandbox/sandbox-local/src/index.ts b/packages/sandbox/sandbox-local/src/index.ts index 01189bc78b..2a75a16d2d 100644 --- a/packages/sandbox/sandbox-local/src/index.ts +++ b/packages/sandbox/sandbox-local/src/index.ts @@ -9,7 +9,7 @@ * `bwrap`, else the `landlock-run` Landlock launcher (kernel confinement * that needs no userns/mount privileges; distributed as the npm package * family `node-addon-landlock-run` — the decision recorded in - * docs/rfc/proposed/feature/2026-07-06-sandbox.md); darwin: macOS + * docs/rfc/implemented/feature/2026-07-06-sandbox.md); darwin: macOS * `sandbox-exec` speaking a Seatbelt (SBPL) profile, unprobed. * When the platform has no chain or no candidate passes, * {@link LocalSandboxProvider.confine} FAILS CLOSED with the seam's diff --git a/packages/sandbox/sandbox/README.md b/packages/sandbox/sandbox/README.md index c63b9da5de..ef381625b2 100644 --- a/packages/sandbox/sandbox/README.md +++ b/packages/sandbox/sandbox/README.md @@ -6,6 +6,6 @@ The contract in one line: `ctx.sandbox.confine(argv, policy)` returns the argv t Policy rides the call, not the provider: two consumers may confine under different policies at the same instant (bash under `read-only` while a confined child agent keeps its state directory writable), and an approved escalated retry is just a new call with a wider policy. -**Same-world confinement only.** A backend shares the host's filesystem and kernel (`bwrap`, Landlock, Seatbelt); `workspaceRoot` names a real host path. Containers, microVMs, and remote executors are NOT backends of this seam — they replace whole capability implementations (`ctx.bash`, `ctx.fs`) as environment-coherent groups. The boundary and its rationale: [the sandbox RFC](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md). +**Same-world confinement only.** A backend shares the host's filesystem and kernel (`bwrap`, Landlock, Seatbelt); `workspaceRoot` names a real host path. Containers, microVMs, and remote executors are NOT backends of this seam — they replace whole capability implementations (`ctx.bash`, `ctx.fs`) as environment-coherent groups. The boundary and its rationale: [the sandbox RFC](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md). -Implementations: [`@deepseek-ai/dsh-sandbox-local`](../sandbox-local/) (Linux: `bwrap`, else the per-platform Landlock launcher; macOS: `sandbox-exec`/Seatbelt). The staged first consumer is the sandboxed bash executor (wrapping `['bash', '-c', command]`). +Implementations: [`@deepseek-ai/dsh-sandbox-local`](../sandbox-local/) (Linux: `bwrap`, else the per-platform Landlock launcher; macOS: `sandbox-exec`/Seatbelt). Consumers: [`@deepseek-ai/dsh-bash-sandbox`](../../bash/bash-sandbox/) (wraps `['bash', '-c', command]`). diff --git a/packages/sandbox/sandbox/src/index.ts b/packages/sandbox/sandbox/src/index.ts index 43ee8f3d16..55b9da4540 100644 --- a/packages/sandbox/sandbox/src/index.ts +++ b/packages/sandbox/sandbox/src/index.ts @@ -7,7 +7,7 @@ * npm-distributed `landlock-run` launcher, macOS `sandbox-exec`/Seatbelt) is * the first. * Consumers hand over the exact argv they are about to spawn - * (the staged bash executor wraps `['bash', '-c', command]`; a + * (`@deepseek-ai/dsh-bash-sandbox` wraps `['bash', '-c', command]`; a * subagent backend wraps its child-agent argv) and spawn the returned argv * instead. * @@ -17,7 +17,7 @@ * backends of this seam — they are sibling implementations of whole * capability seams (`ctx.bash`, `ctx.fs`), deployed as environment-coherent * groups; the boundary is recorded in - * docs/rfc/proposed/feature/2026-07-06-sandbox.md. + * docs/rfc/implemented/feature/2026-07-06-sandbox.md. * * @module @deepseek-ai/dsh-sandbox */ diff --git a/packages/support/acp-snapshot/src/suite.ts b/packages/support/acp-snapshot/src/suite.ts index 53e05d7876..0508b37e13 100644 --- a/packages/support/acp-snapshot/src/suite.ts +++ b/packages/support/acp-snapshot/src/suite.ts @@ -95,6 +95,15 @@ export interface Scenario { * Defaults to false. */ pinsHeader?: boolean + /** + * How many `request/header-delta` events this PINNING scenario's fixture + * legitimately carries (default 0). A recorded mid-run header change — a + * config-option switch rewriting a prompt section — is part of the pinned + * surface, committed verbatim like the header itself; any OTHER count + * still fails, so fixture rot stays caught. Meaningless off the pin (the + * live uniformity guard keeps non-pinning scenarios delta-free). + */ + expectedHeaderDeltas?: number /** * Which header-composition class this scenario belongs to. Scenarios that * boot the same config compose the same header; each class has exactly one @@ -406,17 +415,19 @@ export function defineAcpSnapshotSuite(options: SnapshotSuiteOptions): void { } }) - it('every pinning fixture carries exactly one request/header and no deltas', async () => { + it('every pinning fixture carries exactly one request/header and its declared deltas', async () => { // The live uniformity guard runs only in NON-pinning scenarios, so a // class made of just its pinning scenario would otherwise accept a - // re-recorded pin with several headers or a mid-run header-delta — - // shapes the pin design cannot represent. Assert the committed pins - // directly. + // re-recorded pin with several headers or an undeclared mid-run + // header-delta — shapes the pin design cannot represent. Assert the + // committed pins directly; a scenario whose arc legitimately rewrites + // a prompt section declares the exact count via expectedHeaderDeltas. for (const scenario of pinningByClass.values()) { const fixture = await readFile(join(snapshotsDir, scenario.name, 'session.jsonl'), 'utf8') const headers = normalizedHeaders(fixture, fixtureContext(fixture)) expect(headers.length, `${scenario.name}: a pinning fixture must carry exactly one request/header`).toBe(1) - expect(headerDeltaCount(fixture), `${scenario.name}: a pinning fixture must carry no request/header-delta`).toBe(0) + expect(headerDeltaCount(fixture), `${scenario.name}: a pinning fixture must carry exactly its declared request/header-deltas`) + .toBe(scenario.expectedHeaderDeltas ?? 0) } }) diff --git a/packages/ui/acp/README.md b/packages/ui/acp/README.md index 8facac9e0d..1a547d3e4a 100644 --- a/packages/ui/acp/README.md +++ b/packages/ui/acp/README.md @@ -40,7 +40,7 @@ The bridge multiplexes N sessions over one connection. Live sessions are held in ## Session config options -The bridge advertises one independent `select` per composable knob in the `session/new`/`session/load` responses — `sandbox-mode` (`read-only`/`workspace-write`/`danger-full-access`, category `mode`) iff the mounted executor confines (`ctx.get('bash')?.sandboxMode` defined), `approval-policy` (`ask`/`never`) iff the approval seam is composed — with each session's `currentValue` folded from its OWN log (`effectiveSandboxMode`/`effectiveApprovalPolicy` ?? the composition default), so `session/load` reports a resumed session's overrides with no catch-up machinery. `session/set_config_option` validates the value against the same closed vocabulary, routes to the domain's write path (`setSandboxMode`/`setApprovalPolicy` — ONE log-only event on that session's log), and returns the complete refreshed state per the spec. Anchoring honors turn-enclosure: a switch while a turn is open appends immediately (openness read from the LOG — `agent.status` stays `running` between queued turns); an idle switch is held on the session record and anchored at the next turn's `agent/prompt-submit` (inside the turn, before anything assembles, last write per knob — an idle flip-flop anchors as one event), because appending from inside a `session/event` listener would reorder events for later-registered peers. Until anchored the switch lives in bridge memory only: responses overlay it truthfully, and a crash before the next turn reverts it — `session/load` then reports the fold's truth. Design: [the sandbox RFC § Per-session mode switching](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md); protocol matrix: [acp-feature-support.md](acp-feature-support.md) § 6. +The bridge advertises one independent `select` per composable knob in the `session/new`/`session/load` responses — `sandbox-mode` (`read-only`/`workspace-write`/`danger-full-access`, category `mode`) iff the mounted executor confines (`ctx.get('bash')?.sandboxMode` defined), `approval-policy` (`ask`/`never`) iff the approval seam is composed — with each session's `currentValue` folded from its OWN log (`effectiveSandboxMode`/`effectiveApprovalPolicy` ?? the composition default), so `session/load` reports a resumed session's overrides with no catch-up machinery. `session/set_config_option` validates the value against the same closed vocabulary, routes to the domain's write path (`setSandboxMode`/`setApprovalPolicy` — ONE log-only event on that session's log), and returns the complete refreshed state per the spec. Anchoring honors turn-enclosure: a switch while a turn is open appends immediately (openness read from the LOG — `agent.status` stays `running` between queued turns); an idle switch is held on the session record and anchored at the next turn's `agent/prompt-submit` (inside the turn, before anything assembles, last write per knob — an idle flip-flop anchors as one event), because appending from inside a `session/event` listener would reorder events for later-registered peers. Until anchored the switch lives in bridge memory only: responses overlay it truthfully, and a crash before the next turn reverts it — `session/load` then reports the fold's truth. Design: [the sandbox RFC § Per-session mode switching](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md); protocol matrix: [acp-feature-support.md](acp-feature-support.md) § 6. Background-task isolation rides on `dsh-tool-bash`: bash task ids are global and predictable, so each task carries an opaque owner token — the owning agent's `session.header.id` — stored on the task inside the executor (`dsh-bash`'s `ownerOf(id)` seam). `bash_output`/`bash_kill` reject a task whose token differs from the caller's session token, so one session's agent can't read or kill another's task. Ownership is by session TOKEN, not `Agent` object identity — a different `Agent` object on the same session may access the task — and because the token lives on the executor's task it survives a `tool-bash` HMR reload. diff --git a/packages/ui/acp/acp-feature-support.md b/packages/ui/acp/acp-feature-support.md index 0be43b4db6..eb2d5a8fa5 100644 --- a/packages/ui/acp/acp-feature-support.md +++ b/packages/ui/acp/acp-feature-support.md @@ -26,7 +26,7 @@ The bridge implements the **core prompt-turn loop** for N concurrent sessions: i | `session/prompt` | S | ✅ | ✅ | ✅ | Maps to `agent.send`; one in-flight prompt per session; settles on the owning turn's end. | | `session/cancel` | S | ✅ | ✅ | ✅ | Queue-aware `agent.cancel`; settles the in-flight prompt `cancelled`, scoped to the one session. | | `session/set_mode` | S | ❌ | ✅ | ✅ | Session modes deliberately skipped: config options are the spec's replacement (modes are slated for removal in ACP v2), and one mode list cannot carry the two orthogonal knobs (see [§6](#6-session-modes--config-options--models)). | -| `session/set_config_option` | S | ✅ | ✅ | ✅ | Two capability-gated selects — `sandbox-mode` (confining executor mounted) and `approval-policy` (approval seam composed); values validated against the domain vocabularies, one log-only event per switch on the session's own log, complete refreshed state in the response ([sandbox RFC § Per-session mode switching](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)). | +| `session/set_config_option` | S | ✅ | ✅ | ✅ | Two capability-gated selects — `sandbox-mode` (confining executor mounted) and `approval-policy` (approval seam composed); values validated against the domain vocabularies, one log-only event per switch on the session's own log, complete refreshed state in the response ([sandbox RFC § Per-session mode switching](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)). | | model selection | S | ❌ | ✅ | ✅ | No distinct stable `session/set_model` — model is the `model`-category `session/set_config_option`. The bridge fixes the model per-bridge via config; no runtime switch. Codex still uses the legacy `unstable_setSessionModel` ext method. | | `session/list` | S | ❌ | ✅ | ✅ | Gated by `sessionCapabilities.list`. The harness HAS `sessionPersistence.list()` (used internally for load-cwd validation) but does not expose it over ACP. | | `session/delete` | S | ❌ | ✅ | ✅ | Gated by `sessionCapabilities.delete`. | @@ -86,7 +86,7 @@ These are capabilities the bridge would *drive* on the editor. The harness runs | `plan` | S | ❌ | ✅ | ✅ | No agent plan emitted. Both adapters emit real plan entries (Codex's `CodexEventHandler.updatePlan` maps `turn/plan/updated` → `{ sessionUpdate: 'plan', entries }`). | | `available_commands_update` | S | ❌ | ✅ | ✅ | No slash commands advertised. | | `current_mode_update` | S | ❌ | ✅ | ✅ | No session modes. | -| `config_option_update` | S | ❌ | ✅ | ✅ | Config options exist (advertised in `session/new`/`session/load`, switched via `session/set_config_option`), but the bridge never pushes agent-initiated changes — an operator default drift is narrated to the MODEL, not echoed to the editor. Future work in the [sandbox RFC § Per-session mode switching](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md). | +| `config_option_update` | S | ❌ | ✅ | ✅ | Config options exist (advertised in `session/new`/`session/load`, switched via `session/set_config_option`), but the bridge never pushes agent-initiated changes — an operator default drift is narrated to the MODEL, not echoed to the editor. Future work in the [sandbox RFC § Per-session mode switching](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md). | | `usage_update` | S | ❌ | ✅ | ✅ | Token/cost reporting not surfaced (the harness records token usage internally on `assistant/message`). | | `session_info_update` | S | ❌ | ⚠️ | ⚠️ | Session title/metadata not pushed. | @@ -111,7 +111,7 @@ Tool-call presentation is **owned by each tool** (`presentCall` / `presentResult ## 6. Session modes / config options / models -Config options ✅ (the [sandbox RFC § Per-session mode switching](../../../docs/rfc/proposed/feature/2026-07-06-sandbox.md)): the bridge advertises one independent `select` per composable knob — `sandbox-mode` iff the mounted executor confines, `approval-policy` iff the approval seam is composed — with per-session current values folded from each session's own log, and honors `session/set_config_option` end to end (idle switches anchor at the next turn under the turn-enclosure contract). Session MODES stay deliberately unmodeled: config options are the spec's replacement (modes are slated for removal in ACP v2), and one mode list cannot carry two orthogonal knobs. Runtime model selection is still not modeled — the harness fixes the model per-bridge via `AcpConfig.model` (both reference adapters ship a model selector). +Config options ✅ (the [sandbox RFC § Per-session mode switching](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)): the bridge advertises one independent `select` per composable knob — `sandbox-mode` iff the mounted executor confines, `approval-policy` iff the approval seam is composed — with per-session current values folded from each session's own log, and honors `session/set_config_option` end to end (idle switches anchor at the next turn under the turn-enclosure contract). Session MODES stay deliberately unmodeled: config options are the spec's replacement (modes are slated for removal in ACP v2), and one mode list cannot carry two orthogonal knobs. Runtime model selection is still not modeled — the harness fixes the model per-bridge via `AcpConfig.model` (both reference adapters ship a model selector). ## 7. Content blocks diff --git a/scripts/doc-budgets.manifest.json b/scripts/doc-budgets.manifest.json index 52f563b86d..2a6456eaf9 100644 --- a/scripts/doc-budgets.manifest.json +++ b/scripts/doc-budgets.manifest.json @@ -1,11 +1,11 @@ { "AGENTS.md": 1802, "docs/AGENTS.md": 1315, - "docs/architecture.md": 1642, + "docs/architecture.md": 1750, "docs/cordis-primer.md": 550, "docs/defensive-patterns.md": 550, "docs/testing.md": 800, - "examples/AGENTS.md": 653, + "examples/AGENTS.md": 705, "packages/AGENTS.md": 450, "packages/README.md": 710 } diff --git a/scripts/gen-config-catalog.ts b/scripts/gen-config-catalog.ts index eca36286ae..1cbcc007bd 100644 --- a/scripts/gen-config-catalog.ts +++ b/scripts/gen-config-catalog.ts @@ -633,11 +633,17 @@ export function collectConfigCatalog(scanRoot: string = root): CatalogEntry[] { const manifests: { dir: string; pkg: string }[] = [] for (const manifestRel of globSync('packages/*/*/package.json', { cwd: scanRoot }).sort()) { const dir = manifestRel.slice(0, -'/package.json'.length) - const pkg = (JSON.parse(readFileSync(resolve(scanRoot, manifestRel), 'utf8')) as { name?: string }).name + const manifest = JSON.parse(readFileSync(resolve(scanRoot, manifestRel), 'utf8')) as { name?: string; os?: string[]; cpu?: string[] } + const pkg = manifest.name if (!pkg) { violations.push(`${manifestRel} has no "name".`) continue } + if (manifest.os !== undefined && manifest.cpu !== undefined) { + // A per-platform native-binary package (npm os/cpu selection) ships no + // JavaScript at all — nothing to classify, no Config to catalog. + continue + } pkgDirByName.set(pkg, dir) manifests.push({ dir, pkg }) } diff --git a/tsconfig.base.json b/tsconfig.base.json index 80becb532c..66565fb080 100644 --- a/tsconfig.base.json +++ b/tsconfig.base.json @@ -40,10 +40,9 @@ // here. The build graph's project references (tsconfig.build.json) stay // explicit — TS project references have no wildcard form. "@deepseek-ai/dsh-*": [ - "./packages/approval/*/src", "./packages/core/*/src", - "./packages/sandbox/*/src", "./packages/llm/*/src", + "./packages/approval/*/src", "./packages/bash/*/src", "./packages/code-runtime/*/src", "./packages/fs/*/src", @@ -55,6 +54,7 @@ "./packages/timeout/*/src", "./packages/todo/*/src", "./packages/cordis/*/src", + "./packages/sandbox/*/src", "./packages/hooks/*/src", "./packages/session-persistence/*/src", "./packages/ui/*/src", diff --git a/tsconfig.build.json b/tsconfig.build.json index f5015b0906..814b906d80 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -18,12 +18,9 @@ { "path": "./packages/session-persistence/session-persistence-jsonl" }, { "path": "./packages/session-persistence/session-persistence-sqlite" }, { "path": "./packages/core/system-prompt" }, - { "path": "./packages/approval/approval" }, - { "path": "./packages/sandbox/sandbox" }, - { "path": "./packages/sandbox/sandbox-local" }, - { "path": "./packages/bash/bash-sandbox" }, { "path": "./packages/core/agent" }, { "path": "./packages/ui/user-interaction" }, + { "path": "./packages/approval/approval" }, { "path": "./packages/core/tools" }, { "path": "./packages/ui/tool-ask-user" }, { "path": "./packages/core/agent-loop" }, @@ -36,6 +33,9 @@ { "path": "./packages/llm/llm-deepseek" }, { "path": "./packages/llm/llm-pi-ai" }, { "path": "./packages/bash/bash-local" }, + { "path": "./packages/sandbox/sandbox" }, + { "path": "./packages/sandbox/sandbox-local" }, + { "path": "./packages/bash/bash-sandbox" }, { "path": "./packages/bash/tool-bash" }, { "path": "./packages/fs/fs" }, { "path": "./packages/fs/fs-local" }, diff --git a/tsconfig.json b/tsconfig.json index 59d9c3598a..d581491025 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -29,12 +29,9 @@ { "path": "./packages/session-persistence/session-persistence-jsonl" }, { "path": "./packages/session-persistence/session-persistence-sqlite" }, { "path": "./packages/core/system-prompt" }, - { "path": "./packages/approval/approval" }, - { "path": "./packages/sandbox/sandbox" }, - { "path": "./packages/sandbox/sandbox-local" }, - { "path": "./packages/bash/bash-sandbox" }, { "path": "./packages/core/agent" }, { "path": "./packages/ui/user-interaction" }, + { "path": "./packages/approval/approval" }, { "path": "./packages/core/tools" }, { "path": "./packages/ui/tool-ask-user" }, { "path": "./packages/core/agent-loop" }, @@ -45,6 +42,9 @@ { "path": "./packages/llm/llm-deepseek" }, { "path": "./packages/llm/llm-pi-ai" }, { "path": "./packages/bash/bash-local" }, + { "path": "./packages/sandbox/sandbox" }, + { "path": "./packages/sandbox/sandbox-local" }, + { "path": "./packages/bash/bash-sandbox" }, { "path": "./packages/bash/tool-bash" }, { "path": "./packages/fs/fs" }, { "path": "./packages/fs/fs-local" }, From 6a13dcb364caec44ee9615f46cfa952729049dea Mon Sep 17 00:00:00 2001 From: kingwl Date: Fri, 10 Jul 2026 03:11:40 +0800 Subject: [PATCH 174/232] test(workflow): give the wedged-child waitFors loaded-runner headroom The three wedged-child scenarios busy-spin their worker for 1.5s while the host waits for the start RPC; under a loaded 2-core CI runner (this branch adds several parallel suites) the RPC lands after vi.waitFor default 1s, failing the coverage lane three runs in a row at the same three sites. An explicit 10s waitFor timeout (well inside each test own 15s budget) makes the assertions load-tolerant without weakening them. Belongs upstream with dsh-workflow-workerthread; carried here because it gates this PR. --- .../tests/workflow-workerthread.spec.ts | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index ecaeed61f6..38a5435b69 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -602,7 +602,7 @@ describe('dsh-workflow-workerthread', () => { `), parent, }) - await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }, { timeout: 10_000 }) const before = Date.now() await handle.dispose() // Bounded by the grace (plus the terminate), never by the 1.5s spin. @@ -625,7 +625,7 @@ describe('dsh-workflow-workerthread', () => { `), parent, }) - await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }, { timeout: 10_000 }) const handleDispose = handle.dispose() const result = await handle.result // The script itself settled (the wrapper's own dispose RPC found the @@ -663,7 +663,7 @@ describe('dsh-workflow-workerthread', () => { `), parent, }) - await vi.waitFor(() => { expect(order.filter(entry => entry.startsWith('start:')).length).toBe(2) }) + await vi.waitFor(() => { expect(order.filter(entry => entry.startsWith('start:')).length).toBe(2) }, { timeout: 10_000 }) const fast = provider.runs.find(run => (run.request.prompt[0] as { text?: string }).text === 'fast')! fast.settle(text('fast done')) handle.cancel('stop now') From 62627d7625deee296b564598c3463634c71b4623 Mon Sep 17 00:00:00 2001 From: pku-xht Date: Fri, 10 Jul 2026 16:42:20 +0800 Subject: [PATCH 175/232] fix(subagent-acp): contain onError sink exceptions to keep result from rejecting MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit spec.onError is a caller-supplied callback boundary, but the flattening catch invoked it unguarded: a throwing sink rejected the whole async result, breaking the seam's "result never rejects on a child-level failure" contract (and docs/defensive-patterns.md's contain-callback-exceptions rule). The sink's own throw is now swallowed — named as such — while the original child failure still settles as stopReason 'error'. Regression test drives a spawn failure through a throwing sink and asserts result resolves. Same defect as the codex backend's, fixed there on PR #240; this is the symmetric fix for the already-merged ACP backend. --- packages/subagent/subagent-acp/src/run.ts | 9 +++++++- .../subagent-acp/tests/subagent-acp.spec.ts | 22 +++++++++++++++++++ 2 files changed, 30 insertions(+), 1 deletion(-) diff --git a/packages/subagent/subagent-acp/src/run.ts b/packages/subagent/subagent-acp/src/run.ts index a9fefba27c..9d5b17cb9a 100644 --- a/packages/subagent/subagent-acp/src/run.ts +++ b/packages/subagent/subagent-acp/src/run.ts @@ -89,6 +89,7 @@ export interface AcpRunSpec { * (the seam contract forbids `result` rejecting). The driver calls this with * the original error and the chosen stop reason so the fault is preserved * rather than silently lost; the provider wires it to `ctx.logger.warn`. + * A throw from the sink itself is contained — it cannot reject `result`. * Optional — omitted in a unit test that asserts the stop reason directly. */ onError?: (error: Error, stopReason: SubagentStopReason) => void @@ -336,7 +337,13 @@ export function startAcpRun(request: SubagentStartRequest, spec: AcpRunSpec): Su // (initialize/newSession/prompt transport/RPC errors, or ENOENT), not a // local bug. Flatten to `error` and surface the original via onError so a // real fault is preserved rather than silently lost. - spec.onError?.(toError(error), 'error') + try { + spec.onError?.(toError(error), 'error') + } catch { + // Swallows only the caller-supplied sink's OWN throw: an unguarded + // sink exception would reject `result` and break the contract above. + // The child-level failure being reported still settles as `error`. + } return { output: collectOutput(), stopReason: 'error' } } })() diff --git a/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts b/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts index 92c025077a..4d8a586c63 100644 --- a/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts +++ b/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts @@ -483,6 +483,28 @@ describe('dsh-subagent-acp', () => { await run.dispose() }) + it('resolves error (never rejects) even when the onError sink itself throws', async () => { + // onError is a caller-supplied callback boundary: its own exception must be + // contained, or it would reject `result` and break the seam's "result never + // rejects" contract that the flattening above exists to uphold. + const run = startAcpRun( + { prompt: [{ type: 'text', text: 'p' }], parent: fakeParent }, + { + command: '/nonexistent/acp-agent-binary', + args: [], + cwd: process.cwd(), + permission: 'reject', + env: {}, + disposeEofGraceMs: DEFAULT_DISPOSE_EOF_GRACE_MS, + disposeGraceMs: DEFAULT_DISPOSE_GRACE_MS, + onError: () => { throw new Error('sink boom') }, + }, + ) + const result = await run.result + expect(result.stopReason).toBe('error') + await run.dispose() + }) + it('settles aborted when the child crashes (tears the pipe) AFTER a cancel', async () => { // The child hangs, we cancel, and instead of answering the child exits hard // — the pending prompt RPC rejects. With a cancel already requested, the From 64b4e2ed2db6d5a27c1266b5c8bd97c8532929b1 Mon Sep 17 00:00:00 2001 From: pku-xht Date: Fri, 10 Jul 2026 16:43:41 +0800 Subject: [PATCH 176/232] test(workflow-workerthread): flake-proof the lifecycle spec's waits under CI load MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The spec's 16 vi.waitFor sites used the 1s default timeout to wait for worker-thread startup and child registration — CPU-bound work that blows past 1s on a contended runner. The CI coverage lane (4 vitest workers plus suites that spawn real subprocesses) hit this 3 times across 4 recent PR runs, each a different subset of the cancellation/worker-death tests, each green on rerun. Every wait now goes through a shared helper with a 10s bound, and the file sets a 30s test timeout to make room for it. The one deliberately tight wait keeps its 800ms bound through the helper's override — it proves the host (not the wedged worker's later loop turn) delivered the cancel, so a generous bound would erase what it tests. No behavior under test changed. --- .../tests/workflow-workerthread.spec.ts | 52 +++++++++++++------ 1 file changed, 36 insertions(+), 16 deletions(-) diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index ecaeed61f6..175a82a7b9 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -15,6 +15,26 @@ function fakeParent(): Agent { return { id: AgentId('workflow-parent'), options: {} } as unknown as Agent } +// Worker-thread startup is CPU-bound (a fresh thread compiles the runtime on +// every start): on a contended CI runner it regularly blows past vitest's 5s +// default test timeout, observed repeatedly on the coverage lane. +vi.setConfig({ testTimeout: 30_000 }) + +/** + * `vi.waitFor` with a contention-proof timeout: the 1s default flaked + * repeatedly on the CI coverage lane, where worker-thread cold start competes + * with three sibling vitest workers for CPU. Every wait in this file is for + * something that WILL happen (a worker starting, a child registering) — a + * generous bound only removes the flake, it cannot mask a genuine hang (the + * file-wide test timeout above still fences those). + * @param assertion - retried until it stops throwing or the timeout elapses. + * @param timeout - override for a wait that must stay deliberately tight. + * @returns resolves when the assertion passes. + */ +function waitFor(assertion: () => void, timeout = 10_000): Promise { + return vi.waitFor(assertion, { timeout, interval: 50 }) +} + /** The vm-context escape hatch, spelled once: real Worker tests use it to make the WORKER misbehave. */ const ESCAPE = "globalThis.constructor.constructor('return process')()" @@ -316,7 +336,7 @@ describe('dsh-workflow-workerthread', () => { const runEnds: WorkflowResultInfo[] = [] ctx.on('workflow/end', (_info, result) => { runEnds.push(result) }) const handle = ctx.workflows.start({ ...scripted("return await agent('long job')"), parent }) - await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + await waitFor(() => { expect(provider.runs.length).toBe(1) }) handle.cancel('user stopped it') const result = await handle.result expect(result.stopReason).toBe('cancelled') @@ -357,7 +377,7 @@ describe('dsh-workflow-workerthread', () => { const controller = new AbortController() const second = ctx.workflows.start({ ...scripted("return await agent('job')"), parent, signal: controller.signal }) - await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + await waitFor(() => { expect(provider.runs.length).toBe(1) }) controller.abort() expect((await second.result).stopReason).toBe('cancelled') await second.dispose() @@ -400,7 +420,7 @@ describe('dsh-workflow-workerthread', () => { `), parent, }) - await vi.waitFor(() => { expect(narration).toContain('started') }) + await waitFor(() => { expect(narration).toContain('started') }) handle.cancel('raced the completion') const result = await handle.result expect(result.stopReason).toBe('cancelled') @@ -480,7 +500,7 @@ describe('dsh-workflow-workerthread', () => { }) const result = await handle.result expect(result.stopReason).toBe('completed') - await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + await waitFor(() => { expect(provider.runs.length).toBe(1) }) await handle.dispose() // Not a waitFor: by the time dispose() returns, the slow child disposal // must already be complete (host-side registry quiescence). @@ -526,7 +546,7 @@ describe('dsh-workflow-workerthread', () => { expect(result.stopReason).toBe('completed') // BEFORE dispose(): the settlement itself must have aborted the signal — // without it this child would stay live until dispose's terminate. - await vi.waitFor(() => { expect(aborted).toEqual(['workflow settled']) }) + await waitFor(() => { expect(aborted).toEqual(['workflow settled']) }) await handle.dispose() }) @@ -572,9 +592,9 @@ describe('dsh-workflow-workerthread', () => { `), parent: fakeParent(), }) - await vi.waitFor(() => { expect(starts).toBe(1) }) + await waitFor(() => { expect(starts).toBe(1) }) handle.cancel('stop now') - await vi.waitFor(() => { expect(cancelled).toEqual(['stop now']) }, { timeout: 800 }) + await waitFor(() => { expect(cancelled).toEqual(['stop now']) }, 800) // The wedged worker's own completion loses to the in-flight cancel. const result = await handle.result expect(result.stopReason).toBe('cancelled') @@ -602,7 +622,7 @@ describe('dsh-workflow-workerthread', () => { `), parent, }) - await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + await waitFor(() => { expect(provider.runs.length).toBe(1) }) const before = Date.now() await handle.dispose() // Bounded by the grace (plus the terminate), never by the 1.5s spin. @@ -625,7 +645,7 @@ describe('dsh-workflow-workerthread', () => { `), parent, }) - await vi.waitFor(() => { expect(provider.runs.length).toBe(1) }) + await waitFor(() => { expect(provider.runs.length).toBe(1) }) const handleDispose = handle.dispose() const result = await handle.result // The script itself settled (the wrapper's own dispose RPC found the @@ -663,7 +683,7 @@ describe('dsh-workflow-workerthread', () => { `), parent, }) - await vi.waitFor(() => { expect(order.filter(entry => entry.startsWith('start:')).length).toBe(2) }) + await waitFor(() => { expect(order.filter(entry => entry.startsWith('start:')).length).toBe(2) }) const fast = provider.runs.find(run => (run.request.prompt[0] as { text?: string }).text === 'fast')! fast.settle(text('fast done')) handle.cancel('stop now') @@ -694,7 +714,7 @@ describe('dsh-workflow-workerthread', () => { ...scripted("await parallel([() => agent('a'), () => agent('b')])\nreturn 'unreachable'"), parent, }) - await vi.waitFor(() => { expect(provider.runs.length).toBe(2) }) + await waitFor(() => { expect(provider.runs.length).toBe(2) }) handle.cancel('user stop') const result = await handle.result expect(result.stopReason).toBe('cancelled') @@ -749,7 +769,7 @@ describe('dsh-workflow-workerthread', () => { // A worker death is a stop reason like any other: workflow/end fires // with the error outcome — for a bus observer it is the only obituary. expect(runEnds).toEqual([{ stopReason: 'error', error: result.error, agentsStarted: 1 }]) - await vi.waitFor(() => { expect(cancelled.length).toBe(1) }) + await waitFor(() => { expect(cancelled.length).toBe(1) }) await handle.dispose() }, 15_000) @@ -770,7 +790,7 @@ describe('dsh-workflow-workerthread', () => { expect(result.stopReason).toBe('error') expect(result.error).toContain('worker blew up') // The reap wound the stray child down (cancel + a CLEAN dispose). - await vi.waitFor(() => { + await waitFor(() => { expect(provider.runs.length).toBe(1) expect(provider.runs[0]!.disposed).toBe(true) }) @@ -802,7 +822,7 @@ describe('dsh-workflow-workerthread', () => { `), parent, }) - await vi.waitFor(() => { expect(order.filter(entry => entry.startsWith('start:')).length).toBe(2) }) + await waitFor(() => { expect(order.filter(entry => entry.startsWith('start:')).length).toBe(2) }) const fast = provider.runs.find(run => (run.request.prompt[0] as { text?: string }).text === 'fast')! fast.settle(text('fast done')) const result = await handle.result @@ -837,7 +857,7 @@ describe('dsh-workflow-workerthread', () => { const result = await handle.result expect(result.stopReason).toBe('error') expect(result.error).toContain('exit code 5') - await vi.waitFor(() => { expect(provider.runs[0]!.disposed).toBe(true) }) + await waitFor(() => { expect(provider.runs[0]!.disposed).toBe(true) }) await handle.dispose() }, 15_000) @@ -855,7 +875,7 @@ describe('dsh-workflow-workerthread', () => { }) const logs: string[] = [] ctx.on('workflow/log', (_info, message) => { logs.push(message) }) - await vi.waitFor(() => { expect(logs).toContain('armed') }) + await waitFor(() => { expect(logs).toContain('armed') }) handle.cancel('stop it') // The grace is deliberately huge: only the worker's own death (exit 3, // unreachable by the cancel — the script ignores hooks) settles this. From 1d848cf5f7b511ca9ce7b233d11726298e1e6e5d Mon Sep 17 00:00:00 2001 From: Ziya <199893125+ZiyaZhang@users.noreply.github.com> Date: Fri, 10 Jul 2026 02:09:17 -0700 Subject: [PATCH 177/232] rfc: propose interactive side sessions and merge-back --- docs/rfc/INDEX.md | 1 + .../2026-07-08-interactive-side-sessions.md | 48 +++++++++++++++++++ 2 files changed, 49 insertions(+) create mode 100644 docs/rfc/proposed/feature/2026-07-08-interactive-side-sessions.md diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index ba2b9d88dc..85fff2419d 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -12,6 +12,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [Multiplex concurrent ACP sessions over one connection](proposed/feature/2026-06-14-acp-multi-session.md) | 2026-06-14 | | [Pre-tool input rewrite — a consistent design](proposed/feature/2026-06-30-pre-tool-input-rewrite.md) | 2026-06-30 | | [Claude Code and Codex subagent backends (out-of-process delegation to external coding agents)](proposed/feature/2026-07-07-claude-code-and-codex-subagent-backends.md) | 2026-07-07 | +| [Interactive side sessions and merge-back](proposed/feature/2026-07-08-interactive-side-sessions.md) | 2026-07-08 | ### Simplification diff --git a/docs/rfc/proposed/feature/2026-07-08-interactive-side-sessions.md b/docs/rfc/proposed/feature/2026-07-08-interactive-side-sessions.md new file mode 100644 index 0000000000..986c15ae66 --- /dev/null +++ b/docs/rfc/proposed/feature/2026-07-08-interactive-side-sessions.md @@ -0,0 +1,48 @@ +# RFC: Interactive side sessions and merge-back + +Status: proposed + +## Problem + +A user deep in a live session often wants to fork the conversation — ask "why did we structure it this way", explore an alternative, get an explanation — without polluting the main context and without abandoning the surface they are in. The harness has every primitive this needs and no product face for it: [the session-store fork API](../../implemented/feature/2026-06-30-session-store-fork-api.md) produces a `Session` with no attached agent and no way for a client to reach it, and [the fork subagent](../../implemented/feature/2026-06-21-subagent-capability-seam.md) seeds a child with the parent's prefix but runs it as a model-driven task whose whole transcript collapses into one tool result — neither yields a forked conversation the USER can talk to. + +The return path is missing entirely: nothing carries a conclusion from one branch back into another. Whatever the user learns in an exploration branch is copy-pasted by hand or lost, with no provenance and no replayable record. + +Terminal-first competitors ship half of each: single-shot side questions with inherited context, and user-switched branch copies that force a client restart. None ship the return verb. A harness that owns its session store and context assembly can do both cheaply — and can do so without breaking the provider prefix cache, which third-party wrappers structurally cannot. + +## Proposal + +A **side session** is an ordinary live session forked from a source session at its last completed turn, attached to its own agent, framed as a read-only advisor, with one new verb — **merge-back** — that hands a condensed note to the parent. + +- **Fork + attach composes existing primitives.** The child is created via `ctx.agents.create({ seed, meta })` with the parent's balanced completed-turn prefix (the same slice the fork subagent takes) and `parentSession`/`seedLength` lineage stamped in `meta`. No new core service and no session-store change, for the same reasons [the fork API RFC](../../implemented/feature/2026-06-30-session-store-fork-api.md) rejected a standalone fork service. +- **Advisor framing rides the log, not the system prompt.** The rules ("you are a read-only side advisor; explain, do not mutate; refuse task continuation") are `inject()`ed as a `context/message` with source `{ kind: 'plugin', plugin: 'sidechat' }` immediately after creation. The child's system prompt stays byte-identical to the parent's, so the provider's prefix cache covers the inherited history. +- **Merge-back is one condense turn plus one injection.** `/merge` prompts the child for a bounded handback note (a hard length cap), then `inject()`s the note into the PARENT as a `context/message` with the same plugin source. The parent's next request sees it at its chronological position; replay and [reconstructability](../../implemented/architecture/2026-07-05-reconstructable-requests.md) hold by construction; no new event type enters [the session vocabulary](../../../core-data-structures/session.md). +- **The v1 surface is the ACP bridge, with no new protocol capability.** The bridge intercepts `/side [question]` on a prompt: it stages the fork (bridge-local state, nothing appended to the source log) and the next `session/new` in the same workspace claims it, so the child appears to the editor as an ordinary second session under [multi-session](./2026-06-14-acp-multi-session.md). Because `context/message` produces no client update, the bridge mirrors the handback as an `agent_message_chunk` in the parent session so the merge is visible. + +v1 scope excludes: the stdio-agent surface (single-session readline today), rewind productization (mechanically the same fork-to-an-earlier-boundary, an entirely different product question), session tree views, a model-facing side-session tool, `forkName`/`mergedInto` metadata, and cross-connection persistence of a staged fork. + +## Prototype + +A bridge-level spike (branch `spike/side-sessions-b`) runs the full loop against the live adapter: `/side` staging with zero source-log writes, a claim that seeds the child with the full inherited prefix, a multi-turn advisor exchange that demonstrably uses parent history, and a merge-back the parent's next turn quotes correctly. + +## Alternatives considered + +- **Carry side conversations through the subagent seam.** Rejected: a subagent child is a model-driven run — the parent's model spawns it, drives it, and consumes its result as a tool result. A side session is user-driven, needs its own client-visible session and lifecycle, and must outlive any single parent turn. +- **Persona via `system-prompt/assemble` section filtering.** Rejected as the default path: any system-prompt byte change invalidates the provider prefix cache from token 0, forfeiting the cheap fork that makes side sessions attractive on long histories. The filter seam remains available for deployments that prefer hard prompt separation over cache reuse. +- **A dedicated `sidechat/*` event family for the handback.** Deferred: `context/message` with a mandatory plugin source already satisfies durability, provenance, and replay. A first-class event earns its catalog, persistence, and snapshot costs only if a UI needs to render handbacks as dedicated cards. +- **An ACP `session/fork` method now.** Deferred: the fork API RFC gates any ACP surface on transcript/snapshot coverage before the capability is advertised, and today's clients offer no fork affordance to call it from. Stage-and-claim ships the experience with zero protocol additions and can be replaced by the method transparently later. + +## Acceptance criteria + +- `/side` on a live ACP session appends nothing to that session's log; staging is bridge-local and consumed by exactly one claim. +- The claiming `session/new` yields a child seeded with the source's completed-turn prefix, with `parentSession` and `seedLength` in its header and a system prompt byte-identical to the parent's. +- `/merge` appends exactly one length-capped `context/message` to the parent with source `plugin: sidechat`; the parent's next request sees it, and `session/load` replays both sessions faithfully. +- Parent and child stream concurrently without interleaving their `session/update` feeds (existing multi-session isolation). +- Coverage: bridge unit tests for the stage/claim/merge state machine over the in-memory transport, plus a keyless snapshot scenario exercising fork-claim and merge-back end to end. + +## Risks + +- **Read-only is advisory in v1.** The rules are injected context, not enforcement; a determined prompt can still drive mutating tools. The hard gate is a `tools/pre-execute` deny via [the interception seams](../../implemented/feature/2026-06-30-interception-seams.md), and the RFC's advisor framing is written so that gate can be added without changing the product surface. +- **The staged fork has one slot.** The next same-workspace `session/new` claims it even if the user meant an unrelated thread; the claim banner names the source session and the slot dies with the connection, but a mis-claim costs the user a discarded thread. +- **A compacted source forks its compacted view.** The child inherits the summary, not the original turns; the claim banner should disclose this once [compaction](../../implemented/feature/2026-06-18-compaction-capability-seam.md) ships in this path. +- **Handback notes spend parent tokens.** The length cap and one-note-per-`/merge` bound the cost, but a user who merges repeatedly accumulates notes; a future consolidation pass belongs to the compaction work, not this surface. From 3abc68004888776c909c8a06866a46d37a027855 Mon Sep 17 00:00:00 2001 From: Ziya <199893125+ZiyaZhang@users.noreply.github.com> Date: Fri, 10 Jul 2026 02:38:26 -0700 Subject: [PATCH 178/232] rfc: derive handback visibility from the log, not a live-only mirror --- .../proposed/feature/2026-07-08-interactive-side-sessions.md | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/docs/rfc/proposed/feature/2026-07-08-interactive-side-sessions.md b/docs/rfc/proposed/feature/2026-07-08-interactive-side-sessions.md index 986c15ae66..2ed5008356 100644 --- a/docs/rfc/proposed/feature/2026-07-08-interactive-side-sessions.md +++ b/docs/rfc/proposed/feature/2026-07-08-interactive-side-sessions.md @@ -17,7 +17,7 @@ A **side session** is an ordinary live session forked from a source session at i - **Fork + attach composes existing primitives.** The child is created via `ctx.agents.create({ seed, meta })` with the parent's balanced completed-turn prefix (the same slice the fork subagent takes) and `parentSession`/`seedLength` lineage stamped in `meta`. No new core service and no session-store change, for the same reasons [the fork API RFC](../../implemented/feature/2026-06-30-session-store-fork-api.md) rejected a standalone fork service. - **Advisor framing rides the log, not the system prompt.** The rules ("you are a read-only side advisor; explain, do not mutate; refuse task continuation") are `inject()`ed as a `context/message` with source `{ kind: 'plugin', plugin: 'sidechat' }` immediately after creation. The child's system prompt stays byte-identical to the parent's, so the provider's prefix cache covers the inherited history. - **Merge-back is one condense turn plus one injection.** `/merge` prompts the child for a bounded handback note (a hard length cap), then `inject()`s the note into the PARENT as a `context/message` with the same plugin source. The parent's next request sees it at its chronological position; replay and [reconstructability](../../implemented/architecture/2026-07-05-reconstructable-requests.md) hold by construction; no new event type enters [the session vocabulary](../../../core-data-structures/session.md). -- **The v1 surface is the ACP bridge, with no new protocol capability.** The bridge intercepts `/side [question]` on a prompt: it stages the fork (bridge-local state, nothing appended to the source log) and the next `session/new` in the same workspace claims it, so the child appears to the editor as an ordinary second session under [multi-session](./2026-06-14-acp-multi-session.md). Because `context/message` produces no client update, the bridge mirrors the handback as an `agent_message_chunk` in the parent session so the merge is visible. +- **The v1 surface is the ACP bridge, with no new protocol capability.** The bridge intercepts `/side [question]` on a prompt: it stages the fork (bridge-local state, nothing appended to the source log) and the next `session/new` in the same workspace claims it, so the child appears to the editor as an ordinary second session under [multi-session](./2026-06-14-acp-multi-session.md). A plugin-sourced `context/message` renders as a visible message through the bridge's shared event translator, so the live stream and `session/load` replay derive the identical visible record from the same durable event — the handback's visibility is a projection of the log, never a live-only mirror. v1 scope excludes: the stdio-agent surface (single-session readline today), rewind productization (mechanically the same fork-to-an-earlier-boundary, an entirely different product question), session tree views, a model-facing side-session tool, `forkName`/`mergedInto` metadata, and cross-connection persistence of a staged fork. @@ -31,12 +31,13 @@ A bridge-level spike (branch `spike/side-sessions-b`) runs the full loop against - **Persona via `system-prompt/assemble` section filtering.** Rejected as the default path: any system-prompt byte change invalidates the provider prefix cache from token 0, forfeiting the cheap fork that makes side sessions attractive on long histories. The filter seam remains available for deployments that prefer hard prompt separation over cache reuse. - **A dedicated `sidechat/*` event family for the handback.** Deferred: `context/message` with a mandatory plugin source already satisfies durability, provenance, and replay. A first-class event earns its catalog, persistence, and snapshot costs only if a UI needs to render handbacks as dedicated cards. - **An ACP `session/fork` method now.** Deferred: the fork API RFC gates any ACP surface on transcript/snapshot coverage before the capability is advertised, and today's clients offer no fork affordance to call it from. Stage-and-claim ships the experience with zero protocol additions and can be replaced by the method transparently later. +- **A live-only transcript mirror for the handback.** Rejected in review: load replay deliberately ignores `context/message`, so a bridge-emitted `agent_message_chunk` would make the visible note vanish on `session/load` while the model still sees it. Rendering the durable `context/message` through the shared translator keeps live streaming and replay byte-identical. ## Acceptance criteria - `/side` on a live ACP session appends nothing to that session's log; staging is bridge-local and consumed by exactly one claim. - The claiming `session/new` yields a child seeded with the source's completed-turn prefix, with `parentSession` and `seedLength` in its header and a system prompt byte-identical to the parent's. -- `/merge` appends exactly one length-capped `context/message` to the parent with source `plugin: sidechat`; the parent's next request sees it, and `session/load` replays both sessions faithfully. +- `/merge` appends exactly one length-capped `context/message` to the parent with source `plugin: sidechat`; the parent's next request sees it, and `session/load` reproduces the visible handback note identically to the live stream — both derive from the same durable event. - Parent and child stream concurrently without interleaving their `session/update` feeds (existing multi-session isolation). - Coverage: bridge unit tests for the stage/claim/merge state machine over the in-memory transport, plus a keyless snapshot scenario exercising fork-claim and merge-back end to end. From 0b203534248379b166ebda9783a236960669962f Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Fri, 10 Jul 2026 17:47:11 +0800 Subject: [PATCH 179/232] test(acp): clarify skill snapshot fixture --- examples/acp-agent/tests/acp.snapshot.ts | 2 +- .../tests/snapshots/skill-load/input.json | 2 +- .../snapshots/skill-load/replay.override.json | 28 ------------------- .../tests/snapshots/skill-load/session.jsonl | 14 +++++----- .../snapshots/skill-load/stdout.golden.jsonl | 4 +-- .../.dsh/skills/dsh-skill-creator/SKILL.md | 12 -------- .../.dsh/skills/snapshot-skill/SKILL.md | 7 +++++ 7 files changed, 18 insertions(+), 51 deletions(-) delete mode 100644 examples/acp-agent/tests/snapshots/skill-load/replay.override.json delete mode 100644 examples/acp-agent/tests/snapshots/skill-load/workspace/.dsh/skills/dsh-skill-creator/SKILL.md create mode 100644 examples/acp-agent/tests/snapshots/skill-load/workspace/.dsh/skills/snapshot-skill/SKILL.md diff --git a/examples/acp-agent/tests/acp.snapshot.ts b/examples/acp-agent/tests/acp.snapshot.ts index a565d7cd55..0df15f3e5e 100644 --- a/examples/acp-agent/tests/acp.snapshot.ts +++ b/examples/acp-agent/tests/acp.snapshot.ts @@ -36,7 +36,7 @@ const SCENARIOS: Scenario[] = [ { name: 'tool-call-turn', hasModelTurn: true, recorded: true }, { name: 'fs-terminal-card', hasModelTurn: true, recorded: true }, { name: 'todo-plan', hasModelTurn: true, recorded: true }, - { name: 'skill-load', hasModelTurn: true, recorded: false, overridden: true, pinsHeader: true, headerClass: 'skill' }, + { name: 'skill-load', hasModelTurn: true, recorded: false, pinsHeader: true, headerClass: 'skill' }, { name: 'workspace-edit', hasModelTurn: true, recorded: true }, { name: 'fs-read', hasModelTurn: true, recorded: true }, { name: 'fs-write', hasModelTurn: true, recorded: true }, diff --git a/examples/acp-agent/tests/snapshots/skill-load/input.json b/examples/acp-agent/tests/snapshots/skill-load/input.json index f1bc38d5fb..a5ee78bff6 100644 --- a/examples/acp-agent/tests/snapshots/skill-load/input.json +++ b/examples/acp-agent/tests/snapshots/skill-load/input.json @@ -2,6 +2,6 @@ "steps": [ { "op": "initialize" }, { "op": "newSession" }, - { "op": "prompt", "text": "Load the dsh-skill-creator skill with the skill tool, then reply DONE." } + { "op": "prompt", "text": "Load the snapshot-skill skill with the skill tool, then reply DONE." } ] } diff --git a/examples/acp-agent/tests/snapshots/skill-load/replay.override.json b/examples/acp-agent/tests/snapshots/skill-load/replay.override.json deleted file mode 100644 index b79d212caa..0000000000 --- a/examples/acp-agent/tests/snapshots/skill-load/replay.override.json +++ /dev/null @@ -1,28 +0,0 @@ -[ - { - "kind": "chunks", - "chunks": [ - { "type": "block-start", "index": 0, "blockType": "reasoning" }, - { "type": "reasoning-delta", "index": 0, "text": "Load the requested skill." }, - { "type": "block-start", "index": 1, "blockType": "tool-call" }, - { "type": "tool-call-delta", "index": 1, "id": "call_skill_load", "name": "skill", "argumentsDelta": "{\"name\":\"dsh-skill-creator\"}" }, - { "type": "block-end", "index": 0, "block": { "type": "reasoning", "text": "Load the requested skill." } }, - { "type": "block-end", "index": 1, "block": { "type": "tool-call", "id": "call_skill_load", "name": "skill", "arguments": "{\"name\":\"dsh-skill-creator\"}" } }, - { "type": "usage", "usage": { "inputTokens": 100, "outputTokens": 20, "cacheReadTokens": 0, "reasoningTokens": 5 } }, - { "type": "finish", "reason": { "kind": "tool-calls" } } - ] - }, - { - "kind": "chunks", - "chunks": [ - { "type": "block-start", "index": 0, "blockType": "reasoning" }, - { "type": "reasoning-delta", "index": 0, "text": "The skill is loaded." }, - { "type": "block-start", "index": 1, "blockType": "text" }, - { "type": "text-delta", "index": 1, "text": "DONE" }, - { "type": "block-end", "index": 0, "block": { "type": "reasoning", "text": "The skill is loaded." } }, - { "type": "block-end", "index": 1, "block": { "type": "text", "text": "DONE" } }, - { "type": "usage", "usage": { "inputTokens": 180, "outputTokens": 10, "cacheReadTokens": 0, "reasoningTokens": 4 } }, - { "type": "finish", "reason": { "kind": "stop" } } - ] - } -] diff --git a/examples/acp-agent/tests/snapshots/skill-load/session.jsonl b/examples/acp-agent/tests/snapshots/skill-load/session.jsonl index 04b972b1d1..d95fb0b7f0 100644 --- a/examples/acp-agent/tests/snapshots/skill-load/session.jsonl +++ b/examples/acp-agent/tests/snapshots/skill-load/session.jsonl @@ -1,19 +1,19 @@ {"type":"session","version":0,"id":"9eb4181f-2d05-49d3-98fc-3711fe2f5664","createdAt":1783654655599,"cwd":"/var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-DhYwNW"} {"type":"turn/start","seq":0,"time":1783654655602,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783654655603,"data":{"content":[{"type":"text","text":"Load the dsh-skill-creator skill with the skill tool, then reply DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} +{"type":"user/message","seq":1,"time":1783654655603,"data":{"content":[{"type":"text","text":"Load the snapshot-skill skill with the skill tool, then reply DONE."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783654655608,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783654655608,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-DhYwNW.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"skill","description":"Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}],"messagePrefix":[{"role":"user","content":[{"type":"text","text":"\nA skill is a reusable set of task-specific instructions. The following skills are available in this session:\n\n\n- `dsh-skill-creator`: Create or update DeepSeek Harness SKILL.md instructions.\n\n\nIf the user names a skill, or the task clearly matches a skill's description, call the `skill` tool with the exact skill name before taking task actions. Load all applicable skills, then follow their full instructions. This catalog contains summaries only; do not infer or follow a skill's instructions until it has been loaded.\n"}]}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783654655608,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-DhYwNW.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"skill","description":"Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}],"messagePrefix":[{"role":"user","content":[{"type":"text","text":"\nA skill is a reusable set of task-specific instructions. The following skills are available in this session:\n\n\n- `snapshot-skill`: Exercise project skill discovery and loading in snapshot tests.\n\n\nIf the user names a skill, or the task clearly matches a skill's description, call the `skill` tool with the exact skill name before taking task actions. Load all applicable skills, then follow their full instructions. This catalog contains summaries only; do not infer or follow a skill's instructions until it has been loaded.\n"}]}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"Load the requested skill."}}} {"type":"assistant/chunk","seq":6,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"tool-call"}}} -{"type":"assistant/chunk","seq":7,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"tool-call-delta","index":1,"id":"call_skill_load","name":"skill","argumentsDelta":"{\"name\":\"dsh-skill-creator\"}"}}} +{"type":"assistant/chunk","seq":7,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"tool-call-delta","index":1,"id":"call_skill_load","name":"skill","argumentsDelta":"{\"name\":\"snapshot-skill\"}"}}} {"type":"assistant/chunk","seq":8,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"Load the requested skill."}}}} -{"type":"assistant/chunk","seq":9,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"tool-call","id":"call_skill_load","name":"skill","arguments":"{\"name\":\"dsh-skill-creator\"}"}}}} +{"type":"assistant/chunk","seq":9,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"tool-call","id":"call_skill_load","name":"skill","arguments":"{\"name\":\"snapshot-skill\"}"}}}} {"type":"assistant/chunk","seq":10,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":100,"outputTokens":20,"cacheReadTokens":0,"reasoningTokens":5}}}} {"type":"assistant/chunk","seq":11,"time":1783654655609,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}} -{"type":"assistant/message","seq":12,"time":1783654655609,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"Load the requested skill."},{"type":"tool-call","id":"call_skill_load","name":"skill","arguments":"{\"name\":\"dsh-skill-creator\"}"}],"usage":{"inputTokens":100,"outputTokens":20,"cacheReadTokens":0,"reasoningTokens":5}},"sourceEventSeqs":[4,5,6,7,8,9,10,11],"surfaceOp":"append"} -{"type":"tool/call","seq":13,"time":1783654655609,"data":{"turn":1,"step":1,"callId":"call_skill_load","name":"skill","arguments":"{\"name\":\"dsh-skill-creator\"}"}} -{"type":"tool/result","seq":14,"time":1783654655610,"data":{"turn":1,"step":1,"callId":"call_skill_load","content":[{"type":"text","text":"\n\nBase directory for this skill: /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-DhYwNW/.dsh/skills/dsh-skill-creator\nResolve relative paths mentioned by this skill against the base directory before using them. Load referenced resources only as needed.\n\n\n\nUse this skill to write focused DeepSeek Harness skills.\n\nA skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter.\nFrontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it.\nUse optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills.\nKeep the body procedural, evidence-oriented, and scoped to the workflow the skill owns.\n\n"}],"isError":false},"sourceEventSeqs":[13],"surfaceOp":"append"} +{"type":"assistant/message","seq":12,"time":1783654655609,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"Load the requested skill."},{"type":"tool-call","id":"call_skill_load","name":"skill","arguments":"{\"name\":\"snapshot-skill\"}"}],"usage":{"inputTokens":100,"outputTokens":20,"cacheReadTokens":0,"reasoningTokens":5}},"sourceEventSeqs":[4,5,6,7,8,9,10,11],"surfaceOp":"append"} +{"type":"tool/call","seq":13,"time":1783654655609,"data":{"turn":1,"step":1,"callId":"call_skill_load","name":"skill","arguments":"{\"name\":\"snapshot-skill\"}"}} +{"type":"tool/result","seq":14,"time":1783654655610,"data":{"turn":1,"step":1,"callId":"call_skill_load","content":[{"type":"text","text":"\n\nBase directory for this skill: /var/folders/_g/59jgff8x2gqd39f5vy1wnbfc0000gn/T/acp-snap-cwd-DhYwNW/.dsh/skills/snapshot-skill\nResolve relative paths mentioned by this skill against the base directory before using them. Load referenced resources only as needed.\n\n\n\nFollow these snapshot-only instructions.\nResolve referenced resources relative to this skill directory.\n\n"}],"isError":false},"sourceEventSeqs":[13],"surfaceOp":"append"} {"type":"step/end","seq":15,"time":1783654655610,"data":{"turn":1,"step":1}} {"type":"step/start","seq":16,"time":1783654655610,"data":{"turn":1,"step":2}} {"type":"assistant/chunk","seq":17,"time":1783654655611,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} diff --git a/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl index 6c958b8f02..00e707088e 100644 --- a/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/skill-load/stdout.golden.jsonl @@ -1,8 +1,8 @@ {"jsonrpc":"2.0","id":1,"result":{"protocolVersion":1,"agentInfo":{"name":"deepseek-harness-acp","version":"0.0.1"},"agentCapabilities":{"loadSession":true,"promptCapabilities":{"image":false,"audio":false,"embeddedContext":false}},"authMethods":[]}} {"jsonrpc":"2.0","id":2,"result":{"sessionId":"{{sessionId}}"}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"Load the requested skill."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_skill_load","title":"Load skill dsh-skill-creator","kind":"read","status":"in_progress","rawInput":"dsh-skill-creator"}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_skill_load","status":"completed","content":[{"type":"content","content":{"type":"text","text":"\n\nBase directory for this skill: {{cwd}}/.dsh/skills/dsh-skill-creator\nResolve relative paths mentioned by this skill against the base directory before using them. Load referenced resources only as needed.\n\n\n\nUse this skill to write focused DeepSeek Harness skills.\n\nA skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter.\nFrontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it.\nUse optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills.\nKeep the body procedural, evidence-oriented, and scoped to the workflow the skill owns.\n\n"}}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_skill_load","title":"Load skill snapshot-skill","kind":"read","status":"in_progress","rawInput":"snapshot-skill"}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_skill_load","status":"completed","content":[{"type":"content","content":{"type":"text","text":"\n\nBase directory for this skill: {{cwd}}/.dsh/skills/snapshot-skill\nResolve relative paths mentioned by this skill against the base directory before using them. Load referenced resources only as needed.\n\n\n\nFollow these snapshot-only instructions.\nResolve referenced resources relative to this skill directory.\n\n"}}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The skill is loaded."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"DONE"}}}} {"jsonrpc":"2.0","id":3,"result":{"stopReason":"end_turn"}} diff --git a/examples/acp-agent/tests/snapshots/skill-load/workspace/.dsh/skills/dsh-skill-creator/SKILL.md b/examples/acp-agent/tests/snapshots/skill-load/workspace/.dsh/skills/dsh-skill-creator/SKILL.md deleted file mode 100644 index 684bc0885e..0000000000 --- a/examples/acp-agent/tests/snapshots/skill-load/workspace/.dsh/skills/dsh-skill-creator/SKILL.md +++ /dev/null @@ -1,12 +0,0 @@ ---- -name: dsh-skill-creator -description: Create or update DeepSeek Harness SKILL.md instructions. -whenToUse: Use when writing reusable agent instructions for DeepSeek Harness or adding system/project/user skills. ---- - -Use this skill to write focused DeepSeek Harness skills. - -A skill is a directory `/SKILL.md` or a flat `.md` file with YAML frontmatter. -Frontmatter must include kebab-case `name` and a concise `description` that tells the model when to load it. -Use optional `whenToUse` for extra routing signal and `disableModelInvocation: true` for user-only skills. -Keep the body procedural, evidence-oriented, and scoped to the workflow the skill owns. diff --git a/examples/acp-agent/tests/snapshots/skill-load/workspace/.dsh/skills/snapshot-skill/SKILL.md b/examples/acp-agent/tests/snapshots/skill-load/workspace/.dsh/skills/snapshot-skill/SKILL.md new file mode 100644 index 0000000000..b0816d6bee --- /dev/null +++ b/examples/acp-agent/tests/snapshots/skill-load/workspace/.dsh/skills/snapshot-skill/SKILL.md @@ -0,0 +1,7 @@ +--- +name: snapshot-skill +description: Exercise project skill discovery and loading in snapshot tests. +--- + +Follow these snapshot-only instructions. +Resolve referenced resources relative to this skill directory. From c2c238d36d36a0f03c5f83ecf7db87f9e67d344f Mon Sep 17 00:00:00 2001 From: Yichen Jiang Date: Fri, 10 Jul 2026 17:47:28 +0800 Subject: [PATCH 180/232] fix(skill): forward cancellation to local reads --- packages/skill/skill-local/README.md | 2 +- packages/skill/skill-local/src/index.ts | 33 +++++++++----- .../skill-local/tests/skill-local.spec.ts | 45 ++++++++++++++++++- 3 files changed, 66 insertions(+), 14 deletions(-) diff --git a/packages/skill/skill-local/README.md b/packages/skill/skill-local/README.md index 8f1b4f9e98..c885416ff5 100644 --- a/packages/skill/skill-local/README.md +++ b/packages/skill/skill-local/README.md @@ -30,7 +30,7 @@ Default roots are resolved in this provider's rank order: The project root is the nearest ancestor containing `.git`; without one, the current cwd is used. The user DSH root skips its `.system` child so system-owned directories are not accidentally treated as normal user skills. DeepSeek Harness no longer ships built-in system skills from this provider; additional built-ins can be supplied later by another provider. -When `ctx.fs` is available, discovery lists roots through `ctx.fs.listDir`, reads skill files through `ctx.fs.readText`, and probes `.git` through the filesystem service. Without a filesystem service, the provider falls back to Node filesystem I/O so minimal local contexts can still load skills. Missing, unreadable, or malformed skill files warn and skip instead of failing the whole request. +When `ctx.fs` is available, discovery lists roots through `ctx.fs.listDir`, reads skill files through `ctx.fs.readText`, and probes `.git` through the filesystem service. Full skill loads forward the lookup abort signal to filesystem metadata and content reads. Without a filesystem service, the provider falls back to abortable Node filesystem I/O so minimal local contexts can still load skills. Missing, unreadable, or malformed skill files warn and skip instead of failing the whole request. ## Skill Format diff --git a/packages/skill/skill-local/src/index.ts b/packages/skill/skill-local/src/index.ts index e0953110b6..19a15f1de8 100644 --- a/packages/skill/skill-local/src/index.ts +++ b/packages/skill/skill-local/src/index.ts @@ -116,11 +116,12 @@ export class LocalSkillProvider implements SkillProvider { /** * Load a complete local skill body from the candidate's file locator. * @param candidate - the winning candidate returned by this provider. + * @param options - lookup options whose signal cancels filesystem reads. * @returns the full local skill, or `undefined` if the file disappeared. */ - async get(candidate: SkillCandidate): Promise { + async get(candidate: SkillCandidate, options: SkillLookupOptions): Promise { const locator = candidate.locator as LocalLocator - const parsed = await parseSkillFile(locator.path, this.ctx) + const parsed = await parseSkillFile(locator.path, this.ctx, options.signal) if (parsed === undefined) return undefined return { name: parsed.name, @@ -223,8 +224,9 @@ async function listSkillRootEntriesFromNode(root: SkillRoot, ctx: Context): Prom return result } -async function parseSkillFile(path: string, ctx: Context): Promise { - const raw = await readSkillText(ctx, path) +async function parseSkillFile(path: string, ctx: Context, signal?: AbortSignal): Promise { + const raw = await readSkillText(ctx, path, signal) + signal?.throwIfAborted() if (raw === undefined) { return undefined } @@ -263,30 +265,39 @@ function optionalFileSystem(ctx: Context): FileSystem | undefined { return ctx.get('fs') } -async function readSkillText(ctx: Context, path: string): Promise { +async function readSkillText(ctx: Context, path: string, signal?: AbortSignal): Promise { + signal?.throwIfAborted() const fs = optionalFileSystem(ctx) if (fs !== undefined) { - return await readSkillTextFromFileSystem(ctx, fs, path) + return await readSkillTextFromFileSystem(ctx, fs, path, signal) } try { - return await readFile(path, 'utf8') + return await readFile(path, { encoding: 'utf8', signal }) } catch { + signal?.throwIfAborted() return undefined } } -async function readSkillTextFromFileSystem(ctx: Context, fs: FileSystem, path: string): Promise { +async function readSkillTextFromFileSystem(ctx: Context, fs: FileSystem, path: string, signal?: AbortSignal): Promise { // A missing or temporarily inaccessible skill file is not fatal to discovery. + signal?.throwIfAborted() const target = await fs.resolve(path).catch(() => undefined) + signal?.throwIfAborted() if (target === undefined) return undefined - const info = await fs.stat(target).catch((error: unknown) => { + let info + try { + info = await fs.stat(target, signal) + } catch (error) { + signal?.throwIfAborted() ctx.logger.warn(`skill file ${path} ignored: failed to stat through filesystem service: ${errorMessage(error)}`) return undefined - }) + } if (info === undefined || info.type !== 'file') return undefined try { - return await fs.readText(target) + return await fs.readText(target, signal) } catch (error) { + signal?.throwIfAborted() ctx.logger.warn(`skill file ${path} ignored: ${fsReadErrorMessage(target, error)}`) return undefined } diff --git a/packages/skill/skill-local/tests/skill-local.spec.ts b/packages/skill/skill-local/tests/skill-local.spec.ts index 5c981cb0e0..94a48ce53f 100644 --- a/packages/skill/skill-local/tests/skill-local.spec.ts +++ b/packages/skill/skill-local/tests/skill-local.spec.ts @@ -27,13 +27,17 @@ class TestFileSystem extends FileSystem { failResolvePaths = new Set() failStatPaths = new Set() statOverrides = new Map() + statSignals: Array = [] + readTextSignals: Array = [] + readTextOverride?: (target: FsTarget, signal?: AbortSignal) => Promise override async resolve(path: string): Promise { if (this.failResolvePaths.has(path)) throw new Error('resolve failed') return { targetKey: path as never, displayPath: path } } - override async stat(target: FsTarget): Promise { + override async stat(target: FsTarget, signal?: AbortSignal): Promise { + this.statSignals.push(signal) if (this.failStatPaths.has(target.displayPath)) throw new Error('stat failed') if (this.statOverrides.has(target.displayPath)) return this.statOverrides.get(target.displayPath) try { @@ -49,7 +53,9 @@ class TestFileSystem extends FileSystem { } } - override async readText(target: FsTarget): Promise { + override async readText(target: FsTarget, signal?: AbortSignal): Promise { + this.readTextSignals.push(signal) + if (this.readTextOverride !== undefined) return await this.readTextOverride(target, signal) const text = await readFile(target.displayPath, 'utf8') if (text.includes('\uFFFD')) throw new Error('not text') return text @@ -317,6 +323,41 @@ describe('LocalSkillProvider', () => { expect(await ctx.skills.get('binary-skill')).toBeUndefined() }) + it('forwards cancellation to filesystem reads while loading a skill', async () => { + const home = await tempDir('skill-read-abort') + await writeSkill(join(home, '.dsh/skills'), 'abortable-skill', 'Abortable skill') + + const ctx = new Context() + await ctx.plugin(TestFileSystem) + const fs = ctx.fs as TestFileSystem + await ctx.plugin(SkillService) + await ctx.plugin(SkillLocal, { dshHome: join(home, '.dsh'), agentsHome: join(home, '.agents') }) + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['abortable-skill']) + + fs.statSignals = [] + fs.readTextSignals = [] + const started = Promise.withResolvers() + fs.readTextOverride = async (_target, signal) => { + if (signal === undefined) throw new Error('expected the skill lookup signal') + started.resolve(undefined) + return await new Promise((_resolve, reject) => { + signal.addEventListener('abort', () => { + const abortReason = signal.reason as unknown + reject(abortReason instanceof Error ? abortReason : new Error(String(abortReason))) + }, { once: true }) + }) + } + const controller = new AbortController() + const reason = new Error('turn cancelled') + const loading = ctx.skills.get('abortable-skill', { signal: controller.signal }) + await started.promise + controller.abort(reason) + + await expect(loading).rejects.toBe(reason) + expect(fs.statSignals).toEqual([controller.signal]) + expect(fs.readTextSignals).toEqual([controller.signal]) + }) + it('uses default home root resolution without exposing builtin skills', async () => { const previousDshHome = process.env.DSH_HOME const previousAgentsHome = process.env.DSH_AGENTS_HOME From dd2f37b80fa1e69403268f02bd64b4576daa01f8 Mon Sep 17 00:00:00 2001 From: pku-xht Date: Fri, 10 Jul 2026 20:48:14 +0800 Subject: [PATCH 181/232] fix(workflow-workerthread): tighten post-result promptness waits back down MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Review follow-up: the blanket 10s default correctly targets worker-thread cold-start races (starting, first-script-line, async child-registration messages — genuinely CPU-bound under CI contention), but four waits assert something different — that the HOST reacted PROMPTLY to an event that already happened (a settled result, an observed worker death). Those had no cold-start left to wait on, so the generous default just widened the window a real regression could hide in. Verified by injecting a 6s delay into the settle-reap's abort call: the un-overridden helper's test still passed in ~6s. The same mutation now fails in ~1s with the explicit 1000ms override restored on all four sites (the abort-on-settle test's own assertion, the two worker-death cancel/dispose reap checks, and the dispose-ack-race check). The other 12 waits keep the 10s default — they run BEFORE a result is awaited, waiting on the worker to actually start rather than on a host reaction. Doc comment corrected to describe the split instead of claiming every wait is a cold-start race. --- .../tests/workflow-workerthread.spec.ts | 38 +++++++++++++------ 1 file changed, 27 insertions(+), 11 deletions(-) diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index 175a82a7b9..75a0b5116e 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -21,12 +21,18 @@ function fakeParent(): Agent { vi.setConfig({ testTimeout: 30_000 }) /** - * `vi.waitFor` with a contention-proof timeout: the 1s default flaked - * repeatedly on the CI coverage lane, where worker-thread cold start competes - * with three sibling vitest workers for CPU. Every wait in this file is for - * something that WILL happen (a worker starting, a child registering) — a - * generous bound only removes the flake, it cannot mask a genuine hang (the - * file-wide test timeout above still fences those). + * `vi.waitFor` with a contention-proof default timeout: the 1s default + * flaked repeatedly on the CI coverage lane, where worker-thread cold start + * (CPU-bound — a fresh thread compiles the runtime) competes with three + * sibling vitest workers for CPU. The 10s default is for exactly those + * races — waiting for a worker to start, run its first script line, or + * deliver an async child-registration message to the host. It is NOT for a + * wait that asserts the HOST reacted PROMPTLY to something that already + * happened (a settled result, an observed worker death): those keep an + * explicit tight override below, or the generous default would silently + * accept a multi-second regression in host-side reap latency as passing + * (proven by injecting a 6s delay into one such reap and watching the + * un-overridden version of this helper still pass in ~6s). * @param assertion - retried until it stops throwing or the timeout elapses. * @param timeout - override for a wait that must stay deliberately tight. * @returns resolves when the assertion passes. @@ -545,8 +551,11 @@ describe('dsh-workflow-workerthread', () => { const result = await handle.result expect(result.stopReason).toBe('completed') // BEFORE dispose(): the settlement itself must have aborted the signal — - // without it this child would stay live until dispose's terminate. - await waitFor(() => { expect(aborted).toEqual(['workflow settled']) }) + // without it this child would stay live until dispose's terminate. This + // is a HOST-PROMPTNESS claim, not a cold-start race — a tight explicit + // bound (unlike the file default) so a multi-second reap regression + // cannot pass by outlasting the wait. + await waitFor(() => { expect(aborted).toEqual(['workflow settled']) }, 1000) await handle.dispose() }) @@ -769,7 +778,9 @@ describe('dsh-workflow-workerthread', () => { // A worker death is a stop reason like any other: workflow/end fires // with the error outcome — for a bus observer it is the only obituary. expect(runEnds).toEqual([{ stopReason: 'error', error: result.error, agentsStarted: 1 }]) - await waitFor(() => { expect(cancelled.length).toBe(1) }) + // Result already settled — this is the reap's promptness, not a + // cold-start race; tight explicit bound (see the helper's doc comment). + await waitFor(() => { expect(cancelled.length).toBe(1) }, 1000) await handle.dispose() }, 15_000) @@ -790,10 +801,12 @@ describe('dsh-workflow-workerthread', () => { expect(result.stopReason).toBe('error') expect(result.error).toContain('worker blew up') // The reap wound the stray child down (cancel + a CLEAN dispose). + // Result already settled — this is the reap's promptness, not a + // cold-start race; tight explicit bound (see the helper's doc comment). await waitFor(() => { expect(provider.runs.length).toBe(1) expect(provider.runs[0]!.disposed).toBe(true) - }) + }, 1000) await handle.dispose() }, 15_000) @@ -857,7 +870,10 @@ describe('dsh-workflow-workerthread', () => { const result = await handle.result expect(result.stopReason).toBe('error') expect(result.error).toContain('exit code 5') - await waitFor(() => { expect(provider.runs[0]!.disposed).toBe(true) }) + // Result already settled — this is the reap's promptness (bounded + // above the mock's fixed 300ms dispose delay, not a cold-start race); + // tight explicit bound (see the helper's doc comment). + await waitFor(() => { expect(provider.runs[0]!.disposed).toBe(true) }, 1000) await handle.dispose() }, 15_000) From 53f6a959e2f9721ac676a91bbda58dfd7121a1d9 Mon Sep 17 00:00:00 2001 From: kingwl Date: Fri, 10 Jul 2026 21:15:48 +0800 Subject: [PATCH 182/232] chore(lint): one shared project service; ignore harness-local .claude state MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Two independent multipliers were pushing bare `pnpm run lint` past node's default heap: 1. parserOptions.project expanded to every package tsconfig plus the root one — each matched config built its OWN ts.Program, and the dev paths map pulls sibling package SOURCES (plus the vendored Cordis stack) into every such program, so resident memory grew as sum-of-closures, not repo size: ~4.6 GB peak for 425 repo files. projectService shares one tsserver-style graph: ~2.0 GB peak, ~28 s → ~14 s wall. 2. `eslint .` traversed .claude/ harness-local state — stale worktree checkouts there carry tens of thousands of additional .ts files (whole-repo copies), roughly tripling the work again even under the project service. Other checkouts are not this one's sources; ignore them like node_modules. (#169 carries the identical ignore line inside its chain; the hunks dedupe on its next rebase.) Type-aware rules verified live under the service: a floating-promise probe still trips no-floating-promises. --- eslint.config.mjs | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/eslint.config.mjs b/eslint.config.mjs index cbb696bccb..c62d3e9739 100644 --- a/eslint.config.mjs +++ b/eslint.config.mjs @@ -22,6 +22,7 @@ export default tseslint.config( '**/lib/**', '**/node_modules/**', '**/.sessions/**', + '.claude/**', // harness-local state (worktrees, skills) — other checkouts, not this one's sources '**/.doc-typecheck-*/**', 'vendor/**', // vendored source keeps upstream style and idioms '**/*.js', @@ -38,7 +39,14 @@ export default tseslint.config( ], languageOptions: { parserOptions: { - project: ['./packages/*/*/tsconfig.json', './tsconfig.json'], + // One shared tsserver-style project service instead of 60+ standalone + // per-package programs: the old `project` glob built every package's + // full dependency closure (sibling sources via the dev `paths` map + + // the vendored Cordis stack) as its own program and kept them all + // resident — ~5 GB peak, an OOM past node's default heap. The service + // resolves each file to its nearest owning tsconfig and shares the + // graph. + projectService: true, tsconfigRootDir: import.meta.dirname, }, }, @@ -89,7 +97,9 @@ export default tseslint.config( ], languageOptions: { parserOptions: { - project: ['./tsconfig.json'], + // Same shared project service as the src block: test files resolve + // through the root tsconfig (its include covers every tests/ tree). + projectService: true, tsconfigRootDir: import.meta.dirname, }, }, From 6091c0a3dc192924fe7007e7cf12f1147c3f79d1 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 14:01:49 +0800 Subject: [PATCH 183/232] docs: rewrite the agent-scope RFC --- docs/config-catalog.md | 2 +- .../2026-07-08-agent-scope-contexts.md | 314 ++++++++++++++++-- packages/core/scope/README.md | 2 +- packages/subagent/subagent-fork/README.md | 2 +- .../subagent/subagent-inprocess/README.md | 6 +- .../subagent-inprocess/src/structured.ts | 42 +-- packages/subagent/subagent-spawn/README.md | 2 +- packages/subagent/subagent-spawn/src/index.ts | 17 +- packages/subagent/tool-subagent/README.md | 5 +- 9 files changed, 336 insertions(+), 56 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index f96286c5fa..65f37e59d3 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -635,7 +635,7 @@ export interface Config { } ``` -Source: [`packages/subagent/subagent-spawn/src/index.ts:36`](../packages/subagent/subagent-spawn/src/index.ts) +Source: [`packages/subagent/subagent-spawn/src/index.ts:35`](../packages/subagent/subagent-spawn/src/index.ts) ## `@deepseek-ai/dsh-system-prompt` diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index 7c140f1ec6..8d7a5ab251 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -4,32 +4,308 @@ Status: implemented ## Problem -The runtime is multi-agent — configuration can declare several agents, the ACP bridge creates one agent per client session, and the in-process subagent backends spawn/fork children as sibling agents on the same Cordis context — yet every extension surface was context-global. One tool registry fed every agent's prompt (a child spawned to summarize a file was offered bash, file-write, and the delegation tool itself, unbounded); one section list rendered the same persona for everyone (`SubagentStartRequest` could not express a per-child persona at all); every `agent/*`, `session/*`, and `tools/*` listener fired for every agent, so a decider waterfall written for one agent silently governed all of them unless its author remembered to self-filter. The gap was visible in the API: `SubagentCapabilities.toolFilter` was public vocabulary, yet every real provider declared `toolFilter: false` because per-agent tool visibility was unimplementable, and `structured.ts` carried a FIXME documenting the placeholder-schema/final-assembly-swap/refcount dance forced by global registration. +The harness runs multiple agents inside one application, but those agents need different capabilities and policies. A child created to summarize a file may need a different persona, a smaller tool set, and listeners that govern only its work; applying those contributions to every agent would leak authority and couple otherwise independent runs. + +This is not the same problem as running several isolated applications. The agents intentionally share the deployment's model adapters, persistence backend, tool implementations, and other services. What varies is the view assembled for one agent and the policy attached to its activity. + +The affected extension surfaces include both data and behavior: + +| Surface | Per-agent need | Failure when global | +|---|---|---| +| Tools | Hide dangerous or irrelevant tools; add a child-only result tool; replace one implementation for one agent | The model sees excess authority, or a child-specific tool leaks into every prompt | +| Prompt sections and variables | Give a child its own persona or runtime facts | Every agent receives the same instructions or values | +| Event listeners | Apply a hook, guard, or continuation policy to one agent | A listener written for one agent can veto or mutate another agent's work | +| Lifetime | Remove all of the above when the agent ends | Manual cleanup misses failure, cancellation, hot-reload, or owner-teardown paths | + +The model-visible and executable views must also agree. Hiding a tool only from the prompt is not a security boundary if a generated call can still execute it; hiding it only from execution produces a prompt that advertises unusable capabilities. The same consistency requirement extends to Code Mode bindings and user-interface presentation. + +The subagent API exposes the practical gap. A provider can accept a child persona, a tool filter, and a structured-output schema, but those options are honest only if two concurrent children can receive different registrations without mutating shared global state. ## Decision -Make the agent a registration scope, using the framework's own machinery rather than per-registry bolt-ons: +Each live agent owns a registration context named `agent.ctx`. Registering through the application's ordinary plugin context contributes globally; registering through `agent.ctx` contributes to that agent alone and ties the contribution's lifetime to the agent. -- **`dsh-scope`** (`packages/core/scope`, peer-deps cordis only, below `dsh-session`/`dsh-system-prompt` in the module-graph DAG): `createScope(ctx, key)` mints a tagged context over a synchronously-usable no-op-plugin fiber; `scopeOf(ctx)` reads the tag through the prototype chain; `scopeTarget(base, key)` builds the scope-filtered dispatch carrier over cordis `Context.filter`, composing the base's own filter, branded `Scoped` and runtime-marked for the dev invariants; `Scope.rawDispose` exposes the exact cordis disposer so a composite effect nests the scope's teardown at its yield position; `scopeHost` is the fail-loud test-side minter. -- **Ownership and visibility derive from ONE fact** — which context a registration went through: the scope's fiber owns the disposal, and the tag decides who sees it. An explicit `{ scope }` registration parameter could express "visible to X, disposed with Y", which is almost always a bug; the scoped context makes it unrepresentable. -- **`Agent.ctx`**: every live agent owns a scope context (key = the agent), minted inside the loop's composite lifecycle effect. Yield order gives teardown stop/drain → unregister → detach session → unwind scope; detach before the (async) scope unwind keeps store/registry rollback synchronous on every failure path, so a caller catching a throwing `create()` observes no half-created agent or session. `CreateAgentOptions.setup(agentCtx)` runs after the scope is minted and the agent registered, before `agent/session-start` and the loop start — setup REGISTERS the scoped world, it never drives (a dev invariant makes a pre-session-start turn a teaching error). -- **Two registration layers with shadowing**: `ctx.tools` and `ctx.systemPrompt` file a registration by the calling context's tag; a scoped tool/section/variable is visible to that agent alone, unwinds with it, and SHADOWS a same-named global contribution for that agent (most-specific-wins; within one layer duplicates still throw). Shadowing is the per-agent persona mechanism (a scoped `deployment:persona`) and the per-agent tool-variant mechanism (a scoped `bash` with the same model-facing name). -- **`tools.restrict({allow?, deny?})`**: a scoped, snapshot-at-registration mask over the GLOBAL tool surface with loud unknown-name validation; multiple restrictions intersect; scoped registrations are explicit grants that bypass restriction (what keeps a structured capture tool alive under an allow-list). One visibility function feeds prompt assembly, `get(name, scope?)`, and `execute`, so what the model is shown, what a presenter renders, and what dispatches can never disagree; out-of-view execution is `UNKNOWN_TOOL`, indistinguishable from nonexistent. -- **Scoped dispatch by rule**: an event about one agent's activity dispatches with that agent's carrier — all `agent/*` (via the fused `agentEvents(ctx, agent)`, which injects carrier and subject in one move so the correct dispatch is the shortest spelling), `session/created|event|flush` (carrier captured at `SessionStore.enter` from the entering context; `ctx.sessions.flush(session)` owns the awaited checkpoint dispatch), `tools/pre|post-execute` (by `exec.agent`), `system-prompt/assemble` (by `context.scope`; `assembleContextFor(agent)` builds the context), and `subagent/start|end` (by the delegating parent). Registry-subject notifications (`tools/change`, `system-prompt/change`, `subagent/provider-*`) stay deliberately unfiltered. A listener registered through `agent.ctx` hears only its agent; plain plugin listeners keep hearing everything; `{ global: true }` bypasses filtering. -- **Enforcement**: dev-invariants assert at cordis's `internal/dispatch` seam that every scoped-family dispatch carries a carrier keyed to the same subject its arguments name, and that an assembly context never carries `agent` without `scope`; the `verify-scoped-dispatch` gate pins the invariant table against the declaration docs so the two cannot drift. -- **The seam becomes honest**: spawn/fork advertise `{ outputSchema, depthLimit, toolFilter, persona }` all true (ACP all false); the driver composes the child's scoped world in the setup window; a parent-scope teardown effect links each child to its parent through the memoized handle (structured concurrency — a disposed parent reaches its subtree even if the delegating tool's `finally` never runs); `structured.ts` collapses to scoped registrations with a call-keyed two-phase commit and one scoped prepend re-assert listener. +The rule is intentionally small enough to be the normal plugin-author mental model: + +| Registration context | Visibility | Lifetime owner | +|---|---|---| +| Ordinary plugin context | Every agent | The registering plugin | +| `agent.ctx` | Exactly that agent | That agent | + +The scope is flat. A child does not inherit registrations from its parent's scope; parent/child lineage remains explicit session data. A child sees the deployment-global layer plus its own layer, which prevents accidental authority inheritance through an agent tree. + +This decision is implemented by the [`dsh-scope` primitive](../../../../packages/core/scope/README.md), scope-aware tool and prompt registries, scope-filtered event dispatch, and an agent lifecycle that creates and destroys the entire scoped world as one ordered operation. + +## Background: the Cordis concepts used by the design + +The implementation reuses four Cordis mechanisms. Readers do not need Cordis internals beyond this section; the [Cordis primer](../../../cordis-primer.md) is the broader reference. + +### Contexts provide services + +A Cordis context is the object through which a plugin reaches shared services such as `ctx.tools`, `ctx.systemPrompt`, and `ctx.sessions`. A service call retains the context used to access it, so a registry can tell whether a registration came through an ordinary plugin context or through an agent's context without adding a scope argument to every method. + +Contexts also represent a capability view. A derived context can reach only the services made available by the plugin that created it. Handing out `agent.ctx` therefore hands out the agent loop's injected service surface, a deliberate part of the `Agent.ctx` contract rather than an ambient root context. + +### Effects own registrations + +Registrations are Cordis effects: adding a tool, prompt section, or listener returns cleanup behavior owned by the context's runtime unit, called a fiber. Disposing a fiber unwinds all effects registered through it, which is the basis for hot reload and reliable cleanup. + +`dsh-scope` creates a no-op plugin fiber for each scope. The fiber contributes no behavior of its own; it exists to provide one lifetime bucket for everything registered through the scoped context. + +### Event dispatch can filter listeners + +Cordis decides which listeners receive an event by inspecting the object used as the dispatch receiver, known as the event's `this` value. `dsh-scope` supplies a receiver with a filter: unscoped listeners are admitted for compatibility, while a scoped listener is admitted only when its key matches the event's subject. + +### Disposal order requires explicit nesting + +Cordis may dispose sibling effects concurrently. When order matters, a generator effect yields the exact disposer functions to create a nested last-in-first-out chain; wrapping a disposer in another function breaks the identity Cordis uses to remove it from the concurrent sibling set. + +This detail drives both `Scope.rawDispose` and the convention that registry `register` methods return their exact Cordis disposer. It is what lets agent teardown wait for the loop, then unregister the agent, then detach the session, rather than racing those operations. + +## Scope model + +The scope primitive joins visibility and ownership while remaining independent of the agent packages. This lets lower-level packages such as sessions and prompt assembly participate without depending upward on the agent loop. + +### One registration fact controls two properties + +The decisive fact is which context performed a registration. The scope tag selects its visibility layer, and the same context's fiber owns its disposal. + +Keeping those properties coupled prevents a dangerous state such as “visible to agent A but disposed with unrelated plugin B.” An API shaped as `register(value, { agent })` would make that state expressible and would retain global registration as the easy-to-forget default. + +### Scope keys are opaque identities + +A scope key is an object compared by identity, not a string or database identifier. The harness uses the live `Agent` object as its own key, so event payloads and execution records that already carry an agent can select the right scope without translating through another registry. + +Object identity decouples a live scope from externally meaningful or sequentially reused string IDs. The key is meaningful only during the live agent's lifetime. + +### The primitive has four responsibilities + +The public API is small; the package README carries the exact signatures. + +| Responsibility | Mechanism | +|---|---| +| Create an ownership bucket | `createScope(context, key)` mounts the no-op fiber and returns its derived context | +| Read the registration layer | `scopeOf(context)` reads the nearest inherited scope tag | +| Filter event delivery | `scopeTarget(subject, key)` creates the dispatch carrier | +| Tear down in a larger ordered lifecycle | `Scope.rawDispose` exposes the exact fiber disposer | + +Derived contexts inherit the tag, and a nested scope replaces it with the nearer key. This allows `agent.ctx.plugin(...)` to build a reusable profile whose registrations remain scoped to the same agent. + +### Scoping is explicit at each seam + +The scoped context automatically supplies effect ownership, but it does not magically change every service operation. A scope-aware registry must read `scopeOf()` when registering, and a scope-filtered event dispatcher must provide a carrier naming the operation's subject. + +Read and execution operations select their subject explicitly: callers use `tools.schemas(agent)`, `tools.get(name, agent)`, `tools.execute({ agent, ... })`, or `systemPrompt.assemble({ scope: agent, agent })`. Calling `agent.ctx.systemPrompt.assemble()` with an empty assembly context still asks for the global layer. This separation lets a shared service operate on behalf of any agent while making the subject visible at the call site. + +## Registration resolution + +The tool and system-prompt services each keep a global layer plus a map of per-scope layers. Resolution combines only the global layer and the requesting agent's own layer. + +### Scoped names shadow global names + +For named contributions, the scoped definition wins over a global definition with the same name. Duplicates inside one layer still fail loudly. + +Shadowing is what makes a child persona ordinary configuration: the system-prompt service owns a global `deployment:persona`, and a child registers another section with that name through its context. The same rule supports a per-agent implementation of a model-facing tool without renaming the tool. + +Tool-schema providers are additive rather than named, but a provider registered through `agent.ctx` is consulted only for that agent's assemblies. Prompt variables use the same named-shadowing rule as sections and tools. + +### Restrictions mask global tools; scoped tools are explicit grants + +`agent.ctx.tools.restrict({ allow, deny })` filters the global tool layer for that agent. `allow` keeps only listed names, `deny` removes listed names, and multiple restrictions intersect so independently installed policies can only reduce the global surface. + +Restrictions do not remove tools registered in the agent's own layer. A scoped tool is an explicit grant, which is necessary for facilities such as a child's `structured_output` capture tool to remain available under a restrictive allow-list. + +The restriction snapshots its arrays when registered, validates every named tool against the current pre-restriction universe, and rejects an empty filter. These choices make configuration mistakes loud and prevent later caller mutation from changing a live policy. + +An out-of-view tool resolves exactly like an unregistered tool and returns `UNKNOWN_TOOL` if called. This avoids exposing whether a hidden global implementation exists. + +### One visibility function feeds every consumer + +The tool registry defines one canonical `visible()` rule and every consumer uses it for prompt schemas, lookup, execution, Code Mode's generated SDK and bindings, timeout-policy lookup, Cordis inspection, and ACP presentation. A model cannot be shown one definition while execution or the UI resolves another. + +Code Mode introduces one intentional distinction. A restriction is per-agent runtime state, so a globally configured `toolOrder` may name a restricted-away tool and simply leave an empty position for that agent. By contrast, `mode: 'code'` is deployment configuration that deliberately collapses the wire-visible universe to `run_code`; a `toolOrder` that still names native tools is invalid configuration and fails every assembly. + +To preserve this distinction, a prompt tool provider returns both the post-restriction schemas and the pre-restriction `knownNames` universe. Ordering validates names against the latter but orders only the former. + +## Scoped event delivery + +Registrations alone are insufficient: a listener installed for one agent must hear only events about that agent. Scoped dispatch applies that rule while preserving the existing behavior of global plugins. + +### Delivery is global-plus-matching-scope + +For an event about agent A, the dispatch carrier admits ordinary unscoped listeners and listeners registered through A's context. It rejects listeners registered through every other agent context. + +A subject-less dispatch, such as an agent-less tool execution or a bare session created outside an agent scope, admits only unscoped listeners. Cordis's explicit `{ global: true }` listener option still bypasses filtering for infrastructure that intentionally observes everything. + +Events about registry membership stay unfiltered. A notification that a tool or provider was added concerns shared registry state rather than one agent's activity, so scoped subscribers to `tools/change`, `system-prompt/change`, or `subagent/provider-*` still hear the global notification. + +### Each event family has one scope source + +The event subject determines the key; callers do not choose an unrelated scope. + +| Event family | Scope key | +|---|---| +| `agent/*` | The event's agent | +| `tools/pre-execute`, `tools/execute`, `tools/post-execute` | `execution.agent`, or no key for an agent-less call | +| `system-prompt/assemble` | The assembly context's scope | +| `session/created`, `session/event`, `session/flush` | The owner scope captured when the session enters the store | +| `subagent/start`, `subagent/end` | The delegating parent agent | + +Agent events use `agentEvents(context, agent)`, which creates the carrier and injects the same agent as the first event argument in one operation. Prompt assembly similarly uses `assembleContextFor(agent)` to set both the human-friendly `agent` field and the scope selector. These fused helpers make a mismatched carrier and subject difficult to express. + +The session store captures its carrier when a session is entered because later appends and flushes may originate from code that no longer has the agent's context in hand. `ctx.sessions.flush(session)` is the only durability-checkpoint entry point, so callers cannot forget the captured carrier. + +### The carrier is method-transparent + +Cordis passes the dispatch carrier to a function-style listener as `this`. Agent event declarations allow a listener to call methods such as `this.send(...)`, so the carrier must behave like the real subject rather than merely look like it. + +The carrier is a JavaScript proxy whose property reads use the real subject as receiver and whose methods are bound to that subject. This matters for classes with native private fields: calling a method with the proxy itself as receiver would throw because the proxy does not possess the class's private-field identity. + +The proxy preserves the subject's own event filter, writes through to the subject, returns the real constructor, and obeys JavaScript's invariants for frozen own properties. Its object identity is intentionally not transparent; the actual subject is also present in event arguments whenever identity matters. + +`Scoped` is a TypeScript-only marker requiring a carrier at scoped dispatch sites. It adds no runtime behavior; runtime carrier marks and development invariants provide the corresponding check for JavaScript and casted code. + +## Agent creation and teardown + +An agent's scope, session, registry entry, and driver loop form one lifecycle. Creating them inside one composite effect gives both rollback on partial construction and deterministic teardown on every ownership path. + +### Creation has a deliberate composition window + +Agent creation proceeds in this order: + +1. Construct the live agent object. +2. Mint its scope and assign `agent.ctx`. +3. Enter the session through `agent.ctx`, capturing the session's carrier. +4. Announce `session/created`. +5. Register the agent, which announces `agent/created`, so setup code can resolve it. +6. Run `CreateAgentOptions.setup(agentCtx)` to compose scoped tools, prompt contributions, restrictions, listeners, or child plugins. +7. Emit `agent/session-start`. +8. Start the driver loop. + +The setup callback runs inside the storage rollback boundary and before the first prompt assembly. A synchronous throw removes the agent and session and unwinds every scoped registration, so no half-created entry keeps either ID occupied. + +The two creation notifications occur before setup. Observers can therefore see the pre-setup world, and listeners installed by setup do not receive this agent's `session/created` or `agent/created`; rollback cannot retract external side effects those earlier listeners performed. This is a current atomicity limitation, not a guarantee provided by the setup window. + +Setup performs direct synchronous registrations but does not drive the agent. Calling `send`, `steer`, or `inject` there could open a turn before `agent/session-start`, reversing a lifecycle contract used by bridges and hooks; development invariants report that misuse at the first `turn/start`. Mounting an asynchronously activating child plugin also does not extend the synchronous setup window unless its activation ordering is separately awaited. + +### Teardown waits for one quiescent boundary + +The yielded disposers produce this teardown order: + +1. Request the loop to stop and await its actual exit, including its closing session events and durability flush. +2. Unregister the agent. +3. Detach the session from the store. +4. Unwind the scope's listeners and registrations. + +Detaching the session before the asynchronous scope unwind keeps registry and store rollback synchronous on construction failures. Scoped listeners remain installed through the stop-and-drain phase, so they hear the final flush before the session detaches. + +Cordis disposers are single-shot but a second call does not necessarily await a first call already in progress. The agent lifecycle therefore owns a shared completion promise in addition to the raw disposer. Tool cleanup, parent teardown, explicit `AgentHandle.dispose()`, and owner-fiber unload all await the same fully quiescent result. + +Every registry returns its exact effect disposer so the composite lifecycle can preserve this order even when the whole owner fiber unloads. Returning a wrapper would leave the inner registration as a concurrently disposed sibling and could emit `agent/disposed` while the final turn was still draining. + +## Subagent composition + +The subagent seam demonstrates why agent scoping exists: a provider can compose a child-specific world with ordinary registrations and let the agent lifecycle own it. + +### Persona and tool filters become real capabilities + +The in-process spawn and fork providers advertise persona and tool-filter support because their child setup can register a shadowing `deployment:persona` section and a tool restriction through the child's context. ACP remains honest about not supporting those capabilities because it delegates to a separate process whose registration context is not locally available. + +Omitted configuration stays absent. This matters for schema-driven configuration: a materialized empty `allow` list means “allow nothing,” which is not equivalent to an omitted list, and an empty filter is not equivalent to no filter. The configuration schema preserves those distinctions before setup calls `restrict`. + +### Parent disposal owns the subtree + +After creating a child, the in-process driver registers the child's memoized disposer as an effect on the parent scope. Disposing a parent therefore reaches the whole descendant tree even if the delegating tool's `finally` block never runs. + +This is structured concurrency expressed through ownership rather than through scope inheritance. The child still has a flat capability view—global plus child-only registrations—while its lifetime is linked explicitly to the parent. + +### Structured output becomes per-child state + +A structured child registers a real-schema `structured_output` tool and its instruction section through its own context. Concurrent children can carry different schemas because each resolves only its own tool definition; no placeholder global schema, reference count, or strip-for-other-agents pass is needed. + +Four scoped listeners enforce the terminal protocol: + +1. An outer prompt-assembly listener reasserts the exact tool schema and instruction after downstream listeners have run. It replaces an existing tool in place, appends it when absent, removes duplicates, and restores the instruction to its order-190 section band. +2. A tool pre-execution listener denies calls after a value has been captured, preventing later side effects in the same model response. +3. A tool post-execution listener commits a staged value only if the final pipeline decision accepts that same execution. +4. A turn-continuation listener stops the child after capture instead of spending another model step merely because a tool ran. + +Staging is keyed by the `ToolExecution` object's identity in a `WeakMap`, not by the model or adapter's call ID. Only the pipeline trip whose tool body staged a value can commit it; a blocked trip cannot leave state that a later call with a reused ID accidentally promotes. The weak key also allows an abandoned stage to be reclaimed without global cleanup bookkeeping. + +## Correctness enforcement + +Scoping errors are dangerous because a missed carrier silently restores global delivery. The implementation therefore makes the safe path short and checks it at type, runtime, test, and documentation boundaries. + +### Compile-time and API shaping + +Scoped event declarations require the `Scoped` carrier marker. `agentEvents` couples carrier creation to the agent argument, `assembleContextFor` couples agent prompt facts to the scope selector, and session flush is a service method that owns carrier lookup. + +These TypeScript checks improve authoring but are not treated as a security boundary: JavaScript callers, casts, and hand-written dispatches can bypass them. + +### Development-time invariants + +The invariants plugin observes Cordis's internal dispatch seam. For every scope-filtered event it verifies that a carrier exists and, where the subject is present in the arguments, that the carrier key is the same object. Session and subagent lifecycle payloads do not expose the owner key, so their runtime check proves carrier presence only; the session store and subagent service centralize the dispatch spelling that selects the key. The plugin also rejects an assembly context whose `agent` and `scope` fields disagree and a setup callback that opens a turn before `agent/session-start`. + +The invariant checks run before listener delivery, so a violation points at the dispatching call site instead of appearing later as cross-agent behavior. + +### Drift gates and focused tests + +`verify-scoped-dispatch` compares the runtime invariant table with the event declarations marked as scope-filtered. The generated event matrix also rejects a declared event with no recognized dispatcher, preventing helper-shaped calls from disappearing silently from the architecture documentation. + +Focused tests cover scoped visibility, shadowing, restrictions, carrier transparency, setup rollback, teardown order, shared quiescence, session delivery, structured-output tamper recovery, stale-stage isolation, Code Mode bindings, and parent-child disposal. The [events catalog](../../../cordis-catalog/events.md) remains the exhaustive event contract rather than being duplicated here. ## Alternatives considered -- **Explicit scope parameters on every registration API** (`tools.register(def, {agent})`): forgettable — omitting the option is global, so leak-by-default survives; no lifecycle coupling; and it can express visible-to-X-disposed-with-Y, which is almost always a bug. -- **Per-agent `ctx.isolate()` service instances**: isolation is a bulkhead for co-hosting independent applications, not intra-app scoping. Resolution picks exactly one instance per name — "deployment tools plus my tools" needs a hand-built delegating merge registry per service — and single-subscription observers (persistence, the ACP bridge) would have to discover and subscribe per agent. -- **Event-filtering only** (scoped listeners, global registries): leaves the model-visible surfaces — tool schemas, personas — unscoped, which is the half that makes `toolFilter` and per-child personas impossible. -- **Vendored-cordis support** (a first-class scope concept in the framework): more invasive vendor drift for no additional capability; `extend` + `Context.filter` + a no-op plugin fiber already compose the same semantics from public primitives. +The alternatives below solve only part of the problem or separate visibility from ownership, which would make safe composition harder to reason about. + +### Pass an agent or scope option to every registration + +An API such as `tools.register(definition, { agent })` makes global registration the leak-by-omission default and requires every registry to invent parallel scope plumbing. It also lets visibility point at one agent while cleanup belongs to an unrelated context. + +The chosen design leaves existing registry signatures unchanged and uses the calling context as the single source of both facts. + +### Create an isolated service instance per agent + +Cordis isolation selects one service instance for a context. Agent composition needs a merged view—deployment-global tools plus one agent's additions—not a choice between two independent registries. + +Per-agent service instances would require delegating merge registries for every scoped service and would force single-subscription infrastructure such as persistence and ACP to discover and subscribe to each new instance. Isolation remains the right bulkhead for co-hosting independent applications, not for agents collaborating inside one application. + +### Filter events but keep registries global + +Listener filtering prevents a hook from intercepting the wrong agent, but it does not scope the model-visible tool schemas, prompt sections, variables, or executable tool lookup. Persona, tool filtering, and concurrent structured-output schemas would remain impossible or require ad hoc mutation. + +### Add first-class scope support to vendored Cordis + +Cordis already exposes the primitives needed for this design: derived contexts, effect-owning plugin fibers, and listener filtering through the dispatch receiver. Modifying the vendored framework would add synchronization and maintenance cost without providing an additional harness capability. + +### Give each subsystem a separate per-agent API + +Tool filters, prompt profiles, listener predicates, and session routing can each be implemented independently. That approach multiplies concepts, cleanup paths, and opportunities for the views to disagree. + +The shared scope primitive gives every subsystem the same answer to “which agent sees this?” and “when does it go away?” while letting each registry retain its own domain-specific resolution rules. ## Consequences -- Plugin authors get one new concept: register through `agent.ctx` for one agent, through your plugin context for everyone. The registration APIs are unchanged; scope-filtered events document themselves in the catalog. -- The loop's dispatch discipline is enforced three ways: `Scoped` `this`-types make a bare subject a compile error, the fused helpers make the correct spelling the shortest, and the dev invariants throw on a mis-keyed or missing carrier at the dispatching call site. -- `toolOrder` validates against the providers' pre-restriction `knownNames` universe, so a deployment order listing a global tool stays compatible with children that `restrict()` it away (a typo still fails every assembly loudly). -- A scoped listener's own disposer runs after the session leaves the store on teardown (detach precedes the scope unwind); it heard the final stop/drain flush while attached, so nothing durable is lost. -- Deliberately out of scope, buildable on the primitive with no core change: named profile registries (`agentCtx.plugin(...)` already works), per-agent `fs/*` policy, `llm/*` scoping, and background subagents (the parent-scope teardown effect is already shaped for them). +The design adds one central concept and some low-level implementation machinery. In return, it makes per-agent composition ordinary, leak-resistant, and lifecycle-safe. + +### Benefits + +- Plugin authors use the same registration APIs globally or per agent; only the context changes. +- An agent's prompt, executable tools, Code Mode bindings, policy listeners, and UI definitions resolve from the same scoped view. +- Agent disposal revokes its registrations automatically, including failure and hot-reload paths. +- Subagent persona, tool filtering, structured output, and parent-owned teardown compose without global mutation. +- Existing unscoped plugins remain global observers and contributors, preserving the deployment-wide extension model. + +### Costs and constraints + +- Every agent-subject event dispatcher must carry the correct scope; types, fused helpers, invariants, and gates exist because omission would otherwise fail open to global delivery. +- `agent.ctx` is a capability-bearing context. The loop plugin's injected service set determines what holders can reach. +- Scoped registry layers consume memory for the agent lifetime and add a two-layer resolution step, then disappear on scope disposal. +- The dispatch carrier is proxy-shaped and not identity-equal to its subject, even though property access and method calls are transparent. +- Restrictions are flat and apply only to the global tool layer; scoped registrations are deliberate grants, and parent scopes do not confer capabilities on children. +- The generic `Scope.dispose()` and `ScopeHost.dispose()` normalize Cordis's single-shot disposer but do not give racing callers a shared quiescence promise; the agent lifecycle adds that stronger boundary itself. +- Setup is a synchronous contract, but its current `(Context) => void` TypeScript shape accepts an `async` function and the runtime does not inspect the returned promise; asynchronous setup can escape rollback and race the first assembly. + +### Deliberate boundaries + +The primitive is general, but this decision scopes only the surfaces needed for coherent agent composition. Per-agent filesystem policy, LLM adapter selection, named profile registries, and background subagents can build on the same context without changing the core scope model. diff --git a/packages/core/scope/README.md b/packages/core/scope/README.md index 18961e42fd..0063ab8b2f 100644 --- a/packages/core/scope/README.md +++ b/packages/core/scope/README.md @@ -15,6 +15,6 @@ Scoped-context registration primitive. `createScope(ctx, key)` mints a Cordis co ## Design contract -Ownership and visibility derive from ONE fact — which context a registration went through. An explicit `{ scope }` registration parameter could express "visible to X, disposed with Y", which is almost always a bug; the scoped context makes it unrepresentable. Rationale and alternatives: the agent-scoped-registration RFC (`docs/rfc/implemented/architecture/2026-07-08-agent-scoped-registration.md`, landing with this change set). +Ownership and visibility derive from ONE fact — which context a registration went through. An explicit `{ scope }` registration parameter could express "visible to X, disposed with Y", which is almost always a bug; the scoped context makes it unrepresentable. Rationale and alternatives: [the agent-scope RFC](../../../docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md). Handing out a scoped context hands out the minting plugin's service-resolution capability (resolution walks the minting fiber's dependency chain, not the holder's) — mint scopes from a plugin whose `inject` surface is what scope holders should reach. diff --git a/packages/subagent/subagent-fork/README.md b/packages/subagent/subagent-fork/README.md index 1abd7951fd..c626775945 100644 --- a/packages/subagent/subagent-fork/README.md +++ b/packages/subagent/subagent-fork/README.md @@ -12,7 +12,7 @@ The seam this rides on: `CreateAgentOptions.seed` (added on `dsh-agent`, threade ## Capabilities -`{ outputSchema: true, depthLimit: true, toolFilter: false }` — identical to spawn (the depth/model/structured-output behavior is the shared driver's). +`{ outputSchema: true, depthLimit: true, toolFilter: true, persona: true }` — identical to spawn because the shared driver owns depth, model, persona, tool-filter, and structured-output behavior. ## Config diff --git a/packages/subagent/subagent-inprocess/README.md b/packages/subagent/subagent-inprocess/README.md index a5c293c7da..8e88505366 100644 --- a/packages/subagent/subagent-inprocess/README.md +++ b/packages/subagent/subagent-inprocess/README.md @@ -23,10 +23,10 @@ Runs a child as a child [`Agent`](../../core/agent) on the same cordis context ( `attachStructuredRuntime(childCtx, schema)` registers the run's whole enforcement surface as SCOPED registrations on the child's `agent.ctx` — riding the child's fiber (a backend hot-reload mid-run cannot unregister anything; a disposed child leaves no residue) and visible to that child alone (two concurrent structured runs never interact; no placeholder schema, no strip-for-everyone-else, no refcounted global state): -- the `structured_output` capture tool with the run's REAL schema as its registered `parameters`, validating each call (`validateStructuredValue`) — violations become an `INVALID_ARGS` isError the model retries in-turn; a valid call STAGES the value keyed by its call id; +- the `structured_output` capture tool with the run's REAL schema as its registered `parameters`, validating each call (`validateStructuredValue`) — violations become an `INVALID_ARGS` isError the model retries in-turn; a valid call STAGES the value in a `WeakMap` keyed by that call's `ToolExecution` object; - the calling instruction as an ordinary order-190 scoped prompt section (the demand travels with the tool, as prompt state of exactly one agent); -- a scoped `system-prompt/assemble` re-assert (`prepend: true` = outermost): whatever downstream listeners mutate or replace, the child's assembly always carries its capture tool and instruction — the loop logs the rendered assembly as the step's `request/header`, so the demand is reconstructable log state; -- a scoped `tools/post-execute` COMMIT (`prepend: true`): the staged value becomes the run's result only when the final decision accepts THE SAME CALL that staged it — call-keyed, so a stale stage orphaned by an outer short-circuiting listener is dropped, never promoted on a later call's acceptance; +- a scoped `system-prompt/assemble` re-assert (`prepend: true`) that post-processes its downstream chain, replacing conflicting entries with the child's capture tool and instruction — the loop logs the rendered assembly as the step's `request/header`, so the demand is reconstructable log state; +- a scoped `tools/post-execute` COMMIT (`prepend: true`): the staged value becomes the run's result when that same execution's downstream post-execute decision accepts it. Execution-object identity prevents an orphaned stage from matching a later call even when an adapter reuses the call id; - a scoped `tools/pre-execute` deny for any call arriving after the capture — terminal means terminal WITHIN the step; - a scoped `agent/turn-continuation` veto (`prepend: true`) stopping the child's turn once its output is captured, so a successful capture doesn't buy a wasted extra model step. diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts index def740ec25..1b1bef839b 100644 --- a/packages/subagent/subagent-inprocess/src/structured.ts +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -11,22 +11,21 @@ * enforcement listeners fire only for this child (scope-filtered dispatch). * Registration lifetime rides the child's fiber, so a backend hot-reload * mid-run cannot unregister the capture tool out from under a live child, and - * a disposed child leaves no residue — no placeholder schema, no - * strip-for-everyone-else, no refcounted global runtime, no `WeakMap` state. + * a disposed child leaves no residue — no placeholder schema, + * strip-for-everyone-else pass, or refcounted global runtime. * * Four listeners enforce the contract: * - * - `system-prompt/assemble` (prepend, scoped): FINAL-ASSEMBLY re-assert — - * whatever downstream listeners mutated or replaced, the child's assembly - * always carries its capture tool and the trailing instruction section. The - * registry already contributes both; this outermost wrapper preserves the - * guarantee against a (global) listener that strips or replaces the - * assembly — placement-preserving: tools are replaced in place, the section - * re-inserted at its ascending-order position, so the untampered path keeps - * the registry's ordering (identical output, up to intra-band section order - * — which carries no contract). The loop logs the rendered assembly as the - * request header, so the demand is reconstructable log state, never a - * wire-only mutation. + * - `system-prompt/assemble` (prepend, scoped): assembly re-assert — the + * listener post-processes its downstream chain so a listener inside that + * chain cannot leave the child's capture tool or instruction stripped or + * replaced. Tools are replaced in place and the section is re-inserted at + * its ascending-order position, so the untampered path keeps the registry's + * ordering (up to intra-band section order, which carries no contract). A + * listener prepended later can still wrap and transform this result; this is + * an ordinary waterfall listener, not a service-level finalizer. The loop + * logs the rendered assembly as the request header, so the demand is + * reconstructable log state, never a wire-only mutation. * - `agent/turn-continuation` (prepend, scoped): stop the child's turn once * its output is captured — the loop's default "had tool calls ⇒ continue" * would buy a wasted extra model step per structured child. @@ -36,8 +35,9 @@ * effects after the final answer was accepted. * - `tools/post-execute` (prepend, scoped): the capture COMMIT. The tool body * only STAGES the validated value, KEYED BY THE EXECUTION OBJECT in a - * WeakMap; it becomes the run's captured result only when the final - * post-execute decision accepts THAT SAME pipeline trip. Execution-keyed + * WeakMap; it becomes the run's captured result when this listener's + * downstream post-execute decision accepts THAT SAME pipeline trip. A + * later-prepended wrapper remains outside that decision. Execution-keyed * staging makes the stale-stage class structurally impossible: a value * orphaned by an outer short-circuiting listener (a post-execute block, or * a pre-execute deny whose call never dispatched) can never match another @@ -125,7 +125,7 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut if (violations.length > 0) throw new ToolArgsError(violations) // Two-phase commit, KEYED BY THIS EXECUTION: the body only stages; the // post-execute listener promotes exactly this pipeline trip's entry - // when the final decision accepts it. + // when its downstream decision accepts it. staged.set(exec, { value: args }) return Promise.resolve([{ type: 'text', text: 'Structured output recorded.' }]) }, @@ -137,10 +137,12 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut text: STRUCTURED_OUTPUT_INSTRUCTION, }) - // FINAL-ASSEMBLY re-assert (prepend = outermost): scoped dispatch means this - // fires only for the child's assemblies; `await next()` returns whatever the - // downstream chain (and any replacement assembly) produced, and the capture - // tool + instruction are re-asserted onto it if anything stripped them. + // PREPENDED assembly re-assert: scoped dispatch means this fires only for the + // child's assemblies; `await next()` returns whatever this listener's + // downstream chain produced, and the capture tool + instruction are + // re-asserted onto it if anything stripped them. A listener prepended later + // can still wrap and transform the returned assembly; this is not a + // service-level finalizer. childCtx.on('system-prompt/assemble', async function ( this: unknown, _assembly: PromptAssembly, _context: AssembleContext, next: () => Promise, ): Promise { diff --git a/packages/subagent/subagent-spawn/README.md b/packages/subagent/subagent-spawn/README.md index b976ef5a63..132fd4d732 100644 --- a/packages/subagent/subagent-spawn/README.md +++ b/packages/subagent/subagent-spawn/README.md @@ -10,7 +10,7 @@ The run mechanics live in the shared [`@deepseek-ai/dsh-subagent-inprocess`](../ ## Capabilities -`{ outputSchema: true, depthLimit: true, toolFilter: false }`. It constructs the child, so it enforces a recursion cap, and it supports structured output via the driver's [structured runtime](../subagent-inprocess/README.md) (acquired per structured run inside the driver — this backend registers nothing at apply). Tool-scoping is deferred (the service rejects a request needing it before `start` runs). +`{ outputSchema: true, depthLimit: true, toolFilter: true, persona: true }`. It constructs the child, so it enforces a recursion cap and composes the child's persona, global-tool restriction, and [structured runtime](../subagent-inprocess/README.md) inside the agent-creation setup window. This backend registers nothing at apply. ## Config diff --git a/packages/subagent/subagent-spawn/src/index.ts b/packages/subagent/subagent-spawn/src/index.ts index 53fa5967fd..61da4eb560 100644 --- a/packages/subagent/subagent-spawn/src/index.ts +++ b/packages/subagent/subagent-spawn/src/index.ts @@ -9,10 +9,10 @@ * ({@link startInProcessRun}); this backend just passes NO seed (a fresh * child). The fork backend is an independent peer over the same driver. * - * Structured output (`outputSchema`) is supported via the driver's shared - * structured runtime: the backend acquires it for its plugin lifetime (so the - * capture tool and request-shaping listeners exist before any run), and each - * structured run holds its own acquisition until it settles. + * Structured output (`outputSchema`) is supported through the driver's + * per-child scoped runtime: the child registers its real-schema capture tool, + * prompt instruction, and enforcement listeners inside the creation setup + * window, and its scope owns their lifetime. * * Plugin export shape: named `name`/`inject`/`Config`/`apply`, NO default. * @@ -25,11 +25,10 @@ import type { SubagentCapabilities, SubagentProvider, SubagentStartRequest } fro import { startInProcessRun } from '@deepseek-ai/dsh-subagent-inprocess' export const name = 'subagent-spawn' -// `tools` is deliberately NOT injected: the shared driver's structured runtime -// (acquired per structured RUN, not at apply) gates its own capture-tool -// registration on `tools` availability, so this backend's apply timing — and -// with it the provider-mirroring delegation tool's position in the -// model-visible tool list — stays what it was before structured output existed. +// `tools` is deliberately NOT injected: the shared driver registers structured +// output through the child's creation context, whose factory already requires +// the tool service. Keeping it out of this backend's inject list preserves the +// provider's independent apply timing. export const inject = ['subagents', 'agents'] /** Config: the registry name to register the provider under. */ diff --git a/packages/subagent/tool-subagent/README.md b/packages/subagent/tool-subagent/README.md index 6fe26d3083..715fb0b9db 100644 --- a/packages/subagent/tool-subagent/README.md +++ b/packages/subagent/tool-subagent/README.md @@ -14,7 +14,10 @@ The tool description and the `prompt` parameter description are DERIVED from the |---|---| | `provider` (required) | The `ctx.subagents` provider name to start runs on (`spawn`, `fork`, `acp`, …). | | `toolName` | The model-facing tool name to register (default `subagent`). Set a distinct value per load when exposing multiple providers, e.g. `subagent` + `subagent_acp`. | -| `agentOptions` | Default per-child `{ model? }` applied to every spawned child. (No per-child persona: the deployment persona is a context-wide section every agent shares.) | +| `agentOptions` | Default per-child `{ model? }` applied to every spawned child. | +| `persona` | Per-child persona that shadows the deployment persona; requires the provider's `persona` capability. | +| `toolFilter` | Per-child `{ allow?, deny? }` restriction over global tools; requires the provider's `toolFilter` capability. | +| `maxDepth` | Maximum delegation depth; requires the provider's `depthLimit` capability. | ## Lifecycle (synchronous collect) From 850796bb35b30298dd2ab9dc298672de48b75ea9 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 20:47:45 +0800 Subject: [PATCH 184/232] fix(tools): reserve the Code Mode transport --- packages/core/tools/README.md | 12 +-- packages/core/tools/src/code-mode.ts | 3 +- packages/core/tools/src/index.ts | 71 +++++++++---- packages/core/tools/tests/code-mode.spec.ts | 106 ++++++++++++++++++++ 4 files changed, 166 insertions(+), 26 deletions(-) diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index eb96366cab..2c423a61d4 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -11,15 +11,15 @@ tools: mode: native # native (default) | code | both ``` -`native` contributes every registered tool as a wire function definition — the default, byte-for-byte the pre-config behavior. `code` contributes exactly ONE wire tool, `run_code`, plus the generated `tools:sdk` prompt section (see [Code Mode](#code-mode)). `both` contributes every native definition AND `run_code` + the SDK section. Non-native modes require a loaded `ctx.codeRuntime` with `language: 'typescript'`; a missing or mismatched runtime rejects every prompt assembly with an actionable error, and a `systemPrompt.toolOrder` naming tools the mode no longer contributes rejects the assembly the same way. +`native` contributes every registered tool as a wire function definition — the default, byte-for-byte the pre-config behavior. `code` contributes exactly ONE wire tool, `run_code`, plus the generated `tools:sdk` prompt section (see [Code Mode](#code-mode)). `both` contributes every native definition AND `run_code` + the SDK section. In non-native modes `run_code` is reserved presentation infrastructure rather than a filterable capability: allow/deny restrictions cannot remove it, and registering, shadowing, or explicitly filtering that name fails loudly. Non-native modes require a loaded `ctx.codeRuntime` with `language: 'typescript'`; a missing or mismatched runtime rejects every prompt assembly with an actionable error, and a `systemPrompt.toolOrder` naming tools the mode no longer contributes rejects the assembly the same way. ### Public API -- `ctx.tools.register(definition: ToolDefinition): () => Promise | void` Register a tool. The layer is the CALLING context's scope (`dsh-scope`): a plain plugin context registers globally; an agent's `agent.ctx` registers for that agent alone, SHADOWING a same-named global tool there (per-agent tool variants). Duplicate names within one layer throw. Disposed with the calling fiber (= the agent, for scoped registrations). -- `ctx.tools.restrict(filter: ToolRestriction): () => Promise | void` Scoped-only (throws on a plain context): mask the GLOBAL tool surface for the calling agent — `allow` keeps only the listed tools, `deny` removes them; multiple restrictions intersect; scoped registrations bypass restriction as explicit grants. Snapshot-at-registration, loud unknown-name validation, `restrict({})` rejects (the materialized-empty-config trap). +- `ctx.tools.register(definition: ToolDefinition): () => Promise | void` Register a tool. The layer is the CALLING context's scope (`dsh-scope`): a plain plugin context registers globally; an agent's `agent.ctx` registers for that agent alone, SHADOWING a same-named global tool there (per-agent tool variants). Duplicate names within one layer throw; non-native modes also reject the reserved `run_code` transport name. Disposed with the calling fiber (= the agent, for scoped registrations). +- `ctx.tools.restrict(filter: ToolRestriction): () => Promise | void` Scoped-only (throws on a plain context): mask the GLOBAL end-capability surface for the calling agent — `allow` keeps only the listed tools, `deny` removes them; multiple restrictions intersect; scoped registrations bypass restriction as explicit grants. The reserved `run_code` transport remains available automatically and cannot be named explicitly. Snapshot-at-registration, loud unknown-name validation, `restrict({})` rejects (the materialized-empty-config trap). - `ctx.tools.get(name: string, scope?: ScopeKey): ToolDefinition | undefined` Resolution as one scope sees it (shadowing applied; a restricted-away global reads as absent) — presenters pass the calling agent so the card matches what executed. -- `ctx.tools.visible(scope?: ScopeKey): ToolDefinition[]` THE visibility function — restricted global layer ∪ the scope's own layer — feeding prompt assembly, `get`, and `execute`, so what the model sees and what dispatches can never disagree. -- `ctx.tools.knownNames(scope?: ScopeKey): string[]` The PRE-restriction name universe configuration (`toolOrder`, `restrict`) validates against: a typo fails loud while a restricted-away tool stays a normal absence. +- `ctx.tools.visible(scope?: ScopeKey): ToolDefinition[]` THE visibility function — restricted global layer ∪ the scope's own layer, plus the reserved transport in non-native modes — feeding prompt assembly, `get`, and `execute`, so what the model sees and what dispatches can never disagree. +- `ctx.tools.knownNames(scope?: ScopeKey): string[]` The PRE-restriction end-capability name universe `restrict` validates against: a typo fails loud while a restricted-away tool stays a normal absence. Presentation providers add reserved transport names separately when validating `toolOrder`. - `ctx.tools.schemas(scope?: ScopeKey): ToolSchema[]` Schemas of everything the scope can see (without the `execute` functions). The shipped tools' schemas are catalogued in [docs/tool-catalog.md](../../../docs/tool-catalog.md), generated by booting each tool plugin and harvesting this method (see [the tool-schema-catalog RFC](../../../docs/rfc/implemented/process/2026-07-02-tool-schema-catalog.md)). - `ctx.tools.execute(exec: ToolExecution): Promise` Execute one tool call through the `tools/pre-execute` → `tools/execute` → `tools/post-execute` pipeline. @@ -133,7 +133,7 @@ const bash = defineTool({ ### Code Mode -Under `mode: code` (or `both`) the registry turns the tool surface into a programming API, per the [Code Mode RFC](../../../docs/rfc/implemented/feature/2026-06-15-code-mode.md): the model writes a TypeScript program (the body of an async function) and passes it to the ONE wire tool `run_code`; the program runs in `ctx.codeRuntime` (the [code-execution seam](../../code-runtime/README.md) — the shipped backend is a worker thread) with one async binding per registered tool (`await tools.bash({...})`), and ONLY what it prints or returns re-enters the model's context. +Under `mode: code` (or `both`) the registry turns the tool surface into a programming API, per the [Code Mode RFC](../../../docs/rfc/implemented/feature/2026-06-15-code-mode.md): the model writes a TypeScript program (the body of an async function) and passes it to the reserved wire transport `run_code`; the program runs in `ctx.codeRuntime` (the [code-execution seam](../../code-runtime/README.md) — the shipped backend is a worker thread) with one async binding per visible end-capability tool (`await tools.bash({...})`), and ONLY what it prints or returns re-enters the model's context. Scope restrictions change those SDK bindings but cannot remove or replace the transport itself. - **The SDK section** (`tools:sdk`, order 150): a lazy prompt section regenerating, at each assembly, a `declare const tools: {...}` TypeScript declaration of every registered tool except `run_code` (exotic names via quoted keys), plus fixed usage instructions. Deterministic — lexicographic tool order, byte-identical text for an unchanged tool set (prefix-cache-friendly). The codegen (`jsonSchemaToTs`, exported) is TOTAL: constructs outside the `defineTool` subset degrade to `unknown`, never throw. - **The dispatch bridge** (`run_code`'s execute): every binding call is JSON-normalized BEFORE dispatch (a value that does not survive — `BigInt`, circulars — rejects that one call, so the dispatched form and the logged form are the same JSON value by construction), serialized through a per-run queue (even `Promise.all` executes the underlying `ctx.tools.execute()` calls one at a time in submission order — the tool contract carries no concurrency-safety metadata yet), gated by `tools/pre-execute`/`tools/post-execute` like any native call (a deny reaches the program as a binding rejection), and logged as one `tool/code-dispatch` session event (log-only: `deriveMessages()` never surfaces it) with the deterministic sub-id `:code:`. A failed sub-call REJECTS the program-side promise with the tool's error text — real code error handling, no bespoke envelope. A sub-call's `additionalContext` is deliberately DROPPED (no safe outlet mid-run without breaking tool-call/result adjacency; deferred until a real hook needs it through Code Mode). diff --git a/packages/core/tools/src/code-mode.ts b/packages/core/tools/src/code-mode.ts index 1eb63cea1a..c985eb852c 100644 --- a/packages/core/tools/src/code-mode.ts +++ b/packages/core/tools/src/code-mode.ts @@ -138,7 +138,8 @@ function asRunCodeMeta(meta: unknown): RunCodeMeta | undefined { /** * Build the `run_code` {@link ToolDefinition}: one required `code` parameter, * executed through the dispatch bridge described in the module doc. The - * registry registers it under non-native modes. + * registry reserves it as presentation infrastructure under non-native modes, + * outside the filterable global/scoped capability layers. * @param registry - the owning registry (sub-calls go through its `execute`, * bindings cover its registered tools). * @param requireRuntime - resolves `ctx.codeRuntime` or throws the loud diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index 5fe0d8c1b9..c3b708ecb8 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -359,8 +359,10 @@ export interface Config { * `deny` removes the listed ones; both present = allow first, then deny. * Restrictions never touch scoped registrations — a tool registered through * the same scope is an explicit grant that bypasses them (which is what keeps - * e.g. a structured-output capture tool alive under an allow-list). Multiple - * restrictions on one scope compose by intersection: every one must admit. + * e.g. a structured-output capture tool alive under an allow-list). The + * reserved `run_code` presentation transport is likewise outside capability + * filtering, and naming it explicitly is rejected. Multiple restrictions on + * one scope compose by intersection: every one must admit. */ export interface ToolRestriction { /** Global tool names that stay visible; everything else is removed. */ @@ -374,8 +376,8 @@ export interface ToolRestriction { * loop executes calls through the `tools/pre-execute` → `tools/execute` → * `tools/post-execute` pipeline. The registry contributes its schemas into the * system-prompt assembly — WHICH schemas is governed by its `mode` config - * (see {@link Config.mode}); under a non-native mode it also registers the - * `run_code` tool and the `tools:sdk` prompt section itself. + * (see {@link Config.mode}); under a non-native mode it also owns the reserved + * `run_code` presentation transport and the `tools:sdk` prompt section. * * Two registration layers (`@deepseek-ai/dsh-scope`): a registration through a * plain plugin context is GLOBAL (visible to every agent); one through a @@ -401,15 +403,24 @@ export class ToolRegistry extends Service { /** Snapshot-at-registration restriction filters, per scope (see {@link restrict}). */ private restrictions = new Map() private readonly mode: ToolPresentationMode + /** Reserved presentation transport, kept outside the filterable registration layers. */ + private readonly codeTransport: ToolDefinition | undefined constructor(ctx: Context, config: Config = {}) { super(ctx, 'tools') // The schema already defaulted an omitted mode; the ?? narrows the // optional-input type for direct (non-Loader) construction in tests. this.mode = config.mode ?? 'native' + // `run_code` is presentation infrastructure, not an end capability. It + // therefore does not enter the global layer: per-agent restrictions must + // not remove it, and a scoped registration must not shadow it. The + // visibility resolver appends this reserved definition after resolving + // the filterable global/scoped capability layers. + this.codeTransport = this.mode === 'native' + ? undefined + : createRunCodeTool(this, () => this.requireCodeRuntime()) ctx.systemPrompt.tools(context => this.wireSchemas(context.scope)) if (this.mode !== 'native') { - this.register(createRunCodeTool(this, () => this.requireCodeRuntime())) ctx.systemPrompt.section({ name: 'tools:sdk', order: SDK_SECTION_ORDER, @@ -442,7 +453,9 @@ export class ToolRegistry extends Service { * pre-restriction and a restricted-away tool in `toolOrder` is a normal * absence — while the MODE collapse is deployment config, so under * `mode: 'code'` the universe is `[run_code]` and a `toolOrder` naming a - * native tool is dead configuration that fails every assembly loud. + * native tool is dead configuration that fails every assembly loud. Under + * `mode: 'both'`, the provider adds the reserved transport to the + * capability-only {@link knownNames} universe for `toolOrder` validation. */ private wireSchemas(scope?: ScopeKey): ToolProviderResult { if (this.mode === 'native') return { schemas: this.schemas(scope), knownNames: this.knownNames(scope) } @@ -451,7 +464,7 @@ export class ToolRegistry extends Service { if (this.mode === 'code') { return { schemas: all.filter(schema => schema.name === RUN_CODE_NAME), knownNames: [RUN_CODE_NAME] } } - return { schemas: all, knownNames: this.knownNames(scope) } + return { schemas: all, knownNames: [...this.knownNames(scope), RUN_CODE_NAME] } } /** @@ -480,9 +493,10 @@ export class ToolRegistry extends Service { * with the scope, and shadowing a same-named global tool for that agent. * Throws if the SAME layer already has the name (cross-layer name twins are * the shadowing feature, not an error; the global-duplicate message names - * `agent.ctx` as the per-agent alternative). The visible schema set flows - * into prompt assembly automatically. Disposed with the calling fiber. - * Emits `tools/change` on register/unregister. + * `agent.ctx` as the per-agent alternative), or if a non-native mode reserves + * the `run_code` name for its presentation transport. The visible schema set + * flows into prompt assembly automatically. Disposed with the calling + * fiber. Emits `tools/change` on register/unregister. * @param definition - the tool's schema plus its execute (and optional * presentation) functions. * @returns the disposer that unregisters the tool. The exact @@ -491,6 +505,9 @@ export class ToolRegistry extends Service { */ register(definition: ToolDefinition): () => Promise | void { const scope = scopeOf(this.ctx) + if (this.codeTransport !== undefined && definition.name === RUN_CODE_NAME) { + throw new Error(`tool name "${RUN_CODE_NAME}" is reserved for the Code Mode presentation transport and cannot be registered or shadowed`) + } const dispose = this.ctx.effect(function* (this: ToolRegistry) { const layer = scope === undefined ? this.global : this.layerFor(scope) if (layer.has(definition.name)) { @@ -531,10 +548,13 @@ export class ToolRegistry extends Service { * name universe ({@link knownNames}) and throws on an unknown one (fail loud * beats a typo silently filtering nothing) — register restrictions after the * global tools they mask exist (the agent-creation `setup` window satisfies - * this). The filter is SNAPSHOT at registration: later caller mutation of - * the arrays changes nothing. Multiple restrictions compose by intersection. - * Scoped registrations bypass restrictions (explicit grants win). Disposed - * with the calling fiber (revocable independently); emits `tools/change`. + * this). A non-native mode's reserved `run_code` presentation transport is + * not a filterable capability; naming it explicitly throws, while omitting + * it from an allow-list cannot remove it. The filter is SNAPSHOT at + * registration: later caller mutation of the arrays changes nothing. + * Multiple restrictions compose by intersection. Scoped registrations + * bypass restrictions (explicit grants win). Disposed with the calling + * fiber (revocable independently); emits `tools/change`. * @param filter - global-surface mask: `allow` (keep only) and/or `deny` (remove). * @returns the disposer that lifts this restriction. The exact * Cordis effect disposer (single-shot): composite (generator) effects may @@ -553,6 +573,10 @@ export class ToolRegistry extends Service { ...filter.allow !== undefined ? { allow: [...filter.allow] } : {}, ...filter.deny !== undefined ? { deny: [...filter.deny] } : {}, } + if (this.codeTransport !== undefined + && [...snapshot.allow ?? [], ...snapshot.deny ?? []].includes(RUN_CODE_NAME)) { + throw new Error(`tools.restrict() cannot name reserved Code Mode presentation transport "${RUN_CODE_NAME}"; restrict end-capability tools instead`) + } const known = new Set(this.knownNames(scope)) const unknown = [...snapshot.allow ?? [], ...snapshot.deny ?? []].filter(name => !known.has(name)) if (unknown.length > 0) { @@ -604,7 +628,8 @@ export class ToolRegistry extends Service { * THE visibility function — one resolution feeding prompt assembly, * {@link get}, and {@link execute}: the global layer masked by the scope's * restrictions, unioned with the scope's own layer, scoped shadowing global - * on a name conflict. No scope = the unrestricted global view. + * on a name conflict, then the non-native mode's reserved `run_code` + * presentation transport. No scope = the unrestricted global view. * @param scope - the viewing scope (the agent), or undefined for the global view. * @returns the visible definitions (scoped shadows applied), in per-layer * registration order, global layer first. @@ -618,6 +643,10 @@ export class ToolRegistry extends Service { // Scoped layer second: same-name entries REPLACE (shadow) the global ones, // and grants bypass restrictions by construction (never filtered above). for (const [name, definition] of layer ?? []) result.set(name, definition) + // Presentation infrastructure is resolved last and outside capability + // filtering. Registration rejects this reserved name, so this set is an + // invariant assertion as well as protection against future layer changes. + if (this.codeTransport !== undefined) result.set(RUN_CODE_NAME, this.codeTransport) return [...result.values()] } @@ -631,6 +660,7 @@ export class ToolRegistry extends Service { * @returns the definition the scope resolves, or undefined when none is visible. */ get(name: string, scope?: ScopeKey): ToolDefinition | undefined { + if (name === RUN_CODE_NAME && this.codeTransport !== undefined) return this.codeTransport const shadowed = scope === undefined ? undefined : this.scoped.get(scope)?.get(name) if (shadowed) return shadowed if (!this.admits(scope, name)) return undefined @@ -658,10 +688,13 @@ export class ToolRegistry extends Service { } /** - * The PRE-restriction name universe for `scope`: every global name plus the - * scope's own layer, ignoring restrictions. This is the set configuration - * (`toolOrder`, `restrict()` filters) validates against, so a typo fails - * loud while a restricted-away tool remains a normal, non-erroneous absence. + * The PRE-restriction END-CAPABILITY name universe for `scope`: every global + * name plus the scope's own layer, ignoring restrictions. This is the set + * `restrict()` validates against, so a typo fails loud while a + * restricted-away tool remains a normal, non-erroneous absence. Reserved + * presentation transports are deliberately absent: `restrict()` rejects + * naming one, while {@link wireSchemas} adds it to the separate `toolOrder` + * validation universe when its presentation mode contributes it. * @param scope - the viewing scope (the agent); omitted = global names only. * @returns the known names, deduplicated. */ diff --git a/packages/core/tools/tests/code-mode.spec.ts b/packages/core/tools/tests/code-mode.spec.ts index f7f4b058d8..782447e7ec 100644 --- a/packages/core/tools/tests/code-mode.spec.ts +++ b/packages/core/tools/tests/code-mode.spec.ts @@ -1,11 +1,14 @@ import { describe, expect, it } from 'vitest' import { Context } from 'cordis' import { CallId } from '@deepseek-ai/dsh-llm' +import { createScope } from '@deepseek-ai/dsh-scope' +import type { Scope } from '@deepseek-ai/dsh-scope' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import { CodeRuntime } from '@deepseek-ai/dsh-code-runtime' import type { CodeRunRequest, CodeRunResult } from '@deepseek-ai/dsh-code-runtime' import ToolRegistry, { CodeRunFailedError, RUN_CODE_NAME, defineTool } from '@deepseek-ai/dsh-tools' import type { Config, PostToolDecision, ToolExecutionResult } from '@deepseek-ai/dsh-tools' +import { AgentId } from '@deepseek-ai/dsh-agent' import type { Agent } from '@deepseek-ai/dsh-agent' import { Session, SessionId } from '@deepseek-ai/dsh-session' import type { SessionEventMap } from '@deepseek-ai/dsh-session' @@ -54,6 +57,15 @@ async function setup(options: SetupOptions = {}) { return { ctx, tools: ctx.tools, systemPrompt: ctx.systemPrompt, runtime: runtime! } } +/** Mint one production-shaped agent scope that can register scoped tool policy. */ +async function mintAgentScope(ctx: Context, name = 'scoped'): Promise<{ scope: Scope; agent: Agent }> { + const agent = { id: AgentId(name) } as Agent + let scope!: Scope + await ctx.plugin(Object.assign((inner: Context) => { scope = createScope(inner, agent) }, + { inject: ['tools', 'systemPrompt'] })) + return { scope, agent } +} + /** Register a trivial echo tool; returns the calls it received. */ function registerEcho(ctx: Context, name = 'echo'): unknown[] { const calls: unknown[] = [] @@ -119,6 +131,100 @@ describe('mode-aware wire contribution', () => { expect(assembly.sections.some(section => section.name === 'tools:sdk')).toBe(true) }) + it.each(['code', 'both'] as const)('keeps the run_code transport outside scoped allow-list filtering in mode %s', async (mode) => { + const { ctx, systemPrompt, runtime } = await setup({ mode }) + registerEcho(ctx, 'echo') + registerEcho(ctx, 'hidden') + const { scope, agent } = await mintAgentScope(ctx) + const lift = scope.ctx.tools.restrict({ allow: ['echo'] }) + + const assembly = await systemPrompt.assemble({ scope: agent }) + expect(assembly.tools.map(tool => tool.name)).toEqual(mode === 'code' + ? [RUN_CODE_NAME] + : ['echo', RUN_CODE_NAME]) + const sdk = assembly.sections.find(section => section.name === 'tools:sdk')?.text + expect(sdk).toContain('echo(args:') + expect(sdk).not.toContain('hidden(args:') + + runtime.behavior = request => Promise.resolve({ + logs: [], + value: Object.keys(request.bindings[0]!.functions).sort().join(','), + }) + const result = await runCode(ctx, 'return Object.keys(tools)', { agent }) + expect(result.isError).toBe(false) + expect(result.content).toEqual([{ type: 'text', text: 'echo' }]) + + await lift() + const unrestricted = await systemPrompt.assemble({ scope: agent }) + expect(unrestricted.tools.map(tool => tool.name)).toEqual(mode === 'code' + ? [RUN_CODE_NAME] + : ['echo', 'hidden', RUN_CODE_NAME]) + }) + + it.each(['code', 'both'] as const)('keeps the run_code transport outside scoped deny-list filtering in mode %s', async (mode) => { + const { ctx, systemPrompt, runtime } = await setup({ mode }) + registerEcho(ctx, 'denied') + registerEcho(ctx, 'kept') + const { scope, agent } = await mintAgentScope(ctx) + scope.ctx.tools.restrict({ deny: ['denied'] }) + + const assembly = await systemPrompt.assemble({ scope: agent }) + expect(assembly.tools.map(tool => tool.name)).toEqual(mode === 'code' + ? [RUN_CODE_NAME] + : ['kept', RUN_CODE_NAME]) + const sdk = assembly.sections.find(section => section.name === 'tools:sdk')?.text + expect(sdk).not.toContain('denied(args:') + expect(sdk).toContain('kept(args:') + + runtime.behavior = request => Promise.resolve({ + logs: [], + value: Object.keys(request.bindings[0]!.functions).sort().join(','), + }) + const result = await runCode(ctx, 'return Object.keys(tools)', { agent }) + expect(result.isError).toBe(false) + expect(result.content).toEqual([{ type: 'text', text: 'kept' }]) + }) + + it.each(['code', 'both'] as const)('reserves run_code against scoped shadows and explicit restrictions in mode %s', async (mode) => { + const { ctx, systemPrompt } = await setup({ mode }) + const { scope, agent } = await mintAgentScope(ctx) + const impostor = defineTool({ + name: RUN_CODE_NAME, + description: 'Scoped impostor.', + parameters: {}, + execute: () => Promise.resolve([{ type: 'text' as const, text: 'impostor' }]), + }) + + expect(() => scope.ctx.tools.register(impostor)).toThrow(/reserved for the Code Mode presentation transport/) + expect(() => ctx.tools.register(impostor)).toThrow(/reserved for the Code Mode presentation transport/) + expect(() => scope.ctx.tools.restrict({ allow: [RUN_CODE_NAME] })).toThrow(/cannot name reserved Code Mode presentation transport/) + expect(() => scope.ctx.tools.restrict({ deny: [RUN_CODE_NAME] })).toThrow(/cannot name reserved Code Mode presentation transport/) + + const assembly = await systemPrompt.assemble({ scope: agent }) + const transports = assembly.tools.filter(tool => tool.name === RUN_CODE_NAME) + expect(transports).toHaveLength(1) + expect(transports[0]?.description).toContain('Execute a TypeScript program') + expect(ctx.tools.get(RUN_CODE_NAME, agent)).toBe(ctx.tools.get(RUN_CODE_NAME)) + expect(ctx.tools.knownNames(agent)).not.toContain(RUN_CODE_NAME) + const result = await runCode(ctx, 'return 1', { agent }) + expect(result.content).toEqual([{ type: 'text', text: '(run_code completed with no output)' }]) + }) + + it.each(['code', 'both'] as const)('keeps run_code in the toolOrder universe without exposing it as a restriction target in mode %s', async (mode) => { + const { ctx, systemPrompt } = await setup({ + mode, + toolOrder: [RUN_CODE_NAME, ''], + }) + registerEcho(ctx) + const { agent } = await mintAgentScope(ctx) + + expect(ctx.tools.knownNames(agent)).toEqual(['echo']) + const assembly = await systemPrompt.assemble({ scope: agent }) + expect(assembly.tools.map(tool => tool.name)).toEqual(mode === 'code' + ? [RUN_CODE_NAME] + : [RUN_CODE_NAME, 'echo']) + }) + it("never exposes run_code to programs, even under mode 'both' (no recursive dispatch path)", async () => { const { ctx, runtime } = await setup({ mode: 'both' }) registerEcho(ctx) From b29a8eca71007369699599d6cbe45393fc9393a1 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 21:37:38 +0800 Subject: [PATCH 185/232] fix(review): reconcile sandbox and approval contracts --- AGENTS.md | 2 +- docs/capability-seams.md | 2 +- docs/config-catalog.md | 79 +++++++++-------- docs/cordis-catalog/events.md | 4 +- docs/cordis-catalog/services.md | 8 +- docs/core-data-structures/approval.md | 64 ++++++++++++++ docs/core-data-structures/bash.md | 10 +-- docs/core-data-structures/core.md | 2 + docs/core-data-structures/sandbox.md | 82 ++++++++++++++++++ docs/event-producer-consumer.md | 4 +- docs/module-graph.md | 28 +++---- docs/persistence-catalog.md | 6 +- docs/rfc/INDEX.md | 4 +- .../2026-06-14-session-persistence.md | 4 +- .../2026-06-14-acp-agent-client-protocol.md | 57 +++++++++++++ .../feature/2026-06-14-acp-multi-session.md | 37 ++++++++ ...6-06-18-acp-terminal-and-tool-rendering.md | 2 +- .../feature/2026-07-06-approval-seam.md | 16 ++-- .../implemented/feature/2026-07-06-sandbox.md | 4 +- .../2026-06-14-acp-agent-client-protocol.md | 84 ------------------- .../feature/2026-06-14-acp-multi-session.md | 48 ----------- .../2026-06-20-single-session-acp-bridge.md | 4 +- examples/README.md | 2 +- examples/sandbox-acp-agent/README.md | 2 +- examples/sandbox-acp-agent/cordis.yml | 2 +- .../snapshots/mode-switching/session.jsonl | 6 +- packages/README.md | 3 +- packages/approval/README.md | 9 -- packages/bash/bash-sandbox/src/index.ts | 21 ++--- packages/bash/bash/src/index.ts | 11 +-- packages/bash/tool-bash/README.md | 2 +- packages/bash/tool-bash/package.json | 4 +- packages/bash/tool-bash/src/index.ts | 21 +++-- packages/bash/tool-bash/tests/tools.spec.ts | 38 +++++++-- packages/bash/tool-bash/tsconfig.json | 2 +- packages/core/tools/README.md | 2 +- packages/core/tools/package.json | 4 +- packages/core/tools/src/index.ts | 2 +- packages/core/tools/tests/tools.spec.ts | 2 +- packages/core/tools/tsconfig.json | 2 +- packages/sandbox/sandbox-local/src/index.ts | 45 +++++++--- .../sandbox/sandbox-local/tests/local.spec.ts | 24 +++++- packages/ui/README.md | 3 +- packages/ui/acp/README.md | 8 +- packages/ui/acp/acp-feature-support.md | 8 +- packages/ui/acp/package.json | 4 +- packages/ui/acp/src/index.ts | 8 +- packages/ui/acp/tests/approval.spec.ts | 2 +- packages/ui/acp/tests/config-options.spec.ts | 4 +- packages/ui/acp/tsconfig.json | 2 +- .../approval => ui/user-approval}/README.md | 6 +- .../user-approval}/package.json | 4 +- .../user-approval}/src/index.ts | 66 +++++++++------ .../user-approval}/tests/approval.spec.ts | 71 ++++++++++++++-- .../user-approval}/tsconfig.json | 0 pnpm-lock.yaml | 14 ++-- scripts/gen-cordis-catalog.ts | 6 ++ scripts/type-equiv.manifest.json | 12 ++- tsconfig.base.json | 1 - tsconfig.build.json | 2 +- tsconfig.json | 2 +- 61 files changed, 620 insertions(+), 358 deletions(-) create mode 100644 docs/core-data-structures/approval.md create mode 100644 docs/core-data-structures/sandbox.md create mode 100644 docs/rfc/implemented/feature/2026-06-14-acp-agent-client-protocol.md create mode 100644 docs/rfc/implemented/feature/2026-06-14-acp-multi-session.md delete mode 100644 docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md delete mode 100644 docs/rfc/proposed/feature/2026-06-14-acp-multi-session.md delete mode 100644 packages/approval/README.md rename packages/{approval/approval => ui/user-approval}/README.md (58%) rename packages/{approval/approval => ui/user-approval}/package.json (80%) rename packages/{approval/approval => ui/user-approval}/src/index.ts (88%) rename packages/{approval/approval => ui/user-approval}/tests/approval.spec.ts (84%) rename packages/{approval/approval => ui/user-approval}/tsconfig.json (100%) diff --git a/AGENTS.md b/AGENTS.md index 20abf56c87..e19e2cfbc4 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -24,7 +24,7 @@ packages/ Harness packages at packages///, all named @deepseek-ai cordis/ self-referential toolset: the agent inspects/mounts plugins in its own runtime hooks/ Claude Code / Codex hook bridges + shared wire-protocol library session-persistence/ persistence seam + JSONL/SQLite backends - ui/ ACP bridge, app-boot glue, stdio/ACP app bins, user-interaction seam, ask-user tool + ui/ ACP bridge, app-boot glue, stdio/ACP app bins, user-approval and user-interaction seams, ask-user tool support/ dev/test infrastructure packages util/ zero-dependency utilities examples/ Runnable demos: thin cordis.yml leaves over the app packages (see examples/AGENTS.md) diff --git a/docs/capability-seams.md b/docs/capability-seams.md index 7b3b7aca20..520ceaab9d 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -175,7 +175,7 @@ flowchart LR | `ctx.agentLoop` | `bundle` | [`agent-loop`](../packages/core/agent-loop) | - | [`agent-core`](../packages/core/agent-core) | - | The one concrete loop plugin; extension packages depend on dsh-agent events and services, not on this package. | | `ctx.bash` | `seam` | [`bash`](../packages/bash/bash) | [`bash-local`](../packages/bash/bash-local), [`bash-sandbox`](../packages/bash/bash-sandbox) | [`tool-bash`](../packages/bash/tool-bash), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | - | The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors replace bash-local without touching them. | | `ctx.sandbox` | `seam` | [`sandbox`](../packages/sandbox/sandbox) | [`sandbox-local`](../packages/sandbox/sandbox-local) | [`bash-sandbox`](../packages/bash/bash-sandbox) | - | Consumers hand over the exact argv they are about to spawn; same-world backends wrap it under a per-call policy and report enforcement. | -| `ctx.approval` | `seam` | [`approval`](../packages/approval/approval) | [`acp`](../packages/ui/acp) | [`tools`](../packages/core/tools), [`tool-bash`](../packages/bash/tool-bash) | - | One-shot permission decisions dispatched over the `approval/request` waterfall; answerers are listeners (the ACP bridge for its own agents), absence fails closed to `unavailable`. | +| `ctx.approval` | `seam` | `approval` | [`acp`](../packages/ui/acp) | [`tools`](../packages/core/tools), [`tool-bash`](../packages/bash/tool-bash) | - | One-shot permission decisions dispatched over the `approval/request` waterfall; answerers are listeners (the ACP bridge for its own agents), absence fails closed to `unavailable`. | | `ctx.codeRuntime` | `seam` | [`code-runtime`](../packages/code-runtime/code-runtime) | [`code-runtime-worker`](../packages/code-runtime/code-runtime-worker) | [`tools`](../packages/core/tools) | - | Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the tool registry consumes it for Code Mode). | | `ctx.fs` | `seam` | [`fs`](../packages/fs/fs) | [`fs-local`](../packages/fs/fs-local) | [`tool-fs`](../packages/fs/tool-fs) | [`fs-policy`](../packages/fs/fs-policy) | tool-fs executes read/write/edit through ctx.fs; fs-policy contributes observed-state checks through the fs/* event gate. | | `ctx.compact` | `seam` | [`compact`](../packages/compact/compact) | [`compact-basic`](../packages/compact/compact-basic) | [`compact-basic`](../packages/compact/compact-basic) | - | The basic backend currently consumes the pre-step event directly; a model-facing compact tool remains deferred. | diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 94c4ef8851..46aa0ea5d6 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -130,37 +130,6 @@ Depends on: [`AgentId`](../packages/core/agent/src/index.ts) · [`AgentOptions`] Source: [`packages/core/agent-loop/src/index.ts:36`](../packages/core/agent-loop/src/index.ts) -## `@deepseek-ai/dsh-approval` - -```ts config-catalog -/** Plugin config. All optional — `static Config` supplies the defaults. */ -export interface Config { - /** - * The deployment's default {@link ApprovalPolicy} for sessions without an - * `approval/policy` override — `'ask'` delegates to the composed answerers - * (fail-closed with none); `'never'` auto-rejects every ask without - * prompting (the deterministic CI/unattended stance). - */ - policy?: ApprovalPolicy -} - -/** - * A session's approval policy — what happens to an {@link ApprovalService} - * ask BEFORE any interactive answerer sees it: - * - * - `'ask'` (the default) — delegate to the composed answerers; with none - * composed the chain falls through to the fail-closed `'unavailable'` - * (exactly today's behavior). - * - `'never'` — never prompt anyone: every ask resolves `'rejected'` - * deterministically. The strict headless stance (CI, unattended runs) and - * the only policy value stated in the system prompt — unlike `'ask'`, its - * outcome is knowable without asking, so stating it cannot overclaim. - */ -export type ApprovalPolicy = 'ask' | 'never' -``` - -Source: [`packages/approval/approval/src/index.ts:244`](../packages/approval/approval/src/index.ts) - ## `@deepseek-ai/dsh-bash-local` ```ts config-catalog @@ -204,9 +173,9 @@ export interface Config extends LocalConfig { } ``` -Depends on: [`LocalConfig`](#deepseek-aidsh-bash-local) · [`SandboxMode`](../packages/sandbox/sandbox/src/index.ts) +Depends on: [`LocalConfig`](#deepseek-aidsh-bash-local) · [`SandboxMode`](core-data-structures/sandbox.md) -Source: [`packages/bash/bash-sandbox/src/index.ts:59`](../packages/bash/bash-sandbox/src/index.ts) +Source: [`packages/bash/bash-sandbox/src/index.ts:60`](../packages/bash/bash-sandbox/src/index.ts) ## `@deepseek-ai/dsh-code-runtime-worker` @@ -500,7 +469,9 @@ export interface Config { * `enforcement: 'full'`, and — the runner's kernel mechanism being unknown * — carries both Linux file-denial dialects as its denial signatures) — * the runner chain and its probes are skipped, - * and a broken runner fails loudly at spawn time like any missing command. + * and a broken runner fails loudly at execution time. The operator also + * supplies {@link runnerFailureSignatures}, which distinguish the runner + * refusing its profile from the wrapped command failing normally. * Absent (or empty — the schema normalizes an omitted array to `[]`): the * built-in platform chains — Linux `bwrap` then the Landlock launcher * (probed in that order), darwin `sandbox-exec` (the sole candidate, @@ -508,6 +479,15 @@ export interface Config { * for deterministic fake runners in keyless test tiers. */ runnerCommand?: string[] + /** + * Case-insensitive stderr substrings emitted when a configured + * {@link runnerCommand} refuses its profile before executing the wrapped + * command. Required and non-empty with `runnerCommand`; rejected without + * it. Missing/unexecutable runner errors are added automatically from + * `runnerCommand[0]`, while these signatures cover an executable runner's + * own failure dialect. + */ + runnerFailureSignatures?: string[] /** * Per-probe timeout in milliseconds for the chain's functional probes * (default: 5000; must be a positive finite number — Node treats a 0 @@ -914,6 +894,37 @@ export type ToolPresentationMode = 'native' | 'code' | 'both' Source: [`packages/core/tools/src/index.ts:323`](../packages/core/tools/src/index.ts) +## `@deepseek-ai/dsh-user-approval` + +```ts config-catalog +/** Plugin config. All optional — `static Config` supplies the defaults. */ +export interface Config { + /** + * The deployment's default {@link ApprovalPolicy} for sessions without an + * `approval/policy` override — `'ask'` delegates to the composed answerers + * (fail-closed with none); `'never'` auto-rejects every ask without + * prompting (the deterministic CI/unattended stance). + */ + policy?: ApprovalPolicy +} + +/** + * A session's approval policy — what happens to an {@link ApprovalService} + * ask BEFORE any interactive answerer sees it: + * + * - `'ask'` (the default) — delegate to the composed answerers; with none + * composed the chain falls through to the fail-closed `'unavailable'` + * (exactly today's behavior). + * - `'never'` — never prompt anyone: every ask resolves `'rejected'` + * deterministically. The strict headless stance (CI, unattended runs) and + * the only policy value stated in the system prompt — unlike `'ask'`, its + * outcome is knowable without asking, so stating it cannot overclaim. + */ +export type ApprovalPolicy = 'ask' | 'never' +``` + +Source: [`packages/ui/user-approval/src/index.ts:258`](../packages/ui/user-approval/src/index.ts) + ## `@deepseek-ai/dsh-web` ```ts config-catalog diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 2f89dd481b..f7101cc862 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -173,7 +173,9 @@ Waterfall asking the composed answerers to decide one approval request. Dispatch 'approval/request'(this: ApprovalService, req: ApprovalRequest, next: () => Promise): Promise ``` -Source: [`packages/approval/approval/src/index.ts:64`](../../packages/approval/approval/src/index.ts) +Types: [ApprovalOutcome](../core-data-structures/approval.md) · [ApprovalRequest](../core-data-structures/approval.md) + +Source: [`packages/ui/user-approval/src/index.ts:64`](../../packages/ui/user-approval/src/index.ts) ## `fs/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 0793f77a2a..5428e8d103 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -44,13 +44,15 @@ Source: [`packages/core/agent/src/index.ts:117`](../../packages/core/agent/src/i The `ctx.approval` service: dispatches ApprovalRequests to the `approval/request` waterfall and audits every ask/outcome pair to the requesting agent's session log. Stateless between requests — grants are returned to the caller, never stored here. -Owns the policy tier too (`effective = fold(the session's 'approval/policy' events) ?? config.policy`): a PREPENDED decide-or-delegate gate resolves `'never'` sessions to `'rejected'` before any interactive answerer is prompted, a per-agent prompt section states a `'never'` policy (and only that one — an `'ask'` promise could overclaim an answerer that headless compositions do not have), and an `agent/pre-step` narrator injects at most one coalesced notice when a session's effective policy moved past what the model was last told. +Owns the policy tier too (`effective = fold(the session's 'approval/policy' events) ?? config.policy`): `request()` resolves `'never'` to `'rejected'` before dispatching any interactive answerer, a per-agent prompt section states a `'never'` policy (and only that one in prose — an `'ask'` promise could overclaim an answerer that headless compositions do not have), and an `agent/pre-step` narrator injects at most one coalesced notice when a session's effective policy moved past what the model was last told. ```ts cordis-catalog async request(req: ApprovalRequest): Promise ``` -Source: [`packages/approval/approval/src/index.ts:269`](../../packages/approval/approval/src/index.ts) +Types: [ApprovalOutcome](../core-data-structures/approval.md) · [ApprovalRequest](../core-data-structures/approval.md) + +Source: [`packages/ui/user-approval/src/index.ts:282`](../../packages/ui/user-approval/src/index.ts) ## `ctx.bash` — `BashExecutor` (abstract seam) @@ -173,6 +175,8 @@ Semantics every implementation must honor: abstract confine(argv: readonly string[], policy: SandboxPolicy): ConfinedArgv ``` +Types: [ConfinedArgv](../core-data-structures/sandbox.md) · [SandboxPolicy](../core-data-structures/sandbox.md) + Source: [`packages/sandbox/sandbox/src/index.ts:180`](../../packages/sandbox/sandbox/src/index.ts) ## `ctx.sessionPersistence` — `SessionPersistence` (abstract seam) diff --git a/docs/core-data-structures/approval.md b/docs/core-data-structures/approval.md new file mode 100644 index 0000000000..997f4e7ab2 --- /dev/null +++ b/docs/core-data-structures/approval.md @@ -0,0 +1,64 @@ +# User Approval + +The user-approval seam of [dsh-user-approval](../../packages/ui/user-approval) answers one question: may this specific action proceed? It owns the shared request/outcome vocabulary, the `ctx.approval` dispatch service, the `approval/request` answerer waterfall, the log-only audit pair, and the per-session `ask`/`never` policy. UI channels such as [dsh-acp](../../packages/ui/acp) provide answerers; callers such as [dsh-tools](../../packages/core/tools) and [dsh-tool-bash](../../packages/bash/tool-bash) consume the closed outcome and fail closed unless it is `allowed-once`. + +Source: [`packages/ui/user-approval/src/index.ts`](../../packages/ui/user-approval/src/index.ts) + +## Identity and outcome + +Every request receives a fresh `ApprovalRequestId`. The brand pairs the `approval/asked` and `approval/decided` audit events without making approval ids interchangeable with tool-call, session, or agent ids. + +```ts type-equiv +type ApprovalRequestId = Branded<'ApprovalRequestId'> +``` + +`ApprovalOutcome` is closed and fail-closed. `allowed-once` grants only the asked-about action; callers deny on `rejected`, `cancelled`, and `unavailable`. A missing, non-owning, throwing, or non-conforming answerer becomes `unavailable` rather than opening the gate. + +```ts type-equiv +type ApprovalOutcome = 'allowed-once' | 'rejected' | 'cancelled' | 'unavailable' +``` + +## Per-session policy + +`ApprovalPolicy` determines what happens before interactive answerers run. `ask` delegates to the composed answerer chain, whose no-answer default is `unavailable`; `never` deterministically returns `rejected` without dispatching any answerer. The effective value is the last `approval/policy` event in the session log, falling back to the service config. `setApprovalPolicy(session, policy)` is the single write path, so replay reconstructs the override. + +```ts type-equiv +type ApprovalPolicy = 'ask' | 'never' +``` + +The prompt section states the deterministic `never` behavior and records either policy with a source-owned marker. The pre-step narrator reads that marker from the logged request header after restart; it does not infer state from deployment persona prose. An idle ACP switch is held in the bridge until the next `turn/start`, because approval audit and policy events must remain turn-enclosed for durable replay. + +## Approval request + +`ApprovalRequest` identifies the agent and tool action closely enough to route and audit the question. It deliberately omits tool arguments: an answerer attaches the prompt to the already-streamed tool call through `callId` instead of rendering a second copy that could drift. + +```ts type-equiv +interface ApprovalRequest { + /** + * The agent on whose behalf the question is asked. Routes the question (a + * UI answerer only answers for agents it owns) and receives the audit + * events on its session log. + */ + agent: Agent + /** The tool the question is about (presentation and audit). */ + toolName: string + /** + * The exact tool call being decided, when the asker has one — lets a UI + * attach the prompt to the tool call it already streamed. + */ + callId?: CallId + /** The asker's human-readable explanation of WHY it is asking. */ + reason?: string + /** + * Aborting withdraws the question: the request settles `'cancelled'` + * immediately and a late answer from a still-pending answerer is discarded. + */ + signal?: AbortSignal +} +``` + +## Dispatch and audit + +`ctx.approval.request(req)` requires the requesting session to be inside an open turn. It appends `approval/asked`, obtains one outcome, appends the matching `approval/decided`, and resolves with that outcome. The `never` policy is enforced inside the service before waterfall dispatch, so even an answerer registered later with `prepend` cannot bypass it. Answerers return an outcome when they own the request or call `next()` to delegate; the first answer occupies the single decision slot. + +The audit events are log-only and do not enter the model transcript. Model-visible behavior is the caller's derived tool result, while the request header records the prompt policy that the model actually saw. Service disposal removes its prompt section and pre-step narrator together; answerer listeners are independently effect-bound to their owning plugins. diff --git a/docs/core-data-structures/bash.md b/docs/core-data-structures/bash.md index c131926741..51f7cb0696 100644 --- a/docs/core-data-structures/bash.md +++ b/docs/core-data-structures/bash.md @@ -152,13 +152,9 @@ interface CollectedOutput { } ``` -## File sandbox: `SandboxMode` / `BashSandboxInfo` +## File sandbox: `BashSandboxInfo` -A sandbox-consuming executor (`dsh-bash-sandbox`) confines commands under its executor-configured mode — fixed at config time for the executor's lifetime; a runtime/per-session mode surface is the sandbox RFC's config phase, not current behavior; the mode/enforcement vocabulary is owned by the `@deepseek-ai/dsh-sandbox` seam (whose provider wraps the executor's argv), and the mode governs FILE effects only — network and process visibility are deliberately not restricted, because a backend that cannot honestly enforce them must not pretend to: - -```ts type-equiv -type SandboxMode = 'read-only' | 'workspace-write' | 'danger-full-access' -``` +A sandbox-consuming executor (`dsh-bash-sandbox`) exposes its configured fallback through `BashExecutor.sandboxMode`. The tool layer folds each agent session's durable `bash/sandbox-mode` override, stamps the effective mode onto the request, states it in the per-agent prompt, and may replace it for one user-approved strictly wider call. The mode/enforcement vocabulary is owned and cataloged by the [`@deepseek-ai/dsh-sandbox` seam](sandbox.md), whose provider wraps the executor's argv; modes govern FILE effects only, not network or process visibility. A sandboxed run always reports the facts it executed under on `BashRunResult.sandbox`: `denied` is the executor's conservative classification of a failure as sandbox-caused (a failed exit whose stderr carries a filesystem-permission signature — never a clean exit or a signal kill), read from the collected stderr tail; `enforcement` reports how completely the selected backend governs the mode's file effects (`SandboxEnforcement = 'full' | 'partial'` — `partial` when an older Landlock ABI governs only a subset of the requested accesses; absent under `danger-full-access`, where nothing is confined); `runnerFailed` marks the opposite of a denial — the sandbox RUNNER itself failed and the command never ran (stamped only on settled background tasks; a foreground run surfaces the same condition as the thrown `SANDBOX_UNAVAILABLE` error): @@ -197,7 +193,7 @@ interface BashSandboxInfo { } ``` -One more piece completes the vocabulary: the `SANDBOX_UNAVAILABLE` error code (owned by the sandbox seam) is what the `ctx.sandbox` provider throws — and the executor propagates — when a confined mode has no usable backend: sandboxed modes fail CLOSED instead of silently running unconfined. The model's view of the sandbox is result facts only: the static bash tool description explains the denial marker, and each run's `result.sandbox` carries the mode it executed under (no live-mode getter on the seam and no current-mode prompt statement — both arrive with the runtime-context phase of the RFC below). Denials are deny-only result facts today; the approval/escalated-retry flow on top of them is the [sandbox RFC](../rfc/implemented/feature/2026-07-06-sandbox.md). +One more piece completes the vocabulary: the `SANDBOX_UNAVAILABLE` error code (owned by the [sandbox seam](sandbox.md)) is what the `ctx.sandbox` provider throws — and the executor propagates — when a confined mode has no usable backend. A selected runner refusing its profile reaches the same fail-closed foreground error; a settled background task records `runnerFailed`. The model sees the current effective mode in the prompt, receives denial/runner facts in results, and can request a one-shot strictly wider retry through `sandbox_permissions` plus `justification`; `ctx.approval` must grant that exact call before anything executes. The complete policy and switching design is the [sandbox RFC](../rfc/implemented/feature/2026-07-06-sandbox.md). ## Background tasks: `BashTask` diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index 9611adab6f..ba2003bfc5 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -20,7 +20,9 @@ Everything else is documented on a **sub-page**, not here. The rule that draws t | [persistence.md](persistence.md) | the durability seam: `SessionPersistence`, JSONL + SQLite backends, `session/flush`, crash recovery, `SessionHeader` | | [tools.md](tools.md) | `ToolDefinition` full fields, the schema DSL, `ToolExecution`/`ToolResult`, tool-presentation UI types, the `tools/pre-execute`/`tools/post-execute` pipeline | | [user-interaction.md](user-interaction.md) | the UI-backed human question/answer seam: `AskUserQuestionRequest`, answer/options vocabulary, provider API, error taxonomy | +| [approval.md](approval.md) | the one-shot user-approval seam: `ApprovalRequest`, `ApprovalOutcome`, per-session policy, audit and answerer contracts | | [bash.md](bash.md) | the bash executor seam: `BashExecRequest`/`Spec`, `BashRunResult`, background `BashTask`s | +| [sandbox.md](sandbox.md) | the process-confinement seam: file-effect modes, `SandboxPolicy`, `ConfinedArgv`, enforcement and fail-closed errors | | [code-runtime.md](code-runtime.md) | the code-execution seam: `CodeRunRequest`/`Result`, binding namespaces, captured logs, the `CodeRunFailure` taxonomy | | [filesystem.md](filesystem.md) | the filesystem seam: `FsTarget`, read/write/edit outcomes, observed-file state, `FsErrorCode` | | [compaction.md](compaction.md) | the compaction seam: the `compact/*` session events, `CompactionResult`, the `CompactService` interface | diff --git a/docs/core-data-structures/sandbox.md b/docs/core-data-structures/sandbox.md new file mode 100644 index 0000000000..6b7b212373 --- /dev/null +++ b/docs/core-data-structures/sandbox.md @@ -0,0 +1,82 @@ +# Process Sandbox + +The process-sandbox seam of [dsh-sandbox](../../packages/sandbox/sandbox) wraps a same-world subprocess argv in a file-effect policy without coupling consumers to a platform runner. [dsh-sandbox-local](../../packages/sandbox/sandbox-local) supplies the Linux bwrap/Landlock and macOS Seatbelt backends; [dsh-bash-sandbox](../../packages/bash/bash-sandbox) is the first consumer. Containers, microVMs, and remote execution are sibling implementations of whole capability seams, not providers of `ctx.sandbox`. + +Source: [`packages/sandbox/sandbox/src/index.ts`](../../packages/sandbox/sandbox/src/index.ts) + +## Modes and enforcement + +`SandboxMode` governs filesystem effects only. `read-only` denies writes except the required `/dev/null` sink; `workspace-write` permits writes under the workspace root and the backend's promised temp area; `danger-full-access` bypasses confinement. Network and process visibility are outside this vocabulary. + +```ts type-equiv +type SandboxMode = 'read-only' | 'workspace-write' | 'danger-full-access' +``` + +Only the first two modes can be sent to a provider. A `danger-full-access` consumer spawns its original argv and does not call `ctx.sandbox`. + +```ts type-equiv +type ConfinedSandboxMode = Exclude +``` + +Enforcement is a reported fact. `full` means the backend governs every file effect promised by the mode; `partial` means an active backend or older kernel ABI governs only a subset, so consumers that require the absolute promise must reject or surface that distinction. + +```ts type-equiv +type SandboxEnforcement = 'full' | 'partial' +``` + +## Per-call policy + +The policy is fully resolved and carried per call. This permits concurrent consumers and one-shot escalated retries to ask the same provider for different boundaries without mutating provider state. + +```ts type-equiv +interface SandboxPolicy { + /** The file-effect mode this execution runs under. */ + mode: ConfinedSandboxMode + /** Absolute root directory `workspace-write` may write under. */ + workspaceRoot: string +} +``` + +## Wrapped argv and classification dialects + +`ConfinedArgv` is what the consumer spawns. Besides the replacement argv, it carries the backend's enforcement fact and two orthogonal stderr dialects. `denialSignatures` identify the confined command being blocked while the sandbox works correctly. `runnerFailureSignatures` identify the sandbox runner refusing or failing before it executes the command; consumers check these first and surface a sandbox infrastructure failure, never an ordinary task failure. + +```ts type-equiv +interface ConfinedArgv { + /** The wrapped argv (runner, profile, separator, then the caller's argv). */ + argv: string[] + /** How completely the selected backend enforces the policy's file effects. */ + enforcement: SandboxEnforcement + /** + * The selected backend's denial DIALECT: the case-insensitive stderr + * substrings a file effect denied by THIS backend produces (EROFS text + * under bwrap's read-only binds, EACCES under Landlock, EPERM under + * Seatbelt). A consumer that infers denials from a failed run's stderr + * matches against exactly these rather than a cross-backend union — the + * union claims denials a given backend never produces. + */ + denialSignatures: readonly string[] + /** + * How the RUNNER ITSELF failing identifies itself: case-insensitive stderr + * substrings produced when the sandbox binary is missing, refuses its + * profile, or fails closed before exec'ing the command (`bwrap: `, + * `landlock-run: `, `sandbox-exec: ` — each covers both the runner's own + * error prefix and the shell's runner-not-found message). ORTHOGONAL to + * {@link denialSignatures}: a denial is the confined COMMAND being blocked + * (the sandbox working as designed); a runner failure means the command + * NEVER RAN and must surface as a sandbox failure, not a task failure — + * consumers check these signatures FIRST (a runner's own error text may + * contain denial words, e.g. an unopenable grant root reporting + * `Permission denied`). + */ + runnerFailureSignatures: readonly string[] +} +``` + +An operator-configured local runner must supply at least one `runnerFailureSignatures` entry for its own pre-exec refusal dialect; the provider adds outer-shell missing and unexecutable forms automatically. This makes an executable custom runner rejecting its profile distinguishable from the wrapped command exiting with the same status. + +## Provider and fail-closed errors + +`ctx.sandbox.confine(argv, policy)` returns a `ConfinedArgv` or throws `SandboxUnavailableError` with code `SANDBOX_UNAVAILABLE` when no usable backend exists. A selected runner can also fail closed at execution time, in which case its failure signature carries the same infrastructure meaning. Silent unconfined passthrough is never legal for a confined policy. + +Provider probing arbitrates between multiple candidates and is cached for the provider lifetime. A platform with one candidate may select it directly; execution-time refusal retains the safety property. The local provider reports bwrap and Seatbelt as full and preserves the Landlock launcher's full/partial kernel verdict. diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 2f9e569950..f6d7e8d923 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -10,7 +10,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `agent/created` | `emit` | [`packages/core/agent/src/types.ts:265`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:272`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/error` | `emit` | [`packages/core/agent/src/types.ts:476`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:357`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`approval`](../packages/approval/approval), [`compact-basic`](../packages/compact/compact-basic) | +| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:357`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic), [`user-approval`](../packages/ui/user-approval) | | `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:370`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | | `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:290`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | | `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:394`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | @@ -19,7 +19,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `agent/status` | `emit` | [`packages/core/agent/src/types.ts:281`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:451`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | | `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:464`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `approval/request` | `waterfall` | [`packages/approval/approval/src/index.ts:64`](../packages/approval/approval/src/index.ts) | [`approval`](../packages/approval/approval) (`waterfall`) | [`acp`](../packages/ui/acp) | +| `approval/request` | `waterfall` | [`packages/ui/user-approval/src/index.ts:64`](../packages/ui/user-approval/src/index.ts) | [`user-approval`](../packages/ui/user-approval) (`waterfall`) | [`acp`](../packages/ui/acp) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | diff --git a/docs/module-graph.md b/docs/module-graph.md index 015f22677a..064a154f2e 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -87,11 +87,9 @@ flowchart TD pkg_app_boot["app-boot"] pkg_stdio_agent["stdio-agent"] pkg_tool_ask_user["tool-ask-user"] + pkg_user_approval["user-approval"] pkg_user_interaction["user-interaction"] end - subgraph group_approval["packages/approval"] - pkg_approval["approval"] - end subgraph group_code_runtime["packages/code-runtime"] pkg_code_runtime["code-runtime"] pkg_code_runtime_worker["code-runtime-worker"] @@ -155,22 +153,22 @@ flowchart TD pkg_invariants --> pkg_agent pkg_invariants --> pkg_llm pkg_invariants --> pkg_session + pkg_user_approval --> pkg_agent + pkg_user_approval --> pkg_brand + pkg_user_approval --> pkg_llm + pkg_user_approval --> pkg_session + pkg_user_approval --> pkg_system_prompt pkg_user_interaction --> pkg_agent pkg_user_interaction --> pkg_llm - pkg_approval --> pkg_agent - pkg_approval --> pkg_brand - pkg_approval --> pkg_llm - pkg_approval --> pkg_session - pkg_approval --> pkg_system_prompt pkg_workflow --> pkg_agent pkg_workflow --> pkg_brand pkg_workflow --> pkg_llm pkg_tools --> pkg_agent - pkg_tools --> pkg_approval pkg_tools --> pkg_code_runtime pkg_tools --> pkg_llm pkg_tools --> pkg_session pkg_tools --> pkg_system_prompt + pkg_tools --> pkg_user_approval pkg_bash_sandbox --> pkg_bash pkg_bash_sandbox --> pkg_bash_local pkg_bash_sandbox --> pkg_sandbox @@ -181,12 +179,12 @@ flowchart TD pkg_agent_loop --> pkg_system_prompt pkg_agent_loop --> pkg_tools pkg_tool_bash --> pkg_agent - pkg_tool_bash --> pkg_approval pkg_tool_bash --> pkg_bash pkg_tool_bash --> pkg_llm pkg_tool_bash --> pkg_sandbox pkg_tool_bash --> pkg_system_prompt pkg_tool_bash --> pkg_tools + pkg_tool_bash --> pkg_user_approval pkg_tool_fs --> pkg_fs pkg_tool_fs --> pkg_llm pkg_tool_fs --> pkg_session @@ -212,13 +210,13 @@ flowchart TD pkg_hooks_codex --> pkg_session pkg_hooks_codex --> pkg_tools pkg_acp --> pkg_agent - pkg_acp --> pkg_approval pkg_acp --> pkg_bash pkg_acp --> pkg_llm pkg_acp --> pkg_sandbox pkg_acp --> pkg_session pkg_acp --> pkg_session_persistence pkg_acp --> pkg_tools + pkg_acp --> pkg_user_approval pkg_acp --> pkg_user_interaction pkg_tool_ask_user --> pkg_agent pkg_tool_ask_user --> pkg_tools @@ -323,13 +321,13 @@ flowchart TD | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`invariants`](../packages/support/invariants) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | +| [`user-approval`](../packages/ui/user-approval) | `ui` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`user-interaction`](../packages/ui/user-interaction) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm) | -| [`approval`](../packages/approval/approval) | `approval` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`workflow`](../packages/workflow/workflow) | `workflow` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | -| [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`approval`](../packages/approval/approval), [`code-runtime`](../packages/code-runtime/code-runtime), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | +| [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`code-runtime`](../packages/code-runtime/code-runtime), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`user-approval`](../packages/ui/user-approval) | | [`bash-sandbox`](../packages/bash/bash-sandbox) | `bash` | [`bash`](../packages/bash/bash), [`bash-local`](../packages/bash/bash-local), [`sandbox`](../packages/sandbox/sandbox) | | [`agent-loop`](../packages/core/agent-loop) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | -| [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`approval`](../packages/approval/approval), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | +| [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`user-approval`](../packages/ui/user-approval) | | [`tool-fs`](../packages/fs/tool-fs) | `fs` | [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`subagent`](../packages/subagent/subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`tools`](../packages/core/tools) | | [`tool-web`](../packages/web/tool-web) | `web` | [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`web`](../packages/web/web) | @@ -337,7 +335,7 @@ flowchart TD | [`tool-todo`](../packages/todo/tool-todo) | `todo` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`tool-cordis`](../packages/cordis/tool-cordis) | `cordis` | [`tools`](../packages/core/tools) | | [`hooks-codex`](../packages/hooks/hooks-codex) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | -| [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`approval`](../packages/approval/approval), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | +| [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools), [`user-approval`](../packages/ui/user-approval), [`user-interaction`](../packages/ui/user-interaction) | | [`tool-ask-user`](../packages/ui/tool-ask-user) | `ui` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | | [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | `guard` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools) | | [`tool-workflow`](../packages/workflow/tool-workflow) | `workflow` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`workflow`](../packages/workflow/workflow) | diff --git a/docs/persistence-catalog.md b/docs/persistence-catalog.md index 314ab82630..289b3c4755 100644 --- a/docs/persistence-catalog.md +++ b/docs/persistence-catalog.md @@ -23,7 +23,7 @@ An approval question was put to the answerer chain — log-only audit (like `hoo Types: [CallId](core-data-structures/core.md) -Source: [`packages/approval/approval/src/index.ts:78`](../packages/approval/approval/src/index.ts) +Source: [`packages/ui/user-approval/src/index.ts:78`](../packages/ui/user-approval/src/index.ts) #### `approval/decided` — log-only @@ -33,7 +33,7 @@ The outcome of a prior `approval/asked` (same `id`) — log-only audit. Exactly 'approval/decided': { id: ApprovalRequestId; outcome: ApprovalOutcome } ``` -Source: [`packages/approval/approval/src/index.ts:89`](../packages/approval/approval/src/index.ts) +Source: [`packages/ui/user-approval/src/index.ts:89`](../packages/ui/user-approval/src/index.ts) #### `approval/policy` — log-only @@ -43,7 +43,7 @@ The session's approval policy was switched — log-only, durable, replayable, ne 'approval/policy': { policy: ApprovalPolicy } ``` -Source: [`packages/approval/approval/src/index.ts:101`](../packages/approval/approval/src/index.ts) +Source: [`packages/ui/user-approval/src/index.ts:101`](../packages/ui/user-approval/src/index.ts) ### `assistant/*` diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index 9d1555e6ee..44d5fd972f 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -8,8 +8,6 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | Title | First proposed | |---|---| -| [Agent Client Protocol (ACP) support — drive the coding agent from external editors](proposed/feature/2026-06-14-acp-agent-client-protocol.md) | 2026-06-14 | -| [Multiplex concurrent ACP sessions over one connection](proposed/feature/2026-06-14-acp-multi-session.md) | 2026-06-14 | | [Pre-tool input rewrite — a consistent design](proposed/feature/2026-06-30-pre-tool-input-rewrite.md) | 2026-06-30 | | [Claude Code and Codex subagent backends (out-of-process delegation to external coding agents)](proposed/feature/2026-07-07-claude-code-and-codex-subagent-backends.md) | 2026-07-07 | @@ -49,6 +47,8 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | Title | First proposed | |---|---| +| [Agent Client Protocol (ACP) support — drive the coding agent from external editors](implemented/feature/2026-06-14-acp-agent-client-protocol.md) | 2026-06-14 | +| [Multiplex concurrent ACP sessions over one connection](implemented/feature/2026-06-14-acp-multi-session.md) | 2026-06-14 | | [Code Mode — the model writes TypeScript against the tool registry](implemented/feature/2026-06-15-code-mode.md) | 2026-06-15 | | [Filesystem tool schemas — model-facing read/write/edit shapes](implemented/feature/2026-06-17-filesystem-tool-schemas.md) | 2026-06-17 | | [Rich ACP bash rendering — the terminal card via the `_meta` convention](implemented/feature/2026-06-18-acp-terminal-and-tool-rendering.md) | 2026-06-18 | diff --git a/docs/rfc/implemented/architecture/2026-06-14-session-persistence.md b/docs/rfc/implemented/architecture/2026-06-14-session-persistence.md index 135c1671f6..1d3ce8929c 100644 --- a/docs/rfc/implemented/architecture/2026-06-14-session-persistence.md +++ b/docs/rfc/implemented/architecture/2026-06-14-session-persistence.md @@ -6,7 +6,7 @@ Status: implemented ## Problem -Sessions lived only in memory. The example `session-jsonl.ts` plugin (duplicated byte-for-byte in both examples) was write-only telemetry: it buffered `session/event` and appended JSON lines, with no read/replay path, no crash-safety (no fsync, no atomic write, a fire-and-forget dispose drain), no listing, and no format versioning. Nothing could rehydrate a past session from disk into a live agent, so durable resume ("continue yesterday's task"), durable forking, and the ACP `session/load` method ([ACP support](../../proposed/feature/2026-06-14-acp-agent-client-protocol.md)) were all impossible. +Sessions lived only in memory. The example `session-jsonl.ts` plugin (duplicated byte-for-byte in both examples) was write-only telemetry: it buffered `session/event` and appended JSON lines, with no read/replay path, no crash-safety (no fsync, no atomic write, a fire-and-forget dispose drain), no listing, and no format versioning. Nothing could rehydrate a past session from disk into a live agent, so durable resume ("continue yesterday's task"), durable forking, and the ACP `session/load` method ([ACP support](../../implemented/feature/2026-06-14-acp-agent-client-protocol.md)) were all impossible. The [event-sourced model](2026-06-11-event-sourced-sessions.md) makes the append-only log the single source of truth and derives LLM history from it. Persistence had to stay faithful to that: persist the existing `SessionEvent` directly, with no parallel "persisted message" type that the log is converted to and from. The backend also had to be swappable — a file store now, a database store later — behind one interface. @@ -33,4 +33,4 @@ Format versioning: the header carries a `version`; `load` rejects any non-curren ## Consequences -Two new packages and the metadata seam in `dsh-session` (`session.header`, the `create(id?, options?)` signature). Bought: durable resume/fork, a read/replay path, crash tolerance, and the foundation the ACP `session/load` ([ACP support](../../proposed/feature/2026-06-14-acp-agent-client-protocol.md)) needs — all over the existing event-sourced log, with the backend swappable behind one interface. The reusable `runPersistenceContract` suite holds every backend to the same append-only / contiguous-seq / lazy-materialization / serializability semantics. This completes [event-sourced sessions](2026-06-11-event-sourced-sessions.md)'s deferred "real persistence backend" and resolves its `TODO(review)` on the event vocabulary: persisting the log freezes its shape, and the `assistant/chunk` fidelity question is answered above (persist verbatim). +Two new packages and the metadata seam in `dsh-session` (`session.header`, the `create(id?, options?)` signature). Bought: durable resume/fork, a read/replay path, crash tolerance, and the foundation the ACP `session/load` ([ACP support](../../implemented/feature/2026-06-14-acp-agent-client-protocol.md)) needs — all over the existing event-sourced log, with the backend swappable behind one interface. The reusable `runPersistenceContract` suite holds every backend to the same append-only / contiguous-seq / lazy-materialization / serializability semantics. This completes [event-sourced sessions](2026-06-11-event-sourced-sessions.md)'s deferred "real persistence backend" and resolves its `TODO(review)` on the event vocabulary: persisting the log freezes its shape, and the `assistant/chunk` fidelity question is answered above (persist verbatim). diff --git a/docs/rfc/implemented/feature/2026-06-14-acp-agent-client-protocol.md b/docs/rfc/implemented/feature/2026-06-14-acp-agent-client-protocol.md new file mode 100644 index 0000000000..293b1bbde6 --- /dev/null +++ b/docs/rfc/implemented/feature/2026-06-14-acp-agent-client-protocol.md @@ -0,0 +1,57 @@ +# RFC: Agent Client Protocol (ACP) support — drive the coding agent from external editors + +Status: implemented + +## Problem + +The harness originally exposed agents only through a readline loop. That surface could carry text, but it gave an editor no structured way to create or resume sessions, correlate prompt completion, stream reasoning and tool activity, render tool-specific UI, ask for permission, or cancel one conversation without disturbing another. ACP defines those interactions as JSON-RPC over stdio, and Zed is the target client used to make concrete compatibility decisions. + +The bridge must preserve the harness's existing ownership boundaries. It cannot depend on the concrete agent loop, bypass the tool registry, execute shell commands in the editor, or invent a second source of session truth. stdout is also the protocol transport, so any accidental log output corrupts the connection. + +## Decision + +`@deepseek-ai/dsh-acp` is a UI/client-driver plugin under `packages/ui/acp`. It uses `@agentclientprotocol/sdk`'s `AgentSideConnection` over stdin/stdout and programs only interface services: the agent create/resume factory, session persistence, tool registry, user interaction, and optional approval/bash capabilities. It does not change the agent loop and is not a capability-seam implementation. + +The bridge implements the following stable session path: + +- `initialize` negotiates the protocol version, advertises text plus `resource_link` prompts, and advertises `loadSession`. +- `session/new` validates an absolute `cwd`, stores it in `SessionHeader`, creates an agent through `ctx.agents`, and returns any composition-backed config options. +- `session/load` validates the requested cwd against persisted metadata before constructing an agent, reserves the id across the asynchronous resume, replays user/assistant/tool events as ACP updates, and reports the resumed config-option fold. +- `session/prompt` accepts text and resource links, rejects unsupported or empty content, allows one in-flight prompt per session, and settles against that prompt's owning `turn/end`. An error turn rejects the RPC; other closed turn reasons map through a total ACP stop-reason codec. +- `session/cancel` calls the queue-aware agent cancel path and settles only the addressed session's prompt. + +Tool-call presentation remains tool-owned. A tool's `presentCall` and `presentResult` return the `generic`, `terminal`, or `diff` render-intent variants; the bridge switches on that union and maps it to ACP. Presenter-less tools receive a generic fallback. Bash terminal cards use Zed's capability-gated `_meta.terminal_info`, `_meta.terminal_output`, and `_meta.terminal_exit` convention; the harness still executes the command through `ctx.bash`, preserving sandbox, environment scrub, ownership, and cwd. Clients without that extension receive ordinary text content. Filesystem tools provide diff cards and file locations without hard-coded tool-name branches in the bridge. + +Permission handling is an answerer on the [user-approval seam](2026-07-06-approval-seam.md), not an ask-every-tool policy in ACP. An `approval/request` for a bridge-owned agent with a call id becomes `session/request_permission` on that agent's editor session, with one-shot allow/reject choices. Foreign or call-less requests delegate; a missing or failed answerer remains fail-closed. The plugin that asks—such as a pre-execute policy or bash escalation—owns the decision to ask. + +The bridge advertises ACP config options instead of session modes. `sandbox-mode` exists only when the mounted bash executor reports sandbox capability, and `approval-policy` exists only when `ctx.approval` is composed. Each option is an independent select whose current value is the session event fold over the composition default. `session/set_config_option` validates against the owning domain vocabulary and writes through `setSandboxMode` or `setApprovalPolicy`. An open-turn switch appends immediately; an idle switch is overlaid in the response and anchored at the next turn start. Until that anchor it is memory-only and a crash reverts to the durable fold. ACP session modes are deliberately not modeled because one mode list cannot represent these orthogonal knobs and config options are the forward protocol surface. Runtime model selection remains outside this decision; `AcpConfig.model` is connection-wide. + +The bridge also provides the ACP-backed `UserInteractionProvider`: `ask_user_question` requests become form elicitations on the owning session. Select, multi-select, option descriptions, and custom-answer override semantics are preserved. + +Lifecycle ownership is explicit. The bridge holds an `AgentHandle` per live session. Disconnect and Cordis disposal cancel pending prompts, dispose every handle in parallel, await loop quiescence and persistence flush, and then remove the records. Stream notification failures are contained so a vanished client cannot corrupt an agent turn. The ACP app composition loads no stdout logger; a test guards stdout as framed JSON-RPC only. + +The precise supported and deferred protocol rows live in [`packages/ui/acp/acp-feature-support.md`](../../../../packages/ui/acp/acp-feature-support.md); the package README is the operational contract. + +## Alternatives considered + +**A prepended `tools/execute` listener that asks on every ACP-owned call** — rejected. It would hard-code permission policy into the UI bridge, ask even when no policy requires it, and could not serve approval requests that arise after execution begins. The shared user-approval seam keeps mechanism, asking policy, and UI answerer separate. + +**Inject the concrete `agentLoop`** — rejected. Agent creation, resume, idle observation, and disposal are interface-level ownership operations on `dsh-agent`; a UI plugin does not need a dependency-rule exception. + +**Execute bash through ACP `terminal/*`** — rejected. That would move execution outside the harness and bypass its sandbox, credential scrub, task ownership, cwd resolution, and session log. Terminal metadata is presentation only. + +**Represent sandbox and approval as ACP session modes** — rejected. They are independent composable settings, while a single current mode is mutually exclusive. ACP config options represent both without a cross-product and match the protocol's forward direction. + +**Hijack stdout defensively** — rejected. Process-wide monkey-patching is outside Cordis effect ownership and races the protocol transport. The app composition owns stdout purity. + +## Consequences + +Editors can create, load, prompt, cancel, render, ask, and reconfigure multiple harness sessions over one ACP connection without a loop-specific dependency. The session event log remains the durable source for replay, prompt settlement, cwd, and per-session configuration. Tool presentation and human-answer channels remain extensible plugin contracts instead of ACP-specific behavior. + +The bridge deliberately does not implement session list/delete/resume/close capabilities, MCP passthrough, additional directories, image/audio/embedded-resource prompts, runtime model selection, plans, slash commands, usage updates, editor filesystem delegation, or the ACP terminal execution sub-protocol. The feature checklist records these as unsupported rather than silently accepting them. + +An idle config selection is truthful in the live response but not durable until the next turn anchors it. Crashing before that boundary loses the pending selection; this is the cost of keeping session events turn-enclosed and replay-safe. + +## Verification + +The ACP suites cover the in-memory protocol codec, create/load replay, exact prompt settlement, cancellation races, unsupported content, tool presentation, terminal capability fallback, permission outcome mapping, config-option validation and persistence, multi-session isolation, disconnect/disposal quiescence, and HMR cleanup. Snapshot and built-bin tests exercise the app composition, while the real-API e2e self-skips without a key. diff --git a/docs/rfc/implemented/feature/2026-06-14-acp-multi-session.md b/docs/rfc/implemented/feature/2026-06-14-acp-multi-session.md new file mode 100644 index 0000000000..77fa2b4669 --- /dev/null +++ b/docs/rfc/implemented/feature/2026-06-14-acp-multi-session.md @@ -0,0 +1,37 @@ +# RFC: Multiplex concurrent ACP sessions over one connection + +Status: implemented + +## Problem + +An ACP editor can keep several conversations alive over one agent subprocess. A single-active-session bridge would force extra processes and would not match Zed's client model, which tracks multiple session ids and concurrent loads. Multiplexing introduces isolation risks: events, prompt completion, cancellation, permission prompts, config selections, and predictable background-task ids must never cross session boundaries. + +## Decision + +The ACP bridge stores live sessions in `Map` and keeps a `WeakMap` reverse index for agent-scoped callbacks. A record owns its agent handle, in-flight prompt, live tool-call presentation state, pending idle config switches, session cwd, and client capability snapshot. A separate loading-id set reserves each id before asynchronous resume so two pipelined loads cannot construct duplicate agents; distinct ids may load concurrently. + +Every `session/event` and `agent/status` callback resolves the owning record before sending or settling anything. Each session permits one in-flight prompt independently. The prompt records a log watermark, captures its own `turn/start`, and settles only on the matching `turn/end`; a late end from a cancelled prior turn cannot resolve a newer prompt. `session/cancel` addresses one record and calls only that agent's queue-aware cancel path. + +Permission ownership uses the same reverse index. The ACP `approval/request` answerer prompts only the editor session that owns the requesting agent and delegates foreign requests. User-interaction elicitations likewise route by agent ownership. Per-session sandbox and approval config values fold only that session's events, with pending idle switches stored on that record until the next turn anchors them. + +Background bash tasks carry an opaque owner token equal to the owning session id. `bash_output` and `bash_kill` compare the caller's token with the executor's task ownership before reading or killing; a predictable task id alone grants no access. Ownership is stored with the executor task, so a tool plugin reload does not erase it. + +Connection teardown clears the live map, settles each pending prompt as cancelled, and disposes all `AgentHandle`s in parallel. Each handle stops and awaits its loop, flushes the session while attached, unregisters the agent, and removes the session. Teardown is memoized and shared by client disconnect and plugin disposal. + +## Alternatives considered + +**One live session per connection** — rejected. It adds process overhead and contradicts the target client's multi-session shape without removing multiplexing needs from the editor. + +**A per-session `ctx.extend()`** — rejected. A child context does not by itself create a child plugin fiber, so listeners would still belong to the bridge fiber. The implemented bridge instead uses global listeners with explicit O(1) demultiplexing and per-session owned records; agent lifecycle is owned by `AgentHandle`. + +**Agent object identity as bash-task ownership** — rejected. A resumed or replaced agent object may legitimately represent the same durable session. The opaque session token is the cross-boundary identity that should survive plugin reloads. + +## Consequences + +N sessions can stream, prompt, request permission, switch config, and run background tasks concurrently without interleaving or cross-settling. A cancel or dispose in one session does not affect its neighbors. The bridge pays for explicit maps and isolation tests, but it does not add one listener set per session and therefore avoids listener fan-out during long-lived connections. + +The bridge still exposes no protocol method to close one live session independently. Today records leave together on connection teardown; session close/resume lifecycle capabilities remain deferred in the ACP feature checklist. + +## Verification + +The multi-session suite drives concurrent sessions through interleaved updates, independent in-flight prompts, targeted cancellation, same-id and distinct-id load races, permission routing, config isolation, and teardown. Tool-bash tests prove one session cannot read or kill another session's background task. diff --git a/docs/rfc/implemented/feature/2026-06-18-acp-terminal-and-tool-rendering.md b/docs/rfc/implemented/feature/2026-06-18-acp-terminal-and-tool-rendering.md index bca351e906..5eb38f1f99 100644 --- a/docs/rfc/implemented/feature/2026-06-18-acp-terminal-and-tool-rendering.md +++ b/docs/rfc/implemented/feature/2026-06-18-acp-terminal-and-tool-rendering.md @@ -4,7 +4,7 @@ Status: implemented ## Problem -The ACP bridge lets each tool own its call rendering via `presentCall`/`presentResult` (see [tool-call UI presentation](../../proposed/feature/2026-06-14-acp-agent-client-protocol.md) and `packages/core/tools`). For `bash` we surface the exact command as the `tool_call` title, the model's `description` as a content text block, `kind: 'execute'`, and the completed output wrapped in a fenced ` ```console ` text block. +The ACP bridge lets each tool own its call rendering via `presentCall`/`presentResult` (see [tool-call UI presentation](../../implemented/feature/2026-06-14-acp-agent-client-protocol.md) and `packages/core/tools`). For `bash` we surface the exact command as the `tool_call` title, the model's `description` as a content text block, `kind: 'execute'`, and the completed output wrapped in a fenced ` ```console ` text block. That is a correct, capability-free baseline, but not how the reference editors render a *terminal* tool at its best. An editor like Zed has a dedicated terminal tool-call card — a header showing the working directory, the command as the label, the command output rendered as a terminal, and an exit-status pill — but it only builds that card when the `tool_call` carries terminal metadata (below). With a plain text block the output appears as static markdown and there is no cwd header. (Zed also HIDES `rawInput` for `kind: 'execute'`, which is why the command IS the title — both reference adapters do the same. The human-readable description rides as a separate content block above the card; note this is a DELIBERATE divergence — claude-agent-acp DROPS the description in terminal mode and renders only the card — we keep the summary visible alongside.) diff --git a/docs/rfc/implemented/feature/2026-07-06-approval-seam.md b/docs/rfc/implemented/feature/2026-07-06-approval-seam.md index a5f6efd2d1..eddb3ba733 100644 --- a/docs/rfc/implemented/feature/2026-07-06-approval-seam.md +++ b/docs/rfc/implemented/feature/2026-07-06-approval-seam.md @@ -10,7 +10,7 @@ The routing problem is ownership: an approval prompt must reach the editor sessi ## Decision -One package, `dsh-approval` (`packages/approval/approval`), owning the vocabulary and the `ctx.approval` service — the MECHANISM. The POLICY — who answers, and whether a session is asked at all — lives outside it: answerers are `approval/request` waterfall listeners registered by the plugins that own the channel (the ACP bridge; future terminal UIs; test scripts), and a per-session policy tier can decide before any human is involved. Consumers (`dsh-tools`' ask routing, the sandbox escalation gate) resolve a question to a closed outcome and derive their own tool results from it. Deliberately ONE package, not the capability-seam three (see Alternatives). +One package, `dsh-user-approval` (`packages/ui/user-approval`), owning the vocabulary and the `ctx.approval` service — the MECHANISM. The POLICY — who answers, and whether a session is asked at all — lives outside it: answerers are `approval/request` waterfall listeners registered by the plugins that own the channel (the ACP bridge; future terminal UIs; test scripts), and a per-session policy tier can decide before any human is involved. Consumers (`dsh-tools`' ask routing, the sandbox escalation gate) resolve a question to a closed outcome and derive their own tool results from it. Deliberately ONE package, not the capability-seam three (see Alternatives). ### How a deployment uses it @@ -18,7 +18,7 @@ One `cordis.yml` entry mounts the seam; not loading it is the opt-out — consum ```yaml - id: approval - name: '@deepseek-ai/dsh-approval' + name: '@deepseek-ai/dsh-user-approval' # config: # policy: never # deployment default for sessions without an override; 'ask' when omitted ``` @@ -53,7 +53,7 @@ The `escalation-rejected` twin ends in `{"outcome": "rejected"}` instead: nothin Answerers are the policy, and they are `approval/request` waterfall listeners. The waterfall buys exactly what the seam needs: with zero listeners the dispatch falls through to the caller-supplied default — `unavailable`, so fail-closed needs no configuration and no code in any deployment; a listener that recognizes the request's agent answers by returning an outcome without calling `next()` (the decision slot is single-occupancy, first answer wins — the same documented semantics as the `fs/write-intent` gate); a listener that does not recognize the agent MUST delegate via `next()` so another answerer or the default gets the question; and listeners dispose with their owning fiber, so an unloaded UI plugin degrades the next ask to `unavailable` instead of leaving a dangling channel. Registration order across sibling plugins is not load-order deterministic (the loader starts siblings concurrently), so a deployment composes ONE terminal answerer and reserves `prepend` listeners for decide-or-delegate gates. -`ApprovalRequest` carries the asking `agent` (routes the question; receives the audit events), the `toolName`, the optional exact `callId`, the asker's human-readable `reason`, and the optional `signal`. The vocabulary is deliberately self-contained — it names the tool-call by the `CallId` brand from `dsh-llm` and never imports `dsh-tools` — because `dsh-tools` depends on `dsh-approval` (the ask routing) and a `ToolCallView` import would close a package cycle. It deliberately does NOT carry tool arguments: a UI answerer attaches the prompt to the already-streamed tool call via `callId` instead of re-rendering the call. +`ApprovalRequest` carries the asking `agent` (routes the question; receives the audit events), the `toolName`, the optional exact `callId`, the asker's human-readable `reason`, and the optional `signal`. The vocabulary is deliberately self-contained — it names the tool-call by the `CallId` brand from `dsh-llm` and never imports `dsh-tools` — because `dsh-tools` depends on `dsh-user-approval` (the ask routing) and a `ToolCallView` import would close a package cycle. It deliberately does NOT carry tool arguments: a UI answerer attaches the prompt to the already-streamed tool call via `callId` instead of re-rendering the call. #### Ask routing in dsh-tools @@ -67,7 +67,7 @@ The seam also owns the session-scoped approval policy — the approval knob of t The bridge registers the first real answerer: it resolves the owning session through its existing `WeakMap` reverse map, issues `session/request_permission` with the request's `callId` as the `toolCall` reference and the one-shot options `allow_once`/`reject_once`, and maps the response — selected `allow-once` → `allowed-once`, any other selection → `rejected` (an unknown optionId from a non-conforming client never grants), client `cancelled` → `cancelled`. A request for a foreign agent — or one without a `callId`, since the protocol prompt must attach to a tool call — delegates via `next()`. A rejected RPC (client gone mid-prompt) propagates to the service, which contains it as `unavailable`. Whether a call ASKS at all is policy — a hook or `tools/pre-execute` plugin returning `ask` — never the bridge's own judgment. -The reverse-map ownership seam [the ACP support RFC](../../proposed/feature/2026-06-14-acp-agent-client-protocol.md) laid down is exactly what the answerer routes through, and per-session permission ownership (the blocker recorded in [the multi-session RFC](../../proposed/feature/2026-06-14-acp-multi-session.md)) is what it implements. +The reverse-map ownership seam [the ACP support RFC](../../implemented/feature/2026-06-14-acp-agent-client-protocol.md) laid down is exactly what the answerer routes through, and per-session permission ownership (the blocker recorded in [the multi-session RFC](../../implemented/feature/2026-06-14-acp-multi-session.md)) is what it implements. #### Audit, and what the model sees @@ -75,11 +75,11 @@ The reverse-map ownership seam [the ACP support RFC](../../proposed/feature/2026 #### Entities and dependencies -One package, no cycles: `dsh-approval` peers on `cordis`, `dsh-session` (event-map merge + append), `dsh-agent` (the `Agent` type), `dsh-llm` (`CallId`, via `dsh-brand`). `dsh-tools` and `dsh-acp` each peer on it; the escalation phase's asker lives in `dsh-tool-bash` (see [the sandbox RFC](2026-07-06-sandbox.md) § Escalation), so the sandbox family keeps its ZERO-edge relation (the executor contributes the per-call override mechanism, and transport seams never ask humans questions). The seam is one package, not the capability-seam three: the service body (dispatch + audit) has no replaceable implementation — the replaceable part is the answerer listeners, and those live with their owners (the bridge; future terminal UIs; test scripts). `@cordisjs/plugin-capability` stays orthogonal (a static grant registry answers "is this already authorized", not "ask the user now"), and `subagent-acp`'s child-side `permission` auto-answer is untouched — routing a child's approvals to the parent session is deferred (§ Deferred). +One package, no cycles: `dsh-user-approval` peers on `cordis`, `dsh-session` (event-map merge + append), `dsh-agent` (the `Agent` type), `dsh-llm` (`CallId`, via `dsh-brand`). `dsh-tools` and `dsh-acp` each peer on it; the escalation phase's asker lives in `dsh-tool-bash` (see [the sandbox RFC](2026-07-06-sandbox.md) § Escalation), so the sandbox family keeps its ZERO-edge relation (the executor contributes the per-call override mechanism, and transport seams never ask humans questions). The seam is one package, not the capability-seam three: the service body (dispatch + audit) has no replaceable implementation — the replaceable part is the answerer listeners, and those live with their owners (the bridge; future terminal UIs; test scripts). `@cordisjs/plugin-capability` stays orthogonal (a static grant registry answers "is this already authorized", not "ask the user now"), and `subagent-acp`'s child-side `permission` auto-answer is untouched — routing a child's approvals to the parent session is deferred (§ Deferred). ### Testing -Unit tier: the service's outcome branches (fail-closed default, first-wins slot, delegation, containment, rogue-value normalization, abort-before and abort-during with late-answer discard, fresh ids, fiber-disposal degradation) and the policy tier (both values × dispatch/decide, a `'never'` decision unbypassable even by an answerer prepended AFTER the service, audit pair intact) in `dsh-approval`; the ask routing matrix (grant dispatches; three non-grant reasons pinned verbatim; unmounted and agent-less degrades; the registry's own exhaustiveness backstop against a non-conforming stand-in) in `dsh-tools`; the answerer (wire shape of the prompt, outcome mapping, unknown-option conservatism, foreign-agent and call-less delegation) driven through a real bridge + scripted client in `dsh-acp`. +Unit tier: the service's outcome branches (fail-closed default, first-wins slot, delegation, containment, rogue-value normalization, abort-before and abort-during with late-answer discard, fresh ids, fiber-disposal degradation) and the policy tier (both values × dispatch/decide, a `'never'` decision unbypassable even by an answerer prepended AFTER the service, audit pair intact) in `dsh-user-approval`; the ask routing matrix (grant dispatches; three non-grant reasons pinned verbatim; unmounted and agent-less degrades; the registry's own exhaustiveness backstop against a non-conforming stand-in) in `dsh-tools`; the answerer (wire shape of the prompt, outcome mapping, unknown-option conservatism, foreign-agent and call-less delegation) driven through a real bridge + scripted client in `dsh-acp`. Snapshot tier: the harness accepts scripted permission answers (`permissionAnswers` in a scenario's `input.json`, consumed FIFO; an unscripted prompt answers `cancelled`, fail closed). The seam's wire is recorded end to end in the sandbox example's suite: both escalation branches drive `session/request_permission` through this seam over scripted answers (grant and rejection), and the recorded `mode-switching` scenario pins the `'never'` prompt sentence and the policy-switch notice ([the sandbox RFC](2026-07-06-sandbox.md) § Testing). @@ -92,7 +92,7 @@ Snapshot tier: the harness accepts scripted permission answers (`permissionAnswe ## Alternatives considered - **A single registered provider instead of waterfall listeners** — rejected: a `registerProvider()` surface forces every composition question — allowlist pre-filters, external hook deciders, scripted test answers, a policy gate in front of a human — inside one provider implementation. The waterfall gets composition, fail-closed absence, and HMR disposal from machinery the runtime already has; the seam's JSDoc pins the single-decision-slot convention instead of inventing a provider registry. -- **[The ACP support RFC](../../proposed/feature/2026-06-14-acp-agent-client-protocol.md)'s inline `tools/pre-execute` permission gate** — rejected, and superseded by this seam: prompting for every bridge-owned call hardwires the asking POLICY into the UI plugin, cannot serve a second asker (sandbox escalation happens after execution starts, with no pre-execute moment), and leaves hooks' `ask` — the vocabulary the interception seams already ship — unserviced. +- **[The ACP support RFC](../../implemented/feature/2026-06-14-acp-agent-client-protocol.md)'s inline `tools/pre-execute` permission gate** — rejected, and superseded by this seam: prompting for every bridge-owned call hardwires the asking POLICY into the UI plugin, cannot serve a second asker (sandbox escalation happens after execution starts, with no pre-execute moment), and leaves hooks' `ask` — the vocabulary the interception seams already ship — unserviced. - **A generic user-interaction seam (`ctx.userInteraction`) instead** — rejected: the two share a skeleton (route by agent, block for a human, handle absence), but approval's contract is narrower in every dimension that matters: a closed outcome vocabulary instead of free text, a protocol-native prompt attached to a tool call instead of a generic form, mandatory fail-closed absence, and audit events. The generic seam has since shipped (`packages/ui/user-interaction`, the `ask_user_question` tool over ACP elicitation) and approval deliberately still does not ride it — an elicitation form is not a permission prompt, and a free-text answer is not a closed outcome; sharing provider plumbing stays open if the two ever converge. - **Static optional injection in `dsh-tools`** — rejected: the vendored cordis `Inject` type has no optional flag — the object form maps service names to intercept config, and a declared inject gates the fiber. `ctx.get('approval')` is the documented opportunistic-consumption pattern (the `tool-bash` owner-token lookup, the loop's persistence probe), reads presence per call, and degrades correctly across HMR without extra machinery. - **The capability-seam three-package split** — rejected: interface/implementation/consumer fits a seam whose implementation is swappable (bash-local vs bash-sandbox). Here the service body is fixed mechanism and the variable part is listeners that live with their owners — splitting would manufacture an implementation package with nothing in it ("don't split preemptively"). @@ -137,5 +137,5 @@ In-repo precedents this design copies or contrasts with: - The `fs/write-intent` gate (`packages/fs/fs/`) — the documented single-occupancy decision-slot waterfall semantics (first answer wins, delegate via `next()`) the answerer contract reuses. - `hook/invoked`/`hook/result` — the log-only audit-pair precedent `approval/asked`/`approval/decided` follows; [the hook-bridges RFC](2026-06-30-hook-bridges.md) ships `permissionDecision: ask`, the first producer. - [The interception-seams RFC](2026-06-30-interception-seams.md) — the `tools/pre-execute` `allow`/`deny`/`ask` vocabulary whose `ask` this seam services. -- [The ACP support RFC](../../proposed/feature/2026-06-14-acp-agent-client-protocol.md) — the `WeakMap` ownership seam the answerer routes through; [the multi-session RFC](../../proposed/feature/2026-06-14-acp-multi-session.md) — the per-session permission-ownership blocker this implements. +- [The ACP support RFC](../../implemented/feature/2026-06-14-acp-agent-client-protocol.md) — the `WeakMap` ownership seam the answerer routes through; [the multi-session RFC](../../implemented/feature/2026-06-14-acp-multi-session.md) — the per-session permission-ownership blocker this implements. - The opportunistic `ctx.get()` consumption pattern (`tool-bash`'s owner-token lookup, the loop's persistence probe) — how `dsh-tools` consumes the seam without gating its fiber on it. diff --git a/docs/rfc/implemented/feature/2026-07-06-sandbox.md b/docs/rfc/implemented/feature/2026-07-06-sandbox.md index b9678e866e..cea1211487 100644 --- a/docs/rfc/implemented/feature/2026-07-06-sandbox.md +++ b/docs/rfc/implemented/feature/2026-07-06-sandbox.md @@ -27,7 +27,7 @@ Three `cordis.yml` entries turn an unconfined coding agent into the sandboxed pr mode: read-only # the deployment default every session starts from workspaceRoot: !!js process.cwd() # the boundary workspace-write may write under - id: approval - name: '@deepseek-ai/dsh-approval' # the escalation gate's channel (the approval RFC) + name: '@deepseek-ai/dsh-user-approval' # the escalation gate's channel (the approval RFC) ``` The swap is invisible to every consumer of `ctx.bash`: the bash tools, hook commands, and background tasks run exactly as before, spawned through the wrapped argv the provider returns. Deleting the `sandbox` and `bash` entries and loading `@deepseek-ai/dsh-bash-local` instead is the opt-out — execution is unconfined again and the escalation fields vanish from the tool schema, because they are capability-gated on the mounted executor, not on configuration. Omitting only `approval` keeps confinement but fails every escalation closed with its own error text. @@ -105,7 +105,7 @@ effective(session) = findLast(the session's own knob events)?.value ?? the compo The default is composition config (`cordis.yml`) — operator-owned, process-wide. A runtime switch is a SESSION-SCOPED override recorded as one log-only event in that session's own log. Restart immunity (resuming a session replays its log, so overrides come back with zero catch-up machinery) and multi-session isolation (one editor tab's `workspace-write` cannot disturb another's `read-only`) both fall out by construction, and no external config store exists anywhere. -**One event per knob, owned by its domain** — the merge-extensible `SessionEventMap` idiom every existing event family already follows (`approval/*` in `dsh-approval`, `hook/*` in the hooks packages): +**One event per knob, owned by its domain** — the merge-extensible `SessionEventMap` idiom every existing event family already follows (`approval/*` in `dsh-user-approval`, `hook/*` in the hooks packages): ```ts interface SessionEventMap { diff --git a/docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md b/docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md deleted file mode 100644 index 1f3f9b071b..0000000000 --- a/docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md +++ /dev/null @@ -1,84 +0,0 @@ -# RFC: Agent Client Protocol (ACP) support — drive the coding agent from external editors - -Status: proposed - -> **Implementation status (MVP landed):** steps 1, 2, 3, 4, 6, 7, 8 are implemented in `packages/ui/acp` + `examples/acp-agent`. **Step 5 (the `session/request_permission` permission gate) is implemented in amended form** — not as this RFC's prepended ask-every-owned-call `tools/pre-execute` listener, but as the bridge's answerer on the [approval seam](../../implemented/feature/2026-07-06-approval-seam.md) (`ctx.approval`): an `ask` from a hook or gate plugin becomes an editor prompt routed through the `WeakMap` ownership seam this RFC laid down; whether a call asks is policy, so with no ask-producing plugin composed, tools keep the executor's full authority. Status stays `proposed` until the remaining deferred surface (modes/config options) settles. `session/cancel` is the queue-aware `agent.cancel()`: it aborts a running step, clears queued + steering work, and drops a turn that is about to start, so a queued-but-not-yet-started prompt never runs and a later prompt cannot be batched into the cancelled turn. **Per-session `cwd` is now honored** (lifting the original "launch the server in the workspace root" restriction — see § Deferred): `session/new` accepts any absolute `cwd`, and `session/load` requires the request `cwd` to match the persisted session `cwd` so the editor and bash executor agree on the workspace. - -## Problem - -The coding agent is reachable only through the readline `stdio-chat` plugin: it reads lines from stdin, calls `agent.send()`, and prints the assistant token stream (`session/event` `assistant/chunk`) to stdout. There is no structured protocol, so the agent cannot be embedded in an editor — no streaming render, no tool-call display, no permission UI, no resumable sessions. - -Editors are converging on the Agent Client Protocol (ACP), which Zed and others speak: JSON-RPC 2.0 over newline-delimited stdio, modeled on the Language Server Protocol. An editor boots the agent as a subprocess and exchanges `initialize` / `session/new` / `session/prompt`, rendering streamed `session/update` notifications and `session/request_permission` prompts. The goal is for the agent to be a drop-in ACP server — implement the protocol once and run in any ACP client, with no per-editor glue. - -This RFC has a hard prerequisite on [session persistence](../../implemented/architecture/2026-06-14-session-persistence.md): it assumes durable session persistence (the `SessionPersistence` service and the async `AgentLoop.resume` seam) is implemented, so resuming a session via `session/load` is in scope. None of those APIs exist yet — `AgentLoop` currently exposes only the synchronous `create` — so ACP must land after, or in the same change as, [session persistence](../../implemented/architecture/2026-06-14-session-persistence.md), and pins to its `resume(agentId, resumeSessionId)` contract. Session persistence persists every `SessionEvent` verbatim (including `assistant/chunk`), so a loaded session has the stream chunks needed to replay turns to the client. - -## Proposal - -A new plugin package `@deepseek-ai/dsh-acp` — a client-driver / UI plugin, the structured analogue of `stdio-chat`. It is NOT a change to the loop and NOT an [capability seams](../../implemented/architecture/2026-06-13-capability-seams.md) interface/implementation/consumer capability split; it consumes the existing `agent/*` event taxonomy and the `tools/pre-execute`/`tools/post-execute` waterfalls. - -It depends on the official `@agentclientprotocol/sdk` (the `AgentSideConnection` class) — Apache-2.0, actively versioned. The SDK declares a `zod` peer dependency and imports `zod/v4` at runtime, so `packages/ui/acp` must declare `zod` itself (per the workspace dependency constraints). This is the renamed successor to `@zed-industries/agent-client-protocol`, which is now deprecated on npm. - -The mapping between ACP and existing harness seams — each row names the seam and any required extension: - -| ACP (client ⇄ agent) | Harness seam | Notes | -|---|---|---| -| `initialize` | static handler | negotiate `protocolVersion` (echo the supported version, else error); advertise text-only `promptCapabilities` and `loadSession: true`; report agent name/version | -| `session/new {cwd, mcpServers, additionalDirectories}` → `{sessionId}` | the `dsh-agent` create factory (see Dependency note + Plan) | the seam must accept `{ sessionId, meta }` so the ACP-generated `sessionId` becomes the live/persisted session id and the validated `cwd` is attached as the `SessionHeader` (today `AgentLoop.create(id)` hardcodes `${id}-session` and takes no metadata); reject a 2nd session (single-session MVP, see [ACP multi-session](2026-06-14-acp-multi-session.md)); `cwd` validated (require absolute) — any absolute cwd is honored: it becomes the session's `SessionHeader.cwd` and the default bash workdir (per-session cwd, see § Deferred → RESOLVED), so the server need not launch in the workspace; non-empty `mcpServers` and `additionalDirectories` are rejected for the MVP because silently ignoring requested servers/roots would desync the client's tool and filesystem-scope UI | -| `session/load {sessionId, cwd, mcpServers, additionalDirectories}` | the `dsh-agent` resume factory ([session persistence](../../implemented/architecture/2026-06-14-session-persistence.md) + Dependency note) | load `{ meta, events }`, seed the session, re-derive history via `deriveMessages()`, replay prior turns to the client as `session/update` per the ACP load contract; `mcpServers` and `additionalDirectories` rejected as in `session/new` | -| `session/prompt {prompt}` | `agent.send()` (idle) | text blocks → `TextBlock`; reject image/audio per advertised capabilities; one in-flight prompt per session | -| resolve `session/prompt` → `{stopReason}` | the `turn/end` `session/event` (its `reason`) | map the harness kebab `TurnEndReason` to the ACP snake_case `StopReason` wire enum: `completed`→`end_turn`, `max-tokens`→`max_tokens`, `aborted`(cancel)→`cancelled`, plus `refusal`/`max_turn_requests` when applicable; honor the batch-into-one-turn and send-not-synchronously-running settle semantics | -| `session/update: agent_message_chunk` | `session/event` `assistant/chunk` `text-delta` only | do NOT also emit on `block-end(TextBlock)` — it carries the fully-assembled block and would duplicate the streamed text | -| `session/update: agent_thought_chunk` | `session/event` `assistant/chunk` `reasoning-delta` | | -| `session/update: tool_call` (pending→in_progress) | `session/event` `tool/call` | demux via a Session→sessionId map; `kind` inferred from the tool name | -| `session/update: tool_call_update` (completed/failed) | `session/event` `tool/result` | a throwing `tools/execute` yields NO `tool/result` → fail the pending tool UI from `agent/error`/turn-end | -| `session/request_permission {sessionId, toolCall, options}` | prepended `tools/execute` listener | no-op unless `exec.agent` is ACP-owned; await the outcome; `selected/allow_*` → `next()`; `reject_*`/`cancelled` → veto `ToolExecutionResult{isError}` | -| `session/cancel` (notification) | `agent.cancel(reason)` | the queue-aware cancel (abort running step, clear queued + steering, drop an about-to-start turn); settle the in-flight prompt as `cancelled`; resolve any pending permission as `cancelled` exactly once | - -The permission gate is the first real consumer of the `tools/execute` veto seam (the documented "single veto/sandbox/permission seam" plus the deferred "Permission system" TODO in [docs/architecture.md](../../../architecture.md)). It is a single global listener registered with `prepend: true` so it runs before any other tool wrapper. `ToolExecution.agent` is optional and the `Agent` interface carries no origin marker, so the bridge tracks ownership itself: it records each agent it creates in a `WeakMap` and the gate no-ops (calls `next()` immediately) for any `exec.agent` it does not own — non-ACP agents and the no-agent case pass straight through. For an owned agent it resolves the session, issues `session/request_permission`, and stores the pending resolver on that session's record so the outcome — or a `session/cancel`/connection-close — settles it exactly once. - -Lifecycle and disposal: the connection, listeners, and in-flight permission promises register via `ctx.effect`/`ctx.on`; teardown is async and must *reach* quiescence, not just request it — close the connection, settle/reject pending permissions, and dispose each owned agent through its `AgentHandle.dispose()` (which stops the loop, `await`s its exit, and unregisters). Owner teardown goes through that handle seam, not the loop's concrete `agent.done` (which exists only on `ReactLoopAgent`); a non-owner that merely wants to *observe* the current work settling without tearing the agent down awaits the interface-level `agent.whenIdle()`. Every listener contains its `send()` exceptions (log, never reject the turn) because stream chunks are emitted inside the model step, so a throwing listener would corrupt the turn. - -**Dependency note (architecture rule).** [docs/architecture.md](../../../architecture.md) states "plugins depend on interface packages, never on `dsh-agent-loop`." Creating and resuming agents is currently only on the concrete `AgentLoop` (`ctx.agentLoop`), so this RFC proposes adding an **abstract create/resume factory** to the `dsh-agent` interface (registry-level `create({ sessionId, meta })` / `resume(...)`), implemented by the loop, so `dsh-acp` injects only `agents` (the interface) and the dependency rule holds. The alternative — injecting the concrete `agentLoop` and recording a documented exception in the architecture doc — is explicitly the non-preferred fallback. - -## Plan - -1. Package scaffold `packages/ui/acp/` per [the cookbook](../../../cookbook/adding-a-package.md); add `@agentclientprotocol/sdk` and `zod`. Add the abstract create/resume factory to `dsh-agent` (the interface) so the bridge can `inject: ['agents', 'sessions', 'tools', 'sessionPersistence']` without depending on the concrete loop; `sessionPersistence` is required because `session/load` advertises `loadSession: true`. (Fallback only if the factory is judged not worth it: inject `agentLoop` directly and record the architecture-rule exception in `docs/architecture.md`.) -2. Connection plus `initialize`/`session/new`: wire `AgentSideConnection` to stdin/stdout; protocolVersion negotiation; the single-session guard; create the live session through the new `{ sessionId, meta }` factory seam (so the ACP `sessionId` and validated `cwd` become the session's id and header); the `sessionId↔agent` and `Session↔sessionId` maps. -3. Internal edit — turn-end reason fidelity (sanctioned: edit internals to fit ACP). Extend `TurnEndReasonMap` in the proper places: (a) declaration-merge a `max-tokens` variant in the owning package (`packages/core/session/src/types.ts`, alongside `completed|aborted|error|disposed`) — add `max-tokens` because `FinishReasonMap` produces it (DeepSeek maps `length` → `max-tokens`); do not add `refusal`, since no current adapter produces it (unknown DeepSeek finish reasons collapse to `error`), but leave a comment in `TurnEndReasonMap` noting `refusal` should be added when an adapter first emits it (`FinishReasonMap` is merge-extensible); (b) make `agent-loop`'s `loop.ts` populate the reason from the model `finish` chunk — `assembler.finish` lives inside `runStep`, so `runStep` must return it up to `runTurn`, and the rule is "the last step's finish reason wins, but any `max-tokens` in the turn surfaces as `max-tokens`"; (c) no consumer exhaustively switches over `TurnEndReason` today (the invariants plugin switches on `SessionEventType`, and `deriveMessages` ignores `turn/end`), so adding `max-tokens` is a non-breaking extension — but recheck before landing; (d) update [docs/architecture.md](../../../architecture.md) (the CI-verified loop-lifecycle/event-taxonomy doc) and the affected package READMEs/JSDoc (`dsh-session`, `dsh-agent`, `dsh-agent-loop`) per the repo doc-sync policy. This replaces a fragile "observe the finish chunk in the bridge" hack with a real, documented contract. -4. Prompt-turn streaming plus load: translate `session/event` (the `assistant/chunk` token stream plus boundaries and tool activity) into `session/update`; resolve `session/prompt` on settle, mapping the harness `TurnEndReason` to the ACP `StopReason` wire enum (`completed`→`end_turn`, `max-tokens`→`max_tokens`, `aborted`→`cancelled`) — a small total function with a test asserting the exact wire strings, since the SDK rejects an unknown `stopReason`. Concrete correlation, since the loop batches queued messages into one turn and `send()` does not synchronously flip to running: install the `session/event` listener before `send()`; capture the prompt's owning turn from its `turn/start` record, then resolve on that turn's `turn/end` (with `agent/status` idle/disposed as a fallback); reject an empty/whitespace prompt up front rather than calling `send()` (no turn would ever start, so the RPC would hang). Implement `session/load` on the session-persistence resume seam. -5. Permission gate: a single `tools/execute` listener registered with `prepend: true`, owning a `WeakMap` of bridge-created agents; no-op (`next()`) for unowned/no-agent calls; for owned calls → `session/request_permission` → allow (`next()`) / veto; settle the stored resolver exactly once on outcome, cancel, or connection close. -6. Example wiring (extract a shared base). `@cordisjs/plugin-include` is itself a plugin entry that resets `ctx.baseUrl` and loads a path, so a child `cordis.yml` can nest-include a shared base; the extraction is safe because every dependent plugin declares `inject` (loader groups initialize via `Promise.all`, so YAML order is NOT the dependency mechanism — never rely on it). Extract the provider/tool core (`llm, sessions, system-prompt, tools, agents, invariants, llm-deepseek, bash-local, tool-bash`) into `examples/base.yml`; have both `coding-agent` and a new `examples/acp-agent/` include it and add their own UI plugin plus logger. Keep `agent-loop` per-example (NOT in the base): `AgentLoop` creates its configured agents in its constructor, and the two examples disagree — `coding-agent` needs a pre-created `main` (its `stdio-chat` calls `ctx.agents.get('main')`), while `acp-agent` must pre-create none (ACP `session/new` creates agents). So `coding-agent` declares `agent-loop` with `agents: [{ id: main, … }]` and `acp-agent` with `agents: []`. `acp-agent` loads `dsh-session-persistence-jsonl` (from [session persistence](../../implemented/architecture/2026-06-14-session-persistence.md) — required for `session/load`), omits the stdout logger (see Risks), and adds `pnpm run demo:acp` plus the Zed `agent_servers` snippet. -7. Tests (the repo cares a lot here): a property-based test for the protocol shape (precedent: [property-based testing](../../implemented/testing/2026-06-11-property-based-testing.md)) — fuzz arbitrary harness event sequences and assert ACP-stream invariants (never a `tool_call_update` before its `tool_call`; exactly one `session/prompt` resolution per prompt; monotonic, well-formed ordering; `stopReason` in the legal set); codec unit tests over an in-memory `Duplex` pair (drive `AgentSideConnection` without a subprocess; assert exact frames for `initialize`, `session/new`, a full prompt turn); the mandatory HMR-safety test (dispose the fiber; assert the connection closed, all `ctx.on` listeners gone, any in-flight `request_permission` settled); failure-path tests (connection closes mid-stream; closes with a permission pending; a notification `send()` rejects but the turn survives; `finish{kind:'error'|'aborted'}`; a `tools/execute` throw with no `tool/result`; a second `session/new` rejected; a `session/prompt` while one is in flight; an empty prompt rejected without hanging; a `session/load` re-derives identical history and replays it); and an e2e (`*.e2e.ts`, self-skips without `DEEPSEEK_API_KEY`) that boots `examples/acp-agent`, connects a `ClientSideConnection`, sends a real prompt, owns and disposes the harness in `afterEach`, and verifies the world (files on disk), not the agent's self-report. -8. Docs: module/JSDoc plus a package README; extend [the extension cookbook](../../../cookbook/extension-cookbook.md) with the client-driver pattern. Flip Status to `implemented` on landing; record a decision in this RFC only if it proves durable, contested, and surprising (candidates: the `tools/execute` permission-ownership rule, the npm-dependency choice) — not auto-required. - -Deferred (each names its owning future work): - -- Multiplexing concurrent sessions → [ACP multi-session](2026-06-14-acp-multi-session.md). -- ~~`cwd` honoring.~~ **RESOLVED.** Originally there was no path from `session/new.cwd` to the bash workdir (`tool-bash` forwarded only an explicit `args.workdir`; `LocalBashExecutor.resolve` defaulted to its own config or `process.cwd()`), so the MVP validated `cwd` (require absolute) AND required the server to launch in the workspace root, erroring on a mismatch. This is now lifted: the validated `cwd` is stored as `SessionHeader.cwd`, and `dsh-tool-bash` defaults the bash workdir to the calling agent's `session.header.cwd` (an explicit model `workdir` still wins; a relative one resolves against it). Any absolute `cwd` is honored — the server need not launch in the workspace, and N sessions can each target a different directory. Widening scope beyond the single cwd (`additionalDirectories`) remains deferred. -- Client `terminal/*` proxying (a live editor terminal) and `fs/*` (editor-rendered diffs) — a future `BashExecutor` over the [capability seams](../../implemented/architecture/2026-06-13-capability-seams.md) bash seam, gated on `clientCapabilities.terminal`. -- Image/audio prompts (blocked on the DeepSeek adapter, which skips `image` blocks today), modes, auth, `available_commands`/slash-commands, `plan`, and `usage_update`. - -## Alternatives considered - -- **A process-wide stdout hijack inside `dsh-acp`** (defensively monkey-patching `console.log` / `process.stdout.write`) — rejected: it lives outside Cordis' effect-scoped, HMR-friendly plugin model, races the connection's own stdout handoff, and fights the logger. The stdout guarantee is config-only. -- **Injecting `agentLoop` directly instead of the abstract create/resume factory** — the recorded fallback, taken only if the factory seam is judged not worth it, with the architecture-rule exception recorded in `docs/architecture.md`. - -## Acceptance criteria - -- The `acp-agent` example speaks ACP over stdio end-to-end: `initialize`, `session/new` with a validated absolute `cwd` honored as the session workspace, streamed `session/update` frames per prompt turn, `session/load` re-deriving identical history, and `session/prompt` resolving with the correct wire `stopReason`. -- stdout carries only framed JSON-RPC (asserted by test); the permission gate settles every `session/request_permission` exactly once — on outcome, cancel, or connection close. -- The plan's test set runs green: the property-based protocol invariants, the codec unit tests over an in-memory duplex pair, the HMR-safety test, the failure-path matrix, and the self-skipping real-API e2e that verifies the world. - -## Risks - -stdout is the protocol — guaranteed by config, not by monkey-patching. The console logger writes through `console.log` to stdout, so any stdout UI/logger plugin corrupts JSON-RPC. The guarantee is config-only: the `acp-agent` example loads no stdout plugin (no console logger, no `stdio-chat`) and, if logging is wanted, uses a stderr exporter. A defensive process-wide `process.stdout.write`/`console.log` hijack inside `dsh-acp` is explicitly rejected — it lives outside Cordis' effect-scoped, HMR-friendly plugin model, races the connection's own stdout handoff, and fights the logger. A test asserts the example emits only framed JSON-RPC on stdout. - -New third-party runtime dependency plus protocol drift: `@agentclientprotocol/sdk` is young (0.25.x, recently renamed) and evolving. Pin the version and isolate churn to the one bridge package. This is not a vendoring-policy violation — [vendoring Cordis as source](../../implemented/process/2026-06-11-vendor-cordis-as-source.md) vendors the framework; genuine third-party deps already live on npm (`@earendil-works/pi-ai`). - -Turn-settle and prompt-correlation hazards: honor "queued messages batch into one turn" and "`send()` does not synchronously flip to running" (see `stdio-chat.ts` and the defensive-patterns section of [docs/architecture.md](../../../architecture.md)); gate resolution on an observed running→idle transition and handle the empty-prompt / no-work branch so an RPC can't hang. - -Permission-await and disposal hangs: a pending `request_permission` whose connection closes or whose turn aborts must settle exactly once; disposal must reach quiescence — tear each owned agent down through `AgentHandle.dispose()` (which stops the loop and awaits its exit), rather than orphaning awaits on a closed pipe. - -The 100% per-file coverage gate (repo policy) makes a branch-heavy protocol bridge real work. Accepted deliberately, surfaced so it isn't a surprise at PR time. - -ACP protocol-shape details (exact method names, `session/update` variants, permission option kinds, stop reasons) are taken from the ACP spec and the `@agentclientprotocol/sdk` types; they are not independently verifiable until the dependency is added, so the implementation pins the SDK version and conforms to its types rather than to this RFC's prose where they differ. diff --git a/docs/rfc/proposed/feature/2026-06-14-acp-multi-session.md b/docs/rfc/proposed/feature/2026-06-14-acp-multi-session.md deleted file mode 100644 index 94395a5f06..0000000000 --- a/docs/rfc/proposed/feature/2026-06-14-acp-multi-session.md +++ /dev/null @@ -1,48 +0,0 @@ -# RFC: Multiplex concurrent ACP sessions over one connection - -Status: proposed - -> **Implementation status:** implemented in full — the multi-session bridge (steps 1, 3, 4) and the bash task-ownership isolation in `packages/ui/acp` + `packages/bash/tool-bash`; per-session *permission* ownership via the bridge's answerer on [the approval seam](../../implemented/feature/2026-07-06-approval-seam.md), which resolves every permission prompt through the `agent→sessionId` reverse map to the owning editor session and delegates (fail closed) for agents the bridge does not own; and step 2's per-session disposer scope (see [agent lifecycle & ownership seams](../../implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md)) — the factory returns a per-agent `AgentHandle` whose `dispose()` stops the loop, awaits quiescence, unregisters the agent, and removes its session, so a bare client disconnect leaves no registered agent or session-store entry. Status follows [the ACP support RFC](2026-06-14-acp-agent-client-protocol.md), whose remaining deferred surface is modes/config options. - -> **Target-client note:** Zed is the current target ACP client, and its ACP client maintains a `HashMap` plus `pending_sessions` for concurrent `session/load` calls. The competing simplification to return to one live session per connection was rejected after checking that target-client shape; this RFC remains the path for finishing multiplexing and per-session permission ownership. See [the rejected simplification](../../rejected/simplification/2026-06-20-single-session-acp-bridge.md). - -## Problem - -[ACP support](2026-06-14-acp-agent-client-protocol.md) ships with a single active session per connection: a second `session/new` is rejected. Editors expect to run several conversations over one agent subprocess — a user opens multiple threads, or a client pre-warms sessions. The single-session guard is a deliberate MVP scope cut, not an architectural limit; this RFC lifts it. - -This paragraph is historical: the multi-session bridge has landed. The remaining proposed work is per-session permission ownership plus the lifecycle seams now tracked in [agent lifecycle and ownership seams](../../implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md). - -## Proposal - -The harness core already supports many agents (`AgentRegistry.list()` and `AgentLoop.create` impose no count limit), so multiplexing is a bridge-layer change in `@deepseek-ai/dsh-acp`, not a loop or core change. - -- Lift the single-session guard in `session/new`; allow N live sessions, each mapped to its own `ReactLoopAgent`. -- The bridge's `sessionId→agent` and `Session→sessionId` maps (introduced single-entry by [the ACP support RFC](2026-06-14-acp-agent-client-protocol.md)) become true multi-entry, plus a third `agent→sessionId` reverse map: the `tools/execute` permission gate receives only `exec.agent` (no sessionId), so it needs an O(1) reverse lookup to find the owning session. Every `agent/*` event and every `session/event` is demuxed strictly by id, so two sessions streaming at once never interleave their `session/update` notifications. -- Per-session prompt queues: [the ACP support RFC](2026-06-14-acp-agent-client-protocol.md)'s single-entry in-flight-prompt state becomes multi-entry — one in-flight prompt *per session*, tracked per `sessionId`. -- Per-session cancel routing: `session/cancel` cancels only its own session's agent (via the queue-aware `agent.cancel()`) and settles only that session's in-flight prompt. The cancel is scoped to that one agent — a per-agent `AbortController` for the running step plus the agent's own queued/steering FIFOs — so it never touches another session's stream or pending prompt. -- Per-session permission ownership: a `session/request_permission` and its outcome are bound to the originating session via the reverse map, so a permission prompt or a cancel in one session can never resolve another session's pending permission. - -## Plan - -1. Generalize the two id maps to multi-entry and add the `agent→sessionId` reverse map; add a per-session record holding the agent, the in-flight-prompt state, the pending-permission registry, and the session's disposer scope (see step 2). -2. Give each session a real per-session disposer scope, NOT `ctx.extend()` — in Cordis `ctx.extend()` only creates a child context/prototype, but `ctx.on()` registered on it is still owned by the current plugin fiber, so disposing it would not remove that session's listeners. Use a genuine child fiber (load a per-session sub-plugin, e.g. `ctx.plugin(...)` returning a fork, or collect each session's `ctx.on` disposers in its session record and call them on teardown). Demux every `agent/*` and `session/event` by id into the right session record. Note the single global `tools/execute` listener stays on the bridge root (it must see all agents) and routes via the reverse map. -3. Lift the `session/new` guard; keep `session/load` ([from ACP support](2026-06-14-acp-agent-client-protocol.md)) working per session. -4. Tests for cross-session isolation: two sessions streaming and permission-prompting concurrently never interleave; a cancel/abort in one session leaves the other's stream and pending permission untouched; per-session in-flight-prompt enforcement holds independently; disposing one session leaves the others running. - -## Alternatives considered - -**A per-session `ctx.extend()` scope** — rejected: in Cordis, `ctx.extend()` only creates a child context/prototype, and `ctx.on()` registered on it is still owned by the current plugin fiber, so disposing it would not remove that session's listeners. A genuine child fiber (or a per-session collection of disposers) is required. - -## Acceptance criteria - -- N concurrent sessions stream and permission-prompt without interleaving their `session/update` notifications; a cancel in one session leaves every other session's stream, queued prompts, and pending permissions untouched. -- Disposing one session removes exactly its own listeners; connection teardown reaches quiescence across all sessions. -- One session's agent cannot read or kill another session's background bash task. - -## Risks - -Listener fan-out cost: each session adds listeners; ensure disposal of one session removes exactly its own and the connection teardown ([from ACP support](2026-06-14-acp-agent-client-protocol.md)) still reaches quiescence across all sessions. - -The subtle correctness trap is cross-session leakage — a cancel or abort on one session settling another session's pending permission. The per-session permission ownership rule (routed via the `agent→sessionId` reverse map) and its isolation test are the guard. - -Shared background-task state: the bash executor's task ids are global and predictable (`bash-1`, `bash-2`, …), and `bash_output`/`bash_kill` look up by id without checking the caller. Under one session this is benign; under N sessions one session's agent could read or kill another's background task. This is a pre-existing `tool-bash` gap that multi-session turns into a real isolation hole — fixing it (validate the caller against the task owner) belongs with this RFC or a companion `tool-bash` change. diff --git a/docs/rfc/rejected/simplification/2026-06-20-single-session-acp-bridge.md b/docs/rfc/rejected/simplification/2026-06-20-single-session-acp-bridge.md index e68cd24346..8f1d4e4531 100644 --- a/docs/rfc/rejected/simplification/2026-06-20-single-session-acp-bridge.md +++ b/docs/rfc/rejected/simplification/2026-06-20-single-session-acp-bridge.md @@ -4,7 +4,7 @@ Status: rejected — Zed is the current target ACP client and its ACP implementa ## Problem -The ACP bridge now supports multiple live sessions on one JSON-RPC connection. That capability brings multi-entry session maps, reverse session/agent lookups, per-session prompt state, loading ids, demux for every event, cross-session teardown, and isolation concerns for future permission prompts and background tasks. The older [multi-session ACP proposal](../../proposed/feature/2026-06-14-acp-multi-session.md) still tracks the unfinished permission-ownership piece; this RFC is the competing simplification path. +The ACP bridge now supports multiple live sessions on one JSON-RPC connection. That capability brings multi-entry session maps, reverse session/agent lookups, per-session prompt state, loading ids, demux for every event, cross-session teardown, and isolation concerns for future permission prompts and background tasks. The older [multi-session ACP proposal](../../implemented/feature/2026-06-14-acp-multi-session.md) still tracks the unfinished permission-ownership piece; this RFC is the competing simplification path. The product target has proven it needs concurrent editor conversations over one harness process: Zed's ACP connection owns multiple sessions and load states. The snapshot replay tier still avoids concurrent model streams because its replay entries are positional; that is a test-fixture limitation, not a reason to remove bridge multiplexing. @@ -20,7 +20,7 @@ Remove the multi-session maps and demux where a single `SessionRecord | undefine - `session/new` and `session/load` reject while that record exists. - Event handlers no longer demux across a `Map`. - Multi-session tests are removed or moved under the proposal that continues to defend multiplexing. -- The existing [multi-session ACP proposal](../../proposed/feature/2026-06-14-acp-multi-session.md) is updated to link this RFC and remains the live direction. +- The existing [multi-session ACP proposal](../../implemented/feature/2026-06-14-acp-multi-session.md) is updated to link this RFC and remains the live direction. ## What we give up diff --git a/examples/README.md b/examples/README.md index f1abfd7ca8..de7a907785 100644 --- a/examples/README.md +++ b/examples/README.md @@ -35,6 +35,6 @@ Run with: `pnpm run demo:acp` (needs `DEEPSEEK_API_KEY`); `pnpm run demo:code-mo ## sandbox-acp-agent -The coding agent with its bash executor swapped for the sandbox stack ([`@deepseek-ai/dsh-sandbox-local`](../packages/sandbox/sandbox-local) + [`@deepseek-ai/dsh-bash-sandbox`](../packages/bash/bash-sandbox) — the one-entry executor swap the `ctx.bash` capability seam exists for), served over ACP with [`@deepseek-ai/dsh-approval`](../packages/approval/approval) mounted — the first composition where the approval loop is LIVE: a sandbox denial escalated by the model becomes a `session/request_permission` prompt in the editor, and "Allow once" runs exactly that command under the wider mode. +The coding agent with its bash executor swapped for the sandbox stack ([`@deepseek-ai/dsh-sandbox-local`](../packages/sandbox/sandbox-local) + [`@deepseek-ai/dsh-bash-sandbox`](../packages/bash/bash-sandbox) — the one-entry executor swap the `ctx.bash` capability seam exists for), served over ACP with [`@deepseek-ai/dsh-user-approval`](../packages/ui/user-approval) mounted — the first composition where the approval loop is LIVE: a sandbox denial escalated by the model becomes a `session/request_permission` prompt in the editor, and "Allow once" runs exactly that command under the wider mode. Run with: `pnpm run demo:sandbox-acp` (needs `DEEPSEEK_API_KEY`; bwrap, a Landlock-enforcing kernel, or macOS for confined runs). See [sandbox-acp-agent/README.md](sandbox-acp-agent/README.md). diff --git a/examples/sandbox-acp-agent/README.md b/examples/sandbox-acp-agent/README.md index ab40214834..bada288bde 100644 --- a/examples/sandbox-acp-agent/README.md +++ b/examples/sandbox-acp-agent/README.md @@ -1,6 +1,6 @@ # sandbox-acp-agent -The coding agent with its bash executor swapped for the sandbox stack ([`@deepseek-ai/dsh-sandbox-local`](../../packages/sandbox/sandbox-local/) + [`@deepseek-ai/dsh-bash-sandbox`](../../packages/bash/bash-sandbox/) — the one-entry executor swap the `ctx.bash` capability seam exists for), served over the **Agent Client Protocol**, plus [`@deepseek-ai/dsh-approval`](../../packages/approval/approval/) — which makes this the first composition where the approval loop is LIVE end to end: bash runs under `read-only`, a denial comes back as the structured marker, the model retries once with `sandbox_permissions` + `justification`, the ACP bridge's answerer turns that ask into a `session/request_permission` prompt in your editor, and "Allow once" runs exactly that command under the wider mode ([sandbox RFC § Escalation](../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)). +The coding agent with its bash executor swapped for the sandbox stack ([`@deepseek-ai/dsh-sandbox-local`](../../packages/sandbox/sandbox-local/) + [`@deepseek-ai/dsh-bash-sandbox`](../../packages/bash/bash-sandbox/) — the one-entry executor swap the `ctx.bash` capability seam exists for), served over the **Agent Client Protocol**, plus [`@deepseek-ai/dsh-user-approval`](../../packages/ui/user-approval/) — which makes this the first composition where the approval loop is LIVE end to end: bash runs under `read-only`, a denial comes back as the structured marker, the model retries once with `sandbox_permissions` + `justification`, the ACP bridge's answerer turns that ask into a `session/request_permission` prompt in your editor, and "Allow once" runs exactly that command under the wider mode ([sandbox RFC § Escalation](../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)). ```sh pnpm run demo:sandbox-acp # needs DEEPSEEK_API_KEY; drive it from Zed or any ACP client diff --git a/examples/sandbox-acp-agent/cordis.yml b/examples/sandbox-acp-agent/cordis.yml index d083e8e3f1..69ba9fb6c3 100644 --- a/examples/sandbox-acp-agent/cordis.yml +++ b/examples/sandbox-acp-agent/cordis.yml @@ -42,7 +42,7 @@ # editor. Without an editor attached nothing can answer, and every ask fails # closed. - id: approval - name: '@deepseek-ai/dsh-approval' + name: '@deepseek-ai/dsh-user-approval' # The ACP server app: the agent-core spine + JSONL persistence + the ACP # bridge (whose approval answerer completes the loop). diff --git a/examples/sandbox-acp-agent/tests/snapshots/mode-switching/session.jsonl b/examples/sandbox-acp-agent/tests/snapshots/mode-switching/session.jsonl index 97282f0c8a..617f43d3e6 100644 --- a/examples/sandbox-acp-agent/tests/snapshots/mode-switching/session.jsonl +++ b/examples/sandbox-acp-agent/tests/snapshots/mode-switching/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783613224997,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783613224997,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: cat notes.txt. Then reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783613224997,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783613224997,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/2g/b32ct0qn1d728l_v6tdkjytr0000gn/T/acp-snap-cwd-mNdf7I. Your bash tool runs under a file sandbox — a\n`[sandbox: file access denied …]` result is policy, not a command bug.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under mode]` — a policy denial, not a bug in the command; do not retry another way (a background task reports the same marker via bash_output once it has finished). Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. Attempting a command the sandbox may deny is safe and expected: run it and read the marker rather than assuming the denial. When a command IS denied and a wider mode would let it succeed, escalate immediately in the SAME turn — the ONE sanctioned exception to a denial: retry the exact same command once with `sandbox_permissions` (the narrowest wider mode that suffices) plus a one-sentence `justification`. Do not detour through chat to ask permission first — the approval prompt raised by that retry IS how the user consents. If the session states approval prompts are disabled, there is no exception: a denial is final — do not set `sandbox_permissions`. Never escalate speculatively: ground the request in a real denial — normally the one THIS command just hit; escalating up front is fine only when this session already denied the same access. A rejected escalation is final for THAT command — stop and explain, never work around it — but it does not forbid attempting or escalating other commands later.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."},"sandbox_permissions":{"type":"string","description":"The wider sandbox mode this command needs. Only valid as a one-shot retry of a command the sandbox just denied; requires justification and user approval.","enum":["workspace-write","danger-full-access"]},"justification":{"type":"string","description":"Required with sandbox_permissions: one sentence for the user explaining why this exact command needs the wider access."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783613224997,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/2g/b32ct0qn1d728l_v6tdkjytr0000gn/T/acp-snap-cwd-mNdf7I. Your bash tool runs under a file sandbox — a\n`[sandbox: file access denied …]` result is policy, not a command bug.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\n","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under mode]` — a policy denial, not a bug in the command; do not retry another way (a background task reports the same marker via bash_output once it has finished). Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. Attempting a command the sandbox may deny is safe and expected: run it and read the marker rather than assuming the denial. When a command IS denied and a wider mode would let it succeed, escalate immediately in the SAME turn — the ONE sanctioned exception to a denial: retry the exact same command once with `sandbox_permissions` (the narrowest wider mode that suffices) plus a one-sentence `justification`. Do not detour through chat to ask permission first — the approval prompt raised by that retry IS how the user consents. If the session states approval prompts are disabled, there is no exception: a denial is final — do not set `sandbox_permissions`. Never escalate speculatively: ground the request in a real denial — normally the one THIS command just hit; escalating up front is fine only when this session already denied the same access. A rejected escalation is final for THAT command — stop and explain, never work around it — but it does not forbid attempting or escalating other commands later.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."},"sandbox_permissions":{"type":"string","description":"The wider sandbox mode this command needs. Only valid as a one-shot retry of a command the sandbox just denied; requires justification and user approval.","enum":["workspace-write","danger-full-access"]},"justification":{"type":"string","description":"Required with sandbox_permissions: one sentence for the user explaining why this exact command needs the wider access."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783613225437,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783613225438,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783613225658,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} @@ -172,9 +172,9 @@ {"type":"turn/start","seq":170,"time":1783613229056,"data":{"turn":3,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"approval/policy","seq":171,"time":1783613229056,"data":{"policy":"never"}} {"type":"user/message","seq":172,"time":1783613229056,"data":{"content":[{"type":"text","text":"Without using any tools, state your current approval policy in one short sentence and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} -{"type":"context/message","seq":173,"time":1783613229057,"data":{"content":[{"type":"text","text":"The approval policy changed from \"ask\" to \"never\" (changed by the user)."}],"source":{"kind":"plugin","plugin":"approval"}},"surfaceOp":"append"} +{"type":"context/message","seq":173,"time":1783613229057,"data":{"content":[{"type":"text","text":"The approval policy changed from \"ask\" to \"never\" (changed by the user)."}],"source":{"kind":"plugin","plugin":"user-approval"}},"surfaceOp":"append"} {"type":"step/start","seq":174,"time":1783613229057,"data":{"turn":3,"step":1}} -{"type":"request/header-delta","seq":175,"time":1783613229057,"data":{"system":{"keepStart":11,"keepEnd":0,"insert":["","Approval prompts are disabled in this session: actions that require approval are rejected automatically — do not request sandbox escalation (do not set `sandbox_permissions`)."]}}} +{"type":"request/header-delta","seq":175,"time":1783613229057,"data":{"system":{"keepStart":12,"keepEnd":0,"insert":["Approval prompts are disabled in this session: actions that require approval are rejected automatically — do not request sandbox escalation (do not set `sandbox_permissions`).",""]}}} {"type":"assistant/chunk","seq":176,"time":1783613230100,"data":{"turn":3,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":177,"time":1783613230100,"data":{"turn":3,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":178,"time":1783613230192,"data":{"turn":3,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/packages/README.md b/packages/README.md index 7a389b29fa..e279aee117 100644 --- a/packages/README.md +++ b/packages/README.md @@ -13,7 +13,6 @@ Packages are grouped by modular role at `packages///`. The group dir | [`bash/`](bash/README.md) | Bash capability family: the executor seam, a local impl, and the model-facing tool | Product — stable surface | | [`code-runtime/`](code-runtime/README.md) | Code-execution capability family: the abstract runtime seam for model-written programs + a worker-thread backend | Product — stable surface | | [`sandbox/`](sandbox/README.md) | Process-confinement seam; bwrap/Landlock/Seatbelt backends | Product — stable surface | -| [`approval/`](approval/README.md) | One-shot permission decisions | Product — stable surface | | [`fs/`](fs/README.md) | Filesystem capability family: the abstract seam, a local impl, and the model-facing file tools | Product — stable surface | | [`compact/`](compact/README.md) | Compaction capability family: the abstract seam + a basic backend (tool deferred) | Product — stable surface | | [`subagent/`](subagent/README.md) | Subagent capability family: the provider-registry seam and the model-facing delegation tool | Product — stable surface | @@ -25,7 +24,7 @@ Packages are grouped by modular role at `packages///`. The group dir | [`cordis/`](cordis/README.md) | Self-referential runtime toolset: inspect the live runtime's plugins and services, mount/unmount model-written plugins ([design](../docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md)) | Product — stable surface | | [`hooks/`](hooks/README.md) | Hook bridges + the shared Claude Code / Codex wire-protocol library | Product — stable surface | | [`session-persistence/`](session-persistence/README.md) | Persistence capability family: the seam + JSONL/SQLite backends | Product — stable surface | -| [`ui/`](ui/README.md) | Editor/client integration surfaces: ACP bridge, app packages, user-interaction seam, ask-user tool | Product — stable surface | +| [`ui/`](ui/README.md) | Editor/client integration surfaces: ACP bridge, app packages, user-approval and user-interaction seams, ask-user tool | Product — stable surface | | [`support/`](support/README.md) | Dev/test/example infrastructure (invariants, replay adapter, subagent mock) | Support — lower compatibility expectations | | [`util/`](util/README.md) | Low-level zero-dependency utilities shared across groups (the `Branded` primitive) | Support — small, stable, harness-dep-free | diff --git a/packages/approval/README.md b/packages/approval/README.md deleted file mode 100644 index a228c7936f..0000000000 --- a/packages/approval/README.md +++ /dev/null @@ -1,9 +0,0 @@ -# approval/ — approval family - -The asking half of permission handling: one seam through which the harness puts a one-shot question — "may this specific action proceed?" — to whatever answerers a deployment composes, with a closed outcome vocabulary and a fail-closed default. The full design: [the approval-seam RFC](../../docs/rfc/implemented/feature/2026-07-06-approval-seam.md). All **product** packages. - -| Package | Role | ctx key | -|---|---|---| -| `approval/` | The `ApprovalService` mechanism (waterfall dispatch, cancellation, audit events) + the vocabulary (`ApprovalRequest`, `ApprovalOutcome`, `ApprovalRequestId`) + the per-session policy tier (`ApprovalPolicy` `'ask'`/`'never'`, the `'approval/policy'` event fold, the prepend gate — [sandbox RFC § Per-session mode switching](../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)) | `ctx.approval` | - -Answerers live with their owners, not here: the ACP bridge ([`ui/acp`](../ui/acp/)) answers for the editor sessions it owns (and switches each session's policy over ACP config options); tests answer with inline scripted listeners. Consumers today: [`core/tools`](../core/tools/) routes `tools/pre-execute`'s `ask` through the seam (degrading to deny when it is not mounted), and the bash tool's sandbox escalation gate ([`bash/tool-bash`](../bash/tool-bash/), [sandbox RFC § Escalation](../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)). diff --git a/packages/bash/bash-sandbox/src/index.ts b/packages/bash/bash-sandbox/src/index.ts index 7089f3c239..090d06b2fe 100644 --- a/packages/bash/bash-sandbox/src/index.ts +++ b/packages/bash/bash-sandbox/src/index.ts @@ -35,7 +35,8 @@ * `dsh-tool-bash` through `ctx.approval` — this executor's contribution is the * per-call `sandboxMode` override it honors in {@link resolve}: an escalated * call runs (and classifies, and reports) under ITS granted mode while every - * neighboring call keeps the configured default. + * neighboring call keeps its session's standing mode (or the configured + * default when that session has no override). * * @module @deepseek-ai/dsh-bash-sandbox */ @@ -138,17 +139,13 @@ function matchesSignature(exitCode: number | null, stderr: string, signatures: r /** * Sandbox-consuming bash executor. Registers as `ctx.bash` (loading it * INSTEAD OF `dsh-bash-local`, together with a `ctx.sandbox` provider, is - * the whole swap — the tool layer is untouched). The DEFAULT mode is fixed at - * config time for the executor's lifetime; a single call escalates past it - * only through the request-level `sandboxMode` override its {@link resolve} - * stamps onto the spec (granted upstream via `ctx.approval` — the - * sandbox RFC § Escalation). The model learns of the sandbox only through - * result facts: the static bash tool description explains the denial marker, - * and every run's `result.sandbox` carries the mode it executed under and how - * completely the runner enforced it. Runtime default-mode switching and a - * current-mode prompt statement are deliberately absent until a config - * surface exists to drive them (TODO(sandbox-config): the sandbox RFC's - * future-work list brings both with the per-session config options). + * the whole swap — the tool layer is untouched). Its configured mode is the + * fallback exposed by {@link sandboxMode}; `dsh-tool-bash` folds a session's + * durable `bash/sandbox-mode` override and stamps the effective mode onto each + * request, while an approved escalation may stamp a strictly wider mode for + * one call. The tool's per-agent prompt section states that same effective + * mode, and each run's `result.sandbox` reports what actually executed plus + * enforcement completeness. */ export class SandboxBashExecutor extends LocalBashExecutor { static inject = ['sandbox'] diff --git a/packages/bash/bash/src/index.ts b/packages/bash/bash/src/index.ts index 3b28756078..63c5757175 100644 --- a/packages/bash/bash/src/index.ts +++ b/packages/bash/bash/src/index.ts @@ -76,11 +76,12 @@ export abstract class BashExecutor extends Service { /** * The sandbox mode this executor confines commands under BY DEFAULT, or * `undefined` when it does not sandbox at all — the capability fact the - * tool layer reads to advertise escalation honestly (a mode-widening lever - * is only offered when a sandboxing executor is mounted to honor it, and - * only for modes strictly wider than this one). Composition truth, not - * configuration: the base class reports `undefined`; a sandboxing - * implementation overrides the getter with its configured mode. + * tool and ACP layers read to advertise sandbox controls honestly. The + * getter proves a sandboxing executor is mounted and supplies its fallback + * mode; a session override may make the effective mode narrower or wider, + * so strict escalation widening is checked per call rather than encoded in + * this default-relative capability fact. The base class reports + * `undefined`; a sandboxing implementation overrides the getter. * @returns the configured default mode of a sandboxing executor; * `undefined` for an executor that never confines. */ diff --git a/packages/bash/tool-bash/README.md b/packages/bash/tool-bash/README.md index 952550fafc..800de0132c 100644 --- a/packages/bash/tool-bash/README.md +++ b/packages/bash/tool-bash/README.md @@ -52,7 +52,7 @@ The `BashExecRequest` seam carries optional `stdin` and `env`, used by the hooks Commands run with the executor's full authority unless a sandboxing executor ([`dsh-bash-sandbox`](../bash-sandbox/)) confines them — the deny-only sandbox reports denials as result facts, rendered here as the denial marker; per-call allow/deny/ask policy is the `tools/pre-execute` waterfall (see docs/architecture.md). -On top of a denial sits the escalation gate ([the sandbox RFC § Escalation](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)): an escalating call (`sandbox_permissions` + `justification`) resolves [`ctx.approval`](../../approval/approval/README.md) BEFORE anything executes — `allowed-once` stamps the granted mode onto the bash request as the seam-level `sandboxMode` override (that one call runs, classifies, and reports under the wider mode; its neighbors keep the session's effective mode), while `rejected`/`cancelled`/`unavailable` and the no-service / no-agent paths each fail closed with their own error text and execute nothing. The seam is consumed opportunistically (`ctx.get('approval')`, the dsh-tools ask-routing pattern); the grant is consumed by the very call that asked, and nothing is stored. The static description teaches — and a denied result itself prompts, via the escalation-available marker appended exactly when the fields are advertised — the SAME-TURN flow: on a denial a wider mode would cure, retry the exact command once with `sandbox_permissions` (the narrowest mode that suffices) + `justification` immediately, without detouring through chat (the approval prompt IS the user's consent); never speculatively — an escalation is grounded in a real denial (up-front only when the session already denied the same access), a prompt-stated approvals-disabled policy turns the exception off entirely, and a rejected escalation is final for that command. +On top of a denial sits the escalation gate ([the sandbox RFC § Escalation](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)): an escalating call (`sandbox_permissions` + `justification`) resolves [`ctx.approval`](../../ui/user-approval/README.md) BEFORE anything executes — `allowed-once` stamps the granted mode onto the bash request as the seam-level `sandboxMode` override (that one call runs, classifies, and reports under the wider mode; its neighbors keep the session's effective mode), while `rejected`/`cancelled`/`unavailable` and the no-service / no-agent paths each fail closed with their own error text and execute nothing. The seam is consumed opportunistically (`ctx.get('approval')`, the dsh-tools ask-routing pattern); the grant is consumed by the very call that asked, and nothing is stored. The static description teaches — and a denied result itself prompts, via the escalation-available marker appended exactly when the fields are advertised — the SAME-TURN flow: on a denial a wider mode would cure, retry the exact command once with `sandbox_permissions` (the narrowest mode that suffices) + `justification` immediately, without detouring through chat (the approval prompt IS the user's consent); never speculatively — an escalation is grounded in a real denial (up-front only when the session already denied the same access), a prompt-stated approvals-disabled policy turns the exception off entirely, and a rejected escalation is final for that command. ## Per-session mode switching diff --git a/packages/bash/tool-bash/package.json b/packages/bash/tool-bash/package.json index bd8f8c1aea..eec5d79ccb 100644 --- a/packages/bash/tool-bash/package.json +++ b/packages/bash/tool-bash/package.json @@ -23,7 +23,7 @@ "license": "BSD-3-Clause", "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", - "@deepseek-ai/dsh-approval": "^0.0.1", + "@deepseek-ai/dsh-user-approval": "^0.0.1", "@deepseek-ai/dsh-bash": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-sandbox": "^0.0.1", @@ -34,7 +34,7 @@ "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-agent-loop": "workspace:^", - "@deepseek-ai/dsh-approval": "workspace:^", + "@deepseek-ai/dsh-user-approval": "workspace:^", "@deepseek-ai/dsh-bash": "workspace:^", "@deepseek-ai/dsh-bash-local": "workspace:^", "@deepseek-ai/dsh-bash-sandbox": "workspace:^", diff --git a/packages/bash/tool-bash/src/index.ts b/packages/bash/tool-bash/src/index.ts index 3b30e37057..31e6512ae0 100644 --- a/packages/bash/tool-bash/src/index.ts +++ b/packages/bash/tool-bash/src/index.ts @@ -65,7 +65,7 @@ import type {} from '@deepseek-ai/dsh-system-prompt' // Side-effect type import: declaration-merges `ctx.approval`, consumed // opportunistically by the escalation gate (`ctx.get('approval')` — the seam // stays optional at runtime, same pattern as dsh-tools' ask routing). -import type {} from '@deepseek-ai/dsh-approval' +import type {} from '@deepseek-ai/dsh-user-approval' import type { SandboxMode } from '@deepseek-ai/dsh-sandbox' import { BashTaskId, OwnerToken, effectiveSandboxMode } from '@deepseek-ai/dsh-bash' import type { BashRunResult, BashTask, CollectedOutput } from '@deepseek-ai/dsh-bash' @@ -471,12 +471,12 @@ export function apply(ctx: Context): void { } }) - // The escalation surface exists exactly when the mounted executor confines - // under a default that has a strictly wider mode to escalate to — a lever - // is never advertised that the composition cannot honor. Registration time - // is the right read: the executor's default is config-fixed for its - // lifetime, and an executor swap restarts this fiber (static inject) and - // re-registers the schema. + // The escalation surface exists whenever the mounted executor confines. + // Its enum is the closed target vocabulary, deliberately NOT cut down by + // the configured default: a session may switch to a narrower effective mode + // while sharing this globally registered schema. Strict widening therefore + // belongs to the per-call check below. An executor swap restarts this fiber + // (static inject) and re-registers the schema. const defaultMode = ctx.bash.sandboxMode const escalationModes: readonly SandboxMode[] = defaultMode === undefined ? [] : ESCALATION_TARGETS @@ -505,8 +505,7 @@ export function apply(ctx: Context): void { */ const approveEscalation = async (mode: string, justification: string, exec: ToolExecution): Promise => { // Schema validation only checks ADVERTISED keys, so an unadvertised - // `sandbox_permissions` (no sandboxing executor, or a `danger-full-access` - // default with nothing wider) still reaches execute — reject it here so a + // `sandbox_permissions` (no sandboxing executor) still reaches execute — reject it here so a // human is never prompted to "escalate" a sandbox that is not there. When // the fields ARE advertised, the registry's SchemaSpec enum has already // pinned `mode` to this ladder for every caller. @@ -540,8 +539,8 @@ export function apply(ctx: Context): void { ...exec.signal ? { signal: exec.signal } : {}, }) switch (outcome) { - // The SchemaSpec enum already pinned `mode` to this executor's wider - // ladder; the cast records that validated fact. + // The SchemaSpec enum already pinned `mode` to the closed target + // vocabulary; the per-call check above proved it is strictly wider. case 'allowed-once': return mode as SandboxMode case 'rejected': throw new Error(`the user rejected escalating this command to "${mode}"`) case 'cancelled': throw new Error(`approval for escalating to "${mode}" was cancelled`) diff --git a/packages/bash/tool-bash/tests/tools.spec.ts b/packages/bash/tool-bash/tests/tools.spec.ts index 4988713425..9bc5cf2690 100644 --- a/packages/bash/tool-bash/tests/tools.spec.ts +++ b/packages/bash/tool-bash/tests/tools.spec.ts @@ -16,8 +16,8 @@ import { SandboxBashExecutor } from '@deepseek-ai/dsh-bash-sandbox' import { SandboxProvider } from '@deepseek-ai/dsh-sandbox' import type { ConfinedArgv } from '@deepseek-ai/dsh-sandbox' import { LocalSandboxProvider } from '@deepseek-ai/dsh-sandbox-local' -import ApprovalService from '@deepseek-ai/dsh-approval' -import type { ApprovalOutcome } from '@deepseek-ai/dsh-approval' +import ApprovalService from '@deepseek-ai/dsh-user-approval' +import type { ApprovalOutcome } from '@deepseek-ai/dsh-user-approval' import * as ToolBash from '@deepseek-ai/dsh-tool-bash' import { renderResult } from '@deepseek-ai/dsh-tool-bash' @@ -27,6 +27,13 @@ const spillDir = mkdtempSync(join(tmpdir(), 'dsh-tool-bash-spec-')) // profile args up to `--` and execs the command unconfined — deterministic // without a host bwrap. const PASSTHROUGH_RUNNER = ['bash', '-c', 'while [ "$1" != "--" ]; do shift; done; shift; exec "$@"', 'passthrough-runner'] +const PASSTHROUGH_RUNNER_CONFIG = { + runnerCommand: PASSTHROUGH_RUNNER, + // The script has no pre-exec failure path; the provider still requires an + // explicit dialect so a future script change cannot silently turn runner + // failure into an ordinary command result. + runnerFailureSignatures: ['passthrough-runner: profile rejected'], +} async function setup() { const ctx = new Context() @@ -1022,7 +1029,7 @@ describe('sandbox rendering', () => { await ctx.plugin(SystemPrompt) await ctx.plugin(ToolRegistry) await ctx.plugin(AgentRegistry) - await ctx.plugin(LocalSandboxProvider, { runnerCommand: PASSTHROUGH_RUNNER }) + await ctx.plugin(LocalSandboxProvider, PASSTHROUGH_RUNNER_CONFIG) await ctx.plugin(SandboxBashExecutor, { graceMs: 200 }) const bash = ctx.bash as SandboxBashExecutor bash.internals = { spillDir } @@ -1113,12 +1120,31 @@ describe('sandbox rendering', () => { expect(text(read)).not.toContain('file access denied') }) + it('classifies an executable configured runner that refuses its profile before the command runs', async () => { + const signature = 'custom-runner-rejected' + const ctx = new Context() + await ctx.plugin(LocalSandboxProvider, { + runnerCommand: ['bash', '-c', `printf '${signature}\\n' >&2; exit 125`, 'custom-runner'], + runnerFailureSignatures: [signature], + }) + await ctx.plugin(SandboxBashExecutor, { graceMs: 200 }) + const bash = ctx.bash as SandboxBashExecutor + bash.internals = { spillDir } + + await expect(bash.run(bash.resolve({ command: 'echo command-must-not-run' }))) + .rejects.toMatchObject({ code: 'SANDBOX_UNAVAILABLE' }) + + const task = bash.start(bash.resolve({ command: 'echo command-must-not-run' })) + await task.done + expect(task.sandbox).toEqual({ mode: 'read-only', denied: false, enforcement: 'full', runnerFailed: true }) + }) + it('reports a real denial end-to-end through the shipping sandbox executor', async () => { const ctx = new Context() await ctx.plugin(SystemPrompt) await ctx.plugin(ToolRegistry) await ctx.plugin(AgentRegistry) - await ctx.plugin(LocalSandboxProvider, { runnerCommand: PASSTHROUGH_RUNNER }) + await ctx.plugin(LocalSandboxProvider, PASSTHROUGH_RUNNER_CONFIG) await ctx.plugin(SandboxBashExecutor, { graceMs: 200 }) const bash = ctx.bash as SandboxBashExecutor bash.internals = { spillDir } @@ -1141,7 +1167,7 @@ describe('sandbox escalation (sandbox_permissions / justification)', () => { await ctx.plugin(SystemPrompt) await ctx.plugin(ToolRegistry) await ctx.plugin(AgentRegistry) - await ctx.plugin(LocalSandboxProvider, { runnerCommand: PASSTHROUGH_RUNNER }) + await ctx.plugin(LocalSandboxProvider, PASSTHROUGH_RUNNER_CONFIG) await ctx.plugin(SandboxBashExecutor, { graceMs: 200, ...mode !== undefined ? { mode } : {} }) const bash = ctx.bash as SandboxBashExecutor bash.internals = { spillDir } @@ -1363,7 +1389,7 @@ describe('per-session sandbox mode (the bash/sandbox-mode fold)', () => { await ctx.plugin(SystemPrompt) await ctx.plugin(ToolRegistry) await ctx.plugin(AgentRegistry) - await ctx.plugin(LocalSandboxProvider, { runnerCommand: PASSTHROUGH_RUNNER }) + await ctx.plugin(LocalSandboxProvider, PASSTHROUGH_RUNNER_CONFIG) await ctx.plugin(SandboxBashExecutor, { graceMs: 200, mode }) ;(ctx.bash as SandboxBashExecutor).internals = { spillDir } if (opts.approval === true) await ctx.plugin(ApprovalService) diff --git a/packages/bash/tool-bash/tsconfig.json b/packages/bash/tool-bash/tsconfig.json index 6f70e81873..c4d738c7dd 100644 --- a/packages/bash/tool-bash/tsconfig.json +++ b/packages/bash/tool-bash/tsconfig.json @@ -30,7 +30,7 @@ "path": "../../core/system-prompt" }, { - "path": "../../approval/approval" + "path": "../../ui/user-approval" }, { "path": "../../sandbox/sandbox" diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index dde232a626..0bf1c4bf08 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -38,7 +38,7 @@ tools: - `ToolDefinition` — `ToolSchema` + `execute(args, exec): Promise` (the bare array is the model-facing content; the object form additionally attaches an opaque, JSON-serializable `meta` presentation payload persisted on the `tool/result` event and handed back to `presentResult`), plus optional `presentCall(args)` / `presentResult(args, result)` for tool-owned UI presentation (see below). It also carries an optional cooperative timeout budget `timeoutMs?: number` (ms) enforced by `@deepseek-ai/dsh-timeout-policy`, never sent to the model. - `ToolExecution` — one pending tool call: `{ callId, name, arguments, agent?, signal? }`. - `ToolExecutionResult` — outcome: `{ callId, content, isError, error?, additionalContext?, meta? }`. On failure with a `HarnessError`, `error: { name, code }` carries the structured failure class alongside the model-facing text (the loop forwards it onto the `tool/result` session event for retry/sandbox plugins and replay). `additionalContext` (a `HookContext`) ferries any `tools/post-execute` context up to the loop, which buffers it and appends it as a `context/message` after all `tool/result`s in the step. `meta` is the tool's opaque presentation payload from a successful `execute` (the object return form); the loop forwards it onto the `tool/result` session event for result-card rendering. -- `PreToolDecision` — `{kind:'allow'}` | `{kind:'deny', reason}` | `{kind:'ask', reason?}`. Input rewrite (changing `arguments`) is deliberately NOT offered (it would desync the pre-execution audit/history/UI from what ran — its own proposed RFC); `ask` is serviced by [`ctx.approval`](../../approval/approval/README.md) when a deployment mounts it (`allowed-once` proceeds to dispatch; `rejected`/`cancelled`/`unavailable` deny with distinct reasons) and degrades to `deny` when none is mounted or the execution carries no agent. +- `PreToolDecision` — `{kind:'allow'}` | `{kind:'deny', reason}` | `{kind:'ask', reason?}`. Input rewrite (changing `arguments`) is deliberately NOT offered (it would desync the pre-execution audit/history/UI from what ran — its own proposed RFC); `ask` is serviced by [`ctx.approval`](../../ui/user-approval/README.md) when a deployment mounts it (`allowed-once` proceeds to dispatch; `rejected`/`cancelled`/`unavailable` deny with distinct reasons) and degrades to `deny` when none is mounted or the execution carries no agent. - `PostToolDecision` — `{kind:'accept', content?, additionalContext?}` (keep the call successful, optionally replacing the model-facing content) | `{kind:'block', feedback, additionalContext?}` (turn it into an `isError` whose content is the corrective feedback). Output replacement is clean because `tool/result` is logged AFTER `execute()` returns. - `ToolCallView` / `ToolResultView` — provider-neutral `card`-tagged render intents a tool returns from `presentCall` / `presentResult` to own how a UI renders ITS calls (see "Tool-owned UI presentation"). diff --git a/packages/core/tools/package.json b/packages/core/tools/package.json index aafd87385f..ff38e40ab2 100644 --- a/packages/core/tools/package.json +++ b/packages/core/tools/package.json @@ -23,7 +23,7 @@ "license": "BSD-3-Clause", "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", - "@deepseek-ai/dsh-approval": "^0.0.1", + "@deepseek-ai/dsh-user-approval": "^0.0.1", "@deepseek-ai/dsh-code-runtime": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-session": "^0.0.1", @@ -35,7 +35,7 @@ }, "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", - "@deepseek-ai/dsh-approval": "workspace:^", + "@deepseek-ai/dsh-user-approval": "workspace:^", "@deepseek-ai/dsh-code-runtime": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-session": "workspace:^", diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index 20f32ec97d..b624f468bb 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -25,7 +25,7 @@ import type {} from '@deepseek-ai/dsh-system-prompt' import type { CodeRuntime } from '@deepseek-ai/dsh-code-runtime' // Type-only: makes `ctx.get('approval')` resolve to the ApprovalService // augmentation. The seam stays optional at runtime — see `serviceAsk`. -import type {} from '@deepseek-ai/dsh-approval' +import type {} from '@deepseek-ai/dsh-user-approval' import type { ToolCallView, ToolResultView } from './presentation.ts' import { createRunCodeTool, RUN_CODE_NAME, SDK_SECTION_ORDER } from './code-mode.ts' import { renderToolsSdk } from './ts-types.ts' diff --git a/packages/core/tools/tests/tools.spec.ts b/packages/core/tools/tests/tools.spec.ts index 6b59d96eb7..ca0ab58206 100644 --- a/packages/core/tools/tests/tools.spec.ts +++ b/packages/core/tools/tests/tools.spec.ts @@ -3,7 +3,7 @@ import { Context } from 'cordis' import { CallId, HarnessError } from '@deepseek-ai/dsh-llm' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import type { Agent } from '@deepseek-ai/dsh-agent' -import ApprovalService, { type ApprovalOutcome, type ApprovalRequest } from '@deepseek-ai/dsh-approval' +import ApprovalService, { type ApprovalOutcome, type ApprovalRequest } from '@deepseek-ai/dsh-user-approval' import ToolRegistry, { defineTool, schemaSpecToJsonSchema, validateArgs, ToolArgsError, ToolNotFoundError, type InferArgs, type SchemaSpec, type PreToolDecision, type PostToolDecision, diff --git a/packages/core/tools/tsconfig.json b/packages/core/tools/tsconfig.json index 19e17e950f..95835b38e9 100644 --- a/packages/core/tools/tsconfig.json +++ b/packages/core/tools/tsconfig.json @@ -30,7 +30,7 @@ "path": "../../core/agent" }, { - "path": "../../approval/approval" + "path": "../../ui/user-approval" } ] } diff --git a/packages/sandbox/sandbox-local/src/index.ts b/packages/sandbox/sandbox-local/src/index.ts index 2a75a16d2d..66f3077319 100644 --- a/packages/sandbox/sandbox-local/src/index.ts +++ b/packages/sandbox/sandbox-local/src/index.ts @@ -41,7 +41,9 @@ export interface Config { * `enforcement: 'full'`, and — the runner's kernel mechanism being unknown * — carries both Linux file-denial dialects as its denial signatures) — * the runner chain and its probes are skipped, - * and a broken runner fails loudly at spawn time like any missing command. + * and a broken runner fails loudly at execution time. The operator also + * supplies {@link runnerFailureSignatures}, which distinguish the runner + * refusing its profile from the wrapped command failing normally. * Absent (or empty — the schema normalizes an omitted array to `[]`): the * built-in platform chains — Linux `bwrap` then the Landlock launcher * (probed in that order), darwin `sandbox-exec` (the sole candidate, @@ -49,6 +51,15 @@ export interface Config { * for deterministic fake runners in keyless test tiers. */ runnerCommand?: string[] + /** + * Case-insensitive stderr substrings emitted when a configured + * {@link runnerCommand} refuses its profile before executing the wrapped + * command. Required and non-empty with `runnerCommand`; rejected without + * it. Missing/unexecutable runner errors are added automatically from + * `runnerCommand[0]`, while these signatures cover an executable runner's + * own failure dialect. + */ + runnerFailureSignatures?: string[] /** * Per-probe timeout in milliseconds for the chain's functional probes * (default: 5000; must be a positive finite number — Node treats a 0 @@ -309,6 +320,7 @@ export class LocalSandboxProvider extends SandboxProvider { // Inline schema call: the config catalog walks `static Config` statically. static Config: z = z.object({ runnerCommand: z.array(z.string()).default([]), + runnerFailureSignatures: z.array(z.string()).default([]), probeTimeoutMs: z.natural().default(5_000), }) @@ -316,17 +328,29 @@ export class LocalSandboxProvider extends SandboxProvider { internals: SandboxInternals = {} private readonly runnerCommand: string[] | undefined + private readonly configuredRunnerFailureSignatures: string[] private readonly probeTimeoutMs: number /** Cached chain verdict; undefined until the first confined wrap needs it. */ private selectedRunner: SelectedRunner | 'unavailable' | undefined constructor(ctx: Context, config: Config) { super(ctx) - // The schema (static Config) defaults both fields — the casts record + // The schema (static Config) defaults every field — the casts record // those runtime facts. An empty runnerCommand means "not configured": // use the platform chain. const runner = config.runnerCommand as string[] + const runnerFailureSignatures = config.runnerFailureSignatures as string[] + if (runner.length === 0 && runnerFailureSignatures.length > 0) { + throw new Error('sandbox-local: runnerFailureSignatures requires runnerCommand') + } + if (runner.length > 0 && runnerFailureSignatures.length === 0) { + throw new Error('sandbox-local: runnerCommand requires at least one runnerFailureSignatures entry') + } + if (runnerFailureSignatures.some(signature => signature.trim().length === 0)) { + throw new Error('sandbox-local: runnerFailureSignatures entries must be non-empty') + } this.runnerCommand = runner.length > 0 ? runner : undefined + this.configuredRunnerFailureSignatures = runnerFailureSignatures this.probeTimeoutMs = config.probeTimeoutMs as number assertPositiveFinite('probeTimeoutMs', this.probeTimeoutMs) } @@ -351,17 +375,16 @@ export class LocalSandboxProvider extends SandboxProvider { argv: [...this.runnerCommand, ...bwrapProfileArgs(policy), '--', ...argv], enforcement: 'full', denialSignatures: DENIAL_SIGNATURES.runnerCommand, - // The configured runner's own failure dialect is unknown (as is its - // kernel mechanism), but the consumer never spawns the wrap directly - // — it re-joins it through an outer `bash -c 'exec …'` — so a - // missing or unexecutable runner fails with the OUTER shell's - // argv0-scoped shapes, and those we do know. Scoping every shape to + // The operator names the configured runner's OWN pre-exec refusal + // dialect; the consumer additionally re-joins the wrap through an + // outer `bash -c 'exec …'`, so we can add the missing/unexecutable + // outer-shell shapes ourselves. Scoping every automatic shape to // argv0 keeps in-command errors out (a bare `exec:`/`Permission - // denied` prefix would claim tool output; `exec: : not - // found` cannot). The residual collision — a command invoking a - // file named exactly like the runner and hitting the same errno — - // is the classifier's documented conservative-inference trade. + // denied` prefix would claim tool output; `exec: : not found` + // cannot). The residual text-collision trade is documented by the + // seam's conservative classifier contract. runnerFailureSignatures: [ + ...this.configuredRunnerFailureSignatures, `exec: ${argv0}: not found`, `${argv0}: No such file or directory`, `${argv0}: Permission denied`, diff --git a/packages/sandbox/sandbox-local/tests/local.spec.ts b/packages/sandbox/sandbox-local/tests/local.spec.ts index d12f4970cb..852a50e1e9 100644 --- a/packages/sandbox/sandbox-local/tests/local.spec.ts +++ b/packages/sandbox/sandbox-local/tests/local.spec.ts @@ -102,7 +102,10 @@ describe('runnerCommand config', () => { const probeBwrap = vi.fn(() => false) const probeLandlock = vi.fn(() => 'unusable' as const) const probeSeatbelt = vi.fn(() => false) - const { sandbox } = await setup({ runnerCommand: ['fake-runner', '--flag'] }, { probeBwrap, probeLandlock, probeSeatbelt }) + const { sandbox } = await setup({ + runnerCommand: ['fake-runner', '--flag'], + runnerFailureSignatures: ['fake-runner: profile rejected'], + }, { probeBwrap, probeLandlock, probeSeatbelt }) const confined = sandbox.confine(['bash', '-c', 'echo hi'], WW) expect(confined).toEqual({ argv: ['fake-runner', '--flag', ...bwrapProfileArgs(WW), '--', 'bash', '-c', 'echo hi'], @@ -115,6 +118,7 @@ describe('runnerCommand config', () => { // unexecutable runner fails with the OUTER shell's argv0-scoped // shapes, and those classify as sandbox failures like any rung. runnerFailureSignatures: [ + 'fake-runner: profile rejected', 'exec: fake-runner: not found', 'fake-runner: No such file or directory', 'fake-runner: Permission denied', @@ -131,6 +135,24 @@ describe('runnerCommand config', () => { expect(() => sandbox.confine(['true'], RO)).toThrow(SandboxUnavailableError) expect(probeBwrap).toHaveBeenCalledTimes(1) }) + + it('requires an operator-owned failure dialect for every configured runner', async () => { + await expect(setup({ runnerCommand: ['fake-runner'] })).rejects.toThrow( + 'runnerCommand requires at least one runnerFailureSignatures entry', + ) + }) + + it('rejects runner failure signatures when no custom runner consumes them', async () => { + await expect(setup({ runnerFailureSignatures: ['profile rejected'] })).rejects.toThrow( + 'runnerFailureSignatures requires runnerCommand', + ) + }) + + it('rejects blank configured-runner failure signatures', async () => { + await expect(setup({ runnerCommand: ['fake-runner'], runnerFailureSignatures: [' '] })).rejects.toThrow( + 'runnerFailureSignatures entries must be non-empty', + ) + }) }) describe('the platform chains', () => { diff --git a/packages/ui/README.md b/packages/ui/README.md index e87a5e4a10..604eff6521 100644 --- a/packages/ui/README.md +++ b/packages/ui/README.md @@ -5,6 +5,7 @@ Integrations that expose the agent to an external editor or client. These are ** | Package | Role | ctx key | |---|---|---| | `acp/` | Agent Client Protocol bridge: serves the agent to an ACP editor (Zed) over JSON-RPC stdio | (drives `ctx.agents`/`ctx.sessions`) | +| `user-approval/` | One-shot user-approval mechanism, closed outcome vocabulary, audit events, and per-session approval policy | `ctx.approval` | | `user-interaction/` | Abstract human question/answer seam used by UI-backed confirmation tools | `ctx.userInteraction` | | `tool-ask-user/` | Model-facing `ask_user_question` tool over `ctx.userInteraction` | (registers on `ctx.tools`) | | `stdio-agent/` | Terminal stdio chat APP: the agent-core spine + console logger + readline UI + a pre-created `main` agent, with a `bin` | (composition + `bin`) | @@ -13,6 +14,6 @@ Integrations that expose the agent to an external editor or client. These are ** A UI integration is a client-driver plugin, not a loop change and not a capability seam: it consumes the existing `agent/*` event taxonomy and the `dsh-agent` factory. The readline UI is the unstructured analogue of the `acp` bridge and lives INSIDE the stdio app (the `stdio-chat` module of [`stdio-agent/`](stdio-agent/README.md)): it is scaffolding for that one front door, not an independently swappable integration, so it carries no package boundary of its own. -`user-interaction` and `tool-ask-user` live here because asking a human is a UI-backed product affordance, not part of the providerless core spine. The seam remains provider-neutral (`ctx.userInteraction`), while the tool is the model-facing consumer and the app/bridge packages provide concrete providers. +`user-approval`, `user-interaction`, and `tool-ask-user` live here because asking a human is a UI-backed product affordance, not part of the providerless core spine. `user-approval` owns the one-shot `ctx.approval` decision mechanism and its policy tier; answerers remain with their UI channel owners. `user-interaction` remains provider-neutral (`ctx.userInteraction`), while `tool-ask-user` is its model-facing consumer and the app/bridge packages provide concrete providers. `stdio-agent` and `acp-agent` are the two **app packages**: each composes the [`core/agent-core`](../core/agent-core/README.md) spine with its coupled front-door cluster (and owns the boot `bin`), so a leaf `cordis.yml` is the swappable backends plus one app entry plus any optional product tools. They live in `ui/` because each IS a user-facing front door; the stdout-purity coupling (logger vs. no logger) becomes a property of the artifact rather than a leaf convention. diff --git a/packages/ui/acp/README.md b/packages/ui/acp/README.md index 1a547d3e4a..2f1f35adc4 100644 --- a/packages/ui/acp/README.md +++ b/packages/ui/acp/README.md @@ -1,6 +1,6 @@ # @deepseek-ai/dsh-acp -The **Agent Client Protocol (ACP)** bridge: exposes DeepSeek Harness SDK agents as an ACP server over JSON-RPC stdio, so editors (Zed and other ACP clients) can drive them — streaming render, tool-call display, and resumable sessions. Zed is the current target client: baseline ACP behavior should remain reasonable for other clients, but bridge capabilities and compatibility decisions are evaluated against Zed first. **N concurrent sessions per connection** (see [ACP multi-session](../../../docs/rfc/proposed/feature/2026-06-14-acp-multi-session.md)): each maps to its own `ReactLoopAgent`, and every event is demuxed strictly by session id so two sessions streaming at once never interleave. +The **Agent Client Protocol (ACP)** bridge: exposes DeepSeek Harness SDK agents as an ACP server over JSON-RPC stdio, so editors (Zed and other ACP clients) can drive them — streaming render, tool-call display, and resumable sessions. Zed is the current target client: baseline ACP behavior should remain reasonable for other clients, but bridge capabilities and compatibility decisions are evaluated against Zed first. **N concurrent sessions per connection** (see [ACP multi-session](../../../docs/rfc/implemented/feature/2026-06-14-acp-multi-session.md)): each maps to its own `ReactLoopAgent`, and every event is demuxed strictly by session id so two sessions streaming at once never interleave. It is a **client-driver / UI plugin**, the structured analogue of the readline `stdio-chat` plugin — NOT a loop change and NOT a [capability seam](../../../docs/rfc/implemented/architecture/2026-06-13-capability-seams.md). It consumes the existing `agent/*` event taxonomy, the `dsh-agent` create/resume factory, and `dsh-session-persistence`. @@ -31,7 +31,7 @@ The `initialize` handshake reports a fixed server identity (`agentInfo: { name: | `session/cancel` | `agent.cancel()` | the queue-aware cancel: aborts a running step, clears queued + steering work, and drops a turn about to start, then settles the prompt `cancelled` — for ONLY that session (a cancel never touches another session's stream or prompt) | | `session/update` | `session/event` | `agent_message_chunk` (text-delta), `agent_thought_chunk` (reasoning-delta), `user_message_chunk` (load replay), `tool_call`/`tool_call_update` (the render intent — a `card`-tagged `ToolCallView`/`ToolResultView` — owned by the TOOL via `presentCall`/`presentResult`, which the bridge switches on to build the wire shape — see Tool-call presentation) | | `elicitation/create` | `ctx.userInteraction.ask()` | maps `ask_user_question` questions to ACP form elicitations; option descriptions are shown in enum titles, `multi_select` uses ACP array enums, optionless requests use a required `custom` field, and a non-empty custom answer overrides any selected choice | -| `session/request_permission` | `approval/request` listener | the bridge is the [`ctx.approval`](../../approval/approval/README.md) answerer for the agents it owns: an `ask` (a hook or `tools/pre-execute` plugin) becomes an editor prompt attached to the streamed tool call, offering one-shot `allow_once`/`reject_once` options only; a foreign or call-less request delegates down the answerer chain (fail-closed `unavailable` default). See "Permission prompts" | +| `session/request_permission` | `approval/request` listener | the bridge is the [`ctx.approval`](../user-approval/README.md) answerer for the agents it owns: an `ask` (a hook or `tools/pre-execute` plugin) becomes an editor prompt attached to the streamed tool call, offering one-shot `allow_once`/`reject_once` options only; a foreign or call-less request delegates down the answerer chain (fail-closed `unavailable` default). See "Permission prompts" | | `session/set_config_option` | `setSandboxMode` / `setApprovalPolicy` | per-session knob switching over [session config options](https://agentclientprotocol.com/protocol/session-config-options) — see "Session config options" | ## Multi-session @@ -75,7 +75,7 @@ A `session/prompt` resolves (or rejects) exactly once, keyed off the canonical s ## Permission prompts -The bridge registers an `approval/request` waterfall listener — the ACP answerer of the [approval seam](../../approval/approval/README.md). When `ctx.approval` routes an `ask` for an agent the bridge owns, the listener resolves the owning session through the reverse map and issues `session/request_permission` with the request's `callId` as the `toolCall` reference (the editor attaches the prompt to the already-streamed call) and the one-shot options `allow_once`/`reject_once` (`allow_always` is deferred to the approval RFC's grant-storage question). Outcomes map `allow-once → allowed-once`, any other selection → `rejected` (an unknown optionId from a non-conforming client never grants), client `cancelled → cancelled`. A request for an agent the bridge does NOT own — or one without a `callId` to attach to — delegates via `next()` so another answerer or the seam's fail-closed `unavailable` default takes it. A rejected `requestPermission` RPC (client gone mid-prompt) propagates to the ApprovalService, which contains it as `unavailable`. Whether a call asks at all is policy — a hook or `tools/pre-execute` plugin returning `ask` — never the bridge's own judgment; without such policy, tools keep the executor's full authority. +The bridge registers an `approval/request` waterfall listener — the ACP answerer of the [user-approval seam](../user-approval/README.md). When `ctx.approval` routes an `ask` for an agent the bridge owns, the listener resolves the owning session through the reverse map and issues `session/request_permission` with the request's `callId` as the `toolCall` reference (the editor attaches the prompt to the already-streamed call) and the one-shot options `allow_once`/`reject_once` (`allow_always` is deferred to the approval RFC's grant-storage question). Outcomes map `allow-once → allowed-once`, any other selection → `rejected` (an unknown optionId from a non-conforming client never grants), client `cancelled → cancelled`. A request for an agent the bridge does NOT own — or one without a `callId` to attach to — delegates via `next()` so another answerer or the seam's fail-closed `unavailable` default takes it. A rejected `requestPermission` RPC (client gone mid-prompt) propagates to the ApprovalService, which contains it as `unavailable`. Whether a call asks at all is policy — a hook or `tools/pre-execute` plugin returning `ask` — never the bridge's own judgment; without such policy, tools keep the executor's full authority. ## Disposal & disconnect @@ -87,7 +87,7 @@ Teardown reaches quiescence: for EVERY live session settle any pending prompt as ## stdout is the protocol -The JSON-RPC frames go on stdout, so this plugin MUST run in an example that loads **no stdout logger** (the console logger writes to stdout and would corrupt the frames). The guarantee is config-only — see `examples/acp-agent` (no console logger) and [ACP support risks](../../../docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md#risks). A stderr exporter is fine for logging. +The JSON-RPC frames go on stdout, so this plugin MUST run in an example that loads **no stdout logger** (the console logger writes to stdout and would corrupt the frames). The guarantee is config-only — see `examples/acp-agent` (no console logger) and [ACP support risks](../../../docs/rfc/implemented/feature/2026-06-14-acp-agent-client-protocol.md#risks). A stderr exporter is fine for logging. ## Running diff --git a/packages/ui/acp/acp-feature-support.md b/packages/ui/acp/acp-feature-support.md index eb2d5a8fa5..be14fe6237 100644 --- a/packages/ui/acp/acp-feature-support.md +++ b/packages/ui/acp/acp-feature-support.md @@ -10,7 +10,7 @@ Legend: ✅ supported · ⚠️ partial / fallback · ❌ not yet · — n/a. Th ## At a glance -The bridge implements the **core prompt-turn loop** for N concurrent sessions: initialize, session new/load, prompt, cancel, streamed assistant/thought chunks, tool-call rendering (including Zed terminal cards), and resumable session replay. The largest **unbuilt** areas are the **permission gate** (`session/request_permission`), **MCP passthrough**, **session modes / config options / model selection**, **slash commands**, and **agent plans** — all of which both reference adapters ship — plus the client **filesystem** and **terminal** method families (which the adapters mostly do NOT drive either — see rows 43-49). See [Gap summary](#gap-summary). +The bridge implements the **core prompt-turn loop** for N concurrent sessions: initialize, session new/load, prompt, cancel, streamed assistant/thought chunks, tool-call rendering (including Zed terminal cards), resumable session replay, one-shot permission prompts, and per-session sandbox/approval config options. The largest **unbuilt** areas are **MCP passthrough**, runtime model selection, **slash commands**, and **agent plans**, plus the client **filesystem** and **terminal** method families (which the adapters mostly do NOT drive either — see rows 43-49). See [Gap summary](#gap-summary). ## 1. Agent methods (client → agent) @@ -39,7 +39,7 @@ These are capabilities the bridge would *drive* on the editor. The harness runs | Method | Stable | Bridge | Claude | Codex | Notes | |---|---|---|---|---|---| | `session/update` | S | ✅ | ✅ | ✅ | The bridge's primary output channel (see [§4](#4-sessionupdate-variants)). | -| `session/request_permission` | S | ✅ | ✅ | ✅ | The bridge answers the [`ctx.approval`](../../approval/approval/README.md) seam for the agents it owns: an `ask` from a hook/plugin becomes an editor prompt attached to the streamed tool call, one-shot `allow_once`/`reject_once` options only. Whether a call asks is policy (nothing asks by default); `allow_always` is deferred (grant storage). | +| `session/request_permission` | S | ✅ | ✅ | ✅ | The bridge answers the [`ctx.approval`](../user-approval/README.md) seam for the agents it owns: an `ask` from a hook/plugin becomes an editor prompt attached to the streamed tool call, one-shot `allow_once`/`reject_once` options only. Whether a call asks is policy (nothing asks by default); `allow_always` is deferred (grant storage). | | `fs/read_text_file` | S | ❌ | ✅ | ❌ | The harness reads files directly (it does not see the editor's unsaved buffer state). Claude delegates; Codex does not. | | `fs/write_text_file` | S | ❌ | ✅ | ❌ | Same — direct writes, no editor delegation. | | `terminal/create` | S | ❌ | ❌ | ❌ | Neither reference adapter drives the client terminal API either — both, like the bridge, render shell output as tool-call content + a `_meta` channel (see [§5 Terminal](#terminal-rendering)). | @@ -130,7 +130,7 @@ The bridge rejects unsupported prompt blocks rather than silently dropping them | Feature | Stable | Bridge | Notes | |---|---|---|---| | `StopReason` mapping | S | ✅ | `turnEndToStopReason` is total over harness turn-end reasons → `end_turn`/`max_tokens`/`cancelled`. | -| Multi-session (N per connection) | S | ✅ | Strict per-session demux; concurrent streams never interleave. See the [multi-session RFC](../../../docs/rfc/proposed/feature/2026-06-14-acp-multi-session.md). | +| Multi-session (N per connection) | S | ✅ | Strict per-session demux; concurrent streams never interleave. See the [multi-session RFC](../../../docs/rfc/implemented/feature/2026-06-14-acp-multi-session.md). | | Disconnect / disposal teardown | S | ✅ | Quiesces every live session on client disconnect or Cordis disposal. | | `_meta` extensibility | S | ⚠️ | Consumed (Zed terminal cap) and emitted (terminal `_meta`); no other custom extensions. | | Background-task ownership isolation | — | ✅ | `bash_output`/`bash_kill` reject another session's task via an opaque owner token. | @@ -141,7 +141,7 @@ The bridge rejects unsupported prompt blocks rather than silently dropping them Ranked by how commonly the reference adapters ship them and how much UX they unlock: 1. **Session lifecycle** — `session/list` + `session/delete` (the persistence layer already lists), then `session/resume` / `session/close`. -2. **Modes / config options / model selection** — the permission round-trip landed with the approval seam; the config surface (`sandbox_mode`/`approval_policy` options) is the sandbox RFC's config phase. +2. **Model selection** — sandbox and approval config options are implemented; selecting the bridge's model at runtime remains open. 3. **Agent plan** (`sessionUpdate: 'plan'`) — surface the loop's plan as structured entries. 4. **Slash commands** (`available_commands_update`). 5. **MCP passthrough** (`mcpServers` on `session/new` + `mcpCapabilities`). diff --git a/packages/ui/acp/package.json b/packages/ui/acp/package.json index 0f3efc7110..a916722c52 100644 --- a/packages/ui/acp/package.json +++ b/packages/ui/acp/package.json @@ -28,7 +28,7 @@ }, "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", - "@deepseek-ai/dsh-approval": "^0.0.1", + "@deepseek-ai/dsh-user-approval": "^0.0.1", "@deepseek-ai/dsh-bash": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-sandbox": "^0.0.1", @@ -41,7 +41,7 @@ "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-agent-loop": "workspace:^", - "@deepseek-ai/dsh-approval": "workspace:^", + "@deepseek-ai/dsh-user-approval": "workspace:^", "@deepseek-ai/dsh-bash": "workspace:^", "@deepseek-ai/dsh-bash-local": "workspace:^", "@deepseek-ai/dsh-fs-local": "workspace:^", diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index a7b13ac13b..253bfb9b13 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -75,9 +75,9 @@ import type { Agent, AgentStatus } from '@deepseek-ai/dsh-agent' import { AgentId } from '@deepseek-ai/dsh-agent' import { SessionId } from '@deepseek-ai/dsh-session' import { SANDBOX_MODES, effectiveSandboxMode, setSandboxMode } from '@deepseek-ai/dsh-bash' -import { APPROVAL_POLICIES, effectiveApprovalPolicy, setApprovalPolicy } from '@deepseek-ai/dsh-approval' +import { APPROVAL_POLICIES, effectiveApprovalPolicy, setApprovalPolicy } from '@deepseek-ai/dsh-user-approval' import type { SandboxMode } from '@deepseek-ai/dsh-sandbox' -import type { ApprovalPolicy } from '@deepseek-ai/dsh-approval' +import type { ApprovalPolicy } from '@deepseek-ai/dsh-user-approval' import type { SessionEvent, TodoItem, TurnEndReason } from '@deepseek-ai/dsh-session' import type { ToolCallView, ToolRegistry, ToolResultView, TerminalResultView } from '@deepseek-ai/dsh-tools' // Side-effect type import: declaration-merges `ctx.sessionPersistence` onto @@ -85,7 +85,7 @@ import type { ToolCallView, ToolRegistry, ToolResultView, TerminalResultView } f import type {} from '@deepseek-ai/dsh-session-persistence' // Side-effect type import: declaration-merges the `approval/request` waterfall // the bridge answers for its own agents (see the approval answerer below). -import type {} from '@deepseek-ai/dsh-approval' +import type {} from '@deepseek-ai/dsh-user-approval' import { UserInteractionError, type AskUserQuestionAnswer, @@ -582,7 +582,7 @@ export function apply(ctx: Context, config: AcpConfig): void { // --- Approval answerer ----------------------------------------------------- // The bridge is the approval channel for the agents it owns: an `ask` routed - // through `ctx.approval` (dsh-tools today, sandbox escalation later) becomes + // through `ctx.approval` (dsh-tools asks and sandbox escalation) becomes // an editor permission prompt attached to the already-streamed tool call. The // listener occupies the single decision slot ONLY for its own agents — a // foreign or call-less request delegates via next() so another answerer (or diff --git a/packages/ui/acp/tests/approval.spec.ts b/packages/ui/acp/tests/approval.spec.ts index 84b816067c..ed035aaf80 100644 --- a/packages/ui/acp/tests/approval.spec.ts +++ b/packages/ui/acp/tests/approval.spec.ts @@ -5,7 +5,7 @@ import { join } from 'node:path' import { PROTOCOL_VERSION } from '@agentclientprotocol/sdk' import { CallId } from '@deepseek-ai/dsh-llm' import { AgentId, type Agent } from '@deepseek-ai/dsh-agent' -import ApprovalService, { type ApprovalRequest } from '@deepseek-ai/dsh-approval' +import ApprovalService, { type ApprovalRequest } from '@deepseek-ai/dsh-user-approval' import { makeBridgeHarness, type BridgeHarness } from './harness.ts' /** diff --git a/packages/ui/acp/tests/config-options.spec.ts b/packages/ui/acp/tests/config-options.spec.ts index 46ff7c13e5..1202e44bd3 100644 --- a/packages/ui/acp/tests/config-options.spec.ts +++ b/packages/ui/acp/tests/config-options.spec.ts @@ -13,8 +13,8 @@ import { tmpdir } from 'node:os' import { join } from 'node:path' import { PROTOCOL_VERSION } from '@agentclientprotocol/sdk' import * as Invariants from '@deepseek-ai/dsh-invariants' -import ApprovalService from '@deepseek-ai/dsh-approval' -import type { ApprovalPolicy } from '@deepseek-ai/dsh-approval' +import ApprovalService from '@deepseek-ai/dsh-user-approval' +import type { ApprovalPolicy } from '@deepseek-ai/dsh-user-approval' import { LocalBashExecutor } from '@deepseek-ai/dsh-bash-local' import type { SandboxMode } from '@deepseek-ai/dsh-sandbox' import { makeBridgeHarness, textResponse, type BridgeHarness } from './harness.ts' diff --git a/packages/ui/acp/tsconfig.json b/packages/ui/acp/tsconfig.json index 9aea0732d6..0c82438277 100644 --- a/packages/ui/acp/tsconfig.json +++ b/packages/ui/acp/tsconfig.json @@ -36,7 +36,7 @@ "path": "../../session-persistence/session-persistence" }, { - "path": "../../approval/approval" + "path": "../user-approval" }, { "path": "../../sandbox/sandbox" diff --git a/packages/approval/approval/README.md b/packages/ui/user-approval/README.md similarity index 58% rename from packages/approval/approval/README.md rename to packages/ui/user-approval/README.md index b4f3a293c1..3973dd5029 100644 --- a/packages/approval/approval/README.md +++ b/packages/ui/user-approval/README.md @@ -1,12 +1,12 @@ -# @deepseek-ai/dsh-approval +# @deepseek-ai/dsh-user-approval -Approval seam. Owns the `ctx.approval` service ([`ApprovalService`](src/index.ts)) and the one-shot permission vocabulary the harness shares: `ApprovalRequest` (agent + tool identity + reason + abort signal), the closed `ApprovalOutcome` union (`allowed-once` / `rejected` / `cancelled` / `unavailable`), the `ApprovalRequestId` brand pairing the two log-only audit events (`approval/asked` / `approval/decided`), and the `approval/request` waterfall the answerers listen on. Depends only on cordis and the core vocabulary packages (agent, session, llm brand), never on any UI. +User-approval seam. Owns the `ctx.approval` service ([`ApprovalService`](src/index.ts)) and the one-shot permission vocabulary the harness shares: `ApprovalRequest` (agent + tool identity + reason + abort signal), the closed `ApprovalOutcome` union (`allowed-once` / `rejected` / `cancelled` / `unavailable`), the `ApprovalRequestId` brand pairing the two log-only audit events (`approval/asked` / `approval/decided`), and the `approval/request` waterfall the answerers listen on. It lives in the UI group because its purpose is human permission, while remaining channel-neutral: it depends only on Cordis and core vocabulary packages, never on a concrete UI. The contract in one line: `ctx.approval.request(req)` puts exactly one question — "may this specific action proceed?" — to whatever answerers the deployment composed, and always resolves to an outcome, never rejects: an aborted signal yields `cancelled`, a throwing or missing answerer yields `unavailable`, and `allowed-once` is a grant for the single asked-about action, never a class of future ones. The one precondition: ask from inside an open turn — the audit pair is turn-enclosed by contract (the turn is the durable log's commit/replay boundary; a bare event between turns is crash-tail garbage on reload), so an idle ask throws before appending anything. The service is the mechanism, answerers are the policy. Answerers are `approval/request` waterfall listeners occupying a single decision slot: answer for an agent you own by returning an outcome without calling `next()`, or delegate an agent you don't recognize by calling `next()` — the chain's built-in default is `unavailable`, so a deployment with no answerer (headless, CI) fails closed with zero configuration. Registration order across sibling plugins is not load-order deterministic; compose one terminal answerer per deployment and use `prepend` listeners only for decide-or-delegate gates. -The seam also owns the per-session POLICY tier ([the sandbox RFC § Per-session mode switching](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)): `ApprovalPolicy` is `'ask'` (delegate to the answerers — the prior behavior exactly) or `'never'` (deterministically reject without prompting anyone; the strict CI/unattended stance), with `effective = fold(the session's 'approval/policy' events, last one wins) ?? Config.policy` — the session log is the store, written only through `setApprovalPolicy(session, policy)`. The service decides `'never'` inside `request()` itself, before dispatching the waterfall (`'never'` → `'rejected'` with the audit pair still landing; no listener registration, including a later `prepend`, can precede it), states `'never'` — and only `'never'` — in a per-agent prompt section (a "you will be prompted" promise under `'ask'` would overclaim what a headless composition can do; the section scope activates only when `systemPrompt` is composed), and narrates a policy switch to the model in at most one coalesced `agent/pre-step` notice, attributed positionally (an override event after the log's last `request/header*` reads `changed by the user`; a config drift reads `changed by the operator/config`). +The seam also owns the per-session POLICY tier ([the sandbox RFC § Per-session mode switching](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)): `ApprovalPolicy` is `'ask'` (delegate to the answerers) or `'never'` (deterministically reject without prompting anyone; the strict CI/unattended stance), with `effective = fold(the session's 'approval/policy' events, last one wins) ?? Config.policy` — the session log is the store, written only through `setApprovalPolicy(session, policy)`. The service decides `'never'` inside `request()` itself, before dispatching the waterfall (`'never'` → `'rejected'` with the audit pair still landing; no listener registration, including a later `prepend`, can precede it), states `'never'` — and only `'never'` in prose — in a per-agent prompt section, records either value with a source-owned header marker, and narrates a policy switch to the model in at most one coalesced `agent/pre-step` notice. The restart fallback reads the marker rather than deployment-controlled persona prose; attribution is positional (an override event after the last `request/header*` reads `changed by the user`, otherwise `changed by the operator/config`). One seam serves both ask paths of [the sandbox RFC](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md): the `tools/pre-execute` `ask` decision (routed by [`@deepseek-ai/dsh-tools`](../../core/tools/) when this service is mounted; degrading to deny when it is not), and the sandbox post-denial escalated retry (the bash tool's `sandbox_permissions` gate in [`@deepseek-ai/dsh-tool-bash`](../../bash/tool-bash/) — [the sandbox RFC § Escalation](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)). The full design: [the approval-seam RFC](../../../docs/rfc/implemented/feature/2026-07-06-approval-seam.md). diff --git a/packages/approval/approval/package.json b/packages/ui/user-approval/package.json similarity index 80% rename from packages/approval/approval/package.json rename to packages/ui/user-approval/package.json index 38ce9533b1..619339fde3 100644 --- a/packages/approval/approval/package.json +++ b/packages/ui/user-approval/package.json @@ -1,6 +1,6 @@ { - "name": "@deepseek-ai/dsh-approval", - "description": "Approval seam (ctx.approval) for the DeepSeek Harness: one-shot permission decisions dispatched to composed answerers over the approval/request waterfall, fail-closed by default", + "name": "@deepseek-ai/dsh-user-approval", + "description": "User-approval seam (ctx.approval) for the DeepSeek Harness: one-shot permission decisions dispatched to composed answerers over the approval/request waterfall, fail-closed by default", "version": "0.0.1", "private": true, "type": "module", diff --git a/packages/approval/approval/src/index.ts b/packages/ui/user-approval/src/index.ts similarity index 88% rename from packages/approval/approval/src/index.ts rename to packages/ui/user-approval/src/index.ts index 2f819e83e2..064875a86a 100644 --- a/packages/approval/approval/src/index.ts +++ b/packages/ui/user-approval/src/index.ts @@ -8,8 +8,8 @@ * * The service is the MECHANISM (dispatch, cancellation, audit); answerers are * the POLICY. It serves both ask paths the sandbox RFC names — the - * `tools/pre-execute` `ask` decision today, and the sandbox post-denial - * escalation when that phase lands — so every asker shares one outcome + * `tools/pre-execute` `ask` decision and the sandbox post-denial escalation — + * so every asker shares one outcome * vocabulary and one audit trail. Grants are one-shot by design: an * `'allowed-once'` outcome authorizes the single action it was asked about, * never a class of future actions. @@ -30,7 +30,7 @@ * asking); an `agent/pre-step` narrator explains a switch to the model in at * most one coalesced notice per step. * - * @module @deepseek-ai/dsh-approval + * @module @deepseek-ai/dsh-user-approval */ import { randomUUID } from 'node:crypto' @@ -153,18 +153,32 @@ export const APPROVAL_POLICIES: readonly ApprovalPolicy[] = ['ask', 'never'] /** * The prompt sentence stating a `'never'` policy — visibility for the one - * deterministic policy (see {@link ApprovalPolicy}), and the narrator's parse - * candidate for "what was the model last told": a folded `request/header*` - * system text containing it was assembled under `'never'`; one without it - * (but with any header at all) was assembled under `'ask'`, which states - * nothing. The exact-wording compatibility surface (writer and parser) lives - * entirely in this module; the bash tool description's escalation teaching - * additionally defers to the sentence's opening claim by meaning (see - * `dsh-tool-bash`), so keep the sentence opening with the approvals-disabled - * statement. + * deterministic policy (see {@link ApprovalPolicy}). Narrator persistence + * does NOT parse this prose: deployments can quote it in a persona or another + * section, so the section also emits a source-owned marker. */ const NEVER_SENTENCE = 'Approval prompts are disabled in this session: actions that require approval are rejected automatically — do not request sandbox escalation (do not set `sandbox_permissions`).' +/** Source-owned prompt markers used to reconstruct the policy in a logged header. */ +const POLICY_MARKERS = { + ask: '', + never: '', +} as const satisfies Record + +/** + * Read the policy fact emitted by this service from a logged system prompt. + * The section is ordered after deployment persona text, and the last marker + * wins so a persona quoting an earlier marker cannot shadow the service's own + * contribution. Ordinary policy prose is deliberately ignored. + */ +function toldApprovalPolicy(system: string | undefined): ApprovalPolicy | undefined { + if (system === undefined) return undefined + const ask = system.lastIndexOf(POLICY_MARKERS.ask) + const never = system.lastIndexOf(POLICY_MARKERS.never) + if (ask < 0 && never < 0) return undefined + return never > ask ? 'never' : 'ask' +} + /** * The session's approval-policy override: the last `approval/policy` event in * the log, or undefined when the session never switched (callers apply the @@ -258,13 +272,12 @@ export interface Config { * returned to the caller, never stored here. * * Owns the policy tier too (`effective = fold(the session's 'approval/policy' - * events) ?? config.policy`): a PREPENDED decide-or-delegate gate resolves - * `'never'` sessions to `'rejected'` before any interactive answerer is - * prompted, a per-agent prompt section states a `'never'` policy (and only - * that one — an `'ask'` promise could overclaim an answerer that headless - * compositions do not have), and an `agent/pre-step` narrator injects at most - * one coalesced notice when a session's effective policy moved past what the - * model was last told. + * events) ?? config.policy`): `request()` resolves `'never'` to `'rejected'` + * before dispatching any interactive answerer, a per-agent prompt section + * states a `'never'` policy (and only that one in prose — an `'ask'` promise + * could overclaim an answerer that headless compositions do not have), and an + * `agent/pre-step` narrator injects at most one coalesced notice when a + * session's effective policy moved past what the model was last told. */ export class ApprovalService extends Service { static Config: z = z.object({ @@ -278,9 +291,10 @@ export class ApprovalService extends Service { // Visibility layer 1, scoped on the prompt registry so headless // compositions mount the seam without it: state the one deterministic - // policy per session. 'ask' renders nothing — stating "you will be - // asked" would overclaim in a composition with no answerer, and absence - // under any logged header is exactly how the narrator reads 'ask' back. + // policy per session. 'ask' renders only a source-owned state marker — + // stating "you will be asked" would overclaim in a composition with no + // answerer. The marker, not deployment-controlled prose, is what the + // restart narrator reads back from the logged request header. ctx.inject(['systemPrompt'], (scope: Context) => { scope.systemPrompt.section({ name: 'approval:policy', @@ -289,7 +303,8 @@ export class ApprovalService extends Service { const agent = context.agent // A bare assemble() (tests, diagnostics) has no session to state. if (agent === undefined) return '' - return effective(agent) === 'never' ? NEVER_SENTENCE : '' + const policy = effective(agent) + return policy === 'never' ? `${NEVER_SENTENCE}\n${POLICY_MARKERS.never}` : POLICY_MARKERS.ask }, }) }) @@ -322,8 +337,7 @@ export class ApprovalService extends Service { // for POSITIONAL attribution; the default lives once, in the method. const current = this.effectivePolicy(agent) const header = session.requestHeader() - const told = narrated.get(session) - ?? (header === undefined ? undefined : header.system?.includes(NEVER_SENTENCE) === true ? 'never' : 'ask') + const told = narrated.get(session) ?? toldApprovalPolicy(header?.system) narrated.set(session, current) // Cold start (nothing ever told) narrates nothing — the section about // to go out states the truth, and there is no delta to explain. @@ -331,7 +345,7 @@ export class ApprovalService extends Service { const cause = overrideIndex > headerIndex ? 'changed by the user' : 'changed by the operator/config' agent.inject( [{ type: 'text', text: `The approval policy changed from "${told}" to "${current}" (${cause}).` }], - { source: { kind: 'plugin', plugin: 'approval' } }, + { source: { kind: 'plugin', plugin: 'user-approval' } }, ) }) } diff --git a/packages/approval/approval/tests/approval.spec.ts b/packages/ui/user-approval/tests/approval.spec.ts similarity index 84% rename from packages/approval/approval/tests/approval.spec.ts rename to packages/ui/user-approval/tests/approval.spec.ts index a732a3161c..891f3eb4a1 100644 --- a/packages/approval/approval/tests/approval.spec.ts +++ b/packages/ui/user-approval/tests/approval.spec.ts @@ -5,7 +5,7 @@ import { CallId } from '@deepseek-ai/dsh-llm' import { Session, SessionId } from '@deepseek-ai/dsh-session' import type { SessionEvent } from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' -import ApprovalService, { ApprovalOutcome, ApprovalRequest, effectiveApprovalPolicy, setApprovalPolicy } from '@deepseek-ai/dsh-approval' +import ApprovalService, { ApprovalOutcome, ApprovalRequest, effectiveApprovalPolicy, setApprovalPolicy } from '@deepseek-ai/dsh-user-approval' /** * A minimal Agent stand-in — the service only reaches `agent.session.append` @@ -205,6 +205,8 @@ describe('ApprovalService.request', () => { describe('approval policy (the approval/policy fold)', () => { const NEVER_SENTENCE = 'Approval prompts are disabled in this session: actions that require approval are rejected automatically — do not request sandbox escalation (do not set `sandbox_permissions`).' + const ASK_MARKER = '' + const NEVER_MARKER = '' /** * An agent stand-in over a REAL Session — gate, section, and narrator fold @@ -304,7 +306,7 @@ describe('approval policy (the approval/policy fold)', () => { await expect(ctx.approval.request({ agent, toolName: 'bash' })).resolves.toBe('rejected') }) - it('states never (and only never) in the prompt, per session', async () => { + it('states never (and only never) in prose while recording either policy with a source-owned marker', async () => { const ctx = new Context() await ctx.plugin(SystemPrompt) await ctx.plugin(ApprovalService) @@ -313,8 +315,8 @@ describe('approval policy (the approval/policy fold)', () => { setApprovalPolicy(session, 'never') const sectionFor = async (context: object) => (await ctx.systemPrompt.assemble(context)).sections.find(s => s.name === 'approval:policy')?.text - expect(await sectionFor({ agent: askAgent })).toBe('') - expect(await sectionFor({ agent: neverAgent })).toBe(NEVER_SENTENCE) + expect(await sectionFor({ agent: askAgent })).toBe(ASK_MARKER) + expect(await sectionFor({ agent: neverAgent })).toBe(`${NEVER_SENTENCE}\n${NEVER_MARKER}`) // A bare assemble (no agent) has no session to state. expect(await sectionFor({})).toBe('') }) @@ -344,16 +346,16 @@ describe('approval policy (the approval/policy fold)', () => { const ctx = new Context() await ctx.plugin(ApprovalService) const { agent, session, injected } = sessionAgent('sess-narr-2') - appendHeader(session, `persona\n\n${NEVER_SENTENCE}`) + appendHeader(session, `persona\n\n${NEVER_SENTENCE}\n${NEVER_MARKER}`) await preStep(ctx, agent) expect(injected).toEqual(['The approval policy changed from "never" to "ask" (changed by the operator/config).']) }) - it('narrates a config default drift over a sentence-less header (told = ask by absence)', async () => { + it('narrates a config default drift from the logged ask marker', async () => { const ctx = new Context() await ctx.plugin(ApprovalService, { policy: 'never' }) const { agent, session, injected } = sessionAgent('sess-narr-3') - appendHeader(session, 'persona only') + appendHeader(session, `persona only\n${ASK_MARKER}`) await preStep(ctx, agent) expect(injected).toEqual(['The approval policy changed from "ask" to "never" (changed by the operator/config).']) }) @@ -362,10 +364,61 @@ describe('approval policy (the approval/policy fold)', () => { const ctx = new Context() await ctx.plugin(ApprovalService, { policy: 'never' }) const { agent, session, injected } = sessionAgent('sess-narr-4') - appendHeader(session, 'persona only') + appendHeader(session, `persona only\n${ASK_MARKER}`) setApprovalPolicy(session, 'ask') - appendHeader(session, 'persona only') + appendHeader(session, `persona only\n${ASK_MARKER}`) await preStep(ctx, agent) expect(injected).toEqual([]) }) + + it('does not infer never from deployment prose that quotes the never sentence', async () => { + const ctx = new Context() + await ctx.plugin(ApprovalService) + const { agent, session, injected } = sessionAgent('sess-narr-spoof-prose') + appendHeader(session, `persona quotes this warning: ${NEVER_SENTENCE}\n${ASK_MARKER}`) + await preStep(ctx, agent) + expect(injected).toEqual([]) + }) + + it('treats a legacy header with no source-owned marker as untold', async () => { + const ctx = new Context() + await ctx.plugin(ApprovalService, { policy: 'never' }) + const { agent, session, injected } = sessionAgent('sess-narr-unmarked-header') + appendHeader(session, 'legacy persona-only header') + await preStep(ctx, agent) + expect(injected).toEqual([]) + }) + + it('uses the service marker after an earlier persona marker', async () => { + const ctx = new Context() + await ctx.plugin(ApprovalService) + const { agent, session, injected } = sessionAgent('sess-narr-spoof-marker') + appendHeader(session, `persona quotes ${NEVER_MARKER}\n${ASK_MARKER}`) + await preStep(ctx, agent) + expect(injected).toEqual([]) + }) + + it('disposes the service prompt section and pre-step narrator together (HMR safety)', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + const fiber = await ctx.plugin(ApprovalService) + const live = sessionAgent('sess-hmr-service-live') + const afterDispose = sessionAgent('sess-hmr-service-disposed') + const sectionFor = async () => + (await ctx.systemPrompt.assemble({ agent: live.agent })).sections.find(section => section.name === 'approval:policy') + expect(await sectionFor()).toBeDefined() + + appendHeader(live.session, `persona\n${ASK_MARKER}`) + setApprovalPolicy(live.session, 'never') + await preStep(ctx, live.agent) + expect(live.injected).toEqual(['The approval policy changed from "ask" to "never" (changed by the user).']) + + appendHeader(afterDispose.session, `persona\n${ASK_MARKER}`) + setApprovalPolicy(afterDispose.session, 'never') + await fiber.dispose() + + expect(await sectionFor()).toBeUndefined() + await preStep(ctx, afterDispose.agent) + expect(afterDispose.injected).toEqual([]) + }) }) diff --git a/packages/approval/approval/tsconfig.json b/packages/ui/user-approval/tsconfig.json similarity index 100% rename from packages/approval/approval/tsconfig.json rename to packages/ui/user-approval/tsconfig.json diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 06bda5af34..c22e799340 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -75,7 +75,7 @@ importers: specifier: ^4.1.8 version: 4.1.8(@types/node@22.20.0)(@vitest/coverage-v8@4.1.8)(jsdom@29.1.1)(vite@8.0.16(@types/node@22.20.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0)) - packages/approval/approval: + packages/ui/user-approval: dependencies: schemastery: specifier: ^3.18.0 @@ -164,9 +164,9 @@ importers: '@deepseek-ai/dsh-agent-loop': specifier: workspace:^ version: link:../../core/agent-loop - '@deepseek-ai/dsh-approval': + '@deepseek-ai/dsh-user-approval': specifier: workspace:^ - version: link:../../approval/approval + version: link:../../ui/user-approval '@deepseek-ai/dsh-bash': specifier: workspace:^ version: link:../bash @@ -416,9 +416,9 @@ importers: '@deepseek-ai/dsh-agent': specifier: workspace:^ version: link:../agent - '@deepseek-ai/dsh-approval': + '@deepseek-ai/dsh-user-approval': specifier: workspace:^ - version: link:../../approval/approval + version: link:../../ui/user-approval '@deepseek-ai/dsh-code-runtime': specifier: workspace:^ version: link:../../code-runtime/code-runtime @@ -1063,9 +1063,9 @@ importers: '@deepseek-ai/dsh-agent-loop': specifier: workspace:^ version: link:../../core/agent-loop - '@deepseek-ai/dsh-approval': + '@deepseek-ai/dsh-user-approval': specifier: workspace:^ - version: link:../../approval/approval + version: link:../user-approval '@deepseek-ai/dsh-bash': specifier: workspace:^ version: link:../../bash/bash diff --git a/scripts/gen-cordis-catalog.ts b/scripts/gen-cordis-catalog.ts index 9b8141807e..7c6666542b 100644 --- a/scripts/gen-cordis-catalog.ts +++ b/scripts/gen-cordis-catalog.ts @@ -92,11 +92,17 @@ export const LINK_MAP: Record = { ToolDefinition: 'tools.md', ToolExecution: 'tools.md', ToolExecutionResult: 'tools.md', + ApprovalOutcome: 'approval.md', + ApprovalPolicy: 'approval.md', + ApprovalRequest: 'approval.md', BashExecRequest: 'bash.md', BashExecSpec: 'bash.md', BashRunResult: 'bash.md', BashTask: 'bash.md', BashTaskRead: 'bash.md', + ConfinedArgv: 'sandbox.md', + SandboxMode: 'sandbox.md', + SandboxPolicy: 'sandbox.md', CodeRunRequest: 'code-runtime.md', CodeRunResult: 'code-runtime.md', FsEditOutcome: 'filesystem.md', diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index d1481c24ba..655b66833c 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -56,15 +56,25 @@ { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "UserInteractionProvider", "source": "packages/ui/user-interaction/src/index.ts" }, { "doc": "docs/core-data-structures/user-interaction.md", "symbol": "UserInteractionError", "source": "packages/ui/user-interaction/src/index.ts" }, + { "doc": "docs/core-data-structures/approval.md", "symbol": "ApprovalRequestId", "source": "packages/ui/user-approval/src/index.ts" }, + { "doc": "docs/core-data-structures/approval.md", "symbol": "ApprovalOutcome", "source": "packages/ui/user-approval/src/index.ts" }, + { "doc": "docs/core-data-structures/approval.md", "symbol": "ApprovalPolicy", "source": "packages/ui/user-approval/src/index.ts" }, + { "doc": "docs/core-data-structures/approval.md", "symbol": "ApprovalRequest", "source": "packages/ui/user-approval/src/index.ts" }, + { "doc": "docs/core-data-structures/bash.md", "symbol": "BashExecRequest", "source": "packages/bash/bash/src/types.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "BashExecSpec", "source": "packages/bash/bash/src/types.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "BashRunResult", "source": "packages/bash/bash/src/types.ts" }, - { "doc": "docs/core-data-structures/bash.md", "symbol": "SandboxMode", "source": "packages/sandbox/sandbox/src/index.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "BashSandboxInfo", "source": "packages/bash/bash/src/types.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "CollectedOutput", "source": "packages/bash/bash/src/types.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "BashTask", "source": "packages/bash/bash/src/types.ts" }, { "doc": "docs/core-data-structures/bash.md", "symbol": "BashTaskRead", "source": "packages/bash/bash/src/types.ts" }, + { "doc": "docs/core-data-structures/sandbox.md", "symbol": "SandboxMode", "source": "packages/sandbox/sandbox/src/index.ts" }, + { "doc": "docs/core-data-structures/sandbox.md", "symbol": "ConfinedSandboxMode", "source": "packages/sandbox/sandbox/src/index.ts" }, + { "doc": "docs/core-data-structures/sandbox.md", "symbol": "SandboxEnforcement", "source": "packages/sandbox/sandbox/src/index.ts" }, + { "doc": "docs/core-data-structures/sandbox.md", "symbol": "SandboxPolicy", "source": "packages/sandbox/sandbox/src/index.ts" }, + { "doc": "docs/core-data-structures/sandbox.md", "symbol": "ConfinedArgv", "source": "packages/sandbox/sandbox/src/index.ts" }, + { "doc": "docs/core-data-structures/code-runtime.md", "symbol": "CodeRunRequest", "source": "packages/code-runtime/code-runtime/src/types.ts" }, { "doc": "docs/core-data-structures/code-runtime.md", "symbol": "CodeRunResult", "source": "packages/code-runtime/code-runtime/src/types.ts" }, { "doc": "docs/core-data-structures/code-runtime.md", "symbol": "CodeBindingNamespace", "source": "packages/code-runtime/code-runtime/src/types.ts" }, diff --git a/tsconfig.base.json b/tsconfig.base.json index 66565fb080..8a8df1da03 100644 --- a/tsconfig.base.json +++ b/tsconfig.base.json @@ -42,7 +42,6 @@ "@deepseek-ai/dsh-*": [ "./packages/core/*/src", "./packages/llm/*/src", - "./packages/approval/*/src", "./packages/bash/*/src", "./packages/code-runtime/*/src", "./packages/fs/*/src", diff --git a/tsconfig.build.json b/tsconfig.build.json index 814b906d80..09a2795a88 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -20,7 +20,7 @@ { "path": "./packages/core/system-prompt" }, { "path": "./packages/core/agent" }, { "path": "./packages/ui/user-interaction" }, - { "path": "./packages/approval/approval" }, + { "path": "./packages/ui/user-approval" }, { "path": "./packages/core/tools" }, { "path": "./packages/ui/tool-ask-user" }, { "path": "./packages/core/agent-loop" }, diff --git a/tsconfig.json b/tsconfig.json index d581491025..cf630b244c 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -31,7 +31,7 @@ { "path": "./packages/core/system-prompt" }, { "path": "./packages/core/agent" }, { "path": "./packages/ui/user-interaction" }, - { "path": "./packages/approval/approval" }, + { "path": "./packages/ui/user-approval" }, { "path": "./packages/core/tools" }, { "path": "./packages/ui/tool-ask-user" }, { "path": "./packages/core/agent-loop" }, From 0d23d95ddedb8379c0048dd6d51ff6a702082ed4 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 22:07:56 +0800 Subject: [PATCH 186/232] docs(sandbox): record follow-up boundaries --- docs/rfc/implemented/feature/2026-07-06-sandbox.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/docs/rfc/implemented/feature/2026-07-06-sandbox.md b/docs/rfc/implemented/feature/2026-07-06-sandbox.md index cea1211487..e3e740b31c 100644 --- a/docs/rfc/implemented/feature/2026-07-06-sandbox.md +++ b/docs/rfc/implemented/feature/2026-07-06-sandbox.md @@ -77,6 +77,8 @@ The launcher is a ~300-line C program (plain C11 over the raw Landlock UAPI — The launcher lives in its own repository and reaches the harness as the npm package family [`node-addon-landlock-run`](https://www.npmjs.com/package/node-addon-landlock-run) (the per-platform-package pattern of `node-addon-require-builtin` and esbuild): an entry package — `dsh-sandbox-local`'s one runtime dependency — plus per-platform binary packages selected at install time by npm's `os`/`cpu` fields. The entry package owns the launcher's CLI contract end to end (`launcherPath()` resolution with a never-existing fallback, the functional `probe()`, `grantArgs()` flag spelling), versioned together with the binary so probe-report parsing can never drift against it; the harness keeps only the policy side, `landlockProfileArgs()` mapping the mode vocabulary to grants. Native-only per-architecture builds, pack gates (binary presence, executability, ELF architecture), and the byte-pinned publish rehearsal are that repository's release pipeline; this repo's Landlock CI legs install the published family from the registry — the true consumer path — and prove real-kernel confinement through it. +FIXME: Revisit the separate-repository boundary and try to maintain the launcher source and its platform package family inside this monorepo, so the native release surface and harness contract evolve together. + Profile parity is honest rather than identical: under Landlock, `read-only` grants `--ro /` plus `--rw /dev/null` (the node, not `/dev` — the host's `/dev/shm` is a persistent shared tmpfs), and `workspace-write` grants the HOST `/tmp` where bwrap's is ephemeral; under Seatbelt, `read-only` likewise grants only the `/dev/null` literal, and `workspace-write` grants the host `/tmp` plus the per-user darwin temp dir (`os.tmpdir()` — the platform's real temp area for mkstemp-family tools; omitting it would deny what the mode promises). Every wrap carries the rung's denial dialect (`denialSignatures`: EROFS text under bwrap, EACCES under Landlock, EPERM under Seatbelt) so consumers match the active backend rather than a cross-runner union. Enforcement is honest per ABI level: an older kernel enforces the subset its ABI governs (path truncate is ungoverned before ABI v3), the probe's report line distinguishes the cases, and every confined result carries the structured `enforcement: 'full' | 'partial'` fact — refusing partial enforcement would deny the fallback to precisely the older-kernel hosts that need it. The bwrap and Seatbelt profiles govern every promised file effect by construction, so their passing probes always report `full`. #### The bash consumer @@ -126,6 +128,8 @@ Each owner exports the same three-piece kit: the event declaration, a pure fold fs/web/todo execute in-process, so their sandbox semantics are policy at their seams: the fs intent gates deciding by the shared mode vocabulary (§ Deferred phases, cross-family) make `read-only` a real boundary instead of a bash-only approximation — until then the contract says so honestly. No generic per-tool sandbox runtime: a host-mediated tool leaves the process only by returning declarative effects the host validates, which is a rewrite, not a wrapper. +FIXME: Revisit this tool-local boundary. The follow-up design needs to determine whether sandboxing becomes a global harness capability that applies uniformly to every tool, instead of expressing in-process enforcement independently at each tool seam. + ### Testing - Unit tier (no real runner anywhere): profile dialects, per-platform chain selection (sole candidate unprobed, no chain fails closed, multi-candidate probe order), verdict caching, the fail-closed end, probe-report parsing, and the launcher/`sandbox-exec` CLI contracts via fake runner scripts in `dsh-sandbox-local`; wrapping, policy hand-off, fact stamping, and runner-failure-outranks-denial classification (foreground throw, background `runnerFailed` fact) against a fake provider in `dsh-bash-sandbox`; the error's structured identity in `dsh-sandbox`. The escalation matrix spans the three bash packages: verbatim carry-through in `dsh-bash-local`, stamp/branch/per-task-facts in `dsh-bash-sandbox`, and the capability gate, `justification` pairing, fail-closed texts (pinned verbatim), and grant stamping in `dsh-tool-bash`. The switching surface pins the folds, the stamping precedence, the `'never'` gate, per-session section rendering, the full narrator matrix (cold start, coalescing, net-zero, resume drift with operator wording, positional attribution, persona-shadow hardening), and the bridge's advertisement gating, validation rejections, idle-vs-mid-turn anchoring (dev invariants mounted), and `session/load` reporting over a real two-process JSONL round trip. From 28f7fa0969949c1ab1dc38840c3eb236723f72fe Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 22:18:58 +0800 Subject: [PATCH 187/232] docs(rfc): record deferred skill extensions --- docs/rfc/implemented/feature/2026-07-05-skill-system.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/docs/rfc/implemented/feature/2026-07-05-skill-system.md b/docs/rfc/implemented/feature/2026-07-05-skill-system.md index 6b42ec1a9d..b3007529cd 100644 --- a/docs/rfc/implemented/feature/2026-07-05-skill-system.md +++ b/docs/rfc/implemented/feature/2026-07-05-skill-system.md @@ -47,3 +47,7 @@ The data structures and catalog/tool contract are documented in [skills.md](../. The agent-core spine includes one session-prefix contributor, one local provider, and one model-facing tool. Skill discovery is cwd-sensitive, so callers that create agents with different session cwd values can observe different project skill overrides by design. The catalog is deterministic for a fixed root set and runtime registration revision, but disk changes are not watched; discovery is memoized until runtime registration invalidates the cache or the process restarts. + +## Deferred + +Forked skill contexts (`context: fork`), direct user/slash invocation (`user-invocable`), parameter declarations and hints (`arguments` and `argument-hint`), and per-skill tool constraints (`allowed-tools` and `disallowed-tools`) are outside the shipped contract. The registry, local provider, and model-facing tool do not parse, advertise, or enforce these fields. From 9339622d3b6da4070944ba10bc9eed2bb121fb25 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 22:24:20 +0800 Subject: [PATCH 188/232] test(acp): snapshot system prompts as Markdown --- .../testing/2026-06-19-acp-snapshot-tests.md | 2 +- ...-request-header-content-in-one-scenario.md | 17 +- .../2026-07-08-shared-acp-snapshot-package.md | 2 +- examples/acp-agent/tests/acp.snapshot.ts | 5 +- .../snapshots/both-mode-turn/session.jsonl | 2 +- .../both-mode-turn/system-prompt.golden.md | 133 +++++++++++++ .../snapshots/code-mode-turn/session.jsonl | 2 +- .../code-mode-turn/system-prompt.golden.md | 133 +++++++++++++ .../tests/snapshots/text-turn/session.jsonl | 2 +- .../text-turn/system-prompt.golden.md | 18 ++ packages/support/acp-snapshot/README.md | 8 +- packages/support/acp-snapshot/src/index.ts | 3 +- .../support/acp-snapshot/src/normalize.ts | 87 +++++---- packages/support/acp-snapshot/src/suite.ts | 183 +++++++++++------- .../record-suite/rec-pin/session.jsonl | 2 +- .../rec-pin/system-prompt.golden.md | 1 + .../fixtures/suite/pin-turn/session.jsonl | 2 +- .../suite/pin-turn/system-prompt.golden.md | 1 + .../acp-snapshot/tests/normalize.spec.ts | 48 ++++- .../support/acp-snapshot/tests/suite.spec.ts | 27 +++ 20 files changed, 543 insertions(+), 135 deletions(-) create mode 100644 examples/acp-agent/tests/snapshots/both-mode-turn/system-prompt.golden.md create mode 100644 examples/acp-agent/tests/snapshots/code-mode-turn/system-prompt.golden.md create mode 100644 examples/acp-agent/tests/snapshots/text-turn/system-prompt.golden.md create mode 100644 packages/support/acp-snapshot/tests/fixtures/record-suite/rec-pin/system-prompt.golden.md create mode 100644 packages/support/acp-snapshot/tests/fixtures/suite/pin-turn/system-prompt.golden.md diff --git a/docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md b/docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md index ae5ea96f83..b424a253bd 100644 --- a/docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md +++ b/docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md @@ -51,7 +51,7 @@ The ACP server app loads `@deepseek-ai/dsh-llm-deepseek`, whose `apply` throws w A snapshot run asserts **two** normalized surfaces, because the harness's external surfaces are distinct: 1. The **stdout transcript** — the framed `session/update` JSON-RPC the editor sees. Catches regressions in the ACP bridge's event→update translation (`streamSessionEventUpdate`). Compared against a committed `stdout.golden.jsonl`. -2. The **re-persisted session JSONL** — the log the replay run itself persists, compared against the scenario's `session.jsonl`. Catches regressions in the loop, tool dispatch, and turn/step structure that never surface on stdout. There is no separate session golden: `session.jsonl` is BOTH the replay source (recorded scenarios) and the expected produced log. Both sides pass through `normalizeSessionLog` before comparing — the fixture is raw-harvested (its own real session id / cwd / timestamps) and the replay output has fresh ones, so each is scrubbed against ITS OWN volatile values (the fixture's read from its header line) and the comparison is on normalized form. Request-header CONTENT (the composed system prompt + tool schemas) is additionally scrubbed to `{{system}}`/`{{tools}}` tokens on both sides — in the stored fixtures too — for every scenario except the one that pins it ([pinned-header RFC](2026-07-06-pin-request-header-content-in-one-scenario.md)). For an authored override scenario the same `session.jsonl` holds the expected produced log; `replay.override.json` drives the model, and `llm-replay` ignores the fixture for model chunks when an override exists, so committing the expected log there does not affect replay. +2. The **re-persisted session JSONL** — the log the replay run itself persists, compared against the scenario's `session.jsonl`. Catches regressions in the loop, tool dispatch, and turn/step structure that never surface on stdout. There is no separate session golden: `session.jsonl` is both the replay source (recorded scenarios) and the expected produced log. Both sides pass through `normalizeSessionLog` before comparing — the fixture is raw-harvested (its own real session id / cwd / timestamps) and the replay output has fresh ones, so each is scrubbed against its own volatile values (the fixture's read from its header line) and the comparison is on normalized form. Every stored JSONL additionally scrubs composed prompt text to `{{system}}`; each header class's pinning scenario stores that prompt readably in `system-prompt.golden.md` and keeps the complete tool schemas in its JSONL, while other scenarios scrub schemas to `{{tools}}` ([pinned-header RFC](2026-07-06-pin-request-header-content-in-one-scenario.md)). For an authored override scenario the same `session.jsonl` holds the expected produced log; `replay.override.json` drives the model, and `llm-replay` ignores the fixture for model chunks when an override exists, so committing the expected log there does not affect replay. The two are genuinely additive: stdout is the bridge's *lossy projection* of the log (it drops `assistant/message.usage`, `step/*`, exact `seq`/`time`, and renders tool I/O differently), so a loop/tool/turn-structure regression can change the JSONL while leaving the stdout projection identical, and a bridge-translation regression can change stdout while the JSONL is untouched. Asserting the JSONL equality also echoes the proposed [universal replay fixture](../../proposed/testing/2026-06-11-deterministic-and-stress-testing.md) idea. diff --git a/docs/rfc/implemented/testing/2026-07-06-pin-request-header-content-in-one-scenario.md b/docs/rfc/implemented/testing/2026-07-06-pin-request-header-content-in-one-scenario.md index 862dfd42fa..00a60ad4bc 100644 --- a/docs/rfc/implemented/testing/2026-07-06-pin-request-header-content-in-one-scenario.md +++ b/docs/rfc/implemented/testing/2026-07-06-pin-request-header-content-in-one-scenario.md @@ -4,29 +4,30 @@ Status: implemented ## Problem -Every model-driving ACP snapshot fixture (`session.jsonl`) embedded the full composed system prompt and the complete tool-schema list in its `request/header` event — roughly 8 KB on one line, per fixture. That content is identical across the suite (byte-identical tool list everywhere, including subagent children; identical prompt modulo each recording's temp cwd), so any change touching a tool description or a system-prompt line had to update every fixture: re-record everything against the live API (churning model responses and stdout goldens along the way) or hand-edit ~35 giant header lines. Introducing the dynamic-workflows feature — one new tool plus one prompt paragraph — rewrote every snapshot fixture in the repo, burying the behavioral diff a reviewer should be reading. +An ACP snapshot suite needs to prove the exact composed system prompt and tool-schema list sent in each `request/header`, but duplicating that content inside every `session.jsonl` makes a prompt or schema edit rewrite dozens of giant one-line JSON records. Keeping one raw header avoids the duplication but still makes prompt review poor: prose is JSON-escaped onto one line and mixed with thousands of characters of tool schemas. ## Decision -Exactly one scenario — `text-turn`, flagged `pinsHeader` in the `acp.snapshot.ts` scenario table — commits and compares the full request-header content; the pin mechanics live in [`dsh-acp-snapshot`](../../../../packages/support/acp-snapshot/README.md), whose suite factory enforces one pin per consuming suite. Every other fixture stores and compares that content as stable tokens via the pure normalizer `scrubRequestHeaders` in that package's `normalize.ts`: a `request/header` event's `header.system` becomes `"{{system}}"` and `header.tools` becomes `"{{tools}}"`; a `request/header-delta` keeps its structural facts — the system delta's `keepStart`/`keepEnd` line positions with one `{{system}}` token per inserted line, the tools delta's added/removed/changed tool names — and tokenizes only the bulk (prompt text, schema bodies), so two different deltas still compare different. The scrub is composed in front of `normalizeSessionLog` on BOTH sides of a non-pinning scenario's log compare and applied to the harvested logs record mode writes, so a re-record cannot smuggle the content back. Absent fields stay absent — WHETHER a header carried a prompt or tools is behavior and stays visible — and `config`/`reason` stay verbatim: a model swap churns every fixture by design (it invalidates the recorded responses), while a prompt or schema edit churns none of them (replay derives model behavior exclusively from `assistant/chunk` events and never reads header content — see `dsh-llm-replay`). +Exactly one scenario per header-composition class is flagged `pinsHeader`. Its directory splits the pin by review format: `system-prompt.golden.md` contains the normalized composed prompt as ordinary Markdown, while `session.jsonl` keeps the full tool-schema list, config, and reason but stores `header.system` as `"{{system}}"`. Every other JSONL stores both the system prompt and tool list as `"{{system}}"` / `"{{tools}}"`. The pin mechanics live in [`dsh-acp-snapshot`](../../../../packages/support/acp-snapshot/README.md), whose suite factory enforces one pin per class. -A system-prompt or tool-schema change therefore lands as exactly one committed-fixture diff — the pinned `text-turn` header line — updated by hand or by re-recording that one scenario (`pnpm run test:snapshot:record` with `-t text-turn`). +The pure `scrubSystemPrompts` normalizer applies to every stored session fixture and tokenizes both an initial header's prompt and a header delta's inserted prompt lines. `scrubRequestHeaders` additionally tokenizes tool schemas and session-prefix content for non-pinning scenarios while retaining structural facts: system-delta positions and arity, added/removed/changed tool names, prefix message count, field presence, config, and reason. Record and refresh write-back apply the appropriate scrub before writing JSONL and regenerate the Markdown prompt from the normalized live header, so neither path can reintroduce prompt text into JSONL or leave the readable snapshot stale. -Guards make the split self-enforcing. On disk (fixture meta-tests): every non-pinning `session*.jsonl` must be a fixed point of `scrubRequestHeaders` (unscrubbed content crept in — apply the scrub), the pinning scenario's fixture must NOT be one (the pin lost its content), and exactly one scenario must pin. Live (every non-pinning scenario run): each `request/header` the run produces — parent, spawn child, fork child, initial or resume — must equal the pinned fixture's header after both sides normalize their own volatile values, and no `request/header-delta` may appear at all (a mid-run header change diverges from the pin by construction, and its content would be invisible under the scrub), so the single-pin premise is asserted rather than assumed. +Guards make the split self-enforcing. On disk, every `session*.jsonl` is a fixed point of `scrubSystemPrompts`, only non-pinning fixtures are fixed points of the full header scrub, `system-prompt.golden.md` exists exactly beside pinning fixtures, and each class has one pin. Live, every `request/header` produced by a parent, spawn child, fork child, initial request, or resume must match both halves of its class's pin after volatile-value normalization. A header without a string prompt or any `request/header-delta` fails loud because the two static pin artifacts cannot represent it. One pin covers the whole suite because every session — parent, spawn child, fork child — composes the identical tool list and the identical prompt modulo cwd, and the uniformity guard fails the suite the moment that stops holding. If header composition ever becomes session-dependent by design (a restricted subagent toolset, say), the divergent shape gets its own pinning scenario. ## Alternatives considered -- **Re-record or hand-edit every fixture per change** — the status quo; the churn this RFC removes. -- **Scrub at compare time only, keeping fixtures raw** — the compares go green without fixture edits, but every committed fixture then carries a permanently stale copy of the prompt and schemas: dead weight that misleads readers and still rewrites wholesale on the next re-record. Storing the tokens keeps the fixture honest about what it does and does not pin. +- **Re-record or hand-edit every fixture per change** — preserves exact headers but buries behavioral diffs under duplicated prompt and schema content. +- **Scrub at compare time only, keeping fixtures raw** — lets compares pass while committed fixtures retain stale duplicate content and rewrite wholesale on the next recording. Stored tokens state honestly what each JSONL does not pin. - **Scrub everywhere, pin nowhere** — loses the only end-to-end record of the composed header as actually sent (prompt assembly, registered-tool order, full schemas). The generated tool catalog documents each tool in isolation; only a real fixture pins the composed set. +- **Keep the one full pin entirely in JSONL** — removes suite-wide duplication but leaves system-prompt changes as an escaped one-line diff entangled with the tool list. Markdown gives prompt prose its natural review format without weakening the header assertion. - **Slim the session log itself (log a content digest, store the header elsewhere)** — violates the reconstructability contract: the product log must reproduce each request bit-for-bit ([reconstructable-requests RFC](../architecture/2026-07-05-reconstructable-requests.md)). Header bulk is a test-artifact concern, solved in test normalization; the live log is untouched. ## Verification -All 37 snapshot scenarios replay green with the scrubbed fixtures (the committed fixtures were rewritten once through `scrubRequestHeaders` itself; `text-turn` untouched). The fixed-point, pin-retains-content, exactly-one-pin, live header-uniformity, and no-unpinned-delta guards run inside the suite, and `scrubRequestHeaders` has unit coverage for both header event types, delta structure preservation (line positions, insert arity, tool names), absent-field preservation, config/reason retention, byte-for-byte pass-through of other lines, and idempotence. +The suite replays every scenario against the split pins. Unit coverage exercises both scrub levels, Markdown formatting, record/refresh regeneration, normalized prompt extraction, fixed-point enforcement, required-file symmetry, header uniformity, and delta rejection. ## Consequences -A tool-description or system-prompt change churns one committed fixture line instead of every fixture in the suite, so snapshot diffs read as behavior again, and ~270 KB of duplicated header bytes leave the repo. The cost: non-pinning fixtures no longer display header content, so reading one shows tokens where the prompt and schemas were — the pinned `text-turn` fixture is the place to look, and the live uniformity guard guarantees it speaks for every session in the suite. A header change surfaces as a suite-wide test failure whose fix is the one pinned line, rather than as ~35 fixture rewrites. +A system-prompt change produces a normal line-oriented Markdown diff in one file per affected composition class; a tool-description change produces one pinned JSONL line per class; ordinary behavioral fixtures remain untouched. Session fixtures display tokens for omitted content, and the live uniformity guard makes each split pin authoritative for every session in its class. The pinning scenario carries one extra generated artifact whose terminal newline is canonicalized for repository hygiene. diff --git a/docs/rfc/implemented/testing/2026-07-08-shared-acp-snapshot-package.md b/docs/rfc/implemented/testing/2026-07-08-shared-acp-snapshot-package.md index 910f179313..2f631a5d8a 100644 --- a/docs/rfc/implemented/testing/2026-07-08-shared-acp-snapshot-package.md +++ b/docs/rfc/implemented/testing/2026-07-08-shared-acp-snapshot-package.md @@ -16,7 +16,7 @@ The machinery lives in [`packages/support/acp-snapshot`](../../../../packages/su **`src/normalize.ts`** — the pure normalizers, hook-free by policy: when a future event carries a new volatile field (an approval duration, say), the shared normalizer learns it in the same change, keeping one home for what "normalized" means rather than per-suite scrub extensions. -**`src/suite.ts`** — the `Scenario` type and `defineAcpSnapshotSuite(options)`, registering the per-scenario compares, record-mode fixture write-back, the header pin with its live uniformity guard, and the fixture guard block (no orphan scenario dirs, required files present, exactly one pin, non-pinning fixtures are `scrubRequestHeaders` fixed points). The pinned-header contract ([pinned-header RFC](2026-07-06-pin-request-header-content-in-one-scenario.md)) is per-suite: each suite flags exactly one `pinsHeader` scenario (the factory throws on zero, a meta-test rejects more than one; WHICH scenario pins is the table's reviewable choice), and the uniformity guard compares only that suite's sessions. The pure helpers (`childFixturePaths`, `fixtureContext`, `normalizedHeaders`, `headerDeltaCount`) are exported for direct unit coverage. +**`src/suite.ts`** — the `Scenario` type and `defineAcpSnapshotSuite(options)`, registering the per-scenario compares, record/refresh fixture write-back, the header pin with its live uniformity guard, and the fixture guard block (no orphan scenario dirs, required files present, exactly one pin per class, every JSONL a `scrubSystemPrompts` fixed point, non-pinning fixtures also `scrubRequestHeaders` fixed points). The pinned-header contract ([pinned-header RFC](2026-07-06-pin-request-header-content-in-one-scenario.md)) is per-suite: each header class flags exactly one `pinsHeader` scenario, whose `system-prompt.golden.md` and JSONL tool list split the composed header into reviewable artifacts; the uniformity guard compares both against every live header in that class. The pure helpers (`childFixturePaths`, `fixtureContext`, `normalizedHeaders`, `normalizedSystemPrompts`, `formatSystemPromptSnapshot`, `headerDeltaCount`) are exported from the module for direct unit coverage. ## Alternatives considered diff --git a/examples/acp-agent/tests/acp.snapshot.ts b/examples/acp-agent/tests/acp.snapshot.ts index 7102d8ce88..7bfc2a8c62 100644 --- a/examples/acp-agent/tests/acp.snapshot.ts +++ b/examples/acp-agent/tests/acp.snapshot.ts @@ -45,9 +45,8 @@ function snapshotModeFromEnv(value: string | undefined): SnapshotSuiteOptions['m const SCENARIOS: Scenario[] = [ { name: 'handshake', hasModelTurn: false, recorded: false }, { name: 'reject-extra-dirs', hasModelTurn: false, recorded: false }, - // text-turn is the pinned-header scenario: the minimal single text turn, - // whose fixture is the ONE place the full system prompt + tool schemas are - // committed and compared verbatim. + // text-turn is the pinned-header scenario: the minimal single text turn. + // Its system-prompt.golden.md and JSONL tool list pin the composed header. { name: 'text-turn', hasModelTurn: true, recorded: true, pinsHeader: true }, { name: 'tool-call-turn', hasModelTurn: true, recorded: true }, { name: 'fs-terminal-card', hasModelTurn: true, recorded: true }, diff --git a/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl b/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl index df7187bbbb..65c2729e0a 100644 --- a/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783611774323,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783611774323,"data":{"content":[{"type":"text","text":"Call the run_code tool (NOT the native bash tool directly) with a program that runs exactly `echo BOTH_OK` via tools.bash and returns its output. Then reply with that output only and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783611774324,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783611774325,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/2c/psb0_fmx7hbgz558xjt_f0l00000gn/T/acp-snap-cwd-52lrTl.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's text output as a string. Tool arguments must be JSON-serializable.\n- A FAILED tool call rejects with an `Error` carrying the tool's error text — `try/catch` it to handle and continue.\n- Calls execute sequentially, even under `Promise.all`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ndeclare const tools: {\n /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. */\n bash(args: {\n /** The bash command to execute. */\n command: string;\n /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n description: string;\n /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n timeoutMs?: number;\n /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n workdir?: string;\n /** Run in the background and return a task id immediately. No timeout applies. */\n run_in_background?: boolean;\n }): Promise;\n /** Ask the executor to kill a running background bash task by task id. */\n bash_kill(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output. */\n bash_output(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Edit an existing UTF-8 text file by replacing literal text. */\n edit(args: {\n /** Path to edit, resolved by the filesystem backend. */\n file_path: string;\n /** Literal text to replace. Must match exactly. */\n old_string: string;\n /** Literal replacement text. Use an empty string to delete the match. */\n new_string: string;\n /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n replace_all?: boolean;\n }): Promise;\n /** Read a UTF-8 text file and return line-numbered content. */\n read(args: {\n /** Path to read, resolved by the filesystem backend. */\n file_path: string;\n /** 1-based first line to return. Defaults to 1. */\n offset?: number;\n /** Maximum number of lines to return. Defaults to 2000. */\n limit?: number;\n }): Promise;\n /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. */\n subagent(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */\n prompt: string;\n }): Promise;\n /** Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. */\n subagent_fork(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */\n prompt: string;\n }): Promise;\n /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */\n todo_write(args: {\n /** The COMPLETE task list, replacing any previous list. */\n todos: ({\n /** What the task is — a short imperative line. */\n content: string;\n /** pending (not started) | in_progress (now) | completed (done). */\n status: \"pending\" | \"in_progress\" | \"completed\";\n })[];\n }): Promise;\n /** Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. - `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. - `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. - `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. */\n workflow(args: {\n /** The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `). */\n script: string;\n /** The workflow identity block (plain JSON — never code). */\n meta: {\n /** Short kebab-case workflow name. */\n name: string;\n /** One-line description of what the workflow does. */\n description: string;\n /** Optional guidance on when this workflow applies. */\n whenToUse?: string;\n /** Optional phase declarations matched by phase() calls. */\n phases?: {\n /** The phase title phase() calls match by exact string. */\n title: string;\n /** Optional one-line description of the phase. */\n detail?: string;\n /** Optional model override this phase is expected to use. */\n model?: string;\n }[];\n };\n /** Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}). */\n args?: Record;\n }): Promise;\n /** Create or fully replace a UTF-8 text file. */\n write(args: {\n /** Path to write, resolved by the filesystem backend. */\n file_path: string;\n /** Full UTF-8 text content to write. */\n content: string;\n }): Promise;\n}\n```","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."}},"required":["code"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783611774325,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"{{system}}","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."}},"required":["code"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783611774792,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783611774792,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783611774879,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/both-mode-turn/system-prompt.golden.md b/examples/acp-agent/tests/snapshots/both-mode-turn/system-prompt.golden.md new file mode 100644 index 0000000000..688557b132 --- /dev/null +++ b/examples/acp-agent/tests/snapshots/both-mode-turn/system-prompt.golden.md @@ -0,0 +1,133 @@ +You are an AI agent powered by the DeepSeek Harness SDK. + +You are a coding assistant powered by the deepseek-v4-flash model. Your working +directory is {{cwd}}. + +Verify your work by running the code or tests. Keep answers brief and +factual. + + +Use the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files. + +Use the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes. + +Use the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session. + +Check the [exit code: N] marker on every bash result; investigate failures before moving on. + +Use the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls. + +## Writing code for run_code + +Pass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program: + +- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools["my-tool"](args)`. Every call resolves to the tool's text output as a string. Tool arguments must be JSON-serializable. +- A FAILED tool call rejects with an `Error` carrying the tool's error text — `try/catch` it to handle and continue. +- Calls execute sequentially, even under `Promise.all`. +- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need. + +The available tools: + +```ts +declare const tools: { + /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. */ + bash(args: { + /** The bash command to execute. */ + command: string; + /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: "ls" → "List files in current directory"; "git status" → "Show working tree status"; "npm install" → "Install package dependencies". */ + description: string; + /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */ + timeoutMs?: number; + /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */ + workdir?: string; + /** Run in the background and return a task id immediately. No timeout applies. */ + run_in_background?: boolean; + }): Promise; + /** Ask the executor to kill a running background bash task by task id. */ + bash_kill(args: { + /** Task id returned by the bash tool. */ + task_id: string; + }): Promise; + /** Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output. */ + bash_output(args: { + /** Task id returned by the bash tool. */ + task_id: string; + }): Promise; + /** Edit an existing UTF-8 text file by replacing literal text. */ + edit(args: { + /** Path to edit, resolved by the filesystem backend. */ + file_path: string; + /** Literal text to replace. Must match exactly. */ + old_string: string; + /** Literal replacement text. Use an empty string to delete the match. */ + new_string: string; + /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */ + replace_all?: boolean; + }): Promise; + /** Read a UTF-8 text file and return line-numbered content. */ + read(args: { + /** Path to read, resolved by the filesystem backend. */ + file_path: string; + /** 1-based first line to return. Defaults to 1. */ + offset?: number; + /** Maximum number of lines to return. Defaults to 2000. */ + limit?: number; + }): Promise; + /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. */ + subagent(args: { + /** A short (3-5 word) description of the delegated task, for display. */ + description: string; + /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */ + prompt: string; + }): Promise; + /** Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. */ + subagent_fork(args: { + /** A short (3-5 word) description of the delegated task, for display. */ + description: string; + /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */ + prompt: string; + }): Promise; + /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */ + todo_write(args: { + /** The COMPLETE task list, replacing any previous list. */ + todos: ({ + /** What the task is — a short imperative line. */ + content: string; + /** pending (not started) | in_progress (now) | completed (done). */ + status: "pending" | "in_progress" | "completed"; + })[]; + }): Promise; + /** Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. - `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. - `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. - `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. */ + workflow(args: { + /** The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `). */ + script: string; + /** The workflow identity block (plain JSON — never code). */ + meta: { + /** Short kebab-case workflow name. */ + name: string; + /** One-line description of what the workflow does. */ + description: string; + /** Optional guidance on when this workflow applies. */ + whenToUse?: string; + /** Optional phase declarations matched by phase() calls. */ + phases?: { + /** The phase title phase() calls match by exact string. */ + title: string; + /** Optional one-line description of the phase. */ + detail?: string; + /** Optional model override this phase is expected to use. */ + model?: string; + }[]; + }; + /** Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {"files": [...]}). */ + args?: Record; + }): Promise; + /** Create or fully replace a UTF-8 text file. */ + write(args: { + /** Path to write, resolved by the filesystem backend. */ + file_path: string; + /** Full UTF-8 text content to write. */ + content: string; + }): Promise; +} +``` diff --git a/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl b/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl index 72533bcdeb..9367e2deb0 100644 --- a/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783611771394,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783611771394,"data":{"content":[{"type":"text","text":"Using ONE run_code program: call the bash tool twice — exactly `echo CODE_ONE` then exactly `echo CODE_TWO` — and return the two outputs joined with a plus sign. Then reply with that joined string only and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783611771396,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783611771396,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/2c/psb0_fmx7hbgz558xjt_f0l00000gn/T/acp-snap-cwd-BteTVR.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's text output as a string. Tool arguments must be JSON-serializable.\n- A FAILED tool call rejects with an `Error` carrying the tool's error text — `try/catch` it to handle and continue.\n- Calls execute sequentially, even under `Promise.all`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ndeclare const tools: {\n /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. */\n bash(args: {\n /** The bash command to execute. */\n command: string;\n /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n description: string;\n /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n timeoutMs?: number;\n /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n workdir?: string;\n /** Run in the background and return a task id immediately. No timeout applies. */\n run_in_background?: boolean;\n }): Promise;\n /** Ask the executor to kill a running background bash task by task id. */\n bash_kill(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output. */\n bash_output(args: {\n /** Task id returned by the bash tool. */\n task_id: string;\n }): Promise;\n /** Edit an existing UTF-8 text file by replacing literal text. */\n edit(args: {\n /** Path to edit, resolved by the filesystem backend. */\n file_path: string;\n /** Literal text to replace. Must match exactly. */\n old_string: string;\n /** Literal replacement text. Use an empty string to delete the match. */\n new_string: string;\n /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n replace_all?: boolean;\n }): Promise;\n /** Read a UTF-8 text file and return line-numbered content. */\n read(args: {\n /** Path to read, resolved by the filesystem backend. */\n file_path: string;\n /** 1-based first line to return. Defaults to 1. */\n offset?: number;\n /** Maximum number of lines to return. Defaults to 2000. */\n limit?: number;\n }): Promise;\n /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. */\n subagent(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */\n prompt: string;\n }): Promise;\n /** Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. */\n subagent_fork(args: {\n /** A short (3-5 word) description of the delegated task, for display. */\n description: string;\n /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */\n prompt: string;\n }): Promise;\n /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */\n todo_write(args: {\n /** The COMPLETE task list, replacing any previous list. */\n todos: ({\n /** What the task is — a short imperative line. */\n content: string;\n /** pending (not started) | in_progress (now) | completed (done). */\n status: \"pending\" | \"in_progress\" | \"completed\";\n })[];\n }): Promise;\n /** Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. - `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. - `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. - `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. */\n workflow(args: {\n /** The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `). */\n script: string;\n /** The workflow identity block (plain JSON — never code). */\n meta: {\n /** Short kebab-case workflow name. */\n name: string;\n /** One-line description of what the workflow does. */\n description: string;\n /** Optional guidance on when this workflow applies. */\n whenToUse?: string;\n /** Optional phase declarations matched by phase() calls. */\n phases?: {\n /** The phase title phase() calls match by exact string. */\n title: string;\n /** Optional one-line description of the phase. */\n detail?: string;\n /** Optional model override this phase is expected to use. */\n model?: string;\n }[];\n };\n /** Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}). */\n args?: Record;\n }): Promise;\n /** Create or fully replace a UTF-8 text file. */\n write(args: {\n /** Path to write, resolved by the filesystem backend. */\n file_path: string;\n /** Full UTF-8 text content to write. */\n content: string;\n }): Promise;\n}\n```","tools":[{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."}},"required":["code"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783611771396,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"{{system}}","tools":[{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."}},"required":["code"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783611771869,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783611771869,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783611771978,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/code-mode-turn/system-prompt.golden.md b/examples/acp-agent/tests/snapshots/code-mode-turn/system-prompt.golden.md new file mode 100644 index 0000000000..688557b132 --- /dev/null +++ b/examples/acp-agent/tests/snapshots/code-mode-turn/system-prompt.golden.md @@ -0,0 +1,133 @@ +You are an AI agent powered by the DeepSeek Harness SDK. + +You are a coding assistant powered by the deepseek-v4-flash model. Your working +directory is {{cwd}}. + +Verify your work by running the code or tests. Keep answers brief and +factual. + + +Use the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files. + +Use the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes. + +Use the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session. + +Check the [exit code: N] marker on every bash result; investigate failures before moving on. + +Use the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls. + +## Writing code for run_code + +Pass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program: + +- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools["my-tool"](args)`. Every call resolves to the tool's text output as a string. Tool arguments must be JSON-serializable. +- A FAILED tool call rejects with an `Error` carrying the tool's error text — `try/catch` it to handle and continue. +- Calls execute sequentially, even under `Promise.all`. +- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need. + +The available tools: + +```ts +declare const tools: { + /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`. */ + bash(args: { + /** The bash command to execute. */ + command: string; + /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: "ls" → "List files in current directory"; "git status" → "Show working tree status"; "npm install" → "Install package dependencies". */ + description: string; + /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */ + timeoutMs?: number; + /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */ + workdir?: string; + /** Run in the background and return a task id immediately. No timeout applies. */ + run_in_background?: boolean; + }): Promise; + /** Ask the executor to kill a running background bash task by task id. */ + bash_kill(args: { + /** Task id returned by the bash tool. */ + task_id: string; + }): Promise; + /** Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output. */ + bash_output(args: { + /** Task id returned by the bash tool. */ + task_id: string; + }): Promise; + /** Edit an existing UTF-8 text file by replacing literal text. */ + edit(args: { + /** Path to edit, resolved by the filesystem backend. */ + file_path: string; + /** Literal text to replace. Must match exactly. */ + old_string: string; + /** Literal replacement text. Use an empty string to delete the match. */ + new_string: string; + /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */ + replace_all?: boolean; + }): Promise; + /** Read a UTF-8 text file and return line-numbered content. */ + read(args: { + /** Path to read, resolved by the filesystem backend. */ + file_path: string; + /** 1-based first line to return. Defaults to 1. */ + offset?: number; + /** Maximum number of lines to return. Defaults to 2000. */ + limit?: number; + }): Promise; + /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. */ + subagent(args: { + /** A short (3-5 word) description of the delegated task, for display. */ + description: string; + /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */ + prompt: string; + }): Promise; + /** Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. */ + subagent_fork(args: { + /** A short (3-5 word) description of the delegated task, for display. */ + description: string; + /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */ + prompt: string; + }): Promise; + /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */ + todo_write(args: { + /** The COMPLETE task list, replacing any previous list. */ + todos: ({ + /** What the task is — a short imperative line. */ + content: string; + /** pending (not started) | in_progress (now) | completed (done). */ + status: "pending" | "in_progress" | "completed"; + })[]; + }): Promise; + /** Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. - `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. - `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. - `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. */ + workflow(args: { + /** The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `). */ + script: string; + /** The workflow identity block (plain JSON — never code). */ + meta: { + /** Short kebab-case workflow name. */ + name: string; + /** One-line description of what the workflow does. */ + description: string; + /** Optional guidance on when this workflow applies. */ + whenToUse?: string; + /** Optional phase declarations matched by phase() calls. */ + phases?: { + /** The phase title phase() calls match by exact string. */ + title: string; + /** Optional one-line description of the phase. */ + detail?: string; + /** Optional model override this phase is expected to use. */ + model?: string; + }[]; + }; + /** Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {"files": [...]}). */ + args?: Record; + }): Promise; + /** Create or fully replace a UTF-8 text file. */ + write(args: { + /** Path to write, resolved by the filesystem backend. */ + file_path: string; + /** Full UTF-8 text content to write. */ + content: string; + }): Promise; +} +``` diff --git a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl index 8475c97896..3fcba5fd1c 100644 --- a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl +++ b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl @@ -2,7 +2,7 @@ {"type":"turn/start","seq":0,"time":1783600629541,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} {"type":"user/message","seq":1,"time":1783600629541,"data":{"content":[{"type":"text","text":"Reply with exactly the word: PONG. Do not use any tools."}],"source":{"kind":"user"}},"surfaceOp":"append"} {"type":"step/start","seq":2,"time":1783600629542,"data":{"turn":1,"step":1}} -{"type":"request/header","seq":3,"time":1783600629542,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /var/folders/bn/vj1dvck95yd5jh3x4wskflxm0000gn/T/acp-snap-cwd-ka5r8w.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} +{"type":"request/header","seq":3,"time":1783600629542,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"{{system}}","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; poll it with `bash_output` and stop it with `bash_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately. No timeout applies."}},"required":["command","description"]}},{"name":"bash_kill","description":"Ask the executor to kill a running background bash task by task id.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"bash_output","description":"Read new output from a background bash task started with `bash` + `run_in_background`. Returns only output produced since the previous bash_output call, plus the task status. Tasks keep running while you do other work; poll again later for more output.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the bash tool."}},"required":["task_id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."}},"required":["description","prompt"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return ` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return `)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]})."}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}} {"type":"assistant/chunk","seq":4,"time":1783600630819,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} {"type":"assistant/chunk","seq":5,"time":1783600630820,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}} {"type":"assistant/chunk","seq":6,"time":1783600630822,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}} diff --git a/examples/acp-agent/tests/snapshots/text-turn/system-prompt.golden.md b/examples/acp-agent/tests/snapshots/text-turn/system-prompt.golden.md new file mode 100644 index 0000000000..edaa7d5cc9 --- /dev/null +++ b/examples/acp-agent/tests/snapshots/text-turn/system-prompt.golden.md @@ -0,0 +1,18 @@ +You are an AI agent powered by the DeepSeek Harness SDK. + +You are a coding assistant powered by the deepseek-v4-flash model. Your working +directory is {{cwd}}. + +Verify your work by running the code or tests. Keep answers brief and +factual. + + +Use the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files. + +Use the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes. + +Use the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session. + +Check the [exit code: N] marker on every bash result; investigate failures before moving on. + +Use the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls. diff --git a/packages/support/acp-snapshot/README.md b/packages/support/acp-snapshot/README.md index 8ff2fe1413..2c37da4177 100644 --- a/packages/support/acp-snapshot/README.md +++ b/packages/support/acp-snapshot/README.md @@ -5,8 +5,8 @@ The ACP snapshot suite kit: the shared machinery behind the keyless snapshot tie Three layers, importable separately: - **`runScenario` (harness)** — boots the real agent bin as a subprocess via tsx (unbuilt, Loader path), drives it over ACP JSON-RPC stdio from a deterministic `input.json` script, tees raw stdout for the golden + purity check, and harvests every persisted session JSONL (parent + subagent children, primary-first) after a graceful stdin-EOF shutdown. Parameterized by `AgentUnderTest` (`binScript`, `configPath`, `tsconfigPath` — absolute paths; the subprocess cwd is a temp dir outside the repo). -- **Normalizers** — pure functions turning the two captured surfaces into stable text: `normalizeStdout` (JSON-RPC ids → first-seen sequence; UUIDs/cwd → tokens; doubles as the stdout-purity check), `normalizeSessionLog` (times zeroed, `seq` kept), and the composable `scrubRequestHeaders` (header bulk → `{{system}}`/`{{tools}}`, structure kept — [pinned-header RFC](../../../docs/rfc/implemented/testing/2026-07-06-pin-request-header-content-in-one-scenario.md)). -- **`defineAcpSnapshotSuite` (factory)** — registers the whole describe/it tree for a scenario table: per-scenario golden + re-persisted-log compares, record/refresh fixture write-back, the per-header-class pin with its live uniformity guard, and the fixture guard block (no orphan scenario dirs, required files present, exactly one pin per class, pinning fixtures well-formed, non-pinning fixtures header-scrubbed). Must be called at vitest collection time. +- **Normalizers** — pure functions turning the two captured surfaces into stable text: `normalizeStdout` (JSON-RPC ids → first-seen sequence; UUIDs/cwd → tokens; doubles as the stdout-purity check), `normalizeSessionLog` (times zeroed, `seq` kept), `scrubSystemPrompts` (prompt text → `{{system}}` in every JSONL), and `scrubRequestHeaders` (the remaining header bulk → `{{tools}}`/`{{messagePrefix}}` outside each pin, structure kept — [pinned-header RFC](../../../docs/rfc/implemented/testing/2026-07-06-pin-request-header-content-in-one-scenario.md)). +- **`defineAcpSnapshotSuite` (factory)** — registers the whole describe/it tree for a scenario table: per-scenario golden + re-persisted-log compares, record/refresh fixture write-back, the per-header-class pin (`system-prompt.golden.md` plus the JSONL's full tool schemas) with its live uniformity guard, and the fixture guard block (no orphan scenario dirs, required files present, exactly one pin per class, every JSONL prompt-scrubbed, non-pinning fixtures fully header-scrubbed). Must be called at vitest collection time. A consuming `*.snapshot.ts` is the scenario table plus one factory call: @@ -35,8 +35,8 @@ defineAcpSnapshotSuite({ }) ``` -A scenario booting a differently-composed tree sets its own `configPath` (an overlay whose basename still ends in `cordis.yml`, so the bin's replay swap finds the sibling `*cordis.snapshot.yml`) and, when that composition changes the request header, its own `headerClass` with its own pinning scenario — the acp-agent example's Code Mode scenarios are the template. +A scenario booting a differently-composed tree sets its own `configPath` (an overlay whose basename still ends in `cordis.yml`, so the bin's replay swap finds the sibling `*cordis.snapshot.yml`) and, when that composition changes the request header, its own `headerClass` with its own pinning scenario — the acp-agent example's Code Mode scenarios are the template. Each pinning directory's generated `system-prompt.golden.md` is the reviewable snapshot of the normalized composed prompt; `session.jsonl` stores `"system":"{{system}}"` while retaining the complete tool list. -The example also ships a `cordis.snapshot.yml` replay overlay next to its `cordis.yml` (the bin swaps them under `DSH_SNAPSHOT=replay` — [single-source replay config RFC](../../../docs/rfc/implemented/testing/2026-07-04-single-source-acp-replay-config.md)); replay fixtures are served by [`dsh-llm-replay`](../llm-replay/README.md), which this package points at via the `DSH_SNAPSHOT_*` env vars it sets on the child. `pnpm run test:snapshot:record` calls the live LLM and rewrites the recorded scenarios' model fixtures; `pnpm run test:snapshot:refresh` stays keyless, runs the replay overlay, and rewrites stdout plus comparable session-log goldens from the committed model scripts. Fixture roles, record/replay/refresh semantics, and scenario-table fields are documented on `Scenario` and in the [snapshot RFC](../../../docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md). +The example also ships a `cordis.snapshot.yml` replay overlay next to its `cordis.yml` (the bin swaps them under `DSH_SNAPSHOT=replay` — [single-source replay config RFC](../../../docs/rfc/implemented/testing/2026-07-04-single-source-acp-replay-config.md)); replay fixtures are served by [`dsh-llm-replay`](../llm-replay/README.md), which this package points at via the `DSH_SNAPSHOT_*` env vars it sets on the child. `pnpm run test:snapshot:record` calls the live LLM and rewrites the recorded scenarios' model fixtures; `pnpm run test:snapshot:refresh` stays keyless, runs the replay overlay, and rewrites stdout, comparable session-log goldens, and each pin's Markdown prompt snapshot from the committed model scripts. Fixture roles, record/replay/refresh semantics, and scenario-table fields are documented on `Scenario` and in the [snapshot RFC](../../../docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md). Constraints: `suite.ts` imports vitest, so the package is importable only inside a vitest run (the harness and normalizers have no such dependency but ship from the same entry). ACP-specific by design — the harness speaks the SDK's `ClientSideConnection`. Permission round-trips are scriptable: `InputScript.permissionAnswers` is a FIFO queue of option-kind selections (`allow_once`, `reject_once`, …) the client maps to the agent-issued `optionId` at answer time; an absent or exhausted queue answers `cancelled`, and a kind the request never offered rejects the run (the agent is answered `cancelled`, so a tolerant agent cannot absorb the scenario bug). diff --git a/packages/support/acp-snapshot/src/index.ts b/packages/support/acp-snapshot/src/index.ts index bbe74030f2..74bee95385 100644 --- a/packages/support/acp-snapshot/src/index.ts +++ b/packages/support/acp-snapshot/src/index.ts @@ -3,7 +3,7 @@ * tier (`pnpm run test:snapshot`). Three layers, composable per example: * the subprocess scenario harness ({@link runScenario}), the pure golden * normalizers ({@link normalizeStdout} / {@link normalizeSessionLog} / - * {@link scrubRequestHeaders}), and the suite factory + * {@link scrubRequestHeaders} / {@link scrubSystemPrompts}), and the suite factory * ({@link defineAcpSnapshotSuite}) that registers a scenario table as a full * describe/it tree. An example's `*.snapshot.ts` supplies only its * {@link AgentUnderTest} paths, its snapshots directory, and its @@ -29,6 +29,7 @@ export { normalizeSessionLog, normalizeStdout, scrubRequestHeaders, + scrubSystemPrompts, type NormalizeContext, } from './normalize.ts' export { diff --git a/packages/support/acp-snapshot/src/normalize.ts b/packages/support/acp-snapshot/src/normalize.ts index 017dd504b3..a68fcf83d3 100644 --- a/packages/support/acp-snapshot/src/normalize.ts +++ b/packages/support/acp-snapshot/src/normalize.ts @@ -12,14 +12,14 @@ * `durationMs` (wall-clock hook runtime) → 0. NOT scrubbed: the log's `seq` * (deterministic — `seq = log.length`, part of the event-log contract). * - * A separate, composable normalizer — {@link scrubRequestHeaders} — replaces - * the bulky request-header CONTENT (the composed system prompt, the tool - * schema list, and the session prefix) with - * `{{system}}`/`{{tools}}`/`{{messagePrefix}}` tokens. It is deliberately NOT - * folded into {@link normalizeSessionLog}: each suite's one header-pinning - * scenario compares that content verbatim, every other scenario composes the - * scrub in (the `pinsHeader` flag on the scenario table, consumed by the suite - * factory in ./suite.ts; see the pinned-header RFC, + * Separate, composable normalizers keep bulky request-header content out of + * session fixtures. {@link scrubSystemPrompts} replaces the composed system + * prompt in EVERY fixture; {@link scrubRequestHeaders} additionally replaces + * tool schemas and the session prefix outside each suite's header-pinning + * scenario. They are deliberately NOT folded into + * {@link normalizeSessionLog}: the suite factory composes the right scrub for + * each scenario and snapshots the pin's actual prompt as Markdown (see the + * pinned-header RFC, * docs/rfc/implemented/testing/2026-07-06-pin-request-header-content-in-one-scenario.md). * * See docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md. @@ -135,37 +135,37 @@ export function normalizeSessionLog(rawLog: string, ctx: NormalizeContext): stri } /** - * Replace request-header CONTENT in a session JSONL with stable tokens, - * keeping its structure: a `request/header` event's `data.header.system` → - * `{{system}}`, `data.header.tools` → `{{tools}}`, and - * `data.header.messagePrefix` → one `{{messagePrefix}}` token per message - * (the session prefix is model-visible bulk — an AGENTS digest, a skills - * catalog — so its COUNT stays a structural fact while its text never lands - * in a fixture); a - * `request/header-delta` event keeps every structural fact — the system - * delta's `keepStart`/`keepEnd` line positions and inserted-line COUNT (one - * `{{system}}` token per inserted line), the tools delta's - * added/removed/changed tool NAMES, the prefix replacement's message COUNT — - * and tokenizes only the bulk (prompt - * text; each added/changed schema's fields other than `name` → `{{tools}}`; - * each replacement prefix message → `{{messagePrefix}}`), - * so two different deltas still compare different. - * Absent fields stay absent — WHETHER a header carried a system prompt, - * tools, or a prefix is behavior and stays visible; `config` and `reason` - * are small and - * stable, so they stay verbatim (a model swap churns every fixture by design - * — it invalidates the recorded responses; a prompt/schema edit churns none — - * replay never reads this content, see dsh-llm-replay). - * - * Only lines with something to scrub are re-serialized; every other line - * passes through byte-for-byte, so the transform is idempotent and applying - * it to an already-scrubbed fixture is a no-op — the on-disk-fixtures guard - * in ./suite.ts relies on exactly that. + * Replace system-prompt content in request headers and header deltas with + * `{{system}}` tokens while retaining field presence and delta structure. + * Other header content stays verbatim, so a header-pinning fixture can keep + * its complete tool schemas while every JSONL fixture omits the prompt text. + * Lines without a system payload pass through byte-for-byte; the transform is + * idempotent. * * @param rawLog The raw session `.jsonl` content. - * @returns The JSONL with header content tokenized, other lines byte-identical. + * @returns The JSONL with system-prompt content tokenized. + */ +export function scrubSystemPrompts(rawLog: string): string { + return scrubHeaderContent(rawLog, false) +} + +/** + * Replace all bulky request-header content in a session JSONL with stable + * tokens. This includes the system-prompt fields handled by + * {@link scrubSystemPrompts}, tool schemas, and session-prefix messages. It + * keeps system-delta line positions and arity, tool-delta names, prefix + * message counts, field presence, config, and reason. Lines without content + * to scrub pass through byte-for-byte, and the transform is idempotent. + * + * @param rawLog The raw session `.jsonl` content. + * @returns The JSONL with all header bulk tokenized, other lines byte-identical. */ export function scrubRequestHeaders(rawLog: string): string { + return scrubHeaderContent(rawLog, true) +} + +/** Transform header content, optionally including tool schemas and the session prefix. */ +function scrubHeaderContent(rawLog: string, scrubToolsAndPrefix: boolean): string { const lines = rawLog.split('\n') const out = lines.map((line) => { if (line.trim().length === 0) return line @@ -175,11 +175,14 @@ export function scrubRequestHeaders(rawLog: string): string { if (record.type === 'request/header') { const header = data.header as Record | null | undefined if (header === null || typeof header !== 'object') return line - if (!('system' in header) && !('tools' in header) && !('messagePrefix' in header)) return line - if ('system' in header) header.system = SYSTEM - if ('tools' in header) header.tools = TOOLS - if (Array.isArray(header.messagePrefix)) header.messagePrefix = header.messagePrefix.map(() => MESSAGE_PREFIX) - return JSON.stringify(record) + let touched = false + if ('system' in header) { header.system = SYSTEM; touched = true } + if (scrubToolsAndPrefix && 'tools' in header) { header.tools = TOOLS; touched = true } + if (scrubToolsAndPrefix && Array.isArray(header.messagePrefix)) { + header.messagePrefix = header.messagePrefix.map(() => MESSAGE_PREFIX) + touched = true + } + return touched ? JSON.stringify(record) : line } if (record.type === 'request/header-delta') { let touched = false @@ -189,11 +192,11 @@ export function scrubRequestHeaders(rawLog: string): string { touched = true } const tools = data.tools as Record | null | undefined - if (tools !== null && typeof tools === 'object') { + if (scrubToolsAndPrefix && tools !== null && typeof tools === 'object') { if (Array.isArray(tools.added)) { tools.added = tools.added.map(scrubToolSchema); touched = true } if (Array.isArray(tools.changed)) { tools.changed = tools.changed.map(scrubToolSchema); touched = true } } - if (Array.isArray(data.messagePrefix)) { + if (scrubToolsAndPrefix && Array.isArray(data.messagePrefix)) { data.messagePrefix = data.messagePrefix.map(() => MESSAGE_PREFIX) touched = true } diff --git a/packages/support/acp-snapshot/src/suite.ts b/packages/support/acp-snapshot/src/suite.ts index 27de939d3d..27e6934058 100644 --- a/packages/support/acp-snapshot/src/suite.ts +++ b/packages/support/acp-snapshot/src/suite.ts @@ -10,15 +10,14 @@ * (recorded scenarios) and the expected produced log (both sides normalized * before comparing). * - * Request-header content (the composed system prompt + tool schemas riding on - * `request/header` events) is pinned by exactly ONE scenario per HEADER CLASS - * — scenarios that boot the same config compose the same header; each class's - * `pinsHeader` scenario commits it verbatim — and scrubbed to - * `{{system}}`/`{{tools}}` tokens in every other fixture and compare, so a - * prompt or tool-schema edit churns one committed line per class instead of - * every fixture. A per-run uniformity guard keeps each pin sound: every live - * header must equal its class's pinned one, and no header-delta may appear - * outside a pinning scenario (see the pinned-header RFC, + * Request-header content is pinned by exactly ONE scenario per HEADER CLASS — + * scenarios that boot the same config compose the same header. Every JSONL + * fixture scrubs the system prompt to `{{system}}`; each class's pinning + * scenario stores the readable prompt in `system-prompt.golden.md` and keeps its full + * tool schemas in `session.jsonl`, while every other fixture also scrubs tools + * to `{{tools}}`. A per-run uniformity guard compares both artifacts against + * every live header and forbids unrepresented header deltas (see the + * pinned-header RFC, * docs/rfc/implemented/testing/2026-07-06-pin-request-header-content-in-one-scenario.md). * * `pnpm run test:snapshot:record` (DSH_SNAPSHOT=record + -u) re-records the @@ -37,7 +36,16 @@ import { existsSync } from 'node:fs' import { join } from 'node:path' import { describe, expect, it } from 'vitest' import { type AgentUnderTest, type HarvestedLog, type InputScript, runScenario } from './harness.ts' -import { type NormalizeContext, normalizeSessionLog, normalizeStdout, scrubRequestHeaders } from './normalize.ts' +import { + type NormalizeContext, + normalizeSessionLog, + normalizeStdout, + scrubRequestHeaders, + scrubSystemPrompts, +} from './normalize.ts' + +/** The readable system-prompt snapshot beside each header-pinning fixture. */ +const SYSTEM_PROMPT_SNAPSHOT = 'system-prompt.golden.md' /** A snapshot scenario and how its fixtures are produced. */ export interface Scenario { @@ -81,14 +89,13 @@ export interface Scenario { */ childSessions?: number /** - * Whether THIS scenario's fixtures keep the full request-header content (the - * composed system prompt and tool schema list on `request/header` / - * `request/header-delta` events) and compare it verbatim. Exactly one - * scenario per HEADER CLASS ({@link headerClass}) pins it; every other - * scenario of that class stores and compares that content as - * `{{system}}`/`{{tools}}` tokens ({@link scrubRequestHeaders}), - * so a system prompt or tool-schema change shows up as ONE committed-fixture - * diff per class, not one per scenario. One pin per class suffices because + * Whether THIS scenario pins its header class's model-facing request-header + * content. Its actual composed prompt is maintained as a readable + * `system-prompt.golden.md`; its JSONL keeps full tool schemas but stores the prompt + * as `{{system}}`. Every other scenario of the class stores tools as + * `{{tools}}` too ({@link scrubRequestHeaders}). A prompt or tool-schema + * change therefore shows up in one focused artifact per class, not every + * session fixture. One pin per class suffices because * header composition is class-uniform (parent, spawn child, and fork child * all compose the same prompt-modulo-cwd and the same tools) — and that * premise is ASSERTED, not assumed: every non-pinning run's live headers @@ -124,7 +131,7 @@ export interface SnapshotSuiteOptions { agent: AgentUnderTest /** Absolute path of the suite's `snapshots/` directory (one subdir per scenario). */ snapshotsDir: string - /** The scenario table; exactly one entry must set `pinsHeader`. */ + /** The scenario table; exactly one entry per header class must set `pinsHeader`. */ scenarios: Scenario[] /** * `replay` (keyless, the default tier), `record` (live API; re-records the @@ -192,6 +199,35 @@ export function normalizedHeaders(rawLog: string, ctx: NormalizeContext): unknow .map(record => record.data?.header) } +/** + * The normalized string-valued system prompts carried by request headers in a + * session JSONL, in log order. Headers without a string prompt are omitted so + * callers can assert one prompt per header explicitly. + * + * @param rawLog The session `.jsonl` content to inspect. + * @param ctx The volatile values of the run that produced it. + * @returns The normalized system prompts, in header order. + */ +export function normalizedSystemPrompts(rawLog: string, ctx: NormalizeContext): string[] { + return normalizedHeaders(rawLog, ctx).flatMap((header) => { + if (header === null || typeof header !== 'object') return [] + const system = (header as { system?: unknown }).system + return typeof system === 'string' ? [system] : [] + }) +} + +/** + * Render a normalized prompt as a repository-friendly Markdown snapshot. + * Prompt text is unchanged except that a missing terminal newline is added so + * the committed file follows the repository newline contract. + * + * @param prompt The normalized system prompt. + * @returns Markdown snapshot text ending in a newline. + */ +export function formatSystemPromptSnapshot(prompt: string): string { + return prompt.endsWith('\n') ? prompt : `${prompt}\n` +} + /** * Count the `request/header-delta` events in a session JSONL. * @@ -289,7 +325,8 @@ export function stabilizeRefreshLog(fresh: string, existing: string, replacement * Register the suite: one `describe` per scenario (the golden/log compares and * the header-uniformity guard) plus the fixture guard block (no orphan * scenario dirs, required files present, exactly one pin per header class, - * pinning fixtures well-formed, non-pinning fixtures header-scrubbed). Must + * pinning fixtures well-formed, every JSONL prompt-scrubbed, non-pinning + * fixtures fully header-scrubbed). Must * run at vitest collection time — it calls `describe`/`it`. Throws * immediately if any header class lacks a pinning scenario or carries two * (the uniformity guard needs exactly one comparison anchor per class). @@ -364,11 +401,12 @@ export function defineAcpSnapshotSuite(options: SnapshotSuiteOptions): void { // keyless replay run for every comparable log, including authored // scenarios that live record deliberately skips. The primary goes to // session.jsonl, each child to session..jsonl in harvest order. A - // non-pinning scenario's fixtures are written header-scrubbed, so a - // re-record/refresh can never smuggle the full prompt/schema content - // back into every fixture. + // Every fixture is written with its system prompt scrubbed. A pinning + // scenario keeps the remaining header content (notably tool schemas); + // every other scenario scrubs that bulk too. Record/refresh therefore + // cannot smuggle prompt text back into JSONL or duplicate schemas. const scrub = scenario.pinsHeader === true - ? (log: string): string => log + ? scrubSystemPrompts : scrubRequestHeaders const fixtureFiles = ['session.jsonl', ...Array.from({ length: childSessions }, (_, i) => `session.${i + 1}.jsonl`)] const existingFixtures = REFRESHING @@ -391,6 +429,16 @@ export function defineAcpSnapshotSuite(options: SnapshotSuiteOptions): void { REFRESHING ? stabilizeRefreshLog(child, existingFixtures[i] as string, replacements) : child, )) } + if (scenario.pinsHeader === true) { + const prompts = result.sessionLogs.flatMap(log => normalizedSystemPrompts(log.content, ctx)) + expect(prompts.length, `${mode} produced no system prompt to snapshot`).toBeGreaterThan(0) + const snapshot = formatSystemPromptSnapshot(prompts[0] as string) + for (const prompt of prompts) { + expect(formatSystemPromptSnapshot(prompt), 'the pinning run produced divergent system prompts') + .toEqual(snapshot) + } + await writeFile(join(dir, SYSTEM_PROMPT_SNAPSHOT), snapshot) + } } const stdout = normalizeStdout(result.rawStdout, ctx) @@ -406,12 +454,10 @@ export function defineAcpSnapshotSuite(options: SnapshotSuiteOptions): void { // 1:1. Each side passes through normalizeSessionLog, scrubbed against ITS // OWN volatile values — the live run's via `ctx`, the committed fixture's // via its own header (a committed file cannot share the live run's ids). - // Unless this scenario pins the header, both sides ALSO pass through - // scrubRequestHeaders: the live log carries the real prompt/schemas, the - // fixture carries the `{{system}}`/`{{tools}}` tokens, and the scrub is - // idempotent — so the compare checks the header's presence, position, - // reason, and config, but not its bulk content (pinned once, in the - // `pinsHeader` scenario). + // Both sides pass through the scenario's idempotent scrub: every live + // prompt becomes the fixture's `{{system}}`; non-pinning scenarios + // additionally tokenize tools/prefix. The dedicated header guard below + // compares those omitted values against their class's pin artifacts. expect(result.sessionLogs.length, 'this scenario must persist a session log').toBe(childSessions + 1) for (let i = 0; i < fixtureFiles.length; i++) { const harvested = scrub((result.sessionLogs[i] as HarvestedLog).content) @@ -421,34 +467,30 @@ export function defineAcpSnapshotSuite(options: SnapshotSuiteOptions): void { } } - // Header-uniformity guard: a class's single pin is sound only while - // every session in that class composes the SAME header and keeps it - // for the whole run. Assert both halves live. (1) Every - // request/header the run produced (parent, spawn child, fork child, - // initial or resume) must equal the CLASS's pinned fixture's header - // after each side is normalized against its own volatile values. - // (2) No request/header-delta may appear at all — a mid-run header - // change diverges from the pin by construction, and its content - // would be invisible under the scrub. If either fails, either the - // header changed (update the pin: re-record or hand-edit the pinning - // scenario's fixture) or composition became session-dependent by - // design (give the divergent shape its own pinning scenario and - // class). - if (scenario.pinsHeader !== true) { - /* v8 ignore next -- construction guarantees the pin exists; a miss would fail the one-header assertion loudly. */ - const pinningScenario = pinningByClass.get(classOf(scenario)) ?? scenario - const pinnedFixture = await readFile(join(snapshotsDir, pinningScenario.name, 'session.jsonl'), 'utf8') - const pinned = normalizedHeaders(pinnedFixture, fixtureContext(pinnedFixture)) - expect(pinned.length, `the pinning fixture (${pinningScenario.name}) must carry exactly one request/header`) - .toBe(1) - for (const log of result.sessionLogs) { - expect(headerDeltaCount(log.content), `session ${log.id}: a request/header-delta in a non-pinning scenario`) - .toBe(0) - const headers = normalizedHeaders(log.content, ctx) - for (const [k, header] of headers.entries()) { - expect(header, `session ${log.id}: request/header #${k + 1} diverged from the pinned (${pinningScenario.name}) header`) - .toEqual(pinned[0]) - } + // Header-uniformity guard: every live header in a class must equal the + // class pin split across its JSONL header (system token + real tools) + // and readable Markdown prompt. No header delta is representable by + // those two static artifacts, so any delta fails loud. + /* v8 ignore next -- construction guarantees the pin exists; a miss would fail the one-header assertion loudly. */ + const pinningScenario = pinningByClass.get(classOf(scenario)) ?? scenario + const pinningDir = join(snapshotsDir, pinningScenario.name) + const pinnedFixture = await readFile(join(pinningDir, 'session.jsonl'), 'utf8') + const pinned = normalizedHeaders(pinnedFixture, fixtureContext(pinnedFixture)) + const promptSnapshot = await readFile(join(pinningDir, SYSTEM_PROMPT_SNAPSHOT), 'utf8') + expect(pinned.length, `the pinning fixture (${pinningScenario.name}) must carry exactly one request/header`) + .toBe(1) + for (const log of result.sessionLogs) { + expect(headerDeltaCount(log.content), `session ${log.id}: a request/header-delta is not represented by the class pin`) + .toBe(0) + const headers = normalizedHeaders(scrubSystemPrompts(log.content), ctx) + const prompts = normalizedSystemPrompts(log.content, ctx) + expect(prompts.length, `session ${log.id}: every request/header must carry a string system prompt`) + .toBe(headers.length) + for (const [k, header] of headers.entries()) { + expect(header, `session ${log.id}: request/header #${k + 1} diverged from the pinned (${pinningScenario.name}) header`) + .toEqual(pinned[0]) + expect(formatSystemPromptSnapshot(prompts[k] as string), `session ${log.id}: system prompt #${k + 1} diverged from ${pinningScenario.name}/${SYSTEM_PROMPT_SNAPSHOT}`) + .toEqual(promptSnapshot) } } }) @@ -479,13 +521,15 @@ export function defineAcpSnapshotSuite(options: SnapshotSuiteOptions): void { // `overridden` flag: required when set, forbidden when not — the harness // forwards the file purely on existence, so an unregistered stray sidecar // would silently replace the derived script. - for (const { name, overridden, childSessions } of scenarios) { + for (const { name, overridden, childSessions, pinsHeader } of scenarios) { const dir = join(snapshotsDir, name) expect(existsSync(join(dir, 'input.json')), `${name}/input.json`).toBe(true) expect(existsSync(join(dir, 'stdout.golden.jsonl')), `${name}/stdout.golden.jsonl`).toBe(true) expect(existsSync(join(dir, 'session.jsonl')), `${name}/session.jsonl`).toBe(true) expect(existsSync(join(dir, 'replay.override.json')), `${name}/replay.override.json presence must match \`overridden\``) .toBe(overridden === true) + expect(existsSync(join(dir, SYSTEM_PROMPT_SNAPSHOT)), `${name}/${SYSTEM_PROMPT_SNAPSHOT} presence must match \`pinsHeader\``) + .toBe(pinsHeader === true) // A nested-agent scenario ships one child fixture per recorded subagent // session (`session.1.jsonl` …), the replay source for that child session. for (const childFixture of childFixturePaths(dir, childSessions ?? 0)) { @@ -511,7 +555,7 @@ export function defineAcpSnapshotSuite(options: SnapshotSuiteOptions): void { } }) - it('every pinning fixture carries exactly one request/header and no deltas', async () => { + it('every pinning fixture carries exactly one request/header, one readable prompt, and no deltas', async () => { // The live uniformity guard runs only in NON-pinning scenarios, so a // class made of just its pinning scenario would otherwise accept a // re-recorded pin with several headers or a mid-run header-delta — @@ -520,19 +564,18 @@ export function defineAcpSnapshotSuite(options: SnapshotSuiteOptions): void { for (const scenario of pinningByClass.values()) { const fixture = await readFile(join(snapshotsDir, scenario.name, 'session.jsonl'), 'utf8') const headers = normalizedHeaders(fixture, fixtureContext(fixture)) + const promptSnapshot = await readFile(join(snapshotsDir, scenario.name, SYSTEM_PROMPT_SNAPSHOT), 'utf8') expect(headers.length, `${scenario.name}: a pinning fixture must carry exactly one request/header`).toBe(1) + expect(promptSnapshot.length, `${scenario.name}/${SYSTEM_PROMPT_SNAPSHOT} must not be empty`).toBeGreaterThan(0) + expect(promptSnapshot.endsWith('\n'), `${scenario.name}/${SYSTEM_PROMPT_SNAPSHOT} must end in a newline`).toBe(true) expect(headerDeltaCount(fixture), `${scenario.name}: a pinning fixture must carry no request/header-delta`).toBe(0) } }) - it('committed fixtures carry request-header content ONLY in the pinning scenario', async () => { - // The whole point of the pin: a system-prompt or tool-schema change must - // churn exactly one committed line. A non-pinning fixture that carries the - // full header (a hand-recorded file, or a header line hand-edited out of - // its canonical JSON form) silently reopens the suite-wide churn, so fail - // loud here: every non-pinning session*.jsonl must be a fixed point of - // scrubRequestHeaders (apply the scrub to fix a violation), and the - // pinning scenario's fixtures must NOT be (their content IS the pin). + it('every committed JSONL omits system prompts and only pinning fixtures keep other header bulk', async () => { + // System prompts always live in the readable Markdown artifact. Header + // pins keep tool schemas/prefixes in JSONL; every other fixture tokenizes + // all header bulk. Fixed-point checks make both storage rules fail loud. for (const scenario of scenarios) { const dir = join(snapshotsDir, scenario.name) const files = [ @@ -541,8 +584,10 @@ export function defineAcpSnapshotSuite(options: SnapshotSuiteOptions): void { ] for (const file of files) { const fixture = await readFile(join(dir, file), 'utf8') + expect(scrubSystemPrompts(fixture), `${scenario.name}/${file} carries an unscrubbed system prompt`) + .toEqual(fixture) if (scenario.pinsHeader === true) { - expect(scrubRequestHeaders(fixture), `${scenario.name}/${file} must PIN the full header content`) + expect(scrubRequestHeaders(fixture), `${scenario.name}/${file} must pin the non-system header content`) .not.toEqual(fixture) } else { expect(scrubRequestHeaders(fixture), `${scenario.name}/${file} carries unscrubbed header content`) diff --git a/packages/support/acp-snapshot/tests/fixtures/record-suite/rec-pin/session.jsonl b/packages/support/acp-snapshot/tests/fixtures/record-suite/rec-pin/session.jsonl index 109a192083..d496dbdb1d 100644 --- a/packages/support/acp-snapshot/tests/fixtures/record-suite/rec-pin/session.jsonl +++ b/packages/support/acp-snapshot/tests/fixtures/record-suite/rec-pin/session.jsonl @@ -1,2 +1,2 @@ {"type":"session","id":"ccdc749f-56f3-4267-9750-598b5c60b7b2","createdAt":600,"cwd":"/var/folders/2g/b32ct0qn1d728l_v6tdkjytr0000gn/T/acp-snap-cwd-nOQ4Gy"} -{"type":"request/header","seq":0,"time":4,"data":{"header":{"config":{"model":"fake"},"system":"SYS PROMPT","tools":[{"name":"t1","description":"D1","parameters":{"type":"object"}}]},"reason":"initial"}} +{"type":"request/header","seq":0,"time":4,"data":{"header":{"config":{"model":"fake"},"system":"{{system}}","tools":[{"name":"t1","description":"D1","parameters":{"type":"object"}}]},"reason":"initial"}} diff --git a/packages/support/acp-snapshot/tests/fixtures/record-suite/rec-pin/system-prompt.golden.md b/packages/support/acp-snapshot/tests/fixtures/record-suite/rec-pin/system-prompt.golden.md new file mode 100644 index 0000000000..63940ec7c6 --- /dev/null +++ b/packages/support/acp-snapshot/tests/fixtures/record-suite/rec-pin/system-prompt.golden.md @@ -0,0 +1 @@ +SYS PROMPT diff --git a/packages/support/acp-snapshot/tests/fixtures/suite/pin-turn/session.jsonl b/packages/support/acp-snapshot/tests/fixtures/suite/pin-turn/session.jsonl index 87bf09c839..8f69a32a6f 100644 --- a/packages/support/acp-snapshot/tests/fixtures/suite/pin-turn/session.jsonl +++ b/packages/support/acp-snapshot/tests/fixtures/suite/pin-turn/session.jsonl @@ -1,3 +1,3 @@ {"type":"session","id":"12121212-3434-4545-8686-787878787878","createdAt":7,"cwd":"/rec/pin-cwd"} -{"type":"request/header","seq":0,"time":7,"data":{"header":{"config":{"model":"fake"},"system":"SYS PROMPT","tools":[{"name":"t1","description":"D1","parameters":{"type":"object"}}]},"reason":"initial"}} +{"type":"request/header","seq":0,"time":7,"data":{"header":{"config":{"model":"fake"},"system":"{{system}}","tools":[{"name":"t1","description":"D1","parameters":{"type":"object"}}]},"reason":"initial"}} {"type":"turn/start","seq":1,"time":7,"data":{"turn":1}} diff --git a/packages/support/acp-snapshot/tests/fixtures/suite/pin-turn/system-prompt.golden.md b/packages/support/acp-snapshot/tests/fixtures/suite/pin-turn/system-prompt.golden.md new file mode 100644 index 0000000000..63940ec7c6 --- /dev/null +++ b/packages/support/acp-snapshot/tests/fixtures/suite/pin-turn/system-prompt.golden.md @@ -0,0 +1 @@ +SYS PROMPT diff --git a/packages/support/acp-snapshot/tests/normalize.spec.ts b/packages/support/acp-snapshot/tests/normalize.spec.ts index daa9f8342d..bdde120a76 100644 --- a/packages/support/acp-snapshot/tests/normalize.spec.ts +++ b/packages/support/acp-snapshot/tests/normalize.spec.ts @@ -1,5 +1,11 @@ import { describe, expect, it } from 'vitest' -import { type NormalizeContext, normalizeSessionLog, normalizeStdout, scrubRequestHeaders } from '../src/normalize.ts' +import { + type NormalizeContext, + normalizeSessionLog, + normalizeStdout, + scrubRequestHeaders, + scrubSystemPrompts, +} from '../src/normalize.ts' /** * Unit tests for the pure snapshot normalizers. Live as a *.spec.ts (runs in @@ -260,3 +266,43 @@ describe('scrubRequestHeaders', () => { expect(scrubRequestHeaders(once)).toBe(once) }) }) + +describe('scrubSystemPrompts', () => { + it('scrubs only system prompt payloads while keeping tools and prefixes verbatim', () => { + const header = JSON.stringify({ + type: 'request/header', seq: 1, time: 2, + data: { + header: { + system: 'full prompt', + tools: [{ name: 'read', description: 'full schema' }], + messagePrefix: [{ role: 'user', content: [{ type: 'text', text: 'full prefix' }] }], + }, + reason: 'initial', + }, + }) + const delta = JSON.stringify({ + type: 'request/header-delta', seq: 2, time: 3, + data: { + system: { keepStart: 1, keepEnd: 2, insert: ['new prompt line'] }, + tools: { changed: [{ name: 'read', description: 'changed schema' }] }, + messagePrefix: [{ role: 'user', content: [{ type: 'text', text: 'changed prefix' }] }], + }, + }) + const toolsOnly = JSON.stringify({ + type: 'request/header', seq: 3, time: 4, + data: { header: { tools: [{ name: 'read', description: 'schema only' }] }, reason: 'resume' }, + }) + + const out = scrubSystemPrompts(`${header}\n${delta}\n${toolsOnly}\n`) + expect(out).toContain('"system":"{{system}}"') + expect(out).toContain('"insert":["{{system}}"]') + expect(out).not.toContain('full prompt') + expect(out).not.toContain('new prompt line') + expect(out).toContain('full schema') + expect(out).toContain('full prefix') + expect(out).toContain('changed schema') + expect(out).toContain('changed prefix') + expect(out.split('\n')[2]).toBe(toolsOnly) + expect(scrubSystemPrompts(out)).toBe(out) + }) +}) diff --git a/packages/support/acp-snapshot/tests/suite.spec.ts b/packages/support/acp-snapshot/tests/suite.spec.ts index ae01190c01..0eb08d05f5 100644 --- a/packages/support/acp-snapshot/tests/suite.spec.ts +++ b/packages/support/acp-snapshot/tests/suite.spec.ts @@ -8,8 +8,10 @@ import { defineAcpSnapshotSuite, type HarvestedLog, type Scenario } from '../src import { childFixturePaths, fixtureContext, + formatSystemPromptSnapshot, headerDeltaCount, normalizedHeaders, + normalizedSystemPrompts, refreshFixtureReplacements, stabilizeRefreshLog, } from '../src/suite.ts' @@ -78,6 +80,7 @@ afterAll(async () => { function staleRefreshFixtures(dir: string): void { writeFileSync(join(dir, 'plain-turn', 'stdout.golden.jsonl'), 'stale stdout\n') + writeFileSync(join(dir, 'pin-turn', 'system-prompt.golden.md'), 'STALE PROMPT\n') const plainBehaviorFile = join(dir, 'plain-turn', 'behavior.json') const plainBehavior = JSON.parse(readFileSync(plainBehaviorFile, 'utf8')) as Record @@ -124,6 +127,8 @@ describe('defineAcpSnapshotSuite: refresh write-back', () => { const authored = readFileSync(join(refreshDir, 'authored-error', 'session.jsonl'), 'utf8') expect(authored).toContain('"error":"model exploded"') expect(authored).not.toContain('"error":"stale"') + + expect(readFileSync(join(refreshDir, 'pin-turn', 'system-prompt.golden.md'), 'utf8')).toBe('SYS PROMPT\n') }) }) @@ -219,6 +224,28 @@ describe('normalizedHeaders', () => { }) }) +describe('normalizedSystemPrompts', () => { + it('extracts normalized string prompts and omits absent or non-string fields', () => { + const log = [ + '{"type":"session","id":"a","createdAt":5,"cwd":"/w"}', + '{"type":"request/header","seq":0,"time":9,"data":{"header":{"system":"work in /w"}}}', + '{"type":"request/header","seq":1,"time":9,"data":{"header":{}}}', + '{"type":"request/header","seq":2,"time":9,"data":{"header":{"system":null}}}', + '{"type":"request/header","seq":3,"time":9,"data":{"header":null}}', + '{"type":"request/header","seq":4,"time":9,"data":{"header":"invalid"}}', + '', + ].join('\n') + expect(normalizedSystemPrompts(log, { sessionIds: [], cwd: '/w' })).toEqual(['work in {{cwd}}']) + }) +}) + +describe('formatSystemPromptSnapshot', () => { + it('adds a missing terminal newline without changing an existing one', () => { + expect(formatSystemPromptSnapshot('prompt')).toBe('prompt\n') + expect(formatSystemPromptSnapshot('prompt\n')).toBe('prompt\n') + }) +}) + describe('headerDeltaCount', () => { it('counts request/header-delta events, ignoring blanks and other lines', () => { const delta = JSON.stringify({ type: 'request/header-delta', seq: 2, time: 9, data: {} }) From 169f86966a2cb2aec97ed2613cb8f766b6caed4f Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 22:33:33 +0800 Subject: [PATCH 189/232] fix(review): lint prompt Markdown paragraphs --- .../acp-agent/both-mode.cordis.snapshot.yml | 6 ++--- examples/acp-agent/both-mode.cordis.yml | 6 ++--- .../acp-agent/code-mode.cordis.snapshot.yml | 6 ++--- examples/acp-agent/code-mode.cordis.yml | 6 ++--- examples/acp-agent/cordis.yml | 6 ++--- .../both-mode-turn/system-prompt.golden.md | 6 ++--- .../code-mode-turn/system-prompt.golden.md | 6 ++--- .../text-turn/system-prompt.golden.md | 6 ++--- scripts/verify-md-wrap.ts | 22 ++++++++++++++----- 9 files changed, 33 insertions(+), 37 deletions(-) diff --git a/examples/acp-agent/both-mode.cordis.snapshot.yml b/examples/acp-agent/both-mode.cordis.snapshot.yml index 67044b8066..8ee54b3078 100644 --- a/examples/acp-agent/both-mode.cordis.snapshot.yml +++ b/examples/acp-agent/both-mode.cordis.snapshot.yml @@ -20,11 +20,9 @@ tools: mode: both persona: | - You are a coding assistant powered by the {{model}} model. Your working - directory is {{cwd}}. + You are a coding assistant powered by the {{model}} model. Your working directory is {{cwd}}. - Verify your work by running the code or tests. Keep answers brief and - factual. + Verify your work by running the code or tests. Keep answers brief and factual. - insert: - id: code-runtime name: '@deepseek-ai/dsh-code-runtime-worker' diff --git a/examples/acp-agent/both-mode.cordis.yml b/examples/acp-agent/both-mode.cordis.yml index b449a568ec..3dff66d60a 100644 --- a/examples/acp-agent/both-mode.cordis.yml +++ b/examples/acp-agent/both-mode.cordis.yml @@ -19,11 +19,9 @@ tools: mode: both persona: | - You are a coding assistant powered by the {{model}} model. Your working - directory is {{cwd}}. + You are a coding assistant powered by the {{model}} model. Your working directory is {{cwd}}. - Verify your work by running the code or tests. Keep answers brief and - factual. + Verify your work by running the code or tests. Keep answers brief and factual. - insert: - id: code-runtime name: '@deepseek-ai/dsh-code-runtime-worker' diff --git a/examples/acp-agent/code-mode.cordis.snapshot.yml b/examples/acp-agent/code-mode.cordis.snapshot.yml index bcaa225eba..d525afc5d6 100644 --- a/examples/acp-agent/code-mode.cordis.snapshot.yml +++ b/examples/acp-agent/code-mode.cordis.snapshot.yml @@ -20,11 +20,9 @@ tools: mode: code persona: | - You are a coding assistant powered by the {{model}} model. Your working - directory is {{cwd}}. + You are a coding assistant powered by the {{model}} model. Your working directory is {{cwd}}. - Verify your work by running the code or tests. Keep answers brief and - factual. + Verify your work by running the code or tests. Keep answers brief and factual. - insert: - id: code-runtime name: '@deepseek-ai/dsh-code-runtime-worker' diff --git a/examples/acp-agent/code-mode.cordis.yml b/examples/acp-agent/code-mode.cordis.yml index d46e490494..323c35b5b4 100644 --- a/examples/acp-agent/code-mode.cordis.yml +++ b/examples/acp-agent/code-mode.cordis.yml @@ -20,11 +20,9 @@ tools: mode: code persona: | - You are a coding assistant powered by the {{model}} model. Your working - directory is {{cwd}}. + You are a coding assistant powered by the {{model}} model. Your working directory is {{cwd}}. - Verify your work by running the code or tests. Keep answers brief and - factual. + Verify your work by running the code or tests. Keep answers brief and factual. - insert: - id: code-runtime name: '@deepseek-ai/dsh-code-runtime-worker' diff --git a/examples/acp-agent/cordis.yml b/examples/acp-agent/cordis.yml index 0ff736dd59..dc03ea6b03 100644 --- a/examples/acp-agent/cordis.yml +++ b/examples/acp-agent/cordis.yml @@ -44,11 +44,9 @@ # loop resolves per session (every ACP session carries the client's cwd, # so the persona can state the workspace). persona: | - You are a coding assistant powered by the {{model}} model. Your working - directory is {{cwd}}. + You are a coding assistant powered by the {{model}} model. Your working directory is {{cwd}}. - Verify your work by running the code or tests. Keep answers brief and - factual. + Verify your work by running the code or tests. Keep answers brief and factual. # The subagent seam + both in-process backends + two model-facing tools, as leaf # entries after the app (which provides ctx.agents/ctx.tools). spawn (a fresh diff --git a/examples/acp-agent/tests/snapshots/both-mode-turn/system-prompt.golden.md b/examples/acp-agent/tests/snapshots/both-mode-turn/system-prompt.golden.md index 688557b132..d817cf1a80 100644 --- a/examples/acp-agent/tests/snapshots/both-mode-turn/system-prompt.golden.md +++ b/examples/acp-agent/tests/snapshots/both-mode-turn/system-prompt.golden.md @@ -1,10 +1,8 @@ You are an AI agent powered by the DeepSeek Harness SDK. -You are a coding assistant powered by the deepseek-v4-flash model. Your working -directory is {{cwd}}. +You are a coding assistant powered by the deepseek-v4-flash model. Your working directory is {{cwd}}. -Verify your work by running the code or tests. Keep answers brief and -factual. +Verify your work by running the code or tests. Keep answers brief and factual. Use the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files. diff --git a/examples/acp-agent/tests/snapshots/code-mode-turn/system-prompt.golden.md b/examples/acp-agent/tests/snapshots/code-mode-turn/system-prompt.golden.md index 688557b132..d817cf1a80 100644 --- a/examples/acp-agent/tests/snapshots/code-mode-turn/system-prompt.golden.md +++ b/examples/acp-agent/tests/snapshots/code-mode-turn/system-prompt.golden.md @@ -1,10 +1,8 @@ You are an AI agent powered by the DeepSeek Harness SDK. -You are a coding assistant powered by the deepseek-v4-flash model. Your working -directory is {{cwd}}. +You are a coding assistant powered by the deepseek-v4-flash model. Your working directory is {{cwd}}. -Verify your work by running the code or tests. Keep answers brief and -factual. +Verify your work by running the code or tests. Keep answers brief and factual. Use the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files. diff --git a/examples/acp-agent/tests/snapshots/text-turn/system-prompt.golden.md b/examples/acp-agent/tests/snapshots/text-turn/system-prompt.golden.md index edaa7d5cc9..18f0cbcd07 100644 --- a/examples/acp-agent/tests/snapshots/text-turn/system-prompt.golden.md +++ b/examples/acp-agent/tests/snapshots/text-turn/system-prompt.golden.md @@ -1,10 +1,8 @@ You are an AI agent powered by the DeepSeek Harness SDK. -You are a coding assistant powered by the deepseek-v4-flash model. Your working -directory is {{cwd}}. +You are a coding assistant powered by the deepseek-v4-flash model. Your working directory is {{cwd}}. -Verify your work by running the code or tests. Keep answers brief and -factual. +Verify your work by running the code or tests. Keep answers brief and factual. Use the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files. diff --git a/scripts/verify-md-wrap.ts b/scripts/verify-md-wrap.ts index 2d8845e030..3143ee5617 100644 --- a/scripts/verify-md-wrap.ts +++ b/scripts/verify-md-wrap.ts @@ -18,9 +18,11 @@ * A wrapped paragraph inside a list item or blockquote is still a `paragraph` * node, so those are caught too. Scope mirrors doc-typecheck plus the two * AGENTS.md files that doc-sync does NOT otherwise cover (the convention itself - * lives there): README.md, docs/** /*.md, packages/* /*.md, AGENTS.md, - * packages/AGENTS.md. The root and packages/ CLAUDE.md are symlinks to the - * AGENTS.md files, so they are deduped by real path. + * lives there), plus generated system-prompt Markdown goldens: README.md, + * docs/** /*.md, packages/* /*.md, examples/** /system-prompt.golden.md, + * packages/** /system-prompt.golden.md, AGENTS.md, packages/AGENTS.md. The root + * and packages/ CLAUDE.md are symlinks to the AGENTS.md files, so they are + * deduped by real path. * * Run: `tsx scripts/verify-md-wrap.ts`. */ @@ -34,8 +36,18 @@ import type { Nodes } from 'mdast' const root = resolve(import.meta.dirname, '..') -/** Files to check: doc-typecheck's scope plus the AGENTS.md pair. */ -const PATTERNS = ['README.md', 'README.zh.md', 'docs/**/*.md', 'packages/*/*.md', 'packages/*/*/*.md', 'AGENTS.md', 'packages/AGENTS.md'] +/** Files to check: doc-typecheck's scope, prompt goldens, and the AGENTS.md pair. */ +const PATTERNS = [ + 'README.md', + 'README.zh.md', + 'docs/**/*.md', + 'packages/*/*.md', + 'packages/*/*/*.md', + 'examples/**/system-prompt.golden.md', + 'packages/**/system-prompt.golden.md', + 'AGENTS.md', + 'packages/AGENTS.md', +] /** A located hard-wrap: a prose paragraph spanning more than one source line. */ interface Violation { From 3263dab822a3d7f6dfd4d34b397b0a92d3e55ba7 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 22:55:26 +0800 Subject: [PATCH 190/232] fix(core): enforce agent-scoped ownership boundaries --- examples/coding-agent/tests/resume.e2e.ts | 4 +- .../bash/tool-bash/tests/integration.spec.ts | 23 +- packages/bash/tool-bash/tests/tools.spec.ts | 10 +- .../cordis/tool-cordis/src/api-catalog.ts | 60 +- packages/cordis/tool-cordis/src/guard.ts | 4 +- packages/core/agent-loop/package.json | 1 - packages/core/agent-loop/src/agent.ts | 77 ++- packages/core/agent-loop/src/index.ts | 379 +++++++---- packages/core/agent-loop/src/loop.ts | 89 ++- packages/core/agent-loop/tests/agent.spec.ts | 20 +- packages/core/agent-loop/tests/cancel.spec.ts | 4 +- .../tests/config-session-id.spec.ts | 2 +- packages/core/agent-loop/tests/inbox.spec.ts | 2 +- packages/core/agent-loop/tests/loop.spec.ts | 40 +- .../tests/request-reconstruction.spec.ts | 2 +- packages/core/agent-loop/tests/resume.spec.ts | 268 +++++++- .../agent-loop/tests/review-fixes.spec.ts | 7 +- .../agent-loop/tests/scope-lifecycle.spec.ts | 229 ++++++- .../core/agent-loop/tests/turn-stop.spec.ts | 199 ++++++ packages/core/agent/src/dispatch.ts | 28 +- packages/core/agent/src/index.ts | 182 ++++-- packages/core/agent/src/types.ts | 52 +- packages/core/agent/tests/agent.spec.ts | 40 +- packages/core/scope/src/index.ts | 75 ++- packages/core/scope/tests/scope.spec.ts | 78 ++- packages/core/session/src/index.ts | 26 +- packages/core/session/tests/scoped.spec.ts | 25 +- packages/core/session/tests/session.spec.ts | 1 + packages/core/system-prompt/src/index.ts | 191 +++++- .../core/system-prompt/tests/scoped.spec.ts | 42 ++ .../system-prompt/tests/system-prompt.spec.ts | 97 +++ packages/core/tools/src/code-mode.ts | 17 +- packages/core/tools/src/index.ts | 588 ++++++++++++++---- packages/core/tools/tests/code-mode.spec.ts | 84 ++- packages/core/tools/tests/scoped.spec.ts | 301 ++++++++- packages/core/tools/tests/tools.spec.ts | 284 ++++++++- packages/fs/tool-fs/tests/fs-tools.e2e.ts | 2 +- packages/fs/tool-fs/tests/tools.spec.ts | 10 +- .../hooks/hooks-claude/tests/coverage.spec.ts | 6 +- .../hooks/hooks-codex/tests/coverage.spec.ts | 2 +- packages/subagent/subagent-fork/src/index.ts | 3 +- .../subagent-fork/tests/subagent-fork.spec.ts | 4 +- .../subagent/subagent-inprocess/src/index.ts | 227 ++++--- .../subagent-inprocess/src/structured.ts | 235 +++---- .../tests/structured.spec.ts | 299 +++++++-- .../tests/subagent-inprocess.spec.ts | 183 +++++- packages/subagent/subagent-spawn/src/index.ts | 4 +- .../tests/subagent-spawn.spec.ts | 149 ++++- packages/subagent/subagent/src/index.ts | 33 +- packages/subagent/subagent/src/types.ts | 8 +- .../subagent/subagent/tests/service.spec.ts | 40 ++ packages/support/invariants/src/index.ts | 14 +- .../invariants/tests/invariants.spec.ts | 6 +- .../tests/timeout-policy.spec.ts | 4 +- packages/ui/acp/src/index.ts | 16 +- packages/ui/acp/tests/dispose.spec.ts | 8 +- packages/ui/acp/tests/edges.spec.ts | 2 +- .../tests/workflow-workerthread.e2e.ts | 2 +- scripts/gen-cordis-catalog.ts | 2 + scripts/gen-doc-graphs.ts | 43 +- scripts/gen-tool-catalog.ts | 2 +- scripts/type-equiv.manifest.json | 4 + 62 files changed, 3982 insertions(+), 857 deletions(-) create mode 100644 packages/core/agent-loop/tests/turn-stop.spec.ts diff --git a/examples/coding-agent/tests/resume.e2e.ts b/examples/coding-agent/tests/resume.e2e.ts index fc216a9848..70382b4beb 100644 --- a/examples/coding-agent/tests/resume.e2e.ts +++ b/examples/coding-agent/tests/resume.e2e.ts @@ -39,11 +39,11 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('resume: continue a persisted ses // dispose the whole context (simulating process exit) so only the JSONL // log on disk survives. ctx = await codingHarness(process.cwd(), { persona: SYSTEM_PROMPT, persistenceRoot: root }) - const first = ctx.agents.create({ + const first = (await ctx.agents.create({ agentId: AgentId('resume-1'), sessionId: SESSION_ID, agentOptions: { model: 'deepseek-v4-flash' }, - }).agent as ReactLoopAgent + })).agent as ReactLoopAgent first.send([{ type: 'text', text: `Remember this code for later: ${SECRET}. Just acknowledge it.` }]) await waitForIdle(ctx, first) await ctx.fiber.dispose() diff --git a/packages/bash/tool-bash/tests/integration.spec.ts b/packages/bash/tool-bash/tests/integration.spec.ts index b3d6bb3f77..a22e86bd99 100644 --- a/packages/bash/tool-bash/tests/integration.spec.ts +++ b/packages/bash/tool-bash/tests/integration.spec.ts @@ -119,37 +119,30 @@ describe('bash tool through the agent loop', () => { it('background: start → poll → completion notice lands as context/message', async () => { const adapter = new MockAdapter([ toolCallResponse('call-1', 'bash', { command: 'echo bg-ok', description: 'test command', run_in_background: true }), - toolCallResponse('call-2', 'bash_output', {}, undefined), + // Each harness owns a fresh BashLocal service, whose first task id is + // deterministically bash-1. Keep the scripted call faithful to what the + // model sent; tool arguments are immutable once execution policy begins. + toolCallResponse('call-2', 'bash_output', { task_id: 'bash-1' }, undefined), textResponse('Background task finished.'), ]) - // The second tool call needs the REAL task id from the first result; - // a tools/pre-execute listener rewrites the scripted arguments. (This uses - // the low-level capability to mutate `exec` before dispatch — the - // unadvertised mechanism behind a future first-class input-rewrite decision; - // here it is a test shim to thread the generated id, not a product feature.) let taskId = '' const ctx = await harness(adapter) const agent = ctx.agentLoop.create(AgentId('it-bg'), { model: 'mock' }) - // Intercept the first tool result to capture the generated task id, then - // rewrite the second scripted call's arguments to use it. + // Capture the generated id so the deterministic fixture is checked against + // the real executor instead of silently assuming it. ctx.on('session/event', (_session, event) => { if (event.type === 'tool/result' && taskId === '') { const match = /task (bash-\d+)/.exec(resultText(event)) if (match) taskId = match[1]! } }) - ctx.on('tools/pre-execute', async (exec, next) => { - if (exec.name === 'bash_output') { - exec.arguments = { task_id: taskId } - } - return next() - }) - agent.send([{ type: 'text', text: 'run echo bg-ok in the background' }]) await waitForIdle(ctx, agent) + expect(taskId).toBe('bash-1') + // Wait for the background task itself (completion may race turn end). const task = ctx.bash.get(BashTaskId(taskId)) if (!task) throw new Error(`task ${taskId} not registered`) diff --git a/packages/bash/tool-bash/tests/tools.spec.ts b/packages/bash/tool-bash/tests/tools.spec.ts index 6299aea7d3..fb2c3bf7a8 100644 --- a/packages/bash/tool-bash/tests/tools.spec.ts +++ b/packages/bash/tool-bash/tests/tools.spec.ts @@ -242,7 +242,6 @@ describe('bash tool', () => { [{ command: ' ', description: 'd' }, /invalid command/], [{ command: 'x', description: ' ' }, /invalid description/], [{ command: 'x', description: 'd', timeoutMs: -1 }, /invalid timeoutMs/], - [{ command: 'x', description: 'd', timeoutMs: Number.NaN }, /invalid timeoutMs/], ])('rejects value-invalid args %j', async (args, pattern) => { const ctx = await setup() const result = await call(ctx, 'bash', args) @@ -250,6 +249,15 @@ describe('bash tool', () => { expect(text(result)).toMatch(pattern) }) + it('rejects a non-JSON numeric argument before tool-specific validation', async () => { + const ctx = await setup() + const result = await call(ctx, 'bash', { + command: 'x', description: 'd', timeoutMs: Number.NaN, + }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('tool execution arguments must be losslessly JSON-serializable') + }) + it('registers all three schemas in the system prompt assembly', async () => { const ctx = await setup() const names = ctx.tools.schemas().map(schema => schema.name) diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts index 31ebdabc5d..ecb30c7a80 100644 --- a/packages/cordis/tool-cordis/src/api-catalog.ts +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -57,7 +57,7 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ summary: 'The agent-loop plugin (`ctx.agentLoop`): creates ReactLoopAgents, runs their loops, and registers them in `ctx.agents`.', methods: [ 'create(id: AgentId, options: AgentOptions = {}): ReactLoopAgent', - 'createAgent(options: CreateAgentOptions): AgentHandle', + 'async createAgent(options: CreateAgentOptions): Promise', 'async resume(options: ResumeAgentOptions): Promise', ], }, @@ -66,9 +66,11 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ summary: 'Agent registry (`ctx.agents`): tracks live agents so UI, hook, and orchestrator plugins can find them without depending on the concrete loop package.', methods: [ 'setFactory(factory: AgentFactory): () => Promise | void', - 'create(options: CreateAgentOptions): AgentHandle', + 'async create(options: CreateAgentOptions): Promise', 'async resume(options: ResumeAgentOptions): Promise', 'register(agent: Agent): () => Promise | void', + 'enter(agent: Agent): () => void', + 'announce(agent: Agent): void', 'get(id: AgentId): Agent | undefined', 'list(): Agent[]', ], @@ -161,25 +163,27 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ }, { key: 'systemPrompt', - summary: 'Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, and named prompt variables; the agent loop calls `assemble(context)` once per step.', + summary: 'Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, named prompt variables, and authoritative contribution protections; the agent loop calls `assemble(context)` once per step.', methods: [ 'section(section: PromptSection): () => Promise | void', 'tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void', 'variable(name: string, provider: (context: AssembleContext) => string | undefined): () => Promise | void', + 'protect(protection: PromptProtection): () => Promise | void', 'async assemble(context: AssembleContext = {}): Promise', ], }, { key: 'tools', - summary: 'Tool registry (`ctx.tools`): tool plugins register definitions; the agent loop executes calls through the `tools/pre-execute` → `tools/execute` → `tools/post-execute` pipeline.', + summary: 'Tool registry (`ctx.tools`): tool plugins register definitions; the agent loop executes calls through the `tools/pre-execute` → guards → `tools/execute` → `tools/post-execute` → `tools/result` pipeline.', methods: [ 'register(definition: ToolDefinition): () => Promise | void', 'restrict(filter: ToolRestriction): () => Promise | void', + 'guard(guard: ToolGuard): () => Promise | void', 'visible(scope?: ScopeKey): ToolDefinition[]', 'get(name: string, scope?: ScopeKey): ToolDefinition | undefined', 'schemas(scope?: ScopeKey): ToolSchema[]', 'knownNames(scope?: ScopeKey): string[]', - 'async execute(exec: ToolExecution): Promise', + 'async execute(exec: ToolExecutionInput): Promise', ], }, { @@ -215,13 +219,13 @@ export const EVENT_API: readonly EventApiEntry[] = [ name: 'agent/created', mode: 'emit', signature: '\'agent/created\'(this: Scoped, agent: Agent): void', - summary: 'An agent was registered in the AgentRegistry and is ready to receive messages.', + summary: 'An agent\'s fully composed scoped world was published in the AgentRegistry.', }, { name: 'agent/disposed', mode: 'emit', signature: '\'agent/disposed\'(this: Scoped, agent: Agent): void', - summary: 'An agent was disposed and removed from the registry; its fiber and any in-flight turn have been torn down.', + summary: 'An agent was removed from the registry after its driver and any in-flight turn reached quiescence.', }, { name: 'agent/error', @@ -283,6 +287,12 @@ export const EVENT_API: readonly EventApiEntry[] = [ signature: '\'agent/turn-continuation\'(this: Scoped, agent: Agent, turn: number, defaultDecision: ContinuationDecision, next: () => Promise): Promise', summary: 'Waterfall: override the turn-continuation decision via a typed ContinuationDecision.', }, + { + name: 'agent/turn-stop', + mode: 'serial', + signature: '\'agent/turn-stop\'(this: Scoped, agent: Agent, turn: number): Promise | ContinuationStop | undefined', + summary: 'Serial terminal-stop checkpoint after the ordinary `agent/turn-continuation` waterfall, any `continue.reason`, and the pending-steering continuation override have been folded.', + }, { name: 'fs/edit-intent', mode: 'waterfall', @@ -328,7 +338,7 @@ export const EVENT_API: readonly EventApiEntry[] = [ { name: 'subagent/end', mode: 'emit', - signature: '\'subagent/end\'(info: SubagentRunEndInfo): void', + signature: '\'subagent/end\'(this: Scoped, info: SubagentRunEndInfo): void', summary: 'A subagent run settled — emitted when SubagentRun.result resolves (any stop reason).', }, { @@ -346,7 +356,7 @@ export const EVENT_API: readonly EventApiEntry[] = [ { name: 'subagent/start', mode: 'emit', - signature: '\'subagent/start\'(info: SubagentRunInfo): void', + signature: '\'subagent/start\'(this: Scoped, info: SubagentRunInfo): void', summary: 'A subagent run started — emitted after the provider is resolved and its capabilities validated, as the child run begins.', }, { @@ -359,7 +369,7 @@ export const EVENT_API: readonly EventApiEntry[] = [ name: 'system-prompt/change', mode: 'emit', signature: '\'system-prompt/change\'(): void', - summary: 'A section, tool provider, or variable provider was registered or unregistered (the assembly inputs changed — possibly for one scope only).', + summary: 'A section, tool provider, variable provider, or protection was registered or unregistered (the assembly inputs changed — possibly for one scope only).', }, { name: 'tools/change', @@ -385,6 +395,12 @@ export const EVENT_API: readonly EventApiEntry[] = [ signature: '\'tools/pre-execute\'(this: Scoped, exec: ToolExecution, next: () => Promise): Promise', summary: 'Waterfall BEFORE a tool runs — the gate where sandbox, permission, and hook plugins allow or deny a call (Claude Code\'s `PreToolUse`).', }, + { + name: 'tools/result', + mode: 'parallel', + signature: '\'tools/result\'(this: Scoped, exec: Readonly, result: Readonly): Promise | void', + summary: 'Awaited notification of the authoritative FINAL tool outcome, after the complete pre/execute/post pipeline, final lossless-JSON validation, and outer error normalization.', + }, { name: 'workflow/agent-end', mode: 'emit', @@ -431,7 +447,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'AgentFactory', - declaration: 'export interface AgentFactory {\n createAgent(options: CreateAgentOptions): AgentHandle;\n resume(options: ResumeAgentOptions): Promise;\n}', + declaration: 'export interface AgentFactory {\n createAgent(options: CreateAgentOptions): Promise;\n resume(options: ResumeAgentOptions): Promise;\n}', }, { name: 'AgentHandle', @@ -563,7 +579,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'CreateAgentOptions', - declaration: 'export interface CreateAgentOptions {\n agentId: AgentId;\n sessionId: SessionId;\n meta?: {\n cwd?: string;\n parentSession?: SessionId;\n seedLength?: number;\n };\n seed?: SessionEvent[];\n agentOptions?: AgentOptions;\n setup?: (agentCtx: Context) => void;\n}', + declaration: 'export interface CreateAgentOptions {\n agentId: AgentId;\n sessionId: SessionId;\n meta?: {\n cwd?: string;\n parentSession?: SessionId;\n seedLength?: number;\n };\n seed?: SessionEvent[];\n agentOptions?: AgentOptions;\n setup?: (agentCtx: Context) => Promise | void;\n}', }, { name: 'CreateSessionOptions', @@ -665,6 +681,10 @@ export const TYPE_API: readonly TypeApiEntry[] = [ name: 'PromptAssembly', declaration: 'export interface PromptAssembly {\n sections: AssembledSection[];\n tools: ToolSchema[];\n variables: Record;\n}', }, + { + name: 'PromptProtection', + declaration: 'export interface PromptProtection {\n sections?: readonly string[];\n tools?: readonly string[];\n}', + }, { name: 'PromptSection', declaration: 'export interface PromptSection {\n name: string;\n order: number;\n text: string | ((context: AssembleContext) => string);\n}', @@ -675,7 +695,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'ResumeAgentOptions', - declaration: 'export interface ResumeAgentOptions {\n agentId: AgentId;\n resumeSessionId: SessionId;\n agentOptions?: AgentOptions;\n}', + declaration: 'export interface ResumeAgentOptions {\n agentId: AgentId;\n resumeSessionId: SessionId;\n agentOptions?: AgentOptions;\n setup?: (agentCtx: Context) => Promise | void;\n}', }, { name: 'ScopeKey', @@ -807,12 +827,24 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'ToolExecution', - declaration: 'export interface ToolExecution {\n callId: CallId;\n name: string;\n arguments: unknown;\n agent?: Agent;\n signal?: AbortSignal;\n}', + declaration: 'export interface ToolExecution extends ToolExecutionInput {\n readonly token: ToolExecutionToken;\n}', + }, + { + name: 'ToolExecutionInput', + declaration: 'export interface ToolExecutionInput {\n readonly callId: CallId;\n readonly name: string;\n readonly arguments: unknown;\n readonly agent?: Agent;\n readonly parent?: ToolExecutionToken;\n signal?: AbortSignal;\n}', }, { name: 'ToolExecutionResult', declaration: 'export interface ToolExecutionResult {\n callId: CallId;\n content: ContentBlock[];\n isError: boolean;\n error?: ToolErrorInfo;\n additionalContext?: HookContext;\n meta?: unknown;\n}', }, + { + name: 'ToolExecutionToken', + declaration: 'export interface ToolExecutionToken {\n readonly [toolExecutionTokenBrand]: true;\n}', + }, + { + name: 'ToolGuard', + declaration: 'export type ToolGuard = (execution: Readonly) => string | undefined;', + }, { name: 'ToolProviderResult', declaration: 'export interface ToolProviderResult {\n schemas: ToolSchema[];\n knownNames?: readonly string[];\n}', diff --git a/packages/cordis/tool-cordis/src/guard.ts b/packages/cordis/tool-cordis/src/guard.ts index 33d647db2b..10c2255141 100644 --- a/packages/cordis/tool-cordis/src/guard.ts +++ b/packages/cordis/tool-cordis/src/guard.ts @@ -253,8 +253,8 @@ const CTX_VERBS = new Set(['on', 'once', 'provide', 'timeout', 'interval', 'setT * metadata (`schemas`, and `get` returning a schema view, never the live * `ToolDefinition`). Exposing the raw definition would hand mount code the * tool's `execute` function, letting it call another tool directly and bypass - * `ToolRegistry.execute` — the pre/post-execute waterfall (permission gates, - * accounting) and result normalization. So `get` returns the same + * `ToolRegistry.execute` — identity protection, pre-policy, monotonic guards, + * around dispatch, post-policy, final observation, and result normalization. So `get` returns the same * name/description/parameters view as `schemas()`, and nothing invocable. */ function sandboxTools(ctx: Context): Record { diff --git a/packages/core/agent-loop/package.json b/packages/core/agent-loop/package.json index 03acc7e17f..5d180bd08c 100644 --- a/packages/core/agent-loop/package.json +++ b/packages/core/agent-loop/package.json @@ -11,7 +11,6 @@ "types": "./lib/types/index.d.ts", "default": "./lib/index.js" }, - "./src/*": "./src/*", "./package.json": "./package.json" }, "files": [ diff --git a/packages/core/agent-loop/src/agent.ts b/packages/core/agent-loop/src/agent.ts index 5f56cdc8a7..fb00f4ad76 100644 --- a/packages/core/agent-loop/src/agent.ts +++ b/packages/core/agent-loop/src/agent.ts @@ -16,6 +16,51 @@ import type { Session } from '@deepseek-ai/dsh-session' import { Inbox } from './inbox.ts' import { isTurnOpen, lastTurnNumber, runLoop } from './loop.ts' +/** Agents whose rollback-covered publication enabled driving. */ +const driveEnabledAgents = new WeakSet() + +/** Sessions already claimed by a concrete driver construction. */ +const claimedDriverSessions = new WeakSet() + +/** Module-private driver entry: its symbol is absent from the package surface. */ +const startDriver = Symbol('dsh.agent-loop.start-driver') + +/** Factory-owned controls that can operate only on the agent created with them. */ +export interface PreparedReactLoopAgent { + /** The unpublished concrete agent. */ + agent: ReactLoopAgent + /** Open its driving verbs at the rollback-covered publication boundary. */ + enableDrive(): void + /** Start its driver after publication and session-start notification. */ + startDriver(): () => void +} + +/** + * Construct one concrete agent together with unforgeable, instance-bound + * lifecycle controls. The package surface deliberately exposes neither source + * subpaths nor this helper: setup code may identify the concrete class, but it + * cannot enable or start the factory's unpublished instance. + * @param ctx - the agent-loop service context used for driving and events. + * @param id - the concrete agent identity. + * @param options - loop options for the agent. + * @param session - the prepared session the agent will own. + * @returns the agent and closures bound only to that exact instance. + */ +export function prepareReactLoopAgent( + ctx: Context, id: AgentId, options: AgentOptions, session: Session, +): PreparedReactLoopAgent { + if (claimedDriverSessions.has(session)) { + throw new Error(`session "${session.id}" already has a concrete agent driver`) + } + claimedDriverSessions.add(session) + const agent = new ReactLoopAgent(ctx, id, options, session) + return { + agent, + enableDrive: () => { driveEnabledAgents.add(agent) }, + startDriver: () => agent[startDriver](), + } +} + /** * The concrete {@link Agent} implementation owned by the agent-loop plugin. * @@ -24,11 +69,8 @@ import { isTurnOpen, lastTurnNumber, runLoop } from './loop.ts' * the agent/* event taxonomy — plugins never need this class. */ export class ReactLoopAgent implements Agent { - /** - * The queued + steering FIFOs behind {@link send}/{@link steer}. Public so - * the driver loop can drain it; {@link cancel} clears it wholesale. - */ - readonly inbox = new Inbox() + /** Queued + steering FIFOs; native-private so setup cannot bypass driving verbs. */ + readonly #inbox = new Inbox() /** * The agent's scope context ({@link Agent.ctx}), wired by the factory right @@ -119,7 +161,7 @@ export class ReactLoopAgent implements Agent { /** * Resolve and clear all pending {@link whenIdle} waiters. Called on a * running→idle transition (from {@link setStatus}) and on disposal (from the - * {@link start} disposer, which chains `done` for true loop-exit quiescence). + * internal driver disposer, which chains `done` for true loop-exit quiescence). */ private settleIdleWaiters(): void { const waiters = this.idleWaiters @@ -131,22 +173,31 @@ export class ReactLoopAgent implements Agent { return options?.source ?? { kind: 'user' } } + /** Reject every driving verb while creation setup still owns the agent. */ + private assertDriveEnabled(action: string): void { + if (driveEnabledAgents.has(this)) return + throw new Error(`agent "${this.id}" cannot ${action} before creation setup completes`) + } + send(content: ContentBlock[], options?: SendOptions): void { + this.assertDriveEnabled('send') if (this._status === 'disposed') throw new Error(`agent "${this.id}" is disposed`) const source = this.resolveSource(options) - this.inbox.enqueue({ content, source }) + this.#inbox.enqueue({ content, source }) this.loopCtx.emit(this.carrier, 'agent/queued', this, content, { source, steering: false }) } steer(content: ContentBlock[], options?: SendOptions): void { + this.assertDriveEnabled('steer') if (this._status === 'disposed') throw new Error(`agent "${this.id}" is disposed`) if (this._status !== 'running') { this.send(content, options); return } const source = this.resolveSource(options) - this.inbox.steer({ content, source }) + this.#inbox.steer({ content, source }) this.loopCtx.emit(this.carrier, 'agent/queued', this, content, { source, steering: true }) } inject(content: ContentBlock[], options?: SendOptions): void { + this.assertDriveEnabled('inject') if (this._status === 'disposed') throw new Error(`agent "${this.id}" is disposed`) const source = this.resolveSource(options) if (isTurnOpen(this.session)) { @@ -220,6 +271,7 @@ export class ReactLoopAgent implements Agent { } cancel(reason?: string): void { + this.assertDriveEnabled('cancel') // Arm-gate: only mark a cancellation when there is actually work to cancel — // a running turn, an in-flight step, or queued/steering work. An idle cancel // with nothing pending is a true no-op; arming the marker then would wrongly @@ -229,7 +281,7 @@ export class ReactLoopAgent implements Agent { // the pre-step window (a send() queued but the loop not yet flipped to // running) has status `idle` with `hasQueued` true, and the marker exists // precisely to cover it. - if (this._status === 'running' || this.currentAbort !== undefined || this.inbox.hasQueued || this.inbox.hasSteering) { + if (this._status === 'running' || this.currentAbort !== undefined || this.#inbox.hasQueued || this.#inbox.hasSteering) { this.cancelRequested = true // Capture the resolved reason for the marker-only windows (pre-step / // continuation). The mid-step path reads it from abort.signal.reason @@ -240,7 +292,7 @@ export class ReactLoopAgent implements Agent { // cancelled turn's steering is not re-enqueued). Cleared directly even when // the loop is parked in waitForQueued — there is no turn to stop and nothing // left for the parked loop to run, so no wake is needed. - this.inbox.clear() + this.#inbox.clear() // Interrupt an in-flight step immediately (the running turn observes the // abort and ends `aborted`). The marker covers the windows where no step is // running (pre-step, continuation). @@ -263,7 +315,7 @@ export class ReactLoopAgent implements Agent { */ whenIdle(): Promise { if (this._status === 'disposed') return this.done - if (this._status !== 'running' && !this.inbox.hasQueued) return Promise.resolve() + if (this._status !== 'running' && !this.#inbox.hasQueued) return Promise.resolve() // Register an internal waiter (resolved by settleIdleWaiters on the next // running→idle/disposed transition), NOT an effect-scoped `ctx.on` listener: // a concurrent fiber disposal runs this agent's listener disposers, which @@ -287,8 +339,9 @@ export class ReactLoopAgent implements Agent { * @returns the disposer — idempotent and infallible (it runs inside the * fiber's LIFO disposal chain, where a throw would skip later disposers). */ - start(): () => void { + [startDriver](): () => void { this.done = runLoop(this.loopCtx, this, { + inbox: this.#inbox, setStatus: (status) => { this.setStatus(status) }, setAbort: controller => void (this.currentAbort = controller), disposed: this.disposed, diff --git a/packages/core/agent-loop/src/index.ts b/packages/core/agent-loop/src/index.ts index 47b2607881..aa7e68d00e 100644 --- a/packages/core/agent-loop/src/index.ts +++ b/packages/core/agent-loop/src/index.ts @@ -7,10 +7,11 @@ * @module @deepseek-ai/dsh-agent-loop */ -import { Context, Service } from 'cordis' +import { Context, FiberState, Service } from 'cordis' import { randomUUID } from 'node:crypto' import z from 'schemastery' import { createScope } from '@deepseek-ai/dsh-scope' +import type { Scope } from '@deepseek-ai/dsh-scope' import { agentEvents } from '@deepseek-ai/dsh-agent' import type { AgentFactory, AgentHandle, AgentId, AgentOptions, CreateAgentOptions, ResumeAgentOptions, SessionStartSource } from '@deepseek-ai/dsh-agent' import type {} from '@deepseek-ai/dsh-llm' @@ -19,11 +20,9 @@ import type { Session } from '@deepseek-ai/dsh-session' import type {} from '@deepseek-ai/dsh-system-prompt' import type {} from '@deepseek-ai/dsh-tools' import type { SessionPersistence } from '@deepseek-ai/dsh-session-persistence' -import { ReactLoopAgent } from './agent.ts' +import { prepareReactLoopAgent, ReactLoopAgent } from './agent.ts' export { ReactLoopAgent } from './agent.ts' -export { Inbox, type InboxMessage } from './inbox.ts' -export { runLoop } from './loop.ts' declare module 'cordis' { interface Context { @@ -70,6 +69,10 @@ export interface Config { export class AgentLoop extends Service implements AgentFactory { static inject = ['agents', 'sessions', 'llm', 'tools', 'systemPrompt'] + /** IDs held by unpublished async creation transactions. */ + private pendingAgentIds = new Set() + private pendingSessionIds = new Set() + // The schema validates plain strings (cordis.yml config values are untyped at // runtime); the {@link Config} TYPE declares the branded `id`/`resumeSessionId` // because the config format is the boundary where an id enters. The brand is a @@ -165,18 +168,28 @@ export class AgentLoop extends Service implements AgentFactory { * and agent options. * @returns the handle whose dispose tears down exactly this agent. */ - createAgent(options: CreateAgentOptions): AgentHandle { - // Check the agent id BEFORE preparing the session: register() would reject a - // duplicate id only AFTER the session enters the store, leaving an orphaned - // live session (and lazy persistence state) that blocks reuse of that id. - this.assertAgentIdFree(options.agentId) - const session = this.ctx.sessions.prepare(options.sessionId, { - ...options.seed !== undefined ? { seed: options.seed } : {}, - meta: options.meta ?? {}, - }) - // A seeded (forked) create is still a fresh start, NOT a resume — `resume` - // is reserved for reloading a PERSISTED session via resume()/resumeWith(). - return this.startOwned(options.agentId, options.agentOptions ?? {}, session, 'startup', options.setup) + async createAgent(options: CreateAgentOptions): Promise { + // Snapshot every caller-owned field before the first async setup boundary. + // The callback itself is an identity capability; all data fields are + // detached so caller mutation cannot drift a reserved/published identity or + // the options the accepted agent observes. + const agentId = options.agentId + const sessionId = options.sessionId + const setup = options.setup + const agentOptions = structuredClone(options.agentOptions ?? {}) + const seed = options.seed === undefined ? undefined : structuredClone(options.seed) + const meta = structuredClone(options.meta ?? {}) + const release = this.reserve(agentId, sessionId) + try { + const session = this.ctx.sessions.prepare(sessionId, { + ...seed !== undefined ? { seed } : {}, + meta, + }) + // A seeded (forked) create is still a fresh start, NOT a resume. + return await this.startOwned(agentId, agentOptions, session, 'startup', setup) + } finally { + release() + } } /** @@ -226,31 +239,76 @@ export class AgentLoop extends Service implements AgentFactory { * AgentLoop's static inject, so they resolve fine). */ private async resumeWith(persistence: SessionPersistence, options: ResumeAgentOptions): Promise { - this.assertAgentIdFree(options.agentId) - const { meta, events } = await persistence.load(options.resumeSessionId) - // Re-check the agent id AFTER the await: the pre-load check above can go - // stale while load() is pending (a concurrent resume/create may register the - // same id). Re-checking immediately before prepare()/start keeps the - // "no orphaned session on a duplicate id" guarantee under concurrency. - this.assertAgentIdFree(options.agentId) - // Reconstruct the live session with the FULL persisted header (createdAt, - // cwd, lineage) so resume preserves identity, not just the cwd. The seed - // events make lastTurnNumber/deriveMessages continue; the backend already - // has state (cursor) from the load above, so onCreated is a no-op and the - // seed is not re-persisted. prepare() (not create()) so the session - // lifecycle folds into the agent's composite effect (ordered teardown). - const session = this.ctx.sessions.prepare(options.resumeSessionId, { - seed: events, - meta: { - createdAt: meta.createdAt, - ...meta.cwd !== undefined ? { cwd: meta.cwd } : {}, - ...meta.parentSession !== undefined ? { parentSession: meta.parentSession } : {}, - // Reconstruct the seed boundary from the persisted header, NOT from - // `events.length` (the resume seeds the WHOLE stored log). - ...meta.seedLength !== undefined ? { seedLength: meta.seedLength } : {}, - }, - }) - return this.startOwned(options.agentId, options.agentOptions ?? {}, session, 'resume') + // Persistence is an async trust boundary. Reserve, load, reconstruct, and + // publish only the identities/options accepted at entry—never fields + // reread from a caller-owned object after the await. + const agentId = options.agentId + const sessionId = options.resumeSessionId + const agentOptions = structuredClone(options.agentOptions ?? {}) + const setup = options.setup + const { promise: ownerDisposed, resolve: markOwnerDisposed } = Promise.withResolvers() + const { promise: transactionSettled, resolve: markTransactionSettled } = Promise.withResolvers() + let observingOwner = true + // Resume must observe its caller from BEFORE persistence I/O begins. The + // full agent lifecycle does not exist until load returns, so without this + // sentinel a never-settling backend outlives owner disposal and holds both + // public identities forever. `this.ctx.effect` retains the traceable caller + // ownership used by startOwned's lifecycle effect. Install it before even + // reserving the ids: an inactive owner cannot leak a reservation if effect + // registration fails. + const disposeLoadSentinel = this.ctx.effect(() => () => { + if (!observingOwner) return + markOwnerDisposed() + // Owner-triggered teardown does not reach quiescence until the resume + // transaction has observed disposal and released both reservations. + return transactionSettled + }, `agentLoop.resumeLoad(${agentId})`) + try { + const release = this.reserve(agentId, sessionId) + try { + const loadTask = persistence.load(sessionId) + const { meta, events } = await Promise.race([ + loadTask, + ownerDisposed.then(() => { + throw new Error(`agent "${agentId}" resume aborted: owner disposed during persistence load`) + }), + ]) + // An out-of-band direct registry/session insertion can still race this + // service's reservation, so the public enter primitives re-check exact + // liveness at publication. + const session = this.ctx.sessions.prepare(sessionId, { + seed: events, + meta: { + createdAt: meta.createdAt, + ...meta.cwd !== undefined ? { cwd: meta.cwd } : {}, + ...meta.parentSession !== undefined ? { parentSession: meta.parentSession } : {}, + ...meta.seedLength !== undefined ? { seedLength: meta.seedLength } : {}, + }, + }) + // Calling startOwned synchronously installs the complete lifecycle + // effect before it reaches its first setup await. Only then disarm the + // load sentinel: ownership passes directly from one effect to the other + // with no disposal gap. + const starting = this.startOwned(agentId, agentOptions, session, 'resume', setup) + observingOwner = false + await disposeLoadSentinel() + return await starting + } finally { + release() + } + } finally { + try { + // Manual handoff/removal must not return transactionSettled: awaiting + // that promise from inside this transaction would deadlock it. If the + // owner already triggered cleanup, this idempotent second disposal is a + // no-op and the owner's first cleanup remains parked on the shared + // settlement promise. + observingOwner = false + await disposeLoadSentinel() + } finally { + markTransactionSettled() + } + } } /** @@ -260,109 +318,136 @@ export class AgentLoop extends Service implements AgentFactory { * only after the session has already entered the store. */ private assertAgentIdFree(id: AgentId): void { - if (this.ctx.agents.get(id) !== undefined) { + if (this.ctx.agents.get(id) !== undefined || this.pendingAgentIds.has(id)) { throw new Error(`agent "${id}" is already registered`) } } + /** Reserve both public identities for one unpublished async transaction. */ + private reserve(agentId: AgentId, sessionId: SessionId): () => void { + this.assertAgentIdFree(agentId) + if (this.ctx.sessions.get(sessionId) !== undefined || this.pendingSessionIds.has(sessionId)) { + throw new Error(`session "${sessionId}" already exists`) + } + this.pendingAgentIds.add(agentId) + this.pendingSessionIds.add(sessionId) + return () => { + this.pendingAgentIds.delete(agentId) + this.pendingSessionIds.delete(sessionId) + } + } + /** - * Shared: construct a ReactLoopAgent over a PREPARED (not-yet-entered) - * session, then build the ONE composite effect that owns the whole agent - * lifecycle — session entry, registry registration, and the loop. Keeping all - * three in a SINGLE effect (not sibling effects) is load-bearing: a fiber - * unload disposes sibling effects CONCURRENTLY (`Promise.all`), which would - * race the session detach against the loop's closing flush and drop the - * closing `turn/end`. Inside one effect the disposers run as an ORDERED LIFO - * chain — the runtime awaits each disposer's returned promise before the next: - * - * yield session-detach (disposed LAST — detach onAppend + remove entry) - * yield register (disposed 2nd — unregister) - * yield stop-and-drain (disposed FIRST — request loop stop, await agent.done) - * - * So on teardown: the loop is stopped and AWAITED to exit (its final - * `session/flush` + `turn/end` fire through the still-attached `onAppend`), - * THEN the agent is unregistered, THEN the session is detached — capturing the - * closing events before detach, whether the trigger is the handle's `dispose()` - * OR a fiber unload. Rollback safety: each yield runs before the next mutation, - * so a throwing `session/created`/`agent/created` listener unwinds the - * already-yielded disposers instead of leaking. - * - * `source` says why the session began ({@link SessionStartSource}); it is - * emitted as `agent/session-start` once, AFTER the agent is registered (so a - * listener can resolve the agent via `ctx.agents.get(id)` and `inject()` into - * it) and BEFORE the loop starts its first turn. The emit is contained: a - * throwing session-start listener must not abort agent construction — it is - * logged, and the agent still starts. (Unlike a turn-boundary throw, there is - * no open turn here to balance; the durable evidence of a session-start hook - * is whatever it `inject()`ed.) - * - * Returns the agent plus the composite effect's disposer (`disposeAgent`). + * Construct an unpublished agent and synchronously install its complete + * teardown skeleton before any setup await. The closures are assigned their + * session/registry/loop disposers only at publication, while the exact scope + * disposer is nested immediately. Therefore owner unload during setup flips + * `active`, unwinds the scope, and wins the race without any late Cordis + * effect collection. */ - private start( - id: AgentId, options: AgentOptions, session: Session, source: SessionStartSource, - setup?: (agentCtx: Context) => void, - ): { agent: ReactLoopAgent; disposeAgent: () => Promise } { - const agent = new ReactLoopAgent(this.ctx, id, options, session) - // The ONE quiescence boundary every disposal path observes. Cordis effect - // disposers are single-shot but not await-idempotent: when the OWNING - // fiber's unload invokes the raw wrapper first, a concurrent - // `handle.dispose()` calling the same wrapper gets an immediate undefined - // (epoch already cleared) — so the handle path must await THIS promise, - // resolved by the teardown chain's final disposer, not the wrapper's - // return. Every disposer in the chain is deliberately infallible (stop() - // is infallible by contract, unregister/detach contain their listeners, - // the scope unwind is cordis-contained), so the final disposer always - // runs — a throwing link would skip the rest of a cordis dispose chain. + private prepareLifecycle(id: AgentId, options: AgentOptions, session: Session): { + agent: ReactLoopAgent + active: () => boolean + deactivated: Promise + publish: (source: SessionStartSource) => void + disposeAgent: () => Promise + } { + // When creation is invoked through an agent scope (subagents), the owner + // agent's disposed status flips synchronously at handle teardown—earlier + // than Cordis reaches nested scope effects. Include that signal in the + // pre-publication liveness check so a same-turn parent dispose cannot race + // an already-fulfilled setup promise into briefly publishing a child. + const ownerAgent = this.ctx.agent + const ownerFiber = this.ctx.fiber + const driver = prepareReactLoopAgent(this.ctx, id, options, session) + const { agent } = driver + const scope: Scope = createScope(this.ctx, agent) + agent.ctx = scope.ctx.extend({ agent }) + + let active = true + let detachSession: (() => void) | undefined + let detachAgent: (() => void) | undefined + let stop: (() => void) | undefined + const { promise: deactivated, resolve: markDeactivated } = Promise.withResolvers() const { promise: torndown, resolve: markTorndown } = Promise.withResolvers() - const dispose = this.ctx.effect(function* (this: AgentLoop) { - // First-yielded ⇒ disposed LAST: marks true teardown completion. + + const dispose = this.ctx.effect(function* () { + // First yielded, disposed last: every preceding teardown stage settled. yield () => { markTorndown() } - // Mint the agent's scope (key = the agent) and wire the two-phase - // reference: the scope context tags registrations + filters dispatch; - // the extend adds the `ctx.agent` DX own-property on top. The raw - // disposer is yielded IMMEDIATELY (exact function identity nests the - // scope fiber out of the loop fiber's concurrent sibling list), so - // there is no window in which a throw leaves the scope un-nested. - // - // Yield order is the REVERSE of teardown (LIFO). Teardown runs: - // stop/drain → unregister → detach session → unwind scope - // Detach BEFORE the scope unwind is deliberate: the scope fiber's - // unload is asynchronous (fiber inertia), and every disposer chained - // after an async one waits for it — detaching first keeps the - // store/registry rollback SYNCHRONOUS on every failure path (a caller - // that catches a throwing create() observes no half-created agent or - // session, and the ids are immediately reusable), at the cost that a - // scoped listener's own disposer runs after the session left the store - // (it heard the final stop/drain flush while still attached, so - // nothing durable is lost). - const scope = createScope(this.ctx, agent) - agent.ctx = scope.ctx.extend({ agent }) + // Exact identity moves the scope fiber out of the owner's concurrent + // sibling list and into this ordered transaction. yield scope.rawDispose - // Enter the session THROUGH agent.ctx so the store captures the agent's - // scope as the session's dispatch carrier. - yield agent.ctx.sessions.enter(session) + yield () => { + detachSession?.() + detachSession = undefined + } + yield () => { + detachAgent?.() + detachAgent = undefined + } + // Last yielded, disposed first. Keep the pre-publication path + // synchronous: returning a Promise only after the loop actually began + // lets a failed announcement roll back registry/store before create's + // rejection is observed. + yield () => { + active = false + markDeactivated() + if (stop === undefined) return + stop() + return agent.done + } + }, 'agentLoop.lifecycle()') + + let disposing: Promise | undefined + const disposeAgent = (): Promise => (disposing ??= (async () => { + await dispose() + await torndown + })()) + + const publish = (source: SessionStartSource): void => { + // Publication is one synchronous, rollback-covered sequence. Setup has + // already completed, so its scoped listeners observe both announcements. + detachSession = agent.ctx.sessions.enter(session) + detachAgent = this.ctx.agents.enter(agent) this.ctx.sessions.announce(session) - yield this.ctx.agents.register(agent) - // The creator's scoped composition, inside the rollback boundary: a - // throwing setup unwinds LIFO through register → scope → detach, so a - // half-created agent never leaks. Setup REGISTERS (through agent.ctx), - // it never drives — see CreateAgentOptions.setup. - setup?.(agent.ctx) - // Fire AFTER register (a listener can ctx.agents.get(id) + inject()) and - // BEFORE the loop's first turn. Contained: a throwing listener is logged, - // never aborts construction (no open turn to balance here). + this.ctx.agents.announce(agent) + // Setup is over and both entries are live. Open the driving surface just + // before session-start so its listeners retain their supported ability to + // inject/queue, while setup itself can never drive an unpublished agent. + driver.enableDrive() try { agentEvents(this.ctx, agent).emit('agent/session-start', source) } catch (error: unknown) { this.ctx.logger.warn(`agent "${id}": agent/session-start listener threw: ${String(error)}`) } - const stop = agent.start() - // Disposed FIRST (LIFO): request loop stop (sync), then AWAIT the loop's - // actual exit so its closing flush lands while onAppend (yielded above, - // disposed later) is still attached. - yield async () => { stop(); await agent.done } - }.bind(this), 'agentLoop.start()') - return { agent, disposeAgent: async () => { await dispose(); await torndown } } + stop = driver.startDriver() + } + + return { + agent, + active: () => active + && ownerFiber.state !== FiberState.UNLOADING + && ownerFiber.state !== FiberState.DISPOSED + && ownerFiber.state !== FiberState.FAILED + && ownerAgent?.status !== 'disposed', + deactivated, + publish, + disposeAgent, + } + } + + /** Publish a no-setup config agent synchronously. */ + private start( + id: AgentId, options: AgentOptions, session: Session, source: SessionStartSource, + ): { agent: ReactLoopAgent; disposeAgent: () => Promise } { + const lifecycle = this.prepareLifecycle(id, options, session) + try { + lifecycle.publish(source) + return { agent: lifecycle.agent, disposeAgent: lifecycle.disposeAgent } + } catch (error: unknown) { + void lifecycle.disposeAgent() + throw error + } } /** @@ -382,13 +467,37 @@ export class AgentLoop extends Service implements AgentFactory { * `AgentHandle.dispose(): Promise` contract (mirrors the ACP `quiesce()` * helper). */ - private startOwned( + private async startOwned( id: AgentId, options: AgentOptions, session: Session, source: SessionStartSource, - setup?: (agentCtx: Context) => void, - ): AgentHandle { - const { agent, disposeAgent } = this.start(id, options, session, source, setup) - let disposing: Promise | undefined - return { agent, dispose: () => (disposing ??= disposeAgent()) } + setup?: (agentCtx: Context) => Promise | void, + ): Promise { + const lifecycle = this.prepareLifecycle(id, options, session) + try { + // The owner-disposal branch makes a never-settling setup unable to hold + // the transaction or its ID reservations forever. Promise.race installs + // rejection observation on setup even if owner disposal wins first. + const setupTask = Promise.resolve(setup?.(lifecycle.agent.ctx)) + await Promise.race([ + setupTask, + lifecycle.deactivated.then(() => { + throw new Error(`agent "${id}" setup aborted: owner disposed during setup`) + }), + ]) + // Cordis begins a fiber unload synchronously but invokes nested effect + // disposers from its next microtask. Give that already-started unload one + // checkpoint to deactivate this lifecycle before publication; otherwise + // an immediately fulfilled setup continuation can outrun its owner's + // same-turn dispose and briefly publish an already-doomed child. + await Promise.resolve() + if (!lifecycle.active()) { + throw new Error(`agent "${id}" setup aborted: owner disposed during setup`) + } + lifecycle.publish(source) + return { agent: lifecycle.agent, dispose: lifecycle.disposeAgent } + } catch (error: unknown) { + await lifecycle.disposeAgent() + throw error + } } } diff --git a/packages/core/agent-loop/src/loop.ts b/packages/core/agent-loop/src/loop.ts index efceb101fa..b49c38f5da 100644 --- a/packages/core/agent-loop/src/loop.ts +++ b/packages/core/agent-loop/src/loop.ts @@ -11,7 +11,7 @@ import type { Context } from 'cordis' import type { FinishReason, GenerateOptions, LlmCallConfig, Message } from '@deepseek-ai/dsh-llm' import { BlockAssembler, HarnessError, deepFreeze } from '@deepseek-ai/dsh-llm' import { agentEvents, assembleContextFor } from '@deepseek-ai/dsh-agent' -import type { AgentEventDispatch, ContinuationDecision, HookContext, PromptDecision } from '@deepseek-ai/dsh-agent' +import type { AgentEventDispatch, ContinuationDecision, ContinuationStop, HookContext, PromptDecision } from '@deepseek-ai/dsh-agent' import { canonicalHeader } from '@deepseek-ai/dsh-session' import type { Session, TurnEndReason, TurnTrigger } from '@deepseek-ai/dsh-session' import { createTransmissionLog, recordRequestHeader } from './request-log.ts' @@ -20,6 +20,7 @@ import { renderPrompt } from '@deepseek-ai/dsh-system-prompt' import type { PromptAssembly } from '@deepseek-ai/dsh-system-prompt' import type {} from '@deepseek-ai/dsh-tools' import type { ReactLoopAgent } from './agent.ts' +import type { Inbox } from './inbox.ts' /** An Error with an optional machine-readable code (e.g., from LlmError or a throwing plugin). */ type CodedError = Error & { code?: string } @@ -35,6 +36,20 @@ function toError(error: unknown): CodedError { return error instanceof Error ? error : new HarnessError(String(error), 'UNKNOWN', { cause: error }) } +/** + * Validate the runtime result of the terminal-stop serial event. Event types + * protect TypeScript listeners, but JavaScript and casts can still return an + * arbitrary bail value; accepting one as an implicit stop would hide a broken + * policy plugin. + */ +function assertContinuationStop(value: unknown): asserts value is ContinuationStop | undefined { + if (value === undefined) return + const candidate = Object(value) as { action?: unknown } + if (candidate.action !== 'stop') { + throw new Error('agent/turn-stop returned an invalid result; expected { action: \'stop\' } or undefined') + } +} + /** * Map a model-call {@link FinishReason} to the step error it should raise, or * `undefined` when the step completed normally. @@ -108,6 +123,8 @@ function stepFinishReason(finish: FinishReason): TurnEndReason | undefined { * loop testable without a real agent. */ export interface LoopHandle { + /** Native-private agent inbox handed to the driver only at internal startup. */ + readonly inbox: Inbox setStatus(status: 'idle' | 'running'): void setAbort(controller: AbortController | undefined): void /** Resolves when the agent is disposed — unblocks the idle wait. */ @@ -185,6 +202,9 @@ export interface LoopHandle { * {action: hadToolCalls||steered ? 'continue':'stop'}; a continue.reason is * recorded as next-step steering * if action==stop && steering arrived (step/end/continuation listeners): continue anyway + * terminal = serial agent/turn-stop ⟵ stop or abstain; after all ordinary + * continuation and steering folding + * if terminal: discard pending steering and break * if action==stop: break * session('turn/end') ⟵ durable turn boundary (no agent/* mirror) * await ctx.sessions.flush(session) ⟵ durability checkpoint (store-owned carrier) @@ -210,7 +230,7 @@ export async function runLoop(ctx: Context, agent: ReactLoopAgent, handle: LoopH const events = agentEvents(ctx, agent) while (!handle.isDisposed()) { - await agent.inbox.waitForQueued(handle.disposed) + await handle.inbox.waitForQueued(handle.disposed) if (handle.isDisposed()) break // Pre-step cancel (window 1): a `cancel()` landed after a `send()` woke the @@ -228,7 +248,7 @@ export async function runLoop(ctx: Context, agent: ReactLoopAgent, handle: LoopH // resolve before it runs (the quiescence contract). if (handle.isCancelled()) { handle.clearCancel() - if (!agent.inbox.hasQueued) { + if (!handle.inbox.hasQueued) { handle.settleIdle() continue } @@ -250,7 +270,7 @@ export async function runLoop(ctx: Context, agent: ReactLoopAgent, handle: LoopH // is still queued and unrun (the same early-resolve race window 1 fixes). if (handle.isCancelled()) { handle.clearCancel() - if (!agent.inbox.hasQueued) { + if (!handle.inbox.hasQueued) { handle.setStatus('idle') continue } @@ -261,8 +281,9 @@ export async function runLoop(ctx: Context, agent: ReactLoopAgent, handle: LoopH // the loop waits above, so the next real turn must continue from whatever // turn number is actually last in the log — a stale counter would collide. const turn = lastTurnNumber(session) + 1 + let terminalStopped = false try { - await runTurn(ctx, events, agent, handle, turn, transmission) + terminalStopped = await runTurn(ctx, events, agent, handle, turn, transmission) } catch (error: unknown) { // Backstop: runTurn rethrows only a PRE-turn throw (the invariant guard // before turn/start) — no turn/start was appended, so no turn is open and @@ -286,27 +307,30 @@ export async function runLoop(ctx: Context, agent: ReactLoopAgent, handle: LoopH // cancelled. handle.clearCancel() - // Steering that arrived too late to join this turn (turn-end listeners, - // flush) becomes a queued message — it must never be stranded. (A cancelled - // turn already cleared its steering, so there is nothing to re-enqueue.) - for (const message of agent.inbox.drainSteering()) { - agent.inbox.enqueue(message) + // Steering that arrived too late to join an ordinary turn (turn-end + // listeners, flush) becomes queued input so it is never stranded. A + // terminal-stop owner is the deliberate exception: discard the steering + // again after the close + flush window so terminal policy cannot be undone + // after its in-turn drain. Ordinary queued sends live in a separate FIFO and + // remain untouched. + for (const message of handle.inbox.drainSteering()) { + if (!terminalStopped) handle.inbox.enqueue(message) } - if (!agent.inbox.hasQueued) handle.setStatus('idle') + if (!handle.inbox.hasQueued) handle.setStatus('idle') } } async function runTurn( ctx: Context, events: AgentEventDispatch, agent: ReactLoopAgent, handle: LoopHandle, turn: number, transmission: TransmissionLog, -): Promise { +): Promise { const { session } = agent // --- Pre-turn. A throw here (the invariant guard) is owed NO turn/end — // turn/start has not been appended — so it propagates to runLoop's backstop // untouched. The queued messages are drained here but appended AFTER // turn/start (below), so every event in the log lives inside a turn. - const queued = agent.inbox.drainQueued() + const queued = handle.inbox.drainQueued() const first = queued[0] /* v8 ignore next 3 -- invariant guard: runLoop only calls runTurn when hasQueued */ if (!first) throw new Error('runTurn invariant violated: no queued message at turn start') @@ -316,6 +340,7 @@ async function runTurn( let step = 0 let stepOpen = false let errorReported = false + let terminalStopped = false // Close the open step exactly once (idempotent via stepOpen). Step boundaries // are durable session events only — there is no agent/* step emit to mirror @@ -449,7 +474,7 @@ async function runTurn( // Steering from the previous round's continuation listeners joins before // the request. - drainSteering(agent, turn) + drainSteering(agent, handle.inbox, turn) // The step's AbortController exists BEFORE any async pre-step work so a // dispose() or cancel() — in a synchronous turn-start listener or an @@ -616,7 +641,7 @@ async function runTurn( if (stepReason) reason = stepReason // Steering that arrived during streaming/tool execution. - const steered = drainSteering(agent, turn) + const steered = drainSteering(agent, handle.inbox, turn) if (closeStep()) break @@ -638,14 +663,39 @@ async function runTurn( // iteration drains it before its request — the typed twin of the /goal // step/end-steer pattern. if (decision.action === 'continue' && decision.reason) { - agent.inbox.steer({ content: decision.reason.content, source: decision.reason.source }) + handle.inbox.steer({ content: decision.reason.content, source: decision.reason.source }) } let shouldContinue = decision.action === 'continue' // Steering from step/end session-event or continuation listeners (the // /goal pattern) demands the model see it — it overrides a stop decision; // the next iteration's drain records it. - if (!shouldContinue && agent.inbox.hasSteering) shouldContinue = true + if (!shouldContinue && handle.inbox.hasSteering) shouldContinue = true + + // Terminal policy runs only AFTER the extensible continuation waterfall, + // its optional reason, and late steering have all been folded. Unlike the + // waterfall, this serial seam is monotonic: the first stop bail wins, and + // no later listener or steering override can resurrect the turn. + let terminalStop = false + try { + const stop = await events.strictSerial('agent/turn-stop', turn) + assertContinuationStop(stop) + terminalStop = stop !== undefined + } catch (error: unknown) { + // A broken terminal policy is an ordinary continuation failure: fail + // this turn closed while leaving the driver alive for later turns. + failTurn(toError(error)) + break + } + if (terminalStop) { + terminalStopped = true + // A continuation reason or listener may have queued steering before the + // terminal checkpoint. Discard only steering (never ordinary queued + // prompts) so it cannot become a next step or be re-enqueued as a fresh + // turn by runLoop's late-steering fallback. + handle.inbox.drainSteering() + shouldContinue = false + } // A cancel that landed during the continuation window — after the step's // AbortController was cleared (setAbort(undefined)) but before the next @@ -720,11 +770,12 @@ async function runTurn( // contained: a throwing agent/error listener must not escape the loop. } } + return terminalStopped } /** Drain the steering queue into the session. Returns whether any arrived. */ -function drainSteering(agent: ReactLoopAgent, turn: number): boolean { - const messages = agent.inbox.drainSteering() +function drainSteering(agent: ReactLoopAgent, inbox: Inbox, turn: number): boolean { + const messages = inbox.drainSteering() for (const message of messages) { agent.session.append('steering/message', { turn, content: message.content, source: message.source }, { surfaceOp: 'append' }) } diff --git a/packages/core/agent-loop/tests/agent.spec.ts b/packages/core/agent-loop/tests/agent.spec.ts index ed163bf4c2..d4f9d1e3d4 100644 --- a/packages/core/agent-loop/tests/agent.spec.ts +++ b/packages/core/agent-loop/tests/agent.spec.ts @@ -7,6 +7,7 @@ import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' import AgentRegistry from '@deepseek-ai/dsh-agent' import AgentLoop, { ReactLoopAgent } from '@deepseek-ai/dsh-agent-loop' +import { prepareReactLoopAgent } from '../src/agent.ts' import { MockAdapter, textResponse } from './mock-adapter.ts' async function harness(adapter: MockAdapter) { @@ -226,16 +227,19 @@ describe('ReactLoopAgent', () => { }) it('disposer is idempotent (double-stop)', async () => { - // Create a bare ReactLoopAgent and call start() directly to get the disposer. - // Then call it twice — the second call hits the early-return branch. + // Create a bare ReactLoopAgent and start it through the package-internal + // test seam. Then call its disposer twice — the second call hits the + // early-return branch. const ctx = new Context() await ctx.plugin(SessionStore) const session = ctx.sessions.create(SessionId('test')) - const agent = new ReactLoopAgent(ctx, AgentId('bare'), { model: 'mock' }, session) + const prepared = prepareReactLoopAgent(ctx, AgentId('bare'), { model: 'mock' }, session) + const { agent } = prepared // Start the loop to get the disposer; the agent waits for messages // (idle, never-resolving cancel), so it will stay idle. - const dispose = agent.start() + prepared.enableDrive() + const dispose = prepared.startDriver() // First dispose dispose() @@ -324,7 +328,7 @@ describe('ReactLoopAgent', () => { // Covers the waiter's disposed arm: whenIdle() queues an internal waiter // while running (not the fast path), then the disposer settles it and chains // `done` (loop exit), not an eager resolve. A bare ReactLoopAgent + direct - // start() disposer keeps the emit synchronous. + // internal driver disposer keeps the emit synchronous. const ctx = new Context() await ctx.plugin(LlmService) await ctx.plugin(SessionStore) @@ -334,8 +338,10 @@ describe('ReactLoopAgent', () => { const adapter = new MockAdapter(['hang']) ctx.llm.registerAdapter(['mock'], adapter) const session = ctx.sessions.create(SessionId('bare')) - const agent = new ReactLoopAgent(ctx, AgentId('bare'), { model: 'mock' }, session) - const dispose = agent.start() + const prepared = prepareReactLoopAgent(ctx, AgentId('bare'), { model: 'mock' }, session) + const { agent } = prepared + prepared.enableDrive() + const dispose = prepared.startDriver() agent.send([{ type: 'text', text: 'go' }]) await new Promise(r => setTimeout(r, 30)) expect(agent.status).toBe('running') diff --git a/packages/core/agent-loop/tests/cancel.spec.ts b/packages/core/agent-loop/tests/cancel.spec.ts index 63a75447ca..56376b69a7 100644 --- a/packages/core/agent-loop/tests/cancel.spec.ts +++ b/packages/core/agent-loop/tests/cancel.spec.ts @@ -202,7 +202,7 @@ describe('Agent.cancel()', () => { await ctx.plugin(AgentLoop, { agents: [] }) ctx.llm.registerAdapter(['mock'], adapter) - const handle = ctx.agents.create({ + const handle = await ctx.agents.create({ agentId: AgentId('a-dispose-prefix'), sessionId: SessionId('dispose-prefix-session'), agentOptions: { model: 'mock' }, @@ -333,7 +333,7 @@ describe('Agent.cancel()', () => { await ctx.plugin(AgentLoop, { agents: [] }) ctx.llm.registerAdapter(['mock'], adapter) - const handle = ctx.agents.create({ + const handle = await ctx.agents.create({ agentId: AgentId('a-dispose-step-start'), sessionId: SessionId('dispose-step-start-session'), agentOptions: { model: 'mock' }, diff --git a/packages/core/agent-loop/tests/config-session-id.spec.ts b/packages/core/agent-loop/tests/config-session-id.spec.ts index a645fb3553..97f04cbbca 100644 --- a/packages/core/agent-loop/tests/config-session-id.spec.ts +++ b/packages/core/agent-loop/tests/config-session-id.spec.ts @@ -78,7 +78,7 @@ describe('config-driven session id', () => { await ctx1.plugin(AgentLoop, { agents: [] }) await ctx1.plugin(SessionPersistenceJsonl, { root }) ctx1.llm.registerAdapter(['mock'], new MockAdapter([textResponse('first')])) - const a1 = ctx1.agents.create({ agentId: AgentId('main'), sessionId: SessionId('sticky-1') }).agent as ReactLoopAgent + const a1 = (await ctx1.agents.create({ agentId: AgentId('main'), sessionId: SessionId('sticky-1') })).agent as ReactLoopAgent a1.send([{ type: 'text', text: 'remember me' }], { source: { kind: 'user' } }) await waitForIdle(ctx1, a1) await ctx1.fiber.dispose() diff --git a/packages/core/agent-loop/tests/inbox.spec.ts b/packages/core/agent-loop/tests/inbox.spec.ts index 5406197b75..79a518ba2b 100644 --- a/packages/core/agent-loop/tests/inbox.spec.ts +++ b/packages/core/agent-loop/tests/inbox.spec.ts @@ -1,5 +1,5 @@ import { describe, expect, it } from 'vitest' -import { Inbox } from '@deepseek-ai/dsh-agent-loop' +import { Inbox } from '../src/inbox.ts' function resolverPair() { let r!: () => void diff --git a/packages/core/agent-loop/tests/loop.spec.ts b/packages/core/agent-loop/tests/loop.spec.ts index eebf56ee82..734d4a73a9 100644 --- a/packages/core/agent-loop/tests/loop.spec.ts +++ b/packages/core/agent-loop/tests/loop.spec.ts @@ -168,7 +168,7 @@ describe('agent loop', () => { it('resolves {{cwd}} from the agent session workspace (factory create with meta.cwd)', async () => { const adapter = new MockAdapter([textResponse('ok')]) const ctx = await harness(adapter, 'Working in {{cwd}}.') - const handle = ctx.agents.create({ + const handle = await ctx.agents.create({ agentId: AgentId('a-cwd'), sessionId: SessionId('s-cwd'), meta: { cwd: '/work/space' }, @@ -243,6 +243,44 @@ describe('agent loop', () => { expect(adapter.requests[0]!.system).toBe('You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou run on mock.') }) + it.each([ + ['BigInt', { n: 1n }], + ['Map', new Map([['key', 'value']])], + ['class instance', new (class ResultMeta { x = 1 })()], + ])('normalizes non-JSON tool meta (%s) before the durable result commit', async (_kind, meta) => { + const adapter = new MockAdapter([ + toolCallResponse('bad-meta-call', 'bad-meta', {}, 'calling'), + textResponse('recovered'), + ]) + const ctx = await harness(adapter) + ctx.tools.register(defineTool({ + name: 'bad-meta', + description: 'returns invalid durable metadata', + parameters: {}, + execute: () => Promise.resolve({ content: [{ type: 'text' as const, text: 'apparent success' }], meta }), + })) + const agent = ctx.agentLoop.create(AgentId('bad-meta-agent'), { model: 'mock' }) + + send(agent, 'use the tool') + await waitForIdle(ctx, agent) + + const result = agent.session.events.find(event => event.type === 'tool/result') + expect(result?.type).toBe('tool/result') + if (result?.type === 'tool/result') { + expect(result.data.callId).toBe('bad-meta-call') + expect(result.data.isError).toBe(true) + expect(result.data.meta).toBeUndefined() + expect(result.data.content).toEqual([{ + type: 'text', + text: 'Error: tools/execute must return a losslessly JSON-serializable ToolExecutionResult', + }]) + } + // The normalized failure was durably logged and fed back to the model; the + // turn continued normally instead of failing after an apparent success. + expect(adapter.requests).toHaveLength(2) + expect(JSON.stringify(adapter.requests[1]!.messages)).toContain('losslessly JSON-serializable') + }) + it('omits the system field when a system-prompt/assemble veto empties the assembly', async () => { // The documented escape valve: a deployment that must drop the harness // openers short-circuits the assemble waterfall; the request then carries diff --git a/packages/core/agent-loop/tests/request-reconstruction.spec.ts b/packages/core/agent-loop/tests/request-reconstruction.spec.ts index f1d6b02ac4..bb6d613954 100644 --- a/packages/core/agent-loop/tests/request-reconstruction.spec.ts +++ b/packages/core/agent-loop/tests/request-reconstruction.spec.ts @@ -222,7 +222,7 @@ describe('request stability across the loop', () => { // one's full log (the resume/fork path). const adapter2 = new MockAdapter([textResponse('two')]) const ctx2 = await harness(adapter2) - const handle = ctx2.agents.create({ + const handle = await ctx2.agents.create({ agentId: AgentId('gen2'), sessionId: SessionId('gen2-session'), seed: [...agent.session.events], diff --git a/packages/core/agent-loop/tests/resume.spec.ts b/packages/core/agent-loop/tests/resume.spec.ts index 805f61d392..2a4ba7e904 100644 --- a/packages/core/agent-loop/tests/resume.spec.ts +++ b/packages/core/agent-loop/tests/resume.spec.ts @@ -19,6 +19,10 @@ afterEach(async () => { for (const d of dirs.splice(0)) await rm(d, { recursive: async function persistentHarness(adapter: MockAdapter): Promise<{ ctx: Context; root: string }> { const root = await mkdtemp(join(tmpdir(), 'dsh-resume-')) dirs.push(root) + return { ctx: await mountPersistentHarness(root, adapter), root } +} + +async function mountPersistentHarness(root: string, adapter: MockAdapter): Promise { const ctx = new Context() await ctx.plugin(LlmService) await ctx.plugin(SessionStore) @@ -28,7 +32,22 @@ async function persistentHarness(adapter: MockAdapter): Promise<{ ctx: Context; await ctx.plugin(AgentLoop, { agents: [] }) await ctx.plugin(SessionPersistenceJsonl, { root }) ctx.llm.registerAdapter(['mock'], adapter) - return { ctx, root } + return ctx +} + +async function persistSession(sessionId: SessionId): Promise { + const { ctx, root } = await persistentHarness(new MockAdapter([textResponse('seed')])) + // Persistence deliberately has no artifact for a truly empty session. A + // balanced completed turn is the smallest resumable log and avoids running + // the model merely to construct this lifecycle fixture. + const seed: SessionEvent[] = [ + { type: 'turn/start', seq: 0, time: 1, data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } } }, + { type: 'turn/end', seq: 1, time: 2, data: { turn: 1, reason: { kind: 'completed' } } }, + ] + const session = ctx.sessions.create(sessionId, { seed }) + await ctx.sessions.flush(session) + await ctx.fiber.dispose() + return root } function waitForIdle(ctx: Context, agent: ReactLoopAgent): Promise { @@ -39,11 +58,22 @@ function waitForIdle(ctx: Context, agent: ReactLoopAgent): Promise { }) } +/** Fail a lifecycle regression promptly instead of waiting for Vitest's suite timeout. */ +async function promptly(task: Promise): Promise { + const timeout = Promise.withResolvers() + const timer = setTimeout(() => { timeout.reject(new Error('lifecycle task did not settle promptly')) }, 1000) + try { + return await Promise.race([task, timeout.promise]) + } finally { + clearTimeout(timer) + } +} + describe('the session-persistence RFC: AgentLoop factory create/resume', () => { it('createAgent uses the caller-supplied sessionId (not ${id}-session)', async () => { const adapter = new MockAdapter([textResponse('hi')]) const { ctx } = await persistentHarness(adapter) - const { agent } = ctx.agents.create({ agentId: AgentId('a1'), sessionId: SessionId('custom-session'), meta: { cwd: '/w' } }) + const { agent } = await ctx.agents.create({ agentId: AgentId('a1'), sessionId: SessionId('custom-session'), meta: { cwd: '/w' } }) expect(agent.session.id).toBe('custom-session') expect(agent.session.header.cwd).toBe('/w') await ctx.fiber.dispose() @@ -52,10 +82,10 @@ describe('the session-persistence RFC: AgentLoop factory create/resume', () => { it('createAgent rejects a duplicate agent id BEFORE creating the session (no orphan)', async () => { const adapter = new MockAdapter([textResponse('hi')]) const { ctx } = await persistentHarness(adapter) - ctx.agents.create({ agentId: AgentId('dup'), sessionId: SessionId('sess-a') }) + await ctx.agents.create({ agentId: AgentId('dup'), sessionId: SessionId('sess-a') }) // A second create with the SAME agent id but a fresh session id must reject // up front — and must NOT leave an orphaned 'sess-b' session behind. - expect(() => ctx.agents.create({ agentId: AgentId('dup'), sessionId: SessionId('sess-b') })).toThrow(/already registered/) + await expect(ctx.agents.create({ agentId: AgentId('dup'), sessionId: SessionId('sess-b') })).rejects.toThrow(/already registered/) expect(ctx.sessions.get(SessionId('sess-b'))).toBeUndefined() await ctx.fiber.dispose() }) @@ -63,7 +93,7 @@ describe('the session-persistence RFC: AgentLoop factory create/resume', () => { it('createAgent works without meta (no cwd)', async () => { const adapter = new MockAdapter([textResponse('hi')]) const { ctx } = await persistentHarness(adapter) - const { agent } = ctx.agents.create({ agentId: AgentId('a-nometa'), sessionId: SessionId('nometa-session') }) + const { agent } = await ctx.agents.create({ agentId: AgentId('a-nometa'), sessionId: SessionId('nometa-session') }) expect(agent.session.id).toBe('nometa-session') expect(agent.session.header.cwd).toBeUndefined() await ctx.fiber.dispose() @@ -73,7 +103,7 @@ describe('the session-persistence RFC: AgentLoop factory create/resume', () => { // Lifecycle 1: create a no-cwd session and run a turn. const adapter1 = new MockAdapter([textResponse('a')]) const { ctx: ctx1, root } = await persistentHarness(adapter1) - const a1 = ctx1.agents.create({ agentId: AgentId('m'), sessionId: SessionId('nocwd-sess') }).agent as ReactLoopAgent + const a1 = (await ctx1.agents.create({ agentId: AgentId('m'), sessionId: SessionId('nocwd-sess') })).agent as ReactLoopAgent a1.send([{ type: 'text', text: 'q' }], { source: { kind: 'user' } }) await waitForIdle(ctx1, a1) await ctx1.fiber.dispose() @@ -100,7 +130,7 @@ describe('the session-persistence RFC: AgentLoop factory create/resume', () => { const { ctx: ctx1, root } = await persistentHarness(adapter1) const sources1: string[] = [] ctx1.on('agent/session-start', (_agent, source) => void sources1.push(source)) - const a1 = ctx1.agents.create({ agentId: AgentId('s'), sessionId: SessionId('start-sess') }).agent as ReactLoopAgent + const a1 = (await ctx1.agents.create({ agentId: AgentId('s'), sessionId: SessionId('start-sess') })).agent as ReactLoopAgent expect(sources1).toEqual(['startup']) a1.send([{ type: 'text', text: 'q' }], { source: { kind: 'user' } }) await waitForIdle(ctx1, a1) @@ -124,6 +154,224 @@ describe('the session-persistence RFC: AgentLoop factory create/resume', () => { await ctx2.fiber.dispose() }) + it('resume awaits setup while unpublished, then publishes a fully composed world in order', async () => { + const sessionId = SessionId('resume-setup-success') + const root = await persistSession(sessionId) + const ctx = await mountPersistentHarness(root, new MockAdapter([textResponse('next')])) + const gate = Promise.withResolvers() + const setupStarted = Promise.withResolvers() + const order: string[] = [] + + ctx.on('session/created', (session) => { + expect(ctx.sessions.get(session.id)).toBe(session) + expect(ctx.agents.get(AgentId('resumed-atomic'))?.session).toBe(session) + order.push('session/created') + }) + ctx.on('agent/created', (agent) => { + expect(() => { agent.cancel('too early') }).toThrow(/cannot cancel before creation setup completes/) + order.push('agent/created') + }) + ctx.on('agent/session-start', (agent) => { + expect(() => { agent.cancel('now live') }).not.toThrow() + order.push('agent/session-start') + }) + + const resuming = ctx.agents.resume({ + agentId: AgentId('resumed-atomic'), + resumeSessionId: sessionId, + agentOptions: { model: 'mock' }, + setup: async (agentCtx) => { + expect(agentCtx.agent?.id).toBe(AgentId('resumed-atomic')) + expect(agentCtx.agent?.session.events).toHaveLength(2) + agentCtx.on('session/created', () => void order.push('setup-listener:session/created')) + agentCtx.on('agent/created', () => void order.push('setup-listener:agent/created')) + order.push('setup:start') + setupStarted.resolve(undefined) + await gate.promise + order.push('setup:end') + }, + }) + + await setupStarted.promise + expect(ctx.agents.get(AgentId('resumed-atomic'))).toBeUndefined() + expect(ctx.sessions.get(sessionId)).toBeUndefined() + expect(order).toEqual(['setup:start']) + + gate.resolve(undefined) + const handle = await resuming + expect(order).toEqual([ + 'setup:start', + 'setup:end', + 'session/created', + 'setup-listener:session/created', + 'agent/created', + 'setup-listener:agent/created', + 'agent/session-start', + ]) + await handle.dispose() + await ctx.fiber.dispose() + }) + + it('resume setup rejection publishes nothing, unwinds, and releases both identities', async () => { + const sessionId = SessionId('resume-setup-reject') + const root = await persistSession(sessionId) + const ctx = await mountPersistentHarness(root, new MockAdapter([textResponse('next')])) + const published: string[] = [] + ctx.on('session/created', () => void published.push('session/created')) + ctx.on('agent/created', () => void published.push('agent/created')) + ctx.on('agent/session-start', () => void published.push('agent/session-start')) + + await expect(ctx.agents.resume({ + agentId: AgentId('resume-reject'), + resumeSessionId: sessionId, + agentOptions: { model: 'mock' }, + setup: async () => { + await Promise.resolve() + throw new Error('resume setup failed') + }, + })).rejects.toThrow('resume setup failed') + + expect(published).toEqual([]) + expect(ctx.agents.get(AgentId('resume-reject'))).toBeUndefined() + expect(ctx.sessions.get(sessionId)).toBeUndefined() + const retry = await ctx.agents.resume({ + agentId: AgentId('resume-reject'), + resumeSessionId: sessionId, + agentOptions: { model: 'mock' }, + }) + await retry.dispose() + await ctx.fiber.dispose() + }) + + it('owner unload aborts resume setup and cannot publish after the callback settles', async () => { + const sessionId = SessionId('resume-setup-owner-unload') + const root = await persistSession(sessionId) + const ctx = await mountPersistentHarness(root, new MockAdapter([textResponse('next')])) + const gate = Promise.withResolvers() + const setupStarted = Promise.withResolvers() + const published: string[] = [] + ctx.on('session/created', () => void published.push('session/created')) + ctx.on('agent/created', () => void published.push('agent/created')) + + let resuming!: ReturnType + const owner = await ctx.plugin(Object.assign((inner: Context) => { + resuming = inner.agents.resume({ + agentId: AgentId('resume-owner-race'), + resumeSessionId: sessionId, + agentOptions: { model: 'mock' }, + setup: async () => { + setupStarted.resolve(undefined) + await gate.promise + }, + }) + }, { inject: ['agents'] })) + await setupStarted.promise + + await owner.dispose() + await expect(resuming).rejects.toThrow(/owner disposed during setup/) + expect(published).toEqual([]) + expect(ctx.agents.get(AgentId('resume-owner-race'))).toBeUndefined() + expect(ctx.sessions.get(sessionId)).toBeUndefined() + + gate.resolve(undefined) + await Promise.resolve() + expect(published).toEqual([]) + await ctx.fiber.dispose() + }) + + it('owner unload aborts a never-settling persistence load, releases identities, and blocks late publication', async () => { + const sessionId = SessionId('resume-load-owner-unload') + const agentId = AgentId('resume-load-race') + const root = await persistSession(sessionId) + const ctx = await mountPersistentHarness(root, new MockAdapter([textResponse('next')])) + const snapshot = await ctx.sessionPersistence.load(sessionId) + const lateLoad = Promise.withResolvers() + const loadStarted = Promise.withResolvers() + let loads = 0 + ctx.sessionPersistence.load = (id) => { + expect(id).toBe(sessionId) + loads += 1 + if (loads === 1) { + loadStarted.resolve(undefined) + return lateLoad.promise + } + return Promise.resolve(structuredClone(snapshot)) + } + + const published: string[] = [] + ctx.on('session/created', () => void published.push('session/created')) + ctx.on('agent/created', () => void published.push('agent/created')) + ctx.on('agent/session-start', () => void published.push('agent/session-start')) + + let resuming!: ReturnType + const owner = await ctx.plugin(Object.assign((inner: Context) => { + resuming = inner.agents.resume({ agentId, resumeSessionId: sessionId, agentOptions: { model: 'mock' } }) + }, { inject: ['agents'] })) + await loadStarted.promise + + const rejection = expect(promptly(resuming)).rejects.toThrow(/owner disposed during persistence load/) + await promptly(owner.dispose()) + expect(published).toEqual([]) + expect(ctx.agents.get(agentId)).toBeUndefined() + expect(ctx.sessions.get(sessionId)).toBeUndefined() + + // owner.dispose() itself awaited transaction settlement and reservation + // release: reuse the same identities BEFORE awaiting the resume rejection. + const retry = await promptly(ctx.agents.resume({ agentId, resumeSessionId: sessionId, agentOptions: { model: 'mock' } })) + await rejection + expect(loads).toBe(2) + expect(published).toEqual(['session/created', 'agent/created', 'agent/session-start']) + + // Settlement of the abandoned backend promise cannot resume the old + // transaction or emit a second publication after the retry owns the ids. + lateLoad.resolve(structuredClone(snapshot)) + await Promise.resolve() + await Promise.resolve() + expect(ctx.agents.get(agentId)).toBe(retry.agent) + expect(ctx.sessions.get(sessionId)).toBe(retry.agent.session) + expect(published).toEqual(['session/created', 'agent/created', 'agent/session-start']) + + await retry.dispose() + await ctx.fiber.dispose() + }) + + it('snapshots resume identities and agent options before persistence load', async () => { + const sessionId = SessionId('resume-snapshot-source') + const root = await persistSession(sessionId) + const ctx = await mountPersistentHarness(root, new MockAdapter([textResponse('next')])) + const loaded = await ctx.sessionPersistence.load(sessionId) + const loadGate = Promise.withResolvers() + ctx.sessionPersistence.load = () => loadGate.promise + + const occupied = await ctx.agents.create({ + agentId: AgentId('occupied-agent'), + sessionId: SessionId('occupied-session'), + agentOptions: { model: 'mock' }, + }) + const options = { + agentId: AgentId('accepted-agent'), + resumeSessionId: sessionId, + agentOptions: { model: 'mock' }, + } + const resuming = ctx.agents.resume(options) + + options.agentId = AgentId('occupied-agent') + options.resumeSessionId = SessionId('occupied-session') + options.agentOptions.model = 'mutated-model' + loadGate.resolve(structuredClone(loaded)) + + const resumed = await resuming + expect(resumed.agent.id).toBe(AgentId('accepted-agent')) + expect(resumed.agent.session.id).toBe(sessionId) + expect(resumed.agent.options.model).toBe('mock') + expect(ctx.agents.get(AgentId('occupied-agent'))).toBe(occupied.agent) + expect(ctx.sessions.get(SessionId('occupied-session'))).toBe(occupied.agent.session) + + await resumed.dispose() + await occupied.dispose() + await ctx.fiber.dispose() + }) + it('resume of a forked session preserves the parentSession lineage and seed boundary in the header', async () => { // Lifecycle 1: persist a FORKED session (carries parentSession + seedLength // in its header) by creating it with a complete-turn seed — the write path @@ -170,7 +418,7 @@ describe('the session-persistence RFC: AgentLoop factory create/resume', () => { // disk, since a crash before the next turn would otherwise lose it. const adapter1 = new MockAdapter([textResponse('answer')]) const { ctx: ctx1, root } = await persistentHarness(adapter1) - const a1 = ctx1.agents.create({ agentId: AgentId('m'), sessionId: SessionId('inject-sess'), meta: { cwd: '/w' } }).agent as ReactLoopAgent + const a1 = (await ctx1.agents.create({ agentId: AgentId('m'), sessionId: SessionId('inject-sess'), meta: { cwd: '/w' } })).agent as ReactLoopAgent a1.send([{ type: 'text', text: 'q' }], { source: { kind: 'user' } }) await waitForIdle(ctx1, a1) a1.inject([{ type: 'text', text: 'background task 42 finished' }], { source: { kind: 'plugin', plugin: 'tool-bash' } }) @@ -195,7 +443,7 @@ describe('the session-persistence RFC: AgentLoop factory create/resume', () => { // drop it on reload (the bug this guards). const adapter1 = new MockAdapter([textResponse('answer')]) const { ctx: ctx1, root } = await persistentHarness(adapter1) - const a1 = ctx1.agents.create({ agentId: AgentId('m'), sessionId: SessionId('inject-sess'), meta: { cwd: '/w' } }).agent as ReactLoopAgent + const a1 = (await ctx1.agents.create({ agentId: AgentId('m'), sessionId: SessionId('inject-sess'), meta: { cwd: '/w' } })).agent as ReactLoopAgent a1.send([{ type: 'text', text: 'q' }], { source: { kind: 'user' } }) await waitForIdle(ctx1, a1) a1.inject([{ type: 'text', text: 'background task 42 finished' }], { source: { kind: 'plugin', plugin: 'tool-bash' } }) @@ -223,7 +471,7 @@ describe('the session-persistence RFC: AgentLoop factory create/resume', () => { // Lifecycle 1: run one full turn, persisting it. const adapter1 = new MockAdapter([textResponse('first answer')]) const { ctx: ctx1, root } = await persistentHarness(adapter1) - const a1 = ctx1.agents.create({ agentId: AgentId('main'), sessionId: SessionId('sess-resume'), meta: { cwd: '/w' } }).agent as ReactLoopAgent + const a1 = (await ctx1.agents.create({ agentId: AgentId('main'), sessionId: SessionId('sess-resume'), meta: { cwd: '/w' } })).agent as ReactLoopAgent a1.send([{ type: 'text', text: 'first question' }], { source: { kind: 'user' } }) await waitForIdle(ctx1, a1) const events1 = [...a1.session.events] diff --git a/packages/core/agent-loop/tests/review-fixes.spec.ts b/packages/core/agent-loop/tests/review-fixes.spec.ts index e487a2c428..e527099a88 100644 --- a/packages/core/agent-loop/tests/review-fixes.spec.ts +++ b/packages/core/agent-loop/tests/review-fixes.spec.ts @@ -6,6 +6,7 @@ import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry, { defineTool } from '@deepseek-ai/dsh-tools' import AgentRegistry, { AgentId, type ContinuationDecision } from '@deepseek-ai/dsh-agent' import AgentLoop, { ReactLoopAgent } from '@deepseek-ai/dsh-agent-loop' +import { prepareReactLoopAgent } from '../src/agent.ts' import * as Invariants from '@deepseek-ai/dsh-invariants' import { MockAdapter, textResponse, toolCallResponse } from './mock-adapter.ts' @@ -458,8 +459,10 @@ describe('MEDIUM: turn numbering continues across seeded (forked) sessions', () ctx2.llm.registerAdapter(['mock'], second) const seeded = ctx2.sessions.create(SessionId('forked'), { seed: [...agent.session.events] }) - const forked = new ReactLoopAgent(ctx2, AgentId('forked-agent'), { model: 'mock' }, seeded) - ctx2.effect(() => forked.start()) + const prepared = prepareReactLoopAgent(ctx2, AgentId('forked-agent'), { model: 'mock' }, seeded) + const forked = prepared.agent + prepared.enableDrive() + ctx2.effect(() => prepared.startDriver()) const turns: number[] = [] ctx2.on('session/event', (_s, event) => { if (event.type === 'turn/start') turns.push(event.data.turn) }) diff --git a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts index b89f06727d..085629db64 100644 --- a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts +++ b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts @@ -8,6 +8,7 @@ import AgentRegistry, { AgentId, agentEvents, assembleContextFor } from '@deepse import type { Agent } from '@deepseek-ai/dsh-agent' import { scopeOf } from '@deepseek-ai/dsh-scope' import AgentLoop, { ReactLoopAgent } from '@deepseek-ai/dsh-agent-loop' +import * as concreteAgentModule from '../src/agent.ts' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import { MockAdapter, textResponse } from './mock-adapter.ts' @@ -49,7 +50,7 @@ describe('agent scope lifecycle', () => { it('scoped registrations live in the agent world and die with the agent', async () => { const ctx = await harness() - const handle = ctx.agents.create({ agentId: AgentId('a1'), sessionId: SessionId('s1'), agentOptions: { model: 'mock' } }) + const handle = await ctx.agents.create({ agentId: AgentId('a1'), sessionId: SessionId('s1'), agentOptions: { model: 'mock' } }) const { agent } = handle agent.ctx.systemPrompt.section({ name: 'deployment:persona', order: 0, text: 'You run tests.' }) agent.ctx.tools.register({ @@ -104,12 +105,13 @@ describe('agent scope lifecycle', () => { }) }) - const handle = ctx.agents.create({ + const handle = await ctx.agents.create({ agentId: AgentId('child'), sessionId: SessionId('child-s'), agentOptions: { model: 'mock' }, - setup: (agentCtx) => { + setup: async (agentCtx) => { order.push('setup') + await Promise.resolve() agentCtx.systemPrompt.section({ name: 'deployment:persona', order: 0, text: 'You are the child.' }) }, }) @@ -118,42 +120,233 @@ describe('agent scope lifecycle', () => { await handle.dispose() }) - it('a throwing setup unwinds the half-created agent completely', async () => { + it('keeps both identities unpublished until async setup completes, then announces in order', async () => { const ctx = await harness() - expect(() => ctx.agents.create({ + const gate = Promise.withResolvers() + const setupStarted = Promise.withResolvers() + const order: string[] = [] + ctx.on('session/created', (session) => { + expect(ctx.sessions.get(session.id)).toBe(session) + expect(ctx.agents.get(AgentId('atomic'))?.session).toBe(session) + order.push('session/created') + }) + ctx.on('agent/created', () => void order.push('agent/created')) + ctx.on('agent/session-start', () => void order.push('agent/session-start')) + const acceptedOptions = { model: 'mock' } + + const creating = ctx.agents.create({ + agentId: AgentId('atomic'), + sessionId: SessionId('atomic-s'), + agentOptions: acceptedOptions, + setup: async (agentCtx) => { + expect(agentCtx.agent?.id).toBe(AgentId('atomic')) + agentCtx.on('session/created', () => void order.push('setup-listener:session/created')) + agentCtx.on('agent/created', () => void order.push('setup-listener:agent/created')) + order.push('setup:start') + setupStarted.resolve(undefined) + await gate.promise + order.push('setup:end') + }, + }) + await setupStarted.promise + expect(ctx.agents.get(AgentId('atomic'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('atomic-s'))).toBeUndefined() + expect(order).toEqual(['setup:start']) + acceptedOptions.model = 'mutated while setup was pending' + + gate.resolve(undefined) + const handle = await creating + expect(handle.agent.options.model).toBe('mock') + expect(order).toEqual([ + 'setup:start', + 'setup:end', + 'session/created', + 'setup-listener:session/created', + 'agent/created', + 'setup-listener:agent/created', + 'agent/session-start', + ]) + await handle.dispose() + }) + + it('reserves agent and session ids across concurrent async setup', async () => { + const ctx = await harness() + const gate = Promise.withResolvers() + const first = ctx.agents.create({ + agentId: AgentId('reserved'), + sessionId: SessionId('reserved-s'), + agentOptions: { model: 'mock' }, + setup: () => gate.promise, + }) + + await expect(ctx.agents.create({ + agentId: AgentId('reserved'), + sessionId: SessionId('other-s'), + agentOptions: { model: 'mock' }, + })).rejects.toThrow(/already registered/) + await expect(ctx.agents.create({ + agentId: AgentId('other'), + sessionId: SessionId('reserved-s'), + agentOptions: { model: 'mock' }, + })).rejects.toThrow(/already exists/) + expect(ctx.agents.list()).toEqual([]) + expect(ctx.sessions.list()).toEqual([]) + + gate.resolve(undefined) + const handle = await first + await handle.dispose() + }) + + it('structurally rejects every driving verb during setup', async () => { + const ctx = await harness() + const handle = await ctx.agents.create({ + agentId: AgentId('no-drive'), + sessionId: SessionId('no-drive-s'), + agentOptions: { model: 'mock' }, + setup: (agentCtx) => { + const agent = agentCtx.agent! + // Even JavaScript or a cast to the exported concrete class cannot name + // a public start method. Driver startup is behind a module-private + // symbol used only by AgentLoop after rollback-covered publication. + expect(Reflect.get(agent as ReactLoopAgent, 'start')).toBeUndefined() + expect(Reflect.get(concreteAgentModule, 'enableAgentDrive')).toBeUndefined() + expect(Reflect.get(concreteAgentModule, 'startAgentDriver')).toBeUndefined() + expect(() => concreteAgentModule.prepareReactLoopAgent( + agentCtx, agent.id, agent.options, agent.session, + )).toThrow(/already has a concrete agent driver/) + expect(Reflect.get(agent as ReactLoopAgent, 'inbox')).toBeUndefined() + expect(() => { agent.send(text('queued too soon')) }).toThrow(/cannot send before creation setup completes/) + expect(() => { agent.steer(text('steered too soon')) }).toThrow(/cannot steer before creation setup completes/) + expect(() => { agent.inject(text('injected too soon')) }).toThrow(/cannot inject before creation setup completes/) + expect(() => { agent.cancel('cancel too soon') }).toThrow(/cannot cancel before creation setup completes/) + expect(agent.session.events).toEqual([]) + }, + }) + expect(handle.agent.session.events).toEqual([]) + await handle.dispose() + }) + + it('owner unload aborts a pending setup and publishes nothing', async () => { + const ctx = await harness() + const gate = Promise.withResolvers() + const setupStarted = Promise.withResolvers() + const published: string[] = [] + ctx.on('session/created', () => void published.push('session/created')) + ctx.on('agent/created', () => void published.push('agent/created')) + + let creating!: ReturnType + const owner = await ctx.plugin(Object.assign((inner: Context) => { + creating = inner.agents.create({ + agentId: AgentId('owner-race'), + sessionId: SessionId('owner-race-s'), + agentOptions: { model: 'mock' }, + setup: async () => { + setupStarted.resolve(undefined) + await gate.promise + }, + }) + }, { inject: ['agents'] })) + await setupStarted.promise + + await owner.dispose() + await expect(creating).rejects.toThrow(/owner disposed during setup/) + expect(published).toEqual([]) + expect(ctx.agents.get(AgentId('owner-race'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('owner-race-s'))).toBeUndefined() + // Let the losing callback settle; Promise.race already observes it. + gate.resolve(undefined) + await Promise.resolve() + + // The other ordering in the same race: setup resolves first (its reaction + // is queued), then owner disposal flips active before that continuation can + // publish. The post-race active check must still reject. + const gate2 = Promise.withResolvers() + const setupStarted2 = Promise.withResolvers() + let creating2!: ReturnType + const owner2 = await ctx.plugin(Object.assign((inner: Context) => { + creating2 = inner.agents.create({ + agentId: AgentId('owner-race-2'), + sessionId: SessionId('owner-race-s-2'), + agentOptions: { model: 'mock' }, + setup: async () => { + setupStarted2.resolve(undefined) + await gate2.promise + }, + }) + }, { inject: ['agents'] })) + await setupStarted2.promise + gate2.resolve(undefined) + const unload2 = owner2.dispose() + await expect(creating2).rejects.toThrow(/owner disposed during setup/) + await unload2 + expect(ctx.agents.get(AgentId('owner-race-2'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('owner-race-s-2'))).toBeUndefined() + }) + + it('a rejecting setup publishes nothing and unwinds the unpublished scope', async () => { + const ctx = await harness() + const published: string[] = [] + ctx.on('session/created', () => void published.push('session/created')) + ctx.on('agent/created', () => void published.push('agent/created')) + ctx.on('agent/session-start', () => void published.push('agent/session-start')) + await expect(ctx.agents.create({ agentId: AgentId('bad'), sessionId: SessionId('bad-s'), agentOptions: { model: 'mock' }, - setup: () => { throw new Error('boom setup') }, - })).toThrow('boom setup') + setup: async () => { + await Promise.resolve() + throw new Error('boom setup') + }, + })).rejects.toThrow('boom setup') // Nothing leaked: no agent, no session, and the ids are reusable. + expect(published).toEqual([]) expect(ctx.agents.get(AgentId('bad'))).toBeUndefined() expect(ctx.sessions.get(SessionId('bad-s'))).toBeUndefined() - const retry = ctx.agents.create({ agentId: AgentId('bad'), sessionId: SessionId('bad-s'), agentOptions: { model: 'mock' } }) + const retry = await ctx.agents.create({ agentId: AgentId('bad'), sessionId: SessionId('bad-s'), agentOptions: { model: 'mock' } }) await retry.dispose() }) it('a throwing session/created listener disposes the scope (pre-nesting rollback window)', async () => { const ctx = await harness() let boom = true + const disposed: string[] = [] + ctx.on('agent/disposed', agent => void disposed.push(agent.id)) ctx.on('session/created', () => { if (boom) { boom = false; throw new Error('boom created') } }) - expect(() => ctx.agents.create({ + await expect(ctx.agents.create({ agentId: AgentId('bad'), sessionId: SessionId('bad-s'), agentOptions: { model: 'mock' }, - })).toThrow('boom created') + })).rejects.toThrow('boom created') expect(ctx.agents.get(AgentId('bad'))).toBeUndefined() expect(ctx.sessions.get(SessionId('bad-s'))).toBeUndefined() + expect(disposed).toEqual([]) // inserted but never announced: no impossible disposed edge // The rollback also disposed the scope fiber: re-creating works cleanly. - const retry = ctx.agents.create({ agentId: AgentId('bad'), sessionId: SessionId('bad-s'), agentOptions: { model: 'mock' } }) + const retry = await ctx.agents.create({ agentId: AgentId('bad'), sessionId: SessionId('bad-s'), agentOptions: { model: 'mock' } }) expect(scopeOf(retry.agent.ctx)).toBe(retry.agent) await retry.dispose() }) + it('the synchronous config helper rolls back when publication throws', async () => { + const ctx = await harness() + const sessionsBefore = ctx.sessions.list().length + let boom = true + ctx.on('session/created', () => { + if (boom) { + boom = false + throw new Error('config publish failed') + } + }) + + expect(() => ctx.agentLoop.create(AgentId('config-bad'), { model: 'mock' })) + .toThrow('config publish failed') + expect(ctx.agents.get(AgentId('config-bad'))).toBeUndefined() + expect(ctx.sessions.list()).toHaveLength(sessionsBefore) + }) + it('registrations through a disposed agent ctx throw INACTIVE_EFFECT', async () => { const ctx = await harness() - const handle = ctx.agents.create({ agentId: AgentId('a1'), sessionId: SessionId('s1'), agentOptions: { model: 'mock' } }) + const handle = await ctx.agents.create({ agentId: AgentId('a1'), sessionId: SessionId('s1'), agentOptions: { model: 'mock' } }) await handle.dispose() expect(() => handle.agent.ctx.on('agent/status', () => {})).toThrow(/inactive context/) }) @@ -195,9 +388,9 @@ describe('agent scope lifecycle', () => { it('owner unload honors the documented teardown order: unregistration AFTER the drain, before detach', async () => { const ctx = await harness() - let handle!: ReturnType - const owner = await ctx.plugin(Object.assign((inner: Context) => { - handle = inner.agents.create({ agentId: AgentId('o1'), sessionId: SessionId('o1-s'), agentOptions: { model: 'mock' } }) + let handle!: Awaited> + const owner = await ctx.plugin(Object.assign(async (inner: Context) => { + handle = await inner.agents.create({ agentId: AgentId('o1'), sessionId: SessionId('o1-s'), agentOptions: { model: 'mock' } }) }, { inject: ['agents'] })) const { agent } = handle @@ -229,9 +422,9 @@ describe('agent scope lifecycle', () => { it('handle.dispose() during owner unload still awaits true quiescence (shared boundary)', async () => { const ctx = await harness() - let handle!: ReturnType - const owner = await ctx.plugin(Object.assign((inner: Context) => { - handle = inner.agents.create({ agentId: AgentId('h1'), sessionId: SessionId('h1-s'), agentOptions: { model: 'mock' } }) + let handle!: Awaited> + const owner = await ctx.plugin(Object.assign(async (inner: Context) => { + handle = await inner.agents.create({ agentId: AgentId('h1'), sessionId: SessionId('h1-s'), agentOptions: { model: 'mock' } }) }, { inject: ['agents'] })) const teardownDone: string[] = [] diff --git a/packages/core/agent-loop/tests/turn-stop.spec.ts b/packages/core/agent-loop/tests/turn-stop.spec.ts new file mode 100644 index 0000000000..c4ead42040 --- /dev/null +++ b/packages/core/agent-loop/tests/turn-stop.spec.ts @@ -0,0 +1,199 @@ +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import LlmService from '@deepseek-ai/dsh-llm' +import SessionStore, { type TurnEndReason } from '@deepseek-ai/dsh-session' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry, { defineTool } from '@deepseek-ai/dsh-tools' +import AgentRegistry, { AgentId, type ContinuationStop } from '@deepseek-ai/dsh-agent' +import AgentLoop, { type ReactLoopAgent } from '@deepseek-ai/dsh-agent-loop' +import * as Invariants from '@deepseek-ai/dsh-invariants' +import { MockAdapter, textResponse, toolCallResponse } from './mock-adapter.ts' + +async function harness(adapter: MockAdapter): Promise { + const ctx = new Context() + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(Invariants) + await ctx.plugin(AgentLoop, { agents: [] }) + ctx.llm.registerAdapter(['mock'], adapter) + return ctx +} + +function send(agent: ReactLoopAgent, text = 'go'): Promise { + agent.send([{ type: 'text', text }]) + return agent.whenIdle() +} + +function registerEcho(ctx: Context): void { + ctx.tools.register(defineTool({ + name: 'echo', + description: 'echo', + parameters: { text: { type: 'string' } }, + async execute(args) { + return [{ type: 'text', text: String(args.text) }] + }, + })) +} + +describe('agent/turn-stop', () => { + it('runs after steering folding and discards terminal steering instead of creating another step or turn', async () => { + const adapter = new MockAdapter([ + textResponse('the ordinary decision is stop'), + textResponse('must not be requested'), + ]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('terminal-steering'), { model: 'mock' }) + agent.ctx.on('agent/turn-stop', (): ContinuationStop => ({ action: 'stop' })) + + let steered = false + ctx.on('agent/turn-continuation', async (subject, _turn, _default, next) => { + const downstream = await next() + if (subject === agent && !steered) { + steered = true + subject.steer([{ type: 'text', text: 'late continuation steering' }]) + } + return downstream + }, { prepend: true }) + + await send(agent) + + expect(adapter.requests).toHaveLength(1) + expect(agent.session.events.filter(event => event.type === 'turn/start')).toHaveLength(1) + expect(agent.session.events.filter(event => event.type === 'step/start')).toHaveLength(1) + expect(agent.session.events.filter(event => event.type === 'steering/message')).toHaveLength(0) + }) + + it('discards steering that arrives from session/flush after the terminal checkpoint', async () => { + const adapter = new MockAdapter([ + textResponse('terminal answer'), + textResponse('must not become a late-steering turn'), + ]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('terminal-flush-steering'), { model: 'mock' }) + agent.ctx.on('agent/turn-stop', (): ContinuationStop => ({ action: 'stop' })) + + let injected = false + ctx.on('session/flush', (session) => { + if (session !== agent.session || injected) return + injected = true + agent.steer([{ type: 'text', text: 'steering from flush' }]) + }) + + await send(agent) + + expect(injected).toBe(true) + expect(agent.status).toBe('idle') + expect(adapter.requests).toHaveLength(1) + expect(agent.session.events.filter(event => event.type === 'turn/start')).toHaveLength(1) + expect(agent.session.events.filter(event => event.type === 'step/start')).toHaveLength(1) + expect(agent.session.events.filter(event => event.type === 'steering/message')).toHaveLength(0) + }) + + it('preserves an ordinary queued send that arrives during terminal flush', async () => { + const adapter = new MockAdapter([ + textResponse('first terminal answer'), + textResponse('queued follow-up answer'), + ]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('terminal-flush-send'), { model: 'mock' }) + agent.ctx.on('agent/turn-stop', (): ContinuationStop => ({ action: 'stop' })) + + let queued = false + ctx.on('session/flush', (session) => { + if (session !== agent.session || queued) return + queued = true + agent.send([{ type: 'text', text: 'ordinary queued follow-up' }]) + }) + + await send(agent) + + expect(agent.status).toBe('idle') + expect(adapter.requests).toHaveLength(2) + expect(agent.session.events.filter(event => event.type === 'turn/start')).toHaveLength(2) + expect(agent.session.events.filter(event => event.type === 'step/start')).toHaveLength(2) + }) + + it('filters a scoped terminal listener to its own agent', async () => { + const adapter = new MockAdapter([ + toolCallResponse('a1', 'echo', { text: 'a' }), + toolCallResponse('b1', 'echo', { text: 'b' }), + textResponse('b continues normally'), + ]) + const ctx = await harness(adapter) + registerEcho(ctx) + const stopped = ctx.agentLoop.create(AgentId('stopped'), { model: 'mock' }) + const ordinary = ctx.agentLoop.create(AgentId('ordinary'), { model: 'mock' }) + stopped.ctx.on('agent/turn-stop', (): ContinuationStop => ({ action: 'stop' })) + + await send(stopped) + expect(adapter.requests).toHaveLength(1) + await send(ordinary) + + expect(adapter.requests).toHaveLength(3) + expect(stopped.session.events.filter(event => event.type === 'step/start')).toHaveLength(1) + expect(ordinary.session.events.filter(event => event.type === 'step/start')).toHaveLength(2) + }) + + it('unregisters with its scoped owner disposer', async () => { + const adapter = new MockAdapter([ + toolCallResponse('first', 'echo', { text: 'first' }), + toolCallResponse('second', 'echo', { text: 'second' }), + textResponse('continued after listener disposal'), + ]) + const ctx = await harness(adapter) + registerEcho(ctx) + const agent = ctx.agentLoop.create(AgentId('owned-listener'), { model: 'mock' }) + const disposeStop = agent.ctx.on('agent/turn-stop', (): ContinuationStop => ({ action: 'stop' })) + + await send(agent, 'first turn') + expect(adapter.requests).toHaveLength(1) + + disposeStop() + await send(agent, 'second turn') + expect(adapter.requests).toHaveLength(3) + }) + + it('fails throwing and malformed terminal policies closed while the driver survives', async () => { + const adapter = new MockAdapter([ + textResponse('throwing policy'), + textResponse('malformed continue policy'), + textResponse('malformed false policy'), + textResponse('malformed null policy'), + textResponse('healthy later turn'), + ]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('bad-policy'), { model: 'mock' }) + const reasons: TurnEndReason[] = [] + const errors: string[] = [] + ctx.on('session/event', (session, event) => { + if (session === agent.session && event.type === 'turn/end') reasons.push(event.data.reason) + }) + agent.ctx.on('agent/error', (_subject, _turn, _step, error) => { errors.push(error.message) }) + + const disposeThrowing = agent.ctx.on('agent/turn-stop', () => { + throw new Error('terminal policy exploded') + }) + await send(agent, 'first') + disposeThrowing() + + for (const [index, malformed] of [ + { action: 'continue' }, + false, + null, + ].entries()) { + const disposeMalformed = agent.ctx.on('agent/turn-stop', () => malformed as unknown as ContinuationStop) + await send(agent, `malformed ${index}`) + disposeMalformed() + } + + await send(agent, 'healthy') + + expect(reasons.map(reason => reason.kind)).toEqual(['error', 'error', 'error', 'error', 'completed']) + expect(errors).toContain('terminal policy exploded') + expect(errors).toContain("agent/turn-stop returned an invalid result; expected { action: 'stop' } or undefined") + expect(adapter.requests).toHaveLength(5) + }) +}) diff --git a/packages/core/agent/src/dispatch.ts b/packages/core/agent/src/dispatch.ts index bed4981135..b02dfeab57 100644 --- a/packages/core/agent/src/dispatch.ts +++ b/packages/core/agent/src/dispatch.ts @@ -57,6 +57,16 @@ export interface AgentEventDispatch { * @returns the serial chain's result (the first bail value, if any). */ serial(name: K, ...rest: Tail): Promise>> + /** + * Await listeners in order and return the first value other than `undefined`. + * Unlike Cordis `serial`, this does not silently treat `null` or `false` as + * abstentions. Use it for a runtime-validated public boundary whose declared + * abstention is exactly `undefined` (currently `agent/turn-stop`). + * @param name - the agent-subject event to dispatch. + * @param rest - the event's arguments after the injected agent. + * @returns the first non-undefined listener result, or undefined. + */ + strictSerial(name: K, ...rest: Tail): Promise>> /** * Around-middleware dispatch (Cordis `waterfall`) in the agent's scope. The * declared event parameters already end with the `next` callback, so `rest` @@ -79,7 +89,7 @@ export interface AgentEventDispatch { */ export function agentEvents(ctx: Context, agent: Agent): AgentEventDispatch { const carrier: Scoped = scopeTarget(agent, agent) - // The three dispatch methods forward through cordis' variadic mixins. The + // The ordinary dispatch methods forward through Cordis' variadic mixins. The // fused (carrier, name, agent, ...rest) tuple is provably a valid argument // list for the matching thisArg overload, but TypeScript cannot relate the // generic Tail spread back to that overload's conditional parameter @@ -95,6 +105,22 @@ export function agentEvents(ctx: Context, agent: Agent): AgentEventDispatch { const serial = ctx.serial as (thisArg: Scoped, name: string, ...args: unknown[]) => Promise return await serial(carrier, name, agent, ...rest) }, + strictSerial(name, ...rest) { + return (async (): Promise => { + // EventsService.dispatch applies the carrier filter and emits the same + // internal/dispatch instrumentation as ctx.serial, then mutates `args` + // down to the actual listener parameters. Invoke those callbacks in order + // ourselves so every non-undefined value reaches the caller's validator; + // Cordis serial would discard null/false before validation could see them. + const args: unknown[] = [carrier, name, agent, ...rest] + const callbacks = ctx.events.dispatch('serial', args) + for (const callback of callbacks) { + const result: unknown = await callback(...args) + if (result !== undefined) return result + } + return undefined + })() as Promise>> + }, waterfall(name, ...rest) { // eslint-disable-next-line @typescript-eslint/unbound-method -- the events mixin accessor returns a pre-bound function const waterfall = ctx.waterfall as (thisArg: Scoped, name: string, ...args: unknown[]) => never diff --git a/packages/core/agent/src/index.ts b/packages/core/agent/src/index.ts index 588a3c8ee1..5bd3dd80d7 100644 --- a/packages/core/agent/src/index.ts +++ b/packages/core/agent/src/index.ts @@ -18,14 +18,13 @@ declare module 'cordis' { interface Context { agents: AgentRegistry /** - * The agent whose scope this context belongs to, or `undefined` on any - * context not derived from an agent scope. Pure DX sugar over the - * `dsh-scope` tag: the agent loop sets it as an own property on each - * `Agent.ctx`, and {@link AgentRegistry} registers a root accessor - * defaulting to `undefined` so the read is safe on every context (a plain - * plugin context answers `undefined` instead of throwing the Cordis - * unknown-property error). Core packages below the agent layer read the - * `dsh-scope` tag (`scopeOf`) instead, never this field. + * The agent association installed as an own property on `Agent.ctx`, or + * `undefined` on a plain context. Contexts derived from `Agent.ctx` inherit + * the association; a deliberately nested scope may carry a nearer + * `dsh-scope` tag while retaining it, so this field is DX context rather + * than the scope resolver. {@link AgentRegistry} registers a root accessor + * defaulting to `undefined`, and core packages below the agent layer use + * `scopeOf()` for layer selection instead of reading this field. */ agent?: Agent } @@ -66,19 +65,20 @@ export interface CreateAgentOptions { /** Per-agent options (model, …). */ agentOptions?: AgentOptions /** - * Creation-time composition of the agent's scoped world. The factory runs it - * inside the agent's composite lifecycle effect — after the scope is minted - * and the agent registered, before `agent/session-start` fires and the loop - * starts — so everything it registers through `agentCtx` (scoped tools, - * prompt sections/variables, `restrict()`, listeners, `agentCtx.plugin(…)` - * profiles) exists before the first prompt assembly, and a THROWING setup - * unwinds inside the rollback boundary instead of leaking a half-created - * agent. **Setup registers, it never drives**: calling - * `send`/`steer`/`inject` here would open a turn before `agent/session-start` - * (the dev invariants flag a `turn/start` logged before session-start as a - * teaching error) — drive the agent after creation returns. + * Creation-time composition of the agent's scoped world. The factory awaits + * setup after minting `agentCtx` but BEFORE inserting or announcing either + * the session or agent, so observers can never see a partially configured + * world. Everything registered through `agentCtx` (scoped tools, prompt + * sections/variables, `restrict()`, listeners, awaited child plugins) exists + * before `session/created`, `agent/created`, `agent/session-start`, and the + * first prompt assembly. A throw/rejection or owner disposal rolls the scope + * back without publishing either id. + * + * **Setup composes, it never drives**: calling `send`/`steer`/`inject` here + * would run an unpublished agent and violate the session-start boundary. + * Drive the agent only after the creation promise resolves. */ - setup?: (agentCtx: Context) => void + setup?: (agentCtx: Context) => Promise | void } /** @@ -92,15 +92,26 @@ export interface ResumeAgentOptions { resumeSessionId: SessionId /** Per-agent options (model, …). */ agentOptions?: AgentOptions + /** + * Resume-time composition of the agent's fresh scoped world. Persistence is + * loaded first; the factory then mints `agentCtx` and awaits setup while the + * reconstructed session and agent remain unpublished. The callback has the + * same composition-only contract as {@link CreateAgentOptions.setup}: all + * registrations exist before either creation announcement, driving verbs are + * unavailable until the session-start boundary, and rejection or owner + * disposal rolls the transaction back without publishing either id. + */ + setup?: (agentCtx: Context) => Promise | void } /** * An owned agent plus its disposer, returned by {@link AgentRegistry.create} / * {@link AgentRegistry.resume}. The disposer is a CAPABILITY: only the holder - * can tear this agent down. `dispose()` unregisters the agent, stops its loop, - * awaits the loop's exit (quiescence — NOT just the `disposed` status flip), and - * removes the agent's session from the store, in an order that captures the - * loop's final `session/flush` before the session is detached. + * can tear this agent down. `dispose()` stops the loop, awaits its exit + * (quiescence — NOT just the `disposed` status flip), unregisters the agent, + * removes its session from the store, and finally unwinds its scoped world. + * This order captures the loop's final `session/flush` before the session is + * detached and keeps scoped listeners alive through that flush. * * `ctx.agents.get(id)` still returns a bare {@link Agent} — the handle is only * for the OWNER that created it. Config-created agents (the loop's own startup) @@ -119,15 +130,27 @@ export interface AgentHandle { */ export interface AgentFactory { /** - * Create, start, and register a new agent on a caller-supplied session id. - * Returns an {@link AgentHandle} — the owner disposes it to tear down exactly - * this agent (unregister + stop loop + await quiescence + remove session). + * Create a new agent on a caller-supplied session id. Async because creation + * awaits unpublished setup, inserts both session and agent, emits their + * creation notifications in order, unlocks driving at + * `agent/session-start`, and only then starts the loop. The sequence is + * rollback-covered, but notifications delivered before a later listener + * failure remain observable; if agent announcement began, rollback emits + * `agent/disposed`, while the session entry is removed without a separate + * disposal event. The owner disposes the resolved handle to stop/drain, + * unregister, remove the session, and unwind the scope. + * @param options - agent/session identity, configuration, and optional setup. + * @returns the owned handle after setup, both announcements, and loop start complete. */ - createAgent(options: CreateAgentOptions): AgentHandle + createAgent(options: CreateAgentOptions): Promise /** * Load a persisted session and resume an agent on it. Async because it awaits - * `ctx.sessionPersistence.load`; must be called after that service exists - * (consumers inject `sessionPersistence`). Returns an {@link AgentHandle}. + * both `ctx.sessionPersistence.load` and the optional unpublished setup + * transaction; must be called after that service exists (consumers inject + * `sessionPersistence`). Publication and drive unlocking follow the same + * ordered boundary as {@link createAgent}. + * @param options - persisted identity, configuration, and optional setup. + * @returns the owned handle after setup, both announcements, and loop start complete. */ resume(options: ResumeAgentOptions): Promise } @@ -139,11 +162,13 @@ const NO_FACTORY_MESSAGE = 'no agent factory registered (load an agent-loop plug * Agent registry (`ctx.agents`): tracks live agents so UI, hook, and * orchestrator plugins can find them without depending on the concrete loop * package. Agent *creation* is provided by whichever plugin implements the - * {@link AgentFactory} (phase 1: `@deepseek-ai/dsh-agent-loop`), registered via + * {@link AgentFactory} (`@deepseek-ai/dsh-agent-loop`), registered via * {@link setFactory}. */ export class AgentRegistry extends Service { private store = new Map() + /** Entries whose `agent/created` announcement phase began. */ + private announced = new WeakSet() private factory: AgentFactory | undefined constructor(ctx: Context) { @@ -180,15 +205,15 @@ export class AgentRegistry extends Service { } /** - * Create, start, and register a new agent through the registered factory. + * Create and publish a new agent through the registered factory. * Distinct from {@link register} (which records an already-constructed - * agent): this constructs the agent and its session. Throws if no factory is - * registered. Returns an {@link AgentHandle} — the owner disposes it to tear - * down exactly this agent. + * agent): this constructs the agent and its session. Rejects if no factory is + * registered or creation/setup fails. The resolved {@link AgentHandle} lets + * the owner tear down exactly this agent. * @param options - agent id, session id/seed/metadata, and agent options. - * @returns the handle whose dispose tears down exactly this agent. + * @returns the handle after setup, rollback-covered publication, and loop start complete. */ - create(options: CreateAgentOptions): AgentHandle { + async create(options: CreateAgentOptions): Promise { if (this.factory === undefined) throw new Error(NO_FACTORY_MESSAGE) return this.factory.createAgent(options) } @@ -196,9 +221,9 @@ export class AgentRegistry extends Service { /** * Load a persisted session and resume an agent on it through the registered * factory. Rejects if no factory is registered; the factory rejects if - * session persistence is not configured. Returns an {@link AgentHandle}. - * @param options - the persisted session id plus agent id and options. - * @returns the handle for the resumed agent. + * session persistence is not configured or persistence/setup fails. + * @param options - persisted identity, configuration, and optional setup. + * @returns the handle after setup, rollback-covered publication, and loop start complete. */ async resume(options: ResumeAgentOptions): Promise { if (this.factory === undefined) throw new Error(NO_FACTORY_MESSAGE) @@ -225,39 +250,58 @@ export class AgentRegistry extends Service { */ register(agent: Agent): () => Promise | void { const dispose = this.ctx.effect(function* (this: AgentRegistry) { - if (this.store.has(agent.id)) { - throw new Error(`agent "${agent.id}" is already registered`) - } - this.store.set(agent.id, agent) - // Yield the rollback BEFORE emitting `agent/created`: a generator effect - // collects each yielded disposer before the next step runs, so a - // throwing `agent/created` listener rolls the entry back instead of - // leaking it (a leak would wedge the duplicate-id check until restart). - // The duplicate throw above fires before any mutation — it leaks nothing. - yield () => { - this.store.delete(agent.id) - // CONTAIN a throwing `agent/disposed` listener: this disposer runs as - // one link in the owning fiber/effect's disposal chain, and Cordis - // chains later disposers with `task.then(next)` — so an UNCAUGHT throw - // here rejects the chain and SKIPS every later disposer. When this - // registration shares a composite effect with a session (the agent - // factory's `AgentLoop.start`, where the session-detach disposer runs - // AFTER this one), a swallowed-less throw would strand the session in - // the store with `onAppend` attached — a leak AND a durability hole. - // The store entry is already removed above (the useful state), so - // logging the listener bug and continuing is correct (mirrors the - // guarded `agent/status` emit in dsh-agent-loop's ReactLoopAgent). - try { - this.ctx.emit(scopeTarget(agent, agent), 'agent/disposed', agent) - } catch (error: unknown) { - this.ctx.logger.warn(`agent "${agent.id}": agent/disposed listener threw: ${String(error)}`) - } - } - this.ctx.emit(scopeTarget(agent, agent), 'agent/created', agent) + yield this.enter(agent) + this.announce(agent) }.bind(this), 'agents.register()') return dispose } + /** + * Insert an already-constructed agent without announcing it. This is the + * advanced ordered-lifecycle primitive used by the async agent factory: it + * first completes setup while the agent is unpublished, then assigns the + * returned detach closure into its pre-installed composite teardown before + * calling {@link announce}. Ordinary callers use {@link register}. + * @param agent - the prepared, unpublished agent. + * @returns an idempotent closure that removes this exact entry and emits + * `agent/disposed` with listener failures contained. + */ + enter(agent: Agent): () => void { + if (this.store.has(agent.id)) { + throw new Error(`agent "${agent.id}" is already registered`) + } + this.store.set(agent.id, agent) + let entered = true + return () => { + if (!entered) return + entered = false + this.store.delete(agent.id) + // An insertion rolled back before announce was never externally created, + // so emitting disposed would invent an impossible lifecycle edge. Marking + // happens before the created emit: if a later created listener throws, + // earlier listeners may already have observed it and must see disposal. + if (!this.announced.delete(agent)) return + try { + this.ctx.emit(scopeTarget(agent, agent), 'agent/disposed', agent) + } catch (error: unknown) { + this.ctx.logger.warn(`agent "${agent.id}": agent/disposed listener threw: ${String(error)}`) + } + } + } + + /** + * Announce an agent previously inserted with {@link enter}. + * @param agent - the live inserted agent to announce. + * @throws if `agent` is not the exact live registry entry for its id. + */ + announce(agent: Agent): void { + if (this.store.get(agent.id) !== agent) { + throw new Error(`agent "${agent.id}" is not live in this registry`) + } + this.announced.add(agent) + this.ctx.emit(scopeTarget(agent, agent), 'agent/created', agent) + } + /** * Look up a live agent. * @param id - the agent id to look up. diff --git a/packages/core/agent/src/types.ts b/packages/core/agent/src/types.ts index a0ef52e735..1017a2df46 100644 --- a/packages/core/agent/src/types.ts +++ b/packages/core/agent/src/types.ts @@ -18,8 +18,8 @@ * - **`agent/*`** (this module) — the LIVE runtime surface. Always carries the * live `Agent`. Two shapes: INTERCEPTION seams (the `agent/prompt-submit`/ * `agent/request`/`agent/session-prefix`/`agent/step-result`/ - * `agent/turn-continuation` waterfalls and - * the serial `agent/pre-step`) that mutate/veto, and TRANSIENT emits + * `agent/turn-continuation` waterfalls and the serial `agent/pre-step` / + * `agent/turn-stop` checkpoints) that mutate/veto, and TRANSIENT emits * (`agent/status`, `agent/error`, `agent/created`/ * `agent/disposed`, `agent/queued`, `agent/session-start`) * that notify with the `Agent` in hand. Turn/step boundaries are NOT here — @@ -37,8 +37,9 @@ * and `docs/rfc/implemented/simplification/2026-06-20-remove-agent-boundary-mirror-events.md`. * * The interception waterfalls here (`agent/prompt-submit`, `agent/request`, - * `agent/step-result`, `agent/turn-continuation`) each return a typed Decision — - * the convention pinned by + * `agent/step-result`, `agent/turn-continuation`) each return a typed Decision; + * the terminal serial `agent/turn-stop` returns the stop-only subset. The + * convention is pinned by * `docs/rfc/implemented/feature/2026-06-30-interception-seams.md`. * * @module @deepseek-ai/dsh-agent/types @@ -161,6 +162,13 @@ export type ContinuationDecision = | { action: 'stop' } | { action: 'continue'; reason?: HookContext } +/** + * The terminal subset of {@link ContinuationDecision}. A listener on + * `agent/turn-stop` returns this to make the already-composed continuation + * outcome terminal; `undefined` abstains. + */ +export type ContinuationStop = Extract + /** * Why an agent's session lifecycle began, carried by `agent/session-start`. A * bridge keys its SessionStart hook's matcher on this (Claude Code's @@ -274,9 +282,12 @@ declare module 'cordis' { interface Events { // ---- lifecycle (emit) ---- /** - * An agent was registered in the {@link AgentRegistry} and is ready to - * receive messages. - * @param agent - the newly registered agent, already resolvable in the registry. + * An agent's fully composed scoped world was published in the + * {@link AgentRegistry}. Its session is already live in the session store, + * but concrete factories may keep driving verbs locked until the subsequent + * `agent/session-start` boundary; that event is the first supported place + * to inject or queue work during startup. + * @param agent - the newly registered agent with its live session and completed setup. * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered * through `agent.ctx` fires only for that agent's dispatches; a listener on a * plain plugin context fires for every agent. The dispatch `this` is the @@ -286,9 +297,11 @@ declare module 'cordis' { */ 'agent/created'(this: Scoped, agent: Agent): void /** - * An agent was disposed and removed from the registry; its fiber and any - * in-flight turn have been torn down. - * @param agent - the agent that was torn down; its handle is now inert. + * An agent was removed from the registry after its driver and any in-flight + * turn reached quiescence. Ordered teardown may still be detaching the + * session and unwinding the agent's scoped registrations when this + * notification runs. + * @param agent - the deregistered agent; its driving handle is now inert. * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered * through `agent.ctx` fires only for that agent's dispatches; a listener on a * plain plugin context fires for every agent. The dispatch `this` is the @@ -534,6 +547,25 @@ declare module 'cordis' { * @mode waterfall */ 'agent/turn-continuation'(this: Scoped, agent: Agent, turn: number, defaultDecision: ContinuationDecision, next: () => Promise): Promise + /** + * Serial terminal-stop checkpoint after the ordinary + * `agent/turn-continuation` waterfall, any `continue.reason`, and the + * pending-steering continuation override have been folded. A listener + * returns `{ action: 'stop' }` to make this turn terminal, or `undefined` + * to abstain. Terminal stop is monotonic: listener order and steering + * cannot resume the turn, and pending steering is discarded rather than + * becoming another step or turn. A malformed non-undefined result fails + * the turn closed. + * @param agent - the agent whose composed continuation outcome may be stopped. + * @param turn - the turn at its terminal-stop checkpoint. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered + * through `agent.ctx` fires only for that agent's dispatches; a listener on a + * plain plugin context fires for every agent. The dispatch `this` is the + * scope carrier (`Scoped`), built by the emitting side via + * `scopeTarget`/`agentEvents`. + * @mode serial + */ + 'agent/turn-stop'(this: Scoped, agent: Agent, turn: number): Promise | ContinuationStop | undefined // ---- error notifications (emit) ---- /** diff --git a/packages/core/agent/tests/agent.spec.ts b/packages/core/agent/tests/agent.spec.ts index 08623549ec..4e89dc0e84 100644 --- a/packages/core/agent/tests/agent.spec.ts +++ b/packages/core/agent/tests/agent.spec.ts @@ -77,6 +77,36 @@ describe('AgentRegistry', () => { await dispose() expect(ctx.agents.get(AgentId('main'))).toBeUndefined() }) + + it('splits insertion from announcement and makes the detach exact/idempotent', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + const created: Agent[] = [] + const disposed: Agent[] = [] + ctx.on('agent/created', agent => void created.push(agent)) + ctx.on('agent/disposed', agent => void disposed.push(agent)) + + const first = stubAgent('split') + const detachFirst = ctx.agents.enter(first) + expect(ctx.agents.get(first.id)).toBe(first) + expect(created).toEqual([]) + ctx.agents.announce(first) + expect(created).toEqual([first]) + detachFirst() + detachFirst() + expect(disposed).toEqual([first]) + + const replacement = stubAgent('split') + const detachReplacement = ctx.agents.enter(replacement) + // A stale repeated detach cannot remove the replacement. + detachFirst() + expect(ctx.agents.get(replacement.id)).toBe(replacement) + expect(() => { ctx.agents.announce(first) }).toThrow(/not live/) + detachReplacement() + // The replacement was inserted but never announced, so rollback produces + // no disposed-without-created notification. + expect(disposed).toEqual([first]) + }) }) describe('AgentRegistry factory seam', () => { @@ -84,7 +114,7 @@ describe('AgentRegistry factory seam', () => { function stubFactory() { const calls: { create: unknown[]; resume: unknown[] } = { create: [], resume: [] } const factory: import('@deepseek-ai/dsh-agent').AgentFactory = { - createAgent(options) { + async createAgent(options) { calls.create.push(options) return { agent: stubAgent(options.agentId), dispose: () => Promise.resolve() } }, @@ -99,7 +129,7 @@ describe('AgentRegistry factory seam', () => { it('create()/resume() throw when no factory is registered', async () => { const ctx = new Context() await ctx.plugin(AgentRegistry) - expect(() => ctx.agents.create({ agentId: AgentId('a'), sessionId: SessionId('s') })).toThrow(/no agent factory/) + await expect(ctx.agents.create({ agentId: AgentId('a'), sessionId: SessionId('s') })).rejects.toThrow(/no agent factory/) await expect(ctx.agents.resume({ agentId: AgentId('a'), resumeSessionId: SessionId('s') })).rejects.toThrow(/no agent factory/) }) @@ -109,7 +139,7 @@ describe('AgentRegistry factory seam', () => { const { factory, calls } = stubFactory() ctx.agents.setFactory(factory) - const created = ctx.agents.create({ agentId: AgentId('c1'), sessionId: SessionId('sess-1'), meta: { cwd: '/w' } }) + const created = await ctx.agents.create({ agentId: AgentId('c1'), sessionId: SessionId('sess-1'), meta: { cwd: '/w' } }) expect(created.agent.id).toBe('c1') expect(calls.create).toEqual([{ agentId: AgentId('c1'), sessionId: SessionId('sess-1'), meta: { cwd: '/w' } }]) @@ -132,10 +162,10 @@ describe('AgentRegistry factory seam', () => { const fiber = await ctx.plugin(Object.assign((inner: Context) => { dispose = inner.agents.setFactory(stubFactory().factory) }, { inject: ['agents'] })) - expect(() => ctx.agents.create({ agentId: AgentId('a'), sessionId: SessionId('s') })).not.toThrow() + await expect(ctx.agents.create({ agentId: AgentId('a'), sessionId: SessionId('s') })).resolves.toBeDefined() void dispose await fiber.dispose() // factory slot cleared → create throws again - expect(() => ctx.agents.create({ agentId: AgentId('a2'), sessionId: SessionId('s2') })).toThrow(/no agent factory/) + await expect(ctx.agents.create({ agentId: AgentId('a2'), sessionId: SessionId('s2') })).rejects.toThrow(/no agent factory/) }) }) diff --git a/packages/core/scope/src/index.ts b/packages/core/scope/src/index.ts index 61b46978bd..7a7032b0b6 100644 --- a/packages/core/scope/src/index.ts +++ b/packages/core/scope/src/index.ts @@ -22,7 +22,7 @@ * @module @deepseek-ai/dsh-scope */ -import type { Context } from 'cordis' +import type { Context, Fiber } from 'cordis' import { Context as CordisContext } from 'cordis' /** @@ -78,21 +78,30 @@ export interface Scope { rawDispose: () => Promise | void /** * Unwind the scope: dispose the backing fiber, running every collected - * registration disposer. Idempotent and always awaitable — a repeat call - * resolves immediately (the underlying Cordis disposer is single-shot and - * returns undefined the second time; this wrapper Promise-normalizes it). + * registration disposer. Idempotent and always awaitable: repeat and racing + * calls share one completion even though the underlying Cordis disposer is + * single-shot and returns undefined after its first invocation. * After disposal the scoped context is inert — a further registration * through it throws Cordis's INACTIVE_EFFECT. * @returns for the call that initiates teardown: resolves when every - * registration's disposer has settled. A repeat/racing call resolves - * immediately WITHOUT awaiting the in-flight teardown (the underlying - * Cordis disposer is single-shot) — a caller needing a shared quiescence - * boundary across racing disposers keeps its own completion promise (the - * agent factory's pattern). + * registration's disposer has settled. Every repeat/racing call awaits + * that same quiescence boundary, including when {@link rawDispose} claimed + * the underlying single-shot Cordis disposer first. */ dispose(): Promise } +/** + * Dispose a Cordis fiber and await its lifecycle inertia even when some other + * caller claimed the single-shot raw disposer first. `Fiber.dispose()` returns + * `undefined` on a repeat call, but the fiber's `inertia` remains the + * authoritative promise while its async unload is running. + */ +async function quiesceFiber(fiber: Fiber): Promise { + await Promise.resolve(fiber.dispose()) + while (fiber.inertia !== undefined) await fiber.inertia +} + /** * The shared no-op plugin every scope fiber mounts: named so diagnostics read * `scope` and shared so all scopes join ONE plugin runtime (Cordis deletes the @@ -127,21 +136,22 @@ export function createScope(ctx: Context, key: ScopeKey): Scope { // Runtime guard behind the ScopeKey type: callers outside the typechecker // (yml-configured plugins, JS consumers) can still pass a primitive. // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition - if (typeof key !== 'object' || key === null) { - throw new TypeError('createScope: key must be an object (scope keys are identity-compared)') + if ((typeof key !== 'object' && typeof key !== 'function') || key === null) { + throw new TypeError('createScope: key must be a non-null object or function (scope keys are identity-compared)') } const fiber = ctx.plugin(scope) const scoped: Context = fiber.ctx.extend({ [kScope]: key }) + let disposing: Promise | undefined return { ctx: scoped, // fiber.dispose IS the disposer Cordis pushed onto the minting fiber's // disposable list — the identity a composite effect must yield (see // Scope.rawDispose). rawDispose: fiber.dispose, - // Promise.resolve-normalized: a cordis fiber's dispose returns undefined - // on a repeat call (the epoch is already cleared), and Scope.dispose - // promises an awaitable on every call. - dispose: () => Promise.resolve(fiber.dispose()), + // Memoize the public boundary and explicitly follow fiber inertia: the raw + // disposer must remain the exact Cordis function for ordered composition, + // so it cannot itself be wrapped to record a raw-first invocation. + dispose: () => (disposing ??= quiesceFiber(fiber)), } } @@ -293,8 +303,10 @@ export interface ScopeHost { mint(key: ScopeKey): Scope /** * Dispose the host fiber and with it every scope minted through it. - * @returns resolves when all collected disposers have settled (first call; - * a repeat call resolves immediately — single-shot, like Scope.dispose). + * Every racing/repeat caller observes the same completion, including when a + * child's raw disposer started before host disposal. + * @returns resolves when the host and every minted scope have reached + * quiescence. */ dispose(): Promise } @@ -334,8 +346,33 @@ export async function scopeHost(ctx: Context, services: string[]): Promise() + let disposing: Promise | undefined + const dispose = async (): Promise => { + // Start every boundary before awaiting any one of them. A child whose raw + // disposer already ran is still followed through Scope.dispose(); a child + // the host unload claims first is followed through the same fiber inertia. + const tasks = [quiesceFiber(fiber), ...[...scopes].map(scope => scope.dispose())] + const results = await Promise.allSettled(tasks) + scopes.clear() + const errors = results.flatMap(result => result.status === 'rejected' ? [result.reason as unknown] : []) + if (errors.length === 1) throw errors[0] + if (errors.length > 1) throw new AggregateError(errors, 'scopeHost: disposal failed') + } return { - mint: (key: ScopeKey) => createScope(host, key), - dispose: () => Promise.resolve(fiber.dispose()), + mint: (key: ScopeKey) => { + const minted = createScope(host, key) + let disposing: Promise | undefined + const tracked: Scope = { + ctx: minted.ctx, + // Preserve the exact Cordis identity: only the public shared boundary + // is wrapped to retire this child from the host's tracking set. + rawDispose: minted.rawDispose, + dispose: () => (disposing ??= minted.dispose().finally(() => { scopes.delete(tracked) })), + } + scopes.add(tracked) + return tracked + }, + dispose: () => (disposing ??= dispose()), } } diff --git a/packages/core/scope/tests/scope.spec.ts b/packages/core/scope/tests/scope.spec.ts index 664ae00d7e..44b9cf4442 100644 --- a/packages/core/scope/tests/scope.spec.ts +++ b/packages/core/scope/tests/scope.spec.ts @@ -30,14 +30,19 @@ async function mintScope(ctx: Context, key: object): Promise { } describe('createScope', () => { - it('rejects a primitive key at runtime (identity-compared keys must be objects)', () => { + it('rejects primitive keys but accepts callable objects (matching ScopeKey)', async () => { const ctx = new Context() // Typed through `unknown` so the ScopeKey type cannot argue the assertion // away: this test exercises exactly the callers the typechecker misses. const badKeys: unknown[] = ['k', null] for (const bad of badKeys) { - expect(() => createScope(ctx, bad as ScopeKey)).toThrow(/must be an object/) + expect(() => createScope(ctx, bad as ScopeKey)).toThrow(/must be a non-null object or function/) } + + const callable = Object.assign(() => {}, { nameForTest: 'callable-key' }) + const scope = await mintScope(ctx, callable) + expect(scopeOf(scope.ctx)).toBe(callable) + await scope.dispose() }) it('tags the scoped context, readable through derivations (nearest tag wins)', async () => { @@ -91,6 +96,29 @@ describe('createScope', () => { expect(() => scope.ctx.effect(() => () => {})).toThrow(/inactive context/) }) + it('dispose() follows a rawDispose-first race through async quiescence', async () => { + const ctx = new Context() + const scope = await mintScope(ctx, { name: 'raw-first' }) + const gate = Promise.withResolvers() + let cleanupFinished = false + scope.ctx.effect(() => async () => { + await gate.promise + cleanupFinished = true + }) + + const raw = Promise.resolve(scope.rawDispose()) + let publicSettled = false + const publicDispose = scope.dispose().then(() => { publicSettled = true }) + await Promise.resolve() + expect(publicSettled).toBe(false) + expect(cleanupFinished).toBe(false) + + gate.resolve(undefined) + await Promise.all([raw, publicDispose]) + expect(cleanupFinished).toBe(true) + await expect(scope.dispose()).resolves.toBeUndefined() + }) + it('rawDispose is the exact cordis disposer: yielding it nests the scope at its position', async () => { const ctx = new Context() const order: string[] = [] @@ -287,6 +315,52 @@ describe('scopeHost', () => { expect(() => scope.ctx.effect(() => () => {})).toThrow(/inactive context/) }) + it('dispose waits for a child whose raw disposer won the race', async () => { + const ctx = new Context() + ctx.provide('answers', { value: 42 }) + const host = await scopeHost(ctx, ['answers']) + const scope = host.mint({ name: 'raw-first-child' }) + const gate = Promise.withResolvers() + let cleanupFinished = false + scope.ctx.effect(() => async () => { + await gate.promise + cleanupFinished = true + }) + + const raw = Promise.resolve(scope.rawDispose()) + let hostSettled = false + const hostDispose = host.dispose().then(() => { hostSettled = true }) + await Promise.resolve() + expect(hostSettled).toBe(false) + + gate.resolve(undefined) + await Promise.all([raw, hostDispose]) + expect(cleanupFinished).toBe(true) + await expect(host.dispose()).resolves.toBeUndefined() + }) + + it('reaches every child before surfacing one or multiple disposal failures', async () => { + const oneCtx = new Context() + oneCtx.provide('answers', { value: 42 }) + const oneHost = await scopeHost(oneCtx, ['answers']) + const one = oneHost.mint({ name: 'one' }) + one.dispose = () => Promise.reject(new Error('one failed')) + await expect(oneHost.dispose()).rejects.toThrow('one failed') + + const manyCtx = new Context() + manyCtx.provide('answers', { value: 42 }) + const manyHost = await scopeHost(manyCtx, ['answers']) + const a = manyHost.mint({ name: 'a' }) + const b = manyHost.mint({ name: 'b' }) + a.dispose = () => Promise.reject(new Error('a failed')) + b.dispose = () => Promise.reject(new Error('b failed')) + await expect(manyHost.dispose()).rejects.toMatchObject({ + name: 'AggregateError', + message: 'scopeHost: disposal failed', + errors: [expect.objectContaining({ message: 'a failed' }), expect.objectContaining({ message: 'b failed' })], + }) + }) + it('fails LOUD naming absent services instead of resolving as a silent no-op host', async () => { const ctx = new Context() await expect(scopeHost(ctx, ['tools', 'systemPrompt'])) diff --git a/packages/core/session/src/index.ts b/packages/core/session/src/index.ts index 0bbd957a79..d3f4ca4890 100644 --- a/packages/core/session/src/index.ts +++ b/packages/core/session/src/index.ts @@ -538,8 +538,12 @@ export class SessionStore extends Service { const emitCtx = this.ctx session.onAppend = (event) => { emitCtx.emit(carrier, 'session/event', session, event) } this.store.set(session.id, session) + let entered = true return () => { + if (!entered) return + entered = false session.onAppend = undefined + this.carriers.delete(session) this.store.delete(session.id) } } @@ -549,7 +553,7 @@ export class SessionStore extends Service { * yield the detach disposer first (rollback safety — see {@link enter}). * @param session - the entered session to announce to listeners. */ announce(session: Session): void { - this.ctx.emit(this.carrierFor(session), 'session/created', session) + this.ctx.emit(this.liveCarrierFor(session), 'session/created', session) } /** @@ -563,13 +567,23 @@ export class SessionStore extends Service { * @returns resolves when every flush listener has settled; rejects if one rejects. */ async flush(session: Session): Promise { - await this.ctx.parallel(this.carrierFor(session), 'session/flush', session) + await this.ctx.parallel(this.liveCarrierFor(session), 'session/flush', session) } - /** The carrier {@link enter} captured, or a subject-less one for a session - * never entered (defensive: dispatch stays filtered either way). */ - private carrierFor(session: Session): Scoped { - return this.carriers.get(session) ?? scopeTarget(session, undefined) + /** Return the exact live session's carrier; detached/prepared objects reject. */ + private liveCarrierFor(session: Session): Scoped { + if (this.store.get(session.id) !== session) { + throw new Error(`session "${session.id}" is not live in this store`) + } + const carrier = this.carriers.get(session) + // enter() installs store + carrier in one synchronous sequence; a live + // session without one is an internal invariant violation, never fallback + // to subject-less dispatch (that would silently cross scope boundaries). + /* v8 ignore next -- enter installs store and carrier in one synchronous sequence */ + if (carrier === undefined) { + throw new Error(`session "${session.id}" has no dispatch carrier`) + } + return carrier } /** diff --git a/packages/core/session/tests/scoped.spec.ts b/packages/core/session/tests/scoped.spec.ts index 743b72def3..ee1e710397 100644 --- a/packages/core/session/tests/scoped.spec.ts +++ b/packages/core/session/tests/scoped.spec.ts @@ -91,16 +91,33 @@ describe('sessions.flush()', () => { await expect(ctx.sessions.flush(session)).rejects.toThrow('disk full') }) - it('flushes a never-entered session with a subject-less carrier (defensive path)', async () => { + it('rejects a never-entered session instead of inventing a carrier', async () => { const ctx = await mount() const scope = await mintScope(ctx, 'owner') const flushed: string[] = [] ctx.on('session/flush', (session: Session) => void flushed.push(`global:${session.id}`)) scope.ctx.on('session/flush', (session: Session) => void flushed.push(`owner:${session.id}`)) - const detached = ctx.sessions.prepare() - await ctx.sessions.flush(detached) - expect(flushed).toEqual([`global:${detached.id}`]) + const prepared = ctx.sessions.prepare() + await expect(ctx.sessions.flush(prepared)).rejects.toThrow(/not live/) + expect(flushed).toEqual([]) + }) + + it('clears a detached carrier and rejects stale flushes', async () => { + const ctx = await mount() + const scope = await mintScope(ctx, 'owner') + const flushed: string[] = [] + ctx.on('session/flush', (session: Session) => void flushed.push(`global:${session.id}`)) + scope.ctx.on('session/flush', (session: Session) => void flushed.push(`owner:${session.id}`)) + + const session = scope.ctx.sessions.prepare() + const detach = scope.ctx.sessions.enter(session) + await ctx.sessions.flush(session) + expect(flushed.sort()).toEqual([`global:${session.id}`, `owner:${session.id}`]) + + detach() + await expect(ctx.sessions.flush(session)).rejects.toThrow(/not live/) + expect(flushed).toHaveLength(2) }) it('keyOf sanity: distinct scopes carry distinct keys', async () => { diff --git a/packages/core/session/tests/session.spec.ts b/packages/core/session/tests/session.spec.ts index f338b635f3..f63353af9b 100644 --- a/packages/core/session/tests/session.spec.ts +++ b/packages/core/session/tests/session.spec.ts @@ -289,6 +289,7 @@ describe('SessionStore', () => { expect(created).toEqual([session]) // The detach disposer removes the entry + stops notification. detach() + detach() // idempotent: cannot disturb a later same-id lifecycle expect(ctx.sessions.get(SessionId('lifecycle'))).toBeUndefined() }) diff --git a/packages/core/system-prompt/src/index.ts b/packages/core/system-prompt/src/index.ts index f89370447f..6d3ed3af58 100644 --- a/packages/core/system-prompt/src/index.ts +++ b/packages/core/system-prompt/src/index.ts @@ -1,8 +1,9 @@ /** * System prompt assembly registry. Plugins contribute ordered text sections, - * tool schema providers, and named prompt variables; `assemble(context)` - * collates them through a waterfall that runs once per step, and - * `renderPrompt` interpolates `{{variable}}` references into the final text. + * tool schema providers, named prompt variables, and authoritative named + * protections; `assemble(context)` collates them through a waterfall that + * runs once per step, restores protected contributions, and `renderPrompt` + * interpolates `{{variable}}` references into the final text. * * The harness-owned prompt openers live here too: this plugin registers the * static `harness:identity` section (order −100) and the deployment's @@ -43,8 +44,8 @@ declare module 'cordis' { */ 'system-prompt/assemble'(this: Scoped, assembly: PromptAssembly, context: AssembleContext, next: () => Promise): Promise /** - * A section, tool provider, or variable provider was registered or - * unregistered (the assembly inputs changed — possibly for one scope + * A section, tool provider, variable provider, or protection was registered + * or unregistered (the assembly inputs changed — possibly for one scope * only). An UNFILTERED registry-subject notification, deliberately not * scope-filtered dispatch: a global change concerns every agent's next * assembly, so a scoped listener subscribing here sees every change, not @@ -121,6 +122,27 @@ export interface ToolProviderResult { knownNames?: readonly string[] } +/** + * Canonical prompt contributions that survive the assembly waterfall. + * + * Protection is declarative by contribution name rather than an ordered + * callback: after every `system-prompt/assemble` listener has finished, the + * service restores each protected name to the exact presence and definition + * produced by its registries before the waterfall. Restored entries keep + * canonical order with one another and anchor before their first surviving + * later unprotected canonical neighbor (or at the end); the service does not + * undo a listener's reordering of unprotected entries. A name absent from that + * canonical assembly is removed from the result. This makes mode-dependent + * absence protectable too (for example, a native tool that intentionally stays + * off the wire in Code Mode). + */ +export interface PromptProtection { + /** Section names whose canonical registry output is authoritative. */ + sections?: readonly string[] + /** Tool names whose canonical provider output is authoritative. */ + tools?: readonly string[] +} + /** * The assembled prompt. * @@ -211,6 +233,28 @@ function orderTools(tools: ToolSchema[], toolOrder: string[] | undefined, knownN name === TOOL_ORDER_REST ? rest : tools.filter(tool => tool.name === name)) } +/** Restore protected named entries from `canonical`, anchored before their next unprotected canonical neighbor. */ +function restoreProtected( + canonical: readonly T[], result: readonly T[], protectedNames: ReadonlySet, +): T[] { + const restored = result.filter(entry => !protectedNames.has(entry.name)) + for (const [index, entry] of canonical.entries()) { + if (!protectedNames.has(entry.name)) continue + // Protected entries are inserted in canonical order. Anchor each one + // before the first later UNPROTECTED canonical neighbor that survived the + // waterfall; if none survived, it belongs at the end. Looking only at + // unprotected neighbors avoids reversing adjacent protected entries. + const following = new Set( + canonical.slice(index + 1) + .filter(candidate => !protectedNames.has(candidate.name)) + .map(candidate => candidate.name), + ) + const next = restored.findIndex(candidate => following.has(candidate.name)) + restored.splice(next < 0 ? restored.length : next, 0, structuredClone(entry)) + } + return restored +} + /** Lexicographic (code-unit) name comparison — locale-independent, so the order is identical on every machine. */ function compareToolNames(a: ToolSchema, b: ToolSchema): number { return a.name < b.name ? -1 : a.name > b.name ? 1 : 0 @@ -327,10 +371,10 @@ function interpolate(section: AssembledSection, variables: Record = z.object({ @@ -347,10 +391,12 @@ export class SystemPrompt extends Service { private sections: PromptSection[] = [] private toolProviders: ((context: AssembleContext) => ToolProviderResult)[] = [] private variableProviders = new Map string | undefined>() + private protections: PromptProtection[] = [] /** Per-scope layers (`@deepseek-ai/dsh-scope`); entries drop when a layer empties, so a disposed scope leaves no residue. */ private scopedSections = new Map() private scopedToolProviders = new Map ToolProviderResult)[]>() private scopedVariableProviders = new Map string | undefined>>() + private scopedProtections = new Map() private readonly toolOrder: string[] | undefined constructor(ctx: Context, public config: Config) { @@ -383,7 +429,12 @@ export class SystemPrompt extends Service { * scoped context (`agent.ctx`) contributes to that scope alone — and a * scoped section SHADOWS a same-named global section for that scope's * assemblies (most-specific-wins; this is how a per-agent persona overrides - * `deployment:persona`). Throws if the SAME layer already has the name (a + * `deployment:persona`) unless that global name is protected: global + * protection reserves its section name against scoped shadows so the + * registration owner—not a later scope—defines the canonical value. The + * registry snapshots `name`, `order`, and `text` before checking/storing, so + * later caller-object mutation cannot rename a contribution. Throws + * if the SAME layer already has the name (a * duplicate would silently double prompt text — e.g. a double-loaded tool * plugin; the global-duplicate message names `agent.ctx` as the per-agent * alternative). Removed when the calling fiber is disposed. Emits @@ -395,6 +446,14 @@ export class SystemPrompt extends Service { */ section(section: PromptSection): () => Promise | void { const scope = scopeOf(this.ctx) + const snapshot: PromptSection = { + name: section.name, + order: section.order, + text: section.text, + } + if (scope !== undefined && this.protections.some(record => record.sections?.includes(snapshot.name))) { + throw new Error(`prompt section "${snapshot.name}" is globally protected and cannot be shadowed in an agent scope`) + } const dispose = this.ctx.effect(function* (this: SystemPrompt) { const layer = scope === undefined ? this.sections @@ -403,18 +462,18 @@ export class SystemPrompt extends Service { this.scopedSections.set(scope, created) return created })() - if (layer.some(existing => existing.name === section.name)) { + if (layer.some(existing => existing.name === snapshot.name)) { throw new Error(scope === undefined - ? `prompt section "${section.name}" is already registered (for a per-agent override, register through that agent's \`agent.ctx\` instead)` - : `prompt section "${section.name}" is already registered in this scope`) + ? `prompt section "${snapshot.name}" is already registered (for a per-agent override, register through that agent's \`agent.ctx\` instead)` + : `prompt section "${snapshot.name}" is already registered in this scope`) } - layer.push(section) + layer.push(snapshot) // Yield the rollback BEFORE emitting `system-prompt/change`: a generator // effect collects each yielded disposer before the next step runs, so a // throwing change listener removes the section instead of leaking it into // every future assembly. yield () => { - const index = layer.indexOf(section) + const index = layer.indexOf(snapshot) /* v8 ignore next 3 -- defensive: section was registered, so indexOf is guaranteed >= 0 */ if (index >= 0) layer.splice(index, 1) if (scope !== undefined && layer.length === 0) this.scopedSections.delete(scope) @@ -531,6 +590,73 @@ export class SystemPrompt extends Service { return dispose } + /** + * Protect named section/tool contributions from the assembly waterfall. + * The layer is decided by the calling context: a global protection applies + * to every assembly, while one registered through `agent.ctx` applies only + * to that agent's scope. The name's canonical registry/provider output is + * restored AFTER the whole waterfall, so listener registration order cannot + * strip, replace, duplicate, or fabricate it. Canonical absence is restored + * too: if the protected name is intentionally absent for an assembly, a + * listener-injected entry with that name is removed. The input arrays are + * snapshotted; an empty protection throws because it cannot affect output. + * Removed with the calling fiber and emits `system-prompt/change` on + * registration/unregistration. A global section protection also reserves the + * name against scoped section shadows; registering protection when such a + * shadow already exists fails loudly instead of protecting the wrong owner. + * @param protection - section and/or tool names whose canonical presence and definitions are authoritative. + * @returns the exact Cordis effect disposer that removes the protection. + */ + protect(protection: PromptProtection): () => Promise | void { + const scope = scopeOf(this.ctx) + const snapshot: PromptProtection = { + ...protection.sections !== undefined ? { sections: [...new Set(protection.sections)] } : {}, + ...protection.tools !== undefined ? { tools: [...new Set(protection.tools)] } : {}, + } + if ((snapshot.sections?.length ?? 0) === 0 && (snapshot.tools?.length ?? 0) === 0) { + throw new Error('systemPrompt.protect() requires at least one section or tool name') + } + if (scope === undefined && snapshot.sections !== undefined) { + const protectedSections = new Set(snapshot.sections) + const conflicts = [...this.scopedSections.values()] + .flatMap(layer => layer.filter(section => protectedSections.has(section.name)).map(section => section.name)) + if (conflicts.length > 0) { + throw new Error(`systemPrompt.protect() cannot globally protect section${conflicts.length > 1 ? 's' : ''} ${[...new Set(conflicts)].map(name => `"${name}"`).join(', ')} while scoped shadows are registered`) + } + } + const dispose = this.ctx.effect(function* (this: SystemPrompt) { + const layer = scope === undefined + ? this.protections + : this.scopedProtections.get(scope) ?? (() => { + const created: PromptProtection[] = [] + this.scopedProtections.set(scope, created) + return created + })() + layer.push(snapshot) + yield () => { + const index = layer.indexOf(snapshot) + /* v8 ignore next 3 -- defensive: protection was registered, so indexOf is guaranteed >= 0 */ + if (index >= 0) layer.splice(index, 1) + if (scope !== undefined && layer.length === 0) this.scopedProtections.delete(scope) + this.ctx.emit('system-prompt/change') + } + this.ctx.emit('system-prompt/change') + }.bind(this), 'systemPrompt.protect()') + return dispose + } + + /** Resolve the authoritative names registered for one assembly scope. */ + private protectedNames(scope: ScopeKey | undefined): { sections: Set; tools: Set } { + const records = [ + ...this.protections, + ...(scope === undefined ? [] : this.scopedProtections.get(scope)) ?? [], + ] + return { + sections: new Set(records.flatMap(record => record.sections ?? [])), + tools: new Set(records.flatMap(record => record.tools ?? [])), + } + } + /** * Assemble the current prompt for one caller: the global layer merged with * {@link AssembleContext.scope}'s layer (scoped sections/variables SHADOW @@ -546,10 +672,11 @@ export class SystemPrompt extends Service { * Tool schemas are deep-cloned because adapters and request waterfalls may * mutate schema objects. Runs through the `system-prompt/assemble` * waterfall, giving listeners the opportunity to mutate or replace the - * assembly before it reaches the model — like the sections' `order` sort, - * tool canonicalization happens on the initial assembly, and a listener - * owns the determinism of whatever it emits. Await the result before - * reading the assembly values — waterfall listeners may be async. + * assembly, then restores every visible {@link PromptProtection} from the + * pre-waterfall canonical assembly. Like the sections' `order` sort, tool + * canonicalization happens on the initial assembly; unprotected listener + * output owns its own determinism. Await the result before reading the + * assembly values — waterfall listeners may be async. * Interpolation happens later, in {@link renderPrompt}. * @param context - what this assembly is for (defaults to an empty context; * see {@link AssembleContext}). @@ -560,6 +687,10 @@ export class SystemPrompt extends Service { // (`assemble().catch(...)` would miss it). async assemble(context: AssembleContext = {}): Promise { const scope = context.scope + // Protection is a registry input too: snapshot which names are protected + // at assembly start. Registrations that land while an async waterfall is + // in flight affect the NEXT assembly, matching the other registries. + const protectedNames = this.protectedNames(scope) // Variables: global layer first, then the scope's layer OVERWRITES // same-named entries (shadowing — a per-agent value wins for that agent). const variables: Record = {} @@ -611,7 +742,27 @@ export class SystemPrompt extends Service { tools: orderTools(collected, this.toolOrder, knownNames), variables, } - return this.ctx.waterfall(scopeTarget(this, scope), 'system-prompt/assemble', assembly, context, () => Promise.resolve(assembly)) + // Snapshot only the fields protection can restore. The waterfall receives + // `assembly` by reference and may mutate it or return a replacement; these + // independent snapshots remain the authoritative registry product. + const canonicalSections = protectedNames.sections.size > 0 ? structuredClone(assembly.sections) : undefined + const canonicalTools = protectedNames.tools.size > 0 ? structuredClone(assembly.tools) : undefined + const result = await this.ctx.waterfall( + scopeTarget(this, scope), 'system-prompt/assemble', assembly, context, + () => Promise.resolve(assembly), + ) + // Build a replacement instead of mutating the waterfall result: a + // listener may legitimately return a frozen assembly. Merge-extensible + // fields ride through the spread untouched. + return { + ...result, + ...canonicalSections !== undefined + ? { sections: restoreProtected(canonicalSections, result.sections, protectedNames.sections) } + : {}, + ...canonicalTools !== undefined + ? { tools: restoreProtected(canonicalTools, result.tools, protectedNames.tools) } + : {}, + } } } diff --git a/packages/core/system-prompt/tests/scoped.spec.ts b/packages/core/system-prompt/tests/scoped.spec.ts index 729ec52b1c..d59e3a234a 100644 --- a/packages/core/system-prompt/tests/scoped.spec.ts +++ b/packages/core/system-prompt/tests/scoped.spec.ts @@ -62,6 +62,21 @@ describe('scoped sections', () => { scope.ctx.systemPrompt.section({ name: 'y', order: 1, text: 'a' }) expect(() => scope.ctx.systemPrompt.section({ name: 'y', order: 1, text: 'b' })).toThrow(/already registered in this scope/) }) + + it.each([ + [['reserved'], 'section "reserved"'], + [['first', 'second'], 'sections "first", "second"'], + ])('rejects global protection added after scoped shadows (%j)', async (names, message) => { + const ctx = await mount() + const scope = await mintScope(ctx, 'child') + for (const name of names) { + scope.ctx.systemPrompt.section({ name, order: 1, text: `scoped ${name}` }) + } + + expect(() => ctx.systemPrompt.protect({ sections: names })).toThrow(message) + expect(renderPrompt(await ctx.systemPrompt.assemble({ scope: scopeKeyOf(scope) }))) + .toContain(`scoped ${names[0]}`) + }) }) describe('scoped variables', () => { @@ -148,4 +163,31 @@ describe('scoped assemble dispatch', () => { expect(global.sections.some(s => s.name === 'listener:extra')).toBe(false) expect(shaped).toHaveLength(1) }) + + it('a scoped protection finalizes only its own assemblies and disappears with the scope', async () => { + const ctx = await mount() + const scope = await mintScope(ctx, 'child') + const key = scopeKeyOf(scope) + ctx.systemPrompt.section({ name: 'required', order: 10, text: 'required' }) + ctx.systemPrompt.tools(() => ({ schemas: [schema('required')] })) + scope.ctx.systemPrompt.protect({ sections: ['required'], tools: ['required'] }) + ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { + const result = await next() + result.sections = result.sections.filter(section => section.name !== 'required') + result.tools = result.tools.filter(tool => tool.name !== 'required') + return result + }, { prepend: true }) + + const scoped = await ctx.systemPrompt.assemble({ scope: key }) + const global = await ctx.systemPrompt.assemble() + expect(scoped.sections.some(section => section.name === 'required')).toBe(true) + expect(scoped.tools.some(tool => tool.name === 'required')).toBe(true) + expect(global.sections.some(section => section.name === 'required')).toBe(false) + expect(global.tools.some(tool => tool.name === 'required')).toBe(false) + + await scope.dispose() + const disposed = await ctx.systemPrompt.assemble({ scope: key }) + expect(disposed.sections.some(section => section.name === 'required')).toBe(false) + expect(disposed.tools.some(tool => tool.name === 'required')).toBe(false) + }) }) diff --git a/packages/core/system-prompt/tests/system-prompt.spec.ts b/packages/core/system-prompt/tests/system-prompt.spec.ts index 3d4cb9d02c..95d46b705e 100644 --- a/packages/core/system-prompt/tests/system-prompt.spec.ts +++ b/packages/core/system-prompt/tests/system-prompt.spec.ts @@ -205,6 +205,103 @@ describe('SystemPrompt', () => { expect(assembly.sections).toHaveLength(0) }) + describe('canonical contribution protection', () => { + it('restores exact protected definitions after every listener, in canonical relative order', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + ctx.systemPrompt.section({ name: 'before', order: 10, text: 'before' }) + ctx.systemPrompt.section({ name: 'protected', order: 20, text: 'canonical section' }) + ctx.systemPrompt.section({ name: 'after', order: 30, text: 'after' }) + ctx.systemPrompt.tools(() => ({ schemas: [ + { name: 'alpha', description: 'alpha', parameters: {} }, + { name: 'protected', description: 'canonical tool', parameters: { type: 'object', properties: { answer: { type: 'number' } } } }, + { name: 'zulu', description: 'zulu', parameters: {} }, + ] })) + const protection = { sections: ['protected'], tools: ['protected'] } + ctx.systemPrompt.protect(protection) + // Registration snapshots its arrays; caller mutation cannot change what + // the service makes authoritative. + protection.sections[0] = 'after' + protection.tools[0] = 'zulu' + + // Registered AFTER the protection and prepended: it is outside every + // ordinary listener that existed when protect() ran, but service-level + // finalization still restores the canonical entries after it returns. + ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { + const result = await next() + return Object.freeze({ + sections: [ + ...result.sections.filter(section => section.name !== 'protected'), + { name: 'protected', order: -999, text: 'wrong section' }, + { name: 'protected', order: 999, text: 'duplicate section' }, + ], + tools: [ + ...result.tools.filter(tool => tool.name !== 'protected'), + { name: 'protected', description: 'wrong tool', parameters: {} }, + { name: 'protected', description: 'duplicate tool', parameters: {} }, + ], + variables: result.variables, + }) + }, { prepend: true }) + + const assembly = await ctx.systemPrompt.assemble() + const protectedSections = assembly.sections.filter(section => section.name === 'protected') + const protectedTools = assembly.tools.filter(tool => tool.name === 'protected') + expect(protectedSections).toEqual([{ name: 'protected', order: 20, text: 'canonical section' }]) + expect(protectedTools).toEqual([{ + name: 'protected', + description: 'canonical tool', + parameters: { type: 'object', properties: { answer: { type: 'number' } } }, + }]) + expect(assembly.sections.map(section => section.name).indexOf('protected')) + .toBeLessThan(assembly.sections.map(section => section.name).indexOf('after')) + expect(assembly.tools.map(tool => tool.name)).toEqual(['alpha', 'protected', 'zulu']) + }) + + it('protects canonical absence and rejects an empty protection', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + // Separate registrations exercise the set-union contract: protections + // may name only sections or only tools and still compose. + ctx.systemPrompt.protect({ sections: ['mode-hidden'] }) + ctx.systemPrompt.protect({ tools: ['mode-hidden'] }) + ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { + const result = await next() + result.sections.push({ name: 'mode-hidden', order: 100, text: 'fabricated' }) + result.tools.push({ name: 'mode-hidden', description: 'fabricated', parameters: {} }) + return result + }) + + const assembly = await ctx.systemPrompt.assemble() + expect(assembly.sections.some(section => section.name === 'mode-hidden')).toBe(false) + expect(assembly.tools.some(tool => tool.name === 'mode-hidden')).toBe(false) + expect(() => ctx.systemPrompt.protect({})).toThrow(/at least one section or tool name/) + expect(() => ctx.systemPrompt.protect({ sections: [], tools: [] })).toThrow(/at least one section or tool name/) + }) + + it('removes a protection with its contributing fiber (HMR safety)', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + ctx.systemPrompt.section({ name: 'protected', order: 10, text: 'canonical' }) + ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { + const result = await next() + result.sections = result.sections.filter(section => section.name !== 'protected') + return result + }) + let changes = 0 + ctx.on('system-prompt/change', () => { changes++ }) + const fiber = await ctx.plugin(Object.assign((inner: Context) => { + inner.systemPrompt.protect({ sections: ['protected'] }) + }, { inject: ['systemPrompt'] })) + + expect((await ctx.systemPrompt.assemble()).sections.some(section => section.name === 'protected')).toBe(true) + expect(changes).toBe(1) + await fiber.dispose() + expect((await ctx.systemPrompt.assemble()).sections.some(section => section.name === 'protected')).toBe(false) + expect(changes).toBe(2) + }) + }) + it('assembles snapshots so one-step mutations do not leak into future assemblies', async () => { const ctx = new Context() await ctx.plugin(SystemPrompt) diff --git a/packages/core/tools/src/code-mode.ts b/packages/core/tools/src/code-mode.ts index c985eb852c..323fbeed2b 100644 --- a/packages/core/tools/src/code-mode.ts +++ b/packages/core/tools/src/code-mode.ts @@ -1,12 +1,14 @@ /** * Code Mode: the `run_code` tool and its dispatch bridge. The model writes a - * TypeScript program; the bridge hands it to `ctx.codeRuntime` with one - * async binding per registered tool, serializes every binding call through a - * per-run queue onto `ToolRegistry.execute()` (so `tools/pre-execute` / - * `tools/post-execute` gate sub-calls exactly like native ones), logs each - * sub-dispatch as a `tool/code-dispatch` session event, and returns only the - * program's curated output. The registry itself decides WHEN this tool - * exists (its `mode` config); this module owns only the tool and the bridge. + * TypeScript program; the bridge hands it to `ctx.codeRuntime` with one async + * binding per end capability visible to the calling agent, then serializes + * every binding call through a per-run queue onto `ToolRegistry.execute()`. + * Sub-calls therefore traverse the complete pre/guard/around/post/final-result + * pipeline exactly like native calls and carry the outer execution's opaque + * token for correlation. The bridge logs each sub-dispatch as a + * `tool/code-dispatch` session event and returns only the program's curated + * output. The registry itself decides WHEN this tool exists (its `mode` + * config); this module owns only the tool and the bridge. * * @module @deepseek-ai/dsh-tools/src/code-mode */ @@ -205,6 +207,7 @@ export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () => name, arguments: normalized.dispatched, ...exec.agent ? { agent: exec.agent } : {}, + parent: exec.token, signal: runController.signal, }) const text = textOf(result.content) diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index c3b708ecb8..0428eaef9c 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -1,15 +1,15 @@ /** * Tool registry and execution pipeline. Plugins register tools; the registry * feeds schemas into the system prompt, and `execute()` dispatches each call - * through `tools/pre-execute` (the allow/deny gate) → `tools/execute` (an - * around-dispatch wrapper for timeout/retry/metrics plugins) → `tools/post-execute` - * (inspect/replace the result, attach context) for sandbox, permission, and hook - * plugins to gate or transform a call. + * through `tools/pre-execute` (the extensible allow/deny gate) → monotonic + * registered guards → `tools/execute` (an around-dispatch wrapper for + * timeout/retry/metrics plugins) → `tools/post-execute` (inspect/replace the + * result, attach context) → the observe-only `tools/result` notification. * * The registry also owns HOW its tools are presented to the model — its * `mode` config: `'native'` (every tool as a wire function definition, - * today's behavior and the default), `'code'` (the wire carries exactly one - * tool, `run_code`, plus a generated TypeScript SDK prompt section), or + * today's behavior and the default), `'code'` (the registry's canonical wire + * contribution is one tool, `run_code`, plus a generated TypeScript SDK prompt section), or * `'both'`. See `code-mode.ts` (the tool + dispatch bridge) and * `ts-types.ts` (the SDK codegen); design in the Code Mode RFC. * @@ -21,8 +21,9 @@ import z from 'schemastery' import { scopeOf, scopeTarget } from '@deepseek-ai/dsh-scope' import type { ScopeKey, Scoped } from '@deepseek-ai/dsh-scope' import type { CallId, ContentBlock, ToolSchema } from '@deepseek-ai/dsh-llm' -import { HarnessError } from '@deepseek-ai/dsh-llm' +import { deepFreeze, HarnessError } from '@deepseek-ai/dsh-llm' import type { Agent, HookContext } from '@deepseek-ai/dsh-agent' +import { isJsonValue } from '@deepseek-ai/dsh-session' import type { ToolProviderResult } from '@deepseek-ai/dsh-system-prompt' import type { CodeRuntime } from '@deepseek-ai/dsh-code-runtime' import type { ToolCallView, ToolResultView } from './presentation.ts' @@ -105,10 +106,13 @@ declare module 'cordis' { * unknown tool) is already normalized to an `isError` result by the time a * listener's `await next()` returns, so a wrapper never sees a raw throw from * the tool body. This is the seam a timeout/retry/metrics plugin wraps: it can - * mutate `exec` (e.g. replace `exec.signal` with a per-call deadline) BEFORE - * `next()` and inspect the result AFTER. (Cordis `next()` ignores any passed - * arguments and re-invokes downstream with the shared payload, so a wrapper - * mutates `exec` in place rather than passing a new object to `next()`.) + * set or replace the one mutable field, `exec.signal` (e.g. with a per-call + * deadline), BEFORE `next()`, restore/delete it afterward, and inspect the result AFTER. Call identity + * (`token`, `callId`, `name`, `arguments`, `agent`, and `parent`) is immutable throughout the + * pipeline so a wrapper cannot change which capability or scope was + * authorized. (Cordis `next()` ignores passed arguments and re-invokes + * downstream with the shared payload, so a wrapper changes `exec.signal` in + * place rather than passing a new object to `next()`.) * Multiple listeners compose by registration order — an outer one wraps the * inner ones plus dispatch. * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by @@ -139,6 +143,21 @@ declare module 'cordis' { * @mode waterfall */ 'tools/post-execute'(this: Scoped, exec: ToolExecution, result: ToolExecutionResult, next: () => Promise): Promise + /** + * Awaited notification of the authoritative FINAL tool outcome, after the + * complete pre/execute/post pipeline, final lossless-JSON validation, and + * outer error normalization. + * Unlike the three waterfalls, this seam cannot transform the result: each + * listener receives the now-frozen execution object and a deep-frozen result + * snapshot; listener failures are contained and logged, and + * {@link ToolRegistry.execute} still returns the outcome. + * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): keyed by + * `exec.agent`, using the same carrier as the pipeline. + * @param exec - the execution object that traversed the pipeline. + * @param result - a deep-frozen snapshot of the final returned result. + * @mode parallel + */ + 'tools/result'(this: Scoped, exec: Readonly, result: Readonly): Promise | void /** * A tool was registered or unregistered, or a scoped restriction changed * (the available tool set changed — possibly for one scope only). An @@ -152,10 +171,8 @@ declare module 'cordis' { } } -// TODO(review): revisit these shapes when the first real tools and -// sandbox/permission plugins land (e.g. a concurrency-safety hint for -// parallel execution — Claude Code partitions read-only tools; phase 1 -// executes sequentially). +// TODO(review): revisit these shapes when concurrency metadata becomes useful +// (for example, a read-only hint that would permit safe parallel execution). /** * What a tool's `execute` returns. The bare {@link ContentBlock}`[]` form is the @@ -214,17 +231,54 @@ export interface ToolResult { meta?: unknown } -/** One pending tool call, as it flows through the execution pipeline (`tools/pre-execute` → dispatch → `tools/post-execute`). */ -export interface ToolExecution { - callId: CallId - name: string - /** Parsed JSON arguments (unknown — tools validate their own input). */ - arguments: unknown +declare const toolExecutionTokenBrand: unique symbol + +/** Tokens minted in this module; a cast or JavaScript object cannot forge membership. */ +const executionTokens = new WeakSet() + +/** + * Opaque, immutable identity for one trip through the tool pipeline. Nested + * transports carry the enclosing execution's token instead of its live object, + * so observe-only result listeners can correlate calls without gaining a + * mutation path into an outer around-dispatch wrapper. + */ +export interface ToolExecutionToken { + readonly [toolExecutionTokenBrand]: true +} + +/** + * Caller-supplied description of one tool call. {@link ToolRegistry.execute} + * snapshots this input into a pipeline-owned {@link ToolExecution}; callers do + * not choose the execution token. + */ +export interface ToolExecutionInput { + readonly callId: CallId + readonly name: string + /** Losslessly JSON-serializable parsed arguments (tools validate their own schema). */ + readonly arguments: unknown /** The agent on whose behalf the call runs (set by the agent loop). */ - agent?: Agent + readonly agent?: Agent + /** + * Opaque token of the enclosing transport execution, when one exists. Code + * Mode sets this on SDK sub-dispatches so commit-style observers can wait for + * the outer `run_code` outcome without receiving its live mutable execution. + */ + readonly parent?: ToolExecutionToken signal?: AbortSignal } +/** + * One pending tool call inside the registry pipeline. Call identity, the + * registry-assigned {@link token}, and a lossless-JSON-validated, deep-frozen + * clone of the parsed arguments are immutable from the first policy listener onward, while an + * around-dispatch wrapper may set, replace, or remove only `signal`. The + * registry freezes the complete object before `tools/result` observers run. + */ +export interface ToolExecution extends ToolExecutionInput { + /** Registry-assigned identity shared with nested calls only as their opaque `parent` token. */ + readonly token: ToolExecutionToken +} + /** Structured error metadata for a failed tool call (alongside the model-facing text). */ export interface ToolErrorInfo { name: string @@ -255,7 +309,6 @@ export interface ToolExecutionResult { * text in `content` is always present; this is extra structure for code. */ error?: ToolErrorInfo - /** /** * Extra model-facing context a `tools/post-execute` listener attached for the * NEXT request (Claude Code's PostToolUse `additionalContext`). It is NOT part @@ -318,17 +371,28 @@ export type PostToolDecision = * is stringified. */ function errorMessage(error: unknown): string { - if (error instanceof Error) return error.message - if (typeof error === 'object' && error !== null - && 'message' in error && typeof error.message === 'string') { - return error.message + try { + if (error instanceof Error) return error.message + if (typeof error === 'object' && error !== null + && 'message' in error && typeof error.message === 'string') { + return error.message + } + return String(error) + } catch { + // A hostile thrown value can trap `instanceof`, property access, or string + // coercion. Error normalization is the outermost safety boundary, so its + // fallback must itself be total. + return '' } - return String(error) } /** Structured `{ name, code }` for a thrown HarnessError, else undefined. */ function errorInfo(error: unknown): ToolErrorInfo | undefined { - return error instanceof HarnessError ? { name: error.name, code: error.code } : undefined + try { + return error instanceof HarnessError ? { name: error.name, code: error.code } : undefined + } catch { + return undefined + } } /** How the registry presents its tools to the model (see {@link Config.mode}). */ @@ -338,9 +402,9 @@ export type ToolPresentationMode = 'native' | 'code' | 'both' export interface Config { /** * The presentation mode. `'native'` (the default) contributes every - * registered tool as a wire function definition — byte-for-byte today's - * behavior. `'code'` contributes exactly ONE wire tool, `run_code`, plus - * the generated `tools:sdk` prompt section declaring every other tool as a + * visible end capability as a native wire function definition. Under + * `'code'` this registry contributes exactly ONE wire tool, + * `run_code`, plus the generated `tools:sdk` prompt section declaring every other tool as a * TypeScript API the program calls. `'both'` contributes every native * definition AND `run_code` + the SDK section. Non-native modes require a * loaded `ctx.codeRuntime` whose `language` is `'typescript'` — a missing @@ -371,11 +435,27 @@ export interface ToolRestriction { deny?: string[] } +/** + * A monotonic execution guard evaluated after every `tools/pre-execute` + * listener and before the tool body. Returning a reason denies the call; + * returning `undefined` leaves it unchanged. Because guards have no allow + * result, listener ordering cannot turn a denial back into permission. + * @param execution - the identity-protected call after extensible pre-execute policy completed. + * @returns a final denial reason, or `undefined` to leave the call allowed. + */ +export type ToolGuard = (execution: Readonly) => string | undefined + +/** One guard registration; the wrapper preserves independent duplicate registrations. */ +interface ToolGuardRegistration { + guard: ToolGuard +} + /** * Tool registry (`ctx.tools`): tool plugins register definitions; the agent - * loop executes calls through the `tools/pre-execute` → `tools/execute` → - * `tools/post-execute` pipeline. The registry contributes its schemas into the - * system-prompt assembly — WHICH schemas is governed by its `mode` config + * loop executes calls through the `tools/pre-execute` → guards → + * `tools/execute` → `tools/post-execute` → `tools/result` pipeline. The + * registry contributes its schemas into the system-prompt assembly — WHICH + * schemas is governed by its `mode` config * (see {@link Config.mode}); under a non-native mode it also owns the reserved * `run_code` presentation transport and the `tools:sdk` prompt section. * @@ -402,6 +482,9 @@ export class ToolRegistry extends Service { private scoped = new Map>() /** Snapshot-at-registration restriction filters, per scope (see {@link restrict}). */ private restrictions = new Map() + /** Monotonic post-policy guards, split into global and per-agent layers. */ + private globalGuards = new Set() + private scopedGuards = new Map>() private readonly mode: ToolPresentationMode /** Reserved presentation transport, kept outside the filterable registration layers. */ private readonly codeTransport: ToolDefinition | undefined @@ -418,7 +501,7 @@ export class ToolRegistry extends Service { // the filterable global/scoped capability layers. this.codeTransport = this.mode === 'native' ? undefined - : createRunCodeTool(this, () => this.requireCodeRuntime()) + : deepFreeze(createRunCodeTool(this, () => this.requireCodeRuntime())) ctx.systemPrompt.tools(context => this.wireSchemas(context.scope)) if (this.mode !== 'native') { ctx.systemPrompt.section({ @@ -436,6 +519,11 @@ export class ToolRegistry extends Service { return renderToolsSdk(this.schemas(context.scope).filter(schema => schema.name !== RUN_CODE_NAME)) }, }) + // These are presentation infrastructure, not optional end capabilities. + // Protect them at their owner: assembly listeners may still transform + // ordinary tools and prose, but cannot silently leave Code Mode without + // its only wire transport or the SDK that tells the model how to use it. + ctx.systemPrompt.protect({ sections: ['tools:sdk'], tools: [RUN_CODE_NAME] }) } } @@ -495,8 +583,12 @@ export class ToolRegistry extends Service { * the shadowing feature, not an error; the global-duplicate message names * `agent.ctx` as the per-agent alternative), or if a non-native mode reserves * the `run_code` name for its presentation transport. The visible schema set - * flows into prompt assembly automatically. Disposed with the calling - * fiber. Emits `tools/change` on register/unregister. + * flows into prompt assembly automatically. Registration validates and + * clones the JSON parameters, copies scalar fields, binds each callback once + * to the caller's definition as its method receiver, and freezes the stored + * snapshot; later mutation or callback replacement on the input object does + * not rewrite the registry. Disposed with the calling fiber. Emits + * `tools/change` on register/unregister. * @param definition - the tool's schema plus its execute (and optional * presentation) functions. * @returns the disposer that unregisters the tool. The exact @@ -505,24 +597,52 @@ export class ToolRegistry extends Service { */ register(definition: ToolDefinition): () => Promise | void { const scope = scopeOf(this.ctx) - if (this.codeTransport !== undefined && definition.name === RUN_CODE_NAME) { + // A schema crosses the same model/log boundary as execution arguments. + // Validate BEFORE cloning because structuredClone silently turns some + // forbidden values (for example class instances) into plain records, then + // validate the detached value again to contain hostile getters that change + // between inspection and snapshotting. A frozen Map is still mutable, so + // deepFreeze alone is not a sufficient registration boundary. + if (!isJsonValue(definition.parameters)) { + throw new TypeError('tool parameters must be losslessly JSON-serializable') + } + const parameters = structuredClone(definition.parameters) + if (!isJsonValue(parameters)) { + throw new TypeError('tool parameters must be stable losslessly JSON-serializable data') + } + // Bind once so replacing a callback on the caller-owned definition after + // registration cannot change dispatch, while preserving the historical + // method receiver (`this === definition`) for callbacks that use it. + const execute = definition.execute.bind(definition) + const presentCall = definition.presentCall?.bind(definition) + const presentResult = definition.presentResult?.bind(definition) + const snapshot: ToolDefinition = deepFreeze({ + name: definition.name, + description: definition.description, + parameters, + execute, + ...definition.timeoutMs !== undefined ? { timeoutMs: definition.timeoutMs } : {}, + ...presentCall !== undefined ? { presentCall } : {}, + ...presentResult !== undefined ? { presentResult } : {}, + }) + if (this.codeTransport !== undefined && snapshot.name === RUN_CODE_NAME) { throw new Error(`tool name "${RUN_CODE_NAME}" is reserved for the Code Mode presentation transport and cannot be registered or shadowed`) } const dispose = this.ctx.effect(function* (this: ToolRegistry) { const layer = scope === undefined ? this.global : this.layerFor(scope) - if (layer.has(definition.name)) { + if (layer.has(snapshot.name)) { throw new Error(scope === undefined - ? `tool "${definition.name}" is already registered (for a per-agent variant, register through that agent's \`agent.ctx\` instead)` - : `tool "${definition.name}" is already registered in this scope`) + ? `tool "${snapshot.name}" is already registered (for a per-agent variant, register through that agent's \`agent.ctx\` instead)` + : `tool "${snapshot.name}" is already registered in this scope`) } - layer.set(definition.name, definition) + layer.set(snapshot.name, snapshot) // Yield the rollback BEFORE emitting `tools/change`: a generator effect // collects each yielded disposer before the next step runs, so a throwing // `tools/change` listener removes the tool instead of leaking it (a leak // would wedge the duplicate-name check until restart). The duplicate // throw above fires before any mutation — it leaks nothing. yield () => { - layer.delete(definition.name) + layer.delete(snapshot.name) // An emptied scope layer is dropped so a disposed scope leaves no // residue keyed by its (dead) key. if (scope !== undefined && layer.size === 0) this.scoped.delete(scope) @@ -604,6 +724,30 @@ export class ToolRegistry extends Service { return dispose } + /** + * Register a monotonic guard after the extensible `tools/pre-execute` + * waterfall. A plain-context guard applies globally; one registered through + * `agent.ctx` applies only to that agent. Any matching guard may deny by + * returning a reason, while no guard can force-allow a call another guard + * denied. The exact effect disposer is returned for ordered ownership and + * HMR cleanup. + * @param guard - synchronous check; a returned string denies the execution. + * @returns the exact disposer that unregisters the guard. + */ + guard(guard: ToolGuard): () => Promise | void { + const scope = scopeOf(this.ctx) + const registration = { guard } + const dispose = this.ctx.effect(function* (this: ToolRegistry) { + const layer = scope === undefined ? this.globalGuards : this.guardLayerFor(scope) + layer.add(registration) + yield () => { + layer.delete(registration) + if (scope !== undefined && layer.size === 0) this.scopedGuards.delete(scope) + } + }.bind(this), 'tools.guard()') + return dispose + } + /** The (created-on-demand) scoped layer for `scope`. */ private layerFor(scope: ScopeKey): Map { let layer = this.scoped.get(scope) @@ -614,6 +758,43 @@ export class ToolRegistry extends Service { return layer } + /** Get or create the guard layer for one agent scope. */ + private guardLayerFor(scope: ScopeKey): Set { + let layer = this.scopedGuards.get(scope) + if (layer === undefined) { + layer = new Set() + this.scopedGuards.set(scope, layer) + } + return layer + } + + /** First monotonic denial from the global then matching scoped guard layers. */ + private guardReason(exec: ToolExecution): string | undefined { + // Guards are policy, not another transform seam. The pipeline execution's + // identity and arguments are already protected; freeze a detached view so + // an untyped guard cannot replace the wrapper-mutable signal either. + const view: Readonly = Object.freeze({ ...exec }) + for (const { guard } of this.globalGuards) { + const reason = guard(view) + if (reason !== undefined) return this.assertGuardReason(reason) + } + if (exec.agent !== undefined) { + for (const { guard } of this.scopedGuards.get(exec.agent) ?? []) { + const reason = guard(view) + if (reason !== undefined) return this.assertGuardReason(reason) + } + } + return undefined + } + + /** Runtime boundary for JavaScript/casted guards: only strings can deny. */ + private assertGuardReason(reason: unknown): string { + if (typeof reason !== 'string') { + throw new TypeError(`tools.guard() must return a denial string or undefined, got ${typeof reason}`) + } + return reason + } + /** Whether every restriction registered for `scope` admits the global tool `name` (intersection semantics). */ private admits(scope: ScopeKey | undefined, name: string): boolean { if (scope === undefined) return true @@ -707,8 +888,9 @@ export class ToolRegistry extends Service { } /** - * Execute one tool call through the `tools/pre-execute` → `tools/execute` - * (around dispatch) → `tools/post-execute` pipeline. `pre-execute` is the gate + * Execute one tool call through the `tools/pre-execute` → guards → + * `tools/execute` (around dispatch) → `tools/post-execute` → `tools/result` + * pipeline. `pre-execute` is the extensible gate * (allow/deny), `tools/execute` wraps core dispatch (a timeout/retry/metrics * seam), and `post-execute` is the inspect/transform seam; core dispatch sits * as the base `next()` of the `tools/execute` waterfall. The whole thing is @@ -719,74 +901,177 @@ export class ToolRegistry extends Service { * tool is not registered (or not visible to the calling agent — a * restricted-away global is exactly as absent as a nonexistent one), the * result is an `isError` carrying a `UNKNOWN_TOOL` structured error. A thrown - * {@link HarnessError} surfaces its `{ name, code }` on the result. - * @param exec - the call to run (name, parsed arguments, caller agent, signal). + * {@link HarnessError} surfaces its `{ name, code }` on the result. Before + * the final observe-only notification, the authoritative outcome must survive + * a lossless JSON round trip; an invalid outcome is normalized to an error. + * Caller-owned arguments must survive lossless-JSON validation before and + * after cloning; a violation normalizes to an error before policy or dispatch. + * @param exec - the single-use call input; its identity is snapshotted and + * protected before policy runs. * @returns the final result after every waterfall; failures resolve as * `isError` results, never rejections. */ - async execute(exec: ToolExecution): Promise { + async execute(exec: ToolExecutionInput): Promise { + let execution: ToolExecution try { - // --- Gate: tools/pre-execute. A deny (or an ask, which degrades to deny - // until the permission system lands) skips dispatch entirely. The - // carrier keys the dispatch by exec.agent, so an `agent.ctx` listener - // gates only its own agent's calls (agent-less calls are subject-less). - const carrier = scopeTarget(this, exec.agent) - const decision = await this.ctx.waterfall( - carrier, 'tools/pre-execute', exec, - () => Promise.resolve({ kind: 'allow' }), - ) - if (decision.kind !== 'allow') { - // deny → isError. ask has no permission UI yet, so degrade to deny - // (FIXME(permissions)): a forthcoming permission system turns `ask` into - // a real prompt; today it is the conservative "not allowed". - const reason = decision.kind === 'deny' - ? decision.reason - : decision.reason ?? `tool "${exec.name}" requires approval (not yet supported)` - const denied: ToolExecutionResult = { - callId: exec.callId, - content: [{ type: 'text', text: `Error: ${reason}` }], - isError: true, - } - return await this.postExecute(exec, denied) - } - - // --- Around-dispatch: tools/execute. The base `next` is the dispatch- - // with-normalization thunk — the tool body's own try/catch turns a throw - // into an isError result so a wrapper (and post-execute) can inspect it; - // an unknown tool routes through the same catch. A `tools/execute` listener - // (e.g. a timeout plugin) wraps this thunk: it may mutate `exec` before - // delegating and inspect the normalized result after. Dispatched with the - // same carrier as the gate, so an `agent.ctx` wrapper wraps only its own - // agent's calls. --- - const result = await this.ctx.waterfall( - carrier, 'tools/execute', exec, - async (): Promise => { - try { - // Resolve through the CALLER's visible view ({@link get}): a scoped - // tool shadows its global name-twin for that agent, and a - // restricted-away global tool is exactly as absent as a nonexistent - // one — same UNKNOWN_TOOL result, no capability leak in the error. - const tool = this.get(exec.name, exec.agent) - if (!tool) throw new ToolNotFoundError(exec.name) - // Normalize the two `execute` return shapes: a bare ContentBlock[] (no - // meta) or a { content, meta } object (a tool attaching a private - // presentation payload). An array IS the content; the object carries it. - const returned = await tool.execute(exec.arguments, exec) - const content = Array.isArray(returned) ? returned : returned.content - const meta = Array.isArray(returned) ? undefined : returned.meta - return { callId: exec.callId, content, isError: false, ...meta !== undefined ? { meta } : {} } - } catch (error: unknown) { - return toolErrorResult(exec.callId, error) - } - }, - ) - - return await this.postExecute(exec, result) + execution = this.prepareExecution(exec) } catch (error: unknown) { - // Outer backstop: a throwing pre/post-execute listener (or the waterfall - // machinery) becomes an isError result, never a turn failure. - return toolErrorResult(exec.callId, error) + // Contract-violating non-JSON or non-cloneable arguments cannot enter a + // pipeline whose logged and executed forms must agree. Still publish one + // scoped final outcome, using an immutable identity shell, so result + // observers retain their every-call guarantee without seeing the invalid + // value. + execution = Object.freeze({ + token: createExecutionToken(), + callId: exec.callId, + name: exec.name, + arguments: undefined, + ...exec.agent !== undefined ? { agent: exec.agent } : {}, + ...isExecutionToken(exec.parent) ? { parent: exec.parent } : {}, + ...exec.signal !== undefined ? { signal: exec.signal } : {}, + }) + const result = toolErrorResult(execution.callId, error) + await this.notifyResult(execution, result) + return result } + let result: ToolExecutionResult + try { + // Validate the authoritative FINAL result, not merely the tool body's + // intermediate return. Post-policy may replace content or attach context, + // and every one of these fields is session-bound. Reject anything that + // cannot round-trip losslessly through the durable JSON log before the + // observe-only `tools/result` commit point sees success. + result = this.snapshotExecutionResult(execution, await this.executePipeline(execution)) + } catch (error: unknown) { + // Outer backstop: a throwing pre/post-execute listener, guard, or the + // waterfall machinery becomes an isError result, never a turn failure. + result = toolErrorResult(execution.callId, error) + } + await this.notifyResult(execution, result) + return result + } + + /** Snapshot one call into a shared pipeline object with immutable identity and mutable cancellation. */ + private prepareExecution(input: ToolExecutionInput): ToolExecution { + if (input.parent !== undefined && !isExecutionToken(input.parent)) { + throw new TypeError('tool execution parent must be a registry-minted opaque token') + } + if (!isJsonValue(input.arguments)) { + throw new TypeError('tool execution arguments must be losslessly JSON-serializable') + } + const args = structuredClone(input.arguments) + if (!isJsonValue(args)) { + throw new TypeError('tool execution arguments must be stable losslessly JSON-serializable data') + } + const execution: ToolExecution = { + token: createExecutionToken(), + callId: input.callId, + name: input.name, + arguments: deepFreeze(args), + ...input.agent !== undefined ? { agent: input.agent } : {}, + ...input.parent !== undefined ? { parent: input.parent } : {}, + ...input.signal !== undefined ? { signal: input.signal } : {}, + } + Object.defineProperties(execution, { + token: { value: execution.token, enumerable: true, writable: false, configurable: false }, + callId: { value: execution.callId, enumerable: true, writable: false, configurable: false }, + name: { value: execution.name, enumerable: true, writable: false, configurable: false }, + arguments: { value: execution.arguments, enumerable: true, writable: false, configurable: false }, + agent: { value: input.agent, enumerable: true, writable: false, configurable: false }, + parent: { value: input.parent, enumerable: true, writable: false, configurable: false }, + }) + if (input.signal !== undefined) { + Object.defineProperty(execution, 'signal', { + value: input.signal, + enumerable: true, + writable: true, + configurable: true, + }) + } + return execution + } + + /** Run the transformable pipeline; {@link execute} owns final normalization and notification. */ + private async executePipeline(exec: ToolExecution): Promise { + // --- Gate: tools/pre-execute. A deny (or an ask, which degrades to deny + // until the permission system lands) skips dispatch entirely. The + // carrier keys the dispatch by exec.agent, so an `agent.ctx` listener + // gates only its own agent's calls (agent-less calls are subject-less). + const carrier = scopeTarget(this, exec.agent) + const decision = await this.ctx.waterfall( + carrier, 'tools/pre-execute', exec, + () => Promise.resolve({ kind: 'allow' }), + ) + const denialReason = decision.kind === 'allow' + ? this.guardReason(exec) + : decision.kind === 'deny' + ? decision.reason + : decision.reason ?? `tool "${exec.name}" requires approval (not yet supported)` + if (denialReason !== undefined) { + // deny → isError. ask has no permission UI yet, so degrade to deny + // (FIXME(permissions)): a forthcoming permission system turns `ask` into + // a real prompt; today it is the conservative "not allowed". + const denied: ToolExecutionResult = { + callId: exec.callId, + content: [{ type: 'text', text: `Error: ${denialReason}` }], + isError: true, + } + return await this.postExecute(exec, denied) + } + + // --- Around-dispatch: tools/execute. The base `next` is the dispatch- + // with-normalization thunk — the tool body's own try/catch turns a throw + // into an isError result so a wrapper (and post-execute) can inspect it; + // an unknown tool routes through the same catch. A `tools/execute` listener + // (e.g. a timeout plugin) wraps this thunk: it may replace `exec.signal` + // before delegating and inspect the normalized result after. Dispatched with the + // same carrier as the gate, so an `agent.ctx` wrapper wraps only its own + // agent's calls. --- + const result = this.snapshotExecutionResult(exec, await this.ctx.waterfall( + carrier, 'tools/execute', exec, + async (): Promise => { + try { + // Resolve through the CALLER's visible view ({@link get}): a scoped + // tool shadows its global name-twin for that agent, and a + // restricted-away global tool is exactly as absent as a nonexistent + // one — same UNKNOWN_TOOL result, no capability leak in the error. + const tool = this.get(exec.name, exec.agent) + if (!tool) throw new ToolNotFoundError(exec.name) + // Normalize the two `execute` return shapes: a bare ContentBlock[] (no + // meta) or a { content, meta } object (a tool attaching a private + // presentation payload). An array IS the content; the object carries it. + const returned = await tool.execute(exec.arguments, exec) + const content = Array.isArray(returned) ? returned : returned.content + const meta = Array.isArray(returned) ? undefined : returned.meta + return { callId: exec.callId, content, isError: false, ...meta !== undefined ? { meta } : {} } + } catch (error: unknown) { + return toolErrorResult(exec.callId, error) + } + }, + )) + + return await this.postExecute(exec, result) + } + + /** Notify final-result observers without giving them a mutation/error channel into the outcome. */ + private async notifyResult(exec: ToolExecution, result: ToolExecutionResult): Promise { + // The pipeline is over: freeze the remaining mutable signal slot so every + // observer sees the SAME WeakMap-keyable execution without a mutation race. + Object.freeze(exec) + // postExecute clones every accepted result/decision before rebuilding the + // outcome; all error paths construct plain data. The final result is thus + // structurally cloneable before it reaches this observe-only boundary. + const snapshot = deepFreeze(structuredClone(result)) + const callbacks = this.ctx.events.dispatch('parallel', [ + scopeTarget(this, exec.agent), 'tools/result', exec, snapshot, + ]) + await Promise.all(callbacks.map(async (callback) => { + try { + await callback(exec, snapshot) + } catch (error: unknown) { + this.ctx.logger.warn(`tool "${exec.name}" (${exec.callId}): tools/result observer failed: ${errorMessage(error)}`) + } + })) } /** @@ -804,21 +1089,14 @@ export class ToolRegistry extends Service { // authoritative-call-id requirement and the "preserve the dispatched // isError/error" contract. The decision is the ONLY sanctioned channel for a // listener to change the outcome (block, or accept-with-replacement); the - // call id is always the authoritative `exec.callId`. `content` is copied into - // a fresh array so a listener's in-place `push`/`splice` on `result.content` - // cannot leak into the returned content either (the elements are the same - // references — the snapshot guards the array structure, not deep immutability). - const dispatched = { - callId: exec.callId, - content: [...result.content], - isError: result.isError, - ...result.error ? { error: result.error } : {}, - ...result.meta !== undefined ? { meta: result.meta } : {}, - } - const decision = await this.ctx.waterfall( + // call id is always the authoritative `exec.callId`. Deep cloning protects + // nested content, error, and meta data from in-place listener mutation. + const dispatched = this.snapshotExecutionResult(exec, result) + const decision = structuredClone(await this.ctx.waterfall( scopeTarget(this, exec.agent), 'tools/post-execute', exec, result, () => Promise.resolve({ kind: 'accept' }), - ) + )) + this.assertPostDecision(decision) const additionalContext = decision.additionalContext if (decision.kind === 'block') { return { @@ -835,6 +1113,74 @@ export class ToolRegistry extends Service { ...additionalContext ? { additionalContext } : {}, } } + + /** Validate and detach an around-dispatch result before policy can observe or mutate it. */ + private snapshotExecutionResult(exec: ToolExecution, value: unknown): ToolExecutionResult { + if (typeof value !== 'object' || value === null) { + throw new TypeError('tools/execute must return a ToolExecutionResult object') + } + const result = value as Partial + if (!Array.isArray(result.content) || typeof result.isError !== 'boolean') { + throw new TypeError('tools/execute must return a ToolExecutionResult with content[] and boolean isError') + } + if (result.callId !== exec.callId) { + throw new TypeError(`tools/execute returned callId "${String(result.callId)}" for authoritative call "${exec.callId}"`) + } + const candidate = { + callId: exec.callId, + content: result.content, + isError: result.isError, + ...result.error !== undefined ? { error: result.error } : {}, + ...result.additionalContext !== undefined ? { additionalContext: result.additionalContext } : {}, + ...result.meta !== undefined ? { meta: result.meta } : {}, + } + // Validate BEFORE cloning: structuredClone turns some forbidden exotic or + // class instances into plain objects, which would hide a lossy JSON + // boundary violation. Validate the detached clone again to contain hostile + // getters whose value changes between inspection and snapshotting. + if (!isJsonValue(candidate)) { + throw new TypeError('tools/execute must return a losslessly JSON-serializable ToolExecutionResult') + } + const snapshot = structuredClone(candidate) + if (!isJsonValue(snapshot)) { + throw new TypeError('tools/execute must return a stable losslessly JSON-serializable ToolExecutionResult') + } + return snapshot + } + + /** Reject malformed JavaScript/casted post decisions at the public event boundary. */ + private assertPostDecision(value: unknown): asserts value is PostToolDecision { + if (typeof value !== 'object' || value === null) { + throw new TypeError('tools/post-execute must return a PostToolDecision object') + } + const decision = value as Partial + switch (decision.kind) { + case 'accept': + if (decision.content !== undefined && !Array.isArray(decision.content)) { + throw new TypeError('tools/post-execute accept content must be an array') + } + return + case 'block': + if (!Array.isArray(decision.feedback)) { + throw new TypeError('tools/post-execute block feedback must be an array') + } + return + default: + throw new TypeError('tools/post-execute must return an accept or block decision') + } + } +} + +/** Mint a frozen, property-free correlation token whose identity is its value. */ +function createExecutionToken(): ToolExecutionToken { + const token = Object.freeze(Object.create(null)) as ToolExecutionToken + executionTokens.add(token) + return token +} + +/** Runtime counterpart of the opaque token type, including `undefined` input. */ +function isExecutionToken(value: unknown): value is ToolExecutionToken { + return typeof value === 'object' && value !== null && executionTokens.has(value) } function toolErrorResult(callId: ToolExecution['callId'], error: unknown): ToolExecutionResult { diff --git a/packages/core/tools/tests/code-mode.spec.ts b/packages/core/tools/tests/code-mode.spec.ts index 782447e7ec..da5725f10e 100644 --- a/packages/core/tools/tests/code-mode.spec.ts +++ b/packages/core/tools/tests/code-mode.spec.ts @@ -123,6 +123,23 @@ describe('mode-aware wire contribution', () => { expect(sdk?.text).not.toContain('run_code(args:') }) + it.each(['code', 'both'] as const)('restores Code Mode infrastructure after assembly listeners in mode %s', async (mode) => { + const { ctx, systemPrompt } = await setup({ mode }) + registerEcho(ctx) + ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { + const assembly = await next() + return { + ...assembly, + sections: assembly.sections.filter(section => section.name !== 'tools:sdk'), + tools: assembly.tools.filter(tool => tool.name !== RUN_CODE_NAME), + } + }, { prepend: true }) + + const assembly = await systemPrompt.assemble() + expect(assembly.sections.some(section => section.name === 'tools:sdk')).toBe(true) + expect(assembly.tools.some(tool => tool.name === RUN_CODE_NAME)).toBe(true) + }) + it("mode 'both' contributes every native schema plus run_code, and the SDK section", async () => { const { ctx, systemPrompt } = await setup({ mode: 'both' }) registerEcho(ctx) @@ -197,13 +214,40 @@ describe('mode-aware wire contribution', () => { expect(() => scope.ctx.tools.register(impostor)).toThrow(/reserved for the Code Mode presentation transport/) expect(() => ctx.tools.register(impostor)).toThrow(/reserved for the Code Mode presentation transport/) + expect(() => scope.ctx.systemPrompt.section({ name: 'tools:sdk', order: -999, text: 'malicious SDK' })) + .toThrow(/globally protected and cannot be shadowed/) expect(() => scope.ctx.tools.restrict({ allow: [RUN_CODE_NAME] })).toThrow(/cannot name reserved Code Mode presentation transport/) expect(() => scope.ctx.tools.restrict({ deny: [RUN_CODE_NAME] })).toThrow(/cannot name reserved Code Mode presentation transport/) + const transport = ctx.tools.get(RUN_CODE_NAME)! + expect(Object.isFrozen(transport)).toBe(true) + expect(Object.isFrozen(transport.parameters)).toBe(true) + expect(() => { transport.name = 'mutated_transport' }).toThrow(TypeError) + + const mutableSection = { name: 'scoped-note', order: 149, text: 'safe note' } + scope.ctx.systemPrompt.section(mutableSection) + mutableSection.name = 'tools:sdk' + mutableSection.text = 'mutated SDK' + const mutableTool = defineTool({ + name: 'scoped_safe', + description: 'Safe scoped tool.', + parameters: {}, + execute: () => Promise.resolve([{ type: 'text' as const, text: 'safe' }]), + }) + scope.ctx.tools.register(mutableTool) + mutableTool.name = RUN_CODE_NAME + mutableTool.description = 'Mutated transport impostor.' + const stored = ctx.tools.get('scoped_safe', agent)! + expect(Object.isFrozen(stored)).toBe(true) + expect(Object.isFrozen(stored.parameters)).toBe(true) + expect(() => { stored.name = RUN_CODE_NAME }).toThrow(TypeError) const assembly = await systemPrompt.assemble({ scope: agent }) const transports = assembly.tools.filter(tool => tool.name === RUN_CODE_NAME) expect(transports).toHaveLength(1) expect(transports[0]?.description).toContain('Execute a TypeScript program') + expect(assembly.sections.find(section => section.name === 'tools:sdk')?.text).not.toContain('mutated SDK') + expect(assembly.sections.find(section => section.name === 'scoped-note')?.text).toBe('safe note') + expect(assembly.sections.find(section => section.name === 'tools:sdk')?.text).toContain('scoped_safe(args:') expect(ctx.tools.get(RUN_CODE_NAME, agent)).toBe(ctx.tools.get(RUN_CODE_NAME)) expect(ctx.tools.knownNames(agent)).not.toContain(RUN_CODE_NAME) const result = await runCode(ctx, 'return 1', { agent }) @@ -306,6 +350,36 @@ describe('the run_code dispatch bridge', () => { expect(result.meta).toEqual({ logs: [{ source: 'console', level: 'log', text: 'saw echo:one' }], dispatches: 2 }) }) + it('exposes only an opaque parent token to nested result observers', async () => { + const { ctx, runtime } = await setup({ mode: 'code' }) + registerEcho(ctx) + runtime.behavior = async (request) => { + await request.bindings[0]!.functions.echo!({ value: 'nested' }) + return { logs: [], value: 'done' } + } + + // Model a timeout-style outer wrapper: it temporarily installs a signal, + // delegates, then restores the exact prior shape. A nested result observer + // is observe-only and must not receive the live outer execution object; + // freezing the correlation value it sees therefore cannot break restore. + ctx.on('tools/execute', async (exec, next) => { + if (exec.name !== RUN_CODE_NAME) return next() + const previous = exec.signal + exec.signal = new AbortController().signal + const result = await next() + if (previous === undefined) delete exec.signal + else exec.signal = previous + return result + }) + ctx.on('tools/result', (exec) => { + if (exec.parent !== undefined) Object.freeze(exec.parent) + }) + + const result = await runCode(ctx, 'await tools.echo({ value: "nested" })') + expect(result.isError).toBe(false) + expect(result.content).toEqual([{ type: 'text', text: 'done' }]) + }) + it('serializes Promise.all dispatches: tool executions never overlap, in submission order', async () => { const { ctx, runtime } = await setup({ mode: 'code' }) const intervals: [string, string][] = [] @@ -639,16 +713,17 @@ describe('the run_code dispatch bridge', () => { expect(events.filter(event => event.type === 'tool/code-dispatch')).toEqual([]) }) - it('logs the value the tool RECEIVED even when the tool mutates its arguments', async () => { + it('gives the tool and durable log the same immutable argument value', async () => { const { ctx, runtime } = await setup({ mode: 'code' }) const { agent, events } = fakeAgent() + let mutationSucceeded: boolean | undefined ctx.tools.register(defineTool({ name: 'mutator', - description: 'Mutates its own args object.', + description: 'Attempts to mutate its args object.', parameters: { list: { type: 'array', required: true } }, execute(args) { - args.list.push('injected-by-tool') - return Promise.resolve([{ type: 'text' as const, text: 'mutated' }]) + mutationSucceeded = Reflect.set(args.list, 1, 'injected-by-tool') + return Promise.resolve([{ type: 'text' as const, text: 'protected' }]) }, })) runtime.behavior = async (request) => { @@ -657,6 +732,7 @@ describe('the run_code dispatch bridge', () => { } const result = await runCode(ctx, 'program', { agent }) expect(result.isError).toBe(false) + expect(mutationSucceeded).toBe(false) const dispatch = events.find(event => event.type === 'tool/code-dispatch')?.data as SessionEventMap['tool/code-dispatch'] expect(dispatch.arguments).toEqual({ list: ['original'] }) }) diff --git a/packages/core/tools/tests/scoped.spec.ts b/packages/core/tools/tests/scoped.spec.ts index 86bdd1414a..cac4a7e29b 100644 --- a/packages/core/tools/tests/scoped.spec.ts +++ b/packages/core/tools/tests/scoped.spec.ts @@ -1,10 +1,10 @@ -import { describe, expect, it } from 'vitest' +import { describe, expect, it, vi } from 'vitest' import { Context } from 'cordis' import { createScope } from '@deepseek-ai/dsh-scope' import type { Scope } from '@deepseek-ai/dsh-scope' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' -import type { PreToolDecision, ToolDefinition, ToolExecution } from '@deepseek-ai/dsh-tools' +import type { PreToolDecision, ToolDefinition, ToolExecution, ToolExecutionToken } from '@deepseek-ai/dsh-tools' import type { Agent, AgentId } from '@deepseek-ai/dsh-agent' import { CallId } from '@deepseek-ai/dsh-llm' import type { ContentBlock } from '@deepseek-ai/dsh-llm' @@ -149,6 +149,11 @@ describe('restrict()', () => { expect(() => scope.ctx.tools.restrict({})).toThrow(/no-op/) expect(() => scope.ctx.tools.restrict({ allow: ['reall'] })).toThrow(/unknown tool "reall"; known tools for this scope: real/) expect(() => scope.ctx.tools.restrict({ deny: ['ghost', 'wraith'] })).toThrow(/unknown tools "ghost", "wraith"/) + + const emptyCtx = await mount() + const { scope: emptyScope } = await mintAgentScope(emptyCtx, 'empty') + expect(() => emptyScope.ctx.tools.restrict({ deny: ['ghost'] })) + .toThrow(/known tools for this scope: \(none\)/) }) }) @@ -170,4 +175,296 @@ describe('scoped execution dispatch', () => { expect(await run(ctx, 't')).toBe('ran:t') expect(seen).toEqual(['a']) }) + + it('applies scoped guards after pre-execute and unwinds duplicate registrations independently', async () => { + const ctx = await mount() + const { scope, key } = await mintAgentScope(ctx, 'a') + const other = { id: 'other' as AgentId } as Agent + let bodyCalls = 0 + ctx.tools.register({ + ...tool('t'), + execute: () => { + bodyCalls += 1 + return Promise.resolve([{ type: 'text', text: 'ran:t' }]) + }, + }) + let guardViewFrozen = false + const guard = (execution: Readonly): string => { + guardViewFrozen = Object.isFrozen(execution) && Object.isFrozen(execution.arguments) + return 'terminal policy' + } + const liftFirst = scope.ctx.tools.guard(guard) + scope.ctx.tools.guard(guard) + // Registered later and prepended outside every existing waterfall listener: + // it can force the extensible pre decision to allow, but cannot bypass the + // owner-level monotonic guard that runs after the waterfall. + scope.ctx.on('tools/pre-execute', () => Promise.resolve({ kind: 'allow' }), { prepend: true }) + + expect(await run(ctx, 't', key)).toBe('Error: terminal policy') + expect(guardViewFrozen).toBe(true) + expect(await run(ctx, 't', other)).toBe('ran:t') + expect(bodyCalls).toBe(1) + + await liftFirst() + expect(await run(ctx, 't', key)).toBe('Error: terminal policy') + await scope.dispose() + expect(await run(ctx, 't', key)).toBe('ran:t') + expect(bodyCalls).toBe(2) + }) + + it('composes global guards monotonically when one abstains and a later one denies', async () => { + const ctx = await mount() + let bodyCalls = 0 + ctx.tools.register({ + ...tool('t'), + execute: () => { + bodyCalls += 1 + return Promise.resolve([]) + }, + }) + ctx.tools.guard(() => undefined) + ctx.tools.guard(() => 'global denial') + + expect(await run(ctx, 't')).toBe('Error: global denial') + expect(bodyCalls).toBe(0) + }) + + it('protects call identity before policy and dispatch while leaving only signal mutable', async () => { + const ctx = await mount() + const { scope, key } = await mintAgentScope(ctx, 'a') + let safeCalls = 0 + let dangerCalls = 0 + let scopedResults = 0 + let safeArguments: unknown + ctx.tools.register({ + ...tool('safe'), + execute: (args) => { + safeCalls += 1 + safeArguments = args + return Promise.resolve([{ type: 'text', text: 'safe' }]) + }, + }) + ctx.tools.register({ + ...tool('danger'), + execute: () => { + dangerCalls += 1 + return Promise.resolve([{ type: 'text', text: 'danger' }]) + }, + }) + scope.ctx.tools.guard(exec => exec.name === 'danger' ? 'danger denied' : undefined) + ctx.on('tools/pre-execute', (exec, next) => { + expect(Reflect.set(exec, 'agent', undefined)).toBe(false) + expect(Reflect.set(exec, 'name', 'safe')).toBe(false) + expect(Reflect.set(exec.arguments as object, 'injected', true)).toBe(false) + return next() + }) + ctx.on('tools/execute', (exec, next) => { + expect(Reflect.set(exec, 'name', 'danger')).toBe(false) + return next() + }) + ctx.on('tools/post-execute', (exec, _result, next) => { + expect(Reflect.set(exec, 'agent', undefined)).toBe(false) + return next() + }) + scope.ctx.on('tools/result', () => { scopedResults += 1 }) + + expect(await run(ctx, 'danger', key)).toBe('Error: danger denied') + const callerArguments = { source: true } + const safeResult = await ctx.tools.execute({ + callId: CallId('safe-call'), + name: 'safe', + arguments: callerArguments, + agent: key, + }) + expect(safeResult.content[0]).toMatchObject({ text: 'safe' }) + expect(Object.isFrozen(callerArguments)).toBe(false) + expect(safeArguments).not.toBe(callerArguments) + expect(Object.isFrozen(safeArguments)).toBe(true) + expect(callerArguments).toEqual({ source: true }) + expect({ safeCalls, dangerCalls, scopedResults }).toEqual({ + safeCalls: 1, + dangerCalls: 0, + scopedResults: 2, + }) + }) + + it('normalizes non-cloneable arguments and still publishes one scoped final outcome', async () => { + const ctx = await mount() + const { scope, key } = await mintAgentScope(ctx, 'a') + let policyCalls = 0 + let bodyCalls = 0 + let scopedObserved = 0 + let globalObserved = 0 + ctx.tools.register({ + ...tool('t'), + execute: () => { + bodyCalls += 1 + return Promise.resolve([]) + }, + }) + ctx.on('tools/pre-execute', (_exec, next) => { + policyCalls += 1 + return next() + }) + let parent!: ToolExecutionToken + ctx.tools.register(tool('parent')) + const stopCapture = ctx.on('tools/pre-execute', (exec, next) => { + if (exec.name === 'parent') parent = exec.token + return next() + }) + await ctx.tools.execute({ callId: CallId('parent'), name: 'parent', arguments: {} }) + stopCapture() + policyCalls = 0 + const signal = new AbortController().signal + scope.ctx.on('tools/result', (exec, result) => { + scopedObserved += 1 + expect(exec.arguments).toBeUndefined() + expect(exec.parent).toBe(parent) + expect(exec.signal).toBe(signal) + expect(Object.isFrozen(exec)).toBe(true) + expect(result.isError).toBe(true) + }) + ctx.on('tools/result', () => { globalObserved += 1 }) + const callerArguments = { invalid: () => undefined } + + const scopedResult = await ctx.tools.execute({ + callId: CallId('non-cloneable'), + name: 't', + arguments: callerArguments, + agent: key, + parent, + signal, + }) + const subjectlessResult = await ctx.tools.execute({ + callId: CallId('non-cloneable-subjectless'), + name: 't', + arguments: { invalid: () => undefined }, + }) + expect(scopedResult.isError).toBe(true) + expect(scopedResult.content[0]?.type === 'text' && scopedResult.content[0].text).toContain('losslessly JSON-serializable') + expect(subjectlessResult.isError).toBe(true) + expect({ policyCalls, bodyCalls, scopedObserved, globalObserved }).toEqual({ + policyCalls: 0, + bodyCalls: 0, + scopedObserved: 1, + globalObserved: 2, + }) + expect(Object.isFrozen(callerArguments)).toBe(false) + expect(callerArguments.invalid).toBeTypeOf('function') + }) + + it('rejects a forged mutable parent token without exposing it to final observers', async () => { + const ctx = await mount() + ctx.tools.register(tool('t')) + const forged = { mutable: true } as unknown as ToolExecutionToken + let observedParent: ToolExecutionToken | undefined = forged + ctx.on('tools/result', (exec) => { observedParent = exec.parent }) + + const result = await ctx.tools.execute({ + callId: CallId('forged-parent'), name: 't', arguments: {}, parent: forged, + }) + + expect(result.isError).toBe(true) + expect(result.content).toEqual([{ + type: 'text', text: 'Error: tool execution parent must be a registry-minted opaque token', + }]) + expect(observedParent).toBeUndefined() + expect(Object.isFrozen(forged)).toBe(false) + }) + + it.each([ + ['Map', new Map([['mutable', true]])], + ['class instance', new (class Arguments { value = 1 })()], + ])('rejects cloneable non-JSON arguments (%s) before policy or dispatch', async (_kind, argumentsValue) => { + const ctx = await mount() + let policyCalls = 0 + let bodyCalls = 0 + let observed = 0 + ctx.tools.register({ + ...tool('t'), + execute: () => { + bodyCalls += 1 + return Promise.resolve([]) + }, + }) + ctx.on('tools/pre-execute', (_exec, next) => { + policyCalls += 1 + return next() + }) + ctx.on('tools/result', (exec, result) => { + observed += 1 + expect(exec.arguments).toBeUndefined() + expect(result.isError).toBe(true) + }) + + const result = await ctx.tools.execute({ + callId: CallId('bad-arguments'), name: 't', arguments: argumentsValue, + }) + + expect(result.isError).toBe(true) + expect(result.content).toEqual([{ + type: 'text', text: 'Error: tool execution arguments must be losslessly JSON-serializable', + }]) + expect({ policyCalls, bodyCalls, observed }).toEqual({ policyCalls: 0, bodyCalls: 0, observed: 1 }) + }) + + it('rejects arguments that change to non-JSON data while being snapshotted', async () => { + const ctx = await mount() + ctx.tools.register(tool('t')) + let reads = 0 + const argumentsValue = Object.defineProperty({}, 'value', { + enumerable: true, + get: () => ++reads === 1 ? 'safe' : new Map([['mutable', true]]), + }) + + const result = await ctx.tools.execute({ + callId: CallId('unstable-arguments'), name: 't', arguments: argumentsValue, + }) + + expect(result).toEqual({ + callId: CallId('unstable-arguments'), + content: [{ + type: 'text', text: 'Error: tool execution arguments must be stable losslessly JSON-serializable data', + }], + isError: true, + }) + }) + + it('notifies every tools/result observer with the frozen final outcome and contains failures', async () => { + const ctx = await mount() + const { scope, key } = await mintAgentScope(ctx, 'a') + ctx.tools.register(tool('t')) + const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => ctx.logger) + const seen: boolean[] = [] + const dispatchModes: string[] = [] + ctx.on('internal/dispatch', (mode, name) => { + if (name === 'tools/result') dispatchModes.push(mode) + }) + ctx.on('tools/execute', async (exec, next) => { + await next() + return { + callId: exec.callId, + content: [{ type: 'text', text: 'outer failure' }], + isError: true, + } + }, { prepend: true }) + scope.ctx.on('tools/result', (_exec, result) => { + expect(Object.isFrozen(_exec)).toBe(true) + expect(Object.isFrozen(_exec.arguments)).toBe(true) + expect(Object.isFrozen(result)).toBe(true) + expect(Object.isFrozen(result.content)).toBe(true) + seen.push(result.isError) + }) + ctx.on('tools/result', () => { + throw { toString: () => { throw new Error('coercion trap') } } + }) + ctx.on('tools/result', (_exec, result) => { seen.push(result.isError) }) + + const result = await ctx.tools.execute({ callId: CallId('final'), name: 't', arguments: {}, agent: key }) + expect(result).toMatchObject({ isError: true, content: [{ type: 'text', text: 'outer failure' }] }) + expect(seen).toEqual([true, true]) + expect(dispatchModes).toEqual(['parallel']) + expect(warn).toHaveBeenCalledOnce() + expect(String(warn.mock.calls[0]?.[0])).toContain('') + }) }) diff --git a/packages/core/tools/tests/tools.spec.ts b/packages/core/tools/tests/tools.spec.ts index 4cea334552..d32b349f93 100644 --- a/packages/core/tools/tests/tools.spec.ts +++ b/packages/core/tools/tests/tools.spec.ts @@ -5,7 +5,7 @@ import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry, { defineTool, schemaSpecToJsonSchema, validateArgs, ToolArgsError, ToolNotFoundError, type InferArgs, type SchemaSpec, type PreToolDecision, type PostToolDecision, - type ToolExecution, type ToolExecutionResult, + type ToolExecution, type ToolExecutionResult, type ToolGuard, } from '@deepseek-ai/dsh-tools' async function setup() { @@ -113,6 +113,53 @@ describe('ToolRegistry', () => { expect('meta' in result).toBe(false) }) + it('normalizes a contract-violating non-cloneable result before final notification', async () => { + const ctx = await setup() + let observedError: boolean | undefined + ctx.on('tools/result', (_exec, result) => { observedError = result.isError }) + ctx.tools.register({ + ...echoTool, + name: 'bad-meta', + async execute() { + return { content: [], meta: () => undefined } + }, + }) + + const result = await ctx.tools.execute({ + callId: CallId('bad-meta'), name: 'bad-meta', arguments: {}, + }) + expect(result.isError).toBe(true) + expect(result.content[0]?.type === 'text' && result.content[0].text).toContain('Error:') + expect(observedError).toBe(true) + }) + + it('normalizes a result that changes to non-JSON data while being snapshotted', async () => { + const ctx = await setup() + ctx.tools.register(echoTool) + let reads = 0 + const hostileBlock = Object.defineProperty({ type: 'text' }, 'text', { + enumerable: true, + get: () => ++reads === 1 ? 'safe' : new Map([['mutable', true]]), + }) + ctx.on('tools/execute', async exec => ({ + callId: exec.callId, + content: [hostileBlock], + isError: false, + }) as unknown as ToolExecutionResult) + + const result = await ctx.tools.execute({ + callId: CallId('unstable-result'), name: 'echo', arguments: {}, + }) + + expect(result).toEqual({ + callId: CallId('unstable-result'), + content: [{ + type: 'text', text: 'Error: tools/execute must return a stable losslessly JSON-serializable ToolExecutionResult', + }], + isError: true, + }) + }) + it('returns isError results for unknown tools and throwing tools', async () => { const ctx = await setup() ctx.tools.register({ @@ -134,6 +181,28 @@ describe('ToolRegistry', () => { expect(thrown.content[0]).toMatchObject({ text: 'Error: exploded' }) }) + it('normalizes a hostile thrown value whose inspection and coercion both throw', async () => { + const ctx = await setup() + ctx.tools.register({ + ...echoTool, + name: 'hostile-throw', + async execute() { + throw new Proxy({}, { + getPrototypeOf: () => { throw new Error('prototype trap') }, + has: () => { throw new Error('has trap') }, + get: () => { throw new Error('get trap') }, + }) + }, + }) + + await expect(ctx.tools.execute({ + callId: CallId('hostile'), name: 'hostile-throw', arguments: {}, + })).resolves.toMatchObject({ + isError: true, + content: [{ type: 'text', text: 'Error: ' }], + }) + }) + it('ToolNotFoundError carries the tool name and a stable code', async () => { const { HarnessError } = await import('@deepseek-ai/dsh-llm') const err = new ToolNotFoundError('ghost') @@ -158,6 +227,25 @@ describe('ToolRegistry', () => { expect(result.content[0]).toMatchObject({ text: 'Error: denied by policy' }) }) + it('rejects a JavaScript guard that returns an async/non-string decision', async () => { + const ctx = await setup() + let bodyCalls = 0 + ctx.tools.register({ + ...echoTool, + async execute() { + bodyCalls += 1 + return [] + }, + }) + ctx.tools.guard((() => Promise.resolve('late denial')) as unknown as ToolGuard) + + const result = await ctx.tools.execute({ callId: CallId('bad-guard'), name: 'echo', arguments: {} }) + expect(result.isError).toBe(true) + expect(result.content[0]?.type === 'text' && result.content[0].text) + .toContain('tools.guard() must return') + expect(bodyCalls).toBe(0) + }) + it('an ask decision degrades to deny until the permission system lands', async () => { const ctx = await setup() ctx.tools.register(echoTool) @@ -233,7 +321,7 @@ describe('ToolRegistry', () => { expect(result.additionalContext).toMatchObject({ content: [{ text: 'fyi' }], source: { kind: 'plugin', plugin: 'test' } }) }) - it('a post-execute listener mutating the result object cannot corrupt callId/isError/error', async () => { + it('a post-execute listener cannot mutate any nested part of the dispatched result', async () => { // The decision is the ONLY sanctioned channel to change the outcome. A // listener that reaches in and mutates the passed result reference (flipping // isError, rewriting callId, attaching a bogus error) must NOT affect what @@ -241,23 +329,45 @@ describe('ToolRegistry', () => { // the waterfall and rebuilds from the snapshot + decision. const ctx = await setup() ctx.tools.register(echoTool) + ctx.on('tools/execute', async (_exec, next) => { + await next() + return { + callId: CallId('c1'), + content: [{ type: 'text', text: 'original' }], + isError: true, + error: { name: 'OriginalError', code: 'ORIGINAL' }, + meta: { nested: { label: 'original' } }, + } + }) ctx.on('tools/post-execute', async (_exec, result, next) => { - const mutable = result as { callId: string; isError: boolean; error?: unknown; content: unknown[] } + const mutable = result as { + callId: string + isError: boolean + error?: { name: string; code: string } + content: { type: 'text'; text: string }[] + meta?: { nested: { label: string } } + } mutable.callId = 'hijacked' - mutable.isError = true - mutable.error = { name: 'Evil', code: 'EVIL' } + mutable.isError = false + if (mutable.error) { + mutable.error.name = 'Evil' + mutable.error.code = 'EVIL' + } + mutable.content[0]!.text = 'MUTATED' mutable.content.push({ type: 'text', text: 'INJECTED' }) // in-place array mutation + if (mutable.meta) mutable.meta.nested.label = 'MUTATED' return next() // delegate to the default accept — no decision-level override }) const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'echo', arguments: { text: 'hi' } }) expect(result.callId).toBe(CallId('c1')) // authoritative exec.callId, not 'hijacked' - expect(result.isError).toBe(false) // the real (successful) dispatch outcome - expect(result.error).toBeUndefined() // no listener-injected error + expect(result.isError).toBe(true) + expect(result.error).toEqual({ name: 'OriginalError', code: 'ORIGINAL' }) expect(result.content).toHaveLength(1) // the in-place push did not leak in - expect(result.content[0]).toMatchObject({ text: 'hi' }) + expect(result.content[0]).toMatchObject({ text: 'original' }) expect(result.content.some(b => (b as { text?: string }).text === 'INJECTED')).toBe(false) + expect(result.meta).toEqual({ nested: { label: 'original' } }) }) it('composes pre + post waterfalls around dispatch (sandbox-wrap pattern)', async () => { @@ -416,6 +526,109 @@ describe('ToolRegistry', () => { expect(result.content[0]).toMatchObject({ text: 'short-circuited' }) }) + it('preserves additionalContext supplied by an around-dispatch result', async () => { + const ctx = await setup() + ctx.tools.register(echoTool) + ctx.on('tools/execute', async exec => ({ + callId: exec.callId, + content: [{ type: 'text', text: 'short-circuited with context' }], + isError: false, + additionalContext: { + content: [{ type: 'text', text: 'from around dispatch' }], + source: { kind: 'plugin', plugin: 'test' }, + }, + })) + + const result = await ctx.tools.execute({ + callId: CallId('around-context'), name: 'echo', arguments: {}, + }) + expect(result.additionalContext).toEqual({ + content: [{ type: 'text', text: 'from around dispatch' }], + source: { kind: 'plugin', plugin: 'test' }, + }) + }) + + it('normalizes malformed tools/execute results instead of treating them as success', async () => { + const ctx = await setup() + ctx.tools.register(echoTool) + let observedError: boolean | undefined + ctx.on('tools/execute', async (_exec, next) => { + await next() + return {} as ToolExecutionResult + }) + ctx.on('tools/result', (_exec, result) => { observedError = result.isError }) + + const result = await ctx.tools.execute({ callId: CallId('malformed'), name: 'echo', arguments: {} }) + expect(result.isError).toBe(true) + expect(result.content[0]).toMatchObject({ + text: 'Error: tools/execute must return a ToolExecutionResult with content[] and boolean isError', + }) + expect(observedError).toBe(true) + }) + + it.each([ + { + name: 'non-object result', + replacement: null, + message: 'tools/execute must return a ToolExecutionResult object', + }, + { + name: 'wrong call id', + replacement: { callId: CallId('other'), content: [], isError: false }, + message: 'tools/execute returned callId "other" for authoritative call "malformed-shape"', + }, + ])('normalizes a tools/execute $name', async ({ replacement, message }) => { + const ctx = await setup() + ctx.tools.register(echoTool) + ctx.on('tools/execute', async () => replacement as ToolExecutionResult) + + const result = await ctx.tools.execute({ + callId: CallId('malformed-shape'), name: 'echo', arguments: {}, + }) + expect(result.isError).toBe(true) + expect(result.content[0]).toMatchObject({ text: `Error: ${message}` }) + }) + + it('normalizes malformed tools/post-execute decisions', async () => { + const ctx = await setup() + ctx.tools.register(echoTool) + ctx.on('tools/post-execute', async () => ({ kind: 'accept', content: 'not blocks' }) as unknown as PostToolDecision) + + const result = await ctx.tools.execute({ callId: CallId('malformed-post'), name: 'echo', arguments: {} }) + expect(result.isError).toBe(true) + expect(result.content[0]).toMatchObject({ + text: 'Error: tools/post-execute accept content must be an array', + }) + }) + + it.each([ + { + name: 'non-object decision', + replacement: null, + message: 'tools/post-execute must return a PostToolDecision object', + }, + { + name: 'block without feedback blocks', + replacement: { kind: 'block', feedback: 'not blocks' }, + message: 'tools/post-execute block feedback must be an array', + }, + { + name: 'unknown decision kind', + replacement: { kind: 'defer' }, + message: 'tools/post-execute must return an accept or block decision', + }, + ])('normalizes a tools/post-execute $name', async ({ replacement, message }) => { + const ctx = await setup() + ctx.tools.register(echoTool) + ctx.on('tools/post-execute', async () => replacement as unknown as PostToolDecision) + + const result = await ctx.tools.execute({ + callId: CallId('malformed-post-shape'), name: 'echo', arguments: {}, + }) + expect(result.isError).toBe(true) + expect(result.content[0]).toMatchObject({ text: `Error: ${message}` }) + }) + it('returns an isError result when a tools/execute listener throws', async () => { const ctx = await setup() ctx.tools.register(echoTool) @@ -493,6 +706,61 @@ describe('ToolRegistry', () => { }]) }) + it.each([ + ['Map', new Map([['mutable', true]])], + ['class instance', new (class Parameters { value = 1 })()], + ])('rejects cloneable non-JSON tool parameters (%s) without registry residue', async (_kind, parameters) => { + const ctx = await setup() + const definition = { + ...echoTool, + name: 'invalid-parameters', + parameters, + } as unknown as typeof echoTool + + expect(() => ctx.tools.register(definition)).toThrow( + 'tool parameters must be losslessly JSON-serializable', + ) + expect(ctx.tools.get('invalid-parameters')).toBeUndefined() + }) + + it('rejects tool parameters that change to non-JSON data while being snapshotted', async () => { + const ctx = await setup() + let reads = 0 + const parameters = Object.defineProperty({}, 'properties', { + enumerable: true, + get: () => ++reads === 1 ? {} : new Map([['mutable', true]]), + }) + + expect(() => ctx.tools.register({ + ...echoTool, + name: 'unstable-parameters', + parameters, + })).toThrow('tool parameters must be stable losslessly JSON-serializable data') + expect(ctx.tools.get('unstable-parameters')).toBeUndefined() + }) + + it('snapshots callbacks while preserving their registration-time method receiver', async () => { + const ctx = await setup() + const receivers: object[] = [] + const definition = { + ...echoTool, + name: 'callback-snapshot', + async execute() { + receivers.push(this) + return [{ type: 'text' as const, text: 'original' }] + }, + } + ctx.tools.register(definition) + definition.execute = async () => [{ type: 'text' as const, text: 'replacement' }] + + const result = await ctx.tools.execute({ + callId: CallId('callback-snapshot'), name: definition.name, arguments: {}, + }) + + expect(receivers).toEqual([definition]) + expect(result.content).toEqual([{ type: 'text', text: 'original' }]) + }) + it('rejects duplicate names and unregisters on fiber dispose (HMR safety)', async () => { const ctx = await setup() ctx.tools.register(echoTool) diff --git a/packages/fs/tool-fs/tests/fs-tools.e2e.ts b/packages/fs/tool-fs/tests/fs-tools.e2e.ts index da5412530d..a270e7c6d8 100644 --- a/packages/fs/tool-fs/tests/fs-tools.e2e.ts +++ b/packages/fs/tool-fs/tests/fs-tools.e2e.ts @@ -64,7 +64,7 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)('fs tools with-key smoke', () => const sessionDir = await mkdtemp(join(tmpdir(), 'dsh-fs-e2e-session-')) try { ctx = await fsHarness(configDir, SYSTEM) - const handle = ctx.agents.create({ + const handle = await ctx.agents.create({ agentId: AgentId('fs-e2e-cwd'), sessionId: SessionId(`fs-e2e-cwd-${Date.now()}`), meta: { cwd: sessionDir }, diff --git a/packages/fs/tool-fs/tests/tools.spec.ts b/packages/fs/tool-fs/tests/tools.spec.ts index 53f912cce2..c17bd875ba 100644 --- a/packages/fs/tool-fs/tests/tools.spec.ts +++ b/packages/fs/tool-fs/tests/tools.spec.ts @@ -164,11 +164,10 @@ describe('read tool', () => { expect(text(result)).toContain('offset must be a positive integer') }) - it('rejects a fractional or NaN offset, and a zero/negative limit', async () => { + it('rejects a fractional offset and a zero/negative limit', async () => { const { ctx } = await setup() for (const args of [ { file_path: 'a.txt', offset: 1.5 }, - { file_path: 'a.txt', offset: Number.NaN }, { file_path: 'a.txt', limit: 0 }, { file_path: 'a.txt', limit: -3 }, ]) { @@ -178,6 +177,13 @@ describe('read tool', () => { } }) + it('rejects a non-JSON numeric offset before tool-specific validation', async () => { + const { ctx } = await setup() + const result = await call(ctx, 'read', { file_path: 'a.txt', offset: Number.NaN }) + expect(result.isError).toBe(true) + expect(text(result)).toContain('tool execution arguments must be losslessly JSON-serializable') + }) + it('rejects a limit above the cap', async () => { const { ctx } = await setup() const result = await call(ctx, 'read', { file_path: 'a.txt', limit: 99999 }) diff --git a/packages/hooks/hooks-claude/tests/coverage.spec.ts b/packages/hooks/hooks-claude/tests/coverage.spec.ts index f06cdcf6b4..7feb46df05 100644 --- a/packages/hooks/hooks-claude/tests/coverage.spec.ts +++ b/packages/hooks/hooks-claude/tests/coverage.spec.ts @@ -448,7 +448,7 @@ describe('hooks-claude coverage — continue:false, context arm, no-cwd', () => const ctx = await harness(path, adapter) // NB: no projectDir // The factory create() path honors meta.cwd (the plain agentLoop.create() does not). const { SessionId } = await import('@deepseek-ai/dsh-session') - const handle = ctx.agents.create({ agentId: AgentId('a1'), sessionId: SessionId('s1'), meta: { cwd: workspace }, agentOptions: { model: 'mock' } }) + const handle = await ctx.agents.create({ agentId: AgentId('a1'), sessionId: SessionId('s1'), meta: { cwd: workspace }, agentOptions: { model: 'mock' } }) handle.agent.send([{ type: 'text', text: 'go' }]) await waitForIdle(ctx, handle.agent as ReactLoopAgent) expect(events(handle.agent as ReactLoopAgent).some(e => e.type === 'context/message' @@ -613,7 +613,7 @@ describe('hooks-claude coverage — hook runs in the session cwd, not the server ctx.tools.register(defineTool({ name: 'echo', description: 'e', parameters: {}, async execute() { return [{ type: 'text', text: 'ok' }] } })) const { SessionId } = await import('@deepseek-ai/dsh-session') - const handle = ctx.agents.create({ agentId: AgentId('a1'), sessionId: SessionId('s1'), meta: { cwd: sessionDir }, agentOptions: { model: 'mock' } }) + const handle = await ctx.agents.create({ agentId: AgentId('a1'), sessionId: SessionId('s1'), meta: { cwd: sessionDir }, agentOptions: { model: 'mock' } }) handle.agent.send([{ type: 'text', text: 'go' }]) await waitForIdle(ctx, handle.agent as ReactLoopAgent) @@ -649,7 +649,7 @@ describe('hooks-claude coverage — hook runs in the session cwd, not the server // Register a live child on its own session cwd; emit subagent/end with its id. const { SessionId } = await import('@deepseek-ai/dsh-session') - const childHandle = ctx.agents.create({ agentId: AgentId('child-stop'), sessionId: SessionId('child-stop-session'), meta: { cwd: childDir }, agentOptions: { model: 'mock' } }) + const childHandle = await ctx.agents.create({ agentId: AgentId('child-stop'), sessionId: SessionId('child-stop-session'), meta: { cwd: childDir }, agentOptions: { model: 'mock' } }) ctx.emit('subagent/end', { provider: 'inproc', id: childHandle.agent.id, stopReason: 'completed' }) await waitFor(() => existsSync(marker)) diff --git a/packages/hooks/hooks-codex/tests/coverage.spec.ts b/packages/hooks/hooks-codex/tests/coverage.spec.ts index c83137df53..774b308fa1 100644 --- a/packages/hooks/hooks-codex/tests/coverage.spec.ts +++ b/packages/hooks/hooks-codex/tests/coverage.spec.ts @@ -553,7 +553,7 @@ describe('hooks-codex coverage — decision mapping paths', () => { ctx.llm.registerAdapter(['mock'], adapter) ctx.tools.register(defineTool({ name: 'Bash', description: 'b', parameters: { command: { type: 'string' } }, async execute() { return [{ type: 'text', text: 'ok' }] } })) const { SessionId } = await import('@deepseek-ai/dsh-session') - const handle = ctx.agents.create({ agentId: AgentId('a1'), sessionId: SessionId('s1'), meta: { cwd: sessionDir }, agentOptions: { model: 'mock' } }) + const handle = await ctx.agents.create({ agentId: AgentId('a1'), sessionId: SessionId('s1'), meta: { cwd: sessionDir }, agentOptions: { model: 'mock' } }) handle.agent.send([{ type: 'text', text: 'go' }]) await waitForIdle(ctx, handle.agent as ReactLoopAgent) expect(existsSync(marker)).toBe(true) diff --git a/packages/subagent/subagent-fork/src/index.ts b/packages/subagent/subagent-fork/src/index.ts index de650fa4cd..3b9243aa2e 100644 --- a/packages/subagent/subagent-fork/src/index.ts +++ b/packages/subagent/subagent-fork/src/index.ts @@ -32,7 +32,7 @@ export const name = 'subagent-fork' // per-run structured runtime gates its capture-tool registration on `tools` // itself, so this backend's apply timing (and the delegation tool's position // in the model-visible tool list) is unchanged by structured output. -export const inject = ['subagents', 'agents'] +export const inject = ['subagents'] /** Config: the registry name to register the provider under. */ export interface Config { @@ -77,7 +77,6 @@ class ForkProvider implements SubagentProvider { start(request: SubagentStartRequest) { const seed = completedTurnPrefix(request.parent) return startInProcessRun(this.ctx, request, { - providerName: this.name, // Only pass a seed when there's a completed turn to inherit; an empty seed // is equivalent to a fresh child, so omit it to keep the session unseeded. ...seed.length > 0 ? { seed } : {}, diff --git a/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts b/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts index 5356eba6e0..31a4f4c895 100644 --- a/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts +++ b/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts @@ -200,12 +200,12 @@ describe('dsh-subagent-fork', () => { it('has the namespace-plugin export shape (no stray default)', () => { expect('default' in fork).toBe(false) expect(fork.name).toBe('subagent-fork') - expect(fork.inject).toEqual(['subagents', 'agents']) + expect(fork.inject).toEqual(['subagents']) const loader = Object.create(Loader.prototype) as Loader const unwrapped = loader.unwrapExports(fork) as Record expect(unwrapped).toBe(fork) expect(unwrapped.name).toBe('subagent-fork') - expect(unwrapped.inject).toEqual(['subagents', 'agents']) + expect(unwrapped.inject).toEqual(['subagents']) expect(typeof unwrapped.apply).toBe('function') }) }) diff --git a/packages/subagent/subagent-inprocess/src/index.ts b/packages/subagent/subagent-inprocess/src/index.ts index cd0202f1bb..61867e1b39 100644 --- a/packages/subagent/subagent-inprocess/src/index.ts +++ b/packages/subagent/subagent-inprocess/src/index.ts @@ -7,16 +7,18 @@ * a prefix of the parent's log); everything downstream — drive the child, read * its final output, map the stop reason, dispose — is identical and lives here. * - * This package owns no provider and registers nothing; it is a pure library the - * backend packages depend on, so neither backend needs to know about the other. + * This package declares no provider and performs no import-time registration; + * it is a library the backend packages depend on, so neither backend needs to + * know about the other. Each accepted run does install one provider-owned + * effect for structured-concurrency cleanup. * * @module @deepseek-ai/dsh-subagent-inprocess */ import { randomUUID } from 'node:crypto' -import type { Context } from 'cordis' +import type { Context, Fiber } from 'cordis' import { AgentId, type Agent, type AgentHandle, type AgentOptions } from '@deepseek-ai/dsh-agent' -import { SessionId, type SessionEvent, type TurnEndReason } from '@deepseek-ai/dsh-session' +import { SessionId, isJsonValue, type SessionEvent, type TurnEndReason } from '@deepseek-ai/dsh-session' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import { assertSupportedOutputSchema } from '@deepseek-ai/dsh-tools' import type { SubagentResult, SubagentRun, SubagentStartRequest, SubagentStopReason } from '@deepseek-ai/dsh-subagent' @@ -86,8 +88,6 @@ function toStopReason(reason: TurnEndReason | undefined): SubagentStopReason { /** Extra inputs the spawn/fork backends supply to {@link startInProcessRun}. */ export interface InProcessRunOptions { - /** The provider name (`spawn`/`fork`), for error context only. */ - readonly providerName: string /** * The child session's seed: a balanced, contiguous-from-0 prefix of the * parent's log (FORK), or `undefined` for a fresh child (SPAWN). @@ -95,6 +95,12 @@ export interface InProcessRunOptions { readonly seed?: SessionEvent[] } +/** Dispose a run-owner fiber and follow an already-started unload to quiescence. */ +async function quiesceFiber(fiber: Fiber): Promise { + await Promise.resolve(fiber.dispose()) + while (fiber.inertia !== undefined) await fiber.inertia +} + /** * Start an in-process child agent for `request` and return a {@link SubagentRun}. * @@ -108,9 +114,10 @@ export interface InProcessRunOptions { * * Throws {@link SubagentDepthError} before creating anything when the child's * depth (parent depth + 1) would exceed `request.maxDepth`. - * @param ctx - the context whose `agents` factory creates and owns the child. + * @param ctx - the provider context that owns the live run as a second + * structured-concurrency boundary alongside the parent agent. * @param request - the start request (prompt, parent, signal, per-child options). - * @param options - the backend's inputs: provider name plus the optional seed. + * @param options - the backend's optional child-session seed. * @returns the live run handle for the child agent. */ export function startInProcessRun( @@ -118,7 +125,15 @@ export function startInProcessRun( request: SubagentStartRequest, options: InProcessRunOptions, ): SubagentRun { - const childDepth = depthOf(request.parent) + 1 + // Snapshot the accepted request synchronously. The parent and signal are + // identity capabilities (kept live but never reread from the mutable request + // record); every data field is detached before asynchronous owner setup. + const parent = request.parent + const signal = request.signal + const persona = request.persona + const toolFilter = request.toolFilter === undefined ? undefined : structuredClone(request.toolFilter) + const seed = options.seed === undefined ? undefined : structuredClone(options.seed) + const childDepth = depthOf(parent) + 1 if (request.maxDepth !== undefined && childDepth > request.maxDepth) { throw new SubagentDepthError(childDepth, request.maxDepth) } @@ -134,6 +149,17 @@ export function startInProcessRun( // validateStructuredValue to one isolation-immutable value. if (request.outputSchema !== undefined) assertSupportedOutputSchema(request.outputSchema) const schema = request.outputSchema === undefined ? undefined : structuredClone(request.outputSchema) + // The accepted request owns a value snapshot, not the caller's mutable + // content array. Validate the same lossless-JSON contract Session.append + // enforces before any child exists, then detach it synchronously so mutation + // during async creation cannot change what is logged or sent to the model. + if (!isJsonValue(request.prompt)) { + throw new TypeError('subagent prompt must be losslessly JSON-serializable') + } + const prompt = structuredClone(request.prompt) + if (!isJsonValue(prompt)) { + throw new TypeError('subagent prompt must be stable losslessly JSON-serializable data') + } const childId = AgentId(randomUUID()) // The child's OWN events begin after the seed (fork seeds the parent's @@ -141,76 +167,43 @@ export function startInProcessRun( // boundary so a child that produces no message of its own never returns the // SEEDED parent's last assistant message as its result. const seedLength = options.seed?.length ?? 0 - const parentHeader = request.parent.session.header + const parentHeader = parent.session.header // Inherit the parent's model by default (a child with no model cannot run); // an explicit `request.agentOptions.model` overrides it. The deployment // persona needs no inheritance (a context-wide section both render); a // per-child `request.persona` becomes a SCOPED section of the same name in // the setup below, shadowing the deployment's for this child alone. - const agentOptions: AgentOptions = { - ...request.parent.options.model !== undefined ? { model: request.parent.options.model } : {}, + const agentOptions: AgentOptions = structuredClone({ + ...parent.options.model !== undefined ? { model: parent.options.model } : {}, ...request.agentOptions, subagentDepth: childDepth, - } + }) - // The child's scoped world, composed in the factory's setup window (after - // the child's scope exists and it is registered, before agent/session-start - // and the first prompt assembly; a throw here unwinds the half-created - // child inside the factory's rollback boundary): + // The child's scoped world, composed in the factory's unpublished setup + // window. The factory awaits it before inserting or announcing the child, so + // a throw/rejection exposes neither id and every first assembly sees it: // - persona: a scoped `deployment:persona` section shadowing the global one; // - toolFilter: a scoped restrict() masking the global tool surface // (loud unknown-name validation lives in the registry); // - outputSchema: the structured runtime, attached as scoped registrations. let structured: StructuredAttachment | undefined const setup = (childCtx: Context): void => { - if (request.persona !== undefined) { - childCtx.systemPrompt.section({ name: 'deployment:persona', order: 0, text: request.persona }) + if (persona !== undefined) { + childCtx.systemPrompt.section({ name: 'deployment:persona', order: 0, text: persona }) } - if (request.toolFilter !== undefined) { - childCtx.tools.restrict(request.toolFilter) + if (toolFilter !== undefined) { + childCtx.tools.restrict(toolFilter) } if (schema !== undefined) { structured = attachStructuredRuntime(childCtx, schema) } } - const handle: AgentHandle = ctx.agents.create({ - agentId: childId, - sessionId: SessionId(randomUUID()), - meta: { - ...parentHeader.cwd !== undefined ? { cwd: parentHeader.cwd } : {}, - parentSession: parentHeader.id, - // Record the seed boundary so a reload (and a replay harness) can tell the - // inherited prefix from the child's OWN events. 0 for a fresh spawn. - ...seedLength > 0 ? { seedLength } : {}, - }, - ...options.seed !== undefined ? { seed: options.seed } : {}, - agentOptions, - setup, - }) - const child = handle.agent - - // Structured-concurrency link: the child's teardown rides the PARENT's - // scope, so a disposed parent reaches its whole subtree even if the - // delegating tool's `finally` never runs — through the MEMOIZED handle, so - // every path (tool finally, parent teardown, owner unload) observes the - // same quiescence boundary. Registered AFTER the child exists; if the - // parent began disposing in between, the registration throws - // INACTIVE_EFFECT — dispose the fresh child before rethrowing (no orphan). - // Definite assignment: the catch rethrows, so past this block the unlink - // disposer always exists. - let unlink!: () => Promise | void - try { - unlink = request.parent.ctx.effect(() => () => handle.dispose()) - } catch (error: unknown) { - // Fire-and-forget: start() must rethrow synchronously; the child's - // teardown (stop → unregister → detach) reaches quiescence on its own. - void handle.dispose() - throw error - } - // Bridge the request's abort signal to the child (the consumer also bridges // its own exec.signal, but a backend-level bridge keeps the contract local). + // Install it after provider ownership succeeds but BEFORE awaiting creation, + // so an inactive provider cannot leave an orphaned listener and abort/dispose + // during async setup is still recorded and applied the moment a child exists. // `cancelled` records that a cancel was requested at all, so the pre-turn // cancel window — where the child clears the queued prompt before any // `turn/end` is logged — settles as `aborted` (honoring the cancel contract) @@ -220,31 +213,104 @@ export function startInProcessRun( // abort listener, run.cancel), which control-flow narrowing cannot see — an // inline read at the result mapping would narrow to the initializer. const isCancelled = (): boolean => cancelled + let child: Agent | undefined + let handle: AgentHandle | undefined + let disposeRequested = false + const isDisposeRequested = (): boolean => disposeRequested const requestCancel = (reason: string): void => { cancelled = true - child.cancel(reason) + child?.cancel(reason) } const onAbort = (): void => { requestCancel('subagent cancelled') } - request.signal?.addEventListener('abort', onAbort, { once: true }) + + // One run-owned Cordis fiber is the common ownership node. Install the + // provider effect FIRST: a start racing an already-unloading provider fails + // before it can mint anything under the parent. The owner fiber is then + // nested under the parent scope, and the provider/run handle both dispose + // this exact fiber. AgentFactory binds its lifecycle to `ownerCtx`, so any of + // the three owners moves the fiber out of ACTIVE synchronously and setup + // cannot publish afterward. + let ownerCtx: Context | undefined + function subagentRunOwner(inner: Context): void { ownerCtx = inner } + let ownerFiber: (Fiber & PromiseLike) | undefined + let ownerSetupError: unknown + let ownerDisposing: Promise | undefined + const disposeOwner = (): Promise => (ownerDisposing ??= ownerFiber === undefined + ? Promise.resolve() + : quiesceFiber(ownerFiber)) + let manualDisposeRequested = false + const isManualDisposeRequested = (): boolean => manualDisposeRequested + const unlinkProvider = ctx.effect(() => () => { + requestCancel('subagent provider disposed') + return disposeOwner() + }, 'subagent-inprocess.run()') + signal?.addEventListener('abort', onAbort, { once: true }) + if (signal?.aborted) requestCancel('subagent cancelled') + try { + ownerFiber = parent.ctx.plugin(Object.assign(subagentRunOwner, { + inject: ['agents', 'sessions', 'llm', 'tools', 'systemPrompt'], + })) + } catch (error: unknown) { + ownerSetupError = error + } + + const creation: Promise = (async () => { + if (ownerSetupError !== undefined) { + throw ownerSetupError instanceof Error + ? ownerSetupError + : new Error('subagent run owner setup failed with a non-Error value', { cause: ownerSetupError }) + } + await ownerFiber + if (ownerCtx === undefined) { + throw new Error('subagent run owner became inactive before child creation') + } + // Invoke the factory THROUGH the parent scope. Cordis binds the factory's + // lifecycle effect to the accessing context, so parent ownership exists + // before persistence/setup and publication—not as a fallible link added + // after the child is already visible. A disposed parent therefore rejects + // before any session/agent notification, and disposal during async setup + // wins the unpublished transaction. + const created = await ownerCtx.agents.create({ + agentId: childId, + sessionId: SessionId(randomUUID()), + meta: { + ...parentHeader.cwd !== undefined ? { cwd: parentHeader.cwd } : {}, + parentSession: parentHeader.id, + ...seedLength > 0 ? { seedLength } : {}, + }, + ...seed !== undefined ? { seed } : {}, + agentOptions, + setup, + }) + handle = created + child = created.agent + + if (isCancelled()) created.agent.cancel('subagent cancelled') + return created.agent + })() const result: Promise = (async () => { try { - // A signal already aborted BEFORE the run starts never fires an `abort` - // event (`addEventListener` only fires on the transition), so the listener - // above won't catch it — settle `aborted` without running the child rather - // than completing an already-cancelled request. - if (request.signal?.aborted) return { output: [], stopReason: 'aborted' } - child.send(request.prompt) - await child.whenIdle() + let liveChild: Agent + try { + liveChild = await creation + } catch (error: unknown) { + if (isManualDisposeRequested()) return { output: [], stopReason: 'aborted' } + throw error instanceof Error ? error : new Error('subagent child creation failed with a non-Error value', { cause: error }) + } + if (isCancelled() || isDisposeRequested()) return { output: [], stopReason: 'aborted' } + liveChild.send(prompt) + await liveChild.whenIdle() // Deliberately NO re-prompt when a structured child finishes cleanly // without calling structured_output: readResult maps that to `error` — // the shortfall goes to the parent instead of buying extra model turns. - return readResult(child, seedLength, isCancelled(), structured ? { captured: structured.captured() } : undefined) + return readResult(liveChild, seedLength, isCancelled(), structured ? { captured: structured.captured() } : undefined) } finally { - request.signal?.removeEventListener('abort', onAbort) + signal?.removeEventListener('abort', onAbort) } })() + let disposing: Promise | undefined return { id: childId, result, @@ -252,13 +318,26 @@ export function startInProcessRun( requestCancel(reason ?? 'subagent cancelled') }, async dispose(): Promise { - request.signal?.removeEventListener('abort', onAbort) - // Through the parent-scope unlink when the parent is still live (one - // disposal path, and the dead effect leaves the parent's list); the - // memoized handle keeps a direct dispose equivalent if the parent's - // teardown already ran the unlink. - await unlink() - await handle.dispose() + return (disposing ??= (async () => { + signal?.removeEventListener('abort', onAbort) + disposeRequested = true + manualDisposeRequested = true + requestCancel('subagent disposed during creation') + // Removing provider ownership and disposing the common run-owner fiber + // are the same quiescence transaction; parent disposal may already have + // claimed it, in which case disposeOwner follows fiber inertia. + await unlinkProvider() + try { + await creation + } catch { + // Creation rollback already reached quiescence; there is no handle + // left to dispose, and dispose must not mask result's infrastructure + // rejection with the same error from a finally block. + return + } + await disposeOwner() + await handle?.dispose() + })()) }, } } diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts index 1b1bef839b..dff63486ed 100644 --- a/packages/subagent/subagent-inprocess/src/structured.ts +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -14,44 +14,39 @@ * a disposed child leaves no residue — no placeholder schema, * strip-for-everyone-else pass, or refcounted global runtime. * - * Four listeners enforce the contract: + * The child scope's registrations enforce the contract: * - * - `system-prompt/assemble` (prepend, scoped): assembly re-assert — the - * listener post-processes its downstream chain so a listener inside that - * chain cannot leave the child's capture tool or instruction stripped or - * replaced. Tools are replaced in place and the section is re-inserted at - * its ascending-order position, so the untampered path keeps the registry's - * ordering (up to intra-band section order, which carries no contract). A - * listener prepended later can still wrap and transform this result; this is - * an ordinary waterfall listener, not a service-level finalizer. The loop - * logs the rendered assembly as the request header, so the demand is - * reconstructable log state, never a wire-only mutation. - * - `agent/turn-continuation` (prepend, scoped): stop the child's turn once - * its output is captured — the loop's default "had tool calls ⇒ continue" - * would buy a wasted extra model step per structured child. - * - `tools/pre-execute` (prepend, scoped): terminal means terminal WITHIN the - * step — deny every call arriving after the capture, so a response that - * lists `structured_output` before further tool calls cannot run side - * effects after the final answer was accepted. - * - `tools/post-execute` (prepend, scoped): the capture COMMIT. The tool body - * only STAGES the validated value, KEYED BY THE EXECUTION OBJECT in a - * WeakMap; it becomes the run's captured result when this listener's - * downstream post-execute decision accepts THAT SAME pipeline trip. A - * later-prepended wrapper remains outside that decision. Execution-keyed - * staging makes the stale-stage class structurally impossible: a value - * orphaned by an outer short-circuiting listener (a post-execute block, or - * a pre-execute deny whose call never dispatched) can never match another - * execution's lookup — whatever call id that execution carries — and is - * reclaimed with the execution object itself. + * - `systemPrompt.protect()` declaratively protects the capture tool and its + * instruction. The service restores their canonical pre-waterfall state + * after EVERY assembly listener. Canonical absence is protected too: pure + * Code Mode keeps `structured_output` in the SDK only and never grows a + * second native wire tool. Code Mode's owner independently protects its SDK + * and `run_code` transport. The loop logs the finalized assembly as the + * request header, so the demand is reconstructable log state, never a + * wire-only mutation. + * - `agent/turn-stop` (serial, scoped): stop the child's turn once its output + * is captured. This terminal checkpoint runs after the ordinary continuation + * waterfall and steering folding, so listener order cannot resurrect a + * completed structured run or carry terminal steering into another turn. + * - `tools.guard()` is the monotonic terminal gate after the extensible + * pre-execute waterfall: once capture commits, no later listener can turn + * the denial back into a dispatched side effect. + * - `tools/result` is the capture COMMIT point. The tool body only STAGES the + * validated value in a WeakMap keyed by the execution object; the awaited, + * non-transforming notification promotes it only when the authoritative + * result after the whole pre/execute/post pipeline succeeds. For a Code Mode + * sub-dispatch, promotion waits again for the enclosing `run_code` result, so + * a runtime failure or outer post-policy block cannot report structured + * success. Execution identity makes call-id reuse and orphaned stages + * irrelevant. * * @module @deepseek-ai/dsh-subagent-inprocess/structured */ import type { Context } from 'cordis' -import type { Agent, ContinuationDecision } from '@deepseek-ai/dsh-agent' +import type { ContinuationStop } from '@deepseek-ai/dsh-agent' import type { ContentBlock, ToolSchema } from '@deepseek-ai/dsh-llm' -import type { AssembleContext, PromptAssembly } from '@deepseek-ai/dsh-system-prompt' -import type { PostToolDecision, PreToolDecision, ToolExecution, ToolExecutionResult } from '@deepseek-ai/dsh-tools' +import type { ToolExecution } from '@deepseek-ai/dsh-tools' import { ToolArgsError, validateStructuredValue, type StructuredOutputSchema } from '@deepseek-ai/dsh-tools' /** The model-facing tool name a structured child must call to finish. */ @@ -71,7 +66,7 @@ export const STRUCTURED_OUTPUT_INSTRUCTION export interface StructuredAttachment { /** * The captured value, once the child called the tool with valid arguments - * and the final post-execute decision accepted that call. + * and the authoritative final tool result accepted that call. * @returns the committed value, or undefined while none was accepted. */ captured(): { value: unknown } | undefined @@ -80,7 +75,7 @@ export interface StructuredAttachment { /** * Attach the structured-output runtime to a child for `schema`: register the * scoped capture tool (real schema), the scoped instruction section, and the - * four scoped enforcement listeners (see the module doc). Call from the + * scoped enforcement registrations (see the module doc). Call from the * agent-creation `setup` window with the child's scope context — every * registration rides the child's fiber and unwinds with the child. * @param childCtx - the child agent's scope context (`setup`'s argument). @@ -91,19 +86,16 @@ export interface StructuredAttachment { export function attachStructuredRuntime(childCtx: Context, schema: StructuredOutputSchema): StructuredAttachment { /** * Validated values staged by the capture tool body, awaiting THEIR OWN - * call's post-execute verdict — keyed by the {@link ToolExecution} OBJECT, - * the one token that provably ties a stage to one trip through the - * pipeline. A call id cannot key this: ids are adapter-minted and may - * repeat across steps. Keying by execution makes the stale-stage class - * structurally impossible — an entry orphaned by an outer short-circuiting - * listener can never match a different execution's lookup, needs no drop - * bookkeeping (the WeakMap reclaims it with the execution object), and two - * in-flight captures can never cross-clobber each other's STAGE should - * tool execution ever go parallel (the loop's documented TODO). Staging is - * the only layer this future-proofs: a parallel-execution cut would still - * owe its own single-accept rule for `captured` itself. + * authoritative `tools/result` notification. The execution object's identity + * uniquely identifies a trip through the pipeline: adapter call ids may + * repeat across steps, but another execution can never reach this WeakMap + * entry. This is distinct from the opaque `ToolExecutionToken` used to + * correlate nested transports. The final notification always deletes its own + * stage, whether the result succeeded or failed. */ const staged = new WeakMap() + /** Successful nested capture waiting for its enclosing transport to commit. */ + let pending: { parent: ToolExecution['token']; value: unknown } | undefined let captured: { value: unknown } | undefined const schemaEntry: ToolSchema = { @@ -123,10 +115,10 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut // ToolArgsError → isError result with INVALID_ARGS: the model retries // within the same turn, exactly like a schema-validated defineTool call. if (violations.length > 0) throw new ToolArgsError(violations) - // Two-phase commit, KEYED BY THIS EXECUTION: the body only stages; the - // post-execute listener promotes exactly this pipeline trip's entry - // when its downstream decision accepts it. - staged.set(exec, { value: args }) + // Two-phase commit, keyed by THIS execution: later transformable + // waterfalls may still turn the success into an error. Snapshot the + // validated value independently of the already-frozen pipeline arguments. + staged.set(exec, { value: structuredClone(args) }) return Promise.resolve([{ type: 'text', text: 'Structured output recorded.' }]) }, }) @@ -137,105 +129,58 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut text: STRUCTURED_OUTPUT_INSTRUCTION, }) - // PREPENDED assembly re-assert: scoped dispatch means this fires only for the - // child's assemblies; `await next()` returns whatever this listener's - // downstream chain produced, and the capture tool + instruction are - // re-asserted onto it if anything stripped them. A listener prepended later - // can still wrap and transform the returned assembly; this is not a - // service-level finalizer. - childCtx.on('system-prompt/assemble', async function ( - this: unknown, _assembly: PromptAssembly, _context: AssembleContext, next: () => Promise, - ): Promise { - const final = await next() - // REPLACE, not merely ensure-present: a downstream listener may have - // mutated or injected a same-named entry with the WRONG schema/text, and - // the model-visible demand must be exactly this run's own — the same - // schema validateStructuredValue enforces. Placement-preserving on both - // arrays: the untampered path keeps the registry's ordering (tool order - // is the `toolOrder`/lexicographic contract, section order the ascending - // contract `renderPrompt` trusts), so this never reorders what it only - // re-asserts — up to intra-band section order, which carries no contract - // (a 190-order section registered AFTER this runtime sorts before the - // instruction in the registry but after it here). - const freshTool: ToolSchema = { ...schemaEntry, parameters: structuredClone(schemaEntry.parameters) } - // Tools: replace the first same-named entry IN PLACE (its position is the - // chain's product; a tool's list position carries no semantic band to - // restore), drop any duplicates, append only when stripped entirely. - const tools: ToolSchema[] = [] - let toolReplaced = false - for (const tool of final.tools) { - if (tool.name !== STRUCTURED_OUTPUT_TOOL) { - tools.push(tool) - } else if (!toolReplaced) { - tools.push(freshTool) - toolReplaced = true + // Service-owned finalization, not waterfall ordering. The canonical + // assembly determines both presence and absence: native/both modes restore + // the capture schema on the wire, while pure Code Mode removes any injected + // native entry. ToolRegistry's own protection independently restores the SDK + // section and run_code transport that carry the same schema. + childCtx.systemPrompt.protect({ + sections: [`tool:${STRUCTURED_OUTPUT_TOOL}`], + tools: [STRUCTURED_OUTPUT_TOOL], + }) + + // Stop the child's turn once its output is captured. This monotonic serial + // checkpoint runs after the ordinary continuation waterfall, its reason, + // and late-steering folding, so no ordering trick can resume a finished run. + childCtx.on('agent/turn-stop', function (this: unknown): ContinuationStop | undefined { + return captured === undefined ? undefined : { action: 'stop' } + }) + + // Terminal WITHIN the step. Guards run after the whole pre-execute + // waterfall and compose monotonically (deny or abstain, never allow), so a + // later prepended listener cannot resurrect dispatch. Calls that precede + // capture in the same response remain untouched. + childCtx.tools.guard(exec => captured === undefined && pending === undefined + ? undefined + : `structured output already recorded: the run is complete, so \`${exec.name}\` is not executed`) + + // The capture COMMIT observes the immutable, authoritative result after the + // complete pipeline and outer error normalization. This notification cannot + // transform the outcome, so there is no wrapper outside the commit verdict. + childCtx.on('tools/result', function (this: unknown, exec, result): void { + if (exec.name === STRUCTURED_OUTPUT_TOOL) { + const entry = staged.get(exec) + if (entry === undefined) return + staged.delete(exec) + if (result.isError) return + if (exec.parent === undefined) { + /* v8 ignore else -- sequential agent-loop dispatch lets the guard block every later supported call */ + if (captured === undefined) captured = { value: entry.value } + } else { + /* v8 ignore else -- Code Mode serializes sub-dispatches, so the guard blocks every later supported call */ + if (captured === undefined && pending === undefined) { + pending = { parent: exec.parent, value: entry.value } + } } + return } - if (!toolReplaced) tools.push(freshTool) - final.tools = tools - // Sections: remove every same-named entry and re-insert at the - // ascending-correct position (the first entry above order 190) — sections - // DO carry an order contract, and the renderer reads array order, so a - // stripped-or-moved instruction is restored to its band, not appended - // after unrelated higher-order sections. On the untampered path this - // lands at the end of the 190 band — where the registry's stable sort - // put it too, unless another 190-order section registered later. - const sectionName = `tool:${STRUCTURED_OUTPUT_TOOL}` - const sections = final.sections.filter(section => section.name !== sectionName) - const insertAt = sections.findIndex(section => section.order > 190) - sections.splice(insertAt === -1 ? sections.length : insertAt, 0, { name: sectionName, order: 190, text: STRUCTURED_OUTPUT_INSTRUCTION }) - final.sections = sections - return final - }, { prepend: true }) - - // Stop the child's turn once its output is captured. `prepend: true` puts - // the veto OUTERMOST — an earlier-registered listener that short-circuits - // the chain (a goal-style force-continue returning without `next()`) would - // otherwise decide the turn before this listener ever ran, and no - // downstream decision may resurrect a structured turn that is finished. - childCtx.on('agent/turn-continuation', function ( - this: unknown, _agent: Agent, _turn: number, _decision: ContinuationDecision, next: () => Promise, - ): Promise { - if (captured) return Promise.resolve({ action: 'stop' }) - return next() - }, { prepend: true }) - - // Terminal WITHIN the step: deny every call after the capture. Calls that - // PRECEDE the capture in the same response ran before `captured` was set - // and are untouched; a second `structured_output` is denied like any other. - childCtx.on('tools/pre-execute', function ( - this: unknown, exec: ToolExecution, next: () => Promise, - ): Promise { - if (captured) { - return Promise.resolve({ - kind: 'deny', - reason: `structured output already recorded: the run is complete, so \`${exec.name}\` is not executed`, - }) - } - return next() - }, { prepend: true }) - - // The capture COMMIT: promote a staged value only when the final - // post-execute decision accepts THE SAME EXECUTION that staged it — the - // lookup key IS the execution, so a stale entry from a different pipeline - // trip (its own chain short-circuited past this commit by an outer - // post-execute block, or an outer pre-execute deny whose call never - // dispatched) is unreachable here by construction, whatever the current - // call's id. - childCtx.on('tools/post-execute', async function ( - this: unknown, exec: ToolExecution, _result: ToolExecutionResult, next: () => Promise, - ): Promise { - if (exec.name !== STRUCTURED_OUTPUT_TOOL) return next() - const entry = staged.get(exec) - if (entry === undefined) return next() - // Single-shot per execution: this trip's verdict is decided by the chain - // below, never revisited (the WeakMap would reclaim the entry either way; - // deleting states the intent). - staged.delete(exec) - const decision = await next() - if (decision.kind === 'accept') captured = { value: entry.value } - return decision - }, { prepend: true }) + if (pending?.parent !== exec.token) return + const entry = pending + pending = undefined + if (result.isError) return + /* v8 ignore else -- Code Mode serializes outer executions, so the guard blocks every later supported call */ + if (captured === undefined) captured = { value: entry.value } + }) return { captured: () => captured } } diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index 3a024c7e66..1e63617154 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -9,7 +9,8 @@ import type { ContinuationDecision } from '@deepseek-ai/dsh-agent' import AgentLoop from '@deepseek-ai/dsh-agent-loop' import * as Invariants from '@deepseek-ai/dsh-invariants' import SubagentService, { type SubagentStartRequest } from '@deepseek-ai/dsh-subagent' -import type { StructuredOutputSchema } from '@deepseek-ai/dsh-tools' +import type { Config as ToolConfig, StructuredOutputSchema } from '@deepseek-ai/dsh-tools' +import { RUN_CODE_NAME } from '@deepseek-ai/dsh-tools' import { MockAdapter, textResponse, toolCallResponse } from '../../../core/agent-loop/tests/mock-adapter.ts' import { startInProcessRun } from '../src/index.ts' import { @@ -19,6 +20,15 @@ import { type Script = ConstructorParameters[0] +interface CodeRunRequestLike { + bindings: { global: string; functions: Record Promise> }[] +} + +interface SetupOptions { + toolMode?: ToolConfig['mode'] + codeRun?: (request: CodeRunRequestLike) => Promise<{ logs: never[]; value?: unknown }> +} + const SCHEMA: StructuredOutputSchema = { type: 'object', properties: { answer: { type: 'number' }, note: { type: 'string' } }, @@ -33,13 +43,20 @@ const SCHEMA: StructuredOutputSchema = { * coverage lives in the spawn/fork specs. The mock model script drives the * child's structured_output calls. */ -async function setup(script: Script) { +async function setup(script: Script, options: SetupOptions = {}) { const ctx = new Context() const adapter = new MockAdapter(script) await ctx.plugin(LlmService) await ctx.plugin(SessionStore) await ctx.plugin(SystemPrompt) - await ctx.plugin(ToolRegistry) + await ctx.plugin(ToolRegistry, { mode: options.toolMode ?? 'native' }) + if (options.toolMode === 'code' || options.toolMode === 'both') { + ctx.provide('codeRuntime', { + language: 'typescript', + isolation: 'test', + run: options.codeRun ?? (() => Promise.resolve({ logs: [] })), + } as never) + } await ctx.plugin(AgentRegistry) await ctx.plugin(Invariants) await ctx.plugin(AgentLoop, { agents: [] }) @@ -48,7 +65,7 @@ async function setup(script: Script) { name: 'spawn', capabilities: { outputSchema: true, depthLimit: true, toolFilter: false, persona: false }, inheritsParentContext: false, - start: (request: SubagentStartRequest) => startInProcessRun(ctx, request, { providerName: 'spawn' }), + start: (request: SubagentStartRequest) => startInProcessRun(ctx, request, {}), }) ctx.llm.registerAdapter(['mock'], adapter) const parent = ctx.agentLoop.create(AgentId('parent'), { model: 'mock' }) @@ -121,6 +138,44 @@ describe('in-process structured output', () => { await run.dispose() }) + it('a later prepended pre-execute listener cannot resurrect dispatch after capture', async () => { + const response = [ + ...toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 5 }).slice(0, -2), + { type: 'block-start', index: 1, blockType: 'tool-call' }, + { type: 'block-end', index: 1, block: { type: 'tool-call', id: CallId('c2'), name: 'side_effect', arguments: '{}' } }, + { type: 'usage', usage: { inputTokens: 10, outputTokens: 5 } }, + { type: 'finish', reason: { kind: 'tool-calls' } }, + ] as Script[number] + const { ctx, parent } = await setup([response]) + let sideEffectRan = false + ctx.tools.register({ + name: 'side_effect', + description: 'probe', + parameters: { type: 'object', properties: {} }, + execute(): Promise { + sideEffectRan = true + return Promise.resolve([{ type: 'text', text: 'ran' }]) + }, + }) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + // Registered after the child and prepended: this listener returns allow + // after every downstream pre-execute decision. The service-owned guard + // runs after the waterfall and can only deny, so the body still cannot run. + ctx.on('tools/pre-execute', async (_exec, next) => { + await next() + return { kind: 'allow' as const } + }, { prepend: true }) + + const result = await run.result + expect(result.structured).toEqual({ answer: 5 }) + expect(sideEffectRan).toBe(false) + const child = ctx.agents.get(run.id) + const sideEffectResult = child?.session.events.find(event => + event.type === 'tool/result' && event.data.callId === 'c2') + expect(sideEffectResult?.type === 'tool/result' && sideEffectResult.data.isError).toBe(true) + await run.dispose() + }) + it('leaves tool calls that PRECEDE the capture in the same response untouched', async () => { const response = [ { type: 'block-start', index: 0, blockType: 'tool-call' }, @@ -173,23 +228,67 @@ describe('in-process structured output', () => { await run.dispose() }) - it('the captured-turn veto is prepend: an EARLIER force-continue listener cannot short-circuit it', async () => { - // A goal-style listener registered BEFORE the child exists, returning a - // forced continue WITHOUT calling next(). Without prepend on the scoped - // veto, this would decide the turn first and buy a wasted model step — - // the one-response script would then throw on the second request. + it('a later-prepended continuation wrapper cannot resurrect a captured turn', async () => { const { ctx, parent, adapter } = await setup([ toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 7 }), + textResponse('MUST NOT BE CONSUMED'), ]) - ctx.on('agent/turn-continuation', () => Promise.resolve({ action: 'continue' })) + ctx.on('agent/turn-continuation', () => Promise.resolve({ action: 'stop' })) const run = ctx.subagents.start('spawn', structuredRequest(parent)) + let wrapperInstalled = false + // Register this observer only after start() returns. The child session-start + // boundary is after its unpublished setup attached structured output but + // before the loop can run; install a prepended wrapper there. It awaits the + // explicit downstream stop above, then overwrites that result with continue. + // The later terminal checkpoint still wins. + ctx.on('agent/session-start', (child) => { + if (child.id !== run.id) return + wrapperInstalled = true + child.ctx.on('agent/turn-continuation', async (_subject, _turn, _decision, next): Promise => { + const downstream = await next() + expect(downstream).toEqual({ action: 'stop' }) + return { action: 'continue' } + }, { prepend: true }) + }) const result = await run.result + expect(wrapperInstalled).toBe(true) expect(result.structured).toEqual({ answer: 7 }) expect(result.stopReason).toBe('completed') expect(adapter.requests).toHaveLength(1) await run.dispose() }) + it('a continuation wrapper cannot carry steering past a captured terminal stop', async () => { + const { ctx, parent, adapter } = await setup([ + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 9 }), + textResponse('MUST NOT BE CONSUMED'), + ]) + // The downstream ordinary policy says stop. A wrapper registered after + // start() delegates to that stop, then queues steering; ordinary folding + // would turn the stop back into continue. The terminal checkpoint runs + // afterwards and discards that steering. + ctx.on('agent/turn-continuation', () => Promise.resolve({ action: 'stop' })) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + ctx.on('agent/session-start', (child) => { + if (child.id !== run.id) return + child.ctx.on('agent/turn-continuation', async (subject, _turn, _decision, next): Promise => { + const downstream = await next() + expect(downstream).toEqual({ action: 'stop' }) + subject.steer([{ type: 'text', text: 'late steering after downstream stop' }]) + return downstream + }, { prepend: true }) + }) + + const result = await run.result + const child = ctx.agents.get(run.id) + + expect(result.structured).toEqual({ answer: 9 }) + expect(adapter.requests).toHaveLength(1) + expect(child?.session.events.filter(event => event.type === 'turn/start')).toHaveLength(1) + expect(child?.session.events.filter(event => event.type === 'steering/message')).toHaveLength(0) + await run.dispose() + }) + it('an invalid call gets an INVALID_ARGS isError result and the model retries in-turn', async () => { const { ctx, parent } = await setup([ toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 'not-a-number' }), @@ -236,11 +335,11 @@ describe('in-process structured output', () => { it('a cancel landing after a clean capture-less turn settles aborted, not error', async () => { const { ctx, parent } = await setup([textResponse('prose, no capture')]) const run = ctx.subagents.start('spawn', structuredRequest(parent)) - const child = ctx.agents.get(run.id)! // Cancel synchronously inside the turn's end recording: the cancel // contract outranks the schema shortfall, so the result maps to aborted. ctx.on('session/event', (session, event) => { - if (session === child.session && event.type === 'turn/end') run.cancel('cancelled at turn end') + const child = ctx.agents.get(run.id) + if (session === child?.session && event.type === 'turn/end') run.cancel('cancelled at turn end') }) const result = await run.result expect(result.stopReason).toBe('aborted') @@ -270,8 +369,8 @@ describe('in-process structured output', () => { toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 7 }), textResponse('continues after the blocked capture'), ]) - // A PostToolUse-style hook, registered AFTER the runtime (so the runtime's - // prepend commit listener stays outermost and composes this verdict). + // A PostToolUse-style hook turns the tool body's provisional success into + // the authoritative final error observed by the commit notification. ctx.on('tools/post-execute', (exec, _result, next) => { if (exec.name === STRUCTURED_OUTPUT_TOOL) { return Promise.resolve({ kind: 'block' as const, feedback: [{ type: 'text' as const, text: 'capture rejected by hook' }] }) @@ -311,6 +410,31 @@ describe('in-process structured output', () => { await run.dispose() }) + it('commits only after a later prepended post-execute wrapper returns the authoritative result', async () => { + const { ctx, parent } = await setup([ + toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 8 }), + textResponse('capture was rejected'), + ]) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + // Registered after attachment and prepended, so it wraps every listener + // the child installed. It delegates first, then converts the apparent + // capture success into the pipeline's authoritative failure. + ctx.on('tools/post-execute', async (exec, _result, next) => { + const downstream = await next() + if (exec.name !== STRUCTURED_OUTPUT_TOOL) return downstream + return { kind: 'block' as const, feedback: [{ type: 'text' as const, text: 'rejected after downstream' }] } + }, { prepend: true }) + + const result = await run.result + expect(result.structured).toBeUndefined() + expect(result.stopReason).toBe('error') + const child = ctx.agents.get(run.id) + const captureResult = child?.session.events.find(event => + event.type === 'tool/result' && event.data.callId === 'c1') + expect(captureResult?.type === 'tool/result' && captureResult.data.isError).toBe(true) + await run.dispose() + }) + it('appends the structured instruction to the child REQUEST\'s system text (base prompt preserved)', async () => { const { ctx, parent, adapter } = await setup([toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 1 })]) // A context-wide section stands in for the deployment persona: the @@ -327,6 +451,100 @@ describe('in-process structured output', () => { await run.dispose() }) + it('keeps pure Code Mode at one wire tool and exposes structured capture through the SDK only', async () => { + const { ctx, parent, adapter } = await setup([ + toolCallResponse('c1', RUN_CODE_NAME, { code: 'return await tools.structured_output({ answer: 12 })' }), + ], { + toolMode: 'code', + codeRun: async (request) => { + const capture = request.bindings.at(0)?.functions[STRUCTURED_OUTPUT_TOOL] + if (!capture) throw new Error('structured_output binding missing') + await capture({ answer: 12 }) + return { logs: [], value: 'captured' } + }, + }) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + + // This listener is registered after the child's protection and prepended. + // Service finalization still restores the stripped transport and prompt + // parts, while removing the fabricated native capture tool. + ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { + const result = await next() + return { + sections: result.sections.filter(section => + section.name !== 'tools:sdk' && section.name !== `tool:${STRUCTURED_OUTPUT_TOOL}`), + tools: [ + ...result.tools.filter(tool => tool.name !== RUN_CODE_NAME), + { name: STRUCTURED_OUTPUT_TOOL, description: 'wrong native duplicate', parameters: {} }, + ], + variables: result.variables, + } + }, { prepend: true }) + + const result = await run.result + expect(result.structured).toEqual({ answer: 12 }) + const request = adapter.requests[0]! + expect(toolNames(request)).toEqual([RUN_CODE_NAME]) + expect(request.system).toContain('declare const tools:') + expect(request.system).toContain('structured_output(args:') + expect(request.system).toContain(STRUCTURED_OUTPUT_INSTRUCTION) + await run.dispose() + }) + + it('discards a nested capture when the enclosing run_code execution fails', async () => { + const { ctx, parent, adapter } = await setup([ + toolCallResponse('c1', RUN_CODE_NAME, { code: 'await tools.structured_output({ answer: 12 }); throw new Error("boom")' }), + textResponse('outer code failed'), + ], { + toolMode: 'code', + codeRun: async (request) => { + const capture = request.bindings.at(0)?.functions[STRUCTURED_OUTPUT_TOOL] + if (!capture) throw new Error('structured_output binding missing') + await capture({ answer: 12 }) + return { + logs: [], + error: { kind: 'runtime', message: 'boom after capture' }, + } as never + }, + }) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + + const result = await run.result + expect(result.structured).toBeUndefined() + expect(result.stopReason).toBe('error') + expect(adapter.requests).toHaveLength(2) + const child = ctx.agents.get(run.id)! + const outer = child.session.events.find(event => + event.type === 'tool/result' && event.data.callId === CallId('c1')) + expect(outer?.type === 'tool/result' && outer.data.isError).toBe(true) + await run.dispose() + }) + + it('discards a nested capture when post-policy blocks the enclosing run_code result', async () => { + const { ctx, parent, adapter } = await setup([ + toolCallResponse('c1', RUN_CODE_NAME, { code: 'return await tools.structured_output({ answer: 12 })' }), + textResponse('outer code was blocked'), + ], { + toolMode: 'code', + codeRun: async (request) => { + const capture = request.bindings.at(0)?.functions[STRUCTURED_OUTPUT_TOOL] + if (!capture) throw new Error('structured_output binding missing') + await capture({ answer: 12 }) + return { logs: [], value: 'captured' } + }, + }) + ctx.on('tools/post-execute', (exec, _result, next) => exec.name === RUN_CODE_NAME + ? Promise.resolve({ kind: 'block' as const, feedback: [{ type: 'text' as const, text: 'outer blocked' }] }) + : next()) + const run = ctx.subagents.start('spawn', structuredRequest(parent)) + + const result = await run.result + expect(result.structured).toBeUndefined() + expect(result.stopReason).toBe('error') + expect(adapter.requests).toHaveLength(2) + await run.dispose() + }) + it('the instruction rides ONLY structured requests: appended for the child, absent for a plain agent', async () => { const { ctx, parent, adapter } = await setup([ textResponse('parent answer'), @@ -412,12 +630,12 @@ describe('in-process structured output', () => { await runB.dispose() }) - it('the re-assert REPLACES a conflicting injected schema, not merely ensures presence', async () => { + it('protection replaces a conflicting injected schema, not merely ensuring presence', async () => { const { ctx, parent, adapter } = await setup([ toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 5 }), ]) // A global listener that INJECTS a wrong-schema structured_output entry: - // the child's re-assert must replace it with the run's own schema. + // protection restores the run's own canonical schema. ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { const replaced = await next() return { @@ -438,14 +656,14 @@ describe('in-process structured output', () => { await run.dispose() }) - it('the re-assert wins against a downstream listener that REPLACES the assembly object', async () => { + it('protection wins against a listener that replaces the assembly object', async () => { const { ctx, parent, adapter } = await setup([ toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 5 }), ]) // A global (every-assembly) listener that returns a brand-new assembly // WITHOUT the capture tool or instruction — the composition caveat that - // erases cooperative mutations. The child's prepend re-assert runs - // OUTERMOST and restores both. + // erases cooperative mutations. Service finalization restores both + // after the complete waterfall. ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { const replaced = await next() return { @@ -465,13 +683,13 @@ describe('in-process structured output', () => { await run.dispose() }) - it('the re-assert preserves the untampered assembly: tool position and section band are the registry\'s own', async () => { + it('protection preserves the canonical tool position and section band', async () => { const { ctx, parent, adapter } = await setup([ toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 7 }), ]) // A global tool sorting lexicographically AFTER structured_output and a - // global section ABOVE the 190 band: the re-assert must leave both - // exactly where the registry's ordering put them (no move-to-end). + // global section above the 190 band: protection leaves both exactly + // where the canonical registry ordering put them. ctx.tools.register({ name: 'zz_probe', description: 'probe', @@ -498,7 +716,7 @@ describe('in-process structured output', () => { ]) ctx.systemPrompt.section({ name: 'after-band', order: 200, text: 'AFTER-BAND' }) // Strip the instruction section entirely AND add a wrong-schema - // duplicate tool entry ALONGSIDE the registry's own: the re-assert must + // duplicate tool entry alongside the registry's own: protection must // restore the section INTO its band (before the order-200 section, not // appended after it) and collapse the tools to exactly one entry // carrying the run's schema. @@ -578,15 +796,14 @@ describe('in-process structured output', () => { expect(result.error?.code).toBe('UNKNOWN_TOOL') }) - it('a stale stage from a short-circuited chain is never promoted by a later call (execution-keyed commit)', async () => { + it('a failed execution stage is discarded and never promoted by a later call', async () => { const { ctx, parent } = await setup([ toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 1 }), ]) const run = ctx.subagents.start('spawn', structuredRequest(parent)) - const child = ctx.agents.get(run.id)! - // An OUTER post-execute listener (registered after attach, prepend ⇒ - // outermost) that BLOCKS the first capture WITHOUT delegating: the commit - // listener never runs for c1, so its staged value would linger. + // A prepended post-execute listener blocks the first capture without + // delegating. The final-result notification discards that execution's + // stage when it observes the error. let blocks = 1 ctx.on('tools/post-execute', (exec, _result, next) => { if (exec.name === STRUCTURED_OUTPUT_TOOL && blocks > 0) { @@ -596,11 +813,12 @@ describe('in-process structured output', () => { return next() }, { prepend: true }) const result = await run.result + const child = ctx.agents.get(run.id)! // The blocked capture must NOT surface as structured success… expect(result.stopReason).toBe('error') expect(result.structured).toBeUndefined() // …and a LATER invalid call (its own body staged nothing) must not - // resurrect c1's orphaned value: drive the pipeline directly. + // resurrect c1's discarded value: drive the pipeline directly. const invalid = await ctx.tools.execute({ callId: 'c2' as never, name: STRUCTURED_OUTPUT_TOOL, @@ -619,14 +837,13 @@ describe('in-process structured output', () => { await run.dispose() }) - it('a later capture call REUSING a stale stage\'s call id never promotes it (unconditional commit safety)', async () => { + it('reusing a failed execution\'s call id never promotes its discarded stage', async () => { const { ctx, parent } = await setup([ toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 1 }), ]) const run = ctx.subagents.start('spawn', structuredRequest(parent)) - const child = ctx.agents.get(run.id)! - // Orphan a stage: an outer short-circuiting post-execute BLOCK on the - // first capture (its chain never reaches the commit listener). + // Block the first capture after its body stages a value. Its final error + // discards that execution's stage. let blocks = 1 ctx.on('tools/post-execute', (exec, _result, next) => { if (exec.name === STRUCTURED_OUTPUT_TOOL && blocks > 0) { @@ -636,8 +853,9 @@ describe('in-process structured output', () => { return next() }, { prepend: true }) await run.result + const child = ctx.agents.get(run.id)! // A SECOND capture call with the SAME call id whose body never stages - // (invalid args throw before the stage): the stale value must not ride + // (invalid args throw before the stage): the discarded value must not ride // its acceptance. const reused = await ctx.tools.execute({ callId: 'c1' as never, @@ -657,13 +875,12 @@ describe('in-process structured output', () => { await run.dispose() }) - it('an outer pre-execute deny with call-id reuse cannot promote an orphaned stage either', async () => { + it('a pre-execute deny with call-id reuse cannot promote another execution\'s stage', async () => { const { ctx, parent } = await setup([ toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 1 }), ]) const run = ctx.subagents.start('spawn', structuredRequest(parent)) - const child = ctx.agents.get(run.id)! - // Orphan a stage via an outer post-execute BLOCK on the first capture. + // Discard the first capture's stage via a final post-execute block. let blocks = 1 ctx.on('tools/post-execute', (exec, _result, next) => { if (exec.name === STRUCTURED_OUTPUT_TOOL && blocks > 0) { @@ -673,9 +890,9 @@ describe('in-process structured output', () => { return next() }, { prepend: true }) await run.result - // An OUTERMOST prepend pre-execute deny: the structured runtime's own - // pre-execute never runs for this call, and the denied call still goes - // through post-execute — with the SAME call id as the orphaned stage. + const child = ctx.agents.get(run.id)! + // A prepended pre-execute deny skips the body, while the denied call still + // reaches the final notification with the same adapter-minted call id. const offDeny = ctx.on('tools/pre-execute', (exec) => { if (exec.name === STRUCTURED_OUTPUT_TOOL) { return Promise.resolve({ kind: 'deny' as const, reason: 'outer veto' }) @@ -690,7 +907,7 @@ describe('in-process structured output', () => { }) expect(denied.isError).toBe(true) offDeny() - // The orphan was never promoted: a fresh valid call is still required + // The discarded value was never promoted: a fresh valid call is required // (and succeeds, proving the runtime is not wedged). const valid = await ctx.tools.execute({ callId: 'c1' as never, diff --git a/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts b/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts index 7219e03988..648ee5935f 100644 --- a/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts @@ -1,5 +1,5 @@ -import { describe, expect, it } from 'vitest' -import { Context } from 'cordis' +import { describe, expect, it, vi } from 'vitest' +import { Context, type Fiber } from 'cordis' import LlmService from '@deepseek-ai/dsh-llm' import SessionStore from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' @@ -49,9 +49,166 @@ describe('depthOf', () => { }) describe('startInProcessRun', () => { + it('rejects a non-JSON prompt before acquiring any run ownership', async () => { + const { ctx, parent } = await setup([]) + expect(() => startInProcessRun(ctx, { + prompt: [{ type: 'text', text: Number.NaN as unknown as string }], + parent, + }, {})).toThrow('subagent prompt must be losslessly JSON-serializable') + }) + + it('rejects a prompt whose getter becomes non-JSON while it is snapshotted', async () => { + const { ctx, parent } = await setup([]) + let reads = 0 + const prompt = [{ + type: 'text' as const, + get text(): string { + reads += 1 + return reads === 1 ? 'valid during pre-check' : Number.NaN as unknown as string + }, + }] + + expect(() => startInProcessRun(ctx, { prompt, parent }, {})) + .toThrow('subagent prompt must be stable losslessly JSON-serializable data') + expect(reads).toBe(2) + }) + + it('rejects when the run-owner fiber settles without installing its context', async () => { + const { ctx, parent } = await setup([]) + function inertOwner(): void {} + const inertFiber = ctx.plugin(inertOwner) + await inertFiber + const parentWithoutOwnerContext = { + options: parent.options, + session: parent.session, + ctx: { plugin: () => inertFiber }, + } as unknown as Agent + + const run = startInProcessRun(ctx, { + prompt: [{ type: 'text', text: 'must never start' }], + parent: parentWithoutOwnerContext, + }, {}) + await expect(run.result).rejects.toThrow('subagent run owner became inactive before child creation') + await run.dispose() + }) + + it('normalizes a non-Error thrown while installing the run-owner fiber', async () => { + const { ctx, parent } = await setup([]) + const setupFailure = 'non-Error owner setup failure' + const parentWithFailingOwnerSetup = { + options: parent.options, + session: parent.session, + ctx: { plugin: () => { throw setupFailure } }, + } as unknown as Agent + + const run = startInProcessRun(ctx, { + prompt: [{ type: 'text', text: 'must never start' }], + parent: parentWithFailingOwnerSetup, + }, {}) + await expect(run.result).rejects.toMatchObject({ + message: 'subagent run owner setup failed with a non-Error value', + cause: setupFailure, + }) + await run.dispose() + }) + + it('normalizes a non-Error rejected by asynchronous child creation', async () => { + const { ctx, parent } = await setup([]) + const creationFailure = 'non-Error child creation failure' + function inertOwner(): void {} + const ownerFiber = ctx.plugin(inertOwner) + await ownerFiber + const rejectWithNonError = (): Promise => { + // Deliberately violate the promise contract to exercise boundary normalization. + // eslint-disable-next-line @typescript-eslint/prefer-promise-reject-errors + return Promise.reject(creationFailure) + } + const rejectingOwnerCtx = { + agents: { create: rejectWithNonError }, + } as unknown as Context + const parentWithRejectingFactory = { + options: parent.options, + session: parent.session, + ctx: { + plugin(plugin: (inner: Context) => void) { + plugin(rejectingOwnerCtx) + return ownerFiber + }, + }, + } as unknown as Agent + + const run = startInProcessRun(ctx, { + prompt: [{ type: 'text', text: 'must never start' }], + parent: parentWithRejectingFactory, + }, {}) + await expect(run.result).rejects.toMatchObject({ + message: 'subagent child creation failed with a non-Error value', + cause: creationFailure, + }) + await run.dispose() + }) + + it('follows owner-fiber inertia when raw teardown was already in flight', async () => { + const { ctx, parent } = await setup([]) + const gate = Promise.withResolvers() + let inertia: Promise | undefined = gate.promise + const fakeFiber = { + dispose: vi.fn(() => undefined), + get inertia() { return inertia }, + } as unknown as Fiber & PromiseLike + const rejectingOwnerCtx = { + agents: { create: () => Promise.reject(new Error('creation stopped by teardown')) }, + } as unknown as Context + const parentWithDisposingOwner = { + options: parent.options, + session: parent.session, + ctx: { + plugin(plugin: (inner: Context) => void) { + plugin(rejectingOwnerCtx) + return fakeFiber + }, + }, + } as unknown as Agent + const run = startInProcessRun(ctx, { + prompt: [{ type: 'text', text: 'must never start' }], + parent: parentWithDisposingOwner, + }, {}) + + let settled = false + const disposing = run.dispose().then(() => { settled = true }) + await Promise.resolve() + await Promise.resolve() + expect(fakeFiber.dispose).toHaveBeenCalledOnce() + expect(settled).toBe(false) + + inertia = undefined + gate.resolve(undefined) + await disposing + await expect(run.result).resolves.toEqual({ output: [], stopReason: 'aborted' }) + }) + + it('does not attach an abort listener when provider ownership is already inactive', async () => { + const { ctx, parent } = await setup([]) + let providerCtx: Context | undefined + function provider(inner: Context): void { providerCtx = inner } + const providerFiber = await ctx.plugin(provider) + await providerFiber.dispose() + if (providerCtx === undefined) throw new Error('provider context was not captured') + const inactiveProviderCtx = providerCtx + + const controller = new AbortController() + const addListener = vi.spyOn(controller.signal, 'addEventListener') + expect(() => startInProcessRun(inactiveProviderCtx, { + prompt: [{ type: 'text', text: 'must never start' }], + parent, + signal: controller.signal, + }, {})).toThrow(/inactive context/) + expect(addListener).not.toHaveBeenCalled() + }) + it('drives a fresh child (no seed) to completion and returns its output', async () => { const { ctx, parent } = await setup([textResponse('driver child answer')]) - const run = startInProcessRun(ctx, { prompt: [{ type: 'text', text: 'do X' }], parent }, { providerName: 'spawn' }) + const run = startInProcessRun(ctx, { prompt: [{ type: 'text', text: 'do X' }], parent }, {}) const result = await run.result expect(result.stopReason).toBe('completed') expect(text(result.output)).toBe('driver child answer') @@ -59,9 +216,25 @@ describe('startInProcessRun', () => { await run.dispose() }) + it('snapshots the prompt before asynchronous child creation', async () => { + const { ctx, parent } = await setup([textResponse('done')]) + const prompt = [{ type: 'text' as const, text: 'original prompt' }] + const run = startInProcessRun(ctx, { prompt, parent }, {}) + + prompt[0]!.text = 'mutated after start' + prompt.push({ type: 'text', text: 'also injected' }) + await run.result + + const child = ctx.agents.get(run.id)! + const userMessage = child.session.events.find(event => event.type === 'user/message') + expect(userMessage?.type === 'user/message' && userMessage.data.content) + .toEqual([{ type: 'text', text: 'original prompt' }]) + await run.dispose() + }) + it('throws SubagentDepthError when the child would exceed maxDepth', async () => { const { ctx, parent } = await setup([]) - expect(() => startInProcessRun(ctx, { prompt: [{ type: 'text', text: 'p' }], parent, maxDepth: 0 }, { providerName: 'spawn' })) + expect(() => startInProcessRun(ctx, { prompt: [{ type: 'text', text: 'p' }], parent, maxDepth: 0 }, {})) .toThrow(SubagentDepthError) }) @@ -73,7 +246,7 @@ describe('startInProcessRun', () => { parent.send([{ type: 'text', text: 'parent q' }]) await parent.whenIdle() const seed = parent.session.events.slice() - const run = startInProcessRun(ctx, { prompt: [{ type: 'text', text: 'child q' }], parent }, { providerName: 'fork', seed }) + const run = startInProcessRun(ctx, { prompt: [{ type: 'text', text: 'child q' }], parent }, { seed }) const result = await run.result expect(result.stopReason).toBe('completed') expect(text(result.output)).toBe('seeded child reply') diff --git a/packages/subagent/subagent-spawn/src/index.ts b/packages/subagent/subagent-spawn/src/index.ts index 61da4eb560..835cf34aae 100644 --- a/packages/subagent/subagent-spawn/src/index.ts +++ b/packages/subagent/subagent-spawn/src/index.ts @@ -29,7 +29,7 @@ export const name = 'subagent-spawn' // output through the child's creation context, whose factory already requires // the tool service. Keeping it out of this backend's inject list preserves the // provider's independent apply timing. -export const inject = ['subagents', 'agents'] +export const inject = ['subagents'] /** Config: the registry name to register the provider under. */ export interface Config { @@ -59,7 +59,7 @@ class SpawnProvider implements SubagentProvider { // Fresh child: no seed. The shared driver mints ids, stamps cwd/lineage/ // depth, drives the one-shot (including the structured capture when the // request carries an outputSchema), and maps the result. - return startInProcessRun(this.ctx, request, { providerName: this.name }) + return startInProcessRun(this.ctx, request, {}) } } diff --git a/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts b/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts index 88f02070a6..a8dde937c0 100644 --- a/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts +++ b/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts @@ -1,4 +1,4 @@ -import { describe, expect, it, vi } from 'vitest' +import { describe, expect, it } from 'vitest' import { Context } from 'cordis' import Loader from '@cordisjs/plugin-loader' import LlmService from '@deepseek-ai/dsh-llm' @@ -160,6 +160,38 @@ describe('dsh-subagent-spawn', () => { await run.dispose() }) + it('a cancel from agent/queued maps a no-turn child log to aborted', async () => { + const { ctx, parent } = await setup([]) + ctx.on('agent/queued', (agent) => { + if (agent.id === run.id) run.cancel('queued-window') + }) + const run = ctx.subagents.start('spawn', { prompt: [{ type: 'text', text: 'p' }], parent }) + const result = await run.result + expect(result).toMatchObject({ stopReason: 'aborted', output: [] }) + const child = ctx.agents.get(run.id)! + expect(child.session.events.some(event => event.type === 'turn/end')).toBe(false) + await run.dispose() + }) + + it('dispose during async child creation waits for rollback and leaves no orphan', async () => { + const { ctx, parent } = await setup([]) + const beforeAgents = ctx.agents.list().length + const beforeSessions = ctx.sessions.list().length + const published: string[] = [] + ctx.on('session/created', () => void published.push('session/created')) + ctx.on('agent/created', () => void published.push('agent/created')) + ctx.on('agent/session-start', () => void published.push('agent/session-start')) + const run = ctx.subagents.start('spawn', { prompt: [{ type: 'text', text: 'p' }], parent }) + + // Same tick: the factory has reserved ids and entered its async setup + // transaction, but has not published the child yet. + await run.dispose() + await expect(run.result).resolves.toMatchObject({ stopReason: 'aborted', output: [] }) + expect(ctx.agents.list()).toHaveLength(beforeAgents) + expect(ctx.sessions.list()).toHaveLength(beforeSessions) + expect(published).toEqual([]) + }) + it('cancelling a running child settles the run as aborted (the abort bridge + cancel())', async () => { // 'hang' makes the child's model stream one chunk then wait until aborted. const controller = new AbortController() @@ -206,7 +238,7 @@ describe('dsh-subagent-spawn', () => { it('inherits the parent cwd into the child session', async () => { const { ctx } = await setup([textResponse('x')]) // A parent WITH a cwd (config agents have none, so create one explicitly). - const parentHandle = ctx.agents.create({ + const parentHandle = await ctx.agents.create({ agentId: AgentId('cwd-parent'), sessionId: SessionId('cwd-parent-session'), meta: { cwd: '/tmp/parent-workspace' }, @@ -223,7 +255,7 @@ describe('dsh-subagent-spawn', () => { it('uses request.agentOptions.model when the parent has no model of its own', async () => { const { ctx } = await setup([textResponse('explicit model child')]) // A parent with NO model (its own turns would need one supplied per-request). - const parentHandle = ctx.agents.create({ + const parentHandle = await ctx.agents.create({ agentId: AgentId('modelless-parent'), sessionId: SessionId('modelless-parent-session'), agentOptions: {}, @@ -305,15 +337,70 @@ describe('dsh-subagent-spawn', () => { await run.dispose() }) + it('a backend unload during child creation prevents every publication notification', async () => { + const ctx = new Context() + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(Invariants) + await ctx.plugin(AgentLoop, { agents: [] }) + await ctx.plugin(SubagentService) + const fiber = await ctx.plugin(spawn, { providerName: 'spawn' }) + ctx.llm.registerAdapter(['mock'], new MockAdapter([])) + const parent = ctx.agentLoop.create(AgentId('parent'), { model: 'mock' }) + const published: string[] = [] + ctx.on('session/created', () => void published.push('session/created')) + ctx.on('agent/created', () => void published.push('agent/created')) + ctx.on('agent/session-start', () => void published.push('agent/session-start')) + + const run = ctx.subagents.start('spawn', { + prompt: [{ type: 'text', text: 'must never run' }], parent, + }) + await fiber.dispose() + await run.result.catch(() => undefined) + await run.dispose() + + expect(ctx.agents.get(run.id)).toBeUndefined() + expect(published).toEqual([]) + }) + + it('a start racing an already-unloading backend cannot mint a run-owner fiber', async () => { + const ctx = new Context() + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + await ctx.plugin(AgentLoop, { agents: [] }) + await ctx.plugin(SubagentService) + const fiber = await ctx.plugin(spawn, { providerName: 'spawn' }) + const parent = ctx.agentLoop.create(AgentId('parent'), { model: 'mock' }) + const parentEffects = parent.ctx.fiber.getEffects().length + const published: string[] = [] + ctx.on('session/created', () => void published.push('session/created')) + ctx.on('agent/created', () => void published.push('agent/created')) + + const unloading = fiber.dispose() + expect(() => ctx.subagents.start('spawn', { + prompt: [{ type: 'text', text: 'must never start' }], parent, + })).toThrow(/inactive context/) + await unloading + + expect(parent.ctx.fiber.getEffects()).toHaveLength(parentEffects) + expect(published).toEqual([]) + }) + it('has the namespace-plugin export shape (no stray default)', () => { expect('default' in spawn).toBe(false) expect(spawn.name).toBe('subagent-spawn') - expect(spawn.inject).toEqual(['subagents', 'agents']) + expect(spawn.inject).toEqual(['subagents']) const loader = Object.create(Loader.prototype) as Loader const unwrapped = loader.unwrapExports(spawn) as Record expect(unwrapped).toBe(spawn) expect(unwrapped.name).toBe('subagent-spawn') - expect(unwrapped.inject).toEqual(['subagents', 'agents']) + expect(unwrapped.inject).toEqual(['subagents']) expect(typeof unwrapped.apply).toBe('function') }) @@ -369,11 +456,13 @@ describe('dsh-subagent-spawn', () => { it('an unknown toolFilter name fails the spawn loudly with no orphaned child', async () => { const { ctx, parent } = await setup([]) const before = ctx.agents.list().length - expect(() => ctx.subagents.start('spawn', { + const run = ctx.subagents.start('spawn', { prompt: [{ type: 'text', text: 'do X' }], parent, toolFilter: { deny: ['no_such_tool'] }, - })).toThrow(/unknown tool "no_such_tool"/) + }) + await expect(run.result).rejects.toThrow(/unknown tool "no_such_tool"/) + await run.dispose() expect(ctx.agents.list().length).toBe(before) }) }) @@ -381,19 +470,53 @@ describe('dsh-subagent-spawn', () => { it('spawning from a DISPOSING parent fails loud with no orphaned child (INACTIVE_EFFECT teaching error)', async () => { const { ctx } = await setup([]) // A handle-owned parent we can dispose (config agents dispose with the loop fiber). - const parentHandle = ctx.agents.create({ + const parentHandle = await ctx.agents.create({ agentId: AgentId('doomed-parent'), sessionId: SessionId('doomed-s'), agentOptions: { model: 'mock' }, }) await parentHandle.dispose() const before = ctx.agents.list().length - expect(() => ctx.subagents.start('spawn', { + const sessionsBefore = ctx.sessions.list().length + const published: string[] = [] + ctx.on('session/created', () => void published.push('session/created')) + ctx.on('agent/created', () => void published.push('agent/created')) + ctx.on('agent/session-start', () => void published.push('agent/session-start')) + const run = ctx.subagents.start('spawn', { prompt: [{ type: 'text', text: 'do X' }], parent: parentHandle.agent, - })).toThrow(/inactive context/) - // The freshly created child's disposal was initiated before the rethrow - // (fire-and-forget — start() throws synchronously); quiescence follows. - await vi.waitFor(() => { expect(ctx.agents.list().length).toBe(before) }) + }) + await expect(run.result).rejects.toThrow(/inactive context/) + await run.dispose() + expect(ctx.agents.list().length).toBe(before) + expect(ctx.sessions.list()).toHaveLength(sessionsBefore) + expect(published).toEqual([]) + }) + + it('parent disposal during the child setup transaction prevents every publication notification', async () => { + const { ctx } = await setup([]) + const parentHandle = await ctx.agents.create({ + agentId: AgentId('setup-race-parent'), + sessionId: SessionId('setup-race-parent-session'), + agentOptions: { model: 'mock' }, + }) + const published: string[] = [] + ctx.on('session/created', () => void published.push('session/created')) + ctx.on('agent/created', () => void published.push('agent/created')) + ctx.on('agent/session-start', () => void published.push('agent/session-start')) + + const run = ctx.subagents.start('spawn', { + prompt: [{ type: 'text', text: 'must never run' }], + parent: parentHandle.agent, + }) + // The factory has entered its awaited unpublished setup transaction. Parent + // ownership was installed before that await, so disposal wins without an + // observer ever seeing the child. + await parentHandle.dispose() + await expect(run.result).rejects.toThrow(/owner disposed during setup|inactive context/) + await run.dispose() + + expect(ctx.agents.get(run.id)).toBeUndefined() + expect(published).toEqual([]) }) }) diff --git a/packages/subagent/subagent/src/index.ts b/packages/subagent/subagent/src/index.ts index 0a7cea32e1..45287271c6 100644 --- a/packages/subagent/subagent/src/index.ts +++ b/packages/subagent/subagent/src/index.ts @@ -34,6 +34,8 @@ import { Context, Service } from 'cordis' import { scopeTarget } from '@deepseek-ai/dsh-scope' +import { assertSupportedOutputSchema } from '@deepseek-ai/dsh-tools' +import type { Scoped } from '@deepseek-ai/dsh-scope' import { HarnessError } from '@deepseek-ai/dsh-llm' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import type { Agent, AgentId } from '@deepseek-ai/dsh-agent' @@ -93,7 +95,7 @@ declare module 'cordis' { * @param info - which provider started which child agent. * @mode emit */ - 'subagent/start'(info: SubagentRunInfo): void + 'subagent/start'(this: Scoped, info: SubagentRunInfo): void /** * A subagent run settled — emitted when {@link SubagentRun.result} * resolves (any stop reason). Paired with {@link Events['subagent/start']}. @@ -104,7 +106,7 @@ declare module 'cordis' { * @param info - the run identity plus stop reason and final output. * @mode emit */ - 'subagent/end'(info: SubagentRunEndInfo): void + 'subagent/end'(this: Scoped, info: SubagentRunEndInfo): void } } @@ -224,13 +226,32 @@ export class SubagentService extends Service { * @returns the live run (its `result` resolves when the child settles). */ start(name: string, request: SubagentStartRequest): SubagentRun { + // Parent is the lifecycle scope identity accepted at start. Never reread it + // from the caller-owned request after the provider/result async boundary, + // or start/end could be dispatched into different agent scopes. + const parent = request.parent const provider = this.providers.get(name) if (!provider) { throw new SubagentError(`no subagent provider registered for "${name}"`, 'NO_PROVIDER') } this.assertCapabilities(provider, request) + if (request.outputSchema !== undefined) assertSupportedOutputSchema(request.outputSchema) - const run = provider.start(request) + // Detach every data field before crossing into a provider. Parent/signal + // are live identity capabilities and stay exact; the mutable request record + // and its arrays/objects are never retained, so every backend (including an + // async out-of-process one) observes the request accepted at start. + const accepted: SubagentStartRequest = { + prompt: structuredClone(request.prompt), + parent, + ...request.signal !== undefined ? { signal: request.signal } : {}, + ...request.agentOptions !== undefined ? { agentOptions: structuredClone(request.agentOptions) } : {}, + ...request.outputSchema !== undefined ? { outputSchema: structuredClone(request.outputSchema) } : {}, + ...request.maxDepth !== undefined ? { maxDepth: request.maxDepth } : {}, + ...request.toolFilter !== undefined ? { toolFilter: structuredClone(request.toolFilter) } : {}, + ...request.persona !== undefined ? { persona: request.persona } : {}, + } + const run = provider.start(accepted) // Emit `subagent/start` with PER-LISTENER containment (see {@link emitLifecycle}): // the run is already live, so neither a throwing subscriber escaping // `start()` (the caller would never receive the run to dispose it — a leaked @@ -238,7 +259,7 @@ export class SubagentService extends Service { // acceptable. `ctx.emit` halts the dispatch on the first throw, so a single // surrounding try/catch is not enough — each listener is invoked and // contained individually. - this.emitLifecycle('subagent/start', { provider: name, id: run.id }, request.parent) + this.emitLifecycle('subagent/start', { provider: name, id: run.id }, parent) // Emit `subagent/end` when the run settles. The result promise does not // reject on a child-level failure (it resolves with stopReason 'error'), // so a rejection here is an infrastructure fault — surface its stop reason @@ -268,9 +289,9 @@ export class SubagentService extends Service { } catch (error: unknown) { this.ctx.logger.warn(`subagent: could not clone ${name} output for subagent/end: ${String(error)}`) } - this.emitLifecycle('subagent/end', { provider: name, id: run.id, stopReason: result.stopReason, ...lastAssistantMessage !== undefined ? { lastAssistantMessage } : {} }, request.parent) + this.emitLifecycle('subagent/end', { provider: name, id: run.id, stopReason: result.stopReason, ...lastAssistantMessage !== undefined ? { lastAssistantMessage } : {} }, parent) }, - () => { this.emitLifecycle('subagent/end', { provider: name, id: run.id, stopReason: 'error' }, request.parent) }, + () => { this.emitLifecycle('subagent/end', { provider: name, id: run.id, stopReason: 'error' }, parent) }, ) return run } diff --git a/packages/subagent/subagent/src/types.ts b/packages/subagent/subagent/src/types.ts index 5e6553c48a..a95fbae623 100644 --- a/packages/subagent/subagent/src/types.ts +++ b/packages/subagent/subagent/src/types.ts @@ -120,9 +120,11 @@ export interface SubagentResult { /** The child's final assistant output (the last assistant message's content). */ output: ContentBlock[] /** - * The structured result, present IFF the request carried an `outputSchema` - * AND the provider honored it. Shape is validated against the request schema - * by the provider; `unknown` here because the seam is schema-agnostic. + * The structured result after a requested `outputSchema` was successfully + * satisfied. Requesting a schema does not guarantee presence: a provider can + * end with `stopReason: 'error'` when the child fails or finishes without a + * valid capture. Shape is validated against the request schema by the + * provider; `unknown` here because the seam is schema-agnostic. */ structured?: unknown /** Why the run ended. A non-`completed` reason means `output` may be partial. */ diff --git a/packages/subagent/subagent/tests/service.spec.ts b/packages/subagent/subagent/tests/service.spec.ts index afacd48a9b..3a16b19e22 100644 --- a/packages/subagent/subagent/tests/service.spec.ts +++ b/packages/subagent/subagent/tests/service.spec.ts @@ -2,6 +2,7 @@ import { describe, expect, it, vi } from 'vitest' import { Context } from 'cordis' import { AgentId, type Agent } from '@deepseek-ai/dsh-agent' import { HarnessError } from '@deepseek-ai/dsh-llm' +import { carrierKeyOf } from '@deepseek-ai/dsh-scope' import SubagentService, { SubagentError, type SubagentCapabilities, @@ -227,6 +228,45 @@ describe('SubagentService', () => { expect(ended).toHaveBeenCalledWith(expect.objectContaining({ provider: 'events', id: run.id, stopReason: 'completed' })) }) + it('pins start and end to the parent accepted at start despite caller mutation', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const gate = Promise.withResolvers() + let acceptedRequest: SubagentStartRequest | undefined + ctx.subagents.registerProvider({ + name: 'deferred', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: (accepted) => { + acceptedRequest = accepted + return { + id: AgentId('deferred-child'), + result: gate.promise, + cancel() {}, + async dispose() {}, + } + }, + }) + const accepted = fakeParent('accepted-parent') + const replacement = fakeParent('replacement-parent') + const keys: unknown[] = [] + ctx.on('subagent/start', function () { keys.push(carrierKeyOf(this)) }) + ctx.on('subagent/end', function () { keys.push(carrierKeyOf(this)) }) + const request = baseRequest({ parent: accepted }) + + const run = ctx.subagents.start('deferred', request) + request.parent = replacement + request.prompt[0] = { type: 'text', text: 'mutated prompt' } + expect(acceptedRequest?.parent).toBe(accepted) + expect(acceptedRequest?.prompt).toEqual([{ type: 'text', text: 'do a thing' }]) + expect(acceptedRequest?.prompt).not.toBe(request.prompt) + gate.resolve({ output: [], stopReason: 'completed' }) + await run.result + await Promise.resolve() + + expect(keys).toEqual([accepted, accepted]) + }) + it('carries lastAssistantMessage (the child output) onto the end event', async () => { const ctx = new Context() await ctx.plugin(SubagentService) diff --git a/packages/support/invariants/src/index.ts b/packages/support/invariants/src/index.ts index 8fd425392d..e634ec9cc0 100644 --- a/packages/support/invariants/src/index.ts +++ b/packages/support/invariants/src/index.ts @@ -390,10 +390,12 @@ export function apply(ctx: Context, config: Config = {}): void { 'agent/session-prefix': args => args[0], 'agent/step-result': args => args[0], 'agent/turn-continuation': args => args[0], + 'agent/turn-stop': args => args[0], 'agent/error': args => args[0], 'tools/pre-execute': args => (args[0] as ToolExecution).agent, 'tools/execute': args => (args[0] as ToolExecution).agent, 'tools/post-execute': args => (args[0] as ToolExecution).agent, + 'tools/result': args => (args[0] as ToolExecution).agent, 'system-prompt/assemble': args => (args[1] as AssembleContext).scope, 'session/created': null, 'session/event': null, @@ -429,11 +431,11 @@ export function apply(ctx: Context, config: Config = {}): void { // --- Setup-drives invariant --------------------------------------------- // - // CreateAgentOptions.setup REGISTERS the agent's scoped world; it must not - // DRIVE the agent — an inject() there opens a turn before - // `agent/session-start`, inverting the "session-start fires before the - // first turn" contract every bridge keys on. A turn/start appended to a - // live agent's session before its agent/session-start fired is therefore a + // CreateAgentOptions.setup COMPOSES the agent's scoped world; it must not + // DRIVE the agent. ReactLoopAgent rejects every driving verb structurally + // until rollback-covered publication reaches the session-start boundary; this event-level invariant remains the + // cross-implementation backstop for alternate Agent implementations and raw + // session writes. A turn/start appended before agent/session-start is a // creation-time misuse, reported at the appending call site. Sessions of // agents that exist BEFORE this plugin applies are marked started (their // ordering is unknowable after the fact — never a false positive on HMR). @@ -450,7 +452,7 @@ export function apply(ctx: Context, config: Config = {}): void { if (owner === undefined) return throw new InvariantError( `agent "${owner.id}": a turn opened before agent/session-start fired — ` - + 'CreateAgentOptions.setup registers the scoped world, it must not drive the agent ' + + 'CreateAgentOptions.setup composes the scoped world, it must not drive the agent ' + '(send/steer/inject belong after creation returns)') }) diff --git a/packages/support/invariants/tests/invariants.spec.ts b/packages/support/invariants/tests/invariants.spec.ts index 0186aaf31a..baf23d3d46 100644 --- a/packages/support/invariants/tests/invariants.spec.ts +++ b/packages/support/invariants/tests/invariants.spec.ts @@ -828,11 +828,15 @@ describe('scoped-dispatch invariants', () => { ['agent/pre-step', [agent, 1, 1, '', new AbortController().signal]], ['agent/prompt-submit', [agent, [], { kind: 'user' }, () => Promise.resolve({ kind: 'allow' })]], ['agent/request', [agent, 1, 1, { model: 'm' }, () => Promise.resolve({ model: 'm' })]], + ['agent/session-prefix', [agent, [], new AbortController().signal, () => Promise.resolve([])]], ['agent/step-result', [agent, 1, 1, { role: 'assistant', content: [] }, () => Promise.resolve({ role: 'assistant', content: [] })]], ['agent/turn-continuation', [agent, 1, { action: 'stop' }, () => Promise.resolve({ action: 'stop' })]], + ['agent/turn-stop', [agent, 1]], ['agent/error', [agent, 1, 0, new Error('x')]], ['tools/pre-execute', [{ callId: 'c', name: 't', arguments: {}, agent }, () => Promise.resolve({ kind: 'allow' })]], + ['tools/execute', [{ callId: 'c', name: 't', arguments: {}, agent }, () => Promise.resolve({ callId: 'c', content: [], isError: false })]], ['tools/post-execute', [{ callId: 'c', name: 't', arguments: {}, agent }, { callId: 'c', content: [], isError: false }, () => Promise.resolve({ kind: 'accept' })]], + ['tools/result', [{ callId: 'c', name: 't', arguments: {}, agent }, { callId: 'c', content: [], isError: false }]], ] for (const [event, args] of rows) { const subject = event.startsWith('tools/') ? agent : agent @@ -870,7 +874,7 @@ describe('scoped-dispatch invariants', () => { }).not.toThrow() }) - it('rejects a turn opened before agent/session-start (setup drives the agent)', async () => { + it('backstops alternate agents that open a turn before agent/session-start', async () => { const ctx = await scopedCtx() // A live agent whose session is in the store but whose session-start has // not fired: appending turn/start must throw the teaching error. diff --git a/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts b/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts index ef5c52030f..30a7307515 100644 --- a/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts +++ b/packages/timeout/timeout-policy/tests/timeout-policy.spec.ts @@ -11,7 +11,7 @@ import { Context } from 'cordis' import Loader from '@cordisjs/plugin-loader' import { CallId, HarnessError } from '@deepseek-ai/dsh-llm' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' -import ToolRegistry, { defineTool, type ToolExecution, type ToolExecutionResult, type PostToolDecision } from '@deepseek-ai/dsh-tools' +import ToolRegistry, { defineTool, type ToolExecutionInput, type ToolExecutionResult, type PostToolDecision } from '@deepseek-ai/dsh-tools' import * as timeoutPolicy from '@deepseek-ai/dsh-timeout-policy' import { TOOL_TIMEOUT, toolTimeoutResult } from '@deepseek-ai/dsh-timeout-policy' @@ -193,7 +193,7 @@ describe('dsh-timeout-policy real-load-path guard', () => { const loader = Object.create(Loader.prototype) as Loader const unwrapped = loader.unwrapExports(timeoutPolicy) as Parameters[0] const fiber = await ctx.plugin(unwrapped) - const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'fast', arguments: {} } satisfies ToolExecution) + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'fast', arguments: {} } satisfies ToolExecutionInput) expect(result.isError).toBe(false) await fiber.dispose() }) diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index b5e03d772d..f6ac2e27f7 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -591,17 +591,27 @@ export function apply(ctx: Context, config: AcpConfig): void { return Promise.resolve() }, - newSession(params: NewSessionRequest): Promise { + async newSession(params: NewSessionRequest): Promise { assertOpen() validateWorkspaceParams(params) validateMcpServers(params) const sessionId = SessionId(randomUUID()) - const handle = agents.create({ + const handle = await agents.create({ agentId: AgentId(sessionId), sessionId, meta: { cwd: params.cwd }, agentOptions: agentOptions(config), }) + // Creation is now asynchronous because it awaits the unpublished setup + // transaction. A client disconnect can therefore close this bridge + // after the entry check but before the handle resolves; never install a + // post-close record that quiesce() could not have seen. + /* v8 ignore next 4 -- the in-memory transport rejects the in-flight RPC + immediately on close; real stdio may let the handler resume */ + if (closed) { + await handle.dispose() + throw internalError('connection closed during session/new') + } bySession.set(handle.agent, sessionId) sessions.set(sessionId, { sessionId, @@ -611,7 +621,7 @@ export function apply(ctx: Context, config: AcpConfig): void { terminalEnabled: terminalOutputCap, inflight: undefined, }) - return Promise.resolve({ sessionId }) + return { sessionId } }, async loadSession(params: LoadSessionRequest): Promise { diff --git a/packages/ui/acp/tests/dispose.spec.ts b/packages/ui/acp/tests/dispose.spec.ts index ac092d9d16..037d00f17e 100644 --- a/packages/ui/acp/tests/dispose.spec.ts +++ b/packages/ui/acp/tests/dispose.spec.ts @@ -229,10 +229,10 @@ describe('acp bridge — disposal & HMR safety', () => { // dispose one handle, and assert the other survives, registered and // queryable, with its session still in the store. const harness = await makeBridgeHarness({ storageDir, script: [] }) - const handleA = harness.ctx.agents.create({ + const handleA = await harness.ctx.agents.create({ agentId: AgentId('sib-a'), sessionId: SessionId('sib-a'), agentOptions: { model: 'mock' }, }) - const handleB = harness.ctx.agents.create({ + const handleB = await harness.ctx.agents.create({ agentId: AgentId('sib-b'), sessionId: SessionId('sib-b'), agentOptions: { model: 'mock' }, }) expect(harness.ctx.agents.get(AgentId('sib-a'))).toBe(handleA.agent) @@ -261,7 +261,7 @@ describe('acp bridge — disposal & HMR safety', () => { // a clean turn, dispose, and assert the session was STILL removed. const harness = await makeBridgeHarness({ storageDir, script: [textResponse('ok')] }) harness.ctx.on('agent/disposed', () => { throw new Error('boom disposed listener') }) - const handle = harness.ctx.agents.create({ + const handle = await harness.ctx.agents.create({ agentId: AgentId('guard-a'), sessionId: SessionId('guard-a'), agentOptions: { model: 'mock' }, }) handle.agent.send([{ type: 'text', text: 'go' }]) @@ -282,7 +282,7 @@ describe('acp bridge — disposal & HMR safety', () => { // first call's await agent.done + final flush finished. Every caller must // observe the same quiescence boundary. const harness = await makeBridgeHarness({ storageDir, script: ['hang'] }) - const handle = harness.ctx.agents.create({ + const handle = await harness.ctx.agents.create({ agentId: AgentId('conc-a'), sessionId: SessionId('conc-a'), agentOptions: { model: 'mock' }, }) // Drive a turn that hangs in the model stream, so the loop is mid-turn when diff --git a/packages/ui/acp/tests/edges.spec.ts b/packages/ui/acp/tests/edges.spec.ts index 69c935139d..143bd7193c 100644 --- a/packages/ui/acp/tests/edges.spec.ts +++ b/packages/ui/acp/tests/edges.spec.ts @@ -27,7 +27,7 @@ describe('acp bridge — demux & config edges', () => { await harness.client.newSession({ cwd: process.cwd(), mcpServers: [] }) const before = harness.updates.length - const { agent: foreign } = harness.ctx.agents.create({ agentId: AgentId('foreign'), sessionId: SessionId('foreign-session'), agentOptions: { model: 'mock' } }) + const { agent: foreign } = await harness.ctx.agents.create({ agentId: AgentId('foreign'), sessionId: SessionId('foreign-session'), agentOptions: { model: 'mock' } }) foreign.send([{ type: 'text', text: 'hi' }]) await foreign.whenIdle() await new Promise(r => setTimeout(r, 10)) diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.e2e.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.e2e.ts index 6353868a02..1d6f61432a 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.e2e.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.e2e.ts @@ -61,7 +61,7 @@ return { prose, containsFour: judged === null ? null : judged.containsFour }` describe.skipIf(!process.env.DEEPSEEK_API_KEY)('worker workflow engine with-key e2e', () => { it('runs a two-phase script in a worker thread over real children, one through the structured runtime', async () => { ctx = await harness() - const parentHandle = ctx.agents.create({ + const parentHandle = await ctx.agents.create({ agentId: AgentId('wf-worker-e2e-parent'), sessionId: 'wf-worker-e2e-session' as never, agentOptions: { model: 'deepseek-v4-flash' }, diff --git a/scripts/gen-cordis-catalog.ts b/scripts/gen-cordis-catalog.ts index 9b8141807e..ccf10f712a 100644 --- a/scripts/gen-cordis-catalog.ts +++ b/scripts/gen-cordis-catalog.ts @@ -91,7 +91,9 @@ export const LINK_MAP: Record = { TurnEndReason: 'session.md', ToolDefinition: 'tools.md', ToolExecution: 'tools.md', + ToolExecutionInput: 'tools.md', ToolExecutionResult: 'tools.md', + ToolExecutionToken: 'tools.md', BashExecRequest: 'bash.md', BashExecSpec: 'bash.md', BashRunResult: 'bash.md', diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 70fe8f2a85..1acdd5f5ff 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -120,10 +120,10 @@ const SERVICE_ROLES: ServiceRole[] = [ { key: 'tools', pkg: 'tools', - title: 'Tool registry and execution waterfall', + title: 'Tool registry and guarded execution pipeline', mode: 'core', consumers: ['agent-loop', 'tool-ask-user', 'tool-bash', 'tool-cordis', 'tool-fs', 'tool-subagent', 'tool-todo', 'tool-web', 'acp'], - note: 'Registers tool definitions, exposes schemas to the prompt, and routes calls through tools/pre-execute and tools/post-execute.', + note: 'Registers capabilities, owns Code Mode transport, and routes calls through pre-policy, monotonic guards, around dispatch, post-policy, and final-result observation.', }, { key: 'userInteraction', @@ -217,6 +217,9 @@ const SERVICE_ROLES: ServiceRole[] = [ ] const DYNAMIC_EVENT_DISPATCHERS: Array<{ event: string; pkg: string; method: string }> = [ + // tools/result uses ctx.events.dispatch directly so the registry can await + // every observer while containing each callback independently. + { event: 'tools/result', pkg: 'tools', method: 'events.dispatch' }, // Subagent lifecycle events intentionally bypass ctx.emit and call // ctx.events.dispatch directly so one throwing listener cannot starve later // listeners or strand an already-started child run. @@ -534,12 +537,12 @@ function collectEventRelations(): Map { if (method === 'on') { const event = eventArg(node.arguments, method) if (event) ensure(event).listeners.add(leaf) - } else if (method === 'emit' || method === 'parallel' || method === 'serial' || method === 'waterfall') { + } else if (method === 'emit' || method === 'parallel' || method === 'serial' || method === 'strictSerial' || method === 'waterfall') { const event = eventArg(node.arguments, method) if (event) { const relation = ensure(event) const methods = relation.dispatchers.get(leaf) ?? new Set() - methods.add(method) + methods.add(method === 'strictSerial' ? 'strictSerial (serial)' : method) relation.dispatchers.set(leaf, methods) } } @@ -566,13 +569,13 @@ function isCordisContextReceiver(expr: ts.PropertyAccessExpression, sf: ts.Sourc const target = expr.expression.getText(sf) if (target === 'ctx' || target === 'this.ctx') return true // Scoped-dispatch spellings (the agent-scoping seam): the loop's fused - // dispatcher (`events` from `agentEvents(ctx, agent)`), the agent's own - // context handle (`this.loopCtx`), and the session store's captured - // dispatch context (`emitCtx`). Conventional receiver names, pinned by the - // fused-dispatch convention; a rename here must update this list (the - // producer/consumer matrix silently losing a dispatcher is the failure - // mode this list exists to prevent). - return target === 'events' || target === 'this.loopCtx' || target === 'emitCtx' + // dispatcher (`events` from `agentEvents(ctx, agent)`), an agent's setup + // context (`childCtx`), the agent's own context handle (`this.loopCtx`), and + // the session store's captured dispatch context (`emitCtx`). Conventional + // receiver names, pinned by the fused-dispatch convention; a rename here + // must update this list (the producer/consumer matrix silently losing a + // dispatcher or listener is the failure mode this list exists to prevent). + return target === 'events' || target === 'childCtx' || target === 'this.loopCtx' || target === 'emitCtx' } function eventArg(args: ts.NodeArray, method: string): string | undefined { @@ -690,6 +693,7 @@ function renderLifecycle(): string { ' Tools-->>Session: tool-owned events when applicable', ` Driver->>Session: ${mermaidCode('tool/result')} and ${mermaidCode('step/end')}`, ` Driver->>Hooks: ${mermaidCode('agent/turn-continuation')} waterfall`, + ` Driver->>Hooks: ${mermaidCode('agent/turn-stop')} serial terminal checkpoint`, ` Driver->>Session: ${mermaidCode('turn/end')}`, ` Driver->>Persistence: ${mermaidCode('session/flush')} parallel checkpoint`, ` Driver-->>SDK: ${mermaidCode('agent/status')} idle`, @@ -705,7 +709,7 @@ function renderToolPipeline(): string { const maintenance = 'curated Mermaid flow; exact tool schemas and event signatures live in generated catalogs' return [ ...generatedHeader('Tool Execution Pipeline'), - 'This graph shows where policy, hooks, sandboxing, filesystem guards, result rewriting, and UI rendering fit without changing the loop. The key extension points are the `tools/pre-execute`, `tools/execute`, and `tools/post-execute` waterfalls.', + 'This graph shows where policy, hooks, sandboxing, filesystem guards, result rewriting, final-outcome observation, and UI rendering fit without changing the loop. The transformable extension points are the `tools/pre-execute`, `tools/execute`, and `tools/post-execute` waterfalls; monotonic guards and `tools/result` are the owner-enforced boundaries around them.', '', '```mermaid', 'flowchart TD', @@ -713,19 +717,24 @@ function renderToolPipeline(): string { ` toolCall["Session event: ${mermaidCode('tool/call')}
logged before execution"]`, ' presentCall["UI pending card
presentCall(args)"]', ` pre["${mermaidCode('tools/pre-execute')} waterfall
hooks, permission, sandbox"]`, + ' guards["Registered monotonic guards
deny or abstain; identity protected"]', ' denied["deny or ask
tool body skipped"]', ` around["${mermaidCode('tools/execute')} waterfall
timeout, retry, metrics (around dispatch)"]`, ' toolBody["Registered tool execute() body"]', ` fsGate["${mermaidCode('fs/write-intent')} or ${mermaidCode('fs/edit-intent')}
tool-fs mutations only"]`, ` owned["Tool-owned session events
${mermaidCode('todo/write')}, ${mermaidCode('fs/observed')}, ${mermaidCode('hook/invoked')}, ${mermaidCode('hook/result')}, ${mermaidCode('tool/code-dispatch')}"]`, ` post["${mermaidCode('tools/post-execute')} waterfall
accept, block, replace, add context"]`, + ` final["${mermaidCode('tools/result')} parallel notification
frozen authoritative outcome"]`, ' context["Buffered additionalContext
context/message after all tool results"]', ` toolResult["Session event: ${mermaidCode('tool/result')}
single model-facing outcome"]`, + ' allResults["All calls in the step settled
and tool/result events recorded"]', ' presentResult["UI completed card
presentResult(args, result)"]', ' model --> toolCall', ' toolCall --> presentCall', ' toolCall --> pre', - ' pre -->|allow| around', + ' pre -->|allow| guards', + ' guards -->|allow| around', + ' guards -->|deny| denied', ' around --> toolBody', ' pre -->|deny or ask| denied', ' denied --> post', @@ -734,12 +743,14 @@ function renderToolPipeline(): string { ' toolBody --> owned', ' toolBody --> around', ' around --> post', - ' post --> context', - ' post --> toolResult', + ' post --> final', + ' final --> toolResult', ' toolResult --> presentResult', + ' toolResult --> allResults', + ' allResults --> context', '```', '', - 'Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate; hook bridges and future permission prompts live on the generic pre/post tool waterfalls; and around-dispatch concerns like the tool-call timeout policy (`@deepseek-ai/dsh-timeout-policy`) wrap core dispatch on `tools/execute`. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service. Code Mode rides the same pipeline twice over: `run_code` is itself a registered tool body, and each tool call its program makes re-enters `ctx.tools.execute()` through BOTH waterfalls — serialized one at a time, logged as a `tool/code-dispatch` session event, with a deny surfacing to the program as a binding rejection (a sub-call\'s `additionalContext` is deliberately dropped — no safe outlet mid-run preserves call/result adjacency).', + 'Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate; hook bridges and future permission prompts live on the generic pre/post tool waterfalls; owner policy that must not be reordered uses registered guards; and around-dispatch concerns like the tool-call timeout policy (`@deepseek-ai/dsh-timeout-policy`) wrap core dispatch on `tools/execute`. The awaited `tools/result` notification observes the immutable final outcome after every transform, lossless-JSON validation, and outer error normalization. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service. Code Mode rides the whole pipeline twice over: `run_code` is the reserved registry-owned transport whose body enters the pipeline, and each tool call its program makes re-enters `ctx.tools.execute()` — serialized one at a time, carrying the outer execution\'s opaque token for correlation, and logged as a `tool/code-dispatch` session event, with a deny surfacing to the program as a binding rejection (a sub-call\'s `additionalContext` is deliberately dropped — no safe outlet mid-run preserves call/result adjacency).', '', ...maintenanceFooter(maintenance), ].join('\n') diff --git a/scripts/gen-tool-catalog.ts b/scripts/gen-tool-catalog.ts index 62e40907b8..3f96976a03 100644 --- a/scripts/gen-tool-catalog.ts +++ b/scripts/gen-tool-catalog.ts @@ -137,7 +137,7 @@ const TOOL_PACKAGES: ToolPackage[] = [ toolsConfig: { mode: 'code' }, async mount() {}, note: - 'Registered by the tool registry itself under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the ONLY wire tool; the other registered tools are declared to the model as a generated TypeScript SDK prompt section instead, and a program calls them through port-bridged bindings that dispatch through the ordinary tools/pre-execute → tools/post-execute pipeline, one at a time.', + 'Owned by the tool registry as a reserved transport outside filterable capability layers under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the registry\'s only canonical wire contribution; the other visible capabilities are declared in a protected TypeScript SDK section, and a program calls them through serialized bindings that re-enter the complete guarded tool pipeline and link each nested execution to this outer result.', }, { pkg: '@deepseek-ai/dsh-tool-bash', diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index 881ce06578..b8882f96e8 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -14,6 +14,7 @@ { "doc": "docs/core-data-structures/core.md", "symbol": "HookContext", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "PromptDecision", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "ContinuationDecision", "source": "packages/core/agent/src/types.ts" }, + { "doc": "docs/core-data-structures/core.md", "symbol": "ContinuationStop", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "SessionStartSource", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "StreamChunk", "source": "packages/llm/llm/src/types.ts" }, @@ -39,7 +40,10 @@ { "doc": "docs/core-data-structures/tools.md", "symbol": "SchemaProp", "source": "packages/core/tools/src/schema.ts" }, { "doc": "docs/core-data-structures/tools.md", "symbol": "SchemaSpec", "source": "packages/core/tools/src/schema.ts" }, { "doc": "docs/core-data-structures/tools.md", "symbol": "InferArgs", "source": "packages/core/tools/src/schema.ts" }, + { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolExecutionToken", "source": "packages/core/tools/src/index.ts" }, + { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolExecutionInput", "source": "packages/core/tools/src/index.ts" }, { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolExecution", "source": "packages/core/tools/src/index.ts" }, + { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolGuard", "source": "packages/core/tools/src/index.ts" }, { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolExecutionResult", "source": "packages/core/tools/src/index.ts" }, { "doc": "docs/core-data-structures/tools.md", "symbol": "PreToolDecision", "source": "packages/core/tools/src/index.ts" }, { "doc": "docs/core-data-structures/tools.md", "symbol": "PostToolDecision", "source": "packages/core/tools/src/index.ts" }, From 36c94fbe3e228389ee37d306747c092757a6c8fd Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 22:55:40 +0800 Subject: [PATCH 191/232] docs: align the agent-scope contracts --- docs/agent-lifecycle.md | 1 + docs/architecture.md | 11 +- docs/capability-seams.md | 4 +- docs/config-catalog.md | 16 +- docs/cookbook/adding-a-tool.md | 12 +- docs/cookbook/extension-cookbook.md | 11 +- docs/cordis-catalog/events.md | 80 +- docs/cordis-catalog/services.md | 28 +- docs/core-data-structures/core.md | 10 +- docs/core-data-structures/subagent.md | 4 +- docs/core-data-structures/tools.md | 51 +- docs/event-producer-consumer.md | 46 +- docs/persistence-catalog.md | 2 +- .../2026-06-11-microkernel-event-taxonomy.md | 7 +- ...-18-agent-lifecycle-and-ownership-seams.md | 6 +- .../2026-07-08-agent-scope-contexts.md | 714 ++++++++++++++---- .../feature/2026-06-15-code-mode.md | 42 +- .../feature/2026-06-30-interception-seams.md | 32 +- .../feature/2026-07-05-dynamic-workflows.md | 15 +- .../2026-06-14-acp-agent-client-protocol.md | 2 +- .../2026-06-30-pre-tool-input-rewrite.md | 19 +- ...026-07-04-prune-dead-core-spine-surface.md | 8 +- docs/tool-catalog.md | 4 +- docs/tool-execution-pipeline.md | 17 +- examples/README.md | 2 +- examples/coding-agent/README.md | 2 +- packages/core/README.md | 2 +- packages/core/agent-core/README.md | 2 +- packages/core/agent-loop/README.md | 32 +- packages/core/agent/README.md | 46 +- packages/core/scope/README.md | 3 +- packages/core/session/README.md | 14 +- packages/core/system-prompt/README.md | 16 +- packages/core/tools/README.md | 43 +- packages/subagent/README.md | 4 +- .../subagent/subagent-inprocess/README.md | 18 +- packages/subagent/subagent-spawn/README.md | 4 +- 37 files changed, 901 insertions(+), 429 deletions(-) diff --git a/docs/agent-lifecycle.md b/docs/agent-lifecycle.md index d6d9ab1ba7..fa2c4bd0fb 100644 --- a/docs/agent-lifecycle.md +++ b/docs/agent-lifecycle.md @@ -39,6 +39,7 @@ sequenceDiagram Tools-->>Session: tool-owned events when applicable Driver->>Session: tool/result and step/end Driver->>Hooks: agent/turn-continuation waterfall + Driver->>Hooks: agent/turn-stop serial terminal checkpoint Driver->>Session: turn/end Driver->>Persistence: session/flush parallel checkpoint Driver-->>SDK: agent/status idle diff --git a/docs/architecture.md b/docs/architecture.md index 7f2cc51f3e..cb2a61fe4c 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -60,7 +60,9 @@ A **session** is one agent's append-only event log. A **turn** drains one queued ### Turn Flow ```text -create agent -> mint agent scope (agent.ctx) -> run creation setup -> emit agent/session-start(source) +reserve ids -> mint agent.ctx -> await unpublished setup + -> enter session + agent -> session/created -> agent/created + -> enable driving -> agent/session-start(source) -> start driver forever: wait for queued messages emit agent/status(running) @@ -82,11 +84,12 @@ forever: 'assistant/message' each tool call: 'tool/call' - tools/pre-execute -> tools/execute -> tools/post-execute + tools/pre-execute -> monotonic guards -> tools/execute -> tools/post-execute -> tools/result 'tool/result' append post-tool context and steering 'step/end' agent/turn-continuation + agent/turn-stop (terminal policy) stop unless tools or continuation policy ask for another step 'turn/end' checkpoint persistence and notify idle/running status @@ -94,7 +97,7 @@ forever: Prompt assembly is single-path: `renderPrompt(assemble({ agent }))` IS the system prompt sent to the model. Plugins contribute ordered sections (static or computed from the per-call `AssembleContext`), tool schemas, and named variables interpolated as `{{name}}` at render — strictly, so an unknown or valueless reference fails the turn instead of shipping a hole. `dsh-system-prompt` owns the openers — the static `harness:identity` section (order −100) and the deployment's persona (order 0, its `persona` config, shared context-wide) — while the shipped loop registers the `model`/`cwd` variables; prompt-fact ownership is pinned by the [prompt-variables RFC](rfc/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md). -Post-tool context lands after all tool results so tool-call/result adjacency stays stable. Steering drains between steps; leftover steering after a turn is re-queued as ordinary input. +Post-tool context lands after all tool results so tool-call/result adjacency stays stable. Steering drains between steps; ordinary leftover steering after a turn is re-queued as input. A terminal `agent/turn-stop` is the explicit exception: it runs after ordinary continuation and steering folding, then remains authoritative through turn close and flush so steering from those later listeners is discarded rather than becoming another step or turn; ordinary queued prompts are preserved. ### Failure Boundaries @@ -148,7 +151,7 @@ New behavior should attach to a documented extension point; changing the shipped | Add a model-facing capability | register a tool on `ctx.tools`; schemas flow into prompt assembly | | Add command execution | implement and register a `ctx.bash` backend | | Add filesystem access or policy | implement a `ctx.fs` provider or listen on `fs/*` policy events | -| Intercept prompts, requests, tool use, or continuation | listen on the relevant `agent/*` or `tools/*` waterfall | +| Intercept prompts, requests, tool use, or continuation | listen on the relevant `agent/*` or `tools/*` waterfall; use serial `agent/turn-stop` for a monotonic terminal stop | | Add a session-stable request prefix outside history | compose it on `agent/session-prefix`, once per loop instance; logged on the request header | | Add UI or editor integration | drive `ctx.agents` and render from `session/event` | | Add durable session state | add a `SessionEventMap` member and render/replay from the log | diff --git a/docs/capability-seams.md b/docs/capability-seams.md index 1c24a2916e..5f56be9da8 100644 --- a/docs/capability-seams.md +++ b/docs/capability-seams.md @@ -29,7 +29,7 @@ flowchart LR pkg_tools["tools"] pkg_tool_fs["tool-fs"] pkg_tool_web["tool-web"] - svc_tools["ctx.tools
Tool registry and execution waterfall"] + svc_tools["ctx.tools
Tool registry and guarded execution pipeline"] pkg_tool_ask_user["tool-ask-user"] pkg_tool_bash["tool-bash"] pkg_tool_cordis["tool-cordis"] @@ -155,7 +155,7 @@ flowchart LR | `ctx.sessions` | `core` | [`session`](../packages/core/session) | - | [`agent-loop`](../packages/core/agent-loop), [`agent`](../packages/core/agent), [`session-persistence`](../packages/session-persistence/session-persistence), [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`invariants`](../packages/support/invariants) | - | Owns append-only Session instances and emits the durable session event feed. | | `ctx.sessionPersistence` | `seam` | [`session-persistence`](../packages/session-persistence/session-persistence) | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp) | - | Backends persist the same SessionEvent vocabulary; apps choose a backend at composition time. | | `ctx.systemPrompt` | `core` | [`system-prompt`](../packages/core/system-prompt) | - | [`agent-loop`](../packages/core/agent-loop), [`tools`](../packages/core/tools), [`tool-fs`](../packages/fs/tool-fs), [`tool-web`](../packages/web/tool-web) | - | Collects prompt sections and model-facing tool schemas for each step. | -| `ctx.tools` | `core` | [`tools`](../packages/core/tools) | - | [`agent-loop`](../packages/core/agent-loop), [`tool-ask-user`](../packages/ui/tool-ask-user), [`tool-bash`](../packages/bash/tool-bash), [`tool-cordis`](../packages/cordis/tool-cordis), [`tool-fs`](../packages/fs/tool-fs), [`tool-subagent`](../packages/subagent/tool-subagent), [`tool-todo`](../packages/todo/tool-todo), [`tool-web`](../packages/web/tool-web), [`acp`](../packages/ui/acp) | - | Registers tool definitions, exposes schemas to the prompt, and routes calls through tools/pre-execute and tools/post-execute. | +| `ctx.tools` | `core` | [`tools`](../packages/core/tools) | - | [`agent-loop`](../packages/core/agent-loop), [`tool-ask-user`](../packages/ui/tool-ask-user), [`tool-bash`](../packages/bash/tool-bash), [`tool-cordis`](../packages/cordis/tool-cordis), [`tool-fs`](../packages/fs/tool-fs), [`tool-subagent`](../packages/subagent/tool-subagent), [`tool-todo`](../packages/todo/tool-todo), [`tool-web`](../packages/web/tool-web), [`acp`](../packages/ui/acp) | - | Registers capabilities, owns Code Mode transport, and routes calls through pre-policy, monotonic guards, around dispatch, post-policy, and final-result observation. | | `ctx.userInteraction` | `seam` | [`user-interaction`](../packages/ui/user-interaction) | [`stdio-agent`](../packages/ui/stdio-agent), [`acp`](../packages/ui/acp) | [`tool-ask-user`](../packages/ui/tool-ask-user), [`stdio-agent`](../packages/ui/stdio-agent), [`acp`](../packages/ui/acp) | - | UI front doors provide the active human-answer provider; tool-ask-user pauses a tool call on the provider-neutral ask() promise. | | `ctx.agents` | `core` | [`agent`](../packages/core/agent) | - | [`agent-loop`](../packages/core/agent-loop), [`acp`](../packages/ui/acp), [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`stdio-agent`](../packages/ui/stdio-agent), [`invariants`](../packages/support/invariants) | - | Owns live Agent handles and the create/resume factory seam. | | `ctx.agentLoop` | `bundle` | [`agent-loop`](../packages/core/agent-loop) | - | [`agent-core`](../packages/core/agent-core) | - | The one concrete loop plugin; extension packages depend on dsh-agent events and services, not on this package. | diff --git a/docs/config-catalog.md b/docs/config-catalog.md index a85fa29e93..5f01144504 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -128,7 +128,7 @@ export interface Config { Depends on: [`AgentId`](../packages/core/agent/src/index.ts) · [`AgentOptions`](../packages/core/agent/src/index.ts) · [`SessionId`](../packages/core/session/src/index.ts) -Source: [`packages/core/agent-loop/src/index.ts:38`](../packages/core/agent-loop/src/index.ts) +Source: [`packages/core/agent-loop/src/index.ts:37`](../packages/core/agent-loop/src/index.ts) ## `@deepseek-ai/dsh-bash-local` @@ -578,7 +578,7 @@ Source: [`packages/subagent/subagent-acp/src/index.ts:30`](../packages/subagent/ ## `@deepseek-ai/dsh-subagent-fork` -Requires: `subagents` · `agents` +Requires: `subagents` ```ts config-catalog /** Config: the registry name to register the provider under. */ @@ -625,7 +625,7 @@ Source: [`packages/support/subagent-mock/src/index.ts:84`](../packages/support/s ## `@deepseek-ai/dsh-subagent-spawn` -Requires: `subagents` · `agents` +Requires: `subagents` ```ts config-catalog /** Config: the registry name to register the provider under. */ @@ -684,7 +684,7 @@ export interface Config { } ``` -Source: [`packages/core/system-prompt/src/index.ts:220`](../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:264`](../packages/core/system-prompt/src/index.ts) ## `@deepseek-ai/dsh-tool-cordis` @@ -831,9 +831,9 @@ Requires: `systemPrompt` export interface Config { /** * The presentation mode. `'native'` (the default) contributes every - * registered tool as a wire function definition — byte-for-byte today's - * behavior. `'code'` contributes exactly ONE wire tool, `run_code`, plus - * the generated `tools:sdk` prompt section declaring every other tool as a + * visible end capability as a native wire function definition. Under + * `'code'` this registry contributes exactly ONE wire tool, + * `run_code`, plus the generated `tools:sdk` prompt section declaring every other tool as a * TypeScript API the program calls. `'both'` contributes every native * definition AND `run_code` + the SDK section. Non-native modes require a * loaded `ctx.codeRuntime` whose `language` is `'typescript'` — a missing @@ -850,7 +850,7 @@ export interface Config { export type ToolPresentationMode = 'native' | 'code' | 'both' ``` -Source: [`packages/core/tools/src/index.ts:338`](../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:402`](../packages/core/tools/src/index.ts) ## `@deepseek-ai/dsh-web` diff --git a/docs/cookbook/adding-a-tool.md b/docs/cookbook/adding-a-tool.md index 50c7cbccf8..5eede7ff5d 100644 --- a/docs/cookbook/adding-a-tool.md +++ b/docs/cookbook/adding-a-tool.md @@ -22,7 +22,7 @@ export function apply(ctx: Context) { }, async execute(args, exec) { // args is TYPED from the schema: { path: string; limit?: number } - // exec carries { callId, name, arguments, agent?, signal? } + // exec carries immutable identity + token; signal is the operational field return [{ type: 'text', text: await readFile(args.path, 'utf8') }] }, })) @@ -34,7 +34,9 @@ Registration is effect-based: disposing the plugin fiber unregisters the tool (w ## Rules of the execute() contract - **Args are validated for you.** `defineTool` validates the model-generated `arguments` against the `SchemaSpec` before `execute` runs (type, required keys, enum membership, nested objects/arrays — [runtime arg validation](../rfc/implemented/architecture/2026-06-11-runtime-arg-validation.md)), so inside `execute` the args already match `InferArgs`. You still hand-check value constraints the DSL can't express (non-empty strings, positive numbers, cross-field rules); throw a descriptive Error for those. Raw JSON-Schema tools registered directly (MCP) are NOT validated by the harness — they validate their own input. -- **Throwing means isError.** The registry catches anything `execute()` throws and returns `{isError: true}` to the model. Use that for infrastructure failures (bad input, spawn errors, aborts) — but REPORT domain failures in the result text instead (e.g. tool-bash returns `[exit code: 9]` with `isError: false`: the model decides what a failing command means). +- **Registration snapshots your definition.** Parameters must be losslessly JSON-serializable; the registry validates and clones them, copies the scalar fields, binds each callback once to your definition as its method receiver, and freezes the stored record. Reassigning `definition.execute` after registration does not hot-swap the tool—dispose and register a new definition through the owning effect instead. Deliberate mutable state inside the callback's closure or receiver remains ordinary plugin state. +- **Execution identity is protected.** The registry requires `arguments` to survive lossless-JSON validation before and after cloning, freezes the detached value before policy starts, and assigns an opaque `exec.token`; `callId`, `name`, `arguments`, `agent`, `token`, and an optional enclosing-transport `parent` token stay immutable through dispatch. `parent` is identity-only and exposes no live outer execution. Treat `args` as readonly input. An around-dispatch wrapper may add, replace, or remove only `exec.signal` to impose cancellation or a deadline. +- **Throwing or returning non-JSON data means isError.** The registry catches anything `execute()` throws and validates the complete post-policy result as losslessly JSON-serializable before final observers run. A throw, malformed result, or non-JSON content/context/meta becomes `{isError: true}` so the live outcome cannot succeed and then fail at the durable log. Use errors for infrastructure failures (bad input, spawn errors, aborts), but report domain failures in the result text instead (for example, tool-bash returns `[exit code: 9]` with `isError: false` because the model decides what a failing command means). - **Honor `exec.signal`.** Cancel in-flight work when it fires. - **Attach durable card data with `meta` (optional).** `execute` may return `{ content, meta }` instead of a bare `ContentBlock[]` — `meta` is a JSON-serializable payload the core treats as opaque, persisted on the `tool/result` event and handed back to your `presentResult` (so a card that needs more than `args`, like `write`/`edit`'s applied-hunk diff, survives a session replay). Keep UI-only data here, never in the model-facing `content`. - **Use `exec.agent` for async notifications.** `agent.inject(content, {source: {kind: 'plugin', plugin: ''}})` appends durable context the NEXT model request sees — it is not a wake-up (an idle agent stays idle). Guard against disposed agents (try/catch). @@ -45,13 +47,13 @@ Follow tool-bash's background pattern: a `run_in_background` flag returns a task > TODO: each tool reimplements this background pattern by hand today. At some point we need a generic long-running-tool layer that handles task ids, incremental polling, kill, and completion notices uniformly. -## Permissions / sandboxing +## Execution policy and observation -Prefer not to build policy into the tool. The seam is the `tools/pre-execute` gate (deny/ask — see the permission-gate example in [extension-cookbook.md](./extension-cookbook.md)) and the `tools/post-execute` inspect/transform seam, or a sandboxing implementation behind the tool's executor seam. +Prefer not to build deployment policy into the tool. Use `tools/pre-execute` for extensible allow/deny/ask policy (the [permission-gate example](./extension-cookbook.md#a-hook-plugin-permission-gate)), `ctx.tools.guard()` for a final monotonic deny that later listeners cannot undo, `tools/execute` to wrap core dispatch with a deadline/retry/metrics scope, `tools/post-execute` to transform or attach model-facing context, and `tools/result` to observe the immutable normalized outcome without changing it. A sandboxing implementation can also sit behind the tool's executor capability seam; the exact contracts are in the [`dsh-tools` README](../../packages/core/tools/README.md#extension-points). ## Code Mode reaches your tool for free -Under the registry's non-native `mode` ([Code Mode](../../packages/core/tools/README.md)), a registered tool is ALSO callable from a `run_code` program as `await tools.(args)` — nothing to add. The generated SDK declares your parameters from the same JSON Schema `defineTool` emits (constructs outside that subset degrade to `unknown`), each program call re-enters `execute()` through both waterfalls, and a failed call rejects the program-side promise with your error text. Two consequences worth designing for: your `description` and parameter `description`s become JSDoc a model reads while WRITING CODE, and non-text result blocks reach programs as placeholders (text is the lingua franca of the bridge). +Under the registry's non-native `mode` ([Code Mode](../../packages/core/tools/README.md)), each visible registered capability is callable from a `run_code` program as `await tools.(args)` — nothing to add. The registry keeps `run_code` itself as reserved, unfilterable presentation infrastructure while restrictions still control which end capabilities appear in the scoped SDK and bindings. The generated SDK declares parameters from the same JSON Schema `defineTool` emits (constructs outside that subset degrade to `unknown`); each program call receives its own immutable execution whose `parent` is the enclosing `run_code` token, then re-enters the complete pre/guard/around/post/result pipeline. A failed call rejects the program-side promise with your error text. Design `description` and parameter `description`s as JSDoc a model reads while writing code, and remember that non-text result blocks reach programs as placeholders (text is the bridge's lingua franca). ## How your tool renders in an editor (ACP presentation) diff --git a/docs/cookbook/extension-cookbook.md b/docs/cookbook/extension-cookbook.md index de21ece7b1..b9c5d2cdf0 100644 --- a/docs/cookbook/extension-cookbook.md +++ b/docs/cookbook/extension-cookbook.md @@ -28,6 +28,8 @@ export function apply(ctx: Context) { } ``` +This waterfall is the reorderable policy layer. Use `ctx.tools.guard()` when an invariant needs a monotonic final denial, `tools/execute` when a plugin must wrap the actual dispatch lifetime (timeouts/retries/metrics; only `exec.signal` is replaceable), `tools/post-execute` for explicit result transformation, and `tools/result` for contained observation of the immutable final outcome. The [adding-a-tool guide](./adding-a-tool.md#execution-policy-and-observation) gives the selection rule. + ## A UI plugin A UI plugin renders from the `session/event` feed (the assistant token stream as `assistant/chunk`, plus turn/step boundaries and tool activity), and drives input back in via `agent.send()` / `agent.steer()`. @@ -92,14 +94,17 @@ Every product feature maps to a listener on a documented extension seam — the | Hook system (user + project level) | listeners on `agent/session-start`, `agent/prompt-submit`, `agent/request`, `agent/step-result`, `tools/pre-execute`, `tools/post-execute`, `agent/turn-continuation` — each interception waterfall returns a typed Decision; the `dsh-hooks-claude` / `dsh-hooks-codex` bridges map hook config files onto these seams | | `/goal` | force-continue via `agent/turn-continuation` + `steer()` reminders | | `/loop` | on the `turn/end` session event, `send()` the next iteration; or force-continue | -| Dynamic workflow | orchestrator plugin on `turn/end` (or `step/end`) driving `send`/`steer` + subagents | +| Dynamic workflow | `ctx.workflows` + the worker-thread engine + the `workflow` tool; structured in-process children enforce output with scoped prompt protection, a monotonic tool guard, final `tools/result` commit (including enclosing `run_code`), and terminal `agent/turn-stop` | | Queued + steering messages | core `Agent.send()` / `Agent.steer()` | | Context compaction (auto + manual) | the `ctx.compact` seam + a backend (`dsh-compact-basic`) on the serial `agent/pre-step` seam; auto = token-pressure check before each step; a manual trigger invokes the same `ctx.compact` routine ([compaction RFC](../rfc/implemented/feature/2026-06-18-compaction-capability-seam.md) — the model-facing `/compact` consumer tool is deferred) | -| System prompt configurability | `ctx.systemPrompt.section()` with ordering | +| System prompt configurability | `ctx.systemPrompt.section()` with ordering; an owner uses `systemPrompt.protect()` only when its canonical section/tool presence is a correctness invariant | | AGENTS.md (root) | a section provider reading the file | | AGENTS.md (subdir, on-touch) + file-change notices | `agent.inject()` from a watcher / tool-result listener | | Built-in tools | `ctx.tools.register()`; schemas flow into the assembly automatically — the `dsh-tool-*` families (bash, fs, web, subagent, todo) are the shipped examples | -| ToolSearch / progressive disclosure | filter tools at `system-prompt/assemble` (the assembly carries the schemas; the loop logs the result as the request header, so disclosure stays reconstructable) | +| ToolSearch / progressive disclosure | filter ordinary capabilities at `system-prompt/assemble` (the loop logs the result as the request header); owner-protected transport and correctness entries retain their canonical presence or absence | +| Tool deadline / retry / metrics | wrap core dispatch with `tools/execute`; a wrapper may replace `exec.signal`, delegate, and inspect the normalized result in one lexical lifetime | +| Final tool-result metrics / audit / capture | observe immutable authoritative outcomes with `tools/result`; use `tools/post-execute` instead only when the plugin must transform the result or attach context | +| Monotonic terminal turn policy | return `{ action: 'stop' }` from serial `agent/turn-stop`, after continuation and steering have already been folded | | Tool sandbox (landlock / sandbox-exec) | `tools/pre-execute` (deny), or a sandboxing `BashExecutor` on the `dsh-bash` seam | | Permission system / AskUserQuestion | `tools/pre-execute` (deny/ask); register an ask tool | | Plan mode | `tools/pre-execute` (deny writes) + a mode prompt section via `ctx.systemPrompt.section()` or `agent.inject()` (model-visible ⟺ logged: `agent/request` shapes call config only) | diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 659dc9143b..48f0d32eb0 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -15,7 +15,7 @@ Dispatch modes: **emit** (fire-and-forget), **waterfall** (each listener gets `n ### `agent/created` — emit -An agent was registered in the AgentRegistry and is ready to receive messages. +An agent's fully composed scoped world was published in the AgentRegistry. Its session is already live in the session store, but concrete factories may keep driving verbs locked until the subsequent `agent/session-start` boundary; that event is the first supported place to inject or queue work during startup. ```ts cordis-catalog 'agent/created'(this: Scoped, agent: Agent): void @@ -23,11 +23,11 @@ An agent was registered in the AgentRegistry and is ready to receive messages. Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:287`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:298`](../../packages/core/agent/src/types.ts) ### `agent/disposed` — emit -An agent was disposed and removed from the registry; its fiber and any in-flight turn have been torn down. +An agent was removed from the registry after its driver and any in-flight turn reached quiescence. Ordered teardown may still be detaching the session and unwinding the agent's scoped registrations when this notification runs. ```ts cordis-catalog 'agent/disposed'(this: Scoped, agent: Agent): void @@ -35,7 +35,7 @@ An agent was disposed and removed from the registry; its fiber and any in-flight Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:299`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:312`](../../packages/core/agent/src/types.ts) ### `agent/error` — emit @@ -47,7 +47,7 @@ A step or turn errored. The loop reports a failure here (plus the logger) even w Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:553`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:585`](../../packages/core/agent/src/types.ts) ### `agent/pre-step` — serial @@ -61,7 +61,7 @@ Serial (awaited in registration order), not a waterfall: a listener mutates the Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:404`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:417`](../../packages/core/agent/src/types.ts) ### `agent/prompt-submit` — waterfall @@ -73,7 +73,7 @@ Waterfall: decide what happens to ONE drained queued message before it becomes a Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:422`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:435`](../../packages/core/agent/src/types.ts) ### `agent/queued` — emit @@ -85,7 +85,7 @@ A message entered the agent's inbox (queued or steering). `source` is the resolv Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:327`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:340`](../../packages/core/agent/src/types.ts) ### `agent/request` — waterfall @@ -97,7 +97,7 @@ Waterfall: shape the step's call configuration — model switching, sampling ove Types: [Agent](../core-data-structures/core.md) · [LlmCallConfig](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:451`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:464`](../../packages/core/agent/src/types.ts) ### `agent/session-prefix` — waterfall @@ -113,7 +113,7 @@ The seed is a frozen empty list; a contributing listener returns a NEW array — Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:503`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:516`](../../packages/core/agent/src/types.ts) ### `agent/session-start` — emit @@ -125,7 +125,7 @@ The agent's session lifecycle began, fired once before its first turn. `source` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:347`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:360`](../../packages/core/agent/src/types.ts) ### `agent/status` — emit @@ -137,7 +137,7 @@ Agent status changed (`idle` ⇄ `running`, or → `disposed`). Drive lifecycle Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:313`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:326`](../../packages/core/agent/src/types.ts) ### `agent/step-result` — waterfall @@ -149,7 +149,7 @@ Waterfall: post-process the assembled assistant Message before tool dispatch (va Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:518`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:531`](../../packages/core/agent/src/types.ts) ### `agent/turn-continuation` — waterfall @@ -161,7 +161,19 @@ Waterfall: override the turn-continuation decision via a typed ContinuationDecis Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:536`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:549`](../../packages/core/agent/src/types.ts) + +### `agent/turn-stop` — serial + +Serial terminal-stop checkpoint after the ordinary `agent/turn-continuation` waterfall, any `continue.reason`, and the pending-steering continuation override have been folded. A listener returns `{ action: 'stop' }` to make this turn terminal, or `undefined` to abstain. Terminal stop is monotonic: listener order and steering cannot resume the turn, and pending steering is discarded rather than becoming another step or turn. A malformed non-undefined result fails the turn closed. + +```ts cordis-catalog +'agent/turn-stop'(this: Scoped, agent: Agent, turn: number): Promise | ContinuationStop | undefined +``` + +Types: [Agent](../core-data-structures/core.md) + +Source: [`packages/core/agent/src/types.ts:568`](../../packages/core/agent/src/types.ts) ## `fs/*` @@ -256,10 +268,10 @@ Source: [`packages/core/session/src/index.ts:79`](../../packages/core/session/sr A subagent run settled — emitted when SubagentRun.result resolves (any stop reason). Paired with Events['subagent/start']. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by the DELEGATING PARENT — a listener registered through the parent's `agent.ctx` observes only its own delegations; a plain plugin listener observes every run. ```ts cordis-catalog -'subagent/end'(info: SubagentRunEndInfo): void +'subagent/end'(this: Scoped, info: SubagentRunEndInfo): void ``` -Source: [`packages/subagent/subagent/src/index.ts:107`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:109`](../../packages/subagent/subagent/src/index.ts) ### `subagent/provider-added` — emit @@ -269,7 +281,7 @@ A provider became resolvable in the SubagentService registry. Consumers that der 'subagent/provider-added'(provider: SubagentProvider): void ``` -Source: [`packages/subagent/subagent/src/index.ts:73`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:75`](../../packages/subagent/subagent/src/index.ts) ### `subagent/provider-removed` — emit @@ -279,17 +291,17 @@ A provider left the registry (its plugin's fiber was disposed — an unload or a 'subagent/provider-removed'(name: string): void ``` -Source: [`packages/subagent/subagent/src/index.ts:84`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:86`](../../packages/subagent/subagent/src/index.ts) ### `subagent/start` — emit A subagent run started — emitted after the provider is resolved and its capabilities validated, as the child run begins. Paired with Events['subagent/end']. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by the DELEGATING PARENT — a listener registered through the parent's `agent.ctx` observes only its own delegations; a plain plugin listener observes every run. ```ts cordis-catalog -'subagent/start'(info: SubagentRunInfo): void +'subagent/start'(this: Scoped, info: SubagentRunInfo): void ``` -Source: [`packages/subagent/subagent/src/index.ts:96`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:98`](../../packages/subagent/subagent/src/index.ts) ## `system-prompt/*` @@ -301,17 +313,17 @@ Waterfall around prompt assembly — mutate or extend the PromptAssembly (sectio 'system-prompt/assemble'(this: Scoped, assembly: PromptAssembly, context: AssembleContext, next: () => Promise): Promise ``` -Source: [`packages/core/system-prompt/src/index.ts:44`](../../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:45`](../../packages/core/system-prompt/src/index.ts) ### `system-prompt/change` — emit -A section, tool provider, or variable provider was registered or unregistered (the assembly inputs changed — possibly for one scope only). An UNFILTERED registry-subject notification, deliberately not scope-filtered dispatch: a global change concerns every agent's next assembly, so a scoped listener subscribing here sees every change, not just its own scope's. +A section, tool provider, variable provider, or protection was registered or unregistered (the assembly inputs changed — possibly for one scope only). An UNFILTERED registry-subject notification, deliberately not scope-filtered dispatch: a global change concerns every agent's next assembly, so a scoped listener subscribing here sees every change, not just its own scope's. ```ts cordis-catalog 'system-prompt/change'(): void ``` -Source: [`packages/core/system-prompt/src/index.ts:54`](../../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:55`](../../packages/core/system-prompt/src/index.ts) ## `tools/*` @@ -323,11 +335,11 @@ A tool was registered or unregistered, or a scoped restriction changed (the avai 'tools/change'(): void ``` -Source: [`packages/core/tools/src/index.ts:151`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:170`](../../packages/core/tools/src/index.ts) ### `tools/execute` — waterfall -Around-dispatch waterfall wrapping the registry's core tool dispatch, between the `tools/pre-execute` gate and the `tools/post-execute` seam. A listener receives `(exec, next)`: call `next()` to delegate to dispatch (returning its ToolExecutionResult, optionally wrapped), or return a replacement result without calling `next()` to short-circuit dispatch. The base `next()` IS the dispatch-with-normalization thunk — a thrown tool (or unknown tool) is already normalized to an `isError` result by the time a listener's `await next()` returns, so a wrapper never sees a raw throw from the tool body. This is the seam a timeout/retry/metrics plugin wraps: it can mutate `exec` (e.g. replace `exec.signal` with a per-call deadline) BEFORE `next()` and inspect the result AFTER. (Cordis `next()` ignores any passed arguments and re-invokes downstream with the shared payload, so a wrapper mutates `exec` in place rather than passing a new object to `next()`.) Multiple listeners compose by registration order — an outer one wraps the inner ones plus dispatch. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by `exec.agent` — a listener registered through `agent.ctx` wraps only that agent's calls; a plain plugin listener wraps every call (including agent-less ones, which dispatch subject-less). +Around-dispatch waterfall wrapping the registry's core tool dispatch, between the `tools/pre-execute` gate and the `tools/post-execute` seam. A listener receives `(exec, next)`: call `next()` to delegate to dispatch (returning its ToolExecutionResult, optionally wrapped), or return a replacement result without calling `next()` to short-circuit dispatch. The base `next()` IS the dispatch-with-normalization thunk — a thrown tool (or unknown tool) is already normalized to an `isError` result by the time a listener's `await next()` returns, so a wrapper never sees a raw throw from the tool body. This is the seam a timeout/retry/metrics plugin wraps: it can set or replace the one mutable field, `exec.signal` (e.g. with a per-call deadline), BEFORE `next()`, restore/delete it afterward, and inspect the result AFTER. Call identity (`token`, `callId`, `name`, `arguments`, `agent`, and `parent`) is immutable throughout the pipeline so a wrapper cannot change which capability or scope was authorized. (Cordis `next()` ignores passed arguments and re-invokes downstream with the shared payload, so a wrapper changes `exec.signal` in place rather than passing a new object to `next()`.) Multiple listeners compose by registration order — an outer one wraps the inner ones plus dispatch. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by `exec.agent` — a listener registered through `agent.ctx` wraps only that agent's calls; a plain plugin listener wraps every call (including agent-less ones, which dispatch subject-less). ```ts cordis-catalog 'tools/execute'(this: Scoped, exec: ToolExecution, next: () => Promise): Promise @@ -335,7 +347,7 @@ Around-dispatch waterfall wrapping the registry's core tool dispatch, between th Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:121`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:125`](../../packages/core/tools/src/index.ts) ### `tools/post-execute` — waterfall @@ -347,7 +359,7 @@ Waterfall AFTER a tool runs — where hook plugins inspect the result and accept Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:141`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:145`](../../packages/core/tools/src/index.ts) ### `tools/pre-execute` — waterfall @@ -359,7 +371,19 @@ Waterfall BEFORE a tool runs — the gate where sandbox, permission, and hook pl Types: [ToolExecution](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:97`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:98`](../../packages/core/tools/src/index.ts) + +### `tools/result` — parallel + +Awaited notification of the authoritative FINAL tool outcome, after the complete pre/execute/post pipeline, final lossless-JSON validation, and outer error normalization. Unlike the three waterfalls, this seam cannot transform the result: each listener receives the now-frozen execution object and a deep-frozen result snapshot; listener failures are contained and logged, and ToolRegistry.execute still returns the outcome. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): keyed by `exec.agent`, using the same carrier as the pipeline. + +```ts cordis-catalog +'tools/result'(this: Scoped, exec: Readonly, result: Readonly): Promise | void +``` + +Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) + +Source: [`packages/core/tools/src/index.ts:160`](../../packages/core/tools/src/index.ts) ## `workflow/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 8f5f32a22b..6e9fcd8a42 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -17,28 +17,30 @@ The loop itself is deliberately thin — every behavior beyond "call the model, ```ts cordis-catalog create(id: AgentId, options: AgentOptions = {}): ReactLoopAgent -createAgent(options: CreateAgentOptions): AgentHandle +async createAgent(options: CreateAgentOptions): Promise async resume(options: ResumeAgentOptions): Promise ``` -Source: [`packages/core/agent-loop/src/index.ts:70`](../../packages/core/agent-loop/src/index.ts) +Source: [`packages/core/agent-loop/src/index.ts:69`](../../packages/core/agent-loop/src/index.ts) ## `ctx.agents` — `AgentRegistry` -Agent registry (`ctx.agents`): tracks live agents so UI, hook, and orchestrator plugins can find them without depending on the concrete loop package. Agent *creation* is provided by whichever plugin implements the AgentFactory (phase 1: `@deepseek-ai/dsh-agent-loop`), registered via setFactory. +Agent registry (`ctx.agents`): tracks live agents so UI, hook, and orchestrator plugins can find them without depending on the concrete loop package. Agent *creation* is provided by whichever plugin implements the AgentFactory (`@deepseek-ai/dsh-agent-loop`), registered via setFactory. ```ts cordis-catalog setFactory(factory: AgentFactory): () => Promise | void -create(options: CreateAgentOptions): AgentHandle +async create(options: CreateAgentOptions): Promise async resume(options: ResumeAgentOptions): Promise register(agent: Agent): () => Promise | void +enter(agent: Agent): () => void +announce(agent: Agent): void get(id: AgentId): Agent | undefined list(): Agent[] ``` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/index.ts:145`](../../packages/core/agent/src/index.ts) +Source: [`packages/core/agent/src/index.ts:168`](../../packages/core/agent/src/index.ts) ## `ctx.bash` — `BashExecutor` (abstract seam) @@ -199,40 +201,42 @@ list(): string[] start(name: string, request: SubagentStartRequest): SubagentRun ``` -Source: [`packages/subagent/subagent/src/index.ts:153`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:155`](../../packages/subagent/subagent/src/index.ts) ## `ctx.systemPrompt` — `SystemPrompt` -Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, and named prompt variables; the agent loop calls `assemble(context)` once per step. Registers the harness-owned `harness:identity` and `deployment:persona` sections itself (see Config.persona). +Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, named prompt variables, and authoritative contribution protections; the agent loop calls `assemble(context)` once per step. Registers the harness-owned `harness:identity` and `deployment:persona` sections itself (see Config.persona). ```ts cordis-catalog section(section: PromptSection): () => Promise | void tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void variable(name: string, provider: (context: AssembleContext) => string | undefined): () => Promise | void +protect(protection: PromptProtection): () => Promise | void async assemble(context: AssembleContext = {}): Promise ``` -Source: [`packages/core/system-prompt/src/index.ts:335`](../../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:379`](../../packages/core/system-prompt/src/index.ts) ## `ctx.tools` — `ToolRegistry` -Tool registry (`ctx.tools`): tool plugins register definitions; the agent loop executes calls through the `tools/pre-execute` → `tools/execute` → `tools/post-execute` pipeline. The registry contributes its schemas into the system-prompt assembly — WHICH schemas is governed by its `mode` config (see Config.mode); under a non-native mode it also registers the `run_code` tool and the `tools:sdk` prompt section itself. +Tool registry (`ctx.tools`): tool plugins register definitions; the agent loop executes calls through the `tools/pre-execute` → guards → `tools/execute` → `tools/post-execute` → `tools/result` pipeline. The registry contributes its schemas into the system-prompt assembly — WHICH schemas is governed by its `mode` config (see Config.mode); under a non-native mode it also owns the reserved `run_code` presentation transport and the `tools:sdk` prompt section. Two registration layers (`@deepseek-ai/dsh-scope`): a registration through a plain plugin context is GLOBAL (visible to every agent); one through a scoped context (`agent.ctx`) is filed in that scope's layer — visible to that agent alone, disposed with the scope, and SHADOWING a global tool of the same name for that agent (most-specific-wins; within one layer a duplicate name still throws). restrict masks the global layer per scope. One visibility function (visible) feeds prompt assembly, get, and execute — and, under a non-native mode, the SDK section and `run_code`'s bindings — so what the model is shown, what a presenter renders, what a program can call, and what dispatches can never disagree. ```ts cordis-catalog register(definition: ToolDefinition): () => Promise | void restrict(filter: ToolRestriction): () => Promise | void +guard(guard: ToolGuard): () => Promise | void visible(scope?: ScopeKey): ToolDefinition[] get(name: string, scope?: ScopeKey): ToolDefinition | undefined schemas(scope?: ScopeKey): ToolSchema[] knownNames(scope?: ScopeKey): string[] -async execute(exec: ToolExecution): Promise +async execute(exec: ToolExecutionInput): Promise ``` -Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) +Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecutionInput](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:392`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:474`](../../packages/core/tools/src/index.ts) ## `ctx.userInteraction` — `UserInteractionService` diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index cdc928b2fc..ad1041a5ed 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -18,7 +18,7 @@ Everything else is documented on a **sub-page**, not here. The rule that draws t | [llm-streaming.md](llm-streaming.md) | the `StreamChunk` wire protocol + adapter contract, `BlockAssembler`, the `LlmAdapter` seam | | [session.md](session.md) | the full `SessionEventMap` variant catalog, `TurnTrigger`/`TurnEndReason`, `deriveMessages()`, the turn-enclosure invariant | | [persistence.md](persistence.md) | the durability seam: `SessionPersistence`, JSONL + SQLite backends, `session/flush`, crash recovery, `SessionHeader` | -| [tools.md](tools.md) | `ToolDefinition` full fields, the schema DSL, `ToolExecution`/`ToolResult`, tool-presentation UI types, the `tools/pre-execute`/`tools/post-execute` pipeline | +| [tools.md](tools.md) | `ToolDefinition` full fields, the schema DSL, `ToolExecution`/`ToolResult`, tool-presentation UI types, and the guarded execution pipeline | | [user-interaction.md](user-interaction.md) | the UI-backed human question/answer seam: `AskUserQuestionRequest`, answer/options vocabulary, provider API, error taxonomy | | [bash.md](bash.md) | the bash executor seam: `BashExecRequest`/`Spec`, `BashRunResult`, background `BashTask`s | | [code-runtime.md](code-runtime.md) | the code-execution seam: `CodeRunRequest`/`Result`, binding namespaces, captured logs, the `CodeRunFailure` taxonomy | @@ -339,7 +339,7 @@ interface Agent { } ``` -`AgentStatus` is `'idle' | 'running' | 'disposed'`. `AgentId` is a branded string. `AgentOptions` (`model?`) is merge-extensible — plugins add creation options by declaration merging; the persona is NOT an agent option but the `dsh-system-prompt` plugin's `persona` config, shared context-wide. The `agent/*` event taxonomy (lifecycle emits incl. `agent/session-start`, the serial `agent/pre-step` surface-mutation seam, and the `agent/prompt-submit`/`agent/request`/`agent/session-prefix`/`agent/step-result`/`agent/turn-continuation` waterfalls) is in [architecture.md § Event taxonomy](../architecture.md#event-taxonomy); turn/step boundaries are durable `session/event` records, not `agent/*` emits. +`AgentStatus` is `'idle' | 'running' | 'disposed'`. `AgentId` is a branded string. `AgentOptions` (`model?`) is merge-extensible — plugins add creation options by declaration merging; the persona is NOT an agent option but the `dsh-system-prompt` plugin's `persona` config, shared context-wide. The `agent/*` event taxonomy (lifecycle emits incl. `agent/session-start`, serial `agent/pre-step`/`agent/turn-stop` checkpoints, and the `agent/prompt-submit`/`agent/request`/`agent/session-prefix`/`agent/step-result`/`agent/turn-continuation` waterfalls) is in [architecture.md § Event taxonomy](../architecture.md#event-taxonomy); turn/step boundaries are durable `session/event` records, not `agent/*` emits. ## Interception decisions @@ -370,6 +370,12 @@ type ContinuationDecision = | { action: 'continue'; reason?: HookContext } ``` +`agent/turn-stop` returns the stop-only `ContinuationStop` subset or `undefined`. The loop calls this serial checkpoint after folding the ordinary decision, its reason, and pending steering; a stop is terminal and discards pending steering. + +```ts type-equiv +type ContinuationStop = Extract +``` + `agent/session-start` carries a `SessionStartSource` (why the session lifecycle began; a bridge keys its SessionStart matcher on it): ```ts type-equiv diff --git a/docs/core-data-structures/subagent.md b/docs/core-data-structures/subagent.md index 6f2e23e37e..66525592cf 100644 --- a/docs/core-data-structures/subagent.md +++ b/docs/core-data-structures/subagent.md @@ -38,7 +38,7 @@ interface SubagentStartRequest { ## The terminal result: `SubagentResult` -The outcome of a run, resolved by `SubagentRun.result`. `structured` is present iff the request carried an `outputSchema` AND the provider honored it. A non-`completed` `stopReason` means `output` may be partial — the consumer maps it to an `isError` tool result rather than reporting partial output as success. +The outcome of a run, resolved by `SubagentRun.result`. `structured` is present only after a requested `outputSchema` was successfully satisfied; requesting a schema does not guarantee it, and a provider may return `stopReason: 'error'` when the child fails or finishes without a valid capture. A non-`completed` `stopReason` means `output` may be partial — the consumer maps it to an `isError` tool result rather than reporting partial output as success. ```ts type-equiv interface SubagentResult { @@ -92,7 +92,7 @@ The service (`ctx.subagents`) emits `subagent/start` when a run begins and `suba ## In-process backends: depth and seed -The two in-process backends ([dsh-subagent-spawn](../../packages/subagent/subagent-spawn) fresh, [dsh-subagent-fork](../../packages/subagent/subagent-fork) seeded) run the child as a child `Agent` on the same context via `ctx.agents.create`. Two pieces of vocabulary ride on the existing agent/session types rather than new core types: +The two in-process backends ([dsh-subagent-spawn](../../packages/subagent/subagent-spawn) fresh, [dsh-subagent-fork](../../packages/subagent/subagent-fork) seeded) run the child as a child `Agent` on the same application. They synchronously snapshot caller-owned data, install provider ownership before attaching the abort listener, create one run-owner fiber under `parent.ctx`, and invoke the factory through that fiber: parent teardown, provider teardown, and manual run disposal share the same pre-publication ownership and quiescence boundary, while the child still receives a flat new scope rather than inheriting the parent's capabilities. Two pieces of vocabulary ride on the existing agent/session types rather than new core types: - **Delegation depth** is a merge-extensible `AgentOptions.subagentDepth` field (`0` for a top-level agent, parent + 1 for a child). The seam owns it — the loop neither sets nor reads it — so a nested spawn reads its parent's depth from `parent.options.subagentDepth` and the `depthLimit` capability caps the tree by refusing a child whose depth would exceed `request.maxDepth`. - **Fork seeding** uses `CreateAgentOptions.seed` (a `SessionEvent[]` prefix threaded through `AgentLoop.createAgent` → `ctx.sessions.prepare({ seed })`, the same primitive `resume` uses). The fork backend passes a *balanced completed-turn prefix* of the parent's log — the parent's events up to and including its last `turn/end` — so the seed is contiguous-from-0 and the [invariants](../../packages/support/invariants) replay accepts it (the in-flight, unbalanced turn is excluded). diff --git a/docs/core-data-structures/tools.md b/docs/core-data-structures/tools.md index 96d3e79bdc..e62e11922f 100644 --- a/docs/core-data-structures/tools.md +++ b/docs/core-data-structures/tools.md @@ -1,6 +1,6 @@ # Tools -The tool pipeline of [dsh-tools](../../packages/core/tools). [core.md](core.md) introduces `ToolDefinition` as the one pipeline-authoring type promoted to the spine and `ToolSchema` as the model-facing wire shape. This page owns the full `ToolDefinition`, the typed schema DSL that builds it, the waterfall execution shapes, and the UI-presentation vocabulary. +The tool pipeline of [dsh-tools](../../packages/core/tools). [core.md](core.md) introduces `ToolDefinition` as the one pipeline-authoring type promoted to the spine and `ToolSchema` as the model-facing wire shape. This page owns the full `ToolDefinition`, the typed schema DSL that builds it, the guarded execution shapes, and the UI-presentation vocabulary. Source: [`packages/core/tools/src/index.ts`](../../packages/core/tools/src/index.ts) · [`packages/core/tools/src/schema.ts`](../../packages/core/tools/src/schema.ts) · [`packages/core/tools/src/presentation.ts`](../../packages/core/tools/src/presentation.ts) @@ -81,22 +81,51 @@ type InferArgs = Simplify< `defineTool({ name, description, parameters, execute, … })` ties it together: `parameters` is a `SchemaSpec`, `execute(args, exec)` gets `args: InferArgs`, and the helper converts the spec to JSON Schema (`schemaSpecToJsonSchema`) for the wire and validates model-generated args (`validateArgs`) before the typed body runs. A mismatch throws `ToolArgsError` (`code: 'INVALID_ARGS'`), which the registry turns into an `isError` result so the model can self-correct. Why a custom DSL and not schemastery: tool parameters need JSON Schema (the LLM wire format), not validation/transformation — the lightweight DSL gives the best authoring DX with the smallest surface. -## Execution: the `tools/pre-execute` / `tools/post-execute` pipeline shapes +Registration is a value boundary. `ToolRegistry.register()` validates `ToolDefinition.parameters` as lossless JSON before and after cloning, copies the scalar fields, binds the execute/presentation callbacks once to the original definition as their method receiver, and deep-freezes the stored record. Replacing a callback property on the caller-owned definition later does not change dispatch. `get()`/`visible()` expose only that frozen snapshot, while `schemas()` produces detached projections, so the model-visible and executable views cannot drift through a leaked mutable registry object. -`ctx.tools.execute()` runs each call through a two-waterfall pipeline — `tools/pre-execute` (the allow/deny/ask gate) → core dispatch → `tools/post-execute` (inspect/replace the result, attach context) — the seams where sandbox, permission, hook, and plan-mode plugins gate or transform a call. The pending call is a `ToolExecution`; the outcome is a `ToolExecutionResult`. +## Execution: extensible waterfalls plus monotonic policy + +`ctx.tools.execute()` accepts a caller-owned `ToolExecutionInput`, snapshots it into a pipeline-owned `ToolExecution`, and runs that call through `tools/pre-execute` (the reorderable allow/deny/ask waterfall) → registered monotonic guards → `tools/execute` (around-dispatch wrappers) → `tools/post-execute` (inspect/replace the result) → `tools/result` (the immutable authoritative outcome). The outcome is a `ToolExecutionResult`. ```ts type-equiv -interface ToolExecution { - callId: CallId - name: string +interface ToolExecutionToken { + readonly [toolExecutionTokenBrand]: true +} +``` + +```ts type-equiv +interface ToolExecutionInput { + readonly callId: CallId + readonly name: string /** Parsed JSON arguments (unknown — tools validate their own input). */ - arguments: unknown + readonly arguments: unknown /** The agent on whose behalf the call runs (set by the agent loop). */ - agent?: Agent + readonly agent?: Agent + /** + * Opaque token of the enclosing transport execution, when one exists. Code + * Mode sets this on SDK sub-dispatches so commit-style observers can wait for + * the outer `run_code` outcome without receiving its live mutable execution. + */ + readonly parent?: ToolExecutionToken signal?: AbortSignal } ``` +```ts type-equiv +interface ToolExecution extends ToolExecutionInput { + /** Registry-assigned identity shared with nested calls only as their opaque `parent` token. */ + readonly token: ToolExecutionToken +} +``` + +`ToolExecutionToken` is a compile-time opaque type and a frozen, property-free object at runtime; identity comparison is its only operation. Before policy runs, `ctx.tools.execute()` requires the caller's `arguments` to be losslessly JSON-serializable, checks again after cloning to contain unstable accessors, assigns a fresh token, and deep-freezes the detached arguments. A cloneable mutable exotic such as `Map` is rejected and normalized to an error before policy. `token`, `callId`, `name`, `arguments`, `agent`, and the optional `parent` token are non-writable throughout all waterfalls, so a listener cannot change which capability or scope was authorized or reach a live enclosing execution; an around-dispatch wrapper may add, replace, or remove only optional `signal`. After the complete pipeline the registry freezes the execution and exposes its stable identity to `tools/result` observers, where the execution remains usable as a `WeakMap` key without mutation races. + +A `ToolGuard` is scope-aware final pre-dispatch policy. Its shape deliberately has no allow result: `undefined` preserves the waterfall decision, while a returned reason can only reduce permission, so a later listener cannot undo it. + +```ts type-equiv +type ToolGuard = (execution: Readonly) => string | undefined +``` + ```ts type-equiv interface ToolExecutionResult { callId: CallId @@ -129,7 +158,9 @@ interface ToolExecutionResult { } ``` -Each interception waterfall returns a typed **Decision** (the idiom shared with the `agent/*` seams). `tools/pre-execute` listeners receive `(exec, next)` and return a `PreToolDecision`; `tools/post-execute` listeners receive `(exec, result, next)` and return a `PostToolDecision`: +The registry rebuilds and validates the complete authoritative result after post-policy. Its content, structured error, additional context, and presentation metadata must round-trip losslessly through JSON; a malformed or non-JSON value becomes a JSON-safe `isError` result before `tools/result` observers run, so the live outcome is always safe for the later durable `tool/result` append. + +Each interception waterfall returns a typed **Decision** (the idiom shared with the `agent/*` seams). `tools/pre-execute` listeners receive `(exec, next)` and return a `PreToolDecision`; `tools/execute` wrappers return a `ToolExecutionResult`; `tools/post-execute` listeners receive `(exec, result, next)` and return a `PostToolDecision`: ```ts type-equiv type PreToolDecision = @@ -144,7 +175,7 @@ type PostToolDecision = | { kind: 'block'; feedback: ContentBlock[]; additionalContext?: HookContext } ``` -Call `next()` to delegate to the default (allow / accept-unchanged), or return a decision to short-circuit. A `pre-execute` `deny` (or `ask`, which degrades to deny until the permission system lands) skips dispatch and yields an `isError` result; input rewrite is deliberately NOT offered on `PreToolDecision` (it would desync the pre-execution audit/history/UI from what ran — its own proposed RFC). A `post-execute` `accept` may replace the model-facing `content` (clean, because `tool/result` is logged after `execute()` returns); a `block` turns the call into an `isError` whose content is the corrective `feedback`. Core dispatch sits between the waterfalls as plain code; the tool body keeps its own try/catch so a thrown tool still reaches `post-execute` as an `isError`. An unregistered tool routes through the same catch as a tool-thrown error, so both failure classes get a structured `{ name, code }` (`ToolNotFoundError` → `UNKNOWN_TOOL`) — the loop records a failed tool call instead of failing the whole turn. +Call `next()` to delegate to the default (allow / dispatch / accept-unchanged), or return a decision/result to short-circuit. A `pre-execute` `deny` (or `ask`, which degrades to deny until the permission system lands) skips dispatch and yields an `isError` result; a registered `ToolGuard` runs after that waterfall and can impose a final denial. Input rewrite is deliberately NOT offered on `PreToolDecision` because it would desync the pre-execution audit/history/UI from what ran. A `post-execute` `accept` may replace the model-facing `content`; a `block` turns the call into an `isError` whose content is the corrective `feedback`. The awaited `tools/result` notification then receives the frozen execution identity and a deep-frozen result snapshot after every wrapper, post decision, and outer error catch; observers cannot transform the outcome or race each other through payload mutation, and one observer failure neither changes the result nor starves peers. An unregistered tool routes through the same catch as a tool-thrown error, so both failure classes get a structured `{ name, code }` (`ToolNotFoundError` → `UNKNOWN_TOOL`) — the loop records a failed tool call instead of failing the whole turn. ## The structured-output schema subset diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index e004aae912..12caa6aa6f 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -7,18 +7,19 @@ This matrix shows which packages dispatch each harness-owned event and which pac | Event | Mode | Declared in | Dispatchers | Listeners | | --- | --- | --- | --- | --- | -| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:287`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:299`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:553`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:404`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | -| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:422`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | -| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:327`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:451`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:503`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:347`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`invariants`](../packages/support/invariants) | -| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:313`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:518`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:536`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:298`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:312`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:585`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:417`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) | +| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:435`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | +| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:340`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:464`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:516`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:360`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`invariants`](../packages/support/invariants) | +| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:326`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:531`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:549`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/turn-stop` | `serial` | [`packages/core/agent/src/types.ts:568`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`strictSerial (serial)`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | @@ -26,16 +27,17 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `session/created` | `emit` | [`packages/core/session/src/index.ts:47`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence) | | `session/event` | `emit` | [`packages/core/session/src/index.ts:61`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence), [`stdio-agent`](../packages/ui/stdio-agent) | | `session/flush` | `parallel` | [`packages/core/session/src/index.ts:79`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | -| `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:107`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | -| `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:73`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | -| `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:84`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`tool-subagent`](../packages/subagent/tool-subagent) | -| `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:96`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | -| `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:44`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | -| `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:54`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | -| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:151`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | -| `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:121`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`timeout-policy`](../packages/timeout/timeout-policy) | -| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:141`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | -| `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:97`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:109`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | +| `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:75`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | +| `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:86`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`tool-subagent`](../packages/subagent/tool-subagent) | +| `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:98`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | +| `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:45`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | +| `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:55`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | +| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:170`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | +| `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:125`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`timeout-policy`](../packages/timeout/timeout-policy) | +| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:145`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | +| `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:98`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `tools/result` | `parallel` | [`packages/core/tools/src/index.ts:160`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`events.dispatch`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | `workflow/agent-end` | `emit` | [`packages/workflow/workflow/src/index.ts:96`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/agent-start` | `emit` | [`packages/workflow/workflow/src/index.ts:85`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/end` | `emit` | [`packages/workflow/workflow/src/index.ts:106`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | diff --git a/docs/persistence-catalog.md b/docs/persistence-catalog.md index 917386af9b..aba91c76aa 100644 --- a/docs/persistence-catalog.md +++ b/docs/persistence-catalog.md @@ -219,7 +219,7 @@ One bridged sub-dispatch from a `run_code` program: the parent `run_code` call i Types: [CallId](core-data-structures/core.md) -Source: [`packages/core/tools/src/code-mode.ts:36`](../packages/core/tools/src/code-mode.ts) +Source: [`packages/core/tools/src/code-mode.ts:38`](../packages/core/tools/src/code-mode.ts) #### `tool/result` — surface diff --git a/docs/rfc/implemented/architecture/2026-06-11-microkernel-event-taxonomy.md b/docs/rfc/implemented/architecture/2026-06-11-microkernel-event-taxonomy.md index 501f8c7331..80b9b86e2a 100644 --- a/docs/rfc/implemented/architecture/2026-06-11-microkernel-event-taxonomy.md +++ b/docs/rfc/implemented/architecture/2026-06-11-microkernel-event-taxonomy.md @@ -10,9 +10,10 @@ The product principle is "everything is a plugin": hooks, /goal, /loop, dynamic Pure Cordis event taxonomy. The loop's extension seams are typed events with deliberate dispatch modes: -- **waterfall** (around-middleware) where plugins mutate or veto: `agent/prompt-submit`, `agent/request`, `agent/step-result`, `agent/turn-continuation`, `tools/pre-execute`, `tools/post-execute`, `llm/stream`, `system-prompt/assemble`. -- **emit** (sync fire-and-forget) for notifications: turn/step boundaries, stream chunks, lifecycle, errors. -- **parallel** (awaited) for the one durability checkpoint: `session/flush`. +- **waterfall** (around-middleware) where plugins transform, veto, or wrap: `agent/prompt-submit`, `agent/request`, `agent/step-result`, `agent/turn-continuation`, `tools/pre-execute`, `tools/execute`, `tools/post-execute`, `llm/stream`, `system-prompt/assemble`. +- **serial** (awaited in listener order; a bail value stops later listeners) for ordered checkpoints: every `agent/pre-step` listener runs when all abstain, while the first stop returned from `agent/turn-stop` makes the terminal decision final. +- **parallel** (awaited fan-out) where every listener must get an independent chance: the `session/flush` durability checkpoint and the immutable observe-only `tools/result` notification. +- **emit** (synchronous fire-and-forget) for notifications: turn/step boundaries, stream chunks, lifecycle, and errors. The event vocabulary lives in interface packages (dsh-agent declares the agent/* events); `@deepseek-ai/dsh-agent-loop` is the only concrete loop plugin and is itself swappable — nothing outside it may depend on it. diff --git a/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md b/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md index e786adbfe8..2b1c198812 100644 --- a/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md +++ b/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md @@ -33,11 +33,9 @@ These invariants hold and are pinned by tests: - A `tool-bash` HMR reload does NOT make an existing background task readable or killable by a different session (ownership survives on the executor). - Existing non-ACP demos still work without managing handles explicitly; config-created agents remain owned by the `AgentLoop` plugin fiber. -## Seam precondition (recorded) +## Session owner tokens are unique among live agents -The bash owner-token comparison relies on `session.header.id` being unique among live agents. The agent registry does NOT enforce this — it rejects a duplicate *agentId*, not a duplicate session id, and `createAgent` accepts an arbitrary `sessionId`. This is NOT reachable via ACP (UUID sessionId, `agentId === sessionId`, duplicate-load rejected), so it is not a live product hole, but a programmatic caller that registers two agents with the same session id would break bash isolation and mis-route the completion notice. The access *policy* (token comparison) stays in `tool-bash` (the consumer); the bash seam stores only an opaque `owner` string and never interprets it — the correct interface/impl/consumer split. - -The planned resolution is to remove the precondition by construction — see [unify the agent id and the session id](../../proposed/simplification/2026-06-20-unify-agent-and-session-id.md): once an agent IS its session (one id), the registry's existing unique-`agentId` check is a unique-session-id guarantee and no two live agents can share a session token. +The bash owner-token comparison relies on `session.header.id` being unique among live agents. `SessionStore.enter()` rejects a duplicate live session id, and the async agent factory reserves both agent and session ids across persistence loading and unpublished setup before rechecking the store at publication. A programmatic caller therefore cannot publish two live agents with one session token. The access *policy* (token comparison) stays in `tool-bash` (the consumer); the bash seam stores only an opaque `owner` string and never interprets it — the correct interface/implementation/consumer split. ## Alternatives considered diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index 8d7a5ab251..f5a4cb4b24 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -4,308 +4,702 @@ Status: implemented ## Problem -The harness runs multiple agents inside one application, but those agents need different capabilities and policies. A child created to summarize a file may need a different persona, a smaller tool set, and listeners that govern only its work; applying those contributions to every agent would leak authority and couple otherwise independent runs. +One application can run many agents that share infrastructure but must not share every capability or policy. A child agent may need a different persona, fewer tools, its own structured-result schema, and listeners that govern only its work, while still using the deployment's model adapters, persistence backend, tool implementations, and user interface. -This is not the same problem as running several isolated applications. The agents intentionally share the deployment's model adapters, persistence backend, tool implementations, and other services. What varies is the view assembled for one agent and the policy attached to its activity. +This is a composition problem, not an application-isolation problem. Starting a separate service graph for every child would isolate too much; putting every registration in one global graph isolates too little. -The affected extension surfaces include both data and behavior: - -| Surface | Per-agent need | Failure when global | +| Surface | What varies by agent | Failure when it is only global | |---|---|---| -| Tools | Hide dangerous or irrelevant tools; add a child-only result tool; replace one implementation for one agent | The model sees excess authority, or a child-specific tool leaks into every prompt | -| Prompt sections and variables | Give a child its own persona or runtime facts | Every agent receives the same instructions or values | -| Event listeners | Apply a hook, guard, or continuation policy to one agent | A listener written for one agent can veto or mutate another agent's work | -| Lifetime | Remove all of the above when the agent ends | Manual cleanup misses failure, cancellation, hot-reload, or owner-teardown paths | +| Tools | Available capabilities, a child-only tool, or a scoped replacement for one implementation | The model receives excess authority, or a child-specific tool leaks into every prompt | +| Prompt state | Persona, instructions, variables, and Code Mode SDK declarations | Every agent receives the same instructions or runtime facts | +| Live policy | Hooks, execution guards, result observers, and continuation rules | A listener intended for one agent can alter another agent's work | +| Lifetime | Cleanup when the agent fails, is cancelled, is disposed, or loses its owner | Registrations outlive the agent or disappear before its final work settles | -The model-visible and executable views must also agree. Hiding a tool only from the prompt is not a security boundary if a generated call can still execute it; hiding it only from execution produces a prompt that advertises unusable capabilities. The same consistency requirement extends to Code Mode bindings and user-interface presentation. +Two consistency requirements make the problem deeper than filtering a list. First, the model-visible and executable views must agree: a hidden tool must not remain callable, and an advertised tool must not fail merely because execution used a different registry view. This agreement must also cover Code Mode bindings and UI presentation. -The subagent API exposes the practical gap. A provider can accept a child persona, a tool filter, and a structured-output schema, but those options are honest only if two concurrent children can receive different registrations without mutating shared global state. +Second, some rules are invariants rather than cooperative extensions. An ordinary middleware listener may replace a prompt assembly, turn an allow into a deny, rewrite a result, force another model step, or short-circuit listeners registered after it. Structured output therefore cannot rely on being “first” or “last” in an extensible listener chain; the owning service needs a final boundary for rules that later listeners must not undo. + +The subagent API makes both needs concrete. Two concurrent children can request different personas, tool filters, and output schemas. Those requests are honest only when each child receives an independently owned view and when its terminal-output protocol survives unrelated plugins. ## Decision -Each live agent owns a registration context named `agent.ctx`. Registering through the application's ordinary plugin context contributes globally; registering through `agent.ctx` contributes to that agent alone and ties the contribution's lifetime to the agent. +Each live agent owns a registration context named `agent.ctx`, and services expose narrow owner-final policy boundaries where ordinary middleware ordering is not strong enough. Together these choices make one agent's world composable with normal plugin APIs while keeping authority, observation, and cleanup aligned. -The rule is intentionally small enough to be the normal plugin-author mental model: +The design has three parts: -| Registration context | Visibility | Lifetime owner | +| Part | Rule | Purpose | |---|---|---| -| Ordinary plugin context | Every agent | The registering plugin | -| `agent.ctx` | Exactly that agent | That agent | +| Registration scope | A registration through a plain plugin context is global; the same registration through `agent.ctx` belongs to that agent | Reuse existing APIs for per-agent tools, prompt state, and listeners | +| Lifecycle transaction | Create and resume await scoped setup while the agent and session are unpublished, then publish them in an ordered rollback-covered sequence | No observer sees a partially composed agent, and every failure path owns cleanup | +| Owner-final policy | Prompt protection, tool guards, final tool-result observation, and terminal turn stopping run at service-owned boundaries | Invariants do not depend on listener registration order | -The scope is flat. A child does not inherit registrations from its parent's scope; parent/child lineage remains explicit session data. A child sees the deployment-global layer plus its own layer, which prevents accidental authority inheritance through an agent tree. +The scope is flat. An agent resolves the deployment-global layer plus its own layer; a child does not inherit registrations from its parent's scope. Parent/child lineage remains explicit session data, and parent-owned disposal links lifetimes without silently inheriting authority. -This decision is implemented by the [`dsh-scope` primitive](../../../../packages/core/scope/README.md), scope-aware tool and prompt registries, scope-filtered event dispatch, and an agent lifecycle that creates and destroys the entire scoped world as one ordered operation. +The implementation lives primarily in [`dsh-scope`](../../../../packages/core/scope/README.md), [`dsh-agent`](../../../../packages/core/agent/README.md), [`dsh-system-prompt`](../../../../packages/core/system-prompt/README.md), and [`dsh-tools`](../../../../packages/core/tools/README.md). The [generated Cordis event catalog](../../../cordis-catalog/events.md) is the exhaustive event-signature reference; this RFC explains why the contracts have their current shape. -## Background: the Cordis concepts used by the design +## Background: the small Cordis vocabulary used here -The implementation reuses four Cordis mechanisms. Readers do not need Cordis internals beyond this section; the [Cordis primer](../../../cordis-primer.md) is the broader reference. +The design relies on four framework ideas: contexts, effects, waterfall events, and dispatch receivers. This section gives the complete mental model needed for the rest of the RFC; the [Cordis primer](../../../cordis-primer.md) covers the framework more broadly. -### Contexts provide services +### A context is both a service view and a registration origin -A Cordis context is the object through which a plugin reaches shared services such as `ctx.tools`, `ctx.systemPrompt`, and `ctx.sessions`. A service call retains the context used to access it, so a registry can tell whether a registration came through an ordinary plugin context or through an agent's context without adding a scope argument to every method. +A Cordis `Context` is the object through which a plugin reaches services such as `ctx.tools`, `ctx.systemPrompt`, and `ctx.sessions`. A service method can recover the context through which it was accessed, so the service can tell whether a call came from an ordinary plugin context or from an agent's scoped context without adding a `scope` parameter to every registration API. -Contexts also represent a capability view. A derived context can reach only the services made available by the plugin that created it. Handing out `agent.ctx` therefore hands out the agent loop's injected service surface, a deliberate part of the `Agent.ctx` contract rather than an ambient root context. +A context also carries a capability view. A derived context reaches the services injected into the plugin that created it. Handing out `agent.ctx` therefore hands out the agent loop's injected service surface; it is not an ambient root context. -### Effects own registrations +### Effects give registrations an owner -Registrations are Cordis effects: adding a tool, prompt section, or listener returns cleanup behavior owned by the context's runtime unit, called a fiber. Disposing a fiber unwinds all effects registered through it, which is the basis for hot reload and reliable cleanup. +A Cordis effect is work whose cleanup belongs to a runtime unit called a fiber. Tool registration, prompt contribution, and event subscription are effects, so disposing their fiber unwinds them on normal teardown, failure, or hot reload. -`dsh-scope` creates a no-op plugin fiber for each scope. The fiber contributes no behavior of its own; it exists to provide one lifetime bucket for everything registered through the scoped context. +`dsh-scope` mounts a no-op plugin fiber for each scope. The plugin contributes no behavior; its fiber is the ownership bucket for everything registered through the scoped context. -### Event dispatch can filter listeners +### A waterfall is ordered around-middleware -Cordis decides which listeners receive an event by inspecting the object used as the dispatch receiver, known as the event's `this` value. `dsh-scope` supplies a receiver with a filter: unscoped listeners are admitted for compatibility, while a scoped listener is admitted only when its key matches the event's subject. +A Cordis waterfall is an extensible middleware chain. A listener calls `next()` to delegate, can inspect or replace the downstream result, and can return without calling `next()` to short-circuit everything inside it. -### Disposal order requires explicit nesting +This flexibility is useful for cooperative transformations, but registration order is not an invariant boundary. A later plugin can prepend another listener, a wrapper can replace the downstream result after `next()` returns, and a short-circuit can prevent inner listeners from running at all. -Cordis may dispose sibling effects concurrently. When order matters, a generator effect yields the exact disposer functions to create a nested last-in-first-out chain; wrapping a disposer in another function breaks the identity Cordis uses to remove it from the concurrent sibling set. +### The dispatch receiver selects scoped listeners -This detail drives both `Scope.rawDispose` and the convention that registry `register` methods return their exact Cordis disposer. It is what lets agent teardown wait for the loop, then unregister the agent, then detach the session, rather than racing those operations. +Cordis filters event listeners using the dispatch receiver, the object exposed as `this` inside a function-style listener. `dsh-scope` supplies a receiver carrying the operation's scope key, so the event system can admit global listeners plus listeners registered for that key and reject listeners belonging to other agents. -## Scope model +This receiver is live coordination state, not a durable session fact. The distinction matters later: `tools/result` is a live final-outcome notification, while the similarly named `tool/result` is an append-only session event stored for replay and model history. -The scope primitive joins visibility and ownership while remaining independent of the agent packages. This lets lower-level packages such as sessions and prompt assembly participate without depending upward on the agent loop. +## Agent-scoped registrations -### One registration fact controls two properties +An agent scope couples two facts that must not drift apart: who can see a registration and who disposes it. The calling context determines both facts, leaving the domain-specific merge rules to each registry. -The decisive fact is which context performed a registration. The scope tag selects its visibility layer, and the same context's fiber owns its disposal. +### The resolution model is global plus exactly one scope -Keeping those properties coupled prevents a dangerous state such as “visible to agent A but disposed with unrelated plugin B.” An API shaped as `register(value, { agent })` would make that state expressible and would retain global registration as the easy-to-forget default. +Every scope-aware registry keeps a global layer and per-scope layers. Resolving for agent A combines the global layer with A's layer only; it does not walk A's parent lineage or combine sibling scopes. -### Scope keys are opaque identities +| Registration origin | Visible to | Disposed with | +|---|---|---| +| Plain plugin context | Every agent | The registering plugin | +| `agent.ctx` | That agent only | That agent's scope | -A scope key is an object compared by identity, not a string or database identifier. The harness uses the live `Agent` object as its own key, so event payloads and execution records that already carry an agent can select the right scope without translating through another registry. +Named scoped contributions shadow a same-named global contribution. A child persona is therefore a scoped `deployment:persona` section, and a per-agent tool implementation can keep the same model-facing name. Duplicate names within one layer still fail loudly. The deliberate exception is a globally protected prompt-section name, whose owner reserves it against scoped shadowing. -Object identity decouples a live scope from externally meaningful or sequentially reused string IDs. The key is meaningful only during the live agent's lifetime. +The plugin-facing mechanism is the same API called through a different context. In language-neutral pseudocode: -### The primitive has four responsibilities +```text +# Deployment-wide contribution +appContext.tools.register(readTool) -The public API is small; the package README carries the exact signatures. +# Contribution visible only to agent A and disposed with A +agentA.ctx.tools.register(childOnlyTool) -| Responsibility | Mechanism | +resolveTools(agent A): + visible = copy(globalTools allowed by A's restrictions) + visible.overlay(tools registered through A.ctx) + visible.append(reserved presentation transport, when configured) + return visible +``` + +There is no `for each ancestor` step. Resolving for A never reads the parent or sibling layers. + +The scope key is an opaque object compared by identity. The harness uses the live `Agent` object as its own key, so event payloads, tool executions, and prompt assemblies that already carry the agent can select the correct layer without translating through a string ID that may later be reused. + +### `agent.ctx.agent` is an association, not the scope resolver + +`agent.ctx` carries an own `agent` property for setup code and plugin ergonomics. Contexts derived from it inherit that association, while a plain context reads `undefined`. + +The property is deliberately not treated as the authoritative scope tag. A nested scope can install a nearer scope key while still inheriting the original `ctx.agent` association, so lower-level services resolve layers with `scopeOf(context)`. In normal agent composition the two point at the same live agent; the separation keeps the generic scope primitive independent of the agent package. + +### The scope primitive has separate public and composite disposal forms + +`dsh-scope` exposes the minimum operations needed to create a layer, read it, target events, and dispose it. “Quiescent” here means that every asynchronous cleanup registered in the scope has settled and no teardown work remains in flight. + +| Operation | Responsibility | |---|---| -| Create an ownership bucket | `createScope(context, key)` mounts the no-op fiber and returns its derived context | -| Read the registration layer | `scopeOf(context)` reads the nearest inherited scope tag | -| Filter event delivery | `scopeTarget(subject, key)` creates the dispatch carrier | -| Tear down in a larger ordered lifecycle | `Scope.rawDispose` exposes the exact fiber disposer | +| `createScope(context, key)` | Mount the ownership fiber and return its tagged derived context | +| `scopeOf(context)` | Read the nearest inherited scope key | +| `scopeTarget(subject, key)` | Build the receiver used for scope-filtered dispatch | +| `Scope.dispose()` | Give ordinary callers an idempotent promise shared by repeat and racing calls until quiescence | +| `Scope.rawDispose` | Expose the exact Cordis disposer so a larger generator lifecycle can nest it at a precise teardown position | -Derived contexts inherit the tag, and a nested scope replaces it with the nearer key. This allows `agent.ctx.plugin(...)` to build a reusable profile whose registrations remain scoped to the same agent. +The two disposal forms solve different framework constraints. Cordis identifies nested effects by disposer-function identity, so an ordered composite lifecycle must yield `rawDispose` exactly. Cordis disposers are also single-shot, so a second raw call may not await the first asynchronous teardown; `Scope.dispose()` follows the backing fiber's in-flight lifecycle and gives all ordinary callers the same quiescence boundary, including a race in which `rawDispose` started first. The test/tooling `ScopeHost.dispose()` extends that shared boundary across its host fiber and every minted child scope. -### Scoping is explicit at each seam +The primitive itself is small. Its essential implementation shape is: -The scoped context automatically supplies effect ownership, but it does not magically change every service operation. A scope-aware registry must read `scopeOf()` when registering, and a scope-filtered event dispatcher must provide a carrier naming the operation's subject. +```text +createScope(parentContext, key): + fiber = mount no-op plugin under parentContext + scopedContext = derive fiber.context with nearest-scope-tag = key -Read and execution operations select their subject explicitly: callers use `tools.schemas(agent)`, `tools.get(name, agent)`, `tools.execute({ agent, ... })`, or `systemPrompt.assemble({ scope: agent, agent })`. Calling `agent.ctx.systemPrompt.assemble()` with an empty assembly context still asks for the global layer. This separation lets a shared service operate on behalf of any agent while making the subject visible at the call site. + rawDispose = fiber's exact disposer + dispose = memoized operation that: + invoke rawDispose if it has not started + follow fiber's in-flight teardown until quiescent -## Registration resolution + return { ctx: scopedContext, rawDispose, dispose } +``` -The tool and system-prompt services each keep a global layer plus a map of per-scope layers. Resolution combines only the global layer and the requesting agent's own layer. +Derived contexts inherit the nearest scope tag. Mounting an ordinary plugin under `agent.ctx` therefore preserves the agent's scope, while deliberately creating another scope replaces the tag for registrations below it. -### Scoped names shadow global names +### Registry resolution stays domain-specific -For named contributions, the scoped definition wins over a global definition with the same name. Duplicates inside one layer still fail loudly. +The shared primitive answers “which layer?” and “who owns cleanup?” but does not force every service to merge data the same way. Tools, prompt sections, variables, and tool-schema providers retain rules appropriate to their domains. -Shadowing is what makes a child persona ordinary configuration: the system-prompt service owns a global `deployment:persona`, and a child registers another section with that name through its context. The same rule supports a per-agent implementation of a model-facing tool without renaming the tool. +Prompt sections, prompt variables, and tools use scoped-over-global shadowing by name. Tool-schema providers are additive, but a provider registered through `agent.ctx` participates only in that agent's assemblies. Read operations name the subject explicitly: tool lookup and execution receive an agent or scope, and prompt assembly receives an `AssembleContext` whose `scope` selects the layer. -Tool-schema providers are additive rather than named, but a provider registered through `agent.ctx` is consulted only for that agent's assemblies. Prompt variables use the same named-shadowing rule as sections and tools. +Calling a service through `agent.ctx` does not implicitly make every later read agent-scoped. For example, `agent.ctx.systemPrompt.assemble()` without an assembly scope still requests the global layer. This keeps shared services able to operate on behalf of any subject and makes the subject visible at the read or execution call site. -### Restrictions mask global tools; scoped tools are explicit grants +### Tool registrations are frozen snapshots -`agent.ctx.tools.restrict({ allow, deny })` filters the global tool layer for that agent. `allow` keeps only listed names, `deny` removes listed names, and multiple restrictions intersect so independently installed policies can only reduce the global surface. +The tool view must not change because a caller kept the object it passed to `register()` or received a definition from `get()` or `visible()`. Registration therefore creates the stored identity once; future changes happen through explicit unregister/register effects. -Restrictions do not remove tools registered in the agent's own layer. A scoped tool is an explicit grant, which is necessary for facilities such as a child's `structured_output` capture tool to remain available under a restrictive allow-list. +Tool parameters cross the model and log boundary, so the registry requires them to be lossless JSON before cloning and validates the clone again to contain unstable getters. It snapshots the scalar fields, binds each callback once to the original definition as its method receiver, and deep-freezes the stored record. Replacing `definition.execute` after registration therefore has no effect, while a callback can still deliberately read mutable state from its closure or original receiver. `get()` and `visible()` return the frozen stored definitions; `schemas()` returns detached schema projections. -The restriction snapshots its arrays when registered, validates every named tool against the current pre-restriction universe, and rejects an empty filter. These choices make configuration mistakes loud and prevent later caller mutation from changing a live policy. +```text +registerTool(context, definition): + require definition.parameters is lossless JSON + parameters = clone(definition.parameters) + require parameters is still lossless JSON -An out-of-view tool resolves exactly like an unregistered tool and returns `UNKNOWN_TOOL` if called. This avoids exposing whether a hidden global implementation exists. + stored = deepFreeze({ + copied name, description, timeout, + parameters, + execute: bind definition.execute to definition, + presentation callbacks: bind once when present + }) -### One visibility function feeds every consumer + layerFor(scopeOf(context)).add(stored.name, stored) +``` -The tool registry defines one canonical `visible()` rule and every consumer uses it for prompt schemas, lookup, execution, Code Mode's generated SDK and bindings, timeout-policy lookup, Cordis inspection, and ACP presentation. A model cannot be shown one definition while execution or the UI resolves another. +The reserved Code Mode transport uses the same frozen-definition contract even though it lives outside the ordinary layers. -Code Mode introduces one intentional distinction. A restriction is per-agent runtime state, so a globally configured `toolOrder` may name a restricted-away tool and simply leave an empty position for that agent. By contrast, `mode: 'code'` is deployment configuration that deliberately collapses the wire-visible universe to `run_code`; a `toolOrder` that still names native tools is invalid configuration and fails every assembly. +### Tool restrictions reduce end capabilities without removing transport -To preserve this distinction, a prompt tool provider returns both the post-restriction schemas and the pre-restriction `knownNames` universe. Ordering validates names against the latter but orders only the former. +A tool restriction masks the global end-capability layer for one agent, while tools registered in that agent's own layer are explicit grants. Multiple restrictions intersect, so separately installed policies can only reduce the global surface. + +The restriction snapshots its input, rejects an empty filter, and validates named tools against the pre-restriction capability universe. A restricted-away tool behaves like an unknown tool at execution, avoiding disclosure of a hidden global implementation. + +[Code Mode](../feature/2026-06-15-code-mode.md)'s `run_code` is not an end capability. It is a reserved presentation transport that carries calls to the visible end capabilities, so the registry keeps it outside both global and scoped registration layers: restrictions cannot remove it, a scoped tool cannot shadow it, and configuration cannot explicitly allow or deny it. Without this exception, a restriction could leave the generated SDK in the prompt but remove the only way to invoke it. + +The registry still uses one executable visibility view. It first resolves restricted global capabilities plus scoped grants, then appends the reserved transport in non-native modes; registry-owned prompt schemas, lookup, execution, Code Mode SDK bindings, timeout lookup, inspection, and UI presentation all consume that view. + +The guarantee covers the tool registry's contribution. A plugin can deliberately use the lower-level `systemPrompt.tools()` API or assembly waterfall to add an unrelated wire schema; that plugin owns the matching executable behavior and any ordering it introduces. Owner protection preserves reserved named infrastructure without turning the system-prompt service into a validator for unrelated contributions. + +`knownNames` serves a narrower configuration purpose: it is the pre-restriction end-capability universe used to distinguish a typo from a deliberately hidden tool. The system-prompt provider adds presentation names when validating `toolOrder`: `code` mode accepts only `run_code`, `both` accepts end capabilities plus `run_code`, and a per-agent restriction may remove a known capability from one assembly without turning the deployment's order configuration into an error. ## Scoped event delivery -Registrations alone are insufficient: a listener installed for one agent must hear only events about that agent. Scoped dispatch applies that rule while preserving the existing behavior of global plugins. +Scoped registration is incomplete unless behavior follows the same boundary. An event about agent A reaches global listeners and A-scoped listeners, never listeners installed for B. -### Delivery is global-plus-matching-scope +### Delivery is global plus the matching scope -For an event about agent A, the dispatch carrier admits ordinary unscoped listeners and listeners registered through A's context. It rejects listeners registered through every other agent context. +The dispatch receiver carries the operation's scope key. Its filter admits an unscoped listener or a listener registered through the matching scoped context, while a subject-less dispatch admits unscoped listeners only. Cordis's explicit `{ global: true }` listener option remains the intentional bypass for infrastructure that must observe every dispatch. -A subject-less dispatch, such as an agent-less tool execution or a bare session created outside an agent scope, admits only unscoped listeners. Cordis's explicit `{ global: true }` listener option still bypasses filtering for infrastructure that intentionally observes everything. +Registry-membership notifications remain unfiltered. Events such as `tools/change`, `system-prompt/change`, and `subagent/provider-*` describe shared registry state rather than one agent's activity, so a scoped subscriber still observes those global changes. -Events about registry membership stay unfiltered. A notification that a tool or provider was added concerns shared registry state rather than one agent's activity, so scoped subscribers to `tools/change`, `system-prompt/change`, or `subagent/provider-*` still hear the global notification. +### Each event family derives its key from its real subject -### Each event family has one scope source +The operation being described determines the key; callers cannot attach an unrelated scope. Fused helpers and store-owned carriers keep the payload subject and delivery subject together. -The event subject determines the key; callers do not choose an unrelated scope. - -| Event family | Scope key | +| Event family | Scope source | |---|---| -| `agent/*` | The event's agent | -| `tools/pre-execute`, `tools/execute`, `tools/post-execute` | `execution.agent`, or no key for an agent-less call | -| `system-prompt/assemble` | The assembly context's scope | +| `agent/*`, including `agent/turn-stop` | The event's agent | +| `tools/pre-execute`, `tools/execute`, `tools/post-execute`, `tools/result` | `ToolExecution.agent`, or no key for an agent-less call | +| `system-prompt/assemble` | `AssembleContext.scope` | | `session/created`, `session/event`, `session/flush` | The owner scope captured when the session enters the store | | `subagent/start`, `subagent/end` | The delegating parent agent | -Agent events use `agentEvents(context, agent)`, which creates the carrier and injects the same agent as the first event argument in one operation. Prompt assembly similarly uses `assembleContextFor(agent)` to set both the human-friendly `agent` field and the scope selector. These fused helpers make a mismatched carrier and subject difficult to express. +The dispatch rule can be read independently of Cordis internals: -The session store captures its carrier when a session is entered because later appends and flushes may originate from code that no longer has the agent's context in hand. `ctx.sessions.flush(session)` is the only durability-checkpoint entry point, so callers cannot forget the captured carrier. +```text +dispatchScoped(subject, scopeKey, event, arguments): + carrier = proxy(subject, tag = scopeKey) -### The carrier is method-transparent + for listener in listeners(event): + if listener has no scope tag or requests the explicit global bypass: + call listener with this = carrier + else if listener.scopeTag == scopeKey: + call listener with this = carrier + else: + skip listener +``` -Cordis passes the dispatch carrier to a function-style listener as `this`. Agent event declarations allow a listener to call methods such as `this.send(...)`, so the carrier must behave like the real subject rather than merely look like it. +The real helpers fuse values that must agree: `agentEvents(context, agent)` supplies the same agent as subject, scope key, and first event argument; session storage captures its carrier once at `enter()`. -The carrier is a JavaScript proxy whose property reads use the real subject as receiver and whose methods are bound to that subject. This matters for classes with native private fields: calling a method with the proxy itself as receiver would throw because the proxy does not possess the class's private-field identity. +`agentEvents(context, agent)` creates the carrier and injects that same agent as the first event argument. `assembleContextFor(agent)` similarly sets both the agent-facing field and the scope selector. The session store captures its carrier when a session enters because later appends and flushes may occur where the original agent context is no longer available. -The proxy preserves the subject's own event filter, writes through to the subject, returns the real constructor, and obeys JavaScript's invariants for frozen own properties. Its object identity is intentionally not transparent; the actual subject is also present in event arguments whenever identity matters. +### The carrier behaves like the subject but has distinct identity -`Scoped` is a TypeScript-only marker requiring a carrier at scoped dispatch sites. It adds no runtime behavior; runtime carrier marks and development invariants provide the corresponding check for JavaScript and casted code. +Function-style listeners receive the carrier as `this`, and agent event APIs allow them to call subject methods. The carrier is therefore a JavaScript proxy that reads and writes through to the real subject and binds methods to it. + +Binding matters for classes with JavaScript private fields: a method called with the proxy itself as receiver would fail the runtime private-field identity check. The proxy preserves the subject's existing event filter and JavaScript object invariants, but it is intentionally not identity-equal to the subject; event arguments carry the real object whenever identity matters. + +`Scoped` is a TypeScript-only marker that requires this carrier at declared scoped dispatch sites. It improves authoring but adds no runtime security, so runtime marks and development invariants check the same contract for JavaScript, casts, and hand-written dispatches. ## Agent creation and teardown -An agent's scope, session, registry entry, and driver loop form one lifecycle. Creating them inside one composite effect gives both rollback on partial construction and deterministic teardown on every ownership path. +An agent's scope, session, registry entry, and driver form one owned transaction. Setup finishes before publication, publication is synchronous and rollback-covered rather than magically atomic, and teardown reaches one ordered quiescent boundary. -### Creation has a deliberate composition window +### Create and resume reserve identities before asynchronous work -Agent creation proceeds in this order: +Programmatic create and resume reserve both the agent ID and session ID before work that can await. Create prepares a fresh or seeded session; resume first loads and reconstructs the persisted session. Both paths then construct the agent, mint `agent.ctx`, and install the complete teardown skeleton before awaiting setup. -1. Construct the live agent object. -2. Mint its scope and assign `agent.ctx`. -3. Enter the session through `agent.ctx`, capturing the session's carrier. -4. Announce `session/created`. -5. Register the agent, which announces `agent/created`, so setup code can resolve it. -6. Run `CreateAgentOptions.setup(agentCtx)` to compose scoped tools, prompt contributions, restrictions, listeners, or child plugins. -7. Emit `agent/session-start`. -8. Start the driver loop. +The factory captures IDs and the setup callback and clones caller-owned agent options, session metadata, and seed events before the first asynchronous boundary. Resume does the same before persistence loading. A caller mutating its options object later therefore cannot move the transaction away from the identities it reserved or change the configuration eventually published. -The setup callback runs inside the storage rollback boundary and before the first prompt assembly. A synchronous throw removes the agent and session and unwinds every scoped registration, so no half-created entry keeps either ID occupied. +Reservations prevent two concurrent transactions from composing different unpublished agents under the same public identity. They remain held across persistence loading and setup and are released on every success or failure path. -The two creation notifications occur before setup. Observers can therefore see the pre-setup world, and listeners installed by setup do not receive this agent's `session/created` or `agent/created`; rollback cannot retract external side effects those earlier listeners performed. This is a current atomicity limitation, not a guarantee provided by the setup window. +Resume installs an owner-liveness sentinel before reserving IDs or starting persistence I/O, then races loading against owner disposal. If disposal wins, resume rejects and releases both reservations immediately; a backend promise that settles later cannot publish. After a successful load, the factory synchronously installs the full agent lifecycle before removing the sentinel, so ownership passes from load to setup without an unobserved disposal gap. -Setup performs direct synchronous registrations but does not drive the agent. Calling `send`, `steer`, or `inject` there could open a turn before `agent/session-start`, reversing a lifecycle contract used by bridges and hooks; development invariants report that misuse at the first `turn/start`. Mounting an asynchronously activating child plugin also does not extend the synchronous setup window unless its activation ordering is separately awaited. +The sentinel exists only for the interval in which no agent lifecycle can exist yet: -### Teardown waits for one quiescent boundary +```text +resume(request): + snapshot request ids, options, and setup callback + sentinel = owner.effect(onDispose => signal ownerDisposed) + reserve(agentId, sessionId) -The yielded disposers produce this teardown order: + try: + persisted = await firstOf(persistence.load(sessionId), ownerDisposed) + session = reconstruct(persisted) -1. Request the loop to stop and await its actual exit, including its closing session events and durability flush. -2. Unregister the agent. -3. Detach the session from the store. -4. Unwind the scope's listeners and registrations. + # This call installs the full lifecycle before its first await. + starting = startOwned(agentId, session, options, setup) + disarm and dispose sentinel + return await starting + finally: + release both ids + settle the sentinel transaction +``` -Detaching the session before the asynchronous scope unwind keeps registry and store rollback synchronous on construction failures. Scoped listeners remain installed through the stop-and-drain phase, so they hear the final flush before the session detaches. +If `ownerDisposed` wins, the load promise may continue inside the backend, but it has no path back to publication. -Cordis disposers are single-shot but a second call does not necessarily await a first call already in progress. The agent lifecycle therefore owns a shared completion promise in addition to the raw disposer. Tool cleanup, parent teardown, explicit `AgentHandle.dispose()`, and owner-fiber unload all await the same fully quiescent result. +### Setup composes an unpublished world -Every registry returns its exact effect disposer so the composite lifecycle can preserve this order even when the whole owner fiber unloads. Returning a wrapper would leave the inner registration as a concurrently disposed sibling and could emit `agent/disposed` while the final turn was still draining. +The optional `setup(agentCtx)` callback receives the new agent context and may synchronously register contributions or await child-plugin activation. During setup, neither the session nor agent is visible through its global registry, but `agentCtx.agent` exposes the unpublished agent to the code composing it. + +Setup may register scoped tools, prompt sections, variables, restrictions, listeners, protections, or child plugins. If it throws or rejects, the scope unwinds without publishing either object, and the reserved IDs become reusable. If the owner unloads during an await, the preinstalled teardown skeleton marks the transaction inactive; late setup completion cannot publish. + +After setup settles, the factory yields one microtask checkpoint and rechecks the lifecycle flag, owner-fiber state, and owning agent's disposed state. Cordis begins owner unload synchronously but may run nested effect disposers in the next microtask; the explicit owner checks and checkpoint let a same-turn unload win instead of allowing an immediately fulfilled setup to publish an already-doomed agent. + +Setup composes but does not drive. The concrete agent rejects `send`, `steer`, `inject`, and `cancel` until publication reaches the session-start boundary, keeps its inbox in a JavaScript native-private field, and allows only one concrete driver to claim a session. Driver startup is absent from the package surface: the package exports neither its loop/inbox internals nor source subpaths, and only instance-bound controls held by the factory can enable and start the driver. JavaScript or a type cast therefore cannot bypass the lock by calling a public `start()` or writing directly into the queue. These boundaries prevent a turn from opening before lifecycle listeners know the session exists. + +The common create/resume tail makes the unpublished boundary explicit: + +```text +startOwned(snapshot, preparedSession): + world = prepareLifecycle(snapshot, preparedSession) + # world now owns agent.ctx and the complete rollback/teardown skeleton + + try: + await firstOf(snapshot.setup(world.agent.ctx), world.deactivated) + await oneMicrotask() + require world.lifecycleActive + require world.ownerFiberActive + require world.ownerAgentNotDisposed + + world.publish(snapshot.source) + return handle(world.agent, world.dispose) + catch error: + await world.dispose() + throw error +``` + +`setup` can await arbitrary plugin activation, but every exit still passes through the already-installed disposer. + +### Publication is ordered and rollback-covered + +After setup succeeds, the factory publishes in one synchronous sequence with no `await` between steps: + +1. Enter the session store and capture its scope carrier. +2. Enter the agent registry without announcing it. +3. Emit `session/created`. +4. Emit `agent/created`. +5. Enable driving. +6. Emit `agent/session-start`. +7. Start the driver loop. + +The implementation keeps publication synchronous and leaves rollback to the surrounding owned transaction: + +```text +publish(world): + world.detachSession = world.agent.ctx.sessions.enter(world.session) + world.detachAgent = app.agents.enter(world.agent) + app.sessions.announce(world.session) + app.agents.announce(world.agent) + world.driver.enableDrivingVerbs() + emitNonVetoing(agent/session-start) + world.stopDriver = world.driver.start() +``` + +Both registry entries exist before the first creation listener runs, and setup-installed listeners receive both announcements. Driving opens immediately before `agent/session-start`, so that event remains the first supported place for a listener to inject or queue startup work. + +The sequence is not described as atomic because observers run between its steps. If a `session/created` or `agent/created` listener throws, the transaction rolls the registry entries and scope back, but effects already performed by an earlier listener cannot be retracted. An announced agent is paired with its disposal notification during rollback. `agent/session-start` is a non-vetoing notification: listener failures are logged and contained so the loop still starts. + +### Teardown stops work before revoking its world + +Every owner path uses the same reverse order: stop the loop and await its actual exit, remove the agent from the registry, detach the session, then unwind the scope. The final session events and durability flush therefore happen while the session and scoped listeners are still live. + +```text +disposeOwnedAgent(world): + world.stopDriver() + await world.agent.done # waits for any in-flight turn close and flush + world.detachAgent() # emits agent/disposed when announced + world.detachSession() + await world.scope.dispose() +``` + +The actual Cordis generator yields these disposers in reverse so its last-in-first-out teardown executes in the order shown. + +`agent/disposed` means the driver is quiescent and the agent has left the registry; session detachment and scope unwind may still be completing after that notification. `AgentHandle.dispose()` is memoized so concurrent owners await the same full transaction, and `Scope.dispose()` provides the corresponding shared boundary for direct scope disposal and raw-disposer races. + +Parent-owned subagents use explicit ownership rather than capability inheritance. The driver creates one run-owner fiber under `parent.ctx` and invokes the child factory through that fiber, so lifecycle ownership exists before setup or publication begins; disposing a parent reaches its descendants even if a delegating tool never reaches its own `finally`. The child still receives a newly minted scope and resolves only global plus child-scoped capabilities. + +## Owner-final policy boundaries + +Cooperative waterfalls remain the general extension mechanism, but an invariant belongs after the last transformable point. The design adds four narrow boundaries, each owned by the service that can define what “final” means. + +### Prompt protection restores named canonical contributions + +`systemPrompt.protect({ sections, tools })` declares that selected names must match the canonical registry/provider assembly after the complete `system-prompt/assemble` waterfall. Protections registered globally and for the current scope compose by set union, so callback order cannot weaken them. Protection finalizes a returned assembly rather than recovering from listener failure; if the waterfall throws, assembly still fails. + +For each protected name, the service restores the canonical presence and definition. If the canonical assembly omitted the name, protection removes a listener-fabricated entry; this makes mode-dependent absence enforceable as well as presence. + +A global section protection also reserves the registry name against scoped shadowing. Registering a scoped section under an already protected global name throws, and adding global protection throws if any scoped shadow already exists. Section registration copies `name`, `order`, and the text value or callback before the check and stores that record, so later mutation of the caller's object cannot rename a safe section into a reserved one. This check must happen before assembly: otherwise the ordinary scoped-over-global merge would make the shadow itself look canonical, leaving post-waterfall restoration with the wrong owner's value. Tool-schema protection does not impose a blanket schema-name reservation because providers are additive and may deliberately contribute unrelated executable schemas. + +Restoration is intentionally not a whole-assembly reset. The service first removes protected names from the waterfall result, then reinserts protected canonical entries in their canonical order immediately before the first surviving later unprotected canonical neighbor, or at the end when no such neighbor survives. Unprotected entries keep the ordering and definitions chosen by the waterfall. This anchor rule preserves the protected contribution's meaningful local placement without claiming that protection restores every global relative position after arbitrary listener reordering. + +```text +registerSection(input, scope): + stored = copy(input.name, input.order, input.text) + if scope exists and stored.name is globally protected: + fail before registration + sectionLayer(scope).add(stored) + +assemble(context): + canonical = assemble registries for context.scope + transformed = await systemPromptAssembleWaterfall(clone(canonical)) + + for each protected name: + remove every transformed entry with that name + if canonical contains the name: + if a later unprotected canonical neighbor survived: + insert the canonical entry before that neighbor + else: + append the canonical entry + + return transformed +``` + +This algorithm restores a protected entry's definition, presence or absence, and useful local anchor without erasing unrelated listener output. + +Code Mode uses global protection for the `tools:sdk` section and reserved `run_code` schema. Structured output adds scoped protection for its instruction and capture schema. These are named guarantees: unrelated listeners may still contribute unrelated sections or tools. + +### Tool executions have stable identity + +`ctx.tools.execute(input)` accepts a caller-owned `ToolExecutionInput` and snapshots it into a distinct pipeline-owned `ToolExecution`. The registry requires `arguments` to be losslessly JSON-serializable, validates before cloning and again after cloning to contain unstable accessors, then deep-freezes the detached value. A cloneable but mutable exotic such as `Map` is rejected before policy rather than smuggled through an apparently frozen wrapper. Invalid input still produces one normalized final error notification. + +The registry assigns each pipeline trip a frozen, property-free `ToolExecutionToken`; callers cannot choose that token. The execution's `token`, `callId`, `name`, `agent`, optional opaque `parent` token, and detached `arguments` are non-writable and non-configurable from the first policy listener onward. `signal` is the only operational field: an around-dispatch wrapper may add, replace, or remove it, and the registry freezes the complete execution before outcome observation. + +Stable identity prevents a listener from changing which capability or scope was authorized after policy ran. It also gives commit-style observers a safe `WeakMap` key even when an adapter reuses a model call ID. + +For a nested transport dispatch, `parent` carries only the enclosing execution's opaque token rather than its live object. Code Mode sets an SDK sub-call's `parent` to the outer `run_code` execution's `token`, so an observer can correlate the two outcomes without receiving a reference that could mutate the still-running outer wrapper. + +The input-to-execution conversion is intentionally one-way: + +```text +prepareExecution(input): + require input.parent is absent or a registry-minted token + require input.arguments is lossless JSON + detachedArguments = clone(input.arguments) + require detachedArguments is still lossless JSON + + execution = { + token: new frozen property-free object, + callId: input.callId, + name: input.name, + arguments: deepFreeze(detachedArguments), + agent: input.agent, + parent: input.parent, + signal: input.signal + } + + make every field except signal non-writable and non-configurable + return execution +``` + +### Tool guards can deny but never re-allow + +`ctx.tools.guard()` installs a synchronous global or scope-specific guard after the extensible `tools/pre-execute` waterfall and before dispatch. A guard returns a denial reason or `undefined`; it has no allow result. + +This one-way result makes the boundary monotonic. Pre-execution hooks can still compose ordinary allow, deny, and ask decisions, but no listener ordering can convert a guard denial back into dispatched work. A denied call still continues through result transformation and final observation as an error outcome. + +### `tools/result` observes the authoritative live outcome + +The complete live pipeline is `tools/pre-execute` → monotonic guards → `tools/execute` → `tools/post-execute` → `tools/result`. The first three named events are transformable waterfalls; `tools/result` is an awaited, observe-only notification after all transforms and the registry's outer error normalization. Immediately before that boundary, the registry validates that the entire authoritative result can round-trip losslessly through JSON; an invalid tool or listener result becomes a normal JSON-safe `isError` outcome instead of reaching observers as apparent success and failing later at the session log. + +Every `tools/result` listener receives the same frozen execution and deep-frozen result snapshot. Listener failures are contained independently, so they cannot change the caller's result or starve peer observers. Scope filtering derives from `execution.agent`. + +`tools/result` is not the durable session event `tool/result`. The live notification belongs to the registry and also fires for direct programmatic executions; the agent loop subsequently appends `tool/result` to the session log for replay, UI reconstruction, and model history. A policy that needs the final in-process verdict uses the former, while a consumer that needs persisted transcript state uses the latter. + +The entire registry method reads like one authority ladder: + +```text +execute(input): + try: + execution = prepareExecution(input) + catch invalidInput: + execution = frozen identity shell with arguments = undefined + result = errorResult(invalidInput) + await tools/result observers with independent failure containment + return result + + try: + ordinaryDecision = await tools/pre-execute(execution) + if ordinaryDecision allows: + denial = firstRegisteredGuardDenial(execution) + else: + denial = ordinaryDecision.denial + + if denial exists: + result = errorResult(denial) + else: + result = await tools/execute(execution, next = dispatchRegisteredTool) + result = requireValidExecutionResult(result) + + result = await tools/post-execute(execution, result) + result = requireLosslessJson(result) + catch pipelineFailure: + result = errorResult(pipelineFailure) + + freeze(execution) + frozenResult = deepFreeze(clone(result)) + await every tools/result observer independently, containing each failure + return result +``` + +Waterfalls can transform only at their named stages. Guards can only deny, and the final observers can only observe. + +### `agent/turn-stop` makes a composed continuation terminal + +Ordinary continuation remains extensible. The loop computes a default, runs the `agent/turn-continuation` waterfall, records any force-continue reason as steering, and folds pending steering into the decision because steering normally demands another model step. + +The scoped serial `agent/turn-stop` checkpoint runs after that folding. Its strict serial helper consults listeners in order until one returns a non-`undefined` value; a listener returns `{ action: 'stop' }` or abstains with `undefined`. The dedicated helper exists because ordinary Cordis serial dispatch treats `null` and `false` as framework abstentions, while this public contract has exactly one abstention value. A stop is terminal, so later listeners and pending steering cannot restore continuation. A malformed result, including `null` or `false`, or a throwing policy closes the current turn with an error while leaving the driver available for later work. + +Terminal stop deliberately discards steering while preserving ordinary queued prompts. Its terminal state remains in force through `turn/end` and the durability flush, so steering added by continuation, turn-close, or flush listeners cannot escape through the loop's late-steering fallback into another step or turn. This is the explicit exception to the normal rule that leftover steering becomes input for another turn. The authority is reserved for protocols, such as a completed structured child, where further model work would violate the result contract. + +```text +afterSuccessfulStep(turn): + decision = await agent/turn-continuation(defaultDecision) + record decision.reason as steering when present + if steering is pending: decision = continue + + terminal = await strictSerial(agent/turn-stop) + # undefined means abstain; null, false, malformed values, and throws are errors + if terminal == stop: + discard steering + terminalStopped = true + decision = stop + + append turn/end + await session/flush + + if terminalStopped: + discard steering added by turn/end or flush listeners + else: + move leftover steering to the next-turn queue +``` + +The queued-prompt FIFO is separate and is never drained by terminal stop. ## Subagent composition -The subagent seam demonstrates why agent scoping exists: a provider can compose a child-specific world with ordinary registrations and let the agent lifecycle own it. +In-process subagents demonstrate how the scope, lifecycle, and final-policy pieces compose. A provider builds the child's world during unpublished setup, then lets the ordinary agent lifecycle own it. -### Persona and tool filters become real capabilities +### Inputs and ownership are fixed before asynchronous creation -The in-process spawn and fork providers advertise persona and tool-filter support because their child setup can register a shadowing `deployment:persona` section and a tool restriction through the child's context. ACP remains honest about not supporting those capabilities because it delegates to a separate process whose registration context is not locally available. +Starting a run snapshots every accepted field before asynchronous owner setup. The parent and abort signal are retained as identity capabilities but never reread from the mutable request record; tool filters, seed events, agent options, output schema, and prompt are detached. The schema is validated before cloning, while the prompt must pass the same lossless-JSON check before and after cloning that the session log requires. Later caller mutation therefore cannot change lifecycle scope, configuration, the schema enforced by the capture tool, or the prompt eventually logged and sent. -Omitted configuration stays absent. This matters for schema-driven configuration: a materialized empty `allow` list means “allow nothing,” which is not equivalent to an omitted list, and an empty filter is not equivalent to no filter. The configuration schema preserves those distinctions before setup calls `restrict`. +The driver first installs provider ownership. Only after that succeeds does it attach the request's abort listener and create one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves neither a child nor an orphaned listener. The child factory runs through the owner fiber. Parent teardown, provider teardown, and manual run disposal all dispose this same node; moving it out of the active state synchronously prevents an unpublished setup from publishing afterward, while all three paths follow one quiescence promise. This structured ownership does not change the child's flat capability view. -### Parent disposal owns the subtree +```text +startInProcessRun(providerContext, acceptedRequest): + snapshot all request data, including parent identity -After creating a child, the in-process driver registers the child's memoized disposer as an effect on the parent scope. Disposing a parent therefore reaches the whole descendant tree even if the delegating tool's `finally` block never runs. + providerLink = providerContext.effect(onDispose => disposeRunOwner()) + attach snapshot.abortSignal listener + runOwner = mount no-op plugin under snapshot.parent.ctx -This is structured concurrency expressed through ownership rather than through scope inheritance. The child still has a flat capability view—global plus child-only registrations—while its lifetime is linked explicitly to the parent. + returnedRun.dispose = () =>: + dispose providerLink + await disposeRunOwner() -### Structured output becomes per-child state + childHandle = await runOwner.ctx.agents.create({ + fresh ids and lineage, + cloned options and optional seed, + setup(childCtx) => install persona, tool restriction, structured runtime + }) +``` -A structured child registers a real-schema `structured_output` tool and its instruction section through its own context. Concurrent children can carry different schemas because each resolves only its own tool definition; no placeholder global schema, reference count, or strip-for-other-agents pass is needed. +Parent teardown reaches `runOwner` by nesting; the provider and returned run handle reach the same node through their explicit disposers. -Four scoped listeners enforce the terminal protocol: +### Persona, filtering, and lifetime use ordinary registrations -1. An outer prompt-assembly listener reasserts the exact tool schema and instruction after downstream listeners have run. It replaces an existing tool in place, appends it when absent, removes duplicates, and restores the instruction to its order-190 section band. -2. A tool pre-execution listener denies calls after a value has been captured, preventing later side effects in the same model response. -3. A tool post-execution listener commits a staged value only if the final pipeline decision accepts that same execution. -4. A turn-continuation listener stops the child after capture instead of spending another model step merely because a tool ran. +A child persona is a scoped `deployment:persona` section that shadows the deployment-wide section. A child tool filter is a scoped restriction over global end capabilities. Omitted filters remain omitted; a materialized empty `allow` list means “allow nothing” and is not confused with absence. -Staging is keyed by the `ToolExecution` object's identity in a `WeakMap`, not by the model or adapter's call ID. Only the pipeline trip whose tool body staged a value can commit it; a blocked trip cannot leave state that a later call with a reused ID accidentally promotes. The weak key also allows an abandoned stage to be reclaimed without global cleanup bookkeeping. +The child's persona, filter, and structured runtime are installed inside factory setup. The common run-owner fiber gives structured-concurrency-style teardown without importing the parent's capability layer into the child. + +### Structured output is a child-owned terminal protocol + +A structured child registers a real-schema `structured_output` tool and its instruction through its own context. Concurrent children can use different schemas because each scope resolves its own definition, with no global placeholder, reference count, or remove-for-everyone-else pass. + +Presentation mode changes where the model invokes the capture capability, but not which child owns it: + +| Tool mode | Registry's canonical wire contribution | Generated SDK | Structured-output guarantee | +|---|---|---|---| +| `native` | Visible end-capability schemas, including scoped `structured_output` | None | Protection restores the capture schema and instruction | +| `code` | Reserved `run_code` transport | Visible end-capability bindings, including `structured_output` | Protection keeps `run_code` and the SDK present, keeps native `structured_output` absent from the wire, and restores the instruction | +| `both` | Visible native schemas plus reserved `run_code` | Visible end-capability bindings, including `structured_output` | The model may call the protected capture capability natively or through the protected transport | + +The table describes the registry's named canonical contribution. An unrelated assembly listener may deliberately add another schema; protection does not erase unrelated names. + +### Capture uses stage, final commit, monotonic denial, and terminal stop + +The capture tool validates its arguments and stages the cloned value in a JavaScript `WeakMap` keyed by the immutable `ToolExecution`. This is an object-identity table whose key does not keep an abandoned execution alive. Validation failure becomes the ordinary `INVALID_ARGS` error that the model can correct within the turn. + +The scoped `tools/result` observer commits a direct native capture only when that exact execution's authoritative final result succeeds. A later call with a reused string call ID cannot reach the weak-keyed stage, and a post-execution block cannot promote it. + +```text +# Native structured-output call +structured_output.body(value, execution): + validate value against this child's schema + staged[execution] = clone(value) + return ordinary success + +on tools/result(execution, finalResult): + if execution is staged: + value = staged.remove(execution) + if finalResult succeeded: + captured = value +``` + +For a Code Mode SDK call, successful inner observation records a pending value against the child execution's opaque `parent` token instead of committing immediately. When the enclosing `run_code` reaches its own `tools/result`, the observer compares that pending token with the outer execution's `token` and commits only on success. A program error or outer post-policy block discards the pending value. This extra boundary is necessary because an inner side effect can succeed while the transport that is supposed to deliver the structured answer still fails. + +```text +# Code Mode adds an outer transport commit +on tools/result(innerStructuredCall, innerResult): + if innerStructuredCall is staged: + value = staged.remove(innerStructuredCall) + if innerResult succeeded: + pending = { outerToken: innerStructuredCall.parent, value } + +on tools/result(outerRunCodeCall, outerResult): + if pending.outerToken == outerRunCodeCall.token: + value = pending.value + pending = none + if outerResult succeeded: + captured = value +``` + +The native path has one final-result commit; Code Mode has two because the inner capability and outer transport can fail independently. + +Once a value is captured or pending on its outer transport, the scoped `ToolGuard` denies later calls in the same response. After a committed capture, the scoped `agent/turn-stop` ends the turn after ordinary continuation and steering have been folded. Together these boundaries prevent post-capture side effects and prevent a successful tool call from purchasing an otherwise automatic extra model step. + +The provider does not re-prompt a child that finishes without a committed capture. Such a run returns an error result with no `structured` value; requesting an output schema creates a requirement, not a guarantee that a failed child produces a value. ## Correctness enforcement -Scoping errors are dangerous because a missed carrier silently restores global delivery. The implementation therefore makes the safe path short and checks it at type, runtime, test, and documentation boundaries. +Scope mistakes are fail-open if they merely omit a carrier, so the implementation checks the contract at API, type, runtime, and repository-gate boundaries. None of these checks substitutes for using the correct runtime carrier. -### Compile-time and API shaping +### API shape couples subjects that must agree -Scoped event declarations require the `Scoped` carrier marker. `agentEvents` couples carrier creation to the agent argument, `assembleContextFor` couples agent prompt facts to the scope selector, and session flush is a service method that owns carrier lookup. +`agentEvents(context, agent)` couples the dispatch carrier to the agent argument, `assembleContextFor(agent)` couples prompt facts to the scope selector, and `SessionStore.flush(session)` owns lookup of the carrier captured when the session entered the store. These helpers make a mismatched subject harder to express than the correct spelling. -These TypeScript checks improve authoring but are not treated as a security boundary: JavaScript callers, casts, and hand-written dispatches can bypass them. +### Type markers cover every scoped event declaration -### Development-time invariants +Scoped agent, tool, prompt, session, and subagent lifecycle events declare a `Scoped` receiver. TypeScript therefore rejects a bare subject at typed dispatch sites, including the `subagent/start` and `subagent/end` paths whose scope is the delegating parent. -The invariants plugin observes Cordis's internal dispatch seam. For every scope-filtered event it verifies that a carrier exists and, where the subject is present in the arguments, that the carrier key is the same object. Session and subagent lifecycle payloads do not expose the owner key, so their runtime check proves carrier presence only; the session store and subagent service centralize the dispatch spelling that selects the key. The plugin also rejects an assembly context whose `agent` and `scope` fields disagree and a setup callback that opens a turn before `agent/session-start`. +The marker is compile-time only. JavaScript callers, casts, and direct use of Cordis's dispatch APIs can bypass it, which is why the runtime checks remain necessary. -The invariant checks run before listener delivery, so a violation points at the dispatching call site instead of appearing later as cross-agent behavior. +### Development invariants check actual dispatch -### Drift gates and focused tests +The invariants plugin observes Cordis's internal dispatch path before listener delivery. For each scope-filtered event it requires a marked carrier and, where the event arguments expose the subject, verifies that the carrier key is the same object. -`verify-scoped-dispatch` compares the runtime invariant table with the event declarations marked as scope-filtered. The generated event matrix also rejects a declared event with no recognized dispatcher, preventing helper-shaped calls from disappearing silently from the architecture documentation. +Session and subagent payloads do not expose the owner key directly, so their invariant proves carrier presence while their service centralizes how the correct key is chosen. Additional invariants reject an assembly whose `agent` and `scope` disagree and a turn opened before `agent/session-start`. -Focused tests cover scoped visibility, shadowing, restrictions, carrier transparency, setup rollback, teardown order, shared quiescence, session delivery, structured-output tamper recovery, stale-stage isolation, Code Mode bindings, and parent-child disposal. The [events catalog](../../../cordis-catalog/events.md) remains the exhaustive event contract rather than being duplicated here. +### Repository gates keep declarations and dispatchers aligned + +`verify-scoped-dispatch` compares the declared scoped events with the runtime invariant table, and the generated event matrix requires every declaration to have a recognized dispatcher. Source JSDoc is regenerated into the [event catalog](../../../cordis-catalog/events.md), keeping the exhaustive signature and mode reference in one place. ## Alternatives considered -The alternatives below solve only part of the problem or separate visibility from ownership, which would make safe composition harder to reason about. +The rejected designs either split visibility from ownership, isolate the wrong boundary, or depend on extension ordering for correctness. -### Pass an agent or scope option to every registration +### Pass an agent option to every registration -An API such as `tools.register(definition, { agent })` makes global registration the leak-by-omission default and requires every registry to invent parallel scope plumbing. It also lets visibility point at one agent while cleanup belongs to an unrelated context. +An API such as `tools.register(definition, { agent })` leaves global registration as the leak-by-omission default and requires parallel scope plumbing in every registry. It also allows “visible to agent A, disposed with unrelated plugin B,” which the scoped context makes unrepresentable. -The chosen design leaves existing registry signatures unchanged and uses the calling context as the single source of both facts. +### Create one isolated service graph per agent -### Create an isolated service instance per agent +Service isolation chooses one registry instance for a context, while agent composition needs a merged view of deployment-global contributions plus one agent's additions. Per-agent graphs would duplicate shared adapters and force infrastructure such as persistence and UI bridges to discover every new instance. -Cordis isolation selects one service instance for a context. Agent composition needs a merged view—deployment-global tools plus one agent's additions—not a choice between two independent registries. +Isolation remains appropriate for independent applications. It is too coarse for collaborating agents inside one deployment. -Per-agent service instances would require delegating merge registries for every scoped service and would force single-subscription infrastructure such as persistence and ACP to discover and subscribe to each new instance. Isolation remains the right bulkhead for co-hosting independent applications, not for agents collaborating inside one application. +### Inherit the parent's scope into a child -### Filter events but keep registries global +Hierarchical capability inheritance makes lifetime convenient but silently grants every child the parent's scoped tools and policies. A flat view plus an explicit parent-owned disposer separates the two questions: the parent owns the child without conferring its authority. -Listener filtering prevents a hook from intercepting the wrong agent, but it does not scope the model-visible tool schemas, prompt sections, variables, or executable tool lookup. Persona, tool filtering, and concurrent structured-output schemas would remain impossible or require ad hoc mutation. +### Publish the agent before running setup -### Add first-class scope support to vendored Cordis +Early publication lets setup resolve the agent from global registries, but observers can see and act on a partially configured world. Rollback can remove entries but cannot retract external effects from already-run listeners. -Cordis already exposes the primitives needed for this design: derived contexts, effect-owning plugin fibers, and listener filtering through the dispatch receiver. Modifying the vendored framework would add synchronization and maintenance cost without providing an additional harness capability. +The unpublished callback already receives both the agent context and its `ctx.agent` association, so early global lookup is unnecessary. -### Give each subsystem a separate per-agent API +### Allow only synchronous setup -Tool filters, prompt profiles, listener predicates, and session routing can each be implemented independently. That approach multiplies concepts, cleanup paths, and opportunities for the views to disagree. +Synchronous setup is simpler but cannot honestly compose a child plugin whose activation is asynchronous. In TypeScript, a callback returning a promise can also be assigned to a void-returning callback type, so declaring setup as synchronous would not reliably prevent accidental escape from the rollback boundary. -The shared scope primitive gives every subsystem the same answer to “which agent sees this?” and “when does it go away?” while letting each registry retain its own domain-specific resolution rules. +Awaited setup makes the transaction explicit and keeps the first assembly behind it. + +### Enforce invariants with prepended waterfall listeners + +A prepended listener is not necessarily outermost: another plugin can prepend later, a short-circuit can skip inner work, and an outer wrapper can replace the result after delegation. The same issue appears in prompt assembly, tool authorization, result commit, and turn continuation. + +The owner-final APIs express the actual strength required by each rule: restore named canonical data, deny monotonically, observe the immutable final outcome, or stop after all ordinary continuation inputs are folded. + +### Filter events while keeping registries global + +Listener filtering prevents a hook from intercepting the wrong agent but does not scope tool schemas, executable lookup, prompt sections, variables, or Code Mode bindings. Persona, tool filtering, and concurrent structured schemas would still require global mutation. + +### Add scope semantics to vendored Cordis + +Cordis already provides derived contexts, effect-owning fibers, and receiver-based listener filtering. The harness-level primitive combines those mechanisms without adding a framework fork whose synchronization cost would outlive this feature. ## Consequences -The design adds one central concept and some low-level implementation machinery. In return, it makes per-agent composition ordinary, leak-resistant, and lifecycle-safe. +The design makes per-agent composition ordinary and lifecycle-safe at the cost of a small scope runtime and several deliberately narrow final-policy APIs. The complexity is concentrated in services and dispatch helpers rather than repeated in every plugin. ### Benefits -- Plugin authors use the same registration APIs globally or per agent; only the context changes. -- An agent's prompt, executable tools, Code Mode bindings, policy listeners, and UI definitions resolve from the same scoped view. -- Agent disposal revokes its registrations automatically, including failure and hot-reload paths. -- Subagent persona, tool filtering, structured output, and parent-owned teardown compose without global mutation. -- Existing unscoped plugins remain global observers and contributors, preserving the deployment-wide extension model. +The main benefit is one composition model across data, behavior, and lifetime: registrations follow their context, while service-owned finalizers protect only the invariants that require stronger ordering. + +- Plugin authors use the same registration APIs globally and per agent; only the context changes. +- Registry-owned prompt schemas, executable lookup, Code Mode bindings, policy listeners, and UI presentation resolve from the same agent view. +- Create and resume expose no partially configured registry entry during awaited setup. +- Agent disposal revokes scoped contributions after the driver and final session flush have settled. +- Structured output composes per child without global mutation or listener-order assumptions. +- Existing unscoped plugins remain deployment-wide contributors and observers. ### Costs and constraints -- Every agent-subject event dispatcher must carry the correct scope; types, fused helpers, invariants, and gates exist because omission would otherwise fail open to global delivery. -- `agent.ctx` is a capability-bearing context. The loop plugin's injected service set determines what holders can reach. -- Scoped registry layers consume memory for the agent lifetime and add a two-layer resolution step, then disappear on scope disposal. -- The dispatch carrier is proxy-shaped and not identity-equal to its subject, even though property access and method calls are transparent. -- Restrictions are flat and apply only to the global tool layer; scoped registrations are deliberate grants, and parent scopes do not confer capabilities on children. -- The generic `Scope.dispose()` and `ScopeHost.dispose()` normalize Cordis's single-shot disposer but do not give racing callers a shared quiescence promise; the agent lifecycle adds that stronger boundary itself. -- Setup is a synchronous contract, but its current `(Context) => void` TypeScript shape accepts an `async` function and the runtime does not inspect the returned promise; asynchronous setup can escape rollback and race the first assembly. +The costs are concentrated in dispatch discipline, per-scope registry state, and explicit authority boundaries that are intentionally stronger than ordinary middleware. + +- Every scoped event dispatcher must carry the correct receiver; fused helpers, type markers, invariants, and gates exist because omission would otherwise deliver only to global listeners. +- `agent.ctx` is capability-bearing. Its available services come from the agent loop's injected context, so holders receive that deliberate service surface. +- Registries maintain per-scope maps and perform a global-plus-one-layer merge for the agent lifetime. +- The dispatch carrier is proxy-shaped and not identity-equal to its subject, even though method calls and property access behave like the subject. +- Flat scopes do not inherit parent capabilities; a desired child capability must be global or explicitly registered for the child. +- `run_code` is protected transport infrastructure rather than a filterable end capability, so a policy that must forbid programs denies execution at the tool-policy layer instead of removing the transport from a Code Mode prompt. +- Prompt protection restores named canonical contributions and their anchor placement, not the entire assembly; unprotected output remains extensible, while a globally protected section name is deliberately unavailable for scoped shadowing. +- Terminal turn stopping has authority to discard pending steering. That power is appropriate for owner-enforced terminal protocols and too strong for ordinary cooperative continuation policy. +- Programmatic `ctx.agents.create()` and `ctx.agents.resume()` are asynchronous because they await setup. The config-only `ctx.agentLoop.create()` path has no setup callback and remains synchronous. +- Ordered composition requires both an exact raw scope disposer and a shared public quiescence promise; the dual surface reflects two distinct Cordis lifecycle requirements. ### Deliberate boundaries -The primitive is general, but this decision scopes only the surfaces needed for coherent agent composition. Per-agent filesystem policy, LLM adapter selection, named profile registries, and background subagents can build on the same context without changing the core scope model. +The scope primitive is generic, but this decision applies it only where one agent needs a coherent registration view: tools, prompt state, scoped events, sessions, and in-process subagent composition. `agent.ctx` does not automatically scope every service call; filesystem policy, LLM interception, background subagent state, and future registries retain their existing seams until their own designs explicitly adopt the context rule. diff --git a/docs/rfc/implemented/feature/2026-06-15-code-mode.md b/docs/rfc/implemented/feature/2026-06-15-code-mode.md index 4cc373c65c..f97e7abf50 100644 --- a/docs/rfc/implemented/feature/2026-06-15-code-mode.md +++ b/docs/rfc/implemented/feature/2026-06-15-code-mode.md @@ -10,39 +10,39 @@ For multi-step tool work this is token-heavy and serial. The model cannot compos Cloudflare's [Code Mode](https://blog.cloudflare.com/code-mode/) proposes an alternative grounded in a simple observation: LLMs are better at writing code than at emitting tool calls, because they have seen millions of lines of real code and comparatively few contrived tool-calling traces. Instead of one tool call per step, the model writes a TypeScript program against a generated API over the tools, the program executes in a sandboxed runtime, and the model curates what comes back — only what it prints or returns — instead of every intermediate result. -An earlier draft of this RFC designed Code Mode as an add-on consumer plugin with zero core changes, deferring the execution substrate to a follow-up. Both constraints are dropped here, deliberately. First, the harness is pre-release and optimizes for the correct foundation over blast radius: tool presentation is the registry's own concern, and bolting a second presentation onto it from outside means transforming the registry's contribution after the fact — a waterfall listener whose correctness depends on listener ordering, which fights the [reconstructable-requests](../../implemented/architecture/2026-07-05-reconstructable-requests.md) design instead of riding it (that refactor removed request mutation from `agent/request`, the seam the old draft relied on). Second, the substrate question is answerable now: a Node `worker_threads` runtime gives real containment — separate isolate, empty environment, heap caps, and a `terminate()` that reliably stops a hot synchronous loop — where the old draft's `node:vm` stub had none of those, and it fits the harness's existing trust model (§Trust posture) without a hardening follow-up. +Tool presentation belongs to the registry that owns tool visibility: implementing a second presentation as an after-the-fact waterfall transform would make correctness depend on listener order and fight [reconstructable requests](../../implemented/architecture/2026-07-05-reconstructable-requests.md). The execution substrate is also part of the foundation rather than a placeholder: Node `worker_threads` provides a separate isolate, an empty environment, heap caps, and termination of a hot synchronous loop, while fitting the harness's existing trust model (§Trust posture). ## Decision Three decisions, each elaborated in its own section below: -1. **Code Mode is a first-class presentation mode of `ToolRegistry`** (`dsh-tools`), selected by a validated `mode` config: `'native'` (today's behavior, the default), `'code'` (the wire carries exactly one tool, `run_code`, plus a generated SDK `.d.ts` in the system prompt), or `'both'` (native schemas *and* `run_code` + SDK). The registry's existing tool-schema provider contributes whatever the mode dictates, so the wire tool list is shaped at its source — no interception, no listener-ordering caveats — and the logged request header records it for free. -2. **Code execution is a capability seam** — a new group `packages/code-runtime/` with the interface package `@deepseek-ai/dsh-code-runtime` owning `ctx.codeRuntime` ([capability seams](../../implemented/architecture/2026-06-13-capability-seams.md); consumer = `dsh-tools`, with core-consumes-a-seam precedent in `agent-loop` → `dsh-llm`). The runtime knows nothing about tools: it is handed a program and named async bindings, runs the program, and reports `{ value, logs, error? }`. Language and substrate are backend properties, so a future Python or container backend is a new implementation package, not a redesign. +1. **Code Mode is a first-class presentation mode of `ToolRegistry`** (`dsh-tools`), selected by a validated `mode` config: `'native'` (the default, contributing the visible capability schemas), `'code'` (the registry contributes only its reserved `run_code` transport plus a generated SDK `.d.ts` in the system prompt), or `'both'` (native schemas and the transport + SDK). The registry shapes its wire contribution at the source and protects the transport pair through final assembly, so the logged request header records the same presentation the model receives. +2. **Code execution is a capability seam** — `packages/code-runtime/` contains the interface package `@deepseek-ai/dsh-code-runtime`, which owns `ctx.codeRuntime` ([capability seams](../../implemented/architecture/2026-06-13-capability-seams.md); consumer = `dsh-tools`, with core-consumes-a-seam precedent in `agent-loop` → `dsh-llm`). The runtime knows nothing about tools: it is handed a program and named async bindings, runs the program, and reports `{ value, logs, error? }`. Language and substrate are backend properties, so a future Python or container backend is another implementation package, not a redesign. 3. **The shipped implementation is `@deepseek-ai/dsh-code-runtime-worker`**: one fresh Node worker thread per run, executing the model's TypeScript after type-strip, with bindings bridged over the message port, an empty environment, configurable heap/output/time caps, and hard termination. Its trust posture is bash-equivalent by design — no unsafe-acknowledgement flags — because the harness already ships `dsh-bash-local`, which executes arbitrary model-written shell commands with strictly *more* ambient authority. ### The registry owns the mode `ToolRegistry` gains a schemastery-validated config (`static Config`), its first: `mode: 'native' | 'code' | 'both'`, default `'native'`. A deployment flips it from `cordis.yml` (`tools: { mode: code }`) — no code edit, per the no-hardcoded-tunables convention. -**Wire tool list = the registry's contribution.** The registry already feeds the assembly through `ctx.systemPrompt.tools(() => this.schemas())`; the provider becomes mode-aware: `'native'` contributes all schemas (unchanged), `'code'` contributes only `run_code`'s schema, `'both'` contributes all schemas plus `run_code`. Because [`PromptAssembly.tools` is the single source the loop's request header snapshots](../../../../packages/core/system-prompt/src/index.ts), the collapse is automatically logged and reconstructable — model-visible ⟺ logged holds with zero new mechanism. Scope of the guarantee, stated honestly: the mode governs the **registry's** contribution, and the registry is the only shipped schema source — but `systemPrompt.tools()` is a public multi-provider API and the `system-prompt/assemble` waterfall may transform the assembly, so a deployment that wires a second direct provider (or a mutating listener) owns what it adds, exactly as in native mode. Those are deliberate acts; what the design eliminates is the *accidental* leak the old draft worried about — a listener-ordering race around an after-the-fact collapse — and the shipped-configuration invariant (`'code'` ⇒ assembled tools exactly `[run_code]`) is pinned by tests and, like every request, by the logged header. +**Wire tool list = the registry's contribution.** The registry feeds assembly through a mode-aware provider: `'native'` contributes every capability visible to that assembly scope, `'code'` contributes only `run_code`, and `'both'` contributes both. Because [`PromptAssembly.tools` is the single source the loop's request header snapshots](../../../../packages/core/system-prompt/src/index.ts), the presentation is logged and reconstructable. The reserved transport is not a capability: it lives outside global/scoped registration and restriction layers, cannot be registered or shadowed, and cannot be named by `ctx.tools.restrict()`. `systemPrompt.protect()` restores its canonical schema after the complete assembly waterfall, so listeners cannot strip, replace, duplicate, or fabricate it. The mode governs only the registry's contribution; a deployment that deliberately installs another direct `systemPrompt.tools()` provider still owns that provider's schemas. -**Interaction with `toolOrder`, stated up front:** a configured `systemPrompt.toolOrder` naming native tools rejects every assembly under `mode: 'code'` (those names are no longer contributed), by the existing fail-loud rule for unlisted names. This is correct behavior, not a bug: a deployment switching modes updates its order config or drops it. +**Interaction with `toolOrder`, stated up front:** a configured `systemPrompt.toolOrder` naming native capabilities rejects every assembly under `mode: 'code'`, because those names are outside that mode's wire-validation universe. This is correct behavior, not a bug: a deployment using Code Mode updates its order config or drops it. -**The SDK prompt section.** Under `'code'` and `'both'` the registry registers one lazy prompt section (`tools:sdk`, in the 100–199 tool-guidance order band) whose thunk regenerates, at each assembly, a TypeScript declaration of every registered tool except `run_code` itself, plus fixed usage instructions. The thunk reads the live store and emits tools in lexicographic name order, so its output is deterministic and stable across steps — an unchanged tool set produces byte-identical text (prefix-cache-friendly; a mid-session registration surfaces as one logged header delta, exactly like a native-mode tool change). +**The SDK prompt section.** Under `'code'` and `'both'` the registry registers one lazy prompt section (`tools:sdk`, in the 100–199 tool-guidance order band) whose thunk regenerates, for each assembly scope, a TypeScript declaration of every visible end-capability tool plus fixed usage instructions. It uses the same visibility resolver as lookup and execution, so scoped grants and shadows appear while restricted globals disappear; the reserved `run_code` transport itself is excluded. The thunk emits tools in lexicographic name order, so an unchanged visible set produces byte-identical text, and `systemPrompt.protect()` restores the canonical section after every assembly listener. Because that protection is global, it also reserves the `tools:sdk` registry name against scoped section shadows; otherwise scoped-over-global resolution could make a later shadow look canonical before restoration. **Codegen.** A pure `jsonSchemaToTs(schema)` module inside `dsh-tools` (sibling of `json-schema.ts` — `schemas()` and the SDK are two projections of the same store) maps the JSON-Schema subset the `defineTool` DSL emits (object/string/number/boolean/array, `properties`, `required`, string `enum` → literal union, nested objects, array `items`, `description` → JSDoc) to a TS type literal. It is **total**: any construct outside that subset (`$ref`, `oneOf`/`anyOf`, `integer`, future MCP shapes, …) degrades to `unknown` without throwing. Because `ToolSchema.name` is an arbitrary string, the SDK is declared as one object constant — `declare const tools: { "some-mcp-tool"(args: …): Promise; bash(args: …): Promise; … }` — quoted keys make every name reachable with no sanitization or alias-collision logic. Typing is advisory (the runtime executes type-stripped JS); the instructions say so. ### The run_code tool and the dispatch bridge -Under `'code'` and `'both'` the registry registers `run_code` in itself as an ordinary tool — one required parameter `{ code: string }` — so the unchanged loop dispatches it through the normal pipeline and `tools/pre-execute` / `tools/post-execute` gate it like any other call (a permission plugin can inspect the program text before it runs). Its `execute(args, exec)`: +Under `'code'` and `'both'` the registry owns `run_code` as a reserved presentation transport with one required parameter, `{ code: string }`. It is represented by a normal `ToolDefinition` for dispatch but stays outside the filterable capability layers, so restrictions cannot accidentally remove Code Mode's only entry point. Calls traverse the complete tool pipeline — `tools/pre-execute` → monotonic guards → `tools/execute` around dispatch → `tools/post-execute` → immutable `tools/result` notification — exactly like native calls; a permission plugin can inspect the program text before it runs, and final-result observers see the normalized outer outcome. Its `execute(args, exec)`: -1. **Builds the bindings**: the bridge owns a **run-scoped `AbortController`** whose signal follows `exec.signal` (an outer cancel propagates in) and which the bridge itself fires the moment the run settles for any reason — completion, program exception, `computeMs`/`maxWallMs` expiry, worker exit. For every registered tool except `run_code`, the binding is an async function that (a) checks the run signal before and after (throwing stops the program — necessary because `ctx.tools.execute()` converts errors to `isError` data), (b) **JSON-normalizes the argument** — a `JSON.parse(JSON.stringify(args))` round-trip, rejecting that one call with a descriptive `Error` when the value does not survive (`BigInt`, circular structures) — because the seam's structured-clone boundary is wider than JSON while the session log accepts only JSON: normalizing BEFORE dispatch makes the dispatched form and the logged form the same JSON value by construction, so an executed sub-call can never fail at logging time, (c) awaits its turn on the **per-run serialization queue** (below), (d) calls `this.execute({ callId, name, arguments, agent: exec.agent, signal: runSignal })` with a deterministic sub-id `` CallId(`${exec.callId}:code:${n}`) `` — the run signal, not the bare outer one, so a budget expiry aborts an in-flight sub-tool (`bash-local` kills on its spec signal) instead of orphaning it, (e) appends a `tool/code-dispatch` session event, and (f) maps the result: success → the text-block contents joined as a `string` (non-text blocks become placeholders, an MVP limitation), `isError` → **the binding rejects** with an `Error` carrying the result text. Rejection is the deliberate model-facing contract — real code signals failure by throwing, `try/catch` and `Promise.all` short-circuiting behave as every model has seen them behave — where the old draft's `{ output, isError }` envelope made error handling a bespoke convention. +1. **Builds the bindings**: the bridge owns a **run-scoped `AbortController`** whose signal follows `exec.signal` (an outer cancel propagates in) and which the bridge itself fires the moment the run settles for any reason — completion, program exception, `computeMs`/`maxWallMs` expiry, worker exit. For every visible capability tool, the binding is an async function that (a) checks the run signal before and after, (b) **JSON-normalizes the argument** — a `JSON.parse(JSON.stringify(args))` round-trip, rejecting that one call with a descriptive `Error` when the value does not survive (`BigInt`, circular structures) — because the seam's structured-clone boundary is wider than JSON while the session log accepts only JSON, (c) awaits its turn on the **per-run serialization queue** (below), (d) calls `this.execute({ callId, name, arguments, agent: exec.agent, parent: exec.token, signal: runSignal })` with a deterministic sub-id `` CallId(`${exec.callId}:code:${n}`) ``, (e) appends a `tool/code-dispatch` session event, and (f) maps the result: success → the text-block contents joined as a `string` (non-text blocks become placeholders), `isError` → **the binding rejects** with an `Error` carrying the result text. The child's readonly `parent` is only the outer execution's frozen, property-free token, so commit-style observers can correlate outcomes without receiving a mutation path into the live `run_code` wrapper. Every sub-call still traverses the full pipeline under its own immutable identity and registry-assigned token. The run signal, rather than the bare outer one, lets budget expiry abort an in-flight sub-tool instead of orphaning it. Rejection gives programs ordinary `try/catch` and `Promise.all` failure semantics rather than a bespoke result envelope. 2. **Runs the program**: `ctx.codeRuntime.run({ program: args.code, bindings: [{ global: 'tools', functions }], signal: exec.signal })`. 3. **Surfaces the outcome — after reaching quiescence.** When `ctx.codeRuntime.run()` resolves, the bridge fires the run-scoped abort (cancelling any in-flight sub-dispatch and abandoning queued-unstarted ones), then **awaits the dispatch queue's drain before returning**, per the dispose-to-quiescence rule in [defensive patterns](../../../defensive-patterns.md): an aborted in-flight sub-call still settles and logs its `isError` `tool/code-dispatch` event *inside* the open turn, and nothing can append after `run_code` returns. A successful run then returns one text block — the captured console/stdout output followed by the rendered return value (if any) — plus a `meta` payload (capped logs, dispatch count) for presentation. A run with `result.error` throws a `CodeRunFailedError extends HarnessError` (`code: 'CODE_RUN_FAILED'`, message = the error kind and text plus captured logs so the model can self-correct); the registry's existing catch turns it into a structured `isError` result. **Sub-call `additionalContext` is suppressed, deliberately.** A `tools/post-execute` hook may attach `additionalContext` to a call; for loop-dispatched calls the loop buffers those and appends each as a `context/message` only after the step's `tool/result`s, preserving call/result adjacency. A sub-dispatch result's `additionalContext` has no such safe outlet from inside a running `run_code`: injecting immediately would land a `context/message` between the parent's `tool/call` and its `tool/result` (breaking the adjacency the buffering exists to protect), and `PostToolDecision.additionalContext` is singular where a program may produce many. The MVP therefore drops sub-call `additionalContext`, pinned by a test and stated in the hooks bridge's docs; the follow-up (a plural context channel or loop-level sub-dispatch buffering) is deferred until a real hook needs it through Code Mode. -**Concurrency: serialized, enforced by the binding.** The bindings are async, so a model writing `Promise.all([tools.a(…), tools.b(…)])` starts both immediately — concurrent dispatch would be the *default*, while the tool contract still carries no concurrency-safety metadata (the open parallel-execution TODO). Each `run_code` invocation therefore owns a dispatch queue and every binding call chains onto it, so even `Promise.all` executes the underlying `ctx.tools.execute()` calls one at a time in submission order; when the run settles, queued-but-unstarted dispatches are abandoned. Lifting this per-tool once tools can declare themselves concurrency-safe is deferred work, same as before. +**Concurrency: serialized, enforced by the binding.** The bindings are async, so a model writing `Promise.all([tools.a(…), tools.b(…)])` starts both immediately — concurrent dispatch would be the default, while the tool contract carries no concurrency-safety metadata (the open parallel-execution TODO). Each `run_code` invocation therefore owns a dispatch queue and every binding call chains onto it, so even `Promise.all` executes the underlying `ctx.tools.execute()` calls one at a time in submission order; when the run settles, queued-but-unstarted dispatches are abandoned. Lifting this per tool remains tied to tools declaring themselves concurrency-safe. **Presentation.** `run_code`'s render intent is decided here per the [render-intent RFC](../../implemented/architecture/2026-07-02-tool-render-intent-union.md): `presentCall` → a `generic` card, `kind: 'execute'`, title `Run code`, `rawInput` = the program text; `presentResult` → a `generic` card whose content is the captured output (from `meta`). Not a `terminal` card: that card's semantics are "a shell command in a working directory", which a program is not. @@ -61,7 +61,7 @@ Each sub-dispatch appends one session event, declared by `dsh-tools` via `Sessio - `CodeRunFailure = { kind: 'exception' | 'timeout' | 'abort' | 'worker-exit'; message: string }` — orthogonal outcomes reported independently per [defensive patterns](../../../defensive-patterns.md); a timed-out run is not an exception, an abort is not a timeout. - Two readonly backend descriptors, informational not gating: `language` (what the program must be written in — `'typescript'` for the shipped backend; a Python backend would say so, and pair with its own SDK generator on the presentation side) and `isolation` (`'worker-thread'` for the shipped backend; `'process'`, `'container'`, … for future ones). `dsh-tools` requires `language === 'typescript'` in the MVP — its codegen emits TS — and fails the assembly loudly otherwise, the same misconfiguration idiom as `toolOrder` violations (as when `mode` is non-native with no `ctx.codeRuntime` loaded at all). -Per explicit-over-implicit at seams, the request spells out everything the runtime acts on; defaulting (timeouts, caps) is the implementation's validated config, never a hidden `??` inside `run()`. Consumption uses the loop's established optional-backend idiom: cordis has no optional injection — every `inject` entry gates activation — so a static `inject` on the registry would hold `ctx.tools` (and every tool plugin behind it) hostage to a code runtime existing even under `mode: 'native'`; instead the registry reads `ctx.get('codeRuntime')` at use time, exactly as `agent-loop` consumes `sessionPersistence`, with absence failing loud in the provider thunk as above. The seam split is justified by real planned divergence on both axes — substrate (worker now; container/microVM later) and language (the Python/AssemblyScript direction sketched in the earlier draft survives as future work) — not by speculation: `dsh-tools` consumes the interface today and tests against a trivial in-repo fake, exactly the interface/implementation/consumer shape of the bash template. +Per explicit-over-implicit at seams, the request spells out everything the runtime acts on; defaulting (timeouts, caps) is the implementation's validated config, never a hidden `??` inside `run()`. Consumption uses the loop's optional-backend idiom: Cordis has no optional injection — every `inject` entry gates activation — so a static `inject` on the registry would hold `ctx.tools` (and every tool plugin behind it) hostage to a code runtime existing even under `mode: 'native'`; instead the registry reads `ctx.get('codeRuntime')` at use time, exactly as `agent-loop` consumes `sessionPersistence`, with absence failing loud in the provider thunk. The seam has concrete divergence on both axes: the worker-thread substrate can be replaced by a container or microVM implementation, and the TypeScript language contract can be paired with a language-specific SDK and runtime. `dsh-tools` consumes only the interface and tests against a trivial in-repo fake, exactly the interface/implementation/consumer shape of the bash template. ### The worker-thread runtime @@ -76,7 +76,7 @@ Per explicit-over-implicit at seams, the request spells out everything the runti ### Trust posture -The worker runtime is **containment, not a security boundary**, and the RFC says so without ceremony. Model code in the worker can reach Node globals — `fetch`, `process` (with an empty env), dynamic `import()` of built-ins — so a deliberately adversarial program has ambient authority comparable to what the harness's own `bash` tool already grants every model turn: `dsh-bash-local` runs arbitrary model-written commands with the host filesystem, network, and a scrubbed-but-populated environment. One asymmetry runs the other way and is stated plainly: `worker.terminate()` ends the thread, not OS processes a program may have spawned via `node:child_process` — weaker than `bash-local`'s process-group kill for direct children (equivalent for double-forked daemons, which survive both); the wall-clock ceiling bounds the worker itself, and orphan cleanup is the same deployment-level concern it already is for bash. Code Mode is gated where bash is gated — `tools/pre-execute`, where permission/sandbox plugins veto or approve the program before it runs — and adds containment bash does not have: empty env, heap caps, hard termination of the program itself, a separate isolate. The earlier draft's two-flag unsafe ceremony (`{ unsafe: true }` constructor + `allowUnsafeRuntime`) existed for a `node:vm` stub with *no* containment and is dropped with it; demanding scarier flags for the better-contained executor than for bash would be posture theater. A deployment that needs a hard boundary (untrusted multi-tenant input) needs it for bash too; that is a future `isolation: 'container'` backend, and the `isolation` descriptor exists so such a deployment can tell backends apart. +The worker runtime is **containment, not a security boundary**. Model code in the worker can reach Node globals — `fetch`, `process` (with an empty env), dynamic `import()` of built-ins — so a deliberately adversarial program has ambient authority comparable to what the harness's own `bash` tool grants every model turn: `dsh-bash-local` runs arbitrary model-written commands with the host filesystem, network, and a scrubbed-but-populated environment. One asymmetry runs the other way: `worker.terminate()` ends the thread, not OS processes a program may have spawned via `node:child_process` — weaker than `bash-local`'s process-group kill for direct children (equivalent for double-forked daemons, which survive both); the wall-clock ceiling bounds the worker itself, and orphan cleanup is the same deployment-level concern it is for bash. Code Mode is gated where bash is gated — `tools/pre-execute`, where permission/sandbox plugins veto or approve the program — and adds containment bash does not have: empty env, heap caps, hard termination of the program itself, and a separate isolate. A `node:vm` executor with no containment would need explicit unsafe acknowledgement; imposing that ceremony on the better-contained worker while bash needs none would be posture theater. A deployment that needs a hard boundary (untrusted multi-tenant input) needs it for bash too; that is a future `isolation: 'container'` backend, and the `isolation` descriptor lets deployments distinguish backends. ### What the model sees @@ -84,37 +84,37 @@ The `tools:sdk` section carries the `.d.ts` plus fixed instructions: the program ## Consequences -The design shipped as four stacked changes — this RFC, the `dsh-code-runtime` interface package, the `dsh-code-runtime-worker` backend, and the `dsh-tools` integration — each gates-green with docs in the same change; review fixes landed on the change that introduced them and merged down. +The design consists of the `dsh-code-runtime` interface package, the `dsh-code-runtime-worker` backend, and the `dsh-tools` presentation and dispatch integration. -What exists now: +Shipped surface: - **The seam**: `packages/code-runtime/` — `@deepseek-ai/dsh-code-runtime` (abstract `CodeRuntime`, the vocabulary above, `ctx.codeRuntime`) and `@deepseek-ai/dsh-code-runtime-worker` (the worker-thread backend, every cap a validated config field). Rows in the service map, capability-seams graph, config catalog, and cordis catalog. -- **The registry surface**: `ToolRegistry`'s first config (`mode`), the mode-aware wire contribution, the `tools:sdk` section, `jsonSchemaToTs`/`renderToolsSdk` (exported), `run_code` + the dispatch bridge + `CodeRunFailedError`, and the `tool/code-dispatch` log event (declaration-merged into `SessionEventMap`, regenerated into the persistence catalog; `run_code` in the tool catalog). -- **The composed surface**: the `tools` config forwards through `agent-core` and both app packages (`stdio-agent`, `acp-agent`); `demo:code-mode` boots each UI example's `code-mode.cordis.yml` overlay (the worker runtime + `mode: 'code'` over the base tree); the adding-a-tool cookbook states that a registered tool is reachable from programs for free, and the tool-pipeline doc shows sub-dispatches re-entering both waterfalls. -- **Interactions inherited by deployments**: a `toolOrder` naming native tools rejects every assembly under `'code'` (update or drop the order config when switching modes); sub-call `additionalContext` is dropped by the bridge (a plural context channel is deferred until a real hook needs it through Code Mode); sub-dispatch stays serialized until tools can declare concurrency safety — the same metadata the native parallel-dispatch TODO waits on. +- **The registry surface**: `ToolRegistry`'s `mode` config, mode-aware wire contribution, protected `tools:sdk` section and reserved `run_code` transport, `jsonSchemaToTs`/`renderToolsSdk` (exported), the dispatch bridge and `CodeRunFailedError`, and the `tool/code-dispatch` log event (declaration-merged into `SessionEventMap`, regenerated into the persistence catalog; `run_code` in the tool catalog). +- **The composed surface**: the `tools` config forwards through `agent-core` and both app packages (`stdio-agent`, `acp-agent`); `demo:code-mode` boots each UI example's `code-mode.cordis.yml` overlay (the worker runtime + `mode: 'code'` over the base tree); every program sub-dispatch resolves the same scoped capability view and re-enters the complete tool pipeline with an immutable link to its enclosing transport execution. +- **Interactions inherited by deployments**: a `toolOrder` naming native tools rejects every assembly under `'code'` (update or drop the order config when switching modes); restrictions can hide end capabilities but cannot remove the presentation transport; sub-call `additionalContext` is dropped by the bridge (a plural context channel is deferred until a real hook needs it through Code Mode); sub-dispatch stays serialized until tools can declare concurrency safety — the same metadata the native parallel-dispatch TODO waits on. ## Testing What the suites pin, per tier: - **Unit — worker runtime** (real workers, no mocks): output/value capture and log-source attribution; error kinds (exception incl. non-erasable syntax, abort, worker-exit under OOM); the two budgets from both sides (a hot loop behind an un-awaited pending dispatch dies at `computeMs` busy time; a program idling on a slow binding outlives `computeMs` and dies only at `maxWallMs`); binding-bridge hostility (junk/forged port traffic incl. non-object messages and forged `log`/`done` cap bypass attempts, unknown names, duplicate ids, post-settlement replies, `__proto__`/`constructor`/`toString` binding names); structured-clone fallback and cap truncation; `env` emptiness verified from inside a program; dispose-awaits-exit. A real-load-path e2e runs the BUILT package under plain `node` so the worker entry resolves both unbuilt (tsx) and built — the published-artifact guard from [docs/testing.md](../../../testing.md). -- **Unit — registry integration**: the codegen table (DSL subset, quoted names, `unknown` degradation, byte-identical determinism); provider contribution per mode (`'native'` unchanged, `'code'` exactly `[run_code]`, `'both'` all + `run_code`); `toolOrder × mode` rejection; missing-runtime / wrong-language loud failures; serialization non-overlap (a probe tool records enter/exit under `Promise.all`); abort aborting the in-flight sub-dispatch and abandoning queued ones; binding rejection on `isError` and on JSON-unrepresentable arguments; `CodeRunFailedError` → structured `isError` carrying kind + logs; `tool/code-dispatch` payloads (JSON-normalized arguments identical to what dispatched); `deriveMessages()` ignoring the event; sub-call `additionalContext` suppression; HMR safety (disposing the registry removes the tool and the section). +- **Unit — registry integration**: the codegen table (DSL subset, quoted names, `unknown` degradation, byte-identical determinism); provider contribution per mode (`'native'` capabilities, `'code'` exactly `[run_code]`, `'both'` capabilities + `run_code`); reserved-name, restriction, shadow, assembly-protection, and `toolOrder × mode` invariants; missing-runtime / wrong-language loud failures; full-pipeline and opaque parent-token behavior for sub-dispatches; serialization non-overlap (a probe tool records enter/exit under `Promise.all`); abort aborting the in-flight sub-dispatch and abandoning queued ones; binding rejection on `isError` and on JSON-unrepresentable arguments; `CodeRunFailedError` → structured `isError` carrying kind + logs; `tool/code-dispatch` payloads (JSON-normalized arguments identical to what dispatched); `deriveMessages()` ignoring the event; sub-call `additionalContext` suppression; HMR safety. - **e2e (with-key, self-skips)**: a real model under `mode: 'code'` composes two bash calls in one program (`examples/coding-agent/tests/code-mode.e2e.ts`) — every logged `request/header` carries exactly `[run_code]`, the dispatch events land under the parent call, the file the program wrote exists, and the final answer is the curated output. - **Snapshot (keyless replay)**: goldens for a `run_code` turn under `'code'` and `'both'` (`code-mode-turn`, `both-mode-turn`), each its own header-pinning class — the SDK section text, the collapsed header tool list, the dispatch events, and the result card are committed and replayed. ## Alternatives considered -**An add-on consumer plugin, zero core changes (the previous draft of this RFC).** Rejected on both halves. The wire-collapse half aged out from under it: it targeted the `agent/request` waterfall, which [reconstructable requests](../../implemented/architecture/2026-07-05-reconstructable-requests.md) has since re-typed to call-config-only, and the surviving alternative — transforming the assembly a waterfall listener receives — is strictly worse than contributing the right list in the first place (transformation must undo `toolOrder` canonicalization it cannot see the config for, and its correctness depends on where it sits in a listener chain). The deeper reason is ownership: which tools the model is offered, in which representation, is the registry's single concern — `schemas()` for function calling and the SDK for Code Mode are two projections of one store, and splitting the second projection into a satellite package would preserve a boundary the domain does not have. +**An add-on consumer plugin with zero core changes.** Rejected because `agent/request` is call-config-only under [reconstructable requests](../../implemented/architecture/2026-07-05-reconstructable-requests.md), while transforming an assembled tool list would have to undo `toolOrder` canonicalization without owning its config and would depend on listener order. Which tools the model is offered, and in which representation, is the registry's single concern: native schemas and the SDK are two projections of one visible store. -**`node:vm` as the reference runtime, hardening deferred (also the previous draft).** Rejected: `node:vm` is not isolation (prototype-chain escapes reach the host realm), cannot interrupt a hot loop, and forced the draft into a two-flag unsafe ceremony plus a mandatory follow-up RFC. The worker thread delivers the missing properties now — separate isolate, empty env, `resourceLimits`, reliable `terminate()` (all verified by probe before this revision) — at bash-equivalent trust, so the reference implementation and the production one are the same package and the ceremony dissolves. +**`node:vm` as the reference runtime, with hardening deferred.** Rejected: `node:vm` is not isolation (prototype-chain escapes reach the host realm) and cannot interrupt a hot loop. A worker thread provides a separate isolate, empty environment, `resourceLimits`, and reliable `terminate()` at bash-equivalent trust, so the reference and production implementation are one package without an unsafe-acknowledgement ceremony. -**Result elision / summarization over native tool-calling.** Addresses only the context-bloat half of the problem: trimming old `tool-result`s (now cheap to add as a logged surface replace, per the reconstructable-requests consequences) still pays one model round-trip per call and cannot express loops, branches, or joins. Complementary, not competing; it can layer under Code Mode for residual native calls. +**Result elision / summarization over native tool-calling.** Addresses only the context-bloat half of the problem: trimming old `tool-result`s is cheap to add as a logged surface replacement under reconstructable requests, but still pays one model round-trip per call and cannot express loops, branches, or joins. Complementary, not competing; it can layer under Code Mode for residual native calls. **Parallel native dispatch in the loop.** The other answer to round-trip cost; still valid future work (the open TODO), still blocked on concurrency-safety metadata, and still no composition — it parallelizes calls the model already decided on in one step. Code Mode's serialized-queue decision keeps the two compatible: when the metadata lands, both native parallel dispatch and per-tool binding parallelism unlock together. **Always-exclusive (Cloudflare-faithful, no mode).** Rejected for this SDK's primary consumer: a coding agent's bread-and-butter single calls (`bash`, `read`, `edit`) are already ideal as native calls, and forcing every edit through a program taxes the common case. The mode config keeps the faithful form (`'code'`) one line away without imposing it. -**Per-tool visibility tiers (this tool native, that tool code-only).** Deferred again, knowingly: it needs per-tool metadata and a presentation split that `'native' | 'code' | 'both'` does not, and every learning it depends on (how models actually split usage under `'both'`) arrives only after this ships. +**Per-tool visibility tiers (this tool native, that tool code-only).** Deferred: it needs per-tool metadata and a presentation split that `'native' | 'code' | 'both'` does not, and its design depends on evidence about how models split usage under `'both'`. **Sanitized identifier aliases in the SDK** (`my-tool` → `my_tool`, Cloudflare's approach). Rejected: quoted keys on a `declare const` make every name reachable with zero alias-collision logic; models handle `tools["my-tool"](…)` fine. diff --git a/docs/rfc/implemented/feature/2026-06-30-interception-seams.md b/docs/rfc/implemented/feature/2026-06-30-interception-seams.md index 7795b044f6..454f21df93 100644 --- a/docs/rfc/implemented/feature/2026-06-30-interception-seams.md +++ b/docs/rfc/implemented/feature/2026-06-30-interception-seams.md @@ -6,21 +6,31 @@ Status: implemented The harness needs a hooks subsystem: users extend or gate the agent at lifecycle points the way Claude Code (CC) and Codex do. The key reframe driving this design is that **"native hooks" are not a package** — a native hook is just an ordinary Cordis plugin subscribing to the canonical lifecycle events. So the real product is a *powerful, well-typed canonical event surface*; the CC/Codex bridges (the `dsh-hooks-claude` / `dsh-hooks-codex` packages) are merely translators that map an external shell-hook protocol onto that same surface. Anything a bridge can do, a plain plugin can do directly — more powerfully (no serialization boundary, full `ctx`, typed returns). -Before this change the interception surface was incomplete and inconsistent for that goal: there was no per-prompt seam (CC's `UserPromptSubmit`), no session-start signal (CC's `SessionStart`), the single `tools/execute` waterfall conflated the pre-gate and post-inspect phases (CC splits `PreToolUse`/`PostToolUse`), and `agent/turn-continuation` returned a bare `boolean` with no room for a force-continue *reason*. The [event-domain-semantics RFC](../architecture/2026-06-30-event-domain-semantics.md) pinned down the three-domain rule and the typed-Decision idiom as the interception convention; this RFC builds the actual seams on top of it. +The surface needs distinct contracts for per-prompt policy (CC's `UserPromptSubmit`), session-start observation (CC's `SessionStart`), pre-tool policy, around-dispatch control, post-tool transformation, final-result observation, and continuation with a model-facing reason. Conflating those phases gives plugins mutation channels they do not need and makes finality depend on listener ordering. The [event-domain-semantics RFC](../architecture/2026-06-30-event-domain-semantics.md) supplies the three-domain rule and the typed-Decision idiom; this RFC applies them to the lifecycle seams. ## Decision -Add/​reshape the interception seams so every one returns a small, seam-specific **typed Decision union**, and the set covers the hook points in scope (`session-start`, `prompt-submit`, `pre-tool`, `post-tool`, `stop`-via-continuation). +The canonical surface separates transformable policy, around-dispatch control, and observe-only notification. Policy waterfalls return small seam-specific **typed Decision unions**; wrappers return normalized results; notifications receive immutable snapshots and cannot affect the outcome. The set covers the hook points in scope (`session-start`, `prompt-submit`, `pre-tool`, `post-tool`, `stop`-via-continuation) while leaving non-hook execution policy independently composable. -**New `agent/*` events** (`dsh-agent`): +**Agent events** (`dsh-agent`): - `agent/session-start(agent, source)` — emit, once before turn 1, carrying a `SessionStartSource` (`startup` for a fresh/forked create, `resume` for a reloaded persisted session; `clear`/`compact` reserved). A pure notification — it CANNOT block startup (a deliberate gap: a bridge logs/injects, it does not gate startup). A listener seeds context via `agent.inject()`. - `agent/prompt-submit(agent, content, source, next) → PromptDecision` — waterfall, fired per drained queued message inside the open turn, before the `user/message` append. `allow` (optionally rewriting the prompt `content` or attaching `additionalContext`) or `block` (dropping the prompt; the loop appends a durable `prompt/blocked` in its place — see the dispatch note below). -**Reshaped** `agent/turn-continuation` from `(…, defaultDecision: boolean) → boolean` to `(…, defaultDecision: ContinuationDecision) → ContinuationDecision`. A `{action:'continue', reason?}` may carry model-facing context recorded as next-step steering in the same turn — the typed twin of the existing `/goal` step-end-steer pattern. +**`agent/turn-continuation`** receives and returns a `ContinuationDecision`. A `{action:'continue', reason?}` may carry model-facing context recorded as next-step steering in the same turn — the typed twin of the `/goal` step-end-steer pattern. -**Split** the single `tools/execute` waterfall into `tools/pre-execute` (→ `PreToolDecision` allow/deny/ask gate) and `tools/post-execute` (→ `PostToolDecision` accept/block, optionally replacing content or attaching `additionalContext`). Core dispatch sits between them as plain code inside `ToolRegistry.execute`'s outer try/catch, and the tool body keeps its own inner try/catch so a thrown tool still becomes an `isError` result that `post-execute` listeners can inspect. +### The tool pipeline gives each phase one kind of authority -**New `TurnEndReason` variant** `rejected` (`dsh-session`): a turn whose entire prompt batch was blocked by `prompt-submit`. +Every call follows one ordered pipeline: `tools/pre-execute` → monotonic guards → `tools/execute` → core dispatch → `tools/post-execute` → `tools/result`. The registry requires caller-owned `arguments` to survive lossless-JSON validation before and after cloning, then snapshots `ToolExecutionInput` into a pipeline execution with its own opaque token: identity fields and deeply frozen detached arguments are immutable for the whole pipeline, and a nested call's `parent` contains only the enclosing execution's token rather than its live object. Optional `signal` is the only operational field an around-dispatch wrapper may add, replace, or remove, and the complete object freezes before final observers run. This identity contract prevents a policy listener from silently changing what the log, UI, and tool body believe ran. + +- **`tools/pre-execute`** is the extensible waterfall gate. Its `PreToolDecision` allows, denies, or asks; deny/ask skips `tools/execute` and core dispatch but still produces a normalized result for post-policy and final observers. +- **`ctx.tools.guard()`** installs synchronous scope-aware policy after the whole pre-execute waterfall. A guard may deny or abstain, never force-allow, so listener ordering cannot resurrect an operation that a final invariant forbids. +- **`tools/execute`** is the around-dispatch waterfall for timeout, retry, and metrics plugins. A wrapper delegates to core dispatch with `next()`, may add, replace, or remove only `exec.signal` before doing so, and receives the already-normalized result of a thrown or unknown tool; returning its own valid result short-circuits dispatch. +- **`tools/post-execute`** is the inspect/transform waterfall. Its `PostToolDecision` accepts, blocks with feedback, optionally replaces content, or attaches `additionalContext`; in-place mutation of the result is not a transform channel, because the registry rebuilds the outcome from a protected snapshot plus the returned decision. +- **`tools/result`** is the awaited parallel notification after every transform, lossless-JSON validation, and the outer error boundary. It receives the same frozen execution identity and an immutable snapshot of the authoritative result; observer failures are contained per listener and cannot change or reject `ToolRegistry.execute()`'s returned outcome. + +Core dispatch and the tool body sit inside normalization boundaries, so tool, listener, malformed-result, non-JSON result, and identity-shape failures resolve as JSON-safe `isError` results rather than escaping the turn. A post-execute listener can therefore inspect a thrown tool, and a final observer sees exactly what the caller receives and the session log can persist. + +**`TurnEndReason.rejected`** (`dsh-session`): a turn whose entire prompt batch was blocked by `prompt-submit`. ### Three load-bearing loop decisions @@ -30,13 +40,13 @@ Add/​reshape the interception seams so every one returns a small, seam-specifi 3. **A forced `continue` `reason` is enqueued through the steering channel**, so the next step's top-of-loop drain records it as steering for the continued turn — next-*step* steering within the SAME turn, not a next-*turn* prompt (matching the existing `hasSteering` force-continue override). -### Pre-tool INPUT rewrite is DEFERRED (the over-reach signal) +### Pre-tool input rewrite is a separate consistency decision -`PreToolDecision` is allow/deny/ask only — **no `arguments` rewrite**. Output replacement (`PostToolDecision.accept.content`) is safe because `tool/result` is logged AFTER execution (one source of truth). Input rewrite is NOT safe today: `assistant/message` (the model-history source) and `tool/call` (the audit record) are both logged BEFORE execution, and live consumers READ `tool/call.arguments` for presentation (the ACP bridge remembers them for `presentResult`; `dsh-tool-bash` derives the title/cwd/terminal-vs-background from them). A rewrite that changed only execution would make the UI show one command while another RAN. Designing that consistently (rewriting the audit + history + presentation as one unit) is a real consistency-design problem CC itself warns is racy — so it gets its own [proposed RFC](../../proposed/feature/2026-06-30-pre-tool-input-rewrite.md), and `TODO(pre-tool-input-rewrite)` anchors it at the loop's pre-execute call site. This does not regress any production consumer (no production `tools/execute` listener mutated `exec.arguments`). The low-level capability to mutate `exec` in a `pre-execute` listener still exists (unadvertised — a test shim uses it to thread a generated id), but it is not a first-class advertised contract. +`PreToolDecision` is allow/deny/ask only — **no `arguments` rewrite**. Output replacement is safe because `tool/result` is logged after execution from the final result. Input rewrite is different: `assistant/message` (model history) and `tool/call` (the audit record) are logged before `ToolRegistry.execute()`, while ACP and tool presentation read those arguments. The registry therefore seals the cloned arguments before `tools/pre-execute`; no listener or test shim can mutate them in place. An honest rewrite must update history, audit, presentation, and execution as one unit before that identity is created, which belongs to the separate [pre-tool input-rewrite proposal](../../proposed/feature/2026-06-30-pre-tool-input-rewrite.md) and its loop-side `TODO(pre-tool-input-rewrite)`. -### What this PR does NOT do +### Boundaries -It does **not** declare `hook/*` SessionEvents (the durable hook-invocation log) — those belong to the `dsh-hook-protocol` library, because a native plugin can already use the typed Decisions without a durable hook log. A worked native-plugin example/test in this PR (`packages/core/agent-loop/tests/interception.spec.ts`) proves all the seams compose end-to-end through the REAL loop with NO `hook/*` involved — the concrete proof that "native hooks are just a plugin". Compaction (`PreCompact`/`PostCompact`), the Notification hook, Codex `PermissionRequest`, the permission/`ask` system, and the Stop loop-guard remain deferred (`FIXME(permissions)` marks the `ask`→deny degrade). +The seam package does **not** declare `hook/*` session events (the durable hook-invocation log); those belong to `dsh-hook-protocol`, because a native plugin uses typed decisions without an external hook log. The native-plugin integration test (`packages/core/agent-loop/tests/interception.spec.ts`) composes the seams through the real loop with no `hook/*` protocol. Compaction (`PreCompact`/`PostCompact`), Notification, Codex `PermissionRequest`, and the permission/`ask` interaction remain outside this decision (`FIXME(permissions)` marks the current `ask`→deny degradation). ## Alternatives considered @@ -45,4 +55,4 @@ It does **not** declare `hook/*` SessionEvents (the durable hook-invocation log) ## Consequences -The canonical interception surface is now complete and uniformly typed: a native plugin returns typed decisions directly, and a CC/Codex bridge maps its protocol fields onto the same unions. The loop gained four firing points (session-start emit, prompt-submit waterfall, the post-tool context buffer, the continuation reshape) and the `dsh-tools` registry runs a two-waterfall pipeline; both are documented in [architecture.md](../../../architecture.md) and the package READMEs, and the decision types in [core-data-structures](../../../core-data-structures/core.md#interception-decisions) + [tools.md](../../../core-data-structures/tools.md). All existing `tools/execute` and `turn-continuation` listeners (tests, docs) migrated to the new seams. The ACP bridge maps the new `rejected` reason to `cancelled` (its codec). A pure internal change with no editor-visible transcript shift for the existing scenarios — the new behavior only fires when a hook is registered — so the snapshot goldens are unchanged; a hook-driven snapshot scenario lands with the `dsh-hooks-claude` bridge, which is what makes a hook observable end-to-end through ACP. +The canonical interception surface is uniformly typed without giving every extension the same power: hooks return decisions, execution wrappers wrap, terminal guards only deny, and final observers only observe. The loop owns session-start, prompt-submit, post-tool context buffering, and continuation; `dsh-tools` owns identity sealing and the five-phase execution pipeline. Their contracts are documented in [architecture.md](../../../architecture.md), package READMEs, [core interception decisions](../../../core-data-structures/core.md#interception-decisions), and [tool structures](../../../core-data-structures/tools.md). The ACP bridge maps `rejected` turns to its `cancelled` codec value, while hook-driven snapshots verify the observable bridge behavior end to end. diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index 2f711651f6..a5f294f76d 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -36,7 +36,12 @@ A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, awai ### The foundation: structured output on the subagent seam -`agent({schema})` needs `SubagentStartRequest.outputSchema` to actually work; it was vocabulary without an implementation (`outputSchema: false` everywhere). Implemented in `dsh-subagent-inprocess` for both in-process backends: a globally registered `structured_output` capture tool whose per-child schema is enforced by a `prepend: true` `system-prompt/assemble` listener doing FINAL-ASSEMBLY enforcement (post-processing `await next()` — cooperative mutation would not survive a downstream listener returning a replacement assembly; the calling instruction rides as a trailing prompt section, since `AgentOptions` carries no per-agent prompt field, and the loop logs the result as the step's `request/header`, keeping the injection reconstructable), a `prepend: true` `agent/turn-continuation` veto after capture (no wasted extra model step) plus a `tools/pre-execute` deny for calls arriving after the capture (terminal within the step, not only at its end), and validation-retry in-turn via `ToolArgsError`. The schema is `structuredClone`d at `start()` (caller mutation cannot drift enforcement). Deliberately NO re-prompt: a child that finishes cleanly without calling the tool settles `error` to the parent. Lifetime is refcounted by backends (plugin lifetime) AND live runs (start → settle). The seam's `outputSchema` type became the raw JSON-Schema SUBSET (`StructuredOutputSchema` in dsh-tools: single-string `type`, `properties`/`required`/`additionalProperties`, `items`, scalar `enum`/`const`; anything unenforced is rejected loud) — the schema travels verbatim to the model as the forced tool's parameters, so the wire format, not the author DSL, is the right vocabulary. +`SubagentStartRequest.outputSchema` is implemented by `dsh-subagent-inprocess` for both in-process backends. Each structured child receives its own scoped capture tool, instruction, and enforcement registrations on `child.ctx`; concurrent children can use different schemas without sharing mutable policy, and disposing the child removes the entire attachment. + +- **Assembly is owner-protected.** The child registers `structured_output` with the run's real schema plus an order-190 instruction, then `systemPrompt.protect()` restores their canonical presence and definition after the complete assembly waterfall. Restored entries anchor before the first surviving later unprotected canonical neighbor, or at the end, without undoing listener ordering of unprotected entries. In native and both modes the capture tool remains a native wire tool. In pure Code Mode its canonical native presence is absent, so protection removes injected copies while the scoped tool remains in the generated SDK; the Code Mode owner independently protects `tools:sdk` and the reserved `run_code` transport. The loop logs the final assembly as `request/header`, keeping the demand reconstructable. +- **Capture uses a two-level commit.** The capture body validates and stages a cloned value in a `WeakMap` keyed by that immutable execution object; only the observe-only `tools/result` notification commits it when the authoritative JSON-safe result after pre-policy, guards, around dispatch, post-policy, and outer error normalization succeeds. A capture called from a `run_code` program carries only the enclosing execution's opaque token as `parent`: inner success becomes pending, and commits when that token matches the enclosing transport's own successful `tools/result`. An outer runtime failure or post-policy block therefore cannot report structured success, and the observer never receives a live outer execution reference. +- **Finality is monotonic within and after the step.** A scoped `ctx.tools.guard()` denies calls after capture has become pending or committed, and it runs after the entire extensible `tools/pre-execute` waterfall so listener order cannot force-allow a later side effect. After the step, scoped serial `agent/turn-stop` runs after ordinary continuation and steering folding; a captured child stops with no extra model step, and neither a continuation wrapper nor late steering can resurrect it. +- **Schema and failure behavior stay explicit.** `start()` clones the schema so caller mutation cannot drift enforcement. `ToolArgsError` keeps validation retry inside the same turn. A child that finishes cleanly without a committed capture settles `error` to the parent; there is no re-prompt loop. `StructuredOutputSchema` is the raw enforceable JSON-Schema subset in `dsh-tools` (single-string `type`, `properties`/`required`/`additionalProperties`, `items`, scalar `enum`/`const`), and unsupported keywords fail loudly because that wire data becomes the capture tool's parameters verbatim. ## Deferred (documented non-goals of this cut) @@ -51,11 +56,11 @@ A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, awai ## Alternatives considered -- **Hostile-value containment in the host** (trap-free proxy rejection, accessor-never-invoked descriptor walks, realm-side pre-rendering of thrown values, realm-built promises/arrays/error clones with structural fatal recognition): an earlier revision built all of it, and review showed the cost was real while the threat model was not — every one of those defenses guards against an author the premise already trusts. Removed in favor of the plain boundary above; the thread boundary makes such machinery redundant anyway (serialization by construction). -- **In-process `node:vm` execution** (the first cut of this RFC shipped it): mechanically simplest — no RPC, no thread — but `start()` blocks the caller for the script's initial synchronous slice, a synchronous spin past the first await cannot be killed in-process (the vm `timeout` covers only that first slice), and `dispose()` could only ABANDON an unsettling script, leaving the spin on the host loop. Superseded by the worker-thread engine, which keeps the same vm-context script surface while unblocking the host and making termination real. +- **Hostile-value containment in the host** (trap-free proxy rejection, accessor-never-invoked descriptor walks, realm-side pre-rendering of thrown values, realm-built promises/arrays/error clones with structural fatal recognition): rejected because every defense targets an author the trust premise accepts, while the thread's serialization boundary already makes cross-realm values total by construction. +- **In-process `node:vm` execution**: mechanically simplest — no RPC, no thread — but `start()` blocks the caller for the script's initial synchronous slice, a synchronous spin past the first await cannot be killed in-process (the vm `timeout` covers only that first slice), and `dispose()` could only abandon an unsettling script on the host loop. The worker-thread engine keeps the same vm-context script surface while unblocking the host and making termination real. - **Background execution as the default** (CC's shape): deferred; foreground-synchronous matches `dsh-tool-subagent`'s cut, and background semantics should be designed ONCE across bash/subagent/workflow rather than per-tool. - **Workflow-layer JSON parsing for `agent({schema})`**: duplicating a seam concern at one consumer while the seam's capability flag stayed dishonestly `false`. -- **Meta embedded in the script as `export const meta = {...}`** (CC's exact format; the first cut shipped it): keeps scripts self-contained and CC scripts drop-in, but obtaining meta means evaluating model-written text on the HOST — the shipped extractor ran the literal in an empty timed vm context, yet reading the RESULT still executed script-controlled getters on the host stack outside any timeout, re-opening the host-spin hole the worker thread exists to close. A JSON parameter deletes the scanner, the evaluation, and the hole outright; the cost is that a CC script's meta header must move into the parameter (the body stays drop-in). +- **Meta embedded in the script as `export const meta = {...}`** (CC's exact format): keeps scripts self-contained and CC scripts drop-in, but obtaining meta requires evaluating model-written text on the host. Even an empty timed vm context cannot bound script-controlled getters when the host reads the resulting object. A JSON parameter removes the scanner, evaluation, and host-spin hole; the cost is that a CC script's meta header must move into the parameter (the body stays drop-in). - **`SchemaSpec` as the outputSchema type**: the author-facing DSL cannot express what arrives as data and cannot be validated against without conversion loss. - **A schema-object library (zod, or the repo's schemastery) for the structured-output subset**: the schema is wire data — plain JSON that crosses the vm realm boundary in `agent({schema})` and lands verbatim in the forced tool's parameters — exactly where live schema objects cannot sit; consuming raw JSON Schema at runtime would need a third-party converter on top (zod core only emits JSON Schema, not the reverse), and it would put a second schema language beside schemastery's config role. - **ajv for value validation**: it validates FULL JSON Schema, so the subset gate — the module's actual point, since every accepted keyword must be one the harness enforces — would remain hand-written regardless; it compiles validators through `new Function`; and it would be dsh-tools' first runtime dependency, all to replace the ~70-line value walker while the path-qualified, every-violation error reporting stays custom either way. @@ -63,4 +68,4 @@ A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, awai ## Consequences -The harness gains CC-compatible script orchestration: fan-out plans live in a rerunnable artifact instead of the parent context, and the structured-output half of the subagent seam is now real (the vocabulary stopped lying about `outputSchema`). What it cost, all bounded by the trust premise: a worker thread per run (~tens-of-ms spin-up), every hook crossing a message port as RPC, and a termination-path `agentsStarted` that degrades to the host-observed count; in exchange `start()` never blocks the host, a post-cancel grace ends in a real `worker.terminate()`, and the value boundary is serialization by construction. A worker thread is still NOT a security boundary — scripts share the model's trust level, and actual sandboxing names its exit (the isolated-vm/separate-process engine swap behind the seam). The fatal-vs-null strictness divergence from CC means a CC-authored script that RELIES on option typos dissolving to `null` behaves differently here — judged worth it to keep the repo's no-accepted-then-ignored rule. Consumers must hold the run handle for control (`cancel`/`dispose`); observers get data snapshots only, so no listener can extend a run's lifetime or corrupt another's view. +The harness gains CC-compatible script orchestration: fan-out plans live in a rerunnable artifact instead of the parent context, and `outputSchema` yields an authoritative structured child result across native and Code Mode presentation. The cost, bounded by the trust premise, is a worker thread per run (~tens-of-ms spin-up), every hook crossing a message port as RPC, and a termination-path `agentsStarted` that degrades to the host-observed count; in exchange `start()` never blocks the host, a post-cancel grace ends in a real `worker.terminate()`, and the value boundary is serialization by construction. A worker thread is still not a security boundary — scripts share the model's trust level, and actual sandboxing requires an isolated-vm/separate-process engine behind the seam. The fatal-vs-null strictness divergence from CC means a CC-authored script that relies on option typos dissolving to `null` behaves differently, preserving the repo's no-accepted-then-ignored rule. Consumers must hold the run handle for control (`cancel`/`dispose`); observers get data snapshots only, so no listener can extend a run's lifetime or corrupt another's view. diff --git a/docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md b/docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md index c321c56d53..6c7cbaa5ed 100644 --- a/docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md +++ b/docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md @@ -14,7 +14,7 @@ This RFC has a hard prerequisite on [session persistence](../../implemented/arch ## Proposal -A new plugin package `@deepseek-ai/dsh-acp` — a client-driver / UI plugin, the structured analogue of `stdio-chat`. It is NOT a change to the loop and NOT an [capability seams](../../implemented/architecture/2026-06-13-capability-seams.md) interface/implementation/consumer capability split; it consumes the existing `agent/*` event taxonomy and the `tools/pre-execute`/`tools/post-execute` waterfalls. +A new plugin package `@deepseek-ai/dsh-acp` — a client-driver / UI plugin, the structured analogue of `stdio-chat`. It is NOT a change to the loop and NOT a [capability seams](../../implemented/architecture/2026-06-13-capability-seams.md) interface/implementation/consumer capability split; it consumes the existing `agent/*` event taxonomy and the tool registry's guarded pre/around/post/final-result pipeline. It depends on the official `@agentclientprotocol/sdk` (the `AgentSideConnection` class) — Apache-2.0, actively versioned. The SDK declares a `zod` peer dependency and imports `zod/v4` at runtime, so `packages/ui/acp` must declare `zod` itself (per the workspace dependency constraints). This is the renamed successor to `@zed-industries/agent-client-protocol`, which is now deprecated on npm. diff --git a/docs/rfc/proposed/feature/2026-06-30-pre-tool-input-rewrite.md b/docs/rfc/proposed/feature/2026-06-30-pre-tool-input-rewrite.md index b3e6ab3cd7..9657512082 100644 --- a/docs/rfc/proposed/feature/2026-06-30-pre-tool-input-rewrite.md +++ b/docs/rfc/proposed/feature/2026-06-30-pre-tool-input-rewrite.md @@ -4,7 +4,7 @@ Status: proposed ## Problem -The [interception-seams RFC](../../implemented/feature/2026-06-30-interception-seams.md) added `tools/pre-execute` returning a `PreToolDecision` (allow/deny/ask) — but deliberately NOT input rewrite (a hook changing a tool call's `arguments` before it runs). Claude Code's `PreToolUse` hook offers an `updatedInput`, so a faithful CC bridge wants the same. This RFC designs that, separately, because doing it consistently is a real problem — not a field to bolt onto the allow decision. +The [interception-seams RFC](../../implemented/feature/2026-06-30-interception-seams.md) defines `tools/pre-execute` as an allow/deny/ask gate over an execution whose identity is already protected and whose arguments are deeply frozen. Claude Code's `PreToolUse` hook also offers `updatedInput`, so a faithful bridge needs an explicit rewrite mechanism. A rewrite cannot be a mutation escape hatch on the existing execution object: it must keep the durable history, audit record, presentation, and executed value consistent. ## The problem: three readers of pre-execution arguments @@ -14,37 +14,38 @@ In the loop, a tool call's arguments are committed to the log and read by live c 2. **`tool/call`** is the durable AUDIT record, appended before `ctx.tools.execute()`. 3. **Live presentation reads `tool/call.arguments`**: the ACP bridge remembers them and passes them to `presentResult`; `dsh-tool-bash` derives the card title, the rawInput, the cwd, and the terminal-vs-background treatment from them. -So an "input rewrite" that changes ONLY what executes would make the UI show one command while another RAN, and render result state against the wrong arguments — a real inconsistency, not a documentable gap. (The existing low-level capability to mutate `exec.arguments` in a listener has exactly this latent inconsistency; it is unadvertised precisely because of this — yet not unused: a tool-bash integration test rewrites a scripted call's arguments through it (`packages/bash/tool-bash/tests/integration.spec.ts`), so this design must either sanction that path with the consistency unit below or seal it — `readonly` arguments at the seam, with the test shim moved onto a behavior-level helper.) +An execution-only rewrite would make the UI show one command while another ran and render the result against the wrong arguments. The registry prevents that failure mode today: it structured-clones and deep-freezes `arguments`, makes the execution identity properties non-writable, and exposes no test shim or listener path that can replace them. The rewrite design must preserve that protected-identity boundary rather than weaken it. ## Proposal -A sketch, to validate against the code when built. Treat input rewrite as a consistency unit: when a `pre-execute` hook supplies `updatedInput`, the rewrite must be reflected in ALL three readers, atomically, before execution: +A rewrite is a pre-identity consistency transaction. When a hook supplies `updatedInput`, the effective value must be chosen before the registry constructs its immutable `ToolExecution`, and it must be reflected in all three readers atomically: - The `tool/call` audit event records the REWRITTEN arguments (with the original retained in a sidecar field for the audit trail — a hook changed the call, and both the original and the effective arguments are facts worth keeping). - The `assistant/message` in derived history must agree with what executed — options to evaluate: rewrite the assistant message's tool-call block in place (changes what the model "sees it said"), or record a separate correction the next request carries. The CC model is that the model sees the rewrite took effect. - Presentation (`presentCall`/`presentResult`) reads the rewritten arguments, so the UI shows what actually ran. -The shape would extend `PreToolDecision` with an allow-variant `arguments` (or a dedicated `{kind:'rewrite', arguments}`), and the loop would thread the rewrite through the three readers above rather than only into `ctx.tools.execute()`. +Extending `PreToolDecision` at its current firing point is insufficient: both durable records already exist by then, and the execution identity is protected. The implementation must either move the relevant decision before the log commit or add a dedicated earlier rewrite decision over the pending model call. After the loop commits the effective arguments to history and audit, it constructs the ordinary immutable execution and runs the existing allow/deny/ask and tool pipeline unchanged. ## Alternatives considered -### Why not now +### Why not mutate the execution object? -The interception-seams RFC notes input rewrite "fought the code across two review rounds" — the signal AGENTS.md names for an over-reaching change. Shipping allow/deny/ask first keeps the seam honest (no advertised contract that silently desyncs the UI), and a CC/Codex bridge that receives an `updatedInput` logs it and surfaces a faithful-but-degraded warning (like `ask`→deny) until this lands. This RFC is the home for the consistent design; `TODO(pre-tool-input-rewrite)` in the loop's pre-execute call site anchors it. +Allowing a pre-execute listener to assign `exec.arguments` would provide only an execution rewrite, leaving model history, audit, and presentation unchanged. Keeping the identity protected makes such partial behavior unrepresentable. Until the consistency transaction exists, a CC/Codex bridge logs and warns about `updatedInput` rather than claiming it was honored; `TODO(pre-tool-input-rewrite)` at the loop dispatch site anchors the missing earlier phase. ## Acceptance criteria -- A `pre-execute` rewrite is reflected in all three readers atomically before execution: the `tool/call` audit records the rewritten arguments (the original retained in a sidecar field), derived history agrees with what executed, and presentation renders the rewritten arguments. -- The unadvertised `exec.arguments` mutation path is either sanctioned by this consistency unit or sealed (`readonly` arguments at the seam, the test shim moved onto a behavior-level helper). +- A requested rewrite is resolved before `ToolExecution` identity is created and reflected in all three readers atomically: the `tool/call` audit records the rewritten arguments (the original retained in a sidecar field), derived history agrees with what executed, and presentation renders the rewritten arguments. +- The effective `ToolExecution.arguments` remains deeply frozen and non-writable throughout pre-policy, guards, dispatch, post-policy, and final observation; no mutation shim is introduced. - The CC/Codex bridges honor `updatedInput` instead of logging the faithful-but-degraded warning. ## Risks - Rewriting the `assistant/message` tool-call block changes what the model "sees it said"; whether any provider rejects that on replay is the open question that must be settled empirically before the decision shape freezes. -- Until this lands, the unadvertised mutation path keeps its latent UI-desync inconsistency. +- An earlier rewrite phase changes the ordering relationship among `assistant/message`, `tool/call`, hook audit events, and execution; the design must pin that ordering without weakening turn enclosure or call/result adjacency. ## Open questions - Does rewriting the `assistant/message` tool-call block corrupt any provider's expectation on replay, or is a separate correction safer? - Should the original arguments be preserved on the `tool/call` event (audit) and, if so, under what field? +- Does the rewrite decision move before the log commit or become a dedicated earlier seam, and how do existing pre-tool allow/deny hooks avoid running twice? - How does this interact with a future permission `ask` flow (a user approving a rewritten call)? diff --git a/docs/rfc/proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md b/docs/rfc/proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md index a6f932b1ed..c6bfbe967c 100644 --- a/docs/rfc/proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md +++ b/docs/rfc/proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md @@ -8,13 +8,13 @@ Three pieces of public spine surface share one defect class: their only possible 1. **`SurfaceManager.invalidate()`** (`packages/core/session/src/surface.ts`). Its documented trigger — "the log has been replaced wholesale (e.g. after Session seed)" — is structurally unreachable: seeding happens inside the `Session` constructor, `_surface` is created lazily on first access, and the log reference is never reassigned afterward, so no constructed `SurfaceManager` ever observes a wholesale replacement. Sole caller: its own unit test. A rollback primitive protecting a scenario the implementation cannot produce. 2. **The `runLoop`, `Inbox`, and `InboxMessage` exports** (`packages/core/agent-loop/src/index.ts`). `runLoop` has no importer outside the package — the only callers are the package's own internals (the agent constructs its loop with it), so the public re-export has zero consumers; `Inbox`/`InboxMessage` likewise reach outside code only through the package's own inbox spec (switchable to the source module). The exports contradict the package's own docs — the inbox module doc says the public surface is `Agent.send()`/`Agent.steer()` — and the [architecture dependency rule](../../../architecture.md): nothing programs against `dsh-agent-loop`; a replacement loop is a different bundle built on `dsh-agent`, not a consumer of this package's internals. `ReactLoopAgent` stays exported (cross-package tests construct it by package name). -3. **`ToolExecutionResult.callId`** (`packages/core/tools/src/index.ts`; the *input* `ToolExecution.callId` stays). Zero readers — and no listener can even construct a result: `tools/pre-execute`/`tools/post-execute` listeners return Decisions, the registry builds every result itself and always sets `callId` to the input `exec.callId`, and the post-execute dispatch snapshots the outcome before the waterfall precisely so a listener mutating the shared result reference cannot corrupt the id. The loop independently ignores `result.callId` in favor of its own `call.id`, and two regression tests exist solely to prove the field cannot matter (the loop's ignores-result-callId test and the registry's mutation guard). A field that is by construction a copy of its input, defended by snapshot machinery, and pinned by tests proving it is ignored is pure liability surface; the ACP bridge correlates via the session event's `data.callId`, never via the execution result. +3. **`ToolExecutionResult.callId`** (`packages/core/tools/src/index.ts`; the input `ToolExecution.callId` stays). Zero consumers read it. A `tools/execute` wrapper may construct or replace a result, but the registry rejects any `callId` that differs from the immutable execution identity and rebuilds later outcomes from protected snapshots; `tools/post-execute` receives that same execution beside the result, and the observe-only `tools/result` notification receives both as immutable values. The loop independently correlates with its model call's `call.id`, while ACP correlates through the session event's `data.callId`. The result field is therefore a compulsory copy of information already present at every extension point, plus validation and regression tests whose only job is to prove the copy cannot disagree. ## Proposal -Delete the method and its test; delete the three export lines and their `packages/core/agent-loop/README.md` rows, pointing the inbox spec at the source module; drop the result field from the type, the registry's construction sites (the deny result, the dispatch result, `toolErrorResult`, and the post-execute snapshot's `callId` leg), the loop's ignore-comment, the proves-ignored regression test, and the mutation guard's `callId` assertions — the hazard they all pin disappears with the field, while the result's `additionalContext` ferry (a consumed post-execute channel) stays untouched. Update the `ToolExecutionResult` paste in [tools.md](../../../core-data-structures/tools.md) (and its `scripts/type-equiv.manifest.json` row) and the result-shape row in `packages/core/tools/README.md`; for the `invalidate()` removal, amend the [session-surface RFC](../../implemented/architecture/2026-06-18-session-surface.md)'s full-rebuild-after-wholesale-replacement sentence per [implemented/AGENTS.md](../../implemented/AGENTS.md). +Delete the method and its test; delete the three export lines and their `packages/core/agent-loop/README.md` rows, pointing the inbox spec at the source module; drop the result field from the type, the registry's construction sites (deny, dispatch, `toolErrorResult`, post-execute snapshots), its around-wrapper mismatch validation, the loop's ignore-comment, and the tests that prove the duplicate id cannot matter. The result's consumed `additionalContext` ferry and the execution object's authoritative `callId` stay untouched. Update the `ToolExecutionResult` paste in [tools.md](../../../core-data-structures/tools.md) (and its `scripts/type-equiv.manifest.json` row) and the result-shape row in `packages/core/tools/README.md`; for the `invalidate()` removal, amend the [session-surface RFC](../../implemented/architecture/2026-06-18-session-surface.md)'s full-rebuild-after-wholesale-replacement sentence per [implemented/AGENTS.md](../../implemented/AGENTS.md). -Sequencing: the in-flight surface-cache work (tool-pairing balance caching) neither uses nor touches `invalidate`, so that removal lands after or alongside it mechanically. The execute pipeline is `tools/pre-execute` → dispatch → `tools/post-execute`, and post-execute listeners receive the execution object alongside the result — nothing needs the result's own id. +Sequencing: the surface-cache work (tool-pairing balance caching) neither uses nor touches `invalidate`, so that removal can land after or alongside it mechanically. The full execution pipeline carries the immutable execution object through pre-policy, guards, around-dispatch wrappers, post-policy, and final result observation; nothing needs the result to repeat its id. ## Alternatives considered @@ -25,7 +25,7 @@ A future consumer that swaps a session's log in place would want a reset primiti ## Acceptance criteria - `invalidate()` and the result `callId` appear only in this RFC; `runLoop`/`Inbox`/`InboxMessage` remain package-internal only — no re-export from the package index and no outside-package importer; the agent-loop README lists only the consumed public surface; the inbox spec imports the source module. -- The pre-/post-execute pipeline contract tests pass with the shrunk result type; the mutation-guard and proves-ignored tests shed their `callId` legs with the hazard they pin. +- The complete tool-pipeline contract tests pass with the shrunk result type; the around-wrapper mismatch test, mutation-guard id assertions, and proves-ignored loop test disappear with the duplicate field. ## Risks diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md index 6d97017f1d..04ac0b9d26 100644 --- a/docs/tool-catalog.md +++ b/docs/tool-catalog.md @@ -16,7 +16,7 @@ This table connects model-visible tool names to the plugin package and service s | Tool package | Model-visible names | Requires | Writes / affects | Shipped aliases | Deployment note | | --- | --- | --- | --- | --- | --- | | `@deepseek-ai/dsh-tool-ask-user` | `ask_user_question` | `ctx.tools`, `ctx.userInteraction` | `tool/call`, `tool/result after a UI/provider answers the question` | - | ask_user_question pauses the tool call until the active UI provider returns a human answer. | -| `@deepseek-ai/dsh-tools` | `run_code` | `ctx.tools`, `ctx.codeRuntime (execution time)`, `ctx.systemPrompt` | `tool/call`, `one tool/code-dispatch per bridged sub-call`, `tool/result` | - | Registered by the tool registry itself under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the ONLY wire tool; the other registered tools are declared to the model as a generated TypeScript SDK prompt section instead, and a program calls them through port-bridged bindings that dispatch through the ordinary tools/pre-execute → tools/post-execute pipeline, one at a time. | +| `@deepseek-ai/dsh-tools` | `run_code` | `ctx.tools`, `ctx.codeRuntime (execution time)`, `ctx.systemPrompt` | `tool/call`, `one tool/code-dispatch per bridged sub-call`, `tool/result` | - | Owned by the tool registry as a reserved transport outside filterable capability layers under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the registry's only canonical wire contribution; the other visible capabilities are declared in a protected TypeScript SDK section, and a program calls them through serialized bindings that re-enter the complete guarded tool pipeline and link each nested execution to this outer result. | | `@deepseek-ai/dsh-tool-bash` | `bash`, `bash_kill`, `bash_output` | `ctx.tools`, `ctx.bash` | `tool/call`, `tool/result`, `context/message via agent.inject() for background completion notices` | - | The bash/bash_output/bash_kill tools are model-facing consumers of the bash executor seam. | | `@deepseek-ai/dsh-tool-cordis` | `cordis_inspect`, `cordis_mount`, `cordis_unmount` | `ctx.tools` | `tool/call`, `tool/result`, `live plugin-tree mutations (mount/unmount)` | - | Ships in examples/cordis-agent only (a deliberate opt-in — mounted code gets the real ctx, see docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md). Plugins the model mounts may register ADDITIONAL model-visible tools at runtime; the request-header ToolsDelta logs those tool-set changes. | | `@deepseek-ai/dsh-tool-fs` | `edit`, `read`, `write` | `ctx.tools`, `ctx.fs`, `ctx.systemPrompt` | `tool/call`, `fs/write-intent or fs/edit-intent for mutations`, `fs/observed after successful file operations`, `tool/result` | - | The read-before-write/edit policy is added by `@deepseek-ai/dsh-fs-policy` (an `fs/*` event-gate plugin, no schema change); a deployment that loads these tools is expected to also load it. The tool schemas above are identical with or without the policy plugin. | @@ -118,7 +118,7 @@ Execute a TypeScript program against the available tools. Write the BODY of an a Source: [`packages/core/tools/src/code-mode.ts`](../packages/core/tools/src/code-mode.ts) -Registered by the tool registry itself under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the ONLY wire tool; the other registered tools are declared to the model as a generated TypeScript SDK prompt section instead, and a program calls them through port-bridged bindings that dispatch through the ordinary tools/pre-execute → tools/post-execute pipeline, one at a time. +Owned by the tool registry as a reserved transport outside filterable capability layers under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the registry's only canonical wire contribution; the other visible capabilities are declared in a protected TypeScript SDK section, and a program calls them through serialized bindings that re-enter the complete guarded tool pipeline and link each nested execution to this outer result. ## `@deepseek-ai/dsh-tool-bash` diff --git a/docs/tool-execution-pipeline.md b/docs/tool-execution-pipeline.md index 09a863badc..ef6715dccb 100644 --- a/docs/tool-execution-pipeline.md +++ b/docs/tool-execution-pipeline.md @@ -3,7 +3,7 @@ # Tool Execution Pipeline -This graph shows where policy, hooks, sandboxing, filesystem guards, result rewriting, and UI rendering fit without changing the loop. The key extension points are the `tools/pre-execute`, `tools/execute`, and `tools/post-execute` waterfalls. +This graph shows where policy, hooks, sandboxing, filesystem guards, result rewriting, final-outcome observation, and UI rendering fit without changing the loop. The transformable extension points are the `tools/pre-execute`, `tools/execute`, and `tools/post-execute` waterfalls; monotonic guards and `tools/result` are the owner-enforced boundaries around them. ```mermaid flowchart TD @@ -11,19 +11,24 @@ flowchart TD toolCall["Session event: tool/call
logged before execution"] presentCall["UI pending card
presentCall(args)"] pre["tools/pre-execute waterfall
hooks, permission, sandbox"] + guards["Registered monotonic guards
deny or abstain; identity protected"] denied["deny or ask
tool body skipped"] around["tools/execute waterfall
timeout, retry, metrics (around dispatch)"] toolBody["Registered tool execute() body"] fsGate["fs/write-intent or fs/edit-intent
tool-fs mutations only"] owned["Tool-owned session events
todo/write, fs/observed, hook/invoked, hook/result, tool/code-dispatch"] post["tools/post-execute waterfall
accept, block, replace, add context"] + final["tools/result parallel notification
frozen authoritative outcome"] context["Buffered additionalContext
context/message after all tool results"] toolResult["Session event: tool/result
single model-facing outcome"] + allResults["All calls in the step settled
and tool/result events recorded"] presentResult["UI completed card
presentResult(args, result)"] model --> toolCall toolCall --> presentCall toolCall --> pre - pre -->|allow| around + pre -->|allow| guards + guards -->|allow| around + guards -->|deny| denied around --> toolBody pre -->|deny or ask| denied denied --> post @@ -32,11 +37,13 @@ flowchart TD toolBody --> owned toolBody --> around around --> post - post --> context - post --> toolResult + post --> final + final --> toolResult toolResult --> presentResult + toolResult --> allResults + allResults --> context ``` -Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate; hook bridges and future permission prompts live on the generic pre/post tool waterfalls; and around-dispatch concerns like the tool-call timeout policy (`@deepseek-ai/dsh-timeout-policy`) wrap core dispatch on `tools/execute`. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service. Code Mode rides the same pipeline twice over: `run_code` is itself a registered tool body, and each tool call its program makes re-enters `ctx.tools.execute()` through BOTH waterfalls — serialized one at a time, logged as a `tool/code-dispatch` session event, with a deny surfacing to the program as a binding rejection (a sub-call's `additionalContext` is deliberately dropped — no safe outlet mid-run preserves call/result adjacency). +Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate; hook bridges and future permission prompts live on the generic pre/post tool waterfalls; owner policy that must not be reordered uses registered guards; and around-dispatch concerns like the tool-call timeout policy (`@deepseek-ai/dsh-timeout-policy`) wrap core dispatch on `tools/execute`. The awaited `tools/result` notification observes the immutable final outcome after every transform, lossless-JSON validation, and outer error normalization. That split lets the same hooks observe bash, fs, web, todo, and subagent calls without coupling those tools to one policy service. Code Mode rides the whole pipeline twice over: `run_code` is the reserved registry-owned transport whose body enters the pipeline, and each tool call its program makes re-enters `ctx.tools.execute()` — serialized one at a time, carrying the outer execution's opaque token for correlation, and logged as a `tool/code-dispatch` session event, with a deny surfacing to the program as a binding rejection (a sub-call's `additionalContext` is deliberately dropped — no safe outlet mid-run preserves call/result adjacency). Maintenance mode: curated Mermaid flow; exact tool schemas and event signatures live in generated catalogs. diff --git a/examples/README.md b/examples/README.md index e8a41a366b..f500f25e9e 100644 --- a/examples/README.md +++ b/examples/README.md @@ -19,7 +19,7 @@ A REPL agent demo: DeepSeek V4 + the `read`/`write`/`edit` filesystem tools + th Run with: `pnpm run demo:repl` (needs `DEEPSEEK_API_KEY` in the environment or a gitignored repo-root `.env`). See [coding-agent/README.md](coding-agent/README.md) for details. -Its `code-mode.cordis.yml` overlay flips the same tree to **Code Mode**: the worker-thread code runtime is loaded and the tool registry runs `mode: code`, so the model gets exactly one wire tool — `run_code` — plus a generated TypeScript SDK section, and composes the other tools by writing a program whose output it curates. Run with: `pnpm run demo:code-mode` (the REPL is the default UI; `acp` as the argument serves the acp-agent example's same-shaped overlay instead) — see the [Code Mode section](coding-agent/README.md#code-mode) for what to try. +Its `code-mode.cordis.yml` overlay flips the same tree to **Code Mode**: the worker-thread code runtime is loaded and the tool registry runs `mode: code`, so its canonical wire contribution is the protected `run_code` transport plus a protected generated TypeScript SDK section, and the model composes the other tools by writing a program whose output it curates. Run with: `pnpm run demo:code-mode` (the REPL is the default UI; `acp` as the argument serves the acp-agent example's same-shaped overlay instead) — see the [Code Mode section](coding-agent/README.md#code-mode) for what to try. ## cordis-agent diff --git a/examples/coding-agent/README.md b/examples/coding-agent/README.md index 7731aa8f09..37a43481e5 100644 --- a/examples/coding-agent/README.md +++ b/examples/coding-agent/README.md @@ -33,7 +33,7 @@ The id is wired through `cordis.yml` (`resumeSessionId: !!js process.env.RESUME_ ## Code Mode -[`code-mode.cordis.yml`](code-mode.cordis.yml) is this same tree flipped to [Code Mode](../../docs/rfc/implemented/feature/2026-06-15-code-mode.md): an include overlay over `./cordis.yml` whose two patches insert the worker-thread code runtime (`@deepseek-ai/dsh-code-runtime-worker`, registering `ctx.codeRuntime`) and set `tools: { mode: code }` on the app. The model is then offered exactly ONE wire tool — `run_code` — plus a generated TypeScript SDK section declaring every other registered tool; it composes them by writing a program, each program tool call bridges back through the ordinary `tools/pre-execute`/`post-execute` pipeline one at a time and is logged as a `tool/code-dispatch` session event, and ONLY what the program prints or returns re-enters its context. (Flip the mode to `both` to offer native calls AND `run_code` side by side.) +[`code-mode.cordis.yml`](code-mode.cordis.yml) is this same tree flipped to [Code Mode](../../docs/rfc/implemented/feature/2026-06-15-code-mode.md): an include overlay over `./cordis.yml` whose two patches insert the worker-thread code runtime (`@deepseek-ai/dsh-code-runtime-worker`, registering `ctx.codeRuntime`) and set `tools: { mode: code }` on the app. The registry contributes exactly one protected wire transport — reserved `run_code` — plus a protected TypeScript SDK section declaring the visible end-capability tools. The model composes those capabilities by writing a program; each program call carries an immutable link to its enclosing transport, bridges back through pre-policy, monotonic guards, around dispatch, post-policy, and final-result observation one at a time, and is logged as a `tool/code-dispatch` session event. Only what the program prints or returns re-enters model context. (Flip the mode to `both` to offer native calls and `run_code` side by side.) ```sh pnpm run demo:code-mode # this overlay under the REPL (default UI) diff --git a/packages/core/README.md b/packages/core/README.md index 4e61293034..fa6ffc5a5a 100644 --- a/packages/core/README.md +++ b/packages/core/README.md @@ -7,7 +7,7 @@ The packages every harness build is assembled from: the session log, the system- | `scope/` | Scoped-context registration primitive (scope tags, scope-filtered dispatch) | (library — no ctx key) | | `session/` | Event-sourced session log + in-memory store | `ctx.sessions` | | `system-prompt/` | Prompt-section + tool-schema assembly registry | `ctx.systemPrompt` | -| `tools/` | Tool registry + `tools/pre-execute`/`tools/post-execute` pipeline | `ctx.tools` | +| `tools/` | Scoped tool registry + pre-policy, guards, around-dispatch, post-policy, and final-result observation | `ctx.tools` | | `agent/` | Agent interface, registry, `agent/*` event vocabulary | `ctx.agents` | | `agent-loop/` | The concrete loop plugin: `ReactLoopAgent` + the loop driver | `ctx.agentLoop` | | `agent-core/` | Bundle plugin: the providerless/executor-less/UI-less spine as code | (loads the spine) | diff --git a/packages/core/agent-core/README.md b/packages/core/agent-core/README.md index 3f2ff08c0e..6753472005 100644 --- a/packages/core/agent-core/README.md +++ b/packages/core/agent-core/README.md @@ -13,7 +13,7 @@ This is the package to read to see **the whole plugin tree at once** — the tea @deepseek-ai/dsh-llm abstract LLM service + content-block vocabulary @deepseek-ai/dsh-session event-sourced session log + store @deepseek-ai/dsh-system-prompt prompt-section + tool-schema assembly -@deepseek-ai/dsh-tools tool registry + tools/pre-execute/post-execute +@deepseek-ai/dsh-tools registry + guarded pre/around/post/final-result pipeline @deepseek-ai/dsh-agent agent registry + agent/* event vocabulary @deepseek-ai/dsh-invariants dev-mode event-contract assertions @deepseek-ai/dsh-tool-bash the model-facing bash/bash_output/bash_kill schemas diff --git a/packages/core/agent-loop/README.md b/packages/core/agent-loop/README.md index b5eb717dc8..a9fd8376f7 100644 --- a/packages/core/agent-loop/README.md +++ b/packages/core/agent-loop/README.md @@ -8,14 +8,14 @@ This is the only package in the harness that contains concrete loop logic. Every ### Public API -Lifecycle (scoped): the composite creation effect mints the agent's scope (`agent.ctx`), enters the session through it (the session's dispatch carrier), registers the agent, runs `CreateAgentOptions.setup`, emits `agent/session-start`, then starts the loop; teardown runs stop/drain → unregister → detach session → unwind scope, keeping store/registry rollback synchronous on every failure path. All `agent/*` dispatches go through `agentEvents(ctx, agent)`; per-step assembly through `assembleContextFor(agent)`; the turn-end durability checkpoint through `ctx.sessions.flush(session)`. +Lifecycle (scoped): programmatic creation and resume snapshot caller-owned identity/configuration data, reserve both IDs, mint `agent.ctx`, and install the ordered teardown skeleton before awaiting optional `setup`. Resume installs an owner-liveness sentinel before persistence load, then hands ownership directly to the full lifecycle. After setup resolves, the factory checks its lifecycle flag, owner-fiber state, and owning agent status around one microtask checkpoint so a same-turn Cordis unload wins before publication. Successful setup inserts both session and agent before announcing either, enables driving immediately before `agent/session-start`, then starts the loop. Setup calls to `send`/`steer`/`inject`/`cancel` reject structurally; load/setup rejection or owner unload publishes nothing. Teardown runs stop/drain → unregister → detach session → unwind scope. All `agent/*` dispatches go through `agentEvents(ctx, agent)`; per-step assembly through `assembleContextFor(agent)`; the turn-end durability checkpoint through `ctx.sessions.flush(session)`. - `ctx.agentLoop.create(id: string, options?: AgentOptions): ReactLoopAgent` — config-driven create: an agent on a fresh per-run session id `${id}-session-` (no cwd). Used for `cordis.yml`-configured agents. The per-run uuid avoids colliding with the on-disk log a prior run materialized once a durable persistence backend is loaded; each run is a new session (a deliberate demo simplification — a real resume-or-create policy is a TODO). Disposed with the calling fiber. `AgentLoop` also implements the `AgentFactory` seam and registers itself via `ctx.agents.setFactory(this)`, so plugins create/resume agents through `ctx.agents` (the interface): -- `ctx.agents.create({ agentId, sessionId, meta?, seed?, agentOptions? }): AgentHandle` — programmatic create on a caller-supplied `sessionId` (e.g. an ACP-generated id), NOT `${id}-session`; `meta` carries cwd/lineage/seed-boundary metadata and `seed` reconstructs a forked child prefix. Returns an [`AgentHandle`](../agent/README.md) — the owner disposes it to tear down exactly this agent (stop loop + await quiescence + unregister + remove session). -- `ctx.agents.resume({ agentId, resumeSessionId, agentOptions? }): Promise` — load a persisted session via `ctx.sessionPersistence` ([session persistence](../../../docs/rfc/implemented/architecture/2026-06-14-session-persistence.md)) and resume an agent on it. The live session id is the resumed id; turn numbering and derived history continue from the loaded log. Requires a session-persistence backend (NOT hard-injected — non-persistent demos still work; `resume` rejects with a clear error when persistence is absent). Returns an `AgentHandle`. +- `ctx.agents.create({ agentId, sessionId, meta?, seed?, agentOptions?, setup? }): Promise` — programmatic create on a caller-supplied `sessionId`, NOT `${id}-session`. It awaits the unpublished setup transaction before returning; `meta` carries cwd/lineage/seed-boundary metadata and `seed` reconstructs a forked child prefix. The resolved [`AgentHandle`](../agent/README.md) owns exact teardown. +- `ctx.agents.resume({ agentId, resumeSessionId, agentOptions?, setup? }): Promise` — load a persisted session via `ctx.sessionPersistence` ([session persistence](../../../docs/rfc/implemented/architecture/2026-06-14-session-persistence.md)), reconstruct its history, then await setup against a fresh unpublished agent scope before rollback-covered publication. The live session id is the resumed id; turn numbering and derived history continue from the loaded log. Requires a session-persistence backend (NOT hard-injected — non-persistent demos still work; `resume` rejects with a clear error when persistence is absent). Returns an `AgentHandle`. The config-driven `ctx.agentLoop.create()` path keeps its agent owned by the loop fiber (it discards the handle) — only the programmatic factory callers (the ACP bridge and in-process subagent backends) hold a handle and own per-agent teardown. @@ -30,20 +30,22 @@ interface Config { agents: Array<{ id: string // required model?: string + resumeSessionId?: string // load this persisted session instead of creating one }> } ``` Agents listed in config are auto-created at startup. (There is no per-agent persona: the deployment persona is `dsh-system-prompt`'s own `persona` config, shared by every agent in the context.) The plugin registers the built-in `model`/`cwd` prompt variables on `ctx.systemPrompt`, resolved per step from the `assemble({ agent })` context — runtime facts of the agents THIS loop drives, unlike the `harness:identity`/`deployment:persona` sections, which live on `dsh-system-prompt` so they survive a swapped loop plugin. -### Classes +### Exported concrete class -- `ReactLoopAgent` — the concrete `Agent` implementation. Owns the inbox (`Inbox`), the per-step `AbortController`, and the loop driver. Everything observable happens through session events and the `agent/*` event taxonomy. -- `Inbox` — per-agent queued + steering FIFOs (`enqueue`, `steer`, `drainQueued`, `drainSteering`, `waitForQueued`). +- `ReactLoopAgent` — the concrete `Agent` implementation. Its inbox is a JavaScript native-private field, and one prepared session can be claimed by only one concrete driver. Everything observable happens through session events and the `agent/*` event taxonomy. + +`Inbox`, `runLoop`, and the instance-bound enable/start controls are package-internal. The package root does not export them, and the package exports map exposes no `./src/*` escape hatch; lifecycle owners create agents through `ctx.agents` rather than constructing or starting the driver internals. ### Loop lifecycle (`loop.ts`) -One invocation of `runLoop()` drives one agent for its whole lifetime: +The internal loop driver runs one agent for its whole lifetime: ``` create agent → emit agent/session-start(source) ⟵ once, before turn 1 @@ -69,29 +71,33 @@ forever: message = waterfall agent/step-result session('assistant/message') each tool-call: session('tool/call') - → tools.execute() [waterfall tools/pre-execute → dispatch → tools/post-execute] + → tools.execute() [pre waterfall → monotonic guards → around dispatch → post waterfall → final notification] → session('tool/result') append buffered post-execute additionalContext as session('context/message')(s) drain steering → session('steering/message') cont = waterfall agent/turn-continuation → ContinuationDecision ({action:'continue', reason?} records reason as next-step steering) - if action==stop (and no pending steering): break + pending steering can override an ordinary stop + terminal = serial agent/turn-stop → ContinuationStop | undefined + (after ordinary decision/reason/steering folding) + if terminal stop, or ordinary action==stop with no pending steering: break session('turn/end') await session/flush - re-enqueue leftover steering as queued + terminal turn: discard steering added before/during close and flush; keep ordinary queued sends + ordinary turn: re-enqueue leftover steering as queued idle unless more queued ``` -Error containment: a throwing plugin ends the **turn**, never the loop. Dispose mid-turn emits `agent/status('disposed')` and ends with reason `disposed`. A step that hits the model's output-token ceiling makes the turn end `max-tokens` (the rule: any `max-tokens` step in the turn surfaces as `max-tokens`; `disposed`/`aborted`/`error` still take precedence) — distinct from a clean `completed` stop. +Error containment: a throwing plugin ends the **turn**, never the loop. A malformed or throwing `agent/turn-stop` policy likewise fails the turn closed. A successful terminal stop stays authoritative through `turn/end` and `session/flush`, preventing their listeners from resurrecting steering through the late fallback. Dispose mid-turn emits `agent/status('disposed')` and ends with reason `disposed`. A step that hits the model's output-token ceiling makes the turn end `max-tokens` (the rule: any `max-tokens` step in the turn surfaces as `max-tokens`; `disposed`/`aborted`/`error` still take precedence) — distinct from a clean `completed` stop. Cancellation: `agent.cancel()` is the single public stop primitive — it clears the queued + steering FIFOs, aborts the in-flight step, and drives a turn-scoped marker the driver checks at every point a turn could start or continue (right after the idle wait, after the `running` flip, before each step, and at the continuation gate) so a turn about to start is dropped. A cancelled turn ends `aborted`; a queued-but-not-started prompt never runs and cannot be batched into the cancelled turn. The marker is reset once per loop iteration, so a cancel governs exactly one turn and never leaks onto a later prompt. (The loop still aborts its own per-step `AbortController` directly on disposal and from `cancel()`; that controller is loop-internal, not a public verb.) ### What is NOT here Everything that goes beyond "call the model, run the tools, repeat" belongs to plugins listening on the event taxonomy: -- Hooks: `agent/session-start`, `agent/prompt-submit`, `agent/pre-step`, `agent/request`, `agent/session-prefix`, `agent/step-result`, `tools/pre-execute`, `tools/post-execute`, `agent/turn-continuation` +- Hooks and policy: the relevant `agent/*` checkpoints plus the guarded `tools/pre-execute` → `tools/execute` → `tools/post-execute` → `tools/result` pipeline; exact signatures and modes live in the [generated event catalog](../../../docs/cordis-catalog/events.md) - Compaction: `agent/pre-step` -- Sandbox, permission, plan mode: `tools/pre-execute` (deny/ask gate), `tools/post-execute` +- Sandbox, permission, plan mode: `tools/pre-execute` for extensible deny/ask, `tools.guard()` for monotonic owner policy, `tools/post-execute` for result decisions, and `tools/result` for final observation - Sub-agents: implemented outside the loop as `ctx.subagents` providers; in-process providers use `ctx.agents.create()` and owned `AgentHandle` teardown, while child streaming/progress and background/poll collection remain deferred. - Persistence: `session/event` + `session/flush` - UI: `session/event` (assistant token stream, boundaries, tool activity) + `agent/*` control events (`agent/status`, `agent/created`/`agent/disposed`) diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index e857676b0f..035332704e 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -8,56 +8,32 @@ Tracks live agents so UI, hook, and orchestrator plugins can find them without i ### Public API -The scoped-registration surface: `Agent.ctx` is the agent's scope context (`dsh-scope`, key = the agent) — register tools/sections/variables/listeners through it for that agent alone, all unwound on disposal. `agentEvents(ctx, agent)` is the fused dispatcher every agent-subject event goes through (carrier + injected subject in one move); `assembleContextFor(agent)` builds the per-agent assembly context (`agent` + `scope` together). `CreateAgentOptions.setup(agentCtx)` composes a child's scoped world at creation — setup registers, it never drives. +The scoped-registration surface: `Agent.ctx` is the agent's scope context (`dsh-scope`, key = the agent) — register tools/sections/variables/listeners through it for that agent alone, all unwound on disposal. `agentEvents(ctx, agent)` is the fused dispatcher every agent-subject event goes through (carrier + injected subject in one move); `assembleContextFor(agent)` builds the per-agent assembly context (`agent` + `scope` together). `CreateAgentOptions.setup(agentCtx)` and `ResumeAgentOptions.setup(agentCtx)` compose a fresh or resumed agent's scoped world while the factory keeps the agent and session unpublished; creation awaits setup and a same-turn owner-unload checkpoint before either creation notification or the first assembly. Setup composes, it never drives: the concrete loop rejects driving verbs until the `agent/session-start` boundary. - `ctx.agents.register(agent: Agent): () => Promise | void` — record an **already-constructed** agent. Disposed with the calling fiber. +- Advanced ordered lifecycle: `enter(agent): () => void` inserts without announcing, and `announce(agent)` emits `agent/created` only for that exact live entry. The async factory uses this split after setup; ordinary plugins use `register()`. - `ctx.agents.get(id: AgentId): Agent | undefined` - `ctx.agents.list(): Agent[]` #### Factory seam (creation) -Agent *creation* is provided by whichever plugin implements `AgentFactory` (phase 1: `dsh-agent-loop`), registered via `setFactory`. This keeps creation on the `dsh-agent` interface so consumers (UI, the ACP bridge) program against `ctx.agents` without depending on the concrete loop package. +Agent *creation* is provided by the plugin implementing `AgentFactory` (`dsh-agent-loop`), registered via `setFactory`. This keeps creation on the `dsh-agent` interface so consumers (UI, the ACP bridge) program against `ctx.agents` without depending on the concrete loop package. - `ctx.agents.setFactory(factory: AgentFactory): () => Promise | void` — register the creation factory (the loop calls this on construction). Throws on a second factory; the slot clears on dispose. -- `ctx.agents.create(options: CreateAgentOptions): AgentHandle` — construct, start, AND register a new agent on a caller-supplied `sessionId` (with optional `meta.cwd`/`meta.parentSession`/`meta.seedLength` and optional `seed` events for forked children). Distinct from `register` (which only records). Throws if no factory is registered. -- `ctx.agents.resume(options: ResumeAgentOptions): Promise` — load a persisted session ([session persistence](../../../docs/rfc/implemented/architecture/2026-06-14-session-persistence.md)) and resume an agent on it. Async; rejects if no factory is registered, or if the factory finds session persistence unconfigured. +- `ctx.agents.create(options: CreateAgentOptions): Promise` — snapshot caller-owned IDs/options/metadata/seed, construct and await optional setup while unpublished, insert and announce both session and agent, open the `agent/session-start` driving boundary, then start a new loop on the caller-supplied `sessionId`. Agent/session IDs are reserved across setup; setup rejection or owner unload publishes nothing. Publication is rollback-covered: if a creation listener throws, entries and scope unwind but effects of already-delivered notifications remain observable; an agent whose announcement began emits `agent/disposed` during that rollback. Rejects if no factory is registered. +- `ctx.agents.resume(options: ResumeAgentOptions): Promise` — snapshot caller-owned IDs/options, load a persisted session ([session persistence](../../../docs/rfc/implemented/architecture/2026-06-14-session-persistence.md)), mint a fresh agent scope, await optional setup while unpublished, then follow the same insert → announce → session-start → loop-start boundary. The IDs are reserved across persistence load and setup; load/setup rejection or owner unload publishes nothing. Rejects if no factory is registered or session persistence is unconfigured. -`AgentHandle = { agent: Agent; dispose(): Promise }`. The disposer is a **capability** — only the holder can tear this agent down. `dispose()` stops the loop, `await`s its exit (quiescence — NOT just the `disposed` status flip), unregisters the agent, and removes its session from the store, in an order that captures the loop's final `session/flush` before the session is detached. `ctx.agents.get(id)` still returns a bare `Agent` — the handle is only for the OWNER that created it. The ACP bridge and in-process subagent backends are production consumers; config-created agents are owned by the loop fiber and never need a handle. +`AgentHandle = { agent: Agent; dispose(): Promise }`. The disposer is a **capability** — only the holder can tear this agent down. `dispose()` stops the loop, `await`s its exit (quiescence — NOT just the `disposed` status flip), unregisters the agent, removes its session from the store, and finally unwinds its scoped world. This order captures the loop's final `session/flush` before the session is detached and keeps scoped listeners alive through that flush. `ctx.agents.get(id)` still returns a bare `Agent` — the handle is only for the OWNER that created it. The ACP bridge and in-process subagent backends are production consumers; config-created agents are owned by the loop fiber and never need a handle. -### Events +### Live events -The full `agent/*` event taxonomy is declared via declaration merging in `dsh-agent` (not `dsh-agent-loop`), so plugins depend only on this package. +`dsh-agent` declares the live `agent/*` coordination vocabulary so plugins do not depend on the concrete loop. Exact signatures, dispatch modes, scope-filtering rules, and payload contracts live in the generated [Cordis event catalog](../../../docs/cordis-catalog/events.md); the [architecture turn flow](../../../docs/architecture.md#turn-flow) shows their order relative to durable session events. -#### Lifecycle (emit) +The lifecycle edges have two important local caveats. `agent/created` runs after scoped setup and after both session and agent registry entries exist, but concrete driving remains locked until the immediately following `agent/session-start`; that non-vetoing notification is the first supported startup injection point. `agent/disposed` runs after the driver is quiescent and the agent leaves the registry, while ordered teardown may still be detaching its session and unwinding its scope. -- `agent/created`, `agent/disposed` — registration/deregistration -- `agent/status` — idle / running / disposed transition -- `agent/queued` — message entered inbox (source-resolved, steering flag) -- `agent/session-start` — the session lifecycle began (once, before turn 1), carrying a `SessionStartSource` (`startup` for a fresh or forked create, `resume` for a reloaded persisted session; `clear`/`compact` reserved). A pure notification — it cannot block startup; a listener seeds context via `agent.inject()` (a `context/message` the first request sees). +Most interception points are cooperative waterfalls returning seam-specific decisions. `agent/pre-step` is a serial surface-mutation checkpoint, while `agent/turn-stop` is the owner-final exception: it runs after ordinary continuation and steering folding, and its terminal state remains through turn close and flush so steering from those later listeners cannot create an extra step or turn. Ordinary queued prompts remain intact. The full rationale is in [the agent-scope RFC](../../../docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md#owner-final-policy-boundaries). -#### Boundaries are durable session events, not `agent/*` emits - -Turn and step boundaries are NOT mirrored as `agent/*` emits: a consumer that needs them reads the durable `turn/start`/`turn/end`/`step/start`/`step/end` events off the `session/event` feed (the session log is the live boundary feed, carrying the `Session` — the turn/step numbers and reasons ride on the event data). See [the event-domain-semantics RFC](../../../docs/rfc/implemented/architecture/2026-06-30-event-domain-semantics.md) and [the remove-boundary-mirror-events RFC](../../../docs/rfc/implemented/simplification/2026-06-20-remove-agent-boundary-mirror-events.md). - -#### Interception seams - -`agent/pre-step` is a **serial** surface-mutation checkpoint; the rest are **waterfalls** that return a small, seam-specific typed **Decision** union (the unified idiom across the taxonomy — a CC/Codex bridge maps its `permissionDecision`/`decision`/`continue` fields onto these, a native plugin returns them directly): - -- `agent/session-start` (emit) — fired once before the first turn; a listener seeds context via `agent.inject()` (it cannot veto startup). -- `agent/prompt-submit` — decide what happens to one drained queued message before it becomes a `user/message`: `PromptDecision` = `allow` (optionally rewriting the prompt `content` or attaching `additionalContext`) or `block` (drop it; a batch whose every prompt is blocked opens a zero-step turn that ends `rejected`). Maps onto Claude Code's `UserPromptSubmit`. -- `agent/pre-step` (serial) — mutate the session surface before the step opens and history is derived (compaction). Fires after `turn/start` and before `step/start`, so a listener's appended events land outside the step; carries the assembled system prompt and the instance's composed session prefix so a token-pressure gate counts everything the request will carry. -- `agent/request` — shape the call config before the model call: a frozen `LlmCallConfig` seed in, a replacement out (model switching, sampling overrides). Content is not shapeable here — every request is a pure function of the session log ([reconstructability RFC](../../../docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)); the loop logs whatever config the request actually uses as a `request/header*` event -- `agent/session-prefix` — compose the session prefix: request-only messages placed in front of the ENTIRE derived history on every request. Fired ONCE per loop instance, lazily before its first pre-step (so pressure gates see this instance's real prefix, never a previous instance's logged one); the composed result is deep-frozen, recorded as `EpochHeader.messagePrefix` on the anchoring `request/header` snapshot, and reused verbatim afterwards — the prefix cannot change mid-session, so the provider prefix cache holds by construction (resume = a new instance = a recompose, attributably anchored by its `'resume'` snapshot). The home for session-stable openers that must not become durable history (a skills catalog, an AGENTS.md digest); `deriveMessages()` never returns it. Content that CHANGES mid-session belongs in the append-only history channels instead — `agent.inject()`, `tools/post-execute` `additionalContext`, prompt-submit `additionalContext` — each a durable `context/message` paid once and prefix-cached thereafter -- `agent/step-result` — post-process the assembled assistant message before tool dispatch (validates what the log records) -- `agent/turn-continuation` — override the continue/stop decision via `ContinuationDecision` = `{action:'stop'}` or `{action:'continue', reason?}` (a `continue` `reason` is recorded as next-step steering in the same turn — the typed `/goal` pattern). Force-continue `/loop`, force-stop budget guard. - -Tool interception is the `tools/pre-execute` / `tools/post-execute` pair in [`dsh-tools`](../tools/README.md) (`PreToolDecision` allow/deny/ask, `PostToolDecision` accept/block) — same typed-Decision idiom, owned there because it is the tool registry's seam. - -#### Error notifications (emit) - -- `agent/error` — step/turn error - -The model's token stream is NOT an `agent/*` event: read it off the durable `session/event` feed as `assistant/chunk` (the same feed persistence and the ACP bridge use). +Turn and step boundaries and the model token stream are durable `session/event` facts rather than mirrored `agent/*` notifications. Consumers read `turn/*`, `step/*`, and `assistant/chunk` from the session feed; tool policy and outcome observation belong to the complete pipeline documented by [`dsh-tools`](../tools/README.md). ### Agent interface (`types.ts`) diff --git a/packages/core/scope/README.md b/packages/core/scope/README.md index 0063ab8b2f..e57f475816 100644 --- a/packages/core/scope/README.md +++ b/packages/core/scope/README.md @@ -7,11 +7,12 @@ Scoped-context registration primitive. `createScope(ctx, key)` mints a Cordis co - `createScope(ctx: Context, key: ScopeKey): Scope` Mint a scope under `ctx`'s fiber. Usable synchronously (effect collection is uid-gated; service resolution falls through to the minting plugin's dependency surface). Throws on a primitive key, or when `ctx`'s fiber is disposing (`INACTIVE_EFFECT`). - `Scope.ctx` The tagged context: registrations through it are scope-visible AND scope-lifetime. Derived contexts (an `extend`, a fiber mounted under it) inherit the tag; nested scopes shadow (nearest tag wins). - `Scope.rawDispose` The EXACT Cordis disposer for the backing fiber — a composite (generator) effect yields THIS function to nest the scope's teardown at that yield position (Cordis dedupes nested effects by function identity; yielding a wrapper leaves the scope disposing as a concurrent sibling). -- `Scope.dispose(): Promise` Idempotent, always-awaitable teardown of every registration made through the scope. +- `Scope.dispose(): Promise` Idempotent, shared quiescence boundary for every registration made through the scope. Racing/repeat calls await the same teardown, including when `rawDispose` invoked the underlying single-shot Cordis disposer first. - `scopeOf(ctx: Context): ScopeKey | undefined` The tag a context (or any context derived from it) carries; `undefined` = context-global. - `scopeTarget(base: T, key?: ScopeKey): Scoped` Build the dispatch `thisArg` for a scope-filtered event: composes `base`'s own `Context.filter` with the scope predicate (untagged listener ⇒ admitted; tagged ⇒ admitted iff tag === key; `key === undefined` ⇒ untagged only). Listener `this` stays `base`-shaped. `{ global: true }` listeners bypass filtering (Cordis semantics). - `Scoped` The compile-time carrier brand: scope-filtered events demand it as their `this` type, so dispatching with a bare subject is a compile error. - `isScopeCarrier(value)` / `carrierKeyOf(value)` Runtime carrier marks, used by the dev invariants to assert every scope-filtered dispatch carries a carrier keyed to the subject its arguments name. +- `scopeHost(ctx, services)` Test/tooling host whose shared `dispose()` waits for both the host fiber and every minted scope, including a child already tearing down through `rawDispose`. ## Design contract diff --git a/packages/core/session/README.md b/packages/core/session/README.md index 629cef5aec..094c3073df 100644 --- a/packages/core/session/README.md +++ b/packages/core/session/README.md @@ -9,7 +9,7 @@ Creates and holds event-sourced `Session` instances. Persistence is intentionall ### Public API - `ctx.sessions.create(id?: SessionId, options?: { seed?: SessionEvent[]; meta?: { cwd?: string; parentSession?: SessionId; createdAt?: number; seedLength?: number } }): Session` — Create a session. `options.seed` replays/forks an existing event log; `options.meta` attaches creation metadata (validated absolute `cwd`, `parentSession` lineage, seed boundary) as the immutable `SessionHeader`. The store fills `version`/`id` and defaults `createdAt` to now; a caller reconstructing a persisted session passes the original `createdAt` and persisted `seedLength` to preserve them. Disposed with the calling fiber. -- `ctx.sessions.flush(session: Session): Promise` Dispatch the awaited `session/flush` durability checkpoint with the carrier captured at enter — THE flush entry point (the loop's turn-end checkpoint and idle injection call it; never dispatch a raw `ctx.parallel`). +- `ctx.sessions.flush(session: Session): Promise` Dispatch the awaited `session/flush` durability checkpoint with the carrier captured at enter — THE flush entry point (the loop's turn-end checkpoint and idle injection call it; never dispatch a raw `ctx.parallel`). Rejects a prepared, detached, or stale same-id object instead of inventing a subject-less carrier. - `ctx.sessions.fork(source, boundary?, childSessionId?): Session` — Resolve a live session object or id, select a seed through the inclusive `boundary` event seq (default: current last event), require that boundary to be `turn/end`, and create a live child session with lineage metadata. - `ctx.sessions.get(id: SessionId): Session | undefined` - `ctx.sessions.list(): Session[]` @@ -19,18 +19,14 @@ Creates and holds event-sourced `Session` instances. Persistence is intentionall `create()` covers the common case (the session is owned by the calling fiber). When a session must be torn down **in order with another resource** — so a final flush is captured before `onAppend` detaches — `create()`'s self-contained effect is wrong, because a fiber unload disposes sibling effects *concurrently*. For that, split the lifecycle and fold it into the owner's single effect: - `ctx.sessions.prepare(id?, options?): Session` — validate the id/cwd and construct the `Session`, WITHOUT entering it into the store. Same options as `create`. -- `ctx.sessions.enter(session): () => void` — wire `onAppend` → `session/event` and add the session to the store; returns the DETACH disposer. Does NOT emit `session/created` (the caller yields the disposer first, then calls `announce`, so a throwing listener rolls the attach back). The id was already validated by `prepare`, which runs in the same synchronous sequence, so `enter` does not re-check. +- `ctx.sessions.enter(session): () => void` — wire `onAppend` → `session/event`, capture its scope carrier, and add the session to the store; returns the idempotent DETACH disposer, which clears both notification and carrier state. Does NOT emit `session/created` (the caller installs the disposer first, then calls `announce`, so a throwing listener rolls the attach back). It re-checks the id because public `prepare`/`enter` calls may be interleaved; a stale prepared object must not overwrite a live same-id session. - `ctx.sessions.announce(session): void` — emit `session/created` for an entered session. -`dsh-agent-loop`'s `AgentLoop.start` is the canonical consumer: it yields `enter`'s detach disposer, the registry unregister, and the loop-stop disposer into ONE composite effect, so teardown stops + awaits the loop (final flush captured) BEFORE detaching the session — whether the trigger is the `AgentHandle`'s `dispose()` or a fiber unload. +`dsh-agent-loop` is the canonical consumer: after unpublished agent setup it enters both session and agent before announcing either, then nests loop stop, agent removal, session detach, and scope unwind in one ordered lifecycle. The final flush therefore settles before this package detaches the session, whether teardown starts from an `AgentHandle` or owner-fiber unload. -### Events +### Live service events -| Event | Mode | Purpose | -|---|---|---| -| `session/created` | emit | A session was created | -| `session/event` | emit (scope-filtered by the owning session's scope) | An event was appended (sync, fire-and-forget) | -| `session/flush` | parallel | Awaited durability checkpoint (persistence plugins drain buffers here) | +The store announces creation, publishes each append, and provides an awaited durability checkpoint. Exact `session/*` signatures, modes, and scope-carrier behavior live in the generated [Cordis event catalog](../../../docs/cordis-catalog/events.md); the append-only payload vocabulary is separately generated into the [persistence catalog](../../../docs/persistence-catalog.md). Persistence consumers write behind from the append notification and drain on the store-owned flush entry point rather than dispatching the event directly. ### Class: `Session` diff --git a/packages/core/system-prompt/README.md b/packages/core/system-prompt/README.md index bf8c8bc4cc..d712cd4b5b 100644 --- a/packages/core/system-prompt/README.md +++ b/packages/core/system-prompt/README.md @@ -1,6 +1,6 @@ # dsh-system-prompt -System prompt assembly registry. Plugins contribute ordered text sections, tool-schema providers, and named prompt variables; the agent loop calls `assemble(context)` once per step, and `renderPrompt(assembly)` is the full system prompt the model sees. The plugin registers the harness-owned openers itself — the static `harness:identity` section and the deployment's `deployment:persona` section — so they exist for every agent regardless of which loop plugin drives it. +System prompt assembly registry. Plugins contribute ordered text sections, tool-schema providers, named prompt variables, and authoritative named protections; the agent loop calls `assemble(context)` once per step, and `renderPrompt(assembly)` is the full system prompt the model sees. The plugin registers the harness-owned openers itself — the static `harness:identity` section and the deployment's `deployment:persona` section — so they exist for every agent regardless of which loop plugin drives it. ## Config @@ -13,23 +13,22 @@ System prompt assembly registry. Plugins contribute ordered text sections, tool- ### Public API -- `ctx.systemPrompt.section(section: PromptSection): () => Promise | void` Contribute a section. The layer is the CALLING context's scope: `agent.ctx` contributes to that agent alone, SHADOWING a same-named global section there (the per-agent persona mechanism — a scoped `deployment:persona`). Duplicate names within one layer throw. Disposed with the calling fiber. +- `ctx.systemPrompt.section(section: PromptSection): () => Promise | void` Contribute a section. The registry snapshots `name`, `order`, and the text value/callback, so later caller-object mutation cannot rename a stored section. The layer is the CALLING context's scope: `agent.ctx` contributes to that agent alone, SHADOWING a same-named global section there (the per-agent persona mechanism — a scoped `deployment:persona`). Duplicate names within one layer throw, and a globally protected section name cannot be shadowed. Disposed with the calling fiber. - `ctx.systemPrompt.tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void` Contribute tool schemas, evaluated at each assembly with that assembly's context. `ToolProviderResult` = `{ schemas, knownNames? }`: `schemas` is the post-restriction visible set for `context.scope`; `knownNames` (defaulting to the schemas' names) is the pre-restriction universe `toolOrder` validates against. A provider must not return a schema named `TOOL_ORDER_REST`. Scoped providers are consulted only for their scope's assemblies. Disposed with the calling fiber. - `ctx.systemPrompt.variable(name: string, provider: (context) => string | undefined): () => Promise | void` Contribute a prompt variable, referenced from section text as `{{name}}`. Scoped variables (via `agent.ctx`) shadow a same-named global for that agent. Duplicate-in-layer or unreferenceable names throw; `undefined` means "no value for this assembly". Disposed with the calling fiber. -- `ctx.systemPrompt.assemble(context?: AssembleContext): Promise` Assemble the prompt for one caller: the global layer merged with `context.scope`'s layer (scoped shadows global). Runs through the `system-prompt/assemble` waterfall (scope-filtered by `context.scope`). Rejects when a configured `toolOrder` names a tool outside the providers' `knownNames` universe (a restricted-away KNOWN tool is a normal absence), or when a provider returns the reserved rest-entry name. +- `ctx.systemPrompt.protect(protection: PromptProtection): () => Promise | void` Make named section/tool contributions authoritative after the assembly waterfall. Protection restores canonical registry/provider presence and definition; restored entries keep canonical order with one another and anchor before their first surviving later unprotected canonical neighbor (or at the end), without undoing listener reordering of unprotected entries. Canonical absence is authoritative too, so a mode-hidden tool cannot be fabricated by a listener. Calling through `agent.ctx` protects only that agent's assemblies. A global section protection additionally reserves its name against scoped shadows; registering either side of that conflict fails loudly instead of treating the shadow as canonical. Inputs are snapshotted, empty protections throw, and disposal removes the protection. +- `ctx.systemPrompt.assemble(context?: AssembleContext): Promise` Assemble the prompt for one caller: the global layer merged with `context.scope`'s layer (scoped shadows global). Runs through the scope-filtered `system-prompt/assemble` waterfall, then restores protected contributions from the pre-waterfall canonical assembly. Rejects when a configured `toolOrder` names a tool outside the providers' `knownNames` universe (a restricted-away KNOWN tool is a normal absence), or when a provider returns the reserved rest-entry name. -### Events +### Live events -| Event | Mode | Purpose | -|---|---|---| -| `system-prompt/assemble` | waterfall | Mutate/extend the assembly (with the caller's context) before it reaches the model | -| `system-prompt/change` | emit | A section, tool provider, or variable was registered or unregistered (possibly for one scope); deliberately unfiltered | +Prompt assembly is the scope-filtered transformable seam; registry change is the deliberately unfiltered notification that an assembly input changed, possibly for one scope. Exact signatures, dispatch modes, and filtering contracts live in the generated [Cordis event catalog](../../../docs/cordis-catalog/events.md). Named protections apply only after a successful assembly waterfall returns and are owned by the service rather than represented as another event listener. ### Key types - `AssembleContext` — what one `assemble()` call is FOR. Merge-extensible; declares `scope?: ScopeKey` (the layer selector) here, and `dsh-agent` declares `agent?: Agent` (the typed DX field — never set without `scope`; use `assembleContextFor(agent)`). Providers must tolerate absent fields (a bare `assemble()` carries an empty, scope-less context). - `PromptSection` — `{ name, order, text: string | ((context) => string) }`. Sections are concatenated in ascending `order`. Order bands: `-100` is the harness identity, `0` the deployment persona (both registered by this plugin), tool guidance uses `100–199`; other negative orders also render before the persona. - `PromptAssembly` — `{ sections: AssembledSection[], tools: ToolSchema[], variables: Record }`. Section texts arrive resolved but not yet interpolated; `variables` holds every registered variable resolved against the context. Tool schemas are part of the assembly by design: "what the model is told it can do" is one coherent thing, even though adapters transmit schemas as a separate wire field. +- `PromptProtection` — `{ sections?: readonly string[], tools?: readonly string[] }`. Named contributions whose canonical pre-waterfall state is restored after all listeners; protections compose by set union rather than callback order, and global section names are reserved against scoped shadows. - `renderPrompt(assembly)` — interpolates `{{variable}}` references in each section, drops empty sections, joins with blank lines. STRICT: an unknown reference (`Object.hasOwn` lookup — prototype names like `{{constructor}}` are unknown), a registered-but-valueless reference, a malformed complete `{{…}}` group, or a `{{` that opens no complete group while a `}}` still follows (`{{{model}}}`) throws — fail loud beats shipping a malformed prompt. A lone `{{` with no `}}` anywhere after it passes through verbatim; substituted values are never re-scanned. Merge-extensible: plugins can declare extra fields on `PromptAssembly` and `AssembleContext` via declaration merging. @@ -40,6 +39,7 @@ Merge-extensible: plugins can declare extra fields on `PromptAssembly` and `Asse - Variable providers: the agent loop registers `model` and `cwd`; any plugin can register the facts it owns (a future `date`, git state, …). - Tool schema providers: `ToolRegistry` registers itself as a tool provider automatically. - The `system-prompt/assemble` waterfall: mutate or replace the assembly per caller (dynamic tool filtering, extra variables). +- `systemPrompt.protect()`: reserve canonical section/tool contributions for invariants that ordinary waterfall listeners must not be able to remove or replace. ### What is NOT here diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index 2c423a61d4..41c40332f0 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -1,6 +1,6 @@ # dsh-tools -Tool registry and execution pipeline. Tool plugins register their schemas and executors; the agent loop executes each call through `tools/pre-execute` (the allow/deny gate) → `tools/execute` (an around-dispatch wrapper for timeout/retry/metrics plugins) → `tools/post-execute` (inspect/replace the result, attach context). The registry also owns HOW its tools are presented to the model — its `mode` config selects native function calling, [Code Mode](#code-mode), or both. +Tool registry and execution pipeline. Tool plugins register their schemas and executors; the agent loop executes each call through `tools/pre-execute` (the extensible allow/deny gate) → monotonic registered guards → `tools/execute` (an around-dispatch wrapper for timeout/retry/metrics plugins) → `tools/post-execute` (inspect/replace the result, attach context) → the observe-only `tools/result` notification. The registry also owns HOW its tools are presented to the model — its `mode` config selects native function calling, [Code Mode](#code-mode), or both. ## Service: `ToolRegistry` (ctx key: `tools`) @@ -11,44 +11,43 @@ tools: mode: native # native (default) | code | both ``` -`native` contributes every registered tool as a wire function definition — the default, byte-for-byte the pre-config behavior. `code` contributes exactly ONE wire tool, `run_code`, plus the generated `tools:sdk` prompt section (see [Code Mode](#code-mode)). `both` contributes every native definition AND `run_code` + the SDK section. In non-native modes `run_code` is reserved presentation infrastructure rather than a filterable capability: allow/deny restrictions cannot remove it, and registering, shadowing, or explicitly filtering that name fails loudly. Non-native modes require a loaded `ctx.codeRuntime` with `language: 'typescript'`; a missing or mismatched runtime rejects every prompt assembly with an actionable error, and a `systemPrompt.toolOrder` naming tools the mode no longer contributes rejects the assembly the same way. +`native` contributes the calling agent's visible end capabilities as wire function definitions. Under `code`, this registry's canonical contribution is the reserved `run_code` transport plus the generated `tools:sdk` prompt section (see [Code Mode](#code-mode)); an assembly listener may still deliberately add unrelated schemas. `both` contributes the visible native definitions, `run_code`, and the SDK section. In non-native modes both infrastructure pieces are protected rather than filterable capabilities: restrictions and assembly listeners cannot remove them, a scoped section cannot shadow the globally protected `tools:sdk`, and registering, shadowing, or explicitly filtering `run_code` fails loudly. Non-native modes require a loaded `ctx.codeRuntime` with `language: 'typescript'`; a missing or mismatched runtime rejects every prompt assembly with an actionable error, and a `systemPrompt.toolOrder` naming tools the mode no longer contributes rejects the assembly the same way. ### Public API -- `ctx.tools.register(definition: ToolDefinition): () => Promise | void` Register a tool. The layer is the CALLING context's scope (`dsh-scope`): a plain plugin context registers globally; an agent's `agent.ctx` registers for that agent alone, SHADOWING a same-named global tool there (per-agent tool variants). Duplicate names within one layer throw; non-native modes also reject the reserved `run_code` transport name. Disposed with the calling fiber (= the agent, for scoped registrations). +- `ctx.tools.register(definition: ToolDefinition): () => Promise | void` Register a tool as a frozen snapshot. Parameters must survive lossless-JSON validation before and after cloning; scalar fields are copied, and execute/presentation callbacks are bound once to the original definition as their method receiver, so later callback-property replacement cannot change dispatch. The layer is the CALLING context's scope (`dsh-scope`): a plain plugin context registers globally; an agent's `agent.ctx` registers for that agent alone, SHADOWING a same-named global tool there (per-agent tool variants). Duplicate names within one layer throw; non-native modes also reject the reserved `run_code` transport name. Disposed with the calling fiber (= the agent, for scoped registrations). - `ctx.tools.restrict(filter: ToolRestriction): () => Promise | void` Scoped-only (throws on a plain context): mask the GLOBAL end-capability surface for the calling agent — `allow` keeps only the listed tools, `deny` removes them; multiple restrictions intersect; scoped registrations bypass restriction as explicit grants. The reserved `run_code` transport remains available automatically and cannot be named explicitly. Snapshot-at-registration, loud unknown-name validation, `restrict({})` rejects (the materialized-empty-config trap). -- `ctx.tools.get(name: string, scope?: ScopeKey): ToolDefinition | undefined` Resolution as one scope sees it (shadowing applied; a restricted-away global reads as absent) — presenters pass the calling agent so the card matches what executed. -- `ctx.tools.visible(scope?: ScopeKey): ToolDefinition[]` THE visibility function — restricted global layer ∪ the scope's own layer, plus the reserved transport in non-native modes — feeding prompt assembly, `get`, and `execute`, so what the model sees and what dispatches can never disagree. +- `ctx.tools.get(name: string, scope?: ScopeKey): ToolDefinition | undefined` Resolution as one scope sees it (shadowing applied; a restricted-away global reads as absent) — presenters pass the calling agent so the card matches what executed. Returned definitions are the registry's frozen snapshots. +- `ctx.tools.visible(scope?: ScopeKey): ToolDefinition[]` The canonical executable view — restricted global layer ∪ the scope's own layer, plus the reserved transport in non-native modes — feeding prompt assembly, `get`, and `execute`, so presentation and dispatch resolve the same frozen definitions. - `ctx.tools.knownNames(scope?: ScopeKey): string[]` The PRE-restriction end-capability name universe `restrict` validates against: a typo fails loud while a restricted-away tool stays a normal absence. Presentation providers add reserved transport names separately when validating `toolOrder`. - `ctx.tools.schemas(scope?: ScopeKey): ToolSchema[]` Schemas of everything the scope can see (without the `execute` functions). The shipped tools' schemas are catalogued in [docs/tool-catalog.md](../../../docs/tool-catalog.md), generated by booting each tool plugin and harvesting this method (see [the tool-schema-catalog RFC](../../../docs/rfc/implemented/process/2026-07-02-tool-schema-catalog.md)). -- `ctx.tools.execute(exec: ToolExecution): Promise` Execute one tool call through the `tools/pre-execute` → `tools/execute` → `tools/post-execute` pipeline. +- `ctx.tools.guard(guard: ToolGuard): () => Promise | void` Register a monotonic synchronous execution guard after `tools/pre-execute`: returning a reason denies the call, while `undefined` leaves it unchanged. A plain-context guard applies globally; an `agent.ctx` guard applies only to that agent. Later waterfall listeners cannot turn a guard denial back into permission. Disposed with the calling fiber. +- `ctx.tools.execute(exec: ToolExecutionInput): Promise` Snapshot one single-use call input into a pipeline-owned execution, assign its opaque correlation token, require `arguments` to be losslessly JSON-serializable before and after cloning, deep-freeze the detached arguments, and protect its identity before running `tools/pre-execute` → guards → `tools/execute` → `tools/post-execute`; optional `signal` is the only operational field an around-dispatch wrapper may add, replace, or remove. Validate the final result as losslessly JSON-serializable and freeze the complete execution before `tools/result` observers run. Invalid or unstable input—including cloneable mutable exotics—and malformed or non-JSON listener/tool results normalize to `isError` outcomes rather than bypassing policy or failing later at the session log. ### Injected services `SystemPrompt` — the registry automatically feeds its tool schemas into the system-prompt assembly via `ctx.systemPrompt.tools()`. -### Events +### Live events -| Event | Mode | Purpose | -|---|---|---| -| `tools/pre-execute` | waterfall | Allow/deny gate BEFORE a tool runs (sandbox, permission, hooks); returns `PreToolDecision`. Scope-filtered by `exec.agent`: an `agent.ctx` listener gates only its own agent | -| `tools/execute` | waterfall | Around-dispatch wrapper (timeout, retry, metrics): `(exec, next)` → the dispatched `ToolExecutionResult`; `next()` is dispatch-with-normalization (resolving through the caller's visible view). Scope-filtered by `exec.agent` like the gate | -| `tools/post-execute` | waterfall | Inspect/replace the result AFTER a tool runs, attach context; returns `PostToolDecision` | -| `tools/change` | emit | A tool or restriction was registered or unregistered (possibly for one scope); deliberately unfiltered | +The live registry pipeline has three transformable waterfalls followed by the owner-final `tools/result` observation boundary; registry changes are deliberately unfiltered shared-state notifications. Exact signatures, dispatch modes, scope filtering, and failure-containment contracts live in the generated [Cordis event catalog](../../../docs/cordis-catalog/events.md), while the complete ordering is visualized in the generated [tool execution pipeline](../../../docs/tool-execution-pipeline.md). `tools/result` is live and observe-only; the similarly named `tool/result` is the durable session event the agent loop appends afterwards. ### Key types -- `ToolDefinition` — `ToolSchema` + `execute(args, exec): Promise` (the bare array is the model-facing content; the object form additionally attaches an opaque, JSON-serializable `meta` presentation payload persisted on the `tool/result` event and handed back to `presentResult`), plus optional `presentCall(args)` / `presentResult(args, result)` for tool-owned UI presentation (see below). It also carries an optional cooperative timeout budget `timeoutMs?: number` (ms) enforced by `@deepseek-ai/dsh-timeout-policy`, never sent to the model. -- `ToolExecution` — one pending tool call: `{ callId, name, arguments, agent?, signal? }`. -- `ToolExecutionResult` — outcome: `{ callId, content, isError, error?, additionalContext?, meta? }`. On failure with a `HarnessError`, `error: { name, code }` carries the structured failure class alongside the model-facing text (the loop forwards it onto the `tool/result` session event for retry/sandbox plugins and replay). `additionalContext` (a `HookContext`) ferries any `tools/post-execute` context up to the loop, which buffers it and appends it as a `context/message` after all `tool/result`s in the step. `meta` is the tool's opaque presentation payload from a successful `execute` (the object return form); the loop forwards it onto the `tool/result` session event for result-card rendering. +- `ToolDefinition` — `ToolSchema` + `execute(args, exec): Promise` (the bare array is the model-facing content; the object form additionally attaches an opaque, JSON-serializable `meta` presentation payload persisted on the `tool/result` event and handed back to `presentResult`), plus optional `presentCall(args)` / `presentResult(args, result)` for tool-owned UI presentation (see below). It also carries an optional cooperative timeout budget `timeoutMs?: number` (ms) enforced by `@deepseek-ai/dsh-timeout-policy`, never sent to the model. Registration stores a frozen snapshot with detached JSON parameters and once-bound callback identities. +- `ToolExecutionInput` — the caller-supplied call description: `{ callId, name, arguments, agent?, parent?, signal? }`; `arguments` must be losslessly JSON-serializable, and callers may pass an enclosing execution's opaque token as `parent` but never choose the new execution's own token. +- `ToolExecutionToken` — a frozen, property-free identity value assigned by the registry. It supports equality correlation only and exposes no live outer execution state. +- `ToolExecution` — the pipeline-owned call: immutable `{ token, callId, name, arguments, agent?, parent? }` identity plus optional operational `signal`, which an around wrapper may add, replace, remove, and restore. A nested call's `parent` is a `ToolExecutionToken`, not an execution object. +- `ToolExecutionResult` — losslessly JSON-serializable outcome: `{ callId, content, isError, error?, additionalContext?, meta? }`. The registry validates the complete post-policy value before final observation. On failure with a `HarnessError`, `error: { name, code }` carries the structured failure class alongside the model-facing text (the loop forwards it onto the `tool/result` session event for retry/sandbox plugins and replay). `additionalContext` (a `HookContext`) ferries any `tools/post-execute` context up to the loop, which buffers it and appends it as a `context/message` after all `tool/result`s in the step. `meta` is the tool's opaque presentation payload from a successful `execute` (the object return form); the loop forwards it onto the `tool/result` session event for result-card rendering. - `PreToolDecision` — `{kind:'allow'}` | `{kind:'deny', reason}` | `{kind:'ask', reason?}`. Input rewrite (changing `arguments`) is deliberately NOT offered (it would desync the pre-execution audit/history/UI from what ran — its own proposed RFC); `ask` degrades to `deny` until the permission system lands. - `PostToolDecision` — `{kind:'accept', content?, additionalContext?}` (keep the call successful, optionally replacing the model-facing content) | `{kind:'block', feedback, additionalContext?}` (turn it into an `isError` whose content is the corrective feedback). Output replacement is clean because `tool/result` is logged AFTER `execute()` returns. +- `ToolGuard` — `(execution) => string | undefined`; the returned string is a final monotonic denial reason evaluated after the reorderable pre-execute waterfall and before dispatch. - `ToolCallView` / `ToolResultView` — provider-neutral `card`-tagged render intents a tool returns from `presentCall` / `presentResult` to own how a UI renders ITS calls (see "Tool-owned UI presentation"). ### Extension points - Tool plugins call `ctx.tools.register()` — schemas flow into the assembly automatically. -- `tools/pre-execute` is the allow/deny gate (sandbox, permission, hooks): listeners receive `(exec, next)` and call `next()` to delegate to the default (allow) or return a `PreToolDecision` to short-circuit; a `deny`/`ask` skips dispatch and yields an `isError` result. `tools/execute` is the around-dispatch seam (timeout, retry, metrics): listeners receive `(exec, next)` and call `next()` to delegate to core dispatch (returning its `ToolExecutionResult`, optionally wrapped), or return a replacement result to short-circuit dispatch; the base `next()` IS dispatch-with-normalization, so `await next()` already yields an `isError` result for a thrown/unknown tool (never a raw throw). A wrapper mutates `exec` in place before `next()` — e.g. replacing `exec.signal` with a per-call deadline — because cordis `next()` ignores passed arguments. `tools/post-execute` is the inspect/transform seam: `(exec, result, next)` → a `PostToolDecision` that can replace content, block with feedback, or attach `additionalContext`. Core dispatch is the base of the `tools/execute` waterfall; the tool body keeps its own try/catch so a thrown tool still reaches `post-execute` as an `isError`. All follow the typed-Decision idiom shared with the `agent/*` interception seams (see [`dsh-agent`](../agent/README.md)); `@deepseek-ai/dsh-timeout-policy` is the reference `tools/execute` wrapper. +- `tools/pre-execute` is the reorderable allow/deny gate (sandbox, permission, hooks): listeners receive `(exec, next)` and call `next()` to delegate to the default (allow) or return a `PreToolDecision` to short-circuit; a `deny`/`ask` skips dispatch and yields an `isError` result. `ctx.tools.guard()` installs scope-aware monotonic policy after that waterfall when a denial must not be overridable by listener ordering. `tools/execute` is the around-dispatch seam (timeout, retry, metrics): listeners receive `(exec, next)` and call `next()` to delegate to core dispatch (returning its `ToolExecutionResult`, optionally wrapped), or return a replacement result to short-circuit dispatch; the base `next()` is dispatch-with-normalization, so `await next()` already yields an `isError` result for a thrown or unknown tool. A wrapper may change only `exec.signal` before `next()`—adding a per-call deadline, replacing a caller signal, or restoring absence afterwards—because call identity is protected before policy begins. `tools/post-execute` is the inspect/transform seam: `(exec, result, next)` → a `PostToolDecision` that can replace content, block with feedback, or attach `additionalContext`. Core dispatch is the base of the `tools/execute` waterfall; the tool body keeps its own error boundary so a thrown tool still reaches `post-execute` as an `isError`. Finally, `tools/result` observes the immutable authoritative result after every transform and error boundary. All follow the typed-decision idiom shared with the `agent/*` seams (see [`dsh-agent`](../agent/README.md)); `@deepseek-ai/dsh-timeout-policy` is the reference `tools/execute` wrapper. - MCP servers: one plugin per server, discover tools, call `ctx.tools.register()` with the server's schemas. ### Typed tool parameter schemas @@ -135,13 +134,13 @@ const bash = defineTool({ Under `mode: code` (or `both`) the registry turns the tool surface into a programming API, per the [Code Mode RFC](../../../docs/rfc/implemented/feature/2026-06-15-code-mode.md): the model writes a TypeScript program (the body of an async function) and passes it to the reserved wire transport `run_code`; the program runs in `ctx.codeRuntime` (the [code-execution seam](../../code-runtime/README.md) — the shipped backend is a worker thread) with one async binding per visible end-capability tool (`await tools.bash({...})`), and ONLY what it prints or returns re-enters the model's context. Scope restrictions change those SDK bindings but cannot remove or replace the transport itself. -- **The SDK section** (`tools:sdk`, order 150): a lazy prompt section regenerating, at each assembly, a `declare const tools: {...}` TypeScript declaration of every registered tool except `run_code` (exotic names via quoted keys), plus fixed usage instructions. Deterministic — lexicographic tool order, byte-identical text for an unchanged tool set (prefix-cache-friendly). The codegen (`jsonSchemaToTs`, exported) is TOTAL: constructs outside the `defineTool` subset degrade to `unknown`, never throw. -- **The dispatch bridge** (`run_code`'s execute): every binding call is JSON-normalized BEFORE dispatch (a value that does not survive — `BigInt`, circulars — rejects that one call, so the dispatched form and the logged form are the same JSON value by construction), serialized through a per-run queue (even `Promise.all` executes the underlying `ctx.tools.execute()` calls one at a time in submission order — the tool contract carries no concurrency-safety metadata yet), gated by `tools/pre-execute`/`tools/post-execute` like any native call (a deny reaches the program as a binding rejection), and logged as one `tool/code-dispatch` session event (log-only: `deriveMessages()` never surfaces it) with the deterministic sub-id `:code:`. A failed sub-call REJECTS the program-side promise with the tool's error text — real code error handling, no bespoke envelope. A sub-call's `additionalContext` is deliberately DROPPED (no safe outlet mid-run without breaking tool-call/result adjacency; deferred until a real hook needs it through Code Mode). +- **The SDK section** (`tools:sdk`, order 150): a lazy prompt section regenerating, at each assembly, a `declare const tools: {...}` TypeScript declaration of the calling scope's visible end capabilities (exotic names via quoted keys), plus fixed usage instructions. The registry protects this section and the `run_code` wire schema after the assembly waterfall, so Code Mode cannot silently lose either half of its transport. Deterministic — lexicographic tool order, byte-identical text for an unchanged tool set (prefix-cache-friendly). The codegen (`jsonSchemaToTs`, exported) is total: constructs outside the `defineTool` subset degrade to `unknown`, never throw. +- **The dispatch bridge** (`run_code`'s execute): every binding call is JSON-normalized before dispatch (a value that does not survive — `BigInt`, circulars — rejects that one call, so the dispatched form and logged form are the same JSON value by construction), serialized through a per-run queue (even `Promise.all` executes underlying calls one at a time in submission order), given the outer execution's opaque token as `parent`, and run through the complete pre-execute → guards → execute → post-execute → result pipeline. A denial reaches the program as a binding rejection, and each sub-call is logged as a `tool/code-dispatch` session event with deterministic id `:code:`; `deriveMessages()` does not surface that event. Token correlation lets commit-style observers defer an inner success until the final `run_code` result without exposing the live outer execution; ordinary tool side effects are not rolled back. A sub-call's `additionalContext` is deliberately dropped because inserting it inside a running parent call would break tool-call/result adjacency. - **Settlement discipline**: the bridge owns a run-scoped abort that follows the outer signal in and fires when the run settles for any reason, so a budget expiry aborts an in-flight sub-tool instead of orphaning it; the bridge then drains its queue BEFORE returning, so every `tool/code-dispatch` lands inside the open turn. A failed run throws `CodeRunFailedError` (`code: 'CODE_RUN_FAILED'`, message = the failure kind + captured logs), which the pipeline converts to a structured `isError` the model self-corrects from. -The wire collapse is the registry's own contribution (`systemPrompt.tools()` is mode-aware), so the logged `request/header` records it for free — under `code`, the assembled tool list is exactly `[run_code]`, pinned by tests and the snapshot goldens. Try it: `pnpm run demo:code-mode` ([the coding-agent example's Code Mode overlay](../../../examples/coding-agent/README.md#code-mode)); `pnpm run demo:code-mode acp` serves the same mode over ACP instead of the REPL. +The wire collapse is the registry's own contribution (`systemPrompt.tools()` is mode-aware), so the logged `request/header` records it for free. With no deliberate schema-adding assembly listener, `code` assembles exactly `[run_code]`, pinned by tests and the snapshot goldens; protection guarantees that `run_code` and `tools:sdk` remain present, not that unrelated listener additions are erased. Try it: `pnpm run demo:code-mode` ([the coding-agent example's Code Mode overlay](../../../examples/coding-agent/README.md#code-mode)); `pnpm run demo:code-mode acp` serves the same mode over ACP instead of the REPL. ### What is NOT here (TODO) -- **Tool shapes review** — when real tools land (e.g. a concurrency-safety hint for parallel execution); phase 1 executes tool calls sequentially. -- **Parallel execution** — the loop currently iterates tool calls sequentially. +- **Concurrency metadata** — tool definitions do not declare whether executions are safe to overlap. +- **Parallel execution** — the loop and Code Mode bridge execute tool calls sequentially until that metadata exists. diff --git a/packages/subagent/README.md b/packages/subagent/README.md index 87930167e9..62de4ffb08 100644 --- a/packages/subagent/README.md +++ b/packages/subagent/README.md @@ -5,13 +5,13 @@ The subagent seam: an agent delegating work to a child agent. Like the [bash](.. | Package | Role | ctx key | |---|---|---| | `subagent/` | Abstract subagent seam: named-provider registry + vocabulary | `ctx.subagents` | -| `subagent-inprocess/` | Shared in-process run driver (pure lib; registers nothing) | — | +| `subagent-inprocess/` | Shared in-process run driver (no provider; one cleanup effect per run) | — | | `subagent-spawn/` | In-process backend: a fresh child agent | (registers on `ctx.subagents`) | | `subagent-fork/` | In-process backend: a child seeded with the parent's completed-turn prefix | (registers on `ctx.subagents`) | | `subagent-subprocess/` | Shared out-of-process machinery: env scrub, dispose ladder, isolated config dirs (pure lib; registers nothing) | — | | `subagent-acp/` | Out-of-process backend: a child agent in a spawned subprocess, driven over ACP | (registers on `ctx.subagents`) | | `tool-subagent/` | Model-facing `subagent` delegation tool over `ctx.subagents` | (registers on `ctx.tools`) | -The interface lives at `subagent/subagent/`. The in-process `subagent-spawn` / `subagent-fork` backends share the `subagent-inprocess` driver (a pure library — both depend on it, neither on the other), the out-of-process `subagent-acp` backend builds on the `subagent-subprocess` library (the credential env scrub, the dispose ladder, isolated config dirs) and ships alongside them here; the test-only `dsh-subagent-mock` (in [support](../support/README.md)) is separate. All **product** packages except the mock. +The interface lives at `subagent/subagent/`. The in-process `subagent-spawn` / `subagent-fork` backends share the `subagent-inprocess` driver (a library with no provider of its own — both depend on it, neither on the other), the out-of-process `subagent-acp` backend builds on the `subagent-subprocess` library (the credential env scrub, the dispose ladder, isolated config dirs) and ships alongside them here; the test-only `dsh-subagent-mock` (in [support](../support/README.md)) is separate. All **product** packages except the mock. The proposal and design rationale: [docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md](../../docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md). diff --git a/packages/subagent/subagent-inprocess/README.md b/packages/subagent/subagent-inprocess/README.md index 8e88505366..1c5aa13374 100644 --- a/packages/subagent/subagent-inprocess/README.md +++ b/packages/subagent/subagent-inprocess/README.md @@ -1,6 +1,6 @@ # @deepseek-ai/dsh-subagent-inprocess -The shared **in-process subagent run driver**. A pure library (no provider, no registration) that the in-process backends — [spawn](../subagent-spawn/README.md) (a fresh child) and [fork](../subagent-fork/README.md) (a child seeded with a prefix of the parent's log) — both build on. The backends are thin shells that differ ONLY in the session seed they pass; everything downstream lives here, so neither backend depends on the other. +The shared **in-process subagent run driver**. A library with no provider or import-time registration that the in-process backends — [spawn](../subagent-spawn/README.md) (a fresh child) and [fork](../subagent-fork/README.md) (a child seeded with a prefix of the parent's log) — both build on. Each accepted run installs one provider-owned cleanup effect. The backends are thin shells that differ ONLY in the session seed they pass; everything downstream lives here, so neither backend depends on the other. ## What it exports @@ -8,16 +8,16 @@ The shared **in-process subagent run driver**. A pure library (no provider, no r Runs a child as a child [`Agent`](../../core/agent) on the same cordis context (`ctx.agents`): -1. computes child depth = `depthOf(parent) + 1`; if `request.maxDepth` is set and exceeded, throws `SubagentDepthError` (the `depthLimit` capability); a `request.outputSchema` is asserted against the supported subset (`assertSupportedOutputSchema` from [dsh-tools](../../core/tools/README.md)) and then snapshotted with `structuredClone` before any child exists — assertion first so a hostile value fails as `OutputSchemaError` (never a raw clone error), the snapshot so a post-`start()` caller mutation cannot drift the enforced schema; -2. creates a child via `ctx.agents.create` with a fresh `AgentId`/`SessionId`, the parent's `cwd` + `parentSession` lineage, the optional `options.seed` (fork's completed-turn prefix; omitted for a fresh child), and `agentOptions` (the child inherits the **parent's model** by default — a child with no model can't run — overridable via `request.agentOptions.model`; the deployment persona needs no inheritance — it is a context-wide prompt section); +1. snapshots the accepted request before asynchronous owner setup: the parent and signal remain identity capabilities but are never reread from the caller-owned record; tool filter, seed, agent options, output schema, and prompt are detached. It computes child depth = `depthOf(parent) + 1` and rejects `request.maxDepth` overflow with `SubagentDepthError`; `outputSchema` is asserted before cloning so a hostile value fails as `OutputSchemaError`, while the prompt passes the session log's lossless-JSON check before and after cloning; +2. first installs provider ownership, then attaches the request abort listener and creates one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves no child or orphaned listener. Async child creation goes through that fiber's `ctx.agents` service with fresh IDs, lineage/seed, inherited model, and an unpublished setup transaction for persona, tool restriction, and structured output. Parent teardown, provider teardown, and manual `run.dispose()` all dispose this exact node, preventing publication after it becomes inactive and awaiting the same quiescence boundary. `startInProcessRun` still returns its `SubagentRun` immediately, and cancellation during creation is recorded and applied when a child exists; 3. drives the one-shot: `child.send(prompt)` then `await child.whenIdle()` (ordering matters — `send` enqueues synchronously, so `whenIdle` observes the queued work and resolves on the child's `running → idle` transition, never before the turn starts); there is deliberately NO re-prompt for a structured child that finished cleanly without calling `structured_output` — the shortfall maps to an `error` result for the parent; 4. reads the result, scoped to the child's OWN events (everything at or after `seedLength`, so a seeded child that produced no message of its own never returns the seeded parent's last message): the last `assistant/message` content (deep-cloned — the log is frozen) and the last `turn/end.reason` mapped to a `SubagentStopReason`. A structured run surfaces the captured value as `result.structured`; a structured child that finished cleanly WITHOUT ever capturing settles `error` (a clean finish without the demanded result is a failure, not a success with a missing field). -`dispose()` delegates to `AgentHandle.dispose()` (stop loop → await quiescence → remove session); `cancel()` cancels the child's in-flight turn. A cancel landing before any `turn/end` (the pre-turn window) still settles `aborted`, honoring the cancel contract rather than the generic no-turn `error`. +`dispose()` awaits creation or rollback and then delegates to `AgentHandle.dispose()` (stop and drain → remove agent → detach session → unwind scope); `cancel()` records its request even before publication and cancels the child immediately once available. A cancel landing before any `turn/end` still settles `aborted`, honoring the cancel contract rather than the generic no-turn `error`. ### `InProcessRunOptions` -`{ providerName: string; seed?: SessionEvent[] }` — the per-backend inputs: the provider name (for error context) and the optional child-session seed. +`{ seed?: SessionEvent[] }` — the optional child-session seed: absent for spawn, or the parent's balanced completed-turn prefix for fork. ### Structured output (package-internal runtime) @@ -25,10 +25,10 @@ Runs a child as a child [`Agent`](../../core/agent) on the same cordis context ( - the `structured_output` capture tool with the run's REAL schema as its registered `parameters`, validating each call (`validateStructuredValue`) — violations become an `INVALID_ARGS` isError the model retries in-turn; a valid call STAGES the value in a `WeakMap` keyed by that call's `ToolExecution` object; - the calling instruction as an ordinary order-190 scoped prompt section (the demand travels with the tool, as prompt state of exactly one agent); -- a scoped `system-prompt/assemble` re-assert (`prepend: true`) that post-processes its downstream chain, replacing conflicting entries with the child's capture tool and instruction — the loop logs the rendered assembly as the step's `request/header`, so the demand is reconstructable log state; -- a scoped `tools/post-execute` COMMIT (`prepend: true`): the staged value becomes the run's result when that same execution's downstream post-execute decision accepts it. Execution-object identity prevents an orphaned stage from matching a later call even when an adapter reuses the call id; -- a scoped `tools/pre-execute` deny for any call arriving after the capture — terminal means terminal WITHIN the step; -- a scoped `agent/turn-continuation` veto (`prepend: true`) stopping the child's turn once its output is captured, so a successful capture doesn't buy a wasted extra model step. +- a scoped `systemPrompt.protect()` registration making the capture instruction and schema canonical after the complete assembly waterfall. Canonical absence is protected too: pure Code Mode removes `structured_output` from the wire and declares it through the SDK. The tool registry separately owns and protects its `tools:sdk` section and reserved `run_code` transport; protection guarantees those named contributions, while unrelated listener-added schemas remain the listener's responsibility. The loop logs the finalized assembly as the step's `request/header`, so the demand remains reconstructable; +- a scoped `tools/result` observer as the commit point: it promotes a staged value only when that same execution's immutable, JSON-safe authoritative result after the complete pre-execute → guards → execute → post-execute pipeline succeeds. For a Code Mode SDK sub-dispatch, the child's opaque `parent` token matches the enclosing `run_code` execution's registry-assigned `token`, so promotion waits for that outer final result without exposing its live object; a runtime failure or post-policy block discards the value. Execution-object identity prevents call-id reuse or another execution from reaching the stage; +- a scoped monotonic `tools.guard()` denial for every call arriving after capture. Guards run after the extensible pre-execute waterfall and cannot return allow, so terminal means terminal within the step regardless of listener order; +- a scoped `agent/turn-stop` terminal policy stopping the child's turn once its output is captured. It runs after ordinary continuation and steering folding, and its terminal state survives turn close and flush, so later listeners cannot leak steering into another step or turn; ordinary queued prompts remain intact. ### `depthOf(agent): number` diff --git a/packages/subagent/subagent-spawn/README.md b/packages/subagent/subagent-spawn/README.md index 132fd4d732..e133cb1e5b 100644 --- a/packages/subagent/subagent-spawn/README.md +++ b/packages/subagent/subagent-spawn/README.md @@ -6,11 +6,11 @@ The run mechanics live in the shared [`@deepseek-ai/dsh-subagent-inprocess`](../ ## What it does -`start(request)` delegates to `startInProcessRun(ctx, request, { providerName })` with no seed: a fresh child agent with the parent's `cwd`/`parentSession` lineage and (by default) the parent's model. See the [driver README](../subagent-inprocess/README.md) for the full lifecycle (depth check, one-shot drive, result read, dispose). +`start(request)` delegates to `startInProcessRun(ctx, request, {})` with no seed: a fresh child agent with the parent's `cwd`/`parentSession` lineage and (by default) the parent's model. The driver creates one run-owner fiber under `parent.ctx`; parent teardown, this provider's teardown, and manual disposal all converge there before child publication. See the [driver README](../subagent-inprocess/README.md) for the full lifecycle (depth check, one-shot drive, result read, dispose). ## Capabilities -`{ outputSchema: true, depthLimit: true, toolFilter: true, persona: true }`. It constructs the child, so it enforces a recursion cap and composes the child's persona, global-tool restriction, and [structured runtime](../subagent-inprocess/README.md) inside the agent-creation setup window. This backend registers nothing at apply. +`{ outputSchema: true, depthLimit: true, toolFilter: true, persona: true }`. It constructs the child, so it enforces a recursion cap and composes the child's persona, global-tool restriction, and [structured runtime](../subagent-inprocess/README.md) inside the agent-creation setup window. At apply it registers this one named provider on `ctx.subagents`; per-run contributions belong to each child's scope. ## Config From 172005e0e6de86dca7649cad0c188298af48339c Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 23:22:57 +0800 Subject: [PATCH 192/232] fix(scope): align merged agent event contracts --- .../2026-07-08-agent-scope-contexts.md | 18 +++++++---- .../core/agent-core/tests/agent-core.spec.ts | 9 +++--- .../agent-loop/tests/interception.spec.ts | 30 +++++++++++++++++++ .../skill/tool-skill/tests/tool-skill.spec.ts | 10 ++++--- packages/ui/acp-agent/package.json | 1 + packages/ui/acp-agent/tests/acp-agent.spec.ts | 8 +++-- packages/ui/acp-agent/tsconfig.json | 3 ++ .../ui/stdio-agent/tests/stdio-agent.spec.ts | 9 +++--- pnpm-lock.yaml | 3 ++ 9 files changed, 70 insertions(+), 21 deletions(-) diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index f5a4cb4b24..b92896c2b8 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -191,7 +191,7 @@ Scoped registration is incomplete unless behavior follows the same boundary. An The dispatch receiver carries the operation's scope key. Its filter admits an unscoped listener or a listener registered through the matching scoped context, while a subject-less dispatch admits unscoped listeners only. Cordis's explicit `{ global: true }` listener option remains the intentional bypass for infrastructure that must observe every dispatch. -Registry-membership notifications remain unfiltered. Events such as `tools/change`, `system-prompt/change`, and `subagent/provider-*` describe shared registry state rather than one agent's activity, so a scoped subscriber still observes those global changes. +Registry-membership notifications remain unfiltered. Events such as `tools/change`, `system-prompt/change`, `skill/provider-*`, and `subagent/provider-*` describe shared registry state rather than one agent's activity, so a scoped subscriber still observes those global changes. ### Each event family derives its key from its real subject @@ -200,6 +200,7 @@ The operation being described determines the key; callers cannot attach an unrel | Event family | Scope source | |---|---| | `agent/*`, including `agent/turn-stop` | The event's agent | +| `approval/request` | `ApprovalRequest.agent` | | `tools/pre-execute`, `tools/execute`, `tools/post-execute`, `tools/result` | `ToolExecution.agent`, or no key for an agent-less call | | `system-prompt/assemble` | `AssembleContext.scope` | | `session/created`, `session/event`, `session/flush` | The owner scope captured when the session enters the store | @@ -427,7 +428,7 @@ prepareExecution(input): `ctx.tools.guard()` installs a synchronous global or scope-specific guard after the extensible `tools/pre-execute` waterfall and before dispatch. A guard returns a denial reason or `undefined`; it has no allow result. -This one-way result makes the boundary monotonic. Pre-execution hooks can still compose ordinary allow, deny, and ask decisions, but no listener ordering can convert a guard denial back into dispatched work. A denied call still continues through result transformation and final observation as an error outcome. +This one-way result makes the boundary monotonic. Pre-execution hooks can still compose ordinary allow, deny, and ask decisions; an ask resolves through the optional `ctx.approval` seam, where only `allowed-once` becomes allow and an absent channel or any non-grant becomes deny before guards run. No listener ordering can convert a guard denial back into dispatched work. A denied call still continues through result transformation and final observation as an error outcome. ### `tools/result` observes the authoritative live outcome @@ -450,11 +451,16 @@ execute(input): return result try: - ordinaryDecision = await tools/pre-execute(execution) - if ordinaryDecision allows: + gate = await tools/pre-execute(execution) + decision = gate + if gate asks: + decision = await resolveWithApproval(gate, execution.agent) + # approval absence and every non-grant resolve to deny + + if decision allows: denial = firstRegisteredGuardDenial(execution) else: - denial = ordinaryDecision.denial + denial = decision.denial if denial exists: result = errorResult(denial) @@ -612,7 +618,7 @@ Scope mistakes are fail-open if they merely omit a carrier, so the implementatio ### Type markers cover every scoped event declaration -Scoped agent, tool, prompt, session, and subagent lifecycle events declare a `Scoped` receiver. TypeScript therefore rejects a bare subject at typed dispatch sites, including the `subagent/start` and `subagent/end` paths whose scope is the delegating parent. +Scoped agent, approval, tool, prompt, session, and subagent lifecycle events declare a `Scoped` receiver. TypeScript therefore rejects a bare subject at typed dispatch sites, including the `subagent/start` and `subagent/end` paths whose scope is the delegating parent. The marker is compile-time only. JavaScript callers, casts, and direct use of Cordis's dispatch APIs can bypass it, which is why the runtime checks remain necessary. diff --git a/packages/core/agent-core/tests/agent-core.spec.ts b/packages/core/agent-core/tests/agent-core.spec.ts index fb1bc7e1bd..855bb28d49 100644 --- a/packages/core/agent-core/tests/agent-core.spec.ts +++ b/packages/core/agent-core/tests/agent-core.spec.ts @@ -6,14 +6,15 @@ import { Context } from 'cordis' import Loader from '@cordisjs/plugin-loader' import { TOOL_ORDER_REST } from '@deepseek-ai/dsh-system-prompt' import * as agentCore from '../src/index.ts' -import { AgentId } from '@deepseek-ai/dsh-agent' +import { AgentId, agentEvents, type Agent } from '@deepseek-ai/dsh-agent' import type { Message } from '@deepseek-ai/dsh-llm' async function composePrefix(ctx: Context, cwd: string): Promise { + const agent = { session: { header: { cwd } } } as unknown as Agent const empty: Message[] = [] - return await ctx.waterfall( - 'agent/session-prefix', { session: { header: { cwd } } } as never, - empty, new AbortController().signal, () => Promise.resolve(empty), + return await agentEvents(ctx, agent).waterfall( + 'agent/session-prefix', empty, new AbortController().signal, + () => Promise.resolve(empty), ) } diff --git a/packages/core/agent-loop/tests/interception.spec.ts b/packages/core/agent-loop/tests/interception.spec.ts index bab2ae6ea1..d4ec6312ba 100644 --- a/packages/core/agent-loop/tests/interception.spec.ts +++ b/packages/core/agent-loop/tests/interception.spec.ts @@ -311,6 +311,36 @@ describe('agent/session-start', () => { }) describe('agent/session-prefix', () => { + it('dispatches to global and matching agent-scope listeners only', async () => { + const adapter = new MockAdapter([textResponse('a done'), textResponse('b done')]) + const ctx = await harness(adapter) + const agentA = ctx.agentLoop.create(AgentId('prefix-a'), { model: 'mock' }) + const agentB = ctx.agentLoop.create(AgentId('prefix-b'), { model: 'mock' }) + const seen: string[] = [] + ctx.on('agent/session-prefix', async (agent, _prefix, _signal, next) => { + seen.push(`global:${agent.id}`) + return next() + }) + agentA.ctx.on('agent/session-prefix', async (agent, _prefix, _signal, next) => { + seen.push(`a:${agent.id}`) + return next() + }) + agentB.ctx.on('agent/session-prefix', async (agent, _prefix, _signal, next) => { + seen.push(`b:${agent.id}`) + return next() + }) + + send(agentA, 'run a') + await waitForIdle(ctx, agentA) + send(agentB, 'run b') + await waitForIdle(ctx, agentB) + + expect(seen).toEqual([ + 'global:prefix-a', 'a:prefix-a', + 'global:prefix-b', 'b:prefix-b', + ]) + }) + it('composes once per loop instance and fronts every request; the header records it; history stays untouched', async () => { const adapter = new MockAdapter([ toolCallResponse('c1', 'echo', { text: 'ping' }), diff --git a/packages/skill/tool-skill/tests/tool-skill.spec.ts b/packages/skill/tool-skill/tests/tool-skill.spec.ts index c7b843258c..ccfd795144 100644 --- a/packages/skill/tool-skill/tests/tool-skill.spec.ts +++ b/packages/skill/tool-skill/tests/tool-skill.spec.ts @@ -6,6 +6,7 @@ import { Context } from 'cordis' import { CallId, type Message } from '@deepseek-ai/dsh-llm' import SystemPrompt, { renderPrompt } from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' +import { agentEvents, type Agent } from '@deepseek-ai/dsh-agent' import SkillService from '@deepseek-ai/dsh-skill' import * as SkillLocal from '@deepseek-ai/dsh-skill-local' import * as toolSkill from '@deepseek-ai/dsh-tool-skill' @@ -30,14 +31,15 @@ async function setup(home: string, config: toolSkill.Config = {}): Promise { + const agent = agentForCwd(cwd) const empty: Message[] = [] - return await ctx.waterfall( - 'agent/session-prefix', agentForCwd(cwd), empty, signal, + return await agentEvents(ctx, agent).waterfall( + 'agent/session-prefix', empty, signal, () => Promise.resolve(empty), ) } diff --git a/packages/ui/acp-agent/package.json b/packages/ui/acp-agent/package.json index b6d59c9467..987ddb6c13 100644 --- a/packages/ui/acp-agent/package.json +++ b/packages/ui/acp-agent/package.json @@ -46,6 +46,7 @@ "@cordisjs/plugin-loader": "workspace:^", "@deepseek-ai/dsh-app-boot": "workspace:^", "@deepseek-ai/dsh-acp": "workspace:^", + "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-agent-core": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", diff --git a/packages/ui/acp-agent/tests/acp-agent.spec.ts b/packages/ui/acp-agent/tests/acp-agent.spec.ts index 47cc399dfc..537155429c 100644 --- a/packages/ui/acp-agent/tests/acp-agent.spec.ts +++ b/packages/ui/acp-agent/tests/acp-agent.spec.ts @@ -4,6 +4,7 @@ import { join } from 'node:path' import { tmpdir } from 'node:os' import { Context } from 'cordis' import Loader from '@cordisjs/plugin-loader' +import { agentEvents, type Agent } from '@deepseek-ai/dsh-agent' import { TOOL_ORDER_REST } from '@deepseek-ai/dsh-system-prompt' import type { Message } from '@deepseek-ai/dsh-llm' import * as acpAgent from '../src/index.ts' @@ -36,10 +37,11 @@ async function isolatedSkillsConfig(catalogDescriptionMaxLength?: number): Promi } async function composePrefix(ctx: Context): Promise { + const agent = { session: { header: { cwd: '/tmp' } } } as unknown as Agent const empty: Message[] = [] - return await ctx.waterfall( - 'agent/session-prefix', { session: { header: { cwd: '/tmp' } } } as never, - empty, new AbortController().signal, () => Promise.resolve(empty), + return await agentEvents(ctx, agent).waterfall( + 'agent/session-prefix', empty, new AbortController().signal, + () => Promise.resolve(empty), ) } diff --git a/packages/ui/acp-agent/tsconfig.json b/packages/ui/acp-agent/tsconfig.json index 13009a2e5c..5eb1c62282 100644 --- a/packages/ui/acp-agent/tsconfig.json +++ b/packages/ui/acp-agent/tsconfig.json @@ -23,6 +23,9 @@ { "path": "../acp" }, + { + "path": "../../core/agent" + }, { "path": "../../core/agent-core" }, diff --git a/packages/ui/stdio-agent/tests/stdio-agent.spec.ts b/packages/ui/stdio-agent/tests/stdio-agent.spec.ts index c08115526f..0668d25fb0 100644 --- a/packages/ui/stdio-agent/tests/stdio-agent.spec.ts +++ b/packages/ui/stdio-agent/tests/stdio-agent.spec.ts @@ -4,7 +4,7 @@ import { join } from 'node:path' import { tmpdir } from 'node:os' import { Context } from 'cordis' import Loader from '@cordisjs/plugin-loader' -import { AgentId } from '@deepseek-ai/dsh-agent' +import { AgentId, agentEvents, type Agent } from '@deepseek-ai/dsh-agent' import type { Message } from '@deepseek-ai/dsh-llm' import { TOOL_ORDER_REST } from '@deepseek-ai/dsh-system-prompt' import * as stdioAgent from '../src/index.ts' @@ -43,10 +43,11 @@ async function isolatedSkillsConfig(catalogDescriptionMaxLength?: number): Promi } async function composePrefix(ctx: Context): Promise { + const agent = { session: { header: { cwd: '/tmp' } } } as unknown as Agent const empty: Message[] = [] - return await ctx.waterfall( - 'agent/session-prefix', { session: { header: { cwd: '/tmp' } } } as never, - empty, new AbortController().signal, () => Promise.resolve(empty), + return await agentEvents(ctx, agent).waterfall( + 'agent/session-prefix', empty, new AbortController().signal, + () => Promise.resolve(empty), ) } diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 018c439824..aace53a37e 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -1243,6 +1243,9 @@ importers: '@deepseek-ai/dsh-acp': specifier: workspace:^ version: link:../acp + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../../core/agent '@deepseek-ai/dsh-agent-core': specifier: workspace:^ version: link:../../core/agent-core From cf255eebb168e3dcd331dedfcd513d3f28cb45fd Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 23:41:37 +0800 Subject: [PATCH 193/232] fix(scope): harden merged tool and skill boundaries --- docs/cordis-catalog/services.md | 4 +- .../cordis/tool-cordis/src/api-catalog.ts | 4 +- packages/core/tools/README.md | 2 +- packages/core/tools/src/index.ts | 44 +++++++++++- packages/core/tools/tests/tools.spec.ts | 60 ++++++++++++++++ packages/skill/skill/README.md | 6 +- packages/skill/skill/src/index.ts | 49 ++++++++----- packages/skill/skill/tests/skill.spec.ts | 68 +++++++++++++++++-- packages/skill/tool-skill/README.md | 2 +- packages/skill/tool-skill/package.json | 1 + packages/skill/tool-skill/src/index.ts | 31 ++++++--- .../skill/tool-skill/tests/tool-skill.spec.ts | 50 +++++++++++++- packages/skill/tool-skill/tsconfig.json | 1 + pnpm-lock.yaml | 3 + 14 files changed, 283 insertions(+), 42 deletions(-) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index ef4a30a3c3..1dad87a861 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -227,8 +227,8 @@ Source: [`packages/core/session/src/index.ts:427`](../../packages/core/session/s Registry of skill providers. It merges provider catalogs with stable first-wins duplicate handling, exposes sorted model-visible summaries, and loads full skill bodies on demand. ```ts cordis-catalog -registerProvider(provider: SkillProvider): () => void -register(skill: SkillRegistration): () => void +registerProvider(provider: SkillProvider): () => Promise | void +register(skill: SkillRegistration): () => Promise | void async list(options: SkillLookupOptions = {}): Promise async get(name: string, options: SkillLookupOptions = {}): Promise ``` diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts index fe04ceb610..57390710f8 100644 --- a/packages/cordis/tool-cordis/src/api-catalog.ts +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -169,8 +169,8 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ key: 'skills', summary: 'Registry of skill providers.', methods: [ - 'registerProvider(provider: SkillProvider): () => void', - 'register(skill: SkillRegistration): () => void', + 'registerProvider(provider: SkillProvider): () => Promise | void', + 'register(skill: SkillRegistration): () => Promise | void', 'async list(options: SkillLookupOptions = {}): Promise', 'async get(name: string, options: SkillLookupOptions = {}): Promise', ], diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index d8a3ec08e5..2a678408e0 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -39,7 +39,7 @@ The live registry pipeline has three transformable waterfalls followed by the ow - `ToolExecutionToken` — a frozen, property-free identity value assigned by the registry. It supports equality correlation only and exposes no live outer execution state. - `ToolExecution` — the pipeline-owned call: immutable `{ token, callId, name, arguments, agent?, parent? }` identity plus optional operational `signal`, which an around wrapper may add, replace, remove, and restore. A nested call's `parent` is a `ToolExecutionToken`, not an execution object. - `ToolExecutionResult` — losslessly JSON-serializable outcome: `{ callId, content, isError, error?, additionalContext?, meta? }`. The registry validates the complete post-policy value before final observation. On failure with a `HarnessError`, `error: { name, code }` carries the structured failure class alongside the model-facing text (the loop forwards it onto the `tool/result` session event for retry/sandbox plugins and replay). `additionalContext` (a `HookContext`) ferries any `tools/post-execute` context up to the loop, which buffers it and appends it as a `context/message` after all `tool/result`s in the step. `meta` is the tool's opaque presentation payload from a successful `execute` (the object return form); the loop forwards it onto the `tool/result` session event for result-card rendering. -- `PreToolDecision` — `{kind:'allow'}` | `{kind:'deny', reason}` | `{kind:'ask', reason?}`. Input rewrite (changing `arguments`) is deliberately NOT offered (it would desync the pre-execution audit/history/UI from what ran — its own proposed RFC); `ask` is serviced by [`ctx.approval`](../../ui/user-approval/README.md) when a deployment mounts it (`allowed-once` proceeds to dispatch; `rejected`/`cancelled`/`unavailable` deny with distinct reasons) and degrades to `deny` when none is mounted or the execution carries no agent. +- `PreToolDecision` — `{kind:'allow'}` | `{kind:'deny', reason}` | `{kind:'ask', reason?}`. The registry validates this exact union at runtime: a JavaScript/casted value with an unknown kind, a malformed reason, or extra fields fails closed as an `isError`; the tool body does not run and final observers still receive one result. Input rewrite (changing `arguments`) is deliberately NOT offered (it would desync the pre-execution audit/history/UI from what ran — its own proposed RFC); `ask` is serviced by [`ctx.approval`](../../ui/user-approval/README.md) when a deployment mounts it (`allowed-once` proceeds to dispatch; `rejected`/`cancelled`/`unavailable` deny with distinct reasons) and degrades to `deny` when none is mounted or the execution carries no agent. - `PostToolDecision` — `{kind:'accept', content?, additionalContext?}` (keep the call successful, optionally replacing the model-facing content) | `{kind:'block', feedback, additionalContext?}` (turn it into an `isError` whose content is the corrective feedback). Output replacement is clean because `tool/result` is logged AFTER `execute()` returns. - `ToolGuard` — `(execution) => string | undefined`; the returned string is a final monotonic denial reason evaluated after the reorderable pre-execute waterfall and before dispatch. - `ToolCallView` / `ToolResultView` — provider-neutral `card`-tagged render intents a tool returns from `presentCall` / `presentResult` to own how a UI renders ITS calls (see "Tool-owned UI presentation"). diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index 66dab9e2bd..71dd465dd6 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -91,6 +91,9 @@ declare module 'cordis' { * tool body never runs. Input rewrite is deliberately NOT offered here (see * {@link PreToolDecision}); `ask` is serviced by the `ctx.approval` seam * when one is mounted, and degrades to deny otherwise. + * The returned union is validated as an exact runtime shape before approval + * or guards run; a malformed JavaScript/casted decision fails closed as an + * `isError` result and the tool body never runs. * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`) keys the carrier by `exec.agent`: a * listener registered through `agent.ctx` fires only for that agent's * calls, while a plain plugin listener fires for every call (including @@ -908,6 +911,8 @@ export class ToolRegistry extends Service { * {@link HarnessError} surfaces its `{ name, code }` on the result. Before * the final observe-only notification, the authoritative outcome must survive * a lossless JSON round trip; an invalid outcome is normalized to an error. + * A malformed runtime/casted `tools/pre-execute` decision likewise normalizes + * to an error before approval, guards, or the tool body. * Caller-owned arguments must survive lossless-JSON validation before and * after cloning; a violation normalizes to an error before policy or dispatch. * @param exec - the single-use call input; its identity is snapshotted and @@ -1002,10 +1007,10 @@ export class ToolRegistry extends Service { // carrier keys dispatch by exec.agent, so an `agent.ctx` listener gates only // its own agent's calls (agent-less calls are subject-less). const carrier = scopeTarget(this, exec.agent) - const gate = await this.ctx.waterfall( + const gate = this.snapshotPreDecision(await this.ctx.waterfall( carrier, 'tools/pre-execute', exec, () => Promise.resolve({ kind: 'allow' }), - ) + )) const decision = gate.kind === 'ask' ? await this.serviceAsk(exec, gate) : gate const denialReason = decision.kind === 'allow' ? this.guardReason(exec) @@ -1055,6 +1060,41 @@ export class ToolRegistry extends Service { return await this.postExecute(exec, result) } + /** Validate and detach the extensible gate's decision before any grant can dispatch. */ + private snapshotPreDecision(value: unknown): PreToolDecision { + if (typeof value !== 'object' || value === null || Array.isArray(value)) { + throw new TypeError('tools/pre-execute must return a PreToolDecision object') + } + const decision = value as { kind?: unknown; reason?: unknown } + const keys = Reflect.ownKeys(decision) + const hasExactKeys = (...expected: string[]): boolean => + keys.length === expected.length && expected.every(key => Object.hasOwn(decision, key)) + switch (decision.kind) { + case 'allow': + if (!hasExactKeys('kind')) { + throw new TypeError('tools/pre-execute allow decision must contain only kind') + } + return { kind: 'allow' } + case 'deny': { + const reason = decision.reason + if (!hasExactKeys('kind', 'reason') || typeof reason !== 'string') { + throw new TypeError('tools/pre-execute deny decision must contain only kind and a string reason') + } + return { kind: 'deny', reason } + } + case 'ask': { + const reason = decision.reason + if (!(hasExactKeys('kind') || hasExactKeys('kind', 'reason')) + || (reason !== undefined && typeof reason !== 'string')) { + throw new TypeError('tools/pre-execute ask decision must contain only kind and an optional string reason') + } + return { kind: 'ask', ...reason !== undefined ? { reason } : {} } + } + default: + throw new TypeError('tools/pre-execute must return an allow, deny, or ask decision') + } + } + /** Notify final-result observers without giving them a mutation/error channel into the outcome. */ private async notifyResult(exec: ToolExecution, result: ToolExecutionResult): Promise { // The pipeline is over: freeze the remaining mutable signal slot so every diff --git a/packages/core/tools/tests/tools.spec.ts b/packages/core/tools/tests/tools.spec.ts index d1c454738d..deb53b7dc7 100644 --- a/packages/core/tools/tests/tools.spec.ts +++ b/packages/core/tools/tests/tools.spec.ts @@ -229,6 +229,66 @@ describe('ToolRegistry', () => { expect(result.content[0]).toMatchObject({ text: 'Error: denied by policy' }) }) + it.each([ + { + name: 'non-object decision', + replacement: null, + message: 'tools/pre-execute must return a PreToolDecision object', + }, + { + name: 'unknown decision kind', + replacement: { kind: 'permit' }, + message: 'tools/pre-execute must return an allow, deny, or ask decision', + }, + { + name: 'allow decision carrying extra fields', + replacement: { kind: 'allow', reason: 'smuggled' }, + message: 'tools/pre-execute allow decision must contain only kind', + }, + { + name: 'deny decision without a reason', + replacement: { kind: 'deny' }, + message: 'tools/pre-execute deny decision must contain only kind and a string reason', + }, + { + name: 'deny decision with a non-string reason', + replacement: { kind: 'deny', reason: 42 }, + message: 'tools/pre-execute deny decision must contain only kind and a string reason', + }, + { + name: 'ask decision with a non-string reason', + replacement: { kind: 'ask', reason: true }, + message: 'tools/pre-execute ask decision must contain only kind and an optional string reason', + }, + { + name: 'ask decision carrying extra fields', + replacement: { kind: 'ask', cache: true }, + message: 'tools/pre-execute ask decision must contain only kind and an optional string reason', + }, + ])('fails closed on a malformed tools/pre-execute $name', async ({ replacement, message }) => { + const ctx = await setup() + let bodyCalls = 0 + const observed: ToolExecutionResult[] = [] + ctx.tools.register({ + ...echoTool, + async execute() { + bodyCalls += 1 + return [] + }, + }) + ctx.on('tools/pre-execute', async () => replacement as unknown as PreToolDecision) + ctx.on('tools/result', (_exec, result) => { observed.push(result) }) + + const result = await ctx.tools.execute({ + callId: CallId('malformed-pre'), name: 'echo', arguments: {}, + }) + + expect(result.isError).toBe(true) + expect(result.content[0]).toMatchObject({ text: `Error: ${message}` }) + expect(bodyCalls).toBe(0) + expect(observed).toEqual([result]) + }) + it('rejects a JavaScript guard that returns an async/non-string decision', async () => { const ctx = await setup() let bodyCalls = 0 diff --git a/packages/skill/skill/README.md b/packages/skill/skill/README.md index 98f787dbc7..33d16e1b69 100644 --- a/packages/skill/skill/README.md +++ b/packages/skill/skill/README.md @@ -8,10 +8,10 @@ This package owns the `ctx.skills` interface. It does not know whether skills co ### Public API -- `ctx.skills.registerProvider(provider): () => void` Registers a provider by unique `provider.name`. Duplicate provider names throw, and `runtime` is reserved for `ctx.skills.register(...)`. The registration is effect-scoped and HMR-safe. +- `ctx.skills.registerProvider(provider): () => Promise | void` Registers a provider by unique `provider.name`. Duplicate provider names throw, and `runtime` is reserved for `ctx.skills.register(...)`. The registry snapshots the name and callback identities at registration, so replacing those fields later cannot change lookup or HMR cleanup; callbacks remain bound to the original provider object and can still read its mutable state. The registration is effect-scoped and HMR-safe, and the exact Cordis disposer supports ordered composite teardown. - `ctx.skills.list({ cwd?, signal? })` Returns model-invocable skill summaries for the current workspace, merged across providers and sorted by name. - `ctx.skills.get(name, { cwd?, signal? })` Returns the full winning skill, including disabled-for-model skills. -- `ctx.skills.register(skill): () => void` Registers a runtime embedded skill. Same-name runtime registrations are first-wins: a duplicate logs a warning and gets a no-op disposer. +- `ctx.skills.register(skill): () => Promise | void` Registers a runtime embedded skill. Same-name runtime registrations are first-wins: a duplicate logs a warning and gets a no-op disposer. Successful registrations return the exact Cordis disposer for ordered composite teardown. ### Config @@ -21,7 +21,7 @@ This package owns the `ctx.skills` interface. It does not know whether skills co ## Provider Contract -A provider registers synchronously from its `apply()` and returns `SkillCandidate[]` from `list(options)` when discovery is requested. Remote setup, authentication, and discovery belong in the awaited `list()` call rather than plugin registration. Providers should stop promptly when `options.signal` aborts; the registry also stops awaiting an uncooperative provider so agent cancellation cannot hang prefix composition. The provider later receives the winning candidate back in `get(candidate, options)`. The candidate's `locator` is opaque to the registry, so a local provider can store a file path while a remote provider can store a URL, id, or version token. +A provider registers synchronously from its `apply()` and returns `SkillCandidate[]` from `list(options)` when discovery is requested. Registration copies `name` and binds the current `list` and `get` methods once; replacing those fields on the caller-owned object later does not rewrite the live registry entry, and disposal always removes the original name. Remote setup, authentication, and discovery belong in the awaited `list()` call rather than plugin registration. Providers should stop promptly when `options.signal` aborts; the registry also stops awaiting an uncooperative provider so agent cancellation cannot hang prefix composition. The provider later receives the winning candidate back in `get(candidate, options)`. The candidate's `locator` is opaque to the registry, so a local provider can store a file path while a remote provider can store a URL, id, or version token. The registry validates candidate names, descriptions, ranks, and provider ownership. Candidate contract violations fail fast because the provider plugin is malformed; a provider `list()` rejection is treated as a transient source failure, logged, skipped for that request, and not cached. Only completed catalogs are cached, and a provider/runtime revision change during discovery discards the stale result and retries. Duplicate skill names are resolved first-wins by `rank`, provider registration order, then the provider's own local order. The final summary list is sorted by skill `name` for deterministic consumers. diff --git a/packages/skill/skill/src/index.ts b/packages/skill/skill/src/index.ts index 50a8b5d0d0..20ac717e9c 100644 --- a/packages/skill/skill/src/index.ts +++ b/packages/skill/skill/src/index.ts @@ -177,31 +177,46 @@ export class SkillService extends Service { * Register a skill provider synchronously during the provider plugin's * `apply()`. Throws if another provider already owns the same provider name, * including the reserved runtime provider name. Providers that need remote - * initialization do that work inside `list()` after registration. Effect- - * scoped and HMR-safe: disposing the caller's fiber unregisters the provider - * and invalidates cached catalogs. + * initialization do that work inside `list()` after registration. The name + * and callback identities are snapshotted at registration, so later + * replacement of those fields cannot change the registry key, dispatch + * callbacks, or HMR cleanup identity. Bound callbacks retain the original + * provider object as their receiver, so provider-owned mutable state remains + * live. Effect-scoped and HMR-safe: disposing the caller's fiber unregisters + * the provider and invalidates cached catalogs. * @param provider - the provider to register by `provider.name`. - * @returns a disposer that unregisters this provider. + * @returns the exact Cordis effect disposer that unregisters this provider; + * composite effects may yield it directly to preserve teardown ordering. */ - registerProvider(provider: SkillProvider): () => void { + registerProvider(provider: SkillProvider): () => Promise | void { + // Snapshot the registration contract before entering the effect. The + // callback binding preserves the historical method receiver while making + // replacement of `provider.list`/`provider.get` after registration inert. + // In particular, cleanup must never re-read caller-owned `provider.name`: + // an HMR host may mutate or reuse that object before its old fiber unloads. + const snapshot: SkillProvider = Object.freeze({ + name: provider.name, + list: provider.list.bind(provider), + get: provider.get.bind(provider), + }) const dispose = this.ctx.effect(function* (this: SkillService) { - if (provider.name === RUNTIME_PROVIDER) { + if (snapshot.name === RUNTIME_PROVIDER) { throw new Error(`"${RUNTIME_PROVIDER}" is reserved for runtime skill registrations`) } - if (this.providers.has(provider.name)) { - throw new Error(`a skill provider named "${provider.name}" is already registered`) + if (this.providers.has(snapshot.name)) { + throw new Error(`a skill provider named "${snapshot.name}" is already registered`) } - this.providers.set(provider.name, { provider, order: this.nextProviderOrder }) + this.providers.set(snapshot.name, { provider: snapshot, order: this.nextProviderOrder }) this.nextProviderOrder += 1 this.invalidateCache() yield () => { - this.providers.delete(provider.name) + this.providers.delete(snapshot.name) this.invalidateCache() - this.ctx.emit('skill/provider-removed', provider.name) + this.ctx.emit('skill/provider-removed', snapshot.name) } - this.ctx.emit('skill/provider-added', provider) + this.ctx.emit('skill/provider-added', snapshot) }.bind(this), 'skills.registerProvider()') - return () => void dispose() + return dispose } /** @@ -210,9 +225,11 @@ export class SkillService extends Service { * registrations are first-wins: a duplicate logs a warning and gets a no-op * disposer so it cannot remove the active contribution. * @param skill - the complete skill definition to expose for discovery. - * @returns a disposer that removes this runtime contribution and invalidates caches. + * @returns the exact Cordis effect disposer that removes this runtime + * contribution and invalidates caches; composite effects may yield it + * directly to preserve teardown ordering. */ - register(skill: SkillRegistration): () => void { + register(skill: SkillRegistration): () => Promise | void { const normalized = normalizeRuntimeSkill(skill) const existing = this.runtime.get(normalized.name) if (existing !== undefined) { @@ -229,7 +246,7 @@ export class SkillService extends Service { this.invalidateCache() } }.bind(this), 'skills.register()') - return () => void dispose() + return dispose } /** diff --git a/packages/skill/skill/tests/skill.spec.ts b/packages/skill/skill/tests/skill.spec.ts index 010d161039..e3b491f690 100644 --- a/packages/skill/skill/tests/skill.spec.ts +++ b/packages/skill/skill/tests/skill.spec.ts @@ -103,10 +103,68 @@ describe('SkillService registry', () => { }, })).toThrow('reserved') - disposeMemory() + await disposeMemory() expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['same-rank-skill', 'shadowed']) }) + it('snapshots a provider registration so caller mutation cannot corrupt HMR cleanup', async () => { + const ctx = new Context() + await ctx.plugin(SkillService) + const candidate: SkillCandidate = { + name: 'stable-skill', + description: 'Stable skill', + provider: 'stable-provider', + source: 'test', + rank: 1, + locator: 'original', + } + const originalList = vi.fn(() => Promise.resolve([candidate])) + const originalGet = vi.fn((listed: SkillCandidate) => Promise.resolve({ + ...listed, + content: 'Original body.', + })) + const provider: SkillProvider = { + name: 'stable-provider', + list: originalList, + get: originalGet, + } + const added: SkillProvider[] = [] + const removed: string[] = [] + ctx.on('skill/provider-added', (registered) => { added.push(registered) }) + ctx.on('skill/provider-removed', (name) => { removed.push(name) }) + const owner = await ctx.plugin({ + name: 'mutable-provider-owner', + inject: ['skills'], + apply(pluginCtx: Context) { + pluginCtx.skills.registerProvider(provider) + }, + }) + + provider.name = 'mutated-provider' + const replacementList = vi.fn(() => Promise.resolve([])) + const replacementGet = vi.fn(() => Promise.resolve(undefined)) + provider.list = replacementList + provider.get = replacementGet + + expect(added).toHaveLength(1) + expect(added[0]).not.toBe(provider) + expect(added[0]?.name).toBe('stable-provider') + expect(Object.isFrozen(added[0])).toBe(true) + expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['stable-skill']) + expect((await ctx.skills.get('stable-skill'))?.content).toBe('Original body.') + expect(originalList).toHaveBeenCalledOnce() + expect(originalGet).toHaveBeenCalledOnce() + expect(replacementList).not.toHaveBeenCalled() + expect(replacementGet).not.toHaveBeenCalled() + + await owner.dispose() + expect(removed).toEqual(['stable-provider']) + expect(await ctx.skills.list()).toEqual([]) + const replacement = new MemoryProvider([]) + Object.defineProperty(replacement, 'name', { value: 'stable-provider' }) + expect(() => ctx.skills.registerProvider(replacement)).not.toThrow() + }) + it('validates provider candidates and invalid registry caps', async () => { const defaultedService = new SkillService(new Context()) expect(await defaultedService.list()).toEqual([]) @@ -196,7 +254,7 @@ describe('SkillService registry', () => { path: 'memory://runtime-skill', metadata: { owner: 'tests' }, }) - disposeRuntime() + await disposeRuntime() await ctx.skills.list({ cwd: '/tmp/first-cache-key' }) await ctx.skills.list({ cwd: '/tmp/second-cache-key' }) @@ -245,7 +303,7 @@ describe('SkillService registry', () => { const pending = ctx.skills.list() await started - dispose() + await dispose() release?.() expect(await pending).toEqual([]) @@ -336,9 +394,9 @@ describe('SkillService registry', () => { const disposeFirst = ctx.skills.register({ name: 'same-skill', description: 'First', source: 'runtime', content: 'first' }) const disposeSecond = ctx.skills.register({ name: 'same-skill', description: 'Second', source: 'runtime', content: 'second' }) - disposeSecond() + await disposeSecond() expect((await ctx.skills.get('same-skill'))?.description).toBe('First') - disposeFirst() + await disposeFirst() expect(await ctx.skills.get('same-skill')).toBeUndefined() }) }) diff --git a/packages/skill/tool-skill/README.md b/packages/skill/tool-skill/README.md index c55bc3693d..7e72f89000 100644 --- a/packages/skill/tool-skill/README.md +++ b/packages/skill/tool-skill/README.md @@ -6,7 +6,7 @@ Requires `ctx.tools` and `ctx.skills` (`inject: ['tools', 'skills']`). ## Session-prefix catalog -The plugin contributes one user-role `` catalog through `agent/session-prefix`. It resolves skills for the calling session's cwd, forwards the prefix abort signal to discovery, and lists only sorted `name` and `description` entries; skill bodies, paths, sources, providers, and `whenToUse` hints remain outside the catalog. The catalog is omitted when no model-invocable skills are available. +The plugin contributes one user-role `` catalog through `agent/session-prefix`. It resolves skills for the calling session's cwd, forwards the prefix abort signal to discovery, and lists only sorted `name` and `description` entries; skill bodies, paths, sources, providers, and `whenToUse` hints remain outside the catalog. The catalog is omitted when no model-invocable skills are available, and also when that agent's tool view restricts away the shipped `skill` tool or resolves a same-name scoped shadow instead. This exact-definition check keeps prompt guidance, the model-visible schema, and executable dispatch aligned. `catalogDescriptionMaxLength` controls normalized, XML-escaped catalog descriptions. Its default is `500` and values must be integers of at least `3`, which reserves room for a truncation ellipsis. The [session-prefix RFC](../../../docs/rfc/implemented/feature/2026-07-07-session-prefix.md) defines the request-only, header-logged lifecycle of this message. diff --git a/packages/skill/tool-skill/package.json b/packages/skill/tool-skill/package.json index f0d97eb3d8..bf7a77a49e 100644 --- a/packages/skill/tool-skill/package.json +++ b/packages/skill/tool-skill/package.json @@ -34,6 +34,7 @@ "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-scope": "workspace:^", "@deepseek-ai/dsh-skill": "workspace:^", "@deepseek-ai/dsh-skill-local": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", diff --git a/packages/skill/tool-skill/src/index.ts b/packages/skill/tool-skill/src/index.ts index dc3232a13f..39fa0253b4 100644 --- a/packages/skill/tool-skill/src/index.ts +++ b/packages/skill/tool-skill/src/index.ts @@ -26,18 +26,16 @@ export const Config: z = z.object({ catalogDescriptionMaxLength: z.number().default(DEFAULT_CATALOG_DESCRIPTION_MAX_LENGTH), }) -/** Register the session-prefix skill catalog and the model-facing skill loader. */ +/** + * Register the model-facing skill loader and its visibility-matched + * session-prefix catalog. The catalog is emitted only when the calling agent + * resolves this plugin's exact tool registration; a restriction or scoped + * same-name shadow therefore removes both the schema and its call guidance. + */ export function apply(ctx: Context, config: Config = {}): void { const catalogDescriptionMaxLength = config.catalogDescriptionMaxLength ?? DEFAULT_CATALOG_DESCRIPTION_MAX_LENGTH assertPositiveInteger('catalogDescriptionMaxLength', catalogDescriptionMaxLength, 3) - ctx.on('agent/session-prefix', async (agent, _prefix, signal, next): Promise => { - const skills = await ctx.skills.list({ cwd: agent.session.header.cwd, signal }) - const rest = await next() - if (skills.length === 0) return rest - return [renderCatalogMessage(skills, catalogDescriptionMaxLength), ...rest] - }) - const skillTool = defineTool({ name: 'skill', description: 'Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill.', @@ -62,6 +60,23 @@ export function apply(ctx: Context, config: Config = {}): void { }, }) ctx.tools.register(skillTool) + const registeredSkillTool = ctx.tools.get(skillTool.name) + /* v8 ignore next 3 -- register() publishes synchronously or throws; this guards future registry drift. */ + if (registeredSkillTool === undefined) { + throw new Error('dsh-tool-skill: registered skill tool is not visible in the global registry') + } + + // Register after the tool so reverse-order fiber teardown removes this + // guidance listener before its referenced tool. Exact definition identity is + // the shared truth for restrictions and scoped shadows: another tool merely + // named `skill` must not inherit this plugin's catalog or instructions. + ctx.on('agent/session-prefix', async (agent, _prefix, signal, next): Promise => { + if (ctx.tools.get(skillTool.name, agent) !== registeredSkillTool) return await next() + const skills = await ctx.skills.list({ cwd: agent.session.header.cwd, signal }) + const rest = await next() + if (skills.length === 0) return rest + return [renderCatalogMessage(skills, catalogDescriptionMaxLength), ...rest] + }) } function renderSkillContent(skill: SkillDefinition): string { diff --git a/packages/skill/tool-skill/tests/tool-skill.spec.ts b/packages/skill/tool-skill/tests/tool-skill.spec.ts index ccfd795144..cab7f4aa02 100644 --- a/packages/skill/tool-skill/tests/tool-skill.spec.ts +++ b/packages/skill/tool-skill/tests/tool-skill.spec.ts @@ -4,8 +4,9 @@ import { join } from 'node:path' import { tmpdir } from 'node:os' import { Context } from 'cordis' import { CallId, type Message } from '@deepseek-ai/dsh-llm' +import { createScope, type Scope } from '@deepseek-ai/dsh-scope' import SystemPrompt, { renderPrompt } from '@deepseek-ai/dsh-system-prompt' -import ToolRegistry from '@deepseek-ai/dsh-tools' +import ToolRegistry, { defineTool } from '@deepseek-ai/dsh-tools' import { agentEvents, type Agent } from '@deepseek-ai/dsh-agent' import SkillService from '@deepseek-ai/dsh-skill' import * as SkillLocal from '@deepseek-ai/dsh-skill-local' @@ -36,7 +37,10 @@ function agentForCwd(cwd: string): Agent { } async function composePrefix(ctx: Context, cwd: string, signal = new AbortController().signal): Promise { - const agent = agentForCwd(cwd) + return await composePrefixForAgent(ctx, agentForCwd(cwd), signal) +} + +async function composePrefixForAgent(ctx: Context, agent: Agent, signal = new AbortController().signal): Promise { const empty: Message[] = [] return await agentEvents(ctx, agent).waterfall( 'agent/session-prefix', empty, signal, @@ -44,6 +48,15 @@ async function composePrefix(ctx: Context, cwd: string, signal = new AbortContro ) } +async function mintAgentScope(ctx: Context, cwd: string): Promise<{ agent: Agent; scope: Scope }> { + const agent = agentForCwd(cwd) + let scope!: Scope + await ctx.plugin(Object.assign((inner: Context) => { scope = createScope(inner, agent) }, { + inject: ['tools'], + })) + return { agent, scope } +} + describe('dsh-tool-skill', () => { it('registers the skill tool schema and removes it on dispose', async () => { const ctx = new Context() @@ -154,6 +167,39 @@ describe('dsh-tool-skill', () => { expect(await composePrefix(ctx, '/workspace')).toEqual([]) }) + it('omits catalog guidance when the calling agent restricts away the shipped skill tool', async () => { + const home = await tempDir('tool-restricted-catalog') + const ctx = await setup(home) + ctx.skills.register({ name: 'listed-skill', description: 'Listed', source: 'runtime', content: 'body' }) + const { agent, scope } = await mintAgentScope(ctx, '/workspace') + scope.ctx.tools.restrict({ deny: ['skill'] }) + + expect(ctx.tools.get('skill', agent)).toBeUndefined() + expect(await composePrefixForAgent(ctx, agent)).toEqual([]) + expect(await composePrefix(ctx, '/workspace')).toHaveLength(1) + await scope.dispose() + }) + + it('does not attach shipped catalog guidance to a scoped same-name tool shadow', async () => { + const home = await tempDir('tool-shadowed-catalog') + const ctx = await setup(home) + ctx.skills.register({ name: 'listed-skill', description: 'Listed', source: 'runtime', content: 'body' }) + const { agent, scope } = await mintAgentScope(ctx, '/workspace') + scope.ctx.tools.register(defineTool({ + name: 'skill', + description: 'A scoped tool with unrelated semantics.', + parameters: {}, + execute() { + return Promise.resolve([{ type: 'text', text: 'shadow' }]) + }, + })) + + expect(ctx.tools.get('skill', agent)).not.toBe(ctx.tools.get('skill')) + expect(await composePrefixForAgent(ctx, agent)).toEqual([]) + expect(await composePrefix(ctx, '/workspace')).toHaveLength(1) + await scope.dispose() + }) + it('validates the catalog description cap', async () => { const home = await tempDir('tool-invalid-catalog-cap') const ctx = new Context() diff --git a/packages/skill/tool-skill/tsconfig.json b/packages/skill/tool-skill/tsconfig.json index 039fc641c0..52ebb8bf9d 100644 --- a/packages/skill/tool-skill/tsconfig.json +++ b/packages/skill/tool-skill/tsconfig.json @@ -9,6 +9,7 @@ { "path": "../../../vendor/cosmokit" }, { "path": "../../../vendor/cordis" }, { "path": "../../../vendor/schemastery" }, + { "path": "../../core/scope" }, { "path": "../../llm/llm" }, { "path": "../../core/agent" }, { "path": "../skill" }, diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index aace53a37e..68ec4e3183 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -822,6 +822,9 @@ importers: '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm + '@deepseek-ai/dsh-scope': + specifier: workspace:^ + version: link:../../core/scope '@deepseek-ai/dsh-skill': specifier: workspace:^ version: link:../skill From 06e42f439c95346aeb22e6451dbcd018f6240fee Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 23:42:52 +0800 Subject: [PATCH 194/232] docs: regenerate merged catalogs --- docs/config-catalog.md | 2 +- docs/cordis-catalog/events.md | 12 ++++++------ docs/cordis-catalog/services.md | 2 +- docs/event-producer-consumer.md | 10 +++++----- 4 files changed, 13 insertions(+), 13 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 238a739510..6e8bf080ac 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -988,7 +988,7 @@ export interface Config { export type ToolPresentationMode = 'native' | 'code' | 'both' ``` -Source: [`packages/core/tools/src/index.ts:406`](../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:409`](../packages/core/tools/src/index.ts) ## `@deepseek-ai/dsh-user-approval` diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index c72bbc9c82..cd1327a1d1 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -371,7 +371,7 @@ A tool was registered or unregistered, or a scoped restriction changed (the avai 'tools/change'(): void ``` -Source: [`packages/core/tools/src/index.ts:173`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:176`](../../packages/core/tools/src/index.ts) ### `tools/execute` — waterfall @@ -383,7 +383,7 @@ Around-dispatch waterfall wrapping the registry's core tool dispatch, between th Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:128`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:131`](../../packages/core/tools/src/index.ts) ### `tools/post-execute` — waterfall @@ -395,11 +395,11 @@ Waterfall AFTER a tool runs — where hook plugins inspect the result and accept Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:148`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:151`](../../packages/core/tools/src/index.ts) ### `tools/pre-execute` — waterfall -Waterfall BEFORE a tool runs — the gate where sandbox, permission, and hook plugins allow or deny a call (Claude Code's `PreToolUse`). Listeners receive `(exec, next)`: call `next()` to delegate to the default (allow), or return a PreToolDecision without calling `next()` to short-circuit. A `deny` skips dispatch and yields an `isError` result; the tool body never runs. Input rewrite is deliberately NOT offered here (see PreToolDecision); `ask` is serviced by the `ctx.approval` seam when one is mounted, and degrades to deny otherwise. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`) keys the carrier by `exec.agent`: a listener registered through `agent.ctx` fires only for that agent's calls, while a plain plugin listener fires for every call (including agent-less ones, which dispatch subject-less). +Waterfall BEFORE a tool runs — the gate where sandbox, permission, and hook plugins allow or deny a call (Claude Code's `PreToolUse`). Listeners receive `(exec, next)`: call `next()` to delegate to the default (allow), or return a PreToolDecision without calling `next()` to short-circuit. A `deny` skips dispatch and yields an `isError` result; the tool body never runs. Input rewrite is deliberately NOT offered here (see PreToolDecision); `ask` is serviced by the `ctx.approval` seam when one is mounted, and degrades to deny otherwise. The returned union is validated as an exact runtime shape before approval or guards run; a malformed JavaScript/casted decision fails closed as an `isError` result and the tool body never runs. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`) keys the carrier by `exec.agent`: a listener registered through `agent.ctx` fires only for that agent's calls, while a plain plugin listener fires for every call (including agent-less ones, which dispatch subject-less). ```ts cordis-catalog 'tools/pre-execute'(this: Scoped, exec: ToolExecution, next: () => Promise): Promise @@ -407,7 +407,7 @@ Waterfall BEFORE a tool runs — the gate where sandbox, permission, and hook pl Types: [ToolExecution](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:101`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:104`](../../packages/core/tools/src/index.ts) ### `tools/result` — parallel @@ -419,7 +419,7 @@ Awaited notification of the authoritative FINAL tool outcome, after the complete Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:163`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:166`](../../packages/core/tools/src/index.ts) ## `workflow/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 1dad87a861..b331e53fe3 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -281,7 +281,7 @@ async execute(exec: ToolExecutionInput): Promise Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecutionInput](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:478`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:481`](../../packages/core/tools/src/index.ts) ## `ctx.userInteraction` — `UserInteractionService` diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index fea5dce332..36cad3e3ad 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -36,11 +36,11 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:98`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:45`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | | `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:55`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | -| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:173`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | -| `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:128`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`timeout-policy`](../packages/timeout/timeout-policy) | -| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:148`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | -| `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:101`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `tools/result` | `parallel` | [`packages/core/tools/src/index.ts:163`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`events.dispatch`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | +| `tools/change` | `emit` | [`packages/core/tools/src/index.ts:176`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | +| `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:131`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`timeout-policy`](../packages/timeout/timeout-policy) | +| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:151`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | +| `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:104`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `tools/result` | `parallel` | [`packages/core/tools/src/index.ts:166`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`events.dispatch`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | `workflow/agent-end` | `emit` | [`packages/workflow/workflow/src/index.ts:96`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/agent-start` | `emit` | [`packages/workflow/workflow/src/index.ts:85`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/end` | `emit` | [`packages/workflow/workflow/src/index.ts:106`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | From e6c7522a75570b3945851e91713e7afc01193d4d Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 23:45:01 +0800 Subject: [PATCH 195/232] fix(agent-loop): nest config resume teardown --- packages/core/agent-loop/src/index.ts | 6 +++++- .../agent-loop/tests/config-session-id.spec.ts | 18 ++++++++++++++++++ 2 files changed, 23 insertions(+), 1 deletion(-) diff --git a/packages/core/agent-loop/src/index.ts b/packages/core/agent-loop/src/index.ts index c37cce6a1a..0b8879c2b7 100644 --- a/packages/core/agent-loop/src/index.ts +++ b/packages/core/agent-loop/src/index.ts @@ -120,7 +120,11 @@ export class AgentLoop extends Service implements AgentFactory { this.ctx.logger.warn(`agent "${id}": config-driven resume of "${resumeSessionId}" failed: ${String(error)}`) }) }) - return () => void fiber.dispose() + // Return the EXACT child-fiber disposer. Cordis moves a returned + // effect into this labeled owner's teardown tree by function + // identity; a wrapper would leave the child as a concurrent sibling + // and could discard its async quiescence promise. + return fiber.dispose }, `agentLoop.resume(${id})`) } else { this.create(id, options, cwd === undefined ? {} : { cwd }) diff --git a/packages/core/agent-loop/tests/config-session-id.spec.ts b/packages/core/agent-loop/tests/config-session-id.spec.ts index 97f04cbbca..07d6cd9e9b 100644 --- a/packages/core/agent-loop/tests/config-session-id.spec.ts +++ b/packages/core/agent-loop/tests/config-session-id.spec.ts @@ -24,6 +24,24 @@ function waitForIdle(ctx: Context, agent: ReactLoopAgent): Promise { } describe('config-driven session id', () => { + it('identity-nests the deferred resume fiber under its labeled owner effect', async () => { + const ctx = new Context() + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + const loopFiber = await ctx.plugin(AgentLoop, { + agents: [{ id: AgentId('main'), model: 'mock', resumeSessionId: SessionId('deferred') }], + }) + + const resumeEffect = loopFiber.getEffects().find(effect => effect.label === 'agentLoop.resume(main)') + expect(resumeEffect?.children.map(child => child.label)).toEqual(['ctx.plugin()']) + expect(loopFiber.getEffects().filter(effect => effect.label === 'ctx.plugin()')).toEqual([]) + + await loopFiber.dispose() + }) + it('config-driven create uses a fresh ${id}-session- per run (restart-safe)', async () => { const root = await mkdtemp(join(tmpdir(), 'dsh-cfg-session-')) dirs.push(root) From bac97a5b2e1ae105eaa3a50c3aa131f8ead02fbb Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 23:55:56 +0800 Subject: [PATCH 196/232] test(acp-snapshot): cover the delta-insert trailing-newline branch formatSystemPromptSnapshot's insert-join ternary had its already-newline- terminated arm unexercised (a delta whose insert ends in a blank line), failing the per-file 100% branch gate on suite.ts (99.24%). --- packages/support/acp-snapshot/tests/suite.spec.ts | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/packages/support/acp-snapshot/tests/suite.spec.ts b/packages/support/acp-snapshot/tests/suite.spec.ts index dc6b71ea00..d6e3e2b912 100644 --- a/packages/support/acp-snapshot/tests/suite.spec.ts +++ b/packages/support/acp-snapshot/tests/suite.spec.ts @@ -273,6 +273,12 @@ describe('formatSystemPromptSnapshot', () => { { keepStart: 1, keepEnd: 0, insert: ['new', 'lines'] }, ])).toBe('prompt\n\n\n\nnew\nlines\n') }) + + it('does not double the newline of a delta insert with a trailing blank line', () => { + expect(formatSystemPromptSnapshot('prompt\n', [ + { keepStart: 2, keepEnd: 1, insert: ['tail', ''] }, + ])).toBe('prompt\n\n\n\ntail\n') + }) }) describe('headerDeltaCount', () => { From 382c243e78893814cb751eaf0fc09b35caf4e65b Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sat, 11 Jul 2026 23:56:16 +0800 Subject: [PATCH 197/232] test(e2e): widen keyless boot-smoke kill budgets to 30s MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The keyless Loader-path smokes killed the child 10s after spawn, but a loaded CI e2e runner routinely needs longer just to boot the unbuilt tsx tree: on this branch's run the coding-agent smoke burned both retries and failed at 30s wall-clock, and the sibling smokes passed only on retry x2 (master's latest run shows the same near-misses). The budget guards against a HANG, not slowness — raise kill to 30s and the vitest test timeout to 45s so a slow boot no longer masquerades as one. --- .../tests/code-mode-keyless-smoke.e2e.ts | 6 +++--- examples/coding-agent/tests/keyless-smoke.e2e.ts | 6 +++--- examples/cordis-agent/tests/keyless-smoke.e2e.ts | 6 +++--- examples/echo-agent/tests/echo.e2e.ts | 12 ++++++------ 4 files changed, 15 insertions(+), 15 deletions(-) diff --git a/examples/coding-agent/tests/code-mode-keyless-smoke.e2e.ts b/examples/coding-agent/tests/code-mode-keyless-smoke.e2e.ts index 7894e9ff9f..6c0c6afd3a 100644 --- a/examples/coding-agent/tests/code-mode-keyless-smoke.e2e.ts +++ b/examples/coding-agent/tests/code-mode-keyless-smoke.e2e.ts @@ -67,8 +67,8 @@ async function bootAndEof(): Promise<{ stdout: string; code: number }> { const timer = setTimeout(() => { proc.kill('SIGKILL') - reject(new Error(`code-mode overlay did not exit within 10s. stdout:\n${stdout}\nstderr:\n${stderr}`)) - }, 10_000) + reject(new Error(`code-mode overlay did not exit within 30s. stdout:\n${stdout}\nstderr:\n${stderr}`)) + }, 30_000) proc.on('exit', (code) => { clearTimeout(timer) @@ -87,5 +87,5 @@ describe('code-mode overlay keyless smoke (real code-mode.cordis.yml via the Loa const { stdout, code } = await bootAndEof() expect(code).toBe(0) expect(stdout).toContain('code-mode agent ready.') - }, 15_000) + }, 45_000) }) diff --git a/examples/coding-agent/tests/keyless-smoke.e2e.ts b/examples/coding-agent/tests/keyless-smoke.e2e.ts index b4d73f4d90..219144e904 100644 --- a/examples/coding-agent/tests/keyless-smoke.e2e.ts +++ b/examples/coding-agent/tests/keyless-smoke.e2e.ts @@ -78,8 +78,8 @@ async function bootAndEof(): Promise<{ stdout: string; code: number }> { const timer = setTimeout(() => { proc.kill('SIGKILL') - reject(new Error(`coding-agent did not exit within 10s. stdout:\n${stdout}\nstderr:\n${stderr}`)) - }, 10_000) + reject(new Error(`coding-agent did not exit within 30s. stdout:\n${stdout}\nstderr:\n${stderr}`)) + }, 30_000) proc.on('exit', (code) => { clearTimeout(timer) @@ -98,5 +98,5 @@ describe('coding-agent keyless smoke (real cordis.yml via the Loader)', () => { const { stdout, code } = await bootAndEof() expect(code).toBe(0) expect(stdout).toContain('agent REPL ready.') - }, 15_000) + }, 45_000) }) diff --git a/examples/cordis-agent/tests/keyless-smoke.e2e.ts b/examples/cordis-agent/tests/keyless-smoke.e2e.ts index b37ea8d83e..1211b4dce5 100644 --- a/examples/cordis-agent/tests/keyless-smoke.e2e.ts +++ b/examples/cordis-agent/tests/keyless-smoke.e2e.ts @@ -70,8 +70,8 @@ async function bootAndEof(): Promise<{ stdout: string; code: number }> { const timer = setTimeout(() => { proc.kill('SIGKILL') - reject(new Error(`cordis-agent did not exit within 10s. stdout:\n${stdout}\nstderr:\n${stderr}`)) - }, 10_000) + reject(new Error(`cordis-agent did not exit within 30s. stdout:\n${stdout}\nstderr:\n${stderr}`)) + }, 30_000) proc.on('exit', (code) => { clearTimeout(timer) @@ -90,5 +90,5 @@ describe('cordis-agent keyless smoke (real cordis.yml via the Loader)', () => { const { stdout, code } = await bootAndEof() expect(code).toBe(0) expect(stdout).toContain('cordis-agent ready.') - }, 15_000) + }, 45_000) }) diff --git a/examples/echo-agent/tests/echo.e2e.ts b/examples/echo-agent/tests/echo.e2e.ts index b446b2b191..0a2bb36288 100644 --- a/examples/echo-agent/tests/echo.e2e.ts +++ b/examples/echo-agent/tests/echo.e2e.ts @@ -51,7 +51,7 @@ afterEach(async () => { /** * Boot echo-agent, write `lines` to its stdin, close stdin, and resolve with * the full stdout once the process exits (the stdio UI exits on EOF after the - * agent settles). Rejects on a non-zero exit or a 10s timeout. + * agent settles). Rejects on a non-zero exit or a 30s timeout. */ async function runEcho(lines: string[]): Promise<{ stdout: string; code: number }> { workdir = await mkdtemp(join(tmpdir(), 'echo-smoke-')) @@ -84,8 +84,8 @@ async function runEcho(lines: string[]): Promise<{ stdout: string; code: number const timer = setTimeout(() => { proc.kill('SIGKILL') - reject(new Error(`echo-agent did not exit within 10s. stdout:\n${stdout}\nstderr:\n${stderr}`)) - }, 10_000) + reject(new Error(`echo-agent did not exit within 30s. stdout:\n${stdout}\nstderr:\n${stderr}`)) + }, 30_000) proc.on('exit', (code) => { clearTimeout(timer) @@ -105,19 +105,19 @@ describe('echo-agent keyless smoke (real cordis.yml via the Loader)', () => { const { stdout, code } = await runEcho([]) expect(code).toBe(0) expect(stdout).toContain('echo-agent ready.') - }, 15_000) + }, 45_000) it('runs the echo tool round-trip for an "echo …" line', async () => { const { stdout } = await runEcho(['echo hello world']) // mock-llm.ts emits a tool-call for the echo tool; echo-tool.ts uppercases. expect(stdout).toContain('[tool call] echo') expect(stdout).toContain('[tool result] ECHO: HELLO WORLD') - }, 15_000) + }, 45_000) it('streams a direct canned reply for a non-echo line', async () => { const { stdout } = await runEcho(['just chatting']) // The direct-response branch of mock-llm.ts quotes the input back. expect(stdout).toContain('just chatting') expect(stdout).not.toContain('[tool call]') - }, 15_000) + }, 45_000) }) From 3529b3c166955d9bc111a7d7d74873b18b531870 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 00:31:46 +0800 Subject: [PATCH 198/232] fix(scope): close final ownership races Drain idle injection flushes before agent teardown, snapshot approval and subagent provider inputs, and gate subagent lifecycle events on real child readiness. Align the RFCs and generated contracts with the hardened behavior. --- docs/config-catalog.md | 4 +- docs/cordis-catalog/events.md | 38 ++--- docs/cordis-catalog/services.md | 6 +- docs/core-data-structures/subagent.md | 7 +- docs/core-data-structures/tools.md | 2 +- docs/event-producer-consumer.md | 32 ++-- docs/persistence-catalog.md | 6 +- .../2026-07-08-agent-scope-contexts.md | 25 ++- .../feature/2026-06-15-code-mode.md | 10 +- .../2026-06-21-subagent-capability-seam.md | 2 +- .../feature/2026-06-30-hook-bridges.md | 9 +- .../feature/2026-06-30-interception-seams.md | 4 +- .../2026-06-30-subagent-observe-enrich.md | 2 +- .../feature/2026-07-06-approval-seam.md | 36 ++--- .../cordis/tool-cordis/src/api-catalog.ts | 6 +- packages/core/agent-loop/README.md | 2 +- packages/core/agent-loop/src/agent.ts | 96 ++++++++---- packages/core/agent-loop/src/index.ts | 14 +- packages/core/agent-loop/src/loop.ts | 2 +- packages/core/agent-loop/tests/agent.spec.ts | 9 +- .../agent-loop/tests/scope-lifecycle.spec.ts | 31 ++++ packages/core/agent/README.md | 2 +- packages/core/agent/src/index.ts | 11 +- packages/core/agent/src/types.ts | 6 +- packages/hooks/hooks-claude/README.md | 2 +- packages/subagent/subagent-acp/README.md | 4 +- packages/subagent/subagent-acp/src/run.ts | 97 +++++++----- packages/subagent/subagent-fork/README.md | 2 +- .../subagent-fork/tests/subagent-fork.spec.ts | 17 ++ .../subagent/subagent-inprocess/README.md | 4 +- .../subagent/subagent-inprocess/src/index.ts | 15 +- packages/subagent/subagent-spawn/README.md | 2 +- .../tests/subagent-spawn.spec.ts | 19 +++ packages/subagent/subagent/README.md | 10 +- packages/subagent/subagent/src/index.ts | 148 ++++++++++++------ packages/subagent/subagent/src/types.ts | 23 ++- .../subagent/subagent/tests/service.spec.ts | 140 ++++++++++++++++- .../tool-subagent/tests/tool-subagent.spec.ts | 10 ++ packages/support/subagent-mock/src/index.ts | 3 + packages/ui/user-approval/README.md | 2 +- packages/ui/user-approval/src/index.ts | 85 ++++++++-- .../ui/user-approval/tests/approval.spec.ts | 134 +++++++++++++++- .../tests/workflow-workerthread.spec.ts | 7 + 43 files changed, 825 insertions(+), 261 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 6e8bf080ac..18ef659ee0 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -745,7 +745,7 @@ export interface Config { Depends on: [`SubagentCapabilities`](../packages/subagent/subagent/src/index.ts) · [`SubagentStopReason`](../packages/subagent/subagent/src/index.ts) -Source: [`packages/support/subagent-mock/src/index.ts:84`](../packages/support/subagent-mock/src/index.ts) +Source: [`packages/support/subagent-mock/src/index.ts:87`](../packages/support/subagent-mock/src/index.ts) ## `@deepseek-ai/dsh-subagent-spawn` @@ -1019,7 +1019,7 @@ export interface Config { export type ApprovalPolicy = 'ask' | 'never' ``` -Source: [`packages/ui/user-approval/src/index.ts:263`](../packages/ui/user-approval/src/index.ts) +Source: [`packages/ui/user-approval/src/index.ts:268`](../packages/ui/user-approval/src/index.ts) ## `@deepseek-ai/dsh-web` diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index cd1327a1d1..f7bbecb20f 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -23,7 +23,7 @@ An agent's fully composed scoped world was published in the AgentRegistry. Its s Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:298`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:300`](../../packages/core/agent/src/types.ts) ### `agent/disposed` — emit @@ -35,7 +35,7 @@ An agent was removed from the registry after its driver and any in-flight turn r Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:312`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:314`](../../packages/core/agent/src/types.ts) ### `agent/error` — emit @@ -47,7 +47,7 @@ A step or turn errored. The loop reports a failure here (plus the logger) even w Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:585`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:587`](../../packages/core/agent/src/types.ts) ### `agent/pre-step` — serial @@ -61,7 +61,7 @@ Serial (awaited in registration order), not a waterfall: a listener mutates the Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:417`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:419`](../../packages/core/agent/src/types.ts) ### `agent/prompt-submit` — waterfall @@ -73,7 +73,7 @@ Waterfall: decide what happens to ONE drained queued message before it becomes a Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:435`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:437`](../../packages/core/agent/src/types.ts) ### `agent/queued` — emit @@ -85,7 +85,7 @@ A message entered the agent's inbox (queued or steering). `source` is the resolv Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:340`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:342`](../../packages/core/agent/src/types.ts) ### `agent/request` — waterfall @@ -97,7 +97,7 @@ Waterfall: shape the step's call configuration — model switching, sampling ove Types: [Agent](../core-data-structures/core.md) · [LlmCallConfig](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:464`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:466`](../../packages/core/agent/src/types.ts) ### `agent/session-prefix` — waterfall @@ -113,7 +113,7 @@ The seed is a frozen empty list; a contributing listener returns a NEW array — Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:516`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:518`](../../packages/core/agent/src/types.ts) ### `agent/session-start` — emit @@ -125,7 +125,7 @@ The agent's session lifecycle began, fired once before its first turn. `source` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:360`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:362`](../../packages/core/agent/src/types.ts) ### `agent/status` — emit @@ -137,7 +137,7 @@ Agent status changed (`idle` ⇄ `running`, or → `disposed`). Drive lifecycle Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:326`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:328`](../../packages/core/agent/src/types.ts) ### `agent/step-result` — waterfall @@ -149,7 +149,7 @@ Waterfall: post-process the assembled assistant Message before tool dispatch (va Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:531`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:533`](../../packages/core/agent/src/types.ts) ### `agent/turn-continuation` — waterfall @@ -161,7 +161,7 @@ Waterfall: override the turn-continuation decision via a typed ContinuationDecis Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:549`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:551`](../../packages/core/agent/src/types.ts) ### `agent/turn-stop` — serial @@ -173,13 +173,13 @@ Serial terminal-stop checkpoint after the ordinary `agent/turn-continuation` wat Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:568`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:570`](../../packages/core/agent/src/types.ts) ## `approval/*` ### `approval/request` — waterfall -Waterfall asking the composed answerers to decide one approval request. Dispatched only from ApprovalService.request — callers go through the service (which owns cancellation and the audit events), never through `ctx.waterfall` directly. A listener that can answer for this request's agent returns an outcome WITHOUT calling `next()` (the decision slot is single-occupancy, first listener to answer wins); a listener that does not recognize the agent MUST call `next()` so another answerer — or the fail-closed default `'unavailable'` — gets the question. Throwing is contained by the service and yields `'unavailable'`. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`) keys the carrier by `req.agent`: a listener registered through `agent.ctx` receives only that agent's questions, while a plain-context listener receives every agent's. +Waterfall asking the composed answerers to decide one approval request. Dispatched only from ApprovalService.request — callers go through the service (which owns cancellation and the audit events), never through `ctx.waterfall` directly. A listener that can answer for this request's agent returns an outcome WITHOUT calling `next()` (the decision slot is single-occupancy, first listener to answer wins); a listener that does not recognize the agent MUST call `next()` so another answerer — or the fail-closed default `'unavailable'` — gets the question. Throwing is contained by the service and yields `'unavailable'`. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`) keys the carrier by `req.agent`: a listener registered through `agent.ctx` receives only that agent's questions, while a plain-context listener receives every agent's. `req` is the service's shallow-frozen acceptance snapshot: later caller mutation cannot redirect the question, while the `agent` and `signal` identity capabilities remain exact. ```ts cordis-catalog 'approval/request'(this: Scoped, req: ApprovalRequest, next: () => Promise): Promise @@ -187,7 +187,7 @@ Waterfall asking the composed answerers to decide one approval request. Dispatch Types: [ApprovalOutcome](../core-data-structures/approval.md) · [ApprovalRequest](../core-data-structures/approval.md) -Source: [`packages/ui/user-approval/src/index.ts:69`](../../packages/ui/user-approval/src/index.ts) +Source: [`packages/ui/user-approval/src/index.ts:72`](../../packages/ui/user-approval/src/index.ts) ## `fs/*` @@ -301,13 +301,13 @@ Source: [`packages/skill/skill/src/index.ts:136`](../../packages/skill/skill/src ### `subagent/end` — emit -A subagent run settled — emitted when SubagentRun.result resolves (any stop reason). Paired with Events['subagent/start']. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by the DELEGATING PARENT — a listener registered through the parent's `agent.ctx` observes only its own delegations; a plain plugin listener observes every run. +A started subagent run settled — emitted when SubagentRun.result resolves (any stop reason) or rejects (reported as `error`). Paired with Events['subagent/start']; a run whose readiness rejected emits neither event. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by the DELEGATING PARENT — a listener registered through the parent's `agent.ctx` observes only its own delegations; a plain plugin listener observes every run. ```ts cordis-catalog 'subagent/end'(this: Scoped, info: SubagentRunEndInfo): void ``` -Source: [`packages/subagent/subagent/src/index.ts:109`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:114`](../../packages/subagent/subagent/src/index.ts) ### `subagent/provider-added` — emit @@ -331,13 +331,13 @@ Source: [`packages/subagent/subagent/src/index.ts:86`](../../packages/subagent/s ### `subagent/start` — emit -A subagent run started — emitted after the provider is resolved and its capabilities validated, as the child run begins. Paired with Events['subagent/end']. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by the DELEGATING PARENT — a listener registered through the parent's `agent.ctx` observes only its own delegations; a plain plugin listener observes every run. +A subagent run started — emitted only after SubagentRun.started fulfills, when the provider has established a live child. For an in-process provider, `ctx.agents.get(info.id)` is therefore guaranteed to resolve during this notification. A readiness rejection emits neither lifecycle event; every emitted start is paired with Events['subagent/end']. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by the DELEGATING PARENT — a listener registered through the parent's `agent.ctx` observes only its own delegations; a plain plugin listener observes every run. ```ts cordis-catalog 'subagent/start'(this: Scoped, info: SubagentRunInfo): void ``` -Source: [`packages/subagent/subagent/src/index.ts:98`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:101`](../../packages/subagent/subagent/src/index.ts) ## `system-prompt/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index b331e53fe3..f3cf92f425 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -40,7 +40,7 @@ list(): Agent[] Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/index.ts:168`](../../packages/core/agent/src/index.ts) +Source: [`packages/core/agent/src/index.ts:169`](../../packages/core/agent/src/index.ts) ## `ctx.approval` — `ApprovalService` @@ -54,7 +54,7 @@ async request(req: ApprovalRequest): Promise Types: [ApprovalOutcome](../core-data-structures/approval.md) · [ApprovalRequest](../core-data-structures/approval.md) -Source: [`packages/ui/user-approval/src/index.ts:287`](../../packages/ui/user-approval/src/index.ts) +Source: [`packages/ui/user-approval/src/index.ts:292`](../../packages/ui/user-approval/src/index.ts) ## `ctx.bash` — `BashExecutor` (abstract seam) @@ -246,7 +246,7 @@ list(): string[] start(name: string, request: SubagentStartRequest): SubagentRun ``` -Source: [`packages/subagent/subagent/src/index.ts:155`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:160`](../../packages/subagent/subagent/src/index.ts) ## `ctx.systemPrompt` — `SystemPrompt` diff --git a/docs/core-data-structures/subagent.md b/docs/core-data-structures/subagent.md index 66525592cf..3de6b5861e 100644 --- a/docs/core-data-structures/subagent.md +++ b/docs/core-data-structures/subagent.md @@ -62,11 +62,12 @@ interface SubagentStopReasonMap { ## A live run: `SubagentRun` -The handle the consumer holds while a child executes. The consumer awaits `result`, may `cancel` mid-flight, and MUST `dispose` on every path to reach child quiescence (no leaked idle child / session). `result` does NOT reject on a child-level failure — a model/transport failure resolves with `stopReason: 'error'` — so the consumer maps a non-`completed` reason to an `isError` result; it rejects only on an infrastructure fault the seam cannot represent. `sendMessage` and `resume` are OPTIONAL: a provider that supports the runtime capability defines the method; one that doesn't omits it. +The handle the consumer holds while a child executes. `started` is the provider's publication boundary: it resolves only after an in-process agent is live in `ctx.agents` or a remote transport has created its child session, and rejects when the attempt fails or is cancelled before that point. The consumer normally awaits `result`, may `cancel` mid-flight, and MUST `dispose` on every path to reach child quiescence (no leaked idle child / session). `result` does NOT reject on a child-level failure — a model/transport failure resolves with `stopReason: 'error'` — so the consumer maps a non-`completed` reason to an `isError` result; it rejects only on an infrastructure fault the seam cannot represent. `sendMessage` and `resume` are OPTIONAL: a provider that supports the runtime capability defines the method; one that doesn't omits it. ```ts type-equiv interface SubagentRun { readonly id: AgentId + readonly started: Promise readonly result: Promise cancel(reason?: string): void dispose(): Promise @@ -88,11 +89,11 @@ interface SubagentProvider { } ``` -The service (`ctx.subagents`) emits `subagent/start` when a run begins and `subagent/end` when it settles (see the [events catalog](../cordis-catalog/events.md)). `subagent/end` carries `lastAssistantMessage` (the child's final `output`) on the settle path, so an observer sees WHAT the subagent produced without holding the run (absent when the run rejected at the infrastructure level — no result was produced). These are **observe-only** events: both are plain `emit`s (the `subagent/end` fires from a detached `.then` after the result settles and awaits no listener), so a subscriber observes but cannot change the run. Both emits contain a thrown listener **per listener** (logged, never propagated): one bad subscriber can neither strand a live run, surface as an unhandled rejection on the detached settle hook, nor starve the listeners registered after it. +The service (`ctx.subagents`) emits `subagent/start` only after `run.started` fulfills and emits the paired `subagent/end` when that started run settles (see the [events catalog](../cordis-catalog/events.md)); a pre-publication readiness rejection emits neither event. For an in-process provider, a start listener can therefore resolve the live child with `ctx.agents.get(info.id)`; a remote provider need not publish into the local registry. `subagent/end` carries `lastAssistantMessage` (the child's final `output`) on the settle path, so an observer sees WHAT the subagent produced without holding the run (absent when the run rejected at the infrastructure level — no result was produced). These are **observe-only** events: both are plain `emit`s, so a subscriber observes but cannot change the run. Result settlement is observed immediately even while readiness is pending, then its cloned end payload is buffered until start has been announced; this prevents an early rejection from becoming unhandled while preserving start-before-end order and protecting the caller's result from listener mutation. Both emits contain a thrown listener **per listener** (logged, never propagated): one bad subscriber can neither strand a live run, surface as an unhandled rejection on the detached settle hook, nor starve the listeners registered after it. ## In-process backends: depth and seed -The two in-process backends ([dsh-subagent-spawn](../../packages/subagent/subagent-spawn) fresh, [dsh-subagent-fork](../../packages/subagent/subagent-fork) seeded) run the child as a child `Agent` on the same application. They synchronously snapshot caller-owned data, install provider ownership before attaching the abort listener, create one run-owner fiber under `parent.ctx`, and invoke the factory through that fiber: parent teardown, provider teardown, and manual run disposal share the same pre-publication ownership and quiescence boundary, while the child still receives a flat new scope rather than inheriting the parent's capabilities. Two pieces of vocabulary ride on the existing agent/session types rather than new core types: +The two in-process backends ([dsh-subagent-spawn](../../packages/subagent/subagent-spawn) fresh, [dsh-subagent-fork](../../packages/subagent/subagent-fork) seeded) run the child as a child `Agent` on the same application. They synchronously snapshot caller-owned data, install provider ownership before attaching the abort listener, create one run-owner fiber under `parent.ctx`, and invoke the factory through that fiber: parent teardown, provider teardown, and manual run disposal share the same pre-publication ownership and quiescence boundary, while the child still receives a flat new scope rather than inheriting the parent's capabilities. Their `started` promise projects the factory's successful publication and the result driver awaits that same promise before sending the prompt. Two pieces of vocabulary ride on the existing agent/session types rather than new core types: - **Delegation depth** is a merge-extensible `AgentOptions.subagentDepth` field (`0` for a top-level agent, parent + 1 for a child). The seam owns it — the loop neither sets nor reads it — so a nested spawn reads its parent's depth from `parent.options.subagentDepth` and the `depthLimit` capability caps the tree by refusing a child whose depth would exceed `request.maxDepth`. - **Fork seeding** uses `CreateAgentOptions.seed` (a `SessionEvent[]` prefix threaded through `AgentLoop.createAgent` → `ctx.sessions.prepare({ seed })`, the same primitive `resume` uses). The fork backend passes a *balanced completed-turn prefix* of the parent's log — the parent's events up to and including its last `turn/end` — so the seed is contiguous-from-0 and the [invariants](../../packages/support/invariants) replay accepts it (the in-flight, unbalanced turn is excluded). diff --git a/docs/core-data-structures/tools.md b/docs/core-data-structures/tools.md index e62e11922f..ad741a7522 100644 --- a/docs/core-data-structures/tools.md +++ b/docs/core-data-structures/tools.md @@ -175,7 +175,7 @@ type PostToolDecision = | { kind: 'block'; feedback: ContentBlock[]; additionalContext?: HookContext } ``` -Call `next()` to delegate to the default (allow / dispatch / accept-unchanged), or return a decision/result to short-circuit. A `pre-execute` `deny` (or `ask`, which degrades to deny until the permission system lands) skips dispatch and yields an `isError` result; a registered `ToolGuard` runs after that waterfall and can impose a final denial. Input rewrite is deliberately NOT offered on `PreToolDecision` because it would desync the pre-execution audit/history/UI from what ran. A `post-execute` `accept` may replace the model-facing `content`; a `block` turns the call into an `isError` whose content is the corrective `feedback`. The awaited `tools/result` notification then receives the frozen execution identity and a deep-frozen result snapshot after every wrapper, post decision, and outer error catch; observers cannot transform the outcome or race each other through payload mutation, and one observer failure neither changes the result nor starves peers. An unregistered tool routes through the same catch as a tool-thrown error, so both failure classes get a structured `{ name, code }` (`ToolNotFoundError` → `UNKNOWN_TOOL`) — the loop records a failed tool call instead of failing the whole turn. +Call `next()` to delegate to the default (allow / dispatch / accept-unchanged), or return a decision/result to short-circuit. A `pre-execute` `deny` skips dispatch and yields an `isError` result. An `ask` resolves through the optional approval seam: only `allowed-once` proceeds, while every non-grant, missing channel/service, or agent-less request becomes a normalized denial. A registered `ToolGuard` then runs and can still impose a final denial. Input rewrite is deliberately NOT offered on `PreToolDecision` because it would desync the pre-execution audit/history/UI from what ran. A `post-execute` `accept` may replace the model-facing `content`; a `block` turns the call into an `isError` whose content is the corrective `feedback`. The awaited `tools/result` notification then receives the frozen execution identity and a deep-frozen result snapshot after every wrapper, post decision, and outer error catch; observers cannot transform the outcome or race each other through payload mutation, and one observer failure neither changes the result nor starves peers. An unregistered tool routes through the same catch as a tool-thrown error, so both failure classes get a structured `{ name, code }` (`ToolNotFoundError` → `UNKNOWN_TOOL`) — the loop records a failed tool call instead of failing the whole turn. ## The structured-output schema subset diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 36cad3e3ad..879c0ac2e4 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -7,20 +7,20 @@ This matrix shows which packages dispatch each harness-owned event and which pac | Event | Mode | Declared in | Dispatchers | Listeners | | --- | --- | --- | --- | --- | -| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:298`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:312`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:585`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:417`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic), [`user-approval`](../packages/ui/user-approval) | -| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:435`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | -| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:340`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:464`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:516`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`tool-skill`](../packages/skill/tool-skill) | -| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:360`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`invariants`](../packages/support/invariants) | -| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:326`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:531`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:549`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `agent/turn-stop` | `serial` | [`packages/core/agent/src/types.ts:568`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`strictSerial (serial)`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | -| `approval/request` | `waterfall` | [`packages/ui/user-approval/src/index.ts:69`](../packages/ui/user-approval/src/index.ts) | [`user-approval`](../packages/ui/user-approval) (`waterfall`) | [`acp`](../packages/ui/acp) | +| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:300`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:314`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:587`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:419`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic), [`user-approval`](../packages/ui/user-approval) | +| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:437`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | +| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:342`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:466`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:518`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`tool-skill`](../packages/skill/tool-skill) | +| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:362`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`invariants`](../packages/support/invariants) | +| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:328`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:533`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:551`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/turn-stop` | `serial` | [`packages/core/agent/src/types.ts:570`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`strictSerial (serial)`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | +| `approval/request` | `waterfall` | [`packages/ui/user-approval/src/index.ts:72`](../packages/ui/user-approval/src/index.ts) | [`user-approval`](../packages/ui/user-approval) (`waterfall`) | [`acp`](../packages/ui/acp) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | @@ -30,10 +30,10 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `session/flush` | `parallel` | [`packages/core/session/src/index.ts:79`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | | `skill/provider-added` | `emit` | [`packages/skill/skill/src/index.ts:130`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | | `skill/provider-removed` | `emit` | [`packages/skill/skill/src/index.ts:136`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | -| `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:109`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | +| `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:114`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:75`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | | `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:86`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`tool-subagent`](../packages/subagent/tool-subagent) | -| `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:98`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | +| `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:101`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:45`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | | `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:55`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | | `tools/change` | `emit` | [`packages/core/tools/src/index.ts:176`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | diff --git a/docs/persistence-catalog.md b/docs/persistence-catalog.md index 7139ce261a..4bbe894338 100644 --- a/docs/persistence-catalog.md +++ b/docs/persistence-catalog.md @@ -23,7 +23,7 @@ An approval question was put to the answerer chain — log-only audit (like `hoo Types: [CallId](core-data-structures/core.md) -Source: [`packages/ui/user-approval/src/index.ts:83`](../packages/ui/user-approval/src/index.ts) +Source: [`packages/ui/user-approval/src/index.ts:86`](../packages/ui/user-approval/src/index.ts) #### `approval/decided` — log-only @@ -33,7 +33,7 @@ The outcome of a prior `approval/asked` (same `id`) — log-only audit. Exactly 'approval/decided': { id: ApprovalRequestId; outcome: ApprovalOutcome } ``` -Source: [`packages/ui/user-approval/src/index.ts:94`](../packages/ui/user-approval/src/index.ts) +Source: [`packages/ui/user-approval/src/index.ts:97`](../packages/ui/user-approval/src/index.ts) #### `approval/policy` — log-only @@ -43,7 +43,7 @@ The session's approval policy was switched — log-only, durable, replayable, ne 'approval/policy': { policy: ApprovalPolicy } ``` -Source: [`packages/ui/user-approval/src/index.ts:106`](../packages/ui/user-approval/src/index.ts) +Source: [`packages/ui/user-approval/src/index.ts:109`](../packages/ui/user-approval/src/index.ts) ### `assistant/*` diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index b92896c2b8..d0cdefaee8 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -206,6 +206,8 @@ The operation being described determines the key; callers cannot attach an unrel | `session/created`, `session/event`, `session/flush` | The owner scope captured when the session enters the store | | `subagent/start`, `subagent/end` | The delegating parent agent | +Approval requests cross an asynchronous answer boundary, so the service snapshots the accepted record synchronously. It preserves the exact agent and abort-signal identities but copies the scalar fields, captures the agent's session once, and uses that one snapshot for `approval/asked`, scoped dispatch, cancellation, policy, and `approval/decided`. Mutating the caller-owned record after `request()` returns therefore cannot split the audit pair or redirect the question to another agent's listeners. + The dispatch rule can be read independently of Cordis internals: ```text @@ -334,12 +336,11 @@ The sequence is not described as atomic because observers run between its steps. ### Teardown stops work before revoking its world -Every owner path uses the same reverse order: stop the loop and await its actual exit, remove the agent from the registry, detach the session, then unwind the scope. The final session events and durability flush therefore happen while the session and scoped listeners are still live. +Every owner path uses the same reverse order: stop the loop and await its actual exit plus every agent-started durability checkpoint, remove the agent from the registry, detach the session, then unwind the scope. Final turn events, the turn-ending flush, and any outstanding idle-injection flush therefore settle while the session and scoped listeners are still live. ```text disposeOwnedAgent(world): - world.stopDriver() - await world.agent.done # waits for any in-flight turn close and flush + await world.stopDriver() # waits for loop exit and all agent-started flushes world.detachAgent() # emits agent/disposed when announced world.detachSession() await world.scope.dispose() @@ -519,10 +520,14 @@ In-process subagents demonstrate how the scope, lifecycle, and final-policy piec ### Inputs and ownership are fixed before asynchronous creation +Provider registration first freezes an acceptance snapshot of the provider name, capability flags, parent-context descriptor, and `start` callback; the callback is bound to the original provider receiver so its intentional internal state stays live. Lookup, validation, model-facing wording, dispatch, lifecycle notifications, and HMR cleanup all use that snapshot. Mutating or reusing the caller's provider object later therefore cannot rename a live entry, change its advertised powers, replace its callback, or make its disposer delete the wrong key. + Starting a run snapshots every accepted field before asynchronous owner setup. The parent and abort signal are retained as identity capabilities but never reread from the mutable request record; tool filters, seed events, agent options, output schema, and prompt are detached. The schema is validated before cloning, while the prompt must pass the same lossless-JSON check before and after cloning that the session log requires. Later caller mutation therefore cannot change lifecycle scope, configuration, the schema enforced by the capture tool, or the prompt eventually logged and sent. The driver first installs provider ownership. Only after that succeeds does it attach the request's abort listener and create one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves neither a child nor an orphaned listener. The child factory runs through the owner fiber. Parent teardown, provider teardown, and manual run disposal all dispose this same node; moving it out of the active state synchronously prevents an unpublished setup from publishing afterward, while all three paths follow one quiescence promise. This structured ownership does not change the child's flat capability view. +The returned run separates acceptance from publication with `started: Promise`. For spawn and fork, it fulfills only after the child factory returns a published handle, so the service can emit `subagent/start` with `ctx.agents.get(run.id)` already live; it rejects when rollback prevents publication. The service observes `result` immediately but buffers its cloned end payload until readiness, preserving start-before-end order without leaving an early rejection unhandled. A readiness rejection emits neither lifecycle event. The result driver awaits the same boundary before sending the child prompt. + ```text startInProcessRun(providerContext, acceptedRequest): snapshot all request data, including parent identity @@ -535,11 +540,21 @@ startInProcessRun(providerContext, acceptedRequest): dispose providerLink await disposeRunOwner() - childHandle = await runOwner.ctx.agents.create({ + creation = runOwner.ctx.agents.create({ fresh ids and lineage, cloned options and optional seed, setup(childCtx) => install persona, tool restriction, structured runtime }) + + returnedRun.started = creation.then(childHandle => publication complete) + returnedRun.result = async: + await returnedRun.started + send the child prompt, await idle, derive the terminal result + +SubagentService.start(...): + attach result settlement handlers immediately + await returnedRun.started + emit subagent/start; later emit the buffered or eventual subagent/end ``` Parent teardown reaches `runOwner` by nesting; the provider and returned run handle reach the same node through their explicit disposers. @@ -687,7 +702,7 @@ The main benefit is one composition model across data, behavior, and lifetime: r - Plugin authors use the same registration APIs globally and per agent; only the context changes. - Registry-owned prompt schemas, executable lookup, Code Mode bindings, policy listeners, and UI presentation resolve from the same agent view. - Create and resume expose no partially configured registry entry during awaited setup. -- Agent disposal revokes scoped contributions after the driver and final session flush have settled. +- Agent disposal revokes scoped contributions after the driver and all final or idle-injection session flushes have settled. - Structured output composes per child without global mutation or listener-order assumptions. - Existing unscoped plugins remain deployment-wide contributors and observers. diff --git a/docs/rfc/implemented/feature/2026-06-15-code-mode.md b/docs/rfc/implemented/feature/2026-06-15-code-mode.md index f97e7abf50..be18e94ae0 100644 --- a/docs/rfc/implemented/feature/2026-06-15-code-mode.md +++ b/docs/rfc/implemented/feature/2026-06-15-code-mode.md @@ -4,7 +4,7 @@ Status: implemented ## Problem -Today the agent loop advertises every registered tool to the model as a native JSON-schema function definition. `ToolRegistry` contributes its schemas to the system-prompt assembly, the assembly's `tools` land on the wire (and in the logged request header), the model invokes one `tool-call` block per step, and the loop dispatches each call through `ctx.tools.execute()` **sequentially** (parallel tool execution is an explicit open TODO in `dsh-tools` and [docs/architecture.md](../../../architecture.md)), with **every** intermediate `tool-result` re-entering the model's context on the next request. +In the registry's native presentation, the agent loop advertises every visible capability as a JSON-schema function definition. `ToolRegistry` contributes its schemas to the system-prompt assembly, the assembly's `tools` land on the wire (and in the logged request header), the model invokes one `tool-call` block per step, and the loop dispatches each call through `ctx.tools.execute()` **sequentially** (parallel tool execution is an explicit open TODO in `dsh-tools` and [docs/architecture.md](../../../architecture.md)), with **every** intermediate `tool-result` re-entering the model's context on the next request. For multi-step tool work this is token-heavy and serial. The model cannot compose tools — loop over a result set, branch on an intermediate value, fan out, post-process — without a full model round-trip per call, and each round-trip drags the entire intermediate result back into context whether the model needs it or not. @@ -37,14 +37,14 @@ Three decisions, each elaborated in its own section below: Under `'code'` and `'both'` the registry owns `run_code` as a reserved presentation transport with one required parameter, `{ code: string }`. It is represented by a normal `ToolDefinition` for dispatch but stays outside the filterable capability layers, so restrictions cannot accidentally remove Code Mode's only entry point. Calls traverse the complete tool pipeline — `tools/pre-execute` → monotonic guards → `tools/execute` around dispatch → `tools/post-execute` → immutable `tools/result` notification — exactly like native calls; a permission plugin can inspect the program text before it runs, and final-result observers see the normalized outer outcome. Its `execute(args, exec)`: 1. **Builds the bindings**: the bridge owns a **run-scoped `AbortController`** whose signal follows `exec.signal` (an outer cancel propagates in) and which the bridge itself fires the moment the run settles for any reason — completion, program exception, `computeMs`/`maxWallMs` expiry, worker exit. For every visible capability tool, the binding is an async function that (a) checks the run signal before and after, (b) **JSON-normalizes the argument** — a `JSON.parse(JSON.stringify(args))` round-trip, rejecting that one call with a descriptive `Error` when the value does not survive (`BigInt`, circular structures) — because the seam's structured-clone boundary is wider than JSON while the session log accepts only JSON, (c) awaits its turn on the **per-run serialization queue** (below), (d) calls `this.execute({ callId, name, arguments, agent: exec.agent, parent: exec.token, signal: runSignal })` with a deterministic sub-id `` CallId(`${exec.callId}:code:${n}`) ``, (e) appends a `tool/code-dispatch` session event, and (f) maps the result: success → the text-block contents joined as a `string` (non-text blocks become placeholders), `isError` → **the binding rejects** with an `Error` carrying the result text. The child's readonly `parent` is only the outer execution's frozen, property-free token, so commit-style observers can correlate outcomes without receiving a mutation path into the live `run_code` wrapper. Every sub-call still traverses the full pipeline under its own immutable identity and registry-assigned token. The run signal, rather than the bare outer one, lets budget expiry abort an in-flight sub-tool instead of orphaning it. Rejection gives programs ordinary `try/catch` and `Promise.all` failure semantics rather than a bespoke result envelope. -2. **Runs the program**: `ctx.codeRuntime.run({ program: args.code, bindings: [{ global: 'tools', functions }], signal: exec.signal })`. -3. **Surfaces the outcome — after reaching quiescence.** When `ctx.codeRuntime.run()` resolves, the bridge fires the run-scoped abort (cancelling any in-flight sub-dispatch and abandoning queued-unstarted ones), then **awaits the dispatch queue's drain before returning**, per the dispose-to-quiescence rule in [defensive patterns](../../../defensive-patterns.md): an aborted in-flight sub-call still settles and logs its `isError` `tool/code-dispatch` event *inside* the open turn, and nothing can append after `run_code` returns. A successful run then returns one text block — the captured console/stdout output followed by the rendered return value (if any) — plus a `meta` payload (capped logs, dispatch count) for presentation. A run with `result.error` throws a `CodeRunFailedError extends HarnessError` (`code: 'CODE_RUN_FAILED'`, message = the error kind and text plus captured logs so the model can self-correct); the registry's existing catch turns it into a structured `isError` result. +2. **Runs the program**: `ctx.codeRuntime.run({ program: args.code, bindings: [{ global: 'tools', functions }], signal: runController.signal })`. The runtime receives the run-scoped signal, not only the caller's outer signal, so any way the outer run settles also aborts work inside the runtime. +3. **Surfaces the outcome — after reaching quiescence.** When `ctx.codeRuntime.run()` settles, whether by fulfillment or rejection, the bridge fires the run-scoped abort (cancelling any in-flight sub-dispatch and abandoning queued-unstarted ones), then **awaits the dispatch queue's drain before returning or propagating**, per the dispose-to-quiescence rule in [defensive patterns](../../../defensive-patterns.md): an aborted in-flight sub-call still settles and logs its `isError` `tool/code-dispatch` event *inside* the open turn, and nothing can append after `run_code` settles. A successful result then returns one text block — the captured console/stdout output followed by the rendered return value (if any) — plus a `meta` payload (capped logs, dispatch count) for presentation. A fulfilled run with `result.error` throws a `CodeRunFailedError extends HarnessError` (`code: 'CODE_RUN_FAILED'`, message = the error kind and text plus captured logs so the model can self-correct); a backend rejection propagates through the same registry error boundary. Both become structured `isError` tool results. **Sub-call `additionalContext` is suppressed, deliberately.** A `tools/post-execute` hook may attach `additionalContext` to a call; for loop-dispatched calls the loop buffers those and appends each as a `context/message` only after the step's `tool/result`s, preserving call/result adjacency. A sub-dispatch result's `additionalContext` has no such safe outlet from inside a running `run_code`: injecting immediately would land a `context/message` between the parent's `tool/call` and its `tool/result` (breaking the adjacency the buffering exists to protect), and `PostToolDecision.additionalContext` is singular where a program may produce many. The MVP therefore drops sub-call `additionalContext`, pinned by a test and stated in the hooks bridge's docs; the follow-up (a plural context channel or loop-level sub-dispatch buffering) is deferred until a real hook needs it through Code Mode. **Concurrency: serialized, enforced by the binding.** The bindings are async, so a model writing `Promise.all([tools.a(…), tools.b(…)])` starts both immediately — concurrent dispatch would be the default, while the tool contract carries no concurrency-safety metadata (the open parallel-execution TODO). Each `run_code` invocation therefore owns a dispatch queue and every binding call chains onto it, so even `Promise.all` executes the underlying `ctx.tools.execute()` calls one at a time in submission order; when the run settles, queued-but-unstarted dispatches are abandoned. Lifting this per tool remains tied to tools declaring themselves concurrency-safe. -**Presentation.** `run_code`'s render intent is decided here per the [render-intent RFC](../../implemented/architecture/2026-07-02-tool-render-intent-union.md): `presentCall` → a `generic` card, `kind: 'execute'`, title `Run code`, `rawInput` = the program text; `presentResult` → a `generic` card whose content is the captured output (from `meta`). Not a `terminal` card: that card's semantics are "a shell command in a working directory", which a program is not. +**Presentation.** `run_code`'s render intent is decided here per the [render-intent RFC](../../implemented/architecture/2026-07-02-tool-render-intent-union.md): `presentCall` → a `generic` card, `kind: 'execute'`, title = the program text, `rawInput` = the same program text; `presentResult` → a `generic` card whose content is the captured output (from `meta`). The program is the title because ACP execute cards reliably render that field while some clients omit body and raw-input content. This is not a `terminal` card: that card's semantics are "a shell command in a working directory", which a program is not. ### Observability: `tool/code-dispatch` @@ -56,7 +56,7 @@ Each sub-dispatch appends one session event, declared by `dsh-tools` via `Sessio - `CodeRunRequest = { program: string; bindings: CodeBindingNamespace[]; signal?: AbortSignal }` - `CodeBindingNamespace = { global: string; functions: Record Promise> }` — the runtime exposes each namespace as a global object of async functions inside the program; binding arguments and resolutions must be structured-cloneable (a runtime may cross a serialization boundary; ours does). -- `CodeRunResult = { value?: unknown; logs: CodeLogEntry[]; error?: CodeRunFailure }` — an error is a field on a resolved result, never a rejection of `run()`. +- `CodeRunResult = { value?: unknown; logs: CodeLogEntry[]; error?: CodeRunFailure }` — program execution outcomes, including exception, timeout, abort, and worker exit, resolve as the `error` field. `run()` may reject only for caller/seam misuse (for example a duplicate binding namespace); consumers still contain a non-conforming backend rejection at their own error boundary. - `CodeLogEntry = { source: 'console' | 'stdout' | 'stderr'; level?: 'log' | 'info' | 'warn' | 'error' | 'debug'; text: string }` - `CodeRunFailure = { kind: 'exception' | 'timeout' | 'abort' | 'worker-exit'; message: string }` — orthogonal outcomes reported independently per [defensive patterns](../../../defensive-patterns.md); a timed-out run is not an exception, an abort is not a timeout. - Two readonly backend descriptors, informational not gating: `language` (what the program must be written in — `'typescript'` for the shipped backend; a Python backend would say so, and pair with its own SDK generator on the presentation side) and `isolation` (`'worker-thread'` for the shipped backend; `'process'`, `'container'`, … for future ones). `dsh-tools` requires `language === 'typescript'` in the MVP — its codegen emits TS — and fails the assembly loudly otherwise, the same misconfiguration idiom as `toolOrder` violations (as when `mode` is non-native with no `ctx.codeRuntime` loaded at all). diff --git a/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md b/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md index 28daff14ff..474abd2c67 100644 --- a/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md +++ b/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md @@ -37,7 +37,7 @@ A new package group `packages/subagent/`: ### The primitive: `start → SubagentRun` -A provider exposes `start(request) → SubagentRun`. The run carries a `result` promise (the terminal `SubagentResult`), `cancel()`, and `dispose()`. The transport-neutral verb is **`start`**; "spawn" is reserved for the in-process `dsh-subagent-spawn` backend's identity, not the service verb. The service's `start(name, request)` resolves the named provider, validates capabilities, delegates, and emits `subagent/start` / `subagent/end` around the run. +A provider exposes `start(request) → SubagentRun`. The run carries `started` (the provider's publication/readiness promise), `result` (the terminal `SubagentResult`), `cancel()`, and `dispose()`. The transport-neutral verb is **`start`**; "spawn" is reserved for the in-process `dsh-subagent-spawn` backend's identity, not the service verb. The service's `start(name, request)` resolves the named provider, validates capabilities, delegates, and waits for `started` before emitting the paired `subagent/start` / `subagent/end`; an attempt that never establishes a child emits neither lifecycle event. For an in-process backend, readiness means the child is published in `ctx.agents`; for ACP it means the remote session exists. ### Two kinds of optional capability, discovered two ways diff --git a/docs/rfc/implemented/feature/2026-06-30-hook-bridges.md b/docs/rfc/implemented/feature/2026-06-30-hook-bridges.md index fc3c8a9a93..4c9b89b8d0 100644 --- a/docs/rfc/implemented/feature/2026-06-30-hook-bridges.md +++ b/docs/rfc/implemented/feature/2026-06-30-hook-bridges.md @@ -26,9 +26,11 @@ Each bridge maps the neutral `MergedHookOutcome` from the shared lib onto the se | `tools/pre-execute` | `deny`→`deny`; `ask`→`ask` | `block`→`deny` (no allow/ask) | | `tools/post-execute` | `deny`→`block`+feedback; context-only→delegate+fold | same | | `agent/turn-continuation` | blocking Stop → `continue` (reason = next-step steering) | same | -| `subagent/start` (emit) | additionalContext → inject into the live child | — (not a Codex event) | +| `subagent/start` (emit) | additionalContext → inject into a live in-process child; a remote child has no local injection target | — (not a Codex event) | | `subagent/end` (emit) | observe-only | — | +The CC bridge's `ask` result is a real permission path, not a terminal bridge decision: `dsh-tools` resolves it through the optional [approval seam](2026-07-06-approval-seam.md). A composed ACP answerer prompts the owning editor session and `allowed-once` proceeds; without an ApprovalService or answerer, the call fails closed to `deny`. + ### Context source is always the plugin (the mislabel guard) `agent.inject()` defaults a missing `MessageSource` to `{ kind: 'user' }` — which would record plugin-injected context as if the user had typed it. So every bridge `inject()` and every `HookContext` passes an explicit `{ kind: 'plugin', plugin: 'hooks-claude' | 'hooks-codex' }` source. A test asserts the resulting `context/message.source` is the plugin, never `user`. @@ -52,11 +54,10 @@ Two different cwds, kept distinct on purpose. The hooks **themselves** run in th ## Deferred (faithful-but-degraded) - **Tool-input rewrite.** A CC/Codex `updatedInput` is logged + warned, not honored — input rewrite is a deferred consistency-design problem ([the pre-tool-input-rewrite RFC](../../proposed/feature/2026-06-30-pre-tool-input-rewrite.md)), because the pre-execution args are read by `tool/call` audit + `assistant/message` history + ACP/tool-bash presentation, so an honest rewrite is a design unit, not a field. -- **Stop loop-guard** (`TODO(stop-loop-guard)`). CC/Codex break an infinite force-continue with `stop_hook_active` (true once a Stop hook fired this run) plus a max-consecutive cap; both are deferred. Today `stop_hook_active` is always `false`, so a Stop hook that unconditionally blocks would force-continue every step — a hook author must self-limit until the guard lands. -- **Permission `ask`** — deferred at landing, since serviced: the [approval seam](2026-07-06-approval-seam.md) resolves `ask` through `ctx.approval` (ACP prompts over `session/request_permission`), degrading to `deny` only where no approval service is composed. +- **Stop loop-guard** (`TODO(stop-loop-guard)`). CC/Codex break an infinite force-continue with `stop_hook_active` (true once a Stop hook fired this run) plus a max-consecutive cap; both are deferred. `stop_hook_active` is always `false`, so a Stop hook that unconditionally blocks would force-continue every step — a hook author must self-limit until the guard lands. - **Hook `continue:false` (hard halt).** A hook can ask to halt the whole run (CC/Codex `continue:false`); the shared merge folds it into `MergedHookOutcome.stop`/`stopReason`, but no bridge acts on it (`TODO(hook-continue-false)`) — the interception seams have no "hard-halt the agent" primitive yet (a Decision blocks/steers a single point, not the run). Deferred with the loop-guard work; the halt request is recorded in the `hook/result` log, and the hook keeps its per-point effect (decision/context) meanwhile. - **Config discovery.** The path is explicit in `cordis.yml` and process-level (see above); the full multi-layer CC/Codex precedence walk, per-session project-local discovery, and the trust/hash model are not reimplemented (`TODO(per-session-hook-config)`). -- **Session-start / subagent-start context is best-effort, not gated (`TODO(session-start-gating)`).** `agent/session-start` is a synchronous emit and the bridge runs its hook on a detached `.then`, so the injected `additionalContext` is not guaranteed to land before the first turn reaches the model — a slow hook can miss the first request (the context then arrives as a later injection). `subagent/start` is sharper: an in-process provider may have already queued the child's prompt before the listener runs, and a short-lived child can finish before the detached inject fires. Making startup context a gated/awaited primitive is a loop-level change deferred to the interception seams; today the contract is "injected as soon as the hook resolves", not "before the first request". The bridge tests do NOT wait on the injection where they assert the guaranteed-timing behavior, so they document the real (best-effort) timing rather than masking it. +- **Session-start / subagent-start context is best-effort, not gated (`TODO(session-start-gating)`).** `agent/session-start` is a synchronous emit and the bridge runs its hook on a detached `.then`, so the injected `additionalContext` is not guaranteed to land before the first turn reaches the model — a slow hook can miss the first request (the context then arrives as a later injection). `subagent/start` is emitted only after child publication, so the bridge can capture the live in-process child synchronously, but the result driver may queue the prompt as that same readiness boundary resolves and a short-lived child can finish before the detached hook injects. Making startup context a gated/awaited primitive is a loop-level change deferred to the interception seams; the contract is "injected as soon as the hook resolves", not "before the first request". The bridge tests do NOT wait on the injection where they assert the guaranteed-timing behavior, so they document the real (best-effort) timing rather than masking it. ## Alternatives considered diff --git a/docs/rfc/implemented/feature/2026-06-30-interception-seams.md b/docs/rfc/implemented/feature/2026-06-30-interception-seams.md index 111b5d833f..ba372b98b2 100644 --- a/docs/rfc/implemented/feature/2026-06-30-interception-seams.md +++ b/docs/rfc/implemented/feature/2026-06-30-interception-seams.md @@ -22,7 +22,7 @@ The canonical surface separates transformable policy, around-dispatch control, a Every call follows one ordered pipeline: `tools/pre-execute` → monotonic guards → `tools/execute` → core dispatch → `tools/post-execute` → `tools/result`. The registry requires caller-owned `arguments` to survive lossless-JSON validation before and after cloning, then snapshots `ToolExecutionInput` into a pipeline execution with its own opaque token: identity fields and deeply frozen detached arguments are immutable for the whole pipeline, and a nested call's `parent` contains only the enclosing execution's token rather than its live object. Optional `signal` is the only operational field an around-dispatch wrapper may add, replace, or remove, and the complete object freezes before final observers run. This identity contract prevents a policy listener from silently changing what the log, UI, and tool body believe ran. -- **`tools/pre-execute`** is the extensible waterfall gate. Its `PreToolDecision` allows, denies, or asks; deny/ask skips `tools/execute` and core dispatch but still produces a normalized result for post-policy and final observers. +- **`tools/pre-execute`** is the extensible waterfall gate. Its `PreToolDecision` allows, denies, or asks. Deny skips `tools/execute` and core dispatch. Ask resolves through the optional approval seam: only `allowed-once` continues through guards and dispatch; rejection, cancellation, an unavailable channel, a missing approval service, or an agent-less call becomes a normalized denial. Every outcome still reaches post-policy and final observers. - **`ctx.tools.guard()`** installs synchronous scope-aware policy after the whole pre-execute waterfall. A guard may deny or abstain, never force-allow, so listener ordering cannot resurrect an operation that a final invariant forbids. - **`tools/execute`** is the around-dispatch waterfall for timeout, retry, and metrics plugins. A wrapper delegates to core dispatch with `next()`, may add, replace, or remove only `exec.signal` before doing so, and receives the already-normalized result of a thrown or unknown tool; returning its own valid result short-circuits dispatch. - **`tools/post-execute`** is the inspect/transform waterfall. Its `PostToolDecision` accepts, blocks with feedback, optionally replaces content, or attaches `additionalContext`; in-place mutation of the result is not a transform channel, because the registry rebuilds the outcome from a protected snapshot plus the returned decision. @@ -46,7 +46,7 @@ Core dispatch and the tool body sit inside normalization boundaries, so tool, li ### Boundaries -The seam package does **not** declare `hook/*` session events (the durable hook-invocation log); those belong to `dsh-hook-protocol`, because a native plugin uses typed decisions without an external hook log. The native-plugin integration test (`packages/core/agent-loop/tests/interception.spec.ts`) composes the seams through the real loop with no `hook/*` protocol. Compaction (`PreCompact`/`PostCompact`), Notification, and Codex `PermissionRequest` remain outside this decision. The permission/`ask` system has since landed as the [approval seam](2026-07-06-approval-seam.md), whose `ctx.approval` services the `ask` this RFC originally shipped degraded to deny; terminal monotonic stopping is now provided separately by `agent/turn-stop`. +The seam package does **not** declare `hook/*` session events (the durable hook-invocation log); those belong to `dsh-hook-protocol`, because a native plugin uses typed decisions without an external hook log. The native-plugin integration test (`packages/core/agent-loop/tests/interception.spec.ts`) composes the seams through the real loop with no `hook/*` protocol. Compaction (`PreCompact`/`PostCompact`), Notification, and Codex `PermissionRequest` remain outside this decision. The [approval seam](2026-07-06-approval-seam.md) resolves `ask` decisions through `ctx.approval`, while terminal monotonic stopping is owned separately by `agent/turn-stop`. ## Alternatives considered diff --git a/docs/rfc/implemented/feature/2026-06-30-subagent-observe-enrich.md b/docs/rfc/implemented/feature/2026-06-30-subagent-observe-enrich.md index f3b1c9bfb6..17730458de 100644 --- a/docs/rfc/implemented/feature/2026-06-30-subagent-observe-enrich.md +++ b/docs/rfc/implemented/feature/2026-06-30-subagent-observe-enrich.md @@ -12,7 +12,7 @@ This RFC enriches the end payload. It is deliberately **observe-only**: no contr **Add `lastAssistantMessage` — the child's final output — to `SubagentRunEndInfo`.** On the settle path it is a DEEP CLONE of `SubagentResult.output` (so an observer sees WHAT the subagent produced without holding the run). On the REJECT path (an infrastructure fault where no `SubagentResult` was produced — the seam only knows `stopReason: 'error'`) it is absent. The clone is load-bearing for observe-only: the `subagent/end` emit fires from a detached `.then` registered *before* `start()` returns, i.e. before the caller's own `await run.result` continuation — handing listeners the same array reference would let a mutating listener corrupt the caller's `SubagentResult.output`. `structuredClone` makes the event a read-only view (a regression test mutates the event's array and asserts the caller's result is untouched); a clone failure is contained (logged, the event still fires without `lastAssistantMessage`) rather than becoming an unhandled rejection on the detached `.then`. -Both events stay plain **`emit`s**. `subagent/end` fires from a detached `.then` on `run.result` and awaits no listener, so it is genuinely observe-only by construction — a `subagent/start` listener can still reach the live child via `ctx.agents.get(info.id)` and `inject()` into it; a `subagent/end` listener can only observe (the run has settled). Per-listener containment (already in place) keeps one bad subscriber from stranding a live run or surfacing as an unhandled rejection on the detached settle hook. +Both events stay plain **`emit`s**. The service waits for `run.started` before firing `subagent/start`; an in-process listener can therefore reach the published child via `ctx.agents.get(info.id)` and `inject()` into it, while a remote provider need not have a local registry entry. It observes `run.result` immediately, snapshots the end payload before the caller can mutate it, and emits `subagent/end` only after start; readiness rejection emits neither event. The callbacks remain observe-only and per-listener containment keeps one bad subscriber from stranding a live run, surfacing as an unhandled rejection, or starving later listeners. ## Alternatives considered diff --git a/docs/rfc/implemented/feature/2026-07-06-approval-seam.md b/docs/rfc/implemented/feature/2026-07-06-approval-seam.md index eddb3ba733..1257554d30 100644 --- a/docs/rfc/implemented/feature/2026-07-06-approval-seam.md +++ b/docs/rfc/implemented/feature/2026-07-06-approval-seam.md @@ -4,7 +4,7 @@ Status: implemented ## Problem -Two callers need to put one question — "may this specific action proceed?" — to a human, and neither has a channel. `tools/pre-execute`'s `ask` decision (produced today by the Claude-Code hook bridge's `permissionDecision: ask`) degrades to deny because nothing services it. The [sandbox RFC](2026-07-06-sandbox.md)'s escalation phase needs the same channel for its post-denial one-shot retry. Without a shared seam, each would invent its own outcome vocabulary, UI routing, cancellation, and audit trail — and a deployment with no UI at all needs a guarantee that an unanswerable question can never grant anything. +Two callers need to put one question — "may this specific action proceed?" — to a human: `tools/pre-execute`'s `ask` decision (including the Claude-Code hook bridge's `permissionDecision: ask`) and the [sandbox RFC](2026-07-06-sandbox.md)'s post-denial one-shot escalation retry. A shared seam keeps them from inventing separate outcome vocabularies, UI routing, cancellation, and audit trails, while guaranteeing that a deployment with no UI can never grant an unanswerable request. The routing problem is ownership: an approval prompt must reach the editor session that owns the asking agent (the ACP bridge multiplexes N sessions over one connection), fail closed for agents nobody owns (in-process subagents, tests), and stay out of deployments that compose no UI (headless, CI). @@ -14,7 +14,7 @@ One package, `dsh-user-approval` (`packages/ui/user-approval`), owning the vocab ### How a deployment uses it -One `cordis.yml` entry mounts the seam; not loading it is the opt-out — consumers degrade to their historical fail-closed behavior with zero approval code registered: +One `cordis.yml` entry mounts the seam. Not loading it is the fail-closed opt-out: consumers deny unanswerable requests with zero approval code registered. ```yaml - id: approval @@ -49,29 +49,29 @@ The `escalation-rejected` twin ends in `{"outcome": "rejected"}` instead: nothin #### The seam: mechanism and policy split -`ApprovalService.request(req)` always resolves to a closed `ApprovalOutcome` — `allowed-once` / `rejected` / `cancelled` / `unavailable` — and never rejects. The service is the mechanism: it dispatches the `approval/request` waterfall, races the request's `AbortSignal` (abort settles `cancelled`; a late answer is discarded, never double-audited), contains a throwing answerer as `unavailable`, normalizes a rogue non-vocabulary return to `unavailable`, and lands the log-only audit pair `approval/asked`/`approval/decided` (paired by the branded `ApprovalRequestId`) on the requesting agent's session log. Grants are one-shot by definition: `allowed-once` authorizes the single asked-about action, never a class of future ones, and the service stores nothing between requests. The one precondition: `request()` throws (before appending anything) when the agent's session has no open turn — the audit pair must be turn-enclosed, the turn being the durable log's commit/replay boundary (a bare event between turns is dropped as crash tail on reload); every shipped ask path runs mid-turn already, and idle asks are a deferred design. +`ApprovalService.request(req)` always resolves to a closed `ApprovalOutcome` — `allowed-once` / `rejected` / `cancelled` / `unavailable` — and never rejects. The service synchronously snapshots and shallow-freezes the accepted request before its first asynchronous boundary: scalar fields are copied while the agent and `AbortSignal` remain exact identity capabilities, so later caller mutation cannot redirect scope, payload, cancellation, or either audit event. The service dispatches the `approval/request` waterfall, races the captured signal (abort settles `cancelled`; a late answer is discarded, never double-audited), contains a throwing answerer as `unavailable`, normalizes a rogue non-vocabulary return to `unavailable`, and lands the log-only audit pair `approval/asked`/`approval/decided` (paired by the branded `ApprovalRequestId`) on the captured agent's captured session log. A session observer runs after an event enters the append-only log; if one throws, the service recognizes the recorded event, contains the callback failure, and completes the pair. Grants are one-shot by definition: `allowed-once` authorizes the single asked-about action, never a class of future ones, and the service stores nothing between requests. The one precondition: `request()` throws (before appending anything) when the agent's session has no open turn — the audit pair must be turn-enclosed, the turn being the durable log's commit/replay boundary (a bare event between turns is dropped as crash tail on reload); every ask path runs mid-turn already, and idle asks are a deferred design. Answerers are the policy, and they are `approval/request` waterfall listeners. The waterfall buys exactly what the seam needs: with zero listeners the dispatch falls through to the caller-supplied default — `unavailable`, so fail-closed needs no configuration and no code in any deployment; a listener that recognizes the request's agent answers by returning an outcome without calling `next()` (the decision slot is single-occupancy, first answer wins — the same documented semantics as the `fs/write-intent` gate); a listener that does not recognize the agent MUST delegate via `next()` so another answerer or the default gets the question; and listeners dispose with their owning fiber, so an unloaded UI plugin degrades the next ask to `unavailable` instead of leaving a dangling channel. Registration order across sibling plugins is not load-order deterministic (the loader starts siblings concurrently), so a deployment composes ONE terminal answerer and reserves `prepend` listeners for decide-or-delegate gates. -`ApprovalRequest` carries the asking `agent` (routes the question; receives the audit events), the `toolName`, the optional exact `callId`, the asker's human-readable `reason`, and the optional `signal`. The vocabulary is deliberately self-contained — it names the tool-call by the `CallId` brand from `dsh-llm` and never imports `dsh-tools` — because `dsh-tools` depends on `dsh-user-approval` (the ask routing) and a `ToolCallView` import would close a package cycle. It deliberately does NOT carry tool arguments: a UI answerer attaches the prompt to the already-streamed tool call via `callId` instead of re-rendering the call. +`ApprovalRequest` carries the asking `agent` (routes the question; receives the audit events), the `toolName`, the optional exact `callId`, the asker's human-readable `reason`, and the optional `signal`. The caller owns this input record; `request()` owns its frozen acceptance snapshot. The vocabulary is deliberately self-contained — it names the tool-call by the `CallId` brand from `dsh-llm` and never imports `dsh-tools` — because `dsh-tools` depends on `dsh-user-approval` (the ask routing) and a `ToolCallView` import would close a package cycle. It deliberately does NOT carry tool arguments: a UI answerer attaches the prompt to the already-streamed tool call via `callId` instead of re-rendering the call. #### Ask routing in dsh-tools -`ToolRegistry.execute()` resolves an `ask` decision through the seam before the shared deny path: `allowed-once` proceeds to dispatch, and the three non-grants deny with distinct reasons — "the user rejected…", "…was cancelled", "…no approval channel is available" — so the model can tell a human "no" from an absent channel. The seam is consumed opportunistically (`ctx.get('approval')`, the `tool-bash`/`agent-loop` pattern), not statically injected: a deployment that composes no ApprovalService keeps the historical ask→deny degrade verbatim, an unmount mid-session degrades the same way on the next ask, and the registry's fiber never gates on the seam's presence. An agent-less execution also degrades — without an agent there is no session to audit to and no UI to route to. +`ToolRegistry.execute()` resolves an `ask` decision through the seam before the shared deny path: `allowed-once` proceeds to guards and dispatch, and the three non-grants deny with distinct reasons — "the user rejected…", "…was cancelled", "…no approval channel is available" — so the model can tell a human "no" from an absent channel. The seam is consumed opportunistically (`ctx.get('approval')`, the `tool-bash`/`agent-loop` pattern), not statically injected: with no ApprovalService, or after one unmounts, the next ask fails closed without gating the registry's fiber. An agent-less execution also fails closed — without an agent there is no session to audit to and no UI to route to. #### The per-session policy tier -The seam also owns the session-scoped approval policy — the approval knob of the two-knob per-session switching design ([the sandbox RFC](2026-07-06-sandbox.md) § Per-session modes is the pattern's home: one log-only event per knob, a pure fold, THE write path, ACP config-option advertisement, and turn-anchoring). `ApprovalPolicy` is `'ask' | 'never'`, and `effectiveApprovalPolicy(events) ?? Config.policy` (default `'ask'`) decides every request BEFORE any interactive answerer: the service resolves a `'never'` session to `'rejected'` INSIDE `request()`, before dispatching the waterfall at all — no listener registration, including a later `prepend`, can sit ahead of it — while `'ask'` dispatches unchanged (fail-closed `'unavailable'` with nobody composed, exactly the prior behavior). Visibility follows the switching design's two layers with one asymmetry: the prompt section states ONLY `'never'` (deterministic, availability-independent — "you will be prompted" would overclaim in a composition with no answerer, and absence under a logged header is exactly how the narrator reads `'ask'` back), the narrator injects at most one coalesced notice per switch, and the audit pair still lands on every ask, including the policy's auto-rejections. +The seam also owns the session-scoped approval policy — the approval knob of the two-knob per-session switching design ([the sandbox RFC](2026-07-06-sandbox.md) § Per-session modes is the pattern's home: one log-only event per knob, a pure fold, THE write path, ACP config-option advertisement, and turn-anchoring). `ApprovalPolicy` is `'ask' | 'never'`, and `effectiveApprovalPolicy(events) ?? Config.policy` (default `'ask'`) decides every request BEFORE any interactive answerer: the service resolves a `'never'` session to `'rejected'` INSIDE `request()`, before dispatching the waterfall at all — no listener registration, including a later `prepend`, can sit ahead of it — while `'ask'` dispatches unchanged and falls through to fail-closed `'unavailable'` when nobody answers. Visibility follows the switching design's two layers with one asymmetry: the prompt section states ONLY `'never'` (deterministic, availability-independent — "you will be prompted" would overclaim in a composition with no answerer, and absence under a logged header is exactly how the narrator reads `'ask'` back), the narrator injects at most one coalesced notice per switch, and the audit pair still lands on every ask, including the policy's auto-rejections. #### The ACP answerer The bridge registers the first real answerer: it resolves the owning session through its existing `WeakMap` reverse map, issues `session/request_permission` with the request's `callId` as the `toolCall` reference and the one-shot options `allow_once`/`reject_once`, and maps the response — selected `allow-once` → `allowed-once`, any other selection → `rejected` (an unknown optionId from a non-conforming client never grants), client `cancelled` → `cancelled`. A request for a foreign agent — or one without a `callId`, since the protocol prompt must attach to a tool call — delegates via `next()`. A rejected RPC (client gone mid-prompt) propagates to the service, which contains it as `unavailable`. Whether a call ASKS at all is policy — a hook or `tools/pre-execute` plugin returning `ask` — never the bridge's own judgment. -The reverse-map ownership seam [the ACP support RFC](../../implemented/feature/2026-06-14-acp-agent-client-protocol.md) laid down is exactly what the answerer routes through, and per-session permission ownership (the blocker recorded in [the multi-session RFC](../../implemented/feature/2026-06-14-acp-multi-session.md)) is what it implements. +The answerer routes through the bridge's reverse-map ownership seam described by [the ACP support RFC](../../implemented/feature/2026-06-14-acp-agent-client-protocol.md), implementing the per-session permission ownership required by [the multi-session RFC](../../implemented/feature/2026-06-14-acp-multi-session.md). #### Audit, and what the model sees -`approval/asked` / `approval/decided` are log-only session events (the `hook/invoked`/`hook/result` precedent): durable, replayable, never in the model transcript. The model's entire view of an approval is the tool result the asker derives from the outcome — reconstructability holds because that result is an ordinary logged `tool/result`. One `decided` per `asked`, whatever the outcome, including an already-aborted signal (settled `cancelled` without dispatching) and a contained answerer failure. +`approval/asked` / `approval/decided` are log-only session events (the `hook/invoked`/`hook/result` precedent): durable, replayable, never in the model transcript. The model's entire view of an approval is the tool result the asker derives from the outcome — reconstructability holds because that result is an ordinary logged `tool/result`. One `decided` lands per `asked`, whatever the outcome, including an already-aborted signal (settled `cancelled` without dispatching), a contained answerer failure, or a session observer that throws after either event is already appended. #### Entities and dependencies @@ -79,35 +79,35 @@ One package, no cycles: `dsh-user-approval` peers on `cordis`, `dsh-session` (ev ### Testing -Unit tier: the service's outcome branches (fail-closed default, first-wins slot, delegation, containment, rogue-value normalization, abort-before and abort-during with late-answer discard, fresh ids, fiber-disposal degradation) and the policy tier (both values × dispatch/decide, a `'never'` decision unbypassable even by an answerer prepended AFTER the service, audit pair intact) in `dsh-user-approval`; the ask routing matrix (grant dispatches; three non-grant reasons pinned verbatim; unmounted and agent-less degrades; the registry's own exhaustiveness backstop against a non-conforming stand-in) in `dsh-tools`; the answerer (wire shape of the prompt, outcome mapping, unknown-option conservatism, foreign-agent and call-less delegation) driven through a real bridge + scripted client in `dsh-acp`. +Unit tier: the service's outcome branches (fail-closed default, first-wins slot, delegation, containment, rogue-value normalization, abort-before and abort-during with late-answer discard, fresh ids, fiber-disposal degradation), accepted-request mutation across agent scopes, post-append observer throws on both audit events, and the policy tier (both values × dispatch/decide, a `'never'` decision unbypassable even by an answerer prepended AFTER the service, audit pair intact) in `dsh-user-approval`; the ask routing matrix (grant dispatches; three non-grant reasons pinned verbatim; unmounted and agent-less degrades; the registry's own exhaustiveness backstop against a non-conforming stand-in) in `dsh-tools`; the answerer (wire shape of the prompt, outcome mapping, unknown-option conservatism, foreign-agent and call-less delegation) driven through a real bridge + scripted client in `dsh-acp`. Snapshot tier: the harness accepts scripted permission answers (`permissionAnswers` in a scenario's `input.json`, consumed FIFO; an unscripted prompt answers `cancelled`, fail closed). The seam's wire is recorded end to end in the sandbox example's suite: both escalation branches drive `session/request_permission` through this seam over scripted answers (grant and rejection), and the recorded `mode-switching` scenario pins the `'never'` prompt sentence and the policy-switch notice ([the sandbox RFC](2026-07-06-sandbox.md) § Testing). ## Deferred - **`allow_always` grant storage** — honoring a persistent grant means designing storage, scope identity (call? path? prefix? session? time window?), and revocation; until designed, only the one-shot options are advertised ([the sandbox RFC](2026-07-06-sandbox.md) § Escalation records the open scope question). -- **A recorded hook-driven `ask` scenario** — the wire is recorded via the sandbox example's escalation branches; the hook-producer variant stays on the unit tier and the hook matrix's `hook-cc-pretool-ask`, with its deny texts pinned verbatim there. -- **Routing a child agent's approvals to the parent session** — `subagent-acp`'s child today auto-answers its own `permission` requests; surfacing them to the parent's editor is its own design. +- **A recorded hook-driven `ask` through a composed answerer** — the human-prompt wire is recorded through the sandbox example's escalation branches. The hook matrix's `hook-cc-pretool-ask` pins the no-ApprovalService fallback denial, while the hook-producer-plus-answerer composition remains on the unit tier. +- **Routing a child agent's approvals to the parent session** — `subagent-acp`'s child auto-answers its own `permission` requests; surfacing them to the parent's editor is its own design. ## Alternatives considered - **A single registered provider instead of waterfall listeners** — rejected: a `registerProvider()` surface forces every composition question — allowlist pre-filters, external hook deciders, scripted test answers, a policy gate in front of a human — inside one provider implementation. The waterfall gets composition, fail-closed absence, and HMR disposal from machinery the runtime already has; the seam's JSDoc pins the single-decision-slot convention instead of inventing a provider registry. -- **[The ACP support RFC](../../implemented/feature/2026-06-14-acp-agent-client-protocol.md)'s inline `tools/pre-execute` permission gate** — rejected, and superseded by this seam: prompting for every bridge-owned call hardwires the asking POLICY into the UI plugin, cannot serve a second asker (sandbox escalation happens after execution starts, with no pre-execute moment), and leaves hooks' `ask` — the vocabulary the interception seams already ship — unserviced. -- **A generic user-interaction seam (`ctx.userInteraction`) instead** — rejected: the two share a skeleton (route by agent, block for a human, handle absence), but approval's contract is narrower in every dimension that matters: a closed outcome vocabulary instead of free text, a protocol-native prompt attached to a tool call instead of a generic form, mandatory fail-closed absence, and audit events. The generic seam has since shipped (`packages/ui/user-interaction`, the `ask_user_question` tool over ACP elicitation) and approval deliberately still does not ride it — an elicitation form is not a permission prompt, and a free-text answer is not a closed outcome; sharing provider plumbing stays open if the two ever converge. +- **An inline `tools/pre-execute` permission gate in the ACP bridge** — rejected: prompting for every bridge-owned call hardwires the asking POLICY into the UI plugin, cannot serve a second asker (sandbox escalation happens after execution starts, with no pre-execute moment), and leaves hook-produced `ask` decisions without a shared mechanism. +- **The generic user-interaction seam (`ctx.userInteraction`)** — rejected as the approval mechanism: the two share a skeleton (route by agent, block for a human, handle absence), but approval's contract is narrower in every dimension that matters: a closed outcome vocabulary instead of free text, a protocol-native prompt attached to a tool call instead of a generic form, mandatory fail-closed absence, and audit events. Approval therefore does not ride the shipped `packages/ui/user-interaction` / `ask_user_question` elicitation path — an elicitation form is not a permission prompt, and a free-text answer is not a closed outcome; sharing provider plumbing stays open if the two ever converge. - **Static optional injection in `dsh-tools`** — rejected: the vendored cordis `Inject` type has no optional flag — the object form maps service names to intercept config, and a declared inject gates the fiber. `ctx.get('approval')` is the documented opportunistic-consumption pattern (the `tool-bash` owner-token lookup, the loop's persistence probe), reads presence per call, and degrades correctly across HMR without extra machinery. - **The capability-seam three-package split** — rejected: interface/implementation/consumer fits a seam whose implementation is swappable (bash-local vs bash-sandbox). Here the service body is fixed mechanism and the variable part is listeners that live with their owners — splitting would manufacture an implementation package with nothing in it ("don't split preemptively"). - **Offering `allow_always` now** — rejected: the protocol can express it, but honoring it means designing grant storage, scope identity, and revocation (§ Deferred). Advertising an option the harness cannot honor manufactures doomed grants. ## Consequences -What shipped pins — the suites in Testing hold each: +The implemented contract is pinned by the suites in Testing: - With an ApprovalService and an answerer composed, a hook's `ask` reaches a human and `allowed-once` dispatches the tool; every other outcome denies with its distinct reason. - A `'never'` session auto-rejects every ask without prompting anyone, states the policy in its prompt, and narrates switches (the shared switching mechanics are pinned in [the sandbox RFC](2026-07-06-sandbox.md)). -- Every unanswerable path fails closed to `unavailable`: no service (degrade, verbatim historical text), no listener, a foreign or agent-less request, a throwing answerer, a rogue return value, a dead client connection. -- Every `request()` lands exactly one `approval/asked`/`approval/decided` pair on the asking agent's log, replayable, invisible to the model transcript. +- Every unanswerable path fails closed to `unavailable`: no service, no listener, a foreign or agent-less request, a throwing answerer, a rogue return value, or a dead client connection. +- Every `request()` snapshots its routing identity and lands exactly one `approval/asked`/`approval/decided` pair on that agent's captured log, replayable and invisible to the model transcript; post-append observer failures cannot split the pair. - Prompts route per-session through the bridge's ownership map; one session's prompt can never reach another session's editor. -- A deployment that composes nothing new behaves byte-identically (the snapshot suite's goldens are unchanged). +- A deployment with no ApprovalService emits no approval prompt or approval audit events and denies every `ask` request. Costs and accepted limits: @@ -125,7 +125,7 @@ Behavioral and usage questions only — every "why not X?" design question lives - **Who decides whether a call asks in the first place?** Policy producers: a hook returning `permissionDecision: ask`, any `tools/pre-execute` listener, or the sandbox escalation gate. The seam and the bridge only route and answer; neither injects its own judgment about what deserves a prompt. - **What happens when the user dismisses the prompt, or the turn aborts mid-ask?** Dismissal maps to `cancelled` with its own deny text. An already-aborted signal settles `cancelled` without dispatching; an abort during the ask discards the late answer — one audit pair either way, never two. - **What if the client answers with an option the harness never offered?** Any selection other than the offered `allow_once` maps to `rejected` — an unknown optionId from a non-conforming client can never grant. -- **How do subagents' approvals route?** An agent no answerer owns delegates through the whole waterfall and fails closed — in-process subagents are unanswerable today by design. `subagent-acp`'s child-side auto-answer is untouched; routing a child's asks to the parent's editor is deferred (§ Deferred). +- **How do subagents' approvals route?** An agent no answerer owns delegates through the whole waterfall and fails closed — in-process subagents are deliberately unanswerable. `subagent-acp`'s child-side auto-answer is separate; routing a child's asks to the parent's editor is deferred (§ Deferred). - **What does `policy: 'never'` actually change at runtime?** The service resolves every ask for that session to `rejected` before dispatching any answerer (in-service, so no registration order can bypass it); the system prompt states the policy; switches are narrated at boundaries; the audit pair still lands for every auto-rejection. - **What happens across a hot reload, or when the UI plugin unloads mid-session?** Answerers dispose with their owning fiber, so the next ask degrades to `unavailable` instead of hanging on a dead channel; remounting re-registers the answerer with no catch-up state. - **Where does the user see what they are approving?** On the tool call itself: the prompt attaches to the already-streamed call via `callId` — arguments included — and adds the asker's human-readable `reason`; the request carries no argument copy of its own. diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts index 57390710f8..e56f675bb2 100644 --- a/packages/cordis/tool-cordis/src/api-catalog.ts +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -381,7 +381,7 @@ export const EVENT_API: readonly EventApiEntry[] = [ name: 'subagent/end', mode: 'emit', signature: '\'subagent/end\'(this: Scoped, info: SubagentRunEndInfo): void', - summary: 'A subagent run settled — emitted when SubagentRun.result resolves (any stop reason).', + summary: 'A started subagent run settled — emitted when SubagentRun.result resolves (any stop reason) or rejects (reported as `error`).', }, { name: 'subagent/provider-added', @@ -399,7 +399,7 @@ export const EVENT_API: readonly EventApiEntry[] = [ name: 'subagent/start', mode: 'emit', signature: '\'subagent/start\'(this: Scoped, info: SubagentRunInfo): void', - summary: 'A subagent run started — emitted after the provider is resolved and its capabilities validated, as the child run begins.', + summary: 'A subagent run started — emitted only after SubagentRun.started fulfills, when the provider has established a live child.', }, { name: 'system-prompt/assemble', @@ -869,7 +869,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'SubagentRun', - declaration: 'export interface SubagentRun {\n readonly id: AgentId;\n readonly result: Promise;\n cancel(reason?: string): void;\n dispose(): Promise;\n sendMessage?(content: ContentBlock[]): void;\n resume?(content: ContentBlock[]): SubagentRun;\n}', + declaration: 'export interface SubagentRun {\n readonly id: AgentId;\n readonly started: Promise;\n readonly result: Promise;\n cancel(reason?: string): void;\n dispose(): Promise;\n sendMessage?(content: ContentBlock[]): void;\n resume?(content: ContentBlock[]): SubagentRun;\n}', }, { name: 'SubagentStartRequest', diff --git a/packages/core/agent-loop/README.md b/packages/core/agent-loop/README.md index 2909ba6c37..217ba0a643 100644 --- a/packages/core/agent-loop/README.md +++ b/packages/core/agent-loop/README.md @@ -8,7 +8,7 @@ This is the only package in the harness that contains concrete loop logic. Every ### Public API -Lifecycle (scoped): programmatic creation and resume snapshot caller-owned identity/configuration data, reserve both IDs, mint `agent.ctx`, and install the ordered teardown skeleton before awaiting optional `setup`. Resume installs an owner-liveness sentinel before persistence load, then hands ownership directly to the full lifecycle. After setup resolves, the factory checks its lifecycle flag, owner-fiber state, and owning agent status around one microtask checkpoint so a same-turn Cordis unload wins before publication. Successful setup inserts both session and agent before announcing either, enables driving immediately before `agent/session-start`, then starts the loop. Setup calls to `send`/`steer`/`inject`/`cancel` reject structurally; load/setup rejection or owner unload publishes nothing. Teardown runs stop/drain → unregister → detach session → unwind scope. All `agent/*` dispatches go through `agentEvents(ctx, agent)`; per-step assembly through `assembleContextFor(agent)`; the turn-end durability checkpoint through `ctx.sessions.flush(session)`. +Lifecycle (scoped): programmatic creation and resume snapshot caller-owned identity/configuration data, reserve both IDs, mint `agent.ctx`, and install the ordered teardown skeleton before awaiting optional `setup`. Resume installs an owner-liveness sentinel before persistence load, then hands ownership directly to the full lifecycle. After setup resolves, the factory checks its lifecycle flag, owner-fiber state, and owning agent status around one microtask checkpoint so a same-turn Cordis unload wins before publication. Successful setup inserts both session and agent before announcing either, enables driving immediately before `agent/session-start`, then starts the loop. Setup calls to `send`/`steer`/`inject`/`cancel` reject structurally; load/setup rejection or owner unload publishes nothing. Teardown runs stop/drain (including outstanding idle-injection flushes) → unregister → detach session → unwind scope. All `agent/*` dispatches go through `agentEvents(ctx, agent)`; per-step assembly through `assembleContextFor(agent)`; the turn-end durability checkpoint through `ctx.sessions.flush(session)`. - `ctx.agentLoop.create(id: string, options?: AgentOptions, meta?: { cwd?: string }): ReactLoopAgent` — config-driven create: an agent on a fresh per-run session id `${id}-session-` with optional session metadata. Used for `cordis.yml`-configured agents. The per-run uuid avoids colliding with the on-disk log a prior run materialized once a durable persistence backend is loaded; each run is a new session (a deliberate demo simplification — a real resume-or-create policy is a TODO). Disposed with the calling fiber. diff --git a/packages/core/agent-loop/src/agent.ts b/packages/core/agent-loop/src/agent.ts index fb00f4ad76..c4c35f34db 100644 --- a/packages/core/agent-loop/src/agent.ts +++ b/packages/core/agent-loop/src/agent.ts @@ -31,8 +31,12 @@ export interface PreparedReactLoopAgent { agent: ReactLoopAgent /** Open its driving verbs at the rollback-covered publication boundary. */ enableDrive(): void - /** Start its driver after publication and session-start notification. */ - startDriver(): () => void + /** + * Start its driver after publication and session-start notification. + * The returned disposer reaches quiescence for both the loop and every + * fire-and-forget idle-injection flush the agent started. + */ + startDriver(): () => Promise } /** @@ -126,6 +130,12 @@ export class ReactLoopAgent implements Agent { * the `disposed` transition fires and leave the promise hanging. */ private idleWaiters: (() => void)[] = [] + /** + * Durability checkpoints started by idle {@link inject} calls. `inject()` is + * synchronous, so it cannot await them itself; the driver disposer drains + * this set before the lifecycle unregisters the agent or detaches its session. + */ + private pendingIdleFlushes = new Set>() constructor( private loopCtx: Context, @@ -249,14 +259,16 @@ export class ReactLoopAgent implements Agent { // will flush this turn. Fire-and-forget with error containment: inject() // is synchronous, and a persistence backend failing must not throw into // the caller (e.g. a tool-bash task-done callback). Disposal still drains - // independently, so a slow flush is safe. A flush failure is reported via - // agent/error (step 0 — the idle-injection convention, there is no real - // step) AND the logger, mirroring the loop's post-turn/end flush path so - // plugins monitoring agent/error see idle-injection persistence failures - // too. A throwing agent/error listener is contained. + // independently, so a slow flush is safe. The task is tracked until it + // settles: driver disposal awaits every pending idle-injection checkpoint + // before unregistering the agent or detaching the session. A flush failure + // is reported via agent/error (step 0 — the idle-injection convention, + // there is no real step) AND the logger, mirroring the loop's post-turn/end + // flush path so plugins monitoring agent/error see idle-injection + // persistence failures too. A throwing agent/error listener is contained. if (turnRecorded) { // Through the store's flush (the carrier owner), never a raw parallel. - void this.loopCtx.sessions.flush(this.session).catch((error: unknown) => { + const flush = this.loopCtx.sessions.flush(this.session).catch((error: unknown) => { const err = error instanceof Error ? error : new Error(String(error)) this.loopCtx.logger.warn(`agent "${this.id}": flush after idle injection failed: ${err.message}`) try { @@ -266,6 +278,13 @@ export class ReactLoopAgent implements Agent { // listener must not escape this fire-and-forget catch. } }) + this.pendingIdleFlushes.add(flush) + // Attach the same retirement callback to both settlement arms so even a + // logger failure in the catch above cannot become an unhandled rejection. + // Teardown uses allSettled for the same reason: a reporting failure must + // not strand ownership. + const retire = (): void => { this.pendingIdleFlushes.delete(flush) } + void flush.then(retire, retire) } } } @@ -310,8 +329,8 @@ export class ReactLoopAgent implements Agent { * fully ended) or chaining {@link done} on `disposed` (wait for the loop to * actually exit). Implements the {@link Agent.whenIdle} contract: a non-owner * quiescence-observation hook, distinct from teardown (a lifecycle owner stops - * and unregisters via `AgentHandle.dispose()`, which awaits {@link done} - * directly, not through this). + * and unregisters via `AgentHandle.dispose()`, whose driver boundary awaits + * both {@link done} and outstanding idle-injection flushes, not through this). */ whenIdle(): Promise { if (this._status === 'disposed') return this.done @@ -334,12 +353,14 @@ export class ReactLoopAgent implements Agent { * Start the driver loop. Returns a disposer: calling it sets status to * `disposed`, emits `agent/status('disposed')`, resolves the disposed * promise (unblocking the idle wait), releases any `whenIdle` waiters, and - * aborts the current request if any. The returned `agent.done` promise - * resolves once the loop exits. - * @returns the disposer — idempotent and infallible (it runs inside the - * fiber's LIFO disposal chain, where a throw would skip later disposers). + * aborts the current request if any. Its returned promise resolves only after + * the loop exits and every idle-injection flush started by this agent settles. + * @returns the disposer — idempotent, synchronously marks the agent disposed, + * and asynchronously reaches loop + flush quiescence without rejecting (it + * runs inside the fiber's LIFO disposal chain, where a rejection would skip + * later disposers). */ - [startDriver](): () => void { + [startDriver](): () => Promise { this.done = runLoop(this.loopCtx, this, { inbox: this.#inbox, setStatus: (status) => { this.setStatus(status) }, @@ -360,22 +381,35 @@ export class ReactLoopAgent implements Agent { // The disposer must be infallible: it runs inside the fiber's LIFO // disposal chain, where a throw would skip later disposers (e.g. the // registry unregistration) and leave `done` pending forever. - return () => { - if (this._status === 'disposed') return - this._status = 'disposed' - this.resolveDisposed() - // Release whenIdle waiters BEFORE the (guarded) event emit — they are - // internal state that must settle even if a listener throws below. Each - // waiter chains `done`, so it resolves only once the loop actually exits. - this.settleIdleWaiters() - this.currentAbort?.abort('disposed') - // setStatus refuses transitions out of 'disposed', so emit directly — - // 'disposed' is part of the agent/status contract. Guarded: a throwing - // listener must not break the disposal chain. - try { - this.loopCtx.emit(this.carrier, 'agent/status', this, 'disposed') - } catch { - // listener error during disposal — nothing safe left to do with it + return async () => { + if (this._status !== 'disposed') { + this._status = 'disposed' + this.resolveDisposed() + // Release whenIdle waiters BEFORE the (guarded) event emit — they are + // internal state that must settle even if a listener throws below. Each + // waiter chains `done`, so it resolves only once the loop actually exits. + this.settleIdleWaiters() + this.currentAbort?.abort('disposed') + // setStatus refuses transitions out of 'disposed', so emit directly — + // 'disposed' is part of the agent/status contract. Guarded: a throwing + // listener must not break the disposal chain. + try { + this.loopCtx.emit(this.carrier, 'agent/status', this, 'disposed') + } catch { + // listener error during disposal — nothing safe left to do with it + } + } + // An unexpected driver rejection must not skip registry/session/scope + // cleanup. The normal loop contains turn failures itself; allSettled is the + // final lifecycle backstop for anything outside those boundaries. + await Promise.allSettled([this.done]) + // No new inject() can start after the synchronous disposed transition. + // Loop because settled tasks retire themselves in promise reactions that + // may run beside this continuation; either the set is empty or this waits + // the exact remaining quiescence boundary. allSettled keeps a failure in + // error reporting from skipping the registry/session/scope disposers. + while (this.pendingIdleFlushes.size > 0) { + await Promise.allSettled([...this.pendingIdleFlushes]) } } } diff --git a/packages/core/agent-loop/src/index.ts b/packages/core/agent-loop/src/index.ts index 0b8879c2b7..bd5b7e3188 100644 --- a/packages/core/agent-loop/src/index.ts +++ b/packages/core/agent-loop/src/index.ts @@ -375,7 +375,7 @@ export class AgentLoop extends Service implements AgentFactory { let active = true let detachSession: (() => void) | undefined let detachAgent: (() => void) | undefined - let stop: (() => void) | undefined + let stop: (() => Promise) | undefined const { promise: deactivated, resolve: markDeactivated } = Promise.withResolvers() const { promise: torndown, resolve: markTorndown } = Promise.withResolvers() @@ -401,8 +401,7 @@ export class AgentLoop extends Service implements AgentFactory { active = false markDeactivated() if (stop === undefined) return - stop() - return agent.done + return stop() } }, 'agentLoop.lifecycle()') @@ -461,8 +460,9 @@ export class AgentLoop extends Service implements AgentFactory { /** * Build an {@link AgentHandle} for a PREPARED session + a fresh agent. The * handle's `dispose()` runs the composite effect's disposer (see - * {@link start}) — which stops the loop, awaits its exit (final flush - * captured), unregisters the agent, and detaches the session, in that order. + * {@link start}) — which stops the loop, awaits its exit and outstanding + * idle-injection flushes, unregisters the agent, and detaches the session, in + * that order. * The same composite effect is what a fiber unload disposes, so both teardown * triggers honor the ordering identically. * @@ -470,8 +470,8 @@ export class AgentLoop extends Service implements AgentFactory { * single-shot (a second call returns immediately because the effect's epoch is * already cleared, NOT awaiting the in-flight teardown), so concurrent/repeated * `dispose()` calls would otherwise resolve before the first call's - * `await agent.done` + final flush completed. Memoizing the promise makes every - * caller observe the SAME quiescence boundary, honoring the + * loop + flush quiescence boundary completed. Memoizing the promise makes + * every caller observe that SAME boundary, honoring the * `AgentHandle.dispose(): Promise` contract (mirrors the ACP `quiesce()` * helper). */ diff --git a/packages/core/agent-loop/src/loop.ts b/packages/core/agent-loop/src/loop.ts index b49c38f5da..8c30e42257 100644 --- a/packages/core/agent-loop/src/loop.ts +++ b/packages/core/agent-loop/src/loop.ts @@ -489,7 +489,7 @@ async function runTurn( // against the system prompt (it counts toward the budget). runStep reuses // this same assembly for the request, so the prompt is assembled once per // step. renderPrompt IS the full prompt — the persona is the order-0 - // section (registered by the AgentLoop plugin) and `{{variable}}` + // section (owned by dsh-system-prompt) and `{{variable}}` // interpolation happens in the render, so there is no separate join. const assembly = await ctx.systemPrompt.assemble(assembleContextFor(agent)) const fullSystemPrompt = renderPrompt(assembly) diff --git a/packages/core/agent-loop/tests/agent.spec.ts b/packages/core/agent-loop/tests/agent.spec.ts index d4f9d1e3d4..ab3494d991 100644 --- a/packages/core/agent-loop/tests/agent.spec.ts +++ b/packages/core/agent-loop/tests/agent.spec.ts @@ -242,11 +242,12 @@ describe('ReactLoopAgent', () => { const dispose = prepared.startDriver() // First dispose - dispose() + const firstDisposal = dispose() expect(agent.status).toBe('disposed') + await firstDisposal // Second dispose — idempotent, no throw - expect(() => { dispose() }).not.toThrow() + await expect(dispose()).resolves.toBeUndefined() expect(agent.status).toBe('disposed') }) @@ -347,10 +348,10 @@ describe('ReactLoopAgent', () => { expect(agent.status).toBe('running') const idle = agent.whenIdle() // queues an internal waiter (running) - dispose() // settles the waiter synchronously; whenIdle chains done + const disposal = dispose() // settles the waiter synchronously; whenIdle chains done await idle expect(agent.status).toBe('disposed') - await agent.done + await disposal }) it('whenIdle() subscribed while running survives a FIBER dispose (no hung promise)', async () => { diff --git a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts index 085629db64..2bf58be832 100644 --- a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts +++ b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts @@ -440,4 +440,35 @@ describe('agent scope lifecycle', () => { expect(ctx.sessions.get(SessionId('h1-s'))).toBeUndefined() await unload }) + + it('handle.dispose() awaits an idle-injection flush before unregistering or detaching', async () => { + const ctx = await harness() + const handle = await ctx.agents.create({ + agentId: AgentId('idle-flush'), + sessionId: SessionId('idle-flush-s'), + agentOptions: { model: 'mock' }, + }) + const gate = Promise.withResolvers() + let flushStarted = false + ctx.on('session/flush', (session) => { + if (session !== handle.agent.session) return + flushStarted = true + return gate.promise + }) + + handle.agent.inject(text('durable idle context'), { source: { kind: 'plugin', plugin: 'test' } }) + expect(flushStarted).toBe(true) + + let disposed = false + const disposal = handle.dispose().then(() => { disposed = true }) + await new Promise(resolve => setTimeout(resolve, 0)) + expect(disposed).toBe(false) + expect(ctx.agents.get(AgentId('idle-flush'))).toBe(handle.agent) + expect(ctx.sessions.get(SessionId('idle-flush-s'))).toBe(handle.agent.session) + + gate.resolve(undefined) + await disposal + expect(ctx.agents.get(AgentId('idle-flush'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('idle-flush-s'))).toBeUndefined() + }) }) diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index 035332704e..71e2be279d 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -23,7 +23,7 @@ Agent *creation* is provided by the plugin implementing `AgentFactory` (`dsh-age - `ctx.agents.create(options: CreateAgentOptions): Promise` — snapshot caller-owned IDs/options/metadata/seed, construct and await optional setup while unpublished, insert and announce both session and agent, open the `agent/session-start` driving boundary, then start a new loop on the caller-supplied `sessionId`. Agent/session IDs are reserved across setup; setup rejection or owner unload publishes nothing. Publication is rollback-covered: if a creation listener throws, entries and scope unwind but effects of already-delivered notifications remain observable; an agent whose announcement began emits `agent/disposed` during that rollback. Rejects if no factory is registered. - `ctx.agents.resume(options: ResumeAgentOptions): Promise` — snapshot caller-owned IDs/options, load a persisted session ([session persistence](../../../docs/rfc/implemented/architecture/2026-06-14-session-persistence.md)), mint a fresh agent scope, await optional setup while unpublished, then follow the same insert → announce → session-start → loop-start boundary. The IDs are reserved across persistence load and setup; load/setup rejection or owner unload publishes nothing. Rejects if no factory is registered or session persistence is unconfigured. -`AgentHandle = { agent: Agent; dispose(): Promise }`. The disposer is a **capability** — only the holder can tear this agent down. `dispose()` stops the loop, `await`s its exit (quiescence — NOT just the `disposed` status flip), unregisters the agent, removes its session from the store, and finally unwinds its scoped world. This order captures the loop's final `session/flush` before the session is detached and keeps scoped listeners alive through that flush. `ctx.agents.get(id)` still returns a bare `Agent` — the handle is only for the OWNER that created it. The ACP bridge and in-process subagent backends are production consumers; config-created agents are owned by the loop fiber and never need a handle. +`AgentHandle = { agent: Agent; dispose(): Promise }`. The disposer is a **capability** — only the holder can tear this agent down. `dispose()` stops the loop, `await`s its exit plus every outstanding idle-injection flush (quiescence — NOT just the `disposed` status flip), unregisters the agent, removes its session from the store, and finally unwinds its scoped world. This order captures every agent-started `session/flush` before the session is detached and keeps scoped listeners alive through those checkpoints. `ctx.agents.get(id)` still returns a bare `Agent` — the handle is only for the OWNER that created it. The ACP bridge and in-process subagent backends are production consumers; config-created agents are owned by the loop fiber and never need a handle. ### Live events diff --git a/packages/core/agent/src/index.ts b/packages/core/agent/src/index.ts index 5bd3dd80d7..c73de89e6d 100644 --- a/packages/core/agent/src/index.ts +++ b/packages/core/agent/src/index.ts @@ -107,11 +107,12 @@ export interface ResumeAgentOptions { /** * An owned agent plus its disposer, returned by {@link AgentRegistry.create} / * {@link AgentRegistry.resume}. The disposer is a CAPABILITY: only the holder - * can tear this agent down. `dispose()` stops the loop, awaits its exit - * (quiescence — NOT just the `disposed` status flip), unregisters the agent, - * removes its session from the store, and finally unwinds its scoped world. - * This order captures the loop's final `session/flush` before the session is - * detached and keeps scoped listeners alive through that flush. + * can tear this agent down. `dispose()` stops the loop, awaits its exit and + * every outstanding idle-injection flush (quiescence — NOT just the `disposed` + * status flip), unregisters the agent, removes its session from the store, and + * finally unwinds its scoped world. This order captures every agent-started + * `session/flush` before the session is detached and keeps scoped listeners + * alive through those checkpoints. * * `ctx.agents.get(id)` still returns a bare {@link Agent} — the handle is only * for the OWNER that created it. Config-created agents (the loop's own startup) diff --git a/packages/core/agent/src/types.ts b/packages/core/agent/src/types.ts index 1017a2df46..4196eb43d6 100644 --- a/packages/core/agent/src/types.ts +++ b/packages/core/agent/src/types.ts @@ -222,8 +222,10 @@ export interface Agent { * turn (`turn/start` → `context/message` → `turn/end`) and checkpoints it for * durability, so every event stays inside a turn and a persistence backend * never loses a between-turn notice. The idle checkpoint is fire-and-forget - * (inject is synchronous): a failing flush is reported via `agent/error` - * (step `0`) and the logger, never thrown into the caller. + * from this synchronous method, but lifecycle disposal awaits it before + * unregistering the agent or detaching its session. A failing flush is + * reported via `agent/error` (step `0`) and the logger, never thrown into the + * caller. * * Live-adapter review has validated the tagged-envelope rendering against * current DeepSeek behavior; provider-specific mismatches belong in that diff --git a/packages/hooks/hooks-claude/README.md b/packages/hooks/hooks-claude/README.md index 306bfdbfeb..f97cdb5cfc 100644 --- a/packages/hooks/hooks-claude/README.md +++ b/packages/hooks/hooks-claude/README.md @@ -39,7 +39,7 @@ The hooks **themselves** run in the agent's session workspace: for the agent-sco | `PreToolUse` | `tools/pre-execute` (waterfall) | `deny` → `PreToolDecision.deny`; `ask` → `PreToolDecision.ask` | | `PostToolUse` | `tools/post-execute` (waterfall) | `deny` → `block` with feedback; additionalContext-only → delegate via `next()` then fold context onto the downstream decision (a Code Mode sub-call’s context is dropped by the run_code bridge — see [the pipeline doc](../../../docs/tool-execution-pipeline.md)) | | `Stop` | `agent/turn-continuation` (waterfall) | a blocking Stop hook forces `continue`, feeding its reason as next-step steering | -| `SubagentStart` | `subagent/start` (emit) | additionalContext → `agent.inject()` into the live child | +| `SubagentStart` | `subagent/start` (emit) | additionalContext → `agent.inject()` into a live in-process child; a remote child has no local injection target | | `SubagentStop` | `subagent/end` (emit) | observe-only | The three emit points run detached — no seam awaits a `SessionStart`/`SubagentStart`/`SubagentStop` hook. Each run chain is tracked, and disposing the bridge aborts still-running hook processes, then drains the continuations before the dispose resolves (`createDetachedRuns` in `dsh-hook-protocol`). diff --git a/packages/subagent/subagent-acp/README.md b/packages/subagent/subagent-acp/README.md index 7fb087dcdc..cb51986915 100644 --- a/packages/subagent/subagent-acp/README.md +++ b/packages/subagent/subagent-acp/README.md @@ -6,7 +6,7 @@ It is the direction-inverted twin of the server-side bridge in [`@deepseek-ai/ds ## What it does -`start(request)` spawns the configured command, wraps its stdio in an ACP `ClientSideConnection`, and drives one session: `initialize` → `newSession` → `prompt`. The child's streamed `agent_message_chunk` text becomes the `SubagentResult.output`; the prompt's terminal `StopReason` maps to the stop reason. `dispose()` kills the subprocess and awaits its exit. +`start(request)` spawns the configured command, wraps its stdio in an ACP `ClientSideConnection`, and drives one session: `initialize` → `newSession` → `prompt`. `run.started` resolves after `newSession` publishes the remote session and rejects when initialization fails or cancellation wins first; the service emits no start/end pair for a child that never became live. The child's streamed `agent_message_chunk` text becomes the `SubagentResult.output`; the prompt's terminal `StopReason` maps to the stop reason. `dispose()` kills the subprocess and awaits its exit. **Fresh process per run.** Each `start` spawns a new child, runs exactly one ACP session, and disposes it. Persistent-process pooling is a future optimization (see the RFC). @@ -22,7 +22,7 @@ Unlike the in-process backends, the child does NOT share this cordis context — | `providerName` | string | `acp` | Registry name on `ctx.subagents`. | | `command` | string | — (required) | The executable to spawn for each run (the child ACP agent). | | `args` | string[] | `[]` | Arguments passed to `command`. | -| `cwd` | string | parent cwd | Working directory for the child process and its ACP session. | +| `cwd` | string | process cwd | Working directory for the child process and its ACP session. | | `permission` | `'allow' \| 'reject'` | `reject` | How to auto-answer the child's `session/request_permission` prompts. `reject` declines every prompt (answer `cancelled`); `allow` approves via the first allow-shaped option. The first cut surfaces no prompt to a human. | | `env` | Record | `{}` | Extra env vars for the child (e.g. its own `DEEPSEEK_API_KEY`). Forwarded on top of a credential-scrubbed copy of the parent env, so an explicit key reaches the child while ambient secrets do not leak implicitly. | | `disposeEofGraceMs` | number | `6000` | Dispose ladder tier 1: how long the child gets to quiesce on its own after stdin EOF (flush persistence, tear down its nested subprocesses) before SIGTERM. | diff --git a/packages/subagent/subagent-acp/src/run.ts b/packages/subagent/subagent-acp/src/run.ts index 9d5b17cb9a..410f7ad7bf 100644 --- a/packages/subagent/subagent-acp/src/run.ts +++ b/packages/subagent/subagent-acp/src/run.ts @@ -196,9 +196,15 @@ export function startAcpRun(request: SubagentStartRequest, spec: AcpRunSpec): Su // return an inert run that settled `aborted`, rather than launching the // configured binary just to tear it down. `dispose`/`cancel` are no-ops. if (request.signal?.aborted) { + const started = Promise.reject(new Error('subagent request was aborted before the ACP child started')) + // The result is derived from the same boundary so the readiness rejection + // is observed even when this provider is driven directly rather than + // through SubagentService. + const result: Promise = started.catch(() => ({ output: [], stopReason: 'aborted' })) return { id, - result: Promise.resolve({ output: [], stopReason: 'aborted' }), + started, + result, cancel(_reason?: string): void { /* nothing was started */ }, dispose(): Promise { return Promise.resolve() }, } @@ -289,54 +295,70 @@ export function startAcpRun(request: SubagentStartRequest, spec: AcpRunSpec): Su const onAbort = (): void => { requestCancel() } request.signal?.addEventListener('abort', onAbort, { once: true }) + // The accumulated child text as harness ContentBlocks (empty array when the + // child streamed nothing). Read at every return so a partial answer survives + // a later cancel/error. + const collectOutput = (): ContentBlock[] => { + const text = output.join('') + return text.length > 0 ? [{ type: 'text', text }] : [] + } + + // A provider is "started" only once the remote child has completed ACP + // initialization and published a session. SubagentService gates its + // `subagent/start` notification on this boundary, just as the in-process + // provider gates it on local Agent publication. Failure or cancellation + // before this point rejects readiness and therefore produces no paired + // lifecycle events for a child that never became live. + const started: Promise = Promise.race([ + (async (): Promise => { + await conn.initialize({ + protocolVersion: PROTOCOL_VERSION, + // Advertise NO optional client capabilities (no fs, no terminal): the + // child self-serves in its own process. + clientCapabilities: {}, + }) + const session = await conn.newSession({ cwd: spec.cwd, mcpServers: [] }) + sessionId = session.sessionId + if (flags.cancelled) throw new Error('subagent cancelled before the ACP session started') + })(), + spawnFailed.then((err): never => { throw err }), + cancelSettled.then((): never => { throw new Error('subagent cancelled before the ACP session started') }), + ]) + const result: Promise = (async (): Promise => { - // The accumulated child text as harness ContentBlocks (empty array when the - // child streamed nothing). Read at every return so a partial answer survives - // a later cancel/error. - const collectOutput = (): ContentBlock[] => { - const text = output.join('') - return text.length > 0 ? [{ type: 'text', text }] : [] - } try { - // Race three outcomes, first to settle wins: - // - driveAcp: the normal initialize → newSession → prompt path; - // - spawnFailed: a bad command never speaks ACP, so `initialize` would - // hang forever — the spawn `error` event is the only signal, and a - // rejected race settles the run `error` via the catch; + // Readiness is the initialize → newSession phase above. Awaiting the SAME + // promise immediately observes its rejection even without the service, + // and guarantees the prompt phase never starts before the provider can + // truthfully announce a live child. + await started + + // Race two post-start outcomes, first to settle wins: + // - prompt: the normal remote turn; // - cancelSettled: a cancel was requested — settle `aborted` immediately // rather than waiting on a child that may ignore `session/cancel` or // wedge the prompt (the `cancel()` contract: `result` settles `aborted`). - const driveAcp = async (): Promise => { - await conn.initialize({ - protocolVersion: PROTOCOL_VERSION, - // Advertise NO optional client capabilities (no fs, no terminal): the - // child self-serves in its own process. - clientCapabilities: {}, - }) - const session = await conn.newSession({ cwd: spec.cwd, mcpServers: [] }) - sessionId = session.sessionId - // A cancel that raced ahead of `newSession` set `cancelled` but could not - // send `session/cancel` (no session id yet). Honor it here: settle - // `aborted` without ever issuing the prompt, rather than running the child - // to completion and ignoring the cancel. - if (flags.cancelled) return { output: collectOutput(), stopReason: 'aborted' } - const promptResult = await conn.prompt({ sessionId, prompt: toAcpPrompt(request.prompt) }) + // A spawn error can only precede readiness and is already one arm of + // `started`; after `newSession` succeeds, transport/process failure rejects + // the in-flight prompt RPC through the connection. + const prompt = async (): Promise => { + // `started` cannot fulfill without assigning the session id; the cast + // records that local invariant without an unreachable defensive arm. + const promptResult = await conn.prompt({ sessionId: sessionId as string, prompt: toAcpPrompt(request.prompt) }) return { output: collectOutput(), stopReason: acpStopReason(promptResult.stopReason) } } return await Promise.race([ - driveAcp(), - spawnFailed.then((err): SubagentResult => { throw err }), + prompt(), cancelSettled.then((): SubagentResult => ({ output: collectOutput(), stopReason: 'aborted' })), ]) } catch (error: unknown) { + if (flags.cancelled) return { output: collectOutput(), stopReason: 'aborted' } // The seam contract: result resolves (never rejects) on a child-level - // failure. Cancellation is handled by the `cancelSettled` race arm above - // (it settles `aborted` the instant cancel is requested, beating any - // rejection), so a rejection that reaches HERE is always a genuine - // child-level error — the awaited ACP RPCs or the spawn-failure race - // (initialize/newSession/prompt transport/RPC errors, or ENOENT), not a - // local bug. Flatten to `error` and surface the original via onError so a - // real fault is preserved rather than silently lost. + // failure. A cancellation is recognized by the flag above even when it + // wins during readiness; every other rejection is a genuine child-level + // error — initialize/newSession/prompt transport/RPC failure or ENOENT. + // Flatten to `error` and surface the original via onError so a real fault + // is preserved rather than silently lost. try { spec.onError?.(toError(error), 'error') } catch { @@ -350,6 +372,7 @@ export function startAcpRun(request: SubagentStartRequest, spec: AcpRunSpec): Su return { id, + started, result, cancel(_reason?: string): void { requestCancel() diff --git a/packages/subagent/subagent-fork/README.md b/packages/subagent/subagent-fork/README.md index c626775945..1434601c8e 100644 --- a/packages/subagent/subagent-fork/README.md +++ b/packages/subagent/subagent-fork/README.md @@ -1,6 +1,6 @@ # @deepseek-ai/dsh-subagent-fork -The in-process **fork** subagent backend: a [`SubagentProvider`](../subagent/README.md) that runs each child as a child [`Agent`](../../core/agent) **seeded with a prefix of the parent's session log** — so the child inherits the parent's conversation context instead of starting fresh. Shares the run driver (`startInProcessRun`) with [`dsh-subagent-spawn`](../subagent-spawn/README.md); the only difference is the seed. +The in-process **fork** subagent backend: a [`SubagentProvider`](../subagent/README.md) that runs each child as a child [`Agent`](../../core/agent) **seeded with a prefix of the parent's session log** — so the child inherits the parent's conversation context instead of starting fresh. Shares the run driver (`startInProcessRun`) with [`dsh-subagent-spawn`](../subagent-spawn/README.md); the only difference is the seed. The shared `run.started` boundary resolves only after the seeded child is published, so `subagent/start` observers see a live registry entry. ## The seed boundary (the crux) diff --git a/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts b/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts index 31a4f4c895..f9c7b04a51 100644 --- a/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts +++ b/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts @@ -71,6 +71,23 @@ describe('completedTurnPrefix', () => { }) describe('dsh-subagent-fork', () => { + it('emits subagent/start only after the seeded child is published', async () => { + const { ctx, parent } = await setup([textResponse('child answer')]) + let childAtStart: ReturnType + ctx.on('subagent/start', (info) => { + if (info.provider === 'fork') childAtStart = ctx.agents.get(info.id) + }) + + const run = ctx.subagents.start('fork', { prompt: [{ type: 'text', text: 'child q' }], parent }) + expect(childAtStart).toBeUndefined() + await run.started + expect(childAtStart).toBe(ctx.agents.get(run.id)) + expect(childAtStart?.id).toBe(run.id) + + await run.result + await run.dispose() + }) + it('forks an UNSEEDED (fresh) child when the parent has no completed turn', async () => { // The parent has never completed a turn → empty prefix → the provider omits // the seed → the child runs fresh. Exercises the `seed.length > 0` false arm. diff --git a/packages/subagent/subagent-inprocess/README.md b/packages/subagent/subagent-inprocess/README.md index 1c5aa13374..caa7b9b161 100644 --- a/packages/subagent/subagent-inprocess/README.md +++ b/packages/subagent/subagent-inprocess/README.md @@ -9,11 +9,11 @@ The shared **in-process subagent run driver**. A library with no provider or imp Runs a child as a child [`Agent`](../../core/agent) on the same cordis context (`ctx.agents`): 1. snapshots the accepted request before asynchronous owner setup: the parent and signal remain identity capabilities but are never reread from the caller-owned record; tool filter, seed, agent options, output schema, and prompt are detached. It computes child depth = `depthOf(parent) + 1` and rejects `request.maxDepth` overflow with `SubagentDepthError`; `outputSchema` is asserted before cloning so a hostile value fails as `OutputSchemaError`, while the prompt passes the session log's lossless-JSON check before and after cloning; -2. first installs provider ownership, then attaches the request abort listener and creates one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves no child or orphaned listener. Async child creation goes through that fiber's `ctx.agents` service with fresh IDs, lineage/seed, inherited model, and an unpublished setup transaction for persona, tool restriction, and structured output. Parent teardown, provider teardown, and manual `run.dispose()` all dispose this exact node, preventing publication after it becomes inactive and awaiting the same quiescence boundary. `startInProcessRun` still returns its `SubagentRun` immediately, and cancellation during creation is recorded and applied when a child exists; +2. first installs provider ownership, then attaches the request abort listener and creates one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves no child or orphaned listener. Async child creation goes through that fiber's `ctx.agents` service with fresh IDs, lineage/seed, inherited model, and an unpublished setup transaction for persona, tool restriction, and structured output. Parent teardown, provider teardown, and manual `run.dispose()` all dispose this exact node, preventing publication after it becomes inactive and awaiting the same quiescence boundary. `startInProcessRun` still returns its `SubagentRun` immediately: `run.started` resolves only after `ctx.agents.create()` has published the child (and rejects if publication never happens), while cancellation during creation is recorded and applied when a child exists; 3. drives the one-shot: `child.send(prompt)` then `await child.whenIdle()` (ordering matters — `send` enqueues synchronously, so `whenIdle` observes the queued work and resolves on the child's `running → idle` transition, never before the turn starts); there is deliberately NO re-prompt for a structured child that finished cleanly without calling `structured_output` — the shortfall maps to an `error` result for the parent; 4. reads the result, scoped to the child's OWN events (everything at or after `seedLength`, so a seeded child that produced no message of its own never returns the seeded parent's last message): the last `assistant/message` content (deep-cloned — the log is frozen) and the last `turn/end.reason` mapped to a `SubagentStopReason`. A structured run surfaces the captured value as `result.structured`; a structured child that finished cleanly WITHOUT ever capturing settles `error` (a clean finish without the demanded result is a failure, not a success with a missing field). -`dispose()` awaits creation or rollback and then delegates to `AgentHandle.dispose()` (stop and drain → remove agent → detach session → unwind scope); `cancel()` records its request even before publication and cancels the child immediately once available. A cancel landing before any `turn/end` still settles `aborted`, honoring the cancel contract rather than the generic no-turn `error`. +`SubagentService` waits for `run.started` before emitting `subagent/start`, so a synchronous start observer can resolve the published child with `ctx.agents.get(run.id)`; the result driver awaits the same boundary before sending the prompt. An attempt that never publishes rejects readiness and emits no false start/end pair; its result reports a deliberate cancel/dispose as `aborted` and propagates an infrastructure fault. `dispose()` awaits creation or rollback and then delegates to `AgentHandle.dispose()` (stop and drain → remove agent → detach session → unwind scope); `cancel()` records its request even before publication and cancels the child immediately once available. A cancel landing before any `turn/end` still settles `aborted`, honoring the cancel contract rather than the generic no-turn `error`. ### `InProcessRunOptions` diff --git a/packages/subagent/subagent-inprocess/src/index.ts b/packages/subagent/subagent-inprocess/src/index.ts index 61867e1b39..de3b042fe3 100644 --- a/packages/subagent/subagent-inprocess/src/index.ts +++ b/packages/subagent/subagent-inprocess/src/index.ts @@ -289,11 +289,23 @@ export function startInProcessRun( return created.agent })() + // Provider readiness is a distinct lifecycle boundary from accepting the + // request. It resolves only after the factory has published the child and + // returned its handle, so SubagentService can emit `subagent/start` while + // `ctx.agents.get(childId)` is guaranteed to resolve. The result path awaits + // THIS SAME promise immediately, which also observes a readiness rejection + // when the driver is invoked directly rather than through SubagentService. + const started: Promise = creation.then(() => undefined) + const result: Promise = (async () => { try { let liveChild: Agent try { - liveChild = await creation + await started + // `creation` assigns `child` before it fulfills, and `started` is its + // direct fulfillment projection. The cast records that local invariant + // without manufacturing an unreachable runtime branch. + liveChild = child as Agent } catch (error: unknown) { if (isManualDisposeRequested()) return { output: [], stopReason: 'aborted' } throw error instanceof Error ? error : new Error('subagent child creation failed with a non-Error value', { cause: error }) @@ -313,6 +325,7 @@ export function startInProcessRun( let disposing: Promise | undefined return { id: childId, + started, result, cancel(reason?: string): void { requestCancel(reason ?? 'subagent cancelled') diff --git a/packages/subagent/subagent-spawn/README.md b/packages/subagent/subagent-spawn/README.md index e133cb1e5b..e411d44ab0 100644 --- a/packages/subagent/subagent-spawn/README.md +++ b/packages/subagent/subagent-spawn/README.md @@ -6,7 +6,7 @@ The run mechanics live in the shared [`@deepseek-ai/dsh-subagent-inprocess`](../ ## What it does -`start(request)` delegates to `startInProcessRun(ctx, request, {})` with no seed: a fresh child agent with the parent's `cwd`/`parentSession` lineage and (by default) the parent's model. The driver creates one run-owner fiber under `parent.ctx`; parent teardown, this provider's teardown, and manual disposal all converge there before child publication. See the [driver README](../subagent-inprocess/README.md) for the full lifecycle (depth check, one-shot drive, result read, dispose). +`start(request)` delegates to `startInProcessRun(ctx, request, {})` with no seed: a fresh child agent with the parent's `cwd`/`parentSession` lineage and (by default) the parent's model. The driver creates one run-owner fiber under `parent.ctx`; parent teardown, this provider's teardown, and manual disposal all converge there before child publication. Its `run.started` boundary resolves only after the fresh child is published, so `subagent/start` observers see a live registry entry. See the [driver README](../subagent-inprocess/README.md) for the full lifecycle (depth check, one-shot drive, result read, dispose). ## Capabilities diff --git a/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts b/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts index a8dde937c0..3d23fca285 100644 --- a/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts +++ b/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts @@ -55,6 +55,25 @@ describe('dsh-subagent-spawn', () => { await run.dispose() }) + it('emits subagent/start only after the fresh child is published', async () => { + const { ctx, parent } = await setup([textResponse('child answer')]) + let childAtStart: ReturnType + ctx.on('subagent/start', (info) => { + if (info.provider === 'spawn') childAtStart = ctx.agents.get(info.id) + }) + + const run = ctx.subagents.start('spawn', { prompt: [{ type: 'text', text: 'do X' }], parent }) + // Creation is asynchronous; no lifecycle claim is made while the child is + // still inside its unpublished setup transaction. + expect(childAtStart).toBeUndefined() + await run.started + expect(childAtStart).toBe(ctx.agents.get(run.id)) + expect(childAtStart?.id).toBe(run.id) + + await run.result + await run.dispose() + }) + it('gives the child its OWN session (not the parent\'s), with parentSession lineage', async () => { const { ctx, parent } = await setup([textResponse('hi')]) const run = ctx.subagents.start('spawn', { prompt: [{ type: 'text', text: 'p' }], parent }) diff --git a/packages/subagent/subagent/README.md b/packages/subagent/subagent/README.md index 695bd8f952..e214ba58c6 100644 --- a/packages/subagent/subagent/README.md +++ b/packages/subagent/subagent/README.md @@ -18,10 +18,10 @@ Unlike the bash seam (one executor per context, second load throws), **multiple | Member | Semantics | |---|---| -| `registerProvider(provider)` | Register under `provider.name`. Throws `SubagentError('DUPLICATE_PROVIDER')` on a name clash. Effect-scoped (HMR-safe); returns the disposer. | -| `getProvider(name)` | Look up a provider (`undefined` if absent). | +| `registerProvider(provider)` | Register a frozen acceptance snapshot under `provider.name`; later caller mutation cannot change registry behavior or HMR cleanup, while `start` stays bound to the original provider receiver. Throws `SubagentError('DUPLICATE_PROVIDER')` on a name clash. Effect-scoped (HMR-safe); returns the disposer. | +| `getProvider(name)` | Look up the frozen registry snapshot (`undefined` if absent). | | `list()` | Registered provider names (insertion order). | -| `start(name, request)` | Resolve the provider (`NO_PROVIDER` if absent), validate every requested START-TIME capability (`UNSUPPORTED_CAPABILITY` for the first unmet one — before any child is created), then delegate to `provider.start` and emit `subagent/start` / `subagent/end` around the run. | +| `start(name, request)` | Resolve the provider (`NO_PROVIDER` if absent), validate every requested START-TIME capability (`UNSUPPORTED_CAPABILITY` for the first unmet one — before any child is created), then delegate to `provider.start`. Emit `subagent/start` only after `run.started` fulfills and the paired `subagent/end` after that started run settles; a pre-publication readiness rejection emits neither. | ## Capabilities: two kinds, discovered two ways @@ -32,9 +32,9 @@ Beside `capabilities` sits one DESCRIPTIVE fact, not validated by the service: ` ## Run lifecycle -`provider.start(request)` returns a `SubagentRun`: a handle with a `result` promise, `cancel()`, `dispose()`, and the optional runtime methods. `result` resolves with a `SubagentResult` (`output`, optional `structured`, `stopReason`) — it does **not** reject on a child-level failure (a model/transport failure resolves with `stopReason: 'error'`), so the consumer maps a non-`completed` reason to an `isError` tool result. The consumer MUST `dispose()` on every path (success, error, abort) to reach child quiescence and avoid leaking an idle child / session. +`provider.start(request)` returns a `SubagentRun`: a handle with `started` (the publication/readiness promise), `result` (the terminal outcome), `cancel()`, `dispose()`, and the optional runtime methods. `started` resolves only after the provider has established a real child and rejects if the attempt fails or is cancelled first. `result` resolves with a `SubagentResult` (`output`, optional `structured`, `stopReason`) — it does **not** reject on a child-level failure (a model/transport failure resolves with `stopReason: 'error'`), so the consumer maps a non-`completed` reason to an `isError` tool result. The consumer MUST `dispose()` on every path (success, error, abort) to reach child quiescence and avoid leaking an idle child / session. -The service also announces provider lifecycle: `subagent/provider-added` (the live provider) fires after a registration and `subagent/provider-removed` (the name) after an unregistration, so a consumer deriving state from a named provider (the model-facing tool wording) mirrors registry membership instead of assuming load order — the cordis Loader starts sibling plugins concurrently, so "listed earlier" does not mean "registered earlier". The service emits `subagent/start` (payload `SubagentRunInfo`) and `subagent/end` (payload `SubagentRunEndInfo`) around the run — both **observe-only** (plain `emit`s; `subagent/end` fires from a detached `.then` and awaits no listener). `subagent/end` carries `lastAssistantMessage` (a deep clone of the child's final `output`) on the settle path, absent when the run rejected at the infrastructure level. The clone keeps the surface observe-only: the end emit fires from a detached `.then` before the caller's `await run.result` resumes, so a shared reference would let a mutating listener corrupt the caller's result. A `subagent/start` listener can still reach the live child via `ctx.agents.get(info.id)`; a `subagent/end` listener can only observe (the run has settled). Any run-affecting decision (continuation, injection that changes the run) is out of scope for this observe-only surface. +The service also announces provider lifecycle: `subagent/provider-added` (the frozen registry snapshot) fires after a registration and `subagent/provider-removed` (the accepted name) after an unregistration, so a consumer deriving state from a named provider (the model-facing tool wording) mirrors registry membership instead of assuming load order — the cordis Loader starts sibling plugins concurrently, so "listed earlier" does not mean "registered earlier". Run lifecycle is gated by provider readiness: `subagent/start` (payload `SubagentRunInfo`) fires only after `run.started` fulfills, and `subagent/end` (payload `SubagentRunEndInfo`) fires only for that announced run; readiness rejection emits neither. For spawn/fork, the start listener can resolve the published child via `ctx.agents.get(info.id)`; a remote provider need not have a local registry entry. Both events are **observe-only** plain emits. The service observes `result` immediately even while readiness is pending, clones its output before the caller can mutate it, and buffers that end payload until start has fired; a rejecting result cannot become an unhandled detached promise, start always precedes end, and a listener cannot corrupt the caller's result. `subagent/end` carries the cloned output as `lastAssistantMessage` on the settle path and omits it on infrastructure rejection. Any run-affecting decision is out of scope for this observe-only surface. ## Scope (first cut) diff --git a/packages/subagent/subagent/src/index.ts b/packages/subagent/subagent/src/index.ts index 45287271c6..e1f4fac594 100644 --- a/packages/subagent/subagent/src/index.ts +++ b/packages/subagent/subagent/src/index.ts @@ -69,7 +69,7 @@ declare module 'cordis' { * tool wording in `dsh-tool-subagent`) react HERE instead of assuming load * order — the cordis Loader starts sibling plugins concurrently, so * "listed earlier in cordis.yml" does not mean "registered earlier". - * @param provider - the provider that just registered, live in the registry. + * @param provider - the registry's frozen acceptance snapshot of the provider. * @mode emit */ 'subagent/provider-added'(provider: SubagentProvider): void @@ -85,8 +85,11 @@ declare module 'cordis' { */ 'subagent/provider-removed'(name: string): void /** - * A subagent run started — emitted after the provider is resolved and its - * capabilities validated, as the child run begins. Paired with + * A subagent run started — emitted only after {@link SubagentRun.started} + * fulfills, when the provider has established a live child. For an + * in-process provider, `ctx.agents.get(info.id)` is therefore guaranteed to + * resolve during this notification. A readiness rejection emits neither + * lifecycle event; every emitted start is paired with * {@link Events['subagent/end']}. * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed * by the DELEGATING PARENT — a listener registered through the parent's @@ -97,8 +100,10 @@ declare module 'cordis' { */ 'subagent/start'(this: Scoped, info: SubagentRunInfo): void /** - * A subagent run settled — emitted when {@link SubagentRun.result} - * resolves (any stop reason). Paired with {@link Events['subagent/start']}. + * A started subagent run settled — emitted when {@link SubagentRun.result} + * resolves (any stop reason) or rejects (reported as `error`). Paired with + * {@link Events['subagent/start']}; a run whose readiness rejected emits + * neither event. * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed * by the DELEGATING PARENT — a listener registered through the parent's * `agent.ctx` observes only its own delegations; a plain plugin listener @@ -161,21 +166,43 @@ export class SubagentService extends Service { /** * Register a provider under its `provider.name`. Throws {@link SubagentError} - * (`DUPLICATE_PROVIDER`) if the name is already taken. Effect-scoped: disposed - * with the calling fiber (HMR-safe). Emits `subagent/provider-added` after - * the registration and `subagent/provider-removed` on unregistration, so - * consumers can mirror provider lifecycle instead of assuming load order. + * (`DUPLICATE_PROVIDER`) if the name is already taken. The registry snapshots + * the name, static descriptors, and `start` callback identity at acceptance; + * later caller mutation cannot change lookup, capability validation, consumer + * wording, dispatch, or HMR cleanup. The callback remains bound to the + * original provider object, so provider-owned mutable state stays live. + * Effect-scoped: disposed with the calling fiber (HMR-safe). Emits + * `subagent/provider-added` after the registration and + * `subagent/provider-removed` on unregistration, so consumers can mirror + * provider lifecycle instead of assuming load order. * @param provider - the provider; its `name` is the registry key. * @returns the disposer that unregisters the provider. The exact * Cordis effect disposer (single-shot): composite (generator) effects may * yield it directly — exact identity nests the teardown in order. */ registerProvider(provider: SubagentProvider): () => Promise | void { + // Snapshot the accepted registration contract before entering the effect. + // Cleanup must never re-read caller-owned `provider.name`: an HMR host may + // mutate or reuse the provider object before its old fiber unloads. Binding + // preserves the provider method's receiver while making replacement of the + // public callback field after registration inert. + const capabilities: SubagentCapabilities = Object.freeze({ + outputSchema: provider.capabilities.outputSchema, + depthLimit: provider.capabilities.depthLimit, + toolFilter: provider.capabilities.toolFilter, + persona: provider.capabilities.persona, + }) + const snapshot: SubagentProvider = Object.freeze({ + name: provider.name, + capabilities, + inheritsParentContext: provider.inheritsParentContext, + start: provider.start.bind(provider), + }) const dispose = this.ctx.effect(function* (this: SubagentService) { - if (this.providers.has(provider.name)) { - throw new SubagentError(`a subagent provider named "${provider.name}" is already registered`, 'DUPLICATE_PROVIDER') + if (this.providers.has(snapshot.name)) { + throw new SubagentError(`a subagent provider named "${snapshot.name}" is already registered`, 'DUPLICATE_PROVIDER') } - this.providers.set(provider.name, provider) + this.providers.set(snapshot.name, snapshot) // Yield the rollback BEFORE emitting `subagent/provider-added`: a // throwing added-listener then unregisters the provider (and announces // the removal) instead of leaking it into the registry. The removal @@ -183,10 +210,10 @@ export class SubagentService extends Service { // it runs inside this disposer, where a propagating subscriber would // disrupt the backend fiber's teardown and starve later mirrors. yield () => { - this.providers.delete(provider.name) - this.emitLifecycle('subagent/provider-removed', provider.name) + this.providers.delete(snapshot.name) + this.emitLifecycle('subagent/provider-removed', snapshot.name) } - this.ctx.emit('subagent/provider-added', provider) + this.ctx.emit('subagent/provider-added', snapshot) }.bind(this), 'subagents.registerProvider()') // The EXACT cordis effect disposer, not a wrapper: a composite (generator) // effect that owns a teardown ORDER must be able to yield THIS function — @@ -198,9 +225,10 @@ export class SubagentService extends Service { } /** - * Look up a registered provider by name (`undefined` if absent). - * @param name - the provider name as registered. - * @returns the provider, or undefined when the name is unknown. + * Look up the registry's frozen provider snapshot by its accepted name + * (`undefined` if absent). + * @param name - the provider name accepted at registration. + * @returns the frozen acceptance snapshot, or undefined when the name is unknown. */ getProvider(name: string): SubagentProvider | undefined { return this.providers.get(name) @@ -219,8 +247,9 @@ export class SubagentService extends Service { * `NO_PROVIDER` if absent), validates every requested START-TIME capability * against {@link SubagentProvider.capabilities} (throws `UNSUPPORTED_CAPABILITY` * for the first unmet one — fail loud, before any child is created), then - * delegates to {@link SubagentProvider.start} and emits `subagent/start` / - * `subagent/end` around the run. + * delegates to {@link SubagentProvider.start}, then emits `subagent/start` / + * `subagent/end` only after the run's readiness boundary fulfills. A provider + * that fails before establishing a child emits neither event. * @param name - the provider to run on. * @param request - the child's prompt, capabilities, and options. * @returns the live run (its `result` resolves when the child settles). @@ -252,46 +281,63 @@ export class SubagentService extends Service { ...request.persona !== undefined ? { persona: request.persona } : {}, } const run = provider.start(accepted) - // Emit `subagent/start` with PER-LISTENER containment (see {@link emitLifecycle}): - // the run is already live, so neither a throwing subscriber escaping - // `start()` (the caller would never receive the run to dispose it — a leaked - // child) NOR one bad subscriber starving the listeners after it is - // acceptable. `ctx.emit` halts the dispatch on the first throw, so a single - // surrounding try/catch is not enough — each listener is invoked and - // contained individually. - this.emitLifecycle('subagent/start', { provider: name, id: run.id }, parent) - // Emit `subagent/end` when the run settles. The result promise does not - // reject on a child-level failure (it resolves with stopReason 'error'), - // so a rejection here is an infrastructure fault — surface its stop reason - // as 'error' for the telemetry event without swallowing the rejection - // (the consumer still observes it via `run.result`). On the resolve path the - // child's final output rides on the event (lastAssistantMessage); on the - // reject path there is no SubagentResult, so only the stop reason is known. - // Per-listener containment also keeps a thrown `subagent/end` listener from - // becoming an unhandled rejection on this detached `.then`. + + // Observe result settlement IMMEDIATELY, before waiting on readiness. A + // provider may fail both promises in the same turn; deferring the rejection + // handler until `started` fulfilled would leave `result` transiently + // unhandled. The settled event is buffered until start has been announced, + // preserving start → end order even for an already-settled scripted run. + let readiness: 'pending' | 'started' | 'failed' = 'pending' + let pendingEnd: SubagentRunEndInfo | undefined + const deliverEnd = (info: SubagentRunEndInfo): void => { + if (readiness === 'started') this.emitLifecycle('subagent/end', info, parent) + else if (readiness === 'pending') pendingEnd = info + // A pre-publication readiness failure has no lifecycle pair; result + // remains observable by the run's consumer, but telemetry must not claim + // that a child started. + } void run.result.then( (result) => { - // Deep-clone the output onto the event: this detached `.then` runs BEFORE - // the caller's own `await run.result` continuation, so handing listeners - // the SAME array reference the caller consumes would let a mutating - // `subagent/end` listener corrupt the caller's SubagentResult.output — - // breaking the observe-only contract. A snapshot makes the event a - // read-only view, not a shared handle. The clone is wrapped: it runs - // inside `onFulfilled`, OUTSIDE emitLifecycle's per-listener containment, - // so an uncloneable value (a future non-serializable content-block type, - // or a contract-violating result with no `output`) would otherwise become - // an unhandled rejection on this detached `.then`. On clone failure, log - // and emit the event WITHOUT lastAssistantMessage rather than dropping the - // whole `subagent/end`. + // Snapshot before the caller's own `await run.result` continuation. Even + // when readiness is still pending, buffering the clone rather than the + // caller-owned result keeps the eventual observe-only event immutable + // with respect to consumer mutation. let lastAssistantMessage: SubagentResult['output'] | undefined try { lastAssistantMessage = structuredClone(result.output) } catch (error: unknown) { this.ctx.logger.warn(`subagent: could not clone ${name} output for subagent/end: ${String(error)}`) } - this.emitLifecycle('subagent/end', { provider: name, id: run.id, stopReason: result.stopReason, ...lastAssistantMessage !== undefined ? { lastAssistantMessage } : {} }, parent) + deliverEnd({ + provider: name, + id: run.id, + stopReason: result.stopReason, + ...lastAssistantMessage !== undefined ? { lastAssistantMessage } : {}, + }) + }, + () => { deliverEnd({ provider: name, id: run.id, stopReason: 'error' }) }, + ) + + // Readiness is the publication boundary owned by the provider. For + // in-process runs, fulfillment means the agent registry already contains + // `run.id`; for ACP it means the remote session exists. Emit start with + // per-listener containment, then flush an outcome that settled unusually + // early. A readiness rejection is handled here and deliberately emits no + // false start/end pair; the result path above remains independently handled. + void run.started.then( + () => { + readiness = 'started' + this.emitLifecycle('subagent/start', { provider: name, id: run.id }, parent) + if (pendingEnd !== undefined) { + const info = pendingEnd + pendingEnd = undefined + this.emitLifecycle('subagent/end', info, parent) + } + }, + () => { + readiness = 'failed' + pendingEnd = undefined }, - () => { this.emitLifecycle('subagent/end', { provider: name, id: run.id, stopReason: 'error' }, parent) }, ) return run } diff --git a/packages/subagent/subagent/src/types.ts b/packages/subagent/subagent/src/types.ts index a95fbae623..003d6a6a3d 100644 --- a/packages/subagent/subagent/src/types.ts +++ b/packages/subagent/subagent/src/types.ts @@ -142,8 +142,16 @@ export interface SubagentResult { * presence of the method IS the capability — narrow before calling. */ export interface SubagentRun { - /** The child agent's id (use `ctx.agents.get(id)` to reach the live child). */ + /** The child agent's id (local in-process runs publish it in `ctx.agents`; remote transports need not). */ readonly id: AgentId + /** + * The provider's publication/readiness boundary. Resolves only after a real + * child is established: an in-process agent is live in `ctx.agents`, or a + * remote transport has created its child session. Rejects when the attempt + * fails or is cancelled before that boundary. The service emits the paired + * `subagent/start`/`subagent/end` lifecycle only after this fulfills. + */ + readonly started: Promise /** * Resolves with the child's terminal {@link SubagentResult} when the run * settles. Does NOT reject on a child-level failure — a model/transport @@ -176,7 +184,9 @@ export interface SubagentRun { * A subagent backend: one transport for running a child agent (in-process * spawn/fork, ACP to another process, …). Implementations register under a * unique name via {@link SubagentService.registerProvider}; multiple providers - * coexist in one context (unlike the single-implementation bash seam). + * coexist in one context (unlike the single-implementation bash seam). The + * service freezes the public descriptor and callback identity at registration; + * the captured `start` remains bound to the original provider receiver. */ export interface SubagentProvider { /** Unique registry name (e.g. `spawn`, `fork`, `acp`). */ @@ -194,9 +204,12 @@ export interface SubagentProvider { */ readonly inheritsParentContext: boolean /** - * Start a child run. The service has already validated that every requested - * start-time capability is supported, so an implementation may assume e.g. - * `request.maxDepth` is honorable when present. + * Start preparing a child run and return its handle synchronously. The + * service has already validated that every requested start-time capability + * is supported, so an implementation may assume e.g. `request.maxDepth` is + * honorable when present. The returned {@link SubagentRun.started} must mark + * the real publication/readiness boundary; the result path must observe that + * promise immediately so a pre-start rejection cannot become unhandled. */ start(request: SubagentStartRequest): SubagentRun } diff --git a/packages/subagent/subagent/tests/service.spec.ts b/packages/subagent/subagent/tests/service.spec.ts index 3a16b19e22..7b9e828c37 100644 --- a/packages/subagent/subagent/tests/service.spec.ts +++ b/packages/subagent/subagent/tests/service.spec.ts @@ -34,6 +34,7 @@ class StubProvider implements SubagentProvider { this.startCount++ return { id: AgentId(`child:${this.name}:${request.parent.id}`), + started: Promise.resolve(), result: Promise.resolve(this.result), cancel() {}, async dispose() {}, @@ -106,7 +107,7 @@ describe('SubagentService', () => { ctx.subagents.registerProvider(provider) expect(ctx.subagents.list()).toEqual(['alpha']) - expect(ctx.subagents.getProvider('alpha')).toBe(provider) + expect(ctx.subagents.getProvider('alpha')).toMatchObject({ name: 'alpha' }) const run = ctx.subagents.start('alpha', baseRequest()) expect(provider.startCount).toBe(1) @@ -162,6 +163,75 @@ describe('SubagentService', () => { expect(ctx.subagents.list()).toEqual([]) }) + it('snapshots a provider registration so caller mutation cannot corrupt dispatch or HMR cleanup', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const capabilities: SubagentCapabilities = { + outputSchema: true, + depthLimit: true, + toolFilter: true, + persona: true, + } + const provider = new StubProvider('stable', capabilities) + const added: SubagentProvider[] = [] + const removed: string[] = [] + ctx.on('subagent/provider-added', registered => void added.push(registered)) + ctx.on('subagent/provider-removed', name => void removed.push(name)) + const owner = await ctx.plugin({ + name: 'mutable-provider-owner', + inject: ['subagents'], + apply(pluginCtx: Context) { + pluginCtx.subagents.registerProvider(provider) + }, + }) + const accepted = ctx.subagents.getProvider('stable') + + const mutable = provider as unknown as { + name: string + capabilities: SubagentCapabilities + inheritsParentContext: boolean + start: SubagentProvider['start'] + } + mutable.name = 'mutated' + capabilities.outputSchema = false + capabilities.depthLimit = false + capabilities.toolFilter = false + capabilities.persona = false + mutable.capabilities = NO_CAPS + mutable.inheritsParentContext = true + const replacementStart = vi.fn((_request: SubagentStartRequest): SubagentRun => { + throw new Error('replacement start must not run') + }) + mutable.start = replacementStart + + expect(added).toEqual([accepted]) + expect(accepted).not.toBe(provider) + expect(Object.isFrozen(accepted)).toBe(true) + expect(Object.isFrozen(accepted?.capabilities)).toBe(true) + expect(accepted).toMatchObject({ + name: 'stable', + capabilities: { outputSchema: true, depthLimit: true, toolFilter: true, persona: true }, + inheritsParentContext: false, + }) + expect(ctx.subagents.list()).toEqual(['stable']) + expect(ctx.subagents.getProvider('mutated')).toBeUndefined() + + const run = ctx.subagents.start('stable', baseRequest({ + outputSchema: { type: 'object', properties: { answer: { type: 'string' } } }, + maxDepth: 2, + toolFilter: { deny: ['bash'] }, + persona: 'reviewer', + })) + await expect(run.result).resolves.toMatchObject({ stopReason: 'completed' }) + expect(provider.startCount).toBe(1) + expect(replacementStart).not.toHaveBeenCalled() + + await owner.dispose() + expect(removed).toEqual(['stable']) + expect(ctx.subagents.list()).toEqual([]) + expect(() => ctx.subagents.registerProvider(new StubProvider('stable'))).not.toThrow() + }) + it('re-registers a name after its prior registration is disposed (not wedged)', async () => { const ctx = new Context() await ctx.plugin(SubagentService) @@ -220,6 +290,7 @@ describe('SubagentService', () => { ctx.on('subagent/end', ended) const run = ctx.subagents.start('events', baseRequest()) + await run.started expect(started).toHaveBeenCalledWith(expect.objectContaining({ provider: 'events', id: run.id })) await run.result @@ -228,6 +299,67 @@ describe('SubagentService', () => { expect(ended).toHaveBeenCalledWith(expect.objectContaining({ provider: 'events', id: run.id, stopReason: 'completed' })) }) + it('waits for provider readiness and observes an early result rejection without reordering lifecycle', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const readiness = Promise.withResolvers() + ctx.subagents.registerProvider({ + name: 'delayed-start', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: () => ({ + id: AgentId('delayed-child'), + started: readiness.promise, + // Already rejected: SubagentService must attach its result handler in + // the same synchronous start() call, before awaiting readiness. + result: Promise.reject(new Error('early infrastructure fault')), + cancel() {}, + async dispose() {}, + }), + }) + const lifecycle: string[] = [] + ctx.on('subagent/start', () => void lifecycle.push('start')) + ctx.on('subagent/end', info => void lifecycle.push(`end:${info.stopReason}`)) + + const run = ctx.subagents.start('delayed-start', baseRequest()) + await expect(run.result).rejects.toThrow('early infrastructure fault') + expect(lifecycle).toEqual([]) + + readiness.resolve(undefined) + await run.started + expect(lifecycle).toEqual(['start', 'end:error']) + }) + + it('emits no lifecycle pair when readiness rejects before a child exists', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const readiness = Promise.withResolvers() + const result = Promise.withResolvers() + ctx.subagents.registerProvider({ + name: 'never-started', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: () => ({ + id: AgentId('never-started-child'), + started: readiness.promise, + result: result.promise, + cancel() {}, + async dispose() {}, + }), + }) + const lifecycle = vi.fn() + ctx.on('subagent/start', lifecycle) + ctx.on('subagent/end', lifecycle) + + const run = ctx.subagents.start('never-started', baseRequest()) + readiness.reject(new Error('publication rolled back')) + await expect(run.started).rejects.toThrow('publication rolled back') + result.resolve({ output: [], stopReason: 'aborted' }) + await run.result + await Promise.resolve() + expect(lifecycle).not.toHaveBeenCalled() + }) + it('pins start and end to the parent accepted at start despite caller mutation', async () => { const ctx = new Context() await ctx.plugin(SubagentService) @@ -241,6 +373,7 @@ describe('SubagentService', () => { acceptedRequest = accepted return { id: AgentId('deferred-child'), + started: Promise.resolve(), result: gate.promise, cancel() {}, async dispose() {}, @@ -282,6 +415,7 @@ describe('SubagentService', () => { ctx.on('subagent/end', ended) const run = ctx.subagents.start('enriched', baseRequest()) + await run.started expect(started).toHaveBeenCalledWith(expect.objectContaining({ provider: 'enriched', id: run.id })) await run.result @@ -331,6 +465,7 @@ describe('SubagentService', () => { inheritsParentContext: false, start: () => ({ id: AgentId('rej-child'), + started: Promise.resolve(), result: Promise.reject(new Error('infra fault')), cancel() {}, dispose: async () => {}, @@ -365,6 +500,7 @@ describe('SubagentService', () => { inheritsParentContext: false, start: () => ({ id: AgentId('unclone-child'), + started: Promise.resolve(), result: Promise.resolve({ output: uncloneable, stopReason: 'completed' } as SubagentResult), cancel() {}, dispose: async () => {}, @@ -395,6 +531,7 @@ describe('SubagentService', () => { inheritsParentContext: false, start: () => ({ id: AgentId('rej-child'), + started: Promise.resolve(), result: Promise.reject(new Error('infra fault')), cancel() {}, dispose: async () => {}, @@ -424,6 +561,7 @@ describe('SubagentService', () => { const run = ctx.subagents.start('contain', baseRequest()) expect(run.id).toBeDefined() + await run.started expect(second).toHaveBeenCalledWith(expect.objectContaining({ provider: 'contain', id: run.id })) await expect(run.result).resolves.toMatchObject({ stopReason: 'completed' }) }) diff --git a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts index 9d9941fdff..95d26dabdf 100644 --- a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts +++ b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts @@ -115,6 +115,7 @@ describe('dsh-tool-subagent', () => { inheritsParentContext: false, start: () => ({ id: AgentId('weird-child'), + started: Promise.resolve(), result: Promise.resolve({ output: [{ type: 'text', text: 'partial' }], stopReason: 'frobnicated' as never }), cancel() {}, dispose: async () => {}, @@ -143,6 +144,7 @@ describe('dsh-tool-subagent', () => { seen = request return { id: AgentId('capture-child'), + started: Promise.resolve(), result: Promise.resolve({ output: [{ type: 'text', text: 'ok' }], stopReason: 'completed' as const }), cancel() {}, dispose: async () => {}, @@ -173,6 +175,7 @@ describe('dsh-tool-subagent', () => { seen = request return { id: AgentId('bare-child'), + started: Promise.resolve(), result: Promise.resolve({ output: [{ type: 'text', text: 'ok' }], stopReason: 'completed' as const }), cancel() {}, dispose: async () => {}, @@ -301,6 +304,7 @@ describe('dsh-tool-subagent', () => { inheritsParentContext: false, start: () => ({ id: AgentId('spy-child'), + started: Promise.resolve(), result: Promise.resolve({ output: [{ type: 'text', text: 'ok' }], stopReason: 'completed' as const }), cancel() {}, dispose: async () => void disposed(), @@ -324,6 +328,7 @@ describe('dsh-tool-subagent', () => { inheritsParentContext: false, start: () => ({ id: AgentId('spy-child'), + started: Promise.resolve(), result: Promise.resolve({ output: [], stopReason: 'error' as const }), cancel() {}, dispose: async () => void disposed(), @@ -351,6 +356,7 @@ describe('dsh-tool-subagent', () => { const result = new Promise<{ output: never[]; stopReason: 'aborted' }>((res) => { resolveResult = res }) return { id: AgentId('spy-child'), + started: Promise.resolve(), result, cancel: () => { cancelled() @@ -398,6 +404,7 @@ describe('dsh-tool-subagent', () => { const result = new Promise<{ output: never[]; stopReason: 'aborted' }>((res) => { resolveResult = res }) return { id: AgentId('spy-child'), + started: Promise.resolve(), result, cancel: () => { cancelled() @@ -466,6 +473,7 @@ describe('dsh-tool-subagent', () => { seen = request return { id: AgentId('capture2-child'), + started: Promise.resolve(), result: Promise.resolve({ output: [{ type: 'text', text: 'ok' }], stopReason: 'completed' as const }), cancel() {}, dispose: async () => {}, @@ -499,6 +507,7 @@ describe('dsh-tool-subagent', () => { seen = request return { id: AgentId('capture3-child'), + started: Promise.resolve(), result: Promise.resolve({ output: [{ type: 'text', text: 'ok' }], stopReason: 'completed' as const }), cancel() {}, dispose: async () => {}, @@ -529,6 +538,7 @@ describe('dsh-tool-subagent', () => { seen = request return { id: AgentId('capture4-child'), + started: Promise.resolve(), result: Promise.resolve({ output: [{ type: 'text', text: 'ok' }], stopReason: 'completed' as const }), cancel() {}, dispose: async () => {}, diff --git a/packages/support/subagent-mock/src/index.ts b/packages/support/subagent-mock/src/index.ts index e72765ba4d..715c7451d7 100644 --- a/packages/support/subagent-mock/src/index.ts +++ b/packages/support/subagent-mock/src/index.ts @@ -66,6 +66,9 @@ class MockSubagentProvider implements SubagentProvider { return { id, + // A scripted run has no asynchronous publication phase; it is ready as + // soon as the provider returns the handle. + started: Promise.resolve(), result: Promise.resolve().then(resultFor), cancel() { cancelled = true diff --git a/packages/ui/user-approval/README.md b/packages/ui/user-approval/README.md index 26ec82bbc9..821e98638f 100644 --- a/packages/ui/user-approval/README.md +++ b/packages/ui/user-approval/README.md @@ -2,7 +2,7 @@ User-approval seam. Owns the `ctx.approval` service ([`ApprovalService`](src/index.ts)) and the one-shot permission vocabulary the harness shares: `ApprovalRequest` (agent + tool identity + reason + abort signal), the closed `ApprovalOutcome` union (`allowed-once` / `rejected` / `cancelled` / `unavailable`), the `ApprovalRequestId` brand pairing the two log-only audit events (`approval/asked` / `approval/decided`), and the `approval/request` waterfall the answerers listen on. It lives in the UI group because its purpose is human permission, while remaining channel-neutral: it depends only on Cordis and core vocabulary packages, never on a concrete UI. -The contract in one line: `ctx.approval.request(req)` puts exactly one question — "may this specific action proceed?" — to whatever answerers the deployment composed, and always resolves to an outcome, never rejects: an aborted signal yields `cancelled`, a throwing or missing answerer yields `unavailable`, and `allowed-once` is a grant for the single asked-about action, never a class of future ones. The one precondition: ask from inside an open turn — the audit pair is turn-enclosed by contract (the turn is the durable log's commit/replay boundary; a bare event between turns is crash-tail garbage on reload), so an idle ask throws before appending anything. +The contract in one line: `ctx.approval.request(req)` puts exactly one question — "may this specific action proceed?" — to whatever answerers the deployment composed, and always resolves to an outcome, never rejects: an aborted signal yields `cancelled`, a throwing or missing answerer yields `unavailable`, and `allowed-once` is a grant for the single asked-about action, never a class of future ones. Acceptance is synchronous: the service shallow-freezes a detached request record before dispatch, preserving the exact `agent` and `AbortSignal` identities while making later caller mutation unable to redirect scope, payload, cancellation, or either audit event. Session observers run after an event enters the append-only log; if one throws, the service recognizes that the audit is already authoritative, contains the observer failure, and completes the pair. The one precondition: ask from inside an open turn — the audit pair is turn-enclosed by contract (the turn is the durable log's commit/replay boundary; a bare event between turns is crash-tail garbage on reload), so an idle ask throws before appending anything. The service is the mechanism, answerers are the policy. Answerers are `approval/request` waterfall listeners occupying a single decision slot: answer for an agent you own by returning an outcome without calling `next()`, or delegate an agent you don't recognize by calling `next()` — the chain's built-in default is `unavailable`, so a deployment with no answerer (headless, CI) fails closed with zero configuration. Dispatch is keyed by `req.agent`: a listener registered through `agent.ctx` receives only that agent's questions, while a plain-context listener receives every agent's. Registration order across sibling plugins is not load-order deterministic; compose one terminal answerer per deployment and use `prepend` listeners only for decide-or-delegate gates. diff --git a/packages/ui/user-approval/src/index.ts b/packages/ui/user-approval/src/index.ts index 656f799d6a..4fb50ba23b 100644 --- a/packages/ui/user-approval/src/index.ts +++ b/packages/ui/user-approval/src/index.ts @@ -63,7 +63,10 @@ declare module 'cordis' { * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`) keys the carrier by `req.agent`: a * listener registered through `agent.ctx` receives only that agent's * questions, while a plain-context listener receives every agent's. - * @param req - the pending decision (agent, tool identity, reason, signal). + * `req` is the service's shallow-frozen acceptance snapshot: later caller + * mutation cannot redirect the question, while the `agent` and `signal` + * identity capabilities remain exact. + * @param req - the accepted decision (agent, tool identity, reason, signal). * @mode waterfall */ 'approval/request'(this: Scoped, req: ApprovalRequest, next: () => Promise): Promise @@ -234,7 +237,9 @@ export function setApprovalPolicy(session: Session, policy: ApprovalPolicy): voi * for an answerer to present it and for the audit events to reconstruct what * was asked — it deliberately does NOT carry tool arguments: a UI answerer * attaches the prompt to the already-streamed tool call via `callId` instead - * of re-rendering the call. + * of re-rendering the call. `request()` synchronously copies and shallow-freezes + * this record before crossing an asynchronous boundary. Scalar fields are + * detached; the `agent` and `signal` identity capabilities are preserved. */ export interface ApprovalRequest { /** @@ -364,14 +369,36 @@ export class ApprovalService extends Service { * Within that precondition it always resolves to an outcome, never rejects: * an aborted signal yields `'cancelled'`, a missing or throwing answerer * yields `'unavailable'` (fail closed), and a rogue non-vocabulary return - * value is normalized to `'unavailable'`. Appends the + * value is normalized to `'unavailable'`. The caller-owned request is + * synchronously snapshotted, so later mutation cannot split routing, + * dispatch payload, cancellation, or the audit pair across agents/sessions. + * Appends the * `approval/asked`/`approval/decided` audit pair (log-only) around the - * decision regardless of outcome. + * decision regardless of outcome. A synchronous session observer failure + * after an audit event entered the append-only log is contained; the event + * is already authoritative, so the pair still completes and the request + * still resolves. * @param req - the pending decision (agent, tool identity, reason, signal). * @returns the closed outcome; `'allowed-once'` is the only grant. */ async request(req: ApprovalRequest): Promise { - if (!hasOpenTurn(req.agent.session.events)) { + // Accept one immutable request shape before the first async boundary. The + // caller retains its record and may mutate it as soon as this async method + // returns; identity capabilities stay live, but the record is never reread. + const agent = req.agent + const toolName = req.toolName + const callId = req.callId + const reason = req.reason + const signal = req.signal + const accepted: Readonly = Object.freeze({ + agent, + toolName, + ...callId !== undefined ? { callId } : {}, + ...reason !== undefined ? { reason } : {}, + ...signal !== undefined ? { signal } : {}, + }) + const session = accepted.agent.session + if (!hasOpenTurn(session.events)) { throw new Error( 'approval.request() outside an open turn: the approval/asked + approval/decided audit pair ' + 'must be turn-enclosed (a bare event between turns is crash-tail garbage on reload). ' @@ -379,17 +406,47 @@ export class ApprovalService extends Service { ) } const id = ApprovalRequestId(randomUUID()) - req.agent.session.append('approval/asked', { - id, - toolName: req.toolName, - ...req.callId !== undefined ? { callId: req.callId } : {}, - ...req.reason !== undefined ? { reason: req.reason } : {}, + this.appendAudit(session, 'approval/asked', id, () => { + session.append('approval/asked', { + id, + toolName: accepted.toolName, + ...accepted.callId !== undefined ? { callId: accepted.callId } : {}, + ...accepted.reason !== undefined ? { reason: accepted.reason } : {}, + }) + }) + const outcome = await this.decide(accepted) + this.appendAudit(session, 'approval/decided', id, () => { + session.append('approval/decided', { id, outcome }) }) - const outcome = await this.decide(req) - req.agent.session.append('approval/decided', { id, outcome }) return outcome } + /** + * Append one audit event while distinguishing a post-append observer throw + * from a failure that prevented the event entering the log. `Session.append` + * pushes first and then notifies synchronously, so log growth proves the + * event is already authoritative; that observer failure is reported and + * contained so it cannot reject the approval or suppress its matching event. + * @param session - the captured session receiving both audit events. + * @param type - the audit event currently being appended. + * @param id - the request id, used to identify the contained failure. + * @param append - the single concrete `Session.append` call. + */ + private appendAudit( + session: Session, + type: 'approval/asked' | 'approval/decided', + id: ApprovalRequestId, + append: () => void, + ): void { + const length = session.events.length + try { + append() + } catch (error) { + if (session.events.length === length) throw error + this.ctx.logger.warn(`approval request "${id}": ${type} observer threw after the event was appended`) + } + } + /** * The session's effective policy: its own `approval/policy` fold, else the * configured default (the schema already defaulted an omitted policy to @@ -401,8 +458,8 @@ export class ApprovalService extends Service { return effectiveApprovalPolicy(agent.session.events) ?? this.config.policy ?? 'ask' } - /** Dispatch the waterfall, contained and raced against `req.signal`. */ - private async decide(req: ApprovalRequest): Promise { + /** Dispatch the waterfall, contained and raced against the accepted signal. */ + private async decide(req: Readonly): Promise { if (req.signal?.aborted) return 'cancelled' // The 'never' policy is decided HERE, before any dispatch: a listener // registered with `prepend: true` after this service mounts would sit diff --git a/packages/ui/user-approval/tests/approval.spec.ts b/packages/ui/user-approval/tests/approval.spec.ts index 6b405e10a7..0e69b8dfd7 100644 --- a/packages/ui/user-approval/tests/approval.spec.ts +++ b/packages/ui/user-approval/tests/approval.spec.ts @@ -3,7 +3,7 @@ import { Context } from 'cordis' import type { Agent } from '@deepseek-ai/dsh-agent' import { CallId } from '@deepseek-ai/dsh-llm' import { carrierKeyOf, scopeHost } from '@deepseek-ai/dsh-scope' -import { Session, SessionId } from '@deepseek-ai/dsh-session' +import SessionStore, { Session, SessionId } from '@deepseek-ai/dsh-session' import type { SessionEvent } from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ApprovalService, { ApprovalOutcome, ApprovalRequest, effectiveApprovalPolicy, setApprovalPolicy } from '@deepseek-ai/dsh-user-approval' @@ -78,6 +78,138 @@ describe('ApprovalService.request', () => { expect(Object.keys(appended[0]?.data ?? {}).sort()).toEqual(['id', 'toolName']) }) + it('snapshots request identity, scope, payload, and audit before deferred dispatch', async () => { + const ctx = await mounted() + const { agent: acceptedAgent, appended: acceptedAudit } = fakeAgent() + const { agent: replacementAgent, appended: replacementAudit } = fakeAgent() + const host = await scopeHost(ctx, ['approval']) + const acceptedScope = host.mint(acceptedAgent) + const replacementScope = host.mint(replacementAgent) + const dispatchStarted = Promise.withResolvers<'started'>() + const answer = Promise.withResolvers() + const originalSignal = new AbortController().signal + const replacementSignal = new AbortController().signal + let heardBy: 'accepted' | 'replacement' | undefined + let received: ApprovalRequest | undefined + let carrier: unknown + acceptedScope.ctx.on('approval/request', function (req) { + heardBy = 'accepted' + received = req + carrier = carrierKeyOf(this) + dispatchStarted.resolve('started') + return answer.promise + }) + replacementScope.ctx.on('approval/request', function (req) { + heardBy = 'replacement' + received = req + carrier = carrierKeyOf(this) + dispatchStarted.resolve('started') + return answer.promise + }) + const request = requestOf(acceptedAgent, { + toolName: 'original-tool', + callId: CallId('original-call'), + reason: 'original reason', + signal: originalSignal, + }) + + const pending = ctx.approval.request(request) + // request() has returned, but the answerer dispatch is deliberately queued + // in a microtask. Mutating the caller-owned record must not redirect it. + request.agent = replacementAgent + request.toolName = 'mutated-before-dispatch' + request.callId = CallId('mutated-call') + request.reason = 'mutated reason' + request.signal = replacementSignal + await dispatchStarted.promise + // Mutation while the answer is pending must not redirect the final audit. + request.toolName = 'mutated-after-dispatch' + request.reason = 'mutated again' + answer.resolve('allowed-once') + + await expect(pending).resolves.toBe('allowed-once') + expect(heardBy).toBe('accepted') + expect(carrier).toBe(acceptedAgent) + expect(received).not.toBe(request) + expect(Object.isFrozen(received)).toBe(true) + expect(received).toMatchObject({ + agent: acceptedAgent, + toolName: 'original-tool', + callId: 'original-call', + reason: 'original reason', + signal: originalSignal, + }) + expect(acceptedAudit).toHaveLength(2) + expect(acceptedAudit[0]?.data).toMatchObject({ + toolName: 'original-tool', + callId: 'original-call', + reason: 'original reason', + }) + expect(acceptedAudit[1]?.data).toMatchObject({ outcome: 'allowed-once' }) + expect(acceptedAudit[1]?.data['id']).toBe(acceptedAudit[0]?.data['id']) + expect(replacementAudit).toEqual([]) + await host.dispose() + }) + + it('contains an approval/asked observer throw after append and still completes the pair', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + await ctx.plugin(ApprovalService) + const session = ctx.sessions.create(SessionId('asked-observer-throw')) + session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) + const agent = { session } as unknown as Agent + const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => {}) + ctx.on('session/event', (_session, event) => { + if (event.type === 'approval/asked') throw new Error('observer failed after asked append') + }) + ctx.on('approval/request', () => Promise.resolve('allowed-once')) + + await expect(ctx.approval.request(requestOf(agent))).resolves.toBe('allowed-once') + + const audit = session.events.filter(event => event.type.startsWith('approval/')) + const asked = session.events.find((event): event is SessionEvent<'approval/asked'> => event.type === 'approval/asked') + const decided = session.events.find((event): event is SessionEvent<'approval/decided'> => event.type === 'approval/decided') + expect(audit.map(event => event.type)).toEqual(['approval/asked', 'approval/decided']) + expect(decided?.data.id).toBe(asked?.data.id) + expect(warn).toHaveBeenCalledWith(expect.stringContaining('approval/asked observer threw')) + }) + + it('contains an approval/decided observer throw after append and still resolves', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + await ctx.plugin(ApprovalService) + const session = ctx.sessions.create(SessionId('decided-observer-throw')) + session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) + const agent = { session } as unknown as Agent + const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => {}) + ctx.on('session/event', (_session, event) => { + if (event.type === 'approval/decided') throw new Error('observer failed after decided append') + }) + ctx.on('approval/request', () => Promise.resolve('rejected')) + + await expect(ctx.approval.request(requestOf(agent))).resolves.toBe('rejected') + + const audit = session.events.filter(event => event.type.startsWith('approval/')) + const asked = session.events.find((event): event is SessionEvent<'approval/asked'> => event.type === 'approval/asked') + const decided = session.events.find((event): event is SessionEvent<'approval/decided'> => event.type === 'approval/decided') + expect(audit.map(event => event.type)).toEqual(['approval/asked', 'approval/decided']) + expect(decided?.data).toMatchObject({ id: asked?.data.id, outcome: 'rejected' }) + expect(warn).toHaveBeenCalledWith(expect.stringContaining('approval/decided observer threw')) + }) + + it('does not misclassify a pre-append failure as an observer failure', async () => { + const ctx = await mounted() + const failure = new Error('append failed before log growth') + const agent = { + session: { + events: [{ type: 'turn/start' }], + append: () => { throw failure }, + }, + } as unknown as Agent + + await expect(ctx.approval.request(requestOf(agent))).rejects.toBe(failure) + }) + it('returns the first answering listener outcome (single decision slot)', async () => { const ctx = await mounted() const { agent } = fakeAgent() diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index 32d605c651..67f3c771cb 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -83,6 +83,7 @@ class StubProvider implements SubagentProvider { } return { id: AgentId(`stub-child-${index}`), + started: Promise.resolve(), result, cancel: (reason?: string) => { controlled.cancelled = reason ?? 'cancelled' @@ -222,6 +223,7 @@ describe('dsh-workflow-workerthread', () => { inheritsParentContext: false, start: () => ({ id: AgentId('reject-child'), + started: Promise.resolve(), result: Promise.reject(new Error('backend exploded')), cancel: () => { /* nothing in flight */ }, dispose: () => Promise.resolve(), @@ -245,6 +247,7 @@ describe('dsh-workflow-workerthread', () => { inheritsParentContext: false, start: () => ({ id: AgentId('bad-dispose-child'), + started: Promise.resolve(), result: Promise.resolve({ output: [{ type: 'text', text: 'fine' }], stopReason: 'completed' }), cancel: () => { /* settled already */ }, dispose: () => Promise.reject(new Error('dispose exploded')), @@ -266,6 +269,7 @@ describe('dsh-workflow-workerthread', () => { inheritsParentContext: false, start: () => ({ id: AgentId('trap-child'), + started: Promise.resolve(), result: Promise.resolve({ output: [{ type: 'text', text: 'fine' }], stopReason: 'completed' }), cancel: () => { /* settled already */ }, // The rejection VALUE's own coercion throws: a warn built with bare @@ -530,6 +534,7 @@ describe('dsh-workflow-workerthread', () => { }, { once: true }) return { id: AgentId('signal-only-child'), + started: Promise.resolve(), result, // The seam leaves a provider free to honor EITHER cancel channel; // this one deliberately ignores run.cancel() — only the request @@ -572,6 +577,7 @@ describe('dsh-workflow-workerthread', () => { starts += 1 return { id: AgentId('cancel-only-child'), + started: Promise.resolve(), result: new Promise(() => { /* only cancel() ends this child */ }), // Deliberately ignores the request signal — the seam leaves a // provider free to honor ONLY the explicit cancel() channel. @@ -749,6 +755,7 @@ describe('dsh-workflow-workerthread', () => { inheritsParentContext: false, start: () => ({ id: AgentId('doomed-child'), + started: Promise.resolve(), result: new Promise(() => { /* never settles; the reap is the teardown */ }), cancel: (reason?: string) => { cancelled.push(reason ?? 'cancelled') }, dispose: () => Promise.reject(new Error('dispose exploded during reap')), From cb05300ba737a93ea594543340892f2a4a825f85 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 00:38:38 +0800 Subject: [PATCH 199/232] docs: remove duplicate scoped-event explanation --- .../architecture/2026-07-08-agent-scope-contexts.md | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index d0cdefaee8..9fccc392da 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -223,9 +223,7 @@ dispatchScoped(subject, scopeKey, event, arguments): skip listener ``` -The real helpers fuse values that must agree: `agentEvents(context, agent)` supplies the same agent as subject, scope key, and first event argument; session storage captures its carrier once at `enter()`. - -`agentEvents(context, agent)` creates the carrier and injects that same agent as the first event argument. `assembleContextFor(agent)` similarly sets both the agent-facing field and the scope selector. The session store captures its carrier when a session enters because later appends and flushes may occur where the original agent context is no longer available. +The real helpers fuse values that must agree. `agentEvents(context, agent)` uses the same agent as the subject, scope key, and first event argument. `assembleContextFor(agent)` similarly sets both the agent-facing field and the scope selector. The session store captures its carrier when a session enters because later appends and flushes may occur where the original agent context is no longer available. ### The carrier behaves like the subject but has distinct identity From c632b693c676dea22c9b8fc07dcc5b1528889c68 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 00:50:50 +0800 Subject: [PATCH 200/232] test(e2e): tolerate bounded loader contention --- .../tests/code-mode-keyless-smoke.e2e.ts | 11 ++++++++--- .../coding-agent/tests/keyless-smoke.e2e.ts | 11 ++++++++--- .../cordis-agent/tests/keyless-smoke.e2e.ts | 11 ++++++++--- examples/echo-agent/tests/echo.e2e.ts | 17 +++++++++++------ 4 files changed, 35 insertions(+), 15 deletions(-) diff --git a/examples/coding-agent/tests/code-mode-keyless-smoke.e2e.ts b/examples/coding-agent/tests/code-mode-keyless-smoke.e2e.ts index 7894e9ff9f..b25e26ea05 100644 --- a/examples/coding-agent/tests/code-mode-keyless-smoke.e2e.ts +++ b/examples/coding-agent/tests/code-mode-keyless-smoke.e2e.ts @@ -26,6 +26,11 @@ const tsxLoader = fileURLToPath(import.meta.resolve('tsx')) // `paths` map; tsx searches UP from cwd, and we spawn from a temp dir outside // the repo, so point it at the repo tsconfig. const repoTsconfig = fileURLToPath(new URL('../../../tsconfig.json', import.meta.url)) +// The real-API workflow runs up to 14 e2e files at once. Cold tsx/Loader +// startup can therefore outlive a tight smoke-test deadline before the child +// emits any output; 30s still detects a wedged process without confusing +// bounded CI contention with a lifecycle failure. +const PROCESS_TIMEOUT_MS = 30_000 let child: ChildProcessWithoutNullStreams | undefined let workdir: string | undefined @@ -67,8 +72,8 @@ async function bootAndEof(): Promise<{ stdout: string; code: number }> { const timer = setTimeout(() => { proc.kill('SIGKILL') - reject(new Error(`code-mode overlay did not exit within 10s. stdout:\n${stdout}\nstderr:\n${stderr}`)) - }, 10_000) + reject(new Error(`code-mode overlay did not exit within ${PROCESS_TIMEOUT_MS / 1_000}s. stdout:\n${stdout}\nstderr:\n${stderr}`)) + }, PROCESS_TIMEOUT_MS) proc.on('exit', (code) => { clearTimeout(timer) @@ -87,5 +92,5 @@ describe('code-mode overlay keyless smoke (real code-mode.cordis.yml via the Loa const { stdout, code } = await bootAndEof() expect(code).toBe(0) expect(stdout).toContain('code-mode agent ready.') - }, 15_000) + }, PROCESS_TIMEOUT_MS + 5_000) }) diff --git a/examples/coding-agent/tests/keyless-smoke.e2e.ts b/examples/coding-agent/tests/keyless-smoke.e2e.ts index b4d73f4d90..b104d8af63 100644 --- a/examples/coding-agent/tests/keyless-smoke.e2e.ts +++ b/examples/coding-agent/tests/keyless-smoke.e2e.ts @@ -35,6 +35,11 @@ const tsxLoader = fileURLToPath(import.meta.resolve('tsx')) // `paths` map; tsx searches UP from cwd, and we spawn from a temp dir outside // the repo, so point it at the repo tsconfig (root is four levels up). const repoTsconfig = fileURLToPath(new URL('../../../tsconfig.json', import.meta.url)) +// The real-API workflow runs up to 14 e2e files at once. Cold tsx/Loader +// startup can therefore outlive a tight smoke-test deadline before the child +// emits any output; 30s still detects a wedged process without confusing +// bounded CI contention with a lifecycle failure. +const PROCESS_TIMEOUT_MS = 30_000 let child: ChildProcessWithoutNullStreams | undefined let workdir: string | undefined @@ -78,8 +83,8 @@ async function bootAndEof(): Promise<{ stdout: string; code: number }> { const timer = setTimeout(() => { proc.kill('SIGKILL') - reject(new Error(`coding-agent did not exit within 10s. stdout:\n${stdout}\nstderr:\n${stderr}`)) - }, 10_000) + reject(new Error(`coding-agent did not exit within ${PROCESS_TIMEOUT_MS / 1_000}s. stdout:\n${stdout}\nstderr:\n${stderr}`)) + }, PROCESS_TIMEOUT_MS) proc.on('exit', (code) => { clearTimeout(timer) @@ -98,5 +103,5 @@ describe('coding-agent keyless smoke (real cordis.yml via the Loader)', () => { const { stdout, code } = await bootAndEof() expect(code).toBe(0) expect(stdout).toContain('agent REPL ready.') - }, 15_000) + }, PROCESS_TIMEOUT_MS + 5_000) }) diff --git a/examples/cordis-agent/tests/keyless-smoke.e2e.ts b/examples/cordis-agent/tests/keyless-smoke.e2e.ts index b37ea8d83e..d170d0b9bf 100644 --- a/examples/cordis-agent/tests/keyless-smoke.e2e.ts +++ b/examples/cordis-agent/tests/keyless-smoke.e2e.ts @@ -29,6 +29,11 @@ const tsxLoader = fileURLToPath(import.meta.resolve('tsx')) // `paths` map; tsx searches UP from cwd, and we spawn from a temp dir outside // the repo, so point it at the repo tsconfig (root is three levels up). const repoTsconfig = fileURLToPath(new URL('../../../tsconfig.json', import.meta.url)) +// The real-API workflow runs up to 14 e2e files at once. Cold tsx/Loader +// startup can therefore outlive a tight smoke-test deadline before the child +// emits any output; 30s still detects a wedged process without confusing +// bounded CI contention with a lifecycle failure. +const PROCESS_TIMEOUT_MS = 30_000 let child: ChildProcessWithoutNullStreams | undefined let workdir: string | undefined @@ -70,8 +75,8 @@ async function bootAndEof(): Promise<{ stdout: string; code: number }> { const timer = setTimeout(() => { proc.kill('SIGKILL') - reject(new Error(`cordis-agent did not exit within 10s. stdout:\n${stdout}\nstderr:\n${stderr}`)) - }, 10_000) + reject(new Error(`cordis-agent did not exit within ${PROCESS_TIMEOUT_MS / 1_000}s. stdout:\n${stdout}\nstderr:\n${stderr}`)) + }, PROCESS_TIMEOUT_MS) proc.on('exit', (code) => { clearTimeout(timer) @@ -90,5 +95,5 @@ describe('cordis-agent keyless smoke (real cordis.yml via the Loader)', () => { const { stdout, code } = await bootAndEof() expect(code).toBe(0) expect(stdout).toContain('cordis-agent ready.') - }, 15_000) + }, PROCESS_TIMEOUT_MS + 5_000) }) diff --git a/examples/echo-agent/tests/echo.e2e.ts b/examples/echo-agent/tests/echo.e2e.ts index b446b2b191..546b69c0f3 100644 --- a/examples/echo-agent/tests/echo.e2e.ts +++ b/examples/echo-agent/tests/echo.e2e.ts @@ -37,6 +37,11 @@ const tsxLoader = fileURLToPath(import.meta.resolve('tsx')) // a temp cwd OUTSIDE the repo, so point tsx at the repo tsconfig explicitly // (repo root is four levels up from examples/echo-agent/tests). const repoTsconfig = fileURLToPath(new URL('../../../tsconfig.json', import.meta.url)) +// The real-API workflow runs up to 14 e2e files at once. Cold tsx/Loader +// startup can therefore outlive a tight smoke-test deadline before the child +// emits any output; 30s still detects a wedged process without confusing +// bounded CI contention with a lifecycle failure. +const PROCESS_TIMEOUT_MS = 30_000 let child: ChildProcessWithoutNullStreams | undefined let workdir: string | undefined @@ -51,7 +56,7 @@ afterEach(async () => { /** * Boot echo-agent, write `lines` to its stdin, close stdin, and resolve with * the full stdout once the process exits (the stdio UI exits on EOF after the - * agent settles). Rejects on a non-zero exit or a 10s timeout. + * agent settles). Rejects on a non-zero exit or the process deadline. */ async function runEcho(lines: string[]): Promise<{ stdout: string; code: number }> { workdir = await mkdtemp(join(tmpdir(), 'echo-smoke-')) @@ -84,8 +89,8 @@ async function runEcho(lines: string[]): Promise<{ stdout: string; code: number const timer = setTimeout(() => { proc.kill('SIGKILL') - reject(new Error(`echo-agent did not exit within 10s. stdout:\n${stdout}\nstderr:\n${stderr}`)) - }, 10_000) + reject(new Error(`echo-agent did not exit within ${PROCESS_TIMEOUT_MS / 1_000}s. stdout:\n${stdout}\nstderr:\n${stderr}`)) + }, PROCESS_TIMEOUT_MS) proc.on('exit', (code) => { clearTimeout(timer) @@ -105,19 +110,19 @@ describe('echo-agent keyless smoke (real cordis.yml via the Loader)', () => { const { stdout, code } = await runEcho([]) expect(code).toBe(0) expect(stdout).toContain('echo-agent ready.') - }, 15_000) + }, PROCESS_TIMEOUT_MS + 5_000) it('runs the echo tool round-trip for an "echo …" line', async () => { const { stdout } = await runEcho(['echo hello world']) // mock-llm.ts emits a tool-call for the echo tool; echo-tool.ts uppercases. expect(stdout).toContain('[tool call] echo') expect(stdout).toContain('[tool result] ECHO: HELLO WORLD') - }, 15_000) + }, PROCESS_TIMEOUT_MS + 5_000) it('streams a direct canned reply for a non-echo line', async () => { const { stdout } = await runEcho(['just chatting']) // The direct-response branch of mock-llm.ts quotes the input back. expect(stdout).toContain('just chatting') expect(stdout).not.toContain('[tool call]') - }, 15_000) + }, PROCESS_TIMEOUT_MS + 5_000) }) From 35715423f8f3321ebe457e1bb53f9074ea6ebf2b Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 01:35:09 +0800 Subject: [PATCH 201/232] fix(workflow): honor subagent readiness boundary --- docs/cordis-catalog/events.md | 8 +- docs/cordis-catalog/services.md | 2 +- docs/event-producer-consumer.md | 6 +- .../2026-07-08-agent-scope-contexts.md | 10 ++ .../cordis/tool-cordis/src/api-catalog.ts | 2 +- .../workflow/workflow-workerthread/README.md | 6 +- .../workflow-workerthread/src/host.ts | 69 ++++++-- .../workflow-workerthread/src/protocol.ts | 4 +- .../workflow-workerthread/src/runtime.ts | 5 +- .../workflow-workerthread/src/session.ts | 16 +- .../workflow-workerthread/src/types.ts | 3 +- .../tests/integration.spec.ts | 7 +- .../tests/workflow-workerthread.spec.ts | 161 ++++++++++++++++-- packages/workflow/workflow/README.md | 2 +- packages/workflow/workflow/src/index.ts | 16 +- 15 files changed, 260 insertions(+), 57 deletions(-) diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index f7bbecb20f..0c5399b41b 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -431,17 +431,17 @@ One `agent()` call settled (clean result, child failure, or run cancellation). P 'workflow/agent-end'(info: WorkflowRunInfo, agent: WorkflowAgentEndInfo): void ``` -Source: [`packages/workflow/workflow/src/index.ts:96`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:98`](../../packages/workflow/workflow/src/index.ts) ### `workflow/agent-start` — emit -One `agent()` call started a child run. Paired with Events['workflow/agent-end'] by `agent.seq`. +One `agent()` call established a ready child run. Paired with Events['workflow/agent-end'] by `agent.seq`. A call that never crosses the provider's publication/readiness boundary emits neither event in this pair. ```ts cordis-catalog 'workflow/agent-start'(info: WorkflowRunInfo, agent: WorkflowAgentInfo): void ``` -Source: [`packages/workflow/workflow/src/index.ts:85`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:87`](../../packages/workflow/workflow/src/index.ts) ### `workflow/end` — emit @@ -451,7 +451,7 @@ A workflow run settled (any stop reason). Fired when WorkflowRun.result resolves 'workflow/end'(info: WorkflowRunInfo, result: WorkflowResultInfo): void ``` -Source: [`packages/workflow/workflow/src/index.ts:106`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:108`](../../packages/workflow/workflow/src/index.ts) ### `workflow/log` — emit diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index f3cf92f425..ddf2a860e4 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -331,7 +331,7 @@ Semantics every implementation must honor: abstract start(request: WorkflowStartRequest): WorkflowRun ``` -Source: [`packages/workflow/workflow/src/index.ts:210`](../../packages/workflow/workflow/src/index.ts) +Source: [`packages/workflow/workflow/src/index.ts:214`](../../packages/workflow/workflow/src/index.ts) ## Inherited `ctx` members (cordis core + loader/hmr/timer) diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 879c0ac2e4..1ed2405671 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -41,9 +41,9 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:151`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | | `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:104`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | | `tools/result` | `parallel` | [`packages/core/tools/src/index.ts:166`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`events.dispatch`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | -| `workflow/agent-end` | `emit` | [`packages/workflow/workflow/src/index.ts:96`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | -| `workflow/agent-start` | `emit` | [`packages/workflow/workflow/src/index.ts:85`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | -| `workflow/end` | `emit` | [`packages/workflow/workflow/src/index.ts:106`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | +| `workflow/agent-end` | `emit` | [`packages/workflow/workflow/src/index.ts:98`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | +| `workflow/agent-start` | `emit` | [`packages/workflow/workflow/src/index.ts:87`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | +| `workflow/end` | `emit` | [`packages/workflow/workflow/src/index.ts:108`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/log` | `emit` | [`packages/workflow/workflow/src/index.ts:77`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/phase` | `emit` | [`packages/workflow/workflow/src/index.ts:70`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/start` | `emit` | [`packages/workflow/workflow/src/index.ts:62`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index 9fccc392da..9091965a59 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -553,8 +553,18 @@ SubagentService.start(...): attach result settlement handlers immediately await returnedRun.started emit subagent/start; later emit the buffered or eventual subagent/end + +Workflow worker bridge after receiving returnedRun: + register the run so cancellation can reach pre-publication work + attach result settlement handlers immediately and snapshot the outcome + if returnedRun.started fulfills: + send ChildStarted; then send the buffered or eventual outcome + else: + send ChildStartError and dispose the attempt ``` +Every downstream protocol that announces a subagent must honor the same boundary. The workflow worker bridge therefore registers the returned run before waiting, observes and snapshots `result` immediately, sends `ChildStarted` only after `started` fulfills, and sends `ChildStartError` plus host-driven disposal when readiness rejects. This keeps cancellation able to reach pending creation, prevents an early result rejection from going unhandled, and ensures `workflow/agent-start` never names an unpublished child. + Parent teardown reaches `runOwner` by nesting; the provider and returned run handle reach the same node through their explicit disposers. ### Persona, filtering, and lifetime use ordinary registrations diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts index e56f675bb2..7f7882f2b7 100644 --- a/packages/cordis/tool-cordis/src/api-catalog.ts +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -453,7 +453,7 @@ export const EVENT_API: readonly EventApiEntry[] = [ name: 'workflow/agent-start', mode: 'emit', signature: '\'workflow/agent-start\'(info: WorkflowRunInfo, agent: WorkflowAgentInfo): void', - summary: 'One `agent()` call started a child run.', + summary: 'One `agent()` call established a ready child run.', }, { name: 'workflow/end', diff --git a/packages/workflow/workflow-workerthread/README.md b/packages/workflow/workflow-workerthread/README.md index 1ee959cc0c..86d386350a 100644 --- a/packages/workflow/workflow-workerthread/README.md +++ b/packages/workflow/workflow-workerthread/README.md @@ -23,7 +23,11 @@ What the seam guarantees regardless, because benign scripts hit these constantly `start()` shape-validates the meta DATA host-side and parse-checks the body with the identical wrapper the worker compiles (`new vm.Script`, discarded), preserving the seam's synchronous `META_INVALID`/`SCRIPT_PARSE` throws; one redundant parse per run is the deliberate price. It then spawns the worker (`src/worker.ts` unbuilt via an explicit tsx `execArgv`; the sibling `lib/worker.js` bundle when built) with the meta, body, `args`, and worker-side limits as `workerData`. -Inside the worker, `runWorkerSession` builds the execution core (hooks, combinators, concurrency semaphore, caps, fatal-error discipline) over a **child port**: `agent()` sends `child-start` and the host starts the child on `ctx.subagents` (parent attribution, the shared per-run abort signal, `outputSchema`/`model` pass-through), replying with the child id, its settlement (a JSON projection; an infrastructure REJECTION crosses as `child-failed` and stays the fatal `AGENT_RESULT`), and dispose acks. Observer narration (`phase`/`log`/`agent-start`/`agent-end`) crosses as messages and re-emits as the seam's `workflow/*` events. A **ready→go handshake** gates the body: a cancellation racing worker boot arrives before `go`, so a run cancelled before start never executes the body at all. +Inside the worker, `runWorkerSession` builds the execution core (hooks, combinators, concurrency semaphore, caps, fatal-error discipline) over a **child port**. `agent()` sends `child-start`, and the host starts the child on `ctx.subagents` with parent attribution, the shared per-run abort signal, and `outputSchema`/`model` pass-through. + +The host observes `run.result` immediately but buffers its snapshotted wire projection until `run.started` fulfills. It then replies `child-started` with the child id before forwarding settlement, so `workflow/agent-start` always names a ready child and precedes its end. A readiness rejection replies `child-start-error`, emits no workflow agent pair, and makes the host dispose the attempt because the worker never received a handle; the worker classifies it as fatal `AGENT_START` unless cancellation already owns the run. If readiness fulfills, an infrastructure result rejection crosses as `child-failed`/`AGENT_RESULT` regardless of whether that rejection settled before or after readiness. Child disposal acknowledgements complete the RPC. + +Observer narration (`phase`/`log`/`agent-start`/`agent-end`) crosses as messages and re-emits as the seam's `workflow/*` events. A **ready→go handshake** gates the body: a cancellation racing worker boot arrives before `go`, so a run cancelled before start never executes the body at all. ## The value boundary diff --git a/packages/workflow/workflow-workerthread/src/host.ts b/packages/workflow/workflow-workerthread/src/host.ts index 6b6391a02e..fff9d8496f 100644 --- a/packages/workflow/workflow-workerthread/src/host.ts +++ b/packages/workflow/workflow-workerthread/src/host.ts @@ -14,12 +14,16 @@ * (a script that never settles is force-settled `cancelled` and its worker * terminated — the real kill an in-process engine could not perform). * - * Children live in a host-side registry (callId → run): the worker drives - * their disposal by RPC on the graceful path, `dispose()` host-drives every - * registered child's disposal immediately (a wedged worker can relay no - * dispose RPC, and child teardown must overlap the grace, not start after - * it), and the registry is what lets the host abort and dispose every - * survivor when the worker dies or is terminated mid-flight. The three + * Children live in a host-side registry (callId → run) as soon as the provider + * accepts them, so cancellation reaches even a pre-publication attempt. The + * host observes `result` immediately but acknowledges the child to the worker + * only after `started` fulfills; readiness failure is a start error and the + * host disposes the attempt because the worker never received a handle. The + * worker drives disposal by RPC on the graceful path, `dispose()` host-drives + * every registered child's disposal immediately (a wedged worker can relay no + * dispose RPC, and child teardown must overlap the grace, not start after it), + * and the registry lets the host abort and dispose every survivor when the + * worker dies or is terminated mid-flight. The three * paths share ONE disposal per child (memoized by callId; the seam's * dispose() is idempotent anyway, the memo keeps the bookkeeping and the * containment warn single). Lifecycle pairing is host-guaranteed the same @@ -46,7 +50,7 @@ import { renderThrown } from './realm.ts' import type { ExecutionObserver } from './runtime.ts' import { HostToWorkerType, WorkerToHostType } from './protocol.ts' import type { HostToWorkerPayloads, WorkerToHostMessage } from './protocol.ts' -import type { ChildStartRequest, WorkerInit } from './types.ts' +import type { ChildResult, ChildStartRequest, WorkerInit } from './types.ts' /** * Resolve the worker entry and spawn options for the current runtime shape. @@ -307,19 +311,49 @@ export class WorkerRun implements WorkflowRun { return } this.children.set(callId, run) - this.post(HostToWorkerType.ChildStarted, { callId, childId: run.id }) - run.result.then( + const childId = run.id + + // Observe settlement IMMEDIATELY, before readiness. A provider may reject + // result and started in the same turn; delaying this handler would make the + // result transiently unhandled. Buffer a forwarding closure so the worker + // still sees ChildStarted before ChildSettled/ChildFailed. Snapshot a + // resolved result now: a provider mutating its resolved object while + // publication is pending must not change what crosses the worker boundary. + const forwardResult = run.result.then<() => void, () => void>( (result) => { - this.post(HostToWorkerType.ChildSettled, { - callId, - result: { + try { + const snapshot: ChildResult = structuredClone({ output: result.output, ...result.structured !== undefined ? { structured: result.structured } : {}, stopReason: result.stopReason, - }, - }) + }) + return () => { this.post(HostToWorkerType.ChildSettled, { callId, result: snapshot }) } + } catch (error: unknown) { + const rendered = `workflow child result could not cross the worker boundary: ${renderThrown(error)}` + return () => { this.post(HostToWorkerType.ChildFailed, { callId, rendered }) } + } + }, + (error: unknown) => { + const rendered = renderThrown(error) + return () => { this.post(HostToWorkerType.ChildFailed, { callId, rendered }) } + }, + ) + + // The provider owns the publication boundary. Only acknowledge the child + // after it is real, then flush any result that settled unusually early. A + // readiness rejection is a START failure, not AGENT_RESULT: the worker + // never receives a handle, so the host must also dispose the registered + // attempt. A concurrent host disposal may already have removed it; the + // identity guard preserves the one-disposal memo in that race. + void run.started.then( + () => { + this.post(HostToWorkerType.ChildStarted, { callId, childId }) + void forwardResult.then((forward) => { forward() }) + }, + (error: unknown) => { + this.post(HostToWorkerType.ChildStartError, { callId, rendered: renderThrown(error) }) + if (this.children.get(callId) === run) void this.disposeChild(callId, run) }, - (error: unknown) => { this.post(HostToWorkerType.ChildFailed, { callId, rendered: renderThrown(error) }) }, ) } @@ -350,7 +384,10 @@ export class WorkerRun implements WorkflowRun { private disposeChild(callId: number, run: SubagentRun): Promise { let disposal = this.childDisposals.get(callId) if (disposal === undefined) { - disposal = run.dispose().then( + // The seam promises a Promise, but invoke inside an async boundary so a + // contract-violating synchronous throw is contained exactly like a + // rejected disposal and cannot break host quiescence. + disposal = (async () => { await run.dispose() })().then( () => { this.finishChild(callId) }, (error: unknown) => { this.ctx.logger.warn(`workflow-workerthread: child dispose failed: ${renderThrown(error)}`) diff --git a/packages/workflow/workflow-workerthread/src/protocol.ts b/packages/workflow/workflow-workerthread/src/protocol.ts index f6e85ee509..d70ad11613 100644 --- a/packages/workflow/workflow-workerthread/src/protocol.ts +++ b/packages/workflow/workflow-workerthread/src/protocol.ts @@ -69,9 +69,9 @@ export enum HostToWorkerType { Go = 'go', /** Cancel the run: hooks start throwing and the script dies at its next await. */ Cancel = 'cancel', - /** Child RPC reply: the start succeeded (exactly one of ChildStarted/ChildStartError per ChildStart). */ + /** Child RPC reply: provider publication/readiness fulfilled (exactly one start reply per ChildStart). */ ChildStarted = 'child-started', - /** Child RPC reply: the start was refused or threw. */ + /** Child RPC reply: synchronous start or asynchronous publication/readiness failed. */ ChildStartError = 'child-start-error', /** Child RPC: a started child's result RESOLVED (its JSON projection). */ ChildSettled = 'child-settled', diff --git a/packages/workflow/workflow-workerthread/src/runtime.ts b/packages/workflow/workflow-workerthread/src/runtime.ts index 645a61b6c4..2add6d537c 100644 --- a/packages/workflow/workflow-workerthread/src/runtime.ts +++ b/packages/workflow/workflow-workerthread/src/runtime.ts @@ -19,8 +19,9 @@ * (a benign-bug guard; the postMessage clone already isolated the caller). * * Failure discipline: fatal {@link WorkflowError}s (bad hook arguments, - * unsupported options/schemas, tripped caps, host start refusals and child - * result rejections, cancellation) ALWAYS propagate through + * unsupported options/schemas, tripped caps, synchronous start refusal, + * pre-publication readiness failure, ready-child result rejection, and + * cancellation) ALWAYS propagate through * `parallel`/`pipeline` — recognized by `instanceof` against this realm's * class, which a script inside the vm context cannot forge — and the per-item * `null` is reserved for child-run failures and ordinary in-stage script diff --git a/packages/workflow/workflow-workerthread/src/session.ts b/packages/workflow/workflow-workerthread/src/session.ts index 718b8ac54d..b159892021 100644 --- a/packages/workflow/workflow-workerthread/src/session.ts +++ b/packages/workflow/workflow-workerthread/src/session.ts @@ -89,24 +89,26 @@ class ChildRpcBridge implements ChildPort { settled: Promise.withResolvers(), disposed: Promise.withResolvers(), } - // Containment: when the start is refused (or the run torn down) the - // settled promise may never gain a consumer — it must not surface as an - // unhandled rejection and kill the worker. - entry.settled.promise.catch(() => { /* consumed: unconsumed child settlement after a refused start */ }) + // Containment: when synchronous start or asynchronous readiness fails (or + // the run is torn down), the settled promise may never gain a consumer — + // it must not surface as an unhandled rejection and kill the worker. + entry.settled.promise.catch(() => { /* consumed: unconsumed child settlement after failed start/readiness */ }) this.pending.set(callId, entry) this.post(WorkerToHostType.ChildStart, { callId, request }) const childId = await entry.started.promise return new RpcChildHandle(this.post, callId, entry, childId) } - /** The host started the child; releases the `startAgent` await. */ + /** The host established a ready child; releases the `startAgent` await. */ onChildStarted(callId: number, childId: string): void { this.pending.get(callId)?.started.resolve(childId) } - /** The host refused the start; `startAgent` rejects with the rendered cause. */ + /** Synchronous start or asynchronous readiness failed; reject and retire the pending RPC. */ onChildStartError(callId: number, rendered: string): void { - this.pending.get(callId)?.started.reject(new Error(rendered)) + const entry = this.pending.get(callId) + this.pending.delete(callId) + entry?.started.reject(new Error(rendered)) } /** The child's terminal result arrived. */ diff --git a/packages/workflow/workflow-workerthread/src/types.ts b/packages/workflow/workflow-workerthread/src/types.ts index a80b126a2d..ee5faccdda 100644 --- a/packages/workflow/workflow-workerthread/src/types.ts +++ b/packages/workflow/workflow-workerthread/src/types.ts @@ -91,7 +91,8 @@ export interface ChildPort { /** * Start one child agent on the host (the `agent()` hook's start half). * @param request - the prompt and validated options. - * @returns the child handle; rejects when the host refuses the start. + * @returns the ready child handle; rejects when synchronous start or the + * provider's asynchronous publication/readiness boundary fails. */ startAgent(request: ChildStartRequest): Promise } diff --git a/packages/workflow/workflow-workerthread/tests/integration.spec.ts b/packages/workflow/workflow-workerthread/tests/integration.spec.ts index d6e8237804..51ace9253b 100644 --- a/packages/workflow/workflow-workerthread/tests/integration.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/integration.spec.ts @@ -48,7 +48,12 @@ describe('dsh-workflow-workerthread over the real in-process stack', () => { toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { verdict: 'real', confidence: 0.9 }), ]) const childIds: string[] = [] - ctx.on('workflow/agent-start', (_info, agent) => { childIds.push(agent.childId) }) + ctx.on('workflow/agent-start', (_info, agent) => { + // The workflow bridge must honor SubagentRun.started: a start observer + // sees the real spawn child already published, never a reserved id. + expect(ctx.agents.get(agent.childId)).toBeDefined() + childIds.push(agent.childId) + }) const run = ctx.workflows.start({ meta: { name: 'integration', description: 'plain + structured children' }, script: `phase('Read') diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index 67f3c771cb..23d4de0f07 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -8,7 +8,7 @@ import SubagentService from '@deepseek-ai/dsh-subagent' import type { SubagentCapabilities, SubagentProvider, SubagentResult, SubagentRun, SubagentStartRequest } from '@deepseek-ai/dsh-subagent' import type { WorkflowMeta, WorkflowResult, WorkflowResultInfo, WorkflowRunInfo } from '@deepseek-ai/dsh-workflow' import * as workerEngineModule from '../src/index.ts' -import WorkerWorkflowEngine, { type Config } from '../src/index.ts' +import WorkerWorkflowEngine, { HostToWorkerType, type Config } from '../src/index.ts' /** A minimal parent stand-in: the engine only threads it through to the provider. */ function fakeParent(): Agent { @@ -47,7 +47,12 @@ const ESCAPE = "globalThis.constructor.constructor('return process')()" /** One controllable child run: the test (or auto mode) settles it. */ interface ControlledRun { request: SubagentStartRequest + /** Fulfill the provider publication/readiness boundary. */ + publish(): void + /** Reject the provider publication/readiness boundary. */ + rejectStart(error: unknown): void settle(result: SubagentResult): void + rejectResult(error: unknown): void cancelled: string | undefined disposed: boolean disposeCalls: number @@ -68,26 +73,37 @@ class StubProvider implements SubagentProvider { readonly name: string, private readonly reply?: (request: SubagentStartRequest, index: number) => SubagentResult, private readonly disposeDelayMs = 0, + private readonly deferStart = false, ) {} start(request: SubagentStartRequest): SubagentRun { - let settle!: (result: SubagentResult) => void - const result = new Promise((resolve) => { settle = resolve }) - const controlled: ControlledRun = { request, settle, cancelled: undefined, disposed: false, disposeCalls: 0 } + const readiness = Promise.withResolvers() + const terminal = Promise.withResolvers() + const controlled: ControlledRun = { + request, + publish: () => { readiness.resolve(undefined) }, + rejectStart: (error) => { readiness.reject(error) }, + settle: (result) => { terminal.resolve(result) }, + rejectResult: (error) => { terminal.reject(error) }, + cancelled: undefined, + disposed: false, + disposeCalls: 0, + } this.runs.push(controlled) const index = this.runs.length - 1 - request.signal?.addEventListener('abort', () => { settle({ output: [], stopReason: 'aborted' }) }, { once: true }) + request.signal?.addEventListener('abort', () => { terminal.resolve({ output: [], stopReason: 'aborted' }) }, { once: true }) + if (!this.deferStart) readiness.resolve(undefined) if (this.reply) { const reply = this.reply - queueMicrotask(() => { settle(reply(request, index)) }) + queueMicrotask(() => { terminal.resolve(reply(request, index)) }) } return { id: AgentId(`stub-child-${index}`), - started: Promise.resolve(), - result, + started: readiness.promise, + result: terminal.promise, cancel: (reason?: string) => { controlled.cancelled = reason ?? 'cancelled' - settle({ output: [], stopReason: 'aborted' }) + terminal.resolve({ output: [], stopReason: 'aborted' }) }, dispose: () => { controlled.disposeCalls += 1 @@ -116,6 +132,7 @@ interface SetupOptions { reply?: (request: SubagentStartRequest, index: number) => SubagentResult manual?: boolean disposeDelayMs?: number + deferStart?: boolean } async function setup(options?: SetupOptions) { @@ -125,6 +142,7 @@ async function setup(options?: SetupOptions) { 'stub', options?.manual ? undefined : options?.reply ?? (() => text('stub reply')), options?.disposeDelayMs ?? 0, + options?.deferStart ?? false, ) ctx.subagents.registerProvider(provider) // A fixed concurrency ceiling: the auto-resolved default is machine-derived @@ -214,6 +232,116 @@ describe('dsh-workflow-workerthread', () => { expect(result.error).toContain('agent() could not start a child') }) + it('waits for child readiness before announcing it and snapshots a result that settled early', async () => { + const { ctx, parent, provider } = await setup({ manual: true, deferStart: true }) + const order: string[] = [] + ctx.on('workflow/agent-start', (_info, agent) => { order.push(`start:${agent.seq}`) }) + ctx.on('workflow/agent-end', (_info, agent) => { order.push(`end:${agent.outcome}`) }) + ctx.on('workflow/end', () => { order.push('run-end') }) + + const handle = ctx.workflows.start({ ...scripted("return await agent('p')"), parent }) + await waitFor(() => { expect(provider.runs.length).toBe(1) }) + const early = text('accepted value') + provider.runs[0]!.settle(early) + // Let the host observe + snapshot result while readiness remains pending. + await new Promise(resolve => setTimeout(resolve, 0)) + const earlyText = early.output[0] as { type: 'text'; text: string } + earlyText.text = 'mutated after settlement' + expect(order).toEqual([]) + + provider.runs[0]!.publish() + const result = await handle.result + expect(result.value).toBe('accepted value') + expect(order).toEqual(['start:1', 'end:completed', 'run-end']) + await handle.dispose() + expect(provider.runs[0]!.disposeCalls).toBe(1) + }) + + it('observes an early result rejection but sends ChildStarted before ChildFailed after readiness', async () => { + const { ctx, parent, provider } = await setup({ manual: true, deferStart: true }) + const lifecycle: string[] = [] + ctx.on('workflow/agent-start', () => { lifecycle.push('start') }) + ctx.on('workflow/agent-end', (_info, agent) => { lifecycle.push(`end:${agent.outcome}`) }) + const handle = ctx.workflows.start({ + ...scripted("try { await agent('p'); return 'unreachable' } catch (e) { return { code: e.code, message: e.message } }"), + parent, + }) + const worker = (handle as unknown as { worker: { postMessage(message: unknown): void } }).worker + const post = vi.spyOn(worker, 'postMessage') + const childMessageTypes = (): HostToWorkerType[] => post.mock.calls + .map(([message]) => (message as { type: HostToWorkerType }).type) + .filter(type => type === HostToWorkerType.ChildStarted || type === HostToWorkerType.ChildFailed) + + await waitFor(() => { expect(provider.runs.length).toBe(1) }) + provider.runs[0]!.rejectResult(new Error('backend failed before publication')) + await new Promise(resolve => setTimeout(resolve, 0)) + expect(childMessageTypes()).toEqual([]) + expect(lifecycle).toEqual([]) + + provider.runs[0]!.publish() + const result = await handle.result + expect(result.value).toMatchObject({ code: 'AGENT_RESULT' }) + expect((result.value as { message: string }).message).toContain('backend failed before publication') + expect(childMessageTypes()).toEqual([HostToWorkerType.ChildStarted, HostToWorkerType.ChildFailed]) + expect(lifecycle).toEqual(['start', 'end:failed']) + post.mockRestore() + await handle.dispose() + }) + + it('classifies readiness rejection as AGENT_START, drops an early result, and emits no false lifecycle pair', async () => { + const { ctx, parent, provider } = await setup({ manual: true, deferStart: true }) + const lifecycle: string[] = [] + ctx.on('workflow/agent-start', () => { lifecycle.push('start') }) + ctx.on('workflow/agent-end', () => { lifecycle.push('end') }) + + const handle = ctx.workflows.start({ + ...scripted("try { await agent('p'); return 'unreachable' } catch (e) { return { code: e.code, message: e.message } }"), + parent, + }) + await waitFor(() => { expect(provider.runs.length).toBe(1) }) + // ACP-style failure can settle result(error) before its session/publication + // boundary rejects. Readiness must dominate that buffered child outcome. + provider.runs[0]!.settle({ output: [], stopReason: 'error' }) + await new Promise(resolve => setTimeout(resolve, 0)) + provider.runs[0]!.rejectStart(new Error('publication rolled back')) + + const result = await handle.result + expect(result.value).toMatchObject({ code: 'AGENT_START' }) + expect((result.value as { message: string }).message).toContain('publication rolled back') + expect(lifecycle).toEqual([]) + await waitFor(() => { + expect(provider.runs[0]!.disposed).toBe(true) + expect(provider.runs[0]!.disposeCalls).toBe(1) + }) + await handle.dispose() + expect(provider.runs[0]!.disposeCalls).toBe(1) + }) + + it('cancels and disposes a readiness-pending child once without publishing workflow lifecycle', async () => { + const { ctx, parent, provider } = await setup({ manual: true, deferStart: true, config: { disposeGraceMs: 500 } }) + const lifecycle: string[] = [] + ctx.on('workflow/agent-start', () => { lifecycle.push('start') }) + ctx.on('workflow/agent-end', () => { lifecycle.push('end') }) + + const handle = ctx.workflows.start({ ...scripted("return await agent('pending')"), parent }) + await waitFor(() => { expect(provider.runs.length).toBe(1) }) + const disposal = handle.dispose() + await waitFor(() => { + expect(provider.runs[0]!.cancelled).toBe('workflow disposed') + expect(provider.runs[0]!.disposed).toBe(true) + }) + // Ensure the host-driven disposal removed the registry entry before the + // late readiness rejection; its callback must not invoke dispose again. + await new Promise(resolve => setTimeout(resolve, 0)) + provider.runs[0]!.rejectStart(new Error('cancelled before publication')) + + const result = await handle.result + await disposal + expect(result.stopReason).toBe('cancelled') + expect(lifecycle).toEqual([]) + expect(provider.runs[0]!.disposeCalls).toBe(1) + }) + it('a child result REJECTION crosses back as a fatal AGENT_RESULT error (a broken provider is not a failed child)', async () => { const ctx = new Context() await ctx.plugin(SubagentService) @@ -238,7 +366,18 @@ describe('dsh-workflow-workerthread', () => { expect((result.value as { message: string }).message).toContain('backend exploded') }) - it('a child whose dispose() rejects cannot wedge the script (the host acks anyway)', async () => { + it('maps an uncloneable ready-child result to fatal AGENT_RESULT instead of wedging the bridge', async () => { + const { ctx, parent } = await setup({ + reply: () => ({ output: [], structured: () => { /* deliberately not cloneable */ }, stopReason: 'completed' }), + }) + const result = await run(ctx, parent, scripted(` + try { await agent('p'); return 'unreachable' } catch (e) { return { code: e.code, message: e.message } } + `)) + expect(result.value).toMatchObject({ code: 'AGENT_RESULT' }) + expect((result.value as { message: string }).message).toContain('could not cross the worker boundary') + }) + + it('a child whose dispose() throws synchronously cannot wedge the script (the host acks anyway)', async () => { const ctx = new Context() await ctx.plugin(SubagentService) const provider: SubagentProvider = { @@ -250,7 +389,7 @@ describe('dsh-workflow-workerthread', () => { started: Promise.resolve(), result: Promise.resolve({ output: [{ type: 'text', text: 'fine' }], stopReason: 'completed' }), cancel: () => { /* settled already */ }, - dispose: () => Promise.reject(new Error('dispose exploded')), + dispose: () => { throw new Error('dispose exploded') }, }), } ctx.subagents.registerProvider(provider) diff --git a/packages/workflow/workflow/README.md b/packages/workflow/workflow/README.md index 5ff8028b0d..5332243a85 100644 --- a/packages/workflow/workflow/README.md +++ b/packages/workflow/workflow/README.md @@ -22,7 +22,7 @@ All observe-only emits carrying DATA SNAPSHOTS (`WorkflowRunInfo` = id + meta) - `workflow/start`(info) / `workflow/end`(info, resultInfo) — run lifecycle; `resultInfo` deliberately omits the value. - `workflow/phase`(info, title) / `workflow/log`(info, message) — script narration. -- `workflow/agent-start`(info, agent) / `workflow/agent-end`(info, agent + outcome) — one pair per `agent()` call that STARTED a child run (a call rejected at validation or caps, refused at start, or cancelled while queued for a slot emits no pair), correlated by `seq`. +- `workflow/agent-start`(info, agent) / `workflow/agent-end`(info, agent + outcome) — ready-child lifecycle correlated by `seq`; the [generated event contract](../../../docs/cordis-catalog/events.md#workflowagent-start--emit) defines publication and pairing. ## Non-goals (this cut) diff --git a/packages/workflow/workflow/src/index.ts b/packages/workflow/workflow/src/index.ts index 91caa314dc..19f52b5d88 100644 --- a/packages/workflow/workflow/src/index.ts +++ b/packages/workflow/workflow/src/index.ts @@ -76,8 +76,10 @@ declare module 'cordis' { */ 'workflow/log'(info: WorkflowRunInfo, message: string): void /** - * One `agent()` call started a child run. Paired with - * {@link Events['workflow/agent-end']} by `agent.seq`. + * One `agent()` call established a ready child run. Paired with + * {@link Events['workflow/agent-end']} by `agent.seq`. A call that never + * crosses the provider's publication/readiness boundary emits neither + * event in this pair. * @param info - the run's identity snapshot. * @param agent - the call's sequence number, label, phase, and child id. * @mode emit @@ -129,10 +131,12 @@ export type WorkflowEventName = * - `UNSUPPORTED_SCHEMA` — an `agent()` schema outside the structured-output * subset (see dsh-tools). * - `AGENT_CAP` / `ITEM_CAP` — the run/agent caps tripped. - * - `AGENT_START` — the subagent seam refused to start a child. - * - `AGENT_RESULT` — a child's `result` REJECTED: an infrastructure fault at - * the subagent seam, distinct from a child that failed and resolved (which - * is the per-item `null`, never an error). + * - `AGENT_START` — synchronous subagent start or the provider's asynchronous + * publication/readiness boundary failed before cancellation took precedence. + * - `AGENT_RESULT` — a run whose readiness FULFILLED had its `result` REJECT: an + * infrastructure fault at the subagent seam, even if the rejection settled + * before readiness. This is distinct from a child that failed and resolved + * (which is the per-item `null`, never an error). * - `RESULT_UNSERIALIZABLE` — a value crossing the script/host value boundary * is not plain JSON data. * - `CANCELLED` — the run was cancelled; pending and future hooks reject From 84a9b7374c2a85248fdcd268b6e4dc98141edebc Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 03:11:21 +0800 Subject: [PATCH 202/232] docs: propose further simplifications --- docs/config-catalog.md | 2 +- docs/cordis-catalog/services.md | 2 +- docs/rfc/INDEX.md | 7 ++- .../2026-06-20-unify-agent-and-session-id.md | 54 ++++++------------- ...026-07-04-prune-dead-core-spine-surface.md | 45 +++++++++++----- ...12-collapse-workflow-to-foreground-core.md | 32 +++++++++++ ...6-07-12-drop-unconsumed-registry-events.md | 32 +++++++++++ ...6-07-12-prune-unconsumed-registry-modes.md | 32 +++++++++++ ...2026-07-12-prune-unused-web-seam-fields.md | 30 +++++++++++ ...-12-simplify-session-log-representation.md | 36 +++++++++++++ packages/core/system-prompt/src/index.ts | 2 + packages/ui/acp-agent/src/index.ts | 2 + packages/ui/acp/src/index.ts | 2 + packages/ui/stdio-agent/src/index.ts | 2 + packages/ui/stdio-agent/src/stdio-chat.ts | 2 + 15 files changed, 227 insertions(+), 55 deletions(-) create mode 100644 docs/rfc/proposed/simplification/2026-07-12-collapse-workflow-to-foreground-core.md create mode 100644 docs/rfc/proposed/simplification/2026-07-12-drop-unconsumed-registry-events.md create mode 100644 docs/rfc/proposed/simplification/2026-07-12-prune-unconsumed-registry-modes.md create mode 100644 docs/rfc/proposed/simplification/2026-07-12-prune-unused-web-seam-fields.md create mode 100644 docs/rfc/proposed/simplification/2026-07-12-simplify-session-log-representation.md diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 18ef659ee0..4940b0c966 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -808,7 +808,7 @@ export interface Config { } ``` -Source: [`packages/core/system-prompt/src/index.ts:264`](../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:266`](../packages/core/system-prompt/src/index.ts) ## `@deepseek-ai/dsh-tool-cordis` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index ddf2a860e4..cbf33d094b 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -260,7 +260,7 @@ protect(protection: PromptProtection): () => Promise | void async assemble(context: AssembleContext = {}): Promise ``` -Source: [`packages/core/system-prompt/src/index.ts:379`](../../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:381`](../../packages/core/system-prompt/src/index.ts) ## `ctx.tools` — `ToolRegistry` diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index 654b68ffb5..1b1f956399 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -16,7 +16,12 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | Title | First proposed | |---|---| | [Unify the agent id and the session id](proposed/simplification/2026-06-20-unify-agent-and-session-id.md) | 2026-06-20 | -| [Prune dead core-spine surface — `SurfaceManager.invalidate()`, the loop-internal exports, `ToolExecutionResult.callId`](proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md) | 2026-07-04 | +| [Prune dead public and result surface](proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md) | 2026-07-04 | +| [Collapse workflows to the exercised foreground core](proposed/simplification/2026-07-12-collapse-workflow-to-foreground-core.md) | 2026-07-12 | +| [Drop unconsumed registry events](proposed/simplification/2026-07-12-drop-unconsumed-registry-events.md) | 2026-07-12 | +| [Prune unconsumed registry modes](proposed/simplification/2026-07-12-prune-unconsumed-registry-modes.md) | 2026-07-12 | +| [Prune unused web seam fields](proposed/simplification/2026-07-12-prune-unused-web-seam-fields.md) | 2026-07-12 | +| [Simplify session-log representation](proposed/simplification/2026-07-12-simplify-session-log-representation.md) | 2026-07-12 | ### Architecture diff --git a/docs/rfc/proposed/simplification/2026-06-20-unify-agent-and-session-id.md b/docs/rfc/proposed/simplification/2026-06-20-unify-agent-and-session-id.md index 19dee0ed56..1308da453e 100644 --- a/docs/rfc/proposed/simplification/2026-06-20-unify-agent-and-session-id.md +++ b/docs/rfc/proposed/simplification/2026-06-20-unify-agent-and-session-id.md @@ -4,57 +4,35 @@ Status: proposed ## Problem -The agent factory carries TWO ids for what is, in every live consumer, one thing: +The agent factory carries two ids for what every supported ownership path treats as one live agent/session pair: `agentId`, the `AgentRegistry` handle, and `sessionId`, the event-sourced/persisted-log identity. `CreateAgentOptions` takes both; `ResumeAgentOptions` takes `agentId` plus `resumeSessionId`; in-process subagents mint two independent UUIDs despite recording lineage separately. -- `agentId` — the `AgentRegistry` handle (the actor identity; the registry rejects a duplicate). -- `sessionId` — the event-sourced session / persisted-log identity (`session.header.id`). +ACP already uses the same value for both identities. Where they diverge, consumers maintain translations rather than use the distinction: stdio keeps `labelBySession` solely to recover an agent label from session events, ACP keeps reverse ownership state, and hooks expose both values for authors to reconcile. No production path reattaches one stable actor id to several sessions or drives one session through several agent ids. -`CreateAgentOptions` takes both separately; `ResumeAgentOptions` takes an `agentId` plus a `resumeSessionId`. They diverge in exactly three places: +The [agent-scope design](../../implemented/architecture/2026-07-08-agent-scope-contexts.md) makes the cost concrete. The `AgentLoop` factory reserves agent ids and session ids independently during asynchronous setup, with paired rollback paths, even though successful creation always publishes one pair; the registry and store then recheck live publication. PR #224 correctly closes the former duplicate-session ownership hole by reserving and rechecking both ids, so identity unification is no longer a correctness fix; it is a way to delete the second reservation/index/translation system. -- **Config-driven create** (`AgentLoop.create`): a stable `agentId` (e.g. `"echo"`) with a fresh per-run `sessionId` (`${id}-session-`). -- **Resume**: a caller-supplied `agentId` (e.g. `"main"`) on a persisted `resumeSessionId`. -- **In-process subagent children**: the backend mints the child's `agentId` and `sessionId` as two independent UUIDs (`packages/subagent/subagent-inprocess/src/index.ts`) that nothing distinguishes — `parentSession` records lineage independently. - -Where a live consumer looks an agent up, no lookup needs an id translation: the ACP bridge — the primary production path — already unifies the two (`agentId === sessionId === `; both factory call sites brand `AgentId(sessionId)` directly, and its reverse lookup keys on the `Agent` object itself), and the CC hooks bridge resolves subagent children directly by the `agentId` its lifecycle event carries. The one production population whose two ids actually DIVERGE is the in-process subagent children — the same cosmetic separation as the config path, and the same one-field simplification under unification. One consumer already pays the two-id tax: ui-stdio keeps a `labelBySession` map (seeded from the registry, maintained by `agent/created`/`agent/disposed` listeners) solely to translate `session.header.id` back to an agent id for its turn labels — machinery that deletes outright when the ids unify. And the CC hooks bridge stamps `session_id: agent.session.header.id` into every hook payload, so under unification a subagent hook's `session_id` and `agent_id` become the same string — one less identity for a hook author to reconcile. - -The separation is **latent generality no consumer exercises**: nothing reads a *stable* `agentId` back across runs (each process starts fresh, and persistence keys off the session id, never the agent id). The config path's "stable agentId, fresh sessionId" buys nothing concrete — it is cosmetic. And the `agentId !== sessionId` case is precisely what opens the bash owner-token alias hole: the bash completion-notice routes by `session.header.id`, but the registry enforces uniqueness only on `agentId`, so a programmatic caller registering two agents with different agent ids but the SAME session id can mis-route a notice (see [agent lifecycle and ownership seams](../../implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md) § Seam precondition). The current code documents this as a precondition rather than guaranteeing it. +Session itself repeats the same fact as `Session.id` and `Session.header.id`. Valid store paths construct them equal, but the constructor does not enforce equality and production consumers choose between the two. The duplicate creates an impossible-but-representable mismatch inside the object that owns session identity. ## Proposal -Make an agent BE its session: one id. An agent's registry handle IS its `session.header.id`. +Make an agent's registry id equal its session id. `CreateAgentOptions` accepts one id used for both registration and session creation; resume registers the agent under the resumed session id; subagent creation mints one combined id; Session keeps one identity home by deriving `id` from `header.id` or removing the alias. Replace the two reservation sets and rollback branches with one combined identity reservation, and remove maps/fields whose sole job is translating between the ids. -- `CreateAgentOptions` drops the separate `sessionId` — the single `id` is both the registry handle and the live/persisted session id. (ACP already passes the same UUID for both, so its call site simplifies to one field.) -- `ResumeAgentOptions` drops the separate `agentId` — resuming `sessionId` X registers the agent under id X. (ACP already does this.) -- The config path (`AgentLoop.create`) uses its configured `id` directly as the session id, applying whatever resume-or-create policy it adopts (today it appends a per-run uuid to avoid colliding with an on-disk log; that policy moves onto the single id, e.g. the config id IS the session and a durable backend resumes it — to be settled in the implementing PR). -- The registry's existing unique-`agentId` check becomes, by construction, a unique-session-id guarantee — the bash alias hole is closed with NO new defensive invariant: two agents cannot share a session id because the session id is the agent id. +The config-driven path must first settle its currently hidden resume-or-create policy. Today it uses a stable agent label and fresh UUID-suffixed session id to avoid colliding with a durable log on the next run. Under unification it must deliberately resume the fixed id, mint a fresh combined id, or expose an explicit policy; implementation must not pick silently. + +After stdio's translation map disappears, rerun the consumer search for `agent/created` and `agent/disposed`. If it is empty, remove those notifications together with `AgentRegistry.announced`/`announce()` and their publication rollback machinery. PR #224 deliberately hardened those lifecycle semantics, so this follow-on removal is conditional on proving that identity unification eliminated their last owner. ## Alternatives considered -### Why not just enforce session-id uniqueness in `AgentRegistry.register()`? - -That was the review's first suggestion. It would couple the generic registry to a session-uniqueness assumption (the registry tracks *agents*, not sessions) and entrench the very separation this RFC removes. Unifying the ids closes the hole more cleanly — there is nothing left to enforce. +**Keep separate actor and session identities.** This leaves room for handoff, one actor traversing many logs, or many actors adopting one log. None is supported today. If that product direction arrives, it deserves an explicit actor/handoff seam with ownership semantics rather than two ids that happen to differ in a few constructors. ## Acceptance criteria -- `ctx.agents.create`/`resume` take a single id; the ACP bridge passes one id. -- The config-driven agent path has a deliberate, documented session-id policy (no silent per-run id divergence that no consumer reads). -- The bash owner-token alias hole is gone by construction (no two live agents can share a session id). -- All existing behavior the tests pin (ACP create/resume/load, config startup, durability) still holds — or the tests change WITH the behavior where the divergence was an artifact (per AGENTS.md "tests document behavior, not golden truth"). +- Agent create/resume and subagent creation carry one identity; `Session` stores it in one place. +- The factory keeps one in-flight reservation/rollback path while preserving PR #224's duplicate and quiescence guarantees. +- ACP, stdio, hooks, bash ownership, persistence, and lineage need no agent/session id translation. +- The config-driven resume-or-create policy is explicit and covered across a durable restart. +- `agent/created`/`agent/disposed` are removed only if a post-change production search finds no listener; otherwise they and their publication semantics stay. +- Typecheck, coverage, snapshots, doc-sync, module-graph verification, build, and hygiene pass. ## Risks -This touches public factory interfaces (`CreateAgentOptions`, `ResumeAgentOptions`, `AgentFactory`) and the config-agent id scheme, so it is a deliberate cross-package change, not a local patch — it ships as its own PR (converged with Codex); the bash owner-token precondition it closes is documented in [agent lifecycle and ownership seams](../../implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md). - -The genuine risks of collapsing the two ids into one (the case AGAINST this proposal — to be weighed honestly before implementing): - -- **It forecloses a one-agent-resumes-many-sessions / one-session-driven-by-many-agents future.** Today the separate ids leave room for an agent (a stable actor) to detach from one session and attach to another, or for a handoff where a new agent process adopts an existing session under a new actor handle. Unifying makes "agent" and "session" the same lifetime, so any such future needs a NEW seam (e.g. an explicit `actorId` distinct from the session) — re-introducing the very separation we removed. We judge this generality currently unused, but it is a door this change closes. - -- **Subagents / fork / spawn may WANT a stable actor id across forked sessions.** The [subagent seam](../../implemented/feature/2026-06-21-subagent-capability-seam.md) runs a child agent seeded from a parent's event log (fork). If a future design wants "the same agent identity across a fork" (parent and child share an actor but have distinct session logs), a unified id blocks it. The implementing PR must check the intended fork/spawn model BEFORE unifying, or accept that fork always mints a fresh combined id. (As shipped, each subagent child mints its own distinct agent id — `parentSession` records lineage — so the seam does not currently rely on a shared actor id, but unifying would foreclose adding one.) - -- **The config-driven resume-or-create policy becomes load-bearing, not cosmetic.** Today the per-run-uuid session id quietly sidesteps the "a fixed id collides with its own on-disk log on the second run" problem. Once the id is unified and stable, a config agent restarting MUST decide resume-vs-fresh deliberately — there is no longer a throwaway session id to hide behind. Getting this wrong reintroduces the create-collision the uuid was avoiding (a durable backend refuses to re-create an id whose log exists). This is the one real design decision the implementing PR owns, and it is easy to get subtly wrong. - -- **Persisted/on-disk identity becomes the agent identity.** Unifying means the registry handle is now a persisted, externally-meaningful string (a session id a client chose), not an internal label. A caller that previously used a short human label (`"main"`) as the agent id now must use the session id. This is fine for ACP (already a UUID) but is a semantic narrowing for any programmatic embedder that relied on naming its agents independently of session storage. - -- **Migration churn touches every create/resume call site and its tests.** `CreateAgentOptions`/`ResumeAgentOptions` shape changes ripple to ACP, the config path, the agent-loop factory, and ~dozens of test fixtures that currently pass distinct `agentId`/`sessionId` (some deliberately distinct to exercise the divergence — those tests change WITH the behavior, per AGENTS.md "tests document behavior, not golden truth"). The risk is mechanical but broad; a missed call site is a type error, but a missed *test* could silently lose coverage of a path. - -The one real design question the implementing PR must settle first is the config-driven resume-or-create policy once the id is unified (today's per-run-uuid behavior is a demo simplification already flagged `TODO(demo)`). If, on closer look, the fork/spawn or multi-session-actor futures turn out to be wanted, this RFC should be REJECTED in favor of the lighter "enforce session-id uniqueness in the registry" guard — the alias hole is not reachable via ACP, so keeping the ids separate and merely documenting (or mechanically enforcing) the precondition remains a valid alternative. +This forecloses latent multi-session-actor and session-handoff designs, makes persisted client-chosen session identity the registry identity, and touches every factory fixture. The config restart decision is blocking, not mechanical. If separate actor identity becomes a real requirement, reject this RFC and retain PR #224's already-correct dual reservation system. diff --git a/docs/rfc/proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md b/docs/rfc/proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md index c6bfbe967c..5a130057cb 100644 --- a/docs/rfc/proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md +++ b/docs/rfc/proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md @@ -1,32 +1,49 @@ -# RFC: Prune dead core-spine surface — `SurfaceManager.invalidate()`, the loop-internal exports, `ToolExecutionResult.callId` +# RFC: Prune dead public and result surface Status: proposed ## Problem -Three pieces of public spine surface share one defect class: their only possible role is to be ignored, or their trigger is unreachable. +Several package-root exports, result fields, and convenience methods have no production consumer. They survive because tests import internals through public entry points or because a type anticipated a caller that never arrived. Each item is small in isolation, but together they enlarge the SDK contract, generated catalogs, documentation, and regression matrix without enabling a shipped path. -1. **`SurfaceManager.invalidate()`** (`packages/core/session/src/surface.ts`). Its documented trigger — "the log has been replaced wholesale (e.g. after Session seed)" — is structurally unreachable: seeding happens inside the `Session` constructor, `_surface` is created lazily on first access, and the log reference is never reassigned afterward, so no constructed `SurfaceManager` ever observes a wholesale replacement. Sole caller: its own unit test. A rollback primitive protecting a scenario the implementation cannot produce. -2. **The `runLoop`, `Inbox`, and `InboxMessage` exports** (`packages/core/agent-loop/src/index.ts`). `runLoop` has no importer outside the package — the only callers are the package's own internals (the agent constructs its loop with it), so the public re-export has zero consumers; `Inbox`/`InboxMessage` likewise reach outside code only through the package's own inbox spec (switchable to the source module). The exports contradict the package's own docs — the inbox module doc says the public surface is `Agent.send()`/`Agent.steer()` — and the [architecture dependency rule](../../../architecture.md): nothing programs against `dsh-agent-loop`; a replacement loop is a different bundle built on `dsh-agent`, not a consumer of this package's internals. `ReactLoopAgent` stays exported (cross-package tests construct it by package name). -3. **`ToolExecutionResult.callId`** (`packages/core/tools/src/index.ts`; the input `ToolExecution.callId` stays). Zero consumers read it. A `tools/execute` wrapper may construct or replace a result, but the registry rejects any `callId` that differs from the immutable execution identity and rebuilds later outcomes from protected snapshots; `tools/post-execute` receives that same execution beside the result, and the observe-only `tools/result` notification receives both as immutable values. The loop independently correlates with its model call's `call.id`, while ACP correlates through the session event's `data.callId`. The result field is therefore a compulsory copy of information already present at every extension point, plus validation and regression tests whose only job is to prove the copy cannot disagree. +The production corpus is `packages/*/*/src`, example sources/config, and runtime scripts; tests, package READMEs, generated catalogs, and RFC prose are evidence of publication but not consumers. Exact-symbol searches produce the following inventory: + +| Surface | Production evidence | Simplification | +| --- | --- | --- | +| `SurfaceManager.invalidate()` | Only its unit test calls it; seeding completes before the lazily-created manager exists and the session never replaces its log reference. | Delete it and its impossible wholesale-replacement contract. | +| `ToolExecutionResult.callId` | Every hook already receives the immutable `ToolExecution`; the loop and ACP correlate through the call/session event. No consumer reads the duplicate result field. | Remove the field, copy/mismatch guards, and tests that prove the duplicate cannot disagree. | +| `ReactLoopAgent` root export | Outside-package named imports are tests; production programs against `Agent` and creates/resumes through `ctx.agents`. | Return/interface-type `Agent` and make the concrete loop class package-internal; keep the deliberate synchronous config-only `AgentLoop.create()` path. | +| `workflow-workerthread` protocol/runtime/session re-exports and named `WorkerWorkflowEngine` | Every package-name consumer uses the default engine; the workflow RFC already defines the worker wire protocol as private. | Keep the default plugin class/config contract; drop the duplicate named class export and keep protocol modules source-private. | +| `code-runtime-worker` protocol/bootstrap re-exports | Outside-package production/e2e consumers use `WorkerCodeRuntime` and config, not `BootstrapPort`, `PatchableStream`, or worker message/boot types. | Keep the runtime class/config contract and make its wire/bootstrap vocabulary source-private. | +| `providerWording` and `completedTurnPrefix` root exports | Each has one same-package production caller; only the balanced-prefix helper has a same-package white-box test. | Make them source-private and test provider behavior. | +| `depthOf`, `SubagentDepthError`, `SENSITIVE_ENV_PATTERN`, `waitForExit`, and `exitsWithin` root exports | Production subagent backends consume the in-process runner and subprocess construction/disposal helpers, not these enforcement/test internals. | Keep depth/environment/exit behavior but make the helpers and error/regex source-private; test through spawn and disposal. | +| `PersistenceCoordinator.inits`, backend `inits` accessors, `seedCoversPrefix`, and `assertSerializable` | The accessors exist for white-box tests; the helpers have no outside production importer. | Observe initialization through `session/flush` and internalize the helpers. Keep both backends, `SessionHeader`, and SQLite's version contract. | +| `LlmService.models()` | Tests/docs only; production resolves a configured adapter directly. | Delete the convenience while keeping both LLM adapters. | +| `LlmError.status` and replay status | Adapters/replay populate it, but production branches on stable error code/message and never reads raw status. | Remove the unread field and replay plumbing while preserving error classification. | +| `BlockAssembler.push()` return value | Both production callers ignore the returned completed block. | Return `void`; keep the deliberately public `blocks()`/`message()` contract. | +| `compactRegion`'s separate `session` argument | The sole production caller passes the same object already present as `agent.session`; the API permits an incoherent pair. | Use `agent.session` as the one source of truth. | +| `CompactionResult.startSeq`, `summarySeq`, `endSeq`, and `summary` | The production consumer reads only shadowed range/seq/token accounting; the durable log owns summary and event identity. | Remove the four result echoes while keeping both shared transcript renderers. | +| `BasicCompactService` estimation/summarization visibility | No outside production caller invokes the five methods; the implemented RFC names only `estimateContentTokens()` and `summarize()` as subclass hooks. | Make those two `protected` and the three orchestration-only estimators private. | +| `CodeLogEntry.source`/`level` and `RunCodeMeta.dispatches` | Every production consumer maps logs to text; no presenter/model path reads the other fields or the persisted dispatch count. | Make code-runtime logs strings (or text-only entries) and remove result-meta dispatch plumbing; keep the local counter that mints deterministic dispatch ids. | +| `ToolNotFoundError.toolName`, `SystemPrompt.config`, and `BashTask.command` | Each stored public value has no production reader. | Drop the unread field while retaining error messages, resolved configuration behavior, and task lifecycle. | + +The earlier version of this RFC also named `runLoop`, `Inbox`, and `InboxMessage`; the agent-scope branch has already made those package-internal, so they are no longer proposed work. ## Proposal -Delete the method and its test; delete the three export lines and their `packages/core/agent-loop/README.md` rows, pointing the inbox spec at the source module; drop the result field from the type, the registry's construction sites (deny, dispatch, `toolErrorResult`, post-execute snapshots), its around-wrapper mismatch validation, the loop's ignore-comment, and the tests that prove the duplicate id cannot matter. The result's consumed `additionalContext` ferry and the execution object's authoritative `callId` stay untouched. Update the `ToolExecutionResult` paste in [tools.md](../../../core-data-structures/tools.md) (and its `scripts/type-equiv.manifest.json` row) and the result-shape row in `packages/core/tools/README.md`; for the `invalidate()` removal, amend the [session-surface RFC](../../implemented/architecture/2026-06-18-session-surface.md)'s full-rebuild-after-wholesale-replacement sentence per [implemented/AGENTS.md](../../implemented/AGENTS.md). - -Sequencing: the surface-cache work (tool-pairing balance caching) neither uses nor touches `invalidate`, so that removal can land after or alongside it mechanically. The full execution pipeline carries the immutable execution object through pre-policy, guards, around-dispatch wrappers, post-policy, and final result observation; nothing needs the result to repeat its id. +Remove or demote every row as one bounded coordinated public-surface cleanup. Update package READMEs, JSDoc, generated API/event catalogs, type-equivalence records, exports maps where needed, and tests so they exercise the owning public seam instead of preserving test-only entry points. Do not collapse any capability seam, LLM adapter, persistence backend, or lifecycle quiescence contract. ## Alternatives considered -### Why not keep them? - -A future consumer that swaps a session's log in place would want a reset primitive — it re-adds `invalidate` with itself. A replacement-loop author might want to reuse the inbox or the driver — the architecture already answers that a replacement loop is a different bundle. An isolated result-logging listener might want self-contained correlation on the result — the execution object is in scope at every listener, and a field that exists only to be ignored is worse than absent: it invites exactly the orphaned-pairing bug the loop comment warns about. +**Keep test conveniences and self-contained results public.** Public helpers can make white-box tests convenient, self-contained result fields can look ergonomic, and future embedders might want the concrete loop or enumeration methods. Those benefits are hypothetical; today they make every implementation and document explain states that no shipped caller can observe. A real consumer can introduce the smallest contract it needs, with its ownership and failure semantics known. ## Acceptance criteria -- `invalidate()` and the result `callId` appear only in this RFC; `runLoop`/`Inbox`/`InboxMessage` remain package-internal only — no re-export from the package index and no outside-package importer; the agent-loop README lists only the consumed public surface; the inbox spec imports the source module. -- The complete tool-pipeline contract tests pass with the shrunk result type; the around-wrapper mismatch test, mutation-guard id assertions, and proves-ignored loop test disappear with the duplicate field. +- Exact-symbol searches show no removed surface outside this RFC and any implemented-RFC amendments. +- Every surface listed in this RFC is absent or demoted as specified; deliberately retained extension/test contracts outside the inventory are unchanged. +- Tool execution, compaction, both LLM adapters, both persistence backends, workflow isolation, and agent creation/resume retain their shipped behavior. +- Typecheck, coverage, snapshots, doc-sync, module-graph verification, build, and hygiene pass. ## Risks -All three are compile-visible removals with no runtime behavior change on any shipped path. +Most removals are compile-visible but runtime-neutral. The compaction argument cleanup deliberately forbids a session/context mismatch that no caller uses; the remaining changes can require external pre-release embedders to import less or adjust result shapes. The repository is unreleased, so carrying unsupported surface is the larger foundation cost. diff --git a/docs/rfc/proposed/simplification/2026-07-12-collapse-workflow-to-foreground-core.md b/docs/rfc/proposed/simplification/2026-07-12-collapse-workflow-to-foreground-core.md new file mode 100644 index 0000000000..e80cbd9414 --- /dev/null +++ b/docs/rfc/proposed/simplification/2026-07-12-collapse-workflow-to-foreground-core.md @@ -0,0 +1,32 @@ +# RFC: Collapse workflows to the exercised foreground core + +Status: proposed + +## Problem + +The workflow capability executes foreground JavaScript that composes subagents, but it also carries an unconsumed progress-observation system. No production listener subscribes to any of the six `workflow/*` events; listeners exist only in workflow tests. Nevertheless the seam defines run/phase/agent outcome snapshots, the worker sends phase/log/agent lifecycle protocol messages, the host clones payloads and keeps a `liveAgents` pairing ledger, and the engine maintains run ids solely to correlate those notifications. + +The progress vocabulary is not merely unused; it cannot serve its only named future owner without redesign. `WorkflowRunInfo` contains `{id, meta}` but no parent agent, session, or tool-call identity, while the model-facing tool never exposes the run id. A global ACP listener could not route an event to the correct client session. `meta.phases` is never consulted, `phase(title)` does not validate against it, phase `detail`/`model` and agent `label`/`phase` feed only events, and `whenToUse` is validated and copied but never rendered or selected. `phase()` and `log()` still cross the worker boundary despite having no receiver. + +`WorkflowError.fatal` is the same speculative branch in miniature: every production construction is fatal, `fatal: false` exists only in tests, and combinators already distinguish workflow failures with `instanceof`. + +## Proposal + +Keep the exercised core: `agent(prompt, { schema, model })`, `parallel`, `pipeline`, `args`, concurrency/agent caps, cancellation, bounded disposal, structured results, worker isolation, and foreground tool collection. Remove all `workflow/*` events and their event-only info/outcome types; remove `phase()`, `log()`, agent `label`/`phase`, phase declarations, `whenToUse`, and their worker messages/host observers; collapse workflow metadata to the name the tool actually uses; remove event-only run ids/meta snapshots and the synthesized agent-end ledger. Make `WorkflowError` one fatal error class without a boolean mode or `isFatalWorkflowError()` helper. + +Amend the implemented dynamic-workflow RFC and update the seam/tool/worker READMEs, tool schema, generated catalogs and package graph, worker type-equivalence records, unit tests, and workflow snapshot/header fixtures. Progress UI work, if commissioned, starts from a correlation contract that names the parent agent/session/tool call instead of reviving this protocol unchanged. + +## Alternatives considered + +**Keep the prebuilt observation vocabulary for a future UI.** The current shape resembles Claude Code dynamic-workflow metadata, and PR #233 deliberately added host pairing state and synthesized agent-end events so observers would see balanced lifecycles; this proposal reopens that recent choice rather than treating the machinery as accidental. Removing it gives up compatibility-by-shape and makes progress UI a new design task, but the existing shape still lacks routable ownership, so its hardened pairing cannot make the named ACP owner viable without redesign. + +## Acceptance criteria + +- The workflow public seam contains only execution, cancellation, result, and disposal contracts with a production consumer. +- No workflow event, phase/log protocol message, run-id generator, progress-only metadata, host pairing ledger, or fatal-mode branch remains. +- Parallel/pipeline behavior, caps, cancellation quiescence, worker containment, structured output, and the model-facing workflow scenarios retain coverage. +- Typecheck, coverage, snapshots, doc-sync, module-graph verification, build, and hygiene pass. + +## Risks + +This is a compile-visible contraction of the workflow DSL and event taxonomy. Existing unshipped scripts that use `phase`, `log`, labels, or descriptive metadata must shrink, and a future observer must add a better-correlated seam. The execution semantics that make workflows useful do not change. diff --git a/docs/rfc/proposed/simplification/2026-07-12-drop-unconsumed-registry-events.md b/docs/rfc/proposed/simplification/2026-07-12-drop-unconsumed-registry-events.md new file mode 100644 index 0000000000..ccb2d0af44 --- /dev/null +++ b/docs/rfc/proposed/simplification/2026-07-12-drop-unconsumed-registry-events.md @@ -0,0 +1,32 @@ +# RFC: Drop unconsumed registry events + +Status: proposed + +## Problem + +Four registry notifications are produced but have no production listener. The generated producer/consumer matrix and exact event-name searches find only declarations, emit sites, invariant metadata, tests, generated catalogs, and prose for `tools/change`, `system-prompt/change`, `skill/provider-added`, and `skill/provider-removed`. + +No shipped path uses these signals for invalidation: request assembly deliberately reruns for every step, tool/system-prompt membership is now agent-scoped, and skill discovery reads providers on demand. PR #224 also makes the payloadless tool/system-prompt notices less coherent because a change may be scope-local but the event cannot identify that scope. + +Earlier registry work retained tool/system-prompt notifications as low-cost hooks for a hypothetical live UI even while the equivalent LLM and web notifications were removed. The new evidence is that no owner has appeared, per-step assembly needs no signal, and scope-local membership has made the old payload insufficient for that hypothetical owner. This proposal does not include `subagent/provider-added`/`removed`, which `tool-subagent` consumes to tolerate concurrent sibling-plugin loading. + +## Proposal + +Delete the four declarations and every emit path, rollback-order branch, invariant-table entry, test, and generated catalog/matrix row that exists only for them. Remove the corresponding registry README/JSDoc contract. Where tests used an event to observe cleanup, assert public lookup or assembled output instead. + +Amend the [agent-scope RFC](../../implemented/architecture/2026-07-08-agent-scope-contexts.md) and reconstructable-request documentation so current behavior has one home: request inputs are recomputed at the request boundary, not maintained by invalidation signals. + +## Alternatives considered + +**Keep cheap notifications for future plugins.** An external plugin could subscribe later, and provider lifecycle signals can solve sibling-load races. The subagent event demonstrates the bar: it has a real concurrent loader consumer and a payload tailored to that job. These four have neither; a future consumer should introduce the scoped identity and timing it demonstrably needs. + +## Acceptance criteria + +- The generated event matrix contains no row or registry-subject inventory entry for the four notifications. +- Tool schema assembly, system-prompt assembly, skill discovery, ordinary effect rollback/disposal, and registry lookup cleanup behave unchanged; listener-triggered rollback disappears with the events. +- The real subagent provider lifecycle consumer remains covered. +- Typecheck, coverage, snapshots, doc-sync, module-graph verification, build, and hygiene pass. + +## Risks + +This deliberately removes pre-release plugin observation points. A future live registry UI would need a new scoped snapshot/change contract instead of subscribing to payloadless global notifications. diff --git a/docs/rfc/proposed/simplification/2026-07-12-prune-unconsumed-registry-modes.md b/docs/rfc/proposed/simplification/2026-07-12-prune-unconsumed-registry-modes.md new file mode 100644 index 0000000000..500a4254a4 --- /dev/null +++ b/docs/rfc/proposed/simplification/2026-07-12-prune-unconsumed-registry-modes.md @@ -0,0 +1,32 @@ +# RFC: Prune unconsumed registry modes + +Status: proposed + +## Problem + +Two registries implement modes that no production registration populates. + +The skill service's embedded-runtime subsystem has zero production caller of `ctx.skills.register()`. It adds a reserved `runtime` provider name, a runtime map/rank/source, duplicate policy, a second revision in cache keys, normalization, disposers, and tests alongside the provider seam every shipped skill already uses. `SkillSummary.whenToUse` and candidate/definition `path` are parsed and copied but never read by a production consumer: the model catalog renders name/description, resource loading uses `resourceBase`, and providers own their locator. The deliberately open `metadata` extension point stays. + +The agent-scope work generalized system-prompt tool and variable providers to scope-local registration, but every production `systemPrompt.tools()` and `systemPrompt.variable()` registration is global. Scoped assembly executes the merge path each step but finds no scoped tool/variable contribution. Scoped sections and protections are live and stay. Supporting empty scope-local tool/variable layers adds maps plus merge/shadow/cleanup branches for combinations the product never constructs. + +## Proposal + +Remove `SkillService.register()`, `SkillRegistration`, the runtime pseudo-provider and reserved-name rules, runtime revisions/cache branches, and runtime-only source/rank normalization. Tests that need an embedded skill register a small real provider. Retain `providerRevision` as the in-flight discovery epoch, but key completed catalogs by cwd alone: every provider mutation synchronously clears the cache, and the post-await revision comparison already prevents inserting stale work. Remove `whenToUse`, `SkillCandidate.path`, and `SkillDefinition.path` from the skill contract and local-provider copies while retaining provider locator/root paths; retain `metadata`, `disableModelInvocation`, `source`, `provider`, `locator`, and `resourceBase` as either deliberate extension vocabulary or production-consumed fields. + +Keep system-prompt sections/protections scoped, but make tool-schema and variable providers global-only and delete their scoped maps/merge logic. Fail loud if a caller attempts these unsupported scope/mode combinations instead of silently widening them. Keep both global and scoped tool guards: the agent-scope/interception design deliberately defines them as owner-final policy APIs. Amend the skill-system and agent-scope RFCs, READMEs, JSDoc, catalogs, and tests. + +## Alternatives considered + +**Keep all registry modes for embedders.** Runtime skill registration is convenient, and scoped variables/tool-schema fragments could support per-agent prompt customization. Neither has a shipped owner. A real embedded skill can be a provider; per-agent executable tools already belong in `agent.ctx.tools`; per-agent prompt facts can use scoped sections or context-aware global providers. + +## Acceptance criteria + +- Skill collection has one provider-backed path, a cwd-only completed-cache key, and a revision epoch only for in-flight invalidation; retained skill fields have a production reader or a recorded deliberate extension contract. +- System-prompt tools/variables have one global path; sections/protections retain their scoped behavior. +- Global and scoped tool guards, native finality, and Code Mode finality behavior remain covered. +- Typecheck, coverage, snapshots, doc-sync, module-graph verification, build, and hygiene pass. + +## Risks + +These are compile-visible contractions of two pre-release registries. The fail-loud rule must distinguish an unsupported scoped registration from an ordinary global registration without disturbing Cordis effect cleanup, and skill-local frontmatter parsing must continue to preserve and validate the supported metadata schema. diff --git a/docs/rfc/proposed/simplification/2026-07-12-prune-unused-web-seam-fields.md b/docs/rfc/proposed/simplification/2026-07-12-prune-unused-web-seam-fields.md new file mode 100644 index 0000000000..1a8495426e --- /dev/null +++ b/docs/rfc/proposed/simplification/2026-07-12-prune-unused-web-seam-fields.md @@ -0,0 +1,30 @@ +# RFC: Prune unused web seam fields + +Status: proposed + +## Problem + +The web capability carries request/result/status values that every shipped implementation populates but no production consumer reads. `WebSearchResult.providerId` and `query` and `WebFetchResult.providerId` are result echoes; `tool-web` formats only content/sources/truncation or final URL/status/body/truncation, and no other runtime reads them. Search providers return `WebProviderStatus.reason`, but resolution checks only `available` and intentionally emits a generic unavailable diagnostic. + +`WebFetchRequest.timeoutMs` is likewise never set by a production caller. `tool-web` supplies only the URL, uses the tool definition's timeout plus `exec.signal` for the caller deadline, and relies on the local provider's configured default as a backstop. The unused per-request override forces `web-fetch-local` to expose `maxTimeoutMs`, clamp two timeout sources, and document/test precedence no product path can select. `WebExecContext` is another one-field wrapper: every caller allocates `{ signal }` and every provider immediately unwraps `exec?.signal`; no second execution-control field exists. + +## Proposal + +Remove the search/fetch `providerId` result echoes and search `query` echo; callers already own the request and provider selection. Shrink provider status to availability alone, preferably a boolean-returning method if that produces the clearest seam. Remove per-request fetch timeout, `maxTimeoutMs`, and their clamp/validation branches while retaining the provider's configurable default timeout and tool-level deadline. Replace `WebExecContext` with a direct optional `AbortSignal` parameter. + +Update all web implementations, the model-facing tool, package READMEs/JSDoc, type-equivalence records, and tests. Keep the interface/implementation/consumer package split, provider selection, source citations, final-URL/status data, truncation reporting, and all safety limits. + +## Alternatives considered + +**Keep self-describing results, per-request deadlines, and an extensible execution-context object.** Result echoes can help generic telemetry, a request timeout can help trusted programmatic callers, and the wrapper leaves room for future controls. No such consumer/second field exists; carrying duplicate identity, a second deadline policy, and wrap/unwrap plumbing through every provider makes the current contract harder to implement and explain. If telemetry or per-call budget control arrives, it should define which deadline wins, where provider identity is observed, and whether multiple controls justify a context object. + +## Acceptance criteria + +- Every retained web request/result/status field has a production reader or is required to execute the provider request. +- Tool-visible search/fetch output, provider fallback, abort behavior, configured timeout backstop, truncation, and citations remain covered. +- No `maxTimeoutMs`, request-timeout precedence branch, or one-field execution-context wrapper remains. +- Typecheck, coverage, snapshots, doc-sync, module-graph verification, build, and hygiene pass. + +## Risks + +Pre-release programmatic callers lose result provenance echoes and per-request fetch deadlines. The provider still has a deployment-configurable timeout and respects cancellation, so the simplification removes configurability rather than a safety bound. diff --git a/docs/rfc/proposed/simplification/2026-07-12-simplify-session-log-representation.md b/docs/rfc/proposed/simplification/2026-07-12-simplify-session-log-representation.md new file mode 100644 index 0000000000..d322e246df --- /dev/null +++ b/docs/rfc/proposed/simplification/2026-07-12-simplify-session-log-representation.md @@ -0,0 +1,36 @@ +# RFC: Simplify session-log representation + +Status: proposed + +## Problem + +The session log maintains two representations that cost more machinery than their consumers require: a pseudo-linked surface and custom request-header deltas. + +`SurfaceManager` stores the same order in an array, a seq map, and mutable `prev`/`next` links. Production never reads `prev`; compact's sole `next` read is the successor of an array position. Replacement already uses `indexOf`, so the links do not make its dominant operation constant-time. A seq array with linear replacement lookup has the same asymptotic replacement cost and one representation to validate. + +The request-header subsystem implements a custom system/tool delta codec and transmission-decision layer even though its contract says deltas are an encoding optimization, not a reconstructability requirement. A canonical full `request/header` only when the assembled header changes preserves replay while deleting `SystemDelta`, `ToolsDelta`, round-trip fallback, and the durable `request/header-delta` variant. Codec-only vocabulary disappears with the codec, not because its individual arms were invalid. + +This proposal deliberately retains append and replacement `sourceEventSeqs`, crash-repair provenance, and all `SessionStartSource` variants: implemented RFCs give those fields an audit/interception role that zero current readers does not overturn. + +## Proposal + +Make `SurfaceManager.nodes` a `readonly number[]` of event sequences and remove the public `SurfaceNode` shape. Keep the existing replacement generation; update tool-pairing balance and compaction callers to use array values/indices for predecessor, successor, and replacement ranges, removing node links and the seq-to-node map. Replace header deltas with canonical full changed-header snapshots and remove the delta codec/event/tests. + +Amend the session-surface and reconstructable-request RFCs where they describe the removed encoding. Update event types/invariants, request logging/replay, persistence fixtures, generated catalogs, package docs, and snapshots. Give changed full snapshots an explicit `change` reason (or simplify the reason contract as part of the same implementation), so they are distinguishable from initial/resume/fallback writes. + +`SESSION_FORMAT_VERSION` is deliberately pinned at `0`, so an old v0 log containing `request/header-delta` would otherwise pass the version check and silently lose header changes after the delta fold is deleted. Seed/load validation must reject that legacy event fail-loud at the format boundary; no compatibility fold or migration is added. + +## Alternatives considered + +**Keep linked nodes and compact deltas for possible scale.** Links could help a future cursor API, and deltas can reduce logs when large tool schemas change by a small amount. No shipped cursor uses the links, while full snapshots trade disk size for substantially simpler correctness. If header volume proves material, compression or a measured canonical-delta scheme can be designed around real traces. + +## Acceptance criteria + +- `SurfaceManager.nodes` is one ordered seq array with no `SurfaceNode`, link fields, or seq-to-node map; incremental append processing and replacement-generation invalidation remain. +- Replaying full changed-header snapshots reconstructs exactly the same requests; no header-delta event/type/codec remains. +- A v0 seed or persisted log containing legacy `request/header-delta` is rejected before replay, with coverage for JSONL and SQLite load paths. +- Current-version JSONL/SQLite replay, provenance, crash repair, compaction, snapshots, invariants, typecheck, coverage, doc-sync, build, and hygiene pass. + +## Risks + +Full headers increase log volume, and linear replacement lookup could be slower on very large surfaces. Replacements are already linear because the implementation calls `indexOf`; benchmarks should be added only if real traces show the simpler array is a bottleneck. Because the format version remains `0`, forgetting the explicit legacy-event rejection would be silent data corruption rather than a type error; the fail-loud load test is therefore part of the proposal, not optional cleanup. diff --git a/packages/core/system-prompt/src/index.ts b/packages/core/system-prompt/src/index.ts index 6d3ed3af58..d91b0eb07d 100644 --- a/packages/core/system-prompt/src/index.ts +++ b/packages/core/system-prompt/src/index.ts @@ -99,6 +99,8 @@ export interface PromptSection { export interface AssembledSection { /** The contributing section's unique name. */ name: string + // TODO(assembled-section-order): drop this output field; registry order has + // already sorted the array, and no production renderer/listener reads it. /** The contributing section's order (sections arrive sorted ascending). */ order: number /** The resolved (but not yet interpolated) section text. */ diff --git a/packages/ui/acp-agent/src/index.ts b/packages/ui/acp-agent/src/index.ts index 27b919f756..2de52bda60 100644 --- a/packages/ui/acp-agent/src/index.ts +++ b/packages/ui/acp-agent/src/index.ts @@ -72,6 +72,8 @@ export const Config: z = z.object({ // schemastery's native [] default would read as an invalid configured list. toolOrder: z.array(z.string()).default(undefined as unknown as string[]), tools: ToolRegistry.Config, + // TODO(single-default-literal): share this schema default and the defensive + // apply() fallback through one named constant while retaining both boundaries. persistenceRoot: z.string().default('./.sessions'), skills: agentCore.SkillConfigSchema, }) diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index a3ce9b5117..1abd687af1 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -362,6 +362,8 @@ export function apply(ctx: Context, config: AcpConfig): void { // this warn sink so a throwing tool presenter is logged, not propagated. const makePresenter = (agent?: Agent): ToolPresenter => new ToolPresenter(tools, (message) => { logger.warn(message) }, agent) + // TODO(derive-acp-session-id): derive an event's id from agent.session and + // verify sessions.get(id)?.agent === agent; then this reverse map disappears. // Live sessions keyed by id (RFC 011 multi-session), plus an agent→sessionId // reverse map so `agent/*` events (which carry only the Agent) demux in O(1). // The two stay in lockstep: a record is added to `sessions` and the agent to diff --git a/packages/ui/stdio-agent/src/index.ts b/packages/ui/stdio-agent/src/index.ts index 1037c28112..127851eaf5 100644 --- a/packages/ui/stdio-agent/src/index.ts +++ b/packages/ui/stdio-agent/src/index.ts @@ -93,6 +93,8 @@ export const Config: z = z.object({ // schemastery's native [] default would read as an invalid configured list. toolOrder: z.array(z.string()).default(undefined as unknown as string[]), tools: ToolRegistry.Config, + // TODO(single-default-literal): share these schema defaults and defensive + // apply() fallbacks through named constants while retaining both boundaries. persistenceRoot: z.string().default('./.sessions'), welcome: z.string().default('ready.'), skills: agentCore.SkillConfigSchema, diff --git a/packages/ui/stdio-agent/src/stdio-chat.ts b/packages/ui/stdio-agent/src/stdio-chat.ts index 4c37f40d37..8e3c1f467b 100644 --- a/packages/ui/stdio-agent/src/stdio-chat.ts +++ b/packages/ui/stdio-agent/src/stdio-chat.ts @@ -36,6 +36,8 @@ export const inject = ['agents', 'userInteraction'] export interface Config { /** Banner printed once on start, before the first `> ` prompt. */ welcome?: string + // TODO(fixed-stdio-agent): this app-internal plugin is mounted only for the + // precreated `main` agent; remove configurability and its config-only test. /** Id of the agent stdin drives (`send`/`steer`) and whose status gates the EOF exit; rendering is global. Defaults to `'main'`. */ agent?: string } From 36b837002718c23cd87d277e438c0fc74336bbc4 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 03:51:55 +0800 Subject: [PATCH 203/232] fix(scope): close remaining ownership boundaries --- docs/config-catalog.md | 23 +- docs/cookbook/adding-a-tool.md | 6 +- docs/cordis-catalog/events.md | 16 +- docs/cordis-catalog/services.md | 12 +- docs/core-data-structures/skills.md | 10 +- docs/core-data-structures/tools.md | 4 +- docs/event-producer-consumer.md | 16 +- docs/module-graph.md | 43 +- docs/persistence-catalog.md | 30 +- docs/rfc/INDEX.md | 2 +- ...06-11-dev-invariants-over-deep-readonly.md | 53 +- .../2026-07-08-agent-scope-contexts.md | 76 ++- .../2026-06-21-subagent-capability-seam.md | 2 +- .../feature/2026-06-30-interception-seams.md | 6 +- .../2026-06-11-immutable-public-surfaces.md | 9 +- .../compact-basic/tests/compact-basic.spec.ts | 2 +- .../tests/compact-loop-repro.spec.ts | 2 +- .../cordis/tool-cordis/src/api-catalog.ts | 2 +- packages/core/agent-loop/README.md | 4 +- packages/core/agent-loop/src/index.ts | 28 +- packages/core/agent-loop/tests/resume.spec.ts | 66 ++- .../agent-loop/tests/review-fixes.spec.ts | 12 +- .../agent-loop/tests/scope-lifecycle.spec.ts | 32 +- packages/core/agent/README.md | 2 +- packages/core/agent/src/index.ts | 13 +- packages/core/scope/README.md | 2 +- packages/core/scope/src/index.ts | 10 +- packages/core/scope/tests/scope.spec.ts | 10 + packages/core/session/README.md | 19 +- packages/core/session/src/index.ts | 324 ++++++++--- packages/core/session/src/json.ts | 133 ++++- packages/core/session/src/types.ts | 6 +- packages/core/session/tests/fork.spec.ts | 7 +- packages/core/session/tests/json.spec.ts | 152 +++++ packages/core/session/tests/session.spec.ts | 521 +++++++++++++++++- packages/core/system-prompt/README.md | 6 +- packages/core/system-prompt/package.json | 2 + packages/core/system-prompt/src/index.ts | 55 +- .../system-prompt/tests/system-prompt.spec.ts | 24 + .../system-prompt/tests/tool-order.spec.ts | 94 ++++ packages/core/system-prompt/tsconfig.json | 3 + packages/core/tools/README.md | 8 +- packages/core/tools/src/index.ts | 241 +++++--- packages/core/tools/src/schema.ts | 43 +- packages/core/tools/tests/scoped.spec.ts | 140 ++++- packages/core/tools/tests/tools.spec.ts | 237 +++++++- .../session-persistence-jsonl/README.md | 2 +- .../session-persistence-sqlite/README.md | 2 +- .../session-persistence/README.md | 2 +- .../session-persistence/src/coordinator.ts | 47 +- .../session-persistence/src/index.ts | 28 +- .../session-persistence/tests/contract.ts | 2 +- .../tests/coordinator-contract.ts | 7 +- .../tests/persistence.spec.ts | 15 +- packages/skill/skill/README.md | 14 +- packages/skill/skill/src/index.ts | 245 +++++++- packages/skill/skill/tests/skill.spec.ts | 502 +++++++++++++++++ .../subagent-fork/tests/subagent-fork.spec.ts | 7 +- .../subagent/subagent-inprocess/README.md | 2 +- .../subagent/subagent-inprocess/src/index.ts | 81 +-- .../subagent-inprocess/src/structured.ts | 4 +- .../tests/subagent-inprocess.spec.ts | 96 +++- packages/subagent/subagent/README.md | 8 +- packages/subagent/subagent/package.json | 2 + packages/subagent/subagent/src/index.ts | 210 +++++-- .../subagent/subagent/tests/service.spec.ts | 446 ++++++++++++++- packages/subagent/subagent/tsconfig.json | 3 + packages/support/README.md | 2 +- packages/support/invariants/README.md | 21 +- packages/support/invariants/package.json | 2 +- packages/support/invariants/src/index.ts | 73 +-- .../invariants/tests/invariants.spec.ts | 154 +++--- .../subagent-mock/tests/subagent-mock.spec.ts | 3 +- .../workflow/workflow-workerthread/README.md | 4 +- .../workflow-workerthread/package.json | 1 + .../workflow-workerthread/src/host.ts | 64 ++- .../tests/workflow-workerthread.spec.ts | 134 ++++- .../workflow-workerthread/tsconfig.json | 3 + pnpm-lock.yaml | 80 +-- 79 files changed, 3957 insertions(+), 817 deletions(-) create mode 100644 packages/core/session/tests/json.spec.ts diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 18ef659ee0..d7b7be2d88 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -343,24 +343,6 @@ export interface Config { Source: [`packages/hooks/hooks-codex/src/index.ts:43`](../packages/hooks/hooks-codex/src/index.ts) -## `@deepseek-ai/dsh-invariants` - -Requires: `sessions` - -```ts config-catalog -/** Plugin config. */ -export interface Config { - /** - * Deep-freeze logged session-event data so mutating a logged event throws. - * Default true — this plugin only runs in dev/test, where freezing is the - * point. Set false to assert the event contract without freezing. - */ - freeze?: boolean -} -``` - -Source: [`packages/support/invariants/src/index.ts:48`](../packages/support/invariants/src/index.ts) - ## `@deepseek-ai/dsh-llm-deepseek` Requires: `llm` @@ -583,7 +565,7 @@ export interface Config { } ``` -Source: [`packages/skill/skill/src/index.ts:112`](../packages/skill/skill/src/index.ts) +Source: [`packages/skill/skill/src/index.ts:114`](../packages/skill/skill/src/index.ts) ## `@deepseek-ai/dsh-skill-local` @@ -808,7 +790,7 @@ export interface Config { } ``` -Source: [`packages/core/system-prompt/src/index.ts:264`](../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:265`](../packages/core/system-prompt/src/index.ts) ## `@deepseek-ai/dsh-tool-cordis` @@ -1168,6 +1150,7 @@ These load from a `cordis.yml` entry with no `config:` block; they declare no co - `@deepseek-ai/dsh-agent` ([`packages/core/agent/src/index.ts`](../packages/core/agent/src/index.ts)) - `@deepseek-ai/dsh-fs-policy` ([`packages/fs/fs-policy/src/index.ts`](../packages/fs/fs-policy/src/index.ts)) +- `@deepseek-ai/dsh-invariants` — requires `sessions` ([`packages/support/invariants/src/index.ts`](../packages/support/invariants/src/index.ts)) - `@deepseek-ai/dsh-llm` ([`packages/llm/llm/src/index.ts`](../packages/llm/llm/src/index.ts)) - `@deepseek-ai/dsh-session` ([`packages/core/session/src/index.ts`](../packages/core/session/src/index.ts)) - `@deepseek-ai/dsh-subagent` ([`packages/subagent/subagent/src/index.ts`](../packages/subagent/subagent/src/index.ts)) diff --git a/docs/cookbook/adding-a-tool.md b/docs/cookbook/adding-a-tool.md index 5eede7ff5d..3832f44dd0 100644 --- a/docs/cookbook/adding-a-tool.md +++ b/docs/cookbook/adding-a-tool.md @@ -34,9 +34,9 @@ Registration is effect-based: disposing the plugin fiber unregisters the tool (w ## Rules of the execute() contract - **Args are validated for you.** `defineTool` validates the model-generated `arguments` against the `SchemaSpec` before `execute` runs (type, required keys, enum membership, nested objects/arrays — [runtime arg validation](../rfc/implemented/architecture/2026-06-11-runtime-arg-validation.md)), so inside `execute` the args already match `InferArgs`. You still hand-check value constraints the DSL can't express (non-empty strings, positive numbers, cross-field rules); throw a descriptive Error for those. Raw JSON-Schema tools registered directly (MCP) are NOT validated by the harness — they validate their own input. -- **Registration snapshots your definition.** Parameters must be losslessly JSON-serializable; the registry validates and clones them, copies the scalar fields, binds each callback once to your definition as its method receiver, and freezes the stored record. Reassigning `definition.execute` after registration does not hot-swap the tool—dispose and register a new definition through the owning effect instead. Deliberate mutable state inside the callback's closure or receiver remains ordinary plugin state. -- **Execution identity is protected.** The registry requires `arguments` to survive lossless-JSON validation before and after cloning, freezes the detached value before policy starts, and assigns an opaque `exec.token`; `callId`, `name`, `arguments`, `agent`, `token`, and an optional enclosing-transport `parent` token stay immutable through dispatch. `parent` is identity-only and exposes no live outer execution. Treat `args` as readonly input. An around-dispatch wrapper may add, replace, or remove only `exec.signal` to impose cancellation or a deadline. -- **Throwing or returning non-JSON data means isError.** The registry catches anything `execute()` throws and validates the complete post-policy result as losslessly JSON-serializable before final observers run. A throw, malformed result, or non-JSON content/context/meta becomes `{isError: true}` so the live outcome cannot succeed and then fail at the durable log. Use errors for infrastructure failures (bad input, spawn errors, aborts), but report domain failures in the result text instead (for example, tool-bash returns `[exit code: 9]` with `isError: false` because the model decides what a failing command means). +- **Registration snapshots your definition.** Parameters must be losslessly JSON-serializable; the registry reads them once and materializes the detached stored value in one recursive pass, copies the scalar fields, binds each callback once to your definition as its method receiver, and freezes the stored record. Reassigning `definition.execute` after registration does not hot-swap the tool—dispose and register a new definition through the owning effect instead. Deliberate mutable state inside the callback's closure or receiver remains ordinary plugin state. +- **Execution identity is protected.** The registry materializes `arguments` as detached lossless JSON in one recursive pass, freezes that value before policy starts, and assigns an opaque `exec.token`; `callId`, `name`, `arguments`, `agent`, `token`, and an optional enclosing-transport `parent` token stay immutable through dispatch. `parent` is identity-only and exposes no live outer execution. Treat `args` as readonly input. An around-dispatch wrapper may add, replace, or remove only `exec.signal` to impose cancellation or a deadline. +- **Throwing or returning non-JSON data means isError.** The registry catches anything `execute()` throws and materializes the complete post-policy result as lossless JSON before final observers run. A throw, malformed result, or non-JSON content/context/meta becomes `{isError: true}` so the live outcome cannot succeed and then fail at the durable log. Use errors for infrastructure failures (bad input, spawn errors, aborts), but report domain failures in the result text instead (for example, tool-bash returns `[exit code: 9]` with `isError: false` because the model decides what a failing command means). - **Honor `exec.signal`.** Cancel in-flight work when it fires. - **Attach durable card data with `meta` (optional).** `execute` may return `{ content, meta }` instead of a bare `ContentBlock[]` — `meta` is a JSON-serializable payload the core treats as opaque, persisted on the `tool/result` event and handed back to your `presentResult` (so a card that needs more than `args`, like `write`/`edit`'s applied-hunk diff, survives a session replay). Keep UI-only data here, never in the model-facing `content`. - **Use `exec.agent` for async notifications.** `agent.inject(content, {source: {kind: 'plugin', plugin: ''}})` appends durable context the NEXT model request sees — it is not a wake-up (an idle agent stays idle). Guard against disposed agents (try/catch). diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 0c5399b41b..f5a0533842 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -285,7 +285,7 @@ A skill provider became resolvable in the `ctx.skills` registry. Consumers can o 'skill/provider-added'(provider: SkillProvider): void ``` -Source: [`packages/skill/skill/src/index.ts:130`](../../packages/skill/skill/src/index.ts) +Source: [`packages/skill/skill/src/index.ts:132`](../../packages/skill/skill/src/index.ts) ### `skill/provider-removed` — emit @@ -295,7 +295,7 @@ A skill provider left the registry because its plugin fiber was disposed. 'skill/provider-removed'(name: string): void ``` -Source: [`packages/skill/skill/src/index.ts:136`](../../packages/skill/skill/src/index.ts) +Source: [`packages/skill/skill/src/index.ts:138`](../../packages/skill/skill/src/index.ts) ## `subagent/*` @@ -307,7 +307,7 @@ A started subagent run settled — emitted when SubagentRun.result resolves (any 'subagent/end'(this: Scoped, info: SubagentRunEndInfo): void ``` -Source: [`packages/subagent/subagent/src/index.ts:114`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:115`](../../packages/subagent/subagent/src/index.ts) ### `subagent/provider-added` — emit @@ -317,7 +317,7 @@ A provider became resolvable in the SubagentService registry. Consumers that der 'subagent/provider-added'(provider: SubagentProvider): void ``` -Source: [`packages/subagent/subagent/src/index.ts:75`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:76`](../../packages/subagent/subagent/src/index.ts) ### `subagent/provider-removed` — emit @@ -327,7 +327,7 @@ A provider left the registry (its plugin's fiber was disposed — an unload or a 'subagent/provider-removed'(name: string): void ``` -Source: [`packages/subagent/subagent/src/index.ts:86`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:87`](../../packages/subagent/subagent/src/index.ts) ### `subagent/start` — emit @@ -337,7 +337,7 @@ A subagent run started — emitted only after SubagentRun.started fulfills, when 'subagent/start'(this: Scoped, info: SubagentRunInfo): void ``` -Source: [`packages/subagent/subagent/src/index.ts:101`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:102`](../../packages/subagent/subagent/src/index.ts) ## `system-prompt/*` @@ -349,7 +349,7 @@ Waterfall around prompt assembly — mutate or extend the PromptAssembly (sectio 'system-prompt/assemble'(this: Scoped, assembly: PromptAssembly, context: AssembleContext, next: () => Promise): Promise ``` -Source: [`packages/core/system-prompt/src/index.ts:45`](../../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:46`](../../packages/core/system-prompt/src/index.ts) ### `system-prompt/change` — emit @@ -359,7 +359,7 @@ A section, tool provider, variable provider, or protection was registered or unr 'system-prompt/change'(): void ``` -Source: [`packages/core/system-prompt/src/index.ts:55`](../../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:56`](../../packages/core/system-prompt/src/index.ts) ## `tools/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index ddf2a860e4..903c368b7c 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -40,7 +40,7 @@ list(): Agent[] Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/index.ts:169`](../../packages/core/agent/src/index.ts) +Source: [`packages/core/agent/src/index.ts:174`](../../packages/core/agent/src/index.ts) ## `ctx.approval` — `ApprovalService` @@ -189,7 +189,7 @@ Contracts every implementation MUST honor (a DB backend asserts them inside a tr - **Append-only; a crashed turn is closed, not truncated.** Committed events — those at or below a flushed `turn/end` — are never rewritten. A crash can leave an unclosed final turn whose events are real (and possibly large); load preserves them and closes the orphaned turn with synthetic boundary events (see load). Only a never-fully-written torn tail fragment is discarded. - **Contiguous seq.** A persisted log is contiguous: `events[i].seq === i`. load rejects a parse error or a `seq` gap in the COMMITTED region (unloadable); append's first event `seq` MUST equal the backend's stored next-seq (after `load` has balanced any interrupted turn). -- **JSON-serializable data.** `SessionEventMap` is merge-extensible and `event.data` is typed only as `SessionEventMap[K]`, so append REJECTS non-JSON-serializable data with an error naming the offending event type. A backend snapshots (serializes/clones) each event when it buffers, since `session.events` hands out the live mutable object. +- **JSON-serializable events.** `SessionEventMap` is merge-extensible, so append materializes each complete batch through the shared lossless-JSON boundary before buffering it. The public `session.events` view is immutable, but persistence still snapshots direct/replay callers at this independent trust boundary. - **Durability.** append returns only once the batch is durable (the file backend fsyncs; a DB commits). create MAY defer the physical write until the first append (lazy materialization). ```ts cordis-catalog @@ -220,7 +220,7 @@ list(): Session[] fork(source: SessionForkSource, boundary?: number, childSessionId?: SessionId): Session ``` -Source: [`packages/core/session/src/index.ts:427`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:608`](../../packages/core/session/src/index.ts) ## `ctx.skills` — `SkillService` @@ -233,7 +233,7 @@ async list(options: SkillLookupOptions = {}): Promise async get(name: string, options: SkillLookupOptions = {}): Promise ``` -Source: [`packages/skill/skill/src/index.ts:157`](../../packages/skill/skill/src/index.ts) +Source: [`packages/skill/skill/src/index.ts:159`](../../packages/skill/skill/src/index.ts) ## `ctx.subagents` — `SubagentService` @@ -246,7 +246,7 @@ list(): string[] start(name: string, request: SubagentStartRequest): SubagentRun ``` -Source: [`packages/subagent/subagent/src/index.ts:160`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:161`](../../packages/subagent/subagent/src/index.ts) ## `ctx.systemPrompt` — `SystemPrompt` @@ -260,7 +260,7 @@ protect(protection: PromptProtection): () => Promise | void async assemble(context: AssembleContext = {}): Promise ``` -Source: [`packages/core/system-prompt/src/index.ts:379`](../../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:380`](../../packages/core/system-prompt/src/index.ts) ## `ctx.tools` — `ToolRegistry` diff --git a/docs/core-data-structures/skills.md b/docs/core-data-structures/skills.md index b356aba720..0c5bfcae13 100644 --- a/docs/core-data-structures/skills.md +++ b/docs/core-data-structures/skills.md @@ -6,7 +6,7 @@ Source: [`packages/skill/skill/src/index.ts`](../../packages/skill/skill/src/ind ## Provider registry -`ctx.skills` is a multi-provider registry. Providers can represent local directories, embedded plugin data, HTTP catalogs, or another source. Provider plugins register synchronously during `apply()`; remote initialization, authentication, and discovery are awaited by `list()`. The registry validates candidates, resolves duplicate skill names first-wins by rank/provider order/local order, and sorts the final summaries by `name` for deterministic consumers. A provider `list()` rejection is logged and skipped without caching the degraded catalog; malformed candidates still fail fast because they violate the provider contract. +`ctx.skills` is a multi-provider registry. Providers can represent local directories, embedded plugin data, HTTP catalogs, or another source. Provider plugins register synchronously during `apply()`; remote initialization, authentication, and discovery are awaited by `list()`. Each lookup snapshots its read-only options before provider work, and each provider candidate becomes registry-owned data while its opaque locator retains provider-owned identity. The registry validates candidates, resolves duplicate skill names first-wins by rank/provider order/local order, and sorts the final summaries by `name` for deterministic consumers. A provider `list()` rejection is logged and skipped without caching the degraded catalog; malformed candidates still fail fast because they violate the provider contract. ```ts type-equiv interface SkillProvider { @@ -28,7 +28,7 @@ The shipped local provider scans roots in rank order: | 400 | `user-dsh` | `/skills` | | 500 | `user-agents` | `/skills` | -The project root is the nearest ancestor containing `.git`; without one, the current cwd is used. When `ctx.fs` is available, the git-root walk probes `.git` through the filesystem service so remote or sandboxed workspaces do not fall back to the host filesystem boundary. The user DSH root skips its `.system` child, and DeepSeek Harness no longer ships built-in system skills from the local provider. Additional built-ins can be supplied later by another provider. +The project root is the nearest ancestor containing `.git`; without one, the current cwd is used. When `ctx.fs` is available, the git-root walk probes `.git` through the filesystem service so remote or sandboxed workspaces do not fall back to the host filesystem boundary. The user DSH root skips its `.system` child. The local provider does not ship built-in system skills; deployments supply built-ins through another provider. ## Skill identity @@ -92,12 +92,12 @@ type SkillRegistration = Omit & { ## Lookup and configuration -Skill lookup is cwd-sensitive because providers may expose workspace-local skills, and its optional signal cancels provider work for the caller. If no git root is found, the local provider treats the supplied cwd itself as the project root. +Skill lookup is cwd-sensitive because providers may expose workspace-local skills, and its optional signal cancels provider work for the caller. The registry captures both fields once and providers receive the same read-only snapshot used for cache identity and loading. Cancellation is checked before and after catalog selection, including cache hits, and races both discovery and full-definition loading. If no git root is found, the local provider treats the supplied cwd itself as the project root. ```ts type-equiv interface SkillLookupOptions { - cwd?: string | undefined - signal?: AbortSignal | undefined + readonly cwd?: string | undefined + readonly signal?: AbortSignal | undefined } ``` diff --git a/docs/core-data-structures/tools.md b/docs/core-data-structures/tools.md index ad741a7522..5c11f1a07c 100644 --- a/docs/core-data-structures/tools.md +++ b/docs/core-data-structures/tools.md @@ -81,7 +81,7 @@ type InferArgs = Simplify< `defineTool({ name, description, parameters, execute, … })` ties it together: `parameters` is a `SchemaSpec`, `execute(args, exec)` gets `args: InferArgs`, and the helper converts the spec to JSON Schema (`schemaSpecToJsonSchema`) for the wire and validates model-generated args (`validateArgs`) before the typed body runs. A mismatch throws `ToolArgsError` (`code: 'INVALID_ARGS'`), which the registry turns into an `isError` result so the model can self-correct. Why a custom DSL and not schemastery: tool parameters need JSON Schema (the LLM wire format), not validation/transformation — the lightweight DSL gives the best authoring DX with the smallest surface. -Registration is a value boundary. `ToolRegistry.register()` validates `ToolDefinition.parameters` as lossless JSON before and after cloning, copies the scalar fields, binds the execute/presentation callbacks once to the original definition as their method receiver, and deep-freezes the stored record. Replacing a callback property on the caller-owned definition later does not change dispatch. `get()`/`visible()` expose only that frozen snapshot, while `schemas()` produces detached projections, so the model-visible and executable views cannot drift through a leaked mutable registry object. +Registration is a value boundary. `ToolRegistry.register()` reads every top-level field once, validates fixed scalar and callback types, materializes `ToolDefinition.parameters` as detached lossless JSON in one recursive pass, binds the accepted execute/presentation callbacks once to the original definition as their method receiver, and deep-freezes the stored record. Replacing a callback property on the caller-owned definition later does not change dispatch. `get()`/`visible()` expose only that frozen snapshot, while `schemas()` produces detached projections, so the model-visible and executable views cannot drift through a leaked mutable registry object. ## Execution: extensible waterfalls plus monotonic policy @@ -118,7 +118,7 @@ interface ToolExecution extends ToolExecutionInput { } ``` -`ToolExecutionToken` is a compile-time opaque type and a frozen, property-free object at runtime; identity comparison is its only operation. Before policy runs, `ctx.tools.execute()` requires the caller's `arguments` to be losslessly JSON-serializable, checks again after cloning to contain unstable accessors, assigns a fresh token, and deep-freezes the detached arguments. A cloneable mutable exotic such as `Map` is rejected and normalized to an error before policy. `token`, `callId`, `name`, `arguments`, `agent`, and the optional `parent` token are non-writable throughout all waterfalls, so a listener cannot change which capability or scope was authorized or reach a live enclosing execution; an around-dispatch wrapper may add, replace, or remove only optional `signal`. After the complete pipeline the registry freezes the execution and exposes its stable identity to `tools/result` observers, where the execution remains usable as a `WeakMap` key without mutation races. +`ToolExecutionToken` is a compile-time opaque type and a frozen, property-free object at runtime; identity comparison is its only operation. Before policy runs, `ctx.tools.execute()` reads each caller-owned field once, materializes `arguments` as detached lossless JSON in one recursive pass, assigns a fresh token, and deep-freezes the accepted arguments. A mutable exotic such as `Map` is rejected and normalized to an error before policy; one-pass materialization prevents a stateful getter from supplying different values to validation and storage. `token`, `callId`, `name`, `arguments`, `agent`, and the optional `parent` token are non-writable throughout all waterfalls, so a listener cannot change which capability or scope was authorized or reach a live enclosing execution; an around-dispatch wrapper may add, replace, or remove only optional `signal`. After the complete pipeline the registry freezes the execution and exposes its stable identity to `tools/result` observers, where the execution remains usable as a `WeakMap` key without mutation races. A `ToolGuard` is scope-aware final pre-dispatch policy. Its shape deliberately has no allow result: `undefined` preserves the waterfall decision, while a returned reason can only reduce permission, so a later listener cannot undo it. diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 1ed2405671..5a0c547e70 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -28,14 +28,14 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `session/created` | `emit` | [`packages/core/session/src/index.ts:47`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence) | | `session/event` | `emit` | [`packages/core/session/src/index.ts:61`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence), [`stdio-agent`](../packages/ui/stdio-agent) | | `session/flush` | `parallel` | [`packages/core/session/src/index.ts:79`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | -| `skill/provider-added` | `emit` | [`packages/skill/skill/src/index.ts:130`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | -| `skill/provider-removed` | `emit` | [`packages/skill/skill/src/index.ts:136`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | -| `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:114`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | -| `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:75`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | -| `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:86`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`tool-subagent`](../packages/subagent/tool-subagent) | -| `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:101`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | -| `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:45`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | -| `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:55`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | +| `skill/provider-added` | `emit` | [`packages/skill/skill/src/index.ts:132`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | +| `skill/provider-removed` | `emit` | [`packages/skill/skill/src/index.ts:138`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | +| `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:115`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | +| `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:76`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | +| `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:87`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`tool-subagent`](../packages/subagent/tool-subagent) | +| `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:102`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | +| `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:46`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | +| `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:56`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | | `tools/change` | `emit` | [`packages/core/tools/src/index.ts:176`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | | `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:131`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`timeout-policy`](../packages/timeout/timeout-policy) | | `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:151`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | diff --git a/docs/module-graph.md b/docs/module-graph.md index 372c401954..8d0993b59a 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -120,17 +120,13 @@ flowchart TD pkg_session --> pkg_brand pkg_session --> pkg_llm pkg_session --> pkg_scope - pkg_system_prompt --> pkg_llm - pkg_system_prompt --> pkg_scope pkg_fs --> pkg_brand pkg_fs --> pkg_llm pkg_web --> pkg_llm pkg_sandbox --> pkg_llm - pkg_agent --> pkg_brand - pkg_agent --> pkg_llm - pkg_agent --> pkg_scope - pkg_agent --> pkg_session - pkg_agent --> pkg_system_prompt + pkg_system_prompt --> pkg_llm + pkg_system_prompt --> pkg_scope + pkg_system_prompt --> pkg_session pkg_bash --> pkg_brand pkg_bash --> pkg_sandbox pkg_bash --> pkg_session @@ -150,18 +146,26 @@ flowchart TD pkg_llm_replay --> pkg_session pkg_sandbox_local --> pkg_llm pkg_sandbox_local --> pkg_sandbox + pkg_agent --> pkg_brand + pkg_agent --> pkg_llm + pkg_agent --> pkg_scope + pkg_agent --> pkg_session + pkg_agent --> pkg_system_prompt pkg_bash_local --> pkg_bash pkg_bash_local --> pkg_timeout - pkg_compact_basic --> pkg_agent - pkg_compact_basic --> pkg_compact - pkg_compact_basic --> pkg_llm - pkg_compact_basic --> pkg_session pkg_hook_protocol --> pkg_bash pkg_hook_protocol --> pkg_session pkg_session_persistence_jsonl --> pkg_session pkg_session_persistence_jsonl --> pkg_session_persistence pkg_session_persistence_sqlite --> pkg_session pkg_session_persistence_sqlite --> pkg_session_persistence + pkg_bash_sandbox --> pkg_bash + pkg_bash_sandbox --> pkg_bash_local + pkg_bash_sandbox --> pkg_sandbox + pkg_compact_basic --> pkg_agent + pkg_compact_basic --> pkg_compact + pkg_compact_basic --> pkg_llm + pkg_compact_basic --> pkg_session pkg_user_approval --> pkg_agent pkg_user_approval --> pkg_brand pkg_user_approval --> pkg_llm @@ -180,9 +184,6 @@ flowchart TD pkg_tools --> pkg_session pkg_tools --> pkg_system_prompt pkg_tools --> pkg_user_approval - pkg_bash_sandbox --> pkg_bash - pkg_bash_sandbox --> pkg_bash_local - pkg_bash_sandbox --> pkg_sandbox pkg_agent_loop --> pkg_agent pkg_agent_loop --> pkg_llm pkg_agent_loop --> pkg_scope @@ -209,6 +210,7 @@ flowchart TD pkg_subagent --> pkg_agent pkg_subagent --> pkg_llm pkg_subagent --> pkg_scope + pkg_subagent --> pkg_session pkg_subagent --> pkg_tools pkg_tool_web --> pkg_llm pkg_tool_web --> pkg_system_prompt @@ -289,6 +291,7 @@ flowchart TD pkg_workflow_workerthread --> pkg_agent pkg_workflow_workerthread --> pkg_brand pkg_workflow_workerthread --> pkg_llm + pkg_workflow_workerthread --> pkg_session pkg_workflow_workerthread --> pkg_subagent pkg_workflow_workerthread --> pkg_tools pkg_workflow_workerthread --> pkg_workflow @@ -330,11 +333,10 @@ flowchart TD | [`llm-deepseek`](../packages/llm/llm-deepseek) | `llm` | [`llm`](../packages/llm/llm) | | [`llm-pi-ai`](../packages/llm/llm-pi-ai) | `llm` | [`llm`](../packages/llm/llm) | | [`session`](../packages/core/session) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope) | -| [`system-prompt`](../packages/core/system-prompt) | `core` | [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope) | | [`fs`](../packages/fs/fs) | `fs` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | | [`web`](../packages/web/web) | `web` | [`llm`](../packages/llm/llm) | | [`sandbox`](../packages/sandbox/sandbox) | `sandbox` | [`llm`](../packages/llm/llm) | -| [`agent`](../packages/core/agent) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | +| [`system-prompt`](../packages/core/system-prompt) | `core` | [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session) | | [`bash`](../packages/bash/bash) | `bash` | [`brand`](../packages/util/brand), [`sandbox`](../packages/sandbox/sandbox), [`session`](../packages/core/session) | | [`fs-local`](../packages/fs/fs-local) | `fs` | [`fs`](../packages/fs/fs) | | [`fs-policy`](../packages/fs/fs-policy) | `fs` | [`fs`](../packages/fs/fs) | @@ -347,21 +349,22 @@ flowchart TD | [`session-persistence`](../packages/session-persistence/session-persistence) | `session-persistence` | [`session`](../packages/core/session) | | [`llm-replay`](../packages/support/llm-replay) | `support` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`sandbox-local`](../packages/sandbox/sandbox-local) | `sandbox` | [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox) | +| [`agent`](../packages/core/agent) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`bash-local`](../packages/bash/bash-local) | `bash` | [`bash`](../packages/bash/bash), [`timeout`](../packages/util/timeout) | -| [`compact-basic`](../packages/compact/compact-basic) | `compact` | [`agent`](../packages/core/agent), [`compact`](../packages/compact/compact), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`hook-protocol`](../packages/hooks/hook-protocol) | `hooks` | [`bash`](../packages/bash/bash), [`session`](../packages/core/session) | | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | +| [`bash-sandbox`](../packages/bash/bash-sandbox) | `bash` | [`bash`](../packages/bash/bash), [`bash-local`](../packages/bash/bash-local), [`sandbox`](../packages/sandbox/sandbox) | +| [`compact-basic`](../packages/compact/compact-basic) | `compact` | [`agent`](../packages/core/agent), [`compact`](../packages/compact/compact), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`user-approval`](../packages/ui/user-approval) | `ui` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`user-interaction`](../packages/ui/user-interaction) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm) | | [`workflow`](../packages/workflow/workflow) | `workflow` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | | [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`code-runtime`](../packages/code-runtime/code-runtime), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`user-approval`](../packages/ui/user-approval) | -| [`bash-sandbox`](../packages/bash/bash-sandbox) | `bash` | [`bash`](../packages/bash/bash), [`bash-local`](../packages/bash/bash-local), [`sandbox`](../packages/sandbox/sandbox) | | [`agent-loop`](../packages/core/agent-loop) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`user-approval`](../packages/ui/user-approval) | | [`tool-fs`](../packages/fs/tool-fs) | `fs` | [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-skill`](../packages/skill/tool-skill) | `skill` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`skill`](../packages/skill/skill), [`tools`](../packages/core/tools) | -| [`subagent`](../packages/subagent/subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`tools`](../packages/core/tools) | +| [`subagent`](../packages/subagent/subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`tool-web`](../packages/web/tool-web) | `web` | [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`web`](../packages/web/web) | | [`timeout-policy`](../packages/timeout/timeout-policy) | `timeout` | [`llm`](../packages/llm/llm), [`timeout`](../packages/util/timeout), [`tools`](../packages/core/tools) | | [`tool-todo`](../packages/todo/tool-todo) | `todo` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | @@ -378,7 +381,7 @@ flowchart TD | [`tool-subagent`](../packages/subagent/tool-subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent), [`tools`](../packages/core/tools) | | [`hooks-claude`](../packages/hooks/hooks-claude) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`tools`](../packages/core/tools) | | [`subagent-mock`](../packages/support/subagent-mock) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent) | -| [`workflow-workerthread`](../packages/workflow/workflow-workerthread) | `workflow` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`subagent`](../packages/subagent/subagent), [`tools`](../packages/core/tools), [`workflow`](../packages/workflow/workflow) | +| [`workflow-workerthread`](../packages/workflow/workflow-workerthread) | `workflow` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`tools`](../packages/core/tools), [`workflow`](../packages/workflow/workflow) | | [`subagent-fork`](../packages/subagent/subagent-fork) | `subagent` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | [`subagent-spawn`](../packages/subagent/subagent-spawn) | `subagent` | [`subagent`](../packages/subagent/subagent), [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | [`acp-agent`](../packages/ui/acp-agent) | `ui` | [`acp`](../packages/ui/acp), [`agent-core`](../packages/core/agent-core), [`app-boot`](../packages/ui/app-boot), [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | diff --git a/docs/persistence-catalog.md b/docs/persistence-catalog.md index 4bbe894338..cb0e8ce0dc 100644 --- a/docs/persistence-catalog.md +++ b/docs/persistence-catalog.md @@ -57,7 +57,7 @@ Raw stream chunk — token-level replay fidelity. Types: [StreamChunk](core-data-structures/llm-streaming.md) -Source: [`packages/core/session/src/types.ts:313`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:317`](../packages/core/session/src/types.ts) #### `assistant/message` — surface @@ -69,7 +69,7 @@ Assembled assistant message for one step (derived history uses this). Carries th Types: [ContentBlock](core-data-structures/core.md) · [TokenUsage](core-data-structures/llm-streaming.md) -Source: [`packages/core/session/src/types.ts:320`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:324`](../packages/core/session/src/types.ts) ### `bash/*` @@ -129,7 +129,7 @@ In-session context injection (file-change notices, subdir AGENTS.md, skill conte Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:311`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:315`](../packages/core/session/src/types.ts) ### `hook/*` @@ -165,7 +165,7 @@ A queued prompt an `agent/prompt-submit` listener VETOED — the durable record Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:305`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:309`](../packages/core/session/src/types.ts) ### `request/*` @@ -177,7 +177,7 @@ Full snapshot of the EpochHeader the NEXT request is built under, with the Reque 'request/header': { header: EpochHeader; reason: RequestHeaderReason } ``` -Source: [`packages/core/session/src/types.ts:365`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:369`](../packages/core/session/src/types.ts) #### `request/header-delta` — log-only @@ -187,7 +187,7 @@ Amendment to the folded EpochHeader: at least one of a SystemDelta, a ToolsDelta 'request/header-delta': { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig; messagePrefix?: Message[] } ``` -Source: [`packages/core/session/src/types.ts:382`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:386`](../packages/core/session/src/types.ts) ### `steering/*` @@ -201,7 +201,7 @@ Steering content injected between steps of a running turn. Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:338`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:342`](../packages/core/session/src/types.ts) ### `step/*` @@ -213,7 +213,7 @@ Closes step `step` of turn `turn`. 'step/end': { turn: number; step: number } ``` -Source: [`packages/core/session/src/types.ts:292`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:296`](../packages/core/session/src/types.ts) #### `step/start` — log-only @@ -223,7 +223,7 @@ Opens step `step` of turn `turn` — one model call plus the tool executions it 'step/start': { turn: number; step: number } ``` -Source: [`packages/core/session/src/types.ts:290`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:294`](../packages/core/session/src/types.ts) ### `todo/*` @@ -239,7 +239,7 @@ NOT a SurfaceEventType: it produces no LLM message and never reaches `deriveMess Types: [TodoItem](core-data-structures/session.md) -Source: [`packages/core/session/src/types.ts:352`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:356`](../packages/core/session/src/types.ts) ### `tool/*` @@ -253,7 +253,7 @@ The model requested one tool invocation: `name` with the raw `arguments` JSON st Types: [CallId](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:326`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:330`](../packages/core/session/src/types.ts) #### `tool/code-dispatch` — log-only @@ -277,7 +277,7 @@ A completed tool call's model-facing result, plus an optional tool-private `meta Types: [CallId](core-data-structures/core.md) · [ContentBlock](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:336`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:340`](../packages/core/session/src/types.ts) ### `turn/*` @@ -291,7 +291,7 @@ Closes turn `turn` with the TurnEndReason that ended it. The loop fires the awai Types: [TurnEndReason](core-data-structures/session.md) -Source: [`packages/core/session/src/types.ts:288`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:292`](../packages/core/session/src/types.ts) #### `turn/start` — log-only @@ -303,7 +303,7 @@ Opens turn `turn`. `trigger` records what started it — a drained message batch Types: [TurnTrigger](core-data-structures/session.md) -Source: [`packages/core/session/src/types.ts:282`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:286`](../packages/core/session/src/types.ts) ### `user/*` @@ -317,4 +317,4 @@ A user-visible prompt (queued message drained at turn start). Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:294`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:298`](../packages/core/session/src/types.ts) diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index 654b68ffb5..454997ef1f 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -101,7 +101,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; |---|---| | [Provider-neutral content-block vocabulary owned by dsh-llm](implemented/architecture/2026-06-11-content-block-vocabulary.md) | 2026-06-11 | | [Custom typed tool-schema DSL instead of schemastery](implemented/architecture/2026-06-11-custom-schema-dsl.md) | 2026-06-11 | -| [Dev-mode invariants over compile-time deep-readonly](implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md) | 2026-06-11 | +| [Source-owned session immutability and dev-mode invariants](implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md) | 2026-06-11 | | [Event-sourced sessions with derived message history](implemented/architecture/2026-06-11-event-sourced-sessions.md) | 2026-06-11 | | [Microkernel — extension via Cordis event taxonomy, one concrete loop](implemented/architecture/2026-06-11-microkernel-event-taxonomy.md) | 2026-06-11 | | [Runtime arg validation at the model boundary](implemented/architecture/2026-06-11-runtime-arg-validation.md) | 2026-06-11 | diff --git a/docs/rfc/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md b/docs/rfc/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md index a3240153d0..aac3991f46 100644 --- a/docs/rfc/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md +++ b/docs/rfc/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md @@ -1,29 +1,58 @@ -# RFC: Dev-mode invariants over compile-time deep-readonly +# RFC: Source-owned session immutability and dev-mode invariants Status: implemented ## Problem -The session log is append-only by contract, but the types don't enforce it: `session.events` returns `readonly SessionEvent[]` whose *elements* are mutable, and `deriveMessages()` handed the logged `content` arrays/blocks out by reference. The loop then passes those derived messages into the `agent/request` waterfall and on to adapters, where mutating the request is sanctioned — so a request middleware could reach back and rewrite history, silently breaking replay equivalence and the derived-history guarantee. Separately, the event taxonomy (turn/step nesting, seq monotonicity, tool-call/result pairing, legal status transitions) was asserted only where individual tests happened to look. +The session log needs two different protections: immutable ownership of each stored fact, and checks for relationships among facts across time and service seams. Conflating them in an optional development plugin would leave production history vulnerable; trying to express both through TypeScript readonly types would not create a runtime boundary or describe relational rules. -Two ways to defend the log: make immutability part of the type (`DeepReadonly` on the way out), or catch corruption at runtime in dev. The runtime-validation proposal took the runtime route; [the deep-readonly proposal](../../rejected/architecture/2026-06-11-immutable-public-surfaces.md) took the type route. +The session log is the durable source of truth for replay, request reconstruction, persistence, and user-visible history. Code outside the session package must be able to inspect that history without retaining a reference that can rewrite it later, and inputs accepted from callers must not remain connected to caller-owned mutable objects. + +Immutability of individual values is only half of the contract. A log can contain perfectly immutable records whose sequence, turn/step nesting, tool-call pairing, scoped delivery, or reconstructed model request is wrong. Those rules relate multiple records or services and cannot be established by freezing one object. + +TypeScript readonly types are not a sufficient runtime boundary. They disappear when the program runs, a cast can bypass them, and a recursive `DeepReadonly` would spread through every log and message consumer even though some downstream request-processing APIs intentionally work with mutable values. ## Decision -Reject the pervasive `DeepReadonly` type flip. Instead: +Responsibility is split between an always-on storage boundary and optional development assertions. -1. **Always-on:** `deriveMessages()` deep-clones the content it emits (one `structuredClone` per derived message). In-flight mutation of a request can no longer reach the log — this is the real fix, and it costs nothing meaningful next to a model call. -2. **Dev-mode:** a new `dsh-invariants` plugin (pure listeners, off in production, on in tests and demos) asserts the event contract and `Object.freeze`s logged event data so any *other* code that mutates a logged event throws instead of corrupting silently. Seeded sessions are frozen and checked on `session/created` (the constructor copies the seed without emitting `session/event`). +### Session owns immutable history -The invariants encode the *real* contract, not an idealized one: a `tool/call` may have no `tool/result` (a thrown tool-execution pipeline step ends the turn), and both `idle→disposed` and `running→disposed` are legal. +`Session` accepts an event only after one recursive pass has materialized a lossless JSON snapshot. That pass rejects unsupported values and produces the exact detached record that enters the log, so validation and storage cannot observe different values from a stateful getter or retain caller-owned nested references. + +The accepted event and all of its descendants are deep-frozen before publication. `append()` returns that owned frozen event, `session/event` observers receive the same record, and `session.events` returns a frozen array snapshot. A previously returned array does not grow after a later append. Seed records pass through the same validation, snapshot, and freeze boundary before construction succeeds. + +This guarantee belongs in `Session`, not in an optional listener, because every composition relies on trustworthy history. A production deployment, a focused test, or a custom embedding receives the same storage semantics whether or not development support plugins are registered. + +### Derived requests remain detached + +`deriveMessages()` projects logged surface events into detached, deep-frozen `Message` objects and returns a fresh array snapshot. Request assembly can therefore combine derived history with other inputs without exposing a path back into the log. The cache reuses safe immutable projections rather than recloning the complete history for each model call. + +### The invariants plugin checks relationships + +`dsh-invariants` is a pure-listener development plugin. It does not freeze records and has no configuration; disposal removes only its assertions. It checks rules that require trace state or observation of another seam, including monotonic sequence numbers, turn and step nesting, tool-call/result pairing, legal agent-status transitions, subject-correct scoped dispatch, and equality between a loop-built request and the request reconstructed from its session-log prefix. + +When the plugin attaches to an existing or seeded session, it replays the immutable log to rebuild trace state. This makes hot reload safe in the middle of a turn without giving the plugin ownership of session storage. ## Alternatives considered -**The pervasive `DeepReadonly` type flip** ([the rejected proposal](../../rejected/architecture/2026-06-11-immutable-public-surfaces.md)) — compile-time only (a plugin casts straight through it), high type-noise across every log/message consumer and adapter, and it would force readonly types through code where mutation is the sanctioned API. The clone draws the mutable/immutable boundary exactly at "logged vs in-flight" without any of that noise. +### Pervasive deep-readonly types + +[The rejected immutable-public-surfaces proposal](../../rejected/architecture/2026-06-11-immutable-public-surfaces.md) would apply a recursive readonly type across public log and message surfaces. That provides editor feedback but not a runtime guarantee: TypeScript types are erased and plugin code can cast through them. It also pushes readonly types into consumers where mutation is intentional. Runtime ownership at the `Session` boundary protects every caller without that type propagation. + +### Development-only freezing + +Freezing history only when an invariants plugin is installed would make the core guarantee composition-dependent. Code could pass development tests and still corrupt history in production or in a focused composition that omits the plugin. Storage immutability is therefore always on, while the more expensive relational checks remain opt-in development support. + +### Clone only when deriving messages + +Detaching `deriveMessages()` would protect the most common request path but leave other readers of `session.events`, append return values, and session-event observers able to mutate durable history. The log must protect its own boundary; derived projections are an additional isolation boundary, not a substitute. ## Consequences -- History corruption is caught loudly in tests and demos, at zero production cost and zero type noise. The trade-off is that the guarantee is dynamic (a dev-mode tripwire) rather than static. -- The invariants plugin doubles as executable documentation of the event taxonomy — the assertions are the contract. -- `Session.events` keeps its `readonly SessionEvent[]` type; no consumer churn. -- This folds in [the deep-readonly proposal](../../rejected/architecture/2026-06-11-immutable-public-surfaces.md) — there is no separate deep-readonly record; this records the decision to *not* pursue that approach. `InvariantError` is a plain `Error` with a `code` for now; a later taxonomy change can promote it. +- Every accepted live or seeded session event is detached from caller-owned inputs and deeply immutable before any observer can receive it. +- `session.events` exposes stable immutable snapshots instead of the private growing array. +- Request-side mutation cannot reach stored history through derived messages. +- Development builds can enable relational assertions without changing storage behavior, and disposing or omitting the plugin does not weaken log immutability. +- `dsh-invariants` has no `Config` surface because it has no behavior to tune. +- The runtime boundary carries a recursive snapshot-and-freeze cost once per accepted event; later readers and cached projections reuse the owned immutable records. diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index 9091965a59..981603cb19 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -149,18 +149,23 @@ Calling a service through `agent.ctx` does not implicitly make every later read The tool view must not change because a caller kept the object it passed to `register()` or received a definition from `get()` or `visible()`. Registration therefore creates the stored identity once; future changes happen through explicit unregister/register effects. -Tool parameters cross the model and log boundary, so the registry requires them to be lossless JSON before cloning and validates the clone again to contain unstable getters. It snapshots the scalar fields, binds each callback once to the original definition as its method receiver, and deep-freezes the stored record. Replacing `definition.execute` after registration therefore has no effect, while a callback can still deliberately read mutable state from its closure or original receiver. `get()` and `visible()` return the frozen stored definitions; `schemas()` returns detached schema projections. +Tool parameters cross the model and log boundary, so the registry materializes them with `snapshotJsonValue`: one recursive traversal reads each property once, rejects anything outside lossless JSON, and constructs the detached value that is actually stored. A check followed by `structuredClone` is not equivalent—a getter could return plain JSON to the check and a class instance to the clone, which would erase its prototype and silently accept different data. The first-party `defineTool()` helper closes the earlier authoring boundary with the same primitive: it reads every top-level option once, materializes the `SchemaSpec`, and derives an independent wire schema plus all later execute/presentation validation from that accepted snapshot. Without that split, mutating an author-owned spec after definition could make the model call a schema that the tool no longer accepts. Registration then reads every top-level definition field exactly once, validates, binds, and stores only those captured values; a stateful `parameters` or callback accessor therefore cannot make the checked definition differ from the executable one. It snapshots the scalar fields, binds each callback once to the original definition as its method receiver, and deep-freezes the stored record. Replacing `definition.execute` after registration therefore has no effect, while a callback can still deliberately read mutable state from its closure or original receiver. `get()` and `visible()` return the frozen stored definitions; `schemas()` returns detached schema projections. ```text +defineTool(options): + accepted = read each top-level option exactly once + parameterSpec = snapshotLosslessJson(accepted.parameters) + wireParameters = snapshotLosslessJson(convertToJsonSchema(parameterSpec)) + build execute and presentation validators over parameterSpec + registerTool(context, definition): - require definition.parameters is lossless JSON - parameters = clone(definition.parameters) - require parameters is still lossless JSON + accepted = read each top-level definition field exactly once + parameters = snapshotLosslessJson(accepted.parameters) stored = deepFreeze({ - copied name, description, timeout, + accepted name, description, timeout, parameters, - execute: bind definition.execute to definition, + execute: bind accepted.execute to definition, presentation callbacks: bind once when present }) @@ -173,7 +178,7 @@ The reserved Code Mode transport uses the same frozen-definition contract even t A tool restriction masks the global end-capability layer for one agent, while tools registered in that agent's own layer are explicit grants. Multiple restrictions intersect, so separately installed policies can only reduce the global surface. -The restriction snapshots its input, rejects an empty filter, and validates named tools against the pre-restriction capability universe. A restricted-away tool behaves like an unknown tool at execution, avoiding disclosure of a hidden global implementation. +The restriction reads `allow` and `deny` once, snapshots those exact values, rejects an empty filter, and validates named tools against the pre-restriction capability universe. The same captured arrays are then enforced, so a stateful accessor cannot pass one policy through validation and install another. A restricted-away tool behaves like an unknown tool at execution, avoiding disclosure of a hidden global implementation. [Code Mode](../feature/2026-06-15-code-mode.md)'s `run_code` is not an end capability. It is a reserved presentation transport that carries calls to the visible end capabilities, so the registry keeps it outside both global and scoped registration layers: restrictions cannot remove it, a scoped tool cannot shadow it, and configuration cannot explicitly allow or deny it. Without this exception, a restriction could leave the generated SDK in the prompt but remove the only way to invoke it. @@ -241,7 +246,9 @@ An agent's scope, session, registry entry, and driver form one owned transaction Programmatic create and resume reserve both the agent ID and session ID before work that can await. Create prepares a fresh or seeded session; resume first loads and reconstructs the persisted session. Both paths then construct the agent, mint `agent.ctx`, and install the complete teardown skeleton before awaiting setup. -The factory captures IDs and the setup callback and clones caller-owned agent options, session metadata, and seed events before the first asynchronous boundary. Resume does the same before persistence loading. A caller mutating its options object later therefore cannot move the transaction away from the identities it reserved or change the configuration eventually published. +The factory captures IDs and the setup callback and clones caller-owned agent options before the first asynchronous boundary. Seed events and session metadata take a stricter route: pre-cloning either could erase a class or exotic prototype before the session validator saw it, so the factory reads each reference once and hands it synchronously to `SessionStore.prepare`. That boundary rejects exotic shells, reads each accepted metadata field once, and recursively validates and copies every seed value in one pass. One-pass materialization matters because `validate(value); structuredClone(value); validate(clone)` still reads a getter twice, and the clone can erase the prototype of a class instance returned only on the second read. The accepted metadata becomes a detached, deep-frozen `SessionHeader` whose id must equal the session id. Resume applies the same rule after persistence loading by capturing `createdAt`, `cwd`, `parentSession`, and `seedLength` once before reconstruction. A caller or stateful backend therefore cannot move the transaction away from the identities it reserved, change persistence routing or lineage after publication, or sanitize invalid data into acceptance. + +The session log also closes the ownership boundary after acceptance. Seed and append paths share exact runtime surface-metadata checks: surface events require either `'append'` or an exact replace record with non-negative safe-integer bounds, provenance is an array of non-negative safe integers, and non-surface events reject both fields. Accepted events are deep-frozen, and `session.events` returns a cached frozen array snapshot rather than the mutable internal array. A later append invalidates the cache and publishes a new snapshot; any earlier snapshot remains unchanged. This preserves append-only behavior even for JavaScript callers that cast away TypeScript's readonly view or retain an event reference received from `append` or `session/event`. Reservations prevent two concurrent transactions from composing different unpublished agents under the same public identity. They remain held across persistence loading and setup and are released on every success or failure path. @@ -356,9 +363,9 @@ Cooperative waterfalls remain the general extension mechanism, but an invariant ### Prompt protection restores named canonical contributions -`systemPrompt.protect({ sections, tools })` declares that selected names must match the canonical registry/provider assembly after the complete `system-prompt/assemble` waterfall. Protections registered globally and for the current scope compose by set union, so callback order cannot weaken them. Protection finalizes a returned assembly rather than recovering from listener failure; if the waterfall throws, assembly still fails. +`systemPrompt.protect({ sections, tools })` declares that selected names must match the canonical registry/provider assembly after the complete `system-prompt/assemble` waterfall. It reads each caller array once before deduplication, so the names checked for an empty protection are the names actually installed. Protections registered globally and for the current scope compose by set union, so callback order cannot weaken them. Protection finalizes a returned assembly rather than recovering from listener failure; if the waterfall throws, assembly still fails. -For each protected name, the service restores the canonical presence and definition. If the canonical assembly omitted the name, protection removes a listener-fabricated entry; this makes mode-dependent absence enforceable as well as presence. +For each protected name, the service restores the canonical presence and definition. If the canonical assembly omitted the name, protection removes a listener-fabricated entry; this makes mode-dependent absence enforceable as well as presence. Tool providers receive the same coherence treatment: assembly reads `schemas`, optional `knownNames`, and every schema field once, detaches that record, and uses its captured names for both `toolOrder` validation and the model-visible collection. A stateful provider therefore cannot validate a phantom name while showing a different tool. A global section protection also reserves the registry name against scoped shadowing. Registering a scoped section under an already protected global name throws, and adding global protection throws if any scoped shadow already exists. Section registration copies `name`, `order`, and the text value or callback before the check and stores that record, so later mutation of the caller's object cannot rename a safe section into a reserved one. This check must happen before assembly: otherwise the ordinary scoped-over-global merge would make the shadow itself look canonical, leaving post-waterfall restoration with the wrong owner's value. Tool-schema protection does not impose a blanket schema-name reservation because providers are additive and may deliberately contribute unrelated executable schemas. @@ -392,7 +399,7 @@ Code Mode uses global protection for the `tools:sdk` section and reserved `run_c ### Tool executions have stable identity -`ctx.tools.execute(input)` accepts a caller-owned `ToolExecutionInput` and snapshots it into a distinct pipeline-owned `ToolExecution`. The registry requires `arguments` to be losslessly JSON-serializable, validates before cloning and again after cloning to contain unstable accessors, then deep-freezes the detached value. A cloneable but mutable exotic such as `Map` is rejected before policy rather than smuggled through an apparently frozen wrapper. Invalid input still produces one normalized final error notification. +`ctx.tools.execute(input)` accepts a caller-owned `ToolExecutionInput` and snapshots it into a distinct pipeline-owned `ToolExecution`. It captures the required `callId`/`name` correlation identity, then reads every other top-level caller field once before using it, so parent-token validation, scope routing, policy, dispatch, and final observation all see one coherent identity; those captured optional fields construct the normalized error shell if a later accessor or argument validation fails. The registry materializes `arguments` in one lossless-JSON traversal and deep-freezes the result, so policy and dispatch receive exactly the value that passed validation. A cloneable but mutable exotic such as `Map` or a class instance is rejected before policy rather than smuggled through an apparently frozen wrapper. Invalid input still produces one normalized final error notification; a throwing `callId` or `name` accessor is outside that guarantee because no trustworthy result correlation exists. The registry assigns each pipeline trip a frozen, property-free `ToolExecutionToken`; callers cannot choose that token. The execution's `token`, `callId`, `name`, `agent`, optional opaque `parent` token, and detached `arguments` are non-writable and non-configurable from the first policy listener onward. `signal` is the only operational field: an around-dispatch wrapper may add, replace, or remove it, and the registry freezes the complete execution before outcome observation. @@ -404,19 +411,18 @@ The input-to-execution conversion is intentionally one-way: ```text prepareExecution(input): - require input.parent is absent or a registry-minted token - require input.arguments is lossless JSON - detachedArguments = clone(input.arguments) - require detachedArguments is still lossless JSON + accepted = read callId, name, arguments, agent, parent, signal exactly once + require accepted.parent is absent or a registry-minted token + detachedArguments = snapshotLosslessJson(accepted.arguments) execution = { token: new frozen property-free object, - callId: input.callId, - name: input.name, + callId: accepted.callId, + name: accepted.name, arguments: deepFreeze(detachedArguments), - agent: input.agent, - parent: input.parent, - signal: input.signal + agent: accepted.agent, + parent: accepted.parent, + signal: accepted.signal } make every field except signal non-writable and non-configurable @@ -431,7 +437,7 @@ This one-way result makes the boundary monotonic. Pre-execution hooks can still ### `tools/result` observes the authoritative live outcome -The complete live pipeline is `tools/pre-execute` → monotonic guards → `tools/execute` → `tools/post-execute` → `tools/result`. The first three named events are transformable waterfalls; `tools/result` is an awaited, observe-only notification after all transforms and the registry's outer error normalization. Immediately before that boundary, the registry validates that the entire authoritative result can round-trip losslessly through JSON; an invalid tool or listener result becomes a normal JSON-safe `isError` outcome instead of reaching observers as apparent success and failing later at the session log. +The complete live pipeline is `tools/pre-execute` → monotonic guards → `tools/execute` → `tools/post-execute` → `tools/result`. The first three named events are transformable waterfalls; `tools/result` is an awaited, observe-only notification after all transforms and the registry's outer error normalization. At each untrusted result boundary, the registry captures every top-level field once and materializes the complete authoritative outcome as detached lossless JSON. Immediately before observation it materializes that owned outcome again and deep-freezes the shared listener snapshot. An invalid tool or listener result becomes a normal JSON-safe `isError` outcome instead of reaching observers as apparent success and failing later at the session log. Every `tools/result` listener receives the same frozen execution and deep-frozen result snapshot. Listener failures are contained independently, so they cannot change the caller's result or starve peer observers. Scope filtering derives from `execution.agent`. @@ -468,12 +474,12 @@ execute(input): result = requireValidExecutionResult(result) result = await tools/post-execute(execution, result) - result = requireLosslessJson(result) + result = snapshotLosslessJson(result) catch pipelineFailure: result = errorResult(pipelineFailure) freeze(execution) - frozenResult = deepFreeze(clone(result)) + frozenResult = deepFreeze(snapshotLosslessJson(result)) await every tools/result observer independently, containing each failure return result ``` @@ -520,11 +526,11 @@ In-process subagents demonstrate how the scope, lifecycle, and final-policy piec Provider registration first freezes an acceptance snapshot of the provider name, capability flags, parent-context descriptor, and `start` callback; the callback is bound to the original provider receiver so its intentional internal state stays live. Lookup, validation, model-facing wording, dispatch, lifecycle notifications, and HMR cleanup all use that snapshot. Mutating or reusing the caller's provider object later therefore cannot rename a live entry, change its advertised powers, replace its callback, or make its disposer delete the wrong key. -Starting a run snapshots every accepted field before asynchronous owner setup. The parent and abort signal are retained as identity capabilities but never reread from the mutable request record; tool filters, seed events, agent options, output schema, and prompt are detached. The schema is validated before cloning, while the prompt must pass the same lossless-JSON check before and after cloning that the session log requires. Later caller mutation therefore cannot change lifecycle scope, configuration, the schema enforced by the capture tool, or the prompt eventually logged and sent. +Starting a run reads every top-level request field once before capability validation, then snapshots every accepted field before asynchronous owner setup. This order makes checked and delegated capabilities identical even for a JavaScript caller with stateful accessors. Fixed scalars are checked at the same boundary: `maxDepth` must be a non-negative safe integer and `persona` must be a string. The parent and abort signal are retained as identity capabilities but never reread from the mutable request record; tool filters, seed events, agent options, output schema, and prompt are detached through the one-pass lossless-JSON materializer. The exported in-process driver repeats this boundary for direct callers before it awaits run-owner activation, including taking one seed snapshot from which it derives both the child prefix and `seedLength`. Later caller mutation therefore cannot change lifecycle scope, configuration, the schema enforced by the capture tool, or the prompt eventually logged and sent. The driver first installs provider ownership. Only after that succeeds does it attach the request's abort listener and create one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves neither a child nor an orphaned listener. The child factory runs through the owner fiber. Parent teardown, provider teardown, and manual run disposal all dispose this same node; moving it out of the active state synchronously prevents an unpublished setup from publishing afterward, while all three paths follow one quiescence promise. This structured ownership does not change the child's flat capability view. -The returned run separates acceptance from publication with `started: Promise`. For spawn and fork, it fulfills only after the child factory returns a published handle, so the service can emit `subagent/start` with `ctx.agents.get(run.id)` already live; it rejects when rollback prevents publication. The service observes `result` immediately but buffers its cloned end payload until readiness, preserving start-before-end order without leaving an early rejection unhandled. A readiness rejection emits neither lifecycle event. The result driver awaits the same boundary before sending the child prompt. +The provider's run separates acceptance from publication with `started: Promise`, but the service does not return that caller-owned handle directly. It reads `id`, `started`, `result`, and every method once, binds methods to the original provider receiver, and returns a frozen service-owned wrapper. Its `result` promise captures `output`, optional `structured`, and `stopReason` once and resolves to one detached, deeply frozen lossless-JSON value shared by the caller and lifecycle telemetry; malformed provider data rejects as an infrastructure fault and produces contained `error` telemetry. For spawn and fork, the accepted `started` promise fulfills only after the child factory returns a published handle, so the service can emit `subagent/start` with `ctx.agents.get(id)` already live; it rejects when rollback prevents publication. The service observes the normalized result immediately but buffers its end payload until readiness, preserving start-before-end order without leaving an early rejection unhandled. Both lifecycle payloads are deeply frozen before contained per-listener dispatch, so one observer cannot corrupt the caller or a peer. A readiness rejection emits neither lifecycle event. The result driver awaits the same boundary before sending the child prompt. ```text startInProcessRun(providerContext, acceptedRequest): @@ -540,7 +546,7 @@ startInProcessRun(providerContext, acceptedRequest): creation = runOwner.ctx.agents.create({ fresh ids and lineage, - cloned options and optional seed, + detached options and optional seed, setup(childCtx) => install persona, tool restriction, structured runtime }) @@ -550,9 +556,16 @@ startInProcessRun(providerContext, acceptedRequest): send the child prompt, await idle, derive the terminal result SubagentService.start(...): - attach result settlement handlers immediately - await returnedRun.started + providerRun = provider.start(detached request) + serviceRun = freeze({ + id, started, and methods captured once from providerRun, + methods bound to providerRun, + result: normalize once into detached, deeply frozen lossless JSON + }) + attach settlement handlers to serviceRun.result immediately + await serviceRun.started emit subagent/start; later emit the buffered or eventual subagent/end + return serviceRun Workflow worker bridge after receiving returnedRun: register the run so cancellation can reach pre-publication work @@ -561,9 +574,14 @@ Workflow worker bridge after receiving returnedRun: send ChildStarted; then send the buffered or eventual outcome else: send ChildStartError and dispose the attempt + +Before publishing the workflow's own result: + abort the shared child-request signal + call cancel("workflow settled") on every host-registered run + only then settle the workflow result ``` -Every downstream protocol that announces a subagent must honor the same boundary. The workflow worker bridge therefore registers the returned run before waiting, observes and snapshots `result` immediately, sends `ChildStarted` only after `started` fulfills, and sends `ChildStartError` plus host-driven disposal when readiness rejects. This keeps cancellation able to reach pending creation, prevents an early result rejection from going unhandled, and ensures `workflow/agent-start` never names an unpublished child. +Every downstream protocol that announces a subagent must honor the same boundary. The workflow worker bridge therefore registers the returned run before waiting, observes and snapshots `result` immediately, sends `ChildStarted` only after `started` fulfills, and sends `ChildStartError` plus host-driven disposal when readiness rejects. Before the workflow result becomes observable, the host also drives both permitted cancellation channels—the shared abort signal and each registered run's explicit `cancel()`—because a fire-and-forget child still waiting on readiness has no worker-side handle that could relay cancellation. Provider cancel callbacks are contained independently so one broken implementation cannot prevent peers from receiving cancellation or wedge the workflow result. This keeps cancellation able to reach pending creation, prevents an early result rejection from going unhandled, ensures `workflow/agent-start` never names an unpublished child, and prevents a child from publishing after its workflow has ended. Parent teardown reaches `runOwner` by nesting; the provider and returned run handle reach the same node through their explicit disposers. diff --git a/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md b/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md index 474abd2c67..f26aa501ef 100644 --- a/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md +++ b/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md @@ -46,7 +46,7 @@ A provider exposes `start(request) → SubagentRun`. The run carries `started` ( ### Fork vs. fresh are separate backends, not a flag -Rather than a `context: 'fresh' | 'fork'` request field, the distinction is the provider's identity: `dsh-subagent-spawn` (fresh, isolated, own system prompt) and `dsh-subagent-fork` (seeded from the parent's log) are two registered providers. You pick behavior by picking a provider — consistent with the registry being the selection mechanism. The fork backend seeds only a **balanced, completed-turn prefix** of the parent log: at tool-execute time the parent's turn is open (it holds the `assistant/message` and the dangling spawn `tool/call` with no `tool/result`), and seeding that raw prefix would give the child an unbalanced turn the [invariants](../../../../packages/support/invariants/src/index.ts) freeze-check rejects. +Rather than a `context: 'fresh' | 'fork'` request field, the distinction is the provider's identity: `dsh-subagent-spawn` (fresh, isolated, own system prompt) and `dsh-subagent-fork` (seeded from the parent's log) are two registered providers. You pick behavior by picking a provider — consistent with the registry being the selection mechanism. The fork backend seeds only a **balanced, completed-turn prefix** of the parent log: at tool-execute time the parent's turn is open (it holds the `assistant/message` and the dangling spawn `tool/call` with no `tool/result`), and seeding that raw prefix would give the child an unbalanced turn that the [invariants](../../../../packages/support/invariants/src/index.ts) trace replay rejects. ### Child isolation and the parent log diff --git a/docs/rfc/implemented/feature/2026-06-30-interception-seams.md b/docs/rfc/implemented/feature/2026-06-30-interception-seams.md index ba372b98b2..52d7e2b425 100644 --- a/docs/rfc/implemented/feature/2026-06-30-interception-seams.md +++ b/docs/rfc/implemented/feature/2026-06-30-interception-seams.md @@ -20,13 +20,13 @@ The canonical surface separates transformable policy, around-dispatch control, a ### The tool pipeline gives each phase one kind of authority -Every call follows one ordered pipeline: `tools/pre-execute` → monotonic guards → `tools/execute` → core dispatch → `tools/post-execute` → `tools/result`. The registry requires caller-owned `arguments` to survive lossless-JSON validation before and after cloning, then snapshots `ToolExecutionInput` into a pipeline execution with its own opaque token: identity fields and deeply frozen detached arguments are immutable for the whole pipeline, and a nested call's `parent` contains only the enclosing execution's token rather than its live object. Optional `signal` is the only operational field an around-dispatch wrapper may add, replace, or remove, and the complete object freezes before final observers run. This identity contract prevents a policy listener from silently changing what the log, UI, and tool body believe ran. +Every call follows one ordered pipeline: `tools/pre-execute` → monotonic guards → `tools/execute` → core dispatch → `tools/post-execute` → `tools/result`. The registry reads each caller-owned input field once, materializes `arguments` as detached lossless JSON in one recursive pass, and snapshots `ToolExecutionInput` into a pipeline execution with its own opaque token. Identity fields and deeply frozen arguments are immutable for the whole pipeline, and a nested call's `parent` contains only the enclosing execution's token rather than its live object. Optional `signal` is the only operational field an around-dispatch wrapper may add, replace, or remove, and the complete object freezes before final observers run. This identity contract prevents a policy listener from silently changing what the log, UI, and tool body believe ran. - **`tools/pre-execute`** is the extensible waterfall gate. Its `PreToolDecision` allows, denies, or asks. Deny skips `tools/execute` and core dispatch. Ask resolves through the optional approval seam: only `allowed-once` continues through guards and dispatch; rejection, cancellation, an unavailable channel, a missing approval service, or an agent-less call becomes a normalized denial. Every outcome still reaches post-policy and final observers. - **`ctx.tools.guard()`** installs synchronous scope-aware policy after the whole pre-execute waterfall. A guard may deny or abstain, never force-allow, so listener ordering cannot resurrect an operation that a final invariant forbids. - **`tools/execute`** is the around-dispatch waterfall for timeout, retry, and metrics plugins. A wrapper delegates to core dispatch with `next()`, may add, replace, or remove only `exec.signal` before doing so, and receives the already-normalized result of a thrown or unknown tool; returning its own valid result short-circuits dispatch. - **`tools/post-execute`** is the inspect/transform waterfall. Its `PostToolDecision` accepts, blocks with feedback, optionally replaces content, or attaches `additionalContext`; in-place mutation of the result is not a transform channel, because the registry rebuilds the outcome from a protected snapshot plus the returned decision. -- **`tools/result`** is the awaited parallel notification after every transform, lossless-JSON validation, and the outer error boundary. It receives the same frozen execution identity and an immutable snapshot of the authoritative result; observer failures are contained per listener and cannot change or reject `ToolRegistry.execute()`'s returned outcome. +- **`tools/result`** is the awaited parallel notification after every transform, lossless-JSON materialization, and the outer error boundary. It receives the same frozen execution identity and an immutable snapshot of the authoritative result; observer failures are contained per listener and cannot change or reject `ToolRegistry.execute()`'s returned outcome. Core dispatch and the tool body sit inside normalization boundaries, so tool, listener, malformed-result, non-JSON result, and identity-shape failures resolve as JSON-safe `isError` results rather than escaping the turn. A post-execute listener can therefore inspect a thrown tool, and a final observer sees exactly what the caller receives and the session log can persist. @@ -42,7 +42,7 @@ Core dispatch and the tool body sit inside normalization boundaries, so tool, li ### Pre-tool input rewrite is a separate consistency decision -`PreToolDecision` is allow/deny/ask only — **no `arguments` rewrite**. Output replacement is safe because `tool/result` is logged after execution from the final result. Input rewrite is different: `assistant/message` (model history) and `tool/call` (the audit record) are logged before `ToolRegistry.execute()`, while ACP and tool presentation read those arguments. The registry therefore seals the cloned arguments before `tools/pre-execute`; no listener or test shim can mutate them in place. An honest rewrite must update history, audit, presentation, and execution as one unit before that identity is created, which belongs to the separate [pre-tool input-rewrite proposal](../../proposed/feature/2026-06-30-pre-tool-input-rewrite.md) and its loop-side `TODO(pre-tool-input-rewrite)`. +`PreToolDecision` is allow/deny/ask only — **no `arguments` rewrite**. Output replacement is safe because `tool/result` is logged after execution from the final result. Input rewrite is different: `assistant/message` (model history) and `tool/call` (the audit record) are logged before `ToolRegistry.execute()`, while ACP and tool presentation read those arguments. The registry therefore seals the materialized arguments before `tools/pre-execute`; no listener or test shim can mutate them in place. An honest rewrite must update history, audit, presentation, and execution as one unit before that identity is created, which belongs to the separate [pre-tool input-rewrite proposal](../../proposed/feature/2026-06-30-pre-tool-input-rewrite.md) and its loop-side `TODO(pre-tool-input-rewrite)`. ### Boundaries diff --git a/docs/rfc/rejected/architecture/2026-06-11-immutable-public-surfaces.md b/docs/rfc/rejected/architecture/2026-06-11-immutable-public-surfaces.md index 6c404a05a9..3eedd92a2d 100644 --- a/docs/rfc/rejected/architecture/2026-06-11-immutable-public-surfaces.md +++ b/docs/rfc/rejected/architecture/2026-06-11-immutable-public-surfaces.md @@ -1,25 +1,24 @@ # RFC: Deep-readonly public surfaces -Status: rejected — the pervasive `DeepReadonly` type flip was rejected in favor of an always-on `deriveMessages` clone plus dev-mode `Object.freeze` + invariants. The immutability *goal* shipped via that alternative; see [dev-mode invariants](../../implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md). +Status: rejected — the pervasive `DeepReadonly` type flip is replaced by source-owned runtime immutability in `Session` plus relational development assertions. See [source-owned session immutability and dev-mode invariants](../../implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md). ## Problem -The session log is append-only by contract, but `session.events` returns `readonly SessionEvent[]` whose *elements* are mutable: a plugin can reach in and rewrite history (`events[0].data.content.push(...)`), silently breaking replay equivalence and the derived-history guarantee. The same applies to derived messages and prompt assemblies passed through waterfalls — mutation is sometimes the intended idiom (waterfall middleware mutates the request) and sometimes corruption (mutating a *logged* event), and the types don't distinguish. +The rejected proposal targeted an ownership hole that a `readonly SessionEvent[]` type alone cannot close: its elements remain mutable at runtime, so a cast or plain JavaScript can rewrite nested history. The implemented design closes that hole in `Session` by materializing and deep-freezing every accepted event and returning frozen array snapshots. In-flight prompt waterfalls remain intentionally transformable, so immutability is an ownership boundary rather than a blanket type rule. ## Proposal -> **Implemented differently — see the Status line and [dev-mode invariants](../../implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md).** The `DeepReadonly` design below was rejected as written (compile-only, high type-noise, castable). What shipped: an always-on deep clone in `deriveMessages` (closing the request/adapter aliasing path) plus a dev-mode `Object.freeze` + invariants plugin. The proposal text is kept for the record. +> **Implemented differently — see the Status line and [source-owned session immutability and dev-mode invariants](../../implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md).** The `DeepReadonly` design below is rejected as written: it is compile-only, noisy across consumers, and castable. `Session` instead snapshots and deep-freezes accepted events and public log snapshots in every composition; `deriveMessages()` returns detached frozen projections; the development plugin checks cross-record and cross-seam relationships. Make immutability part of the type where mutation is corruption: - `SessionEvent` data becomes `DeepReadonly` on the way OUT of a session (`events`, `session/event` listeners); `append()` keeps taking plain mutable input. A `DeepReadonly` utility type lands in dsh-llm next to the brand/never helpers. - `deriveMessages()` returns deep-readonly messages; the loop clones before handing a mutable request to the `agent/request` waterfall (mutation there is sanctioned — the clone makes the boundary explicit and cheap, once per step). - `PromptAssembly` stays mutable through its waterfall (sanctioned) but the registry's internal section list is cloned per assembly (already true). -- Optionally, dev-mode `Object.freeze` of event data behind [the dev-mode invariants](../../implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md) flag, so sanctioned-mutation violations throw in tests rather than corrupting silently. ## Plan -Introduce `DeepReadonly`, flip the session read paths, fix resulting compile errors in consumers (expected: a handful in tests), add the freeze-in-dev option alongside [the dev-mode invariants](../../implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md) plugin. +Introduce `DeepReadonly`, flip the session read paths, and fix the resulting compile errors in consumers. ## Risks diff --git a/packages/compact/compact-basic/tests/compact-basic.spec.ts b/packages/compact/compact-basic/tests/compact-basic.spec.ts index e3d80cd567..e47ca434e3 100644 --- a/packages/compact/compact-basic/tests/compact-basic.spec.ts +++ b/packages/compact/compact-basic/tests/compact-basic.spec.ts @@ -1700,7 +1700,7 @@ describe('BasicCompactService under the real invariants plugin', () => { async function setup(): Promise<{ ctx: Context; session: Session; svc: BasicCompactService }> { const ctx = new Context() await ctx.plugin(SessionStore) - await ctx.plugin(Invariants, {}) + await ctx.plugin(Invariants) await ctx.plugin(LlmService) ctx.llm.registerAdapter(['test-model'], new ScriptedAdapter('CONDENSED')) await ctx.plugin(BasicCompactService, cfg({ auto: false })) diff --git a/packages/compact/compact-basic/tests/compact-loop-repro.spec.ts b/packages/compact/compact-basic/tests/compact-loop-repro.spec.ts index f2ca3ccdd0..1efb417b48 100644 --- a/packages/compact/compact-basic/tests/compact-loop-repro.spec.ts +++ b/packages/compact/compact-basic/tests/compact-loop-repro.spec.ts @@ -76,7 +76,7 @@ async function harness(toolSteps: number): Promise<{ ctx: Context; compact: Repr const ctx = new Context() await ctx.plugin(LlmService) await ctx.plugin(SessionStore) - await ctx.plugin(Invariants, {}) + await ctx.plugin(Invariants) await ctx.plugin(SystemPrompt) await ctx.plugin(ToolRegistry) await ctx.plugin(AgentRegistry) diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts index 7f7882f2b7..aea7927571 100644 --- a/packages/cordis/tool-cordis/src/api-catalog.ts +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -813,7 +813,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'SkillLookupOptions', - declaration: 'export interface SkillLookupOptions {\n cwd?: string | undefined;\n signal?: AbortSignal | undefined;\n}', + declaration: 'export interface SkillLookupOptions {\n readonly cwd?: string | undefined;\n readonly signal?: AbortSignal | undefined;\n}', }, { name: 'SkillProvider', diff --git a/packages/core/agent-loop/README.md b/packages/core/agent-loop/README.md index 217ba0a643..ac1a0e079f 100644 --- a/packages/core/agent-loop/README.md +++ b/packages/core/agent-loop/README.md @@ -8,13 +8,13 @@ This is the only package in the harness that contains concrete loop logic. Every ### Public API -Lifecycle (scoped): programmatic creation and resume snapshot caller-owned identity/configuration data, reserve both IDs, mint `agent.ctx`, and install the ordered teardown skeleton before awaiting optional `setup`. Resume installs an owner-liveness sentinel before persistence load, then hands ownership directly to the full lifecycle. After setup resolves, the factory checks its lifecycle flag, owner-fiber state, and owning agent status around one microtask checkpoint so a same-turn Cordis unload wins before publication. Successful setup inserts both session and agent before announcing either, enables driving immediately before `agent/session-start`, then starts the loop. Setup calls to `send`/`steer`/`inject`/`cancel` reject structurally; load/setup rejection or owner unload publishes nothing. Teardown runs stop/drain (including outstanding idle-injection flushes) → unregister → detach session → unwind scope. All `agent/*` dispatches go through `agentEvents(ctx, agent)`; per-step assembly through `assembleContextFor(agent)`; the turn-end durability checkpoint through `ctx.sessions.flush(session)`. +Lifecycle (scoped): programmatic creation and resume snapshot caller-owned identity/configuration data, reserve both IDs, mint `agent.ctx`, and install the ordered teardown skeleton before awaiting optional `setup`. A create hands one-read raw seed and metadata references synchronously to the session boundary, which rejects exotic shells and materializes accepted values in a single recursive pass; pre-cloning either value could incorrectly sanitize prototypes. Resume installs an owner-liveness sentinel before persistence load, captures each loaded metadata field once, then hands ownership directly to the full lifecycle. After setup resolves, the factory checks its lifecycle flag, owner-fiber state, and owning agent status around one microtask checkpoint so a same-turn Cordis unload wins before publication. Successful setup inserts both session and agent before announcing either, enables driving immediately before `agent/session-start`, then starts the loop. Setup calls to `send`/`steer`/`inject`/`cancel` reject structurally; load/setup rejection or owner unload publishes nothing. Teardown runs stop/drain (including outstanding idle-injection flushes) → unregister → detach session → unwind scope. All `agent/*` dispatches go through `agentEvents(ctx, agent)`; per-step assembly through `assembleContextFor(agent)`; the turn-end durability checkpoint through `ctx.sessions.flush(session)`. - `ctx.agentLoop.create(id: string, options?: AgentOptions, meta?: { cwd?: string }): ReactLoopAgent` — config-driven create: an agent on a fresh per-run session id `${id}-session-` with optional session metadata. Used for `cordis.yml`-configured agents. The per-run uuid avoids colliding with the on-disk log a prior run materialized once a durable persistence backend is loaded; each run is a new session (a deliberate demo simplification — a real resume-or-create policy is a TODO). Disposed with the calling fiber. `AgentLoop` also implements the `AgentFactory` seam and registers itself via `ctx.agents.setFactory(this)`, so plugins create/resume agents through `ctx.agents` (the interface): -- `ctx.agents.create({ agentId, sessionId, meta?, seed?, agentOptions?, setup? }): Promise` — programmatic create on a caller-supplied `sessionId`, NOT `${id}-session`. It awaits the unpublished setup transaction before returning; `meta` carries cwd/lineage/seed-boundary metadata and `seed` reconstructs a forked child prefix. The resolved [`AgentHandle`](../agent/README.md) owns exact teardown. +- `ctx.agents.create({ agentId, sessionId, meta?, seed?, agentOptions?, setup? }): Promise` — programmatic create on a caller-supplied `sessionId`, NOT `${id}-session`. It awaits the unpublished setup transaction before returning; `meta` carries cwd/lineage/seed-boundary metadata and `seed` reconstructs a forked child prefix after the session boundary validates and detaches each raw value in one pass. The resolved [`AgentHandle`](../agent/README.md) owns exact teardown. - `ctx.agents.resume({ agentId, resumeSessionId, agentOptions?, setup? }): Promise` — load a persisted session via `ctx.sessionPersistence` ([session persistence](../../../docs/rfc/implemented/architecture/2026-06-14-session-persistence.md)), reconstruct its history, then await setup against a fresh unpublished agent scope before rollback-covered publication. The live session id is the resumed id; turn numbering and derived history continue from the loaded log. Requires a session-persistence backend (NOT hard-injected — non-persistent demos still work; `resume` rejects with a clear error when persistence is absent). Returns an `AgentHandle`. The config-driven `ctx.agentLoop.create()` path keeps its agent owned by the loop fiber (it discards the handle) — only the programmatic factory callers (the ACP bridge and in-process subagent backends) hold a handle and own per-agent teardown. diff --git a/packages/core/agent-loop/src/index.ts b/packages/core/agent-loop/src/index.ts index bd5b7e3188..1e5c122fc5 100644 --- a/packages/core/agent-loop/src/index.ts +++ b/packages/core/agent-loop/src/index.ts @@ -178,20 +178,21 @@ export class AgentLoop extends Service implements AgentFactory { */ async createAgent(options: CreateAgentOptions): Promise { // Snapshot every caller-owned field before the first async setup boundary. - // The callback itself is an identity capability; all data fields are - // detached so caller mutation cannot drift a reserved/published identity or - // the options the accepted agent observes. + // The callback itself is an identity capability. Agent options detach here; + // seed and metadata stay raw only until sessions.prepare() synchronously + // reads, validates, and detaches them, so structuredClone cannot erase an + // exotic prototype before the session boundary sees it. const agentId = options.agentId const sessionId = options.sessionId const setup = options.setup const agentOptions = structuredClone(options.agentOptions ?? {}) - const seed = options.seed === undefined ? undefined : structuredClone(options.seed) - const meta = structuredClone(options.meta ?? {}) + const seed = options.seed + const meta = options.meta const release = this.reserve(agentId, sessionId) try { const session = this.ctx.sessions.prepare(sessionId, { ...seed !== undefined ? { seed } : {}, - meta, + ...meta !== undefined ? { meta } : {}, }) // A seeded (forked) create is still a fresh start, NOT a resume. return await this.startOwned(agentId, agentOptions, session, 'startup', setup) @@ -281,16 +282,23 @@ export class AgentLoop extends Service implements AgentFactory { throw new Error(`agent "${agentId}" resume aborted: owner disposed during persistence load`) }), ]) + // The backend is an async boundary too. Read each loaded header field + // once so a stateful implementation cannot pass a valid presence check + // and then substitute a different value during reconstruction. + const createdAt = meta.createdAt + const cwd = meta.cwd + const parentSession = meta.parentSession + const seedLength = meta.seedLength // An out-of-band direct registry/session insertion can still race this // service's reservation, so the public enter primitives re-check exact // liveness at publication. const session = this.ctx.sessions.prepare(sessionId, { seed: events, meta: { - createdAt: meta.createdAt, - ...meta.cwd !== undefined ? { cwd: meta.cwd } : {}, - ...meta.parentSession !== undefined ? { parentSession: meta.parentSession } : {}, - ...meta.seedLength !== undefined ? { seedLength: meta.seedLength } : {}, + createdAt, + ...cwd !== undefined ? { cwd } : {}, + ...parentSession !== undefined ? { parentSession } : {}, + ...seedLength !== undefined ? { seedLength } : {}, }, }) // Calling startOwned synchronously installs the complete lifecycle diff --git a/packages/core/agent-loop/tests/resume.spec.ts b/packages/core/agent-loop/tests/resume.spec.ts index 2a4ba7e904..8ed557faaf 100644 --- a/packages/core/agent-loop/tests/resume.spec.ts +++ b/packages/core/agent-loop/tests/resume.spec.ts @@ -5,7 +5,7 @@ import { tmpdir } from 'node:os' import { join } from 'node:path' import LlmService from '@deepseek-ai/dsh-llm' import SessionStore, { Session, SessionId } from '@deepseek-ai/dsh-session' -import type { SessionEvent } from '@deepseek-ai/dsh-session' +import type { SessionEvent, SessionHeader } from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' import AgentRegistry, { AgentId } from '@deepseek-ai/dsh-agent' @@ -99,6 +99,22 @@ describe('the session-persistence RFC: AgentLoop factory create/resume', () => { await ctx.fiber.dispose() }) + it('createAgent sends raw metadata to the session validator before cloning can sanitize it', async () => { + class ExoticMeta { + readonly cwd = '/accepted' + } + const { ctx } = await persistentHarness(new MockAdapter([textResponse('hi')])) + + await expect(ctx.agents.create({ + agentId: AgentId('exotic-meta-agent'), + sessionId: SessionId('exotic-meta-session'), + meta: new ExoticMeta(), + })).rejects.toThrow(/session metadata is not a plain JSON record/) + expect(ctx.agents.get(AgentId('exotic-meta-agent'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('exotic-meta-session'))).toBeUndefined() + await ctx.fiber.dispose() + }) + it('resume of a session with no cwd carries an undefined cwd header', async () => { // Lifecycle 1: create a no-cwd session and run a turn. const adapter1 = new MockAdapter([textResponse('a')]) @@ -411,6 +427,54 @@ describe('the session-persistence RFC: AgentLoop factory create/resume', () => { await ctx2.fiber.dispose() }) + it('reads each loaded metadata field once before reconstructing a resumed session', async () => { + const sessionId = SessionId('resume-loaded-meta-once') + const root = await persistSession(sessionId) + const ctx = await mountPersistentHarness(root, new MockAdapter([textResponse('next')])) + const loaded = await ctx.sessionPersistence.load(sessionId) + const reads = { createdAt: 0, cwd: 0, parentSession: 0, seedLength: 0 } + const meta = Object.defineProperties({ + version: loaded.meta.version, + id: loaded.meta.id, + }, { + createdAt: { + enumerable: true, + get: () => { reads.createdAt += 1; return reads.createdAt === 1 ? loaded.meta.createdAt : 1n }, + }, + cwd: { + enumerable: true, + get: () => { reads.cwd += 1; return reads.cwd === 1 ? '/loaded' : 'relative' }, + }, + parentSession: { + enumerable: true, + get: () => { reads.parentSession += 1; return reads.parentSession === 1 ? SessionId('parent') : 1n }, + }, + seedLength: { + enumerable: true, + get: () => { reads.seedLength += 1; return reads.seedLength === 1 ? 0 : 1n }, + }, + }) as unknown as SessionHeader + ctx.sessionPersistence.load = () => Promise.resolve({ meta, events: loaded.events }) + + const resumed = await ctx.agents.resume({ + agentId: AgentId('resume-loaded-meta-once'), + resumeSessionId: sessionId, + agentOptions: { model: 'mock' }, + }) + + expect(reads).toEqual({ createdAt: 1, cwd: 1, parentSession: 1, seedLength: 1 }) + expect(resumed.agent.session.header).toEqual({ + version: loaded.meta.version, + id: sessionId, + createdAt: loaded.meta.createdAt, + cwd: '/loaded', + parentSession: 'parent', + seedLength: 0, + }) + await resumed.dispose() + await ctx.fiber.dispose() + }) + it('an idle inject() is flushed durably on its own (survives without explicit flush/dispose)', async () => { // Lifecycle 1: run a turn, then inject context while idle. The idle inject // wraps its context/message in a one-shot turn AND checkpoints it (the turn-enclosure RFC) diff --git a/packages/core/agent-loop/tests/review-fixes.spec.ts b/packages/core/agent-loop/tests/review-fixes.spec.ts index e527099a88..3cfa743b65 100644 --- a/packages/core/agent-loop/tests/review-fixes.spec.ts +++ b/packages/core/agent-loop/tests/review-fixes.spec.ts @@ -605,7 +605,7 @@ describe('P1-5: a started turn (and any open step) is always closed on a boundar await ctx.plugin(ToolRegistry) await ctx.plugin(AgentRegistry) await ctx.plugin(AgentLoop, { agents: [] }) - await ctx.plugin(Invariants, { freeze: false }) + await ctx.plugin(Invariants) ctx.llm.registerAdapter(['mock'], adapter) return ctx } @@ -1014,7 +1014,7 @@ describe('disposal/cancel honored during pre-step assembly (P1-1)', () => { await ctx.plugin(ToolRegistry) await ctx.plugin(AgentRegistry) await ctx.plugin(AgentLoop, { agents: [] }) - await ctx.plugin(Invariants, { freeze: false }) + await ctx.plugin(Invariants) ctx.llm.registerAdapter(['mock'], adapter) // Blocking listener on the parent context (survives fiber disposal). @@ -1071,7 +1071,7 @@ describe('disposal/cancel honored during pre-step assembly (P1-1)', () => { await ctx.plugin(ToolRegistry) await ctx.plugin(AgentRegistry) await ctx.plugin(AgentLoop, { agents: [] }) - await ctx.plugin(Invariants, { freeze: false }) + await ctx.plugin(Invariants) ctx.llm.registerAdapter(['mock'], adapter) const unlisten = ctx.on('system-prompt/assemble', async function (_assembly, _context, next) { @@ -1127,7 +1127,7 @@ describe('disposal/cancel honored during pre-step assembly (P1-1)', () => { await ctx.plugin(ToolRegistry) await ctx.plugin(AgentRegistry) await ctx.plugin(AgentLoop, { agents: [] }) - await ctx.plugin(Invariants, { freeze: false }) + await ctx.plugin(Invariants) ctx.llm.registerAdapter(['mock'], adapter) ctx.on('agent/pre-step', async () => { @@ -1179,7 +1179,7 @@ describe('disposal/cancel honored during pre-step assembly (P1-1)', () => { await ctx.plugin(ToolRegistry) await ctx.plugin(AgentRegistry) await ctx.plugin(AgentLoop, { agents: [] }) - await ctx.plugin(Invariants, { freeze: false }) + await ctx.plugin(Invariants) ctx.llm.registerAdapter(['mock'], adapter) ctx.on('agent/pre-step', async () => { @@ -1228,7 +1228,7 @@ describe('disposal/cancel honored during pre-step assembly (P1-1)', () => { await ctx.plugin(ToolRegistry) await ctx.plugin(AgentRegistry) await ctx.plugin(AgentLoop, { agents: [] }) - await ctx.plugin(Invariants, { freeze: false }) + await ctx.plugin(Invariants) ctx.llm.registerAdapter(['mock'], adapter) ctx.on('system-prompt/assemble', async function (_assembly, _context, next) { diff --git a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts index 2bf58be832..6d0bb3107b 100644 --- a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts +++ b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts @@ -1,7 +1,7 @@ import { describe, expect, it } from 'vitest' import { Context } from 'cordis' import LlmService from '@deepseek-ai/dsh-llm' -import SessionStore, { SessionId } from '@deepseek-ai/dsh-session' +import SessionStore, { SessionId, type SessionEvent } from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' import AgentRegistry, { AgentId, agentEvents, assembleContextFor } from '@deepseek-ai/dsh-agent' @@ -307,6 +307,36 @@ describe('agent scope lifecycle', () => { await retry.dispose() }) + it('rejects an exotic seed before publishing either reserved identity', async () => { + const ctx = await harness() + const published: string[] = [] + ctx.on('session/created', () => { published.push('session') }) + ctx.on('agent/created', () => { published.push('agent') }) + class ExoticData { readonly value = 'not durable JSON' } + const seed = [{ + seq: 0, + type: 'test/exotic-seed', + data: new ExoticData(), + }] as unknown as SessionEvent[] + + await expect(ctx.agents.create({ + agentId: AgentId('exotic-seed'), + sessionId: SessionId('exotic-seed-session'), + agentOptions: { model: 'mock' }, + seed, + })).rejects.toThrow(/seed event at index 0 is not losslessly JSON-serializable/) + + expect(published).toEqual([]) + expect(ctx.agents.get(AgentId('exotic-seed'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('exotic-seed-session'))).toBeUndefined() + const retry = await ctx.agents.create({ + agentId: AgentId('exotic-seed'), + sessionId: SessionId('exotic-seed-session'), + agentOptions: { model: 'mock' }, + }) + await retry.dispose() + }) + it('a throwing session/created listener disposes the scope (pre-nesting rollback window)', async () => { const ctx = await harness() let boom = true diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index 71e2be279d..23fa073ea1 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -20,7 +20,7 @@ The scoped-registration surface: `Agent.ctx` is the agent's scope context (`dsh- Agent *creation* is provided by the plugin implementing `AgentFactory` (`dsh-agent-loop`), registered via `setFactory`. This keeps creation on the `dsh-agent` interface so consumers (UI, the ACP bridge) program against `ctx.agents` without depending on the concrete loop package. - `ctx.agents.setFactory(factory: AgentFactory): () => Promise | void` — register the creation factory (the loop calls this on construction). Throws on a second factory; the slot clears on dispose. -- `ctx.agents.create(options: CreateAgentOptions): Promise` — snapshot caller-owned IDs/options/metadata/seed, construct and await optional setup while unpublished, insert and announce both session and agent, open the `agent/session-start` driving boundary, then start a new loop on the caller-supplied `sessionId`. Agent/session IDs are reserved across setup; setup rejection or owner unload publishes nothing. Publication is rollback-covered: if a creation listener throws, entries and scope unwind but effects of already-delivered notifications remain observable; an agent whose announcement began emits `agent/disposed` during that rollback. Rejects if no factory is registered. +- `ctx.agents.create(options: CreateAgentOptions): Promise` — snapshot caller-owned IDs/options/metadata and hand the one-read raw seed synchronously to the session boundary for one-pass lossless-JSON materialization, construct and await optional setup while unpublished, insert and announce both session and agent, open the `agent/session-start` driving boundary, then start a new loop on the caller-supplied `sessionId`. Agent/session IDs are reserved across setup; seed rejection, setup rejection, or owner unload publishes nothing. Publication is rollback-covered: if a creation listener throws, entries and scope unwind but effects of already-delivered notifications remain observable; an agent whose announcement began emits `agent/disposed` during that rollback. Rejects if no factory is registered. - `ctx.agents.resume(options: ResumeAgentOptions): Promise` — snapshot caller-owned IDs/options, load a persisted session ([session persistence](../../../docs/rfc/implemented/architecture/2026-06-14-session-persistence.md)), mint a fresh agent scope, await optional setup while unpublished, then follow the same insert → announce → session-start → loop-start boundary. The IDs are reserved across persistence load and setup; load/setup rejection or owner unload publishes nothing. Rejects if no factory is registered or session persistence is unconfigured. `AgentHandle = { agent: Agent; dispose(): Promise }`. The disposer is a **capability** — only the holder can tear this agent down. `dispose()` stops the loop, `await`s its exit plus every outstanding idle-injection flush (quiescence — NOT just the `disposed` status flip), unregisters the agent, removes its session from the store, and finally unwinds its scoped world. This order captures every agent-started `session/flush` before the session is detached and keeps scoped listeners alive through those checkpoints. `ctx.agents.get(id)` still returns a bare `Agent` — the handle is only for the OWNER that created it. The ACP bridge and in-process subagent backends are production consumers; config-created agents are owned by the loop fiber and never need a handle. diff --git a/packages/core/agent/src/index.ts b/packages/core/agent/src/index.ts index c73de89e6d..959ca4784c 100644 --- a/packages/core/agent/src/index.ts +++ b/packages/core/agent/src/index.ts @@ -48,7 +48,10 @@ export interface CreateAgentOptions { * `cwd`/`parentSession`/`seedLength` fields of * {@link CreateSessionOptions.meta} in dsh-session (the internal-only * `createdAt`, used when reconstructing a persisted session, is deliberately - * excluded — a factory caller never sets it). + * excluded — a factory caller never sets it). The factory reads this raw + * reference once and hands it synchronously to the session boundary, which + * rejects an exotic shell and captures each accepted field once before any + * asynchronous setup. */ meta?: { cwd?: string; parentSession?: SessionId; seedLength?: number } /** @@ -57,9 +60,11 @@ export interface CreateAgentOptions { * prefix so `deriveMessages()`/`lastTurnNumber` continue from it — used by the * in-process FORK subagent backend to seed a child with a balanced * completed-turn prefix of the parent's log. The prefix MUST be contiguous - * from seq 0 and balanced (no open turn/step, no dangling tool-call), or the - * session constructor (and the dev-mode invariants replay) reject it. Absent - * for a fresh (spawn) child. + * from seq 0, carry only lossless-JSON data, and be balanced (no open + * turn/step, no dangling tool-call), or the session constructor (and the + * dev-mode invariants replay) reject it. The factory passes the raw seed to + * the synchronous one-pass validator/copier; it never pre-clones and thereby + * sanitizes exotic prototypes. Absent for a fresh (spawn) child. */ seed?: SessionEvent[] /** Per-agent options (model, …). */ diff --git a/packages/core/scope/README.md b/packages/core/scope/README.md index e57f475816..f779dab57e 100644 --- a/packages/core/scope/README.md +++ b/packages/core/scope/README.md @@ -12,7 +12,7 @@ Scoped-context registration primitive. `createScope(ctx, key)` mints a Cordis co - `scopeTarget(base: T, key?: ScopeKey): Scoped` Build the dispatch `thisArg` for a scope-filtered event: composes `base`'s own `Context.filter` with the scope predicate (untagged listener ⇒ admitted; tagged ⇒ admitted iff tag === key; `key === undefined` ⇒ untagged only). Listener `this` stays `base`-shaped. `{ global: true }` listeners bypass filtering (Cordis semantics). - `Scoped` The compile-time carrier brand: scope-filtered events demand it as their `this` type, so dispatching with a bare subject is a compile error. - `isScopeCarrier(value)` / `carrierKeyOf(value)` Runtime carrier marks, used by the dev invariants to assert every scope-filtered dispatch carries a carrier keyed to the subject its arguments name. -- `scopeHost(ctx, services)` Test/tooling host whose shared `dispose()` waits for both the host fiber and every minted scope, including a child already tearing down through `rawDispose`. +- `scopeHost(ctx, services)` Test/tooling host that snapshots the requested service list before activation, fails loud with stable missing-service diagnostics, and whose shared `dispose()` waits for both the host fiber and every minted scope, including a child already tearing down through `rawDispose`. ## Design contract diff --git a/packages/core/scope/src/index.ts b/packages/core/scope/src/index.ts index 7a7032b0b6..276b406dcd 100644 --- a/packages/core/scope/src/index.ts +++ b/packages/core/scope/src/index.ts @@ -320,6 +320,8 @@ export interface ScopeHost { * can never be satisfied RESOLVES its fiber await without ever running the * callback — a silent no-op host. This helper fails LOUD instead: when the * callback did not run, it names the absent services and disposes the host. + * The service list is copied before plugin activation so caller mutation + * across the await cannot change dependency resolution or diagnostics. * @param ctx - the context to mount the host under. * @param services - the service names scopes minted through this host reach * (the host plugin's `inject` list). @@ -328,16 +330,20 @@ export interface ScopeHost { * Cordis dead end. */ export async function scopeHost(ctx: Context, services: string[]): Promise { + // The inject list crosses an await before missing-service diagnostics run. + // Detach it now so caller mutation cannot change either Cordis dependency + // resolution or the names reported by this helper. + const requiredServices = [...services] let hostCtx: Context | undefined // A named function statement (not Object.assign({name}) — Function.name is // read-only) so diagnostics read `scopeHost`. function scopeHostPlugin(inner: Context): void { hostCtx = inner } - const fiber = ctx.plugin(Object.assign(scopeHostPlugin, { inject: services })) + const fiber = ctx.plugin(Object.assign(scopeHostPlugin, { inject: requiredServices })) await fiber if (hostCtx === undefined) { // Dependency-pending: cordis resolves the await without running the // callback. Name the absentees and unwind the pending fiber. - const missing = services.filter(name => ctx.get(name) === undefined) + const missing = requiredServices.filter(name => ctx.get(name) === undefined) await fiber.dispose() /* v8 ignore next -- the '(unknown)' fallback is defensive: a pending * fiber with zero absent services cannot occur (an all-present inject diff --git a/packages/core/scope/tests/scope.spec.ts b/packages/core/scope/tests/scope.spec.ts index 44b9cf4442..e572584fb1 100644 --- a/packages/core/scope/tests/scope.spec.ts +++ b/packages/core/scope/tests/scope.spec.ts @@ -367,6 +367,16 @@ describe('scopeHost', () => { .rejects.toThrow('scopeHost: services "tools", "systemPrompt" not available') }) + it('snapshots missing-service diagnostics across the host activation await', async () => { + const ctx = new Context() + const services = ['tools', 'systemPrompt'] + const pending = scopeHost(ctx, services) + services.splice(0) + + await expect(pending) + .rejects.toThrow('scopeHost: services "tools", "systemPrompt" not available') + }) + it('names a single absent service in the singular', async () => { const ctx = new Context() await expect(scopeHost(ctx, ['tools'])).rejects.toThrow('scopeHost: service "tools" not available') diff --git a/packages/core/session/README.md b/packages/core/session/README.md index 094c3073df..36052d9e7a 100644 --- a/packages/core/session/README.md +++ b/packages/core/session/README.md @@ -8,7 +8,7 @@ Creates and holds event-sourced `Session` instances. Persistence is intentionall ### Public API -- `ctx.sessions.create(id?: SessionId, options?: { seed?: SessionEvent[]; meta?: { cwd?: string; parentSession?: SessionId; createdAt?: number; seedLength?: number } }): Session` — Create a session. `options.seed` replays/forks an existing event log; `options.meta` attaches creation metadata (validated absolute `cwd`, `parentSession` lineage, seed boundary) as the immutable `SessionHeader`. The store fills `version`/`id` and defaults `createdAt` to now; a caller reconstructing a persisted session passes the original `createdAt` and persisted `seedLength` to preserve them. Disposed with the calling fiber. +- `ctx.sessions.create(id?: SessionId, options?: { seed?: SessionEvent[]; meta?: { cwd?: string; parentSession?: SessionId; createdAt?: number; seedLength?: number } }): Session` — Create a session. `options.seed` replays/forks an existing event log: the constructor reads each array entry once, then recursively validates and copies every nested value in one pass so validation and storage cannot observe different getter results or erase an exotic prototype before checking it. `options.meta` attaches creation metadata (validated absolute `cwd`, `parentSession` lineage, seed boundary) as the immutable `SessionHeader`: the store rejects an exotic metadata shell, reads every accepted field once, and constructs a detached, deep-frozen header. The store fills `version`/`id` and defaults `createdAt` to now; a caller reconstructing a persisted session passes the original `createdAt` and persisted `seedLength` to preserve them. Disposed with the calling fiber. - `ctx.sessions.flush(session: Session): Promise` Dispatch the awaited `session/flush` durability checkpoint with the carrier captured at enter — THE flush entry point (the loop's turn-end checkpoint and idle injection call it; never dispatch a raw `ctx.parallel`). Rejects a prepared, detached, or stale same-id object instead of inventing a subject-less carrier. - `ctx.sessions.fork(source, boundary?, childSessionId?): Session` — Resolve a live session object or id, select a seed through the inclusive `boundary` event seq (default: current last event), require that boundary to be `turn/end`, and create a live child session with lineage metadata. - `ctx.sessions.get(id: SessionId): Session | undefined` @@ -18,7 +18,7 @@ Creates and holds event-sourced `Session` instances. Persistence is intentionall `create()` covers the common case (the session is owned by the calling fiber). When a session must be torn down **in order with another resource** — so a final flush is captured before `onAppend` detaches — `create()`'s self-contained effect is wrong, because a fiber unload disposes sibling effects *concurrently*. For that, split the lifecycle and fold it into the owner's single effect: -- `ctx.sessions.prepare(id?, options?): Session` — validate the id/cwd and construct the `Session`, WITHOUT entering it into the store. Same options as `create`. +- `ctx.sessions.prepare(id?, options?): Session` — read `options.seed`/`options.meta` once, validate and detach the metadata/header, and construct the `Session` WITHOUT entering it into the store. Same options as `create`. - `ctx.sessions.enter(session): () => void` — wire `onAppend` → `session/event`, capture its scope carrier, and add the session to the store; returns the idempotent DETACH disposer, which clears both notification and carrier state. Does NOT emit `session/created` (the caller installs the disposer first, then calls `announce`, so a throwing listener rolls the attach back). It re-checks the id because public `prepare`/`enter` calls may be interleaved; a stale prepared object must not overwrite a live same-id session. - `ctx.sessions.announce(session): void` — emit `session/created` for an entered session. @@ -32,12 +32,17 @@ The store announces creation, publishes each append, and provides an awaited dur Plain class (not a Cordis Service). Create via `ctx.sessions.create()`. -- `session.append(type, data, opts?): SessionEvent` — synchronous, never blocks on I/O. **Throws** if `data` is not losslessly JSON-serializable (BigInt, function, symbol, undefined, non-finite number, circular ref, or an exotic object like Map/Set/Date) — the event log is the durable source of truth, so this invariant is enforced at the source (exported as `isJsonValue` for backends to reuse on their replay/fork entry points). A third parameter `opts: SurfaceIntent` carries surface metadata: `surfaceOp` controls how the event enters the surface linked list, and `sourceEventSeqs` records provenance (the seq numbers of events this one derives from). It is **required** for the five `SurfaceEventType` events (every message-producing event must declare how it joins the surface) and rejected by the compiler for non-surface types. The marker requirement is enforced two ways: the typed overload makes `opts` mandatory when `type` is a specific `SurfaceEventType` literal, AND `append` **throws** at runtime if a surface-eligible event arrives with no `surfaceOp` — covering the case where `type` widens to the `SessionEventType` union (a caller iterating raw events, where the conditional overload collapses to optional) so a marker-less message event can never silently land in the log and vanish from `deriveMessages()`. +- `session.append(type, data, opts?): SessionEvent` — synchronous, never blocks on I/O. **Throws** if `data` or surface metadata is not losslessly JSON-serializable (BigInt, function, symbol, undefined, `-0`, non-finite number, circular ref, or an exotic object like Map/Set/Date/class instance). One recursive validate-and-copy pass reads each nested value exactly once and produces the detached value that enters the log, so validation and durability cannot diverge through a stateful getter or a prototype-erasing clone. The accepted event and every nested value are deep-frozen before publication; the returned event and observer notification share that immutable owned record. A third parameter `opts: SurfaceIntent` carries surface metadata: `surfaceOp` and `sourceEventSeqs` are each read once, then the former controls how the event enters the surface linked list and the latter records provenance. Runtime validation accepts only `'append'` or the exact `{ op: 'replace', start, end }` record with non-negative safe-integer bounds, and provenance must be an array of non-negative safe integers; non-surface events reject either field. The marker is **required** for the five `SurfaceEventType` events (every message-producing event must declare how it joins the surface) and rejected by the compiler for non-surface types. The contract is enforced two ways: the typed overload handles a specific event literal, AND runtime checks cover widened unions and raw seed/load logs so invalid metadata can never silently enter or disappear from `deriveMessages()`. - `session.deriveMessages(): Message[]` — the LLM message history, CACHED: each surface node is projected exactly once, when first seen (O(new nodes) per call; a surface rewrite rebuilds via `surface.replaceGeneration`). Returns a fresh array snapshot per call over SHARED, deep-frozen `Message` objects — cloned once off the log at projection time, so a consumer can never mutate logged data (mutation throws). The surface is the single source of derived history — there is no raw-log fallback. - `session.deriveEventMessage(event): Message | null` — the per-event projection `deriveMessages()` folds: one event's derived message (an unfrozen clone), or `null` when it produces none (a non-surface event, or an empty-content `assistant/message` hosting only usage). External reconstructors and the dev invariant fold the same function over a log prefix's surface, so no two paths can disagree about what a request's messages were (the reconstructability RFC). - `session.surface: SurfaceManager` — the derived surface, lazily rebuilt from `surfaceOp` markers in the log. Processes only new events (delta) on each access — the log is append-only, so prior events never change. `surface.replaceGeneration` is the rewrite signal: bumped by every folded `replace` and by `invalidate()`, never reset, so an incremental consumer comparing generations cannot be fooled. -- `session.events`, `session.seq`, `session.id` -- `session.header: SessionHeader` — immutable creation metadata (`version`, `id`, `createdAt`, optional `cwd`/`parentSession`/`seedLength`). Kept out of the event log (a storage concern, not replayable state); a minimal header (stamped with the current `SESSION_FORMAT_VERSION`) is synthesized for bare `Session` construction. +- `session.events` — a cached, frozen array snapshot over deep-frozen events. Repeated reads without an append return the same array; an append invalidates the cache and the next read returns a new snapshot, while earlier snapshots stay unchanged. Neither a cast nor a retained reference can push into the live log or rewrite an accepted event. +- `session.seq`, `session.id` +- `session.header: SessionHeader` — detached, deep-frozen creation metadata (`version`, `id`, `createdAt`, optional `cwd`/`parentSession`/`seedLength`). Construction validates its lossless-JSON shape and requires the header id to match `session.id`, so a caller cannot later mutate persistence routing or lineage through an aliased header. Kept out of the event log (a storage concern, not replayable state); a minimal header (stamped with the current `SESSION_FORMAT_VERSION`) is synthesized for bare `Session` construction. + +### Lossless JSON utilities + +Durable values need one accepted representation, not a check followed by a second read. `isJsonValue(value)` is the boolean predicate; `snapshotJsonValue(value)` recursively validates and copies a plain value in one pass, returning `undefined` for invalid input and propagating a throwing getter. The snapshot helper accepts finite JSON numbers except `-0` (JSON rewrites it to `0`), dense ordinary arrays, and plain or null-prototype objects; it rejects cycles, unsupported scalars, and exotic prototypes before normalization. ### Surface types @@ -65,12 +70,12 @@ Every `SessionEvent` carries two optional top-level fields (structural metadata) ### Metadata types (`types.ts`) -- `SessionHeader` — immutable session metadata, written once: `{ version, id, createdAt, cwd?, parentSession?, seedLength? }`. Owned here (beside `SessionId`) because `Session.header` is typed by it; persistence backends re-export it rather than own it (which would force a package cycle). +- `SessionHeader` — session metadata written once when published as `Session.header`, where detachment and deep-freezing enforce immutability at runtime: `{ version, id, createdAt, cwd?, parentSession?, seedLength? }`. Persistence loaders may return mutable detached copies of the same data type. Owned here (beside `SessionId`) because `Session.header` is typed by it; persistence backends re-export it rather than own it (which would force a package cycle). ### Extension points - Persistence plugins: subscribe to `session/event` (write-behind) and drain on `session/flush` (awaited) and fiber dispose. A durable backend reads the log and reloads it into a live session; the metadata seam (`SessionHeader`, `session.header`) is what such a backend stores beside the log. -- Replay/fork: `ctx.sessions.create(id, { seed })` seeds a new session with an existing event log. The surface rebuilds deterministically from `surfaceOp` markers in the seeded events. The seed is validated to the SAME always-on invariants `append` enforces — contiguous seqs, JSON-serializable data, and required `surfaceOp` markers on surface-eligible events — so marker-less message events are rejected at construction rather than silently vanishing from `deriveMessages()`. Broader turn-enclosure checks stay in `dsh-invariants` and persistence repair. Ordinary live-session forks use `ctx.sessions.fork(source, boundary?, childSessionId?)`, where `boundary` is the inclusive source event seq to fork through. +- Replay/fork: `ctx.sessions.create(id, { seed })` seeds a new session with an existing event log. The surface rebuilds deterministically from `surfaceOp` markers in the seeded events. The constructor reads each seed entry once and uses the same one-pass lossless-JSON snapshot and exact surface-metadata shape checks as `append`, then enforces contiguous seqs and deep-freezes every accepted record; a stateful caller, exotic nested value, marker-less or malformed surface event, metadata on a non-surface event, or retained seed reference therefore cannot silently change the reconstructed history. Broader turn-enclosure checks stay in `dsh-invariants` and persistence repair. Ordinary live-session forks use `ctx.sessions.fork(source, boundary?, childSessionId?)`, where `boundary` is the inclusive source event seq to fork through. - Compaction: the `dsh-compact-basic` plugin appends a `user/message` with `surfaceOp: { op: 'replace', start, end }` to shadow old surface nodes behind a summary checkpoint. ### What is NOT here (TODO) diff --git a/packages/core/session/src/index.ts b/packages/core/session/src/index.ts index d3f4ca4890..51500e9e1b 100644 --- a/packages/core/session/src/index.ts +++ b/packages/core/session/src/index.ts @@ -14,12 +14,12 @@ import type { Scoped } from '@deepseek-ai/dsh-scope' import type { ContentBlock, Message, MessageSource } from '@deepseek-ai/dsh-llm' import { SESSION_FORMAT_VERSION, SessionId } from './types.ts' import type { CreateSessionOptions, EpochHeader, SessionEvent, SessionEventMap, SessionEventType, SessionHeader, SurfaceIntent, SurfaceEventType } from './types.ts' -import { isJsonValue } from './json.ts' +import { snapshotJsonValue } from './json.ts' import { SurfaceManager, isSurfaceEligibleType } from './surface.ts' import { foldRequestHeader } from './request-header.ts' export * from './types.ts' -export { isJsonValue } from './json.ts' +export { isJsonValue, snapshotJsonValue } from './json.ts' export type { JsonValue } from './json.ts' export { interruptedTurnClosers } from './repair.ts' export type { SurfaceNode } from './surface.ts' @@ -99,6 +99,160 @@ function renderTagged(tag: string, content: ContentBlock[], source: MessageSourc ] } +/** Reject a record shell that cloning or spreading would otherwise sanitize. */ +function assertPlainRecord(value: unknown, label: string): asserts value is Record { + if (value === null || typeof value !== 'object') { + throw new Error(`${label} is not a plain JSON record`) + } + const prototype = Object.getPrototypeOf(value) as unknown + if (prototype !== Object.prototype && prototype !== null) { + throw new Error(`${label} is not a plain JSON record`) + } +} + +/** Capture and validate the caller-owned fields that become a session header. */ +function snapshotSessionMeta(source: CreateSessionOptions['meta']): NonNullable { + if (source === undefined) return {} + assertPlainRecord(source, 'session metadata') + + // Read each accepted field exactly once. The metadata vocabulary is scalar, + // so this plain record is already detached from the caller; cloning the + // caller's shell first would erase a class prototype before validation. + const cwd = source.cwd + const parentSession = source.parentSession + const createdAt = source.createdAt + const seedLength = source.seedLength + const accepted = { + ...cwd !== undefined ? { cwd } : {}, + ...parentSession !== undefined ? { parentSession } : {}, + ...createdAt !== undefined ? { createdAt } : {}, + ...seedLength !== undefined ? { seedLength } : {}, + } + const snapshot = snapshotJsonValue(accepted) + if (snapshot === undefined) throw new Error('session metadata is not losslessly JSON-serializable') + if (snapshot.cwd !== undefined) { + if (typeof snapshot.cwd !== 'string') throw new Error('session cwd must be a string') + if (!isAbsolute(snapshot.cwd)) { + throw new Error(`session cwd must be an absolute path, got "${snapshot.cwd}"`) + } + } + if (snapshot.parentSession !== undefined && typeof snapshot.parentSession !== 'string') { + throw new Error('session parentSession must be a string') + } + if (snapshot.createdAt !== undefined + && (typeof snapshot.createdAt !== 'number' || !Number.isFinite(snapshot.createdAt))) { + throw new Error('session createdAt must be a finite number') + } + if (snapshot.seedLength !== undefined + && (typeof snapshot.seedLength !== 'number' || !Number.isSafeInteger(snapshot.seedLength) || snapshot.seedLength < 0)) { + throw new Error('session seedLength must be a non-negative safe integer') + } + return snapshot +} + +/** Detach, validate, and freeze the creation metadata published by a session. */ +function snapshotSessionHeader(id: SessionId, source?: SessionHeader): SessionHeader { + const input: SessionHeader = source === undefined + ? { version: SESSION_FORMAT_VERSION, id, createdAt: Date.now() } + : source + assertPlainRecord(input, 'session header') + + // Capture each property once before validation. A stateful accessor therefore + // cannot present one identity or storage location to a check and publish a + // different one afterward. + const version = input.version + const headerId = input.id + const createdAt = input.createdAt + const cwd = input.cwd + const parentSession = input.parentSession + const seedLength = input.seedLength + const accepted = { + version, + id: headerId, + createdAt, + ...cwd !== undefined ? { cwd } : {}, + ...parentSession !== undefined ? { parentSession } : {}, + ...seedLength !== undefined ? { seedLength } : {}, + } + const snapshot = snapshotJsonValue(accepted) + if (snapshot === undefined) throw new Error('session header is not losslessly JSON-serializable') + if (snapshot.version !== SESSION_FORMAT_VERSION) { + throw new Error(`session header version must be ${SESSION_FORMAT_VERSION}, got ${String(snapshot.version)}`) + } + if (snapshot.id !== id) { + throw new Error(`session header id "${String(snapshot.id)}" does not match session id "${id}"`) + } + if (typeof snapshot.createdAt !== 'number' || !Number.isFinite(snapshot.createdAt)) { + throw new Error('session header createdAt must be a finite number') + } + if (snapshot.cwd !== undefined) { + if (typeof snapshot.cwd !== 'string') throw new Error('session header cwd must be a string') + if (!isAbsolute(snapshot.cwd)) { + throw new Error(`session header cwd must be an absolute path, got "${snapshot.cwd}"`) + } + } + if (snapshot.parentSession !== undefined && typeof snapshot.parentSession !== 'string') { + throw new Error('session header parentSession must be a string') + } + if (snapshot.seedLength !== undefined + && (typeof snapshot.seedLength !== 'number' || !Number.isSafeInteger(snapshot.seedLength) || snapshot.seedLength < 0)) { + throw new Error('session header seedLength must be a non-negative safe integer') + } + return deepFreeze(snapshot) +} + +/** Validate the runtime shape of surface metadata after its JSON snapshot. */ +function assertSurfaceMetadataShape( + type: string, + surfaceOp: unknown, + sourceEventSeqs: unknown, +): void { + const eligible = isSurfaceEligibleType(type) + if (!eligible) { + if (surfaceOp !== undefined || sourceEventSeqs !== undefined) { + throw new Error(`session event "${type}" is not surface-eligible and cannot carry surface metadata`) + } + return + } + if (surfaceOp === undefined) { + throw new Error(`session event "${type}" is surface-eligible and requires a surfaceOp marker`) + } + if (surfaceOp !== 'append') { + if (surfaceOp === null || typeof surfaceOp !== 'object' || Array.isArray(surfaceOp)) { + throw new Error(`session event "${type}" carries an invalid surfaceOp`) + } + const op = surfaceOp as Record + const keys = Object.keys(op) + if (keys.length !== 3 || !Object.hasOwn(op, 'op') || !Object.hasOwn(op, 'start') || !Object.hasOwn(op, 'end') + || op['op'] !== 'replace' + || typeof op['start'] !== 'number' || !Number.isSafeInteger(op['start']) || op['start'] < 0 + || typeof op['end'] !== 'number' || !Number.isSafeInteger(op['end']) || op['end'] < 0) { + throw new Error(`session event "${type}" carries an invalid replace surfaceOp`) + } + } + if (sourceEventSeqs !== undefined) { + if (!Array.isArray(sourceEventSeqs) + || sourceEventSeqs.some(seq => typeof seq !== 'number' || !Number.isSafeInteger(seq) || seq < 0)) { + throw new Error(`session event "${type}" sourceEventSeqs must contain non-negative safe integers`) + } + } +} + +/** Validate the fixed event envelope after one-pass JSON materialization. */ +function assertSessionEventEnvelope(value: Record, index: number): asserts value is SessionEvent { + const event = value + const allowed = new Set(['type', 'seq', 'time', 'data', 'surfaceOp', 'sourceEventSeqs']) + if (Object.keys(event).some(key => !allowed.has(key)) + || !Object.hasOwn(event, 'type') || typeof event['type'] !== 'string' + || !Object.hasOwn(event, 'seq') || typeof event['seq'] !== 'number' + || !Number.isSafeInteger(event['seq']) || event['seq'] < 0 + || !Object.hasOwn(event, 'time') || typeof event['time'] !== 'number' + || !Number.isSafeInteger(event['time']) || event['time'] < 0 + || !Object.hasOwn(event, 'data')) { + throw new Error(`seed event at index ${index} has an invalid event envelope`) + } +} + /** * An event-sourced session: an append-only log of {@link SessionEvent}s. * @@ -126,10 +280,10 @@ export class Session { } /** - * Immutable creation metadata (format version, cwd, lineage, seed boundary). - * Supplied by the store via `ctx.sessions.create()`. When a `Session` is - * constructed bare (tests, ad-hoc replay), a minimal header is synthesized - * (stamped with the current {@link SESSION_FORMAT_VERSION}) so + * Detached, deep-frozen creation metadata (format version, cwd, lineage, + * seed boundary). Supplied by the store via `ctx.sessions.create()`. When a + * `Session` is constructed bare (tests, ad-hoc replay), a minimal header is + * synthesized (stamped with the current {@link SESSION_FORMAT_VERSION}) so * `session.header` is always present. Kept out of the event log — it is a * storage concern, not replayable conversation state. */ @@ -144,12 +298,27 @@ export class Session { // `seq = log.length` contract the whole system relies on). Without this, // a bad seed would surface only later as a backend rejection or a silent // divergence between the live log and disk. - seed.forEach((event, index) => { - if (event.seq !== index) { - throw new Error(`seed event at index ${index} has seq ${event.seq} (expected ${index}); seed must be contiguous from 0`) + this.log = Array.from(seed, (source, index) => { + // Spreading would erase a class instance's prototype. Reject an exotic + // event shell before that normalization can turn it into an apparently + // valid plain record; field values are still captured by the one spread + // below, so their accessors are not read twice. + assertPlainRecord(source, `seed event at index ${index}`) + // Read every enumerable event field once. Validation and snapshot + // construction must consume this same captured record: a stateful seed + // index or event getter cannot present one record to the checks and + // another to the durable log. + const event = { ...source } + // Materialize the complete accepted record in one recursive pass. A + // validate-then-structuredClone sequence would reread nested getters and + // could sanitize a class instance returned only to the clone. + const snapshot = snapshotJsonValue(event) + if (snapshot === undefined) { + throw new Error(`seed event at index ${index} is not losslessly JSON-serializable`) } - if (!isJsonValue(event.data)) { - throw new Error(`seed event "${event.type}" (seq ${event.seq}) carries non-JSON-serializable data`) + assertSessionEventEnvelope(snapshot, index) + if (snapshot.seq !== index) { + throw new Error(`seed event at index ${index} has seq ${snapshot.seq} (expected ${index}); seed must be contiguous from 0`) } // Surface-eligible events MUST carry a surfaceOp marker — the surface is // the sole source of derived history, so a marker-less message event @@ -157,30 +326,30 @@ export class Session { // this at compile time via its typed overload; a seed arrives as raw // SessionEvent[] (replay/fork/load), bypassing that, so re-check at // runtime here rather than silently resuming with empty history. - if (isSurfaceEligibleType(event.type) - && (event as SessionEvent).surfaceOp === undefined) { - throw new Error(`seed event "${event.type}" (seq ${event.seq}) is surface-eligible but carries no surfaceOp marker`) + const structural = snapshot as SessionEvent & { surfaceOp?: unknown; sourceEventSeqs?: unknown } + try { + assertSurfaceMetadataShape(snapshot.type, structural.surfaceOp, structural.sourceEventSeqs) + } catch (error: unknown) { + throw new Error(`invalid seed event at index ${index}: ${error instanceof Error ? error.message : 'invalid surface metadata'}`) } + return deepFreeze(snapshot) }) - // Deep-clone each seed event, NOT just the array: the seed events and - // their `data` are still owned by the caller (or the source session of a - // fork), so keeping the references would let a post-create mutation of the - // original rewrite this session's durable log — or reintroduce a - // non-JSON-serializable value AFTER the validation above. Snapshotting at - // the boundary makes `session.events` independent and keeps it equal to - // what was validated. Serializability is guaranteed by the check above, so - // structuredClone can never hit a non-cloneable value here. - this.log = seed.map(event => structuredClone(event)) } - this.header = header ?? { version: SESSION_FORMAT_VERSION, id, createdAt: Date.now() } + this.header = snapshotSessionHeader(id, header) } + /** Cached immutable public snapshot of the private append-only log. */ + private eventsSnapshot: readonly SessionEvent[] | undefined + /** - * The append-only event log, exposed live by reference (readonly-typed, not - * a snapshot): later appends are visible through the same array. + * An immutable snapshot of the append-only event log. The snapshot is reused + * until the next append; a previously returned array does not grow later. + * Events and their nested data are deep-frozen at acceptance, so neither a + * cast nor ordinary JavaScript can rewrite durable history. */ get events(): readonly SessionEvent[] { - return this.log + this.eventsSnapshot ??= Object.freeze([...this.log]) + return this.eventsSnapshot } /** The next event's sequence number — always the log length (the `seq = log.length` contiguity contract). */ @@ -205,23 +374,27 @@ export class Session { * @returns the logged event — its assigned `seq`/`time` plus the SNAPSHOT of * `data` that entered the log, so reading `event.data` back sees the logged * value, never the caller's still-mutable input. - * @throws if `data` is not losslessly JSON-serializable (BigInt, function, - * symbol, undefined, non-finite number, circular ref, or an exotic object - * like Map/Set/Date). The event log is the durable source of truth, so this - * invariant is enforced at the source — a bad event never enters the log, - * keeping `session.events` always equal to what a backend can persist. The - * throw surfaces at the buggy caller's append site, not asynchronously in a - * backend flush. + * @throws if `type` is not a string, or if `data` or surface metadata is not + * losslessly JSON-serializable + * (BigInt, function, symbol, undefined, negative zero, non-finite number, + * circular reference, sparse array, or an exotic object such as + * Map/Set/Date/class instance). One recursive pass reads, validates, and + * copies each nested value once, so a stateful getter cannot supply one value + * to validation and another to storage. The event log is the durable source + * of truth, so a bad event fails at the append site rather than later during + * a backend flush. */ append( type: T, data: SessionEventMap[T], ...opts: T extends SurfaceEventType ? [opts: SurfaceIntent] : [] ): SessionEvent { - if (!isJsonValue(data)) { - throw new Error(`session event "${type}" carries non-JSON-serializable data`) + if (typeof type !== 'string') { + throw new TypeError('session event type must be a string') } const surfaceOpts: SurfaceIntent | undefined = opts[0] + const sourceEventSeqs = surfaceOpts?.sourceEventSeqs + const surfaceOp = surfaceOpts?.surfaceOp // Surface-eligible events MUST carry a surfaceOp marker — the surface is the // sole source of derived history, so a marker-less message event would be // logged yet vanish from deriveMessages(). The typed `opts` overload makes @@ -230,41 +403,49 @@ export class Session { // events: `for (const e of log) append(e.type, e.data)`), the conditional // rest collapses to optional and the compiler stops enforcing it. Re-check // at runtime so that loophole can't silently drop history. - if (isSurfaceEligibleType(type) && surfaceOpts?.surfaceOp === undefined) { - throw new Error(`session event "${type}" is surface-eligible and requires a surfaceOp marker`) + const surfaceMetadata = { + ...sourceEventSeqs !== undefined ? { sourceEventSeqs } : {}, + ...surfaceOp !== undefined ? { surfaceOp } : {}, } - // Snapshot `data` into the log, NOT the caller's reference: the validation - // above proves it is JSON-serializable AT THIS MOMENT, but the caller still - // owns the object and could mutate it afterwards (before a persistence - // flush, or permanently in the in-memory history) — making `session.events` - // diverge from the value that passed validation, or reintroducing a - // non-serializable value. Cloning here keeps the log equal to what was - // validated. structuredClone is safe because serializability was just - // checked. The returned event carries the SAME snapshot, so a caller reading - // back `event.data` sees the logged value, not its own mutable input. + // The caller still owns the data and metadata objects and could mutate them + // after append. Materialize each accepted value exactly once while checking + // its JSON vocabulary, so the log cannot drift and a stateful getter cannot + // show one value to validation and another to a prototype-erasing clone. The + // returned event carries these SAME snapshots. // - // Surface metadata is snapshot separately: sourceEventSeqs (number[] — - // primitives, so array spread is a complete copy) and surfaceOp (a string - // primitive, or cloned if it's a replace object). + // Surface metadata accessors are read once into one plain record; the + // recursive snapshot then reads each nested value once as it copies it. // Build the event shape with conditional surface fields via spreading. // The result is cast through `unknown` because the conditional spreads // produce an intersection type that the assignability checker can't // narrow to a specific discriminated-union member when T is generic. - // This is a safe internal boundary: data was validated above, and - // surface metadata was snapshot from primitive/clone-safe values. + // This is a safe internal boundary: data and surface metadata are + // materialized below before the event enters the log. + const dataSnapshot = snapshotJsonValue(data) + if (dataSnapshot === undefined) { + throw new Error(`session event "${type}" carries non-JSON-serializable data`) + } + const surfaceMetadataSnapshot = snapshotJsonValue(surfaceMetadata) + if (surfaceMetadataSnapshot === undefined) { + throw new Error(`session event "${type}" carries non-JSON-serializable surface metadata`) + } + assertSurfaceMetadataShape( + type, + (surfaceMetadataSnapshot as { surfaceOp?: unknown }).surfaceOp, + (surfaceMetadataSnapshot as { sourceEventSeqs?: unknown }).sourceEventSeqs, + ) const event = { type, seq: this.log.length, time: Date.now(), - data: structuredClone(data), - ...surfaceOpts?.sourceEventSeqs !== undefined ? { sourceEventSeqs: [...surfaceOpts.sourceEventSeqs] } : {}, - ...surfaceOpts?.surfaceOp !== undefined ? { - surfaceOp: typeof surfaceOpts.surfaceOp === 'string' ? surfaceOpts.surfaceOp : structuredClone(surfaceOpts.surfaceOp), - } : {}, + data: dataSnapshot, + ...surfaceMetadataSnapshot, } as unknown as SessionEvent - this.log.push(event as unknown as SessionEvent) - this.onAppend?.(event as unknown as SessionEvent) - return event + const acceptedEvent = deepFreeze(event) + this.log.push(acceptedEvent as unknown as SessionEvent) + this.eventsSnapshot = undefined + this.onAppend?.(acceptedEvent as unknown as SessionEvent) + return acceptedEvent } /** Cached fold of the request-header events — see {@link requestHeader}. */ @@ -457,7 +638,8 @@ export class SessionStore extends Service { * @param id - the session id; omitted, the store mints `session-`. * @param options - seed events and/or creation metadata for the header. * @returns the live session, already entered and announced. - * @throws if a session with `id` already exists, or if `meta.cwd` is a + * @throws if a session with `id` already exists, metadata is not a plain + * lossless-JSON record with valid scalar fields, or `meta.cwd` is a * non-absolute path (storage backends key directories off it). */ create(id?: SessionId, options?: CreateSessionOptions): Session { @@ -485,25 +667,27 @@ export class SessionStore extends Service { * @param id - the session id; omitted, the store mints `session-`. * @param options - seed events and/or creation metadata for the header. * @returns the constructed session, NOT yet in the store. - * @throws if a session with `id` already exists, or if `meta.cwd` is a + * @throws if a session with `id` already exists, metadata is not a plain + * lossless-JSON record with valid scalar fields, or `meta.cwd` is a * non-absolute path. */ prepare(id?: SessionId, options?: CreateSessionOptions): Session { const sessionId = SessionId(id ?? `session-${++this.counter}`) if (this.store.has(sessionId)) throw new Error(`session "${sessionId}" already exists`) - const cwd = options?.meta?.cwd - if (cwd !== undefined && !isAbsolute(cwd)) { - throw new Error(`session cwd must be an absolute path, got "${cwd}"`) - } + const seed = options?.seed + const meta = snapshotSessionMeta(options?.meta) + const cwd = meta.cwd + const parentSession = meta.parentSession + const seedLength = meta.seedLength const header: SessionHeader = { version: SESSION_FORMAT_VERSION, id: sessionId, - createdAt: options?.meta?.createdAt ?? Date.now(), + createdAt: meta.createdAt ?? Date.now(), ...cwd !== undefined ? { cwd } : {}, - ...options?.meta?.parentSession !== undefined ? { parentSession: options.meta.parentSession } : {}, - ...options?.meta?.seedLength !== undefined ? { seedLength: options.meta.seedLength } : {}, + ...parentSession !== undefined ? { parentSession } : {}, + ...seedLength !== undefined ? { seedLength } : {}, } - return new Session(sessionId, options?.seed, header) + return new Session(sessionId, seed, header) } /** diff --git a/packages/core/session/src/json.ts b/packages/core/session/src/json.ts index 22303c6c61..2ec36087dd 100644 --- a/packages/core/session/src/json.ts +++ b/packages/core/session/src/json.ts @@ -1,45 +1,127 @@ /** - * JSON-serializability validation for session event data. + * Lossless-JSON validation and snapshot materialization for session data. * * The session event log is the durable source of truth (the event-sourcing / session-persistence RFCs): every * `event.data` must round-trip losslessly through JSON so any persistence * backend can store and reload it byte-identically. This invariant belongs to * the log itself — `Session.append` enforces it at the source, so a * non-serializable event never enters `session.events` and the live log can - * never diverge from what a backend can persist. Backends re-use the same - * predicate to validate their own `append(events)` entry point (replay/fork - * paths that do not go through a live `Session`). + * never diverge from what a backend can persist. Other public boundaries use + * {@link snapshotJsonValue} when they must validate and detach in one pass; + * {@link isJsonValue} remains the non-copying structural predicate. * * @module @deepseek-ai/dsh-session/json */ /** * A value that round-trips losslessly through JSON: `null`, a boolean, a finite - * number, a string, an array of such values, or a plain object whose values are - * such values. The static type companion to {@link isJsonValue} (which validates - * the same shape at runtime). Use it to type a payload that must survive - * session-log persistence and replay byte-identically — e.g. a tool's private - * presentation `meta`. + * number other than negative zero, a string, an array of such values, or a + * plain object whose values are such values. TypeScript cannot distinguish + * `-0` from `number`, so {@link isJsonValue} and {@link snapshotJsonValue} + * enforce that last numeric detail at runtime. Use this type for a payload that + * must survive session-log persistence and replay byte-identically — e.g. a + * tool's private presentation `meta`. */ export type JsonValue = null | boolean | number | string | JsonValue[] | { [key: string]: JsonValue } /** - * Whether `value` is losslessly JSON-serializable: only `null`, finite numbers, - * booleans, strings, plain arrays, and plain objects of such values. Rejects - * `BigInt`, function, symbol, `undefined`, non-finite numbers (`NaN`/`Infinity`, - * which `JSON.stringify` turns into `null`), and exotic objects (`Map`/`Set`/ - * `Date`/class instances) — anything `JSON.stringify` would drop, throw on, or - * convert lossily. Sparse arrays are rejected too: a hole serializes to `null`, - * so `[1, , 3]` would not round-trip. Detects circular references (which would - * throw) and reports them as non-serializable rather than propagating the throw. + * Materialize one detached lossless-JSON snapshot in a SINGLE recursive pass. + * Each array slot or own enumerable string-keyed object value is read exactly + * once, validated, and copied immediately. This is intentionally not + * `isJsonValue(value)` followed by `structuredClone(value)`: a stateful getter + * could return plain JSON to the check and an exotic class instance to the + * clone, whose prototype `structuredClone` would erase before a later check. * - * Scope — matches `JSON.stringify` exactly: only an object's OWN ENUMERABLE - * STRING-keyed properties are inspected (`Object.values`). Symbol-keyed and - * non-enumerable properties are NOT examined, because `JSON.stringify` likewise - * drops them — they never reach the durable form, so a non-serializable value - * hiding under a symbol/non-enumerable key cannot make the round-trip lossy. - * Getters are invoked during the check (again as `JSON.stringify` would), so the - * contract is for plain data records, not objects with side-effecting accessors. + * Accepts the same scalar/object vocabulary as {@link isJsonValue}: arrays use + * the ordinary `Array.prototype` (subclass instances are not plain JSON + * containers), while null-prototype objects are accepted and normalized to + * ordinary plain objects. Sparse arrays, cycles, negative zero, non-finite + * numbers, unsupported scalar types, and exotic object or array shells return + * `undefined`. A throwing getter is a caller failure and propagates unchanged. + * + * @param value - the candidate value to validate and detach. + * @returns the detached snapshot, or `undefined` when the value is not + * losslessly JSON-serializable. + */ +export function snapshotJsonValue(value: T): T | undefined { + const ancestors = new Set() + + const visit = (current: unknown): JsonValue | undefined => { + if (current === null) return null + switch (typeof current) { + case 'boolean': + case 'string': + return current + case 'number': + return Number.isFinite(current) && !Object.is(current, -0) ? current : undefined + case 'bigint': + case 'function': + case 'symbol': + case 'undefined': + return undefined + case 'object': + break + } + + if (ancestors.has(current)) return undefined + ancestors.add(current) + try { + if (Array.isArray(current)) { + if (Object.getPrototypeOf(current) !== Array.prototype) return undefined + const length = current.length + const snapshot: JsonValue[] = [] + for (let index = 0; index < length; index++) { + if (!Object.prototype.hasOwnProperty.call(current, index)) return undefined + const item = visit(current[index]) + if (item === undefined) return undefined + snapshot.push(item) + } + return snapshot + } + + const prototype = Object.getPrototypeOf(current) as unknown + if (prototype !== Object.prototype && prototype !== null) return undefined + const snapshot: { [key: string]: JsonValue } = {} + for (const key of Object.keys(current)) { + const item = visit((current as Record)[key]) + if (item === undefined) return undefined + // Define the key as data so a JSON field literally named "__proto__" + // cannot mutate the snapshot's prototype through ordinary assignment. + Object.defineProperty(snapshot, key, { + value: item, + enumerable: true, + configurable: true, + writable: true, + }) + } + return snapshot + } finally { + ancestors.delete(current) + } + } + + return visit(value) as T | undefined +} + +/** + * Whether `value` is losslessly JSON-serializable: only `null`, finite numbers + * other than negative zero, booleans, strings, plain arrays, and plain objects + * of such values. Rejects `BigInt`, function, symbol, `undefined`, `-0` (which + * JSON rewrites to `0`), non-finite numbers (`NaN`/`Infinity`, which JSON turns + * into `null`), and exotic objects (`Map`/`Set`/`Date`/class instances) — + * anything `JSON.stringify` would drop, throw on, or convert lossily. Sparse + * arrays are rejected too: a hole serializes to `null`, so `[1, , 3]` would not + * round-trip. Detects circular references (which would throw) and reports them + * as non-serializable rather than propagating the throw. + * + * Scope — this is a structural plain-data predicate, not an invocation of + * `JSON.stringify`: only an object's OWN ENUMERABLE STRING-keyed properties are + * inspected (`Object.values`). Symbol-keyed and non-enumerable properties are + * omitted from the durable data surface. Custom `toJSON` behavior is not + * executed; boundaries that persist a value first materialize a new plain-data + * record with {@link snapshotJsonValue}. Getters are invoked during this check, + * so callers that need a stable detached value use that one-pass materializer + * instead of checking and then rereading a side-effecting record. * @param value - the candidate event data to test. * @param seen - objects on the current descent path, for circular-reference * detection; the recursion threads it — callers omit it. @@ -52,7 +134,7 @@ export function isJsonValue(value: unknown, seen: Set = new Set()): bool case 'string': return true case 'number': - return Number.isFinite(value) + return Number.isFinite(value) && !Object.is(value, -0) case 'bigint': case 'function': case 'symbol': @@ -66,6 +148,7 @@ export function isJsonValue(value: unknown, seen: Set = new Set()): bool seen.add(value) try { if (Array.isArray(value)) { + if (Object.getPrototypeOf(value) !== Array.prototype) return false // Reject sparse arrays: a hole is skipped by `every`/`forEach` but // JSON.stringify writes it as `null`, so `[1, , 3]` would round-trip // lossily. Require every index 0..length-1 to be an OWN property. diff --git a/packages/core/session/src/types.ts b/packages/core/session/src/types.ts index ca6779e1dc..e564929ae0 100644 --- a/packages/core/session/src/types.ts +++ b/packages/core/session/src/types.ts @@ -32,6 +32,9 @@ export const SESSION_FORMAT_VERSION = 0 /** * Immutable session metadata — written once at creation and never rewritten. + * {@link Session} enforces that contract at runtime: it validates and detaches + * the accepted scalar fields, requires this header's id to match the session + * id, and deep-freezes the published record. * * Kept SEPARATE from the event log deliberately: format-version, cwd, and * lineage are storage concerns, not conversation events, so they stay out of @@ -75,7 +78,8 @@ export interface CreateSessionOptions { /** Events to seed the new session with (replay/fork). */ seed?: SessionEvent[] /** - * Creation metadata. The store fills in `version`/`id` and defaults + * Creation metadata. The store reads this plain record and each accepted + * field once, then fills in `version`/`id` and defaults * `createdAt` to now; the caller supplies the storage-level fields (validated * absolute `cwd`, `parentSession` lineage, the seed boundary `seedLength`, and * — when reconstructing a persisted session — the original `createdAt` to diff --git a/packages/core/session/tests/fork.spec.ts b/packages/core/session/tests/fork.spec.ts index 25328294cf..af143ea5ee 100644 --- a/packages/core/session/tests/fork.spec.ts +++ b/packages/core/session/tests/fork.spec.ts @@ -60,7 +60,7 @@ describe('SessionStore.fork', () => { }) }) - it('forks the latest completed boundary by default and deep-clones seed events', async () => { + it('forks the latest completed boundary by default into detached frozen seed events', async () => { const { ctx, sessions } = await setup() const source = ctx.sessions.create(SessionId('parent'), { meta: { cwd: '/workspace' } }) appendClosedTurn(source, 1, 'hello') @@ -70,8 +70,11 @@ describe('SessionStore.fork', () => { expect(child.events).toEqual(source.events) expect(child.events).not.toBe(source.events) expect(child.events[1]).not.toBe(source.events[1]) - firstUserMessage(child.events).data.content[0] = { type: 'text', text: 'child mutation' } + expect(() => { + firstUserMessage(child.events).data.content[0] = { type: 'text', text: 'child mutation' } + }).toThrow(TypeError) expect(firstUserMessage(source.events).data.content).toEqual([{ type: 'text', text: 'hello' }]) + expect(firstUserMessage(child.events).data.content).toEqual([{ type: 'text', text: 'hello' }]) expect(child.header).toMatchObject({ id: SessionId('child'), cwd: '/workspace', diff --git a/packages/core/session/tests/json.spec.ts b/packages/core/session/tests/json.spec.ts new file mode 100644 index 0000000000..4fb06fd744 --- /dev/null +++ b/packages/core/session/tests/json.spec.ts @@ -0,0 +1,152 @@ +import { describe, expect, it } from 'vitest' +import { isJsonValue, snapshotJsonValue } from '@deepseek-ai/dsh-session' + +describe('snapshotJsonValue', () => { + it('copies the complete JSON scalar vocabulary and rejects unsupported scalars', () => { + const unsupportedFunction = (): void => {} + + expect(snapshotJsonValue(null)).toBeNull() + expect(snapshotJsonValue(true)).toBe(true) + expect(snapshotJsonValue('text')).toBe('text') + expect(snapshotJsonValue(1.25)).toBe(1.25) + expect(snapshotJsonValue(-0)).toBeUndefined() + expect(isJsonValue(-0)).toBe(false) + expect(snapshotJsonValue(Number.NaN)).toBeUndefined() + expect(snapshotJsonValue(Number.POSITIVE_INFINITY)).toBeUndefined() + expect(snapshotJsonValue(1n)).toBeUndefined() + expect(snapshotJsonValue(unsupportedFunction)).toBeUndefined() + expect(snapshotJsonValue(Symbol('value'))).toBeUndefined() + const unsupportedUndefined: unknown = undefined + expect(snapshotJsonValue(unsupportedUndefined)).toBeUndefined() + }) + + it('recursively detaches dense arrays and plain or null-prototype objects', () => { + const shared = { value: 1 } + const nullPrototype = Object.assign(Object.create(null) as Record, { shared }) + const source = { list: [nullPrototype, shared], alias: shared } + + const snapshot = snapshotJsonValue(source)! + shared.value = 2 + + expect(snapshot).toEqual({ list: [{ shared: { value: 1 } }, { value: 1 }], alias: { value: 1 } }) + expect(snapshot).not.toBe(source) + expect(snapshot.list).not.toBe(source.list) + expect(snapshot.alias).not.toBe(shared) + expect(snapshot.list[0]).not.toBe(nullPrototype) + expect(Object.getPrototypeOf(snapshot.list[0])).toBe(Object.prototype) + }) + + it('reads each object value and array slot once while materializing', () => { + class Exotic { + readonly accepted = false + } + let objectReads = 0 + let arrayReads = 0 + const nested = Object.defineProperty({}, 'value', { + enumerable: true, + get: () => { + objectReads += 1 + return objectReads === 1 ? { accepted: true } : new Exotic() + }, + }) + const array = new Array(1) + Object.defineProperty(array, 0, { + enumerable: true, + get: () => { + arrayReads += 1 + return arrayReads === 1 ? nested : new Exotic() + }, + }) + + expect(snapshotJsonValue(array)).toEqual([{ value: { accepted: true } }]) + expect(objectReads).toBe(1) + expect(arrayReads).toBe(1) + }) + + it('rejects exotic containers, sparse arrays, cycles, and invalid children', () => { + class ExoticObject { + readonly value = 1 + } + class ExoticArray extends Array {} + const sparse = new Array(1) + const cyclic: Record = {} + cyclic.self = cyclic + + expect(snapshotJsonValue(new ExoticObject())).toBeUndefined() + expect(snapshotJsonValue(new Map([['value', 1]]))).toBeUndefined() + expect(snapshotJsonValue(new ExoticArray(1))).toBeUndefined() + expect(snapshotJsonValue(sparse)).toBeUndefined() + expect(snapshotJsonValue(cyclic)).toBeUndefined() + expect(snapshotJsonValue([undefined])).toBeUndefined() + expect(snapshotJsonValue({ value: undefined })).toBeUndefined() + }) + + it('preserves a literal __proto__ JSON key without changing the snapshot prototype', () => { + const source = Object.create(null) as Record + source.__proto__ = { safe: true } + + const snapshot = snapshotJsonValue(source)! + + expect(Object.getPrototypeOf(snapshot)).toBe(Object.prototype) + expect(Object.prototype.hasOwnProperty.call(snapshot, '__proto__')).toBe(true) + expect(snapshot.__proto__).toEqual({ safe: true }) + }) + + it('propagates a throwing getter after reading it once', () => { + const failure = new Error('getter failed') + let reads = 0 + const source = Object.defineProperty({}, 'value', { + enumerable: true, + get: () => { + reads += 1 + throw failure + }, + }) + + expect(() => snapshotJsonValue(source)).toThrow(failure) + expect(reads).toBe(1) + }) +}) + +describe('isJsonValue', () => { + it('recognizes supported scalars and rejects every lossy scalar case', () => { + const unsupportedFunction = (): void => {} + const unsupportedUndefined: unknown = undefined + + expect(isJsonValue(null)).toBe(true) + expect(isJsonValue(false)).toBe(true) + expect(isJsonValue('text')).toBe(true) + expect(isJsonValue(1.25)).toBe(true) + expect(isJsonValue(-0)).toBe(false) + expect(isJsonValue(Number.NaN)).toBe(false) + expect(isJsonValue(1n)).toBe(false) + expect(isJsonValue(unsupportedFunction)).toBe(false) + expect(isJsonValue(Symbol('value'))).toBe(false) + expect(isJsonValue(unsupportedUndefined)).toBe(false) + }) + + it('accepts dense arrays and plain objects, including null-prototype records', () => { + const nullPrototype = Object.assign(Object.create(null) as Record, { value: true }) + + expect(isJsonValue([1, { nested: null }, nullPrototype])).toBe(true) + expect(isJsonValue({ value: [1, 2] })).toBe(true) + expect(isJsonValue(nullPrototype)).toBe(true) + }) + + it('rejects sparse arrays, invalid children, exotic objects, and cycles', () => { + class Exotic { + readonly value = 1 + } + class ExoticArray extends Array {} + const sparse = new Array(1) + const cyclic: Record = {} + cyclic.self = cyclic + + expect(isJsonValue(sparse)).toBe(false) + expect(isJsonValue(new ExoticArray(1))).toBe(false) + expect(isJsonValue([undefined])).toBe(false) + expect(isJsonValue({ value: undefined })).toBe(false) + expect(isJsonValue(new Exotic())).toBe(false) + expect(isJsonValue(cyclic)).toBe(false) + }) +}) diff --git a/packages/core/session/tests/session.spec.ts b/packages/core/session/tests/session.spec.ts index f63353af9b..f7037609e6 100644 --- a/packages/core/session/tests/session.spec.ts +++ b/packages/core/session/tests/session.spec.ts @@ -1,8 +1,8 @@ -import { describe, expect, it } from 'vitest' +import { describe, expect, it, vi } from 'vitest' import { Context } from 'cordis' import { CallId } from '@deepseek-ai/dsh-llm' import SessionStore, { SESSION_FORMAT_VERSION, Session, SessionEvent, SessionId } from '@deepseek-ai/dsh-session' -import type { SessionEventType, TodoItem } from '@deepseek-ai/dsh-session' +import type { CreateSessionOptions, SessionEventType, SessionHeader, TodoItem } from '@deepseek-ai/dsh-session' describe('Session', () => { it('derives message history from the event log', () => { @@ -129,6 +129,16 @@ describe('Session', () => { expect(session.events).toHaveLength(0) }) + it('rejects a non-string event type without retaining or freezing caller data', () => { + const session = new Session(SessionId('invalid-event-type')) + const type = { tag: 'caller-owned' } + const appendRaw = session.append.bind(session) as unknown as (type: unknown, data: unknown) => SessionEvent + + expect(() => appendRaw(type, {})).toThrow(/event type must be a string/) + expect(Object.isFrozen(type)).toBe(false) + expect(session.events).toEqual([]) + }) + it('rejects a surface-eligible append with no surfaceOp marker (runtime guard for the union-widening loophole)', () => { const session = new Session(SessionId('s5b')) session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) @@ -156,7 +166,7 @@ describe('Session', () => { const badSeed = [ { type: 'user/message' as const, seq: 0, time: 1, data: { content: [{ type: 'text' as const, text: 'x' }], source: { kind: 'user' as const }, bad: 1n } }, ] as unknown as SessionEvent[] - expect(() => new Session(SessionId('seed-bad'), badSeed)).toThrow(/non-JSON-serializable/) + expect(() => new Session(SessionId('seed-bad'), badSeed)).toThrow(/losslessly JSON-serializable/) }) it('validates seed events: rejects a non-contiguous seq', () => { @@ -177,7 +187,7 @@ describe('Session', () => { { type: 'user/message' as const, seq: 1, time: 2, data: { content: [{ type: 'text' as const, text: 'hi' }], source: { kind: 'user' as const } } }, { type: 'turn/end' as const, seq: 2, time: 3, data: { turn: 1, reason: { kind: 'completed' as const } } }, ] as SessionEvent[] - expect(() => new Session(SessionId('seed-no-marker'), markerlessSeed)).toThrow(/surface-eligible but carries no surfaceOp/) + expect(() => new Session(SessionId('seed-no-marker'), markerlessSeed)).toThrow(/requires a surfaceOp marker/) }) it('accepts a well-formed contiguous serializable seed', () => { @@ -190,6 +200,151 @@ describe('Session', () => { expect(session.events).toHaveLength(3) }) + it('reads each seed array entry once so validation and storage use the same event', () => { + const accepted = { + type: 'turn/start' as const, + seq: 0, + time: 1, + data: { turn: 1, trigger: { kind: 'message' as const, source: { kind: 'user' as const } } }, + } + const drifted = { ...accepted, seq: 99, data: { invalid: 1n } } + let reads = 0 + const seed = new Array(1) + Object.defineProperty(seed, 0, { + enumerable: true, + get: () => { + reads += 1 + return reads === 1 ? accepted : drifted + }, + }) + + const session = new Session(SessionId('seed-entry-snapshot'), seed) + + expect(reads).toBe(1) + expect(session.events).toEqual([accepted]) + }) + + it('reads a nested seed-data getter once and stores its first JSON value', () => { + let reads = 0 + const data = Object.defineProperty({}, 'value', { + enumerable: true, + get: () => { + reads += 1 + return reads === 1 ? 'accepted' : 1n + }, + }) + const seed = [{ type: 'test/unstable', seq: 0, time: 1, data }] as unknown as SessionEvent[] + + const session = new Session(SessionId('seed-nested-drift'), seed) + + expect(reads).toBe(1) + expect(session.events[0]!.data).toEqual({ value: 'accepted' }) + }) + + it('rejects non-JSON surface metadata in a seed event', () => { + const seed = [{ + type: 'user/message', + seq: 0, + time: 1, + data: { content: [{ type: 'text', text: 'hello' }], source: { kind: 'user' } }, + surfaceOp: { op: 'replace', start: 1n, end: 2 }, + }] as unknown as SessionEvent[] + + expect(() => new Session(SessionId('seed-bad-metadata'), seed)) + .toThrow(/losslessly JSON-serializable/) + }) + + it('rejects exotic seed metadata before cloning can erase its prototype', () => { + class ReplaceOp { + readonly op = 'replace' as const + readonly start = 0 + readonly end = 0 + } + const seed = [{ + type: 'user/message', + seq: 0, + time: 1, + data: { content: [{ type: 'text', text: 'hello' }], source: { kind: 'user' } }, + surfaceOp: new ReplaceOp(), + }] as unknown as SessionEvent[] + + expect(() => new Session(SessionId('seed-exotic-metadata'), seed)) + .toThrow(/losslessly JSON-serializable/) + }) + + it('rejects an exotic seed event shell before spreading erases its prototype', () => { + class SeedEvent { + readonly type = 'turn/start' as const + readonly seq = 0 + readonly time = 1 + readonly data = { turn: 1, trigger: { kind: 'message' as const, source: { kind: 'user' as const } } } + } + const seed: SessionEvent[] = [new SeedEvent()] + + expect(() => new Session(SessionId('seed-exotic-shell'), seed)) + .toThrow(/not a plain JSON record/) + }) + + it('accepts a null-prototype seed event shell as a plain JSON record', () => { + const event = Object.assign(Object.create(null) as Record, { + type: 'turn/start' as const, + seq: 0, + time: 1, + data: { turn: 1, trigger: { kind: 'message' as const, source: { kind: 'user' as const } } }, + }) as unknown as SessionEvent + + const session = new Session(SessionId('seed-null-prototype'), [event]) + + expect(session.events).toEqual([{ ...event }]) + }) + + it('reads a nested seed-metadata getter once and stores its first JSON value', () => { + let reads = 0 + const surfaceOp = Object.defineProperty({ op: 'replace', end: 0 }, 'start', { + enumerable: true, + get: () => { + reads += 1 + return reads === 1 ? 0 : 1n + }, + }) + const seed = [{ + type: 'user/message', + seq: 0, + time: 1, + data: { content: [{ type: 'text', text: 'hello' }], source: { kind: 'user' } }, + surfaceOp, + }] as unknown as SessionEvent[] + + const session = new Session(SessionId('seed-unstable-metadata'), seed) + const event = session.events[0]! + if (event.type !== 'user/message') throw new Error('test fixture must remain a user/message') + + expect(reads).toBe(1) + expect(event.surfaceOp).toEqual({ op: 'replace', start: 0, end: 0 }) + }) + + it('adds seed context when surface validation throws a non-Error value', () => { + const originalHasOwn = Object.hasOwn + const hasOwn = vi.spyOn(Object, 'hasOwn').mockImplementation((object: object, property: PropertyKey): boolean => { + if ((object as Record)['op'] === 'replace') throw 'validator failed' + return originalHasOwn(object, property) + }) + const seed = [{ + type: 'user/message', + seq: 0, + time: 1, + data: { content: [{ type: 'text', text: 'hello' }], source: { kind: 'user' } }, + surfaceOp: { op: 'replace', start: 0, end: 0 }, + }] as unknown as SessionEvent[] + + try { + expect(() => new Session(SessionId('seed-non-error-metadata-failure'), seed)) + .toThrow('invalid seed event at index 0: invalid surface metadata') + } finally { + hasOwn.mockRestore() + } + }) + it('snapshots the seed: mutating the original after construction does not affect session.events', () => { const seed = [ { type: 'turn/start' as const, seq: 0, time: 1, data: { turn: 1, trigger: { kind: 'message' as const, source: { kind: 'user' as const } } } }, @@ -222,6 +377,304 @@ describe('Session', () => { // The returned event carries the same snapshot, not the caller's input. expect((event.data.content[0] as { text: string }).text).toBe('original') }) + + it('reads a nested append-data getter once and stores its first JSON value', () => { + const session = new Session(SessionId('append-nested-drift')) + let reads = 0 + const data = Object.defineProperty({}, 'value', { + enumerable: true, + get: () => { + reads += 1 + return reads === 1 ? 'accepted' : 1n + }, + }) + + const event = session.append('todo/write', data as never) + + expect(reads).toBe(1) + expect(event.data).toEqual({ value: 'accepted' }) + expect(session.events).toEqual([event]) + }) + + it('reads surface metadata accessors once so a validated marker is logged', () => { + const session = new Session(SessionId('surface-intent-snapshot')) + let reads = 0 + const intent = { + get surfaceOp(): 'append' | undefined { + reads += 1 + return reads === 1 ? 'append' : undefined + }, + } + + const event = session.append( + 'user/message', + { content: [{ type: 'text', text: 'hello' }], source: { kind: 'user' } }, + intent as { surfaceOp: 'append' }, + ) + + expect(reads).toBe(1) + expect(event.surfaceOp).toBe('append') + }) + + it('rejects non-JSON surface metadata before appending the event', () => { + const session = new Session(SessionId('append-bad-metadata')) + + expect(() => session.append( + 'user/message', + { content: [{ type: 'text', text: 'hello' }], source: { kind: 'user' } }, + { surfaceOp: { op: 'replace', start: 1n, end: 2 } } as never, + )).toThrow(/non-JSON-serializable surface metadata/) + expect(session.events).toEqual([]) + }) + + it('rejects exotic surface metadata before cloning can erase its prototype', () => { + class ReplaceOp { + readonly op = 'replace' as const + readonly start = 0 + readonly end = 0 + } + const session = new Session(SessionId('append-exotic-metadata')) + + expect(() => session.append( + 'user/message', + { content: [{ type: 'text', text: 'hello' }], source: { kind: 'user' } }, + { surfaceOp: new ReplaceOp() }, + )).toThrow(/non-JSON-serializable surface metadata/) + expect(session.events).toEqual([]) + }) + + it('reads a nested append-metadata getter once and stores its first JSON value', () => { + const session = new Session(SessionId('append-unstable-metadata')) + let reads = 0 + const surfaceOp = Object.defineProperty({ op: 'replace', end: 0 }, 'start', { + enumerable: true, + get: () => { + reads += 1 + return reads === 1 ? 0 : 1n + }, + }) + + const event = session.append( + 'user/message', + { content: [{ type: 'text', text: 'hello' }], source: { kind: 'user' } }, + { surfaceOp } as never, + ) + + expect(reads).toBe(1) + expect(event.surfaceOp).toEqual({ op: 'replace', start: 0, end: 0 }) + expect(session.events).toEqual([event]) + }) + + it('rejects invalid plain surface metadata shapes at append', () => { + const session = new Session(SessionId('append-invalid-surface-shape')) + const appendRaw = session.append.bind(session) as unknown as ( + type: SessionEventType, + data: unknown, + opts?: unknown, + ) => SessionEvent + const data = { content: [{ type: 'text', text: 'hello' }], source: { kind: 'user' } } + + expect(() => appendRaw('user/message', data, { surfaceOp: 'invalid' })) + .toThrow(/invalid surfaceOp/) + expect(() => appendRaw('user/message', data, { + surfaceOp: { op: 'replace', start: -1, end: 0 }, + })).toThrow(/invalid replace surfaceOp/) + expect(() => appendRaw('user/message', data, { + surfaceOp: 'append', + sourceEventSeqs: [0, -1], + })).toThrow(/non-negative safe integers/) + expect(session.events).toEqual([]) + }) + + it('rejects surface metadata on non-surface append and seed events', () => { + const session = new Session(SessionId('non-surface-metadata')) + const appendRaw = session.append.bind(session) as unknown as ( + type: SessionEventType, + data: unknown, + opts?: unknown, + ) => SessionEvent + + expect(() => appendRaw( + 'turn/start', + { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }, + { surfaceOp: 'append' }, + )).toThrow(/not surface-eligible and cannot carry surface metadata/) + expect(() => new Session(SessionId('non-surface-metadata-seed'), [{ + type: 'turn/start', + seq: 0, + time: 1, + data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }, + surfaceOp: 'append', + } as unknown as SessionEvent])).toThrow(/invalid seed event.*not surface-eligible/) + expect(session.events).toEqual([]) + }) + + it('deep-freezes seeded and appended event snapshots', () => { + const seeded = new Session(SessionId('seed-frozen'), [{ + type: 'turn/start', + seq: 0, + time: 1, + data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }, + }]) + const seededEvent = seeded.events[0]! + if (seededEvent.type !== 'turn/start') throw new Error('test fixture must remain a turn/start') + expect(Object.isFrozen(seededEvent)).toBe(true) + expect(Object.isFrozen(seededEvent.data)).toBe(true) + expect(Object.isFrozen(seededEvent.data.trigger)).toBe(true) + expect(() => { seededEvent.data.turn = 99 }).toThrow(TypeError) + + const appended = new Session(SessionId('append-frozen')) + const appendedEvent = appended.append('todo/write', { + todos: [{ content: 'first', status: 'pending' }], + }) + expect(Object.isFrozen(appendedEvent)).toBe(true) + expect(Object.isFrozen(appendedEvent.data)).toBe(true) + expect(Object.isFrozen(appendedEvent.data.todos)).toBe(true) + expect(Object.isFrozen(appendedEvent.data.todos[0])).toBe(true) + expect(() => { appendedEvent.data.todos[0]!.content = 'mutated' }).toThrow(TypeError) + }) + + it('returns cached frozen event-array snapshots that do not grow after append', () => { + const session = new Session(SessionId('events-snapshot')) + session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) + const before = session.events + const beforeEvent = before[0]! + if (beforeEvent.type !== 'turn/start') throw new Error('test fixture must remain a turn/start') + + expect(session.events).toBe(before) + expect(Object.isFrozen(before)).toBe(true) + expect(() => { (before as SessionEvent[]).push(beforeEvent) }).toThrow(TypeError) + expect(() => { beforeEvent.data.turn = 99 }).toThrow(TypeError) + + session.append('turn/end', { turn: 1, reason: { kind: 'completed' } }) + const after = session.events + expect(before).toHaveLength(1) + expect(after).toHaveLength(2) + expect(after).not.toBe(before) + expect(session.events).toBe(after) + }) + + it('detaches and freezes an explicitly supplied session header', () => { + const input = { + version: SESSION_FORMAT_VERSION, + id: SessionId('header-owned'), + createdAt: 123, + cwd: '/accepted', + parentSession: SessionId('parent'), + seedLength: 2, + } + + const session = new Session(SessionId('header-owned'), undefined, input) + input.cwd = '/caller-mutated' + + expect(session.header).toEqual({ + version: SESSION_FORMAT_VERSION, + id: 'header-owned', + createdAt: 123, + cwd: '/accepted', + parentSession: 'parent', + seedLength: 2, + }) + expect(session.header).not.toBe(input) + expect(Object.isFrozen(session.header)).toBe(true) + expect(Reflect.set(session.header, 'cwd', '/published-mutated')).toBe(false) + expect(session.header.cwd).toBe('/accepted') + }) + + it('reads each supplied header field once before validation and publication', () => { + const reads = { version: 0, id: 0, createdAt: 0, cwd: 0, parentSession: 0, seedLength: 0 } + const header = { + get version() { reads.version += 1; return reads.version === 1 ? SESSION_FORMAT_VERSION : 99 }, + get id() { reads.id += 1; return reads.id === 1 ? SessionId('header-once') : SessionId('drifted') }, + get createdAt() { reads.createdAt += 1; return reads.createdAt === 1 ? 123 : Number.NaN }, + get cwd() { reads.cwd += 1; return reads.cwd === 1 ? '/accepted' : 'relative' }, + get parentSession() { reads.parentSession += 1; return reads.parentSession === 1 ? SessionId('parent') : 1n }, + get seedLength() { reads.seedLength += 1; return reads.seedLength === 1 ? 0 : 1n }, + } as unknown as SessionHeader + + const session = new Session(SessionId('header-once'), undefined, header) + + expect(reads).toEqual({ version: 1, id: 1, createdAt: 1, cwd: 1, parentSession: 1, seedLength: 1 }) + expect(session.header).toEqual({ + version: SESSION_FORMAT_VERSION, + id: 'header-once', + createdAt: 123, + cwd: '/accepted', + parentSession: 'parent', + seedLength: 0, + }) + }) + + it('rejects an exotic, non-JSON, or mismatched supplied header', () => { + class ExoticHeader implements SessionHeader { + readonly version = SESSION_FORMAT_VERSION + readonly id = SessionId('header-invalid') + readonly createdAt = 123 + } + + expect(() => new Session(SessionId('header-invalid'), undefined, new ExoticHeader())) + .toThrow(/not a plain JSON record/) + expect(() => new Session(SessionId('header-invalid'), undefined, { + version: SESSION_FORMAT_VERSION, + id: SessionId('header-invalid'), + createdAt: 123, + parentSession: 1n, + } as unknown as SessionHeader)).toThrow(/not losslessly JSON-serializable/) + expect(() => new Session(SessionId('header-invalid'), undefined, { + version: SESSION_FORMAT_VERSION, + id: SessionId('other'), + createdAt: 123, + })).toThrow(/does not match session id/) + }) + + it('rejects invalid scalar fields in an explicitly supplied header', () => { + const base = { + version: SESSION_FORMAT_VERSION, + id: SessionId('header-shape'), + createdAt: 123, + } + const cases: Array<{ header: unknown; error: RegExp }> = [ + { header: 1, error: /not a plain JSON record/ }, + { header: null, error: /not a plain JSON record/ }, + { header: { ...base, version: 1 }, error: /header version/ }, + { header: { ...base, createdAt: '123' }, error: /createdAt must be a finite number/ }, + { header: { ...base, cwd: 1 }, error: /header cwd must be a string/ }, + { header: { ...base, cwd: 'relative' }, error: /header cwd must be an absolute path/ }, + { header: { ...base, parentSession: 1 }, error: /header parentSession must be a string/ }, + { header: { ...base, seedLength: '1' }, error: /seedLength must be a non-negative safe integer/ }, + { header: { ...base, seedLength: 0.5 }, error: /seedLength must be a non-negative safe integer/ }, + { header: { ...base, seedLength: -1 }, error: /seedLength must be a non-negative safe integer/ }, + ] + + for (const { header, error } of cases) { + expect(() => new Session(SessionId('header-shape'), undefined, header as SessionHeader)).toThrow(error) + } + }) + + it('rejects seed records with invalid fixed-envelope fields', () => { + const base = { + type: 'turn/start', + seq: 0, + time: 1, + data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }, + } + const cases: unknown[] = [ + { ...base, extra: true }, + { ...base, type: 1 }, + { ...base, seq: '0' }, + { ...base, seq: 0.5 }, + { ...base, seq: -1 }, + { ...base, time: '1' }, + { ...base, time: 0.5 }, + { ...base, time: -1 }, + { type: base.type, seq: base.seq, time: base.time }, + ] + + for (const [index, event] of cases.entries()) { + expect(() => new Session(SessionId(`bad-envelope-${index}`), [event as SessionEvent])) + .toThrow(/invalid event envelope/) + } + }) }) @@ -317,6 +770,66 @@ describe('SessionStore', () => { }) }) + it('reads session options and each metadata field once in prepare()', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const reads = { seed: 0, meta: 0, cwd: 0, parentSession: 0, createdAt: 0, seedLength: 0 } + const meta = { + get cwd() { reads.cwd += 1; return reads.cwd === 1 ? '/accepted' : 'relative' }, + get parentSession() { reads.parentSession += 1; return reads.parentSession === 1 ? SessionId('parent') : 1n }, + get createdAt() { reads.createdAt += 1; return reads.createdAt === 1 ? 123 : Number.NaN }, + get seedLength() { reads.seedLength += 1; return reads.seedLength === 1 ? 0 : 1n }, + } + const options = { + get seed() { reads.seed += 1; return reads.seed === 1 ? undefined : [] }, + get meta() { reads.meta += 1; return reads.meta === 1 ? meta : undefined }, + } as unknown as CreateSessionOptions + + const session = ctx.sessions.prepare(SessionId('metadata-once'), options) + + expect(reads).toEqual({ seed: 1, meta: 1, cwd: 1, parentSession: 1, createdAt: 1, seedLength: 1 }) + expect(session.header).toEqual({ + version: SESSION_FORMAT_VERSION, + id: 'metadata-once', + createdAt: 123, + cwd: '/accepted', + parentSession: 'parent', + seedLength: 0, + }) + }) + + it('rejects exotic metadata before cloning can erase its prototype', async () => { + class ExoticMeta { + readonly cwd = '/accepted' + } + const ctx = new Context() + await ctx.plugin(SessionStore) + + expect(() => ctx.sessions.prepare(SessionId('exotic-meta'), { meta: new ExoticMeta() })) + .toThrow(/session metadata is not a plain JSON record/) + }) + + it('rejects non-JSON and invalid scalar session metadata', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const cases: Array<{ meta: unknown; error: RegExp }> = [ + { meta: 1, error: /metadata is not a plain JSON record/ }, + { meta: { parentSession: 1n }, error: /metadata is not losslessly JSON-serializable/ }, + { meta: { cwd: 1 }, error: /session cwd must be a string/ }, + { meta: { parentSession: 1 }, error: /parentSession must be a string/ }, + { meta: { createdAt: '123' }, error: /createdAt must be a finite number/ }, + { meta: { seedLength: '1' }, error: /seedLength must be a non-negative safe integer/ }, + { meta: { seedLength: 0.5 }, error: /seedLength must be a non-negative safe integer/ }, + { meta: { seedLength: -1 }, error: /seedLength must be a non-negative safe integer/ }, + ] + + for (const [index, { meta, error }] of cases.entries()) { + expect(() => ctx.sessions.prepare(SessionId(`bad-meta-${index}`), { + meta: meta as NonNullable, + })).toThrow(error) + } + }) + it('rejects a non-absolute meta.cwd', async () => { const ctx = new Context() await ctx.plugin(SessionStore) diff --git a/packages/core/system-prompt/README.md b/packages/core/system-prompt/README.md index d712cd4b5b..439ebebfc7 100644 --- a/packages/core/system-prompt/README.md +++ b/packages/core/system-prompt/README.md @@ -14,10 +14,10 @@ System prompt assembly registry. Plugins contribute ordered text sections, tool- ### Public API - `ctx.systemPrompt.section(section: PromptSection): () => Promise | void` Contribute a section. The registry snapshots `name`, `order`, and the text value/callback, so later caller-object mutation cannot rename a stored section. The layer is the CALLING context's scope: `agent.ctx` contributes to that agent alone, SHADOWING a same-named global section there (the per-agent persona mechanism — a scoped `deployment:persona`). Duplicate names within one layer throw, and a globally protected section name cannot be shadowed. Disposed with the calling fiber. -- `ctx.systemPrompt.tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void` Contribute tool schemas, evaluated at each assembly with that assembly's context. `ToolProviderResult` = `{ schemas, knownNames? }`: `schemas` is the post-restriction visible set for `context.scope`; `knownNames` (defaulting to the schemas' names) is the pre-restriction universe `toolOrder` validates against. A provider must not return a schema named `TOOL_ORDER_REST`. Scoped providers are consulted only for their scope's assemblies. Disposed with the calling fiber. +- `ctx.systemPrompt.tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void` Contribute tool schemas, evaluated at each assembly with that assembly's context. `ToolProviderResult` = `{ schemas, knownNames? }`: `schemas` is the post-restriction visible set for `context.scope`; `knownNames` (defaulting to the same captured schemas' names) is the pre-restriction universe `toolOrder` validates against. Assembly reads the result, each schema field, and the optional known-name list once before detaching them, rejects non-string schema names/descriptions or known names, and uses those same accepted strings for validation and the model-visible collection. A provider must not return a schema named `TOOL_ORDER_REST`. Scoped providers are consulted only for their scope's assemblies. Disposed with the calling fiber. - `ctx.systemPrompt.variable(name: string, provider: (context) => string | undefined): () => Promise | void` Contribute a prompt variable, referenced from section text as `{{name}}`. Scoped variables (via `agent.ctx`) shadow a same-named global for that agent. Duplicate-in-layer or unreferenceable names throw; `undefined` means "no value for this assembly". Disposed with the calling fiber. -- `ctx.systemPrompt.protect(protection: PromptProtection): () => Promise | void` Make named section/tool contributions authoritative after the assembly waterfall. Protection restores canonical registry/provider presence and definition; restored entries keep canonical order with one another and anchor before their first surviving later unprotected canonical neighbor (or at the end), without undoing listener reordering of unprotected entries. Canonical absence is authoritative too, so a mode-hidden tool cannot be fabricated by a listener. Calling through `agent.ctx` protects only that agent's assemblies. A global section protection additionally reserves its name against scoped shadows; registering either side of that conflict fails loudly instead of treating the shadow as canonical. Inputs are snapshotted, empty protections throw, and disposal removes the protection. -- `ctx.systemPrompt.assemble(context?: AssembleContext): Promise` Assemble the prompt for one caller: the global layer merged with `context.scope`'s layer (scoped shadows global). Runs through the scope-filtered `system-prompt/assemble` waterfall, then restores protected contributions from the pre-waterfall canonical assembly. Rejects when a configured `toolOrder` names a tool outside the providers' `knownNames` universe (a restricted-away KNOWN tool is a normal absence), or when a provider returns the reserved rest-entry name. +- `ctx.systemPrompt.protect(protection: PromptProtection): () => Promise | void` Make named section/tool contributions authoritative after the assembly waterfall. Protection restores canonical registry/provider presence and definition; restored entries keep canonical order with one another and anchor before their first surviving later unprotected canonical neighbor (or at the end), without undoing listener reordering of unprotected entries. Canonical absence is authoritative too, so a mode-hidden tool cannot be fabricated by a listener. Calling through `agent.ctx` protects only that agent's assemblies. A global section protection additionally reserves its name against scoped shadows; registering either side of that conflict fails loudly instead of treating the shadow as canonical. Each input array is read once and snapshotted, empty protections throw, and disposal removes the protection. +- `ctx.systemPrompt.assemble(context?: AssembleContext): Promise` Assemble the prompt for one caller: the global layer merged with `context.scope`'s layer (scoped shadows global). Provider output becomes one coherent detached snapshot before `toolOrder` validation. Runs through the scope-filtered `system-prompt/assemble` waterfall, then restores protected contributions from the pre-waterfall canonical assembly. Rejects when a configured `toolOrder` names a tool outside the providers' `knownNames` universe (a restricted-away KNOWN tool is a normal absence), or when a provider returns the reserved rest-entry name. ### Live events diff --git a/packages/core/system-prompt/package.json b/packages/core/system-prompt/package.json index 120e10ef11..69af28f3b5 100644 --- a/packages/core/system-prompt/package.json +++ b/packages/core/system-prompt/package.json @@ -24,6 +24,7 @@ "peerDependencies": { "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-scope": "^0.0.1", + "@deepseek-ai/dsh-session": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "dependencies": { @@ -32,6 +33,7 @@ "devDependencies": { "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-scope": "workspace:^", + "@deepseek-ai/dsh-session": "workspace:^", "cordis": "^4.0.0-rc.6" } } diff --git a/packages/core/system-prompt/src/index.ts b/packages/core/system-prompt/src/index.ts index 6d3ed3af58..8d3cc501a8 100644 --- a/packages/core/system-prompt/src/index.ts +++ b/packages/core/system-prompt/src/index.ts @@ -18,6 +18,7 @@ import z from 'schemastery' import { scopeOf, scopeTarget } from '@deepseek-ai/dsh-scope' import type { ScopeKey, Scoped } from '@deepseek-ai/dsh-scope' import type { ToolSchema } from '@deepseek-ai/dsh-llm' +import { snapshotJsonValue } from '@deepseek-ai/dsh-session' declare module 'cordis' { interface Context { @@ -598,8 +599,9 @@ export class SystemPrompt extends Service { * restored AFTER the whole waterfall, so listener registration order cannot * strip, replace, duplicate, or fabricate it. Canonical absence is restored * too: if the protected name is intentionally absent for an assembly, a - * listener-injected entry with that name is removed. The input arrays are - * snapshotted; an empty protection throws because it cannot affect output. + * listener-injected entry with that name is removed. Each input array is + * read once and snapshotted; an empty protection throws because it cannot + * affect output. * Removed with the calling fiber and emits `system-prompt/change` on * registration/unregistration. A global section protection also reserves the * name against scoped section shadows; registering protection when such a @@ -609,9 +611,11 @@ export class SystemPrompt extends Service { */ protect(protection: PromptProtection): () => Promise | void { const scope = scopeOf(this.ctx) + const sections = protection.sections + const tools = protection.tools const snapshot: PromptProtection = { - ...protection.sections !== undefined ? { sections: [...new Set(protection.sections)] } : {}, - ...protection.tools !== undefined ? { tools: [...new Set(protection.tools)] } : {}, + ...sections !== undefined ? { sections: [...new Set(sections)] } : {}, + ...tools !== undefined ? { tools: [...new Set(tools)] } : {}, } if ((snapshot.sections?.length ?? 0) === 0 && (snapshot.tools?.length ?? 0) === 0) { throw new Error('systemPrompt.protect() requires at least one section or tool name') @@ -669,6 +673,8 @@ export class SystemPrompt extends Service { * the providers' `knownNames` universe rejects the assembly, while a known * name restricted away for this scope is a normal absence), and every * visible variable resolved against `context` into `assembly.variables`. + * Each provider result and schema field is read once; those same captured + * names drive both `toolOrder` validation and the model-visible collection. * Tool schemas are deep-cloned because adapters and request waterfalls may * mutate schema objects. Runs through the `system-prompt/assemble` * waterfall, giving listeners the opportunity to mutate or replace the @@ -724,12 +730,43 @@ export class SystemPrompt extends Service { const knownNames = new Set() for (const provider of providers) { const result = provider(context) - for (const tool of result.schemas) { - collected.push({ ...tool, parameters: structuredClone(tool.parameters) }) - } - for (const name of result.knownNames ?? result.schemas.map(tool => tool.name)) { - knownNames.add(name) + // One provider result snapshot: `schemas`, `knownNames`, and each schema + // field may be accessor-backed. The same captured names must drive both + // toolOrder validation and the model-visible collection. + const inputSchemas = result.schemas + const inputKnownNames = result.knownNames + const schemas = inputSchemas.map((tool, index): ToolSchema => { + const name = tool.name + const description = tool.description + const inputParameters = tool.parameters + if (typeof name !== 'string') { + throw new TypeError(`system prompt tool schema at index ${index} name must be a string`) + } + if (typeof description !== 'string') { + throw new TypeError(`system prompt tool "${name}" description must be a string`) + } + const parameters = snapshotJsonValue(inputParameters) + if (parameters === undefined) { + throw new TypeError(`system prompt tool "${name}" parameters must be losslessly JSON-serializable`) + } + return { name, description, parameters } + }) + let acceptedKnownNames: string[] + if (inputKnownNames === undefined) { + acceptedKnownNames = schemas.map(tool => tool.name) + } else { + if (!Array.isArray(inputKnownNames)) { + throw new TypeError('system prompt tool provider knownNames must be an array of strings') + } + acceptedKnownNames = Array.from(inputKnownNames, (name) => { + if (typeof name !== 'string') { + throw new TypeError('system prompt tool provider knownNames must be an array of strings') + } + return name + }) } + collected.push(...schemas) + for (const name of acceptedKnownNames) knownNames.add(name) } const assembly: PromptAssembly = { sections: [...sectionByName.values()] diff --git a/packages/core/system-prompt/tests/system-prompt.spec.ts b/packages/core/system-prompt/tests/system-prompt.spec.ts index 95d46b705e..9eef467a8e 100644 --- a/packages/core/system-prompt/tests/system-prompt.spec.ts +++ b/packages/core/system-prompt/tests/system-prompt.spec.ts @@ -258,6 +258,30 @@ describe('SystemPrompt', () => { expect(assembly.tools.map(tool => tool.name)).toEqual(['alpha', 'protected', 'zulu']) }) + it('reads protection accessors once so the checked names are the protected names', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + ctx.systemPrompt.section({ name: 'protected', order: 10, text: 'canonical' }) + let reads = 0 + const protection = { + get sections(): string[] { + reads += 1 + return reads === 1 ? ['protected'] : undefined as unknown as string[] + }, + } + ctx.systemPrompt.protect(protection) + ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { + const result = await next() + result.sections = result.sections.filter(section => section.name !== 'protected') + return result + }) + + const assembly = await ctx.systemPrompt.assemble() + + expect(reads).toBe(1) + expect(assembly.sections).toContainEqual({ name: 'protected', order: 10, text: 'canonical' }) + }) + it('protects canonical absence and rejects an empty protection', async () => { const ctx = new Context() await ctx.plugin(SystemPrompt) diff --git a/packages/core/system-prompt/tests/tool-order.spec.ts b/packages/core/system-prompt/tests/tool-order.spec.ts index 16eff6e354..088c6b70ed 100644 --- a/packages/core/system-prompt/tests/tool-order.spec.ts +++ b/packages/core/system-prompt/tests/tool-order.spec.ts @@ -48,6 +48,100 @@ describe('SystemPrompt tool order', () => { expect(names(await ctx.systemPrompt.assemble())).toEqual(['todo_write', 'echo_a', 'echo_b', 'bash']) }) + it('reads provider schemas once so toolOrder validates the model-visible collection', async () => { + const ctx = await mount({ toolOrder: ['actual', TOOL_ORDER_REST] }) + let reads = 0 + ctx.systemPrompt.tools(() => ({ + get schemas(): ToolSchema[] { + reads += 1 + return reads === 1 ? [tool('actual')] : [tool('phantom')] + }, + })) + + const assembly = await ctx.systemPrompt.assemble() + + expect(reads).toBe(1) + expect(names(assembly)).toEqual(['actual']) + }) + + it('reads each provider schema field once before detaching it', async () => { + const ctx = await mount() + const accepted = { type: 'object', properties: { accepted: { type: 'string' } } } + let reads = 0 + const schema = { + name: 'stable', + description: 'stable', + get parameters(): object { + reads += 1 + return reads === 1 ? accepted : { type: 'object', properties: { drifted: { type: 'number' } } } + }, + } as ToolSchema + ctx.systemPrompt.tools(() => ({ schemas: [schema] })) + + const assembly = await ctx.systemPrompt.assemble() + + expect(reads).toBe(1) + expect(assembly.tools[0]?.parameters).toEqual(accepted) + }) + + it('rejects exotic provider parameters before model-visible assembly', async () => { + const ctx = await mount() + class ExoticParameters { + readonly type = 'object' + readonly properties = { value: { type: 'string' } } + } + ctx.systemPrompt.tools(() => ({ + schemas: [{ + name: 'exotic', + description: 'must not be sanitized', + parameters: new ExoticParameters() as unknown as ToolSchema['parameters'], + }], + })) + + await expect(ctx.systemPrompt.assemble()) + .rejects.toThrow(/parameters must be losslessly JSON-serializable/) + }) + + it('rejects malformed fixed provider fields without freezing caller objects', async () => { + const ctx = await mount() + const badName = { value: 'object-name' } + const badDescription = { value: 'object-description' } + ctx.systemPrompt.tools(() => ({ + schemas: [{ + name: badName as unknown as string, + description: 'bad name', + parameters: {}, + }], + })) + await expect(ctx.systemPrompt.assemble()).rejects.toThrow('name must be a string') + expect(Object.isFrozen(badName)).toBe(false) + + const descriptions = await mount() + descriptions.systemPrompt.tools(() => ({ + schemas: [{ + name: 'bad-description', + description: badDescription as unknown as string, + parameters: {}, + }], + })) + await expect(descriptions.systemPrompt.assemble()).rejects.toThrow('description must be a string') + expect(Object.isFrozen(badDescription)).toBe(false) + + const knownNames = await mount() + knownNames.systemPrompt.tools(() => ({ + schemas: [tool('valid')], + knownNames: [{} as unknown as string], + })) + await expect(knownNames.systemPrompt.assemble()).rejects.toThrow('knownNames must be an array of strings') + + const nonArrayKnownNames = await mount() + nonArrayKnownNames.systemPrompt.tools(() => ({ + schemas: [tool('valid')], + knownNames: 'valid' as unknown as string[], + })) + await expect(nonArrayKnownNames.systemPrompt.assemble()).rejects.toThrow('knownNames must be an array of strings') + }) + it('rejects the assembly when toolOrder names a tool that is not registered (misconfiguration blocks work)', async () => { const ctx = await mount({ toolOrder: ['todo_write', 'ghost', TOOL_ORDER_REST, 'wraith'] }) ctx.systemPrompt.tools(() => ({ schemas: [tool('bash'), tool('todo_write')] })) diff --git a/packages/core/system-prompt/tsconfig.json b/packages/core/system-prompt/tsconfig.json index 91e7bf1ba4..a66ece4854 100644 --- a/packages/core/system-prompt/tsconfig.json +++ b/packages/core/system-prompt/tsconfig.json @@ -22,6 +22,9 @@ }, { "path": "../../core/scope" + }, + { + "path": "../../core/session" } ] } diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index 2a678408e0..0776ff39f6 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -15,14 +15,14 @@ tools: ### Public API -- `ctx.tools.register(definition: ToolDefinition): () => Promise | void` Register a tool as a frozen snapshot. Parameters must survive lossless-JSON validation before and after cloning; scalar fields are copied, and execute/presentation callbacks are bound once to the original definition as their method receiver, so later callback-property replacement cannot change dispatch. The layer is the CALLING context's scope (`dsh-scope`): a plain plugin context registers globally; an agent's `agent.ctx` registers for that agent alone, SHADOWING a same-named global tool there (per-agent tool variants). Duplicate names within one layer throw; non-native modes also reject the reserved `run_code` transport name. Disposed with the calling fiber (= the agent, for scoped registrations). -- `ctx.tools.restrict(filter: ToolRestriction): () => Promise | void` Scoped-only (throws on a plain context): mask the GLOBAL end-capability surface for the calling agent — `allow` keeps only the listed tools, `deny` removes them; multiple restrictions intersect; scoped registrations bypass restriction as explicit grants. The reserved `run_code` transport remains available automatically and cannot be named explicitly. Snapshot-at-registration, loud unknown-name validation, `restrict({})` rejects (the materialized-empty-config trap). +- `ctx.tools.register(definition: ToolDefinition): () => Promise | void` Register a tool as a frozen snapshot. Every top-level caller field is read once into one coherent acceptance record; `name`/`description` must be strings and `timeoutMs`, when present, must be positive and finite before the snapshot can own them. Parameters are validated and detached by one recursive lossless-JSON traversal, so a stateful getter cannot show one value to a check and another to a prototype-erasing clone. Execute/presentation callbacks are bound once to the original definition as their method receiver, so later caller mutation cannot change the executable definition. The layer is the CALLING context's scope (`dsh-scope`): a plain plugin context registers globally; an agent's `agent.ctx` registers for that agent alone, SHADOWING a same-named global tool there (per-agent tool variants). Duplicate names within one layer throw; non-native modes also reject the reserved `run_code` transport name. Disposed with the calling fiber (= the agent, for scoped registrations). +- `ctx.tools.restrict(filter: ToolRestriction): () => Promise | void` Scoped-only (throws on a plain context): mask the GLOBAL end-capability surface for the calling agent — `allow` keeps only the listed tools, `deny` removes them; multiple restrictions intersect; scoped registrations bypass restriction as explicit grants. The registry reads `allow`/`deny` once, so the values checked for an empty filter and unknown names are exactly the values enforced. The reserved `run_code` transport remains available automatically and cannot be named explicitly. Snapshot-at-registration, loud unknown-name validation, `restrict({})` rejects (the materialized-empty-config trap). - `ctx.tools.get(name: string, scope?: ScopeKey): ToolDefinition | undefined` Resolution as one scope sees it (shadowing applied; a restricted-away global reads as absent) — presenters pass the calling agent so the card matches what executed. Returned definitions are the registry's frozen snapshots. - `ctx.tools.visible(scope?: ScopeKey): ToolDefinition[]` The canonical executable view — restricted global layer ∪ the scope's own layer, plus the reserved transport in non-native modes — feeding prompt assembly, `get`, and `execute`, so presentation and dispatch resolve the same frozen definitions. - `ctx.tools.knownNames(scope?: ScopeKey): string[]` The PRE-restriction end-capability name universe `restrict` validates against: a typo fails loud while a restricted-away tool stays a normal absence. Presentation providers add reserved transport names separately when validating `toolOrder`. - `ctx.tools.schemas(scope?: ScopeKey): ToolSchema[]` Schemas of everything the scope can see (without the `execute` functions). The shipped tools' schemas are catalogued in [docs/tool-catalog.md](../../../docs/tool-catalog.md), generated by booting each tool plugin and harvesting this method (see [the tool-schema-catalog RFC](../../../docs/rfc/implemented/process/2026-07-02-tool-schema-catalog.md)). - `ctx.tools.guard(guard: ToolGuard): () => Promise | void` Register a monotonic synchronous execution guard after `tools/pre-execute`: returning a reason denies the call, while `undefined` leaves it unchanged. A plain-context guard applies globally; an `agent.ctx` guard applies only to that agent. Later waterfall listeners cannot turn a guard denial back into permission. Disposed with the calling fiber. -- `ctx.tools.execute(exec: ToolExecutionInput): Promise` Snapshot one single-use call input into a pipeline-owned execution, assign its opaque correlation token, require `arguments` to be losslessly JSON-serializable before and after cloning, deep-freeze the detached arguments, and protect its identity before running `tools/pre-execute` → guards → `tools/execute` → `tools/post-execute`; optional `signal` is the only operational field an around-dispatch wrapper may add, replace, or remove. Validate the final result as losslessly JSON-serializable and freeze the complete execution before `tools/result` observers run. Invalid or unstable input—including cloneable mutable exotics—and malformed or non-JSON listener/tool results normalize to `isError` outcomes rather than bypassing policy or failing later at the session log. +- `ctx.tools.execute(exec: ToolExecutionInput): Promise` Read each caller-owned top-level field once, snapshot the single-use call into a pipeline-owned execution, assign its opaque correlation token, materialize `arguments` through one lossless-JSON traversal, deep-freeze them, and protect identity before running `tools/pre-execute` → guards → `tools/execute` → `tools/post-execute`; optional `signal` is the only operational field an around-dispatch wrapper may add, replace, or remove. After the required `callId`/`name` correlation identity is captured, the same captured optional fields build the normalized error shell if a later accessor or validation fails, so policy, dispatch, routing, and `tools/result` cannot observe different caller values. Every top-level result field is likewise captured once and the complete result or post-decision is losslessly materialized before final observation. Invalid input—including cloneable mutable exotics—and malformed or non-JSON listener/tool results normalize to `isError` outcomes rather than bypassing policy or failing later at the session log. A throwing `callId` or `name` accessor rejects because no trustworthy result identity exists yet. ### Injected services @@ -77,7 +77,7 @@ ctx.tools.register(defineTool({ })) ``` -The helper converts the author-facing `SchemaSpec` (with `required: true` as a per-property boolean) to standard JSON Schema for the wire format. Raw JSON-Schema tool definitions (from MCP servers) are still accepted by the registry directly. +The helper converts the author-facing `SchemaSpec` (with `required: true` as a per-property boolean) to standard JSON Schema for the wire format. Definition is a snapshot boundary: `defineTool` reads every top-level option once, detaches the schema, and derives both an independent wire schema and every later execute/presentation validation from that accepted snapshot. Stateful accessors or later caller mutation therefore cannot make the schema shown to the model disagree with the schema enforced at runtime. Raw JSON-Schema tool definitions (from MCP servers) are still accepted by the registry directly. A `defineTool` tool also **validates the model-generated arguments against its `SchemaSpec` before `execute` runs** (`validateArgs`). The model's JSON is untrusted — `InferArgs` is a compile-time claim, not a runtime guarantee — so on a mismatch (missing required key, wrong primitive, bad enum member, nested violation) the tool throws a `ToolArgsError` (`code: 'INVALID_ARGS'`); the registry turns it into an `isError` result whose text lists the violations, which the model sees and self-corrects from. Validation mirrors the JSON Schema conversion exactly: extra keys are allowed, `default` is not applied, and an `object`/`array` prop without `properties`/`items` only type-checks. Raw-registered tools (MCP) are **not** validated by the harness — they validate their own input. diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index 71dd465dd6..b466875c75 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -23,7 +23,7 @@ import type { ScopeKey, Scoped } from '@deepseek-ai/dsh-scope' import type { CallId, ContentBlock, ToolSchema } from '@deepseek-ai/dsh-llm' import { assertNever, deepFreeze, HarnessError } from '@deepseek-ai/dsh-llm' import type { Agent, HookContext } from '@deepseek-ai/dsh-agent' -import { isJsonValue } from '@deepseek-ai/dsh-session' +import { snapshotJsonValue } from '@deepseek-ai/dsh-session' import type { ToolProviderResult } from '@deepseek-ai/dsh-system-prompt' import type { CodeRuntime } from '@deepseek-ai/dsh-code-runtime' // Type-only: makes `ctx.get('approval')` resolve to the ApprovalService @@ -275,10 +275,10 @@ export interface ToolExecutionInput { /** * One pending tool call inside the registry pipeline. Call identity, the - * registry-assigned {@link token}, and a lossless-JSON-validated, deep-frozen - * clone of the parsed arguments are immutable from the first policy listener onward, while an - * around-dispatch wrapper may set, replace, or remove only `signal`. The - * registry freezes the complete object before `tools/result` observers run. + * registry-assigned {@link token}, and a deep-frozen lossless-JSON snapshot of + * the parsed arguments are immutable from the first policy listener onward, + * while an around-dispatch wrapper may set, replace, or remove only `signal`. + * The registry freezes the complete object before `tools/result` observers run. */ export interface ToolExecution extends ToolExecutionInput { /** Registry-assigned identity shared with nested calls only as their opaque `parent` token. */ @@ -590,12 +590,13 @@ export class ToolRegistry extends Service { * the shadowing feature, not an error; the global-duplicate message names * `agent.ctx` as the per-agent alternative), or if a non-native mode reserves * the `run_code` name for its presentation transport. The visible schema set - * flows into prompt assembly automatically. Registration validates and - * clones the JSON parameters, copies scalar fields, binds each callback once - * to the caller's definition as its method receiver, and freezes the stored - * snapshot; later mutation or callback replacement on the input object does - * not rewrite the registry. Disposed with the calling fiber. Emits - * `tools/change` on register/unregister. + * flows into prompt assembly automatically. Registration materializes the JSON + * parameters in one pass, copies scalar fields, binds each callback once to the + * caller's definition as its method receiver, and freezes the stored snapshot; + * later mutation or callback replacement on the input object does not rewrite + * the registry. Every top-level field is read once into one coherent acceptance + * snapshot, so stateful accessors cannot make validation and storage use + * different values. Emits `tools/change` on register/unregister. * @param definition - the tool's schema plus its execute (and optional * presentation) functions. * @returns the disposer that unregisters the tool. The exact @@ -604,31 +605,57 @@ export class ToolRegistry extends Service { */ register(definition: ToolDefinition): () => Promise | void { const scope = scopeOf(this.ctx) - // A schema crosses the same model/log boundary as execution arguments. - // Validate BEFORE cloning because structuredClone silently turns some - // forbidden values (for example class instances) into plain records, then - // validate the detached value again to contain hostile getters that change - // between inspection and snapshotting. A frozen Map is still mutable, so - // deepFreeze alone is not a sufficient registration boundary. - if (!isJsonValue(definition.parameters)) { - throw new TypeError('tool parameters must be losslessly JSON-serializable') + // One coherent acceptance snapshot: a caller may expose fields through + // accessors, so every top-level value is read exactly once before any + // validation or binding. Checked parameters and stored parameters must be + // the same reference, and a callback cannot change between lookup/bind. + const name = definition.name + const description = definition.description + const inputParameters = definition.parameters + const timeoutMs = definition.timeoutMs + // eslint-disable-next-line @typescript-eslint/unbound-method + const inputExecute = definition.execute + // eslint-disable-next-line @typescript-eslint/unbound-method + const inputPresentCall = definition.presentCall + // eslint-disable-next-line @typescript-eslint/unbound-method + const inputPresentResult = definition.presentResult + // Reject malformed fixed fields before any caller-owned value can enter the + // frozen snapshot. In particular, a boxed string/object must not become a + // Map key or get recursively frozen as though it were a scalar. + if (typeof name !== 'string') throw new TypeError('tool name must be a string') + if (typeof description !== 'string') throw new TypeError(`tool "${name}" description must be a string`) + if (timeoutMs !== undefined + && (typeof timeoutMs !== 'number' || !Number.isFinite(timeoutMs) || timeoutMs <= 0)) { + throw new TypeError(`tool "${name}" timeoutMs must be a positive finite number`) } - const parameters = structuredClone(definition.parameters) - if (!isJsonValue(parameters)) { - throw new TypeError('tool parameters must be stable losslessly JSON-serializable data') + if (typeof inputExecute !== 'function') throw new TypeError(`tool "${name}" execute must be a function`) + if (inputPresentCall !== undefined && typeof inputPresentCall !== 'function') { + throw new TypeError(`tool "${name}" presentCall must be a function when provided`) + } + if (inputPresentResult !== undefined && typeof inputPresentResult !== 'function') { + throw new TypeError(`tool "${name}" presentResult must be a function when provided`) + } + const execute = inputExecute.bind(definition) + const presentCall = inputPresentCall?.bind(definition) + const presentResult = inputPresentResult?.bind(definition) + // A schema crosses the same model/log boundary as execution arguments. + // Validate and detach it in one traversal: validate-then-structuredClone + // would reread getters and could erase an exotic prototype returned only to + // the clone. A frozen Map is still mutable, so deepFreeze alone is not a + // sufficient registration boundary. + const parameters = snapshotJsonValue(inputParameters) + if (parameters === undefined) { + throw new TypeError('tool parameters must be losslessly JSON-serializable') } // Bind once so replacing a callback on the caller-owned definition after // registration cannot change dispatch, while preserving the historical // method receiver (`this === definition`) for callbacks that use it. - const execute = definition.execute.bind(definition) - const presentCall = definition.presentCall?.bind(definition) - const presentResult = definition.presentResult?.bind(definition) const snapshot: ToolDefinition = deepFreeze({ - name: definition.name, - description: definition.description, + name, + description, parameters, execute, - ...definition.timeoutMs !== undefined ? { timeoutMs: definition.timeoutMs } : {}, + ...timeoutMs !== undefined ? { timeoutMs } : {}, ...presentCall !== undefined ? { presentCall } : {}, ...presentResult !== undefined ? { presentResult } : {}, }) @@ -677,8 +704,9 @@ export class ToolRegistry extends Service { * global tools they mask exist (the agent-creation `setup` window satisfies * this). A non-native mode's reserved `run_code` presentation transport is * not a filterable capability; naming it explicitly throws, while omitting - * it from an allow-list cannot remove it. The filter is SNAPSHOT at - * registration: later caller mutation of the arrays changes nothing. + * it from an allow-list cannot remove it. `allow` and `deny` are each read + * once, then the filter is SNAPSHOT at registration: the values checked are + * the values enforced, and later caller mutation of the arrays changes nothing. * Multiple restrictions compose by intersection. Scoped registrations * bypass restrictions (explicit grants win). Disposed with the calling * fiber (revocable independently); emits `tools/change`. @@ -692,13 +720,19 @@ export class ToolRegistry extends Service { if (scope === undefined) { throw new Error('tools.restrict() requires a scoped context (agent.ctx): a context-global restriction would mask every agent — deny the tool for the intended agent instead') } - if (filter.allow === undefined && filter.deny === undefined) { + // Read each caller-owned accessor once. The same values must decide + // whether the filter is meaningful AND become the enforced snapshot: a + // stateful getter must not pass the no-op check as `allow: []` and then + // disappear when the snapshot is built. + const allow = filter.allow + const deny = filter.deny + if (allow === undefined && deny === undefined) { throw new Error('tools.restrict({}) is a no-op: pass `allow` and/or `deny` (an empty filter is almost always a materialized-empty-config bug)') } // Snapshot BEFORE validation so what was checked is what is enforced. const snapshot: ToolRestriction = { - ...filter.allow !== undefined ? { allow: [...filter.allow] } : {}, - ...filter.deny !== undefined ? { deny: [...filter.deny] } : {}, + ...allow !== undefined ? { allow: [...allow] } : {}, + ...deny !== undefined ? { deny: [...deny] } : {}, } if (this.codeTransport !== undefined && [...snapshot.allow ?? [], ...snapshot.deny ?? []].includes(RUN_CODE_NAME)) { @@ -909,35 +943,62 @@ export class ToolRegistry extends Service { * restricted-away global is exactly as absent as a nonexistent one), the * result is an `isError` carrying a `UNKNOWN_TOOL` structured error. A thrown * {@link HarnessError} surfaces its `{ name, code }` on the result. Before - * the final observe-only notification, the authoritative outcome must survive - * a lossless JSON round trip; an invalid outcome is normalized to an error. + * the final observe-only notification, the authoritative outcome is + * materialized as a detached lossless-JSON snapshot; an invalid outcome is + * normalized to an error. * A malformed runtime/casted `tools/pre-execute` decision likewise normalizes * to an error before approval, guards, or the tool body. - * Caller-owned arguments must survive lossless-JSON validation before and - * after cloning; a violation normalizes to an error before policy or dispatch. - * @param exec - the single-use call input; its identity is snapshotted and - * protected before policy runs. - * @returns the final result after every waterfall; failures resolve as - * `isError` results, never rejections. + * Caller-owned arguments are validated and detached in one recursive + * lossless-JSON traversal; a violation normalizes to an error before policy + * or dispatch. + * @param exec - the single-use call input; every top-level field is read once + * and that identity snapshot is protected before policy runs (and reused by + * the normalized error shell if validation fails). + * @returns the final result after every waterfall. Once the required + * `callId` and `name` correlation identity has been captured, later + * accessor, validation, listener, and tool failures resolve as `isError` + * results rather than rejections. A throwing `callId` or `name` accessor + * rejects because no trustworthy result identity exists yet. */ async execute(exec: ToolExecutionInput): Promise { + // callId/name are the minimum correlation identity needed to construct a + // result at all. Every other caller-controlled accessor is read once + // INSIDE the normalization boundary; if one throws, the error shell uses + // the fields captured before it and never rereads the hostile record. + const callId = exec.callId + const name = exec.name + let agent: Agent | undefined + let parent: ToolExecutionToken | undefined + let signal: AbortSignal | undefined let execution: ToolExecution try { - execution = this.prepareExecution(exec) + agent = exec.agent + parent = exec.parent + signal = exec.signal + const args = exec.arguments + const input: Readonly = Object.freeze({ + callId, + name, + arguments: args, + ...agent !== undefined ? { agent } : {}, + ...parent !== undefined ? { parent } : {}, + ...signal !== undefined ? { signal } : {}, + }) + execution = this.prepareExecution(input) } catch (error: unknown) { - // Contract-violating non-JSON or non-cloneable arguments cannot enter a - // pipeline whose logged and executed forms must agree. Still publish one - // scoped final outcome, using an immutable identity shell, so result - // observers retain their every-call guarantee without seeing the invalid - // value. + // Contract-violating arguments outside the lossless-JSON vocabulary cannot + // enter a pipeline whose logged and executed forms must agree. Still + // publish one scoped final outcome, using an immutable identity shell, so + // result observers retain their every-call guarantee without seeing the + // invalid value. execution = Object.freeze({ token: createExecutionToken(), - callId: exec.callId, - name: exec.name, + callId, + name, arguments: undefined, - ...exec.agent !== undefined ? { agent: exec.agent } : {}, - ...isExecutionToken(exec.parent) ? { parent: exec.parent } : {}, - ...exec.signal !== undefined ? { signal: exec.signal } : {}, + ...agent !== undefined ? { agent } : {}, + ...isExecutionToken(parent) ? { parent } : {}, + ...signal !== undefined ? { signal } : {}, }) const result = toolErrorResult(execution.callId, error) await this.notifyResult(execution, result) @@ -945,11 +1006,11 @@ export class ToolRegistry extends Service { } let result: ToolExecutionResult try { - // Validate the authoritative FINAL result, not merely the tool body's + // Materialize the authoritative FINAL result, not merely the tool body's // intermediate return. Post-policy may replace content or attach context, - // and every one of these fields is session-bound. Reject anything that - // cannot round-trip losslessly through the durable JSON log before the - // observe-only `tools/result` commit point sees success. + // and every one of these fields is session-bound. Reject anything outside + // the lossless-JSON vocabulary before the observe-only `tools/result` + // commit point sees success. result = this.snapshotExecutionResult(execution, await this.executePipeline(execution)) } catch (error: unknown) { // Outer backstop: a throwing pre/post-execute listener, guard, or the @@ -961,17 +1022,14 @@ export class ToolRegistry extends Service { } /** Snapshot one call into a shared pipeline object with immutable identity and mutable cancellation. */ - private prepareExecution(input: ToolExecutionInput): ToolExecution { + private prepareExecution(input: Readonly): ToolExecution { if (input.parent !== undefined && !isExecutionToken(input.parent)) { throw new TypeError('tool execution parent must be a registry-minted opaque token') } - if (!isJsonValue(input.arguments)) { + const args = snapshotJsonValue(input.arguments) + if (args === undefined) { throw new TypeError('tool execution arguments must be losslessly JSON-serializable') } - const args = structuredClone(input.arguments) - if (!isJsonValue(args)) { - throw new TypeError('tool execution arguments must be stable losslessly JSON-serializable data') - } const execution: ToolExecution = { token: createExecutionToken(), callId: input.callId, @@ -1100,10 +1158,13 @@ export class ToolRegistry extends Service { // The pipeline is over: freeze the remaining mutable signal slot so every // observer sees the SAME WeakMap-keyable execution without a mutation race. Object.freeze(exec) - // postExecute clones every accepted result/decision before rebuilding the - // outcome; all error paths construct plain data. The final result is thus - // structurally cloneable before it reaches this observe-only boundary. - const snapshot = deepFreeze(structuredClone(result)) + // Materialize once more at the observer boundary so every listener receives + // the same detached result even when an internal error path constructed it. + const detached = snapshotJsonValue(result) + if (detached === undefined) { + throw new TypeError('tool result notification must be losslessly JSON-serializable') + } + const snapshot = deepFreeze(detached) const callbacks = this.ctx.events.dispatch('parallel', [ scopeTarget(this, exec.agent), 'tools/result', exec, snapshot, ]) @@ -1169,13 +1230,16 @@ export class ToolRegistry extends Service { // authoritative-call-id requirement and the "preserve the dispatched // isError/error" contract. The decision is the ONLY sanctioned channel for a // listener to change the outcome (block, or accept-with-replacement); the - // call id is always the authoritative `exec.callId`. Deep cloning protects - // nested content, error, and meta data from in-place listener mutation. + // call id is always the authoritative `exec.callId`. The one-pass snapshot + // protects nested content, error, and meta from in-place listener mutation. const dispatched = this.snapshotExecutionResult(exec, result) - const decision = structuredClone(await this.ctx.waterfall( + const decision = snapshotJsonValue(await this.ctx.waterfall( scopeTarget(this, exec.agent), 'tools/post-execute', exec, result, () => Promise.resolve({ kind: 'accept' }), )) + if (decision === undefined) { + throw new TypeError('tools/post-execute must return a losslessly JSON-serializable decision') + } this.assertPostDecision(decision) const additionalContext = decision.additionalContext if (decision.kind === 'block') { @@ -1200,31 +1264,36 @@ export class ToolRegistry extends Service { throw new TypeError('tools/execute must return a ToolExecutionResult object') } const result = value as Partial - if (!Array.isArray(result.content) || typeof result.isError !== 'boolean') { + // Capture the provider/listener-owned result exactly once. The same values + // must pass shape/correlation checks and become the detached final outcome; + // a stateful accessor cannot validate one result and publish another. + const callId = result.callId + const content = result.content + const isError = result.isError + const error = result.error + const additionalContext = result.additionalContext + const meta = result.meta + if (!Array.isArray(content) || typeof isError !== 'boolean') { throw new TypeError('tools/execute must return a ToolExecutionResult with content[] and boolean isError') } - if (result.callId !== exec.callId) { - throw new TypeError(`tools/execute returned callId "${String(result.callId)}" for authoritative call "${exec.callId}"`) + if (callId !== exec.callId) { + throw new TypeError(`tools/execute returned callId "${String(callId)}" for authoritative call "${exec.callId}"`) } const candidate = { callId: exec.callId, - content: result.content, - isError: result.isError, - ...result.error !== undefined ? { error: result.error } : {}, - ...result.additionalContext !== undefined ? { additionalContext: result.additionalContext } : {}, - ...result.meta !== undefined ? { meta: result.meta } : {}, + content, + isError, + ...error !== undefined ? { error } : {}, + ...additionalContext !== undefined ? { additionalContext } : {}, + ...meta !== undefined ? { meta } : {}, } - // Validate BEFORE cloning: structuredClone turns some forbidden exotic or - // class instances into plain objects, which would hide a lossy JSON - // boundary violation. Validate the detached clone again to contain hostile - // getters whose value changes between inspection and snapshotting. - if (!isJsonValue(candidate)) { + // One traversal both validates and detaches the accepted result. A separate + // check followed by structuredClone would reread getters and could sanitize + // a class instance into an apparently valid plain record. + const snapshot = snapshotJsonValue(candidate) + if (snapshot === undefined) { throw new TypeError('tools/execute must return a losslessly JSON-serializable ToolExecutionResult') } - const snapshot = structuredClone(candidate) - if (!isJsonValue(snapshot)) { - throw new TypeError('tools/execute must return a stable losslessly JSON-serializable ToolExecutionResult') - } return snapshot } diff --git a/packages/core/tools/src/schema.ts b/packages/core/tools/src/schema.ts index 1a428ffd40..add9c29e61 100644 --- a/packages/core/tools/src/schema.ts +++ b/packages/core/tools/src/schema.ts @@ -20,6 +20,7 @@ */ import { assertNever, HarnessError } from '@deepseek-ai/dsh-llm' +import { snapshotJsonValue } from '@deepseek-ai/dsh-session' import type { ToolDefinition, ToolExecuteReturn, ToolExecution, ToolResult } from './index.ts' import type { ToolCallView, ToolResultView } from './presentation.ts' @@ -353,6 +354,12 @@ export interface DefineToolOptions { * Raw JSON-Schema tool definitions (from MCP servers) are still accepted * by `ToolRegistry.register()` directly — `defineTool` is sugar for * first-party plugin authors. + * + * Definition is an acceptance boundary: every top-level option is read once, + * and the parameter spec is detached before either the wire schema or the + * runtime validators are built. Later mutation of the caller's options or + * schema therefore cannot make the model-visible schema disagree with execute + * or presentation validation. * @param options - the tool's name, description, typed parameter schema, * execute body, and optional presenters. * @returns a registry-ready {@link ToolDefinition}: its `execute` validates the @@ -362,6 +369,13 @@ export interface DefineToolOptions { * args). */ export function defineTool(options: DefineToolOptions): ToolDefinition { + // Capture every caller-owned top-level field before inspecting any nested + // schema value. Accessors may be stateful, so validation, presentation, and + // the returned definition must all derive from this one accepted record. + const name = options.name + const description = options.description + const inputParameters = options.parameters + const timeoutMs = options.timeoutMs // Object-literal execute methods don't use `this`; the reference is safe. // eslint-disable-next-line @typescript-eslint/unbound-method const userExecute = options.execute @@ -369,20 +383,31 @@ export function defineTool(options: DefineToolOptions): const userPresentCall = options.presentCall // eslint-disable-next-line @typescript-eslint/unbound-method const userPresentResult = options.presentResult - if (options.timeoutMs !== undefined && (!Number.isFinite(options.timeoutMs) || options.timeoutMs <= 0)) { - throw new Error(`defineTool(${options.name}): timeoutMs must be a positive finite number`) + if (timeoutMs !== undefined && (!Number.isFinite(timeoutMs) || timeoutMs <= 0)) { + throw new Error(`defineTool(${name}): timeoutMs must be a positive finite number`) + } + // The internal SchemaSpec and public wire schema must not share mutable + // subobjects. Each is materialized through the lossless one-pass boundary; + // structuredClone alone could sanitize an exotic default or nested getter. + const parameterSpec = snapshotJsonValue(inputParameters) + if (parameterSpec === undefined) { + throw new Error(`defineTool(${name}): parameters must be losslessly JSON-serializable`) + } + const wireParameters = snapshotJsonValue(schemaSpecToJsonSchema(parameterSpec)) + if (wireParameters === undefined) { + throw new Error(`defineTool(${name}): generated parameters must be losslessly JSON-serializable`) } const tool: ToolDefinition = { - name: options.name, - description: options.description, - parameters: schemaSpecToJsonSchema(options.parameters) as unknown as Record, - ...(options.timeoutMs !== undefined ? { timeoutMs: options.timeoutMs } : {}), + name, + description, + parameters: wireParameters as unknown as Record, + ...(timeoutMs !== undefined ? { timeoutMs } : {}), async execute(args: unknown, exec: ToolExecution): Promise { // Validate the model-generated args before the typed body runs. On // mismatch we throw ToolArgsError; the registry turns it into an // isError result so the model can self-correct. After this guard, the // cast to InferArgs reflects the validated shape. - const violations = validateArgs(options.parameters, args) + const violations = validateArgs(parameterSpec, args) if (violations.length > 0) throw new ToolArgsError(violations) return userExecute(args as InferArgs, exec) }, @@ -393,13 +418,13 @@ export function defineTool(options: DefineToolOptions): // than the hard `ToolArgsError` the execute path raises. if (userPresentCall) { tool.presentCall = (args: unknown): ToolCallView | undefined => { - if (validateArgs(options.parameters, args).length > 0) return undefined + if (validateArgs(parameterSpec, args).length > 0) return undefined return userPresentCall(args as InferArgs) } } if (userPresentResult) { tool.presentResult = (args: unknown, result: ToolResult): ToolResultView | undefined => { - if (validateArgs(options.parameters, args).length > 0) return undefined + if (validateArgs(parameterSpec, args).length > 0) return undefined return userPresentResult(args as InferArgs, result) } } diff --git a/packages/core/tools/tests/scoped.spec.ts b/packages/core/tools/tests/scoped.spec.ts index cac4a7e29b..ea4ef57ddd 100644 --- a/packages/core/tools/tests/scoped.spec.ts +++ b/packages/core/tools/tests/scoped.spec.ts @@ -4,7 +4,7 @@ import { createScope } from '@deepseek-ai/dsh-scope' import type { Scope } from '@deepseek-ai/dsh-scope' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' -import type { PreToolDecision, ToolDefinition, ToolExecution, ToolExecutionToken } from '@deepseek-ai/dsh-tools' +import type { PreToolDecision, ToolDefinition, ToolExecution, ToolExecutionInput, ToolExecutionToken, ToolRestriction } from '@deepseek-ai/dsh-tools' import type { Agent, AgentId } from '@deepseek-ai/dsh-agent' import { CallId } from '@deepseek-ai/dsh-llm' import type { ContentBlock } from '@deepseek-ai/dsh-llm' @@ -141,6 +141,25 @@ describe('restrict()', () => { expect(ctx.tools.schemas(key).map(t => t.name)).toEqual(['b']) }) + it('reads restriction accessors once so the checked filter is the enforced filter', async () => { + const ctx = await mount() + const { scope, key } = await mintAgentScope(ctx, 'a') + ctx.tools.register(tool('global')) + let allowReads = 0 + const filter = { + get allow(): string[] | undefined { + allowReads += 1 + return allowReads === 1 ? [] : undefined + }, + } as ToolRestriction + + scope.ctx.tools.restrict(filter) + + expect(allowReads).toBe(1) + expect(ctx.tools.schemas(key)).toEqual([]) + expect(await run(ctx, 'global', key)).toBe('Error: unknown tool "global"') + }) + it('fails loud on an unscoped call, an empty filter, and unknown names', async () => { const ctx = await mount() const { scope } = await mintAgentScope(ctx, 'a') @@ -372,6 +391,116 @@ describe('scoped execution dispatch', () => { expect(Object.isFrozen(forged)).toBe(false) }) + it('reads a stateful parent accessor once before policy, dispatch, and result observation', async () => { + const ctx = await mount() + const observed: (ToolExecutionToken | undefined)[] = [] + ctx.tools.register({ + ...tool('t'), + execute: (_args, exec) => { + observed.push(exec.parent) + return Promise.resolve([{ type: 'text', text: 'ran:t' }]) + }, + }) + ctx.on('tools/pre-execute', (exec, next) => { + observed.push(exec.parent) + return next() + }) + ctx.on('tools/execute', (exec, next) => { + observed.push(exec.parent) + return next() + }) + ctx.on('tools/result', (exec) => { observed.push(exec.parent) }) + const forged = { fake: true } as unknown as ToolExecutionToken + let parentReads = 0 + const input = { + callId: CallId('stateful-parent'), + name: 't', + arguments: {}, + get parent(): ToolExecutionToken | undefined { + parentReads += 1 + return parentReads === 1 ? undefined : forged + }, + } as ToolExecutionInput + + const result = await ctx.tools.execute(input) + + expect(result.isError).toBe(false) + expect(parentReads).toBe(1) + expect(observed).toEqual([undefined, undefined, undefined, undefined]) + }) + + it('uses one input snapshot for the normalized error shell', async () => { + const ctx = await mount() + const { scope, key } = await mintAgentScope(ctx, 'accepted') + const driftAgent = { id: 'drift' as AgentId } as Agent + ctx.tools.register(tool('parent')) + ctx.tools.register(tool('t')) + let parent!: ToolExecutionToken + const stopCapture = ctx.on('tools/pre-execute', (exec, next) => { + if (exec.name === 'parent') parent = exec.token + return next() + }) + await ctx.tools.execute({ callId: CallId('parent'), name: 'parent', arguments: {} }) + stopCapture() + const acceptedSignal = new AbortController().signal + const driftSignal = new AbortController().signal + const forged = { fake: true } as unknown as ToolExecutionToken + const reads = { callId: 0, name: 0, arguments: 0, agent: 0, parent: 0, signal: 0 } + const input = { + get callId() { reads.callId += 1; return CallId('unstable-error') }, + get name() { reads.name += 1; return 't' }, + get arguments(): unknown { reads.arguments += 1; return { invalid: () => undefined } }, + get agent() { reads.agent += 1; return reads.agent === 1 ? key : driftAgent }, + get parent() { reads.parent += 1; return reads.parent <= 2 ? parent : forged }, + get signal() { reads.signal += 1; return reads.signal === 1 ? acceptedSignal : driftSignal }, + } as ToolExecutionInput + let observed: Readonly | undefined + let scopedObserved = 0 + ctx.on('tools/result', (exec) => { observed = exec }) + scope.ctx.on('tools/result', () => { scopedObserved += 1 }) + + const result = await ctx.tools.execute(input) + + expect(result.isError).toBe(true) + expect(reads).toEqual({ callId: 1, name: 1, arguments: 1, agent: 1, parent: 1, signal: 1 }) + expect(scopedObserved).toBe(1) + expect(observed).toMatchObject({ + callId: CallId('unstable-error'), + name: 't', + agent: key, + parent, + signal: acceptedSignal, + }) + expect(Object.isFrozen(observed)).toBe(true) + }) + + it('normalizes a throwing arguments accessor without rereading it or losing the final notification', async () => { + const ctx = await mount() + ctx.tools.register(tool('t')) + let argumentReads = 0 + let observed = 0 + ctx.on('tools/result', (exec, result) => { + observed += 1 + expect(exec.arguments).toBeUndefined() + expect(result.isError).toBe(true) + }) + const input = { + callId: CallId('throwing-arguments'), + name: 't', + get arguments(): unknown { + argumentReads += 1 + throw new Error('getter exploded') + }, + } as ToolExecutionInput + + const result = await ctx.tools.execute(input) + + expect(result.isError).toBe(true) + expect(result.content).toEqual([{ type: 'text', text: 'Error: getter exploded' }]) + expect(argumentReads).toBe(1) + expect(observed).toBe(1) + }) + it.each([ ['Map', new Map([['mutable', true]])], ['class instance', new (class Arguments { value = 1 })()], @@ -408,7 +537,7 @@ describe('scoped execution dispatch', () => { expect({ policyCalls, bodyCalls, observed }).toEqual({ policyCalls: 0, bodyCalls: 0, observed: 1 }) }) - it('rejects arguments that change to non-JSON data while being snapshotted', async () => { + it('reads nested arguments once into the executed snapshot', async () => { const ctx = await mount() ctx.tools.register(tool('t')) let reads = 0 @@ -421,12 +550,11 @@ describe('scoped execution dispatch', () => { callId: CallId('unstable-arguments'), name: 't', arguments: argumentsValue, }) + expect(reads).toBe(1) expect(result).toEqual({ callId: CallId('unstable-arguments'), - content: [{ - type: 'text', text: 'Error: tool execution arguments must be stable losslessly JSON-serializable data', - }], - isError: true, + content: [{ type: 'text', text: 'ran:t' }], + isError: false, }) }) diff --git a/packages/core/tools/tests/tools.spec.ts b/packages/core/tools/tests/tools.spec.ts index deb53b7dc7..5bff94c960 100644 --- a/packages/core/tools/tests/tools.spec.ts +++ b/packages/core/tools/tests/tools.spec.ts @@ -6,8 +6,8 @@ import type { Agent } from '@deepseek-ai/dsh-agent' import ApprovalService, { type ApprovalOutcome, type ApprovalRequest } from '@deepseek-ai/dsh-user-approval' import ToolRegistry, { defineTool, schemaSpecToJsonSchema, validateArgs, ToolArgsError, ToolNotFoundError, - type InferArgs, type SchemaSpec, type PreToolDecision, type PostToolDecision, - type ToolExecution, type ToolExecutionResult, type ToolGuard, + type DefineToolOptions, type InferArgs, type SchemaSpec, type PreToolDecision, type PostToolDecision, + type ToolDefinition, type ToolExecution, type ToolExecutionResult, type ToolGuard, } from '@deepseek-ai/dsh-tools' async function setup() { @@ -135,7 +135,7 @@ describe('ToolRegistry', () => { expect(observedError).toBe(true) }) - it('normalizes a result that changes to non-JSON data while being snapshotted', async () => { + it('reads each result value once so later getter drift cannot change the snapshot', async () => { const ctx = await setup() ctx.tools.register(echoTool) let reads = 0 @@ -153,15 +153,59 @@ describe('ToolRegistry', () => { callId: CallId('unstable-result'), name: 'echo', arguments: {}, }) + expect(reads).toBe(1) expect(result).toEqual({ callId: CallId('unstable-result'), - content: [{ - type: 'text', text: 'Error: tools/execute must return a stable losslessly JSON-serializable ToolExecutionResult', - }], - isError: true, + content: [{ type: 'text', text: 'safe' }], + isError: false, }) }) + it('reads every top-level execution result field once before validation', async () => { + const ctx = await setup() + ctx.tools.register(echoTool) + const reads = { callId: 0, content: 0, isError: 0, error: 0, additionalContext: 0, meta: 0 } + ctx.on('tools/execute', async exec => Object.defineProperties({}, { + callId: { enumerable: true, get: () => { reads.callId += 1; return reads.callId === 1 ? exec.callId : CallId('drifted') } }, + content: { enumerable: true, get: () => { reads.content += 1; return reads.content === 1 ? [{ type: 'text', text: 'accepted' }] : [] } }, + isError: { enumerable: true, get: () => { reads.isError += 1; return reads.isError !== 1 } }, + error: { enumerable: true, get: () => { reads.error += 1; return undefined } }, + additionalContext: { enumerable: true, get: () => { reads.additionalContext += 1; return undefined } }, + meta: { enumerable: true, get: () => { reads.meta += 1; return undefined } }, + }) as ToolExecutionResult) + + const result = await ctx.tools.execute({ + callId: CallId('one-read-result'), name: 'echo', arguments: {}, + }) + + expect(reads).toEqual({ callId: 1, content: 1, isError: 1, error: 1, additionalContext: 1, meta: 1 }) + expect(result).toEqual({ + callId: CallId('one-read-result'), + content: [{ type: 'text', text: 'accepted' }], + isError: false, + }) + }) + + it('rejects an exotic nested result before its prototype can be sanitized', async () => { + const ctx = await setup() + ctx.tools.register(echoTool) + class ExoticText { readonly value = 'not text' } + ctx.on('tools/execute', exec => Promise.resolve({ + callId: exec.callId, + content: [{ type: 'text', text: new ExoticText() }], + isError: false, + } as unknown as ToolExecutionResult)) + + const result = await ctx.tools.execute({ + callId: CallId('exotic-result'), name: 'echo', arguments: {}, + }) + + expect(result.isError).toBe(true) + expect(result.content).toEqual([{ + type: 'text', text: 'Error: tools/execute must return a losslessly JSON-serializable ToolExecutionResult', + }]) + }) + it('returns isError results for unknown tools and throwing tools', async () => { const ctx = await setup() ctx.tools.register({ @@ -729,6 +773,29 @@ describe('ToolRegistry', () => { expect(observedError).toBe(true) }) + it('rejects non-JSON data at the defensive final-result notification boundary', async () => { + const ctx = await setup() + ctx.tools.register(echoTool) + let execution: ToolExecution | undefined + ctx.on('tools/execute', async (exec, next) => { + execution = exec + return next() + }) + await ctx.tools.execute({ callId: CallId('capture-execution'), name: 'echo', arguments: {} }) + if (execution === undefined) throw new Error('test fixture did not capture the execution') + + const internal = ctx.tools as unknown as { + notifyResult(exec: ToolExecution, result: ToolExecutionResult): Promise + } + const invalid = { + callId: CallId('capture-execution'), + content: new Map() as unknown as ToolExecutionResult['content'], + isError: false, + } + await expect(internal.notifyResult(execution, invalid)) + .rejects.toThrow('tool result notification must be losslessly JSON-serializable') + }) + it.each([ { name: 'non-object result', @@ -780,6 +847,11 @@ describe('ToolRegistry', () => { replacement: { kind: 'defer' }, message: 'tools/post-execute must return an accept or block decision', }, + { + name: 'non-JSON decision', + replacement: { kind: 'accept', content: new Map() }, + message: 'tools/post-execute must return a losslessly JSON-serializable decision', + }, ])('normalizes a tools/post-execute $name', async ({ replacement, message }) => { const ctx = await setup() ctx.tools.register(echoTool) @@ -886,7 +958,7 @@ describe('ToolRegistry', () => { expect(ctx.tools.get('invalid-parameters')).toBeUndefined() }) - it('rejects tool parameters that change to non-JSON data while being snapshotted', async () => { + it('reads nested tool parameters once into the accepted snapshot', async () => { const ctx = await setup() let reads = 0 const parameters = Object.defineProperty({}, 'properties', { @@ -898,8 +970,58 @@ describe('ToolRegistry', () => { ...echoTool, name: 'unstable-parameters', parameters, - })).toThrow('tool parameters must be stable losslessly JSON-serializable data') - expect(ctx.tools.get('unstable-parameters')).toBeUndefined() + })).not.toThrow() + expect(reads).toBe(1) + expect(ctx.tools.get('unstable-parameters')?.parameters).toEqual({ properties: {} }) + }) + + it('reads a top-level parameters accessor once so validation and storage use one value', async () => { + const ctx = await setup() + const accepted = { type: 'object', properties: { accepted: { type: 'string' } } } + class DriftedParameters { + readonly type = 'object' + readonly properties = { drifted: { type: 'number' } } + } + let reads = 0 + const definition = { ...echoTool, name: 'top-level-parameters' } + Object.defineProperty(definition, 'parameters', { + enumerable: true, + get: () => { + reads += 1 + return reads === 1 ? accepted : new DriftedParameters() + }, + }) + + ctx.tools.register(definition) + + expect(reads).toBe(1) + expect(ctx.tools.get('top-level-parameters')?.parameters).toEqual(accepted) + }) + + it('rejects malformed fixed definition fields without freezing caller objects', async () => { + const ctx = await setup() + const badName = { value: 'object-name' } + const badDescription = { value: 'object-description' } + const badTimeout = { value: 100 } + + expect(() => ctx.tools.register({ ...echoTool, name: badName as unknown as string })) + .toThrow('tool name must be a string') + expect(() => ctx.tools.register({ ...echoTool, name: 'bad-description', description: badDescription as unknown as string })) + .toThrow('description must be a string') + expect(() => ctx.tools.register({ ...echoTool, name: 'bad-timeout', timeoutMs: badTimeout as unknown as number })) + .toThrow('timeoutMs must be a positive finite number') + expect(() => ctx.tools.register({ ...echoTool, name: 'zero-timeout', timeoutMs: 0 })) + .toThrow('timeoutMs must be a positive finite number') + expect(() => ctx.tools.register({ ...echoTool, name: 'bad-execute', execute: { bind() {} } as unknown as typeof echoTool.execute })) + .toThrow('execute must be a function') + expect(() => ctx.tools.register({ ...echoTool, name: 'bad-present-call', presentCall: 1 as unknown as NonNullable })) + .toThrow('presentCall must be a function') + expect(() => ctx.tools.register({ ...echoTool, name: 'bad-present-result', presentResult: 1 as unknown as NonNullable })) + .toThrow('presentResult must be a function') + expect(Object.isFrozen(badName)).toBe(false) + expect(Object.isFrozen(badDescription)).toBe(false) + expect(Object.isFrozen(badTimeout)).toBe(false) + expect(ctx.tools.schemas()).toEqual([]) }) it('snapshots callbacks while preserving their registration-time method receiver', async () => { @@ -1094,6 +1216,101 @@ describe('defineTool / schema DSL', () => { expect(result.content).toEqual([{ type: 'text', text: 'HELLO' }]) }) + it('reads defineTool options once and keeps wire and runtime schemas on one detached snapshot', async () => { + const accepted: SchemaSpec = { value: { type: 'string', required: true, enum: ['accepted'] } } + const drifted: SchemaSpec = { count: { type: 'number', required: true } } + const reads = { + name: 0, + description: 0, + parameters: 0, + timeoutMs: 0, + execute: 0, + presentCall: 0, + presentResult: 0, + } + const options = {} as DefineToolOptions + Object.defineProperties(options, { + name: { enumerable: true, get: () => { reads.name += 1; return reads.name === 1 ? 'accepted' : 'drifted' } }, + description: { enumerable: true, get: () => { reads.description += 1; return reads.description === 1 ? 'accepted description' : 'drifted description' } }, + parameters: { enumerable: true, get: () => { reads.parameters += 1; return reads.parameters === 1 ? accepted : drifted } }, + timeoutMs: { enumerable: true, get: () => { reads.timeoutMs += 1; return reads.timeoutMs === 1 ? 250 : 0 } }, + execute: { + enumerable: true, + get: () => { + reads.execute += 1 + return (args: Record) => Promise.resolve([{ type: 'text' as const, text: String(args['value']) }]) + }, + }, + presentCall: { + enumerable: true, + get: () => { + reads.presentCall += 1 + return (args: Record) => ({ card: 'generic' as const, title: String(args['value']) }) + }, + }, + presentResult: { + enumerable: true, + get: () => { + reads.presentResult += 1 + return (args: Record) => ({ card: 'generic' as const, title: String(args['value']) }) + }, + }, + }) + + const tool = defineTool(options) + accepted.value!.type = 'number' + accepted.value!.enum!.push('mutated') + + expect(tool).toMatchObject({ + name: 'accepted', + description: 'accepted description', + timeoutMs: 250, + parameters: { + type: 'object', + properties: { value: { type: 'string', enum: ['accepted'] } }, + required: ['value'], + }, + }) + await expect(tool.execute({ value: 'accepted' }, {} as ToolExecution)) + .resolves.toEqual([{ type: 'text', text: 'accepted' }]) + expect(tool.presentCall?.({ value: 'accepted' })).toEqual({ card: 'generic', title: 'accepted' }) + expect(tool.presentResult?.( + { value: 'accepted' }, + { content: [], isError: false }, + )).toEqual({ card: 'generic', title: 'accepted' }) + expect(reads).toEqual({ + name: 1, + description: 1, + parameters: 1, + timeoutMs: 1, + execute: 1, + presentCall: 1, + presentResult: 1, + }) + }) + + it('rejects an exotic defineTool schema before it can be normalized for the wire', () => { + class ExoticDefault { readonly value = 'not JSON' } + + expect(() => defineTool({ + name: 'exotic-schema', + description: 'must reject exotic defaults', + parameters: { + value: { type: 'string', default: new ExoticDefault() }, + }, + execute: () => Promise.resolve([]), + })).toThrow(/parameters must be losslessly JSON-serializable/) + }) + + it('rejects a malformed defineTool spec whose generated wire schema is not JSON', () => { + expect(() => defineTool({ + name: 'malformed-schema', + description: 'missing property type', + parameters: { value: {} } as unknown as SchemaSpec, + execute: () => Promise.resolve([]), + })).toThrow(/generated parameters must be losslessly JSON-serializable/) + }) + it('type-level: InferArgs maps required properties to non-optional', () => { // Compile-time check: if this compiles, InferArgs is correct. // args.a is string (required), args.b is number|undefined (optional). diff --git a/packages/session-persistence/session-persistence-jsonl/README.md b/packages/session-persistence/session-persistence-jsonl/README.md index 9a76381614..990ad2fcc4 100644 --- a/packages/session-persistence/session-persistence-jsonl/README.md +++ b/packages/session-persistence/session-persistence-jsonl/README.md @@ -29,4 +29,4 @@ The JSONL durable session-persistence backend — a concrete `SessionPersistence ## Write path -The plugin generalizes the example `session-jsonl.ts`: it subscribes to `session/created` (capture the header; persist a fork's seed once), `session/event` (snapshot each event when buffering — the live `session.events` object is mutable), and `session/flush`/dispose (drain the write-behind buffer through `append`). A per-session write cursor means a resumed session never re-appends already-stored events. Existing live sessions are seeded on plugin apply (HMR does not replay `session/created`). All backend operations for one session are serialized, and disposal awaits quiescence (every init + final drain) before returning, so no write lands after teardown. +The plugin generalizes the example `session-jsonl.ts`: it subscribes to `session/created` (capture the header; persist a fork's seed once), `session/event` (copy each already-frozen event into the persistence-owned write-behind buffer), and `session/flush`/dispose (drain that buffer through `append`). A per-session write cursor means a resumed session never re-appends already-stored events. Existing live sessions are seeded on plugin apply (HMR does not replay `session/created`). All backend operations for one session are serialized, and disposal awaits quiescence (every init + final drain) before returning, so no write lands after teardown. diff --git a/packages/session-persistence/session-persistence-sqlite/README.md b/packages/session-persistence/session-persistence-sqlite/README.md index c14d3a70ea..082b60af88 100644 --- a/packages/session-persistence/session-persistence-sqlite/README.md +++ b/packages/session-persistence/session-persistence-sqlite/README.md @@ -27,4 +27,4 @@ interface Config { ## Write path -Like the JSONL backend, the plugin also installs the `session/event` → buffer → `session/flush` drain: it snapshots each event when buffered (the live `session.events` object is mutable), persists a fork's seed once on `session/created`, keeps a per-session write cursor so a resumed session never re-appends stored events, and seeds existing live sessions on apply (HMR does not replay `session/created`). Dispose awaits every in-flight init + final drain and then closes the database, so no write lands after teardown. +Like the JSONL backend, the plugin also installs the `session/event` → buffer → `session/flush` drain: it copies each already-frozen event into a persistence-owned buffer, persists a fork's seed once on `session/created`, keeps a per-session write cursor so a resumed session never re-appends stored events, and seeds existing live sessions on apply (HMR does not replay `session/created`). Dispose awaits every in-flight init + final drain and then closes the database, so no write lands after teardown. diff --git a/packages/session-persistence/session-persistence/README.md b/packages/session-persistence/session-persistence/README.md index 8bd3fed568..bf7da03757 100644 --- a/packages/session-persistence/session-persistence/README.md +++ b/packages/session-persistence/session-persistence/README.md @@ -17,7 +17,7 @@ The persisted unit IS the existing `SessionEvent` (event-sourced model — the l - **Append-only; a crashed turn is closed, not truncated.** Committed events (at or below a flushed `turn/end`) are never rewritten. A crash can leave an unclosed final turn whose events are real and possibly large; `load` preserves them and durably appends synthetic closers (an error `tool/result` per unanswered `tool-call`, then `step/end?`+`turn/end {interrupted}`) to balance the log and keep the rehydrated history a valid provider transcript. Only a never-fully-written torn tail fragment is discarded. - **Contiguous seq.** `load` rejects a `seq` gap/parse error in the MIDDLE of the log; `append`'s first `seq` must equal the stored next-seq. -- **JSON-serializable data.** `append` rejects non-serializable `event.data`; backends snapshot each event when buffering (the live `session.events` object is mutable). +- **JSON-serializable data.** `append` materializes each direct/replay batch through the shared one-pass lossless-JSON boundary. Live `Session` events are already deep-frozen, but the write coordinator still copies each event into a persistence-owned buffer. - **Durability.** `append` returns only once the batch is durable. ## The write coordinator diff --git a/packages/session-persistence/session-persistence/src/coordinator.ts b/packages/session-persistence/session-persistence/src/coordinator.ts index 0180999842..b1fc118a21 100644 --- a/packages/session-persistence/session-persistence/src/coordinator.ts +++ b/packages/session-persistence/session-persistence/src/coordinator.ts @@ -25,9 +25,9 @@ */ import { Context } from 'cordis' -import { interruptedTurnClosers, SESSION_FORMAT_VERSION } from '@deepseek-ai/dsh-session' +import { interruptedTurnClosers, SESSION_FORMAT_VERSION, snapshotJsonValue } from '@deepseek-ai/dsh-session' import type { Session, SessionEvent, SessionId, SessionHeader } from '@deepseek-ai/dsh-session' -import { assertSerializable, seedCoversPrefix } from './index.ts' +import { seedCoversPrefix } from './index.ts' /** * A stored session's durable prefix as read back from a backend: its @@ -186,14 +186,18 @@ export class PersistenceCoordinator { /** * Register a new session's metadata (lazy: no physical write until the first * {@link append}). Rejects if the id is already tracked or already persisted. - * @param meta - the immutable header (id, version, cwd, lineage) to record; snapshotted at call time. + * @param meta - the header (id, version, cwd, lineage) to record; materialized + * as a detached lossless-JSON snapshot at call time. */ create(meta: SessionHeader): Promise { // Snapshot the metadata at call time: the op runs later (behind the // per-session chain) and the snapshot is stored as the lazy state, so keeping // the caller's object by reference would let a later mutation of `id`/`cwd` // register under one key but materialize under a different path/header. - const snapshot: SessionHeader = { ...meta } + const snapshot = snapshotJsonValue(meta) + if (snapshot === undefined) { + return Promise.reject(new TypeError('session metadata must be losslessly JSON-serializable')) + } return this.serialize(snapshot.id, () => this.createCore(snapshot)) } @@ -212,23 +216,25 @@ export class PersistenceCoordinator { this.states.set(meta.id, { meta, cursor: 0, materialized: false }) } - // `async` so the synchronous validate/clone below reject (not throw) per the - // Promise contract — callers use `await expect(...).rejects`. + // `async` so synchronous materialization failures below reject (not throw) per + // the Promise contract — callers use `await expect(...).rejects`. /** * Durably persist a batch of events. Honors the append-only and contiguous-seq * contracts; rejects non-JSON-serializable `event.data`. * @param id - the session the batch belongs to. - * @param events - the contiguous batch to persist, in seq order; deep-cloned at call time. + * @param events - the contiguous batch to persist, in seq order; materialized + * as a detached lossless-JSON snapshot at call time. */ async append(id: SessionId, events: readonly SessionEvent[]): Promise { - // Validate serializability BEFORE cloning so a bad event surfaces the typed - // error rather than an opaque DataCloneError from structuredClone. - assertSerializable(events) - // Deep-snapshot the batch HERE, before the op waits behind the per-session - // chain: a caller that mutates a live array (e.g. session.events) — or an - // event inside it — before the op runs would otherwise have those changes - // persisted. The clone is taken synchronously (at call time). - const batch = events.map(e => structuredClone(e)) + // Validate and deep-snapshot the complete batch HERE, in one traversal, + // before the op waits behind the per-session chain. A check followed by + // structuredClone would reread accessors and could sanitize an exotic value + // into an apparently valid record; the single-pass materializer makes the + // checked value exactly the value persisted. + const batch = snapshotJsonValue(events) + if (batch === undefined) { + throw new TypeError('session event batch is not losslessly JSON-serializable because it contains non-JSON-serializable data') + } return this.serialize(id, () => this.appendCore(id, batch)) } @@ -338,9 +344,10 @@ export class PersistenceCoordinator { // promise so flush/dispose can await it (onCreated is async). ctx.on('session/created', (session) => { void this.initFor(session) }) - // Snapshot + buffer every event (the live object is mutable; clone so a later - // in-place mutation cannot rewrite a buffered event). Serializability is - // guaranteed at the source (Session.append), so structuredClone is safe. + // Session emits an owned frozen event. Keep a persistence-owned copy anyway + // so the write-behind queue owns exactly the record it will flush rather than + // retaining a product-layer record by identity. Serializability is guaranteed + // at the source, so structuredClone is safe. ctx.on('session/event', (session, event) => { let buffer = this.buffers.get(session) if (!buffer) this.buffers.set(session, buffer = []) @@ -391,8 +398,8 @@ export class PersistenceCoordinator { const existing = this.inits.get(session) if (existing) return existing // Snapshot the seed SYNCHRONOUSLY — initFor runs inside the `session/created` - // emit, before any later `append` adds non-seed events. A clone freezes it - // against later mutation of the live event objects. + // emit, before any later append invalidates the public array snapshot. Events + // are already frozen; cloning gives persistence independent ownership. const seed = session.events.map(e => structuredClone(e)) const p = this.onCreated(session, seed) // Attach a no-op rejection handler so a failing init does not surface as an diff --git a/packages/session-persistence/session-persistence/src/index.ts b/packages/session-persistence/session-persistence/src/index.ts index 1588ed2526..b03691d17b 100644 --- a/packages/session-persistence/session-persistence/src/index.ts +++ b/packages/session-persistence/session-persistence/src/index.ts @@ -22,7 +22,7 @@ */ import { Context, Service } from 'cordis' -import { isJsonValue } from '@deepseek-ai/dsh-session' +import { snapshotJsonValue } from '@deepseek-ai/dsh-session' import type { SessionEvent, SessionId, SessionHeader } from '@deepseek-ai/dsh-session' // Re-export the metadata vocabulary so consumers import it from the seam. @@ -58,16 +58,16 @@ export function seedCoversPrefix(seed: readonly SessionEvent[], prefix: readonly } /** - * Reject non-JSON-serializable event data before a backend serializes a batch. - * Live session appends already enforce this; persistence append paths also - * accept replay/fork batches that may bypass a live session instance. - * @param events - the batch to validate; throws naming the offending event's type and seq. + * Reject a batch that is not wholly losslessly JSON-serializable. Live session + * appends already enforce this; persistence append paths also accept replay or + * direct batches that may bypass a live session instance. Validation uses the + * same one-pass materializer as the coordinator, so getters are read once. + * @param events - the complete event batch to validate. */ export function assertSerializable(events: readonly SessionEvent[]): void { - for (const event of events) { - if (!isJsonValue(event.data)) { - throw new Error(`event "${event.type}" carries non-JSON-serializable data (seq ${event.seq})`) - } + const snapshot = snapshotJsonValue(events) + if (snapshot === undefined) { + throw new Error('session event batch is not losslessly JSON-serializable because it contains non-JSON-serializable data') } } @@ -90,11 +90,11 @@ export function assertSerializable(events: readonly SessionEvent[]): void { * {@link load} rejects a parse error or a `seq` gap in the COMMITTED region * (unloadable); {@link append}'s first event `seq` MUST equal the backend's * stored next-seq (after `load` has balanced any interrupted turn). - * - **JSON-serializable data.** `SessionEventMap` is merge-extensible and - * `event.data` is typed only as `SessionEventMap[K]`, so {@link append} - * REJECTS non-JSON-serializable data with an error naming the offending - * event type. A backend snapshots (serializes/clones) each event when it - * buffers, since `session.events` hands out the live mutable object. + * - **JSON-serializable events.** `SessionEventMap` is merge-extensible, so + * {@link append} materializes each complete batch through the shared + * lossless-JSON boundary before buffering it. The public `session.events` + * view is immutable, but persistence still snapshots direct/replay callers at + * this independent trust boundary. * - **Durability.** {@link append} returns only once the batch is durable * (the file backend fsyncs; a DB commits). {@link create} MAY defer the * physical write until the first {@link append} (lazy materialization). diff --git a/packages/session-persistence/session-persistence/tests/contract.ts b/packages/session-persistence/session-persistence/tests/contract.ts index 9f2facb827..789aa72c91 100644 --- a/packages/session-persistence/session-persistence/tests/contract.ts +++ b/packages/session-persistence/session-persistence/tests/contract.ts @@ -245,7 +245,7 @@ export function runPersistenceContract(name: string, make: () => Promise Promise< } }) - it('snapshot-on-buffer: mutating an event after session/event does not corrupt the persisted copy', async () => { + it('source-frozen events cannot be mutated after buffering and persist unchanged', async () => { const fix = await makeFixture() const { ctx, fiber } = await freshCtx(fix) try { const session = ctx.sessions.create(SessionId('mutate'), { meta: { cwd: WORK } }) const ev = session.append('user/message', { content: [{ type: 'text', text: 'original' }], source: { kind: 'user' } }, { surfaceOp: 'append' }) - // Mutate the live event object AFTER it was buffered by session/event. - ;(ev.data as { content: { type: 'text'; text: string }[] }).content[0]!.text = 'HACKED' + expect(() => { + ;(ev.data as { content: { type: 'text'; text: string }[] }).content[0]!.text = 'HACKED' + }).toThrow(TypeError) session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) session.append('turn/end', { turn: 1, reason: { kind: 'completed' } }) await ctx.parallel('session/flush', session) diff --git a/packages/session-persistence/session-persistence/tests/persistence.spec.ts b/packages/session-persistence/session-persistence/tests/persistence.spec.ts index 4e4cf67822..9c766d4b66 100644 --- a/packages/session-persistence/session-persistence/tests/persistence.spec.ts +++ b/packages/session-persistence/session-persistence/tests/persistence.spec.ts @@ -158,6 +158,17 @@ describe('SessionPersistence service registration', () => { expect(loaded.events).toHaveLength(6) await fiber.dispose() }) + + it('rejects non-JSON session metadata before registering lazy state', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const fiber = await ctx.plugin(MemoryPersistence) + const invalid = { ...meta('invalid-meta'), createdAt: 1n as unknown as number } + + await expect(ctx.sessionPersistence.create(invalid)) + .rejects.toThrow('session metadata must be losslessly JSON-serializable') + await fiber.dispose() + }) }) describe('shared persistence helpers', () => { @@ -187,10 +198,10 @@ describe('shared persistence helpers', () => { expect(() => { assertSerializable(oneTurnLog()) }).not.toThrow() }) - it('rejects non-JSON-serializable event data with type and seq context', () => { + it('rejects a batch containing non-JSON-serializable event data', () => { const bad = [ { type: 'user/message', seq: 0, time: 1, data: { content: 1n } }, ] as unknown as SessionEvent[] - expect(() => { assertSerializable(bad) }).toThrow(/"user\/message".*seq 0/) + expect(() => { assertSerializable(bad) }).toThrow(/batch is not losslessly JSON-serializable/) }) }) diff --git a/packages/skill/skill/README.md b/packages/skill/skill/README.md index 33d16e1b69..b035acf767 100644 --- a/packages/skill/skill/README.md +++ b/packages/skill/skill/README.md @@ -9,9 +9,9 @@ This package owns the `ctx.skills` interface. It does not know whether skills co ### Public API - `ctx.skills.registerProvider(provider): () => Promise | void` Registers a provider by unique `provider.name`. Duplicate provider names throw, and `runtime` is reserved for `ctx.skills.register(...)`. The registry snapshots the name and callback identities at registration, so replacing those fields later cannot change lookup or HMR cleanup; callbacks remain bound to the original provider object and can still read its mutable state. The registration is effect-scoped and HMR-safe, and the exact Cordis disposer supports ordered composite teardown. -- `ctx.skills.list({ cwd?, signal? })` Returns model-invocable skill summaries for the current workspace, merged across providers and sorted by name. -- `ctx.skills.get(name, { cwd?, signal? })` Returns the full winning skill, including disabled-for-model skills. -- `ctx.skills.register(skill): () => Promise | void` Registers a runtime embedded skill. Same-name runtime registrations are first-wins: a duplicate logs a warning and gets a no-op disposer. Successful registrations return the exact Cordis disposer for ordered composite teardown. +- `ctx.skills.list({ cwd?, signal? })` Snapshots the lookup options, then returns detached model-invocable summaries for the current workspace, merged across providers and sorted by name. +- `ctx.skills.get(name, { cwd?, signal? })` Uses one lookup-options snapshot to select and load the winner, rechecks cancellation after discovery or a cache hit, races provider loading against the same signal, then returns a detached full definition, including disabled-for-model skills. +- `ctx.skills.register(skill): () => Promise | void` Registers a detached runtime embedded skill. Same-name runtime registrations are first-wins: a duplicate logs a warning and gets a no-op disposer. Successful registrations return the exact Cordis disposer for ordered composite teardown. ### Config @@ -21,13 +21,15 @@ This package owns the `ctx.skills` interface. It does not know whether skills co ## Provider Contract -A provider registers synchronously from its `apply()` and returns `SkillCandidate[]` from `list(options)` when discovery is requested. Registration copies `name` and binds the current `list` and `get` methods once; replacing those fields on the caller-owned object later does not rewrite the live registry entry, and disposal always removes the original name. Remote setup, authentication, and discovery belong in the awaited `list()` call rather than plugin registration. Providers should stop promptly when `options.signal` aborts; the registry also stops awaiting an uncooperative provider so agent cancellation cannot hang prefix composition. The provider later receives the winning candidate back in `get(candidate, options)`. The candidate's `locator` is opaque to the registry, so a local provider can store a file path while a remote provider can store a URL, id, or version token. +A provider registers synchronously from its `apply()` and returns `SkillCandidate[]` from `list(options)` when discovery is requested. Registration copies `name` and binds the current `list` and `get` methods once; replacing those fields on the caller-owned object later does not rewrite the live registry entry, and disposal always removes the original name. Remote setup, authentication, and discovery belong in the awaited `list()` call rather than plugin registration. Providers should stop promptly when `options.signal` aborts; the registry also stops awaiting uncooperative discovery and loading work so agent cancellation cannot hang prefix composition or skill loading. -The registry validates candidate names, descriptions, ranks, and provider ownership. Candidate contract violations fail fast because the provider plugin is malformed; a provider `list()` rejection is treated as a transient source failure, logged, skipped for that request, and not cached. Only completed catalogs are cached, and a provider/runtime revision change during discovery discards the stale result and retries. Duplicate skill names are resolved first-wins by `rank`, provider registration order, then the provider's own local order. The final summary list is sorted by skill `name` for deterministic consumers. +Each public lookup captures `cwd` and the abort-signal identity once before cache or provider work, and providers receive that frozen lookup record. The registry reads each returned candidate once, validates that snapshot, and detaches its resource metadata before caching it. The winning provider receives another detached candidate in `get(candidate, options)`, while `candidate.locator` preserves the exact provider-owned identity originally returned by `list()`; a local provider can therefore use a file-path handle while a remote provider can use a URL, id, or version token. A loaded definition is detached again before it reaches the caller. + +The registry validates fixed provider, candidate, runtime-registration, and loaded-definition fields before detachment: names/descriptions/content use their declared string types, ranks are finite numbers, and `disableModelInvocation` is boolean when present. Caller-owned objects masquerading as scalars are rejected without being frozen. Candidate contract violations fail fast because the provider plugin is malformed; a provider `list()` rejection is treated as a transient source failure, logged, skipped for that request, and not cached. Only completed, registry-owned catalogs are cached, and a provider/runtime revision change during discovery discards the stale result and retries. Duplicate skill names are resolved first-wins by `rank`, provider registration order, then the provider's own local order. The final summary list is sorted by skill `name` for deterministic consumers. ## Runtime Skills -`ctx.skills.register(...)` is a convenience for embedded runtime skills. Runtime skills use rank `250`: project providers can override them, while they override the shipped local provider's custom and user roots. Runtime registration is also first-wins within runtime contributions, so a duplicate contribution cannot remove the active one through its disposer. +`ctx.skills.register(...)` is a convenience for embedded runtime skills. Runtime skills use rank `250`: project providers can override them, while they override the shipped local provider's custom and user roots. Runtime registration detaches the accepted definition and nested resource metadata; later mutation of the registration object or a returned list/get value cannot rewrite the live skill. Registration is also first-wins within runtime contributions, so a duplicate contribution cannot remove the active one through its disposer. ## Consumer boundary diff --git a/packages/skill/skill/src/index.ts b/packages/skill/skill/src/index.ts index 20ac717e9c..f06788cde7 100644 --- a/packages/skill/skill/src/index.ts +++ b/packages/skill/skill/src/index.ts @@ -81,9 +81,10 @@ export type SkillRegistration = Omit & { provider?: /** Caller context used for cwd-sensitive and abortable provider work. */ export interface SkillLookupOptions { - cwd?: string | undefined + /** Workspace selector captured at lookup entry; providers receive a read-only snapshot. */ + readonly cwd?: string | undefined /** Abort discovery or loading work for the current caller. */ - signal?: AbortSignal | undefined + readonly signal?: AbortSignal | undefined } /** Provider interface for one source of skills, such as local directories or a remote registry. */ @@ -101,7 +102,8 @@ export interface SkillProvider { list(options: SkillLookupOptions): Promise /** * Load a complete skill body for a previously listed candidate. - * @param candidate - the winning candidate originally returned by this provider. + * @param candidate - a detached snapshot of the winning candidate; its opaque + * `locator` retains the exact identity originally returned by this provider. * @param options - lookup options; `cwd` selects workspace-sensitive skills and `signal` cancels work. * @returns the full skill body, or `undefined` if it is no longer loadable. */ @@ -194,10 +196,18 @@ export class SkillService extends Service { // replacement of `provider.list`/`provider.get` after registration inert. // In particular, cleanup must never re-read caller-owned `provider.name`: // an HMR host may mutate or reuse that object before its old fiber unloads. + const name = provider.name + // eslint-disable-next-line @typescript-eslint/unbound-method + const inputList = provider.list + // eslint-disable-next-line @typescript-eslint/unbound-method + const inputGet = provider.get + if (typeof name !== 'string') throw new TypeError('skill provider name must be a string') + if (typeof inputList !== 'function') throw new TypeError(`skill provider "${name}" list must be a function`) + if (typeof inputGet !== 'function') throw new TypeError(`skill provider "${name}" get must be a function`) const snapshot: SkillProvider = Object.freeze({ - name: provider.name, - list: provider.list.bind(provider), - get: provider.get.bind(provider), + name, + list: inputList.bind(provider), + get: inputGet.bind(provider), }) const dispose = this.ctx.effect(function* (this: SkillService) { if (snapshot.name === RUNTIME_PROVIDER) { @@ -223,7 +233,9 @@ export class SkillService extends Service { * Register a runtime skill contribution. Runtime registrations are treated as * embedded provider entries with project-over-user priority. Same-name runtime * registrations are first-wins: a duplicate logs a warning and gets a no-op - * disposer so it cannot remove the active contribution. + * disposer so it cannot remove the active contribution. The registry detaches + * the accepted definition, including nested resource metadata, so later caller + * mutation cannot rewrite the live contribution. * @param skill - the complete skill definition to expose for discovery. * @returns the exact Cordis effect disposer that removes this runtime * contribution and invalidates caches; composite effects may yield it @@ -250,12 +262,15 @@ export class SkillService extends Service { } /** - * List model-invocable skill summaries for a workspace. + * List model-invocable skill summaries for a workspace. The lookup options are + * snapshotted before discovery, and every returned summary is detached from the + * cached provider catalog. * @param options - lookup options; `cwd` selects project roots and `signal` cancels discovery. * @returns sorted summaries, excluding skills disabled for model invocation. */ async list(options: SkillLookupOptions = {}): Promise { - return (await this.collect(options)) + const accepted = snapshotLookupOptions(options) + return (await this.collect(accepted)) .map(entry => entry.candidate) .filter(skill => skill.disableModelInvocation !== true) .map(toSummary) @@ -263,20 +278,32 @@ export class SkillService extends Service { } /** - * Load one full skill definition by name. + * Load one full skill definition by name. One lookup-options snapshot selects + * and loads the winner; the provider receives detached candidate metadata with + * its opaque locator identity preserved, and the returned definition is also + * detached from provider-owned data. Cancellation is rechecked after catalog + * selection (including a cache hit), and provider loading is raced against the + * same signal so an uncooperative provider cannot hang the caller. * @param name - kebab-case skill name. * @param options - lookup options; `cwd` selects workspace-sensitive skills and `signal` cancels work. * @returns the full skill, including body content, or `undefined`. */ async get(name: string, options: SkillLookupOptions = {}): Promise { if (!isSkillName(name)) return undefined - const match = (await this.collect(options)).find(entry => entry.candidate.name === name) + const accepted = snapshotLookupOptions(options) + const collected = await this.collect(accepted) + throwIfAborted(accepted.signal) + const match = collected.find(entry => entry.candidate.name === name) if (match === undefined) return undefined - return await match.provider.get(match.candidate, options) + const definition = await waitWithAbort( + match.provider.get(copyCandidate(match.candidate), accepted), + accepted.signal, + ) + return definition === undefined ? undefined : snapshotDefinition(definition) } private async collect(options: SkillLookupOptions): Promise { - options.signal?.throwIfAborted() + throwIfAborted(options.signal) while (true) { const providerRevision = this.providerRevision const runtimeRevision = this.runtimeRevision @@ -285,7 +312,7 @@ export class SkillService extends Service { if (cached !== undefined) return cached const result = await this.collectFresh(options) - options.signal?.throwIfAborted() + throwIfAborted(options.signal) if (providerRevision !== this.providerRevision || runtimeRevision !== this.runtimeRevision) continue if (result.cacheable) { this.collectCache.set(key, result.entries) @@ -316,7 +343,7 @@ export class SkillService extends Service { } private async listAllCandidates(options: SkillLookupOptions): Promise { - options.signal?.throwIfAborted() + throwIfAborted(options.signal) const candidates: IndexedCandidate[] = [] let cacheable = true let runtimeOrder = 0 @@ -340,9 +367,12 @@ export class SkillService extends Service { this.ctx.logger.warn(`skill provider "${provider.name}" skipped: ${errorMessage(error)}`) } if (listed === undefined) continue + if (!Array.isArray(listed)) { + throw new TypeError(`skill provider "${provider.name}" list() must return an array`) + } for (const candidate of listed) { - validateCandidate(candidate, provider.name) - candidates.push({ candidate, provider, providerOrder: order, localOrder }) + const snapshot = snapshotCandidate(candidate, provider.name) + candidates.push({ candidate: snapshot, provider, providerOrder: order, localOrder }) localOrder += 1 } } @@ -377,28 +407,161 @@ function runtimeCandidate(skill: SkillDefinition): SkillCandidate { } } +/** Read provider candidate data once and detach it while preserving its opaque locator identity. */ +function copyCandidate(candidate: SkillCandidate, providerName?: string): SkillCandidate { + const name = candidate.name + const description = candidate.description + const whenToUse = candidate.whenToUse + const disableModelInvocation = candidate.disableModelInvocation + const source = candidate.source + const provider = candidate.provider + const resourceBase = candidate.resourceBase + const rank = candidate.rank + const locator = candidate.locator + const path = candidate.path + const metadata = candidate.metadata + const accepted: SkillCandidate = { + name, + description, + ...whenToUse !== undefined ? { whenToUse } : {}, + ...disableModelInvocation !== undefined ? { disableModelInvocation } : {}, + source, + provider, + ...resourceBase !== undefined ? { resourceBase } : {}, + rank, + // `locator` is the one deliberately provider-owned capability in a + // candidate. Its exact identity must round-trip back to provider.get(). + locator, + ...path !== undefined ? { path } : {}, + ...metadata !== undefined ? { metadata } : {}, + } + // Validate the exact scalar snapshot before cloning nested data. This keeps a + // malformed candidate's provider-contract error from being masked by an + // unrelated DataCloneError in its metadata. + if (providerName !== undefined) validateCandidate(accepted, providerName) + return { + ...accepted, + ...resourceBase !== undefined ? { resourceBase: structuredClone(resourceBase) } : {}, + ...metadata !== undefined ? { metadata: structuredClone(metadata) } : {}, + } +} + +/** Normalize one provider result into the registry-owned catalog snapshot. */ +function snapshotCandidate(candidate: SkillCandidate, providerName: string): SkillCandidate { + return copyCandidate(candidate, providerName) +} + function validateCandidate(candidate: SkillCandidate, providerName: string): void { + if (typeof candidate.name !== 'string') { + throw new TypeError(`skill provider "${providerName}" returned a non-string skill name`) + } if (!SKILL_NAME.test(candidate.name)) { throw new Error(`skill provider "${providerName}" returned invalid skill name "${candidate.name}"`) } + if (typeof candidate.description !== 'string') { + throw new TypeError(`skill provider "${providerName}" returned skill "${candidate.name}" with a non-string description`) + } if (candidate.description.length === 0) { throw new Error(`skill provider "${providerName}" returned skill "${candidate.name}" without a description`) } - if (!Number.isFinite(candidate.rank)) { + if (candidate.disableModelInvocation !== undefined && typeof candidate.disableModelInvocation !== 'boolean') { + throw new TypeError(`skill provider "${providerName}" returned skill "${candidate.name}" with a non-boolean disableModelInvocation`) + } + if (candidate.whenToUse !== undefined && typeof candidate.whenToUse !== 'string') { + throw new TypeError(`skill provider "${providerName}" returned skill "${candidate.name}" with a non-string whenToUse`) + } + if (typeof candidate.source !== 'string') { + throw new TypeError(`skill provider "${providerName}" returned skill "${candidate.name}" with a non-string source`) + } + if (typeof candidate.rank !== 'number' || !Number.isFinite(candidate.rank)) { throw new Error(`skill provider "${providerName}" returned skill "${candidate.name}" with an invalid rank`) } + if (typeof candidate.provider !== 'string') { + throw new TypeError(`skill provider "${providerName}" returned skill "${candidate.name}" with a non-string provider`) + } if (candidate.provider !== providerName) { throw new Error(`skill provider "${providerName}" returned skill "${candidate.name}" for provider "${candidate.provider}"`) } + if (candidate.path !== undefined && typeof candidate.path !== 'string') { + throw new TypeError(`skill provider "${providerName}" returned skill "${candidate.name}" with a non-string path`) + } } function normalizeRuntimeSkill(skill: SkillRegistration): SkillDefinition { - if (!SKILL_NAME.test(skill.name)) throw new Error(`invalid skill name "${skill.name}"`) - if (skill.description.length === 0) throw new Error(`skill "${skill.name}" requires a description`) + // Read every caller-owned top-level field once so validation and storage use + // one coherent definition even when JavaScript accessors are involved. + const name = skill.name + const description = skill.description + const whenToUse = skill.whenToUse + const disableModelInvocation = skill.disableModelInvocation + const source = skill.source + const inputProvider = skill.provider + const provider = inputProvider === undefined ? RUNTIME_PROVIDER : inputProvider + const resourceBase = skill.resourceBase + const content = skill.content + const path = skill.path + const metadata = skill.metadata + if (typeof name !== 'string') throw new TypeError('runtime skill name must be a string') + if (!SKILL_NAME.test(name)) throw new Error(`invalid skill name "${name}"`) + if (typeof description !== 'string') throw new TypeError(`skill "${name}" description must be a string`) + if (description.length === 0) throw new Error(`skill "${name}" requires a description`) + if (disableModelInvocation !== undefined && typeof disableModelInvocation !== 'boolean') { + throw new TypeError(`skill "${name}" disableModelInvocation must be a boolean`) + } + if (whenToUse !== undefined && typeof whenToUse !== 'string') throw new TypeError(`skill "${name}" whenToUse must be a string`) + if (typeof source !== 'string') throw new TypeError(`skill "${name}" source must be a string`) + if (typeof provider !== 'string') throw new TypeError(`skill "${name}" provider must be a string`) + if (typeof content !== 'string') throw new TypeError(`skill "${name}" content must be a string`) + if (path !== undefined && typeof path !== 'string') throw new TypeError(`skill "${name}" path must be a string`) return { - ...skill, - provider: skill.provider ?? RUNTIME_PROVIDER, - source: skill.source, + name, + description, + ...whenToUse !== undefined ? { whenToUse } : {}, + ...disableModelInvocation !== undefined ? { disableModelInvocation } : {}, + source, + provider, + ...resourceBase !== undefined ? { resourceBase: structuredClone(resourceBase) } : {}, + content, + ...path !== undefined ? { path } : {}, + ...metadata !== undefined ? { metadata: structuredClone(metadata) } : {}, + } +} + +/** Detach a provider-loaded definition before it crosses back to the caller. */ +function snapshotDefinition(skill: SkillDefinition): SkillDefinition { + const name = skill.name + const description = skill.description + const whenToUse = skill.whenToUse + const disableModelInvocation = skill.disableModelInvocation + const source = skill.source + const provider = skill.provider + const resourceBase = skill.resourceBase + const content = skill.content + const path = skill.path + const metadata = skill.metadata + if (typeof name !== 'string') throw new TypeError('loaded skill name must be a string') + if (!SKILL_NAME.test(name)) throw new Error(`loaded skill has invalid name "${name}"`) + if (typeof description !== 'string') throw new TypeError(`loaded skill "${name}" description must be a string`) + if (description.length === 0) throw new Error(`loaded skill "${name}" requires a description`) + if (disableModelInvocation !== undefined && typeof disableModelInvocation !== 'boolean') { + throw new TypeError(`loaded skill "${name}" disableModelInvocation must be a boolean`) + } + if (whenToUse !== undefined && typeof whenToUse !== 'string') throw new TypeError(`loaded skill "${name}" whenToUse must be a string`) + if (typeof source !== 'string') throw new TypeError(`loaded skill "${name}" source must be a string`) + if (typeof provider !== 'string') throw new TypeError(`loaded skill "${name}" provider must be a string`) + if (typeof content !== 'string') throw new TypeError(`loaded skill "${name}" content must be a string`) + if (path !== undefined && typeof path !== 'string') throw new TypeError(`loaded skill "${name}" path must be a string`) + return { + name, + description, + ...whenToUse !== undefined ? { whenToUse } : {}, + ...disableModelInvocation !== undefined ? { disableModelInvocation } : {}, + source, + provider, + ...resourceBase !== undefined ? { resourceBase: structuredClone(resourceBase) } : {}, + content, + ...path !== undefined ? { path } : {}, + ...metadata !== undefined ? { metadata: structuredClone(metadata) } : {}, } } @@ -411,7 +574,7 @@ function toSummary(skill: SkillDefinition | SkillCandidate): SkillSummary { ...disableModelInvocation !== undefined ? { disableModelInvocation } : {}, source, provider, - ...resourceBase !== undefined ? { resourceBase } : {}, + ...resourceBase !== undefined ? { resourceBase: structuredClone(resourceBase) } : {}, } } @@ -441,9 +604,19 @@ function collectCacheKey(options: SkillLookupOptions, providerRevision: number, return JSON.stringify({ cwd: options.cwd, providerRevision, runtimeRevision }) } +/** Capture one lookup identity before any provider or cache async boundary. */ +function snapshotLookupOptions(options: SkillLookupOptions): Readonly { + const cwd = options.cwd + const signal = options.signal + return Object.freeze({ + ...cwd !== undefined ? { cwd } : {}, + ...signal !== undefined ? { signal } : {}, + }) +} + function waitWithAbort(promise: Promise, signal: AbortSignal | undefined): Promise { if (signal === undefined) return promise - signal.throwIfAborted() + throwIfAborted(signal) return new Promise((resolve, reject) => { const cleanup = (): void => { signal.removeEventListener('abort', onAbort) @@ -467,12 +640,28 @@ function waitWithAbort(promise: Promise, signal: AbortSignal | undefined): }) } -function toError(error: unknown): Error { - return error instanceof Error ? error : new Error(String(error)) +/** Throw a total Error for an already-aborted lookup. */ +function throwIfAborted(signal: AbortSignal | undefined): void { + if (signal?.aborted === true) throw toError(signal.reason) } +/** Normalize an arbitrary abort or provider failure without trusting coercion. */ +function toError(error: unknown): Error { + try { + if (error instanceof Error) return error + } catch { + // A hostile proxy may throw during instanceof; fall through to the total renderer. + } + return new Error(errorMessage(error)) +} + +/** Render an arbitrary provider failure without letting coercion escape containment. */ function errorMessage(error: unknown): string { - return String(error) + try { + return String(error) + } catch { + return '[unrenderable thrown value]' + } } export default SkillService diff --git a/packages/skill/skill/tests/skill.spec.ts b/packages/skill/skill/tests/skill.spec.ts index e3b491f690..b47bdb6431 100644 --- a/packages/skill/skill/tests/skill.spec.ts +++ b/packages/skill/skill/tests/skill.spec.ts @@ -165,6 +165,480 @@ describe('SkillService registry', () => { expect(() => ctx.skills.registerProvider(replacement)).not.toThrow() }) + it('rejects malformed provider and candidate scalar fields without freezing caller objects', async () => { + const ctx = new Context() + await ctx.plugin(SkillService) + const badProviderName = { value: 'object-provider' } + expect(() => ctx.skills.registerProvider({ + name: badProviderName as unknown as string, + list: () => Promise.resolve([]), + get: () => Promise.resolve(undefined), + })).toThrow('skill provider name must be a string') + expect(Object.isFrozen(badProviderName)).toBe(false) + expect(() => ctx.skills.registerProvider({ + name: 'bad-list', + list: { bind() {} } as unknown as SkillProvider['list'], + get: () => Promise.resolve(undefined), + })).toThrow('list must be a function') + expect(() => ctx.skills.registerProvider({ + name: 'bad-get', + list: () => Promise.resolve([]), + get: { bind() {} } as unknown as SkillProvider['get'], + })).toThrow('get must be a function') + + const badDescription = { value: 'object-description' } + ctx.skills.registerProvider({ + name: 'bad-candidate', + list: () => Promise.resolve([{ + ...memorySkill('bad-candidate', 'placeholder', 1), + provider: 'bad-candidate', + description: badDescription as unknown as string, + disableModelInvocation: 'false' as unknown as boolean, + }]), + get: () => Promise.resolve(undefined), + }) + await expect(ctx.skills.list()).rejects.toThrow('non-string description') + expect(Object.isFrozen(badDescription)).toBe(false) + + const badBoolean = new Context() + await badBoolean.plugin(SkillService) + badBoolean.skills.registerProvider({ + name: 'bad-boolean', + list: () => Promise.resolve([{ + ...memorySkill('bad-boolean', 'Bad boolean', 1), + provider: 'bad-boolean', + disableModelInvocation: 'false' as unknown as boolean, + }]), + get: () => Promise.resolve(undefined), + }) + await expect(badBoolean.skills.list()).rejects.toThrow('non-boolean disableModelInvocation') + }) + + it('rejects non-array provider results and every malformed candidate scalar', async () => { + const badList = new Context() + await badList.plugin(SkillService) + badList.skills.registerProvider({ + name: 'non-array-list', + list: () => Promise.resolve({} as unknown as SkillCandidate[]), + get: () => Promise.resolve(undefined), + }) + await expect(badList.skills.list()).rejects.toThrow('list() must return an array') + + const cases: { patch: Partial; expected: string }[] = [ + { patch: { name: { value: 'candidate' } as unknown as string }, expected: 'non-string skill name' }, + { patch: { whenToUse: 1 as unknown as string }, expected: 'non-string whenToUse' }, + { patch: { source: { value: 'source' } as unknown as string }, expected: 'non-string source' }, + { patch: { rank: '1' as unknown as number }, expected: 'invalid rank' }, + { patch: { provider: { value: 'provider' } as unknown as string }, expected: 'non-string provider' }, + { patch: { path: 1 as unknown as string }, expected: 'non-string path' }, + ] + for (const [index, { patch, expected }] of cases.entries()) { + const ctx = new Context() + await ctx.plugin(SkillService) + const providerName = `candidate-provider-${index}` + const candidate = { + name: `candidate-${index}`, + description: 'Candidate', + whenToUse: 'Use this candidate.', + disableModelInvocation: false, + provider: providerName, + source: 'test', + rank: 1, + locator: 'candidate', + path: '/skills/candidate/SKILL.md', + ...patch, + } as SkillCandidate + ctx.skills.registerProvider({ + name: providerName, + list: () => Promise.resolve([candidate]), + get: () => Promise.resolve(undefined), + }) + + await expect(ctx.skills.list()).rejects.toThrow(expected) + } + }) + + it('snapshots lookup options before asynchronous discovery and loading', async () => { + const ctx = new Context() + await ctx.plugin(SkillService) + let release: (() => void) | undefined + const gate = new Promise((resolve) => { release = resolve }) + const listCwds: (string | undefined)[] = [] + const getCwds: (string | undefined)[] = [] + ctx.skills.registerProvider({ + name: 'contextual', + async list(options) { + listCwds.push(options.cwd) + await gate + const name = options.cwd === '/workspace/a' ? 'skill-a' : 'skill-b' + return [ + { name, description: name, provider: 'contextual', source: 'test', rank: 1, locator: name }, + { name: 'vanished', description: 'Vanished', provider: 'contextual', source: 'test', rank: 2, locator: 'vanished' }, + ] + }, + async get(candidate, options) { + getCwds.push(options.cwd) + if (candidate.name === 'vanished') return undefined + return { ...candidate, content: `${options.cwd}:${candidate.name}` } + }, + }) + + const listOptions: { cwd: string | undefined } = { cwd: '/workspace/a' } + const pending = ctx.skills.list(listOptions) + listOptions.cwd = '/workspace/b' + release?.() + + expect((await pending).map(skill => skill.name)).toEqual(['skill-a', 'vanished']) + expect((await ctx.skills.list({ cwd: '/workspace/a' })).map(skill => skill.name)).toEqual(['skill-a', 'vanished']) + expect(listCwds).toEqual(['/workspace/a']) + + const getOptions: { cwd: string | undefined } = { cwd: '/workspace/a' } + const loading = ctx.skills.get('skill-a', getOptions) + getOptions.cwd = '/workspace/b' + expect((await loading)?.content).toBe('/workspace/a:skill-a') + expect(await ctx.skills.get('vanished', { cwd: '/workspace/a' })).toBeUndefined() + expect(getCwds).toEqual(['/workspace/a', '/workspace/a']) + }) + + it('rechecks cancellation after cached discovery before provider loading', async () => { + const ctx = new Context() + await ctx.plugin(SkillService) + let getCalls = 0 + ctx.skills.registerProvider({ + name: 'cached', + async list() { + return [{ + name: 'cached-skill', + description: 'Cached skill', + provider: 'cached', + source: 'test', + rank: 1, + locator: 'cached', + }] + }, + async get(candidate) { + getCalls += 1 + return { ...candidate, content: 'Cached body.' } + }, + }) + await ctx.skills.list({ cwd: '/workspace/cache' }) + const controller = new AbortController() + const reason = new Error('cancelled after cached discovery') + + const pending = ctx.skills.get('cached-skill', { + cwd: '/workspace/cache', + signal: controller.signal, + }) + controller.abort(reason) + + await expect(pending).rejects.toBe(reason) + expect(getCalls).toBe(0) + }) + + it('stops waiting for cached provider loading when a hostile abort reason fires', async () => { + const ctx = new Context() + await ctx.plugin(SkillService) + let markStarted: (() => void) | undefined + let release: (() => void) | undefined + let seenSignal: AbortSignal | undefined + const started = new Promise((resolve) => { markStarted = resolve }) + const held = new Promise((resolve) => { + release = () => { + resolve({ + name: 'held-skill', + description: 'Held skill', + provider: 'held', + source: 'test', + content: 'Held body.', + }) + } + }) + ctx.skills.registerProvider({ + name: 'held', + async list() { + return [{ + name: 'held-skill', + description: 'Held skill', + provider: 'held', + source: 'test', + rank: 1, + locator: 'held', + }] + }, + get(_candidate, options) { + seenSignal = options.signal + markStarted?.() + return held + }, + }) + await ctx.skills.list({ cwd: '/workspace/cache' }) + const controller = new AbortController() + const hostileReason = { + [Symbol.toPrimitive]() { + throw new Error('abort reason coercion failed') + }, + } + const pending = ctx.skills.get('held-skill', { + cwd: '/workspace/cache', + signal: controller.signal, + }) + const outcome = pending.then( + () => 'resolved', + (error: unknown) => error instanceof Error && error.message === '[unrenderable thrown value]' + ? 'aborted' + : 'other-error', + ) + await started + controller.abort(hostileReason) + + const settled = await Promise.race([ + outcome, + new Promise<'timeout'>(resolve => setTimeout(() => { resolve('timeout') }, 25)), + ]) + release?.() + await pending.catch(() => undefined) + + expect(seenSignal).toBe(controller.signal) + expect(settled).toBe('aborted') + }) + + it('detaches cached candidates and loaded definitions while preserving locator identity', async () => { + const ctx = new Context() + await ctx.plugin(SkillService) + const locator = { id: 'provider-owned' } + const candidate: SkillCandidate = { + name: 'stable-skill', + description: 'Stable description', + whenToUse: 'When stability matters.', + disableModelInvocation: false, + provider: 'detached', + source: 'test', + resourceBase: { kind: 'opaque', description: 'candidate resources' }, + rank: 1, + locator, + path: '/skills/stable/SKILL.md', + metadata: { owner: 'candidate' }, + } + const definition: SkillDefinition = { + name: 'stable-skill', + description: 'Stable description', + whenToUse: 'When stability matters.', + disableModelInvocation: false, + provider: 'detached', + source: 'test', + resourceBase: { kind: 'opaque', description: 'definition resources' }, + path: '/skills/stable/SKILL.md', + metadata: { owner: 'definition' }, + content: 'Stable body.', + } + let listCalls = 0 + let received: SkillCandidate | undefined + ctx.skills.registerProvider({ + name: 'detached', + async list() { + listCalls += 1 + return [candidate] + }, + async get(loaded) { + received = loaded + return definition + }, + }) + + const first = await ctx.skills.list() + candidate.name = 'Bad_Name' + candidate.description = '' + if (candidate.resourceBase?.kind === 'opaque') candidate.resourceBase.description = 'mutated candidate' + if (candidate.metadata) candidate.metadata.owner = 'mutated candidate' + if (first[0]?.resourceBase?.kind === 'opaque') first[0].resourceBase.description = 'mutated summary' + + const second = await ctx.skills.list() + expect(second).toEqual([expect.objectContaining({ + name: 'stable-skill', + description: 'Stable description', + resourceBase: { kind: 'opaque', description: 'candidate resources' }, + })]) + expect(listCalls).toBe(1) + + const loaded = await ctx.skills.get('stable-skill') + expect(received).not.toBe(candidate) + expect(received?.locator).toBe(locator) + expect(received).toMatchObject({ + name: 'stable-skill', + description: 'Stable description', + resourceBase: { kind: 'opaque', description: 'candidate resources' }, + metadata: { owner: 'candidate' }, + }) + expect(loaded).not.toBe(definition) + if (loaded?.resourceBase?.kind === 'opaque') loaded.resourceBase.description = 'mutated definition output' + if (loaded?.metadata) loaded.metadata.owner = 'mutated definition output' + + expect(await ctx.skills.get('stable-skill')).toMatchObject({ + resourceBase: { kind: 'opaque', description: 'definition resources' }, + metadata: { owner: 'definition' }, + }) + expect(definition).toMatchObject({ + resourceBase: { kind: 'opaque', description: 'definition resources' }, + metadata: { owner: 'definition' }, + }) + }) + + it('detaches runtime registrations and every public resource view', async () => { + const ctx = new Context() + await ctx.plugin(SkillService) + const resourceBase = { kind: 'opaque' as const, description: 'runtime resources' } + const metadata = { owner: 'runtime' } + ctx.skills.register({ + name: 'runtime-skill', + description: 'Runtime', + whenToUse: 'When runtime data is needed.', + disableModelInvocation: false, + source: 'runtime', + resourceBase, + metadata, + content: 'Runtime body.', + }) + ctx.skills.register({ + name: 'z-runtime', + description: 'Second runtime skill', + source: 'runtime', + content: 'Second runtime body.', + }) + resourceBase.description = 'mutated registration' + metadata.owner = 'mutated registration' + + const listed = await ctx.skills.list() + const loaded = await ctx.skills.get('runtime-skill') + expect(listed[0]?.resourceBase).toEqual({ kind: 'opaque', description: 'runtime resources' }) + expect(loaded?.metadata).toEqual({ owner: 'runtime' }) + if (listed[0]?.resourceBase?.kind === 'opaque') listed[0].resourceBase.description = 'mutated list output' + if (loaded?.resourceBase?.kind === 'opaque') loaded.resourceBase.description = 'mutated get output' + if (loaded?.metadata) loaded.metadata.owner = 'mutated get output' + + expect((await ctx.skills.list())[0]?.resourceBase).toEqual({ kind: 'opaque', description: 'runtime resources' }) + expect(await ctx.skills.get('runtime-skill')).toMatchObject({ + resourceBase: { kind: 'opaque', description: 'runtime resources' }, + metadata: { owner: 'runtime' }, + }) + }) + + it('rejects malformed runtime and loaded-definition scalar fields without freezing them', async () => { + const ctx = new Context() + await ctx.plugin(SkillService) + const runtimeDescription = { value: 'runtime-description' } + expect(() => ctx.skills.register({ + name: 'bad-runtime', + description: runtimeDescription as unknown as string, + source: 'runtime', + content: 'body', + })).toThrow('description must be a string') + expect(Object.isFrozen(runtimeDescription)).toBe(false) + expect(() => ctx.skills.register({ + name: 'bad-runtime-boolean', + description: 'Runtime', + disableModelInvocation: 'false' as unknown as boolean, + source: 'runtime', + content: 'body', + })).toThrow('disableModelInvocation must be a boolean') + expect(() => ctx.skills.register({ + name: 'bad-runtime-provider', + description: 'Runtime', + source: 'runtime', + provider: null as unknown as string, + content: 'body', + })).toThrow('provider must be a string') + + const loadedContent = { value: 'loaded-content' } + ctx.skills.registerProvider({ + name: 'bad-definition', + list: () => Promise.resolve([{ + name: 'bad-definition', + description: 'Candidate', + provider: 'bad-definition', + source: 'test', + rank: 1, + locator: 'bad-definition', + }]), + get: candidate => Promise.resolve({ + ...candidate, + content: loadedContent as unknown as string, + }), + }) + await expect(ctx.skills.get('bad-definition')).rejects.toThrow('content must be a string') + expect(Object.isFrozen(loadedContent)).toBe(false) + }) + + it('rejects every other malformed runtime scalar', async () => { + const ctx = new Context() + await ctx.plugin(SkillService) + type Registration = Parameters[0] + const valid: Registration = { + name: 'runtime-validation', + description: 'Runtime validation', + whenToUse: 'Use this runtime skill.', + disableModelInvocation: false, + source: 'runtime', + provider: 'runtime-validation', + content: 'Runtime body.', + path: '/skills/runtime-validation/SKILL.md', + } + const cases: { patch: Partial; expected: string }[] = [ + { patch: { name: { value: 'runtime' } as unknown as string }, expected: 'runtime skill name must be a string' }, + { patch: { whenToUse: 1 as unknown as string }, expected: 'whenToUse must be a string' }, + { patch: { source: { value: 'source' } as unknown as string }, expected: 'source must be a string' }, + { patch: { content: { value: 'content' } as unknown as string }, expected: 'content must be a string' }, + { patch: { path: 1 as unknown as string }, expected: 'path must be a string' }, + ] + for (const { patch, expected } of cases) { + expect(() => ctx.skills.register({ ...valid, ...patch })).toThrow(expected) + } + }) + + it('rejects every malformed scalar in provider-loaded definitions', async () => { + const cases: { patch: Partial; expected: string }[] = [ + { patch: { name: { value: 'loaded' } as unknown as string }, expected: 'loaded skill name must be a string' }, + { patch: { name: 'Bad_Name' }, expected: 'loaded skill has invalid name' }, + { patch: { description: { value: 'description' } as unknown as string }, expected: 'description must be a string' }, + { patch: { description: '' }, expected: 'requires a description' }, + { patch: { disableModelInvocation: 'false' as unknown as boolean }, expected: 'disableModelInvocation must be a boolean' }, + { patch: { whenToUse: 1 as unknown as string }, expected: 'whenToUse must be a string' }, + { patch: { source: { value: 'source' } as unknown as string }, expected: 'source must be a string' }, + { patch: { provider: { value: 'provider' } as unknown as string }, expected: 'provider must be a string' }, + { patch: { content: { value: 'content' } as unknown as string }, expected: 'content must be a string' }, + { patch: { path: 1 as unknown as string }, expected: 'path must be a string' }, + ] + for (const [index, { patch, expected }] of cases.entries()) { + const ctx = new Context() + await ctx.plugin(SkillService) + const providerName = `definition-provider-${index}` + const skillName = `definition-${index}` + ctx.skills.registerProvider({ + name: providerName, + list: () => Promise.resolve([{ + name: skillName, + description: 'Candidate', + provider: providerName, + source: 'test', + rank: 1, + locator: 'definition', + }]), + get: () => Promise.resolve({ + name: skillName, + description: 'Definition', + whenToUse: 'Use this definition.', + disableModelInvocation: false, + provider: providerName, + source: 'test', + content: 'Definition body.', + path: '/skills/definition/SKILL.md', + ...patch, + } as SkillDefinition), + }) + + await expect(ctx.skills.get(skillName)).rejects.toThrow(expected) + } + }) + it('validates provider candidates and invalid registry caps', async () => { const defaultedService = new SkillService(new Context()) expect(await defaultedService.list()).toEqual([]) @@ -282,6 +756,34 @@ describe('SkillService registry', () => { expect(flakyCalls).toBe(3) }) + it('contains a provider rejection whose string coercion throws', async () => { + const ctx = new Context() + await ctx.plugin(SkillService) + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + const hostileFailure = { + toString() { + throw new Error('provider failure coercion failed') + }, + } + ctx.skills.registerProvider({ + name: 'hostile-failure', + list() { + // Deliberately violate the provider contract to prove containment is total. + // eslint-disable-next-line @typescript-eslint/prefer-promise-reject-errors + return Promise.reject(hostileFailure) + }, + async get() { + return undefined + }, + }) + + await expect(ctx.skills.list()).resolves.toEqual([]) + expect(warnings).toEqual([ + 'skill provider "hostile-failure" skipped: [unrenderable thrown value]', + ]) + }) + it('abandons an in-flight catalog when provider registrations change', async () => { const ctx = new Context() await ctx.plugin(SkillService) diff --git a/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts b/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts index f9c7b04a51..66234a012c 100644 --- a/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts +++ b/packages/subagent/subagent-fork/tests/subagent-fork.spec.ts @@ -23,10 +23,9 @@ const emptyStop: StreamChunk[] = [{ type: 'finish', reason: { kind: 'stop' } }] /** * Drives the REAL fork backend with a real loop + scripted mock MODEL + the - * real dsh-invariants plugin. The invariants plugin re-replays a seeded child - * log on `session/created` (its freeze-check), so a malformed (unbalanced) fork - * seed makes these tests THROW — that is the regression guard for the - * completed-turn-prefix boundary. + * real dsh-invariants plugin. The plugin replays a seeded child log on + * `session/created`, so a malformed (unbalanced) fork seed makes these tests + * THROW — that is the regression guard for the completed-turn-prefix boundary. */ async function setup(script: Script) { const ctx = new Context() diff --git a/packages/subagent/subagent-inprocess/README.md b/packages/subagent/subagent-inprocess/README.md index caa7b9b161..e9f7beb540 100644 --- a/packages/subagent/subagent-inprocess/README.md +++ b/packages/subagent/subagent-inprocess/README.md @@ -8,7 +8,7 @@ The shared **in-process subagent run driver**. A library with no provider or imp Runs a child as a child [`Agent`](../../core/agent) on the same cordis context (`ctx.agents`): -1. snapshots the accepted request before asynchronous owner setup: the parent and signal remain identity capabilities but are never reread from the caller-owned record; tool filter, seed, agent options, output schema, and prompt are detached. It computes child depth = `depthOf(parent) + 1` and rejects `request.maxDepth` overflow with `SubagentDepthError`; `outputSchema` is asserted before cloning so a hostile value fails as `OutputSchemaError`, while the prompt passes the session log's lossless-JSON check before and after cloning; +1. reads every public request and seed field once before asynchronous owner setup: the parent and signal remain identity capabilities, while tool filter, seed, agent options, output schema, and prompt are each materialized by the shared one-pass lossless-JSON snapshot. It computes child depth = `depthOf(parent) + 1`, rejects `request.maxDepth` overflow with `SubagentDepthError`, reports an invalid schema as `OutputSchemaError`, and derives both the child prefix and `seedLength` from the same detached seed; 2. first installs provider ownership, then attaches the request abort listener and creates one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves no child or orphaned listener. Async child creation goes through that fiber's `ctx.agents` service with fresh IDs, lineage/seed, inherited model, and an unpublished setup transaction for persona, tool restriction, and structured output. Parent teardown, provider teardown, and manual `run.dispose()` all dispose this exact node, preventing publication after it becomes inactive and awaiting the same quiescence boundary. `startInProcessRun` still returns its `SubagentRun` immediately: `run.started` resolves only after `ctx.agents.create()` has published the child (and rejects if publication never happens), while cancellation during creation is recorded and applied when a child exists; 3. drives the one-shot: `child.send(prompt)` then `await child.whenIdle()` (ordering matters — `send` enqueues synchronously, so `whenIdle` observes the queued work and resolves on the child's `running → idle` transition, never before the turn starts); there is deliberately NO re-prompt for a structured child that finished cleanly without calling `structured_output` — the shortfall maps to an `error` result for the parent; 4. reads the result, scoped to the child's OWN events (everything at or after `seedLength`, so a seeded child that produced no message of its own never returns the seeded parent's last message): the last `assistant/message` content (deep-cloned — the log is frozen) and the last `turn/end.reason` mapped to a `SubagentStopReason`. A structured run surfaces the captured value as `result.structured`; a structured child that finished cleanly WITHOUT ever capturing settles `error` (a clean finish without the demanded result is a failure, not a success with a missing field). diff --git a/packages/subagent/subagent-inprocess/src/index.ts b/packages/subagent/subagent-inprocess/src/index.ts index de3b042fe3..518ea6a8b4 100644 --- a/packages/subagent/subagent-inprocess/src/index.ts +++ b/packages/subagent/subagent-inprocess/src/index.ts @@ -18,9 +18,9 @@ import { randomUUID } from 'node:crypto' import type { Context, Fiber } from 'cordis' import { AgentId, type Agent, type AgentHandle, type AgentOptions } from '@deepseek-ai/dsh-agent' -import { SessionId, isJsonValue, type SessionEvent, type TurnEndReason } from '@deepseek-ai/dsh-session' +import { SessionId, snapshotJsonValue, type SessionEvent, type TurnEndReason } from '@deepseek-ai/dsh-session' import type { ContentBlock } from '@deepseek-ai/dsh-llm' -import { assertSupportedOutputSchema } from '@deepseek-ai/dsh-tools' +import { assertSupportedOutputSchema, OutputSchemaError } from '@deepseek-ai/dsh-tools' import type { SubagentResult, SubagentRun, SubagentStartRequest, SubagentStopReason } from '@deepseek-ai/dsh-subagent' import { attachStructuredRuntime, @@ -125,59 +125,74 @@ export function startInProcessRun( request: SubagentStartRequest, options: InProcessRunOptions, ): SubagentRun { - // Snapshot the accepted request synchronously. The parent and signal are - // identity capabilities (kept live but never reread from the mutable request - // record); every data field is detached before asynchronous owner setup. + // Capture every top-level field once. Parent/signal are identity capabilities; + // every data value is materialized below before asynchronous owner setup. const parent = request.parent const signal = request.signal const persona = request.persona - const toolFilter = request.toolFilter === undefined ? undefined : structuredClone(request.toolFilter) - const seed = options.seed === undefined ? undefined : structuredClone(options.seed) + const inputToolFilter = request.toolFilter + const inputMaxDepth = request.maxDepth + const inputSchema = request.outputSchema + const inputPrompt = request.prompt + const inputAgentOptions = request.agentOptions + const inputSeed = options.seed + const toolFilter = inputToolFilter === undefined ? undefined : snapshotJsonValue(inputToolFilter) + if (inputToolFilter !== undefined && toolFilter === undefined) { + throw new TypeError('subagent tool filter must be losslessly JSON-serializable') + } + const seed = inputSeed === undefined ? undefined : snapshotJsonValue(inputSeed) + if (inputSeed !== undefined && seed === undefined) { + throw new TypeError('subagent seed must be losslessly JSON-serializable') + } const childDepth = depthOf(parent) + 1 - if (request.maxDepth !== undefined && childDepth > request.maxDepth) { - throw new SubagentDepthError(childDepth, request.maxDepth) + if (inputMaxDepth !== undefined && childDepth > inputMaxDepth) { + throw new SubagentDepthError(childDepth, inputMaxDepth) } - // Assert, then snapshot, the schema subset BEFORE any child exists (the - // service has already capability-gated; this rejects a schema outside the - // enforced subset loud). Assertion comes FIRST so a hostile value fails as - // OutputSchemaError, never as structuredClone's raw DataCloneError — the - // asserted subset is plain JSON data, which always clones. The snapshot is - // load-bearing: the caller keeps its reference, so attaching the ORIGINAL - // would let a post-start() mutation drift the enforced schema away from the - // asserted one — the clone (taken synchronously with the assertion, no - // interleaving possible) pins assertion, the model-visible parameters, and - // validateStructuredValue to one isolation-immutable value. - if (request.outputSchema !== undefined) assertSupportedOutputSchema(request.outputSchema) - const schema = request.outputSchema === undefined ? undefined : structuredClone(request.outputSchema) + const requestedAgentOptions = inputAgentOptions === undefined + ? {} + : snapshotJsonValue(inputAgentOptions) + if (requestedAgentOptions === undefined) { + throw new TypeError('subagent agent options must be losslessly JSON-serializable') + } + // Materialize, then assert, the schema subset BEFORE any child exists. The + // single traversal rejects non-JSON data without rereading accessors; the + // detached value then pins assertion, model-visible parameters, and runtime + // validation to one provider-owned schema. Contract failures stay typed as + // OutputSchemaError rather than leaking a materialization detail. + const schema = inputSchema === undefined ? undefined : snapshotJsonValue(inputSchema) + if (inputSchema !== undefined && schema === undefined) { + throw new OutputSchemaError(['schema annotation must be JSON data; the complete schema must be losslessly JSON-serializable']) + } + if (schema !== undefined) assertSupportedOutputSchema(schema) // The accepted request owns a value snapshot, not the caller's mutable - // content array. Validate the same lossless-JSON contract Session.append - // enforces before any child exists, then detach it synchronously so mutation - // during async creation cannot change what is logged or sent to the model. - if (!isJsonValue(request.prompt)) { + // content array. Use the same one-pass boundary Session.append enforces before + // any child exists so later mutation cannot change what is logged or sent. + const prompt = snapshotJsonValue(inputPrompt) + if (prompt === undefined) { throw new TypeError('subagent prompt must be losslessly JSON-serializable') } - const prompt = structuredClone(request.prompt) - if (!isJsonValue(prompt)) { - throw new TypeError('subagent prompt must be stable losslessly JSON-serializable data') - } const childId = AgentId(randomUUID()) // The child's OWN events begin after the seed (fork seeds the parent's // completed-turn prefix; spawn seeds nothing). `readResult` scopes to this // boundary so a child that produces no message of its own never returns the // SEEDED parent's last assistant message as its result. - const seedLength = options.seed?.length ?? 0 + const seedLength = seed?.length ?? 0 const parentHeader = parent.session.header // Inherit the parent's model by default (a child with no model cannot run); // an explicit `request.agentOptions.model` overrides it. The deployment // persona needs no inheritance (a context-wide section both render); a // per-child `request.persona` becomes a SCOPED section of the same name in // the setup below, shadowing the deployment's for this child alone. - const agentOptions: AgentOptions = structuredClone({ - ...parent.options.model !== undefined ? { model: parent.options.model } : {}, - ...request.agentOptions, + const parentModel = parent.options.model + const agentOptions = snapshotJsonValue({ + ...parentModel !== undefined ? { model: parentModel } : {}, + ...requestedAgentOptions, subagentDepth: childDepth, }) + if (agentOptions === undefined) { + throw new TypeError('subagent agent options must be losslessly JSON-serializable') + } // The child's scoped world, composed in the factory's unpublished setup // window. The factory awaits it before inserting or announcing the child, so diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts index dff63486ed..d4267ae009 100644 --- a/packages/subagent/subagent-inprocess/src/structured.ts +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -79,8 +79,8 @@ export interface StructuredAttachment { * agent-creation `setup` window with the child's scope context — every * registration rides the child's fiber and unwinds with the child. * @param childCtx - the child agent's scope context (`setup`'s argument). - * @param schema - the isolation-cloned, already-asserted schema subset to - * enforce (see `assertSupportedOutputSchema` in dsh-tools). + * @param schema - the detached, already-asserted schema subset to enforce (see + * `assertSupportedOutputSchema` in dsh-tools). * @returns the attachment handle (read `captured()` after the child settles). */ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOutputSchema): StructuredAttachment { diff --git a/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts b/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts index 648ee5935f..f8e18ed572 100644 --- a/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts @@ -1,15 +1,15 @@ import { describe, expect, it, vi } from 'vitest' import { Context, type Fiber } from 'cordis' import LlmService from '@deepseek-ai/dsh-llm' -import SessionStore from '@deepseek-ai/dsh-session' +import SessionStore, { type SessionEvent } from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' import AgentRegistry, { AgentId, type Agent } from '@deepseek-ai/dsh-agent' import AgentLoop from '@deepseek-ai/dsh-agent-loop' import * as Invariants from '@deepseek-ai/dsh-invariants' -import SubagentService from '@deepseek-ai/dsh-subagent' +import SubagentService, { type SubagentStartRequest } from '@deepseek-ai/dsh-subagent' import { MockAdapter, textResponse } from '../../../core/agent-loop/tests/mock-adapter.ts' -import { depthOf, SubagentDepthError, startInProcessRun } from '../src/index.ts' +import { depthOf, type InProcessRunOptions, SubagentDepthError, startInProcessRun } from '../src/index.ts' type Script = ConstructorParameters[0] @@ -57,7 +57,7 @@ describe('startInProcessRun', () => { }, {})).toThrow('subagent prompt must be losslessly JSON-serializable') }) - it('rejects a prompt whose getter becomes non-JSON while it is snapshotted', async () => { + it('reads each prompt value once before asynchronous child creation', async () => { const { ctx, parent } = await setup([]) let reads = 0 const prompt = [{ @@ -68,9 +68,91 @@ describe('startInProcessRun', () => { }, }] - expect(() => startInProcessRun(ctx, { prompt, parent }, {})) - .toThrow('subagent prompt must be stable losslessly JSON-serializable data') - expect(reads).toBe(2) + const run = startInProcessRun(ctx, { prompt, parent }, {}) + expect(reads).toBe(1) + await run.dispose() + }) + + it('reads each public request and seed option field once', async () => { + const { ctx, parent } = await setup([]) + const reads = { prompt: 0, toolFilter: 0, maxDepth: 0, outputSchema: 0, agentOptions: 0, persona: 0, seed: 0 } + const request = Object.defineProperties({ parent }, { + prompt: { enumerable: true, get: () => { reads.prompt += 1; return [{ type: 'text', text: 'accepted' }] } }, + toolFilter: { enumerable: true, get: () => { reads.toolFilter += 1; return reads.toolFilter === 1 ? undefined : { deny: ['ghost'] } } }, + maxDepth: { enumerable: true, get: () => { reads.maxDepth += 1; return reads.maxDepth === 1 ? undefined : 0 } }, + outputSchema: { enumerable: true, get: () => { reads.outputSchema += 1; return undefined } }, + agentOptions: { enumerable: true, get: () => { reads.agentOptions += 1; return {} } }, + persona: { enumerable: true, get: () => { reads.persona += 1; return undefined } }, + }) as unknown as SubagentStartRequest + const options = Object.defineProperty({}, 'seed', { + enumerable: true, + get: () => { reads.seed += 1; return reads.seed === 1 ? undefined : [] }, + }) as InProcessRunOptions + + const run = startInProcessRun(ctx, request, options) + + expect(reads).toEqual({ prompt: 1, toolFilter: 1, maxDepth: 1, outputSchema: 1, agentOptions: 1, persona: 1, seed: 1 }) + await run.dispose() + }) + + it('rejects an exotic seed before asynchronous owner setup can sanitize it', async () => { + const { ctx, parent } = await setup([]) + class ExoticSeedEvent { + readonly type = 'turn/start' + readonly seq = 0 + readonly time = 1 + readonly data = { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } } + } + + expect(() => startInProcessRun(ctx, { + prompt: [{ type: 'text', text: 'accepted' }], + parent, + }, { seed: [new ExoticSeedEvent()] as unknown as SessionEvent[] })) + .toThrow(/subagent seed must be losslessly JSON-serializable/) + }) + + it.each([ + { + label: 'tool filter', + overrides: { toolFilter: { deny: [Number.NaN as unknown as string] } }, + message: 'subagent tool filter must be losslessly JSON-serializable', + }, + { + label: 'agent options', + overrides: { agentOptions: { model: Number.NaN as unknown as string } }, + message: 'subagent agent options must be losslessly JSON-serializable', + }, + { + label: 'output schema', + overrides: { + outputSchema: { + type: 'object', + properties: { answer: { type: Number.NaN } }, + } as unknown as NonNullable, + }, + message: 'schema annotation must be JSON data', + }, + ])('rejects non-JSON $label before asynchronous child creation', async ({ overrides, message }) => { + const { ctx, parent } = await setup([]) + + expect(() => startInProcessRun(ctx, { + prompt: [{ type: 'text', text: 'accepted' }], + parent, + ...overrides, + }, {})).toThrow(message) + }) + + it('rejects a non-JSON model inherited from the parent before child creation', async () => { + const { ctx, parent } = await setup([]) + const invalidParent = { + options: { ...parent.options, model: Number.NaN as unknown as string }, + session: parent.session, + } as unknown as Agent + + expect(() => startInProcessRun(ctx, { + prompt: [{ type: 'text', text: 'accepted' }], + parent: invalidParent, + }, {})).toThrow('subagent agent options must be losslessly JSON-serializable') }) it('rejects when the run-owner fiber settles without installing its context', async () => { diff --git a/packages/subagent/subagent/README.md b/packages/subagent/subagent/README.md index e214ba58c6..b068cfe79d 100644 --- a/packages/subagent/subagent/README.md +++ b/packages/subagent/subagent/README.md @@ -21,7 +21,7 @@ Unlike the bash seam (one executor per context, second load throws), **multiple | `registerProvider(provider)` | Register a frozen acceptance snapshot under `provider.name`; later caller mutation cannot change registry behavior or HMR cleanup, while `start` stays bound to the original provider receiver. Throws `SubagentError('DUPLICATE_PROVIDER')` on a name clash. Effect-scoped (HMR-safe); returns the disposer. | | `getProvider(name)` | Look up the frozen registry snapshot (`undefined` if absent). | | `list()` | Registered provider names (insertion order). | -| `start(name, request)` | Resolve the provider (`NO_PROVIDER` if absent), validate every requested START-TIME capability (`UNSUPPORTED_CAPABILITY` for the first unmet one — before any child is created), then delegate to `provider.start`. Emit `subagent/start` only after `run.started` fulfills and the paired `subagent/end` after that started run settles; a pre-publication readiness rejection emits neither. | +| `start(name, request)` | Resolve the provider (`NO_PROVIDER` if absent), read every caller field once into one acceptance snapshot, validate every requested START-TIME capability and scalar value before any child is created, and materialize prompt/schema/options/filter data through a single-pass lossless-JSON snapshot before delegating to `provider.start`. Return a frozen service-owned run wrapper whose provider fields are captured once, whose methods remain bound to the provider handle, and whose `result` is one detached, deeply frozen normalization shared by the caller and telemetry. Emit `subagent/start` only after `run.started` fulfills and the paired `subagent/end` after that started run settles; a pre-publication readiness rejection emits neither. | ## Capabilities: two kinds, discovered two ways @@ -32,12 +32,12 @@ Beside `capabilities` sits one DESCRIPTIVE fact, not validated by the service: ` ## Run lifecycle -`provider.start(request)` returns a `SubagentRun`: a handle with `started` (the publication/readiness promise), `result` (the terminal outcome), `cancel()`, `dispose()`, and the optional runtime methods. `started` resolves only after the provider has established a real child and rejects if the attempt fails or is cancelled first. `result` resolves with a `SubagentResult` (`output`, optional `structured`, `stopReason`) — it does **not** reject on a child-level failure (a model/transport failure resolves with `stopReason: 'error'`), so the consumer maps a non-`completed` reason to an `isError` tool result. The consumer MUST `dispose()` on every path (success, error, abort) to reach child quiescence and avoid leaking an idle child / session. +`provider.start(request)` returns a provider-owned `SubagentRun`; `SubagentService.start` captures that handle once and returns a frozen service-owned wrapper with `started` (the publication/readiness promise), a normalized `result` (the terminal outcome), bound `cancel()` and `dispose()`, and bound optional runtime methods. `started` resolves only after the provider has established a real child and rejects if the attempt fails or is cancelled first. `result` resolves with one detached, deeply frozen `SubagentResult` (`output`, optional `structured`, `stopReason`) that the service and caller share — it does **not** reject on a child-level failure (a model/transport failure resolves with `stopReason: 'error'`), but malformed provider data rejects as an infrastructure contract fault. The consumer maps a non-`completed` reason to an `isError` tool result and MUST `dispose()` on every path (success, error, abort) to reach child quiescence and avoid leaking an idle child / session. -The service also announces provider lifecycle: `subagent/provider-added` (the frozen registry snapshot) fires after a registration and `subagent/provider-removed` (the accepted name) after an unregistration, so a consumer deriving state from a named provider (the model-facing tool wording) mirrors registry membership instead of assuming load order — the cordis Loader starts sibling plugins concurrently, so "listed earlier" does not mean "registered earlier". Run lifecycle is gated by provider readiness: `subagent/start` (payload `SubagentRunInfo`) fires only after `run.started` fulfills, and `subagent/end` (payload `SubagentRunEndInfo`) fires only for that announced run; readiness rejection emits neither. For spawn/fork, the start listener can resolve the published child via `ctx.agents.get(info.id)`; a remote provider need not have a local registry entry. Both events are **observe-only** plain emits. The service observes `result` immediately even while readiness is pending, clones its output before the caller can mutate it, and buffers that end payload until start has fired; a rejecting result cannot become an unhandled detached promise, start always precedes end, and a listener cannot corrupt the caller's result. `subagent/end` carries the cloned output as `lastAssistantMessage` on the settle path and omits it on infrastructure rejection. Any run-affecting decision is out of scope for this observe-only surface. +The service also announces provider lifecycle: `subagent/provider-added` (the frozen registry snapshot) fires after a registration and `subagent/provider-removed` (the accepted name) after an unregistration, so a consumer deriving state from a named provider (the model-facing tool wording) mirrors registry membership instead of assuming load order — the cordis Loader starts sibling plugins concurrently, so "listed earlier" does not mean "registered earlier". Run lifecycle is gated by provider readiness: the service captures the provider handle's public fields once, `subagent/start` (payload `SubagentRunInfo`) fires only after the accepted `started` promise fulfills, and `subagent/end` (payload `SubagentRunEndInfo`) uses the same accepted id and normalized result; readiness rejection emits neither. For spawn/fork, the start listener can resolve the published child via `ctx.agents.get(info.id)`; a remote provider need not have a local registry entry. Both events are **observe-only** plain emits whose service-owned payloads are deeply frozen before per-listener dispatch. The service observes the normalized `result` immediately even while readiness is pending and buffers that end payload until start has fired; a malformed provider result rejects the returned result promise and becomes contained `error` telemetry, a rejection cannot become an unhandled detached promise, start always precedes end, and one listener cannot corrupt either the caller or later listeners. `subagent/end` carries the same frozen output as `lastAssistantMessage` on a valid settle path and omits it on infrastructure or result-contract failure. Any run-affecting decision is out of scope for this observe-only surface. ## Scope (first cut) -The consumer collects **synchronously**: it starts a run and awaits `result`. Steering (`sendMessage`) is part of the contract but intentionally unused. Background / poll / spill semantics are deferred to a future redesign unifying long-running-tool handling across subagents and bash. See the RFC: [docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md](../../../docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md). +The consumer collects **synchronously**: it starts a run and awaits `result`. Steering (`sendMessage`) is part of the contract but intentionally unused. Background, poll, and spill semantics are outside this seam; long-running-tool handling is shared work across subagents and bash. See the RFC: [docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md](../../../docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md). See `src/types.ts` for the full contracts. diff --git a/packages/subagent/subagent/package.json b/packages/subagent/subagent/package.json index eb0dbf8da0..cf1ebf9485 100644 --- a/packages/subagent/subagent/package.json +++ b/packages/subagent/subagent/package.json @@ -25,6 +25,7 @@ "@deepseek-ai/dsh-agent": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", "@deepseek-ai/dsh-scope": "^0.0.1", + "@deepseek-ai/dsh-session": "^0.0.1", "@deepseek-ai/dsh-tools": "^0.0.1", "cordis": "^4.0.0-rc.6" }, @@ -32,6 +33,7 @@ "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", "@deepseek-ai/dsh-scope": "workspace:^", + "@deepseek-ai/dsh-session": "workspace:^", "@deepseek-ai/dsh-tools": "workspace:^", "cordis": "^4.0.0-rc.6" } diff --git a/packages/subagent/subagent/src/index.ts b/packages/subagent/subagent/src/index.ts index e1f4fac594..de376686fd 100644 --- a/packages/subagent/subagent/src/index.ts +++ b/packages/subagent/subagent/src/index.ts @@ -34,10 +34,11 @@ import { Context, Service } from 'cordis' import { scopeTarget } from '@deepseek-ai/dsh-scope' -import { assertSupportedOutputSchema } from '@deepseek-ai/dsh-tools' +import { assertSupportedOutputSchema, OutputSchemaError } from '@deepseek-ai/dsh-tools' import type { Scoped } from '@deepseek-ai/dsh-scope' -import { HarnessError } from '@deepseek-ai/dsh-llm' +import { deepFreeze, HarnessError } from '@deepseek-ai/dsh-llm' import type { ContentBlock } from '@deepseek-ai/dsh-llm' +import { snapshotJsonValue } from '@deepseek-ai/dsh-session' import type { Agent, AgentId } from '@deepseek-ai/dsh-agent' import type { SubagentCapabilities, @@ -115,7 +116,7 @@ declare module 'cordis' { } } -/** Identifying detail for a started subagent run (the `subagent/start` payload). */ +/** Deep-frozen, observe-only identifying detail for a started subagent run. */ export interface SubagentRunInfo { /** The provider that started the run. */ provider: string @@ -123,7 +124,7 @@ export interface SubagentRunInfo { id: AgentId } -/** Outcome detail for a settled subagent run (the `subagent/end` payload). */ +/** Deep-frozen, observe-only outcome detail for a settled subagent run. */ export interface SubagentRunEndInfo { /** The provider that ran it. */ provider: string @@ -186,11 +187,12 @@ export class SubagentService extends Service { // mutate or reuse the provider object before its old fiber unloads. Binding // preserves the provider method's receiver while making replacement of the // public callback field after registration inert. + const inputCapabilities = provider.capabilities const capabilities: SubagentCapabilities = Object.freeze({ - outputSchema: provider.capabilities.outputSchema, - depthLimit: provider.capabilities.depthLimit, - toolFilter: provider.capabilities.toolFilter, - persona: provider.capabilities.persona, + outputSchema: inputCapabilities.outputSchema, + depthLimit: inputCapabilities.depthLimit, + toolFilter: inputCapabilities.toolFilter, + persona: inputCapabilities.persona, }) const snapshot: SubagentProvider = Object.freeze({ name: provider.name, @@ -244,10 +246,16 @@ export class SubagentService extends Service { /** * Start a subagent run on the named provider. Resolves the provider (throws - * `NO_PROVIDER` if absent), validates every requested START-TIME capability + * `NO_PROVIDER` if absent), reads the caller request once into a coherent + * acceptance snapshot, validates every requested START-TIME capability * against {@link SubagentProvider.capabilities} (throws `UNSUPPORTED_CAPABILITY` * for the first unmet one — fail loud, before any child is created), then - * delegates to {@link SubagentProvider.start}, then emits `subagent/start` / + * validates the request's scalar values, materializes model-bound data in one + * lossless-JSON traversal, and delegates the detached request to + * {@link SubagentProvider.start}. The returned handle is a service-owned, + * frozen wrapper: provider fields are captured once, methods stay bound to the + * provider handle, and `result` resolves to one detached, deeply frozen value + * shared by the caller and lifecycle telemetry. Emits `subagent/start` / * `subagent/end` only after the run's readiness boundary fulfills. A provider * that fails before establishing a child emits neither event. * @param name - the provider to run on. @@ -255,32 +263,94 @@ export class SubagentService extends Service { * @returns the live run (its `result` resolves when the child settles). */ start(name: string, request: SubagentStartRequest): SubagentRun { - // Parent is the lifecycle scope identity accepted at start. Never reread it - // from the caller-owned request after the provider/result async boundary, - // or start/end could be dispatched into different agent scopes. - const parent = request.parent const provider = this.providers.get(name) if (!provider) { throw new SubagentError(`no subagent provider registered for "${name}"`, 'NO_PROVIDER') } - this.assertCapabilities(provider, request) - if (request.outputSchema !== undefined) assertSupportedOutputSchema(request.outputSchema) + // Read every top-level field exactly once before capability checks or + // detachment. A stateful accessor must not look absent to validation and then + // appear in the provider request (or vice versa). + const input = this.snapshotStartRequest(request) + const parent = input.parent + this.assertCapabilities(provider, input) + if (input.maxDepth !== undefined && ( + !Number.isSafeInteger(input.maxDepth) + || input.maxDepth < 0 + || Object.is(input.maxDepth, -0) + )) { + throw new TypeError('subagent maxDepth must be a non-negative safe integer') + } + if (input.persona !== undefined && typeof input.persona !== 'string') { + throw new TypeError('subagent persona must be a string') + } + // Model/session-bound values are validated and detached in a single + // recursive pass. A check followed by structuredClone would reread getters + // and could erase an exotic prototype returned only to the clone. + const prompt = snapshotJsonValue(input.prompt) + if (prompt === undefined) { + throw new TypeError('subagent prompt must be losslessly JSON-serializable') + } + const outputSchema = input.outputSchema === undefined + ? undefined + : snapshotJsonValue(input.outputSchema) + if (input.outputSchema !== undefined && outputSchema === undefined) { + throw new OutputSchemaError(['schema annotation must be JSON data; the complete schema must be losslessly JSON-serializable']) + } + if (outputSchema !== undefined) assertSupportedOutputSchema(outputSchema) + const agentOptions = input.agentOptions === undefined + ? undefined + : snapshotJsonValue(input.agentOptions) + if (input.agentOptions !== undefined && agentOptions === undefined) { + throw new TypeError('subagent agent options must be losslessly JSON-serializable') + } + const toolFilter = input.toolFilter === undefined + ? undefined + : snapshotJsonValue(input.toolFilter) + if (input.toolFilter !== undefined && toolFilter === undefined) { + throw new TypeError('subagent tool filter must be losslessly JSON-serializable') + } // Detach every data field before crossing into a provider. Parent/signal // are live identity capabilities and stay exact; the mutable request record // and its arrays/objects are never retained, so every backend (including an // async out-of-process one) observes the request accepted at start. const accepted: SubagentStartRequest = { - prompt: structuredClone(request.prompt), + prompt, parent, - ...request.signal !== undefined ? { signal: request.signal } : {}, - ...request.agentOptions !== undefined ? { agentOptions: structuredClone(request.agentOptions) } : {}, - ...request.outputSchema !== undefined ? { outputSchema: structuredClone(request.outputSchema) } : {}, - ...request.maxDepth !== undefined ? { maxDepth: request.maxDepth } : {}, - ...request.toolFilter !== undefined ? { toolFilter: structuredClone(request.toolFilter) } : {}, - ...request.persona !== undefined ? { persona: request.persona } : {}, + ...input.signal !== undefined ? { signal: input.signal } : {}, + ...agentOptions !== undefined ? { agentOptions } : {}, + ...outputSchema !== undefined ? { outputSchema } : {}, + ...input.maxDepth !== undefined ? { maxDepth: input.maxDepth } : {}, + ...toolFilter !== undefined ? { toolFilter } : {}, + ...input.persona !== undefined ? { persona: input.persona } : {}, } - const run = provider.start(accepted) + const providerRun = provider.start(accepted) + // Provider-owned run objects can be accessor-backed too. Capture every + // public field exactly once, bind methods to the provider's original handle, + // and expose only this service-owned wrapper. The normalized result promise + // is also the one lifecycle telemetry observes, so the caller and observers + // cannot receive different values from stateful accessors. + const id = providerRun.id + const started = providerRun.started + const providerResult = providerRun.result + const cancel = providerRun.cancel.bind(providerRun) + const sendMessage = providerRun.sendMessage?.bind(providerRun) + const dispose = providerRun.dispose.bind(providerRun) + const resume = providerRun.resume?.bind(providerRun) + const result = providerResult.then(value => this.snapshotRunResult(value)) + const run: SubagentRun = Object.freeze({ + id, + started, + result, + cancel, + dispose, + ...sendMessage === undefined + ? {} + : { sendMessage }, + ...resume === undefined + ? {} + : { resume }, + }) // Observe result settlement IMMEDIATELY, before waiting on readiness. A // provider may fail both promises in the same turn; deferring the rejection @@ -296,26 +366,16 @@ export class SubagentService extends Service { // remains observable by the run's consumer, but telemetry must not claim // that a child started. } - void run.result.then( - (result) => { - // Snapshot before the caller's own `await run.result` continuation. Even - // when readiness is still pending, buffering the clone rather than the - // caller-owned result keeps the eventual observe-only event immutable - // with respect to consumer mutation. - let lastAssistantMessage: SubagentResult['output'] | undefined - try { - lastAssistantMessage = structuredClone(result.output) - } catch (error: unknown) { - this.ctx.logger.warn(`subagent: could not clone ${name} output for subagent/end: ${String(error)}`) - } + void result.then( + (value) => { deliverEnd({ provider: name, - id: run.id, - stopReason: result.stopReason, - ...lastAssistantMessage !== undefined ? { lastAssistantMessage } : {}, + id, + stopReason: value.stopReason, + lastAssistantMessage: value.output, }) }, - () => { deliverEnd({ provider: name, id: run.id, stopReason: 'error' }) }, + () => { deliverEnd({ provider: name, id, stopReason: 'error' }) }, ) // Readiness is the publication boundary owned by the provider. For @@ -324,10 +384,10 @@ export class SubagentService extends Service { // per-listener containment, then flush an outcome that settled unusually // early. A readiness rejection is handled here and deliberately emits no // false start/end pair; the result path above remains independently handled. - void run.started.then( + void started.then( () => { readiness = 'started' - this.emitLifecycle('subagent/start', { provider: name, id: run.id }, parent) + this.emitLifecycle('subagent/start', { provider: name, id }, parent) if (pendingEnd !== undefined) { const info = pendingEnd pendingEnd = undefined @@ -342,6 +402,54 @@ export class SubagentService extends Service { return run } + /** Normalize one provider result into the immutable seam value. */ + private snapshotRunResult(value: SubagentResult): SubagentResult { + // Capture every provider-owned field once before validation. In particular, + // lifecycle telemetry must not reread accessors after the caller receives + // the result and observe a different terminal outcome. + const output = value.output + const structured = value.structured + const stopReason = value.stopReason + if (!Array.isArray(output)) { + throw new TypeError('subagent result output must be an array') + } + if (typeof stopReason !== 'string') { + throw new TypeError('subagent result stopReason must be a string') + } + const accepted: SubagentResult = { + output, + ...structured === undefined ? {} : { structured }, + stopReason, + } + const snapshot = snapshotJsonValue(accepted) + if (snapshot === undefined) { + throw new TypeError('subagent result must be losslessly JSON-serializable') + } + return deepFreeze(snapshot) + } + + /** Read one coherent caller request into immutable data properties. */ + private snapshotStartRequest(request: SubagentStartRequest): Readonly { + const prompt = request.prompt + const parent = request.parent + const signal = request.signal + const agentOptions = request.agentOptions + const outputSchema = request.outputSchema + const maxDepth = request.maxDepth + const toolFilter = request.toolFilter + const persona = request.persona + return Object.freeze({ + prompt, + parent, + ...signal !== undefined ? { signal } : {}, + ...agentOptions !== undefined ? { agentOptions } : {}, + ...outputSchema !== undefined ? { outputSchema } : {}, + ...maxDepth !== undefined ? { maxDepth } : {}, + ...toolFilter !== undefined ? { toolFilter } : {}, + ...persona !== undefined ? { persona } : {}, + }) + } + /** * Emit a `subagent/*` lifecycle event with PER-LISTENER containment: dispatch * each subscriber individually and log (never propagate) a thrown one, so one @@ -374,14 +482,15 @@ export class SubagentService extends Service { // parent-scoped listener observes only its own delegations); the // provider-removed registry notification stays unfiltered. The carrier is // args[0] of the dispatch call, exactly as cordis' own emit spells it. + const acceptedInfo = typeof info === 'string' ? info : deepFreeze(info) const dispatchArgs: unknown[] = parent === undefined - ? [name, info] - : [scopeTarget(this, parent), name, info] + ? [name, acceptedInfo] + : [scopeTarget(this, parent), name, acceptedInfo] for (const callback of this.ctx.events.dispatch('emit', dispatchArgs)) { try { - callback(info) + callback(acceptedInfo) } catch (error: unknown) { - this.ctx.logger.warn(`subagent: ${name} listener threw: ${String(error)}`) + this.ctx.logger.warn(`subagent: ${name} listener threw: ${renderThrown(error)}`) } } } @@ -409,4 +518,13 @@ export class SubagentService extends Service { } } +/** Render an arbitrary thrown value without allowing coercion to throw again. */ +function renderThrown(value: unknown): string { + try { + return value instanceof Error ? `${value.name}: ${value.message}` : String(value) + } catch { + return '' + } +} + export default SubagentService diff --git a/packages/subagent/subagent/tests/service.spec.ts b/packages/subagent/subagent/tests/service.spec.ts index 7b9e828c37..ba4b58c2fc 100644 --- a/packages/subagent/subagent/tests/service.spec.ts +++ b/packages/subagent/subagent/tests/service.spec.ts @@ -173,6 +173,16 @@ describe('SubagentService', () => { persona: true, } const provider = new StubProvider('stable', capabilities) + let capabilityReads = 0 + let capabilityValue = capabilities + Object.defineProperty(provider, 'capabilities', { + configurable: true, + get: () => { + capabilityReads += 1 + return capabilityValue + }, + set: (value: SubagentCapabilities) => { capabilityValue = value }, + }) const added: SubagentProvider[] = [] const removed: string[] = [] ctx.on('subagent/provider-added', registered => void added.push(registered)) @@ -184,6 +194,7 @@ describe('SubagentService', () => { pluginCtx.subagents.registerProvider(provider) }, }) + expect(capabilityReads).toBe(1) const accepted = ctx.subagents.getProvider('stable') const mutable = provider as unknown as { @@ -216,7 +227,10 @@ describe('SubagentService', () => { expect(ctx.subagents.list()).toEqual(['stable']) expect(ctx.subagents.getProvider('mutated')).toBeUndefined() + const controller = new AbortController() const run = ctx.subagents.start('stable', baseRequest({ + signal: controller.signal, + agentOptions: { model: 'mock' }, outputSchema: { type: 'object', properties: { answer: { type: 'string' } } }, maxDepth: 2, toolFilter: { deny: ['bash'] }, @@ -277,6 +291,142 @@ describe('SubagentService', () => { ctx.subagents.start('strong', baseRequest({ outputSchema: { type: 'object', properties: { x: { type: 'string' } } }, maxDepth: 1 })) expect(provider.startCount).toBe(1) }) + + it.each([ + { label: 'NaN', value: Number.NaN }, + { label: 'a fraction', value: 1.5 }, + { label: 'a negative integer', value: -1 }, + { label: 'negative zero', value: -0 }, + ])('rejects maxDepth=$label before the provider starts', async ({ value }) => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const provider = new StubProvider('invalid-depth', ALL_CAPS) + ctx.subagents.registerProvider(provider) + + expect(() => ctx.subagents.start('invalid-depth', baseRequest({ maxDepth: value }))) + .toThrow('subagent maxDepth must be a non-negative safe integer') + expect(provider.startCount).toBe(0) + }) + + it('rejects a non-string persona before the provider starts', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const provider = new StubProvider('invalid-persona', { ...ALL_CAPS, persona: true }) + ctx.subagents.registerProvider(provider) + + expect(() => ctx.subagents.start('invalid-persona', baseRequest({ + persona: 42 as unknown as string, + }))).toThrow('subagent persona must be a string') + expect(provider.startCount).toBe(0) + }) + + it('reads an optional capability accessor once so it cannot appear after validation', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + let accepted: SubagentStartRequest | undefined + const provider: SubagentProvider = { + name: 'weak-getter', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: (request) => { + accepted = request + return { + id: AgentId('weak-getter-child'), + started: Promise.resolve(), + result: Promise.resolve({ output: [], stopReason: 'completed' }), + cancel() {}, + async dispose() {}, + } + }, + } + ctx.subagents.registerProvider(provider) + let reads = 0 + const request = baseRequest() + Object.defineProperty(request, 'toolFilter', { + enumerable: true, + get: () => { + reads += 1 + return reads === 1 ? undefined : { deny: ['bash'] } + }, + }) + + ctx.subagents.start('weak-getter', request) + + expect(reads).toBe(1) + expect(accepted?.toolFilter).toBeUndefined() + }) + }) + + it('rejects an exotic public prompt before the provider starts', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const provider = new StubProvider('prompt-boundary') + ctx.subagents.registerProvider(provider) + class ExoticTextBlock { + readonly type = 'text' + readonly text = 'hello' + } + + expect(() => ctx.subagents.start('prompt-boundary', baseRequest({ + prompt: [new ExoticTextBlock()] as unknown as SubagentStartRequest['prompt'], + }))).toThrow('subagent prompt must be losslessly JSON-serializable') + expect(provider.startCount).toBe(0) + }) + + it.each([ + { + label: 'agent options', + overrides: { agentOptions: { model: Number.NaN as unknown as string } }, + message: 'subagent agent options must be losslessly JSON-serializable', + }, + { + label: 'tool filter', + overrides: { toolFilter: { deny: [Number.NaN as unknown as string] } }, + message: 'subagent tool filter must be losslessly JSON-serializable', + }, + { + label: 'output schema', + overrides: { + outputSchema: { + type: 'object', + properties: { answer: { type: Number.NaN } }, + } as unknown as NonNullable, + }, + message: 'schema annotation must be JSON data', + }, + ])('rejects non-JSON $label before the provider starts', async ({ overrides, message }) => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const provider = new StubProvider('invalid-request-data', ALL_CAPS) + ctx.subagents.registerProvider(provider) + + expect(() => ctx.subagents.start('invalid-request-data', baseRequest(overrides))) + .toThrow(message) + expect(provider.startCount).toBe(0) + }) + + it('reads each nested prompt value once into the provider snapshot', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const provider = new StubProvider('unstable-prompt') + ctx.subagents.registerProvider(provider) + let reads = 0 + const block = Object.defineProperties({}, { + type: { enumerable: true, value: 'text' }, + text: { + enumerable: true, + get: () => { + reads += 1 + return reads === 1 ? 'hello' : new Map([['not', 'json']]) + }, + }, + }) + + expect(() => ctx.subagents.start('unstable-prompt', baseRequest({ + prompt: [block] as unknown as SubagentStartRequest['prompt'], + }))).not.toThrow() + expect(reads).toBe(1) + expect(provider.startCount).toBe(1) }) it('emits subagent/start then subagent/end around a run', async () => { @@ -299,6 +449,165 @@ describe('SubagentService', () => { expect(ended).toHaveBeenCalledWith(expect.objectContaining({ provider: 'events', id: run.id, stopReason: 'completed' })) }) + it('captures a provider run once and gives callers and telemetry one normalized result', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const reads = { + id: 0, + started: 0, + result: 0, + cancel: 0, + sendMessage: 0, + dispose: 0, + resume: 0, + output: 0, + structured: 0, + stopReason: 0, + } + const methodReceivers: string[] = [] + const providerResult = Object.defineProperties({}, { + output: { + enumerable: true, + get: () => { + reads.output += 1 + return reads.output === 1 + ? [{ type: 'text', text: 'accepted output' }] + : [{ type: 'text', text: 'drifted output' }] + }, + }, + structured: { + enumerable: true, + get: () => { + reads.structured += 1 + return { verdict: reads.structured === 1 ? 'accepted' : 'drifted' } + }, + }, + stopReason: { + enumerable: true, + get: () => { + reads.stopReason += 1 + return reads.stopReason === 1 ? 'completed' : 'error' + }, + }, + }) as SubagentResult + const providerRun = Object.defineProperties({}, { + id: { + enumerable: true, + get: () => { + reads.id += 1 + return AgentId(reads.id === 1 ? 'accepted-child' : 'drifted-child') + }, + }, + started: { + enumerable: true, + get: () => { + reads.started += 1 + if (reads.started !== 1) throw new Error('started reread') + return Promise.resolve() + }, + }, + result: { + enumerable: true, + get: () => { + reads.result += 1 + if (reads.result !== 1) throw new Error('result reread') + return Promise.resolve(providerResult) + }, + }, + cancel: { + enumerable: true, + get: () => { + reads.cancel += 1 + if (reads.cancel !== 1) throw new Error('cancel reread') + return function (this: SubagentRun): void { + expect(this).toBe(providerRun) + methodReceivers.push('cancel') + } + }, + }, + sendMessage: { + enumerable: true, + get: () => { + reads.sendMessage += 1 + if (reads.sendMessage !== 1) throw new Error('sendMessage reread') + return function (this: SubagentRun): void { + expect(this).toBe(providerRun) + methodReceivers.push('sendMessage') + } + }, + }, + dispose: { + enumerable: true, + get: () => { + reads.dispose += 1 + if (reads.dispose !== 1) throw new Error('dispose reread') + return async function (this: SubagentRun): Promise { + expect(this).toBe(providerRun) + methodReceivers.push('dispose') + } + }, + }, + resume: { + enumerable: true, + get: () => { + reads.resume += 1 + if (reads.resume !== 1) throw new Error('resume reread') + return function (this: SubagentRun): SubagentRun { + expect(this).toBe(providerRun) + methodReceivers.push('resume') + return providerRun + } + }, + }, + }) as SubagentRun + ctx.subagents.registerProvider({ + name: 'stateful-run', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: () => providerRun, + }) + const ended = vi.fn() + ctx.on('subagent/end', ended) + + const run = ctx.subagents.start('stateful-run', baseRequest()) + expect(Object.is(run, providerRun)).toBe(false) + expect(Object.isFrozen(run)).toBe(true) + run.cancel() + run.sendMessage?.([]) + expect(Object.is(run.resume?.([]), providerRun)).toBe(true) + await run.dispose() + const result = await run.result + await run.started + await Promise.resolve() + + expect(reads).toEqual({ + id: 1, + started: 1, + result: 1, + cancel: 1, + sendMessage: 1, + dispose: 1, + resume: 1, + output: 1, + structured: 1, + stopReason: 1, + }) + expect(methodReceivers).toEqual(['cancel', 'sendMessage', 'resume', 'dispose']) + expect(result).toEqual({ + output: [{ type: 'text', text: 'accepted output' }], + structured: { verdict: 'accepted' }, + stopReason: 'completed', + }) + expect(Object.isFrozen(result)).toBe(true) + expect(Object.isFrozen(result.output)).toBe(true) + expect(ended).toHaveBeenCalledWith({ + provider: 'stateful-run', + id: 'accepted-child', + stopReason: 'completed', + lastAssistantMessage: [{ type: 'text', text: 'accepted output' }], + }) + }) + it('waits for provider readiness and observes an early result rejection without reordering lifecycle', async () => { const ctx = new Context() await ctx.plugin(SubagentService) @@ -428,12 +737,13 @@ describe('SubagentService', () => { })) }) - it('observe-only: a subagent/end listener mutating lastAssistantMessage cannot corrupt the caller\'s result', async () => { + it('observe-only: a mutating subagent/end listener cannot corrupt the caller or later listeners', async () => { // The subagent/end emit fires from a detached `.then` registered before // start() returns — i.e. BEFORE the caller's own `await run.result` // continuation. If the event shared the result.output reference, a mutating - // listener would change the SubagentResult the caller consumes. The service - // deep-clones output onto the event, so the listener mutates only its copy. + // listener would change the SubagentResult the caller consumes or the value + // a later observer sees. The service freezes one normalized result and the + // lifecycle payload before dispatching either public surface. const ctx = new Context() await ctx.plugin(SubagentService) ctx.subagents.registerProvider(new StubProvider( @@ -448,12 +758,22 @@ describe('SubagentService', () => { if (blocks?.[0]?.type === 'text') blocks[0].text = 'HIJACKED' blocks?.push({ type: 'text', text: 'injected' }) }) + const later = vi.fn() + ctx.on('subagent/end', later) const run = ctx.subagents.start('clone', baseRequest()) const result = await run.result await Promise.resolve() // let the detached settle hook (and its listener) run - // The caller's result.output is untouched by the listener's mutation. + // The caller and the listener after the mutator both retain the accepted value. expect(result.output).toEqual([{ type: 'text', text: 'original' }]) + expect(Object.isFrozen(result.output)).toBe(true) + expect(later).toHaveBeenCalledWith(expect.objectContaining({ + stopReason: 'completed', + lastAssistantMessage: [{ type: 'text', text: 'original' }], + })) + const laterInfo = later.mock.calls[0]![0] as Record + expect(Object.isFrozen(laterInfo)).toBe(true) + expect(Object.isFrozen(laterInfo.lastAssistantMessage)).toBe(true) }) it('omits lastAssistantMessage on the reject path (no SubagentResult was produced)', async () => { @@ -483,17 +803,14 @@ describe('SubagentService', () => { expect('lastAssistantMessage' in endInfo).toBe(false) // no output exists on reject }) - it('contains a structuredClone failure: emits subagent/end without lastAssistantMessage (no unhandled rejection)', async () => { - // The clone runs inside onFulfilled, OUTSIDE emitLifecycle's per-listener - // containment. An uncloneable output (here a content block carrying a - // function) would otherwise throw and become an unhandled rejection on the - // detached `.then`. The handler must instead log and emit the event WITHOUT - // lastAssistantMessage, still carrying the real stopReason. + it('rejects an invalid provider output and maps the contract fault to error telemetry', async () => { + // A function is outside the lossless JSON vocabulary. The service-owned + // result promise rejects instead of exposing the malformed provider value; + // its already-attached lifecycle observer maps that infrastructure fault to + // error telemetry without producing an unhandled rejection. const ctx = new Context() await ctx.plugin(SubagentService) - const warn = vi.fn(); ctx.logger.warn = warn as never - // An output value structuredClone cannot handle (a function is uncloneable). - const uncloneable = [{ type: 'text', text: 'x', evil: () => 0 }] as unknown as SubagentResult['output'] + const nonJsonOutput = [{ type: 'text', text: 'x', evil: () => 0 }] as unknown as SubagentResult['output'] ctx.subagents.registerProvider({ name: 'unclone', capabilities: NO_CAPS, @@ -501,7 +818,7 @@ describe('SubagentService', () => { start: () => ({ id: AgentId('unclone-child'), started: Promise.resolve(), - result: Promise.resolve({ output: uncloneable, stopReason: 'completed' } as SubagentResult), + result: Promise.resolve({ output: nonJsonOutput, stopReason: 'completed' } as SubagentResult), cancel() {}, dispose: async () => {}, }), @@ -510,13 +827,52 @@ describe('SubagentService', () => { const ended = vi.fn() ctx.on('subagent/end', ended) const run = ctx.subagents.start('unclone', baseRequest()) - await run.result + await expect(run.result).rejects.toThrow('subagent result must be losslessly JSON-serializable') await Promise.resolve() const endInfo = ended.mock.calls[0]![0] as Record - expect(endInfo.stopReason).toBe('completed') // the real outcome is preserved - expect('lastAssistantMessage' in endInfo).toBe(false) // clone failed → omitted, not crashed - expect(warn).toHaveBeenCalledWith(expect.stringContaining('could not clone')) + expect(endInfo.stopReason).toBe('error') + expect('lastAssistantMessage' in endInfo).toBe(false) + }) + + it.each([ + { + label: 'a non-array output', + value: { output: { type: 'text', text: 'not an array' }, stopReason: 'completed' }, + message: 'subagent result output must be an array', + }, + { + label: 'a non-string stopReason', + value: { output: [], stopReason: 42 }, + message: 'subagent result stopReason must be a string', + }, + ])('rejects a provider result with $label', async ({ value, message }) => { + const ctx = new Context() + await ctx.plugin(SubagentService) + ctx.subagents.registerProvider({ + name: 'invalid-shape', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: () => ({ + id: AgentId('invalid-shape-child'), + started: Promise.resolve(), + result: Promise.resolve(value as unknown as SubagentResult), + cancel() {}, + async dispose() {}, + }), + }) + const ended = vi.fn() + ctx.on('subagent/end', ended) + + const run = ctx.subagents.start('invalid-shape', baseRequest()) + await expect(run.result).rejects.toThrow(message) + await Promise.resolve() + + expect(ended).toHaveBeenCalledWith(expect.objectContaining({ + provider: 'invalid-shape', + id: 'invalid-shape-child', + stopReason: 'error', + })) }) it('emits subagent/end with stopReason "error" when the run result promise rejects', async () => { @@ -566,6 +922,60 @@ describe('SubagentService', () => { await expect(run.result).resolves.toMatchObject({ stopReason: 'completed' }) }) + it('contains a listener whose thrown value cannot be stringified', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + ctx.subagents.registerProvider(new StubProvider('hostile-listener')) + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + const hostile = { + [Symbol.toPrimitive]() { throw new Error('render failed') }, + } + const second = vi.fn() + ctx.on('subagent/start', () => { throw hostile }) + ctx.on('subagent/start', second) + + const run = ctx.subagents.start('hostile-listener', baseRequest()) + await run.started + + expect(second).toHaveBeenCalledOnce() + expect(warnings.some(message => message.includes(''))).toBe(true) + await run.result + }) + + it('rejects a throwing provider result accessor and maps it to error telemetry', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + ctx.subagents.registerProvider({ + name: 'hostile-result', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: () => ({ + id: AgentId('hostile-result-child'), + started: Promise.resolve(), + result: Promise.resolve({ + output: [], + get stopReason(): 'completed' { throw new Error('stop reason exploded') }, + }), + cancel() {}, + async dispose() {}, + }), + }) + const ended = vi.fn() + ctx.on('subagent/end', ended) + + const run = ctx.subagents.start('hostile-result', baseRequest()) + await run.started + await expect(run.result).rejects.toThrow('stop reason exploded') + await Promise.resolve() + + expect(ended).toHaveBeenCalledWith(expect.objectContaining({ + provider: 'hostile-result', + id: 'hostile-result-child', + stopReason: 'error', + })) + }) + it('contains a throwing subagent/end listener per-listener: a later listener still observes the settle, no unhandled rejection', async () => { const ctx = new Context() await ctx.plugin(SubagentService) diff --git a/packages/subagent/subagent/tsconfig.json b/packages/subagent/subagent/tsconfig.json index f93f929241..3d3c9be6a9 100644 --- a/packages/subagent/subagent/tsconfig.json +++ b/packages/subagent/subagent/tsconfig.json @@ -17,6 +17,9 @@ { "path": "../../core/agent" }, + { + "path": "../../core/session" + }, { "path": "../../llm/llm" }, diff --git a/packages/support/README.md b/packages/support/README.md index 2a08063bad..c8883a89ff 100644 --- a/packages/support/README.md +++ b/packages/support/README.md @@ -5,7 +5,7 @@ Packages that exist to serve development, testing, and the examples rather than | Package | Role | ctx key | |---|---|---| | `acp-snapshot/` | ACP snapshot suite kit: subprocess scenario harness + golden normalizers + the `defineAcpSnapshotSuite` factory | (library — imported by example `*.snapshot.ts` suites) | -| `invariants/` | Dev-mode event-contract invariants + session-log freeze | (listens on `session/*`, `agent/*`) | +| `invariants/` | Dev-mode event-contract assertions | (listens on `session/*`, `agent/*`) | | `llm-replay/` | Record/replay adapter: short-circuits `llm/stream` from a recorded session JSONL (keyless snapshot tests) | (listens on `llm/stream`) | | `subagent-mock/` | Scripted `SubagentProvider` for deterministic seam/tool tests | (registers on `ctx.subagents`) | diff --git a/packages/support/invariants/README.md b/packages/support/invariants/README.md index 94c2682f9d..4f50ec42f3 100644 --- a/packages/support/invariants/README.md +++ b/packages/support/invariants/README.md @@ -1,9 +1,11 @@ # dsh-invariants -Dev-mode event-contract invariants and session-log freeze. A pure-listener plugin (everything is a plugin) that asserts the harness event contract at runtime and, optionally, freezes logged session-event data so any code that mutates history throws instead of corrupting silently. +Dev-mode event-contract assertions. This pure-listener plugin checks relationships among session events, agent states, scoped dispatches, and model requests at runtime; it does not own or change product behavior. **Off in production.** Enable it in tests and the demos, where a contract violation should fail loudly. It costs nothing when not registered, and doubles as executable documentation of the event taxonomy — the assertions *are* the contract. +Session itself owns immutable log storage in every composition: it takes one lossless JSON snapshot of each accepted event, deep-freezes that record, and exposes the log through immutable array snapshots. The invariants plugin checks the cross-record and cross-seam rules that storage immutability cannot express. + ## Plugin A functional plugin — register the module namespace (this is what loading by name in `cordis.yml` does): @@ -14,17 +16,10 @@ import * as Invariants from '@deepseek-ai/dsh-invariants' declare const ctx: Context -await ctx.plugin(Invariants) // freeze on (default) -await ctx.plugin(Invariants, { freeze: false }) // assert contract, don't freeze +await ctx.plugin(Invariants) ``` -`inject`: `['sessions']` — it reads `ctx.sessions.list()` at apply time to rebuild trace state for sessions that already exist (so a hot reload mid-turn doesn't falsely reject the next event). It listens on `session/created`, `session/event`, and `agent/status`. - -### Config - -| Key | Default | Meaning | -|---|---|---| -| `freeze` | `true` | Deep-freeze each logged event's data so mutating a logged event throws. Set `false` to assert the contract without freezing. | +`inject`: `['sessions']` — it reads `ctx.sessions.list()` at apply time to rebuild trace state for sessions that already exist, so a hot reload mid-turn does not falsely reject the next event. It registers only listeners and has no configuration. ## Invariants asserted @@ -46,10 +41,10 @@ Model requests (on `llm/stream`): On any violation it throws `InvariantError` (`code: 'INVARIANT'`). -## Why runtime, not deep-readonly types +## Why runtime assertions remain useful -A `DeepReadonly` is high type-noise across every log consumer, and a plugin can cast straight through it. A dev-mode freeze plus these assertions catch real corruption at zero production cost and zero type noise. The always-on half of that defense — cloning derived messages so request/adapter mutation can't reach back into the log — lives in `dsh-session`'s `deriveMessages`. This package is the dev-mode tripwire. See [dev-mode invariants](../../../docs/rfc/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md). +Session enforces the per-record storage boundary at runtime, where a cast cannot bypass it. Pervasive `DeepReadonly` types would add noise across consumers without expressing relationships such as turn/step nesting, subject-correct scoped dispatch, or equality between a request and its log reconstruction. This plugin checks those relationships in development while `dsh-session` keeps history immutable in every composition. See [source-owned session immutability and dev-mode invariants](../../../docs/rfc/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.md). ## Seeded sessions -A seeded/forked session arrives with events already in its log (the `Session` constructor copies the seed without emitting `session/event`). On `session/created` the plugin replays the existing log through the checker and freezes those entries, so seeded history is held to the same contract. +A seeded or forked session arrives with events already in its log because construction does not emit `session/event` for each seed record. `Session` validates, snapshots, and freezes every seed record before accepting it; on `session/created`, this plugin replays the accepted log only to rebuild and check its relational trace state. diff --git a/packages/support/invariants/package.json b/packages/support/invariants/package.json index 4ea36f66de..ba95eea315 100644 --- a/packages/support/invariants/package.json +++ b/packages/support/invariants/package.json @@ -1,6 +1,6 @@ { "name": "@deepseek-ai/dsh-invariants", - "description": "Dev-mode event-contract invariants + session-log freeze for the DeepSeek Harness", + "description": "Dev-mode event-contract assertions for the DeepSeek Harness", "version": "0.0.1", "private": true, "type": "module", diff --git a/packages/support/invariants/src/index.ts b/packages/support/invariants/src/index.ts index ee431a7f39..153d97a45c 100644 --- a/packages/support/invariants/src/index.ts +++ b/packages/support/invariants/src/index.ts @@ -1,20 +1,18 @@ /** - * Dev-mode invariants: a pure-listener plugin that asserts the harness event - * contract at runtime, and (optionally) freezes logged session-event data so - * any code that mutates history throws instead of corrupting silently. + * Dev-mode invariants: a pure-listener plugin that asserts relationships in + * the harness event contract at runtime. * * Everything is a plugin — this is just listeners on `session/created`, - * `session/event`, and `agent/status`. It is **off in production**: enable it - * in tests and the demos, where a contract violation should be a loud failure, - * not a subtle one. It doubles as executable documentation of the event - * taxonomy: the assertions below ARE the contract. + * `session/event`, `agent/status`, and the scoped dispatch and request seams. + * It is **off in production**: enable it in tests and demos, where a contract + * violation should be a loud failure rather than a subtle one. It doubles as + * executable documentation of the event taxonomy: the assertions below are + * the contract. * - * Why runtime assertions instead of compile-time deep-readonly types? See - * the dev-invariants RFC. Briefly: a `DeepReadonly` is high type-noise across - * every log consumer and a plugin casts straight through it; a dev-mode freeze - * + assertions catch real corruption at zero production cost and zero type - * noise. The always-on half of that defense (cloning derived messages) lives - * in dsh-session; this package is the dev-mode tripwire. + * Session owns immutable log storage: it snapshots and deep-freezes every + * accepted event at the source. This plugin checks relationships that one + * event's types and immutability cannot express, including turn/step nesting, + * scoped dispatch, status transitions, and request reconstructability. * * @module @deepseek-ai/dsh-invariants */ @@ -44,16 +42,6 @@ export class InvariantError extends HarnessError { } } -/** Plugin config. */ -export interface Config { - /** - * Deep-freeze logged session-event data so mutating a logged event throws. - * Default true — this plugin only runs in dev/test, where freezing is the - * point. Set false to assert the event contract without freezing. - */ - freeze?: boolean -} - /** Per-session bookkeeping for the session-log invariants. */ interface SessionTrace { /** Highest `seq` seen so far (must strictly increase). */ @@ -87,29 +75,6 @@ interface AgentSubject { agent: Agent } -/** - * Deep-freeze a value and everything reachable from it. - * - * Walks every object's own properties even when the object itself is already - * frozen: `Session.append()` accepts event data from arbitrary plugins/tools, - * so a caller can hand us a SHALLOW-frozen object whose descendants are still - * mutable. Skipping an already-frozen node (the obvious idempotence shortcut) - * would leave exactly the kind of mutable history the dev-invariants RFC means to catch. A - * `WeakSet` of visited objects keeps it terminating on cycles and avoids - * re-walking shared subtrees / already-processed seed events. - */ -function deepFreeze(value: unknown, seen: WeakSet = new WeakSet()): void { - if (value === null || typeof value !== 'object') return - if (seen.has(value)) return - seen.add(value) - // Freeze the node (no-op if a caller pre-froze it), then ALWAYS descend — - // a frozen container can still hold mutable children. - Object.freeze(value) - for (const key of Object.keys(value)) { - deepFreeze((value as Record)[key], seen) - } -} - /** Assert that a step-scoped event names the currently open turn and step. */ function requireOpenStep(trace: SessionTrace, kind: string, turn: number, step: number): void { if (trace.openTurn !== turn || trace.openStep !== step) { @@ -311,13 +276,13 @@ function checkTransition(from: AgentStatus | undefined, to: AgentStatus): void { /** * Register the dev-mode invariants. Contributions are effect-scoped, so - * disposing the plugin fiber removes all listeners and stops freezing - * (HMR-safe). On (re-)apply the trace state is rebuilt by replaying each - * existing session's log, so a hot reload mid-turn does not falsely reject the - * next event. + * disposing the plugin fiber removes all listeners (HMR-safe). On (re-)apply + * the trace state is rebuilt by replaying each existing session's log, so a + * hot reload mid-turn does not falsely reject the next event. + * + * @param ctx - Cordis context that receives the invariant listeners. */ -export function apply(ctx: Context, config: Config = {}): void { - const freeze = config.freeze ?? true +export function apply(ctx: Context): void { const traces = new WeakMap() // Agent status has no stored history to replay; the first observation after // (re-)apply seeds the baseline, so a reload never produces a false positive. @@ -334,13 +299,12 @@ export function apply(ctx: Context, config: Config = {}): void { surface: [], }) - /** Build (or rebuild) a session's trace by replaying its whole log; freeze it. */ + /** Build (or rebuild) a session's trace by replaying its whole log. */ const seedSession = (session: Session): SessionTrace => { const trace = freshTrace() traces.set(session, trace) for (const event of session.events) { checkEvent(trace, event) - if (freeze) deepFreeze(event) } return trace } @@ -362,7 +326,6 @@ export function apply(ctx: Context, config: Config = {}): void { ctx.on('session/event', (session, event) => { checkEvent(traceFor(session), event) - if (freeze) deepFreeze(event) }) ctx.on('agent/status', (agent, status) => { diff --git a/packages/support/invariants/tests/invariants.spec.ts b/packages/support/invariants/tests/invariants.spec.ts index ad3792b302..44a87abf8c 100644 --- a/packages/support/invariants/tests/invariants.spec.ts +++ b/packages/support/invariants/tests/invariants.spec.ts @@ -8,10 +8,10 @@ import * as Invariants from '@deepseek-ai/dsh-invariants' import { InvariantError } from '@deepseek-ai/dsh-invariants' /** A Context with the session store and the invariants plugin registered. */ -async function setup(config?: { freeze?: boolean }) { +async function setup() { const ctx = new Context() await ctx.plugin(SessionStore) - const fiber = await ctx.plugin(Invariants, config ?? {}) + const fiber = await ctx.plugin(Invariants) return { ctx, fiber } } @@ -22,7 +22,7 @@ function mockAgent(id: string): Agent { describe('session-log invariants', () => { it('accepts a well-formed turn/step/tool sequence', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() expect(() => { session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) @@ -38,7 +38,7 @@ describe('session-log invariants', () => { }) it('rejects a non-monotonic seq (replay spine)', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() // Session.append enforces seq-contiguity at the source, so drive the // invariants seq check directly via session/event with a regressing seq. @@ -48,7 +48,7 @@ describe('session-log invariants', () => { }) it('rejects a turn/start while another turn is open', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) expect(() => session.append('turn/start', { turn: 2, trigger: { kind: 'message', source: { kind: 'user' } } })) @@ -56,7 +56,7 @@ describe('session-log invariants', () => { }) it('rejects a turn/end that does not match the open turn', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) expect(() => session.append('turn/end', { turn: 2, reason: { kind: 'completed' } })) @@ -64,14 +64,14 @@ describe('session-log invariants', () => { }) it('rejects a step/start outside its declared turn', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) expect(() => session.append('step/start', { turn: 2, step: 1 })).toThrow(/open turn is 1/) }) it('rejects a step/end that does not match the open step', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) session.append('step/start', { turn: 1, step: 1 }) @@ -79,7 +79,7 @@ describe('session-log invariants', () => { }) it('rejects an assistant/chunk outside an open step', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) expect(() => session.append('assistant/chunk', { turn: 1, step: 1, chunk: { type: 'text-delta', index: 0, text: 'x' } })) @@ -87,7 +87,7 @@ describe('session-log invariants', () => { }) it('rejects a message event appended outside any open turn (turn-enclosure)', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() // No turn open: every message-bearing event must be turn-enclosed (the turn-enclosure RFC). expect(() => session.append('user/message', { content: [{ type: 'text', text: 'hi' }], source: { kind: 'user' } }, { surfaceOp: 'append' })) @@ -97,7 +97,7 @@ describe('session-log invariants', () => { }) it('rejects steering and plugin-added events appended outside any open turn', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() // steering/message is turn-scoped: outside a turn it would land past the // commit boundary and be dropped on resume (the turn-enclosure RFC). @@ -113,7 +113,7 @@ describe('session-log invariants', () => { }) it('accepts message events once a turn is open', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) expect(() => session.append('user/message', { content: [{ type: 'text', text: 'hi' }], source: { kind: 'user' } }, { surfaceOp: 'append' })) @@ -121,7 +121,7 @@ describe('session-log invariants', () => { }) it('rejects a tool/result with no prior tool/call', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) session.append('step/start', { turn: 1, step: 1 }) @@ -130,7 +130,7 @@ describe('session-log invariants', () => { }) it('allows a synthetic interrupted tool/result from crash repair without a prior tool/call event', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() expect(() => { session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) @@ -152,7 +152,7 @@ describe('session-log invariants', () => { }) it('allows a tool/call with no matching tool/result (thrown waterfall ends the step)', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() expect(() => { session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) @@ -164,7 +164,7 @@ describe('session-log invariants', () => { }) it('holds seeded sessions to the contract on session/created', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() // A seq-contiguous, serializable seed (so it passes Session's constructor // validation) that nonetheless violates turn nesting — a second turn/start // while the first turn is still open — must be rejected by the invariants @@ -177,7 +177,7 @@ describe('session-log invariants', () => { }) it('tracks turns per session independently', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const a = ctx.sessions.create(SessionId('a')) const b = ctx.sessions.create(SessionId('b')) a.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) @@ -186,7 +186,7 @@ describe('session-log invariants', () => { }) it('accepts multiple steps in a turn and consecutive turns', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() expect(() => { session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) @@ -203,7 +203,7 @@ describe('session-log invariants', () => { }) it('rejects a skipped turn number', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) session.append('turn/end', { turn: 1, reason: { kind: 'completed' } }) @@ -212,7 +212,7 @@ describe('session-log invariants', () => { }) it('rejects a skipped step number within a turn', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) session.append('step/start', { turn: 1, step: 1 }) @@ -222,7 +222,7 @@ describe('session-log invariants', () => { }) it('rejects a turn/end while a step is still open', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) session.append('step/start', { turn: 1, step: 1 }) @@ -231,7 +231,7 @@ describe('session-log invariants', () => { }) it('rejects a step/start while a step is still open', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) session.append('step/start', { turn: 1, step: 1 }) @@ -239,7 +239,7 @@ describe('session-log invariants', () => { }) it('rejects a tool/result satisfying a call from a previous step', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) session.append('step/start', { turn: 1, step: 1 }) @@ -252,7 +252,7 @@ describe('session-log invariants', () => { }) it('rejects an assistant/message naming the wrong step', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) session.append('step/start', { turn: 1, step: 1 }) @@ -266,7 +266,7 @@ describe('HMR state rebuild', () => { const ctx = new Context() await ctx.plugin(SessionStore) // First registration, mid-turn: a turn is open when the plugin reloads. - const first = await ctx.plugin(Invariants, { freeze: false }) + const first = await ctx.plugin(Invariants) const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) session.append('step/start', { turn: 1, step: 1 }) @@ -274,7 +274,7 @@ describe('HMR state rebuild', () => { // Re-apply (HMR): the fresh fiber must replay the existing log so the open // step is known — the next chunk must NOT be a false positive. - await ctx.plugin(Invariants, { freeze: false }) + await ctx.plugin(Invariants) expect(() => session.append('assistant/chunk', { turn: 1, step: 1, chunk: { type: 'text-delta', index: 0, text: 'h' } })) .not.toThrow() // And a genuine violation is still caught after the rebuild. @@ -283,76 +283,49 @@ describe('HMR state rebuild', () => { }) }) -describe('dev-freeze', () => { - it('freezes appended event data so mutating a logged event throws', async () => { - const { ctx } = await setup() // freeze defaults true - const session = ctx.sessions.create() - session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) +describe('session immutability', () => { + it('always freezes appended event data without the invariants plugin', () => { + const session = new Session(SessionId('appended')) const event = session.append('user/message', { content: [{ type: 'text', text: 'hi' }], source: { kind: 'user' } }, { surfaceOp: 'append' }) expect(Object.isFrozen(event)).toBe(true) expect(Object.isFrozen(event.data)).toBe(true) expect(Object.isFrozen(event.data.content)).toBe(true) + expect(Object.isFrozen(event.data.content[0])).toBe(true) + expect(Object.isFrozen(session.events)).toBe(true) expect(() => { (event.data.content[0] as { text: string }).text = 'HACKED' }).toThrow() }) - it('does not freeze when freeze:false', async () => { - const { ctx } = await setup({ freeze: false }) - const session = ctx.sessions.create() - session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) - const event = session.append('user/message', { content: [{ type: 'text', text: 'hi' }], source: { kind: 'user' } }, { surfaceOp: 'append' }) - expect(Object.isFrozen(event)).toBe(false) - }) - - it('freezes seeded events on session/created', async () => { - const { ctx } = await setup() + it('always freezes seeded events without the invariants plugin', () => { const seed = [ { type: 'turn/start' as const, seq: 0, time: 0, data: { turn: 1, trigger: { kind: 'message' as const, source: { kind: 'user' as const } } } }, { type: 'user/message' as const, seq: 1, time: 0, data: { content: [{ type: 'text' as const, text: 'seeded' }], source: { kind: 'user' as const } }, surfaceOp: 'append' as const }, ] - const session = ctx.sessions.create(undefined, { seed }) + const session = new Session(SessionId('seeded'), seed) + expect(Object.isFrozen(seed[0])).toBe(false) + expect(Object.isFrozen(session.events)).toBe(true) expect(Object.isFrozen(session.events[0])).toBe(true) + expect(Object.isFrozen(session.events[0]?.data)).toBe(true) + expect(Object.isFrozen(session.events[1]?.data)).toBe(true) }) - it('freezes mutable descendants of a shallow-frozen event datum', async () => { - const { ctx } = await setup() - const session = ctx.sessions.create() - session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) - // A caller hands in a SHALLOW-frozen block whose nested array is still - // mutable. deepFreeze must descend into the already-frozen object and - // freeze the descendant, not short-circuit on the frozen container — - // otherwise dev-mode misses exactly the history mutation the dev-invariants RFC catches. - // `append` snapshots `data`, so the freeze applies to the LOGGED clone, not - // the caller's input — read the event back and assert on its data. + it('snapshots and freezes descendants of a shallow-frozen caller value', () => { + const session = new Session(SessionId('shallow-frozen')) const innerContent: { type: 'text'; text: string }[] = [{ type: 'text', text: 'inner' }] const block = Object.freeze({ type: 'tool-result' as const, toolCallId: CallId('c1'), content: innerContent, isError: false }) const event = session.append('user/message', { content: [block], source: { kind: 'user' } }, { surfaceOp: 'append' }) const logged = event.data.content[0] as { content: { type: 'text'; text: string }[] } + expect(Object.isFrozen(innerContent)).toBe(false) expect(Object.isFrozen(logged.content)).toBe(true) expect(Object.isFrozen(logged.content[0])).toBe(true) + innerContent[0]!.text = 'caller mutation' + expect(logged.content[0]!.text).toBe('inner') expect(() => { logged.content.push({ type: 'text', text: 'mutation' }) }).toThrow() }) - - it('terminates on a cyclic event datum (WeakSet guard)', async () => { - const { ctx } = await setup() - const session = ctx.sessions.create() - // The deep-freeze WeakSet guard must terminate on a self-referential - // structure rather than recursing forever. Session.append now rejects - // non-serializable (incl. cyclic) data at the source, so drive the freeze - // handler directly via hand-built session/events — exactly the shape the - // invariants listener receives. Open a turn first (seq 0) so the cyclic - // user/message (seq 1) satisfies the turn-enclosure invariant. - ctx.emit(scopeTarget(session, undefined), 'session/event', session, { type: 'turn/start', seq: 0, time: 1, data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } } } as never) - const cyclic: Record = { type: 'text', text: 'x' } - cyclic['self'] = cyclic - const event = { type: 'user/message', seq: 1, time: 1, data: { content: [cyclic], source: { kind: 'user' } } } - expect(() => { ctx.emit(scopeTarget(session, undefined), 'session/event', session, event as never) }).not.toThrow() - expect(Object.isFrozen(cyclic)).toBe(true) - }) }) describe('agent status invariants', () => { it('accepts legal transitions: idle→running→idle and →disposed', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const agent = mockAgent('a1') expect(() => { ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'idle') @@ -363,28 +336,28 @@ describe('agent status invariants', () => { }) it('accepts running→disposed', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const agent = mockAgent('a2') ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'running') expect(() => { ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'disposed') }).not.toThrow() }) it('rejects a no-op transition', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const agent = mockAgent('a3') ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'running') expect(() => { ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'running') }).toThrow(/no-op transition/) }) it('rejects leaving the terminal disposed state', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const agent = mockAgent('a4') ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'disposed') expect(() => { ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'idle') }).toThrow(/left terminal state disposed/) }) it('tracks status per agent independently', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const a = mockAgent('a5') const b = mockAgent('b5') ctx.emit(scopeTarget(a, a), 'agent/status', a, 'running') @@ -401,10 +374,10 @@ describe('HMR safety', () => { await fiber.dispose() - // After disposal: no freezing, no assertions. An event that WOULD have - // violated the open-turn rule now passes silently, and is not frozen. + // After disposal the plugin's assertions are gone, so an event that would + // violate the open-turn rule passes. Session still owns immutability. const event = session.append('turn/start', { turn: 2, trigger: { kind: 'message', source: { kind: 'user' } } }) - expect(Object.isFrozen(event)).toBe(false) + expect(Object.isFrozen(event)).toBe(true) // A no-op status transition no longer throws either. const agent = mockAgent('hmr') ctx.emit(scopeTarget(agent, agent), 'agent/status', agent, 'idle') @@ -419,16 +392,17 @@ describe('HMR safety', () => { expect(err.message).toBe('invariant violated: seq must strictly increase') }) - it('does not leak listeners across dispose (no stale freezing)', async () => { + it('does not leak listeners across dispose', async () => { const { ctx, fiber } = await setup() await fiber.dispose() const spy = vi.fn() ctx.on('session/event', spy) const session = ctx.sessions.create() session.append('user/message', { content: [{ type: 'text', text: 'x' }], source: { kind: 'user' } }, { surfaceOp: 'append' }) - // our own spy fires, proving events still flow — but the plugin's frozen. + // The spy proves events still flow after plugin disposal. Session, not the + // disposed listener, freezes the accepted record. expect(spy).toHaveBeenCalledOnce() - expect(Object.isFrozen(session.events[0])).toBe(false) + expect(Object.isFrozen(session.events[0])).toBe(true) }) }) @@ -640,7 +614,7 @@ describe('surface invariants', () => { }) it('catches an incomplete-provenance replace on the load/seed path', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const badSeed = [ { type: 'turn/start' as const, seq: 0, time: 0, data: { turn: 1, trigger: { kind: 'message' as const, source: { kind: 'user' as const } } } }, { type: 'step/start' as const, seq: 1, time: 0, data: { turn: 1, step: 1 } }, @@ -655,10 +629,10 @@ describe('surface invariants', () => { const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) - // Type system prevents surface metadata on non-surface events; this test - // exercises the runtime guard against casts or persisted-data bypass. - // eslint-disable-next-line @typescript-eslint/no-explicit-any, @typescript-eslint/no-unsafe-call, @typescript-eslint/no-unsafe-return - expect(() => (session.append as any)('turn/end', { turn: 1, reason: { kind: 'completed' } }, { sourceEventSeqs: [0] })) + // Session rejects this at its own acceptance boundary. Emit a hand-built + // record to cover the listener's defensive check for alternate producers. + const event = { type: 'turn/end', seq: 1, time: 1, data: { turn: 1, reason: { kind: 'completed' } }, sourceEventSeqs: [0] } + expect(() => { ctx.emit(scopeTarget(session, undefined), 'session/event', session, event as never) }) .toThrow(/cannot carry sourceEventSeqs/) }) @@ -666,8 +640,8 @@ describe('surface invariants', () => { const { ctx } = await setup() const session = ctx.sessions.create() session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) - // eslint-disable-next-line @typescript-eslint/no-explicit-any, @typescript-eslint/no-unsafe-call, @typescript-eslint/no-unsafe-return - expect(() => (session.append as any)('turn/end', { turn: 1, reason: { kind: 'completed' } }, { surfaceOp: 'append' })) + const event = { type: 'turn/end', seq: 1, time: 1, data: { turn: 1, reason: { kind: 'completed' } }, surfaceOp: 'append' } + expect(() => { ctx.emit(scopeTarget(session, undefined), 'session/event', session, event as never) }) .toThrow(/cannot carry surfaceOp/) }) }) @@ -675,7 +649,7 @@ describe('surface invariants', () => { describe('request-reconstruction cross-check (llm/stream)', () => { /** Session with a boundary: one derivable user message, an open step, and the header event the loop would have logged. */ async function requestSetup() { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create(SessionId('req-check')) session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) session.append('user/message', { content: [{ type: 'text', text: 'hi' }], source: { kind: 'user' } }, { surfaceOp: 'append' }) @@ -737,7 +711,7 @@ describe('request-reconstruction cross-check (llm/stream)', () => { }) it('rejects a loop-built request with no header event or no step/start in its log', async () => { - const { ctx } = await setup({ freeze: false }) + const { ctx } = await setup() const session = ctx.sessions.create(SessionId('req-bare')) session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) const bare = Object.freeze({ model: 'm', messages: Object.freeze([]), sessionId: session.id }) @@ -778,7 +752,7 @@ describe('request cross-check ordering (prepend)', () => { const ctx = new Context() await ctx.plugin(SessionStore) ctx.on('llm/stream', () => (async function* () {})() as never) // short-circuits, no next() - await ctx.plugin(Invariants, { freeze: false }) + await ctx.plugin(Invariants) const session = ctx.sessions.create(SessionId('prepend-check')) session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) diff --git a/packages/support/subagent-mock/tests/subagent-mock.spec.ts b/packages/support/subagent-mock/tests/subagent-mock.spec.ts index ddd725da4b..8a96cc4141 100644 --- a/packages/support/subagent-mock/tests/subagent-mock.spec.ts +++ b/packages/support/subagent-mock/tests/subagent-mock.spec.ts @@ -57,7 +57,8 @@ describe('dsh-subagent-mock', () => { // the structured path is only reachable when the cap is on; with it off and // no schema requested, the result has no structured field. const run = ctx.subagents.start('mock', baseRequest()) - await expect(run.result).resolves.toMatchObject({ structured: undefined }) + const result = await run.result + expect(result).not.toHaveProperty('structured') }) it('honors a configured stop reason', async () => { diff --git a/packages/workflow/workflow-workerthread/README.md b/packages/workflow/workflow-workerthread/README.md index 86d386350a..d7cd9ed64c 100644 --- a/packages/workflow/workflow-workerthread/README.md +++ b/packages/workflow/workflow-workerthread/README.md @@ -35,9 +35,9 @@ Values LEAVING the script (hook options/schemas, the script's return) are materi ## Cancellation, death, disposal -Per-run limits: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` posts the cancel to the worker (its hooks start throwing `CANCELLED`; the script dies at its next await) and cancels every host-side child NOW on **both seam channels** — the shared request signal aborts AND each registered child's explicit `cancel()` is called host-side, because the seam leaves a provider free to honor either channel and a worker wedged in a synchronous spin could not relay its own per-child cancel RPCs (those later land as idempotent no-ops). The grace then arms: a run still unsettled `disposeGraceMs` later force-settles `cancelled` and the worker is **terminated**. A cancellation that lands before the body runs (the ready→go handshake) reports `cancelled` without executing anything; a worker `result` racing an in-flight host cancellation reports `cancelled` too (first-wins settlement — the seam-visible result had not settled when cancellation was requested); post-cancel `phase`/`log` narration is suppressed host-side, while cancelled children still deliver their paired `agent-end`. +Per-run limits: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` posts the cancel to the worker (its hooks start throwing `CANCELLED`; the script dies at its next await) and cancels every host-side child NOW on **both seam channels** — the shared request signal aborts AND each registered child's explicit `cancel()` is called host-side, because the seam leaves a provider free to honor either channel and a worker wedged in a synchronous spin could not relay its own per-child cancel RPCs (those later land as idempotent no-ops). Each provider-owned cancel callback is exception-contained independently, so a broken child cannot prevent peer cancellation or workflow settlement. The grace then arms: a run still unsettled `disposeGraceMs` later force-settles `cancelled` and the worker is **terminated**. A cancellation that lands before the body runs (the ready→go handshake) reports `cancelled` without executing anything; a worker `result` racing an in-flight host cancellation reports `cancelled` too (first-wins settlement — the seam-visible result had not settled when cancellation was requested); post-cancel `phase`/`log` narration is suppressed host-side, while cancelled children still deliver their paired `agent-end`. -A worker that dies unexpectedly (an OOM, a script reaching `process.exit` through the documented vm escape) settles the run `stopReason: 'error'` with the exit diagnostics — or `'cancelled'` when a cancel was in flight — and the host-side child registry is what winds every surviving child down. `dispose()` = cancel + immediate host-driven disposal of every registered child (a wedged worker can relay no dispose RPC, so child teardown overlaps the grace instead of starting after it; the worker's own dispose RPCs join the same per-child disposal) + bounded wait (result, then child-registry quiescence, capped by the grace) + unconditional `worker.terminate()`: the thread never outlives its run. Once a run settles, stray children a script fired without awaiting are cancelled too, and `dispose()` waits for their disposal (bounded by the grace) before returning. `agent-start`/`agent-end` pairing is host-guaranteed the same way: forwarded starts live in a ledger, worker-reported ends pair them on the graceful paths, and the termination paths (grace force-settle, worker death) synthesize the missing ends (outcome `cancelled`) before the run settles — a start still in flight across the force-settle can surface after `workflow/end`, immediately paired the same way. +A worker that dies unexpectedly (an OOM, a script reaching `process.exit` through the documented vm escape) settles the run `stopReason: 'error'` with the exit diagnostics — or `'cancelled'` when a cancel was in flight — and the host-side child registry is what winds every surviving child down. `dispose()` = cancel + immediate host-driven disposal of every registered child (a wedged worker can relay no dispose RPC, so child teardown overlaps the grace instead of starting after it; the worker's own dispose RPCs join the same per-child disposal) + bounded wait (result, then child-registry quiescence, capped by the grace) + unconditional `worker.terminate()`: the thread never outlives its run. Before an ordinary run settlement becomes observable, the host cancels every stray child on both channels too—even a fire-and-forget run still waiting on `started`, for which the worker has no handle yet—and `dispose()` then waits for their disposal (bounded by the grace) before returning. `agent-start`/`agent-end` pairing is host-guaranteed the same way: forwarded starts live in a ledger, worker-reported ends pair them on the graceful paths, and the termination paths (grace force-settle, worker death) synthesize the missing ends (outcome `cancelled`) before the run settles — a start still in flight across the force-settle can surface after `workflow/end`, immediately paired the same way. **Engine-specific limitations**: worker startup is paid per run; on a termination path `agentsStarted` reports the HOST-observed count (accepted `child-start`s — calls still queued worker-side for a concurrency slot are unknowable then); and a returned promise or thenable resolves per JavaScript semantics BEFORE materialization — that is what makes an un-awaited `return agent('x')` work — with the value-boundary guard applying to the resolution. diff --git a/packages/workflow/workflow-workerthread/package.json b/packages/workflow/workflow-workerthread/package.json index f86c74c2f7..ed934cd0cc 100644 --- a/packages/workflow/workflow-workerthread/package.json +++ b/packages/workflow/workflow-workerthread/package.json @@ -30,6 +30,7 @@ "@deepseek-ai/dsh-agent": "^0.0.1", "@deepseek-ai/dsh-brand": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-session": "^0.0.1", "@deepseek-ai/dsh-subagent": "^0.0.1", "@deepseek-ai/dsh-tools": "^0.0.1", "@deepseek-ai/dsh-workflow": "^0.0.1", diff --git a/packages/workflow/workflow-workerthread/src/host.ts b/packages/workflow/workflow-workerthread/src/host.ts index fff9d8496f..b1d92ac1d0 100644 --- a/packages/workflow/workflow-workerthread/src/host.ts +++ b/packages/workflow/workflow-workerthread/src/host.ts @@ -15,10 +15,13 @@ * terminated — the real kill an in-process engine could not perform). * * Children live in a host-side registry (callId → run) as soon as the provider - * accepts them, so cancellation reaches even a pre-publication attempt. The - * host observes `result` immediately but acknowledges the child to the worker - * only after `started` fulfills; readiness failure is a start error and the - * host disposes the attempt because the worker never received a handle. The + * accepts them, so cancellation reaches even a pre-publication attempt. Both + * explicit run cancellation and the shared request signal are driven when the + * workflow is cancelled OR normally settles, so a fire-and-forget child cannot + * survive merely by honoring only one channel. The host observes `result` + * immediately but acknowledges the child to the worker only after `started` + * fulfills; readiness failure is a start error and the host disposes the + * attempt because the worker never received a handle. The * worker drives disposal by RPC on the graceful path, `dispose()` host-drives * every registered child's disposal immediately (a wedged worker can relay no * dispose RPC, and child teardown must overlap the grace, not start after it), @@ -44,6 +47,7 @@ import type { WorkerOptions } from 'node:worker_threads' import type { Context } from 'cordis' import type { Agent } from '@deepseek-ai/dsh-agent' import { assertNever } from '@deepseek-ai/dsh-llm' +import { snapshotJsonValue } from '@deepseek-ai/dsh-session' import type { SubagentRun } from '@deepseek-ai/dsh-subagent' import type { WorkflowAgentEndInfo, WorkflowAgentInfo, WorkflowMeta, WorkflowResult, WorkflowRun, WorkflowRunId } from '@deepseek-ai/dsh-workflow' import { renderThrown } from './realm.ts' @@ -180,11 +184,10 @@ export class WorkerRun implements WorkflowRun { if (this.settled || this.cancelReason !== undefined) return this.cancelReason = reason ?? 'workflow cancelled' this.post(HostToWorkerType.Cancel, { reason: this.cancelReason }) - this.controller.abort(this.cancelReason) // The explicit channel is driven host-side, not left to the worker: a // provider honoring only run.cancel() must not wait on a wedged worker's // ChildCancel relay (those later RPCs land as idempotent no-ops). - for (const run of this.children.values()) run.cancel(this.cancelReason) + this.cancelChildren(this.cancelReason) this.graceTimer = setTimeout(() => { // The worker may no longer speak (it is about to be terminated): pair // every stranded start before the run settles, so ends precede @@ -274,7 +277,10 @@ export class WorkerRun implements WorkflowRun { this.onChildStart(message.callId, message.request) break case WorkerToHostType.ChildCancel: - this.children.get(message.callId)?.cancel(message.reason) + { + const run = this.children.get(message.callId) + if (run !== undefined) this.cancelChild(run, message.reason) + } break case WorkerToHostType.ChildDispose: this.onChildDispose(message.callId) @@ -322,11 +328,19 @@ export class WorkerRun implements WorkflowRun { const forwardResult = run.result.then<() => void, () => void>( (result) => { try { - const snapshot: ChildResult = structuredClone({ - output: result.output, - ...result.structured !== undefined ? { structured: result.structured } : {}, - stopReason: result.stopReason, + // Capture every provider-owned field once, then materialize the + // worker-bound value in one lossless traversal. A stateful accessor + // cannot validate one result and send another, and an exotic value is + // rejected before any prototype-erasing clone. + const output = result.output + const structured = result.structured + const stopReason = result.stopReason + const snapshot = snapshotJsonValue({ + output, + ...structured !== undefined ? { structured } : {}, + stopReason, }) + if (snapshot === undefined) throw new TypeError('child result is not losslessly JSON-serializable') return () => { this.post(HostToWorkerType.ChildSettled, { callId, result: snapshot }) } } catch (error: unknown) { const rendered = `workflow child result could not cross the worker boundary: ${renderThrown(error)}` @@ -416,18 +430,34 @@ export class WorkerRun implements WorkflowRun { /** Abort + dispose every registered child (worker death / final teardown); disposal is contained, not awaited. */ private reapChildren(reason: string): void { - this.controller.abort(this.cancelReason ?? reason) + const cancellation = this.cancelReason ?? reason + this.cancelChildren(cancellation) for (const [callId, run] of [...this.children]) { - run.cancel(this.cancelReason ?? reason) void this.disposeChild(callId, run) } } + /** Drive both cancellation channels for every child already accepted by the host. */ + private cancelChildren(reason: string): void { + this.controller.abort(reason) + for (const run of this.children.values()) this.cancelChild(run, reason) + } + + /** Contain one provider-owned cancel callback so every peer still receives cancellation. */ + private cancelChild(run: SubagentRun, reason?: string): void { + try { + run.cancel(reason) + } catch (error: unknown) { + this.ctx.logger.warn(`workflow-workerthread: child cancel failed: ${renderThrown(error)}`) + } + } + private onResult(result: WorkflowResult): void { - // The worker's settle-reap already child-cancel()s every stray; this - // abort fires the seam signal too, for providers that only honor the - // request signal (both channels, on every path). - if (this.cancelReason === undefined) this.controller.abort('workflow settled') + // The worker cancels handles it already received, but a fire-and-forget + // child may still be waiting on readiness and therefore have no worker + // handle. Drive BOTH provider-permitted channels from the host before the + // workflow becomes externally settled. + if (this.cancelReason === undefined) this.cancelChildren('workflow settled') if (this.cancelReason !== undefined && result.stopReason !== 'cancelled') { // The script settled while our cancel was crossing the thread boundary // — the seam-visible result had NOT settled when cancellation was diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index 23d4de0f07..46a42e4036 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -366,15 +366,68 @@ describe('dsh-workflow-workerthread', () => { expect((result.value as { message: string }).message).toContain('backend exploded') }) - it('maps an uncloneable ready-child result to fatal AGENT_RESULT instead of wedging the bridge', async () => { + it('maps a non-JSON ready-child result to fatal AGENT_RESULT instead of wedging the bridge', async () => { const { ctx, parent } = await setup({ - reply: () => ({ output: [], structured: () => { /* deliberately not cloneable */ }, stopReason: 'completed' }), + reply: () => ({ output: [], structured: () => { /* deliberately outside lossless JSON */ }, stopReason: 'completed' }), }) const result = await run(ctx, parent, scripted(` try { await agent('p'); return 'unreachable' } catch (e) { return { code: e.code, message: e.message } } `)) expect(result.value).toMatchObject({ code: 'AGENT_RESULT' }) - expect((result.value as { message: string }).message).toContain('could not cross the worker boundary') + expect((result.value as { message: string }).message).toContain('subagent result must be losslessly JSON-serializable') + }) + + it('contains a non-JSON result even if the injected subagent service violates its normalization contract', async () => { + // SubagentService normally rejects this before the workflow sees it. Stub + // the injected seam itself so the host's defensive worker-boundary guard + // remains independently covered rather than becoming dead, untested code. + const { ctx, parent } = await setup() + const invalid = { + output: [], + structured: () => { /* deliberately outside lossless JSON */ }, + stopReason: 'completed', + } as unknown as SubagentResult + const start = vi.spyOn(ctx.subagents, 'start').mockReturnValue({ + id: AgentId('raw-invalid-child'), + started: Promise.resolve(), + result: Promise.resolve(invalid), + cancel: () => { /* already settled */ }, + dispose: () => Promise.resolve(), + }) + + const result = await run(ctx, parent, scripted(` + try { await agent('p'); return 'unreachable' } catch (e) { return { code: e.code, message: e.message } } + `)) + + expect(start).toHaveBeenCalledOnce() + expect(result.value).toMatchObject({ code: 'AGENT_RESULT' }) + expect((result.value as { message: string }).message) + .toContain('workflow child result could not cross the worker boundary') + }) + + it('reads each resolved child-result field once before crossing the worker boundary', async () => { + let structuredReads = 0 + class DriftedStructured { readonly value = 'drifted' } + const { ctx, parent } = await setup({ + reply: () => ({ + output: [], + get structured() { + structuredReads += 1 + return structuredReads === 1 ? { value: 'accepted' } : new DriftedStructured() + }, + stopReason: 'completed', + }), + }) + + const result = await run(ctx, parent, scripted(` + const found = await agent('p', { + schema: { type: 'object', properties: { value: { type: 'string' } }, required: ['value'] } + }) + return found.value + `)) + + expect(result.value).toBe('accepted') + expect(structuredReads).toBe(1) }) it('a child whose dispose() throws synchronously cannot wedge the script (the host acks anyway)', async () => { @@ -703,6 +756,81 @@ describe('dsh-workflow-workerthread', () => { await handle.dispose() }) + it('the settle-reap explicitly cancels a readiness-pending stray before workflow/end', async () => { + const { ctx, parent, provider } = await setup({ manual: true, deferStart: true }) + const childLifecycle: string[] = [] + let cancellationAtWorkflowEnd: string | undefined + ctx.on('workflow/agent-start', () => { childLifecycle.push('start') }) + ctx.on('workflow/agent-end', () => { childLifecycle.push('end') }) + ctx.on('workflow/end', () => { + cancellationAtWorkflowEnd = provider.runs[0]?.cancelled + }) + const handle = ctx.workflows.start({ + ...scripted(` + agent('readiness-pending stray') + return 'done' + `), + parent, + }) + + const result = await handle.result + + expect(result.stopReason).toBe('completed') + expect(provider.runs).toHaveLength(1) + expect(provider.runs[0]!.request.signal?.aborted).toBe(true) + expect(provider.runs[0]!.request.signal?.reason).toBe('workflow settled') + expect(provider.runs[0]!.cancelled).toBe('workflow settled') + expect(cancellationAtWorkflowEnd).toBe('workflow settled') + expect(childLifecycle).toEqual([]) + await handle.dispose() + expect(provider.runs[0]!.disposeCalls).toBe(1) + }) + + it('contains a throwing child cancel and still settles after cancelling peer strays', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + let starts = 0 + const cancelled: string[] = [] + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + const provider: SubagentProvider = { + name: 'throwing-cancel', + capabilities: { outputSchema: true, depthLimit: true, toolFilter: true, persona: false }, + inheritsParentContext: false, + start: () => { + const index = starts++ + return { + id: AgentId(`throwing-cancel-${index}`), + started: new Promise(() => { /* readiness stays pending */ }), + result: new Promise(() => { /* cancellation callback owns settlement */ }), + cancel: (reason?: string) => { + if (index === 0) throw new Error('cancel callback broke') + cancelled.push(`${index}:${reason ?? 'cancelled'}`) + }, + dispose: () => Promise.resolve(), + } + }, + } + ctx.subagents.registerProvider(provider) + await ctx.plugin(WorkerWorkflowEngine, { provider: 'throwing-cancel', maxConcurrentAgents: 2 }) + const handle = ctx.workflows.start({ + ...scripted(` + agent('first stray') + agent('second stray') + return 'done' + `), + parent: fakeParent(), + }) + + const result = await handle.result + + expect(result.stopReason).toBe('completed') + expect(starts).toBe(2) + expect(cancelled).toContain('1:workflow settled') + expect(warnings.some(message => message.includes('cancel callback broke'))).toBe(true) + await handle.dispose() + }) + it("cancel() drives each child's explicit cancel() host-side: a wedged worker cannot delay it", async () => { const ctx = new Context() await ctx.plugin(SubagentService) diff --git a/packages/workflow/workflow-workerthread/tsconfig.json b/packages/workflow/workflow-workerthread/tsconfig.json index 385651c192..730a3e61d9 100644 --- a/packages/workflow/workflow-workerthread/tsconfig.json +++ b/packages/workflow/workflow-workerthread/tsconfig.json @@ -26,6 +26,9 @@ { "path": "../../llm/llm" }, + { + "path": "../../core/session" + }, { "path": "../../subagent/subagent" }, diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 68ec4e3183..575f2bbf9f 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -75,34 +75,6 @@ importers: specifier: ^4.1.8 version: 4.1.8(@types/node@22.20.0)(@vitest/coverage-v8@4.1.8)(jsdom@29.1.1)(vite@8.0.16(@types/node@22.20.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0)) - packages/ui/user-approval: - dependencies: - schemastery: - specifier: ^3.18.0 - version: 3.18.0 - devDependencies: - '@deepseek-ai/dsh-agent': - specifier: workspace:^ - version: link:../../core/agent - '@deepseek-ai/dsh-brand': - specifier: workspace:^ - version: link:../../util/brand - '@deepseek-ai/dsh-llm': - specifier: workspace:^ - version: link:../../llm/llm - '@deepseek-ai/dsh-scope': - specifier: workspace:^ - version: link:../../core/scope - '@deepseek-ai/dsh-session': - specifier: workspace:^ - version: link:../../core/session - '@deepseek-ai/dsh-system-prompt': - specifier: workspace:^ - version: link:../../core/system-prompt - cordis: - specifier: ^4.0.0-rc.6 - version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) - packages/bash/bash: devDependencies: '@deepseek-ai/dsh-brand': @@ -167,9 +139,6 @@ importers: '@deepseek-ai/dsh-agent-loop': specifier: workspace:^ version: link:../../core/agent-loop - '@deepseek-ai/dsh-user-approval': - specifier: workspace:^ - version: link:../../ui/user-approval '@deepseek-ai/dsh-bash': specifier: workspace:^ version: link:../bash @@ -197,6 +166,9 @@ importers: '@deepseek-ai/dsh-tools': specifier: workspace:^ version: link:../../core/tools + '@deepseek-ai/dsh-user-approval': + specifier: workspace:^ + version: link:../../ui/user-approval cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -436,6 +408,9 @@ importers: '@deepseek-ai/dsh-scope': specifier: workspace:^ version: link:../scope + '@deepseek-ai/dsh-session': + specifier: workspace:^ + version: link:../session cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -449,9 +424,6 @@ importers: '@deepseek-ai/dsh-agent': specifier: workspace:^ version: link:../agent - '@deepseek-ai/dsh-user-approval': - specifier: workspace:^ - version: link:../../ui/user-approval '@deepseek-ai/dsh-code-runtime': specifier: workspace:^ version: link:../../code-runtime/code-runtime @@ -467,6 +439,9 @@ importers: '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../system-prompt + '@deepseek-ai/dsh-user-approval': + specifier: workspace:^ + version: link:../../ui/user-approval cordis: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) @@ -849,6 +824,9 @@ importers: '@deepseek-ai/dsh-scope': specifier: workspace:^ version: link:../../core/scope + '@deepseek-ai/dsh-session': + specifier: workspace:^ + version: link:../../core/session '@deepseek-ai/dsh-tools': specifier: workspace:^ version: link:../../core/tools @@ -1177,9 +1155,6 @@ importers: '@deepseek-ai/dsh-agent-loop': specifier: workspace:^ version: link:../../core/agent-loop - '@deepseek-ai/dsh-user-approval': - specifier: workspace:^ - version: link:../user-approval '@deepseek-ai/dsh-bash': specifier: workspace:^ version: link:../../bash/bash @@ -1228,6 +1203,9 @@ importers: '@deepseek-ai/dsh-tools': specifier: workspace:^ version: link:../../core/tools + '@deepseek-ai/dsh-user-approval': + specifier: workspace:^ + version: link:../user-approval '@deepseek-ai/dsh-user-interaction': specifier: workspace:^ version: link:../user-interaction @@ -1355,6 +1333,34 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/ui/user-approval: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../../core/agent + '@deepseek-ai/dsh-brand': + specifier: workspace:^ + version: link:../../util/brand + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + '@deepseek-ai/dsh-scope': + specifier: workspace:^ + version: link:../../core/scope + '@deepseek-ai/dsh-session': + specifier: workspace:^ + version: link:../../core/session + '@deepseek-ai/dsh-system-prompt': + specifier: workspace:^ + version: link:../../core/system-prompt + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/ui/user-interaction: devDependencies: '@deepseek-ai/dsh-agent': From a9cb70d89685a6e5fa6dc0fb093ec2ae7987747b Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 05:13:17 +0800 Subject: [PATCH 204/232] fix(scope): harden final ownership boundaries --- docs/config-catalog.md | 6 +- docs/cordis-catalog/events.md | 46 ++- docs/cordis-catalog/services.md | 16 +- docs/core-data-structures/core.md | 2 + docs/core-data-structures/scope.md | 31 ++ docs/core-data-structures/system-prompt.md | 37 +++ docs/event-producer-consumer.md | 33 +- ...-18-agent-lifecycle-and-ownership-seams.md | 4 +- .../2026-07-08-agent-scope-contexts.md | 123 ++++--- .../cordis/tool-cordis/src/api-catalog.ts | 20 +- packages/core/agent-loop/README.md | 4 +- packages/core/agent-loop/src/agent.ts | 84 +++-- packages/core/agent-loop/src/index.ts | 117 ++++--- packages/core/agent-loop/tests/agent.spec.ts | 51 ++- .../agent-loop/tests/scope-lifecycle.spec.ts | 56 ++++ packages/core/agent/README.md | 6 +- packages/core/agent/src/dispatch.ts | 33 +- packages/core/agent/src/index.ts | 153 ++++++++- packages/core/agent/src/types.ts | 5 +- packages/core/agent/tests/agent.spec.ts | 171 +++++++++- packages/core/scope/README.md | 2 +- packages/core/scope/src/index.ts | 156 +++++++-- packages/core/scope/tests/scope.spec.ts | 161 ++++++++- packages/core/session/README.md | 15 +- packages/core/session/src/index.ts | 246 ++++++++++++-- packages/core/session/tests/scoped.spec.ts | 17 + packages/core/session/tests/session.spec.ts | 183 +++++++++- packages/core/system-prompt/README.md | 8 +- packages/core/system-prompt/src/index.ts | 143 ++++++-- .../system-prompt/tests/system-prompt.spec.ts | 130 ++++++++ packages/core/tools/README.md | 4 +- packages/core/tools/src/index.ts | 33 +- packages/core/tools/tests/tools.spec.ts | 91 ++++- .../subagent/subagent-inprocess/README.md | 4 +- .../subagent/subagent-inprocess/src/index.ts | 57 ++-- .../tests/subagent-inprocess.spec.ts | 32 ++ packages/subagent/subagent-spawn/README.md | 2 +- .../tests/subagent-spawn.spec.ts | 31 +- packages/subagent/subagent/README.md | 8 +- packages/subagent/subagent/src/index.ts | 313 +++++++++++++----- .../subagent/subagent/tests/service.spec.ts | 306 ++++++++++++++++- packages/support/invariants/src/index.ts | 1 + packages/ui/acp/src/index.ts | 2 +- packages/ui/acp/tests/dispose.spec.ts | 8 +- packages/ui/user-approval/README.md | 4 +- packages/ui/user-approval/src/index.ts | 158 ++++++--- .../ui/user-approval/tests/approval.spec.ts | 161 +++++++++ .../workflow/workflow-workerthread/README.md | 2 +- .../workflow-workerthread/src/host.ts | 27 +- .../tests/workflow-workerthread.spec.ts | 35 ++ scripts/gen-doc-graphs.ts | 7 + scripts/type-equiv.manifest.json | 8 + 52 files changed, 2839 insertions(+), 514 deletions(-) create mode 100644 docs/core-data-structures/scope.md create mode 100644 docs/core-data-structures/system-prompt.md diff --git a/docs/config-catalog.md b/docs/config-catalog.md index d7b7be2d88..0a1c0289ae 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -144,7 +144,7 @@ export interface Config { Depends on: [`AgentId`](../packages/core/agent/src/index.ts) · [`AgentOptions`](../packages/core/agent/src/index.ts) · [`SessionId`](../packages/core/session/src/index.ts) -Source: [`packages/core/agent-loop/src/index.ts:37`](../packages/core/agent-loop/src/index.ts) +Source: [`packages/core/agent-loop/src/index.ts:44`](../packages/core/agent-loop/src/index.ts) ## `@deepseek-ai/dsh-bash-local` @@ -790,7 +790,7 @@ export interface Config { } ``` -Source: [`packages/core/system-prompt/src/index.ts:265`](../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:315`](../packages/core/system-prompt/src/index.ts) ## `@deepseek-ai/dsh-tool-cordis` @@ -1001,7 +1001,7 @@ export interface Config { export type ApprovalPolicy = 'ask' | 'never' ``` -Source: [`packages/ui/user-approval/src/index.ts:268`](../packages/ui/user-approval/src/index.ts) +Source: [`packages/ui/user-approval/src/index.ts:281`](../packages/ui/user-approval/src/index.ts) ## `@deepseek-ai/dsh-web` diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index f5a0533842..cc450a782e 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -15,7 +15,7 @@ Dispatch modes: **emit** (fire-and-forget), **waterfall** (each listener gets `n ### `agent/created` — emit -An agent's fully composed scoped world was published in the AgentRegistry. Its session is already live in the session store, but concrete factories may keep driving verbs locked until the subsequent `agent/session-start` boundary; that event is the first supported place to inject or queue work during startup. +An agent's fully composed scoped world was published in the AgentRegistry. Its session is already live in the session store, but concrete factories may keep driving verbs locked until the subsequent `agent/session-start` boundary; that event is the first supported place to inject or queue work during startup. A synchronous listener throw vetoes publication and rollback emits the matching disposal edges; returned-promise rejection is observed and logged but cannot retroactively veto this synchronous boundary. ```ts cordis-catalog 'agent/created'(this: Scoped, agent: Agent): void @@ -23,7 +23,7 @@ An agent's fully composed scoped world was published in the AgentRegistry. Its s Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:300`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:303`](../../packages/core/agent/src/types.ts) ### `agent/disposed` — emit @@ -35,7 +35,7 @@ An agent was removed from the registry after its driver and any in-flight turn r Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:314`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:317`](../../packages/core/agent/src/types.ts) ### `agent/error` — emit @@ -47,7 +47,7 @@ A step or turn errored. The loop reports a failure here (plus the logger) even w Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:587`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:590`](../../packages/core/agent/src/types.ts) ### `agent/pre-step` — serial @@ -61,7 +61,7 @@ Serial (awaited in registration order), not a waterfall: a listener mutates the Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:419`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:422`](../../packages/core/agent/src/types.ts) ### `agent/prompt-submit` — waterfall @@ -73,7 +73,7 @@ Waterfall: decide what happens to ONE drained queued message before it becomes a Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:437`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:440`](../../packages/core/agent/src/types.ts) ### `agent/queued` — emit @@ -85,7 +85,7 @@ A message entered the agent's inbox (queued or steering). `source` is the resolv Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:342`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:345`](../../packages/core/agent/src/types.ts) ### `agent/request` — waterfall @@ -97,7 +97,7 @@ Waterfall: shape the step's call configuration — model switching, sampling ove Types: [Agent](../core-data-structures/core.md) · [LlmCallConfig](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:466`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:469`](../../packages/core/agent/src/types.ts) ### `agent/session-prefix` — waterfall @@ -113,7 +113,7 @@ The seed is a frozen empty list; a contributing listener returns a NEW array — Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:518`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:521`](../../packages/core/agent/src/types.ts) ### `agent/session-start` — emit @@ -125,7 +125,7 @@ The agent's session lifecycle began, fired once before its first turn. `source` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:362`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:365`](../../packages/core/agent/src/types.ts) ### `agent/status` — emit @@ -137,7 +137,7 @@ Agent status changed (`idle` ⇄ `running`, or → `disposed`). Drive lifecycle Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:328`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:331`](../../packages/core/agent/src/types.ts) ### `agent/step-result` — waterfall @@ -149,7 +149,7 @@ Waterfall: post-process the assembled assistant Message before tool dispatch (va Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:533`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:536`](../../packages/core/agent/src/types.ts) ### `agent/turn-continuation` — waterfall @@ -161,7 +161,7 @@ Waterfall: override the turn-continuation decision via a typed ContinuationDecis Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:551`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:554`](../../packages/core/agent/src/types.ts) ### `agent/turn-stop` — serial @@ -173,7 +173,7 @@ Serial terminal-stop checkpoint after the ordinary `agent/turn-continuation` wat Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:570`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:573`](../../packages/core/agent/src/types.ts) ## `approval/*` @@ -245,13 +245,23 @@ Source: [`packages/llm/llm/src/index.ts:39`](../../packages/llm/llm/src/index.ts ### `session/created` — emit -A session was created in the store. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the session's owner scope, captured when the session was ENTERED (an agent's session is entered through `agent.ctx`, so its events dispatch in that agent's scope; a bare `sessions.create()` from a plain plugin dispatches subject-less). A listener registered through `agent.ctx` hears only that agent's sessions; a plain plugin listener hears every session. +A session was created in the store. A synchronous listener throw vetoes publication and rollback emits the matching `session/disposed` edge; returned-promise rejection is observed and logged but cannot retroactively veto this synchronous boundary. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the session's owner scope, captured when the session was ENTERED (an agent's session is entered through `agent.ctx`, so its events dispatch in that agent's scope; a bare `sessions.create()` from a plain plugin dispatches subject-less). A listener registered through `agent.ctx` hears only that agent's sessions; a plain plugin listener hears every session. ```ts cordis-catalog 'session/created'(this: Scoped, session: Session): void ``` -Source: [`packages/core/session/src/index.ts:47`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:50`](../../packages/core/session/src/index.ts) + +### `session/disposed` — emit + +A previously announced session left the store. Emitted exactly once on normal detach or publication rollback, and never for a prepared/entered session whose `session/created` announcement did not begin. Listener failures (including returned-promise rejections) are logged and contained per listener so teardown always reaches quiescence. Scope-filtered dispatch uses the same owner carrier captured at entry; agent-scoped listeners hear only their own session's teardown. + +```ts cordis-catalog +'session/disposed'(this: Scoped, session: Session): void +``` + +Source: [`packages/core/session/src/index.ts:62`](../../packages/core/session/src/index.ts) ### `session/event` — emit @@ -263,7 +273,7 @@ An event was appended to a session log (sync, fire-and-forget). This is the per- Types: [SessionEvent](../core-data-structures/core.md) -Source: [`packages/core/session/src/index.ts:61`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:76`](../../packages/core/session/src/index.ts) ### `session/flush` — parallel @@ -273,7 +283,7 @@ Awaited durability checkpoint. The agent loop awaits `ctx.sessions.flush(session 'session/flush'(this: Scoped, session: Session): Promise | void ``` -Source: [`packages/core/session/src/index.ts:79`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:94`](../../packages/core/session/src/index.ts) ## `skill/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 903c368b7c..b7caa6f842 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -21,18 +21,19 @@ async createAgent(options: CreateAgentOptions): Promise async resume(options: ResumeAgentOptions): Promise ``` -Source: [`packages/core/agent-loop/src/index.ts:71`](../../packages/core/agent-loop/src/index.ts) +Source: [`packages/core/agent-loop/src/index.ts:78`](../../packages/core/agent-loop/src/index.ts) ## `ctx.agents` — `AgentRegistry` Agent registry (`ctx.agents`): tracks live agents so UI, hook, and orchestrator plugins can find them without depending on the concrete loop package. Agent *creation* is provided by whichever plugin implements the AgentFactory (`@deepseek-ai/dsh-agent-loop`), registered via setFactory. ```ts cordis-catalog +reserve(id: AgentId): AgentRegistrationReservation setFactory(factory: AgentFactory): () => Promise | void async create(options: CreateAgentOptions): Promise async resume(options: ResumeAgentOptions): Promise register(agent: Agent): () => Promise | void -enter(agent: Agent): () => void +enter(agent: Agent, reservation?: AgentRegistrationReservation): () => void announce(agent: Agent): void get(id: AgentId): Agent | undefined list(): Agent[] @@ -40,7 +41,7 @@ list(): Agent[] Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/index.ts:174`](../../packages/core/agent/src/index.ts) +Source: [`packages/core/agent/src/index.ts:202`](../../packages/core/agent/src/index.ts) ## `ctx.approval` — `ApprovalService` @@ -54,7 +55,7 @@ async request(req: ApprovalRequest): Promise Types: [ApprovalOutcome](../core-data-structures/approval.md) · [ApprovalRequest](../core-data-structures/approval.md) -Source: [`packages/ui/user-approval/src/index.ts:292`](../../packages/ui/user-approval/src/index.ts) +Source: [`packages/ui/user-approval/src/index.ts:305`](../../packages/ui/user-approval/src/index.ts) ## `ctx.bash` — `BashExecutor` (abstract seam) @@ -210,9 +211,10 @@ In-memory session store (`ctx.sessions`). Persistence is intentionally not implemented here — persistence plugins subscribe to `session/event` and flush on `session/flush` / dispose. ```ts cordis-catalog +reserve(id: SessionId): SessionRegistrationReservation create(id?: SessionId, options?: CreateSessionOptions): Session prepare(id?: SessionId, options?: CreateSessionOptions): Session -enter(session: Session): () => void +enter(session: Session, reservation?: SessionRegistrationReservation): () => void announce(session: Session): void async flush(session: Session): Promise get(id: SessionId): Session | undefined @@ -220,7 +222,7 @@ list(): Session[] fork(source: SessionForkSource, boundary?: number, childSessionId?: SessionId): Session ``` -Source: [`packages/core/session/src/index.ts:608`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:663`](../../packages/core/session/src/index.ts) ## `ctx.skills` — `SkillService` @@ -260,7 +262,7 @@ protect(protection: PromptProtection): () => Promise | void async assemble(context: AssembleContext = {}): Promise ``` -Source: [`packages/core/system-prompt/src/index.ts:380`](../../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:430`](../../packages/core/system-prompt/src/index.ts) ## `ctx.tools` — `ToolRegistry` diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index b601c2ae29..76ec27e744 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -16,8 +16,10 @@ Everything else is documented on a **sub-page**, not here. The rule that draws t | Sub-page | Owns | |---|---| | [llm-streaming.md](llm-streaming.md) | the `StreamChunk` wire protocol + adapter contract, `BlockAssembler`, the `LlmAdapter` seam | +| [scope.md](scope.md) | scoped registration identity, dispatch carriers, and the owned `Scope` context | | [session.md](session.md) | the full `SessionEventMap` variant catalog, `TurnTrigger`/`TurnEndReason`, `deriveMessages()`, the turn-enclosure invariant | | [persistence.md](persistence.md) | the durability seam: `SessionPersistence`, JSONL + SQLite backends, `session/flush`, crash recovery, `SessionHeader` | +| [system-prompt.md](system-prompt.md) | per-assembly context, tool-provider results, and canonical contribution protection | | [tools.md](tools.md) | `ToolDefinition` full fields, the schema DSL, `ToolExecution`/`ToolResult`, tool-presentation UI types, and the guarded execution pipeline | | [user-interaction.md](user-interaction.md) | the UI-backed human question/answer seam: `AskUserQuestionRequest`, answer/options vocabulary, provider API, error taxonomy | | [approval.md](approval.md) | the one-shot user-approval seam: `ApprovalRequest`, `ApprovalOutcome`, per-session policy, audit and answerer contracts | diff --git a/docs/core-data-structures/scope.md b/docs/core-data-structures/scope.md new file mode 100644 index 0000000000..d2a2fc47d4 --- /dev/null +++ b/docs/core-data-structures/scope.md @@ -0,0 +1,31 @@ +# Scoped Registration + +The [scope package](../../packages/core/scope) supplies the identity and carrier vocabulary that makes one registration context mean both per-agent visibility and shared lifetime ownership. It is a library primitive rather than a Cordis service; the [agent-scope RFC](../rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md) owns the design rationale, while the package [README](../../packages/core/scope/README.md) owns the callable API and filtering semantics. + +Source: [`packages/core/scope/src/index.ts`](../../packages/core/scope/src/index.ts). + +## Identity and dispatch carrier + +`ScopeKey` is an opaque object identity. The shipped loop uses the live `Agent` object as its own key, but the primitive never inspects the object. + +```ts type-equiv +type ScopeKey = object +``` + +`Scoped` is the compile-time brand on the proxy returned by `scopeTarget(base, key)`. Scope-filtered event declarations require this carrier as their `this` type, preventing an ordinary subject object from type-checking as the dispatch carrier. + +```ts type-equiv +type Scoped = T & { readonly [ScopedBrand]: 'dsh.scope.carrier' } +``` + +## Owned registration context + +`Scope` pairs the tagged registration context with two teardown surfaces. `rawDispose` preserves the exact Cordis disposer identity needed by an ordered composite effect; `dispose()` is the public shared quiescence boundary for direct and racing callers. + +```ts type-equiv +interface Scope { + ctx: Context + rawDispose: () => Promise | void + dispose(): Promise +} +``` diff --git a/docs/core-data-structures/system-prompt.md b/docs/core-data-structures/system-prompt.md new file mode 100644 index 0000000000..0406ddb1a3 --- /dev/null +++ b/docs/core-data-structures/system-prompt.md @@ -0,0 +1,37 @@ +# System Prompt Assembly + +The [system-prompt package](../../packages/core/system-prompt) owns the data exchanged between prompt contributors and one assembly call. The package [README](../../packages/core/system-prompt/README.md) documents registration, ordering, scoping, and rendering behavior; this page pins the literal cross-package shapes that plugins implement or pass. + +Source: [`packages/core/system-prompt/src/index.ts`](../../packages/core/system-prompt/src/index.ts). + +## Assembly context + +`AssembleContext` identifies the scope layer one assembly resolves. It is merge-extensible: `dsh-agent` adds the optional live `agent` field, and `assembleContextFor(agent)` sets that field and `scope` together. + +```ts type-equiv +interface AssembleContext { + scope?: ScopeKey +} +``` + +## Tool-provider result + +`ToolProviderResult.schemas` is the model-visible set for the current assembly. `knownNames` is the provider's pre-restriction name universe used to distinguish a configured-name typo from a known tool that is deliberately hidden in this scope. + +```ts type-equiv +interface ToolProviderResult { + schemas: ToolSchema[] + knownNames?: readonly string[] +} +``` + +## Canonical contribution protection + +`PromptProtection` names section and tool contributions whose canonical registry output remains authoritative after the assembly waterfall. Either field may be omitted, but a registration with no names is rejected. + +```ts type-equiv +interface PromptProtection { + sections?: readonly string[] + tools?: readonly string[] +} +``` diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 5a0c547e70..7b26f43b12 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -7,27 +7,28 @@ This matrix shows which packages dispatch each harness-owned event and which pac | Event | Mode | Declared in | Dispatchers | Listeners | | --- | --- | --- | --- | --- | -| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:300`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:314`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:587`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:419`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic), [`user-approval`](../packages/ui/user-approval) | -| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:437`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | -| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:342`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:466`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:518`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`tool-skill`](../packages/skill/tool-skill) | -| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:362`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`invariants`](../packages/support/invariants) | -| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:328`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:533`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:551`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `agent/turn-stop` | `serial` | [`packages/core/agent/src/types.ts:570`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`strictSerial (serial)`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | +| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:303`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:317`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:590`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:422`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic), [`user-approval`](../packages/ui/user-approval) | +| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:440`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | +| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:345`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:469`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:521`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`tool-skill`](../packages/skill/tool-skill) | +| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:365`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`invariants`](../packages/support/invariants) | +| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:331`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:536`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:554`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/turn-stop` | `serial` | [`packages/core/agent/src/types.ts:573`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`strictSerial (serial)`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | `approval/request` | `waterfall` | [`packages/ui/user-approval/src/index.ts:72`](../packages/ui/user-approval/src/index.ts) | [`user-approval`](../packages/ui/user-approval) (`waterfall`) | [`acp`](../packages/ui/acp) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `llm/stream` | `waterfall` | [`packages/llm/llm/src/index.ts:39`](../packages/llm/llm/src/index.ts) | [`llm`](../packages/llm/llm) (`waterfall`) | [`invariants`](../packages/support/invariants), [`llm-replay`](../packages/support/llm-replay) | -| `session/created` | `emit` | [`packages/core/session/src/index.ts:47`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence) | -| `session/event` | `emit` | [`packages/core/session/src/index.ts:61`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence), [`stdio-agent`](../packages/ui/stdio-agent) | -| `session/flush` | `parallel` | [`packages/core/session/src/index.ts:79`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | +| `session/created` | `emit` | [`packages/core/session/src/index.ts:50`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence) | +| `session/disposed` | `emit` | [`packages/core/session/src/index.ts:62`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | - | +| `session/event` | `emit` | [`packages/core/session/src/index.ts:76`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence), [`stdio-agent`](../packages/ui/stdio-agent) | +| `session/flush` | `parallel` | [`packages/core/session/src/index.ts:94`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | | `skill/provider-added` | `emit` | [`packages/skill/skill/src/index.ts:132`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | | `skill/provider-removed` | `emit` | [`packages/skill/skill/src/index.ts:138`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | | `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:115`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | diff --git a/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md b/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md index 2b1c198812..8e1acd1638 100644 --- a/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md +++ b/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md @@ -18,7 +18,7 @@ A new `cancel()` verb on the `Agent` interface — the single public stop primit `ctx.agents.create`/`resume` (and the `AgentFactory` interface) return `AgentHandle = { agent: Agent; dispose(): Promise }`. The disposer is a **capability** — only the holder can tear down exactly this agent: stop its loop, `await` the loop's exit (true quiescence, not just the `disposed` status flip), unregister it, and remove its session from the store. `ctx.agents.get(id)` still returns a bare `Agent`. Config-created agents stay owned by the `AgentLoop` fiber (the handle is discarded). ACP holds each session's disposer in its `SessionRecord` and runs it on disconnect/teardown, so a bare client disconnect leaves no registered agent and no session-store entry — even when `session/load` races teardown (the just-resumed handle is disposed before the closed-guard throw). -**Teardown ORDER is load-bearing for durability**, and the implementation folds the session lifecycle into the agent's SINGLE composite cordis effect (`SessionStore.prepare`/`enter`/`announce`, replacing a sibling-effect split). A fiber unload disposes sibling effects concurrently (`Promise.all`), which would race the session's `onAppend` detach against the loop's closing `session/flush` and drop the closing `turn/end`; inside one effect the disposers run as an ordered LIFO chain (loop stopped + `await agent.done` BEFORE the session detaches), so the loop's final flush is captured on BOTH the handle's `dispose()` and a fiber unload. The register disposer's `agent/disposed` emit is contained (a throwing listener must not reject the chain and skip the later session detach). +**Teardown ORDER is load-bearing for durability**, and the implementation folds the session lifecycle into the agent's SINGLE composite cordis effect (`SessionStore.prepare`/`enter`/`announce`, replacing a sibling-effect split). A fiber unload disposes sibling effects concurrently (`Promise.all`), which would race detaching the session store's private append observer against the loop's closing `session/flush` and drop the closing `turn/end`; inside one effect the disposers run as an ordered LIFO chain (loop stopped + `await agent.done` BEFORE the session detaches), so the loop's final flush is captured on BOTH the handle's `dispose()` and a fiber unload. The contained `agent/disposed` and `session/disposed` notifications cannot reject the chain or skip later teardown. ### 3. Bash owner token in the seam @@ -40,7 +40,7 @@ The bash owner-token comparison relies on `session.header.id` being unique among ## Alternatives considered - **A public `BashTask.owner` field** instead of the `BashExecutor.ownerOf(id)` seam — rejected: one read path, no redundant API. -- **Sibling cordis effects for the agent's session lifecycle** — rejected: a fiber unload disposes sibling effects concurrently (`Promise.all`), racing the session's `onAppend` detach against the loop's closing `session/flush`; the single composite effect's ordered LIFO chain is what captures the closing `turn/end` on both disposal paths. +- **Sibling cordis effects for the agent's session lifecycle** — rejected: a fiber unload disposes sibling effects concurrently (`Promise.all`), racing the store-owned append observer's detach against the loop's closing `session/flush`; the single composite effect's ordered LIFO chain is what captures the closing `turn/end` on both disposal paths. - **A separate step-only `abort()` beside `cancel()`** — shipped originally, then removed as unused; `cancel()` is the single public stop primitive ([the public-stop-surface RFC](../simplification/2026-06-20-public-agent-stop-surface.md)). ## Consequences diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index 981603cb19..436a208be8 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -11,7 +11,7 @@ This is a composition problem, not an application-isolation problem. Starting a | Surface | What varies by agent | Failure when it is only global | |---|---|---| | Tools | Available capabilities, a child-only tool, or a scoped replacement for one implementation | The model receives excess authority, or a child-specific tool leaks into every prompt | -| Prompt state | Persona, instructions, variables, and Code Mode SDK declarations | Every agent receives the same instructions or runtime facts | +| Prompt state | Persona, instructions, variables, and [Code Mode](../feature/2026-06-15-code-mode.md) SDK declarations | Every agent receives the same instructions or runtime facts | | Live policy | Hooks, execution guards, result observers, and continuation rules | A listener intended for one agent can alter another agent's work | | Lifetime | Cleanup when the agent fails, is cancelled, is disposed, or loses its owner | Registrations outlive the agent or disappear before its final work settles | @@ -19,23 +19,30 @@ Two consistency requirements make the problem deeper than filtering a list. Firs Second, some rules are invariants rather than cooperative extensions. An ordinary middleware listener may replace a prompt assembly, turn an allow into a deny, rewrite a result, force another model step, or short-circuit listeners registered after it. Structured output therefore cannot rely on being “first” or “last” in an extensible listener chain; the owning service needs a final boundary for rules that later listeners must not undo. -The subagent API makes both needs concrete. Two concurrent children can request different personas, tool filters, and output schemas. Those requests are honest only when each child receives an independently owned view and when its terminal-output protocol survives unrelated plugins. +Third, accepting a value must transfer ownership of the exact value that was checked. TypeScript `readonly` annotations disappear at runtime, callers and providers may expose stateful accessors, and a validation pass followed by a clone reads mutable input twice. Identity fields, schemas, session data, requests, and results therefore need runtime boundaries that capture each caller-owned field once, materialize data once, and expose only owner-controlled snapshots. Otherwise the checked, executed, logged, and observed views can diverge even when scope resolution itself is correct. + +The subagent API makes these requirements concrete. Two concurrent children can request different personas, tool filters, and output schemas. Those requests are honest only when each child receives an independently owned view and when its terminal-output protocol survives unrelated plugins. ## Decision Each live agent owns a registration context named `agent.ctx`, and services expose narrow owner-final policy boundaries where ordinary middleware ordering is not strong enough. Together these choices make one agent's world composable with normal plugin APIs while keeping authority, observation, and cleanup aligned. -The design has three parts: +The design has four parts: | Part | Rule | Purpose | |---|---|---| | Registration scope | A registration through a plain plugin context is global; the same registration through `agent.ctx` belongs to that agent | Reuse existing APIs for per-agent tools, prompt state, and listeners | | Lifecycle transaction | Create and resume await scoped setup while the agent and session are unpublished, then publish them in an ordered rollback-covered sequence | No observer sees a partially composed agent, and every failure path owns cleanup | | Owner-final policy | Prompt protection, tool guards, final tool-result observation, and terminal turn stopping run at service-owned boundaries | Invariants do not depend on listener registration order | +| Boundary ownership | Services capture fixed fields once, materialize lossless-JSON data once, and publish owner-controlled views | Validation, execution, persistence, and telemetry cannot observe different values from one call | + +Three domain terms recur below. A **Session** is one agent run's append-only event log, from which model history and durable replay are derived. **Lossless JSON** means JSON primitives plus dense arrays and plain objects that can be copied without changing meaning; the boundary rejects sparse arrays, cycles, exotic prototypes, non-finite numbers, negative zero, `undefined`, `bigint`, functions, and symbols instead of coercing or erasing them. **Code Mode** presents the model with a generated software-development-kit interface and a reserved `run_code` transport, rather than advertising every end-capability as a native tool. + +Ownership stays with the component that can enforce each fact. The scope package owns scope tags and carrier construction; each registry owns acceptance snapshots and resolution; the agent factory owns identity reservation, setup, and publication; the session owns accepted history; the tool and subagent services own their pipeline records; and the workflow host owns cancellation of the runs it started. A caller never validates a value that another component later rereads from the caller's mutable object. The scope is flat. An agent resolves the deployment-global layer plus its own layer; a child does not inherit registrations from its parent's scope. Parent/child lineage remains explicit session data, and parent-owned disposal links lifetimes without silently inheriting authority. -The implementation lives primarily in [`dsh-scope`](../../../../packages/core/scope/README.md), [`dsh-agent`](../../../../packages/core/agent/README.md), [`dsh-system-prompt`](../../../../packages/core/system-prompt/README.md), and [`dsh-tools`](../../../../packages/core/tools/README.md). The [generated Cordis event catalog](../../../cordis-catalog/events.md) is the exhaustive event-signature reference; this RFC explains why the contracts have their current shape. +The core implementation lives in [`dsh-scope`](../../../../packages/core/scope/README.md), [`dsh-agent`](../../../../packages/core/agent/README.md), [`dsh-agent-loop`](../../../../packages/core/agent-loop/README.md), [`dsh-session`](../../../../packages/core/session/README.md), [`dsh-system-prompt`](../../../../packages/core/system-prompt/README.md), and [`dsh-tools`](../../../../packages/core/tools/README.md). The composition example spans [`dsh-subagent`](../../../../packages/subagent/subagent/README.md), [`dsh-subagent-inprocess`](../../../../packages/subagent/subagent-inprocess/README.md), and [`dsh-workflow-workerthread`](../../../../packages/workflow/workflow-workerthread/README.md). The [generated Cordis event catalog](../../../cordis-catalog/events.md) is the exhaustive event-signature reference; this RFC explains why the contracts have their current shape. ## Background: the small Cordis vocabulary used here @@ -149,7 +156,11 @@ Calling a service through `agent.ctx` does not implicitly make every later read The tool view must not change because a caller kept the object it passed to `register()` or received a definition from `get()` or `visible()`. Registration therefore creates the stored identity once; future changes happen through explicit unregister/register effects. -Tool parameters cross the model and log boundary, so the registry materializes them with `snapshotJsonValue`: one recursive traversal reads each property once, rejects anything outside lossless JSON, and constructs the detached value that is actually stored. A check followed by `structuredClone` is not equivalent—a getter could return plain JSON to the check and a class instance to the clone, which would erase its prototype and silently accept different data. The first-party `defineTool()` helper closes the earlier authoring boundary with the same primitive: it reads every top-level option once, materializes the `SchemaSpec`, and derives an independent wire schema plus all later execute/presentation validation from that accepted snapshot. Without that split, mutating an author-owned spec after definition could make the model call a schema that the tool no longer accepts. Registration then reads every top-level definition field exactly once, validates, binds, and stores only those captured values; a stateful `parameters` or callback accessor therefore cannot make the checked definition differ from the executable one. It snapshots the scalar fields, binds each callback once to the original definition as its method receiver, and deep-freezes the stored record. Replacing `definition.execute` after registration therefore has no effect, while a callback can still deliberately read mutable state from its closure or original receiver. `get()` and `visible()` return the frozen stored definitions; `schemas()` returns detached schema projections. +Tool parameters cross the model and log boundary, so the registry materializes them with `snapshotJsonValue`: one recursive traversal reads each property once, rejects anything outside lossless JSON, and constructs the detached value that is actually stored. A check followed by `structuredClone` is not equivalent—a getter could return plain JSON to the check and a class instance to the clone, which would erase its prototype and silently accept different data. + +The first-party `defineTool()` helper closes the authoring boundary with the same primitive. It reads every top-level option once, materializes the `SchemaSpec`, and derives an independent wire schema plus all later execute and presentation validation from that accepted snapshot. Without that split, mutating an author-owned spec after definition could make the model call a schema that the tool no longer accepts. + +Registration then reads every top-level definition field exactly once, validates, binds, and stores only those captured values; a stateful `parameters` or callback accessor therefore cannot make the checked definition differ from the executable one. It snapshots the scalar fields, binds each callback once to the original definition as its method receiver, and deep-freezes the stored record. Replacing `definition.execute` after registration therefore has no effect, while a callback can still deliberately read mutable state from its closure or original receiver. `get()` and `visible()` return the frozen stored definitions; `schemas()` returns detached schema projections. ```text defineTool(options): @@ -208,7 +219,7 @@ The operation being described determines the key; callers cannot attach an unrel | `approval/request` | `ApprovalRequest.agent` | | `tools/pre-execute`, `tools/execute`, `tools/post-execute`, `tools/result` | `ToolExecution.agent`, or no key for an agent-less call | | `system-prompt/assemble` | `AssembleContext.scope` | -| `session/created`, `session/event`, `session/flush` | The owner scope captured when the session enters the store | +| `session/created`, `session/disposed`, `session/event`, `session/flush` | The owner scope captured when the session enters the store | | `subagent/start`, `subagent/end` | The delegating parent agent | Approval requests cross an asynchronous answer boundary, so the service snapshots the accepted record synchronously. It preserves the exact agent and abort-signal identities but copies the scalar fields, captures the agent's session once, and uses that one snapshot for `approval/asked`, scoped dispatch, cancellation, policy, and `approval/decided`. Mutating the caller-owned record after `request()` returns therefore cannot split the audit pair or redirect the question to another agent's listeners. @@ -234,7 +245,7 @@ The real helpers fuse values that must agree. `agentEvents(context, agent)` uses Function-style listeners receive the carrier as `this`, and agent event APIs allow them to call subject methods. The carrier is therefore a JavaScript proxy that reads and writes through to the real subject and binds methods to it. -Binding matters for classes with JavaScript private fields: a method called with the proxy itself as receiver would fail the runtime private-field identity check. The proxy preserves the subject's existing event filter and JavaScript object invariants, but it is intentionally not identity-equal to the subject; event arguments carry the real object whenever identity matters. +Binding matters for classes with JavaScript private fields: a method called with the proxy itself as receiver would fail the runtime private-field identity check. The carrier therefore uses a dedicated surrogate proxy target with its own immutable composed-filter slot, while ordinary property access, writes, own-key visibility, methods, invocation, and construction delegate to the real subject; callable carriers also preserve whether the subject is constructable. For non-overlay properties owned by the subject, descriptor queries preserve values and flags except that `configurable` is reported as `true`, which is the Proxy-safe way for an extensible surrogate to expose a property it does not itself own. A filter property pinned on the subject before, during, or after construction cannot trigger the proxy invariant that would otherwise force delivery to use the subject's raw filter and silently drop scope isolation. The carrier is intentionally not identity-equal to the subject; event arguments carry the real object whenever identity matters. `Scoped` is a TypeScript-only marker that requires this carrier at declared scoped dispatch sites. It improves authoring but adds no runtime security, so runtime marks and development invariants check the same contract for JavaScript, casts, and hand-written dispatches. @@ -246,11 +257,13 @@ An agent's scope, session, registry entry, and driver form one owned transaction Programmatic create and resume reserve both the agent ID and session ID before work that can await. Create prepares a fresh or seeded session; resume first loads and reconstructs the persisted session. Both paths then construct the agent, mint `agent.ctx`, and install the complete teardown skeleton before awaiting setup. -The factory captures IDs and the setup callback and clones caller-owned agent options before the first asynchronous boundary. Seed events and session metadata take a stricter route: pre-cloning either could erase a class or exotic prototype before the session validator saw it, so the factory reads each reference once and hands it synchronously to `SessionStore.prepare`. That boundary rejects exotic shells, reads each accepted metadata field once, and recursively validates and copies every seed value in one pass. One-pass materialization matters because `validate(value); structuredClone(value); validate(clone)` still reads a getter twice, and the clone can erase the prototype of a class instance returned only on the second read. The accepted metadata becomes a detached, deep-frozen `SessionHeader` whose id must equal the session id. Resume applies the same rule after persistence loading by capturing `createdAt`, `cwd`, `parentSession`, and `seedLength` once before reconstruction. A caller or stateful backend therefore cannot move the transaction away from the identities it reserved, change persistence routing or lineage after publication, or sanitize invalid data into acceptance. +The factory first captures the requested IDs, setup callback, and caller-owned agent options. Seed events and session metadata take a stricter route than a preliminary clone: cloning can erase an exotic prototype before validation sees it, so the factory reads each reference once and hands it synchronously to the session store's reservation-bound prepare operation. That boundary rejects exotic shells, reads accepted metadata fields once, and recursively materializes each seed record in one pass. Resume applies the same rule to persistence output by capturing the loaded header fields once before reconstruction. The transaction therefore cannot move to different identities, storage routing, or lineage after an asynchronous boundary. -The session log also closes the ownership boundary after acceptance. Seed and append paths share exact runtime surface-metadata checks: surface events require either `'append'` or an exact replace record with non-negative safe-integer bounds, provenance is an array of non-negative safe integers, and non-surface events reject both fields. Accepted events are deep-frozen, and `session.events` returns a cached frozen array snapshot rather than the mutable internal array. A later append invalidates the cache and publishes a new snapshot; any earlier snapshot remains unchanged. This preserves append-only behavior even for JavaScript callers that cast away TypeScript's readonly view or retain an event reference received from `append` or `session/event`. +Before setup can observe the new objects, their ownership-bearing public properties become stable runtime data slots rather than TypeScript-only `readonly` promises. The concrete agent pins its ID, accepted options, and session; the factory binds its scope context exactly once. The session pins its ID and detached, deep-frozen header. Registry detach closures likewise close over their accepted map keys instead of rereading public properties during teardown. A JavaScript assignment or stateful accessor therefore cannot split registry lookup, dispatch, persistence, and the driver into different identities. -Reservations prevent two concurrent transactions from composing different unpublished agents under the same public identity. They remain held across persistence loading and setup and are released on every success or failure path. +The session owns the accepted log as described in [the session-immutability RFC](2026-06-11-dev-invariants-over-deep-readonly.md). Seed and append paths materialize lossless JSON once, validate both the event envelope and the metadata that places message-producing events into derived model history, and deep-freeze the exact accepted event. `session.events` returns a frozen snapshot that never grows later. The store keeps append notification and scope-carrier state in store-owned private tables instead of caller-writable `Session` fields, so outside JavaScript cannot suppress or redirect `session/event` dispatch. + +Reservations prevent two concurrent factory transactions from composing different unpublished objects under the same public identities. Each reservation belongs both to the factory transaction and to the Cordis fiber that requested it: explicit release covers every success or failure path, while owner-fiber disposal is the backstop for an abandoned handle during plugin unload or HMR. The agent registry and session store recognize their own reserved keys: setup code that calls public reserve, prepare, create, register, or bare enter APIs with the same IDs fails. The session capability can prepare exactly one object, and publication succeeds only when both stores receive the factory-held exact capabilities; the session store additionally checks that the capability owns that exact prepared session. This closes the otherwise possible path in which setup publishes a substitute object under an ID that the factory merely tracked in a separate pending set, without letting a vanished owner wedge the ID forever. Resume installs an owner-liveness sentinel before reserving IDs or starting persistence I/O, then races loading against owner disposal. If disposal wins, resume rejects and releases both reservations immediately; a backend promise that settles later cannot publish. After a successful load, the factory synchronously installs the full agent lifecycle before removing the sentinel, so ownership passes from load to setup without an unobserved disposal gap. @@ -260,18 +273,18 @@ The sentinel exists only for the interval in which no agent lifecycle can exist resume(request): snapshot request ids, options, and setup callback sentinel = owner.effect(onDispose => signal ownerDisposed) - reserve(agentId, sessionId) + reservations = reserve agentId in AgentRegistry and sessionId in SessionStore try: persisted = await firstOf(persistence.load(sessionId), ownerDisposed) - session = reconstruct(persisted) + session = reservations.session.prepare(reconstruct persisted data) # This call installs the full lifecycle before its first await. - starting = startOwned(agentId, session, options, setup) + starting = startOwned(agentId, session, options, reservations, setup) disarm and dispose sentinel return await starting finally: - release both ids + release both reservation capabilities settle the sentinel transaction ``` @@ -326,8 +339,8 @@ The implementation keeps publication synchronous and leaves rollback to the surr ```text publish(world): - world.detachSession = world.agent.ctx.sessions.enter(world.session) - world.detachAgent = app.agents.enter(world.agent) + world.detachSession = world.agent.ctx.sessions.enter(world.session, world.sessionReservation) + world.detachAgent = app.agents.enter(world.agent, world.agentReservation) app.sessions.announce(world.session) app.agents.announce(world.agent) world.driver.enableDrivingVerbs() @@ -337,7 +350,11 @@ publish(world): Both registry entries exist before the first creation listener runs, and setup-installed listeners receive both announcements. Driving opens immediately before `agent/session-start`, so that event remains the first supported place for a listener to inject or queue startup work. -The sequence is not described as atomic because observers run between its steps. If a `session/created` or `agent/created` listener throws, the transaction rolls the registry entries and scope back, but effects already performed by an earlier listener cannot be retracted. An announced agent is paired with its disposal notification during rollback. `agent/session-start` is a non-vetoing notification: listener failures are logged and contained so the loop still starts. +The sequence is not described as atomic because observers run between its steps. If a `session/created` or `agent/created` listener throws synchronously, the transaction rolls the registry entries and scope back, but effects already performed by an earlier listener cannot be retracted. Each store therefore marks its announcement as begun before invoking creation listeners and rejects a repeat or reentrant announcement before dispatch. Rollback emits `session/disposed` or `agent/disposed` exactly once for every corresponding creation announcement that began, including a partial emit in which an early listener observed creation before a later listener threw. An object entered but never announced has no disposal notification because no observer was told it existed. + +Creation notification preserves that synchronous veto while also defending against JavaScript's asynchronous callback shape. A listener may return a promise even though the event type returns `void`; the dispatcher does not await it because publication has no asynchronous gap, but it observes and logs a later rejection. Such a rejection is too late to roll back, does not become unhandled, and does not starve the listeners invoked after that callback. + +The disposal notifications and `agent/session-start` are deliberately non-vetoing. Their dispatchers invoke every listener synchronously and independently; they log and contain both a synchronous throw and a rejection from a returned promise. Returned promises are observed for failure but not awaited, so an asynchronous notification listener cannot delay rollback or teardown, veto driver startup, or starve a later listener. ### Teardown stops work before revoking its world @@ -346,14 +363,16 @@ Every owner path uses the same reverse order: stop the loop and await its actual ```text disposeOwnedAgent(world): await world.stopDriver() # waits for loop exit and all agent-started flushes - world.detachAgent() # emits agent/disposed when announced - world.detachSession() + world.detachAgent() # leaves registry; emits agent/disposed if announced + world.detachSession() # stops event feed, leaves store; emits session/disposed if announced await world.scope.dispose() ``` The actual Cordis generator yields these disposers in reverse so its last-in-first-out teardown executes in the order shown. -`agent/disposed` means the driver is quiescent and the agent has left the registry; session detachment and scope unwind may still be completing after that notification. `AgentHandle.dispose()` is memoized so concurrent owners await the same full transaction, and `Scope.dispose()` provides the corresponding shared boundary for direct scope disposal and raw-disposer races. +`agent/disposed` means the driver is quiescent and the agent has left the registry; the session is still live during that notification. `session/disposed` follows after append notification has been detached and the session has left its store. The scope is still live when each disposal listener is selected and invoked, although returned asynchronous work is observed rather than awaited. Both notifications use the same scope key and delivery rule as their creation partners and occur exactly once only when those creation announcements began. + +`AgentHandle.dispose()` is memoized so concurrent owners await the same full transaction, and `Scope.dispose()` provides the corresponding shared boundary for direct scope disposal and raw-disposer races. Parent-owned subagents use explicit ownership rather than capability inheritance. The driver creates one run-owner fiber under `parent.ctx` and invokes the child factory through that fiber, so lifecycle ownership exists before setup or publication begins; disposing a parent reaches its descendants even if a delegating tool never reaches its own `finally`. The child still receives a newly minted scope and resolves only global plus child-scoped capabilities. @@ -371,6 +390,8 @@ A global section protection also reserves the registry name against scoped shado Restoration is intentionally not a whole-assembly reset. The service first removes protected names from the waterfall result, then reinserts protected canonical entries in their canonical order immediately before the first surviving later unprotected canonical neighbor, or at the end when no such neighbor survives. Unprotected entries keep the ordering and definitions chosen by the waterfall. This anchor rule preserves the protected contribution's meaningful local placement without claiming that protection restores every global relative position after arbitrary listener reordering. +Only the restoration inputs are detached before dispatch: the canonical section array when section protection is active and the canonical tool array when tool protection is active. The waterfall receives the original mutable assembly, not a clone, and variables and other merge-extensible fields remain entirely under ordinary waterfall semantics. + ```text registerSection(input, scope): stored = copy(input.name, input.order, input.text) @@ -379,12 +400,14 @@ registerSection(input, scope): sectionLayer(scope).add(stored) assemble(context): - canonical = assemble registries for context.scope - transformed = await systemPromptAssembleWaterfall(clone(canonical)) + assembly = assemble registries for context.scope + canonicalSections = active section protection ? clone(assembly.sections) : absent + canonicalTools = active tool protection ? clone(assembly.tools) : absent + transformed = await systemPromptAssembleWaterfall(assembly) - for each protected name: + for each protected name in the corresponding canonical array: remove every transformed entry with that name - if canonical contains the name: + if the canonical array contains the name: if a later unprotected canonical neighbor survived: insert the canonical entry before that neighbor else: @@ -399,9 +422,11 @@ Code Mode uses global protection for the `tools:sdk` section and reserved `run_c ### Tool executions have stable identity -`ctx.tools.execute(input)` accepts a caller-owned `ToolExecutionInput` and snapshots it into a distinct pipeline-owned `ToolExecution`. It captures the required `callId`/`name` correlation identity, then reads every other top-level caller field once before using it, so parent-token validation, scope routing, policy, dispatch, and final observation all see one coherent identity; those captured optional fields construct the normalized error shell if a later accessor or argument validation fails. The registry materializes `arguments` in one lossless-JSON traversal and deep-freezes the result, so policy and dispatch receive exactly the value that passed validation. A cloneable but mutable exotic such as `Map` or a class instance is rejected before policy rather than smuggled through an apparently frozen wrapper. Invalid input still produces one normalized final error notification; a throwing `callId` or `name` accessor is outside that guarantee because no trustworthy result correlation exists. +`ctx.tools.execute(input)` accepts a caller-owned `ToolExecutionInput` and snapshots it into a distinct pipeline-owned `ToolExecution`. It reads `callId` and `name` once and requires each value to be a string before treating the pair as trustworthy correlation identity. A throwing accessor or non-string value rejects before `tools/result`, because even an error result could not carry a valid identity. After that boundary, the registry reads every other top-level caller field once, and any later accessor or validation failure becomes one normalized final error notification built from the already accepted strings and captured optional fields. -The registry assigns each pipeline trip a frozen, property-free `ToolExecutionToken`; callers cannot choose that token. The execution's `token`, `callId`, `name`, `agent`, optional opaque `parent` token, and detached `arguments` are non-writable and non-configurable from the first policy listener onward. `signal` is the only operational field: an around-dispatch wrapper may add, replace, or remove it, and the registry freezes the complete execution before outcome observation. +The registry materializes `arguments` in one lossless-JSON traversal and deep-freezes the result, so parent-token validation, scope routing, policy, dispatch, and final observation receive exactly the value that passed validation. A cloneable but mutable exotic such as `Map` or a class instance is rejected before policy rather than smuggled through an apparently frozen wrapper. + +The registry assigns each pipeline trip a frozen, property-free `ToolExecutionToken`; callers cannot choose that token. The execution is identity-stable, not fully immutable, while the pipeline runs: its `token`, `callId`, `name`, `agent`, optional opaque `parent` token, and detached `arguments` are non-writable and non-configurable from the first policy listener onward. `signal` is the only operational field; an around-dispatch wrapper may add, replace, or remove it. The registry freezes the complete execution before outcome observation. Stable identity prevents a listener from changing which capability or scope was authorized after policy ran. It also gives commit-style observers a safe `WeakMap` key even when an adapter reuses a model call ID. @@ -411,14 +436,19 @@ The input-to-execution conversion is intentionally one-way: ```text prepareExecution(input): - accepted = read callId, name, arguments, agent, parent, signal exactly once + callId = read input.callId exactly once + name = read input.name exactly once + require callId and name are strings + # A failure above rejects: no trustworthy correlation identity exists. + + accepted = read arguments, agent, parent, and signal exactly once require accepted.parent is absent or a registry-minted token detachedArguments = snapshotLosslessJson(accepted.arguments) execution = { token: new frozen property-free object, - callId: accepted.callId, - name: accepted.name, + callId, + name, arguments: deepFreeze(detachedArguments), agent: accepted.agent, parent: accepted.parent, @@ -447,8 +477,12 @@ The entire registry method reads like one authority ladder: ```text execute(input): + callId = read input.callId exactly once + name = read input.name exactly once + require callId and name are strings + try: - execution = prepareExecution(input) + execution = prepareExecutionFromTrustedIdentity(input, callId, name) catch invalidInput: execution = frozen identity shell with arguments = undefined result = errorResult(invalidInput) @@ -488,6 +522,8 @@ Waterfalls can transform only at their named stages. Guards can only deny, and t ### `agent/turn-stop` makes a composed continuation terminal +Steering is input injected into an already running turn for the next model step; ordinary queued prompts wait for a future turn. The loop normally preserves that distinction by moving leftover steering into another step while leaving the queued-prompt FIFO alone. + Ordinary continuation remains extensible. The loop computes a default, runs the `agent/turn-continuation` waterfall, records any force-continue reason as steering, and folds pending steering into the decision because steering normally demands another model step. The scoped serial `agent/turn-stop` checkpoint runs after that folding. Its strict serial helper consults listeners in order until one returns a non-`undefined` value; a listener returns `{ action: 'stop' }` or abstains with `undefined`. The dedicated helper exists because ordinary Cordis serial dispatch treats `null` and `false` as framework abstentions, while this public contract has exactly one abstention value. A stop is terminal, so later listeners and pending steering cannot restore continuation. A malformed result, including `null` or `false`, or a throwing policy closes the current turn with an error while leaving the driver available for later work. @@ -524,13 +560,17 @@ In-process subagents demonstrate how the scope, lifecycle, and final-policy piec ### Inputs and ownership are fixed before asynchronous creation -Provider registration first freezes an acceptance snapshot of the provider name, capability flags, parent-context descriptor, and `start` callback; the callback is bound to the original provider receiver so its intentional internal state stays live. Lookup, validation, model-facing wording, dispatch, lifecycle notifications, and HMR cleanup all use that snapshot. Mutating or reusing the caller's provider object later therefore cannot rename a live entry, change its advertised powers, replace its callback, or make its disposer delete the wrong key. +Provider registration first freezes an acceptance snapshot of the provider name, capability flags, parent-context descriptor, and `start` callback; the callback is bound to the original provider object so its intentional internal state stays live. Lookup, validation, model-facing wording, dispatch, lifecycle notifications, and hot-reload cleanup all use that snapshot. Mutating or reusing the caller's provider object later therefore cannot rename a live entry, change its advertised powers, replace its callback, or make its disposer delete the wrong key. Starting a run reads every top-level request field once before capability validation, then snapshots every accepted field before asynchronous owner setup. This order makes checked and delegated capabilities identical even for a JavaScript caller with stateful accessors. Fixed scalars are checked at the same boundary: `maxDepth` must be a non-negative safe integer and `persona` must be a string. The parent and abort signal are retained as identity capabilities but never reread from the mutable request record; tool filters, seed events, agent options, output schema, and prompt are detached through the one-pass lossless-JSON materializer. The exported in-process driver repeats this boundary for direct callers before it awaits run-owner activation, including taking one seed snapshot from which it derives both the child prefix and `seedLength`. Later caller mutation therefore cannot change lifecycle scope, configuration, the schema enforced by the capture tool, or the prompt eventually logged and sent. The driver first installs provider ownership. Only after that succeeds does it attach the request's abort listener and create one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves neither a child nor an orphaned listener. The child factory runs through the owner fiber. Parent teardown, provider teardown, and manual run disposal all dispose this same node; moving it out of the active state synchronously prevents an unpublished setup from publishing afterward, while all three paths follow one quiescence promise. This structured ownership does not change the child's flat capability view. -The provider's run separates acceptance from publication with `started: Promise`, but the service does not return that caller-owned handle directly. It reads `id`, `started`, `result`, and every method once, binds methods to the original provider receiver, and returns a frozen service-owned wrapper. Its `result` promise captures `output`, optional `structured`, and `stopReason` once and resolves to one detached, deeply frozen lossless-JSON value shared by the caller and lifecycle telemetry; malformed provider data rejects as an infrastructure fault and produces contained `error` telemetry. For spawn and fork, the accepted `started` promise fulfills only after the child factory returns a published handle, so the service can emit `subagent/start` with `ctx.agents.get(id)` already live; it rejects when rollback prevents publication. The service observes the normalized result immediately but buffers its end payload until readiness, preserving start-before-end order without leaving an early rejection unhandled. Both lifecycle payloads are deeply frozen before contained per-listener dispatch, so one observer cannot corrupt the caller or a peer. A readiness rejection emits neither lifecycle event. The result driver awaits the same boundary before sending the child prompt. +The provider's run separates acceptance from publication with `started: Promise`, but the service does not expose that caller-owned handle directly. It captures `id`, `started`, `result`, and each method once, binds methods to the provider-owned run handle, and returns a frozen service-owned wrapper. Capturing `dispose` first also preserves a rollback capability if a later accessor or method check reveals a malformed handle. + +The wrapper's `result` promise captures `output`, optional `structured`, and `stopReason` once and resolves to one detached, deeply frozen lossless-JSON value shared by the caller and lifecycle telemetry. Malformed terminal data is an infrastructure fault; it rejects only after the service has started rollback of the provider attempt. The service observes the normalized result immediately, before waiting for readiness, so an early rejection is never temporarily unhandled. + +For spawn and fork, the accepted `started` promise fulfills only after the child factory returns a published handle. The service can then emit `subagent/start` with `ctx.agents.get(id)` already live and release any buffered terminal event; if readiness rejects, it emits neither start nor end. Lifecycle notification is fire-and-forget and non-vetoing: each listener receives the same deeply frozen payload, and synchronous throws or returned-promise rejections are logged and contained per listener without awaiting them. The child result driver awaits the same readiness boundary before sending the prompt. ```text startInProcessRun(providerContext, acceptedRequest): @@ -563,9 +603,10 @@ SubagentService.start(...): result: normalize once into detached, deeply frozen lossless JSON }) attach settlement handlers to serviceRun.result immediately - await serviceRun.started - emit subagent/start; later emit the buffered or eventual subagent/end - return serviceRun + attach handlers to serviceRun.started: + on fulfillment, emit subagent/start and then buffered or eventual subagent/end + on rejection, discard buffered lifecycle telemetry + return serviceRun immediately Workflow worker bridge after receiving returnedRun: register the run so cancellation can reach pre-publication work @@ -581,7 +622,11 @@ Before publishing the workflow's own result: only then settle the workflow result ``` -Every downstream protocol that announces a subagent must honor the same boundary. The workflow worker bridge therefore registers the returned run before waiting, observes and snapshots `result` immediately, sends `ChildStarted` only after `started` fulfills, and sends `ChildStartError` plus host-driven disposal when readiness rejects. Before the workflow result becomes observable, the host also drives both permitted cancellation channels—the shared abort signal and each registered run's explicit `cancel()`—because a fire-and-forget child still waiting on readiness has no worker-side handle that could relay cancellation. Provider cancel callbacks are contained independently so one broken implementation cannot prevent peers from receiving cancellation or wedge the workflow result. This keeps cancellation able to reach pending creation, prevents an early result rejection from going unhandled, ensures `workflow/agent-start` never names an unpublished child, and prevents a child from publishing after its workflow has ended. +Every downstream protocol that announces a subagent must honor the same boundary. The workflow worker bridge therefore registers the returned run before waiting, observes and snapshots `result` immediately, sends `ChildStarted` only after `started` fulfills, and sends `ChildStartError` plus host-driven disposal when readiness rejects. + +Cancellation before readiness is a publication decision, not merely a flag for later result mapping. The in-process run synchronously deactivates its owner fiber, so the agent factory's liveness check fails, `started` rejects, and neither the child session nor agent can publish. The run's result still settles as `aborted`. Before the workflow's own result becomes observable, its host likewise drives both permitted cancellation channels: it aborts the shared request signal and calls each registered run's `cancel()`, including runs still waiting on readiness. Provider cancel callbacks are contained independently so one broken implementation cannot prevent peers from receiving cancellation or wedge the workflow result. + +Together these rules prevent an early result rejection from going unhandled, ensure `workflow/agent-start` never names an unpublished child, and prevent a child from publishing after its workflow has ended. Parent teardown reaches `runOwner` by nesting; the provider and returned run handle reach the same node through their explicit disposers. @@ -607,7 +652,7 @@ The table describes the registry's named canonical contribution. An unrelated as ### Capture uses stage, final commit, monotonic denial, and terminal stop -The capture tool validates its arguments and stages the cloned value in a JavaScript `WeakMap` keyed by the immutable `ToolExecution`. This is an object-identity table whose key does not keep an abandoned execution alive. Validation failure becomes the ordinary `INVALID_ARGS` error that the model can correct within the turn. +The capture tool validates its arguments and stages the cloned value in a JavaScript `WeakMap` keyed by the identity-stable `ToolExecution`. This is an object-identity table whose key does not keep an abandoned execution alive. Validation failure becomes the ordinary `INVALID_ARGS` error that the model can correct within the turn. The scoped `tools/result` observer commits a direct native capture only when that exact execution's authoritative final result succeeds. A later call with a reused string call ID cannot reach the weak-keyed stage, and a post-execution block cannot promote it. @@ -744,9 +789,9 @@ The costs are concentrated in dispatch discipline, per-scope registry state, and - `run_code` is protected transport infrastructure rather than a filterable end capability, so a policy that must forbid programs denies execution at the tool-policy layer instead of removing the transport from a Code Mode prompt. - Prompt protection restores named canonical contributions and their anchor placement, not the entire assembly; unprotected output remains extensible, while a globally protected section name is deliberately unavailable for scoped shadowing. - Terminal turn stopping has authority to discard pending steering. That power is appropriate for owner-enforced terminal protocols and too strong for ordinary cooperative continuation policy. -- Programmatic `ctx.agents.create()` and `ctx.agents.resume()` are asynchronous because they await setup. The config-only `ctx.agentLoop.create()` path has no setup callback and remains synchronous. +- Programmatic `ctx.agents.create()` and `ctx.agents.resume()` are asynchronous because they await setup. The direct no-setup `ctx.agentLoop.create()` path, used by configuration and programmatic callers that already have complete options, remains synchronous. - Ordered composition requires both an exact raw scope disposer and a shared public quiescence promise; the dual surface reflects two distinct Cordis lifecycle requirements. ### Deliberate boundaries -The scope primitive is generic, but this decision applies it only where one agent needs a coherent registration view: tools, prompt state, scoped events, sessions, and in-process subagent composition. `agent.ctx` does not automatically scope every service call; filesystem policy, LLM interception, background subagent state, and future registries retain their existing seams until their own designs explicitly adopt the context rule. +The scope primitive is generic, but this decision applies it only where one agent needs a coherent registration view: tools, prompt state, scoped events, sessions, and in-process subagent composition. `agent.ctx` does not automatically scope every service call; filesystem policy, LLM interception, background subagent state, and other registries retain their existing seams until their own designs explicitly adopt the context rule. diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts index aea7927571..af8e9905e4 100644 --- a/packages/cordis/tool-cordis/src/api-catalog.ts +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -65,11 +65,12 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ key: 'agents', summary: 'Agent registry (`ctx.agents`): tracks live agents so UI, hook, and orchestrator plugins can find them without depending on the concrete loop package.', methods: [ + 'reserve(id: AgentId): AgentRegistrationReservation', 'setFactory(factory: AgentFactory): () => Promise | void', 'async create(options: CreateAgentOptions): Promise', 'async resume(options: ResumeAgentOptions): Promise', 'register(agent: Agent): () => Promise | void', - 'enter(agent: Agent): () => void', + 'enter(agent: Agent, reservation?: AgentRegistrationReservation): () => void', 'announce(agent: Agent): void', 'get(id: AgentId): Agent | undefined', 'list(): Agent[]', @@ -155,9 +156,10 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ key: 'sessions', summary: 'In-memory session store (`ctx.sessions`).', methods: [ + 'reserve(id: SessionId): SessionRegistrationReservation', 'create(id?: SessionId, options?: CreateSessionOptions): Session', 'prepare(id?: SessionId, options?: CreateSessionOptions): Session', - 'enter(session: Session): () => void', + 'enter(session: Session, reservation?: SessionRegistrationReservation): () => void', 'announce(session: Session): void', 'async flush(session: Session): Promise', 'get(id: SessionId): Session | undefined', @@ -353,6 +355,12 @@ export const EVENT_API: readonly EventApiEntry[] = [ signature: '\'session/created\'(this: Scoped, session: Session): void', summary: 'A session was created in the store.', }, + { + name: 'session/disposed', + mode: 'emit', + signature: '\'session/disposed\'(this: Scoped, session: Session): void', + summary: 'A previously announced session left the store.', + }, { name: 'session/event', mode: 'emit', @@ -503,6 +511,10 @@ export const TYPE_API: readonly TypeApiEntry[] = [ name: 'AgentOptions', declaration: 'export interface AgentOptions {\n model?: string;\n}', }, + { + name: 'AgentRegistrationReservation', + declaration: 'export interface AgentRegistrationReservation {\n readonly id: AgentId;\n release(): void;\n}', + }, { name: 'AgentStatus', declaration: 'export type AgentStatus = \'idle\' | \'running\' | \'disposed\';', @@ -803,6 +815,10 @@ export const TYPE_API: readonly TypeApiEntry[] = [ name: 'SessionId', declaration: 'export type SessionId = Branded<\'SessionId\'>;', }, + { + name: 'SessionRegistrationReservation', + declaration: 'export interface SessionRegistrationReservation {\n readonly id: SessionId;\n prepare(options?: CreateSessionOptions): Session;\n release(): void;\n}', + }, { name: 'SkillCandidate', declaration: 'export interface SkillCandidate extends SkillSummary {\n rank: number;\n locator: unknown;\n path?: string;\n metadata?: Record;\n}', diff --git a/packages/core/agent-loop/README.md b/packages/core/agent-loop/README.md index ac1a0e079f..a8da612305 100644 --- a/packages/core/agent-loop/README.md +++ b/packages/core/agent-loop/README.md @@ -8,9 +8,9 @@ This is the only package in the harness that contains concrete loop logic. Every ### Public API -Lifecycle (scoped): programmatic creation and resume snapshot caller-owned identity/configuration data, reserve both IDs, mint `agent.ctx`, and install the ordered teardown skeleton before awaiting optional `setup`. A create hands one-read raw seed and metadata references synchronously to the session boundary, which rejects exotic shells and materializes accepted values in a single recursive pass; pre-cloning either value could incorrectly sanitize prototypes. Resume installs an owner-liveness sentinel before persistence load, captures each loaded metadata field once, then hands ownership directly to the full lifecycle. After setup resolves, the factory checks its lifecycle flag, owner-fiber state, and owning agent status around one microtask checkpoint so a same-turn Cordis unload wins before publication. Successful setup inserts both session and agent before announcing either, enables driving immediately before `agent/session-start`, then starts the loop. Setup calls to `send`/`steer`/`inject`/`cancel` reject structurally; load/setup rejection or owner unload publishes nothing. Teardown runs stop/drain (including outstanding idle-injection flushes) → unregister → detach session → unwind scope. All `agent/*` dispatches go through `agentEvents(ctx, agent)`; per-step assembly through `assembleContextFor(agent)`; the turn-end durability checkpoint through `ctx.sessions.flush(session)`. +Lifecycle (scoped): programmatic creation and resume snapshot caller-owned identity/configuration data, obtain registry/store-owned capabilities for both unpublished IDs, mint `agent.ctx`, and install the ordered teardown skeleton before awaiting optional `setup`. The capabilities reject competing `register`/`enter`/`prepare`/`create` calls, so setup cannot publish the factory objects or same-id replacements. A create hands one-read raw seed and metadata references synchronously to the session boundary, which rejects exotic shells and materializes accepted values in a single recursive pass; pre-cloning either value could incorrectly sanitize prototypes. Resume installs an owner-liveness sentinel before persistence load, captures each loaded metadata field once, then hands ownership directly to the full lifecycle. After setup resolves, the factory checks its lifecycle flag, owner-fiber state, and owning agent status around one microtask checkpoint so a same-turn Cordis unload wins before publication. Successful setup inserts both session and agent before announcing either, enables driving immediately before `agent/session-start`, then starts the loop. The concrete agent owns runtime-pinned `id`, frozen detached `options`, `session`, and `ctx` bindings. Load/setup rejection or owner unload publishes nothing; partial creation announcements are paired during rollback. Teardown runs stop/drain (including outstanding idle-injection flushes) → unregister → detach session → unwind scope. All non-vetoing `agent/*` notifications go through `agentEvents(ctx, agent)`, which contains sync/async listener failures per observer; per-step assembly goes through `assembleContextFor(agent)`; the turn-end durability checkpoint goes through `ctx.sessions.flush(session)`. -- `ctx.agentLoop.create(id: string, options?: AgentOptions, meta?: { cwd?: string }): ReactLoopAgent` — config-driven create: an agent on a fresh per-run session id `${id}-session-` with optional session metadata. Used for `cordis.yml`-configured agents. The per-run uuid avoids colliding with the on-disk log a prior run materialized once a durable persistence backend is loaded; each run is a new session (a deliberate demo simplification — a real resume-or-create policy is a TODO). Disposed with the calling fiber. +- `ctx.agentLoop.create(id: string, options?: AgentOptions, meta?: { cwd?: string }): ReactLoopAgent` — synchronous no-setup create, used directly by programs and by `cordis.yml`-configured agents. It creates a fresh per-run session id `${id}-session-` with optional metadata; the uuid avoids colliding with a prior durable log. Each call is a new session (a deliberate demo simplification — a real resume-or-create policy is a TODO). Disposed with the calling fiber. `AgentLoop` also implements the `AgentFactory` seam and registers itself via `ctx.agents.setFactory(this)`, so plugins create/resume agents through `ctx.agents` (the interface): diff --git a/packages/core/agent-loop/src/agent.ts b/packages/core/agent-loop/src/agent.ts index c4c35f34db..3234a47939 100644 --- a/packages/core/agent-loop/src/agent.ts +++ b/packages/core/agent-loop/src/agent.ts @@ -7,10 +7,10 @@ */ import type { Context } from 'cordis' -import { scopeTarget } from '@deepseek-ai/dsh-scope' -import type { Scoped } from '@deepseek-ai/dsh-scope' +import { agentEvents } from '@deepseek-ai/dsh-agent' import type { AgentId, AgentOptions, AgentStatus, SendOptions } from '@deepseek-ai/dsh-agent' import type { Agent } from '@deepseek-ai/dsh-agent' +import { deepFreeze } from '@deepseek-ai/dsh-llm' import type { ContentBlock, MessageSource } from '@deepseek-ai/dsh-llm' import type { Session } from '@deepseek-ai/dsh-session' import { Inbox } from './inbox.ts' @@ -65,6 +65,26 @@ export function prepareReactLoopAgent( } } +/** + * Install the concrete agent's scope context exactly once. Construction and + * scope minting are mutually referential (the scope key is the agent), so the + * factory performs this one post-construction binding before setup receives + * the unpublished agent. The runtime slot is non-writable/non-configurable; + * TypeScript `readonly` alone would still let JavaScript redirect later + * registrations to another context. + * @param agent - the unpublished concrete agent to bind. + * @param ctx - its fully extended agent scope context. + */ +export function bindReactLoopAgentContext(agent: ReactLoopAgent, ctx: Context): void { + if (Object.hasOwn(agent, 'ctx')) throw new Error(`agent "${agent.id}" context is already bound`) + Object.defineProperty(agent, 'ctx', { + value: ctx, + enumerable: true, + writable: false, + configurable: false, + }) +} + /** * The concrete {@link Agent} implementation owned by the agent-loop plugin. * @@ -84,18 +104,7 @@ export class ReactLoopAgent implements Agent { * context are mutually referential (the scope is keyed BY this agent), so * neither can exist strictly before the other. */ - ctx!: Context - - /** - * The dispatch carrier for this agent's own emits (`agent/status`, - * `agent/queued`, `agent/error`): keyed by the agent, base = the agent - * (listener `this` is the agent). Built lazily because it is self-referential. - */ - private get carrier(): Scoped { - return (this.#carrier ??= scopeTarget(this, this)) - } - - #carrier: Scoped | undefined + declare readonly ctx: Context private _status: AgentStatus = 'idle' private currentAbort: AbortController | undefined @@ -143,6 +152,16 @@ export class ReactLoopAgent implements Agent { public readonly options: AgentOptions, public readonly session: Session, ) { + const acceptedOptions = deepFreeze(structuredClone(options)) + // Pin the public ownership/identity bindings in the runtime object. A + // JavaScript caller can otherwise replace TS-readonly parameter properties + // after publication and split the registry, driver, session, and model + // configuration into different worlds. + Object.defineProperties(this, { + id: { value: id, enumerable: true, writable: false, configurable: false }, + options: { value: acceptedOptions, enumerable: true, writable: false, configurable: false }, + session: { value: session, enumerable: true, writable: false, configurable: false }, + }) const { promise, resolve } = Promise.withResolvers() this.disposed = promise this.resolveDisposed = resolve @@ -161,11 +180,7 @@ export class ReactLoopAgent implements Agent { // waiter (docs/defensive-patterns.md "contain callback exceptions" — a lifecycle await must // not hang on one bad listener). if (status !== 'running') this.settleIdleWaiters() - try { - this.loopCtx.emit(this.carrier, 'agent/status', this, status) - } catch (error: unknown) { - this.loopCtx.logger.warn(`agent "${this.id}": agent/status listener threw on ${status}: ${String(error)}`) - } + agentEvents(this.loopCtx, this).emit('agent/status', status) } /** @@ -194,7 +209,7 @@ export class ReactLoopAgent implements Agent { if (this._status === 'disposed') throw new Error(`agent "${this.id}" is disposed`) const source = this.resolveSource(options) this.#inbox.enqueue({ content, source }) - this.loopCtx.emit(this.carrier, 'agent/queued', this, content, { source, steering: false }) + agentEvents(this.loopCtx, this).emit('agent/queued', content, { source, steering: false }) } steer(content: ContentBlock[], options?: SendOptions): void { @@ -203,7 +218,7 @@ export class ReactLoopAgent implements Agent { if (this._status !== 'running') { this.send(content, options); return } const source = this.resolveSource(options) this.#inbox.steer({ content, source }) - this.loopCtx.emit(this.carrier, 'agent/queued', this, content, { source, steering: true }) + agentEvents(this.loopCtx, this).emit('agent/queued', content, { source, steering: true }) } inject(content: ContentBlock[], options?: SendOptions): void { @@ -269,14 +284,10 @@ export class ReactLoopAgent implements Agent { if (turnRecorded) { // Through the store's flush (the carrier owner), never a raw parallel. const flush = this.loopCtx.sessions.flush(this.session).catch((error: unknown) => { - const err = error instanceof Error ? error : new Error(String(error)) - this.loopCtx.logger.warn(`agent "${this.id}": flush after idle injection failed: ${err.message}`) - try { - this.loopCtx.emit(this.carrier, 'agent/error', this, turn, 0, err) - } catch { - // contained: the failure is already logged; a throwing agent/error - // listener must not escape this fire-and-forget catch. - } + const rendered = renderThrown(error) + const err = error instanceof Error ? error : new Error(rendered) + this.loopCtx.logger.warn(`agent "${this.id}": flush after idle injection failed: ${rendered}`) + agentEvents(this.loopCtx, this).emit('agent/error', turn, 0, err) }) this.pendingIdleFlushes.add(flush) // Attach the same retirement callback to both settlement arms so even a @@ -393,11 +404,7 @@ export class ReactLoopAgent implements Agent { // setStatus refuses transitions out of 'disposed', so emit directly — // 'disposed' is part of the agent/status contract. Guarded: a throwing // listener must not break the disposal chain. - try { - this.loopCtx.emit(this.carrier, 'agent/status', this, 'disposed') - } catch { - // listener error during disposal — nothing safe left to do with it - } + agentEvents(this.loopCtx, this).emit('agent/status', 'disposed') } // An unexpected driver rejection must not skip registry/session/scope // cleanup. The normal loop contains turn failures itself; allSettled is the @@ -414,3 +421,12 @@ export class ReactLoopAgent implements Agent { } } } + +/** Render an arbitrary thrown value without allowing coercion to throw again. */ +function renderThrown(value: unknown): string { + try { + return value instanceof Error ? value.message : String(value) + } catch { + return '' + } +} diff --git a/packages/core/agent-loop/src/index.ts b/packages/core/agent-loop/src/index.ts index 1e5c122fc5..902e1e2185 100644 --- a/packages/core/agent-loop/src/index.ts +++ b/packages/core/agent-loop/src/index.ts @@ -13,17 +13,24 @@ import z from 'schemastery' import { createScope } from '@deepseek-ai/dsh-scope' import type { Scope } from '@deepseek-ai/dsh-scope' import { agentEvents } from '@deepseek-ai/dsh-agent' -import type { AgentFactory, AgentHandle, AgentId, AgentOptions, CreateAgentOptions, ResumeAgentOptions, SessionStartSource } from '@deepseek-ai/dsh-agent' +import type { AgentFactory, AgentHandle, AgentId, AgentOptions, AgentRegistrationReservation, CreateAgentOptions, ResumeAgentOptions, SessionStartSource } from '@deepseek-ai/dsh-agent' import type {} from '@deepseek-ai/dsh-llm' import { SessionId, type SessionHeader } from '@deepseek-ai/dsh-session' -import type { Session } from '@deepseek-ai/dsh-session' +import type { Session, SessionRegistrationReservation } from '@deepseek-ai/dsh-session' import type {} from '@deepseek-ai/dsh-system-prompt' import type {} from '@deepseek-ai/dsh-tools' import type { SessionPersistence } from '@deepseek-ai/dsh-session-persistence' -import { prepareReactLoopAgent, ReactLoopAgent } from './agent.ts' +import { bindReactLoopAgentContext, prepareReactLoopAgent, ReactLoopAgent } from './agent.ts' export { ReactLoopAgent } from './agent.ts' +/** Both unpublished identity capabilities held by one factory transaction. */ +interface RegistrationReservations { + agent: AgentRegistrationReservation + session: SessionRegistrationReservation + release(): void +} + declare module 'cordis' { interface Context { agentLoop: AgentLoop @@ -71,10 +78,6 @@ export interface Config { export class AgentLoop extends Service implements AgentFactory { static inject = ['agents', 'sessions', 'llm', 'tools', 'systemPrompt'] - /** IDs held by unpublished async creation transactions. */ - private pendingAgentIds = new Set() - private pendingSessionIds = new Set() - // The schema validates plain strings (cordis.yml config values are untyped at // runtime); the {@link Config} TYPE declares the branded `id`/`resumeSessionId` // because the config format is the boundary where an id enters. The brand is a @@ -153,14 +156,19 @@ export class AgentLoop extends Service implements AgentFactory { * @returns the running agent, owned by the calling fiber (no handle). */ create(id: AgentId, options: AgentOptions = {}, meta: Pick = {}): ReactLoopAgent { - this.assertAgentIdFree(id) + const sessionId = SessionId(`${id}-session-${randomUUID()}`) + const reservations = this.reserve(id, sessionId) // Config/programmatic path: prepare the session and let start() fold its // lifecycle into the agent's composite effect (so a fiber unload tears the // session + agent down as one ordered chain, capturing the loop's closing // flush). The whole effect is owned by THIS fiber; no AgentHandle is needed. - const session = this.ctx.sessions.prepare(SessionId(`${id}-session-${randomUUID()}`), { meta }) - const { agent } = this.start(id, options, session, 'startup') - return agent + try { + const session = reservations.session.prepare({ meta }) + const { agent } = this.start(id, options, session, 'startup', reservations) + return agent + } finally { + reservations.release() + } } /** @@ -188,16 +196,16 @@ export class AgentLoop extends Service implements AgentFactory { const agentOptions = structuredClone(options.agentOptions ?? {}) const seed = options.seed const meta = options.meta - const release = this.reserve(agentId, sessionId) + const reservations = this.reserve(agentId, sessionId) try { - const session = this.ctx.sessions.prepare(sessionId, { + const session = reservations.session.prepare({ ...seed !== undefined ? { seed } : {}, ...meta !== undefined ? { meta } : {}, }) // A seeded (forked) create is still a fresh start, NOT a resume. - return await this.startOwned(agentId, agentOptions, session, 'startup', setup) + return await this.startOwned(agentId, agentOptions, session, 'startup', reservations, setup) } finally { - release() + reservations.release() } } @@ -273,7 +281,7 @@ export class AgentLoop extends Service implements AgentFactory { return transactionSettled }, `agentLoop.resumeLoad(${agentId})`) try { - const release = this.reserve(agentId, sessionId) + const reservations = this.reserve(agentId, sessionId) try { const loadTask = persistence.load(sessionId) const { meta, events } = await Promise.race([ @@ -292,7 +300,7 @@ export class AgentLoop extends Service implements AgentFactory { // An out-of-band direct registry/session insertion can still race this // service's reservation, so the public enter primitives re-check exact // liveness at publication. - const session = this.ctx.sessions.prepare(sessionId, { + const session = reservations.session.prepare({ seed: events, meta: { createdAt, @@ -305,12 +313,12 @@ export class AgentLoop extends Service implements AgentFactory { // effect before it reaches its first setup await. Only then disarm the // load sentinel: ownership passes directly from one effect to the other // with no disposal gap. - const starting = this.startOwned(agentId, agentOptions, session, 'resume', setup) + const starting = this.startOwned(agentId, agentOptions, session, 'resume', reservations, setup) observingOwner = false await disposeLoadSentinel() return await starting } finally { - release() + reservations.release() } } finally { try { @@ -327,29 +335,24 @@ export class AgentLoop extends Service implements AgentFactory { } } - /** - * Reject a duplicate agent id BEFORE the session is entered into the store, so - * a failed factory call never leaves an orphaned live session (and lazy - * persistence state) behind. `register()` enforces the same uniqueness, but - * only after the session has already entered the store. - */ - private assertAgentIdFree(id: AgentId): void { - if (this.ctx.agents.get(id) !== undefined || this.pendingAgentIds.has(id)) { - throw new Error(`agent "${id}" is already registered`) - } - } - - /** Reserve both public identities for one unpublished async transaction. */ - private reserve(agentId: AgentId, sessionId: SessionId): () => void { - this.assertAgentIdFree(agentId) - if (this.ctx.sessions.get(sessionId) !== undefined || this.pendingSessionIds.has(sessionId)) { - throw new Error(`session "${sessionId}" already exists`) - } - this.pendingAgentIds.add(agentId) - this.pendingSessionIds.add(sessionId) - return () => { - this.pendingAgentIds.delete(agentId) - this.pendingSessionIds.delete(sessionId) + /** Reserve both public identities in their owning registries. */ + private reserve(agentId: AgentId, sessionId: SessionId): RegistrationReservations { + const agent = this.ctx.agents.reserve(agentId) + try { + const session = this.ctx.sessions.reserve(sessionId) + return { + agent, + session, + release() { + // Both owner capabilities are independently idempotent, so the + // composite needs no second state machine of its own. + session.release() + agent.release() + }, + } + } catch (error: unknown) { + agent.release() + throw error } } @@ -361,7 +364,12 @@ export class AgentLoop extends Service implements AgentFactory { * `active`, unwinds the scope, and wins the race without any late Cordis * effect collection. */ - private prepareLifecycle(id: AgentId, options: AgentOptions, session: Session): { + private prepareLifecycle( + id: AgentId, + options: AgentOptions, + session: Session, + reservations: RegistrationReservations, + ): { agent: ReactLoopAgent active: () => boolean deactivated: Promise @@ -378,7 +386,7 @@ export class AgentLoop extends Service implements AgentFactory { const driver = prepareReactLoopAgent(this.ctx, id, options, session) const { agent } = driver const scope: Scope = createScope(this.ctx, agent) - agent.ctx = scope.ctx.extend({ agent }) + bindReactLoopAgentContext(agent, scope.ctx.extend({ agent })) let active = true let detachSession: (() => void) | undefined @@ -422,19 +430,15 @@ export class AgentLoop extends Service implements AgentFactory { const publish = (source: SessionStartSource): void => { // Publication is one synchronous, rollback-covered sequence. Setup has // already completed, so its scoped listeners observe both announcements. - detachSession = agent.ctx.sessions.enter(session) - detachAgent = this.ctx.agents.enter(agent) + detachSession = agent.ctx.sessions.enter(session, reservations.session) + detachAgent = this.ctx.agents.enter(agent, reservations.agent) this.ctx.sessions.announce(session) this.ctx.agents.announce(agent) // Setup is over and both entries are live. Open the driving surface just // before session-start so its listeners retain their supported ability to // inject/queue, while setup itself can never drive an unpublished agent. driver.enableDrive() - try { - agentEvents(this.ctx, agent).emit('agent/session-start', source) - } catch (error: unknown) { - this.ctx.logger.warn(`agent "${id}": agent/session-start listener threw: ${String(error)}`) - } + agentEvents(this.ctx, agent).emit('agent/session-start', source) stop = driver.startDriver() } @@ -453,9 +457,13 @@ export class AgentLoop extends Service implements AgentFactory { /** Publish a no-setup config agent synchronously. */ private start( - id: AgentId, options: AgentOptions, session: Session, source: SessionStartSource, + id: AgentId, + options: AgentOptions, + session: Session, + source: SessionStartSource, + reservations: RegistrationReservations, ): { agent: ReactLoopAgent; disposeAgent: () => Promise } { - const lifecycle = this.prepareLifecycle(id, options, session) + const lifecycle = this.prepareLifecycle(id, options, session, reservations) try { lifecycle.publish(source) return { agent: lifecycle.agent, disposeAgent: lifecycle.disposeAgent } @@ -485,9 +493,10 @@ export class AgentLoop extends Service implements AgentFactory { */ private async startOwned( id: AgentId, options: AgentOptions, session: Session, source: SessionStartSource, + reservations: RegistrationReservations, setup?: (agentCtx: Context) => Promise | void, ): Promise { - const lifecycle = this.prepareLifecycle(id, options, session) + const lifecycle = this.prepareLifecycle(id, options, session, reservations) try { // The owner-disposal branch makes a never-settling setup unable to hold // the transaction or its ID reservations forever. Promise.race installs diff --git a/packages/core/agent-loop/tests/agent.spec.ts b/packages/core/agent-loop/tests/agent.spec.ts index ab3494d991..b2a4fe30d5 100644 --- a/packages/core/agent-loop/tests/agent.spec.ts +++ b/packages/core/agent-loop/tests/agent.spec.ts @@ -7,7 +7,7 @@ import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry from '@deepseek-ai/dsh-tools' import AgentRegistry from '@deepseek-ai/dsh-agent' import AgentLoop, { ReactLoopAgent } from '@deepseek-ai/dsh-agent-loop' -import { prepareReactLoopAgent } from '../src/agent.ts' +import { bindReactLoopAgentContext, prepareReactLoopAgent } from '../src/agent.ts' import { MockAdapter, textResponse } from './mock-adapter.ts' async function harness(adapter: MockAdapter) { @@ -49,6 +49,34 @@ function send(agent: ReactLoopAgent, text: string) { } describe('ReactLoopAgent', () => { + it('owns immutable runtime bindings for id, options, session, and scoped context', async () => { + const ctx = await harness(new MockAdapter([textResponse('unused')])) + const options = { model: 'mock' } + const agent = ctx.agentLoop.create(AgentId('owned-bindings'), options) + const acceptedSession = agent.session + const acceptedContext = agent.ctx + + options.model = 'caller-mutated' + expect(agent.options).toEqual({ model: 'mock' }) + expect(Object.isFrozen(agent.options)).toBe(true) + expect(Reflect.set(agent, 'id', AgentId('redirected'))).toBe(false) + expect(Reflect.set(agent, 'options', { model: 'other' })).toBe(false) + expect(Reflect.set(agent, 'session', ctx.sessions.create(SessionId('other')))).toBe(false) + expect(Reflect.set(agent, 'ctx', new Context())).toBe(false) + expect(agent.id).toBe('owned-bindings') + expect(agent.session).toBe(acceptedSession) + expect(agent.ctx).toBe(acceptedContext) + expect(() => { bindReactLoopAgentContext(agent, new Context()) }).toThrow(/context is already bound/) + for (const name of ['id', 'options', 'session', 'ctx']) { + expect(Object.getOwnPropertyDescriptor(agent, name)).toMatchObject({ + configurable: false, + writable: false, + }) + } + + await ctx.fiber.dispose() + }) + it('send() throws after disposal', async () => { const adapter = new MockAdapter(['hang']) const ctx = await harness(adapter) @@ -197,6 +225,23 @@ describe('ReactLoopAgent', () => { warn.mockRestore() }) + it('idle inject() safely renders a hostile non-Error flush failure', async () => { + const ctx = await harness(new MockAdapter([textResponse('ok')])) + const hostile = { [Symbol.toPrimitive]() { throw new Error('no coercion') } } + ctx.on('session/flush', () => { throw hostile }) + const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => undefined) + const agent = ctx.agentLoop.create(AgentId('hostile-flush'), { model: 'mock' }) + const errors: string[] = [] + ctx.on('agent/error', (_a, _turn, _step, error) => void errors.push(error.message)) + + agent.inject([{ type: 'text', text: 'notice' }]) + await new Promise(r => setTimeout(r, 20)) + + expect(errors).toEqual(['']) + expect(warn).toHaveBeenCalledWith(expect.stringContaining('')) + warn.mockRestore() + }) + it('idle inject() with a non-serializable source opens no turn (nothing to close)', async () => { const adapter = new MockAdapter([textResponse('ok')]) const ctx = await harness(adapter) @@ -416,7 +461,7 @@ describe('ReactLoopAgent', () => { expect(adapter.requests).toHaveLength(1) expect(agent.status).toBe('idle') - expect(warn).toHaveBeenCalledWith(expect.stringContaining('agent/status listener threw on running')) + expect(warn).toHaveBeenCalledWith(expect.stringContaining('agent event "agent/status" listener threw')) warn.mockRestore() }) @@ -434,7 +479,7 @@ describe('ReactLoopAgent', () => { expect(adapter.requests).toHaveLength(1) expect(agent.status).toBe('idle') - expect(warn).toHaveBeenCalledWith(expect.stringContaining('agent/status listener threw on idle')) + expect(warn).toHaveBeenCalledWith(expect.stringContaining('agent event "agent/status" listener threw')) warn.mockRestore() }) }) diff --git a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts index 6d0bb3107b..5ed11d396a 100644 --- a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts +++ b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts @@ -197,6 +197,35 @@ describe('agent scope lifecycle', () => { await handle.dispose() }) + it('makes setup-time publication structurally impossible through public stores', async () => { + const ctx = await harness() + const lifecycle: string[] = [] + ctx.on('session/created', () => void lifecycle.push('session')) + ctx.on('agent/created', () => void lifecycle.push('agent')) + + const handle = await ctx.agents.create({ + agentId: AgentId('guarded-publication'), + sessionId: SessionId('guarded-publication-s'), + agentOptions: { model: 'mock' }, + setup: (agentCtx) => { + const agent = agentCtx.agent! + expect(() => agentCtx.agents.enter(agent)).toThrow(/reserved for unpublished creation/) + expect(() => agentCtx.agents.register(agent)).toThrow(/reserved for unpublished creation/) + expect(() => agentCtx.sessions.enter(agent.session)).toThrow(/reserved for unpublished creation/) + expect(() => agentCtx.sessions.prepare(agent.session.id)).toThrow(/reserved for unpublished creation/) + expect(() => agentCtx.sessions.create(agent.session.id)).toThrow(/reserved for unpublished creation/) + expect(lifecycle).toEqual([]) + expect(ctx.agents.get(agent.id)).toBeUndefined() + expect(ctx.sessions.get(agent.session.id)).toBeUndefined() + }, + }) + + expect(lifecycle).toEqual(['session', 'agent']) + expect(ctx.agents.get(handle.agent.id)).toBe(handle.agent) + expect(ctx.sessions.get(handle.agent.session.id)).toBe(handle.agent.session) + await handle.dispose() + }) + it('structurally rejects every driving verb during setup', async () => { const ctx = await harness() const handle = await ctx.agents.create({ @@ -357,6 +386,33 @@ describe('agent scope lifecycle', () => { await retry.dispose() }) + it('pairs session and agent announcements when agent creation aborts publication', async () => { + const ctx = await harness() + const lifecycle: string[] = [] + ctx.on('session/created', (session) => { lifecycle.push(`session-created:${session.id}`) }) + ctx.on('session/disposed', (session) => { lifecycle.push(`session-disposed:${session.id}`) }) + ctx.on('agent/created', (agent) => { + lifecycle.push(`agent-created:${agent.id}`) + throw new Error('agent observer failed') + }) + ctx.on('agent/disposed', (agent) => { lifecycle.push(`agent-disposed:${agent.id}`) }) + + await expect(ctx.agents.create({ + agentId: AgentId('partial-agent'), + sessionId: SessionId('partial-session'), + agentOptions: { model: 'mock' }, + })).rejects.toThrow('agent observer failed') + + expect(lifecycle).toEqual([ + 'session-created:partial-session', + 'agent-created:partial-agent', + 'agent-disposed:partial-agent', + 'session-disposed:partial-session', + ]) + expect(ctx.agents.get(AgentId('partial-agent'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('partial-session'))).toBeUndefined() + }) + it('the synchronous config helper rolls back when publication throws', async () => { const ctx = await harness() const sessionsBefore = ctx.sessions.list().length diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index 23fa073ea1..1b1e65a289 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -8,10 +8,10 @@ Tracks live agents so UI, hook, and orchestrator plugins can find them without i ### Public API -The scoped-registration surface: `Agent.ctx` is the agent's scope context (`dsh-scope`, key = the agent) — register tools/sections/variables/listeners through it for that agent alone, all unwound on disposal. `agentEvents(ctx, agent)` is the fused dispatcher every agent-subject event goes through (carrier + injected subject in one move); `assembleContextFor(agent)` builds the per-agent assembly context (`agent` + `scope` together). `CreateAgentOptions.setup(agentCtx)` and `ResumeAgentOptions.setup(agentCtx)` compose a fresh or resumed agent's scoped world while the factory keeps the agent and session unpublished; creation awaits setup and a same-turn owner-unload checkpoint before either creation notification or the first assembly. Setup composes, it never drives: the concrete loop rejects driving verbs until the `agent/session-start` boundary. +The scoped-registration surface: `Agent.ctx` is the agent's scope context (`dsh-scope`, key = the agent) — register tools/sections/variables/listeners through it for that agent alone, all unwound on disposal. `agentEvents(ctx, agent)` is the fused dispatcher every agent-subject event goes through (carrier + injected subject in one move); its notification mode invokes every listener and contains both synchronous throws and returned-promise rejections. `assembleContextFor(agent)` builds the per-agent assembly context (`agent` + `scope` together). `CreateAgentOptions.setup(agentCtx)` and `ResumeAgentOptions.setup(agentCtx)` compose a fresh or resumed agent's scoped world while registry/store-owned reservation capabilities keep both identities unpublished; creation awaits setup and a same-turn owner-unload checkpoint before either creation notification or the first assembly. Setup composes, it never drives or publishes: driving verbs and ordinary agent/session insertion both reject until the owning publication boundary. - `ctx.agents.register(agent: Agent): () => Promise | void` — record an **already-constructed** agent. Disposed with the calling fiber. -- Advanced ordered lifecycle: `enter(agent): () => void` inserts without announcing, and `announce(agent)` emits `agent/created` only for that exact live entry. The async factory uses this split after setup; ordinary plugins use `register()`. +- Advanced ordered lifecycle: `reserve(id)` returns an opaque unpublished-identity capability owned by the calling fiber (owner unload releases an abandoned reservation); `enter(agent, reservation?): () => void` inserts under one captured, runtime-pinned id without announcing; and `announce(agent)` emits `agent/created` exactly once for that exact live entry, rejecting repeat or reentrant announcement. While reserved, bare `register`/`enter` calls for the id reject, including from setup. The factory uses this split; ordinary plugins use `register()`. - `ctx.agents.get(id: AgentId): Agent | undefined` - `ctx.agents.list(): Agent[]` @@ -20,7 +20,7 @@ The scoped-registration surface: `Agent.ctx` is the agent's scope context (`dsh- Agent *creation* is provided by the plugin implementing `AgentFactory` (`dsh-agent-loop`), registered via `setFactory`. This keeps creation on the `dsh-agent` interface so consumers (UI, the ACP bridge) program against `ctx.agents` without depending on the concrete loop package. - `ctx.agents.setFactory(factory: AgentFactory): () => Promise | void` — register the creation factory (the loop calls this on construction). Throws on a second factory; the slot clears on dispose. -- `ctx.agents.create(options: CreateAgentOptions): Promise` — snapshot caller-owned IDs/options/metadata and hand the one-read raw seed synchronously to the session boundary for one-pass lossless-JSON materialization, construct and await optional setup while unpublished, insert and announce both session and agent, open the `agent/session-start` driving boundary, then start a new loop on the caller-supplied `sessionId`. Agent/session IDs are reserved across setup; seed rejection, setup rejection, or owner unload publishes nothing. Publication is rollback-covered: if a creation listener throws, entries and scope unwind but effects of already-delivered notifications remain observable; an agent whose announcement began emits `agent/disposed` during that rollback. Rejects if no factory is registered. +- `ctx.agents.create(options: CreateAgentOptions): Promise` — snapshot caller-owned IDs/options/metadata and hand the one-read raw seed synchronously to the session boundary for one-pass lossless-JSON materialization, construct and await optional setup while unpublished, insert and announce both session and agent, open the `agent/session-start` driving boundary, then start a new loop on the caller-supplied `sessionId`. Registry/store reservation capabilities block every competing public insertion across setup; seed rejection, setup rejection, or owner unload publishes nothing. Publication is rollback-covered: if a creation listener throws, entries and scope unwind but effects of already-delivered notifications remain observable; any creation announcement that began is paired by `agent/disposed` or `session/disposed`. Rejects if no factory is registered. - `ctx.agents.resume(options: ResumeAgentOptions): Promise` — snapshot caller-owned IDs/options, load a persisted session ([session persistence](../../../docs/rfc/implemented/architecture/2026-06-14-session-persistence.md)), mint a fresh agent scope, await optional setup while unpublished, then follow the same insert → announce → session-start → loop-start boundary. The IDs are reserved across persistence load and setup; load/setup rejection or owner unload publishes nothing. Rejects if no factory is registered or session persistence is unconfigured. `AgentHandle = { agent: Agent; dispose(): Promise }`. The disposer is a **capability** — only the holder can tear this agent down. `dispose()` stops the loop, `await`s its exit plus every outstanding idle-injection flush (quiescence — NOT just the `disposed` status flip), unregisters the agent, removes its session from the store, and finally unwinds its scoped world. This order captures every agent-started `session/flush` before the session is detached and keeps scoped listeners alive through those checkpoints. `ctx.agents.get(id)` still returns a bare `Agent` — the handle is only for the OWNER that created it. The ACP bridge and in-process subagent backends are production consumers; config-created agents are owned by the loop fiber and never need a handle. diff --git a/packages/core/agent/src/dispatch.ts b/packages/core/agent/src/dispatch.ts index b02dfeab57..881faa675f 100644 --- a/packages/core/agent/src/dispatch.ts +++ b/packages/core/agent/src/dispatch.ts @@ -45,7 +45,10 @@ type Tail = Params extends [Agent, ...in */ export interface AgentEventDispatch { /** - * Fire-and-forget notification (Cordis `emit`) in the agent's scope. + * Fire-and-forget notification in the agent's scope. Every listener is + * invoked; synchronous throws and returned-promise rejections are logged and + * contained per listener, so a notification cannot veto lifecycle progress + * or starve a later observer. * @param name - the agent-subject event to emit. * @param rest - the event's arguments after the injected agent. */ @@ -96,9 +99,22 @@ export function agentEvents(ctx: Context, agent: Agent): AgentEventDispatch { // tuple — hence one contained, shape-preserving cast per method. return { emit(name, ...rest) { - // eslint-disable-next-line @typescript-eslint/unbound-method -- the events mixin accessor returns a pre-bound function - const emit = ctx.emit as (thisArg: Scoped, name: string, ...args: unknown[]) => void - emit(carrier, name, agent, ...rest) + // Cordis emit invokes callbacks through Array.map: one synchronous throw + // starves later listeners, and returned promises are discarded. Agent + // notifications are non-vetoing, so resolve the same filtered callback + // set ourselves and contain both failure modes independently. + const args: unknown[] = [carrier, name, agent, ...rest] + const callbacks = ctx.events.dispatch('emit', args) + for (const callback of callbacks) { + try { + const returned: unknown = callback(...args) + void Promise.resolve(returned).catch((error: unknown) => { + ctx.logger.warn(`agent event "${name}" listener rejected: ${renderThrown(error)}`) + }) + } catch (error: unknown) { + ctx.logger.warn(`agent event "${name}" listener threw: ${renderThrown(error)}`) + } + } }, async serial(name, ...rest) { // eslint-disable-next-line @typescript-eslint/unbound-method -- the events mixin accessor returns a pre-bound function @@ -129,6 +145,15 @@ export function agentEvents(ctx: Context, agent: Agent): AgentEventDispatch { } } +/** Render an arbitrary thrown value without allowing coercion to throw again. */ +function renderThrown(value: unknown): string { + try { + return value instanceof Error ? `${value.name}: ${value.message}` : String(value) + } catch { + return '' + } +} + /** * The assembly context for one agent's prompt: the typed `agent` DX field and * the `scope` layer selector, set together (setting `agent` without `scope` diff --git a/packages/core/agent/src/index.ts b/packages/core/agent/src/index.ts index 959ca4784c..be7bb02c67 100644 --- a/packages/core/agent/src/index.ts +++ b/packages/core/agent/src/index.ts @@ -9,6 +9,7 @@ import { Context, Service } from 'cordis' import { scopeTarget } from '@deepseek-ai/dsh-scope' import type { SessionEvent, SessionId } from '@deepseek-ai/dsh-session' import type { Agent, AgentId, AgentOptions } from './types.ts' +import { agentEvents } from './dispatch.ts' export * from './types.ts' export { agentEvents, assembleContextFor } from './dispatch.ts' @@ -141,9 +142,9 @@ export interface AgentFactory { * creation notifications in order, unlocks driving at * `agent/session-start`, and only then starts the loop. The sequence is * rollback-covered, but notifications delivered before a later listener - * failure remain observable; if agent announcement began, rollback emits - * `agent/disposed`, while the session entry is removed without a separate - * disposal event. The owner disposes the resolved handle to stop/drain, + * failure remain observable; every agent or session creation announcement + * that began is paired by `agent/disposed` or `session/disposed` during + * rollback. The owner disposes the resolved handle to stop/drain, * unregister, remove the session, and unwind the scope. * @param options - agent/session identity, configuration, and optional setup. * @returns the owned handle after setup, both announcements, and loop start complete. @@ -164,6 +165,33 @@ export interface AgentFactory { /** Thrown when create/resume is called before an agent factory is registered. */ const NO_FACTORY_MESSAGE = 'no agent factory registered (load an agent-loop plugin)' +/** Render an arbitrary thrown value without allowing coercion to throw again. */ +function renderThrown(value: unknown): string { + try { + return value instanceof Error ? `${value.name}: ${value.message}` : String(value) + } catch { + return '' + } +} + +/** + * Unforgeable ownership handle for one unpublished agent id. The factory holds + * this object across asynchronous setup; while it is live, ordinary public + * registration of that id fails, so setup cannot publish the factory's agent + * (or a replacement with the same id) ahead of the transaction. Callers obtain + * handles only from {@link AgentRegistry.reserve}. + */ +export interface AgentRegistrationReservation { + /** The reserved registry id. */ + readonly id: AgentId + /** + * Release the unpublished reservation; idempotent. The registry also + * releases it automatically when the fiber that called `reserve` disposes. + * @returns nothing. + */ + release(): void +} + /** * Agent registry (`ctx.agents`): tracks live agents so UI, hook, and * orchestrator plugins can find them without depending on the concrete loop @@ -173,6 +201,10 @@ const NO_FACTORY_MESSAGE = 'no agent factory registered (load an agent-loop plug */ export class AgentRegistry extends Service { private store = new Map() + /** The one accepted registry key for each live agent; never reread caller state. */ + private acceptedIds = new WeakMap() + /** Unpublished identities held across factory setup/load transactions. */ + private reservations = new Map() /** Entries whose `agent/created` announcement phase began. */ private announced = new WeakSet() private factory: AgentFactory | undefined @@ -188,6 +220,49 @@ export class AgentRegistry extends Service { ctx.accessor('agent', { get: () => undefined }) } + /** + * Reserve an unpublished agent id. Registration through {@link register} or + * bare {@link enter} fails until the returned capability is released; the + * owning factory passes the exact capability back to `enter` at publication. + * This makes “setup cannot publish” structural rather than a cooperative + * convention, including attempts to register a different object under the + * reserved id. The reservation belongs to the calling fiber and is released + * automatically if that owner unloads before the transaction settles. + * @param id - the id the factory transaction will publish. + * @returns the opaque reservation capability. + * @throws if the id is malformed, live, or already reserved. + */ + reserve(id: AgentId): AgentRegistrationReservation { + if (typeof id !== 'string') throw new TypeError('agent id must be a string') + if (this.store.has(id) || this.reservations.has(id)) { + throw new Error(`agent "${id}" is already registered or reserved`) + } + let active = true + const rawRelease = (): void => { + if (!active) return + active = false + this.reservations.delete(id) + } + let disposeEffect!: () => Promise | void + const reservation: AgentRegistrationReservation = Object.freeze({ + id, + release: () => { + rawRelease() + // Remove the now-inert ownership effect on manual transaction settle; + // its cleanup is the exact idempotent raw release above. + void disposeEffect() + }, + }) + this.reservations.set(id, reservation) + try { + disposeEffect = this.ctx.effect(() => rawRelease, `agents.reserve(${id})`) + } catch (error: unknown) { + rawRelease() + throw error + } + return reservation + } + /** * Register the agent-creation factory (the loop calls this on construction, * effect-scoped). Throws if a factory is already registered. Returns the @@ -269,43 +344,87 @@ export class AgentRegistry extends Service { * returned detach closure into its pre-installed composite teardown before * calling {@link announce}. Ordinary callers use {@link register}. * @param agent - the prepared, unpublished agent. + * @param reservation - the exact unpublished-id capability, when a factory + * reserved this id across setup. * @returns an idempotent closure that removes this exact entry and emits * `agent/disposed` with listener failures contained. */ - enter(agent: Agent): () => void { - if (this.store.has(agent.id)) { - throw new Error(`agent "${agent.id}" is already registered`) + enter(agent: Agent, reservation?: AgentRegistrationReservation): () => void { + const id = agent.id + if (typeof id !== 'string') throw new TypeError('agent id must be a string') + const held = this.reservations.get(id) + if (reservation === undefined) { + if (held !== undefined) throw new Error(`agent "${id}" is reserved for unpublished creation`) + } else if (reservation.id !== id || held !== reservation) { + throw new Error(`agent "${id}" registration reservation is not active for this id`) } - this.store.set(agent.id, agent) + if (this.acceptedIds.has(agent)) { + throw new Error(`agent "${id}" is already registered`) + } + if (this.store.has(id)) { + throw new Error(`agent "${id}" is already registered`) + } + try { + // Registration accepts ownership of the public identity contract. Pin an + // own data slot from the one captured value so a custom JavaScript Agent + // with a getter or writable field cannot later present a different id to + // event listeners while the registry still owns the accepted key. + Object.defineProperty(agent, 'id', { + value: id, + enumerable: true, + writable: false, + configurable: false, + }) + } catch { + // Only the engine's property-definition failure is swallowed; the stable + // public error below is the registration contract exposed to callers. + throw new TypeError('agent id must be installable as a stable own property') + } + this.store.set(id, agent) + this.acceptedIds.set(agent, id) let entered = true return () => { if (!entered) return entered = false - this.store.delete(agent.id) + this.store.delete(id) + this.acceptedIds.delete(agent) // An insertion rolled back before announce was never externally created, // so emitting disposed would invent an impossible lifecycle edge. Marking // happens before the created emit: if a later created listener throws, // earlier listeners may already have observed it and must see disposal. if (!this.announced.delete(agent)) return - try { - this.ctx.emit(scopeTarget(agent, agent), 'agent/disposed', agent) - } catch (error: unknown) { - this.ctx.logger.warn(`agent "${agent.id}": agent/disposed listener threw: ${String(error)}`) - } + agentEvents(this.ctx, agent).emit('agent/disposed') } } /** * Announce an agent previously inserted with {@link enter}. * @param agent - the live inserted agent to announce. - * @throws if `agent` is not the exact live registry entry for its id. + * @throws if `agent` is not the exact live registry entry for its id, or its + * creation announcement already began (including a reentrant call from a + * creation listener). */ announce(agent: Agent): void { - if (this.store.get(agent.id) !== agent) { - throw new Error(`agent "${agent.id}" is not live in this registry`) + const id = this.acceptedIds.get(agent) + if (id === undefined || this.store.get(id) !== agent) { + throw new Error(`agent "${id ?? ''}" is not live in this registry`) } + if (this.announced.has(agent)) { + throw new Error(`agent "${id}" was already announced`) + } + // Mark before dispatch so a listener cannot recursively create a second + // lifecycle edge; detach still pairs a partially delivered first edge. this.announced.add(agent) - this.ctx.emit(scopeTarget(agent, agent), 'agent/created', agent) + const args: unknown[] = [scopeTarget(agent, agent), 'agent/created', agent] + for (const callback of this.ctx.events.dispatch('emit', args)) { + // A synchronous creation failure vetoes publication and rolls back. + // Returned-promise rejection happens after this synchronous boundary, so + // observe and report it instead of leaking an unhandled rejection. + const returned: unknown = callback(...args) + void Promise.resolve(returned).catch((error: unknown) => { + this.ctx.logger.warn(`agent "${id}": agent/created listener rejected: ${renderThrown(error)}`) + }) + } } /** diff --git a/packages/core/agent/src/types.ts b/packages/core/agent/src/types.ts index 4196eb43d6..b6a32fa050 100644 --- a/packages/core/agent/src/types.ts +++ b/packages/core/agent/src/types.ts @@ -288,7 +288,10 @@ declare module 'cordis' { * {@link AgentRegistry}. Its session is already live in the session store, * but concrete factories may keep driving verbs locked until the subsequent * `agent/session-start` boundary; that event is the first supported place - * to inject or queue work during startup. + * to inject or queue work during startup. A synchronous listener throw + * vetoes publication and rollback emits the matching disposal edges; + * returned-promise rejection is observed and logged but cannot + * retroactively veto this synchronous boundary. * @param agent - the newly registered agent with its live session and completed setup. * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered * through `agent.ctx` fires only for that agent's dispatches; a listener on a diff --git a/packages/core/agent/tests/agent.spec.ts b/packages/core/agent/tests/agent.spec.ts index 4e89dc0e84..87a0e51e9d 100644 --- a/packages/core/agent/tests/agent.spec.ts +++ b/packages/core/agent/tests/agent.spec.ts @@ -1,7 +1,7 @@ import { describe, expect, it } from 'vitest' import { Context } from 'cordis' import { Session, SessionId } from '@deepseek-ai/dsh-session' -import AgentRegistry, { Agent, AgentId } from '@deepseek-ai/dsh-agent' +import AgentRegistry, { Agent, AgentId, agentEvents } from '@deepseek-ai/dsh-agent' function stubAgent(rawId: string): Agent { const id = AgentId(rawId) @@ -78,6 +78,32 @@ describe('AgentRegistry', () => { expect(ctx.agents.get(AgentId('main'))).toBeUndefined() }) + it('observes async agent/created rejection without rolling back or starving peers', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + const hostile = { [Symbol.toPrimitive]() { throw new Error('cannot stringify') } } + const heard: string[] = [] + ctx.on('agent/created', () => Promise.reject(new Error('ordinary async failure')) as never) + // eslint-disable-next-line @typescript-eslint/prefer-promise-reject-errors -- hostile thrown values are the boundary under test + ctx.on('agent/created', () => Promise.reject(hostile) as never) + ctx.on('agent/created', (agent) => { heard.push(agent.id) }) + + const agent = stubAgent('async-created') + const dispose = ctx.agents.register(agent) + await Promise.resolve() + await Promise.resolve() + + expect(ctx.agents.get(agent.id)).toBe(agent) + expect(heard).toEqual(['async-created']) + expect(warnings).toEqual([ + 'agent "async-created": agent/created listener rejected: Error: ordinary async failure', + 'agent "async-created": agent/created listener rejected: ', + ]) + await dispose() + }) + it('splits insertion from announcement and makes the detach exact/idempotent', async () => { const ctx = new Context() await ctx.plugin(AgentRegistry) @@ -107,6 +133,149 @@ describe('AgentRegistry', () => { // no disposed-without-created notification. expect(disposed).toEqual([first]) }) + + it('captures and pins one runtime id before insertion, announcement, and detach', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + const existing = stubAgent('occupied') + const disposeExisting = ctx.agents.register(existing) + const candidate = stubAgent('placeholder') + let reads = 0 + Object.defineProperty(candidate, 'id', { + configurable: true, + get() { + reads += 1 + return reads === 1 ? AgentId('accepted') : AgentId('occupied') + }, + }) + + const detach = ctx.agents.enter(candidate) + expect(reads).toBe(1) + expect(candidate.id).toBe('accepted') + expect(reads).toBe(1) + expect(Object.getOwnPropertyDescriptor(candidate, 'id')).toMatchObject({ + configurable: false, + writable: false, + value: 'accepted', + }) + expect(ctx.agents.get(AgentId('accepted'))).toBe(candidate) + expect(ctx.agents.get(AgentId('occupied'))).toBe(existing) + expect(() => ctx.agents.enter(candidate)).toThrow(/already registered/) + + ctx.agents.announce(candidate) + detach() + expect(ctx.agents.get(AgentId('accepted'))).toBeUndefined() + expect(ctx.agents.get(AgentId('occupied'))).toBe(existing) + await disposeExisting() + + expect(() => ctx.agents.enter({ ...stubAgent('bad'), id: 42 } as unknown as Agent)) + .toThrow(/id must be a string/) + const pinnedAccessor = stubAgent('pinned') + Object.defineProperty(pinnedAccessor, 'id', { + configurable: false, + get: () => AgentId('pinned'), + }) + expect(() => ctx.agents.enter(pinnedAccessor)).toThrow(/installable as a stable own property/) + }) + + it('uses an opaque one-id reservation to gate unpublished factory insertion', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + const held = ctx.agents.reserve(AgentId('held')) + + expect(() => ctx.agents.reserve(AgentId('held'))).toThrow(/already registered or reserved/) + expect(() => ctx.agents.enter(stubAgent('held'))).toThrow(/reserved for unpublished creation/) + const other = ctx.agents.reserve(AgentId('other')) + expect(() => ctx.agents.enter(stubAgent('held'), other)).toThrow(/not active for this id/) + + const agent = stubAgent('held') + const detach = ctx.agents.enter(agent, held) + ctx.agents.announce(agent) + held.release() + held.release() + expect(ctx.agents.get(AgentId('held'))).toBe(agent) + expect(() => ctx.agents.reserve(AgentId('held'))).toThrow(/already registered or reserved/) + detach() + other.release() + + const expired = ctx.agents.reserve(AgentId('expired')) + expired.release() + expect(() => ctx.agents.enter(stubAgent('expired'), expired)).toThrow(/not active for this id/) + expect(() => ctx.agents.reserve(42 as unknown as AgentId)).toThrow(/id must be a string/) + }) + + it('owns reservations by the calling fiber and rolls back failed ownership registration', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + let held!: import('@deepseek-ai/dsh-agent').AgentRegistrationReservation + let scopedAgents!: AgentRegistry + const owner = await ctx.plugin(Object.assign((inner: Context) => { + scopedAgents = inner.agents + held = inner.agents.reserve(AgentId('fiber-held')) + }, { inject: ['agents'] })) + + expect(() => ctx.agents.reserve(AgentId('fiber-held'))).toThrow(/already registered or reserved/) + await owner.dispose() + const reused = ctx.agents.reserve(AgentId('fiber-held')) + reused.release() + held.release() // idempotent after the automatic owner-disposal release + + // A disposed tracker cannot own a new effect. The failed effect install + // must remove the map entry it tentatively reserved before propagating. + expect(() => scopedAgents.reserve(AgentId('inactive-owner'))).toThrow(/inactive context/) + const recovered = ctx.agents.reserve(AgentId('inactive-owner')) + recovered.release() + }) + + it('rejects direct and reentrant repeat announcements to preserve one lifecycle pair', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + let created = 0 + let disposed = 0 + let reentrantError = '' + ctx.on('agent/created', (agent) => { + created += 1 + try { + ctx.agents.announce(agent) + } catch (error: unknown) { + reentrantError = String(error) + } + }) + ctx.on('agent/disposed', () => { disposed += 1 }) + + const agent = stubAgent('once') + const detach = ctx.agents.enter(agent) + ctx.agents.announce(agent) + expect(reentrantError).toMatch(/already announced/) + expect(() => { ctx.agents.announce(agent) }).toThrow(/already announced/) + detach() + expect({ created, disposed }).toEqual({ created: 1, disposed: 1 }) + }) +}) + +describe('agentEvents()', () => { + it('contains synchronous throws and returned-promise rejections per listener', async () => { + const ctx = new Context() + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + const agent = stubAgent('contained') + const heard: string[] = [] + const hostile = { [Symbol.toPrimitive]() { throw new Error('cannot stringify') } } + + ctx.on('agent/status', () => { throw hostile }) + ctx.on('agent/status', () => Promise.reject(new Error('async listener')) as never) + ctx.on('agent/status', (_subject, status) => { heard.push(status) }) + + expect(() => { agentEvents(ctx, agent).emit('agent/status', 'running') }).not.toThrow() + await Promise.resolve() + await Promise.resolve() + + expect(heard).toEqual(['running']) + expect(warnings).toEqual([ + 'agent event "agent/status" listener threw: ', + 'agent event "agent/status" listener rejected: Error: async listener', + ]) + }) }) describe('AgentRegistry factory seam', () => { diff --git a/packages/core/scope/README.md b/packages/core/scope/README.md index f779dab57e..727acea4fb 100644 --- a/packages/core/scope/README.md +++ b/packages/core/scope/README.md @@ -9,7 +9,7 @@ Scoped-context registration primitive. `createScope(ctx, key)` mints a Cordis co - `Scope.rawDispose` The EXACT Cordis disposer for the backing fiber — a composite (generator) effect yields THIS function to nest the scope's teardown at that yield position (Cordis dedupes nested effects by function identity; yielding a wrapper leaves the scope disposing as a concurrent sibling). - `Scope.dispose(): Promise` Idempotent, shared quiescence boundary for every registration made through the scope. Racing/repeat calls await the same teardown, including when `rawDispose` invoked the underlying single-shot Cordis disposer first. - `scopeOf(ctx: Context): ScopeKey | undefined` The tag a context (or any context derived from it) carries; `undefined` = context-global. -- `scopeTarget(base: T, key?: ScopeKey): Scoped` Build the dispatch `thisArg` for a scope-filtered event: composes `base`'s own `Context.filter` with the scope predicate (untagged listener ⇒ admitted; tagged ⇒ admitted iff tag === key; `key === undefined` ⇒ untagged only). Listener `this` stays `base`-shaped. `{ global: true }` listeners bypass filtering (Cordis semantics). +- `scopeTarget(base: T, key: ScopeKey | undefined): Scoped` Build the dispatch `thisArg` for a scope-filtered event: capture and compose `base`'s own `Context.filter` with the scope predicate (untagged listener ⇒ admitted; tagged ⇒ admitted iff tag === key; `key === undefined` ⇒ untagged only). The carrier uses a dedicated surrogate proxy target whose immutable filter slot cannot be replaced by a base property pinned before, during, or after construction; ordinary property access, writes, own-key visibility, methods, invocation, and construction delegate to `base`, and callable carriers match the base's constructable/non-constructable shape. For non-overlay base-owned properties, descriptor queries preserve values and flags except that configurable is normalized to `true`, as required to report those properties through an extensible surrogate. Listener `this` stays `base`-shaped. `{ global: true }` listeners bypass filtering (Cordis semantics). - `Scoped` The compile-time carrier brand: scope-filtered events demand it as their `this` type, so dispatching with a bare subject is a compile error. - `isScopeCarrier(value)` / `carrierKeyOf(value)` Runtime carrier marks, used by the dev invariants to assert every scope-filtered dispatch carries a carrier keyed to the subject its arguments name. - `scopeHost(ctx, services)` Test/tooling host that snapshots the requested service list before activation, fails loud with stable missing-service diagnostics, and whose shared `dispose()` waits for both the host fiber and every minted scope, including a child already tearing down through `rawDispose`. diff --git a/packages/core/scope/src/index.ts b/packages/core/scope/src/index.ts index 276b406dcd..9c917fc89d 100644 --- a/packages/core/scope/src/index.ts +++ b/packages/core/scope/src/index.ts @@ -171,6 +171,20 @@ export function scopeOf(ctx: Context): ScopeKey | undefined { return (ctx as Context & { [kScope]?: ScopeKey })[kScope] } +/** Whether a callable has JavaScript's internal construction capability. */ +function isConstructable(value: (...args: unknown[]) => unknown): boolean { + try { + // A Proxy has [[Construct]] iff its target does. Its trap returns before + // the engine invokes `value` or reads `value.prototype`, so a hostile but + // constructable callable cannot be mistaken for a non-constructor. + Reflect.construct(new Proxy(value, { construct: () => ({}) }), []) + return true + } catch { + // The harmless outer trap leaves lack of [[Construct]] as the only failure. + return false + } +} + /** * Build the dispatch carrier for a scope-filtered event: `base` overlaid with * a `Context.filter` that admits a listener iff @@ -206,7 +220,10 @@ export function scopeOf(ctx: Context): ScopeKey | undefined { * @returns the carrier to pass as the dispatch `thisArg`. */ export function scopeTarget(base: T, key: ScopeKey | undefined): Scoped { - const baseFilter = (base as { [CordisContext.filter]?: (ctx: Context) => boolean })[CordisContext.filter] + const baseFilter: unknown = (base as { [CordisContext.filter]?: unknown })[CordisContext.filter] + if (baseFilter !== undefined && typeof baseFilter !== 'function') { + throw new TypeError('scope target Context.filter must be a function when present') + } const filter = (ctx: Context): boolean => { if (baseFilter && !baseFilter.call(base, ctx)) return false const tag = scopeOf(ctx) @@ -214,34 +231,57 @@ export function scopeTarget(base: T, key: ScopeKey | undefined } const overlay: Record = { [CordisContext.filter]: filter, - [kCarrier]: { key }, + [kCarrier]: Object.freeze({ key }), } - // A hand-rolled proxy, NOT cordis withProps: withProps delegates gets with - // the PROXY as receiver, so a getter on `base` runs with proxy `this` and a - // method call through the carrier gets a proxy receiver — either one throws - // on a native `#private` field of the subject (TypeError: private member - // not declared). Cordis hands the carrier to listeners as `this`, and the - // event declarations type it `Scoped` — so subject method calls - // through it are a SUPPORTED shape and must reach the real object: gets - // delegate with `base` as receiver, functions come back bound to `base`, - // and sets land on `base` directly. - return new Proxy(base, { + // Use a dedicated extensible proxy TARGET, never `base` itself. Proxy get + // invariants force a trap to return a base's non-configurable/non-writable + // own value verbatim; if a caller pinned Context.filter during or after + // construction, a base-target proxy would therefore silently replace the + // composed scope predicate with the caller's filter. The surrogate owns the + // two immutable overlay slots, so later descriptor changes on `base` cannot + // affect isolation. It shares the base prototype and delegates ordinary + // reads/writes/keys to preserve the supported transparent shape. Callable + // targets use native bound built-ins so V8 contributes no user-code surface; + // the chosen built-in matches whether `base` has [[Construct]], and the traps + // below delegate the actual call/construction to `base`. + const callableBase = typeof base === 'function' + ? base as unknown as (...args: unknown[]) => unknown + : undefined + const constructable = callableBase !== undefined && isConstructable(callableBase) + const target: object = callableBase === undefined + ? {} + : constructable + ? Object.bind(undefined) + : Math.max.bind(undefined) + Reflect.setPrototypeOf(target, Reflect.getPrototypeOf(base)) + Object.defineProperties(target, { + [CordisContext.filter]: { + value: filter, + enumerable: false, + writable: false, + configurable: false, + }, + [kCarrier]: { + value: overlay[kCarrier], + enumerable: false, + writable: false, + configurable: false, + }, + }) + const carrier = new Proxy(target, { get(target, prop) { - // Proxy get invariants pin what this trap may report for a - // non-configurable OWN property of the base: a non-writable data prop - // must be reported AS-IS (neither overlaid nor bound), a getterless - // accessor as undefined — checked FIRST so even an overlay key - // colliding with a frozen own prop of a (pathological) base yields the - // base's value instead of an engine TypeError. Such a base forgoes - // scope filtering; no production base freezes these keys. + // The callable surrogate has engine-owned pinned properties (`prototype`, + // `caller`, …); honor those target invariants. For object carriers the + // only pinned target properties are the exact overlay values above. const own = Reflect.getOwnPropertyDescriptor(target, prop) const pinned = own !== undefined && own.configurable === false && own.get === undefined && own.writable !== true - // hasOwn, not `in`: the overlay literal inherits Object.prototype, so - // `in` would claim `toString`/`constructor` and shadow the subject's. - if (!pinned && Object.hasOwn(overlay, prop)) return overlay[prop] - const value: unknown = Reflect.get(target, prop, target) - if (typeof value !== 'function' || pinned) return value + if (pinned) { + const value: unknown = Reflect.get(target, prop, target) + return value + } + const value: unknown = Reflect.get(base, prop, base) + if (typeof value !== 'function') return value // `constructor` is looked up, never invoked as a subject method — keep // the real one (withProps special-cases it the same way), so // `carrier.constructor` still identifies the subject's class. @@ -249,12 +289,66 @@ export function scopeTarget(base: T, key: ScopeKey | undefined // `Function.prototype.bind` types as `any`; the value is structurally // T[prop] and the trap's contract is untyped (`any`), so unknown is the // honest safe return. - return value.bind(target) as unknown + return value.bind(base) as unknown }, - set(target, prop, value) { - return Reflect.set(target, prop, value, target) + set(_target, prop, value) { + if (Object.hasOwn(overlay, prop)) return false + return Reflect.set(base, prop, value, base) }, - }) as Scoped + has(_target, prop) { + // A Proxy may not hide a non-configurable target key. Configurable + // surrogate-only keys (bound-function name/length) are omitted; the + // base's own/inherited surface remains authoritative. + const own = Reflect.getOwnPropertyDescriptor(target, prop) + return own?.configurable === false || Reflect.has(base, prop) + }, + ownKeys(target) { + const requiredTargetKeys = Reflect.ownKeys(target).filter((prop) => { + return Reflect.getOwnPropertyDescriptor(target, prop)?.configurable === false + }) + return [...new Set([...requiredTargetKeys, ...Reflect.ownKeys(base)])] + }, + getOwnPropertyDescriptor(target, prop) { + const targetDescriptor = Reflect.getOwnPropertyDescriptor(target, prop) + if (targetDescriptor?.configurable === false) return targetDescriptor + const baseDescriptor = Reflect.getOwnPropertyDescriptor(base, prop) + if (baseDescriptor !== undefined) return { ...baseDescriptor, configurable: true } + // Configurable surrogate-only function metadata is intentionally hidden. + return undefined + }, + defineProperty(_target, prop, attributes) { + if (Object.hasOwn(overlay, prop)) return false + return Reflect.defineProperty(base, prop, attributes) + }, + deleteProperty(_target, prop) { + if (Object.hasOwn(overlay, prop)) return false + return Reflect.deleteProperty(base, prop) + }, + preventExtensions() { + // Keeping the surrogate extensible is required for ownKeys to report + // caller-owned base fields that may change over the carrier's lifetime. + return false + }, + setPrototypeOf() { + // The carrier prototype and base delegation must not be split. + return false + }, + apply(_target, thisArg, args) { + const callable = callableBase as (...values: unknown[]) => unknown + const result: unknown = Reflect.apply(callable, thisArg, args) + return result + }, + construct(_target, args, newTarget) { + const constructor = callableBase as unknown as new (...values: unknown[]) => object + const result: unknown = Reflect.construct( + constructor, + args, + newTarget === carrier ? constructor : newTarget, + ) + return result as object + }, + }) + return carrier as Scoped } /** @@ -266,10 +360,8 @@ export function scopeTarget(base: T, key: ScopeKey | undefined * @returns true iff `value` came from {@link scopeTarget}. */ export function isScopeCarrier(value: unknown): value is Scoped { - if (typeof value !== 'object' || value === null) return false - // A property READ, not an `in` check: the carrier overlays its marks in the - // get trap only (no `has` trap), so `kCarrier in carrier` would fall - // through to the wrapped base and always answer false. + if ((typeof value !== 'object' && typeof value !== 'function') || value === null) return false + // A property read checks the immutable marker owned by the surrogate target. return (value as { [kCarrier]?: { key: ScopeKey | undefined } })[kCarrier] !== undefined } diff --git a/packages/core/scope/tests/scope.spec.ts b/packages/core/scope/tests/scope.spec.ts index e572584fb1..5b379d15e5 100644 --- a/packages/core/scope/tests/scope.spec.ts +++ b/packages/core/scope/tests/scope.spec.ts @@ -232,7 +232,7 @@ describe('scopeTarget dispatch filtering', () => { expect(detached()).toBe(2) }) - it('delegates sets to the base and leaves frozen own function props unbound (proxy invariant)', () => { + it('delegates the ordinary reflective surface while keeping overlays immutable', () => { const frozenFn = (): string => 'frozen' const base: { mutable: number; pinned: () => string; toString: () => string } = { mutable: 0, @@ -243,25 +243,158 @@ describe('scopeTarget dispatch filtering', () => { const carrier = scopeTarget(base, undefined) carrier.mutable = 7 expect(base.mutable).toBe(7) // sets land on the base, not a detached overlay - // A non-configurable, non-writable own data prop must be reported - // unchanged (binding it would violate the proxy get invariant). - expect(carrier.pinned).toBe(frozenFn) + // The surrogate target frees reads from the base property's proxy + // invariant, so even a frozen own method can be safely bound to the base. + expect(carrier.pinned).not.toBe(frozenFn) + expect(carrier.pinned()).toBe('frozen') // The overlay literal inherits Object.prototype; hasOwn (not `in`) keeps // it from shadowing the subject's own prototype-surface members. expect(String(carrier)).toBe('base-str') + expect('mutable' in carrier).toBe(true) + expect(Object.hasOwn(carrier, 'mutable')).toBe(true) + expect(Object.keys(carrier)).toEqual(['mutable', 'pinned', 'toString']) + Object.defineProperty(carrier, 'extra', { value: 1, configurable: true }) + expect((base as typeof base & { extra?: number }).extra).toBe(1) + expect(delete (carrier as typeof carrier & { extra?: number }).extra).toBe(true) + expect(Reflect.preventExtensions(carrier)).toBe(false) + expect(Reflect.setPrototypeOf(carrier, null)).toBe(false) }) - it('honors the get invariant even when an overlay key collides with a frozen own prop of the base', () => { - // Pathological but engine-enforced: a base whose own [Context.filter] is - // a non-configurable, non-writable data prop pins what any proxy over it - // may report for that key. The carrier must yield the base's value (an - // overlay there would be a runtime TypeError from the engine, not a - // filtering choice). Such a base forgoes scope filtering by construction. + it('keeps isolation when the base filter is pinned before, during, or after construction', async () => { + const ctx = new Context() + const keyA = { name: 'A' } + const keyB = { name: 'B' } + const scopeA = await mintScope(ctx, keyA) + const scopeB = await mintScope(ctx, keyB) + const heard: string[] = [] + ctx.on('scope-test/ping', value => void heard.push(`global:${value}`)) + scopeA.ctx.on('scope-test/ping', value => void heard.push(`A:${value}`)) + scopeB.ctx.on('scope-test/ping', value => void heard.push(`B:${value}`)) const pinnedFilter = (): boolean => true - const base = {} - Object.defineProperty(base, Context.filter, { value: pinnedFilter, writable: false, configurable: false }) - const carrier = scopeTarget(base, { name: 'key' }) - expect((carrier as Record)[Context.filter]).toBe(pinnedFilter) + + const pinnedData = {} + Object.defineProperty(pinnedData, Context.filter, { + value: pinnedFilter, + writable: false, + configurable: false, + }) + const pinnedCarrier = scopeTarget(pinnedData, keyA) + ctx.emit(pinnedCarrier, 'scope-test/ping', 'before') + + const duringRead = {} + Object.defineProperty(duringRead, Context.filter, { + configurable: true, + get() { + Object.defineProperty(duringRead, Context.filter, { + value: pinnedFilter, + writable: false, + configurable: false, + }) + return pinnedFilter + }, + }) + ctx.emit(scopeTarget(duringRead, keyA), 'scope-test/ping', 'during') + + const pinnedAfter = { [Context.filter]: pinnedFilter } + const afterCarrier = scopeTarget(pinnedAfter, keyA) + Object.defineProperty(pinnedAfter, Context.filter, { + value: pinnedFilter, + writable: false, + configurable: false, + }) + ctx.emit(afterCarrier, 'scope-test/ping', 'after') + + const pinnedGetterless = {} + Object.defineProperty(pinnedGetterless, Context.filter, { set(_value: unknown) {}, configurable: false }) + ctx.emit(scopeTarget(pinnedGetterless, keyA), 'scope-test/ping', 'getterless') + + expect(heard).toEqual([ + 'global:before', 'A:before', + 'global:during', 'A:during', + 'global:after', 'A:after', + 'global:getterless', 'A:getterless', + ]) + expect((pinnedCarrier as Record)[Context.filter]).not.toBe(pinnedFilter) + expect(Reflect.set(pinnedCarrier, Context.filter, pinnedFilter)).toBe(false) + expect(Reflect.defineProperty(pinnedCarrier, Context.filter, { value: pinnedFilter })).toBe(false) + expect(Reflect.deleteProperty(pinnedCarrier, Context.filter)).toBe(false) + + expect(() => scopeTarget({ [Context.filter]: 1 }, { name: 'A' })).toThrow( + /Context\.filter must be a function/, + ) + }) + + it('preserves callable and constructable bases', () => { + function Subject(this: { value?: number }, value: number): number { + if (new.target) { + this.value = value + return value + } + return value * 2 + } + const carrier = scopeTarget(Subject as typeof Subject & (new (value: number) => { value: number }), { + name: 'callable', + }) + + const called: unknown = Reflect.apply(carrier, { value: 0 }, [3]) + expect(called).toBe(6) + const instance = new carrier(4) + expect(instance).toBeInstanceOf(Subject) + expect(instance.value).toBe(4) + const prototypeDescriptor = Object.getOwnPropertyDescriptor(carrier, 'prototype') + const subjectPrototype: unknown = Reflect.get(Subject, 'prototype') + expect(prototypeDescriptor?.configurable).toBe(true) + expect(prototypeDescriptor?.value).toBe(subjectPrototype) + class Derived extends carrier {} + const derived = new Derived(5) + expect(derived).toBeInstanceOf(Derived) + expect(derived).toBeInstanceOf(Subject) + expect(derived.value).toBe(5) + expect(isScopeCarrier(carrier)).toBe(true) + }) + + it('matches non-constructable and bound-constructor function shapes', () => { + const arrow = (value: number): number => value + 1 + const arrowCarrier = scopeTarget(arrow, { name: 'arrow' }) + const arrowResult: unknown = Reflect.apply(arrowCarrier, undefined, [2]) + expect(arrowResult).toBe(3) + expect('prototype' in arrowCarrier).toBe(false) + expect(Object.getOwnPropertyDescriptor(arrowCarrier, 'prototype')).toBeUndefined() + expect(() => { Reflect.construct(arrowCarrier, []) }).toThrow(TypeError) + + class Subject { + constructor(readonly value: number) {} + } + const bound = Subject.bind(undefined, 7) + const boundCarrier = scopeTarget(bound, { name: 'bound-constructor' }) + expect('prototype' in boundCarrier).toBe(false) + expect(Object.getOwnPropertyDescriptor(boundCarrier, 'prototype')).toBeUndefined() + const instance = new boundCarrier() + expect(instance).toBeInstanceOf(Subject) + expect(instance.value).toBe(7) + }) + + it('detects construction without reading a hostile base prototype', () => { + class Subject { + constructor(readonly value: number) {} + } + let prototypeReads = 0 + const hostile = new Proxy(Subject, { + get(target, prop, receiver) { + if (prop === 'prototype') { + prototypeReads += 1 + throw new Error('hostile prototype getter') + } + return Reflect.get(target, prop, receiver) as unknown + }, + }) + + const carrier = scopeTarget(hostile, { name: 'hostile-constructor' }) + expect(prototypeReads).toBe(0) + const instance: unknown = Reflect.construct(carrier, [9], Subject) + expect(instance).toBeInstanceOf(Subject) + expect(instance).toMatchObject({ value: 9 }) + expect(prototypeReads).toBe(0) }) it('keeps the real constructor: class identity survives the carrier', () => { diff --git a/packages/core/session/README.md b/packages/core/session/README.md index 36052d9e7a..29f89e35c8 100644 --- a/packages/core/session/README.md +++ b/packages/core/session/README.md @@ -4,7 +4,7 @@ Event-sourced session log and in-memory store. A `Session` is the append-only so ## Service: `SessionStore` (ctx key: `sessions`) -Creates and holds event-sourced `Session` instances. Persistence is intentionally not implemented here — plugins subscribe to `session/event` and flush on `session/flush`. +Creates and holds event-sourced `Session` instances. Persistence is intentionally not implemented here — plugins subscribe to `session/event`, flush on `session/flush`, and may mirror the paired `session/created`/`session/disposed` lifecycle. ### Public API @@ -16,17 +16,18 @@ Creates and holds event-sourced `Session` instances. Persistence is intentionall #### Advanced: ordered-teardown lifecycle primitives -`create()` covers the common case (the session is owned by the calling fiber). When a session must be torn down **in order with another resource** — so a final flush is captured before `onAppend` detaches — `create()`'s self-contained effect is wrong, because a fiber unload disposes sibling effects *concurrently*. For that, split the lifecycle and fold it into the owner's single effect: +`create()` covers the common case (the session is owned by the calling fiber). When a session must be torn down **in order with another resource** — so a final flush is captured before the store-owned append observer detaches — `create()`'s self-contained effect is wrong, because a fiber unload disposes sibling effects *concurrently*. For that, split the lifecycle and fold it into the owner's single effect: - `ctx.sessions.prepare(id?, options?): Session` — read `options.seed`/`options.meta` once, validate and detach the metadata/header, and construct the `Session` WITHOUT entering it into the store. Same options as `create`. -- `ctx.sessions.enter(session): () => void` — wire `onAppend` → `session/event`, capture its scope carrier, and add the session to the store; returns the idempotent DETACH disposer, which clears both notification and carrier state. Does NOT emit `session/created` (the caller installs the disposer first, then calls `announce`, so a throwing listener rolls the attach back). It re-checks the id because public `prepare`/`enter` calls may be interleaved; a stale prepared object must not overwrite a live same-id session. -- `ctx.sessions.announce(session): void` — emit `session/created` for an entered session. +- `ctx.sessions.reserve(id): SessionRegistrationReservation` — hold an unpublished id under the calling fiber and construct its one owned Session through `reservation.prepare(options?)`. Until `release()` or owner unload, bare `prepare`/`create`/`enter` calls for that id reject; the factory later presents the exact capability to `enter`, making setup-time publication structurally impossible without leaking an abandoned reservation across HMR disposal. +- `ctx.sessions.enter(session, reservation?): () => void` — install the module-private `session/event` observer, capture its scope carrier, and add the session under one accepted id; returns the idempotent DETACH disposer, which clears notification, carrier, and accepted-key state. Does NOT emit `session/created` (the caller installs the disposer first, then calls `announce`, so a throwing listener rolls the attach back). It re-checks the id because public `prepare`/`enter` calls may be interleaved; a stale prepared object must not overwrite a live same-id session. A factory passes the opaque capability from `reserve(id)` so setup cannot enter the reserved session or publish a same-id replacement before the owning transaction. +- `ctx.sessions.announce(session): void` — begin the one allowed `session/created` announcement for an entered session; repeat and reentrant calls reject before dispatch. Its detach emits `session/disposed` exactly once, including rollback after a partially delivered creation notification; a never-announced entry emits neither edge. `dsh-agent-loop` is the canonical consumer: after unpublished agent setup it enters both session and agent before announcing either, then nests loop stop, agent removal, session detach, and scope unwind in one ordered lifecycle. The final flush therefore settles before this package detaches the session, whether teardown starts from an `AgentHandle` or owner-fiber unload. ### Live service events -The store announces creation, publishes each append, and provides an awaited durability checkpoint. Exact `session/*` signatures, modes, and scope-carrier behavior live in the generated [Cordis event catalog](../../../docs/cordis-catalog/events.md); the append-only payload vocabulary is separately generated into the [persistence catalog](../../../docs/persistence-catalog.md). Persistence consumers write behind from the append notification and drain on the store-owned flush entry point rather than dispatching the event directly. +The store pairs announced creation with disposal, publishes each append, and provides an awaited durability checkpoint. Disposal listener failures, including returned-promise rejections, are contained per observer so teardown cannot be interrupted. Exact `session/*` signatures, modes, and scope-carrier behavior live in the generated [Cordis event catalog](../../../docs/cordis-catalog/events.md); the append-only payload vocabulary is separately generated into the [persistence catalog](../../../docs/persistence-catalog.md). Persistence consumers write behind from the append notification and drain on the store-owned flush entry point rather than dispatching the event directly. ### Class: `Session` @@ -37,8 +38,8 @@ Plain class (not a Cordis Service). Create via `ctx.sessions.create()`. - `session.deriveEventMessage(event): Message | null` — the per-event projection `deriveMessages()` folds: one event's derived message (an unfrozen clone), or `null` when it produces none (a non-surface event, or an empty-content `assistant/message` hosting only usage). External reconstructors and the dev invariant fold the same function over a log prefix's surface, so no two paths can disagree about what a request's messages were (the reconstructability RFC). - `session.surface: SurfaceManager` — the derived surface, lazily rebuilt from `surfaceOp` markers in the log. Processes only new events (delta) on each access — the log is append-only, so prior events never change. `surface.replaceGeneration` is the rewrite signal: bumped by every folded `replace` and by `invalidate()`, never reset, so an incremental consumer comparing generations cannot be fooled. - `session.events` — a cached, frozen array snapshot over deep-frozen events. Repeated reads without an append return the same array; an append invalidates the cache and the next read returns a new snapshot, while earlier snapshots stay unchanged. Neither a cast nor a retained reference can push into the live log or rewrite an accepted event. -- `session.seq`, `session.id` -- `session.header: SessionHeader` — detached, deep-frozen creation metadata (`version`, `id`, `createdAt`, optional `cwd`/`parentSession`/`seedLength`). Construction validates its lossless-JSON shape and requires the header id to match `session.id`, so a caller cannot later mutate persistence routing or lineage through an aliased header. Kept out of the event log (a storage concern, not replayable state); a minimal header (stamped with the current `SESSION_FORMAT_VERSION`) is synthesized for bare `Session` construction. +- `session.seq`, `session.id` — `id` is a non-writable, non-configurable runtime identity slot, not merely TypeScript-readonly. +- `session.header: SessionHeader` — detached, deep-frozen creation metadata (`version`, `id`, `createdAt`, optional `cwd`/`parentSession`/`seedLength`) published through a non-writable, non-configurable slot. Construction validates its lossless-JSON shape and requires the header id to match `session.id`, so a caller cannot later replace or mutate persistence routing or lineage. Kept out of the event log (a storage concern, not replayable state); a minimal header (stamped with the current `SESSION_FORMAT_VERSION`) is synthesized for bare `Session` construction. ### Lossless JSON utilities diff --git a/packages/core/session/src/index.ts b/packages/core/session/src/index.ts index 51500e9e1b..b000e7083b 100644 --- a/packages/core/session/src/index.ts +++ b/packages/core/session/src/index.ts @@ -34,7 +34,10 @@ declare module 'cordis' { interface Events { /** - * A session was created in the store. + * A session was created in the store. A synchronous listener throw vetoes + * publication and rollback emits the matching `session/disposed` edge; + * returned-promise rejection is observed and logged but cannot retroactively + * veto this synchronous boundary. * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the * session's owner scope, captured when the session was ENTERED (an agent's * session is entered through `agent.ctx`, so its events dispatch in that @@ -45,6 +48,18 @@ declare module 'cordis' { * @mode emit */ 'session/created'(this: Scoped, session: Session): void + /** + * A previously announced session left the store. Emitted exactly once on + * normal detach or publication rollback, and never for a prepared/entered + * session whose `session/created` announcement did not begin. Listener + * failures (including returned-promise rejections) are logged and contained + * per listener so teardown always reaches quiescence. + * Scope-filtered dispatch uses the same owner carrier captured at entry; + * agent-scoped listeners hear only their own session's teardown. + * @param session - the session that is no longer live in the store. + * @mode emit + */ + 'session/disposed'(this: Scoped, session: Session): void /** * An event was appended to a session log (sync, fire-and-forget). This is * the per-append feed a UI or invariant plugin tails. @@ -253,6 +268,17 @@ function assertSessionEventEnvelope(value: Record, index: numbe } } +/** Render an arbitrary thrown value without allowing coercion to throw again. */ +function renderThrown(value: unknown): string { + try { + return value instanceof Error ? `${value.name}: ${value.message}` : String(value) + } catch { + return '' + } +} + +const appendObservers = new WeakMap void>() + /** * An event-sourced session: an append-only log of {@link SessionEvent}s. * @@ -261,8 +287,6 @@ function assertSessionEventEnvelope(value: Record, index: numbe */ export class Session { private log: SessionEvent[] = [] - /** Set by the store so appends are observable; undefined when detached. */ - onAppend: ((event: SessionEvent) => void) | undefined /** * Derived surface — a cached linked list of message-producing events. @@ -336,6 +360,14 @@ export class Session { }) } this.header = snapshotSessionHeader(id, header) + // TypeScript readonly prevents ordinary typed assignment only. Pin both + // public identity bindings at runtime too: setup/plugins receive the live + // Session object, and replacing either slot would split registry keys, + // persistence routing, and the already-validated header. + Object.defineProperties(this, { + id: { value: id, enumerable: true, writable: false, configurable: false }, + header: { value: this.header, enumerable: true, writable: false, configurable: false }, + }) } /** Cached immutable public snapshot of the private append-only log. */ @@ -359,8 +391,8 @@ export class Session { /** * Append one typed event to the log and synchronously notify observers via - * `onAppend`. The hot path never blocks on I/O — persistence plugins buffer - * asynchronously. + * the store-owned, module-private append observer. The hot path never blocks + * on I/O — persistence plugins buffer asynchronously. * * @param type - The event type (key of {@link SessionEventMap}). * @param data - The event payload; must be JSON-serializable. @@ -444,7 +476,7 @@ export class Session { const acceptedEvent = deepFreeze(event) this.log.push(acceptedEvent as unknown as SessionEvent) this.eventsSnapshot = undefined - this.onAppend?.(acceptedEvent as unknown as SessionEvent) + appendObservers.get(this)?.(acceptedEvent as unknown as SessionEvent) return acceptedEvent } @@ -599,6 +631,29 @@ export class SessionForkError extends Error { } } +/** + * Unforgeable ownership handle for one unpublished session id. A factory keeps + * this capability across load/setup, preventing setup code from entering the + * prepared Session or publishing a replacement under the same id. Obtain it + * only from {@link SessionStore.reserve}. + */ +export interface SessionRegistrationReservation { + /** The reserved store id. */ + readonly id: SessionId + /** + * Construct the one Session owned by this reservation. + * @param options - seed events and creation metadata. + * @returns the still-unpublished Session. + */ + prepare(options?: CreateSessionOptions): Session + /** + * Release the unpublished reservation; idempotent. The store also releases + * it automatically when the fiber that called `reserve` disposes. + * @returns nothing. + */ + release(): void +} + /** * In-memory session store (`ctx.sessions`). * @@ -607,6 +662,14 @@ export class SessionForkError extends Error { */ export class SessionStore extends Service { private store = new Map() + /** The one accepted map key for each live session; never reread caller state. */ + private acceptedIds = new WeakMap() + /** Sessions whose creation announcement began and therefore require a pair. */ + private announced = new WeakSet() + /** Unpublished identities held across factory load/setup transactions. */ + private reservations = new Map() + /** The exact prepared object owned by each reservation capability. */ + private reservedSessions = new WeakMap() /** * Each live session's dispatch carrier, captured at {@link enter} from the * ENTERING context's scope tag (an agent session is entered through @@ -621,6 +684,59 @@ export class SessionStore extends Service { super(ctx, 'sessions') } + /** + * Reserve one unpublished session id across an asynchronous factory + * transaction. Bare `prepare`/`create`/`enter` calls for the id reject until + * release; the capability constructs exactly one Session and is passed back + * to {@link enter} at publication. The reservation belongs to the calling + * fiber, so owner unload releases an abandoned id automatically. + * @param id - the session id the transaction will publish. + * @returns the opaque reservation capability. + * @throws if the id is malformed, live, or already reserved. + */ + reserve(id: SessionId): SessionRegistrationReservation { + if (typeof id !== 'string') throw new TypeError('session id must be a string') + if (this.store.has(id) || this.reservations.has(id)) { + throw new Error(`session "${id}" already exists or is reserved`) + } + let active = true + let prepared = false + const rawRelease = (): void => { + if (!active) return + active = false + this.reservedSessions.delete(reservation) + this.reservations.delete(id) + } + let disposeEffect!: () => Promise | void + const reservation: SessionRegistrationReservation = Object.freeze({ + id, + prepare: (options?: CreateSessionOptions) => { + if (!active) { + throw new Error(`session "${id}" reservation is no longer active`) + } + if (prepared) throw new Error(`session "${id}" reservation already prepared a session`) + prepared = true + const session = this.prepareReserved(id, options, reservation) + this.reservedSessions.set(reservation, session) + return session + }, + release: () => { + rawRelease() + // Remove the now-inert ownership effect on manual transaction settle; + // its cleanup is the exact idempotent raw release above. + void disposeEffect() + }, + }) + this.reservations.set(id, reservation) + try { + disposeEffect = this.ctx.effect(() => rawRelease, `sessions.reserve(${id})`) + } catch (error: unknown) { + rawRelease() + throw error + } + return reservation + } + /** * Create a session owned by the calling fiber: disposing that fiber stops * event notification and removes the session from the store. `options.seed` @@ -630,7 +746,7 @@ export class SessionStore extends Service { * fills `version`/`id`/`createdAt`). * * For an agent whose session must be torn down IN ORDER with its loop (so the - * loop's final flush is captured before `onAppend` detaches), do NOT use this + * loop's final flush is captured before the store-owned observer detaches), do NOT use this * — fold the session lifecycle into the agent's own effect via * {@link prepare} + {@link enter} + {@link announce} (see `dsh-agent-loop`'s * `startOwned`). @@ -647,7 +763,7 @@ export class SessionStore extends Service { // Single effect owned by the calling fiber. Yield the detach BEFORE // announcing so a throwing `session/created` listener rolls the attach back // (the generator effect disposes already-yielded disposers on a throw) - // instead of leaking the store entry + onAppend. + // instead of leaking the store entry + append observer. this.ctx.effect(function* (this: SessionStore) { yield this.enter(session) this.announce(session) @@ -661,7 +777,7 @@ export class SessionStore extends Service { * Pairs with {@link enter} + {@link announce}: a caller that owns a composite * `ctx.effect` (the agent factory) folds the session lifecycle into that ONE * effect so a fiber unload tears the session + agent down as a single ORDERED - * chain rather than as racing sibling effects — which would detach `onAppend` + * chain rather than as racing sibling effects — which would detach the append observer * before the loop's closing `session/flush`, dropping the closing events. * * @param id - the session id; omitted, the store mints `session-`. @@ -672,7 +788,27 @@ export class SessionStore extends Service { * non-absolute path. */ prepare(id?: SessionId, options?: CreateSessionOptions): Session { - const sessionId = SessionId(id ?? `session-${++this.counter}`) + return this.prepareReserved(id, options) + } + + /** Shared prepare implementation, optionally authorized by a reservation. */ + private prepareReserved( + id?: SessionId, + options?: CreateSessionOptions, + reservation?: SessionRegistrationReservation, + ): Session { + let sessionId: SessionId + if (id === undefined) { + do sessionId = SessionId(`session-${++this.counter}`) + while (this.store.has(sessionId) || this.reservations.has(sessionId)) + } else { + sessionId = SessionId(id) + } + if (typeof sessionId !== 'string') throw new TypeError('session id must be a string') + const held = this.reservations.get(sessionId) + if (reservation === undefined && held !== undefined) { + throw new Error(`session "${sessionId}" is reserved for unpublished creation`) + } if (this.store.has(sessionId)) throw new Error(`session "${sessionId}" already exists`) const seed = options?.seed const meta = snapshotSessionMeta(options?.meta) @@ -691,9 +827,9 @@ export class SessionStore extends Service { } /** - * Enter a {@link prepare}d session into the store: wire `onAppend` → - * `session/event` and add it to the store. Returns the DETACH disposer - * (`onAppend = undefined` + store removal). Does NOT emit `session/created` — + * Enter a {@link prepare}d session into the store: wire the module-private + * append observer to `session/event` and add it to the store. Returns the + * DETACH disposer (observer + store removal). Does NOT emit `session/created` — * the caller yields this disposer inside its effect and THEN calls * {@link announce}, so a throwing `session/created` listener rolls the attach * back instead of leaking it. @@ -707,11 +843,23 @@ export class SessionStore extends Service { * assume that. * * @param session - a {@link prepare}d session not yet in the store. - * @returns the detach disposer (`onAppend = undefined` + store removal). + * @param reservation - the exact unpublished-id capability when a factory + * reserved this session across setup. + * @returns the detach disposer (observer + store removal). * @throws if a session with this id is already in the store. */ - enter(session: Session): () => void { - if (this.store.has(session.id)) throw new Error(`session "${session.id}" already exists`) + enter(session: Session, reservation?: SessionRegistrationReservation): () => void { + const id = session.id + if (typeof id !== 'string') throw new TypeError('session id must be a string') + const held = this.reservations.get(id) + if (reservation === undefined) { + if (held !== undefined) throw new Error(`session "${id}" is reserved for unpublished creation`) + } else if (reservation.id !== id || held !== reservation + || this.reservedSessions.get(reservation) !== session) { + throw new Error(`session "${id}" registration reservation does not own this prepared session`) + } + if (this.store.has(id)) throw new Error(`session "${id}" already exists`) + if (appendObservers.has(session)) throw new Error(`session "${id}" is already attached to a store`) // The carrier is decided HERE, once, from the ENTERING context's scope tag // (`this.ctx` is the caller's context — the tracker mechanism): every // session/created|event|flush dispatch for this session uses it, so the @@ -720,24 +868,65 @@ export class SessionStore extends Service { const carrier = scopeTarget(session, scopeOf(this.ctx)) this.carriers.set(session, carrier) const emitCtx = this.ctx - session.onAppend = (event) => { emitCtx.emit(carrier, 'session/event', session, event) } - this.store.set(session.id, session) + appendObservers.set(session, (event) => { emitCtx.emit(carrier, 'session/event', session, event) }) + this.acceptedIds.set(session, id) + this.store.set(id, session) let entered = true return () => { if (!entered) return entered = false - session.onAppend = undefined + const wasAnnounced = this.announced.delete(session) + appendObservers.delete(session) + this.acceptedIds.delete(session) this.carriers.delete(session) - this.store.delete(session.id) + this.store.delete(id) + if (wasAnnounced) this.emitDisposed(session, carrier, id) } } - /** Emit `session/created` for an {@link enter}ed session (with the carrier - * {@link enter} captured). Separate from {@link enter} so the caller can - * yield the detach disposer first (rollback safety — see {@link enter}). - * @param session - the entered session to announce to listeners. */ + /** Emit `session/created` exactly once for an {@link enter}ed session (with + * the carrier {@link enter} captured). Separate from {@link enter} so the + * caller can yield the detach disposer first (rollback safety — see + * {@link enter}). + * @param session - the entered session to announce to listeners. + * @throws if the session is not live or its announcement already began, + * including a reentrant call from a creation listener. */ announce(session: Session): void { - this.ctx.emit(this.liveCarrierFor(session), 'session/created', session) + const carrier = this.liveCarrierFor(session) + if (this.announced.has(session)) { + throw new Error(`session "${session.id}" was already announced`) + } + // Mark before emit: Cordis emit may deliver to earlier listeners and then + // throw. Rollback must still pair that partial creation with disposal, and + // a listener cannot recursively create a second lifecycle edge. + this.announced.add(session) + const args: unknown[] = [carrier, 'session/created', session] + for (const callback of this.ctx.events.dispatch('emit', args)) { + // Synchronous throws intentionally propagate and veto publication; the + // yielded detach then emits the paired disposal edge. An async function + // is nevertheless assignable to a void listener, so observe its returned + // promise: rejection is too late to roll back and must be logged instead + // of becoming unhandled. + const returned: unknown = callback(...args) + void Promise.resolve(returned).catch((error: unknown) => { + this.ctx.logger.warn(`session "${session.id}": session/created listener rejected: ${renderThrown(error)}`) + }) + } + } + + /** Emit the paired teardown notification with per-listener containment. */ + private emitDisposed(session: Session, carrier: Scoped, id: SessionId): void { + const args: unknown[] = [carrier, 'session/disposed', session] + for (const callback of this.ctx.events.dispatch('emit', args)) { + try { + const returned: unknown = callback(...args) + void Promise.resolve(returned).catch((error: unknown) => { + this.ctx.logger.warn(`session "${id}": session/disposed listener rejected: ${renderThrown(error)}`) + }) + } catch (error: unknown) { + this.ctx.logger.warn(`session "${id}": session/disposed listener threw: ${renderThrown(error)}`) + } + } } /** @@ -756,8 +945,9 @@ export class SessionStore extends Service { /** Return the exact live session's carrier; detached/prepared objects reject. */ private liveCarrierFor(session: Session): Scoped { - if (this.store.get(session.id) !== session) { - throw new Error(`session "${session.id}" is not live in this store`) + const id = this.acceptedIds.get(session) + if (id === undefined || this.store.get(id) !== session) { + throw new Error(`session "${id ?? session.id}" is not live in this store`) } const carrier = this.carriers.get(session) // enter() installs store + carrier in one synchronous sequence; a live @@ -765,7 +955,7 @@ export class SessionStore extends Service { // to subject-less dispatch (that would silently cross scope boundaries). /* v8 ignore next -- enter installs store and carrier in one synchronous sequence */ if (carrier === undefined) { - throw new Error(`session "${session.id}" has no dispatch carrier`) + throw new Error(`session "${id}" has no dispatch carrier`) } return carrier } diff --git a/packages/core/session/tests/scoped.spec.ts b/packages/core/session/tests/scoped.spec.ts index ee1e710397..80dd8510d2 100644 --- a/packages/core/session/tests/scoped.spec.ts +++ b/packages/core/session/tests/scoped.spec.ts @@ -60,6 +60,23 @@ describe('session dispatch carriers', () => { bare.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) expect(heard).toEqual(['global:turn/start']) }) + + it('reuses the captured owner carrier for the paired disposal notification', async () => { + const ctx = await mount() + const owner = await mintScope(ctx, 'owner') + const other = await mintScope(ctx, 'other') + const heard: string[] = [] + ctx.on('session/disposed', (session) => { heard.push(`global:${session.id}`) }) + owner.ctx.on('session/disposed', (session) => { heard.push(`owner:${session.id}`) }) + other.ctx.on('session/disposed', (session) => { heard.push(`other:${session.id}`) }) + + const session = owner.ctx.sessions.prepare() + const detach = owner.ctx.sessions.enter(session) + owner.ctx.sessions.announce(session) + detach() + + expect(heard).toEqual([`global:${session.id}`, `owner:${session.id}`]) + }) }) describe('sessions.flush()', () => { diff --git a/packages/core/session/tests/session.spec.ts b/packages/core/session/tests/session.spec.ts index f7037609e6..ac0f06123c 100644 --- a/packages/core/session/tests/session.spec.ts +++ b/packages/core/session/tests/session.spec.ts @@ -578,6 +578,17 @@ describe('Session', () => { expect(session.header).not.toBe(input) expect(Object.isFrozen(session.header)).toBe(true) expect(Reflect.set(session.header, 'cwd', '/published-mutated')).toBe(false) + expect(Reflect.set(session, 'id', SessionId('redirected'))).toBe(false) + expect(Reflect.set(session, 'header', input)).toBe(false) + expect(Object.getOwnPropertyDescriptor(session, 'id')).toMatchObject({ + configurable: false, + writable: false, + }) + expect(Object.getOwnPropertyDescriptor(session, 'header')).toMatchObject({ + configurable: false, + writable: false, + }) + expect(session.id).toBe('header-owned') expect(session.header.cwd).toBe('/accepted') }) @@ -691,6 +702,10 @@ describe('SessionStore', () => { const session = ctx.sessions.create() expect(created).toEqual([session]) + // The store-owned append observer is module-private. A JavaScript caller + // may create an unrelated property with the old implementation's name, + // but cannot suppress the durable event feed. + expect(Reflect.set(session, 'onAppend', undefined)).toBe(true) session.append('user/message', { content: [{ type: 'text', text: 'x' }], source: { kind: 'user' } }, { surfaceOp: 'append' }) expect(events).toHaveLength(1) expect(events[0]![0]).toBe(session) @@ -746,6 +761,114 @@ describe('SessionStore', () => { expect(ctx.sessions.get(SessionId('lifecycle'))).toBeUndefined() }) + it('captures the accepted id once and prevents simultaneous attachment to two stores', async () => { + const firstCtx = new Context() + const secondCtx = new Context() + await firstCtx.plugin(SessionStore) + await secondCtx.plugin(SessionStore) + const session = new Session(SessionId('owned-key')) + const detachFirst = firstCtx.sessions.enter(session) + + expect(Reflect.set(session, 'id', SessionId('redirected'))).toBe(false) + expect(() => secondCtx.sessions.enter(session)).toThrow(/already attached to a store/) + expect(firstCtx.sessions.get(SessionId('owned-key'))).toBe(session) + + detachFirst() + expect(firstCtx.sessions.get(SessionId('owned-key'))).toBeUndefined() + const detachSecond = secondCtx.sessions.enter(session) + expect(secondCtx.sessions.get(SessionId('owned-key'))).toBe(session) + detachSecond() + + expect(() => firstCtx.sessions.enter({ id: 42 } as unknown as Session)).toThrow(/id must be a string/) + }) + + it('uses an opaque one-session reservation to gate unpublished factory insertion', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const held = ctx.sessions.reserve(SessionId('held-session')) + + expect(() => ctx.sessions.reserve(SessionId('held-session'))).toThrow(/already exists or is reserved/) + expect(() => ctx.sessions.prepare(SessionId('held-session'))).toThrow(/reserved for unpublished creation/) + expect(() => ctx.sessions.create(SessionId('held-session'))).toThrow(/reserved for unpublished creation/) + const session = held.prepare({ meta: { cwd: '/held' } }) + expect(() => held.prepare()).toThrow(/already prepared/) + expect(() => ctx.sessions.enter(session)).toThrow(/reserved for unpublished creation/) + + const other = ctx.sessions.reserve(SessionId('other-session')) + expect(() => ctx.sessions.enter(session, other)).toThrow(/does not own this prepared session/) + expect(() => ctx.sessions.enter(new Session(SessionId('held-session')), held)) + .toThrow(/does not own this prepared session/) + + const detach = ctx.sessions.enter(session, held) + ctx.sessions.announce(session) + held.release() + held.release() + expect(ctx.sessions.get(SessionId('held-session'))).toBe(session) + expect(() => ctx.sessions.reserve(SessionId('held-session'))).toThrow(/already exists or is reserved/) + detach() + other.release() + + const expired = ctx.sessions.reserve(SessionId('expired-session')) + expired.release() + expect(() => expired.prepare()).toThrow(/no longer active/) + expect(() => ctx.sessions.enter(new Session(SessionId('expired-session')), expired)) + .toThrow(/does not own this prepared session/) + expect(() => ctx.sessions.reserve(42 as unknown as SessionId)).toThrow(/id must be a string/) + expect(() => ctx.sessions.prepare(42 as unknown as SessionId)).toThrow(/id must be a string/) + + // Auto-generated ids skip unpublished reservations just as they skip live + // store entries; no hidden collision can be published later. + const firstAuto = ctx.sessions.reserve(SessionId('session-1')) + expect(ctx.sessions.prepare().id).toBe('session-2') + firstAuto.release() + }) + + it('owns reservations by the calling fiber and rolls back failed ownership registration', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + let held!: import('@deepseek-ai/dsh-session').SessionRegistrationReservation + let scopedSessions!: SessionStore + const owner = await ctx.plugin(Object.assign((inner: Context) => { + scopedSessions = inner.sessions + held = inner.sessions.reserve(SessionId('fiber-held')) + }, { inject: ['sessions'] })) + + expect(() => ctx.sessions.reserve(SessionId('fiber-held'))).toThrow(/already exists or is reserved/) + await owner.dispose() + const reused = ctx.sessions.reserve(SessionId('fiber-held')) + reused.release() + held.release() // idempotent after the automatic owner-disposal release + + expect(() => scopedSessions.reserve(SessionId('inactive-owner'))).toThrow(/inactive context/) + const recovered = ctx.sessions.reserve(SessionId('inactive-owner')) + recovered.release() + }) + + it('rejects direct and reentrant repeat announcements to preserve one lifecycle pair', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + let created = 0 + let disposed = 0 + let reentrantError = '' + ctx.on('session/created', (session) => { + created += 1 + try { + ctx.sessions.announce(session) + } catch (error: unknown) { + reentrantError = String(error) + } + }) + ctx.on('session/disposed', () => { disposed += 1 }) + + const session = ctx.sessions.prepare(SessionId('once')) + const detach = ctx.sessions.enter(session) + ctx.sessions.announce(session) + expect(reentrantError).toMatch(/already announced/) + expect(() => { ctx.sessions.announce(session) }).toThrow(/already announced/) + detach() + expect({ created, disposed }).toEqual({ created: 1, disposed: 1 }) + }) + it('synthesizes a minimal current-version header for a bare-created session', async () => { const ctx = new Context() await ctx.plugin(SessionStore) @@ -864,11 +987,13 @@ describe('SessionStore', () => { expect(observed).toBe(0) }) - it('rolls back the session (and onAppend) when a session/created listener throws (P1-1)', async () => { + it('pairs a partial session/created announcement with disposal during rollback', async () => { const ctx = new Context() await ctx.plugin(SessionStore) let threw = false + const disposed: Session[] = [] + ctx.on('session/disposed', (session) => { disposed.push(session) }) ctx.on('session/created', () => { if (!threw) { threw = true; throw new Error('boom created listener') } }) @@ -876,9 +1001,10 @@ describe('SessionStore', () => { // The throwing emit must roll the store entry back, not leak it. expect(() => ctx.sessions.create(SessionId('fixed'))).toThrow('boom created listener') expect(ctx.sessions.get(SessionId('fixed'))).toBeUndefined() // rolled back, not leaked + expect(disposed.map(session => session.id)).toEqual(['fixed']) // A subsequent create of the SAME id succeeds (the already-exists check is - // not wedged) and its onAppend is correctly wired (events observable). + // not wedged) and its store-owned observer is correctly wired (events observable). const events: SessionEvent[] = [] ctx.on('session/event', (_session, event) => void events.push(event)) const session = ctx.sessions.create(SessionId('fixed')) @@ -886,6 +1012,59 @@ describe('SessionStore', () => { session.append('user/message', { content: [{ type: 'text', text: 'hi' }], source: { kind: 'user' } }, { surfaceOp: 'append' }) expect(events).toHaveLength(1) }) + + it('observes async session/created rejection without rolling back or starving peers', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + const heard: string[] = [] + ctx.on('session/created', () => Promise.reject(new Error('late creation failure')) as never) + ctx.on('session/created', (session) => { heard.push(session.id) }) + + const session = ctx.sessions.create(SessionId('async-created')) + await Promise.resolve() + await Promise.resolve() + + expect(ctx.sessions.get(session.id)).toBe(session) + expect(heard).toEqual(['async-created']) + expect(warnings).toEqual([ + 'session "async-created": session/created listener rejected: Error: late creation failure', + ]) + }) + + it('contains synchronous and async session/disposed listener failures per observer', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + const hostile = { [Symbol.toPrimitive]() { throw new Error('cannot stringify') } } + const printable = { toString: () => 'printable failure' } + const heard: string[] = [] + ctx.on('session/disposed', () => { throw hostile }) + ctx.on('session/disposed', () => Promise.reject(new Error('async disposed')) as never) + ctx.on('session/disposed', () => { throw printable }) + ctx.on('session/disposed', (session) => { heard.push(session.id) }) + + const unannounced = ctx.sessions.prepare(SessionId('never-announced')) + const detachUnannounced = ctx.sessions.enter(unannounced) + detachUnannounced() + expect(heard).toEqual([]) + + const announced = ctx.sessions.prepare(SessionId('contained-disposal')) + const detach = ctx.sessions.enter(announced) + ctx.sessions.announce(announced) + expect(() => { detach() }).not.toThrow() + await Promise.resolve() + await Promise.resolve() + + expect(heard).toEqual(['contained-disposal']) + expect(warnings).toEqual([ + 'session "contained-disposal": session/disposed listener threw: ', + 'session "contained-disposal": session/disposed listener threw: printable failure', + 'session "contained-disposal": session/disposed listener rejected: Error: async disposed', + ]) + }) }) describe('todo/write event', () => { diff --git a/packages/core/system-prompt/README.md b/packages/core/system-prompt/README.md index 439ebebfc7..dd395b3f88 100644 --- a/packages/core/system-prompt/README.md +++ b/packages/core/system-prompt/README.md @@ -13,10 +13,10 @@ System prompt assembly registry. Plugins contribute ordered text sections, tool- ### Public API -- `ctx.systemPrompt.section(section: PromptSection): () => Promise | void` Contribute a section. The registry snapshots `name`, `order`, and the text value/callback, so later caller-object mutation cannot rename a stored section. The layer is the CALLING context's scope: `agent.ctx` contributes to that agent alone, SHADOWING a same-named global section there (the per-agent persona mechanism — a scoped `deployment:persona`). Duplicate names within one layer throw, and a globally protected section name cannot be shadowed. Disposed with the calling fiber. -- `ctx.systemPrompt.tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void` Contribute tool schemas, evaluated at each assembly with that assembly's context. `ToolProviderResult` = `{ schemas, knownNames? }`: `schemas` is the post-restriction visible set for `context.scope`; `knownNames` (defaulting to the same captured schemas' names) is the pre-restriction universe `toolOrder` validates against. Assembly reads the result, each schema field, and the optional known-name list once before detaching them, rejects non-string schema names/descriptions or known names, and uses those same accepted strings for validation and the model-visible collection. A provider must not return a schema named `TOOL_ORDER_REST`. Scoped providers are consulted only for their scope's assemblies. Disposed with the calling fiber. -- `ctx.systemPrompt.variable(name: string, provider: (context) => string | undefined): () => Promise | void` Contribute a prompt variable, referenced from section text as `{{name}}`. Scoped variables (via `agent.ctx`) shadow a same-named global for that agent. Duplicate-in-layer or unreferenceable names throw; `undefined` means "no value for this assembly". Disposed with the calling fiber. -- `ctx.systemPrompt.protect(protection: PromptProtection): () => Promise | void` Make named section/tool contributions authoritative after the assembly waterfall. Protection restores canonical registry/provider presence and definition; restored entries keep canonical order with one another and anchor before their first surviving later unprotected canonical neighbor (or at the end), without undoing listener reordering of unprotected entries. Canonical absence is authoritative too, so a mode-hidden tool cannot be fabricated by a listener. Calling through `agent.ctx` protects only that agent's assemblies. A global section protection additionally reserves its name against scoped shadows; registering either side of that conflict fails loudly instead of treating the shadow as canonical. Each input array is read once and snapshotted, empty protections throw, and disposal removes the protection. +- `ctx.systemPrompt.section(section: PromptSection): () => Promise | void` Contribute a section. The registry reads `name`, `order`, and the text value/callback once, validates their fixed string/finite-number/string-or-function types, and stores only that accepted record; later caller-object mutation cannot rename or reshape it. The layer is the CALLING context's scope: `agent.ctx` contributes to that agent alone, SHADOWING a same-named global section there (the per-agent persona mechanism — a scoped `deployment:persona`). Duplicate names within one layer throw, and a globally protected section name cannot be shadowed. Disposed with the calling fiber. +- `ctx.systemPrompt.tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void` Contribute tool schemas, evaluated at each assembly with that assembly's context; a non-function provider rejects before effect storage. `ToolProviderResult` = `{ schemas, knownNames? }`: `schemas` is the post-restriction visible set for `context.scope`; `knownNames` (defaulting to the same captured schemas' names) is the pre-restriction universe `toolOrder` validates against. Assembly reads the result, each schema field, and the optional known-name list once before detaching them, rejects non-string schema names/descriptions or known names, and uses those same accepted strings for validation and the model-visible collection. A provider must not return a schema named `TOOL_ORDER_REST`. Scoped providers are consulted only for their scope's assemblies. Disposed with the calling fiber. +- `ctx.systemPrompt.variable(name: string, provider: (context) => string | undefined): () => Promise | void` Contribute a prompt variable, referenced from section text as `{{name}}`. The fixed string name and function provider types reject before effect storage. Scoped variables (via `agent.ctx`) shadow a same-named global for that agent. Duplicate-in-layer or unreferenceable names throw; `undefined` means "no value for this assembly". Disposed with the calling fiber. +- `ctx.systemPrompt.protect(protection: PromptProtection): () => Promise | void` Make named section/tool contributions authoritative after the assembly waterfall. Protection restores canonical registry/provider presence and definition; restored entries keep canonical order with one another and anchor before their first surviving later unprotected canonical neighbor (or at the end), without undoing listener reordering of unprotected entries. Canonical absence is authoritative too, so a mode-hidden tool cannot be fabricated by a listener. Calling through `agent.ctx` protects only that agent's assemblies. A global section protection additionally reserves its name against scoped shadows; registering either side of that conflict fails loudly instead of treating the shadow as canonical. Each optional field and array slot is read once, non-array fields or non-string names reject before effect storage, and the accepted arrays are deduplicated and frozen. Finalization materializes each waterfall-produced entry name once, so a stateful getter cannot evade canonical replacement. Empty protections throw, and disposal removes the protection. - `ctx.systemPrompt.assemble(context?: AssembleContext): Promise` Assemble the prompt for one caller: the global layer merged with `context.scope`'s layer (scoped shadows global). Provider output becomes one coherent detached snapshot before `toolOrder` validation. Runs through the scope-filtered `system-prompt/assemble` waterfall, then restores protected contributions from the pre-waterfall canonical assembly. Rejects when a configured `toolOrder` names a tool outside the providers' `knownNames` universe (a restricted-away KNOWN tool is a normal absence), or when a provider returns the reserved rest-entry name. ### Live events diff --git a/packages/core/system-prompt/src/index.ts b/packages/core/system-prompt/src/index.ts index 8d3cc501a8..b810d07559 100644 --- a/packages/core/system-prompt/src/index.ts +++ b/packages/core/system-prompt/src/index.ts @@ -234,11 +234,41 @@ function orderTools(tools: ToolSchema[], toolOrder: string[] | undefined, knownN name === TOOL_ORDER_REST ? rest : tools.filter(tool => tool.name === name)) } +/** Snapshot one waterfall-produced named entry with a stable, own data `name`. */ +function snapshotNamedEntry(entry: T): { entry: T; name: string } { + // Read the name exactly once before protection matching. The waterfall owns + // its output and may return accessor-backed records; retaining such an entry + // would let a getter answer "unprotected" during filtering and the protected + // name later when a consumer reads the final assembly. + const name = entry.name + const snapshot: Record = {} + Object.defineProperty(snapshot, 'name', { + value: name, + enumerable: true, + configurable: true, + writable: true, + }) + // Copy every other enumerable field once while deliberately skipping name. + // defineProperty keeps a literal "__proto__" extension field ordinary data. + for (const key of Object.keys(entry)) { + if (key === 'name') continue + Object.defineProperty(snapshot, key, { + value: (entry as unknown as Record)[key], + enumerable: true, + configurable: true, + writable: true, + }) + } + return { entry: snapshot as T, name } +} + /** Restore protected named entries from `canonical`, anchored before their next unprotected canonical neighbor. */ function restoreProtected( canonical: readonly T[], result: readonly T[], protectedNames: ReadonlySet, ): T[] { - const restored = result.filter(entry => !protectedNames.has(entry.name)) + const restored = result + .map(snapshotNamedEntry) + .filter(record => !protectedNames.has(record.name)) for (const [index, entry] of canonical.entries()) { if (!protectedNames.has(entry.name)) continue // Protected entries are inserted in canonical order. Anchor each one @@ -251,9 +281,29 @@ function restoreProtected( .map(candidate => candidate.name), ) const next = restored.findIndex(candidate => following.has(candidate.name)) - restored.splice(next < 0 ? restored.length : next, 0, structuredClone(entry)) + restored.splice(next < 0 ? restored.length : next, 0, { + entry: structuredClone(entry), + name: entry.name, + }) } - return restored + return restored.map(record => record.entry) +} + +/** Validate and detach one protection-name array without rereading an element. */ +function snapshotProtectionNames(value: unknown, field: 'sections' | 'tools'): readonly string[] { + if (!Array.isArray(value)) { + throw new TypeError(`systemPrompt.protect() ${field} must be an array of strings`) + } + const names: string[] = [] + const length = value.length + for (let index = 0; index < length; index += 1) { + const name: unknown = value[index] + if (typeof name !== 'string') { + throw new TypeError(`systemPrompt.protect() ${field} must be an array of strings`) + } + names.push(name) + } + return Object.freeze([...new Set(names)]) } /** Lexicographic (code-unit) name comparison — locale-independent, so the order is identical on every machine. */ @@ -433,9 +483,10 @@ export class SystemPrompt extends Service { * `deployment:persona`) unless that global name is protected: global * protection reserves its section name against scoped shadows so the * registration owner—not a later scope—defines the canonical value. The - * registry snapshots `name`, `order`, and `text` before checking/storing, so - * later caller-object mutation cannot rename a contribution. Throws - * if the SAME layer already has the name (a + * registry reads `name`, `order`, and `text` once, validates their fixed + * string/finite-number/string-or-function types, and stores only that + * accepted record, so later caller-object mutation cannot rename or reshape + * a contribution. Throws if the SAME layer already has the name (a * duplicate would silently double prompt text — e.g. a double-loaded tool * plugin; the global-duplicate message names `agent.ctx` as the per-agent * alternative). Removed when the calling fiber is disposed. Emits @@ -446,12 +497,23 @@ export class SystemPrompt extends Service { * yield it directly — exact identity nests the teardown in order. */ section(section: PromptSection): () => Promise | void { - const scope = scopeOf(this.ctx) - const snapshot: PromptSection = { - name: section.name, - order: section.order, - text: section.text, + const input: unknown = section + if (typeof input !== 'object' || input === null) { + throw new TypeError('systemPrompt.section() requires a section object') } + const accepted = input as PromptSection + const name = accepted.name + const order = accepted.order + const text = accepted.text + if (typeof name !== 'string') throw new TypeError('prompt section name must be a string') + if (typeof order !== 'number' || !Number.isFinite(order)) { + throw new TypeError(`prompt section "${name}" order must be a finite number`) + } + if (typeof text !== 'string' && typeof text !== 'function') { + throw new TypeError(`prompt section "${name}" text must be a string or function`) + } + const scope = scopeOf(this.ctx) + const snapshot: PromptSection = { name, order, text } if (scope !== undefined && this.protections.some(record => record.sections?.includes(snapshot.name))) { throw new Error(`prompt section "${snapshot.name}" is globally protected and cannot be shadowed in an agent scope`) } @@ -498,7 +560,8 @@ export class SystemPrompt extends Service { * `schemas`/`knownNames` split). The layer is decided by the calling * context: a scoped provider (registered through `agent.ctx`) is consulted * only for that scope's assemblies. Removed when the calling fiber is - * disposed. A provider must not return a schema named + * disposed. A non-function provider is rejected before any effect is stored. + * A provider must not return a schema named * {@link TOOL_ORDER_REST}; that name is reserved for * {@link Config.toolOrder}'s rest entry and rejects the assembly. Emits * `system-prompt/change`. @@ -508,6 +571,9 @@ export class SystemPrompt extends Service { * yield it directly — exact identity nests the teardown in order. */ tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void { + if (typeof provider !== 'function') { + throw new TypeError('system prompt tool provider must be a function') + } const scope = scopeOf(this.ctx) const dispose = this.ctx.effect(function* (this: SystemPrompt) { const layer = scope === undefined @@ -545,10 +611,11 @@ export class SystemPrompt extends Service { * deployment must not claim facts it does not have). The layer is decided * by the calling context: a scoped variable (registered through * `agent.ctx`) resolves only for that scope's assemblies and SHADOWS a - * same-named global variable there. Throws on a name that does not match - * `[a-z][a-z0-9_]*` (it could never be referenced) or one already - * registered in the SAME layer. Removed when the calling fiber is disposed; - * emits `system-prompt/change` on register/unregister. + * same-named global variable there. The fixed name and callback types are + * validated before effect storage. Throws on a name that does not match + * `[a-z][a-z0-9_]*` (it could never be referenced) or one already registered + * in the SAME layer. Removed when the calling fiber is disposed; emits + * `system-prompt/change` on register/unregister. * @param name - the reference name (matches `[a-z][a-z0-9_]*`). * @param provider - evaluated at every {@link assemble} for the value. * @returns the disposer that removes the variable. The exact @@ -556,11 +623,16 @@ export class SystemPrompt extends Service { * yield it directly — exact identity nests the teardown in order. */ variable(name: string, provider: (context: AssembleContext) => string | undefined): () => Promise | void { + const inputName: unknown = name + if (typeof inputName !== 'string') throw new TypeError('prompt variable name must be a string') + if (!VARIABLE_NAME.test(inputName)) { + throw new Error(`invalid prompt variable name "${inputName}" (must match ${String(VARIABLE_NAME)})`) + } + if (typeof provider !== 'function') { + throw new TypeError(`prompt variable "${inputName}" provider must be a function`) + } const scope = scopeOf(this.ctx) const dispose = this.ctx.effect(function* (this: SystemPrompt) { - if (!VARIABLE_NAME.test(name)) { - throw new Error(`invalid prompt variable name "${name}" (must match ${String(VARIABLE_NAME)})`) - } const layer = scope === undefined ? this.variableProviders : this.scopedVariableProviders.get(scope) ?? (() => { @@ -599,9 +671,13 @@ export class SystemPrompt extends Service { * restored AFTER the whole waterfall, so listener registration order cannot * strip, replace, duplicate, or fabricate it. Canonical absence is restored * too: if the protected name is intentionally absent for an assembly, a - * listener-injected entry with that name is removed. Each input array is - * read once and snapshotted; an empty protection throws because it cannot - * affect output. + * listener-injected entry with that name is removed. Each optional field and + * array slot is read once; non-array fields or non-string names reject before + * effect storage, and the accepted deduplicated arrays are frozen. During + * finalization each waterfall-produced entry name is likewise read once into + * an owned data record, so a stateful getter cannot look unprotected during + * filtering and later impersonate a protected name. An empty protection + * throws because it cannot affect output. * Removed with the calling fiber and emits `system-prompt/change` on * registration/unregistration. A global section protection also reserves the * name against scoped section shadows; registering protection when such a @@ -610,13 +686,24 @@ export class SystemPrompt extends Service { * @returns the exact Cordis effect disposer that removes the protection. */ protect(protection: PromptProtection): () => Promise | void { - const scope = scopeOf(this.ctx) - const sections = protection.sections - const tools = protection.tools - const snapshot: PromptProtection = { - ...sections !== undefined ? { sections: [...new Set(sections)] } : {}, - ...tools !== undefined ? { tools: [...new Set(tools)] } : {}, + const input: unknown = protection + if (typeof input !== 'object' || input === null) { + throw new TypeError('systemPrompt.protect() requires a protection object') } + const accepted = input as PromptProtection + const inputSections = accepted.sections + const inputTools = accepted.tools + const sections = inputSections === undefined + ? undefined + : snapshotProtectionNames(inputSections, 'sections') + const tools = inputTools === undefined + ? undefined + : snapshotProtectionNames(inputTools, 'tools') + const scope = scopeOf(this.ctx) + const snapshot: PromptProtection = Object.freeze({ + ...sections !== undefined ? { sections } : {}, + ...tools !== undefined ? { tools } : {}, + }) if ((snapshot.sections?.length ?? 0) === 0 && (snapshot.tools?.length ?? 0) === 0) { throw new Error('systemPrompt.protect() requires at least one section or tool name') } diff --git a/packages/core/system-prompt/tests/system-prompt.spec.ts b/packages/core/system-prompt/tests/system-prompt.spec.ts index 9eef467a8e..c37ddd9c6c 100644 --- a/packages/core/system-prompt/tests/system-prompt.spec.ts +++ b/packages/core/system-prompt/tests/system-prompt.spec.ts @@ -111,6 +111,86 @@ describe('SystemPrompt', () => { expect(contributed(assembly).map(s => s.text)).toEqual(['first']) }) + it('rejects malformed fixed registration fields before storing an effect', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + const badName = { value: 'name' } + const badText = { value: 'text' } + + expect(() => ctx.systemPrompt.section(null as unknown as Parameters[0])) + .toThrow('requires a section object') + expect(() => ctx.systemPrompt.section(1 as unknown as Parameters[0])) + .toThrow('requires a section object') + expect(() => ctx.systemPrompt.section({ name: badName as unknown as string, order: 1, text: 'x' })) + .toThrow('prompt section name must be a string') + expect(() => ctx.systemPrompt.section({ name: 'bad-order', order: '1' as unknown as number, text: 'x' })) + .toThrow('order must be a finite number') + expect(() => ctx.systemPrompt.section({ name: 'bad-order', order: Number.NaN, text: 'x' })) + .toThrow('order must be a finite number') + expect(() => ctx.systemPrompt.section({ name: 'bad-text', order: 1, text: badText as unknown as string })) + .toThrow('text must be a string or function') + expect(() => ctx.systemPrompt.tools(1 as unknown as Parameters[0])) + .toThrow('tool provider must be a function') + expect(() => ctx.systemPrompt.variable({} as unknown as string, () => 'x')) + .toThrow('prompt variable name must be a string') + expect(() => ctx.systemPrompt.variable('valid', 1 as unknown as Parameters[1])) + .toThrow('provider must be a function') + expect(() => ctx.systemPrompt.protect(null as unknown as Parameters[0])) + .toThrow('requires a protection object') + expect(() => ctx.systemPrompt.protect(1 as unknown as Parameters[0])) + .toThrow('requires a protection object') + expect(() => ctx.systemPrompt.protect({ sections: 'x' as unknown as string[] })) + .toThrow('sections must be an array of strings') + expect(() => ctx.systemPrompt.protect({ tools: 'x' as unknown as string[] })) + .toThrow('tools must be an array of strings') + expect(() => ctx.systemPrompt.protect({ sections: ['ok', {} as unknown as string] })) + .toThrow('sections must be an array of strings') + expect(() => ctx.systemPrompt.protect({ tools: [{} as unknown as string] })) + .toThrow('tools must be an array of strings') + + expect(Object.isFrozen(badName)).toBe(false) + expect(Object.isFrozen(badText)).toBe(false) + expect(contributed(await ctx.systemPrompt.assemble())).toEqual([]) + }) + + it('reads each section field and protection-name slot once at registration', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + const reads = { name: 0, order: 0, text: 0, sections: 0, item: 0 } + const section = Object.defineProperties({}, { + name: { + enumerable: true, + get: () => (++reads.name === 1 ? 'stable' : 42), + }, + order: { + enumerable: true, + get: () => (++reads.order === 1 ? 10 : Number.NaN), + }, + text: { + enumerable: true, + get: () => (++reads.text === 1 ? 'stable text' : null), + }, + }) as unknown as Parameters[0] + const names = new Array(1) + Object.defineProperty(names, 0, { + enumerable: true, + get: () => (++reads.item === 1 ? 'stable' : 'drifted'), + }) + const protection = { + get sections(): string[] { + reads.sections += 1 + return reads.sections === 1 ? names : ['drifted'] + }, + } + + ctx.systemPrompt.section(section) + ctx.systemPrompt.protect(protection) + const assembly = await ctx.systemPrompt.assemble() + + expect(reads).toEqual({ name: 1, order: 1, text: 1, sections: 1, item: 1 }) + expect(assembly.sections).toContainEqual({ name: 'stable', order: 10, text: 'stable text' }) + }) + it('rolls back a section when a system-prompt/change listener throws (P1-1)', async () => { const ctx = new Context() await ctx.plugin(SystemPrompt) @@ -282,6 +362,56 @@ describe('SystemPrompt', () => { expect(assembly.sections).toContainEqual({ name: 'protected', order: 10, text: 'canonical' }) }) + it('materializes waterfall entry names once before restoring protected definitions', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + ctx.systemPrompt.section({ name: 'protected', order: 10, text: 'canonical section' }) + ctx.systemPrompt.tools(() => ({ schemas: [{ name: 'protected', description: 'canonical tool', parameters: {} }] })) + ctx.systemPrompt.protect({ sections: ['protected'], tools: ['protected'] }) + let sectionNameReads = 0 + let toolNameReads = 0 + const hostileSection = { + get name(): string { + sectionNameReads += 1 + return sectionNameReads === 1 ? 'impostor-section' : 'protected' + }, + order: 999, + text: 'listener section', + } + const hostileTool = { + get name(): string { + toolNameReads += 1 + return toolNameReads === 1 ? 'impostor-tool' : 'protected' + }, + description: 'listener tool', + parameters: {}, + } + ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { + const result = await next() + result.sections = [ + ...result.sections.filter(section => section.name !== 'protected'), + hostileSection, + ] + result.tools = [ + ...result.tools.filter(tool => tool.name !== 'protected'), + hostileTool, + ] + return result + }) + + const assembly = await ctx.systemPrompt.assemble() + + expect(sectionNameReads).toBe(1) + expect(toolNameReads).toBe(1) + expect(assembly.sections.map(section => section.name)).toEqual([ + 'harness:identity', + 'deployment:persona', + 'impostor-section', + 'protected', + ]) + expect(assembly.tools.map(tool => tool.name)).toEqual(['impostor-tool', 'protected']) + }) + it('protects canonical absence and rejects an empty protection', async () => { const ctx = new Context() await ctx.plugin(SystemPrompt) diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index 0776ff39f6..74f1ff14c4 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -22,7 +22,7 @@ tools: - `ctx.tools.knownNames(scope?: ScopeKey): string[]` The PRE-restriction end-capability name universe `restrict` validates against: a typo fails loud while a restricted-away tool stays a normal absence. Presentation providers add reserved transport names separately when validating `toolOrder`. - `ctx.tools.schemas(scope?: ScopeKey): ToolSchema[]` Schemas of everything the scope can see (without the `execute` functions). The shipped tools' schemas are catalogued in [docs/tool-catalog.md](../../../docs/tool-catalog.md), generated by booting each tool plugin and harvesting this method (see [the tool-schema-catalog RFC](../../../docs/rfc/implemented/process/2026-07-02-tool-schema-catalog.md)). - `ctx.tools.guard(guard: ToolGuard): () => Promise | void` Register a monotonic synchronous execution guard after `tools/pre-execute`: returning a reason denies the call, while `undefined` leaves it unchanged. A plain-context guard applies globally; an `agent.ctx` guard applies only to that agent. Later waterfall listeners cannot turn a guard denial back into permission. Disposed with the calling fiber. -- `ctx.tools.execute(exec: ToolExecutionInput): Promise` Read each caller-owned top-level field once, snapshot the single-use call into a pipeline-owned execution, assign its opaque correlation token, materialize `arguments` through one lossless-JSON traversal, deep-freeze them, and protect identity before running `tools/pre-execute` → guards → `tools/execute` → `tools/post-execute`; optional `signal` is the only operational field an around-dispatch wrapper may add, replace, or remove. After the required `callId`/`name` correlation identity is captured, the same captured optional fields build the normalized error shell if a later accessor or validation fails, so policy, dispatch, routing, and `tools/result` cannot observe different caller values. Every top-level result field is likewise captured once and the complete result or post-decision is losslessly materialized before final observation. Invalid input—including cloneable mutable exotics—and malformed or non-JSON listener/tool results normalize to `isError` outcomes rather than bypassing policy or failing later at the session log. A throwing `callId` or `name` accessor rejects because no trustworthy result identity exists yet. +- `ctx.tools.execute(exec: ToolExecutionInput): Promise` Read each caller-owned top-level field once, require `callId` and `name` to yield strings, snapshot the single-use call into a pipeline-owned execution, assign its opaque correlation token, materialize `arguments` through one lossless-JSON traversal, deep-freeze them, and protect identity before running `tools/pre-execute` → guards → `tools/execute` → `tools/post-execute`; optional `signal` is the only operational field an around-dispatch wrapper may add, replace, or remove. After the required string correlation identity is captured, the same captured optional fields build the normalized error shell if a later accessor or validation fails, so policy, dispatch, routing, and `tools/result` cannot observe different caller values. Every top-level result field is likewise captured once and the complete result or post-decision is losslessly materialized before final observation. Invalid later input—including cloneable mutable exotics—and malformed or non-JSON listener/tool results normalize to `isError` outcomes rather than bypassing policy or failing later at the session log. A throwing accessor or non-string value in `callId` or `name` rejects before `tools/result` because no trustworthy result identity exists yet. ### Injected services @@ -35,7 +35,7 @@ The live registry pipeline has three transformable waterfalls followed by the ow ### Key types - `ToolDefinition` — `ToolSchema` + `execute(args, exec): Promise` (the bare array is the model-facing content; the object form additionally attaches an opaque, JSON-serializable `meta` presentation payload persisted on the `tool/result` event and handed back to `presentResult`), plus optional `presentCall(args)` / `presentResult(args, result)` for tool-owned UI presentation (see below). It also carries an optional cooperative timeout budget `timeoutMs?: number` (ms) enforced by `@deepseek-ai/dsh-timeout-policy`, never sent to the model. Registration stores a frozen snapshot with detached JSON parameters and once-bound callback identities. -- `ToolExecutionInput` — the caller-supplied call description: `{ callId, name, arguments, agent?, parent?, signal? }`; `arguments` must be losslessly JSON-serializable, and callers may pass an enclosing execution's opaque token as `parent` but never choose the new execution's own token. +- `ToolExecutionInput` — the caller-supplied call description: `{ callId, name, arguments, agent?, parent?, signal? }`; `callId` and `name` must be strings, `arguments` must be losslessly JSON-serializable, and callers may pass an enclosing execution's opaque token as `parent` but never choose the new execution's own token. - `ToolExecutionToken` — a frozen, property-free identity value assigned by the registry. It supports equality correlation only and exposes no live outer execution state. - `ToolExecution` — the pipeline-owned call: immutable `{ token, callId, name, arguments, agent?, parent? }` identity plus optional operational `signal`, which an around wrapper may add, replace, remove, and restore. A nested call's `parent` is a `ToolExecutionToken`, not an execution object. - `ToolExecutionResult` — losslessly JSON-serializable outcome: `{ callId, content, isError, error?, additionalContext?, meta? }`. The registry validates the complete post-policy value before final observation. On failure with a `HarnessError`, `error: { name, code }` carries the structured failure class alongside the model-facing text (the loop forwards it onto the `tool/result` session event for retry/sandbox plugins and replay). `additionalContext` (a `HookContext`) ferries any `tools/post-execute` context up to the loop, which buffers it and appends it as a `context/message` after all `tool/result`s in the step. `meta` is the tool's opaque presentation payload from a successful `execute` (the object return form); the loop forwards it onto the `tool/result` session event for result-card rendering. diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index b466875c75..d757f6cffa 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -951,22 +951,33 @@ export class ToolRegistry extends Service { * Caller-owned arguments are validated and detached in one recursive * lossless-JSON traversal; a violation normalizes to an error before policy * or dispatch. - * @param exec - the single-use call input; every top-level field is read once - * and that identity snapshot is protected before policy runs (and reused by - * the normalized error shell if validation fails). - * @returns the final result after every waterfall. Once the required - * `callId` and `name` correlation identity has been captured, later - * accessor, validation, listener, and tool failures resolve as `isError` - * results rather than rejections. A throwing `callId` or `name` accessor - * rejects because no trustworthy result identity exists yet. + * @param exec - the single-use call input; every top-level field is read once. + * `callId` and `name` must each yield a string before that identity snapshot + * is protected and policy begins. + * @returns the final result after every waterfall. Once the required string + * `callId` and `name` correlation identity has been captured, later accessor, + * validation, listener, and tool failures resolve as `isError` results rather + * than rejections. A throwing accessor or non-string value in either identity + * field rejects because no trustworthy result correlation exists yet. */ async execute(exec: ToolExecutionInput): Promise { // callId/name are the minimum correlation identity needed to construct a - // result at all. Every other caller-controlled accessor is read once - // INSIDE the normalization boundary; if one throws, the error shell uses - // the fields captured before it and never rereads the hostile record. + // result at all. Capture each once, then validate the captured scalar before + // anything can treat it as a trustworthy identity. A JavaScript/casted + // caller that supplies another type rejects at this outer boundary: an error + // result carrying the same malformed value would not satisfy the correlation + // contract and might itself fail lossless-JSON materialization. Every other + // caller-controlled accessor is read once INSIDE the normalization boundary; + // if one throws, the error shell uses the fields captured before it and never + // rereads the hostile record. const callId = exec.callId const name = exec.name + if (typeof callId !== 'string') { + throw new TypeError('tool execution callId must be a string') + } + if (typeof name !== 'string') { + throw new TypeError('tool execution name must be a string') + } let agent: Agent | undefined let parent: ToolExecutionToken | undefined let signal: AbortSignal | undefined diff --git a/packages/core/tools/tests/tools.spec.ts b/packages/core/tools/tests/tools.spec.ts index 5bff94c960..1b83a8f633 100644 --- a/packages/core/tools/tests/tools.spec.ts +++ b/packages/core/tools/tests/tools.spec.ts @@ -7,7 +7,7 @@ import ApprovalService, { type ApprovalOutcome, type ApprovalRequest } from '@de import ToolRegistry, { defineTool, schemaSpecToJsonSchema, validateArgs, ToolArgsError, ToolNotFoundError, type DefineToolOptions, type InferArgs, type SchemaSpec, type PreToolDecision, type PostToolDecision, - type ToolDefinition, type ToolExecution, type ToolExecutionResult, type ToolGuard, + type ToolDefinition, type ToolExecution, type ToolExecutionInput, type ToolExecutionResult, type ToolGuard, } from '@deepseek-ai/dsh-tools' async function setup() { @@ -83,6 +83,95 @@ describe('ToolRegistry', () => { expect(result).toEqual({ callId: CallId('c1'), content: [{ type: 'text', text: 'hi' }], isError: false }) }) + it.each([ + { field: 'callId', value: 1n }, + { field: 'callId', value: 123 }, + { field: 'name', value: 1n }, + { field: 'name', value: 123 }, + ] as const)('rejects a non-string $field before final observation', async ({ field, value }) => { + const ctx = await setup() + let observed = 0 + ctx.on('tools/result', () => { observed += 1 }) + const input: Record = { + callId: CallId('valid-call'), + name: 'missing', + arguments: {}, + } + input[field] = value + + await expect(ctx.tools.execute(input as unknown as ToolExecutionInput)) + .rejects.toThrow(`tool execution ${field} must be a string`) + expect(observed).toBe(0) + }) + + it('reads correlation accessors once and normalizes a later hostile accessor', async () => { + const ctx = await setup() + const reads = { callId: 0, name: 0, arguments: 0 } + let observed: { callId: unknown; name: unknown; isError: boolean } | undefined + ctx.on('tools/result', (exec, result) => { + observed = { callId: exec.callId, name: exec.name, isError: result.isError } + }) + const input = Object.defineProperties({}, { + callId: { + enumerable: true, + get: () => { + reads.callId += 1 + if (reads.callId > 1) throw new Error('callId reread') + return CallId('one-read-call') + }, + }, + name: { + enumerable: true, + get: () => { + reads.name += 1 + if (reads.name > 1) throw new Error('name reread') + return 'missing' + }, + }, + arguments: { + enumerable: true, + get: () => { + reads.arguments += 1 + throw new Error('arguments accessor broke') + }, + }, + }) as unknown as ToolExecutionInput + + const result = await ctx.tools.execute(input) + + expect(reads).toEqual({ callId: 1, name: 1, arguments: 1 }) + expect(result).toMatchObject({ callId: CallId('one-read-call'), isError: true }) + expect(result.content[0]).toMatchObject({ text: 'Error: arguments accessor broke' }) + expect(observed).toEqual({ callId: CallId('one-read-call'), name: 'missing', isError: true }) + }) + + it('reads callId once before a hostile name accessor rejects correlation', async () => { + const ctx = await setup() + const reads = { callId: 0, name: 0 } + let observed = 0 + ctx.on('tools/result', () => { observed += 1 }) + const input = Object.defineProperties({ arguments: {} }, { + callId: { + enumerable: true, + get: () => { + reads.callId += 1 + return CallId('hostile-name') + }, + }, + name: { + enumerable: true, + get: () => { + reads.name += 1 + throw new Error('name accessor broke') + }, + }, + }) as unknown as ToolExecutionInput + + await expect(ctx.tools.execute(input)).rejects.toThrow('name accessor broke') + expect(reads).toEqual({ callId: 1, name: 1 }) + expect(observed).toBe(0) + }) + it('threads a tool-attached meta (object return form) onto the result', async () => { const ctx = await setup() ctx.tools.register({ diff --git a/packages/subagent/subagent-inprocess/README.md b/packages/subagent/subagent-inprocess/README.md index e9f7beb540..e5b40ccfdc 100644 --- a/packages/subagent/subagent-inprocess/README.md +++ b/packages/subagent/subagent-inprocess/README.md @@ -9,11 +9,11 @@ The shared **in-process subagent run driver**. A library with no provider or imp Runs a child as a child [`Agent`](../../core/agent) on the same cordis context (`ctx.agents`): 1. reads every public request and seed field once before asynchronous owner setup: the parent and signal remain identity capabilities, while tool filter, seed, agent options, output schema, and prompt are each materialized by the shared one-pass lossless-JSON snapshot. It computes child depth = `depthOf(parent) + 1`, rejects `request.maxDepth` overflow with `SubagentDepthError`, reports an invalid schema as `OutputSchemaError`, and derives both the child prefix and `seedLength` from the same detached seed; -2. first installs provider ownership, then attaches the request abort listener and creates one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves no child or orphaned listener. Async child creation goes through that fiber's `ctx.agents` service with fresh IDs, lineage/seed, inherited model, and an unpublished setup transaction for persona, tool restriction, and structured output. Parent teardown, provider teardown, and manual `run.dispose()` all dispose this exact node, preventing publication after it becomes inactive and awaiting the same quiescence boundary. `startInProcessRun` still returns its `SubagentRun` immediately: `run.started` resolves only after `ctx.agents.create()` has published the child (and rejects if publication never happens), while cancellation during creation is recorded and applied when a child exists; +2. first installs provider ownership, then attaches the request abort listener and creates one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves no child or orphaned listener. Async child creation goes through that fiber's `ctx.agents` service with fresh IDs, lineage/seed, inherited model, and an unpublished setup transaction for persona, tool restriction, and structured output. Parent teardown, provider teardown, manual `run.dispose()`, and cancellation before readiness all dispose this exact node, preventing publication after it becomes inactive and sharing the same quiescence boundary. `startInProcessRun` still returns its `SubagentRun` immediately: `run.started` resolves only after `ctx.agents.create()` has published the child and rejects when pre-readiness cancellation rolls the transaction back; 3. drives the one-shot: `child.send(prompt)` then `await child.whenIdle()` (ordering matters — `send` enqueues synchronously, so `whenIdle` observes the queued work and resolves on the child's `running → idle` transition, never before the turn starts); there is deliberately NO re-prompt for a structured child that finished cleanly without calling `structured_output` — the shortfall maps to an `error` result for the parent; 4. reads the result, scoped to the child's OWN events (everything at or after `seedLength`, so a seeded child that produced no message of its own never returns the seeded parent's last message): the last `assistant/message` content (deep-cloned — the log is frozen) and the last `turn/end.reason` mapped to a `SubagentStopReason`. A structured run surfaces the captured value as `result.structured`; a structured child that finished cleanly WITHOUT ever capturing settles `error` (a clean finish without the demanded result is a failure, not a success with a missing field). -`SubagentService` waits for `run.started` before emitting `subagent/start`, so a synchronous start observer can resolve the published child with `ctx.agents.get(run.id)`; the result driver awaits the same boundary before sending the prompt. An attempt that never publishes rejects readiness and emits no false start/end pair; its result reports a deliberate cancel/dispose as `aborted` and propagates an infrastructure fault. `dispose()` awaits creation or rollback and then delegates to `AgentHandle.dispose()` (stop and drain → remove agent → detach session → unwind scope); `cancel()` records its request even before publication and cancels the child immediately once available. A cancel landing before any `turn/end` still settles `aborted`, honoring the cancel contract rather than the generic no-turn `error`. +`SubagentService` waits for `run.started` before emitting `subagent/start`, so a synchronous start observer can resolve the published child with `ctx.agents.get(run.id)`; the result driver awaits the same boundary before sending the prompt. An attempt that never publishes rejects readiness and emits no false start/end pair; its result reports a deliberate cancel/dispose as `aborted` and propagates an infrastructure fault. `dispose()` awaits creation or rollback and then delegates to `AgentHandle.dispose()` (stop and drain → remove agent → detach session → unwind scope). Before readiness, `cancel()` deactivates the unpublished owner so no agent, session, or lifecycle event can escape; after readiness it cancels the live child immediately. Either path records the cancellation, so a cancel landing before any `turn/end` settles `aborted`, honoring the cancel contract rather than the generic no-turn `error`. ### `InProcessRunOptions` diff --git a/packages/subagent/subagent-inprocess/src/index.ts b/packages/subagent/subagent-inprocess/src/index.ts index 518ea6a8b4..511b686c13 100644 --- a/packages/subagent/subagent-inprocess/src/index.ts +++ b/packages/subagent/subagent-inprocess/src/index.ts @@ -110,7 +110,10 @@ async function quiesceFiber(fiber: Fiber): Promise { * before the turn starts). The final `assistant/message` is the result output, * the matching `turn/end.reason` the stop reason. `dispose()` delegates to the * factory's {@link AgentHandle.dispose} (stop loop → await quiescence → remove - * session); `cancel()` cancels the child's in-flight turn. + * session). `cancel()` cancels a published child's in-flight turn; before + * readiness it instead deactivates the unpublished run-owner transaction, so + * `started` rejects, no agent/session lifecycle is published, and `result` + * resolves `aborted`. * * Throws {@link SubagentDepthError} before creating anything when the child's * depth (parent depth + 1) would exceed `request.maxDepth`. @@ -219,9 +222,10 @@ export function startInProcessRun( // Install it after provider ownership succeeds but BEFORE awaiting creation, // so an inactive provider cannot leave an orphaned listener and abort/dispose // during async setup is still recorded and applied the moment a child exists. - // `cancelled` records that a cancel was requested at all, so the pre-turn - // cancel window — where the child clears the queued prompt before any - // `turn/end` is logged — settles as `aborted` (honoring the cancel contract) + // `cancelled` records that a cancel was requested at all. Before readiness, + // cancellation deactivates the unpublished run-owner transaction so the + // factory cannot publish an agent or session. After readiness, it cancels the + // live child. Either path settles as `aborted` (honoring the cancel contract) // rather than falling through to the no-turn `error` mapping. let cancelled = false // An accessor, not an inline read: `cancelled` mutates from closures (the @@ -230,13 +234,6 @@ export function startInProcessRun( const isCancelled = (): boolean => cancelled let child: Agent | undefined let handle: AgentHandle | undefined - let disposeRequested = false - const isDisposeRequested = (): boolean => disposeRequested - const requestCancel = (reason: string): void => { - cancelled = true - child?.cancel(reason) - } - const onAbort = (): void => { requestCancel('subagent cancelled') } // One run-owned Cordis fiber is the common ownership node. Install the // provider effect FIRST: a start racing an already-unloading provider fails @@ -250,11 +247,28 @@ export function startInProcessRun( let ownerFiber: (Fiber & PromiseLike) | undefined let ownerSetupError: unknown let ownerDisposing: Promise | undefined - const disposeOwner = (): Promise => (ownerDisposing ??= ownerFiber === undefined - ? Promise.resolve() - : quiesceFiber(ownerFiber)) - let manualDisposeRequested = false - const isManualDisposeRequested = (): boolean => manualDisposeRequested + const disposeOwner = (): Promise => { + if (ownerDisposing !== undefined) return ownerDisposing + // An already-aborted request is observed before the owner fiber is minted. + // Do not memoize that no-op: the post-plugin cancellation check below must + // still be able to claim and deactivate the real fiber. + if (ownerFiber === undefined) return Promise.resolve() + ownerDisposing = quiesceFiber(ownerFiber) + // Pre-readiness cancellation is synchronous fire-and-forget at the public + // `cancel()` boundary. Observe a teardown rejection here; dispose() still + // awaits the same memoized promise and reports it to an explicit caller. + void ownerDisposing.catch(() => undefined) + return ownerDisposing + } + const requestCancel = (reason: string): void => { + cancelled = true + if (child === undefined) { + if (ownerFiber !== undefined) void disposeOwner() + return + } + child.cancel(reason) + } + const onAbort = (): void => { requestCancel('subagent cancelled') } const unlinkProvider = ctx.effect(() => () => { requestCancel('subagent provider disposed') return disposeOwner() @@ -265,6 +279,10 @@ export function startInProcessRun( ownerFiber = parent.ctx.plugin(Object.assign(subagentRunOwner, { inject: ['agents', 'sessions', 'llm', 'tools', 'systemPrompt'], })) + // `signal.aborted` is checked before this fiber exists. Once it does, make + // that recorded cancellation effective immediately; awaiting creation must + // observe an inactive owner instead of reaching the publication boundary. + if (isCancelled()) void disposeOwner() } catch (error: unknown) { ownerSetupError = error } @@ -299,8 +317,6 @@ export function startInProcessRun( }) handle = created child = created.agent - - if (isCancelled()) created.agent.cancel('subagent cancelled') return created.agent })() @@ -322,10 +338,9 @@ export function startInProcessRun( // without manufacturing an unreachable runtime branch. liveChild = child as Agent } catch (error: unknown) { - if (isManualDisposeRequested()) return { output: [], stopReason: 'aborted' } + if (isCancelled()) return { output: [], stopReason: 'aborted' } throw error instanceof Error ? error : new Error('subagent child creation failed with a non-Error value', { cause: error }) } - if (isCancelled() || isDisposeRequested()) return { output: [], stopReason: 'aborted' } liveChild.send(prompt) await liveChild.whenIdle() // Deliberately NO re-prompt when a structured child finishes cleanly @@ -348,8 +363,6 @@ export function startInProcessRun( async dispose(): Promise { return (disposing ??= (async () => { signal?.removeEventListener('abort', onAbort) - disposeRequested = true - manualDisposeRequested = true requestCancel('subagent disposed during creation') // Removing provider ownership and disposing the common run-owner fiber // are the same quiescence transaction; parent disposal may already have diff --git a/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts b/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts index f8e18ed572..cb394d8d95 100644 --- a/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts @@ -269,6 +269,38 @@ describe('startInProcessRun', () => { await expect(run.result).resolves.toEqual({ output: [], stopReason: 'aborted' }) }) + it('observes detached pre-readiness teardown failure and reports it to explicit dispose', async () => { + const { ctx, parent } = await setup([]) + function inertOwner(): void {} + const ownerFiber = ctx.plugin(inertOwner) + await ownerFiber + const disposeFailure = new Error('owner dispose exploded') + const disposeSpy = vi.spyOn(ownerFiber, 'dispose').mockImplementation(() => { throw disposeFailure }) + const rejectingOwnerCtx = { + agents: { create: () => Promise.reject(new Error('creation stopped by cancellation')) }, + } as unknown as Context + const parentWithFailingTeardown = { + options: parent.options, + session: parent.session, + ctx: { + plugin(plugin: (inner: Context) => void) { + plugin(rejectingOwnerCtx) + return ownerFiber + }, + }, + } as unknown as Agent + const run = startInProcessRun(ctx, { + prompt: [{ type: 'text', text: 'must never start' }], + parent: parentWithFailingTeardown, + }, {}) + + run.cancel('cancel before readiness') + await expect(run.result).resolves.toEqual({ output: [], stopReason: 'aborted' }) + await expect(run.dispose()).rejects.toBe(disposeFailure) + disposeSpy.mockRestore() + await ownerFiber.dispose() + }) + it('does not attach an abort listener when provider ownership is already inactive', async () => { const { ctx, parent } = await setup([]) let providerCtx: Context | undefined diff --git a/packages/subagent/subagent-spawn/README.md b/packages/subagent/subagent-spawn/README.md index e411d44ab0..07c237b303 100644 --- a/packages/subagent/subagent-spawn/README.md +++ b/packages/subagent/subagent-spawn/README.md @@ -6,7 +6,7 @@ The run mechanics live in the shared [`@deepseek-ai/dsh-subagent-inprocess`](../ ## What it does -`start(request)` delegates to `startInProcessRun(ctx, request, {})` with no seed: a fresh child agent with the parent's `cwd`/`parentSession` lineage and (by default) the parent's model. The driver creates one run-owner fiber under `parent.ctx`; parent teardown, this provider's teardown, and manual disposal all converge there before child publication. Its `run.started` boundary resolves only after the fresh child is published, so `subagent/start` observers see a live registry entry. See the [driver README](../subagent-inprocess/README.md) for the full lifecycle (depth check, one-shot drive, result read, dispose). +`start(request)` delegates to `startInProcessRun(ctx, request, {})` with no seed: a fresh child agent with the parent's `cwd`/`parentSession` lineage and (by default) the parent's model. The driver creates one run-owner fiber under `parent.ctx`; parent teardown, this provider's teardown, manual disposal, and cancellation before readiness all converge there before child publication. Its `run.started` boundary resolves only after the fresh child is published, so `subagent/start` observers see a live registry entry; a same-tick cancel deactivates the unpublished transaction instead, rejects readiness, resolves the result as `aborted`, and emits no agent/session or subagent lifecycle. See the [driver README](../subagent-inprocess/README.md) for the full lifecycle (depth check, one-shot drive, result read, dispose). ## Capabilities diff --git a/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts b/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts index 3d23fca285..f00eddeb25 100644 --- a/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts +++ b/packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts @@ -163,20 +163,31 @@ describe('dsh-subagent-spawn', () => { await run.dispose() }) - it('cancelling BEFORE the child turn starts settles aborted, not error', async () => { - // Regression: a cancel landing in the pre-turn window clears the queued - // prompt before any `turn/end` is logged. Deriving the stop reason from - // `turn/end` alone then mis-maps the no-turn case to `error`; the run must - // honor the cancel contract and settle `aborted`. The cancel is synchronous - // (same tick as start, before the loop's queued-wait continuation runs), so - // the turn is dropped and the empty script is never consumed. + it('same-tick cancellation rejects readiness and prevents child publication', async () => { + // Regression: cancellation before readiness used to set a flag but let the + // async factory publish a child anyway, so `started` fulfilled and lifecycle + // observers saw an agent for an attempt the caller had already cancelled. + // The empty script also proves no model turn can run. const { ctx, parent } = await setup([]) + const beforeAgents = ctx.agents.list().length + const beforeSessions = ctx.sessions.list().length + const published: string[] = [] + ctx.on('session/created', () => void published.push('session/created')) + ctx.on('agent/created', () => void published.push('agent/created')) + ctx.on('agent/session-start', () => void published.push('agent/session-start')) + ctx.on('subagent/start', () => void published.push('subagent/start')) + ctx.on('subagent/end', () => void published.push('subagent/end')) const run = ctx.subagents.start('spawn', { prompt: [{ type: 'text', text: 'p' }], parent }) run.cancel('early') - const result = await run.result - expect(result.stopReason).toBe('aborted') - expect(result.output).toEqual([]) + + await expect(run.started).rejects.toThrow() + await expect(run.result).resolves.toEqual({ output: [], stopReason: 'aborted' }) await run.dispose() + await Promise.resolve() + expect(ctx.agents.get(run.id)).toBeUndefined() + expect(ctx.agents.list()).toHaveLength(beforeAgents) + expect(ctx.sessions.list()).toHaveLength(beforeSessions) + expect(published).toEqual([]) }) it('a cancel from agent/queued maps a no-turn child log to aborted', async () => { diff --git a/packages/subagent/subagent/README.md b/packages/subagent/subagent/README.md index b068cfe79d..7e63f07376 100644 --- a/packages/subagent/subagent/README.md +++ b/packages/subagent/subagent/README.md @@ -18,23 +18,23 @@ Unlike the bash seam (one executor per context, second load throws), **multiple | Member | Semantics | |---|---| -| `registerProvider(provider)` | Register a frozen acceptance snapshot under `provider.name`; later caller mutation cannot change registry behavior or HMR cleanup, while `start` stays bound to the original provider receiver. Throws `SubagentError('DUPLICATE_PROVIDER')` on a name clash. Effect-scoped (HMR-safe); returns the disposer. | +| `registerProvider(provider)` | Read and validate the name, capability object and four boolean flags, `inheritsParentContext`, and `start` callback exactly once, then register a frozen acceptance snapshot under the accepted name. Malformed fixed fields fail loud before registration; later caller mutation cannot change registry behavior or HMR cleanup, while `start` stays bound to the original provider receiver. Throws `SubagentError('DUPLICATE_PROVIDER')` on a name clash. Effect-scoped (HMR-safe); returns the disposer. | | `getProvider(name)` | Look up the frozen registry snapshot (`undefined` if absent). | | `list()` | Registered provider names (insertion order). | -| `start(name, request)` | Resolve the provider (`NO_PROVIDER` if absent), read every caller field once into one acceptance snapshot, validate every requested START-TIME capability and scalar value before any child is created, and materialize prompt/schema/options/filter data through a single-pass lossless-JSON snapshot before delegating to `provider.start`. Return a frozen service-owned run wrapper whose provider fields are captured once, whose methods remain bound to the provider handle, and whose `result` is one detached, deeply frozen normalization shared by the caller and telemetry. Emit `subagent/start` only after `run.started` fulfills and the paired `subagent/end` after that started run settles; a pre-publication readiness rejection emits neither. | +| `start(name, request)` | Resolve the provider (`NO_PROVIDER` if absent), read every caller field once into one acceptance snapshot, validate every requested START-TIME capability and scalar value before any child is created, and materialize prompt/schema/options/filter data through a single-pass lossless-JSON snapshot before delegating to `provider.start`. Acquire and memoize the provider run's disposer before reading the rest of its handle, then return a frozen service-owned wrapper whose fields are captured once, whose methods remain bound to the provider handle, and whose `result` is one detached, deeply frozen normalization shared by the caller and telemetry. Malformed handle access/binding starts rollback before the synchronous fault escapes; malformed terminal data rejects only after rollback reaches quiescence. Emit `subagent/start` only after `run.started` fulfills and the paired `subagent/end` after that started run settles; a pre-publication readiness rejection emits neither. | ## Capabilities: two kinds, discovered two ways - **Start-time features** (`outputSchema`, `depthLimit`, `toolFilter/persona`) are a static `provider.capabilities` descriptor, checked by the service BEFORE a run exists. A request that needs one the provider lacks is **rejected loud** (`UNSUPPORTED_CAPABILITY`), never accepted-then-ignored. - **Runtime features** (steering, resume) are **optional methods** on `SubagentRun` (`sendMessage?`, `resume?`). The method's presence IS the capability; TS narrowing is the discovery mechanism — a consumer cannot call an absent method without narrowing first, so there is no silent degradation path. -Beside `capabilities` sits one DESCRIPTIVE fact, not validated by the service: `provider.inheritsParentContext` — whether a child sees the parent conversation (`fork`: true — seeded with the completed-turn prefix; `spawn`/`acp`: false). The model-facing consumer (`dsh-tool-subagent`) derives truthful tool wording from it. +Beside `capabilities` sits one DESCRIPTIVE fact: `provider.inheritsParentContext` — whether a child sees the parent conversation (`fork`: true — seeded with the completed-turn prefix; `spawn`/`acp`: false). The service validates that the descriptor is a boolean but does not interpret or enforce its meaning; the model-facing consumer (`dsh-tool-subagent`) derives truthful tool wording from it. ## Run lifecycle `provider.start(request)` returns a provider-owned `SubagentRun`; `SubagentService.start` captures that handle once and returns a frozen service-owned wrapper with `started` (the publication/readiness promise), a normalized `result` (the terminal outcome), bound `cancel()` and `dispose()`, and bound optional runtime methods. `started` resolves only after the provider has established a real child and rejects if the attempt fails or is cancelled first. `result` resolves with one detached, deeply frozen `SubagentResult` (`output`, optional `structured`, `stopReason`) that the service and caller share — it does **not** reject on a child-level failure (a model/transport failure resolves with `stopReason: 'error'`), but malformed provider data rejects as an infrastructure contract fault. The consumer maps a non-`completed` reason to an `isError` tool result and MUST `dispose()` on every path (success, error, abort) to reach child quiescence and avoid leaking an idle child / session. -The service also announces provider lifecycle: `subagent/provider-added` (the frozen registry snapshot) fires after a registration and `subagent/provider-removed` (the accepted name) after an unregistration, so a consumer deriving state from a named provider (the model-facing tool wording) mirrors registry membership instead of assuming load order — the cordis Loader starts sibling plugins concurrently, so "listed earlier" does not mean "registered earlier". Run lifecycle is gated by provider readiness: the service captures the provider handle's public fields once, `subagent/start` (payload `SubagentRunInfo`) fires only after the accepted `started` promise fulfills, and `subagent/end` (payload `SubagentRunEndInfo`) uses the same accepted id and normalized result; readiness rejection emits neither. For spawn/fork, the start listener can resolve the published child via `ctx.agents.get(info.id)`; a remote provider need not have a local registry entry. Both events are **observe-only** plain emits whose service-owned payloads are deeply frozen before per-listener dispatch. The service observes the normalized `result` immediately even while readiness is pending and buffers that end payload until start has fired; a malformed provider result rejects the returned result promise and becomes contained `error` telemetry, a rejection cannot become an unhandled detached promise, start always precedes end, and one listener cannot corrupt either the caller or later listeners. `subagent/end` carries the same frozen output as `lastAssistantMessage` on a valid settle path and omits it on infrastructure or result-contract failure. Any run-affecting decision is out of scope for this observe-only surface. +The service also announces provider lifecycle: `subagent/provider-added` (the frozen registry snapshot) fires after a registration and `subagent/provider-removed` (the accepted name) after an unregistration, so a consumer deriving state from a named provider (the model-facing tool wording) mirrors registry membership instead of assuming load order — the cordis Loader starts sibling plugins concurrently, so "listed earlier" does not mean "registered earlier". Run lifecycle is gated by provider readiness: the service captures the provider handle's public fields once, `subagent/start` (payload `SubagentRunInfo`) fires only after the accepted `started` promise fulfills, and `subagent/end` (payload `SubagentRunEndInfo`) uses the same accepted id and normalized result; readiness rejection emits neither. For spawn/fork, the start listener can resolve the published child via `ctx.agents.get(info.id)`; a remote provider need not have a local registry entry. Both events are **observe-only** plain emits whose service-owned payloads are deeply frozen before per-listener dispatch. A synchronous listener throw or returned-promise rejection is logged per listener; later listeners still run synchronously, and async listeners remain concurrent fire-and-forget. The service observes the normalized `result` immediately even while readiness is pending and buffers that end payload until start has fired; a malformed provider result rejects the returned result promise and becomes contained `error` telemetry, a rejection cannot become an unhandled detached promise, start always precedes end, and one listener cannot corrupt either the caller or later listeners. `subagent/end` carries the same frozen output as `lastAssistantMessage` on a valid settle path and omits it on infrastructure or result-contract failure. Any run-affecting decision is out of scope for this observe-only surface. ## Scope (first cut) diff --git a/packages/subagent/subagent/src/index.ts b/packages/subagent/subagent/src/index.ts index de376686fd..b319a7f31d 100644 --- a/packages/subagent/subagent/src/index.ts +++ b/packages/subagent/subagent/src/index.ts @@ -169,9 +169,11 @@ export class SubagentService extends Service { * Register a provider under its `provider.name`. Throws {@link SubagentError} * (`DUPLICATE_PROVIDER`) if the name is already taken. The registry snapshots * the name, static descriptors, and `start` callback identity at acceptance; - * later caller mutation cannot change lookup, capability validation, consumer - * wording, dispatch, or HMR cleanup. The callback remains bound to the - * original provider object, so provider-owned mutable state stays live. + * every fixed field and capability flag is read once and validated before + * registration, so malformed provider objects fail loud without entering the + * registry. Later caller mutation cannot change lookup, capability validation, + * consumer wording, dispatch, or HMR cleanup. The callback remains bound to + * the original provider object, so provider-owned mutable state stays live. * Effect-scoped: disposed with the calling fiber (HMR-safe). Emits * `subagent/provider-added` after the registration and * `subagent/provider-removed` on unregistration, so consumers can mirror @@ -187,18 +189,49 @@ export class SubagentService extends Service { // mutate or reuse the provider object before its old fiber unloads. Binding // preserves the provider method's receiver while making replacement of the // public callback field after registration inert. - const inputCapabilities = provider.capabilities + const name: unknown = provider.name + const inputCapabilities: unknown = provider.capabilities + const inheritsParentContext: unknown = provider.inheritsParentContext + // eslint-disable-next-line @typescript-eslint/unbound-method + const inputStart: unknown = provider.start + if (typeof name !== 'string') { + throw new TypeError('subagent provider name must be a string') + } + if (inputCapabilities === null || typeof inputCapabilities !== 'object' || Array.isArray(inputCapabilities)) { + throw new TypeError(`subagent provider "${name}" capabilities must be an object`) + } + const inputCapabilityFields = inputCapabilities as Record + const outputSchema = inputCapabilityFields.outputSchema + const depthLimit = inputCapabilityFields.depthLimit + const toolFilter = inputCapabilityFields.toolFilter + const persona = inputCapabilityFields.persona + for (const [capability, value] of [ + ['outputSchema', outputSchema], + ['depthLimit', depthLimit], + ['toolFilter', toolFilter], + ['persona', persona], + ] as const) { + if (typeof value !== 'boolean') { + throw new TypeError(`subagent provider "${name}" capability "${capability}" must be a boolean`) + } + } + if (typeof inheritsParentContext !== 'boolean') { + throw new TypeError(`subagent provider "${name}" inheritsParentContext must be a boolean`) + } + if (typeof inputStart !== 'function') { + throw new TypeError(`subagent provider "${name}" start must be a function`) + } const capabilities: SubagentCapabilities = Object.freeze({ - outputSchema: inputCapabilities.outputSchema, - depthLimit: inputCapabilities.depthLimit, - toolFilter: inputCapabilities.toolFilter, - persona: inputCapabilities.persona, + outputSchema: outputSchema as boolean, + depthLimit: depthLimit as boolean, + toolFilter: toolFilter as boolean, + persona: persona as boolean, }) const snapshot: SubagentProvider = Object.freeze({ - name: provider.name, + name, capabilities, - inheritsParentContext: provider.inheritsParentContext, - start: provider.start.bind(provider), + inheritsParentContext, + start: Function.prototype.bind.call(inputStart, provider) as SubagentProvider['start'], }) const dispose = this.ctx.effect(function* (this: SubagentService) { if (this.providers.has(snapshot.name)) { @@ -255,7 +288,10 @@ export class SubagentService extends Service { * {@link SubagentProvider.start}. The returned handle is a service-owned, * frozen wrapper: provider fields are captured once, methods stay bound to the * provider handle, and `result` resolves to one detached, deeply frozen value - * shared by the caller and lifecycle telemetry. Emits `subagent/start` / + * shared by the caller and lifecycle telemetry. Once a provider returns a + * callable disposer, malformed handle access/binding starts rollback before + * the synchronous fault escapes; malformed terminal data rejects only after + * that same memoized disposal reaches quiescence. Emits `subagent/start` / * `subagent/end` only after the run's readiness boundary fulfills. A provider * that fails before establishing a child emits neither event. * @param name - the provider to run on. @@ -324,82 +360,176 @@ export class SubagentService extends Service { ...toolFilter !== undefined ? { toolFilter } : {}, ...input.persona !== undefined ? { persona: input.persona } : {}, } - const providerRun = provider.start(accepted) + const providerRun: unknown = provider.start(accepted) + if (providerRun === null || (typeof providerRun !== 'object' && typeof providerRun !== 'function')) { + throw new TypeError(`subagent provider "${name}" start must return a SubagentRun object`) + } + const acceptedRun = providerRun as SubagentRun + // Acquire the one rollback capability BEFORE touching any other provider-run + // field. Once start() returned a handle, the service owns an accepted live + // attempt; a hostile later accessor or bind must not make that attempt + // unreachable. The wrapper also memoizes provider disposal, so automatic + // rollback and a racing caller join one quiescence transaction even if a + // contract-violating provider forgot to make its own method idempotent. + // eslint-disable-next-line @typescript-eslint/unbound-method + const inputDispose = acceptedRun.dispose + if (typeof inputDispose !== 'function') { + throw new TypeError(`subagent provider "${name}" run dispose must be a function`) + } + let disposal: Promise | undefined + const dispose = (): Promise => { + if (disposal === undefined) { + try { + // Invoke through the captured callable without reading its public + // `bind`/`length`/`name` properties. Disposal is the recovery + // capability itself; hostile function metadata must not prevent the + // seam from exercising it when a later handle field is malformed. + disposal = Promise.resolve(Reflect.apply(inputDispose, acceptedRun, [])) + } catch (error: unknown) { + disposal = Promise.reject(error instanceof Error + ? error + : new Error('subagent provider run dispose threw a non-Error value', { cause: error })) + } + } + return disposal + } // Provider-owned run objects can be accessor-backed too. Capture every // public field exactly once, bind methods to the provider's original handle, // and expose only this service-owned wrapper. The normalized result promise // is also the one lifecycle telemetry observes, so the caller and observers // cannot receive different values from stateful accessors. - const id = providerRun.id - const started = providerRun.started - const providerResult = providerRun.result - const cancel = providerRun.cancel.bind(providerRun) - const sendMessage = providerRun.sendMessage?.bind(providerRun) - const dispose = providerRun.dispose.bind(providerRun) - const resume = providerRun.resume?.bind(providerRun) - const result = providerResult.then(value => this.snapshotRunResult(value)) - const run: SubagentRun = Object.freeze({ - id, - started, - result, - cancel, - dispose, - ...sendMessage === undefined - ? {} - : { sendMessage }, - ...resume === undefined - ? {} - : { resume }, - }) - - // Observe result settlement IMMEDIATELY, before waiting on readiness. A - // provider may fail both promises in the same turn; deferring the rejection - // handler until `started` fulfilled would leave `result` transiently - // unhandled. The settled event is buffered until start has been announced, - // preserving start → end order even for an already-settled scripted run. - let readiness: 'pending' | 'started' | 'failed' = 'pending' - let pendingEnd: SubagentRunEndInfo | undefined - const deliverEnd = (info: SubagentRunEndInfo): void => { - if (readiness === 'started') this.emitLifecycle('subagent/end', info, parent) - else if (readiness === 'pending') pendingEnd = info - // A pre-publication readiness failure has no lifecycle pair; result - // remains observable by the run's consumer, but telemetry must not claim - // that a child started. - } - void result.then( - (value) => { - deliverEnd({ - provider: name, - id, - stopReason: value.stopReason, - lastAssistantMessage: value.output, - }) - }, - () => { deliverEnd({ provider: name, id, stopReason: 'error' }) }, - ) - - // Readiness is the publication boundary owned by the provider. For - // in-process runs, fulfillment means the agent registry already contains - // `run.id`; for ACP it means the remote session exists. Emit start with - // per-listener containment, then flush an outcome that settled unusually - // early. A readiness rejection is handled here and deliberately emits no - // false start/end pair; the result path above remains independently handled. - void started.then( - () => { - readiness = 'started' - this.emitLifecycle('subagent/start', { provider: name, id }, parent) - if (pendingEnd !== undefined) { - const info = pendingEnd - pendingEnd = undefined - this.emitLifecycle('subagent/end', info, parent) + try { + const id = acceptedRun.id + if (typeof id !== 'string') { + throw new TypeError(`subagent provider "${name}" run id must be a string`) + } + const started = acceptedRun.started + if (!(started instanceof Promise)) { + throw new TypeError(`subagent provider "${name}" run started must be a Promise`) + } + // Observe each accepted provider promise before reading the next hostile + // field. A later accessor/validation failure prevents a wrapper from being + // returned, but must not leave an already-rejected provider promise + // unhandled while rollback proceeds. + void started.catch(() => undefined) + const providerResult = acceptedRun.result + if (!(providerResult instanceof Promise)) { + throw new TypeError(`subagent provider "${name}" run result must be a Promise`) + } + void providerResult.catch(() => undefined) + // eslint-disable-next-line @typescript-eslint/unbound-method + const inputCancel = acceptedRun.cancel + if (typeof inputCancel !== 'function') { + throw new TypeError(`subagent provider "${name}" run cancel must be a function`) + } + // eslint-disable-next-line @typescript-eslint/unbound-method + const inputSendMessage = acceptedRun.sendMessage + if (inputSendMessage !== undefined && typeof inputSendMessage !== 'function') { + throw new TypeError(`subagent provider "${name}" run sendMessage must be a function when provided`) + } + // eslint-disable-next-line @typescript-eslint/unbound-method + const inputResume = acceptedRun.resume + if (inputResume !== undefined && typeof inputResume !== 'function') { + throw new TypeError(`subagent provider "${name}" run resume must be a function when provided`) + } + const cancel = Function.prototype.bind.call(inputCancel, acceptedRun) as SubagentRun['cancel'] + const sendMessage = inputSendMessage === undefined + ? undefined + : Function.prototype.bind.call(inputSendMessage, acceptedRun) as NonNullable + const resume = inputResume === undefined + ? undefined + : Function.prototype.bind.call(inputResume, acceptedRun) as NonNullable + const result = providerResult.then(async (value) => { + try { + return this.snapshotRunResult(value) + } catch (error: unknown) { + // A malformed terminal value is an infrastructure contract fault. The + // result rejects only after the accepted provider attempt has reached + // quiescence, so a caller cannot lose the only cleanup handle by merely + // observing the normalization failure. + await this.rollbackProviderRun(name, dispose) + throw error } - }, - () => { - readiness = 'failed' - pendingEnd = undefined - }, - ) - return run + }) + const run: SubagentRun = Object.freeze({ + id, + started, + result, + cancel, + dispose, + ...sendMessage === undefined + ? {} + : { sendMessage }, + ...resume === undefined + ? {} + : { resume }, + }) + + // Observe result settlement IMMEDIATELY, before waiting on readiness. A + // provider may fail both promises in the same turn; deferring the rejection + // handler until `started` fulfilled would leave `result` transiently + // unhandled. The settled event is buffered until start has been announced, + // preserving start → end order even for an already-settled scripted run. + let readiness: 'pending' | 'started' | 'failed' = 'pending' + let pendingEnd: SubagentRunEndInfo | undefined + const deliverEnd = (info: SubagentRunEndInfo): void => { + if (readiness === 'started') this.emitLifecycle('subagent/end', info, parent) + else if (readiness === 'pending') pendingEnd = info + // A pre-publication readiness failure has no lifecycle pair; result + // remains observable by the run's consumer, but telemetry must not claim + // that a child started. + } + void result.then( + (value) => { + deliverEnd({ + provider: name, + id, + stopReason: value.stopReason, + lastAssistantMessage: value.output, + }) + }, + () => { deliverEnd({ provider: name, id, stopReason: 'error' }) }, + ) + + // Readiness is the publication boundary owned by the provider. For + // in-process runs, fulfillment means the agent registry already contains + // `run.id`; for ACP it means the remote session exists. Emit start with + // per-listener containment, then flush an outcome that settled unusually + // early. A readiness rejection is handled here and deliberately emits no + // false start/end pair; the result path above remains independently handled. + void started.then( + () => { + readiness = 'started' + this.emitLifecycle('subagent/start', { provider: name, id }, parent) + if (pendingEnd !== undefined) { + const info = pendingEnd + pendingEnd = undefined + this.emitLifecycle('subagent/end', info, parent) + } + }, + () => { + readiness = 'failed' + pendingEnd = undefined + }, + ) + return run + } catch (error: unknown) { + // start() has already transferred a live attempt to the seam. Begin + // rollback synchronously before surfacing the malformed-handle failure; + // the contained cleanup promise prevents either a resource leak or an + // unhandled rejection even though this API cannot synchronously await it. + void this.rollbackProviderRun(name, dispose) + throw error + } + } + + /** Dispose one malformed provider attempt without letting cleanup mask the contract fault. */ + private async rollbackProviderRun(providerName: string, dispose: () => Promise): Promise { + try { + await dispose() + } catch (error: unknown) { + this.ctx.logger.warn(`subagent provider "${providerName}" malformed run rollback failed: ${renderThrown(error)}`) + } } /** Normalize one provider result into the immutable seam value. */ @@ -452,10 +582,12 @@ export class SubagentService extends Service { /** * Emit a `subagent/*` lifecycle event with PER-LISTENER containment: dispatch - * each subscriber individually and log (never propagate) a thrown one, so one - * bad subscriber can neither strand the already-live run, surface as an - * unhandled rejection on the detached settle hook, NOR starve the listeners - * registered after it. A single try/catch around `ctx.emit` would not do the + * each subscriber individually and log (never propagate) either a synchronous + * throw or a returned-promise rejection, so one bad subscriber can neither + * strand the already-live run, surface as an unhandled rejection on the + * detached settle hook, NOR starve the listeners registered after it. Async + * listeners remain concurrent fire-and-forget; dispatch does not await or + * serialize them. A single try/catch around `ctx.emit` would not do the * last part — cordis `emit` runs listeners in a `.map(cb => cb())` that halts * on the first throw — so this resolves the listener callbacks via * `ctx.events.dispatch` and contains each call, the same guarantee @@ -488,7 +620,14 @@ export class SubagentService extends Service { : [scopeTarget(this, parent), name, acceptedInfo] for (const callback of this.ctx.events.dispatch('emit', dispatchArgs)) { try { - callback(acceptedInfo) + const returned: unknown = callback(acceptedInfo) + // Plain emits remain fire-and-forget and every callback is still invoked + // synchronously in this loop. Observe a returned promise independently so + // an async listener rejection is contained without serializing listeners + // or delaying provider/run lifecycle. + void Promise.resolve(returned).catch((error: unknown) => { + this.ctx.logger.warn(`subagent: ${name} listener rejected: ${renderThrown(error)}`) + }) } catch (error: unknown) { this.ctx.logger.warn(`subagent: ${name} listener threw: ${renderThrown(error)}`) } diff --git a/packages/subagent/subagent/tests/service.spec.ts b/packages/subagent/subagent/tests/service.spec.ts index ba4b58c2fc..d1a531ca09 100644 --- a/packages/subagent/subagent/tests/service.spec.ts +++ b/packages/subagent/subagent/tests/service.spec.ts @@ -150,6 +150,93 @@ describe('SubagentService', () => { } }) + it.each([ + { label: 'a non-string name', patch: { name: 42 }, message: 'name must be a string' }, + { label: 'null capabilities', patch: { capabilities: null }, message: 'capabilities must be an object' }, + { label: 'primitive capabilities', patch: { capabilities: 42 }, message: 'capabilities must be an object' }, + { label: 'array capabilities', patch: { capabilities: [] }, message: 'capabilities must be an object' }, + { + label: 'a non-boolean outputSchema capability', + patch: { capabilities: { ...NO_CAPS, outputSchema: 'yes' } }, + message: 'capability "outputSchema" must be a boolean', + }, + { + label: 'a non-boolean depthLimit capability', + patch: { capabilities: { ...NO_CAPS, depthLimit: 'yes' } }, + message: 'capability "depthLimit" must be a boolean', + }, + { + label: 'a non-boolean toolFilter capability', + patch: { capabilities: { ...NO_CAPS, toolFilter: 'yes' } }, + message: 'capability "toolFilter" must be a boolean', + }, + { + label: 'a non-boolean persona capability', + patch: { capabilities: { ...NO_CAPS, persona: 'yes' } }, + message: 'capability "persona" must be a boolean', + }, + { label: 'a non-boolean context descriptor', patch: { inheritsParentContext: 'yes' }, message: 'inheritsParentContext must be a boolean' }, + { label: 'a non-callable start field', patch: { start: 42 }, message: 'start must be a function' }, + ])('rejects a provider registration with $label before entering the registry', async ({ patch, message }) => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const provider = Object.assign(new StubProvider('invalid'), patch) + + expect(() => ctx.subagents.registerProvider(provider as unknown as SubagentProvider)).toThrow(message) + expect(ctx.subagents.list()).toEqual([]) + expect(Object.isFrozen(provider)).toBe(false) + }) + + it('reads every registration field once and binds the accepted start callback to the provider', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const reads = { + name: 0, + capabilities: 0, + outputSchema: 0, + depthLimit: 0, + toolFilter: 0, + persona: 0, + inheritsParentContext: 0, + start: 0, + } + const capabilities = Object.defineProperties({}, { + outputSchema: { enumerable: true, get: () => { reads.outputSchema += 1; return false } }, + depthLimit: { enumerable: true, get: () => { reads.depthLimit += 1; return false } }, + toolFilter: { enumerable: true, get: () => { reads.toolFilter += 1; return false } }, + persona: { enumerable: true, get: () => { reads.persona += 1; return false } }, + }) as SubagentCapabilities + const acceptedStart = function (this: SubagentProvider, request: SubagentStartRequest): SubagentRun { + expect(this).toBe(provider) + return { + id: AgentId(`one-read:${request.parent.id}`), + started: Promise.resolve(), + result: Promise.resolve({ output: [], stopReason: 'completed' }), + cancel() {}, + async dispose() {}, + } + } + const provider = Object.defineProperties({}, { + name: { enumerable: true, get: () => { reads.name += 1; return 'one-read' } }, + capabilities: { enumerable: true, get: () => { reads.capabilities += 1; return capabilities } }, + inheritsParentContext: { enumerable: true, get: () => { reads.inheritsParentContext += 1; return false } }, + start: { enumerable: true, get: () => { reads.start += 1; return acceptedStart } }, + }) as SubagentProvider + + ctx.subagents.registerProvider(provider) + await expect(ctx.subagents.start('one-read', baseRequest()).result).resolves.toMatchObject({ stopReason: 'completed' }) + expect(reads).toEqual({ + name: 1, + capabilities: 1, + outputSchema: 1, + depthLimit: 1, + toolFilter: 1, + persona: 1, + inheritsParentContext: 1, + start: 1, + }) + }) + it('unregisters a provider when its owning fiber is disposed (HMR safety)', async () => { const ctx = new Context() await ctx.plugin(SubagentService) @@ -608,6 +695,178 @@ describe('SubagentService', () => { }) }) + it.each([ + { label: 'a non-string id', field: 'id', value: 42, message: 'run id must be a string' }, + { label: 'a non-Promise started field', field: 'started', value: undefined, message: 'run started must be a Promise' }, + { label: 'a non-Promise result field', field: 'result', value: undefined, message: 'run result must be a Promise' }, + { label: 'a non-callable cancel field', field: 'cancel', value: undefined, message: 'run cancel must be a function' }, + { label: 'a non-callable sendMessage field', field: 'sendMessage', value: 42, message: 'run sendMessage must be a function' }, + { label: 'a non-callable resume field', field: 'resume', value: 42, message: 'run resume must be a function' }, + ])('rolls back a provider run with $label', async ({ field, value, message }) => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const providerDispose = vi.fn(async () => {}) + const providerRun = { + id: AgentId('invalid-handle-child'), + started: Promise.resolve(), + result: Promise.resolve({ output: [], stopReason: 'completed' } satisfies SubagentResult), + cancel() {}, + dispose: providerDispose, + [field]: value, + } as unknown as SubagentRun + ctx.subagents.registerProvider({ + name: 'invalid-handle', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: () => providerRun, + }) + + expect(() => ctx.subagents.start('invalid-handle', baseRequest())).toThrow(message) + expect(providerDispose).toHaveBeenCalledOnce() + }) + + it.each([ + { label: 'null', value: null }, + { label: 'a primitive', value: 42 }, + ])('rejects $label returned by provider.start before reading a disposer', async ({ value }) => { + const ctx = new Context() + await ctx.plugin(SubagentService) + ctx.subagents.registerProvider({ + name: 'invalid-run-shell', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: () => value as unknown as SubagentRun, + }) + + expect(() => ctx.subagents.start('invalid-run-shell', baseRequest())).toThrow('must return a SubagentRun object') + }) + + it('rejects a run without a callable disposer before accepting ownership', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + ctx.subagents.registerProvider({ + name: 'invalid-dispose', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: () => ({ dispose: 42 }) as unknown as SubagentRun, + }) + + expect(() => ctx.subagents.start('invalid-dispose', baseRequest())).toThrow('run dispose must be a function') + }) + + it('observes accepted provider promises when a later handle field is malformed', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const providerDispose = vi.fn(async () => {}) + ctx.subagents.registerProvider({ + name: 'rejected-malformed-handle', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: () => ({ + id: AgentId('rejected-malformed-child'), + started: Promise.reject(new Error('readiness already rejected')), + result: Promise.reject(new Error('result already rejected')), + cancel: 42, + dispose: providerDispose, + }) as unknown as SubagentRun, + }) + + expect(() => ctx.subagents.start('rejected-malformed-handle', baseRequest())).toThrow('run cancel must be a function') + expect(providerDispose).toHaveBeenCalledOnce() + // Let both provider rejections run: the seam's immediate observers keep + // them from surfacing as unhandled after no wrapper was returned. + await Promise.resolve() + }) + + it('starts rollback before surfacing a hostile run accessor failure', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const disposalGate = Promise.withResolvers() + const order: string[] = [] + const providerRun = Object.defineProperties({}, { + dispose: { + get: () => { + order.push('dispose:get') + return async function (this: SubagentRun): Promise { + expect(this).toBe(providerRun) + order.push('dispose:call') + await disposalGate.promise + order.push('dispose:quiescent') + } + }, + }, + id: { get: () => { order.push('id:get'); return AgentId('hostile-handle-child') } }, + started: { get: () => { order.push('started:get'); return Promise.resolve() } }, + result: { get: () => { order.push('result:get'); throw new Error('result accessor exploded') } }, + }) as SubagentRun + ctx.subagents.registerProvider({ + name: 'hostile-handle', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: () => providerRun, + }) + + expect(() => ctx.subagents.start('hostile-handle', baseRequest())).toThrow('result accessor exploded') + expect(order).toEqual(['dispose:get', 'id:get', 'started:get', 'result:get', 'dispose:call']) + disposalGate.resolve(undefined) + await vi.waitFor(() => { expect(order).toContain('dispose:quiescent') }) + }) + + it('rolls back when binding a hostile optional run method fails', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const providerDispose = vi.fn(async () => {}) + const hostileCancel = new Proxy(() => {}, { + get(_target, property) { + if (property === 'length') throw new Error('cancel bind exploded') + return undefined + }, + }) + ctx.subagents.registerProvider({ + name: 'hostile-bind', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: () => ({ + id: AgentId('hostile-bind-child'), + started: Promise.resolve(), + result: Promise.resolve({ output: [], stopReason: 'completed' }), + cancel: hostileCancel, + dispose: providerDispose, + }), + }) + + expect(() => ctx.subagents.start('hostile-bind', baseRequest())).toThrow('cancel bind exploded') + expect(providerDispose).toHaveBeenCalledOnce() + }) + + it.each([ + { label: 'an Error', thrown: new Error('cleanup exploded'), warning: 'cleanup exploded' }, + { label: 'a non-Error value', thrown: 'naked cleanup fault', warning: 'dispose threw a non-Error value' }, + ])('contains rollback failure from $label while preserving the malformed-handle fault', async ({ thrown, warning }) => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + ctx.subagents.registerProvider({ + name: 'rollback-failure', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: () => ({ + id: 42, + started: Promise.resolve(), + result: Promise.resolve({ output: [], stopReason: 'completed' }), + cancel() {}, + dispose: () => { + // Deliberately violate the seam contract to exercise normalization. + throw thrown + }, + }) as unknown as SubagentRun, + }) + + expect(() => ctx.subagents.start('rollback-failure', baseRequest())).toThrow('run id must be a string') + await vi.waitFor(() => { expect(warnings.some(message => message.includes(warning))).toBe(true) }) + }) + it('waits for provider readiness and observes an early result rejection without reordering lifecycle', async () => { const ctx = new Context() await ctx.plugin(SubagentService) @@ -811,6 +1070,8 @@ describe('SubagentService', () => { const ctx = new Context() await ctx.plugin(SubagentService) const nonJsonOutput = [{ type: 'text', text: 'x', evil: () => 0 }] as unknown as SubagentResult['output'] + const disposalGate = Promise.withResolvers() + const providerDispose = vi.fn(async () => { await disposalGate.promise }) ctx.subagents.registerProvider({ name: 'unclone', capabilities: NO_CAPS, @@ -820,16 +1081,23 @@ describe('SubagentService', () => { started: Promise.resolve(), result: Promise.resolve({ output: nonJsonOutput, stopReason: 'completed' } as SubagentResult), cancel() {}, - dispose: async () => {}, + dispose: providerDispose, }), }) const ended = vi.fn() ctx.on('subagent/end', ended) const run = ctx.subagents.start('unclone', baseRequest()) + let resultSettled = false + void run.result.catch(() => { resultSettled = true }) + await vi.waitFor(() => { expect(providerDispose).toHaveBeenCalledOnce() }) + expect(resultSettled).toBe(false) + disposalGate.resolve(undefined) await expect(run.result).rejects.toThrow('subagent result must be losslessly JSON-serializable') + await run.dispose() await Promise.resolve() + expect(providerDispose).toHaveBeenCalledOnce() const endInfo = ended.mock.calls[0]![0] as Record expect(endInfo.stopReason).toBe('error') expect('lastAssistantMessage' in endInfo).toBe(false) @@ -922,6 +1190,42 @@ describe('SubagentService', () => { await expect(run.result).resolves.toMatchObject({ stopReason: 'completed' }) }) + it('contains asynchronous lifecycle-listener rejections without serializing later listeners', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + const laterStart = vi.fn() + const laterEnd = vi.fn() + const laterRemoved = vi.fn() + const asyncStart = (async () => { await Promise.resolve(); throw new Error('async start listener') }) as unknown as () => void + const asyncEnd = (async () => { await Promise.resolve(); throw new Error('async end listener') }) as unknown as () => void + const asyncRemoved = (async () => { await Promise.resolve(); throw new Error('async removed listener') }) as unknown as () => void + ctx.on('subagent/start', asyncStart) + ctx.on('subagent/start', laterStart) + ctx.on('subagent/end', asyncEnd) + ctx.on('subagent/end', laterEnd) + ctx.on('subagent/provider-removed', asyncRemoved) + ctx.on('subagent/provider-removed', laterRemoved) + const unregister = ctx.subagents.registerProvider(new StubProvider('async-listeners')) + + const run = ctx.subagents.start('async-listeners', baseRequest()) + await run.started + expect(laterStart).toHaveBeenCalledOnce() + await run.result + await vi.waitFor(() => { + expect(laterEnd).toHaveBeenCalledOnce() + expect(warnings.some(message => message.includes('async start listener'))).toBe(true) + expect(warnings.some(message => message.includes('async end listener'))).toBe(true) + }) + + await unregister() + expect(laterRemoved).toHaveBeenCalledWith('async-listeners') + await vi.waitFor(() => { + expect(warnings.some(message => message.includes('async removed listener'))).toBe(true) + }) + }) + it('contains a listener whose thrown value cannot be stringified', async () => { const ctx = new Context() await ctx.plugin(SubagentService) diff --git a/packages/support/invariants/src/index.ts b/packages/support/invariants/src/index.ts index 153d97a45c..8d8f52f3d7 100644 --- a/packages/support/invariants/src/index.ts +++ b/packages/support/invariants/src/index.ts @@ -367,6 +367,7 @@ export function apply(ctx: Context): void { 'tools/result': args => (args[0] as ToolExecution).agent, 'system-prompt/assemble': args => (args[1] as AssembleContext).scope, 'session/created': null, + 'session/disposed': null, 'session/event': null, 'session/flush': null, 'subagent/start': null, diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index a3ce9b5117..35ff870080 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -1010,7 +1010,7 @@ export function apply(ctx: Context, config: AcpConfig): void { * quiescence"): for each session settle any pending prompt `cancelled`, then * run that session's {@link AgentHandle} `dispose()` — which stops the loop * (sets `disposed`, aborts the in-flight step), AWAITS the loop's exit (the - * final `turn/end` + `session/flush` are captured while `onAppend` is still + * final `turn/end` + `session/flush` are captured while the store-owned append observer is still * attached), unregisters the agent, and removes its session from the store. * The per-session disposes run in parallel. Idempotent — clears the `sessions` * map first and memoizes, so a second call (close racing dispose) is a no-op. diff --git a/packages/ui/acp/tests/dispose.spec.ts b/packages/ui/acp/tests/dispose.spec.ts index 037d00f17e..9dbd72aa35 100644 --- a/packages/ui/acp/tests/dispose.spec.ts +++ b/packages/ui/acp/tests/dispose.spec.ts @@ -159,8 +159,8 @@ describe('acp bridge — disposal & HMR safety', () => { it('the final turn closing events are persisted across an AgentHandle dispose (durability)', async () => { // The teardown-ORDER guarantee: a per-agent dispose must stop the loop, // AWAIT its exit (so the loop's final `turn/end` + `session/flush` fire - // through the still-attached `session.onAppend` → `session/event`), and only - // THEN detach onAppend + remove the session. If the order were inverted + // through the still-attached store observer → `session/event`), and only + // THEN detach that observer + remove the session. If the order were inverted // (detach first), the closing events would never reach persistence. Drive a // CLEAN turn to completion, dispose JUST the bridge, then re-load the // persisted log from disk and assert the closing turn/end is on disk — the @@ -190,7 +190,7 @@ describe('acp bridge — disposal & HMR safety', () => { // produced BY the dispose itself. Here the model stream HANGS, so the turn is // still open when teardown runs: the composite agent effect stops the loop, // the loop unwinds and appends `turn/end {disposed}` + runs its final - // `session/flush` — all while `onAppend` is still attached (the session + // `session/flush` — all while the store-owned append observer is still attached (the session // detach is the LAST disposer in the same effect's LIFO chain) — and only // THEN is the session detached. If the order were inverted (or the session // were a racing SIBLING effect), the abort-produced `turn/end` would never @@ -255,7 +255,7 @@ describe('acp bridge — disposal & HMR safety', () => { // into ONE composite effect whose disposers run as a `.then()` chain. The // register disposer emits `agent/disposed`; if a listener throws and the // emit is UNCONTAINED, the rejected chain skips the LATER session-detach - // disposer — stranding the session in the store with `onAppend` attached (a + // disposer — stranding the session in the store with its append observer attached (a // leak AND a durability hole, since the new design relies on detach // running). The emit must be contained. Register a throwing listener, drive // a clean turn, dispose, and assert the session was STILL removed. diff --git a/packages/ui/user-approval/README.md b/packages/ui/user-approval/README.md index 821e98638f..1c573cdf3f 100644 --- a/packages/ui/user-approval/README.md +++ b/packages/ui/user-approval/README.md @@ -2,11 +2,11 @@ User-approval seam. Owns the `ctx.approval` service ([`ApprovalService`](src/index.ts)) and the one-shot permission vocabulary the harness shares: `ApprovalRequest` (agent + tool identity + reason + abort signal), the closed `ApprovalOutcome` union (`allowed-once` / `rejected` / `cancelled` / `unavailable`), the `ApprovalRequestId` brand pairing the two log-only audit events (`approval/asked` / `approval/decided`), and the `approval/request` waterfall the answerers listen on. It lives in the UI group because its purpose is human permission, while remaining channel-neutral: it depends only on Cordis and core vocabulary packages, never on a concrete UI. -The contract in one line: `ctx.approval.request(req)` puts exactly one question — "may this specific action proceed?" — to whatever answerers the deployment composed, and always resolves to an outcome, never rejects: an aborted signal yields `cancelled`, a throwing or missing answerer yields `unavailable`, and `allowed-once` is a grant for the single asked-about action, never a class of future ones. Acceptance is synchronous: the service shallow-freezes a detached request record before dispatch, preserving the exact `agent` and `AbortSignal` identities while making later caller mutation unable to redirect scope, payload, cancellation, or either audit event. Session observers run after an event enters the append-only log; if one throws, the service recognizes that the audit is already authoritative, contains the observer failure, and completes the pair. The one precondition: ask from inside an open turn — the audit pair is turn-enclosed by contract (the turn is the durable log's commit/replay boundary; a bare event between turns is crash-tail garbage on reload), so an idle ask throws before appending anything. +The contract in one line: `ctx.approval.request(req)` puts exactly one question — "may this specific action proceed?" — to whatever answerers the deployment composed, and its decision phase always resolves to an outcome: an aborted signal yields `cancelled`, a throwing or missing answerer yields `unavailable`, and `allowed-once` is a grant for the single asked-about action, never a class of future ones. Acceptance is synchronous: the service reads the request fields and `agent.session` binding once, requires object agent/session identities, a string `toolName`, optional string `callId`/`reason`, and an AbortSignal-shaped live capability, then shallow-freezes a detached request record while preserving the exact `agent` and signal identities. A malformed request rejects before any audit append; later caller mutation cannot redirect scope, payload, cancellation, policy lookup, or either audit event. The other precondition is an open turn on the captured session — the audit pair is turn-enclosed by contract (the turn is the durable log's commit/replay boundary; a bare event between turns is crash-tail garbage on reload), so an idle ask also rejects before appending. Session observers run after an event enters the append-only log; if one throws, the service recognizes that the audit is already authoritative, contains the observer failure, and completes the pair. The service is the mechanism, answerers are the policy. Answerers are `approval/request` waterfall listeners occupying a single decision slot: answer for an agent you own by returning an outcome without calling `next()`, or delegate an agent you don't recognize by calling `next()` — the chain's built-in default is `unavailable`, so a deployment with no answerer (headless, CI) fails closed with zero configuration. Dispatch is keyed by `req.agent`: a listener registered through `agent.ctx` receives only that agent's questions, while a plain-context listener receives every agent's. Registration order across sibling plugins is not load-order deterministic; compose one terminal answerer per deployment and use `prepend` listeners only for decide-or-delegate gates. -The seam also owns the per-session POLICY tier ([the sandbox RFC § Per-session mode switching](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)): `ApprovalPolicy` is `'ask'` (delegate to the answerers) or `'never'` (deterministically reject without prompting anyone; the strict CI/unattended stance), with `effective = fold(the session's 'approval/policy' events, last one wins) ?? Config.policy` — the session log is the store, written only through `setApprovalPolicy(session, policy)`. The service decides `'never'` inside `request()` itself, before dispatching the waterfall (`'never'` → `'rejected'` with the audit pair still landing; no listener registration, including a later `prepend`, can precede it), states `'never'` — and only `'never'` in prose — in a per-agent prompt section, records either value with a source-owned header marker, and narrates a policy switch to the model in at most one coalesced `agent/pre-step` notice. The restart fallback reads the marker rather than deployment-controlled persona prose; attribution is positional (an override event after the last `request/header*` reads `changed by the user`, otherwise `changed by the operator/config`). +The seam also owns the per-session POLICY tier ([the sandbox RFC § Per-session mode switching](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)): `ApprovalPolicy` is `'ask'` (delegate to the answerers) or `'never'` (deterministically reject without prompting anyone; the strict CI/unattended stance), with `effective = fold(the session's 'approval/policy' events, last one wins) ?? Config.policy` — the session log is the store, written only through `setApprovalPolicy(session, policy)`, which rejects any value outside that closed vocabulary before appending. The service decides `'never'` inside `request()` itself, before dispatching the waterfall (`'never'` → `'rejected'` with the audit pair still landing; no listener registration, including a later `prepend`, can precede it), states `'never'` — and only `'never'` in prose — in a per-agent prompt section, records either value with a source-owned header marker, and narrates a policy switch to the model in at most one coalesced `agent/pre-step` notice. The restart fallback reads the marker rather than deployment-controlled persona prose; attribution is positional (an override event after the last `request/header*` reads `changed by the user`, otherwise `changed by the operator/config`). One seam serves both ask paths of [the sandbox RFC](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md): the `tools/pre-execute` `ask` decision (routed by [`@deepseek-ai/dsh-tools`](../../core/tools/) when this service is mounted; degrading to deny when it is not), and the sandbox post-denial escalated retry (the bash tool's `sandbox_permissions` gate in [`@deepseek-ai/dsh-tool-bash`](../../bash/tool-bash/) — [the sandbox RFC § Escalation](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)). The full design: [the approval-seam RFC](../../../docs/rfc/implemented/feature/2026-07-06-approval-seam.md). diff --git a/packages/ui/user-approval/src/index.ts b/packages/ui/user-approval/src/index.ts index 4fb50ba23b..93ccd973c7 100644 --- a/packages/ui/user-approval/src/index.ts +++ b/packages/ui/user-approval/src/index.ts @@ -223,12 +223,16 @@ function hasOpenTurn(events: readonly SessionEvent[]): boolean { * THE write path for a session's approval-policy override: appends exactly * one `approval/policy` event — the switch IS its event; nothing mutates * policy state out of band. Takes effect on the session's next ask and next - * prompt assembly (the consumers fold on every read). + * prompt assembly (the consumers fold on every read). Rejects a value outside + * {@link APPROVAL_POLICIES} before appending anything. * @param session - the session the override belongs to. * @param policy - the policy every subsequent ask for this session resolves * under (until the next switch). */ export function setApprovalPolicy(session: Session, policy: ApprovalPolicy): void { + if (!APPROVAL_POLICIES.includes(policy)) { + throw new TypeError('approval policy must be one of "ask" or "never"') + } session.append('approval/policy', { policy }) } @@ -238,8 +242,10 @@ export function setApprovalPolicy(session: Session, policy: ApprovalPolicy): voi * was asked — it deliberately does NOT carry tool arguments: a UI answerer * attaches the prompt to the already-streamed tool call via `callId` instead * of re-rendering the call. `request()` synchronously copies and shallow-freezes - * this record before crossing an asynchronous boundary. Scalar fields are - * detached; the `agent` and `signal` identity capabilities are preserved. + * this record before crossing an asynchronous boundary. It reads each field + * and the agent's session binding once, validates the public fixed-field + * contract before audit, and detaches the scalar values; the `agent` and live + * `signal` identity capabilities are preserved rather than cloned or frozen. */ export interface ApprovalRequest { /** @@ -264,6 +270,13 @@ export interface ApprovalRequest { signal?: AbortSignal } +/** Live signal capability accepted at the synchronous request boundary. */ +interface AcceptedSignal { + signal: AbortSignal + addEventListener: AbortSignal['addEventListener'] + removeEventListener: AbortSignal['removeEventListener'] +} + /** Plugin config. All optional — `static Config` supplies the defaults. */ export interface Config { /** @@ -297,7 +310,7 @@ export class ApprovalService extends Service { constructor(ctx: Context, public config: Config) { super(ctx, 'approval') - const effective = (agent: Agent): ApprovalPolicy => this.effectivePolicy(agent) + const effective = (agent: Agent): ApprovalPolicy => this.effectivePolicy(agent.session) // Visibility layer 1, scoped on the prompt registry so headless // compositions mount the seam without it: state the one deterministic @@ -345,7 +358,7 @@ export class ApprovalService extends Service { } // Same fold effectivePolicy performs — override is scanned here anyway // for POSITIONAL attribution; the default lives once, in the method. - const current = this.effectivePolicy(agent) + const current = this.effectivePolicy(session) const header = session.requestHeader() const told = narrated.get(session) ?? toldApprovalPolicy(header?.system) narrated.set(session, current) @@ -361,17 +374,21 @@ export class ApprovalService extends Service { } /** - * Ask the composed answerers to decide one request. Requires an open turn - * on the requesting agent's session — the audit pair below is turn-enclosed - * by contract (the turn is the log's commit/replay boundary; an idle append - * would be dropped as crash tail on reload) — and throws before appending - * anything when called idle; asking outside a turn is a deferred design. - * Within that precondition it always resolves to an outcome, never rejects: - * an aborted signal yields `'cancelled'`, a missing or throwing answerer - * yields `'unavailable'` (fail closed), and a rogue non-vocabulary return - * value is normalized to `'unavailable'`. The caller-owned request is - * synchronously snapshotted, so later mutation cannot split routing, - * dispatch payload, cancellation, or the audit pair across agents/sessions. + * Ask the composed answerers to decide one request. Synchronously reads each + * request field and the agent's session binding once, validates the fixed + * agent/session, string, and live-signal contracts, and rejects before any + * audit append when malformed. The signal remains the caller's exact live + * identity capability; it is neither cloned nor frozen. Requires an open + * turn on the accepted session — the audit pair below is turn-enclosed by + * contract (the turn is the log's commit/replay boundary; an idle append + * would be dropped as crash tail on reload) — and likewise throws before + * appending anything when called idle; asking outside a turn is a deferred + * design. Once accepted it always resolves to an outcome, never rejects: an + * aborted signal yields `'cancelled'`, a missing or throwing answerer yields + * `'unavailable'` (fail closed), and a rogue non-vocabulary return value is + * normalized to `'unavailable'`. The caller-owned request is synchronously + * snapshotted, so later mutation cannot split routing, dispatch payload, + * cancellation, policy lookup, or the audit pair across agents/sessions. * Appends the * `approval/asked`/`approval/decided` audit pair (log-only) around the * decision regardless of outcome. A synchronous session observer failure @@ -385,20 +402,73 @@ export class ApprovalService extends Service { // Accept one immutable request shape before the first async boundary. The // caller retains its record and may mutate it as soon as this async method // returns; identity capabilities stay live, but the record is never reread. - const agent = req.agent - const toolName = req.toolName - const callId = req.callId - const reason = req.reason - const signal = req.signal + const input: unknown = req + if (typeof input !== 'object' || input === null) { + throw new TypeError('approval.request() requires a request object') + } + const source = input as Record + const agentInput = source['agent'] + const toolName = source['toolName'] + const callId = source['callId'] + const reason = source['reason'] + const signalInput = source['signal'] + if (typeof agentInput !== 'object' || agentInput === null) { + throw new TypeError('approval request agent must be an object') + } + if (typeof toolName !== 'string') { + throw new TypeError('approval request toolName must be a string') + } + if (callId !== undefined && typeof callId !== 'string') { + throw new TypeError('approval request callId must be a string when provided') + } + if (reason !== undefined && typeof reason !== 'string') { + throw new TypeError('approval request reason must be a string when provided') + } + let acceptedSignal: AcceptedSignal | undefined + if (signalInput !== undefined) { + if (typeof signalInput !== 'object' || signalInput === null) { + throw new TypeError('approval request signal must be an AbortSignal when provided') + } + const signalRecord = signalInput as unknown as Record + const aborted = signalRecord['aborted'] + const addEventListener = signalRecord['addEventListener'] + const removeEventListener = signalRecord['removeEventListener'] + if (typeof aborted !== 'boolean' + || typeof addEventListener !== 'function' + || typeof removeEventListener !== 'function') { + throw new TypeError('approval request signal must be an AbortSignal when provided') + } + acceptedSignal = { + signal: signalInput as AbortSignal, + addEventListener: addEventListener as AbortSignal['addEventListener'], + removeEventListener: removeEventListener as AbortSignal['removeEventListener'], + } + } + const sessionInput = (agentInput as unknown as Record)['session'] + if (typeof sessionInput !== 'object' || sessionInput === null) { + throw new TypeError('approval request agent session must be an object') + } + const sessionRecord = sessionInput as unknown as Record + const events = sessionRecord['events'] + const append = sessionRecord['append'] + if (!Array.isArray(events)) { + throw new TypeError('approval request session events must be an array') + } + if (typeof append !== 'function') { + throw new TypeError('approval request session append must be a function') + } + const agent = agentInput as Agent + const session = sessionInput as Session + const acceptedCallId = callId as CallId | undefined + const signal = signalInput as AbortSignal | undefined const accepted: Readonly = Object.freeze({ agent, toolName, - ...callId !== undefined ? { callId } : {}, + ...acceptedCallId !== undefined ? { callId: acceptedCallId } : {}, ...reason !== undefined ? { reason } : {}, ...signal !== undefined ? { signal } : {}, }) - const session = accepted.agent.session - if (!hasOpenTurn(session.events)) { + if (!hasOpenTurn(events)) { throw new Error( 'approval.request() outside an open turn: the approval/asked + approval/decided audit pair ' + 'must be turn-enclosed (a bare event between turns is crash-tail garbage on reload). ' @@ -407,16 +477,16 @@ export class ApprovalService extends Service { } const id = ApprovalRequestId(randomUUID()) this.appendAudit(session, 'approval/asked', id, () => { - session.append('approval/asked', { + Reflect.apply(append, session, ['approval/asked', { id, toolName: accepted.toolName, ...accepted.callId !== undefined ? { callId: accepted.callId } : {}, ...accepted.reason !== undefined ? { reason: accepted.reason } : {}, - }) + }]) }) - const outcome = await this.decide(accepted) + const outcome = await this.decide(accepted, session, acceptedSignal) this.appendAudit(session, 'approval/decided', id, () => { - session.append('approval/decided', { id, outcome }) + Reflect.apply(append, session, ['approval/decided', { id, outcome }]) }) return outcome } @@ -451,22 +521,30 @@ export class ApprovalService extends Service { * The session's effective policy: its own `approval/policy` fold, else the * configured default (the schema already defaulted an omitted policy to * `'ask'`; the `??` only narrows the optional-input TYPE). - * @param agent - the agent whose session's policy applies. - * @returns the policy every ask for this agent resolves under right now. + * @param session - the exact accepted session whose policy applies. + * @returns the policy every ask for this session resolves under right now. */ - private effectivePolicy(agent: Agent): ApprovalPolicy { - return effectiveApprovalPolicy(agent.session.events) ?? this.config.policy ?? 'ask' + private effectivePolicy(session: Session): ApprovalPolicy { + return effectiveApprovalPolicy(session.events) ?? this.config.policy ?? 'ask' } - /** Dispatch the waterfall, contained and raced against the accepted signal. */ - private async decide(req: Readonly): Promise { - if (req.signal?.aborted) return 'cancelled' + /** + * Dispatch the waterfall, contained and raced against the accepted signal. + * @param req - the detached public request snapshot. + * @param session - the captured session used for policy lookup. + * @param acceptedSignal - the validated live signal capability, if supplied. + * @returns the normalized closed outcome. + */ + private async decide( + req: Readonly, session: Session, acceptedSignal: AcceptedSignal | undefined, + ): Promise { + if (acceptedSignal?.signal.aborted) return 'cancelled' // The 'never' policy is decided HERE, before any dispatch: a listener // registered with `prepend: true` after this service mounts would sit // ahead of any gate LISTENER, so a listener-shaped gate cannot keep the // documented promise that 'never' rejects deterministically regardless // of registration order — only the service's own request path can. - if (this.effectivePolicy(req.agent) === 'never') return 'rejected' + if (this.effectivePolicy(session) === 'never') return 'rejected' // Enter the promise chain BEFORE dispatching: a listener that throws // SYNCHRONOUSLY (before its first await) must land in the same rejection // path as an async one — `Promise.resolve(call())` would let it escape @@ -484,13 +562,13 @@ export class ApprovalService extends Service { // tool call open — the seam contains its callbacks. () => 'unavailable', ) - const signal = req.signal - if (signal === undefined) return answer + if (acceptedSignal === undefined) return answer + const { signal, addEventListener, removeEventListener } = acceptedSignal return await new Promise((resolve) => { const onAbort = () => { resolve('cancelled') } - signal.addEventListener('abort', onAbort, { once: true }) + addEventListener.call(signal, 'abort', onAbort, { once: true }) void answer.then((outcome) => { - signal.removeEventListener('abort', onAbort) + removeEventListener.call(signal, 'abort', onAbort) // After an abort won the race this resolve is a settled-promise no-op: // the late answer is discarded by construction. resolve(outcome) diff --git a/packages/ui/user-approval/tests/approval.spec.ts b/packages/ui/user-approval/tests/approval.spec.ts index 0e69b8dfd7..831b50111b 100644 --- a/packages/ui/user-approval/tests/approval.spec.ts +++ b/packages/ui/user-approval/tests/approval.spec.ts @@ -39,6 +39,158 @@ function requestOf(agent: Agent, overrides: Partial = {}): Appr } describe('ApprovalService.request', () => { + it('rejects malformed fixed fields and identities before appending or dispatching', async () => { + const ctx = await mounted() + const consulted = vi.fn() + ctx.on('approval/request', () => { + consulted() + return Promise.resolve('allowed-once') + }) + const { agent, appended } = fakeAgent() + const badSessionAppends: Array> = [] + const badSession = (events: unknown, append: unknown): Agent => ({ + session: { events, append }, + }) as unknown as Agent + const appendSpy = (): ReturnType => { + const append = vi.fn() + badSessionAppends.push(append) + return append + } + const validSignalShape = { + aborted: false, + addEventListener: () => {}, + removeEventListener: () => {}, + } + const cases: Array<{ request: unknown; message: string }> = [ + { request: null, message: 'requires a request object' }, + { request: 1, message: 'requires a request object' }, + { request: { agent: null, toolName: 'echo' }, message: 'agent must be an object' }, + { request: { agent: 1, toolName: 'echo' }, message: 'agent must be an object' }, + { request: { agent, toolName: 1 }, message: 'toolName must be a string' }, + { request: { agent, toolName: 'echo', callId: 1 }, message: 'callId must be a string' }, + { request: { agent, toolName: 'echo', reason: 1 }, message: 'reason must be a string' }, + { request: { agent, toolName: 'echo', signal: null }, message: 'signal must be an AbortSignal' }, + { request: { agent, toolName: 'echo', signal: 1 }, message: 'signal must be an AbortSignal' }, + { + request: { agent, toolName: 'echo', signal: { ...validSignalShape, aborted: 'no' } }, + message: 'signal must be an AbortSignal', + }, + { + request: { agent, toolName: 'echo', signal: { ...validSignalShape, addEventListener: 1 } }, + message: 'signal must be an AbortSignal', + }, + { + request: { agent, toolName: 'echo', signal: { ...validSignalShape, removeEventListener: 1 } }, + message: 'signal must be an AbortSignal', + }, + { + request: { agent: { session: null }, toolName: 'echo' }, + message: 'agent session must be an object', + }, + { + request: { agent: { session: 1 }, toolName: 'echo' }, + message: 'agent session must be an object', + }, + { + request: { agent: badSession(null, appendSpy()), toolName: 'echo' }, + message: 'session events must be an array', + }, + { + request: { agent: badSession([{ type: 'turn/start' }], 1), toolName: 'echo' }, + message: 'session append must be a function', + }, + ] + + for (const { request, message } of cases) { + await expect(ctx.approval.request(request as ApprovalRequest)).rejects.toThrow(message) + } + + expect(appended).toEqual([]) + for (const append of badSessionAppends) expect(append).not.toHaveBeenCalled() + expect(consulted).not.toHaveBeenCalled() + }) + + it('reads request fields, the agent session, and the session append method once', async () => { + const ctx = await mounted() + const { agent: acceptedSessionOwner, appended: acceptedAudit } = fakeAgent() + const { agent: replacementAgent, appended: replacementAudit } = fakeAgent() + const acceptedSession = acceptedSessionOwner.session + const acceptedAppend = acceptedSession.append.bind(acceptedSession) + const signal = new AbortController().signal + const reads = { + agent: 0, + toolName: 0, + callId: 0, + reason: 0, + signal: 0, + session: 0, + append: 0, + } + const session = { + events: acceptedSession.events, + get append(): Session['append'] { + reads.append += 1 + return reads.append === 1 ? acceptedAppend : undefined as unknown as Session['append'] + }, + } as Session + const agent = Object.defineProperty({}, 'session', { + enumerable: true, + get: () => { + reads.session += 1 + return reads.session === 1 ? session : replacementAgent.session + }, + }) as Agent + const request = Object.defineProperties({}, { + agent: { + enumerable: true, + get: () => (++reads.agent === 1 ? agent : null), + }, + toolName: { + enumerable: true, + get: () => (++reads.toolName === 1 ? 'stable-tool' : 1), + }, + callId: { + enumerable: true, + get: () => (++reads.callId === 1 ? CallId('stable-call') : {}), + }, + reason: { + enumerable: true, + get: () => (++reads.reason === 1 ? 'stable reason' : {}), + }, + signal: { + enumerable: true, + get: () => (++reads.signal === 1 ? signal : {}), + }, + }) as ApprovalRequest + let received: ApprovalRequest | undefined + ctx.on('approval/request', (accepted) => { + received = accepted + return Promise.resolve('allowed-once') + }) + + await expect(ctx.approval.request(request)).resolves.toBe('allowed-once') + + expect(reads).toEqual({ + agent: 1, + toolName: 1, + callId: 1, + reason: 1, + signal: 1, + session: 1, + append: 1, + }) + expect(received).toMatchObject({ + agent, + toolName: 'stable-tool', + callId: 'stable-call', + reason: 'stable reason', + signal, + }) + expect(Object.isFrozen(received)).toBe(true) + expect(acceptedAudit.map(event => event.type)).toEqual(['approval/asked', 'approval/decided']) + expect(replacementAudit).toEqual([]) + }) + it('throws before appending anything when no turn has ever opened (idle ask)', async () => { const ctx = await mounted() const { agent, appended } = fakeAgent([]) @@ -420,6 +572,15 @@ describe('approval policy (the approval/policy fold)', () => { expect(session.events.at(-1)).toMatchObject({ type: 'approval/policy', data: { policy: 'ask' } }) }) + it('rejects a policy outside the closed vocabulary before appending', () => { + const append = vi.fn() + const session = { append } as unknown as Session + + expect(() => { setApprovalPolicy(session, 'sometimes' as Parameters[1]) }) + .toThrow('approval policy must be one of "ask" or "never"') + expect(append).not.toHaveBeenCalled() + }) + it('defaults a schema-less construction to ask (the ?? narrows the optional TYPE)', async () => { // Direct construction bypasses the plugin schema (the SystemPrompt-test // precedent for covering a defaulted Config field's type-narrowing ??). diff --git a/packages/workflow/workflow-workerthread/README.md b/packages/workflow/workflow-workerthread/README.md index d7cd9ed64c..2ea1a78c39 100644 --- a/packages/workflow/workflow-workerthread/README.md +++ b/packages/workflow/workflow-workerthread/README.md @@ -35,7 +35,7 @@ Values LEAVING the script (hook options/schemas, the script's return) are materi ## Cancellation, death, disposal -Per-run limits: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` posts the cancel to the worker (its hooks start throwing `CANCELLED`; the script dies at its next await) and cancels every host-side child NOW on **both seam channels** — the shared request signal aborts AND each registered child's explicit `cancel()` is called host-side, because the seam leaves a provider free to honor either channel and a worker wedged in a synchronous spin could not relay its own per-child cancel RPCs (those later land as idempotent no-ops). Each provider-owned cancel callback is exception-contained independently, so a broken child cannot prevent peer cancellation or workflow settlement. The grace then arms: a run still unsettled `disposeGraceMs` later force-settles `cancelled` and the worker is **terminated**. A cancellation that lands before the body runs (the ready→go handshake) reports `cancelled` without executing anything; a worker `result` racing an in-flight host cancellation reports `cancelled` too (first-wins settlement — the seam-visible result had not settled when cancellation was requested); post-cancel `phase`/`log` narration is suppressed host-side, while cancelled children still deliver their paired `agent-end`. +Per-run limits: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` posts the cancel to the worker (its hooks start throwing `CANCELLED`; the script dies at its next await) and cancels every host-side child NOW on **both seam channels** — the shared request signal aborts AND each registered child's explicit `cancel()` is called host-side, because the seam leaves a provider free to honor either channel and a worker wedged in a synchronous spin could not relay its own per-child cancel RPCs (those later land as idempotent no-ops). Each provider-owned cancel callback is exception-contained independently, so a broken child cannot prevent peer cancellation or workflow settlement. The caller's optional start-signal callback is retained by exact identity only while the run is live and removed at the first settlement or teardown, so a long-lived signal cannot retain completed `WorkerRun` instances. The grace then arms: a run still unsettled `disposeGraceMs` later force-settles `cancelled` and the worker is **terminated**. A cancellation that lands before the body runs (the ready→go handshake) reports `cancelled` without executing anything; a worker `result` racing an in-flight host cancellation reports `cancelled` too (first-wins settlement — the seam-visible result had not settled when cancellation was requested); post-cancel `phase`/`log` narration is suppressed host-side, while cancelled children still deliver their paired `agent-end`. A worker that dies unexpectedly (an OOM, a script reaching `process.exit` through the documented vm escape) settles the run `stopReason: 'error'` with the exit diagnostics — or `'cancelled'` when a cancel was in flight — and the host-side child registry is what winds every surviving child down. `dispose()` = cancel + immediate host-driven disposal of every registered child (a wedged worker can relay no dispose RPC, so child teardown overlaps the grace instead of starting after it; the worker's own dispose RPCs join the same per-child disposal) + bounded wait (result, then child-registry quiescence, capped by the grace) + unconditional `worker.terminate()`: the thread never outlives its run. Before an ordinary run settlement becomes observable, the host cancels every stray child on both channels too—even a fire-and-forget run still waiting on `started`, for which the worker has no handle yet—and `dispose()` then waits for their disposal (bounded by the grace) before returning. `agent-start`/`agent-end` pairing is host-guaranteed the same way: forwarded starts live in a ledger, worker-reported ends pair them on the graceful paths, and the termination paths (grace force-settle, worker death) synthesize the missing ends (outcome `cancelled`) before the run settles — a start still in flight across the force-settle can surface after `workflow/end`, immediately paired the same way. diff --git a/packages/workflow/workflow-workerthread/src/host.ts b/packages/workflow/workflow-workerthread/src/host.ts index b1d92ac1d0..e1c1a6542f 100644 --- a/packages/workflow/workflow-workerthread/src/host.ts +++ b/packages/workflow/workflow-workerthread/src/host.ts @@ -130,6 +130,9 @@ export class WorkerRun implements WorkflowRun { private readonly quiescenceWaiters: (() => void)[] = [] /** The per-run abort fanout every child start request carries. */ private readonly controller = new AbortController() + /** External start signal and the exact callback installed on it, retained only until first settle/teardown. */ + private inputSignal: AbortSignal | undefined + private inputSignalAbort: (() => void) | undefined private disposed: Promise | undefined constructor( @@ -159,8 +162,14 @@ export class WorkerRun implements WorkflowRun { }) if (signal?.aborted) { this.cancel('workflow start signal already aborted') - } else { - signal?.addEventListener('abort', () => { this.cancel('workflow signal aborted') }, { once: true }) + } else if (signal !== undefined) { + const onAbort = (): void => { + this.detachInputSignal() + this.cancel('workflow signal aborted') + } + this.inputSignal = signal + this.inputSignalAbort = onAbort + signal.addEventListener('abort', onAbort, { once: true }) } } @@ -217,6 +226,7 @@ export class WorkerRun implements WorkflowRun { */ dispose(): Promise { this.disposed ??= (async () => { + this.detachInputSignal() this.cancel('workflow disposed') for (const [callId, run] of [...this.children]) void this.disposeChild(callId, run) await Promise.race([ @@ -522,10 +532,21 @@ export class WorkerRun implements WorkflowRun { return { value: null, stopReason: 'cancelled', error: `workflow run cancelled: ${reason}`, agentsStarted } } - /** First settle wins; disarms the grace timer. */ + /** Remove the exact abort callback installed on the caller's start signal. */ + private detachInputSignal(): void { + const signal = this.inputSignal + const onAbort = this.inputSignalAbort + if (signal === undefined || onAbort === undefined) return + this.inputSignal = undefined + this.inputSignalAbort = undefined + signal.removeEventListener('abort', onAbort) + } + + /** First settle wins; disarms the grace timer and releases the caller signal. */ private settleResult(result: WorkflowResult): void { if (this.settled) return this.settled = true + this.detachInputSignal() clearTimeout(this.graceTimer) this.settleResolve(result) } diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index 46a42e4036..d5b16a8e2f 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -585,6 +585,41 @@ describe('dsh-workflow-workerthread', () => { await second.dispose() }) + it('removes the exact external abort callback on first settlement or teardown', async () => { + const { ctx, parent } = await setup() + const settledController = new AbortController() + const settledAdd = vi.spyOn(settledController.signal, 'addEventListener') + const settledRemove = vi.spyOn(settledController.signal, 'removeEventListener') + const completed = ctx.workflows.start({ ...scripted('return 123'), parent, signal: settledController.signal }) + const settledAbort = settledAdd.mock.calls.find(([type]) => type === 'abort')?.[1] + expect(typeof settledAbort).toBe('function') + + await expect(completed.result).resolves.toMatchObject({ value: 123, stopReason: 'completed' }) + expect(settledRemove).toHaveBeenCalledWith('abort', settledAbort) + const cancelAfterSettle = vi.spyOn(completed, 'cancel') + settledController.abort() + expect(cancelAfterSettle).not.toHaveBeenCalled() + cancelAfterSettle.mockRestore() + await completed.dispose() + + const manual = await setup({ manual: true }) + const teardownController = new AbortController() + const teardownAdd = vi.spyOn(teardownController.signal, 'addEventListener') + const teardownRemove = vi.spyOn(teardownController.signal, 'removeEventListener') + const tornDown = manual.ctx.workflows.start({ + ...scripted("return await agent('job')"), + parent: manual.parent, + signal: teardownController.signal, + }) + await waitFor(() => { expect(manual.provider.runs).toHaveLength(1) }) + const teardownAbort = teardownAdd.mock.calls.find(([type]) => type === 'abort')?.[1] + expect(typeof teardownAbort).toBe('function') + + const disposing = tornDown.dispose() + expect(teardownRemove).toHaveBeenCalledWith('abort', teardownAbort) + await disposing + }) + it('a child-start racing the host cancel is refused: no child starts after cancellation', async () => { const { ctx, parent, provider } = await setup({ manual: true }) // Cancel from INSIDE the log listener: the worker has already posted diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 074cfd83d2..5459755be5 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -246,6 +246,13 @@ const SERVICE_ROLES: ServiceRole[] = [ ] const DYNAMIC_EVENT_DISPATCHERS: Array<{ event: string; pkg: string; method: string }> = [ + // Creation notifications preserve synchronous veto/rollback but observe + // returned promises explicitly so async listener rejection is not unhandled. + { event: 'agent/created', pkg: 'agent', method: 'events.dispatch' }, + { event: 'session/created', pkg: 'session', method: 'events.dispatch' }, + // Session disposal uses direct callback resolution so teardown contains each + // synchronous throw and returned-promise rejection independently. + { event: 'session/disposed', pkg: 'session', method: 'events.dispatch' }, // tools/result uses ctx.events.dispatch directly so the registry can await // every observer while containing each callback independently. { event: 'tools/result', pkg: 'tools', method: 'events.dispatch' }, diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index 4be54d89f4..e238583e69 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -17,6 +17,14 @@ { "doc": "docs/core-data-structures/core.md", "symbol": "ContinuationStop", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "SessionStartSource", "source": "packages/core/agent/src/types.ts" }, + { "doc": "docs/core-data-structures/scope.md", "symbol": "ScopeKey", "source": "packages/core/scope/src/index.ts" }, + { "doc": "docs/core-data-structures/scope.md", "symbol": "Scoped", "source": "packages/core/scope/src/index.ts" }, + { "doc": "docs/core-data-structures/scope.md", "symbol": "Scope", "source": "packages/core/scope/src/index.ts" }, + + { "doc": "docs/core-data-structures/system-prompt.md", "symbol": "AssembleContext", "source": "packages/core/system-prompt/src/index.ts" }, + { "doc": "docs/core-data-structures/system-prompt.md", "symbol": "ToolProviderResult", "source": "packages/core/system-prompt/src/index.ts" }, + { "doc": "docs/core-data-structures/system-prompt.md", "symbol": "PromptProtection", "source": "packages/core/system-prompt/src/index.ts" }, + { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "StreamChunk", "source": "packages/llm/llm/src/types.ts" }, { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "TokenUsage", "source": "packages/llm/llm/src/types.ts" }, { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "ContentBlockMap", "source": "packages/llm/llm/src/types.ts" }, From 197f7237d2eb8889866759e5f48f801ba5d7197f Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 06:19:53 +0800 Subject: [PATCH 205/232] fix(workflow): bootstrap source worker transforms --- docs/development.i18n.yaml | 4 +- docs/development.md | 2 +- docs/development.zh.md | 2 +- .../process/2026-07-06-node-engine-floor.md | 4 +- .../2026-07-06-parallel-github-ci-gates.md | 6 +-- .../workflow/workflow-workerthread/README.md | 2 +- .../workflow-workerthread/src/host.ts | 48 ++++++++++++------- .../tests/source-worker.compat.spec.ts | 38 +++++++++++++++ .../tests/workflow-workerthread.spec.ts | 6 +-- scripts/run-gates.ts | 5 ++ 10 files changed, 85 insertions(+), 32 deletions(-) create mode 100644 packages/workflow/workflow-workerthread/tests/source-worker.compat.spec.ts diff --git a/docs/development.i18n.yaml b/docs/development.i18n.yaml index c1e557170d..e2dd772eb0 100644 --- a/docs/development.i18n.yaml +++ b/docs/development.i18n.yaml @@ -2,5 +2,5 @@ # side as of the last confirmed-consistent state. Both languages carry equal authority; # after editing either side, bring the other along and re-record with: # pnpm run verify-translation-pairing --write -development.md: bd6f6b561480419abea7a42a44b4078e2c59b1cb -development.zh.md: 54bf19765d2b4dc419e6b71684dbcfcd28230541 +development.md: ea5f2e5d08acbaf1dfce4661530218dbf1a051b9 +development.zh.md: 50877796f2ff47ad46cc67b35f3cd7b5704c8315 diff --git a/docs/development.md b/docs/development.md index bd6f6b5614..ea5f2e5d08 100644 --- a/docs/development.md +++ b/docs/development.md @@ -67,7 +67,7 @@ These hooks do not exactly mirror CI. Notably, `pre-push` runs unit tests withou ## CI gates -The keyless GitHub workflow has eight jobs: five Node 24 lanes run static gates, lint, coverage, snapshot replay, and artifact gates separately, and three compatibility jobs run `pnpm run check:node-compat` on Node 22.19, 24, and 26. The lane schedulers fan out independent gates from `package.json`: constraints, typecheck, lint, coverage, snapshot replay, `doc-sync` members, module-graph freshness, `knip`, and the echo-agent smoke test. +The keyless GitHub workflow has eight jobs: five Node 24 lanes run static gates, lint, coverage, snapshot replay, and artifact gates separately, and three compatibility jobs run `pnpm run check:node-compat` on Node 22.19, 24, and 26. The compatibility command runs the TypeScript typecheck and a keyless workflow-workerthread source-launch smoke on every runtime, so the matrix proves that the source graph typechecks and that a real unbuilt Worker loader path executes; the other lane schedulers fan out independent gates from `package.json`: constraints, lint, coverage, snapshot replay, `doc-sync` members, module-graph freshness, `knip`, and the echo-agent smoke test. `pnpm run build` feeds the artifact lane, and `publint`, `verify-node-next-types`, and built-bin smoke tests wait for build output. The separate real-API workflow runs `pnpm run test:e2e` with a secret and `DSH_E2E_MAX_WORKERS=14`. diff --git a/docs/development.zh.md b/docs/development.zh.md index 54bf19765d..50877796f2 100644 --- a/docs/development.zh.md +++ b/docs/development.zh.md @@ -67,7 +67,7 @@ vendor manifest 守卫检查 `vendor/*/src` 下的改动是否连同对应的 `v ## CI 门禁 -keyless GitHub 工作流有八个 job：五个 Node 24 lane 分别运行 static gates、lint、coverage、snapshot replay 和 artifact gates，三个兼容性 job 在 Node 22.19、24 和 26 上运行 `pnpm run check:node-compat`。各 lane 调度器并发运行来自 `package.json` 的独立门禁：constraints、typecheck、lint、coverage、snapshot replay、`doc-sync` 成员、module graph 新鲜度、`knip` 和 echo-agent 冒烟测试。 +keyless GitHub 工作流有八个 job：五个 Node 24 lane 分别运行 static gates、lint、coverage、snapshot replay 和 artifact gates，三个兼容性 job 在 Node 22.19、24 和 26 上运行 `pnpm run check:node-compat`。兼容性命令会在每个运行时上运行 TypeScript 类型检查和 keyless 的 workflow-workerthread 源码启动冒烟测试，因此该矩阵既证明源码图能通过类型检查，也会实际执行一条未构建的 Worker loader 路径；其他 lane 调度器并发运行来自 `package.json` 的独立门禁：constraints、lint、coverage、snapshot replay、`doc-sync` 成员、module graph 新鲜度、`knip` 和 echo-agent 冒烟测试。 `pnpm run build` 供给 artifact lane，`publint`、`verify-node-next-types` 和 built-bin 冒烟测试等待 build 输出。单独的真实 API 工作流带密钥运行 `pnpm run test:e2e`，并设置 `DSH_E2E_MAX_WORKERS=14`。 diff --git a/docs/rfc/implemented/process/2026-07-06-node-engine-floor.md b/docs/rfc/implemented/process/2026-07-06-node-engine-floor.md index 72c9f09eda..51328a5a1a 100644 --- a/docs/rfc/implemented/process/2026-07-06-node-engine-floor.md +++ b/docs/rfc/implemented/process/2026-07-06-node-engine-floor.md @@ -8,7 +8,7 @@ The Node 22 branch of the root `engines.node` range is a contract for the instal ## Decision -Set `engines.node` to `^22.19.0 || >=24.0.0` and test the keyless CI compatibility matrix on `['22.19', 24, 26]`. The real-API e2e workflow stays on Node 24 because it exercises API integration rather than the runtime floor. +Set `engines.node` to `^22.19.0 || >=24.0.0` and test the keyless CI compatibility matrix on `['22.19', 24, 26]`. Every matrix leg runs the TypeScript typecheck plus a keyless source-mode worker smoke, so the floor is exercised through both a complete source typecheck and a real unbuilt runtime path. The real-API e2e workflow stays on Node 24 because it exercises API integration rather than the runtime floor. Two Node features gate the source runtime: @@ -22,7 +22,7 @@ Those source features clear on the 22.x line at **22.18**, but the installed Pi ## Consequences - The advertised LTS branch no longer undercuts the Pi adapter dependency floor. -- CI proves the Node 22 LTS floor directly with Node 22.19, keeps the Node 24 branch on `node: 24`, and keeps Node 26 for the next even line. +- CI proves the Node 22 LTS floor directly with Node 22.19, keeps the Node 24 branch on `node: 24`, and keeps Node 26 for the next even line; each leg typechecks the source graph and launches the unbuilt workflow worker for real. - The built-bin smoke needs no version-conditional flag: at 22.19 type-stripping is already the default, so the test stays the plain `node lib/bin.js` path it documents. - A future dependency or source API that raises the runtime floor must move `engines.node`, the compatibility matrix, and this RFC in the same change. diff --git a/docs/rfc/implemented/process/2026-07-06-parallel-github-ci-gates.md b/docs/rfc/implemented/process/2026-07-06-parallel-github-ci-gates.md index d63a8ad713..061d534b9b 100644 --- a/docs/rfc/implemented/process/2026-07-06-parallel-github-ci-gates.md +++ b/docs/rfc/implemented/process/2026-07-06-parallel-github-ci-gates.md @@ -10,9 +10,9 @@ The hard part is the artifact boundary. `publint`, `verify-node-next-types`, and ## Decision -[CI](../../../../.github/workflows/ci.yml) keeps the keyless workflow to a few broad jobs instead of one job per gate. The Node 24 matrix has five lanes: static gates (`pnpm run check:ci:static`), lint (`pnpm run check:ci:lint`), coverage (`pnpm run check:ci:coverage`), snapshot replay (`pnpm run check:ci:snapshot`), and artifact gates (`pnpm run check:ci:artifacts`). The Node 26 compatibility job installs once and runs `pnpm run check:node-compat`. +[CI](../../../../.github/workflows/ci.yml) keeps the keyless workflow to a few broad jobs instead of one job per gate. The Node 24 matrix has five lanes: static gates (`pnpm run check:ci:static`), lint (`pnpm run check:ci:lint`), coverage (`pnpm run check:ci:coverage`), snapshot replay (`pnpm run check:ci:snapshot`), and artifact gates (`pnpm run check:ci:artifacts`). The compatibility matrix has Node 22.19, 24, and 26 jobs; each installs once and runs `pnpm run check:node-compat`. -Each lane delegates to [scripts/run-gates.ts](../../../../scripts/run-gates.ts), an in-process scheduler with bounded concurrency (`DSH_GATE_CONCURRENCY`). The static lane fans out constraints, the echo-agent demo smoke, `doc-sync` leaf gates, module-graph freshness, and `knip`; the lint lane runs ESLint with its own Node heap cap and a content-strategy ESLint cache; the coverage lane runs Vitest coverage with bounded file workers (`DSH_COVERAGE_MAX_WORKERS`); the snapshot lane isolates replay; the artifact lane builds once and then fans out the artifact consumers; the Node 26 compatibility job owns the TypeScript typecheck. The scheduler buffers each gate's output and prints a named result block with duration, so independent failures stay attributable inside each broad job log. +Each lane delegates to [scripts/run-gates.ts](../../../../scripts/run-gates.ts), an in-process scheduler with bounded concurrency (`DSH_GATE_CONCURRENCY`). The static lane fans out constraints, the echo-agent demo smoke, `doc-sync` leaf gates, module-graph freshness, and `knip`; the lint lane runs ESLint with its own Node heap cap and a content-strategy ESLint cache; the coverage lane runs Vitest coverage with bounded file workers (`DSH_COVERAGE_MAX_WORKERS`); the snapshot lane isolates replay; the artifact lane builds once and then fans out the artifact consumers. Every compatibility job runs the TypeScript typecheck and a keyless workflow-workerthread source-launch smoke, which starts a real unbuilt worker and therefore catches Node-version-specific loader/runtime failures that typechecking cannot. The scheduler buffers each gate's output and prints a named result block with duration, so independent failures stay attributable inside each broad job log. Generated `.sessions/` logs and `.doc-typecheck-*` temp directories are ignored by lint. The aggregate local CI mode still runs demo smoke after lint, while the split GitHub static lane can run demo smoke directly because lint is isolated in its own lane. @@ -36,4 +36,4 @@ The broad-lane split repeats checkout, setup, and install more often than a sing The split introduces a maintenance obligation: when `package.json` adds or removes a gate that belongs in CI, [scripts/run-gates.ts](../../../../scripts/run-gates.ts) needs the matching leaf. That obligation is intentional because the runner is the parallel execution plan for the same gate vocabulary, not a separate quality policy. -The Node 26 signal is narrower than the primary Node 24 signal. It proves the source graph on the newer runtime without doubling documentation, coverage, publication, snapshot, and smoke checks whose failures are not expected to vary by Node minor version. +The compatibility signal is narrower than the primary Node 24 signal. It proves that the source graph typechecks and that the real unbuilt workflow-worker launch path executes on every advertised runtime line without doubling documentation, coverage, publication, snapshot replay, and unrelated smoke checks whose failures are not expected to vary by Node version. diff --git a/packages/workflow/workflow-workerthread/README.md b/packages/workflow/workflow-workerthread/README.md index 2ea1a78c39..0aba0eb680 100644 --- a/packages/workflow/workflow-workerthread/README.md +++ b/packages/workflow/workflow-workerthread/README.md @@ -21,7 +21,7 @@ What the seam guarantees regardless, because benign scripts hit these constantly ## How a run executes -`start()` shape-validates the meta DATA host-side and parse-checks the body with the identical wrapper the worker compiles (`new vm.Script`, discarded), preserving the seam's synchronous `META_INVALID`/`SCRIPT_PARSE` throws; one redundant parse per run is the deliberate price. It then spawns the worker (`src/worker.ts` unbuilt via an explicit tsx `execArgv`; the sibling `lib/worker.js` bundle when built) with the meta, body, `args`, and worker-side limits as `workerData`. +`start()` shape-validates the meta DATA host-side and parse-checks the body with the identical wrapper the worker compiles (`new vm.Script`, discarded), preserving the seam's synchronous `META_INVALID`/`SCRIPT_PARSE` throws; one redundant parse per run is the deliberate price. It then spawns the worker (unbuilt: a JavaScript data-URL bootstrap registers tsx's ESM and CommonJS transforms inside the worker before importing `src/worker.ts`, giving the whole mixed-module source graph full TypeScript and tsconfig-path transformation on every supported Node line; built: the sibling `lib/worker.js` bundle) with the meta, body, `args`, and worker-side limits as `workerData`. Inside the worker, `runWorkerSession` builds the execution core (hooks, combinators, concurrency semaphore, caps, fatal-error discipline) over a **child port**. `agent()` sends `child-start`, and the host starts the child on `ctx.subagents` with parent attribution, the shared per-run abort signal, and `outputSchema`/`model` pass-through. diff --git a/packages/workflow/workflow-workerthread/src/host.ts b/packages/workflow/workflow-workerthread/src/host.ts index e1c1a6542f..56c0e455f8 100644 --- a/packages/workflow/workflow-workerthread/src/host.ts +++ b/packages/workflow/workflow-workerthread/src/host.ts @@ -41,7 +41,6 @@ * @module @deepseek-ai/dsh-workflow-workerthread/host */ -import { fileURLToPath } from 'node:url' import { Worker } from 'node:worker_threads' import type { WorkerOptions } from 'node:worker_threads' import type { Context } from 'cordis' @@ -59,13 +58,16 @@ import type { ChildResult, ChildStartRequest, WorkerInit } from './types.ts' /** * Resolve the worker entry and spawn options for the current runtime shape. * Unbuilt (tsx demos, vitest — `import.meta.url` points into `src/`), the - * entry is the TypeScript sibling and the worker needs the tsx loader - * registered explicitly: a worker thread inherits no transform pipeline from - * vitest (vite transforms in-process, not via a node loader), and passing - * execArgv explicitly also shields the worker from any loader flags the - * parent was started with. Built (`lib/index.js`), the entry is the sibling - * bundle the package tsdown config emits and no loader is needed (execArgv - * pinned empty — hermetic, like the environment). + * entry is a JavaScript data-URL bootstrap. That bootstrap runs INSIDE the + * user worker, registers tsx's ESM AND CommonJS transforms there, and only + * then imports the TypeScript sibling. The whole mixed-module source graph + * therefore receives TypeScript transformation and the tsconfig paths map in + * the worker's own module-loader realm. A worker inherits no + * transform pipeline from vitest (vite transforms in-process), and a parent + * `--import tsx` registration is not a contract that user workers share on + * every supported Node line. Built (`lib/index.js`), the entry is the sibling + * bundle the package tsdown config emits and no loader is needed (`execArgv` + * pinned empty in both shapes — hermetic, like the environment). * * Both shapes spawn with an EMPTY environment (`env: {}`): the documented vm * escape reaches `process`, and the harness's ambient credentials @@ -85,19 +87,31 @@ function resolveWorkerSpawn(init: WorkerInit): { entry: URL; options: WorkerOpti if (!import.meta.url.endsWith('.ts')) { return { entry: new URL('./worker.js', import.meta.url), options: { workerData: init, env: {}, execArgv: [] } } } - // Lazy tsx resolution: only the unbuilt shape needs it, so the built - // bundle never requires tsx to be installed. TSX_TSCONFIG_PATH is the one - // variable forwarded through the scrub: tsx finds a tsconfig by searching - // UP from the worker's cwd, and a parent running with its cwd outside the - // repo (the ACP snapshot harness pins the tsconfig through this exact - // variable) would otherwise lose the dsh-* paths map and resolve workspace - // imports to unbuilt lib/ bundles. Loader plumbing, not a secret. + // Resolve tsx lazily: only the unbuilt shape executes this arm, so a built + // consumer never needs the dev-only loader installed. A JavaScript entry is + // essential — it can install tsx's ESM and CommonJS hooks from INSIDE the + // user worker before any TypeScript enters Node's native strip-only parser. + // Both hooks are load-bearing because the source graph crosses both module + // shapes on supported Node lines. TSX_TSCONFIG_PATH is + // the one variable forwarded through the scrub: a parent running outside + // the repo cwd (the ACP snapshot harness is the real case) pins the paths + // map through it. Loader plumbing, not a secret. + const workerEntry = new URL('./worker.ts', import.meta.url) + const tsxEsmApiEntry = import.meta.resolve('tsx/esm/api') + const tsxCjsApiEntry = import.meta.resolve('tsx/cjs/api') + const bootstrap = [ + `import { register as registerEsm } from ${JSON.stringify(tsxEsmApiEntry)}`, + `import { register as registerCjs } from ${JSON.stringify(tsxCjsApiEntry)}`, + 'registerCjs()', + 'registerEsm()', + `await import(${JSON.stringify(workerEntry.href)})`, + ].join('\n') return { - entry: new URL('./worker.ts', import.meta.url), + entry: new URL(`data:text/javascript,${encodeURIComponent(bootstrap)}`), options: { workerData: init, env: process.env.TSX_TSCONFIG_PATH === undefined ? {} : { TSX_TSCONFIG_PATH: process.env.TSX_TSCONFIG_PATH }, - execArgv: ['--import', fileURLToPath(import.meta.resolve('tsx'))], + execArgv: [], }, } } diff --git a/packages/workflow/workflow-workerthread/tests/source-worker.compat.spec.ts b/packages/workflow/workflow-workerthread/tests/source-worker.compat.spec.ts new file mode 100644 index 0000000000..7f34396d52 --- /dev/null +++ b/packages/workflow/workflow-workerthread/tests/source-worker.compat.spec.ts @@ -0,0 +1,38 @@ +/** + * Keyless runtime smoke for the source-mode workflow worker. The Node + * compatibility matrix runs this WHOLE file, so renaming or removing its test + * cannot turn the runtime proof into a successful zero-match filter. + */ + +import { expect, it, vi } from 'vitest' +import { Context } from 'cordis' +import { AgentId } from '@deepseek-ai/dsh-agent' +import type { Agent } from '@deepseek-ai/dsh-agent' +import SubagentService from '@deepseek-ai/dsh-subagent' +import WorkerWorkflowEngine from '../src/index.ts' + +// A fresh thread compiles the source runtime. Leave contention headroom on +// shared CI runners without weakening any engine-level timeout assertion. +vi.setConfig({ testTimeout: 30_000 }) + +it('runs the default config through the source worker', async () => { + const ctx = new Context() + const subagents = await ctx.plugin(SubagentService) + const engine = await ctx.plugin(WorkerWorkflowEngine, {}) + const parent = { id: AgentId('workflow-compat-parent'), options: {} } as unknown as Agent + try { + const run = ctx.workflows.start({ + script: 'return 6 * 7', + meta: { name: 'source-worker-compat', description: 'exercise the unbuilt worker entry' }, + parent, + }) + try { + await expect(run.result).resolves.toMatchObject({ value: 42, stopReason: 'completed', agentsStarted: 0 }) + } finally { + await run.dispose() + } + } finally { + await engine.dispose() + await subagents.dispose() + } +}) diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index d5b16a8e2f..9ccbb17a4e 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -1226,15 +1226,11 @@ describe('dsh-workflow-workerthread', () => { await second.dispose() }) - it('unregisters ctx.workflows when the engine fiber is disposed (HMR safety), and default config runs (auto concurrency)', async () => { + it('unregisters ctx.workflows when the engine fiber is disposed (HMR safety)', async () => { const ctx = new Context() await ctx.plugin(SubagentService) const fiber = await ctx.plugin(WorkerWorkflowEngine, {}) expect(ctx.get('workflows')).toBeDefined() - // A zero-agent run through the DEFAULT config exercises the auto - // concurrency resolution (cores - 2, capped) in start(). - const result = await run(ctx, fakeParent(), scripted('return 6 * 7')) - expect(result.value).toBe(42) await fiber.dispose() expect(ctx.get('workflows')).toBeUndefined() }) diff --git a/scripts/run-gates.ts b/scripts/run-gates.ts index 2f98c74eea..b26e13a56c 100644 --- a/scripts/run-gates.ts +++ b/scripts/run-gates.ts @@ -143,6 +143,11 @@ function gatesForMode(selected: Mode): Gate[] { case 'node-compat': return [ pnpmScript('typecheck', 'typecheck'), + pnpmExec('source-worker-smoke', [ + 'vitest', + 'run', + 'packages/workflow/workflow-workerthread/tests/source-worker.compat.spec.ts', + ], { label: 'source worker smoke' }), ] case 'pre-push': return [ From c5b1a7941fa5b78c2992d8c7aac02909f1176116 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 08:57:05 +0800 Subject: [PATCH 206/232] fix(scope): harden lifecycle ownership foundation Make Cordis construction and teardown ownership reentrancy-safe, then carry caller and provider ownership through reservation, setup, publication, quiescence, and sentinel retirement. Stabilize registry carriers and factory/workflow boundaries, add adversarial lifecycle regressions, and align the rewritten RFC plus generated contracts with the enforced behavior. --- docs/architecture.md | 2 +- docs/config-catalog.md | 2 +- docs/cordis-catalog/events.md | 44 +- docs/cordis-catalog/services.md | 14 +- docs/cordis-primer.md | 2 +- docs/core-data-structures/core.md | 13 + docs/core-data-structures/session.md | 14 + docs/event-producer-consumer.md | 34 +- ...-18-agent-lifecycle-and-ownership-seams.md | 2 +- .../2026-07-08-agent-scope-contexts.md | 152 ++-- .../cordis/tool-cordis/src/api-catalog.ts | 8 +- .../tests/cordis-lifecycle.spec.ts | 287 ++++++++ packages/core/agent-loop/README.md | 6 +- packages/core/agent-loop/src/agent.ts | 106 +-- packages/core/agent-loop/src/index.ts | 657 ++++++++++++++---- packages/core/agent-loop/tests/agent.spec.ts | 33 + packages/core/agent-loop/tests/resume.spec.ts | 108 +++ .../agent-loop/tests/scope-lifecycle.spec.ts | 608 +++++++++++++++- packages/core/agent/README.md | 14 +- packages/core/agent/src/dispatch.ts | 17 +- packages/core/agent/src/index.ts | 287 ++++++-- packages/core/agent/src/types.ts | 28 +- packages/core/agent/tests/agent.spec.ts | 357 +++++++++- packages/core/scope/README.md | 2 +- packages/core/scope/src/index.ts | 34 +- packages/core/scope/tests/scope.spec.ts | 56 +- packages/core/session/README.md | 6 +- packages/core/session/src/index.ts | 135 ++-- packages/core/session/tests/session.spec.ts | 116 ++++ .../subagent/subagent-inprocess/README.md | 2 +- .../workflow/workflow-workerthread/README.md | 2 +- .../workflow-workerthread/src/host.ts | 17 +- .../workflow-workerthread/src/index.ts | 11 +- .../tests/workflow-workerthread.spec.ts | 32 +- scripts/gen-cordis-catalog.ts | 3 + scripts/gen-doc-graphs.ts | 3 + scripts/type-equiv.manifest.json | 2 + vendor/README.md | 1 + vendor/cordis/src/fiber.ts | 189 ++++- 39 files changed, 2945 insertions(+), 461 deletions(-) create mode 100644 packages/cordis/tool-cordis/tests/cordis-lifecycle.spec.ts diff --git a/docs/architecture.md b/docs/architecture.md index 249765eb45..15a1142ac3 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -105,7 +105,7 @@ Every session event is turn-enclosed. Reloading a crashed session preserves the ### Agent Handles -`ctx.agents` owns live agents and returns an `AgentHandle { agent, dispose() }`. `Agent` is the API other plugins drive: `send()` queues work, `steer()` injects mid-turn content, `inject()` appends context and opens a one-shot injection turn when idle, `cancel()` is the public stop primitive, and `whenIdle()` observes quiescence. Lifecycle owners tear down with `await dispose()`. +`ctx.agents` owns live agents and returns an `AgentHandle { agent, dispose() }`. `Agent` is the API other plugins drive: `send()` queues work, `steer()` injects mid-turn content, `inject()` appends context and opens a one-shot injection turn when idle, `cancel()` is the public stop primitive, and `whenIdle()` observes quiescence. The caller fiber and concrete factory provider structurally co-own programmatic lifecycles; a consumer handle is the only non-structural teardown capability, and every owner reaches the same awaited disposer. ### Agent Scope diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 0a1c0289ae..dc766ae25f 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -144,7 +144,7 @@ export interface Config { Depends on: [`AgentId`](../packages/core/agent/src/index.ts) · [`AgentOptions`](../packages/core/agent/src/index.ts) · [`SessionId`](../packages/core/session/src/index.ts) -Source: [`packages/core/agent-loop/src/index.ts:44`](../packages/core/agent-loop/src/index.ts) +Source: [`packages/core/agent-loop/src/index.ts:119`](../packages/core/agent-loop/src/index.ts) ## `@deepseek-ai/dsh-bash-local` diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index cc450a782e..3e228405ee 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -15,7 +15,7 @@ Dispatch modes: **emit** (fire-and-forget), **waterfall** (each listener gets `n ### `agent/created` — emit -An agent's fully composed scoped world was published in the AgentRegistry. Its session is already live in the session store, but concrete factories may keep driving verbs locked until the subsequent `agent/session-start` boundary; that event is the first supported place to inject or queue work during startup. A synchronous listener throw vetoes publication and rollback emits the matching disposal edges; returned-promise rejection is observed and logged but cannot retroactively veto this synchronous boundary. +An agent's fully composed scoped world was published in the AgentRegistry. Its session is already live in the session store, but concrete factories may keep driving verbs locked until the subsequent `agent/session-start` boundary; that event is the first supported place to inject or queue work during startup. A synchronous listener throw vetoes publication and rollback emits the matching disposal edges; returned-promise rejection is observed and logged but cannot retroactively veto this synchronous boundary. A synchronous listener that requests the advanced registry detach does not remove the entry immediately: removal and the paired `agent/disposed` edge wait until the creation dispatch unwinds, so no later creation listener observes a disposal that preceded its own creation callback. ```ts cordis-catalog 'agent/created'(this: Scoped, agent: Agent): void @@ -23,11 +23,11 @@ An agent's fully composed scoped world was published in the AgentRegistry. Its s Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:303`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:307`](../../packages/core/agent/src/types.ts) ### `agent/disposed` — emit -An agent was removed from the registry after its driver and any in-flight turn reached quiescence. Ordered teardown may still be detaching the session and unwinding the agent's scoped registrations when this notification runs. +An agent was removed from the registry. The concrete AgentLoop lifecycle emits this only after its driver and any in-flight turn reach quiescence; a custom agent registered through the public registry owns its own driver contract, which the registry cannot infer. Ordered teardown may still be detaching the session and unwinding scoped registrations when this runs. ```ts cordis-catalog 'agent/disposed'(this: Scoped, agent: Agent): void @@ -35,7 +35,7 @@ An agent was removed from the registry after its driver and any in-flight turn r Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:317`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:322`](../../packages/core/agent/src/types.ts) ### `agent/error` — emit @@ -47,7 +47,7 @@ A step or turn errored. The loop reports a failure here (plus the logger) even w Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:590`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:596`](../../packages/core/agent/src/types.ts) ### `agent/pre-step` — serial @@ -61,7 +61,7 @@ Serial (awaited in registration order), not a waterfall: a listener mutates the Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:422`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:428`](../../packages/core/agent/src/types.ts) ### `agent/prompt-submit` — waterfall @@ -73,7 +73,7 @@ Waterfall: decide what happens to ONE drained queued message before it becomes a Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:440`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:446`](../../packages/core/agent/src/types.ts) ### `agent/queued` — emit @@ -85,7 +85,7 @@ A message entered the agent's inbox (queued or steering). `source` is the resolv Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:345`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:350`](../../packages/core/agent/src/types.ts) ### `agent/request` — waterfall @@ -97,7 +97,7 @@ Waterfall: shape the step's call configuration — model switching, sampling ove Types: [Agent](../core-data-structures/core.md) · [LlmCallConfig](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:469`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:475`](../../packages/core/agent/src/types.ts) ### `agent/session-prefix` — waterfall @@ -113,19 +113,19 @@ The seed is a frozen empty list; a contributing listener returns a NEW array — Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:521`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:527`](../../packages/core/agent/src/types.ts) ### `agent/session-start` — emit -The agent's session lifecycle began, fired once before its first turn. `source` says why (SessionStartSource: fresh startup, a resumed persisted session, …). A pure NOTIFICATION (emit, not waterfall): it carries no veto — a session-start listener that wants to seed context does so via `agent.inject()` (a `context/message` the first request sees), not by returning a decision. Cannot block the session from starting; that gap is deliberate (a bridge logs/injects, it does not gate startup). +The agent's session lifecycle began, fired once before its first turn. `source` says why (SessionStartSource: fresh startup, a resumed persisted session, …). A pure NOTIFICATION (emit, not waterfall): a listener cannot veto by returning a decision or throwing. A listener that wants to seed context does so via `agent.inject()` (a `context/message` the first request sees). A lifecycle owner can still dispose its structural ownership edge during this notification; publication rechecks liveness and then aborts before the driver starts. ```ts cordis-catalog 'agent/session-start'(this: Scoped, agent: Agent, source: SessionStartSource): void ``` -Types: [Agent](../core-data-structures/core.md) +Types: [Agent](../core-data-structures/core.md) · [SessionStartSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:365`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:371`](../../packages/core/agent/src/types.ts) ### `agent/status` — emit @@ -137,7 +137,7 @@ Agent status changed (`idle` ⇄ `running`, or → `disposed`). Drive lifecycle Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:331`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:336`](../../packages/core/agent/src/types.ts) ### `agent/step-result` — waterfall @@ -149,7 +149,7 @@ Waterfall: post-process the assembled assistant Message before tool dispatch (va Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:536`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:542`](../../packages/core/agent/src/types.ts) ### `agent/turn-continuation` — waterfall @@ -161,7 +161,7 @@ Waterfall: override the turn-continuation decision via a typed ContinuationDecis Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:554`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:560`](../../packages/core/agent/src/types.ts) ### `agent/turn-stop` — serial @@ -173,7 +173,7 @@ Serial terminal-stop checkpoint after the ordinary `agent/turn-continuation` wat Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:573`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:579`](../../packages/core/agent/src/types.ts) ## `approval/*` @@ -245,13 +245,13 @@ Source: [`packages/llm/llm/src/index.ts:39`](../../packages/llm/llm/src/index.ts ### `session/created` — emit -A session was created in the store. A synchronous listener throw vetoes publication and rollback emits the matching `session/disposed` edge; returned-promise rejection is observed and logged but cannot retroactively veto this synchronous boundary. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the session's owner scope, captured when the session was ENTERED (an agent's session is entered through `agent.ctx`, so its events dispatch in that agent's scope; a bare `sessions.create()` from a plain plugin dispatches subject-less). A listener registered through `agent.ctx` hears only that agent's sessions; a plain plugin listener hears every session. +A session was created in the store. A synchronous listener throw vetoes publication and rollback emits the matching `session/disposed` edge; returned-promise rejection is observed and logged but cannot retroactively veto this synchronous boundary. A synchronous listener that requests the advanced detach does not remove the entry immediately: removal and the paired `session/disposed` edge wait until the creation dispatch unwinds. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the session's owner scope, captured when the session was ENTERED (an agent's session is entered through `agent.ctx`, so its events dispatch in that agent's scope; a bare `sessions.create()` from a plain plugin dispatches subject-less). A listener registered through `agent.ctx` hears only that agent's sessions; a plain plugin listener hears every session. ```ts cordis-catalog 'session/created'(this: Scoped, session: Session): void ``` -Source: [`packages/core/session/src/index.ts:50`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:52`](../../packages/core/session/src/index.ts) ### `session/disposed` — emit @@ -261,7 +261,7 @@ A previously announced session left the store. Emitted exactly once on normal de 'session/disposed'(this: Scoped, session: Session): void ``` -Source: [`packages/core/session/src/index.ts:62`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:64`](../../packages/core/session/src/index.ts) ### `session/event` — emit @@ -273,7 +273,7 @@ An event was appended to a session log (sync, fire-and-forget). This is the per- Types: [SessionEvent](../core-data-structures/core.md) -Source: [`packages/core/session/src/index.ts:76`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:78`](../../packages/core/session/src/index.ts) ### `session/flush` — parallel @@ -283,7 +283,7 @@ Awaited durability checkpoint. The agent loop awaits `ctx.sessions.flush(session 'session/flush'(this: Scoped, session: Session): Promise | void ``` -Source: [`packages/core/session/src/index.ts:94`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:96`](../../packages/core/session/src/index.ts) ## `skill/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index b7caa6f842..1122137e1a 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -17,11 +17,11 @@ The loop itself is deliberately thin — every behavior beyond "call the model, ```ts cordis-catalog create(id: AgentId, options: AgentOptions = {}, meta: Pick = {}): ReactLoopAgent -async createAgent(options: CreateAgentOptions): Promise -async resume(options: ResumeAgentOptions): Promise +async createAgent(ownerCtx: Context, options: CreateAgentOptions): Promise +async resume(ownerCtx: Context, options: ResumeAgentOptions): Promise ``` -Source: [`packages/core/agent-loop/src/index.ts:78`](../../packages/core/agent-loop/src/index.ts) +Source: [`packages/core/agent-loop/src/index.ts:153`](../../packages/core/agent-loop/src/index.ts) ## `ctx.agents` — `AgentRegistry` @@ -39,9 +39,9 @@ get(id: AgentId): Agent | undefined list(): Agent[] ``` -Types: [Agent](../core-data-structures/core.md) +Types: [Agent](../core-data-structures/core.md) · [AgentRegistrationReservation](../core-data-structures/core.md) -Source: [`packages/core/agent/src/index.ts:202`](../../packages/core/agent/src/index.ts) +Source: [`packages/core/agent/src/index.ts:250`](../../packages/core/agent/src/index.ts) ## `ctx.approval` — `ApprovalService` @@ -222,7 +222,9 @@ list(): Session[] fork(source: SessionForkSource, boundary?: number, childSessionId?: SessionId): Session ``` -Source: [`packages/core/session/src/index.ts:663`](../../packages/core/session/src/index.ts) +Types: [SessionRegistrationReservation](../core-data-structures/session.md) + +Source: [`packages/core/session/src/index.ts:667`](../../packages/core/session/src/index.ts) ## `ctx.skills` — `SkillService` diff --git a/docs/cordis-primer.md b/docs/cordis-primer.md index b59363eea7..5b14da901c 100644 --- a/docs/cordis-primer.md +++ b/docs/cordis-primer.md @@ -27,7 +27,7 @@ The mode is part of the event's public contract. New harness events document it `ctx.waterfall` is around-middleware. A listener receives `(...args, next)`. Call `next()` to delegate the possibly wrapped result to the next service; return without `next()` to short-circuit. Values propagate through `next()`'s return value. -Cooperative listeners usually mutate a shared request or decision object and then delegate. A listener can also choose to repalce the result entirely and downstream listeners will only see the result after replacement. Use `prepend: true` only when the listener must run before ordinary registrations. +Cooperative listeners usually mutate a shared request or decision object and then delegate. A listener can also choose to replace the result entirely and downstream listeners will only see the result after replacement. Use `prepend: true` only when the listener must run before ordinary registrations. For single-decision events, short-circuiting is the design. A policy listener can return without `next()` when it owns the decision, while a listener that only annotates or observes must delegate. diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index 76ec27e744..7937018b9f 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -346,6 +346,19 @@ interface Agent { `AgentStatus` is `'idle' | 'running' | 'disposed'`. `AgentId` is a branded string. `AgentOptions` (`model?`) is merge-extensible — plugins add creation options by declaration merging; the persona is NOT an agent option but the `dsh-system-prompt` plugin's `persona` config, shared context-wide. The `agent/*` event taxonomy (lifecycle emits incl. `agent/session-start`, serial `agent/pre-step`/`agent/turn-stop` checkpoints, and the `agent/prompt-submit`/`agent/request`/`agent/session-prefix`/`agent/step-result`/`agent/turn-continuation` waterfalls) is in [architecture.md § Event taxonomy](../architecture.md#event-taxonomy); turn/step boundaries are durable `session/event` records, not `agent/*` emits. +### `AgentRegistrationReservation` — unpublished identity ownership + +An agent factory reserves its public `AgentId` before awaiting setup, so setup code cannot publish either the intended agent or a replacement under that id ahead of the transaction. The opaque capability authorizes exactly the later `enter()` call. Its `release` function is the exact Cordis owner effect disposer, letting the lifecycle adopt it by identity and place release after scope quiescence while owner disposal remains the abandoned-transaction backstop. Ordinary plugins use `register()` and never hold this type. + +Source: [`packages/core/agent/src/index.ts`](../../packages/core/agent/src/index.ts) + +```ts type-equiv +interface AgentRegistrationReservation { + readonly id: AgentId + release(): void +} +``` + ## Interception decisions Each `agent/*` interception waterfall returns a small, seam-specific typed union — the unified Decision idiom (the tool seams' `PreToolDecision`/`PostToolDecision` in [tools.md](tools.md) follow the same shape). A CC/Codex hook bridge maps its `permissionDecision`/`decision`/`continue`/`additionalContext` fields onto these; a native plugin returns them directly. They share one envelope for model-facing context, `HookContext`, which is `inject()`ed as a `context/message` and so carries a REQUIRED `source` (a missing source would default to `{kind:'user'}` and mislabel plugin context as a user prompt). diff --git a/docs/core-data-structures/session.md b/docs/core-data-structures/session.md index 1b12c3fc48..3ed02b41a9 100644 --- a/docs/core-data-structures/session.md +++ b/docs/core-data-structures/session.md @@ -196,6 +196,20 @@ export interface SurfaceNode { } ``` +## `SessionRegistrationReservation` — unpublished identity and construction ownership + +A session factory reserves its public `SessionId` before awaiting persistence load or scoped setup, so concurrent code cannot create, prepare, or enter a session under that id ahead of the transaction. The opaque capability may construct exactly one unpublished `Session` and authorizes exactly that object at `enter()`. Its `release` function is the exact Cordis owner effect disposer, letting the lifecycle adopt it by identity and place release after scope quiescence while owner disposal remains the abandoned-transaction backstop. Ordinary session consumers use `create()` and never hold this type. + +Source: [`packages/core/session/src/index.ts`](../../packages/core/session/src/index.ts) + +```ts type-equiv +interface SessionRegistrationReservation { + readonly id: SessionId + prepare(options?: CreateSessionOptions): Session + release(): void +} +``` + ## Derived history: `deriveMessages()` and `deriveEventMessage()` `Session.deriveMessages()` projects the event log into the `Message[]` the model sees — cached (each surface node projected once, when first seen; a surface rewrite rebuilds) and frozen (a fresh array per call over shared, deep-frozen messages, so mutating logged history through a projection is unrepresentable). `deriveEventMessage(event)` is the per-node pure function the fold applies — public so external reconstructors and the dev invariant project a log prefix with exactly the same rules and cannot disagree with the cache. The projection rules: diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 7b26f43b12..ec867aa709 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -7,28 +7,28 @@ This matrix shows which packages dispatch each harness-owned event and which pac | Event | Mode | Declared in | Dispatchers | Listeners | | --- | --- | --- | --- | --- | -| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:303`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:317`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`emit`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:590`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:422`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic), [`user-approval`](../packages/ui/user-approval) | -| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:440`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | -| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:345`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:469`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:521`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`tool-skill`](../packages/skill/tool-skill) | -| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:365`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`invariants`](../packages/support/invariants) | -| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:331`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:536`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:554`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `agent/turn-stop` | `serial` | [`packages/core/agent/src/types.ts:573`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`strictSerial (serial)`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | +| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:307`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:322`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:596`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:428`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic), [`user-approval`](../packages/ui/user-approval) | +| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:446`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | +| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:350`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:475`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:527`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`tool-skill`](../packages/skill/tool-skill) | +| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:371`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`invariants`](../packages/support/invariants) | +| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:336`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:542`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:560`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/turn-stop` | `serial` | [`packages/core/agent/src/types.ts:579`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`strictSerial (serial)`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | `approval/request` | `waterfall` | [`packages/ui/user-approval/src/index.ts:72`](../packages/ui/user-approval/src/index.ts) | [`user-approval`](../packages/ui/user-approval) (`waterfall`) | [`acp`](../packages/ui/acp) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/write-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:109`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `llm/stream` | `waterfall` | [`packages/llm/llm/src/index.ts:39`](../packages/llm/llm/src/index.ts) | [`llm`](../packages/llm/llm) (`waterfall`) | [`invariants`](../packages/support/invariants), [`llm-replay`](../packages/support/llm-replay) | -| `session/created` | `emit` | [`packages/core/session/src/index.ts:50`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence) | -| `session/disposed` | `emit` | [`packages/core/session/src/index.ts:62`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | - | -| `session/event` | `emit` | [`packages/core/session/src/index.ts:76`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence), [`stdio-agent`](../packages/ui/stdio-agent) | -| `session/flush` | `parallel` | [`packages/core/session/src/index.ts:94`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | +| `session/created` | `emit` | [`packages/core/session/src/index.ts:52`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence) | +| `session/disposed` | `emit` | [`packages/core/session/src/index.ts:64`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | - | +| `session/event` | `emit` | [`packages/core/session/src/index.ts:78`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence), [`stdio-agent`](../packages/ui/stdio-agent) | +| `session/flush` | `parallel` | [`packages/core/session/src/index.ts:96`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | | `skill/provider-added` | `emit` | [`packages/skill/skill/src/index.ts:132`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | | `skill/provider-removed` | `emit` | [`packages/skill/skill/src/index.ts:138`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | | `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:115`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | diff --git a/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md b/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md index 8e1acd1638..b727e357ee 100644 --- a/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md +++ b/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md @@ -16,7 +16,7 @@ A new `cancel()` verb on the `Agent` interface — the single public stop primit ### 2. `AgentHandle` async disposer -`ctx.agents.create`/`resume` (and the `AgentFactory` interface) return `AgentHandle = { agent: Agent; dispose(): Promise }`. The disposer is a **capability** — only the holder can tear down exactly this agent: stop its loop, `await` the loop's exit (true quiescence, not just the `disposed` status flip), unregister it, and remove its session from the store. `ctx.agents.get(id)` still returns a bare `Agent`. Config-created agents stay owned by the `AgentLoop` fiber (the handle is discarded). ACP holds each session's disposer in its `SessionRecord` and runs it on disconnect/teardown, so a bare client disconnect leaves no registered agent and no session-store entry — even when `session/load` races teardown (the just-resumed handle is disposed before the closed-guard throw). +`ctx.agents.create`/`resume` (and the `AgentFactory` interface) return `AgentHandle = { agent: Agent; dispose(): Promise }`. The disposer is a **consumer capability** — a registry observer holding only the bare `Agent` cannot tear it down. The caller fiber and registered factory provider are structural co-owners: caller unload enforces structured ownership, while provider unload must stop old instances whose scoped dependency surface resolves through that provider. All three paths reach the same memoized teardown: stop the loop, `await` its exit (true quiescence, not just the `disposed` status flip), unregister it, remove its session from the store, unwind its scope, and only then release both public IDs. Config-created agents are already owned by the `AgentLoop` fiber (the handle is discarded). ACP holds each session's disposer in its `SessionRecord` and runs it on disconnect/teardown, so a bare client disconnect leaves no registered agent and no session-store entry — even when `session/load` races teardown (the just-resumed handle is disposed before the closed-guard throw). **Teardown ORDER is load-bearing for durability**, and the implementation folds the session lifecycle into the agent's SINGLE composite cordis effect (`SessionStore.prepare`/`enter`/`announce`, replacing a sibling-effect split). A fiber unload disposes sibling effects concurrently (`Promise.all`), which would race detaching the session store's private append observer against the loop's closing `session/flush` and drop the closing `turn/end`; inside one effect the disposers run as an ordered LIFO chain (loop stopped + `await agent.done` BEFORE the session detaches), so the loop's final flush is captured on BOTH the handle's `dispose()` and a fiber unload. The contained `agent/disposed` and `session/disposed` notifications cannot reject the chain or skip later teardown. diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index 436a208be8..c29fb4f83b 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -27,18 +27,19 @@ The subagent API makes these requirements concrete. Two concurrent children can Each live agent owns a registration context named `agent.ctx`, and services expose narrow owner-final policy boundaries where ordinary middleware ordering is not strong enough. Together these choices make one agent's world composable with normal plugin APIs while keeping authority, observation, and cleanup aligned. -The design has four parts: +The design has five parts: | Part | Rule | Purpose | |---|---|---| | Registration scope | A registration through a plain plugin context is global; the same registration through `agent.ctx` belongs to that agent | Reuse existing APIs for per-agent tools, prompt state, and listeners | -| Lifecycle transaction | Create and resume await scoped setup while the agent and session are unpublished, then publish them in an ordered rollback-covered sequence | No observer sees a partially composed agent, and every failure path owns cleanup | +| Lifecycle transaction | Caller and factory ownership cover create and resume from reservation or load through scoped setup, ordered publication, and teardown | No observer sees a partially composed agent, and caller or provider loss cannot orphan work | +| Lifecycle foundation | Effects become owner-visible before setup, child fibers become parent-owned before publication, and unloading fibers reject late effects | Reentrant HMR cannot strand a half-built or cleanup-time registration outside the unload snapshot | | Owner-final policy | Prompt protection, tool guards, final tool-result observation, and terminal turn stopping run at service-owned boundaries | Invariants do not depend on listener registration order | | Boundary ownership | Services capture fixed fields once, materialize lossless-JSON data once, and publish owner-controlled views | Validation, execution, persistence, and telemetry cannot observe different values from one call | Three domain terms recur below. A **Session** is one agent run's append-only event log, from which model history and durable replay are derived. **Lossless JSON** means JSON primitives plus dense arrays and plain objects that can be copied without changing meaning; the boundary rejects sparse arrays, cycles, exotic prototypes, non-finite numbers, negative zero, `undefined`, `bigint`, functions, and symbols instead of coercing or erasing them. **Code Mode** presents the model with a generated software-development-kit interface and a reserved `run_code` transport, rather than advertising every end-capability as a native tool. -Ownership stays with the component that can enforce each fact. The scope package owns scope tags and carrier construction; each registry owns acceptance snapshots and resolution; the agent factory owns identity reservation, setup, and publication; the session owns accepted history; the tool and subagent services own their pipeline records; and the workflow host owns cancellation of the runs it started. A caller never validates a value that another component later rereads from the caller's mutable object. +Ownership stays with the component that can enforce each fact. The scope package owns scope tags and carrier construction; each registry owns acceptance snapshots and resolution; the caller owns the programmatic agent lifetime it requested; the concrete agent factory owns identity reservation, setup, publication, and structural invalidation of agents that still depend on it; the session owns accepted history; the tool and subagent services own their pipeline records; and each workflow run captures its holder-bound dependencies and owns its cancellation after the engine returns it. A caller never validates a value that another component later rereads from the caller's mutable object. The scope is flat. An agent resolves the deployment-global layer plus its own layer; a child does not inherit registrations from its parent's scope. Parent/child lineage remains explicit session data, and parent-owned disposal links lifetimes without silently inheriting authority. @@ -54,10 +55,14 @@ A Cordis `Context` is the object through which a plugin reaches services such as A context also carries a capability view. A derived context reaches the services injected into the plugin that created it. Handing out `agent.ctx` therefore hands out the agent loop's injected service surface; it is not an ambient root context. +Factory delegation uses two contexts whose jobs must remain separate. The registry derives a caller-bound context carrying the fiber and scope from which `ctx.agents.create()` or `resume()` was called and passes it explicitly as `ownerCtx`; those facts identify the fiber and optional parent agent that own the requested lifetime. When the registered factory is itself a Cordis service, the registry also invokes it through a traced receiver, which preserves the factory's own injected dependency origin. A plain object that merely implements the factory methods receives the same explicit `ownerCtx` without depending on Cordis tracing. Conflating these roles would either attach the agent to the factory registrant instead of the caller or make the concrete loop resolve dependencies from the wrong service view. + ### Effects give registrations an owner A Cordis effect is work whose cleanup belongs to a runtime unit called a fiber. Tool registration, prompt contribution, and event subscription are effects, so disposing their fiber unwinds them on normal teardown, failure, or hot reload. +Ownership must exist before effect setup can call arbitrary code. The vendored Fiber implementation therefore places an effect's cleanup wrapper in the owner list before running its setup body; a reentrant unload sees that in-construction effect and waits for setup plus every cleanup it collected. A child fiber likewise receives its parent-owned disposer before `internal/plugin` announces the child. Teardown delivers that notification with per-observer failure containment so one callback cannot starve peers or interrupt cleanup. Effects remain legal while a fiber is pending or loading, because setup needs them, but a fiber already unloading rejects new effects: its cleanup snapshot has been taken, so accepting another registration would strand it in the old epoch. + `dsh-scope` mounts a no-op plugin fiber for each scope. The plugin contributes no behavior; its fiber is the ownership bucket for everything registered through the scoped context. ### A waterfall is ordered around-middleware @@ -125,7 +130,7 @@ The property is deliberately not treated as the authoritative scope tag. A neste | `Scope.dispose()` | Give ordinary callers an idempotent promise shared by repeat and racing calls until quiescence | | `Scope.rawDispose` | Expose the exact Cordis disposer so a larger generator lifecycle can nest it at a precise teardown position | -The two disposal forms solve different framework constraints. Cordis identifies nested effects by disposer-function identity, so an ordered composite lifecycle must yield `rawDispose` exactly. Cordis disposers are also single-shot, so a second raw call may not await the first asynchronous teardown; `Scope.dispose()` follows the backing fiber's in-flight lifecycle and gives all ordinary callers the same quiescence boundary, including a race in which `rawDispose` started first. The test/tooling `ScopeHost.dispose()` extends that shared boundary across its host fiber and every minted child scope. +The two disposal forms solve different framework constraints. Cordis identifies nested effects by disposer-function identity, so an ordered composite lifecycle must yield `rawDispose` exactly. Cordis disposers are also single-shot, so a second raw call may not await the first asynchronous teardown; `Scope.dispose()` follows the backing fiber's in-flight lifecycle and gives all ordinary callers the same quiescence boundary, including a race in which `rawDispose` started first. The test/tooling `ScopeHost.dispose()` extends that shared boundary across its host fiber and every minted child scope. Pre-registration of an effect wrapper solves a different race: it makes the first owner unload see construction in progress without changing this single-shot raw-disposer contract. The primitive itself is small. Its essential implementation shape is: @@ -245,72 +250,92 @@ The real helpers fuse values that must agree. `agentEvents(context, agent)` uses Function-style listeners receive the carrier as `this`, and agent event APIs allow them to call subject methods. The carrier is therefore a JavaScript proxy that reads and writes through to the real subject and binds methods to it. -Binding matters for classes with JavaScript private fields: a method called with the proxy itself as receiver would fail the runtime private-field identity check. The carrier therefore uses a dedicated surrogate proxy target with its own immutable composed-filter slot, while ordinary property access, writes, own-key visibility, methods, invocation, and construction delegate to the real subject; callable carriers also preserve whether the subject is constructable. For non-overlay properties owned by the subject, descriptor queries preserve values and flags except that `configurable` is reported as `true`, which is the Proxy-safe way for an extensible surrogate to expose a property it does not itself own. A filter property pinned on the subject before, during, or after construction cannot trigger the proxy invariant that would otherwise force delivery to use the subject's raw filter and silently drop scope isolation. The carrier is intentionally not identity-equal to the subject; event arguments carry the real object whenever identity matters. +Binding matters for classes with JavaScript private fields: a method called with the proxy itself as receiver would fail the runtime private-field identity check. The carrier therefore uses a dedicated surrogate proxy target with its own immutable composed-filter slot, while ordinary property access, writes, own-key visibility, methods, invocation, and construction delegate to the real subject; callable carriers also preserve whether the subject is constructable. + +The composed filter is an authorization boundary, not an ordinary exposed callback. It invokes a subject's pre-existing filter with stable references to the built-in `Reflect.apply` and `Function.prototype.call` operations, pins its own `.call` to that captured built-in, and freezes the callable. Code holding the subject or carrier therefore cannot replace either `.call` property to turn a scoped predicate into an always-allow predicate. Keeping the filter on the surrogate also means a filter property pinned on the subject before, during, or after carrier construction cannot trigger a Proxy invariant that silently replaces scope isolation with the subject's raw filter. + +The surrogate must remain extensible so its reported own-key view can follow the subject. For non-overlay properties owned by the subject, descriptor queries preserve values and flags except that `configurable` is reported as `true`, which is the only Proxy-safe description of a property the extensible surrogate does not itself own. For the same reason, defining a property through the carrier is supported only when the descriptor explicitly says `configurable: true`; an omitted or false flag is rejected before the subject is touched. The carrier is intentionally not identity-equal to the subject; event arguments carry the real object whenever identity matters. `Scoped` is a TypeScript-only marker that requires this carrier at declared scoped dispatch sites. It improves authoring but adds no runtime security, so runtime marks and development invariants check the same contract for JavaScript, casts, and hand-written dispatches. ## Agent creation and teardown -An agent's scope, session, registry entry, and driver form one owned transaction. Setup finishes before publication, publication is synchronous and rollback-covered rather than magically atomic, and teardown reaches one ordered quiescent boundary. +An agent's scope, session, registry entry, and driver form one transaction with two ownership edges. The caller context owns the work it requested and receives the only consumer-facing teardown capability; the concrete `AgentLoop` provider is a structural co-owner because the live agent continues to use the provider's injected services. Either edge deactivates the transaction and converges on the same ordered, memoized quiescence boundary. Setup finishes before publication, and publication is synchronous and rollback-covered rather than magically atomic. ### Create and resume reserve identities before asynchronous work Programmatic create and resume reserve both the agent ID and session ID before work that can await. Create prepares a fresh or seeded session; resume first loads and reconstructs the persisted session. Both paths then construct the agent, mint `agent.ctx`, and install the complete teardown skeleton before awaiting setup. +The registry treats the factory seam as an untrusted runtime boundary. A TypeScript interface checks source code but does not constrain the JavaScript object received at runtime, which may expose stateful getters. `setFactory()` therefore claims the single factory slot before reading method accessors, canonicalizes an already traced Cordis service to its concrete target, then captures that target plus the `createAgent` and `resume` callback identities once. A getter cannot reenter `setFactory()` and replace the outer factory while it is being accepted, later method replacement cannot redirect calls, and a service proxy cannot accumulate a second trace layer that breaks raw-identity state. On each call, the registry passes a caller-bound context carrying the accessing fiber and scope as `ownerCtx`, retraces the concrete service target exactly once through that context, and invokes the captured callback with both pieces. The explicit argument binds ownership; the traced receiver preserves the factory's dependency origin. + The factory first captures the requested IDs, setup callback, and caller-owned agent options. Seed events and session metadata take a stricter route than a preliminary clone: cloning can erase an exotic prototype before validation sees it, so the factory reads each reference once and hands it synchronously to the session store's reservation-bound prepare operation. That boundary rejects exotic shells, reads accepted metadata fields once, and recursively materializes each seed record in one pass. Resume applies the same rule to persistence output by capturing the loaded header fields once before reconstruction. The transaction therefore cannot move to different identities, storage routing, or lineage after an asynchronous boundary. Before setup can observe the new objects, their ownership-bearing public properties become stable runtime data slots rather than TypeScript-only `readonly` promises. The concrete agent pins its ID, accepted options, and session; the factory binds its scope context exactly once. The session pins its ID and detached, deep-frozen header. Registry detach closures likewise close over their accepted map keys instead of rereading public properties during teardown. A JavaScript assignment or stateful accessor therefore cannot split registry lookup, dispatch, persistence, and the driver into different identities. The session owns the accepted log as described in [the session-immutability RFC](2026-06-11-dev-invariants-over-deep-readonly.md). Seed and append paths materialize lossless JSON once, validate both the event envelope and the metadata that places message-producing events into derived model history, and deep-freeze the exact accepted event. `session.events` returns a frozen snapshot that never grows later. The store keeps append notification and scope-carrier state in store-owned private tables instead of caller-writable `Session` fields, so outside JavaScript cannot suppress or redirect `session/event` dispatch. -Reservations prevent two concurrent factory transactions from composing different unpublished objects under the same public identities. Each reservation belongs both to the factory transaction and to the Cordis fiber that requested it: explicit release covers every success or failure path, while owner-fiber disposal is the backstop for an abandoned handle during plugin unload or HMR. The agent registry and session store recognize their own reserved keys: setup code that calls public reserve, prepare, create, register, or bare enter APIs with the same IDs fails. The session capability can prepare exactly one object, and publication succeeds only when both stores receive the factory-held exact capabilities; the session store additionally checks that the capability owns that exact prepared session. This closes the otherwise possible path in which setup publishes a substitute object under an ID that the factory merely tracked in a separate pending set, without letting a vanished owner wedge the ID forever. +Reservations prevent two concurrent factory transactions from composing different unpublished objects under the same public identities. Each capability's `release` is its exact Cordis effect disposer. Before asynchronous work, the owning sentinel adopts those functions by identity, removing them from the caller fiber's concurrent sibling list; teardown reaches them only after the transaction's driver, registry entries, session, and scope have quiesced. Explicit release covers pre-lifecycle failure and the ordered final step, while the owning fiber remains the backstop for an abandoned transaction. The concrete factory also tracks the whole create transaction before reservation and session preparation begin, and keeps that structural edge through reservation release. Provider unload first stops the factory from accepting work, then aborts or drains every tracked transaction before its dependency surface disappears. -Resume installs an owner-liveness sentinel before reserving IDs or starting persistence I/O, then races loading against owner disposal. If disposal wins, resume rejects and releases both reservations immediately; a backend promise that settles later cannot publish. After a successful load, the factory synchronously installs the full agent lifecycle before removing the sentinel, so ownership passes from load to setup without an unobserved disposal gap. +The agent registry and session store recognize their own reserved keys: setup code that calls public reserve, prepare, create, register, or bare enter APIs with the same IDs fails. The session capability can prepare exactly one object, and publication succeeds only when both stores receive the factory-held exact capabilities; the session store additionally checks that the capability owns that exact prepared session. This closes the otherwise possible path in which setup publishes a substitute object under an ID that the factory merely tracked in a separate pending set, without letting a vanished owner wedge the ID forever. -The sentinel exists only for the interval in which no agent lifecycle can exist yet: +Resume needs an ownership edge before an agent object exists. It reserves the identities, then installs a caller-liveness sentinel that adopts both exact reservation disposers before persistence I/O; a factory-tracked load transaction supplies the provider edge. If either owner wins, resume rejects, waits for the load transaction to settle, and only then releases both reservations; a backend promise that settles later cannot publish. After a successful load, `startOwned` synchronously returns both the complete lifecycle disposer and the asynchronous setup/publication result. Even a preparation failure is represented by a disposer-backed result, so the load sentinel can hand off to a real quiescence boundary instead of mistaking an async function's rejected promise for successful installation. The load tracker remains until the surrounding transaction settles, while the load and caller sentinels remain lifecycle-long followers, so no ownership or ID-release gap opens. Once the shared lifecycle quiesces, each sentinel first disarms its follower and then removes its owner-fiber effect; long-lived callers therefore do not retain completed agents, scopes, or reservation closures. + +The load sentinel changes what it follows at handoff but remains an owner-visible boundary: ```text -resume(request): +resume(ownerCtx, request): snapshot request ids, options, and setup callback - sentinel = owner.effect(onDispose => signal ownerDisposed) reservations = reserve agentId in AgentRegistry and sessionId in SessionStore + sentinel = ownerCtx.effect( + onDispose => abort and await load settlement before reservation release, + adopt exact reservation disposers) + loadTransaction = factory.track(onDispose => signal deactivated and await settlement) try: - persisted = await firstOf(persistence.load(sessionId), ownerDisposed) + persisted = await firstOf(persistence.load(sessionId), deactivated) session = reservations.session.prepare(reconstruct persisted data) - # This call installs the full lifecycle before its first await. - starting = startOwned(agentId, session, options, reservations, setup) - disarm and dispose sentinel - return await starting + # This synchronous call returns a lifecycle boundary even when preparation fails. + starting = startOwned(ownerCtx, agentId, session, options, reservations, setup) + sentinel.follow(starting.dispose) + return await starting.result finally: - release both reservation capabilities - settle the sentinel transaction + release directly only if no lifecycle boundary was established + settle and untrack the load transaction ``` -If `ownerDisposed` wins, the load promise may continue inside the backend, but it has no path back to publication. +If deactivation wins, the load promise may continue inside the backend, but it has no path back to publication. ### Setup composes an unpublished world The optional `setup(agentCtx)` callback receives the new agent context and may synchronously register contributions or await child-plugin activation. During setup, neither the session nor agent is visible through its global registry, but `agentCtx.agent` exposes the unpublished agent to the code composing it. -Setup may register scoped tools, prompt sections, variables, restrictions, listeners, protections, or child plugins. If it throws or rejects, the scope unwinds without publishing either object, and the reserved IDs become reusable. If the owner unloads during an await, the preinstalled teardown skeleton marks the transaction inactive; late setup completion cannot publish. +Setup may register scoped tools, prompt sections, variables, restrictions, listeners, protections, or child plugins. If it throws or rejects, the scope unwinds without publishing either object, and the reserved IDs become reusable. If either the caller owner or concrete factory unloads during an await, the preinstalled teardown skeleton marks the transaction inactive; late setup completion cannot publish. -After setup settles, the factory yields one microtask checkpoint and rechecks the lifecycle flag, owner-fiber state, and owning agent's disposed state. Cordis begins owner unload synchronously but may run nested effect disposers in the next microtask; the explicit owner checks and checkpoint let a same-turn unload win instead of allowing an immediately fulfilled setup to publish an already-doomed agent. +Both structural edges exist before driver preparation or scope minting. The provider uses a tracked placeholder, while the caller gets a lifecycle-long sentinel that adopts the reservation effects and resolves to the same memoized lifecycle disposer. If `internal/plugin` reentrantly unloads either owner while the scope fiber is being constructed, Cordis has already attached the child disposer to its parent and the sentinel waits until preparation publishes either the complete lifecycle or a rollback disposer. A failure halfway through preparation therefore leaves both owners with a quiescence boundary for the prepared driver, minted scope, and reservations. + +The factory checks liveness before invoking arbitrary setup. After setup settles, it yields one microtask checkpoint and checks the lifecycle flag, factory state, caller-fiber state, and the owner context's associated agent state again. Cordis begins owner unload synchronously but may run nested effect disposers in the next microtask; the explicit checks and checkpoint let a same-turn unload win instead of allowing an immediately fulfilled setup to publish an already-doomed agent. Setup composes but does not drive. The concrete agent rejects `send`, `steer`, `inject`, and `cancel` until publication reaches the session-start boundary, keeps its inbox in a JavaScript native-private field, and allows only one concrete driver to claim a session. Driver startup is absent from the package surface: the package exports neither its loop/inbox internals nor source subpaths, and only instance-bound controls held by the factory can enable and start the driver. JavaScript or a type cast therefore cannot bypass the lock by calling a public `start()` or writing directly into the queue. These boundaries prevent a turn from opening before lifecycle listeners know the session exists. The common create/resume tail makes the unpublished boundary explicit: ```text -startOwned(snapshot, preparedSession): - world = prepareLifecycle(snapshot, preparedSession) - # world now owns agent.ctx and the complete rollback/teardown skeleton - +startOwned(ownerCtx, snapshot, preparedSession): try: + world = prepareLifecycle(ownerCtx, snapshot, preparedSession) + # Factory placeholder, lifecycle-long caller sentinel, reservation adoption, + # and complete rollback/teardown skeleton all exist before the first await. + catch preparationError with rollbackBoundary: + return { dispose: rollbackBoundary, + result: await rollbackBoundary then reject original error } + + result = async: + require world.lifecycleActive await firstOf(snapshot.setup(world.agent.ctx), world.deactivated) await oneMicrotask() require world.lifecycleActive + require world.factoryActive require world.ownerFiberActive require world.ownerAgentNotDisposed @@ -319,60 +344,82 @@ startOwned(snapshot, preparedSession): catch error: await world.dispose() throw error + + return { dispose: world.dispose, result } ``` `setup` can await arbitrary plugin activation, but every exit still passes through the already-installed disposer. ### Publication is ordered and rollback-covered -After setup succeeds, the factory publishes in one synchronous sequence with no `await` between steps: +After setup succeeds, the factory publishes in one synchronous sequence with no `await` between steps. Each registry has already claimed its ID across every caller-code boundary needed to construct a stable entry: the agent registry pins the accepted ID and captures one lifecycle carrier while its claim is held, and the session store holds the same kind of claim while evaluating its filter and carrier. A Proxy trap or filter getter can therefore neither overwrite a reentrant same-ID entry nor create a stale detach capability that later deletes another object. Liveness checkpoints then divide publication into three notification phases, and an outer publication barrier keeps teardown from revoking either registry entry or the scope while one of those phases is on the stack: 1. Enter the session store and capture its scope carrier. 2. Enter the agent registry without announcing it. -3. Emit `session/created`. -4. Emit `agent/created`. -5. Enable driving. -6. Emit `agent/session-start`. -7. Start the driver loop. +3. Recheck caller and factory liveness; entering either registry may have evaluated a caller-owned getter that began teardown. +4. Emit `session/created`. +5. Recheck liveness; if teardown began, skip the agent announcement and roll back. +6. Emit `agent/created`. +7. Recheck liveness; if teardown began, keep driving locked and roll back. +8. Enable driving. +9. Emit `agent/session-start`. +10. Recheck liveness; if teardown began, roll back without starting the driver. +11. Start the driver loop. The implementation keeps publication synchronous and leaves rollback to the surrounding owned transaction: ```text publish(world): - world.detachSession = world.agent.ctx.sessions.enter(world.session, world.sessionReservation) - world.detachAgent = app.agents.enter(world.agent, world.agentReservation) - app.sessions.announce(world.session) - app.agents.announce(world.agent) - world.driver.enableDrivingVerbs() - emitNonVetoing(agent/session-start) - world.stopDriver = world.driver.start() + world.beginSynchronousPublication() + try: + world.detachSession = world.agent.ctx.sessions.enter(world.session, world.sessionReservation) + world.detachAgent = app.agents.enter(world.agent, world.agentReservation) + require world.callerAndFactoryActive + app.sessions.announce(world.session) + require world.callerAndFactoryActive + app.agents.announce(world.agent) + require world.callerAndFactoryActive + world.driver.enableDrivingVerbs() + emitNonVetoing(agent/session-start) + require world.callerAndFactoryActive + world.driver.start() + finally: + world.endSynchronousPublication() ``` -Both registry entries exist before the first creation listener runs, and setup-installed listeners receive both announcements. Driving opens immediately before `agent/session-start`, so that event remains the first supported place for a listener to inject or queue startup work. +Both registry entries exist before the first creation listener runs, and setup-installed listeners receive every announcement that publication reaches. Driving opens immediately before `agent/session-start`, so that event remains the first supported place for a listener to inject or queue startup work. A synchronous teardown request from any notification marks the lifecycle inactive immediately, which makes the next checkpoint abort, but actual loop, registry, session, and scope cleanup waits until the current synchronous notification phase and publication call stack unwind. Teardown itself therefore cannot make a later listener that still runs observe a different world; teardown from `session/created` prevents `agent/created`, teardown from `agent/created` prevents session start, and teardown from `agent/session-start` prevents the driver from starting. The sequence is not described as atomic because observers run between its steps. If a `session/created` or `agent/created` listener throws synchronously, the transaction rolls the registry entries and scope back, but effects already performed by an earlier listener cannot be retracted. Each store therefore marks its announcement as begun before invoking creation listeners and rejects a repeat or reentrant announcement before dispatch. Rollback emits `session/disposed` or `agent/disposed` exactly once for every corresponding creation announcement that began, including a partial emit in which an early listener observed creation before a later listener threw. An object entered but never announced has no disposal notification because no observer was told it existed. +Each registry also protects ordering inside its own creation phase. If a listener uses an advanced detach capability while `session/created` or `agent/created` is dispatching, removal and the paired disposal edge are deferred until that dispatch unwinds. The agent's creation and disposal edges reuse the carrier captured before commit instead of rebuilding it from a mutable filter getter. A detach request therefore cannot make a later listener observe `created` after `disposed`, find the just-created entry missing, or trigger disposal while creation is still constructing its receiver. Exact-object guards on both detach paths are the final defense against a stale capability deleting a later same-ID entry. The factory's outer publication barrier is the cross-registry complement: caller or provider teardown cannot remove the other entry or unwind `agent.ctx` while the current phase is still running. + Creation notification preserves that synchronous veto while also defending against JavaScript's asynchronous callback shape. A listener may return a promise even though the event type returns `void`; the dispatcher does not await it because publication has no asynchronous gap, but it observes and logs a later rejection. Such a rejection is too late to roll back, does not become unhandled, and does not starve the listeners invoked after that callback. -The disposal notifications and `agent/session-start` are deliberately non-vetoing. Their dispatchers invoke every listener synchronously and independently; they log and contain both a synchronous throw and a rejection from a returned promise. Returned promises are observed for failure but not awaited, so an asynchronous notification listener cannot delay rollback or teardown, veto driver startup, or starve a later listener. +The disposal notifications and `agent/session-start` do not treat return values or listener failures as vetoes. Their dispatchers invoke every listener synchronously and independently; they log and contain both a synchronous throw and a rejection from a returned promise. Completion or rejection of a returned promise is observed but not awaited, so it cannot delay rollback or teardown, veto driver startup, or starve a later listener. The callback's synchronous prefix remains ordinary code: if it holds and disposes a structural ownership edge, the next publication liveness check deliberately aborts startup. ### Teardown stops work before revoking its world -Every owner path uses the same reverse order: stop the loop and await its actual exit plus every agent-started durability checkpoint, remove the agent from the registry, detach the session, then unwind the scope. Final turn events, the turn-ending flush, and any outstanding idle-injection flush therefore settle while the session and scoped listeners are still live. +Every owner path reaches the same memoized reverse order: the consumer handle, caller-fiber disposal, and structural factory-provider unload first deactivate the lifecycle; wait for an in-progress synchronous publication phase; stop the loop and await its actual exit plus every agent-started durability checkpoint; remove the agent from the registry; detach the session; unwind the scope; and only then release both IDs. Final turn events, the turn-ending flush, and any outstanding idle-injection flush therefore settle while the session and scoped listeners are still live, and a replacement cannot reuse either identity while old scoped cleanup remains in flight. ```text disposeOwnedAgent(world): + mark world inactive + await world.synchronousPublicationIfRunning() await world.stopDriver() # waits for loop exit and all agent-started flushes world.detachAgent() # leaves registry; emits agent/disposed if announced world.detachSession() # stops event feed, leaves store; emits session/disposed if announced await world.scope.dispose() + world.releaseSessionReservation() + world.releaseAgentReservation() ``` The actual Cordis generator yields these disposers in reverse so its last-in-first-out teardown executes in the order shown. -`agent/disposed` means the driver is quiescent and the agent has left the registry; the session is still live during that notification. `session/disposed` follows after append notification has been detached and the session has left its store. The scope is still live when each disposal listener is selected and invoked, although returned asynchronous work is observed rather than awaited. Both notifications use the same scope key and delivery rule as their creation partners and occur exactly once only when those creation announcements began. +For the concrete AgentLoop transaction, `agent/disposed` runs after the driver is quiescent and the agent has left the registry; the session is still live during that notification. The public AgentRegistry alone promises only exact removal, because a custom registered `Agent` owns any stronger driver contract itself. `session/disposed` follows after append notification has been detached and the session has left its store. The scope is still live when each disposal listener is selected and invoked, although returned asynchronous work is observed rather than awaited. Both notifications use the stable scope key and delivery rule captured for their creation partners and occur exactly once only when those creation announcements began. -`AgentHandle.dispose()` is memoized so concurrent owners await the same full transaction, and `Scope.dispose()` provides the corresponding shared boundary for direct scope disposal and raw-disposer races. +`AgentHandle.dispose()` is memoized so repeated consumer calls await the same full transaction. The lifecycle-long caller sentinel independently follows that memoized promise, so handle-first teardown cannot make a racing caller-fiber unload observe Cordis's inert second raw-disposer call and return early. Once the transaction reaches its final quiescent stage, retirement disarms and removes the sentinel before settling that shared promise. `Scope.dispose()` provides the corresponding shared boundary for direct scope disposal and raw-disposer races. The provider's ownership ledger is internal rather than another public handle: it stops accepting new transactions, invokes every tracked disposer independently, and waits for all of them before the AgentLoop service surface disappears. + +Provider co-ownership is specific to resources that remain structurally dependent on their provider. An AgentLoop-created agent continues to resolve the loop's injected services, so loop unload must stop it. A worker workflow run instead captures its holder-bound `SubagentService` handle synchronously at `start()` and stores that independent dependency on the run; unloading `WorkerWorkflowEngine` removes the ability to start new runs but does not revoke an already returned run or prevent its later worker message from starting a child. The two lifetimes differ by dependency shape, not by a blanket rule that every service must own every value it creates. Parent-owned subagents use explicit ownership rather than capability inheritance. The driver creates one run-owner fiber under `parent.ctx` and invokes the child factory through that fiber, so lifecycle ownership exists before setup or publication begins; disposing a parent reaches its descendants even if a delegating tool never reaches its own `finally`. The child still receives a newly minted scope and resolves only global plus child-scoped capabilities. @@ -564,7 +611,7 @@ Provider registration first freezes an acceptance snapshot of the provider name, Starting a run reads every top-level request field once before capability validation, then snapshots every accepted field before asynchronous owner setup. This order makes checked and delegated capabilities identical even for a JavaScript caller with stateful accessors. Fixed scalars are checked at the same boundary: `maxDepth` must be a non-negative safe integer and `persona` must be a string. The parent and abort signal are retained as identity capabilities but never reread from the mutable request record; tool filters, seed events, agent options, output schema, and prompt are detached through the one-pass lossless-JSON materializer. The exported in-process driver repeats this boundary for direct callers before it awaits run-owner activation, including taking one seed snapshot from which it derives both the child prefix and `seedLength`. Later caller mutation therefore cannot change lifecycle scope, configuration, the schema enforced by the capture tool, or the prompt eventually logged and sent. -The driver first installs provider ownership. Only after that succeeds does it attach the request's abort listener and create one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves neither a child nor an orphaned listener. The child factory runs through the owner fiber. Parent teardown, provider teardown, and manual run disposal all dispose this same node; moving it out of the active state synchronously prevents an unpublished setup from publishing afterward, while all three paths follow one quiescence promise. This structured ownership does not change the child's flat capability view. +The driver first installs provider ownership. Only after that succeeds does it attach the request's abort listener and create one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves neither a child nor an orphaned listener. Calling `runOwner.ctx.agents.create()` gives the child factory an explicit `ownerCtx` carrying the run-owner fiber and scope, while the registry's traced factory receiver preserves AgentLoop's injected dependency origin. Parent teardown, provider teardown, and manual run disposal all dispose this same run-owner node; moving it out of the active state synchronously prevents an unpublished setup from publishing afterward, while all three paths follow one quiescence promise. This structured ownership does not change the child's flat capability view. The provider's run separates acceptance from publication with `started: Promise`, but the service does not expose that caller-owned handle directly. It captures `id`, `started`, `result`, and each method once, binds methods to the provider-owned run handle, and returns a frozen service-owned wrapper. Capturing `dispose` first also preserves a rollback capability if a later accessor or method check reveals a malformed handle. @@ -624,7 +671,9 @@ Before publishing the workflow's own result: Every downstream protocol that announces a subagent must honor the same boundary. The workflow worker bridge therefore registers the returned run before waiting, observes and snapshots `result` immediately, sends `ChildStarted` only after `started` fulfills, and sends `ChildStartError` plus host-driven disposal when readiness rejects. -Cancellation before readiness is a publication decision, not merely a flag for later result mapping. The in-process run synchronously deactivates its owner fiber, so the agent factory's liveness check fails, `started` rejects, and neither the child session nor agent can publish. The run's result still settles as `aborted`. Before the workflow's own result becomes observable, its host likewise drives both permitted cancellation channels: it aborts the shared request signal and calls each registered run's `cancel()`, including runs still waiting on readiness. Provider cancel callbacks are contained independently so one broken implementation cannot prevent peers from receiving cancellation or wedge the workflow result. +Cancellation before readiness is a publication decision, not merely a flag for later result mapping. The in-process run synchronously deactivates its owner fiber. If cancellation lands before publication, the factory's liveness check prevents either creation edge. If it begins synchronously inside `session/created`, `agent/created`, or `agent/session-start`, the publication barrier lets the current notification phase unwind without revoking its world, the next liveness check prevents every later phase and driver start, and rollback pairs every creation edge that already began. In either case `started` rejects, no `subagent/start` or `subagent/end` is emitted, and the run result settles as `aborted`. + +Before the workflow's own result becomes observable, its host likewise drives both permitted cancellation channels: it aborts the shared request signal and calls each registered run's `cancel()`, including runs still waiting on readiness. Provider cancel callbacks are contained independently so one broken implementation cannot prevent peers from receiving cancellation or wedge the workflow result. Together these rules prevent an early result rejection from going unhandled, ensure `workflow/agent-start` never names an unpublished child, and prevent a child from publishing after its workflow has ended. @@ -758,9 +807,9 @@ The owner-final APIs express the actual strength required by each rule: restore Listener filtering prevents a hook from intercepting the wrong agent but does not scope tool schemas, executable lookup, prompt sections, variables, or Code Mode bindings. Persona, tool filtering, and concurrent structured schemas would still require global mutation. -### Add scope semantics to vendored Cordis +### Put agent-scope policy inside vendored Cordis -Cordis already provides derived contexts, effect-owning fibers, and receiver-based listener filtering. The harness-level primitive combines those mechanisms without adding a framework fork whose synchronization cost would outlive this feature. +Cordis already provides derived contexts, effect-owning fibers, and receiver-based listener filtering, so the harness-level primitive composes those mechanisms instead of teaching the framework about agents, tools, prompts, or global-plus-scope resolution. The implementation does harden Cordis's domain-neutral lifecycle substrate: effects are owner-visible before setup callbacks, child fibers are parent-owned before publication, and an unloading fiber rejects registrations that missed its cleanup snapshot. Those rules are required by every plugin under reentrant HMR, not scope-specific policy pushed into the framework. ## Consequences @@ -772,8 +821,8 @@ The main benefit is one composition model across data, behavior, and lifetime: r - Plugin authors use the same registration APIs globally and per agent; only the context changes. - Registry-owned prompt schemas, executable lookup, Code Mode bindings, policy listeners, and UI presentation resolve from the same agent view. -- Create and resume expose no partially configured registry entry during awaited setup. -- Agent disposal revokes scoped contributions after the driver and all final or idle-injection session flushes have settled. +- Create and resume expose no partially configured registry entry during awaited setup, and overlapping caller/factory ownership leaves no gap between resume load, preparation failure, and the live lifecycle. +- Agent disposal revokes scoped contributions after the driver and all final or idle-injection session flushes have settled, and retains both public IDs until scope cleanup is quiescent. - Structured output composes per child without global mutation or listener-order assumptions. - Existing unscoped plugins remain deployment-wide contributors and observers. @@ -784,13 +833,14 @@ The costs are concentrated in dispatch discipline, per-scope registry state, and - Every scoped event dispatcher must carry the correct receiver; fused helpers, type markers, invariants, and gates exist because omission would otherwise deliver only to global listeners. - `agent.ctx` is capability-bearing. Its available services come from the agent loop's injected context, so holders receive that deliberate service surface. - Registries maintain per-scope maps and perform a global-plus-one-layer merge for the agent lifetime. -- The dispatch carrier is proxy-shaped and not identity-equal to its subject, even though method calls and property access behave like the subject. +- The dispatch carrier is proxy-shaped and not identity-equal to its subject, even though method calls and property access behave like the subject. Its composed filter is frozen, and defining a property through the carrier requires an explicitly configurable descriptor because the extensible surrogate cannot truthfully expose a new non-configurable subject property. - Flat scopes do not inherit parent capabilities; a desired child capability must be global or explicitly registered for the child. - `run_code` is protected transport infrastructure rather than a filterable end capability, so a policy that must forbid programs denies execution at the tool-policy layer instead of removing the transport from a Code Mode prompt. - Prompt protection restores named canonical contributions and their anchor placement, not the entire assembly; unprotected output remains extensible, while a globally protected section name is deliberately unavailable for scoped shadowing. - Terminal turn stopping has authority to discard pending steering. That power is appropriate for owner-enforced terminal protocols and too strong for ordinary cooperative continuation policy. - Programmatic `ctx.agents.create()` and `ctx.agents.resume()` are asynchronous because they await setup. The direct no-setup `ctx.agentLoop.create()` path, used by configuration and programmatic callers that already have complete options, remains synchronous. -- Ordered composition requires both an exact raw scope disposer and a shared public quiescence promise; the dual surface reflects two distinct Cordis lifecycle requirements. +- A programmatic agent is caller-owned but also structurally owned by its concrete AgentLoop provider. Reloading that provider tears the agent down even if a consumer still holds its handle, because the handle cannot keep the provider's dependency surface valid. +- Ordered composition requires exact raw effect identities plus shared public quiescence promises; the dual surfaces and lifecycle-long owner sentinels reflect distinct Cordis nesting and repeated-caller requirements. ### Deliberate boundaries diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts index af8e9905e4..942ec4efb4 100644 --- a/packages/cordis/tool-cordis/src/api-catalog.ts +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -57,8 +57,8 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ summary: 'The agent-loop plugin (`ctx.agentLoop`): creates ReactLoopAgents, runs their loops, and registers them in `ctx.agents`.', methods: [ 'create(id: AgentId, options: AgentOptions = {}, meta: Pick = {}): ReactLoopAgent', - 'async createAgent(options: CreateAgentOptions): Promise', - 'async resume(options: ResumeAgentOptions): Promise', + 'async createAgent(ownerCtx: Context, options: CreateAgentOptions): Promise', + 'async resume(ownerCtx: Context, options: ResumeAgentOptions): Promise', ], }, { @@ -251,7 +251,7 @@ export const EVENT_API: readonly EventApiEntry[] = [ name: 'agent/disposed', mode: 'emit', signature: '\'agent/disposed\'(this: Scoped, agent: Agent): void', - summary: 'An agent was removed from the registry after its driver and any in-flight turn reached quiescence.', + summary: 'An agent was removed from the registry.', }, { name: 'agent/error', @@ -497,7 +497,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'AgentFactory', - declaration: 'export interface AgentFactory {\n createAgent(options: CreateAgentOptions): Promise;\n resume(options: ResumeAgentOptions): Promise;\n}', + declaration: 'export interface AgentFactory {\n createAgent(ownerCtx: Context, options: CreateAgentOptions): Promise;\n resume(ownerCtx: Context, options: ResumeAgentOptions): Promise;\n}', }, { name: 'AgentHandle', diff --git a/packages/cordis/tool-cordis/tests/cordis-lifecycle.spec.ts b/packages/cordis/tool-cordis/tests/cordis-lifecycle.spec.ts new file mode 100644 index 0000000000..b290ae998e --- /dev/null +++ b/packages/cordis/tool-cordis/tests/cordis-lifecycle.spec.ts @@ -0,0 +1,287 @@ +import { Context, CordisError, FiberState, type Fiber } from 'cordis' +import { describe, expect, it } from 'vitest' + +/** + * Direct regressions for the vendored Cordis ownership substrate used by + * tool-cordis's dynamic plugin tree and every other harness plugin. + */ + +describe('Cordis effect ownership', () => { + it('makes an effect visible to a reentrant owner restart and awaits setup plus cleanup', async () => { + const ctx = new Context() + const setupGate = Promise.withResolvers() + const cleanupGate = Promise.withResolvers() + const cleanupStarted = Promise.withResolvers() + let restarted!: Promise + let setupFinished = false + let cleanupFinished = false + + ctx.effect(async () => { + restarted = ctx.fiber.restart() + await setupGate.promise + setupFinished = true + return async () => { + cleanupStarted.resolve(undefined) + await cleanupGate.promise + cleanupFinished = true + } + }, 'reentrant-restart') + + let settled = false + void restarted.then(() => { settled = true }) + await Promise.resolve() + expect(settled).toBe(false) + + setupGate.resolve(undefined) + await cleanupStarted.promise + expect(setupFinished).toBe(true) + await Promise.resolve() + expect(settled).toBe(false) + + cleanupGate.resolve(undefined) + await restarted + expect(cleanupFinished).toBe(true) + expect(ctx.fiber.getEffects()).toEqual([]) + }) + + it('rolls back collected cleanup and its owner-list entry when setup throws synchronously', () => { + const ctx = new Context() + let cleanups = 0 + + expect(() => ctx.effect(function* () { + yield () => { cleanups += 1 } + throw new Error('setup failed') + }, 'throwing-setup')).toThrow('setup failed') + + expect(cleanups).toBe(1) + expect(ctx.fiber.getEffects()).toEqual([]) + }) + + it('makes a reentrant owner restart await asynchronous rollback after synchronous setup failure', async () => { + const ctx = new Context() + const cleanupGate = Promise.withResolvers() + const cleanupStarted = Promise.withResolvers() + let restarted!: Promise + + expect(() => ctx.effect(function* () { + yield async () => { + cleanupStarted.resolve(undefined) + await cleanupGate.promise + } + restarted = ctx.fiber.restart() + throw new Error('setup failed after restart') + }, 'reentrant-throw')).toThrow('setup failed after restart') + + await cleanupStarted.promise + let settled = false + void restarted.then(() => { settled = true }) + await Promise.resolve() + expect(settled).toBe(false) + + cleanupGate.resolve(undefined) + await restarted + expect(ctx.fiber.getEffects()).toEqual([]) + }) + + it('keeps ordinary teardown synchronous and the public disposer single-shot', () => { + const ctx = new Context() + let cleanups = 0 + const dispose = ctx.effect(() => () => { cleanups += 1 }, 'sync-effect') + + expect(dispose()).toBeUndefined() + expect(cleanups).toBe(1) + expect(dispose()).toBeUndefined() + expect(cleanups).toBe(1) + expect(ctx.fiber.getEffects()).toEqual([]) + }) + + it('rejects cleanup-time registration while a restart is unloading', async () => { + const ctx = new Context() + let registrationError: unknown + + ctx.effect(() => () => { + try { + ctx.effect(() => () => {}, 'too-late') + } catch (error) { + registrationError = error + } + }, 'restart-cleanup') + + await ctx.fiber.restart() + expect(registrationError).toBeInstanceOf(CordisError) + expect((registrationError as CordisError).code).toBe('INACTIVE_EFFECT') + expect(ctx.fiber.state).toBe(FiberState.ACTIVE) + expect(ctx.fiber.getEffects()).toEqual([]) + }) + + it('keeps effect registration legal while child fibers are PENDING and LOADING', async () => { + const ctx = new Context() + let pendingCleanup = false + let loadingCleanup = false + + ctx.on('internal/plugin', (fiber) => { + if (fiber.name !== 'state-probe' || fiber.uid === null) return + expect(fiber.state).toBe(FiberState.PENDING) + fiber.ctx.effect(() => () => { pendingCleanup = true }, 'pending-effect') + }) + + const fiber = await ctx.plugin({ + name: 'state-probe', + apply(inner) { + expect(inner.fiber.state).toBe(FiberState.LOADING) + inner.effect(() => () => { loadingCleanup = true }, 'loading-effect') + }, + }) + await fiber.dispose() + + expect(pendingCleanup).toBe(true) + expect(loadingCleanup).toBe(true) + }) + + it('resolves dependencies that internal/plugin adds before child activation', async () => { + const ctx = new Context() + ctx.provide('late-inject', {}) + let applyCalls = 0 + + ctx.on('internal/plugin', (fiber) => { + if (fiber.name !== 'loader-shaped' || fiber.uid === null) return + fiber.inject['late-inject'] = {} + }) + + const fiber = await ctx.plugin({ + name: 'loader-shaped', + apply() { + applyCalls += 1 + }, + }) + + expect(applyCalls).toBe(1) + expect(fiber.state).toBe(FiberState.ACTIVE) + }) +}) + +describe('Cordis child publication ownership', () => { + it('rolls back parent and runtime ownership when internal/plugin publication throws', () => { + const ctx = new Context() + const plugin = { name: 'publication-failure', apply() {} } + ctx.on('internal/plugin', (fiber) => { + if (fiber.name === plugin.name) throw new Error('publication failed') + }) + + expect(() => ctx.plugin(plugin)).toThrow('publication failed') + expect(ctx.registry.has(plugin)).toBe(false) + }) + + it('contains teardown notification failures so ownership cleanup and peers complete', async () => { + const ctx = new Context() + const errors: unknown[] = [] + ctx.logger.error = ((error: unknown) => { errors.push(error) }) as typeof ctx.logger.error + const observed: string[] = [] + ctx.on('internal/plugin', (fiber) => { + if (fiber.name === 'contained-teardown' && fiber.uid === null) { + throw new Error('broken teardown observer') + } + }) + ctx.on('internal/plugin', (fiber) => { + if (fiber.name === 'contained-teardown' && fiber.uid === null) observed.push('disposed') + }) + const child = await ctx.plugin({ name: 'contained-teardown', apply() {} }) + + await expect(child.dispose()).resolves.toBeUndefined() + expect(observed).toEqual(['disposed']) + expect(errors).toHaveLength(1) + expect(errors[0]).toEqual(expect.objectContaining({ message: 'broken teardown observer' })) + expect(child.uid).toBeNull() + }) + + it('makes a LOADING parent join child cleanup started before its unload snapshot', async () => { + const ctx = new Context() + const cleanupGate = Promise.withResolvers() + const cleanupStarted = Promise.withResolvers() + let ownerFiber!: Fiber + let ownerDisposal!: Promise + let childDisposal!: Promise + let childFiber!: Fiber + + ctx.on('internal/plugin', (fiber) => { + if (fiber.name !== 'loading-child' || fiber.uid === null) return + childFiber = fiber + fiber.ctx.effect(() => async () => { + cleanupStarted.resolve(undefined) + await cleanupGate.promise + }, 'loading-child-cleanup') + ownerDisposal = ownerFiber.dispose() + childDisposal = Promise.resolve(fiber.dispose()) + }) + + const ownerMount = ctx.plugin({ + name: 'loading-owner', + apply(inner) { + ownerFiber = inner.fiber + inner.plugin({ name: 'loading-child', apply() {} }) + }, + }) + + await cleanupStarted.promise + let ownerSettled = false + void ownerDisposal.then(() => { ownerSettled = true }) + await Promise.resolve() + expect(ownerSettled).toBe(false) + + cleanupGate.resolve(undefined) + await Promise.all([ownerDisposal, childDisposal, ownerMount]) + expect(childFiber.uid).toBeNull() + expect(ownerFiber.uid).toBeNull() + }) + + it('lets parent disposal during internal/plugin await the unpublished child to quiescence', async () => { + const ctx = new Context() + let ownerCtx!: Context + const owner = await ctx.plugin({ + name: 'owner', + apply(inner) { + ownerCtx = inner + }, + }) + + const cleanupGate = Promise.withResolvers() + const cleanupStarted = Promise.withResolvers() + let cleanupFinished = false + let childApplyCalls = 0 + let parentDisposal!: Promise + + ctx.on('internal/plugin', (fiber) => { + if (fiber.name !== 'child' || fiber.uid === null) return + expect(fiber.state).toBe(FiberState.PENDING) + fiber.ctx.effect(() => async () => { + cleanupStarted.resolve(undefined) + await cleanupGate.promise + cleanupFinished = true + }, 'pending-child-cleanup') + }) + ctx.on('internal/plugin', (fiber) => { + if (fiber.name !== 'child' || fiber.uid === null) return + parentDisposal = owner.dispose() + }) + + const child = ownerCtx.plugin({ + name: 'child', + apply() { + childApplyCalls += 1 + }, + }) + + await cleanupStarted.promise + let settled = false + void parentDisposal.then(() => { settled = true }) + await Promise.resolve() + expect(settled).toBe(false) + + cleanupGate.resolve(undefined) + await parentDisposal + expect(cleanupFinished).toBe(true) + expect(childApplyCalls).toBe(0) + expect(child.uid).toBeNull() + expect(child.state).toBe(FiberState.DISPOSED) + }) +}) diff --git a/packages/core/agent-loop/README.md b/packages/core/agent-loop/README.md index a8da612305..daf7e10d76 100644 --- a/packages/core/agent-loop/README.md +++ b/packages/core/agent-loop/README.md @@ -8,7 +8,9 @@ This is the only package in the harness that contains concrete loop logic. Every ### Public API -Lifecycle (scoped): programmatic creation and resume snapshot caller-owned identity/configuration data, obtain registry/store-owned capabilities for both unpublished IDs, mint `agent.ctx`, and install the ordered teardown skeleton before awaiting optional `setup`. The capabilities reject competing `register`/`enter`/`prepare`/`create` calls, so setup cannot publish the factory objects or same-id replacements. A create hands one-read raw seed and metadata references synchronously to the session boundary, which rejects exotic shells and materializes accepted values in a single recursive pass; pre-cloning either value could incorrectly sanitize prototypes. Resume installs an owner-liveness sentinel before persistence load, captures each loaded metadata field once, then hands ownership directly to the full lifecycle. After setup resolves, the factory checks its lifecycle flag, owner-fiber state, and owning agent status around one microtask checkpoint so a same-turn Cordis unload wins before publication. Successful setup inserts both session and agent before announcing either, enables driving immediately before `agent/session-start`, then starts the loop. The concrete agent owns runtime-pinned `id`, frozen detached `options`, `session`, and `ctx` bindings. Load/setup rejection or owner unload publishes nothing; partial creation announcements are paired during rollback. Teardown runs stop/drain (including outstanding idle-injection flushes) → unregister → detach session → unwind scope. All non-vetoing `agent/*` notifications go through `agentEvents(ctx, agent)`, which contains sync/async listener failures per observer; per-step assembly goes through `assembleContextFor(agent)`; the turn-end durability checkpoint goes through `ctx.sessions.flush(session)`. +Lifecycle (scoped and dual-owned): programmatic creation and resume snapshot caller-owned identity/configuration data, obtain registry/store-owned capabilities for both unpublished IDs, mint `agent.ctx`, and install the ordered teardown skeleton before awaiting optional `setup`. `AgentFactory.createAgent(ownerCtx, options)` and `resume(ownerCtx, options)` receive caller ownership explicitly; the trace-bound `AgentLoop` receiver still supplies the dependency origin, so a caller that injects only `agents` can create an agent whose scope reaches the loop's `sessions`/`llm`/`tools`/`systemPrompt` surface. The caller owns cancellation and the returned handle, while AgentLoop remains a structural second owner because the live driver depends on that service surface: unloading the provider aborts pending load/setup, tears down live programmatic agents, and awaits the same quiescence and ID-release boundary before its dependencies disappear. + +The complete create transaction is factory-tracked before ID reservation/session validation, and both a factory placeholder and lifecycle-long caller sentinel exist before scope minting can reenter plugin lifecycle notifications. The caller sentinel adopts the exact reservation effects and always follows the memoized lifecycle boundary, including handle-first teardown followed by caller unload. Resume adds a load sentinel before persistence I/O; it waits for load settlement until `startOwned` synchronously returns a lifecycle/rollback disposer, then follows that disposer without a handoff gap. The ID capabilities reject competing `register`/`enter`/`prepare`/`create` calls and remain held through scope quiescence. A create hands one-read raw seed and metadata references synchronously to the session boundary, which rejects exotic shells and materializes accepted values in a single recursive pass; pre-cloning either value could incorrectly sanitize prototypes. Resume captures each loaded metadata field once. After setup resolves, the factory checks caller and provider liveness after constructing both registry entries but before the first announcement, after `session/created`, after `agent/created`, and again after `agent/session-start` before starting the driver, so synchronous getter- or listener-triggered teardown wins. A publication-wide barrier flips lifecycle liveness immediately but keeps both entries and `agent.ctx` intact until the current synchronous notification phase unwinds; only then does rollback revoke them. Registry/store entries claim IDs across caller-code commit windows, detach exact objects only, and reuse stable carriers for paired edges. Load/setup rejection or owner unload before announcement emits no creation edge; if teardown begins inside a creation or session-start listener, the already-started notifications are paired during rollback and no live or drivable publication survives. Teardown runs stop/drain (including outstanding idle-injection flushes) → unregister → detach session → unwind scope → release reservations. After quiescence, the caller sentinel and any resume-load sentinel disarm and remove their owner-fiber effects so a long-lived caller does not retain the completed agent and scope. Ordinary non-vetoing `agent/*` notifications go through `agentEvents(ctx, agent)`; the registry's paired disposal edge applies the same failure containment through its captured carrier. Per-step assembly goes through `assembleContextFor(agent)`, and the turn-end durability checkpoint goes through `ctx.sessions.flush(session)`. - `ctx.agentLoop.create(id: string, options?: AgentOptions, meta?: { cwd?: string }): ReactLoopAgent` — synchronous no-setup create, used directly by programs and by `cordis.yml`-configured agents. It creates a fresh per-run session id `${id}-session-` with optional metadata; the uuid avoids colliding with a prior durable log. Each call is a new session (a deliberate demo simplification — a real resume-or-create policy is a TODO). Disposed with the calling fiber. @@ -17,7 +19,7 @@ Lifecycle (scoped): programmatic creation and resume snapshot caller-owned ident - `ctx.agents.create({ agentId, sessionId, meta?, seed?, agentOptions?, setup? }): Promise` — programmatic create on a caller-supplied `sessionId`, NOT `${id}-session`. It awaits the unpublished setup transaction before returning; `meta` carries cwd/lineage/seed-boundary metadata and `seed` reconstructs a forked child prefix after the session boundary validates and detaches each raw value in one pass. The resolved [`AgentHandle`](../agent/README.md) owns exact teardown. - `ctx.agents.resume({ agentId, resumeSessionId, agentOptions?, setup? }): Promise` — load a persisted session via `ctx.sessionPersistence` ([session persistence](../../../docs/rfc/implemented/architecture/2026-06-14-session-persistence.md)), reconstruct its history, then await setup against a fresh unpublished agent scope before rollback-covered publication. The live session id is the resumed id; turn numbering and derived history continue from the loaded log. Requires a session-persistence backend (NOT hard-injected — non-persistent demos still work; `resume` rejects with a clear error when persistence is absent). Returns an `AgentHandle`. -The config-driven `ctx.agentLoop.create()` path keeps its agent owned by the loop fiber (it discards the handle) — only the programmatic factory callers (the ACP bridge and in-process subagent backends) hold a handle and own per-agent teardown. +The config-driven `ctx.agentLoop.create()` path keeps its agent owned by the loop fiber (it discards the handle). For a programmatic agent, the handle holder is the only consumer-facing teardown capability; AgentLoop provider unload is the independent structural teardown edge, not another handle exposed to application code. ### Injected services diff --git a/packages/core/agent-loop/src/agent.ts b/packages/core/agent-loop/src/agent.ts index 3234a47939..6ea60c4958 100644 --- a/packages/core/agent-loop/src/agent.ts +++ b/packages/core/agent-loop/src/agent.ts @@ -25,18 +25,23 @@ const claimedDriverSessions = new WeakSet() /** Module-private driver entry: its symbol is absent from the package surface. */ const startDriver = Symbol('dsh.agent-loop.start-driver') +/** Module-private quiescent stop, valid both before and after driver start. */ +const stopDriver = Symbol('dsh.agent-loop.stop-driver') + /** Factory-owned controls that can operate only on the agent created with them. */ export interface PreparedReactLoopAgent { /** The unpublished concrete agent. */ agent: ReactLoopAgent /** Open its driving verbs at the rollback-covered publication boundary. */ enableDrive(): void + /** Stop the prepared instance even when publication has not started its loop. */ + dispose(): Promise | void /** * Start its driver after publication and session-start notification. * The returned disposer reaches quiescence for both the loop and every * fire-and-forget idle-injection flush the agent started. */ - startDriver(): () => Promise + startDriver(): () => Promise | void } /** @@ -56,12 +61,20 @@ export function prepareReactLoopAgent( if (claimedDriverSessions.has(session)) { throw new Error(`session "${session.id}" already has a concrete agent driver`) } - claimedDriverSessions.add(session) const agent = new ReactLoopAgent(ctx, id, options, session) + // Construction snapshots caller options and can throw. Claim only the fully + // initialized driver so the same prepared session remains retryable after a + // rejected caller value. + claimedDriverSessions.add(session) + const dispose = () => agent[stopDriver]() return { agent, enableDrive: () => { driveEnabledAgents.add(agent) }, - startDriver: () => agent[startDriver](), + dispose, + startDriver: () => { + agent[startDriver]() + return dispose + }, } } @@ -108,6 +121,8 @@ export class ReactLoopAgent implements Agent { private _status: AgentStatus = 'idle' private currentAbort: AbortController | undefined + /** Whether runLoop has been installed into {@link done}. */ + private driverStarted = false /** * Turn-scoped cancel marker, set by {@link cancel} and read/cleared by the * driver loop (via the LoopHandle) at every point a turn could start or @@ -361,17 +376,13 @@ export class ReactLoopAgent implements Agent { } /** - * Start the driver loop. Returns a disposer: calling it sets status to - * `disposed`, emits `agent/status('disposed')`, resolves the disposed - * promise (unblocking the idle wait), releases any `whenIdle` waiters, and - * aborts the current request if any. Its returned promise resolves only after - * the loop exits and every idle-injection flush started by this agent settles. - * @returns the disposer — idempotent, synchronously marks the agent disposed, - * and asynchronously reaches loop + flush quiescence without rejecting (it - * runs inside the fiber's LIFO disposal chain, where a rejection would skip - * later disposers). + * Start the driver loop. The prepared controller already owns its stable + * disposer, so teardown can mark the agent disposed even in the narrow + * publication window before this method runs. */ - [startDriver](): () => Promise { + [startDriver](): void { + if (this._status === 'disposed') return + this.driverStarted = true this.done = runLoop(this.loopCtx, this, { inbox: this.#inbox, setStatus: (status) => { this.setStatus(status) }, @@ -389,35 +400,50 @@ export class ReactLoopAgent implements Agent { // that would resolve a freshly-queued prompt as cancelled. settleIdle: () => { this.settleIdleWaiters() }, }) - // The disposer must be infallible: it runs inside the fiber's LIFO - // disposal chain, where a throw would skip later disposers (e.g. the - // registry unregistration) and leave `done` pending forever. - return async () => { - if (this._status !== 'disposed') { - this._status = 'disposed' - this.resolveDisposed() - // Release whenIdle waiters BEFORE the (guarded) event emit — they are - // internal state that must settle even if a listener throws below. Each - // waiter chains `done`, so it resolves only once the loop actually exits. - this.settleIdleWaiters() - this.currentAbort?.abort('disposed') - // setStatus refuses transitions out of 'disposed', so emit directly — - // 'disposed' is part of the agent/status contract. Guarded: a throwing - // listener must not break the disposal chain. + } + + /** + * Quiescent stop shared by pre-start rollback and live teardown. It marks the + * agent disposed synchronously, contains an unexpected loop rejection, and + * drains every idle-injection flush before resolving. + */ + private [stopDriver](): Promise | void { + if (this._status !== 'disposed') { + this._status = 'disposed' + this.resolveDisposed() + // Release whenIdle waiters BEFORE the (guarded) event emit — they are + // internal state that must settle even if a listener throws below. Each + // waiter chains `done`, so it resolves only once the loop actually exits. + this.settleIdleWaiters() + this.currentAbort?.abort('disposed') + // An unpublished rollback has no public status lifecycle to announce. + // Once driving is enabled, disposed is part of the agent/status contract. + if (driveEnabledAgents.has(this)) { agentEvents(this.loopCtx, this).emit('agent/status', 'disposed') } - // An unexpected driver rejection must not skip registry/session/scope - // cleanup. The normal loop contains turn failures itself; allSettled is the - // final lifecycle backstop for anything outside those boundaries. - await Promise.allSettled([this.done]) - // No new inject() can start after the synchronous disposed transition. - // Loop because settled tasks retire themselves in promise reactions that - // may run beside this continuation; either the set is empty or this waits - // the exact remaining quiescence boundary. allSettled keeps a failure in - // error reporting from skipping the registry/session/scope disposers. - while (this.pendingIdleFlushes.size > 0) { - await Promise.allSettled([...this.pendingIdleFlushes]) - } + } + // Before runLoop starts there is normally nothing asynchronous to drain; + // keep publication rollback synchronous so create() cannot throw while its + // session/agent entries are still briefly live. A session-start listener + // may have used the newly enabled inject() surface, however, so preserve + // its durability checkpoint as a real quiescence boundary. + if (!this.driverStarted && this.pendingIdleFlushes.size === 0) return + return this.drainDriver() + } + + /** Await the loop (when started) and every outstanding idle flush. */ + private async drainDriver(): Promise { + // An unexpected driver rejection must not skip registry/session/scope + // cleanup. The normal loop contains turn failures itself; allSettled is the + // final lifecycle backstop for anything outside those boundaries. + await Promise.allSettled([this.done]) + // No new inject() can start after the synchronous disposed transition. + // Loop because settled tasks retire themselves in promise reactions that + // may run beside this continuation; either the set is empty or this waits + // the exact remaining quiescence boundary. allSettled keeps a failure in + // error reporting from skipping registry/session/scope disposers. + while (this.pendingIdleFlushes.size > 0) { + await Promise.allSettled([...this.pendingIdleFlushes]) } } } diff --git a/packages/core/agent-loop/src/index.ts b/packages/core/agent-loop/src/index.ts index 902e1e2185..8722751962 100644 --- a/packages/core/agent-loop/src/index.ts +++ b/packages/core/agent-loop/src/index.ts @@ -7,7 +7,7 @@ * @module @deepseek-ai/dsh-agent-loop */ -import { Context, FiberState, Service } from 'cordis' +import { Context, CordisError, FiberState, Service, symbols } from 'cordis' import { randomUUID } from 'node:crypto' import z from 'schemastery' import { createScope } from '@deepseek-ai/dsh-scope' @@ -31,6 +31,81 @@ interface RegistrationReservations { release(): void } +/** A synchronously established ownership handoff plus its async publication result. */ +interface OwnedAgentStart { + result: Promise + dispose: () => Promise +} + +/** Internal carrier for a preparation error whose rollback still has to quiesce. */ +class LifecyclePreparationFailure extends Error { + constructor( + readonly reason: unknown, + readonly dispose: () => Promise, + ) { + super('agent lifecycle preparation failed', { cause: reason }) + this.name = 'LifecyclePreparationFailure' + } +} + +/** Stable construction-time state shared by every traceable AgentLoop receiver. */ +interface FactoryOwnership { + isActive(): boolean + track(dispose: () => Promise): () => void + dispose(): Promise +} + +/** Fiber states in which a concrete factory cannot safely serve dependencies. */ +const INACTIVE_FACTORY_STATES: ReadonlySet = new Set([ + FiberState.UNLOADING, + FiberState.DISPOSED, + FiberState.FAILED, +]) + +/** Build a tamper-resistant controller around one factory's private ledger. */ +function createFactoryOwnership(fiber: Context['fiber']): FactoryOwnership { + let accepting = true + const transactions = new Set<() => Promise>() + const isActive = (): boolean => accepting && !INACTIVE_FACTORY_STATES.has(fiber.state) + return Object.freeze({ + isActive, + track(dispose: () => Promise): () => void { + /* v8 ignore next -- every call site checks the same controller immediately + * before this synchronous, non-reentrant insertion; retain the guard as an invariant */ + if (!isActive()) throw new Error('agent loop is not active') + transactions.add(dispose) + return () => { transactions.delete(dispose) } + }, + async dispose(): Promise { + accepting = false + const disposers = [...transactions] + transactions.clear() + const results = await Promise.allSettled(disposers.map(dispose => Promise.resolve().then(dispose))) + /* v8 ignore next -- tracked lifecycle/load boundaries are deliberately + * infallible; keep reasons if that lower-level contract ever breaks */ + const errors = results.flatMap(result => result.status === 'rejected' ? [result.reason as unknown] : []) + /* v8 ignore next -- every tracked boundary is deliberately infallible; + * preserve an exact unexpected single failure as a defensive backstop */ + if (errors.length === 1) throw errors[0] + /* v8 ignore next -- multiple failures require multiple contract-breaking + * lifecycle disposers, but teardown must still retain every cause */ + if (errors.length > 1) throw new AggregateError(errors, 'agent loop transaction disposal failed') + }, + }) +} + +/** Private ownership controllers keyed by the concrete, unproxied service. */ +const factoryOwnerships = new WeakMap() + +/** Recover the stable controller when a Cordis trace proxy is the receiver. */ +function factoryOwnershipFor(loop: AgentLoop): FactoryOwnership { + const original = (loop as AgentLoop & { [symbols.original]?: AgentLoop })[symbols.original] ?? loop + // Installed immediately after Service construction, before AgentLoop starts + // any effect or config-driven transaction. + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + return factoryOwnerships.get(original)! +} + declare module 'cordis' { interface Context { agentLoop: AgentLoop @@ -94,6 +169,13 @@ export class AgentLoop extends Service implements AgentFactory { constructor(ctx: Context, public config: Config) { super(ctx, 'agentLoop') + const factoryOwnership = createFactoryOwnership(ctx.fiber) + factoryOwnerships.set(this, factoryOwnership) + // Programmatic agents are caller-owned, but this implementation is their + // dependency provider too. Retain a second ownership edge so unloading the + // loop aborts unpublished work and drains every live lifecycle before its + // service surface disappears. + ctx.effect(() => () => factoryOwnership.dispose(), 'agentLoop.factoryTransactions()') // Provide the agent-creation factory to the registry (effect-scoped: the // slot is cleared on dispose). ctx.effect(() => this.ctx.agents.setFactory(this), 'agentLoop.setFactory()') @@ -118,7 +200,11 @@ export class AgentLoop extends Service implements AgentFactory { // failed resume is contained + logged: startup must not crash. ctx.effect(() => { const fiber = this.ctx.inject(['sessionPersistence'], (childCtx: Context) => { - void this.resumeWith(childCtx.sessionPersistence, { agentId: id, resumeSessionId, agentOptions: options }) + void this.resumeWith(ctx, childCtx.sessionPersistence, { + agentId: id, + resumeSessionId, + agentOptions: options, + }) .catch((error: unknown) => { this.ctx.logger.warn(`agent "${id}": config-driven resume of "${resumeSessionId}" failed: ${String(error)}`) }) @@ -135,6 +221,22 @@ export class AgentLoop extends Service implements AgentFactory { } } + /** Whether this concrete factory may begin or publish more work. */ + private factoryIsActive(): boolean { + return factoryOwnershipFor(this).isActive() + } + + /** Reject a call that raced the concrete loop's unload boundary. */ + private assertFactoryActive(): void { + if (this.factoryIsActive()) return + throw new Error('agent loop is not active') + } + + /** Add one memoized quiescence boundary to the factory's ownership set. */ + private trackFactoryTransaction(dispose: () => Promise): () => void { + return factoryOwnershipFor(this).track(dispose) + } + /** * Config-driven create: an agent on a FRESH, non-colliding session id per run * (`${id}-session-`). Used for `cordis.yml`-configured agents and as @@ -162,13 +264,17 @@ export class AgentLoop extends Service implements AgentFactory { // lifecycle into the agent's composite effect (so a fiber unload tears the // session + agent down as one ordered chain, capturing the loop's closing // flush). The whole effect is owned by THIS fiber; no AgentHandle is needed. + let session: Session try { - const session = reservations.session.prepare({ meta }) - const { agent } = this.start(id, options, session, 'startup', reservations) - return agent - } finally { + session = reservations.session.prepare({ meta }) + } catch (error: unknown) { reservations.release() + throw error } + // start() accepts ownership of both reservation capabilities even when + // synchronous preparation fails; its rollback releases them at quiescence. + const { agent } = this.start(id, options, session, 'startup', reservations) + return agent } /** @@ -180,11 +286,13 @@ export class AgentLoop extends Service implements AgentFactory { * `seed` (a balanced completed-turn prefix of the parent's log) so the child * starts with the parent's context. Returns an {@link AgentHandle} the owner * disposes to tear down exactly this agent. + * @param ownerCtx - the caller context that owns setup and the live lifecycle. * @param options - agent id, caller-supplied session id, optional seed/meta, * and agent options. * @returns the handle whose dispose tears down exactly this agent. */ - async createAgent(options: CreateAgentOptions): Promise { + async createAgent(ownerCtx: Context, options: CreateAgentOptions): Promise { + this.assertFactoryActive() // Snapshot every caller-owned field before the first async setup boundary. // The callback itself is an identity capability. Agent options detach here; // seed and metadata stay raw only until sessions.prepare() synchronously @@ -196,16 +304,32 @@ export class AgentLoop extends Service implements AgentFactory { const agentOptions = structuredClone(options.agentOptions ?? {}) const seed = options.seed const meta = options.meta - const reservations = this.reserve(agentId, sessionId) + // Snapshot accessors can reenter plugin teardown; do not reserve identities + // after the dependency provider has begun unloading. + this.assertFactoryActive() + const { promise: transactionSettled, resolve: markTransactionSettled } = Promise.withResolvers() + const disposeCreateForFactory = (): Promise => transactionSettled + const untrackFactoryCreate = this.trackFactoryTransaction(disposeCreateForFactory) try { - const session = reservations.session.prepare({ - ...seed !== undefined ? { seed } : {}, - ...meta !== undefined ? { meta } : {}, - }) - // A seeded (forked) create is still a fresh start, NOT a resume. - return await this.startOwned(agentId, agentOptions, session, 'startup', reservations, setup) + const reservations = this.reserve(agentId, sessionId) + let lifecycleStarted = false + try { + const session = reservations.session.prepare({ + ...seed !== undefined ? { seed } : {}, + ...meta !== undefined ? { meta } : {}, + }) + // A seeded (forked) create is still a fresh start, NOT a resume. + lifecycleStarted = true + return await this.startOwned(ownerCtx, agentId, agentOptions, session, 'startup', reservations, setup).result + } finally { + // Once startOwned is invoked, even a preparation failure carries its + // own quiescent rollback boundary. Only failures before that handoff + // release directly here. + if (!lifecycleStarted) reservations.release() + } } finally { - reservations.release() + markTransactionSettled() + untrackFactoryCreate() } } @@ -220,10 +344,12 @@ export class AgentLoop extends Service implements AgentFactory { * configured. NOT hard-injected (that would make non-persistent demos pend * forever) — callers that need resume (ACP) inject `sessionPersistence`, so * by the time this runs the service exists. + * @param ownerCtx - the caller context that owns load, setup, and the live lifecycle. * @param options - the persisted session id to reload, plus agent id/options. * @returns the handle for the agent resumed on the reconstructed session. */ - async resume(options: ResumeAgentOptions): Promise { + async resume(ownerCtx: Context, options: ResumeAgentOptions): Promise { + this.assertFactoryActive() // Read the service through `ctx.get('sessionPersistence')` — a direct // global-store lookup keyed by the isolate symbol — NOT // `this.ctx.sessionPersistence`. AgentLoop deliberately does NOT inject @@ -243,7 +369,7 @@ export class AgentLoop extends Service implements AgentFactory { if (persistence === undefined) { throw new Error('cannot resume: session persistence is not configured (load a dsh-session-persistence backend)') } - return this.resumeWith(persistence, options) + return this.resumeWith(ownerCtx, persistence, options) } /** @@ -255,7 +381,7 @@ export class AgentLoop extends Service implements AgentFactory { * sessions store + registry are still read through `this.ctx` (both are in * AgentLoop's static inject, so they resolve fine). */ - private async resumeWith(persistence: SessionPersistence, options: ResumeAgentOptions): Promise { + private async resumeWith(ownerCtx: Context, persistence: SessionPersistence, options: ResumeAgentOptions): Promise { // Persistence is an async trust boundary. Reserve, load, reconstruct, and // publish only the identities/options accepted at entry—never fields // reread from a caller-owned object after the await. @@ -263,25 +389,65 @@ export class AgentLoop extends Service implements AgentFactory { const sessionId = options.resumeSessionId const agentOptions = structuredClone(options.agentOptions ?? {}) const setup = options.setup + // Caller-owned accessors above are a synchronous reentrancy boundary: one + // can begin factory unload while options are snapshotted. Re-check before + // installing either ownership sentinel, so a rejected transaction leaves + // no orphan effect or unresolved settlement promise. + this.assertFactoryActive() const { promise: ownerDisposed, resolve: markOwnerDisposed } = Promise.withResolvers() const { promise: transactionSettled, resolve: markTransactionSettled } = Promise.withResolvers() let observingOwner = true // Resume must observe its caller from BEFORE persistence I/O begins. The // full agent lifecycle does not exist until load returns, so without this // sentinel a never-settling backend outlives owner disposal and holds both - // public identities forever. `this.ctx.effect` retains the traceable caller - // ownership used by startOwned's lifecycle effect. Install it before even - // reserving the ids: an inactive owner cannot leak a reservation if effect - // registration fails. - const disposeLoadSentinel = this.ctx.effect(() => () => { - if (!observingOwner) return + // public identities forever. The caller-bound effect retains the same owner + // later used by startOwned's lifecycle effect and adopts both reservation + // disposers before persistence I/O begins. + let lifecycleBoundary: (() => Promise) | undefined + let disposingForFactory: Promise | undefined + const disposeLoadForFactory = (): Promise => (disposingForFactory ??= (async () => { markOwnerDisposed() - // Owner-triggered teardown does not reach quiescence until the resume - // transaction has observed disposal and released both reservations. - return transactionSettled - }, `agentLoop.resumeLoad(${agentId})`) + await transactionSettled + })()) + let untrackFactoryLoad: (() => void) | undefined + let disposeLoadSentinel: (() => Promise | void) | undefined + let loadSentinelRetired = false + const retireLoadSentinel = (): void => { + /* v8 ignore next -- every lifecycle/rollback boundary is memoized and + * invokes its after-quiescence hook once; retain idempotence defensively */ + if (loadSentinelRetired) return + // Disarm the follower before invoking its wrapper: retirement can happen + // from inside the lifecycle it used to follow, so recursing into that + // same boundary here would deadlock final teardown. + loadSentinelRetired = true + observingOwner = false + void disposeLoadSentinel?.() + } + let reservations: RegistrationReservations | undefined + let lifecycleStarted = false try { - const reservations = this.reserve(agentId, sessionId) + reservations = this.reserve(agentId, sessionId) + const ownedReservations = reservations + // Move both reservation effects under a sentinel BEFORE persistence I/O. + // Its first teardown stage either aborts/waits for the load transaction + // or follows the full lifecycle after handoff; only then do the exact + // reservation disposers run. They therefore cannot race ahead as owner + // siblings and reopen ids while load/setup/scope cleanup is still live. + disposeLoadSentinel = ownerCtx.effect(function* () { + // eslint-disable-next-line @typescript-eslint/unbound-method -- exact effect-disposer identity is the ownership contract + yield ownedReservations.agent.release + // eslint-disable-next-line @typescript-eslint/unbound-method -- exact effect-disposer identity is the ownership contract + yield ownedReservations.session.release + yield () => { + if (loadSentinelRetired) return + if (observingOwner) { + markOwnerDisposed() + return transactionSettled + } + return lifecycleBoundary?.() + } + }, `agentLoop.resumeLoad(${agentId})`) + untrackFactoryLoad = this.trackFactoryTransaction(disposeLoadForFactory) try { const loadTask = persistence.load(sessionId) const { meta, events } = await Promise.race([ @@ -309,16 +475,26 @@ export class AgentLoop extends Service implements AgentFactory { ...seedLength !== undefined ? { seedLength } : {}, }, }) - // Calling startOwned synchronously installs the complete lifecycle - // effect before it reaches its first setup await. Only then disarm the - // load sentinel: ownership passes directly from one effect to the other - // with no disposal gap. - const starting = this.startOwned(agentId, agentOptions, session, 'resume', reservations, setup) + // startOwned synchronously returns either the complete lifecycle or a + // preparation-rollback boundary before its result reaches the first + // setup await. Retarget the lifecycle-long load sentinel to that disposer; + // ownership overlaps instead of creating a gap. + lifecycleStarted = true + const starting = this.startOwned( + ownerCtx, + agentId, + agentOptions, + session, + 'resume', + reservations, + setup, + retireLoadSentinel, + ) + lifecycleBoundary = starting.dispose observingOwner = false - await disposeLoadSentinel() - return await starting + return await starting.result } finally { - reservations.release() + if (!lifecycleStarted) reservations.release() } } finally { try { @@ -327,10 +503,18 @@ export class AgentLoop extends Service implements AgentFactory { // owner already triggered cleanup, this idempotent second disposal is a // no-op and the owner's first cleanup remains parked on the shared // settlement promise. - observingOwner = false - await disposeLoadSentinel() + if (!lifecycleStarted) { + // Covers reserve succeeding but sentinel/factory tracking failing + // before the inner load transaction begins. + reservations?.release() + // A failed pre-lifecycle transaction has already released directly; + // retire the sentinel so it cannot remain as a stale owner effect. + retireLoadSentinel() + await disposeLoadSentinel?.() + } } finally { markTransactionSettled() + untrackFactoryLoad?.() } } } @@ -358,17 +542,20 @@ export class AgentLoop extends Service implements AgentFactory { /** * Construct an unpublished agent and synchronously install its complete - * teardown skeleton before any setup await. The closures are assigned their - * session/registry/loop disposers only at publication, while the exact scope - * disposer is nested immediately. Therefore owner unload during setup flips - * `active`, unwinds the scope, and wins the race without any late Cordis - * effect collection. + * teardown skeleton before any setup await. A lifecycle-long caller sentinel and + * factory placeholder exist before driver/scope construction; the closures + * receive their session/registry/loop disposers only at publication, while + * the exact scope disposer is nested as soon as construction returns. Owner + * unload during preparation or setup therefore follows a real rollback + * boundary, flips liveness, and wins without late Cordis effect collection. */ private prepareLifecycle( + ownerCtx: Context, id: AgentId, options: AgentOptions, session: Session, reservations: RegistrationReservations, + afterQuiescence?: () => void, ): { agent: ReactLoopAgent active: () => boolean @@ -381,77 +568,266 @@ export class AgentLoop extends Service implements AgentFactory { // than Cordis reaches nested scope effects. Include that signal in the // pre-publication liveness check so a same-turn parent dispose cannot race // an already-fulfilled setup promise into briefly publishing a child. - const ownerAgent = this.ctx.agent - const ownerFiber = this.ctx.fiber - const driver = prepareReactLoopAgent(this.ctx, id, options, session) - const { agent } = driver - const scope: Scope = createScope(this.ctx, agent) - bindReactLoopAgentContext(agent, scope.ctx.extend({ agent })) - - let active = true - let detachSession: (() => void) | undefined - let detachAgent: (() => void) | undefined - let stop: (() => Promise) | undefined - const { promise: deactivated, resolve: markDeactivated } = Promise.withResolvers() - const { promise: torndown, resolve: markTorndown } = Promise.withResolvers() - - const dispose = this.ctx.effect(function* () { - // First yielded, disposed last: every preceding teardown stage settled. - yield () => { markTorndown() } - // Exact identity moves the scope fiber out of the owner's concurrent - // sibling list and into this ordered transaction. - yield scope.rawDispose - yield () => { - detachSession?.() - detachSession = undefined - } - yield () => { - detachAgent?.() - detachAgent = undefined - } - // Last yielded, disposed first. Keep the pre-publication path - // synchronous: returning a Promise only after the loop actually began - // lets a failed announcement roll back registry/store before create's - // rejection is observed. - yield () => { - active = false - markDeactivated() - if (stop === undefined) return - return stop() - } - }, 'agentLoop.lifecycle()') - - let disposing: Promise | undefined - const disposeAgent = (): Promise => (disposing ??= (async () => { - await dispose() - await torndown - })()) - - const publish = (source: SessionStartSource): void => { - // Publication is one synchronous, rollback-covered sequence. Setup has - // already completed, so its scoped listeners observe both announcements. - detachSession = agent.ctx.sessions.enter(session, reservations.session) - detachAgent = this.ctx.agents.enter(agent, reservations.agent) - this.ctx.sessions.announce(session) - this.ctx.agents.announce(agent) - // Setup is over and both entries are live. Open the driving surface just - // before session-start so its listeners retain their supported ability to - // inject/queue, while setup itself can never drive an unpublished agent. - driver.enableDrive() - agentEvents(this.ctx, agent).emit('agent/session-start', source) - stop = driver.startDriver() + let ownerAgent: Context['agent'] + let ownerFiber: Context['fiber'] + try { + this.assertFactoryActive() + ownerCtx.fiber.assertActive() + ownerAgent = ownerCtx.agent + ownerFiber = ownerCtx.fiber + } catch (error: unknown) { + reservations.release() + afterQuiescence?.() + const dispose = (): Promise => Promise.resolve() + throw new LifecyclePreparationFailure(error, dispose) } - return { - agent, - active: () => active + // Establish BOTH ownership edges before driver preparation or scope + // minting can publish an internal lifecycle notification. The lifecycle-long + // caller sentinel also adopts the exact reservation effects: owner unload + // first waits for the memoized lifecycle boundary, then reaches those + // capabilities, so IDs cannot reopen while scope cleanup is still live. + const { promise: lifecycleReady, resolve: markLifecycleReady } + = Promise.withResolvers<() => Promise>() + const { promise: deactivated, resolve: markDeactivated } = Promise.withResolvers() + let ownerDisposed = false + const ownerIsDisposed = (): boolean => ownerDisposed + let ownerSentinelRetired = false + let disposeOwnerSentinel: () => Promise | void + try { + disposeOwnerSentinel = ownerCtx.effect(function* () { + // eslint-disable-next-line @typescript-eslint/unbound-method -- exact effect-disposer identity is the ownership contract + yield reservations.agent.release + // eslint-disable-next-line @typescript-eslint/unbound-method -- exact effect-disposer identity is the ownership contract + yield reservations.session.release + yield () => { + if (ownerSentinelRetired) return + ownerDisposed = true + markDeactivated() + return lifecycleReady.then(disposeLifecycle => disposeLifecycle()) + } + }, `agentLoop.ownerLifecycle(${id})`) + } catch (error: unknown) { + reservations.release() + afterQuiescence?.() + const dispose = (): Promise => Promise.resolve() + markLifecycleReady(dispose) + // The only callback-free effect-install failure is Cordis's inactive + // owner boundary; preserve the original value as cause for diagnostics. + const reportedError = new Error(`agent "${id}" setup aborted: owner disposed during setup`, { cause: error }) + throw new LifecyclePreparationFailure(reportedError, dispose) + } + let disposingForFactory: Promise | undefined + const disposeForFactory = (): Promise => (disposingForFactory ??= (async () => { + const disposeLifecycle = await lifecycleReady + await disposeLifecycle() + })()) + let untrackFactory: () => void + try { + untrackFactory = this.trackFactoryTransaction(disposeForFactory) + } catch (error: unknown) { + /* v8 ignore start -- no callback boundary exists between the active + * factory check, sentinel installation, and this synchronous ledger insert */ + let cleanupTask: Promise | undefined + const cleanup = (): Promise => (cleanupTask ??= Promise.resolve().then(() => { + reservations.release() + afterQuiescence?.() + })) + markLifecycleReady(cleanup) + void disposeOwnerSentinel() + throw new LifecyclePreparationFailure(error, cleanup) + /* v8 ignore stop */ + } + + let scope: Scope | undefined + let stopPrepared: (() => Promise | void) | undefined + let disposeAgent: (() => Promise) | undefined + try { + const driver = prepareReactLoopAgent(this.ctx, id, options, session) + stopPrepared = () => driver.dispose() + const { agent } = driver + scope = createScope(this.ctx, agent) + const lifecycleScope = scope + if (ownerIsDisposed() || !this.factoryIsActive() + || ownerFiber.state === FiberState.UNLOADING + || ownerFiber.state === FiberState.DISPOSED + || ownerFiber.state === FiberState.FAILED + || ownerAgent?.status === 'disposed') { + throw new Error(`agent "${id}" setup aborted: owner disposed during setup`) + } + bindReactLoopAgentContext(agent, lifecycleScope.ctx.extend({ agent })) + + let active = true + let detachSession: (() => void) | undefined + let detachAgent: (() => void) | undefined + const stop = stopPrepared + const { promise: torndown, resolve: markTorndown } = Promise.withResolvers() + const { promise: publicationSettled, resolve: markPublicationSettled } = Promise.withResolvers() + let publishing = false + + const dispose = ownerCtx.effect(function* () { + // First yielded, disposed last: every preceding teardown stage settled. + yield () => { + // Reservation ownership is part of lifecycle settlement: a factory + // unload that awaited this disposer may reuse both ids immediately. + reservations.release() + // Retire both follower effects only after quiescence reached this final + // stage. Their retired branches skip recursively disposing this same + // lifecycle while their exact reservation children are already inert. + ownerSentinelRetired = true + void disposeOwnerSentinel() + afterQuiescence?.() + untrackFactory() + markTorndown() + } + // Exact identity moves the scope fiber out of the owner's concurrent + // sibling list and into this ordered transaction. + yield lifecycleScope.rawDispose + yield () => { + detachSession?.() + detachSession = undefined + } + yield () => { + detachAgent?.() + detachAgent = undefined + } + // Last yielded, disposed first. Keep the pre-publication path + // synchronous: returning a Promise only after the loop actually began + // lets a failed announcement roll back registry/store before create's + // rejection is observed. + yield () => { + active = false + markDeactivated() + // A listener can begin owner teardown reentrantly. Flip liveness now + // so publish's next checkpoint aborts, but keep both registry entries + // and the scope intact until the current synchronous publication + // phase has unwound. + if (publishing) return publicationSettled.then(stop) + return stop() + } + }, 'agentLoop.lifecycle()') + + let disposing: Promise | undefined + disposeAgent = (): Promise => (disposing ??= (async () => { + await dispose() + await torndown + })()) + markLifecycleReady(disposeAgent) + + const isActive = (): boolean => active + && !ownerIsDisposed() + && this.factoryIsActive() && ownerFiber.state !== FiberState.UNLOADING && ownerFiber.state !== FiberState.DISPOSED && ownerFiber.state !== FiberState.FAILED - && ownerAgent?.status !== 'disposed', - deactivated, - publish, - disposeAgent, + && ownerAgent?.status !== 'disposed' + + const publish = (source: SessionStartSource): void => { + publishing = true + try { + /* v8 ignore next 3 -- both callers check active immediately before + * this callback-free synchronous publish entry */ + if (!isActive()) { + throw new Error(`agent "${id}" setup aborted: owner disposed during setup`) + } + // Publication is one synchronous, rollback-covered sequence. Setup has + // already completed, so its scoped listeners observe both announcements. + detachSession = agent.ctx.sessions.enter(session, reservations.session) + detachAgent = this.ctx.agents.enter(agent, reservations.agent) + // Both enter() calls capture stable dispatch carriers and therefore + // evaluate a caller-owned Context.filter. A getter can begin teardown; + // entries exist for rollback, but no creation edge may escape afterward. + if (!isActive()) { + throw new Error(`agent "${id}" setup aborted: owner disposed during setup`) + } + this.ctx.sessions.announce(session) + // Session listeners can dispose an owner. Finish that dispatch while + // both entries/scope remain live, then skip the agent edge entirely. + if (!isActive()) { + throw new Error(`agent "${id}" setup aborted: owner disposed during setup`) + } + this.ctx.agents.announce(agent) + // Creation listeners may synchronously dispose either owner. Cordis + // flips the relevant fiber state before it invokes nested effects, so + // re-check here and never unlock a driver after teardown began. + if (!isActive()) { + throw new Error(`agent "${id}" setup aborted: owner disposed during setup`) + } + // Setup is over and both entries are live. Open the driving surface just + // before session-start so its listeners retain their supported ability to + // inject/queue, while setup itself can never drive an unpublished agent. + driver.enableDrive() + agentEvents(this.ctx, agent).emit('agent/session-start', source) + // session-start is the final synchronous listener boundary before the + // loop begins. Teardown there must win just like teardown from either + // creation announcement; the prebuilt driver disposer makes rollback + // quiescent even though the loop never started. + if (!isActive()) { + throw new Error(`agent "${id}" setup aborted: owner disposed during setup`) + } + driver.startDriver() + } finally { + publishing = false + markPublicationSettled() + } + } + + return { + agent, + active: isActive, + deactivated, + publish, + disposeAgent, + } + } catch (error: unknown) { + // Preparation failed before startOwned received a lifecycle object. Give + // a factory unload that already captured the placeholder a real boundary, + // and retire the entry only after the minted scope (if any) is quiescent. + const failedScope = scope + const ownershipInactive = ownerIsDisposed() || ownerFiber.uid === null || !this.factoryIsActive() + || ownerFiber.state === FiberState.UNLOADING + || ownerFiber.state === FiberState.DISPOSED + || ownerFiber.state === FiberState.FAILED + || ownerAgent?.status === 'disposed' + const reportedError = ownershipInactive && error instanceof CordisError + ? new Error(`agent "${id}" setup aborted: owner disposed during setup`, { cause: error }) + : error + let fallbackTask: Promise | undefined + const cleanup = disposeAgent ?? (() => (fallbackTask ??= (async () => { + try { + await stopPrepared?.() + } finally { + try { + await failedScope?.dispose() + } finally { + // Factory and caller quiescence include the prepared driver, + // minted scope, and both unpublished identities even when the + // complete lifecycle effect could not be installed. + reservations.release() + afterQuiescence?.() + } + } + })())) + markLifecycleReady(cleanup) + const cleanupTask = cleanup() + // Retire the provisional owner edge. If owner unload already claimed it, + // this is an inert repeat and that first caller is following cleanupTask. + void disposeOwnerSentinel() + void cleanupTask.then( + untrackFactory, + /* v8 ignore next -- Scope.dispose is specified to contain child + * failures; preserve diagnostics if that lower-level contract breaks */ + (cleanupError: unknown) => { + untrackFactory() + try { + this.ctx.logger.error(new AggregateError([reportedError, cleanupError], 'agent lifecycle preparation and rollback failed')) + } catch { + // Only a logger-export failure is swallowed: the original + // preparation error is already propagating to the caller. + } + }, + ) + throw new LifecyclePreparationFailure(reportedError, cleanup) } } @@ -463,7 +839,16 @@ export class AgentLoop extends Service implements AgentFactory { source: SessionStartSource, reservations: RegistrationReservations, ): { agent: ReactLoopAgent; disposeAgent: () => Promise } { - const lifecycle = this.prepareLifecycle(id, options, session, reservations) + let lifecycle: ReturnType + try { + lifecycle = this.prepareLifecycle(this.ctx, id, options, session, reservations) + } catch (error: unknown) { + /* v8 ignore next -- prepareLifecycle converts every failure into its + * rollback-bearing internal error before crossing this boundary */ + if (!(error instanceof LifecyclePreparationFailure)) throw error + void error.dispose() + throw error.reason + } try { lifecycle.publish(source) return { agent: lifecycle.agent, disposeAgent: lifecycle.disposeAgent } @@ -477,10 +862,10 @@ export class AgentLoop extends Service implements AgentFactory { * Build an {@link AgentHandle} for a PREPARED session + a fresh agent. The * handle's `dispose()` runs the composite effect's disposer (see * {@link start}) — which stops the loop, awaits its exit and outstanding - * idle-injection flushes, unregisters the agent, and detaches the session, in - * that order. - * The same composite effect is what a fiber unload disposes, so both teardown - * triggers honor the ordering identically. + * idle-injection flushes, unregisters the agent, detaches the session, + * unwinds the scope, and releases both ids, in that order. Caller-fiber unload + * also invokes an independent sentinel that follows this memoized boundary, + * so handle-first and owner-first races honor the same ordering. * * `dispose()` is MEMOIZED: the underlying cordis effect disposer is * single-shot (a second call returns immediately because the effect's epoch is @@ -491,13 +876,49 @@ export class AgentLoop extends Service implements AgentFactory { * `AgentHandle.dispose(): Promise` contract (mirrors the ACP `quiesce()` * helper). */ - private async startOwned( + private startOwned( + ownerCtx: Context, id: AgentId, options: AgentOptions, session: Session, source: SessionStartSource, reservations: RegistrationReservations, setup?: (agentCtx: Context) => Promise | void, - ): Promise { - const lifecycle = this.prepareLifecycle(id, options, session, reservations) + afterQuiescence?: () => void, + ): OwnedAgentStart { + let lifecycle: ReturnType try { + lifecycle = this.prepareLifecycle(ownerCtx, id, options, session, reservations, afterQuiescence) + } catch (error: unknown) { + /* v8 ignore next 1 -- prepareLifecycle wraps every synchronous failure */ + if (!(error instanceof LifecyclePreparationFailure)) throw error + return { + dispose: error.dispose, + result: (async () => { + await error.dispose() + throw error.reason + })(), + } + } + return { + dispose: lifecycle.disposeAgent, + result: this.finishOwnedStart(lifecycle, id, source, setup), + } + } + + /** Await setup and publish after {@link startOwned} established ownership synchronously. */ + private async finishOwnedStart( + lifecycle: ReturnType, + id: AgentId, + source: SessionStartSource, + setup?: (agentCtx: Context) => Promise | void, + ): Promise { + try { + // Scope minting emits Cordis's synchronous internal/plugin notification. + // A listener can unload either owner there; never run arbitrary setup in + // the already-doomed scope while the tracked disposer is catching up. + /* v8 ignore next 3 -- prepareLifecycle returns success only after its + * final synchronous liveness check; no callback runs before this line */ + if (!lifecycle.active()) { + throw new Error(`agent "${id}" setup aborted: owner disposed during setup`) + } // The owner-disposal branch makes a never-settling setup unable to hold // the transaction or its ID reservations forever. Promise.race installs // rejection observation on setup even if owner disposal wins first. diff --git a/packages/core/agent-loop/tests/agent.spec.ts b/packages/core/agent-loop/tests/agent.spec.ts index b2a4fe30d5..be1a0fe5b5 100644 --- a/packages/core/agent-loop/tests/agent.spec.ts +++ b/packages/core/agent-loop/tests/agent.spec.ts @@ -296,6 +296,39 @@ describe('ReactLoopAgent', () => { expect(agent.status).toBe('disposed') }) + it('a pre-start disposal makes a later driver-start attempt inert', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const session = ctx.sessions.create(SessionId('pre-start-dispose')) + const prepared = prepareReactLoopAgent(ctx, AgentId('pre-start-dispose'), { model: 'mock' }, session) + + await prepared.dispose() + expect(prepared.agent.status).toBe('disposed') + const dispose = prepared.startDriver() + await dispose() + await expect(prepared.agent.done).resolves.toBeUndefined() + expect(prepared.agent.session.events).toEqual([]) + await ctx.fiber.dispose() + }) + + it('does not claim a session when concrete-agent construction rejects options', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const session = ctx.sessions.create(SessionId('constructor-retry')) + const badOptions = { + get model(): string { + throw new Error('bad model getter') + }, + } + + expect(() => prepareReactLoopAgent(ctx, AgentId('bad-constructor'), badOptions, session)) + .toThrow('bad model getter') + const prepared = prepareReactLoopAgent(ctx, AgentId('constructor-retry'), { model: 'mock' }, session) + await prepared.dispose() + expect(prepared.agent.status).toBe('disposed') + await ctx.fiber.dispose() + }) + it('setting the same status does not emit agent/status again', async () => { const adapter = new MockAdapter([textResponse('ok')]) const ctx = await harness(adapter) diff --git a/packages/core/agent-loop/tests/resume.spec.ts b/packages/core/agent-loop/tests/resume.spec.ts index 8ed557faaf..d739ff0ed3 100644 --- a/packages/core/agent-loop/tests/resume.spec.ts +++ b/packages/core/agent-loop/tests/resume.spec.ts @@ -228,6 +228,27 @@ describe('the session-persistence RFC: AgentLoop factory create/resume', () => { await ctx.fiber.dispose() }) + it('successful resume disposal retires both caller ownership sentinels', async () => { + const sessionId = SessionId('resume-retired-sentinels-s') + const agentId = AgentId('resume-retired-sentinels') + const root = await persistSession(sessionId) + const ctx = await mountPersistentHarness(root, new MockAdapter([textResponse('next')])) + const handle = await ctx.agents.resume({ + agentId, + resumeSessionId: sessionId, + agentOptions: { model: 'mock' }, + }) + const sentinelLabels = [ + `agentLoop.resumeLoad(${agentId})`, + `agentLoop.ownerLifecycle(${agentId})`, + ] + + expect(ctx.fiber.getEffects().map(effect => effect.label)).toEqual(expect.arrayContaining(sentinelLabels)) + await handle.dispose() + expect(ctx.fiber.getEffects().filter(effect => sentinelLabels.includes(effect.label))).toEqual([]) + await ctx.fiber.dispose() + }) + it('resume setup rejection publishes nothing, unwinds, and releases both identities', async () => { const sessionId = SessionId('resume-setup-reject') const root = await persistSession(sessionId) @@ -351,6 +372,93 @@ describe('the session-persistence RFC: AgentLoop factory create/resume', () => { await ctx.fiber.dispose() }) + it('AgentLoop unload aborts persistence load and awaits reservation release', async () => { + const sessionId = SessionId('resume-load-factory-unload') + const agentId = AgentId('resume-load-factory-race') + const root = await persistSession(sessionId) + const ctx = new Context() + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + const loopFiber = await ctx.plugin(AgentLoop, { agents: [] }) + await ctx.plugin(SessionPersistenceJsonl, { root }) + ctx.llm.registerAdapter(['mock'], new MockAdapter([textResponse('next')])) + + const snapshot = await ctx.sessionPersistence.load(sessionId) + const lateLoad = Promise.withResolvers() + const loadStarted = Promise.withResolvers() + ctx.sessionPersistence.load = (id) => { + expect(id).toBe(sessionId) + loadStarted.resolve(undefined) + return lateLoad.promise + } + const published: string[] = [] + ctx.on('session/created', () => void published.push('session/created')) + ctx.on('agent/created', () => void published.push('agent/created')) + + const resuming = ctx.agents.resume({ agentId, resumeSessionId: sessionId, agentOptions: { model: 'mock' } }) + await loadStarted.promise + const rejection = expect(promptly(resuming)).rejects.toThrow(/owner disposed during persistence load/) + await promptly(loopFiber.dispose()) + await rejection + + expect(published).toEqual([]) + expect(ctx.agents.get(agentId)).toBeUndefined() + expect(ctx.sessions.get(sessionId)).toBeUndefined() + const agentReservation = ctx.agents.reserve(agentId) + const sessionReservation = ctx.sessions.reserve(sessionId) + sessionReservation.release() + agentReservation.release() + + lateLoad.resolve(structuredClone(snapshot)) + await Promise.resolve() + await Promise.resolve() + expect(published).toEqual([]) + await ctx.fiber.dispose() + }) + + it('option snapshot reentrancy cannot install a resume sentinel after factory unload begins', async () => { + const sessionId = SessionId('resume-snapshot-factory-unload') + const agentId = AgentId('resume-snapshot-factory-race') + const root = await persistSession(sessionId) + const ctx = new Context() + await ctx.plugin(LlmService) + await ctx.plugin(SessionStore) + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(AgentRegistry) + const loopFiber = await ctx.plugin(AgentLoop, { agents: [] }) + await ctx.plugin(SessionPersistenceJsonl, { root }) + ctx.llm.registerAdapter(['mock'], new MockAdapter([textResponse('next')])) + + let loads = 0 + const load = ctx.sessionPersistence.load.bind(ctx.sessionPersistence) + ctx.sessionPersistence.load = (id) => { + loads += 1 + return load(id) + } + const options = { + agentId, + resumeSessionId: sessionId, + get agentOptions() { + void loopFiber.dispose() + return { model: 'mock' } + }, + } + + await expect(ctx.agents.resume(options)).rejects.toThrow('agent loop is not active') + await loopFiber.dispose() + expect(loads).toBe(0) + expect(ctx.fiber.getEffects().filter(effect => effect.label === `agentLoop.resumeLoad(${agentId})`)).toEqual([]) + const agentReservation = ctx.agents.reserve(agentId) + const sessionReservation = ctx.sessions.reserve(sessionId) + sessionReservation.release() + agentReservation.release() + await ctx.fiber.dispose() + }) + it('snapshots resume identities and agent options before persistence load', async () => { const sessionId = SessionId('resume-snapshot-source') const root = await persistSession(sessionId) diff --git a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts index 5ed11d396a..275fdadb5a 100644 --- a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts +++ b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts @@ -1,5 +1,5 @@ import { describe, expect, it } from 'vitest' -import { Context } from 'cordis' +import { Context, symbols, type EffectMeta, type Fiber } from 'cordis' import LlmService from '@deepseek-ai/dsh-llm' import SessionStore, { SessionId, type SessionEvent } from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' @@ -12,16 +12,20 @@ import * as concreteAgentModule from '../src/agent.ts' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import { MockAdapter, textResponse } from './mock-adapter.ts' -async function harness(adapter: MockAdapter = new MockAdapter([textResponse('ok')])) { +async function harnessWithLoop(adapter: MockAdapter = new MockAdapter([textResponse('ok')])): Promise<{ ctx: Context; loopFiber: Fiber }> { const ctx = new Context() await ctx.plugin(LlmService) await ctx.plugin(SessionStore) await ctx.plugin(SystemPrompt, { persona: 'You are the deployment.' }) await ctx.plugin(ToolRegistry) await ctx.plugin(AgentRegistry) - await ctx.plugin(AgentLoop, { agents: [] }) + const loopFiber = await ctx.plugin(AgentLoop, { agents: [] }) ctx.llm.registerAdapter(['mock'], adapter) - return ctx + return { ctx, loopFiber } +} + +async function harness(adapter: MockAdapter = new MockAdapter([textResponse('ok')])): Promise { + return (await harnessWithLoop(adapter)).ctx } function waitForIdle(ctx: Context, agent: ReactLoopAgent): Promise { @@ -37,6 +41,17 @@ function waitForIdle(ctx: Context, agent: ReactLoopAgent): Promise { const text = (t: string): ContentBlock[] => [{ type: 'text', text: t }] +/** Invoke the exact lifecycle effect to exercise same-stack reentrant teardown. */ +function disposeCurrentLifecycle(ownerCtx: Context): void { + const lifecycle = [...ownerCtx.fiber._disposables] + .find((dispose) => { + const effect = (dispose as typeof dispose & { [symbols.effect]?: EffectMeta })[symbols.effect] + return effect?.label === 'agentLoop.lifecycle()' + }) + if (lifecycle === undefined) throw new Error('agent lifecycle effect not found') + void lifecycle() +} + describe('agent scope lifecycle', () => { it('wires agent.ctx: tagged with the agent, DX field set, ctx.agent safe elsewhere', async () => { const ctx = await harness() @@ -312,6 +327,508 @@ describe('agent scope lifecycle', () => { expect(ctx.sessions.get(SessionId('owner-race-s-2'))).toBeUndefined() }) + it('an AgentLoop unload aborts pending setup, awaits cleanup, and releases both ids', async () => { + const { ctx, loopFiber } = await harnessWithLoop() + const gate = Promise.withResolvers() + const setupStarted = Promise.withResolvers() + const published: string[] = [] + ctx.on('session/created', () => void published.push('session/created')) + ctx.on('agent/created', () => void published.push('agent/created')) + + const creating = ctx.agents.create({ + agentId: AgentId('factory-setup-race'), + sessionId: SessionId('factory-setup-race-s'), + agentOptions: { model: 'mock' }, + setup: async () => { + setupStarted.resolve(undefined) + await gate.promise + }, + }) + await setupStarted.promise + + await loopFiber.dispose() + await expect(creating).rejects.toThrow(/owner disposed during setup/) + expect(published).toEqual([]) + expect(ctx.agents.get(AgentId('factory-setup-race'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('factory-setup-race-s'))).toBeUndefined() + + // Factory unload itself reached the reservation-release boundary. + const agentReservation = ctx.agents.reserve(AgentId('factory-setup-race')) + const sessionReservation = ctx.sessions.reserve(SessionId('factory-setup-race-s')) + sessionReservation.release() + agentReservation.release() + gate.resolve(undefined) + await ctx.fiber.dispose() + }) + + it('factory unload during scope minting skips setup and awaits provisional cleanup', async () => { + const { ctx, loopFiber } = await harnessWithLoop() + let unloaded = false + let setupCalls = 0 + ctx.on('internal/plugin', (fiber) => { + if (unloaded || fiber.name !== 'scope') return + unloaded = true + void loopFiber.dispose() + }) + + const creating = ctx.agents.create({ + agentId: AgentId('factory-scope-race'), + sessionId: SessionId('factory-scope-race-s'), + agentOptions: { model: 'mock' }, + setup: () => { setupCalls += 1 }, + }) + await expect(creating).rejects.toThrow(/owner disposed during setup/) + await loopFiber.dispose() + expect(setupCalls).toBe(0) + expect(ctx.agents.get(AgentId('factory-scope-race'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('factory-scope-race-s'))).toBeUndefined() + + const agentReservation = ctx.agents.reserve(AgentId('factory-scope-race')) + const sessionReservation = ctx.sessions.reserve(SessionId('factory-scope-race-s')) + sessionReservation.release() + agentReservation.release() + await ctx.fiber.dispose() + }) + + it('caller unload during scope minting owns and drains the half-built child', async () => { + const ctx = await harness() + const gate = Promise.withResolvers() + const cleanupStarted = Promise.withResolvers() + let ownerFiber!: Fiber + let ownerDisposal!: Promise + let scopeFiber: Fiber | undefined + let creating!: ReturnType + ctx.on('internal/plugin', (fiber) => { + if (fiber.name !== 'scope' || scopeFiber !== undefined) return + scopeFiber = fiber + fiber.ctx.effect(() => async () => { + cleanupStarted.resolve(undefined) + await gate.promise + }) + ownerDisposal = ownerFiber.dispose() + }) + + const owner = ctx.plugin(Object.assign((inner: Context) => { + ownerFiber = inner.fiber + creating = inner.agents.create({ + agentId: AgentId('caller-scope-race'), + sessionId: SessionId('caller-scope-race-s'), + agentOptions: { model: 'mock' }, + }) + }, { inject: ['agents'] })) + + await cleanupStarted.promise + let ownerSettled = false + void ownerDisposal.then(() => { ownerSettled = true }) + await Promise.resolve() + expect(ownerSettled).toBe(false) + gate.resolve(undefined) + await expect(creating).rejects.toThrow(/owner disposed during setup/) + await ownerDisposal + await owner + expect(scopeFiber?.uid).toBeNull() + expect(ctx.agents.get(AgentId('caller-scope-race'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('caller-scope-race-s'))).toBeUndefined() + await owner.dispose() + await ctx.fiber.dispose() + }) + + it('synchronous create rechecks provider liveness before its first publication edge', async () => { + const { ctx, loopFiber } = await harnessWithLoop() + const sessionsBefore = ctx.sessions.list().length + let unloaded = false + ctx.on('internal/plugin', (fiber) => { + if (unloaded || fiber.name !== 'scope') return + unloaded = true + void loopFiber.dispose() + }) + + expect(() => ctx.agentLoop.create(AgentId('config-scope-race'), { model: 'mock' })) + .toThrow(/owner disposed during setup/) + await loopFiber.dispose() + expect(ctx.agents.get(AgentId('config-scope-race'))).toBeUndefined() + expect(ctx.sessions.list()).toHaveLength(sessionsBefore) + await ctx.fiber.dispose() + }) + + it('synchronous create releases both reservations when session preparation fails', async () => { + const ctx = await harness() + const id = AgentId('config-prepare-failure') + + expect(() => ctx.agentLoop.create(id, { model: 'mock' }, { cwd: 'relative' })) + .toThrow(/absolute path/) + const replacement = ctx.agentLoop.create(id, { model: 'mock' }, { cwd: '/recovered' }) + expect(ctx.agents.get(id)).toBe(replacement) + await replacement.whenIdle() + await ctx.fiber.dispose() + }) + + it('turns owner disposal from the caller association getter into a rollback boundary', async () => { + const ctx = await harness() + let creating!: ReturnType + let getterCalls = 0 + const creationStarted = Promise.withResolvers() + const owner = ctx.plugin(Object.assign((inner: Context) => { + Object.defineProperty(inner, 'agent', { + configurable: true, + get() { + getterCalls += 1 + void inner.fiber.dispose() + return undefined + }, + }) + creating = inner.agents.create({ + agentId: AgentId('association-dispose'), + sessionId: SessionId('association-dispose-s'), + agentOptions: { model: 'mock' }, + }) + creationStarted.resolve(undefined) + }, { inject: ['agents'] })) + + await creationStarted.promise + await expect(creating).rejects.toThrow(/owner disposed during setup/) + await owner + expect(getterCalls).toBe(1) + expect(ctx.agents.get(AgentId('association-dispose'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('association-dispose-s'))).toBeUndefined() + const replacement = await ctx.agents.create({ + agentId: AgentId('association-dispose'), + sessionId: SessionId('association-dispose-s'), + agentOptions: { model: 'mock' }, + }) + await replacement.dispose() + await ctx.fiber.dispose() + }) + + it('factory unload awaits reservations when reentrant scope preparation throws', async () => { + const { ctx, loopFiber } = await harnessWithLoop() + let triggered = false + ctx.on('internal/plugin', (fiber) => { + if (triggered || fiber.name !== 'scope') return + triggered = true + void loopFiber.dispose() + throw new Error('scope preparation failed') + }) + + await expect(ctx.agents.create({ + agentId: AgentId('factory-scope-throw'), + sessionId: SessionId('factory-scope-throw-s'), + agentOptions: { model: 'mock' }, + })).rejects.toThrow('scope preparation failed') + await loopFiber.dispose() + expect(ctx.agents.get(AgentId('factory-scope-throw'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('factory-scope-throw-s'))).toBeUndefined() + + const agentReservation = ctx.agents.reserve(AgentId('factory-scope-throw')) + const sessionReservation = ctx.sessions.reserve(SessionId('factory-scope-throw-s')) + sessionReservation.release() + agentReservation.release() + await ctx.fiber.dispose() + }) + + it('factory unload during session preparation awaits create reservation release', async () => { + const { ctx, loopFiber } = await harnessWithLoop() + let unloading!: Promise + const meta = { + get cwd() { + unloading = loopFiber.dispose() + return '/factory-unload' + }, + } + + const creating = ctx.agents.create({ + agentId: AgentId('factory-prepare-race'), + sessionId: SessionId('factory-prepare-race-s'), + agentOptions: { model: 'mock' }, + meta, + }) + await unloading + await expect(creating).rejects.toThrow('agent loop is not active') + + const agentReservation = ctx.agents.reserve(AgentId('factory-prepare-race')) + const sessionReservation = ctx.sessions.reserve(SessionId('factory-prepare-race-s')) + sessionReservation.release() + agentReservation.release() + await ctx.fiber.dispose() + }) + + it('AgentLoop unload is a structural co-owner of every live programmatic agent', async () => { + const { ctx, loopFiber } = await harnessWithLoop() + const loop = ctx.agentLoop + const agentId = AgentId('factory-live') + const handle = await ctx.agents.create({ + agentId, + sessionId: SessionId('factory-live-s'), + agentOptions: { model: 'mock' }, + }) + + await loopFiber.dispose() + expect(handle.agent.status).toBe('disposed') + expect(ctx.agents.get(agentId)).toBeUndefined() + expect(ctx.sessions.get(SessionId('factory-live-s'))).toBeUndefined() + expect(ctx.fiber.getEffects().filter(effect => effect.label === `agentLoop.ownerLifecycle(${agentId})`)).toEqual([]) + // The consumer handle shares the provider's completed quiescence boundary. + await handle.dispose() + + const agentReservation = ctx.agents.reserve(agentId) + const sessionReservation = ctx.sessions.reserve(SessionId('factory-live-s')) + sessionReservation.release() + agentReservation.release() + await expect(loop.createAgent(ctx, { + agentId: AgentId('factory-inactive'), + sessionId: SessionId('factory-inactive-s'), + })).rejects.toThrow('agent loop is not active') + await ctx.fiber.dispose() + }) + + it('keeps AgentLoop dependencies available when the caller injects only agents', async () => { + const ctx = await harness() + let creating!: ReturnType + const owner = await ctx.plugin(Object.assign((inner: Context) => { + creating = inner.agents.create({ + agentId: AgentId('dependency-origin'), + sessionId: SessionId('dependency-origin-s'), + agentOptions: { model: 'mock' }, + setup: (agentCtx) => { + agentCtx.tools.register({ + name: 'dependency-origin-tool', + description: 'proves AgentLoop dependency origin', + parameters: {}, + execute: () => Promise.resolve(text('ok')), + }) + agentCtx.systemPrompt.section({ + name: 'dependency-origin-section', + order: 1, + text: 'factory dependency surface', + }) + }, + }) + }, { inject: ['agents'] })) + + const handle = await creating + const assembly = await ctx.systemPrompt.assemble(assembleContextFor(handle.agent)) + expect(assembly.tools.map(tool => tool.name)).toContain('dependency-origin-tool') + expect(assembly.sections.map(section => section.name)).toContain('dependency-origin-section') + await handle.dispose() + await owner.dispose() + await ctx.fiber.dispose() + }) + + it('keeps both entries and the scope live through a reentrant session/created teardown', async () => { + const ctx = await harness() + let ownerCtx!: Context + let creating!: ReturnType + const lifecycle: string[] = [] + ctx.on('session/created', (session) => { + if (session.id !== SessionId('session-created-barrier-s')) return + lifecycle.push('session-created:dispose') + disposeCurrentLifecycle(ownerCtx) + }) + ctx.on('session/created', (session) => { + if (session.id !== SessionId('session-created-barrier-s')) return + const agent = ctx.agents.get(AgentId('session-created-barrier'))! + expect(ctx.sessions.get(session.id)).toBe(session) + expect(agent.session).toBe(session) + agent.ctx.effect(() => () => { lifecycle.push('scope-disposed') }) + lifecycle.push('session-created:observer') + }) + ctx.on('agent/created', () => void lifecycle.push('agent-created')) + ctx.on('agent/disposed', () => void lifecycle.push('agent-disposed')) + ctx.on('session/disposed', (session) => { + if (session.id === SessionId('session-created-barrier-s')) lifecycle.push('session-disposed') + }) + + const owner = await ctx.plugin(Object.assign((inner: Context) => { + ownerCtx = inner + creating = inner.agents.create({ + agentId: AgentId('session-created-barrier'), + sessionId: SessionId('session-created-barrier-s'), + agentOptions: { model: 'mock' }, + }) + }, { inject: ['agents'] })) + + await expect(creating).rejects.toThrow(/owner disposed during setup/) + await owner.dispose() + expect(lifecycle).toEqual([ + 'session-created:dispose', + 'session-created:observer', + 'session-disposed', + 'scope-disposed', + ]) + expect(ctx.agents.get(AgentId('session-created-barrier'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('session-created-barrier-s'))).toBeUndefined() + await ctx.fiber.dispose() + }) + + it('keeps both entries and the scope live through a reentrant agent/created teardown', async () => { + const ctx = await harness() + let ownerCtx!: Context + let creating!: ReturnType + const lifecycle: string[] = [] + ctx.on('session/created', (session) => { + if (session.id === SessionId('agent-created-barrier-s')) lifecycle.push('session-created') + }) + ctx.on('agent/created', (agent) => { + if (agent.id !== AgentId('agent-created-barrier')) return + lifecycle.push('agent-created:dispose') + disposeCurrentLifecycle(ownerCtx) + }) + ctx.on('agent/created', (agent) => { + if (agent.id !== AgentId('agent-created-barrier')) return + expect(ctx.agents.get(agent.id)).toBe(agent) + expect(ctx.sessions.get(agent.session.id)).toBe(agent.session) + agent.ctx.effect(() => () => { lifecycle.push('scope-disposed') }) + lifecycle.push('agent-created:observer') + }) + ctx.on('agent/disposed', (agent) => { + if (agent.id === AgentId('agent-created-barrier')) lifecycle.push('agent-disposed') + }) + ctx.on('session/disposed', (session) => { + if (session.id === SessionId('agent-created-barrier-s')) lifecycle.push('session-disposed') + }) + + const owner = await ctx.plugin(Object.assign((inner: Context) => { + ownerCtx = inner + creating = inner.agents.create({ + agentId: AgentId('agent-created-barrier'), + sessionId: SessionId('agent-created-barrier-s'), + agentOptions: { model: 'mock' }, + }) + }, { inject: ['agents'] })) + + await expect(creating).rejects.toThrow(/owner disposed during setup/) + await owner.dispose() + expect(lifecycle).toEqual([ + 'session-created', + 'agent-created:dispose', + 'agent-created:observer', + 'agent-disposed', + 'session-disposed', + 'scope-disposed', + ]) + expect(ctx.agents.get(AgentId('agent-created-barrier'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('agent-created-barrier-s'))).toBeUndefined() + await ctx.fiber.dispose() + }) + + it('rechecks owner liveness after carrier capture before the first creation edge', async () => { + const ctx = await harness() + let ownerCtx!: Context + const owner = await ctx.plugin(Object.assign((inner: Context) => { ownerCtx = inner }, { inject: ['agents'] })) + const agentId = AgentId('carrier-owner-race') + const sessionId = SessionId('carrier-owner-race-s') + const lifecycle: string[] = [] + let filterReads = 0 + ctx.on('session/created', (session) => { + if (session.id === sessionId) lifecycle.push('session-created') + }) + ctx.on('session/disposed', (session) => { + if (session.id === sessionId) lifecycle.push('session-disposed') + }) + ctx.on('agent/created', (agent) => { + if (agent.id === agentId) lifecycle.push('agent-created') + }) + ctx.on('agent/disposed', (agent) => { + if (agent.id === agentId) lifecycle.push('agent-disposed') + }) + + const creating = ownerCtx.agents.create({ + agentId, + sessionId, + agentOptions: { model: 'mock' }, + setup(agentCtx) { + Object.defineProperty(agentCtx.agent!.session, Context.filter, { + configurable: true, + get() { + filterReads += 1 + void owner.dispose() + return undefined + }, + }) + }, + }) + + await expect(creating).rejects.toThrow(/owner disposed during setup/) + await owner.dispose() + expect(filterReads).toBe(1) + expect(lifecycle).toEqual([]) + expect(ctx.agents.get(agentId)).toBeUndefined() + expect(ctx.sessions.get(sessionId)).toBeUndefined() + await ctx.fiber.dispose() + }) + + it('rechecks caller liveness after creation listeners before unlocking the driver', async () => { + const ctx = await harness() + const starts: string[] = [] + let ownerCtx!: Context + let creating!: ReturnType + ctx.on('agent/session-start', agent => void starts.push(agent.id)) + ctx.on('agent/created', (agent) => { + if (agent.id === AgentId('listener-dispose')) void ownerCtx.fiber.dispose() + }) + + const owner = await ctx.plugin(Object.assign((inner: Context) => { + ownerCtx = inner + creating = inner.agents.create({ + agentId: AgentId('listener-dispose'), + sessionId: SessionId('listener-dispose-s'), + agentOptions: { model: 'mock' }, + }) + }, { inject: ['agents'] })) + + await expect(creating).rejects.toThrow(/owner disposed during setup/) + await owner.dispose() + expect(starts).toEqual([]) + expect(ctx.agents.get(AgentId('listener-dispose'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('listener-dispose-s'))).toBeUndefined() + await ctx.fiber.dispose() + }) + + it('rechecks caller liveness after session-start before starting the driver', async () => { + const ctx = await harness() + let ownerCtx!: Context + let creating!: ReturnType + let announced!: ReactLoopAgent + const statuses: string[] = [] + let scopeDisposed = false + let observerSawLive = false + ctx.on('agent/status', (agent, status) => { + if (agent.id === AgentId('session-start-dispose')) statuses.push(status) + }) + ctx.on('agent/session-start', (agent) => { + if (agent.id !== AgentId('session-start-dispose')) return + announced = agent as ReactLoopAgent + disposeCurrentLifecycle(ownerCtx) + }) + ctx.on('agent/session-start', (agent) => { + if (agent.id !== AgentId('session-start-dispose')) return + expect(ctx.agents.get(agent.id)).toBe(agent) + expect(ctx.sessions.get(agent.session.id)).toBe(agent.session) + agent.ctx.effect(() => () => { scopeDisposed = true }) + observerSawLive = true + }) + + const owner = await ctx.plugin(Object.assign((inner: Context) => { + ownerCtx = inner + creating = inner.agents.create({ + agentId: AgentId('session-start-dispose'), + sessionId: SessionId('session-start-dispose-s'), + agentOptions: { model: 'mock' }, + }) + }, { inject: ['agents'] })) + + await expect(creating).rejects.toThrow(/owner disposed during setup/) + await owner.dispose() + expect(announced.status).toBe('disposed') + expect(statuses).toEqual(['disposed']) + expect(observerSawLive).toBe(true) + expect(scopeDisposed).toBe(true) + expect(announced.session.events).toEqual([]) + expect(ctx.agents.get(AgentId('session-start-dispose'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('session-start-dispose-s'))).toBeUndefined() + await ctx.fiber.dispose() + }) + it('a rejecting setup publishes nothing and unwinds the unpublished scope', async () => { const ctx = await harness() const published: string[] = [] @@ -527,6 +1044,89 @@ describe('agent scope lifecycle', () => { await unload }) + it('successful handle disposal retires its caller ownership sentinel', async () => { + const ctx = await harness() + const agentId = AgentId('retired-owner-sentinel') + const handle = await ctx.agents.create({ + agentId, + sessionId: SessionId('retired-owner-sentinel-s'), + agentOptions: { model: 'mock' }, + }) + + expect(ctx.fiber.getEffects().map(effect => effect.label)).toContain(`agentLoop.ownerLifecycle(${agentId})`) + await handle.dispose() + expect(ctx.fiber.getEffects().filter(effect => effect.label === `agentLoop.ownerLifecycle(${agentId})`)).toEqual([]) + await ctx.fiber.dispose() + }) + + it('owner unload after handle-first teardown follows the same in-flight boundary', async () => { + const ctx = await harness() + const gate = Promise.withResolvers() + const cleanupStarted = Promise.withResolvers() + let handle!: Awaited> + const owner = await ctx.plugin(Object.assign(async (inner: Context) => { + handle = await inner.agents.create({ + agentId: AgentId('manual-first'), + sessionId: SessionId('manual-first-s'), + agentOptions: { model: 'mock' }, + setup(agentCtx) { + agentCtx.effect(() => async () => { + cleanupStarted.resolve(undefined) + await gate.promise + }) + }, + }) + }, { inject: ['agents'] })) + + const disposing = handle.dispose() + await cleanupStarted.promise + let ownerSettled = false + const unloading = owner.dispose().then(() => { ownerSettled = true }) + await Promise.resolve() + expect(ownerSettled).toBe(false) + gate.resolve(undefined) + await Promise.all([disposing, unloading]) + expect(ctx.agents.get(AgentId('manual-first'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('manual-first-s'))).toBeUndefined() + await ctx.fiber.dispose() + }) + + it('retains both identity reservations until scope teardown reaches quiescence', async () => { + const ctx = await harness() + const gate = Promise.withResolvers() + const cleanupStarted = Promise.withResolvers() + const sessionDisposed = Promise.withResolvers() + const agentId = AgentId('quiescent-reservation') + const sessionId = SessionId('quiescent-reservation-s') + ctx.on('session/disposed', (session) => { + if (session.id === sessionId) sessionDisposed.resolve(undefined) + }) + const first = await ctx.agents.create({ + agentId, + sessionId, + agentOptions: { model: 'mock' }, + setup(agentCtx) { + agentCtx.effect(() => async () => { + cleanupStarted.resolve(undefined) + await gate.promise + }) + }, + }) + + const disposing = first.dispose() + await Promise.all([sessionDisposed.promise, cleanupStarted.promise]) + expect(ctx.agents.get(agentId)).toBeUndefined() + expect(ctx.sessions.get(sessionId)).toBeUndefined() + await expect(ctx.agents.create({ agentId, sessionId, agentOptions: { model: 'mock' } })) + .rejects.toThrow(/reserved/) + + gate.resolve(undefined) + await disposing + const replacement = await ctx.agents.create({ agentId, sessionId, agentOptions: { model: 'mock' } }) + await replacement.dispose() + await ctx.fiber.dispose() + }) + it('handle.dispose() awaits an idle-injection flush before unregistering or detaching', async () => { const ctx = await harness() const handle = await ctx.agents.create({ diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index 1b1e65a289..84a3877298 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -8,28 +8,28 @@ Tracks live agents so UI, hook, and orchestrator plugins can find them without i ### Public API -The scoped-registration surface: `Agent.ctx` is the agent's scope context (`dsh-scope`, key = the agent) — register tools/sections/variables/listeners through it for that agent alone, all unwound on disposal. `agentEvents(ctx, agent)` is the fused dispatcher every agent-subject event goes through (carrier + injected subject in one move); its notification mode invokes every listener and contains both synchronous throws and returned-promise rejections. `assembleContextFor(agent)` builds the per-agent assembly context (`agent` + `scope` together). `CreateAgentOptions.setup(agentCtx)` and `ResumeAgentOptions.setup(agentCtx)` compose a fresh or resumed agent's scoped world while registry/store-owned reservation capabilities keep both identities unpublished; creation awaits setup and a same-turn owner-unload checkpoint before either creation notification or the first assembly. Setup composes, it never drives or publishes: driving verbs and ordinary agent/session insertion both reject until the owning publication boundary. +The scoped-registration surface: `Agent.ctx` is the agent's scope context (`dsh-scope`, key = the agent) — register tools/sections/variables/listeners through it for that agent alone, all unwound on disposal. `agentEvents(ctx, agent)` is the fused dispatcher for ordinary agent-subject operations (carrier + injected subject in one move); its notification mode invokes every listener and contains both synchronous throws and returned-promise rejections. The registry lifecycle pair deliberately reuses the stable carrier captured before entry commit and applies the same per-listener containment directly. `assembleContextFor(agent)` builds the per-agent assembly context (`agent` + `scope` together). `CreateAgentOptions.setup(agentCtx)` and `ResumeAgentOptions.setup(agentCtx)` compose a fresh or resumed agent's scoped world while registry/store-owned reservation capabilities keep both identities unpublished; creation awaits setup and a same-turn owner-unload checkpoint before either creation notification or the first assembly. Setup composes, it never drives or publishes: driving verbs and ordinary agent/session insertion both reject until the owning publication boundary. - `ctx.agents.register(agent: Agent): () => Promise | void` — record an **already-constructed** agent. Disposed with the calling fiber. -- Advanced ordered lifecycle: `reserve(id)` returns an opaque unpublished-identity capability owned by the calling fiber (owner unload releases an abandoned reservation); `enter(agent, reservation?): () => void` inserts under one captured, runtime-pinned id without announcing; and `announce(agent)` emits `agent/created` exactly once for that exact live entry, rejecting repeat or reentrant announcement. While reserved, bare `register`/`enter` calls for the id reject, including from setup. The factory uses this split; ordinary plugins use `register()`. +- Advanced ordered lifecycle: `reserve(id)` returns an opaque unpublished-identity capability whose `release` is the exact owner effect disposer, allowing the factory to place ID release after scope quiescence instead of racing owner unload as a sibling. `enter(agent, reservation?): () => void` claims the ID across runtime pinning and stable lifecycle-carrier construction, then inserts without announcing; a Proxy trap or filter getter cannot reentrantly overwrite the commit. `announce(agent)` reuses that carrier and emits `agent/created` exactly once for the exact live entry, rejecting repeat or reentrant announcement. A detach requested synchronously by a creation listener is deferred until that dispatch unwinds, and every detach is exact-object guarded, so a later listener cannot observe inverted lifecycle edges and a stale capability cannot delete a replacement. While reserved, bare `register`/`enter` calls for the id reject, including from setup. The factory uses this split; ordinary plugins use `register()`. - `ctx.agents.get(id: AgentId): Agent | undefined` - `ctx.agents.list(): Agent[]` #### Factory seam (creation) -Agent *creation* is provided by the plugin implementing `AgentFactory` (`dsh-agent-loop`), registered via `setFactory`. This keeps creation on the `dsh-agent` interface so consumers (UI, the ACP bridge) program against `ctx.agents` without depending on the concrete loop package. +Agent *creation* is provided by the plugin implementing `AgentFactory` (`dsh-agent-loop`), registered via `setFactory`. This keeps creation on the `dsh-agent` interface so consumers (UI, the ACP bridge) program against `ctx.agents` without depending on the concrete loop package. The registry canonicalizes an already traced Service to its concrete target, captures and validates the factory's `createAgent` and `resume` callbacks once at registration, retains that target as their intentional receiver, and passes each call an explicit caller-bound `ownerCtx`; later method replacement cannot redirect a transaction, double tracing cannot break raw-identity state, and a plain non-Cordis factory receives enough context to implement caller ownership. - `ctx.agents.setFactory(factory: AgentFactory): () => Promise | void` — register the creation factory (the loop calls this on construction). Throws on a second factory; the slot clears on dispose. -- `ctx.agents.create(options: CreateAgentOptions): Promise` — snapshot caller-owned IDs/options/metadata and hand the one-read raw seed synchronously to the session boundary for one-pass lossless-JSON materialization, construct and await optional setup while unpublished, insert and announce both session and agent, open the `agent/session-start` driving boundary, then start a new loop on the caller-supplied `sessionId`. Registry/store reservation capabilities block every competing public insertion across setup; seed rejection, setup rejection, or owner unload publishes nothing. Publication is rollback-covered: if a creation listener throws, entries and scope unwind but effects of already-delivered notifications remain observable; any creation announcement that began is paired by `agent/disposed` or `session/disposed`. Rejects if no factory is registered. -- `ctx.agents.resume(options: ResumeAgentOptions): Promise` — snapshot caller-owned IDs/options, load a persisted session ([session persistence](../../../docs/rfc/implemented/architecture/2026-06-14-session-persistence.md)), mint a fresh agent scope, await optional setup while unpublished, then follow the same insert → announce → session-start → loop-start boundary. The IDs are reserved across persistence load and setup; load/setup rejection or owner unload publishes nothing. Rejects if no factory is registered or session persistence is unconfigured. +- `ctx.agents.create(options: CreateAgentOptions): Promise` — snapshot caller-owned IDs/options/metadata and hand the one-read raw seed synchronously to the session boundary for one-pass lossless-JSON materialization, construct and await optional setup while unpublished, insert both session and agent, then recheck caller and factory liveness before the first creation announcement and after each later notification boundary. Only a still-live transaction opens `agent/session-start` and starts a new loop on the caller-supplied `sessionId`. Registry/store reservation capabilities block every competing public insertion across setup; seed rejection, setup rejection, caller unload, factory unload, or cancellation from a creation listener publishes no drivable agent. Publication is rollback-covered: if a creation listener throws, entries and scope unwind but effects of already-delivered notifications remain observable; any creation announcement that began is paired by `agent/disposed` or `session/disposed`. Rejects if no factory is registered. +- `ctx.agents.resume(options: ResumeAgentOptions): Promise` — snapshot caller-owned IDs/options, load a persisted session ([session persistence](../../../docs/rfc/implemented/architecture/2026-06-14-session-persistence.md)), mint a fresh agent scope, await optional setup while unpublished, then follow the same insert both → pre-announcement liveness check → session announcement → liveness check → agent announcement → liveness check → session-start → final liveness check → loop-start boundary. The IDs are reserved across persistence load, setup, and teardown quiescence; load/setup rejection, caller unload, or factory unload leaves no drivable or live publication, while any creation edge that already began is paired during rollback. Rejects if no factory is registered or session persistence is unconfigured. -`AgentHandle = { agent: Agent; dispose(): Promise }`. The disposer is a **capability** — only the holder can tear this agent down. `dispose()` stops the loop, `await`s its exit plus every outstanding idle-injection flush (quiescence — NOT just the `disposed` status flip), unregisters the agent, removes its session from the store, and finally unwinds its scoped world. This order captures every agent-started `session/flush` before the session is detached and keeps scoped listeners alive through those checkpoints. `ctx.agents.get(id)` still returns a bare `Agent` — the handle is only for the OWNER that created it. The ACP bridge and in-process subagent backends are production consumers; config-created agents are owned by the loop fiber and never need a handle. +`AgentHandle = { agent: Agent; dispose(): Promise }`. The disposer is a **consumer capability** — no observer holding the bare registry entry can tear the agent down. The caller fiber and the registered factory provider are structural co-owners: caller unload enforces structured ownership, while factory unload must stop old instances because their scoped dependency surface belongs to that provider. `dispose()` from any owner reaches one memoized quiescence boundary: it stops the loop, `await`s its exit plus every outstanding idle-injection flush (not just the `disposed` status flip), unregisters the agent, removes its session from the store, and finally unwinds its scoped world. This order captures every agent-started `session/flush` before the session is detached and keeps scoped listeners alive through those checkpoints. `ctx.agents.get(id)` still returns a bare `Agent`; the ACP bridge and in-process subagent backends hold consumer handles, while config-created agents are already owned by the loop fiber. ### Live events `dsh-agent` declares the live `agent/*` coordination vocabulary so plugins do not depend on the concrete loop. Exact signatures, dispatch modes, scope-filtering rules, and payload contracts live in the generated [Cordis event catalog](../../../docs/cordis-catalog/events.md); the [architecture turn flow](../../../docs/architecture.md#turn-flow) shows their order relative to durable session events. -The lifecycle edges have two important local caveats. `agent/created` runs after scoped setup and after both session and agent registry entries exist, but concrete driving remains locked until the immediately following `agent/session-start`; that non-vetoing notification is the first supported startup injection point. `agent/disposed` runs after the driver is quiescent and the agent leaves the registry, while ordered teardown may still be detaching its session and unwinding its scope. +The lifecycle edges have two important local caveats. `agent/created` runs after scoped setup and after both session and agent registry entries exist, but concrete driving remains locked until the immediately following `agent/session-start`; that non-vetoing notification is the first supported startup injection point. `agent/disposed` always means the exact agent has left the registry. AgentLoop emits it after its driver is quiescent, while ordered teardown may still be detaching the session and unwinding the scope; custom agents registered directly own any stronger driver-ordering contract themselves. Most interception points are cooperative waterfalls returning seam-specific decisions. `agent/pre-step` is a serial surface-mutation checkpoint, while `agent/turn-stop` is the owner-final exception: it runs after ordinary continuation and steering folding, and its terminal state remains through turn close and flush so steering from those later listeners cannot create an extra step or turn. Ordinary queued prompts remain intact. The full rationale is in [the agent-scope RFC](../../../docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md#owner-final-policy-boundaries). diff --git a/packages/core/agent/src/dispatch.ts b/packages/core/agent/src/dispatch.ts index 881faa675f..f8726c50cc 100644 --- a/packages/core/agent/src/dispatch.ts +++ b/packages/core/agent/src/dispatch.ts @@ -1,12 +1,13 @@ /** - * Fused scope-carrier dispatch for agent-subject events, plus the assembly - * context builder. The ONE sanctioned spelling for dispatching `agent/*` - * events: `agentEvents(ctx, agent).waterfall('agent/request', …)` builds the - * scope carrier ({@link scopeTarget} keyed by the agent) AND injects the - * subject as the first event argument in one move, so the correct dispatch is - * also the shortest — a dispatch site cannot pass a carrier keyed to one - * agent while naming another as the subject, which is the invariant the - * dev-mode scoped-dispatch check asserts at runtime. + * Fused scope-carrier dispatch for agent-subject operations, plus the assembly + * context builder. The sanctioned ordinary spelling is + * `agentEvents(ctx, agent).waterfall('agent/request', …)`: it builds the scope + * carrier ({@link scopeTarget} keyed by the agent) AND injects the subject as + * the first argument in one move, so a site cannot name a different subject. + * The registry lifecycle pair is the deliberate exception: `enter()` captures + * one stable carrier before commit and `announce()`/detach dispatch through it + * directly, preventing a mutable filter getter from changing or reentering the + * paired edges. The dev scoped-dispatch invariant checks both shapes. * * @module @deepseek-ai/dsh-agent/dispatch */ diff --git a/packages/core/agent/src/index.ts b/packages/core/agent/src/index.ts index be7bb02c67..5526006796 100644 --- a/packages/core/agent/src/index.ts +++ b/packages/core/agent/src/index.ts @@ -5,11 +5,11 @@ * @module @deepseek-ai/dsh-agent */ -import { Context, Service } from 'cordis' +import { Context, getTraceable, Service, symbols } from 'cordis' import { scopeTarget } from '@deepseek-ai/dsh-scope' +import type { Scoped } from '@deepseek-ai/dsh-scope' import type { SessionEvent, SessionId } from '@deepseek-ai/dsh-session' import type { Agent, AgentId, AgentOptions } from './types.ts' -import { agentEvents } from './dispatch.ts' export * from './types.ts' export { agentEvents, assembleContextFor } from './dispatch.ts' @@ -112,17 +112,21 @@ export interface ResumeAgentOptions { /** * An owned agent plus its disposer, returned by {@link AgentRegistry.create} / - * {@link AgentRegistry.resume}. The disposer is a CAPABILITY: only the holder - * can tear this agent down. `dispose()` stops the loop, awaits its exit and - * every outstanding idle-injection flush (quiescence — NOT just the `disposed` + * {@link AgentRegistry.resume}. The disposer is a CAPABILITY: among consumers, + * only the holder can tear this agent down. The registered factory provider is + * also a structural owner because the scoped agent depends on that provider's + * service surface; provider unload stops and drains every live handle it made. + * `dispose()` stops the loop, awaits its exit and every outstanding + * idle-injection flush (quiescence — NOT just the `disposed` * status flip), unregisters the agent, removes its session from the store, and * finally unwinds its scoped world. This order captures every agent-started * `session/flush` before the session is detached and keeps scoped listeners * alive through those checkpoints. * - * `ctx.agents.get(id)` still returns a bare {@link Agent} — the handle is only - * for the OWNER that created it. Config-created agents (the loop's own startup) - * are owned by the loop fiber and never need a handle. + * `ctx.agents.get(id)` still returns a bare {@link Agent} — the handle is + * exposed only to the consumer owner that created it; the structural provider + * reaches the same teardown internally. Config-created agents (the loop's own + * startup) are owned by the loop fiber and never need a handle. */ export interface AgentHandle { agent: Agent @@ -146,20 +150,62 @@ export interface AgentFactory { * that began is paired by `agent/disposed` or `session/disposed` during * rollback. The owner disposes the resolved handle to stop/drain, * unregister, remove the session, and unwind the scope. + * The registry passes a context carrying the `create()` caller's fiber and + * scope as `ownerCtx`. The implementation attaches the unpublished + * transaction and resulting lifecycle to that owner; it must not infer + * ownership from the factory object's registration context. + * @param ownerCtx - caller-bound context that owns the transaction and live handle. * @param options - agent/session identity, configuration, and optional setup. * @returns the owned handle after setup, both announcements, and loop start complete. */ - createAgent(options: CreateAgentOptions): Promise + createAgent(ownerCtx: Context, options: CreateAgentOptions): Promise /** * Load a persisted session and resume an agent on it. Async because it awaits * both `ctx.sessionPersistence.load` and the optional unpublished setup * transaction; must be called after that service exists (consumers inject * `sessionPersistence`). Publication and drive unlocking follow the same * ordered boundary as {@link createAgent}. + * @param ownerCtx - caller-bound context that owns load, setup, and the live handle. * @param options - persisted identity, configuration, and optional setup. * @returns the owned handle after setup, both announcements, and loop start complete. */ - resume(options: ResumeAgentOptions): Promise + resume(ownerCtx: Context, options: ResumeAgentOptions): Promise +} + +/** One accepted factory target plus the callback identities captured at registration. */ +interface AcceptedAgentFactory { + target: AgentFactory + createAgent: AgentFactory['createAgent'] + resume: AgentFactory['resume'] +} + +/** Slot reservation while callback accessors are being captured. */ +const ACCEPTING_FACTORY = Symbol('accepting agent factory') + +/** Capture and validate the complete factory contract exactly once. */ +function acceptAgentFactory(factory: unknown): AcceptedAgentFactory { + if ((typeof factory !== 'object' && typeof factory !== 'function') || factory === null) { + throw new TypeError('agent factory must be a non-null object or function') + } + // A service read through ctx is already a Cordis trace proxy. Retaining that + // proxy and tracing it again for each create() caller produces two shadow + // layers; raw-identity state (AgentLoop's private ownership controller is + // one example) then unwraps only to the inner proxy instead of its service. + // Canonicalize the one framework-produced layer at acceptance and capture + // callbacks from the concrete target. Plain objects expose no original. + const original: unknown = Reflect.get(factory, symbols.original) + const target = ((typeof original === 'object' || typeof original === 'function') && original !== null) + ? original + : factory + const createAgent: unknown = Reflect.get(target, 'createAgent') + const resume: unknown = Reflect.get(target, 'resume') + if (typeof createAgent !== 'function') throw new TypeError('agent factory createAgent must be a function') + if (typeof resume !== 'function') throw new TypeError('agent factory resume must be a function') + return Object.freeze({ + target: target as AgentFactory, + createAgent: createAgent as AgentFactory['createAgent'], + resume: resume as AgentFactory['resume'], + }) } /** Thrown when create/resume is called before an agent factory is registered. */ @@ -187,6 +233,8 @@ export interface AgentRegistrationReservation { /** * Release the unpublished reservation; idempotent. The registry also * releases it automatically when the fiber that called `reserve` disposes. + * This function is that exact Cordis effect disposer, so an ordered + * lifecycle may yield it by identity and place release after quiescence. * @returns nothing. */ release(): void @@ -201,13 +249,21 @@ export interface AgentRegistrationReservation { */ export class AgentRegistry extends Service { private store = new Map() + /** Ids claimed across caller-code boundaries before their exact entry commits. */ + private enteringIds = new Set() /** The one accepted registry key for each live agent; never reread caller state. */ private acceptedIds = new WeakMap() /** Unpublished identities held across factory setup/load transactions. */ private reservations = new Map() /** Entries whose `agent/created` announcement phase began. */ private announced = new WeakSet() - private factory: AgentFactory | undefined + /** Entries currently dispatching `agent/created`; detach waits for that dispatch to unwind. */ + private announcing = new WeakSet() + /** A detach requested reentrantly from `agent/created`. */ + private pendingDetach = new WeakSet() + /** Stable lifecycle dispatch carrier captured before an entry commits. */ + private carriers = new WeakMap>() + private factory: AcceptedAgentFactory | typeof ACCEPTING_FACTORY | undefined constructor(ctx: Context) { super(ctx, 'agents') @@ -234,39 +290,27 @@ export class AgentRegistry extends Service { */ reserve(id: AgentId): AgentRegistrationReservation { if (typeof id !== 'string') throw new TypeError('agent id must be a string') - if (this.store.has(id) || this.reservations.has(id)) { + if (this.store.has(id) || this.reservations.has(id) || this.enteringIds.has(id)) { throw new Error(`agent "${id}" is already registered or reserved`) } - let active = true const rawRelease = (): void => { - if (!active) return - active = false this.reservations.delete(id) } - let disposeEffect!: () => Promise | void - const reservation: AgentRegistrationReservation = Object.freeze({ - id, - release: () => { - rawRelease() - // Remove the now-inert ownership effect on manual transaction settle; - // its cleanup is the exact idempotent raw release above. - void disposeEffect() - }, - }) + // `release` is the exact effect disposer. A composite lifecycle can yield + // it by identity, moving automatic owner cleanup from a racing sibling to + // the transaction's final ordered position. + const release = this.ctx.effect(() => rawRelease, `agents.reserve(${id})`) + const reservation: AgentRegistrationReservation = Object.freeze({ id, release }) this.reservations.set(id, reservation) - try { - disposeEffect = this.ctx.effect(() => rawRelease, `agents.reserve(${id})`) - } catch (error: unknown) { - rawRelease() - throw error - } return reservation } /** * Register the agent-creation factory (the loop calls this on construction, - * effect-scoped). Throws if a factory is already registered. Returns the - * disposer; on dispose the factory slot is cleared. + * effect-scoped). The registry captures both callback identities once and + * later invokes them against the retained target receiver. Throws if a + * factory is already registered. Returns the disposer; on dispose the + * factory slot is cleared. * @param factory - the loop-owned factory {@link create}/{@link resume} delegate to. * @returns the disposer that clears the factory slot. The exact * Cordis effect disposer (single-shot): composite (generator) effects may @@ -275,7 +319,17 @@ export class AgentRegistry extends Service { setFactory(factory: AgentFactory): () => Promise | void { const dispose = this.ctx.effect(() => { if (this.factory !== undefined) throw new Error('an agent factory is already registered') - this.factory = factory + // Claim the slot before reading caller-controlled method accessors. A + // getter may synchronously re-enter setFactory(); it must observe the + // registration in progress instead of installing a nested factory that + // the outer call would silently overwrite. + this.factory = ACCEPTING_FACTORY + try { + this.factory = acceptAgentFactory(factory) + } catch (error: unknown) { + this.factory = undefined + throw error + } return () => { this.factory = undefined } }, 'agents.setFactory()') // The exact cordis effect disposer (the agents.register() convention): a @@ -285,6 +339,13 @@ export class AgentRegistry extends Service { return dispose } + /** Return the accepted factory, excluding absence and reentrant acceptance. */ + private requireFactory(): AcceptedAgentFactory { + const accepted = this.factory + if (accepted === undefined || accepted === ACCEPTING_FACTORY) throw new Error(NO_FACTORY_MESSAGE) + return accepted + } + /** * Create and publish a new agent through the registered factory. * Distinct from {@link register} (which records an already-constructed @@ -295,8 +356,14 @@ export class AgentRegistry extends Service { * @returns the handle after setup, rollback-covered publication, and loop start complete. */ async create(options: CreateAgentOptions): Promise { - if (this.factory === undefined) throw new Error(NO_FACTORY_MESSAGE) - return this.factory.createAgent(options) + const accepted = this.requireFactory() + const ownerCtx = this.ctx + // Re-trace a Service-backed factory through the accessing context + // explicitly. This preserves AgentLoop's dependency origin while binding + // its effects to ownerCtx; plain factories receive ownerCtx as an explicit + // capability and need no Cordis tracker magic. + const receiver = getTraceable(ownerCtx, accepted.target) + return Reflect.apply(accepted.createAgent, receiver, [ownerCtx, options]) } /** @@ -307,8 +374,10 @@ export class AgentRegistry extends Service { * @returns the handle after setup, rollback-covered publication, and loop start complete. */ async resume(options: ResumeAgentOptions): Promise { - if (this.factory === undefined) throw new Error(NO_FACTORY_MESSAGE) - return this.factory.resume(options) + const accepted = this.requireFactory() + const ownerCtx = this.ctx + const receiver = getTraceable(ownerCtx, accepted.target) + return Reflect.apply(accepted.resume, receiver, [ownerCtx, options]) } /** @@ -347,7 +416,9 @@ export class AgentRegistry extends Service { * @param reservation - the exact unpublished-id capability, when a factory * reserved this id across setup. * @returns an idempotent closure that removes this exact entry and emits - * `agent/disposed` with listener failures contained. + * `agent/disposed` with listener failures contained. When called from a + * synchronous `agent/created` listener, removal and disposal wait until + * that creation dispatch unwinds. */ enter(agent: Agent, reservation?: AgentRegistrationReservation): () => void { const id = agent.id @@ -361,39 +432,108 @@ export class AgentRegistry extends Service { if (this.acceptedIds.has(agent)) { throw new Error(`agent "${id}" is already registered`) } - if (this.store.has(id)) { + if (this.store.has(id) || this.enteringIds.has(id)) { throw new Error(`agent "${id}" is already registered`) } + this.enteringIds.add(id) + let carrier: Scoped try { // Registration accepts ownership of the public identity contract. Pin an // own data slot from the one captured value so a custom JavaScript Agent // with a getter or writable field cannot later present a different id to // event listeners while the registry still owns the accepted key. - Object.defineProperty(agent, 'id', { - value: id, - enumerable: true, - writable: false, - configurable: false, - }) - } catch { - // Only the engine's property-definition failure is swallowed; the stable - // public error below is the registration contract exposed to callers. - throw new TypeError('agent id must be installable as a stable own property') + try { + Object.defineProperty(agent, 'id', { + value: id, + enumerable: true, + writable: false, + configurable: false, + }) + } catch { + // Only the engine's property-definition failure is normalized; filter + // construction below retains its own precise failure. + throw new TypeError('agent id must be installable as a stable own property') + } + // Capture one carrier for the paired lifecycle edges. Constructing it + // reads a custom Agent's Context.filter and is therefore caller code; + // the id claim above makes a same-id reentrant enter lose deterministically. + carrier = scopeTarget(agent, agent) + } finally { + // Kept through the entire caller-code window; the final commit below is + // synchronous and callback-free. + this.enteringIds.delete(id) + } + const currentReservation = this.reservations.get(id) + if (reservation === undefined) { + /* v8 ignore next 2 -- reserve() rejects enteringIds, so no callback in + * carrier construction can install a new same-id reservation */ + if (currentReservation !== undefined) { + throw new Error(`agent "${id}" is reserved for unpublished creation`) + } + } else if (currentReservation !== reservation) { + throw new Error(`agent "${id}" registration reservation is not active for this id`) + } + /* v8 ignore next 2 -- the enteringIds claim blocks every public same-id + * commit until this callback-free final check has completed */ + if (this.acceptedIds.has(agent) || this.store.has(id)) { + throw new Error(`agent "${id}" is already registered`) } this.store.set(id, agent) this.acceptedIds.set(agent, id) + this.carriers.set(agent, carrier) let entered = true - return () => { + const detach = (): void => { if (!entered) return entered = false - this.store.delete(id) - this.acceptedIds.delete(agent) - // An insertion rolled back before announce was never externally created, - // so emitting disposed would invent an impossible lifecycle edge. Marking - // happens before the created emit: if a later created listener throws, - // earlier listeners may already have observed it and must see disposal. - if (!this.announced.delete(agent)) return - agentEvents(this.ctx, agent).emit('agent/disposed') + // Every callback reached by this creation dispatch must observe the same + // live entry, and disposal must follow creation. A listener may own + // the advanced detach capability, so make that ordering structural: + // visibility and the paired disposal are deferred until announce()'s + // synchronous dispatch has unwound. + if (this.announcing.has(agent)) { + this.pendingDetach.add(agent) + return + } + this.detachEntered(agent, id) + } + return detach + } + + /** Remove one exact entered agent and emit its paired disposal when announced. */ + private detachEntered(agent: Agent, id: AgentId): void { + this.pendingDetach.delete(agent) + // A stale capability can never delete a later same-id lifecycle. The + // commit claim prevents this mismatch in normal operation; retain the + // exact-object guard as the final identity boundary. + /* v8 ignore next 1 -- the commit claim makes replacement impossible; this + * remains the exact-identity backstop against future mutation paths */ + if (this.store.get(id) !== agent || this.acceptedIds.get(agent) !== id) return + this.store.delete(id) + this.acceptedIds.delete(agent) + const carrier = this.carriers.get(agent) + this.carriers.delete(agent) + // An insertion rolled back before announce was never externally created, + // so emitting disposed would invent an impossible lifecycle edge. Marking + // happens before the created emit: if a later created listener throws, + // earlier listeners may already have observed it and must see disposal. + if (!this.announced.delete(agent)) return + /* v8 ignore next -- enter commits the carrier with the exact store entry */ + if (carrier === undefined) throw new Error(`agent "${id}" has no dispatch carrier`) + this.emitDisposed(agent, carrier, id) + } + + /** Emit the paired disposal edge through the entry's stable carrier. */ + private emitDisposed(agent: Agent, carrier: Scoped, id: AgentId): void { + const args: unknown[] = [carrier, 'agent/disposed', agent] + for (const callback of this.ctx.events.dispatch('emit', args)) { + try { + const returned: unknown = callback(...args) + void Promise.resolve(returned).catch((error: unknown) => { + this.ctx.logger.warn(`agent "${id}": agent/disposed listener rejected: ${renderThrown(error)}`) + }) + } catch (error: unknown) { + this.ctx.logger.warn(`agent "${id}": agent/disposed listener threw: ${renderThrown(error)}`) + } } } @@ -409,21 +549,30 @@ export class AgentRegistry extends Service { if (id === undefined || this.store.get(id) !== agent) { throw new Error(`agent "${id ?? ''}" is not live in this registry`) } - if (this.announced.has(agent)) { + if (this.announced.has(agent) || this.announcing.has(agent)) { throw new Error(`agent "${id}" was already announced`) } + const carrier = this.carriers.get(agent) + /* v8 ignore next -- enter commits the carrier with the exact store entry */ + if (carrier === undefined) throw new Error(`agent "${id}" has no dispatch carrier`) // Mark before dispatch so a listener cannot recursively create a second // lifecycle edge; detach still pairs a partially delivered first edge. + this.announcing.add(agent) this.announced.add(agent) - const args: unknown[] = [scopeTarget(agent, agent), 'agent/created', agent] - for (const callback of this.ctx.events.dispatch('emit', args)) { - // A synchronous creation failure vetoes publication and rolls back. - // Returned-promise rejection happens after this synchronous boundary, so - // observe and report it instead of leaking an unhandled rejection. - const returned: unknown = callback(...args) - void Promise.resolve(returned).catch((error: unknown) => { - this.ctx.logger.warn(`agent "${id}": agent/created listener rejected: ${renderThrown(error)}`) - }) + const args: unknown[] = [carrier, 'agent/created', agent] + try { + for (const callback of this.ctx.events.dispatch('emit', args)) { + // A synchronous creation failure vetoes publication and rolls back. + // Returned-promise rejection happens after this synchronous boundary, so + // observe and report it instead of leaking an unhandled rejection. + const returned: unknown = callback(...args) + void Promise.resolve(returned).catch((error: unknown) => { + this.ctx.logger.warn(`agent "${id}": agent/created listener rejected: ${renderThrown(error)}`) + }) + } + } finally { + this.announcing.delete(agent) + if (this.pendingDetach.has(agent)) this.detachEntered(agent, id) } } diff --git a/packages/core/agent/src/types.ts b/packages/core/agent/src/types.ts index b6a32fa050..0e914888b9 100644 --- a/packages/core/agent/src/types.ts +++ b/packages/core/agent/src/types.ts @@ -291,7 +291,11 @@ declare module 'cordis' { * to inject or queue work during startup. A synchronous listener throw * vetoes publication and rollback emits the matching disposal edges; * returned-promise rejection is observed and logged but cannot - * retroactively veto this synchronous boundary. + * retroactively veto this synchronous boundary. A synchronous listener + * that requests the advanced registry detach does not remove the entry + * immediately: removal and the paired `agent/disposed` edge wait until the + * creation dispatch unwinds, so no later creation listener observes a + * disposal that preceded its own creation callback. * @param agent - the newly registered agent with its live session and completed setup. * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered * through `agent.ctx` fires only for that agent's dispatches; a listener on a @@ -302,11 +306,12 @@ declare module 'cordis' { */ 'agent/created'(this: Scoped, agent: Agent): void /** - * An agent was removed from the registry after its driver and any in-flight - * turn reached quiescence. Ordered teardown may still be detaching the - * session and unwinding the agent's scoped registrations when this - * notification runs. - * @param agent - the deregistered agent; its driving handle is now inert. + * An agent was removed from the registry. The concrete AgentLoop lifecycle + * emits this only after its driver and any in-flight turn reach quiescence; + * a custom agent registered through the public registry owns its own driver + * contract, which the registry cannot infer. Ordered teardown may still be + * detaching the session and unwinding scoped registrations when this runs. + * @param agent - the exact agent removed from the registry. * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered * through `agent.ctx` fires only for that agent's dispatches; a listener on a * plain plugin context fires for every agent. The dispatch `this` is the @@ -348,11 +353,12 @@ declare module 'cordis' { /** * The agent's session lifecycle began, fired once before its first turn. * `source` says why ({@link SessionStartSource}: fresh startup, a resumed - * persisted session, …). A pure NOTIFICATION (emit, not waterfall): it - * carries no veto — a session-start listener that wants to seed context does - * so via `agent.inject()` (a `context/message` the first request sees), not - * by returning a decision. Cannot block the session from starting; that gap - * is deliberate (a bridge logs/injects, it does not gate startup). + * persisted session, …). A pure NOTIFICATION (emit, not waterfall): a + * listener cannot veto by returning a decision or throwing. A listener that + * wants to seed context does so via `agent.inject()` (a `context/message` the + * first request sees). A lifecycle owner can still dispose its structural + * ownership edge during this notification; publication rechecks liveness and + * then aborts before the driver starts. * @param agent - the agent whose session lifecycle began. * @param source - why the session started (fresh startup, resume, …). * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered diff --git a/packages/core/agent/tests/agent.spec.ts b/packages/core/agent/tests/agent.spec.ts index 87a0e51e9d..ab3202a297 100644 --- a/packages/core/agent/tests/agent.spec.ts +++ b/packages/core/agent/tests/agent.spec.ts @@ -1,7 +1,8 @@ import { describe, expect, it } from 'vitest' -import { Context } from 'cordis' +import { Context, Service, symbols } from 'cordis' import { Session, SessionId } from '@deepseek-ai/dsh-session' import AgentRegistry, { Agent, AgentId, agentEvents } from '@deepseek-ai/dsh-agent' +import type { AgentFactory, CreateAgentOptions, ResumeAgentOptions } from '@deepseek-ai/dsh-agent' function stubAgent(rawId: string): Agent { const id = AgentId(rawId) @@ -178,6 +179,96 @@ describe('AgentRegistry', () => { expect(() => ctx.agents.enter(pinnedAccessor)).toThrow(/installable as a stable own property/) }) + it('claims an id across a Proxy defineProperty trap before committing the exact entry', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + const id = AgentId('reentrant-enter') + const nested = stubAgent(id) + let nestedError = '' + let attempted = false + const target = stubAgent(id) + const outer = new Proxy(target, { + defineProperty(inner, property, descriptor) { + if (property === 'id' && !attempted) { + attempted = true + try { + ctx.agents.enter(nested) + } catch (error: unknown) { + nestedError = String(error) + } + } + return Reflect.defineProperty(inner, property, descriptor) + }, + }) + + const detach = ctx.agents.enter(outer) + expect(nestedError).toMatch(/already registered/) + expect(ctx.agents.get(id)).toBe(outer) + detach() + expect(ctx.agents.get(id)).toBeUndefined() + }) + + it('captures one lifecycle carrier before commit so a filter getter cannot invert edges', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + const events: string[] = [] + const agent = stubAgent('reentrant-carrier') + let detach = (): void => {} + Object.defineProperty(agent, Context.filter, { + configurable: true, + get() { + events.push('filter-getter') + detach() + return undefined + }, + }) + detach = ctx.agents.enter(agent) + ctx.on('agent/created', () => { events.push('created') }) + ctx.on('agent/disposed', () => { events.push('disposed') }) + + ctx.agents.announce(agent) + expect(events).toEqual(['filter-getter', 'created']) + expect(ctx.agents.get(agent.id)).toBe(agent) + detach() + expect(events).toEqual(['filter-getter', 'created', 'disposed']) + expect(ctx.agents.get(agent.id)).toBeUndefined() + }) + + it('revalidates an exact reservation after carrier construction runs caller code', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + const reservation = ctx.agents.reserve(AgentId('released-during-enter')) + const agent = stubAgent('released-during-enter') + Object.defineProperty(agent, Context.filter, { + configurable: true, + get() { + reservation.release() + return undefined + }, + }) + + expect(() => ctx.agents.enter(agent, reservation)).toThrow(/reservation is not active/) + expect(ctx.agents.get(agent.id)).toBeUndefined() + }) + + it('observes an async agent/disposed rejection through the stable carrier', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + ctx.on('agent/disposed', () => Promise.reject(new Error('late disposal failure')) as never) + const agent = stubAgent('async-disposed') + const detach = ctx.agents.enter(agent) + ctx.agents.announce(agent) + + detach() + await Promise.resolve() + await Promise.resolve() + expect(warnings).toEqual([ + 'agent "async-disposed": agent/disposed listener rejected: Error: late disposal failure', + ]) + }) + it('uses an opaque one-id reservation to gate unpublished factory insertion', async () => { const ctx = new Context() await ctx.plugin(AgentRegistry) @@ -251,6 +342,34 @@ describe('AgentRegistry', () => { detach() expect({ created, disposed }).toEqual({ created: 1, disposed: 1 }) }) + + it('defers a reentrant detach until the creation dispatch unwinds', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + const order: string[] = [] + const agent = stubAgent('reentrant-detach') + const detach = ctx.agents.enter(agent) + + ctx.on('agent/created', (created) => { + order.push('created:first') + detach() + expect(ctx.agents.get(created.id)).toBe(created) + }) + ctx.on('agent/created', (created) => { + order.push('created:second') + expect(ctx.agents.get(created.id)).toBe(created) + }) + ctx.on('agent/disposed', (disposed) => { + order.push('disposed') + expect(ctx.agents.get(disposed.id)).toBeUndefined() + }) + + ctx.agents.announce(agent) + + expect(order).toEqual(['created:first', 'created:second', 'disposed']) + expect(ctx.agents.get(agent.id)).toBeUndefined() + detach() + }) }) describe('agentEvents()', () => { @@ -281,14 +400,17 @@ describe('agentEvents()', () => { describe('AgentRegistry factory seam', () => { /** A stub AgentFactory that records calls and returns a stub agent. */ function stubFactory() { - const calls: { create: unknown[]; resume: unknown[] } = { create: [], resume: [] } - const factory: import('@deepseek-ai/dsh-agent').AgentFactory = { - async createAgent(options) { - calls.create.push(options) + const calls: { + create: Array<{ ownerCtx: Context; options: CreateAgentOptions }> + resume: Array<{ ownerCtx: Context; options: ResumeAgentOptions }> + } = { create: [], resume: [] } + const factory: AgentFactory = { + async createAgent(ownerCtx, options) { + calls.create.push({ ownerCtx, options }) return { agent: stubAgent(options.agentId), dispose: () => Promise.resolve() } }, - resume(options) { - calls.resume.push(options) + resume(ownerCtx, options) { + calls.resume.push({ ownerCtx, options }) return Promise.resolve({ agent: stubAgent(options.agentId), dispose: () => Promise.resolve() }) }, } @@ -310,11 +432,151 @@ describe('AgentRegistry factory seam', () => { const created = await ctx.agents.create({ agentId: AgentId('c1'), sessionId: SessionId('sess-1'), meta: { cwd: '/w' } }) expect(created.agent.id).toBe('c1') - expect(calls.create).toEqual([{ agentId: AgentId('c1'), sessionId: SessionId('sess-1'), meta: { cwd: '/w' } }]) + expect(calls.create).toHaveLength(1) + expect(calls.create[0]!.ownerCtx.fiber).toBe(ctx.fiber) + expect(calls.create[0]!.options) + .toEqual({ agentId: AgentId('c1'), sessionId: SessionId('sess-1'), meta: { cwd: '/w' } }) const resumed = await ctx.agents.resume({ agentId: AgentId('r1'), resumeSessionId: SessionId('old-sess') }) expect(resumed.agent.id).toBe('r1') - expect(calls.resume).toEqual([{ agentId: AgentId('r1'), resumeSessionId: SessionId('old-sess') }]) + expect(calls.resume).toHaveLength(1) + expect(calls.resume[0]!.ownerCtx.fiber).toBe(ctx.fiber) + expect(calls.resume[0]!.options).toEqual({ agentId: AgentId('r1'), resumeSessionId: SessionId('old-sess') }) + }) + + it('passes the calling fiber to a plain factory for create and resume ownership', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + const { factory, calls } = stubFactory() + ctx.agents.setFactory(factory) + let callerFiber: Context['fiber'] | undefined + + const owner = await ctx.plugin(Object.assign(async (inner: Context) => { + callerFiber = inner.fiber + await inner.agents.create({ agentId: AgentId('owned-create'), sessionId: SessionId('owned-session') }) + await inner.agents.resume({ agentId: AgentId('owned-resume'), resumeSessionId: SessionId('persisted') }) + }, { inject: ['agents'] })) + + expect(calls.create[0]!.ownerCtx.fiber).toBe(callerFiber) + expect(calls.resume[0]!.ownerCtx.fiber).toBe(callerFiber) + await owner.dispose() + }) + + it('captures factory callbacks once while retaining the intentional target receiver', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + const reads = { create: 0, resume: 0 } + const receivers: unknown[] = [] + const replacements: string[] = [] + const target = { label: 'accepted-target' } as { label: string } & AgentFactory + + Object.defineProperties(target, { + createAgent: { + configurable: true, + get() { + reads.create += 1 + return function (this: typeof target, _ownerCtx: Context, options: CreateAgentOptions) { + receivers.push(this) + return Promise.resolve({ agent: stubAgent(options.agentId), dispose: () => Promise.resolve() }) + } + }, + }, + resume: { + configurable: true, + get() { + reads.resume += 1 + return function (this: typeof target, _ownerCtx: Context, options: ResumeAgentOptions) { + receivers.push(this) + return Promise.resolve({ agent: stubAgent(options.agentId), dispose: () => Promise.resolve() }) + } + }, + }, + }) + + ctx.agents.setFactory(target) + Object.defineProperties(target, { + createAgent: { + value: () => { + replacements.push('create') + return Promise.resolve({ agent: stubAgent('replacement'), dispose: () => Promise.resolve() }) + }, + }, + resume: { + value: () => { + replacements.push('resume') + return Promise.resolve({ agent: stubAgent('replacement'), dispose: () => Promise.resolve() }) + }, + }, + }) + + await ctx.agents.create({ agentId: AgentId('captured-create'), sessionId: SessionId('captured-session') }) + await ctx.agents.resume({ agentId: AgentId('captured-resume'), resumeSessionId: SessionId('captured-persisted') }) + + expect(reads).toEqual({ create: 1, resume: 1 }) + expect(receivers).toEqual([target, target]) + expect(replacements).toEqual([]) + }) + + it('reserves the factory slot before reading reentrant callback accessors', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + const nested = stubFactory().factory + const reads: string[] = [] + const reentrantCreate: Promise[] = [] + const target = {} as AgentFactory + + Object.defineProperties(target, { + createAgent: { + get() { + reads.push('createAgent') + expect(() => ctx.agents.setFactory(nested)).toThrow(/already registered/) + reentrantCreate.push(ctx.agents.create({ + agentId: AgentId('during-acceptance'), + sessionId: SessionId('during-acceptance-session'), + })) + return (_ownerCtx: Context, options: CreateAgentOptions) => Promise.resolve({ + agent: stubAgent(options.agentId), + dispose: () => Promise.resolve(), + }) + }, + }, + resume: { + get() { + reads.push('resume') + return (_ownerCtx: Context, options: ResumeAgentOptions) => Promise.resolve({ + agent: stubAgent(options.agentId), + dispose: () => Promise.resolve(), + }) + }, + }, + }) + + ctx.agents.setFactory(target) + expect(reentrantCreate).toHaveLength(1) + await expect(Promise.all(reentrantCreate)).rejects.toThrow(/no agent factory/) + await expect(ctx.agents.create({ + agentId: AgentId('after-acceptance'), + sessionId: SessionId('after-acceptance-session'), + })).resolves.toMatchObject({ agent: { id: 'after-acceptance' } }) + expect(reads).toEqual(['createAgent', 'resume']) + }) + + it('validates the complete factory shape when accepting it', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + + expect(() => ctx.agents.setFactory(null as unknown as AgentFactory)).toThrow(/non-null object or function/) + expect(() => ctx.agents.setFactory(42 as unknown as AgentFactory)).toThrow(/non-null object or function/) + expect(() => ctx.agents.setFactory({ resume() { return Promise.resolve() } } as unknown as AgentFactory)) + .toThrow(/createAgent must be a function/) + expect(() => ctx.agents.setFactory({ createAgent() { return Promise.resolve() } } as unknown as AgentFactory)) + .toThrow(/resume must be a function/) + + const callable = Object.assign(() => undefined, stubFactory().factory) + const dispose = ctx.agents.setFactory(callable) + await expect(ctx.agents.create({ agentId: AgentId('callable'), sessionId: SessionId('callable-session') })) + .resolves.toBeDefined() + await dispose() }) it('setFactory rejects a second factory', async () => { @@ -337,4 +599,81 @@ describe('AgentRegistry factory seam', () => { // factory slot cleared → create throws again await expect(ctx.agents.create({ agentId: AgentId('a2'), sessionId: SessionId('s2') })).rejects.toThrow(/no agent factory/) }) + + it('canonicalizes an already traced Service factory before caller retracing', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + const states = new WeakMap() + class TracedFactory extends Service implements AgentFactory { + constructor(inner: Context) { + super(inner, 'tracedFactory') + states.set(this, []) + } + + private calls(): string[] { + const original = (this as unknown as { [symbols.original]?: TracedFactory })[symbols.original] ?? this + const calls = states.get(original) + if (calls === undefined) throw new Error('factory receiver did not canonicalize to the raw service') + return calls + } + + createAgent(_ownerCtx: Context, options: CreateAgentOptions) { + this.calls().push('create') + return Promise.resolve({ agent: stubAgent(options.agentId), dispose: () => Promise.resolve() }) + } + + resume(_ownerCtx: Context, options: ResumeAgentOptions) { + this.calls().push('resume') + return Promise.resolve({ agent: stubAgent(options.agentId), dispose: () => Promise.resolve() }) + } + } + await ctx.plugin(TracedFactory) + const traced = (ctx as Context & { tracedFactory: TracedFactory }).tracedFactory + ctx.agents.setFactory(traced) + + await ctx.agents.create({ agentId: AgentId('traced-create'), sessionId: SessionId('traced-session') }) + await ctx.agents.resume({ agentId: AgentId('traced-resume'), resumeSessionId: SessionId('traced-persisted') }) + const raw = (traced as unknown as { [symbols.original]?: TracedFactory })[symbols.original] + expect(states.get(raw!)).toEqual(['create', 'resume']) + }) + + it('rolls back register and factory acceptance when their owner unloads reentrantly', async () => { + const ctx = new Context() + await ctx.plugin(AgentRegistry) + let ownerCtx!: Context + const owner = await ctx.plugin(Object.assign((inner: Context) => { ownerCtx = inner }, { inject: ['agents'] })) + const agent = stubAgent('register-unload-race') + ctx.on('agent/created', (created) => { + if (created === agent) void owner.dispose() + }) + + ownerCtx.agents.register(agent) + await owner.dispose() + expect(ctx.agents.get(agent.id)).toBeUndefined() + + let factoryOwnerCtx!: Context + const factoryOwner = await ctx.plugin(Object.assign((inner: Context) => { factoryOwnerCtx = inner }, { inject: ['agents'] })) + const target = {} as AgentFactory + Object.defineProperties(target, { + createAgent: { + get() { + void factoryOwner.dispose() + return (_inner: Context, options: CreateAgentOptions) => Promise.resolve({ + agent: stubAgent(options.agentId), + dispose: () => Promise.resolve(), + }) + }, + }, + resume: { + value: (_inner: Context, options: ResumeAgentOptions) => Promise.resolve({ + agent: stubAgent(options.agentId), + dispose: () => Promise.resolve(), + }), + }, + }) + factoryOwnerCtx.agents.setFactory(target) + await factoryOwner.dispose() + await expect(ctx.agents.create({ agentId: AgentId('after-owner'), sessionId: SessionId('after-owner-s') })) + .rejects.toThrow(/no agent factory/) + }) }) diff --git a/packages/core/scope/README.md b/packages/core/scope/README.md index 727acea4fb..1813ff5071 100644 --- a/packages/core/scope/README.md +++ b/packages/core/scope/README.md @@ -9,7 +9,7 @@ Scoped-context registration primitive. `createScope(ctx, key)` mints a Cordis co - `Scope.rawDispose` The EXACT Cordis disposer for the backing fiber — a composite (generator) effect yields THIS function to nest the scope's teardown at that yield position (Cordis dedupes nested effects by function identity; yielding a wrapper leaves the scope disposing as a concurrent sibling). - `Scope.dispose(): Promise` Idempotent, shared quiescence boundary for every registration made through the scope. Racing/repeat calls await the same teardown, including when `rawDispose` invoked the underlying single-shot Cordis disposer first. - `scopeOf(ctx: Context): ScopeKey | undefined` The tag a context (or any context derived from it) carries; `undefined` = context-global. -- `scopeTarget(base: T, key: ScopeKey | undefined): Scoped` Build the dispatch `thisArg` for a scope-filtered event: capture and compose `base`'s own `Context.filter` with the scope predicate (untagged listener ⇒ admitted; tagged ⇒ admitted iff tag === key; `key === undefined` ⇒ untagged only). The carrier uses a dedicated surrogate proxy target whose immutable filter slot cannot be replaced by a base property pinned before, during, or after construction; ordinary property access, writes, own-key visibility, methods, invocation, and construction delegate to `base`, and callable carriers match the base's constructable/non-constructable shape. For non-overlay base-owned properties, descriptor queries preserve values and flags except that configurable is normalized to `true`, as required to report those properties through an extensible surrogate. Listener `this` stays `base`-shaped. `{ global: true }` listeners bypass filtering (Cordis semantics). +- `scopeTarget(base: T, key: ScopeKey | undefined): Scoped` Build the dispatch `thisArg` for a scope-filtered event: capture and compose `base`'s own `Context.filter` with the scope predicate (untagged listener ⇒ admitted; tagged ⇒ admitted iff tag === key; `key === undefined` ⇒ untagged only). The captured base filter and the exposed composed filter are invoked through captured JavaScript primordials, and the composed filter's frozen invocation surface cannot be replaced or tampered with. The carrier uses a dedicated surrogate proxy target; ordinary property access, writes, own-key visibility, methods, invocation, and construction delegate to `base`, and callable carriers match the base's constructable/non-constructable shape. For non-overlay base-owned properties, descriptor queries preserve values and flags except that configurable is normalized to `true`, as required to report those properties through an extensible surrogate; defining through the carrier is therefore supported only with an explicit `configurable: true` descriptor, while an omitted or false flag is rejected before the base is touched. Listener `this` stays `base`-shaped. `{ global: true }` listeners bypass filtering (Cordis semantics). - `Scoped` The compile-time carrier brand: scope-filtered events demand it as their `this` type, so dispatching with a bare subject is a compile error. - `isScopeCarrier(value)` / `carrierKeyOf(value)` Runtime carrier marks, used by the dev invariants to assert every scope-filtered dispatch carries a carrier keyed to the subject its arguments name. - `scopeHost(ctx, services)` Test/tooling host that snapshots the requested service list before activation, fails loud with stable missing-service diagnostics, and whose shared `dispose()` waits for both the host fiber and every minted scope, including a child already tearing down through `rawDispose`. diff --git a/packages/core/scope/src/index.ts b/packages/core/scope/src/index.ts index 9c917fc89d..158d6d37d8 100644 --- a/packages/core/scope/src/index.ts +++ b/packages/core/scope/src/index.ts @@ -25,6 +25,14 @@ import type { Context, Fiber } from 'cordis' import { Context as CordisContext } from 'cordis' +// Capture the invocation primordials once. A carrier holder can reach the +// composed Context.filter function, so neither that function's mutable +// property surface nor a base filter's own `.call` may choose how isolation +// predicates are invoked. +const reflectApply = Reflect.apply +// eslint-disable-next-line @typescript-eslint/unbound-method +const functionCall = Function.prototype.call + /** * The identity a scope is keyed by. Opaque and compared by object identity — * never inspected. The harness convention: a live `Agent` is the key of its @@ -194,8 +202,11 @@ function isConstructable(value: (...args: unknown[]) => unknown): boolean { * - its tag IS `key` (a scoped listener seeing exactly its own subject), * * AND `base`'s own filter (a Cordis `Service`'s isolation check) also admits - * it. Dispatching with `key === undefined` — a subject-less dispatch, e.g. a - * tool call with no calling agent or a bare (agent-less) session's events — + * it. Both the captured base filter and the composed filter are invoked + * through captured JavaScript primordials, so mutating either function's + * public `.call` property cannot bypass either predicate. Dispatching with + * `key === undefined` — a subject-less dispatch, e.g. a tool call with no + * calling agent or a bare (agent-less) session's events — * admits only untagged listeners: a scoped listener never fires for someone * else's (or nobody's) subject. Listeners registered `{ global: true }` * bypass all filtering (Cordis semantics). @@ -211,7 +222,11 @@ function isConstructable(value: (...args: unknown[]) => unknown): boolean { * subject always travels in the event's arguments. The returned carrier is * branded {@link Scoped} and runtime-marked ({@link isScopeCarrier} / * {@link carrierKeyOf}) so both the type system and the dev invariants can - * tell a carrier from a bare subject. + * tell a carrier from a bare subject. Defining an ordinary property through + * the carrier is supported only when its descriptor explicitly says + * `configurable: true`; an omitted or false flag is rejected before touching + * `base`, because the extensible surrogate cannot truthfully report a new + * non-configurable base property. * @param base - the object the event is dispatched on behalf of (the owning * service, or the subject agent itself); its own `Context.filter` is * preserved and composed. @@ -225,10 +240,19 @@ export function scopeTarget(base: T, key: ScopeKey | undefined throw new TypeError('scope target Context.filter must be a function when present') } const filter = (ctx: Context): boolean => { - if (baseFilter && !baseFilter.call(base, ctx)) return false + if (baseFilter && !reflectApply(functionCall, baseFilter, [base, ctx])) return false const tag = scopeOf(ctx) return tag === undefined || tag === key } + // Cordis invokes a dispatch filter as `filter.call(thisArg, listenerCtx)`. + // Pin that property to the captured primordial, then freeze the callable so + // a carrier holder cannot replace it with an always-true scope bypass. + Object.defineProperty(filter, 'call', { + value: functionCall, + writable: false, + configurable: false, + }) + Object.freeze(filter) const overlay: Record = { [CordisContext.filter]: filter, [kCarrier]: Object.freeze({ key }), @@ -317,7 +341,7 @@ export function scopeTarget(base: T, key: ScopeKey | undefined return undefined }, defineProperty(_target, prop, attributes) { - if (Object.hasOwn(overlay, prop)) return false + if (Object.hasOwn(overlay, prop) || attributes.configurable !== true) return false return Reflect.defineProperty(base, prop, attributes) }, deleteProperty(_target, prop) { diff --git a/packages/core/scope/tests/scope.spec.ts b/packages/core/scope/tests/scope.spec.ts index 5b379d15e5..7242aa942d 100644 --- a/packages/core/scope/tests/scope.spec.ts +++ b/packages/core/scope/tests/scope.spec.ts @@ -189,10 +189,54 @@ describe('scopeTarget dispatch filtering', () => { ctx.emit(scopeTarget(vetoBase, keyA), 'scope-test/ping', 'vetoed') expect(heard).toEqual([]) - // A base whose filter accepts delegates to the scope predicate. - const openBase = { [Context.filter]: () => true } + // A base whose filter accepts delegates to the scope predicate, with the + // real base preserved as its `this` receiver. + let baseReceiverWasOpen = false + const openBase = { + [Context.filter](this: object): boolean { + baseReceiverWasOpen = this === openBase + return true + }, + } ctx.emit(scopeTarget(openBase, keyA), 'scope-test/ping', 'open') expect(heard).toEqual(['global:open', 'A:open']) + expect(baseReceiverWasOpen).toBe(true) + + // A function's public `.call` property is not its invocation semantics. + // An always-true replacement must not override the base predicate's veto. + const tamperedVeto = (): boolean => false + Object.defineProperty(tamperedVeto, 'call', { value: () => true }) + ctx.emit(scopeTarget({ [Context.filter]: tamperedVeto }, keyA), 'scope-test/ping', 'tampered-veto') + expect(heard).toEqual(['global:open', 'A:open']) + }) + + it('pins the exposed composed filter invocation so a carrier holder cannot bypass isolation', async () => { + const ctx = new Context() + const keyA = { name: 'A' } + const keyB = { name: 'B' } + const scopeA = await mintScope(ctx, keyA) + const scopeB = await mintScope(ctx, keyB) + const heard: string[] = [] + ctx.on('scope-test/ping', value => void heard.push(`global:${value}`)) + scopeA.ctx.on('scope-test/ping', value => void heard.push(`A:${value}`)) + scopeB.ctx.on('scope-test/ping', value => void heard.push(`B:${value}`)) + + const carrier = scopeTarget(ctx, keyA) + const exposedFilter: unknown = Reflect.get(carrier, Context.filter) + expect(typeof exposedFilter).toBe('function') + const filter = exposedFilter as ((ctx: Context) => boolean) & { call: (...args: unknown[]) => unknown } + const primordialCall: unknown = Reflect.get(Function.prototype, 'call') + expect(Object.getOwnPropertyDescriptor(filter, 'call')).toMatchObject({ + value: primordialCall, + writable: false, + configurable: false, + }) + expect(Object.isFrozen(filter)).toBe(true) + expect(Reflect.set(filter, 'call', () => true)).toBe(false) + expect(Reflect.defineProperty(filter, 'call', { value: () => true })).toBe(false) + + ctx.emit(carrier, 'scope-test/ping', 'still-A-only') + expect(heard).toEqual(['global:still-A-only', 'A:still-A-only']) }) it('keeps listener `this` base-shaped through the carrier (waterfall)', async () => { @@ -256,6 +300,14 @@ describe('scopeTarget dispatch filtering', () => { Object.defineProperty(carrier, 'extra', { value: 1, configurable: true }) expect((base as typeof base & { extra?: number }).extra).toBe(1) expect(delete (carrier as typeof carrier & { extra?: number }).extra).toBe(true) + + // A non-configurable property cannot be reflected truthfully through the + // extensible surrogate. Reject before mutating the delegated base; an + // omitted `configurable` has JavaScript's false default and is rejected too. + expect(Reflect.defineProperty(carrier, 'sealed', { value: 1, configurable: false })).toBe(false) + expect(Object.hasOwn(base, 'sealed')).toBe(false) + expect(Reflect.defineProperty(carrier, 'default-sealed', { value: 2 })).toBe(false) + expect(Object.hasOwn(base, 'default-sealed')).toBe(false) expect(Reflect.preventExtensions(carrier)).toBe(false) expect(Reflect.setPrototypeOf(carrier, null)).toBe(false) }) diff --git a/packages/core/session/README.md b/packages/core/session/README.md index 29f89e35c8..7389d6fade 100644 --- a/packages/core/session/README.md +++ b/packages/core/session/README.md @@ -19,9 +19,9 @@ Creates and holds event-sourced `Session` instances. Persistence is intentionall `create()` covers the common case (the session is owned by the calling fiber). When a session must be torn down **in order with another resource** — so a final flush is captured before the store-owned append observer detaches — `create()`'s self-contained effect is wrong, because a fiber unload disposes sibling effects *concurrently*. For that, split the lifecycle and fold it into the owner's single effect: - `ctx.sessions.prepare(id?, options?): Session` — read `options.seed`/`options.meta` once, validate and detach the metadata/header, and construct the `Session` WITHOUT entering it into the store. Same options as `create`. -- `ctx.sessions.reserve(id): SessionRegistrationReservation` — hold an unpublished id under the calling fiber and construct its one owned Session through `reservation.prepare(options?)`. Until `release()` or owner unload, bare `prepare`/`create`/`enter` calls for that id reject; the factory later presents the exact capability to `enter`, making setup-time publication structurally impossible without leaking an abandoned reservation across HMR disposal. -- `ctx.sessions.enter(session, reservation?): () => void` — install the module-private `session/event` observer, capture its scope carrier, and add the session under one accepted id; returns the idempotent DETACH disposer, which clears notification, carrier, and accepted-key state. Does NOT emit `session/created` (the caller installs the disposer first, then calls `announce`, so a throwing listener rolls the attach back). It re-checks the id because public `prepare`/`enter` calls may be interleaved; a stale prepared object must not overwrite a live same-id session. A factory passes the opaque capability from `reserve(id)` so setup cannot enter the reserved session or publish a same-id replacement before the owning transaction. -- `ctx.sessions.announce(session): void` — begin the one allowed `session/created` announcement for an entered session; repeat and reentrant calls reject before dispatch. Its detach emits `session/disposed` exactly once, including rollback after a partially delivered creation notification; a never-announced entry emits neither edge. +- `ctx.sessions.reserve(id): SessionRegistrationReservation` — hold an unpublished id under the calling fiber and construct its one owned Session through `reservation.prepare(options?)`. `release` is the exact owner effect disposer, so the agent lifecycle can adopt it and keep the ID reserved until scope cleanup quiesces. Until that release, bare `prepare`/`create`/`enter` calls for the id reject; the factory later presents the exact capability to `enter`, making setup-time publication structurally impossible without leaking an abandoned reservation across HMR disposal. +- `ctx.sessions.enter(session, reservation?): () => void` — claim the ID across caller-controlled filter/carrier evaluation, then install the module-private `session/event` observer and add the exact session under its accepted key; a reentrant same-ID entry cannot be overwritten. Returns the idempotent, exact-object-guarded DETACH disposer, which clears notification, carrier, and accepted-key state without letting a stale capability delete a replacement. Does NOT emit `session/created` (the caller installs the disposer first, then calls `announce`, so a throwing listener rolls the attach back). It re-checks the id because public `prepare`/`enter` calls may be interleaved. A factory passes the opaque capability from `reserve(id)` so setup cannot enter the reserved session or publish a same-id replacement before the owning transaction. +- `ctx.sessions.announce(session): void` — begin the one allowed `session/created` announcement for an entered session; repeat and reentrant calls reject before dispatch. A detach requested synchronously by a creation listener is deferred until that dispatch unwinds, so another creation listener cannot observe `session/disposed` before its own `session/created` callback. Detach emits `session/disposed` exactly once, including rollback after a partially delivered creation notification; a never-announced entry emits neither edge. `dsh-agent-loop` is the canonical consumer: after unpublished agent setup it enters both session and agent before announcing either, then nests loop stop, agent removal, session detach, and scope unwind in one ordered lifecycle. The final flush therefore settles before this package detaches the session, whether teardown starts from an `AgentHandle` or owner-fiber unload. diff --git a/packages/core/session/src/index.ts b/packages/core/session/src/index.ts index b000e7083b..d8b3afb139 100644 --- a/packages/core/session/src/index.ts +++ b/packages/core/session/src/index.ts @@ -37,7 +37,9 @@ declare module 'cordis' { * A session was created in the store. A synchronous listener throw vetoes * publication and rollback emits the matching `session/disposed` edge; * returned-promise rejection is observed and logged but cannot retroactively - * veto this synchronous boundary. + * veto this synchronous boundary. A synchronous listener that requests the + * advanced detach does not remove the entry immediately: removal and the + * paired `session/disposed` edge wait until the creation dispatch unwinds. * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the * session's owner scope, captured when the session was ENTERED (an agent's * session is entered through `agent.ctx`, so its events dispatch in that @@ -648,7 +650,9 @@ export interface SessionRegistrationReservation { prepare(options?: CreateSessionOptions): Session /** * Release the unpublished reservation; idempotent. The store also releases - * it automatically when the fiber that called `reserve` disposes. + * it automatically when the fiber that called `reserve` disposes. This + * function is that exact Cordis effect disposer, so an ordered lifecycle may + * yield it by identity and place release after quiescence. * @returns nothing. */ release(): void @@ -662,10 +666,16 @@ export interface SessionRegistrationReservation { */ export class SessionStore extends Service { private store = new Map() + /** Ids claimed across caller-code boundaries before their exact entry commits. */ + private enteringIds = new Set() /** The one accepted map key for each live session; never reread caller state. */ private acceptedIds = new WeakMap() /** Sessions whose creation announcement began and therefore require a pair. */ private announced = new WeakSet() + /** Entries currently dispatching `session/created`; detach waits for dispatch to unwind. */ + private announcing = new WeakSet() + /** A detach requested reentrantly from `session/created`. */ + private pendingDetach = new WeakSet() /** Unpublished identities held across factory load/setup transactions. */ private reservations = new Map() /** The exact prepared object owned by each reservation capability. */ @@ -696,18 +706,19 @@ export class SessionStore extends Service { */ reserve(id: SessionId): SessionRegistrationReservation { if (typeof id !== 'string') throw new TypeError('session id must be a string') - if (this.store.has(id) || this.reservations.has(id)) { + if (this.store.has(id) || this.reservations.has(id) || this.enteringIds.has(id)) { throw new Error(`session "${id}" already exists or is reserved`) } let active = true let prepared = false const rawRelease = (): void => { - if (!active) return active = false this.reservedSessions.delete(reservation) this.reservations.delete(id) } - let disposeEffect!: () => Promise | void + // `release` is the exact effect disposer, so an ordered composite can + // adopt the automatic owner cleanup instead of racing it as a sibling. + const release = this.ctx.effect(() => rawRelease, `sessions.reserve(${id})`) const reservation: SessionRegistrationReservation = Object.freeze({ id, prepare: (options?: CreateSessionOptions) => { @@ -720,20 +731,9 @@ export class SessionStore extends Service { this.reservedSessions.set(reservation, session) return session }, - release: () => { - rawRelease() - // Remove the now-inert ownership effect on manual transaction settle; - // its cleanup is the exact idempotent raw release above. - void disposeEffect() - }, + release, }) this.reservations.set(id, reservation) - try { - disposeEffect = this.ctx.effect(() => rawRelease, `sessions.reserve(${id})`) - } catch (error: unknown) { - rawRelease() - throw error - } return reservation } @@ -845,7 +845,9 @@ export class SessionStore extends Service { * @param session - a {@link prepare}d session not yet in the store. * @param reservation - the exact unpublished-id capability when a factory * reserved this session across setup. - * @returns the detach disposer (observer + store removal). + * @returns the detach disposer (observer + store removal). When called from + * a synchronous `session/created` listener, removal and disposal wait until + * that creation dispatch unwinds. * @throws if a session with this id is already in the store. */ enter(session: Session, reservation?: SessionRegistrationReservation): () => void { @@ -858,30 +860,71 @@ export class SessionStore extends Service { || this.reservedSessions.get(reservation) !== session) { throw new Error(`session "${id}" registration reservation does not own this prepared session`) } - if (this.store.has(id)) throw new Error(`session "${id}" already exists`) + if (this.store.has(id) || this.enteringIds.has(id)) { + throw new Error(`session "${id}" already exists`) + } if (appendObservers.has(session)) throw new Error(`session "${id}" is already attached to a store`) + this.enteringIds.add(id) // The carrier is decided HERE, once, from the ENTERING context's scope tag // (`this.ctx` is the caller's context — the tracker mechanism): every // session/created|event|flush dispatch for this session uses it, so the // session's whole event feed is scope-filtered consistently. The base is // the session itself (scoped listeners' `this` is the session). - const carrier = scopeTarget(session, scopeOf(this.ctx)) + let carrier: Scoped + try { + carrier = scopeTarget(session, scopeOf(this.ctx)) + } finally { + this.enteringIds.delete(id) + } + const currentReservation = this.reservations.get(id) + if (reservation === undefined) { + /* v8 ignore next 2 -- reserve() rejects enteringIds, so carrier + * construction cannot install a new same-id reservation */ + if (currentReservation !== undefined) { + throw new Error(`session "${id}" is reserved for unpublished creation`) + } + } else if (currentReservation !== reservation + || this.reservedSessions.get(reservation) !== session) { + throw new Error(`session "${id}" registration reservation does not own this prepared session`) + } + /* v8 ignore next 1 -- enteringIds prevents a same-store commit during carrier construction */ + if (this.store.has(id)) throw new Error(`session "${id}" already exists`) + if (appendObservers.has(session)) throw new Error(`session "${id}" is already attached to a store`) this.carriers.set(session, carrier) const emitCtx = this.ctx appendObservers.set(session, (event) => { emitCtx.emit(carrier, 'session/event', session, event) }) this.acceptedIds.set(session, id) this.store.set(id, session) let entered = true - return () => { + const detach = (): void => { if (!entered) return entered = false - const wasAnnounced = this.announced.delete(session) - appendObservers.delete(session) - this.acceptedIds.delete(session) - this.carriers.delete(session) - this.store.delete(id) - if (wasAnnounced) this.emitDisposed(session, carrier, id) + // A creation listener may own the advanced detach capability. Keep the + // entry and its event observer live until the synchronous creation + // dispatch unwinds, then publish the paired disposal edge. + if (this.announcing.has(session)) { + this.pendingDetach.add(session) + return + } + this.detachEntered(session, id, carrier) } + return detach + } + + /** Remove one exact entered session and emit its paired disposal when announced. */ + private detachEntered(session: Session, id: SessionId, carrier: Scoped): void { + this.pendingDetach.delete(session) + // A stale capability cannot remove observers or storage belonging to a + // later same-id lifecycle. + /* v8 ignore next 1 -- the commit claim makes replacement impossible; this + * remains the exact-identity backstop against future mutation paths */ + if (this.store.get(id) !== session || this.acceptedIds.get(session) !== id) return + const wasAnnounced = this.announced.delete(session) + appendObservers.delete(session) + this.acceptedIds.delete(session) + this.carriers.delete(session) + this.store.delete(id) + if (wasAnnounced) this.emitDisposed(session, carrier, id) } /** Emit `session/created` exactly once for an {@link enter}ed session (with @@ -892,25 +935,31 @@ export class SessionStore extends Service { * @throws if the session is not live or its announcement already began, * including a reentrant call from a creation listener. */ announce(session: Session): void { - const carrier = this.liveCarrierFor(session) + const { carrier, id } = this.liveEntryFor(session) if (this.announced.has(session)) { - throw new Error(`session "${session.id}" was already announced`) + throw new Error(`session "${id}" was already announced`) } // Mark before emit: Cordis emit may deliver to earlier listeners and then // throw. Rollback must still pair that partial creation with disposal, and // a listener cannot recursively create a second lifecycle edge. this.announced.add(session) const args: unknown[] = [carrier, 'session/created', session] - for (const callback of this.ctx.events.dispatch('emit', args)) { - // Synchronous throws intentionally propagate and veto publication; the - // yielded detach then emits the paired disposal edge. An async function - // is nevertheless assignable to a void listener, so observe its returned - // promise: rejection is too late to roll back and must be logged instead - // of becoming unhandled. - const returned: unknown = callback(...args) - void Promise.resolve(returned).catch((error: unknown) => { - this.ctx.logger.warn(`session "${session.id}": session/created listener rejected: ${renderThrown(error)}`) - }) + this.announcing.add(session) + try { + for (const callback of this.ctx.events.dispatch('emit', args)) { + // Synchronous throws intentionally propagate and veto publication; the + // yielded detach then emits the paired disposal edge. An async function + // is nevertheless assignable to a void listener, so observe its returned + // promise: rejection is too late to roll back and must be logged instead + // of becoming unhandled. + const returned: unknown = callback(...args) + void Promise.resolve(returned).catch((error: unknown) => { + this.ctx.logger.warn(`session "${id}": session/created listener rejected: ${renderThrown(error)}`) + }) + } + } finally { + this.announcing.delete(session) + if (this.pendingDetach.has(session)) this.detachEntered(session, id, carrier) } } @@ -940,11 +989,11 @@ export class SessionStore extends Service { * @returns resolves when every flush listener has settled; rejects if one rejects. */ async flush(session: Session): Promise { - await this.ctx.parallel(this.liveCarrierFor(session), 'session/flush', session) + await this.ctx.parallel(this.liveEntryFor(session).carrier, 'session/flush', session) } - /** Return the exact live session's carrier; detached/prepared objects reject. */ - private liveCarrierFor(session: Session): Scoped { + /** Return the exact live session's accepted id and carrier; detached/prepared objects reject. */ + private liveEntryFor(session: Session): { id: SessionId; carrier: Scoped } { const id = this.acceptedIds.get(session) if (id === undefined || this.store.get(id) !== session) { throw new Error(`session "${id ?? session.id}" is not live in this store`) @@ -957,7 +1006,7 @@ export class SessionStore extends Service { if (carrier === undefined) { throw new Error(`session "${id}" has no dispatch carrier`) } - return carrier + return { id, carrier } } /** diff --git a/packages/core/session/tests/session.spec.ts b/packages/core/session/tests/session.spec.ts index ac0f06123c..6edeac0084 100644 --- a/packages/core/session/tests/session.spec.ts +++ b/packages/core/session/tests/session.spec.ts @@ -740,6 +740,79 @@ describe('SessionStore', () => { expect(ctx.sessions.get(SessionId('racy'))).toBe(live) }) + it('claims an id across Context.filter evaluation before committing the exact session', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const id = SessionId('reentrant-enter') + const nested = new Session(id) + const outer = new Session(id) + let nestedError = '' + let attempted = false + Object.defineProperty(outer, Context.filter, { + configurable: true, + get() { + if (!attempted) { + attempted = true + try { + ctx.sessions.enter(nested) + } catch (error: unknown) { + nestedError = String(error) + } + } + return undefined + }, + }) + + const detach = ctx.sessions.enter(outer) + expect(nestedError).toMatch(/already exists/) + expect(ctx.sessions.get(id)).toBe(outer) + detach() + expect(ctx.sessions.get(id)).toBeUndefined() + }) + + it('revalidates reservation ownership after carrier construction runs caller code', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const id = SessionId('released-during-enter') + const reservation = ctx.sessions.reserve(id) + const session = reservation.prepare() + Object.defineProperty(session, Context.filter, { + configurable: true, + get() { + reservation.release() + return undefined + }, + }) + + expect(() => ctx.sessions.enter(session, reservation)).toThrow(/does not own this prepared session/) + expect(ctx.sessions.get(id)).toBeUndefined() + }) + + it('rejects when carrier construction attaches the same session to another store', async () => { + const firstCtx = new Context() + const secondCtx = new Context() + await firstCtx.plugin(SessionStore) + await secondCtx.plugin(SessionStore) + const session = new Session(SessionId('cross-store-carrier')) + let attempted = false + let detachSecond = (): void => {} + Object.defineProperty(session, Context.filter, { + configurable: true, + get() { + if (!attempted) { + attempted = true + detachSecond = secondCtx.sessions.enter(session) + } + return undefined + }, + }) + + expect(() => firstCtx.sessions.enter(session)).toThrow(/already attached to a store/) + expect(firstCtx.sessions.get(session.id)).toBeUndefined() + expect(secondCtx.sessions.get(session.id)).toBe(session) + detachSecond() + }) + it('prepare() + enter() + announce() register a session and emit session/created', async () => { const ctx = new Context() await ctx.plugin(SessionStore) @@ -869,6 +942,49 @@ describe('SessionStore', () => { expect({ created, disposed }).toEqual({ created: 1, disposed: 1 }) }) + it('defers a reentrant detach until the creation dispatch unwinds', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const order: string[] = [] + const session = ctx.sessions.prepare(SessionId('reentrant-detach')) + const detach = ctx.sessions.enter(session) + + ctx.on('session/created', (created) => { + order.push('created:first') + detach() + expect(ctx.sessions.get(created.id)).toBe(created) + }) + ctx.on('session/created', (created) => { + order.push('created:second') + expect(ctx.sessions.get(created.id)).toBe(created) + }) + ctx.on('session/disposed', (disposed) => { + order.push('disposed') + expect(ctx.sessions.get(disposed.id)).toBeUndefined() + }) + + ctx.sessions.announce(session) + + expect(order).toEqual(['created:first', 'created:second', 'disposed']) + expect(ctx.sessions.get(session.id)).toBeUndefined() + detach() + }) + + it('rolls back create when its owner unloads from session/created', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + let ownerCtx!: Context + const owner = await ctx.plugin(Object.assign((inner: Context) => { ownerCtx = inner }, { inject: ['sessions'] })) + const id = SessionId('create-unload-race') + ctx.on('session/created', (session) => { + if (session.id === id) void owner.dispose() + }) + + ownerCtx.sessions.create(id) + await owner.dispose() + expect(ctx.sessions.get(id)).toBeUndefined() + }) + it('synthesizes a minimal current-version header for a bare-created session', async () => { const ctx = new Context() await ctx.plugin(SessionStore) diff --git a/packages/subagent/subagent-inprocess/README.md b/packages/subagent/subagent-inprocess/README.md index e5b40ccfdc..1e812ce60d 100644 --- a/packages/subagent/subagent-inprocess/README.md +++ b/packages/subagent/subagent-inprocess/README.md @@ -13,7 +13,7 @@ Runs a child as a child [`Agent`](../../core/agent) on the same cordis context ( 3. drives the one-shot: `child.send(prompt)` then `await child.whenIdle()` (ordering matters — `send` enqueues synchronously, so `whenIdle` observes the queued work and resolves on the child's `running → idle` transition, never before the turn starts); there is deliberately NO re-prompt for a structured child that finished cleanly without calling `structured_output` — the shortfall maps to an `error` result for the parent; 4. reads the result, scoped to the child's OWN events (everything at or after `seedLength`, so a seeded child that produced no message of its own never returns the seeded parent's last message): the last `assistant/message` content (deep-cloned — the log is frozen) and the last `turn/end.reason` mapped to a `SubagentStopReason`. A structured run surfaces the captured value as `result.structured`; a structured child that finished cleanly WITHOUT ever capturing settles `error` (a clean finish without the demanded result is a failure, not a success with a missing field). -`SubagentService` waits for `run.started` before emitting `subagent/start`, so a synchronous start observer can resolve the published child with `ctx.agents.get(run.id)`; the result driver awaits the same boundary before sending the prompt. An attempt that never publishes rejects readiness and emits no false start/end pair; its result reports a deliberate cancel/dispose as `aborted` and propagates an infrastructure fault. `dispose()` awaits creation or rollback and then delegates to `AgentHandle.dispose()` (stop and drain → remove agent → detach session → unwind scope). Before readiness, `cancel()` deactivates the unpublished owner so no agent, session, or lifecycle event can escape; after readiness it cancels the live child immediately. Either path records the cancellation, so a cancel landing before any `turn/end` settles `aborted`, honoring the cancel contract rather than the generic no-turn `error`. +`SubagentService` waits for `run.started` before emitting `subagent/start`, so a synchronous start observer can resolve the published child with `ctx.agents.get(run.id)`; the result driver awaits the same boundary before sending the prompt. An attempt that never publishes rejects readiness and emits no false start/end pair; its result reports a deliberate cancel/dispose as `aborted` and propagates an infrastructure fault. `dispose()` awaits creation or rollback and then delegates to `AgentHandle.dispose()` (stop and drain → remove agent → detach session → unwind scope). Before readiness, `cancel()` deactivates the creation owner: before creation notification begins, no agent/session lifecycle edge escapes; if cancellation is triggered synchronously by a creation observer, every begun edge is paired by rollback and the driver never unlocks or starts. After readiness, cancellation reaches the live child immediately. Either path records the cancellation, so a cancel landing before any `turn/end` settles `aborted`, honoring the cancel contract rather than the generic no-turn `error`. ### `InProcessRunOptions` diff --git a/packages/workflow/workflow-workerthread/README.md b/packages/workflow/workflow-workerthread/README.md index 0aba0eb680..1879e60e7e 100644 --- a/packages/workflow/workflow-workerthread/README.md +++ b/packages/workflow/workflow-workerthread/README.md @@ -23,7 +23,7 @@ What the seam guarantees regardless, because benign scripts hit these constantly `start()` shape-validates the meta DATA host-side and parse-checks the body with the identical wrapper the worker compiles (`new vm.Script`, discarded), preserving the seam's synchronous `META_INVALID`/`SCRIPT_PARSE` throws; one redundant parse per run is the deliberate price. It then spawns the worker (unbuilt: a JavaScript data-URL bootstrap registers tsx's ESM and CommonJS transforms inside the worker before importing `src/worker.ts`, giving the whole mixed-module source graph full TypeScript and tsconfig-path transformation on every supported Node line; built: the sibling `lib/worker.js` bundle) with the meta, body, `args`, and worker-side limits as `workerData`. -Inside the worker, `runWorkerSession` builds the execution core (hooks, combinators, concurrency semaphore, caps, fatal-error discipline) over a **child port**. `agent()` sends `child-start`, and the host starts the child on `ctx.subagents` with parent attribution, the shared per-run abort signal, and `outputSchema`/`model` pass-through. +Inside the worker, `runWorkerSession` builds the execution core (hooks, combinators, concurrency semaphore, caps, fatal-error discipline) over a **child port**. `agent()` sends `child-start`, and the host starts the child through the holder-bound `SubagentService` handle captured synchronously by `start()`, with parent attribution, the shared per-run abort signal, and `outputSchema`/`model` pass-through. This capture is part of the seam's holder-owned lifetime: unloading the engine removes `ctx.workflows` for new calls but does not invalidate an already returned run whose worker starts another child afterward. The host observes `run.result` immediately but buffers its snapshotted wire projection until `run.started` fulfills. It then replies `child-started` with the child id before forwarding settlement, so `workflow/agent-start` always names a ready child and precedes its end. A readiness rejection replies `child-start-error`, emits no workflow agent pair, and makes the host dispose the attempt because the worker never received a handle; the worker classifies it as fatal `AGENT_START` unless cancellation already owns the run. If readiness fulfills, an infrastructure result rejection crosses as `child-failed`/`AGENT_RESULT` regardless of whether that rejection settled before or after readiness. Child disposal acknowledgements complete the RPC. diff --git a/packages/workflow/workflow-workerthread/src/host.ts b/packages/workflow/workflow-workerthread/src/host.ts index 56c0e455f8..8c839fbccb 100644 --- a/packages/workflow/workflow-workerthread/src/host.ts +++ b/packages/workflow/workflow-workerthread/src/host.ts @@ -1,9 +1,10 @@ /** * The host half of one worker-engine run: spawn the Worker, bridge its child - * RPC onto `ctx.subagents`, fan its observer messages into the engine's - * events, and own cancellation, the settle-within-grace guarantee, and child - * cleanup. The worker's lifetime IS the run's lifetime: `dispose()` always - * ends with `worker.terminate()`, so no thread outlives its run. + * RPC onto the holder-bound subagent service, fan its observer messages into + * the engine's events, and own cancellation, the settle-within-grace + * guarantee, and child cleanup. The worker's lifetime IS the run's lifetime: + * `dispose()` always ends with `worker.terminate()`, so no thread outlives its + * run. * * The run's `result` promise settles exactly once, from whichever of these * lands first: the worker's `result` message (a host-side cancellation in @@ -47,6 +48,7 @@ import type { Context } from 'cordis' import type { Agent } from '@deepseek-ai/dsh-agent' import { assertNever } from '@deepseek-ai/dsh-llm' import { snapshotJsonValue } from '@deepseek-ai/dsh-session' +import type SubagentService from '@deepseek-ai/dsh-subagent' import type { SubagentRun } from '@deepseek-ai/dsh-subagent' import type { WorkflowAgentEndInfo, WorkflowAgentInfo, WorkflowMeta, WorkflowResult, WorkflowRun, WorkflowRunId } from '@deepseek-ai/dsh-workflow' import { renderThrown } from './realm.ts' @@ -121,7 +123,9 @@ function resolveWorkerSpawn(init: WorkerInit): { entry: URL; options: WorkerOpti * `start()` directly. Owns the Worker, the child registry, and the result * settlement; `result` never rejects. `meta` is this handle's OWN clone * (event payloads carry separate clones), so a consumer mutating it corrupts - * nothing. + * nothing. The holder-bound SubagentService handle is captured before the + * engine returns this run, so unloading the engine removes only the ability to + * start another workflow; this run can still start and clean up its children. */ export class WorkerRun implements WorkflowRun { /** Settles exactly once with the run's outcome; never rejects. */ @@ -151,6 +155,7 @@ export class WorkerRun implements WorkflowRun { constructor( private readonly ctx: Context, + private readonly subagents: SubagentService, readonly id: WorkflowRunId, readonly meta: WorkflowMeta, private readonly parent: Agent, @@ -329,7 +334,7 @@ export class WorkerRun implements WorkflowRun { this.hostStarted += 1 let run: SubagentRun try { - run = this.ctx.subagents.start(this.provider, { + run = this.subagents.start(this.provider, { prompt: [{ type: 'text', text: request.prompt }], parent: this.parent, signal: this.controller.signal, diff --git a/packages/workflow/workflow-workerthread/src/index.ts b/packages/workflow/workflow-workerthread/src/index.ts index e0b8caf3fb..8a21847cd5 100644 --- a/packages/workflow/workflow-workerthread/src/index.ts +++ b/packages/workflow/workflow-workerthread/src/index.ts @@ -168,8 +168,17 @@ export class WorkerWorkflowEngine extends WorkflowService { ...request.args !== undefined ? { args: request.args } : {}, limits, } + // Capture the dependency while this service call is still traced through + // the start() holder. Cordis strips the engine-provider shadow when it + // returns the SubagentService handle, so an already-returned run can keep + // starting children after an engine HMR unload removes ctx.workflows. + // Re-resolving `this.ctx.subagents` later from WorkerRun would instead walk + // the now-inactive engine fiber and break the seam's holder-owned lifetime. + const runCtx = this.ctx + const subagents = runCtx.subagents const workerRun = new WorkerRun( - this.ctx, + runCtx, + subagents, id, structuredClone(meta), request.parent, diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index 9ccbb17a4e..641b26518d 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -148,8 +148,8 @@ async function setup(options?: SetupOptions) { // A fixed concurrency ceiling: the auto-resolved default is machine-derived // (cores - 2, floored at 1), so tests that expect N children in flight // would wedge on small CI runners. - await ctx.plugin(WorkerWorkflowEngine, { provider: 'stub', maxConcurrentAgents: 8, ...options?.config }) - return { ctx, provider, parent: fakeParent() } + const engineFiber = await ctx.plugin(WorkerWorkflowEngine, { provider: 'stub', maxConcurrentAgents: 8, ...options?.config }) + return { ctx, provider, parent: fakeParent(), engineFiber } } /** The standard test meta plus a body, spread into a start request. */ @@ -1235,6 +1235,34 @@ describe('dsh-workflow-workerthread', () => { expect(ctx.get('workflows')).toBeUndefined() }) + it('keeps a holder-owned run usable when the engine unloads before its child starts', async () => { + const { ctx, parent, provider, engineFiber } = await setup({ reply: () => text('survived reload') }) + let handle!: ReturnType + const holder = await ctx.plugin(Object.assign((inner: Context) => { + handle = inner.workflows.start({ ...scripted("return await agent('after reload')"), parent }) + }, { inject: ['workflows'] })) + + try { + // A real worker cannot deliver child-start in the synchronous start() + // slice. Unload the provider before that message arrives: the returned + // run belongs to `holder`, not to the engine fiber being reloaded. + expect(provider.runs).toHaveLength(0) + await engineFiber.dispose() + expect(ctx.get('workflows')).toBeUndefined() + + await expect(handle.result).resolves.toEqual({ + value: 'survived reload', + stopReason: 'completed', + agentsStarted: 1, + }) + expect(provider.runs).toHaveLength(1) + } finally { + await handle.dispose() + await holder.dispose() + await ctx.fiber.dispose() + } + }) + it('has the class-plugin export shape (default = the engine service class)', () => { expect(workerEngineModule.default).toBe(WorkerWorkflowEngine) const loader = Object.create(Loader.prototype) as Loader diff --git a/scripts/gen-cordis-catalog.ts b/scripts/gen-cordis-catalog.ts index 32ea8539c6..ae1fa8d170 100644 --- a/scripts/gen-cordis-catalog.ts +++ b/scripts/gen-cordis-catalog.ts @@ -81,12 +81,15 @@ const FENCE = 'ts cordis-catalog' */ export const LINK_MAP: Record = { Agent: 'core.md', + AgentRegistrationReservation: 'core.md', ContentBlock: 'core.md', Message: 'core.md', MessageSource: 'core.md', GenerateOptions: 'core.md', LlmCallConfig: 'core.md', SessionEvent: 'core.md', + SessionStartSource: 'core.md', + SessionRegistrationReservation: 'session.md', StreamChunk: 'llm-streaming.md', TurnEndReason: 'session.md', ToolDefinition: 'tools.md', diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 5459755be5..048ce58937 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -249,6 +249,9 @@ const DYNAMIC_EVENT_DISPATCHERS: Array<{ event: string; pkg: string; method: str // Creation notifications preserve synchronous veto/rollback but observe // returned promises explicitly so async listener rejection is not unhandled. { event: 'agent/created', pkg: 'agent', method: 'events.dispatch' }, + // Registry disposal reuses the stable carrier captured before entry commit + // and contains each listener directly rather than rebuilding via agentEvents. + { event: 'agent/disposed', pkg: 'agent', method: 'events.dispatch' }, { event: 'session/created', pkg: 'session', method: 'events.dispatch' }, // Session disposal uses direct callback resolution so teardown contains each // synchronous throw and returned-promise rejection independently. diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index e238583e69..62111d1551 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -11,6 +11,7 @@ { "doc": "docs/core-data-structures/core.md", "symbol": "LlmCallConfig", "source": "packages/llm/llm/src/call-config.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "SessionEvent", "source": "packages/core/session/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "Agent", "source": "packages/core/agent/src/types.ts" }, + { "doc": "docs/core-data-structures/core.md", "symbol": "AgentRegistrationReservation", "source": "packages/core/agent/src/index.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "HookContext", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "PromptDecision", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "ContinuationDecision", "source": "packages/core/agent/src/types.ts" }, @@ -40,6 +41,7 @@ { "doc": "docs/core-data-structures/session.md", "symbol": "SurfaceOp", "source": "packages/core/session/src/types.ts" }, { "doc": "docs/core-data-structures/session.md", "symbol": "SurfaceIntent", "source": "packages/core/session/src/types.ts" }, { "doc": "docs/core-data-structures/session.md", "symbol": "SurfaceNode", "source": "packages/core/session/src/surface.ts" }, + { "doc": "docs/core-data-structures/session.md", "symbol": "SessionRegistrationReservation", "source": "packages/core/session/src/index.ts" }, { "doc": "docs/core-data-structures/persistence.md", "symbol": "SessionHeader", "source": "packages/core/session/src/types.ts" }, { "doc": "docs/core-data-structures/persistence.md", "symbol": "CreateSessionOptions", "source": "packages/core/session/src/types.ts" }, diff --git a/vendor/README.md b/vendor/README.md index bf0f0b5a8c..0a709495db 100644 --- a/vendor/README.md +++ b/vendor/README.md @@ -35,6 +35,7 @@ Keep this log exhaustive — every divergence from upstream must be listed. 3. **All `tsconfig.json` files**: regenerated to extend the repo-root `tsconfig.base.json`, emit TypeScript intermediates to `lib/types`, and declare project references. 4. **Vendored TypeScript source internal specifiers**: changed local relative imports/exports from upstream's specifier shape to explicit `.ts` specifiers so TypeScript rewrites emitted JS to `.js` while declarations keep explicit, NodeNext-safe `.ts` specifiers. This includes `loader/src/config/isolate.ts` using `declare module './entry.ts'`. 5. **`schemastery/tsdown.config.ts` and `logger-console/tsdown.config.ts`**: ours, not upstream files — per-package build-shape overrides (dual ESM+CJS output; separate node/browser entries) for the repo-root tsdown build. They read the JS emitted under `lib/types` and then write the publish runtime entries under `lib/`. Like the regenerated tsconfigs, they are not part of the upstream sync surface. +6. **`cordis/src/fiber.ts` lifecycle hardening**: locally closes three reentrant disposal gaps. An effect's owner-list wrapper is registered before its setup body runs, so an unload begun from inside setup awaits setup and every collected cleanup; synchronous setup failure removes the wrapper and rolls back collected cleanup. Async cleanup stays owner-visible until quiescence, and Cordis's internal effect composition joins an already-running cleanup while repeated public disposer calls retain their upstream single-shot result. Effect creation is rejected while the owner is `UNLOADING` (while `PENDING` and `LOADING` remain legal), preventing cleanup-time registrations from escaping the unload snapshot. Child fibers register and receive their parent-owned disposer before `internal/plugin` publication, resolve dependency declarations added by that notification before activation, drain effects attached while pending, skip plugin execution when reentrant disposal invalidates the load epoch before its first checkpoint, and contain teardown-notification failures per observer so one callback cannot starve peers or interrupt ownership cleanup. ## Sync procedure diff --git a/vendor/cordis/src/fiber.ts b/vendor/cordis/src/fiber.ts index fd472e7733..7e7766b48d 100644 --- a/vendor/cordis/src/fiber.ts +++ b/vendor/cordis/src/fiber.ts @@ -80,6 +80,35 @@ interface EffectRunner { getOuterStack: () => string[] } +// Public effect disposers remain single-shot, but structural owners and outer +// effects must still be able to join a cleanup that another caller started. +const effectInertia = new WeakMap void | Promise>() + +function runDisposable(dispose: Disposable) { + const result = dispose() + return effectInertia.get(dispose)?.() ?? result +} + +/** Notify plugin teardown without allowing one observer to break ownership cleanup. */ +function emitPluginDisposed(context: Context, fiber: Fiber) { + const args: any[] = ['internal/plugin', fiber] + let callbacks: Function[] + try { + callbacks = context.events.dispatch('emit', args) + } catch (error) { + context.logger.error(error) + return + } + for (const callback of callbacks) { + try { + const returned = callback(...args) + void Promise.resolve(returned).catch(error => context.logger.error(error)) + } catch (error) { + context.logger.error(error) + } + } +} + /** Lifecycle state for one plugin fiber. */ export const enum FiberState { PENDING, @@ -175,24 +204,19 @@ export class Fiber { collect, } - this.context.emit('internal/plugin', this) - - for (const name of Object.keys(this.inject)) { - this._checkImpl(name) - } - + let shouldRefresh = false this.dispose = parent.fiber.effect(() => { const remove = runtime.fibers.push(this) try { this.config = resolveConfig(runtime, config) - this._refresh() + shouldRefresh = true } catch (error) { this.ctx.logger.error(error) this._error = error } return async () => { this.uid = null - this.context.emit('internal/plugin', this) + emitPluginDisposed(this.context, this) if (this.ctx.registry.has(runtime.callback)) { remove() if (!runtime.fibers.length) { @@ -200,6 +224,16 @@ export class Fiber { } } this._setEpoch(INACTIVE) + // A PENDING fiber can already own effects registered by an + // internal/plugin observer. Its epoch is still INACTIVE, so + // _setEpoch() has no transition to drive; explicitly unload that + // pre-activation work before reporting disposal complete. + if (!this.inertia) { + this._updateState(() => { + this.inertia = this._unload() + return FiberState.UNLOADING + }) + } // `this.inertia` itself should never reject — both `_reload` and // `_unload` swallow their own work errors via `ctx.logger.error`. // If it *does* reject, the only remaining cause is the logger @@ -211,6 +245,28 @@ export class Fiber { } } }, 'ctx.plugin()') + + try { + // Publish only after the parent owns a fully assigned disposer. A + // synchronous observer may dispose either this fiber or its parent. + this.context.emit('internal/plugin', this) + } catch (error) { + // Publication failed synchronously. The disposer removes the child + // from both the parent and runtime before control escapes. + void Promise.resolve(this.dispose()).catch(reason => this.ctx.logger.error(reason)) + throw error + } + + // Keep the initial notification's historical PENDING view. The loader + // may also extend `inject` in that notification, so resolve dependencies + // only after publication. A reentrant parent unload makes the child + // disposer responsible for draining any PENDING effects instead. + if (this.uid !== null && parent.fiber.state !== FiberState.UNLOADING) { + for (const name of Object.keys(this.inject)) { + this._checkImpl(name) + } + if (shouldRefresh) this._refresh() + } } else { this.uid = 0 this.ctx = this.context = parent @@ -292,21 +348,28 @@ export class Fiber { effect(execute: () => Effect, label?: string): AsyncDisposable> effect(execute: () => Effect, label = 'anonymous'): any { this.assertActive() + if (this.state === FiberState.UNLOADING) { + throw new CordisError('INACTIVE_EFFECT') + } const disposables: Disposable[] = [] + let disposing = false + let disposalTask: void | Promise const dispose = () => { + if (disposing) return disposalTask + disposing = true let task!: void | Promise - for (const dispose of disposables.splice(0).reverse()) { + for (const disposable of disposables.splice(0).reverse()) { if (task) { - task = task.then(dispose) + task = task.then(() => runDisposable(disposable)) } else { - const result = dispose() + const result = runDisposable(disposable) if (isObject(result) && 'then' in result) { task = result as any } } } - return task + return disposalTask = task } const meta: EffectMeta = { label, children: [] } @@ -324,34 +387,107 @@ export class Fiber { } let task: void | Promise + let executing = true + let resolveSetup: (() => void) | undefined + let rejectSetup: ((reason: unknown) => void) | undefined + let setupBarrier: Promise | undefined + let setupFailed = false + let inFlight: void | Promise + let removeWrapper = () => false + + const waitForSetup = () => { + setupBarrier ??= new Promise((resolve, reject) => { + resolveSetup = resolve + rejectSetup = reject + }) + return setupBarrier + } + + const disposeAfter = (setup: PromiseLike) => { + return Promise.resolve(setup).then( + () => dispose(), + async (reason) => { + await dispose() + throw reason + }, + ) + } + + const finalizeDisposal = (callback: () => void | Promise) => { + let result: void | Promise + try { + result = callback() + } catch (error) { + removeWrapper() + throw error + } + if (isObject(result) && 'then' in result) { + const pending = Promise.resolve(result).finally(() => { + removeWrapper() + if (inFlight === pending) inFlight = undefined + }) + return inFlight = pending + } + removeWrapper() + return result + } + + const wrapper = defineProperty(() => { + // A synchronous setup failure can race an owner unload that already + // captured this wrapper but has not invoked it yet. The failed effect is + // never returned publicly, so let that internal caller await rollback. + if (!runner.epoch) return setupFailed ? inFlight : undefined + runner.epoch = false + return finalizeDisposal(() => { + if (executing) return disposeAfter(waitForSetup()) + return task ? disposeAfter(task) : dispose() + }) + }, symbols.effect, meta) as AsyncDisposable + effectInertia.set(wrapper, () => inFlight) + + // Make the effect visible to a reentrant owner unload before execute() + // runs any plugin code. Async teardown stays owner-visible until it + // settles, allowing an outer effect to join cleanup another caller began. + removeWrapper = this._disposables.push(wrapper) try { task = this._execute(runner) } catch (reason) { - dispose() + executing = false + setupFailed = true + runner.epoch = false + let cleanup: void | Promise + try { + cleanup = finalizeDisposal(dispose) + } finally { + rejectSetup?.(reason) + } + if (isObject(cleanup) && 'then' in cleanup) { + cleanup.catch(error => this.ctx.logger.error(error)) + } throw reason } + executing = false + if (setupBarrier) { + Promise.resolve(task).then(resolveSetup, rejectSetup) + } // prevent unhandled rejection — both from `task` itself and from the // disposer chain if it fails to settle cleanly. - task?.catch(dispose).catch((error) => this.ctx.logger.error(error)) - - const wrapper = defineProperty(() => { - if (!runner.epoch) return - runner.epoch = false - return task ? task.then(dispose) : dispose() - }, symbols.effect, meta) as AsyncDisposable + task?.catch(() => { + if (!runner.epoch) return dispose() + return finalizeDisposal(dispose) + }).catch((error) => this.ctx.logger.error(error)) const disposeAsync = () => { if (!runner.epoch) return runner.epoch = false - return dispose() + return finalizeDisposal(dispose) } wrapper.then = async (onFulfilled, onRejected) => { return Promise.resolve(task) .then(() => disposeAsync) .then(onFulfilled, onRejected) } - disposables.push(this._disposables.push(wrapper)) return wrapper } @@ -434,7 +570,12 @@ export class Fiber { const oldEpoch = this._runner.epoch try { await Promise.resolve() - await this._execute(this._runner) + // A disposer queued before this checkpoint may already have invalidated + // the load. Do not run plugin code for a stale epoch; the state update + // below will drain any effects collected while the fiber was PENDING. + if (this._runner.epoch === oldEpoch) { + await this._execute(this._runner) + } } catch (reason) { // impl guarantees that the error is non-null (?) this.ctx.logger.error(reason) @@ -457,7 +598,7 @@ export class Fiber { await composeError(async (info) => { await Promise.resolve() info.error = new Error() - await dispose() + await runDisposable(dispose) }, this._runner.getOuterStack) } catch (reason) { this.ctx.logger.error(reason) From 9fc2260bb638621205658b9cdab1eb3f6a6d6d7a Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 10:17:31 +0800 Subject: [PATCH 207/232] fix(workflow): harden terminal cleanup races Queue worker results before settlement cleanup, claim terminal and death boundaries before provider callbacks, and close late-message admission. Make child cancellation and disposal reentrancy-safe across the workflow bridge and generic subagent wrapper, with adversarial regression coverage and RFC documentation. --- .../2026-07-08-agent-scope-contexts.md | 57 ++- packages/subagent/subagent/README.md | 2 +- packages/subagent/subagent/src/index.ts | 20 +- .../subagent/subagent/tests/service.spec.ts | 51 +++ .../workflow/workflow-workerthread/README.md | 12 +- .../workflow-workerthread/src/host.ts | 264 ++++++++--- .../workflow-workerthread/src/runtime.ts | 28 +- .../workflow-workerthread/src/session.ts | 14 +- .../tests/session.spec.ts | 30 ++ .../tests/workflow-workerthread.spec.ts | 423 +++++++++++++++++- 10 files changed, 803 insertions(+), 98 deletions(-) diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index c29fb4f83b..df6433dd26 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -613,7 +613,7 @@ Starting a run reads every top-level request field once before capability valida The driver first installs provider ownership. Only after that succeeds does it attach the request's abort listener and create one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves neither a child nor an orphaned listener. Calling `runOwner.ctx.agents.create()` gives the child factory an explicit `ownerCtx` carrying the run-owner fiber and scope, while the registry's traced factory receiver preserves AgentLoop's injected dependency origin. Parent teardown, provider teardown, and manual run disposal all dispose this same run-owner node; moving it out of the active state synchronously prevents an unpublished setup from publishing afterward, while all three paths follow one quiescence promise. This structured ownership does not change the child's flat capability view. -The provider's run separates acceptance from publication with `started: Promise`, but the service does not expose that caller-owned handle directly. It captures `id`, `started`, `result`, and each method once, binds methods to the provider-owned run handle, and returns a frozen service-owned wrapper. Capturing `dispose` first also preserves a rollback capability if a later accessor or method check reveals a malformed handle. +The provider's run separates acceptance from publication with `started: Promise`, but the service does not expose that caller-owned handle directly. It captures `id`, `started`, `result`, and each method once, binds methods to the provider-owned run handle, and returns a frozen service-owned wrapper. Capturing `dispose` first also preserves a rollback capability if a later accessor or method check reveals a malformed handle. The wrapper installs its shared disposal promise before invoking the raw provider callback, so synchronous reentry through the returned wrapper and ordinary repeat calls join one provider disposal rather than slipping through a not-yet-assigned memo. If the raw disposer directly returns that same reentrant wrapper promise, the service rejects the cyclic provider contract instead of awaiting a promise that depends on itself forever. The wrapper's `result` promise captures `output`, optional `structured`, and `stopReason` once and resolves to one detached, deeply frozen lossless-JSON value shared by the caller and lifecycle telemetry. Malformed terminal data is an infrastructure fault; it rejects only after the service has started rollback of the provider attempt. The service observes the normalized result immediately, before waiting for readiness, so an early rejection is never temporarily unhandled. @@ -658,24 +658,57 @@ SubagentService.start(...): Workflow worker bridge after receiving returnedRun: register the run so cancellation can reach pre-publication work attach result settlement handlers immediately and snapshot the outcome - if returnedRun.started fulfills: - send ChildStarted; then send the buffered or eventual outcome - else: - send ChildStartError and dispose the attempt + re-check terminal admission after provider start returns + if admission closed: + if the exact run remains registered: cancel once and dispose it + if worker-message admission remains open: send ChildStartError + else wait for returnedRun.started: + on fulfillment: + re-check terminal admission + if closed: apply the same identity-guarded refusal + else: send ChildStarted; then send the buffered or eventual outcome + on rejection: + if worker-message admission remains open: send ChildStartError + if the exact run remains registered: dispose it -Before publishing the workflow's own result: - abort the shared child-request signal - call cancel("workflow settled") on every host-registered run - only then settle the workflow result +Worker after choosing its result: + queue Result on the worker-to-host port + only then reap stray child handles + +Host at workflow Result receipt: + cancellationWasRequested = external cancellation is already in flight + atomically claim chosen = + if cancellationWasRequested and result is not cancelled: + cancelledResult + else: + result + + if not cancellationWasRequested: + abort the shared child-request signal + call cancel("workflow settled") on every host-registered run + + settle chosen + +Host at the first worker death signal: + close worker-message admission + claim death or preserve an earlier cancellation/Result/grace outcome + cancel and dispose every registered child + synthesize missing lifecycle ends + +Host at physical worker exit: + perform a final disposal-only sweep + do not repeat explicit child cancellation ``` -Every downstream protocol that announces a subagent must honor the same boundary. The workflow worker bridge therefore registers the returned run before waiting, observes and snapshots `result` immediately, sends `ChildStarted` only after `started` fulfills, and sends `ChildStartError` plus host-driven disposal when readiness rejects. +Every downstream protocol that announces a subagent must honor the same boundary. The workflow worker bridge therefore registers the returned run before waiting, observes and snapshots `result` immediately, and sends `ChildStarted` only after `started` fulfills while admission remains open. A readiness rejection is refused and host-disposed; `ChildStartError` is sent while worker-message admission remains open, and an already-retired exact run is not cleaned twice. Provider `start()` is itself arbitrary code and may synchronously reenter workflow cancellation before its returned run reaches that registry. The bridge attaches both promise observers, re-checks terminal admission immediately after `start()` returns and again at readiness, and turns a closed boundary into identity-guarded cancellation, disposal, and refusal rather than late worker admission or lifecycle announcement. An arbitrary provider may still fulfill its own `started` promise after the workflow boundary; the bridge refuses and cleans up that attempt instead of claiming it can undo provider-side publication. Cancellation before readiness is a publication decision, not merely a flag for later result mapping. The in-process run synchronously deactivates its owner fiber. If cancellation lands before publication, the factory's liveness check prevents either creation edge. If it begins synchronously inside `session/created`, `agent/created`, or `agent/session-start`, the publication barrier lets the current notification phase unwind without revoking its world, the next liveness check prevents every later phase and driver start, and rollback pairs every creation edge that already began. In either case `started` rejects, no `subagent/start` or `subagent/end` is emitted, and the run result settles as `aborted`. -Before the workflow's own result becomes observable, its host likewise drives both permitted cancellation channels: it aborts the shared request signal and calls each registered run's `cancel()`, including runs still waiting on readiness. Provider cancel callbacks are contained independently so one broken implementation cannot prevent peers from receiving cancellation or wedge the workflow result. +Receipt of the worker's `Result` message is the workflow host's atomic first-wins boundary. The worker queues that message before its own settlement-reap `ChildCancel` messages, so same-port FIFO prevents an internal child callback from masquerading as earlier run cancellation. Each contender records its claim before its own callback fanout: external `cancel()` records its reason first, while Result receipt snapshots any earlier cancellation and claims the resulting terminal outcome before invoking settlement-cleanup provider code. A caller, signal, or dispose cancellation already in flight therefore overrides a non-cancelled worker report, while the report wins otherwise. Before exposing that chosen result, the host drives both permitted child-cancellation channels by aborting the shared request signal and calling every registered run's `cancel()`, including runs still waiting on readiness. Those calls are settlement-only cleanup, and the terminal claim makes a reentrant `WorkerRun.cancel()` a side-effect-free loser rather than merely repairing its result afterward. Host fanout and the worker's FIFO-later `ChildCancel` can both reach the explicit channel, so a per-call gate invokes each provider `cancel()` at most once; the seam does not require that callback to be idempotent. Explicit child cancel callbacks are contained independently so one throwing callback cannot starve peers or alter settlement. -Together these rules prevent an early result rejection from going unhandled, ensure `workflow/agent-start` never names an unpublished child, and prevent a child from publishing after its workflow has ended. +Unexpected worker death uses the same terminal-claim rule, but terminal ownership, message admission, and exit cleanup are separate state. The host snapshots whether external cancellation was already accepted, claims either `cancelled` or the death error, closes inbound worker messages, and only then reaps children and synthesizes missing lifecycle events. Closing admission is necessary because Node may emit `error`, deliver an already-queued `message`, and only then emit `exit`; without the logical barrier, that message could start a child or narrate after `workflow/end`. Provider code reentering cancellation during cleanup cannot rewrite a death-first error; conversely, a cancellation accepted before death remains the winner. If Result or grace already claimed the outcome, death preserves it while still reaping promptly. Physical exit then performs a final disposal-only sweep without repeating explicit provider cancellation. `handle.dispose()` claims its public promise before that traversal invokes cancellation or disposal callbacks, and every `disposeChild` path independently claims the call ID promise before invoking the wrapped child disposer. Public-first reentry returns the existing holder promise; worker-first reentry may begin holder disposal, whose child traversal joins the already-claimed call ID promise. This distinction is necessary because grace settlement precedes `worker.terminate()` and its exit event: suppressing a duplicate outcome, late message, or repeated cleanup request must not suppress disposal of survivors in the host registry. + +Together these rules prevent an early result rejection from going unhandled, ensure `workflow/agent-start` never names an unready child, and prevent the bridge from admitting or announcing a child after its workflow has ended. Parent teardown reaches `runOwner` by nesting; the provider and returned run handle reach the same node through their explicit disposers. diff --git a/packages/subagent/subagent/README.md b/packages/subagent/subagent/README.md index 7e63f07376..e29706bd8b 100644 --- a/packages/subagent/subagent/README.md +++ b/packages/subagent/subagent/README.md @@ -21,7 +21,7 @@ Unlike the bash seam (one executor per context, second load throws), **multiple | `registerProvider(provider)` | Read and validate the name, capability object and four boolean flags, `inheritsParentContext`, and `start` callback exactly once, then register a frozen acceptance snapshot under the accepted name. Malformed fixed fields fail loud before registration; later caller mutation cannot change registry behavior or HMR cleanup, while `start` stays bound to the original provider receiver. Throws `SubagentError('DUPLICATE_PROVIDER')` on a name clash. Effect-scoped (HMR-safe); returns the disposer. | | `getProvider(name)` | Look up the frozen registry snapshot (`undefined` if absent). | | `list()` | Registered provider names (insertion order). | -| `start(name, request)` | Resolve the provider (`NO_PROVIDER` if absent), read every caller field once into one acceptance snapshot, validate every requested START-TIME capability and scalar value before any child is created, and materialize prompt/schema/options/filter data through a single-pass lossless-JSON snapshot before delegating to `provider.start`. Acquire and memoize the provider run's disposer before reading the rest of its handle, then return a frozen service-owned wrapper whose fields are captured once, whose methods remain bound to the provider handle, and whose `result` is one detached, deeply frozen normalization shared by the caller and telemetry. Malformed handle access/binding starts rollback before the synchronous fault escapes; malformed terminal data rejects only after rollback reaches quiescence. Emit `subagent/start` only after `run.started` fulfills and the paired `subagent/end` after that started run settles; a pre-publication readiness rejection emits neither. | +| `start(name, request)` | Resolve the provider (`NO_PROVIDER` if absent), read every caller field once into one acceptance snapshot, validate every requested START-TIME capability and scalar value before any child is created, and materialize prompt/schema/options/filter data through a single-pass lossless-JSON snapshot before delegating to `provider.start`. Acquire the provider run's disposer before reading the rest of its handle, then return a frozen service-owned wrapper whose fields are captured once, whose methods remain bound to the provider handle, and whose `result` is one detached, deeply frozen normalization shared by the caller and telemetry. The wrapper claims its shared disposal promise before invoking raw provider code, so synchronous reentry and ordinary repeats join one provider call; a raw disposer that directly returns that same reentrant wrapper promise is rejected as a cyclic provider contract instead of hanging forever. Malformed handle access/binding starts rollback before the synchronous fault escapes; malformed terminal data rejects only after rollback reaches quiescence. Emit `subagent/start` only after `run.started` fulfills and the paired `subagent/end` after that started run settles; a pre-publication readiness rejection emits neither. | ## Capabilities: two kinds, discovered two ways diff --git a/packages/subagent/subagent/src/index.ts b/packages/subagent/subagent/src/index.ts index b319a7f31d..74b7df171b 100644 --- a/packages/subagent/subagent/src/index.ts +++ b/packages/subagent/subagent/src/index.ts @@ -379,14 +379,30 @@ export class SubagentService extends Service { let disposal: Promise | undefined const dispose = (): Promise => { if (disposal === undefined) { + // Claim the shared transaction before invoking provider code: a raw + // disposer can synchronously reenter this wrapper through a reference + // retained by its caller, and both calls must join one provider call. + const claimed = Promise.withResolvers() + disposal = claimed.promise try { // Invoke through the captured callable without reading its public // `bind`/`length`/`name` properties. Disposal is the recovery // capability itself; hostile function metadata must not prevent the // seam from exercising it when a later handle field is malformed. - disposal = Promise.resolve(Reflect.apply(inputDispose, acceptedRun, [])) + const returned: unknown = Reflect.apply(inputDispose, acceptedRun, []) + // A raw disposer can reenter the service wrapper and directly return + // that same shared promise. Awaiting it here would make the promise + // depend on itself forever; reject the cyclic provider contract loud. + if (returned === claimed.promise) { + claimed.reject(new TypeError(`subagent provider "${name}" run dispose returned its own wrapper disposal promise`)) + return disposal + } + void Promise.resolve(returned).then( + () => { claimed.resolve(undefined) }, + (error: unknown) => { claimed.reject(error) }, + ) } catch (error: unknown) { - disposal = Promise.reject(error instanceof Error + claimed.reject(error instanceof Error ? error : new Error('subagent provider run dispose threw a non-Error value', { cause: error })) } diff --git a/packages/subagent/subagent/tests/service.spec.ts b/packages/subagent/subagent/tests/service.spec.ts index d1a531ca09..e9b66ce158 100644 --- a/packages/subagent/subagent/tests/service.spec.ts +++ b/packages/subagent/subagent/tests/service.spec.ts @@ -150,6 +150,57 @@ describe('SubagentService', () => { } }) + it('claims wrapper disposal before a raw provider disposer can reenter it', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const observed: { reentrant?: Promise } = {} + const providerDispose = vi.fn(() => { + observed.reentrant = run.dispose() + return Promise.resolve() + }) + ctx.subagents.registerProvider({ + name: 'dispose-reentry', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: () => ({ + id: AgentId('dispose-reentry-child'), + started: Promise.resolve(), + result: Promise.resolve({ output: [], stopReason: 'completed' }), + cancel() {}, + dispose: providerDispose, + }), + }) + const run = ctx.subagents.start('dispose-reentry', baseRequest()) + + const disposal = run.dispose() + + expect(observed.reentrant).toBe(disposal) + await disposal + expect(providerDispose).toHaveBeenCalledOnce() + }) + + it('rejects a raw disposer that directly returns its reentrant wrapper promise instead of hanging', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const providerDispose = vi.fn(() => run.dispose()) + ctx.subagents.registerProvider({ + name: 'dispose-self-cycle', + capabilities: NO_CAPS, + inheritsParentContext: false, + start: () => ({ + id: AgentId('dispose-self-cycle-child'), + started: Promise.resolve(), + result: Promise.resolve({ output: [], stopReason: 'completed' }), + cancel() {}, + dispose: providerDispose, + }), + }) + const run = ctx.subagents.start('dispose-self-cycle', baseRequest()) + + await expect(run.dispose()).rejects.toThrow('run dispose returned its own wrapper disposal promise') + expect(providerDispose).toHaveBeenCalledOnce() + }) + it.each([ { label: 'a non-string name', patch: { name: 42 }, message: 'name must be a string' }, { label: 'null capabilities', patch: { capabilities: null }, message: 'capabilities must be an object' }, diff --git a/packages/workflow/workflow-workerthread/README.md b/packages/workflow/workflow-workerthread/README.md index 1879e60e7e..409ab57132 100644 --- a/packages/workflow/workflow-workerthread/README.md +++ b/packages/workflow/workflow-workerthread/README.md @@ -25,7 +25,7 @@ What the seam guarantees regardless, because benign scripts hit these constantly Inside the worker, `runWorkerSession` builds the execution core (hooks, combinators, concurrency semaphore, caps, fatal-error discipline) over a **child port**. `agent()` sends `child-start`, and the host starts the child through the holder-bound `SubagentService` handle captured synchronously by `start()`, with parent attribution, the shared per-run abort signal, and `outputSchema`/`model` pass-through. This capture is part of the seam's holder-owned lifetime: unloading the engine removes `ctx.workflows` for new calls but does not invalidate an already returned run whose worker starts another child afterward. -The host observes `run.result` immediately but buffers its snapshotted wire projection until `run.started` fulfills. It then replies `child-started` with the child id before forwarding settlement, so `workflow/agent-start` always names a ready child and precedes its end. A readiness rejection replies `child-start-error`, emits no workflow agent pair, and makes the host dispose the attempt because the worker never received a handle; the worker classifies it as fatal `AGENT_START` unless cancellation already owns the run. If readiness fulfills, an infrastructure result rejection crosses as `child-failed`/`AGENT_RESULT` regardless of whether that rejection settled before or after readiness. Child disposal acknowledgements complete the RPC. +The host observes `run.result` immediately but buffers its snapshotted wire projection until `run.started` fulfills. Provider `start()` is arbitrary code and can synchronously reenter workflow cancellation before its returned run reaches the host registry, so the host registers the run, attaches both promise observers, and re-checks admission after `start()` returns and again at readiness. A closed boundary never admits or announces the run to the worker: while the exact run remains registered, the host invokes explicit cancel once and disposes it; `child-start-error` is sent only while worker-message admission remains open. If the run was already retired, the identity guard sends no cleanup through the deleted call ID. An ordinary readiness rejection sends `child-start-error` while possible and disposes the provider attempt without adding an explicit cancellation. Otherwise the host replies `child-started` with the child id before forwarding settlement, so `workflow/agent-start` always names a ready child and precedes its end. The worker classifies a start error as fatal `AGENT_START` unless cancellation already owns the run. If readiness fulfills, an infrastructure result rejection crosses as `child-failed`/`AGENT_RESULT` regardless of whether that rejection settled before or after readiness. Child disposal acknowledgements complete the RPC. Observer narration (`phase`/`log`/`agent-start`/`agent-end`) crosses as messages and re-emits as the seam's `workflow/*` events. A **ready→go handshake** gates the body: a cancellation racing worker boot arrives before `go`, so a run cancelled before start never executes the body at all. @@ -35,9 +35,15 @@ Values LEAVING the script (hook options/schemas, the script's return) are materi ## Cancellation, death, disposal -Per-run limits: a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` posts the cancel to the worker (its hooks start throwing `CANCELLED`; the script dies at its next await) and cancels every host-side child NOW on **both seam channels** — the shared request signal aborts AND each registered child's explicit `cancel()` is called host-side, because the seam leaves a provider free to honor either channel and a worker wedged in a synchronous spin could not relay its own per-child cancel RPCs (those later land as idempotent no-ops). Each provider-owned cancel callback is exception-contained independently, so a broken child cannot prevent peer cancellation or workflow settlement. The caller's optional start-signal callback is retained by exact identity only while the run is live and removed at the first settlement or teardown, so a long-lived signal cannot retain completed `WorkerRun` instances. The grace then arms: a run still unsettled `disposeGraceMs` later force-settles `cancelled` and the worker is **terminated**. A cancellation that lands before the body runs (the ready→go handshake) reports `cancelled` without executing anything; a worker `result` racing an in-flight host cancellation reports `cancelled` too (first-wins settlement — the seam-visible result had not settled when cancellation was requested); post-cancel `phase`/`log` narration is suppressed host-side, while cancelled children still deliver their paired `agent-end`. +Cancellation is bounded and host-driven. Per-run limits are a concurrency semaphore (`maxConcurrentAgents`), a total-`agent()` cap (`maxTotalAgents`), and a per-call item cap (`maxItemsPerCall`), all config. `cancel()` first records its reason, then posts to the worker (its hooks start throwing `CANCELLED`; the script dies at its next await) and cancels every host-side child NOW on **both seam channels**: the shared request signal aborts and each registered child's explicit `cancel()` runs host-side. The seam leaves a provider free to honor either channel, and a worker wedged in a synchronous spin could not relay its own per-child cancel RPCs. A host-side per-call gate turns the worker's later explicit-cancel relay into a no-op, because the seam does not require `SubagentRun.cancel()` to be idempotent. Each explicit child `cancel()` callback is exception-contained independently, post-cancel `phase`/`log` narration is suppressed host-side, and cancelled children still deliver paired `agent-end` events. The caller's optional start-signal callback is retained by exact identity only while the run is live and removed at the first settlement or teardown. -A worker that dies unexpectedly (an OOM, a script reaching `process.exit` through the documented vm escape) settles the run `stopReason: 'error'` with the exit diagnostics — or `'cancelled'` when a cancel was in flight — and the host-side child registry is what winds every surviving child down. `dispose()` = cancel + immediate host-driven disposal of every registered child (a wedged worker can relay no dispose RPC, so child teardown overlaps the grace instead of starting after it; the worker's own dispose RPCs join the same per-child disposal) + bounded wait (result, then child-registry quiescence, capped by the grace) + unconditional `worker.terminate()`: the thread never outlives its run. Before an ordinary run settlement becomes observable, the host cancels every stray child on both channels too—even a fire-and-forget run still waiting on `started`, for which the worker has no handle yet—and `dispose()` then waits for their disposal (bounded by the grace) before returning. `agent-start`/`agent-end` pairing is host-guaranteed the same way: forwarded starts live in a ledger, worker-reported ends pair them on the graceful paths, and the termination paths (grace force-settle, worker death) synthesize the missing ends (outcome `cancelled`) before the run settles — a start still in flight across the force-settle can surface after `workflow/end`, immediately paired the same way. +Terminal arbitration is first-wins at explicit host-side claim points. A cancellation before ready→go reports `cancelled` without executing the body. For a later race, the worker queues Result before its settlement-reap `ChildCancel` messages; external `cancel()` records its reason before its fanout, while Result receipt snapshots any earlier cancellation and records the terminal outcome before settlement-cleanup fanout. Same-port FIFO and those claim points mean earlier caller/signal/dispose cancellation overrides a non-cancelled report, while an arrived report cannot be rewritten by a cleanup callback. Once Result has won, a losing reentrant `cancel()` has no state, message, child-fanout, or grace-timer effect. If no earlier terminal source settles the run, the grace callback claims `cancelled`, synthesizes missing lifecycle ends, settles the result, and terminates the worker after `disposeGraceMs`. + +Worker death separates outcome ownership, message admission, and resource cleanup. An unexpected OOM, `error`, message failure, or premature exit claims `stopReason: 'error'` with diagnostics—or preserves an external cancellation already in flight—before reaping children or synthesizing observer events. Reentrant provider cancellation therefore cannot turn a death-first error into cancellation. The first death signal also closes worker-message admission because Node may deliver a queued `message` between `error` and `exit`; late protocol data cannot start a child, emit narration, or compete with the outcome. If Result or grace already claimed the outcome, death preserves it while still reaping promptly. The eventual `exit` then performs a final disposal-only sweep, joining any in-flight disposal without repeating explicit child cancellation. This separation lets grace settlement become observable before `worker.terminate()` reports exit without leaking the host-side registry. + +Disposal is the holder's bounded resource guarantee: cancel, begin host-driven disposal of every registered child immediately, wait for result plus child-registry quiescence up to the same grace, and unconditionally terminate the worker. `handle.dispose()` claims its public promise before that traversal invokes cancellation or disposal callbacks. Independently, every `disposeChild` path claims the call ID's promise before invoking the wrapped child disposer. Public-first reentry therefore returns the existing holder promise; worker-first reentry may begin holder disposal, whose child traversal joins the already-claimed call ID promise. Neither order can start a second provider disposal. A wedged worker can relay no dispose RPC, so host-driven teardown overlaps the grace; any later worker RPC joins the same per-child disposal. Before ordinary settlement becomes observable, the host also cancels every stray on both channels, including a fire-and-forget run still waiting on readiness. That work is settlement-only cleanup after the terminal claim, so provider reentry cannot rewrite the chosen result; `dispose()` then waits for its completion within the bound. + +Lifecycle pairing is host-guaranteed independently of outcome arbitration. Forwarded starts live in a ledger and worker-reported ends pair them on graceful paths. When death or grace is the terminal source, the host synthesizes missing ends with outcome `cancelled` before `workflow/end`. If Result settled first, later death cleanup may synthesize a survivor's end afterward; a start already crossing force-settlement may likewise surface after `workflow/end`. The same ledger still pairs every forwarded start exactly once. **Engine-specific limitations**: worker startup is paid per run; on a termination path `agentsStarted` reports the HOST-observed count (accepted `child-start`s — calls still queued worker-side for a concurrency slot are unknowable then); and a returned promise or thenable resolves per JavaScript semantics BEFORE materialization — that is what makes an un-awaited `return agent('x')` work — with the value-boundary guard applying to the resolution. diff --git a/packages/workflow/workflow-workerthread/src/host.ts b/packages/workflow/workflow-workerthread/src/host.ts index 8c839fbccb..7e87c14fae 100644 --- a/packages/workflow/workflow-workerthread/src/host.ts +++ b/packages/workflow/workflow-workerthread/src/host.ts @@ -7,19 +7,31 @@ * run. * * The run's `result` promise settles exactly once, from whichever of these - * lands first: the worker's `result` message (a host-side cancellation in - * flight overrides a non-cancelled report — the seam-visible result had not - * settled when cancellation was requested), an unexpected worker death - * (`error`/`messageerror`/premature `exit` → `stopReason: 'error'`, or - * `'cancelled'` when a cancel was in flight), or the post-cancel grace timer - * (a script that never settles is force-settled `cancelled` and its worker - * terminated — the real kill an in-process engine could not perform). + * lands first: receipt of the worker's `result` message, an unexpected worker + * death (`error`/`messageerror`/premature `exit` → `stopReason: 'error'`, or + * `'cancelled'` when a cancel was in flight), or the post-cancel grace timer (a + * script that never settles is force-settled `cancelled` and its worker + * terminated — the real kill an in-process engine could not perform). At + * `result` receipt the host snapshots whether caller/signal/dispose + * cancellation is already in flight: an earlier cancellation overrides a + * non-cancelled report; otherwise the report wins before settlement-only child + * cleanup invokes arbitrary provider callbacks. Worker death uses the same + * boundary: it claims `error` (or a previously requested `cancelled`) before + * reaping children, so cleanup callbacks cannot rewrite the outcome. That + * first signal also closes inbound message admission: Node may emit `error`, + * then deliver queued messages, then emit `exit`, but those late messages may + * neither create work nor narrate after settlement. If Result or grace already + * owns the outcome, death preserves it while still cleaning resources; the + * eventual exit performs a final disposal-only sweep without repeating child + * cancellation. * * Children live in a host-side registry (callId → run) as soon as the provider * accepts them, so cancellation reaches even a pre-publication attempt. Both * explicit run cancellation and the shared request signal are driven when the * workflow is cancelled OR normally settles, so a fire-and-forget child cannot - * survive merely by honoring only one channel. The host observes `result` + * survive merely by honoring only one channel. A per-call gate invokes each + * explicit provider `cancel()` at most once even though host fanout and the + * worker's later relay can both request it. The host observes `result` * immediately but acknowledges the child to the worker only after `started` * fulfills; readiness failure is a start error and the host disposes the * attempt because the worker never received a handle. The @@ -31,10 +43,12 @@ * paths share ONE disposal per child (memoized by callId; the seam's * dispose() is idempotent anyway, the memo keeps the bookkeeping and the * containment warn single). Lifecycle pairing is host-guaranteed the same - * way: every forwarded `agent-start` lives in a ledger, and a start the - * dead or terminated worker never paired is closed by a synthesized - * `agent-end` (outcome `'cancelled'`) before the run settles. On a - * termination path `agentsStarted` reports the + * way: every forwarded `agent-start` lives in a ledger, and a start the dead + * or terminated worker never paired is closed exactly once by a synthesized + * `agent-end` (outcome `'cancelled'`). When death or grace is the terminal + * source, already-known pairs close before the run settles; cleanup after an + * earlier Result can close a survivor afterward. On a termination path + * `agentsStarted` reports the * HOST-observed count (accepted `child-start` messages) — `agent()` calls * still queued worker-side for a concurrency slot are unknowable then; the * worker's own count rides the result message on every graceful path. @@ -132,6 +146,10 @@ export class WorkerRun implements WorkflowRun { readonly result: Promise private settleResolve!: (result: WorkflowResult) => void private settled = false + /** A Result/death/grace outcome atomically won before teardown callbacks. */ + private terminalClaimed = false + /** The first death signal closes worker-message admission and owns failure-time cleanup. */ + private workerDeathObserved = false private cancelReason: string | undefined private graceTimer: NodeJS.Timeout | undefined private readonly worker: Worker @@ -143,6 +161,8 @@ export class WorkerRun implements WorkflowRun { private readonly children = new Map() /** In-flight child disposals by callId — the memo that gives every path (worker RPC, dispose(), reap) ONE shared disposal per child. */ private readonly childDisposals = new Map>() + /** callIds whose explicit provider cancel callback has already been invoked. */ + private readonly childCancellations = new Set() /** Started-but-not-ended agents by seq — the pairing ledger the HOST guarantees (see {@link endAgent}). */ private readonly liveAgents = new Map() private readonly quiescenceWaiters: (() => void)[] = [] @@ -172,12 +192,12 @@ export class WorkerRun implements WorkflowRun { const { entry, options } = resolveWorkerSpawn(init) this.worker = new Worker(entry, options) this.worker.on('message', (message: WorkerToHostMessage) => { this.onMessage(message) }) - this.worker.on('error', (error) => { this.onWorkerDeath(`workflow worker failed: ${renderThrown(error)}`) }) + this.worker.on('error', (error) => { this.onWorkerDeath(`workflow worker failed: ${renderThrown(error)}`, false) }) /* v8 ignore next -- messageerror: not constructible from the engine's own protocol (every payload is JSON data) */ - this.worker.on('messageerror', (error) => { this.onWorkerDeath(`workflow worker message failed to deserialize: ${renderThrown(error)}`) }) + this.worker.on('messageerror', (error) => { this.onWorkerDeath(`workflow worker message failed to deserialize: ${renderThrown(error)}`, false) }) this.worker.on('exit', (code) => { this.workerGone = true - this.onWorkerDeath(`workflow worker exited before the run settled (exit code ${code})`) + this.onWorkerDeath(`workflow worker exited before the run settled (exit code ${code})`, true) }) if (signal?.aborted) { this.cancel('workflow start signal already aborted') @@ -205,18 +225,24 @@ export class WorkerRun implements WorkflowRun { * @param reason - human-readable cause (default `'workflow cancelled'`). */ cancel(reason?: string): void { - // A settled run has nothing left to cancel: without this guard the + // A settled run has nothing left to cancel, and a terminal source claimed + // before its cleanup callbacks must exclude cancellation reentered by one + // of those callbacks. Without the settled guard the // ordinary consumer path (await result, then dispose -> cancel) would arm // a grace timer nothing ever clears, pinning the run and its Worker // closure until the grace expires - a bounded leak per completed run. - if (this.settled || this.cancelReason !== undefined) return + if (this.settled || this.terminalClaimed || this.cancelReason !== undefined) return this.cancelReason = reason ?? 'workflow cancelled' this.post(HostToWorkerType.Cancel, { reason: this.cancelReason }) // The explicit channel is driven host-side, not left to the worker: a // provider honoring only run.cancel() must not wait on a wedged worker's - // ChildCancel relay (those later RPCs land as idempotent no-ops). + // ChildCancel relay (the per-call cancellation gate makes those later + // RPCs no-ops without imposing idempotence on the provider). this.cancelChildren(this.cancelReason) this.graceTimer = setTimeout(() => { + // Cancellation already owns the race through cancelReason; close the + // terminal boundary explicitly before observer teardown callbacks. + this.terminalClaimed = true // The worker may no longer speak (it is about to be terminated): pair // every stranded start before the run settles, so ends precede // workflow/end. @@ -244,7 +270,13 @@ export class WorkerRun implements WorkflowRun { * @returns resolves when the run's resources are released or abandoned. */ dispose(): Promise { - this.disposed ??= (async () => { + if (this.disposed !== undefined) return this.disposed + // Claim the public transaction BEFORE its body invokes child/provider + // disposal. A raw provider callback can reenter handle.dispose(); it must + // join this promise rather than start a second traversal. + const claimed = Promise.withResolvers() + this.disposed = claimed.promise + void (async () => { this.detachInputSignal() this.cancel('workflow disposed') for (const [callId, run] of [...this.children]) void this.disposeChild(callId, run) @@ -257,13 +289,17 @@ export class WorkerRun implements WorkflowRun { ]) await this.worker.terminate() this.reapChildren('workflow disposed') - })() + })().then( + () => { claimed.resolve(undefined) }, + /* v8 ignore next -- result/quiescence never reject and Worker.terminate is the only external promise */ + (error: unknown) => { claimed.reject(error) }, + ) return this.disposed } /** Post one message to the worker (payload looked up from the tag's map entry), tolerating a thread that is already gone. */ private post(type: T, payload: HostToWorkerPayloads[T]): void { - if (this.workerGone) return + if (this.workerGone || this.workerDeathObserved) return try { this.worker.postMessage({ type, ...payload }) } catch (error: unknown) { @@ -276,6 +312,11 @@ export class WorkerRun implements WorkflowRun { } private onMessage(message: WorkerToHostMessage): void { + // Node may emit `error`, then deliver an already-queued `message`, then + // emit `exit`. The first death signal is the host's logical delivery + // barrier: nothing arriving afterward may create a child, narrate after + // workflow/end, or compete with the chosen outcome. + if (this.workerDeathObserved) return switch (message.type) { case WorkerToHostType.Ready: this.post(HostToWorkerType.Go, {}) @@ -308,7 +349,7 @@ export class WorkerRun implements WorkflowRun { case WorkerToHostType.ChildCancel: { const run = this.children.get(message.callId) - if (run !== undefined) this.cancelChild(run, message.reason) + if (run !== undefined) this.cancelChild(message.callId, run, message.reason) } break case WorkerToHostType.ChildDispose: @@ -323,12 +364,27 @@ export class WorkerRun implements WorkflowRun { } } - private onChildStart(callId: number, request: ChildStartRequest): void { + /** Why a child may no longer cross the provider readiness boundary. */ + private childAdmissionFailure(): { reason: string; rendered: string } | undefined { if (this.cancelReason !== undefined) { - // The worker's start raced our cancel: refuse — a child must never - // start on an already-aborted signal (a provider subscribing only to - // future abort events would never observe it). - this.post(HostToWorkerType.ChildStartError, { callId, rendered: `workflow run cancelled: ${this.cancelReason}` }) + return { reason: this.cancelReason, rendered: `workflow run cancelled: ${this.cancelReason}` } + } + if (this.workerDeathObserved) { + return { reason: 'workflow worker gone', rendered: 'workflow worker is no longer available' } + } + if (this.terminalClaimed) { + return { reason: 'workflow settled', rendered: 'workflow run already settled' } + } + return undefined + } + + private onChildStart(callId: number, request: ChildStartRequest): void { + const initialFailure = this.childAdmissionFailure() + if (initialFailure !== undefined) { + // Refuse after a terminal boundary: a child must never start on an + // already-aborted signal (a provider subscribing only to future abort + // events would never observe it). + this.post(HostToWorkerType.ChildStartError, { callId, rendered: initialFailure.rendered }) return } this.hostStarted += 1 @@ -382,22 +438,54 @@ export class WorkerRun implements WorkflowRun { }, ) - // The provider owns the publication boundary. Only acknowledge the child - // after it is real, then flush any result that settled unusually early. A - // readiness rejection is a START failure, not AGENT_RESULT: the worker - // never receives a handle, so the host must also dispose the registered - // attempt. A concurrent host disposal may already have removed it; the - // identity guard preserves the one-disposal memo in that race. + // The provider owns the publication boundary. Observe both promises before + // invoking cancellation/disposal below: provider.start() itself is + // arbitrary code and may have reentered handle.cancel() before the returned + // run reached our registry. Exactly one branch answers this ChildStart. + let startReplySent = false + const refusePublication = (failure: { reason: string; rendered: string }): void => { + startReplySent = true + this.post(HostToWorkerType.ChildStartError, { callId, rendered: failure.rendered }) + // A prior dispose/death can finish and remove this run while readiness + // is still pending. In that case teardown already owned cancellation and + // disposal; touching the retired callId would repeat cancel and orphan a + // fresh gate entry after finishChild deleted it. + if (this.children.get(callId) !== run) return + this.cancelChild(callId, run, failure.reason) + void this.disposeChild(callId, run) + } + + // Only acknowledge the child after it is real, then flush any result that + // settled unusually early. Re-check admission at that exact boundary: a + // cancellation while readiness was pending is a refusal, not a late + // publication into a terminal workflow. A readiness rejection is a START + // failure, not AGENT_RESULT; the worker never receives a handle, so the + // host disposes the registered attempt. Identity guards preserve the one + // disposal memo against concurrent host teardown. void run.started.then( () => { + if (startReplySent) return + const failure = this.childAdmissionFailure() + if (failure !== undefined) { + refusePublication(failure) + return + } + startReplySent = true this.post(HostToWorkerType.ChildStarted, { callId, childId }) void forwardResult.then((forward) => { forward() }) }, (error: unknown) => { + if (startReplySent) return + startReplySent = true this.post(HostToWorkerType.ChildStartError, { callId, rendered: renderThrown(error) }) if (this.children.get(callId) === run) void this.disposeChild(callId, run) }, ) + + // Close the synchronous hole around provider.start(): cancel()/dispose() + // can run before the returned run is visible to their children loop. + const reentrantFailure = this.childAdmissionFailure() + if (reentrantFailure !== undefined) refusePublication(reentrantFailure) } private onChildDispose(callId: number): void { @@ -427,17 +515,26 @@ export class WorkerRun implements WorkflowRun { private disposeChild(callId: number, run: SubagentRun): Promise { let disposal = this.childDisposals.get(callId) if (disposal === undefined) { + // Claim before run.dispose() invokes provider code. Reentrant holder + // disposal then joins this exact child transaction instead of entering + // the provider wrapper twice before either memo is installed. + const claimed = Promise.withResolvers() + disposal = claimed.promise + this.childDisposals.set(callId, disposal) // The seam promises a Promise, but invoke inside an async boundary so a // contract-violating synchronous throw is contained exactly like a // rejected disposal and cannot break host quiescence. - disposal = (async () => { await run.dispose() })().then( - () => { this.finishChild(callId) }, + void (async () => { await run.dispose() })().then( + () => { + this.finishChild(callId) + claimed.resolve(undefined) + }, (error: unknown) => { this.ctx.logger.warn(`workflow-workerthread: child dispose failed: ${renderThrown(error)}`) this.finishChild(callId) + claimed.resolve(undefined) }, ) - this.childDisposals.set(callId, disposal) } return disposal } @@ -446,6 +543,7 @@ export class WorkerRun implements WorkflowRun { private finishChild(callId: number): void { this.children.delete(callId) this.childDisposals.delete(callId) + this.childCancellations.delete(callId) if (this.children.size === 0) { for (const waiter of this.quiescenceWaiters.splice(0)) waiter() } @@ -469,11 +567,16 @@ export class WorkerRun implements WorkflowRun { /** Drive both cancellation channels for every child already accepted by the host. */ private cancelChildren(reason: string): void { this.controller.abort(reason) - for (const run of this.children.values()) this.cancelChild(run, reason) + for (const [callId, run] of this.children) this.cancelChild(callId, run, reason) } - /** Contain one provider-owned cancel callback so every peer still receives cancellation. */ - private cancelChild(run: SubagentRun, reason?: string): void { + /** Invoke one provider-owned cancel callback at most once and contain its exception. */ + private cancelChild(callId: number, run: SubagentRun, reason?: string): void { + // Host fanout and the worker's FIFO-later ChildCancel relay are two paths + // to the same provider callback. The seam does not require cancel() to be + // idempotent, so claim the callId before invoking arbitrary provider code. + if (this.childCancellations.has(callId)) return + this.childCancellations.add(callId) try { run.cancel(reason) } catch (error: unknown) { @@ -482,12 +585,30 @@ export class WorkerRun implements WorkflowRun { } private onResult(result: WorkflowResult): void { + // The owned worker session sends one Result. Keep a late duplicate or a + // Result queued behind another terminal source completely side-effect-free. + if (this.terminalClaimed) return + // First-wins is decided when the Result message reaches the host. If no + // external cancellation was already in flight, this result won. Reaping a + // stray child below may synchronously reenter cancel() through provider + // callbacks, but that internal post-result cleanup must not retroactively + // rewrite the worker result that arrived first. + const cancellationWasRequested = this.cancelReason !== undefined + // Claim before either settlement-cleanup cancellation channel invokes + // provider code. A provider callback can reenter cancel() synchronously or + // from a queued microtask; once Result won, that losing cancellation must + // have no state, message, child-fanout, or grace-timer side effects. + this.terminalClaimed = true // The worker cancels handles it already received, but a fire-and-forget // child may still be waiting on readiness and therefore have no worker // handle. Drive BOTH provider-permitted channels from the host before the // workflow becomes externally settled. - if (this.cancelReason === undefined) this.cancelChildren('workflow settled') - if (this.cancelReason !== undefined && result.stopReason !== 'cancelled') { + if (!cancellationWasRequested) { + this.cancelChildren('workflow settled') + this.settleResult(result) + return + } + if (result.stopReason !== 'cancelled') { // The script settled while our cancel was crossing the thread boundary // — the seam-visible result had NOT settled when cancellation was // requested, so report cancelled (the vm drive()'s post-settle check, @@ -498,21 +619,39 @@ export class WorkerRun implements WorkflowRun { this.settleResult(result) } - /** An unexpected worker death (or the expected exit after termination). */ - private onWorkerDeath(message: string): void { - // Whatever the worker left behind must not leak — abort + dispose it all. - if (this.children.size > 0) this.reapChildren('workflow worker gone') - // The thread is gone: no more worker-authored agent-ends can arrive — - // pair every stranded start (a start that crossed between the grace - // force-settle and this exit included) before the run settles. - this.endStrandedAgents() - // settleResult no-ops on an already-settled run (the expected exit after - // a dispose's terminate lands here too). - if (this.cancelReason !== undefined) { - this.settleResult(this.cancelledResult(this.hostStarted)) - return + /** Process an error/messageerror/exit signal; `exit` also performs the final disposal sweep. */ + private onWorkerDeath(message: string, isExit: boolean): void { + if (!this.workerDeathObserved) { + // Close message admission BEFORE cleanup callbacks: Node can deliver a + // message queued before the crash after its `error` event. Treating the + // first death signal as a logical barrier prevents that late message + // from creating work or narrating after workflow/end. + this.workerDeathObserved = true + const outcomeWasClaimed = this.terminalClaimed + const cancellationWasRequested = this.cancelReason !== undefined + // When death is itself the terminal source, claim BEFORE child reap or + // synthesized observer callbacks. Either can reenter cancel(); a death + // that arrived first remains an error, while a cancellation already + // accepted before death remains cancelled. If Result/grace already won, + // preserve it while still performing prompt failure-time cleanup. + if (!outcomeWasClaimed) this.terminalClaimed = true + if (this.children.size > 0) this.reapChildren('workflow worker gone') + this.endStrandedAgents() + if (!outcomeWasClaimed) { + if (cancellationWasRequested) { + this.settleResult(this.cancelledResult(this.hostStarted)) + } else { + this.settleResult({ value: null, stopReason: 'error', error: message, agentsStarted: this.hostStarted }) + } + } } - this.settleResult({ value: null, stopReason: 'error', error: message, agentsStarted: this.hostStarted }) + if (!isExit) return + // `error` is not Node's physical delivery barrier: a queued message may + // precede `exit`. Admission is already closed, so this final sweep only + // joins/starts disposal for registry survivors; it deliberately does not + // repeat explicit provider cancellation. + for (const [callId, run] of [...this.children]) void this.disposeChild(callId, run) + this.endStrandedAgents() } /** @@ -531,11 +670,14 @@ export class WorkerRun implements WorkflowRun { /** * Synthesize the missing `agent-end` for every started-but-unpaired agent, * outcome `'cancelled'`: the reap cancels every child, and a real - * settlement racing the force-settle loses to the cancellation — the same - * first-wins override {@link onResult} applies to the run's own result. + * settlement racing the force-settle loses to that already-started external + * cancellation. The atomic terminal boundaries in {@link onResult} and + * {@link onWorkerDeath} deliberately exclude teardown callbacks as contenders. * Called where the worker can no longer speak (the grace force-settle, - * worker death), BEFORE settleResult, so the paired ends reach observers - * before `workflow/end`. + * worker death, physical exit). When grace/death is the terminal source it + * runs before settleResult, so already-known pairs precede `workflow/end`; + * after an earlier Result, exit cleanup may close a survivor afterward. + * The ledger preserves exactly-once pairing in both orders. */ private endStrandedAgents(): void { for (const info of [...this.liveAgents.values()]) { @@ -563,7 +705,11 @@ export class WorkerRun implements WorkflowRun { /** First settle wins; disarms the grace timer and releases the caller signal. */ private settleResult(result: WorkflowResult): void { + // Every current terminal source claims ownership before calling here; keep + // the fallback local so a future caller cannot resolve twice. + /* v8 ignore next -- defensive fallback outside the claimed state machine */ if (this.settled) return + this.terminalClaimed = true this.settled = true this.detachInputSignal() clearTimeout(this.graceTimer) diff --git a/packages/workflow/workflow-workerthread/src/runtime.ts b/packages/workflow/workflow-workerthread/src/runtime.ts index 2add6d537c..9b324c1118 100644 --- a/packages/workflow/workflow-workerthread/src/runtime.ts +++ b/packages/workflow/workflow-workerthread/src/runtime.ts @@ -83,7 +83,9 @@ function defaultLabel(prompt: string): string { /** * One live script execution inside the worker. Constructed per run by the * session; `drive()` is called exactly once and NEVER rejects — every failure - * becomes a {@link WorkflowResult} with a non-`completed` stop reason. + * becomes a {@link WorkflowResult} with a non-`completed` stop reason. After + * the session publishes that result it calls {@link reapAfterResult} exactly + * once to cancel any dropped child work without racing terminal publication. */ export class WorkflowExecution { /** 1-based count of `agent()` calls started (the `agentsStarted` result field). */ @@ -171,7 +173,8 @@ export class WorkflowExecution { * worker. Idempotent; the first reason wins. * @param reason - human-readable cause, carried on the CANCELLED error and * into child cancel RPCs. Required: every caller (the session's cancel - * message, drive()'s settle-reap) has a concrete reason. + * message and its post-result {@link reapAfterResult} call) has a concrete + * reason. */ cancel(reason: string): void { if (this.cancelReason !== undefined) return @@ -185,8 +188,9 @@ export class WorkflowExecution { * Run the script to settlement. Resolves — never rejects — with the run's * {@link WorkflowResult}: the materialized return value on `completed`, the * failure message on `error`, and `cancelled` when the script died of - * cancellation. After settlement, any stray children a script fired without - * awaiting are cancelled (their `agent()` wrappers dispose them via RPC). + * cancellation. This method only chooses the result; the session must publish + * it and then call {@link reapAfterResult}, so the terminal message precedes + * settlement-only child cancellation on the worker-to-host FIFO channel. * @returns the settled outcome — this promise NEVER rejects (the seam's * `result`-never-rejects contract); every failure maps to a variant. */ @@ -214,15 +218,19 @@ export class WorkflowExecution { // cannot throw — drive() resolving is the `result` never-rejects seam // contract. return { value: null, stopReason: 'error', error: renderThrown(error), agentsStarted: this.started } - } finally { - // Reap strays: a script that fired agent() calls without awaiting them - // leaves live children behind after settlement — cancel them all. (The - // per-call wrappers dispose each child; the contain() consumer keeps - // their rejections from going unhandled.) - if (this.cancelReason === undefined) this.cancel('workflow settled') } } + /** + * Reap strays only after the caller publishes the chosen terminal result. + * Aborting the controller synchronously sends child-cancel RPCs, so calling + * this before publication would let a provider callback reenter host + * cancellation and misclassify a result the script had already chosen. + */ + reapAfterResult(): void { + if (this.cancelReason === undefined) this.cancel('workflow settled') + } + /** * Attach a no-op rejection consumer WITHOUT changing what the caller * receives: if the script drops the promise (no await), cancellation cannot diff --git a/packages/workflow/workflow-workerthread/src/session.ts b/packages/workflow/workflow-workerthread/src/session.ts index b159892021..f6b14f0fca 100644 --- a/packages/workflow/workflow-workerthread/src/session.ts +++ b/packages/workflow/workflow-workerthread/src/session.ts @@ -14,6 +14,11 @@ * A `cancel` arriving instead of `go` still releases the gate: `drive()` * sees the cancelled state and settles without running the body. * + * Terminal ordering is Result first, settlement cleanup second. The session + * queues the Result message before asking the execution to reap stray children; + * MessagePort FIFO therefore lets the host atomically claim the result before a + * cleanup ChildCancel can invoke arbitrary provider code. + * * @module @deepseek-ai/dsh-workflow-workerthread/session */ @@ -208,5 +213,12 @@ export async function runWorkerSession(port: MessagePort, init: WorkerInit): Pro post(WorkerToHostType.Ready, {}) await gate.promise const result = await execution.drive() - post(WorkerToHostType.Result, { result }) + try { + // This post is the worker's terminal claim. Queue it BEFORE aborting stray + // children: MessagePort FIFO then guarantees the host claims Result before + // any settlement-only ChildCancel can invoke arbitrary provider callbacks. + post(WorkerToHostType.Result, { result }) + } finally { + execution.reapAfterResult() + } } diff --git a/packages/workflow/workflow-workerthread/tests/session.spec.ts b/packages/workflow/workflow-workerthread/tests/session.spec.ts index 00051ad56a..e2dab8948f 100644 --- a/packages/workflow/workflow-workerthread/tests/session.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/session.spec.ts @@ -281,6 +281,36 @@ describe('runWorkerSession over an in-process MessageChannel', () => { } }) + it('queues Result before settlement-only cancellation of a ready stray', async () => { + const host = fakeHost({ manual: true }) + const session = runWorkerSession(host.port, init(` + agent('ready stray') + return await agent('gate') + `)) + await vi.waitFor(() => { expect(host.ofType(WorkerToHostType.ChildStart)).toHaveLength(2) }) + const starts = host.ofType(WorkerToHostType.ChildStart) + const stray = starts.find(message => message.request.prompt === 'ready stray')! + const gate = starts.find(message => message.request.prompt === 'gate')! + host.send({ type: HostToWorkerType.ChildStarted, callId: stray.callId, childId: 'stray-child' }) + host.send({ type: HostToWorkerType.ChildStarted, callId: gate.callId, childId: 'gate-child' }) + host.send({ type: HostToWorkerType.ChildSettled, callId: gate.callId, result: text('gate completed') }) + + const result = await host.result() + await session + await vi.waitFor(() => { + expect(host.ofType(WorkerToHostType.ChildCancel).map(message => message.callId)).toContain(stray.callId) + }) + + expect(result).toMatchObject({ value: 'gate completed', stopReason: 'completed', agentsStarted: 2 }) + const resultIndex = host.messages.findIndex(message => message.type === WorkerToHostType.Result) + const strayCancelIndex = host.messages.findIndex(message => + message.type === WorkerToHostType.ChildCancel && message.callId === stray.callId) + expect(resultIndex).toBeGreaterThanOrEqual(0) + expect(strayCancelIndex).toBeGreaterThan(resultIndex) + host.send({ type: HostToWorkerType.ChildSettled, callId: stray.callId, result: { output: [], stopReason: 'aborted' } }) + host.close() + }) + it('an unparseable body settles an error result instead of dying without one (host pre-parse skew guard)', async () => { const host = fakeHost() await runWorkerSession(host.port, init('return (((')) diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index 641b26518d..9e37e0bbed 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -1,5 +1,6 @@ import { describe, expect, it, vi } from 'vitest' import { fileURLToPath } from 'node:url' +import type { Worker } from 'node:worker_threads' import { Context } from 'cordis' import Loader from '@cordisjs/plugin-loader' import { AgentId } from '@deepseek-ai/dsh-agent' @@ -8,7 +9,7 @@ import SubagentService from '@deepseek-ai/dsh-subagent' import type { SubagentCapabilities, SubagentProvider, SubagentResult, SubagentRun, SubagentStartRequest } from '@deepseek-ai/dsh-subagent' import type { WorkflowMeta, WorkflowResult, WorkflowResultInfo, WorkflowRunInfo } from '@deepseek-ai/dsh-workflow' import * as workerEngineModule from '../src/index.ts' -import WorkerWorkflowEngine, { HostToWorkerType, type Config } from '../src/index.ts' +import WorkerWorkflowEngine, { HostToWorkerType, WorkerToHostType, type Config } from '../src/index.ts' /** A minimal parent stand-in: the engine only threads it through to the provider. */ function fakeParent(): Agent { @@ -74,6 +75,8 @@ class StubProvider implements SubagentProvider { private readonly reply?: (request: SubagentStartRequest, index: number) => SubagentResult, private readonly disposeDelayMs = 0, private readonly deferStart = false, + private readonly onCancel?: (reason: string | undefined, index: number) => void, + private readonly onSignalAbort?: (reason: unknown, index: number) => void, ) {} start(request: SubagentStartRequest): SubagentRun { @@ -91,7 +94,10 @@ class StubProvider implements SubagentProvider { } this.runs.push(controlled) const index = this.runs.length - 1 - request.signal?.addEventListener('abort', () => { terminal.resolve({ output: [], stopReason: 'aborted' }) }, { once: true }) + request.signal?.addEventListener('abort', () => { + this.onSignalAbort?.(request.signal?.reason, index) + terminal.resolve({ output: [], stopReason: 'aborted' }) + }, { once: true }) if (!this.deferStart) readiness.resolve(undefined) if (this.reply) { const reply = this.reply @@ -103,6 +109,7 @@ class StubProvider implements SubagentProvider { result: terminal.promise, cancel: (reason?: string) => { controlled.cancelled = reason ?? 'cancelled' + this.onCancel?.(reason, index) terminal.resolve({ output: [], stopReason: 'aborted' }) }, dispose: () => { @@ -133,6 +140,8 @@ interface SetupOptions { manual?: boolean disposeDelayMs?: number deferStart?: boolean + onChildCancel?: (reason: string | undefined, index: number) => void + onChildSignalAbort?: (reason: unknown, index: number) => void } async function setup(options?: SetupOptions) { @@ -143,6 +152,8 @@ async function setup(options?: SetupOptions) { options?.manual ? undefined : options?.reply ?? (() => text('stub reply')), options?.disposeDelayMs ?? 0, options?.deferStart ?? false, + options?.onChildCancel, + options?.onChildSignalAbort, ) ctx.subagents.registerProvider(provider) // A fixed concurrency ceiling: the auto-resolved default is machine-derived @@ -821,6 +832,153 @@ describe('dsh-workflow-workerthread', () => { expect(provider.runs[0]!.disposeCalls).toBe(1) }) + it('post-result child cleanup cannot reentrantly rewrite a completed workflow as cancelled', async () => { + let cancelCallbacks = 0 + let signalCallbacks = 0 + const { ctx, parent, provider } = await setup({ + manual: true, + deferStart: true, + onChildCancel: () => { + cancelCallbacks += 1 + // The first callback is host cleanup for the already-arrived Result. + // Reentering cancel() here is later than that message and must not + // retroactively win the result race. Its nested child cancel is + // intentionally ignored to keep the adversarial callback finite. + if (cancelCallbacks === 1) handle.cancel('reentrant child cleanup') + }, + onChildSignalAbort: () => { + signalCallbacks += 1 + handle.cancel('reentrant signal cleanup') + }, + }) + const handle = ctx.workflows.start({ + ...scripted(` + agent('readiness-pending stray') + return 'completed first' + `), + parent, + }) + + const result = await handle.result + + expect(result).toMatchObject({ value: 'completed first', stopReason: 'completed', agentsStarted: 1 }) + expect(signalCallbacks).toBe(1) + expect(cancelCallbacks).toBe(1) + // Readiness crossing after Result is a terminal-admission refusal: no + // ChildStarted/lifecycle publication, and host-owned disposal begins. + provider.runs[0]!.publish() + await waitFor(() => { expect(provider.runs[0]!.disposed).toBe(true) }, 1000) + expect(cancelCallbacks).toBe(1) + await handle.dispose() + await ctx.fiber.dispose() + }) + + it('late readiness after completed disposal cannot cancel or dispose the retired child twice', async () => { + let explicitCancels = 0 + const lifecycle: string[] = [] + const { ctx, parent, provider } = await setup({ + manual: true, + deferStart: true, + onChildCancel: () => { explicitCancels += 1 }, + }) + ctx.on('workflow/agent-start', () => { lifecycle.push('start') }) + ctx.on('workflow/agent-end', () => { lifecycle.push('end') }) + const handle = ctx.workflows.start({ + ...scripted("agent('retired readiness')\nreturn 'done'"), + parent, + }) + + await expect(handle.result).resolves.toMatchObject({ stopReason: 'completed' }) + expect(explicitCancels).toBe(1) + await handle.dispose() + expect(provider.runs[0]!.disposed).toBe(true) + expect(provider.runs[0]!.disposeCalls).toBe(1) + + // The Promise may still fulfill after its run left every host ledger. + // Refusal replies once but must not recreate the deleted cancel gate. + provider.runs[0]!.publish() + await Promise.resolve() + await Promise.resolve() + expect(explicitCancels).toBe(1) + expect(provider.runs[0]!.disposeCalls).toBe(1) + expect(lifecycle).toEqual([]) + await ctx.fiber.dispose() + }) + + it.each([ + ['synchronous', (cancel: () => void) => { cancel() }], + ['microtask', (cancel: () => void) => { queueMicrotask(cancel) }], + ])('a ready stray %s cleanup callback cannot beat the earlier worker result claim', async (_mode, reenter) => { + let reentered = false + const explicitCancels = new Map() + const { ctx, parent, provider } = await setup({ + manual: true, + onChildCancel: (_reason, index) => { + explicitCancels.set(index, (explicitCancels.get(index) ?? 0) + 1) + if (index !== 0 || reentered) return + reentered = true + reenter(() => { handle.cancel('reentered from child cleanup') }) + }, + }) + const handle = ctx.workflows.start({ + ...scripted(` + agent('ready stray') + return await agent('gate') + `), + parent, + }) + const cancelChildSpy = vi.spyOn(handle as unknown as { + cancelChild(callId: number, run: SubagentRun, reason?: string): void + }, 'cancelChild') + await waitFor(() => { expect(provider.runs).toHaveLength(2) }) + provider.runs[1]!.settle(text('gate completed')) + + const result = await handle.result + await Promise.resolve() + + expect(result).toMatchObject({ value: 'gate completed', stopReason: 'completed', agentsStarted: 2 }) + expect(reentered).toBe(true) + // The host claim and worker's FIFO-later ChildCancel both reach the + // routing gate, but the provider callback is not an idempotent seam: + // invoke it exactly once for this callId. + await waitFor(() => { + expect(cancelChildSpy.mock.calls.filter(([callId]) => callId === 1)).toHaveLength(2) + }, 1000) + expect(explicitCancels.get(0)).toBe(1) + cancelChildSpy.mockRestore() + await handle.dispose() + await ctx.fiber.dispose() + }) + + it('a duplicate Result after the terminal claim cannot repeat cleanup or rewrite the outcome', async () => { + let explicitCancels = 0 + const { ctx, parent, provider } = await setup({ + manual: true, + onChildCancel: (_reason, index) => { if (index === 0) explicitCancels += 1 }, + }) + const handle = ctx.workflows.start({ + ...scripted("agent('stray')\nawait new Promise(() => {})"), + parent, + }) + await waitFor(() => { expect(provider.runs).toHaveLength(1) }) + const worker = (handle as unknown as { worker: Worker }).worker + + worker.emit('message', { + type: WorkerToHostType.Result, + result: { value: 'first', stopReason: 'completed', agentsStarted: 1 }, + }) + worker.emit('message', { + type: WorkerToHostType.Result, + result: { value: 'late', stopReason: 'completed', agentsStarted: 1 }, + }) + + await expect(handle.result).resolves.toMatchObject({ value: 'first', stopReason: 'completed' }) + expect(explicitCancels).toBe(1) + await handle.dispose() + expect(explicitCancels).toBe(1) + await ctx.fiber.dispose() + }) + it('contains a throwing child cancel and still settles after cancelling peer strays', async () => { const ctx = new Context() await ctx.plugin(SubagentService) @@ -918,6 +1076,198 @@ describe('dsh-workflow-workerthread', () => { await handle.dispose() }, 15_000) + it.each(['fulfills', 'rejects'] as const)('provider.start() reentrant cancellation refuses the run when readiness later %s', async (readinessOutcome) => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const readiness = Promise.withResolvers() + let starts = 0 + let explicitCancels = 0 + let disposals = 0 + let sawAbortedSignal = false + const lifecycle: string[] = [] + const provider: SubagentProvider = { + name: 'start-reentry', + capabilities: { outputSchema: true, depthLimit: true, toolFilter: true, persona: false }, + inheritsParentContext: false, + start: (request) => { + starts += 1 + // This arbitrary provider callback runs before onChildStart can put + // the returned run in its registry. Cancellation must be rechecked + // after return instead of trusting the pre-start admission check. + handle.cancel('provider start reentered cancellation') + sawAbortedSignal = request.signal?.aborted === true + return { + id: AgentId('start-reentry-child'), + started: readiness.promise, + result: new Promise(() => { /* refusal owns teardown */ }), + // Deliberately honors only the explicit channel. It must still be + // reached promptly even though the first host fanout saw no run. + cancel: () => { explicitCancels += 1 }, + dispose: () => { + disposals += 1 + return Promise.resolve() + }, + } + }, + } + ctx.subagents.registerProvider(provider) + await ctx.plugin(WorkerWorkflowEngine, { + provider: 'start-reentry', + maxConcurrentAgents: 2, + disposeGraceMs: 30_000, + }) + ctx.on('workflow/agent-start', () => { lifecycle.push('start') }) + ctx.on('workflow/agent-end', () => { lifecycle.push('end') }) + const handle = ctx.workflows.start({ + ...scripted("await agent('reentrant provider')\nreturn 'unreachable'"), + parent: fakeParent(), + }) + + await waitFor(() => { expect(starts).toBe(1) }) + // Either later readiness settlement must not answer the already-refused + // start again or emit a workflow lifecycle pair. + if (readinessOutcome === 'fulfills') readiness.resolve(undefined) + else readiness.reject(new Error('late readiness rejection after refusal')) + let result: WorkflowResult | undefined + void handle.result.then((value) => { result = value }) + await waitFor(() => { + expect(explicitCancels).toBe(1) + expect(disposals).toBe(1) + expect(result?.stopReason).toBe('cancelled') + }, 1000) + expect(sawAbortedSignal).toBe(true) + expect(lifecycle).toEqual([]) + await handle.dispose() + expect(explicitCancels).toBe(1) + expect(disposals).toBe(1) + await ctx.fiber.dispose() + }) + + it('claims workflow and child disposal before a raw provider disposer reenters handle.dispose()', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const terminal = Promise.withResolvers() + const observed: { reentrant?: Promise } = {} + let starts = 0 + let rawDisposeCalls = 0 + const provider: SubagentProvider = { + name: 'dispose-reentry', + capabilities: { outputSchema: true, depthLimit: true, toolFilter: true, persona: false }, + inheritsParentContext: false, + start: () => { + starts += 1 + return { + id: AgentId('dispose-reentry-child'), + started: Promise.resolve(), + result: terminal.promise, + cancel: () => { terminal.resolve({ output: [], stopReason: 'aborted' }) }, + dispose: () => { + rawDisposeCalls += 1 + observed.reentrant = handle.dispose() + return Promise.resolve() + }, + } + }, + } + ctx.subagents.registerProvider(provider) + await ctx.plugin(WorkerWorkflowEngine, { provider: 'dispose-reentry', maxConcurrentAgents: 2 }) + const handle = ctx.workflows.start({ + ...scripted("await agent('live child')\nreturn 'unreachable'"), + parent: fakeParent(), + }) + await waitFor(() => { expect(starts).toBe(1) }) + + const disposal = handle.dispose() + + expect(observed.reentrant).toBe(disposal) + await disposal + expect(rawDisposeCalls).toBe(1) + await expect(handle.result).resolves.toMatchObject({ stopReason: 'cancelled' }) + await ctx.fiber.dispose() + }) + + it('claims worker-originated child disposal before its raw disposer reenters holder disposal', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const terminal = Promise.withResolvers() + const observed: { reentrant?: Promise } = {} + let starts = 0 + let rawDisposeCalls = 0 + const provider: SubagentProvider = { + name: 'child-dispose-reentry', + capabilities: { outputSchema: true, depthLimit: true, toolFilter: true, persona: false }, + inheritsParentContext: false, + start: () => { + starts += 1 + return { + id: AgentId('child-dispose-reentry-child'), + started: Promise.resolve(), + result: terminal.promise, + cancel: () => { terminal.resolve({ output: [], stopReason: 'aborted' }) }, + dispose: () => { + rawDisposeCalls += 1 + // This begins holder disposal from the worker's ChildDispose + // callback, before any public handle.dispose() call exists. + observed.reentrant = handle.dispose() + return Promise.resolve() + }, + } + }, + } + ctx.subagents.registerProvider(provider) + await ctx.plugin(WorkerWorkflowEngine, { provider: 'child-dispose-reentry', maxConcurrentAgents: 2 }) + const handle = ctx.workflows.start({ + ...scripted("return await agent('settling child')"), + parent: fakeParent(), + }) + const finishChildSpy = vi.spyOn(handle as unknown as { + finishChild(callId: number): void + }, 'finishChild') + await waitFor(() => { expect(starts).toBe(1) }) + + terminal.resolve({ output: [{ type: 'text', text: 'done' }], stopReason: 'completed' }) + + await waitFor(() => { expect(observed.reentrant).toBeDefined() }, 1000) + await observed.reentrant + expect(rawDisposeCalls).toBe(1) + expect(finishChildSpy.mock.calls.filter(([callId]) => callId === 1)).toHaveLength(1) + finishChildSpy.mockRestore() + await expect(handle.result).resolves.toMatchObject({ stopReason: 'cancelled' }) + await ctx.fiber.dispose() + }) + + it('a grace-terminated worker reaps its child on exit without waiting for consumer dispose()', async () => { + const { ctx, parent, provider } = await setup({ + manual: true, + config: { provider: 'stub', maxConcurrentAgents: 2, disposeGraceMs: 100 }, + }) + const handle = ctx.workflows.start({ + // Let child-start cross, then make the worker unable to process its + // Cancel message. Grace settles the result and terminates the thread; + // that exit must independently own the host registry's disposal pass. + ...scripted(` + agent('survives until exit reap') + for (let i = 0; i < 20; i++) await null + const end = Date.now() + 1500 + while (Date.now() < end) {} + return 'unreachable' + `), + parent, + }) + await waitFor(() => { expect(provider.runs).toHaveLength(1) }) + + handle.cancel('force termination') + const result = await handle.result + + expect(result.stopReason).toBe('cancelled') + // Deliberately assert before handle.dispose(): host-owned worker exit, + // not consumer courtesy, is responsible for this resource guarantee. + await waitFor(() => { expect(provider.runs[0]!.disposed).toBe(true) }, 1000) + expect(provider.runs[0]!.disposeCalls).toBe(1) + await handle.dispose() + await ctx.fiber.dispose() + }, 15_000) + it('dispose() on a wedged worker host-drives child disposal inside the grace: it returns with the children DISPOSED, not with their teardown still in flight', async () => { const { ctx, parent, provider } = await setup({ manual: true, @@ -1045,23 +1395,71 @@ describe('dsh-workflow-workerthread', () => { }) describe('worker death', () => { + it('the first death signal closes admission to messages Node delivers before exit', async () => { + const { ctx, parent, provider } = await setup({ manual: true }) + const phases: string[] = [] + ctx.on('workflow/phase', (_info, title) => { phases.push(title) }) + const handle = ctx.workflows.start({ + ...scripted('await new Promise(() => {})'), + parent, + }) + const worker = (handle as unknown as { worker: Worker }).worker + + // Node may physically emit error -> queued message -> exit. Reproduce + // that ordering deterministically at the Worker event boundary: the + // late protocol data must not create work, narrate, or rewrite error. + worker.emit('error', new Error('synthetic error-before-message')) + worker.emit('message', { type: WorkerToHostType.Phase, title: 'late phase' }) + worker.emit('message', { + type: WorkerToHostType.ChildStart, + callId: 999, + request: { prompt: 'late child' }, + }) + worker.emit('message', { + type: WorkerToHostType.Result, + result: { value: 'late', stopReason: 'completed', agentsStarted: 1 }, + }) + + const result = await handle.result + expect(result.stopReason).toBe('error') + expect(result.error).toContain('synthetic error-before-message') + expect(provider.runs).toHaveLength(0) + expect(phases).toEqual([]) + await handle.dispose() + await ctx.fiber.dispose() + }) + it('a worker that exits before settling reports an error result and reaps its children', async () => { const ctx = new Context() await ctx.plugin(SubagentService) // The child's dispose() REJECTS on top of the worker death: the reap // must contain it (warn, not crash) while still emptying the registry. const cancelled: string[] = [] + const signalAborts: unknown[] = [] const provider: SubagentProvider = { name: 'doomed', capabilities: { outputSchema: true, depthLimit: true, toolFilter: true, persona: false }, inheritsParentContext: false, - start: () => ({ - id: AgentId('doomed-child'), - started: Promise.resolve(), - result: new Promise(() => { /* never settles; the reap is the teardown */ }), - cancel: (reason?: string) => { cancelled.push(reason ?? 'cancelled') }, - dispose: () => Promise.reject(new Error('dispose exploded during reap')), - }), + start: (request) => { + request.signal?.addEventListener('abort', () => { + signalAborts.push(request.signal?.reason) + // The death claim precedes the shared-signal fanout. This + // synchronous callback cannot turn death into cancellation. + handle.cancel('reentered from worker-death signal cleanup') + }, { once: true }) + return { + id: AgentId('doomed-child'), + started: Promise.resolve(), + result: new Promise(() => { /* never settles; the reap is the teardown */ }), + cancel: (reason?: string) => { + cancelled.push(reason ?? 'cancelled') + // Exercise the later microtask case too: terminal ownership + // remains closed after the death callback returns. + queueMicrotask(() => { handle.cancel('reentered from worker-death child cleanup') }) + }, + dispose: () => Promise.reject(new Error('dispose exploded during reap')), + } + }, } ctx.subagents.registerProvider(provider) await ctx.plugin(WorkerWorkflowEngine, { provider: 'doomed', maxConcurrentAgents: 2 }) @@ -1089,7 +1487,12 @@ describe('dsh-workflow-workerthread', () => { expect(runEnds).toEqual([{ stopReason: 'error', error: result.error, agentsStarted: 1 }]) // Result already settled — this is the reap's promptness, not a // cold-start race; tight explicit bound (see the helper's doc comment). - await waitFor(() => { expect(cancelled.length).toBe(1) }, 1000) + await waitFor(() => { + expect(signalAborts).toEqual(['workflow worker gone']) + expect(cancelled).toEqual(['workflow worker gone']) + }, 1000) + await Promise.resolve() + expect(result.stopReason).toBe('error') await handle.dispose() }, 15_000) From 48067c3a7a2c7ca274af47c6ea4f684e80573a7b Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 10:33:29 +0800 Subject: [PATCH 208/232] fix(subagent): validate depth config at load --- docs/config-catalog.md | 5 +++-- packages/subagent/tool-subagent/README.md | 2 +- packages/subagent/tool-subagent/src/index.ts | 21 ++++++++++++++++--- .../tool-subagent/tests/tool-subagent.spec.ts | 10 +++++++++ 4 files changed, 32 insertions(+), 6 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index dc766ae25f..30a4c8a1a3 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -893,8 +893,9 @@ export interface Config { * Recursion cap applied to every child this tool spawns (see * `SubagentStartRequest.maxDepth`): a spawn whose child would sit deeper * than this in the delegation tree is rejected. Requires the provider's - * `depthLimit` capability. Omitted ⇒ unbounded (bound it in deployments - * that expose this tool to children). + * `depthLimit` capability. Must be a non-negative safe integer and is + * validated when the plugin loads. Omitted ⇒ unbounded (bound it in + * deployments that expose this tool to children). */ maxDepth?: number } diff --git a/packages/subagent/tool-subagent/README.md b/packages/subagent/tool-subagent/README.md index 715fb0b9db..9aed426ac0 100644 --- a/packages/subagent/tool-subagent/README.md +++ b/packages/subagent/tool-subagent/README.md @@ -17,7 +17,7 @@ The tool description and the `prompt` parameter description are DERIVED from the | `agentOptions` | Default per-child `{ model? }` applied to every spawned child. | | `persona` | Per-child persona that shadows the deployment persona; requires the provider's `persona` capability. | | `toolFilter` | Per-child `{ allow?, deny? }` restriction over global tools; requires the provider's `toolFilter` capability. | -| `maxDepth` | Maximum delegation depth; requires the provider's `depthLimit` capability. | +| `maxDepth` | Maximum delegation depth; a non-negative safe integer validated when this plugin loads. Requires the provider's `depthLimit` capability. | ## Lifecycle (synchronous collect) diff --git a/packages/subagent/tool-subagent/src/index.ts b/packages/subagent/tool-subagent/src/index.ts index 4f2a1bc33d..c6dc808068 100644 --- a/packages/subagent/tool-subagent/src/index.ts +++ b/packages/subagent/tool-subagent/src/index.ts @@ -84,8 +84,9 @@ export interface Config { * Recursion cap applied to every child this tool spawns (see * `SubagentStartRequest.maxDepth`): a spawn whose child would sit deeper * than this in the delegation tree is rejected. Requires the provider's - * `depthLimit` capability. Omitted ⇒ unbounded (bound it in deployments - * that expose this tool to children). + * `depthLimit` capability. Must be a non-negative safe integer and is + * validated when the plugin loads. Omitted ⇒ unbounded (bound it in + * deployments that expose this tool to children). */ maxDepth?: number } @@ -115,9 +116,20 @@ export const Config: z = z.object({ allow: z.array(z.string()).default(undefined as unknown as string[]), deny: z.array(z.string()).default(undefined as unknown as string[]), }).default(undefined as unknown as { allow: string[]; deny: string[] }), - maxDepth: z.number(), + maxDepth: z.natural().max(Number.MAX_SAFE_INTEGER), }) +/** Reject a recursion cap that cannot represent an exact delegation depth. */ +function assertMaxDepth(maxDepth: number | undefined): void { + if (maxDepth !== undefined && ( + !Number.isSafeInteger(maxDepth) + || maxDepth < 0 + || Object.is(maxDepth, -0) + )) { + throw new Error('tool-subagent: `maxDepth` must be a non-negative safe integer') + } +} + /** * Flatten a child's final output blocks to text for the tool result. The child * may return non-text blocks; this cut surfaces the text content (the common @@ -188,6 +200,9 @@ export function providerWording(inherits: boolean): { description: string; promp } export function apply(ctx: Context, config: Config): void { + // Keep misconfiguration at plugin load even when a caller invokes apply() + // directly and bypasses Schemastery's natural/max metadata. + assertMaxDepth(config.maxDepth) // Misconfiguration fails loud AT LOAD (the check is self-contained): an // explicit `toolFilter: {}` would otherwise pass the capability gate and // kill every delegation later, in the child-setup `restrict({})` throw. diff --git a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts index 95d26dabdf..194c63997c 100644 --- a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts +++ b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts @@ -493,6 +493,16 @@ describe('dsh-tool-subagent', () => { expect(seen?.maxDepth).toBe(2) }) + it.each([ + { label: 'a negative integer', value: -1 }, + { label: 'a fractional number', value: 1.5 }, + { label: 'negative zero', value: -0 }, + { label: 'an unsafe integer', value: Number.MAX_SAFE_INTEGER + 1 }, + ])('rejects maxDepth=$label when the plugin loads', async ({ value }) => { + await expect(setup({ provider: 'mock', maxDepth: value })) + .rejects.toThrow() + }) + it('a partial toolFilter (deny only) does not materialize an empty allow-list (deny-all trap)', async () => { let seen: { toolFilter?: { allow?: string[]; deny?: string[] } } | undefined const ctx = new Context() From 875c3d62d8fff24fb1a2754a99a2b2b946f4be67 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 10:39:55 +0800 Subject: [PATCH 209/232] fix(workflow): reap children after settled dispose --- .../workflow-workerthread/src/host.ts | 7 +++- .../tests/workflow-workerthread.spec.ts | 32 +++++++++++++++++++ 2 files changed, 38 insertions(+), 1 deletion(-) diff --git a/packages/workflow/workflow-workerthread/src/host.ts b/packages/workflow/workflow-workerthread/src/host.ts index 7e87c14fae..ef5fdcbfac 100644 --- a/packages/workflow/workflow-workerthread/src/host.ts +++ b/packages/workflow/workflow-workerthread/src/host.ts @@ -279,7 +279,12 @@ export class WorkerRun implements WorkflowRun { void (async () => { this.detachInputSignal() this.cancel('workflow disposed') - for (const [callId, run] of [...this.children]) void this.disposeChild(callId, run) + // cancel() deliberately becomes a no-op after terminal settlement, but + // disposal still owns every registered child. Reap independently so an + // already-settled workflow cannot wait on child quiescence before it has + // started the surviving children's disposals. On an unsettled run this + // joins the cancel path through the per-call cancellation/disposal gates. + this.reapChildren('workflow disposed') await Promise.race([ (async () => { await this.result diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index 9e37e0bbed..ec2f458d45 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -755,6 +755,38 @@ describe('dsh-workflow-workerthread', () => { expect(provider.runs[0]!.disposed).toBe(true) }) + it('dispose() reaps a registered stray after result settlement even when the worker cannot relay disposal', async () => { + const { ctx, parent, provider } = await setup({ + manual: true, + config: { provider: 'stub', disposeGraceMs: 30_000 }, + }) + const handle = ctx.workflows.start({ + ...scripted("agent('stray')\nawait new Promise(() => {})"), + parent, + }) + await waitFor(() => { expect(provider.runs).toHaveLength(1) }) + + // Claim the host result while the real worker remains wedged, so it can + // send neither ChildDispose nor an exit. This leaves the accepted child + // in the host registry when public disposal begins. + const worker = (handle as unknown as { worker: Worker }).worker + worker.emit('message', { + type: WorkerToHostType.Result, + result: { value: 'synthetic completion', stopReason: 'completed', agentsStarted: 1 }, + }) + await expect(handle.result).resolves.toMatchObject({ stopReason: 'completed' }) + expect(provider.runs[0]!.disposed).toBe(false) + + const disposal = handle.dispose() + // A 30-second grace makes this assertion mutation-sensitive: without the + // settled-path host reap, no worker message can start child disposal and + // this bounded wait fails long before the grace fallback. + await waitFor(() => { expect(provider.runs[0]!.disposed).toBe(true) }, 1000) + await disposal + expect(provider.runs[0]!.disposeCalls).toBe(1) + await ctx.fiber.dispose() + }) + it('the settle-reap fires the request signal too: a provider honoring ONLY the signal winds its stray down promptly', async () => { const ctx = new Context() await ctx.plugin(SubagentService) From d427478c44df4dcbd0a85aa8b69069927a02d1a3 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 10:48:20 +0800 Subject: [PATCH 210/232] fix(subagent): validate direct depth boundaries --- docs/config-catalog.md | 2 +- docs/cordis-catalog/events.md | 8 ++--- docs/cordis-catalog/services.md | 2 +- docs/event-producer-consumer.md | 8 ++--- .../subagent/subagent-inprocess/README.md | 2 +- .../subagent/subagent-inprocess/src/index.ts | 16 +++++++--- .../tests/subagent-inprocess.spec.ts | 32 +++++++++++++++++++ packages/subagent/subagent/README.md | 1 + packages/subagent/subagent/src/index.ts | 27 ++++++++++++---- packages/subagent/subagent/src/types.ts | 5 +-- .../subagent/subagent/tests/service.spec.ts | 4 +++ packages/subagent/tool-subagent/src/index.ts | 14 ++------ .../tool-subagent/tests/tool-subagent.spec.ts | 3 ++ 13 files changed, 88 insertions(+), 36 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 30a4c8a1a3..8fd8e3379b 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -903,7 +903,7 @@ export interface Config { Depends on: [`AgentOptions`](../packages/core/agent/src/index.ts) -Source: [`packages/subagent/tool-subagent/src/index.ts:44`](../packages/subagent/tool-subagent/src/index.ts) +Source: [`packages/subagent/tool-subagent/src/index.ts:45`](../packages/subagent/tool-subagent/src/index.ts) ## `@deepseek-ai/dsh-tool-web` diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 3e228405ee..d13f88bc2d 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -317,7 +317,7 @@ A started subagent run settled — emitted when SubagentRun.result resolves (any 'subagent/end'(this: Scoped, info: SubagentRunEndInfo): void ``` -Source: [`packages/subagent/subagent/src/index.ts:115`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:134`](../../packages/subagent/subagent/src/index.ts) ### `subagent/provider-added` — emit @@ -327,7 +327,7 @@ A provider became resolvable in the SubagentService registry. Consumers that der 'subagent/provider-added'(provider: SubagentProvider): void ``` -Source: [`packages/subagent/subagent/src/index.ts:76`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:95`](../../packages/subagent/subagent/src/index.ts) ### `subagent/provider-removed` — emit @@ -337,7 +337,7 @@ A provider left the registry (its plugin's fiber was disposed — an unload or a 'subagent/provider-removed'(name: string): void ``` -Source: [`packages/subagent/subagent/src/index.ts:87`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:106`](../../packages/subagent/subagent/src/index.ts) ### `subagent/start` — emit @@ -347,7 +347,7 @@ A subagent run started — emitted only after SubagentRun.started fulfills, when 'subagent/start'(this: Scoped, info: SubagentRunInfo): void ``` -Source: [`packages/subagent/subagent/src/index.ts:102`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:121`](../../packages/subagent/subagent/src/index.ts) ## `system-prompt/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 1122137e1a..f5946a7e4d 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -250,7 +250,7 @@ list(): string[] start(name: string, request: SubagentStartRequest): SubagentRun ``` -Source: [`packages/subagent/subagent/src/index.ts:161`](../../packages/subagent/subagent/src/index.ts) +Source: [`packages/subagent/subagent/src/index.ts:180`](../../packages/subagent/subagent/src/index.ts) ## `ctx.systemPrompt` — `SystemPrompt` diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index ec867aa709..b8bcde4c9a 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -31,10 +31,10 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `session/flush` | `parallel` | [`packages/core/session/src/index.ts:96`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | | `skill/provider-added` | `emit` | [`packages/skill/skill/src/index.ts:132`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | | `skill/provider-removed` | `emit` | [`packages/skill/skill/src/index.ts:138`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | -| `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:115`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | -| `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:76`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | -| `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:87`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`tool-subagent`](../packages/subagent/tool-subagent) | -| `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:102`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | +| `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:134`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | +| `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:95`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | +| `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:106`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`tool-subagent`](../packages/subagent/tool-subagent) | +| `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:121`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | | `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:46`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | | `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:56`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | | `tools/change` | `emit` | [`packages/core/tools/src/index.ts:176`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | diff --git a/packages/subagent/subagent-inprocess/README.md b/packages/subagent/subagent-inprocess/README.md index 1e812ce60d..b96cc811ad 100644 --- a/packages/subagent/subagent-inprocess/README.md +++ b/packages/subagent/subagent-inprocess/README.md @@ -8,7 +8,7 @@ The shared **in-process subagent run driver**. A library with no provider or imp Runs a child as a child [`Agent`](../../core/agent) on the same cordis context (`ctx.agents`): -1. reads every public request and seed field once before asynchronous owner setup: the parent and signal remain identity capabilities, while tool filter, seed, agent options, output schema, and prompt are each materialized by the shared one-pass lossless-JSON snapshot. It computes child depth = `depthOf(parent) + 1`, rejects `request.maxDepth` overflow with `SubagentDepthError`, reports an invalid schema as `OutputSchemaError`, and derives both the child prefix and `seedLength` from the same detached seed; +1. reads every public request and seed field once before asynchronous owner setup: the parent and signal remain identity capabilities, while tool filter, seed, agent options, output schema, and prompt are each materialized by the shared one-pass lossless-JSON snapshot. It rejects a malformed `request.maxDepth`, validates the parent's `subagentDepth`, computes child depth = `depthOf(parent) + 1`, rejects cap overflow with `SubagentDepthError`, reports an invalid schema as `OutputSchemaError`, and derives both the child prefix and `seedLength` from the same detached seed; 2. first installs provider ownership, then attaches the request abort listener and creates one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves no child or orphaned listener. Async child creation goes through that fiber's `ctx.agents` service with fresh IDs, lineage/seed, inherited model, and an unpublished setup transaction for persona, tool restriction, and structured output. Parent teardown, provider teardown, manual `run.dispose()`, and cancellation before readiness all dispose this exact node, preventing publication after it becomes inactive and sharing the same quiescence boundary. `startInProcessRun` still returns its `SubagentRun` immediately: `run.started` resolves only after `ctx.agents.create()` has published the child and rejects when pre-readiness cancellation rolls the transaction back; 3. drives the one-shot: `child.send(prompt)` then `await child.whenIdle()` (ordering matters — `send` enqueues synchronously, so `whenIdle` observes the queued work and resolves on the child's `running → idle` transition, never before the turn starts); there is deliberately NO re-prompt for a structured child that finished cleanly without calling `structured_output` — the shortfall maps to an `error` result for the parent; 4. reads the result, scoped to the child's OWN events (everything at or after `seedLength`, so a seeded child that produced no message of its own never returns the seeded parent's last message): the last `assistant/message` content (deep-cloned — the log is frozen) and the last `turn/end.reason` mapped to a `SubagentStopReason`. A structured run surfaces the captured value as `result.structured`; a structured child that finished cleanly WITHOUT ever capturing settles `error` (a clean finish without the demanded result is a failure, not a success with a missing field). diff --git a/packages/subagent/subagent-inprocess/src/index.ts b/packages/subagent/subagent-inprocess/src/index.ts index 511b686c13..e0ad53c486 100644 --- a/packages/subagent/subagent-inprocess/src/index.ts +++ b/packages/subagent/subagent-inprocess/src/index.ts @@ -21,6 +21,7 @@ import { AgentId, type Agent, type AgentHandle, type AgentOptions } from '@deeps import { SessionId, snapshotJsonValue, type SessionEvent, type TurnEndReason } from '@deepseek-ai/dsh-session' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import { assertSupportedOutputSchema, OutputSchemaError } from '@deepseek-ai/dsh-tools' +import { assertSubagentMaxDepth } from '@deepseek-ai/dsh-subagent' import type { SubagentResult, SubagentRun, SubagentStartRequest, SubagentStopReason } from '@deepseek-ai/dsh-subagent' import { attachStructuredRuntime, @@ -42,20 +43,26 @@ declare module '@deepseek-ai/dsh-agent' { * (config/ACP-created) agent, parent depth + 1 for a subagent. Set by the * in-process backends on every child they create so a nested spawn reads its * parent's depth from `parent.options.subagentDepth` and the `depthLimit` - * capability can cap the tree. Merge-extensible field (the seam owns it; the - * loop neither sets nor reads it). + * capability can cap the tree. When present it is a non-negative safe + * integer. Merge-extensible field (the seam owns it; the loop neither sets + * nor reads it). */ subagentDepth?: number } } /** - * Read an agent's delegation depth (absent ⇒ a top-level agent, depth 0). + * Read an agent's delegation depth (absent ⇒ a top-level agent, depth 0), + * rejecting a malformed stored value instead of letting it disable comparison. * @param agent - the agent whose options may carry `subagentDepth`. * @returns 0 for a top-level agent, its parent's depth + 1 for a subagent. */ export function depthOf(agent: Agent): number { - return agent.options.subagentDepth ?? 0 + const depth = agent.options.subagentDepth ?? 0 + if (!Number.isSafeInteger(depth) || depth < 0 || Object.is(depth, -0)) { + throw new TypeError('agent subagentDepth must be a non-negative safe integer') + } + return depth } /** Thrown when a spawn would exceed the request's `maxDepth` cap. */ @@ -139,6 +146,7 @@ export function startInProcessRun( const inputPrompt = request.prompt const inputAgentOptions = request.agentOptions const inputSeed = options.seed + assertSubagentMaxDepth(inputMaxDepth) const toolFilter = inputToolFilter === undefined ? undefined : snapshotJsonValue(inputToolFilter) if (inputToolFilter !== undefined && toolFilter === undefined) { throw new TypeError('subagent tool filter must be losslessly JSON-serializable') diff --git a/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts b/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts index cb394d8d95..db37c974b3 100644 --- a/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts @@ -46,9 +46,41 @@ describe('depthOf', () => { const withDepth = { options: { subagentDepth: 3 } } as unknown as Agent expect(depthOf(withDepth)).toBe(3) }) + + it.each([ + { label: 'a string', value: '1' as unknown as number }, + { label: 'NaN', value: Number.NaN }, + { label: 'positive infinity', value: Number.POSITIVE_INFINITY }, + { label: 'negative infinity', value: Number.NEGATIVE_INFINITY }, + { label: 'a fraction', value: 1.5 }, + { label: 'a negative integer', value: -1 }, + { label: 'negative zero', value: -0 }, + { label: 'an unsafe integer', value: Number.MAX_SAFE_INTEGER + 1 }, + ])('rejects subagentDepth=$label', ({ value }) => { + const agent = { options: { subagentDepth: value } } as unknown as Agent + expect(() => depthOf(agent)).toThrow('agent subagentDepth must be a non-negative safe integer') + }) }) describe('startInProcessRun', () => { + it.each([ + { label: 'a string', value: '1' as unknown as number }, + { label: 'NaN', value: Number.NaN }, + { label: 'positive infinity', value: Number.POSITIVE_INFINITY }, + { label: 'negative infinity', value: Number.NEGATIVE_INFINITY }, + { label: 'a fraction', value: 1.5 }, + { label: 'a negative integer', value: -1 }, + { label: 'negative zero', value: -0 }, + { label: 'an unsafe integer', value: Number.MAX_SAFE_INTEGER + 1 }, + ])('rejects maxDepth=$label before acquiring run ownership', async ({ value }) => { + const { ctx, parent } = await setup([]) + expect(() => startInProcessRun(ctx, { + prompt: [{ type: 'text', text: 'must never start' }], + parent, + maxDepth: value, + }, {})).toThrow('subagent maxDepth must be a non-negative safe integer') + }) + it('rejects a non-JSON prompt before acquiring any run ownership', async () => { const { ctx, parent } = await setup([]) expect(() => startInProcessRun(ctx, { diff --git a/packages/subagent/subagent/README.md b/packages/subagent/subagent/README.md index e29706bd8b..e98d8cd8de 100644 --- a/packages/subagent/subagent/README.md +++ b/packages/subagent/subagent/README.md @@ -19,6 +19,7 @@ Unlike the bash seam (one executor per context, second load throws), **multiple | Member | Semantics | |---|---| | `registerProvider(provider)` | Read and validate the name, capability object and four boolean flags, `inheritsParentContext`, and `start` callback exactly once, then register a frozen acceptance snapshot under the accepted name. Malformed fixed fields fail loud before registration; later caller mutation cannot change registry behavior or HMR cleanup, while `start` stays bound to the original provider receiver. Throws `SubagentError('DUPLICATE_PROVIDER')` on a name clash. Effect-scoped (HMR-safe); returns the disposer. | +| `assertSubagentMaxDepth(value)` | Shared runtime boundary for recursion caps. Accepts absence or a non-negative safe integer; rejects fractions, non-finite numbers, negative values, negative zero, and unsafe integers. The service, direct in-process driver, and model-facing config adapter all use it. | | `getProvider(name)` | Look up the frozen registry snapshot (`undefined` if absent). | | `list()` | Registered provider names (insertion order). | | `start(name, request)` | Resolve the provider (`NO_PROVIDER` if absent), read every caller field once into one acceptance snapshot, validate every requested START-TIME capability and scalar value before any child is created, and materialize prompt/schema/options/filter data through a single-pass lossless-JSON snapshot before delegating to `provider.start`. Acquire the provider run's disposer before reading the rest of its handle, then return a frozen service-owned wrapper whose fields are captured once, whose methods remain bound to the provider handle, and whose `result` is one detached, deeply frozen normalization shared by the caller and telemetry. The wrapper claims its shared disposal promise before invoking raw provider code, so synchronous reentry and ordinary repeats join one provider call; a raw disposer that directly returns that same reentrant wrapper promise is rejected as a cyclic provider contract instead of hanging forever. Malformed handle access/binding starts rollback before the synchronous fault escapes; malformed terminal data rejects only after rollback reaches quiescence. Emit `subagent/start` only after `run.started` fulfills and the paired `subagent/end` after that started run settles; a pre-publication readiness rejection emits neither. | diff --git a/packages/subagent/subagent/src/index.ts b/packages/subagent/subagent/src/index.ts index 74b7df171b..ba44354358 100644 --- a/packages/subagent/subagent/src/index.ts +++ b/packages/subagent/subagent/src/index.ts @@ -58,6 +58,25 @@ export type { SubagentStopReasonMap, } from './types.ts' +/** + * Reject a recursion cap that cannot represent an exact delegation depth. + * Undefined means the caller did not request a cap and is accepted. The + * service, direct in-process driver, and model-facing config adapter share this + * boundary so no entry path can turn a fractional or non-finite value into an + * ineffective limit. + * @param maxDepth - the optional runtime value to validate. + */ +export function assertSubagentMaxDepth(maxDepth: unknown): void { + if (maxDepth !== undefined && ( + typeof maxDepth !== 'number' + || !Number.isSafeInteger(maxDepth) + || maxDepth < 0 + || Object.is(maxDepth, -0) + )) { + throw new TypeError('subagent maxDepth must be a non-negative safe integer') + } +} + declare module 'cordis' { interface Context { subagents: SubagentService @@ -309,13 +328,7 @@ export class SubagentService extends Service { const input = this.snapshotStartRequest(request) const parent = input.parent this.assertCapabilities(provider, input) - if (input.maxDepth !== undefined && ( - !Number.isSafeInteger(input.maxDepth) - || input.maxDepth < 0 - || Object.is(input.maxDepth, -0) - )) { - throw new TypeError('subagent maxDepth must be a non-negative safe integer') - } + assertSubagentMaxDepth(input.maxDepth) if (input.persona !== undefined && typeof input.persona !== 'string') { throw new TypeError('subagent persona must be a string') } diff --git a/packages/subagent/subagent/src/types.ts b/packages/subagent/subagent/src/types.ts index 003d6a6a3d..97efd4661f 100644 --- a/packages/subagent/subagent/src/types.ts +++ b/packages/subagent/subagent/src/types.ts @@ -69,8 +69,9 @@ export interface SubagentStartRequest { */ outputSchema?: StructuredOutputSchema /** - * Optional recursion cap (max delegation depth below this child). Requires - * {@link SubagentCapabilities.depthLimit}; rejected at start otherwise. + * Optional recursion cap (max delegation depth below this child). Must be a + * non-negative safe integer. Requires {@link SubagentCapabilities.depthLimit}; + * rejected at start otherwise. */ maxDepth?: number /** diff --git a/packages/subagent/subagent/tests/service.spec.ts b/packages/subagent/subagent/tests/service.spec.ts index e9b66ce158..faf4bb00b3 100644 --- a/packages/subagent/subagent/tests/service.spec.ts +++ b/packages/subagent/subagent/tests/service.spec.ts @@ -431,10 +431,14 @@ describe('SubagentService', () => { }) it.each([ + { label: 'a string', value: '1' as unknown as number }, { label: 'NaN', value: Number.NaN }, + { label: 'positive infinity', value: Number.POSITIVE_INFINITY }, + { label: 'negative infinity', value: Number.NEGATIVE_INFINITY }, { label: 'a fraction', value: 1.5 }, { label: 'a negative integer', value: -1 }, { label: 'negative zero', value: -0 }, + { label: 'an unsafe integer', value: Number.MAX_SAFE_INTEGER + 1 }, ])('rejects maxDepth=$label before the provider starts', async ({ value }) => { const ctx = new Context() await ctx.plugin(SubagentService) diff --git a/packages/subagent/tool-subagent/src/index.ts b/packages/subagent/tool-subagent/src/index.ts index c6dc808068..ca7f20d23d 100644 --- a/packages/subagent/tool-subagent/src/index.ts +++ b/packages/subagent/tool-subagent/src/index.ts @@ -35,6 +35,7 @@ import z from 'schemastery' import { defineTool } from '@deepseek-ai/dsh-tools' import type { AgentOptions } from '@deepseek-ai/dsh-agent' import type { ContentBlock } from '@deepseek-ai/dsh-llm' +import { assertSubagentMaxDepth } from '@deepseek-ai/dsh-subagent' import type { SubagentProvider, SubagentResult, SubagentRun, SubagentStartRequest } from '@deepseek-ai/dsh-subagent' export const name = 'tool-subagent' @@ -119,17 +120,6 @@ export const Config: z = z.object({ maxDepth: z.natural().max(Number.MAX_SAFE_INTEGER), }) -/** Reject a recursion cap that cannot represent an exact delegation depth. */ -function assertMaxDepth(maxDepth: number | undefined): void { - if (maxDepth !== undefined && ( - !Number.isSafeInteger(maxDepth) - || maxDepth < 0 - || Object.is(maxDepth, -0) - )) { - throw new Error('tool-subagent: `maxDepth` must be a non-negative safe integer') - } -} - /** * Flatten a child's final output blocks to text for the tool result. The child * may return non-text blocks; this cut surfaces the text content (the common @@ -202,7 +192,7 @@ export function providerWording(inherits: boolean): { description: string; promp export function apply(ctx: Context, config: Config): void { // Keep misconfiguration at plugin load even when a caller invokes apply() // directly and bypasses Schemastery's natural/max metadata. - assertMaxDepth(config.maxDepth) + assertSubagentMaxDepth(config.maxDepth) // Misconfiguration fails loud AT LOAD (the check is self-contained): an // explicit `toolFilter: {}` would otherwise pass the capability gate and // kill every delegation later, in the child-setup `restrict({})` throw. diff --git a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts index 194c63997c..4e125d24e1 100644 --- a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts +++ b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts @@ -494,6 +494,9 @@ describe('dsh-tool-subagent', () => { }) it.each([ + { label: 'NaN', value: Number.NaN }, + { label: 'positive infinity', value: Number.POSITIVE_INFINITY }, + { label: 'negative infinity', value: Number.NEGATIVE_INFINITY }, { label: 'a negative integer', value: -1 }, { label: 'a fractional number', value: 1.5 }, { label: 'negative zero', value: -0 }, From cb03c8c2844790230a2ee1de24f72c7cf4bac742 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 11:17:57 +0800 Subject: [PATCH 211/232] fix(scope): align trust and input boundaries Rewrite the agent-scope RFC with executable examples and an explicit security non-goal. Harden subagent scalar and depth validation, and pin live tool-filter semantics across code, tests, and generated docs. --- CONTEXT.md | 8 +- docs/config-catalog.md | 10 +- docs/cordis-catalog/events.md | 2 +- docs/cordis-catalog/services.md | 4 +- docs/core-data-structures/subagent.md | 6 +- docs/core-data-structures/tools.md | 2 +- ...t-variables-and-tool-guidance-ownership.md | 4 +- .../2026-07-08-agent-scope-contexts.md | 403 ++++++++++++++++-- .../cordis/tool-cordis/src/api-catalog.ts | 2 +- packages/core/scope/README.md | 4 +- packages/core/scope/src/index.ts | 10 +- packages/core/system-prompt/README.md | 4 +- packages/core/system-prompt/src/index.ts | 12 +- packages/core/tools/README.md | 2 +- packages/core/tools/src/index.ts | 26 +- packages/core/tools/tests/scoped.spec.ts | 27 +- packages/subagent/subagent-fork/README.md | 2 +- .../subagent/subagent-inprocess/README.md | 8 +- .../subagent/subagent-inprocess/src/index.ts | 12 +- .../tests/structured.spec.ts | 2 +- .../tests/subagent-inprocess.spec.ts | 23 + packages/subagent/subagent/README.md | 2 +- packages/subagent/subagent/src/types.ts | 13 +- .../subagent/subagent/tests/service.spec.ts | 3 +- packages/subagent/tool-subagent/README.md | 8 +- packages/subagent/tool-subagent/src/index.ts | 21 +- .../tool-subagent/tests/tool-subagent.spec.ts | 20 +- packages/support/subagent-mock/README.md | 2 +- packages/support/subagent-mock/src/index.ts | 8 +- 29 files changed, 545 insertions(+), 105 deletions(-) diff --git a/CONTEXT.md b/CONTEXT.md index 7fd11ae59e..2b3584aff4 100644 --- a/CONTEXT.md +++ b/CONTEXT.md @@ -4,12 +4,12 @@ Domain vocabulary for the DeepSeek Harness SDK — one canonical term per concep ## agent-scope -- **scope** — the unit of per-agent registration: a contribution (tool, prompt section, variable, restriction, listener) is either *global* (visible to every agent) or *scoped* (owned by exactly one [[scope-key]]). Two levels, flat: nothing inherits down to subagents; subtree behavior is expressed with [[lineage]] data, never structure. +- **scope** — the unit of per-agent registration: a contribution (tool, prompt section, variable, restriction, listener) is either *global* (visible to every agent) or *scoped* (owned by exactly one [[scope-key]]). Two levels, flat: scoped registrations do not inherit down to subagents; subtree behavior is expressed with [[lineage]] data, never scope structure. - **scope key** — the opaque identity a scope is keyed by, compared by object identity. The harness convention: a live agent is the key of its own scope. -- **agent context (`agent.ctx`)** — the agent's scoped context; registrations through it are scope-visible AND scope-lifetime (one fact drives both), and listeners on it hear only that agent's dispatches. +- **agent context (`agent.ctx`)** — the agent's scoped context; registrations through it are scope-visible AND scope-lifetime (one fact drives both), and listeners on it participate in that agent's scope-filtered dispatches. Registry-subject events may remain deliberately unfiltered under their own event contracts. - **scope carrier** — the `thisArg` a scope-filtered dispatch carries (built by `scopeTarget`); its filter admits untagged listeners plus the subject's own. A *subject-less* carrier (no key) admits untagged listeners only. - **scoped dispatch** — the rule: an event about one agent's activity dispatches with that agent's carrier. Events about a registry itself (a tool was added) are *registry-subject* and stay unfiltered. - **shadowing** — most-specific-wins name resolution: a scoped tool/section/variable replaces its same-named global twin for that scope alone. The per-agent persona and per-agent tool-variant mechanism. -- **restriction / grant** — a restriction (`tools.restrict`) masks the GLOBAL tool surface for one scope (compose by intersection); a scoped registration is an explicit grant that bypasses restrictions. A restricted-away tool is absent from the prompt AND refuses execution, indistinguishably from a nonexistent one. -- **setup window** — the creation slot where a creator composes an agent's scoped world (`CreateAgentOptions.setup`): after the scope exists and the agent is registered, before `agent/session-start` and the first prompt assembly. Setup registers; it never drives the agent. +- **restriction / scope-local registration** — a restriction (`tools.restrict`) filters the GLOBAL tool surface for one scope (compose by intersection); scope-local registrations are merged after that filter. A filtered-away global tool is absent from the prompt AND refuses execution, indistinguishably from a nonexistent one. +- **setup window** — the creation slot where a creator composes an agent's scoped world (`CreateAgentOptions.setup`): after the scope and agent object exist but before the agent or session is published, `agent/session-start` fires, or the first prompt is assembled. Setup registers; it never drives the agent. - **lineage** — parent/child facts carried as data (`parentSession`, `subagentDepth`); never affects visibility. diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 8fd8e3379b..57f8bc961a 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -712,9 +712,11 @@ export interface Config { /** Which start-time capabilities to advertise (default: all `true`). */ capabilities?: Partial /** - * The context contract to declare ({@link SubagentProvider.inheritsParentContext}); - * default `false` (spawn-like). Set `true` to exercise the fork-shaped tool - * wording in consumer tests. + * The conversation-history descriptor to declare + * ({@link SubagentProvider.inheritsParentContext}); default `false` (fresh + * conversation). Set `true` to exercise seeded/fork wording in consumer + * tests. This flag says nothing about tool, service, scope, or authority + * inheritance. */ inheritsParentContext?: boolean /** @@ -903,7 +905,7 @@ export interface Config { Depends on: [`AgentOptions`](../packages/core/agent/src/index.ts) -Source: [`packages/subagent/tool-subagent/src/index.ts:45`](../packages/subagent/tool-subagent/src/index.ts) +Source: [`packages/subagent/tool-subagent/src/index.ts:47`](../packages/subagent/tool-subagent/src/index.ts) ## `@deepseek-ai/dsh-tool-web` diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index d13f88bc2d..d59bc617d0 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -385,7 +385,7 @@ Source: [`packages/core/tools/src/index.ts:176`](../../packages/core/tools/src/i ### `tools/execute` — waterfall -Around-dispatch waterfall wrapping the registry's core tool dispatch, between the `tools/pre-execute` gate and the `tools/post-execute` seam. A listener receives `(exec, next)`: call `next()` to delegate to dispatch (returning its ToolExecutionResult, optionally wrapped), or return a replacement result without calling `next()` to short-circuit dispatch. The base `next()` IS the dispatch-with-normalization thunk — a thrown tool (or unknown tool) is already normalized to an `isError` result by the time a listener's `await next()` returns, so a wrapper never sees a raw throw from the tool body. This is the seam a timeout/retry/metrics plugin wraps: it can set or replace the one mutable field, `exec.signal` (e.g. with a per-call deadline), BEFORE `next()`, restore/delete it afterward, and inspect the result AFTER. Call identity (`token`, `callId`, `name`, `arguments`, `agent`, and `parent`) is immutable throughout the pipeline so a wrapper cannot change which capability or scope was authorized. (Cordis `next()` ignores passed arguments and re-invokes downstream with the shared payload, so a wrapper changes `exec.signal` in place rather than passing a new object to `next()`.) Multiple listeners compose by registration order — an outer one wraps the inner ones plus dispatch. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by `exec.agent` — a listener registered through `agent.ctx` wraps only that agent's calls; a plain plugin listener wraps every call (including agent-less ones, which dispatch subject-less). +Around-dispatch waterfall wrapping the registry's core tool dispatch, between the `tools/pre-execute` gate and the `tools/post-execute` seam. A listener receives `(exec, next)`: call `next()` to delegate to dispatch (returning its ToolExecutionResult, optionally wrapped), or return a replacement result without calling `next()` to short-circuit dispatch. The base `next()` IS the dispatch-with-normalization thunk — a thrown tool (or unknown tool) is already normalized to an `isError` result by the time a listener's `await next()` returns, so a wrapper never sees a raw throw from the tool body. This is the seam a timeout/retry/metrics plugin wraps: it can set or replace the one mutable field, `exec.signal` (e.g. with a per-call deadline), BEFORE `next()`, restore/delete it afterward, and inspect the result AFTER. Call identity (`token`, `callId`, `name`, `arguments`, `agent`, and `parent`) is immutable throughout the pipeline so a wrapper cannot change which tool and scope the pipeline accepted. (Cordis `next()` ignores passed arguments and re-invokes downstream with the shared payload, so a wrapper changes `exec.signal` in place rather than passing a new object to `next()`.) Multiple listeners compose by registration order — an outer one wraps the inner ones plus dispatch. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by `exec.agent` — a listener registered through `agent.ctx` wraps only that agent's calls; a plain plugin listener wraps every call (including agent-less ones, which dispatch subject-less). ```ts cordis-catalog 'tools/execute'(this: Scoped, exec: ToolExecution, next: () => Promise): Promise diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index f5946a7e4d..877c10e080 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -254,7 +254,7 @@ Source: [`packages/subagent/subagent/src/index.ts:180`](../../packages/subagent/ ## `ctx.systemPrompt` — `SystemPrompt` -Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, named prompt variables, and authoritative contribution protections; the agent loop calls `assemble(context)` once per step. Registers the harness-owned `harness:identity` and `deployment:persona` sections itself (see Config.persona). +Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, named prompt variables, and owner-final contribution protections; the agent loop calls `assemble(context)` once per step. Registers the harness-owned `harness:identity` and `deployment:persona` sections itself (see Config.persona). ```ts cordis-catalog section(section: PromptSection): () => Promise | void @@ -285,7 +285,7 @@ async execute(exec: ToolExecutionInput): Promise Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecutionInput](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:481`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:484`](../../packages/core/tools/src/index.ts) ## `ctx.userInteraction` — `UserInteractionService` diff --git a/docs/core-data-structures/subagent.md b/docs/core-data-structures/subagent.md index 3de6b5861e..2f3e089a22 100644 --- a/docs/core-data-structures/subagent.md +++ b/docs/core-data-structures/subagent.md @@ -78,7 +78,7 @@ interface SubagentRun { ## The provider seam: `SubagentProvider` -One transport for running a child agent. Implementations register under a unique name via `SubagentService.registerProvider`; multiple coexist in one context. The service validates every requested start-time capability before calling `start`, so an implementation may assume e.g. `request.maxDepth` is honorable when present. `inheritsParentContext` is a DESCRIPTIVE fact beside the capabilities (nothing validates against it): whether a child sees the parent conversation (`fork`: true, `spawn`/`acp`: false) — the model-facing consumer derives truthful tool wording from it. +One transport for running a child agent. Implementations register under a unique name via `SubagentService.registerProvider`; multiple coexist in one context. The service validates every requested start-time capability before calling `start`, so an implementation may assume e.g. `request.maxDepth` is honorable when present. `inheritsParentContext` is a DESCRIPTIVE fact beside the capabilities (nothing validates against it): whether a child sees the parent conversation (`fork`: true, `spawn`/`acp`: false) — the model-facing consumer derives truthful tool wording from it. It describes conversation history only, not tool registrations, injected services, or authority inheritance. ```ts type-equiv interface SubagentProvider { @@ -93,7 +93,7 @@ The service (`ctx.subagents`) emits `subagent/start` only after `run.started` fu ## In-process backends: depth and seed -The two in-process backends ([dsh-subagent-spawn](../../packages/subagent/subagent-spawn) fresh, [dsh-subagent-fork](../../packages/subagent/subagent-fork) seeded) run the child as a child `Agent` on the same application. They synchronously snapshot caller-owned data, install provider ownership before attaching the abort listener, create one run-owner fiber under `parent.ctx`, and invoke the factory through that fiber: parent teardown, provider teardown, and manual run disposal share the same pre-publication ownership and quiescence boundary, while the child still receives a flat new scope rather than inheriting the parent's capabilities. Their `started` promise projects the factory's successful publication and the result driver awaits that same promise before sending the prompt. Two pieces of vocabulary ride on the existing agent/session types rather than new core types: +The two in-process backends ([dsh-subagent-spawn](../../packages/subagent/subagent-spawn) fresh, [dsh-subagent-fork](../../packages/subagent/subagent-fork) seeded) run the child as a child `Agent` on the same application. They synchronously snapshot caller-owned data, install provider ownership before attaching the abort listener, create one run-owner fiber under `parent.ctx`, and invoke the factory through that fiber: parent teardown, provider teardown, and manual run disposal share the same pre-publication ownership and quiescence boundary, while the child still receives a flat new scope rather than inheriting the parent's registrations. Their `started` promise projects the factory's successful publication and the result driver awaits that same promise before sending the prompt. Two pieces of vocabulary ride on the existing agent/session types rather than new core types: -- **Delegation depth** is a merge-extensible `AgentOptions.subagentDepth` field (`0` for a top-level agent, parent + 1 for a child). The seam owns it — the loop neither sets nor reads it — so a nested spawn reads its parent's depth from `parent.options.subagentDepth` and the `depthLimit` capability caps the tree by refusing a child whose depth would exceed `request.maxDepth`. +- **Delegation depth** is a merge-extensible `AgentOptions.subagentDepth` field (`0` for a top-level agent, parent + 1 for a child). Only `undefined` means top level; every stored present value must be a non-negative safe integer. The seam owns it — the loop neither sets nor reads it — so a nested spawn validates its parent's stored depth, rejects a derived child depth outside the safe-integer domain, and applies a defined absolute `request.maxDepth` cap to that child. - **Fork seeding** uses `CreateAgentOptions.seed` (a `SessionEvent[]` prefix threaded through `AgentLoop.createAgent` → `ctx.sessions.prepare({ seed })`, the same primitive `resume` uses). The fork backend passes a *balanced completed-turn prefix* of the parent's log — the parent's events up to and including its last `turn/end` — so the seed is contiguous-from-0 and the [invariants](../../packages/support/invariants) replay accepts it (the in-flight, unbalanced turn is excluded). diff --git a/docs/core-data-structures/tools.md b/docs/core-data-structures/tools.md index 5c11f1a07c..1766b4c9ce 100644 --- a/docs/core-data-structures/tools.md +++ b/docs/core-data-structures/tools.md @@ -118,7 +118,7 @@ interface ToolExecution extends ToolExecutionInput { } ``` -`ToolExecutionToken` is a compile-time opaque type and a frozen, property-free object at runtime; identity comparison is its only operation. Before policy runs, `ctx.tools.execute()` reads each caller-owned field once, materializes `arguments` as detached lossless JSON in one recursive pass, assigns a fresh token, and deep-freezes the accepted arguments. A mutable exotic such as `Map` is rejected and normalized to an error before policy; one-pass materialization prevents a stateful getter from supplying different values to validation and storage. `token`, `callId`, `name`, `arguments`, `agent`, and the optional `parent` token are non-writable throughout all waterfalls, so a listener cannot change which capability or scope was authorized or reach a live enclosing execution; an around-dispatch wrapper may add, replace, or remove only optional `signal`. After the complete pipeline the registry freezes the execution and exposes its stable identity to `tools/result` observers, where the execution remains usable as a `WeakMap` key without mutation races. +`ToolExecutionToken` is a compile-time opaque type and a frozen, property-free object at runtime; identity comparison is its only operation. Before policy runs, `ctx.tools.execute()` reads each caller-owned field once, materializes `arguments` as detached lossless JSON in one recursive pass, assigns a fresh token, and deep-freezes the accepted arguments. A mutable exotic such as `Map` is rejected and normalized to an error before policy; one-pass materialization prevents a stateful getter from supplying different values to validation and storage. `token`, `callId`, `name`, `arguments`, `agent`, and the optional `parent` token are non-writable throughout all waterfalls, so a listener cannot change which tool or scope the pipeline accepted or reach a live enclosing execution; an around-dispatch wrapper may add, replace, or remove only optional `signal`. After the complete pipeline the registry freezes the execution and exposes its stable identity to `tools/result` observers, where the execution remains usable as a `WeakMap` key without mutation races. A `ToolGuard` is scope-aware final pre-dispatch policy. Its shape deliberately has no allow result: `undefined` preserves the waterfall decision, while a returned reason can only reduce permission, so a later listener cannot undo it. diff --git a/docs/rfc/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md b/docs/rfc/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md index 24a525307e..53d3e63cdb 100644 --- a/docs/rfc/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md +++ b/docs/rfc/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md @@ -36,9 +36,9 @@ Plugins contribute named values via `ctx.systemPrompt.variable(name, provider)`; Per-tool semantics and when-to-use live in tool DESCRIPTIONS, which already ship in every request — the YAML prose was ~fully redundant with them. Sections carry only the cross-call habits a single call's description cannot: `dsh-tool-bash` contributes `tool:bash` (order 105) — check the `[exit code: N]` marker on every result; `dsh-tool-fs`'s read section gains the "not shell commands like cat" contrast. `todo_write` and the subagent tools need NO section — their descriptions already carry the whole contract. The leaf personas shrink to identity + behavior (verify your work; keep answers brief), and the welcome banner stops enumerating tools. -### The subagent context contract +### The subagent conversation-history descriptor -`SubagentProvider` gains `readonly inheritsParentContext: boolean` — a DESCRIPTIVE fact beside `capabilities`, not in it (capabilities are start-time validation; nothing validates against this flag). Spawn and ACP declare `false`, fork declares `true`. `dsh-tool-subagent` derives both the tool description and the `prompt` parameter description from the flag (`providerWording`): the fork instance now tells the model the child inherits the conversation's completed turns (not the in-flight turn) and that its prompt should state only what is new. Deriving the description from a provider that arrives on its own fiber is what forced the provider-lifecycle events and the tool's reactive registration — that mechanism, its Loader-concurrency rationale, and its rejected alternatives are recorded in [the provider-lifecycle-events RFC](2026-07-05-subagent-provider-lifecycle-events.md). +`SubagentProvider` gains `readonly inheritsParentContext: boolean` — a DESCRIPTIVE conversation-history fact beside `capabilities`, not in it (capabilities are start-time validation; nothing validates against this flag). Spawn and ACP declare `false`, fork declares `true`. The name refers only to conversation seeding, not Cordis scope, services, tools, or authority. `dsh-tool-subagent` derives both the tool description and the `prompt` parameter description from the flag (`providerWording`): the fork instance now tells the model the child is seeded with the conversation's completed turns (not the in-flight turn) and that its prompt should state only what is new. Deriving the description from a provider that arrives on its own fiber is what forced the provider-lifecycle events and the tool's reactive registration — that mechanism, its Loader-concurrency rationale, and its rejected alternatives are recorded in [the provider-lifecycle-events RFC](2026-07-05-subagent-provider-lifecycle-events.md). ## Alternatives considered diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index df6433dd26..9162273c72 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -6,26 +6,48 @@ Status: implemented One application can run many agents that share infrastructure but must not share every capability or policy. A child agent may need a different persona, fewer tools, its own structured-result schema, and listeners that govern only its work, while still using the deployment's model adapters, persistence backend, tool implementations, and user interface. -This is a composition problem, not an application-isolation problem. Starting a separate service graph for every child would isolate too much; putting every registration in one global graph isolates too little. +This is a composition problem, not an application-isolation or security-confinement problem. Starting a separate service graph for every child would isolate too much; putting every registration in one global graph isolates too little. | Surface | What varies by agent | Failure when it is only global | |---|---|---| -| Tools | Available capabilities, a child-only tool, or a scoped replacement for one implementation | The model receives excess authority, or a child-specific tool leaks into every prompt | +| Tools | Available capabilities, a child-only tool, or a scoped replacement for one implementation | The model receives the wrong tool view, or a child-specific tool leaks into every prompt | | Prompt state | Persona, instructions, variables, and [Code Mode](../feature/2026-06-15-code-mode.md) SDK declarations | Every agent receives the same instructions or runtime facts | | Live policy | Hooks, execution guards, result observers, and continuation rules | A listener intended for one agent can alter another agent's work | | Lifetime | Cleanup when the agent fails, is cancelled, is disposed, or loses its owner | Registrations outlive the agent or disappear before its final work settles | -Two consistency requirements make the problem deeper than filtering a list. First, the model-visible and executable views must agree: a hidden tool must not remain callable, and an advertised tool must not fail merely because execution used a different registry view. This agreement must also cover Code Mode bindings and UI presentation. +Three consistency requirements make the problem deeper than filtering a list. First, the model-visible and executable views must agree: a hidden tool must not remain callable, and an advertised tool must not fail merely because execution used a different registry view. This agreement must also cover Code Mode bindings and UI presentation. Second, some rules are invariants rather than cooperative extensions. An ordinary middleware listener may replace a prompt assembly, turn an allow into a deny, rewrite a result, force another model step, or short-circuit listeners registered after it. Structured output therefore cannot rely on being “first” or “last” in an extensible listener chain; the owning service needs a final boundary for rules that later listeners must not undo. Third, accepting a value must transfer ownership of the exact value that was checked. TypeScript `readonly` annotations disappear at runtime, callers and providers may expose stateful accessors, and a validation pass followed by a clone reads mutable input twice. Identity fields, schemas, session data, requests, and results therefore need runtime boundaries that capture each caller-owned field once, materialize data once, and expose only owner-controlled snapshots. Otherwise the checked, executed, logged, and observed views can diverge even when scope resolution itself is correct. +The failure does not require TypeScript or threads. One JavaScript getter is enough to make a two-read boundary validate one name and store another: + +```js +let reads = 0 +const input = { + get name() { + reads += 1 + return reads === 1 ? 'safe_tool' : 'different_tool' + }, +} + +// Wrong: validation and storage observe different values. +validateName(input.name) +storeName(input.name) + +// Right: capture once, then validate and store that capture. +reads = 0 +const acceptedName = input.name +validateName(acceptedName) +storeName(acceptedName) +``` + The subagent API makes these requirements concrete. Two concurrent children can request different personas, tool filters, and output schemas. Those requests are honest only when each child receives an independently owned view and when its terminal-output protocol survives unrelated plugins. ## Decision -Each live agent owns a registration context named `agent.ctx`, and services expose narrow owner-final policy boundaries where ordinary middleware ordering is not strong enough. Together these choices make one agent's world composable with normal plugin APIs while keeping authority, observation, and cleanup aligned. +Each live agent owns a registration context named `agent.ctx`, and services expose narrow owner-final policy boundaries where ordinary middleware ordering is not strong enough. Together these choices make one agent's registration view composable with normal plugin APIs while keeping visibility, observation, and cleanup aligned. The design has five parts: @@ -37,11 +59,90 @@ The design has five parts: | Owner-final policy | Prompt protection, tool guards, final tool-result observation, and terminal turn stopping run at service-owned boundaries | Invariants do not depend on listener registration order | | Boundary ownership | Services capture fixed fields once, materialize lossless-JSON data once, and publish owner-controlled views | Validation, execution, persistence, and telemetry cannot observe different values from one call | +### One public call shows the composition model + +The common case uses ordinary registration APIs through the setup context. Code blocks in this RFC are focused examples and start from a fresh initialized application unless one explicitly continues another. Here `ctx` is a plugin's service context, `setup(agentCtx)` receives the unpublished agent's scoped context, and helpers such as `AgentId`, `SessionId`, and `CallId` construct opaque IDs. Assume the deployment already registered global `read` and `bash` tools; this creates a reviewer whose persona, global-tool filter, and extra reporting tool exist only for that agent and disappear with its handle: + +```js +const reviewSummaryTool = { + name: 'review_summary', + description: 'Return the review summary.', + parameters: { type: 'object', properties: {} }, + async execute() { + return [{ type: 'text', text: 'review complete' }] + }, +} + +const handle = await ctx.agents.create({ + agentId: AgentId('reviewer'), + sessionId: SessionId('reviewer-session'), + agentOptions: { model: 'model-name' }, + setup(agentCtx) { + agentCtx.systemPrompt.section({ + name: 'deployment:persona', + order: 0, + text: 'Review code, but do not modify files.', + }) + agentCtx.tools.restrict({ allow: ['read'] }) + agentCtx.tools.register(reviewSummaryTool) + }, +}) + +const reviewer = handle.agent +ctx.tools.get('read', reviewer) // global tool, visible +ctx.tools.get('bash', reviewer) // undefined: filtered global tool +ctx.tools.get('review_summary') // undefined: not global +ctx.tools.get('review_summary', reviewer) // child-only definition + +await handle.dispose() +ctx.tools.get('review_summary', reviewer) // undefined: scope was unwound +``` + +The rest of this RFC explains why the short setup above needs scope-aware resolution, unpublished construction, ordered teardown, and owner-final policy. + +### Security and authority are explicit non-goals + +Scoped contexts are trusted in-process registration composition, not a sandbox, authorization ledger, or parent-to-child authority lattice. A plugin with a Cordis context executes in the same process and can call the services injected into that context. Scope filtering decides which registered contribution participates in one operation and who cleans it up; it does not prove that a child can do no more than its parent. + +#### Flat scopes do not enforce a parent-to-child subset + +Flat lookup makes that boundary visible. Parent lifetime ownership does not cause the child to inherit the parent's restriction, and a child-local registration is merged after the global filter: + +```text +global tools = { read, bash } +parent restriction = allow { read } +parent scoped registrations = { delegate } +child restriction = none +child scoped registrations = { deploy } + +visible(parent) = { read, delegate } +visible(child) = { read, bash, deploy } +``` + +Through `delegate`, a parent can deliberately start this child and indirectly obtain work performed with `bash` or `deploy`. This RFC neither prevents nor blesses that arrangement; deployments that need a non-escalation guarantee require a separate authority design and enforcement boundary. + +#### Restrictions are live views, not grant snapshots + +Restrictions also resolve against a live global registry rather than an immutable authorization snapshot. A deny-list names removals, while an allow-list names the complete retained global set: + +```text +at time 0: + global tools = { read, bash } + deny { bash } view = { read } + allow { read } view = { read } + +after registering global tool web: + deny { bash } view = { read, web } + allow { read } view = { read } +``` + +Scope-local tools are merged after either filter. There is no separate authority-versus-visibility ledger, frozen creation-time grant snapshot, parent-subset rule, future-tool grant API, or generic capability/output/terminal tag system here. `run_code` and `structured_output` have explicit protocol-owned treatment described below; they do not imply a general security taxonomy. Those questions are separate design work rather than hidden promises of scoped contexts. + Three domain terms recur below. A **Session** is one agent run's append-only event log, from which model history and durable replay are derived. **Lossless JSON** means JSON primitives plus dense arrays and plain objects that can be copied without changing meaning; the boundary rejects sparse arrays, cycles, exotic prototypes, non-finite numbers, negative zero, `undefined`, `bigint`, functions, and symbols instead of coercing or erasing them. **Code Mode** presents the model with a generated software-development-kit interface and a reserved `run_code` transport, rather than advertising every end-capability as a native tool. Ownership stays with the component that can enforce each fact. The scope package owns scope tags and carrier construction; each registry owns acceptance snapshots and resolution; the caller owns the programmatic agent lifetime it requested; the concrete agent factory owns identity reservation, setup, publication, and structural invalidation of agents that still depend on it; the session owns accepted history; the tool and subagent services own their pipeline records; and each workflow run captures its holder-bound dependencies and owns its cancellation after the engine returns it. A caller never validates a value that another component later rereads from the caller's mutable object. -The scope is flat. An agent resolves the deployment-global layer plus its own layer; a child does not inherit registrations from its parent's scope. Parent/child lineage remains explicit session data, and parent-owned disposal links lifetimes without silently inheriting authority. +The scope is flat. An agent resolves the deployment-global layer plus its own layer; a child does not inherit registrations from its parent's scope. Parent/child lineage remains explicit session data, and parent-owned disposal links lifetimes without inheriting registrations. The core implementation lives in [`dsh-scope`](../../../../packages/core/scope/README.md), [`dsh-agent`](../../../../packages/core/agent/README.md), [`dsh-agent-loop`](../../../../packages/core/agent-loop/README.md), [`dsh-session`](../../../../packages/core/session/README.md), [`dsh-system-prompt`](../../../../packages/core/system-prompt/README.md), and [`dsh-tools`](../../../../packages/core/tools/README.md). The composition example spans [`dsh-subagent`](../../../../packages/subagent/subagent/README.md), [`dsh-subagent-inprocess`](../../../../packages/subagent/subagent-inprocess/README.md), and [`dsh-workflow-workerthread`](../../../../packages/workflow/workflow-workerthread/README.md). The [generated Cordis event catalog](../../../cordis-catalog/events.md) is the exhaustive event-signature reference; this RFC explains why the contracts have their current shape. @@ -53,10 +154,29 @@ The design relies on four framework ideas: contexts, effects, waterfall events, A Cordis `Context` is the object through which a plugin reaches services such as `ctx.tools`, `ctx.systemPrompt`, and `ctx.sessions`. A service method can recover the context through which it was accessed, so the service can tell whether a call came from an ordinary plugin context or from an agent's scoped context without adding a `scope` parameter to every registration API. -A context also carries a capability view. A derived context reaches the services injected into the plugin that created it. Handing out `agent.ctx` therefore hands out the agent loop's injected service surface; it is not an ambient root context. +A context also carries an injected dependency view. A derived context reaches the services injected into the plugin that created it. Handing out `agent.ctx` therefore hands out the agent loop's injected service surface; it is not an ambient root context or a security confinement boundary. Factory delegation uses two contexts whose jobs must remain separate. The registry derives a caller-bound context carrying the fiber and scope from which `ctx.agents.create()` or `resume()` was called and passes it explicitly as `ownerCtx`; those facts identify the fiber and optional parent agent that own the requested lifetime. When the registered factory is itself a Cordis service, the registry also invokes it through a traced receiver, which preserves the factory's own injected dependency origin. A plain object that merely implements the factory methods receives the same explicit `ownerCtx` without depending on Cordis tracing. Conflating these roles would either attach the agent to the factory registrant instead of the caller or make the concrete loop resolve dependencies from the wrong service view. +The object before a service or event method selects the registration origin. The method itself does not need an extra agent parameter: + +```js +ctx.tools.register(globalTool) +agent.ctx.tools.register(agentOnlyTool) + +ctx.on('tools/result', globalObserver) +agent.ctx.on('tools/result', agentObserver) +``` + +Factory calls preserve caller ownership and factory dependency lookup as separate values: + +```text +callerCtx.agents.create(options) + ownerCtx = context carrying callerCtx's fiber and scope + factoryThis = concrete factory traced through ownerCtx + Reflect.apply(capturedCreateAgent, factoryThis, [ownerCtx, options]) +``` + ### Effects give registrations an owner A Cordis effect is work whose cleanup belongs to a runtime unit called a fiber. Tool registration, prompt contribution, and event subscription are effects, so disposing their fiber unwinds them on normal teardown, failure, or hot reload. @@ -65,12 +185,39 @@ Ownership must exist before effect setup can call arbitrary code. The vendored F `dsh-scope` mounts a no-op plugin fiber for each scope. The plugin contributes no behavior; its fiber is the ownership bucket for everything registered through the scoped context. +In its simplest form, an effect is a setup function that returns its cleanup. Cordis also supports generator effects that compose child effects in a chosen order. In either form Cordis records the wrapper before calling setup, so even setup-triggered reentrant teardown can find and await it: + +```js +ctx.effect(() => { + const resource = openResource() + return async () => { + await resource.close() + } +}) +``` + ### A waterfall is ordered around-middleware A Cordis waterfall is an extensible middleware chain. A listener calls `next()` to delegate, can inspect or replace the downstream result, and can return without calling `next()` to short-circuit everything inside it. This flexibility is useful for cooperative transformations, but registration order is not an invariant boundary. A later plugin can prepend another listener, a wrapper can replace the downstream result after `next()` returns, and a short-circuit can prevent inner listeners from running at all. +The code shape is ordinary around-middleware. Calling `next()` includes downstream work; returning directly skips that listener's downstream listeners and base implementation: + +```js +ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { + const downstream = await next() + return { + ...downstream, + sections: [...downstream.sections, extraSection], + } +}) + +ctx.on('system-prompt/assemble', async () => replacementAssembly) +// This listener skips its downstream/base. An outer listener that already +// awaited next() still resumes around replacementAssembly. +``` + ### The dispatch receiver selects scoped listeners Cordis filters event listeners using the dispatch receiver, the object exposed as `this` inside a function-style listener. `dsh-scope` supplies a receiver carrying the operation's scope key, so the event system can admit global listeners plus listeners registered for that key and reject listeners belonging to other agents. @@ -118,6 +265,18 @@ The scope key is an opaque object compared by identity. The harness uses the liv The property is deliberately not treated as the authoritative scope tag. A nested scope can install a nearer scope key while still inheriting the original `ctx.agent` association, so lower-level services resolve layers with `scopeOf(context)`. In normal agent composition the two point at the same live agent; the separation keeps the generic scope primitive independent of the agent package. +The distinction appears when a plugin deliberately nests another scope: + +```js +const auditKey = {} +const auditScope = createScope(agent.ctx, auditKey) + +auditScope.ctx.agent === agent // true: inherited ergonomic association +scopeOf(auditScope.ctx) === auditKey // true: authoritative nearest scope tag + +await auditScope.dispose() +``` + ### The scope primitive has separate public and composite disposal forms `dsh-scope` exposes the minimum operations needed to create a layer, read it, target events, and dispose it. “Quiescent” here means that every asynchronous cleanup registered in the scope has settled and no teardown work remains in flight. @@ -190,15 +349,32 @@ registerTool(context, definition): The reserved Code Mode transport uses the same frozen-definition contract even though it lives outside the ordinary layers. -### Tool restrictions reduce end capabilities without removing transport +### Tool restrictions filter the global view without removing transport -A tool restriction masks the global end-capability layer for one agent, while tools registered in that agent's own layer are explicit grants. Multiple restrictions intersect, so separately installed policies can only reduce the global surface. +A tool restriction masks the global end-capability layer for one agent, while tools registered in that agent's own layer are merged afterward. Multiple restrictions intersect, so separately installed filters can only reduce the global part of the view; they do not filter scope-local registrations. The restriction reads `allow` and `deny` once, snapshots those exact values, rejects an empty filter, and validates named tools against the pre-restriction capability universe. The same captured arrays are then enforced, so a stateful accessor cannot pass one policy through validation and install another. A restricted-away tool behaves like an unknown tool at execution, avoiding disclosure of a hidden global implementation. [Code Mode](../feature/2026-06-15-code-mode.md)'s `run_code` is not an end capability. It is a reserved presentation transport that carries calls to the visible end capabilities, so the registry keeps it outside both global and scoped registration layers: restrictions cannot remove it, a scoped tool cannot shadow it, and configuration cannot explicitly allow or deny it. Without this exception, a restriction could leave the generated SDK in the prompt but remove the only way to invoke it. -The registry still uses one executable visibility view. It first resolves restricted global capabilities plus scoped grants, then appends the reserved transport in non-native modes; registry-owned prompt schemas, lookup, execution, Code Mode SDK bindings, timeout lookup, inspection, and UI presentation all consume that view. +The registry still uses one executable visibility view. It first resolves filtered global capabilities plus scope-local registrations, then appends the reserved transport in non-native modes; registry-owned prompt schemas, lookup, execution, Code Mode SDK bindings, timeout lookup, inspection, and UI presentation all consume that view. + +The public lookup API exposes the exact same resolution used for prompt schemas and execution: + +```js +ctx.tools.register(readTool) +ctx.tools.register(bashTool) + +agent.ctx.tools.restrict({ allow: ['read'] }) +agent.ctx.tools.register(reviewSummaryTool) + +ctx.tools.get('read', agent) // visible global definition +ctx.tools.get('bash', agent) // undefined: filtered global definition +ctx.tools.get('review_summary', agent) // visible scope-local definition +ctx.tools.get('review_summary') // undefined: absent from global view +``` + +Executing `bash` for this agent follows the same lookup and produces the ordinary unknown-tool error; it does not bypass the filter through a separate execution registry. The [security non-goal](#security-and-authority-are-explicit-non-goals) explains why later global registrations and scope-local registrations are not an authorization snapshot. The guarantee covers the tool registry's contribution. A plugin can deliberately use the lower-level `systemPrompt.tools()` API or assembly waterfall to add an unrelated wire schema; that plugin owns the matching executable behavior and any ordering it introduces. Owner protection preserves reserved named infrastructure without turning the system-prompt service into a validator for unrelated contributions. @@ -227,6 +403,24 @@ The operation being described determines the key; callers cannot attach an unrel | `session/created`, `session/disposed`, `session/event`, `session/flush` | The owner scope captured when the session enters the store | | `subagent/start`, `subagent/end` | The delegating parent agent | +The observable rule is global plus matching, not global plus every scoped listener. This example drives a real tool execution so routing and notification use the same accepted `agent` subject: + +```js +const seen = [] +ctx.tools.register(readTool) +ctx.on('tools/result', () => seen.push('global')) +agentA.ctx.on('tools/result', () => seen.push('A')) +agentB.ctx.on('tools/result', () => seen.push('B')) + +await ctx.tools.execute({ + callId: CallId('read-1'), + name: 'read', + arguments: {}, + agent: agentA, +}) +seen // ['global', 'A'] +``` + Approval requests cross an asynchronous answer boundary, so the service snapshots the accepted record synchronously. It preserves the exact agent and abort-signal identities but copies the scalar fields, captures the agent's session once, and uses that one snapshot for `approval/asked`, scoped dispatch, cancellation, policy, and `approval/decided`. Mutating the caller-owned record after `request()` returns therefore cannot split the audit pair or redirect the question to another agent's listeners. The dispatch rule can be read independently of Cordis internals: @@ -252,16 +446,65 @@ Function-style listeners receive the carrier as `this`, and agent event APIs all Binding matters for classes with JavaScript private fields: a method called with the proxy itself as receiver would fail the runtime private-field identity check. The carrier therefore uses a dedicated surrogate proxy target with its own immutable composed-filter slot, while ordinary property access, writes, own-key visibility, methods, invocation, and construction delegate to the real subject; callable carriers also preserve whether the subject is constructable. -The composed filter is an authorization boundary, not an ordinary exposed callback. It invokes a subject's pre-existing filter with stable references to the built-in `Reflect.apply` and `Function.prototype.call` operations, pins its own `.call` to that captured built-in, and freezes the callable. Code holding the subject or carrier therefore cannot replace either `.call` property to turn a scoped predicate into an always-allow predicate. Keeping the filter on the surrogate also means a filter property pinned on the subject before, during, or after carrier construction cannot trigger a Proxy invariant that silently replaces scope isolation with the subject's raw filter. +A minimal JavaScript example shows why method binding is observable rather than a TypeScript detail: + +```js +class Subject { + #count = 0 + increment() { this.#count += 1 } +} + +const subject = new Subject() +new Proxy(subject, {}).increment() // TypeError: proxy lacks Subject's private identity + +const carrier = scopeTarget(subject, subject) +carrier.increment() // works: method is bound to subject +carrier === subject // false: dispatch carrier has distinct identity +``` + +The composed filter is a listener-selection correctness boundary, not an ordinary exposed callback. It invokes a subject's pre-existing filter with stable references to the built-in `Reflect.apply` and `Function.prototype.call` operations, pins its own `.call` to that captured built-in, and freezes the callable. Code holding the subject or carrier therefore cannot accidentally replace either `.call` property and turn the scoped predicate into an always-admit predicate. Keeping the filter on the surrogate also means a filter property pinned on the subject before, during, or after carrier construction cannot trigger a Proxy invariant that silently replaces scope filtering with the subject's raw filter. The surrogate must remain extensible so its reported own-key view can follow the subject. For non-overlay properties owned by the subject, descriptor queries preserve values and flags except that `configurable` is reported as `true`, which is the only Proxy-safe description of a property the extensible surrogate does not itself own. For the same reason, defining a property through the carrier is supported only when the descriptor explicitly says `configurable: true`; an omitted or false flag is rejected before the subject is touched. The carrier is intentionally not identity-equal to the subject; event arguments carry the real object whenever identity matters. -`Scoped` is a TypeScript-only marker that requires this carrier at declared scoped dispatch sites. It improves authoring but adds no runtime security, so runtime marks and development invariants check the same contract for JavaScript, casts, and hand-written dispatches. +`Scoped` is a TypeScript-only marker that requires this carrier at declared scoped dispatch sites. It improves authoring but adds no runtime enforcement by itself, so runtime marks and development invariants check the same contract for JavaScript, casts, and hand-written dispatches. These checks detect routing mistakes; they do not confine a hostile in-process plugin. ## Agent creation and teardown An agent's scope, session, registry entry, and driver form one transaction with two ownership edges. The caller context owns the work it requested and receives the only consumer-facing teardown capability; the concrete `AgentLoop` provider is a structural co-owner because the live agent continues to use the provider's injected services. Either edge deactivates the transaction and converges on the same ordered, memoized quiescence boundary. Setup finishes before publication, and publication is synchronous and rollback-covered rather than magically atomic. +The public contract is simple: setup may await while both identities remain absent from their registries; fulfillment publishes the complete agent; disposal removes it again. + +```js +const setupGate = Promise.withResolvers() +const agentId = AgentId('reviewer') +const sessionId = SessionId('reviewer-session') +const creating = ctx.agents.create({ + agentId, + sessionId, + agentOptions: { model: 'model-name' }, + async setup(agentCtx) { + await setupGate.promise + agentCtx.systemPrompt.section({ + name: 'deployment:persona', + order: 0, + text: 'Review the change.', + }) + }, +}) + +ctx.agents.get(agentId) // undefined while setup is pending +ctx.sessions.get(sessionId) // undefined while setup is pending +setupGate.resolve() + +const handle = await creating +ctx.agents.get(agentId) === handle.agent // true after publication +ctx.sessions.get(sessionId) === handle.agent.session // true after publication + +await handle.dispose() +ctx.agents.get(agentId) // undefined after quiescent teardown +ctx.sessions.get(sessionId) // undefined after quiescent teardown +``` + ### Create and resume reserve identities before asynchronous work Programmatic create and resume reserve both the agent ID and session ID before work that can await. Create prepares a fresh or seeded session; resume first loads and reconstructs the persisted session. Both paths then construct the agent, mint `agent.ctx`, and install the complete teardown skeleton before awaiting setup. @@ -421,7 +664,7 @@ For the concrete AgentLoop transaction, `agent/disposed` runs after the driver i Provider co-ownership is specific to resources that remain structurally dependent on their provider. An AgentLoop-created agent continues to resolve the loop's injected services, so loop unload must stop it. A worker workflow run instead captures its holder-bound `SubagentService` handle synchronously at `start()` and stores that independent dependency on the run; unloading `WorkerWorkflowEngine` removes the ability to start new runs but does not revoke an already returned run or prevent its later worker message from starting a child. The two lifetimes differ by dependency shape, not by a blanket rule that every service must own every value it creates. -Parent-owned subagents use explicit ownership rather than capability inheritance. The driver creates one run-owner fiber under `parent.ctx` and invokes the child factory through that fiber, so lifecycle ownership exists before setup or publication begins; disposing a parent reaches its descendants even if a delegating tool never reaches its own `finally`. The child still receives a newly minted scope and resolves only global plus child-scoped capabilities. +Parent-owned subagents use explicit ownership rather than registration inheritance. The driver creates one run-owner fiber under `parent.ctx` and invokes the child factory through that fiber, so lifecycle ownership exists before setup or publication begins; disposing a parent reaches its descendants even if a delegating tool never reaches its own `finally`. The child still receives a newly minted scope and resolves only global plus child-scoped registrations. ## Owner-final policy boundaries @@ -475,7 +718,7 @@ The registry materializes `arguments` in one lossless-JSON traversal and deep-fr The registry assigns each pipeline trip a frozen, property-free `ToolExecutionToken`; callers cannot choose that token. The execution is identity-stable, not fully immutable, while the pipeline runs: its `token`, `callId`, `name`, `agent`, optional opaque `parent` token, and detached `arguments` are non-writable and non-configurable from the first policy listener onward. `signal` is the only operational field; an around-dispatch wrapper may add, replace, or remove it. The registry freezes the complete execution before outcome observation. -Stable identity prevents a listener from changing which capability or scope was authorized after policy ran. It also gives commit-style observers a safe `WeakMap` key even when an adapter reuses a model call ID. +Stable identity prevents a listener from changing which tool or scope the pipeline accepted after policy ran. It also gives commit-style observers a safe `WeakMap` key even when an adapter reuses a model call ID. For a nested transport dispatch, `parent` carries only the enclosing execution's opaque token rather than its live object. Code Mode sets an SDK sub-call's `parent` to the outer `run_code` execution's `token`, so an observer can correlate the two outcomes without receiving a reference that could mutate the still-running outer wrapper. @@ -512,6 +755,24 @@ prepareExecution(input): This one-way result makes the boundary monotonic. Pre-execution hooks can still compose ordinary allow, deny, and ask decisions; an ask resolves through the optional `ctx.approval` seam, where only `allowed-once` becomes allow and an absent channel or any non-grant becomes deny before guards run. No listener ordering can convert a guard denial back into dispatched work. A denied call still continues through result transformation and final observation as an error outcome. +The two APIs have deliberately different strength. A waterfall listener may return an allow decision, but the later guard has no corresponding allow result: + +```js +agent.ctx.on( + 'tools/pre-execute', + async () => ({ kind: 'allow' }), + { prepend: true }, +) + +agent.ctx.tools.guard(execution => + execution.name === 'bash' + ? 'reviewer agents are read-only' + : undefined, +) +``` + +Even a later prepended allow listener cannot bypass this guard because the registry evaluates guards after the complete waterfall. + ### `tools/result` observes the authoritative live outcome The complete live pipeline is `tools/pre-execute` → monotonic guards → `tools/execute` → `tools/post-execute` → `tools/result`. The first three named events are transformable waterfalls; `tools/result` is an awaited, observe-only notification after all transforms and the registry's outer error normalization. At each untrusted result boundary, the registry captures every top-level field once and materializes the complete authoritative outcome as detached lossless JSON. Immediately before observation it materializes that owned outcome again and deep-freezes the shared listener snapshot. An invalid tool or listener result becomes a normal JSON-safe `isError` outcome instead of reaching observers as apparent success and failing later at the session log. @@ -520,7 +781,7 @@ Every `tools/result` listener receives the same frozen execution and deep-frozen `tools/result` is not the durable session event `tool/result`. The live notification belongs to the registry and also fires for direct programmatic executions; the agent loop subsequently appends `tool/result` to the session log for replay, UI reconstruction, and model history. A policy that needs the final in-process verdict uses the former, while a consumer that needs persisted transcript state uses the latter. -The entire registry method reads like one authority ladder: +The entire registry method reads like one execution-decision pipeline: ```text execute(input): @@ -575,7 +836,7 @@ Ordinary continuation remains extensible. The loop computes a default, runs the The scoped serial `agent/turn-stop` checkpoint runs after that folding. Its strict serial helper consults listeners in order until one returns a non-`undefined` value; a listener returns `{ action: 'stop' }` or abstains with `undefined`. The dedicated helper exists because ordinary Cordis serial dispatch treats `null` and `false` as framework abstentions, while this public contract has exactly one abstention value. A stop is terminal, so later listeners and pending steering cannot restore continuation. A malformed result, including `null` or `false`, or a throwing policy closes the current turn with an error while leaving the driver available for later work. -Terminal stop deliberately discards steering while preserving ordinary queued prompts. Its terminal state remains in force through `turn/end` and the durability flush, so steering added by continuation, turn-close, or flush listeners cannot escape through the loop's late-steering fallback into another step or turn. This is the explicit exception to the normal rule that leftover steering becomes input for another turn. The authority is reserved for protocols, such as a completed structured child, where further model work would violate the result contract. +Terminal stop deliberately discards steering while preserving ordinary queued prompts. Its terminal state remains in force through `turn/end` and the durability flush, so steering added by continuation, turn-close, or flush listeners cannot escape through the loop's late-steering fallback into another step or turn. This is the explicit exception to the normal rule that leftover steering becomes input for another turn. The stronger terminal control is reserved for protocols, such as a completed structured child, where further model work would violate the result contract. ```text afterSuccessfulStep(turn): @@ -605,13 +866,67 @@ The queued-prompt FIFO is separate and is never drained by terminal stop. In-process subagents demonstrate how the scope, lifecycle, and final-policy pieces compose. A provider builds the child's world during unpublished setup, then lets the ordinary agent lifecycle own it. +The caller-facing seam separates acceptance, readiness, result settlement, cancellation, and disposal. This example assumes the spawn backend is loaded under its configurable default provider name, `spawn`, `parent` is top-level (depth 0), and a global `read` tool has already been registered. A caller observes readiness before treating the child as live and always disposes the run: + +```js +const run = ctx.subagents.start('spawn', { + parent, + prompt: [{ type: 'text', text: 'Review this change.' }], + persona: 'You are a careful code reviewer.', + toolFilter: { allow: ['read'] }, + maxDepth: 2, + outputSchema: { + type: 'object', + properties: { summary: { type: 'string' } }, + required: ['summary'], + additionalProperties: false, + }, +}) + +try { + await run.started + const result = await run.result + // result.structured exists only after a successful committed capture. +} finally { + await run.dispose() +} +``` + ### Inputs and ownership are fixed before asynchronous creation +This section follows a child from provider/request acceptance through the service wrapper and then through the workflow bridge. Each layer captures its boundary before arbitrary asynchronous work and owns the cleanup it may need to start. + +#### Provider and request acceptance own the child boundary + Provider registration first freezes an acceptance snapshot of the provider name, capability flags, parent-context descriptor, and `start` callback; the callback is bound to the original provider object so its intentional internal state stays live. Lookup, validation, model-facing wording, dispatch, lifecycle notifications, and hot-reload cleanup all use that snapshot. Mutating or reusing the caller's provider object later therefore cannot rename a live entry, change its advertised powers, replace its callback, or make its disposer delete the wrong key. Starting a run reads every top-level request field once before capability validation, then snapshots every accepted field before asynchronous owner setup. This order makes checked and delegated capabilities identical even for a JavaScript caller with stateful accessors. Fixed scalars are checked at the same boundary: `maxDepth` must be a non-negative safe integer and `persona` must be a string. The parent and abort signal are retained as identity capabilities but never reread from the mutable request record; tool filters, seed events, agent options, output schema, and prompt are detached through the one-pass lossless-JSON materializer. The exported in-process driver repeats this boundary for direct callers before it awaits run-owner activation, including taking one seed snapshot from which it derives both the child prefix and `seedLength`. Later caller mutation therefore cannot change lifecycle scope, configuration, the schema enforced by the capture tool, or the prompt eventually logged and sent. -The driver first installs provider ownership. Only after that succeeds does it attach the request's abort listener and create one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves neither a child nor an orphaned listener. Calling `runOwner.ctx.agents.create()` gives the child factory an explicit `ownerCtx` carrying the run-owner fiber and scope, while the registry's traced factory receiver preserves AgentLoop's injected dependency origin. Parent teardown, provider teardown, and manual run disposal all dispose this same run-owner node; moving it out of the active state synchronously prevents an unpublished setup from publishing afterward, while all three paths follow one quiescence promise. This structured ownership does not change the child's flat capability view. +Depth validation is intentionally repeated at every public entry path, while one seam-owned helper keeps the accepted domain identical: + +```text +tool-subagent plugin load: + schema requires natural <= Number.MAX_SAFE_INTEGER + assertSubagentMaxDepth(config.maxDepth) + +SubagentService.start(request): + capture request.maxDepth once + assertSubagentMaxDepth(captured maxDepth) + +startInProcessRun(request): + capture request.maxDepth once + assertSubagentMaxDepth(captured maxDepth) + parentDepth = depthOf(parent) # also a non-negative safe integer + childDepth = parentDepth + 1 + if childDepth is not a safe integer: throw RangeError + if maxDepth is defined and childDepth > maxDepth: throw SubagentDepthError +``` + +The derived-value check is separate from validating either input: `Number.MAX_SAFE_INTEGER` is a valid stored parent depth, but adding one cannot produce a contract-valid child depth. The driver rejects that overflow even when no request-level `maxDepth` cap was supplied. + +The driver first installs provider ownership. Only after that succeeds does it attach the request's abort listener and create one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves neither a child nor an orphaned listener. Calling `runOwner.ctx.agents.create()` gives the child factory an explicit `ownerCtx` carrying the run-owner fiber and scope, while the registry's traced factory receiver preserves AgentLoop's injected dependency origin. Parent teardown, provider teardown, and manual run disposal all dispose this same run-owner node; moving it out of the active state synchronously prevents an unpublished setup from publishing afterward, while all three paths follow one quiescence promise. This structured ownership does not change the child's flat registration view. + +#### The service wrapper orders readiness, results, and lifecycle The provider's run separates acceptance from publication with `started: Promise`, but the service does not expose that caller-owned handle directly. It captures `id`, `started`, `result`, and each method once, binds methods to the provider-owned run handle, and returns a frozen service-owned wrapper. Capturing `dispose` first also preserves a rollback capability if a later accessor or method check reveals a malformed handle. The wrapper installs its shared disposal promise before invoking the raw provider callback, so synchronous reentry through the returned wrapper and ordinary repeat calls join one provider disposal rather than slipping through a not-yet-assigned memo. If the raw disposer directly returns that same reentrant wrapper promise, the service rejects the cyclic provider contract instead of awaiting a promise that depends on itself forever. @@ -654,7 +969,13 @@ SubagentService.start(...): on fulfillment, emit subagent/start and then buffered or eventual subagent/end on rejection, discard buffered lifecycle telemetry return serviceRun immediately +``` +#### The workflow bridge closes readiness and settlement races + +Every downstream protocol that announces a subagent must honor the same boundary. The workflow worker bridge therefore registers the returned run before waiting, observes and snapshots `result` immediately, and sends `ChildStarted` only after `started` fulfills while admission remains open. A readiness rejection is refused and host-disposed; `ChildStartError` is sent while worker-message admission remains open, and an already-retired exact run is not cleaned twice. Provider `start()` is itself arbitrary code and may synchronously reenter workflow cancellation before its returned run reaches that registry. The bridge attaches both promise observers, re-checks terminal admission immediately after `start()` returns and again at readiness, and turns a closed boundary into identity-guarded cancellation, disposal, and refusal rather than late worker admission or lifecycle announcement. An arbitrary provider may still fulfill its own `started` promise after the workflow boundary; the bridge refuses and cleans up that attempt instead of claiming it can undo provider-side publication. + +```text Workflow worker bridge after receiving returnedRun: register the run so cancellation can reach pre-publication work attach result settlement handlers immediately and snapshot the outcome @@ -700,8 +1021,6 @@ Host at physical worker exit: do not repeat explicit child cancellation ``` -Every downstream protocol that announces a subagent must honor the same boundary. The workflow worker bridge therefore registers the returned run before waiting, observes and snapshots `result` immediately, and sends `ChildStarted` only after `started` fulfills while admission remains open. A readiness rejection is refused and host-disposed; `ChildStartError` is sent while worker-message admission remains open, and an already-retired exact run is not cleaned twice. Provider `start()` is itself arbitrary code and may synchronously reenter workflow cancellation before its returned run reaches that registry. The bridge attaches both promise observers, re-checks terminal admission immediately after `start()` returns and again at readiness, and turns a closed boundary into identity-guarded cancellation, disposal, and refusal rather than late worker admission or lifecycle announcement. An arbitrary provider may still fulfill its own `started` promise after the workflow boundary; the bridge refuses and cleans up that attempt instead of claiming it can undo provider-side publication. - Cancellation before readiness is a publication decision, not merely a flag for later result mapping. The in-process run synchronously deactivates its owner fiber. If cancellation lands before publication, the factory's liveness check prevents either creation edge. If it begins synchronously inside `session/created`, `agent/created`, or `agent/session-start`, the publication barrier lets the current notification phase unwind without revoking its world, the next liveness check prevents every later phase and driver start, and rollback pairs every creation edge that already began. In either case `started` rejects, no `subagent/start` or `subagent/end` is emitted, and the run result settles as `aborted`. Receipt of the worker's `Result` message is the workflow host's atomic first-wins boundary. The worker queues that message before its own settlement-reap `ChildCancel` messages, so same-port FIFO prevents an internal child callback from masquerading as earlier run cancellation. Each contender records its claim before its own callback fanout: external `cancel()` records its reason first, while Result receipt snapshots any earlier cancellation and claims the resulting terminal outcome before invoking settlement-cleanup provider code. A caller, signal, or dispose cancellation already in flight therefore overrides a non-cancelled worker report, while the report wins otherwise. Before exposing that chosen result, the host drives both permitted child-cancellation channels by aborting the shared request signal and calling every registered run's `cancel()`, including runs still waiting on readiness. Those calls are settlement-only cleanup, and the terminal claim makes a reentrant `WorkerRun.cancel()` a side-effect-free loser rather than merely repairing its result afterward. Host fanout and the worker's FIFO-later `ChildCancel` can both reach the explicit channel, so a per-call gate invokes each provider `cancel()` at most once; the seam does not require that callback to be idempotent. Explicit child cancel callbacks are contained independently so one throwing callback cannot starve peers or alter settlement. @@ -716,7 +1035,26 @@ Parent teardown reaches `runOwner` by nesting; the provider and returned run han A child persona is a scoped `deployment:persona` section that shadows the deployment-wide section. A child tool filter is a scoped restriction over global end capabilities. Omitted filters remain omitted; a materialized empty `allow` list means “allow nothing” and is not confused with absence. -The child's persona, filter, and structured runtime are installed inside factory setup. The common run-owner fiber gives structured-concurrency-style teardown without importing the parent's capability layer into the child. +The child's persona, filter, and structured runtime are installed inside factory setup. Persona and filtering use public registration methods directly. The package-internal structured helper groups the public tool, prompt, protection, guard, and listener registrations that form one terminal protocol: + +```js +let structured +const setup = childCtx => { + if (persona !== undefined) { + childCtx.systemPrompt.section({ + name: 'deployment:persona', + order: 0, + text: persona, + }) + } + if (toolFilter !== undefined) childCtx.tools.restrict(toolFilter) + if (schema !== undefined) { + structured = attachStructuredRuntime(childCtx, schema) + } +} +``` + +The common run-owner fiber gives structured-concurrency-style teardown without importing the parent's registration layer into the child. The filter affects the child's global tool view; it is not a parent-derived authority ceiling. ### Structured output is a child-owned terminal protocol @@ -784,6 +1122,17 @@ Scope mistakes are fail-open if they merely omit a carrier, so the implementatio `agentEvents(context, agent)` couples the dispatch carrier to the agent argument, `assembleContextFor(agent)` couples prompt facts to the scope selector, and `SessionStore.flush(session)` owns lookup of the carrier captured when the session entered the store. These helpers make a mismatched subject harder to express than the correct spelling. +Their essential construction makes the coupling explicit: + +```text +assembleContextFor(agent): + return { agent, scope: agent } + +agentEvents(context, agent): + carrier = scopeTarget(agent, agent) + return dispatcher that always injects agent as the event subject +``` + ### Type markers cover every scoped event declaration Scoped agent, approval, tool, prompt, session, and subagent lifecycle events declare a `Scoped` receiver. TypeScript therefore rejects a bare subject at typed dispatch sites, including the `subagent/start` and `subagent/end` paths whose scope is the delegating parent. @@ -814,9 +1163,9 @@ Service isolation chooses one registry instance for a context, while agent compo Isolation remains appropriate for independent applications. It is too coarse for collaborating agents inside one deployment. -### Inherit the parent's scope into a child +### Inherit the parent's registrations into a child -Hierarchical capability inheritance makes lifetime convenient but silently grants every child the parent's scoped tools and policies. A flat view plus an explicit parent-owned disposer separates the two questions: the parent owns the child without conferring its authority. +Hierarchical registration inheritance makes lifetime convenient but silently copies every parent-scoped tool and policy into each child. A flat view plus an explicit parent-owned disposer separates lifetime from registration composition: the parent owns the child without importing the parent's layer. As the [security non-goal](#security-and-authority-are-explicit-non-goals) states, flat lookup does not by itself impose a child-within-parent authority relationship. ### Publish the agent before running setup @@ -832,7 +1181,7 @@ Awaited setup makes the transaction explicit and keeps the first assembly behind ### Enforce invariants with prepended waterfall listeners -A prepended listener is not necessarily outermost: another plugin can prepend later, a short-circuit can skip inner work, and an outer wrapper can replace the result after delegation. The same issue appears in prompt assembly, tool authorization, result commit, and turn continuation. +A prepended listener is not necessarily outermost: another plugin can prepend later, a short-circuit can skip inner work, and an outer wrapper can replace the result after delegation. The same issue appears in prompt assembly, tool decisions, result commit, and turn continuation. The owner-final APIs express the actual strength required by each rule: restore named canonical data, deny monotonically, observe the immutable final outcome, or stop after all ordinary continuation inputs are folded. @@ -861,16 +1210,16 @@ The main benefit is one composition model across data, behavior, and lifetime: r ### Costs and constraints -The costs are concentrated in dispatch discipline, per-scope registry state, and explicit authority boundaries that are intentionally stronger than ordinary middleware. +The costs are concentrated in dispatch discipline, per-scope registry state, and owner-final decision boundaries that are intentionally stronger than ordinary middleware. - Every scoped event dispatcher must carry the correct receiver; fused helpers, type markers, invariants, and gates exist because omission would otherwise deliver only to global listeners. -- `agent.ctx` is capability-bearing. Its available services come from the agent loop's injected context, so holders receive that deliberate service surface. +- `agent.ctx` is service-bearing. Its available services come from the agent loop's injected context, so holders receive that deliberate dependency surface; this is not confinement. - Registries maintain per-scope maps and perform a global-plus-one-layer merge for the agent lifetime. - The dispatch carrier is proxy-shaped and not identity-equal to its subject, even though method calls and property access behave like the subject. Its composed filter is frozen, and defining a property through the carrier requires an explicitly configurable descriptor because the extensible surrogate cannot truthfully expose a new non-configurable subject property. -- Flat scopes do not inherit parent capabilities; a desired child capability must be global or explicitly registered for the child. +- Flat scopes do not inherit parent registrations; a desired child-local contribution must be global or explicitly registered for the child. - `run_code` is protected transport infrastructure rather than a filterable end capability, so a policy that must forbid programs denies execution at the tool-policy layer instead of removing the transport from a Code Mode prompt. - Prompt protection restores named canonical contributions and their anchor placement, not the entire assembly; unprotected output remains extensible, while a globally protected section name is deliberately unavailable for scoped shadowing. -- Terminal turn stopping has authority to discard pending steering. That power is appropriate for owner-enforced terminal protocols and too strong for ordinary cooperative continuation policy. +- Terminal turn stopping can discard pending steering. That control is appropriate for owner-enforced terminal protocols and too strong for ordinary cooperative continuation policy. - Programmatic `ctx.agents.create()` and `ctx.agents.resume()` are asynchronous because they await setup. The direct no-setup `ctx.agentLoop.create()` path, used by configuration and programmatic callers that already have complete options, remains synchronous. - A programmatic agent is caller-owned but also structurally owned by its concrete AgentLoop provider. Reloading that provider tears the agent down even if a consumer still holds its handle, because the handle cannot keep the provider's dependency surface valid. - Ordered composition requires exact raw effect identities plus shared public quiescence promises; the dual surfaces and lifecycle-long owner sentinels reflect distinct Cordis nesting and repeated-caller requirements. @@ -878,3 +1227,5 @@ The costs are concentrated in dispatch discipline, per-scope registry state, and ### Deliberate boundaries The scope primitive is generic, but this decision applies it only where one agent needs a coherent registration view: tools, prompt state, scoped events, sessions, and in-process subagent composition. `agent.ctx` does not automatically scope every service call; filesystem policy, LLM interception, background subagent state, and other registries retain their existing seams until their own designs explicitly adopt the context rule. + +Security hardening remains separate design work; the [security and authority non-goals](#security-and-authority-are-explicit-non-goals) define this RFC's trust boundary without turning registration scope into an authorization model. diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts index 942ec4efb4..88b89f5d3b 100644 --- a/packages/cordis/tool-cordis/src/api-catalog.ts +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -189,7 +189,7 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ }, { key: 'systemPrompt', - summary: 'Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, named prompt variables, and authoritative contribution protections; the agent loop calls `assemble(context)` once per step.', + summary: 'Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, named prompt variables, and owner-final contribution protections; the agent loop calls `assemble(context)` once per step.', methods: [ 'section(section: PromptSection): () => Promise | void', 'tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void', diff --git a/packages/core/scope/README.md b/packages/core/scope/README.md index 1813ff5071..06d06ba59e 100644 --- a/packages/core/scope/README.md +++ b/packages/core/scope/README.md @@ -16,6 +16,6 @@ Scoped-context registration primitive. `createScope(ctx, key)` mints a Cordis co ## Design contract -Ownership and visibility derive from ONE fact — which context a registration went through. An explicit `{ scope }` registration parameter could express "visible to X, disposed with Y", which is almost always a bug; the scoped context makes it unrepresentable. Rationale and alternatives: [the agent-scope RFC](../../../docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md). +Ownership and visibility derive from ONE fact — which context a registration went through. An explicit `{ scope }` registration parameter could express "visible to X, disposed with Y", which is almost always a bug; the scoped context makes it unrepresentable. This is trusted registration and listener routing, not sandboxing or an authority hierarchy: a same-process plugin is not confined, and a child scope need not be a subset of its parent's view. Rationale, alternatives, and the security non-goal: [the agent-scope RFC](../../../docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md#security-and-authority-are-explicit-non-goals). -Handing out a scoped context hands out the minting plugin's service-resolution capability (resolution walks the minting fiber's dependency chain, not the holder's) — mint scopes from a plugin whose `inject` surface is what scope holders should reach. +Handing out a scoped context hands out the minting plugin's service-resolution surface (resolution walks the minting fiber's dependency chain, not the holder's) — mint it from the plugin whose dependencies the scoped registrations need to resolve. diff --git a/packages/core/scope/src/index.ts b/packages/core/scope/src/index.ts index 158d6d37d8..526dffbb51 100644 --- a/packages/core/scope/src/index.ts +++ b/packages/core/scope/src/index.ts @@ -27,8 +27,8 @@ import { Context as CordisContext } from 'cordis' // Capture the invocation primordials once. A carrier holder can reach the // composed Context.filter function, so neither that function's mutable -// property surface nor a base filter's own `.call` may choose how isolation -// predicates are invoked. +// property surface nor a base filter's own `.call` may choose how listener- +// selection predicates are invoked. const reflectApply = Reflect.apply // eslint-disable-next-line @typescript-eslint/unbound-method const functionCall = Function.prototype.call @@ -131,7 +131,7 @@ function scope(): void {} * Service resolution through the scoped context flows through the minting * plugin's dependency chain (the fiber walk), regardless of what the eventual * holder's own fiber injected — handing out the scoped context hands out that - * capability; see `Agent.ctx` in `@deepseek-ai/dsh-agent` for the harness's + * dependency surface; see `Agent.ctx` in `@deepseek-ai/dsh-agent` for the harness's * contract. * @param ctx - the context to mount the scope under; its fiber must be active * (a disposing owner throws Cordis's INACTIVE_EFFECT), and its plugin's @@ -201,7 +201,7 @@ function isConstructable(value: (...args: unknown[]) => unknown): boolean { * compatibility default: plain plugin listeners see every subject), or * - its tag IS `key` (a scoped listener seeing exactly its own subject), * - * AND `base`'s own filter (a Cordis `Service`'s isolation check) also admits + * AND `base`'s own filter (a Cordis `Service`'s listener-filter check) also admits * it. Both the captured base filter and the composed filter are invoked * through captured JavaScript primordials, so mutating either function's * public `.call` property cannot bypass either predicate. Dispatching with @@ -263,7 +263,7 @@ export function scopeTarget(base: T, key: ScopeKey | undefined // construction, a base-target proxy would therefore silently replace the // composed scope predicate with the caller's filter. The surrogate owns the // two immutable overlay slots, so later descriptor changes on `base` cannot - // affect isolation. It shares the base prototype and delegates ordinary + // affect listener selection. It shares the base prototype and delegates ordinary // reads/writes/keys to preserve the supported transparent shape. Callable // targets use native bound built-ins so V8 contributes no user-code surface; // the chosen built-in matches whether `base` has [[Construct]], and the traps diff --git a/packages/core/system-prompt/README.md b/packages/core/system-prompt/README.md index dd395b3f88..06d735e271 100644 --- a/packages/core/system-prompt/README.md +++ b/packages/core/system-prompt/README.md @@ -1,6 +1,6 @@ # dsh-system-prompt -System prompt assembly registry. Plugins contribute ordered text sections, tool-schema providers, named prompt variables, and authoritative named protections; the agent loop calls `assemble(context)` once per step, and `renderPrompt(assembly)` is the full system prompt the model sees. The plugin registers the harness-owned openers itself — the static `harness:identity` section and the deployment's `deployment:persona` section — so they exist for every agent regardless of which loop plugin drives it. +System prompt assembly registry. Plugins contribute ordered text sections, tool-schema providers, named prompt variables, and owner-final named protections; the agent loop calls `assemble(context)` once per step, and `renderPrompt(assembly)` is the full system prompt the model sees. The plugin registers the harness-owned openers itself — the static `harness:identity` section and the deployment's `deployment:persona` section — so they exist for every agent regardless of which loop plugin drives it. ## Config @@ -16,7 +16,7 @@ System prompt assembly registry. Plugins contribute ordered text sections, tool- - `ctx.systemPrompt.section(section: PromptSection): () => Promise | void` Contribute a section. The registry reads `name`, `order`, and the text value/callback once, validates their fixed string/finite-number/string-or-function types, and stores only that accepted record; later caller-object mutation cannot rename or reshape it. The layer is the CALLING context's scope: `agent.ctx` contributes to that agent alone, SHADOWING a same-named global section there (the per-agent persona mechanism — a scoped `deployment:persona`). Duplicate names within one layer throw, and a globally protected section name cannot be shadowed. Disposed with the calling fiber. - `ctx.systemPrompt.tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void` Contribute tool schemas, evaluated at each assembly with that assembly's context; a non-function provider rejects before effect storage. `ToolProviderResult` = `{ schemas, knownNames? }`: `schemas` is the post-restriction visible set for `context.scope`; `knownNames` (defaulting to the same captured schemas' names) is the pre-restriction universe `toolOrder` validates against. Assembly reads the result, each schema field, and the optional known-name list once before detaching them, rejects non-string schema names/descriptions or known names, and uses those same accepted strings for validation and the model-visible collection. A provider must not return a schema named `TOOL_ORDER_REST`. Scoped providers are consulted only for their scope's assemblies. Disposed with the calling fiber. - `ctx.systemPrompt.variable(name: string, provider: (context) => string | undefined): () => Promise | void` Contribute a prompt variable, referenced from section text as `{{name}}`. The fixed string name and function provider types reject before effect storage. Scoped variables (via `agent.ctx`) shadow a same-named global for that agent. Duplicate-in-layer or unreferenceable names throw; `undefined` means "no value for this assembly". Disposed with the calling fiber. -- `ctx.systemPrompt.protect(protection: PromptProtection): () => Promise | void` Make named section/tool contributions authoritative after the assembly waterfall. Protection restores canonical registry/provider presence and definition; restored entries keep canonical order with one another and anchor before their first surviving later unprotected canonical neighbor (or at the end), without undoing listener reordering of unprotected entries. Canonical absence is authoritative too, so a mode-hidden tool cannot be fabricated by a listener. Calling through `agent.ctx` protects only that agent's assemblies. A global section protection additionally reserves its name against scoped shadows; registering either side of that conflict fails loudly instead of treating the shadow as canonical. Each optional field and array slot is read once, non-array fields or non-string names reject before effect storage, and the accepted arrays are deduplicated and frozen. Finalization materializes each waterfall-produced entry name once, so a stateful getter cannot evade canonical replacement. Empty protections throw, and disposal removes the protection. +- `ctx.systemPrompt.protect(protection: PromptProtection): () => Promise | void` Make named section/tool contributions owner-final after the assembly waterfall. Protection restores canonical registry/provider presence and definition; restored entries keep canonical order with one another and anchor before their first surviving later unprotected canonical neighbor (or at the end), without undoing listener reordering of unprotected entries. Canonical absence is owner-final too, so a mode-hidden tool cannot be fabricated by a listener. Calling through `agent.ctx` protects only that agent's assemblies. A global section protection additionally reserves its name against scoped shadows; registering either side of that conflict fails loudly instead of treating the shadow as canonical. Each optional field and array slot is read once, non-array fields or non-string names reject before effect storage, and the accepted arrays are deduplicated and frozen. Finalization materializes each waterfall-produced entry name once, so a stateful getter cannot evade canonical replacement. Empty protections throw, and disposal removes the protection. - `ctx.systemPrompt.assemble(context?: AssembleContext): Promise` Assemble the prompt for one caller: the global layer merged with `context.scope`'s layer (scoped shadows global). Provider output becomes one coherent detached snapshot before `toolOrder` validation. Runs through the scope-filtered `system-prompt/assemble` waterfall, then restores protected contributions from the pre-waterfall canonical assembly. Rejects when a configured `toolOrder` names a tool outside the providers' `knownNames` universe (a restricted-away KNOWN tool is a normal absence), or when a provider returns the reserved rest-entry name. ### Live events diff --git a/packages/core/system-prompt/src/index.ts b/packages/core/system-prompt/src/index.ts index b810d07559..40eddc7ba1 100644 --- a/packages/core/system-prompt/src/index.ts +++ b/packages/core/system-prompt/src/index.ts @@ -1,6 +1,6 @@ /** * System prompt assembly registry. Plugins contribute ordered text sections, - * tool schema providers, named prompt variables, and authoritative named + * tool schema providers, named prompt variables, and owner-final named * protections; `assemble(context)` collates them through a waterfall that * runs once per step, restores protected contributions, and `renderPrompt` * interpolates `{{variable}}` references into the final text. @@ -138,9 +138,9 @@ export interface ToolProviderResult { * off the wire in Code Mode). */ export interface PromptProtection { - /** Section names whose canonical registry output is authoritative. */ + /** Section names whose canonical presence and definition are restored after the waterfall. */ sections?: readonly string[] - /** Tool names whose canonical provider output is authoritative. */ + /** Tool names whose canonical presence and definition are restored after the waterfall. */ tools?: readonly string[] } @@ -422,7 +422,7 @@ function interpolate(section: AssembledSection, variables: Record Promise | void { @@ -736,7 +736,7 @@ export class SystemPrompt extends Service { return dispose } - /** Resolve the authoritative names registered for one assembly scope. */ + /** Resolve the owner-final names registered for one assembly scope. */ private protectedNames(scope: ScopeKey | undefined): { sections: Set; tools: Set } { const records = [ ...this.protections, diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index 74f1ff14c4..39874a41bd 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -16,7 +16,7 @@ tools: ### Public API - `ctx.tools.register(definition: ToolDefinition): () => Promise | void` Register a tool as a frozen snapshot. Every top-level caller field is read once into one coherent acceptance record; `name`/`description` must be strings and `timeoutMs`, when present, must be positive and finite before the snapshot can own them. Parameters are validated and detached by one recursive lossless-JSON traversal, so a stateful getter cannot show one value to a check and another to a prototype-erasing clone. Execute/presentation callbacks are bound once to the original definition as their method receiver, so later caller mutation cannot change the executable definition. The layer is the CALLING context's scope (`dsh-scope`): a plain plugin context registers globally; an agent's `agent.ctx` registers for that agent alone, SHADOWING a same-named global tool there (per-agent tool variants). Duplicate names within one layer throw; non-native modes also reject the reserved `run_code` transport name. Disposed with the calling fiber (= the agent, for scoped registrations). -- `ctx.tools.restrict(filter: ToolRestriction): () => Promise | void` Scoped-only (throws on a plain context): mask the GLOBAL end-capability surface for the calling agent — `allow` keeps only the listed tools, `deny` removes them; multiple restrictions intersect; scoped registrations bypass restriction as explicit grants. The registry reads `allow`/`deny` once, so the values checked for an empty filter and unknown names are exactly the values enforced. The reserved `run_code` transport remains available automatically and cannot be named explicitly. Snapshot-at-registration, loud unknown-name validation, `restrict({})` rejects (the materialized-empty-config trap). +- `ctx.tools.restrict(filter: ToolRestriction): () => Promise | void` Scoped-only (throws on a plain context): mask the GLOBAL end-capability surface for the calling agent — `allow` keeps only the listed tools, `deny` removes them; multiple restrictions intersect; scope-local registrations are merged after the global filter. The registry reads `allow`/`deny` once, so the values checked for an empty filter and unknown names are exactly the values enforced. A deny-list admits a later global tool unless it names that tool; an allow-list excludes later names; neither filters a later scope-local registration. The reserved `run_code` transport remains available automatically and cannot be named explicitly. Filter-value snapshot at registration, loud unknown-name validation, `restrict({})` rejects (the materialized-empty-config trap). This is live registration composition, not a parent-derived authority ceiling; see the [agent-scope security non-goal](../../../docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md#security-and-authority-are-explicit-non-goals). - `ctx.tools.get(name: string, scope?: ScopeKey): ToolDefinition | undefined` Resolution as one scope sees it (shadowing applied; a restricted-away global reads as absent) — presenters pass the calling agent so the card matches what executed. Returned definitions are the registry's frozen snapshots. - `ctx.tools.visible(scope?: ScopeKey): ToolDefinition[]` The canonical executable view — restricted global layer ∪ the scope's own layer, plus the reserved transport in non-native modes — feeding prompt assembly, `get`, and `execute`, so presentation and dispatch resolve the same frozen definitions. - `ctx.tools.knownNames(scope?: ScopeKey): string[]` The PRE-restriction end-capability name universe `restrict` validates against: a typo fails loud while a restricted-away tool stays a normal absence. Presentation providers add reserved transport names separately when validating `toolOrder`. diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index d757f6cffa..4dd59efb8c 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -115,8 +115,8 @@ declare module 'cordis' { * set or replace the one mutable field, `exec.signal` (e.g. with a per-call * deadline), BEFORE `next()`, restore/delete it afterward, and inspect the result AFTER. Call identity * (`token`, `callId`, `name`, `arguments`, `agent`, and `parent`) is immutable throughout the - * pipeline so a wrapper cannot change which capability or scope was - * authorized. (Cordis `next()` ignores passed arguments and re-invokes + * pipeline so a wrapper cannot change which tool and scope the pipeline + * accepted. (Cordis `next()` ignores passed arguments and re-invokes * downstream with the shared payload, so a wrapper changes `exec.signal` in * place rather than passing a new object to `next()`.) * Multiple listeners compose by registration order — an outer one wraps the @@ -429,8 +429,11 @@ export interface Config { * {@link ToolRegistry.restrict}. `allow` keeps only the listed global tools; * `deny` removes the listed ones; both present = allow first, then deny. * Restrictions never touch scoped registrations — a tool registered through - * the same scope is an explicit grant that bypasses them (which is what keeps - * e.g. a structured-output capture tool alive under an allow-list). The + * the same scope is merged after the global filter (which is what keeps e.g. a + * structured-output capture tool alive under an allow-list). The filter values + * are snapshotted at registration, but resolution uses the live global registry: + * a later global name passes a deny-only filter unless explicitly denied and + * fails an allow-list unless explicitly allowed. The * reserved `run_code` presentation transport is likewise outside capability * filtering, and naming it explicitly is rejected. Multiple restrictions on * one scope compose by intersection: every one must admit. @@ -705,11 +708,14 @@ export class ToolRegistry extends Service { * this). A non-native mode's reserved `run_code` presentation transport is * not a filterable capability; naming it explicitly throws, while omitting * it from an allow-list cannot remove it. `allow` and `deny` are each read - * once, then the filter is SNAPSHOT at registration: the values checked are - * the values enforced, and later caller mutation of the arrays changes nothing. - * Multiple restrictions compose by intersection. Scoped registrations - * bypass restrictions (explicit grants win). Disposed with the calling - * fiber (revocable independently); emits `tools/change`. + * once, then the filter VALUES are snapshotted at registration: the values + * checked are the values enforced, and later caller mutation of the arrays + * changes nothing. Resolution still uses the live global registry, so a later + * global name passes a deny-only filter unless named and fails an allow-list + * unless named. Multiple restrictions compose by intersection. Scoped + * registrations are merged after restrictions and therefore remain visible. + * Disposed with the calling fiber (revocable independently); emits + * `tools/change`. * @param filter - global-surface mask: `allow` (keep only) and/or `deny` (remove). * @returns the disposer that lifts this restriction. The exact * Cordis effect disposer (single-shot): composite (generator) effects may @@ -863,7 +869,7 @@ export class ToolRegistry extends Service { if (this.admits(scope, name)) result.set(name, definition) } // Scoped layer second: same-name entries REPLACE (shadow) the global ones, - // and grants bypass restrictions by construction (never filtered above). + // and scope-local registrations are never part of the global filter above. for (const [name, definition] of layer ?? []) result.set(name, definition) // Presentation infrastructure is resolved last and outside capability // filtering. Registration rejects this reserved name, so this set is an diff --git a/packages/core/tools/tests/scoped.spec.ts b/packages/core/tools/tests/scoped.spec.ts index ea4ef57ddd..40671ae6fc 100644 --- a/packages/core/tools/tests/scoped.spec.ts +++ b/packages/core/tools/tests/scoped.spec.ts @@ -101,7 +101,7 @@ describe('scoped tool registration', () => { }) describe('restrict()', () => { - it('masks global tools for the scope; grants bypass; assembly and execute agree', async () => { + it('masks global tools, merges scope-local tools afterward, and keeps assembly with execution', async () => { const ctx = await mount() const { scope, key } = await mintAgentScope(ctx, 'a') ctx.tools.register(tool('read')) @@ -109,7 +109,7 @@ describe('restrict()', () => { scope.ctx.tools.register(tool('capture')) scope.ctx.tools.restrict({ allow: ['read'] }) - // The scoped grant survives the allow-list; the unlisted global is gone. + // The scope-local registration survives the allow-list; the unlisted global is gone. expect(ctx.tools.schemas(key).map(t => t.name).sort()).toEqual(['capture', 'read']) expect(await run(ctx, 'bash', key)).toBe('Error: unknown tool "bash"') expect(await run(ctx, 'read', key)).toBe('ran:read') @@ -118,6 +118,29 @@ describe('restrict()', () => { expect(ctx.tools.schemas().map(t => t.name).sort()).toEqual(['bash', 'read']) }) + it('applies snapshotted filters to the live global registry before merging later scope-local tools', async () => { + const ctx = await mount() + const denied = await mintAgentScope(ctx, 'denied') + const allowed = await mintAgentScope(ctx, 'allowed') + ctx.tools.register(tool('read')) + ctx.tools.register(tool('bash')) + denied.scope.ctx.tools.restrict({ deny: ['bash'] }) + allowed.scope.ctx.tools.restrict({ allow: ['read'] }) + + ctx.tools.register(tool('web')) + denied.scope.ctx.tools.register(tool('denied-local')) + allowed.scope.ctx.tools.register(tool('allowed-local')) + + expect(ctx.tools.schemas(denied.key).map(t => t.name).sort()) + .toEqual(['denied-local', 'read', 'web']) + expect(ctx.tools.schemas(allowed.key).map(t => t.name).sort()) + .toEqual(['allowed-local', 'read']) + expect(await run(ctx, 'web', denied.key)).toBe('ran:web') + expect(await run(ctx, 'web', allowed.key)).toBe('Error: unknown tool "web"') + expect(await run(ctx, 'denied-local', denied.key)).toBe('ran:denied-local') + expect(await run(ctx, 'allowed-local', allowed.key)).toBe('ran:allowed-local') + }) + it('composes multiple restrictions by intersection and lifts each independently', async () => { const ctx = await mount() const { scope, key } = await mintAgentScope(ctx, 'a') diff --git a/packages/subagent/subagent-fork/README.md b/packages/subagent/subagent-fork/README.md index 1434601c8e..2aef651839 100644 --- a/packages/subagent/subagent-fork/README.md +++ b/packages/subagent/subagent-fork/README.md @@ -1,6 +1,6 @@ # @deepseek-ai/dsh-subagent-fork -The in-process **fork** subagent backend: a [`SubagentProvider`](../subagent/README.md) that runs each child as a child [`Agent`](../../core/agent) **seeded with a prefix of the parent's session log** — so the child inherits the parent's conversation context instead of starting fresh. Shares the run driver (`startInProcessRun`) with [`dsh-subagent-spawn`](../subagent-spawn/README.md); the only difference is the seed. The shared `run.started` boundary resolves only after the seeded child is published, so `subagent/start` observers see a live registry entry. +The in-process **fork** subagent backend: a [`SubagentProvider`](../subagent/README.md) that runs each child as a child [`Agent`](../../core/agent) **seeded with a prefix of the parent's session log** instead of starting with an empty conversation. The seed affects conversation history only. Tool registrations and restrictions follow the child's fresh flat scope; no parent/child authority relation is defined. Fork shares the run driver (`startInProcessRun`) with [`dsh-subagent-spawn`](../subagent-spawn/README.md); the only difference is the seed. The shared `run.started` boundary resolves only after the seeded child is published, so `subagent/start` observers see a live registry entry. ## The seed boundary (the crux) diff --git a/packages/subagent/subagent-inprocess/README.md b/packages/subagent/subagent-inprocess/README.md index b96cc811ad..0980d85aa9 100644 --- a/packages/subagent/subagent-inprocess/README.md +++ b/packages/subagent/subagent-inprocess/README.md @@ -8,13 +8,15 @@ The shared **in-process subagent run driver**. A library with no provider or imp Runs a child as a child [`Agent`](../../core/agent) on the same cordis context (`ctx.agents`): -1. reads every public request and seed field once before asynchronous owner setup: the parent and signal remain identity capabilities, while tool filter, seed, agent options, output schema, and prompt are each materialized by the shared one-pass lossless-JSON snapshot. It rejects a malformed `request.maxDepth`, validates the parent's `subagentDepth`, computes child depth = `depthOf(parent) + 1`, rejects cap overflow with `SubagentDepthError`, reports an invalid schema as `OutputSchemaError`, and derives both the child prefix and `seedLength` from the same detached seed; +1. reads every public request and seed field once before asynchronous owner setup: the parent and signal remain identity capabilities, while tool filter, seed, agent options, output schema, and prompt are each materialized by the shared one-pass lossless-JSON snapshot. It rejects malformed `request.maxDepth` and `persona` values, validates the parent's `subagentDepth`, computes child depth = `depthOf(parent) + 1`, rejects a child depth outside the safe-integer domain with `RangeError`, rejects a defined `maxDepth` cap breach with `SubagentDepthError`, reports an invalid schema as `OutputSchemaError`, and derives both the child prefix and `seedLength` from the same detached seed; 2. first installs provider ownership, then attaches the request abort listener and creates one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves no child or orphaned listener. Async child creation goes through that fiber's `ctx.agents` service with fresh IDs, lineage/seed, inherited model, and an unpublished setup transaction for persona, tool restriction, and structured output. Parent teardown, provider teardown, manual `run.dispose()`, and cancellation before readiness all dispose this exact node, preventing publication after it becomes inactive and sharing the same quiescence boundary. `startInProcessRun` still returns its `SubagentRun` immediately: `run.started` resolves only after `ctx.agents.create()` has published the child and rejects when pre-readiness cancellation rolls the transaction back; 3. drives the one-shot: `child.send(prompt)` then `await child.whenIdle()` (ordering matters — `send` enqueues synchronously, so `whenIdle` observes the queued work and resolves on the child's `running → idle` transition, never before the turn starts); there is deliberately NO re-prompt for a structured child that finished cleanly without calling `structured_output` — the shortfall maps to an `error` result for the parent; 4. reads the result, scoped to the child's OWN events (everything at or after `seedLength`, so a seeded child that produced no message of its own never returns the seeded parent's last message): the last `assistant/message` content (deep-cloned — the log is frozen) and the last `turn/end.reason` mapped to a `SubagentStopReason`. A structured run surfaces the captured value as `result.structured`; a structured child that finished cleanly WITHOUT ever capturing settles `error` (a clean finish without the demanded result is a failure, not a success with a missing field). `SubagentService` waits for `run.started` before emitting `subagent/start`, so a synchronous start observer can resolve the published child with `ctx.agents.get(run.id)`; the result driver awaits the same boundary before sending the prompt. An attempt that never publishes rejects readiness and emits no false start/end pair; its result reports a deliberate cancel/dispose as `aborted` and propagates an infrastructure fault. `dispose()` awaits creation or rollback and then delegates to `AgentHandle.dispose()` (stop and drain → remove agent → detach session → unwind scope). Before readiness, `cancel()` deactivates the creation owner: before creation notification begins, no agent/session lifecycle edge escapes; if cancellation is triggered synchronously by a creation observer, every begun edge is paired by rollback and the driver never unlocks or starts. After readiness, cancellation reaches the live child immediately. Either path records the cancellation, so a cancel landing before any `turn/end` settles `aborted`, honoring the cancel contract rather than the generic no-turn `error`. +The child receives a fresh flat registration scope. Its `toolFilter` masks the live global tool layer and scope-local registrations are merged afterward; parent ownership does not import the parent's tool restrictions or establish an authority subset. The [agent-scope RFC](../../../docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md#security-and-authority-are-explicit-non-goals) owns that explicit non-goal. + ### `InProcessRunOptions` `{ seed?: SessionEvent[] }` — the optional child-session seed: absent for spawn, or the parent's balanced completed-turn prefix for fork. @@ -32,8 +34,8 @@ Runs a child as a child [`Agent`](../../core/agent) on the same cordis context ( ### `depthOf(agent): number` -Delegation depth rides on a merge-extensible `AgentOptions.subagentDepth` field (0 for a top-level agent, parent + 1 for a child), so a nested spawn reads its parent's depth from `parent.options.subagentDepth`. `depthOf` reads it (absent ⇒ 0). +Delegation depth rides on a merge-extensible `AgentOptions.subagentDepth` field (0 for a top-level agent, parent + 1 for a child), so a nested spawn reads its parent's depth from `parent.options.subagentDepth`. `depthOf` treats only `undefined` as absent (top-level depth 0) and rejects every malformed present value instead of letting it disable the cap comparison. ### `SubagentDepthError` -Thrown by `startInProcessRun` when a spawn would exceed the request's `maxDepth` cap; carries `attemptedDepth` and `maxDepth`. +Thrown by `startInProcessRun` when a spawn would exceed the request's defined `maxDepth` cap; carries `attemptedDepth` and `maxDepth`. A valid parent at `Number.MAX_SAFE_INTEGER` instead produces `RangeError`, because its child depth cannot be represented within the stored safe-integer domain even when `maxDepth` is omitted. diff --git a/packages/subagent/subagent-inprocess/src/index.ts b/packages/subagent/subagent-inprocess/src/index.ts index e0ad53c486..3ccb08fda9 100644 --- a/packages/subagent/subagent-inprocess/src/index.ts +++ b/packages/subagent/subagent-inprocess/src/index.ts @@ -58,7 +58,8 @@ declare module '@deepseek-ai/dsh-agent' { * @returns 0 for a top-level agent, its parent's depth + 1 for a subagent. */ export function depthOf(agent: Agent): number { - const depth = agent.options.subagentDepth ?? 0 + const depth = agent.options.subagentDepth + if (depth === undefined) return 0 if (!Number.isSafeInteger(depth) || depth < 0 || Object.is(depth, -0)) { throw new TypeError('agent subagentDepth must be a non-negative safe integer') } @@ -123,7 +124,8 @@ async function quiesceFiber(fiber: Fiber): Promise { * resolves `aborted`. * * Throws {@link SubagentDepthError} before creating anything when the child's - * depth (parent depth + 1) would exceed `request.maxDepth`. + * depth (parent depth + 1) would exceed `request.maxDepth`, and throws a + * `RangeError` when a valid parent depth has no safe-integer successor. * @param ctx - the provider context that owns the live run as a second * structured-concurrency boundary alongside the parent agent. * @param request - the start request (prompt, parent, signal, per-child options). @@ -147,6 +149,9 @@ export function startInProcessRun( const inputAgentOptions = request.agentOptions const inputSeed = options.seed assertSubagentMaxDepth(inputMaxDepth) + if (persona !== undefined && typeof persona !== 'string') { + throw new TypeError('subagent persona must be a string') + } const toolFilter = inputToolFilter === undefined ? undefined : snapshotJsonValue(inputToolFilter) if (inputToolFilter !== undefined && toolFilter === undefined) { throw new TypeError('subagent tool filter must be losslessly JSON-serializable') @@ -156,6 +161,9 @@ export function startInProcessRun( throw new TypeError('subagent seed must be losslessly JSON-serializable') } const childDepth = depthOf(parent) + 1 + if (!Number.isSafeInteger(childDepth)) { + throw new RangeError('subagent child depth exceeds the safe-integer range') + } if (inputMaxDepth !== undefined && childDepth > inputMaxDepth) { throw new SubagentDepthError(childDepth, inputMaxDepth) } diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index 1e63617154..54ac968f4b 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -36,7 +36,7 @@ const SCHEMA: StructuredOutputSchema = { } /** - * Real loop + scripted mock model + an INLINE spawn-shaped provider over the + * Real loop + scripted mock model + an INLINE fresh-conversation provider over the * shared driver. The concrete backend plugins are deliberately NOT loaded — * they would devDep-cycle this package (spawn/fork already depend on the * driver), and the runtime under test is the driver's; plugin-level structured diff --git a/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts b/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts index db37c974b3..8f710237ab 100644 --- a/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts @@ -48,6 +48,7 @@ describe('depthOf', () => { }) it.each([ + { label: 'null', value: null as unknown as number }, { label: 'a string', value: '1' as unknown as number }, { label: 'NaN', value: Number.NaN }, { label: 'positive infinity', value: Number.POSITIVE_INFINITY }, @@ -64,6 +65,7 @@ describe('depthOf', () => { describe('startInProcessRun', () => { it.each([ + { label: 'null', value: null as unknown as number }, { label: 'a string', value: '1' as unknown as number }, { label: 'NaN', value: Number.NaN }, { label: 'positive infinity', value: Number.POSITIVE_INFINITY }, @@ -81,6 +83,27 @@ describe('startInProcessRun', () => { }, {})).toThrow('subagent maxDepth must be a non-negative safe integer') }) + it('rejects a non-string persona before acquiring run ownership', async () => { + const { ctx, parent } = await setup([]) + expect(() => startInProcessRun(ctx, { + prompt: [{ type: 'text', text: 'must never start' }], + parent, + persona: 42 as unknown as string, + }, {})).toThrow('subagent persona must be a string') + }) + + it('rejects a child depth with no safe-integer representation before acquiring run ownership', async () => { + const { ctx } = await setup([]) + const parent = { + options: { subagentDepth: Number.MAX_SAFE_INTEGER }, + } as unknown as Agent + + expect(() => startInProcessRun(ctx, { + prompt: [{ type: 'text', text: 'must never start' }], + parent, + }, {})).toThrow(RangeError) + }) + it('rejects a non-JSON prompt before acquiring any run ownership', async () => { const { ctx, parent } = await setup([]) expect(() => startInProcessRun(ctx, { diff --git a/packages/subagent/subagent/README.md b/packages/subagent/subagent/README.md index e98d8cd8de..6470b64ee5 100644 --- a/packages/subagent/subagent/README.md +++ b/packages/subagent/subagent/README.md @@ -29,7 +29,7 @@ Unlike the bash seam (one executor per context, second load throws), **multiple - **Start-time features** (`outputSchema`, `depthLimit`, `toolFilter/persona`) are a static `provider.capabilities` descriptor, checked by the service BEFORE a run exists. A request that needs one the provider lacks is **rejected loud** (`UNSUPPORTED_CAPABILITY`), never accepted-then-ignored. - **Runtime features** (steering, resume) are **optional methods** on `SubagentRun` (`sendMessage?`, `resume?`). The method's presence IS the capability; TS narrowing is the discovery mechanism — a consumer cannot call an absent method without narrowing first, so there is no silent degradation path. -Beside `capabilities` sits one DESCRIPTIVE fact: `provider.inheritsParentContext` — whether a child sees the parent conversation (`fork`: true — seeded with the completed-turn prefix; `spawn`/`acp`: false). The service validates that the descriptor is a boolean but does not interpret or enforce its meaning; the model-facing consumer (`dsh-tool-subagent`) derives truthful tool wording from it. +Beside `capabilities` sits one DESCRIPTIVE fact: `provider.inheritsParentContext` — whether a child sees the parent conversation (`fork`: true — seeded with the completed-turn prefix; `spawn`/`acp`: false). “Context” here means conversation history only; it says nothing about tool registrations, injected services, or authority inheritance. The service validates that the descriptor is a boolean but does not interpret or enforce its meaning; the model-facing consumer (`dsh-tool-subagent`) derives truthful tool wording from it. ## Run lifecycle diff --git a/packages/subagent/subagent/src/types.ts b/packages/subagent/subagent/src/types.ts index 97efd4661f..42f55b300d 100644 --- a/packages/subagent/subagent/src/types.ts +++ b/packages/subagent/subagent/src/types.ts @@ -69,9 +69,10 @@ export interface SubagentStartRequest { */ outputSchema?: StructuredOutputSchema /** - * Optional recursion cap (max delegation depth below this child). Must be a - * non-negative safe integer. Requires {@link SubagentCapabilities.depthLimit}; - * rejected at start otherwise. + * Optional absolute delegation-depth cap for the child being started: its + * computed depth must be less than or equal to this non-negative safe + * integer. Requires {@link SubagentCapabilities.depthLimit}; rejected at + * start otherwise. */ maxDepth?: number /** @@ -195,13 +196,15 @@ export interface SubagentProvider { /** The start-time features this provider supports (see {@link SubagentCapabilities}). */ readonly capabilities: SubagentCapabilities /** - * The provider's context contract: `true` when a child SEES the parent + * The provider's conversation-history descriptor: `true` when a child SEES the parent * conversation (fork — the child is seeded with the parent's completed-turn * prefix), `false` when it starts fresh (spawn, ACP). A DESCRIPTIVE fact, * not a start-time capability: the service validates nothing against it — * the model-facing consumer (`dsh-tool-subagent`) derives truthful tool * wording from it, so a tool bound to a fork provider stops telling the - * model the child "does not see this conversation". + * model the child "does not see this conversation". This descriptor concerns + * conversation history only; it says nothing about tool registrations, + * injected services, or authority inheritance. */ readonly inheritsParentContext: boolean /** diff --git a/packages/subagent/subagent/tests/service.spec.ts b/packages/subagent/subagent/tests/service.spec.ts index faf4bb00b3..182ee7ac8b 100644 --- a/packages/subagent/subagent/tests/service.spec.ts +++ b/packages/subagent/subagent/tests/service.spec.ts @@ -226,7 +226,7 @@ describe('SubagentService', () => { patch: { capabilities: { ...NO_CAPS, persona: 'yes' } }, message: 'capability "persona" must be a boolean', }, - { label: 'a non-boolean context descriptor', patch: { inheritsParentContext: 'yes' }, message: 'inheritsParentContext must be a boolean' }, + { label: 'a non-boolean conversation-history descriptor', patch: { inheritsParentContext: 'yes' }, message: 'inheritsParentContext must be a boolean' }, { label: 'a non-callable start field', patch: { start: 42 }, message: 'start must be a function' }, ])('rejects a provider registration with $label before entering the registry', async ({ patch, message }) => { const ctx = new Context() @@ -431,6 +431,7 @@ describe('SubagentService', () => { }) it.each([ + { label: 'null', value: null as unknown as number }, { label: 'a string', value: '1' as unknown as number }, { label: 'NaN', value: Number.NaN }, { label: 'positive infinity', value: Number.POSITIVE_INFINITY }, diff --git a/packages/subagent/tool-subagent/README.md b/packages/subagent/tool-subagent/README.md index 9aed426ac0..2163d4c884 100644 --- a/packages/subagent/tool-subagent/README.md +++ b/packages/subagent/tool-subagent/README.md @@ -6,9 +6,9 @@ The model-facing `subagent` tool: delegate a self-contained task to a child agen This plugin binds to **exactly one** provider (`Config.provider`). The model sees only `{ description, prompt }` — there is no provider/type parameter in the schema. To expose more than one transport, load the plugin more than once, each bound to a different provider **and a distinct `toolName`** (the tool registry rejects a duplicate name, so a second load that kept the default `subagent` name would throw). Keeping selection in config (not the schema) is the deliberate split: the *service* holds a multi-provider registry; the *tool* picks one. -## The description states the provider's context contract +## The description states the provider's conversation-history descriptor -The tool description and the `prompt` parameter description are DERIVED from the bound provider's `inheritsParentContext` (`providerWording`): a fresh-context provider (spawn, ACP) gets the standalone-prompt wording ("it does not see this conversation"), an inheriting provider (fork) tells the model the child already sees the conversation's completed turns and its prompt should state only what is new. Because the description is fixed at tool registration, the tool **mirrors the provider's lifecycle** (`subagent/provider-added`/`-removed`): it registers when the bound provider is (or becomes) available and unregisters when the provider goes away — no load-order requirement (the cordis Loader starts sibling entries concurrently, so "listed first" never guaranteed "registered first"), and an HMR reload of the backend re-derives the wording from the fresh provider. While the provider is absent the tool simply does not exist (a `ctx.logger` note records the wait; a typo'd provider name shows up as a tool that never materializes). +The tool description and the `prompt` parameter description are DERIVED from the bound provider's `inheritsParentContext` (`providerWording`): a fresh-conversation provider (spawn, ACP) gets the standalone-prompt wording ("it does not see this conversation"), while fork tells the model the child is seeded with the conversation's completed turns and its prompt should state only what is new. The descriptor concerns conversation history only, not tool or authority inheritance. Because the description is fixed at tool registration, the tool **mirrors the provider's lifecycle** (`subagent/provider-added`/`-removed`): it registers when the bound provider is (or becomes) available and unregisters when the provider goes away — no load-order requirement (the cordis Loader starts sibling plugins concurrently, so "listed first" never guaranteed "registered first"), and an HMR reload of the backend re-derives the wording from the fresh provider. While the provider is absent the tool simply does not exist (a `ctx.logger` note records the wait; a typo'd provider name shows up as a tool that never materializes). | Config key | Meaning | |---|---| @@ -17,7 +17,9 @@ The tool description and the `prompt` parameter description are DERIVED from the | `agentOptions` | Default per-child `{ model? }` applied to every spawned child. | | `persona` | Per-child persona that shadows the deployment persona; requires the provider's `persona` capability. | | `toolFilter` | Per-child `{ allow?, deny? }` restriction over global tools; requires the provider's `toolFilter` capability. | -| `maxDepth` | Maximum delegation depth; a non-negative safe integer validated when this plugin loads. Requires the provider's `depthLimit` capability. | +| `maxDepth` | Maximum absolute delegation-tree depth for every child this tool starts; a non-negative safe integer validated when this plugin loads. Requires the provider's `depthLimit` capability. | + +`toolFilter` uses [`ToolRegistry.restrict()`](../../core/tools/README.md)'s live global-view semantics and is not a parent-derived authority ceiling; see the [agent-scope security non-goal](../../../docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md#security-and-authority-are-explicit-non-goals). ## Lifecycle (synchronous collect) diff --git a/packages/subagent/tool-subagent/src/index.ts b/packages/subagent/tool-subagent/src/index.ts index ca7f20d23d..25bd5e3acf 100644 --- a/packages/subagent/tool-subagent/src/index.ts +++ b/packages/subagent/tool-subagent/src/index.ts @@ -11,10 +11,12 @@ * — there is no provider/type parameter in the model-facing schema. The model * sees only `{ description, prompt }`. * - * The tool DESCRIPTION is derived from the bound provider's context contract - * ({@link providerWording}): a fresh-context provider (spawn, ACP) gets the - * standalone-prompt wording, an inheriting provider (fork) tells the model the - * child already sees the conversation's completed turns. The tool MIRRORS the + * The tool DESCRIPTION is derived from the bound provider's conversation-history + * descriptor ({@link providerWording}): a fresh-conversation provider (spawn, + * ACP) gets the standalone-prompt wording, while a seeded-conversation provider + * (fork) tells the model the child already sees the conversation's completed + * turns. This descriptor says nothing about Cordis scope, services, tools, or + * authority. The tool MIRRORS the * provider's lifecycle via `subagent/provider-added`/`-removed` — it registers * when the provider is (or becomes) available and unregisters when the * provider goes away — so no load-order requirement exists and an HMR reload @@ -154,16 +156,19 @@ function stopReasonError(result: SubagentResult): string | undefined { } /** - * Model-facing wording per context contract ({@link SubagentProvider.inheritsParentContext}). + * Model-facing wording from the provider's conversation-history descriptor + * ({@link SubagentProvider.inheritsParentContext}). * A fresh child needs a standalone prompt; a forked child already sees the * conversation's completed turns — telling the model to restate everything * (or, worse, that the child "does not see this conversation") would be false * for a fork. Exported for tests. - * @param inherits - the bound provider's context contract. + * @param inheritsConversation - whether the child's conversation is seeded + * with the parent's completed turns; this says nothing about tool, service, + * scope, or authority inheritance. * @returns the tool `description` and the `prompt` parameter description. */ -export function providerWording(inherits: boolean): { description: string; promptDescription: string } { - if (inherits) { +export function providerWording(inheritsConversation: boolean): { description: string; promptDescription: string } { + if (inheritsConversation) { return { description: 'Delegate a task to a subagent that INHERITS this conversation: a child agent seeded with all ' diff --git a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts index 4e125d24e1..701a4dc667 100644 --- a/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts +++ b/packages/subagent/tool-subagent/tests/tool-subagent.spec.ts @@ -220,7 +220,7 @@ describe('dsh-tool-subagent', () => { await ctx.plugin(SystemPrompt) await ctx.plugin(ToolRegistry) await ctx.plugin(SubagentService) - const backend = await ctx.plugin(mock, { name: 'mock' }) // spawn-shaped (inherits: false) + const backend = await ctx.plugin(mock, { name: 'mock' }) // fresh conversation (descriptor: false) await ctx.plugin(tool, { provider: 'mock' }) expect(ctx.tools.schemas().find(s => s.name === 'subagent')!.description).toContain('does not see this conversation') @@ -228,7 +228,7 @@ describe('dsh-tool-subagent', () => { await backend.dispose() expect(ctx.tools.schemas().some(s => s.name === 'subagent')).toBe(false) - // Backend reloads with a DIFFERENT contract: the wording is re-derived + // Backend reloads with a DIFFERENT conversation-history descriptor: the wording is re-derived // from the fresh provider, not served stale from the first mount. await ctx.plugin(mock, { name: 'mock', inheritsParentContext: true }) expect(ctx.tools.schemas().find(s => s.name === 'subagent')!.description).toContain('INHERITS this conversation') @@ -273,7 +273,7 @@ describe('dsh-tool-subagent', () => { expect(ctx.tools.schemas().some(s => s.name === 'subagent')).toBe(true) }) - it('derives spawn-shaped wording from a fresh-context provider (default mock)', async () => { + it('derives spawn-shaped wording from a fresh-conversation provider (default mock)', async () => { const ctx = await setup({ provider: 'mock' }) const schema = ctx.tools.schemas().find(s => s.name === 'subagent')! expect(schema.description).toContain('does not see this conversation') @@ -281,7 +281,7 @@ describe('dsh-tool-subagent', () => { expect(props['prompt']!.description).toContain('include everything it needs') }) - it('derives fork-shaped wording from an inheriting provider (the description stops lying)', async () => { + it('derives fork-shaped wording from a seeded-conversation provider (the description stops lying)', async () => { const ctx = await setup({ provider: 'mock', toolName: 'subagent' }, { inheritsParentContext: true }) const schema = ctx.tools.schemas().find(s => s.name === 'subagent')! expect(schema.description).toContain('INHERITS this conversation') @@ -494,6 +494,8 @@ describe('dsh-tool-subagent', () => { }) it.each([ + { label: 'null', value: null as unknown as number }, + { label: 'a string', value: '1' as unknown as number }, { label: 'NaN', value: Number.NaN }, { label: 'positive infinity', value: Number.POSITIVE_INFINITY }, { label: 'negative infinity', value: Number.NEGATIVE_INFINITY }, @@ -506,6 +508,16 @@ describe('dsh-tool-subagent', () => { .rejects.toThrow() }) + it('validates maxDepth when apply() is invoked directly without Schemastery', () => { + const ctx = new Context() + expect(() => { + tool.apply(ctx, { + provider: 'unused', + maxDepth: Number.NaN, + }) + }).toThrow('subagent maxDepth must be a non-negative safe integer') + }) + it('a partial toolFilter (deny only) does not materialize an empty allow-list (deny-all trap)', async () => { let seen: { toolFilter?: { allow?: string[]; deny?: string[] } } | undefined const ctx = new Context() diff --git a/packages/support/subagent-mock/README.md b/packages/support/subagent-mock/README.md index af169ed4c2..6114bdf2c9 100644 --- a/packages/support/subagent-mock/README.md +++ b/packages/support/subagent-mock/README.md @@ -14,7 +14,7 @@ Load it as a plugin (functional shape: `name`/`inject`/`Config`/`apply`, no defa | `reply` | `mock subagent reply` | The scripted child's final answer text. | | `stopReason` | `completed` | The stop reason `result` settles with. | | `capabilities` | all `true` | Which start-time capabilities (`outputSchema`/`depthLimit`/`toolFilter`) the provider advertises. | -| `inheritsParentContext` | `false` | The context contract to declare; `true` exercises the fork-shaped tool wording in consumer tests. | +| `inheritsParentContext` | `false` | Conversation-history descriptor: `false` means fresh, while `true` exercises seeded/fork wording. It says nothing about tool, service, scope, or authority inheritance. | | `structured` | `{ reply }` | Structured value surfaced when a request carries an `outputSchema` and the capability is on. | A `cancel()` issued before `result` settles flips the stop reason to `aborted`, so the cancellation path is observable. diff --git a/packages/support/subagent-mock/src/index.ts b/packages/support/subagent-mock/src/index.ts index 715c7451d7..554889db71 100644 --- a/packages/support/subagent-mock/src/index.ts +++ b/packages/support/subagent-mock/src/index.ts @@ -94,9 +94,11 @@ export interface Config { /** Which start-time capabilities to advertise (default: all `true`). */ capabilities?: Partial /** - * The context contract to declare ({@link SubagentProvider.inheritsParentContext}); - * default `false` (spawn-like). Set `true` to exercise the fork-shaped tool - * wording in consumer tests. + * The conversation-history descriptor to declare + * ({@link SubagentProvider.inheritsParentContext}); default `false` (fresh + * conversation). Set `true` to exercise seeded/fork wording in consumer + * tests. This flag says nothing about tool, service, scope, or authority + * inheritance. */ inheritsParentContext?: boolean /** From c6d012109f00a01cd91887159b15e1747f04e30f Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 12:22:19 +0800 Subject: [PATCH 212/232] docs(scope): restructure RFC top-down --- .../2026-07-08-agent-scope-contexts.md | 1522 ++++++++--------- 1 file changed, 734 insertions(+), 788 deletions(-) diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index 9162273c72..9707d550f2 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -4,64 +4,41 @@ Status: implemented ## Problem -One application can run many agents that share infrastructure but must not share every capability or policy. A child agent may need a different persona, fewer tools, its own structured-result schema, and listeners that govern only its work, while still using the deployment's model adapters, persistence backend, tool implementations, and user interface. +One application needs to share infrastructure across many agents while giving each agent a coherent local world. Model adapters, persistence, user interfaces, and most tool implementations belong to the deployment; personas, visible tools, live policy, and cleanup often belong to one agent. -This is a composition problem, not an application-isolation or security-confinement problem. Starting a separate service graph for every child would isolate too much; putting every registration in one global graph isolates too little. +This is a composition problem, not an application-isolation problem. A separate service graph per agent duplicates too much shared infrastructure, while one global registration graph lets agent-specific contributions leak across agents. -| Surface | What varies by agent | Failure when it is only global | +| Question | Required behavior | Failure without it | |---|---|---| -| Tools | Available capabilities, a child-only tool, or a scoped replacement for one implementation | The model receives the wrong tool view, or a child-specific tool leaks into every prompt | -| Prompt state | Persona, instructions, variables, and [Code Mode](../feature/2026-06-15-code-mode.md) SDK declarations | Every agent receives the same instructions or runtime facts | -| Live policy | Hooks, execution guards, result observers, and continuation rules | A listener intended for one agent can alter another agent's work | -| Lifetime | Cleanup when the agent fails, is cancelled, is disposed, or loses its owner | Registrations outlive the agent or disappear before its final work settles | +| What participates? | Each operation sees deployment-global contributions plus the contributions for its agent | A child-only tool, prompt, or listener affects unrelated agents | +| When does that world exist? | The complete agent world appears only after setup and remains until work and cleanup reach quiescence | Observers see partial setup, or final work loses its scoped policy | +| Which value is authoritative? | Validation, execution, logging, and observation use the same accepted data | Mutable inputs pass one check and produce different behavior later | +| What may extensions override? | Ordinary middleware stays extensible, while a few protocol invariants finish at owner-controlled boundaries | Listener order removes required prompt state, re-allows denied work, commits a failed result, or forces an extra model step | -Three consistency requirements make the problem deeper than filtering a list. First, the model-visible and executable views must agree: a hidden tool must not remain callable, and an advertised tool must not fail merely because execution used a different registry view. This agreement must also cover Code Mode bindings and UI presentation. - -Second, some rules are invariants rather than cooperative extensions. An ordinary middleware listener may replace a prompt assembly, turn an allow into a deny, rewrite a result, force another model step, or short-circuit listeners registered after it. Structured output therefore cannot rely on being “first” or “last” in an extensible listener chain; the owning service needs a final boundary for rules that later listeners must not undo. - -Third, accepting a value must transfer ownership of the exact value that was checked. TypeScript `readonly` annotations disappear at runtime, callers and providers may expose stateful accessors, and a validation pass followed by a clone reads mutable input twice. Identity fields, schemas, session data, requests, and results therefore need runtime boundaries that capture each caller-owned field once, materialize data once, and expose only owner-controlled snapshots. Otherwise the checked, executed, logged, and observed views can diverge even when scope resolution itself is correct. - -The failure does not require TypeScript or threads. One JavaScript getter is enough to make a two-read boundary validate one name and store another: - -```js -let reads = 0 -const input = { - get name() { - reads += 1 - return reads === 1 ? 'safe_tool' : 'different_tool' - }, -} - -// Wrong: validation and storage observe different values. -validateName(input.name) -storeName(input.name) - -// Right: capture once, then validate and store that capture. -reads = 0 -const acceptedName = input.name -validateName(acceptedName) -storeName(acceptedName) -``` - -The subagent API makes these requirements concrete. Two concurrent children can request different personas, tool filters, and output schemas. Those requests are honest only when each child receives an independently owned view and when its terminal-output protocol survives unrelated plugins. +In-process subagents expose all four requirements at once. Two concurrent children can request different personas, tool filters, and structured-result schemas; each child must receive its own complete view, publish only after that view exists, preserve the exact accepted request, and keep terminal structured-output rules stronger than unrelated middleware. ## Decision -Each live agent owns a registration context named `agent.ctx`, and services expose narrow owner-final policy boundaries where ordinary middleware ordering is not strong enough. Together these choices make one agent's registration view composable with normal plugin APIs while keeping visibility, observation, and cleanup aligned. +Every live agent owns one flat registration layer through `agent.ctx`. Four matching rules make that layer coherent: registration and dispatch select the agent view, lifecycle publishes and revokes the view transactionally, acceptance transfers caller data into owner-controlled records, and four narrow owner-final checkpoints preserve invariants after extensible middleware. -The design has five parts: - -| Part | Rule | Purpose | +| Governing question | Decision | Guarantee | |---|---|---| -| Registration scope | A registration through a plain plugin context is global; the same registration through `agent.ctx` belongs to that agent | Reuse existing APIs for per-agent tools, prompt state, and listeners | -| Lifecycle transaction | Caller and factory ownership cover create and resume from reservation or load through scoped setup, ordered publication, and teardown | No observer sees a partially composed agent, and caller or provider loss cannot orphan work | -| Lifecycle foundation | Effects become owner-visible before setup, child fibers become parent-owned before publication, and unloading fibers reject late effects | Reentrant HMR cannot strand a half-built or cleanup-time registration outside the unload snapshot | -| Owner-final policy | Prompt protection, tool guards, final tool-result observation, and terminal turn stopping run at service-owned boundaries | Invariants do not depend on listener registration order | -| Boundary ownership | Services capture fixed fields once, materialize lossless-JSON data once, and publish owner-controlled views | Validation, execution, persistence, and telemetry cannot observe different values from one call | +| What participates? | Resolve deployment globals plus exactly one agent layer; route scoped events by the operation's real agent | Data and behavior use the same flat agent view | +| When does it exist? | Treat scope, session, registry entry, and driver as one caller- and agent-factory-owned transaction | Setup is unpublished; teardown drains before revocation | +| Which value is authoritative? | Read caller-owned fields once, validate that capture, and retain only owner-controlled identities or snapshots | Checked, executed, logged, and observed values cannot diverge | +| What may extensions override? | Keep waterfalls for cooperation, then place prompt protection, monotonic guards, final result observation, and terminal turn stopping at service-owned boundaries | Extension ordering cannot undo protocol invariants | -### One public call shows the composition model +The scope is deliberately flat. An agent resolves deployment-global registrations plus its own registrations; it never traverses parent or sibling scopes. Parent ownership links lifetimes without importing the parent's registration layer. -The common case uses ordinary registration APIs through the setup context. Code blocks in this RFC are focused examples and start from a fresh initialized application unless one explicitly continues another. Here `ctx` is a plugin's service context, `setup(agentCtx)` receives the unpublished agent's scoped context, and helpers such as `AgentId`, `SessionId`, and `CallId` construct opaque IDs. Assume the deployment already registered global `read` and `bash` tools; this creates a reviewer whose persona, global-tool filter, and extra reporting tool exist only for that agent and disappear with its handle: +This is a composition boundary, not an authority boundary. Agent scopes compose trusted in-process registrations; they do not sandbox plugins or define a parent-to-child authority lattice. A plugin holding a Cordis context runs in the same process and can call the services injected into that context. Scope selection answers which registered contribution participates and who cleans it up, not whether a child can do no more than its parent. + +The detailed consequences for tool filters, future global registrations, and child-local tools appear under [the tool-view contract](#the-tool-view-is-live-and-executable). Security hardening requires a separate authority representation and enforcement boundary. + +### Worked example: one agent-local reviewer + +Agent setup uses ordinary registration methods through `agent.ctx`; the context determines visibility and cleanup together. In these focused examples, `ctx` is a plugin service context, `setup(agentCtx)` receives the unpublished agent's scoped context, and helpers such as `AgentId`, `SessionId`, and `CallId` construct opaque IDs. + +Assume the deployment already registered global `read` and `bash` tools. This creates a reviewer whose persona, filtered global tools, and reporting tool exist only for that agent and disappear with its handle: ```js const reviewSummaryTool = { @@ -92,21 +69,214 @@ const reviewer = handle.agent ctx.tools.get('read', reviewer) // global tool, visible ctx.tools.get('bash', reviewer) // undefined: filtered global tool ctx.tools.get('review_summary') // undefined: not global -ctx.tools.get('review_summary', reviewer) // child-only definition +ctx.tools.get('review_summary', reviewer) // reviewer-only definition await handle.dispose() ctx.tools.get('review_summary', reviewer) // undefined: scope was unwound ``` -The rest of this RFC explains why the short setup above needs scope-aware resolution, unpublished construction, ordered teardown, and owner-final policy. +The remaining sections descend from this contract. -### Security and authority are explicit non-goals +## Reader model: domain terms and Cordis mechanics -Scoped contexts are trusted in-process registration composition, not a sandbox, authorization ledger, or parent-to-child authority lattice. A plugin with a Cordis context executes in the same process and can call the services injected into that context. Scope filtering decides which registered contribution participates in one operation and who cleans it up; it does not prove that a child can do no more than its parent. +Readers need four domain terms and four Cordis mechanics to follow the implementation. Readers already familiar with this codebase and Cordis can skim this section. -#### Flat scopes do not enforce a parent-to-child subset +### Recurring domain terms -Flat lookup makes that boundary visible. Parent lifetime ownership does not cause the child to inherit the parent's restriction, and a child-local registration is merged after the global filter: +Four domain terms keep the rest of the RFC compact. A **Session** is an agent run's append-only event log, from which model history and durable replay are derived. **Lossless JSON** is the JSON subset that can be copied without changing meaning: primitives, dense arrays, and plain objects; cycles, sparse arrays, exotic prototypes, non-finite numbers, negative zero, `undefined`, `bigint`, functions, and symbols are rejected. An **end capability** is an actual callable tool implementation, whether the model sees it as a native schema or a Code Mode binding. **Code Mode** gives the model a generated SDK and a reserved `run_code` transport instead of advertising every end capability as a native wire tool. + +### Four Cordis mechanics + +Contexts select service access and registration origin, fibers own effects, waterfalls provide cooperative transformation, and dispatch receivers select listeners. + +| Cordis concept | Meaning in this RFC | +|---|---| +| Context | The object through which a plugin reaches services and registers contributions; a derived context can carry a different registration scope | +| Fiber and effect | The runtime owner and one owned piece of setup/cleanup; disposing the fiber unwinds its effects | +| Waterfall | Ordered around-middleware whose listener calls `next()` to include downstream work and may transform or short-circuit the result | +| Dispatch receiver | The `this` object used by Cordis listener filtering; a scope carrier encodes the operation's agent key | + +#### Context selects both service access and registration origin + +A Cordis `Context` is the object through which code calls services such as `ctx.tools`, `ctx.systemPrompt`, and `ctx.sessions`. A service can recover the context through which it was accessed, so the same method can register globally from a plain plugin context or locally from `agent.ctx` without adding an `agent` option to every registration API. Cordis implements contextual service access with a **traced receiver**: a proxy that carries the accessing context while forwarding calls to the concrete service object. + +```js +ctx.tools.register(globalTool) +agent.ctx.tools.register(agentOnlyTool) + +ctx.on('tools/result', globalObserver) +agent.ctx.on('tools/result', agentObserver) +``` + +A context also exposes the dependency view injected into the plugin that minted it. `agent.ctx` therefore carries the agent loop's deliberate service surface; it is not an ambient root context or a security boundary. + +#### Effects make cleanup follow ownership + +An effect is setup whose cleanup belongs to a fiber. Tool registration, prompt contribution, event subscription, and an agent scope are effects, so normal disposal, failure, and hot module reload all follow the same ownership graph. + +```js +ctx.effect(() => { + const resource = openResource() + return async () => { + await resource.close() + } +}) +``` + +Cordis also supports generator effects that nest child effects in a chosen teardown order. The lifecycle section explains why construction must become owner-visible before arbitrary callbacks run. + +#### Waterfalls remain cooperative extension points + +A waterfall listener wraps downstream work. Calling `next()` includes the remaining listeners and base implementation; returning directly skips that downstream portion. + +```js +ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { + const downstream = await next() + return { + ...downstream, + sections: [...downstream.sections, extraSection], + } +}) + +ctx.on('system-prompt/assemble', async () => replacementAssembly) +// The direct return skips this listener's downstream/base. An outer listener +// that already awaited next() still resumes around replacementAssembly. +``` + +This flexibility is intentional for ordinary policy, but it cannot express a fact that must remain true after every wrapper and short-circuit. [Owner-final policy](#owner-final-policy-four-narrow-boundaries) adds only the four final checkpoints that need stronger semantics. + +#### Dispatch receivers select scoped listeners + +Cordis filters listeners using the dispatch receiver, the object visible as `this` inside a function-style listener. `dsh-scope` builds a receiver carrying the operation's scope key, allowing global listeners plus listeners registered for that exact key while rejecting other agents' listeners. + +The receiver is live coordination state, not durable session data. For example, `tools/result` is a live final-outcome notification, while `tool/result` is an append-only session event used for replay and model history. + +## Registration and delivery: global plus exactly one agent layer + +One scope key controls both registered data and registered behavior. Reads combine the deployment-global layer with exactly one agent layer, while scoped event dispatch admits global listeners plus the listeners for that same agent. + +Scope keys are opaque objects compared by identity; a live `Agent` is its own registration key. There is no name-based equality or parent traversal. + +### Scope mechanism: context, key, and lifetime + +The registration context selects the layer, the scope primitive binds that layer to cleanup, and the nearest scope tag—not an inherited convenience property—selects the key. + +#### The calling context selects visibility and cleanup + +A contribution made through a plain plugin context is visible to every agent and disposed with that plugin. A contribution made through `agent.ctx` is visible only to that agent and disposed with its scope. + +| Registration origin | Visible to | Disposed with | +|---|---|---| +| Plain plugin context | Every agent | Registering plugin | +| `agent.ctx` | That agent only | Agent scope | + +The table describes ordinary registrations. Cordis listeners alone have an explicit `{ global: true }` bypass: it suppresses contextual filtering, so a listener registered through `agent.ctx` can receive other agents' and subjectless dispatches while its cleanup still belongs to that agent scope. Cross-scope observation must opt into this bypass deliberately. + +Named scoped contributions shadow same-named global contributions. This is how a child persona replaces `deployment:persona` and how one agent can use a different implementation under the same tool name. Duplicate names within one layer still fail loudly. + +```text +resolveLayer(agentA): + visible = copy(global registrations) + visible.overlay(registrations from agentA.ctx) + return visible +``` + +There is no ancestor loop. Resolving for agent A never reads parent or sibling layers. + +#### The scope primitive keeps layer and owner together + +`dsh-scope` exposes only the operations needed to mint a tagged ownership layer, read its key, target dispatch, and reach quiescent cleanup. A separate `{ scope }` option on each registry could express “visible to A, disposed with B”; the scoped context makes that mismatch unrepresentable. + +| Operation | Responsibility | +|---|---| +| `createScope(context, key)` | Mount an ownership fiber and return its tagged context | +| `scopeOf(context)` | Read the nearest inherited scope key | +| `scopeTarget(subject, key)` | Build the receiver for scope-filtered dispatch | +| `Scope.dispose()` | Return one shared idempotent promise that reaches cleanup quiescence | +| `Scope.rawDispose` | Expose the exact Cordis disposer for ordered generator composition | + +`Scope.dispose()` and `rawDispose` serve different callers. Cordis raw disposers are single-shot, so a repeated raw call need not wait for an earlier asynchronous teardown; the public method follows the backing fiber's in-flight cleanup and gives racing callers the same completion promise. Generator lifecycles use `rawDispose` because Cordis recognizes nested ownership by exact disposer identity. + +The primitive has one essential shape: + +```text +createScope(parentContext, key): + fiber = mount no-op plugin under parentContext + scopedContext = derive fiber.context with nearest-scope-tag = key + + rawDispose = fiber's exact disposer + dispose = memoized operation that: + invoke rawDispose if teardown has not started + follow fiber's in-flight cleanup until quiescent + + return { ctx: scopedContext, rawDispose, dispose } +``` + +Derived contexts inherit the nearest tag. Mounting a plugin under `agent.ctx` preserves the agent scope; deliberately creating another scope replaces the tag below it. + +#### `ctx.agent` is an association; `scopeOf()` selects the layer + +`agent.ctx.agent` gives setup code convenient access to the associated agent, but the nearest scope tag remains authoritative for resolution. A nested scope can inherit the ergonomic `agent` property while replacing the registration key. + +```js +const auditKey = {} +const auditScope = createScope(agent.ctx, auditKey) + +auditScope.ctx.agent === agent // true: inherited association +scopeOf(auditScope.ctx) === auditKey // true: nearest registration key + +await auditScope.dispose() +``` + +This separation keeps the generic scope package independent of the agent package. + +### Resolution contracts preserve domain semantics + +The shared scope selects two layers, but each registry retains its own merge rules and must keep presentation, lookup, and execution coherent within the view it owns. + +#### Registries retain domain-specific merge rules + +The shared primitive answers “which layer?” and “who owns cleanup?”; each service still defines how its values combine. Prompt sections, variables, and tools use scoped-over-global shadowing by name. Tool-schema providers are additive. Tool lookup and execution receive an agent or scope explicitly, while prompt assembly receives an `AssembleContext` whose `scope` selects the layer. + +Calling a read method through `agent.ctx` does not silently choose an agent subject. For example, `agent.ctx.systemPrompt.assemble()` without an assembly scope still requests the global view. Registration origin and operation subject remain explicit, allowing one shared service to act for any agent. + +#### The tool view is live and executable + +Within `ToolRegistry`'s contribution, presentation, lookup, execution, Code Mode bindings, timeouts, inspection, and UI rendering all consume one resolved view. The registry filters the live global layer, overlays scope-local tools, and then adds reserved presentation transport when the configured mode requires it. + +```js +ctx.tools.register(readTool) +ctx.tools.register(bashTool) + +agent.ctx.tools.restrict({ allow: ['read'] }) +agent.ctx.tools.register(reviewSummaryTool) + +ctx.tools.get('read', agent) // visible global definition +ctx.tools.get('bash', agent) // undefined: filtered global definition +ctx.tools.get('review_summary', agent) // visible scope-local definition +ctx.tools.get('review_summary') // undefined: absent globally +``` + +Executing `bash` for this agent follows the same lookup and returns the ordinary unknown-tool error. A hidden global implementation therefore cannot remain callable through a second registry. + +Final prompt assembly remains extensible beyond `ToolRegistry`. A lower-level `systemPrompt.tools()` provider or assembly listener may add an unrelated wire schema; that extension then owns the matching executable behavior and ordering. The one-view guarantee covers the registry-owned schemas, SDK bindings, lookup, execution, and presentation—not arbitrary schemas contributed elsewhere. + +A restriction filters only the global end-capability layer. `allow` keeps named global tools, `deny` removes named global tools, multiple restrictions intersect, and scope-local tools are merged afterward. The filter values are captured when registered, but resolution uses the live global registry: + +Filter presence is explicit: omitting a filter installs no restriction, `restrict({})` rejects as ambiguous, and `allow: []` deliberately hides every global end capability. + +```text +at time 0: + global tools = { read, bash } + deny { bash } view = { read } + allow { read } view = { read } + +after registering global tool web: + deny { bash } view = { read, web } + allow { read } view = { read } +``` + +The flat child relationship follows directly: ```text global tools = { read, bash } @@ -119,291 +289,30 @@ visible(parent) = { read, delegate } visible(child) = { read, bash, deploy } ``` -Through `delegate`, a parent can deliberately start this child and indirectly obtain work performed with `bash` or `deploy`. This RFC neither prevents nor blesses that arrangement; deployments that need a non-escalation guarantee require a separate authority design and enforcement boundary. +Through `delegate`, the parent can ask the child to perform work with `bash` or `deploy`. This is why registration scope is not an authority ceiling. A deployment that needs parent-to-child non-escalation requires a separate authorization model, including authority representation, propagation, and execution checks. -#### Restrictions are live views, not grant snapshots +`run_code` is a reserved presentation transport rather than an end capability. Restrictions cannot remove it, scope-local tools cannot shadow it, and configuration cannot explicitly allow or deny it. In Code Mode the transport remains available while its generated SDK contains only the end capabilities visible to the agent. Without that exception, a filter could leave SDK declarations in the prompt but remove the only invocation path. -Restrictions also resolve against a live global registry rather than an immutable authorization snapshot. A deny-list names removals, while an allow-list names the complete retained global set: +Two similarly named checks use different universes. `ToolRegistry.knownNames()` exposes the pre-restriction end-capability set so a misspelled restriction fails loudly. The system-prompt provider validates `toolOrder` against a mode-specific set: native mode accepts end capabilities, both mode accepts end capabilities plus `run_code`, and code mode accepts only `run_code`. Filtering one agent's view does not turn a valid deployment-wide order into a configuration error. -```text -at time 0: - global tools = { read, bash } - deny { bash } view = { read } - allow { read } view = { read } +### Dispatch contract follows the operation subject -after registering global tool web: - deny { bash } view = { read, web } - allow { read } view = { read } -``` +The operation supplies the scope key, and a carrier composes that key with the subject's existing dispatch behavior. Callers cannot provide an independent routing value that might disagree with the payload. -Scope-local tools are merged after either filter. There is no separate authority-versus-visibility ledger, frozen creation-time grant snapshot, parent-subset rule, future-tool grant API, or generic capability/output/terminal tag system here. `run_code` and `structured_output` have explicit protocol-owned treatment described below; they do not imply a general security taxonomy. Those questions are separate design work rather than hidden promises of scoped contexts. +#### The operation subject selects the listener set -Three domain terms recur below. A **Session** is one agent run's append-only event log, from which model history and durable replay are derived. **Lossless JSON** means JSON primitives plus dense arrays and plain objects that can be copied without changing meaning; the boundary rejects sparse arrays, cycles, exotic prototypes, non-finite numbers, negative zero, `undefined`, `bigint`, functions, and symbols instead of coercing or erasing them. **Code Mode** presents the model with a generated software-development-kit interface and a reserved `run_code` transport, rather than advertising every end-capability as a native tool. - -Ownership stays with the component that can enforce each fact. The scope package owns scope tags and carrier construction; each registry owns acceptance snapshots and resolution; the caller owns the programmatic agent lifetime it requested; the concrete agent factory owns identity reservation, setup, publication, and structural invalidation of agents that still depend on it; the session owns accepted history; the tool and subagent services own their pipeline records; and each workflow run captures its holder-bound dependencies and owns its cancellation after the engine returns it. A caller never validates a value that another component later rereads from the caller's mutable object. - -The scope is flat. An agent resolves the deployment-global layer plus its own layer; a child does not inherit registrations from its parent's scope. Parent/child lineage remains explicit session data, and parent-owned disposal links lifetimes without inheriting registrations. - -The core implementation lives in [`dsh-scope`](../../../../packages/core/scope/README.md), [`dsh-agent`](../../../../packages/core/agent/README.md), [`dsh-agent-loop`](../../../../packages/core/agent-loop/README.md), [`dsh-session`](../../../../packages/core/session/README.md), [`dsh-system-prompt`](../../../../packages/core/system-prompt/README.md), and [`dsh-tools`](../../../../packages/core/tools/README.md). The composition example spans [`dsh-subagent`](../../../../packages/subagent/subagent/README.md), [`dsh-subagent-inprocess`](../../../../packages/subagent/subagent-inprocess/README.md), and [`dsh-workflow-workerthread`](../../../../packages/workflow/workflow-workerthread/README.md). The [generated Cordis event catalog](../../../cordis-catalog/events.md) is the exhaustive event-signature reference; this RFC explains why the contracts have their current shape. - -## Background: the small Cordis vocabulary used here - -The design relies on four framework ideas: contexts, effects, waterfall events, and dispatch receivers. This section gives the complete mental model needed for the rest of the RFC; the [Cordis primer](../../../cordis-primer.md) covers the framework more broadly. - -### A context is both a service view and a registration origin - -A Cordis `Context` is the object through which a plugin reaches services such as `ctx.tools`, `ctx.systemPrompt`, and `ctx.sessions`. A service method can recover the context through which it was accessed, so the service can tell whether a call came from an ordinary plugin context or from an agent's scoped context without adding a `scope` parameter to every registration API. - -A context also carries an injected dependency view. A derived context reaches the services injected into the plugin that created it. Handing out `agent.ctx` therefore hands out the agent loop's injected service surface; it is not an ambient root context or a security confinement boundary. - -Factory delegation uses two contexts whose jobs must remain separate. The registry derives a caller-bound context carrying the fiber and scope from which `ctx.agents.create()` or `resume()` was called and passes it explicitly as `ownerCtx`; those facts identify the fiber and optional parent agent that own the requested lifetime. When the registered factory is itself a Cordis service, the registry also invokes it through a traced receiver, which preserves the factory's own injected dependency origin. A plain object that merely implements the factory methods receives the same explicit `ownerCtx` without depending on Cordis tracing. Conflating these roles would either attach the agent to the factory registrant instead of the caller or make the concrete loop resolve dependencies from the wrong service view. - -The object before a service or event method selects the registration origin. The method itself does not need an extra agent parameter: - -```js -ctx.tools.register(globalTool) -agent.ctx.tools.register(agentOnlyTool) - -ctx.on('tools/result', globalObserver) -agent.ctx.on('tools/result', agentObserver) -``` - -Factory calls preserve caller ownership and factory dependency lookup as separate values: - -```text -callerCtx.agents.create(options) - ownerCtx = context carrying callerCtx's fiber and scope - factoryThis = concrete factory traced through ownerCtx - Reflect.apply(capturedCreateAgent, factoryThis, [ownerCtx, options]) -``` - -### Effects give registrations an owner - -A Cordis effect is work whose cleanup belongs to a runtime unit called a fiber. Tool registration, prompt contribution, and event subscription are effects, so disposing their fiber unwinds them on normal teardown, failure, or hot reload. - -Ownership must exist before effect setup can call arbitrary code. The vendored Fiber implementation therefore places an effect's cleanup wrapper in the owner list before running its setup body; a reentrant unload sees that in-construction effect and waits for setup plus every cleanup it collected. A child fiber likewise receives its parent-owned disposer before `internal/plugin` announces the child. Teardown delivers that notification with per-observer failure containment so one callback cannot starve peers or interrupt cleanup. Effects remain legal while a fiber is pending or loading, because setup needs them, but a fiber already unloading rejects new effects: its cleanup snapshot has been taken, so accepting another registration would strand it in the old epoch. - -`dsh-scope` mounts a no-op plugin fiber for each scope. The plugin contributes no behavior; its fiber is the ownership bucket for everything registered through the scoped context. - -In its simplest form, an effect is a setup function that returns its cleanup. Cordis also supports generator effects that compose child effects in a chosen order. In either form Cordis records the wrapper before calling setup, so even setup-triggered reentrant teardown can find and await it: - -```js -ctx.effect(() => { - const resource = openResource() - return async () => { - await resource.close() - } -}) -``` - -### A waterfall is ordered around-middleware - -A Cordis waterfall is an extensible middleware chain. A listener calls `next()` to delegate, can inspect or replace the downstream result, and can return without calling `next()` to short-circuit everything inside it. - -This flexibility is useful for cooperative transformations, but registration order is not an invariant boundary. A later plugin can prepend another listener, a wrapper can replace the downstream result after `next()` returns, and a short-circuit can prevent inner listeners from running at all. - -The code shape is ordinary around-middleware. Calling `next()` includes downstream work; returning directly skips that listener's downstream listeners and base implementation: - -```js -ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { - const downstream = await next() - return { - ...downstream, - sections: [...downstream.sections, extraSection], - } -}) - -ctx.on('system-prompt/assemble', async () => replacementAssembly) -// This listener skips its downstream/base. An outer listener that already -// awaited next() still resumes around replacementAssembly. -``` - -### The dispatch receiver selects scoped listeners - -Cordis filters event listeners using the dispatch receiver, the object exposed as `this` inside a function-style listener. `dsh-scope` supplies a receiver carrying the operation's scope key, so the event system can admit global listeners plus listeners registered for that key and reject listeners belonging to other agents. - -This receiver is live coordination state, not a durable session fact. The distinction matters later: `tools/result` is a live final-outcome notification, while the similarly named `tool/result` is an append-only session event stored for replay and model history. - -## Agent-scoped registrations - -An agent scope couples two facts that must not drift apart: who can see a registration and who disposes it. The calling context determines both facts, leaving the domain-specific merge rules to each registry. - -### The resolution model is global plus exactly one scope - -Every scope-aware registry keeps a global layer and per-scope layers. Resolving for agent A combines the global layer with A's layer only; it does not walk A's parent lineage or combine sibling scopes. - -| Registration origin | Visible to | Disposed with | -|---|---|---| -| Plain plugin context | Every agent | The registering plugin | -| `agent.ctx` | That agent only | That agent's scope | - -Named scoped contributions shadow a same-named global contribution. A child persona is therefore a scoped `deployment:persona` section, and a per-agent tool implementation can keep the same model-facing name. Duplicate names within one layer still fail loudly. The deliberate exception is a globally protected prompt-section name, whose owner reserves it against scoped shadowing. - -The plugin-facing mechanism is the same API called through a different context. In language-neutral pseudocode: - -```text -# Deployment-wide contribution -appContext.tools.register(readTool) - -# Contribution visible only to agent A and disposed with A -agentA.ctx.tools.register(childOnlyTool) - -resolveTools(agent A): - visible = copy(globalTools allowed by A's restrictions) - visible.overlay(tools registered through A.ctx) - visible.append(reserved presentation transport, when configured) - return visible -``` - -There is no `for each ancestor` step. Resolving for A never reads the parent or sibling layers. - -The scope key is an opaque object compared by identity. The harness uses the live `Agent` object as its own key, so event payloads, tool executions, and prompt assemblies that already carry the agent can select the correct layer without translating through a string ID that may later be reused. - -### `agent.ctx.agent` is an association, not the scope resolver - -`agent.ctx` carries an own `agent` property for setup code and plugin ergonomics. Contexts derived from it inherit that association, while a plain context reads `undefined`. - -The property is deliberately not treated as the authoritative scope tag. A nested scope can install a nearer scope key while still inheriting the original `ctx.agent` association, so lower-level services resolve layers with `scopeOf(context)`. In normal agent composition the two point at the same live agent; the separation keeps the generic scope primitive independent of the agent package. - -The distinction appears when a plugin deliberately nests another scope: - -```js -const auditKey = {} -const auditScope = createScope(agent.ctx, auditKey) - -auditScope.ctx.agent === agent // true: inherited ergonomic association -scopeOf(auditScope.ctx) === auditKey // true: authoritative nearest scope tag - -await auditScope.dispose() -``` - -### The scope primitive has separate public and composite disposal forms - -`dsh-scope` exposes the minimum operations needed to create a layer, read it, target events, and dispose it. “Quiescent” here means that every asynchronous cleanup registered in the scope has settled and no teardown work remains in flight. - -| Operation | Responsibility | -|---|---| -| `createScope(context, key)` | Mount the ownership fiber and return its tagged derived context | -| `scopeOf(context)` | Read the nearest inherited scope key | -| `scopeTarget(subject, key)` | Build the receiver used for scope-filtered dispatch | -| `Scope.dispose()` | Give ordinary callers an idempotent promise shared by repeat and racing calls until quiescence | -| `Scope.rawDispose` | Expose the exact Cordis disposer so a larger generator lifecycle can nest it at a precise teardown position | - -The two disposal forms solve different framework constraints. Cordis identifies nested effects by disposer-function identity, so an ordered composite lifecycle must yield `rawDispose` exactly. Cordis disposers are also single-shot, so a second raw call may not await the first asynchronous teardown; `Scope.dispose()` follows the backing fiber's in-flight lifecycle and gives all ordinary callers the same quiescence boundary, including a race in which `rawDispose` started first. The test/tooling `ScopeHost.dispose()` extends that shared boundary across its host fiber and every minted child scope. Pre-registration of an effect wrapper solves a different race: it makes the first owner unload see construction in progress without changing this single-shot raw-disposer contract. - -The primitive itself is small. Its essential implementation shape is: - -```text -createScope(parentContext, key): - fiber = mount no-op plugin under parentContext - scopedContext = derive fiber.context with nearest-scope-tag = key - - rawDispose = fiber's exact disposer - dispose = memoized operation that: - invoke rawDispose if it has not started - follow fiber's in-flight teardown until quiescent - - return { ctx: scopedContext, rawDispose, dispose } -``` - -Derived contexts inherit the nearest scope tag. Mounting an ordinary plugin under `agent.ctx` therefore preserves the agent's scope, while deliberately creating another scope replaces the tag for registrations below it. - -### Registry resolution stays domain-specific - -The shared primitive answers “which layer?” and “who owns cleanup?” but does not force every service to merge data the same way. Tools, prompt sections, variables, and tool-schema providers retain rules appropriate to their domains. - -Prompt sections, prompt variables, and tools use scoped-over-global shadowing by name. Tool-schema providers are additive, but a provider registered through `agent.ctx` participates only in that agent's assemblies. Read operations name the subject explicitly: tool lookup and execution receive an agent or scope, and prompt assembly receives an `AssembleContext` whose `scope` selects the layer. - -Calling a service through `agent.ctx` does not implicitly make every later read agent-scoped. For example, `agent.ctx.systemPrompt.assemble()` without an assembly scope still requests the global layer. This keeps shared services able to operate on behalf of any subject and makes the subject visible at the read or execution call site. - -### Tool registrations are frozen snapshots - -The tool view must not change because a caller kept the object it passed to `register()` or received a definition from `get()` or `visible()`. Registration therefore creates the stored identity once; future changes happen through explicit unregister/register effects. - -Tool parameters cross the model and log boundary, so the registry materializes them with `snapshotJsonValue`: one recursive traversal reads each property once, rejects anything outside lossless JSON, and constructs the detached value that is actually stored. A check followed by `structuredClone` is not equivalent—a getter could return plain JSON to the check and a class instance to the clone, which would erase its prototype and silently accept different data. - -The first-party `defineTool()` helper closes the authoring boundary with the same primitive. It reads every top-level option once, materializes the `SchemaSpec`, and derives an independent wire schema plus all later execute and presentation validation from that accepted snapshot. Without that split, mutating an author-owned spec after definition could make the model call a schema that the tool no longer accepts. - -Registration then reads every top-level definition field exactly once, validates, binds, and stores only those captured values; a stateful `parameters` or callback accessor therefore cannot make the checked definition differ from the executable one. It snapshots the scalar fields, binds each callback once to the original definition as its method receiver, and deep-freezes the stored record. Replacing `definition.execute` after registration therefore has no effect, while a callback can still deliberately read mutable state from its closure or original receiver. `get()` and `visible()` return the frozen stored definitions; `schemas()` returns detached schema projections. - -```text -defineTool(options): - accepted = read each top-level option exactly once - parameterSpec = snapshotLosslessJson(accepted.parameters) - wireParameters = snapshotLosslessJson(convertToJsonSchema(parameterSpec)) - build execute and presentation validators over parameterSpec - -registerTool(context, definition): - accepted = read each top-level definition field exactly once - parameters = snapshotLosslessJson(accepted.parameters) - - stored = deepFreeze({ - accepted name, description, timeout, - parameters, - execute: bind accepted.execute to definition, - presentation callbacks: bind once when present - }) - - layerFor(scopeOf(context)).add(stored.name, stored) -``` - -The reserved Code Mode transport uses the same frozen-definition contract even though it lives outside the ordinary layers. - -### Tool restrictions filter the global view without removing transport - -A tool restriction masks the global end-capability layer for one agent, while tools registered in that agent's own layer are merged afterward. Multiple restrictions intersect, so separately installed filters can only reduce the global part of the view; they do not filter scope-local registrations. - -The restriction reads `allow` and `deny` once, snapshots those exact values, rejects an empty filter, and validates named tools against the pre-restriction capability universe. The same captured arrays are then enforced, so a stateful accessor cannot pass one policy through validation and install another. A restricted-away tool behaves like an unknown tool at execution, avoiding disclosure of a hidden global implementation. - -[Code Mode](../feature/2026-06-15-code-mode.md)'s `run_code` is not an end capability. It is a reserved presentation transport that carries calls to the visible end capabilities, so the registry keeps it outside both global and scoped registration layers: restrictions cannot remove it, a scoped tool cannot shadow it, and configuration cannot explicitly allow or deny it. Without this exception, a restriction could leave the generated SDK in the prompt but remove the only way to invoke it. - -The registry still uses one executable visibility view. It first resolves filtered global capabilities plus scope-local registrations, then appends the reserved transport in non-native modes; registry-owned prompt schemas, lookup, execution, Code Mode SDK bindings, timeout lookup, inspection, and UI presentation all consume that view. - -The public lookup API exposes the exact same resolution used for prompt schemas and execution: - -```js -ctx.tools.register(readTool) -ctx.tools.register(bashTool) - -agent.ctx.tools.restrict({ allow: ['read'] }) -agent.ctx.tools.register(reviewSummaryTool) - -ctx.tools.get('read', agent) // visible global definition -ctx.tools.get('bash', agent) // undefined: filtered global definition -ctx.tools.get('review_summary', agent) // visible scope-local definition -ctx.tools.get('review_summary') // undefined: absent from global view -``` - -Executing `bash` for this agent follows the same lookup and produces the ordinary unknown-tool error; it does not bypass the filter through a separate execution registry. The [security non-goal](#security-and-authority-are-explicit-non-goals) explains why later global registrations and scope-local registrations are not an authorization snapshot. - -The guarantee covers the tool registry's contribution. A plugin can deliberately use the lower-level `systemPrompt.tools()` API or assembly waterfall to add an unrelated wire schema; that plugin owns the matching executable behavior and any ordering it introduces. Owner protection preserves reserved named infrastructure without turning the system-prompt service into a validator for unrelated contributions. - -`knownNames` serves a narrower configuration purpose: it is the pre-restriction end-capability universe used to distinguish a typo from a deliberately hidden tool. The system-prompt provider adds presentation names when validating `toolOrder`: `code` mode accepts only `run_code`, `both` accepts end capabilities plus `run_code`, and a per-agent restriction may remove a known capability from one assembly without turning the deployment's order configuration into an error. - -## Scoped event delivery - -Scoped registration is incomplete unless behavior follows the same boundary. An event about agent A reaches global listeners and A-scoped listeners, never listeners installed for B. - -### Delivery is global plus the matching scope - -The dispatch receiver carries the operation's scope key. Its filter admits an unscoped listener or a listener registered through the matching scoped context, while a subject-less dispatch admits unscoped listeners only. Cordis's explicit `{ global: true }` listener option remains the intentional bypass for infrastructure that must observe every dispatch. - -Registry-membership notifications remain unfiltered. Events such as `tools/change`, `system-prompt/change`, `skill/provider-*`, and `subagent/provider-*` describe shared registry state rather than one agent's activity, so a scoped subscriber still observes those global changes. - -### Each event family derives its key from its real subject - -The operation being described determines the key; callers cannot attach an unrelated scope. Fused helpers and store-owned carriers keep the payload subject and delivery subject together. +An event about agent A ordinarily reaches unscoped listeners and A-scoped listeners, never B-scoped listeners. An agent-less dispatch admits only unscoped listeners. A listener registered with `{ global: true }` is the deliberate Cordis filtering bypass described above. The operation itself supplies the key; callers do not attach an independent scope that could disagree with the payload. | Event family | Scope source | |---|---| -| `agent/*`, including `agent/turn-stop` | The event's agent | +| `agent/*`, including `agent/turn-stop` | Event's agent | | `approval/request` | `ApprovalRequest.agent` | -| `tools/pre-execute`, `tools/execute`, `tools/post-execute`, `tools/result` | `ToolExecution.agent`, or no key for an agent-less call | +| Tool execution events | `ToolExecution.agent`, or no key for an agent-less call | | `system-prompt/assemble` | `AssembleContext.scope` | -| `session/created`, `session/disposed`, `session/event`, `session/flush` | The owner scope captured when the session enters the store | -| `subagent/start`, `subagent/end` | The delegating parent agent | +| Session lifecycle/events | Owner scope captured when the session enters the store | +| `subagent/start`, `subagent/end` | Delegating parent agent | -The observable rule is global plus matching, not global plus every scoped listener. This example drives a real tool execution so routing and notification use the same accepted `agent` subject: +Registry-membership events such as `tools/change`, `system-prompt/change`, and `SubagentProvider` added/removed events remain unfiltered because they describe shared registry state rather than one agent operation. ```js const seen = [] @@ -421,32 +330,15 @@ await ctx.tools.execute({ seen // ['global', 'A'] ``` -Approval requests cross an asynchronous answer boundary, so the service snapshots the accepted record synchronously. It preserves the exact agent and abort-signal identities but copies the scalar fields, captures the agent's session once, and uses that one snapshot for `approval/asked`, scoped dispatch, cancellation, policy, and `approval/decided`. Mutating the caller-owned record after `request()` returns therefore cannot split the audit pair or redirect the question to another agent's listeners. +Fused helpers keep values that must agree together. `agentEvents(context, agent)` uses one agent as the subject, scope key, and first event argument. `assembleContextFor(agent)` sets both prompt facts and the scope selector. The session store captures its carrier when a session enters because later appends and flushes may occur without the original agent context. -The dispatch rule can be read independently of Cordis internals: +#### The carrier preserves subject behavior -```text -dispatchScoped(subject, scopeKey, event, arguments): - carrier = proxy(subject, tag = scopeKey) +Function-style listeners receive the carrier as `this`, and agent listeners may call subject methods. The carrier is therefore a proxy that selects listeners while reading, writing, and invoking through the real subject. - for listener in listeners(event): - if listener has no scope tag or requests the explicit global bypass: - call listener with this = carrier - else if listener.scopeTag == scopeKey: - call listener with this = carrier - else: - skip listener -``` +The implementation uses a dedicated surrogate proxy target with an immutable composed-filter slot. It combines the subject context's existing `Context.filter` with the scope predicate instead of replacing it. Methods bind to the real subject; callable carriers preserve call and construct shape; descriptor queries normalize configurable flags as required by Proxy invariants; and definitions through the carrier require an explicitly configurable descriptor. Stable built-in references protect the composed filter from accidental `.call` replacement. -The real helpers fuse values that must agree. `agentEvents(context, agent)` uses the same agent as the subject, scope key, and first event argument. `assembleContextFor(agent)` similarly sets both the agent-facing field and the scope selector. The session store captures its carrier when a session enters because later appends and flushes may occur where the original agent context is no longer available. - -### The carrier behaves like the subject but has distinct identity - -Function-style listeners receive the carrier as `this`, and agent event APIs allow them to call subject methods. The carrier is therefore a JavaScript proxy that reads and writes through to the real subject and binds methods to it. - -Binding matters for classes with JavaScript private fields: a method called with the proxy itself as receiver would fail the runtime private-field identity check. The carrier therefore uses a dedicated surrogate proxy target with its own immutable composed-filter slot, while ordinary property access, writes, own-key visibility, methods, invocation, and construction delegate to the real subject; callable carriers also preserve whether the subject is constructable. - -A minimal JavaScript example shows why method binding is observable rather than a TypeScript detail: +Those mechanics preserve observable JavaScript behavior, including private-field method identity: ```js class Subject { @@ -455,24 +347,32 @@ class Subject { } const subject = new Subject() -new Proxy(subject, {}).increment() // TypeError: proxy lacks Subject's private identity +new Proxy(subject, {}).increment() // TypeError: proxy lacks Subject's private identity const carrier = scopeTarget(subject, subject) -carrier.increment() // works: method is bound to subject -carrier === subject // false: dispatch carrier has distinct identity +carrier.increment() // works: method is bound to subject +carrier === subject // false: carrier has distinct identity ``` -The composed filter is a listener-selection correctness boundary, not an ordinary exposed callback. It invokes a subject's pre-existing filter with stable references to the built-in `Reflect.apply` and `Function.prototype.call` operations, pins its own `.call` to that captured built-in, and freezes the callable. Code holding the subject or carrier therefore cannot accidentally replace either `.call` property and turn the scoped predicate into an always-admit predicate. Keeping the filter on the surrogate also means a filter property pinned on the subject before, during, or after carrier construction cannot trigger a Proxy invariant that silently replaces scope filtering with the subject's raw filter. +Together these constraints keep listener selection correct while preserving the subject behavior listeners expect. -The surrogate must remain extensible so its reported own-key view can follow the subject. For non-overlay properties owned by the subject, descriptor queries preserve values and flags except that `configurable` is reported as `true`, which is the only Proxy-safe description of a property the extensible surrogate does not itself own. For the same reason, defining a property through the carrier is supported only when the descriptor explicitly says `configurable: true`; an omitted or false flag is rejected before the subject is touched. The carrier is intentionally not identity-equal to the subject; event arguments carry the real object whenever identity matters. +The TypeScript-only `Scoped` marker requires a carrier at typed dispatch sites. Runtime marks and development invariants cover JavaScript, casts, and direct Cordis dispatch; they detect routing mistakes but do not confine hostile same-process code. -`Scoped` is a TypeScript-only marker that requires this carrier at declared scoped dispatch sites. It improves authoring but adds no runtime enforcement by itself, so runtime marks and development invariants check the same contract for JavaScript, casts, and hand-written dispatches. These checks detect routing mistakes; they do not confine a hostile in-process plugin. +## Lifecycle: compose privately, publish once, tear down in reverse -## Agent creation and teardown +Scope, session, registry entry, and driver form one transaction with two owners. Request fields are captured first; AgentLoop tracking and both identity reservations precede asynchronous work; the caller owns the prepared lifecycle before setup; publication proceeds in synchronous observable phases; and every teardown path reaches one reverse-order quiescence boundary. -An agent's scope, session, registry entry, and driver form one transaction with two ownership edges. The caller context owns the work it requested and receives the only consumer-facing teardown capability; the concrete `AgentLoop` provider is a structural co-owner because the live agent continues to use the provider's injected services. Either edge deactivates the transaction and converges on the same ordered, memoized quiescence boundary. Setup finishes before publication, and publication is synchronous and rollback-covered rather than magically atomic. +Two services split the public API from the implementation. `AgentRegistry`, reached as `ctx.agents`, stores live agents and is the front door for `create()` and `resume()`. Its registered `AgentFactory` is concretely implemented by `AgentLoop`, which constructs and drives agents using its own injected dependencies. The rest of this section calls that concrete co-owner the **AgentLoop factory**. -The public contract is simple: setup may await while both identities remain absent from their registries; fulfillment publishes the complete agent; disposal removes it again. +| Phase | Public state | Ownership fact | +|---|---|---| +| Reserve | IDs unavailable to competitors | AgentLoop tracking and exact reservations cover the next await | +| Prepare or load | Persistence data is loading, or session, scope, and driver exist privately | Resume's load sentinel covers persistence; the complete caller lifecycle covers setup | +| Setup | `setup(agent.ctx)` may await and register | Neither ID is published | +| Publish and start | Session, agent, and lifecycle notifications appear in order | Liveness is checked between observable phases | +| Dispose | Driver drains, registries detach, scope unwinds, IDs release | All owner paths join one completion promise | + +The public lifecycle is simple: ```js const setupGate = Promise.withResolvers() @@ -492,270 +392,333 @@ const creating = ctx.agents.create({ }, }) -ctx.agents.get(agentId) // undefined while setup is pending -ctx.sessions.get(sessionId) // undefined while setup is pending +ctx.agents.get(agentId) // undefined during setup +ctx.sessions.get(sessionId) // undefined during setup setupGate.resolve() const handle = await creating -ctx.agents.get(agentId) === handle.agent // true after publication -ctx.sessions.get(sessionId) === handle.agent.session // true after publication +ctx.agents.get(agentId) === handle.agent +ctx.sessions.get(sessionId) === handle.agent.session await handle.dispose() ctx.agents.get(agentId) // undefined after quiescent teardown ctx.sessions.get(sessionId) // undefined after quiescent teardown ``` -### Create and resume reserve identities before asynchronous work +### Reservations precede awaiting; lifecycle ownership precedes setup -Programmatic create and resume reserve both the agent ID and session ID before work that can await. Create prepares a fresh or seeded session; resume first loads and reconstructs the persisted session. Both paths then construct the agent, mint `agent.ctx`, and install the complete teardown skeleton before awaiting setup. +AgentLoop tracking and exact identity reservations precede the first await. Resume adds a caller sentinel across persistence loading; create and resume both establish the complete caller-owned lifecycle before invoking setup. -The registry treats the factory seam as an untrusted runtime boundary. A TypeScript interface checks source code but does not constrain the JavaScript object received at runtime, which may expose stateful getters. `setFactory()` therefore claims the single factory slot before reading method accessors, canonicalizes an already traced Cordis service to its concrete target, then captures that target plus the `createAgent` and `resume` callback identities once. A getter cannot reenter `setFactory()` and replace the outer factory while it is being accepted, later method replacement cannot redirect calls, and a service proxy cannot accumulate a second trace layer that breaks raw-identity state. On each call, the registry passes a caller-bound context carrying the accessing fiber and scope as `ownerCtx`, retraces the concrete service target exactly once through that context, and invokes the captured callback with both pieces. The explicit argument binds ownership; the traced receiver preserves the factory's dependency origin. +#### The prepared lifecycle is owned before setup callbacks -The factory first captures the requested IDs, setup callback, and caller-owned agent options. Seed events and session metadata take a stricter route than a preliminary clone: cloning can erase an exotic prototype before validation sees it, so the factory reads each reference once and hands it synchronously to the session store's reservation-bound prepare operation. That boundary rejects exotic shells, reads accepted metadata fields once, and recursively materializes each seed record in one pass. Resume applies the same rule to persistence output by capturing the loaded header fields once before reconstruction. The transaction therefore cannot move to different identities, storage routing, or lineage after an asynchronous boundary. +The caller context owns the work it requested and receives the consumer-facing `AgentHandle`. The AgentLoop factory is a structural co-owner because a live agent continues to depend on its injected services. Either owner can deactivate the transaction; both converge on the same lifecycle disposer. -Before setup can observe the new objects, their ownership-bearing public properties become stable runtime data slots rather than TypeScript-only `readonly` promises. The concrete agent pins its ID, accepted options, and session; the factory binds its scope context exactly once. The session pins its ID and detached, deep-frozen header. Registry detach closures likewise close over their accepted map keys instead of rereading public properties during teardown. A JavaScript assignment or stateful accessor therefore cannot split registry lookup, dispatch, persistence, and the driver into different identities. +| Owner mechanism | Covers | Retires when | +|---|---|---| +| Caller lifecycle sentinel | Caller-fiber loss from lifecycle preparation through live lifecycle | Shared lifecycle reaches quiescence | +| Resume load sentinel | Caller-fiber loss across persistence load and lifecycle handoff | Load rollback or the adopted lifecycle reaches quiescence | +| AgentLoop tracker | AgentLoop unload and structural dependency loss | Transaction and lifecycle settle | +| ID reservations | Competing agent/session insertion | Ordered teardown releases both IDs | -The session owns the accepted log as described in [the session-immutability RFC](2026-06-11-dev-invariants-over-deep-readonly.md). Seed and append paths materialize lossless JSON once, validate both the event envelope and the metadata that places message-producing events into derived model history, and deep-freeze the exact accepted event. `session.events` returns a frozen snapshot that never grows later. The store keeps append notification and scope-carrier state in store-owned private tables instead of caller-writable `Session` fields, so outside JavaScript cannot suppress or redirect `session/event` dispatch. +A **sentinel** is an owner-visible effect that follows work whose final disposer is not yet available. It adopts the exact reservation disposers immediately, then follows the complete lifecycle disposer once preparation establishes it. -Reservations prevent two concurrent factory transactions from composing different unpublished objects under the same public identities. Each capability's `release` is its exact Cordis effect disposer. Before asynchronous work, the owning sentinel adopts those functions by identity, removing them from the caller fiber's concurrent sibling list; teardown reaches them only after the transaction's driver, registry entries, session, and scope have quiesced. Explicit release covers pre-lifecycle failure and the ordered final step, while the owning fiber remains the backstop for an abandoned transaction. The concrete factory also tracks the whole create transaction before reservation and session preparation begin, and keeps that structural edge through reservation release. Provider unload first stops the factory from accepting work, then aborts or drains every tracked transaction before its dependency surface disappears. +Cordis must make construction owner-visible before setup can reenter teardown. An effect's cleanup wrapper enters its owner list before its setup body runs, a child fiber receives its parent-owned disposer before Cordis's child-plugin notification (`internal/plugin`) announces it, and a fiber already unloading rejects new effects after taking its cleanup snapshot. Teardown observers are contained independently so one callback cannot starve peers or interrupt cleanup. These are domain-neutral lifecycle rules; `dsh-scope` uses them by mounting a no-op plugin fiber as the ownership bucket for one scope. -The agent registry and session store recognize their own reserved keys: setup code that calls public reserve, prepare, create, register, or bare enter APIs with the same IDs fails. The session capability can prepare exactly one object, and publication succeeds only when both stores receive the factory-held exact capabilities; the session store additionally checks that the capability owns that exact prepared session. This closes the otherwise possible path in which setup publishes a substitute object under an ID that the factory merely tracked in a separate pending set, without letting a vanished owner wedge the ID forever. +#### Caller ownership and factory dependency lookup stay separate -Resume needs an ownership edge before an agent object exists. It reserves the identities, then installs a caller-liveness sentinel that adopts both exact reservation disposers before persistence I/O; a factory-tracked load transaction supplies the provider edge. If either owner wins, resume rejects, waits for the load transaction to settle, and only then releases both reservations; a backend promise that settles later cannot publish. After a successful load, `startOwned` synchronously returns both the complete lifecycle disposer and the asynchronous setup/publication result. Even a preparation failure is represented by a disposer-backed result, so the load sentinel can hand off to a real quiescence boundary instead of mistaking an async function's rejected promise for successful installation. The load tracker remains until the surrounding transaction settles, while the load and caller sentinels remain lifecycle-long followers, so no ownership or ID-release gap opens. Once the shared lifecycle quiesces, each sentinel first disarms its follower and then removes its owner-fiber effect; long-lived callers therefore do not retain completed agents, scopes, or reservation closures. +Factory delegation carries two contexts because ownership and dependency origin are different facts. `ownerCtx` is the caller-bound context whose fiber and optional scope own the requested lifecycle. The factory method receiver is the accepted factory traced through that access so the concrete service retains its own injected dependency view. -The load sentinel changes what it follows at handoff but remains an owner-visible boundary: +```text +callerCtx.agents.create(options) + ownerCtx = context carrying callerCtx's fiber and scope + factoryThis = concrete accepted factory traced through ownerCtx + Reflect.apply(capturedCreateAgent, factoryThis, [ownerCtx, options]) +``` + +`setFactory()` captures the concrete target and its `createAgent` and `resume` callbacks once. It canonicalizes an already traced service before retracing, avoiding a second proxy layer that would break raw-identity state. Plain factory objects receive the explicit `ownerCtx` without depending on Cordis tracing. + +#### Create and resume reserve identities before awaiting + +Programmatic create and resume reserve both agent and session IDs before any operation can await. Create prepares a new or seeded session; resume loads persisted data while a caller sentinel and AgentLoop load tracker already own the interval in which no `Agent` object exists. + +Reservations are capabilities, not advisory sets. Setup code cannot reserve, prepare, create, register, or enter a substitute under the same IDs. A session reservation prepares at most one exact object, and publication requires the matching factory-held capabilities. A failed or abandoned transaction therefore cannot publish a substitute or wedge an ID indefinitely. + +Resume transfers ownership rather than opening a gap: ```text resume(ownerCtx, request): - snapshot request ids, options, and setup callback - reservations = reserve agentId in AgentRegistry and sessionId in SessionStore - sentinel = ownerCtx.effect( - onDispose => abort and await load settlement before reservation release, - adopt exact reservation disposers) - loadTransaction = factory.track(onDispose => signal deactivated and await settlement) + snapshot request identity, options, and setup callback + reserve agentId and sessionId + install caller sentinel adopting both reservation disposers + track load under AgentLoop - try: - persisted = await firstOf(persistence.load(sessionId), deactivated) - session = reservations.session.prepare(reconstruct persisted data) - - # This synchronous call returns a lifecycle boundary even when preparation fails. - starting = startOwned(ownerCtx, agentId, session, options, reservations, setup) - sentinel.follow(starting.dispose) - return await starting.result - finally: - release directly only if no lifecycle boundary was established - settle and untrack the load transaction + persisted = await firstOf(persistence.load(sessionId), deactivated) + session = sessionReservation.prepare(reconstruct persisted data) + starting = startOwned(ownerCtx, session, reservations, setup) + caller sentinel follows starting.dispose + return await starting.result ``` -If deactivation wins, the load promise may continue inside the backend, but it has no path back to publication. +If deactivation wins, a backend load may still settle internally but has no path back to publication. Preparation failure still returns a rollback-backed lifecycle result, so both owners can wait for actual cleanup instead of mistaking a rejected async result for successful installation. ### Setup composes an unpublished world -The optional `setup(agentCtx)` callback receives the new agent context and may synchronously register contributions or await child-plugin activation. During setup, neither the session nor agent is visible through its global registry, but `agentCtx.agent` exposes the unpublished agent to the code composing it. +`setup(agentCtx)` may register tools, prompt state, restrictions, listeners, protections, or child plugins and may await their activation. The new agent is available as `agentCtx.agent`, but neither agent nor session is visible in its global registry. -Setup may register scoped tools, prompt sections, variables, restrictions, listeners, protections, or child plugins. If it throws or rejects, the scope unwinds without publishing either object, and the reserved IDs become reusable. If either the caller owner or concrete factory unloads during an await, the preinstalled teardown skeleton marks the transaction inactive; late setup completion cannot publish. +The complete rollback skeleton exists before setup runs. If setup throws, rejects, or loses either owner, the scope and prepared resources unwind and the IDs become reusable. After setup settles, a microtask checkpoint and liveness checks let a same-turn owner unload win before publication. -Both structural edges exist before driver preparation or scope minting. The provider uses a tracked placeholder, while the caller gets a lifecycle-long sentinel that adopts the reservation effects and resolves to the same memoized lifecycle disposer. If `internal/plugin` reentrantly unloads either owner while the scope fiber is being constructed, Cordis has already attached the child disposer to its parent and the sentinel waits until preparation publishes either the complete lifecycle or a rollback disposer. A failure halfway through preparation therefore leaves both owners with a quiescence boundary for the prepared driver, minted scope, and reservations. - -The factory checks liveness before invoking arbitrary setup. After setup settles, it yields one microtask checkpoint and checks the lifecycle flag, factory state, caller-fiber state, and the owner context's associated agent state again. Cordis begins owner unload synchronously but may run nested effect disposers in the next microtask; the explicit checks and checkpoint let a same-turn unload win instead of allowing an immediately fulfilled setup to publish an already-doomed agent. - -Setup composes but does not drive. The concrete agent rejects `send`, `steer`, `inject`, and `cancel` until publication reaches the session-start boundary, keeps its inbox in a JavaScript native-private field, and allows only one concrete driver to claim a session. Driver startup is absent from the package surface: the package exports neither its loop/inbox internals nor source subpaths, and only instance-bound controls held by the factory can enable and start the driver. JavaScript or a type cast therefore cannot bypass the lock by calling a public `start()` or writing directly into the queue. These boundaries prevent a turn from opening before lifecycle listeners know the session exists. - -The common create/resume tail makes the unpublished boundary explicit: +Setup composes but cannot drive. `send`, `steer`, `inject`, and `cancel` reject until publication reaches the session-start boundary. The driver lock and inbox use runtime-private state, and only factory-held controls enable and start the loop; JavaScript casts cannot call a public start method or write directly into the queue. ```text startOwned(ownerCtx, snapshot, preparedSession): - try: - world = prepareLifecycle(ownerCtx, snapshot, preparedSession) - # Factory placeholder, lifecycle-long caller sentinel, reservation adoption, - # and complete rollback/teardown skeleton all exist before the first await. - catch preparationError with rollbackBoundary: - return { dispose: rollbackBoundary, - result: await rollbackBoundary then reject original error } + world = prepareLifecycleWithCompleteRollback(ownerCtx, snapshot, preparedSession) result = async: - require world.lifecycleActive + require world active await firstOf(snapshot.setup(world.agent.ctx), world.deactivated) await oneMicrotask() - require world.lifecycleActive - require world.factoryActive - require world.ownerFiberActive - require world.ownerAgentNotDisposed - + require caller, factory, owner fiber, and owner agent still active world.publish(snapshot.source) return handle(world.agent, world.dispose) - catch error: - await world.dispose() - throw error - return { dispose: world.dispose, result } + on any error: + await world.dispose() + rethrow ``` -`setup` can await arbitrary plugin activation, but every exit still passes through the already-installed disposer. +### Publication is ordered, observable, and rollback-covered -### Publication is ordered and rollback-covered - -After setup succeeds, the factory publishes in one synchronous sequence with no `await` between steps. Each registry has already claimed its ID across every caller-code boundary needed to construct a stable entry: the agent registry pins the accepted ID and captures one lifecycle carrier while its claim is held, and the session store holds the same kind of claim while evaluating its filter and carrier. A Proxy trap or filter getter can therefore neither overwrite a reentrant same-ID entry nor create a stale detach capability that later deletes another object. Liveness checkpoints then divide publication into three notification phases, and an outer publication barrier keeps teardown from revoking either registry entry or the scope while one of those phases is on the stack: +Publication is one synchronous sequence with liveness checks between three observable notification phases. Both registry entries exist before the first listener runs, but driving stays locked until immediately before `agent/session-start`. 1. Enter the session store and capture its scope carrier. 2. Enter the agent registry without announcing it. -3. Recheck caller and factory liveness; entering either registry may have evaluated a caller-owned getter that began teardown. +3. Recheck caller and factory liveness. 4. Emit `session/created`. -5. Recheck liveness; if teardown began, skip the agent announcement and roll back. +5. Recheck liveness. 6. Emit `agent/created`. -7. Recheck liveness; if teardown began, keep driving locked and roll back. +7. Recheck liveness. 8. Enable driving. 9. Emit `agent/session-start`. -10. Recheck liveness; if teardown began, roll back without starting the driver. -11. Start the driver loop. - -The implementation keeps publication synchronous and leaves rollback to the surrounding owned transaction: +10. Recheck liveness. +11. Start the driver. ```text publish(world): world.beginSynchronousPublication() try: - world.detachSession = world.agent.ctx.sessions.enter(world.session, world.sessionReservation) - world.detachAgent = app.agents.enter(world.agent, world.agentReservation) - require world.callerAndFactoryActive - app.sessions.announce(world.session) - require world.callerAndFactoryActive - app.agents.announce(world.agent) - require world.callerAndFactoryActive + world.detachSession = sessions.enter(world.session, sessionReservation) + world.detachAgent = agents.enter(world.agent, agentReservation) + require callerAndFactoryActive + sessions.announce(world.session) + require callerAndFactoryActive + agents.announce(world.agent) + require callerAndFactoryActive world.driver.enableDrivingVerbs() emitNonVetoing(agent/session-start) - require world.callerAndFactoryActive + require callerAndFactoryActive world.driver.start() finally: world.endSynchronousPublication() ``` -Both registry entries exist before the first creation listener runs, and setup-installed listeners receive every announcement that publication reaches. Driving opens immediately before `agent/session-start`, so that event remains the first supported place for a listener to inject or queue startup work. A synchronous teardown request from any notification marks the lifecycle inactive immediately, which makes the next checkpoint abort, but actual loop, registry, session, and scope cleanup waits until the current synchronous notification phase and publication call stack unwind. Teardown itself therefore cannot make a later listener that still runs observe a different world; teardown from `session/created` prevents `agent/created`, teardown from `agent/created` prevents session start, and teardown from `agent/session-start` prevents the driver from starting. +#### Creation is paired, not atomic -The sequence is not described as atomic because observers run between its steps. If a `session/created` or `agent/created` listener throws synchronously, the transaction rolls the registry entries and scope back, but effects already performed by an earlier listener cannot be retracted. Each store therefore marks its announcement as begun before invoking creation listeners and rejects a repeat or reentrant announcement before dispatch. Rollback emits `session/disposed` or `agent/disposed` exactly once for every corresponding creation announcement that began, including a partial emit in which an early listener observed creation before a later listener threw. An object entered but never announced has no disposal notification because no observer was told it existed. +Observers run between publication steps, so the sequence is not described as atomic. Effects already performed by an earlier listener cannot be retracted if a later listener throws. Instead, each registry marks a creation announcement as begun before dispatch and emits exactly one matching disposal edge during rollback. An entered object that was never announced has no disposal notification because no observer was told it existed. -Each registry also protects ordering inside its own creation phase. If a listener uses an advanced detach capability while `session/created` or `agent/created` is dispatching, removal and the paired disposal edge are deferred until that dispatch unwinds. The agent's creation and disposal edges reuse the carrier captured before commit instead of rebuilding it from a mutable filter getter. A detach request therefore cannot make a later listener observe `created` after `disposed`, find the just-created entry missing, or trigger disposal while creation is still constructing its receiver. Exact-object guards on both detach paths are the final defense against a stale capability deleting a later same-ID entry. The factory's outer publication barrier is the cross-registry complement: caller or provider teardown cannot remove the other entry or unwind `agent.ctx` while the current phase is still running. +A detach requested during `session/created` or `agent/created` is deferred until that dispatch unwinds. Stable captured carriers and exact-object guards prevent a later listener from observing `disposed` before `created` or a stale detach from deleting a replacement with the same ID. The outer publication barrier likewise prevents caller or AgentLoop teardown from removing the other registry entry or unwinding `agent.ctx` while an announcement remains on the stack. -Creation notification preserves that synchronous veto while also defending against JavaScript's asynchronous callback shape. A listener may return a promise even though the event type returns `void`; the dispatcher does not await it because publication has no asynchronous gap, but it observes and logs a later rejection. Such a rejection is too late to roll back, does not become unhandled, and does not starve the listeners invoked after that callback. +Creation listener synchronous throws remain vetoes. Returned promise rejections are observed and logged but not awaited: publication has no asynchronous gap in which such a result could roll back safely. Disposal notifications and `agent/session-start` are non-vetoing and independently contain both synchronous throws and returned-promise rejections so one listener cannot block cleanup or later observers. -The disposal notifications and `agent/session-start` do not treat return values or listener failures as vetoes. Their dispatchers invoke every listener synchronously and independently; they log and contain both a synchronous throw and a rejection from a returned promise. Completion or rejection of a returned promise is observed but not awaited, so it cannot delay rollback or teardown, veto driver startup, or starve a later listener. The callback's synchronous prefix remains ordinary code: if it holds and disposes a structural ownership edge, the next publication liveness check deliberately aborts startup. +### Teardown stops work before revoking registrations -### Teardown stops work before revoking its world +Every owner path reaches one memoized reverse-order transaction. It marks the lifecycle inactive, waits for an in-progress synchronous publication phase, stops the driver through actual exit and final durability work, detaches the agent and session, unwinds the scope, and releases IDs last. -Every owner path reaches the same memoized reverse order: the consumer handle, caller-fiber disposal, and structural factory-provider unload first deactivate the lifecycle; wait for an in-progress synchronous publication phase; stop the loop and await its actual exit plus every agent-started durability checkpoint; remove the agent from the registry; detach the session; unwind the scope; and only then release both IDs. Final turn events, the turn-ending flush, and any outstanding idle-injection flush therefore settle while the session and scoped listeners are still live, and a replacement cannot reuse either identity while old scoped cleanup remains in flight. +Final turn events, the turn-ending flush, and any outstanding session flush started while the agent was idle therefore run while the session and scoped listeners still exist. `agent/disposed` observes an already quiescent and unregistered concrete agent while its session remains live; `session/disposed` follows after event feed detachment and store removal. Both use the stable carrier captured for their matching creation edge. ```text disposeOwnedAgent(world): mark world inactive await world.synchronousPublicationIfRunning() - await world.stopDriver() # waits for loop exit and all agent-started flushes - world.detachAgent() # leaves registry; emits agent/disposed if announced - world.detachSession() # stops event feed, leaves store; emits session/disposed if announced + await world.stopDriver() # loop exit plus agent-started flushes + world.detachAgent() + world.detachSession() await world.scope.dispose() world.releaseSessionReservation() world.releaseAgentReservation() ``` -The actual Cordis generator yields these disposers in reverse so its last-in-first-out teardown executes in the order shown. +`AgentHandle.dispose()` gives repeated and racing consumers the same completion promise. The lifecycle-long caller sentinel follows that promise even when handle disposal wins first, while the AgentLoop ledger independently stops new transactions and waits for every structurally dependent agent before the service disappears. -For the concrete AgentLoop transaction, `agent/disposed` runs after the driver is quiescent and the agent has left the registry; the session is still live during that notification. The public AgentRegistry alone promises only exact removal, because a custom registered `Agent` owns any stronger driver contract itself. `session/disposed` follows after append notification has been detached and the session has left its store. The scope is still live when each disposal listener is selected and invoked, although returned asynchronous work is observed rather than awaited. Both notifications use the stable scope key and delivery rule captured for their creation partners and occur exactly once only when those creation announcements began. +AgentLoop co-ownership follows dependency shape, not a blanket “creator owns every returned value” rule. An AgentLoop-created agent continues to depend on the loop's services, so AgentLoop unload stops it. -`AgentHandle.dispose()` is memoized so repeated consumer calls await the same full transaction. The lifecycle-long caller sentinel independently follows that memoized promise, so handle-first teardown cannot make a racing caller-fiber unload observe Cordis's inert second raw-disposer call and return early. Once the transaction reaches its final quiescent stage, retirement disarms and removes the sentinel before settling that shared promise. `Scope.dispose()` provides the corresponding shared boundary for direct scope disposal and raw-disposer races. The provider's ownership ledger is internal rather than another public handle: it stops accepting new transactions, invokes every tracked disposer independently, and waits for all of them before the AgentLoop service surface disappears. +## Boundary ownership: accept once and own the accepted value -Provider co-ownership is specific to resources that remain structurally dependent on their provider. An AgentLoop-created agent continues to resolve the loop's injected services, so loop unload must stop it. A worker workflow run instead captures its holder-bound `SubagentService` handle synchronously at `start()` and stores that independent dependency on the run; unloading `WorkerWorkflowEngine` removes the ability to start new runs but does not revoke an already returned run or prevent its later worker message from starting a child. The two lifetimes differ by dependency shape, not by a blanket rule that every service must own every value it creates. +Acceptance-sensitive boundaries that cross asynchronous, reentrant, model-visible, or durable-log code read caller-owned fields once and retain only owner-controlled identities or snapshots. This rule is independent of TypeScript: `readonly` annotations vanish at runtime, and JavaScript accessors can return a different value on every read. -Parent-owned subagents use explicit ownership rather than registration inheritance. The driver creates one run-owner fiber under `parent.ctx` and invokes the child factory through that fiber, so lifecycle ownership exists before setup or publication begins; disposing a parent reaches its descendants even if a delegating tool never reaches its own `finally`. The child still receives a newly minted scope and resolves only global plus child-scoped registrations. - -## Owner-final policy boundaries - -Cooperative waterfalls remain the general extension mechanism, but an invariant belongs after the last transformable point. The design adds four narrow boundaries, each owned by the service that can define what “final” means. - -### Prompt protection restores named canonical contributions - -`systemPrompt.protect({ sections, tools })` declares that selected names must match the canonical registry/provider assembly after the complete `system-prompt/assemble` waterfall. It reads each caller array once before deduplication, so the names checked for an empty protection are the names actually installed. Protections registered globally and for the current scope compose by set union, so callback order cannot weaken them. Protection finalizes a returned assembly rather than recovering from listener failure; if the waterfall throws, assembly still fails. - -For each protected name, the service restores the canonical presence and definition. If the canonical assembly omitted the name, protection removes a listener-fabricated entry; this makes mode-dependent absence enforceable as well as presence. Tool providers receive the same coherence treatment: assembly reads `schemas`, optional `knownNames`, and every schema field once, detaches that record, and uses its captured names for both `toolOrder` validation and the model-visible collection. A stateful provider therefore cannot validate a phantom name while showing a different tool. - -A global section protection also reserves the registry name against scoped shadowing. Registering a scoped section under an already protected global name throws, and adding global protection throws if any scoped shadow already exists. Section registration copies `name`, `order`, and the text value or callback before the check and stores that record, so later mutation of the caller's object cannot rename a safe section into a reserved one. This check must happen before assembly: otherwise the ordinary scoped-over-global merge would make the shadow itself look canonical, leaving post-waterfall restoration with the wrong owner's value. Tool-schema protection does not impose a blanket schema-name reservation because providers are additive and may deliberately contribute unrelated executable schemas. - -Restoration is intentionally not a whole-assembly reset. The service first removes protected names from the waterfall result, then reinserts protected canonical entries in their canonical order immediately before the first surviving later unprotected canonical neighbor, or at the end when no such neighbor survives. Unprotected entries keep the ordering and definitions chosen by the waterfall. This anchor rule preserves the protected contribution's meaningful local placement without claiming that protection restores every global relative position after arbitrary listener reordering. - -Only the restoration inputs are detached before dispatch: the canonical section array when section protection is active and the canonical tool array when tool protection is active. The waterfall receives the original mutable assembly, not a clone, and variables and other merge-extensible fields remain entirely under ordinary waterfall semantics. +The shared shape distinguishes identity-bearing references from data. Agent objects and abort signals are retained by identity after one read. Boundaries whose contract requires lossless JSON—such as session events and subagent payloads—validate and materialize it in one traversal; other boundaries use their own owned representation, such as `structuredClone` for agent options. Scalars and callbacks are captured once, then each boundary applies the validation promised by its API before downstream use. ```text -registerSection(input, scope): - stored = copy(input.name, input.order, input.text) - if scope exists and stored.name is globally protected: - fail before registration - sectionLayer(scope).add(stored) - -assemble(context): - assembly = assemble registries for context.scope - canonicalSections = active section protection ? clone(assembly.sections) : absent - canonicalTools = active tool protection ? clone(assembly.tools) : absent - transformed = await systemPromptAssembleWaterfall(assembly) - - for each protected name in the corresponding canonical array: - remove every transformed entry with that name - if the canonical array contains the name: - if a later unprotected canonical neighbor survived: - insert the canonical entry before that neighbor - else: - append the canonical entry - - return transformed +accept(input): + read every relevant top-level field exactly once + retain identity-bearing references without rereading them + validate acceptance-time fields from those captures + copy or pin data in the representation owned by this boundary + bind accepted callbacks once when method receiver state is intentional + expose only owner-controlled identities, frozen records, or detached results ``` -This algorithm restores a protected entry's definition, presence or absence, and useful local anchor without erasing unrelated listener output. +Capture does not imply uniform eager callback type-checking. Agent `setup` is captured once and any invocation failure enters rollback; a tool guard is likewise captured, and an invalid cast becomes a normalized execution error. The invariant is that later work never rereads caller fields to choose a different value. -Code Mode uses global protection for the `tools:sdk` section and reserved `run_code` schema. Structured output adds scoped protection for its instruction and capture schema. These are named guarantees: unrelated listeners may still contribute unrelated sections or tools. +| Boundary | Identity retained | Data detached or pinned | +|---|---|---| +| Tool and `SubagentProvider` registration | Original callback receiver | Name, flags, schemas, scalar config | +| Agent create/resume | Caller context, setup callback | IDs, options, session metadata and seed | +| Approval request | Agent and abort signal | Tool name, call ID, and reason | +| Tool execution | Agent, signal, registry-minted parent token | Call identity and arguments | +| Session append/load | Session identity | Header and event envelopes | +| Subagent start/result | Parent and signal | Prompt, filters, schema, options, result | -### Tool executions have stable identity +Before agent setup can run, the concrete agent pins its accepted ID, options, and session and binds `ctx` once. Registry detach closures likewise close over their accepted keys instead of rereading mutable public fields. -`ctx.tools.execute(input)` accepts a caller-owned `ToolExecutionInput` and snapshots it into a distinct pipeline-owned `ToolExecution`. It reads `callId` and `name` once and requires each value to be a string before treating the pair as trustworthy correlation identity. A throwing accessor or non-string value rejects before `tools/result`, because even an error result could not carry a valid identity. After that boundary, the registry reads every other top-level caller field once, and any later accessor or validation failure becomes one normalized final error notification built from the already accepted strings and captured optional fields. +A stateful getter shows why validation and ownership must use the same capture: -The registry materializes `arguments` in one lossless-JSON traversal and deep-freezes the result, so parent-token validation, scope routing, policy, dispatch, and final observation receive exactly the value that passed validation. A cloneable but mutable exotic such as `Map` or a class instance is rejected before policy rather than smuggled through an apparently frozen wrapper. +```js +let reads = 0 +const input = { + get name() { + reads += 1 + return reads === 1 ? 'safe_tool' : 'different_tool' + }, +} -The registry assigns each pipeline trip a frozen, property-free `ToolExecutionToken`; callers cannot choose that token. The execution is identity-stable, not fully immutable, while the pipeline runs: its `token`, `callId`, `name`, `agent`, optional opaque `parent` token, and detached `arguments` are non-writable and non-configurable from the first policy listener onward. `signal` is the only operational field; an around-dispatch wrapper may add, replace, or remove it. The registry freezes the complete execution before outcome observation. +// Wrong: validation and storage observe different values. +validateName(input.name) +storeName(input.name) -Stable identity prevents a listener from changing which tool or scope the pipeline accepted after policy ran. It also gives commit-style observers a safe `WeakMap` key even when an adapter reuses a model call ID. +// Right: one accepted value drives both. +reads = 0 +const acceptedName = input.name +validateName(acceptedName) +storeName(acceptedName) +``` -For a nested transport dispatch, `parent` carries only the enclosing execution's opaque token rather than its live object. Code Mode sets an SDK sub-call's `parent` to the outer `run_code` execution's `token`, so an observer can correlate the two outcomes without receiving a reference that could mutate the still-running outer wrapper. +### Registered definitions are frozen snapshots -The input-to-execution conversion is intentionally one-way: +Tool registration creates the stored definition identity once; changes occur through explicit unregister/register effects rather than mutation of a caller-retained object. Parameters are materialized in one traversal, callbacks bind once to the accepted definition receiver, and the stored record is deep-frozen. + +The first-party `defineTool()` helper applies the same boundary before registration. It captures each option once, materializes the authoring `SchemaSpec`, and derives both the wire schema and later execution/presentation validation from that owned spec. + +```text +defineTool(options): + accepted = read each option exactly once + parameterSpec = snapshotLosslessJson(accepted.parameters) + wireSchema = snapshotLosslessJson(convertToJsonSchema(parameterSpec)) + build execute and presentation validation over parameterSpec + +registerTool(context, definition): + accepted = read each definition field exactly once + stored = deepFreeze({ + accepted name, description, timeout, + parameters: snapshotLosslessJson(accepted.parameters), + execute: bind accepted.execute to definition, + presentation callbacks: bind accepted callbacks when present + }) + layerFor(scopeOf(context)).add(stored.name, stored) +``` + +`get()` and `visible()` return the frozen stored definitions; `schemas()` returns detached projections. Replacing `definition.execute` after registration has no effect, while a callback can deliberately read live state from its closure or original receiver. + +Factory and backend registration use different reentrancy orderings around the same ownership rule. `AgentFactory` registration claims its single slot before reading callback accessors. `SubagentProvider` registration first snapshots the provider fields, then its effect checks and enters the accepted name. Both capture callback identity and intentional receiver state once, and hot-reload cleanup closes over the accepted slot or key instead of rereading a mutable public property. + +### Durable session data belongs to the session + +The session pins its ID and detached, deep-frozen header. Seed and append paths materialize lossless JSON once, validate the event envelope and message-history metadata against that owned record, and deep-freeze the exact accepted event. `session.events` returns a frozen snapshot that never grows later. + +The store keeps append observers, accepted registry IDs, and scope carriers in private owner state rather than caller-writable fields. Outside JavaScript therefore cannot rename a stored session, redirect `session/event`, or mutate an earlier snapshot into newer history. + +Approval requests follow the same async boundary at smaller scale: one capture preserves exact agent/signal identities, copies scalar fields, captures the session once, and drives `approval/asked`, scoped policy, cancellation, and `approval/decided` from that record. + +### Tool execution has pipeline-owned identity + +`ctx.tools.execute(input)` turns caller-owned input into one pipeline-owned `ToolExecution`. It first reads `callId` and `name` once and requires strings; a failure there rejects because even an error result would lack trustworthy correlation identity. Once those strings are accepted, later input failures can become normal final error outcomes. + +Arguments are materialized once and deep-frozen. The registry assigns a frozen property-free `ToolExecutionToken`; callers cannot choose it. `token`, `callId`, `name`, `arguments`, `agent`, and optional opaque `parent` token become non-writable and non-configurable before policy. `signal` is the only operational field an around-dispatch wrapper may replace or remove. ```text prepareExecution(input): callId = read input.callId exactly once name = read input.name exactly once - require callId and name are strings - # A failure above rejects: no trustworthy correlation identity exists. + require both are strings accepted = read arguments, agent, parent, and signal exactly once - require accepted.parent is absent or a registry-minted token - detachedArguments = snapshotLosslessJson(accepted.arguments) + require parent is absent or a registry-minted token + arguments = deepFreeze(snapshotLosslessJson(accepted.arguments)) execution = { token: new frozen property-free object, - callId, - name, - arguments: deepFreeze(detachedArguments), + callId, name, arguments, agent: accepted.agent, parent: accepted.parent, signal: accepted.signal } - - make every field except signal non-writable and non-configurable + protect every field except signal return execution ``` -### Tool guards can deny but never re-allow +Stable execution identity prevents middleware from changing which tool or scope policy accepted. It also gives structured-output commit a safe `WeakMap` key when an adapter reuses a string call ID. Code Mode correlates an SDK sub-call with its enclosing `run_code` using only the outer execution's opaque token, never a mutable reference to the live outer object. -`ctx.tools.guard()` installs a synchronous global or scope-specific guard after the extensible `tools/pre-execute` waterfall and before dispatch. A guard returns a denial reason or `undefined`; it has no allow result. +Result boundaries apply the same ownership rule. Each transform returns data that is captured field-by-field, validated, materialized, and ultimately deep-frozen for final observers; malformed outcomes normalize to JSON-safe error results rather than reaching the session log as apparent success. -This one-way result makes the boundary monotonic. Pre-execution hooks can still compose ordinary allow, deny, and ask decisions; an ask resolves through the optional `ctx.approval` seam, where only `allowed-once` becomes allow and an absent channel or any non-grant becomes deny before guards run. No listener ordering can convert a guard denial back into dispatched work. A denied call still continues through result transformation and final observation as an error outcome. +## Owner-final policy: four narrow boundaries -The two APIs have deliberately different strength. A waterfall listener may return an allow decision, but the later guard has no corresponding allow result: +Waterfalls remain the ordinary extension mechanism; each of four protocol invariants runs after the last extension point capable of violating that specific invariant. Each owner-final API has the weakest one-way power that can preserve its guarantee. + +Here **canonical** means the named registry or tool-schema-provider output assembled before the waterfall—not “all output the service approves.” Protection restores only the names its owner declares. + +| Invariant | Cooperative extension point | Owner-final boundary | Guarantee | +|---|---|---|---| +| Named prompt/tool contribution | `system-prompt/assemble` waterfall | `systemPrompt.protect()` finalization | Canonical presence, absence, definition, and local anchor survive | +| Non-overridable tool denial | `tools/pre-execute` allow/deny/ask waterfall | Synchronous `tools.guard()` | A denial cannot become allow | +| Authoritative live outcome | Execute and post-execute waterfalls | Awaited `tools/result` notification | Observers receive one immutable final result | +| Terminal protocol completion | Continuation waterfall and pending steering | Serial `agent/turn-stop` | No middleware or late steering creates another step | + +### Prompt protection restores named canonical contributions + +`systemPrompt.protect({ sections, tools })` snapshots the requested names and restores their canonical registry or tool-schema-provider output after the complete assembly waterfall. Global and matching scoped protections compose by set union; a waterfall failure still fails assembly rather than triggering recovery. + +Protection covers both presence and absence. If the canonical assembly omits a protected name, finalization removes a listener-fabricated entry; this is how Code Mode keeps a native schema absent while preserving the SDK/transport form. Tool providers likewise expose one captured coherent record for schemas and optional known names, so a stateful getter cannot validate one name and display another. + +#### Global section protection reserves its name + +A globally protected section name cannot be shadowed by a scoped section. Scoped registration under an already protected name fails, and adding protection fails if a scoped shadow already exists. This check occurs before assembly because scoped-over-global merge would otherwise make the shadow itself appear canonical. + +Tool-schema protection does not create a blanket reservation for unrelated schema names. Providers are additive and may deliberately contribute other executable schemas; the owner-final guarantee covers only the named canonical contribution. + +#### Restoration preserves a useful local anchor + +Protection does not reset the whole assembly. It removes protected names from the waterfall result and reinserts each canonical entry before the first surviving later unprotected canonical neighbor, or at the end if none survives. Unprotected entries retain the order and definitions chosen by middleware. + +```text +assemble(context): + assembly = assemble registries for context.scope + canonical = snapshot protected section/tool inputs + transformed = await systemPromptAssembleWaterfall(assembly) + + for each protected canonical name: + remove every transformed entry with that name + if canonical includes the name: + insert before first surviving later canonical neighbor, else append + + return transformed +``` + +Code Mode globally protects `tools:sdk` and reserved `run_code`; structured output adds scoped protection for its instruction and capture schema. + +### Tool guards deny monotonically + +`ctx.tools.guard()` installs a global or scoped synchronous check after the complete `tools/pre-execute` waterfall and before dispatch. A guard returns a denial reason or `undefined`; it has no allow result. + +Pre-execute hooks still compose ordinary allow, deny, and ask decisions. An ask resolves through the optional approval service, where only `allowed-once` becomes allow and absence or any non-grant becomes deny. Guards run afterward, so listener order cannot convert their denial into dispatched work. ```js agent.ctx.on( @@ -771,72 +734,56 @@ agent.ctx.tools.guard(execution => ) ``` -Even a later prepended allow listener cannot bypass this guard because the registry evaluates guards after the complete waterfall. +Even a later prepended allow listener cannot bypass the guard. A denied call still becomes an error outcome that flows through result transformation and final observation. -### `tools/result` observes the authoritative live outcome +### `tools/result` observes the final live outcome -The complete live pipeline is `tools/pre-execute` → monotonic guards → `tools/execute` → `tools/post-execute` → `tools/result`. The first three named events are transformable waterfalls; `tools/result` is an awaited, observe-only notification after all transforms and the registry's outer error normalization. At each untrusted result boundary, the registry captures every top-level field once and materializes the complete authoritative outcome as detached lossless JSON. Immediately before observation it materializes that owned outcome again and deep-freezes the shared listener snapshot. An invalid tool or listener result becomes a normal JSON-safe `isError` outcome instead of reaching observers as apparent success and failing later at the session log. +The live pipeline is `tools/pre-execute` → guards → `tools/execute` → `tools/post-execute` → `tools/result`. The first, execute, and post stages are transformable waterfalls; `tools/result` is an awaited observe-only notification after every transform and outer error normalization. -Every `tools/result` listener receives the same frozen execution and deep-frozen result snapshot. Listener failures are contained independently, so they cannot change the caller's result or starve peer observers. Scope filtering derives from `execution.agent`. +Every observer receives the same frozen execution and a separate deep-frozen snapshot of the owned result returned to the caller. Listener failures are contained independently, so they cannot change that returned result or starve peers. Routing uses `execution.agent`. -`tools/result` is not the durable session event `tool/result`. The live notification belongs to the registry and also fires for direct programmatic executions; the agent loop subsequently appends `tool/result` to the session log for replay, UI reconstruction, and model history. A policy that needs the final in-process verdict uses the former, while a consumer that needs persisted transcript state uses the latter. - -The entire registry method reads like one execution-decision pipeline: +`tools/result` is not the durable `tool/result` session event. The live notification also fires for direct programmatic executions and is the source of truth for in-process commit logic. The agent loop later appends the durable event for replay, UI reconstruction, and model history. ```text execute(input): - callId = read input.callId exactly once - name = read input.name exactly once - require callId and name are strings + accept trustworthy callId and name + try to prepare pipeline-owned execution + on preparation failure: + create an identity-bearing error shell + ownedResult = owned error result + freeze execution + observerResult = deepFreeze(snapshotLosslessJson(ownedResult)) + await every tools/result observer independently with observerResult + return ownedResult - try: - execution = prepareExecutionFromTrustedIdentity(input, callId, name) - catch invalidInput: - execution = frozen identity shell with arguments = undefined - result = errorResult(invalidInput) - await tools/result observers with independent failure containment - return result + gate = await tools/pre-execute(execution) + resolve ask through approval when needed + denial = policy denial or first guard denial - try: - gate = await tools/pre-execute(execution) - decision = gate - if gate asks: - decision = await resolveWithApproval(gate, execution.agent) - # approval absence and every non-grant resolve to deny + if denied: + result = errorResult(denial) + else: + result = await tools/execute(execution, dispatchRegisteredTool) - if decision allows: - denial = firstRegisteredGuardDenial(execution) - else: - denial = decision.denial - - if denial exists: - result = errorResult(denial) - else: - result = await tools/execute(execution, next = dispatchRegisteredTool) - result = requireValidExecutionResult(result) - - result = await tools/post-execute(execution, result) - result = snapshotLosslessJson(result) - catch pipelineFailure: - result = errorResult(pipelineFailure) - - freeze(execution) - frozenResult = deepFreeze(snapshotLosslessJson(result)) - await every tools/result observer independently, containing each failure - return result + result = await tools/post-execute(execution, result) + ownedResult = normalize into owned lossless JSON + freeze execution + observerResult = deepFreeze(snapshotLosslessJson(ownedResult)) + await every tools/result observer independently with observerResult + return ownedResult ``` -Waterfalls can transform only at their named stages. Guards can only deny, and the final observers can only observe. +Waterfalls transform only at their named stages; guards only deny; final observers only observe. -### `agent/turn-stop` makes a composed continuation terminal +### `agent/turn-stop` makes continuation terminal -Steering is input injected into an already running turn for the next model step; ordinary queued prompts wait for a future turn. The loop normally preserves that distinction by moving leftover steering into another step while leaving the queued-prompt FIFO alone. +Steering is input for another model step inside the current turn; queued prompts wait for a future turn. Ordinary continuation remains extensible: the loop computes a default, runs `agent/turn-continuation`, records any force-continue reason as steering, and treats pending steering as a reason to continue. -Ordinary continuation remains extensible. The loop computes a default, runs the `agent/turn-continuation` waterfall, records any force-continue reason as steering, and folds pending steering into the decision because steering normally demands another model step. +The scoped serial `agent/turn-stop` checkpoint runs after that folding. A listener returns `{ action: 'stop' }` or abstains with `undefined`; malformed values and throws close the current turn with an error. A stop is terminal, so later listeners and steering cannot restore continuation. -The scoped serial `agent/turn-stop` checkpoint runs after that folding. Its strict serial helper consults listeners in order until one returns a non-`undefined` value; a listener returns `{ action: 'stop' }` or abstains with `undefined`. The dedicated helper exists because ordinary Cordis serial dispatch treats `null` and `false` as framework abstentions, while this public contract has exactly one abstention value. A stop is terminal, so later listeners and pending steering cannot restore continuation. A malformed result, including `null` or `false`, or a throwing policy closes the current turn with an error while leaving the driver available for later work. +The loop uses `strictSerial` because ordinary Cordis serial dispatch treats `null` and `false` as abstentions. This terminal protocol permits only `undefined` to abstain, making accidental return values fail closed. -Terminal stop deliberately discards steering while preserving ordinary queued prompts. Its terminal state remains in force through `turn/end` and the durability flush, so steering added by continuation, turn-close, or flush listeners cannot escape through the loop's late-steering fallback into another step or turn. This is the explicit exception to the normal rule that leftover steering becomes input for another turn. The stronger terminal control is reserved for protocols, such as a completed structured child, where further model work would violate the result contract. +Terminal state remains active through `turn/end` and the durability flush. Steering added by continuation, turn-close, or flush listeners is discarded after a terminal stop, while the ordinary queued-prompt FIFO remains untouched. ```text afterSuccessfulStep(turn): @@ -845,7 +792,6 @@ afterSuccessfulStep(turn): if steering is pending: decision = continue terminal = await strictSerial(agent/turn-stop) - # undefined means abstain; null, false, malformed values, and throws are errors if terminal == stop: discard steering terminalStopped = true @@ -860,13 +806,27 @@ afterSuccessfulStep(turn): move leftover steering to the next-turn queue ``` -The queued-prompt FIFO is separate and is never drained by terminal stop. +This stronger control is reserved for terminal protocols such as a completed structured child; ordinary continuation policy remains cooperative. -## Subagent composition +## Subagents: the composition proof -In-process subagents demonstrate how the scope, lifecycle, and final-policy pieces compose. A provider builds the child's world during unpublished setup, then lets the ordinary agent lifecycle own it. +In-process subagents add no second scoping model. They create a fresh flat child scope during unpublished setup, install ordinary scoped persona/filter/protocol registrations, own the child through a run handle, and use the same owner-final checkpoints for structured output. -The caller-facing seam separates acceptance, readiness, result settlement, cancellation, and disposal. This example assumes the spawn backend is loaded under its configurable default provider name, `spawn`, `parent` is top-level (depth 0), and a global `read` tool has already been registered. A caller observes readiness before treating the child as live and always disposes the run: +The roles and phases are explicit: + +| Role | Responsibility | +|---|---| +| Caller | Supplies parent, prompt, optional child configuration, and eventual disposal | +| `SubagentService` | Validates capabilities, owns the public wrapper, normalizes result and lifecycle telemetry | +| `SubagentProvider` backend | Chooses transport and creates one run | +| In-process driver | Owns child creation, setup, prompt drive, result read, cancellation, and teardown | +| Child `Agent` | Uses the ordinary agent lifecycle and its fresh `agent.ctx` | + +```text +accepted start -> started (published) -> result (settled) -> dispose (quiescent) +``` + +Assume the in-process `spawn` backend uses its default name, `parent` is top-level, and global `read` exists: ```js const run = ctx.subagents.start('spawn', { @@ -886,156 +846,15 @@ const run = ctx.subagents.start('spawn', { try { await run.started const result = await run.result - // result.structured exists only after a successful committed capture. + // result.structured exists only after successful final commit. } finally { await run.dispose() } ``` -### Inputs and ownership are fixed before asynchronous creation +### The child world uses ordinary registrations -This section follows a child from provider/request acceptance through the service wrapper and then through the workflow bridge. Each layer captures its boundary before arbitrary asynchronous work and owns the cleanup it may need to start. - -#### Provider and request acceptance own the child boundary - -Provider registration first freezes an acceptance snapshot of the provider name, capability flags, parent-context descriptor, and `start` callback; the callback is bound to the original provider object so its intentional internal state stays live. Lookup, validation, model-facing wording, dispatch, lifecycle notifications, and hot-reload cleanup all use that snapshot. Mutating or reusing the caller's provider object later therefore cannot rename a live entry, change its advertised powers, replace its callback, or make its disposer delete the wrong key. - -Starting a run reads every top-level request field once before capability validation, then snapshots every accepted field before asynchronous owner setup. This order makes checked and delegated capabilities identical even for a JavaScript caller with stateful accessors. Fixed scalars are checked at the same boundary: `maxDepth` must be a non-negative safe integer and `persona` must be a string. The parent and abort signal are retained as identity capabilities but never reread from the mutable request record; tool filters, seed events, agent options, output schema, and prompt are detached through the one-pass lossless-JSON materializer. The exported in-process driver repeats this boundary for direct callers before it awaits run-owner activation, including taking one seed snapshot from which it derives both the child prefix and `seedLength`. Later caller mutation therefore cannot change lifecycle scope, configuration, the schema enforced by the capture tool, or the prompt eventually logged and sent. - -Depth validation is intentionally repeated at every public entry path, while one seam-owned helper keeps the accepted domain identical: - -```text -tool-subagent plugin load: - schema requires natural <= Number.MAX_SAFE_INTEGER - assertSubagentMaxDepth(config.maxDepth) - -SubagentService.start(request): - capture request.maxDepth once - assertSubagentMaxDepth(captured maxDepth) - -startInProcessRun(request): - capture request.maxDepth once - assertSubagentMaxDepth(captured maxDepth) - parentDepth = depthOf(parent) # also a non-negative safe integer - childDepth = parentDepth + 1 - if childDepth is not a safe integer: throw RangeError - if maxDepth is defined and childDepth > maxDepth: throw SubagentDepthError -``` - -The derived-value check is separate from validating either input: `Number.MAX_SAFE_INTEGER` is a valid stored parent depth, but adding one cannot produce a contract-valid child depth. The driver rejects that overflow even when no request-level `maxDepth` cap was supplied. - -The driver first installs provider ownership. Only after that succeeds does it attach the request's abort listener and create one run-owner Cordis fiber under `parent.ctx`; an already-unloading provider therefore leaves neither a child nor an orphaned listener. Calling `runOwner.ctx.agents.create()` gives the child factory an explicit `ownerCtx` carrying the run-owner fiber and scope, while the registry's traced factory receiver preserves AgentLoop's injected dependency origin. Parent teardown, provider teardown, and manual run disposal all dispose this same run-owner node; moving it out of the active state synchronously prevents an unpublished setup from publishing afterward, while all three paths follow one quiescence promise. This structured ownership does not change the child's flat registration view. - -#### The service wrapper orders readiness, results, and lifecycle - -The provider's run separates acceptance from publication with `started: Promise`, but the service does not expose that caller-owned handle directly. It captures `id`, `started`, `result`, and each method once, binds methods to the provider-owned run handle, and returns a frozen service-owned wrapper. Capturing `dispose` first also preserves a rollback capability if a later accessor or method check reveals a malformed handle. The wrapper installs its shared disposal promise before invoking the raw provider callback, so synchronous reentry through the returned wrapper and ordinary repeat calls join one provider disposal rather than slipping through a not-yet-assigned memo. If the raw disposer directly returns that same reentrant wrapper promise, the service rejects the cyclic provider contract instead of awaiting a promise that depends on itself forever. - -The wrapper's `result` promise captures `output`, optional `structured`, and `stopReason` once and resolves to one detached, deeply frozen lossless-JSON value shared by the caller and lifecycle telemetry. Malformed terminal data is an infrastructure fault; it rejects only after the service has started rollback of the provider attempt. The service observes the normalized result immediately, before waiting for readiness, so an early rejection is never temporarily unhandled. - -For spawn and fork, the accepted `started` promise fulfills only after the child factory returns a published handle. The service can then emit `subagent/start` with `ctx.agents.get(id)` already live and release any buffered terminal event; if readiness rejects, it emits neither start nor end. Lifecycle notification is fire-and-forget and non-vetoing: each listener receives the same deeply frozen payload, and synchronous throws or returned-promise rejections are logged and contained per listener without awaiting them. The child result driver awaits the same readiness boundary before sending the prompt. - -```text -startInProcessRun(providerContext, acceptedRequest): - snapshot all request data, including parent identity - - providerLink = providerContext.effect(onDispose => disposeRunOwner()) - attach snapshot.abortSignal listener - runOwner = mount no-op plugin under snapshot.parent.ctx - - returnedRun.dispose = () =>: - dispose providerLink - await disposeRunOwner() - - creation = runOwner.ctx.agents.create({ - fresh ids and lineage, - detached options and optional seed, - setup(childCtx) => install persona, tool restriction, structured runtime - }) - - returnedRun.started = creation.then(childHandle => publication complete) - returnedRun.result = async: - await returnedRun.started - send the child prompt, await idle, derive the terminal result - -SubagentService.start(...): - providerRun = provider.start(detached request) - serviceRun = freeze({ - id, started, and methods captured once from providerRun, - methods bound to providerRun, - result: normalize once into detached, deeply frozen lossless JSON - }) - attach settlement handlers to serviceRun.result immediately - attach handlers to serviceRun.started: - on fulfillment, emit subagent/start and then buffered or eventual subagent/end - on rejection, discard buffered lifecycle telemetry - return serviceRun immediately -``` - -#### The workflow bridge closes readiness and settlement races - -Every downstream protocol that announces a subagent must honor the same boundary. The workflow worker bridge therefore registers the returned run before waiting, observes and snapshots `result` immediately, and sends `ChildStarted` only after `started` fulfills while admission remains open. A readiness rejection is refused and host-disposed; `ChildStartError` is sent while worker-message admission remains open, and an already-retired exact run is not cleaned twice. Provider `start()` is itself arbitrary code and may synchronously reenter workflow cancellation before its returned run reaches that registry. The bridge attaches both promise observers, re-checks terminal admission immediately after `start()` returns and again at readiness, and turns a closed boundary into identity-guarded cancellation, disposal, and refusal rather than late worker admission or lifecycle announcement. An arbitrary provider may still fulfill its own `started` promise after the workflow boundary; the bridge refuses and cleans up that attempt instead of claiming it can undo provider-side publication. - -```text -Workflow worker bridge after receiving returnedRun: - register the run so cancellation can reach pre-publication work - attach result settlement handlers immediately and snapshot the outcome - re-check terminal admission after provider start returns - if admission closed: - if the exact run remains registered: cancel once and dispose it - if worker-message admission remains open: send ChildStartError - else wait for returnedRun.started: - on fulfillment: - re-check terminal admission - if closed: apply the same identity-guarded refusal - else: send ChildStarted; then send the buffered or eventual outcome - on rejection: - if worker-message admission remains open: send ChildStartError - if the exact run remains registered: dispose it - -Worker after choosing its result: - queue Result on the worker-to-host port - only then reap stray child handles - -Host at workflow Result receipt: - cancellationWasRequested = external cancellation is already in flight - atomically claim chosen = - if cancellationWasRequested and result is not cancelled: - cancelledResult - else: - result - - if not cancellationWasRequested: - abort the shared child-request signal - call cancel("workflow settled") on every host-registered run - - settle chosen - -Host at the first worker death signal: - close worker-message admission - claim death or preserve an earlier cancellation/Result/grace outcome - cancel and dispose every registered child - synthesize missing lifecycle ends - -Host at physical worker exit: - perform a final disposal-only sweep - do not repeat explicit child cancellation -``` - -Cancellation before readiness is a publication decision, not merely a flag for later result mapping. The in-process run synchronously deactivates its owner fiber. If cancellation lands before publication, the factory's liveness check prevents either creation edge. If it begins synchronously inside `session/created`, `agent/created`, or `agent/session-start`, the publication barrier lets the current notification phase unwind without revoking its world, the next liveness check prevents every later phase and driver start, and rollback pairs every creation edge that already began. In either case `started` rejects, no `subagent/start` or `subagent/end` is emitted, and the run result settles as `aborted`. - -Receipt of the worker's `Result` message is the workflow host's atomic first-wins boundary. The worker queues that message before its own settlement-reap `ChildCancel` messages, so same-port FIFO prevents an internal child callback from masquerading as earlier run cancellation. Each contender records its claim before its own callback fanout: external `cancel()` records its reason first, while Result receipt snapshots any earlier cancellation and claims the resulting terminal outcome before invoking settlement-cleanup provider code. A caller, signal, or dispose cancellation already in flight therefore overrides a non-cancelled worker report, while the report wins otherwise. Before exposing that chosen result, the host drives both permitted child-cancellation channels by aborting the shared request signal and calling every registered run's `cancel()`, including runs still waiting on readiness. Those calls are settlement-only cleanup, and the terminal claim makes a reentrant `WorkerRun.cancel()` a side-effect-free loser rather than merely repairing its result afterward. Host fanout and the worker's FIFO-later `ChildCancel` can both reach the explicit channel, so a per-call gate invokes each provider `cancel()` at most once; the seam does not require that callback to be idempotent. Explicit child cancel callbacks are contained independently so one throwing callback cannot starve peers or alter settlement. - -Unexpected worker death uses the same terminal-claim rule, but terminal ownership, message admission, and exit cleanup are separate state. The host snapshots whether external cancellation was already accepted, claims either `cancelled` or the death error, closes inbound worker messages, and only then reaps children and synthesizes missing lifecycle events. Closing admission is necessary because Node may emit `error`, deliver an already-queued `message`, and only then emit `exit`; without the logical barrier, that message could start a child or narrate after `workflow/end`. Provider code reentering cancellation during cleanup cannot rewrite a death-first error; conversely, a cancellation accepted before death remains the winner. If Result or grace already claimed the outcome, death preserves it while still reaping promptly. Physical exit then performs a final disposal-only sweep without repeating explicit provider cancellation. `handle.dispose()` claims its public promise before that traversal invokes cancellation or disposal callbacks, and every `disposeChild` path independently claims the call ID promise before invoking the wrapped child disposer. Public-first reentry returns the existing holder promise; worker-first reentry may begin holder disposal, whose child traversal joins the already-claimed call ID promise. This distinction is necessary because grace settlement precedes `worker.terminate()` and its exit event: suppressing a duplicate outcome, late message, or repeated cleanup request must not suppress disposal of survivors in the host registry. - -Together these rules prevent an early result rejection from going unhandled, ensure `workflow/agent-start` never names an unready child, and prevent the bridge from admitting or announcing a child after its workflow has ended. - -Parent teardown reaches `runOwner` by nesting; the provider and returned run handle reach the same node through their explicit disposers. - -### Persona, filtering, and lifetime use ordinary registrations - -A child persona is a scoped `deployment:persona` section that shadows the deployment-wide section. A child tool filter is a scoped restriction over global end capabilities. Omitted filters remain omitted; a materialized empty `allow` list means “allow nothing” and is not confused with absence. - -The child's persona, filter, and structured runtime are installed inside factory setup. Persona and filtering use public registration methods directly. The package-internal structured helper groups the public tool, prompt, protection, guard, and listener registrations that form one terminal protocol: +A child persona is a scoped `deployment:persona` section. Its tool filter is a scoped restriction over the live global tool layer. Structured output is a bundle of scoped tool, prompt, protection, guard, and listener registrations. ```js let structured @@ -1054,30 +873,31 @@ const setup = childCtx => { } ``` -The common run-owner fiber gives structured-concurrency-style teardown without importing the parent's registration layer into the child. The filter affects the child's global tool view; it is not a parent-derived authority ceiling. +The driver creates one run-owner fiber under `parent.ctx` and calls the child factory through it. Parent teardown, `spawn` backend teardown, and manual run disposal reach the same node, but the child still receives a new registration key. Lifetime inheritance therefore does not imply registration inheritance. ### Structured output is a child-owned terminal protocol -A structured child registers a real-schema `structured_output` tool and its instruction through its own context. Concurrent children can use different schemas because each scope resolves its own definition, with no global placeholder, reference count, or remove-for-everyone-else pass. +A structured child registers a real-schema `structured_output` tool and instruction in its own scope. Concurrent children can use different schemas without a global placeholder, reference count, or remove-for-everyone pass. -Presentation mode changes where the model invokes the capture capability, but not which child owns it: +Presentation mode changes the invocation route, not ownership: -| Tool mode | Registry's canonical wire contribution | Generated SDK | Structured-output guarantee | -|---|---|---|---| -| `native` | Visible end-capability schemas, including scoped `structured_output` | None | Protection restores the capture schema and instruction | -| `code` | Reserved `run_code` transport | Visible end-capability bindings, including `structured_output` | Protection keeps `run_code` and the SDK present, keeps native `structured_output` absent from the wire, and restores the instruction | -| `both` | Visible native schemas plus reserved `run_code` | Visible end-capability bindings, including `structured_output` | The model may call the protected capture capability natively or through the protected transport | +| Mode | Advertised invocation route | Canonical wire contribution | Generated SDK | Owner-final guarantee | +|---|---|---|---|---| +| `native` | Native `structured_output` | Visible native schemas, including scoped capture | None | Restore the capture schema and instruction | +| `code` | The `structured_output` SDK binding inside `run_code` | Reserved `run_code`; native capture remains absent | Visible end-capability bindings, including capture | Restore the transport, SDK, native absence, and instruction | +| `both` | Either native capture or its SDK binding | Visible native schemas plus `run_code` | Visible end-capability bindings, including capture | Restore both invocation routes and the instruction | -The table describes the registry's named canonical contribution. An unrelated assembly listener may deliberately add another schema; protection does not erase unrelated names. +Tool mode controls presentation, not an execution allowlist. In code mode, an adapter or direct caller that emits the unadvertised `structured_output` name can still resolve the scoped end capability and takes the native one-stage commit path; a deployment that must forbid that route needs an execution guard. -### Capture uses stage, final commit, monotonic denial, and terminal stop +An unrelated assembly listener may deliberately add another schema; named protection does not erase unrelated contributions. -The capture tool validates its arguments and stages the cloned value in a JavaScript `WeakMap` keyed by the identity-stable `ToolExecution`. This is an object-identity table whose key does not keep an abandoned execution alive. Validation failure becomes the ordinary `INVALID_ARGS` error that the model can correct within the turn. +#### Native commits once; Code Mode commits twice -The scoped `tools/result` observer commits a direct native capture only when that exact execution's authoritative final result succeeds. A later call with a reused string call ID cannot reach the weak-keyed stage, and a post-execution block cannot promote it. +The capture body validates and stages a cloned value by stable `ToolExecution` identity. The scoped final-result observer commits a native capture only if that exact execution's final result succeeds. + +A schema-validation failure becomes the ordinary `INVALID_ARGS` tool result, so the model can correct the value and call the capture tool again within the same turn. ```text -# Native structured-output call structured_output.body(value, execution): validate value against this child's schema staged[execution] = clone(value) @@ -1090,10 +910,9 @@ on tools/result(execution, finalResult): captured = value ``` -For a Code Mode SDK call, successful inner observation records a pending value against the child execution's opaque `parent` token instead of committing immediately. When the enclosing `run_code` reaches its own `tools/result`, the observer compares that pending token with the outer execution's `token` and commits only on success. A program error or outer post-policy block discards the pending value. This extra boundary is necessary because an inner side effect can succeed while the transport that is supposed to deliver the structured answer still fails. +For a Code Mode SDK call, successful inner observation records a pending value against the opaque outer `run_code` token. Commit waits for the outer transport's own successful final result because an inner side effect can succeed while the program or its post-policy still fails. ```text -# Code Mode adds an outer transport commit on tools/result(innerStructuredCall, innerResult): if innerStructuredCall is staged: value = staged.remove(innerStructuredCall) @@ -1108,21 +927,139 @@ on tools/result(outerRunCodeCall, outerResult): captured = value ``` -The native path has one final-result commit; Code Mode has two because the inner capability and outer transport can fail independently. +Once capture is staged against an outer transport or committed, the scoped guard denies later calls in that response. After commit, `agent/turn-stop` ends the turn after ordinary continuation and steering fold. A child that otherwise completes cleanly without a committed capture returns an error rather than being re-prompted; requesting a schema makes output mandatory, not guaranteed. -Once a value is captured or pending on its outer transport, the scoped `ToolGuard` denies later calls in the same response. After a committed capture, the scoped `agent/turn-stop` ends the turn after ordinary continuation and steering have been folded. Together these boundaries prevent post-capture side effects and prevent a successful tool call from purchasing an otherwise automatic extra model step. +### The run protocol separates acceptance, readiness, result, and disposal -The provider does not re-prompt a child that finishes without a committed capture. Such a run returns an error result with no `structured` value; requesting an output schema creates a requirement, not a guarantee that a failed child produces a value. +`SubagentService.start()` returns synchronously, but `run.started` is the publication boundary. Callers treat the child as live only after readiness, consume `result`, and always dispose the run. + +Pre-readiness cancellation of an in-process run deactivates the run-owner fiber, prevents publication, rejects `started`, resolves `result` as `aborted`, and emits neither subagent lifecycle edge. + +`SubagentProvider` registration captures name, capability flags, the `inheritsParentContext` conversation-history descriptor, and the bound start callback once. The descriptor says whether completed parent turns seed the child's conversation; it says nothing about scope, services, tools, or authority. + +Starting a run captures every request field once. Parent and abort signal remain identity references; prompt, filter, schema, and options are detached lossless JSON; fixed `persona` and absolute `maxDepth` values validate before backend ownership. The in-process backend separately snapshots its optional session seed, and the service snapshots the terminal result when it settles. + +Depth validation repeats at each public entry while one helper owns the accepted domain: + +```text +tool-subagent plugin load: + assertSubagentMaxDepth(config.maxDepth) + +SubagentService.start(request): + capture and validate request.maxDepth + +startInProcessRun(request): + capture and validate request.maxDepth + parentDepth = validated depthOf(parent) + childDepth = parentDepth + 1 + reject if childDepth is not a safe integer + reject if maxDepth exists and childDepth > maxDepth +``` + +Only `undefined` means parent depth zero. Present depth and cap values must be non-negative safe integers and must not be negative zero; derived overflow rejects even when no request cap exists. + +The service does not expose the backend-owned run handle directly. It captures `id`, `started`, `result`, and methods once; binds methods to that handle; wraps result in one detached frozen record; and installs a shared disposal promise before calling untrusted backend cleanup. Once a callable backend disposer has been captured, a malformed later field triggers rollback; if no callable disposer exists, rollback is impossible and acceptance fails immediately. A backend disposer that directly returns the wrapper's reentrant promise is rejected as a cycle instead of hanging. + +```text +startInProcessRun(backendContext, acceptedRequest): + install backend ownership + attach accepted abort signal + create run-owner fiber under accepted parent.ctx + create child through runOwner.ctx.agents with unpublished setup + + started = child creation publication + result = after started: + send accepted prompt + await child idle + derive owned terminal result + dispose = dispose run owner and await quiescence + +SubagentService.start(...): + backendRun = backend.start(detached request) + serviceRun = freeze accepted id, readiness, bound methods, normalized result + observe result immediately + after readiness: + emit subagent/start, then buffered/eventual subagent/end + on readiness failure: + emit neither lifecycle edge +``` + +The service observes result settlement immediately even while readiness is pending, preventing an early rejection from becoming temporarily unhandled. Lifecycle listeners receive one frozen payload; their throws and returned-promise rejections are contained independently and cannot veto the run. + +## Workflow integration preserves the subagent contract + +The worker workflow bridge preserves the same readiness, terminal-claim, and bounded-cleanup boundaries across a message port. It never announces an unready child, never lets cleanup rewrite an already chosen result, and never suppresses disposal merely because another terminal fact already won. + +The worker executes the workflow script and exchanges protocol messages; the host owns `SubagentService`, which invokes `SubagentProvider` backends and returns normalized run wrappers that the host retains. Their lifetimes follow dependency shape: an AgentLoop-created agent stops when its loop unloads, while a workflow run captures its holder-bound `SubagentService` at start, so unloading the workflow engine prevents new runs without revoking an already returned run. + +Three state dimensions remain separate: + +| Dimension | Question | Winning rule | +|---|---|---| +| Admission | May a worker message still start or announce a child? | Closed admission refuses the exact run and cleans it up | +| Terminal claim | Which external result does the workflow expose? | Earlier accepted external cancellation wins; otherwise first result/death claim wins | +| Physical cleanup | Which registered children and worker resources remain? | Every path may still dispose survivors through per-call gates | + +### Child admission waits for readiness + +After `SubagentService.start()` returns its normalized wrapper, the host registers that exact wrapper before awaiting, attaches result observers immediately, and rechecks admission both then and when `started` settles. A closed boundary claims cancellation and disposal for that exact entry, removes it only when disposal settles, and reports `ChildStartError` only while the worker reply channel remains open. + +The backend's nested `start()` may synchronously reenter workflow cancellation before the service wrapper reaches the host registry. The immediate post-start check and exact-wrapper identity guard close that interval; a backend that later fulfills its own readiness cannot resurrect workflow admission. + +```text +after subagents.start returns its run wrapper: + register exact wrapper for cancellation + observe and snapshot result immediately + if admission closed: refuse and clean exact wrapper + else await run.started + + on ready: + if admission closed: refuse and clean exact run + else send ChildStarted, then buffered/eventual outcome + + on readiness failure: + send ChildStartError only if the worker reply channel remains open + dispose exact wrapper if still registered +``` + +### Each terminal contender claims before its own callbacks + +Each terminal path records the state it owns before invoking its own callback fanout. External `cancel()` records the accepted cancellation reason before invoking child cancellation. On the Result path, the worker queues its `Result` message before settlement cleanup messages on the same port, and the host records the winning result before any Result-triggered abort or cancellation. Reentry therefore observes the fact that already won instead of rewriting it. + +```text +on workflow Result: + cancellationWasAlreadyAccepted = external cancellation is in flight + claim chosen result: + if earlier external cancellation and result is not cancelled: + cancelled result + else: + worker result + + if not cancellationWasAlreadyAccepted: + abort shared child-request signal + cancel every registered child through its at-most-once gate + settle chosen result +``` + +The worker may also send a later `ChildCancel`; host fanout and the worker message share one per-call cancellation gate, so an arbitrary backend's `cancel()` need not be idempotent. Each callback is contained independently. + +### Worker death, exit, and disposal remain separate + +The first worker death signal closes message admission, claims a death result unless an earlier terminal fact won, cancels and disposes registered children, and synthesizes missing lifecycle ends. A queued message can arrive between Node's `error` and `exit`, so the logical admission barrier—not physical exit—prevents late child creation or narration. + +Physical exit performs a final disposal-only sweep without repeating explicit cancellation. A cancellation grace period bounds how long the host waits for cooperative settlement before terminating the worker; a grace result can already be chosen while exit cleanup still needs to dispose surviving child handles. The bound is real: after grace expires, public disposal may return after invoking child disposal and reaping host resources even if a slow backend disposer has not reached quiescence. + +Public `handle.dispose()` claims its shared promise before invoking cancellation or child callbacks. Each `disposeChild` likewise claims its call-ID promise before invoking the backend disposer. Public-first reentry joins the public promise; worker-first reentry lets the holder traversal join the already claimed child promise. Settled `dispose()` still drives a host-side reap before awaiting quiescence, so a fire-and-forget child cannot remain alive merely because workflow result settlement already occurred. + +Together these rules ensure `workflow/agent-start` names only ready children, external result precedence is stable, and every surviving child reaches disposal. ## Correctness enforcement -Scope mistakes are fail-open if they merely omit a carrier, so the implementation checks the contract at API, type, runtime, and repository-gate boundaries. None of these checks substitutes for using the correct runtime carrier. +The runtime rule is checked at four escape boundaries: API shape couples related subjects, TypeScript marks typed dispatch, development invariants inspect actual dispatch, and repository gates keep declarations aligned with enforcement. -### API shape couples subjects that must agree +### API shape couples values that must agree -`agentEvents(context, agent)` couples the dispatch carrier to the agent argument, `assembleContextFor(agent)` couples prompt facts to the scope selector, and `SessionStore.flush(session)` owns lookup of the carrier captured when the session entered the store. These helpers make a mismatched subject harder to express than the correct spelling. - -Their essential construction makes the coupling explicit: +`agentEvents(context, agent)` couples carrier, subject, and first event argument. `assembleContextFor(agent)` couples prompt facts with scope selection. `SessionStore.flush(session)` owns lookup of the carrier captured when the session entered. ```text assembleContextFor(agent): @@ -1133,99 +1070,108 @@ agentEvents(context, agent): return dispatcher that always injects agent as the event subject ``` +These helpers make a mismatch harder to express than the correct spelling. + ### Type markers cover every scoped event declaration -Scoped agent, approval, tool, prompt, session, and subagent lifecycle events declare a `Scoped` receiver. TypeScript therefore rejects a bare subject at typed dispatch sites, including the `subagent/start` and `subagent/end` paths whose scope is the delegating parent. +Scoped agent, approval, tool, prompt, session, and subagent lifecycle events declare a `Scoped` receiver. TypeScript rejects a bare subject at typed dispatch sites, including subagent lifecycle events scoped to the delegating parent. -The marker is compile-time only. JavaScript callers, casts, and direct use of Cordis's dispatch APIs can bypass it, which is why the runtime checks remain necessary. +The marker is compile-time only; JavaScript, casts, and direct Cordis dispatch can bypass it. -### Development invariants check actual dispatch +### Development invariants inspect actual dispatch -The invariants plugin observes Cordis's internal dispatch path before listener delivery. For each scope-filtered event it requires a marked carrier and, where the event arguments expose the subject, verifies that the carrier key is the same object. +The invariants plugin observes Cordis's internal dispatch before listener delivery. Every scoped event requires a marked carrier, and events whose arguments expose the subject require the carrier key to be the same object. -Session and subagent payloads do not expose the owner key directly, so their invariant proves carrier presence while their service centralizes how the correct key is chosen. Additional invariants reject an assembly whose `agent` and `scope` disagree and a turn opened before `agent/session-start`. +Session and subagent payloads do not expose their owner key directly, so their service centralizes key selection and the invariant proves carrier presence. Additional invariants reject an assembly whose `agent` and `scope` disagree and a turn opened before `agent/session-start`. + +Dedicated `dsh-scope` unit tests cover the carrier's advanced Proxy behavior: private-field method binding, call/construct shape, primordial filter invocation, own-key/descriptor consistency, and explicit configurable definitions. These are implementation tests, not checks performed by the invariants plugin. ### Repository gates keep declarations and dispatchers aligned -`verify-scoped-dispatch` compares the declared scoped events with the runtime invariant table, and the generated event matrix requires every declaration to have a recognized dispatcher. Source JSDoc is regenerated into the [event catalog](../../../cordis-catalog/events.md), keeping the exhaustive signature and mode reference in one place. +`verify-scoped-dispatch` compares declared scoped events with the runtime invariant table, and the generated event matrix requires every declaration to name a recognized dispatcher. Source JSDoc generates the [event catalog](../../../cordis-catalog/events.md), which remains the exhaustive signature and mode reference. ## Alternatives considered -The rejected designs either split visibility from ownership, isolate the wrong boundary, or depend on extension ordering for correctness. +The rejected designs fail one of the four governing questions: they separate visibility from ownership, choose the wrong isolation unit, expose partial lifecycle, leave accepted values mutable, or rely on extension order for invariants. ### Pass an agent option to every registration -An API such as `tools.register(definition, { agent })` leaves global registration as the leak-by-omission default and requires parallel scope plumbing in every registry. It also allows “visible to agent A, disposed with unrelated plugin B,” which the scoped context makes unrepresentable. - -### Create one isolated service graph per agent - -Service isolation chooses one registry instance for a context, while agent composition needs a merged view of deployment-global contributions plus one agent's additions. Per-agent graphs would duplicate shared adapters and force infrastructure such as persistence and UI bridges to discover every new instance. - -Isolation remains appropriate for independent applications. It is too coarse for collaborating agents inside one deployment. - -### Inherit the parent's registrations into a child - -Hierarchical registration inheritance makes lifetime convenient but silently copies every parent-scoped tool and policy into each child. A flat view plus an explicit parent-owned disposer separates lifetime from registration composition: the parent owns the child without importing the parent's layer. As the [security non-goal](#security-and-authority-are-explicit-non-goals) states, flat lookup does not by itself impose a child-within-parent authority relationship. - -### Publish the agent before running setup - -Early publication lets setup resolve the agent from global registries, but observers can see and act on a partially configured world. Rollback can remove entries but cannot retract external effects from already-run listeners. - -The unpublished callback already receives both the agent context and its `ctx.agent` association, so early global lookup is unnecessary. - -### Allow only synchronous setup - -Synchronous setup is simpler but cannot honestly compose a child plugin whose activation is asynchronous. In TypeScript, a callback returning a promise can also be assigned to a void-returning callback type, so declaring setup as synchronous would not reliably prevent accidental escape from the rollback boundary. - -Awaited setup makes the transaction explicit and keeps the first assembly behind it. - -### Enforce invariants with prepended waterfall listeners - -A prepended listener is not necessarily outermost: another plugin can prepend later, a short-circuit can skip inner work, and an outer wrapper can replace the result after delegation. The same issue appears in prompt assembly, tool decisions, result commit, and turn continuation. - -The owner-final APIs express the actual strength required by each rule: restore named canonical data, deny monotonically, observe the immutable final outcome, or stop after all ordinary continuation inputs are folded. +An API such as `tools.register(definition, { agent })` leaves global registration as the leak-by-omission default and repeats scope plumbing in every registry. It can also express “visible to A, disposed with unrelated plugin B,” which `agent.ctx` prevents. ### Filter events while keeping registries global Listener filtering prevents a hook from intercepting the wrong agent but does not scope tool schemas, executable lookup, prompt sections, variables, or Code Mode bindings. Persona, tool filtering, and concurrent structured schemas would still require global mutation. +### Create one isolated service graph per agent + +Service isolation chooses one registry instance, while agent composition needs a merged view of deployment globals plus one agent layer. Per-agent graphs duplicate adapters and force shared persistence and UI infrastructure to discover every instance. + +Independent applications still deserve separate graphs; collaborating agents inside one deployment do not. + +### Inherit the parent's registrations into a child + +Hierarchical registration inheritance silently copies every parent-scoped tool and policy into the child. A flat child layer plus a parent-owned disposer separates lifetime from composition: the parent owns the child without importing its registrations. + +This choice does not create a parent-subset authority guarantee; registration scope and authorization are different designs. + +### Publish the agent before running setup + +Early publication lets setup find the agent in global registries but lets observers act on a partially configured world. Rollback can remove entries but cannot retract external effects from listeners that already ran. + +The unpublished setup callback already receives `agent.ctx` and `ctx.agent`, so early global lookup is unnecessary. + +### Allow only synchronous setup + +Synchronous setup cannot honestly compose child plugins whose activation is asynchronous. TypeScript also permits a promise-returning callback where a void return is expected, so a synchronous-looking type would not reliably contain accidental async work. + +Awaited setup makes the transaction explicit and keeps first publication and prompt assembly behind it. + +### Validate caller data, then clone it + +Validation followed by a separate clone rereads accessors, so it can approve one value and retain another. A generic JSON clone can also erase or coerce exotic prototypes and unsupported values. The lossless-JSON traversal validates and materializes one captured value in the same operation. + +### Enforce invariants with prepended waterfall listeners + +A prepended listener is not permanently outermost: another plugin can prepend later, a short-circuit can skip inner work, and an outer wrapper can replace a downstream result. The same defect appears in prompt assembly, tool decisions, result commit, and turn continuation. + +The four owner-final APIs express the exact one-way power required: restore named canonical data, deny monotonically, observe immutable final outcome, or stop after ordinary continuation folding. + ### Put agent-scope policy inside vendored Cordis -Cordis already provides derived contexts, effect-owning fibers, and receiver-based listener filtering, so the harness-level primitive composes those mechanisms instead of teaching the framework about agents, tools, prompts, or global-plus-scope resolution. The implementation does harden Cordis's domain-neutral lifecycle substrate: effects are owner-visible before setup callbacks, child fibers are parent-owned before publication, and an unloading fiber rejects registrations that missed its cleanup snapshot. Those rules are required by every plugin under reentrant HMR, not scope-specific policy pushed into the framework. +Cordis already supplies derived contexts, effect ownership, and receiver-based filtering. The harness-level primitive composes those domain-neutral mechanisms rather than teaching Cordis about agents, tools, prompts, or global-plus-agent merge rules. + +The lifecycle hardening remains correctly inside Cordis because effect pre-registration, parent ownership before child publication, and rejection of late effects protect every plugin under reentrant hot reload, not only agent scopes. ## Consequences -The design makes per-agent composition ordinary and lifecycle-safe at the cost of a small scope runtime and several deliberately narrow final-policy APIs. The complexity is concentrated in services and dispatch helpers rather than repeated in every plugin. +The design buys one composition model across data, behavior, and lifetime. Its cost is per-scope state, transactional lifecycle machinery, owned runtime snapshots, disciplined dispatch, and four deliberately narrow owner-final APIs. ### Benefits -The main benefit is one composition model across data, behavior, and lifetime: registrations follow their context, while service-owned finalizers protect only the invariants that require stronger ordering. +The main benefit is that plugin authors change context, not API. Registries and dispatchers then apply the same agent key across presentation, execution, observation, and cleanup. -- Plugin authors use the same registration APIs globally and per agent; only the context changes. -- Registry-owned prompt schemas, executable lookup, Code Mode bindings, policy listeners, and UI presentation resolve from the same agent view. -- Create and resume expose no partially configured registry entry during awaited setup, and overlapping caller/factory ownership leaves no gap between resume load, preparation failure, and the live lifecycle. -- Agent disposal revokes scoped contributions after the driver and all final or idle-injection session flushes have settled, and retains both public IDs until scope cleanup is quiescent. -- Structured output composes per child without global mutation or listener-order assumptions. -- Existing unscoped plugins remain deployment-wide contributors and observers. +- Global plugins remain deployment-wide contributors and observers. +- Per-agent tools, prompt state, restrictions, and listeners use ordinary registration methods through `agent.ctx`. +- Model-visible schemas, executable lookup, Code Mode bindings, policy, and UI presentation resolve from one agent view. +- Create and resume expose no partially configured registry entry, while caller and AgentLoop ownership cover every await and rollback path. +- Agent teardown preserves the session and scoped listeners through loop exit and final flush, then releases IDs only after scope quiescence. +- Structured output composes independently per child without global mutation or middleware-order assumptions. ### Costs and constraints -The costs are concentrated in dispatch discipline, per-scope registry state, and owner-final decision boundaries that are intentionally stronger than ordinary middleware. +The costs correspond to the four governing questions rather than one hidden framework abstraction. -- Every scoped event dispatcher must carry the correct receiver; fused helpers, type markers, invariants, and gates exist because omission would otherwise deliver only to global listeners. -- `agent.ctx` is service-bearing. Its available services come from the agent loop's injected context, so holders receive that deliberate dependency surface; this is not confinement. -- Registries maintain per-scope maps and perform a global-plus-one-layer merge for the agent lifetime. -- The dispatch carrier is proxy-shaped and not identity-equal to its subject, even though method calls and property access behave like the subject. Its composed filter is frozen, and defining a property through the carrier requires an explicitly configurable descriptor because the extensible surrogate cannot truthfully expose a new non-configurable subject property. -- Flat scopes do not inherit parent registrations; a desired child-local contribution must be global or explicitly registered for the child. -- `run_code` is protected transport infrastructure rather than a filterable end capability, so a policy that must forbid programs denies execution at the tool-policy layer instead of removing the transport from a Code Mode prompt. -- Prompt protection restores named canonical contributions and their anchor placement, not the entire assembly; unprotected output remains extensible, while a globally protected section name is deliberately unavailable for scoped shadowing. -- Terminal turn stopping can discard pending steering. That control is appropriate for owner-enforced terminal protocols and too strong for ordinary cooperative continuation policy. -- Programmatic `ctx.agents.create()` and `ctx.agents.resume()` are asynchronous because they await setup. The direct no-setup `ctx.agentLoop.create()` path, used by configuration and programmatic callers that already have complete options, remains synchronous. -- A programmatic agent is caller-owned but also structurally owned by its concrete AgentLoop provider. Reloading that provider tears the agent down even if a consumer still holds its handle, because the handle cannot keep the provider's dependency surface valid. -- Ordered composition requires exact raw effect identities plus shared public quiescence promises; the dual surfaces and lifecycle-long owner sentinels reflect distinct Cordis nesting and repeated-caller requirements. +- **Registration and delivery:** registries maintain global and per-scope state; every scoped dispatcher must carry the real subject's key; the carrier is proxy-shaped and not identity-equal to its subject. +- **Lifecycle:** programmatic `create()` and `resume()` are asynchronous; caller sentinels, AgentLoop trackers, reservations, publication barriers, and shared quiescence promises cover construction and teardown races. +- **Boundary ownership:** public values are copied, frozen, bound, or retained by identity at their acceptance boundary; data that the boundary's owned representation cannot preserve fails instead of being coerced. +- **Owner-final policy:** prompt protection can reserve names, guards can only deny, final result observers cannot transform, and terminal stop may discard steering. +- **Flat scope:** a desired child-local contribution must be global or registered explicitly for the child; parent ownership alone does not import registrations. +- **Code Mode:** `run_code` remains protected transport infrastructure, so policy that forbids programs denies execution rather than removing the transport from an SDK-based prompt. + +The direct no-setup `ctx.agentLoop.create()` path remains synchronous for configuration and callers that already have complete options. Programmatic registry create/resume use the full unpublished transaction. ### Deliberate boundaries -The scope primitive is generic, but this decision applies it only where one agent needs a coherent registration view: tools, prompt state, scoped events, sessions, and in-process subagent composition. `agent.ctx` does not automatically scope every service call; filesystem policy, LLM interception, background subagent state, and other registries retain their existing seams until their own designs explicitly adopt the context rule. +The decision applies registration scope to tools, prompt state, scoped events, sessions, approvals, and in-process subagent composition. `agent.ctx` does not automatically scope every service call; filesystem policy, LLM interception, background subagent state, and other registries retain their existing subject or policy seams until their own designs adopt the rule. -Security hardening remains separate design work; the [security and authority non-goals](#security-and-authority-are-explicit-non-goals) define this RFC's trust boundary without turning registration scope into an authorization model. +Security hardening remains separate work. This design does not sandbox same-process plugins, derive child authorization from a parent, freeze a grant set at agent creation, or introduce generic capability/output/termination tags. Those requirements need an explicit authority model rather than additional meaning attached to registration scope. From 7e3d46a3ceb0b0b32a42d2de843d770ed24ec967 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 13:25:04 +0800 Subject: [PATCH 213/232] docs(scope): split contract from runtime design --- docs/core-data-structures/scope.md | 2 +- docs/rfc/INDEX.md | 1 + .../2026-07-08-agent-scope-contexts.md | 1140 +---------------- .../2026-07-12-agent-scope-runtime-design.md | 969 ++++++++++++++ .../feature/2026-07-05-dynamic-workflows.md | 11 +- packages/core/agent/README.md | 2 +- 6 files changed, 1045 insertions(+), 1080 deletions(-) create mode 100644 docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md diff --git a/docs/core-data-structures/scope.md b/docs/core-data-structures/scope.md index d2a2fc47d4..9ccbfcc1fe 100644 --- a/docs/core-data-structures/scope.md +++ b/docs/core-data-structures/scope.md @@ -1,6 +1,6 @@ # Scoped Registration -The [scope package](../../packages/core/scope) supplies the identity and carrier vocabulary that makes one registration context mean both per-agent visibility and shared lifetime ownership. It is a library primitive rather than a Cordis service; the [agent-scope RFC](../rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md) owns the design rationale, while the package [README](../../packages/core/scope/README.md) owns the callable API and filtering semantics. +The [scope package](../../packages/core/scope) supplies the identity and carrier vocabulary that makes one registration context mean both per-agent visibility and shared lifetime ownership. It is a library primitive rather than a Cordis service; the [agent-scope runtime-design RFC](../rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md#scope-mechanism-context-key-and-lifetime) owns the implementation rationale, while the package [README](../../packages/core/scope/README.md) owns the callable API and filtering semantics. Source: [`packages/core/scope/src/index.ts`](../../packages/core/scope/src/index.ts). diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index 454997ef1f..5e508344fa 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -133,6 +133,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [A shared timeout/deadline primitive, with hard-kill left to each capability](implemented/architecture/2026-07-06-timeout-deadline-library.md) | 2026-07-06 | | [Tool-call timeout policy as a plugin](implemented/architecture/2026-07-07-tool-call-timeout-policy.md) | 2026-07-07 | | [The agent is a registration scope](implemented/architecture/2026-07-08-agent-scope-contexts.md) | 2026-07-08 | +| [Agent-scope runtime design and correctness](implemented/architecture/2026-07-12-agent-scope-runtime-design.md) | 2026-07-12 | ### Process diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index 9707d550f2..9f380e6dc1 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -4,41 +4,43 @@ Status: implemented ## Problem -One application needs to share infrastructure across many agents while giving each agent a coherent local world. Model adapters, persistence, user interfaces, and most tool implementations belong to the deployment; personas, visible tools, live policy, and cleanup often belong to one agent. +One application needs to share infrastructure across many agents while giving each agent a coherent local world. Model adapters, persistence, user interfaces, and most tool implementations belong to the deployment; personas, visible tools, live policy, event listeners, and cleanup often belong to one agent. -This is a composition problem, not an application-isolation problem. A separate service graph per agent duplicates too much shared infrastructure, while one global registration graph lets agent-specific contributions leak across agents. +A separate service graph per agent duplicates shared infrastructure. One global registration graph has the opposite failure: an agent-specific tool, prompt section, restriction, or listener can leak into unrelated agents. Contributors need one way to compose local behavior without learning a different registration API for every service. -| Question | Required behavior | Failure without it | -|---|---|---| -| What participates? | Each operation sees deployment-global contributions plus the contributions for its agent | A child-only tool, prompt, or listener affects unrelated agents | -| When does that world exist? | The complete agent world appears only after setup and remains until work and cleanup reach quiescence | Observers see partial setup, or final work loses its scoped policy | -| Which value is authoritative? | Validation, execution, logging, and observation use the same accepted data | Mutable inputs pass one check and produce different behavior later | -| What may extensions override? | Ordinary middleware stays extensible, while a few protocol invariants finish at owner-controlled boundaries | Listener order removes required prompt state, re-allows denied work, commits a failed result, or forces an extra model step | - -In-process subagents expose all four requirements at once. Two concurrent children can request different personas, tool filters, and structured-result schemas; each child must receive its own complete view, publish only after that view exists, preserve the exact accepted request, and keep terminal structured-output rules stronger than unrelated middleware. +The mechanism also needs a clear lifetime. An agent must not become visible before its local registrations exist, and final loop work must not lose those registrations before it settles. Parent-owned subagents make both failures easy to trigger because several differently configured agents can exist concurrently inside one application. ## Decision -Every live agent owns one flat registration layer through `agent.ctx`. Four matching rules make that layer coherent: registration and dispatch select the agent view, lifecycle publishes and revokes the view transactionally, acceptance transfers caller data into owner-controlled records, and four narrow owner-final checkpoints preserve invariants after extensible middleware. +Every live agent owns one flat registration layer through `agent.ctx`. Code registers through the context that owns the contribution; scope-aware services resolve deployment-global registrations plus exactly one matching agent layer; scoped events route by the operation's real agent; and the layer is published and revoked with the agent lifecycle. -| Governing question | Decision | Guarantee | +A Cordis **context** is the object through which code accesses services and registers owned effects. The [Cordis primer](../../../cordis-primer.md) explains the framework beyond that concept. + +The contract has four parts: + +| Contributor question | Contract | +|---|---| +| Where do I register agent-local behavior? | Use the ordinary service API through `agent.ctx` | +| What does an agent see? | Deployment globals plus its own layer, with service-specific merge rules | +| Which scoped listeners run? | By default, unscoped listeners plus listeners for the operation's agent; an explicit global-listener exception is described below | +| How long does local behavior exist? | Assembled during unpublished setup, observable only after creation succeeds, and retained through quiescent teardown | + +The scope is deliberately flat. Resolution never walks parent or sibling scopes. Parent ownership links lifetimes without importing registrations. + +The companion [runtime-design RFC](2026-07-12-agent-scope-runtime-design.md) explains how the implementation preserves this contract under Cordis dispatch, JavaScript mutation and reentrancy, asynchronous setup, rollback, and racing disposal. + +### Registration origin selects visibility and cleanup + +A contribution made through a plain plugin context is deployment-global and is disposed with that plugin. The same method called through `agent.ctx` contributes only to that agent and is disposed with the agent scope. + +| Registration origin | Registration layer and default audience | Disposed with | |---|---|---| -| What participates? | Resolve deployment globals plus exactly one agent layer; route scoped events by the operation's real agent | Data and behavior use the same flat agent view | -| When does it exist? | Treat scope, session, registry entry, and driver as one caller- and agent-factory-owned transaction | Setup is unpublished; teardown drains before revocation | -| Which value is authoritative? | Read caller-owned fields once, validate that capture, and retain only owner-controlled identities or snapshots | Checked, executed, logged, and observed values cannot diverge | -| What may extensions override? | Keep waterfalls for cooperation, then place prompt protection, monotonic guards, final result observation, and terminal turn stopping at service-owned boundaries | Extension ordering cannot undo protocol invariants | +| Plain plugin context | Deployment-global; eligible for every agent view, subject to service merge and restriction rules | Registering plugin | +| `agent.ctx` | Agent-local; visible to that agent by default | Agent scope | -The scope is deliberately flat. An agent resolves deployment-global registrations plus its own registrations; it never traverses parent or sibling scopes. Parent ownership links lifetimes without importing the parent's registration layer. +This applies to tools, prompt sections and variables, restrictions, protections, guards, and scoped event listeners. Named scoped values ordinarily shadow same-named global values; an owning service may reserve a protected name and reject the shadow instead. Duplicate names within one layer fail. Event listeners have the explicit `{ global: true }` audience exception described below. -This is a composition boundary, not an authority boundary. Agent scopes compose trusted in-process registrations; they do not sandbox plugins or define a parent-to-child authority lattice. A plugin holding a Cordis context runs in the same process and can call the services injected into that context. Scope selection answers which registered contribution participates and who cleans it up, not whether a child can do no more than its parent. - -The detailed consequences for tool filters, future global registrations, and child-local tools appear under [the tool-view contract](#the-tool-view-is-live-and-executable). Security hardening requires a separate authority representation and enforcement boundary. - -### Worked example: one agent-local reviewer - -Agent setup uses ordinary registration methods through `agent.ctx`; the context determines visibility and cleanup together. In these focused examples, `ctx` is a plugin service context, `setup(agentCtx)` receives the unpublished agent's scoped context, and helpers such as `AgentId`, `SessionId`, and `CallId` construct opaque IDs. - -Assume the deployment already registered global `read` and `bash` tools. This creates a reviewer whose persona, filtered global tools, and reporting tool exist only for that agent and disappear with its handle: +The public pattern is ordinary registration inside `setup`: ```js const reviewSummaryTool = { @@ -66,204 +68,50 @@ const handle = await ctx.agents.create({ }) const reviewer = handle.agent -ctx.tools.get('read', reviewer) // global tool, visible -ctx.tools.get('bash', reviewer) // undefined: filtered global tool +ctx.tools.get('read', reviewer) // global and allowed +ctx.tools.get('bash', reviewer) // undefined: filtered global ctx.tools.get('review_summary') // undefined: not global -ctx.tools.get('review_summary', reviewer) // reviewer-only definition +ctx.tools.get('review_summary', reviewer) // reviewer-local await handle.dispose() -ctx.tools.get('review_summary', reviewer) // undefined: scope was unwound +ctx.tools.get('review_summary', reviewer) // undefined: scope is gone ``` -The remaining sections descend from this contract. +### The operation selects the view -## Reader model: domain terms and Cordis mechanics +Registration origin and operation subject are separate facts. Calling a read method through `agent.ctx` does not implicitly select that agent; lookup, execution, prompt assembly, and event dispatch still receive the agent or scope they act for. -Readers need four domain terms and four Cordis mechanics to follow the implementation. Readers already familiar with this codebase and Cordis can skim this section. +For example, `agent.ctx.systemPrompt.assemble()` without an assembly scope requests the global view. `ctx.tools.get(name, agent)` and `ctx.tools.execute({ ..., agent })` select that agent's tool view explicitly. This lets one shared service act for any agent without binding the service instance itself to one scope. -### Recurring domain terms +`agent.ctx.agent` is the associated agent for setup code, but it is not a general scope-selection shortcut. Contributors creating nested generic scopes use the nearest scope tag as the registration key; inheriting an `agent` property does not import the outer registration layer. -Four domain terms keep the rest of the RFC compact. A **Session** is an agent run's append-only event log, from which model history and durable replay are derived. **Lossless JSON** is the JSON subset that can be copied without changing meaning: primitives, dense arrays, and plain objects; cycles, sparse arrays, exotic prototypes, non-finite numbers, negative zero, `undefined`, `bigint`, functions, and symbols are rejected. An **end capability** is an actual callable tool implementation, whether the model sees it as a native schema or a Code Mode binding. **Code Mode** gives the model a generated SDK and a reserved `run_code` transport instead of advertising every end capability as a native wire tool. +### Scoped events follow the operation's real subject -### Four Cordis mechanics +By default, an event about agent A reaches unscoped listeners and A-scoped listeners, not B-scoped listeners; agent-less dispatch reaches only unscoped listeners. Product helpers and service-owned paths couple the routing key to the value the operation already owns—such as `ToolExecution.agent`, `ApprovalRequest.agent`, the prompt assembly scope, or the session's captured owner. Advanced code that constructs a low-level carrier or assembly context directly must keep its subject and scope fields aligned; development invariants detect mismatches, but the low-level types do not make every mismatch unrepresentable. -Contexts select service access and registration origin, fibers own effects, waterfalls provide cooperative transformation, and dispatch receivers select listeners. +Cordis listeners have one explicit exception. `{ global: true }` bypasses contextual filtering, so a listener registered through `agent.ctx` can observe other agents and subjectless dispatches while its cleanup still belongs to that agent scope. Use it only for deliberate cross-scope observation. -| Cordis concept | Meaning in this RFC | -|---|---| -| Context | The object through which a plugin reaches services and registers contributions; a derived context can carry a different registration scope | -| Fiber and effect | The runtime owner and one owned piece of setup/cleanup; disposing the fiber unwinds its effects | -| Waterfall | Ordered around-middleware whose listener calls `next()` to include downstream work and may transform or short-circuit the result | -| Dispatch receiver | The `this` object used by Cordis listener filtering; a scope carrier encodes the operation's agent key | +Registry-membership notifications remain unfiltered because they describe shared registry state rather than an operation for one agent. The generated [event catalog](../../../cordis-catalog/events.md) is the exhaustive reference for event signatures and modes. -#### Context selects both service access and registration origin +### Creation publishes after setup; disposal revokes after work stops -A Cordis `Context` is the object through which code calls services such as `ctx.tools`, `ctx.systemPrompt`, and `ctx.sessions`. A service can recover the context through which it was accessed, so the same method can register globally from a plain plugin context or locally from `agent.ctx` without adding an `agent` option to every registration API. Cordis implements contextual service access with a **traced receiver**: a proxy that carries the accessing context while forwarding calls to the concrete service object. +`ctx.agents.create()` and `resume()` construct an unpublished agent. Their optional `setup(agentCtx)` callback may await child-plugin activation and register the complete local world. During setup, neither the agent nor its session is visible in the public registries, and driving methods reject. -```js -ctx.tools.register(globalTool) -agent.ctx.tools.register(agentOnlyTool) +The returned promise resolves only after setup, ordered lifecycle notification, and loop start succeed. Setup failure or owner loss rolls the unpublished world back and releases its IDs. A caller therefore never receives a handle to a partially configured agent. -ctx.on('tools/result', globalObserver) -agent.ctx.on('tools/result', agentObserver) -``` +`AgentHandle.dispose()` performs the reverse boundary. It stops and drains the loop, preserves the session and scoped listeners through final events and flushes, detaches the agent and session, unwinds the scope, and releases IDs. Repeated or racing calls join the same completion promise. -A context also exposes the dependency view injected into the plugin that minted it. `agent.ctx` therefore carries the agent loop's deliberate service surface; it is not an ambient root context or a security boundary. +The calling Cordis context and AgentLoop are structural co-owners. Unloading either disposes the agent, so creation through a short-lived plugin context intentionally gives the agent that shorter lifetime. -#### Effects make cleanup follow ownership +Contributors should put agent-local activation inside `setup` and always dispose the returned handle. Code that needs to observe a live agent waits for `create()`/`resume()` to resolve rather than polling the registries during setup. -An effect is setup whose cleanup belongs to a fiber. Tool registration, prompt contribution, event subscription, and an agent scope are effects, so normal disposal, failure, and hot module reload all follow the same ownership graph. +## Tool restrictions resolve against a live flat view -```js -ctx.effect(() => { - const resource = openResource() - return async () => { - await resource.close() - } -}) -``` +A tool restriction filters the live deployment-global end-capability layer, after which scope-local tools are added. `allow` retains named globals, `deny` removes named globals, multiple restrictions intersect, and a hidden global tool is absent from both registry presentation and executable lookup. -Cordis also supports generator effects that nest child effects in a chosen teardown order. The lifecycle section explains why construction must become owner-visible before arbitrary callbacks run. +Filter presence is explicit: omitting a filter installs no restriction, `restrict({})` rejects, and `allow: []` deliberately hides every global end capability. -#### Waterfalls remain cooperative extension points - -A waterfall listener wraps downstream work. Calling `next()` includes the remaining listeners and base implementation; returning directly skips that downstream portion. - -```js -ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { - const downstream = await next() - return { - ...downstream, - sections: [...downstream.sections, extraSection], - } -}) - -ctx.on('system-prompt/assemble', async () => replacementAssembly) -// The direct return skips this listener's downstream/base. An outer listener -// that already awaited next() still resumes around replacementAssembly. -``` - -This flexibility is intentional for ordinary policy, but it cannot express a fact that must remain true after every wrapper and short-circuit. [Owner-final policy](#owner-final-policy-four-narrow-boundaries) adds only the four final checkpoints that need stronger semantics. - -#### Dispatch receivers select scoped listeners - -Cordis filters listeners using the dispatch receiver, the object visible as `this` inside a function-style listener. `dsh-scope` builds a receiver carrying the operation's scope key, allowing global listeners plus listeners registered for that exact key while rejecting other agents' listeners. - -The receiver is live coordination state, not durable session data. For example, `tools/result` is a live final-outcome notification, while `tool/result` is an append-only session event used for replay and model history. - -## Registration and delivery: global plus exactly one agent layer - -One scope key controls both registered data and registered behavior. Reads combine the deployment-global layer with exactly one agent layer, while scoped event dispatch admits global listeners plus the listeners for that same agent. - -Scope keys are opaque objects compared by identity; a live `Agent` is its own registration key. There is no name-based equality or parent traversal. - -### Scope mechanism: context, key, and lifetime - -The registration context selects the layer, the scope primitive binds that layer to cleanup, and the nearest scope tag—not an inherited convenience property—selects the key. - -#### The calling context selects visibility and cleanup - -A contribution made through a plain plugin context is visible to every agent and disposed with that plugin. A contribution made through `agent.ctx` is visible only to that agent and disposed with its scope. - -| Registration origin | Visible to | Disposed with | -|---|---|---| -| Plain plugin context | Every agent | Registering plugin | -| `agent.ctx` | That agent only | Agent scope | - -The table describes ordinary registrations. Cordis listeners alone have an explicit `{ global: true }` bypass: it suppresses contextual filtering, so a listener registered through `agent.ctx` can receive other agents' and subjectless dispatches while its cleanup still belongs to that agent scope. Cross-scope observation must opt into this bypass deliberately. - -Named scoped contributions shadow same-named global contributions. This is how a child persona replaces `deployment:persona` and how one agent can use a different implementation under the same tool name. Duplicate names within one layer still fail loudly. - -```text -resolveLayer(agentA): - visible = copy(global registrations) - visible.overlay(registrations from agentA.ctx) - return visible -``` - -There is no ancestor loop. Resolving for agent A never reads parent or sibling layers. - -#### The scope primitive keeps layer and owner together - -`dsh-scope` exposes only the operations needed to mint a tagged ownership layer, read its key, target dispatch, and reach quiescent cleanup. A separate `{ scope }` option on each registry could express “visible to A, disposed with B”; the scoped context makes that mismatch unrepresentable. - -| Operation | Responsibility | -|---|---| -| `createScope(context, key)` | Mount an ownership fiber and return its tagged context | -| `scopeOf(context)` | Read the nearest inherited scope key | -| `scopeTarget(subject, key)` | Build the receiver for scope-filtered dispatch | -| `Scope.dispose()` | Return one shared idempotent promise that reaches cleanup quiescence | -| `Scope.rawDispose` | Expose the exact Cordis disposer for ordered generator composition | - -`Scope.dispose()` and `rawDispose` serve different callers. Cordis raw disposers are single-shot, so a repeated raw call need not wait for an earlier asynchronous teardown; the public method follows the backing fiber's in-flight cleanup and gives racing callers the same completion promise. Generator lifecycles use `rawDispose` because Cordis recognizes nested ownership by exact disposer identity. - -The primitive has one essential shape: - -```text -createScope(parentContext, key): - fiber = mount no-op plugin under parentContext - scopedContext = derive fiber.context with nearest-scope-tag = key - - rawDispose = fiber's exact disposer - dispose = memoized operation that: - invoke rawDispose if teardown has not started - follow fiber's in-flight cleanup until quiescent - - return { ctx: scopedContext, rawDispose, dispose } -``` - -Derived contexts inherit the nearest tag. Mounting a plugin under `agent.ctx` preserves the agent scope; deliberately creating another scope replaces the tag below it. - -#### `ctx.agent` is an association; `scopeOf()` selects the layer - -`agent.ctx.agent` gives setup code convenient access to the associated agent, but the nearest scope tag remains authoritative for resolution. A nested scope can inherit the ergonomic `agent` property while replacing the registration key. - -```js -const auditKey = {} -const auditScope = createScope(agent.ctx, auditKey) - -auditScope.ctx.agent === agent // true: inherited association -scopeOf(auditScope.ctx) === auditKey // true: nearest registration key - -await auditScope.dispose() -``` - -This separation keeps the generic scope package independent of the agent package. - -### Resolution contracts preserve domain semantics - -The shared scope selects two layers, but each registry retains its own merge rules and must keep presentation, lookup, and execution coherent within the view it owns. - -#### Registries retain domain-specific merge rules - -The shared primitive answers “which layer?” and “who owns cleanup?”; each service still defines how its values combine. Prompt sections, variables, and tools use scoped-over-global shadowing by name. Tool-schema providers are additive. Tool lookup and execution receive an agent or scope explicitly, while prompt assembly receives an `AssembleContext` whose `scope` selects the layer. - -Calling a read method through `agent.ctx` does not silently choose an agent subject. For example, `agent.ctx.systemPrompt.assemble()` without an assembly scope still requests the global view. Registration origin and operation subject remain explicit, allowing one shared service to act for any agent. - -#### The tool view is live and executable - -Within `ToolRegistry`'s contribution, presentation, lookup, execution, Code Mode bindings, timeouts, inspection, and UI rendering all consume one resolved view. The registry filters the live global layer, overlays scope-local tools, and then adds reserved presentation transport when the configured mode requires it. - -```js -ctx.tools.register(readTool) -ctx.tools.register(bashTool) - -agent.ctx.tools.restrict({ allow: ['read'] }) -agent.ctx.tools.register(reviewSummaryTool) - -ctx.tools.get('read', agent) // visible global definition -ctx.tools.get('bash', agent) // undefined: filtered global definition -ctx.tools.get('review_summary', agent) // visible scope-local definition -ctx.tools.get('review_summary') // undefined: absent globally -``` - -Executing `bash` for this agent follows the same lookup and returns the ordinary unknown-tool error. A hidden global implementation therefore cannot remain callable through a second registry. - -Final prompt assembly remains extensible beyond `ToolRegistry`. A lower-level `systemPrompt.tools()` provider or assembly listener may add an unrelated wire schema; that extension then owns the matching executable behavior and ordering. The one-view guarantee covers the registry-owned schemas, SDK bindings, lookup, execution, and presentation—not arbitrary schemas contributed elsewhere. - -A restriction filters only the global end-capability layer. `allow` keeps named global tools, `deny` removes named global tools, multiple restrictions intersect, and scope-local tools are merged afterward. The filter values are captured when registered, but resolution uses the live global registry: - -Filter presence is explicit: omitting a filter installs no restriction, `restrict({})` rejects as ambiguous, and `allow: []` deliberately hides every global end capability. +Because globals are live, allow- and deny-lists intentionally differ when a new global tool appears: ```text at time 0: @@ -276,902 +124,48 @@ after registering global tool web: allow { read } view = { read } ``` -The flat child relationship follows directly: +Scope-local tools are merged after the filter. A local tool can therefore exist even when it is absent from an allow-list over globals. This is composition behavior, not an authorization promise. -```text -global tools = { read, bash } -parent restriction = allow { read } -parent scoped registrations = { delegate } -child restriction = none -child scoped registrations = { deploy } +Reserved Code Mode presentation is not part of the filterable end-capability layer. The [Code Mode RFC](../feature/2026-06-15-code-mode.md) owns the `run_code`, SDK, `toolOrder`, and presentation-versus-execution contracts; contributors changing Code Mode behavior follow that decision rather than inferring new authority semantics from agent scope. -visible(parent) = { read, delegate } -visible(child) = { read, bash, deploy } -``` +## Security and authority are explicit non-goals -Through `delegate`, the parent can ask the child to perform work with `bash` or `deploy`. This is why registration scope is not an authority ceiling. A deployment that needs parent-to-child non-escalation requires a separate authorization model, including authority representation, propagation, and execution checks. +Agent scopes compose trusted in-process registrations. They do not sandbox plugins, define a parent-to-child authority lattice, freeze a creation-time grant set, or guarantee that a child can do no more than its parent. A plugin holding a Cordis context runs in the same process and can call the services injected into that context. -`run_code` is a reserved presentation transport rather than an end capability. Restrictions cannot remove it, scope-local tools cannot shadow it, and configuration cannot explicitly allow or deny it. In Code Mode the transport remains available while its generated SDK contains only the end capabilities visible to the agent. Without that exception, a filter could leave SDK declarations in the prompt but remove the only invocation path. +A parent can own a child whose visible tool set is wider than its own. For example, a parent restricted to global `read` can spawn a child with no restriction; the child then sees later global tools plus its own local registrations. The parent owns the child's lifetime but does not donate or cap the child's registration layer. -Two similarly named checks use different universes. `ToolRegistry.knownNames()` exposes the pre-restriction end-capability set so a misspelled restriction fails loudly. The system-prompt provider validates `toolOrder` against a mode-specific set: native mode accepts end capabilities, both mode accepts end capabilities plus `run_code`, and code mode accepts only `run_code`. Filtering one agent's view does not turn a valid deployment-wide order into a configuration error. +Deployments that need non-escalation require a separate authority representation, propagation rule, and execution check. Authority-versus-visibility ledgers, parent-subset grants, explicit future-grant APIs, and generic capability/output/termination tags are outside this decision. -### Dispatch contract follows the operation subject +## Subagents use the same composition rule -The operation supplies the scope key, and a carrier composes that key with the subject's existing dispatch behavior. Callers cannot provide an independent routing value that might disagree with the payload. +In-process subagents are a consumer of agent scope, not a second scoping model. A child gets a fresh flat layer during unpublished setup; its persona, tool filter, structured-output protocol, and listeners are ordinary registrations through the child's context. Parent teardown, backend teardown, and manual run disposal own the child lifetime without importing the parent's registrations. -#### The operation subject selects the listener set - -An event about agent A ordinarily reaches unscoped listeners and A-scoped listeners, never B-scoped listeners. An agent-less dispatch admits only unscoped listeners. A listener registered with `{ global: true }` is the deliberate Cordis filtering bypass described above. The operation itself supplies the key; callers do not attach an independent scope that could disagree with the payload. - -| Event family | Scope source | -|---|---| -| `agent/*`, including `agent/turn-stop` | Event's agent | -| `approval/request` | `ApprovalRequest.agent` | -| Tool execution events | `ToolExecution.agent`, or no key for an agent-less call | -| `system-prompt/assemble` | `AssembleContext.scope` | -| Session lifecycle/events | Owner scope captured when the session enters the store | -| `subagent/start`, `subagent/end` | Delegating parent agent | - -Registry-membership events such as `tools/change`, `system-prompt/change`, and `SubagentProvider` added/removed events remain unfiltered because they describe shared registry state rather than one agent operation. - -```js -const seen = [] -ctx.tools.register(readTool) -ctx.on('tools/result', () => seen.push('global')) -agentA.ctx.on('tools/result', () => seen.push('A')) -agentB.ctx.on('tools/result', () => seen.push('B')) - -await ctx.tools.execute({ - callId: CallId('read-1'), - name: 'read', - arguments: {}, - agent: agentA, -}) -seen // ['global', 'A'] -``` - -Fused helpers keep values that must agree together. `agentEvents(context, agent)` uses one agent as the subject, scope key, and first event argument. `assembleContextFor(agent)` sets both prompt facts and the scope selector. The session store captures its carrier when a session enters because later appends and flushes may occur without the original agent context. - -#### The carrier preserves subject behavior - -Function-style listeners receive the carrier as `this`, and agent listeners may call subject methods. The carrier is therefore a proxy that selects listeners while reading, writing, and invoking through the real subject. - -The implementation uses a dedicated surrogate proxy target with an immutable composed-filter slot. It combines the subject context's existing `Context.filter` with the scope predicate instead of replacing it. Methods bind to the real subject; callable carriers preserve call and construct shape; descriptor queries normalize configurable flags as required by Proxy invariants; and definitions through the carrier require an explicitly configurable descriptor. Stable built-in references protect the composed filter from accidental `.call` replacement. - -Those mechanics preserve observable JavaScript behavior, including private-field method identity: - -```js -class Subject { - #count = 0 - increment() { this.#count += 1 } -} - -const subject = new Subject() -new Proxy(subject, {}).increment() // TypeError: proxy lacks Subject's private identity - -const carrier = scopeTarget(subject, subject) -carrier.increment() // works: method is bound to subject -carrier === subject // false: carrier has distinct identity -``` - -Together these constraints keep listener selection correct while preserving the subject behavior listeners expect. - -The TypeScript-only `Scoped` marker requires a carrier at typed dispatch sites. Runtime marks and development invariants cover JavaScript, casts, and direct Cordis dispatch; they detect routing mistakes but do not confine hostile same-process code. - -## Lifecycle: compose privately, publish once, tear down in reverse - -Scope, session, registry entry, and driver form one transaction with two owners. Request fields are captured first; AgentLoop tracking and both identity reservations precede asynchronous work; the caller owns the prepared lifecycle before setup; publication proceeds in synchronous observable phases; and every teardown path reaches one reverse-order quiescence boundary. - -Two services split the public API from the implementation. `AgentRegistry`, reached as `ctx.agents`, stores live agents and is the front door for `create()` and `resume()`. Its registered `AgentFactory` is concretely implemented by `AgentLoop`, which constructs and drives agents using its own injected dependencies. The rest of this section calls that concrete co-owner the **AgentLoop factory**. - -| Phase | Public state | Ownership fact | -|---|---|---| -| Reserve | IDs unavailable to competitors | AgentLoop tracking and exact reservations cover the next await | -| Prepare or load | Persistence data is loading, or session, scope, and driver exist privately | Resume's load sentinel covers persistence; the complete caller lifecycle covers setup | -| Setup | `setup(agent.ctx)` may await and register | Neither ID is published | -| Publish and start | Session, agent, and lifecycle notifications appear in order | Liveness is checked between observable phases | -| Dispose | Driver drains, registries detach, scope unwinds, IDs release | All owner paths join one completion promise | - -The public lifecycle is simple: - -```js -const setupGate = Promise.withResolvers() -const agentId = AgentId('reviewer') -const sessionId = SessionId('reviewer-session') -const creating = ctx.agents.create({ - agentId, - sessionId, - agentOptions: { model: 'model-name' }, - async setup(agentCtx) { - await setupGate.promise - agentCtx.systemPrompt.section({ - name: 'deployment:persona', - order: 0, - text: 'Review the change.', - }) - }, -}) - -ctx.agents.get(agentId) // undefined during setup -ctx.sessions.get(sessionId) // undefined during setup -setupGate.resolve() - -const handle = await creating -ctx.agents.get(agentId) === handle.agent -ctx.sessions.get(sessionId) === handle.agent.session - -await handle.dispose() -ctx.agents.get(agentId) // undefined after quiescent teardown -ctx.sessions.get(sessionId) // undefined after quiescent teardown -``` - -### Reservations precede awaiting; lifecycle ownership precedes setup - -AgentLoop tracking and exact identity reservations precede the first await. Resume adds a caller sentinel across persistence loading; create and resume both establish the complete caller-owned lifecycle before invoking setup. - -#### The prepared lifecycle is owned before setup callbacks - -The caller context owns the work it requested and receives the consumer-facing `AgentHandle`. The AgentLoop factory is a structural co-owner because a live agent continues to depend on its injected services. Either owner can deactivate the transaction; both converge on the same lifecycle disposer. - -| Owner mechanism | Covers | Retires when | -|---|---|---| -| Caller lifecycle sentinel | Caller-fiber loss from lifecycle preparation through live lifecycle | Shared lifecycle reaches quiescence | -| Resume load sentinel | Caller-fiber loss across persistence load and lifecycle handoff | Load rollback or the adopted lifecycle reaches quiescence | -| AgentLoop tracker | AgentLoop unload and structural dependency loss | Transaction and lifecycle settle | -| ID reservations | Competing agent/session insertion | Ordered teardown releases both IDs | - -A **sentinel** is an owner-visible effect that follows work whose final disposer is not yet available. It adopts the exact reservation disposers immediately, then follows the complete lifecycle disposer once preparation establishes it. - -Cordis must make construction owner-visible before setup can reenter teardown. An effect's cleanup wrapper enters its owner list before its setup body runs, a child fiber receives its parent-owned disposer before Cordis's child-plugin notification (`internal/plugin`) announces it, and a fiber already unloading rejects new effects after taking its cleanup snapshot. Teardown observers are contained independently so one callback cannot starve peers or interrupt cleanup. These are domain-neutral lifecycle rules; `dsh-scope` uses them by mounting a no-op plugin fiber as the ownership bucket for one scope. - -#### Caller ownership and factory dependency lookup stay separate - -Factory delegation carries two contexts because ownership and dependency origin are different facts. `ownerCtx` is the caller-bound context whose fiber and optional scope own the requested lifecycle. The factory method receiver is the accepted factory traced through that access so the concrete service retains its own injected dependency view. - -```text -callerCtx.agents.create(options) - ownerCtx = context carrying callerCtx's fiber and scope - factoryThis = concrete accepted factory traced through ownerCtx - Reflect.apply(capturedCreateAgent, factoryThis, [ownerCtx, options]) -``` - -`setFactory()` captures the concrete target and its `createAgent` and `resume` callbacks once. It canonicalizes an already traced service before retracing, avoiding a second proxy layer that would break raw-identity state. Plain factory objects receive the explicit `ownerCtx` without depending on Cordis tracing. - -#### Create and resume reserve identities before awaiting - -Programmatic create and resume reserve both agent and session IDs before any operation can await. Create prepares a new or seeded session; resume loads persisted data while a caller sentinel and AgentLoop load tracker already own the interval in which no `Agent` object exists. - -Reservations are capabilities, not advisory sets. Setup code cannot reserve, prepare, create, register, or enter a substitute under the same IDs. A session reservation prepares at most one exact object, and publication requires the matching factory-held capabilities. A failed or abandoned transaction therefore cannot publish a substitute or wedge an ID indefinitely. - -Resume transfers ownership rather than opening a gap: - -```text -resume(ownerCtx, request): - snapshot request identity, options, and setup callback - reserve agentId and sessionId - install caller sentinel adopting both reservation disposers - track load under AgentLoop - - persisted = await firstOf(persistence.load(sessionId), deactivated) - session = sessionReservation.prepare(reconstruct persisted data) - starting = startOwned(ownerCtx, session, reservations, setup) - caller sentinel follows starting.dispose - return await starting.result -``` - -If deactivation wins, a backend load may still settle internally but has no path back to publication. Preparation failure still returns a rollback-backed lifecycle result, so both owners can wait for actual cleanup instead of mistaking a rejected async result for successful installation. - -### Setup composes an unpublished world - -`setup(agentCtx)` may register tools, prompt state, restrictions, listeners, protections, or child plugins and may await their activation. The new agent is available as `agentCtx.agent`, but neither agent nor session is visible in its global registry. - -The complete rollback skeleton exists before setup runs. If setup throws, rejects, or loses either owner, the scope and prepared resources unwind and the IDs become reusable. After setup settles, a microtask checkpoint and liveness checks let a same-turn owner unload win before publication. - -Setup composes but cannot drive. `send`, `steer`, `inject`, and `cancel` reject until publication reaches the session-start boundary. The driver lock and inbox use runtime-private state, and only factory-held controls enable and start the loop; JavaScript casts cannot call a public start method or write directly into the queue. - -```text -startOwned(ownerCtx, snapshot, preparedSession): - world = prepareLifecycleWithCompleteRollback(ownerCtx, snapshot, preparedSession) - - result = async: - require world active - await firstOf(snapshot.setup(world.agent.ctx), world.deactivated) - await oneMicrotask() - require caller, factory, owner fiber, and owner agent still active - world.publish(snapshot.source) - return handle(world.agent, world.dispose) - - on any error: - await world.dispose() - rethrow -``` - -### Publication is ordered, observable, and rollback-covered - -Publication is one synchronous sequence with liveness checks between three observable notification phases. Both registry entries exist before the first listener runs, but driving stays locked until immediately before `agent/session-start`. - -1. Enter the session store and capture its scope carrier. -2. Enter the agent registry without announcing it. -3. Recheck caller and factory liveness. -4. Emit `session/created`. -5. Recheck liveness. -6. Emit `agent/created`. -7. Recheck liveness. -8. Enable driving. -9. Emit `agent/session-start`. -10. Recheck liveness. -11. Start the driver. - -```text -publish(world): - world.beginSynchronousPublication() - try: - world.detachSession = sessions.enter(world.session, sessionReservation) - world.detachAgent = agents.enter(world.agent, agentReservation) - require callerAndFactoryActive - sessions.announce(world.session) - require callerAndFactoryActive - agents.announce(world.agent) - require callerAndFactoryActive - world.driver.enableDrivingVerbs() - emitNonVetoing(agent/session-start) - require callerAndFactoryActive - world.driver.start() - finally: - world.endSynchronousPublication() -``` - -#### Creation is paired, not atomic - -Observers run between publication steps, so the sequence is not described as atomic. Effects already performed by an earlier listener cannot be retracted if a later listener throws. Instead, each registry marks a creation announcement as begun before dispatch and emits exactly one matching disposal edge during rollback. An entered object that was never announced has no disposal notification because no observer was told it existed. - -A detach requested during `session/created` or `agent/created` is deferred until that dispatch unwinds. Stable captured carriers and exact-object guards prevent a later listener from observing `disposed` before `created` or a stale detach from deleting a replacement with the same ID. The outer publication barrier likewise prevents caller or AgentLoop teardown from removing the other registry entry or unwinding `agent.ctx` while an announcement remains on the stack. - -Creation listener synchronous throws remain vetoes. Returned promise rejections are observed and logged but not awaited: publication has no asynchronous gap in which such a result could roll back safely. Disposal notifications and `agent/session-start` are non-vetoing and independently contain both synchronous throws and returned-promise rejections so one listener cannot block cleanup or later observers. - -### Teardown stops work before revoking registrations - -Every owner path reaches one memoized reverse-order transaction. It marks the lifecycle inactive, waits for an in-progress synchronous publication phase, stops the driver through actual exit and final durability work, detaches the agent and session, unwinds the scope, and releases IDs last. - -Final turn events, the turn-ending flush, and any outstanding session flush started while the agent was idle therefore run while the session and scoped listeners still exist. `agent/disposed` observes an already quiescent and unregistered concrete agent while its session remains live; `session/disposed` follows after event feed detachment and store removal. Both use the stable carrier captured for their matching creation edge. - -```text -disposeOwnedAgent(world): - mark world inactive - await world.synchronousPublicationIfRunning() - await world.stopDriver() # loop exit plus agent-started flushes - world.detachAgent() - world.detachSession() - await world.scope.dispose() - world.releaseSessionReservation() - world.releaseAgentReservation() -``` - -`AgentHandle.dispose()` gives repeated and racing consumers the same completion promise. The lifecycle-long caller sentinel follows that promise even when handle disposal wins first, while the AgentLoop ledger independently stops new transactions and waits for every structurally dependent agent before the service disappears. - -AgentLoop co-ownership follows dependency shape, not a blanket “creator owns every returned value” rule. An AgentLoop-created agent continues to depend on the loop's services, so AgentLoop unload stops it. - -## Boundary ownership: accept once and own the accepted value - -Acceptance-sensitive boundaries that cross asynchronous, reentrant, model-visible, or durable-log code read caller-owned fields once and retain only owner-controlled identities or snapshots. This rule is independent of TypeScript: `readonly` annotations vanish at runtime, and JavaScript accessors can return a different value on every read. - -The shared shape distinguishes identity-bearing references from data. Agent objects and abort signals are retained by identity after one read. Boundaries whose contract requires lossless JSON—such as session events and subagent payloads—validate and materialize it in one traversal; other boundaries use their own owned representation, such as `structuredClone` for agent options. Scalars and callbacks are captured once, then each boundary applies the validation promised by its API before downstream use. - -```text -accept(input): - read every relevant top-level field exactly once - retain identity-bearing references without rereading them - validate acceptance-time fields from those captures - copy or pin data in the representation owned by this boundary - bind accepted callbacks once when method receiver state is intentional - expose only owner-controlled identities, frozen records, or detached results -``` - -Capture does not imply uniform eager callback type-checking. Agent `setup` is captured once and any invocation failure enters rollback; a tool guard is likewise captured, and an invalid cast becomes a normalized execution error. The invariant is that later work never rereads caller fields to choose a different value. - -| Boundary | Identity retained | Data detached or pinned | -|---|---|---| -| Tool and `SubagentProvider` registration | Original callback receiver | Name, flags, schemas, scalar config | -| Agent create/resume | Caller context, setup callback | IDs, options, session metadata and seed | -| Approval request | Agent and abort signal | Tool name, call ID, and reason | -| Tool execution | Agent, signal, registry-minted parent token | Call identity and arguments | -| Session append/load | Session identity | Header and event envelopes | -| Subagent start/result | Parent and signal | Prompt, filters, schema, options, result | - -Before agent setup can run, the concrete agent pins its accepted ID, options, and session and binds `ctx` once. Registry detach closures likewise close over their accepted keys instead of rereading mutable public fields. - -A stateful getter shows why validation and ownership must use the same capture: - -```js -let reads = 0 -const input = { - get name() { - reads += 1 - return reads === 1 ? 'safe_tool' : 'different_tool' - }, -} - -// Wrong: validation and storage observe different values. -validateName(input.name) -storeName(input.name) - -// Right: one accepted value drives both. -reads = 0 -const acceptedName = input.name -validateName(acceptedName) -storeName(acceptedName) -``` - -### Registered definitions are frozen snapshots - -Tool registration creates the stored definition identity once; changes occur through explicit unregister/register effects rather than mutation of a caller-retained object. Parameters are materialized in one traversal, callbacks bind once to the accepted definition receiver, and the stored record is deep-frozen. - -The first-party `defineTool()` helper applies the same boundary before registration. It captures each option once, materializes the authoring `SchemaSpec`, and derives both the wire schema and later execution/presentation validation from that owned spec. - -```text -defineTool(options): - accepted = read each option exactly once - parameterSpec = snapshotLosslessJson(accepted.parameters) - wireSchema = snapshotLosslessJson(convertToJsonSchema(parameterSpec)) - build execute and presentation validation over parameterSpec - -registerTool(context, definition): - accepted = read each definition field exactly once - stored = deepFreeze({ - accepted name, description, timeout, - parameters: snapshotLosslessJson(accepted.parameters), - execute: bind accepted.execute to definition, - presentation callbacks: bind accepted callbacks when present - }) - layerFor(scopeOf(context)).add(stored.name, stored) -``` - -`get()` and `visible()` return the frozen stored definitions; `schemas()` returns detached projections. Replacing `definition.execute` after registration has no effect, while a callback can deliberately read live state from its closure or original receiver. - -Factory and backend registration use different reentrancy orderings around the same ownership rule. `AgentFactory` registration claims its single slot before reading callback accessors. `SubagentProvider` registration first snapshots the provider fields, then its effect checks and enters the accepted name. Both capture callback identity and intentional receiver state once, and hot-reload cleanup closes over the accepted slot or key instead of rereading a mutable public property. - -### Durable session data belongs to the session - -The session pins its ID and detached, deep-frozen header. Seed and append paths materialize lossless JSON once, validate the event envelope and message-history metadata against that owned record, and deep-freeze the exact accepted event. `session.events` returns a frozen snapshot that never grows later. - -The store keeps append observers, accepted registry IDs, and scope carriers in private owner state rather than caller-writable fields. Outside JavaScript therefore cannot rename a stored session, redirect `session/event`, or mutate an earlier snapshot into newer history. - -Approval requests follow the same async boundary at smaller scale: one capture preserves exact agent/signal identities, copies scalar fields, captures the session once, and drives `approval/asked`, scoped policy, cancellation, and `approval/decided` from that record. - -### Tool execution has pipeline-owned identity - -`ctx.tools.execute(input)` turns caller-owned input into one pipeline-owned `ToolExecution`. It first reads `callId` and `name` once and requires strings; a failure there rejects because even an error result would lack trustworthy correlation identity. Once those strings are accepted, later input failures can become normal final error outcomes. - -Arguments are materialized once and deep-frozen. The registry assigns a frozen property-free `ToolExecutionToken`; callers cannot choose it. `token`, `callId`, `name`, `arguments`, `agent`, and optional opaque `parent` token become non-writable and non-configurable before policy. `signal` is the only operational field an around-dispatch wrapper may replace or remove. - -```text -prepareExecution(input): - callId = read input.callId exactly once - name = read input.name exactly once - require both are strings - - accepted = read arguments, agent, parent, and signal exactly once - require parent is absent or a registry-minted token - arguments = deepFreeze(snapshotLosslessJson(accepted.arguments)) - - execution = { - token: new frozen property-free object, - callId, name, arguments, - agent: accepted.agent, - parent: accepted.parent, - signal: accepted.signal - } - protect every field except signal - return execution -``` - -Stable execution identity prevents middleware from changing which tool or scope policy accepted. It also gives structured-output commit a safe `WeakMap` key when an adapter reuses a string call ID. Code Mode correlates an SDK sub-call with its enclosing `run_code` using only the outer execution's opaque token, never a mutable reference to the live outer object. - -Result boundaries apply the same ownership rule. Each transform returns data that is captured field-by-field, validated, materialized, and ultimately deep-frozen for final observers; malformed outcomes normalize to JSON-safe error results rather than reaching the session log as apparent success. - -## Owner-final policy: four narrow boundaries - -Waterfalls remain the ordinary extension mechanism; each of four protocol invariants runs after the last extension point capable of violating that specific invariant. Each owner-final API has the weakest one-way power that can preserve its guarantee. - -Here **canonical** means the named registry or tool-schema-provider output assembled before the waterfall—not “all output the service approves.” Protection restores only the names its owner declares. - -| Invariant | Cooperative extension point | Owner-final boundary | Guarantee | -|---|---|---|---| -| Named prompt/tool contribution | `system-prompt/assemble` waterfall | `systemPrompt.protect()` finalization | Canonical presence, absence, definition, and local anchor survive | -| Non-overridable tool denial | `tools/pre-execute` allow/deny/ask waterfall | Synchronous `tools.guard()` | A denial cannot become allow | -| Authoritative live outcome | Execute and post-execute waterfalls | Awaited `tools/result` notification | Observers receive one immutable final result | -| Terminal protocol completion | Continuation waterfall and pending steering | Serial `agent/turn-stop` | No middleware or late steering creates another step | - -### Prompt protection restores named canonical contributions - -`systemPrompt.protect({ sections, tools })` snapshots the requested names and restores their canonical registry or tool-schema-provider output after the complete assembly waterfall. Global and matching scoped protections compose by set union; a waterfall failure still fails assembly rather than triggering recovery. - -Protection covers both presence and absence. If the canonical assembly omits a protected name, finalization removes a listener-fabricated entry; this is how Code Mode keeps a native schema absent while preserving the SDK/transport form. Tool providers likewise expose one captured coherent record for schemas and optional known names, so a stateful getter cannot validate one name and display another. - -#### Global section protection reserves its name - -A globally protected section name cannot be shadowed by a scoped section. Scoped registration under an already protected name fails, and adding protection fails if a scoped shadow already exists. This check occurs before assembly because scoped-over-global merge would otherwise make the shadow itself appear canonical. - -Tool-schema protection does not create a blanket reservation for unrelated schema names. Providers are additive and may deliberately contribute other executable schemas; the owner-final guarantee covers only the named canonical contribution. - -#### Restoration preserves a useful local anchor - -Protection does not reset the whole assembly. It removes protected names from the waterfall result and reinserts each canonical entry before the first surviving later unprotected canonical neighbor, or at the end if none survives. Unprotected entries retain the order and definitions chosen by middleware. - -```text -assemble(context): - assembly = assemble registries for context.scope - canonical = snapshot protected section/tool inputs - transformed = await systemPromptAssembleWaterfall(assembly) - - for each protected canonical name: - remove every transformed entry with that name - if canonical includes the name: - insert before first surviving later canonical neighbor, else append - - return transformed -``` - -Code Mode globally protects `tools:sdk` and reserved `run_code`; structured output adds scoped protection for its instruction and capture schema. - -### Tool guards deny monotonically - -`ctx.tools.guard()` installs a global or scoped synchronous check after the complete `tools/pre-execute` waterfall and before dispatch. A guard returns a denial reason or `undefined`; it has no allow result. - -Pre-execute hooks still compose ordinary allow, deny, and ask decisions. An ask resolves through the optional approval service, where only `allowed-once` becomes allow and absence or any non-grant becomes deny. Guards run afterward, so listener order cannot convert their denial into dispatched work. - -```js -agent.ctx.on( - 'tools/pre-execute', - async () => ({ kind: 'allow' }), - { prepend: true }, -) - -agent.ctx.tools.guard(execution => - execution.name === 'bash' - ? 'reviewer agents are read-only' - : undefined, -) -``` - -Even a later prepended allow listener cannot bypass the guard. A denied call still becomes an error outcome that flows through result transformation and final observation. - -### `tools/result` observes the final live outcome - -The live pipeline is `tools/pre-execute` → guards → `tools/execute` → `tools/post-execute` → `tools/result`. The first, execute, and post stages are transformable waterfalls; `tools/result` is an awaited observe-only notification after every transform and outer error normalization. - -Every observer receives the same frozen execution and a separate deep-frozen snapshot of the owned result returned to the caller. Listener failures are contained independently, so they cannot change that returned result or starve peers. Routing uses `execution.agent`. - -`tools/result` is not the durable `tool/result` session event. The live notification also fires for direct programmatic executions and is the source of truth for in-process commit logic. The agent loop later appends the durable event for replay, UI reconstruction, and model history. - -```text -execute(input): - accept trustworthy callId and name - try to prepare pipeline-owned execution - on preparation failure: - create an identity-bearing error shell - ownedResult = owned error result - freeze execution - observerResult = deepFreeze(snapshotLosslessJson(ownedResult)) - await every tools/result observer independently with observerResult - return ownedResult - - gate = await tools/pre-execute(execution) - resolve ask through approval when needed - denial = policy denial or first guard denial - - if denied: - result = errorResult(denial) - else: - result = await tools/execute(execution, dispatchRegisteredTool) - - result = await tools/post-execute(execution, result) - ownedResult = normalize into owned lossless JSON - freeze execution - observerResult = deepFreeze(snapshotLosslessJson(ownedResult)) - await every tools/result observer independently with observerResult - return ownedResult -``` - -Waterfalls transform only at their named stages; guards only deny; final observers only observe. - -### `agent/turn-stop` makes continuation terminal - -Steering is input for another model step inside the current turn; queued prompts wait for a future turn. Ordinary continuation remains extensible: the loop computes a default, runs `agent/turn-continuation`, records any force-continue reason as steering, and treats pending steering as a reason to continue. - -The scoped serial `agent/turn-stop` checkpoint runs after that folding. A listener returns `{ action: 'stop' }` or abstains with `undefined`; malformed values and throws close the current turn with an error. A stop is terminal, so later listeners and steering cannot restore continuation. - -The loop uses `strictSerial` because ordinary Cordis serial dispatch treats `null` and `false` as abstentions. This terminal protocol permits only `undefined` to abstain, making accidental return values fail closed. - -Terminal state remains active through `turn/end` and the durability flush. Steering added by continuation, turn-close, or flush listeners is discarded after a terminal stop, while the ordinary queued-prompt FIFO remains untouched. - -```text -afterSuccessfulStep(turn): - decision = await agent/turn-continuation(defaultDecision) - record decision.reason as steering when present - if steering is pending: decision = continue - - terminal = await strictSerial(agent/turn-stop) - if terminal == stop: - discard steering - terminalStopped = true - decision = stop - - append turn/end - await session/flush - - if terminalStopped: - discard steering added by turn/end or flush listeners - else: - move leftover steering to the next-turn queue -``` - -This stronger control is reserved for terminal protocols such as a completed structured child; ordinary continuation policy remains cooperative. - -## Subagents: the composition proof - -In-process subagents add no second scoping model. They create a fresh flat child scope during unpublished setup, install ordinary scoped persona/filter/protocol registrations, own the child through a run handle, and use the same owner-final checkpoints for structured output. - -The roles and phases are explicit: - -| Role | Responsibility | -|---|---| -| Caller | Supplies parent, prompt, optional child configuration, and eventual disposal | -| `SubagentService` | Validates capabilities, owns the public wrapper, normalizes result and lifecycle telemetry | -| `SubagentProvider` backend | Chooses transport and creates one run | -| In-process driver | Owns child creation, setup, prompt drive, result read, cancellation, and teardown | -| Child `Agent` | Uses the ordinary agent lifecycle and its fresh `agent.ctx` | - -```text -accepted start -> started (published) -> result (settled) -> dispose (quiescent) -``` - -Assume the in-process `spawn` backend uses its default name, `parent` is top-level, and global `read` exists: - -```js -const run = ctx.subagents.start('spawn', { - parent, - prompt: [{ type: 'text', text: 'Review this change.' }], - persona: 'You are a careful code reviewer.', - toolFilter: { allow: ['read'] }, - maxDepth: 2, - outputSchema: { - type: 'object', - properties: { summary: { type: 'string' } }, - required: ['summary'], - additionalProperties: false, - }, -}) - -try { - await run.started - const result = await run.result - // result.structured exists only after successful final commit. -} finally { - await run.dispose() -} -``` - -### The child world uses ordinary registrations - -A child persona is a scoped `deployment:persona` section. Its tool filter is a scoped restriction over the live global tool layer. Structured output is a bundle of scoped tool, prompt, protection, guard, and listener registrations. - -```js -let structured -const setup = childCtx => { - if (persona !== undefined) { - childCtx.systemPrompt.section({ - name: 'deployment:persona', - order: 0, - text: persona, - }) - } - if (toolFilter !== undefined) childCtx.tools.restrict(toolFilter) - if (schema !== undefined) { - structured = attachStructuredRuntime(childCtx, schema) - } -} -``` - -The driver creates one run-owner fiber under `parent.ctx` and calls the child factory through it. Parent teardown, `spawn` backend teardown, and manual run disposal reach the same node, but the child still receives a new registration key. Lifetime inheritance therefore does not imply registration inheritance. - -### Structured output is a child-owned terminal protocol - -A structured child registers a real-schema `structured_output` tool and instruction in its own scope. Concurrent children can use different schemas without a global placeholder, reference count, or remove-for-everyone pass. - -Presentation mode changes the invocation route, not ownership: - -| Mode | Advertised invocation route | Canonical wire contribution | Generated SDK | Owner-final guarantee | -|---|---|---|---|---| -| `native` | Native `structured_output` | Visible native schemas, including scoped capture | None | Restore the capture schema and instruction | -| `code` | The `structured_output` SDK binding inside `run_code` | Reserved `run_code`; native capture remains absent | Visible end-capability bindings, including capture | Restore the transport, SDK, native absence, and instruction | -| `both` | Either native capture or its SDK binding | Visible native schemas plus `run_code` | Visible end-capability bindings, including capture | Restore both invocation routes and the instruction | - -Tool mode controls presentation, not an execution allowlist. In code mode, an adapter or direct caller that emits the unadvertised `structured_output` name can still resolve the scoped end capability and takes the native one-stage commit path; a deployment that must forbid that route needs an execution guard. - -An unrelated assembly listener may deliberately add another schema; named protection does not erase unrelated contributions. - -#### Native commits once; Code Mode commits twice - -The capture body validates and stages a cloned value by stable `ToolExecution` identity. The scoped final-result observer commits a native capture only if that exact execution's final result succeeds. - -A schema-validation failure becomes the ordinary `INVALID_ARGS` tool result, so the model can correct the value and call the capture tool again within the same turn. - -```text -structured_output.body(value, execution): - validate value against this child's schema - staged[execution] = clone(value) - return ordinary success - -on tools/result(execution, finalResult): - if execution is staged: - value = staged.remove(execution) - if finalResult succeeded: - captured = value -``` - -For a Code Mode SDK call, successful inner observation records a pending value against the opaque outer `run_code` token. Commit waits for the outer transport's own successful final result because an inner side effect can succeed while the program or its post-policy still fails. - -```text -on tools/result(innerStructuredCall, innerResult): - if innerStructuredCall is staged: - value = staged.remove(innerStructuredCall) - if innerResult succeeded: - pending = { outerToken: innerStructuredCall.parent, value } - -on tools/result(outerRunCodeCall, outerResult): - if pending.outerToken == outerRunCodeCall.token: - value = pending.value - pending = none - if outerResult succeeded: - captured = value -``` - -Once capture is staged against an outer transport or committed, the scoped guard denies later calls in that response. After commit, `agent/turn-stop` ends the turn after ordinary continuation and steering fold. A child that otherwise completes cleanly without a committed capture returns an error rather than being re-prompted; requesting a schema makes output mandatory, not guaranteed. - -### The run protocol separates acceptance, readiness, result, and disposal - -`SubagentService.start()` returns synchronously, but `run.started` is the publication boundary. Callers treat the child as live only after readiness, consume `result`, and always dispose the run. - -Pre-readiness cancellation of an in-process run deactivates the run-owner fiber, prevents publication, rejects `started`, resolves `result` as `aborted`, and emits neither subagent lifecycle edge. - -`SubagentProvider` registration captures name, capability flags, the `inheritsParentContext` conversation-history descriptor, and the bound start callback once. The descriptor says whether completed parent turns seed the child's conversation; it says nothing about scope, services, tools, or authority. - -Starting a run captures every request field once. Parent and abort signal remain identity references; prompt, filter, schema, and options are detached lossless JSON; fixed `persona` and absolute `maxDepth` values validate before backend ownership. The in-process backend separately snapshots its optional session seed, and the service snapshots the terminal result when it settles. - -Depth validation repeats at each public entry while one helper owns the accepted domain: - -```text -tool-subagent plugin load: - assertSubagentMaxDepth(config.maxDepth) - -SubagentService.start(request): - capture and validate request.maxDepth - -startInProcessRun(request): - capture and validate request.maxDepth - parentDepth = validated depthOf(parent) - childDepth = parentDepth + 1 - reject if childDepth is not a safe integer - reject if maxDepth exists and childDepth > maxDepth -``` - -Only `undefined` means parent depth zero. Present depth and cap values must be non-negative safe integers and must not be negative zero; derived overflow rejects even when no request cap exists. - -The service does not expose the backend-owned run handle directly. It captures `id`, `started`, `result`, and methods once; binds methods to that handle; wraps result in one detached frozen record; and installs a shared disposal promise before calling untrusted backend cleanup. Once a callable backend disposer has been captured, a malformed later field triggers rollback; if no callable disposer exists, rollback is impossible and acceptance fails immediately. A backend disposer that directly returns the wrapper's reentrant promise is rejected as a cycle instead of hanging. - -```text -startInProcessRun(backendContext, acceptedRequest): - install backend ownership - attach accepted abort signal - create run-owner fiber under accepted parent.ctx - create child through runOwner.ctx.agents with unpublished setup - - started = child creation publication - result = after started: - send accepted prompt - await child idle - derive owned terminal result - dispose = dispose run owner and await quiescence - -SubagentService.start(...): - backendRun = backend.start(detached request) - serviceRun = freeze accepted id, readiness, bound methods, normalized result - observe result immediately - after readiness: - emit subagent/start, then buffered/eventual subagent/end - on readiness failure: - emit neither lifecycle edge -``` - -The service observes result settlement immediately even while readiness is pending, preventing an early rejection from becoming temporarily unhandled. Lifecycle listeners receive one frozen payload; their throws and returned-promise rejections are contained independently and cannot veto the run. - -## Workflow integration preserves the subagent contract - -The worker workflow bridge preserves the same readiness, terminal-claim, and bounded-cleanup boundaries across a message port. It never announces an unready child, never lets cleanup rewrite an already chosen result, and never suppresses disposal merely because another terminal fact already won. - -The worker executes the workflow script and exchanges protocol messages; the host owns `SubagentService`, which invokes `SubagentProvider` backends and returns normalized run wrappers that the host retains. Their lifetimes follow dependency shape: an AgentLoop-created agent stops when its loop unloads, while a workflow run captures its holder-bound `SubagentService` at start, so unloading the workflow engine prevents new runs without revoking an already returned run. - -Three state dimensions remain separate: - -| Dimension | Question | Winning rule | -|---|---|---| -| Admission | May a worker message still start or announce a child? | Closed admission refuses the exact run and cleans it up | -| Terminal claim | Which external result does the workflow expose? | Earlier accepted external cancellation wins; otherwise first result/death claim wins | -| Physical cleanup | Which registered children and worker resources remain? | Every path may still dispose survivors through per-call gates | - -### Child admission waits for readiness - -After `SubagentService.start()` returns its normalized wrapper, the host registers that exact wrapper before awaiting, attaches result observers immediately, and rechecks admission both then and when `started` settles. A closed boundary claims cancellation and disposal for that exact entry, removes it only when disposal settles, and reports `ChildStartError` only while the worker reply channel remains open. - -The backend's nested `start()` may synchronously reenter workflow cancellation before the service wrapper reaches the host registry. The immediate post-start check and exact-wrapper identity guard close that interval; a backend that later fulfills its own readiness cannot resurrect workflow admission. - -```text -after subagents.start returns its run wrapper: - register exact wrapper for cancellation - observe and snapshot result immediately - if admission closed: refuse and clean exact wrapper - else await run.started - - on ready: - if admission closed: refuse and clean exact run - else send ChildStarted, then buffered/eventual outcome - - on readiness failure: - send ChildStartError only if the worker reply channel remains open - dispose exact wrapper if still registered -``` - -### Each terminal contender claims before its own callbacks - -Each terminal path records the state it owns before invoking its own callback fanout. External `cancel()` records the accepted cancellation reason before invoking child cancellation. On the Result path, the worker queues its `Result` message before settlement cleanup messages on the same port, and the host records the winning result before any Result-triggered abort or cancellation. Reentry therefore observes the fact that already won instead of rewriting it. - -```text -on workflow Result: - cancellationWasAlreadyAccepted = external cancellation is in flight - claim chosen result: - if earlier external cancellation and result is not cancelled: - cancelled result - else: - worker result - - if not cancellationWasAlreadyAccepted: - abort shared child-request signal - cancel every registered child through its at-most-once gate - settle chosen result -``` - -The worker may also send a later `ChildCancel`; host fanout and the worker message share one per-call cancellation gate, so an arbitrary backend's `cancel()` need not be idempotent. Each callback is contained independently. - -### Worker death, exit, and disposal remain separate - -The first worker death signal closes message admission, claims a death result unless an earlier terminal fact won, cancels and disposes registered children, and synthesizes missing lifecycle ends. A queued message can arrive between Node's `error` and `exit`, so the logical admission barrier—not physical exit—prevents late child creation or narration. - -Physical exit performs a final disposal-only sweep without repeating explicit cancellation. A cancellation grace period bounds how long the host waits for cooperative settlement before terminating the worker; a grace result can already be chosen while exit cleanup still needs to dispose surviving child handles. The bound is real: after grace expires, public disposal may return after invoking child disposal and reaping host resources even if a slow backend disposer has not reached quiescence. - -Public `handle.dispose()` claims its shared promise before invoking cancellation or child callbacks. Each `disposeChild` likewise claims its call-ID promise before invoking the backend disposer. Public-first reentry joins the public promise; worker-first reentry lets the holder traversal join the already claimed child promise. Settled `dispose()` still drives a host-side reap before awaiting quiescence, so a fire-and-forget child cannot remain alive merely because workflow result settlement already occurred. - -Together these rules ensure `workflow/agent-start` names only ready children, external result precedence is stable, and every surviving child reaches disposal. - -## Correctness enforcement - -The runtime rule is checked at four escape boundaries: API shape couples related subjects, TypeScript marks typed dispatch, development invariants inspect actual dispatch, and repository gates keep declarations aligned with enforcement. - -### API shape couples values that must agree - -`agentEvents(context, agent)` couples carrier, subject, and first event argument. `assembleContextFor(agent)` couples prompt facts with scope selection. `SessionStore.flush(session)` owns lookup of the carrier captured when the session entered. - -```text -assembleContextFor(agent): - return { agent, scope: agent } - -agentEvents(context, agent): - carrier = scopeTarget(agent, agent) - return dispatcher that always injects agent as the event subject -``` - -These helpers make a mismatch harder to express than the correct spelling. - -### Type markers cover every scoped event declaration - -Scoped agent, approval, tool, prompt, session, and subagent lifecycle events declare a `Scoped` receiver. TypeScript rejects a bare subject at typed dispatch sites, including subagent lifecycle events scoped to the delegating parent. - -The marker is compile-time only; JavaScript, casts, and direct Cordis dispatch can bypass it. - -### Development invariants inspect actual dispatch - -The invariants plugin observes Cordis's internal dispatch before listener delivery. Every scoped event requires a marked carrier, and events whose arguments expose the subject require the carrier key to be the same object. - -Session and subagent payloads do not expose their owner key directly, so their service centralizes key selection and the invariant proves carrier presence. Additional invariants reject an assembly whose `agent` and `scope` disagree and a turn opened before `agent/session-start`. - -Dedicated `dsh-scope` unit tests cover the carrier's advanced Proxy behavior: private-field method binding, call/construct shape, primordial filter invocation, own-key/descriptor consistency, and explicit configurable definitions. These are implementation tests, not checks performed by the invariants plugin. - -### Repository gates keep declarations and dispatchers aligned - -`verify-scoped-dispatch` compares declared scoped events with the runtime invariant table, and the generated event matrix requires every declaration to name a recognized dispatcher. Source JSDoc generates the [event catalog](../../../cordis-catalog/events.md), which remains the exhaustive signature and mode reference. +`inheritsParentContext` describes conversation-history seeding only, not Cordis scope, service injection, tools, or authority. The [subagent capability RFC](../feature/2026-06-21-subagent-capability-seam.md) owns run usage and the provider contract, while the [runtime-design RFC](2026-07-12-agent-scope-runtime-design.md) explains in-process structured output and workflow race handling. ## Alternatives considered -The rejected designs fail one of the four governing questions: they separate visibility from ownership, choose the wrong isolation unit, expose partial lifecycle, leave accepted values mutable, or rely on extension order for invariants. +The rejected architectures either separate visibility from cleanup, scope only behavior but not registered data, duplicate shared infrastructure, or conflate parent ownership with registration inheritance. ### Pass an agent option to every registration -An API such as `tools.register(definition, { agent })` leaves global registration as the leak-by-omission default and repeats scope plumbing in every registry. It can also express “visible to A, disposed with unrelated plugin B,” which `agent.ctx` prevents. +An API such as `tools.register(definition, { agent })` leaves global registration as the leak-by-omission default and repeats scope plumbing in every registry. It can also express “visible to A, disposed with unrelated plugin B,” which registration through `agent.ctx` prevents. ### Filter events while keeping registries global -Listener filtering prevents a hook from intercepting the wrong agent but does not scope tool schemas, executable lookup, prompt sections, variables, or Code Mode bindings. Persona, tool filtering, and concurrent structured schemas would still require global mutation. +Listener filtering prevents a hook from intercepting the wrong agent but does not scope tool schemas, executable lookup, prompt sections, variables, or Code Mode bindings. Agent-local composition would still require temporary global mutation. ### Create one isolated service graph per agent -Service isolation chooses one registry instance, while agent composition needs a merged view of deployment globals plus one agent layer. Per-agent graphs duplicate adapters and force shared persistence and UI infrastructure to discover every instance. - -Independent applications still deserve separate graphs; collaborating agents inside one deployment do not. +Service isolation chooses one registry instance, while the desired view is deployment globals plus one agent layer. Per-agent graphs duplicate adapters and force shared persistence and UI infrastructure to discover every instance. Independent applications still deserve separate graphs; collaborating agents inside one deployment do not. ### Inherit the parent's registrations into a child -Hierarchical registration inheritance silently copies every parent-scoped tool and policy into the child. A flat child layer plus a parent-owned disposer separates lifetime from composition: the parent owns the child without importing its registrations. - -This choice does not create a parent-subset authority guarantee; registration scope and authorization are different designs. - -### Publish the agent before running setup - -Early publication lets setup find the agent in global registries but lets observers act on a partially configured world. Rollback can remove entries but cannot retract external effects from listeners that already ran. - -The unpublished setup callback already receives `agent.ctx` and `ctx.agent`, so early global lookup is unnecessary. - -### Allow only synchronous setup - -Synchronous setup cannot honestly compose child plugins whose activation is asynchronous. TypeScript also permits a promise-returning callback where a void return is expected, so a synchronous-looking type would not reliably contain accidental async work. - -Awaited setup makes the transaction explicit and keeps first publication and prompt assembly behind it. - -### Validate caller data, then clone it - -Validation followed by a separate clone rereads accessors, so it can approve one value and retain another. A generic JSON clone can also erase or coerce exotic prototypes and unsupported values. The lossless-JSON traversal validates and materializes one captured value in the same operation. - -### Enforce invariants with prepended waterfall listeners - -A prepended listener is not permanently outermost: another plugin can prepend later, a short-circuit can skip inner work, and an outer wrapper can replace a downstream result. The same defect appears in prompt assembly, tool decisions, result commit, and turn continuation. - -The four owner-final APIs express the exact one-way power required: restore named canonical data, deny monotonically, observe immutable final outcome, or stop after ordinary continuation folding. - -### Put agent-scope policy inside vendored Cordis - -Cordis already supplies derived contexts, effect ownership, and receiver-based filtering. The harness-level primitive composes those domain-neutral mechanisms rather than teaching Cordis about agents, tools, prompts, or global-plus-agent merge rules. - -The lifecycle hardening remains correctly inside Cordis because effect pre-registration, parent ownership before child publication, and rejection of late effects protect every plugin under reentrant hot reload, not only agent scopes. +Hierarchical inheritance silently imports every parent-scoped tool and policy. Flat layers plus parent-owned disposal separate lifetime from composition: the parent owns the child without deciding the child's local world. This choice deliberately makes authorization a separate design. ## Consequences -The design buys one composition model across data, behavior, and lifetime. Its cost is per-scope state, transactional lifecycle machinery, owned runtime snapshots, disciplined dispatch, and four deliberately narrow owner-final APIs. +Contributors use the same registration methods at both deployment and agent scope; changing the calling context changes visibility and cleanup together. Model-visible tool lookup, execution, prompt assembly, policy, observation, and teardown agree on one agent key instead of maintaining parallel per-feature scope options. -### Benefits +The cost is explicit subject selection on reads and dispatch, asynchronous programmatic creation, disciplined handle disposal, and awareness that flat registration scope is not authority. Registries retain service-specific merge behavior, and only services that adopt the scope contract become agent-scoped automatically. -The main benefit is that plugin authors change context, not API. Registries and dispatchers then apply the same agent key across presentation, execution, observation, and cleanup. - -- Global plugins remain deployment-wide contributors and observers. -- Per-agent tools, prompt state, restrictions, and listeners use ordinary registration methods through `agent.ctx`. -- Model-visible schemas, executable lookup, Code Mode bindings, policy, and UI presentation resolve from one agent view. -- Create and resume expose no partially configured registry entry, while caller and AgentLoop ownership cover every await and rollback path. -- Agent teardown preserves the session and scoped listeners through loop exit and final flush, then releases IDs only after scope quiescence. -- Structured output composes independently per child without global mutation or middleware-order assumptions. - -### Costs and constraints - -The costs correspond to the four governing questions rather than one hidden framework abstraction. - -- **Registration and delivery:** registries maintain global and per-scope state; every scoped dispatcher must carry the real subject's key; the carrier is proxy-shaped and not identity-equal to its subject. -- **Lifecycle:** programmatic `create()` and `resume()` are asynchronous; caller sentinels, AgentLoop trackers, reservations, publication barriers, and shared quiescence promises cover construction and teardown races. -- **Boundary ownership:** public values are copied, frozen, bound, or retained by identity at their acceptance boundary; data that the boundary's owned representation cannot preserve fails instead of being coerced. -- **Owner-final policy:** prompt protection can reserve names, guards can only deny, final result observers cannot transform, and terminal stop may discard steering. -- **Flat scope:** a desired child-local contribution must be global or registered explicitly for the child; parent ownership alone does not import registrations. -- **Code Mode:** `run_code` remains protected transport infrastructure, so policy that forbids programs denies execution rather than removing the transport from an SDK-based prompt. - -The direct no-setup `ctx.agentLoop.create()` path remains synchronous for configuration and callers that already have complete options. Programmatic registry create/resume use the full unpublished transaction. - -### Deliberate boundaries - -The decision applies registration scope to tools, prompt state, scoped events, sessions, approvals, and in-process subagent composition. `agent.ctx` does not automatically scope every service call; filesystem policy, LLM interception, background subagent state, and other registries retain their existing subject or policy seams until their own designs adopt the rule. - -Security hardening remains separate work. This design does not sandbox same-process plugins, derive child authorization from a parent, freeze a grant set at agent creation, or introduce generic capability/output/termination tags. Those requirements need an explicit authority model rather than additional meaning attached to registration scope. +The decision applies to tools, prompt state, scoped events, session lifecycle and scoped session events, approvals, and in-process subagent composition. Filesystem policy, LLM interception, background backend state, and other registries retain their own subject or policy mechanisms until their designs explicitly adopt agent scope. diff --git a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md new file mode 100644 index 0000000000..0fbd3d647e --- /dev/null +++ b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md @@ -0,0 +1,969 @@ +# RFC: Agent-scope runtime design and correctness + +Status: implemented + +## Problem + +The [agent-scope contract](2026-07-08-agent-scope-contexts.md) defines the contributor-visible result: registrations made through `agent.ctx` form one flat local layer, operations resolve that layer by their real agent, setup remains unpublished, and teardown preserves the layer until work stops. The implementation must make those claims true inside a cooperative plugin framework and mutable JavaScript runtime. + +Four failure classes interact in the paths this change hardens: + +| Proof obligation | Failure if implemented locally or incompletely | +|---|---| +| Registration and dispatch select the same key | Prompt data resolves for one agent while behavior listeners run for another | +| Construction and teardown have continuous ownership | Reentrant unload publishes a partial world, leaks IDs, or revokes policy before final work | +| Covered validation and later use observe one accepted value | Stateful accessors or caller mutation make checked, executed, logged, and observed data disagree | +| Protocol invariants survive extensible middleware | Listener ordering removes required prompt state, re-allows denied work, commits a failed result, or forces another model step | + +Cordis already supplies derived contexts, effect ownership, receiver-based filtering, and waterfalls, but none alone establishes all four obligations. Context association is not a scope key, raw disposers are not await-idempotent, waterfall listeners can short-circuit or wrap each other, and JavaScript `readonly` types do not constrain runtime accessors. Async persistence, setup, publication callbacks, subagent providers, and worker messages add reentrancy and race boundaries around those primitives. + +## Decision + +The runtime implements agent scope as four coupled mechanisms rather than one generic framework feature: + +| Mechanism | Implementation decision | +|---|---| +| Layer and routing | A scope key tags registration effects; scope-aware contribution registries merge globals plus one layer; dispatch carriers filter listeners by the operation subject | +| Transactional lifetime | Scope, session, registry entry, driver, reservations, caller ownership, and AgentLoop ownership publish and unwind as one ordered transaction | +| Boundary ownership | The hardened acceptance-sensitive paths listed below capture caller fields once and retain stable identities or owner-controlled representations | +| Owner-final policy | Four narrow service-owned boundaries restore named prompt state, deny monotonically, observe final results, and stop terminal turns | + +The same mechanisms carry into in-process subagents and the workflow bridge. Subagents are the composition proof because child setup, structured output, readiness, cancellation, result settlement, and disposal exercise all four obligations concurrently. + +This RFC owns the implementation rationale, algorithms, race handling, and correctness enforcement. The [agent-scope contract](2026-07-08-agent-scope-contexts.md) owns contributor-facing behavior, tool-filter semantics, usage examples, and the security non-goal; this document links to that contract rather than redefining authority or public scope inheritance. + +## Implementation model: domain terms and Cordis mechanics + +Readers need four domain terms and four Cordis mechanics to follow the implementation. Readers already familiar with this codebase and Cordis can skim this section. + +### Recurring domain terms + +Four domain terms keep the rest of the RFC compact. A **Session** is an agent run's append-only event log, from which model history and durable replay are derived. **Lossless JSON** is the JSON subset that can be copied without changing meaning: primitives, dense arrays, and plain objects; cycles, sparse arrays, exotic prototypes, non-finite numbers, negative zero, `undefined`, `bigint`, functions, and symbols are rejected. An **end capability** is an actual callable tool implementation, whether the model sees it as a native schema or a Code Mode binding. **Code Mode** gives the model a generated SDK and a reserved `run_code` transport. Pure `code` presentation replaces native advertisement with that interface; `both` presentation retains native schemas alongside it. + +### Four Cordis mechanics + +Contexts select service access and registration origin, fibers own effects, waterfalls provide cooperative transformation, and dispatch receivers select listeners. + +| Cordis concept | Meaning in this RFC | +|---|---| +| Context | The object through which a plugin reaches services and registers contributions; a derived context can carry a different registration scope | +| Fiber and effect | The runtime owner and one owned piece of setup/cleanup; disposing the fiber unwinds its effects | +| Waterfall | Ordered around-middleware whose listener calls `next()` to include downstream work and may transform or short-circuit the result | +| Dispatch receiver | The `this` object used by Cordis listener filtering; a scope carrier encodes the operation's agent key | + +#### Context selects both service access and registration origin + +A Cordis `Context` is the object through which code calls services such as `ctx.tools`, `ctx.systemPrompt`, and `ctx.sessions`. A service can recover the context through which it was accessed, so the same method can register globally from a plain plugin context or locally from `agent.ctx` without adding an `agent` option to every registration API. Cordis implements contextual service access with a **traced receiver**: a proxy that carries the accessing context while forwarding calls to the concrete service object. + +```js +ctx.tools.register(globalTool) +agent.ctx.tools.register(agentOnlyTool) + +ctx.on('tools/result', globalObserver) +agent.ctx.on('tools/result', agentObserver) +``` + +A context also exposes the dependency view injected into the plugin that minted it. `agent.ctx` therefore carries the agent loop's deliberate service surface; it is not an ambient root context or a security boundary. + +#### Effects make cleanup follow ownership + +An effect is setup whose cleanup belongs to a fiber. Tool registration, prompt contribution, event subscription, and an agent scope are effects, so normal disposal, failure, and hot module reload all follow the same ownership graph. + +```js +ctx.effect(() => { + const resource = openResource() + return async () => { + await resource.close() + } +}) +``` + +Cordis also supports generator effects that nest child effects in a chosen teardown order. The lifecycle section explains why construction must become owner-visible before arbitrary callbacks run. + +#### Waterfalls remain cooperative extension points + +A waterfall listener wraps downstream work. Calling `next()` includes the remaining listeners and base implementation; returning directly skips that downstream portion. + +```js +ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { + const downstream = await next() + return { + ...downstream, + sections: [...downstream.sections, extraSection], + } +}) + +ctx.on('system-prompt/assemble', async () => replacementAssembly) +// The direct return skips this listener's downstream/base. An outer listener +// that already awaited next() still resumes around replacementAssembly. +``` + +This flexibility is intentional for ordinary policy, but it cannot express a fact that must remain true after every wrapper and short-circuit. [Owner-final policy](#owner-final-policy-four-narrow-boundaries) adds only the four final checkpoints that need stronger semantics. + +#### Dispatch receivers select scoped listeners + +Cordis filters listeners using the dispatch receiver, the object visible as `this` inside a function-style listener. `dsh-scope` builds a receiver carrying the operation's scope key, allowing global listeners plus listeners registered for that exact key while rejecting other agents' listeners. + +The receiver is live coordination state, not durable session data. For example, `tools/result` is a live final-outcome notification, while `tool/result` is an append-only session event used for replay and model history. + +## Registration and delivery: global plus exactly one agent layer + +Within services that adopt the agent-scope contract, one scope key controls both registered data and registered behavior. Contribution reads combine the deployment-global layer with exactly one agent layer, while scoped event dispatch admits global listeners plus the listeners for that same agent. + +Scope keys are opaque objects compared by identity; a live `Agent` is its own registration key. There is no name-based equality or parent traversal. + +### Scope mechanism: context, key, and lifetime + +The registration context selects the layer, the scope primitive binds that layer to cleanup, and the nearest scope tag—not an inherited convenience property—selects the key. + +#### The calling context selects visibility and cleanup + +A scope-aware registry method recovers the Cordis context through which its service receiver was accessed and calls `scopeOf(context)` once while installing the registration effect. An absent key selects the global store; a key selects the per-scope store. Cleanup closes over that accepted store and key, so later context mutation or a same-named replacement cannot redirect disposal. Event listeners follow a different Cordis path: `ctx.on()` retains the registering context, and targeted dispatch reads its scope while filtering listeners; `{ global: true }` deliberately bypasses that audience filter without changing cleanup ownership. + +The [public contract](2026-07-08-agent-scope-contexts.md#registration-origin-selects-visibility-and-cleanup) owns the visibility table, shadowing rule, and `{ global: true }` listener exception. Internally, registry resolution overlays one exact identity-keyed map on the global map and never traverses an ancestry relation: + +```text +resolveLayer(agentA): + visible = copy(global registrations) + visible.overlay(registrations from agentA.ctx) + return visible +``` + +The one-overlay algorithm is why the generic primitive needs only opaque identity and effect ownership; parent/child meaning stays outside `dsh-scope`. + +#### The scope primitive keeps layer and owner together + +`dsh-scope` exposes only the operations needed to mint a tagged ownership layer, read its key, target dispatch, and reach quiescent cleanup. For ordinary scope-aware registries, using a separate `{ scope }` option could express “stored in A's layer, disposed with B”; registration through the scoped context makes that mismatch unrepresentable. The `{ global: true }` listener option is an intentional audience exception, and the low-level `scopeTarget(base, key)` primitive still relies on its service-owned caller to supply matching facts. + +| Operation | Responsibility | +|---|---| +| `createScope(context, key)` | Mount an ownership fiber and return its tagged context | +| `scopeOf(context)` | Read the nearest inherited scope key | +| `scopeTarget(base, key)` | Build a scope-filtered dispatch receiver around the existing base receiver | +| `Scope.dispose()` | Return one shared idempotent promise that reaches cleanup quiescence | +| `Scope.rawDispose` | Expose the exact Cordis disposer for ordered generator composition | + +`Scope.dispose()` and `rawDispose` serve different callers. Cordis raw disposers are single-shot, so a repeated raw call need not wait for an earlier asynchronous teardown; the public method follows the backing fiber's in-flight cleanup and gives racing callers the same completion promise. Generator lifecycles use `rawDispose` because Cordis recognizes nested ownership by exact disposer identity. + +The primitive has one essential shape: + +```text +createScope(parentContext, key): + fiber = mount no-op plugin under parentContext + scopedContext = derive fiber.context with nearest-scope-tag = key + + rawDispose = fiber's exact disposer + dispose = memoized operation that: + invoke rawDispose if teardown has not started + follow fiber's in-flight cleanup until quiescent + + return { ctx: scopedContext, rawDispose, dispose } +``` + +Derived contexts inherit the nearest tag. Mounting a plugin under `agent.ctx` preserves the agent scope; deliberately creating another scope replaces the tag below it. + +#### `ctx.agent` is an association; `scopeOf()` selects the layer + +`agent.ctx.agent` gives setup code convenient access to the associated agent, but the nearest scope tag remains authoritative for resolution. A nested scope can inherit the ergonomic `agent` property while replacing the registration key. + +```js +const auditKey = {} +const auditScope = createScope(agent.ctx, auditKey) + +auditScope.ctx.agent === agent // true: inherited association +scopeOf(auditScope.ctx) === auditKey // true: nearest registration key + +await auditScope.dispose() +``` + +This separation keeps the generic scope package independent of the agent package. + +### Resolution contracts preserve domain semantics + +The shared scope selects two layers, but each registry retains its own merge rules and must keep presentation, lookup, and execution coherent within the view it owns. + +#### Registries retain domain-specific merge rules + +The shared primitive answers “which layer?” and “who owns cleanup?”; each service still defines how its values combine. Prompt sections, variables, and tools use scoped-over-global shadowing by name. Tool-schema providers are additive. Tool lookup and execution receive an agent or scope explicitly, while prompt assembly receives an `AssembleContext` whose `scope` selects the layer. + +Calling a read method through `agent.ctx` does not silently choose an agent subject. For example, `agent.ctx.systemPrompt.assemble()` without an assembly scope still requests the global view. Registration origin and operation subject remain explicit, allowing one shared service to act for any agent. + +#### The tool view is live and executable + +`ToolRegistry` owns one resolver rather than separate presentation and execution stores. It snapshots restriction definitions at registration, applies them to the current global map, overlays the matching scoped map, and derives lookup, dispatch, schemas, SDK bindings, timeouts, inspection, and UI presentation from that resolved map. A filtered global implementation therefore cannot remain executable through a second path. + +The [public RFC](2026-07-08-agent-scope-contexts.md#tool-restrictions-resolve-against-a-live-flat-view) owns the exact allow/deny/future-global/local-overlay behavior. The internal distinction needed here is that `ToolRegistry.knownNames()` validates restrictions against the pre-restriction end-capability universe, while the system-prompt provider validates `toolOrder` against the presentation mode's wire universe. + +Final prompt assembly can include schemas from other `systemPrompt.tools()` providers or assembly listeners. The coherent-view proof therefore covers `ToolRegistry`'s own schemas, bindings, lookup, execution, and presentation; another provider owns coherence for the unrelated schemas it contributes. + +Reserved `run_code` presentation sits outside both registration maps. The [Code Mode RFC](../feature/2026-06-15-code-mode.md) owns its mode, SDK, and `toolOrder` semantics; this design relies only on the fact that the transport is resolved separately from filterable end capabilities. + +### Dispatch contract follows the operation subject + +Service-owned dispatch paths derive or couple the scope key with the operation subject, and a carrier composes that key with the chosen base receiver's existing dispatch behavior. For agent events the agent is both base and operation subject; tool, approval, and prompt dispatch instead wrap their owning service while selecting listeners with the operation's agent key. The low-level primitives can still represent mismatched facts, so helper use and development invariants—rather than the type system alone—protect direct internal callers. + +#### The operation subject selects the listener set + +The [public dispatch rule](2026-07-08-agent-scope-contexts.md#scoped-events-follow-the-operations-real-subject) and generated [event catalog](../../../cordis-catalog/events.md) own listener visibility and the exhaustive event-family mapping. The implementation problem is to prevent each service from choosing its carrier, subject argument, and scope key independently. + +Fused helpers keep values that must agree together. `agentEvents(context, agent)` uses one agent as the subject, scope key, and first event argument. `assembleContextFor(agent)` sets both prompt facts and the scope selector. The session store captures its carrier when a session enters because later appends and flushes may occur without the original agent context. + +#### The carrier preserves base-receiver behavior + +Function-style listeners receive the carrier as `this`. Agent listeners may call methods on the agent base; service listeners rely on the owning service's contextual receiver behavior. The carrier is therefore a proxy that selects listeners while reading, writing, and invoking through the real base receiver. + +The implementation uses a dedicated surrogate proxy target with an immutable composed-filter slot. It combines the base receiver's existing `Context.filter` with the scope predicate instead of replacing it. Methods bind to the real base; callable carriers preserve call and construct shape; descriptor queries normalize configurable flags as required by Proxy invariants; and definitions through the carrier require an explicitly configurable descriptor. Stable built-in references protect the composed filter from accidental `.call` replacement. + +Those mechanics preserve observable JavaScript behavior, including private-field method identity: + +```js +class Base { + #count = 0 + increment() { this.#count += 1 } +} + +const base = new Base() +const key = {} +new Proxy(base, {}).increment() // TypeError: proxy lacks Base's private identity + +const carrier = scopeTarget(base, key) +carrier.increment() // works: method is bound to base +carrier === base // false: carrier has distinct identity +``` + +Together these constraints keep listener selection correct while preserving the base-receiver behavior listeners expect. + +The TypeScript-only `Scoped` marker requires a carrier at typed dispatch sites. Runtime marks and development invariants cover JavaScript, casts, and direct Cordis dispatch; they detect routing mistakes but do not confine hostile same-process code. + +## Lifecycle: compose privately, publish once, tear down in reverse + +Scope, session, registry entry, and driver form one transaction with two owners. Request fields are captured first; AgentLoop tracking and both identity reservations precede asynchronous work; the caller owns the prepared lifecycle before setup; publication proceeds in synchronous observable phases; and every teardown path reaches one reverse-order quiescence boundary. + +Two services split the public API from the implementation. `AgentRegistry`, reached as `ctx.agents`, stores live agents and is the front door for `create()` and `resume()`. Its registered `AgentFactory` is concretely implemented by `AgentLoop`, which constructs and drives agents using its own injected dependencies. The rest of this section calls that concrete co-owner the **AgentLoop factory**. + +| Phase | Public state | Ownership fact | +|---|---|---| +| Reserve | IDs unavailable to competitors | AgentLoop tracking and exact reservations cover the next await | +| Prepare or load | Persistence data is loading, or session, scope, and driver exist privately | Resume's load sentinel covers persistence; the complete caller lifecycle covers setup | +| Setup | `setup(agent.ctx)` may await and register | Neither ID is published | +| Publish and start | Session, agent, and lifecycle notifications appear in order | Liveness is checked between observable phases | +| Dispose | Driver drains, registries detach, scope unwinds, IDs release | All owner paths join one completion promise | + +The [public lifecycle contract](2026-07-08-agent-scope-contexts.md#creation-publishes-after-setup-disposal-revokes-after-work-stops) defines what callers observe. The following sections justify each ownership and ordering fact behind that contract. + +### Reservations precede awaiting; lifecycle ownership precedes setup + +AgentLoop tracking and exact identity reservations precede the first await. Resume adds a caller sentinel across persistence loading; create and resume both establish the complete caller-owned lifecycle before invoking setup. + +#### The prepared lifecycle is owned before setup callbacks + +The caller context owns the work it requested and receives the consumer-facing `AgentHandle`. The AgentLoop factory is a structural co-owner because a live agent continues to depend on its injected services. Either owner can deactivate the transaction; both converge on the same lifecycle disposer. + +| Owner mechanism | Covers | Retires when | +|---|---|---| +| Caller lifecycle sentinel | Caller-fiber loss from lifecycle preparation through live lifecycle | Shared lifecycle reaches quiescence | +| Resume load sentinel | Caller-fiber loss across persistence load and lifecycle handoff | Load rollback or the adopted lifecycle reaches quiescence | +| AgentLoop tracker | AgentLoop unload and structural dependency loss | Transaction and lifecycle settle | +| ID reservations | Competing agent/session insertion | Ordered teardown releases both IDs | + +A **sentinel** is an owner-visible effect that follows work whose final disposer is not yet available. It adopts the exact reservation disposers immediately, then follows the complete lifecycle disposer once preparation establishes it. + +Cordis must make construction owner-visible before setup can reenter teardown. An effect's cleanup wrapper enters its owner list before its setup body runs, a child fiber receives its parent-owned disposer before Cordis's child-plugin notification (`internal/plugin`) announces it, and a fiber already unloading rejects new effects after taking its cleanup snapshot. Teardown observers are contained independently so one callback cannot starve peers or interrupt cleanup. These are domain-neutral lifecycle rules; `dsh-scope` uses them by mounting a no-op plugin fiber as the ownership bucket for one scope. + +#### Caller ownership and factory dependency lookup stay separate + +Factory delegation carries two contexts because ownership and dependency origin are different facts. `ownerCtx` is the caller-bound context whose fiber and optional scope own the requested lifecycle. The factory method receiver is the accepted factory traced through that access so the concrete service retains its own injected dependency view. + +```text +callerCtx.agents.create(options) + ownerCtx = context carrying callerCtx's fiber and scope + factoryThis = concrete accepted factory traced through ownerCtx + Reflect.apply(capturedCreateAgent, factoryThis, [ownerCtx, options]) +``` + +`setFactory()` captures the concrete target and its `createAgent` and `resume` callbacks once. It canonicalizes an already traced service before retracing, avoiding a second proxy layer that would break raw-identity state. Plain factory objects receive the explicit `ownerCtx` without depending on Cordis tracing. + +#### Create and resume reserve identities before awaiting + +Programmatic create and resume reserve both agent and session IDs before any operation can await. Create prepares a new or seeded session; resume loads persisted data while a caller sentinel and AgentLoop load tracker already own the interval in which no `Agent` object exists. + +Reservations are capabilities, not advisory sets. Setup code cannot reserve, prepare, create, register, or enter a substitute under the same IDs. A session reservation prepares at most one exact object, and publication requires the matching factory-held capabilities. A failed or abandoned transaction therefore cannot publish a substitute or wedge an ID indefinitely. + +Resume transfers ownership rather than opening a gap: + +```text +resume(ownerCtx, request): + snapshot request identity, options, and setup callback + reserve agentId and sessionId + install caller sentinel adopting both reservation disposers + track load under AgentLoop + + persisted = await firstOf(persistence.load(sessionId), deactivated) + session = sessionReservation.prepare(reconstruct persisted data) + starting = startOwned(ownerCtx, session, reservations, setup) + caller sentinel follows starting.dispose + return await starting.result +``` + +If deactivation wins, a backend load may still settle internally but has no path back to publication. Preparation failure still returns a rollback-backed lifecycle result, so both owners can wait for actual cleanup instead of mistaking a rejected async result for successful installation. + +### Setup composes an unpublished world + +`setup(agentCtx)` may register tools, prompt state, restrictions, listeners, protections, or child plugins and may await their activation. The new agent is available as `agentCtx.agent`, but neither agent nor session is visible in its global registry. + +The complete rollback skeleton exists before setup runs. If setup throws, rejects, or loses either owner, the scope and prepared resources unwind and the IDs become reusable. After setup settles, a microtask checkpoint and liveness checks let a same-turn owner unload win before publication. + +Setup composes but cannot drive. `send`, `steer`, `inject`, and `cancel` reject until publication reaches the session-start boundary. The driver lock and inbox use runtime-private state, and only factory-held controls enable and start the loop; JavaScript casts cannot call a public start method or write directly into the queue. + +```text +startOwned(ownerCtx, snapshot, preparedSession): + world = prepareLifecycleWithCompleteRollback(ownerCtx, snapshot, preparedSession) + + result = async: + require world active + await firstOf(runOptionalSetup(snapshot.setup, world.agent.ctx), world.deactivated) + await oneMicrotask() + require caller, factory, owner fiber, and owner agent still active + world.publish(snapshot.source) + return handle(world.agent, world.dispose) + + on any error: + await world.dispose() + rethrow +``` + +### Publication is ordered, observable, and rollback-covered + +Publication is one synchronous sequence with liveness checks between three observable notification phases. Both registry entries exist before the first listener runs, but driving stays locked until immediately before `agent/session-start`. + +1. Enter the session store and capture its scope carrier. +2. Enter the agent registry without announcing it. +3. Recheck caller and factory liveness. +4. Emit `session/created`. +5. Recheck liveness. +6. Emit `agent/created`. +7. Recheck liveness. +8. Enable driving. +9. Emit `agent/session-start`. +10. Recheck liveness. +11. Start the driver. + +```text +publish(world): + world.beginSynchronousPublication() + try: + world.detachSession = sessions.enter(world.session, sessionReservation) + world.detachAgent = agents.enter(world.agent, agentReservation) + require callerAndFactoryActive + sessions.announce(world.session) + require callerAndFactoryActive + agents.announce(world.agent) + require callerAndFactoryActive + world.driver.enableDrivingVerbs() + emitNonVetoing(agent/session-start) + require callerAndFactoryActive + world.driver.start() + finally: + world.endSynchronousPublication() +``` + +#### Creation is paired, not atomic + +Observers run between publication steps, so the sequence is not described as atomic. Effects already performed by an earlier listener cannot be retracted if a later listener throws. Instead, each registry marks a creation announcement as begun before dispatch and emits exactly one matching disposal edge during rollback. An entered object that was never announced has no disposal notification because no observer was told it existed. + +A detach requested during `session/created` or `agent/created` is deferred until that dispatch unwinds. Stable captured carriers and exact-object guards prevent a later listener from observing `disposed` before `created` or a stale detach from deleting a replacement with the same ID. The outer publication barrier likewise prevents caller or AgentLoop teardown from removing the other registry entry or unwinding `agent.ctx` while an announcement remains on the stack. + +Creation listener synchronous throws remain vetoes. Returned promise rejections are observed and logged but not awaited: publication has no asynchronous gap in which such a result could roll back safely. Disposal notifications and `agent/session-start` are non-vetoing and independently contain both synchronous throws and returned-promise rejections so one listener cannot block cleanup or later observers. + +### Teardown stops work before revoking registrations + +Every owner path reaches one memoized reverse-order transaction. It marks the lifecycle inactive, waits for an in-progress synchronous publication phase, stops the driver through actual exit and final durability work, detaches the agent and session, unwinds the scope, and releases IDs last. + +Final turn events, the turn-ending flush, and any outstanding session flush started while the agent was idle therefore run while the session and scoped listeners still exist. `agent/disposed` observes an already quiescent and unregistered concrete agent while its session remains live; `session/disposed` follows after event feed detachment and store removal. Both use the stable carrier captured for their matching creation edge. + +```text +disposeOwnedAgent(world): + mark world inactive + await world.synchronousPublicationIfRunning() + await world.stopDriver() # loop exit plus agent-started flushes + world.detachAgent() + world.detachSession() + await world.scope.dispose() + world.releaseSessionReservation() + world.releaseAgentReservation() +``` + +`AgentHandle.dispose()` gives repeated and racing consumers the same completion promise. The lifecycle-long caller sentinel follows that promise even when handle disposal wins first, while the AgentLoop ledger independently stops new transactions and waits for every structurally dependent agent before the service disappears. + +AgentLoop co-ownership follows dependency shape, not a blanket “creator owns every returned value” rule. An AgentLoop-created agent continues to depend on the loop's services, so AgentLoop unload stops it. + +## Boundary ownership: hardened paths accept once and own the accepted value + +The acceptance-sensitive paths enumerated below read caller-owned fields once and retain only owner-controlled identities or snapshots before crossing asynchronous, reentrant, model-visible, or durable-log code. This is a boundary-by-boundary implementation property, not a blanket claim about every public API. The protection is independent of TypeScript: `readonly` annotations vanish at runtime, and JavaScript accessors can return a different value on every read. + +The shared shape distinguishes identity-bearing references from data. Agent objects and abort signals are retained by identity after one read. Boundaries whose contract requires lossless JSON—such as session events and subagent payloads—validate and materialize it in one traversal; other boundaries use their own owned representation, such as `structuredClone` for agent options. Scalars and callbacks are captured once, then each boundary applies the validation promised by its API before downstream use. + +```text +accept(input): + read every relevant top-level field exactly once + retain identity-bearing references without rereading them + validate acceptance-time fields from those captures + copy or pin data in the representation owned by this boundary + bind accepted callbacks once when method receiver state is intentional + expose only owner-controlled identities, frozen records, or detached results +``` + +Capture does not imply uniform eager callback type-checking. Agent `setup` is captured once and any invocation failure enters rollback; a tool guard is likewise captured, and an invalid cast becomes a normalized execution error. The invariant is that later work never rereads caller fields to choose a different value. + +| Boundary | Identity retained | Data detached or pinned | +|---|---|---| +| Tool and `SubagentProvider` registration | Original callback receiver | Name, flags, schemas, scalar config | +| Agent create/resume | Caller context, setup callback | IDs, options, session metadata and seed | +| Approval request | Agent and abort signal | Tool name, call ID, and reason | +| Tool execution | Agent, signal, registry-minted parent token | Call identity and arguments | +| Session append/load | Session identity | Header and event envelopes | +| Subagent start/result | Parent and signal | Prompt, filters, schema, options, result | + +Before agent setup can run, the concrete agent pins its accepted ID, options, and session and binds `ctx` once. Registry detach closures likewise close over their accepted keys instead of rereading mutable public fields. + +A stateful getter shows why validation and ownership must use the same capture: + +```js +let reads = 0 +const input = { + get name() { + reads += 1 + return reads === 1 ? 'safe_tool' : 'different_tool' + }, +} + +// Wrong: validation and storage observe different values. +validateName(input.name) +storeName(input.name) + +// Right: one accepted value drives both. +reads = 0 +const acceptedName = input.name +validateName(acceptedName) +storeName(acceptedName) +``` + +### Registered definitions are frozen snapshots + +Tool registration creates the stored definition identity once; changes occur through explicit unregister/register effects rather than mutation of a caller-retained object. Parameters are materialized in one traversal, callbacks bind once to the accepted definition receiver, and the stored record is deep-frozen. + +The first-party `defineTool()` helper applies the same boundary before registration. It captures each option once, materializes the authoring `SchemaSpec`, and derives both the wire schema and later execution/presentation validation from that owned spec. + +```text +defineTool(options): + accepted = read each option exactly once + parameterSpec = snapshotLosslessJson(accepted.parameters) + wireSchema = snapshotLosslessJson(convertToJsonSchema(parameterSpec)) + build execute and presentation validation over parameterSpec + +registerTool(context, definition): + accepted = read each definition field exactly once + stored = deepFreeze({ + accepted name, description, timeout, + parameters: snapshotLosslessJson(accepted.parameters), + execute: bind accepted.execute to definition, + presentation callbacks: bind accepted callbacks when present + }) + layerFor(scopeOf(context)).add(stored.name, stored) +``` + +`get()` and `visible()` return the frozen stored definitions; `schemas()` returns detached projections. Replacing `definition.execute` after registration has no effect, while a callback can deliberately read live state from its closure or original receiver. + +Factory and backend registration use different reentrancy orderings around the same ownership rule. `AgentFactory` registration claims its single slot before reading callback accessors. `SubagentProvider` registration first snapshots the provider fields, then its effect checks and enters the accepted name. Both capture callback identity and intentional receiver state once, and hot-reload cleanup closes over the accepted slot or key instead of rereading a mutable public property. + +### Durable session ownership carries the scope key + +The [session-immutability RFC](2026-06-11-dev-invariants-over-deep-readonly.md#session-owns-immutable-history) owns header, event, and snapshot semantics. Agent-scope correctness adds one requirement: the store keeps append observers, accepted registry IDs, and captured scope carriers in private owner state rather than caller-writable fields. Outside JavaScript therefore cannot rename a stored session or redirect later `session/event` delivery by mutating visible state. + +Approval requests follow the same async boundary at smaller scale: one capture preserves exact agent/signal identities, copies scalar fields, captures the session once, and drives `approval/asked`, scoped policy, cancellation, and `approval/decided` from that record. + +### Tool execution has pipeline-owned identity + +The [interception-seams RFC](../feature/2026-06-30-interception-seams.md) owns the public tool-pipeline contract. For agent-scope correctness, `ctx.tools.execute(input)` must turn caller-owned input into one pipeline-owned `ToolExecution` before any scoped policy or dispatch runs. It first reads `callId` and `name` once and requires strings; a failure there rejects because even an error result would lack trustworthy correlation identity. Once those strings are accepted, later input failures can become normal final error outcomes. + +Arguments are materialized once and deep-frozen. The registry assigns a frozen property-free `ToolExecutionToken`; callers cannot choose it. `token`, `callId`, `name`, `arguments`, `agent`, and optional opaque `parent` token become non-writable and non-configurable before policy. `signal` is the only operational field an around-dispatch wrapper may replace or remove. + +```text +prepareExecution(input): + callId = read input.callId exactly once + name = read input.name exactly once + require both are strings + + accepted = read arguments, agent, parent, and signal exactly once + require parent is absent or a registry-minted token + arguments = deepFreeze(snapshotLosslessJson(accepted.arguments)) + + execution = { + token: new frozen property-free object, + callId, name, arguments, + agent: accepted.agent, + parent: accepted.parent, + signal: accepted.signal + } + protect every field except signal + return execution +``` + +Stable execution identity prevents middleware from changing which tool or scope policy accepted. It also gives structured-output commit a safe `WeakMap` key when an adapter reuses a string call ID. Code Mode correlates an SDK sub-call with its enclosing `run_code` using only the outer execution's opaque token, never a mutable reference to the live outer object. + +Result boundaries apply the same ownership rule. Each transform returns data that is captured field-by-field, validated, materialized, and ultimately deep-frozen for final observers; malformed outcomes normalize to JSON-safe error results rather than reaching the session log as apparent success. + +## Owner-final policy: four narrow boundaries + +Waterfalls remain the ordinary extension mechanism; each of four protocol invariants runs after the last extension point capable of violating that specific invariant. Each owner-final API has the weakest one-way power that can preserve its guarantee. + +Here **canonical** means the named registry or tool-schema-provider output assembled before the waterfall—not “all output the service approves.” Protection restores only the names its owner declares. + +| Invariant | Cooperative extension point | Owner-final boundary | Guarantee | +|---|---|---|---| +| Named prompt/tool contribution | `system-prompt/assemble` waterfall | `systemPrompt.protect()` finalization | Canonical presence, absence, definition, and local anchor survive | +| Non-overridable tool denial | `tools/pre-execute` allow/deny/ask waterfall | Synchronous `tools.guard()` | A denial cannot become allow | +| Authoritative live outcome | Execute and post-execute waterfalls | Awaited `tools/result` notification | Observers receive one immutable final result | +| Terminal protocol completion | Continuation waterfall and pending steering | Serial `agent/turn-stop` | No middleware or late steering creates another step | + +### Prompt protection restores named canonical contributions + +`systemPrompt.protect({ sections, tools })` snapshots the requested names and restores their canonical registry or tool-schema-provider output after the complete assembly waterfall. Global and matching scoped protections compose by set union; a waterfall failure still fails assembly rather than triggering recovery. + +Protection covers both presence and absence. If the canonical assembly omits a protected name, finalization removes a listener-fabricated entry; this is how Code Mode keeps a native schema absent while preserving the SDK/transport form. Tool providers likewise expose one captured coherent record for schemas and optional known names, so a stateful getter cannot validate one name and display another. + +#### Global section protection reserves its name + +A globally protected section name cannot be shadowed by a scoped section. Scoped registration under an already protected name fails, and adding protection fails if a scoped shadow already exists. This check occurs before assembly because scoped-over-global merge would otherwise make the shadow itself appear canonical. + +Tool-schema protection does not create a blanket reservation for unrelated schema names. Providers are additive and may deliberately contribute other executable schemas; the owner-final guarantee covers only the named canonical contribution. + +#### Restoration preserves a useful local anchor + +Protection does not reset the whole assembly. It removes protected names from the waterfall result and reinserts each canonical entry before the first surviving later unprotected canonical neighbor, or at the end if none survives. Unprotected entries retain the order and definitions chosen by middleware. + +```text +assemble(context): + assembly = assemble registries for context.scope + canonical = snapshot protected section/tool inputs + transformed = await systemPromptAssembleWaterfall(assembly) + + for each protected canonical name: + remove every transformed entry with that name + if canonical includes the name: + insert before first surviving later canonical neighbor, else append + + return transformed +``` + +Code Mode globally protects `tools:sdk` and reserved `run_code`; structured output adds scoped protection for its instruction and capture schema. + +### Tool guards deny monotonically + +`ctx.tools.guard()` installs a global or scoped synchronous check after the complete `tools/pre-execute` waterfall and before dispatch. A guard returns a denial reason or `undefined`; it has no allow result. + +Pre-execute hooks still compose ordinary allow, deny, and ask decisions. An ask resolves through the optional approval service, where only `allowed-once` becomes allow and absence or any non-grant becomes deny. Guards run afterward, so listener order cannot convert their denial into dispatched work. + +```js +agent.ctx.on( + 'tools/pre-execute', + async () => ({ kind: 'allow' }), + { prepend: true }, +) + +agent.ctx.tools.guard(execution => + execution.name === 'bash' + ? 'reviewer agents are read-only' + : undefined, +) +``` + +Even a later prepended allow listener cannot bypass the guard. A denied call still becomes an error outcome that flows through result transformation and final observation. + +### `tools/result` observes the final live outcome + +For a successfully prepared execution, the live pipeline is `tools/pre-execute` → guards → `tools/execute` → `tools/post-execute` → `tools/result`. Malformed non-identity input instead takes the error-shell path directly to final observation, as the algorithm below shows. The first, execute, and post stages are transformable waterfalls; `tools/result` is an awaited observe-only notification after every transform and outer error normalization. + +Every observer receives the same frozen execution and a separate deep-frozen snapshot of the owned result returned to the caller. Listener failures are contained independently, so they cannot change that returned result or starve peers. Routing uses `execution.agent`. + +`tools/result` is not the durable `tool/result` session event. The live notification also fires for direct programmatic executions and is the source of truth for in-process commit logic. The agent loop later appends the durable event for replay, UI reconstruction, and model history. + +```text +execute(input): + accept trustworthy callId and name + try to prepare pipeline-owned execution + on preparation failure: + create an identity-bearing error shell + ownedResult = owned error result + freeze execution + observerResult = deepFreeze(snapshotLosslessJson(ownedResult)) + await every tools/result observer independently with observerResult + return ownedResult + + gate = await tools/pre-execute(execution) + resolve ask through approval when needed + denial = policy denial or first guard denial + + if denied: + result = errorResult(denial) + else: + result = await tools/execute(execution, dispatchRegisteredTool) + + result = await tools/post-execute(execution, result) + ownedResult = normalize into owned lossless JSON + freeze execution + observerResult = deepFreeze(snapshotLosslessJson(ownedResult)) + await every tools/result observer independently with observerResult + return ownedResult +``` + +Waterfalls transform only at their named stages; guards only deny; final observers only observe. + +### `agent/turn-stop` makes continuation terminal + +Steering is input for another model step inside the current turn; queued prompts wait for a future turn. Ordinary continuation remains extensible: the loop computes a default, runs `agent/turn-continuation`, records any force-continue reason as steering, and treats pending steering as a reason to continue. + +The scoped serial `agent/turn-stop` checkpoint runs after that folding. A listener returns `{ action: 'stop' }` or abstains with `undefined`; malformed values and throws close the current turn with an error. A stop is terminal, so later listeners and steering cannot restore continuation. + +The loop uses `strictSerial` because ordinary Cordis serial dispatch treats `null` and `false` as abstentions. This terminal protocol permits only `undefined` to abstain, making accidental return values fail closed. + +Terminal state remains active through `turn/end` and the durability flush. Steering added by continuation, turn-close, or flush listeners is discarded after a terminal stop, while the ordinary queued-prompt FIFO remains untouched. + +```text +afterSuccessfulStep(turn): + decision = await agent/turn-continuation(defaultDecision) + record decision.reason as steering when present + if steering is pending: decision = continue + + terminal = await strictSerial(agent/turn-stop) + if terminal == stop: + discard steering + terminalStopped = true + decision = stop + + append turn/end + await session/flush + + if terminalStopped: + discard steering added by turn/end or flush listeners + else: + move leftover steering to the next-turn queue +``` + +This stronger control is reserved for terminal protocols such as a completed structured child; ordinary continuation policy remains cooperative. + +## Subagents: the composition proof + +In-process subagents add no second scoping model. They create a fresh flat child scope during unpublished setup, install ordinary scoped persona/filter/protocol registrations, own the child through a run handle, and use the same owner-final checkpoints for structured output. + +The roles and phases are explicit: + +| Role | Responsibility | +|---|---| +| Caller | Supplies parent, prompt, optional child configuration, and eventual disposal | +| `SubagentService` | Validates capabilities, owns the public wrapper, normalizes result and lifecycle telemetry | +| `SubagentProvider` backend | Chooses transport and creates one run | +| In-process driver | Owns child creation, setup, prompt drive, result read, cancellation, and teardown | +| Child `Agent` | Uses the ordinary agent lifecycle and its fresh `agent.ctx` | + +```text +recommended caller order: start -> await run.started -> await run.result -> await run.dispose() +internal observation: started and result may settle in either order; lifecycle publication waits for started +ownership: dispose may race any phase and joins one cleanup promise +``` + +The [agent-scope contract](2026-07-08-agent-scope-contexts.md#subagents-use-the-same-composition-rule) gives the contributor-facing example, and the [subagent capability RFC](../feature/2026-06-21-subagent-capability-seam.md) owns the public `SubagentRun` contract. This section follows only the in-process ownership and terminal-protocol implementation. + +### The child world uses ordinary registrations + +A child persona is a scoped `deployment:persona` section. Its tool filter is a scoped restriction over the live global tool layer. Structured output is a bundle of scoped tool, prompt, protection, guard, and listener registrations. + +```js +let structured +const setup = childCtx => { + if (persona !== undefined) { + childCtx.systemPrompt.section({ + name: 'deployment:persona', + order: 0, + text: persona, + }) + } + if (toolFilter !== undefined) childCtx.tools.restrict(toolFilter) + if (schema !== undefined) { + structured = attachStructuredRuntime(childCtx, schema) + } +} +``` + +The driver creates one run-owner fiber under `parent.ctx` and calls the child factory through it. Parent teardown, `spawn` backend teardown, and manual run disposal reach the same node, but the child still receives a new registration key. Lifetime inheritance therefore does not imply registration inheritance. + +### Structured output is a child-owned terminal protocol + +A structured child registers a real-schema `structured_output` tool and instruction in its own scope. Concurrent children can use different schemas without a global placeholder, reference count, or remove-for-everyone pass. + +The [Code Mode RFC](../feature/2026-06-15-code-mode.md) owns advertised wire routes and SDK behavior. The correctness distinction here is execution nesting: a native capture has one tool execution, while an SDK capture is an inner execution whose parent token identifies the enclosing `run_code`. Tool mode is presentation rather than an execution allowlist, so a direct unadvertised capture still follows the native commit path; a deployment that forbids that route uses an execution guard. + +Named protection restores this child's canonical capture contribution and instruction without erasing unrelated schemas deliberately added by another assembly provider. + +#### Native calls commit once; Code Mode SDK calls commit twice + +The capture body validates and stages a cloned value by stable `ToolExecution` identity. The scoped final-result observer commits a native capture only if that exact execution's final result succeeds. + +A schema-validation failure becomes the ordinary `INVALID_ARGS` tool result, so the model can correct the value and call the capture tool again within the same turn. + +```text +structured_output.body(value, execution): + validate value against this child's schema + staged[execution] = clone(value) + return ordinary success + +on tools/result(execution, finalResult): + if execution is staged: + value = staged.remove(execution) + if finalResult succeeded: + captured = value +``` + +For a Code Mode SDK call, successful inner observation records a pending value against the opaque outer `run_code` token. Commit waits for the outer transport's own successful final result because an inner side effect can succeed while the program or its post-policy still fails. + +```text +on tools/result(innerStructuredCall, innerResult): + if innerStructuredCall is staged: + value = staged.remove(innerStructuredCall) + if innerResult succeeded: + pending = { outerToken: innerStructuredCall.parent, value } + +on tools/result(outerRunCodeCall, outerResult): + if pending.outerToken == outerRunCodeCall.token: + value = pending.value + pending = none + if outerResult succeeded: + captured = value +``` + +Once capture is staged against an outer transport or committed, the scoped guard denies later calls in that response. After commit, `agent/turn-stop` ends the turn after ordinary continuation and steering fold. A child that otherwise completes cleanly without a committed capture returns an error rather than being re-prompted; requesting a schema makes output mandatory, not guaranteed. + +### The run protocol separates acceptance, readiness, result, and disposal + +`SubagentService.start()` returns synchronously, but `run.started` is the publication boundary. Callers treat the child as live only after readiness, consume `result`, and always dispose the run. + +Pre-readiness cancellation of an in-process run deactivates the run-owner fiber, prevents publication, rejects `started`, resolves `result` as `aborted`, and emits neither subagent lifecycle edge. + +`SubagentProvider` registration captures name, capability flags, the `inheritsParentContext` conversation-history descriptor, and the bound start callback once. The descriptor says whether completed parent turns seed the child's conversation; it says nothing about scope, services, tools, or authority. + +Starting a run captures every request field once. Parent and abort signal remain identity references; prompt, filter, schema, and options are detached lossless JSON; fixed `persona` and absolute `maxDepth` values validate before backend ownership. The in-process backend separately snapshots its optional session seed, and the service snapshots the terminal result when it settles. + +Depth validation repeats at each public entry while one helper owns the accepted domain: + +```text +tool-subagent plugin load: + assertSubagentMaxDepth(config.maxDepth) + +SubagentService.start(request): + capture and validate request.maxDepth + +startInProcessRun(request): + capture and validate request.maxDepth + parentDepth = validated depthOf(parent) + childDepth = parentDepth + 1 + reject if childDepth is not a safe integer + reject if maxDepth exists and childDepth > maxDepth +``` + +Only `undefined` means parent depth zero. Present depth and cap values must be non-negative safe integers and must not be negative zero; derived overflow rejects even when no request cap exists. + +The service does not expose the backend-owned run handle directly. It captures `id`, `started`, `result`, and methods once; binds methods to that handle; wraps result in one detached frozen record; and installs a shared disposal promise before calling untrusted backend cleanup. Once a callable backend disposer has been captured, a malformed later field triggers rollback; if no callable disposer can be captured, rollback is impossible and acceptance fails immediately. A backend disposer that directly returns the wrapper's reentrant promise is rejected as a cycle instead of hanging. + +```text +startInProcessRun(backendContext, acceptedRequest): + install backend ownership + attach accepted abort signal + create run-owner fiber under accepted parent.ctx + create child through runOwner.ctx.agents with unpublished setup + + started = child creation publication + result = after started: + send accepted prompt + await child idle + derive owned terminal result + dispose = dispose run owner and await quiescence + +SubagentService.start(...): + backendRun = backend.start(detached request) + serviceRun = freeze accepted id, readiness, bound methods, normalized result + observe result immediately + after readiness: + emit subagent/start, then buffered/eventual subagent/end + on readiness failure: + emit neither lifecycle edge +``` + +The service observes result settlement immediately even while readiness is pending, preventing an early rejection from becoming temporarily unhandled. Lifecycle listeners receive one frozen payload; their throws and returned-promise rejections are contained independently and cannot veto the run. + +## Workflow integration preserves the subagent contract + +The [dynamic-workflows RFC](../feature/2026-07-05-dynamic-workflows.md) owns workflow behavior. The agent-scope concern is whether the worker bridge preserves the same readiness, terminal-claim, and bounded-cleanup boundaries across a message port. It never announces an unready child, never lets cleanup rewrite an already chosen result, and never suppresses disposal merely because another terminal fact already won. + +The worker executes the workflow script and exchanges protocol messages; the host owns `SubagentService`, which invokes `SubagentProvider` backends and returns normalized run wrappers that the host retains. Their lifetimes follow dependency shape: an AgentLoop-created agent stops when its loop unloads, while a workflow run captures its holder-bound `SubagentService` at start, so unloading the workflow engine prevents new runs without revoking an already returned run. + +Three state dimensions remain separate: + +| Dimension | Question | Winning rule | +|---|---|---| +| Admission | May a worker message still start or announce a child? | Closed admission refuses the exact run and cleans it up | +| Terminal claim | Which external result does the workflow expose? | Earlier accepted external cancellation wins; otherwise first result/death claim wins | +| Physical cleanup | Which registered children and worker resources remain? | Every path may still dispose survivors through per-call gates | + +### Child admission waits for readiness + +After `SubagentService.start()` returns its normalized wrapper, the host registers that exact wrapper before awaiting, attaches result observers immediately, and rechecks admission both then and when `started` settles. A closed boundary claims cancellation and disposal for that exact entry, removes it only when disposal settles, and reports `ChildStartError` only while the worker reply channel remains open. + +The backend's nested `start()` may synchronously reenter workflow cancellation before the service wrapper reaches the host registry. The immediate post-start check and exact-wrapper identity guard close that interval; a backend that later fulfills its own readiness cannot resurrect workflow admission. + +```text +after subagents.start returns its run wrapper: + register exact wrapper for cancellation + observe and snapshot result immediately + if admission closed: refuse and clean exact wrapper + else await run.started + + on ready: + if admission closed: refuse and clean exact run + else send ChildStarted, then buffered/eventual outcome + + on readiness failure: + send ChildStartError only if the worker reply channel remains open + dispose exact wrapper if still registered +``` + +### Each terminal contender claims before its own callbacks + +Each terminal path records the state it owns before invoking its own callback fanout. External `cancel()` records the accepted cancellation reason before invoking child cancellation. On the Result path, the worker queues its `Result` message before settlement cleanup messages on the same port, and the host records the winning result before any Result-triggered abort or cancellation. Reentry therefore observes the fact that already won instead of rewriting it. + +```text +on workflow Result: + cancellationWasAlreadyAccepted = external cancellation is in flight + claim chosen result: + if earlier external cancellation and result is not cancelled: + cancelled result + else: + worker result + + if not cancellationWasAlreadyAccepted: + abort shared child-request signal + cancel every registered child through its at-most-once gate + settle chosen result +``` + +The worker may also send a later `ChildCancel`; host fanout and the worker message share one per-call cancellation gate, so an arbitrary backend's `cancel()` need not be idempotent. Each callback is contained independently. + +### Worker death, exit, and disposal remain separate + +The first worker death signal closes message admission, claims a death result unless an earlier terminal fact won, cancels and disposes registered children, and synthesizes missing lifecycle ends. A queued message can arrive between Node's `error` and `exit`, so the logical admission barrier—not physical exit—prevents late child creation or narration. + +Physical exit performs a final disposal-only sweep without repeating explicit cancellation. A cancellation grace period bounds how long the host waits for cooperative settlement before terminating the worker; a grace result can already be chosen while exit cleanup still needs to dispose surviving child handles. The bound is real: after grace expires, public disposal may return after invoking child disposal and reaping host resources even if a slow backend disposer has not reached quiescence. + +Public `handle.dispose()` claims its shared promise before invoking cancellation or child callbacks. Each `disposeChild` likewise claims its call-ID promise before invoking the backend disposer. Public-first reentry joins the public promise; worker-first reentry lets the holder traversal join the already claimed child promise. Settled `dispose()` still drives a host-side reap before awaiting quiescence, so a fire-and-forget child cannot remain alive merely because workflow result settlement already occurred. + +Together these rules ensure `workflow/agent-start` names only ready children, external result precedence is stable, and every surviving child reaches disposal. + +## Correctness enforcement + +The runtime rule is checked at four escape boundaries: API shape couples related subjects, TypeScript marks typed dispatch, development invariants inspect actual dispatch, and repository gates keep declarations aligned with enforcement. + +### API shape couples values that must agree + +`agentEvents(context, agent)` couples carrier, subject, and first event argument. `assembleContextFor(agent)` couples prompt facts with scope selection. `SessionStore.flush(session)` owns lookup of the carrier captured when the session entered. + +```text +assembleContextFor(agent): + return { agent, scope: agent } + +agentEvents(context, agent): + carrier = scopeTarget(agent, agent) + return dispatcher that always injects agent as the event subject +``` + +These helpers make a mismatch harder to express than the correct spelling. + +### Type markers cover every scoped event declaration + +Scoped agent, approval, tool, prompt, session, and subagent lifecycle events declare a `Scoped` receiver. TypeScript rejects a bare subject at typed dispatch sites, including subagent lifecycle events scoped to the delegating parent. + +The marker is compile-time only; JavaScript, casts, and direct Cordis dispatch can bypass it. + +### Development invariants inspect actual dispatch + +The invariants plugin observes Cordis's internal dispatch before listener delivery. Every scoped event requires a marked carrier, and events whose arguments expose the subject require the carrier key to be the same object. + +Session and subagent payloads do not expose their owner key directly, so their service centralizes key selection and the invariant proves carrier presence. Additional invariants reject an assembly whose `agent` and `scope` disagree and a turn opened before `agent/session-start`. + +Dedicated `dsh-scope` unit tests cover the carrier's advanced Proxy behavior: private-field method binding, call/construct shape, primordial filter invocation, own-key/descriptor consistency, and explicit configurable definitions. These are implementation tests, not checks performed by the invariants plugin. + +### Repository gates keep declarations and dispatchers aligned + +`verify-scoped-dispatch` compares declared scoped events with the runtime invariant table, and the generated event matrix requires every declaration to name a recognized dispatcher. Source JSDoc generates the [event catalog](../../../cordis-catalog/events.md), which remains the exhaustive signature and mode reference. + +## Alternatives considered + +The [agent-scope contract](2026-07-08-agent-scope-contexts.md#alternatives-considered) owns the rejected public architectures: explicit agent parameters, event-only filtering, per-agent service graphs, and hierarchical registration inheritance. This RFC records the implementation alternatives rejected after choosing the public contract. + +### Publish the agent before running setup + +Early publication lets setup find the agent in global registries but lets observers act on a partially configured world. Rollback can remove entries but cannot retract external effects from listeners that already ran. + +The unpublished setup callback already receives `agent.ctx` and `ctx.agent`, so early global lookup is unnecessary. + +### Allow only synchronous setup + +Synchronous setup cannot honestly compose child plugins whose activation is asynchronous. TypeScript also permits a promise-returning callback where a void return is expected, so a synchronous-looking type would not reliably contain accidental async work. + +Awaited setup makes the transaction explicit and keeps first publication and prompt assembly behind it. + +### Validate caller data, then clone it + +Validation followed by a separate clone rereads accessors, so it can approve one value and retain another. A generic JSON clone can also erase or coerce exotic prototypes and unsupported values. The lossless-JSON traversal validates and materializes one captured value in the same operation. + +### Enforce invariants with prepended waterfall listeners + +A prepended listener is not permanently outermost: another plugin can prepend later, a short-circuit can skip inner work, and an outer wrapper can replace a downstream result. The same defect appears in prompt assembly, tool decisions, result commit, and turn continuation. + +The four owner-final APIs express the exact one-way power required: restore named canonical data, deny monotonically, observe immutable final outcome, or stop after ordinary continuation folding. + +### Put agent-scope policy inside vendored Cordis + +Cordis already supplies derived contexts, effect ownership, and receiver-based filtering. The harness-level primitive composes those domain-neutral mechanisms rather than teaching Cordis about agents, tools, prompts, or global-plus-agent merge rules. + +The lifecycle hardening remains correctly inside Cordis because effect pre-registration, parent ownership before child publication, and rejection of late effects protect every plugin under reentrant hot reload, not only agent scopes. + +## Consequences + +The implementation makes the contributor contract locally checkable at each escape boundary. Its cost is explicit runtime machinery for key coherence, continuous ownership, accepted-value stability, and post-middleware finality. + +### Correctness properties + +The mechanisms compose into five properties: + +- Registry layers and event carriers derive from one opaque key, while fused helpers couple subjects that must agree. +- Reservations, sentinels, provider tracking, publication barriers, and reverse teardown cover every asynchronous or reentrant ownership interval. +- At the hardened boundaries listed above, accepted identities and snapshots prevent runtime accessors or later mutation from splitting validation, execution, logging, and observation. +- Prompt protection, guards, final-result observation, and terminal stop each have only the one-way power their invariant requires. +- In-process subagents and workflow runs preserve readiness, terminal precedence, and disposal under provider callbacks, worker death, and racing owners. + +### Costs and constraints + +The proof is not free: + +- Registries keep global and per-scope state, and every scoped dispatcher must preserve the operation subject through a proxy-shaped carrier. +- Programmatic create and resume require reservation capabilities, two-owner tracking, rollback state, ordered publication, and a shared quiescence promise. +- Acceptance boundaries copy, freeze, bind, or retain values according to their contract, increasing allocation and validation work. +- Owner-final behavior uses four explicit APIs instead of relying on ordinary listener ordering. +- Runtime invariants, generated dispatch checks, and focused Proxy/lifecycle/race tests remain necessary because TypeScript cannot enforce direct JavaScript dispatch or runtime reentrancy. + +The direct no-setup `ctx.agentLoop.create()` path remains synchronous for configuration and callers that already have complete options. Programmatic registry create/resume use the full unpublished transaction. + +### Limits of the proof + +The proof covers services and event families that explicitly adopt the agent-scope helpers. It does not make every service call scope-aware, strengthen the ordering contract of a custom agent registered outside AgentLoop, or force an arbitrary external subagent backend to reach quiescence after a workflow grace deadline. + +The [security and authority non-goal](2026-07-08-agent-scope-contexts.md#security-and-authority-are-explicit-non-goals) is part of the public contract. These mechanisms prove composition and ownership behavior inside one trusted process; they do not prove confinement or parent-to-child non-escalation. diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index a5f294f76d..47d9ec0473 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -24,7 +24,9 @@ One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferre **Trust premise (governs every engine decision below)**: workflow scripts are MODEL-WRITTEN — the same trust level as the model's existing bash access — so the engine defends against BUGGY scripts, never hostile ones. In scope: `result` never rejects, no unhandled rejections from dropped hook promises, loud rejection of values JSON cannot carry, fatal-vs-null hook discipline, cancellation that always frees the caller. Out of scope, deliberately: adversarial values (throwing/spinning accessors, proxies with hostile traps, prototype forgery, `prepareStackTrace` hijack) AND Node-API escape from the script's context — the vm context shares object machinery with its surrounding realm, so a script can reach the `Function` constructor (`globalThis.constructor.constructor`) and from it `process` and every Node builtin; the absent globals are API surface, not containment, and a worker thread is NOT a security boundary (an escapee holds process-wide privileges — Node's permission model is per-process). Worker-side code MAY run script code while reading script values, and that is accepted: a synchronous spin costs the script its OWN thread (terminated at the post-cancel grace), never the host loop, so containing error VALUES would be cost without a threat model. Genuine sandboxing (isolated-vm, a separate process) remains an engine swap behind the seam, not incremental defenses here. -**Why node:worker_threads**: one run = one worker thread, no pooling — a run is heavyweight (many children), so thread spin-up (~tens of ms) is noise. The script runs in a vm context INSIDE the worker, keeping the script-visible surface exactly the hook contract above (a bare worker realm would leak `setTimeout`/`fetch`/`process` as accidental API), and every `agent()` bridges to `ctx.subagents` by message-port RPC — children are I/O-bound LLM loops and stay on the host loop; the thread isolates the SCRIPT, the only part that can spin. What the thread buys: `start()` never blocks the host (an in-process engine runs the initial synchronous slice inline and cannot kill a spin past the first await — it could only ABANDON such a script, leaving the spin on the host loop), the post-cancel grace ends in a REAL `worker.terminate()`, and the value boundary is serialization by construction. isolated-vm was rejected for actual sandboxing: maintenance mode, `--no-node-snapshot` on EVERY consumer process (including published bins) on Node ≥ 20, node-gyp source-build fallback. Key mechanics (details in the package README): meta shape-validation and a body pre-parse stay HOST-side (preserving the seam's synchronous throws), a ready→go handshake keeps a run cancelled before start from ever executing the body, `cancel()` drives both child-cancel channels host-side (the shared request signal AND each child's explicit `cancel()` — a wedged worker cannot relay its own cancel RPCs), a host-side child registry backs worker-death reaping and `dispose()` quiescence, the wire protocol is enum-keyed payload maps private to the package, and on a termination path `agentsStarted` degrades to the host-observed count. Coverage puts the worker-side session on an in-process `MessageChannel` (real-Worker code is invisible to main-process v8) and proves the built `lib/worker.js` — a second tsdown entry, sanctioned in the workspace-constraints gate by the `"./worker"` subpath export — under plain node in the built-bin smoke gate. +**Why node:worker_threads**: one run uses one unpooled worker because a workflow run is already heavyweight relative to thread startup. The script runs in a vm context inside the worker, keeping the script-visible surface to the hook contract instead of exposing a bare worker realm, while `agent()` bridges by message-port RPC to I/O-bound child loops on the host. This keeps `start()` from blocking the host on the script's synchronous slice, makes the post-cancel deadline end in a real `worker.terminate()`, and gives cross-thread values a serialization boundary by construction. isolated-vm was rejected for its maintenance state, required `--no-node-snapshot` consumer flag on Node ≥ 20, and node-gyp fallback. + +Host-side meta validation and body pre-parsing preserve the seam's synchronous errors, and private enum-keyed payload maps define the wire protocol. Readiness admission, the two child-cancellation channels, worker-death reaping, result precedence, and disposal quiescence preserve the subagent run contract across that wire; the [agent-scope runtime-design RFC](../architecture/2026-07-12-agent-scope-runtime-design.md#workflow-integration-preserves-the-subagent-contract) owns those race algorithms. Coverage uses an in-process `MessageChannel` for worker-side logic that main-process V8 coverage cannot see and separately proves the built `lib/worker.js`—a second tsdown entry sanctioned by the `"./worker"` subpath export—under plain Node in the built-bin smoke gate. **Meta as data, never evaluated**: the meta block reaches the seam as a plain JSON request field (the tool's schema-validated `meta` parameter) and the engine only shape-validates it, every violation named. This is a host-isolation invariant, not a convenience: evaluating a meta literal host-side — even one contractually "pure", in an empty timed vm context — hands script-controlled getters a host stack with no timeout the moment the result is READ, defeating the exact spin isolation the worker thread buys. @@ -38,10 +40,9 @@ A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, awai `SubagentStartRequest.outputSchema` is implemented by `dsh-subagent-inprocess` for both in-process backends. Each structured child receives its own scoped capture tool, instruction, and enforcement registrations on `child.ctx`; concurrent children can use different schemas without sharing mutable policy, and disposing the child removes the entire attachment. -- **Assembly is owner-protected.** The child registers `structured_output` with the run's real schema plus an order-190 instruction, then `systemPrompt.protect()` restores their canonical presence and definition after the complete assembly waterfall. Restored entries anchor before the first surviving later unprotected canonical neighbor, or at the end, without undoing listener ordering of unprotected entries. In native and both modes the capture tool remains a native wire tool. In pure Code Mode its canonical native presence is absent, so protection removes injected copies while the scoped tool remains in the generated SDK; the Code Mode owner independently protects `tools:sdk` and the reserved `run_code` transport. The loop logs the final assembly as `request/header`, keeping the demand reconstructable. -- **Capture uses a two-level commit.** The capture body validates and stages a cloned value in a `WeakMap` keyed by that immutable execution object; only the observe-only `tools/result` notification commits it when the authoritative JSON-safe result after pre-policy, guards, around dispatch, post-policy, and outer error normalization succeeds. A capture called from a `run_code` program carries only the enclosing execution's opaque token as `parent`: inner success becomes pending, and commits when that token matches the enclosing transport's own successful `tools/result`. An outer runtime failure or post-policy block therefore cannot report structured success, and the observer never receives a live outer execution reference. -- **Finality is monotonic within and after the step.** A scoped `ctx.tools.guard()` denies calls after capture has become pending or committed, and it runs after the entire extensible `tools/pre-execute` waterfall so listener order cannot force-allow a later side effect. After the step, scoped serial `agent/turn-stop` runs after ordinary continuation and steering folding; a captured child stops with no extra model step, and neither a continuation wrapper nor late steering can resurrect it. -- **Schema and failure behavior stay explicit.** `start()` clones the schema so caller mutation cannot drift enforcement. `ToolArgsError` keeps validation retry inside the same turn. A child that finishes cleanly without a committed capture settles `error` to the parent; there is no re-prompt loop. `StructuredOutputSchema` is the raw enforceable JSON-Schema subset in `dsh-tools` (single-string `type`, `properties`/`required`/`additionalProperties`, `items`, scalar `enum`/`const`), and unsupported keywords fail loudly because that wire data becomes the capture tool's parameters verbatim. +An output schema makes a schema-valid committed capture mandatory for successful child completion. The scoped runtime preserves the canonical capture tool and instruction, commits only a successful final outcome—including the enclosing `run_code` outcome for an SDK call—denies later side effects after capture becomes pending, and stops the child without another model step after commit. A validation failure remains a retryable tool error; clean completion without a committed capture settles as an error. + +`StructuredOutputSchema` is the raw enforceable JSON-Schema subset in `dsh-tools` (single-string `type`, `properties`/`required`/`additionalProperties`, `items`, scalar `enum`/`const`), and unsupported keywords fail loudly because that wire data becomes the capture tool's parameters verbatim. The [agent-scope runtime-design RFC](../architecture/2026-07-12-agent-scope-runtime-design.md#structured-output-is-a-child-owned-terminal-protocol) owns the assembly, commit, guard, and terminal-stop correctness algorithms. ## Deferred (documented non-goals of this cut) diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index 84a3877298..ad34cbd76d 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -31,7 +31,7 @@ Agent *creation* is provided by the plugin implementing `AgentFactory` (`dsh-age The lifecycle edges have two important local caveats. `agent/created` runs after scoped setup and after both session and agent registry entries exist, but concrete driving remains locked until the immediately following `agent/session-start`; that non-vetoing notification is the first supported startup injection point. `agent/disposed` always means the exact agent has left the registry. AgentLoop emits it after its driver is quiescent, while ordered teardown may still be detaching the session and unwinding the scope; custom agents registered directly own any stronger driver-ordering contract themselves. -Most interception points are cooperative waterfalls returning seam-specific decisions. `agent/pre-step` is a serial surface-mutation checkpoint, while `agent/turn-stop` is the owner-final exception: it runs after ordinary continuation and steering folding, and its terminal state remains through turn close and flush so steering from those later listeners cannot create an extra step or turn. Ordinary queued prompts remain intact. The full rationale is in [the agent-scope RFC](../../../docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md#owner-final-policy-boundaries). +Most interception points are cooperative waterfalls returning seam-specific decisions. `agent/pre-step` is a serial surface-mutation checkpoint, while `agent/turn-stop` is the owner-final exception: it runs after ordinary continuation and steering folding, and its terminal state remains through turn close and flush so steering from those later listeners cannot create an extra step or turn. Ordinary queued prompts remain intact. The full rationale is in the [agent-scope runtime-design RFC](../../../docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md#owner-final-policy-four-narrow-boundaries). Turn and step boundaries and the model token stream are durable `session/event` facts rather than mirrored `agent/*` notifications. Consumers read `turn/*`, `step/*`, and `assistant/chunk` from the session feed; tool policy and outcome observation belong to the complete pipeline documented by [`dsh-tools`](../tools/README.md). From a34801df4bcf079fc8f8580b80b474387cc8ef7b Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 16:54:37 +0800 Subject: [PATCH 214/232] fix(agent-loop): own queued message input --- docs/cordis-catalog/events.md | 28 ++-- docs/core-data-structures/core.md | 13 +- docs/event-producer-consumer.md | 26 ++-- .../2026-07-12-agent-scope-runtime-design.md | 3 + packages/core/agent-loop/README.md | 2 +- packages/core/agent-loop/src/agent.ts | 47 +++++-- packages/core/agent-loop/src/loop.ts | 7 +- .../agent-loop/tests/coverage-edges.spec.ts | 35 ++--- .../agent-loop/tests/review-fixes.spec.ts | 123 +++++++++++++++++- packages/core/agent/README.md | 4 +- packages/core/agent/src/types.ts | 24 +++- 11 files changed, 240 insertions(+), 72 deletions(-) diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index d59bc617d0..b69ed834b3 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -23,7 +23,7 @@ An agent's fully composed scoped world was published in the AgentRegistry. Its s Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:307`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:316`](../../packages/core/agent/src/types.ts) ### `agent/disposed` — emit @@ -35,7 +35,7 @@ An agent was removed from the registry. The concrete AgentLoop lifecycle emits t Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:322`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:331`](../../packages/core/agent/src/types.ts) ### `agent/error` — emit @@ -47,7 +47,7 @@ A step or turn errored. The loop reports a failure here (plus the logger) even w Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:596`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:608`](../../packages/core/agent/src/types.ts) ### `agent/pre-step` — serial @@ -61,7 +61,7 @@ Serial (awaited in registration order), not a waterfall: a listener mutates the Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:428`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:440`](../../packages/core/agent/src/types.ts) ### `agent/prompt-submit` — waterfall @@ -73,11 +73,11 @@ Waterfall: decide what happens to ONE drained queued message before it becomes a Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:446`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:458`](../../packages/core/agent/src/types.ts) ### `agent/queued` — emit -A message entered the agent's inbox (queued or steering). `source` is the resolved source (defaults applied), not the caller's raw options. +A message entered the agent's inbox (queued or steering). Content and the resolved source are the detached, deeply-frozen values retained by the inbox; the `info` wrapper is frozen too, so one listener cannot rewrite what another listener observes. `source` has defaults applied and is not the caller's raw options. ```ts cordis-catalog 'agent/queued'(this: Scoped, agent: Agent, content: ContentBlock[], info: { source: MessageSource; steering: boolean }): void @@ -85,7 +85,7 @@ A message entered the agent's inbox (queued or steering). `source` is the resolv Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:350`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:362`](../../packages/core/agent/src/types.ts) ### `agent/request` — waterfall @@ -97,7 +97,7 @@ Waterfall: shape the step's call configuration — model switching, sampling ove Types: [Agent](../core-data-structures/core.md) · [LlmCallConfig](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:475`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:487`](../../packages/core/agent/src/types.ts) ### `agent/session-prefix` — waterfall @@ -113,7 +113,7 @@ The seed is a frozen empty list; a contributing listener returns a NEW array — Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:527`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:539`](../../packages/core/agent/src/types.ts) ### `agent/session-start` — emit @@ -125,7 +125,7 @@ The agent's session lifecycle began, fired once before its first turn. `source` Types: [Agent](../core-data-structures/core.md) · [SessionStartSource](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:371`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:383`](../../packages/core/agent/src/types.ts) ### `agent/status` — emit @@ -137,7 +137,7 @@ Agent status changed (`idle` ⇄ `running`, or → `disposed`). Drive lifecycle Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:336`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:345`](../../packages/core/agent/src/types.ts) ### `agent/step-result` — waterfall @@ -149,7 +149,7 @@ Waterfall: post-process the assembled assistant Message before tool dispatch (va Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:542`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:554`](../../packages/core/agent/src/types.ts) ### `agent/turn-continuation` — waterfall @@ -161,7 +161,7 @@ Waterfall: override the turn-continuation decision via a typed ContinuationDecis Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:560`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:572`](../../packages/core/agent/src/types.ts) ### `agent/turn-stop` — serial @@ -173,7 +173,7 @@ Serial terminal-stop checkpoint after the ordinary `agent/turn-continuation` wat Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:579`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:591`](../../packages/core/agent/src/types.ts) ## `approval/*` diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index 7937018b9f..bd533fe5c4 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -267,12 +267,21 @@ interface Agent { */ readonly ctx: Context - /** Queue a user message. Starts a turn when idle; otherwise waits for the next turn. */ + /** + * Queue a user message. Starts a turn when idle; otherwise waits for the next + * turn. Content and the resolved source are accepted as one detached, + * deeply-frozen lossless-JSON record before notification or enqueue, so + * caller or `agent/queued` listener in-place mutation cannot change later + * log/model input. Throws synchronously when either value is not losslessly + * JSON-serializable; `agent/prompt-submit` may still return an explicit + * replacement. + */ send(content: ContentBlock[], options?: SendOptions): void /** * Steer a running turn: content is injected between steps of the current - * turn. When idle, behaves like {@link send}. + * turn. Uses the same owned-value and synchronous-validation boundary as + * {@link send}; when idle, behaves exactly like that method. */ steer(content: ContentBlock[], options?: SendOptions): void diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index b8bcde4c9a..17e9e74f50 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -7,19 +7,19 @@ This matrix shows which packages dispatch each harness-owned event and which pac | Event | Mode | Declared in | Dispatchers | Listeners | | --- | --- | --- | --- | --- | -| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:307`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:322`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:596`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:428`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic), [`user-approval`](../packages/ui/user-approval) | -| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:446`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | -| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:350`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | -| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:475`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:527`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`tool-skill`](../packages/skill/tool-skill) | -| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:371`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`invariants`](../packages/support/invariants) | -| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:336`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:542`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | -| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:560`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `agent/turn-stop` | `serial` | [`packages/core/agent/src/types.ts:579`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`strictSerial (serial)`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | +| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:316`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:331`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:608`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:440`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic), [`user-approval`](../packages/ui/user-approval) | +| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:458`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | +| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:362`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:487`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:539`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`tool-skill`](../packages/skill/tool-skill) | +| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:383`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`invariants`](../packages/support/invariants) | +| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:345`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | +| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:554`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | +| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:572`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | +| `agent/turn-stop` | `serial` | [`packages/core/agent/src/types.ts:591`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`strictSerial (serial)`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | `approval/request` | `waterfall` | [`packages/ui/user-approval/src/index.ts:72`](../packages/ui/user-approval/src/index.ts) | [`user-approval`](../packages/ui/user-approval) (`waterfall`) | [`acp`](../packages/ui/acp) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | diff --git a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md index 0fbd3d647e..c94f0cee63 100644 --- a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md +++ b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md @@ -419,6 +419,7 @@ Capture does not imply uniform eager callback type-checking. Agent `setup` is ca |---|---|---| | Tool and `SubagentProvider` registration | Original callback receiver | Name, flags, schemas, scalar config | | Agent create/resume | Caller context, setup callback | IDs, options, session metadata and seed | +| Agent send/steer | None | Content blocks and resolved message source | | Approval request | Agent and abort signal | Tool name, call ID, and reason | | Tool execution | Agent, signal, registry-minted parent token | Call identity and arguments | | Session append/load | Session identity | Header and event envelopes | @@ -426,6 +427,8 @@ Capture does not imply uniform eager callback type-checking. Agent `setup` is ca Before agent setup can run, the concrete agent pins its accepted ID, options, and session and binds `ctx` once. Registry detach closures likewise close over their accepted keys instead of rereading mutable public fields. +`send()` and running `steer()` resolve the message source once and materialize `{ content, source }` as one detached, deeply frozen lossless-JSON record before `agent/queued` or inbox insertion. The notification and FIFO share that accepted content and source; its metadata wrapper is frozen separately, so neither retained caller references nor an earlier notification listener can rewrite what a later listener, the session log, or the model sees. Invalid content or source throws synchronously without notification, enqueue, or loop wakeup; idle `steer()` delegates to the same `send()` boundary. The later `agent/prompt-submit` waterfall can still replace a queued prompt by returning new content; ownership forbids in-place mutation, not the explicit rewrite protocol. + A stateful getter shows why validation and ownership must use the same capture: ```js diff --git a/packages/core/agent-loop/README.md b/packages/core/agent-loop/README.md index daf7e10d76..8f6b9604c5 100644 --- a/packages/core/agent-loop/README.md +++ b/packages/core/agent-loop/README.md @@ -44,7 +44,7 @@ Agents listed in config are auto-created at startup. `cwd` applies only to fresh - `ReactLoopAgent` — the concrete `Agent` implementation. Its inbox is a JavaScript native-private field, and one prepared session can be claimed by only one concrete driver. Everything observable happens through session events and the `agent/*` event taxonomy. -`Inbox`, `runLoop`, and the instance-bound enable/start controls are package-internal. The package root does not export them, and the package exports map exposes no `./src/*` escape hatch; lifecycle owners create agents through `ctx.agents` rather than constructing or starting the driver internals. +`Inbox`, `runLoop`, and the instance-bound enable/start controls are package-internal. The package root does not export them, and the package exports map exposes no `./src/*` escape hatch; lifecycle owners create agents through `ctx.agents` rather than constructing or starting the driver internals. `ReactLoopAgent.send()` and running `steer()` materialize content plus resolved source once as detached, deeply frozen lossless JSON, then share that accepted record between `agent/queued` and the inbox; malformed data throws before either boundary. ### Loop lifecycle (`loop.ts`) diff --git a/packages/core/agent-loop/src/agent.ts b/packages/core/agent-loop/src/agent.ts index 6ea60c4958..16f10168b6 100644 --- a/packages/core/agent-loop/src/agent.ts +++ b/packages/core/agent-loop/src/agent.ts @@ -12,8 +12,8 @@ import type { AgentId, AgentOptions, AgentStatus, SendOptions } from '@deepseek- import type { Agent } from '@deepseek-ai/dsh-agent' import { deepFreeze } from '@deepseek-ai/dsh-llm' import type { ContentBlock, MessageSource } from '@deepseek-ai/dsh-llm' -import type { Session } from '@deepseek-ai/dsh-session' -import { Inbox } from './inbox.ts' +import { snapshotJsonValue, type Session } from '@deepseek-ai/dsh-session' +import { Inbox, type InboxMessage } from './inbox.ts' import { isTurnOpen, lastTurnNumber, runLoop } from './loop.ts' /** Agents whose rollback-covered publication enabled driving. */ @@ -213,6 +213,26 @@ export class ReactLoopAgent implements Agent { return options?.source ?? { kind: 'user' } } + /** + * Accept one public send/steer payload as the exact detached record shared by + * the live notification and inbox. Lossless-JSON materialization reads every + * nested field once; deep freeze prevents an observer from rewriting queued + * work before the loop drains it. + */ + private acceptInboxMessage(content: ContentBlock[], options?: SendOptions): InboxMessage { + const source = this.resolveSource(options) + const accepted = snapshotJsonValue({ content, source }) + if (accepted === undefined) { + throw new TypeError('agent message content and source must be losslessly JSON-serializable') + } + return deepFreeze(accepted) + } + + /** Reject a driving operation once teardown has synchronously closed the agent. */ + private assertNotDisposed(): void { + if (this._status === 'disposed') throw new Error(`agent "${this.id}" is disposed`) + } + /** Reject every driving verb while creation setup still owns the agent. */ private assertDriveEnabled(action: string): void { if (driveEnabledAgents.has(this)) return @@ -221,24 +241,29 @@ export class ReactLoopAgent implements Agent { send(content: ContentBlock[], options?: SendOptions): void { this.assertDriveEnabled('send') - if (this._status === 'disposed') throw new Error(`agent "${this.id}" is disposed`) - const source = this.resolveSource(options) - this.#inbox.enqueue({ content, source }) - agentEvents(this.loopCtx, this).emit('agent/queued', content, { source, steering: false }) + this.assertNotDisposed() + const accepted = this.acceptInboxMessage(content, options) + // Materialization invokes caller getters, which may reenter handle disposal. + this.assertNotDisposed() + this.#inbox.enqueue(accepted) + const info = deepFreeze({ source: accepted.source, steering: false }) + agentEvents(this.loopCtx, this).emit('agent/queued', accepted.content, info) } steer(content: ContentBlock[], options?: SendOptions): void { this.assertDriveEnabled('steer') - if (this._status === 'disposed') throw new Error(`agent "${this.id}" is disposed`) + this.assertNotDisposed() if (this._status !== 'running') { this.send(content, options); return } - const source = this.resolveSource(options) - this.#inbox.steer({ content, source }) - agentEvents(this.loopCtx, this).emit('agent/queued', content, { source, steering: true }) + const accepted = this.acceptInboxMessage(content, options) + this.assertNotDisposed() + this.#inbox.steer(accepted) + const info = deepFreeze({ source: accepted.source, steering: true }) + agentEvents(this.loopCtx, this).emit('agent/queued', accepted.content, info) } inject(content: ContentBlock[], options?: SendOptions): void { this.assertDriveEnabled('inject') - if (this._status === 'disposed') throw new Error(`agent "${this.id}" is disposed`) + this.assertNotDisposed() const source = this.resolveSource(options) if (isTurnOpen(this.session)) { // A turn is open in the LOG (decided from the log, not agent status — diff --git a/packages/core/agent-loop/src/loop.ts b/packages/core/agent-loop/src/loop.ts index 8c30e42257..756c007c45 100644 --- a/packages/core/agent-loop/src/loop.ts +++ b/packages/core/agent-loop/src/loop.ts @@ -291,11 +291,15 @@ export async function runLoop(ctx: Context, agent: ReactLoopAgent, handle: LoopH // the previous turn/end), where the persistence backend drops it as a // crash tail (the turn-enclosure RFC). Report via agent/error + the logger only; the // driver survives and moves on. + /* v8 ignore start -- defensive internal-corruption backstop: public + * send/steer input is accepted as lossless JSON before enqueue, and + * runTurn contains every failure after turn/start. */ const err = toError(error) ctx.logger.warn(`agent "${agent.id}": turn ${turn} failed before it started: ${err.message}`) try { events.emit('agent/error', turn, 0, err) } catch { /* contained: a throwing agent/error listener must not kill the driver */ } + /* v8 ignore stop */ } // Reset the cancel marker UNCONDITIONALLY here, after the turn returns and @@ -730,9 +734,10 @@ async function runTurn( // `closeStep()` IS idempotent (guarded by `stepOpen`) — it may have run // already in a step branch, so running it again is a safe no-op. Absent // turn/start means the append threw BEFORE its push (a non-serializable - // trigger — impossible for our fixed trigger); nothing was opened, so rethrow + // trigger outside the public lossless-JSON boundary); nothing was opened, so rethrow // to the runLoop backstop. const turnStartLogged = session.events.some(e => e.type === 'turn/start' && e.data.turn === turn) + /* v8 ignore next -- defensive internal-corruption path; public inbox input is lossless JSON */ if (!turnStartLogged) throw error closeStep() // Choose the close reason. Disposal wins only if no error was already diff --git a/packages/core/agent-loop/tests/coverage-edges.spec.ts b/packages/core/agent-loop/tests/coverage-edges.spec.ts index 7a044bfb57..ee58fcd66e 100644 --- a/packages/core/agent-loop/tests/coverage-edges.spec.ts +++ b/packages/core/agent-loop/tests/coverage-edges.spec.ts @@ -35,31 +35,24 @@ function send(agent: ReactLoopAgent, text: string) { agent.send([{ type: 'text', text }]) } -describe('turn boundary listener throws (handled in-turn, loop survives)', () => { - it('a pre-push turn/start failure (non-serializable source) is rethrown to the runLoop backstop', async () => { - // A non-serializable message source makes the turn/start append throw BEFORE - // the event is pushed (Session.append validates before push), so turn/start - // never enters the log. runTurn sees no logged turn/start and rethrows; the - // runLoop backstop reports via agent/error (step 0) + the logger and the - // driver survives. This is the ONLY path that reaches the backstop. - const adapter = new MockAdapter([textResponse('turn 2')]) +describe('inbox acceptance', () => { + it('rejects non-serializable content or source synchronously before notification or enqueue', async () => { + const adapter = new MockAdapter([textResponse('turn 1')]) const ctx = await harness(adapter) const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + let queued = 0 + ctx.on('agent/queued', () => { queued += 1 }) - const errors: { turn: number; step: number; message: string }[] = [] - ctx.on('agent/error', (_a, turn, step, error) => void errors.push({ turn, step, message: error.message })) + expect(() => { + agent.send([{ type: 'text', text: 'first', bad: 1n } as never]) + }).toThrow(/losslessly JSON-serializable/) + expect(() => { + agent.send([{ type: 'text', text: 'first' }], { source: { kind: 'plugin', plugin: 'p', bad: 1n } as never }) + }).toThrow(/losslessly JSON-serializable/) + expect(queued).toBe(0) + expect(agent.session.events).toHaveLength(0) - // A non-serializable source (BigInt) on the queued message. - agent.send([{ type: 'text', text: 'first' }], { source: { kind: 'plugin', plugin: 'p', bad: 1n } as never }) - await waitForIdle(ctx, agent) - - expect(errors).toHaveLength(1) - expect(errors[0]!.step).toBe(0) - expect(errors[0]!.message).toMatch(/non-JSON-serializable/) - // No turn boundary was written (the turn/start append threw before push). - expect(agent.session.events.some(e => e.type === 'turn/start')).toBe(false) - - // loop survives: a well-formed second turn runs normally. + // The rejected value never woke or poisoned the loop; a valid message runs. send(agent, 'second') await waitForIdle(ctx, agent) expect(adapter.requests).toHaveLength(1) diff --git a/packages/core/agent-loop/tests/review-fixes.spec.ts b/packages/core/agent-loop/tests/review-fixes.spec.ts index 3cfa743b65..4c68ac53bd 100644 --- a/packages/core/agent-loop/tests/review-fixes.spec.ts +++ b/packages/core/agent-loop/tests/review-fixes.spec.ts @@ -1,6 +1,6 @@ import { describe, expect, it } from 'vitest' import { Context } from 'cordis' -import LlmService, { CallId, MessageSource, StreamChunk } from '@deepseek-ai/dsh-llm' +import LlmService, { CallId, ContentBlock, MessageSource, StreamChunk } from '@deepseek-ai/dsh-llm' import SessionStore, { Session, SessionEvent, SessionId, TurnEndReason } from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry, { defineTool } from '@deepseek-ai/dsh-tools' @@ -437,6 +437,127 @@ describe('MEDIUM: misc registry and config fixes', () => { const steeringSources = agent.session.events.flatMap(e => e.type === 'steering/message' ? [e.data.source] : []) expect(steeringSources).toEqual([{ kind: 'plugin', plugin: 'goal' }]) }) + + it('send() owns content and source before notification and delivery', async () => { + const adapter = new MockAdapter([textResponse('done')]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('owned-send'), { model: 'mock' }) + const content = [{ type: 'text' as const, text: 'accepted-send' }] + const source = { kind: 'plugin' as const, plugin: 'accepted-source' } + let notifiedContent: ContentBlock[] | undefined + let notifiedSource: MessageSource | undefined + let notifiedInfoFrozen = false + ctx.on('agent/queued', (subject, acceptedContent, info) => { + if (subject !== agent || info.steering) return + // Retain the exact notification references: cloning here would test the + // listener's copy rather than the event/inbox ownership boundary. + notifiedContent = acceptedContent + notifiedSource = info.source + notifiedInfoFrozen = Object.isFrozen(info) + }) + + agent.send(content, { source }) + content[0]!.text = 'caller-mutated-send' + source.plugin = 'caller-mutated-source' + await waitForIdle(ctx, agent) + + expect(notifiedContent).toEqual([{ type: 'text', text: 'accepted-send' }]) + expect(notifiedSource).toEqual({ kind: 'plugin', plugin: 'accepted-source' }) + expect(Object.isFrozen(notifiedContent)).toBe(true) + expect(Object.isFrozen(notifiedContent?.[0])).toBe(true) + expect(Object.isFrozen(notifiedSource)).toBe(true) + expect(notifiedInfoFrozen).toBe(true) + const recorded = agent.session.events.flatMap(event => event.type === 'user/message' ? [event.data] : []) + expect(recorded).toContainEqual({ + content: [{ type: 'text', text: 'accepted-send' }], + source: { kind: 'plugin', plugin: 'accepted-source' }, + }) + const request = JSON.stringify(adapter.requests[0]!.messages) + expect(request).toContain('accepted-send') + expect(request).not.toContain('caller-mutated-send') + }) + + it('send() rechecks disposal after materializing caller getters', async () => { + const adapter = new MockAdapter([textResponse('unused')]) + const ctx = await harness(adapter) + const handle = await ctx.agents.create({ + agentId: AgentId('reentrant-send-dispose'), + sessionId: SessionId('reentrant-send-dispose-session'), + agentOptions: { model: 'mock' }, + }) + const { agent } = handle + let queued = 0 + ctx.on('agent/queued', subject => void (queued += Number(subject === agent))) + const content = [{ + type: 'text' as const, + get text() { + void handle.dispose() + return 'accepted-after-dispose' + }, + }] + + expect(() => { agent.send(content) }).toThrow(/agent "reentrant-send-dispose" is disposed/) + await handle.dispose() + + expect(queued).toBe(0) + expect(agent.session.events).toHaveLength(0) + expect(adapter.requests).toHaveLength(0) + }) + + it('running steer() owns content and source before notification and delivery', async () => { + const adapter = new MockAdapter([toolCallResponse('c1', 'gate', {}), textResponse('done')]) + const ctx = await harness(adapter) + const agent = ctx.agentLoop.create(AgentId('owned-steer'), { model: 'mock' }) + const entered = Promise.withResolvers() + const release = Promise.withResolvers() + ctx.tools.register(defineTool({ + name: 'gate', + description: '', + parameters: {}, + async execute() { + entered.resolve(undefined) + await release.promise + return [{ type: 'text', text: 'tool done' }] + }, + })) + let notifiedContent: ContentBlock[] | undefined + let notifiedSource: MessageSource | undefined + let notifiedInfoFrozen = false + ctx.on('agent/queued', (subject, acceptedContent, info) => { + if (subject !== agent || !info.steering) return + notifiedContent = acceptedContent + notifiedSource = info.source + notifiedInfoFrozen = Object.isFrozen(info) + }) + + agent.send([{ type: 'text', text: 'start' }]) + await entered.promise + expect(agent.status).toBe('running') + const content = [{ type: 'text' as const, text: 'accepted-steer' }] + const source = { kind: 'plugin' as const, plugin: 'accepted-source' } + agent.steer(content, { source }) + content[0]!.text = 'caller-mutated-steer' + source.plugin = 'caller-mutated-source' + const idle = waitForIdle(ctx, agent) + release.resolve(undefined) + await idle + + expect(notifiedContent).toEqual([{ type: 'text', text: 'accepted-steer' }]) + expect(notifiedSource).toEqual({ kind: 'plugin', plugin: 'accepted-source' }) + expect(Object.isFrozen(notifiedContent)).toBe(true) + expect(Object.isFrozen(notifiedContent?.[0])).toBe(true) + expect(Object.isFrozen(notifiedSource)).toBe(true) + expect(notifiedInfoFrozen).toBe(true) + const recorded = agent.session.events.flatMap(event => event.type === 'steering/message' ? [event.data] : []) + expect(recorded).toContainEqual({ + turn: 1, + content: [{ type: 'text', text: 'accepted-steer' }], + source: { kind: 'plugin', plugin: 'accepted-source' }, + }) + const request = JSON.stringify(adapter.requests[1]!.messages) + expect(request).toContain('accepted-steer') + expect(request).not.toContain('caller-mutated-steer') + }) }) describe('MEDIUM: turn numbering continues across seeded (forked) sessions', () => { diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index ad34cbd76d..3663808847 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -39,8 +39,8 @@ Turn and step boundaries and the model token stream are durable `session/event` The handle every plugin programs against: -- `agent.send(content, options?)` — queue a message; starts a turn when idle -- `agent.steer(content, options?)` — steer a running turn (inject between steps); behaves like `send` when idle +- `agent.send(content, options?)` — queue a message; starts a turn when idle. Content and resolved source become one detached, deeply frozen lossless-JSON record before `agent/queued` and enqueue; invalid data throws synchronously, and caller or notification-listener in-place mutation cannot change the log or model input (`agent/prompt-submit` still rewrites by returning replacement content). +- `agent.steer(content, options?)` — steer a running turn (inject between steps); uses the same owned acceptance boundary and behaves like `send` when idle - `agent.inject(content, options?)` — inject in-session context (context/message event); the next request sees it. Does not run the model. While a turn is open it joins that turn; while idle it is wrapped in a one-shot `injection` turn so every event stays turn-enclosed ([the turn-enclosure invariant](../../../docs/rfc/implemented/architecture/2026-06-15-turn-enclosure-invariant.md)) - `agent.cancel(reason?)` — cancel ALL pending work: clears the queued + steering FIFOs, aborts the in-flight step, and drops a turn about to start (the pre-step window) so a queued-but-not-started prompt never runs. A UI/ACP `session/cancel` maps to this. The single public stop primitive. Idle with nothing pending → a safe no-op. - `agent.whenIdle()` — resolve once the agent reaches quiescence after settling out of `running` (idle → immediately; disposed → awaits the loop exit). A non-owner's quiescence-observation hook: it observes the work settling WITHOUT tearing the agent down. Teardown is separate — a lifecycle owner stops and unregisters via `AgentHandle.dispose()`, which awaits the loop exit directly. diff --git a/packages/core/agent/src/types.ts b/packages/core/agent/src/types.ts index 0e914888b9..419cc9d1fe 100644 --- a/packages/core/agent/src/types.ts +++ b/packages/core/agent/src/types.ts @@ -202,12 +202,21 @@ export interface Agent { */ readonly ctx: Context - /** Queue a user message. Starts a turn when idle; otherwise waits for the next turn. */ + /** + * Queue a user message. Starts a turn when idle; otherwise waits for the next + * turn. Content and the resolved source are accepted as one detached, + * deeply-frozen lossless-JSON record before notification or enqueue, so + * caller or `agent/queued` listener in-place mutation cannot change later + * log/model input. Throws synchronously when either value is not losslessly + * JSON-serializable; `agent/prompt-submit` may still return an explicit + * replacement. + */ send(content: ContentBlock[], options?: SendOptions): void /** * Steer a running turn: content is injected between steps of the current - * turn. When idle, behaves like {@link send}. + * turn. Uses the same owned-value and synchronous-validation boundary as + * {@link send}; when idle, behaves exactly like that method. */ steer(content: ContentBlock[], options?: SendOptions): void @@ -335,11 +344,14 @@ declare module 'cordis' { */ 'agent/status'(this: Scoped, agent: Agent, status: AgentStatus): void /** - * A message entered the agent's inbox (queued or steering). `source` is - * the resolved source (defaults applied), not the caller's raw options. + * A message entered the agent's inbox (queued or steering). Content and the + * resolved source are the detached, deeply-frozen values retained by the + * inbox; the `info` wrapper is frozen too, so one listener cannot rewrite + * what another listener observes. `source` has defaults applied and is not + * the caller's raw options. * @param agent - the agent whose inbox received the message. - * @param content - the enqueued content blocks, verbatim. - * @param info - the resolved source plus whether it entered as steering. + * @param content - the accepted content blocks retained by the inbox. + * @param info - the accepted source plus whether it entered as steering. * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered * through `agent.ctx` fires only for that agent's dispatches; a listener on a * plain plugin context fires for every agent. The dispatch `this` is the From 11a074b6644736234c88c4ff21ca36edeab400b7 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 17:17:38 +0800 Subject: [PATCH 215/232] docs(rfc): add agent-scope diagrams --- .../2026-07-08-agent-scope-contexts.md | 38 ++++++++++++++ .../2026-07-12-agent-scope-runtime-design.md | 49 +++++++++++++++++++ 2 files changed, 87 insertions(+) diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index 9f380e6dc1..024eb05f82 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -27,6 +27,24 @@ The contract has four parts: The scope is deliberately flat. Resolution never walks parent or sibling scopes. Parent ownership links lifetimes without importing registrations. +For scope-aware registries and default listener routing, the whole mechanism can be read from left to right: the registering context chooses a layer, while the agent named by an operation chooses which one local layer joins the deployment-global layer. + +```mermaid +flowchart LR + plain["Plain plugin context
cleanup follows the plugin"] -->|"registers into"| globalLayer["Deployment-global layer"] + agentAContext["agentA.ctx
cleanup follows Agent A"] -->|"registers into"| agentALayer["Agent A layer"] + agentBContext["agentB.ctx
cleanup follows Agent B"] -->|"registers into"| agentBLayer["Agent B layer"] + + operationA["Operation for Agent A"] -->|"selects"| agentAView["Agent A view
eligible globals plus A local only"] + globalLayer --> agentAView + agentALayer --> agentAView + operationB["Operation for Agent B"] -->|"selects"| agentBView["Agent B view
eligible globals plus B local only"] + globalLayer --> agentBView + agentBLayer --> agentBView +``` + +The missing cross-edges describe registry resolution and default listener routing: Agent A's registered values and ordinary scoped listeners do not enter Agent B's view, and a parent's layer does not enter a child's view merely because the parent owns the child's lifetime. For scope-filtered events, `{ global: true }` is the explicit opt-in exception; it can observe across scopes while cleanup still follows the registering agent. Registry-membership notifications are a separate unfiltered event class described below. + The companion [runtime-design RFC](2026-07-12-agent-scope-runtime-design.md) explains how the implementation preserves this contract under Cordis dispatch, JavaScript mutation and reentrancy, asynchronous setup, rollback, and racing disposal. ### Registration origin selects visibility and cleanup @@ -103,6 +121,26 @@ The returned promise resolves only after setup, ordered lifecycle notification, The calling Cordis context and AgentLoop are structural co-owners. Unloading either disposes the agent, so creation through a short-lived plugin context intentionally gives the agent that shorter lifetime. +The lifecycle keeps the local layer private until setup succeeds and keeps it alive until final work has drained: + +```mermaid +flowchart TB + request["Create or resume"] --> reserve["Reserve agent and session IDs"] + reserve --> privateWorld["Load or build private session, scope, and driver"] + privateWorld --> setup["Await setup through agent.ctx"] + setup --> publish["Publish session and agent, then start the loop"] + publish --> live["Return the live handle"] + + privateWorld -->|"load or preparation failure, or owner loss"| rollback["Rollback startup
no handle escapes"] + setup -->|"setup failure or owner loss"| rollback + publish -->|"publication failure or owner loss"| rollback + live -->|"handle disposal, owner unload, or AgentLoop unload"| settle["Quiesce prepared or running work"] + rollback --> settle + settle --> detach["Detach any published agent, then session"] + detach --> revoke["Dispose any created agent scope"] + revoke --> release["Release acquired IDs"] +``` + Contributors should put agent-local activation inside `setup` and always dispose the returned handle. Code that needs to observe a live agent waits for `create()`/`resume()` to resolve rather than polling the registries during setup. ## Tool restrictions resolve against a live flat view diff --git a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md index c94f0cee63..988a30968f 100644 --- a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md +++ b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md @@ -249,6 +249,37 @@ Two services split the public API from the implementation. `AgentRegistry`, reac | Publish and start | Session, agent, and lifecycle notifications appear in order | Liveness is checked between observable phases | | Dispose | Driver drains, registries detach, scope unwinds, IDs release | All owner paths join one completion promise | +The implementation treats success, rollback, handle disposal, caller unload, and AgentLoop unload as entrances to one owned transaction rather than separate cleanup algorithms: + +```mermaid +flowchart TB + caller["Caller context owner"] --> transaction["Owned create or resume transaction"] + factory["AgentLoop structural owner"] --> transaction + + subgraph creation["Create or resume"] + transaction --> reserve["Reserve both IDs and install trackers"] + reserve --> prepare["Load persistence or prepare the session"] + prepare --> lifecycle["Install the complete caller-owned lifecycle"] + lifecycle --> setup["Await unpublished setup"] + setup --> enter["Enter session and agent registries"] + enter --> announce["Emit session/created, then agent/created"] + announce --> start["Enable driving, emit agent/session-start, start driver"] + end + + transaction -.->|"reservation, load, or preparation failure before lifecycle handoff"| earlyRollback["Release acquired tracking and reservations"] + start --> live["Live handle"] + lifecycle -.->|"failure or owner loss before a handle escapes"| dispose["Join the lifecycle cleanup boundary"] + live -->|"dispose or either owner unloads"| dispose + + subgraph teardown["Reverse-order teardown"] + dispose --> barrier["Wait for synchronous publication to unwind"] + barrier --> drain["Stop driver and complete final flushes"] + drain --> detach["Detach agent, then session"] + detach --> scope["Dispose agent scope to quiescence"] + scope --> release["Release session and agent IDs"] + end +``` + The [public lifecycle contract](2026-07-08-agent-scope-contexts.md#creation-publishes-after-setup-disposal-revokes-after-work-stops) defines what callers observe. The following sections justify each ownership and ordering fact behind that contract. ### Reservations precede awaiting; lifecycle ownership precedes setup @@ -429,6 +460,24 @@ Before agent setup can run, the concrete agent pins its accepted ID, options, an `send()` and running `steer()` resolve the message source once and materialize `{ content, source }` as one detached, deeply frozen lossless-JSON record before `agent/queued` or inbox insertion. The notification and FIFO share that accepted content and source; its metadata wrapper is frozen separately, so neither retained caller references nor an earlier notification listener can rewrite what a later listener, the session log, or the model sees. Invalid content or source throws synchronously without notification, enqueue, or loop wakeup; idle `steer()` delegates to the same `send()` boundary. The later `agent/prompt-submit` waterfall can still replace a queued prompt by returning new content; ownership forbids in-place mutation, not the explicit rewrite protocol. +The inbox path makes that accepted-value boundary concrete. Getter evaluation happens during materialization, so liveness is rechecked before the accepted record crosses into an inbox FIFO: + +```mermaid +flowchart TB + callerInput["Caller-owned content and source"] --> initialCheck["Require a live, drive-enabled agent"] + initialCheck --> accept["Resolve source once; materialize and deep-freeze one record"] + accept -->|"invalid lossless JSON"| invalidReject["Throw synchronously; no inbox insertion, agent/queued, or loop wakeup"] + accept -->|"accepted"| liveness["Recheck disposal after caller getters"] + liveness -->|"disposed reentrantly"| disposedReject["Throw disposed; do not insert or announce the message"] + liveness -->|"still live"| inbox["Insert the record into the queued or steering FIFO"] + inbox -->|"same frozen content and source"| queued["Emit agent/queued with a frozen metadata wrapper"] + inbox -->|"if later drained, read the same owned record"| drain["Loop-owned delivery"] + inbox -->|"cancel before drain"| cancelled["Clear the pending record without delivery"] + inbox -->|"disposal wins before drain"| disposed["Stop delivery; the disposed agent may retain the pending record"] + drain -->|"queued prompt"| prompt["agent/prompt-submit may block or explicitly replace"] + drain -->|"steering consumed by an active turn"| steering["Append steering/message"] +``` + A stateful getter shows why validation and ownership must use the same capture: ```js From 50873b8bd0c03fccefc2b063c72cf7073db955aa Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 18:10:04 +0800 Subject: [PATCH 216/232] docs(rfc): remove redundant lifecycle diagram --- .../2026-07-12-agent-scope-runtime-design.md | 31 ------------------- 1 file changed, 31 deletions(-) diff --git a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md index 988a30968f..318c07ad31 100644 --- a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md +++ b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md @@ -249,37 +249,6 @@ Two services split the public API from the implementation. `AgentRegistry`, reac | Publish and start | Session, agent, and lifecycle notifications appear in order | Liveness is checked between observable phases | | Dispose | Driver drains, registries detach, scope unwinds, IDs release | All owner paths join one completion promise | -The implementation treats success, rollback, handle disposal, caller unload, and AgentLoop unload as entrances to one owned transaction rather than separate cleanup algorithms: - -```mermaid -flowchart TB - caller["Caller context owner"] --> transaction["Owned create or resume transaction"] - factory["AgentLoop structural owner"] --> transaction - - subgraph creation["Create or resume"] - transaction --> reserve["Reserve both IDs and install trackers"] - reserve --> prepare["Load persistence or prepare the session"] - prepare --> lifecycle["Install the complete caller-owned lifecycle"] - lifecycle --> setup["Await unpublished setup"] - setup --> enter["Enter session and agent registries"] - enter --> announce["Emit session/created, then agent/created"] - announce --> start["Enable driving, emit agent/session-start, start driver"] - end - - transaction -.->|"reservation, load, or preparation failure before lifecycle handoff"| earlyRollback["Release acquired tracking and reservations"] - start --> live["Live handle"] - lifecycle -.->|"failure or owner loss before a handle escapes"| dispose["Join the lifecycle cleanup boundary"] - live -->|"dispose or either owner unloads"| dispose - - subgraph teardown["Reverse-order teardown"] - dispose --> barrier["Wait for synchronous publication to unwind"] - barrier --> drain["Stop driver and complete final flushes"] - drain --> detach["Detach agent, then session"] - detach --> scope["Dispose agent scope to quiescence"] - scope --> release["Release session and agent IDs"] - end -``` - The [public lifecycle contract](2026-07-08-agent-scope-contexts.md#creation-publishes-after-setup-disposal-revokes-after-work-stops) defines what callers observe. The following sections justify each ownership and ordering fact behind that contract. ### Reservations precede awaiting; lifecycle ownership precedes setup From e8fed4fb66fcb38c768ec9a3abb4a7a92a70bb08 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 18:57:42 +0800 Subject: [PATCH 217/232] fix(session): contain post-commit observers --- docs/cookbook/extension-cookbook.md | 2 +- docs/cordis-catalog/events.md | 6 +- docs/cordis-catalog/services.md | 2 +- docs/event-producer-consumer.md | 4 +- ...-18-agent-lifecycle-and-ownership-seams.md | 4 +- .../2026-06-30-event-domain-semantics.md | 4 +- .../2026-07-05-reconstructable-requests.md | 2 +- .../2026-07-12-agent-scope-runtime-design.md | 16 +- .../feature/2026-07-06-approval-seam.md | 2 +- ...-20-remove-agent-boundary-mirror-events.md | 2 +- packages/core/agent-loop/src/agent.ts | 36 +- packages/core/agent-loop/src/loop.ts | 114 ++----- packages/core/agent-loop/tests/agent.spec.ts | 6 +- .../agent-loop/tests/coverage-edges.spec.ts | 15 +- packages/core/agent-loop/tests/loop.spec.ts | 13 +- .../agent-loop/tests/review-fixes.spec.ts | 194 +++++++---- packages/core/session/README.md | 10 +- packages/core/session/src/index.ts | 315 +++++++++++++----- packages/core/session/tests/scoped.spec.ts | 49 +++ packages/core/session/tests/session.spec.ts | 315 +++++++++++++++++- packages/support/invariants/README.md | 4 +- packages/support/invariants/src/index.ts | 204 +++++++++--- .../invariants/tests/invariants.spec.ts | 105 +++++- packages/ui/acp/README.md | 2 +- packages/ui/acp/src/index.ts | 60 ++-- packages/ui/acp/tests/dispose.spec.ts | 6 +- packages/ui/acp/tests/turns.spec.ts | 63 ++-- packages/ui/user-approval/README.md | 2 +- packages/ui/user-approval/src/index.ts | 63 +--- .../ui/user-approval/tests/approval.spec.ts | 6 +- scripts/gen-doc-graphs.ts | 15 + 31 files changed, 1166 insertions(+), 475 deletions(-) diff --git a/docs/cookbook/extension-cookbook.md b/docs/cookbook/extension-cookbook.md index f30d38e971..a16cda8799 100644 --- a/docs/cookbook/extension-cookbook.md +++ b/docs/cookbook/extension-cookbook.md @@ -56,7 +56,7 @@ export function apply(ctx: Context) { ## A client-driver plugin (external protocol bridge) -A *client driver* is a UI plugin whose "user" is another program speaking a wire protocol rather than a human at a terminal. It owns the process's stdio (so it must run with **no stdout logger** — every non-protocol byte corrupts the stream), creates/resumes agents on demand through the `dsh-agent` factory seam, translates harness events (`session/event`, `agent/*`) into outbound protocol messages, and translates inbound requests back into `agent.send()` / `agent.cancel()`. Two harness-specific contracts make it correct: resolve each request exactly once off a settle signal (settle from the durable `turn/end` session event — the boundary is a session event, not an `agent/*` mirror — with `agent/status` as the fallback if a peer listener starved yours), and tear each agent down through its `AgentHandle.dispose()` (which stops the loop, `await`s its exit, and unregisters), not just `cancel()` — disposal must *reach* quiescence, not merely request it. +A *client driver* is a UI plugin whose "user" is another program speaking a wire protocol rather than a human at a terminal. It owns the process's stdio (so it must run with **no stdout logger** — every non-protocol byte corrupts the stream), creates/resumes agents on demand through the `dsh-agent` factory seam, translates harness events (`session/event`, `agent/*`) into outbound protocol messages, and translates inbound requests back into `agent.send()` / `agent.cancel()`. Two harness-specific contracts make it correct: resolve each request exactly once from the durable `turn/end` session event, using `agent/status` only as defensive reconciliation against the canonical log, and tear each agent down through its `AgentHandle.dispose()` (which stops the loop, `await`s its exit, and unregisters), not just `cancel()` — disposal must *reach* quiescence, not merely request it. `packages/ui/acp` is the worked example: it bridges the agent to the Agent Client Protocol (JSON-RPC over stdio) so Zed and other ACP editors can drive it. See its README for the full method surface and the permission-prompt answerer it registers on the approval seam. diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index b69ed834b3..21e69f7a25 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -265,7 +265,7 @@ Source: [`packages/core/session/src/index.ts:64`](../../packages/core/session/sr ### `session/event` — emit -An event was appended to a session log (sync, fire-and-forget). This is the per-append feed a UI or invariant plugin tails. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the session's owner scope, captured when the session was ENTERED (an agent's session is entered through `agent.ctx`, so its events dispatch in that agent's scope; a bare `sessions.create()` from a plain plugin dispatches subject-less). A listener registered through `agent.ctx` hears only that agent's sessions; a plain plugin listener hears every session. +An event was appended to a session log (sync, fire-and-forget). This is the per-append feed a UI or invariant plugin tails. The log push is the commit point; synchronous throws and returned-promise rejections from observers are logged and contained per listener, so they cannot make a committed append appear to fail or starve later listeners. The exact callback list and Cordis internal-dispatch checks resolve before the push; callbacks themselves run only after it. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the session's owner scope, captured when the session was ENTERED (an agent's session is entered through `agent.ctx`, so its events dispatch in that agent's scope; a bare `sessions.create()` from a plain plugin dispatches subject-less). A listener registered through `agent.ctx` hears only that agent's sessions; a plain plugin listener hears every session. ```ts cordis-catalog 'session/event'(this: Scoped, session: Session, event: SessionEvent): void @@ -273,7 +273,7 @@ An event was appended to a session log (sync, fire-and-forget). This is the per- Types: [SessionEvent](../core-data-structures/core.md) -Source: [`packages/core/session/src/index.ts:78`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:83`](../../packages/core/session/src/index.ts) ### `session/flush` — parallel @@ -283,7 +283,7 @@ Awaited durability checkpoint. The agent loop awaits `ctx.sessions.flush(session 'session/flush'(this: Scoped, session: Session): Promise | void ``` -Source: [`packages/core/session/src/index.ts:96`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:101`](../../packages/core/session/src/index.ts) ## `skill/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 877c10e080..67a6b7a725 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -224,7 +224,7 @@ fork(source: SessionForkSource, boundary?: number, childSessionId?: SessionId): Types: [SessionRegistrationReservation](../core-data-structures/session.md) -Source: [`packages/core/session/src/index.ts:667`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:761`](../../packages/core/session/src/index.ts) ## `ctx.skills` — `SkillService` diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 17e9e74f50..4f2aec7b44 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -27,8 +27,8 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `llm/stream` | `waterfall` | [`packages/llm/llm/src/index.ts:39`](../packages/llm/llm/src/index.ts) | [`llm`](../packages/llm/llm) (`waterfall`) | [`invariants`](../packages/support/invariants), [`llm-replay`](../packages/support/llm-replay) | | `session/created` | `emit` | [`packages/core/session/src/index.ts:52`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence) | | `session/disposed` | `emit` | [`packages/core/session/src/index.ts:64`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | - | -| `session/event` | `emit` | [`packages/core/session/src/index.ts:78`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`emit`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence), [`stdio-agent`](../packages/ui/stdio-agent) | -| `session/flush` | `parallel` | [`packages/core/session/src/index.ts:96`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`parallel`) | [`session-persistence`](../packages/session-persistence/session-persistence) | +| `session/event` | `emit` | [`packages/core/session/src/index.ts:83`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | [`acp`](../packages/ui/acp), [`invariants`](../packages/support/invariants), [`session-persistence`](../packages/session-persistence/session-persistence), [`stdio-agent`](../packages/ui/stdio-agent) | +| `session/flush` | `parallel` | [`packages/core/session/src/index.ts:101`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | [`session-persistence`](../packages/session-persistence/session-persistence) | | `skill/provider-added` | `emit` | [`packages/skill/skill/src/index.ts:132`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | | `skill/provider-removed` | `emit` | [`packages/skill/skill/src/index.ts:138`](../packages/skill/skill/src/index.ts) | [`skill`](../packages/skill/skill) (`emit`) | - | | `subagent/end` | `emit` | [`packages/subagent/subagent/src/index.ts:134`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | diff --git a/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md b/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md index b727e357ee..80ca18b56f 100644 --- a/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md +++ b/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md @@ -18,7 +18,7 @@ A new `cancel()` verb on the `Agent` interface — the single public stop primit `ctx.agents.create`/`resume` (and the `AgentFactory` interface) return `AgentHandle = { agent: Agent; dispose(): Promise }`. The disposer is a **consumer capability** — a registry observer holding only the bare `Agent` cannot tear it down. The caller fiber and registered factory provider are structural co-owners: caller unload enforces structured ownership, while provider unload must stop old instances whose scoped dependency surface resolves through that provider. All three paths reach the same memoized teardown: stop the loop, `await` its exit (true quiescence, not just the `disposed` status flip), unregister it, remove its session from the store, unwind its scope, and only then release both public IDs. Config-created agents are already owned by the `AgentLoop` fiber (the handle is discarded). ACP holds each session's disposer in its `SessionRecord` and runs it on disconnect/teardown, so a bare client disconnect leaves no registered agent and no session-store entry — even when `session/load` races teardown (the just-resumed handle is disposed before the closed-guard throw). -**Teardown ORDER is load-bearing for durability**, and the implementation folds the session lifecycle into the agent's SINGLE composite cordis effect (`SessionStore.prepare`/`enter`/`announce`, replacing a sibling-effect split). A fiber unload disposes sibling effects concurrently (`Promise.all`), which would race detaching the session store's private append observer against the loop's closing `session/flush` and drop the closing `turn/end`; inside one effect the disposers run as an ordered LIFO chain (loop stopped + `await agent.done` BEFORE the session detaches), so the loop's final flush is captured on BOTH the handle's `dispose()` and a fiber unload. The contained `agent/disposed` and `session/disposed` notifications cannot reject the chain or skip later teardown. +**Teardown ORDER is load-bearing for durability**, and the implementation folds the session lifecycle into the agent's SINGLE composite cordis effect (`SessionStore.prepare`/`enter`/`announce`, replacing a sibling-effect split). A fiber unload disposes sibling effects concurrently (`Promise.all`), which would race removing the session store's append publication hooks against the loop's closing `session/flush` and drop the closing `turn/end`; inside one effect the disposers run as an ordered LIFO chain (loop stopped + `await agent.done` BEFORE the session detaches), so the loop's final flush is captured on BOTH the handle's `dispose()` and a fiber unload. The contained `agent/disposed` and `session/disposed` notifications cannot reject the chain or skip later teardown. ### 3. Bash owner token in the seam @@ -40,7 +40,7 @@ The bash owner-token comparison relies on `session.header.id` being unique among ## Alternatives considered - **A public `BashTask.owner` field** instead of the `BashExecutor.ownerOf(id)` seam — rejected: one read path, no redundant API. -- **Sibling cordis effects for the agent's session lifecycle** — rejected: a fiber unload disposes sibling effects concurrently (`Promise.all`), racing the store-owned append observer's detach against the loop's closing `session/flush`; the single composite effect's ordered LIFO chain is what captures the closing `turn/end` on both disposal paths. +- **Sibling cordis effects for the agent's session lifecycle** — rejected: a fiber unload disposes sibling effects concurrently (`Promise.all`), racing removal of the store-owned append publication hooks against the loop's closing `session/flush`; the single composite effect's ordered LIFO chain is what captures the closing `turn/end` on both disposal paths. - **A separate step-only `abort()` beside `cancel()`** — shipped originally, then removed as unused; `cancel()` is the single public stop primitive ([the public-stop-surface RFC](../simplification/2026-06-20-public-agent-stop-surface.md)). ## Consequences diff --git a/docs/rfc/implemented/architecture/2026-06-30-event-domain-semantics.md b/docs/rfc/implemented/architecture/2026-06-30-event-domain-semantics.md index 9375a6e248..f0ab95ca80 100644 --- a/docs/rfc/implemented/architecture/2026-06-30-event-domain-semantics.md +++ b/docs/rfc/implemented/architecture/2026-06-30-event-domain-semantics.md @@ -28,9 +28,9 @@ This is the foundational change in a stack that adds a Hooks subsystem; it estab ## Consequences -- The loop no longer emits any boundary mirror; `closeStep` appends `step/end` only and `closeTurn` appends `turn/end` only. A throwing `step/end`/`turn/end` session-event listener is the surviving boundary-listener failure path (contained inside `closeStep`/`closeTurn` — `Session.append` pushes the event before notifying listeners, so the boundary is durable and the turn closes balanced regardless). +- The loop no longer emits any boundary mirror; `closeStep` appends `step/end` only and `closeTurn` appends `turn/end` only. `Session.append` owns post-commit observer containment, so a throwing boundary observer cannot change the turn outcome or starve later consumers; an acceptance or internal validation failure still escapes before the boundary enters the log. - Tests that observed boundaries via the removed emits now observe the durable `turn/start`/`turn/end`/`step/start`/`step/end` session events — the behavior they pin (boundary ordering, step counting) is unchanged; only the feed they read moved to the canonical one. The tests that exercised a *throwing turn-boundary emit listener* were deleted, because that code path no longer exists (there is no emit to throw from). Per [AGENTS.md "tests document behavior, not golden truth"](../../../../AGENTS.md), the behavior and its test moved (or died) together. -- The loop marks the step open (`stepOpen = true`) BEFORE appending `step/start`, because `Session.append` pushes the event to the log before notifying `session/event` listeners (validation throws happen earlier, before the push — see [the session append contract](../../../core-data-structures/session.md)). So a throwing `step/start` session-event listener runs with the step already open and the event already in the log: the loop's outer catch then calls `closeStep()`, which appends the balancing `step/end`, and the turn closes balanced with an error (`turn/start → step/start → step/end → turn/end` — verified by the invariants oracle in the regression test). Closing the open step is owed precisely because the marker is set first. +- The loop marks the step open (`stepOpen = true`) only after `append('step/start')` returns. Internal dispatch validation runs before the log push and may reject without opening a step; post-commit `session/event` observer failures are contained inside `Session.append`. The marker therefore represents exactly the committed boundary that owes a later `step/end`. - The full realization of this is [the simplification RFC "Stop mirroring durable boundaries as agent events"](../simplification/2026-06-20-remove-agent-boundary-mirror-events.md): all four boundary mirrors are removed and every consumer reads boundaries off `session/event`. `agent/steering` (not a boundary mirror) stayed outside that RFC's scope and was removed by its own follow-up, [Remove the `agent/steering` mirror emit](../simplification/2026-07-04-remove-agent-steering-mirror.md) — it mirrored the durable `steering/message`. - The cordis events catalog (`docs/cordis-catalog/events.md`) is regenerated to drop the mirror events. diff --git a/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md b/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md index 73967c14b6..0b82e52581 100644 --- a/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md +++ b/docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md @@ -24,7 +24,7 @@ Prefix-cache stability is corollary #1, not the headline: an append-only log pro **The loop, transmission-stateless.** Per step: render assembly (every step — value comparison needs no change-signal discipline, and a section that varies per step surfaces as a *logged* header event per step instead of a silent bust) → on the instance's FIRST step only, the `agent/session-prefix` waterfall — request-ONLY messages fronting the entire derived history (a frozen empty seed, contributions returned as an extension of `next()`; the home for session-stable openers that must NOT become history — a skills catalog, an AGENTS.md digest), deep-frozen and cached on the instance so reuse is structural and the prefix cannot drift mid-session — → `agent/pre-step`, carrying the composed prefix (compaction's surface mutations land before derivation, and its pressure gate counts the prefix this instance will actually send — never a previous instance's logged one, which could under-gate a resumed/forked instance whose contributor grew) → **messages snapshot, then `step/start` appended as the next operation in the same synchronous frame** → seed the call config (first request of the instance: from `AgentOptions`, so explicit options always beat the logged baseline — fork model-overrides and resume reconfiguration stay correct; afterwards: from the folded header) → the `agent/request` waterfall, re-typed `(agent, turn, step, config: LlmCallConfig, next) → LlmCallConfig` — a frozen seed and a returned replacement are ALL a listener shapes; durable content flows through the log channels (`inject()`, steering, prompt-submit `additionalContext`, sections via `system-prompt/assemble`) — → the header event the request owes the log, carrying the prefix as `messagePrefix` (no session event carries it, so the header is its only durable record; resume = a new instance = a recompose, anchored by its `'resume'` snapshot) → build `GenerateOptions` from `messagePrefix + snapshot` + header, deep-freeze (`deepFreeze` exempts the `AbortSignal`, the one live control channel — freezing one breaks `AbortController.abort()`), dispatch. The loop's per-instance bookkeeping is one boolean plus the cached prefix: whether this instance has logged its anchoring snapshot, and what it composed. -**The reconstruction boundary is `step/start`, unconditionally.** A step's messages are the derivation over `events[0..stepStartSeq)`. Because the snapshot precedes the `step/start` append in the same synchronous frame, nothing can enter this request past the boundary: an `agent.inject()` from an `agent/request` listener (or any concurrent task, or a `session/event` listener firing on `step/start` itself) lands in the log after the boundary and joins the NEXT request. For waterfall-window appends this matches the prior loop (it also derived before its waterfall); for a synchronous `step/start` listener it is a deliberate change — such a listener could previously reach the current request — and `agent/pre-step` is the sanctioned seam for content that must affect the CURRENT request. A step's header for reconstruction is the fold after its own `request/header*` event (which sits between its `step/start` and first response event) or the fold carried forward. +**The reconstruction boundary is `step/start`, unconditionally.** A step's messages are the derivation over `events[0..stepStartSeq)`. Because the snapshot precedes the `step/start` append in the same synchronous frame, an `agent.inject()` from an `agent/request` listener or any concurrent task lands after the boundary and joins the NEXT request. `session/event` is observe-only during publication: a reentrant append is rejected until the current callback list drains, preventing nested event delivery from overtaking the event being observed. `agent/pre-step` is the sanctioned seam for content that must affect the CURRENT request. A step's header for reconstruction is the fold after its own `request/header*` event (which sits between its `step/start` and first response event) or the fold carried forward. **Enforcement.** Dev-mode ([dsh-invariants](../../../../packages/support/invariants/src/index.ts)), on `llm/stream`: a frozen request with a live `sessionId` — the loop-built marker; hand-built one-shots are unfrozen and skipped — must carry messages deep-equal to the folded header's `messagePrefix` followed by the boundary derivation — the derivation rebuilt through a FRESH `Session` over `events[0..stepStartSeq)` so the live cache cannot vouch for itself — and header fields equal to `foldRequestHeader` over the log. There is no divergence allowance and nothing to allow: no seam can put unlogged content into a request — the `agent/session-prefix` seam's product enters only because the header event records it first. `prepend: true` only defends against the replay adapter's short-circuit (an append-registered listener); two prepended listeners have no defined mutual order in cordis, so correctness rests on the seq-bounded fold, never on listener timing. Measurement stays lean: the with-key e2e ([request-cache.e2e.ts](../../../../packages/core/agent-loop/tests/request-cache.e2e.ts)) proves `usage.cacheReadTokens > 0` on every request after the first against the live API, and per-step usage in the log is the production observable — a header event or compaction shows up as a cache-read collapse on the next step. diff --git a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md index 318c07ad31..35d1b50c16 100644 --- a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md +++ b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md @@ -499,7 +499,19 @@ Factory and backend registration use different reentrancy orderings around the s ### Durable session ownership carries the scope key -The [session-immutability RFC](2026-06-11-dev-invariants-over-deep-readonly.md#session-owns-immutable-history) owns header, event, and snapshot semantics. Agent-scope correctness adds one requirement: the store keeps append observers, accepted registry IDs, and captured scope carriers in private owner state rather than caller-writable fields. Outside JavaScript therefore cannot rename a stored session or redirect later `session/event` delivery by mutating visible state. +The [session-immutability RFC](2026-06-11-dev-invariants-over-deep-readonly.md#session-owns-immutable-history) owns header, event, and snapshot semantics. Agent-scope correctness adds one requirement: the store keeps append publication, accepted registry IDs, and captured scope carriers in private owner state rather than caller-writable fields. Outside JavaScript therefore cannot rename a stored session or redirect later `session/event` delivery by mutating visible state. + +An entered session treats append as one synchronous acceptance-and-publication boundary: + +1. Capture the current store attachment and its private attachment epoch, keep the attachment live, then materialize and deep-freeze the caller's event data. +2. Reject if caller getters changed either value; the epoch catches even a transient attach-then-detach that restores the original hook lookup. The event must not become live without the store hooks that accepted it. +3. Resolve the exact scoped `session/event` callback list before commit. Cordis runs `internal/dispatch` during this step, so development invariants can still reject a bad candidate while the log is unchanged. Resolution uses a throwaway mutable argument array; replacing its accepted session or event rejects before commit, and product callbacks later receive a fresh fixed tuple. +4. Push the event into the log. This is the commit point. +5. Invoke the captured callbacks with per-listener containment and best-effort non-throwing failure reporting, then release the attachment barrier and honor any detach requested during acceptance or publication. + +The boundary rejects a reentrant `append()` until the outer callback list drains. Without that guard, an early observer could append event N+1 before a later persistence observer had received event N, reversing delivery relative to the log. Detach is deferred for the same interval, so no event can commit after `session/disposed` or lose its publication hooks. Once the push occurs, synchronous observer throws and returned-promise rejections are logged and contained rather than escaping as a false append failure or starving later observers. + +`SessionStore.flush()` uses the same pre-dispatch fixed-tuple check but remains an awaited durability barrier rather than an observe-only publication. It starts every captured listener synchronously, converts a synchronous throw into that listener's rejected result so later listeners still start, waits for every result to settle, and only then rejects with the first failed listener in registration order. One broken backend therefore cannot make the caller return while another backend is still flushing. Approval requests follow the same async boundary at smaller scale: one capture preserves exact agent/signal identities, copies scalar fields, captures the session once, and drives `approval/asked`, scoped policy, cancellation, and `approval/decided` from that record. @@ -915,7 +927,7 @@ The marker is compile-time only; JavaScript, casts, and direct Cordis dispatch c ### Development invariants inspect actual dispatch -The invariants plugin observes Cordis's internal dispatch before listener delivery. Every scoped event requires a marked carrier, and events whose arguments expose the subject require the carrier key to be the same object. +The invariants plugin uses Cordis's internal dispatch as the pre-delivery enforcement point. Every scoped event requires a marked carrier, and events whose arguments expose the subject require the carrier key to be the same object. For `session/event`, callback resolution also precedes the log push: the plugin validates and stages the exact candidate there, then advances its live trace only when the same committed event reaches its contained post-commit listener. A later internal check can therefore veto without advancing either log or trace. Both halves of this oracle are explicitly global, so mounting the plugin under a scoped context cannot stage a foreign event without also applying its committed transition. Session and subagent payloads do not expose their owner key directly, so their service centralizes key selection and the invariant proves carrier presence. Additional invariants reject an assembly whose `agent` and `scope` disagree and a turn opened before `agent/session-start`. diff --git a/docs/rfc/implemented/feature/2026-07-06-approval-seam.md b/docs/rfc/implemented/feature/2026-07-06-approval-seam.md index 1257554d30..0579bf2629 100644 --- a/docs/rfc/implemented/feature/2026-07-06-approval-seam.md +++ b/docs/rfc/implemented/feature/2026-07-06-approval-seam.md @@ -49,7 +49,7 @@ The `escalation-rejected` twin ends in `{"outcome": "rejected"}` instead: nothin #### The seam: mechanism and policy split -`ApprovalService.request(req)` always resolves to a closed `ApprovalOutcome` — `allowed-once` / `rejected` / `cancelled` / `unavailable` — and never rejects. The service synchronously snapshots and shallow-freezes the accepted request before its first asynchronous boundary: scalar fields are copied while the agent and `AbortSignal` remain exact identity capabilities, so later caller mutation cannot redirect scope, payload, cancellation, or either audit event. The service dispatches the `approval/request` waterfall, races the captured signal (abort settles `cancelled`; a late answer is discarded, never double-audited), contains a throwing answerer as `unavailable`, normalizes a rogue non-vocabulary return to `unavailable`, and lands the log-only audit pair `approval/asked`/`approval/decided` (paired by the branded `ApprovalRequestId`) on the captured agent's captured session log. A session observer runs after an event enters the append-only log; if one throws, the service recognizes the recorded event, contains the callback failure, and completes the pair. Grants are one-shot by definition: `allowed-once` authorizes the single asked-about action, never a class of future ones, and the service stores nothing between requests. The one precondition: `request()` throws (before appending anything) when the agent's session has no open turn — the audit pair must be turn-enclosed, the turn being the durable log's commit/replay boundary (a bare event between turns is dropped as crash tail on reload); every ask path runs mid-turn already, and idle asks are a deferred design. +After request validation and a successful `approval/asked` append, the answerer phase always resolves to a closed `ApprovalOutcome` — `allowed-once` / `rejected` / `cancelled` / `unavailable`. The service synchronously snapshots and shallow-freezes the accepted request before its first asynchronous boundary: scalar fields are copied while the agent and `AbortSignal` remain exact identity capabilities, so later caller mutation cannot redirect scope, payload, cancellation, or either audit event. The service dispatches the `approval/request` waterfall, races the captured signal (abort settles `cancelled`; a late answer is discarded, never double-audited), contains a throwing answerer as `unavailable`, normalizes a rogue non-vocabulary return to `unavailable`, and lands the log-only audit pair `approval/asked`/`approval/decided` (paired by the branded `ApprovalRequestId`) on the captured agent's captured session log. Request acceptance and either pre-commit audit append may still reject; returning a decision that could not be logged would violate the pair. Session owns post-commit observer containment, so a callback failure cannot turn an authoritative audit append into a rejected request or suppress the matching event. Grants are one-shot by definition: `allowed-once` authorizes the single asked-about action, never a class of future ones, and the service stores nothing between requests. `request()` also throws before appending anything when the agent's session has no open turn — the audit pair must be turn-enclosed, the turn being the durable log's commit/replay boundary (a bare event between turns is dropped as crash tail on reload); every ask path runs mid-turn already, and idle asks are a deferred design. Answerers are the policy, and they are `approval/request` waterfall listeners. The waterfall buys exactly what the seam needs: with zero listeners the dispatch falls through to the caller-supplied default — `unavailable`, so fail-closed needs no configuration and no code in any deployment; a listener that recognizes the request's agent answers by returning an outcome without calling `next()` (the decision slot is single-occupancy, first answer wins — the same documented semantics as the `fs/write-intent` gate); a listener that does not recognize the agent MUST delegate via `next()` so another answerer or the default gets the question; and listeners dispose with their owning fiber, so an unloaded UI plugin degrades the next ask to `unavailable` instead of leaving a dangling channel. Registration order across sibling plugins is not load-order deterministic (the loader starts siblings concurrently), so a deployment composes ONE terminal answerer and reserves `prepend` listeners for decide-or-delegate gates. diff --git a/docs/rfc/implemented/simplification/2026-06-20-remove-agent-boundary-mirror-events.md b/docs/rfc/implemented/simplification/2026-06-20-remove-agent-boundary-mirror-events.md index e4b72ab5d1..dbef22f3a3 100644 --- a/docs/rfc/implemented/simplification/2026-06-20-remove-agent-boundary-mirror-events.md +++ b/docs/rfc/implemented/simplification/2026-06-20-remove-agent-boundary-mirror-events.md @@ -13,7 +13,7 @@ Status: implemented ## Problem -The loop records the canonical transcript in `SessionEvent` and also emitted a parallel set of live `agent/*` boundary mirror events: `agent/turn-start`, `agent/turn-end`, `agent/step-start`, and `agent/step-end`. The mirrors made consumers choose between two sources of truth for the SAME durable fact. ACP already chose the session log for the editor-facing transcript because a throwing peer listener can prevent later `agent/*` listeners from observing a boundary, while the session event was already appended. The stdio UI was the only production consumer that still rendered turn boundaries from the mirror events; it already rendered tool calls and results from `session/event`. +The loop records the canonical transcript in `SessionEvent` and also emitted a parallel set of live `agent/*` boundary mirror events: `agent/turn-start`, `agent/turn-end`, `agent/step-start`, and `agent/step-end`. The mirrors made consumers choose between two sources of truth for the SAME durable fact. ACP already chose the session log for the editor-facing transcript because it is the one durable, replayable record; consuming a live mirror would require reconciling its timing with the boundary already stored in that log. The stdio UI was the only production consumer that still rendered turn boundaries from the mirror events; it already rendered tool calls and results from `session/event`. This duplication is not free. Every lifecycle change had to update the session event, the mirror event, docs, invariants, tests, and snapshot expectations. The duplicate boundary events also made failure ordering subtle: a turn can be durably closed before a live `agent/turn-end` listener runs, so a post-boundary listener failure has no valid in-log position left and must be reported out of band. diff --git a/packages/core/agent-loop/src/agent.ts b/packages/core/agent-loop/src/agent.ts index 16f10168b6..a449e6c907 100644 --- a/packages/core/agent-loop/src/agent.ts +++ b/packages/core/agent-loop/src/agent.ts @@ -275,39 +275,21 @@ export class ReactLoopAgent implements Agent { // No turn open: wrap the injection in a one-shot turn so every event stays // turn-enclosed (the durability/replay boundary is the turn). const turn = lastTurnNumber(this.session) + 1 - // Once turn/start enters the log, a turn/end is OWED no matter what — even - // if a throwing `session/event` listener escapes from the turn/start append - // (Session.append pushes the event BEFORE notifying listeners) or the - // context/message append throws (non-serializable content, throwing - // listener). The finally re-checks the log via isTurnOpen() and closes the - // turn if one was actually opened, so the log never carries a permanently - // open injection turn that would corrupt later turns/replay. (If the - // turn/start append throws BEFORE pushing — non-serializable trigger, which - // can't happen for our fixed trigger — no turn was opened and none is owed.) + // Once turn/start enters the log, a turn/end is owed even if the message + // append fails acceptance or pre-commit validation. The finally re-checks + // the log and closes only a turn that actually opened; post-commit observers + // are contained by Session and cannot create a false append failure. try { this.session.append('turn/start', { turn, trigger: { kind: 'injection', source } }) this.session.append('context/message', { content, source }, { surfaceOp: 'append' }) } finally { - // Close the turn if turn/start made it into the log. Contain a throwing - // turn/end listener: Session.append pushes before notifying, so a throw - // here still leaves turn/end in the log (the turn is balanced) — swallow - // it so it neither replaces the original exception nor skips the flush - // decision below. (It surfaces through the flush path is not needed; the - // turn-balance contract is what matters and it holds.) + // Close the turn if turn/start made it into the log. A pre-commit veto + // must escape rather than being mistaken for a committed turn/end. if (isTurnOpen(this.session)) { - try { - this.session.append('turn/end', { turn, reason: { kind: 'completed' } }) - } catch { - // turn/end is already in the log (pushed before the listener threw), - // so the turn is balanced; the throw is the listener's bug. - } + this.session.append('turn/end', { turn, reason: { kind: 'completed' } }) } - // Decide the durability checkpoint from the LOG, not a flag: a turn was - // recorded iff this turn's turn/start is logged (it may have been closed - // by a throwing-listener turn/end above, which still counts). A - // `turnRecorded` boolean set after append('turn/end') would be skipped by - // a throwing turn/end listener, losing the flush for a balanced in-memory - // turn (crash before the next turn/dispose would drop the idle injection). + // Decide the durability checkpoint from the log: an accepted one-shot + // turn must be flushed even when its message append was the failing step. const turnRecorded = this.session.events.some(e => e.type === 'turn/start' && e.data.turn === turn) // Checkpoint the one-shot turn for durability, exactly as the loop does at // every turn/end. The loop is NOT running (we are idle), so nothing else diff --git a/packages/core/agent-loop/src/loop.ts b/packages/core/agent-loop/src/loop.ts index 756c007c45..982fa02cab 100644 --- a/packages/core/agent-loop/src/loop.ts +++ b/packages/core/agent-loop/src/loop.ts @@ -291,15 +291,14 @@ export async function runLoop(ctx: Context, agent: ReactLoopAgent, handle: LoopH // the previous turn/end), where the persistence backend drops it as a // crash tail (the turn-enclosure RFC). Report via agent/error + the logger only; the // driver survives and moves on. - /* v8 ignore start -- defensive internal-corruption backstop: public - * send/steer input is accepted as lossless JSON before enqueue, and - * runTurn contains every failure after turn/start. */ + // Acceptance and internal dispatch validation can reject before + // turn/start commits. Report that supported pre-turn failure without + // inventing a turn/end for a turn that never opened. const err = toError(error) ctx.logger.warn(`agent "${agent.id}": turn ${turn} failed before it started: ${err.message}`) try { events.emit('agent/error', turn, 0, err) } catch { /* contained: a throwing agent/error listener must not kill the driver */ } - /* v8 ignore stop */ } // Reset the cancel marker UNCONDITIONALLY here, after the turn returns and @@ -346,34 +345,14 @@ async function runTurn( let errorReported = false let terminalStopped = false - // Close the open step exactly once (idempotent via stepOpen). Step boundaries - // are durable session events only — there is no agent/* step emit to mirror - // them (see the agent event-domain rule). A throwing step/end session-event - // listener must not abort finalization and strand the turn open (turn/end - // balance > notifying one bad listener); it is contained and surfaced as a - // turn error below. - const closeStep = (): boolean => { - if (!stepOpen) return false + // Close the open step exactly once (idempotent via stepOpen). Post-commit + // session/event observers are contained by Session; a pre-commit validator + // failure still escapes so the outer recovery path may retry the boundary or + // fail loudly without pretending an uncommitted step/end exists. + const closeStep = (): void => { + if (!stepOpen) return + session.append('step/end', { turn, step }) stepOpen = false - // Session.append pushes step/end BEFORE notifying session/event listeners, - // so a throwing listener leaves step/end in the log (balance holds) but - // would otherwise abort finalization. Contain it and surface it as a turn - // error below. - let failure: unknown - try { - session.append('step/end', { turn, step }) - } catch (error: unknown) { - failure = error - } - // A throwing step/end session-event listener surfaces as a turn error via - // failTurn (idempotent). This prevents a throwing listener from producing a - // silent "completed" turn when the step itself succeeded, AND keeps - // finalization going when closeStep runs from the outer catch. - if (failure !== undefined) { - failTurn(toError(failure)) - return true - } - return false } // Record a step/turn failure exactly once: set the error reason (carrying the @@ -385,12 +364,9 @@ async function runTurn( const failTurn = (err: CodedError): void => { if (errorReported) return errorReported = true - // The turn is always still open here: the only failure that can reach - // failTurn once turn/end is appended would be a throwing turn-boundary - // listener, and turn boundaries are durable session events with no agent/* - // mirror to throw. A throwing `turn/end` session-event listener is already - // contained inside closeTurn (append pushes before notifying, so the - // boundary is durable). So set the error reason for closeTurn to append. + // The turn is still open here. Post-commit observers cannot escape append, + // and a pre-commit turn/end veto leaves no closing boundary to overwrite. + // Set the reason that the next successful closeTurn will append. reason = { kind: 'error', step, ...errorData(err) } try { events.emit('agent/error', turn, step, err) @@ -400,30 +376,17 @@ async function runTurn( } } - // Close the turn. Called exactly once per turn — the normal loop exit and the - // outer catch are mutually exclusive paths, and this never throws (the append - // is contained below), so there is no re-entry to guard against (unlike - // closeStep, which the cancel branches and the outer catch can both reach). - // Turn boundaries are durable session events only — there is no agent/* turn - // emit to mirror them (see the agent event-domain rule). + // Close the turn. Post-commit observer failures are contained by Session; + // pre-commit validation failures escape to recovery instead of being mistaken + // for a committed boundary. Turn boundaries are durable session events only. const closeTurn = (): void => { - // Session.append pushes turn/end BEFORE notifying session/event listeners, - // so a throwing listener leaves turn/end in the log (the turn is balanced) - // but would otherwise escape — from the outer catch it would propagate to - // the runLoop backstop. Contain it: the boundary is durable either way, and - // finalization must not abort on a bad listener. - try { - session.append('turn/end', { turn, reason }) - } catch (error: unknown) { - ctx.logger.warn(`agent "${agent.id}": session/event listener threw on turn/end at turn ${turn}: ${toError(error).message}`) - } + session.append('turn/end', { turn, reason }) } try { // --- Turn boundary. Once turn/start is appended, a turn/end is owed no - // matter what throws below; the catch + closeTurn guarantee it (the catch - // decides "owed" from the log via isTurnOpen, so even a throwing turn/start - // listener — append pushes before notifying — still gets its turn/end). + // matter what throws below; the catch + closeTurn guarantee it. A pre-commit + // veto leaves no turn/start in the log and therefore owes no turn/end. session.append('turn/start', { turn, trigger }) // Each drained queued message runs the `agent/prompt-submit` waterfall before // it becomes a `user/message` — a hook can rewrite the prompt or block it. @@ -581,20 +544,19 @@ async function runTurn( // messages are snapshotted HERE, in the same synchronous frame as the // step/start append directly below — so the snapshot is exactly the // derivation over the log prefix strictly before step/start's seq. - // Anything appended later — by a step/start session/event listener, an - // agent/request-window inject(), any concurrent task — lands after the - // boundary and joins the NEXT request. An external reconstructor + // Anything appended later by the request-window inject seam or a + // concurrent task lands after the boundary and joins the NEXT request. + // session/event itself is observe-only: append reentrancy is rejected + // until the current callback list drains. An external reconstructor // recovers these exact messages by folding the surface over // events[0..stepStartSeq). const boundaryMessages = session.deriveMessages() - // Mark the step open BEFORE the append: Session.append pushes the event - // to the log before notifying session/event listeners, so a THROWING - // step/start listener leaves step/start in the log. Setting stepOpen first - // means the outer catch's closeStep() then appends the balancing step/end - // (turn stays enclosed) instead of stranding an open step under turn/end. - stepOpen = true session.append('step/start', { turn, step }) + // Only a committed step/start creates a balancing obligation. A + // pre-commit veto throws before this assignment; post-commit observers + // are contained inside Session.append(). + stepOpen = true // Cancel landing in the step-start window: a synchronous `session/event` // step/start listener can cancel after the step is already open. Check @@ -647,7 +609,7 @@ async function runTurn( // Steering that arrived during streaming/tool execution. const steered = drainSteering(agent, handle.inbox, turn) - if (closeStep()) break + closeStep() const defaultDecision: ContinuationDecision = { action: stepOutcome.hadToolCalls || steered ? 'continue' : 'stop' } let decision: ContinuationDecision @@ -721,23 +683,11 @@ async function runTurn( // Normal / inline-error loop exit: close the turn. closeTurn() } catch (error: unknown) { - // Decide whether this turn was ever opened from the LOG, not a flag. - // Session.append pushes the event BEFORE notifying session/event listeners, - // so a throwing listener on the `turn/start` append leaves turn/start in the - // log even though execution never reached the lines after that append. - // Gating on a "turn started" boolean would skip turn/end and leave a - // permanently OPEN turn that poisons the next turn/replay (the turn-enclosure RFC). We - // check the log for THIS turn's turn/start: present means a turn/end is owed - // and the normal-exit `closeTurn()` did NOT run (we are here because a throw - // preceded it — the two `closeTurn()` sites are on mutually exclusive paths), - // so this catch appends turn/end with the disposed/error reason chosen below. - // `closeStep()` IS idempotent (guarded by `stepOpen`) — it may have run - // already in a step branch, so running it again is a safe no-op. Absent - // turn/start means the append threw BEFORE its push (a non-serializable - // trigger outside the public lossless-JSON boundary); nothing was opened, so rethrow - // to the runLoop backstop. + // Decide whether this turn opened from the LOG, not a speculative flag. A + // pre-commit validator or acceptance failure leaves no turn/start and owes + // no turn/end, so it propagates to runLoop's backstop. Once turn/start is + // present, this path balances any committed step and records the failure. const turnStartLogged = session.events.some(e => e.type === 'turn/start' && e.data.turn === turn) - /* v8 ignore next -- defensive internal-corruption path; public inbox input is lossless JSON */ if (!turnStartLogged) throw error closeStep() // Choose the close reason. Disposal wins only if no error was already diff --git a/packages/core/agent-loop/tests/agent.spec.ts b/packages/core/agent-loop/tests/agent.spec.ts index be1a0fe5b5..d132d862a8 100644 --- a/packages/core/agent-loop/tests/agent.spec.ts +++ b/packages/core/agent-loop/tests/agent.spec.ts @@ -187,10 +187,8 @@ describe('ReactLoopAgent', () => { const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) let flushes = 0 ctx.on('session/flush', () => { flushes += 1 }) - // A session/event listener that throws on the synthetic turn/end. Append - // pushes before notifying, so turn/end is in the log (turn balanced) but the - // throw must NOT skip the durability checkpoint — the flush decision is made - // from the log, not a flag set after the (throwing) append. + // Session contains a throwing post-commit turn/end observer. The accepted + // boundary still triggers the idle injection's durability checkpoint. let threw = false ctx.on('session/event', (_s, event) => { if (!threw && event.type === 'turn/end') { threw = true; throw new Error('boom turn/end') } diff --git a/packages/core/agent-loop/tests/coverage-edges.spec.ts b/packages/core/agent-loop/tests/coverage-edges.spec.ts index ee58fcd66e..23e5670f85 100644 --- a/packages/core/agent-loop/tests/coverage-edges.spec.ts +++ b/packages/core/agent-loop/tests/coverage-edges.spec.ts @@ -2,6 +2,7 @@ import { describe, expect, it } from 'vitest' import { Context } from 'cordis' import LlmService, { CallId, LlmError, StreamChunk } from '@deepseek-ai/dsh-llm' import SessionStore, { TurnEndReason } from '@deepseek-ai/dsh-session' +import type { SessionEvent } from '@deepseek-ai/dsh-session' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' import ToolRegistry, { defineTool } from '@deepseek-ai/dsh-tools' import AgentRegistry, { AgentId } from '@deepseek-ai/dsh-agent' @@ -122,13 +123,15 @@ describe('tool JSON parse', () => { }) describe('toError normalization', () => { - it('normalizes non-Error throws from a turn/start session-event listener via toError', async () => { + it('normalizes non-Error throws from pre-commit dispatch validation via the runLoop backstop', async () => { const adapter = new MockAdapter([textResponse('ok')]) const ctx = await harness(adapter) const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) let threwOnce = false - ctx.on('session/event', (_session, event) => { + ctx.on('internal/dispatch', (_mode, name, args) => { + if (name !== 'session/event') return + const event = args[1] as SessionEvent if (event.type === 'turn/start' && !threwOnce) { threwOnce = true throw 'naked string error' // non-Error throw, normalized via toError @@ -141,11 +144,9 @@ describe('toError normalization', () => { send(agent, 'go') await waitForIdle(ctx, agent) expect(errors).toHaveLength(1) - expect(errors[0]!.message).toBe('naked string error') - // A non-Error throw is wrapped in a HarnessError with code UNKNOWN, so the - // turn-end error reason carries a routable code instead of degrading. - const turnEnd = agent.session.events.find(e => e.type === 'turn/end') - expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind === 'error' && turnEnd.data.reason.code).toBe('UNKNOWN') + expect(errors[0]).toMatchObject({ message: 'naked string error', code: 'UNKNOWN' }) + expect(adapter.requests).toEqual([]) + expect(agent.session.events.some(event => event.type === 'turn/start' || event.type === 'turn/end')).toBe(false) }) it('normalizes non-Error throws from agent/request waterfall via inline toError in runStep catch', async () => { diff --git a/packages/core/agent-loop/tests/loop.spec.ts b/packages/core/agent-loop/tests/loop.spec.ts index 5815217fc4..f1c3e9af9d 100644 --- a/packages/core/agent-loop/tests/loop.spec.ts +++ b/packages/core/agent-loop/tests/loop.spec.ts @@ -810,10 +810,10 @@ describe('agent loop', () => { ]) }) - it('stops the turn when a step/end session-event listener failure has recorded an error', async () => { + it('contains a step/end observer failure without changing continuation', async () => { const adapter = new MockAdapter([ toolCallResponse('c1', 'echo', { text: 'x' }), - textResponse('should not run'), + textResponse('continued after tool call'), ]) const ctx = await harness(adapter) ctx.tools.register(defineTool({ @@ -826,9 +826,8 @@ describe('agent loop', () => { })) const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) let threw = false - // A throwing step/end session-event listener is the surviving boundary-listener - // failure path (step boundaries have no agent/* mirror): closeStep contains it - // and surfaces it as a turn error rather than stranding the turn open. + // Post-commit session observers cannot control the loop. The tool call still + // drives the second model request, and the turn completes normally. ctx.on('session/event', (_session, event) => { if (event.type === 'step/end' && !threw) { threw = true; throw new Error('bad step/end listener') } }) @@ -836,9 +835,9 @@ describe('agent loop', () => { send(agent, 'go') await waitForIdle(ctx, agent) - expect(adapter.requests).toHaveLength(1) + expect(adapter.requests).toHaveLength(2) const turnEnd = agent.session.events.findLast(e => e.type === 'turn/end') - expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind).toBe('error') + expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason.kind).toBe('completed') }) it('chains queued messages into consecutive turns', async () => { diff --git a/packages/core/agent-loop/tests/review-fixes.spec.ts b/packages/core/agent-loop/tests/review-fixes.spec.ts index 4c68ac53bd..d4742da3e6 100644 --- a/packages/core/agent-loop/tests/review-fixes.spec.ts +++ b/packages/core/agent-loop/tests/review-fixes.spec.ts @@ -10,10 +10,7 @@ import { prepareReactLoopAgent } from '../src/agent.ts' import * as Invariants from '@deepseek-ai/dsh-invariants' import { MockAdapter, textResponse, toolCallResponse } from './mock-adapter.ts' -/** - * Regression tests for the findings of the first architecture review - * (Codex + sub-agent, post phase-1). Each describe block names the finding. - */ +/** Regression tests for agent-loop boundary, identity, and lifecycle contracts. */ async function harness(adapter: MockAdapter) { const ctx = new Context() @@ -682,7 +679,7 @@ describe('HIGH: a finish-error stream chunk ends the turn as error, not complete }) }) -describe('P1-6: a step/start session-event listener sees the event already in the log', () => { +describe('step boundary publication order', () => { it('the step/start event is in session.events when its session/event listener fires', async () => { const adapter = new MockAdapter([textResponse('done')]) const ctx = await harness(adapter) @@ -713,7 +710,7 @@ describe('P1-6: a step/start session-event listener sees the event already in th }) }) -describe('P1-5: a started turn (and any open step) is always closed on a boundary throw', () => { +describe('turn and step boundary recovery', () => { // Harness with the invariants plugin loaded as an oracle: it throws on // append if the log goes unbalanced (turn/end while a step is open, // turn/start while a turn is open, etc.), so a regression surfaces as an @@ -744,19 +741,13 @@ describe('P1-5: a started turn (and any open step) is always closed on a boundar } } - it('a throwing step/start session-event listener closes the open step then the turn (step/end before turn/end)', async () => { - const adapter = new MockAdapter([textResponse('never reached')]) + it('a throwing step/start observer cannot change a successful turn', async () => { + const adapter = new MockAdapter([textResponse('request completed')]) const ctx = await balancedHarness(adapter) const agent = ctx.agentLoop.create(AgentId('a-stepstart'), { model: 'mock' }) - // Step boundaries have no agent/* mirror; a throwing step/start session-event - // listener is the surviving step-boundary-listener failure. The loop marks - // the step open BEFORE appending step/start (Session.append pushes before - // notifying, so a post-push listener throw still leaves stepOpen=true), so - // the outer catch's closeStep() appends the balancing step/end — the turn - // stays enclosed. The invariants oracle (balancedHarness) rejects any - // imbalance, so a green run proves turn/start → step/start → step/end → - // turn/end nesting holds. + // Session owns post-commit containment. The loop sees a successful append, + // runs the request, and balances the ordinary step and turn boundaries. let threw = false ctx.on('session/event', (_s, event) => { if (event.type === 'step/start' && !threw) { threw = true; throw new Error('boom step-start') } @@ -769,8 +760,8 @@ describe('P1-5: a started turn (and any open step) is always closed on a boundar const e = [...agent.session.events] const c = boundaryCounts(agent) - expect(c).toMatchObject({ turnStart: 1, turnEnd: 1, stepStart: 1, stepEnd: 1, errors: 1 }) - expect(errors.map(x => x.message)).toEqual(['boom step-start']) + expect(c).toMatchObject({ turnStart: 1, turnEnd: 1, stepStart: 1, stepEnd: 1, errors: 0 }) + expect(errors).toEqual([]) // step/end precedes turn/end (the invariants oracle would reject // turn/end-while-step-open, but assert the order explicitly too). const stepEndIdx = e.findIndex(x => x.type === 'step/end') @@ -779,6 +770,101 @@ describe('P1-5: a started turn (and any open step) is always closed on a boundar expect(stepEndIdx).toBeLessThan(turnEndIdx) }) + it('a pre-commit step/start validation failure does not invent a step boundary', async () => { + const adapter = new MockAdapter([textResponse('never reached')]) + const ctx = await balancedHarness(adapter) + const agent = ctx.agentLoop.create(AgentId('a-stepstart-veto'), { model: 'mock' }) + let rejected = false + ctx.on('internal/dispatch', (_mode, name, args) => { + if (name !== 'session/event') return + const event = args[1] as SessionEvent + if (event.type === 'step/start' && !rejected) { + rejected = true + throw new Error('reject step-start before commit') + } + }) + const errors: Error[] = [] + ctx.on('agent/error', (_agent, _turn, _step, error) => { errors.push(error) }) + + send(agent, 'go') + await waitForIdle(ctx, agent) + + expect(adapter.requests).toEqual([]) + expect(boundaryCounts(agent)).toMatchObject({ + turnStart: 1, + turnEnd: 1, + stepStart: 0, + stepEnd: 0, + errors: 1, + }) + expect(errors.map(error => error.message)).toEqual(['reject step-start before commit']) + }) + + it('a one-shot turn/end validation failure preserves the earlier turn error on retry', async () => { + const errorStream: StreamChunk[] = [{ type: 'finish', reason: { kind: 'error', message: 'provider failed' } }] + const adapter = new MockAdapter([errorStream]) + const ctx = await balancedHarness(adapter) + const agent = ctx.agentLoop.create(AgentId('a-turnend-veto'), { model: 'mock' }) + let rejected = false + ctx.on('internal/dispatch', (_mode, name, args) => { + if (name !== 'session/event') return + const event = args[1] as SessionEvent + if (event.type === 'turn/end' && !rejected) { + rejected = true + throw new Error('reject first turn-end') + } + }) + const errors: Error[] = [] + ctx.on('agent/error', (_agent, _turn, _step, error) => { errors.push(error) }) + + send(agent, 'go') + await waitForIdle(ctx, agent) + + expect(errors.map(error => error.message)).toEqual(['provider failed']) + expect(boundaryCounts(agent)).toMatchObject({ + turnStart: 1, + turnEnd: 1, + stepStart: 1, + stepEnd: 1, + errors: 1, + }) + const turnEnd = agent.session.events.findLast(event => event.type === 'turn/end') + expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason).toMatchObject({ + kind: 'error', + message: 'provider failed', + }) + }) + + it('a one-shot step/end validation failure keeps the step open until retry succeeds', async () => { + const adapter = new MockAdapter([textResponse('completed before close validation')]) + const ctx = await balancedHarness(adapter) + const agent = ctx.agentLoop.create(AgentId('a-stepend-veto'), { model: 'mock' }) + let rejected = false + ctx.on('internal/dispatch', (_mode, name, args) => { + if (name !== 'session/event') return + const event = args[1] as SessionEvent + if (event.type === 'step/end' && !rejected) { + rejected = true + throw new Error('reject first step-end') + } + }) + const errors: Error[] = [] + ctx.on('agent/error', (_agent, _turn, _step, error) => { errors.push(error) }) + + send(agent, 'go') + await waitForIdle(ctx, agent) + + expect(adapter.requests).toHaveLength(1) + expect(errors.map(error => error.message)).toEqual(['reject first step-end']) + expect(boundaryCounts(agent)).toMatchObject({ + turnStart: 1, + turnEnd: 1, + stepStart: 1, + stepEnd: 1, + errors: 1, + }) + }) + it('a throwing agent/error listener during a step-error path still balances the turn, loop survives', async () => { // First turn: model stream ends with a finish-error → step error path → // failTurn emits agent/error, whose listener throws. The turn must still @@ -841,13 +927,9 @@ describe('P1-5: a started turn (and any open step) is always closed on a boundar }) it('preserves reason disposed when a pre-step listener disposes then throws (outer-catch disposed branch)', async () => { - // Reach the OUTER catch while disposed: an `agent/pre-step` listener requests - // disposal AND throws. The throw escapes the pre-step `await` (line ~419) to - // the loop's outer catch — BEFORE the post-pre-step disposal check at ~422 - // gets to run — so the catch sees `isDisposed() && !errorReported` and must - // PRESERVE reason=disposed rather than overwrite it with the listener's throw - // (disposal is not a failure). This is the surviving path to that sub-branch - // now that there is no turn-boundary emit to throw from. + // A pre-step listener requests disposal and then throws before the ordinary + // post-listener disposal check. The outer catch sees disposal already won + // and must preserve reason=disposed rather than rewrite it as a plugin error. const adapter = new MockAdapter([textResponse('never reached')]) const ctx = await balancedHarness(adapter) let agent!: ReactLoopAgent @@ -883,16 +965,8 @@ describe('P1-5: a started turn (and any open step) is always closed on a boundar expect(errorEmits).toHaveLength(0) }) - it('a throwing session/event listener on the turn/start append still balances the turn', async () => { - // Session.append pushes the event BEFORE notifying session/event listeners, - // so a listener throwing on turn/start leaves turn/start IN THE LOG. The - // loop must therefore still owe (and append) a turn/end — deciding "owed" - // from the log via isTurnOpen, not a "turn started" flag that the throw - // skipped. Otherwise the turn stays permanently open and poisons the next - // turn/replay (the turn-enclosure RFC). (Uses the plain harness — NOT the invariants - // oracle — because the throwing listener is itself a session/event - // subscriber.) - const adapter = new MockAdapter([textResponse('turn 2')]) + it('a throwing turn/start observer cannot starve the loop or later turns', async () => { + const adapter = new MockAdapter([textResponse('turn 1'), textResponse('turn 2')]) const ctx = await harness(adapter) const agent = ctx.agentLoop.create(AgentId('a-preturn'), { model: 'mock' }) @@ -906,12 +980,9 @@ describe('P1-5: a started turn (and any open step) is always closed on a boundar send(agent, 'go') await waitForIdle(ctx, agent) - // The error was surfaced exactly once via agent/error. - expect(errors.map(e => e.message)).toEqual(['boom turn/start append']) - // The turn is BALANCED: turn/start is in the log (it was pushed before the - // listener threw), so a turn/end was owed and appended — no open turn. The - // last turn-boundary event being turn/end is exactly the loop's isTurnOpen - // check (no open turn remains). + expect(errors).toEqual([]) + // Session contains the observer failure per listener, so the committed turn + // remains visible to later observers and executes normally. const types = [...agent.session.events].map(e => e.type) expect(types.filter(t => t === 'turn/start')).toHaveLength(1) expect(types.filter(t => t === 'turn/end')).toHaveLength(1) @@ -922,15 +993,10 @@ describe('P1-5: a started turn (and any open step) is always closed on a boundar // loop survives: a second turn runs normally. send(agent, 'second') await waitForIdle(ctx, agent) - expect(adapter.requests).toHaveLength(1) + expect(adapter.requests).toHaveLength(2) }) - it('a throwing step/end session-event listener during a successful step ends the turn as error, not completed', async () => { - // closeStep() must surface a throwing step/end listener via failTurn so the - // turn ends with reason error, not a silent "completed" with the throw - // swallowed. Regression test for the closeStep() catch that previously - // swallowed the throw in the normal (no-tool, no-steering) path. (Step - // boundaries have no agent/* mirror; the session-event listener is the path.) + it('a throwing step/end observer cannot rewrite the turn outcome', async () => { const adapter = new MockAdapter([textResponse('all good'), textResponse('turn 2 ok')]) const ctx = await balancedHarness(adapter) const agent = ctx.agentLoop.create(AgentId('a-stepend-throw'), { model: 'mock' }) @@ -946,11 +1012,10 @@ describe('P1-5: a started turn (and any open step) is always closed on a boundar await waitForIdle(ctx, agent) const c = boundaryCounts(agent) - // step opened and closed; exactly one error turn-end; turn balanced. - expect(c).toMatchObject({ turnStart: 1, turnEnd: 1, stepStart: 1, stepEnd: 1, errors: 1 }) - expect(errors.map(e => e.message)).toEqual(['boom step-end']) + expect(c).toMatchObject({ turnStart: 1, turnEnd: 1, stepStart: 1, stepEnd: 1, errors: 0 }) + expect(errors).toEqual([]) expect(c.lastTurnEnd?.type === 'turn/end' && c.lastTurnEnd.data.reason) - .toEqual({ kind: 'error', step: 1, message: 'boom step-end' }) + .toEqual({ kind: 'completed' }) // step/end precedes turn/end (ordering contract) const e = [...agent.session.events] @@ -968,14 +1033,11 @@ describe('P1-5: a started turn (and any open step) is always closed on a boundar expect(c2.stepStart).toBe(c2.stepEnd) }) - it('a throwing session/event listener on step/end during finalization still appends turn/end', async () => { + it('a throwing step/end observer cannot interrupt error finalization', async () => { // A finish-error stream opens a step then fails it, driving finalization - // through closeStep() with the step open. closeStep appends step/end; a - // session/event listener throwing on THAT must not abort the catch before - // closeTurn — step/end is already logged (balance holds) and the throw is - // contained + surfaced via failTurn, so turn/end is still appended. (The - // failed step itself also routes through failTurn; the step/end-listener - // throw is the second, contained, failure.) + // through closeStep() with the step open. Session contains the observer + // failure after committing step/end, so closeTurn still records the model + // failure and balances the turn. const errorStream: StreamChunk[] = [{ type: 'finish', reason: { kind: 'error', message: 'provider 500' } }] const adapter = new MockAdapter([errorStream, textResponse('turn 2 ok')]) const ctx = await harness(adapter) @@ -996,7 +1058,7 @@ describe('P1-5: a started turn (and any open step) is always closed on a boundar expect(e.some(x => x.type === 'step/end')).toBe(true) expect(e.some(x => x.type === 'turn/end')).toBe(true) expect(e.at(-1)?.type).toBe('turn/end') - expect(errors.length).toBeGreaterThanOrEqual(1) // surfaced via agent/error + expect(errors.map(error => error.message)).toEqual(['provider 500']) // loop survives. send(agent, 'again') @@ -1005,12 +1067,8 @@ describe('P1-5: a started turn (and any open step) is always closed on a boundar }) it('a throwing session/event listener on turn/end is contained (turn still balanced, loop survives)', async () => { - // closeTurn appends turn/end; Session.append pushes it BEFORE notifying - // session/event listeners, so a throwing listener leaves turn/end in the log - // (the turn is balanced) but must not escape — from the normal-path closeTurn - // it would otherwise propagate; the append is contained so the loop continues. - // Turn boundaries are durable session events only (no agent/* mirror), so this - // session/event append-notify throw is the sole turn-end-listener failure path. + // Session contains the observer failure after committing turn/end, so the + // boundary stays authoritative and the loop continues normally. const adapter = new MockAdapter([textResponse('turn 1'), textResponse('turn 2')]) const ctx = await harness(adapter) const agent = ctx.agentLoop.create(AgentId('a-turnendappend'), { model: 'mock' }) @@ -1036,7 +1094,7 @@ describe('P1-5: a started turn (and any open step) is always closed on a boundar }) }) -describe('P1-7: tool/result is logged under the originating call.id, not result.callId', () => { +describe('tool result call identity', () => { it('the loop records tool/result under the model call.id even when a post-execute listener replaces content', async () => { // Model emits a tool-call with id "c1", then a final text turn. const adapter = new MockAdapter([ @@ -1116,7 +1174,7 @@ describe('surface: assistant/message omits sourceEventSeqs when no chunks stream -describe('disposal/cancel honored during pre-step assembly (P1-1)', () => { +describe('disposal and cancellation during pre-step assembly', () => { it('disposal during system-prompt assembly drops the about-to-start step as disposed', { timeout: 30000 }, async () => { // Block `system-prompt/assemble` on a promise. Start disposal (which // calls stop() synchronously, setting status=disposed), then release the diff --git a/packages/core/session/README.md b/packages/core/session/README.md index 7389d6fade..085ebfda06 100644 --- a/packages/core/session/README.md +++ b/packages/core/session/README.md @@ -9,31 +9,31 @@ Creates and holds event-sourced `Session` instances. Persistence is intentionall ### Public API - `ctx.sessions.create(id?: SessionId, options?: { seed?: SessionEvent[]; meta?: { cwd?: string; parentSession?: SessionId; createdAt?: number; seedLength?: number } }): Session` — Create a session. `options.seed` replays/forks an existing event log: the constructor reads each array entry once, then recursively validates and copies every nested value in one pass so validation and storage cannot observe different getter results or erase an exotic prototype before checking it. `options.meta` attaches creation metadata (validated absolute `cwd`, `parentSession` lineage, seed boundary) as the immutable `SessionHeader`: the store rejects an exotic metadata shell, reads every accepted field once, and constructs a detached, deep-frozen header. The store fills `version`/`id` and defaults `createdAt` to now; a caller reconstructing a persisted session passes the original `createdAt` and persisted `seedLength` to preserve them. Disposed with the calling fiber. -- `ctx.sessions.flush(session: Session): Promise` Dispatch the awaited `session/flush` durability checkpoint with the carrier captured at enter — THE flush entry point (the loop's turn-end checkpoint and idle injection call it; never dispatch a raw `ctx.parallel`). Rejects a prepared, detached, or stale same-id object instead of inventing a subject-less carrier. +- `ctx.sessions.flush(session: Session): Promise` Dispatch the awaited `session/flush` durability checkpoint with the carrier captured at enter — THE flush entry point (the loop's turn-end checkpoint and idle injection call it; never dispatch a raw `ctx.parallel`). Every captured listener starts, the call waits for all of them to settle, and a failure rejects only after the other listeners finish. Rejects a prepared, detached, or stale same-id object instead of inventing a subject-less carrier. - `ctx.sessions.fork(source, boundary?, childSessionId?): Session` — Resolve a live session object or id, select a seed through the inclusive `boundary` event seq (default: current last event), require that boundary to be `turn/end`, and create a live child session with lineage metadata. - `ctx.sessions.get(id: SessionId): Session | undefined` - `ctx.sessions.list(): Session[]` #### Advanced: ordered-teardown lifecycle primitives -`create()` covers the common case (the session is owned by the calling fiber). When a session must be torn down **in order with another resource** — so a final flush is captured before the store-owned append observer detaches — `create()`'s self-contained effect is wrong, because a fiber unload disposes sibling effects *concurrently*. For that, split the lifecycle and fold it into the owner's single effect: +`create()` covers the common case (the session is owned by the calling fiber). When a session must be torn down **in order with another resource** — so a final flush is captured before the store attachment and publication hooks are removed — `create()`'s self-contained effect is wrong, because a fiber unload disposes sibling effects *concurrently*. For that, split the lifecycle and fold it into the owner's single effect: - `ctx.sessions.prepare(id?, options?): Session` — read `options.seed`/`options.meta` once, validate and detach the metadata/header, and construct the `Session` WITHOUT entering it into the store. Same options as `create`. - `ctx.sessions.reserve(id): SessionRegistrationReservation` — hold an unpublished id under the calling fiber and construct its one owned Session through `reservation.prepare(options?)`. `release` is the exact owner effect disposer, so the agent lifecycle can adopt it and keep the ID reserved until scope cleanup quiesces. Until that release, bare `prepare`/`create`/`enter` calls for the id reject; the factory later presents the exact capability to `enter`, making setup-time publication structurally impossible without leaking an abandoned reservation across HMR disposal. -- `ctx.sessions.enter(session, reservation?): () => void` — claim the ID across caller-controlled filter/carrier evaluation, then install the module-private `session/event` observer and add the exact session under its accepted key; a reentrant same-ID entry cannot be overwritten. Returns the idempotent, exact-object-guarded DETACH disposer, which clears notification, carrier, and accepted-key state without letting a stale capability delete a replacement. Does NOT emit `session/created` (the caller installs the disposer first, then calls `announce`, so a throwing listener rolls the attach back). It re-checks the id because public `prepare`/`enter` calls may be interleaved. A factory passes the opaque capability from `reserve(id)` so setup cannot enter the reserved session or publish a same-id replacement before the owning transaction. +- `ctx.sessions.enter(session, reservation?): () => void` — claim the ID across caller-controlled filter/carrier evaluation, then install the module-private append publication hooks and add the exact session under its accepted key; a reentrant same-ID entry cannot be overwritten. Returns the idempotent, exact-object-guarded DETACH disposer, which clears publication, carrier, and accepted-key state without letting a stale capability delete a replacement. Does NOT emit `session/created` (the caller installs the disposer first, then calls `announce`, so a throwing listener rolls the attach back). It re-checks the id because public `prepare`/`enter` calls may be interleaved. A factory passes the opaque capability from `reserve(id)` so setup cannot enter the reserved session or publish a same-id replacement before the owning transaction. - `ctx.sessions.announce(session): void` — begin the one allowed `session/created` announcement for an entered session; repeat and reentrant calls reject before dispatch. A detach requested synchronously by a creation listener is deferred until that dispatch unwinds, so another creation listener cannot observe `session/disposed` before its own `session/created` callback. Detach emits `session/disposed` exactly once, including rollback after a partially delivered creation notification; a never-announced entry emits neither edge. `dsh-agent-loop` is the canonical consumer: after unpublished agent setup it enters both session and agent before announcing either, then nests loop stop, agent removal, session detach, and scope unwind in one ordered lifecycle. The final flush therefore settles before this package detaches the session, whether teardown starts from an `AgentHandle` or owner-fiber unload. ### Live service events -The store pairs announced creation with disposal, publishes each append, and provides an awaited durability checkpoint. Disposal listener failures, including returned-promise rejections, are contained per observer so teardown cannot be interrupted. Exact `session/*` signatures, modes, and scope-carrier behavior live in the generated [Cordis event catalog](../../../docs/cordis-catalog/events.md); the append-only payload vocabulary is separately generated into the [persistence catalog](../../../docs/persistence-catalog.md). Persistence consumers write behind from the append notification and drain on the store-owned flush entry point rather than dispatching the event directly. +The store pairs announced creation with disposal, publishes each append, and provides an awaited durability checkpoint. Before the log push it resolves the exact scoped `session/event` callback list, including development-time internal dispatch checks; substitution of the accepted session/event tuple rejects while the log is unchanged. The push is then the commit point, and callback throws or returned-promise rejections are logged and contained per observer. A committed append therefore returns normally, later observers still run, and teardown cannot interrupt an in-flight acceptance/publication boundary. Exact `session/*` signatures, modes, and scope-carrier behavior live in the generated [Cordis event catalog](../../../docs/cordis-catalog/events.md); the append-only payload vocabulary is separately generated into the [persistence catalog](../../../docs/persistence-catalog.md). Persistence consumers write behind from the append notification and drain on the store-owned flush entry point rather than dispatching the event directly. ### Class: `Session` Plain class (not a Cordis Service). Create via `ctx.sessions.create()`. -- `session.append(type, data, opts?): SessionEvent` — synchronous, never blocks on I/O. **Throws** if `data` or surface metadata is not losslessly JSON-serializable (BigInt, function, symbol, undefined, `-0`, non-finite number, circular ref, or an exotic object like Map/Set/Date/class instance). One recursive validate-and-copy pass reads each nested value exactly once and produces the detached value that enters the log, so validation and durability cannot diverge through a stateful getter or a prototype-erasing clone. The accepted event and every nested value are deep-frozen before publication; the returned event and observer notification share that immutable owned record. A third parameter `opts: SurfaceIntent` carries surface metadata: `surfaceOp` and `sourceEventSeqs` are each read once, then the former controls how the event enters the surface linked list and the latter records provenance. Runtime validation accepts only `'append'` or the exact `{ op: 'replace', start, end }` record with non-negative safe-integer bounds, and provenance must be an array of non-negative safe integers; non-surface events reject either field. The marker is **required** for the five `SurfaceEventType` events (every message-producing event must declare how it joins the surface) and rejected by the compiler for non-surface types. The contract is enforced two ways: the typed overload handles a specific event literal, AND runtime checks cover widened unions and raw seed/load logs so invalid metadata can never silently enter or disappear from `deriveMessages()`. +- `session.append(type, data, opts?): SessionEvent` — synchronous, never blocks on I/O. **Throws** if `data` or surface metadata is not losslessly JSON-serializable (BigInt, function, symbol, undefined, `-0`, non-finite number, circular ref, or an exotic object like Map/Set/Date/class instance). One recursive validate-and-copy pass reads each nested value exactly once and produces the detached value that enters the log, so validation and durability cannot diverge through a stateful getter or a prototype-erasing clone. The accepted event and every nested value are deep-frozen before publication; the returned event and observer notification share that immutable owned record. An entered session pins its attachment from materialization through observer delivery, rejects if a caller getter changes that attachment, and rejects a reentrant append until the outer callback list drains; these rules prevent an event from bypassing persistence or being delivered out of log order. The log push is the commit point: a synchronous observer throw or returned-promise rejection is logged per observer and cannot turn the committed append into a caller-visible failure or starve later observers. A third parameter `opts: SurfaceIntent` carries surface metadata: `surfaceOp` and `sourceEventSeqs` are each read once, then the former controls how the event enters the surface linked list and the latter records provenance. Runtime validation accepts only `'append'` or the exact `{ op: 'replace', start, end }` record with non-negative safe-integer bounds, and provenance must be an array of non-negative safe integers; non-surface events reject either field. The marker is **required** for the five `SurfaceEventType` events (every message-producing event must declare how it joins the surface) and rejected by the compiler for non-surface types. The contract is enforced two ways: the typed overload handles a specific event literal, AND runtime checks cover widened unions and raw seed/load logs so invalid metadata can never silently enter or disappear from `deriveMessages()`. - `session.deriveMessages(): Message[]` — the LLM message history, CACHED: each surface node is projected exactly once, when first seen (O(new nodes) per call; a surface rewrite rebuilds via `surface.replaceGeneration`). Returns a fresh array snapshot per call over SHARED, deep-frozen `Message` objects — cloned once off the log at projection time, so a consumer can never mutate logged data (mutation throws). The surface is the single source of derived history — there is no raw-log fallback. - `session.deriveEventMessage(event): Message | null` — the per-event projection `deriveMessages()` folds: one event's derived message (an unfrozen clone), or `null` when it produces none (a non-surface event, or an empty-content `assistant/message` hosting only usage). External reconstructors and the dev invariant fold the same function over a log prefix's surface, so no two paths can disagree about what a request's messages were (the reconstructability RFC). - `session.surface: SurfaceManager` — the derived surface, lazily rebuilt from `surfaceOp` markers in the log. Processes only new events (delta) on each access — the log is append-only, so prior events never change. `surface.replaceGeneration` is the rewrite signal: bumped by every folded `replace` and by `invalidate()`, never reset, so an incremental consumer comparing generations cannot be fooled. diff --git a/packages/core/session/src/index.ts b/packages/core/session/src/index.ts index d8b3afb139..3cd1c61451 100644 --- a/packages/core/session/src/index.ts +++ b/packages/core/session/src/index.ts @@ -64,7 +64,12 @@ declare module 'cordis' { 'session/disposed'(this: Scoped, session: Session): void /** * An event was appended to a session log (sync, fire-and-forget). This is - * the per-append feed a UI or invariant plugin tails. + * the per-append feed a UI or invariant plugin tails. The log push is the + * commit point; synchronous throws and returned-promise rejections from + * observers are logged and contained per listener, so they cannot make a + * committed append appear to fail or starve later listeners. The exact + * callback list and Cordis internal-dispatch checks resolve before the push; + * callbacks themselves run only after it. * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is the * session's owner scope, captured when the session was ENTERED (an agent's * session is entered through `agent.ctx`, so its events dispatch in that @@ -279,7 +284,62 @@ function renderThrown(value: unknown): string { } } -const appendObservers = new WeakMap void>() +/** Best-effort reporting that cannot re-expose an already-contained failure. */ +function warnContained(ctx: Context, message: string): void { + try { + ctx.logger.warn(message) + } catch { + // contained: logger failure must not turn an observe-only callback failure + // back into a caller-visible error or an unhandled promise rejection. + } +} + +type SessionCallback = (...args: unknown[]) => unknown + +/** Resolve one listener snapshot, including Cordis's internal dispatch checks. */ +function collectSessionCallbacks(ctx: Context, args: unknown[]): SessionCallback[] { + return [...ctx.events.dispatch('emit', args)] as SessionCallback[] +} + +/** Reject pre-commit dispatch instrumentation that substituted accepted values. */ +function assertDispatchTuple(name: string, actual: unknown[], expected: unknown[]): void { + if (actual.length !== expected.length || actual.some((value, index) => value !== expected[index])) { + throw new Error(`${name} internal dispatch replaced the accepted callback tuple`) + } +} + +/** Invoke one resolved observe-only listener snapshot with per-listener containment. */ +function invokeContainedSessionObservers( + ctx: Context, + name: 'session/event' | 'session/disposed', + id: SessionId, + args: unknown[], + callbacks: SessionCallback[], +): void { + for (const callback of callbacks) { + try { + const returned: unknown = callback(...args) + void Promise.resolve(returned).catch((error: unknown) => { + warnContained(ctx, `session "${id}": ${name} listener rejected: ${renderThrown(error)}`) + }) + } catch (error: unknown) { + warnContained(ctx, `session "${id}": ${name} listener threw: ${renderThrown(error)}`) + } + } +} + +interface SessionAppendHooks { + /** Keep the store attachment live through acceptance and publication. */ + begin(): void + /** Resolve the exact observer list before commit; returns its contained publisher. */ + prepareObservation(event: SessionEvent): () => void + /** Release the attachment barrier and honor a deferred detach. */ + end(): void +} + +const appendHooks = new WeakMap() +/** Identity token replaced on every store attachment or detachment. */ +const attachmentEpochs = new WeakMap() /** * An event-sourced session: an append-only log of {@link SessionEvent}s. @@ -289,6 +349,8 @@ const appendObservers = new WeakMap void>() */ export class Session { private log: SessionEvent[] = [] + /** True throughout one event's materialization, validation, commit, and publication. */ + private appendInProgress = false /** * Derived surface — a cached linked list of message-producing events. @@ -393,8 +455,11 @@ export class Session { /** * Append one typed event to the log and synchronously notify observers via - * the store-owned, module-private append observer. The hot path never blocks - * on I/O — persistence plugins buffer asynchronously. + * the store-owned, module-private publication hooks. The hot path never blocks + * on I/O — persistence plugins buffer asynchronously. Once the event enters + * the log, the append is committed: observer failures are logged and + * contained per listener, so they do not change the return value or prevent + * later listeners from observing the same accepted event. * * @param type - The event type (key of {@link SessionEventMap}). * @param data - The event payload; must be JSON-serializable. @@ -416,7 +481,9 @@ export class Session { * copies each nested value once, so a stateful getter cannot supply one value * to validation and another to storage. The event log is the durable source * of truth, so a bad event fails at the append site rather than later during - * a backend flush. + * a backend flush. A synchronous internal dispatch validation failure or an + * append reentered while this acceptance/publication boundary is open also + * rejects before the log changes. */ append( type: T, @@ -426,60 +493,87 @@ export class Session { if (typeof type !== 'string') { throw new TypeError('session event type must be a string') } - const surfaceOpts: SurfaceIntent | undefined = opts[0] - const sourceEventSeqs = surfaceOpts?.sourceEventSeqs - const surfaceOp = surfaceOpts?.surfaceOp - // Surface-eligible events MUST carry a surfaceOp marker — the surface is the - // sole source of derived history, so a marker-less message event would be - // logged yet vanish from deriveMessages(). The typed `opts` overload makes - // the marker mandatory only when `T` is a SPECIFIC SurfaceEventType literal; - // when `T` widens to the SessionEventType union (a caller iterating raw - // events: `for (const e of log) append(e.type, e.data)`), the conditional - // rest collapses to optional and the compiler stops enforcing it. Re-check - // at runtime so that loophole can't silently drop history. - const surfaceMetadata = { - ...sourceEventSeqs !== undefined ? { sourceEventSeqs } : {}, - ...surfaceOp !== undefined ? { surfaceOp } : {}, + if (this.appendInProgress) { + throw new Error('session append cannot reenter while another append is being accepted or published') } - // The caller still owns the data and metadata objects and could mutate them - // after append. Materialize each accepted value exactly once while checking - // its JSON vocabulary, so the log cannot drift and a stateful getter cannot - // show one value to validation and another to a prototype-erasing clone. The - // returned event carries these SAME snapshots. - // - // Surface metadata accessors are read once into one plain record; the - // recursive snapshot then reads each nested value once as it copies it. - // Build the event shape with conditional surface fields via spreading. - // The result is cast through `unknown` because the conditional spreads - // produce an intersection type that the assignability checker can't - // narrow to a specific discriminated-union member when T is generic. - // This is a safe internal boundary: data and surface metadata are - // materialized below before the event enters the log. - const dataSnapshot = snapshotJsonValue(data) - if (dataSnapshot === undefined) { - throw new Error(`session event "${type}" carries non-JSON-serializable data`) + const hooks = appendHooks.get(this) + const attachmentEpoch = attachmentEpochs.get(this) + this.appendInProgress = true + try { + // Start before reading caller-owned fields: a getter may request detach + // or try to append reentrantly. The attachment and sequence boundary stay + // stable until this exact acceptance attempt has either failed or reached + // every post-commit observer. + hooks?.begin() + const surfaceOpts: SurfaceIntent | undefined = opts[0] + const sourceEventSeqs = surfaceOpts?.sourceEventSeqs + const surfaceOp = surfaceOpts?.surfaceOp + // Surface-eligible events MUST carry a surfaceOp marker — the surface is the + // sole source of derived history, so a marker-less message event would be + // logged yet vanish from deriveMessages(). The typed `opts` overload makes + // the marker mandatory only when `T` is a SPECIFIC SurfaceEventType literal; + // when `T` widens to the SessionEventType union (a caller iterating raw + // events: `for (const e of log) append(e.type, e.data)`), the conditional + // rest collapses to optional and the compiler stops enforcing it. Re-check + // at runtime so that loophole can't silently drop history. + const surfaceMetadata = { + ...sourceEventSeqs !== undefined ? { sourceEventSeqs } : {}, + ...surfaceOp !== undefined ? { surfaceOp } : {}, + } + // The caller still owns the data and metadata objects and could mutate them + // after append. Materialize each accepted value exactly once while checking + // its JSON vocabulary, so the log cannot drift and a stateful getter cannot + // show one value to validation and another to a prototype-erasing clone. The + // returned event carries these SAME snapshots. + // + // Surface metadata accessors are read once into one plain record; the + // recursive snapshot then reads each nested value once as it copies it. + // Build the event shape with conditional surface fields via spreading. + // The result is cast through `unknown` because the conditional spreads + // produce an intersection type that the assignability checker can't + // narrow to a specific discriminated-union member when T is generic. + // This is a safe internal boundary: data and surface metadata are + // materialized below before the event enters the log. + const dataSnapshot = snapshotJsonValue(data) + if (dataSnapshot === undefined) { + throw new Error(`session event "${type}" carries non-JSON-serializable data`) + } + const surfaceMetadataSnapshot = snapshotJsonValue(surfaceMetadata) + if (surfaceMetadataSnapshot === undefined) { + throw new Error(`session event "${type}" carries non-JSON-serializable surface metadata`) + } + assertSurfaceMetadataShape( + type, + (surfaceMetadataSnapshot as { surfaceOp?: unknown }).surfaceOp, + (surfaceMetadataSnapshot as { sourceEventSeqs?: unknown }).sourceEventSeqs, + ) + if (appendHooks.get(this) !== hooks || attachmentEpochs.get(this) !== attachmentEpoch) { + throw new Error('session attachment changed while append input was being accepted') + } + const event = { + type, + seq: this.log.length, + time: Date.now(), + data: dataSnapshot, + ...surfaceMetadataSnapshot, + } as unknown as SessionEvent + const acceptedEvent = deepFreeze(event) + // Resolve dispatch before the log push. Cordis runs internal/dispatch + // while producing this list; if instrumentation rejects the carrier, the + // append still fails before commit. The resolved callbacks themselves are + // observe-only and run with per-listener containment after the push. + const publish = hooks?.prepareObservation(acceptedEvent as unknown as SessionEvent) + this.log.push(acceptedEvent as unknown as SessionEvent) + this.eventsSnapshot = undefined + publish?.() + return acceptedEvent + } finally { + try { + hooks?.end() + } finally { + this.appendInProgress = false + } } - const surfaceMetadataSnapshot = snapshotJsonValue(surfaceMetadata) - if (surfaceMetadataSnapshot === undefined) { - throw new Error(`session event "${type}" carries non-JSON-serializable surface metadata`) - } - assertSurfaceMetadataShape( - type, - (surfaceMetadataSnapshot as { surfaceOp?: unknown }).surfaceOp, - (surfaceMetadataSnapshot as { sourceEventSeqs?: unknown }).sourceEventSeqs, - ) - const event = { - type, - seq: this.log.length, - time: Date.now(), - data: dataSnapshot, - ...surfaceMetadataSnapshot, - } as unknown as SessionEvent - const acceptedEvent = deepFreeze(event) - this.log.push(acceptedEvent as unknown as SessionEvent) - this.eventsSnapshot = undefined - appendObservers.get(this)?.(acceptedEvent as unknown as SessionEvent) - return acceptedEvent } /** Cached fold of the request-header events — see {@link requestHeader}. */ @@ -674,7 +768,9 @@ export class SessionStore extends Service { private announced = new WeakSet() /** Entries currently dispatching `session/created`; detach waits for dispatch to unwind. */ private announcing = new WeakSet() - /** A detach requested reentrantly from `session/created`. */ + /** Entries accepting or publishing an append; detach waits for the boundary to unwind. */ + private appending = new WeakSet() + /** A detach requested reentrantly from creation or append publication. */ private pendingDetach = new WeakSet() /** Unpublished identities held across factory load/setup transactions. */ private reservations = new Map() @@ -746,7 +842,7 @@ export class SessionStore extends Service { * fills `version`/`id`/`createdAt`). * * For an agent whose session must be torn down IN ORDER with its loop (so the - * loop's final flush is captured before the store-owned observer detaches), do NOT use this + * loop's final flush is captured before the store attachment ends), do NOT use this * — fold the session lifecycle into the agent's own effect via * {@link prepare} + {@link enter} + {@link announce} (see `dsh-agent-loop`'s * `startOwned`). @@ -763,7 +859,7 @@ export class SessionStore extends Service { // Single effect owned by the calling fiber. Yield the detach BEFORE // announcing so a throwing `session/created` listener rolls the attach back // (the generator effect disposes already-yielded disposers on a throw) - // instead of leaking the store entry + append observer. + // instead of leaking the store entry and its publication hooks. this.ctx.effect(function* (this: SessionStore) { yield this.enter(session) this.announce(session) @@ -777,7 +873,7 @@ export class SessionStore extends Service { * Pairs with {@link enter} + {@link announce}: a caller that owns a composite * `ctx.effect` (the agent factory) folds the session lifecycle into that ONE * effect so a fiber unload tears the session + agent down as a single ORDERED - * chain rather than as racing sibling effects — which would detach the append observer + * chain rather than as racing sibling effects — which would remove the publication hooks * before the loop's closing `session/flush`, dropping the closing events. * * @param id - the session id; omitted, the store mints `session-`. @@ -827,9 +923,9 @@ export class SessionStore extends Service { } /** - * Enter a {@link prepare}d session into the store: wire the module-private - * append observer to `session/event` and add it to the store. Returns the - * DETACH disposer (observer + store removal). Does NOT emit `session/created` — + * Enter a {@link prepare}d session into the store: install the module-private + * append publication hooks and add it to the store. Returns the DETACH + * disposer (hooks + store removal). Does NOT emit `session/created` — * the caller yields this disposer inside its effect and THEN calls * {@link announce}, so a throwing `session/created` listener rolls the attach * back instead of leaking it. @@ -845,7 +941,7 @@ export class SessionStore extends Service { * @param session - a {@link prepare}d session not yet in the store. * @param reservation - the exact unpublished-id capability when a factory * reserved this session across setup. - * @returns the detach disposer (observer + store removal). When called from + * @returns the detach disposer (publication hooks + store removal). When called from * a synchronous `session/created` listener, removal and disposal wait until * that creation dispatch unwinds. * @throws if a session with this id is already in the store. @@ -863,7 +959,7 @@ export class SessionStore extends Service { if (this.store.has(id) || this.enteringIds.has(id)) { throw new Error(`session "${id}" already exists`) } - if (appendObservers.has(session)) throw new Error(`session "${id}" is already attached to a store`) + if (appendHooks.has(session)) throw new Error(`session "${id}" is already attached to a store`) this.enteringIds.add(id) // The carrier is decided HERE, once, from the ENTERING context's scope tag // (`this.ctx` is the caller's context — the tracker mechanism): every @@ -889,20 +985,39 @@ export class SessionStore extends Service { } /* v8 ignore next 1 -- enteringIds prevents a same-store commit during carrier construction */ if (this.store.has(id)) throw new Error(`session "${id}" already exists`) - if (appendObservers.has(session)) throw new Error(`session "${id}" is already attached to a store`) + if (appendHooks.has(session)) throw new Error(`session "${id}" is already attached to a store`) this.carriers.set(session, carrier) const emitCtx = this.ctx - appendObservers.set(session, (event) => { emitCtx.emit(carrier, 'session/event', session, event) }) + appendHooks.set(session, { + begin: () => { this.appending.add(session) }, + prepareObservation(event) { + // Cordis removes carrier/name in place and exposes the remaining array + // to internal/dispatch. Resolve with a throwaway array so an internal + // checker cannot replace the tuple later observers receive. + const dispatchArgs: unknown[] = [carrier, 'session/event', session, event] + const callbackArgs: unknown[] = [session, event] + const callbacks = collectSessionCallbacks(emitCtx, dispatchArgs) + assertDispatchTuple('session/event', dispatchArgs, callbackArgs) + return () => { invokeContainedSessionObservers(emitCtx, 'session/event', id, callbackArgs, callbacks) } + }, + end: () => { + this.appending.delete(session) + if (this.pendingDetach.has(session) && !this.announcing.has(session)) { + this.detachEntered(session, id, carrier) + } + }, + }) + attachmentEpochs.set(session, {}) this.acceptedIds.set(session, id) this.store.set(id, session) let entered = true const detach = (): void => { if (!entered) return entered = false - // A creation listener may own the advanced detach capability. Keep the - // entry and its event observer live until the synchronous creation - // dispatch unwinds, then publish the paired disposal edge. - if (this.announcing.has(session)) { + // A lifecycle listener may own the advanced detach capability. Keep the + // entry and its publication hooks live until synchronous creation or append + // publication unwinds, then publish the paired disposal edge. + if (this.announcing.has(session) || this.appending.has(session)) { this.pendingDetach.add(session) return } @@ -920,7 +1035,8 @@ export class SessionStore extends Service { * remains the exact-identity backstop against future mutation paths */ if (this.store.get(id) !== session || this.acceptedIds.get(session) !== id) return const wasAnnounced = this.announced.delete(session) - appendObservers.delete(session) + appendHooks.delete(session) + attachmentEpochs.set(session, {}) this.acceptedIds.delete(session) this.carriers.delete(session) this.store.delete(id) @@ -943,38 +1059,40 @@ export class SessionStore extends Service { // throw. Rollback must still pair that partial creation with disposal, and // a listener cannot recursively create a second lifecycle edge. this.announced.add(session) - const args: unknown[] = [carrier, 'session/created', session] + const dispatchArgs: unknown[] = [carrier, 'session/created', session] + const callbackArgs: unknown[] = [session] this.announcing.add(session) try { - for (const callback of this.ctx.events.dispatch('emit', args)) { + const callbacks = collectSessionCallbacks(this.ctx, dispatchArgs) + assertDispatchTuple('session/created', dispatchArgs, callbackArgs) + for (const callback of callbacks) { // Synchronous throws intentionally propagate and veto publication; the // yielded detach then emits the paired disposal edge. An async function // is nevertheless assignable to a void listener, so observe its returned // promise: rejection is too late to roll back and must be logged instead // of becoming unhandled. - const returned: unknown = callback(...args) + const returned: unknown = callback(...callbackArgs) void Promise.resolve(returned).catch((error: unknown) => { - this.ctx.logger.warn(`session "${id}": session/created listener rejected: ${renderThrown(error)}`) + warnContained(this.ctx, `session "${id}": session/created listener rejected: ${renderThrown(error)}`) }) } } finally { this.announcing.delete(session) - if (this.pendingDetach.has(session)) this.detachEntered(session, id, carrier) + if (this.pendingDetach.has(session) && !this.appending.has(session)) { + this.detachEntered(session, id, carrier) + } } } /** Emit the paired teardown notification with per-listener containment. */ private emitDisposed(session: Session, carrier: Scoped, id: SessionId): void { - const args: unknown[] = [carrier, 'session/disposed', session] - for (const callback of this.ctx.events.dispatch('emit', args)) { - try { - const returned: unknown = callback(...args) - void Promise.resolve(returned).catch((error: unknown) => { - this.ctx.logger.warn(`session "${id}": session/disposed listener rejected: ${renderThrown(error)}`) - }) - } catch (error: unknown) { - this.ctx.logger.warn(`session "${id}": session/disposed listener threw: ${renderThrown(error)}`) - } + const dispatchArgs: unknown[] = [carrier, 'session/disposed', session] + const callbackArgs: unknown[] = [session] + try { + const callbacks = collectSessionCallbacks(this.ctx, dispatchArgs) + invokeContainedSessionObservers(this.ctx, 'session/disposed', id, callbackArgs, callbacks) + } catch (error: unknown) { + warnContained(this.ctx, `session "${id}": session/disposed dispatch threw: ${renderThrown(error)}`) } } @@ -986,10 +1104,27 @@ export class SessionStore extends Service { * raw `ctx.parallel('session/flush', …)` — one owner, one spelling, and the * scoped-dispatch invariant can pin it. * @param session - the session whose buffered events must reach durable storage. - * @returns resolves when every flush listener has settled; rejects if one rejects. + * @returns resolves when every flush listener has settled; after all settle, + * rejects with the first registered listener failure if any listener failed. */ async flush(session: Session): Promise { - await this.ctx.parallel(this.liveEntryFor(session).carrier, 'session/flush', session) + const { carrier } = this.liveEntryFor(session) + const dispatchArgs: unknown[] = [carrier, 'session/flush', session] + const callbackArgs: unknown[] = [session] + const callbacks = collectSessionCallbacks(this.ctx, dispatchArgs) + assertDispatchTuple('session/flush', dispatchArgs, callbackArgs) + const results = await Promise.allSettled(callbacks.map((callback) => { + try { + return callback(...callbackArgs) + } catch (error: unknown) { + // Preserve the listener's exact rejection value; flush is a caller-owned + // failure boundary, and Cordis listeners may throw arbitrary values. + // eslint-disable-next-line @typescript-eslint/prefer-promise-reject-errors + return Promise.reject(error) + } + })) + const failure = results.find((result): result is PromiseRejectedResult => result.status === 'rejected') + if (failure !== undefined) throw failure.reason } /** Return the exact live session's accepted id and carrier; detached/prepared objects reject. */ diff --git a/packages/core/session/tests/scoped.spec.ts b/packages/core/session/tests/scoped.spec.ts index 80dd8510d2..80cc08e629 100644 --- a/packages/core/session/tests/scoped.spec.ts +++ b/packages/core/session/tests/scoped.spec.ts @@ -108,6 +108,40 @@ describe('sessions.flush()', () => { await expect(ctx.sessions.flush(session)).rejects.toThrow('disk full') }) + it('does not let a synchronous flush failure starve later listeners', async () => { + const ctx = await mount() + const flushed: Session[] = [] + ctx.on('session/flush', () => { throw new Error('disk full') }) + ctx.on('session/flush', (session) => { flushed.push(session) }) + const session = ctx.sessions.create() + + await expect(ctx.sessions.flush(session)).rejects.toThrow('disk full') + expect(flushed).toEqual([session]) + }) + + it('waits for slower flush listeners before reporting another listener failure', async () => { + const ctx = await mount() + const gate = Promise.withResolvers() + let slowStarted = false + let settled = false + ctx.on('session/flush', () => Promise.reject(new Error('disk full'))) + ctx.on('session/flush', () => { + slowStarted = true + return gate.promise + }) + const session = ctx.sessions.create() + + const flushing = ctx.sessions.flush(session) + void flushing.finally(() => { settled = true }).catch(() => undefined) + await Promise.resolve() + expect(slowStarted).toBe(true) + expect(settled).toBe(false) + + gate.resolve(undefined) + await expect(flushing).rejects.toThrow('disk full') + expect(settled).toBe(true) + }) + it('rejects a never-entered session instead of inventing a carrier', async () => { const ctx = await mount() const scope = await mintScope(ctx, 'owner') @@ -120,6 +154,21 @@ describe('sessions.flush()', () => { expect(flushed).toEqual([]) }) + it('rejects internal dispatch substitution before flush callbacks run', async () => { + const ctx = await mount() + const session = ctx.sessions.create() + const replacement = ctx.sessions.create() + const flushed: Session[] = [] + ctx.on('internal/dispatch', (_mode, name, args) => { + if (name === 'session/flush') args[0] = replacement + }) + ctx.on('session/flush', (candidate) => { flushed.push(candidate) }) + + await expect(ctx.sessions.flush(session)) + .rejects.toThrow('session/flush internal dispatch replaced the accepted callback tuple') + expect(flushed).toEqual([]) + }) + it('clears a detached carrier and rejects stale flushes', async () => { const ctx = await mount() const scope = await mintScope(ctx, 'owner') diff --git a/packages/core/session/tests/session.spec.ts b/packages/core/session/tests/session.spec.ts index 6edeac0084..761f89ed2b 100644 --- a/packages/core/session/tests/session.spec.ts +++ b/packages/core/session/tests/session.spec.ts @@ -702,7 +702,7 @@ describe('SessionStore', () => { const session = ctx.sessions.create() expect(created).toEqual([session]) - // The store-owned append observer is module-private. A JavaScript caller + // The store-owned append publication hooks are module-private. A JavaScript caller // may create an unrelated property with the old implementation's name, // but cannot suppress the durable event feed. expect(Reflect.set(session, 'onAppend', undefined)).toBe(true) @@ -1120,7 +1120,7 @@ describe('SessionStore', () => { expect(disposed.map(session => session.id)).toEqual(['fixed']) // A subsequent create of the SAME id succeeds (the already-exists check is - // not wedged) and its store-owned observer is correctly wired (events observable). + // not wedged) and its store-owned publication hooks are correctly wired. const events: SessionEvent[] = [] ctx.on('session/event', (_session, event) => void events.push(event)) const session = ctx.sessions.create(SessionId('fixed')) @@ -1129,6 +1129,277 @@ describe('SessionStore', () => { expect(events).toHaveLength(1) }) + it('contains session/event observer failures after the append commit point', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + const session = ctx.sessions.create(SessionId('contained-event')) + const heard: SessionEvent[] = [] + let committedBeforeNotify = false + ctx.on('session/event', (observedSession, event) => { + committedBeforeNotify = observedSession.events.at(-1) === event + throw new Error('sync event observer') + }) + ctx.on('session/event', () => Promise.reject(new Error('async event observer')) as never) + ctx.on('session/event', (_observedSession, event) => { heard.push(event) }) + + let appended!: SessionEvent + expect(() => { + appended = session.append('turn/start', { + turn: 1, + trigger: { kind: 'message', source: { kind: 'user' } }, + }) + }).not.toThrow() + expect(committedBeforeNotify).toBe(true) + expect(session.events).toEqual([appended]) + expect(heard).toEqual([appended]) + await Promise.resolve() + await Promise.resolve() + + expect(warnings).toEqual([ + 'session "contained-event": session/event listener threw: Error: sync event observer', + 'session "contained-event": session/event listener rejected: Error: async event observer', + ]) + }) + + it('runs internal dispatch validation on one frozen candidate before commit and resets after a veto', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const session = ctx.sessions.create(SessionId('dispatch-veto')) + const validations: Array<{ event: SessionEvent; logLength: number; frozen: boolean }> = [] + const observed: SessionEvent[] = [] + let reject = true + ctx.on('internal/dispatch', (_mode, name, args) => { + if (name !== 'session/event') return + const [observedSession, event] = args as [Session, SessionEvent] + validations.push({ + event, + logLength: observedSession.events.length, + frozen: Object.isFrozen(event) && Object.isFrozen(event.data), + }) + if (reject) { + reject = false + throw new Error('reject first candidate') + } + }) + ctx.on('session/event', (_observedSession, event) => { observed.push(event) }) + + expect(() => session.append('turn/start', { + turn: 1, + trigger: { kind: 'message', source: { kind: 'user' } }, + })).toThrow('reject first candidate') + expect(session.events).toEqual([]) + expect(observed).toEqual([]) + + const appended = session.append('turn/start', { + turn: 1, + trigger: { kind: 'message', source: { kind: 'user' } }, + }) + expect(validations.map(({ logLength, frozen }) => ({ logLength, frozen }))).toEqual([ + { logLength: 0, frozen: true }, + { logLength: 0, frozen: true }, + ]) + expect(validations.map(({ event }) => event.seq)).toEqual([0, 0]) + expect(validations[1]!.event).toBe(appended) + expect(session.events).toEqual([appended]) + expect(observed).toEqual([appended]) + }) + + it('resolves session/event dispatch before commit so instrumentation failure cannot hide a logged event', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const session = ctx.sessions.create(SessionId('dispatch-check')) + const observed: SessionEvent[] = [] + ctx.on('internal/dispatch', (_mode, name) => { + if (name === 'session/event') throw new Error('dispatch instrumentation rejected the carrier') + }) + ctx.on('session/event', (_observedSession, event) => { observed.push(event) }) + + expect(() => session.append('turn/start', { + turn: 1, + trigger: { kind: 'message', source: { kind: 'user' } }, + })).toThrow('dispatch instrumentation rejected the carrier') + expect(session.events).toEqual([]) + expect(observed).toEqual([]) + }) + + it('rejects prepend or append instrumentation that replaces the accepted observer tuple', async () => { + for (const prepend of [true, false]) { + const ctx = new Context() + await ctx.plugin(SessionStore) + const session = ctx.sessions.create(SessionId(`dispatch-tuple-${prepend}`)) + const replacementSession = new Session(SessionId('replacement')) + const replacementEvent = { + type: 'turn/end', + seq: 99, + time: 1, + data: { turn: 99, reason: { kind: 'completed' } }, + } as SessionEvent + const observed: Array<{ session: Session; event: SessionEvent }> = [] + let replace = true + ctx.on('internal/dispatch', (_mode, name, args) => { + if (name !== 'session/event' || !replace) return + args[0] = replacementSession + args[1] = replacementEvent + }, { prepend }) + ctx.on('session/event', (observedSession, event) => { + observed.push({ session: observedSession, event }) + }) + + expect(() => session.append('turn/start', { + turn: 1, + trigger: { kind: 'message', source: { kind: 'user' } }, + })).toThrow('session/event internal dispatch replaced the accepted callback tuple') + expect(session.events).toEqual([]) + expect(observed).toEqual([]) + + replace = false + const appended = session.append('turn/start', { + turn: 1, + trigger: { kind: 'message', source: { kind: 'user' } }, + }) + expect(session.events).toEqual([appended]) + expect(observed).toEqual([{ session, event: appended }]) + } + }) + + it('rejects if a bare session becomes attached while caller data is materialized', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const session = new Session(SessionId('attach-during-append')) + const observed: SessionEvent[] = [] + let sessionEventDispatches = 0 + let detach!: () => void + ctx.on('internal/dispatch', (_mode, name) => { + if (name === 'session/event') sessionEventDispatches += 1 + }) + ctx.on('session/event', (_observedSession, event) => { observed.push(event) }) + const data = { + get todos(): TodoItem[] { + detach = ctx.sessions.enter(session) + ctx.sessions.announce(session) + return [] + }, + } + + expect(() => session.append('todo/write', data)) + .toThrow('session attachment changed while append input was being accepted') + expect(ctx.sessions.get(session.id)).toBe(session) + expect(session.events).toEqual([]) + expect(sessionEventDispatches).toBe(0) + expect(observed).toEqual([]) + + const appended = session.append('todo/write', { todos: [] }) + expect(session.events).toEqual([appended]) + expect(sessionEventDispatches).toBe(1) + expect(observed).toEqual([appended]) + detach() + }) + + it('rejects a transient attach and detach while caller data is materialized', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const session = new Session(SessionId('attach-detach-during-append')) + const lifecycle: string[] = [] + const observed: SessionEvent[] = [] + ctx.on('session/created', () => { lifecycle.push('created') }) + ctx.on('session/disposed', () => { lifecycle.push('disposed') }) + ctx.on('session/event', (_observedSession, event) => { observed.push(event) }) + const data = { + get todos(): TodoItem[] { + const detach = ctx.sessions.enter(session) + ctx.sessions.announce(session) + detach() + return [] + }, + } + + expect(() => session.append('todo/write', data)) + .toThrow('session attachment changed while append input was being accepted') + expect(ctx.sessions.get(session.id)).toBeUndefined() + expect(session.events).toEqual([]) + expect(lifecycle).toEqual(['created', 'disposed']) + expect(observed).toEqual([]) + }) + + it('contains a reentrant observer append without reordering later observers', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + const session = ctx.sessions.create(SessionId('reentrant-observer')) + const heard: SessionEvent[] = [] + ctx.on('session/event', (observedSession) => { + observedSession.append('todo/write', { todos: [] }) + }) + ctx.on('session/event', (_observedSession, event) => { heard.push(event) }) + + const appended = session.append('turn/start', { + turn: 1, + trigger: { kind: 'message', source: { kind: 'user' } }, + }) + expect(session.events).toEqual([appended]) + expect(heard).toEqual([appended]) + expect(warnings).toEqual([ + 'session "reentrant-observer": session/event listener threw: Error: session append cannot reenter while another append is being accepted or published', + ]) + }) + + it('keeps observer failures contained when warning output itself throws', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + ctx.logger.warn = (() => { throw new Error('logger unavailable') }) as typeof ctx.logger.warn + const session = ctx.sessions.create(SessionId('throwing-logger')) + const heard: SessionEvent[] = [] + ctx.on('session/event', () => { throw new Error('sync observer') }) + ctx.on('session/event', () => Promise.reject(new Error('async observer')) as never) + ctx.on('session/event', (_observedSession, event) => { heard.push(event) }) + + let appended!: SessionEvent + expect(() => { + appended = session.append('turn/start', { + turn: 1, + trigger: { kind: 'message', source: { kind: 'user' } }, + }) + }).not.toThrow() + await Promise.resolve() + await Promise.resolve() + + expect(session.events).toEqual([appended]) + expect(heard).toEqual([appended]) + }) + + it('defers detach through dispatch resolution, commit, and observer publication', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const order: string[] = [] + const session = ctx.sessions.prepare(SessionId('detach-during-append')) + const detach = ctx.sessions.enter(session) + ctx.on('internal/dispatch', (_mode, name, args) => { + if (name !== 'session/event') return + const session = args[0] as Session + order.push(`resolve:${ctx.sessions.get(session.id) === session ? 'live' : 'detached'}`) + detach() + }) + ctx.on('session/event', (session) => { + order.push(`observe:${ctx.sessions.get(session.id) === session ? 'live' : 'detached'}`) + }) + ctx.on('session/disposed', (session) => { + order.push(`dispose:${ctx.sessions.get(session.id) === session ? 'live' : 'detached'}`) + }) + ctx.sessions.announce(session) + + const appended = session.append('turn/start', { + turn: 1, + trigger: { kind: 'message', source: { kind: 'user' } }, + }) + + expect(session.events).toEqual([appended]) + expect(order).toEqual(['resolve:live', 'observe:live', 'dispose:detached']) + expect(ctx.sessions.get(session.id)).toBeUndefined() + }) + it('observes async session/created rejection without rolling back or starving peers', async () => { const ctx = new Context() await ctx.plugin(SessionStore) @@ -1181,6 +1452,46 @@ describe('SessionStore', () => { 'session "contained-disposal": session/disposed listener rejected: Error: async disposed', ]) }) + + it('contains internal dispatch failure after session detachment', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + const heard: Session[] = [] + ctx.on('internal/dispatch', (_mode, name) => { + if (name === 'session/disposed') throw new Error('disposed dispatch instrumentation') + }) + ctx.on('session/disposed', (session) => { heard.push(session) }) + const session = ctx.sessions.prepare(SessionId('disposed-dispatch')) + const detach = ctx.sessions.enter(session) + ctx.sessions.announce(session) + + expect(() => { detach() }).not.toThrow() + expect(ctx.sessions.get(session.id)).toBeUndefined() + expect(heard).toEqual([]) + expect(warnings).toEqual([ + 'session "disposed-dispatch": session/disposed dispatch threw: Error: disposed dispatch instrumentation', + ]) + }) + + it('does not let internal dispatch replace the disposed callback tuple', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const replacement = new Session(SessionId('replacement-disposed')) + const heard: Session[] = [] + ctx.on('internal/dispatch', (_mode, name, args) => { + if (name === 'session/disposed') args[0] = replacement + }) + ctx.on('session/disposed', (session) => { heard.push(session) }) + const session = ctx.sessions.prepare(SessionId('fixed-disposed-tuple')) + const detach = ctx.sessions.enter(session) + ctx.sessions.announce(session) + + detach() + + expect(heard).toEqual([session]) + }) }) describe('todo/write event', () => { diff --git a/packages/support/invariants/README.md b/packages/support/invariants/README.md index 4f50ec42f3..c4b909773d 100644 --- a/packages/support/invariants/README.md +++ b/packages/support/invariants/README.md @@ -6,6 +6,8 @@ Dev-mode event-contract assertions. This pure-listener plugin checks relationshi Session itself owns immutable log storage in every composition: it takes one lossless JSON snapshot of each accepted event, deep-freezes that record, and exposes the log through immutable array snapshots. The invariants plugin checks the cross-record and cross-seam rules that storage immutability cannot express. +Session-log assertions run during Cordis `internal/dispatch`, while `Session.append()` is resolving the `session/event` callback snapshot but before it pushes the candidate into the log. A valid transition is staged by exact event identity and applied to the live trace only when that same committed event reaches the plugin's contained post-commit listener. A later internal dispatch check can therefore veto without advancing either the log or the invariant trace, while ordinary `session/event` observer failures remain observe-only. + ## Plugin A functional plugin — register the module namespace (this is what loading by name in `cordis.yml` does): @@ -19,7 +21,7 @@ declare const ctx: Context await ctx.plugin(Invariants) ``` -`inject`: `['sessions']` — it reads `ctx.sessions.list()` at apply time to rebuild trace state for sessions that already exist, so a hot reload mid-turn does not falsely reject the next event. It registers only listeners and has no configuration. +`inject`: `['sessions']` — it reads `ctx.sessions.list()` at apply time to rebuild trace state for sessions that already exist, so a hot reload mid-turn does not falsely reject the next event. The oracle listeners are explicitly global so pre-commit staging and post-commit application keep the same audience even if the plugin is mounted under a scoped context; their cleanup still belongs to that mounting fiber. The plugin has no configuration. ## Invariants asserted diff --git a/packages/support/invariants/src/index.ts b/packages/support/invariants/src/index.ts index 8d8f52f3d7..20396c4f5d 100644 --- a/packages/support/invariants/src/index.ts +++ b/packages/support/invariants/src/index.ts @@ -21,7 +21,7 @@ import type { Context } from 'cordis' import { carrierKeyOf, isScopeCarrier } from '@deepseek-ai/dsh-scope' import type { AssembleContext } from '@deepseek-ai/dsh-system-prompt' import type { ToolExecution } from '@deepseek-ai/dsh-tools' -import { HarnessError } from '@deepseek-ai/dsh-llm' +import { assertNever, HarnessError } from '@deepseek-ai/dsh-llm' import type { CallId, GenerateOptions } from '@deepseek-ai/dsh-llm' import type { Agent, AgentStatus } from '@deepseek-ai/dsh-agent' import { Session, SessionId, foldRequestHeader } from '@deepseek-ai/dsh-session' @@ -70,6 +70,23 @@ interface SessionTrace { surface: number[] } +/** One accepted event's deferred mutation of a live session trace. */ +interface SessionTraceTransition { + /** Scalar state after the event commits. */ + scalars: Pick + /** The event's mutation of the open step's pending call set. */ + pendingCalls: + | { kind: 'none' } + | { kind: 'add' | 'delete'; callId: CallId } + | { kind: 'clear' } + /** The event's mutation of the derived surface order. */ + surface: + | { kind: 'none' | 'append' } + | { kind: 'replace'; start: number; count: number } + /** The committed event sequence to add to the known-sequence set. */ + seq: number +} + /** Event payload prefix for scoped seams whose first argument names its agent. */ interface AgentSubject { agent: Agent @@ -84,14 +101,19 @@ function requireOpenStep(trace: SessionTrace, kind: string, turn: number, step: } } -/** Assert one appended event against the per-session invariants. */ -function checkEvent(trace: SessionTrace, event: SessionEvent): void { +/** Validate one candidate event without mutating the committed session trace. */ +function validateEvent(trace: SessionTrace, event: SessionEvent): SessionTraceTransition { // seq is strictly monotonic — the spine of replay equivalence. lastSeq // starts at -1, so the first event (seq 0) passes. if (event.seq <= trace.lastSeq) { throw new InvariantError(`seq must strictly increase: saw ${event.seq} after ${trace.lastSeq}`) } - trace.lastSeq = event.seq + let openTurn = trace.openTurn + let openStep = trace.openStep + let nextTurn = trace.nextTurn + let nextStep = trace.nextStep + let pendingCalls: SessionTraceTransition['pendingCalls'] = { kind: 'none' } + let surface: SessionTraceTransition['surface'] = { kind: 'none' } // --- Surface invariants --- // Surface metadata (sourceEventSeqs, surfaceOp) is only valid on @@ -133,7 +155,7 @@ function checkEvent(trace: SessionTrace, event: SessionEvent): void { // positional range — every shadowed node must appear in sourceEventSeqs. if (se.surfaceOp !== undefined) { if (se.surfaceOp === 'append') { - trace.surface.push(event.seq) + surface = { kind: 'append' } } else { const { start, end } = se.surfaceOp const startIdx = trace.surface.indexOf(start) @@ -155,9 +177,7 @@ function checkEvent(trace: SessionTrace, event: SessionEvent): void { if (missing.length > 0) { throw new InvariantError(`surface replace: sourceEventSeqs must include every shadowed surface node; missing ${missing.join(', ')}`) } - // Apply the replace to the tracked surface: the new node takes the - // range's position so order stays in sync for later replaces. - trace.surface.splice(startIdx, shadowed.length, event.seq) + surface = { kind: 'replace', start: startIdx, count: shadowed.length } } } @@ -176,8 +196,8 @@ function checkEvent(trace: SessionTrace, event: SessionEvent): void { if (event.data.turn !== trace.nextTurn) { throw new InvariantError(`turn/start expected turn ${trace.nextTurn}, got ${event.data.turn}`) } - trace.openTurn = event.data.turn - trace.nextStep = 1 + openTurn = event.data.turn + nextStep = 1 break } case 'turn/end': { @@ -187,8 +207,8 @@ function checkEvent(trace: SessionTrace, event: SessionEvent): void { if (trace.openStep !== null) { throw new InvariantError(`turn/end ${event.data.turn} while step ${trace.openStep} is still open`) } - trace.openTurn = null - trace.nextTurn += 1 + openTurn = null + nextTurn += 1 break } case 'step/start': { @@ -202,16 +222,16 @@ function checkEvent(trace: SessionTrace, event: SessionEvent): void { if (event.data.step !== trace.nextStep) { throw new InvariantError(`step/start expected step ${trace.nextStep} in turn ${event.data.turn}, got ${event.data.step}`) } - trace.openStep = event.data.step + openStep = event.data.step break } case 'step/end': { requireOpenStep(trace, 'step/end', event.data.turn, event.data.step) // A result must arrive in the step that issued the call; orphan calls // (a step that errored before its result) do not carry to the next step. - trace.pendingCalls.clear() - trace.openStep = null - trace.nextStep += 1 + pendingCalls = { kind: 'clear' } + openStep = null + nextStep += 1 break } case 'assistant/chunk': { @@ -224,7 +244,7 @@ function checkEvent(trace: SessionTrace, event: SessionEvent): void { } case 'tool/call': { requireOpenStep(trace, 'tool/call', event.data.turn, event.data.step) - trace.pendingCalls.add(event.data.callId) + pendingCalls = { kind: 'add', callId: event.data.callId } break } case 'tool/result': { @@ -233,9 +253,10 @@ function checkEvent(trace: SessionTrace, event: SessionEvent): void { // does NOT hold: a call may have no result — a throwing tool-execution // pipeline step ends the turn with no tool/result, which is legal.) const syntheticInterrupted = event.data.isError && event.data.error?.code === 'interrupted' - if (!trace.pendingCalls.delete(event.data.callId) && !syntheticInterrupted) { + if (!trace.pendingCalls.has(event.data.callId) && !syntheticInterrupted) { throw new InvariantError(`tool/result for ${event.data.callId} with no prior tool/call in this step`) } + pendingCalls = { kind: 'delete', callId: event.data.callId } break } // Turn-enclosure (the turn-enclosure RFC): EVERY session event not handled by a boundary @@ -255,8 +276,52 @@ function checkEvent(trace: SessionTrace, event: SessionEvent): void { break } } - // Track every seq seen — used above to validate sourceEventSeqs references. - trace.knownSeqs.add(event.seq) + return { + scalars: { lastSeq: event.seq, openTurn, openStep, nextTurn, nextStep }, + pendingCalls, + surface, + seq: event.seq, + } +} + +/** Apply one already-validated transition after its event commits. */ +function applyTransition(trace: SessionTrace, transition: SessionTraceTransition): void { + Object.assign(trace, transition.scalars) + switch (transition.pendingCalls.kind) { + case 'none': + break + case 'add': + trace.pendingCalls.add(transition.pendingCalls.callId) + break + case 'delete': + trace.pendingCalls.delete(transition.pendingCalls.callId) + break + case 'clear': + trace.pendingCalls.clear() + break + /* v8 ignore next -- validateEvent produces this closed transition union */ + default: + assertNever(transition.pendingCalls, 'session trace pending-call transition') + } + switch (transition.surface.kind) { + case 'none': + break + case 'append': + trace.surface.push(transition.seq) + break + case 'replace': + trace.surface.splice(transition.surface.start, transition.surface.count, transition.seq) + break + /* v8 ignore next -- validateEvent produces this closed transition union */ + default: + assertNever(transition.surface, 'session trace surface transition') + } + trace.knownSeqs.add(transition.seq) +} + +/** Validate and apply one event while rebuilding an already-committed log. */ +function replayEvent(trace: SessionTrace, event: SessionEvent): void { + applyTransition(trace, validateEvent(trace, event)) } /** Legal agent status transitions (the only state machine the loop guarantees). */ @@ -284,6 +349,11 @@ function checkTransition(from: AgentStatus | undefined, to: AgentStatus): void { */ export function apply(ctx: Context): void { const traces = new WeakMap() + const stagedTransitions = new WeakMap() // Agent status has no stored history to replay; the first observation after // (re-)apply seeds the baseline, so a reload never produces a false positive. const lastStatus = new WeakMap() @@ -304,14 +374,14 @@ export function apply(ctx: Context): void { const trace = freshTrace() traces.set(session, trace) for (const event of session.events) { - checkEvent(trace, event) + replayEvent(trace, event) } return trace } // Every store-created session (the only kind that emits session/event) is - // seeded first — via ctx.sessions.list() at apply or session/created — so - // the fallback is a defensive guard, never hit in practice. + // seeded first — via ctx.sessions.list() at apply or session/created — so the + // fallback is a defensive guard, never hit in practice. /* v8 ignore next -- traceFor's fallback: session/event always follows a seed */ const traceFor = (session: Session): SessionTrace => traces.get(session) ?? seedSession(session) @@ -322,16 +392,51 @@ export function apply(ctx: Context): void { // A newly created session may arrive seeded/forked (the constructor copies // the seed WITHOUT emitting session/event), so replay its log here too. - ctx.on('session/created', (session) => { seedSession(session) }) + ctx.on('session/created', (session) => { seedSession(session) }, { global: true }) ctx.on('session/event', (session, event) => { - checkEvent(traceFor(session), event) - }) + // Session resolves dispatch before committing, so internal/dispatch has + // already staged this exact event. A later dispatch veto skips every + // session/event callback and therefore leaves the live trace unchanged. + const staged = stagedTransitions.get(event) + /* v8 ignore next 2 -- internal/dispatch stages the exact callback arguments */ + if (staged === undefined || staged.session !== session) { + throw new InvariantError('session/event reached publication without matching pre-commit validation') + } + stagedTransitions.delete(event) + applyTransition(staged.trace, staged.transition) + }, { global: true }) ctx.on('agent/status', (agent, status) => { checkTransition(lastStatus.get(agent), status) lastStatus.set(agent, status) - }) + }, { global: true }) + + // --- Setup-drives invariant --------------------------------------------- + // + // CreateAgentOptions.setup COMPOSES the agent's scoped world; it must not + // DRIVE the agent. ReactLoopAgent rejects every driving verb structurally + // until rollback-covered publication reaches the session-start boundary; + // this event-level invariant remains the cross-implementation backstop for + // alternate Agent implementations and raw session writes. A turn/start + // candidate before agent/session-start is rejected by internal/dispatch, + // before Session commits it. Sessions of agents that exist BEFORE this + // plugin applies are marked started (their ordering is unknowable after the + // fact — never a false positive on HMR). `agents` is read via ctx.get (a + // strict, optional store lookup) rather than injected: the invariants plugin + // must load in harnesses that carry no agent registry at all (bare session + // tests), where this check simply never trips. + const sessionStarted = new WeakSet() + for (const agent of ctx.get('agents')?.list() ?? []) sessionStarted.add(agent.session) + const assertSessionStartedBeforeTurn = (session: Session, event: SessionEvent): void => { + if (event.type !== 'turn/start' || sessionStarted.has(session)) return + const owner = ctx.get('agents')?.list().find(agent => agent.session === session) + if (owner === undefined) return + throw new InvariantError( + `agent "${owner.id}": a turn opened before agent/session-start fired — ` + + 'CreateAgentOptions.setup composes the scoped world, it must not drive the agent ' + + '(send/steer/inject belong after creation returns)') + } // --- Scoped-dispatch invariants (the agent-scoping seam) --------------- // @@ -386,6 +491,22 @@ export function apply(ctx: Context): void { `"${name}" was dispatched with a scope carrier keyed to a DIFFERENT subject than its arguments name — ` + 'the carrier key and the event\'s subject must be the same object (use agentEvents(ctx, agent))') } + if (name === 'agent/session-start') { + // Mark before product listeners run: a prepended session-start listener is + // explicitly allowed to inject the first turn's context synchronously. + sessionStarted.add((args[0] as Agent).session) + } + if (name === 'session/event') { + const [session, event] = args as [Session, SessionEvent] + const trace = traceFor(session) + const transition = validateEvent(trace, event) + assertSessionStartedBeforeTurn(session, event) + // The exact event identity reaches the contained post-commit listener. + // A later internal/dispatch listener may still veto; because validation + // is pure, abandoning this weakly keyed transition does not advance the + // committed trace or retain the session. + stagedTransitions.set(event, { session, trace, transition }) + } // The assembly context must never carry the agent DX field without the // scope layer selector: the assembly would silently miss the agent's // scoped sections/tools (use assembleContextFor(agent)). @@ -399,33 +520,6 @@ export function apply(ctx: Context): void { } }, { global: true }) - // --- Setup-drives invariant --------------------------------------------- - // - // CreateAgentOptions.setup COMPOSES the agent's scoped world; it must not - // DRIVE the agent. ReactLoopAgent rejects every driving verb structurally - // until rollback-covered publication reaches the session-start boundary; this event-level invariant remains the - // cross-implementation backstop for alternate Agent implementations and raw - // session writes. A turn/start appended before agent/session-start is a - // creation-time misuse, reported at the appending call site. Sessions of - // agents that exist BEFORE this plugin applies are marked started (their - // ordering is unknowable after the fact — never a false positive on HMR). - // `agents` is read via ctx.get (a strict, optional store lookup) rather - // than injected: the invariants plugin must load in harnesses that carry - // no agent registry at all (bare session tests), where this check simply - // never trips. - const sessionStarted = new WeakSet() - for (const agent of ctx.get('agents')?.list() ?? []) sessionStarted.add(agent.session) - ctx.on('agent/session-start', (agent) => { sessionStarted.add(agent.session) }) - ctx.on('session/event', (session, event) => { - if (event.type !== 'turn/start' || sessionStarted.has(session)) return - const owner = ctx.get('agents')?.list().find(agent => agent.session === session) - if (owner === undefined) return - throw new InvariantError( - `agent "${owner.id}": a turn opened before agent/session-start fired — ` - + 'CreateAgentOptions.setup composes the scoped world, it must not drive the agent ' - + '(send/steer/inject belong after creation returns)') - }) - // Request-reconstruction cross-check (the reconstructability RFC): a // loop-built request — frozen envelope + live sessionId is the marker; a // hand-built one-shot (compaction summarize) is unfrozen and skipped — must @@ -501,5 +595,5 @@ export function apply(ctx: Context): void { throw new InvariantError(`llm request for session "${String(session.id)}" diverges from the folded request header`) } return next() - }, { prepend: true }) + }, { global: true, prepend: true }) } diff --git a/packages/support/invariants/tests/invariants.spec.ts b/packages/support/invariants/tests/invariants.spec.ts index 44a87abf8c..efbf1dd978 100644 --- a/packages/support/invariants/tests/invariants.spec.ts +++ b/packages/support/invariants/tests/invariants.spec.ts @@ -1,6 +1,6 @@ import { describe, expect, it, vi } from 'vitest' import { Context } from 'cordis' -import { scopeTarget } from '@deepseek-ai/dsh-scope' +import { createScope, scopeTarget } from '@deepseek-ai/dsh-scope' import { CallId } from '@deepseek-ai/dsh-llm' import type { Agent } from '@deepseek-ai/dsh-agent' import SessionStore, { Session, SessionId } from '@deepseek-ai/dsh-session' @@ -21,6 +21,25 @@ function mockAgent(id: string): Agent { } describe('session-log invariants', () => { + it('keeps pre-commit staging and post-commit application global when mounted under a scope', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + let scopedCtx!: Context + await ctx.plugin(Object.assign((inner: Context) => { + scopedCtx = createScope(inner, {}).ctx + }, { inject: ['sessions'] })) + await scopedCtx.plugin(Invariants) + const globalSession = ctx.sessions.create(SessionId('global-under-scoped-invariants')) + + expect(() => { + globalSession.append('turn/start', { + turn: 1, + trigger: { kind: 'message', source: { kind: 'user' } }, + }) + globalSession.append('turn/end', { turn: 1, reason: { kind: 'completed' } }) + }).not.toThrow() + }) + it('accepts a well-formed turn/step/tool sequence', async () => { const { ctx } = await setup() const session = ctx.sessions.create() @@ -37,6 +56,75 @@ describe('session-log invariants', () => { }).not.toThrow() }) + it('does not advance the trace when a later internal-dispatch listener vetoes', async () => { + const { ctx } = await setup() + const session = ctx.sessions.create(SessionId('dispatch-veto-rollback')) + let veto = true + ctx.on('internal/dispatch', (_mode, name) => { + if (name !== 'session/event' || !veto) return + veto = false + throw new Error('later dispatch veto') + }) + + expect(() => session.append('turn/start', { + turn: 1, + trigger: { kind: 'message', source: { kind: 'user' } }, + })).toThrow('later dispatch veto') + expect(session.events).toEqual([]) + + expect(() => { + session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) + session.append('turn/end', { turn: 1, reason: { kind: 'completed' } }) + }).not.toThrow() + expect(session.events.map(event => event.type)).toEqual(['turn/start', 'turn/end']) + }) + + it('does not stage a substituted candidate from prepended internal instrumentation', async () => { + const { ctx } = await setup() + const session = ctx.sessions.create(SessionId('dispatch-substitution-rollback')) + let substitute = true + const replacement = { + type: 'turn/start', + seq: 0, + time: 1, + data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }, + } as const + ctx.on('internal/dispatch', (_mode, name, args) => { + if (name !== 'session/event' || !substitute) return + substitute = false + args[1] = replacement + }, { prepend: true }) + + expect(() => session.append('turn/start', { + turn: 1, + trigger: { kind: 'message', source: { kind: 'user' } }, + })).toThrow('session/event internal dispatch replaced the accepted callback tuple') + expect(session.events).toEqual([]) + + expect(() => { + session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) + session.append('turn/end', { turn: 1, reason: { kind: 'completed' } }) + }).not.toThrow() + }) + + it('applies the committed transition after a prepended observer throws', async () => { + const { ctx } = await setup() + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + const session = ctx.sessions.create(SessionId('postcommit-peer')) + ctx.on('session/event', () => { throw new Error('hostile observer') }, { prepend: true }) + + expect(() => { + session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) + session.append('turn/end', { turn: 1, reason: { kind: 'completed' } }) + }).not.toThrow() + expect(session.events.map(event => event.type)).toEqual(['turn/start', 'turn/end']) + expect(warnings).toEqual([ + 'session "postcommit-peer": session/event listener threw: Error: hostile observer', + 'session "postcommit-peer": session/event listener threw: Error: hostile observer', + ]) + }) + it('rejects a non-monotonic seq (replay spine)', async () => { const { ctx } = await setup() const session = ctx.sessions.create() @@ -861,10 +949,19 @@ describe('scoped-dispatch invariants', () => { expect(() => { session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } }) }).toThrow(/turn opened before agent\/session-start/) - // After session-start fires, turns open freely. - ctx.emit(scopeTarget(agent, agent), 'agent/session-start', agent, 'startup') - expect(() => { + expect(session.events).toEqual([]) + // The internal boundary marks the session before even a prepended product + // listener runs, so the supported session-start injection pattern can open + // and close its one-shot context turn synchronously. + ctx.on('agent/session-start', () => { + session.append('turn/start', { turn: 1, trigger: { kind: 'injection', source: { kind: 'plugin', plugin: 'test' } } }) session.append('turn/end', { turn: 1, reason: { kind: 'completed' } }) + }, { prepend: true }) + expect(() => { + ctx.emit(scopeTarget(agent, agent), 'agent/session-start', agent, 'startup') + }).not.toThrow() + expect(session.events.map(event => event.type)).toEqual(['turn/start', 'turn/end']) + expect(() => { session.append('turn/start', { turn: 2, trigger: { kind: 'message', source: { kind: 'user' } } }) }).not.toThrow() }) diff --git a/packages/ui/acp/README.md b/packages/ui/acp/README.md index 2f1f35adc4..f5734e1f10 100644 --- a/packages/ui/acp/README.md +++ b/packages/ui/acp/README.md @@ -71,7 +71,7 @@ When the client does NOT advertise the capability, none of the `_meta`/terminal ## Settle-exactly-once -A `session/prompt` resolves (or rejects) exactly once, keyed off the canonical session log (the `session/event` stream). One listener captures the prompt's owning turn from the log's `turn/start` and settles on the matching `turn/end` — the durable boundary event (`closeTurn` appends it unconditionally; there is no `agent/*` turn mirror). A prompt settles only on ITS OWN turn (`inflight.turn === turn/end.turn`), so a stale `turn/end` for a previously-cancelled turn whose end arrives late can never settle the wrong prompt. A turn that ends `error` REJECTS the RPC with an internal error carrying the failure message (ACP has no error stop reason); every other reason resolves via the codec. As a fallback, when the agent settles to `idle`/`disposed` with a prompt still pending — e.g. a peer `session/event` listener registered before the bridge threw and starved the bridge's listener — an `agent/status` handler reconciles the prompt from the log (the owning turn's `turn/end`, or `cancelled` if the turn was torn down without one). An empty/whitespace prompt is rejected up front — it would queue no work, so no turn would start and the RPC would hang. +A `session/prompt` resolves (or rejects) exactly once, keyed off the canonical session log (the `session/event` stream). One listener captures the prompt's owning turn from the log's `turn/start` and settles on the matching `turn/end` — the durable boundary event (`closeTurn` appends it unconditionally; there is no `agent/*` turn mirror). A prompt settles only on ITS OWN turn (`inflight.turn === turn/end.turn`), so a stale `turn/end` for a previously-cancelled turn whose end arrives late can never settle the wrong prompt. A turn that ends `error` REJECTS the RPC with an internal error carrying the failure message (ACP has no error stop reason); every other reason resolves via the codec. Session contains post-commit observer failures per listener, so another subscriber cannot starve the bridge. As defensive cross-seam reconciliation, an `agent/status` handler checks the log whenever the agent reaches `idle`/`disposed` with a prompt still pending, settling from the owning turn's `turn/end` or as `cancelled` if teardown left no clean boundary. An empty/whitespace prompt is rejected up front — it would queue no work, so no turn would start and the RPC would hang. ## Permission prompts diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index 35ff870080..5cd24c2c73 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -308,11 +308,10 @@ interface SessionRecord { * so a later stale `turn/end` finds no pending prompt. * * `logWatermark` is the session log length at the moment the prompt was - * installed (before `send()`). The settle-from-log fallback uses it to infer - * the owning `turn/start` from the canonical log even when the live - * `session/event` capture was starved (a peer listener that throws on - * `turn/start` — see `settleFromLog`): the prompt owns the FIRST `turn/start` - * appended at or after this watermark. + * installed (before `send()`). Defensive settle-from-log reconciliation uses + * it to infer the owning `turn/start` if status reaches idle/disposed before + * live correlation settled the prompt: the prompt owns the FIRST message + * `turn/start` appended at or after this watermark. */ inflight: { resolve: (reason: StopReason) => void @@ -338,12 +337,11 @@ interface SessionRecord { /** * Drive the in-flight prompt's settle from the harness event stream. The bridge * settles off the durable log: the `turn/end` session event on the - * `session/event` feed for the prompt's own turn, with the agent - * erroring/settling to idle as a fallback (docs/defensive-patterns.md "honor - * cross-seam contracts on BOTH sides") for the case where a throwing peer `session/event` listener - * starved the bridge's listener before it saw the boundary. The first of these - * to fire settles the prompt; `settle` is then cleared so the others are no-ops - * (settle-exactly-once). + * `session/event` feed for the prompt's own turn, with idle/disposed status as + * defensive log reconciliation (docs/defensive-patterns.md "honor cross-seam + * contracts on BOTH sides"). Session contains post-commit observer failures, + * so peers cannot starve this feed. The first settlement path clears the slot, + * making every later signal a no-op. */ export function apply(ctx: Context, config: AcpConfig): void { // Capture the injected services NOW, during apply(), while we are inside this @@ -527,23 +525,18 @@ export function apply(ctx: Context, config: AcpConfig): void { settleFromTurnEnd(inflight, event.data.reason) }) - // Settle fallback: a `session/event` listener registered BEFORE ACP that - // throws (on `turn/start` OR `turn/end`) would, via cordis `emit`'s - // stop-on-throw, starve ACP's listener above — the prompt would hang or, if - // only the turn number was missed, settle as the wrong outcome. So when the - // agent settles to `idle` (or is disposed), reconcile against the canonical - // log: determine the prompt's owning turn (the captured `turn`, or — if the - // live capture was starved — the FIRST `turn/start` appended at/after the - // install-time `logWatermark`), then settle from that turn's `turn/end` - // (reject on error, resolve via codec), or `cancelled` if no owning turn ever - // started. Never double-settles — clears `inflight` first. + // Defensive settle fallback: when the agent reaches idle/disposed while a + // prompt is still pending, reconcile against the canonical log. Determine + // the owning turn from live capture or the first message turn after the + // install-time watermark, then settle from its turn/end; if no clean owning + // turn exists, settle cancelled. The slot is cleared first, so this cannot + // double-settle against the live session/event path. const settleFromLog = (rec: SessionRecord): void => { const inflight = rec.inflight if (inflight === undefined) return const events = rec.agent.session.events - // The owning turn number: the captured one, or — if the live capture was - // starved — inferred from the log as the first MESSAGE-triggered turn opened - // at/after the watermark. The message-trigger filter matches the live + // The owning turn number: the captured one, or inferred from the log as the + // first MESSAGE-triggered turn opened at/after the watermark. The filter matches the live // capture: a one-shot `injection` turn a plugin may open between // prompt-install and the prompt's turn is NOT the prompt's turn. Undefined // only if no message turn ever started for this prompt. @@ -568,9 +561,8 @@ export function apply(ctx: Context, config: AcpConfig): void { settleFromTurnEnd(inflight, end.data.reason) } - // On a settle to idle/disposed, reconcile any still-pending prompt from the - // log (covers a starved `session/event` listener — see settleFromLog). A mid- - // step disposal that never appended a clean turn/end resolves `cancelled`. + // On idle/disposed, reconcile any still-pending prompt from the log. A + // mid-step disposal that never appended a clean turn/end resolves `cancelled`. // Demux via the agent→sessionId reverse map. ctx.on('agent/status', (agent, status: AgentStatus) => { const sessionId = bySession.get(agent) @@ -902,9 +894,9 @@ export function apply(ctx: Context, config: AcpConfig): void { // Install the in-flight slot BEFORE send() (send does not synchronously // flip status to running; the session/event listener records the turn // number and settle/rejects it). Capture the log length now as the - // watermark: the settle-from-log fallback infers the owning turn/start - // as the first one appended at/after it, surviving a starved live - // capture. A turn that ends in error rejects this promise (the codec + // watermark: defensive status reconciliation can infer the owning + // turn/start if status arrives reentrantly after commit but before this + // bridge's live callback. A turn that ends in error rejects this promise (the codec // never produces an error stop reason). const stopReason = await new Promise((resolve, reject) => { rec.inflight = { resolve, reject, turn: undefined, logWatermark: rec.agent.session.events.length } @@ -1010,15 +1002,15 @@ export function apply(ctx: Context, config: AcpConfig): void { * quiescence"): for each session settle any pending prompt `cancelled`, then * run that session's {@link AgentHandle} `dispose()` — which stops the loop * (sets `disposed`, aborts the in-flight step), AWAITS the loop's exit (the - * final `turn/end` + `session/flush` are captured while the store-owned append observer is still + * final `turn/end` + `session/flush` are captured while the store-owned publication hooks are still * attached), unregisters the agent, and removes its session from the store. * The per-session disposes run in parallel. Idempotent — clears the `sessions` * map first and memoizes, so a second call (close racing dispose) is a no-op. * Shared by Cordis disposal AND client disconnect (`conn.closed`). * - * Per-agent disposal closes the former pre-step best-effort window — but via - * the DISPOSED path, not `cancel()`: the start-disposer resolves `handle.disposed`, - * which wakes the parked loop, and `isDisposed()` breaks the loop before a + * Per-agent disposal closes the queued-before-run window through the DISPOSED + * path, not `cancel()`: the start-disposer resolves `handle.disposed`, which + * wakes the parked loop, and `isDisposed()` breaks the loop before a * queued-but-not-yet-running turn can start (a turn cut off mid-flight ends * with reason `disposed`, not `aborted`). A bare client disconnect (resolves * `conn.closed` WITHOUT disposing the fiber) thus leaves NO registered agent diff --git a/packages/ui/acp/tests/dispose.spec.ts b/packages/ui/acp/tests/dispose.spec.ts index 9dbd72aa35..f02a7b0649 100644 --- a/packages/ui/acp/tests/dispose.spec.ts +++ b/packages/ui/acp/tests/dispose.spec.ts @@ -160,7 +160,7 @@ describe('acp bridge — disposal & HMR safety', () => { // The teardown-ORDER guarantee: a per-agent dispose must stop the loop, // AWAIT its exit (so the loop's final `turn/end` + `session/flush` fire // through the still-attached store observer → `session/event`), and only - // THEN detach that observer + remove the session. If the order were inverted + // THEN remove its publication hooks and session entry. If the order were inverted // (detach first), the closing events would never reach persistence. Drive a // CLEAN turn to completion, dispose JUST the bridge, then re-load the // persisted log from disk and assert the closing turn/end is on disk — the @@ -190,7 +190,7 @@ describe('acp bridge — disposal & HMR safety', () => { // produced BY the dispose itself. Here the model stream HANGS, so the turn is // still open when teardown runs: the composite agent effect stops the loop, // the loop unwinds and appends `turn/end {disposed}` + runs its final - // `session/flush` — all while the store-owned append observer is still attached (the session + // `session/flush` — all while the store-owned publication hooks are still attached (the session // detach is the LAST disposer in the same effect's LIFO chain) — and only // THEN is the session detached. If the order were inverted (or the session // were a racing SIBLING effect), the abort-produced `turn/end` would never @@ -255,7 +255,7 @@ describe('acp bridge — disposal & HMR safety', () => { // into ONE composite effect whose disposers run as a `.then()` chain. The // register disposer emits `agent/disposed`; if a listener throws and the // emit is UNCONTAINED, the rejected chain skips the LATER session-detach - // disposer — stranding the session in the store with its append observer attached (a + // disposer — stranding the session in the store with its publication hooks attached (a // leak AND a durability hole, since the new design relies on detach // running). The emit must be contained. Register a throwing listener, drive // a clean turn, dispose, and assert the session was STILL removed. diff --git a/packages/ui/acp/tests/turns.spec.ts b/packages/ui/acp/tests/turns.spec.ts index e182d5f2bf..3fc6eef8a6 100644 --- a/packages/ui/acp/tests/turns.spec.ts +++ b/packages/ui/acp/tests/turns.spec.ts @@ -3,7 +3,7 @@ import { mkdtemp, rm } from 'node:fs/promises' import { tmpdir } from 'node:os' import { join } from 'node:path' import { defineTool } from '@deepseek-ai/dsh-tools' -import { AgentId } from '@deepseek-ai/dsh-agent' +import { AgentId, agentEvents } from '@deepseek-ai/dsh-agent' import { PROTOCOL_VERSION } from '@agentclientprotocol/sdk' import { errorResponse, @@ -235,12 +235,9 @@ describe('acp bridge — turn outcomes', () => { expect(failed).toHaveLength(1) }) - it('settles via the log fallback when a prior session/event listener throws (starvation)', async () => { - // A peer session/event listener that runs BEFORE the bridge's listener - // throws on turn/end (prepend: true puts it first). cordis emit stops at the - // throw, so the bridge's session/event listener never sees turn/end and - // cannot settle there. The agent/status idle-fallback must reconcile the - // prompt from the log so the RPC settles instead of hanging. + it('settles successfully when an earlier turn/end observer throws', async () => { + // Session contains each post-commit observer failure, so a prepended peer + // cannot starve the bridge's live turn/end delivery. harness = await makeBridgeHarness({ storageDir, script: [textResponse('answer')] }) harness.ctx.on('session/event', (_s, event) => { if (event.type === 'turn/end') throw new Error('peer listener boom') @@ -250,9 +247,7 @@ describe('acp bridge — turn outcomes', () => { expect(res.stopReason).toBe('end_turn') }) - it('log fallback REJECTS when the starved turn ended in error', async () => { - // Same starvation as above, but the turn fails: the idle-fallback must - // reject the RPC from the logged turn/end{error}, not resolve. + it('still rejects a failed turn when an earlier turn/end observer throws', async () => { harness = await makeBridgeHarness({ storageDir, script: [errorResponse('starved boom')] }) harness.ctx.on('session/event', (_s, event) => { if (event.type === 'turn/end') throw new Error('peer listener boom') @@ -262,21 +257,49 @@ describe('acp bridge — turn outcomes', () => { .rejects.toThrow(/turn failed: starved boom/) }) - it('log fallback infers the owning turn when turn/START capture is starved', async () => { - // A peer listener throws on turn/START (not turn/end): the bridge never + it('captures and settles the owning turn when an earlier turn-start observer throws', async () => { + // Turn correlation still reaches the bridge after the throwing peer and // captures inflight.turn via the live stream. A throwing turn/start listener - // also FAILS the turn (the throw is recorded as the turn's error). Without - // the watermark inference the fallback would resolve `cancelled` (the bug); - // with it, it infers the owning turn from the log and REJECTS from that - // turn's error turn/end. (The model's own error is never reached — the turn - // failed at start — so the rejection carries the listener's failure.) - harness = await makeBridgeHarness({ storageDir, script: [textResponse('never runs')] }) + // Session contains post-commit callbacks independently. + // The model request and normal turn outcome therefore still occur. + harness = await makeBridgeHarness({ storageDir, script: [textResponse('answer')] }) harness.ctx.on('session/event', (_s, event) => { if (event.type === 'turn/start') throw new Error('peer listener boom on start') }, { prepend: true }) const sessionId = await newSession(harness) - await expect(harness.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'go' }] })) - .rejects.toThrow(/turn failed:/) + const result = await harness.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'go' }] }) + expect(result.stopReason).toBe('end_turn') + }) + + it('status reconciliation infers the owning message turn when teardown wins after turn/start', async () => { + harness = await makeBridgeHarness({ storageDir, script: [textResponse('background completion')] }) + const sessionId = await newSession(harness) + const agent = harness.ctx.agents.get(AgentId(sessionId))! + harness.ctx.on('session/event', (session, event) => { + if (session !== agent.session || event.type !== 'turn/start') return + // Inject the signal ordering the defensive fallback handles: disposal + // status after turn/start commits but before ACP's later live observer. + // This is event-level simulation; it does not mutate the test agent. + agentEvents(harness!.ctx, agent).emit('agent/status', 'disposed') + }, { prepend: true }) + + const result = await harness.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'go' }] }) + expect(result.stopReason).toBe('cancelled') + }) + + it('status reconciliation can settle from a committed turn/end before live delivery', async () => { + harness = await makeBridgeHarness({ storageDir, script: [textResponse('answer')] }) + const sessionId = await newSession(harness) + const agent = harness.ctx.agents.get(AgentId(sessionId))! + harness.ctx.on('session/event', (session, event) => { + if (session !== agent.session || event.type !== 'turn/end') return + // Inject a reentrant status signal after the boundary commits to exercise + // the defensive log path before ACP's captured callback runs. + agentEvents(harness!.ctx, agent).emit('agent/status', 'idle') + }, { prepend: true }) + + const result = await harness.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'go' }] }) + expect(result.stopReason).toBe('end_turn') }) it('a between-turn injection does not settle the prompt early (message-trigger correlation)', async () => { diff --git a/packages/ui/user-approval/README.md b/packages/ui/user-approval/README.md index 1c573cdf3f..b47f112aae 100644 --- a/packages/ui/user-approval/README.md +++ b/packages/ui/user-approval/README.md @@ -2,7 +2,7 @@ User-approval seam. Owns the `ctx.approval` service ([`ApprovalService`](src/index.ts)) and the one-shot permission vocabulary the harness shares: `ApprovalRequest` (agent + tool identity + reason + abort signal), the closed `ApprovalOutcome` union (`allowed-once` / `rejected` / `cancelled` / `unavailable`), the `ApprovalRequestId` brand pairing the two log-only audit events (`approval/asked` / `approval/decided`), and the `approval/request` waterfall the answerers listen on. It lives in the UI group because its purpose is human permission, while remaining channel-neutral: it depends only on Cordis and core vocabulary packages, never on a concrete UI. -The contract in one line: `ctx.approval.request(req)` puts exactly one question — "may this specific action proceed?" — to whatever answerers the deployment composed, and its decision phase always resolves to an outcome: an aborted signal yields `cancelled`, a throwing or missing answerer yields `unavailable`, and `allowed-once` is a grant for the single asked-about action, never a class of future ones. Acceptance is synchronous: the service reads the request fields and `agent.session` binding once, requires object agent/session identities, a string `toolName`, optional string `callId`/`reason`, and an AbortSignal-shaped live capability, then shallow-freezes a detached request record while preserving the exact `agent` and signal identities. A malformed request rejects before any audit append; later caller mutation cannot redirect scope, payload, cancellation, policy lookup, or either audit event. The other precondition is an open turn on the captured session — the audit pair is turn-enclosed by contract (the turn is the durable log's commit/replay boundary; a bare event between turns is crash-tail garbage on reload), so an idle ask also rejects before appending. Session observers run after an event enters the append-only log; if one throws, the service recognizes that the audit is already authoritative, contains the observer failure, and completes the pair. +The contract in one line: `ctx.approval.request(req)` puts exactly one question — "may this specific action proceed?" — to whatever answerers the deployment composed, and its answerer phase always produces an outcome: an aborted signal yields `cancelled`, a throwing or missing answerer yields `unavailable`, and `allowed-once` is a grant for the single asked-about action, never a class of future ones. Acceptance is synchronous: the service reads the request fields and `agent.session` binding once, requires object agent/session identities, a string `toolName`, optional string `callId`/`reason`, and an AbortSignal-shaped live capability, then shallow-freezes a detached request record while preserving the exact `agent` and signal identities. A malformed request rejects before any audit append; later caller mutation cannot redirect scope, payload, cancellation, policy lookup, or either audit event. The other precondition is an open turn on the captured session — the audit pair is turn-enclosed by contract (the turn is the durable log's commit/replay boundary; a bare event between turns is crash-tail garbage on reload), so an idle ask also rejects before appending. Either audit append may reject before commit because returning an unlogged decision would violate the pair. Session contains post-commit observer failures, so an authoritative audit append cannot reject the request or suppress its matching event. The service is the mechanism, answerers are the policy. Answerers are `approval/request` waterfall listeners occupying a single decision slot: answer for an agent you own by returning an outcome without calling `next()`, or delegate an agent you don't recognize by calling `next()` — the chain's built-in default is `unavailable`, so a deployment with no answerer (headless, CI) fails closed with zero configuration. Dispatch is keyed by `req.agent`: a listener registered through `agent.ctx` receives only that agent's questions, while a plain-context listener receives every agent's. Registration order across sibling plugins is not load-order deterministic; compose one terminal answerer per deployment and use `prepend` listeners only for decide-or-delegate gates. diff --git a/packages/ui/user-approval/src/index.ts b/packages/ui/user-approval/src/index.ts index 93ccd973c7..9b0347bb74 100644 --- a/packages/ui/user-approval/src/index.ts +++ b/packages/ui/user-approval/src/index.ts @@ -383,20 +383,23 @@ export class ApprovalService extends Service { * contract (the turn is the log's commit/replay boundary; an idle append * would be dropped as crash tail on reload) — and likewise throws before * appending anything when called idle; asking outside a turn is a deferred - * design. Once accepted it always resolves to an outcome, never rejects: an - * aborted signal yields `'cancelled'`, a missing or throwing answerer yields - * `'unavailable'` (fail closed), and a rogue non-vocabulary return value is - * normalized to `'unavailable'`. The caller-owned request is synchronously + * design. The answerer phase always produces an outcome: an aborted signal + * yields `'cancelled'`, a missing or throwing answerer yields `'unavailable'` + * (fail closed), and a rogue non-vocabulary return value is normalized to + * `'unavailable'`. A failure that prevents either audit append from committing + * still rejects; returning an unlogged decision would violate the audit pair. + * The caller-owned request is synchronously * snapshotted, so later mutation cannot split routing, dispatch payload, * cancellation, policy lookup, or the audit pair across agents/sessions. * Appends the * `approval/asked`/`approval/decided` audit pair (log-only) around the - * decision regardless of outcome. A synchronous session observer failure - * after an audit event entered the append-only log is contained; the event - * is already authoritative, so the pair still completes and the request - * still resolves. + * decision regardless of outcome. Session contains each post-commit observer + * failure, so an already authoritative audit event cannot make this request + * reject or suppress its matching event. * @param req - the pending decision (agent, tool identity, reason, signal). * @returns the closed outcome; `'allowed-once'` is the only grant. + * @throws when request acceptance fails, no turn is open, or either audit + * event fails before the session append commit point. */ async request(req: ApprovalRequest): Promise { // Accept one immutable request shape before the first async boundary. The @@ -476,47 +479,17 @@ export class ApprovalService extends Service { ) } const id = ApprovalRequestId(randomUUID()) - this.appendAudit(session, 'approval/asked', id, () => { - Reflect.apply(append, session, ['approval/asked', { - id, - toolName: accepted.toolName, - ...accepted.callId !== undefined ? { callId: accepted.callId } : {}, - ...accepted.reason !== undefined ? { reason: accepted.reason } : {}, - }]) - }) + Reflect.apply(append, session, ['approval/asked', { + id, + toolName: accepted.toolName, + ...accepted.callId !== undefined ? { callId: accepted.callId } : {}, + ...accepted.reason !== undefined ? { reason: accepted.reason } : {}, + }]) const outcome = await this.decide(accepted, session, acceptedSignal) - this.appendAudit(session, 'approval/decided', id, () => { - Reflect.apply(append, session, ['approval/decided', { id, outcome }]) - }) + Reflect.apply(append, session, ['approval/decided', { id, outcome }]) return outcome } - /** - * Append one audit event while distinguishing a post-append observer throw - * from a failure that prevented the event entering the log. `Session.append` - * pushes first and then notifies synchronously, so log growth proves the - * event is already authoritative; that observer failure is reported and - * contained so it cannot reject the approval or suppress its matching event. - * @param session - the captured session receiving both audit events. - * @param type - the audit event currently being appended. - * @param id - the request id, used to identify the contained failure. - * @param append - the single concrete `Session.append` call. - */ - private appendAudit( - session: Session, - type: 'approval/asked' | 'approval/decided', - id: ApprovalRequestId, - append: () => void, - ): void { - const length = session.events.length - try { - append() - } catch (error) { - if (session.events.length === length) throw error - this.ctx.logger.warn(`approval request "${id}": ${type} observer threw after the event was appended`) - } - } - /** * The session's effective policy: its own `approval/policy` fold, else the * configured default (the schema already defaulted an omitted policy to diff --git a/packages/ui/user-approval/tests/approval.spec.ts b/packages/ui/user-approval/tests/approval.spec.ts index 831b50111b..4d4b7aa67f 100644 --- a/packages/ui/user-approval/tests/approval.spec.ts +++ b/packages/ui/user-approval/tests/approval.spec.ts @@ -323,7 +323,7 @@ describe('ApprovalService.request', () => { const decided = session.events.find((event): event is SessionEvent<'approval/decided'> => event.type === 'approval/decided') expect(audit.map(event => event.type)).toEqual(['approval/asked', 'approval/decided']) expect(decided?.data.id).toBe(asked?.data.id) - expect(warn).toHaveBeenCalledWith(expect.stringContaining('approval/asked observer threw')) + expect(warn).toHaveBeenCalledWith(expect.stringContaining('session/event listener threw: Error: observer failed after asked append')) }) it('contains an approval/decided observer throw after append and still resolves', async () => { @@ -346,10 +346,10 @@ describe('ApprovalService.request', () => { const decided = session.events.find((event): event is SessionEvent<'approval/decided'> => event.type === 'approval/decided') expect(audit.map(event => event.type)).toEqual(['approval/asked', 'approval/decided']) expect(decided?.data).toMatchObject({ id: asked?.data.id, outcome: 'rejected' }) - expect(warn).toHaveBeenCalledWith(expect.stringContaining('approval/decided observer threw')) + expect(warn).toHaveBeenCalledWith(expect.stringContaining('session/event listener threw: Error: observer failed after decided append')) }) - it('does not misclassify a pre-append failure as an observer failure', async () => { + it('propagates an append failure that prevented audit log growth', async () => { const ctx = await mounted() const failure = new Error('append failed before log growth') const agent = { diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index 048ce58937..c36a50c244 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -253,6 +253,12 @@ const DYNAMIC_EVENT_DISPATCHERS: Array<{ event: string; pkg: string; method: str // and contains each listener directly rather than rebuilding via agentEvents. { event: 'agent/disposed', pkg: 'agent', method: 'events.dispatch' }, { event: 'session/created', pkg: 'session', method: 'events.dispatch' }, + // Session event callbacks are likewise resolved before the log push, then + // invoked individually after commit so observer failures are contained. + { event: 'session/event', pkg: 'session', method: 'events.dispatch' }, + // Flush resolves the scoped callback set directly so internal instrumentation + // cannot substitute the accepted session before parallel invocation. + { event: 'session/flush', pkg: 'session', method: 'events.dispatch' }, // Session disposal uses direct callback resolution so teardown contains each // synchronous throw and returned-promise rejection independently. { event: 'session/disposed', pkg: 'session', method: 'events.dispatch' }, @@ -278,6 +284,12 @@ const DYNAMIC_EVENT_DISPATCHERS: Array<{ event: string; pkg: string; method: str { event: 'workflow/end', pkg: 'workflow', method: 'events.dispatch' }, ] +const DYNAMIC_EVENT_LISTENERS: Array<{ event: string; pkg: string }> = [ + // The invariants oracle marks the session started from its global + // internal/dispatch listener before product session-start callbacks run. + { event: 'agent/session-start', pkg: 'invariants' }, +] + function generatedHeader(title: string): string[] { return [ ' pkg_brand pkg_session --> pkg_llm pkg_session --> pkg_scope + pkg_system_prompt --> pkg_llm + pkg_system_prompt --> pkg_scope pkg_fs --> pkg_brand pkg_fs --> pkg_llm pkg_web --> pkg_llm pkg_sandbox --> pkg_llm - pkg_system_prompt --> pkg_llm - pkg_system_prompt --> pkg_scope - pkg_system_prompt --> pkg_session + pkg_agent --> pkg_brand + pkg_agent --> pkg_llm + pkg_agent --> pkg_scope + pkg_agent --> pkg_session + pkg_agent --> pkg_system_prompt pkg_bash --> pkg_brand pkg_bash --> pkg_sandbox pkg_bash --> pkg_session @@ -146,26 +150,22 @@ flowchart TD pkg_llm_replay --> pkg_session pkg_sandbox_local --> pkg_llm pkg_sandbox_local --> pkg_sandbox - pkg_agent --> pkg_brand - pkg_agent --> pkg_llm - pkg_agent --> pkg_scope - pkg_agent --> pkg_session - pkg_agent --> pkg_system_prompt pkg_bash_local --> pkg_bash pkg_bash_local --> pkg_timeout + pkg_compact_basic --> pkg_agent + pkg_compact_basic --> pkg_compact + pkg_compact_basic --> pkg_llm + pkg_compact_basic --> pkg_session pkg_hook_protocol --> pkg_bash pkg_hook_protocol --> pkg_session pkg_session_persistence_jsonl --> pkg_session pkg_session_persistence_jsonl --> pkg_session_persistence pkg_session_persistence_sqlite --> pkg_session pkg_session_persistence_sqlite --> pkg_session_persistence - pkg_bash_sandbox --> pkg_bash - pkg_bash_sandbox --> pkg_bash_local - pkg_bash_sandbox --> pkg_sandbox - pkg_compact_basic --> pkg_agent - pkg_compact_basic --> pkg_compact - pkg_compact_basic --> pkg_llm - pkg_compact_basic --> pkg_session + pkg_invariants --> pkg_agent + pkg_invariants --> pkg_llm + pkg_invariants --> pkg_scope + pkg_invariants --> pkg_session pkg_user_approval --> pkg_agent pkg_user_approval --> pkg_brand pkg_user_approval --> pkg_llm @@ -184,6 +184,9 @@ flowchart TD pkg_tools --> pkg_session pkg_tools --> pkg_system_prompt pkg_tools --> pkg_user_approval + pkg_bash_sandbox --> pkg_bash + pkg_bash_sandbox --> pkg_bash_local + pkg_bash_sandbox --> pkg_sandbox pkg_agent_loop --> pkg_agent pkg_agent_loop --> pkg_llm pkg_agent_loop --> pkg_scope @@ -210,7 +213,6 @@ flowchart TD pkg_subagent --> pkg_agent pkg_subagent --> pkg_llm pkg_subagent --> pkg_scope - pkg_subagent --> pkg_session pkg_subagent --> pkg_tools pkg_tool_web --> pkg_llm pkg_tool_web --> pkg_system_prompt @@ -229,12 +231,6 @@ flowchart TD pkg_hooks_codex --> pkg_llm pkg_hooks_codex --> pkg_session pkg_hooks_codex --> pkg_tools - pkg_invariants --> pkg_agent - pkg_invariants --> pkg_llm - pkg_invariants --> pkg_scope - pkg_invariants --> pkg_session - pkg_invariants --> pkg_system_prompt - pkg_invariants --> pkg_tools pkg_acp --> pkg_agent pkg_acp --> pkg_bash pkg_acp --> pkg_llm @@ -333,10 +329,11 @@ flowchart TD | [`llm-deepseek`](../packages/llm/llm-deepseek) | `llm` | [`llm`](../packages/llm/llm) | | [`llm-pi-ai`](../packages/llm/llm-pi-ai) | `llm` | [`llm`](../packages/llm/llm) | | [`session`](../packages/core/session) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope) | +| [`system-prompt`](../packages/core/system-prompt) | `core` | [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope) | | [`fs`](../packages/fs/fs) | `fs` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | | [`web`](../packages/web/web) | `web` | [`llm`](../packages/llm/llm) | | [`sandbox`](../packages/sandbox/sandbox) | `sandbox` | [`llm`](../packages/llm/llm) | -| [`system-prompt`](../packages/core/system-prompt) | `core` | [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session) | +| [`agent`](../packages/core/agent) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`bash`](../packages/bash/bash) | `bash` | [`brand`](../packages/util/brand), [`sandbox`](../packages/sandbox/sandbox), [`session`](../packages/core/session) | | [`fs-local`](../packages/fs/fs-local) | `fs` | [`fs`](../packages/fs/fs) | | [`fs-policy`](../packages/fs/fs-policy) | `fs` | [`fs`](../packages/fs/fs) | @@ -349,28 +346,27 @@ flowchart TD | [`session-persistence`](../packages/session-persistence/session-persistence) | `session-persistence` | [`session`](../packages/core/session) | | [`llm-replay`](../packages/support/llm-replay) | `support` | [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`sandbox-local`](../packages/sandbox/sandbox-local) | `sandbox` | [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox) | -| [`agent`](../packages/core/agent) | `core` | [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`bash-local`](../packages/bash/bash-local) | `bash` | [`bash`](../packages/bash/bash), [`timeout`](../packages/util/timeout) | +| [`compact-basic`](../packages/compact/compact-basic) | `compact` | [`agent`](../packages/core/agent), [`compact`](../packages/compact/compact), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | | [`hook-protocol`](../packages/hooks/hook-protocol) | `hooks` | [`bash`](../packages/bash/bash), [`session`](../packages/core/session) | | [`session-persistence-jsonl`](../packages/session-persistence/session-persistence-jsonl) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | | [`session-persistence-sqlite`](../packages/session-persistence/session-persistence-sqlite) | `session-persistence` | [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence) | -| [`bash-sandbox`](../packages/bash/bash-sandbox) | `bash` | [`bash`](../packages/bash/bash), [`bash-local`](../packages/bash/bash-local), [`sandbox`](../packages/sandbox/sandbox) | -| [`compact-basic`](../packages/compact/compact-basic) | `compact` | [`agent`](../packages/core/agent), [`compact`](../packages/compact/compact), [`llm`](../packages/llm/llm), [`session`](../packages/core/session) | +| [`invariants`](../packages/support/invariants) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session) | | [`user-approval`](../packages/ui/user-approval) | `ui` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt) | | [`user-interaction`](../packages/ui/user-interaction) | `ui` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm) | | [`workflow`](../packages/workflow/workflow) | `workflow` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) | | [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`code-runtime`](../packages/code-runtime/code-runtime), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`user-approval`](../packages/ui/user-approval) | +| [`bash-sandbox`](../packages/bash/bash-sandbox) | `bash` | [`bash`](../packages/bash/bash), [`bash-local`](../packages/bash/bash-local), [`sandbox`](../packages/sandbox/sandbox) | | [`agent-loop`](../packages/core/agent-loop) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`user-approval`](../packages/ui/user-approval) | | [`tool-fs`](../packages/fs/tool-fs) | `fs` | [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`tool-skill`](../packages/skill/tool-skill) | `skill` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`skill`](../packages/skill/skill), [`tools`](../packages/core/tools) | -| [`subagent`](../packages/subagent/subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | +| [`subagent`](../packages/subagent/subagent) | `subagent` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`tools`](../packages/core/tools) | | [`tool-web`](../packages/web/tool-web) | `web` | [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`web`](../packages/web/web) | | [`timeout-policy`](../packages/timeout/timeout-policy) | `timeout` | [`llm`](../packages/llm/llm), [`timeout`](../packages/util/timeout), [`tools`](../packages/core/tools) | | [`tool-todo`](../packages/todo/tool-todo) | `todo` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | | [`tool-cordis`](../packages/cordis/tool-cordis) | `cordis` | [`scope`](../packages/core/scope), [`tools`](../packages/core/tools) | | [`hooks-codex`](../packages/hooks/hooks-codex) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`tools`](../packages/core/tools) | -| [`invariants`](../packages/support/invariants) | `support` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) | | [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools), [`user-approval`](../packages/ui/user-approval), [`user-interaction`](../packages/ui/user-interaction) | | [`tool-ask-user`](../packages/ui/tool-ask-user) | `ui` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) | | [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | `guard` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools) | diff --git a/docs/persistence-catalog.md b/docs/persistence-catalog.md index cb0e8ce0dc..245d25fa5f 100644 --- a/docs/persistence-catalog.md +++ b/docs/persistence-catalog.md @@ -23,7 +23,7 @@ An approval question was put to the answerer chain — log-only audit (like `hoo Types: [CallId](core-data-structures/core.md) -Source: [`packages/ui/user-approval/src/index.ts:86`](../packages/ui/user-approval/src/index.ts) +Source: [`packages/ui/user-approval/src/index.ts:84`](../packages/ui/user-approval/src/index.ts) #### `approval/decided` — log-only @@ -33,7 +33,7 @@ The outcome of a prior `approval/asked` (same `id`) — log-only audit. Exactly 'approval/decided': { id: ApprovalRequestId; outcome: ApprovalOutcome } ``` -Source: [`packages/ui/user-approval/src/index.ts:97`](../packages/ui/user-approval/src/index.ts) +Source: [`packages/ui/user-approval/src/index.ts:95`](../packages/ui/user-approval/src/index.ts) #### `approval/policy` — log-only @@ -43,7 +43,7 @@ The session's approval policy was switched — log-only, durable, replayable, ne 'approval/policy': { policy: ApprovalPolicy } ``` -Source: [`packages/ui/user-approval/src/index.ts:109`](../packages/ui/user-approval/src/index.ts) +Source: [`packages/ui/user-approval/src/index.ts:107`](../packages/ui/user-approval/src/index.ts) ### `assistant/*` @@ -57,7 +57,7 @@ Raw stream chunk — token-level replay fidelity. Types: [StreamChunk](core-data-structures/llm-streaming.md) -Source: [`packages/core/session/src/types.ts:317`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:322`](../packages/core/session/src/types.ts) #### `assistant/message` — surface @@ -69,7 +69,7 @@ Assembled assistant message for one step (derived history uses this). Carries th Types: [ContentBlock](core-data-structures/core.md) · [TokenUsage](core-data-structures/llm-streaming.md) -Source: [`packages/core/session/src/types.ts:324`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:329`](../packages/core/session/src/types.ts) ### `bash/*` @@ -129,7 +129,7 @@ In-session context injection (file-change notices, subdir AGENTS.md, skill conte Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:315`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:320`](../packages/core/session/src/types.ts) ### `hook/*` @@ -165,7 +165,7 @@ A queued prompt an `agent/prompt-submit` listener VETOED — the durable record Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:309`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:314`](../packages/core/session/src/types.ts) ### `request/*` @@ -177,7 +177,7 @@ Full snapshot of the EpochHeader the NEXT request is built under, with the Reque 'request/header': { header: EpochHeader; reason: RequestHeaderReason } ``` -Source: [`packages/core/session/src/types.ts:369`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:374`](../packages/core/session/src/types.ts) #### `request/header-delta` — log-only @@ -187,7 +187,7 @@ Amendment to the folded EpochHeader: at least one of a SystemDelta, a ToolsDelta 'request/header-delta': { system?: SystemDelta; tools?: ToolsDelta; config?: LlmCallConfig; messagePrefix?: Message[] } ``` -Source: [`packages/core/session/src/types.ts:386`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:391`](../packages/core/session/src/types.ts) ### `steering/*` @@ -201,7 +201,7 @@ Steering content injected between steps of a running turn. Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:342`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:347`](../packages/core/session/src/types.ts) ### `step/*` @@ -213,7 +213,7 @@ Closes step `step` of turn `turn`. 'step/end': { turn: number; step: number } ``` -Source: [`packages/core/session/src/types.ts:296`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:301`](../packages/core/session/src/types.ts) #### `step/start` — log-only @@ -223,7 +223,7 @@ Opens step `step` of turn `turn` — one model call plus the tool executions it 'step/start': { turn: number; step: number } ``` -Source: [`packages/core/session/src/types.ts:294`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:299`](../packages/core/session/src/types.ts) ### `todo/*` @@ -239,7 +239,7 @@ NOT a SurfaceEventType: it produces no LLM message and never reaches `deriveMess Types: [TodoItem](core-data-structures/session.md) -Source: [`packages/core/session/src/types.ts:356`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:361`](../packages/core/session/src/types.ts) ### `tool/*` @@ -253,7 +253,7 @@ The model requested one tool invocation: `name` with the raw `arguments` JSON st Types: [CallId](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:330`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:335`](../packages/core/session/src/types.ts) #### `tool/code-dispatch` — log-only @@ -277,7 +277,7 @@ A completed tool call's model-facing result, plus an optional tool-private `meta Types: [CallId](core-data-structures/core.md) · [ContentBlock](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:340`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:345`](../packages/core/session/src/types.ts) ### `turn/*` @@ -291,7 +291,7 @@ Closes turn `turn` with the TurnEndReason that ended it. The loop fires the awai Types: [TurnEndReason](core-data-structures/session.md) -Source: [`packages/core/session/src/types.ts:292`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:297`](../packages/core/session/src/types.ts) #### `turn/start` — log-only @@ -303,7 +303,7 @@ Opens turn `turn`. `trigger` records what started it — a drained message batch Types: [TurnTrigger](core-data-structures/session.md) -Source: [`packages/core/session/src/types.ts:286`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:291`](../packages/core/session/src/types.ts) ### `user/*` @@ -317,4 +317,4 @@ A user-visible prompt (queued message drained at turn start). Types: [ContentBlock](core-data-structures/core.md) · [MessageSource](core-data-structures/core.md) -Source: [`packages/core/session/src/types.ts:298`](../packages/core/session/src/types.ts) +Source: [`packages/core/session/src/types.ts:303`](../packages/core/session/src/types.ts) diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index 5e508344fa..1483401835 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -70,6 +70,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [The session prefix — request-only messages in front of the derived history](implemented/feature/2026-07-07-session-prefix.md) | 2026-07-07 | | [Repeat-tool-call guard plugin](implemented/feature/2026-07-08-repeat-tool-guard.md) | 2026-07-08 | | [The self-referential cordis toolset](implemented/feature/2026-07-08-self-referential-cordis-toolset.md) | 2026-07-08 | +| [Configure subagent persona, tool visibility, and depth](implemented/feature/2026-07-12-subagent-persona-tool-filter-and-depth.md) | 2026-07-12 | ### Simplification diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index 024eb05f82..76c40805f8 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -4,30 +4,28 @@ Status: implemented ## Problem -One application needs to share infrastructure across many agents while giving each agent a coherent local world. Model adapters, persistence, user interfaces, and most tool implementations belong to the deployment; personas, visible tools, live policy, event listeners, and cleanup often belong to one agent. +One application needs to share infrastructure across many agents while letting each agent have its own tools, prompt contributions, policies, and listeners. Shared adapters, persistence, and user interfaces belong to the deployment; a persona, tool variant, or listener often belongs to one agent. -A separate service graph per agent duplicates shared infrastructure. One global registration graph has the opposite failure: an agent-specific tool, prompt section, restriction, or listener can leak into unrelated agents. Contributors need one way to compose local behavior without learning a different registration API for every service. +A separate service graph per agent duplicates shared infrastructure. One global registration graph has the opposite failure: an agent-specific contribution can leak into unrelated agents. Contributors need one ordinary registration mechanism that determines both who can see a contribution and when it is cleaned up. -The mechanism also needs a clear lifetime. An agent must not become visible before its local registrations exist, and final loop work must not lose those registrations before it settles. Parent-owned subagents make both failures easy to trigger because several differently configured agents can exist concurrently inside one application. +The mechanism also needs a publication boundary. An agent must not become visible before its local world is complete, and teardown must retain that world until final work has stopped. ## Decision -Every live agent owns one flat registration layer through `agent.ctx`. Code registers through the context that owns the contribution; scope-aware services resolve deployment-global registrations plus exactly one matching agent layer; scoped events route by the operation's real agent; and the layer is published and revoked with the agent lifecycle. +Every live agent owns one flat registration layer exposed as `agent.ctx`. Code registers through the context that owns a contribution; scope-aware services combine deployment-global registrations with exactly one matching agent layer; operations choose that layer from their real agent; and the layer exists for the agent's complete published lifetime. -A Cordis **context** is the object through which code accesses services and registers owned effects. The [Cordis primer](../../../cordis-primer.md) explains the framework beyond that concept. +Cordis is the plugin framework underneath the SDK. A Cordis **context** is the object plugins use to access services and register effects whose cleanup follows that context. The [Cordis primer](../../../cordis-primer.md) explains the framework in more detail. -The contract has four parts: +For most contributors, the complete contract is four rules: -| Contributor question | Contract | +| Question | Rule | |---|---| -| Where do I register agent-local behavior? | Use the ordinary service API through `agent.ctx` | -| What does an agent see? | Deployment globals plus its own layer, with service-specific merge rules | -| Which scoped listeners run? | By default, unscoped listeners plus listeners for the operation's agent; an explicit global-listener exception is described below | -| How long does local behavior exist? | Assembled during unpublished setup, observable only after creation succeeds, and retained through quiescent teardown | +| Where do I register behavior for one agent? | Call the ordinary registration API through `agent.ctx` | +| What does an operation for an agent see? | Deployment globals plus that agent's layer, using the owning service's merge rules | +| Which scoped listeners run? | Unscoped listeners plus listeners registered for the operation's agent | +| How long does the layer exist? | Setup completes before publication; disposal keeps it until work reaches quiescence | -The scope is deliberately flat. Resolution never walks parent or sibling scopes. Parent ownership links lifetimes without importing registrations. - -For scope-aware registries and default listener routing, the whole mechanism can be read from left to right: the registering context chooses a layer, while the agent named by an operation chooses which one local layer joins the deployment-global layer. +The scope is flat. Resolution never walks parent or sibling scopes, and lifetime ownership does not imply registration inheritance. ```mermaid flowchart LR @@ -35,41 +33,32 @@ flowchart LR agentAContext["agentA.ctx
cleanup follows Agent A"] -->|"registers into"| agentALayer["Agent A layer"] agentBContext["agentB.ctx
cleanup follows Agent B"] -->|"registers into"| agentBLayer["Agent B layer"] - operationA["Operation for Agent A"] -->|"selects"| agentAView["Agent A view
eligible globals plus A local only"] + operationA["Operation for Agent A"] -->|"selects"| agentAView["Agent A view
globals plus A local"] globalLayer --> agentAView agentALayer --> agentAView - operationB["Operation for Agent B"] -->|"selects"| agentBView["Agent B view
eligible globals plus B local only"] + operationB["Operation for Agent B"] -->|"selects"| agentBView["Agent B view
globals plus B local"] globalLayer --> agentBView agentBLayer --> agentBView ``` -The missing cross-edges describe registry resolution and default listener routing: Agent A's registered values and ordinary scoped listeners do not enter Agent B's view, and a parent's layer does not enter a child's view merely because the parent owns the child's lifetime. For scope-filtered events, `{ global: true }` is the explicit opt-in exception; it can observe across scopes while cleanup still follows the registering agent. Registry-membership notifications are a separate unfiltered event class described below. +The missing cross-edges are the isolation rule: Agent A's local registrations do not enter Agent B's view, and a parent's registrations do not enter a child merely because the parent owns the child's lifetime. -The companion [runtime-design RFC](2026-07-12-agent-scope-runtime-design.md) explains how the implementation preserves this contract under Cordis dispatch, JavaScript mutation and reentrancy, asynchronous setup, rollback, and racing disposal. +The companion [runtime-design RFC](2026-07-12-agent-scope-runtime-design.md) explains the implementation and correctness reasoning. The [subagent composition-controls RFC](../feature/2026-07-12-subagent-persona-tool-filter-and-depth.md) owns the separate `persona`, `toolFilter`, and `maxDepth` feature. -### Registration origin selects visibility and cleanup +### Registration origin chooses visibility and cleanup -A contribution made through a plain plugin context is deployment-global and is disposed with that plugin. The same method called through `agent.ctx` contributes only to that agent and is disposed with the agent scope. +A registration made through a plain plugin context is deployment-global and is disposed with that plugin. The same method called through `agent.ctx` contributes to one agent and is disposed with that agent's scope. -| Registration origin | Registration layer and default audience | Disposed with | +| Registration origin | Default visibility | Disposed with | |---|---|---| -| Plain plugin context | Deployment-global; eligible for every agent view, subject to service merge and restriction rules | Registering plugin | -| `agent.ctx` | Agent-local; visible to that agent by default | Agent scope | +| Plain plugin context | Every eligible agent view | Registering plugin | +| `agent.ctx` | Exactly that agent's view | Agent scope | -This applies to tools, prompt sections and variables, restrictions, protections, guards, and scoped event listeners. Named scoped values ordinarily shadow same-named global values; an owning service may reserve a protected name and reject the shadow instead. Duplicate names within one layer fail. Event listeners have the explicit `{ global: true }` audience exception described below. +Tools, prompt sections and variables, tool restrictions, guards, and scoped event listeners adopt this contract. Named local values ordinarily shadow a same-named global value for that agent; each owning service documents exceptions and merge behavior. -The public pattern is ordinary registration inside `setup`: +The ordinary contributor pattern is to register the complete local world during agent setup: ```js -const reviewSummaryTool = { - name: 'review_summary', - description: 'Return the review summary.', - parameters: { type: 'object', properties: {} }, - async execute() { - return [{ type: 'text', text: 'review complete' }] - }, -} - const handle = await ctx.agents.create({ agentId: AgentId('reviewer'), sessionId: SessionId('reviewer-session'), @@ -80,130 +69,108 @@ const handle = await ctx.agents.create({ order: 0, text: 'Review code, but do not modify files.', }) - agentCtx.tools.restrict({ allow: ['read'] }) - agentCtx.tools.register(reviewSummaryTool) + agentCtx.tools.register({ + name: 'review_summary', + description: 'Return the review summary.', + parameters: { type: 'object', properties: {} }, + async execute() { + return [{ type: 'text', text: 'review complete' }] + }, + }) }, }) -const reviewer = handle.agent -ctx.tools.get('read', reviewer) // global and allowed -ctx.tools.get('bash', reviewer) // undefined: filtered global -ctx.tools.get('review_summary') // undefined: not global -ctx.tools.get('review_summary', reviewer) // reviewer-local +ctx.tools.get('review_summary') // undefined: not global +ctx.tools.get('review_summary', handle.agent) // the reviewer-local tool await handle.dispose() -ctx.tools.get('review_summary', reviewer) // undefined: scope is gone +ctx.tools.get('review_summary', handle.agent) // undefined: scope is gone ``` -### The operation selects the view +Setup receives a full trusted Cordis context so it can compose ordinary plugins and services. Its contract is composition-only: driving or publishing the in-flight agent through casts or internal registry calls is unsupported. -Registration origin and operation subject are separate facts. Calling a read method through `agent.ctx` does not implicitly select that agent; lookup, execution, prompt assembly, and event dispatch still receive the agent or scope they act for. +### The operation chooses the view -For example, `agent.ctx.systemPrompt.assemble()` without an assembly scope requests the global view. `ctx.tools.get(name, agent)` and `ctx.tools.execute({ ..., agent })` select that agent's tool view explicitly. This lets one shared service act for any agent without binding the service instance itself to one scope. +Registration origin and operation subject are separate facts. Calling a service through `agent.ctx` selects where a new registration belongs; it does not bind later reads to that agent. -`agent.ctx.agent` is the associated agent for setup code, but it is not a general scope-selection shortcut. Contributors creating nested generic scopes use the nearest scope tag as the registration key; inheriting an `agent` property does not import the outer registration layer. +Tool lookup and execution receive the agent they act for. Prompt assembly receives an assembly context for the agent whose request is being built. Event dispatch receives its domain subject. This keeps shared service instances reusable across agents while making each operation's view explicit. -### Scoped events follow the operation's real subject +Only services that adopt the scope contract resolve an agent layer. `agent.ctx` does not automatically change arbitrary Cordis service calls. -By default, an event about agent A reaches unscoped listeners and A-scoped listeners, not B-scoped listeners; agent-less dispatch reaches only unscoped listeners. Product helpers and service-owned paths couple the routing key to the value the operation already owns—such as `ToolExecution.agent`, `ApprovalRequest.agent`, the prompt assembly scope, or the session's captured owner. Advanced code that constructs a low-level carrier or assembly context directly must keep its subject and scope fields aligned; development invariants detect mismatches, but the low-level types do not make every mismatch unrepresentable. +### Scoped events keep routing separate from event data -Cordis listeners have one explicit exception. `{ global: true }` bypasses contextual filtering, so a listener registered through `agent.ctx` can observe other agents and subjectless dispatches while its cleanup still belongs to that agent scope. Use it only for deliberate cross-scope observation. +An event about Agent A normally reaches unscoped listeners and A-scoped listeners, not B-scoped listeners. An event without an agent subject reaches only unscoped listeners. -Registry-membership notifications remain unfiltered because they describe shared registry state rather than an operation for one agent. The generated [event catalog](../../../cordis-catalog/events.md) is the exhaustive reference for event signatures and modes. +At the Cordis level, `Scoped` is an opaque routing receiver. It carries the filter used to choose listeners but is not the domain object. Event signatures therefore keep the real `Agent`, tool execution, approval request, or other subject as an explicit argument that listeners can inspect. -### Creation publishes after setup; disposal revokes after work stops +A listener registered with `{ global: true }` deliberately bypasses contextual audience filtering while its cleanup still follows the registering context. Registry-membership notifications remain unfiltered because they describe shared registry state rather than one agent's operation. The generated [event catalog](../../../cordis-catalog/events.md) is the exhaustive event reference. -`ctx.agents.create()` and `resume()` construct an unpublished agent. Their optional `setup(agentCtx)` callback may await child-plugin activation and register the complete local world. During setup, neither the agent nor its session is visible in the public registries, and driving methods reject. +### Creation publishes last and disposal revokes last -The returned promise resolves only after setup, ordered lifecycle notification, and loop start succeed. Setup failure or owner loss rolls the unpublished world back and releases its IDs. A caller therefore never receives a handle to a partially configured agent. +`ctx.agents.create()` and `resume()` build an unpublished session, scope, agent, and driver. They await `setup`, admit the final session and agent entries, announce them in order, start the loop, and only then return a handle. -`AgentHandle.dispose()` performs the reverse boundary. It stops and drains the loop, preserves the session and scoped listeners through final events and flushes, detaches the agent and session, unwinds the scope, and releases IDs. Repeated or racing calls join the same completion promise. +An optional creation signal cancels work only while create or resume is pending. After the promise resolves, the returned `AgentHandle` owns explicit disposal. -The calling Cordis context and AgentLoop are structural co-owners. Unloading either disposes the agent, so creation through a short-lived plugin context intentionally gives the agent that shorter lifetime. +If loading, setup, admission, or publication fails, the private transaction rolls back everything it prepared. Concurrent operations using the same caller-supplied live ID may both reach setup, but final registry entry admits only one; every loser rejects and cleans its private resources. Sequential reuse after awaited disposal remains valid. -The lifecycle keeps the local layer private until setup succeeds and keeps it alive until final work has drained: +`AgentHandle.dispose()` reverses the boundary. It deactivates creation or driving, waits for synchronous publication to unwind, stops and drains the driver and final session flushes, detaches the agent and session, and finally disposes the scope. Repeated or racing disposal requests join one completion promise. + +The calling Cordis context and the concrete AgentLoop factory are structural co-owners. Unloading either disposes the transaction or live agent. ```mermaid flowchart TB - request["Create or resume"] --> reserve["Reserve agent and session IDs"] - reserve --> privateWorld["Load or build private session, scope, and driver"] - privateWorld --> setup["Await setup through agent.ctx"] - setup --> publish["Publish session and agent, then start the loop"] - publish --> live["Return the live handle"] + request["Create or resume"] --> privateWorld["Build private session, scope, agent, and driver"] + privateWorld --> setup["Await composition through agent.ctx"] + setup --> admission["Admit final session and agent entries"] + admission --> publish["Announce lifecycle and start the driver"] + publish --> live["Return AgentHandle"] - privateWorld -->|"load or preparation failure, or owner loss"| rollback["Rollback startup
no handle escapes"] - setup -->|"setup failure or owner loss"| rollback - publish -->|"publication failure or owner loss"| rollback - live -->|"handle disposal, owner unload, or AgentLoop unload"| settle["Quiesce prepared or running work"] - rollback --> settle - settle --> detach["Detach any published agent, then session"] - detach --> revoke["Dispose any created agent scope"] - revoke --> release["Release acquired IDs"] + privateWorld -->|"failure, cancellation, or owner loss"| rollback["Rollback private work"] + setup -->|"failure, cancellation, or owner loss"| rollback + admission -->|"duplicate or owner loss"| rollback + publish -->|"listener failure or owner loss"| rollback + live -->|"handle or owner disposal"| quiesce["Stop and drain work"] + rollback --> quiesce + quiesce --> detach["Detach agent, then session"] + detach --> revoke["Dispose the agent scope"] ``` -Contributors should put agent-local activation inside `setup` and always dispose the returned handle. Code that needs to observe a live agent waits for `create()`/`resume()` to resolve rather than polling the registries during setup. +### Subagent controls are an independent feature -## Tool restrictions resolve against a live flat view +In-process subagents consume agent scope by installing their local composition during unpublished setup. Their optional persona, live global-tool filter, and absolute depth cap are not intrinsic scope semantics; the [subagent composition-controls RFC](../feature/2026-07-12-subagent-persona-tool-filter-and-depth.md) defines those controls, provider capability checks, and dynamic tool behavior. -A tool restriction filters the live deployment-global end-capability layer, after which scope-local tools are added. `allow` retains named globals, `deny` removes named globals, multiple restrictions intersect, and a hidden global tool is absent from both registry presentation and executable lookup. +`inheritsParentContext` describes conversation-history seeding only. It says nothing about Cordis scope, injected services, tools, or authority. -Filter presence is explicit: omitting a filter installs no restriction, `restrict({})` rejects, and `allow: []` deliberately hides every global end capability. +## Security and authority are non-goals -Because globals are live, allow- and deny-lists intentionally differ when a new global tool appears: +Agent scopes compose trusted same-process registrations. They do not sandbox plugins, define a parent-to-child authority lattice, freeze grants at creation, or guarantee that a child can do no more than its parent. -```text -at time 0: - global tools = { read, bash } - deny { bash } view = { read } - allow { read } view = { read } +A parent may own a child whose visible tools are wider than its own because lifetime ownership does not donate or cap registrations. A plugin holding a Cordis context also runs in the same process and can call available services directly. -after registering global tool web: - deny { bash } view = { read, web } - allow { read } view = { read } -``` - -Scope-local tools are merged after the filter. A local tool can therefore exist even when it is absent from an allow-list over globals. This is composition behavior, not an authorization promise. - -Reserved Code Mode presentation is not part of the filterable end-capability layer. The [Code Mode RFC](../feature/2026-06-15-code-mode.md) owns the `run_code`, SDK, `toolOrder`, and presentation-versus-execution contracts; contributors changing Code Mode behavior follow that decision rather than inferring new authority semantics from agent scope. - -## Security and authority are explicit non-goals - -Agent scopes compose trusted in-process registrations. They do not sandbox plugins, define a parent-to-child authority lattice, freeze a creation-time grant set, or guarantee that a child can do no more than its parent. A plugin holding a Cordis context runs in the same process and can call the services injected into that context. - -A parent can own a child whose visible tool set is wider than its own. For example, a parent restricted to global `read` can spawn a child with no restriction; the child then sees later global tools plus its own local registrations. The parent owns the child's lifetime but does not donate or cap the child's registration layer. - -Deployments that need non-escalation require a separate authority representation, propagation rule, and execution check. Authority-versus-visibility ledgers, parent-subset grants, explicit future-grant APIs, and generic capability/output/termination tags are outside this decision. - -## Subagents use the same composition rule - -In-process subagents are a consumer of agent scope, not a second scoping model. A child gets a fresh flat layer during unpublished setup; its persona, tool filter, structured-output protocol, and listeners are ordinary registrations through the child's context. Parent teardown, backend teardown, and manual run disposal own the child lifetime without importing the parent's registrations. - -`inheritsParentContext` describes conversation-history seeding only, not Cordis scope, service injection, tools, or authority. The [subagent capability RFC](../feature/2026-06-21-subagent-capability-seam.md) owns run usage and the provider contract, while the [runtime-design RFC](2026-07-12-agent-scope-runtime-design.md) explains in-process structured output and workflow race handling. +Deployments that need non-escalation require a separate authority representation, propagation rule, and execution check. Parent-subset grants, creation-time authorization snapshots, explicit future-grant APIs, and generic capability/output/termination tags are outside this decision. ## Alternatives considered -The rejected architectures either separate visibility from cleanup, scope only behavior but not registered data, duplicate shared infrastructure, or conflate parent ownership with registration inheritance. +The rejected designs either separate visibility from cleanup, cover only one registration family, duplicate shared infrastructure, or conflate lifetime ownership with inheritance. ### Pass an agent option to every registration -An API such as `tools.register(definition, { agent })` leaves global registration as the leak-by-omission default and repeats scope plumbing in every registry. It can also express “visible to A, disposed with unrelated plugin B,” which registration through `agent.ctx` prevents. +An API such as `tools.register(definition, { agent })` repeats scope plumbing in every registry and permits visibility ownership to drift from cleanup ownership. Registering through `agent.ctx` makes both facts follow one Cordis effect owner. ### Filter events while keeping registries global -Listener filtering prevents a hook from intercepting the wrong agent but does not scope tool schemas, executable lookup, prompt sections, variables, or Code Mode bindings. Agent-local composition would still require temporary global mutation. +Listener filtering prevents the wrong hook from running but does not scope tool schemas, executable lookup, prompt sections, variables, or other registered data. Agent-local composition would still require temporary global mutation. -### Create one isolated service graph per agent +### Create one service graph per agent -Service isolation chooses one registry instance, while the desired view is deployment globals plus one agent layer. Per-agent graphs duplicate adapters and force shared persistence and UI infrastructure to discover every instance. Independent applications still deserve separate graphs; collaborating agents inside one deployment do not. +The required view is shared deployment services plus one local registration layer. Per-agent graphs duplicate adapters and complicate shared persistence, provider registries, and application boot. -### Inherit the parent's registrations into a child +### Inherit parent registration scopes -Hierarchical inheritance silently imports every parent-scoped tool and policy. Flat layers plus parent-owned disposal separate lifetime from composition: the parent owns the child without deciding the child's local world. This choice deliberately makes authorization a separate design. +Parentage describes lifetime and conversation lineage, not a universal merge policy. Hierarchical lookup makes unrelated services inherit accidentally and cannot define security without a separate authority model. ## Consequences -Contributors use the same registration methods at both deployment and agent scope; changing the calling context changes visibility and cleanup together. Model-visible tool lookup, execution, prompt assembly, policy, observation, and teardown agree on one agent key instead of maintaining parallel per-feature scope options. +Contributors use one familiar pattern: register shared behavior through a plugin context, register local behavior through `agent.ctx`, select the real agent on operations, and dispose the returned handle. Setup is atomic from an observer's perspective, and teardown preserves local behavior until work stops. -The cost is explicit subject selection on reads and dispatch, asynchronous programmatic creation, disciplined handle disposal, and awareness that flat registration scope is not authority. Registries retain service-specific merge behavior, and only services that adopt the scope contract become agent-scoped automatically. - -The decision applies to tools, prompt state, scoped events, session lifecycle and scoped session events, approvals, and in-process subagent composition. Filesystem policy, LLM interception, background backend state, and other registries retain their own subject or policy mechanisms until their designs explicitly adopt agent scope. +The cost is explicit subject selection, asynchronous programmatic creation, and service-specific scope adoption. Flat registration scope is intentionally not authority, and subagent composition controls remain a separate feature rather than hidden scope semantics. diff --git a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md index 35d1b50c16..786dce250e 100644 --- a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md +++ b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md @@ -4,999 +4,390 @@ Status: implemented ## Problem -The [agent-scope contract](2026-07-08-agent-scope-contexts.md) defines the contributor-visible result: registrations made through `agent.ctx` form one flat local layer, operations resolve that layer by their real agent, setup remains unpublished, and teardown preserves the layer until work stops. The implementation must make those claims true inside a cooperative plugin framework and mutable JavaScript runtime. +The [agent-scope contract](2026-07-08-agent-scope-contexts.md) is simple for contributors: register through `agent.ctx`, resolve one global-plus-agent view, publish only after setup, and retain the scope until work stops. The runtime must preserve that contract across a cooperative plugin framework, asynchronous creation, reentrant listeners, durable session commits, and worker or process failure. -Four failure classes interact in the paths this change hardens: +The main design risk is adding a second mechanism for every race. Separate reservations, readiness sentinels, cancellation relays, snapshot layers, and protection registries can mirror the same fact until no reader can tell which one is authoritative. That machinery also encourages the runtime to treat trusted typed calls as hostile serialization boundaries. -| Proof obligation | Failure if implemented locally or incompletely | -|---|---| -| Registration and dispatch select the same key | Prompt data resolves for one agent while behavior listeners run for another | -| Construction and teardown have continuous ownership | Reentrant unload publishes a partial world, leaks IDs, or revokes policy before final work | -| Covered validation and later use observe one accepted value | Stateful accessors or caller mutation make checked, executed, logged, and observed data disagree | -| Protocol invariants survive extensible middleware | Listener ordering removes required prompt state, re-allows denied work, commits a failed result, or forces another model step | - -Cordis already supplies derived contexts, effect ownership, receiver-based filtering, and waterfalls, but none alone establishes all four obligations. Context association is not a scope key, raw disposers are not await-idempotent, waterfall listeners can short-circuit or wrap each other, and JavaScript `readonly` types do not constrain runtime accessors. Async persistence, setup, publication callbacks, subagent providers, and worker messages add reentrancy and race boundaries around those primitives. +The implementation needs enough state to preserve real ownership and settlement boundaries, but no more. A correctness reviewer must be able to follow one fact from acceptance through publication and teardown without reconciling parallel representations. ## Decision -The runtime implements agent scope as four coupled mechanisms rather than one generic framework feature: +The runtime uses one mechanism per independent fact. Scope routing has an opaque carrier; each live registry object has one entry record; each create or resume operation has one transaction; typed same-process calls borrow readonly values; real data boundaries materialize once; and worker/process code retains separate terminal and quiescence state only where different owners can genuinely race. -| Mechanism | Implementation decision | +The design can be skimmed as seven choices: + +| Problem | Authoritative mechanism | |---|---| -| Layer and routing | A scope key tags registration effects; scope-aware contribution registries merge globals plus one layer; dispatch carriers filter listeners by the operation subject | -| Transactional lifetime | Scope, session, registry entry, driver, reservations, caller ownership, and AgentLoop ownership publish and unwind as one ordered transaction | -| Boundary ownership | The hardened acceptance-sensitive paths listed below capture caller fields once and retain stable identities or owner-controlled representations | -| Owner-final policy | Four narrow service-owned boundaries restore named prompt state, deny monotonically, observe final results, and stop terminal turns | +| Select global plus one agent's registrations | Opaque scope key and routing carrier | +| Own one live agent or session | One registry entry captured by its disposer | +| Coordinate create/resume | One `AgentCreationTransaction` | +| Protect durable, queued, model, or wire data | Materialize once at that boundary | +| Pass typed values inside one process | Readonly borrowed contract | +| Preserve an owner's final prompt/tool policy | Contribution-owned finality and one final observer point | +| Coordinate subagent, worker, and process shutdown | One cancellation signal plus the independent terminal/quiescence facts of that boundary | -The same mechanisms carry into in-process subagents and the workflow bridge. Subagents are the composition proof because child setup, structured output, readiness, cancellation, result settlement, and disposal exercise all four obligations concurrently. +The rest of this RFC expands those choices in dependency order. It first explains the Cordis mechanics, then scope routing, creation and session commit, tools and prompts, subagents and workflows, and finally the checks that make the reasoning executable. -This RFC owns the implementation rationale, algorithms, race handling, and correctness enforcement. The [agent-scope contract](2026-07-08-agent-scope-contexts.md) owns contributor-facing behavior, tool-filter semantics, usage examples, and the security non-goal; this document links to that contract rather than redefining authority or public scope inheritance. +The [July 8 RFC](2026-07-08-agent-scope-contexts.md) remains the contributor contract. The separate [subagent composition-controls RFC](../feature/2026-07-12-subagent-persona-tool-filter-and-depth.md) owns `persona`, `toolFilter`, and `maxDepth`; this document discusses only how their setup fits the lifecycle. -## Implementation model: domain terms and Cordis mechanics +## Cordis model: context, fiber, effect, receiver, and waterfall -Readers need four domain terms and four Cordis mechanics to follow the implementation. Readers already familiar with this codebase and Cordis can skim this section. +Five Cordis ideas are required to understand the implementation. A context selects services and registration ownership; a fiber is one live plugin or child lifecycle; an effect attaches cleanup to a fiber; an event receiver selects listeners; and a waterfall lets listeners transform or veto an operation in sequence. -### Recurring domain terms +### A context is an ownership path through one service graph -Four domain terms keep the rest of the RFC compact. A **Session** is an agent run's append-only event log, from which model history and durable replay are derived. **Lossless JSON** is the JSON subset that can be copied without changing meaning: primitives, dense arrays, and plain objects; cycles, sparse arrays, exotic prototypes, non-finite numbers, negative zero, `undefined`, `bigint`, functions, and symbols are rejected. An **end capability** is an actual callable tool implementation, whether the model sees it as a native schema or a Code Mode binding. **Code Mode** gives the model a generated SDK and a reserved `run_code` transport. Pure `code` presentation replaces native advertisement with that interface; `both` presentation retains native schemas alongside it. +All agents share one Cordis service graph. A derived context does not clone `ToolRegistry`, `SystemPrompt`, persistence, or model adapters; it changes how registrations made through that context are tagged and which effects own their cleanup. -### Four Cordis mechanics +`agent.ctx` is such a derived context. Service calls still reach the shared instances, while a registration can inspect its calling context and store a contribution under the nearest scope key. Ordinary plugin contexts carry no scope key and therefore register globally. -Contexts select service access and registration origin, fibers own effects, waterfalls provide cooperative transformation, and dispatch receivers select listeners. +### Fibers and effects make cleanup structural -| Cordis concept | Meaning in this RFC | -|---|---| -| Context | The object through which a plugin reaches services and registers contributions; a derived context can carry a different registration scope | -| Fiber and effect | The runtime owner and one owned piece of setup/cleanup; disposing the fiber unwinds its effects | -| Waterfall | Ordered around-middleware whose listener calls `next()` to include downstream work and may transform or short-circuit the result | -| Dispatch receiver | The `this` object used by Cordis listener filtering; a scope carrier encodes the operation's agent key | +A Cordis fiber is the live instance created when a plugin or child context is activated. Its state records whether that lifecycle is active, unloading, failed, or disposed. `ctx.effect()` and `ctx.on()` return disposers and also attach those disposers to the registering fiber, so unloading a plugin or agent scope removes everything registered through that context without a separate inventory. -#### Context selects both service access and registration origin +The vendored Cordis fiber implementation establishes ownership before arbitrary setup or `internal/plugin` observers run. A reentrant unload can see the child fiber or effect that has started, reject effects added after unload begins, and join cleanup already started through a public single-shot disposer. Teardown observers are contained individually so one callback cannot prevent structural cleanup. -A Cordis `Context` is the object through which code calls services such as `ctx.tools`, `ctx.systemPrompt`, and `ctx.sessions`. A service can recover the context through which it was accessed, so the same method can register globally from a plain plugin context or locally from `agent.ctx` without adding an `agent` option to every registration API. Cordis implements contextual service access with a **traced receiver**: a proxy that carries the accessing context while forwarding calls to the concrete service object. +These are framework lifecycle guarantees rather than agent-specific policy. Agent creation depends on them because setup can activate arbitrary plugins and synchronously reenter owner disposal. -```js -ctx.tools.register(globalTool) -agent.ctx.tools.register(agentOnlyTool) +### Receivers route listeners; waterfalls compose decisions -ctx.on('tools/result', globalObserver) -agent.ctx.on('tools/result', agentObserver) -``` +Cordis filters listeners using the dispatch receiver (`this`), while harness listeners need an explicit agent, execution, request, or other subject. `Scoped` marks the receiver expected by a scoped event declaration, but the runtime carrier deliberately exposes no subject API. -A context also exposes the dependency view injected into the plugin that minted it. `agent.ctx` therefore carries the agent loop's deliberate service surface; it is not an ambient root context or a security boundary. +Product helpers therefore construct the carrier and pass the domain subject separately. This prevents listener routing from becoming an alternate object model and keeps event signatures understandable without knowledge of carrier internals. -#### Effects make cleanup follow ownership +A Cordis waterfall is middleware-style dispatch. Each listener receives `next()`: calling it delegates to the remaining listeners and base operation, while returning without it vetoes or replaces the downstream result. Waterfalls power prompt assembly and tool policy; ordinary emit events notify synchronously, and parallel events await all listeners without a veto result. -An effect is setup whose cleanup belongs to a fiber. Tool registration, prompt contribution, event subscription, and an agent scope are effects, so normal disposal, failure, and hot module reload all follow the same ownership graph. +## Scope routing: one opaque key selects one layer -```js -ctx.effect(() => { - const resource = openResource() - return async () => { - await resource.close() - } -}) -``` +The scope package implements the smallest object needed for Cordis routing. Its carrier holds only a composed service filter and scope predicate, while the package records the opaque key privately and exposes the scope fiber's quiescent disposer separately. -Cordis also supports generator effects that nest child effects in a chosen teardown order. The lifecycle section explains why construction must become owner-visible before arbitrary callbacks run. +### Scope identity uses object identity -#### Waterfalls remain cooperative extension points +A `ScopeKey` is an opaque object compared by identity. The harness uses the live `Agent` as its own key, but the primitive is domain-neutral and supports other scoped owners. -A waterfall listener wraps downstream work. Calling `next()` includes the remaining listeners and base implementation; returning directly skips that downstream portion. +`createScope(parent, key)` returns a scope whose `ctx` shares the parent's services and whose effects are tagged with that key. `scopeOf(ctx)` reads the nearest registration key. `scopeTarget(base, key)` creates the event receiver whose filter preserves the base receiver's Cordis service filter, then admits unscoped listeners and listeners with that exact key. -```js -ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { - const downstream = await next() - return { - ...downstream, - sections: [...downstream.sections, extraSection], - } -}) +The receiver is a small carrier rather than a transparent proxy for the domain object. Code that needs the agent receives the explicit event argument; code that needs registration ownership receives `agent.ctx`. -ctx.on('system-prompt/assemble', async () => replacementAssembly) -// The direct return skips this listener's downstream/base. An outer listener -// that already awaited next() still resumes around replacementAssembly. -``` +### Registry reads overlay one exact map -This flexibility is intentional for ordinary policy, but it cannot express a fact that must remain true after every wrapper and short-circuit. [Owner-final policy](#owner-final-policy-four-narrow-boundaries) adds only the four final checkpoints that need stronger semantics. +Scope-aware registries store global contributions separately from identity-keyed local contributions. A read resolves the global layer and at most one local layer; it never traverses parentage. -#### Dispatch receivers select scoped listeners +Each service retains its domain rule. Named prompt values and tools use local shadowing, tool restrictions filter globals before local tools are added, and events select listener audiences rather than registered data. Scope supplies identity and ownership, not a universal merge algorithm. -Cordis filters listeners using the dispatch receiver, the object visible as `this` inside a function-style listener. `dsh-scope` builds a receiver carrying the operation's scope key, allowing global listeners plus listeners registered for that exact key while rejecting other agents' listeners. +### Fused dispatch helpers prevent subject drift -The receiver is live coordination state, not durable session data. For example, `tools/result` is a live final-outcome notification, while `tool/result` is an append-only session event used for replay and model history. +`agentEvents(context, agent)` constructs the agent's carrier and injects the same agent as the event subject. Session, tool, approval, prompt, and subagent services likewise derive routing from the object they already own instead of accepting an unrelated key. -## Registration and delivery: global plus exactly one agent layer +The type marker rejects ordinary bare-receiver mistakes, and development invariants cover direct JavaScript or casted dispatch. The subject remains explicit because routing correctness and useful event data are different concerns. -Within services that adopt the agent-scope contract, one scope key controls both registered data and registered behavior. Contribution reads combine the deployment-global layer with exactly one agent layer, while scoped event dispatch admits global listeners plus the listeners for that same agent. +## Agent creation: one transaction owns the complete operation -Scope keys are opaque objects compared by identity; a live `Agent` is its own registration key. There is no name-based equality or parent traversal. +Create and resume are one asynchronous lifecycle with several phases, not several lifecycles. `AgentCreationTransaction` owns caller and factory liveness, optional cancellation, private resources, publication, rollback, and the memoized teardown observed by every owner. -### Scope mechanism: context, key, and lifetime +### Registry entries are the only live identity records -The registration context selects the layer, the scope primitive binds that layer to cleanup, and the nearest scope tag—not an inherited convenience property—selects the key. +AgentRegistry and SessionStore each keep one entry per live object. The entry holds the stable ID, object, scoped carrier, and the small amount of publication or append state that belongs to that object. -#### The calling context selects visibility and cleanup +A detach closure captures its exact entry. It deletes only when the map still points to that entry, so an old disposer cannot delete a later object that reuses the same ID. No registry rereads a mutable caller object to decide identity. -A scope-aware registry method recovers the Cordis context through which its service receiver was accessed and calls `scopeOf(context)` once while installing the registration effect. An absent key selects the global store; a key selects the per-scope store. Cleanup closes over that accepted store and key, so later context mutation or a same-named replacement cannot redirect disposal. Event listeners follow a different Cordis path: `ctx.on()` retains the registering context, and targeted dispatch reads its scope while filtering listeners; `{ global: true }` deliberately bypasses that audience filter without changing cleanup ownership. +There is no reservation API. Caller-supplied IDs are admitted at final entry. Concurrent same-ID operations may both complete private setup; exactly one final `enter()` succeeds, and every loser rolls its private resources back. Sequential reuse is valid after the earlier disposer reaches quiescence. -The [public contract](2026-07-08-agent-scope-contexts.md#registration-origin-selects-visibility-and-cleanup) owns the visibility table, shadowing rule, and `{ global: true }` listener exception. Internally, registry resolution overlays one exact identity-keyed map on the global map and never traverses an ancestry relation: +### The transaction owns preparation before awaiting it -```text -resolveLayer(agentA): - visible = copy(global registrations) - visible.overlay(registrations from agentA.ctx) - return visible -``` +The transaction is installed under both the calling Cordis context and the concrete AgentLoop factory before persistence load or setup can suspend. It also observes an optional create/resume signal until the public operation settles. -The one-overlay algorithm is why the generic primitive needs only opaque identity and effect ownership; parent/child meaning stays outside `dsh-scope`. +Create prepares a new Session. Resume loads and validates the persisted Session before preparing the same live session identity. Both paths then build the scope, agent, and driver and invoke the same setup/publication algorithm. -#### The scope primitive keeps layer and owner together +The factory stores concrete trace targets but invokes them through a caller-bound Cordis trace. This preserves dependency origin and caller ownership without stacking trace proxies. -`dsh-scope` exposes only the operations needed to mint a tagged ownership layer, read its key, target dispatch, and reach quiescent cleanup. For ordinary scope-aware registries, using a separate `{ scope }` option could express “stored in A's layer, disposed with B”; registration through the scoped context makes that mismatch unrepresentable. The `{ global: true }` listener option is an intentional audience exception, and the low-level `scopeTarget(base, key)` primitive still relies on its service-owned caller to supply matching facts. +### Setup is trusted composition inside a private world -| Operation | Responsibility | -|---|---| -| `createScope(context, key)` | Mount an ownership fiber and return its tagged context | -| `scopeOf(context)` | Read the nearest inherited scope key | -| `scopeTarget(base, key)` | Build a scope-filtered dispatch receiver around the existing base receiver | -| `Scope.dispose()` | Return one shared idempotent promise that reaches cleanup quiescence | -| `Scope.rawDispose` | Expose the exact Cordis disposer for ordered generator composition | +Setup receives the full child context and may await plugin activation. It can register tools, prompt sections, restrictions, listeners, and other effects, but the public contract does not support driving or publishing the in-flight agent through casts or internal registry calls. -`Scope.dispose()` and `rawDispose` serve different callers. Cordis raw disposers are single-shot, so a repeated raw call need not wait for an earlier asynchronous teardown; the public method follows the backing fiber's in-flight cleanup and gives racing callers the same completion promise. Generator lifecycles use `rawDispose` because Cordis recognizes nested ownership by exact disposer identity. +The transaction races asynchronous load and setup against deactivation rather than waiting forever for a promise owned by external code. If cancellation or owner unload wins, public creation rejects after transaction-owned cleanup even when the external promise never settles. -The primitive has one essential shape: +### Publication has one ordered commit path -```text -createScope(parentContext, key): - fiber = mount no-op plugin under parentContext - scopedContext = derive fiber.context with nearest-scope-tag = key +Publication admits and announces resources in the order required by observers: - rawDispose = fiber's exact disposer - dispose = memoized operation that: - invoke rawDispose if teardown has not started - follow fiber's in-flight cleanup until quiescent +1. Enter the session. +2. Enter the agent. +3. Announce `session/created`. +4. Announce `agent/created`. +5. Enable public driving. +6. Emit `agent/session-start`. +7. Start the driver. - return { ctx: scopedContext, rawDispose, dispose } -``` +The agent never drives before both registries and creation notifications agree. A synchronous listener may veto or dispose an owner; the transaction records publication in progress and waits for that callback stack to unwind before teardown continues. Every creation announcement that begins has a matching disposal announcement during rollback. -Derived contexts inherit the nearest tag. Mounting a plugin under `agent.ctx` preserves the agent scope; deliberately creating another scope replaces the tag below it. - -#### `ctx.agent` is an association; `scopeOf()` selects the layer - -`agent.ctx.agent` gives setup code convenient access to the associated agent, but the nearest scope tag remains authoritative for resolution. A nested scope can inherit the ergonomic `agent` property while replacing the registration key. - -```js -const auditKey = {} -const auditScope = createScope(agent.ctx, auditKey) - -auditScope.ctx.agent === agent // true: inherited association -scopeOf(auditScope.ctx) === auditKey // true: nearest registration key - -await auditScope.dispose() -``` - -This separation keeps the generic scope package independent of the agent package. - -### Resolution contracts preserve domain semantics - -The shared scope selects two layers, but each registry retains its own merge rules and must keep presentation, lookup, and execution coherent within the view it owns. - -#### Registries retain domain-specific merge rules - -The shared primitive answers “which layer?” and “who owns cleanup?”; each service still defines how its values combine. Prompt sections, variables, and tools use scoped-over-global shadowing by name. Tool-schema providers are additive. Tool lookup and execution receive an agent or scope explicitly, while prompt assembly receives an `AssembleContext` whose `scope` selects the layer. - -Calling a read method through `agent.ctx` does not silently choose an agent subject. For example, `agent.ctx.systemPrompt.assemble()` without an assembly scope still requests the global view. Registration origin and operation subject remain explicit, allowing one shared service to act for any agent. - -#### The tool view is live and executable - -`ToolRegistry` owns one resolver rather than separate presentation and execution stores. It snapshots restriction definitions at registration, applies them to the current global map, overlays the matching scoped map, and derives lookup, dispatch, schemas, SDK bindings, timeouts, inspection, and UI presentation from that resolved map. A filtered global implementation therefore cannot remain executable through a second path. - -The [public RFC](2026-07-08-agent-scope-contexts.md#tool-restrictions-resolve-against-a-live-flat-view) owns the exact allow/deny/future-global/local-overlay behavior. The internal distinction needed here is that `ToolRegistry.knownNames()` validates restrictions against the pre-restriction end-capability universe, while the system-prompt provider validates `toolOrder` against the presentation mode's wire universe. - -Final prompt assembly can include schemas from other `systemPrompt.tools()` providers or assembly listeners. The coherent-view proof therefore covers `ToolRegistry`'s own schemas, bindings, lookup, execution, and presentation; another provider owns coherence for the unrelated schemas it contributes. - -Reserved `run_code` presentation sits outside both registration maps. The [Code Mode RFC](../feature/2026-06-15-code-mode.md) owns its mode, SDK, and `toolOrder` semantics; this design relies only on the fact that the transport is resolved separately from filterable end capabilities. - -### Dispatch contract follows the operation subject - -Service-owned dispatch paths derive or couple the scope key with the operation subject, and a carrier composes that key with the chosen base receiver's existing dispatch behavior. For agent events the agent is both base and operation subject; tool, approval, and prompt dispatch instead wrap their owning service while selecting listeners with the operation's agent key. The low-level primitives can still represent mismatched facts, so helper use and development invariants—rather than the type system alone—protect direct internal callers. - -#### The operation subject selects the listener set - -The [public dispatch rule](2026-07-08-agent-scope-contexts.md#scoped-events-follow-the-operations-real-subject) and generated [event catalog](../../../cordis-catalog/events.md) own listener visibility and the exhaustive event-family mapping. The implementation problem is to prevent each service from choosing its carrier, subject argument, and scope key independently. - -Fused helpers keep values that must agree together. `agentEvents(context, agent)` uses one agent as the subject, scope key, and first event argument. `assembleContextFor(agent)` sets both prompt facts and the scope selector. The session store captures its carrier when a session enters because later appends and flushes may occur without the original agent context. - -#### The carrier preserves base-receiver behavior - -Function-style listeners receive the carrier as `this`. Agent listeners may call methods on the agent base; service listeners rely on the owning service's contextual receiver behavior. The carrier is therefore a proxy that selects listeners while reading, writing, and invoking through the real base receiver. - -The implementation uses a dedicated surrogate proxy target with an immutable composed-filter slot. It combines the base receiver's existing `Context.filter` with the scope predicate instead of replacing it. Methods bind to the real base; callable carriers preserve call and construct shape; descriptor queries normalize configurable flags as required by Proxy invariants; and definitions through the carrier require an explicitly configurable descriptor. Stable built-in references protect the composed filter from accidental `.call` replacement. - -Those mechanics preserve observable JavaScript behavior, including private-field method identity: - -```js -class Base { - #count = 0 - increment() { this.#count += 1 } -} - -const base = new Base() -const key = {} -new Proxy(base, {}).increment() // TypeError: proxy lacks Base's private identity - -const carrier = scopeTarget(base, key) -carrier.increment() // works: method is bound to base -carrier === base // false: carrier has distinct identity -``` - -Together these constraints keep listener selection correct while preserving the base-receiver behavior listeners expect. - -The TypeScript-only `Scoped` marker requires a carrier at typed dispatch sites. Runtime marks and development invariants cover JavaScript, casts, and direct Cordis dispatch; they detect routing mistakes but do not confine hostile same-process code. - -## Lifecycle: compose privately, publish once, tear down in reverse - -Scope, session, registry entry, and driver form one transaction with two owners. Request fields are captured first; AgentLoop tracking and both identity reservations precede asynchronous work; the caller owns the prepared lifecycle before setup; publication proceeds in synchronous observable phases; and every teardown path reaches one reverse-order quiescence boundary. - -Two services split the public API from the implementation. `AgentRegistry`, reached as `ctx.agents`, stores live agents and is the front door for `create()` and `resume()`. Its registered `AgentFactory` is concretely implemented by `AgentLoop`, which constructs and drives agents using its own injected dependencies. The rest of this section calls that concrete co-owner the **AgentLoop factory**. - -| Phase | Public state | Ownership fact | -|---|---|---| -| Reserve | IDs unavailable to competitors | AgentLoop tracking and exact reservations cover the next await | -| Prepare or load | Persistence data is loading, or session, scope, and driver exist privately | Resume's load sentinel covers persistence; the complete caller lifecycle covers setup | -| Setup | `setup(agent.ctx)` may await and register | Neither ID is published | -| Publish and start | Session, agent, and lifecycle notifications appear in order | Liveness is checked between observable phases | -| Dispose | Driver drains, registries detach, scope unwinds, IDs release | All owner paths join one completion promise | - -The [public lifecycle contract](2026-07-08-agent-scope-contexts.md#creation-publishes-after-setup-disposal-revokes-after-work-stops) defines what callers observe. The following sections justify each ownership and ordering fact behind that contract. - -### Reservations precede awaiting; lifecycle ownership precedes setup - -AgentLoop tracking and exact identity reservations precede the first await. Resume adds a caller sentinel across persistence loading; create and resume both establish the complete caller-owned lifecycle before invoking setup. - -#### The prepared lifecycle is owned before setup callbacks - -The caller context owns the work it requested and receives the consumer-facing `AgentHandle`. The AgentLoop factory is a structural co-owner because a live agent continues to depend on its injected services. Either owner can deactivate the transaction; both converge on the same lifecycle disposer. - -| Owner mechanism | Covers | Retires when | -|---|---|---| -| Caller lifecycle sentinel | Caller-fiber loss from lifecycle preparation through live lifecycle | Shared lifecycle reaches quiescence | -| Resume load sentinel | Caller-fiber loss across persistence load and lifecycle handoff | Load rollback or the adopted lifecycle reaches quiescence | -| AgentLoop tracker | AgentLoop unload and structural dependency loss | Transaction and lifecycle settle | -| ID reservations | Competing agent/session insertion | Ordered teardown releases both IDs | - -A **sentinel** is an owner-visible effect that follows work whose final disposer is not yet available. It adopts the exact reservation disposers immediately, then follows the complete lifecycle disposer once preparation establishes it. - -Cordis must make construction owner-visible before setup can reenter teardown. An effect's cleanup wrapper enters its owner list before its setup body runs, a child fiber receives its parent-owned disposer before Cordis's child-plugin notification (`internal/plugin`) announces it, and a fiber already unloading rejects new effects after taking its cleanup snapshot. Teardown observers are contained independently so one callback cannot starve peers or interrupt cleanup. These are domain-neutral lifecycle rules; `dsh-scope` uses them by mounting a no-op plugin fiber as the ownership bucket for one scope. - -#### Caller ownership and factory dependency lookup stay separate - -Factory delegation carries two contexts because ownership and dependency origin are different facts. `ownerCtx` is the caller-bound context whose fiber and optional scope own the requested lifecycle. The factory method receiver is the accepted factory traced through that access so the concrete service retains its own injected dependency view. - -```text -callerCtx.agents.create(options) - ownerCtx = context carrying callerCtx's fiber and scope - factoryThis = concrete accepted factory traced through ownerCtx - Reflect.apply(capturedCreateAgent, factoryThis, [ownerCtx, options]) -``` - -`setFactory()` captures the concrete target and its `createAgent` and `resume` callbacks once. It canonicalizes an already traced service before retracing, avoiding a second proxy layer that would break raw-identity state. Plain factory objects receive the explicit `ownerCtx` without depending on Cordis tracing. - -#### Create and resume reserve identities before awaiting - -Programmatic create and resume reserve both agent and session IDs before any operation can await. Create prepares a new or seeded session; resume loads persisted data while a caller sentinel and AgentLoop load tracker already own the interval in which no `Agent` object exists. - -Reservations are capabilities, not advisory sets. Setup code cannot reserve, prepare, create, register, or enter a substitute under the same IDs. A session reservation prepares at most one exact object, and publication requires the matching factory-held capabilities. A failed or abandoned transaction therefore cannot publish a substitute or wedge an ID indefinitely. - -Resume transfers ownership rather than opening a gap: - -```text -resume(ownerCtx, request): - snapshot request identity, options, and setup callback - reserve agentId and sessionId - install caller sentinel adopting both reservation disposers - track load under AgentLoop - - persisted = await firstOf(persistence.load(sessionId), deactivated) - session = sessionReservation.prepare(reconstruct persisted data) - starting = startOwned(ownerCtx, session, reservations, setup) - caller sentinel follows starting.dispose - return await starting.result -``` - -If deactivation wins, a backend load may still settle internally but has no path back to publication. Preparation failure still returns a rollback-backed lifecycle result, so both owners can wait for actual cleanup instead of mistaking a rejected async result for successful installation. - -### Setup composes an unpublished world - -`setup(agentCtx)` may register tools, prompt state, restrictions, listeners, protections, or child plugins and may await their activation. The new agent is available as `agentCtx.agent`, but neither agent nor session is visible in its global registry. - -The complete rollback skeleton exists before setup runs. If setup throws, rejects, or loses either owner, the scope and prepared resources unwind and the IDs become reusable. After setup settles, a microtask checkpoint and liveness checks let a same-turn owner unload win before publication. - -Setup composes but cannot drive. `send`, `steer`, `inject`, and `cancel` reject until publication reaches the session-start boundary. The driver lock and inbox use runtime-private state, and only factory-held controls enable and start the loop; JavaScript casts cannot call a public start method or write directly into the queue. - -```text -startOwned(ownerCtx, snapshot, preparedSession): - world = prepareLifecycleWithCompleteRollback(ownerCtx, snapshot, preparedSession) - - result = async: - require world active - await firstOf(runOptionalSetup(snapshot.setup, world.agent.ctx), world.deactivated) - await oneMicrotask() - require caller, factory, owner fiber, and owner agent still active - world.publish(snapshot.source) - return handle(world.agent, world.dispose) - - on any error: - await world.dispose() - rethrow -``` - -### Publication is ordered, observable, and rollback-covered - -Publication is one synchronous sequence with liveness checks between three observable notification phases. Both registry entries exist before the first listener runs, but driving stays locked until immediately before `agent/session-start`. - -1. Enter the session store and capture its scope carrier. -2. Enter the agent registry without announcing it. -3. Recheck caller and factory liveness. -4. Emit `session/created`. -5. Recheck liveness. -6. Emit `agent/created`. -7. Recheck liveness. -8. Enable driving. -9. Emit `agent/session-start`. -10. Recheck liveness. -11. Start the driver. - -```text -publish(world): - world.beginSynchronousPublication() - try: - world.detachSession = sessions.enter(world.session, sessionReservation) - world.detachAgent = agents.enter(world.agent, agentReservation) - require callerAndFactoryActive - sessions.announce(world.session) - require callerAndFactoryActive - agents.announce(world.agent) - require callerAndFactoryActive - world.driver.enableDrivingVerbs() - emitNonVetoing(agent/session-start) - require callerAndFactoryActive - world.driver.start() - finally: - world.endSynchronousPublication() -``` - -#### Creation is paired, not atomic - -Observers run between publication steps, so the sequence is not described as atomic. Effects already performed by an earlier listener cannot be retracted if a later listener throws. Instead, each registry marks a creation announcement as begun before dispatch and emits exactly one matching disposal edge during rollback. An entered object that was never announced has no disposal notification because no observer was told it existed. - -A detach requested during `session/created` or `agent/created` is deferred until that dispatch unwinds. Stable captured carriers and exact-object guards prevent a later listener from observing `disposed` before `created` or a stale detach from deleting a replacement with the same ID. The outer publication barrier likewise prevents caller or AgentLoop teardown from removing the other registry entry or unwinding `agent.ctx` while an announcement remains on the stack. - -Creation listener synchronous throws remain vetoes. Returned promise rejections are observed and logged but not awaited: publication has no asynchronous gap in which such a result could roll back safely. Disposal notifications and `agent/session-start` are non-vetoing and independently contain both synchronous throws and returned-promise rejections so one listener cannot block cleanup or later observers. - -### Teardown stops work before revoking registrations - -Every owner path reaches one memoized reverse-order transaction. It marks the lifecycle inactive, waits for an in-progress synchronous publication phase, stops the driver through actual exit and final durability work, detaches the agent and session, unwinds the scope, and releases IDs last. - -Final turn events, the turn-ending flush, and any outstanding session flush started while the agent was idle therefore run while the session and scoped listeners still exist. `agent/disposed` observes an already quiescent and unregistered concrete agent while its session remains live; `session/disposed` follows after event feed detachment and store removal. Both use the stable carrier captured for their matching creation edge. - -```text -disposeOwnedAgent(world): - mark world inactive - await world.synchronousPublicationIfRunning() - await world.stopDriver() # loop exit plus agent-started flushes - world.detachAgent() - world.detachSession() - await world.scope.dispose() - world.releaseSessionReservation() - world.releaseAgentReservation() -``` - -`AgentHandle.dispose()` gives repeated and racing consumers the same completion promise. The lifecycle-long caller sentinel follows that promise even when handle disposal wins first, while the AgentLoop ledger independently stops new transactions and waits for every structurally dependent agent before the service disappears. - -AgentLoop co-ownership follows dependency shape, not a blanket “creator owns every returned value” rule. An AgentLoop-created agent continues to depend on the loop's services, so AgentLoop unload stops it. - -## Boundary ownership: hardened paths accept once and own the accepted value - -The acceptance-sensitive paths enumerated below read caller-owned fields once and retain only owner-controlled identities or snapshots before crossing asynchronous, reentrant, model-visible, or durable-log code. This is a boundary-by-boundary implementation property, not a blanket claim about every public API. The protection is independent of TypeScript: `readonly` annotations vanish at runtime, and JavaScript accessors can return a different value on every read. - -The shared shape distinguishes identity-bearing references from data. Agent objects and abort signals are retained by identity after one read. Boundaries whose contract requires lossless JSON—such as session events and subagent payloads—validate and materialize it in one traversal; other boundaries use their own owned representation, such as `structuredClone` for agent options. Scalars and callbacks are captured once, then each boundary applies the validation promised by its API before downstream use. - -```text -accept(input): - read every relevant top-level field exactly once - retain identity-bearing references without rereading them - validate acceptance-time fields from those captures - copy or pin data in the representation owned by this boundary - bind accepted callbacks once when method receiver state is intentional - expose only owner-controlled identities, frozen records, or detached results -``` - -Capture does not imply uniform eager callback type-checking. Agent `setup` is captured once and any invocation failure enters rollback; a tool guard is likewise captured, and an invalid cast becomes a normalized execution error. The invariant is that later work never rereads caller fields to choose a different value. - -| Boundary | Identity retained | Data detached or pinned | -|---|---|---| -| Tool and `SubagentProvider` registration | Original callback receiver | Name, flags, schemas, scalar config | -| Agent create/resume | Caller context, setup callback | IDs, options, session metadata and seed | -| Agent send/steer | None | Content blocks and resolved message source | -| Approval request | Agent and abort signal | Tool name, call ID, and reason | -| Tool execution | Agent, signal, registry-minted parent token | Call identity and arguments | -| Session append/load | Session identity | Header and event envelopes | -| Subagent start/result | Parent and signal | Prompt, filters, schema, options, result | - -Before agent setup can run, the concrete agent pins its accepted ID, options, and session and binds `ctx` once. Registry detach closures likewise close over their accepted keys instead of rereading mutable public fields. - -`send()` and running `steer()` resolve the message source once and materialize `{ content, source }` as one detached, deeply frozen lossless-JSON record before `agent/queued` or inbox insertion. The notification and FIFO share that accepted content and source; its metadata wrapper is frozen separately, so neither retained caller references nor an earlier notification listener can rewrite what a later listener, the session log, or the model sees. Invalid content or source throws synchronously without notification, enqueue, or loop wakeup; idle `steer()` delegates to the same `send()` boundary. The later `agent/prompt-submit` waterfall can still replace a queued prompt by returning new content; ownership forbids in-place mutation, not the explicit rewrite protocol. - -The inbox path makes that accepted-value boundary concrete. Getter evaluation happens during materialization, so liveness is rechecked before the accepted record crosses into an inbox FIFO: +The sequence diagram isolates the non-obvious race: a synchronous creation listener can request disposal while the publication call stack still owns both registry entries. Teardown must deactivate immediately but wait for that stack to unwind before stopping and detaching anything. ```mermaid -flowchart TB - callerInput["Caller-owned content and source"] --> initialCheck["Require a live, drive-enabled agent"] - initialCheck --> accept["Resolve source once; materialize and deep-freeze one record"] - accept -->|"invalid lossless JSON"| invalidReject["Throw synchronously; no inbox insertion, agent/queued, or loop wakeup"] - accept -->|"accepted"| liveness["Recheck disposal after caller getters"] - liveness -->|"disposed reentrantly"| disposedReject["Throw disposed; do not insert or announce the message"] - liveness -->|"still live"| inbox["Insert the record into the queued or steering FIFO"] - inbox -->|"same frozen content and source"| queued["Emit agent/queued with a frozen metadata wrapper"] - inbox -->|"if later drained, read the same owned record"| drain["Loop-owned delivery"] - inbox -->|"cancel before drain"| cancelled["Clear the pending record without delivery"] - inbox -->|"disposal wins before drain"| disposed["Stop delivery; the disposed agent may retain the pending record"] - drain -->|"queued prompt"| prompt["agent/prompt-submit may block or explicitly replace"] - drain -->|"steering consumed by an active turn"| steering["Append steering/message"] +sequenceDiagram + participant Tx as AgentCreationTransaction + participant Registries + participant Listener as Synchronous listener + participant Driver + + Tx->>Tx: mark publication in progress + Tx->>Registries: announce agent/created + Registries->>Listener: invoke inside the same call stack + Listener->>Tx: dispose reentrantly + Tx->>Tx: deactivate, teardown waits for publication + Tx-->>Listener: disposal request accepted + Listener-->>Registries: return + Registries-->>Tx: announcement unwound + Tx->>Tx: resolve publication settlement + Tx->>Driver: stop and drain + Tx->>Registries: detach agent, then session + Tx->>Tx: dispose scope and resolve teardown ``` -A stateful getter shows why validation and ownership must use the same capture: +### Teardown preserves work before revoking registrations -```js -let reads = 0 -const input = { - get name() { - reads += 1 - return reads === 1 ? 'safe_tool' : 'different_tool' - }, -} +Every teardown request joins one memoized path. The order is: -// Wrong: validation and storage observe different values. -validateName(input.name) -storeName(input.name) +1. Deactivate creation or driving and let synchronous publication finish. +2. Stop and drain the driver, including idle injection flushes. +3. Detach the agent. +4. Detach the session. +5. Dispose the agent scope. +6. Retire transaction ownership tracking. -// Right: one accepted value drives both. -reads = 0 -const acceptedName = input.name -validateName(acceptedName) -storeName(acceptedName) -``` +This order lets final agent and session events use the matching scoped listeners and keeps persistence observers attached through the final flush. Scope disposal comes last because registration revocation is the externally visible lifetime boundary. -### Registered definitions are frozen snapshots +## Session append: materialize, validate, commit, notify -Tool registration creates the stored definition identity once; changes occur through explicit unregister/register effects rather than mutation of a caller-retained object. Parameters are materialized in one traversal, callbacks bind once to the accepted definition receiver, and the stored record is deep-frozen. +Session events cross a durable boundary, so append owns their data. The rest of the algorithm uses one attached entry and one commit point. -The first-party `defineTool()` helper applies the same boundary before registration. It captures each option once, materializes the authoring `SchemaSpec`, and derives both the wire schema and later execution/presentation validation from that owned spec. +### Durable data is materialized once -```text -defineTool(options): - accepted = read each option exactly once - parameterSpec = snapshotLosslessJson(accepted.parameters) - wireSchema = snapshotLosslessJson(convertToJsonSchema(parameterSpec)) - build execute and presentation validation over parameterSpec +Session headers, seeds, and appended events are lossless JSON data. The Session constructor or append path materializes and validates them before storage and exposes frozen snapshots, so later caller mutation cannot change persistence, replay, or model reconstruction. -registerTool(context, definition): - accepted = read each definition field exactly once - stored = deepFreeze({ - accepted name, description, timeout, - parameters: snapshotLosslessJson(accepted.parameters), - execute: bind accepted.execute to definition, - presentation callbacks: bind accepted callbacks when present - }) - layerFor(scopeOf(context)).add(stored.name, stored) -``` +This is a real ownership boundary: the values leave the caller, may be persisted, and must reconstruct the same request later. It is intentionally stricter than a typed same-process callback or registry definition. -`get()` and `visible()` return the frozen stored definitions; `schemas()` returns detached projections. Replacing `definition.execute` after registration has no effect, while a callback can deliberately read live state from its closure or original receiver. +### Pre-commit listeners can veto; post-commit observers cannot -Factory and backend registration use different reentrancy orderings around the same ownership rule. `AgentFactory` registration claims its single slot before reading callback accessors. `SubagentProvider` registration first snapshots the provider fields, then its effect checks and enters the accepted name. Both capture callback identity and intentional receiver state once, and hot-reload cleanup closes over the accepted slot or key instead of rereading a mutable public property. +Append follows one sequence: -### Durable session ownership carries the scope key +1. Materialize the durable event and surface intent. +2. Claim the SessionEntry and reject reentrant append on that entry. +3. Resolve scoped callbacks and run internal invariant validation. +4. Push exactly once; this is the commit point. +5. Notify each observer independently, containing synchronous and asynchronous failures. +6. Release append state and honor a detach requested during publication. -The [session-immutability RFC](2026-06-11-dev-invariants-over-deep-readonly.md#session-owns-immutable-history) owns header, event, and snapshot semantics. Agent-scope correctness adds one requirement: the store keeps append publication, accepted registry IDs, and captured scope carriers in private owner state rather than caller-writable fields. Outside JavaScript therefore cannot rename a stored session or redirect later `session/event` delivery by mutating visible state. +No observer error makes a committed event look uncommitted, and one bad listener cannot starve later listeners. Session invariants stage their transition before commit and apply it only when the same event reaches the contained post-commit observer. -An entered session treats append as one synchronous acceptance-and-publication boundary: +`flush()` starts every persistence listener and awaits every result before reporting failure. This deliberate all-settled behavior prevents a synchronous failure from starving another backend or final flush. -1. Capture the current store attachment and its private attachment epoch, keep the attachment live, then materialize and deep-freeze the caller's event data. -2. Reject if caller getters changed either value; the epoch catches even a transient attach-then-detach that restores the original hook lookup. The event must not become live without the store hooks that accepted it. -3. Resolve the exact scoped `session/event` callback list before commit. Cordis runs `internal/dispatch` during this step, so development invariants can still reject a bad candidate while the log is unchanged. Resolution uses a throwaway mutable argument array; replacing its accepted session or event rejects before commit, and product callbacks later receive a fresh fixed tuple. -4. Push the event into the log. This is the commit point. -5. Invoke the captured callbacks with per-listener containment and best-effort non-throwing failure reporting, then release the attachment barrier and honor any detach requested during acceptance or publication. +## Trust boundaries: copy only when ownership actually changes -The boundary rejects a reentrant `append()` until the outer callback list drains. Without that guard, an early observer could append event N+1 before a later persistence observer had received event N, reversing delivery relative to the log. Detach is deferred for the same interval, so no event can commit after `session/disposed` or lose its publication hooks. Once the push occurs, synchronous observer throws and returned-promise rejections are logged and contained rather than escaping as a false append failure or starving later observers. +The runtime distinguishes typed in-process contracts from serialization and durability boundaries. This is the main simplification rule for values and callbacks. -`SessionStore.flush()` uses the same pre-dispatch fixed-tuple check but remains an awaited durability barrier rather than an observe-only publication. It starts every captured listener synchronously, converts a synchronous throw into that listener's rejected result so later listeners still start, waits for every result to settle, and only then rejects with the first failed listener in registration order. One broken backend therefore cannot make the caller return while another backend is still flushing. - -Approval requests follow the same async boundary at smaller scale: one capture preserves exact agent/signal identities, copies scalar fields, captures the session once, and drives `approval/asked`, scoped policy, cancellation, and `approval/decided` from that record. - -### Tool execution has pipeline-owned identity - -The [interception-seams RFC](../feature/2026-06-30-interception-seams.md) owns the public tool-pipeline contract. For agent-scope correctness, `ctx.tools.execute(input)` must turn caller-owned input into one pipeline-owned `ToolExecution` before any scoped policy or dispatch runs. It first reads `callId` and `name` once and requires strings; a failure there rejects because even an error result would lack trustworthy correlation identity. Once those strings are accepted, later input failures can become normal final error outcomes. - -Arguments are materialized once and deep-frozen. The registry assigns a frozen property-free `ToolExecutionToken`; callers cannot choose it. `token`, `callId`, `name`, `arguments`, `agent`, and optional opaque `parent` token become non-writable and non-configurable before policy. `signal` is the only operational field an around-dispatch wrapper may replace or remove. - -```text -prepareExecution(input): - callId = read input.callId exactly once - name = read input.name exactly once - require both are strings - - accepted = read arguments, agent, parent, and signal exactly once - require parent is absent or a registry-minted token - arguments = deepFreeze(snapshotLosslessJson(accepted.arguments)) - - execution = { - token: new frozen property-free object, - callId, name, arguments, - agent: accepted.agent, - parent: accepted.parent, - signal: accepted.signal - } - protect every field except signal - return execution -``` - -Stable execution identity prevents middleware from changing which tool or scope policy accepted. It also gives structured-output commit a safe `WeakMap` key when an adapter reuses a string call ID. Code Mode correlates an SDK sub-call with its enclosing `run_code` using only the outer execution's opaque token, never a mutable reference to the live outer object. - -Result boundaries apply the same ownership rule. Each transform returns data that is captured field-by-field, validated, materialized, and ultimately deep-frozen for final observers; malformed outcomes normalize to JSON-safe error results rather than reaching the session log as apparent success. - -## Owner-final policy: four narrow boundaries - -Waterfalls remain the ordinary extension mechanism; each of four protocol invariants runs after the last extension point capable of violating that specific invariant. Each owner-final API has the weakest one-way power that can preserve its guarantee. - -Here **canonical** means the named registry or tool-schema-provider output assembled before the waterfall—not “all output the service approves.” Protection restores only the names its owner declares. - -| Invariant | Cooperative extension point | Owner-final boundary | Guarantee | -|---|---|---|---| -| Named prompt/tool contribution | `system-prompt/assemble` waterfall | `systemPrompt.protect()` finalization | Canonical presence, absence, definition, and local anchor survive | -| Non-overridable tool denial | `tools/pre-execute` allow/deny/ask waterfall | Synchronous `tools.guard()` | A denial cannot become allow | -| Authoritative live outcome | Execute and post-execute waterfalls | Awaited `tools/result` notification | Observers receive one immutable final result | -| Terminal protocol completion | Continuation waterfall and pending steering | Serial `agent/turn-stop` | No middleware or late steering creates another step | - -### Prompt protection restores named canonical contributions - -`systemPrompt.protect({ sections, tools })` snapshots the requested names and restores their canonical registry or tool-schema-provider output after the complete assembly waterfall. Global and matching scoped protections compose by set union; a waterfall failure still fails assembly rather than triggering recovery. - -Protection covers both presence and absence. If the canonical assembly omits a protected name, finalization removes a listener-fabricated entry; this is how Code Mode keeps a native schema absent while preserving the SDK/transport form. Tool providers likewise expose one captured coherent record for schemas and optional known names, so a stateful getter cannot validate one name and display another. - -#### Global section protection reserves its name - -A globally protected section name cannot be shadowed by a scoped section. Scoped registration under an already protected name fails, and adding protection fails if a scoped shadow already exists. This check occurs before assembly because scoped-over-global merge would otherwise make the shadow itself appear canonical. - -Tool-schema protection does not create a blanket reservation for unrelated schema names. Providers are additive and may deliberately contribute other executable schemas; the owner-final guarantee covers only the named canonical contribution. - -#### Restoration preserves a useful local anchor - -Protection does not reset the whole assembly. It removes protected names from the waterfall result and reinserts each canonical entry before the first surviving later unprotected canonical neighbor, or at the end if none survives. Unprotected entries retain the order and definitions chosen by middleware. - -```text -assemble(context): - assembly = assemble registries for context.scope - canonical = snapshot protected section/tool inputs - transformed = await systemPromptAssembleWaterfall(assembly) - - for each protected canonical name: - remove every transformed entry with that name - if canonical includes the name: - insert before first surviving later canonical neighbor, else append - - return transformed -``` - -Code Mode globally protects `tools:sdk` and reserved `run_code`; structured output adds scoped protection for its instruction and capture schema. - -### Tool guards deny monotonically - -`ctx.tools.guard()` installs a global or scoped synchronous check after the complete `tools/pre-execute` waterfall and before dispatch. A guard returns a denial reason or `undefined`; it has no allow result. - -Pre-execute hooks still compose ordinary allow, deny, and ask decisions. An ask resolves through the optional approval service, where only `allowed-once` becomes allow and absence or any non-grant becomes deny. Guards run afterward, so listener order cannot convert their denial into dispatched work. - -```js -agent.ctx.on( - 'tools/pre-execute', - async () => ({ kind: 'allow' }), - { prepend: true }, -) - -agent.ctx.tools.guard(execution => - execution.name === 'bash' - ? 'reviewer agents are read-only' - : undefined, -) -``` - -Even a later prepended allow listener cannot bypass the guard. A denied call still becomes an error outcome that flows through result transformation and final observation. - -### `tools/result` observes the final live outcome - -For a successfully prepared execution, the live pipeline is `tools/pre-execute` → guards → `tools/execute` → `tools/post-execute` → `tools/result`. Malformed non-identity input instead takes the error-shell path directly to final observation, as the algorithm below shows. The first, execute, and post stages are transformable waterfalls; `tools/result` is an awaited observe-only notification after every transform and outer error normalization. - -Every observer receives the same frozen execution and a separate deep-frozen snapshot of the owned result returned to the caller. Listener failures are contained independently, so they cannot change that returned result or starve peers. Routing uses `execution.agent`. - -`tools/result` is not the durable `tool/result` session event. The live notification also fires for direct programmatic executions and is the source of truth for in-process commit logic. The agent loop later appends the durable event for replay, UI reconstruction, and model history. - -```text -execute(input): - accept trustworthy callId and name - try to prepare pipeline-owned execution - on preparation failure: - create an identity-bearing error shell - ownedResult = owned error result - freeze execution - observerResult = deepFreeze(snapshotLosslessJson(ownedResult)) - await every tools/result observer independently with observerResult - return ownedResult - - gate = await tools/pre-execute(execution) - resolve ask through approval when needed - denial = policy denial or first guard denial - - if denied: - result = errorResult(denial) - else: - result = await tools/execute(execution, dispatchRegisteredTool) - - result = await tools/post-execute(execution, result) - ownedResult = normalize into owned lossless JSON - freeze execution - observerResult = deepFreeze(snapshotLosslessJson(ownedResult)) - await every tools/result observer independently with observerResult - return ownedResult -``` - -Waterfalls transform only at their named stages; guards only deny; final observers only observe. - -### `agent/turn-stop` makes continuation terminal - -Steering is input for another model step inside the current turn; queued prompts wait for a future turn. Ordinary continuation remains extensible: the loop computes a default, runs `agent/turn-continuation`, records any force-continue reason as steering, and treats pending steering as a reason to continue. - -The scoped serial `agent/turn-stop` checkpoint runs after that folding. A listener returns `{ action: 'stop' }` or abstains with `undefined`; malformed values and throws close the current turn with an error. A stop is terminal, so later listeners and steering cannot restore continuation. - -The loop uses `strictSerial` because ordinary Cordis serial dispatch treats `null` and `false` as abstentions. This terminal protocol permits only `undefined` to abstain, making accidental return values fail closed. - -Terminal state remains active through `turn/end` and the durability flush. Steering added by continuation, turn-close, or flush listeners is discarded after a terminal stop, while the ordinary queued-prompt FIFO remains untouched. - -```text -afterSuccessfulStep(turn): - decision = await agent/turn-continuation(defaultDecision) - record decision.reason as steering when present - if steering is pending: decision = continue - - terminal = await strictSerial(agent/turn-stop) - if terminal == stop: - discard steering - terminalStopped = true - decision = stop - - append turn/end - await session/flush - - if terminalStopped: - discard steering added by turn/end or flush listeners - else: - move leftover steering to the next-turn queue -``` - -This stronger control is reserved for terminal protocols such as a completed structured child; ordinary continuation policy remains cooperative. - -## Subagents: the composition proof - -In-process subagents add no second scoping model. They create a fresh flat child scope during unpublished setup, install ordinary scoped persona/filter/protocol registrations, own the child through a run handle, and use the same owner-final checkpoints for structured output. - -The roles and phases are explicit: - -| Role | Responsibility | +| Boundary | Ownership rule | |---|---| -| Caller | Supplies parent, prompt, optional child configuration, and eventual disposal | -| `SubagentService` | Validates capabilities, owns the public wrapper, normalizes result and lifecycle telemetry | -| `SubagentProvider` backend | Chooses transport and creates one run | -| In-process driver | Owns child creation, setup, prompt drive, result read, cancellation, and teardown | -| Child `Agent` | Uses the ordinary agent lifecycle and its fresh `agent.ctx` | +| Typed service/plugin call in the same process | Borrow readonly values and callbacks | +| Parsed plugin configuration or external file | Validate semantic and structural input | +| Queued inbox message | Materialize before asynchronous consumption | +| Model/tool JSON input or output | Materialize at the model/tool boundary | +| Durable session or persistence data | Materialize and validate before commit | +| Worker, process, or wire message | Serialize, validate, and own the decoded value | -```text -recommended caller order: start -> await run.started -> await run.result -> await run.dispose() -internal observation: started and result may settle in either order; lifecycle publication waits for started -ownership: dispose may race any phase and joins one cleanup promise -``` +Tests that fabricate hostile getters, replace typed callbacks after handoff, or cast fake service objects do not define a production contract by themselves. The runtime keeps checks where data crosses a parser, queue, model, durable, file, worker, process, or wire boundary and relies on readonly types plus plugin discipline inside the trusted process. -The [agent-scope contract](2026-07-08-agent-scope-contexts.md#subagents-use-the-same-composition-rule) gives the contributor-facing example, and the [subagent capability RFC](../feature/2026-06-21-subagent-capability-seam.md) owns the public `SubagentRun` contract. This section follows only the in-process ownership and terminal-protocol implementation. +Callback containment is separate from data ownership. Listeners are arbitrary extension code and can throw even when their arguments are trusted; publication and post-commit paths still contain failures according to their event contract. -### The child world uses ordinary registrations +## Tools and prompts: one view, one execution identity, explicit finality -A child persona is a scoped `deployment:persona` section. Its tool filter is a scoped restriction over the live global tool layer. Structured output is a bundle of scoped tool, prompt, protection, guard, and listener registrations. +Tool presentation and execution share one private resolver, while prompt/tool owners declare the few contributions that cooperative middleware may not alter finally. No second registry mirrors ownership. -```js -let structured -const setup = childCtx => { - if (persona !== undefined) { - childCtx.systemPrompt.section({ - name: 'deployment:persona', - order: 0, - text: persona, - }) - } - if (toolFilter !== undefined) childCtx.tools.restrict(toolFilter) - if (schema !== undefined) { - structured = attachStructuredRuntime(childCtx, schema) - } -} -``` +### One resolver defines the tool view -The driver creates one run-owner fiber under `parent.ctx` and calls the child factory through it. Parent teardown, `spawn` backend teardown, and manual run disposal reach the same node, but the child still receives a new registration key. Lifetime inheritance therefore does not imply registration inheritance. +The private resolver applies the current presentation mode, live global restrictions, exact local overlay, and local shadowing. Schemas, lookup, execution, Code Mode SDK generation, restriction validation, and owner-final name derivation all use that resolver or its pre-restriction global-name view. -### Structured output is a child-owned terminal protocol +The [subagent composition-controls RFC](../feature/2026-07-12-subagent-persona-tool-filter-and-depth.md#tool-filtering-is-one-live-global-view-rule) owns the user-visible allow/deny semantics. The implementation requirement is agreement: a filtered-away global cannot remain executable through a different lookup path, and a locally shadowed definition is the same definition presented and executed. -A structured child registers a real-schema `structured_output` tool and instruction in its own scope. Concurrent children can use different schemas without a global placeholder, reference count, or remove-for-everyone pass. +`ToolRestriction` accepts readonly allow/deny names and compiles them into internal sets. Multiple restrictions intersect. Public `visible()` and `knownNames()` methods are unnecessary because only the registry needs the intermediate views. -The [Code Mode RFC](../feature/2026-06-15-code-mode.md) owns advertised wire routes and SDK behavior. The correctness distinction here is execution nesting: a native capture has one tool execution, while an SDK capture is an inner execution whose parent token identifies the enclosing `run_code`. Tool mode is presentation rather than an execution allowlist, so a direct unadvertised capture still follows the native commit path; a deployment that forbids that route uses an execution guard. +### Tool execution owns identity and boundary materialization -Named protection restores this child's canonical capture contribution and instruction without erasing unrelated schemas deliberately added by another assembly provider. +The registry assigns every execution a fresh branded `Symbol` token. Nested Code Mode calls carry the outer token as `parent`, so structured output can correlate an inner capture with its enclosing `run_code` result by identity. -#### Native calls commit once; Code Mode SDK calls commit twice +A fresh registry-assigned Symbol provides collision-free execution identity without a WeakSet membership registry. Callers cannot supply the execution's own token through `ToolExecutionInput`; they only receive the pipeline-owned `ToolExecution` after the registry creates it. This is a trusted typed contract, not a runtime defense against arbitrary casts or JavaScript callers. -The capture body validates and stages a cloned value by stable `ToolExecution` identity. The scoped final-result observer commits a native capture only if that exact execution's final result succeeds. +Arguments are materialized once where model/tool JSON enters the pipeline. Pre-, around-, and post-execute listeners operate on the typed execution and decisions. Call ID correlation, approval, monotonic guards, and Code Mode nesting remain explicit relational checks. -A schema-validation failure becomes the ordinary `INVALID_ARGS` tool result, so the model can correct the value and call the capture tool again within the same turn. +After the last post-execute listener, the registry materializes and freezes the accepted final result once. Every `tools/result` observer receives that exact committed object, and observer failures are awaited and contained individually. An outer pipeline failure is normalized into a committed error result, so observers can discard staged work against the same authoritative boundary. -```text -structured_output.body(value, execution): - validate value against this child's schema - staged[execution] = clone(value) - return ordinary success +### Contribution-owned finality protects only named invariants -on tools/result(execution, finalResult): - if execution is staged: - value = staged.remove(execution) - if finalResult succeeded: - captured = value -``` +Most prompt assembly remains a cooperative waterfall: listeners may reorder, replace, or remove ordinary sections and schemas. A contribution sets `ownerFinal: true` only when its owner must retain final control over that named entry. -For a Code Mode SDK call, successful inner observation records a pending value against the opaque outer `run_code` token. Commit waits for the outer transport's own successful final result because an inner side effect can succeed while the program or its post-policy still fails. +Prompt sections carry owner-finality directly. Tool definitions carry it through the tool provider's `ownerFinalNames`, including canonical absence when a presentation mode intentionally omits a tool. `tools:sdk`, `run_code`, and structured-output instruction/schema contributions use this flag. -```text -on tools/result(innerStructuredCall, innerResult): - if innerStructuredCall is staged: - value = staged.remove(innerStructuredCall) - if innerResult succeeded: - pending = { outerToken: innerStructuredCall.parent, value } +An owner-final name is reserved across the global and scoped layers: a scoped shadow cannot be added beneath a global owner-final contribution, and a global contribution cannot become owner-final while any scoped shadow already exists. This makes the registered owner definition unambiguous before assembly begins. -on tools/result(outerRunCodeCall, outerResult): - if pending.outerToken == outerRunCodeCall.token: - value = pending.value - pending = none - if outerResult succeeded: - captured = value -``` +Assembly takes one private canonical snapshot before the waterfall. After listeners finish, it restores only owner-final names to their canonical presence, absence, definition, and relative anchor among surviving entries. Unrelated listener additions and reordering remain untouched. -Once capture is staged against an outer transport or committed, the scoped guard denies later calls in that response. After commit, `agent/turn-stop` ends the turn after ordinary continuation and steering fold. A child that otherwise completes cleanly without a committed capture returns an error rather than being re-prompted; requesting a schema makes output mandatory, not guaranteed. +Attaching finality to the owning contribution has two benefits. Registration and cleanup cannot drift from a separate protection registry, and the reader can see why a particular prompt/tool entry is special at its definition. -### The run protocol separates acceptance, readiness, result, and disposal +### Structured output commits only authoritative outcomes -`SubagentService.start()` returns synchronously, but `run.started` is the publication boundary. Callers treat the child as live only after readiness, consume `result`, and always dispose the run. +Structured output uses the final prompt/tool boundaries as a two-phase commit. The child-scoped `structured_output` tool and its instruction are owner-final; the tool body validates a candidate and stages it by the current `ToolExecution`, but successful capture is decided only by immutable `tools/result` observations. -Pre-readiness cancellation of an in-process run deactivates the run-owner fiber, prevents publication, rejects `started`, resolves `result` as `aborted`, and emits neither subagent lifecycle edge. +For a native call, the observer deletes the stage and commits its value only when that exact execution's final result succeeds. A post-execute block or outer pipeline failure therefore cannot leave a captured value behind. -`SubagentProvider` registration captures name, capability flags, the `inheritsParentContext` conversation-history descriptor, and the bound start callback once. The descriptor says whether completed parent turns seed the child's conversation; it says nothing about scope, services, tools, or authority. +For a Code Mode SDK call, the inner successful result records `{ parentToken, value }` rather than committing. The observer waits for the `run_code` execution whose token matches `parentToken` and commits only if that outer final result also succeeds. Program failure, runtime abort, or outer post-policy denial discards the pending value. -Starting a run captures every request field once. Parent and abort signal remain identity references; prompt, filter, schema, and options are detached lossless JSON; fixed `persona` and absolute `maxDepth` values validate before backend ownership. The in-process backend separately snapshots its optional session seed, and the service snapshots the terminal result when it settles. +Once a value is pending or committed, a scoped monotonic guard denies later tool calls. After commit, the ordinary serial `agent/turn-stop` listener returns a stop decision after continuation and steering have already folded. A schema-validation failure remains an ordinary `INVALID_ARGS` tool error and leaves the child able to retry within the same turn. -Depth validation repeats at each public entry while one helper owns the accepted domain: +Pure Code Mode omits `structured_output` from native wire schemas and exposes it through the generated SDK. Contribution-owned finality preserves that canonical absence, preventing an assembly listener from fabricating a second native route while keeping the instruction and SDK declaration intact. -```text -tool-subagent plugin load: - assertSubagentMaxDepth(config.maxDepth) +### Four final boundaries have four narrow powers -SubagentService.start(request): - capture and validate request.maxDepth +Owner-final behavior is not a general priority system. Four domain owners need four different one-way powers after cooperative extension points: -startInProcessRun(request): - capture and validate request.maxDepth - parentDepth = validated depthOf(parent) - childDepth = parentDepth + 1 - reject if childDepth is not a safe integer - reject if maxDepth exists and childDepth > maxDepth -``` - -Only `undefined` means parent depth zero. Present depth and cap values must be non-negative safe integers and must not be negative zero; derived overflow rejects even when no request cap exists. - -The service does not expose the backend-owned run handle directly. It captures `id`, `started`, `result`, and methods once; binds methods to that handle; wraps result in one detached frozen record; and installs a shared disposal promise before calling untrusted backend cleanup. Once a callable backend disposer has been captured, a malformed later field triggers rollback; if no callable disposer can be captured, rollback is impossible and acceptance fails immediately. A backend disposer that directly returns the wrapper's reentrant promise is rejected as a cycle instead of hanging. - -```text -startInProcessRun(backendContext, acceptedRequest): - install backend ownership - attach accepted abort signal - create run-owner fiber under accepted parent.ctx - create child through runOwner.ctx.agents with unpublished setup - - started = child creation publication - result = after started: - send accepted prompt - await child idle - derive owned terminal result - dispose = dispose run owner and await quiescence - -SubagentService.start(...): - backendRun = backend.start(detached request) - serviceRun = freeze accepted id, readiness, bound methods, normalized result - observe result immediately - after readiness: - emit subagent/start, then buffered/eventual subagent/end - on readiness failure: - emit neither lifecycle edge -``` - -The service observes result settlement immediately even while readiness is pending, preventing an early rejection from becoming temporarily unhandled. Lifecycle listeners receive one frozen payload; their throws and returned-promise rejections are contained independently and cannot veto the run. - -## Workflow integration preserves the subagent contract - -The [dynamic-workflows RFC](../feature/2026-07-05-dynamic-workflows.md) owns workflow behavior. The agent-scope concern is whether the worker bridge preserves the same readiness, terminal-claim, and bounded-cleanup boundaries across a message port. It never announces an unready child, never lets cleanup rewrite an already chosen result, and never suppresses disposal merely because another terminal fact already won. - -The worker executes the workflow script and exchanges protocol messages; the host owns `SubagentService`, which invokes `SubagentProvider` backends and returns normalized run wrappers that the host retains. Their lifetimes follow dependency shape: an AgentLoop-created agent stops when its loop unloads, while a workflow run captures its holder-bound `SubagentService` at start, so unloading the workflow engine prevents new runs without revoking an already returned run. - -Three state dimensions remain separate: - -| Dimension | Question | Winning rule | +| Boundary | Final power | Why ordinary listener order is insufficient | |---|---|---| -| Admission | May a worker message still start or announce a child? | Closed admission refuses the exact run and cleans it up | -| Terminal claim | Which external result does the workflow expose? | Earlier accepted external cancellation wins; otherwise first result/death claim wins | -| Physical cleanup | Which registered children and worker resources remain? | Every path may still dispose survivors through per-call gates | +| Prompt assembly | Restore named canonical contributions | A later listener can remove or replace an invariant schema or instruction | +| Tool pre-policy | Deny monotonically | A later listener must not re-allow an already denied call | +| Tool result | Observe the immutable committed outcome | Structured output must commit only the result that actually escaped the pipeline | +| Turn continuation | Stop after ordinary continuation folding | A committed terminal output must end the turn | -### Child admission waits for readiness +`ToolGuard` remains the monotonic policy registry. Final tool observation is the contained `tools/result` point described above. Terminal structured output listens on the ordinary serial `agent/turn-stop` fold after normal continuation and steering decisions; no public `strictSerial()` dispatcher is needed for the typed listener contract. -After `SubagentService.start()` returns its normalized wrapper, the host registers that exact wrapper before awaiting, attaches result observers immediately, and rechecks admission both then and when `started` settles. A closed boundary claims cancellation and disposal for that exact entry, removes it only when disposal settles, and reports `ChildStartError` only while the worker reply channel remains open. +### Skill and approval services trust typed callers -The backend's nested `start()` may synchronously reenter workflow cancellation before the service wrapper reaches the host registry. The immediate post-start check and exact-wrapper identity guard close that interval; a backend that later fulfills its own readiness cannot resurrect workflow admission. +Skill registry definitions and approval policies are readonly same-process contracts. Their services do not clone callback objects or defend against post-handoff callback replacement. -```text -after subagents.start returns its run wrapper: - register exact wrapper for cancellation - observe and snapshot result immediately - if admission closed: refuse and clean exact wrapper - else await run.started +Skill still validates external skill files and parsed provider output, routes catalogs through the calling agent's tool view, and disposes registrations exactly. Approval still resolves policy, observes cancellation, routes `approval/request` by `request.agent`, records the durable audit pair, and contains answerer and post-commit observer failures. - on ready: - if admission closed: refuse and clean exact run - else send ChildStarted, then buffered/eventual outcome +## Subagents: readiness is the start promise - on readiness failure: - send ChildStartError only if the worker reply channel remains open - dispose exact wrapper if still registered -``` +Subagent startup has one ownership transfer. The provider owns partial resources until its start promise fulfills with a ready published run; the caller owns the returned run and must dispose it. -### Each terminal contender claims before its own callbacks +### The service contract has one cancellation channel -Each terminal path records the state it owns before invoking its own callback fanout. External `cancel()` records the accepted cancellation reason before invoking child cancellation. On the Result path, the worker queues its `Result` message before settlement cleanup messages on the same port, and the host records the winning result before any Result-triggered abort or cancellation. Reentry therefore observes the fact that already won instead of rewriting it. +`SubagentProvider.start()` and `SubagentService.start()` return `Promise`. The promise fulfills only after the backend has established the child it promises, so callers and `subagent/start` observers never need a second `run.started` readiness promise. -```text -on workflow Result: - cancellationWasAlreadyAccepted = external cancellation is in flight - claim chosen result: - if earlier external cancellation and result is not cancelled: - cancelled result - else: - worker result +`SubagentStartRequest.signal` is required. Aborting it requests cancellation during startup and after readiness. `SubagentRun.dispose()` also requests cancellation and awaits quiescence. There is no separate public `run.cancel()` channel. - if not cancellationWasAlreadyAccepted: - abort shared child-request signal - cancel every registered child through its at-most-once gate - settle chosen result -``` +Optional `sendMessage()` supports a live backend that can accept steering. Optional `resume()` returns `Promise` because the resumed child has the same asynchronous readiness boundary. -The worker may also send a later `ChildCancel`; host fanout and the worker message share one per-call cancellation gate, so an arbitrary backend's `cancel()` need not be idempotent. Each callback is contained independently. +The service validates provider capabilities and request semantics before calling the provider. A provider rejection cleans any partial resources before the rejection escapes and emits no `subagent/start`/`subagent/end` pair. After fulfillment, the service attaches result observation, emits scoped start, and returns the run. Provider removal prevents later starts but does not revoke a run already accepted by the provider. -### Worker death, exit, and disposal remain separate +### In-process providers reuse the core transaction -The first worker death signal closes message admission, claims a death result unless an earlier terminal fact won, cancels and disposes registered children, and synthesizes missing lifecycle ends. A queued message can arrive between Node's `error` and `exit`, so the logical admission barrier—not physical exit—prevents late child creation or narration. +Spawn and fork share one in-process driver. It creates the child through `parent.ctx`, passes the required signal into the core creation transaction, and installs persona, tool restriction, and structured-output contributions during unpublished setup. -Physical exit performs a final disposal-only sweep without repeating explicit cancellation. A cancellation grace period bounds how long the host waits for cooperative settlement before terminating the worker; a grace result can already be chosen while exit cleanup still needs to dispose surviving child handles. The bound is real: after grace expires, public disposal may return after invoking child disposal and reaping host resources even if a slow backend disposer has not reached quiescence. +The provider awaits creation and returns only the published run. At the handoff, core creation detaches its creation-only abort listener; the provider immediately rechecks the signal before installing the live-run listener, so an abort in that narrow interval disposes the new handle instead of escaping cancellation. Parent teardown follows the child because the operation belongs to `parent.ctx`; provider unload blocks new starts but does not become a second revocation owner for accepted runs. The run disposer cancels the child and awaits the AgentHandle's ordered teardown. -Public `handle.dispose()` claims its shared promise before invoking cancellation or child callbacks. Each `disposeChild` likewise claims its call-ID promise before invoking the backend disposer. Public-first reentry joins the public promise; worker-first reentry lets the holder traversal join the already claimed child promise. Settled `dispose()` still drives a host-side reap before awaiting quiescence, so a fire-and-forget child cannot remain alive merely because workflow result settlement already occurred. +Spawn uses an empty session seed. Fork uses a validated completed-turn prefix. Conversation seeding changes history only and does not import scope, tools, services, or authority. -Together these rules ensure `workflow/agent-start` names only ready children, external result precedence is stable, and every surviving child reaches disposal. +### ACP providers own the process until readiness or cleanup + +An ACP provider crosses a real process and wire boundary, so it retains validation, environment scrubbing, message serialization, abort/process races, and kill-to-exit quiescence. + +Start resolves only after `initialize` and `newSession` succeed. Abort, spawn failure, RPC failure, or invalid startup response reaps the process before rejection. After readiness, result maps the ACP prompt outcome and streamed output; dispose requests cancellation, closes the connection, and awaits process exit through one memoized path. + +## Workflows and ACP UI: retain only independent async facts + +Worker and editor bridges need more state than same-process registries because messages, process death, and rendering can settle independently. Their state is organized around those real facts rather than duplicate cancellation protocols. + +### Workflow children are pending starts or published records + +The workflow host keeps pending provider-start promises and published child records. A child moves from pending to published only when async `SubagentService.start()` fulfills; rejected starts clean their partial provider work and produce no child lifecycle pair. + +One host-owned AbortController supplies the required signal to pending and live children. Closing workflow admission aborts that signal, so there is no duplicate `ChildCancel` worker RPC or explicit host-side `run.cancel()` fanout. Quiescence waits for both pending starts and published child disposal. + +The worker boundary still serializes requests and outcomes. The host retains first-terminal-outcome arbitration, exact child accounting, worker-death handling, grace termination, late/duplicate message rejection, and bounded cleanup because result receipt, worker exit, and child quiescence are genuinely independent facts. + +### Terminal result and physical cleanup remain separate + +The workflow result records the first accepted terminal outcome according to the public precedence rules. Cleanup can continue after that result is chosen: live children still need disposal, a worker still needs termination, and a slow external backend may outlive the configured grace bound. + +Public disposal claims its memoized promise before invoking callbacks. Worker death closes admission before processing any queued late child request, synthesizes missing lifecycle ends, and starts child/process cleanup without rewriting an outcome already claimed. + +### ACP prompt settlement does not depend on rendering success + +The ACP UI correlates a prompt with its observed turn directly. It does not scan from a `logWatermark` or use session status as a second reconciliation oracle. + +Prompt handling settles correlation in a `finally` around transcript rendering. A rendering failure can fail presentation, but it cannot skip prompt settlement or leave the session permanently in flight. Concurrent loads of the same persisted caller-supplied session ID remain excluded because that is a real persistence identity race, not a UUID collision concern. ## Correctness enforcement -The runtime rule is checked at four escape boundaries: API shape couples related subjects, TypeScript marks typed dispatch, development invariants inspect actual dispatch, and repository gates keep declarations aligned with enforcement. +The design is enforced at types, runtime escape points, generated contracts, and behavioral tests. No one layer is asked to prove what it cannot observe. -### API shape couples values that must agree +### Types make the ordinary path hard to misuse -`agentEvents(context, agent)` couples carrier, subject, and first event argument. `assembleContextFor(agent)` couples prompt facts with scope selection. `SessionStore.flush(session)` owns lookup of the carrier captured when the session entered. +Readonly contracts describe borrowed same-process values. `Scoped` marks event receivers, `agentEvents()` fuses carrier and subject, tool inputs omit registry-owned tokens, and subagent async return types expose readiness directly. -```text -assembleContextFor(agent): - return { agent, scope: agent } +TypeScript cannot govern JavaScript casts, direct Cordis dispatch, process messages, or durable files, so runtime enforcement remains at those escape points. -agentEvents(context, agent): - carrier = scopeTarget(agent, agent) - return dispatcher that always injects agent as the event subject -``` +### Runtime invariants cover cross-service facts -These helpers make a mismatch harder to express than the correct spelling. +The invariants plugin verifies that every declared scoped event uses a marked carrier and that event families exposing a subject use the matching key. Session trace validation stages before append commit and advances after the same event commits. -### Type markers cover every scoped event declaration +The plugin does not police trusted setup by scanning registries or reject prompt assembly objects fabricated through casts. Those checks would turn composition contracts into speculative runtime machinery without protecting a real external boundary. -Scoped agent, approval, tool, prompt, session, and subagent lifecycle events declare a `Scoped` receiver. TypeScript rejects a bare subject at typed dispatch sites, including subagent lifecycle events scoped to the delegating parent. +### Generated artifacts keep public contracts aligned -The marker is compile-time only; JavaScript, casts, and direct Cordis dispatch can bypass it. +The event catalog, service catalog, producer/consumer matrix, configuration catalog, module graph, tool catalog, and type-equivalence blocks are generated or freshness-gated from source. `verify-scoped-dispatch` keeps the declared scoped-event set aligned with runtime invariant coverage. -### Development invariants inspect actual dispatch - -The invariants plugin uses Cordis's internal dispatch as the pre-delivery enforcement point. Every scoped event requires a marked carrier, and events whose arguments expose the subject require the carrier key to be the same object. For `session/event`, callback resolution also precedes the log push: the plugin validates and stages the exact candidate there, then advances its live trace only when the same committed event reaches its contained post-commit listener. A later internal check can therefore veto without advancing either log or trace. Both halves of this oracle are explicitly global, so mounting the plugin under a scoped context cannot stage a foreign event without also applying its committed transition. - -Session and subagent payloads do not expose their owner key directly, so their service centralizes key selection and the invariant proves carrier presence. Additional invariants reject an assembly whose `agent` and `scope` disagree and a turn opened before `agent/session-start`. - -Dedicated `dsh-scope` unit tests cover the carrier's advanced Proxy behavior: private-field method binding, call/construct shape, primordial filter invocation, own-key/descriptor consistency, and explicit configurable definitions. These are implementation tests, not checks performed by the invariants plugin. - -### Repository gates keep declarations and dispatchers aligned - -`verify-scoped-dispatch` compares declared scoped events with the runtime invariant table, and the generated event matrix requires every declaration to name a recognized dispatcher. Source JSDoc generates the [event catalog](../../../cordis-catalog/events.md), which remains the exhaustive signature and mode reference. +Behavioral tests pin scoped routing and disposal, final-entry collision cleanup, publication rollback, ordered quiescence, durable pre/post-commit behavior, live tool filtering across presentation and execution, owner-final Code Mode and structured output, async subagent startup and signal cancellation, worker terminal arbitration, ACP settlement, and process teardown. ## Alternatives considered -The [agent-scope contract](2026-07-08-agent-scope-contexts.md#alternatives-considered) owns the rejected public architectures: explicit agent parameters, event-only filtering, per-agent service graphs, and hierarchical registration inheritance. This RFC records the implementation alternatives rejected after choosing the public contract. +The [July 8 RFC](2026-07-08-agent-scope-contexts.md#alternatives-considered) owns alternatives to the public flat-scope contract. The alternatives here concern implementation shape. -### Publish the agent before running setup +### Use a transparent proxy as the scope carrier -Early publication lets setup find the agent in global registries but lets observers act on a partially configured world. Rollback can remove entries but cannot retract external effects from listeners that already ran. +A proxy that impersonates the subject must preserve property, callable, constructable, private-field, descriptor, and proxy-invariant behavior that listener routing never needs. A small opaque carrier keeps the filter and key while the explicit event argument carries the subject. -The unpublished setup callback already receives `agent.ctx` and `ctx.agent`, so early global lookup is unnecessary. +### Reserve agent and session IDs before setup -### Allow only synchronous setup +Reservations prevent duplicate private setup work but require cross-service capabilities, release ordering, abandoned-reservation cleanup, and prepared-object binding. IDs are caller-supplied and concurrent reuse is caller error; final entry can choose the winner while the losing transaction rolls back cleanly. -Synchronous setup cannot honestly compose child plugins whose activation is asynchronous. TypeScript also permits a promise-returning callback where a void return is expected, so a synchronous-looking type would not reliably contain accidental async work. +### Snapshot every typed same-process argument -Awaited setup makes the transaction explicit and keeps first publication and prompt assembly behind it. +Universal copying defends against stateful getters and callers that violate readonly contracts, but it adds allocation, duplicated validators, and paths that can forget to copy. Materialization belongs at parser, queue, model, durable, worker, process, and wire boundaries where ownership actually changes. -### Validate caller data, then clone it +### Give readiness, cancellation, and disposal separate controllers -Validation followed by a separate clone rereads accessors, so it can approve one value and retain another. A generic JSON clone can also erase or coerce exotic prototypes and unsupported values. The lossless-JSON traversal validates and materializes one captured value in the same operation. +Parallel sentinels can all mirror whether one operation is live. One transaction or start promise owns the operation; separate promises remain only where publication unwind, external work, terminal result, and physical quiescence can settle independently. -### Enforce invariants with prepended waterfall listeners +### Keep synchronous subagent start plus `run.started` -A prepended listener is not permanently outermost: another plugin can prepend later, a short-circuit can skip inner work, and an outer wrapper can replace a downstream result. The same defect appears in prompt assembly, tool decisions, result commit, and turn continuation. +This splits provider acceptance from readiness and forces every consumer to register a partial run, attach result observation, await readiness, and clean up readiness failure. An async start promise makes provider-to-caller ownership transfer the readiness boundary itself. -The four owner-final APIs express the exact one-way power required: restore named canonical data, deny monotonically, observe immutable final outcome, or stop after ordinary continuation folding. +### Keep a separate prompt-protection registry -### Put agent-scope policy inside vendored Cordis +A protection registration mirrors the names and lifetime already owned by prompt sections and tool definitions. `ownerFinal` keeps the exceptional policy on the contribution and lets assembly derive the canonical set directly. -Cordis already supplies derived contexts, effect ownership, and receiver-based filtering. The harness-level primitive composes those domain-neutral mechanisms rather than teaching Cordis about agents, tools, prompts, or global-plus-agent merge rules. +### Remove worker/process lifecycle guards with same-process hardening -The lifecycle hardening remains correctly inside Cordis because effect pre-registration, parent ownership before child publication, and rejection of late effects protect every plugin under reentrant hot reload, not only agent scopes. +Worker messages, process death, and durable input do cross ownership and serialization boundaries. First-outcome arbitration, validation, environment scrubbing, and quiescent process cleanup remain necessary even though hostile same-process callback machinery does not. ## Consequences -The implementation makes the contributor contract locally checkable at each escape boundary. Its cost is explicit runtime machinery for key coherence, continuous ownership, accepted-value stability, and post-middleware finality. +The implementation is smaller and its proof follows the same shape as its ownership graph. One key selects a layer, one entry owns a live registry object, one transaction owns creation, one resolver owns a tool view, and one async promise transfers subagent ownership. -### Correctness properties +### What the design guarantees -The mechanisms compose into five properties: +- A scoped contribution is visible only in its exact agent view and is disposed with that scope. +- Create and resume expose no partially configured handle; final-entry losers and publication failures clean every prepared resource. +- Disposal retains scoped listeners and persistence through driver drain and final session work, then revokes the scope. +- Durable, queued, model, worker, process, and wire values are owned at their real boundary; typed same-process values follow readonly contracts. +- Tool presentation and execution resolve the same live view, and committed results have one immutable observation point. +- Owner-final prompt/tool contributions survive cooperative assembly without freezing unrelated middleware behavior. +- Subagent start returns only a ready run, required signals cancel pending or live work, and disposal reaches the backend's quiescence contract. +- Worker/process result precedence and cleanup remain correct under death, late messages, and bounded teardown. -- Registry layers and event carriers derive from one opaque key, while fused helpers couple subjects that must agree. -- Reservations, sentinels, provider tracking, publication barriers, and reverse teardown cover every asynchronous or reentrant ownership interval. -- At the hardened boundaries listed above, accepted identities and snapshots prevent runtime accessors or later mutation from splitting validation, execution, logging, and observation. -- Prompt protection, guards, final-result observation, and terminal stop each have only the one-way power their invariant requires. -- In-process subagents and workflow runs preserve readiness, terminal precedence, and disposal under provider callbacks, worker death, and racing owners. +### Costs and limits -### Costs and constraints +Scope-aware services still maintain global and identity-keyed maps, and operations must carry their real agent explicitly. Async create/resume and subagent start require callers to await ownership transfer and dispose returned handles. -The proof is not free: +The design trusts typed plugins in the same process. It does not defend against arbitrary casts, stateful getters, mutation that violates readonly contracts, or a plugin deliberately using ambient service access outside the supported composition API. -- Registries keep global and per-scope state, and every scoped dispatcher must preserve the operation subject through a proxy-shaped carrier. -- Programmatic create and resume require reservation capabilities, two-owner tracking, rollback state, ordered publication, and a shared quiescence promise. -- Acceptance boundaries copy, freeze, bind, or retain values according to their contract, increasing allocation and validation work. -- Owner-final behavior uses four explicit APIs instead of relying on ordinary listener ordering. -- Runtime invariants, generated dispatch checks, and focused Proxy/lifecycle/race tests remain necessary because TypeScript cannot enforce direct JavaScript dispatch or runtime reentrancy. - -The direct no-setup `ctx.agentLoop.create()` path remains synchronous for configuration and callers that already have complete options. Programmatic registry create/resume use the full unpublished transaction. - -### Limits of the proof - -The proof covers services and event families that explicitly adopt the agent-scope helpers. It does not make every service call scope-aware, strengthen the ordering contract of a custom agent registered outside AgentLoop, or force an arbitrary external subagent backend to reach quiescence after a workflow grace deadline. - -The [security and authority non-goal](2026-07-08-agent-scope-contexts.md#security-and-authority-are-explicit-non-goals) is part of the public contract. These mechanisms prove composition and ownership behavior inside one trusted process; they do not prove confinement or parent-to-child non-escalation. +The [security and authority non-goal](2026-07-08-agent-scope-contexts.md#security-and-authority-are-non-goals) remains fundamental. These mechanisms prove registration composition, publication, and lifetime ownership; they do not prove confinement or parent-to-child non-escalation. diff --git a/docs/rfc/implemented/feature/2026-06-15-code-mode.md b/docs/rfc/implemented/feature/2026-06-15-code-mode.md index be18e94ae0..16f42104be 100644 --- a/docs/rfc/implemented/feature/2026-06-15-code-mode.md +++ b/docs/rfc/implemented/feature/2026-06-15-code-mode.md @@ -24,11 +24,11 @@ Three decisions, each elaborated in its own section below: `ToolRegistry` gains a schemastery-validated config (`static Config`), its first: `mode: 'native' | 'code' | 'both'`, default `'native'`. A deployment flips it from `cordis.yml` (`tools: { mode: code }`) — no code edit, per the no-hardcoded-tunables convention. -**Wire tool list = the registry's contribution.** The registry feeds assembly through a mode-aware provider: `'native'` contributes every capability visible to that assembly scope, `'code'` contributes only `run_code`, and `'both'` contributes both. Because [`PromptAssembly.tools` is the single source the loop's request header snapshots](../../../../packages/core/system-prompt/src/index.ts), the presentation is logged and reconstructable. The reserved transport is not a capability: it lives outside global/scoped registration and restriction layers, cannot be registered or shadowed, and cannot be named by `ctx.tools.restrict()`. `systemPrompt.protect()` restores its canonical schema after the complete assembly waterfall, so listeners cannot strip, replace, duplicate, or fabricate it. The mode governs only the registry's contribution; a deployment that deliberately installs another direct `systemPrompt.tools()` provider still owns that provider's schemas. +**Wire tool list = the registry's contribution.** The registry feeds assembly through a mode-aware provider: `'native'` contributes every capability visible to that assembly scope, `'code'` contributes only `run_code`, and `'both'` contributes both. Because [`PromptAssembly.tools` is the single source the loop's request header snapshots](../../../../packages/core/system-prompt/src/index.ts), the presentation is logged and reconstructable. The reserved transport is not a capability: it lives outside global/scoped registration and restriction layers, cannot be registered or shadowed, and cannot be named by `ctx.tools.restrict()`. Its `ToolDefinition` declares `ownerFinal: true`, so the provider reports the name as final and assembly restores its canonical schema or canonical absence after the waterfall. The mode governs only the registry's contribution; a deployment that deliberately installs another direct `systemPrompt.tools()` provider still owns that provider's schemas. **Interaction with `toolOrder`, stated up front:** a configured `systemPrompt.toolOrder` naming native capabilities rejects every assembly under `mode: 'code'`, because those names are outside that mode's wire-validation universe. This is correct behavior, not a bug: a deployment using Code Mode updates its order config or drops it. -**The SDK prompt section.** Under `'code'` and `'both'` the registry registers one lazy prompt section (`tools:sdk`, in the 100–199 tool-guidance order band) whose thunk regenerates, for each assembly scope, a TypeScript declaration of every visible end-capability tool plus fixed usage instructions. It uses the same visibility resolver as lookup and execution, so scoped grants and shadows appear while restricted globals disappear; the reserved `run_code` transport itself is excluded. The thunk emits tools in lexicographic name order, so an unchanged visible set produces byte-identical text, and `systemPrompt.protect()` restores the canonical section after every assembly listener. Because that protection is global, it also reserves the `tools:sdk` registry name against scoped section shadows; otherwise scoped-over-global resolution could make a later shadow look canonical before restoration. +**The SDK prompt section.** Under `'code'` and `'both'` the registry registers one lazy prompt section (`tools:sdk`, in the 100–199 tool-guidance order band) whose thunk regenerates, for each assembly scope, a TypeScript declaration of every visible end-capability tool plus fixed usage instructions. It uses the same visibility resolver as lookup and execution, so scoped grants and shadows appear while restricted globals disappear; the reserved `run_code` transport itself is excluded. The thunk emits tools in lexicographic name order, so an unchanged visible set produces byte-identical text. The section declares `ownerFinal: true`, which restores its canonical contribution after every assembly listener and reserves the global name against scoped shadows. **Codegen.** A pure `jsonSchemaToTs(schema)` module inside `dsh-tools` (sibling of `json-schema.ts` — `schemas()` and the SDK are two projections of the same store) maps the JSON-Schema subset the `defineTool` DSL emits (object/string/number/boolean/array, `properties`, `required`, string `enum` → literal union, nested objects, array `items`, `description` → JSDoc) to a TS type literal. It is **total**: any construct outside that subset (`$ref`, `oneOf`/`anyOf`, `integer`, future MCP shapes, …) degrades to `unknown` without throwing. Because `ToolSchema.name` is an arbitrary string, the SDK is declared as one object constant — `declare const tools: { "some-mcp-tool"(args: …): Promise; bash(args: …): Promise; … }` — quoted keys make every name reachable with no sanitization or alias-collision logic. Typing is advisory (the runtime executes type-stripped JS); the instructions say so. diff --git a/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md b/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md index f26aa501ef..c24c6102d9 100644 --- a/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md +++ b/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md @@ -35,9 +35,9 @@ A new package group `packages/subagent/`: | `@deepseek-ai/dsh-subagent-mock` | support: a scripted provider for testing the seam through the real load path | | `@deepseek-ai/dsh-tool-subagent` | consumer: the model-facing `subagent` tool over `ctx.subagents` | -### The primitive: `start → SubagentRun` +### The primitive: async `start → SubagentRun` -A provider exposes `start(request) → SubagentRun`. The run carries `started` (the provider's publication/readiness promise), `result` (the terminal `SubagentResult`), `cancel()`, and `dispose()`. The transport-neutral verb is **`start`**; "spawn" is reserved for the in-process `dsh-subagent-spawn` backend's identity, not the service verb. The service's `start(name, request)` resolves the named provider, validates capabilities, delegates, and waits for `started` before emitting the paired `subagent/start` / `subagent/end`; an attempt that never establishes a child emits neither lifecycle event. For an in-process backend, readiness means the child is published in `ctx.agents`; for ACP it means the remote session exists. +A provider exposes `start(request) → Promise`. Promise fulfillment is the publication/readiness and provider-to-caller ownership boundary: for an in-process backend the child is already published in `ctx.agents`, and for ACP the remote session already exists. `SubagentStartRequest.signal` is the single cancellation channel before and after readiness; `SubagentRun` carries the terminal `result` and a `dispose()` method that cancels remaining work and awaits quiescence. The transport-neutral verb is **`start`**; "spawn" is reserved for the in-process `dsh-subagent-spawn` backend's identity, not the service verb. A rejected start cleans provider-owned partial resources and emits neither subagent lifecycle event. ### Two kinds of optional capability, discovered two ways @@ -54,7 +54,7 @@ Each subagent runs in its **own `Session`** (own id, `parentSession` lineage), p ### Synchronous collect (first cut) -The `dsh-tool-subagent` consumer awaits `run.result` and returns the child's final output as the tool result, blocking the parent's turn until the child finishes. It does so inside a `try/finally` that always `dispose()`s the run (no leaked idle child/session on any path), bridges `exec.signal` to `run.cancel()`, and maps a non-`completed` stop reason to an `isError` result rather than returning partial output as success. Steering (`sendMessage`) is part of the contract but **intentionally unused** this cut. +The `dsh-tool-subagent` consumer passes its execution signal into the start request, awaits the ready run's `result`, and returns the child's final output as the tool result, blocking the parent's turn until the child finishes. A `try/finally` always `dispose()`s the run, so no success, failure, or cancellation path leaks an idle child/session. A non-`completed` stop reason maps to an `isError` result rather than returning partial output as success. Steering (`sendMessage`) is part of the contract but intentionally unused in this consumer. ### Provider selection is config, not model-facing @@ -66,7 +66,7 @@ The seam is tested through the real cordis Loader / export path, not a hand-buil ## Consequences -- **Recursion.** Without a guard, an in-process child inherits the spawn tool and can spawn unboundedly. Depth-limit is an optional capability (the in-process backends enforce it; ACP advertises it off and rejects a `maxDepth` request); tool-filtering is likewise optional. Tool-filtering, when implemented, needs a `tools/pre-execute` deny in the child context — schema filtering alone is insufficient because a model can hallucinate a denied tool name. +- **Recursion.** Without a bound, an in-process child can see the delegation tool and recurse. The in-process backends implement the optional absolute depth limit and scoped live-global `toolFilter`; ACP advertises both capabilities off and rejects such a request. The [subagent composition-controls RFC](2026-07-12-subagent-persona-tool-filter-and-depth.md) owns their exact semantics and security limits. - **Blocking the parent turn.** Synchronous collect holds the parent's `runStep` open for the child's full duration. This is acceptable for the first cut; **background / poll / spill semantics are deferred to a future redesign that unifies long-running-tool handling across subagents AND bash** (a sub-agent and a long `bash` background task pose the same "the model started something slow, how does it collect later" problem, and should share one mechanism rather than each inventing its own). - **Live progress.** This cut surfaces only lifecycle + final result; a per-chunk child→parent update stream is deferred with the background redesign. - **ACP client surface.** Proxying `fs`/`terminal` from the ACP child back to the parent (a shared-workspace mode) is future work; the first cut advertises neither, so the child self-serves in its own process. diff --git a/docs/rfc/implemented/feature/2026-06-22-acp-subagent-backend.md b/docs/rfc/implemented/feature/2026-06-22-acp-subagent-backend.md index ec608177b4..518f9dedef 100644 --- a/docs/rfc/implemented/feature/2026-06-22-acp-subagent-backend.md +++ b/docs/rfc/implemented/feature/2026-06-22-acp-subagent-backend.md @@ -34,7 +34,7 @@ The child is a separate process, so it inherits an environment. Credential-shape Designed at every tier the backend touches, per the root AGENTS.md rule that a new capability shape names its coverage at every tier at plan time: -- **Keyless unit/integration** (`subagent-acp.spec.ts`): spawns a scripted mock ACP server subprocess (`tests/mock-acp-server.ts`) and drives it through the real backend over real ACP stdio. Covers: the prompt round-trip + output accumulation; every StopReason mapping; cancellation via `run.cancel()` and via the request signal; the already-aborted-before-start case; the cancel-races-ahead-of-newSession case; a torn-pipe-after-cancel (child crashes on cancel) settling `aborted`; permission auto-answer under both policies (including the allow-policy-no-allow-option fallback); a non-message update consumed but not accumulated; a nonexistent-command spawn failure settling `error`; HMR provider cleanup; and the namespace export shape. 100% per-file coverage. +- **Keyless unit/integration** (`subagent-acp.spec.ts`): spawns a scripted mock ACP server subprocess (`tests/mock-acp-server.ts`) and drives it through the real backend over real ACP stdio. Coverage includes the prompt round-trip and output accumulation; every StopReason mapping; cancellation through the required request signal and through disposal; already-aborted and cancel-races-ahead-of-newSession starts; a torn pipe after cancellation settling `aborted`; permission auto-answer under both policies; non-message updates; nonexistent-command startup failure with process reaping; provider HMR; and the namespace export shape. - **With-key e2e** (`subagent-acp.e2e.ts`): the harness drives ITSELF — the backend spawns the real `acp-agent` example process and a real model in that child answers a prompt (PONG) and does real file work (writes `proof.txt`, verified on disk). Self-skips without `DEEPSEEK_API_KEY`. This is the "talk to our own process" smoke and the out-of-process analogue of the in-process spawn e2e. - **Snapshot**: deferred as `TODO(acp-subagent-replay)`. An ACP child is a distinct replay shape — each child is its own PROCESS with its own single-agent replay (booted under `DSH_SNAPSHOT=replay` with its own sessions-root + fixture), unlike the in-process per-session keying that [the per-session replay RFC](../testing/2026-06-22-subagent-snapshot-replay.md) added. The keyless mock-server tests give deterministic coverage of the backend in the meantime; the snapshot follow-up would record the parent driving a real-but-replayed ACP child. diff --git a/docs/rfc/implemented/feature/2026-06-30-subagent-observe-enrich.md b/docs/rfc/implemented/feature/2026-06-30-subagent-observe-enrich.md index 17730458de..aa853edd24 100644 --- a/docs/rfc/implemented/feature/2026-06-30-subagent-observe-enrich.md +++ b/docs/rfc/implemented/feature/2026-06-30-subagent-observe-enrich.md @@ -6,13 +6,13 @@ Status: implemented The hooks subsystem ([interception seams RFC](2026-06-30-interception-seams.md)) lets a plugin observe and gate the agent at lifecycle points. Claude Code and Codex both expose **SubagentStart / SubagentStop** hooks, and CC's carry the subagent's final message. The harness already emits `subagent/start` and `subagent/end` lifecycle events ([the subagent capability-seam](2026-06-21-subagent-capability-seam.md)), but their payloads were minimal (`provider`, `id`, and on end `stopReason`) — not enough for a hooks bridge to report WHAT a subagent produced without separately reaching for the live run. -This RFC enriches the end payload. It is deliberately **observe-only**: no control-flow change, no waterfall, no `start()` restructure. A run-affecting subagent-stop decision (continuation, injection that changes the run) is a separate, larger redesign and stays out of scope. +This RFC enriches the end payload. It is deliberately **observe-only**: no control-flow change and no waterfall. A run-affecting subagent-stop decision (continuation, injection that changes the run) is a separate, larger redesign and stays out of scope. ## Decision -**Add `lastAssistantMessage` — the child's final output — to `SubagentRunEndInfo`.** On the settle path it is a DEEP CLONE of `SubagentResult.output` (so an observer sees WHAT the subagent produced without holding the run). On the REJECT path (an infrastructure fault where no `SubagentResult` was produced — the seam only knows `stopReason: 'error'`) it is absent. The clone is load-bearing for observe-only: the `subagent/end` emit fires from a detached `.then` registered *before* `start()` returns, i.e. before the caller's own `await run.result` continuation — handing listeners the same array reference would let a mutating listener corrupt the caller's `SubagentResult.output`. `structuredClone` makes the event a read-only view (a regression test mutates the event's array and asserts the caller's result is untouched); a clone failure is contained (logged, the event still fires without `lastAssistantMessage`) rather than becoming an unhandled rejection on the detached `.then`. +**Add `lastAssistantMessage` — the child's final output — to `SubagentRunEndInfo`.** On the settle path it is the readonly typed `SubagentResult.output`, so an observer sees what the child produced without holding the run. On an infrastructure rejection where no `SubagentResult` exists, it is absent and the event reports `stopReason: 'error'`. Providers and listeners are trusted same-process collaborators and honor the borrowed immutable payload contract. -Both events stay plain **`emit`s**. The service waits for `run.started` before firing `subagent/start`; an in-process listener can therefore reach the published child via `ctx.agents.get(info.id)` and `inject()` into it, while a remote provider need not have a local registry entry. It observes `run.result` immediately, snapshots the end payload before the caller can mutate it, and emits `subagent/end` only after start; readiness rejection emits neither event. The callbacks remain observe-only and per-listener containment keeps one bad subscriber from stranding a live run, surfacing as an unhandled rejection, or starving later listeners. +Both events stay plain **`emit`s**. Async `SubagentService.start()` attaches result observation to the ready provider run, emits `subagent/start`, and then returns the run; an in-process listener can therefore reach the published child via `ctx.agents.get(info.id)`, while a remote provider need not have a local registry entry. A rejected provider start emits neither event. The callbacks remain observe-only and per-listener containment keeps one bad subscriber from stranding a live run or starving later listeners. ## Alternatives considered diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index 47d9ec0473..ed718686ef 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -26,7 +26,7 @@ One deliberate strictness DIVERGENCE from CC: hook misuse — unknown or deferre **Why node:worker_threads**: one run uses one unpooled worker because a workflow run is already heavyweight relative to thread startup. The script runs in a vm context inside the worker, keeping the script-visible surface to the hook contract instead of exposing a bare worker realm, while `agent()` bridges by message-port RPC to I/O-bound child loops on the host. This keeps `start()` from blocking the host on the script's synchronous slice, makes the post-cancel deadline end in a real `worker.terminate()`, and gives cross-thread values a serialization boundary by construction. isolated-vm was rejected for its maintenance state, required `--no-node-snapshot` consumer flag on Node ≥ 20, and node-gyp fallback. -Host-side meta validation and body pre-parsing preserve the seam's synchronous errors, and private enum-keyed payload maps define the wire protocol. Readiness admission, the two child-cancellation channels, worker-death reaping, result precedence, and disposal quiescence preserve the subagent run contract across that wire; the [agent-scope runtime-design RFC](../architecture/2026-07-12-agent-scope-runtime-design.md#workflow-integration-preserves-the-subagent-contract) owns those race algorithms. Coverage uses an in-process `MessageChannel` for worker-side logic that main-process V8 coverage cannot see and separately proves the built `lib/worker.js`—a second tsdown entry sanctioned by the `"./worker"` subpath export—under plain Node in the built-bin smoke gate. +Host-side meta validation and body pre-parsing preserve the seam's synchronous errors, and private enum-keyed payload maps define the wire protocol. Pending async starts, published child records, one host cancellation signal, worker-death reaping, result precedence, and disposal quiescence preserve the subagent run contract across that wire; the [agent-scope runtime-design RFC](../architecture/2026-07-12-agent-scope-runtime-design.md#workflow-children-are-pending-starts-or-published-records) owns those race algorithms. Coverage uses an in-process `MessageChannel` for worker-side logic that main-process V8 coverage cannot see and separately proves the built `lib/worker.js`—a second tsdown entry sanctioned by the `"./worker"` subpath export—under plain Node in the built-bin smoke gate. **Meta as data, never evaluated**: the meta block reaches the seam as a plain JSON request field (the tool's schema-validated `meta` parameter) and the engine only shape-validates it, every violation named. This is a host-isolation invariant, not a convenience: evaluating a meta literal host-side — even one contractually "pure", in an empty timed vm context — hands script-controlled getters a host stack with no timeout the moment the result is READ, defeating the exact spin isolation the worker thread buys. @@ -42,7 +42,7 @@ A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, awai An output schema makes a schema-valid committed capture mandatory for successful child completion. The scoped runtime preserves the canonical capture tool and instruction, commits only a successful final outcome—including the enclosing `run_code` outcome for an SDK call—denies later side effects after capture becomes pending, and stops the child without another model step after commit. A validation failure remains a retryable tool error; clean completion without a committed capture settles as an error. -`StructuredOutputSchema` is the raw enforceable JSON-Schema subset in `dsh-tools` (single-string `type`, `properties`/`required`/`additionalProperties`, `items`, scalar `enum`/`const`), and unsupported keywords fail loudly because that wire data becomes the capture tool's parameters verbatim. The [agent-scope runtime-design RFC](../architecture/2026-07-12-agent-scope-runtime-design.md#structured-output-is-a-child-owned-terminal-protocol) owns the assembly, commit, guard, and terminal-stop correctness algorithms. +`StructuredOutputSchema` is the raw enforceable JSON-Schema subset in `dsh-tools` (single-string `type`, `properties`/`required`/`additionalProperties`, `items`, scalar `enum`/`const`), and unsupported keywords fail loudly because that wire data becomes the capture tool's parameters verbatim. The [agent-scope runtime-design RFC](../architecture/2026-07-12-agent-scope-runtime-design.md#structured-output-commits-only-authoritative-outcomes) owns the assembly, commit, guard, and terminal-stop correctness algorithms. ## Deferred (documented non-goals of this cut) diff --git a/docs/rfc/implemented/feature/2026-07-06-approval-seam.md b/docs/rfc/implemented/feature/2026-07-06-approval-seam.md index 0579bf2629..5d82226a96 100644 --- a/docs/rfc/implemented/feature/2026-07-06-approval-seam.md +++ b/docs/rfc/implemented/feature/2026-07-06-approval-seam.md @@ -49,11 +49,11 @@ The `escalation-rejected` twin ends in `{"outcome": "rejected"}` instead: nothin #### The seam: mechanism and policy split -After request validation and a successful `approval/asked` append, the answerer phase always resolves to a closed `ApprovalOutcome` — `allowed-once` / `rejected` / `cancelled` / `unavailable`. The service synchronously snapshots and shallow-freezes the accepted request before its first asynchronous boundary: scalar fields are copied while the agent and `AbortSignal` remain exact identity capabilities, so later caller mutation cannot redirect scope, payload, cancellation, or either audit event. The service dispatches the `approval/request` waterfall, races the captured signal (abort settles `cancelled`; a late answer is discarded, never double-audited), contains a throwing answerer as `unavailable`, normalizes a rogue non-vocabulary return to `unavailable`, and lands the log-only audit pair `approval/asked`/`approval/decided` (paired by the branded `ApprovalRequestId`) on the captured agent's captured session log. Request acceptance and either pre-commit audit append may still reject; returning a decision that could not be logged would violate the pair. Session owns post-commit observer containment, so a callback failure cannot turn an authoritative audit append into a rejected request or suppress the matching event. Grants are one-shot by definition: `allowed-once` authorizes the single asked-about action, never a class of future ones, and the service stores nothing between requests. `request()` also throws before appending anything when the agent's session has no open turn — the audit pair must be turn-enclosed, the turn being the durable log's commit/replay boundary (a bare event between turns is dropped as crash tail on reload); every ask path runs mid-turn already, and idle asks are a deferred design. +After request validation and a successful `approval/asked` append, the answerer phase always resolves to a closed `ApprovalOutcome` — `allowed-once` / `rejected` / `cancelled` / `unavailable`. `ApprovalRequest` is a readonly same-process contract, so the service borrows its routing identity and cancellation signal instead of copying the record or capturing a parallel callback bundle. It dispatches the `approval/request` waterfall, races the request signal (abort settles `cancelled`; a late answer is discarded, never double-audited), contains a throwing answerer as `unavailable`, normalizes a rogue non-vocabulary return to `unavailable`, and lands the log-only audit pair `approval/asked`/`approval/decided` (paired by the branded `ApprovalRequestId`) on the request agent's session log. Request acceptance and either pre-commit audit append may still reject; returning a decision that could not be logged would violate the pair. Session owns post-commit observer containment, so a callback failure cannot turn an authoritative audit append into a rejected request or suppress the matching event. Grants are one-shot by definition: `allowed-once` authorizes the single asked-about action, never a class of future ones, and the service stores nothing between requests. `request()` also throws before appending anything when the agent's session has no open turn — the audit pair must be turn-enclosed, the turn being the durable log's commit/replay boundary (a bare event between turns is dropped as crash tail on reload); every ask path runs mid-turn already, and idle asks are a deferred design. Answerers are the policy, and they are `approval/request` waterfall listeners. The waterfall buys exactly what the seam needs: with zero listeners the dispatch falls through to the caller-supplied default — `unavailable`, so fail-closed needs no configuration and no code in any deployment; a listener that recognizes the request's agent answers by returning an outcome without calling `next()` (the decision slot is single-occupancy, first answer wins — the same documented semantics as the `fs/write-intent` gate); a listener that does not recognize the agent MUST delegate via `next()` so another answerer or the default gets the question; and listeners dispose with their owning fiber, so an unloaded UI plugin degrades the next ask to `unavailable` instead of leaving a dangling channel. Registration order across sibling plugins is not load-order deterministic (the loader starts siblings concurrently), so a deployment composes ONE terminal answerer and reserves `prepend` listeners for decide-or-delegate gates. -`ApprovalRequest` carries the asking `agent` (routes the question; receives the audit events), the `toolName`, the optional exact `callId`, the asker's human-readable `reason`, and the optional `signal`. The caller owns this input record; `request()` owns its frozen acceptance snapshot. The vocabulary is deliberately self-contained — it names the tool-call by the `CallId` brand from `dsh-llm` and never imports `dsh-tools` — because `dsh-tools` depends on `dsh-user-approval` (the ask routing) and a `ToolCallView` import would close a package cycle. It deliberately does NOT carry tool arguments: a UI answerer attaches the prompt to the already-streamed tool call via `callId` instead of re-rendering the call. +`ApprovalRequest` carries the asking `agent` (routes the question; receives the audit events), the `toolName`, the optional exact `callId`, the asker's human-readable `reason`, and the optional `signal`. The caller retains ownership and honors the readonly contract for the duration of `request()`. The vocabulary is deliberately self-contained — it names the tool-call by the `CallId` brand from `dsh-llm` and never imports `dsh-tools` — because `dsh-tools` depends on `dsh-user-approval` (the ask routing) and a `ToolCallView` import would close a package cycle. It deliberately does NOT carry tool arguments: a UI answerer attaches the prompt to the already-streamed tool call via `callId` instead of re-rendering the call. #### Ask routing in dsh-tools @@ -79,7 +79,7 @@ One package, no cycles: `dsh-user-approval` peers on `cordis`, `dsh-session` (ev ### Testing -Unit tier: the service's outcome branches (fail-closed default, first-wins slot, delegation, containment, rogue-value normalization, abort-before and abort-during with late-answer discard, fresh ids, fiber-disposal degradation), accepted-request mutation across agent scopes, post-append observer throws on both audit events, and the policy tier (both values × dispatch/decide, a `'never'` decision unbypassable even by an answerer prepended AFTER the service, audit pair intact) in `dsh-user-approval`; the ask routing matrix (grant dispatches; three non-grant reasons pinned verbatim; unmounted and agent-less degrades; the registry's own exhaustiveness backstop against a non-conforming stand-in) in `dsh-tools`; the answerer (wire shape of the prompt, outcome mapping, unknown-option conservatism, foreign-agent and call-less delegation) driven through a real bridge + scripted client in `dsh-acp`. +Unit tier: the service's outcome branches (fail-closed default, first-wins slot, delegation, containment, rogue-value normalization, abort-before and abort-during with late-answer discard, fresh ids, fiber-disposal degradation), scoped routing, post-append observer throws on both audit events, and the policy tier (both values × dispatch/decide, a `'never'` decision unbypassable even by an answerer prepended AFTER the service, audit pair intact) in `dsh-user-approval`; the ask routing matrix (grant dispatches; three non-grant reasons pinned verbatim; unmounted and agent-less degrades; the registry's own exhaustiveness backstop against a non-conforming stand-in) in `dsh-tools`; the answerer (wire shape of the prompt, outcome mapping, unknown-option conservatism, foreign-agent and call-less delegation) driven through a real bridge + scripted client in `dsh-acp`. Snapshot tier: the harness accepts scripted permission answers (`permissionAnswers` in a scenario's `input.json`, consumed FIFO; an unscripted prompt answers `cancelled`, fail closed). The seam's wire is recorded end to end in the sandbox example's suite: both escalation branches drive `session/request_permission` through this seam over scripted answers (grant and rejection), and the recorded `mode-switching` scenario pins the `'never'` prompt sentence and the policy-switch notice ([the sandbox RFC](2026-07-06-sandbox.md) § Testing). @@ -105,7 +105,7 @@ The implemented contract is pinned by the suites in Testing: - With an ApprovalService and an answerer composed, a hook's `ask` reaches a human and `allowed-once` dispatches the tool; every other outcome denies with its distinct reason. - A `'never'` session auto-rejects every ask without prompting anyone, states the policy in its prompt, and narrates switches (the shared switching mechanics are pinned in [the sandbox RFC](2026-07-06-sandbox.md)). - Every unanswerable path fails closed to `unavailable`: no service, no listener, a foreign or agent-less request, a throwing answerer, a rogue return value, or a dead client connection. -- Every `request()` snapshots its routing identity and lands exactly one `approval/asked`/`approval/decided` pair on that agent's captured log, replayable and invisible to the model transcript; post-append observer failures cannot split the pair. +- Every `request()` routes through its readonly agent identity and lands exactly one `approval/asked`/`approval/decided` pair on that agent's log, replayable and invisible to the model transcript; post-append observer failures cannot split the pair. - Prompts route per-session through the bridge's ownership map; one session's prompt can never reach another session's editor. - A deployment with no ApprovalService emits no approval prompt or approval audit events and denies every `ask` request. diff --git a/docs/rfc/implemented/feature/2026-07-12-subagent-persona-tool-filter-and-depth.md b/docs/rfc/implemented/feature/2026-07-12-subagent-persona-tool-filter-and-depth.md index 9d657f7bd4..5b6eeb4ccb 100644 --- a/docs/rfc/implemented/feature/2026-07-12-subagent-persona-tool-filter-and-depth.md +++ b/docs/rfc/implemented/feature/2026-07-12-subagent-persona-tool-filter-and-depth.md @@ -41,7 +41,7 @@ Resolution follows these rules: 3. Child-scoped tools are added after global filtering and may shadow an admitted global tool. 4. Reserved `run_code` presentation and other scope-local protocol contributions are outside the global filter. -Configuration fails loudly when a filter is empty or names a tool that is unknown, scope-local, or reserved at setup time. This catches misspellings and prevents configuration from appearing effective when it cannot affect the named entry. +Configuration fails loudly when a filter supplies neither `allow` nor `deny`, or names something outside the current global restrictable set, including a scope-local-only or reserved name. `allow: []` is valid and deliberately hides every global tool. These checks catch misspellings and prevent configuration from appearing effective when it cannot affect the named entry. The global registry remains live. A deny-only filter admits a later global name unless it explicitly denies that name; an allow-list excludes a later global name unless it explicitly allows that name. Removing a global tool removes it from every resolved view. These semantics preserve hot registration while making the difference between allow and deny explicit. diff --git a/packages/AGENTS.md b/packages/AGENTS.md index ac26b926f7..4b7bed4d1c 100644 --- a/packages/AGENTS.md +++ b/packages/AGENTS.md @@ -5,6 +5,8 @@ This directory contains all `@deepseek-ai/dsh-*` harness packages. Repo-wide con - **Plugin export shape — namespace OR default, never both.** A *service* package exports the service class as `export default` (the Loader instantiates it). A *function/namespace* plugin exports `name` / `inject` / `Config` / `apply` as separate named exports and **must NOT add `export default`** — the cordis Loader's `unwrapExports` does `exports.default ?? exports`, so a stray default export collapses the module to the bare `apply` function and silently discards the `inject`/`name`/`Config` namespace, leaving the plugin with no injected services (it then throws `cannot get property … without inject` at load). See [docs/postmortem/0001](../docs/postmortem/0001-acp-default-export-drops-inject.md). - **Read an optional (non-injected) service via `ctx.get(name)`, not `ctx.`.** For a service a plugin reads opportunistically but deliberately leaves out of `static inject` (e.g. `AgentLoop` reading `sessionPersistence`), the `ctx.` property proxy resolves by an ancestor-only fiber walk that throws when the call arrives through a foreign traceable shadow (the service lives on a sibling fiber). `ctx.get(name)` is the topology-independent global-store lookup, strict by default (an inactive/absent backend reads as `undefined` — prefer it over the `ctx.get(name, false)` overload, which also skips the active-state check). Services that ARE in `static inject` resolve fine via `ctx.`. See [docs/postmortem/0001](../docs/postmortem/0001-acp-default-export-drops-inject.md). - **A plugin shipped via `cordis.yml` needs at least one test through the REAL Loader/export path** — hand-built `ctx.plugin({...})` mounts bypass `unwrapExports` and cannot catch a broken export shape. Full testing policy (tiers, with-key generosity, real-entry-path guards): [docs/testing.md](../docs/testing.md). +- **Typed same-process service and plugin calls are contracts, not serialization boundaries.** Prefer readonly borrowed values; materialize or defensively validate only at parser/config, queued, model/tool JSON, durable/file, worker, process, or wire boundaries. +- **Represent one asynchronous operation with one lifecycle controller or transaction.** Separate readiness, cancellation, disposal, reservation, or sentinel state requires an independent owner or settlement boundary; otherwise fold it while preserving rollback, callback containment, and quiescence. Naming notes: diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts index 88b89f5d3b..3ee6d1081f 100644 --- a/packages/cordis/tool-cordis/src/api-catalog.ts +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -54,7 +54,7 @@ export interface TypeApiEntry { export const SERVICE_API: readonly ServiceApiEntry[] = [ { key: 'agentLoop', - summary: 'The agent-loop plugin (`ctx.agentLoop`): creates ReactLoopAgents, runs their loops, and registers them in `ctx.agents`.', + summary: 'Concrete ReactLoopAgent factory and driver service.', methods: [ 'create(id: AgentId, options: AgentOptions = {}, meta: Pick = {}): ReactLoopAgent', 'async createAgent(ownerCtx: Context, options: CreateAgentOptions): Promise', @@ -65,12 +65,11 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ key: 'agents', summary: 'Agent registry (`ctx.agents`): tracks live agents so UI, hook, and orchestrator plugins can find them without depending on the concrete loop package.', methods: [ - 'reserve(id: AgentId): AgentRegistrationReservation', 'setFactory(factory: AgentFactory): () => Promise | void', 'async create(options: CreateAgentOptions): Promise', 'async resume(options: ResumeAgentOptions): Promise', 'register(agent: Agent): () => Promise | void', - 'enter(agent: Agent, reservation?: AgentRegistrationReservation): () => void', + 'enter(agent: Agent): () => void', 'announce(agent: Agent): void', 'get(id: AgentId): Agent | undefined', 'list(): Agent[]', @@ -156,10 +155,9 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ key: 'sessions', summary: 'In-memory session store (`ctx.sessions`).', methods: [ - 'reserve(id: SessionId): SessionRegistrationReservation', 'create(id?: SessionId, options?: CreateSessionOptions): Session', 'prepare(id?: SessionId, options?: CreateSessionOptions): Session', - 'enter(session: Session, reservation?: SessionRegistrationReservation): () => void', + 'enter(session: Session): () => void', 'announce(session: Session): void', 'async flush(session: Session): Promise', 'get(id: SessionId): Session | undefined', @@ -179,22 +177,21 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ }, { key: 'subagents', - summary: 'The `subagents` service: a registry of named SubagentProviders and a capability-checked start surface.', + summary: 'Named provider registry and capability-checked start surface.', methods: [ 'registerProvider(provider: SubagentProvider): () => Promise | void', 'getProvider(name: string): SubagentProvider | undefined', 'list(): string[]', - 'start(name: string, request: SubagentStartRequest): SubagentRun', + 'async start(name: string, request: SubagentStartRequest): Promise', ], }, { key: 'systemPrompt', - summary: 'Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, named prompt variables, and owner-final contribution protections; the agent loop calls `assemble(context)` once per step.', + summary: 'Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, named prompt variables, and owner-final contributions; the agent loop calls `assemble(context)` once per step.', methods: [ 'section(section: PromptSection): () => Promise | void', 'tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void', 'variable(name: string, provider: (context: AssembleContext) => string | undefined): () => Promise | void', - 'protect(protection: PromptProtection): () => Promise | void', 'async assemble(context: AssembleContext = {}): Promise', ], }, @@ -205,10 +202,8 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ 'register(definition: ToolDefinition): () => Promise | void', 'restrict(filter: ToolRestriction): () => Promise | void', 'guard(guard: ToolGuard): () => Promise | void', - 'visible(scope?: ScopeKey): ToolDefinition[]', 'get(name: string, scope?: ScopeKey): ToolDefinition | undefined', 'schemas(scope?: ScopeKey): ToolSchema[]', - 'knownNames(scope?: ScopeKey): string[]', 'async execute(exec: ToolExecutionInput): Promise', ], }, @@ -389,25 +384,25 @@ export const EVENT_API: readonly EventApiEntry[] = [ name: 'subagent/end', mode: 'emit', signature: '\'subagent/end\'(this: Scoped, info: SubagentRunEndInfo): void', - summary: 'A started subagent run settled — emitted when SubagentRun.result resolves (any stop reason) or rejects (reported as `error`).', + summary: 'A ready child settled.', }, { name: 'subagent/provider-added', mode: 'emit', signature: '\'subagent/provider-added\'(provider: SubagentProvider): void', - summary: 'A provider became resolvable in the SubagentService registry.', + summary: 'A provider became resolvable in the registry.', }, { name: 'subagent/provider-removed', mode: 'emit', signature: '\'subagent/provider-removed\'(name: string): void', - summary: 'A provider left the registry (its plugin\'s fiber was disposed — an unload or an HMR reload).', + summary: 'A provider left the registry.', }, { name: 'subagent/start', mode: 'emit', signature: '\'subagent/start\'(this: Scoped, info: SubagentRunInfo): void', - summary: 'A subagent run started — emitted only after SubagentRun.started fulfills, when the provider has established a live child.', + summary: 'A provider established a ready child.', }, { name: 'system-prompt/assemble', @@ -419,7 +414,7 @@ export const EVENT_API: readonly EventApiEntry[] = [ name: 'system-prompt/change', mode: 'emit', signature: '\'system-prompt/change\'(): void', - summary: 'A section, tool provider, variable provider, or protection was registered or unregistered (the assembly inputs changed — possibly for one scope only).', + summary: 'A section, tool provider, or variable provider was registered or unregistered (the assembly inputs changed — possibly for one scope only).', }, { name: 'tools/change', @@ -436,7 +431,7 @@ export const EVENT_API: readonly EventApiEntry[] = [ { name: 'tools/post-execute', mode: 'waterfall', - signature: '\'tools/post-execute\'(this: Scoped, exec: ToolExecution, result: ToolExecutionResult, next: () => Promise): Promise', + signature: '\'tools/post-execute\'(this: Scoped, exec: ToolExecution, result: Readonly, next: () => Promise): Promise', summary: 'Waterfall AFTER a tool runs — where hook plugins inspect the result and accept it (optionally REPLACING the model-facing content, and/or attaching `additionalContext` for the next request) or block it with corrective `feedback` (Claude Code\'s `PostToolUse`).', }, { @@ -511,10 +506,6 @@ export const TYPE_API: readonly TypeApiEntry[] = [ name: 'AgentOptions', declaration: 'export interface AgentOptions {\n model?: string;\n}', }, - { - name: 'AgentRegistrationReservation', - declaration: 'export interface AgentRegistrationReservation {\n readonly id: AgentId;\n release(): void;\n}', - }, { name: 'AgentStatus', declaration: 'export type AgentStatus = \'idle\' | \'running\' | \'disposed\';', @@ -525,7 +516,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'ApprovalRequest', - declaration: 'export interface ApprovalRequest {\n agent: Agent;\n toolName: string;\n callId?: CallId;\n reason?: string;\n signal?: AbortSignal;\n}', + declaration: 'export interface ApprovalRequest {\n readonly agent: Agent;\n readonly toolName: string;\n readonly callId?: CallId;\n readonly reason?: string;\n readonly signal?: AbortSignal;\n}', }, { name: 'AskUserQuestionAnswer', @@ -653,11 +644,11 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'CreateAgentOptions', - declaration: 'export interface CreateAgentOptions {\n agentId: AgentId;\n sessionId: SessionId;\n meta?: {\n cwd?: string;\n parentSession?: SessionId;\n seedLength?: number;\n };\n seed?: SessionEvent[];\n agentOptions?: AgentOptions;\n setup?: (agentCtx: Context) => Promise | void;\n}', + declaration: 'export interface CreateAgentOptions {\n readonly agentId: AgentId;\n readonly sessionId: SessionId;\n readonly meta?: {\n readonly cwd?: string;\n readonly parentSession?: SessionId;\n readonly seedLength?: number;\n };\n readonly seed?: readonly SessionEvent[];\n readonly agentOptions?: AgentOptions;\n readonly signal?: AbortSignal;\n readonly setup?: (agentCtx: Context) => Promise | void;\n}', }, { name: 'CreateSessionOptions', - declaration: 'export interface CreateSessionOptions {\n seed?: SessionEvent[];\n meta?: {\n cwd?: string;\n parentSession?: SessionId;\n createdAt?: number;\n seedLength?: number;\n };\n}', + declaration: 'export interface CreateSessionOptions {\n readonly seed?: readonly SessionEvent[];\n readonly meta?: {\n readonly cwd?: string;\n readonly parentSession?: SessionId;\n readonly createdAt?: number;\n readonly seedLength?: number;\n };\n}', }, { name: 'DiffCallView', @@ -755,13 +746,9 @@ export const TYPE_API: readonly TypeApiEntry[] = [ name: 'PromptAssembly', declaration: 'export interface PromptAssembly {\n sections: AssembledSection[];\n tools: ToolSchema[];\n variables: Record;\n}', }, - { - name: 'PromptProtection', - declaration: 'export interface PromptProtection {\n sections?: readonly string[];\n tools?: readonly string[];\n}', - }, { name: 'PromptSection', - declaration: 'export interface PromptSection {\n name: string;\n order: number;\n text: string | ((context: AssembleContext) => string);\n}', + declaration: 'export interface PromptSection {\n readonly name: string;\n readonly order: number;\n readonly text: string | ((context: AssembleContext) => string);\n readonly ownerFinal?: boolean;\n}', }, { name: 'ReasoningBlock', @@ -769,7 +756,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'ResumeAgentOptions', - declaration: 'export interface ResumeAgentOptions {\n agentId: AgentId;\n resumeSessionId: SessionId;\n agentOptions?: AgentOptions;\n setup?: (agentCtx: Context) => Promise | void;\n}', + declaration: 'export interface ResumeAgentOptions {\n readonly agentId: AgentId;\n readonly resumeSessionId: SessionId;\n readonly agentOptions?: AgentOptions;\n readonly signal?: AbortSignal;\n readonly setup?: (agentCtx: Context) => Promise | void;\n}', }, { name: 'SandboxEnforcement', @@ -809,23 +796,19 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'SessionHeader', - declaration: 'export interface SessionHeader {\n version: number;\n id: SessionId;\n createdAt: number;\n cwd?: string;\n parentSession?: SessionId;\n seedLength?: number;\n}', + declaration: 'export interface SessionHeader {\n readonly version: number;\n readonly id: SessionId;\n readonly createdAt: number;\n readonly cwd?: string;\n readonly parentSession?: SessionId;\n readonly seedLength?: number;\n}', }, { name: 'SessionId', declaration: 'export type SessionId = Branded<\'SessionId\'>;', }, - { - name: 'SessionRegistrationReservation', - declaration: 'export interface SessionRegistrationReservation {\n readonly id: SessionId;\n prepare(options?: CreateSessionOptions): Session;\n release(): void;\n}', - }, { name: 'SkillCandidate', - declaration: 'export interface SkillCandidate extends SkillSummary {\n rank: number;\n locator: unknown;\n path?: string;\n metadata?: Record;\n}', + declaration: 'export interface SkillCandidate extends SkillSummary {\n readonly rank: number;\n readonly locator: unknown;\n readonly path?: string;\n readonly metadata?: Readonly>;\n}', }, { name: 'SkillDefinition', - declaration: 'export interface SkillDefinition extends SkillSummary {\n content: string;\n path?: string;\n metadata?: Record;\n}', + declaration: 'export interface SkillDefinition extends SkillSummary {\n readonly content: string;\n readonly path?: string;\n readonly metadata?: Readonly>;\n}', }, { name: 'SkillLookupOptions', @@ -833,15 +816,15 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'SkillProvider', - declaration: 'export interface SkillProvider {\n name: string;\n list(options: SkillLookupOptions): Promise;\n get(candidate: SkillCandidate, options: SkillLookupOptions): Promise;\n}', + declaration: 'export interface SkillProvider {\n readonly name: string;\n readonly list: (options: SkillLookupOptions) => Promise;\n readonly get: (candidate: SkillCandidate, options: SkillLookupOptions) => Promise;\n}', }, { name: 'SkillRegistration', - declaration: 'export type SkillRegistration = Omit & {\n provider?: string;\n};', + declaration: 'export type SkillRegistration = Omit & {\n readonly provider?: string;\n};', }, { name: 'SkillResourceBase', - declaration: 'export type SkillResourceBase = {\n kind: \'directory\';\n path: string;\n} | {\n kind: \'url\';\n url: string;\n} | {\n kind: \'opaque\';\n description: string;\n};', + declaration: 'export type SkillResourceBase = {\n readonly kind: \'directory\';\n readonly path: string;\n} | {\n readonly kind: \'url\';\n readonly url: string;\n} | {\n readonly kind: \'opaque\';\n readonly description: string;\n};', }, { name: 'SkillSource', @@ -849,7 +832,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'SkillSummary', - declaration: 'export interface SkillSummary {\n name: string;\n description: string;\n whenToUse?: string;\n disableModelInvocation?: boolean;\n source: SkillSource;\n provider: string;\n resourceBase?: SkillResourceBase;\n}', + declaration: 'export interface SkillSummary {\n readonly name: string;\n readonly description: string;\n readonly whenToUse?: string;\n readonly disableModelInvocation?: boolean;\n readonly source: SkillSource;\n readonly provider: string;\n readonly resourceBase?: SkillResourceBase;\n}', }, { name: 'StreamChunk', @@ -873,23 +856,23 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'SubagentCapabilities', - declaration: 'export interface SubagentCapabilities {\n outputSchema: boolean;\n depthLimit: boolean;\n toolFilter: boolean;\n persona: boolean;\n}', + declaration: 'export interface SubagentCapabilities {\n readonly outputSchema: boolean;\n readonly depthLimit: boolean;\n readonly toolFilter: boolean;\n readonly persona: boolean;\n}', }, { name: 'SubagentProvider', - declaration: 'export interface SubagentProvider {\n readonly name: string;\n readonly capabilities: SubagentCapabilities;\n readonly inheritsParentContext: boolean;\n start(request: SubagentStartRequest): SubagentRun;\n}', + declaration: 'export interface SubagentProvider {\n readonly name: string;\n readonly capabilities: SubagentCapabilities;\n readonly inheritsParentContext: boolean;\n start(request: SubagentStartRequest): Promise;\n}', }, { name: 'SubagentResult', - declaration: 'export interface SubagentResult {\n output: ContentBlock[];\n structured?: unknown;\n stopReason: SubagentStopReason;\n}', + declaration: 'export interface SubagentResult {\n readonly output: ContentBlock[];\n readonly structured?: unknown;\n readonly stopReason: SubagentStopReason;\n}', }, { name: 'SubagentRun', - declaration: 'export interface SubagentRun {\n readonly id: AgentId;\n readonly started: Promise;\n readonly result: Promise;\n cancel(reason?: string): void;\n dispose(): Promise;\n sendMessage?(content: ContentBlock[]): void;\n resume?(content: ContentBlock[]): SubagentRun;\n}', + declaration: 'export interface SubagentRun {\n readonly id: AgentId;\n readonly result: Promise;\n dispose(): Promise;\n sendMessage?(content: ContentBlock[]): void;\n resume?(content: ContentBlock[]): Promise;\n}', }, { name: 'SubagentStartRequest', - declaration: 'export interface SubagentStartRequest {\n prompt: ContentBlock[];\n parent: Agent;\n signal?: AbortSignal;\n agentOptions?: AgentOptions;\n outputSchema?: StructuredOutputSchema;\n maxDepth?: number;\n toolFilter?: {\n allow?: string[];\n deny?: string[];\n };\n persona?: string;\n}', + declaration: 'export interface SubagentStartRequest {\n readonly prompt: ContentBlock[];\n readonly parent: Agent;\n readonly signal: AbortSignal;\n readonly agentOptions?: AgentOptions;\n readonly outputSchema?: StructuredOutputSchema;\n readonly maxDepth?: number;\n readonly toolFilter?: ToolRestriction;\n readonly persona?: string;\n}', }, { name: 'SubagentStopReason', @@ -937,7 +920,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'ToolDefinition', - declaration: 'export interface ToolDefinition extends ToolSchema {\n execute(args: unknown, exec: ToolExecution): Promise;\n timeoutMs?: number;\n presentCall?(args: unknown): ToolCallView | undefined;\n presentResult?(args: unknown, result: ToolResult): ToolResultView | undefined;\n}', + declaration: 'export interface ToolDefinition extends ToolSchema {\n execute(args: unknown, exec: ToolExecution): Promise;\n timeoutMs?: number;\n readonly ownerFinal?: boolean;\n presentCall?(args: unknown): ToolCallView | undefined;\n presentResult?(args: unknown, result: ToolResult): ToolResultView | undefined;\n}', }, { name: 'ToolErrorInfo', @@ -961,7 +944,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'ToolExecutionToken', - declaration: 'export interface ToolExecutionToken {\n readonly [toolExecutionTokenBrand]: true;\n}', + declaration: 'export type ToolExecutionToken = symbol & {\n readonly [toolExecutionTokenBrand]: true;\n};', }, { name: 'ToolGuard', @@ -969,11 +952,11 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'ToolProviderResult', - declaration: 'export interface ToolProviderResult {\n schemas: ToolSchema[];\n knownNames?: readonly string[];\n}', + declaration: 'export interface ToolProviderResult {\n readonly schemas: readonly ToolSchema[];\n readonly knownNames?: readonly string[];\n readonly ownerFinalNames?: readonly string[];\n}', }, { name: 'ToolRestriction', - declaration: 'export interface ToolRestriction {\n allow?: string[];\n deny?: string[];\n}', + declaration: 'export interface ToolRestriction {\n readonly allow?: readonly string[];\n readonly deny?: readonly string[];\n}', }, { name: 'ToolResult', diff --git a/packages/core/agent-loop/tests/loop.spec.ts b/packages/core/agent-loop/tests/loop.spec.ts index f1c3e9af9d..71be5b339e 100644 --- a/packages/core/agent-loop/tests/loop.spec.ts +++ b/packages/core/agent-loop/tests/loop.spec.ts @@ -272,7 +272,7 @@ describe('agent loop', () => { expect(result.data.meta).toBeUndefined() expect(result.data.content).toEqual([{ type: 'text', - text: 'Error: tools/execute must return a losslessly JSON-serializable ToolExecutionResult', + text: 'Error: tool result must be losslessly JSON-serializable', }]) } // The normalized failure was durably logged and fed back to the model; the diff --git a/packages/subagent/subagent/src/index.ts b/packages/subagent/subagent/src/index.ts index 559825d404..6332a0a458 100644 --- a/packages/subagent/subagent/src/index.ts +++ b/packages/subagent/subagent/src/index.ts @@ -73,14 +73,17 @@ declare module 'cordis' { /** * A provider established a ready child. For in-process providers, * `ctx.agents.get(info.id)` resolves during this notification. - * Scope-filtered by the delegating parent and paired with `subagent/end`. + * Scope-filtered dispatch keys the carrier by the delegating parent, so a + * parent-scoped listener observes only its own delegations. Paired with + * `subagent/end`. * @param info - the provider and ready child identity. * @mode emit */ 'subagent/start'(this: Scoped, info: SubagentRunInfo): void /** - * A ready child settled. Scope-filtered by the delegating parent and - * paired with `subagent/start`. + * A ready child settled. Scope-filtered dispatch uses the same delegating + * parent carrier as `subagent/start`, so the lifecycle pair reaches the + * same scoped audience. * @param info - the run identity and terminal outcome. * @mode emit */ diff --git a/scripts/gen-cordis-catalog.ts b/scripts/gen-cordis-catalog.ts index ae1fa8d170..68139e9ff8 100644 --- a/scripts/gen-cordis-catalog.ts +++ b/scripts/gen-cordis-catalog.ts @@ -81,7 +81,6 @@ const FENCE = 'ts cordis-catalog' */ export const LINK_MAP: Record = { Agent: 'core.md', - AgentRegistrationReservation: 'core.md', ContentBlock: 'core.md', Message: 'core.md', MessageSource: 'core.md', @@ -89,7 +88,6 @@ export const LINK_MAP: Record = { LlmCallConfig: 'core.md', SessionEvent: 'core.md', SessionStartSource: 'core.md', - SessionRegistrationReservation: 'session.md', StreamChunk: 'llm-streaming.md', TurnEndReason: 'session.md', ToolDefinition: 'tools.md', diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index c36a50c244..c4c8186f38 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -588,12 +588,12 @@ function collectEventRelations(): Map { if (method === 'on') { const event = eventArg(node.arguments, method) if (event) ensure(event).listeners.add(leaf) - } else if (method === 'emit' || method === 'parallel' || method === 'serial' || method === 'strictSerial' || method === 'waterfall') { + } else if (method === 'emit' || method === 'parallel' || method === 'serial' || method === 'waterfall') { const event = eventArg(node.arguments, method) if (event) { const relation = ensure(event) const methods = relation.dispatchers.get(leaf) ?? new Set() - methods.add(method === 'strictSerial' ? 'strictSerial (serial)' : method) + methods.add(method) relation.dispatchers.set(leaf, methods) } } diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index 62111d1551..a219ea1b1d 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -11,7 +11,6 @@ { "doc": "docs/core-data-structures/core.md", "symbol": "LlmCallConfig", "source": "packages/llm/llm/src/call-config.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "SessionEvent", "source": "packages/core/session/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "Agent", "source": "packages/core/agent/src/types.ts" }, - { "doc": "docs/core-data-structures/core.md", "symbol": "AgentRegistrationReservation", "source": "packages/core/agent/src/index.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "HookContext", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "PromptDecision", "source": "packages/core/agent/src/types.ts" }, { "doc": "docs/core-data-structures/core.md", "symbol": "ContinuationDecision", "source": "packages/core/agent/src/types.ts" }, @@ -23,8 +22,8 @@ { "doc": "docs/core-data-structures/scope.md", "symbol": "Scope", "source": "packages/core/scope/src/index.ts" }, { "doc": "docs/core-data-structures/system-prompt.md", "symbol": "AssembleContext", "source": "packages/core/system-prompt/src/index.ts" }, + { "doc": "docs/core-data-structures/system-prompt.md", "symbol": "PromptSection", "source": "packages/core/system-prompt/src/index.ts" }, { "doc": "docs/core-data-structures/system-prompt.md", "symbol": "ToolProviderResult", "source": "packages/core/system-prompt/src/index.ts" }, - { "doc": "docs/core-data-structures/system-prompt.md", "symbol": "PromptProtection", "source": "packages/core/system-prompt/src/index.ts" }, { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "StreamChunk", "source": "packages/llm/llm/src/types.ts" }, { "doc": "docs/core-data-structures/llm-streaming.md", "symbol": "TokenUsage", "source": "packages/llm/llm/src/types.ts" }, @@ -41,7 +40,6 @@ { "doc": "docs/core-data-structures/session.md", "symbol": "SurfaceOp", "source": "packages/core/session/src/types.ts" }, { "doc": "docs/core-data-structures/session.md", "symbol": "SurfaceIntent", "source": "packages/core/session/src/types.ts" }, { "doc": "docs/core-data-structures/session.md", "symbol": "SurfaceNode", "source": "packages/core/session/src/surface.ts" }, - { "doc": "docs/core-data-structures/session.md", "symbol": "SessionRegistrationReservation", "source": "packages/core/session/src/index.ts" }, { "doc": "docs/core-data-structures/persistence.md", "symbol": "SessionHeader", "source": "packages/core/session/src/types.ts" }, { "doc": "docs/core-data-structures/persistence.md", "symbol": "CreateSessionOptions", "source": "packages/core/session/src/types.ts" }, @@ -54,6 +52,7 @@ { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolExecutionInput", "source": "packages/core/tools/src/index.ts" }, { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolExecution", "source": "packages/core/tools/src/index.ts" }, { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolGuard", "source": "packages/core/tools/src/index.ts" }, + { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolRestriction", "source": "packages/core/tools/src/index.ts" }, { "doc": "docs/core-data-structures/tools.md", "symbol": "ToolExecutionResult", "source": "packages/core/tools/src/index.ts" }, { "doc": "docs/core-data-structures/tools.md", "symbol": "PreToolDecision", "source": "packages/core/tools/src/index.ts" }, { "doc": "docs/core-data-structures/tools.md", "symbol": "PostToolDecision", "source": "packages/core/tools/src/index.ts" }, From 738054562d7bee3999ff2aee9fd8832597ebbd2f Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 23:15:07 +0800 Subject: [PATCH 222/232] fix: complete scoped lifecycle simplification --- packages/core/agent-loop/src/index.ts | 30 +++---- packages/core/agent-loop/tests/agent.spec.ts | 14 +++ packages/core/agent-loop/tests/resume.spec.ts | 22 +++++ .../agent-loop/tests/scope-lifecycle.spec.ts | 90 +++++++++++++++++++ packages/core/agent/src/index.ts | 1 + packages/core/session/src/index.ts | 1 + packages/core/tools/src/index.ts | 3 +- packages/core/tools/tests/scoped.spec.ts | 15 ++++ packages/skill/skill/src/index.ts | 1 - packages/subagent/subagent-acp/src/run.ts | 5 ++ .../subagent-acp/tests/subagent-acp.spec.ts | 17 +++- .../subagent-mock/tests/subagent-mock.spec.ts | 20 +++++ packages/ui/user-approval/src/index.ts | 3 - .../ui/user-approval/tests/approval.spec.ts | 20 ----- .../workflow-workerthread/src/host.ts | 8 +- .../tests/workflow-workerthread.spec.ts | 61 +++++++++++++ 16 files changed, 261 insertions(+), 50 deletions(-) diff --git a/packages/core/agent-loop/src/index.ts b/packages/core/agent-loop/src/index.ts index 3f717378d2..4ad4779176 100644 --- a/packages/core/agent-loop/src/index.ts +++ b/packages/core/agent-loop/src/index.ts @@ -54,7 +54,6 @@ class FactoryOwnership { } track(transaction: AgentCreationTransaction): () => void { - if (!this.isActive()) throw new Error('agent loop is not active') this.transactions.add(transaction) return () => { this.transactions.delete(transaction) } } @@ -62,12 +61,9 @@ class FactoryOwnership { async dispose(): Promise { this.accepting = false const reason = new Error('agent loop is not active') - const results = await Promise.allSettled( + await Promise.all( [...this.transactions].map(transaction => transaction.disposeForFactory(reason)), ) - const errors = results.flatMap(result => result.status === 'rejected' ? [result.reason as unknown] : []) - if (errors.length === 1) throw errors[0] - if (errors.length > 1) throw new AggregateError(errors, 'agent loop transaction disposal failed') } } @@ -101,8 +97,6 @@ class AgentCreationTransaction { private detachAgent: (() => void) | undefined private publishing = false private cleanupTask: Promise | undefined - private finished = false - private wrapperFinished = false private ownerFollowing = true private readonly ownerDispose: () => Promise | void private readonly untrackFactory: () => void @@ -120,20 +114,17 @@ class AgentCreationTransaction { ownerCtx.fiber.assertActive() this.ownerAgent = ownerCtx.agent this.ownerFiber = ownerCtx.fiber + if (!ownership.isActive()) throw new Error('agent loop is not active') + this.ownerDispose = ownerCtx.effect(() => () => { + if (!this.ownerFollowing) return + return this.dispose(new Error(`agent "${id}" setup aborted: owner disposed during setup`)) + }, `agentLoop.owner(${id})`) this.untrackFactory = ownership.track(this) - try { - this.ownerDispose = ownerCtx.effect(() => () => { - if (!this.ownerFollowing) return - return this.dispose(new Error(`agent "${id}" setup aborted: owner disposed during setup`)) - }, `agentLoop.owner(${id})`) - } catch (error: unknown) { - this.untrackFactory() - throw error - } if (signal === undefined) { this.abortListener = undefined } else { this.abortListener = () => { + /* v8 ignore next 3 -- transaction teardown contains callback/driver failures; rejection is a future-drift backstop. */ void this.dispose(signalAbortError(id, signal)).catch((error: unknown) => { this.loopCtx.logger.error(error) }) @@ -168,6 +159,7 @@ class AgentCreationTransaction { return await Promise.race([ Promise.resolve(operation), this.deactivation.promise.then(() => { + /* v8 ignore next -- deactivate() assigns failure before resolving deactivation. */ throw this.failure ?? new Error(`agent "${this.id}" creation deactivated`) }), ]) @@ -229,9 +221,11 @@ class AgentCreationTransaction { publish(source: SessionStartSource): AgentHandle { this.assertActive() const driver = this.driver + /* v8 ignore next -- publish() is private and every caller invokes prepare() first. */ if (driver === undefined) throw new Error(`agent "${this.id}" is not prepared`) const agent = driver.agent const session = this.session + /* v8 ignore next -- prepare() assigns the session before it can produce the driver above. */ if (session === undefined) throw new Error(`agent "${this.id}" has no prepared session`) this.publishing = true try { @@ -274,8 +268,6 @@ class AgentCreationTransaction { /** Complete ownership bookkeeping after every resource reached quiescence. */ private finish(): void { - if (this.finished) return - this.finished = true this.untrackFactory() this.ownerFollowing = false void this.ownerDispose() @@ -310,8 +302,6 @@ class AgentCreationTransaction { /** Mark the public create/resume continuation settled and detach its creation-only signal. */ finishWrapper(): void { - if (this.wrapperFinished) return - this.wrapperFinished = true if (this.signal !== undefined && this.abortListener !== undefined) { this.signal.removeEventListener('abort', this.abortListener) } diff --git a/packages/core/agent-loop/tests/agent.spec.ts b/packages/core/agent-loop/tests/agent.spec.ts index 95b5440fe1..7f65bbc5f3 100644 --- a/packages/core/agent-loop/tests/agent.spec.ts +++ b/packages/core/agent-loop/tests/agent.spec.ts @@ -49,6 +49,20 @@ function send(agent: ReactLoopAgent, text: string) { } describe('ReactLoopAgent', () => { + it('rejects access before context binding and a second driver for one session', async () => { + const ctx = new Context() + await ctx.plugin(SessionStore) + const session = ctx.sessions.create(SessionId('exclusive-driver')) + const prepared = prepareReactLoopAgent(ctx, AgentId('first-driver'), { model: 'mock' }, session) + + expect(() => prepared.agent.ctx).toThrow('context is not bound') + expect(() => prepareReactLoopAgent(ctx, AgentId('second-driver'), { model: 'mock' }, session)) + .toThrow('already has a concrete agent driver') + + await prepared.dispose() + await ctx.fiber.dispose() + }) + it('borrows caller options and binds its scoped context exactly once', async () => { const ctx = await harness(new MockAdapter([textResponse('unused')])) const options = { model: 'mock' } diff --git a/packages/core/agent-loop/tests/resume.spec.ts b/packages/core/agent-loop/tests/resume.spec.ts index 2c9fc78177..93605008ec 100644 --- a/packages/core/agent-loop/tests/resume.spec.ts +++ b/packages/core/agent-loop/tests/resume.spec.ts @@ -69,7 +69,29 @@ async function promptly(task: Promise): Promise { } } +/** Throw an arbitrary callback value to exercise the public unknown-error boundary. */ +function throwUnknown(value: unknown): never { + throw value +} + describe('the session-persistence RFC: AgentLoop factory create/resume', () => { + it('normalizes a non-Error resume publication failure for rollback and rethrows it', async () => { + const sessionId = SessionId('unknown-resume-failure-s') + const root = await persistSession(sessionId) + const ctx = await mountPersistentHarness(root, new MockAdapter([textResponse('next')])) + const failure = { source: 'resume' } + ctx.on('session/created', () => throwUnknown(failure)) + + await expect(ctx.agents.resume({ + agentId: AgentId('unknown-resume-failure'), + resumeSessionId: sessionId, + })).rejects.toBe(failure) + + expect(ctx.agents.get(AgentId('unknown-resume-failure'))).toBeUndefined() + expect(ctx.sessions.get(sessionId)).toBeUndefined() + await ctx.fiber.dispose() + }) + it('createAgent uses the caller-supplied sessionId (not ${id}-session)', async () => { const adapter = new MockAdapter([textResponse('hi')]) const { ctx } = await persistentHarness(adapter) diff --git a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts index 65ebbff8dd..2c478ad1f0 100644 --- a/packages/core/agent-loop/tests/scope-lifecycle.spec.ts +++ b/packages/core/agent-loop/tests/scope-lifecycle.spec.ts @@ -40,6 +40,11 @@ function waitForIdle(ctx: Context, agent: ReactLoopAgent): Promise { const text = (t: string): ContentBlock[] => [{ type: 'text', text: t }] +/** Throw an arbitrary callback value to exercise the public unknown-error boundary. */ +function throwUnknown(value: unknown): never { + throw value +} + /** Invoke the exact lifecycle effect to exercise same-stack reentrant teardown. */ function disposeCurrentLifecycle(ownerCtx: Context): void { const lifecycle = [...ownerCtx.fiber._disposables] @@ -52,6 +57,91 @@ function disposeCurrentLifecycle(ownerCtx: Context): void { } describe('agent scope lifecycle', () => { + it('rejects an already-aborted creation signal before publishing either identity', async () => { + const ctx = await harness() + const reason = new Error('cancelled before creation') + const controller = new AbortController() + controller.abort(reason) + + await expect(ctx.agents.create({ + agentId: AgentId('pre-aborted'), + sessionId: SessionId('pre-aborted-s'), + signal: controller.signal, + })).rejects.toBe(reason) + + expect(ctx.agents.get(AgentId('pre-aborted'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('pre-aborted-s'))).toBeUndefined() + + const valueController = new AbortController() + valueController.abort('plain cancellation reason') + await expect(ctx.agents.create({ + agentId: AgentId('pre-aborted-value'), + sessionId: SessionId('pre-aborted-value-s'), + signal: valueController.signal, + })).rejects.toMatchObject({ + message: 'agent "pre-aborted-value" creation aborted', + cause: 'plain cancellation reason', + }) + + expect(ctx.agents.get(AgentId('pre-aborted-value'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('pre-aborted-value-s'))).toBeUndefined() + await ctx.fiber.dispose() + }) + + it('joins cleanup when an abort lands reentrantly during scope preparation', async () => { + const ctx = await harness() + const reason = new Error('cancelled while preparing') + const controller = new AbortController() + let aborted = false + ctx.on('internal/plugin', (fiber) => { + if (aborted || fiber.name !== 'scope') return + aborted = true + controller.abort(reason) + }) + + await expect(ctx.agents.create({ + agentId: AgentId('prepare-abort'), + sessionId: SessionId('prepare-abort-s'), + signal: controller.signal, + })).rejects.toBe(reason) + + expect(ctx.agents.get(AgentId('prepare-abort'))).toBeUndefined() + expect(ctx.sessions.get(SessionId('prepare-abort-s'))).toBeUndefined() + await ctx.fiber.dispose() + }) + + it('normalizes non-Error create failures for rollback while rethrowing the original value', async () => { + const ctx = await harness() + let thrown: unknown + ctx.on('session/created', () => { + if (thrown === undefined) return + const value = thrown + thrown = undefined + throwUnknown(value) + }) + + const createFailure = { source: 'create' } + thrown = createFailure + let createCaught: unknown + try { + ctx.agentLoop.create(AgentId('unknown-create')) + } catch (error: unknown) { + createCaught = error + } + expect(createCaught).toBe(createFailure) + + const ownedFailure = { source: 'createAgent' } + thrown = ownedFailure + await expect(ctx.agents.create({ + agentId: AgentId('unknown-owned-create'), + sessionId: SessionId('unknown-owned-create-s'), + })).rejects.toBe(ownedFailure) + + expect(ctx.agents.get(AgentId('unknown-create'))).toBeUndefined() + expect(ctx.agents.get(AgentId('unknown-owned-create'))).toBeUndefined() + await ctx.fiber.dispose() + }) + it('wires agent.ctx: tagged with the agent, DX field set, ctx.agent safe elsewhere', async () => { const ctx = await harness() const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) diff --git a/packages/core/agent/src/index.ts b/packages/core/agent/src/index.ts index 07ec5adb99..42b9d13e35 100644 --- a/packages/core/agent/src/index.ts +++ b/packages/core/agent/src/index.ts @@ -364,6 +364,7 @@ export class AgentRegistry extends Service { entry.detachRequested = false // A stale capability can never delete a later same-id lifecycle. The // captured entry identity is the final boundary. + /* v8 ignore next -- enter() rejects replacement while this single-shot detach capability is live. */ if (this.store.get(entry.id) !== entry) return this.store.delete(entry.id) this.entries.delete(entry.agent) diff --git a/packages/core/session/src/index.ts b/packages/core/session/src/index.ts index b671ad195b..6ce38bbffe 100644 --- a/packages/core/session/src/index.ts +++ b/packages/core/session/src/index.ts @@ -731,6 +731,7 @@ export class SessionStore extends Service { entry.detachRequested = false // A stale capability cannot remove observers or storage belonging to a // later same-id lifecycle. + /* v8 ignore next -- enter() rejects replacement while this single-shot detach capability is live. */ if (this.store.get(entry.id) !== entry) return this.store.delete(entry.id) attachments.delete(entry.session) diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index 3365662458..84a1ec3c51 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -843,7 +843,8 @@ export class ToolRegistry extends Service { // invariant assertion as well as protection against future layer changes. if (this.codeTransport !== undefined) { visible.set(RUN_CODE_NAME, this.codeTransport) - if (this.codeTransport.ownerFinal === true) ownerFinalNames.add(RUN_CODE_NAME) + // createRunCodeTool() owns this internal transport and always marks it owner-final. + ownerFinalNames.add(RUN_CODE_NAME) } return { visible, knownNames, restrictableNames, ownerFinalNames } } diff --git a/packages/core/tools/tests/scoped.spec.ts b/packages/core/tools/tests/scoped.spec.ts index caf3ccb7be..991d420054 100644 --- a/packages/core/tools/tests/scoped.spec.ts +++ b/packages/core/tools/tests/scoped.spec.ts @@ -103,6 +103,21 @@ describe('scoped tool registration', () => { .toThrow(/owner-final tool "reserved" cannot be registered while a scoped shadow exists/) }) + it('restores global and scoped owner-final tools removed by assembly middleware', async () => { + const ctx = await mount() + const { scope, key } = await mintAgentScope(ctx, 'owner-final') + ctx.tools.register({ ...tool('required'), ownerFinal: true }) + scope.ctx.tools.register({ ...tool('scoped-required'), ownerFinal: true }) + ctx.on('system-prompt/assemble', async assembly => ({ + ...assembly, + tools: assembly.tools.filter(schema => !schema.name.includes('required')), + })) + + expect((await ctx.systemPrompt.assemble()).tools.map(schema => schema.name)).toContain('required') + expect((await ctx.systemPrompt.assemble({ scope: key })).tools.map(schema => schema.name)) + .toEqual(expect.arrayContaining(['required', 'scoped-required'])) + }) + it('disposing the scope unwinds its registrations and leaves no residue', async () => { const ctx = await mount() const { scope, key } = await mintAgentScope(ctx, 'a') diff --git a/packages/skill/skill/src/index.ts b/packages/skill/skill/src/index.ts index af4af6f7a2..f2ece2379f 100644 --- a/packages/skill/skill/src/index.ts +++ b/packages/skill/skill/src/index.ts @@ -527,7 +527,6 @@ function waitWithAbort(promise: Promise, signal: AbortSignal | undefined): reject(toError(error)) }, ) - if (signal.aborted) onAbort() }) } diff --git a/packages/subagent/subagent-acp/src/run.ts b/packages/subagent/subagent-acp/src/run.ts index 54a5641d96..5222906a2d 100644 --- a/packages/subagent/subagent-acp/src/run.ts +++ b/packages/subagent/subagent-acp/src/run.ts @@ -340,6 +340,11 @@ export async function startAcpRun(request: SubagentStartRequest, spec: AcpRunSpe cancelSettled.then((): SubagentResult => ({ output: collectOutput(), stopReason: 'aborted' })), ]) } catch (error: unknown) { + // A deterministic cancellation resolves `cancelSettled` before its + // best-effort ACP cancel can reject the prompt. This fallback is only for + // a process/pipe rejection already queued when the abort event fires; its + // first-outcome ordering cannot be forced without a timing-dependent test. + /* v8 ignore next */ if (flags.cancelled) return { output: collectOutput(), stopReason: 'aborted' } // The seam contract: result resolves (never rejects) on a child-level // failure. Startup failures were already rejected before publication; diff --git a/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts b/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts index 4bbafea521..eed3cfe1ed 100644 --- a/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts +++ b/packages/subagent/subagent-acp/tests/subagent-acp.spec.ts @@ -127,7 +127,9 @@ describe('dsh-subagent-acp', () => { const result = await run.result expect(result.stopReason).toBe('completed') expect(text(result.output)).toBe('hello from acp child') - await run.dispose() + const disposal = run.dispose() + expect(run.dispose()).toBe(disposal) + await disposal }) it('maps a max_tokens stop reason', async () => { @@ -470,6 +472,19 @@ describe('dsh-subagent-acp', () => { await run.dispose() }) + it('logs a flattened child failure through the registered provider', async () => { + const ctx = await setup({ MOCK_CRASH_ON_PROMPT: '1' }) + const warnings: string[] = [] + ctx.logger.warn = ((message: unknown) => { warnings.push(String(message)) }) as typeof ctx.logger.warn + const run = await ctx.subagents.start('acp', request()) + const result = await run.result + expect(result.stopReason).toBe('error') + expect(warnings).toEqual([ + expect.stringContaining('subagent-acp "acp": child run failed (error):'), + ]) + await run.dispose() + }) + it('resolves error (never rejects) even when the onError sink itself throws', async () => { // onError is a caller-supplied callback boundary: its own exception must be // contained, or it would reject `result` and break the seam's "result never diff --git a/packages/support/subagent-mock/tests/subagent-mock.spec.ts b/packages/support/subagent-mock/tests/subagent-mock.spec.ts index 3ddfaad4d4..7fd93c62bc 100644 --- a/packages/support/subagent-mock/tests/subagent-mock.spec.ts +++ b/packages/support/subagent-mock/tests/subagent-mock.spec.ts @@ -32,6 +32,7 @@ describe('dsh-subagent-mock', () => { structured: undefined, stopReason: 'completed', }) + await run.dispose() }) it('registers under a configurable name', async () => { @@ -75,6 +76,25 @@ describe('dsh-subagent-mock', () => { await expect(run.result).resolves.toMatchObject({ stopReason: 'aborted' }) }) + it('rejects an already-aborted request before starting publication', async () => { + const ctx = await mount() + const controller = new AbortController() + controller.abort() + + await expect(ctx.subagents.start('mock', baseRequest({ signal: controller.signal }))) + .rejects.toThrow('mock subagent start aborted before publication') + }) + + it('rejects when cancellation wins the asynchronous publication handoff', async () => { + const ctx = await mount() + const controller = new AbortController() + const pending = ctx.subagents.start('mock', baseRequest({ signal: controller.signal })) + + controller.abort() + + await expect(pending).rejects.toThrow('mock subagent start aborted before publication') + }) + it('unregisters the provider when the owning fiber is disposed (HMR safety)', async () => { const ctx = new Context() await ctx.plugin(SubagentService) diff --git a/packages/ui/user-approval/src/index.ts b/packages/ui/user-approval/src/index.ts index 8496e40e62..6b3ef962bb 100644 --- a/packages/ui/user-approval/src/index.ts +++ b/packages/ui/user-approval/src/index.ts @@ -451,9 +451,6 @@ export class ApprovalService extends Service { resolve('cancelled') } signal.addEventListener('abort', onAbort, { once: true }) - // Abort can win after the initial check but before listener installation. - // Recheck at the settlement boundary so that edge still cancels. - if (signal.aborted) onAbort() void answer.then((outcome) => { signal.removeEventListener('abort', onAbort) // After an abort won the race this resolve is a settled-promise no-op: diff --git a/packages/ui/user-approval/tests/approval.spec.ts b/packages/ui/user-approval/tests/approval.spec.ts index be9e723732..ff0cd5c7d8 100644 --- a/packages/ui/user-approval/tests/approval.spec.ts +++ b/packages/ui/user-approval/tests/approval.spec.ts @@ -281,26 +281,6 @@ describe('ApprovalService.request', () => { expect(appended[1]?.data).toMatchObject({ outcome: 'cancelled' }) }) - it('does not miss an abort between the initial check and listener installation', async () => { - const ctx = await mounted() - const { agent, appended } = fakeAgent() - const answer = Promise.withResolvers() - ctx.on('approval/request', () => answer.promise) - const controller = new AbortController() - const addEventListener = controller.signal.addEventListener.bind(controller.signal) - const add = vi.spyOn(controller.signal, 'addEventListener').mockImplementation((type, listener, options) => { - controller.abort() - addEventListener(type, listener, options) - }) - - await expect(ctx.approval.request(requestOf(agent, { signal: controller.signal }))).resolves.toBe('cancelled') - - answer.resolve('allowed-once') - await Promise.resolve() - expect(add).toHaveBeenCalledOnce() - expect(appended[1]?.data).toMatchObject({ outcome: 'cancelled' }) - }) - it('resolves cancelled when the signal aborts mid-question and discards the late answer', async () => { const ctx = await mounted() const { agent, appended } = fakeAgent() diff --git a/packages/workflow/workflow-workerthread/src/host.ts b/packages/workflow/workflow-workerthread/src/host.ts index 44ea569382..95c07f0d2d 100644 --- a/packages/workflow/workflow-workerthread/src/host.ts +++ b/packages/workflow/workflow-workerthread/src/host.ts @@ -468,13 +468,13 @@ export class WorkerRun implements WorkflowRun { .catch((error: unknown) => { this.ctx.logger.warn(`workflow-workerthread: child dispose failed: ${renderThrown(error)}`) }) - .then(() => { this.finishChild(callId, record) }) + .then(() => { this.finishChild(callId) }) return record.disposal } - /** Drop an exact child record and release quiescence waiters when all work ends. */ - private finishChild(callId: number, record: ChildRecord): void { - if (this.children.get(callId) === record) this.children.delete(callId) + /** Drop a child record and release quiescence waiters when all work ends. */ + private finishChild(callId: number): void { + this.children.delete(callId) this.notifyChildQuiescence() } diff --git a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts index 623da10f72..4ad00ee02f 100644 --- a/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts +++ b/packages/workflow/workflow-workerthread/tests/workflow-workerthread.spec.ts @@ -1049,6 +1049,67 @@ describe('dsh-workflow-workerthread', () => { await ctx.fiber.dispose() }) + it('refuses and disposes a provider run that becomes ready after its real worker dies', async () => { + const ctx = new Context() + await ctx.plugin(SubagentService) + const requested = Promise.withResolvers() + const ready = Promise.withResolvers() + let disposeCalls = 0 + const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => ctx.logger) + const provider: SubagentProvider = { + name: 'late-ready', + capabilities: { outputSchema: true, depthLimit: true, toolFilter: true, persona: false }, + inheritsParentContext: false, + start: (request) => { + requested.resolve(request) + // Model a backend whose independent startup boundary cannot be + // interrupted promptly. The host must still reject ownership if the + // worker dies before this promise transfers the ready run. + return ready.promise + }, + } + ctx.subagents.registerProvider(provider) + await ctx.plugin(WorkerWorkflowEngine, { provider: 'late-ready', maxConcurrentAgents: 1 }) + const lifecycle: string[] = [] + ctx.on('workflow/agent-start', () => { lifecycle.push('start') }) + ctx.on('workflow/agent-end', () => { lifecycle.push('end') }) + + const handle = ctx.workflows.start({ + ...scripted("return await agent('pending startup')"), + parent: fakeParent(), + }) + const request = await requested.promise + const worker = (handle as unknown as { worker: Worker }).worker + + // Kill the actual Worker while provider startup is independently + // pending. Death closes admission and aborts the shared signal, but this + // deliberately uncooperative provider still fulfills afterward. + await worker.terminate() + const result = await handle.result + expect(result.stopReason).toBe('error') + expect(result.error).toContain('exit code') + expect(request.signal.aborted).toBe(true) + expect(request.signal.reason).toBe('workflow worker gone') + + ready.resolve({ + id: AgentId('late-ready-child'), + result: Promise.resolve({ output: [], stopReason: 'aborted' }), + dispose: () => { + disposeCalls += 1 + return Promise.reject(new Error('late ready dispose failed')) + }, + }) + await waitFor(() => { + expect(disposeCalls).toBe(1) + expect(warn).toHaveBeenCalledWith(expect.stringContaining('refused child dispose failed: Error: late ready dispose failed')) + }, 1000) + expect(lifecycle).toEqual([]) + + await handle.dispose() + expect(disposeCalls).toBe(1) + await ctx.fiber.dispose() + }) + it('a worker that exits before settling reports an error result and reaps its children', async () => { const ctx = new Context() await ctx.plugin(SubagentService) From 2ca806a1ec24fe3bf9e09eb3309bfcce378d89f9 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 23:16:30 +0800 Subject: [PATCH 223/232] docs: refresh scoped lifecycle catalogs --- docs/config-catalog.md | 2 +- docs/cordis-catalog/services.md | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 4e92f0a0a2..63d1303fc6 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -129,7 +129,7 @@ export interface Config { Depends on: [`AgentId`](../packages/core/agent/src/index.ts) · [`AgentOptions`](../packages/core/agent/src/index.ts) · [`SessionId`](../packages/core/session/src/index.ts) -Source: [`packages/core/agent-loop/src/index.ts:335`](../packages/core/agent-loop/src/index.ts) +Source: [`packages/core/agent-loop/src/index.ts:325`](../packages/core/agent-loop/src/index.ts) ## `@deepseek-ai/dsh-bash-local` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 29e440776d..2e508e0a35 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -19,7 +19,7 @@ async createAgent(ownerCtx: Context, options: CreateAgentOptions): Promise ``` -Source: [`packages/core/agent-loop/src/index.ts:348`](../../packages/core/agent-loop/src/index.ts) +Source: [`packages/core/agent-loop/src/index.ts:338`](../../packages/core/agent-loop/src/index.ts) ## `ctx.agents` — `AgentRegistry` From 5d49a7916571164a6830e5f97e86d4eaf2df079c Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 23:34:35 +0800 Subject: [PATCH 224/232] docs: align lifecycle guides with final entry --- docs/architecture.md | 2 +- docs/cookbook/extension-cookbook.md | 4 ++-- .../2026-06-18-agent-lifecycle-and-ownership-seams.md | 4 ++-- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/docs/architecture.md b/docs/architecture.md index 0976277aaf..2012be0946 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -58,7 +58,7 @@ A **session** is one agent's append-only event log. A **turn** drains one queued ### Turn Flow ```text -reserve ids -> mint agent.ctx -> await unpublished setup +prepare private session + agent.ctx -> await unpublished setup -> enter session + agent -> session/created -> agent/created -> enable driving -> agent/session-start(source) -> start driver forever: diff --git a/docs/cookbook/extension-cookbook.md b/docs/cookbook/extension-cookbook.md index f15ef37e9d..ac62cdd75b 100644 --- a/docs/cookbook/extension-cookbook.md +++ b/docs/cookbook/extension-cookbook.md @@ -94,14 +94,14 @@ Every product feature maps to a listener on a documented extension seam — the | Hook system (user + project level) | listeners on `agent/session-start`, `agent/prompt-submit`, `agent/request`, `agent/step-result`, `tools/pre-execute`, `tools/post-execute`, `agent/turn-continuation` — each interception waterfall returns a typed Decision; the `dsh-hooks-claude` / `dsh-hooks-codex` bridges map hook config files onto these seams | | `/goal` | force-continue via `agent/turn-continuation` + `steer()` reminders | | `/loop` | on the `turn/end` session event, `send()` the next iteration; or force-continue | -| Dynamic workflow | `ctx.workflows` + the worker-thread engine + the `workflow` tool; structured in-process children enforce output with scoped prompt protection, a monotonic tool guard, final `tools/result` commit (including enclosing `run_code`), and terminal `agent/turn-stop` | +| Dynamic workflow | `ctx.workflows` + the worker-thread engine + the `workflow` tool; structured in-process children enforce output with scoped owner-final prompt/tool contributions, a monotonic tool guard, final `tools/result` commit (including enclosing `run_code`), and terminal `agent/turn-stop` | | Queued + steering messages | core `Agent.send()` / `Agent.steer()` | | Context compaction (auto + manual) | the `ctx.compact` seam + a backend (`dsh-compact-basic`) on the serial `agent/pre-step` seam; auto = token-pressure check before each step; a manual trigger invokes the same `ctx.compact` routine ([compaction RFC](../rfc/implemented/feature/2026-06-18-compaction-capability-seam.md) — the model-facing `/compact` consumer tool is deferred) | | System prompt configurability | `ctx.systemPrompt.section()` with ordering; a protocol owner sets `ownerFinal: true` on the section or tool only when canonical presence is a correctness invariant | | AGENTS.md (root) | a section provider reading the file | | AGENTS.md (subdir, on-touch) + file-change notices | `agent.inject()` from a watcher / tool-result listener | | Built-in tools | `ctx.tools.register()`; schemas flow into the assembly automatically — the `dsh-tool-*` families (bash, fs, web, subagent, todo) are the shipped examples | -| ToolSearch / progressive disclosure | filter ordinary capabilities at `system-prompt/assemble` (the loop logs the result as the request header); owner-protected transport and correctness entries retain their canonical presence or absence | +| ToolSearch / progressive disclosure | filter ordinary capabilities at `system-prompt/assemble` (the loop logs the result as the request header); owner-final transport and correctness contributions retain their canonical presence or absence | | Tool deadline / retry / metrics | wrap core dispatch with `tools/execute`; a wrapper may replace `exec.signal`, delegate, and inspect the normalized result in one lexical lifetime | | Final tool-result metrics / audit / capture | observe immutable authoritative outcomes with `tools/result`; use `tools/post-execute` instead only when the plugin must transform the result or attach context | | Monotonic terminal turn policy | return `{ action: 'stop' }` from serial `agent/turn-stop`, after continuation and steering have already been folded | diff --git a/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md b/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md index 80ca18b56f..d64329262e 100644 --- a/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md +++ b/docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md @@ -16,7 +16,7 @@ A new `cancel()` verb on the `Agent` interface — the single public stop primit ### 2. `AgentHandle` async disposer -`ctx.agents.create`/`resume` (and the `AgentFactory` interface) return `AgentHandle = { agent: Agent; dispose(): Promise }`. The disposer is a **consumer capability** — a registry observer holding only the bare `Agent` cannot tear it down. The caller fiber and registered factory provider are structural co-owners: caller unload enforces structured ownership, while provider unload must stop old instances whose scoped dependency surface resolves through that provider. All three paths reach the same memoized teardown: stop the loop, `await` its exit (true quiescence, not just the `disposed` status flip), unregister it, remove its session from the store, unwind its scope, and only then release both public IDs. Config-created agents are already owned by the `AgentLoop` fiber (the handle is discarded). ACP holds each session's disposer in its `SessionRecord` and runs it on disconnect/teardown, so a bare client disconnect leaves no registered agent and no session-store entry — even when `session/load` races teardown (the just-resumed handle is disposed before the closed-guard throw). +`ctx.agents.create`/`resume` (and the `AgentFactory` interface) return `AgentHandle = { agent: Agent; dispose(): Promise }`. The disposer is a **consumer capability** — a registry observer holding only the bare `Agent` cannot tear it down. The caller fiber and registered factory provider are structural co-owners: caller unload enforces structured ownership, while provider unload must stop old instances whose scoped dependency surface resolves through that provider. All three paths reach the same memoized teardown: stop the loop, await its exit and idle flushes (true quiescence, not just the `disposed` status flip), detach the agent, detach its session, and unwind its scope. Each public ID becomes reusable when its exact registry entry detaches; there is no separate reservation-release phase. Config-created agents are already owned by the `AgentLoop` fiber (the handle is discarded). ACP holds each session's disposer in its `SessionRecord` and runs it on disconnect/teardown, so a bare client disconnect leaves no registered agent and no session-store entry — even when `session/load` races teardown (the just-resumed handle is disposed before the closed-guard throw). **Teardown ORDER is load-bearing for durability**, and the implementation folds the session lifecycle into the agent's SINGLE composite cordis effect (`SessionStore.prepare`/`enter`/`announce`, replacing a sibling-effect split). A fiber unload disposes sibling effects concurrently (`Promise.all`), which would race removing the session store's append publication hooks against the loop's closing `session/flush` and drop the closing `turn/end`; inside one effect the disposers run as an ordered LIFO chain (loop stopped + `await agent.done` BEFORE the session detaches), so the loop's final flush is captured on BOTH the handle's `dispose()` and a fiber unload. The contained `agent/disposed` and `session/disposed` notifications cannot reject the chain or skip later teardown. @@ -35,7 +35,7 @@ These invariants hold and are pinned by tests: ## Session owner tokens are unique among live agents -The bash owner-token comparison relies on `session.header.id` being unique among live agents. `SessionStore.enter()` rejects a duplicate live session id, and the async agent factory reserves both agent and session ids across persistence loading and unpublished setup before rechecking the store at publication. A programmatic caller therefore cannot publish two live agents with one session token. The access *policy* (token comparison) stays in `tool-bash` (the consumer); the bash seam stores only an opaque `owner` string and never interprets it — the correct interface/implementation/consumer split. +The bash owner-token comparison relies on `session.header.id` being unique among live agents. Concurrent same-ID operations may both prepare privately, but publication enters the session and agent in order; `SessionStore.enter()` rejects a duplicate live session id, and every losing transaction rolls its private state back. A programmatic caller therefore cannot publish two live agents with one session token. The access *policy* (token comparison) stays in `tool-bash` (the consumer); the bash seam stores only an opaque `owner` string and never interprets it — the correct interface/implementation/consumer split. ## Alternatives considered From f7b9cea733a472a569079cf2da93dc7961ee813b Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Sun, 12 Jul 2026 23:40:27 +0800 Subject: [PATCH 225/232] docs: clarify scoped persona shadowing --- packages/core/agent-loop/README.md | 2 +- packages/core/system-prompt/README.md | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/packages/core/agent-loop/README.md b/packages/core/agent-loop/README.md index 0b0414d37f..871689008b 100644 --- a/packages/core/agent-loop/README.md +++ b/packages/core/agent-loop/README.md @@ -40,7 +40,7 @@ interface Config { } ``` -Agents listed in config are auto-created at startup. `cwd` applies only to fresh config-created sessions; `resumeSessionId` keeps the persisted session header. There is no per-agent persona: the deployment persona is `dsh-system-prompt`'s own `persona` config, shared by every agent in the context. The plugin registers the built-in `model`/`cwd` prompt variables on `ctx.systemPrompt`, resolved per step from the `assemble({ agent })` context — runtime facts of the agents THIS loop drives, unlike the `harness:identity`/`deployment:persona` sections, which live on `dsh-system-prompt` so they survive a swapped loop plugin. +Agents listed in config are auto-created at startup. `cwd` applies only to fresh config-created sessions; `resumeSessionId` keeps the persisted session header. Config agents have no per-agent persona field: they use `dsh-system-prompt`'s deployment default, while programmatic factory callers can register an agent-scoped `deployment:persona` shadow in `setup`. The plugin registers the built-in `model`/`cwd` prompt variables on `ctx.systemPrompt`, resolved per step from the `assemble({ agent })` context — runtime facts of the agents THIS loop drives, unlike the `harness:identity` and default `deployment:persona` sections, which live on `dsh-system-prompt` so they survive a swapped loop plugin. ### Exported concrete class diff --git a/packages/core/system-prompt/README.md b/packages/core/system-prompt/README.md index 507ba86c5e..270a016cf3 100644 --- a/packages/core/system-prompt/README.md +++ b/packages/core/system-prompt/README.md @@ -1,12 +1,12 @@ # dsh-system-prompt -System prompt assembly registry. Plugins contribute ordered text sections, tool-schema providers, and named prompt variables; contributions that implement required protocol may declare themselves owner-final. The agent loop calls `assemble(context)` once per step, and `renderPrompt(assembly)` is the full system prompt the model sees. The plugin registers the harness-owned openers itself — the static `harness:identity` section and the deployment's `deployment:persona` section — so they exist for every agent regardless of which loop plugin drives it. +System prompt assembly registry. Plugins contribute ordered text sections, tool-schema providers, and named prompt variables; contributions that implement required protocol may declare themselves owner-final. The agent loop calls `assemble(context)` once per step, and `renderPrompt(assembly)` is the full system prompt the model sees. The plugin registers the harness-owned openers itself — the static `harness:identity` section and the global default `deployment:persona` section — so they remain available regardless of which loop plugin drives an agent. An agent-scoped contribution with the same persona name shadows that default for its agent. ## Config | Key | Default | Meaning | |---|---|---| -| `persona` | `''` | The deployment persona: the ONE deployment-authored prompt fragment, rendered as the order-0 `deployment:persona` section and shared by every agent in the context (subagents included). A template — complete `{{…}}` groups are interpreted strictly against the registered variables (the shipped loop registers `{{model}}`/`{{cwd}}`), with no escape syntax for literal braces yet. Empty ⇒ the section is dropped at render. | +| `persona` | `''` | The global deployment-persona default: the ONE config-authored prompt fragment, rendered as the order-0 `deployment:persona` section unless an agent-scoped contribution shadows it. A template — complete `{{…}}` groups are interpreted strictly against the registered variables (the shipped loop registers `{{model}}`/`{{cwd}}`), with no escape syntax for literal braces yet. Empty ⇒ the section is dropped at render. | | `toolOrder` | — | Explicit model-facing tool order, as a list of `ToolSchema.name`s with one `''` rest entry (`TOOL_ORDER_REST`): listed tools take their listed position, unlisted tools land at the rest entry in lexicographic name order. Absent ⇒ plain lexicographic name order. Applied to the collected tools BEFORE the `system-prompt/assemble` waterfall — like the sections' `order` sort, it canonicalizes what the registry contributed (registration order is a plugin-load artifact), and a waterfall listener that mutates the list owns the determinism of what it emits. Misconfiguration fails loud: a list without exactly one rest entry, or with duplicates, throws at load; a listed name with no registered tool rejects every `assemble()`; a tool provider returning the reserved rest-entry name also rejects. Under the shipped loop the turn fails before any model request. Why a central list and not per-plugin weights: [Explicit model-facing tool order](../../../docs/rfc/implemented/feature/2026-07-06-explicit-tool-order.md). | ## Service: `SystemPrompt` (ctx key: `systemPrompt`) @@ -41,7 +41,7 @@ Merge-extensible: plugins can declare extra fields on `PromptAssembly` and `Asse ### What is NOT here -- Any deployment-authored prompt text outside config — the persona is this plugin's `persona` config, and every other section comes from the plugin that owns the fact. (The `harness:identity` line is deliberately a code literal: a harness fact, not a deployment choice; the `system-prompt/assemble` waterfall is the escape valve for a deployment that must drop it.) +- Any end-user prompt-editing API — this plugin owns the config-authored global persona default, creator plugins may register agent-scoped shadows during setup, and every other section comes from the plugin that owns the fact. (The `harness:identity` line is deliberately a code literal: a harness fact, not a deployment choice; the `system-prompt/assemble` waterfall is the escape valve for a deployment that must drop it.) - Prompt compaction (belongs on the `agent/pre-step` seam in `dsh-agent`). Design rationale: [the prompt-variables RFC](../../../docs/rfc/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md). From cecc4c82c3890f35a798db804a33764286c0ae09 Mon Sep 17 00:00:00 2001 From: Ziya <199893125+ZiyaZhang@users.noreply.github.com> Date: Sun, 12 Jul 2026 19:34:22 -0700 Subject: [PATCH 226/232] rfc: drop the ACP surface binding, keep the mechanics surface-agnostic --- .../2026-07-08-interactive-side-sessions.md | 29 +++++++++---------- 1 file changed, 14 insertions(+), 15 deletions(-) diff --git a/docs/rfc/proposed/feature/2026-07-08-interactive-side-sessions.md b/docs/rfc/proposed/feature/2026-07-08-interactive-side-sessions.md index 2ed5008356..79a40b66af 100644 --- a/docs/rfc/proposed/feature/2026-07-08-interactive-side-sessions.md +++ b/docs/rfc/proposed/feature/2026-07-08-interactive-side-sessions.md @@ -16,34 +16,33 @@ A **side session** is an ordinary live session forked from a source session at i - **Fork + attach composes existing primitives.** The child is created via `ctx.agents.create({ seed, meta })` with the parent's balanced completed-turn prefix (the same slice the fork subagent takes) and `parentSession`/`seedLength` lineage stamped in `meta`. No new core service and no session-store change, for the same reasons [the fork API RFC](../../implemented/feature/2026-06-30-session-store-fork-api.md) rejected a standalone fork service. - **Advisor framing rides the log, not the system prompt.** The rules ("you are a read-only side advisor; explain, do not mutate; refuse task continuation") are `inject()`ed as a `context/message` with source `{ kind: 'plugin', plugin: 'sidechat' }` immediately after creation. The child's system prompt stays byte-identical to the parent's, so the provider's prefix cache covers the inherited history. -- **Merge-back is one condense turn plus one injection.** `/merge` prompts the child for a bounded handback note (a hard length cap), then `inject()`s the note into the PARENT as a `context/message` with the same plugin source. The parent's next request sees it at its chronological position; replay and [reconstructability](../../implemented/architecture/2026-07-05-reconstructable-requests.md) hold by construction; no new event type enters [the session vocabulary](../../../core-data-structures/session.md). -- **The v1 surface is the ACP bridge, with no new protocol capability.** The bridge intercepts `/side [question]` on a prompt: it stages the fork (bridge-local state, nothing appended to the source log) and the next `session/new` in the same workspace claims it, so the child appears to the editor as an ordinary second session under [multi-session](./2026-06-14-acp-multi-session.md). A plugin-sourced `context/message` renders as a visible message through the bridge's shared event translator, so the live stream and `session/load` replay derive the identical visible record from the same durable event — the handback's visibility is a projection of the log, never a live-only mirror. +- **Merge-back is one condense turn plus one injection.** The child is prompted for a bounded handback note (a hard length cap), which is then `inject()`ed into the PARENT as a `context/message` with the same plugin source. The parent's next request sees it at its chronological position; replay and [reconstructability](../../implemented/architecture/2026-07-05-reconstructable-requests.md) hold by construction; no new event type enters [the session vocabulary](../../../core-data-structures/session.md). +- **The surface binding is deliberately unspecified.** How a user invokes the fork and the merge, and how a handback note is presented, are client concerns; while the harness speaks through protocols whose UI it does not control, this RFC pins only the surface-agnostic mechanics above and leaves presentation to the first surface the project owns. -v1 scope excludes: the stdio-agent surface (single-session readline today), rewind productization (mechanically the same fork-to-an-earlier-boundary, an entirely different product question), session tree views, a model-facing side-session tool, `forkName`/`mergedInto` metadata, and cross-connection persistence of a staged fork. +Scope also excludes: rewind productization (mechanically the same fork-to-an-earlier-boundary, an entirely different product question), session tree views, a model-facing side-session tool, and `forkName`/`mergedInto` metadata. ## Prototype -A bridge-level spike (branch `spike/side-sessions-b`) runs the full loop against the live adapter: `/side` staging with zero source-log writes, a claim that seeds the child with the full inherited prefix, a multi-turn advisor exchange that demonstrably uses parent history, and a merge-back the parent's next turn quotes correctly. +A spike (branch `spike/side-sessions-b`) validates the mechanics against the live adapter: a fork that leaves the source log untouched, a child seeded with the full inherited prefix, a multi-turn advisor exchange that demonstrably uses parent history, and a merge-back the parent's next turn quotes correctly. ## Alternatives considered - **Carry side conversations through the subagent seam.** Rejected: a subagent child is a model-driven run — the parent's model spawns it, drives it, and consumes its result as a tool result. A side session is user-driven, needs its own client-visible session and lifecycle, and must outlive any single parent turn. - **Persona via `system-prompt/assemble` section filtering.** Rejected as the default path: any system-prompt byte change invalidates the provider prefix cache from token 0, forfeiting the cheap fork that makes side sessions attractive on long histories. The filter seam remains available for deployments that prefer hard prompt separation over cache reuse. - **A dedicated `sidechat/*` event family for the handback.** Deferred: `context/message` with a mandatory plugin source already satisfies durability, provenance, and replay. A first-class event earns its catalog, persistence, and snapshot costs only if a UI needs to render handbacks as dedicated cards. -- **An ACP `session/fork` method now.** Deferred: the fork API RFC gates any ACP surface on transcript/snapshot coverage before the capability is advertised, and today's clients offer no fork affordance to call it from. Stage-and-claim ships the experience with zero protocol additions and can be replaced by the method transparently later. -- **A live-only transcript mirror for the handback.** Rejected in review: load replay deliberately ignores `context/message`, so a bridge-emitted `agent_message_chunk` would make the visible note vanish on `session/load` while the model still sees it. Rendering the durable `context/message` through the shared translator keeps live streaming and replay byte-identical. +- **Binding the proposal to a protocol surface now.** Rejected in review: the harness currently speaks through client-owned UIs it does not control, so any presentation contract written today would be speculative. The RFC pins the surface-agnostic mechanics and defers presentation to the first surface the project owns. +- **Surface-level mirroring of the handback.** Rejected in review: a visible record emitted outside the log vanishes on replay while the model still sees it. Whatever surface eventually renders the handback must derive its presentation from the durable `context/message`, so live and replayed views come from the same event. ## Acceptance criteria -- `/side` on a live ACP session appends nothing to that session's log; staging is bridge-local and consumed by exactly one claim. -- The claiming `session/new` yields a child seeded with the source's completed-turn prefix, with `parentSession` and `seedLength` in its header and a system prompt byte-identical to the parent's. -- `/merge` appends exactly one length-capped `context/message` to the parent with source `plugin: sidechat`; the parent's next request sees it, and `session/load` reproduces the visible handback note identically to the live stream — both derive from the same durable event. -- Parent and child stream concurrently without interleaving their `session/update` feeds (existing multi-session isolation). -- Coverage: bridge unit tests for the stage/claim/merge state machine over the in-memory transport, plus a keyless snapshot scenario exercising fork-claim and merge-back end to end. +- Forking a live session yields a child agent seeded with the source's balanced completed-turn prefix, with `parentSession` and `seedLength` in its header and a system prompt byte-identical to the parent's; the source log is untouched by the fork. +- The advisor framing is exactly one plugin-sourced `context/message` at the head of the child's appended history — never a system-prompt change. +- Merge-back appends exactly one length-capped `context/message` to the parent with source `plugin: sidechat`; the parent's next request sees it, and replay reproduces it at the same position. +- Parent and child run concurrently without cross-talk between their logs or streams. +- Coverage: unit tests for the fork/attach and merge-back mechanics; surface-level snapshot coverage lands with whichever surface first binds the feature. ## Risks -- **Read-only is advisory in v1.** The rules are injected context, not enforcement; a determined prompt can still drive mutating tools. The hard gate is a `tools/pre-execute` deny via [the interception seams](../../implemented/feature/2026-06-30-interception-seams.md), and the RFC's advisor framing is written so that gate can be added without changing the product surface. -- **The staged fork has one slot.** The next same-workspace `session/new` claims it even if the user meant an unrelated thread; the claim banner names the source session and the slot dies with the connection, but a mis-claim costs the user a discarded thread. -- **A compacted source forks its compacted view.** The child inherits the summary, not the original turns; the claim banner should disclose this once [compaction](../../implemented/feature/2026-06-18-compaction-capability-seam.md) ships in this path. -- **Handback notes spend parent tokens.** The length cap and one-note-per-`/merge` bound the cost, but a user who merges repeatedly accumulates notes; a future consolidation pass belongs to the compaction work, not this surface. +- **Read-only is advisory in v1.** The rules are injected context, not enforcement; a determined prompt can still drive mutating tools. The hard gate is a `tools/pre-execute` deny via [the interception seams](../../implemented/feature/2026-06-30-interception-seams.md), and the RFC's advisor framing is written so that gate can be added without changing the mechanics. +- **A compacted source forks its compacted view.** The child inherits the summary, not the original turns; whichever surface binds the feature should disclose this once [compaction](../../implemented/feature/2026-06-18-compaction-capability-seam.md) ships in this path. +- **Handback notes spend parent tokens.** The length cap and one-note-per-merge bound the cost, but a user who merges repeatedly accumulates notes; a future consolidation pass belongs to the compaction work, not here. From f32cfafa1ab6137bf5b9683df1dceee790630c1d Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 13 Jul 2026 11:58:55 +0800 Subject: [PATCH 227/232] refactor: narrow synchronous extension contracts --- docs/cordis-catalog/events.md | 14 +++---- docs/cordis-catalog/services.md | 22 +++++------ docs/core-data-structures/tools.md | 2 +- docs/event-producer-consumer.md | 6 +-- .../2026-06-11-microkernel-event-taxonomy.md | 4 +- .../2026-07-08-agent-scope-contexts.md | 6 --- .../2026-07-12-agent-scope-runtime-design.md | 2 +- .../feature/2026-06-30-interception-seams.md | 2 +- docs/tool-execution-pipeline.md | 4 +- .../cordis/tool-cordis/src/api-catalog.ts | 30 +++++++-------- packages/cordis/tool-cordis/src/guard.ts | 4 +- packages/core/agent/README.md | 4 +- packages/core/agent/src/index.ts | 6 ++- packages/core/agent/src/types.ts | 5 +-- packages/core/agent/tests/agent.spec.ts | 17 +++++++-- packages/core/system-prompt/README.md | 6 +-- packages/core/system-prompt/src/index.ts | 21 ++++++----- .../core/system-prompt/tests/scoped.spec.ts | 2 +- .../system-prompt/tests/system-prompt.spec.ts | 8 ++-- packages/core/tools/README.md | 6 +-- packages/core/tools/src/index.ts | 37 ++++++++++--------- packages/core/tools/tests/code-mode.spec.ts | 2 +- packages/core/tools/tests/scoped.spec.ts | 17 +++++++-- packages/core/tools/tests/tools.spec.ts | 4 +- packages/skill/skill/README.md | 4 +- packages/skill/skill/src/index.ts | 6 ++- packages/skill/skill/tests/skill.spec.ts | 10 ++--- .../subagent-inprocess/src/structured.ts | 2 +- .../tests/structured.spec.ts | 2 +- packages/subagent/subagent/src/index.ts | 3 +- .../subagent/subagent/tests/service.spec.ts | 4 +- packages/subagent/tool-subagent/src/index.ts | 4 +- scripts/gen-doc-graphs.ts | 8 ++-- 33 files changed, 148 insertions(+), 126 deletions(-) diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index e0149c7c67..67d339df5a 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -47,7 +47,7 @@ A step or turn errored. The loop reports a failure here (plus the logger) even w Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:606`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:605`](../../packages/core/agent/src/types.ts) ### `agent/pre-step` — serial @@ -165,15 +165,15 @@ Source: [`packages/core/agent/src/types.ts:570`](../../packages/core/agent/src/t ### `agent/turn-stop` — serial -Serial terminal-stop checkpoint after the ordinary `agent/turn-continuation` waterfall, any `continue.reason`, and the pending-steering continuation override have been folded. A listener returns `{ action: 'stop' }` to make this turn terminal, or `undefined` to abstain. Terminal stop is monotonic: listener order and steering cannot resume the turn, and pending steering is discarded rather than becoming another step or turn. A malformed non-undefined result fails the turn closed. +Serial terminal-stop checkpoint after the ordinary `agent/turn-continuation` waterfall, any `continue.reason`, and the pending-steering continuation override have been folded. A listener returns `{ action: 'stop' }` to make this turn terminal, or `undefined` to abstain. Terminal stop is monotonic: listener order and steering cannot resume the turn, and pending steering is discarded rather than becoming another step or turn. ```ts cordis-catalog -'agent/turn-stop'(this: Scoped, agent: Agent, turn: number): Promise | ContinuationStop | undefined +'agent/turn-stop'(this: Scoped, agent: Agent, turn: number): ContinuationStop | undefined ``` Types: [Agent](../core-data-structures/core.md) -Source: [`packages/core/agent/src/types.ts:589`](../../packages/core/agent/src/types.ts) +Source: [`packages/core/agent/src/types.ts:588`](../../packages/core/agent/src/types.ts) ## `approval/*` @@ -419,12 +419,12 @@ Types: [ToolExecution](../core-data-structures/tools.md) Source: [`packages/core/tools/src/index.ts:101`](../../packages/core/tools/src/index.ts) -### `tools/result` — parallel +### `tools/result` — emit -Awaited notification of the authoritative FINAL tool outcome, after the complete pre/execute/post pipeline, final lossless-JSON validation, and outer error normalization. Unlike the three waterfalls, this seam cannot transform the result: each listener receives the now-frozen execution object and a deep-frozen result snapshot; listener failures are contained and logged, and ToolRegistry.execute still returns the outcome. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): keyed by `exec.agent`, using the same carrier as the pipeline. +Synchronous notification of the authoritative FINAL tool outcome, after the complete pre/execute/post pipeline, final lossless-JSON validation, and outer error normalization. Unlike the three waterfalls, this seam cannot transform the result: each listener receives the now-frozen execution object and a deep-frozen result snapshot; listener failures are contained and logged, and ToolRegistry.execute still returns the outcome. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): keyed by `exec.agent`, using the same carrier as the pipeline. ```ts cordis-catalog -'tools/result'(this: Scoped, exec: Readonly, result: Readonly): Promise | void +'tools/result'(this: Scoped, exec: Readonly, result: Readonly): undefined ``` Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index 2e508e0a35..e3fe559d35 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -26,10 +26,10 @@ Source: [`packages/core/agent-loop/src/index.ts:338`](../../packages/core/agent- Agent registry (`ctx.agents`): tracks live agents so UI, hook, and orchestrator plugins can find them without depending on the concrete loop package. Agent *creation* is provided by whichever plugin implements the AgentFactory (`@deepseek-ai/dsh-agent-loop`), registered via setFactory. ```ts cordis-catalog -setFactory(factory: AgentFactory): () => Promise | void +setFactory(factory: AgentFactory): () => void async create(options: CreateAgentOptions): Promise async resume(options: ResumeAgentOptions): Promise -register(agent: Agent): () => Promise | void +register(agent: Agent): () => void enter(agent: Agent): () => void announce(agent: Agent): void get(id: AgentId): Agent | undefined @@ -225,8 +225,8 @@ Source: [`packages/core/session/src/index.ts:591`](../../packages/core/session/s Registry of skill providers. It merges provider catalogs with stable first-wins duplicate handling, exposes sorted model-visible summaries, and loads full skill bodies on demand. ```ts cordis-catalog -registerProvider(provider: SkillProvider): () => Promise | void -register(skill: SkillRegistration): () => Promise | void +registerProvider(provider: SkillProvider): () => void +register(skill: SkillRegistration): () => void async list(options: SkillLookupOptions = {}): Promise async get(name: string, options: SkillLookupOptions = {}): Promise ``` @@ -238,7 +238,7 @@ Source: [`packages/skill/skill/src/index.ts:158`](../../packages/skill/skill/src Named provider registry and capability-checked start surface. ```ts cordis-catalog -registerProvider(provider: SubagentProvider): () => Promise | void +registerProvider(provider: SubagentProvider): () => void getProvider(name: string): SubagentProvider | undefined list(): string[] async start(name: string, request: SubagentStartRequest): Promise @@ -251,9 +251,9 @@ Source: [`packages/subagent/subagent/src/index.ts:123`](../../packages/subagent/ Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, named prompt variables, and owner-final contributions; the agent loop calls `assemble(context)` once per step. Registers the harness-owned `harness:identity` and `deployment:persona` sections itself (see Config.persona). ```ts cordis-catalog -section(section: PromptSection): () => Promise | void -tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void -variable(name: string, provider: (context: AssembleContext) => string | undefined): () => Promise | void +section(section: PromptSection): () => void +tools(provider: (context: AssembleContext) => ToolProviderResult): () => void +variable(name: string, provider: (context: AssembleContext) => string | undefined): () => void async assemble(context: AssembleContext = {}): Promise ``` @@ -266,9 +266,9 @@ Tool registry (`ctx.tools`): tool plugins register definitions; the agent loop e Two registration layers (`@deepseek-ai/dsh-scope`): a registration through a plain plugin context is GLOBAL (visible to every agent); one through a scoped context (`agent.ctx`) is filed in that scope's layer — visible to that agent alone, disposed with the scope, and SHADOWING a global tool of the same name for that agent (most-specific-wins; within one layer a duplicate name still throws). restrict masks the global layer per scope. One private visibility resolver feeds prompt assembly, get, and execute — and, under a non-native mode, the SDK section and `run_code`'s bindings — so what the model is shown, what a presenter renders, what a program can call, and what dispatches can never disagree. ```ts cordis-catalog -register(definition: ToolDefinition): () => Promise | void -restrict(filter: ToolRestriction): () => Promise | void -guard(guard: ToolGuard): () => Promise | void +register(definition: ToolDefinition): () => void +restrict(filter: ToolRestriction): () => void +guard(guard: ToolGuard): () => void get(name: string, scope?: ScopeKey): ToolDefinition | undefined schemas(scope?: ScopeKey): ToolSchema[] async execute(exec: ToolExecutionInput): Promise diff --git a/docs/core-data-structures/tools.md b/docs/core-data-structures/tools.md index 4785de84a3..46c32a192f 100644 --- a/docs/core-data-structures/tools.md +++ b/docs/core-data-structures/tools.md @@ -190,7 +190,7 @@ type PostToolDecision = | { kind: 'block'; feedback: ContentBlock[]; additionalContext?: HookContext } ``` -Call `next()` to delegate to the default (allow / dispatch / accept-unchanged), or return a decision/result to short-circuit. A `pre-execute` `deny` skips dispatch and yields an `isError` result. An `ask` resolves through the optional approval seam: only `allowed-once` proceeds, while every non-grant, missing channel/service, or agent-less request becomes a normalized denial. A registered `ToolGuard` then runs and can still impose a final denial. Input rewrite is deliberately NOT offered on `PreToolDecision` because it would desync the pre-execution audit/history/UI from what ran. A `post-execute` `accept` may replace the model-facing `content`; a `block` turns the call into an `isError` whose content is the corrective `feedback`. The awaited `tools/result` notification then receives the frozen execution identity and a deep-frozen result snapshot after every wrapper, post decision, and outer error catch; observers cannot transform the outcome or race each other through payload mutation, and one observer failure neither changes the result nor starves peers. An unregistered tool routes through the same catch as a tool-thrown error, so both failure classes get a structured `{ name, code }` (`ToolNotFoundError` → `UNKNOWN_TOOL`) — the loop records a failed tool call instead of failing the whole turn. +Call `next()` to delegate to the default (allow / dispatch / accept-unchanged), or return a decision/result to short-circuit. A `pre-execute` `deny` skips dispatch and yields an `isError` result. An `ask` resolves through the optional approval seam: only `allowed-once` proceeds, while every non-grant, missing channel/service, or agent-less request becomes a normalized denial. A registered `ToolGuard` then runs and can still impose a final denial. Input rewrite is deliberately NOT offered on `PreToolDecision` because it would desync the pre-execution audit/history/UI from what ran. A `post-execute` `accept` may replace the model-facing `content`; a `block` turns the call into an `isError` whose content is the corrective `feedback`. The synchronous `tools/result` notification then receives the frozen execution identity and a deep-frozen result snapshot after every wrapper, post decision, and outer error catch; observers cannot transform the outcome or race each other through payload mutation, and one observer failure neither changes the result nor starves peers. An unregistered tool routes through the same catch as a tool-thrown error, so both failure classes get a structured `{ name, code }` (`ToolNotFoundError` → `UNKNOWN_TOOL`) — the loop records a failed tool call instead of failing the whole turn. ## The structured-output schema subset diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index aac25e71b9..654ccd27c0 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -9,7 +9,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | --- | --- | --- | --- | --- | | `agent/created` | `emit` | [`packages/core/agent/src/types.ts:316`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:331`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`stdio-agent`](../packages/ui/stdio-agent) | -| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:606`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | +| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:605`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | | `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:438`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic), [`user-approval`](../packages/ui/user-approval) | | `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:456`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | | `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:360`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - | @@ -19,7 +19,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `agent/status` | `emit` | [`packages/core/agent/src/types.ts:345`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`invariants`](../packages/support/invariants), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`stdio-agent`](../packages/ui/stdio-agent) | | `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:552`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - | | `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:570`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `agent/turn-stop` | `serial` | [`packages/core/agent/src/types.ts:589`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | +| `agent/turn-stop` | `serial` | [`packages/core/agent/src/types.ts:588`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | `approval/request` | `waterfall` | [`packages/ui/user-approval/src/index.ts:70`](../packages/ui/user-approval/src/index.ts) | [`user-approval`](../packages/ui/user-approval) (`waterfall`) | [`acp`](../packages/ui/acp) | | `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:123`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) | | `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:138`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) | @@ -41,7 +41,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:128`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`timeout-policy`](../packages/timeout/timeout-policy) | | `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:148`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | | `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:101`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | -| `tools/result` | `parallel` | [`packages/core/tools/src/index.ts:163`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`events.dispatch`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | +| `tools/result` | `emit` | [`packages/core/tools/src/index.ts:163`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`events.dispatch`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) | | `workflow/agent-end` | `emit` | [`packages/workflow/workflow/src/index.ts:96`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/agent-start` | `emit` | [`packages/workflow/workflow/src/index.ts:85`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | | `workflow/end` | `emit` | [`packages/workflow/workflow/src/index.ts:106`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | - | diff --git a/docs/rfc/implemented/architecture/2026-06-11-microkernel-event-taxonomy.md b/docs/rfc/implemented/architecture/2026-06-11-microkernel-event-taxonomy.md index 80b9b86e2a..8293924d37 100644 --- a/docs/rfc/implemented/architecture/2026-06-11-microkernel-event-taxonomy.md +++ b/docs/rfc/implemented/architecture/2026-06-11-microkernel-event-taxonomy.md @@ -12,8 +12,8 @@ Pure Cordis event taxonomy. The loop's extension seams are typed events with del - **waterfall** (around-middleware) where plugins transform, veto, or wrap: `agent/prompt-submit`, `agent/request`, `agent/step-result`, `agent/turn-continuation`, `tools/pre-execute`, `tools/execute`, `tools/post-execute`, `llm/stream`, `system-prompt/assemble`. - **serial** (awaited in listener order; a bail value stops later listeners) for ordered checkpoints: every `agent/pre-step` listener runs when all abstain, while the first stop returned from `agent/turn-stop` makes the terminal decision final. -- **parallel** (awaited fan-out) where every listener must get an independent chance: the `session/flush` durability checkpoint and the immutable observe-only `tools/result` notification. -- **emit** (synchronous fire-and-forget) for notifications: turn/step boundaries, stream chunks, lifecycle, and errors. +- **parallel** (awaited fan-out) where every listener must get an independent chance: the `session/flush` durability checkpoint. +- **emit** (synchronous fire-and-forget) for notifications: turn/step boundaries, stream chunks, lifecycle, errors, and the contained immutable `tools/result` observation. The event vocabulary lives in interface packages (dsh-agent declares the agent/* events); `@deepseek-ai/dsh-agent-loop` is the only concrete loop plugin and is itself swappable — nothing outside it may depend on it. diff --git a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md index 76c40805f8..dcff4d3220 100644 --- a/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md +++ b/docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md @@ -135,12 +135,6 @@ flowchart TB detach --> revoke["Dispose the agent scope"] ``` -### Subagent controls are an independent feature - -In-process subagents consume agent scope by installing their local composition during unpublished setup. Their optional persona, live global-tool filter, and absolute depth cap are not intrinsic scope semantics; the [subagent composition-controls RFC](../feature/2026-07-12-subagent-persona-tool-filter-and-depth.md) defines those controls, provider capability checks, and dynamic tool behavior. - -`inheritsParentContext` describes conversation-history seeding only. It says nothing about Cordis scope, injected services, tools, or authority. - ## Security and authority are non-goals Agent scopes compose trusted same-process registrations. They do not sandbox plugins, define a parent-to-child authority lattice, freeze grants at creation, or guarantee that a child can do no more than its parent. diff --git a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md index 786dce250e..2aeea1e48f 100644 --- a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md +++ b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md @@ -218,7 +218,7 @@ A fresh registry-assigned Symbol provides collision-free execution identity with Arguments are materialized once where model/tool JSON enters the pipeline. Pre-, around-, and post-execute listeners operate on the typed execution and decisions. Call ID correlation, approval, monotonic guards, and Code Mode nesting remain explicit relational checks. -After the last post-execute listener, the registry materializes and freezes the accepted final result once. Every `tools/result` observer receives that exact committed object, and observer failures are awaited and contained individually. An outer pipeline failure is normalized into a committed error result, so observers can discard staged work against the same authoritative boundary. +After the last post-execute listener, the registry materializes and freezes the accepted final result once. Every synchronous `tools/result` observer receives that exact committed object, and observer failures are contained individually. An outer pipeline failure is normalized into a committed error result, so observers can discard staged work against the same authoritative boundary. ### Contribution-owned finality protects only named invariants diff --git a/docs/rfc/implemented/feature/2026-06-30-interception-seams.md b/docs/rfc/implemented/feature/2026-06-30-interception-seams.md index 52d7e2b425..cb653c2519 100644 --- a/docs/rfc/implemented/feature/2026-06-30-interception-seams.md +++ b/docs/rfc/implemented/feature/2026-06-30-interception-seams.md @@ -26,7 +26,7 @@ Every call follows one ordered pipeline: `tools/pre-execute` → monotonic guard - **`ctx.tools.guard()`** installs synchronous scope-aware policy after the whole pre-execute waterfall. A guard may deny or abstain, never force-allow, so listener ordering cannot resurrect an operation that a final invariant forbids. - **`tools/execute`** is the around-dispatch waterfall for timeout, retry, and metrics plugins. A wrapper delegates to core dispatch with `next()`, may add, replace, or remove only `exec.signal` before doing so, and receives the already-normalized result of a thrown or unknown tool; returning its own valid result short-circuits dispatch. - **`tools/post-execute`** is the inspect/transform waterfall. Its `PostToolDecision` accepts, blocks with feedback, optionally replaces content, or attaches `additionalContext`; in-place mutation of the result is not a transform channel, because the registry rebuilds the outcome from a protected snapshot plus the returned decision. -- **`tools/result`** is the awaited parallel notification after every transform, lossless-JSON materialization, and the outer error boundary. It receives the same frozen execution identity and an immutable snapshot of the authoritative result; observer failures are contained per listener and cannot change or reject `ToolRegistry.execute()`'s returned outcome. +- **`tools/result`** is the synchronous contained notification after every transform, lossless-JSON materialization, and the outer error boundary. It receives the same frozen execution identity and an immutable snapshot of the authoritative result; observer failures are contained per listener and cannot change or reject `ToolRegistry.execute()`'s returned outcome. Core dispatch and the tool body sit inside normalization boundaries, so tool, listener, malformed-result, non-JSON result, and identity-shape failures resolve as JSON-safe `isError` results rather than escaping the turn. A post-execute listener can therefore inspect a thrown tool, and a final observer sees exactly what the caller receives and the session log can persist. diff --git a/docs/tool-execution-pipeline.md b/docs/tool-execution-pipeline.md index 23dee7a91f..6f5c8890bf 100644 --- a/docs/tool-execution-pipeline.md +++ b/docs/tool-execution-pipeline.md @@ -19,7 +19,7 @@ flowchart TD fsGate["fs/write-intent or fs/edit-intent
tool-fs mutations only"] owned["Tool-owned session events
todo/write, fs/observed, hook/invoked, hook/result, tool/code-dispatch"] post["tools/post-execute waterfall
accept, block, replace, add context"] - final["tools/result parallel notification
frozen authoritative outcome"] + final["tools/result synchronous notification
frozen authoritative outcome"] context["Buffered additionalContext
context/message after all tool results"] toolResult["Session event: tool/result
single model-facing outcome"] allResults["All calls in the step settled
and tool/result events recorded"] @@ -48,6 +48,6 @@ flowchart TD allResults --> context ``` -Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate; hook bridges and approval-triggering permission policy enter through the generic pre/post tool waterfalls, while `ctx.approval` resolves an `ask` before the monotonic guards; owner policy that must not be reordered uses registered guards; and around-dispatch concerns like the tool-call timeout policy (`@deepseek-ai/dsh-timeout-policy`) wrap core dispatch on `tools/execute`. The awaited `tools/result` notification observes the immutable final outcome after every transform, lossless-JSON validation, and outer error normalization. That split lets the same hooks observe bash, fs, web, todo, skill, and subagent calls without coupling those tools to one policy service. Code Mode rides the whole pipeline twice over: `run_code` is the reserved registry-owned transport whose body enters the pipeline, and each tool call its program makes re-enters `ctx.tools.execute()` — serialized one at a time, carrying the outer execution's opaque token for correlation, and logged as a `tool/code-dispatch` session event, with a deny surfacing to the program as a binding rejection (a sub-call's `additionalContext` is deliberately dropped — no safe outlet mid-run preserves call/result adjacency). +Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate; hook bridges and approval-triggering permission policy enter through the generic pre/post tool waterfalls, while `ctx.approval` resolves an `ask` before the monotonic guards; owner policy that must not be reordered uses registered guards; and around-dispatch concerns like the tool-call timeout policy (`@deepseek-ai/dsh-timeout-policy`) wrap core dispatch on `tools/execute`. The synchronous `tools/result` notification observes the immutable final outcome after every transform, lossless-JSON validation, and outer error normalization. That split lets the same hooks observe bash, fs, web, todo, skill, and subagent calls without coupling those tools to one policy service. Code Mode rides the whole pipeline twice over: `run_code` is the reserved registry-owned transport whose body enters the pipeline, and each tool call its program makes re-enters `ctx.tools.execute()` — serialized one at a time, carrying the outer execution's opaque token for correlation, and logged as a `tool/code-dispatch` session event, with a deny surfacing to the program as a binding rejection (a sub-call's `additionalContext` is deliberately dropped — no safe outlet mid-run preserves call/result adjacency). Maintenance mode: curated Mermaid flow; exact tool schemas and event signatures live in generated catalogs. diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts index 3ee6d1081f..4b5d614ac4 100644 --- a/packages/cordis/tool-cordis/src/api-catalog.ts +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -65,10 +65,10 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ key: 'agents', summary: 'Agent registry (`ctx.agents`): tracks live agents so UI, hook, and orchestrator plugins can find them without depending on the concrete loop package.', methods: [ - 'setFactory(factory: AgentFactory): () => Promise | void', + 'setFactory(factory: AgentFactory): () => void', 'async create(options: CreateAgentOptions): Promise', 'async resume(options: ResumeAgentOptions): Promise', - 'register(agent: Agent): () => Promise | void', + 'register(agent: Agent): () => void', 'enter(agent: Agent): () => void', 'announce(agent: Agent): void', 'get(id: AgentId): Agent | undefined', @@ -169,8 +169,8 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ key: 'skills', summary: 'Registry of skill providers.', methods: [ - 'registerProvider(provider: SkillProvider): () => Promise | void', - 'register(skill: SkillRegistration): () => Promise | void', + 'registerProvider(provider: SkillProvider): () => void', + 'register(skill: SkillRegistration): () => void', 'async list(options: SkillLookupOptions = {}): Promise', 'async get(name: string, options: SkillLookupOptions = {}): Promise', ], @@ -179,7 +179,7 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ key: 'subagents', summary: 'Named provider registry and capability-checked start surface.', methods: [ - 'registerProvider(provider: SubagentProvider): () => Promise | void', + 'registerProvider(provider: SubagentProvider): () => void', 'getProvider(name: string): SubagentProvider | undefined', 'list(): string[]', 'async start(name: string, request: SubagentStartRequest): Promise', @@ -189,9 +189,9 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ key: 'systemPrompt', summary: 'Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, named prompt variables, and owner-final contributions; the agent loop calls `assemble(context)` once per step.', methods: [ - 'section(section: PromptSection): () => Promise | void', - 'tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void', - 'variable(name: string, provider: (context: AssembleContext) => string | undefined): () => Promise | void', + 'section(section: PromptSection): () => void', + 'tools(provider: (context: AssembleContext) => ToolProviderResult): () => void', + 'variable(name: string, provider: (context: AssembleContext) => string | undefined): () => void', 'async assemble(context: AssembleContext = {}): Promise', ], }, @@ -199,9 +199,9 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ key: 'tools', summary: 'Tool registry (`ctx.tools`): tool plugins register definitions; the agent loop executes calls through the `tools/pre-execute` → guards → `tools/execute` → `tools/post-execute` → `tools/result` pipeline.', methods: [ - 'register(definition: ToolDefinition): () => Promise | void', - 'restrict(filter: ToolRestriction): () => Promise | void', - 'guard(guard: ToolGuard): () => Promise | void', + 'register(definition: ToolDefinition): () => void', + 'restrict(filter: ToolRestriction): () => void', + 'guard(guard: ToolGuard): () => void', 'get(name: string, scope?: ScopeKey): ToolDefinition | undefined', 'schemas(scope?: ScopeKey): ToolSchema[]', 'async execute(exec: ToolExecutionInput): Promise', @@ -311,7 +311,7 @@ export const EVENT_API: readonly EventApiEntry[] = [ { name: 'agent/turn-stop', mode: 'serial', - signature: '\'agent/turn-stop\'(this: Scoped, agent: Agent, turn: number): Promise | ContinuationStop | undefined', + signature: '\'agent/turn-stop\'(this: Scoped, agent: Agent, turn: number): ContinuationStop | undefined', summary: 'Serial terminal-stop checkpoint after the ordinary `agent/turn-continuation` waterfall, any `continue.reason`, and the pending-steering continuation override have been folded.', }, { @@ -442,9 +442,9 @@ export const EVENT_API: readonly EventApiEntry[] = [ }, { name: 'tools/result', - mode: 'parallel', - signature: '\'tools/result\'(this: Scoped, exec: Readonly, result: Readonly): Promise | void', - summary: 'Awaited notification of the authoritative FINAL tool outcome, after the complete pre/execute/post pipeline, final lossless-JSON validation, and outer error normalization.', + mode: 'emit', + signature: '\'tools/result\'(this: Scoped, exec: Readonly, result: Readonly): undefined', + summary: 'Synchronous notification of the authoritative FINAL tool outcome, after the complete pre/execute/post pipeline, final lossless-JSON validation, and outer error normalization.', }, { name: 'workflow/agent-end', diff --git a/packages/cordis/tool-cordis/src/guard.ts b/packages/cordis/tool-cordis/src/guard.ts index 10c2255141..3e1c70e461 100644 --- a/packages/cordis/tool-cordis/src/guard.ts +++ b/packages/cordis/tool-cordis/src/guard.ts @@ -230,7 +230,7 @@ export function sandboxDefineTool(options: Parameters[0]): To * @param tool - a definition produced by {@link sandboxDefineTool}; anything else is rejected. * @returns the registry disposer for the registration. */ -export function sandboxRegisterTool(ctx: Context, tool: unknown): () => Promise | void { +export function sandboxRegisterTool(ctx: Context, tool: unknown): () => void { assertDynamicTool(tool) return ctx.tools.register(tool) } @@ -264,7 +264,7 @@ function sandboxTools(ctx: Context): Record { // view for today's global mounts, its agent's view if a mount ever runs // under an agent scope. return { - register: (tool: unknown): (() => Promise | void) => sandboxRegisterTool(ctx, tool), + register: (tool: unknown): (() => void) => sandboxRegisterTool(ctx, tool), schemas: () => ctx.tools.schemas(scopeOf(ctx)), get: (name: string) => ctx.tools.schemas(scopeOf(ctx)).find(schema => schema.name === name), } diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index 290c5d90bf..cfe4976af4 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -10,7 +10,7 @@ Tracks live agents so UI, hook, and orchestrator plugins can find them without i The scoped-registration surface: `Agent.ctx` is the agent's scope context (`dsh-scope`, key = the agent) — register tools/sections/variables/listeners through it for that agent alone, all unwound on disposal. `agentEvents(ctx, agent)` is the fused dispatcher for ordinary agent-subject operations (carrier + injected subject in one move); its notification mode invokes every listener and contains both synchronous throws and returned-promise rejections. The registry lifecycle pair reuses one stable routing carrier. `assembleContextFor(agent)` builds the per-agent assembly context (`agent` + `scope` together). `CreateAgentOptions.setup(agentCtx)` and `ResumeAgentOptions.setup(agentCtx)` compose a fresh or resumed agent's scoped world while both objects remain unpublished. Setup is trusted, composition-only same-process code: drive the agent only after creation resolves. -- `ctx.agents.register(agent: Agent): () => Promise | void` — record an **already-constructed** agent. Disposed with the calling fiber. +- `ctx.agents.register(agent: Agent): () => void` — record an **already-constructed** agent. Disposed with the calling fiber. - Advanced ordered lifecycle: `enter(agent): () => void` performs the authoritative ID collision check and inserts without announcing; `announce(agent)` emits `agent/created` exactly once. A detach requested synchronously by a creation listener is deferred until that dispatch unwinds, and every detach checks the captured entry object, so a stale capability cannot delete a later same-ID replacement. The async factory uses this split; ordinary plugins use `register()`. - `ctx.agents.get(id: AgentId): Agent | undefined` - `ctx.agents.list(): Agent[]` @@ -19,7 +19,7 @@ The scoped-registration surface: `Agent.ctx` is the agent's scope context (`dsh- Agent *creation* is provided by the plugin implementing `AgentFactory` (`dsh-agent-loop`), registered via `setFactory`. This keeps creation on the `dsh-agent` interface so consumers (UI, the ACP bridge) program against `ctx.agents` without depending on the concrete loop package. The registry canonicalizes an already traced Service to its concrete target and re-traces each call through the caller's context; this avoids nested Cordis shadows while passing an explicit caller-bound `ownerCtx` to plain factories. -- `ctx.agents.setFactory(factory: AgentFactory): () => Promise | void` — register the creation factory (the loop calls this on construction). Throws on a second factory; the slot clears on dispose. +- `ctx.agents.setFactory(factory: AgentFactory): () => void` — register the creation factory (the loop calls this on construction). Throws on a second factory; the slot clears on dispose. - `ctx.agents.create(options: CreateAgentOptions): Promise` — create a session and agent, await optional setup while unpublished, then publish through final `SessionStore.enter()` and `AgentRegistry.enter()` checks. Concurrent same-ID creation is unsupported: more than one operation may prepare, but only one can enter; every loser rolls its private scope/session/driver back. An optional creation-only `signal` cancels unpublished setup and is detached before the handle is returned; later cancellation uses `handle.dispose()` or `agent.cancel()`. Publication is rollback-covered and every delivered creation edge is paired during rollback. Rejects if no factory is registered. - `ctx.agents.resume(options: ResumeAgentOptions): Promise` — load a persisted session ([session persistence](../../../docs/rfc/implemented/architecture/2026-06-14-session-persistence.md)), mint a fresh unpublished agent scope, await optional setup, and use the same final-entry publication sequence. Its optional `signal` is likewise creation-only. Rejects if no factory is registered or session persistence is unconfigured. diff --git a/packages/core/agent/src/index.ts b/packages/core/agent/src/index.ts index 42b9d13e35..b77e3e8a60 100644 --- a/packages/core/agent/src/index.ts +++ b/packages/core/agent/src/index.ts @@ -228,7 +228,7 @@ export class AgentRegistry extends Service { * Cordis effect disposer (single-shot): composite (generator) effects may * yield it directly — exact identity nests the teardown in order. */ - setFactory(factory: AgentFactory): () => Promise | void { + setFactory(factory: AgentFactory): () => void { const dispose = this.ctx.effect(() => { if (this.factory !== undefined) throw new Error('an agent factory is already registered') // Avoid stacking two Cordis shadow layers when a caller passes a Service @@ -242,6 +242,7 @@ export class AgentRegistry extends Service { // caller's composite effect can yield it for in-order teardown; the // loop's constructor effect returns it directly, identity-nesting the // registration under that effect. + // eslint-disable-next-line @typescript-eslint/no-misused-promises -- synchronous cleanup; direct return preserves disposer identity return dispose } @@ -305,11 +306,12 @@ export class AgentRegistry extends Service { * owner unload, unregistering the agent (and emitting `agent/disposed`) * while its final turn is still draining. */ - register(agent: Agent): () => Promise | void { + register(agent: Agent): () => void { const dispose = this.ctx.effect(function* (this: AgentRegistry) { yield this.enter(agent) this.announce(agent) }.bind(this), 'agents.register()') + // eslint-disable-next-line @typescript-eslint/no-misused-promises -- synchronous cleanup; direct return preserves disposer identity return dispose } diff --git a/packages/core/agent/src/types.ts b/packages/core/agent/src/types.ts index 9350a5cc03..f85cf3db2c 100644 --- a/packages/core/agent/src/types.ts +++ b/packages/core/agent/src/types.ts @@ -575,8 +575,7 @@ declare module 'cordis' { * returns `{ action: 'stop' }` to make this turn terminal, or `undefined` * to abstain. Terminal stop is monotonic: listener order and steering * cannot resume the turn, and pending steering is discarded rather than - * becoming another step or turn. A malformed non-undefined result fails - * the turn closed. + * becoming another step or turn. * @param agent - the agent whose composed continuation outcome may be stopped. * @param turn - the turn at its terminal-stop checkpoint. * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): a listener registered @@ -586,7 +585,7 @@ declare module 'cordis' { * `scopeTarget`/`agentEvents`. * @mode serial */ - 'agent/turn-stop'(this: Scoped, agent: Agent, turn: number): Promise | ContinuationStop | undefined + 'agent/turn-stop'(this: Scoped, agent: Agent, turn: number): ContinuationStop | undefined // ---- error notifications (emit) ---- /** diff --git a/packages/core/agent/tests/agent.spec.ts b/packages/core/agent/tests/agent.spec.ts index cd40ba59e3..5d541d56a8 100644 --- a/packages/core/agent/tests/agent.spec.ts +++ b/packages/core/agent/tests/agent.spec.ts @@ -1,8 +1,9 @@ -import { describe, expect, it } from 'vitest' +import { describe, expect, expectTypeOf, it } from 'vitest' import { Context, Service, symbols } from 'cordis' +import type { Events } from 'cordis' import { Session, SessionId } from '@deepseek-ai/dsh-session' import AgentRegistry, { AgentId, agentEvents } from '@deepseek-ai/dsh-agent' -import type { Agent, AgentFactory, CreateAgentOptions, ResumeAgentOptions } from '@deepseek-ai/dsh-agent' +import type { Agent, AgentFactory, ContinuationStop, CreateAgentOptions, ResumeAgentOptions } from '@deepseek-ai/dsh-agent' function stubAgent(rawId: string): Agent { const id = AgentId(rawId) @@ -21,6 +22,14 @@ function stubAgent(rawId: string): Agent { } describe('AgentRegistry', () => { + it('keeps terminal stop decisions synchronous', () => { + type TurnStopListener = Events['agent/turn-stop'] + type AsyncTurnStopListener = () => Promise + + expectTypeOf().not.toExtend() + expectTypeOf>().toEqualTypeOf() + }) + it('registers exact entries, emits lifecycle events, and unregisters on owner disposal', async () => { const ctx = new Context() await ctx.plugin(AgentRegistry) @@ -34,7 +43,7 @@ describe('AgentRegistry', () => { expect(ctx.agents.list()).toEqual([agent]) expect(() => ctx.agents.register(stubAgent('a1'))).toThrow(/already registered/) - await dispose() + dispose() expect(ctx.agents.get(agent.id)).toBeUndefined() expect(lifecycle).toEqual(['created:a1', 'disposed:a1']) }) @@ -65,7 +74,7 @@ describe('AgentRegistry', () => { const dispose = ctx.agents.register(stubAgent('contained')) await Promise.resolve() - await dispose() + dispose() await Promise.resolve() expect(heard).toEqual(['contained']) diff --git a/packages/core/system-prompt/README.md b/packages/core/system-prompt/README.md index 270a016cf3..009dc6b3fe 100644 --- a/packages/core/system-prompt/README.md +++ b/packages/core/system-prompt/README.md @@ -13,9 +13,9 @@ System prompt assembly registry. Plugins contribute ordered text sections, tool- ### Public API -- `ctx.systemPrompt.section(section: PromptSection): () => Promise | void` Contribute a section. The layer is the calling context's scope: `agent.ctx` contributes to that agent alone, shadowing a same-named global section there. Duplicate names within one layer and non-finite orders throw. `ownerFinal: true` restores this section's canonical definition after the complete waterfall and reserves a global section against scoped shadows. Disposed with the calling fiber. -- `ctx.systemPrompt.tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void` Contribute tool schemas, evaluated at each assembly with that assembly's context. `ToolProviderResult` = `{ schemas, knownNames?, ownerFinalNames? }`: `schemas` is the post-restriction visible set; `knownNames` is the pre-restriction universe used by `toolOrder`; `ownerFinalNames` makes those tools' canonical presence or absence survive the waterfall. A provider must not return a schema named `TOOL_ORDER_REST`. Scoped providers are consulted only for their scope's assemblies. Disposed with the calling fiber. -- `ctx.systemPrompt.variable(name: string, provider: (context) => string | undefined): () => Promise | void` Contribute a prompt variable, referenced from section text as `{{name}}`. Scoped variables shadow a same-named global for that agent. Duplicate-in-layer or unreferenceable names throw; `undefined` means "no value for this assembly". Disposed with the calling fiber. +- `ctx.systemPrompt.section(section: PromptSection): () => void` Contribute a section. The layer is the calling context's scope: `agent.ctx` contributes to that agent alone, shadowing a same-named global section there. Duplicate names within one layer and non-finite orders throw. `ownerFinal: true` restores this section's canonical definition after the complete waterfall and reserves a global section against scoped shadows. Disposed with the calling fiber. +- `ctx.systemPrompt.tools(provider: (context: AssembleContext) => ToolProviderResult): () => void` Contribute tool schemas, evaluated at each assembly with that assembly's context. `ToolProviderResult` = `{ schemas, knownNames?, ownerFinalNames? }`: `schemas` is the post-restriction visible set; `knownNames` is the pre-restriction universe used by `toolOrder`; `ownerFinalNames` makes those tools' canonical presence or absence survive the waterfall. A provider must not return a schema named `TOOL_ORDER_REST`. Scoped providers are consulted only for their scope's assemblies. Disposed with the calling fiber. +- `ctx.systemPrompt.variable(name: string, provider: (context) => string | undefined): () => void` Contribute a prompt variable, referenced from section text as `{{name}}`. Scoped variables shadow a same-named global for that agent. Duplicate-in-layer or unreferenceable names throw; `undefined` means "no value for this assembly". Disposed with the calling fiber. - `ctx.systemPrompt.assemble(context?: AssembleContext): Promise` Assemble the prompt for one caller: the global layer merged with `context.scope`'s layer, with tool schemas detached before the transform seam. Runs through the scope-filtered `system-prompt/assemble` waterfall, then restores owner-final contributions from a private pre-waterfall snapshot. Restored entries keep canonical relative order without undoing listener reordering of ordinary entries. Rejects when a configured `toolOrder` names a tool outside the providers' `knownNames` universe, or when a provider returns the reserved rest-entry name. ### Live events diff --git a/packages/core/system-prompt/src/index.ts b/packages/core/system-prompt/src/index.ts index b1946c59e1..0adbce0184 100644 --- a/packages/core/system-prompt/src/index.ts +++ b/packages/core/system-prompt/src/index.ts @@ -434,7 +434,7 @@ export class SystemPrompt extends Service { * Cordis effect disposer (single-shot): composite (generator) effects may * yield it directly — exact identity nests the teardown in order. */ - section(section: PromptSection): () => Promise | void { + section(section: PromptSection): () => void { if (!Number.isFinite(section.order)) { throw new TypeError(`prompt section "${section.name}" order must be a finite number`) } @@ -481,8 +481,9 @@ export class SystemPrompt extends Service { // effect that owns a teardown ORDER must be able to yield THIS function — // cordis nests a disposer out of the fiber's concurrent sibling list by // exact function identity, so a wrapper would silently break the nesting - // (the agents.register() lesson). Fire-and-forget callers may still - // discard the (always-resolved) promise. + // (the agents.register() lesson). Cleanup is synchronous because this + // registration installs only synchronous state and notifications. + // eslint-disable-next-line @typescript-eslint/no-misused-promises -- synchronous cleanup; direct return preserves disposer identity return dispose } @@ -502,7 +503,7 @@ export class SystemPrompt extends Service { * Cordis effect disposer (single-shot): composite (generator) effects may * yield it directly — exact identity nests the teardown in order. */ - tools(provider: (context: AssembleContext) => ToolProviderResult): () => Promise | void { + tools(provider: (context: AssembleContext) => ToolProviderResult): () => void { const scope = scopeOf(this.ctx) const dispose = this.ctx.effect(function* (this: SystemPrompt) { const layer = scope === undefined @@ -527,8 +528,9 @@ export class SystemPrompt extends Service { // effect that owns a teardown ORDER must be able to yield THIS function — // cordis nests a disposer out of the fiber's concurrent sibling list by // exact function identity, so a wrapper would silently break the nesting - // (the agents.register() lesson). Fire-and-forget callers may still - // discard the (always-resolved) promise. + // (the agents.register() lesson). Cleanup is synchronous because this + // registration installs only synchronous state and notifications. + // eslint-disable-next-line @typescript-eslint/no-misused-promises -- synchronous cleanup; direct return preserves disposer identity return dispose } @@ -550,7 +552,7 @@ export class SystemPrompt extends Service { * Cordis effect disposer (single-shot): composite (generator) effects may * yield it directly — exact identity nests the teardown in order. */ - variable(name: string, provider: (context: AssembleContext) => string | undefined): () => Promise | void { + variable(name: string, provider: (context: AssembleContext) => string | undefined): () => void { if (!VARIABLE_NAME.test(name)) { throw new Error(`invalid prompt variable name "${name}" (must match ${String(VARIABLE_NAME)})`) } @@ -581,8 +583,9 @@ export class SystemPrompt extends Service { // effect that owns a teardown ORDER must be able to yield THIS function — // cordis nests a disposer out of the fiber's concurrent sibling list by // exact function identity, so a wrapper would silently break the nesting - // (the agents.register() lesson). Fire-and-forget callers may still - // discard the (always-resolved) promise. + // (the agents.register() lesson). Cleanup is synchronous because this + // registration installs only synchronous state and notifications. + // eslint-disable-next-line @typescript-eslint/no-misused-promises -- synchronous cleanup; direct return preserves disposer identity return dispose } diff --git a/packages/core/system-prompt/tests/scoped.spec.ts b/packages/core/system-prompt/tests/scoped.spec.ts index 329a66813f..4becf5192a 100644 --- a/packages/core/system-prompt/tests/scoped.spec.ts +++ b/packages/core/system-prompt/tests/scoped.spec.ts @@ -116,7 +116,7 @@ describe('scoped tool providers and toolOrder × restriction', () => { const ctx = await mount() const scope = await mintScope(ctx, 'child') const dispose = scope.ctx.systemPrompt.tools(() => ({ schemas: [schema('scoped_tool')] })) - await dispose() + dispose() const after = await ctx.systemPrompt.assemble({ scope: scopeKeyOf(scope) }) expect(after.tools.map(t => t.name)).toEqual([]) // Re-registering through the same scope starts a fresh layer. diff --git a/packages/core/system-prompt/tests/system-prompt.spec.ts b/packages/core/system-prompt/tests/system-prompt.spec.ts index 3417364613..dfdfef42dc 100644 --- a/packages/core/system-prompt/tests/system-prompt.spec.ts +++ b/packages/core/system-prompt/tests/system-prompt.spec.ts @@ -316,7 +316,7 @@ describe('SystemPrompt', () => { // registration emits change expect(changeCount).toBe(1) - await dispose() + dispose() // disposal emits change again expect(changeCount).toBe(2) }) @@ -341,7 +341,7 @@ describe('SystemPrompt', () => { const dispose = ctx.systemPrompt.section({ name: 'direct', order: 0, text: 'direct section' }) expect(contributed(await ctx.systemPrompt.assemble())).toHaveLength(1) - await dispose() + dispose() expect(contributed(await ctx.systemPrompt.assemble())).toHaveLength(0) }) @@ -352,7 +352,7 @@ describe('SystemPrompt', () => { const dispose = ctx.systemPrompt.tools(() => ({ schemas: [{ name: 'direct-tool', description: '', parameters: {} }] })) expect((await ctx.systemPrompt.assemble()).tools).toHaveLength(1) - await dispose() + dispose() expect((await ctx.systemPrompt.assemble()).tools).toHaveLength(0) }) @@ -370,7 +370,7 @@ describe('SystemPrompt', () => { // A provider returning undefined records "registered but no value here". expect((await ctx.systemPrompt.assemble()).variables).toEqual({ who: undefined }) - await dispose() + dispose() expect(changeCount).toBe(2) expect((await ctx.systemPrompt.assemble()).variables).toEqual({}) }) diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index a50e35a4b4..f4416a312c 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -15,11 +15,11 @@ tools: ### Public API -- `ctx.tools.register(definition: ToolDefinition): () => Promise | void` Register a trusted typed same-process definition. The layer is the calling context's scope: a plain plugin context registers globally; an agent's `agent.ctx` registers for that agent alone, shadowing a same-named global tool there. Duplicate names within one layer throw; non-native modes also reject the reserved `run_code` transport name. `timeoutMs`, when present, must be positive and finite. `ownerFinal: true` makes the tool's canonical wire presence or absence survive prompt assembly listeners. Disposed with the calling fiber. -- `ctx.tools.restrict(filter: ToolRestriction): () => Promise | void` Scoped-only (throws on a plain context): mask the global end-capability surface for the calling agent — `allow` keeps only the listed global tools, `deny` removes them; multiple restrictions intersect; scope-local registrations are merged afterward. The readonly arrays compile once into private sets. Every listed name must exist in the current pre-restriction global registry; scope-local, unknown, and reserved `run_code` names fail loudly. A deny-list admits a later global tool unless it names that tool; an allow-list excludes later names; neither filters a later scope-local registration. `restrict({})` rejects. This is live registration composition, not a parent-derived authority ceiling; see the [agent-scope security non-goal](../../../docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md#security-and-authority-are-explicit-non-goals). +- `ctx.tools.register(definition: ToolDefinition): () => void` Register a trusted typed same-process definition. The layer is the calling context's scope: a plain plugin context registers globally; an agent's `agent.ctx` registers for that agent alone, shadowing a same-named global tool there. Duplicate names within one layer throw; non-native modes also reject the reserved `run_code` transport name. `timeoutMs`, when present, must be positive and finite. `ownerFinal: true` makes the tool's canonical wire presence or absence survive prompt assembly listeners. Disposed with the calling fiber. +- `ctx.tools.restrict(filter: ToolRestriction): () => void` Scoped-only (throws on a plain context): mask the global end-capability surface for the calling agent — `allow` keeps only the listed global tools, `deny` removes them; multiple restrictions intersect; scope-local registrations are merged afterward. The readonly arrays compile once into private sets. Every listed name must exist in the current pre-restriction global registry; scope-local, unknown, and reserved `run_code` names fail loudly. A deny-list admits a later global tool unless it names that tool; an allow-list excludes later names; neither filters a later scope-local registration. `restrict({})` rejects. This is live registration composition, not a parent-derived authority ceiling; see the [agent-scope security non-goal](../../../docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md#security-and-authority-are-explicit-non-goals). - `ctx.tools.get(name: string, scope?: ScopeKey): ToolDefinition | undefined` Resolution as one scope sees it (shadowing applied; a restricted-away global reads as absent) — presenters pass the calling agent so the card matches what executed. - `ctx.tools.schemas(scope?: ScopeKey): ToolSchema[]` Schemas of everything the scope can see (without the `execute` functions). The shipped tools' schemas are catalogued in [docs/tool-catalog.md](../../../docs/tool-catalog.md), generated by booting each tool plugin and harvesting this method (see [the tool-schema-catalog RFC](../../../docs/rfc/implemented/process/2026-07-02-tool-schema-catalog.md)). -- `ctx.tools.guard(guard: ToolGuard): () => Promise | void` Register a monotonic synchronous execution guard after `tools/pre-execute`: returning a reason denies the call, while `undefined` leaves it unchanged. A plain-context guard applies globally; an `agent.ctx` guard applies only to that agent. Later waterfall listeners cannot turn a guard denial back into permission. Disposed with the calling fiber. +- `ctx.tools.guard(guard: ToolGuard): () => void` Register a monotonic synchronous execution guard after `tools/pre-execute`: returning a reason denies the call, while `undefined` leaves it unchanged. A plain-context guard applies globally; an `agent.ctx` guard applies only to that agent. Later waterfall listeners cannot turn a guard denial back into permission. Disposed with the calling fiber. - `ctx.tools.execute(exec: ToolExecutionInput): Promise` Assign a fresh opaque correlation token, losslessly materialize and deep-freeze arguments once at the model/tool boundary, then run the call through `tools/pre-execute` → guards → `tools/execute` → `tools/post-execute`. Invalid arguments normalize through the same authoritative result path without reaching policy or the body. The final outcome is independently materialized and deep-frozen once before `tools/result`. Optional `signal` remains the operational field an around-dispatch wrapper may replace. ### Injected services diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index 84a1ec3c51..ab28324503 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -147,7 +147,7 @@ declare module 'cordis' { */ 'tools/post-execute'(this: Scoped, exec: ToolExecution, result: Readonly, next: () => Promise): Promise /** - * Awaited notification of the authoritative FINAL tool outcome, after the + * Synchronous notification of the authoritative FINAL tool outcome, after the * complete pre/execute/post pipeline, final lossless-JSON validation, and * outer error normalization. * Unlike the three waterfalls, this seam cannot transform the result: each @@ -158,9 +158,9 @@ declare module 'cordis' { * `exec.agent`, using the same carrier as the pipeline. * @param exec - the execution object that traversed the pipeline. * @param result - a deep-frozen snapshot of the final returned result. - * @mode parallel + * @mode emit */ - 'tools/result'(this: Scoped, exec: Readonly, result: Readonly): Promise | void + 'tools/result'(this: Scoped, exec: Readonly, result: Readonly): undefined /** * A tool was registered or unregistered, or a scoped restriction changed * (the available tool set changed — possibly for one scope only). An @@ -623,7 +623,7 @@ export class ToolRegistry extends Service { * Cordis effect disposer (single-shot): composite (generator) effects may * yield it directly — exact identity nests the teardown in order. */ - register(definition: ToolDefinition): () => Promise | void { + register(definition: ToolDefinition): () => void { const scope = scopeOf(this.ctx) const name = definition.name const timeoutMs = definition.timeoutMs @@ -669,8 +669,9 @@ export class ToolRegistry extends Service { // effect that owns a teardown ORDER must be able to yield THIS function — // cordis nests a disposer out of the fiber's concurrent sibling list by // exact function identity, so a wrapper would silently break the nesting - // (the agents.register() lesson). Fire-and-forget callers may still - // discard the (always-resolved) promise. + // (the agents.register() lesson). Cleanup is synchronous because this + // registration installs only synchronous state and notifications. + // eslint-disable-next-line @typescript-eslint/no-misused-promises -- synchronous cleanup; direct return preserves disposer identity return dispose } @@ -697,7 +698,7 @@ export class ToolRegistry extends Service { * Cordis effect disposer (single-shot): composite (generator) effects may * yield it directly — exact identity nests the teardown in order. */ - restrict(filter: ToolRestriction): () => Promise | void { + restrict(filter: ToolRestriction): () => void { const scope = scopeOf(this.ctx) if (scope === undefined) { throw new Error('tools.restrict() requires a scoped context (agent.ctx): a context-global restriction would mask every agent — deny the tool for the intended agent instead') @@ -737,8 +738,9 @@ export class ToolRegistry extends Service { // effect that owns a teardown ORDER must be able to yield THIS function — // cordis nests a disposer out of the fiber's concurrent sibling list by // exact function identity, so a wrapper would silently break the nesting - // (the agents.register() lesson). Fire-and-forget callers may still - // discard the (always-resolved) promise. + // (the agents.register() lesson). Cleanup is synchronous because this + // registration installs only synchronous state and notifications. + // eslint-disable-next-line @typescript-eslint/no-misused-promises -- synchronous cleanup; direct return preserves disposer identity return dispose } @@ -752,7 +754,7 @@ export class ToolRegistry extends Service { * @param guard - synchronous check; a returned string denies the execution. * @returns the exact disposer that unregisters the guard. */ - guard(guard: ToolGuard): () => Promise | void { + guard(guard: ToolGuard): () => void { const scope = scopeOf(this.ctx) const registration = { guard } const dispose = this.ctx.effect(function* (this: ToolRegistry) { @@ -763,6 +765,7 @@ export class ToolRegistry extends Service { if (scope !== undefined && layer.size === 0) this.scopedGuards.delete(scope) } }.bind(this), 'tools.guard()') + // eslint-disable-next-line @typescript-eslint/no-misused-promises -- synchronous cleanup; direct return preserves disposer identity return dispose } @@ -939,7 +942,7 @@ export class ToolRegistry extends Service { } catch (error: unknown) { execution = { ...base, arguments: undefined } const result = this.materializeFinalResult(toolErrorResult(callId, error)) - await this.notifyResult(execution, result) + this.notifyResult(execution, result) return result } let result: ToolExecutionResult @@ -950,7 +953,7 @@ export class ToolRegistry extends Service { // waterfall machinery becomes an isError result, never a turn failure. result = this.materializeFinalResult(toolErrorResult(execution.callId, error)) } - await this.notifyResult(execution, result) + this.notifyResult(execution, result) return result } @@ -1018,20 +1021,20 @@ export class ToolRegistry extends Service { } /** Notify final-result observers without giving them a mutation/error channel into the outcome. */ - private async notifyResult(exec: ToolExecution, result: ToolExecutionResult): Promise { + private notifyResult(exec: ToolExecution, result: ToolExecutionResult): void { // The pipeline is over: freeze the remaining mutable signal slot so every // observer sees the SAME WeakMap-keyable execution without a mutation race. Object.freeze(exec) - const callbacks = this.ctx.events.dispatch('parallel', [ + const callbacks = this.ctx.events.dispatch('emit', [ scopeTarget(this, exec.agent), 'tools/result', exec, result, ]) - await Promise.all(callbacks.map(async (callback) => { + for (const callback of callbacks) { try { - await callback(exec, result) + callback(exec, result) } catch (error: unknown) { this.ctx.logger.warn(`tool "${exec.name}" (${exec.callId}): tools/result observer failed: ${errorMessage(error)}`) } - })) + } } /** diff --git a/packages/core/tools/tests/code-mode.spec.ts b/packages/core/tools/tests/code-mode.spec.ts index 83dedbdb00..3333b3e1f9 100644 --- a/packages/core/tools/tests/code-mode.spec.ts +++ b/packages/core/tools/tests/code-mode.spec.ts @@ -171,7 +171,7 @@ describe('mode-aware wire contribution', () => { expect(result.isError).toBe(false) expect(result.content).toEqual([{ type: 'text', text: 'echo' }]) - await lift() + lift() const unrestricted = await systemPrompt.assemble({ scope: agent }) expect(unrestricted.tools.map(tool => tool.name)).toEqual(mode === 'code' ? [RUN_CODE_NAME] diff --git a/packages/core/tools/tests/scoped.spec.ts b/packages/core/tools/tests/scoped.spec.ts index 991d420054..e2445fc555 100644 --- a/packages/core/tools/tests/scoped.spec.ts +++ b/packages/core/tools/tests/scoped.spec.ts @@ -1,5 +1,6 @@ -import { describe, expect, it, vi } from 'vitest' +import { describe, expect, expectTypeOf, it, vi } from 'vitest' import { Context } from 'cordis' +import type { Events } from 'cordis' import { createScope } from '@deepseek-ai/dsh-scope' import type { Scope } from '@deepseek-ai/dsh-scope' import SystemPrompt from '@deepseek-ai/dsh-system-prompt' @@ -50,6 +51,14 @@ async function run(ctx: Context, name: string, agent?: Agent): Promise { } describe('scoped tool registration', () => { + it('keeps final-result observers synchronous', () => { + type ToolResultListener = Events['tools/result'] + type AsyncToolResultListener = () => Promise + + expectTypeOf().not.toExtend() + expectTypeOf>().toEqualTypeOf() + }) + it('files a scoped tool in its layer: visible/executable for that scope only', async () => { const ctx = await mount() const { scope, key } = await mintAgentScope(ctx, 'a') @@ -177,7 +186,7 @@ describe('restrict()', () => { const liftAllow = scope.ctx.tools.restrict({ allow: ['a', 'b'] }) scope.ctx.tools.restrict({ deny: ['b'] }) expect(ctx.tools.schemas(key).map(t => t.name)).toEqual(['a']) - await liftAllow() + liftAllow() // The deny remains after the allow-list is lifted. expect(ctx.tools.schemas(key).map(t => t.name).sort()).toEqual(['a', 'c']) }) @@ -257,7 +266,7 @@ describe('scoped execution dispatch', () => { expect(await run(ctx, 't', other)).toBe('ran:t') expect(bodyCalls).toBe(1) - await liftFirst() + liftFirst() expect(await run(ctx, 't', key)).toBe('Error: terminal policy') await scope.dispose() expect(await run(ctx, 't', key)).toBe('ran:t') @@ -607,7 +616,7 @@ describe('scoped execution dispatch', () => { const result = await ctx.tools.execute({ callId: CallId('final'), name: 't', arguments: {}, agent: key }) expect(result).toMatchObject({ isError: true, content: [{ type: 'text', text: 'outer failure' }] }) expect(seen).toEqual([true, true]) - expect(dispatchModes).toEqual(['parallel']) + expect(dispatchModes).toEqual(['emit']) expect(warn).toHaveBeenCalledOnce() expect(String(warn.mock.calls[0]?.[0])).toContain('') }) diff --git a/packages/core/tools/tests/tools.spec.ts b/packages/core/tools/tests/tools.spec.ts index 4c52ba7910..e74766c699 100644 --- a/packages/core/tools/tests/tools.spec.ts +++ b/packages/core/tools/tests/tools.spec.ts @@ -677,7 +677,7 @@ describe('ToolRegistry', () => { const dispose = ctx.tools.register({ ...echoTool, name: 'disposable' }) expect(ctx.tools.schemas().map(t => t.name)).toEqual(['echo', 'disposable']) - await dispose() + dispose() expect(ctx.tools.schemas().map(t => t.name)).toEqual(['echo']) }) @@ -698,7 +698,7 @@ describe('ToolRegistry', () => { // exposed exactly once (the duplicate-name check is not wedged). const dispose = ctx.tools.register(echoTool) expect(ctx.tools.schemas().map(t => t.name)).toEqual(['echo']) - await dispose() + dispose() expect(ctx.tools.get('echo')).toBeUndefined() }) diff --git a/packages/skill/skill/README.md b/packages/skill/skill/README.md index ebfac17e2e..1f0c8d552b 100644 --- a/packages/skill/skill/README.md +++ b/packages/skill/skill/README.md @@ -8,10 +8,10 @@ This package owns the `ctx.skills` interface. It does not know whether skills co ### Public API -- `ctx.skills.registerProvider(provider): () => Promise | void` Registers a readonly provider by unique `provider.name`. Duplicate provider names throw, and `runtime` is reserved for `ctx.skills.register(...)`. The registry borrows the provider object and invokes its methods directly. The registration is effect-scoped and HMR-safe, and the exact Cordis disposer supports ordered composite teardown. +- `ctx.skills.registerProvider(provider): () => void` Registers a readonly provider by unique `provider.name`. Duplicate provider names throw, and `runtime` is reserved for `ctx.skills.register(...)`. The registry borrows the provider object and invokes its methods directly. The registration is effect-scoped and HMR-safe, and the exact Cordis disposer supports ordered composite teardown. - `ctx.skills.list({ cwd?, signal? })` Borrows the readonly lookup options, then returns model-invocable summaries for the current workspace, merged across providers and sorted by name. - `ctx.skills.get(name, { cwd?, signal? })` Uses the same readonly options and winning candidate for discovery and loading, rechecks cancellation after discovery or a cache hit, races provider loading against the signal, validates the loaded definition, then returns it, including disabled-for-model skills. -- `ctx.skills.register(skill): () => Promise | void` Registers a readonly runtime embedded skill, adding `provider: "runtime"` when omitted. Same-name runtime registrations are first-wins: a duplicate logs a warning and gets a no-op disposer. Successful registrations return the exact Cordis disposer for ordered composite teardown. +- `ctx.skills.register(skill): () => void` Registers a readonly runtime embedded skill, adding `provider: "runtime"` when omitted. Same-name runtime registrations are first-wins: a duplicate logs a warning and gets a no-op disposer. Successful registrations return the exact Cordis disposer for ordered composite teardown. ### Config diff --git a/packages/skill/skill/src/index.ts b/packages/skill/skill/src/index.ts index f2ece2379f..5ef3f78465 100644 --- a/packages/skill/skill/src/index.ts +++ b/packages/skill/skill/src/index.ts @@ -187,7 +187,7 @@ export class SkillService extends Service { * @returns the exact Cordis effect disposer that unregisters this provider; * composite effects may yield it directly to preserve teardown ordering. */ - registerProvider(provider: SkillProvider): () => Promise | void { + registerProvider(provider: SkillProvider): () => void { const name = provider.name if (name === RUNTIME_PROVIDER) { throw new Error(`"${RUNTIME_PROVIDER}" is reserved for runtime skill registrations`) @@ -210,6 +210,7 @@ export class SkillService extends Service { } ctx.emit('skill/provider-added', provider) }, 'skills.registerProvider()') + // eslint-disable-next-line @typescript-eslint/no-misused-promises -- synchronous cleanup; direct return preserves disposer identity return dispose } @@ -225,7 +226,7 @@ export class SkillService extends Service { * contribution and invalidates caches; composite effects may yield it * directly to preserve teardown ordering. */ - register(skill: SkillRegistration): () => Promise | void { + register(skill: SkillRegistration): () => void { validateRuntimeSkill(skill) const existing = this.runtime.get(skill.name) if (existing !== undefined) { @@ -245,6 +246,7 @@ export class SkillService extends Service { invalidateCache() } }, 'skills.register()') + // eslint-disable-next-line @typescript-eslint/no-misused-promises -- synchronous cleanup; direct return preserves disposer identity return dispose } diff --git a/packages/skill/skill/tests/skill.spec.ts b/packages/skill/skill/tests/skill.spec.ts index 90bf1ea983..8195d418cb 100644 --- a/packages/skill/skill/tests/skill.spec.ts +++ b/packages/skill/skill/tests/skill.spec.ts @@ -103,7 +103,7 @@ describe('SkillService registry', () => { }, })).toThrow('reserved') - await disposeMemory() + disposeMemory() expect((await ctx.skills.list()).map(skill => skill.name)).toEqual(['same-rank-skill', 'shadowed']) }) @@ -538,7 +538,7 @@ describe('SkillService registry', () => { path: 'memory://runtime-skill', metadata: { owner: 'tests' }, }) - await disposeRuntime() + disposeRuntime() await ctx.skills.list({ cwd: '/tmp/first-cache-key' }) await ctx.skills.list({ cwd: '/tmp/second-cache-key' }) @@ -615,7 +615,7 @@ describe('SkillService registry', () => { const pending = ctx.skills.list() await started - await dispose() + dispose() release?.() expect(await pending).toEqual([]) @@ -673,9 +673,9 @@ describe('SkillService registry', () => { const disposeFirst = ctx.skills.register({ name: 'same-skill', description: 'First', source: 'runtime', content: 'first' }) const disposeSecond = ctx.skills.register({ name: 'same-skill', description: 'Second', source: 'runtime', content: 'second' }) - await disposeSecond() + disposeSecond() expect((await ctx.skills.get('same-skill'))?.description).toBe('First') - await disposeFirst() + disposeFirst() expect(await ctx.skills.get('same-skill')).toBeUndefined() }) }) diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts index f81d82ef62..60a2291788 100644 --- a/packages/subagent/subagent-inprocess/src/structured.ts +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -149,7 +149,7 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut // The capture COMMIT observes the immutable, authoritative result after the // complete pipeline and outer error normalization. This notification cannot // transform the outcome, so there is no wrapper outside the commit verdict. - childCtx.on('tools/result', function (this: unknown, exec, result): void { + childCtx.on('tools/result', function (this: unknown, exec, result) { if (exec.name === STRUCTURED_OUTPUT_TOOL) { const entry = staged.get(exec) if (entry === undefined) return diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index f989d727c8..636b2b6161 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -742,7 +742,7 @@ describe('in-process structured output', () => { const run = await ctx.subagents.start('spawn', structuredRequest(parent)) // A backend hot-reload mid-run must not unregister the capture tool out // from under the live child: the registration rides the CHILD's fiber. - await disposeProvider() + disposeProvider() const result = await run.result expect(result.structured).toEqual({ answer: 4 }) const child = ctx.agents.get(run.id)! diff --git a/packages/subagent/subagent/src/index.ts b/packages/subagent/subagent/src/index.ts index 6332a0a458..4635de9697 100644 --- a/packages/subagent/subagent/src/index.ts +++ b/packages/subagent/subagent/src/index.ts @@ -134,8 +134,9 @@ export class SubagentService extends Service { * @param provider - the trusted provider implementation. * @returns the exact Cordis effect disposer. */ - registerProvider(provider: SubagentProvider): () => Promise | void { + registerProvider(provider: SubagentProvider): () => void { const name = provider.name + // eslint-disable-next-line @typescript-eslint/no-misused-promises -- synchronous cleanup; direct return preserves disposer identity return this.ctx.effect(function* (this: SubagentService) { if (this.providers.has(name)) { throw new SubagentError(`a subagent provider named "${name}" is already registered`, 'DUPLICATE_PROVIDER') diff --git a/packages/subagent/subagent/tests/service.spec.ts b/packages/subagent/subagent/tests/service.spec.ts index 23c2caf445..3d10b425ed 100644 --- a/packages/subagent/subagent/tests/service.spec.ts +++ b/packages/subagent/subagent/tests/service.spec.ts @@ -74,7 +74,7 @@ describe('SubagentService', () => { await expect(run.result).resolves.toMatchObject({ stopReason: 'completed' }) expect(provider.startCount).toBe(1) - await dispose() + dispose() expect(added).toEqual(['alpha']) expect(removed).toEqual(['alpha']) expect(subagents.getProvider('alpha')).toBeUndefined() @@ -213,7 +213,7 @@ describe('SubagentService', () => { ctx.on('subagent/provider-removed', name => void heard.push(name)) const dispose = subagents.registerProvider(new StubProvider('contained')) - await dispose() + dispose() await Promise.resolve() expect(heard).toEqual(['contained']) expect(warnings.some(message => message.includes('sync boom'))).toBe(true) diff --git a/packages/subagent/tool-subagent/src/index.ts b/packages/subagent/tool-subagent/src/index.ts index 322a76e825..d07e6726dd 100644 --- a/packages/subagent/tool-subagent/src/index.ts +++ b/packages/subagent/tool-subagent/src/index.ts @@ -212,7 +212,7 @@ export function apply(ctx: Context, config: Config): void { // available — deriving the wording from THAT provider — and unregister it // when the provider goes away, so the description can never outlive or // predate the provider it describes. - let disposeTool: (() => Promise | void) | undefined + let disposeTool: (() => void) | undefined const mount = (provider: SubagentProvider): void => { const wording = providerWording(provider.inheritsParentContext) disposeTool = ctx.tools.register(defineTool({ @@ -283,7 +283,7 @@ export function apply(ctx: Context, config: Config): void { }) ctx.on('subagent/provider-removed', (name) => { if (name !== config.provider || disposeTool === undefined) return - void disposeTool() + disposeTool() disposeTool = undefined }) const present = ctx.subagents.getProvider(config.provider) diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts index c4c8186f38..0db3be2f6b 100644 --- a/scripts/gen-doc-graphs.ts +++ b/scripts/gen-doc-graphs.ts @@ -262,8 +262,8 @@ const DYNAMIC_EVENT_DISPATCHERS: Array<{ event: string; pkg: string; method: str // Session disposal uses direct callback resolution so teardown contains each // synchronous throw and returned-promise rejection independently. { event: 'session/disposed', pkg: 'session', method: 'events.dispatch' }, - // tools/result uses ctx.events.dispatch directly so the registry can await - // every observer while containing each callback independently. + // tools/result uses ctx.events.dispatch directly so the registry can invoke + // every synchronous observer while containing each callback independently. { event: 'tools/result', pkg: 'tools', method: 'events.dispatch' }, // Subagent lifecycle events intentionally bypass ctx.emit and call // ctx.events.dispatch directly so one throwing listener cannot starve later @@ -779,7 +779,7 @@ function renderToolPipeline(): string { ` fsGate["${mermaidCode('fs/write-intent')} or ${mermaidCode('fs/edit-intent')}
tool-fs mutations only"]`, ` owned["Tool-owned session events
${mermaidCode('todo/write')}, ${mermaidCode('fs/observed')}, ${mermaidCode('hook/invoked')}, ${mermaidCode('hook/result')}, ${mermaidCode('tool/code-dispatch')}"]`, ` post["${mermaidCode('tools/post-execute')} waterfall
accept, block, replace, add context"]`, - ` final["${mermaidCode('tools/result')} parallel notification
frozen authoritative outcome"]`, + ` final["${mermaidCode('tools/result')} synchronous notification
frozen authoritative outcome"]`, ' context["Buffered additionalContext
context/message after all tool results"]', ` toolResult["Session event: ${mermaidCode('tool/result')}
single model-facing outcome"]`, ' allResults["All calls in the step settled
and tool/result events recorded"]', @@ -808,7 +808,7 @@ function renderToolPipeline(): string { ' allResults --> context', '```', '', - 'Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate; hook bridges and approval-triggering permission policy enter through the generic pre/post tool waterfalls, while `ctx.approval` resolves an `ask` before the monotonic guards; owner policy that must not be reordered uses registered guards; and around-dispatch concerns like the tool-call timeout policy (`@deepseek-ai/dsh-timeout-policy`) wrap core dispatch on `tools/execute`. The awaited `tools/result` notification observes the immutable final outcome after every transform, lossless-JSON validation, and outer error normalization. That split lets the same hooks observe bash, fs, web, todo, skill, and subagent calls without coupling those tools to one policy service. Code Mode rides the whole pipeline twice over: `run_code` is the reserved registry-owned transport whose body enters the pipeline, and each tool call its program makes re-enters `ctx.tools.execute()` — serialized one at a time, carrying the outer execution\'s opaque token for correlation, and logged as a `tool/code-dispatch` session event, with a deny surfacing to the program as a binding rejection (a sub-call\'s `additionalContext` is deliberately dropped — no safe outlet mid-run preserves call/result adjacency).', + 'Filesystem read-before-edit checks live below `tool-fs` on the `fs/*` event gate; hook bridges and approval-triggering permission policy enter through the generic pre/post tool waterfalls, while `ctx.approval` resolves an `ask` before the monotonic guards; owner policy that must not be reordered uses registered guards; and around-dispatch concerns like the tool-call timeout policy (`@deepseek-ai/dsh-timeout-policy`) wrap core dispatch on `tools/execute`. The synchronous `tools/result` notification observes the immutable final outcome after every transform, lossless-JSON validation, and outer error normalization. That split lets the same hooks observe bash, fs, web, todo, skill, and subagent calls without coupling those tools to one policy service. Code Mode rides the whole pipeline twice over: `run_code` is the reserved registry-owned transport whose body enters the pipeline, and each tool call its program makes re-enters `ctx.tools.execute()` — serialized one at a time, carrying the outer execution\'s opaque token for correlation, and logged as a `tool/code-dispatch` session event, with a deny surfacing to the program as a binding rejection (a sub-call\'s `additionalContext` is deliberately dropped — no safe outlet mid-run preserves call/result adjacency).', '', ...maintenanceFooter(maintenance), ].join('\n') From e04ec0734525e184f2210d1bee126c269973858d Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 13 Jul 2026 13:09:41 +0800 Subject: [PATCH 228/232] refactor(core): remove owner-final assembly machinery --- docs/config-catalog.md | 4 +- docs/cookbook/extension-cookbook.md | 8 +- docs/cordis-catalog/events.md | 8 +- docs/cordis-catalog/services.md | 8 +- docs/core-data-structures/core.md | 4 +- docs/core-data-structures/system-prompt.md | 8 +- docs/core-data-structures/tools.md | 6 - docs/event-producer-consumer.md | 4 +- .../2026-07-12-agent-scope-runtime-design.md | 45 ++++--- .../feature/2026-06-15-code-mode.md | 14 ++- .../feature/2026-07-05-dynamic-workflows.md | 2 +- .../feature/2026-07-06-explicit-tool-order.md | 6 +- docs/tool-catalog.md | 4 +- examples/README.md | 2 +- examples/coding-agent/README.md | 2 +- .../cordis/tool-cordis/src/api-catalog.ts | 8 +- packages/core/agent/README.md | 2 +- packages/core/system-prompt/README.md | 15 ++- packages/core/system-prompt/src/index.ts | 112 ++++------------- .../core/system-prompt/tests/scoped.spec.ts | 42 ------- .../system-prompt/tests/system-prompt.spec.ts | 61 --------- packages/core/tools/README.md | 12 +- packages/core/tools/src/code-mode.ts | 1 - packages/core/tools/src/index.ts | 53 +++----- packages/core/tools/src/schema.ts | 3 - packages/core/tools/tests/code-mode.spec.ts | 20 ++- packages/core/tools/tests/scoped.spec.ts | 29 ----- .../subagent/subagent-inprocess/README.md | 2 +- .../subagent-inprocess/src/structured.ts | 15 +-- .../tests/structured.spec.ts | 117 +----------------- scripts/gen-tool-catalog.ts | 2 +- 31 files changed, 143 insertions(+), 476 deletions(-) diff --git a/docs/config-catalog.md b/docs/config-catalog.md index 63d1303fc6..1e8bd9e508 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -777,7 +777,7 @@ export interface Config { } ``` -Source: [`packages/core/system-prompt/src/index.ts:257`](../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:225`](../packages/core/system-prompt/src/index.ts) ## `@deepseek-ai/dsh-tool-cordis` @@ -958,7 +958,7 @@ export interface Config { export type ToolPresentationMode = 'native' | 'code' | 'both' ``` -Source: [`packages/core/tools/src/index.ts:407`](../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:401`](../packages/core/tools/src/index.ts) ## `@deepseek-ai/dsh-user-approval` diff --git a/docs/cookbook/extension-cookbook.md b/docs/cookbook/extension-cookbook.md index ac62cdd75b..e2677e463a 100644 --- a/docs/cookbook/extension-cookbook.md +++ b/docs/cookbook/extension-cookbook.md @@ -89,19 +89,21 @@ Three complete examples load their plugin trees from `cordis.yml`: [`examples/ec Every product feature maps to a listener on a documented extension seam — the microkernel claim made checkable ([microkernel RFC](../rfc/implemented/architecture/2026-06-11-microkernel-event-taxonomy.md)). No row modifies the loop. +`system-prompt/assemble` is an expert cooperative whole-assembly transform: its returned assembly is authoritative, so listener authors own preserving active Code Mode and structured-output protocol contributions. Prefer `ctx.tools.restrict()` for tool filtering that must stay aligned across presentation, lookup, and execution. + | Product feature | Plugin mechanism | |---|---| | Hook system (user + project level) | listeners on `agent/session-start`, `agent/prompt-submit`, `agent/request`, `agent/step-result`, `tools/pre-execute`, `tools/post-execute`, `agent/turn-continuation` — each interception waterfall returns a typed Decision; the `dsh-hooks-claude` / `dsh-hooks-codex` bridges map hook config files onto these seams | | `/goal` | force-continue via `agent/turn-continuation` + `steer()` reminders | | `/loop` | on the `turn/end` session event, `send()` the next iteration; or force-continue | -| Dynamic workflow | `ctx.workflows` + the worker-thread engine + the `workflow` tool; structured in-process children enforce output with scoped owner-final prompt/tool contributions, a monotonic tool guard, final `tools/result` commit (including enclosing `run_code`), and terminal `agent/turn-stop` | +| Dynamic workflow | `ctx.workflows` + the worker-thread engine + the `workflow` tool; structured in-process children enforce output with scoped prompt/tool registrations, a monotonic tool guard, final `tools/result` commit (including enclosing `run_code`), and terminal `agent/turn-stop` | | Queued + steering messages | core `Agent.send()` / `Agent.steer()` | | Context compaction (auto + manual) | the `ctx.compact` seam + a backend (`dsh-compact-basic`) on the serial `agent/pre-step` seam; auto = token-pressure check before each step; a manual trigger invokes the same `ctx.compact` routine ([compaction RFC](../rfc/implemented/feature/2026-06-18-compaction-capability-seam.md) — the model-facing `/compact` consumer tool is deferred) | -| System prompt configurability | `ctx.systemPrompt.section()` with ordering; a protocol owner sets `ownerFinal: true` on the section or tool only when canonical presence is a correctness invariant | +| System prompt configurability | `ctx.systemPrompt.section()` with ordering and scope-local shadowing | | AGENTS.md (root) | a section provider reading the file | | AGENTS.md (subdir, on-touch) + file-change notices | `agent.inject()` from a watcher / tool-result listener | | Built-in tools | `ctx.tools.register()`; schemas flow into the assembly automatically — the `dsh-tool-*` families (bash, fs, web, subagent, todo) are the shipped examples | -| ToolSearch / progressive disclosure | filter ordinary capabilities at `system-prompt/assemble` (the loop logs the result as the request header); owner-final transport and correctness contributions retain their canonical presence or absence | +| ToolSearch / progressive disclosure | replace a scoped `ctx.tools.restrict()` registration as the visible set changes; the registry keeps presentation, lookup, and execution aligned | | Tool deadline / retry / metrics | wrap core dispatch with `tools/execute`; a wrapper may replace `exec.signal`, delegate, and inspect the normalized result in one lexical lifetime | | Final tool-result metrics / audit / capture | observe immutable authoritative outcomes with `tools/result`; use `tools/post-execute` instead only when the plugin must transform the result or attach context | | Monotonic terminal turn policy | return `{ action: 'stop' }` from serial `agent/turn-stop`, after continuation and steering have already been folded | diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md index 67d339df5a..acbd39b8fa 100644 --- a/docs/cordis-catalog/events.md +++ b/docs/cordis-catalog/events.md @@ -355,11 +355,15 @@ Source: [`packages/subagent/subagent/src/index.ts:82`](../../packages/subagent/s Waterfall around prompt assembly — mutate or extend the PromptAssembly (sections + tools + variables) before it is rendered. Bound to the SystemPrompt service; call `next()` to delegate. +Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed by `context.scope` — a listener registered through `agent.ctx` fires only for that agent's assemblies; a plain plugin listener fires for every assembly (scope-less ones included, dispatched subject-less). + +The returned assembly is authoritative. This is an expert composition seam: a listener that removes or replaces another plugin's protocol contribution owns preserving that protocol's invariants. + ```ts cordis-catalog 'system-prompt/assemble'(this: Scoped, assembly: PromptAssembly, context: AssembleContext, next: () => Promise): Promise ``` -Source: [`packages/core/system-prompt/src/index.ts:45`](../../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:49`](../../packages/core/system-prompt/src/index.ts) ### `system-prompt/change` — emit @@ -369,7 +373,7 @@ A section, tool provider, or variable provider was registered or unregistered (t 'system-prompt/change'(): void ``` -Source: [`packages/core/system-prompt/src/index.ts:55`](../../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:59`](../../packages/core/system-prompt/src/index.ts) ## `tools/*` diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index e3fe559d35..e067708712 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -248,7 +248,7 @@ Source: [`packages/subagent/subagent/src/index.ts:123`](../../packages/subagent/ ## `ctx.systemPrompt` — `SystemPrompt` -Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, named prompt variables, and owner-final contributions; the agent loop calls `assemble(context)` once per step. Registers the harness-owned `harness:identity` and `deployment:persona` sections itself (see Config.persona). +Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, and named prompt variables; the agent loop calls `assemble(context)` once per step. Registers the harness-owned `harness:identity` and `deployment:persona` sections itself (see Config.persona). ```ts cordis-catalog section(section: PromptSection): () => void @@ -257,13 +257,13 @@ variable(name: string, provider: (context: AssembleContext) => string | undefine async assemble(context: AssembleContext = {}): Promise ``` -Source: [`packages/core/system-prompt/src/index.ts:372`](../../packages/core/system-prompt/src/index.ts) +Source: [`packages/core/system-prompt/src/index.ts:340`](../../packages/core/system-prompt/src/index.ts) ## `ctx.tools` — `ToolRegistry` Tool registry (`ctx.tools`): tool plugins register definitions; the agent loop executes calls through the `tools/pre-execute` → guards → `tools/execute` → `tools/post-execute` → `tools/result` pipeline. The registry contributes its schemas into the system-prompt assembly — WHICH schemas is governed by its `mode` config (see Config.mode); under a non-native mode it also owns the reserved `run_code` presentation transport and the `tools:sdk` prompt section. -Two registration layers (`@deepseek-ai/dsh-scope`): a registration through a plain plugin context is GLOBAL (visible to every agent); one through a scoped context (`agent.ctx`) is filed in that scope's layer — visible to that agent alone, disposed with the scope, and SHADOWING a global tool of the same name for that agent (most-specific-wins; within one layer a duplicate name still throws). restrict masks the global layer per scope. One private visibility resolver feeds prompt assembly, get, and execute — and, under a non-native mode, the SDK section and `run_code`'s bindings — so what the model is shown, what a presenter renders, what a program can call, and what dispatches can never disagree. +Two registration layers (`@deepseek-ai/dsh-scope`): a registration through a plain plugin context is GLOBAL (visible to every agent); one through a scoped context (`agent.ctx`) is filed in that scope's layer — visible to that agent alone, disposed with the scope, and SHADOWING a global tool of the same name for that agent (most-specific-wins; within one layer a duplicate name still throws). restrict masks the global layer per scope. One private visibility resolver feeds the registry's prompt contribution, get, and execute — and, under a non-native mode, the SDK section and `run_code`'s bindings — so those registry-owned presentation and dispatch paths agree. An expert `system-prompt/assemble` listener may deliberately replace the final wire composition and owns any resulting divergence. ```ts cordis-catalog register(definition: ToolDefinition): () => void @@ -276,7 +276,7 @@ async execute(exec: ToolExecutionInput): Promise Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecutionInput](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:500`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:493`](../../packages/core/tools/src/index.ts) ## `ctx.userInteraction` — `UserInteractionService` diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index ecf075b20f..e25e066a08 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -19,7 +19,7 @@ Everything else is documented on a **sub-page**, not here. The rule that draws t | [scope.md](scope.md) | scoped registration identity, dispatch carriers, and the owned `Scope` context | | [session.md](session.md) | the full `SessionEventMap` variant catalog, `TurnTrigger`/`TurnEndReason`, `deriveMessages()`, the turn-enclosure invariant | | [persistence.md](persistence.md) | the durability seam: `SessionPersistence`, JSONL + SQLite backends, `session/flush`, crash recovery, `SessionHeader` | -| [system-prompt.md](system-prompt.md) | per-assembly context, tool-provider results, and canonical contribution protection | +| [system-prompt.md](system-prompt.md) | per-assembly context, tool-provider results, prompt sections, and cooperative assembly | | [tools.md](tools.md) | `ToolDefinition` full fields, the schema DSL, `ToolExecution`/`ToolResult`, tool-presentation UI types, and the guarded execution pipeline | | [user-interaction.md](user-interaction.md) | the UI-backed human question/answer seam: `AskUserQuestionRequest`, answer/options vocabulary, provider API, error taxonomy | | [approval.md](approval.md) | the one-shot user-approval seam: `ApprovalRequest`, `ApprovalOutcome`, per-session policy, audit and answerer contracts | @@ -201,7 +201,7 @@ The model-facing `ToolSchema` is the wire shape; the registered `ToolDefinition` ### The request envelope: `LlmCallConfig` and the logged header -Requests are built by the loop, not shaped per call: the non-history half of a request — the `EpochHeader`: this call configuration plus the rendered system prompt, the tool schemas in the assembly's canonical order (dsh-system-prompt's `toolOrder` config, lexicographic when unset), and the session prefix — is logged session state (`request/header` snapshot and delta events, [session.md](session.md#the-request-header-events-requestheader-and-requestheader-delta)), so every conversation request is a pure function of the session log ([reconstructability RFC](../rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)). The `agent/request` waterfall receives a frozen `LlmCallConfig` seed and a listener returns a replacement to switch model or sampling; the `agent/session-prefix` waterfall — fired once per loop instance — composes the request-only messages fronting the derived history (recorded as the header's `messagePrefix`) — the loop logs whatever the request actually uses. Loop-built requests arrive at `llm/stream` deep-frozen; mutation throws. +Requests are built by the loop, not shaped per call: the non-history half of a request — the `EpochHeader`: this call configuration plus the rendered system prompt, the tool schemas in the authoritative returned assembly order (initially canonicalized by dsh-system-prompt's `toolOrder` config, or lexicographically when unset), and the session prefix — is logged session state (`request/header` snapshot and delta events, [session.md](session.md#the-request-header-events-requestheader-and-requestheader-delta)), so every conversation request is a pure function of the session log ([reconstructability RFC](../rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)). The `agent/request` waterfall receives a frozen `LlmCallConfig` seed and a listener returns a replacement to switch model or sampling; the `agent/session-prefix` waterfall — fired once per loop instance — composes the request-only messages fronting the derived history (recorded as the header's `messagePrefix`) — the loop logs whatever the request actually uses. Loop-built requests arrive at `llm/stream` deep-frozen; mutation throws. On the wire, a loop-built request reads in this order: the `system` slot (the rendered prompt assembly) → `messagePrefix` (the frozen session prefix) → the derived history — the boundary snapshot, whose tail is the newest `user/message` on a turn's first step and the previous step's tool results on later steps. The prefix never enters the derived history; its durable record is the header events, and the dev invariant recomputes exactly this equation against every loop-built request. diff --git a/docs/core-data-structures/system-prompt.md b/docs/core-data-structures/system-prompt.md index bfd34b3626..4b6f1e6625 100644 --- a/docs/core-data-structures/system-prompt.md +++ b/docs/core-data-structures/system-prompt.md @@ -16,25 +16,23 @@ interface AssembleContext { ## Tool-provider result -`ToolProviderResult.schemas` is the model-visible set for the current assembly. `knownNames` is the provider's pre-restriction name universe used to distinguish a configured-name typo from a known tool that is deliberately hidden in this scope. `ownerFinalNames` identifies tool contributions whose canonical presence or absence survives the assembly waterfall. +`ToolProviderResult.schemas` is the model-visible set for the current assembly. `knownNames` is the provider's pre-restriction name universe used to distinguish a configured-name typo from a known tool that is deliberately hidden in this scope. ```ts type-equiv interface ToolProviderResult { readonly schemas: readonly ToolSchema[] readonly knownNames?: readonly string[] - readonly ownerFinalNames?: readonly string[] } ``` -## Prompt sections and owner finality +## Prompt sections -`PromptSection` is a readonly same-process registration contract. `ownerFinal` is reserved for protocol-owned instructions whose canonical presence and definition must survive the complete assembly waterfall; ordinary sections remain transformable. Tool definitions declare the equivalent fact on their own contribution, and the tool provider reports the resolved names through `ownerFinalNames` above. +`PromptSection` is a readonly same-process registration contract. Its text may be static or resolved from the current assembly context. ```ts type-equiv interface PromptSection { readonly name: string readonly order: number readonly text: string | ((context: AssembleContext) => string) - readonly ownerFinal?: boolean } ``` diff --git a/docs/core-data-structures/tools.md b/docs/core-data-structures/tools.md index 46c32a192f..d7e0464f01 100644 --- a/docs/core-data-structures/tools.md +++ b/docs/core-data-structures/tools.md @@ -19,12 +19,6 @@ interface ToolDefinition extends ToolSchema { * cooperative implementation that can reach quiescence when the signal aborts. */ timeoutMs?: number - /** - * Whether this tool name's canonical wire presence or absence survives the - * complete system-prompt assembly waterfall. Reserved for protocol tools - * whose owner must retain the final definition. - */ - readonly ownerFinal?: boolean /** * Optional: how to present the PENDING state of one call in a UI, derived from * the call's `args` (parsed arguments, `unknown` — the tool validates/narrows diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md index 654ccd27c0..a8810a01fe 100644 --- a/docs/event-producer-consumer.md +++ b/docs/event-producer-consumer.md @@ -35,8 +35,8 @@ This matrix shows which packages dispatch each harness-owned event and which pac | `subagent/provider-added` | `emit` | [`packages/subagent/subagent/src/index.ts:66`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`emit`) | [`tool-subagent`](../packages/subagent/tool-subagent) | | `subagent/provider-removed` | `emit` | [`packages/subagent/subagent/src/index.ts:72`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`tool-subagent`](../packages/subagent/tool-subagent) | | `subagent/start` | `emit` | [`packages/subagent/subagent/src/index.ts:82`](../packages/subagent/subagent/src/index.ts) | [`subagent`](../packages/subagent/subagent) (`events.dispatch`) | [`hooks-claude`](../packages/hooks/hooks-claude) | -| `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:45`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | -| `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:55`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | +| `system-prompt/assemble` | `waterfall` | [`packages/core/system-prompt/src/index.ts:49`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`waterfall`) | - | +| `system-prompt/change` | `emit` | [`packages/core/system-prompt/src/index.ts:59`](../packages/core/system-prompt/src/index.ts) | [`system-prompt`](../packages/core/system-prompt) (`emit`) | - | | `tools/change` | `emit` | [`packages/core/tools/src/index.ts:173`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - | | `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:128`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`timeout-policy`](../packages/timeout/timeout-policy) | | `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:148`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | diff --git a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md index 2aeea1e48f..063cc4738c 100644 --- a/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md +++ b/docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md @@ -12,7 +12,7 @@ The implementation needs enough state to preserve real ownership and settlement ## Decision -The runtime uses one mechanism per independent fact. Scope routing has an opaque carrier; each live registry object has one entry record; each create or resume operation has one transaction; typed same-process calls borrow readonly values; real data boundaries materialize once; and worker/process code retains separate terminal and quiescence state only where different owners can genuinely race. +The runtime uses one mechanism per independent fact. Scope routing has an opaque carrier; each live registry object has one entry record; each create or resume operation has one transaction; typed same-process calls borrow readonly values; real data boundaries materialize once; the cooperative prompt-assembly result is authoritative; and worker/process code retains separate terminal and quiescence state only where different owners can genuinely race. The design can be skimmed as seven choices: @@ -23,7 +23,7 @@ The design can be skimmed as seven choices: | Coordinate create/resume | One `AgentCreationTransaction` | | Protect durable, queued, model, or wire data | Materialize once at that boundary | | Pass typed values inside one process | Readonly borrowed contract | -| Preserve an owner's final prompt/tool policy | Contribution-owned finality and one final observer point | +| Compose the model-visible prompt and tool surface | One shared tool view plus the authoritative assembly-waterfall result | | Coordinate subagent, worker, and process shutdown | One cancellation signal plus the independent terminal/quiescence facts of that boundary | The rest of this RFC expands those choices in dependency order. It first explains the Cordis mechanics, then scope routing, creation and session commit, tools and prompts, subagents and workflows, and finally the checks that make the reasoning executable. @@ -198,13 +198,13 @@ Tests that fabricate hostile getters, replace typed callbacks after handoff, or Callback containment is separate from data ownership. Listeners are arbitrary extension code and can throw even when their arguments are trusted; publication and post-commit paths still contain failures according to their event contract. -## Tools and prompts: one view, one execution identity, explicit finality +## Tools and prompts: one view, authoritative assembly, committed outcomes -Tool presentation and execution share one private resolver, while prompt/tool owners declare the few contributions that cooperative middleware may not alter finally. No second registry mirrors ownership. +Tool presentation and execution share one private resolver. Prompt assembly remains trusted cooperative composition: registries supply the ordered input, and the assembly waterfall's returned value is exactly what the loop logs and sends. Execution uses separate one-way boundaries only where policy or outcome settlement must be monotonic. ### One resolver defines the tool view -The private resolver applies the current presentation mode, live global restrictions, exact local overlay, and local shadowing. Schemas, lookup, execution, Code Mode SDK generation, restriction validation, and owner-final name derivation all use that resolver or its pre-restriction global-name view. +The private resolver applies the current presentation mode, live global restrictions, exact local overlay, and local shadowing. Schemas, lookup, execution, Code Mode SDK generation, and restriction validation all use that resolver or its pre-restriction global-name view. The [subagent composition-controls RFC](../feature/2026-07-12-subagent-persona-tool-filter-and-depth.md#tool-filtering-is-one-live-global-view-rule) owns the user-visible allow/deny semantics. The implementation requirement is agreement: a filtered-away global cannot remain executable through a different lookup path, and a locally shadowed definition is the same definition presented and executed. @@ -220,21 +220,17 @@ Arguments are materialized once where model/tool JSON enters the pipeline. Pre-, After the last post-execute listener, the registry materializes and freezes the accepted final result once. Every synchronous `tools/result` observer receives that exact committed object, and observer failures are contained individually. An outer pipeline failure is normalized into a committed error result, so observers can discard staged work against the same authoritative boundary. -### Contribution-owned finality protects only named invariants +### The assembly waterfall owns the final model-visible composition -Most prompt assembly remains a cooperative waterfall: listeners may reorder, replace, or remove ordinary sections and schemas. A contribution sets `ownerFinal: true` only when its owner must retain final control over that named entry. +SystemPrompt first resolves the global-plus-agent sections, variables, and tool providers into a deterministic registry contribution. The scope-filtered `system-prompt/assemble` waterfall may then reorder, replace, add, or remove any section, variable, or schema. Its returned assembly is authoritative; there is no later restoration pass and no finality metadata on ordinary prompt sections, tool definitions, or provider results. -Prompt sections carry owner-finality directly. Tool definitions carry it through the tool provider's `ownerFinalNames`, including canonical absence when a presentation mode intentionally omits a tool. `tools:sdk`, `run_code`, and structured-output instruction/schema contributions use this flag. +This is a trusted same-process extension seam, not an authority boundary. A listener that changes Code Mode's `run_code` schema or `tools:sdk` instructions, or a structured child's capture schema or instruction, owns preserving a coherent protocol in the assembly it returns. ToolRegistry still reserves `run_code` against ordinary tool registration and restriction because those are registry invariants, but assembly middleware remains free to transform the final model-visible surface. -An owner-final name is reserved across the global and scoped layers: a scoped shadow cannot be added beneath a global owner-final contribution, and a global contribution cannot become owner-final while any scoped shadow already exists. This makes the registered owner definition unambiguous before assembly begins. - -Assembly takes one private canonical snapshot before the waterfall. After listeners finish, it restores only owner-final names to their canonical presence, absence, definition, and relative anchor among surviving entries. Unrelated listener additions and reordering remain untouched. - -Attaching finality to the owning contribution has two benefits. Registration and cleanup cannot drift from a separate protection registry, and the reader can see why a particular prompt/tool entry is special at its definition. +Scope solves the real isolation problem directly. Structured-output contributions register in the child's exact scope, while Code Mode derives its transport and SDK from the same resolved tool view. A second named-protection system would need another ownership and collision rule across arbitrary schema providers—including providers that intentionally contribute duplicate names—without creating a new trust boundary. ### Structured output commits only authoritative outcomes -Structured output uses the final prompt/tool boundaries as a two-phase commit. The child-scoped `structured_output` tool and its instruction are owner-final; the tool body validates a candidate and stages it by the current `ToolExecution`, but successful capture is decided only by immutable `tools/result` observations. +Structured output combines child-scoped composition with a two-phase execution commit. The child registers its `structured_output` tool and instruction before publication; a trusted assembly listener may transform those ordinary contributions and is responsible for preserving the protocol if the child is expected to complete. The tool body validates a candidate and stages it by the current `ToolExecution`, but successful capture is decided only by immutable `tools/result` observations. For a native call, the observer deletes the stage and commits its value only when that exact execution's final result succeeds. A post-execute block or outer pipeline failure therefore cannot leave a captured value behind. @@ -242,20 +238,19 @@ For a Code Mode SDK call, the inner successful result records `{ parentToken, va Once a value is pending or committed, a scoped monotonic guard denies later tool calls. After commit, the ordinary serial `agent/turn-stop` listener returns a stop decision after continuation and steering have already folded. A schema-validation failure remains an ordinary `INVALID_ARGS` tool error and leaves the child able to retry within the same turn. -Pure Code Mode omits `structured_output` from native wire schemas and exposes it through the generated SDK. Contribution-owned finality preserves that canonical absence, preventing an assembly listener from fabricating a second native route while keeping the instruction and SDK declaration intact. +Pure Code Mode's registry contribution omits `structured_output` from native wire schemas and exposes it through the generated SDK. The assembly waterfall may deliberately change that presentation; execution still validates against the child-scoped definition, and the listener owns the consistency of any alternate model-visible route it creates. -### Four final boundaries have four narrow powers +### Three execution boundaries are deliberately one-way -Owner-final behavior is not a general priority system. Four domain owners need four different one-way powers after cooperative extension points: +Prompt assembly is intentionally cooperative, but three execution facts need one-way settlement after their extensible stages: | Boundary | Final power | Why ordinary listener order is insufficient | |---|---|---| -| Prompt assembly | Restore named canonical contributions | A later listener can remove or replace an invariant schema or instruction | | Tool pre-policy | Deny monotonically | A later listener must not re-allow an already denied call | | Tool result | Observe the immutable committed outcome | Structured output must commit only the result that actually escaped the pipeline | | Turn continuation | Stop after ordinary continuation folding | A committed terminal output must end the turn | -`ToolGuard` remains the monotonic policy registry. Final tool observation is the contained `tools/result` point described above. Terminal structured output listens on the ordinary serial `agent/turn-stop` fold after normal continuation and steering decisions; no public `strictSerial()` dispatcher is needed for the typed listener contract. +`ToolGuard` is the monotonic policy registry. Committed tool observation is the contained `tools/result` point described above. Terminal structured output listens on the ordinary serial `agent/turn-stop` fold after normal continuation and steering decisions; no public `strictSerial()` dispatcher is needed for the typed listener contract. ### Skill and approval services trust typed callers @@ -335,7 +330,7 @@ The plugin does not police trusted setup by scanning registries or reject prompt The event catalog, service catalog, producer/consumer matrix, configuration catalog, module graph, tool catalog, and type-equivalence blocks are generated or freshness-gated from source. `verify-scoped-dispatch` keeps the declared scoped-event set aligned with runtime invariant coverage. -Behavioral tests pin scoped routing and disposal, final-entry collision cleanup, publication rollback, ordered quiescence, durable pre/post-commit behavior, live tool filtering across presentation and execution, owner-final Code Mode and structured output, async subagent startup and signal cancellation, worker terminal arbitration, ACP settlement, and process teardown. +Behavioral tests pin scoped routing and disposal, final-entry collision cleanup, publication rollback, ordered quiescence, durable pre/post-commit behavior, live tool filtering across presentation and execution, cooperative prompt assembly, structured-output commit in native and Code Mode, async subagent startup and signal cancellation, worker terminal arbitration, ACP settlement, and process teardown. ## Alternatives considered @@ -361,9 +356,9 @@ Parallel sentinels can all mirror whether one operation is live. One transaction This splits provider acceptance from readiness and forces every consumer to register a partial run, attach result observation, await readiness, and clean up readiness failure. An async start promise makes provider-to-caller ownership transfer the readiness boundary itself. -### Keep a separate prompt-protection registry +### Restore selected prompt or tool contributions after assembly -A protection registration mirrors the names and lifetime already owned by prompt sections and tool definitions. `ownerFinal` keeps the exceptional policy on the contribution and lets assembly derive the canonical set directly. +A post-waterfall restoration pass would create a second composition rule after the documented cooperative seam. Correctly assigning canonical presence or absence would also require provider ownership and collision rules for arbitrary tool-schema providers, whose ordinary output may contain duplicate names. Scoped registration already supplies the required per-agent isolation, and trusted assembly listeners own the protocol consistency of what they return, so named restoration adds machinery without establishing an independent boundary. ### Remove worker/process lifecycle guards with same-process hardening @@ -379,8 +374,8 @@ The implementation is smaller and its proof follows the same shape as its owners - Create and resume expose no partially configured handle; final-entry losers and publication failures clean every prepared resource. - Disposal retains scoped listeners and persistence through driver drain and final session work, then revokes the scope. - Durable, queued, model, worker, process, and wire values are owned at their real boundary; typed same-process values follow readonly contracts. -- Tool presentation and execution resolve the same live view, and committed results have one immutable observation point. -- Owner-final prompt/tool contributions survive cooperative assembly without freezing unrelated middleware behavior. +- ToolRegistry's presentation, lookup, and execution resolve the same live view before expert assembly transforms, and committed results have one immutable observation point. +- Registry contributions are deterministic inputs, while the trusted assembly waterfall owns the final model-visible composition. - Subagent start returns only a ready run, required signals cancel pending or live work, and disposal reaches the backend's quiescence contract. - Worker/process result precedence and cleanup remain correct under death, late messages, and bounded teardown. @@ -388,6 +383,8 @@ The implementation is smaller and its proof follows the same shape as its owners Scope-aware services still maintain global and identity-keyed maps, and operations must carry their real agent explicitly. Async create/resume and subagent start require callers to await ownership transfer and dispose returned handles. +A trusted `system-prompt/assemble` listener can remove or replace Code Mode and structured-output protocol pieces. This is deliberate: the listener owns final composition and must preserve any protocol the deployment expects to remain usable. + The design trusts typed plugins in the same process. It does not defend against arbitrary casts, stateful getters, mutation that violates readonly contracts, or a plugin deliberately using ambient service access outside the supported composition API. The [security and authority non-goal](2026-07-08-agent-scope-contexts.md#security-and-authority-are-non-goals) remains fundamental. These mechanisms prove registration composition, publication, and lifetime ownership; they do not prove confinement or parent-to-child non-escalation. diff --git a/docs/rfc/implemented/feature/2026-06-15-code-mode.md b/docs/rfc/implemented/feature/2026-06-15-code-mode.md index 16f42104be..60acfa7c88 100644 --- a/docs/rfc/implemented/feature/2026-06-15-code-mode.md +++ b/docs/rfc/implemented/feature/2026-06-15-code-mode.md @@ -16,7 +16,7 @@ Tool presentation belongs to the registry that owns tool visibility: implementin Three decisions, each elaborated in its own section below: -1. **Code Mode is a first-class presentation mode of `ToolRegistry`** (`dsh-tools`), selected by a validated `mode` config: `'native'` (the default, contributing the visible capability schemas), `'code'` (the registry contributes only its reserved `run_code` transport plus a generated SDK `.d.ts` in the system prompt), or `'both'` (native schemas and the transport + SDK). The registry shapes its wire contribution at the source and protects the transport pair through final assembly, so the logged request header records the same presentation the model receives. +1. **Code Mode is a first-class presentation mode of `ToolRegistry`** (`dsh-tools`), selected by a validated `mode` config: `'native'` (the default, contributing the visible capability schemas), `'code'` (the registry contributes only its reserved `run_code` transport plus a generated SDK `.d.ts` in the system prompt), or `'both'` (native schemas and the transport + SDK). The registry shapes its canonical contribution at the source; the cooperative prompt-assembly result remains authoritative, and the logged request header records exactly that returned presentation. 2. **Code execution is a capability seam** — `packages/code-runtime/` contains the interface package `@deepseek-ai/dsh-code-runtime`, which owns `ctx.codeRuntime` ([capability seams](../../implemented/architecture/2026-06-13-capability-seams.md); consumer = `dsh-tools`, with core-consumes-a-seam precedent in `agent-loop` → `dsh-llm`). The runtime knows nothing about tools: it is handed a program and named async bindings, runs the program, and reports `{ value, logs, error? }`. Language and substrate are backend properties, so a future Python or container backend is another implementation package, not a redesign. 3. **The shipped implementation is `@deepseek-ai/dsh-code-runtime-worker`**: one fresh Node worker thread per run, executing the model's TypeScript after type-strip, with bindings bridged over the message port, an empty environment, configurable heap/output/time caps, and hard termination. Its trust posture is bash-equivalent by design — no unsafe-acknowledgement flags — because the harness already ships `dsh-bash-local`, which executes arbitrary model-written shell commands with strictly *more* ambient authority. @@ -24,11 +24,13 @@ Three decisions, each elaborated in its own section below: `ToolRegistry` gains a schemastery-validated config (`static Config`), its first: `mode: 'native' | 'code' | 'both'`, default `'native'`. A deployment flips it from `cordis.yml` (`tools: { mode: code }`) — no code edit, per the no-hardcoded-tunables convention. -**Wire tool list = the registry's contribution.** The registry feeds assembly through a mode-aware provider: `'native'` contributes every capability visible to that assembly scope, `'code'` contributes only `run_code`, and `'both'` contributes both. Because [`PromptAssembly.tools` is the single source the loop's request header snapshots](../../../../packages/core/system-prompt/src/index.ts), the presentation is logged and reconstructable. The reserved transport is not a capability: it lives outside global/scoped registration and restriction layers, cannot be registered or shadowed, and cannot be named by `ctx.tools.restrict()`. Its `ToolDefinition` declares `ownerFinal: true`, so the provider reports the name as final and assembly restores its canonical schema or canonical absence after the waterfall. The mode governs only the registry's contribution; a deployment that deliberately installs another direct `systemPrompt.tools()` provider still owns that provider's schemas. +**Wire tool list = the registry's contribution before cooperative assembly.** The registry feeds assembly through a mode-aware provider: `'native'` contributes every capability visible to that assembly scope, `'code'` contributes only `run_code`, and `'both'` contributes both. Because [`PromptAssembly.tools` is the single source the loop's request header snapshots](../../../../packages/core/system-prompt/src/index.ts), the final presentation is logged and reconstructable. The reserved transport is not a capability: it lives outside global/scoped registration and restriction layers, cannot be registered or shadowed there, and cannot be named by `ctx.tools.restrict()`. The mode governs this provider's input to assembly; other direct `systemPrompt.tools()` providers own their schemas, and the trusted assembly waterfall owns the returned wire list. **Interaction with `toolOrder`, stated up front:** a configured `systemPrompt.toolOrder` naming native capabilities rejects every assembly under `mode: 'code'`, because those names are outside that mode's wire-validation universe. This is correct behavior, not a bug: a deployment using Code Mode updates its order config or drops it. -**The SDK prompt section.** Under `'code'` and `'both'` the registry registers one lazy prompt section (`tools:sdk`, in the 100–199 tool-guidance order band) whose thunk regenerates, for each assembly scope, a TypeScript declaration of every visible end-capability tool plus fixed usage instructions. It uses the same visibility resolver as lookup and execution, so scoped grants and shadows appear while restricted globals disappear; the reserved `run_code` transport itself is excluded. The thunk emits tools in lexicographic name order, so an unchanged visible set produces byte-identical text. The section declares `ownerFinal: true`, which restores its canonical contribution after every assembly listener and reserves the global name against scoped shadows. +**The SDK prompt section.** Under `'code'` and `'both'` the registry registers one lazy prompt section (`tools:sdk`, in the 100–199 tool-guidance order band) whose thunk regenerates, for each assembly scope, a TypeScript declaration of every visible end-capability tool plus fixed usage instructions. It uses the same visibility resolver as lookup and execution, so scoped grants and shadows appear while restricted globals disappear; the reserved `run_code` transport itself is excluded. The thunk emits tools in lexicographic name order, so an unchanged visible set produces byte-identical text. + +**Assembly ownership.** `run_code` and `tools:sdk` enter the trusted `system-prompt/assemble` waterfall as normal assembly inputs. A scoped `tools:sdk` section may shadow the global default before dispatch, and a listener may remove or replace either contribution. The waterfall's returned assembly is final, so whoever changes these inputs owns preserving a viable Code Mode protocol when the deployment expects Code Mode to remain usable; no restoration pass overrides deliberate composition. **Codegen.** A pure `jsonSchemaToTs(schema)` module inside `dsh-tools` (sibling of `json-schema.ts` — `schemas()` and the SDK are two projections of the same store) maps the JSON-Schema subset the `defineTool` DSL emits (object/string/number/boolean/array, `properties`, `required`, string `enum` → literal union, nested objects, array `items`, `description` → JSDoc) to a TS type literal. It is **total**: any construct outside that subset (`$ref`, `oneOf`/`anyOf`, `integer`, future MCP shapes, …) degrades to `unknown` without throwing. Because `ToolSchema.name` is an arbitrary string, the SDK is declared as one object constant — `declare const tools: { "some-mcp-tool"(args: …): Promise; bash(args: …): Promise; … }` — quoted keys make every name reachable with no sanitization or alias-collision logic. Typing is advisory (the runtime executes type-stripped JS); the instructions say so. @@ -89,16 +91,16 @@ The design consists of the `dsh-code-runtime` interface package, the `dsh-code-r Shipped surface: - **The seam**: `packages/code-runtime/` — `@deepseek-ai/dsh-code-runtime` (abstract `CodeRuntime`, the vocabulary above, `ctx.codeRuntime`) and `@deepseek-ai/dsh-code-runtime-worker` (the worker-thread backend, every cap a validated config field). Rows in the service map, capability-seams graph, config catalog, and cordis catalog. -- **The registry surface**: `ToolRegistry`'s `mode` config, mode-aware wire contribution, protected `tools:sdk` section and reserved `run_code` transport, `jsonSchemaToTs`/`renderToolsSdk` (exported), the dispatch bridge and `CodeRunFailedError`, and the `tool/code-dispatch` log event (declaration-merged into `SessionEventMap`, regenerated into the persistence catalog; `run_code` in the tool catalog). +- **The registry surface**: `ToolRegistry`'s `mode` config, mode-aware wire contribution, lazy `tools:sdk` section and reserved `run_code` transport, `jsonSchemaToTs`/`renderToolsSdk` (exported), the dispatch bridge and `CodeRunFailedError`, and the `tool/code-dispatch` log event (declaration-merged into `SessionEventMap`, regenerated into the persistence catalog; `run_code` in the tool catalog). - **The composed surface**: the `tools` config forwards through `agent-core` and both app packages (`stdio-agent`, `acp-agent`); `demo:code-mode` boots each UI example's `code-mode.cordis.yml` overlay (the worker runtime + `mode: 'code'` over the base tree); every program sub-dispatch resolves the same scoped capability view and re-enters the complete tool pipeline with an immutable link to its enclosing transport execution. -- **Interactions inherited by deployments**: a `toolOrder` naming native tools rejects every assembly under `'code'` (update or drop the order config when switching modes); restrictions can hide end capabilities but cannot remove the presentation transport; sub-call `additionalContext` is dropped by the bridge (a plural context channel is deferred until a real hook needs it through Code Mode); sub-dispatch stays serialized until tools can declare concurrency safety — the same metadata the native parallel-dispatch TODO waits on. +- **Interactions inherited by deployments**: a `toolOrder` naming native tools rejects every assembly under `'code'` (update or drop the order config when switching modes); restrictions can hide end capabilities but cannot remove the registry-owned presentation transport, while assembly listeners may rewrite the final model-visible surface and own its protocol integrity; sub-call `additionalContext` is dropped by the bridge (a plural context channel is deferred until a real hook needs it through Code Mode); sub-dispatch stays serialized until tools can declare concurrency safety — the same metadata the native parallel-dispatch TODO waits on. ## Testing What the suites pin, per tier: - **Unit — worker runtime** (real workers, no mocks): output/value capture and log-source attribution; error kinds (exception incl. non-erasable syntax, abort, worker-exit under OOM); the two budgets from both sides (a hot loop behind an un-awaited pending dispatch dies at `computeMs` busy time; a program idling on a slow binding outlives `computeMs` and dies only at `maxWallMs`); binding-bridge hostility (junk/forged port traffic incl. non-object messages and forged `log`/`done` cap bypass attempts, unknown names, duplicate ids, post-settlement replies, `__proto__`/`constructor`/`toString` binding names); structured-clone fallback and cap truncation; `env` emptiness verified from inside a program; dispose-awaits-exit. A real-load-path e2e runs the BUILT package under plain `node` so the worker entry resolves both unbuilt (tsx) and built — the published-artifact guard from [docs/testing.md](../../../testing.md). -- **Unit — registry integration**: the codegen table (DSL subset, quoted names, `unknown` degradation, byte-identical determinism); provider contribution per mode (`'native'` capabilities, `'code'` exactly `[run_code]`, `'both'` capabilities + `run_code`); reserved-name, restriction, shadow, assembly-protection, and `toolOrder × mode` invariants; missing-runtime / wrong-language loud failures; full-pipeline and opaque parent-token behavior for sub-dispatches; serialization non-overlap (a probe tool records enter/exit under `Promise.all`); abort aborting the in-flight sub-dispatch and abandoning queued ones; binding rejection on `isError` and on JSON-unrepresentable arguments; `CodeRunFailedError` → structured `isError` carrying kind + logs; `tool/code-dispatch` payloads (JSON-normalized arguments identical to what dispatched); `deriveMessages()` ignoring the event; sub-call `additionalContext` suppression; HMR safety. +- **Unit — registry integration**: the codegen table (DSL subset, quoted names, `unknown` degradation, byte-identical determinism); provider contribution per mode (`'native'` capabilities, `'code'` exactly `[run_code]`, `'both'` capabilities + `run_code`); reserved-name, restriction, scoped shadowing, authoritative assembly transformation, and `toolOrder × mode` invariants; missing-runtime / wrong-language loud failures; full-pipeline and opaque parent-token behavior for sub-dispatches; serialization non-overlap (a probe tool records enter/exit under `Promise.all`); abort aborting the in-flight sub-dispatch and abandoning queued ones; binding rejection on `isError` and on JSON-unrepresentable arguments; `CodeRunFailedError` → structured `isError` carrying kind + logs; `tool/code-dispatch` payloads (JSON-normalized arguments identical to what dispatched); `deriveMessages()` ignoring the event; sub-call `additionalContext` suppression; HMR safety. - **e2e (with-key, self-skips)**: a real model under `mode: 'code'` composes two bash calls in one program (`examples/coding-agent/tests/code-mode.e2e.ts`) — every logged `request/header` carries exactly `[run_code]`, the dispatch events land under the parent call, the file the program wrote exists, and the final answer is the curated output. - **Snapshot (keyless replay)**: goldens for a `run_code` turn under `'code'` and `'both'` (`code-mode-turn`, `both-mode-turn`), each its own header-pinning class — the SDK section text, the collapsed header tool list, the dispatch events, and the result card are committed and replayed. diff --git a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md index ed718686ef..9fef336d9c 100644 --- a/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md +++ b/docs/rfc/implemented/feature/2026-07-05-dynamic-workflows.md @@ -40,7 +40,7 @@ A `workflow` tool mirroring `dsh-tool-subagent`'s synchronous shape: start, awai `SubagentStartRequest.outputSchema` is implemented by `dsh-subagent-inprocess` for both in-process backends. Each structured child receives its own scoped capture tool, instruction, and enforcement registrations on `child.ctx`; concurrent children can use different schemas without sharing mutable policy, and disposing the child removes the entire attachment. -An output schema makes a schema-valid committed capture mandatory for successful child completion. The scoped runtime preserves the canonical capture tool and instruction, commits only a successful final outcome—including the enclosing `run_code` outcome for an SDK call—denies later side effects after capture becomes pending, and stops the child without another model step after commit. A validation failure remains a retryable tool error; clean completion without a committed capture settles as an error. +An output schema makes a schema-valid committed capture mandatory for successful child completion. The scoped runtime presents the capture tool and instruction, commits only a successful final outcome—including the enclosing `run_code` outcome for an SDK call—denies later side effects after capture becomes pending, and stops the child without another model step after commit. A validation failure remains a retryable tool error; clean completion without a committed capture settles as an error. `StructuredOutputSchema` is the raw enforceable JSON-Schema subset in `dsh-tools` (single-string `type`, `properties`/`required`/`additionalProperties`, `items`, scalar `enum`/`const`), and unsupported keywords fail loudly because that wire data becomes the capture tool's parameters verbatim. The [agent-scope runtime-design RFC](../architecture/2026-07-12-agent-scope-runtime-design.md#structured-output-commits-only-authoritative-outcomes) owns the assembly, commit, guard, and terminal-stop correctness algorithms. diff --git a/docs/rfc/implemented/feature/2026-07-06-explicit-tool-order.md b/docs/rfc/implemented/feature/2026-07-06-explicit-tool-order.md index 3604e70972..39345c2b53 100644 --- a/docs/rfc/implemented/feature/2026-07-06-explicit-tool-order.md +++ b/docs/rfc/implemented/feature/2026-07-06-explicit-tool-order.md @@ -17,7 +17,7 @@ The system-prompt assembly owns the canonical model-facing tool order, exactly w - The list must contain the rest entry exactly once and no duplicate names. - When `toolOrder` is unset, the canonical order is plain lexicographic name order (code-unit comparison, locale-independent), so determinism requires no configuration. -The policy is applied where the list is born: `assemble()`, before the `system-prompt/assemble` waterfall. The assembly canonicalizes the tools it collects from providers the same way it sorts sections by their `order` field — on the initial assembly, killing the registration-order entropy at its source. Everything downstream inherits the order untouched: the waterfall, the loop's `EpochHeader`, the `request/header` event, the deep-frozen request, and the dev invariant's cross-check all see one deterministic list, with no new loop change. +The policy is applied where the list is born: `assemble()`, before the `system-prompt/assemble` waterfall. The assembly canonicalizes the tools it collects from providers the same way it sorts sections by their `order` field — on the initial assembly, killing the registration-order entropy at its source. The waterfall therefore starts from one deterministic list; when a listener leaves that order intact, the loop's `EpochHeader`, the `request/header` event, the deep-frozen request, and the dev invariant's cross-check inherit it with no new loop change. Scope is deliberately narrow: this fixes the REGISTRATION-ORDER race, not plugin behavior. A `system-prompt/assemble` listener may still add, remove, or rearrange tools — same as it may edit sections after their sort — and owns the determinism of what it emits; the waterfall contract already demands deterministic listeners (the reconstructability invariant would catch a listener that diverges between build and replay). @@ -36,8 +36,8 @@ Config plumbing follows the `persona` precedent, and `toolOrder` sits beside it: ## Consequences -- Every assembly — and therefore every `request/header` event and model request — has a deterministic tool order on every host; the CI-vs-local golden flip is structurally gone. The default order is lexicographic, no longer registration order. -- `PromptAssembly.tools` itself is canonical, so every assembly consumer (the loop, waterfall listeners, any future prompt inspector) sees the model-facing order; provider registration order is observable nowhere downstream of the registry. +- Every registry-built assembly starts with a deterministic tool order on every host; absent an expert listener that deliberately changes it, every `request/header` event and model request inherits that order. The CI-vs-local registration-order flip is structurally gone, and the default is lexicographic. +- The initial `PromptAssembly.tools` is canonical, so waterfall listeners start from the model-facing order; provider registration order is observable nowhere before that cooperative seam. - The snapshot suite's single pinned request-header fixture (`text-turn`) carries the new canonical tool order; every other ACP snapshot keeps the header bulk scrubbed as `{{system}}`/`{{tools}}`, per the pinned-header design. - A pure tool reordering between steps is representable only as a `request/header` `'fallback'` snapshot (the name-keyed `ToolsDelta` cannot express it); with a stable canonical order such reorders no longer occur in practice, so the fallback path stays a safety valve. - The `toolOrder` key rides the app → `agent-core` → `SystemPrompt` forwarding chain, so deployments set it next to `persona` in the app config; `dsh-llm` and the agent loop are untouched. diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md index ebea9b20c1..9ea71d3005 100644 --- a/docs/tool-catalog.md +++ b/docs/tool-catalog.md @@ -16,7 +16,7 @@ This table connects model-visible tool names to the plugin package and service s | Tool package | Model-visible names | Requires | Writes / affects | Shipped aliases | Deployment note | | --- | --- | --- | --- | --- | --- | | `@deepseek-ai/dsh-tool-ask-user` | `ask_user_question` | `ctx.tools`, `ctx.userInteraction` | `tool/call`, `tool/result after a UI/provider answers the question` | - | ask_user_question pauses the tool call until the active UI provider returns a human answer. | -| `@deepseek-ai/dsh-tools` | `run_code` | `ctx.tools`, `ctx.codeRuntime (execution time)`, `ctx.systemPrompt` | `tool/call`, `one tool/code-dispatch per bridged sub-call`, `tool/result` | - | Owned by the tool registry as a reserved transport outside filterable capability layers under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the registry's only canonical wire contribution; the other visible capabilities are declared in a protected TypeScript SDK section, and a program calls them through serialized bindings that re-enter the complete guarded tool pipeline and link each nested execution to this outer result. | +| `@deepseek-ai/dsh-tools` | `run_code` | `ctx.tools`, `ctx.codeRuntime (execution time)`, `ctx.systemPrompt` | `tool/call`, `one tool/code-dispatch per bridged sub-call`, `tool/result` | - | Owned by the tool registry as a reserved transport outside filterable capability layers under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the registry's only wire contribution; the other visible capabilities are declared in a generated TypeScript SDK section, and a program calls them through serialized bindings that re-enter the complete guarded tool pipeline and link each nested execution to this outer result. | | `@deepseek-ai/dsh-tool-bash` | `bash`, `bash_kill`, `bash_output` | `ctx.tools`, `ctx.bash` | `tool/call`, `tool/result`, `context/message via agent.inject() for background completion notices` | - | The bash/bash_output/bash_kill tools are model-facing consumers of the bash executor seam. | | `@deepseek-ai/dsh-tool-cordis` | `cordis_inspect`, `cordis_mount`, `cordis_unmount` | `ctx.tools` | `tool/call`, `tool/result`, `live plugin-tree mutations (mount/unmount)` | - | Ships in examples/cordis-agent only (a deliberate opt-in — mounted code gets the real ctx, see docs/rfc/implemented/feature/2026-07-08-self-referential-cordis-toolset.md). Plugins the model mounts may register ADDITIONAL model-visible tools at runtime; the request-header ToolsDelta logs those tool-set changes. | | `@deepseek-ai/dsh-tool-fs` | `edit`, `read`, `write` | `ctx.tools`, `ctx.fs`, `ctx.systemPrompt` | `tool/call`, `fs/write-intent or fs/edit-intent for mutations`, `fs/observed after successful file operations`, `tool/result` | - | The read-before-write/edit policy is added by `@deepseek-ai/dsh-fs-policy` (an `fs/*` event-gate plugin, no schema change); a deployment that loads these tools is expected to also load it. The tool schemas above are identical with or without the policy plugin. | @@ -119,7 +119,7 @@ Execute a TypeScript program against the available tools. Write the BODY of an a Source: [`packages/core/tools/src/code-mode.ts`](../packages/core/tools/src/code-mode.ts) -Owned by the tool registry as a reserved transport outside filterable capability layers under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the registry's only canonical wire contribution; the other visible capabilities are declared in a protected TypeScript SDK section, and a program calls them through serialized bindings that re-enter the complete guarded tool pipeline and link each nested execution to this outer result. +Owned by the tool registry as a reserved transport outside filterable capability layers under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the registry's only wire contribution; the other visible capabilities are declared in a generated TypeScript SDK section, and a program calls them through serialized bindings that re-enter the complete guarded tool pipeline and link each nested execution to this outer result. ## `@deepseek-ai/dsh-tool-bash` diff --git a/examples/README.md b/examples/README.md index e97c0fa9d5..7f711cb297 100644 --- a/examples/README.md +++ b/examples/README.md @@ -19,7 +19,7 @@ A REPL agent demo: DeepSeek V4 + the `read`/`write`/`edit` filesystem tools + th Run with: `pnpm run demo:repl` (needs `DEEPSEEK_API_KEY` in the environment or a gitignored repo-root `.env`). See [coding-agent/README.md](coding-agent/README.md) for details. -Its `code-mode.cordis.yml` overlay flips the same tree to **Code Mode**: the worker-thread code runtime is loaded and the tool registry runs `mode: code`, so its canonical wire contribution is the protected `run_code` transport plus a protected generated TypeScript SDK section, and the model composes the other tools by writing a program whose output it curates. Run with: `pnpm run demo:code-mode` (the REPL is the default UI; `acp` as the argument serves the acp-agent example's same-shaped overlay instead) — see the [Code Mode section](coding-agent/README.md#code-mode) for what to try. +Its `code-mode.cordis.yml` overlay flips the same tree to **Code Mode**: the worker-thread code runtime is loaded and the tool registry runs `mode: code`, so its registry contribution is the reserved `run_code` transport plus a generated TypeScript SDK section, and the model composes the other tools by writing a program whose output it curates. Run with: `pnpm run demo:code-mode` (the REPL is the default UI; `acp` as the argument serves the acp-agent example's same-shaped overlay instead) — see the [Code Mode section](coding-agent/README.md#code-mode) for what to try. ## cordis-agent diff --git a/examples/coding-agent/README.md b/examples/coding-agent/README.md index 37a43481e5..5a607d3c7b 100644 --- a/examples/coding-agent/README.md +++ b/examples/coding-agent/README.md @@ -33,7 +33,7 @@ The id is wired through `cordis.yml` (`resumeSessionId: !!js process.env.RESUME_ ## Code Mode -[`code-mode.cordis.yml`](code-mode.cordis.yml) is this same tree flipped to [Code Mode](../../docs/rfc/implemented/feature/2026-06-15-code-mode.md): an include overlay over `./cordis.yml` whose two patches insert the worker-thread code runtime (`@deepseek-ai/dsh-code-runtime-worker`, registering `ctx.codeRuntime`) and set `tools: { mode: code }` on the app. The registry contributes exactly one protected wire transport — reserved `run_code` — plus a protected TypeScript SDK section declaring the visible end-capability tools. The model composes those capabilities by writing a program; each program call carries an immutable link to its enclosing transport, bridges back through pre-policy, monotonic guards, around dispatch, post-policy, and final-result observation one at a time, and is logged as a `tool/code-dispatch` session event. Only what the program prints or returns re-enters model context. (Flip the mode to `both` to offer native calls and `run_code` side by side.) +[`code-mode.cordis.yml`](code-mode.cordis.yml) is this same tree flipped to [Code Mode](../../docs/rfc/implemented/feature/2026-06-15-code-mode.md): an include overlay over `./cordis.yml` whose two patches insert the worker-thread code runtime (`@deepseek-ai/dsh-code-runtime-worker`, registering `ctx.codeRuntime`) and set `tools: { mode: code }` on the app. The registry contributes exactly one reserved wire transport — `run_code` — plus a generated TypeScript SDK section declaring the visible end-capability tools. The model composes those capabilities by writing a program; each program call carries an immutable link to its enclosing transport, bridges back through pre-policy, monotonic guards, around dispatch, post-policy, and final-result observation one at a time, and is logged as a `tool/code-dispatch` session event. Only what the program prints or returns re-enters model context. (Flip the mode to `both` to offer native calls and `run_code` side by side.) ```sh pnpm run demo:code-mode # this overlay under the REPL (default UI) diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts index 4b5d614ac4..b4420e80c7 100644 --- a/packages/cordis/tool-cordis/src/api-catalog.ts +++ b/packages/cordis/tool-cordis/src/api-catalog.ts @@ -187,7 +187,7 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [ }, { key: 'systemPrompt', - summary: 'Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, named prompt variables, and owner-final contributions; the agent loop calls `assemble(context)` once per step.', + summary: 'Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections, tool-schema providers, and named prompt variables; the agent loop calls `assemble(context)` once per step.', methods: [ 'section(section: PromptSection): () => void', 'tools(provider: (context: AssembleContext) => ToolProviderResult): () => void', @@ -748,7 +748,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'PromptSection', - declaration: 'export interface PromptSection {\n readonly name: string;\n readonly order: number;\n readonly text: string | ((context: AssembleContext) => string);\n readonly ownerFinal?: boolean;\n}', + declaration: 'export interface PromptSection {\n readonly name: string;\n readonly order: number;\n readonly text: string | ((context: AssembleContext) => string);\n}', }, { name: 'ReasoningBlock', @@ -920,7 +920,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'ToolDefinition', - declaration: 'export interface ToolDefinition extends ToolSchema {\n execute(args: unknown, exec: ToolExecution): Promise;\n timeoutMs?: number;\n readonly ownerFinal?: boolean;\n presentCall?(args: unknown): ToolCallView | undefined;\n presentResult?(args: unknown, result: ToolResult): ToolResultView | undefined;\n}', + declaration: 'export interface ToolDefinition extends ToolSchema {\n execute(args: unknown, exec: ToolExecution): Promise;\n timeoutMs?: number;\n presentCall?(args: unknown): ToolCallView | undefined;\n presentResult?(args: unknown, result: ToolResult): ToolResultView | undefined;\n}', }, { name: 'ToolErrorInfo', @@ -952,7 +952,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [ }, { name: 'ToolProviderResult', - declaration: 'export interface ToolProviderResult {\n readonly schemas: readonly ToolSchema[];\n readonly knownNames?: readonly string[];\n readonly ownerFinalNames?: readonly string[];\n}', + declaration: 'export interface ToolProviderResult {\n readonly schemas: readonly ToolSchema[];\n readonly knownNames?: readonly string[];\n}', }, { name: 'ToolRestriction', diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md index cfe4976af4..9ee324b0c3 100644 --- a/packages/core/agent/README.md +++ b/packages/core/agent/README.md @@ -31,7 +31,7 @@ Agent *creation* is provided by the plugin implementing `AgentFactory` (`dsh-age The lifecycle edges have two important local caveats. `agent/created` runs after scoped setup and after both session and agent registry entries exist. Setup is trusted composition-only code; the immediately following non-vetoing `agent/session-start` notification is the first supported startup injection point. `agent/disposed` always means the exact agent has left the registry. AgentLoop emits it after its driver is quiescent, while ordered teardown may still be detaching the session and unwinding the scope; custom agents registered directly own any stronger driver-ordering contract themselves. -Most interception points are cooperative waterfalls returning seam-specific decisions. `agent/pre-step` is a serial surface-mutation checkpoint, while `agent/turn-stop` is the owner-final exception: it runs after ordinary continuation and steering folding, and its terminal state remains through turn close and flush so steering from those later listeners cannot create an extra step or turn. Ordinary queued prompts remain intact. The full rationale is in the [agent-scope runtime-design RFC](../../../docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md#owner-final-policy-four-narrow-boundaries). +Most interception points are cooperative waterfalls returning seam-specific decisions. `agent/pre-step` is a serial surface-mutation checkpoint, while `agent/turn-stop` is the terminal serial fold: it runs after ordinary continuation and steering folding, and a returned stop remains in force through turn close and flush so later steering cannot create an extra step or turn. Ordinary queued prompts remain intact. The full rationale is in the [agent-scope runtime-design RFC](../../../docs/rfc/implemented/architecture/2026-07-12-agent-scope-runtime-design.md#three-execution-boundaries-are-deliberately-one-way). Turn and step boundaries and the model token stream are durable `session/event` facts rather than mirrored `agent/*` notifications. Consumers read `turn/*`, `step/*`, and `assistant/chunk` from the session feed; tool policy and outcome observation belong to the complete pipeline documented by [`dsh-tools`](../tools/README.md). diff --git a/packages/core/system-prompt/README.md b/packages/core/system-prompt/README.md index 009dc6b3fe..dc1101faaf 100644 --- a/packages/core/system-prompt/README.md +++ b/packages/core/system-prompt/README.md @@ -1,6 +1,6 @@ # dsh-system-prompt -System prompt assembly registry. Plugins contribute ordered text sections, tool-schema providers, and named prompt variables; contributions that implement required protocol may declare themselves owner-final. The agent loop calls `assemble(context)` once per step, and `renderPrompt(assembly)` is the full system prompt the model sees. The plugin registers the harness-owned openers itself — the static `harness:identity` section and the global default `deployment:persona` section — so they remain available regardless of which loop plugin drives an agent. An agent-scoped contribution with the same persona name shadows that default for its agent. +System prompt assembly registry. Plugins contribute ordered text sections, tool-schema providers, and named prompt variables. The agent loop calls `assemble(context)` once per step, and `renderPrompt(assembly)` is the full system prompt the model sees. The plugin registers the harness-owned openers itself — the static `harness:identity` section and the global default `deployment:persona` section — so they remain available regardless of which loop plugin drives an agent. An agent-scoped contribution with the same persona name shadows that default for its agent. ## Config @@ -13,19 +13,19 @@ System prompt assembly registry. Plugins contribute ordered text sections, tool- ### Public API -- `ctx.systemPrompt.section(section: PromptSection): () => void` Contribute a section. The layer is the calling context's scope: `agent.ctx` contributes to that agent alone, shadowing a same-named global section there. Duplicate names within one layer and non-finite orders throw. `ownerFinal: true` restores this section's canonical definition after the complete waterfall and reserves a global section against scoped shadows. Disposed with the calling fiber. -- `ctx.systemPrompt.tools(provider: (context: AssembleContext) => ToolProviderResult): () => void` Contribute tool schemas, evaluated at each assembly with that assembly's context. `ToolProviderResult` = `{ schemas, knownNames?, ownerFinalNames? }`: `schemas` is the post-restriction visible set; `knownNames` is the pre-restriction universe used by `toolOrder`; `ownerFinalNames` makes those tools' canonical presence or absence survive the waterfall. A provider must not return a schema named `TOOL_ORDER_REST`. Scoped providers are consulted only for their scope's assemblies. Disposed with the calling fiber. +- `ctx.systemPrompt.section(section: PromptSection): () => void` Contribute a section. The layer is the calling context's scope: `agent.ctx` contributes to that agent alone, shadowing a same-named global section there. Duplicate names within one layer and non-finite orders throw. Disposed with the calling fiber. +- `ctx.systemPrompt.tools(provider: (context: AssembleContext) => ToolProviderResult): () => void` Contribute tool schemas, evaluated at each assembly with that assembly's context. `ToolProviderResult` = `{ schemas, knownNames? }`: `schemas` is the post-restriction visible set; `knownNames` is the pre-restriction universe used by `toolOrder`. A provider must not return a schema named `TOOL_ORDER_REST`. Scoped providers are consulted only for their scope's assemblies. Disposed with the calling fiber. - `ctx.systemPrompt.variable(name: string, provider: (context) => string | undefined): () => void` Contribute a prompt variable, referenced from section text as `{{name}}`. Scoped variables shadow a same-named global for that agent. Duplicate-in-layer or unreferenceable names throw; `undefined` means "no value for this assembly". Disposed with the calling fiber. -- `ctx.systemPrompt.assemble(context?: AssembleContext): Promise` Assemble the prompt for one caller: the global layer merged with `context.scope`'s layer, with tool schemas detached before the transform seam. Runs through the scope-filtered `system-prompt/assemble` waterfall, then restores owner-final contributions from a private pre-waterfall snapshot. Restored entries keep canonical relative order without undoing listener reordering of ordinary entries. Rejects when a configured `toolOrder` names a tool outside the providers' `knownNames` universe, or when a provider returns the reserved rest-entry name. +- `ctx.systemPrompt.assemble(context?: AssembleContext): Promise` Assemble the prompt for one caller: the global layer merged with `context.scope`'s layer, with tool schemas detached before the transform seam. Runs through the scope-filtered `system-prompt/assemble` waterfall and returns its authoritative result. Rejects when a configured `toolOrder` names a tool outside the providers' `knownNames` universe, or when a provider returns the reserved rest-entry name. ### Live events -Prompt assembly is the scope-filtered transformable seam; registry change is the deliberately unfiltered notification that an assembly input changed, possibly for one scope. Exact signatures, dispatch modes, and filtering contracts live in the generated [Cordis event catalog](../../../docs/cordis-catalog/events.md). Owner-final restoration applies only after a successful assembly waterfall returns. +`system-prompt/assemble` is an expert cooperative seam: its returned assembly is authoritative, and a listener that replaces or removes entries owns preserving any active Code Mode or structured-output protocol. Prefer [`ToolRegistry.restrict()`](../tools/README.md) when tool filtering must stay aligned across model presentation, lookup, and execution. Registry change is the deliberately unfiltered notification that an assembly input changed, possibly for one scope; exact signatures, dispatch modes, and filtering contracts live in the generated [Cordis event catalog](../../../docs/cordis-catalog/events.md). ### Key types - `AssembleContext` — what one `assemble()` call is FOR. Merge-extensible; declares `scope?: ScopeKey` (the layer selector) here, and `dsh-agent` declares `agent?: Agent` (the typed DX field — never set without `scope`; use `assembleContextFor(agent)`). Providers must tolerate absent fields (a bare `assemble()` carries an empty, scope-less context). -- `PromptSection` — `{ name, order, text, ownerFinal? }`. Sections are concatenated in ascending `order`; `ownerFinal` is reserved for required protocol instructions. Order bands: `-100` is the harness identity, `0` the deployment persona, tool guidance uses `100–199`. +- `PromptSection` — `{ name, order, text }`. Sections are concatenated in ascending `order`. Order bands: `-100` is the harness identity, `0` the deployment persona, tool guidance uses `100–199`. - `PromptAssembly` — `{ sections: AssembledSection[], tools: ToolSchema[], variables: Record }`. Section texts arrive resolved but not yet interpolated; `variables` holds every registered variable resolved against the context. Tool schemas are part of the assembly by design: "what the model is told it can do" is one coherent thing, even though adapters transmit schemas as a separate wire field. - `renderPrompt(assembly)` — interpolates `{{variable}}` references in each section, drops empty sections, joins with blank lines. STRICT: an unknown reference (`Object.hasOwn` lookup — prototype names like `{{constructor}}` are unknown), a registered-but-valueless reference, a malformed complete `{{…}}` group, or a `{{` that opens no complete group while a `}}` still follows (`{{{model}}}`) throws — fail loud beats shipping a malformed prompt. A lone `{{` with no `}}` anywhere after it passes through verbatim; substituted values are never re-scanned. @@ -36,8 +36,7 @@ Merge-extensible: plugins can declare extra fields on `PromptAssembly` and `Asse - Section providers: tool packages own their cross-call guidance (`tool:bash`, `tool:read`, …); this plugin owns `harness:identity` and `deployment:persona`. - Variable providers: the agent loop registers `model` and `cwd`; any plugin can register the facts it owns (a future `date`, git state, …). - Tool schema providers: `ToolRegistry` registers itself as a tool provider automatically. -- The `system-prompt/assemble` waterfall: mutate or replace the assembly per caller (dynamic tool filtering, extra variables). -- Owner-final contributions: protocol owners declare finality on the section or tool contribution itself; there is no independent protection registry. +- The [`system-prompt/assemble` waterfall](#live-events): cooperatively mutate or replace the assembly per caller. ### What is NOT here diff --git a/packages/core/system-prompt/src/index.ts b/packages/core/system-prompt/src/index.ts index 0adbce0184..63ba6b350d 100644 --- a/packages/core/system-prompt/src/index.ts +++ b/packages/core/system-prompt/src/index.ts @@ -1,8 +1,7 @@ /** * System prompt assembly registry. Plugins contribute ordered text sections, - * tool schema providers, and named prompt variables; protocol contributions - * may declare themselves owner-final. `assemble(context)` collates them through a waterfall that - * runs once per step, restores owner-final contributions, and `renderPrompt` + * tool schema providers, and named prompt variables; `assemble(context)` + * collates them through a waterfall that runs once per step, and `renderPrompt` * interpolates `{{variable}}` references into the final text. * * The harness-owned prompt openers live here too: this plugin registers the @@ -30,13 +29,18 @@ declare module 'cordis' { * {@link PromptAssembly} (sections + tools + variables) before it is * rendered. Bound to the {@link SystemPrompt} service; call `next()` to * delegate. - * @param assembly - the assembly built from the registered sections, tool - * providers, and variable providers; listeners may mutate it or return a - * replacement. + * * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): the carrier is keyed * by `context.scope` — a listener registered through `agent.ctx` fires only * for that agent's assemblies; a plain plugin listener fires for every * assembly (scope-less ones included, dispatched subject-less). + * + * The returned assembly is authoritative. This is an expert composition + * seam: a listener that removes or replaces another plugin's protocol + * contribution owns preserving that protocol's invariants. + * @param assembly - the assembly built from the registered sections, tool + * providers, and variable providers; listeners may mutate it or return a + * replacement. * @param context - the per-assembly {@link AssembleContext} the caller * passed to {@link SystemPrompt.assemble} (e.g. which agent the prompt * is for), so a listener can filter or extend per agent. @@ -93,12 +97,6 @@ export interface PromptSection { * interpolated later, by {@link renderPrompt}. */ readonly text: string | ((context: AssembleContext) => string) - /** - * Whether this section's canonical presence and definition survive the - * complete assembly waterfall. Use this only for owner-required protocol - * instructions; ordinary sections remain transformable. - */ - readonly ownerFinal?: boolean } /** One section of an assembly: {@link PromptSection} with its text resolved. */ @@ -126,12 +124,6 @@ export interface ToolProviderResult { readonly schemas: readonly ToolSchema[] /** The pre-restriction name universe for config validation (defaults to `schemas`' names). */ readonly knownNames?: readonly string[] - /** - * Tool names this provider owns finally. The names need not be present in - * `schemas`: naming a mode-hidden tool makes its canonical absence final, so - * an assembly listener cannot fabricate it onto the wire. - */ - readonly ownerFinalNames?: readonly string[] } /** @@ -224,30 +216,6 @@ function orderTools(tools: ToolSchema[], toolOrder: string[] | undefined, knownN name === TOOL_ORDER_REST ? rest : tools.filter(tool => tool.name === name)) } -/** Restore owner-final entries from `canonical`, anchored before their next ordinary canonical neighbor. */ -function restoreOwnerFinal( - canonical: readonly T[], result: readonly T[], ownerFinalNames: ReadonlySet, -): T[] { - const restored = result.filter(entry => !ownerFinalNames.has(entry.name)) - for (const [index, entry] of canonical.entries()) { - if (!ownerFinalNames.has(entry.name)) continue - // Protected entries are inserted in canonical order. Anchor each one - // before the first later UNPROTECTED canonical neighbor that survived the - // waterfall; if none survived, it belongs at the end. Looking only at - // ordinary neighbors avoids reversing adjacent owner-final entries. - const following = new Set( - canonical.slice(index + 1) - .filter(candidate => !ownerFinalNames.has(candidate.name)) - .map(candidate => candidate.name), - ) - const next = restored.findIndex(candidate => following.has(candidate.name)) - // `canonical` is an owned snapshot made before the waterfall; no second - // clone is needed when moving its entries into the finalized assembly. - restored.splice(next < 0 ? restored.length : next, 0, entry) - } - return restored -} - /** Lexicographic (code-unit) name comparison — locale-independent, so the order is identical on every machine. */ function compareToolNames(a: ToolSchema, b: ToolSchema): number { return a.name < b.name ? -1 : a.name > b.name ? 1 : 0 @@ -364,10 +332,10 @@ function interpolate(section: AssembledSection, variables: Record = z.object({ @@ -420,10 +388,8 @@ export class SystemPrompt extends Service { * scoped context (`agent.ctx`) contributes to that scope alone — and a * scoped section SHADOWS a same-named global section for that scope's * assemblies (most-specific-wins; this is how a per-agent persona overrides - * `deployment:persona`) unless that global contribution is owner-final: it - * reserves its section name against scoped shadows so the - * registration owner—not a later scope—defines the canonical value. The - * readonly typed contribution is borrowed until disposal; only the semantic + * `deployment:persona`). The readonly typed contribution is borrowed until + * disposal; only the semantic * finite-order rule is checked at runtime. Throws if the SAME layer already has the name (a * duplicate would silently double prompt text — e.g. a double-loaded tool * plugin; the global-duplicate message names `agent.ctx` as the per-agent @@ -439,17 +405,6 @@ export class SystemPrompt extends Service { throw new TypeError(`prompt section "${section.name}" order must be a finite number`) } const scope = scopeOf(this.ctx) - if (scope !== undefined - && this.sections.some(global => global.name === section.name && global.ownerFinal === true)) { - throw new Error(`prompt section "${section.name}" is globally owner-final and cannot be shadowed in an agent scope`) - } - if (scope === undefined && section.ownerFinal === true) { - const hasScopedShadow = [...this.scopedSections.values()] - .some(layer => layer.some(scoped => scoped.name === section.name)) - if (hasScopedShadow) { - throw new Error(`owner-final prompt section "${section.name}" cannot be registered while a scoped shadow exists`) - } - } const dispose = this.ctx.effect(function* (this: SystemPrompt) { const layer = scope === undefined ? this.sections @@ -602,11 +557,10 @@ export class SystemPrompt extends Service { * name restricted away for this scope is a normal absence), and every * visible variable resolved against `context` into `assembly.variables`. * Tool schemas are detached because assembly waterfalls may mutate them. - * Runs through the `system-prompt/assemble` - * waterfall, giving listeners the opportunity to mutate or replace the - * assembly, then restores every contribution whose owner declared it final - * from the pre-waterfall canonical assembly. Like the sections' `order` sort, tool - * canonicalization happens on the initial assembly; ordinary listener + * Runs through the `system-prompt/assemble` waterfall, giving listeners the + * opportunity to mutate or replace the assembly; the returned value is the + * authoritative model-visible composition. Like the sections' `order` + * sort, tool canonicalization happens on the initial assembly; listener * output owns its own determinism. Await the result before reading the * assembly values — waterfall listeners may be async. * Interpolation happens later, in {@link renderPrompt}. @@ -638,11 +592,6 @@ export class SystemPrompt extends Service { for (const section of (scope === undefined ? [] : this.scopedSections.get(scope)) ?? []) { sectionByName.set(section.name, section) } - const ownerFinalSections = new Set( - [...sectionByName.values()] - .filter(section => section.ownerFinal === true) - .map(section => section.name), - ) // Tools: consult the global providers plus the scope's, each with this // assembly's context. `schemas` are what the model may see (already // post-restriction, per provider); `knownNames` (defaulting to the @@ -655,7 +604,6 @@ export class SystemPrompt extends Service { ] const collected: ToolSchema[] = [] const knownNames = new Set() - const ownerFinalTools = new Set() for (const provider of providers) { const result = provider(context) const schemas = result.schemas.map(({ name, description, parameters }): ToolSchema => ({ @@ -666,7 +614,6 @@ export class SystemPrompt extends Service { const acceptedKnownNames = result.knownNames ?? schemas.map(tool => tool.name) collected.push(...schemas) for (const name of acceptedKnownNames) knownNames.add(name) - for (const name of result.ownerFinalNames ?? []) ownerFinalTools.add(name) } const assembly: PromptAssembly = { sections: [...sectionByName.values()] @@ -679,27 +626,10 @@ export class SystemPrompt extends Service { tools: orderTools(collected, this.toolOrder, knownNames), variables, } - // Snapshot only the owner-final fields. The waterfall receives - // `assembly` by reference and may mutate it or return a replacement; these - // independent snapshots remain the authoritative registry product. - const canonicalSections = ownerFinalSections.size > 0 ? structuredClone(assembly.sections) : undefined - const canonicalTools = ownerFinalTools.size > 0 ? structuredClone(assembly.tools) : undefined - const result = await this.ctx.waterfall( + return this.ctx.waterfall( scopeTarget(this, scope), 'system-prompt/assemble', assembly, context, () => Promise.resolve(assembly), ) - // Build a replacement instead of mutating the waterfall result: a - // listener may legitimately return a frozen assembly. Merge-extensible - // fields ride through the spread untouched. - return { - ...result, - ...canonicalSections !== undefined - ? { sections: restoreOwnerFinal(canonicalSections, result.sections, ownerFinalSections) } - : {}, - ...canonicalTools !== undefined - ? { tools: restoreOwnerFinal(canonicalTools, result.tools, ownerFinalTools) } - : {}, - } } } diff --git a/packages/core/system-prompt/tests/scoped.spec.ts b/packages/core/system-prompt/tests/scoped.spec.ts index 4becf5192a..a452bb6797 100644 --- a/packages/core/system-prompt/tests/scoped.spec.ts +++ b/packages/core/system-prompt/tests/scoped.spec.ts @@ -63,17 +63,6 @@ describe('scoped sections', () => { expect(() => scope.ctx.systemPrompt.section({ name: 'y', order: 1, text: 'b' })).toThrow(/already registered in this scope/) }) - it('rejects a global owner-final section added after a scoped shadow', async () => { - const ctx = await mount() - const scope = await mintScope(ctx, 'child') - scope.ctx.systemPrompt.section({ name: 'reserved', order: 1, text: 'scoped reserved' }) - - expect(() => ctx.systemPrompt.section({ - name: 'reserved', order: 1, text: 'global reserved', ownerFinal: true, - })).toThrow('owner-final prompt section "reserved"') - expect(renderPrompt(await ctx.systemPrompt.assemble({ scope: scopeKeyOf(scope) }))) - .toContain('scoped reserved') - }) }) describe('scoped variables', () => { @@ -161,35 +150,4 @@ describe('scoped assemble dispatch', () => { expect(shaped).toHaveLength(1) }) - it('scoped owner-final contributions finalize only their assemblies and disappear with the scope', async () => { - const ctx = await mount() - const scope = await mintScope(ctx, 'child') - const key = scopeKeyOf(scope) - ctx.systemPrompt.section({ name: 'required', order: 10, text: 'required' }) - ctx.systemPrompt.tools(() => ({ schemas: [schema('required')] })) - scope.ctx.systemPrompt.section({ - name: 'required', order: 10, text: 'scoped required', ownerFinal: true, - }) - scope.ctx.systemPrompt.tools(() => ({ - schemas: [schema('required')], ownerFinalNames: ['required'], - })) - ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { - const result = await next() - result.sections = result.sections.filter(section => section.name !== 'required') - result.tools = result.tools.filter(tool => tool.name !== 'required') - return result - }, { prepend: true }) - - const scoped = await ctx.systemPrompt.assemble({ scope: key }) - const global = await ctx.systemPrompt.assemble() - expect(scoped.sections.some(section => section.name === 'required')).toBe(true) - expect(scoped.tools.some(tool => tool.name === 'required')).toBe(true) - expect(global.sections.some(section => section.name === 'required')).toBe(false) - expect(global.tools.some(tool => tool.name === 'required')).toBe(false) - - await scope.dispose() - const disposed = await ctx.systemPrompt.assemble({ scope: key }) - expect(disposed.sections.some(section => section.name === 'required')).toBe(false) - expect(disposed.tools.some(tool => tool.name === 'required')).toBe(false) - }) }) diff --git a/packages/core/system-prompt/tests/system-prompt.spec.ts b/packages/core/system-prompt/tests/system-prompt.spec.ts index dfdfef42dc..c7436711fa 100644 --- a/packages/core/system-prompt/tests/system-prompt.spec.ts +++ b/packages/core/system-prompt/tests/system-prompt.spec.ts @@ -213,67 +213,6 @@ describe('SystemPrompt', () => { expect(assembly.sections).toHaveLength(0) }) - describe('owner-final contributions', () => { - it('restores exact owner-final definitions after every listener, in canonical relative order', async () => { - const ctx = new Context() - await ctx.plugin(SystemPrompt) - ctx.systemPrompt.section({ name: 'before', order: 10, text: 'before' }) - ctx.systemPrompt.section({ name: 'protected', order: 20, text: 'canonical section', ownerFinal: true }) - ctx.systemPrompt.section({ name: 'after', order: 30, text: 'after' }) - ctx.systemPrompt.tools(() => ({ schemas: [ - { name: 'alpha', description: 'alpha', parameters: {} }, - { name: 'protected', description: 'canonical tool', parameters: { type: 'object', properties: { answer: { type: 'number' } } } }, - { name: 'zulu', description: 'zulu', parameters: {} }, - ], ownerFinalNames: ['protected'] })) - - // Service-level finalization restores the canonical entries after the - // complete listener chain returns. - ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { - const result = await next() - return Object.freeze({ - sections: [ - ...result.sections.filter(section => section.name !== 'protected'), - { name: 'protected', order: -999, text: 'wrong section' }, - { name: 'protected', order: 999, text: 'duplicate section' }, - ], - tools: [ - ...result.tools.filter(tool => tool.name !== 'protected'), - { name: 'protected', description: 'wrong tool', parameters: {} }, - { name: 'protected', description: 'duplicate tool', parameters: {} }, - ], - variables: result.variables, - }) - }, { prepend: true }) - - const assembly = await ctx.systemPrompt.assemble() - const protectedSections = assembly.sections.filter(section => section.name === 'protected') - const protectedTools = assembly.tools.filter(tool => tool.name === 'protected') - expect(protectedSections).toEqual([{ name: 'protected', order: 20, text: 'canonical section' }]) - expect(protectedTools).toEqual([{ - name: 'protected', - description: 'canonical tool', - parameters: { type: 'object', properties: { answer: { type: 'number' } } }, - }]) - expect(assembly.sections.map(section => section.name).indexOf('protected')) - .toBeLessThan(assembly.sections.map(section => section.name).indexOf('after')) - expect(assembly.tools.map(tool => tool.name)).toEqual(['alpha', 'protected', 'zulu']) - }) - - it('makes an owner-final tool\'s canonical absence survive the waterfall', async () => { - const ctx = new Context() - await ctx.plugin(SystemPrompt) - ctx.systemPrompt.tools(() => ({ schemas: [], ownerFinalNames: ['mode-hidden'] })) - ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { - const result = await next() - result.tools.push({ name: 'mode-hidden', description: 'fabricated', parameters: {} }) - return result - }) - - const assembly = await ctx.systemPrompt.assemble() - expect(assembly.tools.some(tool => tool.name === 'mode-hidden')).toBe(false) - }) - }) - it('assembles snapshots so one-step mutations do not leak into future assemblies', async () => { const ctx = new Context() await ctx.plugin(SystemPrompt) diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index f4416a312c..a9411f6cba 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -11,11 +11,11 @@ tools: mode: native # native (default) | code | both ``` -`native` contributes the calling agent's visible end capabilities as wire function definitions. Under `code`, this registry's canonical contribution is the reserved `run_code` transport plus the generated `tools:sdk` prompt section (see [Code Mode](#code-mode)); an assembly listener may still deliberately add unrelated schemas. `both` contributes the visible native definitions, `run_code`, and the SDK section. In non-native modes both infrastructure pieces are owner-final rather than filterable capabilities: restrictions and assembly listeners cannot remove them, a scoped section cannot shadow the globally owner-final `tools:sdk`, and registering, shadowing, or explicitly filtering `run_code` fails loudly. Non-native modes require a loaded `ctx.codeRuntime` with `language: 'typescript'`; a missing or mismatched runtime rejects every prompt assembly with an actionable error, and a `systemPrompt.toolOrder` naming tools the mode no longer contributes rejects the assembly the same way. +`native` contributes the calling agent's visible end capabilities as wire function definitions. Under `code`, this registry contributes the reserved `run_code` transport plus the generated `tools:sdk` prompt section (see [Code Mode](#code-mode)); `both` contributes the visible native definitions and both infrastructure pieces. Restrictions cannot remove `run_code`, and registering, shadowing, or explicitly filtering that reserved name fails loudly. An expert `system-prompt/assemble` listener may replace any prompt or schema contribution; its returned assembly is authoritative, so the listener owns preserving Code Mode when the protocol should remain active. Non-native modes require a loaded `ctx.codeRuntime` with `language: 'typescript'`; a missing or mismatched runtime rejects every prompt assembly with an actionable error, and a `systemPrompt.toolOrder` naming tools the mode no longer contributes rejects the assembly the same way. ### Public API -- `ctx.tools.register(definition: ToolDefinition): () => void` Register a trusted typed same-process definition. The layer is the calling context's scope: a plain plugin context registers globally; an agent's `agent.ctx` registers for that agent alone, shadowing a same-named global tool there. Duplicate names within one layer throw; non-native modes also reject the reserved `run_code` transport name. `timeoutMs`, when present, must be positive and finite. `ownerFinal: true` makes the tool's canonical wire presence or absence survive prompt assembly listeners. Disposed with the calling fiber. +- `ctx.tools.register(definition: ToolDefinition): () => void` Register a trusted typed same-process definition. The layer is the calling context's scope: a plain plugin context registers globally; an agent's `agent.ctx` registers for that agent alone, shadowing a same-named global tool there. Duplicate names within one layer throw; non-native modes also reject the reserved `run_code` transport name. `timeoutMs`, when present, must be positive and finite. Disposed with the calling fiber. - `ctx.tools.restrict(filter: ToolRestriction): () => void` Scoped-only (throws on a plain context): mask the global end-capability surface for the calling agent — `allow` keeps only the listed global tools, `deny` removes them; multiple restrictions intersect; scope-local registrations are merged afterward. The readonly arrays compile once into private sets. Every listed name must exist in the current pre-restriction global registry; scope-local, unknown, and reserved `run_code` names fail loudly. A deny-list admits a later global tool unless it names that tool; an allow-list excludes later names; neither filters a later scope-local registration. `restrict({})` rejects. This is live registration composition, not a parent-derived authority ceiling; see the [agent-scope security non-goal](../../../docs/rfc/implemented/architecture/2026-07-08-agent-scope-contexts.md#security-and-authority-are-explicit-non-goals). - `ctx.tools.get(name: string, scope?: ScopeKey): ToolDefinition | undefined` Resolution as one scope sees it (shadowing applied; a restricted-away global reads as absent) — presenters pass the calling agent so the card matches what executed. - `ctx.tools.schemas(scope?: ScopeKey): ToolSchema[]` Schemas of everything the scope can see (without the `execute` functions). The shipped tools' schemas are catalogued in [docs/tool-catalog.md](../../../docs/tool-catalog.md), generated by booting each tool plugin and harvesting this method (see [the tool-schema-catalog RFC](../../../docs/rfc/implemented/process/2026-07-02-tool-schema-catalog.md)). @@ -28,11 +28,11 @@ tools: ### Live events -The live registry pipeline has three transformable waterfalls followed by the owner-final `tools/result` observation boundary; registry changes are deliberately unfiltered shared-state notifications. Exact signatures, dispatch modes, scope filtering, and failure-containment contracts live in the generated [Cordis event catalog](../../../docs/cordis-catalog/events.md), while the complete ordering is visualized in the generated [tool execution pipeline](../../../docs/tool-execution-pipeline.md). `tools/result` is live and observe-only; the similarly named `tool/result` is the durable session event the agent loop appends afterwards. +The live registry pipeline has three transformable waterfalls followed by the observe-only `tools/result` boundary; registry changes are deliberately unfiltered shared-state notifications. Exact signatures, dispatch modes, scope filtering, and failure-containment contracts live in the generated [Cordis event catalog](../../../docs/cordis-catalog/events.md), while the complete ordering is visualized in the generated [tool execution pipeline](../../../docs/tool-execution-pipeline.md). `tools/result` is live; the similarly named `tool/result` is the durable session event the agent loop appends afterwards. ### Key types -- `ToolDefinition` — `ToolSchema` + `execute(args, exec)`, optional presentation callbacks, cooperative `timeoutMs`, and optional `ownerFinal`. `ownerFinal` is reserved for protocol tools such as `run_code` and structured-output capture whose canonical wire state must survive assembly listeners. +- `ToolDefinition` — `ToolSchema` + `execute(args, exec)`, optional presentation callbacks, and cooperative `timeoutMs`. - `ToolExecutionInput` — the caller-supplied call description: `{ callId, name, arguments, agent?, parent?, signal? }`; callers may pass an enclosing execution's opaque token as `parent` but never choose the new execution's own token. - `ToolExecutionToken` — a fresh branded `Symbol` assigned by the registry. It supports equality correlation only and never crosses a model, log, or worker boundary. - `ToolExecution` — the pipeline-owned call: immutable `{ token, callId, name, arguments, agent?, parent? }` identity plus optional operational `signal`, which an around wrapper may add, replace, remove, and restore. A nested call's `parent` is a `ToolExecutionToken`, not an execution object. @@ -132,11 +132,11 @@ const bash = defineTool({ Under `mode: code` (or `both`) the registry turns the tool surface into a programming API, per the [Code Mode RFC](../../../docs/rfc/implemented/feature/2026-06-15-code-mode.md): the model writes a TypeScript program (the body of an async function) and passes it to the reserved wire transport `run_code`; the program runs in `ctx.codeRuntime` (the [code-execution seam](../../code-runtime/README.md) — the shipped backend is a worker thread) with one async binding per visible end-capability tool (`await tools.bash({...})`), and ONLY what it prints or returns re-enters the model's context. Scope restrictions change those SDK bindings but cannot remove or replace the transport itself. -- **The SDK section** (`tools:sdk`, order 150): a lazy prompt section regenerating, at each assembly, a `declare const tools: {...}` TypeScript declaration of the calling scope's visible end capabilities (exotic names via quoted keys), plus fixed usage instructions. The registry protects this section and the `run_code` wire schema after the assembly waterfall, so Code Mode cannot silently lose either half of its transport. Deterministic — lexicographic tool order, byte-identical text for an unchanged tool set (prefix-cache-friendly). The codegen (`jsonSchemaToTs`, exported) is total: constructs outside the `defineTool` subset degrade to `unknown`, never throw. +- **The SDK section** (`tools:sdk`, order 150): a lazy prompt section regenerating, at each assembly, a `declare const tools: {...}` TypeScript declaration of the calling scope's visible end capabilities (exotic names via quoted keys), plus fixed usage instructions. Deterministic — lexicographic tool order, byte-identical text for an unchanged tool set (prefix-cache-friendly). The codegen (`jsonSchemaToTs`, exported) is total: constructs outside the `defineTool` subset degrade to `unknown`, never throw. - **The dispatch bridge** (`run_code`'s execute): every binding call is JSON-normalized before dispatch (a value that does not survive — `BigInt`, circulars — rejects that one call, so the dispatched form and logged form are the same JSON value by construction), serialized through a per-run queue (even `Promise.all` executes underlying calls one at a time in submission order), given the outer execution's opaque token as `parent`, and run through the complete pre-execute → guards → execute → post-execute → result pipeline. A denial reaches the program as a binding rejection, and each sub-call is logged as a `tool/code-dispatch` session event with deterministic id `:code:`; `deriveMessages()` does not surface that event. Token correlation lets commit-style observers defer an inner success until the final `run_code` result without exposing the live outer execution; ordinary tool side effects are not rolled back. A sub-call's `additionalContext` is deliberately dropped because inserting it inside a running parent call would break tool-call/result adjacency. - **Settlement discipline**: the bridge owns a run-scoped abort that follows the outer signal in and fires when the run settles for any reason, so a budget expiry aborts an in-flight sub-tool instead of orphaning it; the bridge then drains its queue BEFORE returning, so every `tool/code-dispatch` lands inside the open turn. A failed run throws `CodeRunFailedError` (`code: 'CODE_RUN_FAILED'`, message = the failure kind + captured logs), which the pipeline converts to a structured `isError` the model self-corrects from. -The wire collapse is the registry's own contribution (`systemPrompt.tools()` is mode-aware), so the logged `request/header` records it for free. With no deliberate schema-adding assembly listener, `code` assembles exactly `[run_code]`, pinned by tests and the snapshot goldens; contribution-owned finality guarantees that `run_code` and `tools:sdk` remain present, not that unrelated listener additions are erased. Try it: `pnpm run demo:code-mode` ([the coding-agent example's Code Mode overlay](../../../examples/coding-agent/README.md#code-mode)); `pnpm run demo:code-mode acp` serves the same mode over ACP instead of the REPL. +The wire collapse is the registry's own contribution (`systemPrompt.tools()` is mode-aware), so the logged `request/header` records it for free. When no assembly listener changes the registry's prompt or schema contributions, `code` assembles exactly `[run_code]`, pinned by tests and the snapshot goldens. Try it: `pnpm run demo:code-mode` ([the coding-agent example's Code Mode overlay](../../../examples/coding-agent/README.md#code-mode)); `pnpm run demo:code-mode acp` serves the same mode over ACP instead of the REPL. ### What is NOT here (TODO) diff --git a/packages/core/tools/src/code-mode.ts b/packages/core/tools/src/code-mode.ts index 702a403b03..323fbeed2b 100644 --- a/packages/core/tools/src/code-mode.ts +++ b/packages/core/tools/src/code-mode.ts @@ -151,7 +151,6 @@ function asRunCodeMeta(meta: unknown): RunCodeMeta | undefined { export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () => CodeRuntime): ToolDefinition { return defineTool({ name: RUN_CODE_NAME, - ownerFinal: true, description: 'Execute a TypeScript program against the available tools. Write the BODY of an ' + 'async function (erasable syntax only; top-level `await` and `return` work) and ' diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index ab28324503..08edb8d8ae 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -199,12 +199,6 @@ export interface ToolDefinition extends ToolSchema { * cooperative implementation that can reach quiescence when the signal aborts. */ timeoutMs?: number - /** - * Whether this tool name's canonical wire presence or absence survives the - * complete system-prompt assembly waterfall. Reserved for protocol tools - * whose owner must retain the final definition. - */ - readonly ownerFinal?: boolean /** * Optional: how to present the PENDING state of one call in a UI, derived from * the call's `args` (parsed arguments, `unknown` — the tool validates/narrows @@ -457,8 +451,6 @@ interface ToolView { readonly knownNames: ReadonlySet /** Current global names that a scoped restriction may name. */ readonly restrictableNames: ReadonlySet - /** Canonical names whose wire presence or absence is owner-final. */ - readonly ownerFinalNames: ReadonlySet } /** @@ -491,11 +483,12 @@ interface ToolGuardRegistration { * that agent alone, disposed with the scope, and SHADOWING a global tool of * the same name for that agent (most-specific-wins; within one layer a * duplicate name still throws). {@link restrict} masks the global layer per - * scope. One private visibility resolver feeds prompt assembly, - * {@link get}, and {@link execute} — and, under a non-native mode, the SDK - * section and `run_code`'s bindings — so what the model is shown, what a - * presenter renders, what a program can call, and what dispatches can never - * disagree. + * scope. One private visibility resolver feeds the registry's prompt + * contribution, {@link get}, and {@link execute} — and, under a non-native + * mode, the SDK section and `run_code`'s bindings — so those registry-owned + * presentation and dispatch paths agree. An expert `system-prompt/assemble` + * listener may deliberately replace the final wire composition and owns any + * resulting divergence. */ export class ToolRegistry extends Service { static inject = ['systemPrompt'] @@ -533,7 +526,6 @@ export class ToolRegistry extends Service { ctx.systemPrompt.section({ name: 'tools:sdk', order: SDK_SECTION_ORDER, - ownerFinal: true, // A lazy thunk over the live registry, per assembly CONTEXT: // regenerated at each assembly over the CALLING SCOPE's visible set // (scoped tools join, restricted globals vanish — the SDK declares @@ -570,19 +562,17 @@ export class ToolRegistry extends Service { private wireSchemas(scope?: ScopeKey): ToolProviderResult { const view = this.view(scope) const schemas = [...view.visible.values()].map(definition => this.schemaOf(definition, false)) - const ownerFinalNames = [...view.ownerFinalNames] if (this.mode === 'native') { - return { schemas, knownNames: [...view.knownNames], ownerFinalNames } + return { schemas, knownNames: [...view.knownNames] } } this.requireCodeRuntime() if (this.mode === 'code') { return { schemas: schemas.filter(schema => schema.name === RUN_CODE_NAME), knownNames: [RUN_CODE_NAME], - ownerFinalNames, } } - return { schemas, knownNames: [...view.knownNames, RUN_CODE_NAME], ownerFinalNames } + return { schemas, knownNames: [...view.knownNames, RUN_CODE_NAME] } } /** @@ -634,15 +624,6 @@ export class ToolRegistry extends Service { if (this.codeTransport !== undefined && name === RUN_CODE_NAME) { throw new Error(`tool name "${RUN_CODE_NAME}" is reserved for the Code Mode presentation transport and cannot be registered or shadowed`) } - if (scope !== undefined && this.global.get(name)?.ownerFinal === true) { - throw new Error(`tool "${name}" is globally owner-final and cannot be shadowed in an agent scope`) - } - if (scope === undefined && definition.ownerFinal === true) { - const hasScopedShadow = [...this.scoped.values()].some(layer => layer.has(name)) - if (hasScopedShadow) { - throw new Error(`owner-final tool "${name}" cannot be registered while a scoped shadow exists`) - } - } const dispose = this.ctx.effect(function* (this: ToolRegistry) { const layer = scope === undefined ? this.global : this.layerFor(scope) if (layer.has(name)) { @@ -818,7 +799,7 @@ export class ToolRegistry extends Service { * Resolve every registry fact one scope needs in one layer traversal. The * visible map applies global restrictions, scoped shadowing, and the reserved * presentation transport; the other sets retain the pre-restriction facts - * needed by restriction and prompt-order validation and owner-final restore. + * needed by restriction and prompt-order validation. * @param scope - the viewing scope (the agent), or undefined for the global view. * @returns the complete derived view for that scope. */ @@ -827,29 +808,24 @@ export class ToolRegistry extends Service { const visible = new Map() const knownNames = new Set() const restrictableNames = new Set() - const ownerFinalNames = new Set() for (const [name, definition] of this.global) { knownNames.add(name) restrictableNames.add(name) - if (definition.ownerFinal === true) ownerFinalNames.add(name) if (this.admits(scope, name)) visible.set(name, definition) } // Scoped layer second: same-name entries REPLACE (shadow) the global ones, // and scope-local registrations are never part of the global filter above. for (const [name, definition] of layer ?? []) { knownNames.add(name) - if (definition.ownerFinal === true) ownerFinalNames.add(name) visible.set(name, definition) } // Presentation infrastructure is resolved last and outside capability - // filtering. Registration rejects this reserved name, so this set is an - // invariant assertion as well as protection against future layer changes. + // filtering. Registration rejects this reserved name, so the insertion is + // an invariant assertion as well as protection against future layer changes. if (this.codeTransport !== undefined) { visible.set(RUN_CODE_NAME, this.codeTransport) - // createRunCodeTool() owns this internal transport and always marks it owner-final. - ownerFinalNames.add(RUN_CODE_NAME) } - return { visible, knownNames, restrictableNames, ownerFinalNames } + return { visible, knownNames, restrictableNames } } /** @@ -867,8 +843,9 @@ export class ToolRegistry extends Service { /** * The model-facing schemas of everything `scope` can see — exactly the - * fields (`name`, `description`, `parameters`) sent to the model via the - * system-prompt assembly. Constructed EXPLICITLY rather than by stripping + * fields (`name`, `description`, `parameters`) this registry contributes to + * system-prompt assembly before its expert transformation waterfall. + * Constructed EXPLICITLY rather than by stripping * known non-schema members: a `ToolDefinition` also carries `execute` and the * optional `presentCall`/`presentResult` UI callbacks, and those (especially * the functions) must never leak into a model request. An allowlist can't diff --git a/packages/core/tools/src/schema.ts b/packages/core/tools/src/schema.ts index dc33a97299..d3a2d32e18 100644 --- a/packages/core/tools/src/schema.ts +++ b/packages/core/tools/src/schema.ts @@ -302,8 +302,6 @@ export interface DefineToolOptions { * is never sent to the model. */ readonly timeoutMs?: number - /** Make this protocol tool's canonical wire presence or absence owner-final. */ - readonly ownerFinal?: boolean /** * Tool execution function. `args` is typed as {@link InferArgs} — zero * casts needed. Returns either a bare {@link ContentBlock}`[]` (model-facing @@ -380,7 +378,6 @@ export function defineTool(options: DefineToolOptions): description: options.description, parameters: schemaSpecToJsonSchema(options.parameters) as unknown as Record, ...(options.timeoutMs !== undefined ? { timeoutMs: options.timeoutMs } : {}), - ...(options.ownerFinal === true ? { ownerFinal: true } : {}), async execute(args: unknown, exec: ToolExecution): Promise { // Validate the model-generated args before the typed body runs. On // mismatch we throw ToolArgsError; the registry turns it into an diff --git a/packages/core/tools/tests/code-mode.spec.ts b/packages/core/tools/tests/code-mode.spec.ts index 3333b3e1f9..f9d84aadbf 100644 --- a/packages/core/tools/tests/code-mode.spec.ts +++ b/packages/core/tools/tests/code-mode.spec.ts @@ -123,7 +123,7 @@ describe('mode-aware wire contribution', () => { expect(sdk?.text).not.toContain('run_code(args:') }) - it.each(['code', 'both'] as const)('restores Code Mode infrastructure after assembly listeners in mode %s', async (mode) => { + it.each(['code', 'both'] as const)('treats expert assembly output as authoritative in mode %s', async (mode) => { const { ctx, systemPrompt } = await setup({ mode }) registerEcho(ctx) ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { @@ -136,8 +136,20 @@ describe('mode-aware wire contribution', () => { }, { prepend: true }) const assembly = await systemPrompt.assemble() - expect(assembly.sections.some(section => section.name === 'tools:sdk')).toBe(true) - expect(assembly.tools.some(tool => tool.name === RUN_CODE_NAME)).toBe(true) + expect(assembly.sections.some(section => section.name === 'tools:sdk')).toBe(false) + expect(assembly.tools.some(tool => tool.name === RUN_CODE_NAME)).toBe(false) + }) + + it.each(['code', 'both'] as const)('lets one scope shadow the default SDK section in mode %s', async (mode) => { + const { ctx, systemPrompt } = await setup({ mode }) + registerEcho(ctx) + const { scope, agent } = await mintAgentScope(ctx) + scope.ctx.systemPrompt.section({ name: 'tools:sdk', order: 150, text: 'SCOPED SDK' }) + + const scoped = await systemPrompt.assemble({ scope: agent }) + const global = await systemPrompt.assemble() + expect(scoped.sections.find(section => section.name === 'tools:sdk')?.text).toBe('SCOPED SDK') + expect(global.sections.find(section => section.name === 'tools:sdk')?.text).toContain('declare const tools:') }) it("mode 'both' contributes every native schema plus run_code, and the SDK section", async () => { @@ -214,8 +226,6 @@ describe('mode-aware wire contribution', () => { expect(() => scope.ctx.tools.register(impostor)).toThrow(/reserved for the Code Mode presentation transport/) expect(() => ctx.tools.register(impostor)).toThrow(/reserved for the Code Mode presentation transport/) - expect(() => scope.ctx.systemPrompt.section({ name: 'tools:sdk', order: -999, text: 'malicious SDK' })) - .toThrow(/globally owner-final and cannot be shadowed/) expect(() => scope.ctx.tools.restrict({ allow: [RUN_CODE_NAME] })).toThrow(/cannot name reserved Code Mode presentation transport/) expect(() => scope.ctx.tools.restrict({ deny: [RUN_CODE_NAME] })).toThrow(/cannot name reserved Code Mode presentation transport/) scope.ctx.systemPrompt.section({ name: 'scoped-note', order: 149, text: 'safe note' }) diff --git a/packages/core/tools/tests/scoped.spec.ts b/packages/core/tools/tests/scoped.spec.ts index e2445fc555..6599112c2a 100644 --- a/packages/core/tools/tests/scoped.spec.ts +++ b/packages/core/tools/tests/scoped.spec.ts @@ -98,35 +98,6 @@ describe('scoped tool registration', () => { expect(() => scope.ctx.tools.register(tool('y'))).toThrow(/already registered in this scope/) }) - it('rejects either registration order between a global owner-final tool and a scoped shadow', async () => { - const first = await mount() - const { scope: firstScope } = await mintAgentScope(first, 'first') - first.tools.register({ ...tool('reserved'), ownerFinal: true }) - expect(() => firstScope.ctx.tools.register(tool('reserved'))) - .toThrow(/globally owner-final and cannot be shadowed/) - - const second = await mount() - const { scope: secondScope } = await mintAgentScope(second, 'second') - secondScope.ctx.tools.register(tool('reserved')) - expect(() => second.tools.register({ ...tool('reserved'), ownerFinal: true })) - .toThrow(/owner-final tool "reserved" cannot be registered while a scoped shadow exists/) - }) - - it('restores global and scoped owner-final tools removed by assembly middleware', async () => { - const ctx = await mount() - const { scope, key } = await mintAgentScope(ctx, 'owner-final') - ctx.tools.register({ ...tool('required'), ownerFinal: true }) - scope.ctx.tools.register({ ...tool('scoped-required'), ownerFinal: true }) - ctx.on('system-prompt/assemble', async assembly => ({ - ...assembly, - tools: assembly.tools.filter(schema => !schema.name.includes('required')), - })) - - expect((await ctx.systemPrompt.assemble()).tools.map(schema => schema.name)).toContain('required') - expect((await ctx.systemPrompt.assemble({ scope: key })).tools.map(schema => schema.name)) - .toEqual(expect.arrayContaining(['required', 'scoped-required'])) - }) - it('disposing the scope unwinds its registrations and leaves no residue', async () => { const ctx = await mount() const { scope, key } = await mintAgentScope(ctx, 'a') diff --git a/packages/subagent/subagent-inprocess/README.md b/packages/subagent/subagent-inprocess/README.md index 6077a139cd..48fd0a201d 100644 --- a/packages/subagent/subagent-inprocess/README.md +++ b/packages/subagent/subagent-inprocess/README.md @@ -34,7 +34,7 @@ After fulfillment, the caller owns the run. Provider-plugin unload does not revo - A `structured_output` tool registered with the requested schema validates and stages the model's value. - An order-190 system-prompt section tells the child that the tool call is the terminal answer. -- Both contributions use `ownerFinal: true`, so their owners control their final presence after prompt/tool assembly while unrelated contributions remain extensible. +- Both contributions are ordinary child-scoped registrations. An expert `system-prompt/assemble` listener may replace them and therefore owns preserving the structured-output protocol for that child. - A `tools/result` observer commits a staged value only after that execution's authoritative final tool result succeeds, including the enclosing `run_code` result for Code Mode sub-dispatch. - A monotonic tool guard blocks later calls after capture, and `agent/turn-stop` ends the turn after the structured result commits. diff --git a/packages/subagent/subagent-inprocess/src/structured.ts b/packages/subagent/subagent-inprocess/src/structured.ts index 60a2291788..16ecad7bd4 100644 --- a/packages/subagent/subagent-inprocess/src/structured.ts +++ b/packages/subagent/subagent-inprocess/src/structured.ts @@ -16,14 +16,11 @@ * * The child scope's registrations enforce the contract: * - * - `ownerFinal: true` on the capture tool and instruction declares that the - * owning registrations control their final presence. Prompt assembly restores their canonical state - * after EVERY assembly listener. Canonical absence is protected too: pure - * Code Mode keeps `structured_output` in the SDK only and never grows a - * second native wire tool. Code Mode independently declares its SDK section - * and `run_code` transport owner-final. The loop logs the finalized assembly as the - * request header, so the demand is reconstructable log state, never a - * wire-only mutation. + * - The scoped capture tool and instruction are ordinary assembly inputs. The + * loop logs the assembled request header, so the demand is reconstructable + * log state rather than a wire-only mutation. As with every other assembly + * contribution, an expert `system-prompt/assemble` listener that deliberately + * removes or replaces either input owns the resulting composition. * - `agent/turn-stop` (serial, scoped): stop the child's turn once its output * is captured. This terminal checkpoint runs after the ordinary continuation * waterfall and steering folding, so listener order cannot resurrect a @@ -110,7 +107,6 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut childCtx.tools.register({ ...schemaEntry, - ownerFinal: true, execute(args: unknown, exec: ToolExecution): Promise { const violations = validateStructuredValue(schema, args) // ToolArgsError → isError result with INVALID_ARGS: the model retries @@ -128,7 +124,6 @@ export function attachStructuredRuntime(childCtx: Context, schema: StructuredOut name: `tool:${STRUCTURED_OUTPUT_TOOL}`, order: 190, text: STRUCTURED_OUTPUT_INSTRUCTION, - ownerFinal: true, }) // Stop the child's turn once its output is captured. This monotonic serial diff --git a/packages/subagent/subagent-inprocess/tests/structured.spec.ts b/packages/subagent/subagent-inprocess/tests/structured.spec.ts index 636b2b6161..3e23123622 100644 --- a/packages/subagent/subagent-inprocess/tests/structured.spec.ts +++ b/packages/subagent/subagent-inprocess/tests/structured.spec.ts @@ -418,9 +418,9 @@ describe('in-process structured output', () => { it('appends the structured instruction to the child REQUEST\'s system text (base prompt preserved)', async () => { const { ctx, parent, adapter } = await setup([toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 1 })]) // A context-wide section stands in for the deployment persona: the - // instruction must APPEND to whatever the prompt pipeline assembled, not - // replace it (AgentOptions has no prompt field — the instruction is - // per-request wire state added by the final-request listener). + // instruction must APPEND to the other scoped and global sections, not + // replace them (AgentOptions has no prompt field — the instruction is an + // ordinary child-scoped prompt registration). ctx.systemPrompt.section({ name: 'test:persona', order: 10, text: 'You are a counter.' }) const run = await ctx.subagents.start('spawn', structuredRequest(parent)) await run.result @@ -445,22 +445,6 @@ describe('in-process structured output', () => { }) const run = await ctx.subagents.start('spawn', structuredRequest(parent)) - // This listener is registered after the child's protection and prepended. - // Service finalization still restores the stripped transport and prompt - // parts, while removing the fabricated native capture tool. - ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { - const result = await next() - return { - sections: result.sections.filter(section => - section.name !== 'tools:sdk' && section.name !== `tool:${STRUCTURED_OUTPUT_TOOL}`), - tools: [ - ...result.tools.filter(tool => tool.name !== RUN_CODE_NAME), - { name: STRUCTURED_OUTPUT_TOOL, description: 'wrong native duplicate', parameters: {} }, - ], - variables: result.variables, - } - }, { prepend: true }) - const result = await run.result expect(result.structured).toEqual({ answer: 12 }) const request = adapter.requests[0]! @@ -610,66 +594,12 @@ describe('in-process structured output', () => { await runB.dispose() }) - it('protection replaces a conflicting injected schema, not merely ensuring presence', async () => { - const { ctx, parent, adapter } = await setup([ - toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 5 }), - ]) - // A global listener that INJECTS a wrong-schema structured_output entry: - // protection restores the run's own canonical schema. - ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { - const replaced = await next() - return { - sections: replaced.sections, - tools: [ - ...replaced.tools.filter(tool => tool.name !== STRUCTURED_OUTPUT_TOOL), - { name: STRUCTURED_OUTPUT_TOOL, description: 'wrong', parameters: { type: 'object', properties: { bogus: { type: 'string' } } } }, - ], - variables: { ...replaced.variables }, - } - }) - const run = await ctx.subagents.start('spawn', structuredRequest(parent)) - const result = await run.result - expect(result.structured).toEqual({ answer: 5 }) - const entries = adapter.requests[0]!.tools!.filter(tool => tool.name === STRUCTURED_OUTPUT_TOOL) - expect(entries).toHaveLength(1) - expect(entries[0]!.parameters).toEqual(SCHEMA) - await run.dispose() - }) - - it('protection wins against a listener that replaces the assembly object', async () => { - const { ctx, parent, adapter } = await setup([ - toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 5 }), - ]) - // A global (every-assembly) listener that returns a brand-new assembly - // WITHOUT the capture tool or instruction — the composition caveat that - // erases cooperative mutations. Service finalization restores both - // after the complete waterfall. - ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { - const replaced = await next() - return { - sections: replaced.sections.filter(section => section.name !== `tool:${STRUCTURED_OUTPUT_TOOL}`), - tools: replaced.tools.filter(tool => tool.name !== STRUCTURED_OUTPUT_TOOL), - variables: { ...replaced.variables }, - } - }) - const run = await ctx.subagents.start('spawn', structuredRequest(parent)) - const result = await run.result - expect(result.structured).toEqual({ answer: 5 }) - const entry = adapter.requests[0]!.tools!.find(tool => tool.name === STRUCTURED_OUTPUT_TOOL) - expect(entry).toBeDefined() - expect(entry!.parameters).toEqual(SCHEMA) - const system = adapter.requests[0]!.system ?? '' - expect(system).toContain(STRUCTURED_OUTPUT_INSTRUCTION) - await run.dispose() - }) - - it('protection preserves the canonical tool position and section band', async () => { + it('places the capture tool and instruction in their canonical orders', async () => { const { ctx, parent, adapter } = await setup([ toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 7 }), ]) - // A global tool sorting lexicographically AFTER structured_output and a - // global section above the 190 band: protection leaves both exactly - // where the canonical registry ordering put them. + // A global tool sorts lexicographically after structured_output, while a + // global section above the 190 band follows the capture instruction. ctx.tools.register({ name: 'zz_probe', description: 'probe', @@ -690,41 +620,6 @@ describe('in-process structured output', () => { await run.dispose() }) - it('a stripped instruction re-inserts at its band; an added duplicate entry collapses to one', async () => { - const { ctx, parent, adapter } = await setup([ - toolCallResponse('c1', STRUCTURED_OUTPUT_TOOL, { answer: 3 }), - ]) - ctx.systemPrompt.section({ name: 'after-band', order: 200, text: 'AFTER-BAND' }) - // Strip the instruction section entirely AND add a wrong-schema - // duplicate tool entry alongside the registry's own: protection must - // restore the section INTO its band (before the order-200 section, not - // appended after it) and collapse the tools to exactly one entry - // carrying the run's schema. - ctx.on('system-prompt/assemble', async (_assembly, _context, next) => { - const replaced = await next() - return { - sections: replaced.sections.filter(section => section.name !== `tool:${STRUCTURED_OUTPUT_TOOL}`), - tools: [ - ...replaced.tools, - { name: STRUCTURED_OUTPUT_TOOL, description: 'wrong', parameters: { type: 'object', properties: { bogus: { type: 'string' } } } }, - ], - variables: { ...replaced.variables }, - } - }) - const run = await ctx.subagents.start('spawn', structuredRequest(parent)) - const result = await run.result - expect(result.structured).toEqual({ answer: 3 }) - const request = adapter.requests[0]! - const entries = request.tools!.filter(tool => tool.name === STRUCTURED_OUTPUT_TOOL) - expect(entries).toHaveLength(1) - expect(entries[0]!.parameters).toEqual(SCHEMA) - const system = request.system ?? '' - const instructionAt = system.indexOf(STRUCTURED_OUTPUT_INSTRUCTION) - expect(instructionAt).toBeGreaterThanOrEqual(0) - expect(system.indexOf('AFTER-BAND')).toBeGreaterThan(instructionAt) - await run.dispose() - }) - it('a non-structured agent request keeps tools ABSENT when it had none (no tools: [] materialized)', async () => { const { parent, adapter } = await setup([textResponse('plain')]) parent.send([{ type: 'text', text: 'q' }]) diff --git a/scripts/gen-tool-catalog.ts b/scripts/gen-tool-catalog.ts index 3405da6a8b..9e7dfe44bd 100644 --- a/scripts/gen-tool-catalog.ts +++ b/scripts/gen-tool-catalog.ts @@ -140,7 +140,7 @@ const TOOL_PACKAGES: ToolPackage[] = [ toolsConfig: { mode: 'code' }, async mount() {}, note: - 'Owned by the tool registry as a reserved transport outside filterable capability layers under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the registry\'s only canonical wire contribution; the other visible capabilities are declared in a protected TypeScript SDK section, and a program calls them through serialized bindings that re-enter the complete guarded tool pipeline and link each nested execution to this outer result.', + 'Owned by the tool registry as a reserved transport outside filterable capability layers under `mode: code` / `mode: both` (see the Code Mode RFC). Under `code` it is the registry\'s only wire contribution; the other visible capabilities are declared in a generated TypeScript SDK section, and a program calls them through serialized bindings that re-enter the complete guarded tool pipeline and link each nested execution to this outer result.', }, { pkg: '@deepseek-ai/dsh-tool-bash', From 6a8118c96758da720ed5ab85d4697f623edef627 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 13 Jul 2026 13:41:27 +0800 Subject: [PATCH 229/232] docs: align scoped runtime contracts --- docs/architecture.md | 2 +- docs/cordis-catalog/services.md | 2 +- docs/core-data-structures/core.md | 2 +- .../architecture/2026-06-14-session-persistence.md | 2 +- ...-07-05-prompt-variables-and-tool-guidance-ownership.md | 8 ++++---- .../feature/2026-06-21-subagent-capability-seam.md | 2 +- packages/core/agent-loop/README.md | 5 +++-- packages/core/agent/src/types.ts | 6 +++--- packages/core/session/src/index.ts | 3 +-- packages/subagent/subagent-spawn/tests/harness.ts | 7 ++++--- packages/subagent/subagent/src/types.ts | 2 +- packages/subagent/tool-subagent/README.md | 2 +- packages/ui/acp/README.md | 2 +- 13 files changed, 23 insertions(+), 22 deletions(-) diff --git a/docs/architecture.md b/docs/architecture.md index 2012be0946..a1f0cae9a8 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -93,7 +93,7 @@ forever: checkpoint persistence and notify idle/running status ``` -Prompt assembly is single-path: the loop sends `renderPrompt(await assemble(assembleContextFor(agent)))`; the helper couples the explicit agent and scope. Plugins contribute ordered sections, tool schemas, and named variables interpolated as `{{name}}` at render — strictly, so an unknown or valueless reference fails the turn instead of shipping a hole. `dsh-system-prompt` owns the openers — the static `harness:identity` section (order −100) and the deployment's persona (order 0, its `persona` config, shared context-wide) — while the loop registers the `model`/`cwd` variables; prompt-fact ownership is pinned by the [prompt-variables RFC](rfc/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md). +Prompt assembly is single-path: the loop sends `renderPrompt(await assemble(assembleContextFor(agent)))`; the helper couples the explicit agent and scope. Plugins contribute ordered sections, tool schemas, and named variables interpolated as `{{name}}` at render — strictly, so an unknown or valueless reference fails the turn instead of shipping a hole. `dsh-system-prompt` owns the openers — the static `harness:identity` section (order −100) and the deployment's global default persona (order 0, shadowable by a same-named agent-scoped section) — while the loop registers the `model`/`cwd` variables; prompt-fact ownership is pinned by the [prompt-variables RFC](rfc/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md). Post-tool context lands after all tool results so tool-call/result adjacency stays stable. Steering drains between steps; ordinary leftover steering after a turn is re-queued as input. A terminal `agent/turn-stop` is the explicit exception: it runs after ordinary continuation and steering folding, then remains authoritative through turn close and flush so steering from those later listeners is discarded rather than becoming another step or turn; ordinary queued prompts are preserved. diff --git a/docs/cordis-catalog/services.md b/docs/cordis-catalog/services.md index e067708712..cf41cfdd5f 100644 --- a/docs/cordis-catalog/services.md +++ b/docs/cordis-catalog/services.md @@ -218,7 +218,7 @@ list(): Session[] fork(source: SessionForkSource, boundary?: number, childSessionId?: SessionId): Session ``` -Source: [`packages/core/session/src/index.ts:591`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:590`](../../packages/core/session/src/index.ts) ## `ctx.skills` — `SkillService` diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index e25e066a08..757c74f399 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -353,7 +353,7 @@ interface Agent { } ``` -`AgentStatus` is `'idle' | 'running' | 'disposed'`. `AgentId` is a branded string. `AgentOptions` (`model?`) is merge-extensible — plugins add creation options by declaration merging; the persona is NOT an agent option but the `dsh-system-prompt` plugin's `persona` config, shared context-wide. The `agent/*` event taxonomy (lifecycle emits incl. `agent/session-start`, serial `agent/pre-step`/`agent/turn-stop` checkpoints, and the `agent/prompt-submit`/`agent/request`/`agent/session-prefix`/`agent/step-result`/`agent/turn-continuation` waterfalls) is in [architecture.md § Event taxonomy](../architecture.md#event-taxonomy); turn/step boundaries are durable `session/event` records, not `agent/*` emits. +`AgentStatus` is `'idle' | 'running' | 'disposed'`. `AgentId` is a branded string. `AgentOptions` (`model?`) is merge-extensible — plugins add creation options by declaration merging. Persona is not an agent option: the `dsh-system-prompt` config supplies the global default, and an agent-scoped `deployment:persona` section may shadow it. The `agent/*` event taxonomy (lifecycle emits incl. `agent/session-start`, serial `agent/pre-step`/`agent/turn-stop` checkpoints, and the `agent/prompt-submit`/`agent/request`/`agent/session-prefix`/`agent/step-result`/`agent/turn-continuation` waterfalls) is in [architecture.md § Event taxonomy](../architecture.md#event-taxonomy); turn/step boundaries are durable `session/event` records, not `agent/*` emits. ## Interception decisions diff --git a/docs/rfc/implemented/architecture/2026-06-14-session-persistence.md b/docs/rfc/implemented/architecture/2026-06-14-session-persistence.md index 1d3ce8929c..03d8a30b37 100644 --- a/docs/rfc/implemented/architecture/2026-06-14-session-persistence.md +++ b/docs/rfc/implemented/architecture/2026-06-14-session-persistence.md @@ -23,7 +23,7 @@ Key choices recorded here because they are durable, contested, and surprising: - **Append-only; a crashed turn is closed, never truncated.** Committed events — those at or below a flushed `turn/end` — are never rewritten. The loop only flushes at `turn/end`, so a crash can leave a durable log whose final turn never closed: real, fully-written events sit after the last `turn/end`. **A single turn can be huge in a long-horizon task** (many steps, large tool output spanning a long autonomous run), so discarding the interrupted turn would silently destroy a large amount of real work — truncating a turn is wrong. Instead, on reload `load` PRESERVES those events and CLOSES the orphaned turn by durably appending the minimal synthetic boundary events: an error `tool/result` for every `tool-call` the crash left unanswered, then a `step/end` if a step was still open, then a `turn/end` carrying the merge-extensible `{ kind: 'interrupted' }` reason (a marker that records the turn was cut short by a crash, not completed by the model — no loop ever emits it). The synthetic tool results matter for resume correctness: the loop logs the `assistant/message` (carrying the `tool-call` blocks) BEFORE running the tools, so a crash mid-tool leaves calls without results; `deriveMessages()` would then replay a dangling assistant tool-call, which every provider rejects as an invalid transcript on the next request. Answering each orphaned call with an error result keeps the rehydrated history valid. `load` returns the balanced log, so a resumed session is immediately usable. The ONLY thing discarded is a never-fully-written **torn tail fragment** — a final record whose bytes (JSONL) or row were never completely flushed; that fragment is not a valid event and is dropped before the synthetic closers are written. A parse error or `seq` gap in the COMMITTED region (at or before the last real `turn/end`) is genuine corruption and makes the session unloadable. - **File backend canonical, DB backend a proven drop-in.** `SessionEvent` maps 1:1 onto a row `(session_id, seq, type, time, data)` — `append` is INSERT (in a transaction asserting the contiguous-seq contract), `load` is SELECT … ORDER BY seq. `dsh-session-persistence-sqlite` is exactly this: a `SessionPersistence` subclass with no interface change (opencode runs this exact shape on SQLite/WAL), and it passes the same `runPersistenceContract` suite as the JSONL backend — so the contract holds both backends to identical semantics (lazy materialization, interrupted-turn close on load, contiguous-seq), expressed once over file bytes and once over rows. - **Metadata is out-of-log.** Format version, cwd, and lineage are storage concerns, not replayable conversation state, so they live in a `SessionHeader` owned by `dsh-session` and attached to a `Session` via a new readonly `session.header` — never in `SessionEventMap`, never reaching `deriveMessages()`. The alternative (a merge-extensible `session/meta` event as log line 0) was rejected: an in-log event would ride along with a seeded/forked session for free, but metadata is not replayable state, so the explicit out-of-log header seam is the cleaner cost. (The header was originally split into an immutable `SessionHeader` plus a mutable `SessionSummary` whose union was `SessionMeta`; the mutable summary was later removed as dead state — see [Drop the mutable session summary](../simplification/2026-06-19-drop-mutable-session-summary.md).) -- **Resume is an async factory, not a change to synchronous create.** `ctx.agents.resume({ resumeSessionId })` awaits `ctx.sessionPersistence.load`, recreates the live session with the loaded events (so `lastTurnNumber`/`deriveMessages` continue), and starts a fresh agent on the resumed id (NOT `${agentId}-session`). The agent-loop does NOT hard-inject `sessionPersistence` (that would pend non-persistent demos forever); `resume` rejects with a clear error when it is absent. +- **`ctx.agents.create()` and `ctx.agents.resume()` are async factories; resume additionally crosses the persistence boundary.** `ctx.agents.resume({ resumeSessionId })` awaits `ctx.sessionPersistence.load`, recreates the live session with the loaded events (so `lastTurnNumber`/`deriveMessages` continue), and starts a fresh agent on the resumed id (NOT `${agentId}-session`). The agent-loop does NOT hard-inject `sessionPersistence` (that would pend non-persistent demos forever); `resume` rejects with a clear error when it is absent. ## Alternatives considered diff --git a/docs/rfc/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md b/docs/rfc/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md index 53d3e63cdb..0961830c1a 100644 --- a/docs/rfc/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md +++ b/docs/rfc/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md @@ -16,11 +16,11 @@ The assembled system prompt had four defects, all of one family: facts the harne ## Decision -**One principle: every fact in the prompt has exactly one owner.** The model name and workspace are config/session facts → the harness exposes them as variables and the persona references them. Per-tool semantics and when-to-use → the tool's `description`. Cross-call habits a description cannot carry → the tool package's prompt section. Identity and behavior → the deployment's persona, and nothing else. +**One principle: every fact in the prompt has exactly one owner.** The model name and workspace are config/session facts → the harness exposes them as variables and the persona references them. Per-tool semantics and when-to-use → the tool's `description`. Cross-call habits a description cannot carry → the tool package's prompt section. Harness provenance → the static `harness:identity` section. Deployment role and behavior → the deployment's persona. ### Assemble context -`SystemPrompt.assemble(context)` takes an `AssembleContext` — declared EMPTY and merge-extensible in `dsh-system-prompt` (the package stays agnostic of who assembles); `dsh-agent` declaration-merges `agent?: Agent` onto it (a new type-level edge `agent → system-prompt`, no cycle — `tools` already depends on both). The loop passes `{ agent }` each step; section text providers become `string | ((context) => string)` (zero-arg providers stay valid), and the `system-prompt/assemble` waterfall gains the context parameter so a listener can filter or extend per agent. +`SystemPrompt.assemble(context)` takes a merge-extensible `AssembleContext`. `dsh-system-prompt` declares the optional `scope` selector used for scoped routing, while `dsh-agent` declaration-merges the optional typed `agent` field onto it (a type-level edge `agent → system-prompt`, with no runtime dependency cycle). The loop calls `assembleContextFor(agent)` each step so both fields identify the same agent; section text providers may read that context, and the `system-prompt/assemble` waterfall receives it so a listener can filter or extend per agent. ### Prompt variables @@ -30,7 +30,7 @@ Plugins contribute named values via `ctx.systemPrompt.variable(name, provider)`; ### Persona as the order-0 section -`dsh-system-prompt` itself registers the two harness-owned sections (they must survive a swapped loop plugin, so they do NOT live on `dsh-agent-loop`): the static `harness:identity` at order `-100` — every prompt opens by stating the agent is powered by the DeepSeek Harness SDK — and `deployment:persona` at order 0, whose text is the plugin's own `persona` config. The persona is per-DEPLOYMENT, not per-agent: every agent in the context (subagents included) renders the same one, `AgentOptions.systemPrompt` is deleted along with the per-agent forwarding plumbing (the app configs' `systemPrompt` keys become a `persona` key routed to this plugin through `dsh-agent-core`), and the ACP bridge and `dsh-tool-subagent` stop carrying persona configuration entirely. The loop's special-case join is deleted: `fullSystemPrompt ≡ renderPrompt(assembly)`, one ordered pipeline for everything the model sees, and `agent/pre-step` (compaction's token-pressure input) measures exactly the real prompt. Order bands are now convention: harness identity `-100`, persona `0`, tool guidance `100–199`; other negative orders also render before the persona. +`dsh-system-prompt` itself registers the two harness-owned sections (they must survive a swapped loop plugin, so they do NOT live on `dsh-agent-loop`): the static `harness:identity` at order `-100` — every prompt opens by stating the agent is powered by the DeepSeek Harness SDK — and the global default `deployment:persona` at order 0, whose text is the plugin's own `persona` config. `AgentOptions.systemPrompt` and the loop's special-case join are gone: `fullSystemPrompt ≡ renderPrompt(assembly)`, one ordered pipeline for everything the model sees, and `agent/pre-step` (compaction's token-pressure input) measures exactly the real prompt. An agent-scoped section with the same `deployment:persona` name shadows the default for that agent; programmatic setup may register one directly, and the subagent persona feature installs one before publishing an in-process child when the selected provider supports it. Order bands are convention: harness identity `-100`, persona `0`, tool guidance `100–199`; other negative orders also render before the persona. ### Tool guidance ownership @@ -56,7 +56,7 @@ Per-tool semantics and when-to-use live in tool DESCRIPTIONS, which already ship ## Shipped invariants -- `renderPrompt(assemble({ agent }))` for the coding-agent example renders the persona FIRST (with the agent's model name interpolated), then the fs/bash/web guidance sections; the loop has no other prompt-composition path. +- `renderPrompt(await assemble(assembleContextFor(agent)))` for the coding-agent example renders the harness identity, then the persona (with the agent's model name interpolated), then the fs/bash/web guidance sections; the loop has no other prompt-composition path. - The `subagent_fork` schema description says the child inherits the conversation; the `subagent` one says it does not. The tool follows its provider: absent before the backend activates, present after, gone when the backend unloads, re-worded from the fresh provider on reload. - Unknown/valueless/malformed/unbalanced `{{…}}` references throw with the section name in the message; duplicate section, variable, and tool-name registrations all throw. - Snapshot goldens are prompt-independent by construction: llm-replay keys replay on (turn, step) chunk streams and never re-verifies the outgoing request. diff --git a/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md b/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md index c24c6102d9..652eac5522 100644 --- a/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md +++ b/docs/rfc/implemented/feature/2026-06-21-subagent-capability-seam.md @@ -41,7 +41,7 @@ A provider exposes `start(request) → Promise`. Promise fulfillmen ### Two kinds of optional capability, discovered two ways -- **Start-time features** (`outputSchema`, `depthLimit`, `toolFilter`) ride on a static `provider.capabilities` descriptor. The service checks every requested one BEFORE delegating and **rejects loud** (`SubagentError('UNSUPPORTED_CAPABILITY')`) if the provider lacks it — never accepted-then-ignored. They must be checked before a run exists, which is why they cannot be runtime methods. +- **Start-time features** (`outputSchema`, `depthLimit`, `toolFilter`, `persona`) ride on a static `provider.capabilities` descriptor. The service checks every requested one BEFORE delegating and **rejects loud** (`SubagentError('UNSUPPORTED_CAPABILITY')`) if the provider lacks it — never accepted-then-ignored. They must be checked before a run exists, which is why they cannot be runtime methods. - **Runtime features** (steering via `sendMessage`, follow-up via `resume`) are **optional methods** on `SubagentRun`. The method's presence IS the capability, and TypeScript narrowing is the discovery mechanism: a consumer cannot call an absent method without narrowing first, so there is no silent-degradation path and no separate flags object to keep in sync. ### Fork vs. fresh are separate backends, not a flag diff --git a/packages/core/agent-loop/README.md b/packages/core/agent-loop/README.md index 871689008b..6832800d2e 100644 --- a/packages/core/agent-loop/README.md +++ b/packages/core/agent-loop/README.md @@ -40,7 +40,7 @@ interface Config { } ``` -Agents listed in config are auto-created at startup. `cwd` applies only to fresh config-created sessions; `resumeSessionId` keeps the persisted session header. Config agents have no per-agent persona field: they use `dsh-system-prompt`'s deployment default, while programmatic factory callers can register an agent-scoped `deployment:persona` shadow in `setup`. The plugin registers the built-in `model`/`cwd` prompt variables on `ctx.systemPrompt`, resolved per step from the `assemble({ agent })` context — runtime facts of the agents THIS loop drives, unlike the `harness:identity` and default `deployment:persona` sections, which live on `dsh-system-prompt` so they survive a swapped loop plugin. +Agents listed in config are auto-created at startup. `cwd` applies only to fresh config-created sessions; `resumeSessionId` keeps the persisted session header. Config agents have no per-agent persona field: they use `dsh-system-prompt`'s deployment default, while programmatic factory callers can register an agent-scoped `deployment:persona` shadow in `setup`. The plugin registers the built-in `model`/`cwd` prompt variables on `ctx.systemPrompt`, resolved per step from `assembleContextFor(agent)` — the helper couples the typed agent with its matching scope selector. These are runtime facts of the agents THIS loop drives, unlike the `harness:identity` and default `deployment:persona` sections, which live on `dsh-system-prompt` so they survive a swapped loop plugin. ### Exported concrete class @@ -63,7 +63,8 @@ forever: if every prompt blocked: 'turn/end'(rejected), no step ⟵ zero-step turn STEP loop: drain steering - assembly = systemPrompt.assemble({agent}) ⟵ renderPrompt(assembly) IS the full prompt + assembly = await systemPrompt.assemble(assembleContextFor(agent)) + ⟵ renderPrompt(assembly) IS the full prompt prefix ??= waterfall agent/session-prefix ⟵ once per instance (first step): frozen session prefix; on the header, never history await serial agent/pre-step(…, prefix) ⟵ surface mutation (compaction) outside the step; diff --git a/packages/core/agent/src/types.ts b/packages/core/agent/src/types.ts index f85cf3db2c..7a046dcc82 100644 --- a/packages/core/agent/src/types.ts +++ b/packages/core/agent/src/types.ts @@ -82,9 +82,9 @@ declare module '@deepseek-ai/dsh-system-prompt' { } /** - * Options an agent is created with. The persona is NOT here — it is the - * deployment's `persona` config on the dsh-system-prompt plugin, shared by - * every agent in the context. + * Options an agent is created with. The persona is NOT here: the + * dsh-system-prompt config supplies the global default, and a scoped + * `deployment:persona` section may override it for one agent. * Merge-extensible: plugins declare extra fields via declaration merging. */ export interface AgentOptions { diff --git a/packages/core/session/src/index.ts b/packages/core/session/src/index.ts index 6ce38bbffe..a6dff5cd27 100644 --- a/packages/core/session/src/index.ts +++ b/packages/core/session/src/index.ts @@ -363,8 +363,7 @@ export class Session { * @returns the logged event — its assigned `seq`/`time` plus the SNAPSHOT of * `data` that entered the log, so reading `event.data` back sees the logged * value, never the caller's still-mutable input. - * @throws if `type` is not a string, or if `data` or surface metadata is not - * losslessly JSON-serializable + * @throws if `data` or surface metadata is not losslessly JSON-serializable * (BigInt, function, symbol, undefined, negative zero, non-finite number, * circular reference, sparse array, or an exotic object such as * Map/Set/Date/class instance). One recursive pass reads, validates, and diff --git a/packages/subagent/subagent-spawn/tests/harness.ts b/packages/subagent/subagent-spawn/tests/harness.ts index b3e9d4ec24..e4ee2e6ab7 100644 --- a/packages/subagent/subagent-spawn/tests/harness.ts +++ b/packages/subagent/subagent-spawn/tests/harness.ts @@ -23,9 +23,10 @@ export async function spawnHarness(workdir: string): Promise { const ctx = new Context() await ctx.plugin(LlmService) await ctx.plugin(SessionStore) - // The deployment persona is context-wide (parent AND spawned children - // render it), so it stays neutral for both roles; the delegation nudge - // lives in the e2e's user prompt and the subagent tool's own description. + // This harness installs only the global default persona, so both parent and + // spawned children render it. It stays neutral for both roles; the + // delegation nudge lives in the e2e's user prompt and the subagent tool's + // own description. await ctx.plugin(SystemPrompt, { persona: 'You are a coding agent. Report only when the requested work is done.' }) await ctx.plugin(ToolRegistry) await ctx.plugin(AgentRegistry) diff --git a/packages/subagent/subagent/src/types.ts b/packages/subagent/subagent/src/types.ts index f08d8a0622..3bdc78569a 100644 --- a/packages/subagent/subagent/src/types.ts +++ b/packages/subagent/subagent/src/types.ts @@ -57,7 +57,7 @@ export interface SubagentStartRequest { * afterward. */ readonly signal: AbortSignal - /** Per-child agent options (model, system prompt). */ + /** Per-child agent options (model and plugin-defined extension fields). */ readonly agentOptions?: AgentOptions /** * Optional structured-output schema — an object-rooted JSON Schema within the diff --git a/packages/subagent/tool-subagent/README.md b/packages/subagent/tool-subagent/README.md index fbd01a0cb2..c234d5832b 100644 --- a/packages/subagent/tool-subagent/README.md +++ b/packages/subagent/tool-subagent/README.md @@ -10,7 +10,7 @@ The description is derived from `provider.inheritsParentContext`: spawn and ACP ## Lifecycle -`execute` passes the tool execution's abort signal directly as the required `SubagentStartRequest.signal`, awaits `ctx.subagents.start(...)`, then awaits `run.result` inside a `try/finally` that always calls `run.dispose()`. The same signal therefore covers startup and live execution, while disposal guarantees quiescence on success, failure, and abort. +`execute` passes the tool execution's abort signal when present, otherwise supplies an inert signal to satisfy the required `SubagentStartRequest.signal`. It awaits `ctx.subagents.start(...)`, then awaits `run.result` inside a `try/finally` that always calls `run.dispose()`. The selected signal therefore covers startup and live execution, while disposal guarantees quiescence on success, failure, and abort. A non-`completed` stop reason becomes an `isError` tool result; partial child output is never reported as success. The current tool blocks the parent turn until collection finishes; background and polling modes are deferred. diff --git a/packages/ui/acp/README.md b/packages/ui/acp/README.md index efd5e5247a..f4947e5d25 100644 --- a/packages/ui/acp/README.md +++ b/packages/ui/acp/README.md @@ -16,7 +16,7 @@ It is a **client-driver / UI plugin**, the structured analogue of the readline ` |---|---|---| | `model` | — | Model name for created agents (must have a registered adapter). | -(No persona key: the deployment persona is `dsh-system-prompt`'s own `persona` config — a context-wide section, so ACP-created agents render it without the bridge carrying prompt text.) +(No persona key: `dsh-system-prompt`'s own `persona` config supplies the global default section, so ACP-created agents render it without the bridge carrying prompt text. An agent-scoped same-name section may still shadow that default.) The `initialize` handshake reports a fixed server identity (`agentInfo: { name: 'deepseek-harness-acp', version: '0.0.1' }`) — branding is a literal at the `initialize` site, not config. From 90adf1003f39f92381819c27db2a3f56ca615ed0 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 13 Jul 2026 15:06:54 +0800 Subject: [PATCH 230/232] docs: refine simplification audit after master merge --- docs/config-catalog.md | 2 +- docs/rfc/INDEX.md | 2 +- .../2026-06-20-unify-agent-and-session-id.md | 2 +- ...026-07-04-prune-dead-core-spine-surface.md | 23 ++++++++++--- ...12-collapse-workflow-to-foreground-core.md | 9 ++++-- ...6-07-12-prune-unconsumed-registry-modes.md | 32 ------------------- ...-12-prune-unused-skill-registry-surface.md | 27 ++++++++++++++++ ...-12-simplify-session-log-representation.md | 10 +++--- .../coding-agent/tests/keyless-smoke.e2e.ts | 2 ++ packages/core/agent/src/index.ts | 2 ++ packages/guard/repeat-tool-guard/src/index.ts | 2 ++ packages/ui/acp/src/index.ts | 9 ++++-- packages/workflow/tool-workflow/README.md | 4 +-- 13 files changed, 74 insertions(+), 52 deletions(-) delete mode 100644 docs/rfc/proposed/simplification/2026-07-12-prune-unconsumed-registry-modes.md create mode 100644 docs/rfc/proposed/simplification/2026-07-12-prune-unused-skill-registry-surface.md diff --git a/docs/config-catalog.md b/docs/config-catalog.md index e4e7ad8d3f..93f8e311f9 100644 --- a/docs/config-catalog.md +++ b/docs/config-catalog.md @@ -31,7 +31,7 @@ export interface AcpConfig { Depends on: `Stream` (`@agentclientprotocol/sdk`) -Source: [`packages/ui/acp/src/index.ts:248`](../packages/ui/acp/src/index.ts) +Source: [`packages/ui/acp/src/index.ts:250`](../packages/ui/acp/src/index.ts) ## `@deepseek-ai/dsh-acp-agent` diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index e4a2320f76..21ee29a58d 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -19,7 +19,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [Prune dead public and result surface](proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md) | 2026-07-04 | | [Collapse workflows to the exercised foreground core](proposed/simplification/2026-07-12-collapse-workflow-to-foreground-core.md) | 2026-07-12 | | [Drop unconsumed registry events](proposed/simplification/2026-07-12-drop-unconsumed-registry-events.md) | 2026-07-12 | -| [Prune unconsumed registry modes](proposed/simplification/2026-07-12-prune-unconsumed-registry-modes.md) | 2026-07-12 | +| [Prune unused skill registry surface](proposed/simplification/2026-07-12-prune-unused-skill-registry-surface.md) | 2026-07-12 | | [Prune unused web seam fields](proposed/simplification/2026-07-12-prune-unused-web-seam-fields.md) | 2026-07-12 | | [Simplify session-log representation](proposed/simplification/2026-07-12-simplify-session-log-representation.md) | 2026-07-12 | diff --git a/docs/rfc/proposed/simplification/2026-06-20-unify-agent-and-session-id.md b/docs/rfc/proposed/simplification/2026-06-20-unify-agent-and-session-id.md index aaad0877c7..b3670dd9a1 100644 --- a/docs/rfc/proposed/simplification/2026-06-20-unify-agent-and-session-id.md +++ b/docs/rfc/proposed/simplification/2026-06-20-unify-agent-and-session-id.md @@ -10,7 +10,7 @@ ACP already uses the same value for both identities. Where they diverge, stdio k The [agent-scope runtime](../../implemented/architecture/2026-07-12-agent-scope-runtime-design.md) has no reservation side tables: create and resume use one `AgentCreationTransaction`, and agent/session entries use the same final-entry collision rule. Separate ids therefore do not duplicate asynchronous liveness, rollback, or quiescence machinery. Identity unification is only an API and representation simplification: it deletes one caller-supplied id, one UUID per in-process child, and the remaining translation paths without changing the transaction lifecycle. -Session itself repeats the same fact as `Session.id` and `Session.header.id`. Valid store paths construct them equal, but the constructor does not enforce equality and production consumers choose between the two. The duplicate creates an impossible-but-representable mismatch inside the object that owns session identity. +Session itself repeats the same fact as `Session.id` and `Session.header.id`. Construction rejects a header whose id differs, so the aliases are constrained equal; the durable boundary must nevertheless validate the duplicate, and production consumers choose between its two homes. ## Proposal diff --git a/docs/rfc/proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md b/docs/rfc/proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md index 58cc6d788c..cca7c57b34 100644 --- a/docs/rfc/proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md +++ b/docs/rfc/proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md @@ -6,7 +6,7 @@ Status: proposed Several package-root exports, result fields, and convenience methods have no production consumer. They survive because tests import internals through public entry points or because a type anticipated a caller that never arrived. Each item is small in isolation, but together they enlarge the SDK contract, generated catalogs, documentation, and regression matrix without enabling a shipped path. -The production corpus is `packages/*/*/src`, example sources/config, and runtime scripts; tests, package READMEs, generated catalogs, and RFC prose are evidence of publication but not consumers. Exact-symbol searches produce the following inventory: +The production corpus is `packages/*/*/src`, example sources/config, and runtime scripts. Tests, package READMEs, and RFC prose are evidence of publication but not fixed callers. `cordis_inspect` makes `packages/cordis/tool-cordis/src/api-catalog.ts` model-visible, and `cordis_mount` can invoke injected services through guarded real-service proxies, so catalogued service methods and returned shapes are a genuine dynamic product surface. The table therefore distinguishes absence of a fixed repository caller from unreachability: rows touching catalogued vocabulary intentionally contract what model-written mounts can discover and call, while package-root implementation helpers are not reached through that service façade. Exact-symbol searches produce the following inventory: | Surface | Production evidence | Simplification | | --- | --- | --- | @@ -15,17 +15,28 @@ The production corpus is `packages/*/*/src`, example sources/config, and runtime | `ReactLoopAgent` root export | Outside-package named imports are tests; production programs against `Agent` and creates/resumes through `ctx.agents`. | Return/interface-type `Agent` and make the concrete loop class package-internal; keep the deliberate synchronous config-only `AgentLoop.create()` path. | | `workflow-workerthread` protocol/runtime/session re-exports and named `WorkerWorkflowEngine` | Every package-name consumer uses the default engine; the workflow RFC already defines the worker wire protocol as private. | Keep the default plugin class/config contract; drop the duplicate named class export and keep protocol modules source-private. | | `code-runtime-worker` protocol/bootstrap re-exports | Outside-package production/e2e consumers use `WorkerCodeRuntime` and config, not `BootstrapPort`, `PatchableStream`, or worker message/boot types. | Keep the runtime class/config contract and make its wire/bootstrap vocabulary source-private. | +| ACP translation/presenter root exports | `agentOptions`, `streamSessionEventUpdate`, `todosToPlan`, `ToolPresenter`, `nullToolPresenter`, and `TerminalRendering` have only same-file or ACP-test consumers; the sole outside-package production consumer mounts the plugin namespace. | Keep `name`, `inject`, `Config`, `AcpConfig`, and `apply`; make translation/presentation helpers source-private and test them in-package. | | `providerWording` and `completedTurnPrefix` root exports | Each has one same-package production caller; only the balanced-prefix helper has a same-package white-box test. | Make them source-private and test provider behavior. | | `depthOf`, `SubagentDepthError`, `SENSITIVE_ENV_PATTERN`, `waitForExit`, and `exitsWithin` root exports | Production subagent backends consume the in-process runner and subprocess construction/disposal helpers, not these enforcement/test internals. | Keep depth/environment/exit behavior but make the helpers and error/regex source-private; test through spawn and disposal. | -| `PersistenceCoordinator.inits`, backend `inits` accessors, `seedCoversPrefix`, and `assertSerializable` | The accessors exist for white-box tests; the helpers have no outside production importer. | Observe initialization through `session/flush` and internalize the helpers. Keep both backends, `SessionHeader`, and SQLite's version contract. | -| `LlmService.models()` | Tests/docs only; production resolves a configured adapter directly. | Delete the convenience while keeping both LLM adapters. | +| `PersistenceCoordinator.inits`, backend `inits` accessors, `seedCoversPrefix`, and `assertSerializable` | The accessors exist for white-box tests; `seedCoversPrefix` has no outside production importer; `assertSerializable` has no production caller and duplicates the coordinator append boundary's lossless snapshot. | Observe initialization through `session/flush`, make `seedCoversPrefix` source-private, and delete `assertSerializable`. Keep both backends, `SessionHeader`, and SQLite's version contract. | | `LlmError.status` and replay status | Adapters/replay populate it, but production branches on stable error code/message and never reads raw status. | Remove the unread field and replay plumbing while preserving error classification. | | `BlockAssembler.push()` return value | Both production callers ignore the returned completed block. | Return `void`; keep the deliberately public `blocks()`/`message()` contract. | -| `compactRegion`'s separate `session` argument | The sole production caller passes the same object already present as `agent.session`; the API permits an incoherent pair. | Use `agent.session` as the one source of truth. | +| `compactRegion`'s separate `session` argument | The fixed caller passes the same object already present as `agent.session`; the model-visible mount API can also call the method, but accepting two identities permits a mounted plugin to provide an incoherent pair. | Keep the manual-region seam while deliberately narrowing it to `agent.session` as the one source of truth. | | `CompactionResult.startSeq`, `summarySeq`, `endSeq`, and `summary` | The production consumer reads only shadowed range/seq/token accounting; the durable log owns summary and event identity. | Remove the four result echoes while keeping both shared transcript renderers. | | `BasicCompactService` estimation/summarization visibility | No outside production caller invokes the five methods; the implemented RFC names only `estimateContentTokens()` and `summarize()` as subclass hooks. | Make those two `protected` and the three orchestration-only estimators private. | | `CodeLogEntry.source`/`level` and `RunCodeMeta.dispatches` | Every production consumer maps logs to text; no presenter/model path reads the other fields or the persisted dispatch count. | Make code-runtime logs strings (or text-only entries) and remove result-meta dispatch plumbing; keep the local counter that mints deterministic dispatch ids. | | `ToolNotFoundError.toolName`, `SystemPrompt.config`, and `BashTask.command` | Each stored public value has no production reader. | Drop the unread field while retaining error messages, resolved configuration behavior, and task lifecycle. | +| Backend package-root implementation helpers | The exact inventory below is called only through relative same-package imports. Production namespace imports mount the retained plugin contract without reading these properties; named root consumers are tests. | Retain each adapter/provider/service and its config/error contract; stop exporting the listed helper functions/constants at package roots. | +| Consumer package-root implementation helpers | The exact inventory below has only same-package production callers. Production namespace imports mount plugin contracts without reading helper properties; named root consumers are tests. | Retain plugin contracts and stable error codes; move tests to package-local modules or public behavior and stop exporting the listed helpers at package roots. | + +### Grouped helper-export inventory + +- `dsh-llm-deepseek`: `httpErrorCode`, `serializeMessages`, `serializeRequest`, `DONE`, `parseSse`, `mapFinishReason`, `mapUsage`, and `translate`; `dsh-llm-pi-ai`: `buildModel`, `mapStopReason`, `mapUsage`, `toPiContext`, and `toStreamChunks`. +- `dsh-bash-local`: `DEFAULT_GRACE_MS`, `ENV_OVERRIDES`, `killGroup`, `OutputCollector`, and `runBash`; `dsh-bash-sandbox`: `shellQuote`, `classifyDenial`, and `classifyRunnerFailure`; `dsh-sandbox-local`: `bwrapProfileArgs`, `landlockProfileArgs`, and `seatbeltProfileArgs`. The public mutable test-injection fields and their types are outside this proposal. +- `dsh-fs-local`: `applyLiteralEdit`, `listDirectory`, `probe`, `readForEdit`, `readTextForDiff`, `readWholeText`, `resolveLocalTarget`, `restoreLineEndings`, `streamWholeText`, and `writeFileAtomic`. +- `dsh-web-fetch-local`: `classifyContentType`, `decoderForCharset`, `isSameOrigin`, `parseCharset`, and `validateFetchUrl`; `dsh-web-search-exa`: `mapExaResponse` and `mapExaResult`; `dsh-web-search-deepseek`: `citationSnippets` and `mapAnthropicResponse`; `dsh-web-search-perplexity`: `mapPerplexityResponse` and `mapPerplexityResult`. +- `dsh-tool-fs`: `READ_LIMIT`, `STREAM_MIN_SIZE`, `READ_MAX_BYTES`, `READ_MAX_LINE_LENGTH`, `DIFF_CONTEXT`, `applyReadTool`, `parseReadArgs`, `applyWriteTool`, `formatWriteOutput`, `parseWriteArgs`, `applyEditTool`, `formatEditOutput`, `parseEditArgs`, `buildWindow`, `formatReadOutput`, `computeHunkDiffs`, and `diffsFromMeta`. +- `dsh-tool-web`: `WEB_SEARCH_MAX_RESULTS`, `applyWebSearchTool`, `formatSearchOutput`, `parseSearchArgs`, `presentSearchCall`, `applyWebFetchTool`, `formatFetchOutput`, `parseFetchArgs`, `presentFetchCall`, `renderBody`, and `htmlToMarkdown`; `dsh-timeout-policy`: `toolTimeoutResult`; `dsh-compact-basic`: `resolveConfig`; `dsh-tool-bash`: `renderResult`. ## Proposal @@ -35,6 +46,8 @@ Remove or demote every row as one bounded coordinated public-surface cleanup. Up **Keep test conveniences and self-contained results public.** Public helpers can make white-box tests convenient, self-contained result fields can look ergonomic, and future embedders might want the concrete loop or enumeration methods. Those benefits are hypothetical; today they make every implementation and document explain states that no shipped caller can observe. A real consumer can introduce the smallest contract it needs, with its ownership and failure semantics known. +**Keep every catalogued member for model-written mounts.** The self-referential toolset is a real generic consumer route, not generated-doc noise. Its value comes from an accurate, composable service surface, however, not from preserving duplicate fields or incoherent argument pairs indefinitely; each catalogued contraction above removes a fact available elsewhere on the same execution, agent, or result and updates the API reference in the same change. + ## Acceptance criteria - Exact-symbol searches show no removed surface outside this RFC and any implemented-RFC amendments. @@ -44,4 +57,4 @@ Remove or demote every row as one bounded coordinated public-surface cleanup. Up ## Risks -Most removals are compile-visible but runtime-neutral. The compaction argument cleanup deliberately forbids a session/context mismatch that no caller uses; the remaining changes can require external pre-release embedders to import less or adjust result shapes. The repository is unreleased, so carrying unsupported surface is the larger foundation cost. +Most removals are compile-visible but runtime-neutral. The compaction argument cleanup deliberately forbids a session/context mismatch while retaining the manual-region seam. External pre-release embedders and existing model-written mounts may import fewer helpers, pass fewer arguments, or receive narrower result shapes; this is an intentional product-surface contraction, not merely generated-catalog cleanup. The repository is unreleased, so carrying unsupported surface is the larger foundation cost. diff --git a/docs/rfc/proposed/simplification/2026-07-12-collapse-workflow-to-foreground-core.md b/docs/rfc/proposed/simplification/2026-07-12-collapse-workflow-to-foreground-core.md index 2540d36b91..d112aa2a3f 100644 --- a/docs/rfc/proposed/simplification/2026-07-12-collapse-workflow-to-foreground-core.md +++ b/docs/rfc/proposed/simplification/2026-07-12-collapse-workflow-to-foreground-core.md @@ -8,11 +8,15 @@ The workflow capability executes foreground JavaScript that composes subagents, The progress vocabulary is not merely unused; it cannot serve its only named future owner without redesign. `WorkflowRunInfo` contains `{id, meta}` but no parent agent, session, or tool-call identity, while the model-facing tool never exposes the run id. A global ACP listener could not route an event to the correct client session. `meta.phases` is never consulted, `phase(title)` does not validate against it, phase `detail`/`model` and agent `label`/`phase` feed only events, and `whenToUse` is validated and copied but never rendered or selected. `phase()` and `log()` still cross the worker boundary despite having no receiver. +The live handle repeats event-era data after those observers disappear. `WorkflowRun.id` has no non-event consumer, while the tool reads `run.meta.name` only to render a value it already owns as `args.meta.name`; neither belongs on the execution/cancellation handle. + +Cancellation also has two public channels for one synchronous start. `WorkflowStartRequest.signal` is passed to the worker host, while the sole production caller separately bridges the same signal to `WorkflowRun.cancel()`. Because `start()` returns the run before control can yield, there is no readiness window that requires request-time cancellation; the duplicate signal adds host listener/disarm state without closing a race. + `WorkflowError.fatal` is the same speculative branch in miniature: every production construction is fatal, `fatal: false` exists only in tests, and combinators already distinguish workflow failures with `instanceof`. ## Proposal -Keep the exercised core: `agent(prompt, { schema, model })`, `parallel`, `pipeline`, `args`, concurrency/agent caps, cancellation, bounded disposal, structured results, worker isolation, and foreground tool collection. Remove all `workflow/*` events and their event-only info/outcome types; remove `phase()`, `log()`, agent `label`/`phase`, phase declarations, `whenToUse`, and their worker messages/host observers; collapse workflow metadata to the name the tool actually uses; remove event-only run ids/meta snapshots and the synthesized agent-end ledger. Make `WorkflowError` one fatal error class without a boolean mode or `isFatalWorkflowError()` helper. +Keep the exercised core: `agent(prompt, { schema, model })`, `parallel`, `pipeline`, `args`, concurrency/agent caps, cancellation, bounded disposal, structured results, worker isolation, and foreground tool collection. Remove all `workflow/*` events and their event-only info/outcome types; remove `phase()`, `log()`, agent `label`/`phase`, phase declarations, `whenToUse`, and their worker messages/host observers; collapse workflow metadata to the name the tool actually uses; remove event-only run ids/meta snapshots and the synthesized agent-end ledger. Shrink `WorkflowRun` to `result`, `cancel()`, and `dispose()`; the tool renders the request-owned name. Remove `WorkflowStartRequest.signal` and the worker host's input-signal listener/disarm state, retaining the caller-owned bridge from its abort signal to `run.cancel()`. Make `WorkflowError` one fatal error class without a boolean mode or `isFatalWorkflowError()` helper. Amend the implemented dynamic-workflow RFC and update the seam/tool/worker READMEs, tool schema, generated catalogs and package graph, worker type-equivalence records, unit tests, and workflow snapshot/header fixtures. Progress UI work, if commissioned, starts from a correlation contract that names the parent agent/session/tool call instead of reviving this protocol unchanged. @@ -24,9 +28,10 @@ Amend the implemented dynamic-workflow RFC and update the seam/tool/worker READM - The workflow public seam contains only execution, cancellation, result, and disposal contracts with a production consumer. - No workflow event, phase/log protocol message, run-id generator, progress-only metadata, host pairing ledger, or fatal-mode branch remains. +- The run handle has no id/meta echoes, and cancellation has one holder-owned channel after synchronous `start()` returns. - Parallel/pipeline behavior, caps, cancellation quiescence, worker containment, structured output, and the model-facing workflow scenarios retain coverage. - Typecheck, coverage, snapshots, doc-sync, module-graph verification, build, and hygiene pass. ## Risks -This is a compile-visible contraction of the workflow DSL and event taxonomy. Existing unshipped scripts that use `phase`, `log`, labels, or descriptive metadata must shrink, and a future observer must add a better-correlated seam. The execution semantics that make workflows useful do not change. +This is a compile-visible contraction of the workflow DSL, event taxonomy, handle, and start request. Existing workflow calls that supply descriptive metadata, and scripts that use `phase`, `log`, or labels, must shrink; programmatic callers bridge their own abort source to the returned handle; and a future observer must add a better-correlated seam. The execution semantics that make workflows useful do not change. diff --git a/docs/rfc/proposed/simplification/2026-07-12-prune-unconsumed-registry-modes.md b/docs/rfc/proposed/simplification/2026-07-12-prune-unconsumed-registry-modes.md deleted file mode 100644 index c85af20f43..0000000000 --- a/docs/rfc/proposed/simplification/2026-07-12-prune-unconsumed-registry-modes.md +++ /dev/null @@ -1,32 +0,0 @@ -# RFC: Prune unconsumed registry modes - -Status: proposed - -## Problem - -Two registries implement modes that no production registration populates. - -The skill service's embedded-runtime subsystem has zero production caller of `ctx.skills.register()`. It adds a reserved `runtime` provider name, a runtime map/rank/source, duplicate policy, a second revision in cache keys, normalization, disposers, and tests alongside the provider seam every shipped skill already uses. `SkillSummary.whenToUse` and candidate/definition `path` are parsed and copied but never read by a production consumer: the model catalog renders name/description, resource loading uses `resourceBase`, and providers own their locator. The deliberately open `metadata` extension point stays. - -`SystemPrompt` supports scope-local tool and variable providers, but every production `systemPrompt.tools()` and `systemPrompt.variable()` registration is global. Scoped assembly executes the merge path each step but finds no scoped tool/variable contribution. Scoped sections are live and stay. Supporting empty scope-local tool/variable layers adds maps plus merge/shadow/cleanup branches for combinations the product never constructs. - -## Proposal - -Remove `SkillService.register()`, `SkillRegistration`, the runtime pseudo-provider and reserved-name rules, runtime revisions/cache branches, and runtime-only source/rank normalization. Tests that need an embedded skill register a small real provider. Retain `providerRevision` as the in-flight discovery epoch, but key completed catalogs by cwd alone: every provider mutation synchronously clears the cache, and the post-await revision comparison already prevents inserting stale work. Remove `whenToUse`, `SkillCandidate.path`, and `SkillDefinition.path` from the skill contract and local-provider copies while retaining provider locator/root paths; retain `metadata`, `disableModelInvocation`, `source`, `provider`, `locator`, and `resourceBase` as either deliberate extension vocabulary or production-consumed fields. - -Keep system-prompt sections scoped, but make tool-schema and variable providers global-only and delete their scoped maps/merge logic. Fail loud if a caller attempts these unsupported scope/mode combinations instead of silently widening them. Keep both global and scoped tool guards: the interception design deliberately defines them as monotonic policy APIs. Amend the skill-system and agent-scope RFCs, READMEs, JSDoc, catalogs, and tests. - -## Alternatives considered - -**Keep all registry modes for embedders.** Runtime skill registration is convenient, and scoped variables/tool-schema fragments could support per-agent prompt customization. Neither has a shipped owner. A real embedded skill can be a provider; per-agent executable tools already belong in `agent.ctx.tools`; per-agent prompt facts can use scoped sections or context-aware global providers. - -## Acceptance criteria - -- Skill collection has one provider-backed path, a cwd-only completed-cache key, and a revision epoch only for in-flight invalidation; retained skill fields have a production reader or a recorded deliberate extension contract. -- System-prompt tools/variables have one global path, while sections retain their scoped behavior. -- Global and scoped tool guards plus structured-output commit behavior in native and Code Mode remain covered. -- Typecheck, coverage, snapshots, doc-sync, module-graph verification, build, and hygiene pass. - -## Risks - -These are compile-visible contractions of two pre-release registries. The fail-loud rule must distinguish an unsupported scoped registration from an ordinary global registration without disturbing Cordis effect cleanup, and skill-local frontmatter parsing must continue to preserve and validate the supported metadata schema. diff --git a/docs/rfc/proposed/simplification/2026-07-12-prune-unused-skill-registry-surface.md b/docs/rfc/proposed/simplification/2026-07-12-prune-unused-skill-registry-surface.md new file mode 100644 index 0000000000..1df837e026 --- /dev/null +++ b/docs/rfc/proposed/simplification/2026-07-12-prune-unused-skill-registry-surface.md @@ -0,0 +1,27 @@ +# RFC: Prune unused skill registry surface + +Status: proposed + +## Problem + +The skill service's embedded-runtime subsystem has zero production caller of `ctx.skills.register()`. It adds a reserved `runtime` provider name, a runtime map/rank/source, duplicate policy, a second revision in cache keys, normalization, disposers, and tests alongside the provider seam every shipped skill already uses. `SkillSummary.whenToUse` and candidate/definition `path` are parsed and copied but never read by a production consumer: the model catalog renders name/description, resource loading uses `resourceBase`, and providers own their locator. The deliberately open `metadata` extension point stays. + +## Proposal + +Remove `SkillService.register()`, `SkillRegistration`, the runtime pseudo-provider and reserved-name rules, runtime revisions/cache branches, and runtime-only source/rank normalization. Tests that need an embedded skill register a small real provider. Retain `providerRevision` as the in-flight discovery epoch, but key completed catalogs by cwd alone: every provider mutation synchronously clears the cache, and the post-await revision comparison already prevents inserting stale work. Remove `whenToUse`, `SkillCandidate.path`, and `SkillDefinition.path` from the skill contract and local-provider copies while retaining provider locator/root paths; retain `metadata`, `disableModelInvocation`, `source`, `provider`, `locator`, and `resourceBase` as either deliberate extension vocabulary or production-consumed fields. + +Amend the skill-system RFC, README, JSDoc, catalogs, and tests. Agent-scoped system-prompt sections, tool providers, and variables are explicitly outside this proposal: final #224 made all three part of the `setup(agent.ctx)` contributor contract, so absence of a fixed in-repo scoped registration is not evidence of non-consumption. + +## Alternatives considered + +**Keep runtime skill registration for embedders.** It is a deliberate synchronous direct-definition convenience in the implemented skill RFC. A small provider wrapper can expose the same embedded data under effect-owned lifetime, but it must implement async `list()`/`get()`, carry provider identity, and accept provider duplicate semantics. The proposal chooses that one regular path over preserving a second ranking, validation, cache-invalidation, and lookup path. + +## Acceptance criteria + +- Skill collection has one provider-backed path, a cwd-only completed-cache key, and a revision epoch only for in-flight invalidation; retained skill fields have a production reader or a recorded deliberate extension contract. +- Agent-scoped prompt sections, variables, tool providers, tool guards, and structured-output commit behavior in native and Code Mode remain unchanged. +- Typecheck, coverage, snapshots, doc-sync, module-graph verification, build, and hygiene pass. + +## Risks + +This is a compile-visible contraction of the pre-release skill registry. External programmatic `list()`/`get()` consumers lose `whenToUse` routing hints and candidate/definition `path`; the shipped model catalog never renders them, and resource resolution keeps its explicit `resourceBase` plus provider-owned opaque locator, but those fields are not observationally identical. Skill-local frontmatter parsing must continue to preserve and validate the supported metadata schema, and external providers remain able to supply embedded, filesystem, remote, or other skill sources. diff --git a/docs/rfc/proposed/simplification/2026-07-12-simplify-session-log-representation.md b/docs/rfc/proposed/simplification/2026-07-12-simplify-session-log-representation.md index d322e246df..f335afafe1 100644 --- a/docs/rfc/proposed/simplification/2026-07-12-simplify-session-log-representation.md +++ b/docs/rfc/proposed/simplification/2026-07-12-simplify-session-log-representation.md @@ -8,15 +8,15 @@ The session log maintains two representations that cost more machinery than thei `SurfaceManager` stores the same order in an array, a seq map, and mutable `prev`/`next` links. Production never reads `prev`; compact's sole `next` read is the successor of an array position. Replacement already uses `indexOf`, so the links do not make its dominant operation constant-time. A seq array with linear replacement lookup has the same asymptotic replacement cost and one representation to validate. -The request-header subsystem implements a custom system/tool delta codec and transmission-decision layer even though its contract says deltas are an encoding optimization, not a reconstructability requirement. A canonical full `request/header` only when the assembled header changes preserves replay while deleting `SystemDelta`, `ToolsDelta`, round-trip fallback, and the durable `request/header-delta` variant. Codec-only vocabulary disappears with the codec, not because its individual arms were invalid. +The request-header subsystem implements a custom system/tool delta codec and transmission-decision layer even though its contract says deltas are an encoding optimization, not a reconstructability requirement. Retaining the initial/resume full snapshot at each loop-instance boundary, then writing a canonical full `request/header` whenever that instance's assembled header changes, preserves replay while deleting `SystemDelta`, `ToolsDelta`, round-trip fallback, and the durable `request/header-delta` variant. Codec-only vocabulary disappears with the codec, not because its individual arms were invalid. This proposal deliberately retains append and replacement `sourceEventSeqs`, crash-repair provenance, and all `SessionStartSource` variants: implemented RFCs give those fields an audit/interception role that zero current readers does not overturn. ## Proposal -Make `SurfaceManager.nodes` a `readonly number[]` of event sequences and remove the public `SurfaceNode` shape. Keep the existing replacement generation; update tool-pairing balance and compaction callers to use array values/indices for predecessor, successor, and replacement ranges, removing node links and the seq-to-node map. Replace header deltas with canonical full changed-header snapshots and remove the delta codec/event/tests. +Make `SurfaceManager.nodes` a `readonly number[]` of event sequences and remove the public `SurfaceNode` shape. Keep the internal replace-generation signal; update tool-pairing balance and compaction callers to use array values/indices for predecessor, successor, and replacement ranges, removing node links and the seq-to-node map. Replace post-anchor header deltas with canonical full changed-header snapshots and remove the delta codec/event/tests; initial and resume anchors remain full snapshots even when the folded header is unchanged. -Amend the session-surface and reconstructable-request RFCs where they describe the removed encoding. Update event types/invariants, request logging/replay, persistence fixtures, generated catalogs, package docs, and snapshots. Give changed full snapshots an explicit `change` reason (or simplify the reason contract as part of the same implementation), so they are distinguishable from initial/resume/fallback writes. +Amend the session-surface and reconstructable-request RFCs where they describe the removed encoding. Update event types/invariants, request logging/replay, persistence fixtures, generated catalogs, package docs, and snapshots. Replace the codec-only `fallback` reason with an explicit `change` reason for post-anchor full snapshots, distinguishing them from the retained `initial` and `resume` anchors. `SESSION_FORMAT_VERSION` is deliberately pinned at `0`, so an old v0 log containing `request/header-delta` would otherwise pass the version check and silently lose header changes after the delta fold is deleted. Seed/load validation must reject that legacy event fail-loud at the format boundary; no compatibility fold or migration is added. @@ -26,10 +26,10 @@ Amend the session-surface and reconstructable-request RFCs where they describe t ## Acceptance criteria -- `SurfaceManager.nodes` is one ordered seq array with no `SurfaceNode`, link fields, or seq-to-node map; incremental append processing and replacement-generation invalidation remain. +- `SurfaceManager.nodes` is one ordered seq array with no `SurfaceNode`, link fields, or seq-to-node map; incremental append processing and the internal replace-generation signal remain, while the separate public `invalidate()` deletion stays owned by the dead-surface RFC. - Replaying full changed-header snapshots reconstructs exactly the same requests; no header-delta event/type/codec remains. - A v0 seed or persisted log containing legacy `request/header-delta` is rejected before replay, with coverage for JSONL and SQLite load paths. -- Current-version JSONL/SQLite replay, provenance, crash repair, compaction, snapshots, invariants, typecheck, coverage, doc-sync, build, and hygiene pass. +- New-shape v0 JSONL/SQLite replay, provenance, crash repair, compaction, snapshots, invariants, typecheck, coverage, doc-sync, build, and hygiene pass. ## Risks diff --git a/examples/coding-agent/tests/keyless-smoke.e2e.ts b/examples/coding-agent/tests/keyless-smoke.e2e.ts index c6b9f930a8..ea223bbad4 100644 --- a/examples/coding-agent/tests/keyless-smoke.e2e.ts +++ b/examples/coding-agent/tests/keyless-smoke.e2e.ts @@ -25,6 +25,8 @@ import { afterEach, describe, expect, it } from 'vitest' * product. */ +// TODO(loader-smoke-harness): extract the shared spawn/tempdir/timeout/EOF +// harness used here, code-mode-keyless-smoke, and cordis-agent's keyless smoke. // The dsh-stdio-agent bin (the demo:repl entry) and this example's cordis.yml. // The bin resolves its config-path arg from CWD; the test spawns from a temp // cwd, so we pass the example config's ABSOLUTE path. diff --git a/packages/core/agent/src/index.ts b/packages/core/agent/src/index.ts index b77e3e8a60..7864f5938c 100644 --- a/packages/core/agent/src/index.ts +++ b/packages/core/agent/src/index.ts @@ -202,6 +202,8 @@ interface FactorySlot { */ export class AgentRegistry extends Service { private store = new Map() + // TODO(agent-entry-mirror): derive exact-object checks from store.get(agent.id) + // plus entry.agent identity; this WeakMap mirrors the authoritative id map. private entries = new WeakMap() private factory: FactorySlot | undefined diff --git a/packages/guard/repeat-tool-guard/src/index.ts b/packages/guard/repeat-tool-guard/src/index.ts index 919d0541ba..6a5662d693 100644 --- a/packages/guard/repeat-tool-guard/src/index.ts +++ b/packages/guard/repeat-tool-guard/src/index.ts @@ -202,6 +202,8 @@ export function apply(ctx: Context, config: Config): void { throw new Error(`repeat-tool-guard: invalid argumentsPreviewChars ${argumentsPreviewChars} — must be an integer >= 1`) } + // TODO(agent-keyed-repeat-chain): key a WeakMap by the Agent itself; that + // removes the disposal-only status listener and cannot collide on id reuse. const chains = new Map() /** Whether a tool participates in the chain (untracked calls are transparent: they neither count nor reset). */ diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index de2dec6278..a3fdc38f97 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -107,6 +107,8 @@ export const name = 'acp' // because `initialize` advertises `loadSession: true`. `tools` lets a tool own // how its calls render (`presentCall`/`presentResult`); the bridge looks up the // definition by name and falls back to a generic presentation when absent. +// TODO(acp-session-inject): drop `sessions`; this bridge never reads +// ctx.sessions, and agent/session ownership is already behind ctx.agents. export const inject = ['agents', 'sessions', 'sessionPersistence', 'tools', 'userInteraction'] /** @@ -353,11 +355,12 @@ export function apply(ctx: Context, config: AcpConfig): void { const makePresenter = (agent?: Agent): ToolPresenter => new ToolPresenter(tools, (message) => { logger.warn(message) }, agent) // TODO(derive-acp-session-id): derive an event's id from agent.session and - // verify sessions.get(id)?.agent === agent; then this reverse map disappears. + // verify sessions.get(id)?.agent === agent; then remove this reverse map and + // SessionRecord.sessionId, whose sole read duplicates the same identity. // Live sessions keyed by id (RFC 011 multi-session), plus an agent→sessionId // reverse map so `agent/*` events (which carry only the Agent) demux in O(1). - // The two stay in lockstep: a record is added to `sessions` and the agent to - // `bySession` together, and removed together. + // The forward record and weak reverse entry are installed together; removing + // the record releases its strong Agent reference, so the WeakMap entry expires. const sessions = new Map() const bySession = new WeakMap() // Session ids whose `session/load` is mid-`resume()` (the slot is reserved diff --git a/packages/workflow/tool-workflow/README.md b/packages/workflow/tool-workflow/README.md index 44160d8fc1..a9c8900c4e 100644 --- a/packages/workflow/tool-workflow/README.md +++ b/packages/workflow/tool-workflow/README.md @@ -4,7 +4,7 @@ The model-facing **`workflow` tool**: run a JavaScript orchestration script that ## What the model sees -Two parameters: `script` (required — the full `export const meta = {...}` + body text; the tool DESCRIPTION carries the complete authoring contract: hooks, semantics, the supported schema subset) and `args` (optional JSON object exposed to the script as the `args` global; a bare list is wrapped as a field, a deliberate deviation from Claude Code's any-JSON `args` so the wire schema stays honest). The plugin also contributes a `tool:` system-prompt section carrying the usage policy — use the tool only on an explicit user ask for a workflow / large orchestration; prefer plain subagent calls for one or two delegations — per the convention that tool guidance ships with the tool plugin, never in the deployment persona. +Three parameters: `meta` (required identity data: `name`, `description`, and optional progress annotations), `script` (required plain JavaScript body — no `export const meta` statement; the tool description carries the complete authoring contract), and `args` (optional JSON object exposed to the script as the `args` global; wrap a bare list in a field so the wire schema stays honest). The plugin also contributes a `tool:` system-prompt section carrying the usage policy — use the tool only on an explicit user ask for a workflow / large orchestration; prefer plain subagent calls for one or two delegations — per the convention that tool guidance ships with the tool plugin, never in the deployment persona. ## Lifecycle @@ -12,7 +12,7 @@ Collection is SYNCHRONOUS this cut (like [`dsh-tool-subagent`](../../subagent/to ## Render intent -Decided up front (per the [render-intent RFC](../../../docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md)): a `generic` card titled `workflow: `, the name sniffed TEXTUALLY from `args.script` (presentation must be a pure function of args, so it cannot ask the engine to parse); the script text rides as `rawInput`. The result keeps the generic card. +Decided up front (per the [render-intent RFC](../../../docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md)): a `generic` card titled `workflow: `, read directly from `args.meta.name` (presentation is a pure function of args and does not ask the engine to parse); the script text rides as `rawInput`. The result keeps the generic card. ## Config From 35804737fa9d5c7d8f27299408e2fa60e2ff6d02 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 13 Jul 2026 21:55:38 +0800 Subject: [PATCH 231/232] docs: address simplification RFC review --- docs/rfc/INDEX.md | 7 ++-- ...am-workflow-progress-through-tool-calls.md | 39 +++++++++++++++++++ .../2026-06-20-unify-agent-and-session-id.md | 2 +- ...6-07-12-drop-unconsumed-registry-events.md | 32 --------------- ...2-drop-unconsumed-skill-provider-events.md | 32 +++++++++++++++ ...12-collapse-workflow-to-foreground-core.md | 2 +- ...-12-prune-unused-skill-registry-surface.md | 2 +- 7 files changed, 78 insertions(+), 38 deletions(-) create mode 100644 docs/rfc/proposed/feature/2026-07-13-stream-workflow-progress-through-tool-calls.md delete mode 100644 docs/rfc/proposed/simplification/2026-07-12-drop-unconsumed-registry-events.md create mode 100644 docs/rfc/proposed/simplification/2026-07-12-drop-unconsumed-skill-provider-events.md rename docs/rfc/{proposed => rejected}/simplification/2026-07-12-collapse-workflow-to-foreground-core.md (97%) rename docs/rfc/{proposed => rejected}/simplification/2026-07-12-prune-unused-skill-registry-surface.md (96%) diff --git a/docs/rfc/INDEX.md b/docs/rfc/INDEX.md index 21ee29a58d..f6dcdf6a0c 100644 --- a/docs/rfc/INDEX.md +++ b/docs/rfc/INDEX.md @@ -10,6 +10,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; |---|---| | [Pre-tool input rewrite — a consistent design](proposed/feature/2026-06-30-pre-tool-input-rewrite.md) | 2026-06-30 | | [Claude Code and Codex subagent backends (out-of-process delegation to external coding agents)](proposed/feature/2026-07-07-claude-code-and-codex-subagent-backends.md) | 2026-07-07 | +| [Stream workflow progress through tool calls](proposed/feature/2026-07-13-stream-workflow-progress-through-tool-calls.md) | 2026-07-13 | ### Simplification @@ -17,9 +18,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; |---|---| | [Unify the agent id and the session id](proposed/simplification/2026-06-20-unify-agent-and-session-id.md) | 2026-06-20 | | [Prune dead public and result surface](proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md) | 2026-07-04 | -| [Collapse workflows to the exercised foreground core](proposed/simplification/2026-07-12-collapse-workflow-to-foreground-core.md) | 2026-07-12 | -| [Drop unconsumed registry events](proposed/simplification/2026-07-12-drop-unconsumed-registry-events.md) | 2026-07-12 | -| [Prune unused skill registry surface](proposed/simplification/2026-07-12-prune-unused-skill-registry-surface.md) | 2026-07-12 | +| [Drop unconsumed skill provider events](proposed/simplification/2026-07-12-drop-unconsumed-skill-provider-events.md) | 2026-07-12 | | [Prune unused web seam fields](proposed/simplification/2026-07-12-prune-unused-web-seam-fields.md) | 2026-07-12 | | [Simplify session-log representation](proposed/simplification/2026-07-12-simplify-session-log-representation.md) | 2026-07-12 | @@ -203,6 +202,8 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand; | [Return the ACP bridge to one live session per connection](rejected/simplification/2026-06-20-single-session-acp-bridge.md) | 2026-06-20 | | [Truncate interrupted final turns on load](rejected/simplification/2026-06-20-truncate-interrupted-turns.md) | 2026-06-20 | | [Prune the unimplemented subagent seam vocabulary](rejected/simplification/2026-07-04-prune-unimplemented-subagent-vocabulary.md) | 2026-07-04 | +| [Collapse workflows to the exercised foreground core](rejected/simplification/2026-07-12-collapse-workflow-to-foreground-core.md) | 2026-07-12 | +| [Prune unused skill registry surface](rejected/simplification/2026-07-12-prune-unused-skill-registry-surface.md) | 2026-07-12 | ### Architecture diff --git a/docs/rfc/proposed/feature/2026-07-13-stream-workflow-progress-through-tool-calls.md b/docs/rfc/proposed/feature/2026-07-13-stream-workflow-progress-through-tool-calls.md new file mode 100644 index 0000000000..8965880712 --- /dev/null +++ b/docs/rfc/proposed/feature/2026-07-13-stream-workflow-progress-through-tool-calls.md @@ -0,0 +1,39 @@ +# RFC: Stream workflow progress through tool calls + +Status: proposed + +## Problem + +The workflow engine intentionally emits balanced `workflow/*` observation events for run, phase, narration, and child-agent progress, but no production consumer presents them. Editors therefore show one pending workflow tool card until the final result even while the engine already reports which phase is active, what the script logged, and which children started or settled. The [dynamic-workflows decision](../../implemented/feature/2026-07-05-dynamic-workflows.md) explicitly reserves ACP progress UI for this event stream. + +Making `dsh-acp` listen to workflow events directly would invert the capability boundary: the generic UI bridge would depend on an optional workflow package and special-case one tool name. The tool pipeline already owns the routing facts a live update needs—agent and call id—but exposes only pure pending/final presenters, so a long-running tool has no provider-neutral way to report transient UI state between them. + +## Proposal + +Add a live progress channel to `dsh-tools`. The registry-owned `ToolExecution` gains `reportProgress(view): boolean`, where `view` is a detached provider-neutral generic progress snapshot containing an optional replacement title and UI-facing content blocks. Progress cannot change the call's args-derived card tag, kind, raw input, locations, terminal intent, or diff intent; it updates only the live title/content within the presentation chosen up front. While the execution is active, the method validates and snapshots the view, then dispatches a contained, agent-scoped `tools/progress` observation carrying the authoritative execution identity and snapshot. Once final-result processing begins it returns `false` and emits nothing, so a late asynchronous reporter cannot overwrite a terminal card. Observer exceptions are logged and cannot fail the tool. + +`dsh-acp` consumes `tools/progress` generically. It resolves the execution's agent through its existing agent-to-session map and emits an in-progress `tool_call_update` for the same call id. Because reporting is available only inside the tool execution pipeline, the durable `tool/call` and its ACP `tool_call` always precede the first update; closing the reporter before `tools/result` ensures no progress update follows the completed/failed card. Progress is live UI state rather than model input or durable history: session replay continues to reconstruct the pending and final cards from `tool/call` and `tool/result` without replaying transient updates. + +`dsh-tool-workflow` becomes the first producer. It keeps a plugin-owned reducer keyed by `WorkflowRun.id`, installed synchronously after `ctx.workflows.start()` returns and before worker messages can be delivered. The reducer consumes the existing phase, log, agent-start, agent-end, and end events, reporting a replacement snapshot with the current phase, latest log line, active child labels, and completed/failed/cancelled counts. It does not accumulate a narration transcript; settled children leave the active set and become counters. The initial snapshot comes from the returned run's id/meta, and `workflow/end`, tool settlement, or plugin disposal removes the reducer entry. The six workflow events, their metadata, paired child lifecycle, run handle, cancellation channels, and observer containment remain unchanged; third-party observers can continue consuming them directly. + +Update the tool execution/presentation docs, generated event and API catalogs, workflow package docs, and the workflow data-structure catalog. ACP integration coverage must exercise the real workflow tool and worker seam with a scripted model boundary; the primary ACP snapshot suite adds one workflow-progress scenario because this changes the editor-facing transcript. + +## Alternatives considered + +**Delete the workflow observation surface.** Rejected in [the collapse-workflow simplification](../../rejected/simplification/2026-07-12-collapse-workflow-to-foreground-core.md): the events and their balanced lifecycle are intentional, and the missing piece is a consumer. + +**Teach ACP about workflows directly.** This could map `WorkflowRunInfo` to a session and card, but it would make the generic bridge depend on an optional capability and bypass the rule that tools own presentation intent. A tool-progress channel solves the same routing problem for every long-running tool. + +**Persist every progress update as a session event.** That would make live narration replayable, but it would permanently enlarge logs with state whose authoritative durable outcome is already the tool call/result pair. If resumable workflow progress becomes a product requirement, it needs a workflow-journaling design rather than UI snapshots disguised as durable facts. + +## Acceptance criteria + +- `ToolExecution.reportProgress()` is registry-owned, agent-scoped, snapshotting, observer-contained, and returns `false` without dispatch after terminal processing starts. +- ACP routes progress to the correct call in the correct live session; concurrent workflows in different sessions cannot cross-talk, and no `tool_call_update` appears before its `tool_call` or after its terminal update. +- Workflow progress shows the current phase, latest log line, active children, and outcome counts while preserving all existing `workflow/*` events and run semantics. +- Cancellation, worker death, tool failure, session close, and plugin disposal release reducer state; replay emits only the durable pending/final card pair. +- Unit, workflow integration, ACP integration, snapshot, typecheck, coverage, doc-sync, module-graph, build, and hygiene gates pass. + +## Risks + +This adds a public live-progress method and event to the tool seam, so implementations must keep the active/terminal boundary exact and detach snapshots before observers see them. A workflow can emit many progress changes; the bounded reducer avoids transcript growth but still sends one UI update per meaningful event. If measured clients need coalescing, it must be a defaulted validated bridge configuration rather than a hardcoded throttle. Transient progress intentionally disappears on replay, so the final tool result remains the only durable workflow card content. diff --git a/docs/rfc/proposed/simplification/2026-06-20-unify-agent-and-session-id.md b/docs/rfc/proposed/simplification/2026-06-20-unify-agent-and-session-id.md index b3670dd9a1..1a69f9ebe6 100644 --- a/docs/rfc/proposed/simplification/2026-06-20-unify-agent-and-session-id.md +++ b/docs/rfc/proposed/simplification/2026-06-20-unify-agent-and-session-id.md @@ -18,7 +18,7 @@ Make an agent's registry id equal its session id. `CreateAgentOptions` accepts o The config-driven path must first settle its currently hidden resume-or-create policy. Today it uses a stable agent label and fresh UUID-suffixed session id to avoid colliding with a durable log on the next run. Under unification it must deliberately resume the fixed id, mint a fresh combined id, or expose an explicit policy; implementation must not pick silently. -`agent/created` and `agent/disposed` remain outside this proposal. They are paired publication lifecycle events, not identity aliases; any later consumer-free removal belongs in the dedicated [registry-event simplification](./2026-07-12-drop-unconsumed-registry-events.md) after a fresh search. +`agent/created` and `agent/disposed` remain outside this proposal. They are paired publication lifecycle events, not identity aliases; any later consumer-free removal needs its own proposal after a fresh search. ## Alternatives considered diff --git a/docs/rfc/proposed/simplification/2026-07-12-drop-unconsumed-registry-events.md b/docs/rfc/proposed/simplification/2026-07-12-drop-unconsumed-registry-events.md deleted file mode 100644 index 52e30879e2..0000000000 --- a/docs/rfc/proposed/simplification/2026-07-12-drop-unconsumed-registry-events.md +++ /dev/null @@ -1,32 +0,0 @@ -# RFC: Drop unconsumed registry events - -Status: proposed - -## Problem - -Four registry notifications are produced but have no production listener. The generated producer/consumer matrix and exact event-name searches find only declarations, emit sites, invariant metadata, tests, generated catalogs, and prose for `tools/change`, `system-prompt/change`, `skill/provider-added`, and `skill/provider-removed`. - -No shipped path uses these signals for invalidation: request assembly deliberately reruns for every step, tool/system-prompt membership may be agent-scoped, and skill discovery reads providers on demand. The payloadless tool/system-prompt notices are also insufficient for a scoped observer because a change may be local to one agent but the event cannot identify that scope. - -Earlier registry work retained tool/system-prompt notifications as low-cost hooks for a hypothetical live UI even while the equivalent LLM and web notifications were removed. The new evidence is that no owner has appeared, per-step assembly needs no signal, and scope-local membership has made the old payload insufficient for that hypothetical owner. This proposal does not include `subagent/provider-added`/`removed`, which `tool-subagent` consumes to tolerate concurrent sibling-plugin loading. - -## Proposal - -Delete the four declarations and every emit path, rollback-order branch, invariant-table entry, test, and generated catalog/matrix row that exists only for them. Remove the corresponding registry README/JSDoc contract. Where tests used an event to observe cleanup, assert public lookup or assembled output instead. - -Amend the [agent-scope RFC](../../implemented/architecture/2026-07-08-agent-scope-contexts.md) and reconstructable-request documentation so current behavior has one home: request inputs are recomputed at the request boundary, not maintained by invalidation signals. - -## Alternatives considered - -**Keep cheap notifications for future plugins.** An external plugin could subscribe later, and provider lifecycle signals can solve sibling-load races. The subagent event demonstrates the bar: it has a real concurrent loader consumer and a payload tailored to that job. These four have neither; a future consumer should introduce the scoped identity and timing it demonstrably needs. - -## Acceptance criteria - -- The generated event matrix contains no row or registry-subject inventory entry for the four notifications. -- Tool schema assembly, system-prompt assembly, skill discovery, ordinary effect rollback/disposal, and registry lookup cleanup behave unchanged; listener-triggered rollback disappears with the events. -- The real subagent provider lifecycle consumer remains covered. -- Typecheck, coverage, snapshots, doc-sync, module-graph verification, build, and hygiene pass. - -## Risks - -This deliberately removes pre-release plugin observation points. A future live registry UI would need a new scoped snapshot/change contract instead of subscribing to payloadless global notifications. diff --git a/docs/rfc/proposed/simplification/2026-07-12-drop-unconsumed-skill-provider-events.md b/docs/rfc/proposed/simplification/2026-07-12-drop-unconsumed-skill-provider-events.md new file mode 100644 index 0000000000..9a0d9d2cb7 --- /dev/null +++ b/docs/rfc/proposed/simplification/2026-07-12-drop-unconsumed-skill-provider-events.md @@ -0,0 +1,32 @@ +# RFC: Drop unconsumed skill provider events + +Status: proposed + +## Problem + +Two skill-registry notifications are produced but have no production listener. The generated producer/consumer matrix and exact event-name searches find only declarations, emit sites, tests, generated catalogs, and prose for `skill/provider-added` and `skill/provider-removed`. + +Skill discovery reads the current provider map on demand, provider registration synchronously clears completed catalogs, and the post-await revision check prevents stale discovery from entering the cache. No sibling plugin waits for a skill provider through these events, unlike the live `subagent/provider-added` consumer that tolerates concurrent sibling loading. + +`tools/change` and `system-prompt/change` are explicitly outside this proposal. Existing simplification decisions retain them as intentional observation points for live tool and prompt UIs, and self-referential mounted plugins already use `tools/change`. This proposal also leaves `subagent/provider-added`/`removed` unchanged because `tool-subagent` has a production lifecycle consumer. + +## Proposal + +Delete the two skill-provider declarations and every emit path, rollback-order branch, test, and generated catalog/matrix row that exists only for them. Remove the corresponding skill-registry README/JSDoc contract. Where tests used an event to observe cleanup, assert provider lookup or collected output instead. + +Amend the skill-system RFC and package documentation so provider registration is described as direct effect-owned state with cache invalidation, not as a lifecycle notification contract. + +## Alternatives considered + +**Keep skill-provider notifications for future plugins.** A third-party plugin could observe provider availability, but direct provider registration and on-demand lookup are the extension contract; no current consumer needs a push signal. If a future sibling-load race appears, it can introduce a notification with the identity and readiness semantics that consumer requires, as the subagent registry did. + +## Acceptance criteria + +- The generated event matrix contains no row for `skill/provider-added` or `skill/provider-removed`. +- Skill discovery, direct runtime registration, provider effect rollback/disposal, cache invalidation, and registry lookup cleanup behave unchanged; listener-triggered rollback disappears with the events. +- `tools/change`, `system-prompt/change`, and the real subagent provider lifecycle consumer remain documented and covered. +- Typecheck, coverage, snapshots, doc-sync, module-graph verification, build, and hygiene pass. + +## Risks + +This removes pre-release skill-provider observation points while retaining both ways third-party plugins contribute skills: direct runtime registration and provider registration. A future consumer that needs live provider availability must add a purpose-built notification rather than relying on these generic events. diff --git a/docs/rfc/proposed/simplification/2026-07-12-collapse-workflow-to-foreground-core.md b/docs/rfc/rejected/simplification/2026-07-12-collapse-workflow-to-foreground-core.md similarity index 97% rename from docs/rfc/proposed/simplification/2026-07-12-collapse-workflow-to-foreground-core.md rename to docs/rfc/rejected/simplification/2026-07-12-collapse-workflow-to-foreground-core.md index d112aa2a3f..7624629d41 100644 --- a/docs/rfc/proposed/simplification/2026-07-12-collapse-workflow-to-foreground-core.md +++ b/docs/rfc/rejected/simplification/2026-07-12-collapse-workflow-to-foreground-core.md @@ -1,6 +1,6 @@ # RFC: Collapse workflows to the exercised foreground core -Status: proposed +Status: rejected — Workflow progress is an intentional observation surface; make it useful through a consumer instead of deleting it. ## Problem diff --git a/docs/rfc/proposed/simplification/2026-07-12-prune-unused-skill-registry-surface.md b/docs/rfc/rejected/simplification/2026-07-12-prune-unused-skill-registry-surface.md similarity index 96% rename from docs/rfc/proposed/simplification/2026-07-12-prune-unused-skill-registry-surface.md rename to docs/rfc/rejected/simplification/2026-07-12-prune-unused-skill-registry-surface.md index 1df837e026..3f585eb64e 100644 --- a/docs/rfc/proposed/simplification/2026-07-12-prune-unused-skill-registry-surface.md +++ b/docs/rfc/rejected/simplification/2026-07-12-prune-unused-skill-registry-surface.md @@ -1,6 +1,6 @@ # RFC: Prune unused skill registry surface -Status: proposed +Status: rejected — Direct runtime skill registration is an intentional extension path for third-party plugins. ## Problem From be67ca41ca724c8a18ef98d440e740dee37a477c Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Mon, 13 Jul 2026 22:29:23 +0800 Subject: [PATCH 232/232] docs: address review bot feedback --- ...6-07-13-stream-workflow-progress-through-tool-calls.md | 8 +++++--- .../2026-07-12-prune-unused-skill-registry-surface.md | 2 +- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/docs/rfc/proposed/feature/2026-07-13-stream-workflow-progress-through-tool-calls.md b/docs/rfc/proposed/feature/2026-07-13-stream-workflow-progress-through-tool-calls.md index 8965880712..200ed50b1e 100644 --- a/docs/rfc/proposed/feature/2026-07-13-stream-workflow-progress-through-tool-calls.md +++ b/docs/rfc/proposed/feature/2026-07-13-stream-workflow-progress-through-tool-calls.md @@ -14,7 +14,9 @@ Add a live progress channel to `dsh-tools`. The registry-owned `ToolExecution` g `dsh-acp` consumes `tools/progress` generically. It resolves the execution's agent through its existing agent-to-session map and emits an in-progress `tool_call_update` for the same call id. Because reporting is available only inside the tool execution pipeline, the durable `tool/call` and its ACP `tool_call` always precede the first update; closing the reporter before `tools/result` ensures no progress update follows the completed/failed card. Progress is live UI state rather than model input or durable history: session replay continues to reconstruct the pending and final cards from `tool/call` and `tool/result` without replaying transient updates. -`dsh-tool-workflow` becomes the first producer. It keeps a plugin-owned reducer keyed by `WorkflowRun.id`, installed synchronously after `ctx.workflows.start()` returns and before worker messages can be delivered. The reducer consumes the existing phase, log, agent-start, agent-end, and end events, reporting a replacement snapshot with the current phase, latest log line, active child labels, and completed/failed/cancelled counts. It does not accumulate a narration transcript; settled children leave the active set and become counters. The initial snapshot comes from the returned run's id/meta, and `workflow/end`, tool settlement, or plugin disposal removes the reducer entry. The six workflow events, their metadata, paired child lifecycle, run handle, cancellation channels, and observer containment remain unchanged; third-party observers can continue consuming them directly. +`dsh-tool-workflow` becomes the first producer. Each tool execution installs a compact event capture before calling `ctx.workflows.start()`, because a valid engine may emit progress synchronously inside `start()`. Until the call returns, the capture reduces observed events into candidate states keyed by `WorkflowRunInfo.id`; it then selects the returned `WorkflowRun.id`, discards other candidates, reports the accumulated snapshot, and routes later matching events directly. If `start()` throws, the capture is disposed and its candidates are dropped. This preserves engine swappability without adding observer correlation to `WorkflowStartRequest` or requiring progress to wait until `start()` returns. + +The reducer consumes the existing start, phase, log, agent-start, agent-end, and end events, reporting a replacement snapshot with the current phase, latest log line, active child labels, and completed/failed/cancelled counts. It does not accumulate a narration transcript; settled children leave the active set and become counters. `workflow/end`, tool settlement, or plugin disposal removes the reducer entry and event capture. The six workflow events, their metadata, paired child lifecycle, run handle, cancellation channels, and observer containment remain unchanged; third-party observers can continue consuming them directly. Update the tool execution/presentation docs, generated event and API catalogs, workflow package docs, and the workflow data-structure catalog. ACP integration coverage must exercise the real workflow tool and worker seam with a scripted model boundary; the primary ACP snapshot suite adds one workflow-progress scenario because this changes the editor-facing transcript. @@ -30,10 +32,10 @@ Update the tool execution/presentation docs, generated event and API catalogs, w - `ToolExecution.reportProgress()` is registry-owned, agent-scoped, snapshotting, observer-contained, and returns `false` without dispatch after terminal processing starts. - ACP routes progress to the correct call in the correct live session; concurrent workflows in different sessions cannot cross-talk, and no `tool_call_update` appears before its `tool_call` or after its terminal update. -- Workflow progress shows the current phase, latest log line, active children, and outcome counts while preserving all existing `workflow/*` events and run semantics. +- Workflow progress shows the current phase, latest log line, active children, and outcome counts while preserving all existing `workflow/*` events and run semantics; a seam test engine that emits start, phase, log, child, and end events synchronously inside `start()` loses none of that reducer state. - Cancellation, worker death, tool failure, session close, and plugin disposal release reducer state; replay emits only the durable pending/final card pair. - Unit, workflow integration, ACP integration, snapshot, typecheck, coverage, doc-sync, module-graph, build, and hygiene gates pass. ## Risks -This adds a public live-progress method and event to the tool seam, so implementations must keep the active/terminal boundary exact and detach snapshots before observers see them. A workflow can emit many progress changes; the bounded reducer avoids transcript growth but still sends one UI update per meaningful event. If measured clients need coalescing, it must be a defaulted validated bridge configuration rather than a hardcoded throttle. Transient progress intentionally disappears on replay, so the final tool result remains the only durable workflow card content. +This adds a public live-progress method and event to the tool seam, so implementations must keep the active/terminal boundary exact and detach snapshots before observers see them. The pre-start capture can briefly observe unrelated workflow runs, so it holds only compact candidate state keyed by run id and drops every non-matching candidate as soon as `start()` returns. A workflow can emit many progress changes; the bounded reducer avoids transcript growth but still sends one UI update per meaningful event after correlation. If measured clients need coalescing, it must be a defaulted validated bridge configuration rather than a hardcoded throttle. Transient progress intentionally disappears on replay, so the final tool result remains the only durable workflow card content. diff --git a/docs/rfc/rejected/simplification/2026-07-12-prune-unused-skill-registry-surface.md b/docs/rfc/rejected/simplification/2026-07-12-prune-unused-skill-registry-surface.md index 3f585eb64e..cafd50e8a5 100644 --- a/docs/rfc/rejected/simplification/2026-07-12-prune-unused-skill-registry-surface.md +++ b/docs/rfc/rejected/simplification/2026-07-12-prune-unused-skill-registry-surface.md @@ -10,7 +10,7 @@ The skill service's embedded-runtime subsystem has zero production caller of `ct Remove `SkillService.register()`, `SkillRegistration`, the runtime pseudo-provider and reserved-name rules, runtime revisions/cache branches, and runtime-only source/rank normalization. Tests that need an embedded skill register a small real provider. Retain `providerRevision` as the in-flight discovery epoch, but key completed catalogs by cwd alone: every provider mutation synchronously clears the cache, and the post-await revision comparison already prevents inserting stale work. Remove `whenToUse`, `SkillCandidate.path`, and `SkillDefinition.path` from the skill contract and local-provider copies while retaining provider locator/root paths; retain `metadata`, `disableModelInvocation`, `source`, `provider`, `locator`, and `resourceBase` as either deliberate extension vocabulary or production-consumed fields. -Amend the skill-system RFC, README, JSDoc, catalogs, and tests. Agent-scoped system-prompt sections, tool providers, and variables are explicitly outside this proposal: final #224 made all three part of the `setup(agent.ctx)` contributor contract, so absence of a fixed in-repo scoped registration is not evidence of non-consumption. +Amend the skill-system RFC, README, JSDoc, catalogs, and tests. Agent-scoped system-prompt sections, tool providers, and variables are explicitly outside this proposal: the [agent-scope contributor contract](../../implemented/architecture/2026-07-08-agent-scope-contexts.md) intentionally allows all three to be registered during `setup(agentCtx)` through the agent-owned context, so absence of a fixed in-repo scoped registration is not evidence of non-consumption. ## Alternatives considered